1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* This program is the user interface to the C compiler and possibly to
23 other compilers. It is used because compilation is a complicated procedure
24 which involves running several programs and passing temporary files between
25 them, forwarding the users switches to those programs selectively,
26 and deleting the temporary files at the end.
28 CC recognizes how to compile each input file by suffixes in the file names.
29 Once it knows which kind of compilation to perform, the procedure for
30 compilation is specified by a string called a "spec". */
32 /* A Short Introduction to Adding a Command-Line Option.
34 Before adding a command-line option, consider if it is really
35 necessary. Each additional command-line option adds complexity and
36 is difficult to remove in subsequent versions.
38 In the following, consider adding the command-line argument
41 1. Each command-line option is specified in the specs file. The
42 notation is described below in the comment entitled "The Specs
45 2. In this file, add an entry to "option_map" equating the long
46 `--' argument version and any shorter, single letter version. Read
47 the comments in the declaration of "struct option_map" for an
48 explanation. Do not omit the first `-'.
50 3. Look in the "specs" file to determine which program or option
51 list should be given the argument, e.g., "cc1_options". Add the
52 appropriate syntax for the shorter option version to the
53 corresponding "const char *" entry in this file. Omit the first
54 `-' from the option. For example, use `-bar', rather than `--bar'.
56 4. If the argument takes an argument, e.g., `--baz argument1',
57 modify either DEFAULT_SWITCH_TAKES_ARG or
58 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
61 5. Document the option in this file's display_help(). If the
62 option is passed to a subprogram, modify its corresponding
63 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
66 6. Compile and test. Make sure that your new specs file is being
67 read. For example, use a debugger to investigate the value of
68 "specs_file" in main(). */
72 #include "coretypes.h"
73 #include "multilib.h" /* before tm.h */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
88 # include <sys/mman.h>
90 /* This is on Solaris. */
91 # include <sys/types.h>
96 # define MAP_FAILED ((void *)-1)
99 /* By default there is no special suffix for target executables. */
100 /* FIXME: when autoconf is fixed, remove the host check - dj */
101 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
102 #define HAVE_TARGET_EXECUTABLE_SUFFIX
105 /* By default there is no special suffix for host executables. */
106 #ifdef HOST_EXECUTABLE_SUFFIX
107 #define HAVE_HOST_EXECUTABLE_SUFFIX
109 #define HOST_EXECUTABLE_SUFFIX ""
112 /* By default, the suffix for target object files is ".o". */
113 #ifdef TARGET_OBJECT_SUFFIX
114 #define HAVE_TARGET_OBJECT_SUFFIX
116 #define TARGET_OBJECT_SUFFIX ".o"
119 static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
121 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
122 #ifndef LIBRARY_PATH_ENV
123 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
127 #define kill(p,s) raise(s)
130 /* If a stage of compilation returns an exit status >= 1,
131 compilation of that file ceases. */
133 #define MIN_FATAL_STATUS 1
135 /* Flag set by cppspec.c to 1. */
138 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
139 static bool at_file_supplied;
141 /* Flag saying to pass the greatest exit code returned by a sub-process
142 to the calling program. */
143 static int pass_exit_codes;
145 /* Definition of string containing the arguments given to configure. */
146 #include "configargs.h"
148 /* Flag saying to print the directories gcc will search through looking for
149 programs, libraries, etc. */
151 static int print_search_dirs;
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static const char *print_file_name = NULL;
158 /* As print_file_name, but search for executable file. */
160 static const char *print_prog_name = NULL;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory;
167 static int print_sysroot;
169 /* Flag saying to print the relative path we'd use to
170 find OS libraries given the current compiler flags. */
172 static int print_multi_os_directory;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list;
184 /* Flag saying to print the version of gcc and its sub-processes. */
186 static int print_version;
188 /* Flag saying to print the sysroot suffix used for searching for
191 static int print_sysroot_headers_suffix;
193 /* Flag indicating whether we should print the command and arguments */
195 static int verbose_flag;
197 /* Flag indicating whether we should ONLY print the command and
198 arguments (like verbose_flag) without executing the command.
199 Displayed arguments are quoted so that the generated command
200 line is suitable for execution. This is intended for use in
201 shell scripts to capture the driver-generated command line. */
202 static int verbose_only_flag;
204 /* Flag indicating how to print command line options of sub-processes. */
206 static int print_subprocess_help;
208 /* Flag indicating whether we should report subprocess execution times
209 (if this is supported by the system - see pexecute.c). */
211 static int report_times;
213 /* Whether we should report subprocess execution times to a file. */
215 FILE *report_times_to_file = NULL;
217 /* Nonzero means place this string before uses of /, so that include
218 and library files can be found in an alternate location. */
220 #ifdef TARGET_SYSTEM_ROOT
221 static const char *target_system_root = TARGET_SYSTEM_ROOT;
223 static const char *target_system_root = 0;
226 /* Nonzero means pass the updated target_system_root to the compiler. */
228 static int target_system_root_changed;
230 /* Nonzero means append this string to target_system_root. */
232 static const char *target_sysroot_suffix = 0;
234 /* Nonzero means append this string to target_system_root for headers. */
236 static const char *target_sysroot_hdrs_suffix = 0;
238 /* Nonzero means write "temp" files in source directory
239 and use the source file's name in them, and don't delete them. */
241 static enum save_temps {
242 SAVE_TEMPS_NONE, /* no -save-temps */
243 SAVE_TEMPS_CWD, /* -save-temps in current directory */
244 SAVE_TEMPS_OBJ /* -save-temps in object directory */
247 /* Output file to use to get the object directory for -save-temps=obj */
248 static char *save_temps_prefix = 0;
249 static size_t save_temps_length = 0;
251 /* Nonzero means pass multiple source files to the compiler at one time. */
253 static int combine_flag = 0;
255 /* Nonzero means use pipes to communicate between subprocesses.
256 Overridden by either of the above two flags. */
258 static int use_pipes;
260 /* The compiler version. */
262 static const char *compiler_version;
264 /* The target version specified with -V */
266 static const char *const spec_version = DEFAULT_TARGET_VERSION;
268 /* The target machine specified with -b. */
270 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
272 /* Nonzero if cross-compiling.
273 When -b is used, the value comes from the `specs' file. */
275 #ifdef CROSS_DIRECTORY_STRUCTURE
276 static const char *cross_compile = "1";
278 static const char *cross_compile = "0";
281 #ifdef MODIFY_TARGET_NAME
283 /* Information on how to alter the target name based on a command-line
284 switch. The only case we support now is simply appending or deleting a
285 string to or from the end of the first part of the configuration name. */
287 enum add_del {ADD, DELETE};
289 static const struct modify_target
291 const char *const sw;
292 const enum add_del add_del;
293 const char *const str;
295 modify_target[] = MODIFY_TARGET_NAME;
298 /* The number of errors that have occurred; the link phase will not be
299 run if this is nonzero. */
300 static int error_count = 0;
302 /* Greatest exit code of sub-processes that has been encountered up to
304 static int greatest_status = 1;
306 /* This is the obstack which we use to allocate many strings. */
308 static struct obstack obstack;
310 /* This is the obstack to build an environment variable to pass to
311 collect2 that describes all of the relevant switches of what to
312 pass the compiler in building the list of pointers to constructors
315 static struct obstack collect_obstack;
317 /* This is a list of a wrapper program and its arguments.
318 e.g. wrapper_string of "strace,-c"
319 will cause all programs to run as
320 strace -c program arguments
323 static const char *wrapper_string;
325 /* Forward declaration for prototypes. */
329 static void init_spec (void);
330 static void store_arg (const char *, int, int);
331 static void insert_wrapper (const char *);
332 static char *load_specs (const char *);
333 static void read_specs (const char *, int);
334 static void set_spec (const char *, const char *);
335 static struct compiler *lookup_compiler (const char *, size_t, const char *);
336 static char *build_search_list (const struct path_prefix *, const char *,
338 static void xputenv (const char *);
339 static void putenv_from_prefixes (const struct path_prefix *, const char *,
341 static int access_check (const char *, int);
342 static char *find_a_file (const struct path_prefix *, const char *, int, bool);
343 static void add_prefix (struct path_prefix *, const char *, const char *,
345 static void add_sysrooted_prefix (struct path_prefix *, const char *,
346 const char *, int, int, int);
347 static void translate_options (int *, const char *const **);
348 static char *skip_whitespace (char *);
349 static void delete_if_ordinary (const char *);
350 static void delete_temp_files (void);
351 static void delete_failure_queue (void);
352 static void clear_failure_queue (void);
353 static int check_live_switch (int, int);
354 static const char *handle_braces (const char *);
355 static inline bool input_suffix_matches (const char *, const char *);
356 static inline bool switch_matches (const char *, const char *, int);
357 static inline void mark_matching_switches (const char *, const char *, int);
358 static inline void process_marked_switches (void);
359 static const char *process_brace_body (const char *, const char *, const char *, int, int);
360 static const struct spec_function *lookup_spec_function (const char *);
361 static const char *eval_spec_function (const char *, const char *);
362 static const char *handle_spec_function (const char *);
363 static char *save_string (const char *, int);
364 static void set_collect_gcc_options (void);
365 static int do_spec_1 (const char *, int, const char *);
366 static int do_spec_2 (const char *);
367 static void do_option_spec (const char *, const char *);
368 static void do_self_spec (const char *);
369 static const char *find_file (const char *);
370 static int is_directory (const char *, bool);
371 static const char *validate_switches (const char *);
372 static void validate_all_switches (void);
373 static inline void validate_switches_from_spec (const char *);
374 static void give_switch (int, int);
375 static int used_arg (const char *, int);
376 static int default_arg (const char *, int);
377 static void set_multilib_dir (void);
378 static void print_multilib_info (void);
379 static void perror_with_name (const char *);
380 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
381 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1;
382 static void display_help (void);
383 static void add_preprocessor_option (const char *, int);
384 static void add_assembler_option (const char *, int);
385 static void add_linker_option (const char *, int);
386 static void process_command (int, const char **);
387 static int execute (void);
388 static void alloc_args (void);
389 static void clear_args (void);
390 static void fatal_error (int);
391 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
392 static void init_gcc_specs (struct obstack *, const char *, const char *,
395 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
396 static const char *convert_filename (const char *, int, int);
399 static const char *getenv_spec_function (int, const char **);
400 static const char *if_exists_spec_function (int, const char **);
401 static const char *if_exists_else_spec_function (int, const char **);
402 static const char *replace_outfile_spec_function (int, const char **);
403 static const char *version_compare_spec_function (int, const char **);
404 static const char *include_spec_function (int, const char **);
405 static const char *print_asm_header_spec_function (int, const char **);
406 static const char *compare_debug_dump_opt_spec_function (int, const char **);
407 static const char *compare_debug_self_opt_spec_function (int, const char **);
408 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
410 /* The Specs Language
412 Specs are strings containing lines, each of which (if not blank)
413 is made up of a program name, and arguments separated by spaces.
414 The program name must be exact and start from root, since no path
415 is searched and it is unreliable to depend on the current working directory.
416 Redirection of input or output is not supported; the subprograms must
417 accept filenames saying what files to read and write.
419 In addition, the specs can contain %-sequences to substitute variable text
420 or for conditional text. Here is a table of all defined %-sequences.
421 Note that spaces are not generated automatically around the results of
422 expanding these sequences; therefore, you can concatenate them together
423 or with constant text in a single argument.
425 %% substitute one % into the program name or argument.
426 %i substitute the name of the input file being processed.
427 %b substitute the basename of the input file being processed.
428 This is the substring up to (and not including) the last period
429 and not including the directory unless -save-temps was specified
430 to put temporaries in a different location.
431 %B same as %b, but include the file suffix (text after the last period).
433 substitute a file name that has suffix SUFFIX and is chosen
434 once per compilation, and mark the argument a la %d. To reduce
435 exposure to denial-of-service attacks, the file name is now
436 chosen in a way that is hard to predict even when previously
437 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
438 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
439 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
440 had been pre-processed. Previously, %g was simply substituted
441 with a file name chosen once per compilation, without regard
442 to any appended suffix (which was therefore treated just like
443 ordinary text), making such attacks more likely to succeed.
445 like %g, but if -pipe is in effect, expands simply to "-".
447 like %g, but if -pipe is in effect, expands to nothing. (We have both
448 %| and %m to accommodate differences between system assemblers; see
449 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
451 like %g, but generates a new temporary file name even if %uSUFFIX
454 substitutes the last file name generated with %uSUFFIX, generating a
455 new one if there is no such last file name. In the absence of any
456 %uSUFFIX, this is just like %gSUFFIX, except they don't share
457 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
458 would involve the generation of two distinct file names, one
459 for each `%g.s' and another for each `%U.s'. Previously, %U was
460 simply substituted with a file name chosen for the previous %u,
461 without regard to any appended suffix.
463 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
464 writable, and if save-temps is off; otherwise, substitute the name
465 of a temporary file, just like %u. This temporary file is not
466 meant for communication between processes, but rather as a junk
469 substitutes .SUFFIX for the suffixes of a matched switch's args when
470 it is subsequently output with %*. SUFFIX is terminated by the next
472 %d marks the argument containing or following the %d as a
473 temporary file name, so that that file will be deleted if GCC exits
474 successfully. Unlike %g, this contributes no text to the argument.
475 %w marks the argument containing or following the %w as the
476 "output file" of this compilation. This puts the argument
477 into the sequence of arguments that %o will substitute later.
478 %V indicates that this compilation produces no "output file".
480 like %{...} but mark last argument supplied within
481 as a file to be deleted on failure.
482 %o substitutes the names of all the output files, with spaces
483 automatically placed around them. You should write spaces
484 around the %o as well or the results are undefined.
485 %o is for use in the specs for running the linker.
486 Input files whose names have no recognized suffix are not compiled
487 at all, but they are included among the output files, so they will
489 %O substitutes the suffix for object files. Note that this is
490 handled specially when it immediately follows %g, %u, or %U
491 (with or without a suffix argument) because of the need for
492 those to form complete file names. The handling is such that
493 %O is treated exactly as if it had already been substituted,
494 except that %g, %u, and %U do not currently support additional
495 SUFFIX characters following %O as they would following, for
497 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
498 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
499 and -B options) and -imultilib as necessary.
500 %s current argument is the name of a library or startup file of some sort.
501 Search for that file in a standard list of directories
502 and substitute the full name found.
503 %eSTR Print STR as an error message. STR is terminated by a newline.
504 Use this when inconsistent options are detected.
505 %nSTR Print STR as a notice. STR is terminated by a newline.
506 %x{OPTION} Accumulate an option for %X.
507 %X Output the accumulated linker options specified by compilations.
508 %Y Output the accumulated assembler options specified by compilations.
509 %Z Output the accumulated preprocessor options specified by compilations.
510 %a process ASM_SPEC as a spec.
511 This allows config.h to specify part of the spec for running as.
512 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
513 used here. This can be used to run a post-processor after the
514 assembler has done its job.
515 %D Dump out a -L option for each directory in startfile_prefixes.
516 If multilib_dir is set, extra entries are generated with it affixed.
517 %l process LINK_SPEC as a spec.
518 %L process LIB_SPEC as a spec.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
530 %<S remove all occurrences of -S from the command line.
531 Note - this command is position dependent. % commands in the
532 spec string before this one will see -S, % commands in the
533 spec string after this one will not.
534 %<S* remove all occurrences of all switches beginning with -S from the
537 Call the named function FUNCTION, passing it ARGS. ARGS is
538 first processed as a nested spec string, then split into an
539 argument vector in the usual fashion. The function returns
540 a string which is processed as if it had appeared literally
541 as part of the current spec.
542 %{S} substitutes the -S switch, if that switch was given to GCC.
543 If that switch was not specified, this substitutes nothing.
544 Here S is a metasyntactic variable.
545 %{S*} substitutes all the switches specified to GCC whose names start
546 with -S. This is used for -o, -I, etc; switches that take
547 arguments. GCC considers `-o foo' as being one switch whose
548 name starts with `o'. %{o*} would substitute this text,
549 including the space; thus, two arguments would be generated.
550 %{S*&T*} likewise, but preserve order of S and T options (the order
551 of S and T in the spec is not significant). Can be any number
552 of ampersand-separated variables; for each the wild card is
553 optional. Useful for CPP as %{D*&U*&A*}.
555 %{S:X} substitutes X, if the -S switch was given to GCC.
556 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
557 %{S*:X} substitutes X if one or more switches whose names start
558 with -S was given to GCC. Normally X is substituted only
559 once, no matter how many such switches appeared. However,
560 if %* appears somewhere in X, then X will be substituted
561 once for each matching switch, with the %* replaced by the
562 part of that switch that matched the '*'.
563 %{.S:X} substitutes X, if processing a file with suffix S.
564 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
565 %{,S:X} substitutes X, if processing a file which will use spec S.
566 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
568 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
569 combined with '!', '.', ',', and '*' as above binding stronger
571 If %* appears in X, all of the alternatives must be starred, and
572 only the first matching alternative is substituted.
573 %{S:X; if S was given to GCC, substitutes X;
574 T:Y; else if T was given to GCC, substitutes Y;
575 :D} else substitutes D. There can be as many clauses as you need.
576 This may be combined with '.', '!', ',', '|', and '*' as above.
578 %(Spec) processes a specification defined in a specs file as *Spec:
579 %[Spec] as above, but put __ around -D arguments
581 The conditional text X in a %{S:X} or similar construct may contain
582 other nested % constructs or spaces, or even newlines. They are
583 processed as usual, as described above. Trailing white space in X is
584 ignored. White space may also appear anywhere on the left side of the
585 colon in these constructs, except between . or * and the corresponding
588 The -O, -f, -m, and -W switches are handled specifically in these
589 constructs. If another value of -O or the negated form of a -f, -m, or
590 -W switch is found later in the command line, the earlier switch
591 value is ignored, except with {S*} where S is just one letter; this
592 passes all matching options.
594 The character | at the beginning of the predicate text is used to indicate
595 that a command should be piped to the following command, but only if -pipe
598 Note that it is built into GCC which switches take arguments and which
599 do not. You might think it would be useful to generalize this to
600 allow each compiler's spec to say which switches take arguments. But
601 this cannot be done in a consistent fashion. GCC cannot even decide
602 which input files have been specified without knowing which switches
603 take arguments, and it must know which input files to compile in order
604 to tell which compilers to run.
606 GCC also knows implicitly that arguments starting in `-l' are to be
607 treated as compiler output files, and passed to the linker in their
608 proper position among the other output files. */
610 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
612 /* config.h can define ASM_SPEC to provide extra args to the assembler
613 or extra switch-translations. */
618 /* config.h can define ASM_FINAL_SPEC to run a post processor after
619 the assembler has run. */
620 #ifndef ASM_FINAL_SPEC
621 #define ASM_FINAL_SPEC ""
624 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
625 or extra switch-translations. */
630 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
631 or extra switch-translations. */
636 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
637 or extra switch-translations. */
639 #define CC1PLUS_SPEC ""
642 /* config.h can define LINK_SPEC to provide extra args to the linker
643 or extra switch-translations. */
648 /* config.h can define LIB_SPEC to override the default libraries. */
650 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
655 /* XXX: valid only for GNU ld */
656 /* XXX: should exactly match hooks provided by libmudflap.a */
657 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
658 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
659 --wrap=mmap --wrap=munmap --wrap=alloca\
660 } %{fmudflapth: --wrap=pthread_create\
661 }} %{fmudflap|fmudflapth: --wrap=main}"
664 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
667 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
670 #if defined(REAL_LIBGCC_SPEC)
671 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
672 #elif defined(LINK_LIBGCC_SPECIAL_1)
673 /* Have gcc do the search for libgcc.a. */
674 #define LIBGCC_SPEC "libgcc.a%s"
676 #define LIBGCC_SPEC "-lgcc"
680 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
681 #ifndef STARTFILE_SPEC
682 #define STARTFILE_SPEC \
683 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
686 /* config.h can define SWITCHES_NEED_SPACES to control which options
687 require spaces between the option and the argument.
689 We define SWITCHES_NEED_SPACES to include "o" by default. This
690 causes "-ofoo.o" to be split into "-o foo.o" during the initial
691 processing of the command-line, before being seen by the specs
692 machinery. This makes sure we record "foo.o" as the temporary file
693 to be deleted in the case of error, rather than "-ofoo.o". */
694 #ifndef SWITCHES_NEED_SPACES
695 #define SWITCHES_NEED_SPACES "o"
698 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
700 #define ENDFILE_SPEC ""
704 #define LINKER_NAME "collect2"
707 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
708 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
713 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
715 #ifndef ASM_DEBUG_SPEC
716 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
717 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
718 # define ASM_DEBUG_SPEC \
719 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
720 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
721 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
723 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
724 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
726 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
727 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
731 #ifndef ASM_DEBUG_SPEC
732 # define ASM_DEBUG_SPEC ""
735 /* Here is the spec for running the linker, after compiling all files. */
737 /* This is overridable by the target in case they need to specify the
738 -lgcc and -lc order specially, yet not require them to override all
739 of LINK_COMMAND_SPEC. */
740 #ifndef LINK_GCC_C_SEQUENCE_SPEC
741 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
744 #ifndef LINK_SSP_SPEC
745 #ifdef TARGET_LIBC_PROVIDES_SSP
746 #define LINK_SSP_SPEC "%{fstack-protector:}"
748 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
752 #ifndef LINK_PIE_SPEC
754 #define LINK_PIE_SPEC "%{pie:-pie} "
756 #define LINK_PIE_SPEC "%{pie:} "
760 #ifndef LINK_BUILDID_SPEC
761 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
762 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
767 /* -u* was put back because both BSD and SysV seem to support it. */
768 /* %{static:} simply prevents an error message if the target machine
769 doesn't handle -static. */
770 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
771 scripts which exist in user specified directories, or in standard
773 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
774 to understand them. In practice, this means it had better be collect2. */
775 #ifndef LINK_COMMAND_SPEC
776 #define LINK_COMMAND_SPEC "\
777 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
779 %{fuse-linker-plugin: \
780 -plugin %(linker_plugin_file) \
781 -plugin-opt=%(lto_wrapper) \
782 -plugin-opt=%(lto_gcc) \
783 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
784 %{static:-plugin-opt=-pass-through=-lc} \
785 %{O*:-plugin-opt=-O%*} \
786 %{w:-plugin-opt=-w} \
787 %{f*:-plugin-opt=-f%*} \
789 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
790 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
791 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
793 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
794 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
795 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
796 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
799 #ifndef LINK_LIBGCC_SPEC
800 /* Generate -L options for startfile prefix list. */
801 # define LINK_LIBGCC_SPEC "%D"
804 #ifndef STARTFILE_PREFIX_SPEC
805 # define STARTFILE_PREFIX_SPEC ""
809 # define SYSROOT_SPEC "--sysroot=%R"
812 #ifndef SYSROOT_SUFFIX_SPEC
813 # define SYSROOT_SUFFIX_SPEC ""
816 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
817 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
820 static const char *asm_debug;
821 static const char *cpp_spec = CPP_SPEC;
822 static const char *cc1_spec = CC1_SPEC;
823 static const char *cc1plus_spec = CC1PLUS_SPEC;
824 static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
825 static const char *link_ssp_spec = LINK_SSP_SPEC;
826 static const char *asm_spec = ASM_SPEC;
827 static const char *asm_final_spec = ASM_FINAL_SPEC;
828 static const char *link_spec = LINK_SPEC;
829 static const char *lib_spec = LIB_SPEC;
830 static const char *mfwrap_spec = MFWRAP_SPEC;
831 static const char *mflib_spec = MFLIB_SPEC;
832 static const char *link_gomp_spec = "";
833 static const char *libgcc_spec = LIBGCC_SPEC;
834 static const char *endfile_spec = ENDFILE_SPEC;
835 static const char *startfile_spec = STARTFILE_SPEC;
836 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
837 static const char *linker_name_spec = LINKER_NAME;
838 static const char *linker_plugin_file_spec = "";
839 static const char *lto_wrapper_spec = "";
840 static const char *lto_gcc_spec = "";
841 static const char *lto_libgcc_spec = "";
842 static const char *link_command_spec = LINK_COMMAND_SPEC;
843 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
844 static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
845 static const char *sysroot_spec = SYSROOT_SPEC;
846 static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
847 static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
849 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
850 There should be no need to override these in target dependent files,
851 but we need to copy them to the specs file so that newer versions
852 of the GCC driver can correctly drive older tool chains with the
853 appropriate -B options. */
855 /* When cpplib handles traditional preprocessing, get rid of this, and
856 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
857 that we default the front end language better. */
858 static const char *trad_capable_cpp =
859 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
861 /* We don't wrap .d files in %W{} since a missing .d file, and
862 therefore no dependency entry, confuses make into thinking a .o
863 file that happens to exist is up-to-date. */
864 static const char *cpp_unique_options =
865 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
866 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
867 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
868 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
869 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
870 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
871 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
872 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
873 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
874 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
877 /* This contains cpp options which are common with cc1_options and are passed
878 only when preprocessing only to avoid duplication. We pass the cc1 spec
879 options to the preprocessor so that it the cc1 spec may manipulate
880 options used to set target flags. Those special target flags settings may
881 in turn cause preprocessor symbols to be defined specially. */
882 static const char *cpp_options =
883 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
884 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
885 %{undef} %{save-temps*:-fpch-preprocess}";
887 /* This contains cpp options which are not passed when the preprocessor
888 output will be used by another program. */
889 static const char *cpp_debug_options = "%{d*}";
891 /* NB: This is shared amongst all front-ends, except for Ada. */
892 static const char *cc1_options =
893 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
894 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
895 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
896 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
897 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
898 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
899 %{Qn:-fno-ident} %{--help:--help}\
900 %{--target-help:--target-help}\
901 %{--help=*:--help=%(VALUE)}\
902 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
903 %{fsyntax-only:-o %j} %{-param*}\
904 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
905 %{coverage:-fprofile-arcs -ftest-coverage}";
907 static const char *asm_options =
908 "%{--target-help:%:print-asm-header()} "
910 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
911 to the assembler equivalents. */
912 "%{v} %{w:-W} %{I*} "
914 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
916 static const char *invoke_as =
917 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
919 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
920 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
924 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
925 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
929 /* Some compilers have limits on line lengths, and the multilib_select
930 and/or multilib_matches strings can be very long, so we build them at
932 static struct obstack multilib_obstack;
933 static const char *multilib_select;
934 static const char *multilib_matches;
935 static const char *multilib_defaults;
936 static const char *multilib_exclusions;
938 /* Check whether a particular argument is a default argument. */
940 #ifndef MULTILIB_DEFAULTS
941 #define MULTILIB_DEFAULTS { "" }
944 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
946 #ifndef DRIVER_SELF_SPECS
947 #define DRIVER_SELF_SPECS ""
950 /* Adding -fopenmp should imply pthreads. This is particularly important
951 for targets that use different start files and suchlike. */
952 #ifndef GOMP_SELF_SPECS
953 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
956 static const char *const driver_self_specs[] = {
957 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
958 DRIVER_SELF_SPECS, GOMP_SELF_SPECS
961 #ifndef OPTION_DEFAULT_SPECS
962 #define OPTION_DEFAULT_SPECS { "", "" }
971 static const struct default_spec
972 option_default_specs[] = { OPTION_DEFAULT_SPECS };
976 struct user_specs *next;
977 const char *filename;
980 static struct user_specs *user_specs_head, *user_specs_tail;
982 #ifndef SWITCH_TAKES_ARG
983 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
986 #ifndef WORD_SWITCH_TAKES_ARG
987 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
990 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
991 /* This defines which switches stop a full compilation. */
992 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
993 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
995 #ifndef SWITCH_CURTAILS_COMPILATION
996 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
997 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1001 /* Record the mapping from file suffixes for compilation specs. */
1005 const char *suffix; /* Use this compiler for input files
1006 whose names end in this suffix. */
1008 const char *spec; /* To use this compiler, run this spec. */
1010 const char *cpp_spec; /* If non-NULL, substitute this spec
1011 for `%C', rather than the usual
1013 const int combinable; /* If nonzero, compiler can deal with
1014 multiple source files at once (IMA). */
1015 const int needs_preprocessing; /* If nonzero, source files need to
1016 be run through a preprocessor. */
1019 /* Pointer to a vector of `struct compiler' that gives the spec for
1020 compiling a file, based on its suffix.
1021 A file that does not end in any of these suffixes will be passed
1022 unchanged to the loader and nothing else will be done to it.
1024 An entry containing two 0s is used to terminate the vector.
1026 If multiple entries match a file, the last matching one is used. */
1028 static struct compiler *compilers;
1030 /* Number of entries in `compilers', not counting the null terminator. */
1032 static int n_compilers;
1034 /* The default list of file name suffixes and their compilation specs. */
1036 static const struct compiler default_compilers[] =
1038 /* Add lists of suffixes of known languages here. If those languages
1039 were not present when we built the driver, we will hit these copies
1040 and be given a more meaningful error than "file not used since
1041 linking is not done". */
1042 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1043 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1044 {".mii", "#Objective-C++", 0, 0, 0},
1045 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1046 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1047 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1048 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1049 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1050 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1051 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1052 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1053 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1054 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1055 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1056 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1057 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1058 {".r", "#Ratfor", 0, 0, 0},
1059 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1060 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1061 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1062 /* Next come the entries for C. */
1063 {".c", "@c", 0, 1, 1},
1065 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1066 external preprocessor if -save-temps is given. */
1067 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1069 %{traditional|ftraditional:\
1070 %eGNU C no longer supports -traditional without -E}\
1072 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1073 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1074 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1076 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1077 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1078 %{!fsyntax-only:%(invoke_as)}} \
1080 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1081 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1082 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1083 cc1 %(cpp_unique_options) %(cc1_options)}}\
1084 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1086 "%{!E:%e-E or -x required when input is from standard input}\
1087 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1088 {".h", "@c-header", 0, 0, 0},
1090 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1091 external preprocessor if -save-temps is given. */
1092 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1094 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1095 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1096 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1098 -o %g.s %{!o*:--output-pch=%i.gch}\
1099 %W{o*:--output-pch=%*}%V}\
1100 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1101 cc1 %(cpp_unique_options) %(cc1_options)\
1102 -o %g.s %{!o*:--output-pch=%i.gch}\
1103 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1104 {".i", "@cpp-output", 0, 1, 0},
1106 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1107 {".s", "@assembler", 0, 1, 0},
1109 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1110 {".sx", "@assembler-with-cpp", 0, 1, 0},
1111 {".S", "@assembler-with-cpp", 0, 1, 0},
1112 {"@assembler-with-cpp",
1113 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1114 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1115 %{E|M|MM:%(cpp_debug_options)}\
1116 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1117 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1119 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1120 %{E|M|MM:%(cpp_debug_options)}\
1121 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1122 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1127 /* Mark end of table. */
1131 /* Number of elements in default_compilers, not counting the terminator. */
1133 static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1135 /* A vector of options to give to the linker.
1136 These options are accumulated by %x,
1137 and substituted into the linker command with %X. */
1138 static int n_linker_options;
1139 static char **linker_options;
1141 /* A vector of options to give to the assembler.
1142 These options are accumulated by -Wa,
1143 and substituted into the assembler command with %Y. */
1144 static int n_assembler_options;
1145 static char **assembler_options;
1147 /* A vector of options to give to the preprocessor.
1148 These options are accumulated by -Wp,
1149 and substituted into the preprocessor command with %Z. */
1150 static int n_preprocessor_options;
1151 static char **preprocessor_options;
1153 /* Define how to map long options into short ones. */
1155 /* This structure describes one mapping. */
1158 /* The long option's name. */
1159 const char *const name;
1160 /* The equivalent short option. */
1161 const char *const equivalent;
1162 /* Argument info. A string of flag chars; NULL equals no options.
1163 a => argument required.
1164 o => argument optional.
1165 j => join argument to equivalent, making one word.
1166 * => require other text after NAME as an argument. */
1167 const char *const arg_info;
1170 /* This is the table of mappings. Mappings are tried sequentially
1171 for each option encountered; the first one that matches, wins. */
1173 static const struct option_map option_map[] =
1175 {"--all-warnings", "-Wall", 0},
1176 {"--ansi", "-ansi", 0},
1177 {"--assemble", "-S", 0},
1178 {"--assert", "-A", "a"},
1179 {"--classpath", "-fclasspath=", "aj"},
1180 {"--bootclasspath", "-fbootclasspath=", "aj"},
1181 {"--CLASSPATH", "-fclasspath=", "aj"},
1182 {"--combine", "-combine", 0},
1183 {"--comments", "-C", 0},
1184 {"--comments-in-macros", "-CC", 0},
1185 {"--compile", "-c", 0},
1186 {"--debug", "-g", "oj"},
1187 {"--define-macro", "-D", "aj"},
1188 {"--dependencies", "-M", 0},
1189 {"--dump", "-d", "a"},
1190 {"--dumpbase", "-dumpbase", "a"},
1191 {"--encoding", "-fencoding=", "aj"},
1192 {"--entry", "-e", 0},
1193 {"--extra-warnings", "-W", 0},
1194 {"--extdirs", "-fextdirs=", "aj"},
1195 {"--for-assembler", "-Wa", "a"},
1196 {"--for-linker", "-Xlinker", "a"},
1197 {"--force-link", "-u", "a"},
1198 {"--coverage", "-coverage", 0},
1199 {"--imacros", "-imacros", "a"},
1200 {"--include", "-include", "a"},
1201 {"--include-barrier", "-I-", 0},
1202 {"--include-directory", "-I", "aj"},
1203 {"--include-directory-after", "-idirafter", "a"},
1204 {"--include-prefix", "-iprefix", "a"},
1205 {"--include-with-prefix", "-iwithprefix", "a"},
1206 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1207 {"--include-with-prefix-after", "-iwithprefix", "a"},
1208 {"--language", "-x", "a"},
1209 {"--library-directory", "-L", "a"},
1210 {"--machine", "-m", "aj"},
1211 {"--machine-", "-m", "*j"},
1212 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1213 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1214 {"--no-line-commands", "-P", 0},
1215 {"--no-precompiled-includes", "-noprecomp", 0},
1216 {"--no-standard-includes", "-nostdinc", 0},
1217 {"--no-standard-libraries", "-nostdlib", 0},
1218 {"--no-warnings", "-w", 0},
1219 {"--optimize", "-O", "oj"},
1220 {"--output", "-o", "a"},
1221 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1222 {"--param", "--param", "a"},
1223 {"--pass-exit-codes", "-pass-exit-codes", 0},
1224 {"--pedantic", "-pedantic", 0},
1225 {"--pedantic-errors", "-pedantic-errors", 0},
1226 {"--pie", "-pie", 0},
1227 {"--pipe", "-pipe", 0},
1228 {"--prefix", "-B", "a"},
1229 {"--preprocess", "-E", 0},
1230 {"--print-search-dirs", "-print-search-dirs", 0},
1231 {"--print-file-name", "-print-file-name=", "aj"},
1232 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1233 {"--print-missing-file-dependencies", "-MG", 0},
1234 {"--print-multi-lib", "-print-multi-lib", 0},
1235 {"--print-multi-directory", "-print-multi-directory", 0},
1236 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1237 {"--print-prog-name", "-print-prog-name=", "aj"},
1238 {"--print-sysroot", "-print-sysroot", 0},
1239 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1240 {"--profile", "-p", 0},
1241 {"--profile-blocks", "-a", 0},
1242 {"--quiet", "-q", 0},
1243 {"--resource", "-fcompile-resource=", "aj"},
1244 {"--save-temps", "-save-temps", 0},
1245 {"--shared", "-shared", 0},
1246 {"--silent", "-q", 0},
1247 {"--specs", "-specs=", "aj"},
1248 {"--static", "-static", 0},
1249 {"--std", "-std=", "aj"},
1250 {"--symbolic", "-symbolic", 0},
1251 {"--sysroot", "--sysroot=", "aj"},
1252 {"--time", "-time", 0},
1253 {"--trace-includes", "-H", 0},
1254 {"--traditional", "-traditional", 0},
1255 {"--traditional-cpp", "-traditional-cpp", 0},
1256 {"--trigraphs", "-trigraphs", 0},
1257 {"--undefine-macro", "-U", "aj"},
1258 {"--user-dependencies", "-MM", 0},
1259 {"--verbose", "-v", 0},
1260 {"--warn-", "-W", "*j"},
1261 {"--write-dependencies", "-MD", 0},
1262 {"--write-user-dependencies", "-MMD", 0},
1267 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1268 static const struct {
1269 const char *const option_found;
1270 const char *const replacements;
1271 } target_option_translations[] =
1273 TARGET_OPTION_TRANSLATE_TABLE,
1278 /* Translate the options described by *ARGCP and *ARGVP.
1279 Make a new vector and store it back in *ARGVP,
1280 and store its length in *ARGCP. */
1283 translate_options (int *argcp, const char *const **argvp)
1287 const char *const *argv = *argvp;
1288 int newvsize = (argc + 2) * 2 * sizeof (const char *);
1289 const char **newv = XNEWVAR (const char *, newvsize);
1293 newv[newindex++] = argv[i++];
1297 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1301 target_option_translations[tott_idx].option_found;
1304 if (strcmp (target_option_translations[tott_idx].option_found,
1311 for (sp = target_option_translations[tott_idx].replacements;
1318 newvsize += spaces * sizeof (const char *);
1319 newv = XRESIZEVAR (const char *, newv, newvsize);
1321 sp = target_option_translations[tott_idx].replacements;
1330 newv[newindex++] = np;
1331 while (*np != ' ' && *np)
1342 if (target_option_translations[tott_idx].option_found)
1346 /* Translate -- options. */
1347 if (argv[i][0] == '-' && argv[i][1] == '-')
1350 /* Find a mapping that applies to this option. */
1351 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1353 size_t optlen = strlen (option_map[j].name);
1354 size_t arglen = strlen (argv[i]);
1355 size_t complen = arglen > optlen ? optlen : arglen;
1356 const char *arginfo = option_map[j].arg_info;
1361 if (!strncmp (argv[i], option_map[j].name, complen))
1363 const char *arg = 0;
1365 if (arglen < optlen)
1368 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1369 if (strlen (option_map[k].name) >= arglen
1370 && !strncmp (argv[i], option_map[k].name, arglen))
1372 error ("ambiguous abbreviation %s", argv[i]);
1376 if (k != ARRAY_SIZE (option_map))
1380 if (arglen > optlen)
1382 /* If the option has an argument, accept that. */
1383 if (argv[i][optlen] == '=')
1384 arg = argv[i] + optlen + 1;
1386 /* If this mapping requires extra text at end of name,
1387 accept that as "argument". */
1388 else if (strchr (arginfo, '*') != 0)
1389 arg = argv[i] + optlen;
1391 /* Otherwise, extra text at end means mismatch.
1392 Try other mappings. */
1397 else if (strchr (arginfo, '*') != 0)
1399 error ("incomplete '%s' option", option_map[j].name);
1403 /* Handle arguments. */
1404 if (strchr (arginfo, 'a') != 0)
1410 error ("missing argument to '%s' option",
1411 option_map[j].name);
1418 else if (strchr (arginfo, '*') != 0)
1420 else if (strchr (arginfo, 'o') == 0)
1423 error ("extraneous argument to '%s' option",
1424 option_map[j].name);
1428 /* Store the translation as one argv elt or as two. */
1429 if (arg != 0 && strchr (arginfo, 'j') != 0)
1430 newv[newindex++] = concat (option_map[j].equivalent, arg,
1434 newv[newindex++] = option_map[j].equivalent;
1435 newv[newindex++] = arg;
1438 newv[newindex++] = option_map[j].equivalent;
1446 /* Handle old-fashioned options--just copy them through,
1447 with their arguments. */
1448 else if (argv[i][0] == '-')
1450 const char *p = argv[i] + 1;
1454 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1455 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1456 else if (WORD_SWITCH_TAKES_ARG (p))
1457 nskip += WORD_SWITCH_TAKES_ARG (p);
1458 else if ((c == 'B' || c == 'b' || c == 'x')
1461 else if (! strcmp (p, "Xlinker"))
1463 else if (! strcmp (p, "Xpreprocessor"))
1465 else if (! strcmp (p, "Xassembler"))
1468 /* Watch out for an option at the end of the command line that
1469 is missing arguments, and avoid skipping past the end of the
1471 if (nskip + i > argc)
1476 newv[newindex++] = argv[i++];
1481 /* Ordinary operands, or +e options. */
1482 newv[newindex++] = argv[i++];
1492 skip_whitespace (char *p)
1496 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1497 be considered whitespace. */
1498 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1500 else if (*p == '\n' || *p == ' ' || *p == '\t')
1514 /* Structures to keep track of prefixes to try when looking for files. */
1518 const char *prefix; /* String to prepend to the path. */
1519 struct prefix_list *next; /* Next in linked list. */
1520 int require_machine_suffix; /* Don't use without machine_suffix. */
1521 /* 2 means try both machine_suffix and just_machine_suffix. */
1522 int priority; /* Sort key - priority within list. */
1523 int os_multilib; /* 1 if OS multilib scheme should be used,
1524 0 for GCC multilib scheme. */
1529 struct prefix_list *plist; /* List of prefixes to try */
1530 int max_len; /* Max length of a prefix in PLIST */
1531 const char *name; /* Name of this list (used in config stuff) */
1534 /* List of prefixes to try when looking for executables. */
1536 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1538 /* List of prefixes to try when looking for startup (crt0) files. */
1540 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1542 /* List of prefixes to try when looking for include files. */
1544 static struct path_prefix include_prefixes = { 0, 0, "include" };
1546 /* Suffix to attach to directories searched for commands.
1547 This looks like `MACHINE/VERSION/'. */
1549 static const char *machine_suffix = 0;
1551 /* Suffix to attach to directories searched for commands.
1552 This is just `MACHINE/'. */
1554 static const char *just_machine_suffix = 0;
1556 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1558 static const char *gcc_exec_prefix;
1560 /* Adjusted value of standard_libexec_prefix. */
1562 static const char *gcc_libexec_prefix;
1564 /* Default prefixes to attach to command names. */
1566 #ifndef STANDARD_STARTFILE_PREFIX_1
1567 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1569 #ifndef STANDARD_STARTFILE_PREFIX_2
1570 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1573 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1574 #undef MD_EXEC_PREFIX
1575 #undef MD_STARTFILE_PREFIX
1576 #undef MD_STARTFILE_PREFIX_1
1579 /* If no prefixes defined, use the null string, which will disable them. */
1580 #ifndef MD_EXEC_PREFIX
1581 #define MD_EXEC_PREFIX ""
1583 #ifndef MD_STARTFILE_PREFIX
1584 #define MD_STARTFILE_PREFIX ""
1586 #ifndef MD_STARTFILE_PREFIX_1
1587 #define MD_STARTFILE_PREFIX_1 ""
1590 /* These directories are locations set at configure-time based on the
1591 --prefix option provided to configure. Their initializers are
1592 defined in Makefile.in. These paths are not *directly* used when
1593 gcc_exec_prefix is set because, in that case, we know where the
1594 compiler has been installed, and use paths relative to that
1595 location instead. */
1596 static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1597 static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1598 static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1599 static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1601 /* For native compilers, these are well-known paths containing
1602 components that may be provided by the system. For cross
1603 compilers, these paths are not used. */
1604 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1605 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1606 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1607 static const char *const standard_startfile_prefix_1
1608 = STANDARD_STARTFILE_PREFIX_1;
1609 static const char *const standard_startfile_prefix_2
1610 = STANDARD_STARTFILE_PREFIX_2;
1612 /* A relative path to be used in finding the location of tools
1613 relative to the driver. */
1614 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1616 /* Subdirectory to use for locating libraries. Set by
1617 set_multilib_dir based on the compilation options. */
1619 static const char *multilib_dir;
1621 /* Subdirectory to use for locating libraries in OS conventions. Set by
1622 set_multilib_dir based on the compilation options. */
1624 static const char *multilib_os_dir;
1626 /* Structure to keep track of the specs that have been defined so far.
1627 These are accessed using %(specname) or %[specname] in a compiler
1632 /* The following 2 fields must be first */
1633 /* to allow EXTRA_SPECS to be initialized */
1634 const char *name; /* name of the spec. */
1635 const char *ptr; /* available ptr if no static pointer */
1637 /* The following fields are not initialized */
1638 /* by EXTRA_SPECS */
1639 const char **ptr_spec; /* pointer to the spec itself. */
1640 struct spec_list *next; /* Next spec in linked list. */
1641 int name_len; /* length of the name */
1642 int alloc_p; /* whether string was allocated */
1645 #define INIT_STATIC_SPEC(NAME,PTR) \
1646 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1648 /* List of statically defined specs. */
1649 static struct spec_list static_specs[] =
1651 INIT_STATIC_SPEC ("asm", &asm_spec),
1652 INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1653 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1654 INIT_STATIC_SPEC ("asm_options", &asm_options),
1655 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1656 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1657 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1658 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1659 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1660 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1661 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1662 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1663 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1664 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1665 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1666 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1667 INIT_STATIC_SPEC ("link", &link_spec),
1668 INIT_STATIC_SPEC ("lib", &lib_spec),
1669 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec),
1670 INIT_STATIC_SPEC ("mflib", &mflib_spec),
1671 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1672 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1673 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1674 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1675 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1676 INIT_STATIC_SPEC ("version", &compiler_version),
1677 INIT_STATIC_SPEC ("multilib", &multilib_select),
1678 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1679 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1680 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1681 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1682 INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1683 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1684 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1685 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1686 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1687 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec),
1688 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1689 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1690 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1691 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1692 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1693 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1694 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1695 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1698 #ifdef EXTRA_SPECS /* additional specs needed */
1699 /* Structure to keep track of just the first two args of a spec_list.
1700 That is all that the EXTRA_SPECS macro gives us. */
1703 const char *const name;
1704 const char *const ptr;
1707 static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1708 static struct spec_list *extra_specs = (struct spec_list *) 0;
1711 /* List of dynamically allocates specs that have been defined so far. */
1713 static struct spec_list *specs = (struct spec_list *) 0;
1715 /* List of static spec functions. */
1717 static const struct spec_function static_spec_functions[] =
1719 { "getenv", getenv_spec_function },
1720 { "if-exists", if_exists_spec_function },
1721 { "if-exists-else", if_exists_else_spec_function },
1722 { "replace-outfile", replace_outfile_spec_function },
1723 { "version-compare", version_compare_spec_function },
1724 { "include", include_spec_function },
1725 { "print-asm-header", print_asm_header_spec_function },
1726 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1727 { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1728 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function },
1729 #ifdef EXTRA_SPEC_FUNCTIONS
1730 EXTRA_SPEC_FUNCTIONS
1735 static int processing_spec_function;
1737 /* Add appropriate libgcc specs to OBSTACK, taking into account
1738 various permutations of -shared-libgcc, -shared, and such. */
1740 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1742 #ifndef USE_LD_AS_NEEDED
1743 #define USE_LD_AS_NEEDED 0
1747 init_gcc_specs (struct obstack *obstack, const char *shared_name,
1748 const char *static_name, const char *eh_name)
1752 buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1753 "%{!static:%{!static-libgcc:"
1754 #if USE_LD_AS_NEEDED
1755 "%{!shared-libgcc:",
1756 static_name, " --as-needed ", shared_name, " --no-as-needed"
1759 shared_name, "%{!shared: ", static_name, "}"
1763 "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1764 "%{shared-libgcc:", shared_name, " ", static_name, "}"
1768 "%{shared-libgcc:", shared_name, "}"
1769 "%{!shared-libgcc:", static_name, "}"
1772 "%{shared:", shared_name, "}"
1777 obstack_grow (obstack, buf, strlen (buf));
1780 #endif /* ENABLE_SHARED_LIBGCC */
1782 /* Initialize the specs lookup routines. */
1787 struct spec_list *next = (struct spec_list *) 0;
1788 struct spec_list *sl = (struct spec_list *) 0;
1792 return; /* Already initialized. */
1795 notice ("Using built-in specs.\n");
1798 extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1800 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1802 sl = &extra_specs[i];
1803 sl->name = extra_specs_1[i].name;
1804 sl->ptr = extra_specs_1[i].ptr;
1806 sl->name_len = strlen (sl->name);
1807 sl->ptr_spec = &sl->ptr;
1812 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1814 sl = &static_specs[i];
1819 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1820 /* ??? If neither -shared-libgcc nor --static-libgcc was
1821 seen, then we should be making an educated guess. Some proposed
1822 heuristics for ELF include:
1824 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1825 program will be doing dynamic loading, which will likely
1826 need the shared libgcc.
1828 (2) If "-ldl", then it's also a fair bet that we're doing
1831 (3) For each ET_DYN we're linking against (either through -lfoo
1832 or /some/path/foo.so), check to see whether it or one of
1833 its dependencies depends on a shared libgcc.
1837 If the runtime is fixed to look for program headers instead
1838 of calling __register_frame_info at all, for each object,
1839 use the shared libgcc if any EH symbol referenced.
1841 If crtstuff is fixed to not invoke __register_frame_info
1842 automatically, for each object, use the shared libgcc if
1843 any non-empty unwind section found.
1845 Doing any of this probably requires invoking an external program to
1846 do the actual object file scanning. */
1848 const char *p = libgcc_spec;
1851 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1852 when given the proper command line arguments. */
1855 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1857 init_gcc_specs (&obstack,
1859 #ifdef USE_LIBUNWIND_EXCEPTIONS
1865 #ifdef USE_LIBUNWIND_EXCEPTIONS
1866 # ifdef HAVE_LD_STATIC_DYNAMIC
1867 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1877 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1879 /* Ug. We don't know shared library extensions. Hope that
1880 systems that use this form don't do shared libraries. */
1881 init_gcc_specs (&obstack,
1885 #ifdef USE_LIBUNWIND_EXCEPTIONS
1894 obstack_1grow (&obstack, *p);
1895 in_sep = (*p == ' ');
1900 obstack_1grow (&obstack, '\0');
1901 libgcc_spec = XOBFINISH (&obstack, const char *);
1904 #ifdef USE_AS_TRADITIONAL_FORMAT
1905 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1907 static const char tf[] = "--traditional-format ";
1908 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1909 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1910 asm_spec = XOBFINISH (&obstack, const char *);
1914 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1915 # ifdef LINK_BUILDID_SPEC
1916 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1917 obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
1919 # ifdef LINK_EH_SPEC
1920 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1921 obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
1923 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
1924 link_spec = XOBFINISH (&obstack, const char *);
1930 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1931 removed; If the spec starts with a + then SPEC is added to the end of the
1935 set_spec (const char *name, const char *spec)
1937 struct spec_list *sl;
1938 const char *old_spec;
1939 int name_len = strlen (name);
1942 /* If this is the first call, initialize the statically allocated specs. */
1945 struct spec_list *next = (struct spec_list *) 0;
1946 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1948 sl = &static_specs[i];
1955 /* See if the spec already exists. */
1956 for (sl = specs; sl; sl = sl->next)
1957 if (name_len == sl->name_len && !strcmp (sl->name, name))
1962 /* Not found - make it. */
1963 sl = XNEW (struct spec_list);
1964 sl->name = xstrdup (name);
1965 sl->name_len = name_len;
1966 sl->ptr_spec = &sl->ptr;
1968 *(sl->ptr_spec) = "";
1973 old_spec = *(sl->ptr_spec);
1974 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1975 ? concat (old_spec, spec + 1, NULL)
1980 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1983 /* Free the old spec. */
1984 if (old_spec && sl->alloc_p)
1985 free (CONST_CAST(char *, old_spec));
1990 /* Accumulate a command (program name and args), and run it. */
1992 /* Vector of pointers to arguments in the current line of specifications. */
1994 static const char **argbuf;
1996 /* Number of elements allocated in argbuf. */
1998 static int argbuf_length;
2000 /* Number of elements in argbuf currently in use (containing args). */
2002 static int argbuf_index;
2004 /* Position in the argbuf array containing the name of the output file
2005 (the value associated with the "-o" flag). */
2007 static int have_o_argbuf_index = 0;
2009 /* Were the options -c, -S or -E passed. */
2010 static int have_c = 0;
2012 /* Was the option -o passed. */
2013 static int have_o = 0;
2015 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2016 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2019 static struct temp_name {
2020 const char *suffix; /* suffix associated with the code. */
2021 int length; /* strlen (suffix). */
2022 int unique; /* Indicates whether %g or %u/%U was used. */
2023 const char *filename; /* associated filename. */
2024 int filename_length; /* strlen (filename). */
2025 struct temp_name *next;
2028 /* Number of commands executed so far. */
2030 static int execution_count;
2032 /* Number of commands that exited with a signal. */
2034 static int signal_count;
2036 /* Name with which this program was invoked. */
2038 static const char *programname;
2040 /* Allocate the argument vector. */
2046 argbuf = XNEWVEC (const char *, argbuf_length);
2049 /* Clear out the vector of arguments (after a command is executed). */
2057 /* Add one argument to the vector at the end.
2058 This is done when a space is seen or at the end of the line.
2059 If DELETE_ALWAYS is nonzero, the arg is a filename
2060 and the file should be deleted eventually.
2061 If DELETE_FAILURE is nonzero, the arg is a filename
2062 and the file should be deleted if this compilation fails. */
2065 store_arg (const char *arg, int delete_always, int delete_failure)
2067 if (argbuf_index + 1 == argbuf_length)
2068 argbuf = XRESIZEVEC (const char *, argbuf, (argbuf_length *= 2));
2070 argbuf[argbuf_index++] = arg;
2071 argbuf[argbuf_index] = 0;
2073 if (strcmp (arg, "-o") == 0)
2074 have_o_argbuf_index = argbuf_index;
2075 if (delete_always || delete_failure)
2076 record_temp_file (arg, delete_always, delete_failure);
2079 /* Load specs from a file name named FILENAME, replacing occurrences of
2080 various different types of line-endings, \r\n, \n\r and just \r, with
2084 load_specs (const char *filename)
2088 struct stat statbuf;
2095 notice ("Reading specs from %s\n", filename);
2097 /* Open and stat the file. */
2098 desc = open (filename, O_RDONLY, 0);
2100 pfatal_with_name (filename);
2101 if (stat (filename, &statbuf) < 0)
2102 pfatal_with_name (filename);
2104 /* Read contents of file into BUFFER. */
2105 buffer = XNEWVEC (char, statbuf.st_size + 1);
2106 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2108 pfatal_with_name (filename);
2109 buffer[readlen] = 0;
2112 specs = XNEWVEC (char, readlen + 1);
2114 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2120 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2122 else if (*(buffer_p + 1) == '\n') /* \r\n */
2136 /* Read compilation specs from a file named FILENAME,
2137 replacing the default ones.
2139 A suffix which starts with `*' is a definition for
2140 one of the machine-specific sub-specs. The "suffix" should be
2141 *asm, *cc1, *cpp, *link, *startfile, etc.
2142 The corresponding spec is stored in asm_spec, etc.,
2143 rather than in the `compilers' vector.
2145 Anything invalid in the file is a fatal error. */
2148 read_specs (const char *filename, int main_p)
2153 buffer = load_specs (filename);
2155 /* Scan BUFFER for specs, putting them in the vector. */
2161 char *in, *out, *p1, *p2, *p3;
2163 /* Advance P in BUFFER to the next nonblank nocomment line. */
2164 p = skip_whitespace (p);
2168 /* Is this a special command that starts with '%'? */
2169 /* Don't allow this for the main specs file, since it would
2170 encourage people to overwrite it. */
2171 if (*p == '%' && !main_p)
2174 while (*p && *p != '\n')
2180 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
2181 && (p1[sizeof "%include" - 1] == ' '
2182 || p1[sizeof "%include" - 1] == '\t'))
2186 p1 += sizeof ("%include");
2187 while (*p1 == ' ' || *p1 == '\t')
2190 if (*p1++ != '<' || p[-2] != '>')
2191 fatal ("specs %%include syntax malformed after %ld characters",
2192 (long) (p1 - buffer + 1));
2195 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2196 read_specs (new_filename ? new_filename : p1, FALSE);
2199 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
2200 && (p1[sizeof "%include_noerr" - 1] == ' '
2201 || p1[sizeof "%include_noerr" - 1] == '\t'))
2205 p1 += sizeof "%include_noerr";
2206 while (*p1 == ' ' || *p1 == '\t')
2209 if (*p1++ != '<' || p[-2] != '>')
2210 fatal ("specs %%include syntax malformed after %ld characters",
2211 (long) (p1 - buffer + 1));
2214 new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true);
2216 read_specs (new_filename, FALSE);
2217 else if (verbose_flag)
2218 notice ("could not find specs file %s\n", p1);
2221 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
2222 && (p1[sizeof "%rename" - 1] == ' '
2223 || p1[sizeof "%rename" - 1] == '\t'))
2226 struct spec_list *sl;
2227 struct spec_list *newsl;
2229 /* Get original name. */
2230 p1 += sizeof "%rename";
2231 while (*p1 == ' ' || *p1 == '\t')
2234 if (! ISALPHA ((unsigned char) *p1))
2235 fatal ("specs %%rename syntax malformed after %ld characters",
2236 (long) (p1 - buffer));
2239 while (*p2 && !ISSPACE ((unsigned char) *p2))
2242 if (*p2 != ' ' && *p2 != '\t')
2243 fatal ("specs %%rename syntax malformed after %ld characters",
2244 (long) (p2 - buffer));
2248 while (*p2 == ' ' || *p2 == '\t')
2251 if (! ISALPHA ((unsigned char) *p2))
2252 fatal ("specs %%rename syntax malformed after %ld characters",
2253 (long) (p2 - buffer));
2255 /* Get new spec name. */
2257 while (*p3 && !ISSPACE ((unsigned char) *p3))
2261 fatal ("specs %%rename syntax malformed after %ld characters",
2262 (long) (p3 - buffer));
2265 for (sl = specs; sl; sl = sl->next)
2266 if (name_len == sl->name_len && !strcmp (sl->name, p1))
2270 fatal ("specs %s spec was not found to be renamed", p1);
2272 if (strcmp (p1, p2) == 0)
2275 for (newsl = specs; newsl; newsl = newsl->next)
2276 if (strcmp (newsl->name, p2) == 0)
2277 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2282 notice ("rename spec %s to %s\n", p1, p2);
2284 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
2288 set_spec (p2, *(sl->ptr_spec));
2290 free (CONST_CAST (char *, *(sl->ptr_spec)));
2292 *(sl->ptr_spec) = "";
2297 fatal ("specs unknown %% command after %ld characters",
2298 (long) (p1 - buffer));
2301 /* Find the colon that should end the suffix. */
2303 while (*p1 && *p1 != ':' && *p1 != '\n')
2306 /* The colon shouldn't be missing. */
2308 fatal ("specs file malformed after %ld characters",
2309 (long) (p1 - buffer));
2311 /* Skip back over trailing whitespace. */
2313 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2316 /* Copy the suffix to a string. */
2317 suffix = save_string (p, p2 - p);
2318 /* Find the next line. */
2319 p = skip_whitespace (p1 + 1);
2321 fatal ("specs file malformed after %ld characters",
2322 (long) (p - buffer));
2325 /* Find next blank line or end of string. */
2326 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2329 /* Specs end at the blank line and do not include the newline. */
2330 spec = save_string (p, p1 - p);
2333 /* Delete backslash-newline sequences from the spec. */
2338 if (in[0] == '\\' && in[1] == '\n')
2340 else if (in[0] == '#')
2341 while (*in && *in != '\n')
2349 if (suffix[0] == '*')
2351 if (! strcmp (suffix, "*link_command"))
2352 link_command_spec = spec;
2354 set_spec (suffix + 1, spec);
2358 /* Add this pair to the vector. */
2360 = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2362 compilers[n_compilers].suffix = suffix;
2363 compilers[n_compilers].spec = spec;
2365 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2369 link_command_spec = spec;
2372 if (link_command_spec == 0)
2373 fatal ("spec file has no spec for linking");
2376 /* Record the names of temporary files we tell compilers to write,
2377 and delete them at the end of the run. */
2379 /* This is the common prefix we use to make temp file names.
2380 It is chosen once for each run of this program.
2381 It is substituted into a spec by %g or %j.
2382 Thus, all temp file names contain this prefix.
2383 In practice, all temp file names start with this prefix.
2385 This prefix comes from the envvar TMPDIR if it is defined;
2386 otherwise, from the P_tmpdir macro if that is defined;
2387 otherwise, in /usr/tmp or /tmp;
2388 or finally the current directory if all else fails. */
2390 static const char *temp_filename;
2392 /* Length of the prefix. */
2394 static int temp_filename_length;
2396 /* Define the list of temporary files to delete. */
2401 struct temp_file *next;
2404 /* Queue of files to delete on success or failure of compilation. */
2405 static struct temp_file *always_delete_queue;
2406 /* Queue of files to delete on failure of compilation. */
2407 static struct temp_file *failure_delete_queue;
2409 /* Record FILENAME as a file to be deleted automatically.
2410 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2411 otherwise delete it in any case.
2412 FAIL_DELETE nonzero means delete it if a compilation step fails;
2413 otherwise delete it in any case. */
2416 record_temp_file (const char *filename, int always_delete, int fail_delete)
2418 char *const name = xstrdup (filename);
2422 struct temp_file *temp;
2423 for (temp = always_delete_queue; temp; temp = temp->next)
2424 if (! strcmp (name, temp->name))
2427 temp = XNEW (struct temp_file);
2428 temp->next = always_delete_queue;
2430 always_delete_queue = temp;
2437 struct temp_file *temp;
2438 for (temp = failure_delete_queue; temp; temp = temp->next)
2439 if (! strcmp (name, temp->name))
2442 temp = XNEW (struct temp_file);
2443 temp->next = failure_delete_queue;
2445 failure_delete_queue = temp;
2451 /* Delete all the temporary files whose names we previously recorded. */
2453 #ifndef DELETE_IF_ORDINARY
2454 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2457 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2458 if (unlink (NAME) < 0) \
2460 perror_with_name (NAME); \
2465 delete_if_ordinary (const char *name)
2471 printf ("Delete %s? (y or n) ", name);
2475 while ((c = getchar ()) != '\n' && c != EOF)
2478 if (i == 'y' || i == 'Y')
2480 DELETE_IF_ORDINARY (name, st, verbose_flag);
2484 delete_temp_files (void)
2486 struct temp_file *temp;
2488 for (temp = always_delete_queue; temp; temp = temp->next)
2489 delete_if_ordinary (temp->name);
2490 always_delete_queue = 0;
2493 /* Delete all the files to be deleted on error. */
2496 delete_failure_queue (void)
2498 struct temp_file *temp;
2500 for (temp = failure_delete_queue; temp; temp = temp->next)
2501 delete_if_ordinary (temp->name);
2505 clear_failure_queue (void)
2507 failure_delete_queue = 0;
2510 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2512 If DO_MULTI is true iterate over the paths twice, first with multilib
2513 suffix then without, otherwise iterate over the paths once without
2514 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2515 to avoid visiting the same path twice, but we could do better. For
2516 instance, /usr/lib/../lib is considered different from /usr/lib.
2517 At least EXTRA_SPACE chars past the end of the path passed to
2518 CALLBACK are available for use by the callback.
2519 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2521 Returns the value returned by CALLBACK. */
2524 for_each_path (const struct path_prefix *paths,
2527 void *(*callback) (char *, void *),
2528 void *callback_info)
2530 struct prefix_list *pl;
2531 const char *multi_dir = NULL;
2532 const char *multi_os_dir = NULL;
2533 const char *multi_suffix;
2534 const char *just_multi_suffix;
2537 bool skip_multi_dir = false;
2538 bool skip_multi_os_dir = false;
2540 multi_suffix = machine_suffix;
2541 just_multi_suffix = just_machine_suffix;
2542 if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2544 multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2545 multi_suffix = concat (multi_suffix, multi_dir, NULL);
2546 just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2548 if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2549 multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2553 size_t multi_dir_len = 0;
2554 size_t multi_os_dir_len = 0;
2556 size_t just_suffix_len;
2560 multi_dir_len = strlen (multi_dir);
2562 multi_os_dir_len = strlen (multi_os_dir);
2563 suffix_len = strlen (multi_suffix);
2564 just_suffix_len = strlen (just_multi_suffix);
2568 len = paths->max_len + extra_space + 1;
2569 if (suffix_len > multi_os_dir_len)
2572 len += multi_os_dir_len;
2573 path = XNEWVEC (char, len);
2576 for (pl = paths->plist; pl != 0; pl = pl->next)
2578 len = strlen (pl->prefix);
2579 memcpy (path, pl->prefix, len);
2581 /* Look first in MACHINE/VERSION subdirectory. */
2582 if (!skip_multi_dir)
2584 memcpy (path + len, multi_suffix, suffix_len + 1);
2585 ret = callback (path, callback_info);
2590 /* Some paths are tried with just the machine (ie. target)
2591 subdir. This is used for finding as, ld, etc. */
2593 && pl->require_machine_suffix == 2)
2595 memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2596 ret = callback (path, callback_info);
2601 /* Now try the base path. */
2602 if (!pl->require_machine_suffix
2603 && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2605 const char *this_multi;
2606 size_t this_multi_len;
2608 if (pl->os_multilib)
2610 this_multi = multi_os_dir;
2611 this_multi_len = multi_os_dir_len;
2615 this_multi = multi_dir;
2616 this_multi_len = multi_dir_len;
2620 memcpy (path + len, this_multi, this_multi_len + 1);
2624 ret = callback (path, callback_info);
2632 if (multi_dir == NULL && multi_os_dir == NULL)
2635 /* Run through the paths again, this time without multilibs.
2636 Don't repeat any we have already seen. */
2639 free (CONST_CAST (char *, multi_dir));
2641 free (CONST_CAST (char *, multi_suffix));
2642 multi_suffix = machine_suffix;
2643 free (CONST_CAST (char *, just_multi_suffix));
2644 just_multi_suffix = just_machine_suffix;
2647 skip_multi_dir = true;
2650 free (CONST_CAST (char *, multi_os_dir));
2651 multi_os_dir = NULL;
2654 skip_multi_os_dir = true;
2659 free (CONST_CAST (char *, multi_dir));
2660 free (CONST_CAST (char *, multi_suffix));
2661 free (CONST_CAST (char *, just_multi_suffix));
2664 free (CONST_CAST (char *, multi_os_dir));
2670 /* Callback for build_search_list. Adds path to obstack being built. */
2672 struct add_to_obstack_info {
2679 add_to_obstack (char *path, void *data)
2681 struct add_to_obstack_info *info = (struct add_to_obstack_info *) data;
2683 if (info->check_dir && !is_directory (path, false))
2686 if (!info->first_time)
2687 obstack_1grow (info->ob, PATH_SEPARATOR);
2689 obstack_grow (info->ob, path, strlen (path));
2691 info->first_time = false;
2695 /* Add or change the value of an environment variable, outputting the
2696 change to standard error if in verbose mode. */
2698 xputenv (const char *string)
2701 notice ("%s\n", string);
2702 putenv (CONST_CAST (char *, string));
2705 /* Build a list of search directories from PATHS.
2706 PREFIX is a string to prepend to the list.
2707 If CHECK_DIR_P is true we ensure the directory exists.
2708 If DO_MULTI is true, multilib paths are output first, then
2710 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2711 It is also used by the --print-search-dirs flag. */
2714 build_search_list (const struct path_prefix *paths, const char *prefix,
2715 bool check_dir, bool do_multi)
2717 struct add_to_obstack_info info;
2719 info.ob = &collect_obstack;
2720 info.check_dir = check_dir;
2721 info.first_time = true;
2723 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2724 obstack_1grow (&collect_obstack, '=');
2726 for_each_path (paths, do_multi, 0, add_to_obstack, &info);
2728 obstack_1grow (&collect_obstack, '\0');
2729 return XOBFINISH (&collect_obstack, char *);
2732 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2736 putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
2739 xputenv (build_search_list (paths, env_var, true, do_multi));
2742 /* Check whether NAME can be accessed in MODE. This is like access,
2743 except that it never considers directories to be executable. */
2746 access_check (const char *name, int mode)
2752 if (stat (name, &st) < 0
2753 || S_ISDIR (st.st_mode))
2757 return access (name, mode);
2760 /* Callback for find_a_file. Appends the file name to the directory
2761 path. If the resulting file exists in the right mode, return the
2762 full pathname to the file. */
2764 struct file_at_path_info {
2773 file_at_path (char *path, void *data)
2775 struct file_at_path_info *info = (struct file_at_path_info *) data;
2776 size_t len = strlen (path);
2778 memcpy (path + len, info->name, info->name_len);
2779 len += info->name_len;
2781 /* Some systems have a suffix for executable files.
2782 So try appending that first. */
2783 if (info->suffix_len)
2785 memcpy (path + len, info->suffix, info->suffix_len + 1);
2786 if (access_check (path, info->mode) == 0)
2791 if (access_check (path, info->mode) == 0)
2797 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2798 access to check permissions. If DO_MULTI is true, search multilib
2799 paths then non-multilib paths, otherwise do not search multilib paths.
2800 Return 0 if not found, otherwise return its name, allocated with malloc. */
2803 find_a_file (const struct path_prefix *pprefix, const char *name, int mode,
2806 struct file_at_path_info info;
2808 #ifdef DEFAULT_ASSEMBLER
2809 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2810 return xstrdup (DEFAULT_ASSEMBLER);
2813 #ifdef DEFAULT_LINKER
2814 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2815 return xstrdup (DEFAULT_LINKER);
2818 /* Determine the filename to execute (special case for absolute paths). */
2820 if (IS_ABSOLUTE_PATH (name))
2822 if (access (name, mode) == 0)
2823 return xstrdup (name);
2829 info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "";
2830 info.name_len = strlen (info.name);
2831 info.suffix_len = strlen (info.suffix);
2834 return (char*) for_each_path (pprefix, do_multi,
2835 info.name_len + info.suffix_len,
2836 file_at_path, &info);
2839 /* Ranking of prefixes in the sort list. -B prefixes are put before
2842 enum path_prefix_priority
2844 PREFIX_PRIORITY_B_OPT,
2845 PREFIX_PRIORITY_LAST
2848 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2849 order according to PRIORITY. Within each PRIORITY, new entries are
2852 If WARN is nonzero, we will warn if no file is found
2853 through this prefix. WARN should point to an int
2854 which will be set to 1 if this entry is used.
2856 COMPONENT is the value to be passed to update_path.
2858 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2859 the complete value of machine_suffix.
2860 2 means try both machine_suffix and just_machine_suffix. */
2863 add_prefix (struct path_prefix *pprefix, const char *prefix,
2864 const char *component, /* enum prefix_priority */ int priority,
2865 int require_machine_suffix, int os_multilib)
2867 struct prefix_list *pl, **prev;
2870 for (prev = &pprefix->plist;
2871 (*prev) != NULL && (*prev)->priority <= priority;
2872 prev = &(*prev)->next)
2875 /* Keep track of the longest prefix. */
2877 prefix = update_path (prefix, component);
2878 len = strlen (prefix);
2879 if (len > pprefix->max_len)
2880 pprefix->max_len = len;
2882 pl = XNEW (struct prefix_list);
2883 pl->prefix = prefix;
2884 pl->require_machine_suffix = require_machine_suffix;
2885 pl->priority = priority;
2886 pl->os_multilib = os_multilib;
2888 /* Insert after PREV. */
2893 /* Same as add_prefix, but prepending target_system_root to prefix. */
2894 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2896 add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
2897 const char *component,
2898 /* enum prefix_priority */ int priority,
2899 int require_machine_suffix, int os_multilib)
2901 if (!IS_ABSOLUTE_PATH (prefix))
2902 fatal ("system path '%s' is not absolute", prefix);
2904 if (target_system_root)
2906 if (target_sysroot_suffix)
2907 prefix = concat (target_sysroot_suffix, prefix, NULL);
2908 prefix = concat (target_system_root, prefix, NULL);
2910 /* We have to override this because GCC's notion of sysroot
2911 moves along with GCC. */
2915 add_prefix (pprefix, prefix, component, priority,
2916 require_machine_suffix, os_multilib);
2919 /* Execute the command specified by the arguments on the current line of spec.
2920 When using pipes, this includes several piped-together commands
2921 with `|' between them.
2923 Return 0 if successful, -1 if failed. */
2929 int n_commands; /* # of command. */
2931 struct pex_obj *pex;
2934 const char *prog; /* program name. */
2935 const char **argv; /* vector of args. */
2938 struct command *commands; /* each command buffer with above info. */
2940 gcc_assert (!processing_spec_function);
2944 string = find_a_file (&exec_prefixes, argbuf[0], X_OK, false);
2945 argbuf[0] = (string) ? string : argbuf[0];
2946 insert_wrapper (wrapper_string);
2949 /* Count # of piped commands. */
2950 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2951 if (strcmp (argbuf[i], "|") == 0)
2954 /* Get storage for each command. */
2955 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2957 /* Split argbuf into its separate piped processes,
2958 and record info about each one.
2959 Also search for the programs that are to be run. */
2961 commands[0].prog = argbuf[0]; /* first command. */
2962 commands[0].argv = &argbuf[0];
2964 if (!wrapper_string)
2966 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false);
2967 commands[0].argv[0] = (string) ? string : commands[0].argv[0];
2970 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2971 if (strcmp (argbuf[i], "|") == 0)
2972 { /* each command. */
2973 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2974 fatal ("-pipe not supported");
2976 argbuf[i] = 0; /* termination of command args. */
2977 commands[n_commands].prog = argbuf[i + 1];
2978 commands[n_commands].argv = &argbuf[i + 1];
2979 string = find_a_file (&exec_prefixes, commands[n_commands].prog,
2982 commands[n_commands].argv[0] = string;
2986 argbuf[argbuf_index] = 0;
2988 /* If -v, print what we are about to do, and maybe query. */
2992 /* For help listings, put a blank line between sub-processes. */
2993 if (print_help_list)
2994 fputc ('\n', stderr);
2996 /* Print each piped command as a separate line. */
2997 for (i = 0; i < n_commands; i++)
2999 const char *const *j;
3001 if (verbose_only_flag)
3003 for (j = commands[i].argv; *j; j++)
3006 fprintf (stderr, " \"");
3007 for (p = *j; *p; ++p)
3009 if (*p == '"' || *p == '\\' || *p == '$')
3010 fputc ('\\', stderr);
3013 fputc ('"', stderr);
3017 for (j = commands[i].argv; *j; j++)
3018 fprintf (stderr, " %s", *j);
3020 /* Print a pipe symbol after all but the last command. */
3021 if (i + 1 != n_commands)
3022 fprintf (stderr, " |");
3023 fprintf (stderr, "\n");
3026 if (verbose_only_flag != 0)
3028 /* verbose_only_flag should act as if the spec was
3029 executed, so increment execution_count before
3030 returning. This prevents spurious warnings about
3031 unused linker input files, etc. */
3036 notice ("\nGo ahead? (y or n) ");
3040 while (getchar () != '\n')
3043 if (i != 'y' && i != 'Y')
3048 #ifdef ENABLE_VALGRIND_CHECKING
3049 /* Run the each command through valgrind. To simplify prepending the
3050 path to valgrind and the option "-q" (for quiet operation unless
3051 something triggers), we allocate a separate argv array. */
3053 for (i = 0; i < n_commands; i++)
3059 for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3062 argv = XALLOCAVEC (const char *, argc + 3);
3064 argv[0] = VALGRIND_PATH;
3066 for (j = 2; j < argc + 2; j++)
3067 argv[j] = commands[i].argv[j - 2];
3070 commands[i].argv = argv;
3071 commands[i].prog = argv[0];
3075 /* Run each piped subprocess. */
3077 pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3078 ? PEX_RECORD_TIMES : 0),
3079 programname, temp_filename);
3081 pfatal_with_name (_("pex_init failed"));
3083 for (i = 0; i < n_commands; i++)
3087 const char *string = commands[i].argv[0];
3089 errmsg = pex_run (pex,
3090 ((i + 1 == n_commands ? PEX_LAST : 0)
3091 | (string == commands[i].prog ? PEX_SEARCH : 0)),
3092 string, CONST_CAST (char **, commands[i].argv),
3101 pfatal_with_name (errmsg);
3105 if (string != commands[i].prog)
3106 free (CONST_CAST (char *, string));
3111 /* Wait for all the subprocesses to finish. */
3115 struct pex_time *times = NULL;
3118 statuses = (int *) alloca (n_commands * sizeof (int));
3119 if (!pex_get_status (pex, n_commands, statuses))
3120 pfatal_with_name (_("failed to get exit status"));
3122 if (report_times || report_times_to_file)
3124 times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time));
3125 if (!pex_get_times (pex, n_commands, times))
3126 pfatal_with_name (_("failed to get process times"));
3131 for (i = 0; i < n_commands; ++i)
3133 int status = statuses[i];
3135 if (WIFSIGNALED (status))
3138 /* SIGPIPE is a special case. It happens in -pipe mode
3139 when the compiler dies before the preprocessor is done,
3140 or the assembler dies before the compiler is done.
3141 There's generally been an error already, and this is
3142 just fallout. So don't generate another error unless
3143 we would otherwise have succeeded. */
3144 if (WTERMSIG (status) == SIGPIPE
3145 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
3153 Internal error: %s (program %s)\n\
3154 Please submit a full bug report.\n\
3155 See %s for instructions.",
3156 strsignal (WTERMSIG (status)), commands[i].prog,
3159 else if (WIFEXITED (status)
3160 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3162 if (WEXITSTATUS (status) > greatest_status)
3163 greatest_status = WEXITSTATUS (status);
3167 if (report_times || report_times_to_file)
3169 struct pex_time *pt = ×[i];
3172 ut = ((double) pt->user_seconds
3173 + (double) pt->user_microseconds / 1.0e6);
3174 st = ((double) pt->system_seconds
3175 + (double) pt->system_microseconds / 1.0e6);
3180 notice ("# %s %.2f %.2f\n", commands[i].prog, ut, st);
3182 if (report_times_to_file)
3185 const char *const *j;
3187 fprintf (report_times_to_file, "%g %g", ut, st);
3189 for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3192 for (p = *j; *p; ++p)
3193 if (*p == '"' || *p == '\\' || *p == '$'
3199 fprintf (report_times_to_file, " \"");
3200 for (p = *j; *p; ++p)
3202 if (*p == '"' || *p == '\\' || *p == '$')
3203 fputc ('\\', report_times_to_file);
3204 fputc (*p, report_times_to_file);
3206 fputc ('"', report_times_to_file);
3209 fprintf (report_times_to_file, " %s", *j);
3212 fputc ('\n', report_times_to_file);
3222 /* Find all the switches given to us
3223 and make a vector describing them.
3224 The elements of the vector are strings, one per switch given.
3225 If a switch uses following arguments, then the `part1' field
3226 is the switch itself and the `args' field
3227 is a null-terminated vector containing the following arguments.
3228 Bits in the `live_cond' field are:
3229 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3230 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3231 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3232 The `validated' field is nonzero if any spec has looked at this switch;
3233 if it remains zero at the end of the run, it must be meaningless. */
3235 #define SWITCH_LIVE 0x1
3236 #define SWITCH_FALSE 0x2
3237 #define SWITCH_IGNORE 0x4
3243 unsigned int live_cond;
3244 unsigned char validated;
3245 unsigned char ordering;
3248 static struct switchstr *switches;
3250 static int n_switches;
3252 /* Set to zero if -fcompare-debug is disabled, positive if it's
3253 enabled and we're running the first compilation, negative if it's
3254 enabled and we're running the second compilation. For most of the
3255 time, it's in the range -1..1, but it can be temporarily set to 2
3256 or 3 to indicate that the -fcompare-debug flags didn't come from
3257 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3258 variable, until a synthesized -fcompare-debug flag is added to the
3262 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3263 int compare_debug_second;
3265 /* Set to the flags that should be passed to the second compilation in
3266 a -fcompare-debug compilation. */
3267 const char *compare_debug_opt;
3269 static struct switchstr *switches_debug_check[2];
3271 static int n_switches_debug_check[2];
3273 static char *debug_check_temp_file[2];
3275 /* Language is one of three things:
3277 1) The name of a real programming language.
3278 2) NULL, indicating that no one has figured out
3280 3) '*', indicating that the file should be passed
3285 const char *language;
3286 struct compiler *incompiler;
3291 /* Also a vector of input files specified. */
3293 static struct infile *infiles;
3297 /* True if multiple input files are being compiled to a single
3300 static bool combine_inputs;
3302 /* This counts the number of libraries added by lang_specific_driver, so that
3303 we can tell if there were any user supplied any files or libraries. */
3305 static int added_libraries;
3307 /* And a vector of corresponding output files is made up later. */
3309 const char **outfiles;
3311 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3313 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3314 is true if we should look for an executable suffix. DO_OBJ
3315 is true if we should look for an object suffix. */
3318 convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3319 int do_obj ATTRIBUTE_UNUSED)
3321 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3329 len = strlen (name);
3331 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3332 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3333 if (do_obj && len > 2
3334 && name[len - 2] == '.'
3335 && name[len - 1] == 'o')
3337 obstack_grow (&obstack, name, len - 2);
3338 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3339 name = XOBFINISH (&obstack, const char *);
3343 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3344 /* If there is no filetype, make it the executable suffix (which includes
3345 the "."). But don't get confused if we have just "-o". */
3346 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
3349 for (i = len - 1; i >= 0; i--)
3350 if (IS_DIR_SEPARATOR (name[i]))
3353 for (i++; i < len; i++)
3357 obstack_grow (&obstack, name, len);
3358 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3359 strlen (TARGET_EXECUTABLE_SUFFIX));
3360 name = XOBFINISH (&obstack, const char *);
3367 /* Display the command line switches accepted by gcc. */
3371 printf (_("Usage: %s [options] file...\n"), programname);
3372 fputs (_("Options:\n"), stdout);
3374 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
3375 fputs (_(" --help Display this information\n"), stdout);
3376 fputs (_(" --target-help Display target specific command line options\n"), stdout);
3377 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
3378 fputs (_(" Display specific types of command line options\n"), stdout);
3380 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
3381 fputs (_(" --version Display compiler version information\n"), stdout);
3382 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
3383 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
3384 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
3385 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
3386 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
3387 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
3388 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
3389 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
3391 -print-multi-lib Display the mapping between command line options and\n\
3392 multiple library search directories\n"), stdout);
3393 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout);
3394 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout);
3395 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout);
3396 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
3397 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
3398 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
3399 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout);
3400 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout);
3401 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
3402 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout);
3403 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
3404 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout);
3406 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3407 prefixes to other gcc components\n"), stdout);
3408 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
3409 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
3410 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
3411 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
3413 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3414 and libraries\n"), stdout);
3415 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
3416 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
3417 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
3418 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
3419 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout);
3420 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
3421 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
3422 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
3423 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
3425 -x <language> Specify the language of the following input files\n\
3426 Permissible languages include: c c++ assembler none\n\
3427 'none' means revert to the default behavior of\n\
3428 guessing the language based on the file's extension\n\
3432 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3433 passed on to the various sub-processes invoked by %s. In order to pass\n\
3434 other options on to these processes the -W<letter> options must be used.\n\
3437 /* The rest of the options are displayed by invocations of the various
3442 add_preprocessor_option (const char *option, int len)
3444 n_preprocessor_options++;
3446 if (! preprocessor_options)
3447 preprocessor_options = XNEWVEC (char *, n_preprocessor_options);
3449 preprocessor_options = XRESIZEVEC (char *, preprocessor_options,
3450 n_preprocessor_options);
3452 preprocessor_options [n_preprocessor_options - 1] =
3453 save_string (option, len);
3457 add_assembler_option (const char *option, int len)
3459 n_assembler_options++;
3461 if (! assembler_options)
3462 assembler_options = XNEWVEC (char *, n_assembler_options);
3464 assembler_options = XRESIZEVEC (char *, assembler_options,
3465 n_assembler_options);
3467 assembler_options [n_assembler_options - 1] = save_string (option, len);
3471 add_linker_option (const char *option, int len)
3475 if (! linker_options)
3476 linker_options = XNEWVEC (char *, n_linker_options);
3478 linker_options = XRESIZEVEC (char *, linker_options, n_linker_options);
3480 linker_options [n_linker_options - 1] = save_string (option, len);
3483 /* Create the vector `switches' and its contents.
3484 Store its length in `n_switches'. */
3487 process_command (int argc, const char **argv)
3492 const char *spec_lang = 0;
3493 int last_language_n_infiles;
3494 int lang_n_infiles = 0;
3495 #ifdef MODIFY_TARGET_NAME
3496 int is_modify_target_name;
3499 const char *tooldir_prefix;
3500 char *(*get_relative_prefix) (const char *, const char *,
3501 const char *) = NULL;
3503 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3507 added_libraries = 0;
3509 /* Figure compiler version from version string. */
3511 compiler_version = temp1 = xstrdup (version_string);
3513 for (; *temp1; ++temp1)
3522 /* If there is a -V or -b option (or both), process it now, before
3523 trying to interpret the rest of the command line.
3524 Use heuristic that all configuration names must have at least
3525 one dash '-'. This allows us to pass options starting with -b. */
3526 if (argc > 1 && argv[1][0] == '-'
3527 && (argv[1][1] == 'V'
3528 || (argv[1][1] == 'b'
3529 && (argv[1][2] == '\0'
3530 || NULL != strchr (argv[1] + 2, '-')))))
3532 const char *new_version = DEFAULT_TARGET_VERSION;
3533 const char *new_machine = DEFAULT_TARGET_MACHINE;
3534 const char *progname = argv[0];
3542 while (argc > 1 && argv[1][0] == '-'
3543 && (argv[1][1] == 'V'
3544 || (argv[1][1] == 'b'
3545 && (argv[1][2] == '\0'
3546 || NULL != strchr (argv[1] + 2, '-')))))
3548 char opt = argv[1][1];
3550 if (argv[1][2] != '\0')
3563 fatal ("'-%c' option must have argument", opt);
3570 for (baselen = strlen (progname); baselen > 0; baselen--)
3571 if (IS_DIR_SEPARATOR (progname[baselen-1]))
3573 new_argv0 = XDUPVAR (char, progname, baselen,
3574 baselen + concat_length (new_version, new_machine,
3575 "-gcc-", NULL) + 1);
3576 strcpy (new_argv0 + baselen, new_machine);
3577 strcat (new_argv0, "-gcc-");
3578 strcat (new_argv0, new_version);
3580 new_argv = XDUPVEC (char *, argv, argc + 1);
3581 new_argv[0] = new_argv0;
3583 errmsg = pex_one (PEX_SEARCH, new_argv0, new_argv, progname, NULL,
3584 NULL, &status, &err);
3589 fatal ("couldn't run '%s': %s", new_argv0, errmsg);
3591 fatal ("couldn't run '%s': %s: %s", new_argv0, errmsg,
3597 /* Convert new-style -- options to old-style. */
3598 translate_options (&argc,
3599 CONST_CAST2 (const char *const **, const char ***,
3602 /* Do language-specific adjustment/addition of flags. */
3603 lang_specific_driver (&argc,
3604 CONST_CAST2 (const char *const **, const char ***,
3608 /* Handle any -no-canonical-prefixes flag early, to assign the function
3609 that builds relative prefixes. This function creates default search
3610 paths that are needed later in normal option handling. */
3612 for (i = 1; i < argc; i++)
3614 if (! strcmp (argv[i], "-no-canonical-prefixes"))
3616 get_relative_prefix = make_relative_prefix_ignore_links;
3620 if (! get_relative_prefix)
3621 get_relative_prefix = make_relative_prefix;
3623 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3624 see if we can create it from the pathname specified in argv[0]. */
3626 gcc_libexec_prefix = standard_libexec_prefix;
3628 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3629 if (!gcc_exec_prefix)
3631 gcc_exec_prefix = get_relative_prefix (argv[0],
3632 standard_bindir_prefix,
3633 standard_exec_prefix);
3634 gcc_libexec_prefix = get_relative_prefix (argv[0],
3635 standard_bindir_prefix,
3636 standard_libexec_prefix);
3637 if (gcc_exec_prefix)
3638 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3642 /* make_relative_prefix requires a program name, but
3643 GCC_EXEC_PREFIX is typically a directory name with a trailing
3644 / (which is ignored by make_relative_prefix), so append a
3646 char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
3647 gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
3648 standard_exec_prefix,
3649 standard_libexec_prefix);
3651 /* The path is unrelocated, so fallback to the original setting. */
3652 if (!gcc_libexec_prefix)
3653 gcc_libexec_prefix = standard_libexec_prefix;
3659 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3660 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3661 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3663 if (gcc_exec_prefix)
3665 int len = strlen (gcc_exec_prefix);
3667 if (len > (int) sizeof ("/lib/gcc/") - 1
3668 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3670 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
3671 if (IS_DIR_SEPARATOR (*temp)
3672 && strncmp (temp + 1, "lib", 3) == 0
3673 && IS_DIR_SEPARATOR (temp[4])
3674 && strncmp (temp + 5, "gcc", 3) == 0)
3675 len -= sizeof ("/lib/gcc/") - 1;
3678 set_std_prefix (gcc_exec_prefix, len);
3679 add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
3680 PREFIX_PRIORITY_LAST, 0, 0);
3681 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3682 PREFIX_PRIORITY_LAST, 0, 0);
3685 /* COMPILER_PATH and LIBRARY_PATH have values
3686 that are lists of directory names with colons. */
3688 GET_ENVIRONMENT (temp, "COMPILER_PATH");
3691 const char *startp, *endp;
3692 char *nstore = (char *) alloca (strlen (temp) + 3);
3694 startp = endp = temp;
3697 if (*endp == PATH_SEPARATOR || *endp == 0)
3699 strncpy (nstore, startp, endp - startp);
3701 strcpy (nstore, concat (".", dir_separator_str, NULL));
3702 else if (!IS_DIR_SEPARATOR (endp[-1]))
3704 nstore[endp - startp] = DIR_SEPARATOR;
3705 nstore[endp - startp + 1] = 0;
3708 nstore[endp - startp] = 0;
3709 add_prefix (&exec_prefixes, nstore, 0,
3710 PREFIX_PRIORITY_LAST, 0, 0);
3711 add_prefix (&include_prefixes, nstore, 0,
3712 PREFIX_PRIORITY_LAST, 0, 0);
3715 endp = startp = endp + 1;
3722 GET_ENVIRONMENT (temp, LIBRARY_PATH_ENV);
3723 if (temp && *cross_compile == '0')
3725 const char *startp, *endp;
3726 char *nstore = (char *) alloca (strlen (temp) + 3);
3728 startp = endp = temp;
3731 if (*endp == PATH_SEPARATOR || *endp == 0)
3733 strncpy (nstore, startp, endp - startp);
3735 strcpy (nstore, concat (".", dir_separator_str, NULL));
3736 else if (!IS_DIR_SEPARATOR (endp[-1]))
3738 nstore[endp - startp] = DIR_SEPARATOR;
3739 nstore[endp - startp + 1] = 0;
3742 nstore[endp - startp] = 0;
3743 add_prefix (&startfile_prefixes, nstore, NULL,
3744 PREFIX_PRIORITY_LAST, 0, 1);
3747 endp = startp = endp + 1;
3754 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3755 GET_ENVIRONMENT (temp, "LPATH");
3756 if (temp && *cross_compile == '0')
3758 const char *startp, *endp;
3759 char *nstore = (char *) alloca (strlen (temp) + 3);
3761 startp = endp = temp;
3764 if (*endp == PATH_SEPARATOR || *endp == 0)
3766 strncpy (nstore, startp, endp - startp);
3768 strcpy (nstore, concat (".", dir_separator_str, NULL));
3769 else if (!IS_DIR_SEPARATOR (endp[-1]))
3771 nstore[endp - startp] = DIR_SEPARATOR;
3772 nstore[endp - startp + 1] = 0;
3775 nstore[endp - startp] = 0;
3776 add_prefix (&startfile_prefixes, nstore, NULL,
3777 PREFIX_PRIORITY_LAST, 0, 1);
3780 endp = startp = endp + 1;
3787 /* Scan argv twice. Here, the first time, just count how many switches
3788 there will be in their vector, and how many input files in theirs.
3789 Here we also parse the switches that cc itself uses (e.g. -v). */
3791 for (i = 1; i < argc; i++)
3793 if (! strcmp (argv[i], "-dumpspecs"))
3795 struct spec_list *sl;
3797 for (sl = specs; sl; sl = sl->next)
3798 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3799 if (link_command_spec)
3800 printf ("*link_command:\n%s\n\n", link_command_spec);
3803 else if (! strcmp (argv[i], "-dumpversion"))
3805 printf ("%s\n", spec_version);
3808 else if (! strcmp (argv[i], "-dumpmachine"))
3810 printf ("%s\n", spec_machine);
3813 else if (strcmp (argv[i], "-fversion") == 0)
3815 /* translate_options () has turned --version into -fversion. */
3818 /* We will be passing a dummy file on to the sub-processes. */
3822 /* CPP driver cannot obtain switch from cc1_options. */
3824 add_preprocessor_option ("--version", strlen ("--version"));
3825 add_assembler_option ("--version", strlen ("--version"));
3826 add_linker_option ("--version", strlen ("--version"));
3828 else if (strcmp (argv[i], "-fhelp") == 0)
3830 /* translate_options () has turned --help into -fhelp. */
3831 print_help_list = 1;
3833 /* We will be passing a dummy file on to the sub-processes. */
3837 /* CPP driver cannot obtain switch from cc1_options. */
3839 add_preprocessor_option ("--help", 6);
3840 add_assembler_option ("--help", 6);
3841 add_linker_option ("--help", 6);
3843 else if (strncmp (argv[i], "-fhelp=", 7) == 0)
3845 /* translate_options () has turned --help into -fhelp. */
3846 print_subprocess_help = 2;
3848 /* We will be passing a dummy file on to the sub-processes. */
3852 else if (strcmp (argv[i], "-ftarget-help") == 0)
3854 /* translate_options() has turned --target-help into -ftarget-help. */
3855 print_subprocess_help = 1;
3857 /* We will be passing a dummy file on to the sub-processes. */
3861 /* CPP driver cannot obtain switch from cc1_options. */
3863 add_preprocessor_option ("--target-help", 13);
3864 add_assembler_option ("--target-help", 13);
3865 add_linker_option ("--target-help", 13);
3867 else if (! strcmp (argv[i], "-pass-exit-codes"))
3869 pass_exit_codes = 1;
3872 else if (! strcmp (argv[i], "-print-search-dirs"))
3873 print_search_dirs = 1;
3874 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3875 print_file_name = "libgcc.a";
3876 else if (! strncmp (argv[i], "-print-file-name=", 17))
3877 print_file_name = argv[i] + 17;
3878 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3879 print_prog_name = argv[i] + 17;
3880 else if (! strcmp (argv[i], "-print-multi-lib"))
3881 print_multi_lib = 1;
3882 else if (! strcmp (argv[i], "-print-multi-directory"))
3883 print_multi_directory = 1;
3884 else if (! strcmp (argv[i], "-print-sysroot"))
3886 else if (! strcmp (argv[i], "-print-multi-os-directory"))
3887 print_multi_os_directory = 1;
3888 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
3889 print_sysroot_headers_suffix = 1;
3890 else if (! strcmp (argv[i], "-fcompare-debug-second"))
3892 compare_debug_second = 1;
3895 else if (! strcmp (argv[i], "-fno-compare-debug"))
3897 argv[i] = "-fcompare-debug=";
3898 goto compare_debug_with_arg;
3900 else if (! strcmp (argv[i], "-fcompare-debug"))
3902 argv[i] = "-fcompare-debug=-gtoggle";
3903 goto compare_debug_with_arg;
3905 #define OPT "-fcompare-debug="
3906 else if (! strncmp (argv[i], OPT, sizeof (OPT) - 1))
3909 compare_debug_with_arg:
3910 opt = argv[i] + sizeof (OPT) - 1;
3916 if (compare_debug < 0)
3917 compare_debug_opt = NULL;
3919 compare_debug_opt = opt;
3922 else if (! strncmp (argv[i], "-Wa,", 4))
3925 /* Pass the rest of this option to the assembler. */
3927 /* Split the argument at commas. */
3929 for (j = 4; argv[i][j]; j++)
3930 if (argv[i][j] == ',')
3932 add_assembler_option (argv[i] + prev, j - prev);
3936 /* Record the part after the last comma. */
3937 add_assembler_option (argv[i] + prev, j - prev);
3939 else if (! strncmp (argv[i], "-Wp,", 4))
3942 /* Pass the rest of this option to the preprocessor. */
3944 /* Split the argument at commas. */
3946 for (j = 4; argv[i][j]; j++)
3947 if (argv[i][j] == ',')
3949 add_preprocessor_option (argv[i] + prev, j - prev);
3953 /* Record the part after the last comma. */
3954 add_preprocessor_option (argv[i] + prev, j - prev);
3956 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3957 /* The +e options to the C++ front-end. */
3959 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3962 /* Split the argument at commas. */
3963 for (j = 3; argv[i][j]; j++)
3964 n_infiles += (argv[i][j] == ',');
3966 else if (strcmp (argv[i], "-Xlinker") == 0)
3969 fatal ("argument to '-Xlinker' is missing");
3974 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
3977 fatal ("argument to '-Xpreprocessor' is missing");
3979 add_preprocessor_option (argv[i+1], strlen (argv[i+1]));
3981 else if (strcmp (argv[i], "-Xassembler") == 0)
3984 fatal ("argument to '-Xassembler' is missing");
3986 add_assembler_option (argv[i+1], strlen (argv[i+1]));
3988 else if (strcmp (argv[i], "-l") == 0)
3991 fatal ("argument to '-l' is missing");
3996 else if (strncmp (argv[i], "-l", 2) == 0)
3998 else if (strcmp (argv[i], "-save-temps") == 0)
4000 save_temps_flag = SAVE_TEMPS_CWD;
4003 else if (strncmp (argv[i], "-save-temps=", 12) == 0)
4006 if (strcmp (argv[i]+12, "cwd") == 0)
4007 save_temps_flag = SAVE_TEMPS_CWD;
4008 else if (strcmp (argv[i]+12, "obj") == 0
4009 || strcmp (argv[i]+12, "object") == 0)
4010 save_temps_flag = SAVE_TEMPS_OBJ;
4012 fatal ("'%s' is an unknown -save-temps option", argv[i]);
4014 else if (strcmp (argv[i], "-no-canonical-prefixes") == 0)
4015 /* Already handled as a special case, so ignored here. */
4017 else if (strcmp (argv[i], "-combine") == 0)
4022 else if (strcmp (argv[i], "-specs") == 0)
4024 struct user_specs *user = XNEW (struct user_specs);
4026 fatal ("argument to '-specs' is missing");
4028 user->next = (struct user_specs *) 0;
4029 user->filename = argv[i];
4030 if (user_specs_tail)
4031 user_specs_tail->next = user;
4033 user_specs_head = user;
4034 user_specs_tail = user;
4036 else if (strncmp (argv[i], "-specs=", 7) == 0)
4038 struct user_specs *user = XNEW (struct user_specs);
4039 if (strlen (argv[i]) == 7)
4040 fatal ("argument to '-specs=' is missing");
4042 user->next = (struct user_specs *) 0;
4043 user->filename = argv[i] + 7;
4044 if (user_specs_tail)
4045 user_specs_tail->next = user;
4047 user_specs_head = user;
4048 user_specs_tail = user;
4050 else if (strcmp (argv[i], "-time") == 0)
4052 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4054 if (report_times_to_file)
4055 fclose (report_times_to_file);
4056 report_times_to_file = fopen (argv[i] + sizeof ("-time=") - 1, "a");
4058 else if (strcmp (argv[i], "-pipe") == 0)
4060 /* -pipe has to go into the switches array as well as
4065 else if (strcmp (argv[i], "-wrapper") == 0)
4068 fatal ("argument to '-wrapper' is missing");
4070 wrapper_string = argv[i];
4074 else if (strcmp (argv[i], "-###") == 0)
4076 /* This is similar to -v except that there is no execution
4077 of the commands and the echoed arguments are quoted. It
4078 is intended for use in shell scripts to capture the
4079 driver-generated command line. */
4080 verbose_only_flag++;
4083 else if (argv[i][0] == '-' && argv[i][1] != 0)
4085 const char *p = &argv[i][1];
4091 if (p[1] && NULL == strchr (argv[i] + 2, '-'))
4096 fatal ("'-%c' must come at the start of the command line", c);
4104 if (p[1] == 0 && i + 1 == argc)
4105 fatal ("argument to '-B' is missing");
4111 len = strlen (value);
4113 /* Catch the case where the user has forgotten to append a
4114 directory separator to the path. Note, they may be using
4115 -B to add an executable name prefix, eg "i386-elf-", in
4116 order to distinguish between multiple installations of
4117 GCC in the same directory. Hence we must check to see
4118 if appending a directory separator actually makes a
4119 valid directory name. */
4120 if (! IS_DIR_SEPARATOR (value [len - 1])
4121 && is_directory (value, false))
4123 char *tmp = XNEWVEC (char, len + 2);
4124 strcpy (tmp, value);
4125 tmp[len] = DIR_SEPARATOR;
4130 add_prefix (&exec_prefixes, value, NULL,
4131 PREFIX_PRIORITY_B_OPT, 0, 0);
4132 add_prefix (&startfile_prefixes, value, NULL,
4133 PREFIX_PRIORITY_B_OPT, 0, 0);
4134 add_prefix (&include_prefixes, value, NULL,
4135 PREFIX_PRIORITY_B_OPT, 0, 0);
4140 case 'v': /* Print our subcommands and print versions. */
4142 /* If they do anything other than exactly `-v', don't set
4143 verbose_flag; rather, continue on to give the error. */
4162 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4167 /* Forward scan, just in case -S, -E or -c is specified
4174 if (argv[j][0] == '-')
4176 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
4182 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
4183 j += skip - (argv[j][2] != 0);
4184 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
4191 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4193 argv[i + 1] = convert_filename (argv[i + 1], ! have_c, 0);
4195 argv[i] = convert_filename (argv[i], ! have_c, 0);
4197 /* Save the output name in case -save-temps=obj was used. */
4198 if ((p[1] == 0) && argv[i + 1])
4199 save_temps_prefix = xstrdup(argv[i + 1]);
4201 save_temps_prefix = xstrdup(argv[i] + 1);
4207 #ifdef MODIFY_TARGET_NAME
4208 is_modify_target_name = 0;
4210 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4211 if (! strcmp (argv[i], modify_target[j].sw))
4213 char *new_name = XNEWVEC (char, strlen (modify_target[j].str)
4214 + strlen (spec_machine));
4217 int made_addition = 0;
4219 is_modify_target_name = 1;
4220 for (p = spec_machine, q = new_name; *p != 0; )
4222 if (modify_target[j].add_del == DELETE
4223 && (! strncmp (q, modify_target[j].str,
4224 strlen (modify_target[j].str))))
4225 p += strlen (modify_target[j].str);
4226 else if (modify_target[j].add_del == ADD
4227 && ! made_addition && *p == '-')
4229 for (r = modify_target[j].str; *r != 0; )
4237 spec_machine = new_name;
4240 if (is_modify_target_name)
4246 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
4247 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
4248 else if (WORD_SWITCH_TAKES_ARG (p))
4249 i += WORD_SWITCH_TAKES_ARG (p);
4259 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4260 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4261 if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL)
4263 save_temps_length = strlen (save_temps_prefix);
4264 temp = strrchr (lbasename (save_temps_prefix), '.');
4267 save_temps_length -= strlen (temp);
4268 save_temps_prefix[save_temps_length] = '\0';
4272 else if (save_temps_prefix != NULL)
4274 free (save_temps_prefix);
4275 save_temps_prefix = NULL;
4278 if (save_temps_flag && use_pipes)
4280 /* -save-temps overrides -pipe, so that temp files are produced */
4281 if (save_temps_flag)
4282 error ("warning: -pipe ignored because -save-temps specified");
4288 const char *gcd = getenv ("GCC_COMPARE_DEBUG");
4290 if (gcd && gcd[0] == '-')
4293 compare_debug_opt = gcd;
4296 else if (gcd && *gcd && strcmp (gcd, "0"))
4299 compare_debug_opt = "-gtoggle";
4303 else if (compare_debug < 0)
4306 gcc_assert (!compare_debug_opt);
4309 /* Set up the search paths. We add directories that we expect to
4310 contain GNU Toolchain components before directories specified by
4311 the machine description so that we will find GNU components (like
4312 the GNU assembler) before those of the host system. */
4314 /* If we don't know where the toolchain has been installed, use the
4315 configured-in locations. */
4316 if (!gcc_exec_prefix)
4319 add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
4320 PREFIX_PRIORITY_LAST, 1, 0);
4321 add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
4322 PREFIX_PRIORITY_LAST, 2, 0);
4323 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
4324 PREFIX_PRIORITY_LAST, 2, 0);
4326 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
4327 PREFIX_PRIORITY_LAST, 1, 0);
4330 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
4331 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
4332 dir_separator_str, NULL);
4334 /* Look for tools relative to the location from which the driver is
4335 running, or, if that is not available, the configured prefix. */
4337 = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
4338 spec_machine, dir_separator_str,
4339 spec_version, dir_separator_str, tooldir_prefix, NULL);
4341 add_prefix (&exec_prefixes,
4342 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
4343 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
4344 add_prefix (&startfile_prefixes,
4345 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
4346 "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
4348 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4349 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4350 then consider it to relocate with the rest of the GCC installation
4351 if GCC_EXEC_PREFIX is set.
4352 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4353 if (target_system_root && gcc_exec_prefix)
4355 char *tmp_prefix = get_relative_prefix (argv[0],
4356 standard_bindir_prefix,
4357 target_system_root);
4358 if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
4360 target_system_root = tmp_prefix;
4361 target_system_root_changed = 1;
4366 /* More prefixes are enabled in main, after we read the specs file
4367 and determine whether this is cross-compilation or not. */
4369 /* Then create the space for the vectors and scan again. */
4371 switches = XNEWVEC (struct switchstr, n_switches + 1);
4372 infiles = XNEWVEC (struct infile, n_infiles + 1);
4375 last_language_n_infiles = -1;
4377 /* This, time, copy the text of each switch and store a pointer
4378 to the copy in the vector of switches.
4379 Store all the infiles in their vector. */
4381 for (i = 1; i < argc; i++)
4383 /* Just skip the switches that were handled by the preceding loop. */
4384 #ifdef MODIFY_TARGET_NAME
4385 is_modify_target_name = 0;
4387 for (j = 0; j < ARRAY_SIZE (modify_target); j++)
4388 if (! strcmp (argv[i], modify_target[j].sw))
4389 is_modify_target_name = 1;
4391 if (is_modify_target_name)
4395 if (! strncmp (argv[i], "-Wa,", 4))
4397 else if (! strncmp (argv[i], "-Wp,", 4))
4399 else if (! strcmp (argv[i], "-no-canonical-prefixes"))
4401 else if (! strcmp (argv[i], "-pass-exit-codes"))
4403 else if (! strcmp (argv[i], "-print-search-dirs"))
4405 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
4407 else if (! strncmp (argv[i], "-print-file-name=", 17))
4409 else if (! strncmp (argv[i], "-print-prog-name=", 17))
4411 else if (! strcmp (argv[i], "-print-multi-lib"))
4413 else if (! strcmp (argv[i], "-print-multi-directory"))
4415 else if (! strcmp (argv[i], "-print-sysroot"))
4417 else if (! strcmp (argv[i], "-print-multi-os-directory"))
4419 else if (! strcmp (argv[i], "-print-sysroot-headers-suffix"))
4421 else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
4423 target_system_root = argv[i] + strlen ("--sysroot=");
4424 target_system_root_changed = 1;
4426 else if (argv[i][0] == '+' && argv[i][1] == 'e')
4428 /* Compensate for the +e options to the C++ front-end;
4429 they're there simply for cfront call-compatibility. We do
4430 some magic in default_compilers to pass them down properly.
4431 Note we deliberately start at the `+' here, to avoid passing
4432 -e0 or -e1 down into the linker. */
4433 switches[n_switches].part1 = &argv[i][0];
4434 switches[n_switches].args = 0;
4435 switches[n_switches].live_cond = 0;
4436 switches[n_switches].validated = 0;
4439 else if (strncmp (argv[i], "-Wl,", 4) == 0)
4442 /* Split the argument at commas. */
4444 for (j = 4; argv[i][j]; j++)
4445 if (argv[i][j] == ',')
4447 infiles[n_infiles].language = "*";
4448 infiles[n_infiles++].name
4449 = save_string (argv[i] + prev, j - prev);
4452 /* Record the part after the last comma. */
4453 infiles[n_infiles].language = "*";
4454 infiles[n_infiles++].name = argv[i] + prev;
4456 else if (strcmp (argv[i], "-Xlinker") == 0)
4458 infiles[n_infiles].language = "*";
4459 infiles[n_infiles++].name = argv[++i];
4461 /* Xassembler and Xpreprocessor were already handled in the first argv
4462 scan, so all we need to do here is ignore them and their argument. */
4463 else if (strcmp (argv[i], "-Xassembler") == 0)
4465 else if (strcmp (argv[i], "-Xpreprocessor") == 0)
4467 else if (strcmp (argv[i], "-l") == 0)
4468 { /* POSIX allows separation of -l and the lib arg;
4469 canonicalize by concatenating -l with its arg */
4470 infiles[n_infiles].language = "*";
4471 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
4473 else if (strncmp (argv[i], "-l", 2) == 0)
4475 infiles[n_infiles].language = "*";
4476 infiles[n_infiles++].name = argv[i];
4478 else if (strcmp (argv[i], "-wrapper") == 0)
4480 else if (strcmp (argv[i], "-specs") == 0)
4482 else if (strncmp (argv[i], "-specs=", 7) == 0)
4484 else if (strcmp (argv[i], "-time") == 0)
4486 else if (strncmp (argv[i], "-time=", sizeof ("-time=") - 1) == 0)
4488 else if (strcmp (argv[i], "-###") == 0)
4490 else if (argv[i][0] == '-' && argv[i][1] != 0)
4492 const char *p = &argv[i][1];
4497 if (p[1] == 0 && i + 1 == argc)
4498 fatal ("argument to '-x' is missing");
4500 spec_lang = argv[++i];
4503 if (! strcmp (spec_lang, "none"))
4504 /* Suppress the warning if -xnone comes after the last input
4505 file, because alternate command interfaces like g++ might
4506 find it useful to place -xnone after each input file. */
4509 last_language_n_infiles = n_infiles;
4512 switches[n_switches].part1 = p;
4513 /* Deal with option arguments in separate argv elements. */
4514 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4515 || WORD_SWITCH_TAKES_ARG (p))
4518 int n_args = WORD_SWITCH_TAKES_ARG (p);
4522 /* Count only the option arguments in separate argv elements. */
4523 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4525 if (i + n_args >= argc)
4526 fatal ("argument to '-%s' is missing", p);
4527 switches[n_switches].args
4528 = XNEWVEC (const char *, n_args + 1);
4530 switches[n_switches].args[j++] = argv[++i];
4531 /* Null-terminate the vector. */
4532 switches[n_switches].args[j] = 0;
4534 else if (strchr (switches_need_spaces, c))
4536 /* On some systems, ld cannot handle some options without
4537 a space. So split the option from its argument. */
4538 char *part1 = XNEWVEC (char, 2);
4542 switches[n_switches].part1 = part1;
4543 switches[n_switches].args = XNEWVEC (const char *, 2);
4544 switches[n_switches].args[0] = xstrdup (p+1);
4545 switches[n_switches].args[1] = 0;
4548 switches[n_switches].args = 0;
4550 switches[n_switches].live_cond = 0;
4551 switches[n_switches].validated = 0;
4552 switches[n_switches].ordering = 0;
4553 /* These are always valid, since gcc.c itself understands the
4554 first four and gfortranspec.c understands -static-libgfortran. */
4555 if (!strcmp (p, "save-temps")
4556 || !strcmp (p, "static-libgcc")
4557 || !strcmp (p, "shared-libgcc")
4558 || !strcmp (p, "pipe")
4559 || !strcmp (p, "static-libgfortran"))
4560 switches[n_switches].validated = 1;
4563 char ch = switches[n_switches].part1[0];
4565 switches[n_switches].validated = 1;
4571 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4572 argv[i] = convert_filename (argv[i], 0, access (argv[i], F_OK));
4575 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
4577 perror_with_name (argv[i]);
4582 infiles[n_infiles].language = spec_lang;
4583 infiles[n_infiles++].name = argv[i];
4588 if (n_infiles == last_language_n_infiles && spec_lang != 0)
4589 error ("warning: '-x %s' after last input file has no effect", spec_lang);
4591 if (compare_debug == 2 || compare_debug == 3)
4593 switches[n_switches].part1 = concat ("fcompare-debug=",
4596 switches[n_switches].args = 0;
4597 switches[n_switches].live_cond = 0;
4598 switches[n_switches].validated = 0;
4599 switches[n_switches].ordering = 0;
4604 /* Ensure we only invoke each subprocess once. */
4605 if (print_subprocess_help || print_help_list || print_version)
4609 /* Create a dummy input file, so that we can pass
4610 the help option on to the various sub-processes. */
4611 infiles[0].language = "c";
4612 infiles[0].name = "help-dummy";
4615 switches[n_switches].part1 = 0;
4616 infiles[n_infiles].name = 0;
4619 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4620 and place that in the environment. */
4623 set_collect_gcc_options (void)
4628 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4630 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4631 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4634 for (i = 0; (int) i < n_switches; i++)
4636 const char *const *args;
4639 obstack_grow (&collect_obstack, " ", 1);
4643 /* Ignore elided switches. */
4644 if ((switches[i].live_cond & SWITCH_IGNORE) != 0)
4647 obstack_grow (&collect_obstack, "'-", 2);
4648 q = switches[i].part1;
4649 while ((p = strchr (q, '\'')))
4651 obstack_grow (&collect_obstack, q, p - q);
4652 obstack_grow (&collect_obstack, "'\\''", 4);
4655 obstack_grow (&collect_obstack, q, strlen (q));
4656 obstack_grow (&collect_obstack, "'", 1);
4658 for (args = switches[i].args; args && *args; args++)
4660 obstack_grow (&collect_obstack, " '", 2);
4662 while ((p = strchr (q, '\'')))
4664 obstack_grow (&collect_obstack, q, p - q);
4665 obstack_grow (&collect_obstack, "'\\''", 4);
4668 obstack_grow (&collect_obstack, q, strlen (q));
4669 obstack_grow (&collect_obstack, "'", 1);
4672 obstack_grow (&collect_obstack, "\0", 1);
4673 xputenv (XOBFINISH (&collect_obstack, char *));
4676 /* Process a spec string, accumulating and running commands. */
4678 /* These variables describe the input file name.
4679 input_file_number is the index on outfiles of this file,
4680 so that the output file name can be stored for later use by %o.
4681 input_basename is the start of the part of the input file
4682 sans all directory names, and basename_length is the number
4683 of characters starting there excluding the suffix .c or whatever. */
4685 static const char *input_filename;
4686 static int input_file_number;
4687 size_t input_filename_length;
4688 static int basename_length;
4689 static int suffixed_basename_length;
4690 static const char *input_basename;
4691 static const char *input_suffix;
4692 #ifndef HOST_LACKS_INODE_NUMBERS
4693 static struct stat input_stat;
4695 static int input_stat_set;
4697 /* The compiler used to process the current input file. */
4698 static struct compiler *input_file_compiler;
4700 /* These are variables used within do_spec and do_spec_1. */
4702 /* Nonzero if an arg has been started and not yet terminated
4703 (with space, tab or newline). */
4704 static int arg_going;
4706 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4707 is a temporary file name. */
4708 static int delete_this_arg;
4710 /* Nonzero means %w has been seen; the next arg to be terminated
4711 is the output file name of this compilation. */
4712 static int this_is_output_file;
4714 /* Nonzero means %s has been seen; the next arg to be terminated
4715 is the name of a library file and we should try the standard
4716 search dirs for it. */
4717 static int this_is_library_file;
4719 /* Nonzero means %T has been seen; the next arg to be terminated
4720 is the name of a linker script and we should try all of the
4721 standard search dirs for it. If it is found insert a --script
4722 command line switch and then substitute the full path in place,
4723 otherwise generate an error message. */
4724 static int this_is_linker_script;
4726 /* Nonzero means that the input of this command is coming from a pipe. */
4727 static int input_from_pipe;
4729 /* Nonnull means substitute this for any suffix when outputting a switches
4731 static const char *suffix_subst;
4733 /* If there is an argument being accumulated, terminate it and store it. */
4736 end_going_arg (void)
4742 obstack_1grow (&obstack, 0);
4743 string = XOBFINISH (&obstack, const char *);
4744 if (this_is_library_file)
4745 string = find_file (string);
4746 if (this_is_linker_script)
4748 char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true);
4750 if (full_script_path == NULL)
4752 error (_("unable to locate default linker script '%s' in the library search paths"), string);
4753 /* Script was not found on search path. */
4756 store_arg ("--script", false, false);
4757 string = full_script_path;
4759 store_arg (string, delete_this_arg, this_is_output_file);
4760 if (this_is_output_file)
4761 outfiles[input_file_number] = string;
4767 /* Parse the WRAPPER string which is a comma separated list of the command line
4768 and insert them into the beginning of argbuf. */
4771 insert_wrapper (const char *wrapper)
4775 char *buf = xstrdup (wrapper);
4784 while ((p = strchr (p, ',')) != NULL);
4786 if (argbuf_index + n >= argbuf_length)
4788 argbuf_length = argbuf_length * 2;
4789 while (argbuf_length < argbuf_index + n)
4791 argbuf = XRESIZEVEC (const char *, argbuf, argbuf_length);
4793 for (i = argbuf_index - 1; i >= 0; i--)
4794 argbuf[i + n] = argbuf[i];
4807 while ((p = strchr (p, ',')) != NULL);
4808 gcc_assert (i == n);
4812 /* Process the spec SPEC and run the commands specified therein.
4813 Returns 0 if the spec is successfully processed; -1 if failed. */
4816 do_spec (const char *spec)
4820 value = do_spec_2 (spec);
4822 /* Force out any unfinished command.
4823 If -pipe, this forces out the last command if it ended in `|'. */
4826 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4829 set_collect_gcc_options ();
4831 if (argbuf_index > 0)
4839 do_spec_2 (const char *spec)
4845 delete_this_arg = 0;
4846 this_is_output_file = 0;
4847 this_is_library_file = 0;
4848 this_is_linker_script = 0;
4849 input_from_pipe = 0;
4850 suffix_subst = NULL;
4852 result = do_spec_1 (spec, 0, NULL);
4860 /* Process the given spec string and add any new options to the end
4861 of the switches/n_switches array. */
4864 do_option_spec (const char *name, const char *spec)
4866 unsigned int i, value_count, value_len;
4867 const char *p, *q, *value;
4868 char *tmp_spec, *tmp_spec_p;
4870 if (configure_default_options[0].name == NULL)
4873 for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
4874 if (strcmp (configure_default_options[i].name, name) == 0)
4876 if (i == ARRAY_SIZE (configure_default_options))
4879 value = configure_default_options[i].value;
4880 value_len = strlen (value);
4882 /* Compute the size of the final spec. */
4885 while ((p = strstr (p, "%(VALUE)")) != NULL)
4891 /* Replace each %(VALUE) by the specified value. */
4892 tmp_spec = (char *) alloca (strlen (spec) + 1
4893 + value_count * (value_len - strlen ("%(VALUE)")));
4894 tmp_spec_p = tmp_spec;
4896 while ((p = strstr (q, "%(VALUE)")) != NULL)
4898 memcpy (tmp_spec_p, q, p - q);
4899 tmp_spec_p = tmp_spec_p + (p - q);
4900 memcpy (tmp_spec_p, value, value_len);
4901 tmp_spec_p += value_len;
4902 q = p + strlen ("%(VALUE)");
4904 strcpy (tmp_spec_p, q);
4906 do_self_spec (tmp_spec);
4909 /* Process the given spec string and add any new options to the end
4910 of the switches/n_switches array. */
4913 do_self_spec (const char *spec)
4916 do_spec_1 (" ", 0, NULL);
4918 if (argbuf_index > 0)
4922 switches = XRESIZEVEC (struct switchstr, switches,
4923 n_switches + argbuf_index + 1);
4925 for (i = 0; i < argbuf_index; i++)
4927 struct switchstr *sw;
4928 const char *p = argbuf[i];
4931 /* Each switch should start with '-'. */
4933 fatal ("switch '%s' does not start with '-'", argbuf[i]);
4938 sw = &switches[n_switches++];
4944 /* Deal with option arguments in separate argv elements. */
4945 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
4946 || WORD_SWITCH_TAKES_ARG (p))
4949 int n_args = WORD_SWITCH_TAKES_ARG (p);
4953 /* Count only the option arguments in separate argv elements. */
4954 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
4956 if (i + n_args >= argbuf_index)
4957 fatal ("argument to '-%s' is missing", p);
4959 = XNEWVEC (const char *, n_args + 1);
4961 sw->args[j++] = argbuf[++i];
4962 /* Null-terminate the vector. */
4965 else if (strchr (switches_need_spaces, c))
4967 /* On some systems, ld cannot handle some options without
4968 a space. So split the option from its argument. */
4969 char *part1 = XNEWVEC (char, 2);
4974 sw->args = XNEWVEC (const char *, 2);
4975 sw->args[0] = xstrdup (p+1);
4982 switches[n_switches].part1 = 0;
4986 /* Callback for processing %D and %I specs. */
4988 struct spec_path_info {
4993 bool separate_options;
4997 spec_path (char *path, void *data)
4999 struct spec_path_info *info = (struct spec_path_info *) data;
5003 if (info->omit_relative && !IS_ABSOLUTE_PATH (path))
5006 if (info->append_len != 0)
5008 len = strlen (path);
5009 memcpy (path + len, info->append, info->append_len + 1);
5012 if (!is_directory (path, true))
5015 do_spec_1 (info->option, 1, NULL);
5016 if (info->separate_options)
5017 do_spec_1 (" ", 0, NULL);
5019 if (info->append_len == 0)
5021 len = strlen (path);
5022 save = path[len - 1];
5023 if (IS_DIR_SEPARATOR (path[len - 1]))
5024 path[len - 1] = '\0';
5027 do_spec_1 (path, 1, NULL);
5028 do_spec_1 (" ", 0, NULL);
5030 /* Must not damage the original path. */
5031 if (info->append_len == 0)
5032 path[len - 1] = save;
5037 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5041 create_at_file (char **argv)
5043 char *temp_file = make_temp_file ("");
5044 char *at_argument = concat ("@", temp_file, NULL);
5045 FILE *f = fopen (temp_file, "w");
5049 fatal ("could not open temporary response file %s",
5052 status = writeargv (argv, f);
5055 fatal ("could not write to temporary response file %s",
5058 status = fclose (f);
5061 fatal ("could not close temporary response file %s",
5064 store_arg (at_argument, 0, 0);
5066 record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5069 /* True if we should compile INFILE. */
5072 compile_input_file_p (struct infile *infile)
5074 if ((!infile->language) || (infile->language[0] != '*'))
5075 if (infile->incompiler == input_file_compiler)
5080 /* Process the sub-spec SPEC as a portion of a larger spec.
5081 This is like processing a whole spec except that we do
5082 not initialize at the beginning and we do not supply a
5083 newline by default at the end.
5084 INSWITCH nonzero means don't process %-sequences in SPEC;
5085 in this case, % is treated as an ordinary character.
5086 This is used while substituting switches.
5087 INSWITCH nonzero also causes SPC not to terminate an argument.
5089 Value is zero unless a line was finished
5090 and the command on that line reported an error. */
5093 do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
5095 const char *p = spec;
5101 /* If substituting a switch, treat all chars like letters.
5102 Otherwise, NL, SPC, TAB and % are special. */
5103 switch (inswitch ? 'a' : c)
5108 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
5110 /* A `|' before the newline means use a pipe here,
5111 but only if -pipe was specified.
5112 Otherwise, execute now and don't pass the `|' as an arg. */
5115 input_from_pipe = 1;
5122 set_collect_gcc_options ();
5124 if (argbuf_index > 0)
5130 /* Reinitialize for a new command, and for a new argument. */
5133 delete_this_arg = 0;
5134 this_is_output_file = 0;
5135 this_is_library_file = 0;
5136 this_is_linker_script = 0;
5137 input_from_pipe = 0;
5144 obstack_1grow (&obstack, c);
5152 /* Reinitialize for a new argument. */
5153 delete_this_arg = 0;
5154 this_is_output_file = 0;
5155 this_is_library_file = 0;
5156 this_is_linker_script = 0;
5163 fatal ("spec '%s' invalid", spec);
5166 if (save_temps_length)
5167 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5169 obstack_grow (&obstack, input_basename, basename_length);
5170 if (compare_debug < 0)
5171 obstack_grow (&obstack, ".gk", 3);
5176 if (save_temps_length)
5177 obstack_grow (&obstack, save_temps_prefix, save_temps_length);
5179 obstack_grow (&obstack, input_basename, suffixed_basename_length);
5180 if (compare_debug < 0)
5181 obstack_grow (&obstack, ".gk", 3);
5186 delete_this_arg = 2;
5189 /* Dump out the directories specified with LIBRARY_PATH,
5190 followed by the absolute directories
5191 that we search for startfiles. */
5194 struct spec_path_info info;
5197 info.append_len = 0;
5198 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5199 /* Used on systems which record the specified -L dirs
5200 and use them to search for dynamic linking.
5201 Relative directories always come from -B,
5202 and it is better not to use them for searching
5203 at run time. In particular, stage1 loses. */
5204 info.omit_relative = true;
5206 info.omit_relative = false;
5208 info.separate_options = false;
5210 for_each_path (&startfile_prefixes, true, 0, spec_path, &info);
5215 /* %efoo means report an error with `foo' as error message
5216 and don't execute any more commands for this file. */
5220 while (*p != 0 && *p != '\n')
5222 buf = (char *) alloca (p - q + 1);
5223 strncpy (buf, q, p - q);
5230 /* %nfoo means report a notice with `foo' on stderr. */
5234 while (*p != 0 && *p != '\n')
5236 buf = (char *) alloca (p - q + 1);
5237 strncpy (buf, q, p - q);
5239 notice ("%s\n", buf);
5249 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5250 defined, and it is not a directory, and it is
5251 writable, use it. Otherwise, treat this like any
5252 other temporary file. */
5254 if ((!save_temps_flag)
5255 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
5256 && (access (HOST_BIT_BUCKET, W_OK) == 0))
5258 obstack_grow (&obstack, HOST_BIT_BUCKET,
5259 strlen (HOST_BIT_BUCKET));
5260 delete_this_arg = 0;
5265 goto create_temp_file;
5269 obstack_1grow (&obstack, '-');
5270 delete_this_arg = 0;
5273 /* consume suffix */
5274 while (*p == '.' || ISALNUM ((unsigned char) *p))
5276 if (p[0] == '%' && p[1] == 'O')
5281 goto create_temp_file;
5285 /* consume suffix */
5286 while (*p == '.' || ISALNUM ((unsigned char) *p))
5288 if (p[0] == '%' && p[1] == 'O')
5293 goto create_temp_file;
5299 struct temp_name *t;
5301 const char *suffix = p;
5302 char *saved_suffix = NULL;
5304 while (*p == '.' || ISALNUM ((unsigned char) *p))
5306 suffix_length = p - suffix;
5307 if (p[0] == '%' && p[1] == 'O')
5310 /* We don't support extra suffix characters after %O. */
5311 if (*p == '.' || ISALNUM ((unsigned char) *p))
5312 fatal ("spec '%s' has invalid '%%0%c'", spec, *p);
5313 if (suffix_length == 0)
5314 suffix = TARGET_OBJECT_SUFFIX;
5318 = XNEWVEC (char, suffix_length
5319 + strlen (TARGET_OBJECT_SUFFIX));
5320 strncpy (saved_suffix, suffix, suffix_length);
5321 strcpy (saved_suffix + suffix_length,
5322 TARGET_OBJECT_SUFFIX);
5324 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
5327 if (compare_debug < 0)
5329 suffix = concat (".gk", suffix, NULL);
5333 /* If -save-temps=obj and -o were specified, use that for the
5335 if (save_temps_length)
5338 temp_filename_length
5339 = save_temps_length + suffix_length + 1;
5340 tmp = (char *) alloca (temp_filename_length);
5341 memcpy (tmp, save_temps_prefix, save_temps_length);
5342 memcpy (tmp + save_temps_length, suffix, suffix_length);
5343 tmp[save_temps_length + suffix_length] = '\0';
5344 temp_filename = save_string (tmp,
5345 temp_filename_length + 1);
5346 obstack_grow (&obstack, temp_filename,
5347 temp_filename_length);
5349 delete_this_arg = 0;
5353 /* If the input_filename has the same suffix specified
5354 for the %g, %u, or %U, and -save-temps is specified,
5355 we could end up using that file as an intermediate
5356 thus clobbering the user's source file (.e.g.,
5357 gcc -save-temps foo.s would clobber foo.s with the
5358 output of cpp0). So check for this condition and
5359 generate a temp file as the intermediate. */
5361 if (save_temps_flag)
5364 temp_filename_length = basename_length + suffix_length + 1;
5365 tmp = (char *) alloca (temp_filename_length);
5366 memcpy (tmp, input_basename, basename_length);
5367 memcpy (tmp + basename_length, suffix, suffix_length);
5368 tmp[basename_length + suffix_length] = '\0';
5369 temp_filename = tmp;
5371 if (strcmp (temp_filename, input_filename) != 0)
5373 #ifndef HOST_LACKS_INODE_NUMBERS
5374 struct stat st_temp;
5376 /* Note, set_input() resets input_stat_set to 0. */
5377 if (input_stat_set == 0)
5379 input_stat_set = stat (input_filename, &input_stat);
5380 if (input_stat_set >= 0)
5384 /* If we have the stat for the input_filename
5385 and we can do the stat for the temp_filename
5386 then the they could still refer to the same
5387 file if st_dev/st_ino's are the same. */
5388 if (input_stat_set != 1
5389 || stat (temp_filename, &st_temp) < 0
5390 || input_stat.st_dev != st_temp.st_dev
5391 || input_stat.st_ino != st_temp.st_ino)
5393 /* Just compare canonical pathnames. */
5394 char* input_realname = lrealpath (input_filename);
5395 char* temp_realname = lrealpath (temp_filename);
5396 bool files_differ = strcmp (input_realname, temp_realname);
5397 free (input_realname);
5398 free (temp_realname);
5402 temp_filename = save_string (temp_filename,
5403 temp_filename_length + 1);
5404 obstack_grow (&obstack, temp_filename,
5405 temp_filename_length);
5407 delete_this_arg = 0;
5413 /* See if we already have an association of %g/%u/%U and
5415 for (t = temp_names; t; t = t->next)
5416 if (t->length == suffix_length
5417 && strncmp (t->suffix, suffix, suffix_length) == 0
5418 && t->unique == (c == 'u' || c == 'U' || c == 'j'))
5421 /* Make a new association if needed. %u and %j
5423 if (t == 0 || c == 'u' || c == 'j')
5427 t = XNEW (struct temp_name);
5428 t->next = temp_names;
5431 t->length = suffix_length;
5434 t->suffix = saved_suffix;
5435 saved_suffix = NULL;
5438 t->suffix = save_string (suffix, suffix_length);
5439 t->unique = (c == 'u' || c == 'U' || c == 'j');
5440 temp_filename = make_temp_file (t->suffix);
5441 temp_filename_length = strlen (temp_filename);
5442 t->filename = temp_filename;
5443 t->filename_length = temp_filename_length;
5447 free (saved_suffix);
5449 obstack_grow (&obstack, t->filename, t->filename_length);
5450 delete_this_arg = 1;
5458 if (at_file_supplied)
5460 /* We are going to expand `%i' to `@FILE', where FILE
5461 is a newly-created temporary filename. The filenames
5462 that would usually be expanded in place of %o will be
5463 written to the temporary file. */
5468 for (i = 0; i < n_infiles; i++)
5469 if (compile_input_file_p (&infiles[i]))
5472 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5474 /* Copy the strings over. */
5475 for (i = 0, j = 0; i < n_infiles; i++)
5476 if (compile_input_file_p (&infiles[i]))
5478 argv[j] = CONST_CAST (char *, infiles[i].name);
5479 infiles[i].compiled = true;
5484 create_at_file (argv);
5487 for (i = 0; (int) i < n_infiles; i++)
5488 if (compile_input_file_p (&infiles[i]))
5490 store_arg (infiles[i].name, 0, 0);
5491 infiles[i].compiled = true;
5496 obstack_grow (&obstack, input_filename, input_filename_length);
5503 struct spec_path_info info;
5507 do_spec_1 ("-imultilib", 1, NULL);
5508 /* Make this a separate argument. */
5509 do_spec_1 (" ", 0, NULL);
5510 do_spec_1 (multilib_dir, 1, NULL);
5511 do_spec_1 (" ", 0, NULL);
5514 if (gcc_exec_prefix)
5516 do_spec_1 ("-iprefix", 1, NULL);
5517 /* Make this a separate argument. */
5518 do_spec_1 (" ", 0, NULL);
5519 do_spec_1 (gcc_exec_prefix, 1, NULL);
5520 do_spec_1 (" ", 0, NULL);
5523 if (target_system_root_changed ||
5524 (target_system_root && target_sysroot_hdrs_suffix))
5526 do_spec_1 ("-isysroot", 1, NULL);
5527 /* Make this a separate argument. */
5528 do_spec_1 (" ", 0, NULL);
5529 do_spec_1 (target_system_root, 1, NULL);
5530 if (target_sysroot_hdrs_suffix)
5531 do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
5532 do_spec_1 (" ", 0, NULL);
5535 info.option = "-isystem";
5536 info.append = "include";
5537 info.append_len = strlen (info.append);
5538 info.omit_relative = false;
5539 info.separate_options = true;
5541 for_each_path (&include_prefixes, false, info.append_len,
5544 info.append = "include-fixed";
5545 if (*sysroot_hdrs_suffix_spec)
5546 info.append = concat (info.append, dir_separator_str,
5547 multilib_dir, NULL);
5548 info.append_len = strlen (info.append);
5549 for_each_path (&include_prefixes, false, info.append_len,
5556 int max = n_infiles;
5557 max += lang_specific_extra_outfiles;
5559 if (HAVE_GNU_LD && at_file_supplied)
5561 /* We are going to expand `%o' to `@FILE', where FILE
5562 is a newly-created temporary filename. The filenames
5563 that would usually be expanded in place of %o will be
5564 written to the temporary file. */
5569 /* Convert OUTFILES into a form suitable for writeargv. */
5571 /* Determine how many are non-NULL. */
5572 for (n_files = 0, i = 0; i < max; i++)
5573 n_files += outfiles[i] != NULL;
5575 argv = (char **) alloca (sizeof (char *) * (n_files + 1));
5577 /* Copy the strings over. */
5578 for (i = 0, j = 0; i < max; i++)
5581 argv[j] = CONST_CAST (char *, outfiles[i]);
5586 create_at_file (argv);
5589 for (i = 0; i < max; i++)
5591 store_arg (outfiles[i], 0, 0);
5596 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
5601 this_is_library_file = 1;
5605 this_is_linker_script = 1;
5609 outfiles[input_file_number] = NULL;
5613 this_is_output_file = 1;
5618 int cur_index = argbuf_index;
5619 /* Handle the {...} following the %W. */
5621 fatal ("spec '%s' has invalid '%%W%c", spec, *p);
5622 p = handle_braces (p + 1);
5626 /* If any args were output, mark the last one for deletion
5628 if (argbuf_index != cur_index)
5629 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
5633 /* %x{OPTION} records OPTION for %X to output. */
5639 /* Skip past the option value and make a copy. */
5641 fatal ("spec '%s' has invalid '%%x%c'", spec, *p);
5644 string = save_string (p1 + 1, p - p1 - 2);
5646 /* See if we already recorded this option. */
5647 for (i = 0; i < n_linker_options; i++)
5648 if (! strcmp (string, linker_options[i]))
5654 /* This option is new; add it. */
5655 add_linker_option (string, strlen (string));
5659 /* Dump out the options accumulated previously using %x. */
5661 for (i = 0; i < n_linker_options; i++)
5663 do_spec_1 (linker_options[i], 1, NULL);
5664 /* Make each accumulated option a separate argument. */
5665 do_spec_1 (" ", 0, NULL);
5669 /* Dump out the options accumulated previously using -Wa,. */
5671 for (i = 0; i < n_assembler_options; i++)
5673 do_spec_1 (assembler_options[i], 1, NULL);
5674 /* Make each accumulated option a separate argument. */
5675 do_spec_1 (" ", 0, NULL);
5679 /* Dump out the options accumulated previously using -Wp,. */
5681 for (i = 0; i < n_preprocessor_options; i++)
5683 do_spec_1 (preprocessor_options[i], 1, NULL);
5684 /* Make each accumulated option a separate argument. */
5685 do_spec_1 (" ", 0, NULL);
5689 /* Here are digits and numbers that just process
5690 a certain constant string as a spec. */
5693 value = do_spec_1 (cc1_spec, 0, NULL);
5699 value = do_spec_1 (cc1plus_spec, 0, NULL);
5705 value = do_spec_1 (asm_spec, 0, NULL);
5711 value = do_spec_1 (asm_final_spec, 0, NULL);
5718 const char *const spec
5719 = (input_file_compiler->cpp_spec
5720 ? input_file_compiler->cpp_spec
5722 value = do_spec_1 (spec, 0, NULL);
5729 value = do_spec_1 (endfile_spec, 0, NULL);
5735 value = do_spec_1 (link_spec, 0, NULL);
5741 value = do_spec_1 (lib_spec, 0, NULL);
5747 value = do_spec_1 (libgcc_spec, 0, NULL);
5753 /* We assume there is a directory
5754 separator at the end of this string. */
5755 if (target_system_root)
5757 obstack_grow (&obstack, target_system_root,
5758 strlen (target_system_root));
5759 if (target_sysroot_suffix)
5760 obstack_grow (&obstack, target_sysroot_suffix,
5761 strlen (target_sysroot_suffix));
5766 value = do_spec_1 (startfile_spec, 0, NULL);
5771 /* Here we define characters other than letters and digits. */
5774 p = handle_braces (p);
5780 p = handle_spec_function (p);
5786 obstack_1grow (&obstack, '%');
5793 while (p[len] && p[len] != ' ' && p[len] != '%')
5795 suffix_subst = save_string (p - 1, len + 1);
5800 /* Henceforth ignore the option(s) matching the pattern
5805 int have_wildcard = 0;
5808 while (p[len] && p[len] != ' ' && p[len] != '\t')
5811 if (p[len-1] == '*')
5814 for (i = 0; i < n_switches; i++)
5815 if (!strncmp (switches[i].part1, p, len - have_wildcard)
5816 && (have_wildcard || switches[i].part1[len] == '\0'))
5818 switches[i].live_cond |= SWITCH_IGNORE;
5819 switches[i].validated = 1;
5827 if (soft_matched_part)
5829 do_spec_1 (soft_matched_part, 1, NULL);
5830 do_spec_1 (" ", 0, NULL);
5833 /* Catch the case where a spec string contains something like
5834 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5835 hand side of the :. */
5836 error ("spec failure: '%%*' has not been initialized by pattern match");
5839 /* Process a string found as the value of a spec given by name.
5840 This feature allows individual machine descriptions
5841 to add and use their own specs.
5842 %[...] modifies -D options the way %P does;
5843 %(...) uses the spec unmodified. */
5845 error ("warning: use of obsolete %%[ operator in specs");
5848 const char *name = p;
5849 struct spec_list *sl;
5852 /* The string after the S/P is the name of a spec that is to be
5854 while (*p && *p != ')' && *p != ']')
5857 /* See if it's in the list. */
5858 for (len = p - name, sl = specs; sl; sl = sl->next)
5859 if (sl->name_len == len && !strncmp (sl->name, name, len))
5861 name = *(sl->ptr_spec);
5863 notice ("Processing spec %c%s%c, which is '%s'\n",
5864 c, sl->name, (c == '(') ? ')' : ']', name);
5873 value = do_spec_1 (name, 0, NULL);
5879 char *x = (char *) alloca (strlen (name) * 2 + 1);
5881 const char *y = name;
5884 /* Copy all of NAME into BUF, but put __ after
5885 every -D and at the end of each arg. */
5888 if (! strncmp (y, "-D", 2))
5899 && (*y == ' ' || *y == '\t' || *y == '='
5900 || *y == '}' || *y == 0))
5913 value = do_spec_1 (buf, 0, NULL);
5919 /* Discard the closing paren or bracket. */
5926 error ("spec failure: unrecognized spec option '%c'", c);
5932 /* Backslash: treat next character as ordinary. */
5937 /* Ordinary character: put it into the current argument. */
5938 obstack_1grow (&obstack, c);
5942 /* End of string. If we are processing a spec function, we need to
5943 end any pending argument. */
5944 if (processing_spec_function)
5950 /* Look up a spec function. */
5952 static const struct spec_function *
5953 lookup_spec_function (const char *name)
5955 const struct spec_function *sf;
5957 for (sf = static_spec_functions; sf->name != NULL; sf++)
5958 if (strcmp (sf->name, name) == 0)
5964 /* Evaluate a spec function. */
5967 eval_spec_function (const char *func, const char *args)
5969 const struct spec_function *sf;
5970 const char *funcval;
5972 /* Saved spec processing context. */
5973 int save_argbuf_index;
5974 int save_argbuf_length;
5975 const char **save_argbuf;
5978 int save_delete_this_arg;
5979 int save_this_is_output_file;
5980 int save_this_is_library_file;
5981 int save_input_from_pipe;
5982 int save_this_is_linker_script;
5983 const char *save_suffix_subst;
5986 sf = lookup_spec_function (func);
5988 fatal ("unknown spec function '%s'", func);
5990 /* Push the spec processing context. */
5991 save_argbuf_index = argbuf_index;
5992 save_argbuf_length = argbuf_length;
5993 save_argbuf = argbuf;
5995 save_arg_going = arg_going;
5996 save_delete_this_arg = delete_this_arg;
5997 save_this_is_output_file = this_is_output_file;
5998 save_this_is_library_file = this_is_library_file;
5999 save_this_is_linker_script = this_is_linker_script;
6000 save_input_from_pipe = input_from_pipe;
6001 save_suffix_subst = suffix_subst;
6003 /* Create a new spec processing context, and build the function
6007 if (do_spec_2 (args) < 0)
6008 fatal ("error in args to spec function '%s'", func);
6010 /* argbuf_index is an index for the next argument to be inserted, and
6011 so contains the count of the args already inserted. */
6013 funcval = (*sf->func) (argbuf_index, argbuf);
6015 /* Pop the spec processing context. */
6016 argbuf_index = save_argbuf_index;
6017 argbuf_length = save_argbuf_length;
6019 argbuf = save_argbuf;
6021 arg_going = save_arg_going;
6022 delete_this_arg = save_delete_this_arg;
6023 this_is_output_file = save_this_is_output_file;
6024 this_is_library_file = save_this_is_library_file;
6025 this_is_linker_script = save_this_is_linker_script;
6026 input_from_pipe = save_input_from_pipe;
6027 suffix_subst = save_suffix_subst;
6032 /* Handle a spec function call of the form:
6036 ARGS is processed as a spec in a separate context and split into an
6037 argument vector in the normal fashion. The function returns a string
6038 containing a spec which we then process in the caller's context, or
6039 NULL if no processing is required. */
6042 handle_spec_function (const char *p)
6045 const char *endp, *funcval;
6048 processing_spec_function++;
6050 /* Get the function name. */
6051 for (endp = p; *endp != '\0'; endp++)
6053 if (*endp == '(') /* ) */
6055 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6056 if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
6057 fatal ("malformed spec function name");
6059 if (*endp != '(') /* ) */
6060 fatal ("no arguments for spec function");
6061 func = save_string (p, endp - p);
6064 /* Get the arguments. */
6065 for (count = 0; *endp != '\0'; endp++)
6074 else if (*endp == '(') /* ) */
6079 fatal ("malformed spec function arguments");
6080 args = save_string (p, endp - p);
6083 /* p now points to just past the end of the spec function expression. */
6085 funcval = eval_spec_function (func, args);
6086 if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
6092 processing_spec_function--;
6097 /* Inline subroutine of handle_braces. Returns true if the current
6098 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6100 input_suffix_matches (const char *atom, const char *end_atom)
6102 return (input_suffix
6103 && !strncmp (input_suffix, atom, end_atom - atom)
6104 && input_suffix[end_atom - atom] == '\0');
6107 /* Subroutine of handle_braces. Returns true if the current
6108 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6110 input_spec_matches (const char *atom, const char *end_atom)
6112 return (input_file_compiler
6113 && input_file_compiler->suffix
6114 && input_file_compiler->suffix[0] != '\0'
6115 && !strncmp (input_file_compiler->suffix + 1, atom,
6117 && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
6120 /* Subroutine of handle_braces. Returns true if a switch
6121 matching the atom bracketed by ATOM and END_ATOM appeared on the
6124 switch_matches (const char *atom, const char *end_atom, int starred)
6127 int len = end_atom - atom;
6128 int plen = starred ? len : -1;
6130 for (i = 0; i < n_switches; i++)
6131 if (!strncmp (switches[i].part1, atom, len)
6132 && (starred || switches[i].part1[len] == '\0')
6133 && check_live_switch (i, plen))
6139 /* Inline subroutine of handle_braces. Mark all of the switches which
6140 match ATOM (extends to END_ATOM; STARRED indicates whether there
6141 was a star after the atom) for later processing. */
6143 mark_matching_switches (const char *atom, const char *end_atom, int starred)
6146 int len = end_atom - atom;
6147 int plen = starred ? len : -1;
6149 for (i = 0; i < n_switches; i++)
6150 if (!strncmp (switches[i].part1, atom, len)
6151 && (starred || switches[i].part1[len] == '\0')
6152 && check_live_switch (i, plen))
6153 switches[i].ordering = 1;
6156 /* Inline subroutine of handle_braces. Process all the currently
6157 marked switches through give_switch, and clear the marks. */
6159 process_marked_switches (void)
6163 for (i = 0; i < n_switches; i++)
6164 if (switches[i].ordering == 1)
6166 switches[i].ordering = 0;
6171 /* Handle a %{ ... } construct. P points just inside the leading {.
6172 Returns a pointer one past the end of the brace block, or 0
6173 if we call do_spec_1 and that returns -1. */
6176 handle_braces (const char *p)
6178 const char *atom, *end_atom;
6179 const char *d_atom = NULL, *d_end_atom = NULL;
6180 const char *orig = p;
6188 bool a_must_be_last = false;
6189 bool ordered_set = false;
6190 bool disjunct_set = false;
6191 bool disj_matched = false;
6192 bool disj_starred = true;
6193 bool n_way_choice = false;
6194 bool n_way_matched = false;
6196 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6203 /* Scan one "atom" (S in the description above of %{}, possibly
6204 with '!', '.', '@', ',', or '*' modifiers). */
6206 a_is_suffix = false;
6207 a_is_starred = false;
6208 a_is_negated = false;
6209 a_is_spectype = false;
6213 p++, a_is_negated = true;
6217 p++, a_is_suffix = true;
6219 p++, a_is_spectype = true;
6222 while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '='
6223 || *p == ',' || *p == '.' || *p == '@')
6228 p++, a_is_starred = 1;
6234 /* Substitute the switch(es) indicated by the current atom. */
6236 if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
6237 || a_is_spectype || atom == end_atom)
6240 mark_matching_switches (atom, end_atom, a_is_starred);
6243 process_marked_switches ();
6247 /* Substitute some text if the current atom appears as a switch
6249 disjunct_set = true;
6253 if (atom == end_atom)
6255 if (!n_way_choice || disj_matched || *p == '|'
6256 || a_is_negated || a_is_suffix || a_is_spectype
6260 /* An empty term may appear as the last choice of an
6261 N-way choice set; it means "otherwise". */
6262 a_must_be_last = true;
6263 disj_matched = !n_way_matched;
6264 disj_starred = false;
6268 if ((a_is_suffix || a_is_spectype) && a_is_starred)
6272 disj_starred = false;
6274 /* Don't bother testing this atom if we already have a
6276 if (!disj_matched && !n_way_matched)
6279 a_matched = input_suffix_matches (atom, end_atom);
6280 else if (a_is_spectype)
6281 a_matched = input_spec_matches (atom, end_atom);
6283 a_matched = switch_matches (atom, end_atom, a_is_starred);
6285 if (a_matched != a_is_negated)
6287 disj_matched = true;
6289 d_end_atom = end_atom;
6296 /* Found the body, that is, the text to substitute if the
6297 current disjunction matches. */
6298 p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
6299 disj_matched && !n_way_matched);
6303 /* If we have an N-way choice, reset state for the next
6307 n_way_choice = true;
6308 n_way_matched |= disj_matched;
6309 disj_matched = false;
6310 disj_starred = true;
6311 d_atom = d_end_atom = NULL;
6320 while (*p++ != '}');
6325 fatal ("braced spec '%s' is invalid at '%c'", orig, *p);
6330 /* Subroutine of handle_braces. Scan and process a brace substitution body
6331 (X in the description of %{} syntax). P points one past the colon;
6332 ATOM and END_ATOM bracket the first atom which was found to be true
6333 (present) in the current disjunction; STARRED indicates whether all
6334 the atoms in the current disjunction were starred (for syntax validation);
6335 MATCHED indicates whether the disjunction matched or not, and therefore
6336 whether or not the body is to be processed through do_spec_1 or just
6337 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6341 process_brace_body (const char *p, const char *atom, const char *end_atom,
6342 int starred, int matched)
6344 const char *body, *end_body;
6345 unsigned int nesting_level;
6346 bool have_subst = false;
6348 /* Locate the closing } or ;, honoring nested braces.
6349 Trim trailing whitespace. */
6358 if (!--nesting_level)
6361 else if (*p == ';' && nesting_level == 1)
6363 else if (*p == '%' && p[1] == '*' && nesting_level == 1)
6365 else if (*p == '\0')
6371 while (end_body[-1] == ' ' || end_body[-1] == '\t')
6374 if (have_subst && !starred)
6379 /* Copy the substitution body to permanent storage and execute it.
6380 If have_subst is false, this is a simple matter of running the
6381 body through do_spec_1... */
6382 char *string = save_string (body, end_body - body);
6385 if (do_spec_1 (string, 0, NULL) < 0)
6390 /* ... but if have_subst is true, we have to process the
6391 body once for each matching switch, with %* set to the
6392 variant part of the switch. */
6393 unsigned int hard_match_len = end_atom - atom;
6396 for (i = 0; i < n_switches; i++)
6397 if (!strncmp (switches[i].part1, atom, hard_match_len)
6398 && check_live_switch (i, hard_match_len))
6400 if (do_spec_1 (string, 0,
6401 &switches[i].part1[hard_match_len]) < 0)
6403 /* Pass any arguments this switch has. */
6405 suffix_subst = NULL;
6413 fatal ("braced spec body '%s' is invalid", body);
6416 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6417 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6418 spec, or -1 if either exact match or %* is used.
6420 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6421 whose value does not begin with "no-" is obsoleted by the same value
6422 with the "no-", similarly for a switch with the "no-" prefix. */
6425 check_live_switch (int switchnum, int prefix_length)
6427 const char *name = switches[switchnum].part1;
6430 /* If we already processed this switch and determined if it was
6431 live or not, return our past determination. */
6432 if (switches[switchnum].live_cond != 0)
6433 return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
6434 && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
6435 && (switches[switchnum].live_cond & SWITCH_IGNORE) == 0);
6437 /* In the common case of {<at-most-one-letter>*}, a negating
6438 switch would always match, so ignore that case. We will just
6439 send the conflicting switches to the compiler phase. */
6440 if (prefix_length >= 0 && prefix_length <= 1)
6443 /* Now search for duplicate in a manner that depends on the name. */
6447 for (i = switchnum + 1; i < n_switches; i++)
6448 if (switches[i].part1[0] == 'O')
6450 switches[switchnum].validated = 1;
6451 switches[switchnum].live_cond = SWITCH_FALSE;
6456 case 'W': case 'f': case 'm':
6457 if (! strncmp (name + 1, "no-", 3))
6459 /* We have Xno-YYY, search for XYYY. */
6460 for (i = switchnum + 1; i < n_switches; i++)
6461 if (switches[i].part1[0] == name[0]
6462 && ! strcmp (&switches[i].part1[1], &name[4]))
6464 switches[switchnum].validated = 1;
6465 switches[switchnum].live_cond = SWITCH_FALSE;
6471 /* We have XYYY, search for Xno-YYY. */
6472 for (i = switchnum + 1; i < n_switches; i++)
6473 if (switches[i].part1[0] == name[0]
6474 && switches[i].part1[1] == 'n'
6475 && switches[i].part1[2] == 'o'
6476 && switches[i].part1[3] == '-'
6477 && !strcmp (&switches[i].part1[4], &name[1]))
6479 switches[switchnum].validated = 1;
6480 switches[switchnum].live_cond = SWITCH_FALSE;
6487 /* Otherwise the switch is live. */
6488 switches[switchnum].live_cond |= SWITCH_LIVE;
6492 /* Pass a switch to the current accumulating command
6493 in the same form that we received it.
6494 SWITCHNUM identifies the switch; it is an index into
6495 the vector of switches gcc received, which is `switches'.
6496 This cannot fail since it never finishes a command line.
6498 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6501 give_switch (int switchnum, int omit_first_word)
6503 if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
6506 if (!omit_first_word)
6508 do_spec_1 ("-", 0, NULL);
6509 do_spec_1 (switches[switchnum].part1, 1, NULL);
6512 if (switches[switchnum].args != 0)
6515 for (p = switches[switchnum].args; *p; p++)
6517 const char *arg = *p;
6519 do_spec_1 (" ", 0, NULL);
6522 unsigned length = strlen (arg);
6525 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
6526 if (arg[length] == '.')
6528 (CONST_CAST(char *, arg))[length] = 0;
6532 do_spec_1 (arg, 1, NULL);
6534 (CONST_CAST(char *, arg))[length] = '.';
6535 do_spec_1 (suffix_subst, 1, NULL);
6538 do_spec_1 (arg, 1, NULL);
6542 do_spec_1 (" ", 0, NULL);
6543 switches[switchnum].validated = 1;
6546 /* Search for a file named NAME trying various prefixes including the
6547 user's -B prefix and some standard ones.
6548 Return the absolute file name found. If nothing is found, return NAME. */
6551 find_file (const char *name)
6553 char *newname = find_a_file (&startfile_prefixes, name, R_OK, true);
6554 return newname ? newname : name;
6557 /* Determine whether a directory exists. If LINKER, return 0 for
6558 certain fixed names not needed by the linker. */
6561 is_directory (const char *path1, bool linker)
6568 /* Ensure the string ends with "/.". The resulting path will be a
6569 directory even if the given path is a symbolic link. */
6570 len1 = strlen (path1);
6571 path = (char *) alloca (3 + len1);
6572 memcpy (path, path1, len1);
6574 if (!IS_DIR_SEPARATOR (cp[-1]))
6575 *cp++ = DIR_SEPARATOR;
6579 /* Exclude directories that the linker is known to search. */
6581 && IS_DIR_SEPARATOR (path[0])
6583 && strncmp (path + 1, "lib", 3) == 0)
6585 && strncmp (path + 1, "usr", 3) == 0
6586 && IS_DIR_SEPARATOR (path[4])
6587 && strncmp (path + 5, "lib", 3) == 0)))
6590 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
6593 /* Set up the various global variables to indicate that we're processing
6594 the input file named FILENAME. */
6597 set_input (const char *filename)
6601 input_filename = filename;
6602 input_filename_length = strlen (input_filename);
6603 input_basename = lbasename (input_filename);
6605 /* Find a suffix starting with the last period,
6606 and set basename_length to exclude that suffix. */
6607 basename_length = strlen (input_basename);
6608 suffixed_basename_length = basename_length;
6609 p = input_basename + basename_length;
6610 while (p != input_basename && *p != '.')
6612 if (*p == '.' && p != input_basename)
6614 basename_length = p - input_basename;
6615 input_suffix = p + 1;
6620 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6621 we will need to do a stat on the input_filename. The
6622 INPUT_STAT_SET signals that the stat is needed. */
6626 /* On fatal signals, delete all the temporary files. */
6629 fatal_error (int signum)
6631 signal (signum, SIG_DFL);
6632 delete_failure_queue ();
6633 delete_temp_files ();
6634 /* Get the same signal again, this time not handled,
6635 so its normal effect occurs. */
6636 kill (getpid (), signum);
6639 /* Compare the contents of the two files named CMPFILE[0] and
6640 CMPFILE[1]. Return zero if they're identical, nonzero
6644 compare_files (char *cmpfile[])
6647 FILE *temp[2] = { NULL, NULL };
6653 void *map[2] = { NULL, NULL };
6655 for (i = 0; i < 2; i++)
6659 if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
6661 error ("%s: could not determine length of compare-debug file %s",
6662 input_filename, cmpfile[i]);
6667 length[i] = st.st_size;
6670 if (!ret && length[0] != length[1])
6672 error ("%s: -fcompare-debug failure (length)", input_filename);
6677 for (i = 0; i < 2; i++)
6679 int fd = open (cmpfile[i], O_RDONLY);
6682 error ("%s: could not open compare-debug file %s",
6683 input_filename, cmpfile[i]);
6688 map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
6691 if (map[i] == (void *) MAP_FAILED)
6700 if (memcmp (map[0], map[1], length[0]) != 0)
6702 error ("%s: -fcompare-debug failure", input_filename);
6707 for (i = 0; i < 2; i++)
6709 munmap ((caddr_t) map[i], length[i]);
6718 for (i = 0; i < 2; i++)
6720 temp[i] = fopen (cmpfile[i], "r");
6723 error ("%s: could not open compare-debug file %s",
6724 input_filename, cmpfile[i]);
6730 if (!ret && temp[0] && temp[1])
6734 c0 = fgetc (temp[0]);
6735 c1 = fgetc (temp[1]);
6739 error ("%s: -fcompare-debug failure",
6749 for (i = 1; i >= 0; i--)
6758 extern int main (int, char **);
6761 main (int argc, char **argv)
6765 int linker_was_run = 0;
6766 int lang_n_infiles = 0;
6767 int num_linker_inputs = 0;
6768 char *explicit_link_files;
6771 struct user_specs *uptr;
6772 char **old_argv = argv;
6774 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6775 on ?: in file-scope variable initializations. */
6776 asm_debug = ASM_DEBUG_SPEC;
6778 p = argv[0] + strlen (argv[0]);
6779 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
6783 xmalloc_set_program_name (programname);
6785 expandargv (&argc, &argv);
6787 /* Determine if any expansions were made. */
6788 if (argv != old_argv)
6789 at_file_supplied = true;
6791 prune_options (&argc, &argv);
6793 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6794 /* Perform host dependent initialization when needed. */
6795 GCC_DRIVER_HOST_INITIALIZATION;
6798 /* Unlock the stdio streams. */
6799 unlock_std_streams ();
6801 gcc_init_libintl ();
6803 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
6804 signal (SIGINT, fatal_error);
6806 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
6807 signal (SIGHUP, fatal_error);
6809 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
6810 signal (SIGTERM, fatal_error);
6812 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
6813 signal (SIGPIPE, fatal_error);
6816 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6817 receive the signal. A different setting is inheritable */
6818 signal (SIGCHLD, SIG_DFL);
6821 /* Allocate the argument vector. */
6824 obstack_init (&obstack);
6826 /* Build multilib_select, et. al from the separate lines that make up each
6827 multilib selection. */
6829 const char *const *q = multilib_raw;
6832 obstack_init (&multilib_obstack);
6833 while ((p = *q++) != (char *) 0)
6834 obstack_grow (&multilib_obstack, p, strlen (p));
6836 obstack_1grow (&multilib_obstack, 0);
6837 multilib_select = XOBFINISH (&multilib_obstack, const char *);
6839 q = multilib_matches_raw;
6840 while ((p = *q++) != (char *) 0)
6841 obstack_grow (&multilib_obstack, p, strlen (p));
6843 obstack_1grow (&multilib_obstack, 0);
6844 multilib_matches = XOBFINISH (&multilib_obstack, const char *);
6846 q = multilib_exclusions_raw;
6847 while ((p = *q++) != (char *) 0)
6848 obstack_grow (&multilib_obstack, p, strlen (p));
6850 obstack_1grow (&multilib_obstack, 0);
6851 multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
6854 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
6857 obstack_1grow (&multilib_obstack, ' ');
6858 obstack_grow (&multilib_obstack,
6859 multilib_defaults_raw[i],
6860 strlen (multilib_defaults_raw[i]));
6864 obstack_1grow (&multilib_obstack, 0);
6865 multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
6868 #ifdef INIT_ENVIRONMENT
6869 /* Set up any other necessary machine specific environment variables. */
6870 xputenv (INIT_ENVIRONMENT);
6873 /* Make a table of what switches there are (switches, n_switches).
6874 Make a table of specified input files (infiles, n_infiles).
6875 Decode switches that are handled locally. */
6877 process_command (argc, CONST_CAST2 (const char **, char **, argv));
6879 /* Initialize the vector of specs to just the default.
6880 This means one element containing 0s, as a terminator. */
6882 compilers = XNEWVAR (struct compiler, sizeof default_compilers);
6883 memcpy (compilers, default_compilers, sizeof default_compilers);
6884 n_compilers = n_default_compilers;
6886 /* Read specs from a file if there is one. */
6888 machine_suffix = concat (spec_machine, dir_separator_str,
6889 spec_version, dir_separator_str, NULL);
6890 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
6892 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true);
6893 /* Read the specs file unless it is a default one. */
6894 if (specs_file != 0 && strcmp (specs_file, "specs"))
6895 read_specs (specs_file, TRUE);
6899 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6900 for any override of as, ld and libraries. */
6901 specs_file = (char *) alloca (strlen (standard_exec_prefix)
6902 + strlen (just_machine_suffix) + sizeof ("specs"));
6904 strcpy (specs_file, standard_exec_prefix);
6905 strcat (specs_file, just_machine_suffix);
6906 strcat (specs_file, "specs");
6907 if (access (specs_file, R_OK) == 0)
6908 read_specs (specs_file, TRUE);
6910 /* Process any configure-time defaults specified for the command line
6911 options, via OPTION_DEFAULT_SPECS. */
6912 for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
6913 do_option_spec (option_default_specs[i].name,
6914 option_default_specs[i].spec);
6916 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6917 of the command line. */
6919 for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
6920 do_self_spec (driver_self_specs[i]);
6924 enum save_temps save;
6926 if (!compare_debug_second)
6928 n_switches_debug_check[1] = n_switches;
6929 switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
6932 do_self_spec ("%:compare-debug-self-opt()");
6933 n_switches_debug_check[0] = n_switches;
6934 switches_debug_check[0] = switches;
6936 n_switches = n_switches_debug_check[1];
6937 switches = switches_debug_check[1];
6940 /* Avoid crash when computing %j in this early. */
6941 save = save_temps_flag;
6942 save_temps_flag = SAVE_TEMPS_NONE;
6944 compare_debug = -compare_debug;
6945 do_self_spec ("%:compare-debug-self-opt()");
6947 save_temps_flag = save;
6949 if (!compare_debug_second)
6951 n_switches_debug_check[1] = n_switches;
6952 switches_debug_check[1] = switches;
6953 compare_debug = -compare_debug;
6954 n_switches = n_switches_debug_check[0];
6955 switches = switches_debug_check[0];
6959 /* If not cross-compiling, look for executables in the standard
6961 if (*cross_compile == '0')
6963 if (*md_exec_prefix)
6965 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
6966 PREFIX_PRIORITY_LAST, 0, 0);
6970 /* Process sysroot_suffix_spec. */
6971 if (*sysroot_suffix_spec != 0
6972 && do_spec_2 (sysroot_suffix_spec) == 0)
6974 if (argbuf_index > 1)
6975 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6976 else if (argbuf_index == 1)
6977 target_sysroot_suffix = xstrdup (argbuf[argbuf_index -1]);
6980 #ifdef HAVE_LD_SYSROOT
6981 /* Pass the --sysroot option to the linker, if it supports that. If
6982 there is a sysroot_suffix_spec, it has already been processed by
6983 this point, so target_system_root really is the system root we
6985 if (target_system_root)
6987 obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6988 obstack_grow0 (&obstack, link_spec, strlen (link_spec));
6989 set_spec ("link", XOBFINISH (&obstack, const char *));
6993 /* Process sysroot_hdrs_suffix_spec. */
6994 if (*sysroot_hdrs_suffix_spec != 0
6995 && do_spec_2 (sysroot_hdrs_suffix_spec) == 0)
6997 if (argbuf_index > 1)
6998 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6999 else if (argbuf_index == 1)
7000 target_sysroot_hdrs_suffix = xstrdup (argbuf[argbuf_index -1]);
7003 /* Look for startfiles in the standard places. */
7004 if (*startfile_prefix_spec != 0
7005 && do_spec_2 (startfile_prefix_spec) == 0
7006 && do_spec_1 (" ", 0, NULL) == 0)
7009 for (ndx = 0; ndx < argbuf_index; ndx++)
7010 add_sysrooted_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
7011 PREFIX_PRIORITY_LAST, 0, 1);
7013 /* We should eventually get rid of all these and stick to
7014 startfile_prefix_spec exclusively. */
7015 else if (*cross_compile == '0' || target_system_root)
7017 if (*md_startfile_prefix)
7018 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
7019 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7021 if (*md_startfile_prefix_1)
7022 add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
7023 "GCC", PREFIX_PRIORITY_LAST, 0, 1);
7025 /* If standard_startfile_prefix is relative, base it on
7026 standard_exec_prefix. This lets us move the installed tree
7027 as a unit. If GCC_EXEC_PREFIX is defined, base
7028 standard_startfile_prefix on that as well.
7030 If the prefix is relative, only search it for native compilers;
7031 otherwise we will search a directory containing host libraries. */
7032 if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
7033 add_sysrooted_prefix (&startfile_prefixes,
7034 standard_startfile_prefix, "BINUTILS",
7035 PREFIX_PRIORITY_LAST, 0, 1);
7036 else if (*cross_compile == '0')
7038 add_prefix (&startfile_prefixes,
7039 concat (gcc_exec_prefix
7040 ? gcc_exec_prefix : standard_exec_prefix,
7042 standard_startfile_prefix, NULL),
7043 NULL, PREFIX_PRIORITY_LAST, 0, 1);
7046 /* Sysrooted prefixes are relocated because target_system_root is
7047 also relocated by gcc_exec_prefix. */
7048 if (*standard_startfile_prefix_1)
7049 add_sysrooted_prefix (&startfile_prefixes,
7050 standard_startfile_prefix_1, "BINUTILS",
7051 PREFIX_PRIORITY_LAST, 0, 1);
7052 if (*standard_startfile_prefix_2)
7053 add_sysrooted_prefix (&startfile_prefixes,
7054 standard_startfile_prefix_2, "BINUTILS",
7055 PREFIX_PRIORITY_LAST, 0, 1);
7058 /* Process any user specified specs in the order given on the command
7060 for (uptr = user_specs_head; uptr; uptr = uptr->next)
7062 char *filename = find_a_file (&startfile_prefixes, uptr->filename,
7064 read_specs (filename ? filename : uptr->filename, FALSE);
7067 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7068 if (gcc_exec_prefix)
7069 gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
7070 spec_version, dir_separator_str, NULL);
7072 /* Now we have the specs.
7073 Set the `valid' bits for switches that match anything in any spec. */
7075 validate_all_switches ();
7077 /* Now that we have the switches and the specs, set
7078 the subdirectory based on the options. */
7079 set_multilib_dir ();
7081 /* Set up to remember the pathname of gcc and any options
7082 needed for collect. We use argv[0] instead of programname because
7083 we need the complete pathname. */
7084 obstack_init (&collect_obstack);
7085 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7086 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
7087 xputenv (XOBFINISH (&collect_obstack, char *));
7089 /* Set up to remember the pathname of the lto wrapper. */
7091 lto_wrapper_spec = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
7092 if (lto_wrapper_spec)
7094 obstack_init (&collect_obstack);
7095 obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
7096 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7097 obstack_grow (&collect_obstack, lto_wrapper_spec,
7098 strlen (lto_wrapper_spec) + 1);
7099 xputenv (XOBFINISH (&collect_obstack, char *));
7102 /* Warn about any switches that no pass was interested in. */
7104 for (i = 0; (int) i < n_switches; i++)
7105 if (! switches[i].validated)
7106 error ("unrecognized option '-%s'", switches[i].part1);
7108 /* Obey some of the options. */
7110 if (print_search_dirs)
7112 printf (_("install: %s%s\n"),
7113 gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
7114 gcc_exec_prefix ? "" : machine_suffix);
7115 printf (_("programs: %s\n"),
7116 build_search_list (&exec_prefixes, "", false, false));
7117 printf (_("libraries: %s\n"),
7118 build_search_list (&startfile_prefixes, "", false, true));
7122 if (print_file_name)
7124 printf ("%s\n", find_file (print_file_name));
7128 if (print_prog_name)
7130 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0);
7131 printf ("%s\n", (newname ? newname : print_prog_name));
7135 if (print_multi_lib)
7137 print_multilib_info ();
7141 if (print_multi_directory)
7143 if (multilib_dir == NULL)
7146 printf ("%s\n", multilib_dir);
7152 if (target_system_root)
7154 if (target_sysroot_suffix)
7155 printf ("%s%s\n", target_system_root, target_sysroot_suffix);
7157 printf ("%s\n", target_system_root);
7162 if (print_multi_os_directory)
7164 if (multilib_os_dir == NULL)
7167 printf ("%s\n", multilib_os_dir);
7171 if (print_sysroot_headers_suffix)
7173 if (*sysroot_hdrs_suffix_spec)
7175 printf("%s\n", (target_sysroot_hdrs_suffix
7176 ? target_sysroot_hdrs_suffix
7181 /* The error status indicates that only one set of fixed
7182 headers should be built. */
7183 fatal ("not configured with sysroot headers suffix");
7186 if (print_help_list)
7192 printf (_("\nFor bug reporting instructions, please see:\n"));
7193 printf ("%s.\n", bug_report_url);
7198 /* We do not exit here. Instead we have created a fake input file
7199 called 'help-dummy' which needs to be compiled, and we pass this
7200 on the various sub-processes, along with the --help switch.
7201 Ensure their output appears after ours. */
7202 fputc ('\n', stdout);
7208 printf (_("%s %s%s\n"), programname, pkgversion_string,
7210 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7212 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7213 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7218 /* We do not exit here. We use the same mechanism of --help to print
7219 the version of the sub-processes. */
7220 fputc ('\n', stdout);
7229 notice ("Target: %s\n", spec_machine);
7230 notice ("Configured with: %s\n", configuration_arguments);
7232 #ifdef THREAD_MODEL_SPEC
7233 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7234 but there's no point in doing all this processing just to get
7235 thread_model back. */
7236 obstack_init (&obstack);
7237 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7238 obstack_1grow (&obstack, '\0');
7239 thrmod = XOBFINISH (&obstack, const char *);
7241 thrmod = thread_model;
7244 notice ("Thread model: %s\n", thrmod);
7246 /* compiler_version is truncated at the first space when initialized
7247 from version string, so truncate version_string at the first space
7248 before comparing. */
7249 for (n = 0; version_string[n]; n++)
7250 if (version_string[n] == ' ')
7253 if (! strncmp (version_string, compiler_version, n)
7254 && compiler_version[n] == 0)
7255 notice ("gcc version %s %s\n", version_string, pkgversion_string);
7257 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7258 version_string, pkgversion_string, compiler_version);
7264 if (n_infiles == added_libraries)
7265 fatal ("no input files");
7267 /* Make a place to record the compiler output file names
7268 that correspond to the input files. */
7271 i += lang_specific_extra_outfiles;
7272 outfiles = XCNEWVEC (const char *, i);
7274 /* Record which files were specified explicitly as link input. */
7276 explicit_link_files = XCNEWVEC (char, n_infiles);
7279 combine_inputs = true;
7281 combine_inputs = false;
7283 for (i = 0; (int) i < n_infiles; i++)
7285 const char *name = infiles[i].name;
7286 struct compiler *compiler = lookup_compiler (name,
7288 infiles[i].language);
7290 if (compiler && !(compiler->combinable))
7291 combine_inputs = false;
7293 if (lang_n_infiles > 0 && compiler != input_file_compiler
7294 && infiles[i].language && infiles[i].language[0] != '*')
7295 infiles[i].incompiler = compiler;
7299 input_file_compiler = compiler;
7300 infiles[i].incompiler = compiler;
7304 /* Since there is no compiler for this input file, assume it is a
7306 explicit_link_files[i] = 1;
7307 infiles[i].incompiler = NULL;
7309 infiles[i].compiled = false;
7310 infiles[i].preprocessed = false;
7313 if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
7314 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7316 if (combine_flag && save_temps_flag)
7318 bool save_combine_inputs = combine_inputs;
7319 /* Must do a separate pre-processing pass for C & Objective-C files, to
7320 obtain individual .i files. */
7322 combine_inputs = false;
7323 for (i = 0; (int) i < n_infiles; i++)
7325 int this_file_error = 0;
7327 input_file_number = i;
7328 set_input (infiles[i].name);
7329 if (infiles[i].incompiler
7330 && (infiles[i].incompiler)->needs_preprocessing)
7331 input_file_compiler = infiles[i].incompiler;
7335 if (input_file_compiler)
7337 if (input_file_compiler->spec[0] == '#')
7339 error ("%s: %s compiler not installed on this system",
7340 input_filename, &input_file_compiler->spec[1]);
7341 this_file_error = 1;
7345 value = do_spec (input_file_compiler->spec);
7346 infiles[i].preprocessed = true;
7347 if (!have_o_argbuf_index)
7348 fatal ("spec '%s' is invalid", input_file_compiler->spec);
7349 infiles[i].name = argbuf[have_o_argbuf_index];
7350 infiles[i].incompiler
7351 = lookup_compiler (infiles[i].name,
7352 strlen (infiles[i].name),
7353 infiles[i].language);
7356 this_file_error = 1;
7360 if (this_file_error)
7362 delete_failure_queue ();
7366 clear_failure_queue ();
7368 combine_inputs = save_combine_inputs;
7371 for (i = 0; (int) i < n_infiles; i++)
7373 int this_file_error = 0;
7375 /* Tell do_spec what to substitute for %i. */
7377 input_file_number = i;
7378 set_input (infiles[i].name);
7380 if (infiles[i].compiled)
7383 /* Use the same thing in %o, unless cp->spec says otherwise. */
7385 outfiles[i] = input_filename;
7387 /* Figure out which compiler from the file's suffix. */
7389 if (! combine_inputs)
7391 = lookup_compiler (infiles[i].name, input_filename_length,
7392 infiles[i].language);
7394 input_file_compiler = infiles[i].incompiler;
7396 if (input_file_compiler)
7398 /* Ok, we found an applicable compiler. Run its spec. */
7400 if (input_file_compiler->spec[0] == '#')
7402 error ("%s: %s compiler not installed on this system",
7403 input_filename, &input_file_compiler->spec[1]);
7404 this_file_error = 1;
7410 if (debug_check_temp_file[0])
7411 free (debug_check_temp_file[0]);
7412 debug_check_temp_file[0] = NULL;
7414 if (debug_check_temp_file[1])
7415 free (debug_check_temp_file[1]);
7416 debug_check_temp_file[1] = NULL;
7419 value = do_spec (input_file_compiler->spec);
7420 infiles[i].compiled = true;
7422 this_file_error = 1;
7423 else if (compare_debug && debug_check_temp_file[0])
7426 error ("Recompiling with -fcompare-debug");
7428 compare_debug = -compare_debug;
7429 n_switches = n_switches_debug_check[1];
7430 switches = switches_debug_check[1];
7432 value = do_spec (input_file_compiler->spec);
7434 compare_debug = -compare_debug;
7435 n_switches = n_switches_debug_check[0];
7436 switches = switches_debug_check[0];
7440 error ("during -fcompare-debug recompilation");
7441 this_file_error = 1;
7444 gcc_assert (debug_check_temp_file[1]
7445 && strcmp (debug_check_temp_file[0],
7446 debug_check_temp_file[1]));
7449 error ("Comparing final insns dumps");
7451 if (compare_files (debug_check_temp_file))
7452 this_file_error = 1;
7457 if (debug_check_temp_file[0])
7458 free (debug_check_temp_file[0]);
7459 debug_check_temp_file[0] = NULL;
7461 if (debug_check_temp_file[1])
7462 free (debug_check_temp_file[1]);
7463 debug_check_temp_file[1] = NULL;
7468 /* If this file's name does not contain a recognized suffix,
7469 record it as explicit linker input. */
7472 explicit_link_files[i] = 1;
7474 /* Clear the delete-on-failure queue, deleting the files in it
7475 if this compilation failed. */
7477 if (this_file_error)
7479 delete_failure_queue ();
7482 /* If this compilation succeeded, don't delete those files later. */
7483 clear_failure_queue ();
7486 /* Reset the input file name to the first compile/object file name, for use
7487 with %b in LINK_SPEC. We use the first input file that we can find
7488 a compiler to compile it instead of using infiles.language since for
7489 languages other than C we use aliases that we then lookup later. */
7494 for (i = 0; i < n_infiles ; i++)
7495 if (infiles[i].language && infiles[i].language[0] != '*')
7497 set_input (infiles[i].name);
7502 if (error_count == 0)
7504 /* Make sure INPUT_FILE_NUMBER points to first available open
7506 input_file_number = n_infiles;
7507 if (lang_specific_pre_link ())
7511 /* Determine if there are any linker input files. */
7512 num_linker_inputs = 0;
7513 for (i = 0; (int) i < n_infiles; i++)
7514 if (explicit_link_files[i] || outfiles[i] != NULL)
7515 num_linker_inputs++;
7517 /* Run ld to link all the compiler output files. */
7519 if (num_linker_inputs > 0 && error_count == 0 && print_subprocess_help < 2)
7521 int tmp = execution_count;
7522 const char *fuse_linker_plugin = "fuse-linker-plugin";
7524 /* We'll use ld if we can't find collect2. */
7525 if (! strcmp (linker_name_spec, "collect2"))
7527 char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
7529 linker_name_spec = "ld";
7532 if (switch_matches (fuse_linker_plugin,
7533 fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
7535 linker_plugin_file_spec = find_a_file (&exec_prefixes,
7536 "liblto_plugin.so", X_OK,
7538 if (!linker_plugin_file_spec)
7539 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7541 lto_libgcc_spec = find_a_file (&startfile_prefixes, "libgcc.a",
7543 if (!lto_libgcc_spec)
7544 fatal ("could not find libgcc.a");
7546 lto_gcc_spec = argv[0];
7548 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7550 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
7551 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
7553 if (print_subprocess_help == 1)
7555 printf (_("\nLinker options\n==============\n\n"));
7556 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7557 " to the linker.\n\n"));
7560 value = do_spec (link_command_spec);
7563 linker_was_run = (tmp != execution_count);
7566 /* If options said don't run linker,
7567 complain about input files to be given to the linker. */
7569 if (! linker_was_run && error_count == 0)
7570 for (i = 0; (int) i < n_infiles; i++)
7571 if (explicit_link_files[i]
7572 && !(infiles[i].language && infiles[i].language[0] == '*'))
7573 error ("%s: linker input file unused because linking not done",
7576 /* Delete some or all of the temporary files we made. */
7579 delete_failure_queue ();
7580 delete_temp_files ();
7582 if (print_help_list)
7584 printf (("\nFor bug reporting instructions, please see:\n"));
7585 printf ("%s\n", bug_report_url);
7588 return (signal_count != 0 ? 2
7589 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
7593 /* Find the proper compilation spec for the file name NAME,
7594 whose length is LENGTH. LANGUAGE is the specified language,
7595 or 0 if this file is to be passed to the linker. */
7597 static struct compiler *
7598 lookup_compiler (const char *name, size_t length, const char *language)
7600 struct compiler *cp;
7602 /* If this was specified by the user to be a linker input, indicate that. */
7603 if (language != 0 && language[0] == '*')
7606 /* Otherwise, look for the language, if one is spec'd. */
7609 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7610 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
7613 error ("language %s not recognized", language);
7617 /* Look for a suffix. */
7618 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7620 if (/* The suffix `-' matches only the file name `-'. */
7621 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7622 || (strlen (cp->suffix) < length
7623 /* See if the suffix matches the end of NAME. */
7624 && !strcmp (cp->suffix,
7625 name + length - strlen (cp->suffix))
7630 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7631 /* Look again, but case-insensitively this time. */
7633 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
7635 if (/* The suffix `-' matches only the file name `-'. */
7636 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
7637 || (strlen (cp->suffix) < length
7638 /* See if the suffix matches the end of NAME. */
7639 && ((!strcmp (cp->suffix,
7640 name + length - strlen (cp->suffix))
7641 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7642 && !strcasecmp (cp->suffix,
7643 name + length - strlen (cp->suffix)))
7649 if (cp >= compilers)
7651 if (cp->spec[0] != '@')
7652 /* A non-alias entry: return it. */
7655 /* An alias entry maps a suffix to a language.
7656 Search for the language; pass 0 for NAME and LENGTH
7657 to avoid infinite recursion if language not found. */
7658 return lookup_compiler (NULL, 0, cp->spec + 1);
7664 save_string (const char *s, int len)
7666 char *result = XNEWVEC (char, len + 1);
7668 memcpy (result, s, len);
7674 pfatal_with_name (const char *name)
7676 perror_with_name (name);
7677 delete_temp_files ();
7682 perror_with_name (const char *name)
7684 error ("%s: %s", name, xstrerror (errno));
7687 /* Output an error message and exit. */
7690 fancy_abort (const char *file, int line, const char *func)
7692 fatal_ice ("internal gcc abort in %s, at %s:%d", func, file, line);
7695 /* Output an error message and exit. */
7698 fatal_ice (const char *cmsgid, ...)
7702 va_start (ap, cmsgid);
7704 fprintf (stderr, "%s: ", programname);
7705 vfprintf (stderr, _(cmsgid), ap);
7707 fprintf (stderr, "\n");
7708 delete_temp_files ();
7709 exit (pass_exit_codes ? ICE_EXIT_CODE : 1);
7713 fatal (const char *cmsgid, ...)
7717 va_start (ap, cmsgid);
7719 fprintf (stderr, "%s: ", programname);
7720 vfprintf (stderr, _(cmsgid), ap);
7722 fprintf (stderr, "\n");
7723 delete_temp_files ();
7727 /* The argument is actually c-format, not gcc-internal-format,
7728 but because functions with identical names are used through
7729 the rest of the compiler with gcc-internal-format, we just
7730 need to hope all users of these functions use the common
7731 subset between c-format and gcc-internal-format. */
7734 error (const char *gmsgid, ...)
7738 va_start (ap, gmsgid);
7739 fprintf (stderr, "%s: ", programname);
7740 vfprintf (stderr, _(gmsgid), ap);
7743 fprintf (stderr, "\n");
7747 notice (const char *cmsgid, ...)
7751 va_start (ap, cmsgid);
7752 vfprintf (stderr, _(cmsgid), ap);
7757 validate_switches_from_spec (const char *spec)
7759 const char *p = spec;
7762 if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{')))
7763 /* We have a switch spec. */
7764 p = validate_switches (p + 1);
7768 validate_all_switches (void)
7770 struct compiler *comp;
7771 struct spec_list *spec;
7773 for (comp = compilers; comp->spec; comp++)
7774 validate_switches_from_spec (comp->spec);
7776 /* Look through the linked list of specs read from the specs file. */
7777 for (spec = specs; spec; spec = spec->next)
7778 validate_switches_from_spec (*spec->ptr_spec);
7780 validate_switches_from_spec (link_command_spec);
7783 /* Look at the switch-name that comes after START
7784 and mark as valid all supplied switches that match it. */
7787 validate_switches (const char *start)
7789 const char *p = start;
7793 bool suffix = false;
7794 bool starred = false;
7796 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7805 if (*p == '.' || *p == ',')
7809 while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7810 || *p == ',' || *p == '.' || *p == '@')
7815 starred = true, p++;
7821 /* Mark all matching switches as valid. */
7822 for (i = 0; i < n_switches; i++)
7823 if (!strncmp (switches[i].part1, atom, len)
7824 && (starred || switches[i].part1[len] == 0))
7825 switches[i].validated = 1;
7829 if (*p && (p[-1] == '|' || p[-1] == '&'))
7832 if (*p && p[-1] == ':')
7834 while (*p && *p != ';' && *p != '}')
7839 if (*p == '{' || *p == '<')
7840 p = validate_switches (p+1);
7841 else if (p[0] == 'W' && p[1] == '{')
7842 p = validate_switches (p+2);
7849 if (*p && p[-1] == ';')
7863 static struct mdswitchstr *mdswitches;
7864 static int n_mdswitches;
7866 /* Check whether a particular argument was used. The first time we
7867 canonicalize the switches to keep only the ones we care about. */
7870 used_arg (const char *p, int len)
7875 const char *replace;
7880 static struct mswitchstr *mswitches;
7881 static int n_mswitches;
7886 struct mswitchstr *matches;
7890 /* Break multilib_matches into the component strings of string
7891 and replacement string. */
7892 for (q = multilib_matches; *q != '\0'; q++)
7897 = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
7899 q = multilib_matches;
7908 fatal ("multilib spec '%s' is invalid", multilib_matches);
7912 matches[i].len = q - matches[i].str;
7914 matches[i].replace = ++q;
7915 while (*q != ';' && *q != '\0')
7918 goto invalid_matches;
7921 matches[i].rep_len = q - matches[i].replace;
7927 /* Now build a list of the replacement string for switches that we care
7928 about. Make sure we allocate at least one entry. This prevents
7929 xmalloc from calling fatal, and prevents us from re-executing this
7932 = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
7933 for (i = 0; i < n_switches; i++)
7934 if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
7936 int xlen = strlen (switches[i].part1);
7937 for (j = 0; j < cnt; j++)
7938 if (xlen == matches[j].len
7939 && ! strncmp (switches[i].part1, matches[j].str, xlen))
7941 mswitches[n_mswitches].str = matches[j].replace;
7942 mswitches[n_mswitches].len = matches[j].rep_len;
7943 mswitches[n_mswitches].replace = (char *) 0;
7944 mswitches[n_mswitches].rep_len = 0;
7950 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7951 on the command line nor any options mutually incompatible with
7953 for (i = 0; i < n_mdswitches; i++)
7957 for (q = multilib_options; *q != '\0'; q++)
7963 while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
7964 || strchr (" /", q[mdswitches[i].len]) == NULL)
7966 while (*q != ' ' && *q != '/' && *q != '\0')
7973 if (*q != ' ' && *q != '\0')
7975 while (*r != ' ' && *r != '\0')
7978 while (*q != ' ' && *q != '/' && *q != '\0')
7981 if (used_arg (r, q - r))
7986 mswitches[n_mswitches].str = mdswitches[i].str;
7987 mswitches[n_mswitches].len = mdswitches[i].len;
7988 mswitches[n_mswitches].replace = (char *) 0;
7989 mswitches[n_mswitches].rep_len = 0;
8002 for (i = 0; i < n_mswitches; i++)
8003 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
8010 default_arg (const char *p, int len)
8014 for (i = 0; i < n_mdswitches; i++)
8015 if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
8021 /* Work out the subdirectory to use based on the options. The format of
8022 multilib_select is a list of elements. Each element is a subdirectory
8023 name followed by a list of options followed by a semicolon. The format
8024 of multilib_exclusions is the same, but without the preceding
8025 directory. First gcc will check the exclusions, if none of the options
8026 beginning with an exclamation point are present, and all of the other
8027 options are present, then we will ignore this completely. Passing
8028 that, gcc will consider each multilib_select in turn using the same
8029 rules for matching the options. If a match is found, that subdirectory
8033 set_multilib_dir (void)
8036 unsigned int this_path_len;
8037 const char *this_path, *this_arg;
8038 const char *start, *end;
8040 int ok, ndfltok, first;
8043 start = multilib_defaults;
8044 while (*start == ' ' || *start == '\t')
8046 while (*start != '\0')
8049 while (*start != ' ' && *start != '\t' && *start != '\0')
8051 while (*start == ' ' || *start == '\t')
8059 mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
8060 for (start = multilib_defaults; *start != '\0'; start = end + 1)
8062 while (*start == ' ' || *start == '\t')
8068 for (end = start + 1;
8069 *end != ' ' && *end != '\t' && *end != '\0'; end++)
8072 obstack_grow (&multilib_obstack, start, end - start);
8073 obstack_1grow (&multilib_obstack, 0);
8074 mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
8075 mdswitches[i++].len = end - start;
8082 p = multilib_exclusions;
8085 /* Ignore newlines. */
8092 /* Check the arguments. */
8099 fatal ("multilib exclusions '%s' is invalid",
8100 multilib_exclusions);
8110 while (*p != ' ' && *p != ';')
8113 goto invalid_exclusions;
8117 if (*this_arg != '!')
8125 ok = used_arg (this_arg, p - this_arg);
8140 p = multilib_select;
8143 /* Ignore newlines. */
8150 /* Get the initial path. */
8157 fatal ("multilib select '%s' is invalid",
8162 this_path_len = p - this_path;
8164 /* Check the arguments. */
8171 goto invalid_select;
8180 while (*p != ' ' && *p != ';')
8183 goto invalid_select;
8187 if (*this_arg != '!')
8195 /* If this is a default argument, we can just ignore it.
8196 This is true even if this_arg begins with '!'. Beginning
8197 with '!' does not mean that this argument is necessarily
8198 inappropriate for this library: it merely means that
8199 there is a more specific library which uses this
8200 argument. If this argument is a default, we need not
8201 consider that more specific library. */
8202 ok = used_arg (this_arg, p - this_arg);
8209 if (default_arg (this_arg, p - this_arg))
8218 if (this_path_len != 1
8219 || this_path[0] != '.')
8221 char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
8224 strncpy (new_multilib_dir, this_path, this_path_len);
8225 new_multilib_dir[this_path_len] = '\0';
8226 q = strchr (new_multilib_dir, ':');
8229 multilib_dir = new_multilib_dir;
8236 const char *q = this_path, *end = this_path + this_path_len;
8238 while (q < end && *q != ':')
8242 char *new_multilib_os_dir = XNEWVEC (char, end - q);
8243 memcpy (new_multilib_os_dir, q + 1, end - q - 1);
8244 new_multilib_os_dir[end - q - 1] = '\0';
8245 multilib_os_dir = new_multilib_os_dir;
8253 if (multilib_dir == NULL && multilib_os_dir != NULL
8254 && strcmp (multilib_os_dir, ".") == 0)
8256 free (CONST_CAST (char *, multilib_os_dir));
8257 multilib_os_dir = NULL;
8259 else if (multilib_dir != NULL && multilib_os_dir == NULL)
8260 multilib_os_dir = multilib_dir;
8263 /* Print out the multiple library subdirectory selection
8264 information. This prints out a series of lines. Each line looks
8265 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8266 required. Only the desired options are printed out, the negative
8267 matches. The options are print without a leading dash. There are
8268 no spaces to make it easy to use the information in the shell.
8269 Each subdirectory is printed only once. This assumes the ordering
8270 generated by the genmultilib script. Also, we leave out ones that match
8274 print_multilib_info (void)
8276 const char *p = multilib_select;
8277 const char *last_path = 0, *this_path;
8279 unsigned int last_path_len = 0;
8284 /* Ignore newlines. */
8291 /* Get the initial path. */
8298 fatal ("multilib select '%s' is invalid", multilib_select);
8304 /* When --disable-multilib was used but target defines
8305 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8306 to find multilib_os_dir, so skip them from output. */
8307 if (this_path[0] == '.' && this_path[1] == ':')
8310 /* Check for matches with the multilib_exclusions. We don't bother
8311 with the '!' in either list. If any of the exclusion rules match
8312 all of its options with the select rule, we skip it. */
8314 const char *e = multilib_exclusions;
8315 const char *this_arg;
8320 /* Ignore newlines. */
8327 /* Check the arguments. */
8336 fatal ("multilib exclusion '%s' is invalid",
8337 multilib_exclusions);
8348 while (*e != ' ' && *e != ';')
8351 goto invalid_exclusion;
8359 int len = e - this_arg;
8362 goto invalid_select;
8366 while (*q != ' ' && *q != ';')
8369 goto invalid_select;
8373 if (! strncmp (arg, this_arg,
8374 (len < q - arg) ? q - arg : len)
8375 || default_arg (this_arg, e - this_arg))
8405 /* If this is a duplicate, skip it. */
8406 skip = (last_path != 0
8407 && (unsigned int) (p - this_path) == last_path_len
8408 && ! strncmp (last_path, this_path, last_path_len));
8410 last_path = this_path;
8411 last_path_len = p - this_path;
8414 /* If this directory requires any default arguments, we can skip
8415 it. We will already have printed a directory identical to
8416 this one which does not require that default argument. */
8427 goto invalid_select;
8434 while (*q != ' ' && *q != ';')
8437 goto invalid_select;
8442 && default_arg (arg, q - arg))
8457 for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
8468 goto invalid_select;
8476 use_arg = *p != '!';
8481 while (*p != ' ' && *p != ';')
8484 goto invalid_select;
8496 /* If there are extra options, print them now. */
8497 if (multilib_extra && *multilib_extra)
8499 int print_at = TRUE;
8502 for (q = multilib_extra; *q != '\0'; q++)
8523 /* getenv built-in spec function.
8525 Returns the value of the environment variable given by its first
8526 argument, concatenated with the second argument. If the
8527 environment variable is not defined, a fatal error is issued. */
8530 getenv_spec_function (int argc, const char **argv)
8540 value = getenv (argv[0]);
8542 fatal ("environment variable \"%s\" not defined", argv[0]);
8544 /* We have to escape every character of the environment variable so
8545 they are not interpreted as active spec characters. A
8546 particularly painful case is when we are reading a variable
8547 holding a windows path complete with \ separators. */
8548 len = strlen (value) * 2 + strlen (argv[1]) + 1;
8549 result = XNEWVAR (char, len);
8550 for (ptr = result; *value; ptr += 2)
8556 strcpy (ptr, argv[1]);
8561 /* if-exists built-in spec function.
8563 Checks to see if the file specified by the absolute pathname in
8564 ARGS exists. Returns that pathname if found.
8566 The usual use for this function is to check for a library file
8567 (whose name has been expanded with %s). */
8570 if_exists_spec_function (int argc, const char **argv)
8572 /* Must have only one argument. */
8573 if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8579 /* if-exists-else built-in spec function.
8581 This is like if-exists, but takes an additional argument which
8582 is returned if the first argument does not exist. */
8585 if_exists_else_spec_function (int argc, const char **argv)
8587 /* Must have exactly two arguments. */
8591 if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
8597 /* replace-outfile built-in spec function.
8599 This looks for the first argument in the outfiles array's name and
8600 replaces it with the second argument. */
8603 replace_outfile_spec_function (int argc, const char **argv)
8606 /* Must have exactly two arguments. */
8610 for (i = 0; i < n_infiles; i++)
8612 if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
8613 outfiles[i] = xstrdup (argv[1]);
8618 /* Given two version numbers, compares the two numbers.
8619 A version number must match the regular expression
8620 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8623 compare_version_strings (const char *v1, const char *v2)
8628 if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8629 REG_EXTENDED | REG_NOSUB) != 0)
8631 rresult = regexec (&r, v1, 0, NULL, 0);
8632 if (rresult == REG_NOMATCH)
8633 fatal ("invalid version number `%s'", v1);
8634 else if (rresult != 0)
8636 rresult = regexec (&r, v2, 0, NULL, 0);
8637 if (rresult == REG_NOMATCH)
8638 fatal ("invalid version number `%s'", v2);
8639 else if (rresult != 0)
8642 return strverscmp (v1, v2);
8646 /* version_compare built-in spec function.
8648 This takes an argument of the following form:
8650 <comparison-op> <arg1> [<arg2>] <switch> <result>
8652 and produces "result" if the comparison evaluates to true,
8653 and nothing if it doesn't.
8655 The supported <comparison-op> values are:
8657 >= true if switch is a later (or same) version than arg1
8659 < true if switch is an earlier version than arg1
8661 >< true if switch is arg1 or later, and earlier than arg2
8662 <> true if switch is earlier than arg1 or is arg2 or later
8664 If the switch is not present, the condition is false unless
8665 the first character of the <comparison-op> is '!'.
8668 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8669 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8672 version_compare_spec_function (int argc, const char **argv)
8676 const char *switch_value = NULL;
8681 fatal ("too few arguments to %%:version-compare");
8682 if (argv[0][0] == '\0')
8684 if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
8686 if (argc != nargs + 3)
8687 fatal ("too many arguments to %%:version-compare");
8689 switch_len = strlen (argv[nargs + 1]);
8690 for (i = 0; i < n_switches; i++)
8691 if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
8692 && check_live_switch (i, switch_len))
8693 switch_value = switches[i].part1 + switch_len;
8695 if (switch_value == NULL)
8699 comp1 = compare_version_strings (switch_value, argv[1]);
8701 comp2 = compare_version_strings (switch_value, argv[2]);
8703 comp2 = -1; /* This value unused. */
8706 switch (argv[0][0] << 8 | argv[0][1])
8708 case '>' << 8 | '=':
8709 result = comp1 >= 0;
8711 case '!' << 8 | '<':
8712 result = comp1 >= 0 || switch_value == NULL;
8717 case '!' << 8 | '>':
8718 result = comp1 < 0 || switch_value == NULL;
8720 case '>' << 8 | '<':
8721 result = comp1 >= 0 && comp2 < 0;
8723 case '<' << 8 | '>':
8724 result = comp1 < 0 || comp2 >= 0;
8728 fatal ("unknown operator '%s' in %%:version-compare", argv[0]);
8733 return argv[nargs + 2];
8736 /* %:include builtin spec function. This differs from %include in that it
8737 can be nested inside a spec, and thus be conditionalized. It takes
8738 one argument, the filename, and looks for it in the startfile path.
8739 The result is always NULL, i.e. an empty expansion. */
8742 include_spec_function (int argc, const char **argv)
8749 file = find_a_file (&startfile_prefixes, argv[0], R_OK, true);
8750 read_specs (file ? file : argv[0], FALSE);
8755 /* %:print-asm-header spec function. Print a banner to say that the
8756 following output is from the assembler. */
8759 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
8760 const char **argv ATTRIBUTE_UNUSED)
8762 printf (_("Assembler options\n=================\n\n"));
8763 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8768 /* Compute a timestamp to initialize flag_random_seed. */
8771 get_local_tick (void)
8775 /* Get some more or less random data. */
8776 #ifdef HAVE_GETTIMEOFDAY
8780 gettimeofday (&tv, NULL);
8781 ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
8785 time_t now = time (NULL);
8787 if (now != (time_t)-1)
8788 ret = (unsigned) now;
8795 /* %:compare-debug-dump-opt spec function. Save the last argument,
8796 expected to be the last -fdump-final-insns option, or generate a
8800 compare_debug_dump_opt_spec_function (int arg,
8801 const char **argv ATTRIBUTE_UNUSED)
8806 static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
8809 fatal ("too many arguments to %%:compare-debug-dump-opt");
8811 do_spec_2 ("%{fdump-final-insns=*:%*}");
8812 do_spec_1 (" ", 0, NULL);
8814 if (argbuf_index > 0 && strcmp (argv[argbuf_index - 1], "."))
8819 name = xstrdup (argv[argbuf_index - 1]);
8824 const char *ext = NULL;
8826 if (argbuf_index > 0)
8828 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8831 else if (!compare_debug)
8834 do_spec_2 ("%g.gkd");
8836 do_spec_1 (" ", 0, NULL);
8838 gcc_assert (argbuf_index > 0);
8840 name = concat (argbuf[argbuf_index - 1], ext, NULL);
8842 ret = concat ("-fdump-final-insns=", name, NULL);
8845 which = compare_debug < 0;
8846 debug_check_temp_file[which] = name;
8850 unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
8852 sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
8856 ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
8865 static const char *debug_auxbase_opt;
8867 /* %:compare-debug-self-opt spec function. Expands to the options
8868 that are to be passed in the second compilation of
8872 compare_debug_self_opt_spec_function (int arg,
8873 const char **argv ATTRIBUTE_UNUSED)
8876 fatal ("too many arguments to %%:compare-debug-self-opt");
8878 if (compare_debug >= 0)
8881 do_spec_2 ("%{c|S:%{o*:%*}}");
8882 do_spec_1 (" ", 0, NULL);
8884 if (argbuf_index > 0)
8885 debug_auxbase_opt = concat ("-auxbase-strip ",
8886 argbuf[argbuf_index - 1],
8889 debug_auxbase_opt = NULL;
8892 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8893 %<fdump-final-insns=* -w -S -o %j \
8894 %{!fcompare-debug-second:-fcompare-debug-second} \
8895 ", compare_debug_opt, NULL);
8898 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8899 options that are to be passed in the second compilation of
8900 compare-debug. It expects, as an argument, the basename of the
8901 current input file name, with the .gk suffix appended to it. */
8904 compare_debug_auxbase_opt_spec_function (int arg,
8911 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8914 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8916 if (compare_debug >= 0)
8919 len = strlen (argv[0]);
8920 if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0)
8921 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8923 if (debug_auxbase_opt)
8924 return debug_auxbase_opt;
8926 #define OPT "-auxbase "
8929 name = (char*) xmalloc (sizeof (OPT) + len);
8930 memcpy (name, OPT, sizeof (OPT) - 1);
8931 memcpy (name + sizeof (OPT) - 1, argv[0], len);
8932 name[sizeof (OPT) - 1 + len] = '\0';