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,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 /* A Short Introduction to Adding a Command-Line Option.
35 Before adding a command-line option, consider if it is really
36 necessary. Each additional command-line option adds complexity and
37 is difficult to remove in subsequent versions.
39 In the following, consider adding the command-line argument
42 1. Each command-line option is specified in the specs file. The
43 notation is described below in the comment entitled "The Specs
46 2. In this file, add an entry to "option_map" equating the long
47 `--' argument version and any shorter, single letter version. Read
48 the comments in the declaration of "struct option_map" for an
49 explanation. Do not omit the first `-'.
51 3. Look in the "specs" file to determine which program or option
52 list should be given the argument, e.g., "cc1_options". Add the
53 appropriate syntax for the shorter option version to the
54 corresponding "const char *" entry in this file. Omit the first
55 `-' from the option. For example, use `-bar', rather than `--bar'.
57 4. If the argument takes an argument, e.g., `--baz argument1',
58 modify either DEFAULT_SWITCH_TAKES_ARG or
59 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
62 5. Document the option in this file's display_help(). If the
63 option is passed to a subprogram, modify its corresponding
64 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
67 6. Compile and test. Make sure that your new specs file is being
68 read. For example, use a debugger to investigate the value of
69 "specs_file" in main(). */
73 #include "coretypes.h"
74 #include "multilib.h" /* before tm.h */
77 #if ! defined( SIGCHLD ) && defined( SIGCLD )
78 # define SIGCHLD SIGCLD
89 # include <sys/mman.h>
91 /* This is on Solaris. */
92 # include <sys/types.h>
97 # define MAP_FAILED ((void *)-1)
100 /* By default there is no special suffix for target executables. */
101 /* FIXME: when autoconf is fixed, remove the host check - dj */
102 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
103 #define HAVE_TARGET_EXECUTABLE_SUFFIX
106 /* By default there is no special suffix for host executables. */
107 #ifdef HOST_EXECUTABLE_SUFFIX
108 #define HAVE_HOST_EXECUTABLE_SUFFIX
110 #define HOST_EXECUTABLE_SUFFIX ""
113 /* By default, the suffix for target object files is ".o". */
114 #ifdef TARGET_OBJECT_SUFFIX
115 #define HAVE_TARGET_OBJECT_SUFFIX
117 #define TARGET_OBJECT_SUFFIX ".o"
120 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
122 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
123 #ifndef LIBRARY_PATH_ENV
124 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
128 #define kill(p,s) raise(s)
131 /* If a stage of compilation returns an exit status >= 1,
132 compilation of that file ceases. */
134 #define MIN_FATAL_STATUS 1
136 /* Flag set by cppspec.c to 1. */
139 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
140 static bool at_file_supplied
;
142 /* Flag saying to pass the greatest exit code returned by a sub-process
143 to the calling program. */
144 static int pass_exit_codes
;
146 /* Definition of string containing the arguments given to configure. */
147 #include "configargs.h"
149 /* Flag saying to print the directories gcc will search through looking for
150 programs, libraries, etc. */
152 static int print_search_dirs
;
154 /* Flag saying to print the full filename of this file
155 as found through our usual search mechanism. */
157 static const char *print_file_name
= NULL
;
159 /* As print_file_name, but search for executable file. */
161 static const char *print_prog_name
= NULL
;
163 /* Flag saying to print the relative path we'd use to
164 find libgcc.a given the current compiler flags. */
166 static int print_multi_directory
;
168 static int print_sysroot
;
170 /* Flag saying to print the relative path we'd use to
171 find OS libraries given the current compiler flags. */
173 static int print_multi_os_directory
;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib
;
180 /* Flag saying to print the command line options understood by gcc and its
183 static int print_help_list
;
185 /* Flag saying to print the version of gcc and its sub-processes. */
187 static int print_version
;
189 /* Flag saying to print the sysroot suffix used for searching for
192 static int print_sysroot_headers_suffix
;
194 /* Flag indicating whether we should print the command and arguments */
196 static int verbose_flag
;
198 /* Flag indicating whether we should ONLY print the command and
199 arguments (like verbose_flag) without executing the command.
200 Displayed arguments are quoted so that the generated command
201 line is suitable for execution. This is intended for use in
202 shell scripts to capture the driver-generated command line. */
203 static int verbose_only_flag
;
205 /* Flag indicating how to print command line options of sub-processes. */
207 static int print_subprocess_help
;
209 /* Flag indicating whether we should report subprocess execution times
210 (if this is supported by the system - see pexecute.c). */
212 static int report_times
;
214 /* Whether we should report subprocess execution times to a file. */
216 FILE *report_times_to_file
= NULL
;
218 /* Nonzero means place this string before uses of /, so that include
219 and library files can be found in an alternate location. */
221 #ifdef TARGET_SYSTEM_ROOT
222 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
224 static const char *target_system_root
= 0;
227 /* Nonzero means pass the updated target_system_root to the compiler. */
229 static int target_system_root_changed
;
231 /* Nonzero means append this string to target_system_root. */
233 static const char *target_sysroot_suffix
= 0;
235 /* Nonzero means append this string to target_system_root for headers. */
237 static const char *target_sysroot_hdrs_suffix
= 0;
239 /* Nonzero means write "temp" files in source directory
240 and use the source file's name in them, and don't delete them. */
242 static enum save_temps
{
243 SAVE_TEMPS_NONE
, /* no -save-temps */
244 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
245 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
248 /* Output file to use to get the object directory for -save-temps=obj */
249 static char *save_temps_prefix
= 0;
250 static size_t save_temps_length
= 0;
252 /* Nonzero means pass multiple source files to the compiler at one time. */
254 static int combine_flag
= 0;
256 /* Nonzero means use pipes to communicate between subprocesses.
257 Overridden by either of the above two flags. */
259 static int use_pipes
;
261 /* The compiler version. */
263 static const char *compiler_version
;
265 /* The target version specified with -V */
267 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
269 /* The target machine specified with -b. */
271 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
273 /* Nonzero if cross-compiling.
274 When -b is used, the value comes from the `specs' file. */
276 #ifdef CROSS_DIRECTORY_STRUCTURE
277 static const char *cross_compile
= "1";
279 static const char *cross_compile
= "0";
282 #ifdef MODIFY_TARGET_NAME
284 /* Information on how to alter the target name based on a command-line
285 switch. The only case we support now is simply appending or deleting a
286 string to or from the end of the first part of the configuration name. */
288 enum add_del
{ADD
, DELETE
};
290 static const struct modify_target
292 const char *const sw
;
293 const enum add_del add_del
;
294 const char *const str
;
296 modify_target
[] = MODIFY_TARGET_NAME
;
299 /* The number of errors that have occurred; the link phase will not be
300 run if this is nonzero. */
301 static int error_count
= 0;
303 /* Greatest exit code of sub-processes that has been encountered up to
305 static int greatest_status
= 1;
307 /* This is the obstack which we use to allocate many strings. */
309 static struct obstack obstack
;
311 /* This is the obstack to build an environment variable to pass to
312 collect2 that describes all of the relevant switches of what to
313 pass the compiler in building the list of pointers to constructors
316 static struct obstack collect_obstack
;
318 /* This is a list of a wrapper program and its arguments.
319 e.g. wrapper_string of "strace,-c"
320 will cause all programs to run as
321 strace -c program arguments
324 static const char *wrapper_string
;
326 /* Forward declaration for prototypes. */
330 static void init_spec (void);
331 static void store_arg (const char *, int, int);
332 static void insert_wrapper (const char *);
333 static char *load_specs (const char *);
334 static void read_specs (const char *, int);
335 static void set_spec (const char *, const char *);
336 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
337 static char *build_search_list (const struct path_prefix
*, const char *,
339 static void xputenv (const char *);
340 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
342 static int access_check (const char *, int);
343 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
344 static void add_prefix (struct path_prefix
*, const char *, const char *,
346 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
347 const char *, int, int, int);
348 static void translate_options (int *, const char *const **);
349 static char *skip_whitespace (char *);
350 static void delete_if_ordinary (const char *);
351 static void delete_temp_files (void);
352 static void delete_failure_queue (void);
353 static void clear_failure_queue (void);
354 static int check_live_switch (int, int);
355 static const char *handle_braces (const char *);
356 static inline bool input_suffix_matches (const char *, const char *);
357 static inline bool switch_matches (const char *, const char *, int);
358 static inline void mark_matching_switches (const char *, const char *, int);
359 static inline void process_marked_switches (void);
360 static const char *process_brace_body (const char *, const char *, const char *, int, int);
361 static const struct spec_function
*lookup_spec_function (const char *);
362 static const char *eval_spec_function (const char *, const char *);
363 static const char *handle_spec_function (const char *);
364 static char *save_string (const char *, int);
365 static void set_collect_gcc_options (void);
366 static int do_spec_1 (const char *, int, const char *);
367 static int do_spec_2 (const char *);
368 static void do_option_spec (const char *, const char *);
369 static void do_self_spec (const char *);
370 static const char *find_file (const char *);
371 static int is_directory (const char *, bool);
372 static const char *validate_switches (const char *);
373 static void validate_all_switches (void);
374 static inline void validate_switches_from_spec (const char *);
375 static void give_switch (int, int);
376 static int used_arg (const char *, int);
377 static int default_arg (const char *, int);
378 static void set_multilib_dir (void);
379 static void print_multilib_info (void);
380 static void perror_with_name (const char *);
381 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
382 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
383 static void display_help (void);
384 static void add_preprocessor_option (const char *, int);
385 static void add_assembler_option (const char *, int);
386 static void add_linker_option (const char *, int);
387 static void process_command (int, const char **);
388 static int execute (void);
389 static void alloc_args (void);
390 static void clear_args (void);
391 static void fatal_error (int);
392 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
393 static void init_gcc_specs (struct obstack
*, const char *, const char *,
396 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
397 static const char *convert_filename (const char *, int, int);
400 static const char *getenv_spec_function (int, const char **);
401 static const char *if_exists_spec_function (int, const char **);
402 static const char *if_exists_else_spec_function (int, const char **);
403 static const char *replace_outfile_spec_function (int, const char **);
404 static const char *version_compare_spec_function (int, const char **);
405 static const char *include_spec_function (int, const char **);
406 static const char *print_asm_header_spec_function (int, const char **);
407 static const char *compare_debug_dump_opt_spec_function (int, const char **);
408 static const char *compare_debug_self_opt_spec_function (int, const char **);
409 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
411 /* The Specs Language
413 Specs are strings containing lines, each of which (if not blank)
414 is made up of a program name, and arguments separated by spaces.
415 The program name must be exact and start from root, since no path
416 is searched and it is unreliable to depend on the current working directory.
417 Redirection of input or output is not supported; the subprograms must
418 accept filenames saying what files to read and write.
420 In addition, the specs can contain %-sequences to substitute variable text
421 or for conditional text. Here is a table of all defined %-sequences.
422 Note that spaces are not generated automatically around the results of
423 expanding these sequences; therefore, you can concatenate them together
424 or with constant text in a single argument.
426 %% substitute one % into the program name or argument.
427 %i substitute the name of the input file being processed.
428 %b substitute the basename of the input file being processed.
429 This is the substring up to (and not including) the last period
430 and not including the directory unless -save-temps was specified
431 to put temporaries in a different location.
432 %B same as %b, but include the file suffix (text after the last period).
434 substitute a file name that has suffix SUFFIX and is chosen
435 once per compilation, and mark the argument a la %d. To reduce
436 exposure to denial-of-service attacks, the file name is now
437 chosen in a way that is hard to predict even when previously
438 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
439 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
440 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
441 had been pre-processed. Previously, %g was simply substituted
442 with a file name chosen once per compilation, without regard
443 to any appended suffix (which was therefore treated just like
444 ordinary text), making such attacks more likely to succeed.
446 like %g, but if -pipe is in effect, expands simply to "-".
448 like %g, but if -pipe is in effect, expands to nothing. (We have both
449 %| and %m to accommodate differences between system assemblers; see
450 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
452 like %g, but generates a new temporary file name even if %uSUFFIX
455 substitutes the last file name generated with %uSUFFIX, generating a
456 new one if there is no such last file name. In the absence of any
457 %uSUFFIX, this is just like %gSUFFIX, except they don't share
458 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
459 would involve the generation of two distinct file names, one
460 for each `%g.s' and another for each `%U.s'. Previously, %U was
461 simply substituted with a file name chosen for the previous %u,
462 without regard to any appended suffix.
464 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
465 writable, and if save-temps is off; otherwise, substitute the name
466 of a temporary file, just like %u. This temporary file is not
467 meant for communication between processes, but rather as a junk
470 substitutes .SUFFIX for the suffixes of a matched switch's args when
471 it is subsequently output with %*. SUFFIX is terminated by the next
473 %d marks the argument containing or following the %d as a
474 temporary file name, so that that file will be deleted if GCC exits
475 successfully. Unlike %g, this contributes no text to the argument.
476 %w marks the argument containing or following the %w as the
477 "output file" of this compilation. This puts the argument
478 into the sequence of arguments that %o will substitute later.
479 %V indicates that this compilation produces no "output file".
481 like %{...} but mark last argument supplied within
482 as a file to be deleted on failure.
483 %o substitutes the names of all the output files, with spaces
484 automatically placed around them. You should write spaces
485 around the %o as well or the results are undefined.
486 %o is for use in the specs for running the linker.
487 Input files whose names have no recognized suffix are not compiled
488 at all, but they are included among the output files, so they will
490 %O substitutes the suffix for object files. Note that this is
491 handled specially when it immediately follows %g, %u, or %U
492 (with or without a suffix argument) because of the need for
493 those to form complete file names. The handling is such that
494 %O is treated exactly as if it had already been substituted,
495 except that %g, %u, and %U do not currently support additional
496 SUFFIX characters following %O as they would following, for
498 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
499 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
500 and -B options) and -imultilib as necessary.
501 %s current argument is the name of a library or startup file of some sort.
502 Search for that file in a standard list of directories
503 and substitute the full name found.
504 %eSTR Print STR as an error message. STR is terminated by a newline.
505 Use this when inconsistent options are detected.
506 %nSTR Print STR as a notice. STR is terminated by a newline.
507 %x{OPTION} Accumulate an option for %X.
508 %X Output the accumulated linker options specified by compilations.
509 %Y Output the accumulated assembler options specified by compilations.
510 %Z Output the accumulated preprocessor options specified by compilations.
511 %a process ASM_SPEC as a spec.
512 This allows config.h to specify part of the spec for running as.
513 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
514 used here. This can be used to run a post-processor after the
515 assembler has done its job.
516 %D Dump out a -L option for each directory in startfile_prefixes.
517 If multilib_dir is set, extra entries are generated with it affixed.
518 %l process LINK_SPEC as a spec.
519 %L process LIB_SPEC as a spec.
520 %G process LIBGCC_SPEC as a spec.
521 %R Output the concatenation of target_system_root and
522 target_sysroot_suffix.
523 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
524 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
525 %C process CPP_SPEC as a spec.
526 %1 process CC1_SPEC as a spec.
527 %2 process CC1PLUS_SPEC as a spec.
528 %* substitute the variable part of a matched option. (See below.)
529 Note that each comma in the substituted string is replaced by
531 %<S remove all occurrences of -S from the command line.
532 Note - this command is position dependent. % commands in the
533 spec string before this one will see -S, % commands in the
534 spec string after this one will not.
535 %<S* remove all occurrences of all switches beginning with -S from the
538 Call the named function FUNCTION, passing it ARGS. ARGS is
539 first processed as a nested spec string, then split into an
540 argument vector in the usual fashion. The function returns
541 a string which is processed as if it had appeared literally
542 as part of the current spec.
543 %{S} substitutes the -S switch, if that switch was given to GCC.
544 If that switch was not specified, this substitutes nothing.
545 Here S is a metasyntactic variable.
546 %{S*} substitutes all the switches specified to GCC whose names start
547 with -S. This is used for -o, -I, etc; switches that take
548 arguments. GCC considers `-o foo' as being one switch whose
549 name starts with `o'. %{o*} would substitute this text,
550 including the space; thus, two arguments would be generated.
551 %{S*&T*} likewise, but preserve order of S and T options (the order
552 of S and T in the spec is not significant). Can be any number
553 of ampersand-separated variables; for each the wild card is
554 optional. Useful for CPP as %{D*&U*&A*}.
556 %{S:X} substitutes X, if the -S switch was given to GCC.
557 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
558 %{S*:X} substitutes X if one or more switches whose names start
559 with -S was given to GCC. Normally X is substituted only
560 once, no matter how many such switches appeared. However,
561 if %* appears somewhere in X, then X will be substituted
562 once for each matching switch, with the %* replaced by the
563 part of that switch that matched the '*'.
564 %{.S:X} substitutes X, if processing a file with suffix S.
565 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
566 %{,S:X} substitutes X, if processing a file which will use spec S.
567 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
569 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
570 combined with '!', '.', ',', and '*' as above binding stronger
572 If %* appears in X, all of the alternatives must be starred, and
573 only the first matching alternative is substituted.
574 %{S:X; if S was given to GCC, substitutes X;
575 T:Y; else if T was given to GCC, substitutes Y;
576 :D} else substitutes D. There can be as many clauses as you need.
577 This may be combined with '.', '!', ',', '|', and '*' as above.
579 %(Spec) processes a specification defined in a specs file as *Spec:
580 %[Spec] as above, but put __ around -D arguments
582 The conditional text X in a %{S:X} or similar construct may contain
583 other nested % constructs or spaces, or even newlines. They are
584 processed as usual, as described above. Trailing white space in X is
585 ignored. White space may also appear anywhere on the left side of the
586 colon in these constructs, except between . or * and the corresponding
589 The -O, -f, -m, and -W switches are handled specifically in these
590 constructs. If another value of -O or the negated form of a -f, -m, or
591 -W switch is found later in the command line, the earlier switch
592 value is ignored, except with {S*} where S is just one letter; this
593 passes all matching options.
595 The character | at the beginning of the predicate text is used to indicate
596 that a command should be piped to the following command, but only if -pipe
599 Note that it is built into GCC which switches take arguments and which
600 do not. You might think it would be useful to generalize this to
601 allow each compiler's spec to say which switches take arguments. But
602 this cannot be done in a consistent fashion. GCC cannot even decide
603 which input files have been specified without knowing which switches
604 take arguments, and it must know which input files to compile in order
605 to tell which compilers to run.
607 GCC also knows implicitly that arguments starting in `-l' are to be
608 treated as compiler output files, and passed to the linker in their
609 proper position among the other output files. */
611 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
613 /* config.h can define ASM_SPEC to provide extra args to the assembler
614 or extra switch-translations. */
619 /* config.h can define ASM_FINAL_SPEC to run a post processor after
620 the assembler has run. */
621 #ifndef ASM_FINAL_SPEC
622 #define ASM_FINAL_SPEC ""
625 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
626 or extra switch-translations. */
631 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
632 or extra switch-translations. */
637 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
638 or extra switch-translations. */
640 #define CC1PLUS_SPEC ""
643 /* config.h can define LINK_SPEC to provide extra args to the linker
644 or extra switch-translations. */
649 /* config.h can define LIB_SPEC to override the default libraries. */
651 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
656 /* XXX: valid only for GNU ld */
657 /* XXX: should exactly match hooks provided by libmudflap.a */
658 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
659 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
660 --wrap=mmap --wrap=munmap --wrap=alloca\
661 } %{fmudflapth: --wrap=pthread_create\
662 }} %{fmudflap|fmudflapth: --wrap=main}"
665 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
668 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
671 #if defined(REAL_LIBGCC_SPEC)
672 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
673 #elif defined(LINK_LIBGCC_SPECIAL_1)
674 /* Have gcc do the search for libgcc.a. */
675 #define LIBGCC_SPEC "libgcc.a%s"
677 #define LIBGCC_SPEC "-lgcc"
681 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
682 #ifndef STARTFILE_SPEC
683 #define STARTFILE_SPEC \
684 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
687 /* config.h can define SWITCHES_NEED_SPACES to control which options
688 require spaces between the option and the argument.
690 We define SWITCHES_NEED_SPACES to include "o" by default. This
691 causes "-ofoo.o" to be split into "-o foo.o" during the initial
692 processing of the command-line, before being seen by the specs
693 machinery. This makes sure we record "foo.o" as the temporary file
694 to be deleted in the case of error, rather than "-ofoo.o". */
695 #ifndef SWITCHES_NEED_SPACES
696 #define SWITCHES_NEED_SPACES "o"
699 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
701 #define ENDFILE_SPEC ""
705 #define LINKER_NAME "collect2"
708 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
709 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
714 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
716 #ifndef ASM_DEBUG_SPEC
717 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
718 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
719 # define ASM_DEBUG_SPEC \
720 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
721 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
722 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
724 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
725 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
727 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
728 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
732 #ifndef ASM_DEBUG_SPEC
733 # define ASM_DEBUG_SPEC ""
736 /* Here is the spec for running the linker, after compiling all files. */
738 /* This is overridable by the target in case they need to specify the
739 -lgcc and -lc order specially, yet not require them to override all
740 of LINK_COMMAND_SPEC. */
741 #ifndef LINK_GCC_C_SEQUENCE_SPEC
742 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
745 #ifndef LINK_SSP_SPEC
746 #ifdef TARGET_LIBC_PROVIDES_SSP
747 #define LINK_SSP_SPEC "%{fstack-protector:}"
749 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
753 #ifndef LINK_PIE_SPEC
755 #define LINK_PIE_SPEC "%{pie:-pie} "
757 #define LINK_PIE_SPEC "%{pie:} "
761 #ifndef LINK_BUILDID_SPEC
762 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
763 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
768 /* -u* was put back because both BSD and SysV seem to support it. */
769 /* %{static:} simply prevents an error message if the target machine
770 doesn't handle -static. */
771 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
772 scripts which exist in user specified directories, or in standard
774 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
775 to understand them. In practice, this means it had better be collect2. */
776 #ifndef LINK_COMMAND_SPEC
777 #define LINK_COMMAND_SPEC "\
778 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
780 %{fuse-linker-plugin: \
781 -plugin %(linker_plugin_file) \
782 -plugin-opt=%(lto_wrapper) \
783 -plugin-opt=%(lto_gcc) \
784 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
785 %{static:-plugin-opt=-pass-through=-lc} \
786 %{O*:-plugin-opt=-O%*} \
787 %{w:-plugin-opt=-w} \
788 %{f*:-plugin-opt=-f%*} \
789 %{m*:-plugin-opt=-m%*} \
790 %{v:-plugin-opt=-v} \
792 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
793 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
794 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
795 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
796 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
797 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
798 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
799 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
802 #ifndef LINK_LIBGCC_SPEC
803 /* Generate -L options for startfile prefix list. */
804 # define LINK_LIBGCC_SPEC "%D"
807 #ifndef STARTFILE_PREFIX_SPEC
808 # define STARTFILE_PREFIX_SPEC ""
812 # define SYSROOT_SPEC "--sysroot=%R"
815 #ifndef SYSROOT_SUFFIX_SPEC
816 # define SYSROOT_SUFFIX_SPEC ""
819 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
820 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
823 static const char *asm_debug
;
824 static const char *cpp_spec
= CPP_SPEC
;
825 static const char *cc1_spec
= CC1_SPEC
;
826 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
827 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
828 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
829 static const char *asm_spec
= ASM_SPEC
;
830 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
831 static const char *link_spec
= LINK_SPEC
;
832 static const char *lib_spec
= LIB_SPEC
;
833 static const char *mfwrap_spec
= MFWRAP_SPEC
;
834 static const char *mflib_spec
= MFLIB_SPEC
;
835 static const char *link_gomp_spec
= "";
836 static const char *libgcc_spec
= LIBGCC_SPEC
;
837 static const char *endfile_spec
= ENDFILE_SPEC
;
838 static const char *startfile_spec
= STARTFILE_SPEC
;
839 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
840 static const char *linker_name_spec
= LINKER_NAME
;
841 static const char *linker_plugin_file_spec
= "";
842 static const char *lto_wrapper_spec
= "";
843 static const char *lto_gcc_spec
= "";
844 static const char *lto_libgcc_spec
= "";
845 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
846 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
847 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
848 static const char *sysroot_spec
= SYSROOT_SPEC
;
849 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
850 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
852 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
853 There should be no need to override these in target dependent files,
854 but we need to copy them to the specs file so that newer versions
855 of the GCC driver can correctly drive older tool chains with the
856 appropriate -B options. */
858 /* When cpplib handles traditional preprocessing, get rid of this, and
859 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
860 that we default the front end language better. */
861 static const char *trad_capable_cpp
=
862 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
864 /* We don't wrap .d files in %W{} since a missing .d file, and
865 therefore no dependency entry, confuses make into thinking a .o
866 file that happens to exist is up-to-date. */
867 static const char *cpp_unique_options
=
868 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
869 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
870 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
871 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
872 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
873 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
874 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
875 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
876 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
877 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
880 /* This contains cpp options which are common with cc1_options and are passed
881 only when preprocessing only to avoid duplication. We pass the cc1 spec
882 options to the preprocessor so that it the cc1 spec may manipulate
883 options used to set target flags. Those special target flags settings may
884 in turn cause preprocessor symbols to be defined specially. */
885 static const char *cpp_options
=
886 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
887 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
888 %{undef} %{save-temps*:-fpch-preprocess}";
890 /* This contains cpp options which are not passed when the preprocessor
891 output will be used by another program. */
892 static const char *cpp_debug_options
= "%{d*}";
894 /* NB: This is shared amongst all front-ends, except for Ada. */
895 static const char *cc1_options
=
896 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
897 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{a*}\
898 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
899 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
900 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
901 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
902 %{Qn:-fno-ident} %{--help:--help}\
903 %{--target-help:--target-help}\
904 %{--help=*:--help=%(VALUE)}\
905 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
906 %{fsyntax-only:-o %j} %{-param*}\
907 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
908 %{coverage:-fprofile-arcs -ftest-coverage}";
910 static const char *asm_options
=
911 "%{--target-help:%:print-asm-header()} "
913 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
914 to the assembler equivalents. */
915 "%{v} %{w:-W} %{I*} "
917 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
919 static const char *invoke_as
=
920 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
922 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
923 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
927 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
928 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
932 /* Some compilers have limits on line lengths, and the multilib_select
933 and/or multilib_matches strings can be very long, so we build them at
935 static struct obstack multilib_obstack
;
936 static const char *multilib_select
;
937 static const char *multilib_matches
;
938 static const char *multilib_defaults
;
939 static const char *multilib_exclusions
;
941 /* Check whether a particular argument is a default argument. */
943 #ifndef MULTILIB_DEFAULTS
944 #define MULTILIB_DEFAULTS { "" }
947 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
949 #ifndef DRIVER_SELF_SPECS
950 #define DRIVER_SELF_SPECS ""
953 /* Adding -fopenmp should imply pthreads. This is particularly important
954 for targets that use different start files and suchlike. */
955 #ifndef GOMP_SELF_SPECS
956 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
959 static const char *const driver_self_specs
[] = {
960 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
961 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
964 #ifndef OPTION_DEFAULT_SPECS
965 #define OPTION_DEFAULT_SPECS { "", "" }
974 static const struct default_spec
975 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
979 struct user_specs
*next
;
980 const char *filename
;
983 static struct user_specs
*user_specs_head
, *user_specs_tail
;
985 #ifndef SWITCH_TAKES_ARG
986 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
989 #ifndef WORD_SWITCH_TAKES_ARG
990 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
993 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
994 /* This defines which switches stop a full compilation. */
995 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
996 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
998 #ifndef SWITCH_CURTAILS_COMPILATION
999 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
1000 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1004 /* Record the mapping from file suffixes for compilation specs. */
1008 const char *suffix
; /* Use this compiler for input files
1009 whose names end in this suffix. */
1011 const char *spec
; /* To use this compiler, run this spec. */
1013 const char *cpp_spec
; /* If non-NULL, substitute this spec
1014 for `%C', rather than the usual
1016 const int combinable
; /* If nonzero, compiler can deal with
1017 multiple source files at once (IMA). */
1018 const int needs_preprocessing
; /* If nonzero, source files need to
1019 be run through a preprocessor. */
1022 /* Pointer to a vector of `struct compiler' that gives the spec for
1023 compiling a file, based on its suffix.
1024 A file that does not end in any of these suffixes will be passed
1025 unchanged to the loader and nothing else will be done to it.
1027 An entry containing two 0s is used to terminate the vector.
1029 If multiple entries match a file, the last matching one is used. */
1031 static struct compiler
*compilers
;
1033 /* Number of entries in `compilers', not counting the null terminator. */
1035 static int n_compilers
;
1037 /* The default list of file name suffixes and their compilation specs. */
1039 static const struct compiler default_compilers
[] =
1041 /* Add lists of suffixes of known languages here. If those languages
1042 were not present when we built the driver, we will hit these copies
1043 and be given a more meaningful error than "file not used since
1044 linking is not done". */
1045 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1046 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1047 {".mii", "#Objective-C++", 0, 0, 0},
1048 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1049 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1050 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1051 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1052 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1053 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1054 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1055 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1056 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1057 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1058 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1059 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1060 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1061 {".r", "#Ratfor", 0, 0, 0},
1062 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1063 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1064 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1065 /* Next come the entries for C. */
1066 {".c", "@c", 0, 1, 1},
1068 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1069 external preprocessor if -save-temps is given. */
1070 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1072 %{traditional|ftraditional:\
1073 %eGNU C no longer supports -traditional without -E}\
1075 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1076 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1077 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1079 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1080 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1081 %{!fsyntax-only:%(invoke_as)}} \
1083 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1084 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1085 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1086 cc1 %(cpp_unique_options) %(cc1_options)}}\
1087 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1089 "%{!E:%e-E or -x required when input is from standard input}\
1090 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1091 {".h", "@c-header", 0, 0, 0},
1093 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1094 external preprocessor if -save-temps is given. */
1095 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1097 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1098 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1099 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1101 -o %g.s %{!o*:--output-pch=%i.gch}\
1102 %W{o*:--output-pch=%*}%V}\
1103 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1104 cc1 %(cpp_unique_options) %(cc1_options)\
1105 -o %g.s %{!o*:--output-pch=%i.gch}\
1106 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1107 {".i", "@cpp-output", 0, 1, 0},
1109 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1110 {".s", "@assembler", 0, 1, 0},
1112 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1113 {".sx", "@assembler-with-cpp", 0, 1, 0},
1114 {".S", "@assembler-with-cpp", 0, 1, 0},
1115 {"@assembler-with-cpp",
1116 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1117 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1118 %{E|M|MM:%(cpp_debug_options)}\
1119 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1120 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1122 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1123 %{E|M|MM:%(cpp_debug_options)}\
1124 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1125 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1130 /* Mark end of table. */
1134 /* Number of elements in default_compilers, not counting the terminator. */
1136 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1138 /* A vector of options to give to the linker.
1139 These options are accumulated by %x,
1140 and substituted into the linker command with %X. */
1141 static int n_linker_options
;
1142 static char **linker_options
;
1144 /* A vector of options to give to the assembler.
1145 These options are accumulated by -Wa,
1146 and substituted into the assembler command with %Y. */
1147 static int n_assembler_options
;
1148 static char **assembler_options
;
1150 /* A vector of options to give to the preprocessor.
1151 These options are accumulated by -Wp,
1152 and substituted into the preprocessor command with %Z. */
1153 static int n_preprocessor_options
;
1154 static char **preprocessor_options
;
1156 /* Define how to map long options into short ones. */
1158 /* This structure describes one mapping. */
1161 /* The long option's name. */
1162 const char *const name
;
1163 /* The equivalent short option. */
1164 const char *const equivalent
;
1165 /* Argument info. A string of flag chars; NULL equals no options.
1166 a => argument required.
1167 o => argument optional.
1168 j => join argument to equivalent, making one word.
1169 * => require other text after NAME as an argument. */
1170 const char *const arg_info
;
1173 /* This is the table of mappings. Mappings are tried sequentially
1174 for each option encountered; the first one that matches, wins. */
1176 static const struct option_map option_map
[] =
1178 {"--all-warnings", "-Wall", 0},
1179 {"--ansi", "-ansi", 0},
1180 {"--assemble", "-S", 0},
1181 {"--assert", "-A", "a"},
1182 {"--classpath", "-fclasspath=", "aj"},
1183 {"--bootclasspath", "-fbootclasspath=", "aj"},
1184 {"--CLASSPATH", "-fclasspath=", "aj"},
1185 {"--combine", "-combine", 0},
1186 {"--comments", "-C", 0},
1187 {"--comments-in-macros", "-CC", 0},
1188 {"--compile", "-c", 0},
1189 {"--debug", "-g", "oj"},
1190 {"--define-macro", "-D", "aj"},
1191 {"--dependencies", "-M", 0},
1192 {"--dump", "-d", "a"},
1193 {"--dumpbase", "-dumpbase", "a"},
1194 {"--dumpdir", "-dumpdir", "a"},
1195 {"--encoding", "-fencoding=", "aj"},
1196 {"--entry", "-e", 0},
1197 {"--extra-warnings", "-W", 0},
1198 {"--extdirs", "-fextdirs=", "aj"},
1199 {"--for-assembler", "-Wa", "a"},
1200 {"--for-linker", "-Xlinker", "a"},
1201 {"--force-link", "-u", "a"},
1202 {"--coverage", "-coverage", 0},
1203 {"--imacros", "-imacros", "a"},
1204 {"--include", "-include", "a"},
1205 {"--include-barrier", "-I-", 0},
1206 {"--include-directory", "-I", "aj"},
1207 {"--include-directory-after", "-idirafter", "a"},
1208 {"--include-prefix", "-iprefix", "a"},
1209 {"--include-with-prefix", "-iwithprefix", "a"},
1210 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1211 {"--include-with-prefix-after", "-iwithprefix", "a"},
1212 {"--language", "-x", "a"},
1213 {"--library-directory", "-L", "a"},
1214 {"--machine", "-m", "aj"},
1215 {"--machine-", "-m", "*j"},
1216 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1217 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1218 {"--no-line-commands", "-P", 0},
1219 {"--no-precompiled-includes", "-noprecomp", 0},
1220 {"--no-standard-includes", "-nostdinc", 0},
1221 {"--no-standard-libraries", "-nostdlib", 0},
1222 {"--no-warnings", "-w", 0},
1223 {"--optimize", "-O", "oj"},
1224 {"--output", "-o", "a"},
1225 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1226 {"--param", "--param", "a"},
1227 {"--pass-exit-codes", "-pass-exit-codes", 0},
1228 {"--pedantic", "-pedantic", 0},
1229 {"--pedantic-errors", "-pedantic-errors", 0},
1230 {"--pie", "-pie", 0},
1231 {"--pipe", "-pipe", 0},
1232 {"--prefix", "-B", "a"},
1233 {"--preprocess", "-E", 0},
1234 {"--print-search-dirs", "-print-search-dirs", 0},
1235 {"--print-file-name", "-print-file-name=", "aj"},
1236 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1237 {"--print-missing-file-dependencies", "-MG", 0},
1238 {"--print-multi-lib", "-print-multi-lib", 0},
1239 {"--print-multi-directory", "-print-multi-directory", 0},
1240 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1241 {"--print-prog-name", "-print-prog-name=", "aj"},
1242 {"--print-sysroot", "-print-sysroot", 0},
1243 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1244 {"--profile", "-p", 0},
1245 {"--profile-blocks", "-a", 0},
1246 {"--quiet", "-q", 0},
1247 {"--resource", "-fcompile-resource=", "aj"},
1248 {"--save-temps", "-save-temps", 0},
1249 {"--shared", "-shared", 0},
1250 {"--silent", "-q", 0},
1251 {"--specs", "-specs=", "aj"},
1252 {"--static", "-static", 0},
1253 {"--std", "-std=", "aj"},
1254 {"--symbolic", "-symbolic", 0},
1255 {"--sysroot", "--sysroot=", "aj"},
1256 {"--time", "-time", 0},
1257 {"--trace-includes", "-H", 0},
1258 {"--traditional", "-traditional", 0},
1259 {"--traditional-cpp", "-traditional-cpp", 0},
1260 {"--trigraphs", "-trigraphs", 0},
1261 {"--undefine-macro", "-U", "aj"},
1262 {"--user-dependencies", "-MM", 0},
1263 {"--verbose", "-v", 0},
1264 {"--warn-", "-W", "*j"},
1265 {"--write-dependencies", "-MD", 0},
1266 {"--write-user-dependencies", "-MMD", 0},
1271 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1272 static const struct {
1273 const char *const option_found
;
1274 const char *const replacements
;
1275 } target_option_translations
[] =
1277 TARGET_OPTION_TRANSLATE_TABLE
,
1282 /* Translate the options described by *ARGCP and *ARGVP.
1283 Make a new vector and store it back in *ARGVP,
1284 and store its length in *ARGCP. */
1287 translate_options (int *argcp
, const char *const **argvp
)
1291 const char *const *argv
= *argvp
;
1292 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1293 const char **newv
= XNEWVAR (const char *, newvsize
);
1297 newv
[newindex
++] = argv
[i
++];
1301 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1305 target_option_translations
[tott_idx
].option_found
;
1308 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1315 for (sp
= target_option_translations
[tott_idx
].replacements
;
1322 newvsize
+= spaces
* sizeof (const char *);
1323 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1325 sp
= target_option_translations
[tott_idx
].replacements
;
1334 newv
[newindex
++] = np
;
1335 while (*np
!= ' ' && *np
)
1346 if (target_option_translations
[tott_idx
].option_found
)
1350 /* Translate -- options. */
1351 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1354 /* Find a mapping that applies to this option. */
1355 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1357 size_t optlen
= strlen (option_map
[j
].name
);
1358 size_t arglen
= strlen (argv
[i
]);
1359 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1360 const char *arginfo
= option_map
[j
].arg_info
;
1365 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1367 const char *arg
= 0;
1369 if (arglen
< optlen
)
1372 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1373 if (strlen (option_map
[k
].name
) >= arglen
1374 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1376 error ("ambiguous abbreviation %s", argv
[i
]);
1380 if (k
!= ARRAY_SIZE (option_map
))
1384 if (arglen
> optlen
)
1386 /* If the option has an argument, accept that. */
1387 if (argv
[i
][optlen
] == '=')
1388 arg
= argv
[i
] + optlen
+ 1;
1390 /* If this mapping requires extra text at end of name,
1391 accept that as "argument". */
1392 else if (strchr (arginfo
, '*') != 0)
1393 arg
= argv
[i
] + optlen
;
1395 /* Otherwise, extra text at end means mismatch.
1396 Try other mappings. */
1401 else if (strchr (arginfo
, '*') != 0)
1403 error ("incomplete '%s' option", option_map
[j
].name
);
1407 /* Handle arguments. */
1408 if (strchr (arginfo
, 'a') != 0)
1414 error ("missing argument to '%s' option",
1415 option_map
[j
].name
);
1422 else if (strchr (arginfo
, '*') != 0)
1424 else if (strchr (arginfo
, 'o') == 0)
1427 error ("extraneous argument to '%s' option",
1428 option_map
[j
].name
);
1432 /* Store the translation as one argv elt or as two. */
1433 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1434 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1438 newv
[newindex
++] = option_map
[j
].equivalent
;
1439 newv
[newindex
++] = arg
;
1442 newv
[newindex
++] = option_map
[j
].equivalent
;
1450 /* Handle old-fashioned options--just copy them through,
1451 with their arguments. */
1452 else if (argv
[i
][0] == '-')
1454 const char *p
= argv
[i
] + 1;
1458 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1459 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1460 else if (WORD_SWITCH_TAKES_ARG (p
))
1461 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1462 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1465 else if (! strcmp (p
, "Xlinker"))
1467 else if (! strcmp (p
, "Xpreprocessor"))
1469 else if (! strcmp (p
, "Xassembler"))
1472 /* Watch out for an option at the end of the command line that
1473 is missing arguments, and avoid skipping past the end of the
1475 if (nskip
+ i
> argc
)
1480 newv
[newindex
++] = argv
[i
++];
1485 /* Ordinary operands, or +e options. */
1486 newv
[newindex
++] = argv
[i
++];
1496 skip_whitespace (char *p
)
1500 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1501 be considered whitespace. */
1502 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1504 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1518 /* Structures to keep track of prefixes to try when looking for files. */
1522 const char *prefix
; /* String to prepend to the path. */
1523 struct prefix_list
*next
; /* Next in linked list. */
1524 int require_machine_suffix
; /* Don't use without machine_suffix. */
1525 /* 2 means try both machine_suffix and just_machine_suffix. */
1526 int priority
; /* Sort key - priority within list. */
1527 int os_multilib
; /* 1 if OS multilib scheme should be used,
1528 0 for GCC multilib scheme. */
1533 struct prefix_list
*plist
; /* List of prefixes to try */
1534 int max_len
; /* Max length of a prefix in PLIST */
1535 const char *name
; /* Name of this list (used in config stuff) */
1538 /* List of prefixes to try when looking for executables. */
1540 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1542 /* List of prefixes to try when looking for startup (crt0) files. */
1544 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1546 /* List of prefixes to try when looking for include files. */
1548 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1550 /* Suffix to attach to directories searched for commands.
1551 This looks like `MACHINE/VERSION/'. */
1553 static const char *machine_suffix
= 0;
1555 /* Suffix to attach to directories searched for commands.
1556 This is just `MACHINE/'. */
1558 static const char *just_machine_suffix
= 0;
1560 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1562 static const char *gcc_exec_prefix
;
1564 /* Adjusted value of standard_libexec_prefix. */
1566 static const char *gcc_libexec_prefix
;
1568 /* Default prefixes to attach to command names. */
1570 #ifndef STANDARD_STARTFILE_PREFIX_1
1571 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1573 #ifndef STANDARD_STARTFILE_PREFIX_2
1574 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1577 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1578 #undef MD_EXEC_PREFIX
1579 #undef MD_STARTFILE_PREFIX
1580 #undef MD_STARTFILE_PREFIX_1
1583 /* If no prefixes defined, use the null string, which will disable them. */
1584 #ifndef MD_EXEC_PREFIX
1585 #define MD_EXEC_PREFIX ""
1587 #ifndef MD_STARTFILE_PREFIX
1588 #define MD_STARTFILE_PREFIX ""
1590 #ifndef MD_STARTFILE_PREFIX_1
1591 #define MD_STARTFILE_PREFIX_1 ""
1594 /* These directories are locations set at configure-time based on the
1595 --prefix option provided to configure. Their initializers are
1596 defined in Makefile.in. These paths are not *directly* used when
1597 gcc_exec_prefix is set because, in that case, we know where the
1598 compiler has been installed, and use paths relative to that
1599 location instead. */
1600 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1601 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1602 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1603 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1605 /* For native compilers, these are well-known paths containing
1606 components that may be provided by the system. For cross
1607 compilers, these paths are not used. */
1608 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1609 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1610 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1611 static const char *const standard_startfile_prefix_1
1612 = STANDARD_STARTFILE_PREFIX_1
;
1613 static const char *const standard_startfile_prefix_2
1614 = STANDARD_STARTFILE_PREFIX_2
;
1616 /* A relative path to be used in finding the location of tools
1617 relative to the driver. */
1618 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1620 /* Subdirectory to use for locating libraries. Set by
1621 set_multilib_dir based on the compilation options. */
1623 static const char *multilib_dir
;
1625 /* Subdirectory to use for locating libraries in OS conventions. Set by
1626 set_multilib_dir based on the compilation options. */
1628 static const char *multilib_os_dir
;
1630 /* Structure to keep track of the specs that have been defined so far.
1631 These are accessed using %(specname) or %[specname] in a compiler
1636 /* The following 2 fields must be first */
1637 /* to allow EXTRA_SPECS to be initialized */
1638 const char *name
; /* name of the spec. */
1639 const char *ptr
; /* available ptr if no static pointer */
1641 /* The following fields are not initialized */
1642 /* by EXTRA_SPECS */
1643 const char **ptr_spec
; /* pointer to the spec itself. */
1644 struct spec_list
*next
; /* Next spec in linked list. */
1645 int name_len
; /* length of the name */
1646 int alloc_p
; /* whether string was allocated */
1649 #define INIT_STATIC_SPEC(NAME,PTR) \
1650 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1652 /* List of statically defined specs. */
1653 static struct spec_list static_specs
[] =
1655 INIT_STATIC_SPEC ("asm", &asm_spec
),
1656 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1657 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1658 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1659 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1660 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1661 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1662 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1663 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1664 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1665 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1666 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1667 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1668 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1669 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1670 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1671 INIT_STATIC_SPEC ("link", &link_spec
),
1672 INIT_STATIC_SPEC ("lib", &lib_spec
),
1673 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1674 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1675 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1676 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1677 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1678 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1679 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1680 INIT_STATIC_SPEC ("version", &compiler_version
),
1681 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1682 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1683 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1684 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1685 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1686 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1687 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1688 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1689 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1690 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1691 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1692 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1693 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1694 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1695 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1696 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1697 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1698 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1699 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1702 #ifdef EXTRA_SPECS /* additional specs needed */
1703 /* Structure to keep track of just the first two args of a spec_list.
1704 That is all that the EXTRA_SPECS macro gives us. */
1707 const char *const name
;
1708 const char *const ptr
;
1711 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1712 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1715 /* List of dynamically allocates specs that have been defined so far. */
1717 static struct spec_list
*specs
= (struct spec_list
*) 0;
1719 /* List of static spec functions. */
1721 static const struct spec_function static_spec_functions
[] =
1723 { "getenv", getenv_spec_function
},
1724 { "if-exists", if_exists_spec_function
},
1725 { "if-exists-else", if_exists_else_spec_function
},
1726 { "replace-outfile", replace_outfile_spec_function
},
1727 { "version-compare", version_compare_spec_function
},
1728 { "include", include_spec_function
},
1729 { "print-asm-header", print_asm_header_spec_function
},
1730 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1731 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1732 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1733 #ifdef EXTRA_SPEC_FUNCTIONS
1734 EXTRA_SPEC_FUNCTIONS
1739 static int processing_spec_function
;
1741 /* Add appropriate libgcc specs to OBSTACK, taking into account
1742 various permutations of -shared-libgcc, -shared, and such. */
1744 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1746 #ifndef USE_LD_AS_NEEDED
1747 #define USE_LD_AS_NEEDED 0
1751 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1752 const char *static_name
, const char *eh_name
)
1756 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1757 "%{!static:%{!static-libgcc:"
1758 #if USE_LD_AS_NEEDED
1759 "%{!shared-libgcc:",
1760 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1763 shared_name
, "%{!shared: ", static_name
, "}"
1767 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1768 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1772 "%{shared-libgcc:", shared_name
, "}"
1773 "%{!shared-libgcc:", static_name
, "}"
1776 "%{shared:", shared_name
, "}"
1781 obstack_grow (obstack
, buf
, strlen (buf
));
1784 #endif /* ENABLE_SHARED_LIBGCC */
1786 /* Initialize the specs lookup routines. */
1791 struct spec_list
*next
= (struct spec_list
*) 0;
1792 struct spec_list
*sl
= (struct spec_list
*) 0;
1796 return; /* Already initialized. */
1799 notice ("Using built-in specs.\n");
1802 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1804 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1806 sl
= &extra_specs
[i
];
1807 sl
->name
= extra_specs_1
[i
].name
;
1808 sl
->ptr
= extra_specs_1
[i
].ptr
;
1810 sl
->name_len
= strlen (sl
->name
);
1811 sl
->ptr_spec
= &sl
->ptr
;
1816 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1818 sl
= &static_specs
[i
];
1823 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1824 /* ??? If neither -shared-libgcc nor --static-libgcc was
1825 seen, then we should be making an educated guess. Some proposed
1826 heuristics for ELF include:
1828 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1829 program will be doing dynamic loading, which will likely
1830 need the shared libgcc.
1832 (2) If "-ldl", then it's also a fair bet that we're doing
1835 (3) For each ET_DYN we're linking against (either through -lfoo
1836 or /some/path/foo.so), check to see whether it or one of
1837 its dependencies depends on a shared libgcc.
1841 If the runtime is fixed to look for program headers instead
1842 of calling __register_frame_info at all, for each object,
1843 use the shared libgcc if any EH symbol referenced.
1845 If crtstuff is fixed to not invoke __register_frame_info
1846 automatically, for each object, use the shared libgcc if
1847 any non-empty unwind section found.
1849 Doing any of this probably requires invoking an external program to
1850 do the actual object file scanning. */
1852 const char *p
= libgcc_spec
;
1855 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1856 when given the proper command line arguments. */
1859 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1861 init_gcc_specs (&obstack
,
1863 #ifdef USE_LIBUNWIND_EXCEPTIONS
1869 #ifdef USE_LIBUNWIND_EXCEPTIONS
1870 # ifdef HAVE_LD_STATIC_DYNAMIC
1871 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1881 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1883 /* Ug. We don't know shared library extensions. Hope that
1884 systems that use this form don't do shared libraries. */
1885 init_gcc_specs (&obstack
,
1889 #ifdef USE_LIBUNWIND_EXCEPTIONS
1898 obstack_1grow (&obstack
, *p
);
1899 in_sep
= (*p
== ' ');
1904 obstack_1grow (&obstack
, '\0');
1905 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1908 #ifdef USE_AS_TRADITIONAL_FORMAT
1909 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1911 static const char tf
[] = "--traditional-format ";
1912 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1913 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1914 asm_spec
= XOBFINISH (&obstack
, const char *);
1918 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1919 # ifdef LINK_BUILDID_SPEC
1920 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1921 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1923 # ifdef LINK_EH_SPEC
1924 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1925 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1927 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1928 link_spec
= XOBFINISH (&obstack
, const char *);
1934 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1935 removed; If the spec starts with a + then SPEC is added to the end of the
1939 set_spec (const char *name
, const char *spec
)
1941 struct spec_list
*sl
;
1942 const char *old_spec
;
1943 int name_len
= strlen (name
);
1946 /* If this is the first call, initialize the statically allocated specs. */
1949 struct spec_list
*next
= (struct spec_list
*) 0;
1950 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1952 sl
= &static_specs
[i
];
1959 /* See if the spec already exists. */
1960 for (sl
= specs
; sl
; sl
= sl
->next
)
1961 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1966 /* Not found - make it. */
1967 sl
= XNEW (struct spec_list
);
1968 sl
->name
= xstrdup (name
);
1969 sl
->name_len
= name_len
;
1970 sl
->ptr_spec
= &sl
->ptr
;
1972 *(sl
->ptr_spec
) = "";
1977 old_spec
= *(sl
->ptr_spec
);
1978 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1979 ? concat (old_spec
, spec
+ 1, NULL
)
1984 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1987 /* Free the old spec. */
1988 if (old_spec
&& sl
->alloc_p
)
1989 free (CONST_CAST(char *, old_spec
));
1994 /* Accumulate a command (program name and args), and run it. */
1996 /* Vector of pointers to arguments in the current line of specifications. */
1998 static const char **argbuf
;
2000 /* Number of elements allocated in argbuf. */
2002 static int argbuf_length
;
2004 /* Number of elements in argbuf currently in use (containing args). */
2006 static int argbuf_index
;
2008 /* Position in the argbuf array containing the name of the output file
2009 (the value associated with the "-o" flag). */
2011 static int have_o_argbuf_index
= 0;
2013 /* Were the options -c, -S or -E passed. */
2014 static int have_c
= 0;
2016 /* Was the option -o passed. */
2017 static int have_o
= 0;
2019 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2020 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2023 static struct temp_name
{
2024 const char *suffix
; /* suffix associated with the code. */
2025 int length
; /* strlen (suffix). */
2026 int unique
; /* Indicates whether %g or %u/%U was used. */
2027 const char *filename
; /* associated filename. */
2028 int filename_length
; /* strlen (filename). */
2029 struct temp_name
*next
;
2032 /* Number of commands executed so far. */
2034 static int execution_count
;
2036 /* Number of commands that exited with a signal. */
2038 static int signal_count
;
2040 /* Name with which this program was invoked. */
2042 static const char *programname
;
2044 /* Allocate the argument vector. */
2050 argbuf
= XNEWVEC (const char *, argbuf_length
);
2053 /* Clear out the vector of arguments (after a command is executed). */
2061 /* Add one argument to the vector at the end.
2062 This is done when a space is seen or at the end of the line.
2063 If DELETE_ALWAYS is nonzero, the arg is a filename
2064 and the file should be deleted eventually.
2065 If DELETE_FAILURE is nonzero, the arg is a filename
2066 and the file should be deleted if this compilation fails. */
2069 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2071 if (argbuf_index
+ 1 == argbuf_length
)
2072 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2074 argbuf
[argbuf_index
++] = arg
;
2075 argbuf
[argbuf_index
] = 0;
2077 if (strcmp (arg
, "-o") == 0)
2078 have_o_argbuf_index
= argbuf_index
;
2079 if (delete_always
|| delete_failure
)
2080 record_temp_file (arg
, delete_always
, delete_failure
);
2083 /* Load specs from a file name named FILENAME, replacing occurrences of
2084 various different types of line-endings, \r\n, \n\r and just \r, with
2088 load_specs (const char *filename
)
2092 struct stat statbuf
;
2099 notice ("Reading specs from %s\n", filename
);
2101 /* Open and stat the file. */
2102 desc
= open (filename
, O_RDONLY
, 0);
2104 pfatal_with_name (filename
);
2105 if (stat (filename
, &statbuf
) < 0)
2106 pfatal_with_name (filename
);
2108 /* Read contents of file into BUFFER. */
2109 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2110 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2112 pfatal_with_name (filename
);
2113 buffer
[readlen
] = 0;
2116 specs
= XNEWVEC (char, readlen
+ 1);
2118 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2124 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2126 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2140 /* Read compilation specs from a file named FILENAME,
2141 replacing the default ones.
2143 A suffix which starts with `*' is a definition for
2144 one of the machine-specific sub-specs. The "suffix" should be
2145 *asm, *cc1, *cpp, *link, *startfile, etc.
2146 The corresponding spec is stored in asm_spec, etc.,
2147 rather than in the `compilers' vector.
2149 Anything invalid in the file is a fatal error. */
2152 read_specs (const char *filename
, int main_p
)
2157 buffer
= load_specs (filename
);
2159 /* Scan BUFFER for specs, putting them in the vector. */
2165 char *in
, *out
, *p1
, *p2
, *p3
;
2167 /* Advance P in BUFFER to the next nonblank nocomment line. */
2168 p
= skip_whitespace (p
);
2172 /* Is this a special command that starts with '%'? */
2173 /* Don't allow this for the main specs file, since it would
2174 encourage people to overwrite it. */
2175 if (*p
== '%' && !main_p
)
2178 while (*p
&& *p
!= '\n')
2184 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2185 && (p1
[sizeof "%include" - 1] == ' '
2186 || p1
[sizeof "%include" - 1] == '\t'))
2190 p1
+= sizeof ("%include");
2191 while (*p1
== ' ' || *p1
== '\t')
2194 if (*p1
++ != '<' || p
[-2] != '>')
2195 fatal ("specs %%include syntax malformed after %ld characters",
2196 (long) (p1
- buffer
+ 1));
2199 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2200 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2203 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2204 && (p1
[sizeof "%include_noerr" - 1] == ' '
2205 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2209 p1
+= sizeof "%include_noerr";
2210 while (*p1
== ' ' || *p1
== '\t')
2213 if (*p1
++ != '<' || p
[-2] != '>')
2214 fatal ("specs %%include syntax malformed after %ld characters",
2215 (long) (p1
- buffer
+ 1));
2218 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2220 read_specs (new_filename
, FALSE
);
2221 else if (verbose_flag
)
2222 notice ("could not find specs file %s\n", p1
);
2225 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2226 && (p1
[sizeof "%rename" - 1] == ' '
2227 || p1
[sizeof "%rename" - 1] == '\t'))
2230 struct spec_list
*sl
;
2231 struct spec_list
*newsl
;
2233 /* Get original name. */
2234 p1
+= sizeof "%rename";
2235 while (*p1
== ' ' || *p1
== '\t')
2238 if (! ISALPHA ((unsigned char) *p1
))
2239 fatal ("specs %%rename syntax malformed after %ld characters",
2240 (long) (p1
- buffer
));
2243 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2246 if (*p2
!= ' ' && *p2
!= '\t')
2247 fatal ("specs %%rename syntax malformed after %ld characters",
2248 (long) (p2
- buffer
));
2252 while (*p2
== ' ' || *p2
== '\t')
2255 if (! ISALPHA ((unsigned char) *p2
))
2256 fatal ("specs %%rename syntax malformed after %ld characters",
2257 (long) (p2
- buffer
));
2259 /* Get new spec name. */
2261 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2265 fatal ("specs %%rename syntax malformed after %ld characters",
2266 (long) (p3
- buffer
));
2269 for (sl
= specs
; sl
; sl
= sl
->next
)
2270 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2274 fatal ("specs %s spec was not found to be renamed", p1
);
2276 if (strcmp (p1
, p2
) == 0)
2279 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2280 if (strcmp (newsl
->name
, p2
) == 0)
2281 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2286 notice ("rename spec %s to %s\n", p1
, p2
);
2288 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2292 set_spec (p2
, *(sl
->ptr_spec
));
2294 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2296 *(sl
->ptr_spec
) = "";
2301 fatal ("specs unknown %% command after %ld characters",
2302 (long) (p1
- buffer
));
2305 /* Find the colon that should end the suffix. */
2307 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2310 /* The colon shouldn't be missing. */
2312 fatal ("specs file malformed after %ld characters",
2313 (long) (p1
- buffer
));
2315 /* Skip back over trailing whitespace. */
2317 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2320 /* Copy the suffix to a string. */
2321 suffix
= save_string (p
, p2
- p
);
2322 /* Find the next line. */
2323 p
= skip_whitespace (p1
+ 1);
2325 fatal ("specs file malformed after %ld characters",
2326 (long) (p
- buffer
));
2329 /* Find next blank line or end of string. */
2330 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2333 /* Specs end at the blank line and do not include the newline. */
2334 spec
= save_string (p
, p1
- p
);
2337 /* Delete backslash-newline sequences from the spec. */
2342 if (in
[0] == '\\' && in
[1] == '\n')
2344 else if (in
[0] == '#')
2345 while (*in
&& *in
!= '\n')
2353 if (suffix
[0] == '*')
2355 if (! strcmp (suffix
, "*link_command"))
2356 link_command_spec
= spec
;
2358 set_spec (suffix
+ 1, spec
);
2362 /* Add this pair to the vector. */
2364 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2366 compilers
[n_compilers
].suffix
= suffix
;
2367 compilers
[n_compilers
].spec
= spec
;
2369 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2373 link_command_spec
= spec
;
2376 if (link_command_spec
== 0)
2377 fatal ("spec file has no spec for linking");
2380 /* Record the names of temporary files we tell compilers to write,
2381 and delete them at the end of the run. */
2383 /* This is the common prefix we use to make temp file names.
2384 It is chosen once for each run of this program.
2385 It is substituted into a spec by %g or %j.
2386 Thus, all temp file names contain this prefix.
2387 In practice, all temp file names start with this prefix.
2389 This prefix comes from the envvar TMPDIR if it is defined;
2390 otherwise, from the P_tmpdir macro if that is defined;
2391 otherwise, in /usr/tmp or /tmp;
2392 or finally the current directory if all else fails. */
2394 static const char *temp_filename
;
2396 /* Length of the prefix. */
2398 static int temp_filename_length
;
2400 /* Define the list of temporary files to delete. */
2405 struct temp_file
*next
;
2408 /* Queue of files to delete on success or failure of compilation. */
2409 static struct temp_file
*always_delete_queue
;
2410 /* Queue of files to delete on failure of compilation. */
2411 static struct temp_file
*failure_delete_queue
;
2413 /* Record FILENAME as a file to be deleted automatically.
2414 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2415 otherwise delete it in any case.
2416 FAIL_DELETE nonzero means delete it if a compilation step fails;
2417 otherwise delete it in any case. */
2420 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2422 char *const name
= xstrdup (filename
);
2426 struct temp_file
*temp
;
2427 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2428 if (! strcmp (name
, temp
->name
))
2431 temp
= XNEW (struct temp_file
);
2432 temp
->next
= always_delete_queue
;
2434 always_delete_queue
= temp
;
2441 struct temp_file
*temp
;
2442 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2443 if (! strcmp (name
, temp
->name
))
2446 temp
= XNEW (struct temp_file
);
2447 temp
->next
= failure_delete_queue
;
2449 failure_delete_queue
= temp
;
2455 /* Delete all the temporary files whose names we previously recorded. */
2457 #ifndef DELETE_IF_ORDINARY
2458 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2461 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2462 if (unlink (NAME) < 0) \
2464 perror_with_name (NAME); \
2469 delete_if_ordinary (const char *name
)
2475 printf ("Delete %s? (y or n) ", name
);
2479 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2482 if (i
== 'y' || i
== 'Y')
2484 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2488 delete_temp_files (void)
2490 struct temp_file
*temp
;
2492 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2493 delete_if_ordinary (temp
->name
);
2494 always_delete_queue
= 0;
2497 /* Delete all the files to be deleted on error. */
2500 delete_failure_queue (void)
2502 struct temp_file
*temp
;
2504 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2505 delete_if_ordinary (temp
->name
);
2509 clear_failure_queue (void)
2511 failure_delete_queue
= 0;
2514 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2516 If DO_MULTI is true iterate over the paths twice, first with multilib
2517 suffix then without, otherwise iterate over the paths once without
2518 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2519 to avoid visiting the same path twice, but we could do better. For
2520 instance, /usr/lib/../lib is considered different from /usr/lib.
2521 At least EXTRA_SPACE chars past the end of the path passed to
2522 CALLBACK are available for use by the callback.
2523 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2525 Returns the value returned by CALLBACK. */
2528 for_each_path (const struct path_prefix
*paths
,
2531 void *(*callback
) (char *, void *),
2532 void *callback_info
)
2534 struct prefix_list
*pl
;
2535 const char *multi_dir
= NULL
;
2536 const char *multi_os_dir
= NULL
;
2537 const char *multi_suffix
;
2538 const char *just_multi_suffix
;
2541 bool skip_multi_dir
= false;
2542 bool skip_multi_os_dir
= false;
2544 multi_suffix
= machine_suffix
;
2545 just_multi_suffix
= just_machine_suffix
;
2546 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2548 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2549 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2550 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2552 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2553 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2557 size_t multi_dir_len
= 0;
2558 size_t multi_os_dir_len
= 0;
2560 size_t just_suffix_len
;
2564 multi_dir_len
= strlen (multi_dir
);
2566 multi_os_dir_len
= strlen (multi_os_dir
);
2567 suffix_len
= strlen (multi_suffix
);
2568 just_suffix_len
= strlen (just_multi_suffix
);
2572 len
= paths
->max_len
+ extra_space
+ 1;
2573 if (suffix_len
> multi_os_dir_len
)
2576 len
+= multi_os_dir_len
;
2577 path
= XNEWVEC (char, len
);
2580 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2582 len
= strlen (pl
->prefix
);
2583 memcpy (path
, pl
->prefix
, len
);
2585 /* Look first in MACHINE/VERSION subdirectory. */
2586 if (!skip_multi_dir
)
2588 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2589 ret
= callback (path
, callback_info
);
2594 /* Some paths are tried with just the machine (ie. target)
2595 subdir. This is used for finding as, ld, etc. */
2597 && pl
->require_machine_suffix
== 2)
2599 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2600 ret
= callback (path
, callback_info
);
2605 /* Now try the base path. */
2606 if (!pl
->require_machine_suffix
2607 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2609 const char *this_multi
;
2610 size_t this_multi_len
;
2612 if (pl
->os_multilib
)
2614 this_multi
= multi_os_dir
;
2615 this_multi_len
= multi_os_dir_len
;
2619 this_multi
= multi_dir
;
2620 this_multi_len
= multi_dir_len
;
2624 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2628 ret
= callback (path
, callback_info
);
2636 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2639 /* Run through the paths again, this time without multilibs.
2640 Don't repeat any we have already seen. */
2643 free (CONST_CAST (char *, multi_dir
));
2645 free (CONST_CAST (char *, multi_suffix
));
2646 multi_suffix
= machine_suffix
;
2647 free (CONST_CAST (char *, just_multi_suffix
));
2648 just_multi_suffix
= just_machine_suffix
;
2651 skip_multi_dir
= true;
2654 free (CONST_CAST (char *, multi_os_dir
));
2655 multi_os_dir
= NULL
;
2658 skip_multi_os_dir
= true;
2663 free (CONST_CAST (char *, multi_dir
));
2664 free (CONST_CAST (char *, multi_suffix
));
2665 free (CONST_CAST (char *, just_multi_suffix
));
2668 free (CONST_CAST (char *, multi_os_dir
));
2674 /* Callback for build_search_list. Adds path to obstack being built. */
2676 struct add_to_obstack_info
{
2683 add_to_obstack (char *path
, void *data
)
2685 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2687 if (info
->check_dir
&& !is_directory (path
, false))
2690 if (!info
->first_time
)
2691 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2693 obstack_grow (info
->ob
, path
, strlen (path
));
2695 info
->first_time
= false;
2699 /* Add or change the value of an environment variable, outputting the
2700 change to standard error if in verbose mode. */
2702 xputenv (const char *string
)
2705 notice ("%s\n", string
);
2706 putenv (CONST_CAST (char *, string
));
2709 /* Build a list of search directories from PATHS.
2710 PREFIX is a string to prepend to the list.
2711 If CHECK_DIR_P is true we ensure the directory exists.
2712 If DO_MULTI is true, multilib paths are output first, then
2714 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2715 It is also used by the --print-search-dirs flag. */
2718 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2719 bool check_dir
, bool do_multi
)
2721 struct add_to_obstack_info info
;
2723 info
.ob
= &collect_obstack
;
2724 info
.check_dir
= check_dir
;
2725 info
.first_time
= true;
2727 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2728 obstack_1grow (&collect_obstack
, '=');
2730 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2732 obstack_1grow (&collect_obstack
, '\0');
2733 return XOBFINISH (&collect_obstack
, char *);
2736 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2740 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2743 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2746 /* Check whether NAME can be accessed in MODE. This is like access,
2747 except that it never considers directories to be executable. */
2750 access_check (const char *name
, int mode
)
2756 if (stat (name
, &st
) < 0
2757 || S_ISDIR (st
.st_mode
))
2761 return access (name
, mode
);
2764 /* Callback for find_a_file. Appends the file name to the directory
2765 path. If the resulting file exists in the right mode, return the
2766 full pathname to the file. */
2768 struct file_at_path_info
{
2777 file_at_path (char *path
, void *data
)
2779 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2780 size_t len
= strlen (path
);
2782 memcpy (path
+ len
, info
->name
, info
->name_len
);
2783 len
+= info
->name_len
;
2785 /* Some systems have a suffix for executable files.
2786 So try appending that first. */
2787 if (info
->suffix_len
)
2789 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2790 if (access_check (path
, info
->mode
) == 0)
2795 if (access_check (path
, info
->mode
) == 0)
2801 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2802 access to check permissions. If DO_MULTI is true, search multilib
2803 paths then non-multilib paths, otherwise do not search multilib paths.
2804 Return 0 if not found, otherwise return its name, allocated with malloc. */
2807 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2810 struct file_at_path_info info
;
2812 #ifdef DEFAULT_ASSEMBLER
2813 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2814 return xstrdup (DEFAULT_ASSEMBLER
);
2817 #ifdef DEFAULT_LINKER
2818 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2819 return xstrdup (DEFAULT_LINKER
);
2822 /* Determine the filename to execute (special case for absolute paths). */
2824 if (IS_ABSOLUTE_PATH (name
))
2826 if (access (name
, mode
) == 0)
2827 return xstrdup (name
);
2833 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2834 info
.name_len
= strlen (info
.name
);
2835 info
.suffix_len
= strlen (info
.suffix
);
2838 return (char*) for_each_path (pprefix
, do_multi
,
2839 info
.name_len
+ info
.suffix_len
,
2840 file_at_path
, &info
);
2843 /* Ranking of prefixes in the sort list. -B prefixes are put before
2846 enum path_prefix_priority
2848 PREFIX_PRIORITY_B_OPT
,
2849 PREFIX_PRIORITY_LAST
2852 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2853 order according to PRIORITY. Within each PRIORITY, new entries are
2856 If WARN is nonzero, we will warn if no file is found
2857 through this prefix. WARN should point to an int
2858 which will be set to 1 if this entry is used.
2860 COMPONENT is the value to be passed to update_path.
2862 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2863 the complete value of machine_suffix.
2864 2 means try both machine_suffix and just_machine_suffix. */
2867 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2868 const char *component
, /* enum prefix_priority */ int priority
,
2869 int require_machine_suffix
, int os_multilib
)
2871 struct prefix_list
*pl
, **prev
;
2874 for (prev
= &pprefix
->plist
;
2875 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2876 prev
= &(*prev
)->next
)
2879 /* Keep track of the longest prefix. */
2881 prefix
= update_path (prefix
, component
);
2882 len
= strlen (prefix
);
2883 if (len
> pprefix
->max_len
)
2884 pprefix
->max_len
= len
;
2886 pl
= XNEW (struct prefix_list
);
2887 pl
->prefix
= prefix
;
2888 pl
->require_machine_suffix
= require_machine_suffix
;
2889 pl
->priority
= priority
;
2890 pl
->os_multilib
= os_multilib
;
2892 /* Insert after PREV. */
2897 /* Same as add_prefix, but prepending target_system_root to prefix. */
2898 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2900 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2901 const char *component
,
2902 /* enum prefix_priority */ int priority
,
2903 int require_machine_suffix
, int os_multilib
)
2905 if (!IS_ABSOLUTE_PATH (prefix
))
2906 fatal ("system path '%s' is not absolute", prefix
);
2908 if (target_system_root
)
2910 if (target_sysroot_suffix
)
2911 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2912 prefix
= concat (target_system_root
, prefix
, NULL
);
2914 /* We have to override this because GCC's notion of sysroot
2915 moves along with GCC. */
2919 add_prefix (pprefix
, prefix
, component
, priority
,
2920 require_machine_suffix
, os_multilib
);
2923 /* Execute the command specified by the arguments on the current line of spec.
2924 When using pipes, this includes several piped-together commands
2925 with `|' between them.
2927 Return 0 if successful, -1 if failed. */
2933 int n_commands
; /* # of command. */
2935 struct pex_obj
*pex
;
2938 const char *prog
; /* program name. */
2939 const char **argv
; /* vector of args. */
2942 struct command
*commands
; /* each command buffer with above info. */
2944 gcc_assert (!processing_spec_function
);
2948 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2949 argbuf
[0] = (string
) ? string
: argbuf
[0];
2950 insert_wrapper (wrapper_string
);
2953 /* Count # of piped commands. */
2954 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2955 if (strcmp (argbuf
[i
], "|") == 0)
2958 /* Get storage for each command. */
2959 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2961 /* Split argbuf into its separate piped processes,
2962 and record info about each one.
2963 Also search for the programs that are to be run. */
2965 commands
[0].prog
= argbuf
[0]; /* first command. */
2966 commands
[0].argv
= &argbuf
[0];
2968 if (!wrapper_string
)
2970 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2971 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2974 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2975 if (strcmp (argbuf
[i
], "|") == 0)
2976 { /* each command. */
2977 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2978 fatal ("-pipe not supported");
2980 argbuf
[i
] = 0; /* termination of command args. */
2981 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2982 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2983 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2986 commands
[n_commands
].argv
[0] = string
;
2990 argbuf
[argbuf_index
] = 0;
2992 /* If -v, print what we are about to do, and maybe query. */
2996 /* For help listings, put a blank line between sub-processes. */
2997 if (print_help_list
)
2998 fputc ('\n', stderr
);
3000 /* Print each piped command as a separate line. */
3001 for (i
= 0; i
< n_commands
; i
++)
3003 const char *const *j
;
3005 if (verbose_only_flag
)
3007 for (j
= commands
[i
].argv
; *j
; j
++)
3010 fprintf (stderr
, " \"");
3011 for (p
= *j
; *p
; ++p
)
3013 if (*p
== '"' || *p
== '\\' || *p
== '$')
3014 fputc ('\\', stderr
);
3017 fputc ('"', stderr
);
3021 for (j
= commands
[i
].argv
; *j
; j
++)
3022 fprintf (stderr
, " %s", *j
);
3024 /* Print a pipe symbol after all but the last command. */
3025 if (i
+ 1 != n_commands
)
3026 fprintf (stderr
, " |");
3027 fprintf (stderr
, "\n");
3030 if (verbose_only_flag
!= 0)
3032 /* verbose_only_flag should act as if the spec was
3033 executed, so increment execution_count before
3034 returning. This prevents spurious warnings about
3035 unused linker input files, etc. */
3040 notice ("\nGo ahead? (y or n) ");
3044 while (getchar () != '\n')
3047 if (i
!= 'y' && i
!= 'Y')
3052 #ifdef ENABLE_VALGRIND_CHECKING
3053 /* Run the each command through valgrind. To simplify prepending the
3054 path to valgrind and the option "-q" (for quiet operation unless
3055 something triggers), we allocate a separate argv array. */
3057 for (i
= 0; i
< n_commands
; i
++)
3063 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3066 argv
= XALLOCAVEC (const char *, argc
+ 3);
3068 argv
[0] = VALGRIND_PATH
;
3070 for (j
= 2; j
< argc
+ 2; j
++)
3071 argv
[j
] = commands
[i
].argv
[j
- 2];
3074 commands
[i
].argv
= argv
;
3075 commands
[i
].prog
= argv
[0];
3079 /* Run each piped subprocess. */
3081 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3082 ? PEX_RECORD_TIMES
: 0),
3083 programname
, temp_filename
);
3085 pfatal_with_name (_("pex_init failed"));
3087 for (i
= 0; i
< n_commands
; i
++)
3091 const char *string
= commands
[i
].argv
[0];
3093 errmsg
= pex_run (pex
,
3094 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3095 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3096 string
, CONST_CAST (char **, commands
[i
].argv
),
3105 pfatal_with_name (errmsg
);
3109 if (string
!= commands
[i
].prog
)
3110 free (CONST_CAST (char *, string
));
3115 /* Wait for all the subprocesses to finish. */
3119 struct pex_time
*times
= NULL
;
3122 statuses
= (int *) alloca (n_commands
* sizeof (int));
3123 if (!pex_get_status (pex
, n_commands
, statuses
))
3124 pfatal_with_name (_("failed to get exit status"));
3126 if (report_times
|| report_times_to_file
)
3128 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3129 if (!pex_get_times (pex
, n_commands
, times
))
3130 pfatal_with_name (_("failed to get process times"));
3135 for (i
= 0; i
< n_commands
; ++i
)
3137 int status
= statuses
[i
];
3139 if (WIFSIGNALED (status
))
3142 /* SIGPIPE is a special case. It happens in -pipe mode
3143 when the compiler dies before the preprocessor is done,
3144 or the assembler dies before the compiler is done.
3145 There's generally been an error already, and this is
3146 just fallout. So don't generate another error unless
3147 we would otherwise have succeeded. */
3148 if (WTERMSIG (status
) == SIGPIPE
3149 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3157 Internal error: %s (program %s)\n\
3158 Please submit a full bug report.\n\
3159 See %s for instructions.",
3160 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3163 else if (WIFEXITED (status
)
3164 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3166 if (WEXITSTATUS (status
) > greatest_status
)
3167 greatest_status
= WEXITSTATUS (status
);
3171 if (report_times
|| report_times_to_file
)
3173 struct pex_time
*pt
= ×
[i
];
3176 ut
= ((double) pt
->user_seconds
3177 + (double) pt
->user_microseconds
/ 1.0e6
);
3178 st
= ((double) pt
->system_seconds
3179 + (double) pt
->system_microseconds
/ 1.0e6
);
3184 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3186 if (report_times_to_file
)
3189 const char *const *j
;
3191 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3193 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3196 for (p
= *j
; *p
; ++p
)
3197 if (*p
== '"' || *p
== '\\' || *p
== '$'
3203 fprintf (report_times_to_file
, " \"");
3204 for (p
= *j
; *p
; ++p
)
3206 if (*p
== '"' || *p
== '\\' || *p
== '$')
3207 fputc ('\\', report_times_to_file
);
3208 fputc (*p
, report_times_to_file
);
3210 fputc ('"', report_times_to_file
);
3213 fprintf (report_times_to_file
, " %s", *j
);
3216 fputc ('\n', report_times_to_file
);
3226 /* Find all the switches given to us
3227 and make a vector describing them.
3228 The elements of the vector are strings, one per switch given.
3229 If a switch uses following arguments, then the `part1' field
3230 is the switch itself and the `args' field
3231 is a null-terminated vector containing the following arguments.
3232 Bits in the `live_cond' field are:
3233 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3234 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3235 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3236 SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
3237 in all do_spec calls afterwards. Used for %<S from self specs.
3238 The `validated' field is nonzero if any spec has looked at this switch;
3239 if it remains zero at the end of the run, it must be meaningless. */
3241 #define SWITCH_LIVE 0x1
3242 #define SWITCH_FALSE 0x2
3243 #define SWITCH_IGNORE 0x4
3244 #define SWITCH_IGNORE_PERMANENTLY 0x8
3250 unsigned int live_cond
;
3251 unsigned char validated
;
3252 unsigned char ordering
;
3255 static struct switchstr
*switches
;
3257 static int n_switches
;
3259 /* Set to zero if -fcompare-debug is disabled, positive if it's
3260 enabled and we're running the first compilation, negative if it's
3261 enabled and we're running the second compilation. For most of the
3262 time, it's in the range -1..1, but it can be temporarily set to 2
3263 or 3 to indicate that the -fcompare-debug flags didn't come from
3264 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3265 variable, until a synthesized -fcompare-debug flag is added to the
3269 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3270 int compare_debug_second
;
3272 /* Set to the flags that should be passed to the second compilation in
3273 a -fcompare-debug compilation. */
3274 const char *compare_debug_opt
;
3276 static struct switchstr
*switches_debug_check
[2];
3278 static int n_switches_debug_check
[2];
3280 static char *debug_check_temp_file
[2];
3282 /* Language is one of three things:
3284 1) The name of a real programming language.
3285 2) NULL, indicating that no one has figured out
3287 3) '*', indicating that the file should be passed
3292 const char *language
;
3293 struct compiler
*incompiler
;
3298 /* Also a vector of input files specified. */
3300 static struct infile
*infiles
;
3304 /* True if multiple input files are being compiled to a single
3307 static bool combine_inputs
;
3309 /* This counts the number of libraries added by lang_specific_driver, so that
3310 we can tell if there were any user supplied any files or libraries. */
3312 static int added_libraries
;
3314 /* And a vector of corresponding output files is made up later. */
3316 const char **outfiles
;
3318 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3320 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3321 is true if we should look for an executable suffix. DO_OBJ
3322 is true if we should look for an object suffix. */
3325 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3326 int do_obj ATTRIBUTE_UNUSED
)
3328 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3336 len
= strlen (name
);
3338 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3339 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3340 if (do_obj
&& len
> 2
3341 && name
[len
- 2] == '.'
3342 && name
[len
- 1] == 'o')
3344 obstack_grow (&obstack
, name
, len
- 2);
3345 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3346 name
= XOBFINISH (&obstack
, const char *);
3350 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3351 /* If there is no filetype, make it the executable suffix (which includes
3352 the "."). But don't get confused if we have just "-o". */
3353 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3356 for (i
= len
- 1; i
>= 0; i
--)
3357 if (IS_DIR_SEPARATOR (name
[i
]))
3360 for (i
++; i
< len
; i
++)
3364 obstack_grow (&obstack
, name
, len
);
3365 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3366 strlen (TARGET_EXECUTABLE_SUFFIX
));
3367 name
= XOBFINISH (&obstack
, const char *);
3374 /* Display the command line switches accepted by gcc. */
3378 printf (_("Usage: %s [options] file...\n"), programname
);
3379 fputs (_("Options:\n"), stdout
);
3381 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3382 fputs (_(" --help Display this information\n"), stdout
);
3383 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3384 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3385 fputs (_(" Display specific types of command line options\n"), stdout
);
3387 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3388 fputs (_(" --version Display compiler version information\n"), stdout
);
3389 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3390 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3391 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3392 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3393 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3394 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3395 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3396 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3398 -print-multi-lib Display the mapping between command line options and\n\
3399 multiple library search directories\n"), stdout
);
3400 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3401 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3402 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3403 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3404 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3405 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3406 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3407 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3408 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3409 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3410 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3411 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3413 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3414 prefixes to other gcc components\n"), stdout
);
3415 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3416 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3417 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3418 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3420 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3421 and libraries\n"), stdout
);
3422 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3423 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3424 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3425 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3426 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3427 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3428 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3429 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3430 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3432 -x <language> Specify the language of the following input files\n\
3433 Permissible languages include: c c++ assembler none\n\
3434 'none' means revert to the default behavior of\n\
3435 guessing the language based on the file's extension\n\
3439 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3440 passed on to the various sub-processes invoked by %s. In order to pass\n\
3441 other options on to these processes the -W<letter> options must be used.\n\
3444 /* The rest of the options are displayed by invocations of the various
3449 add_preprocessor_option (const char *option
, int len
)
3451 n_preprocessor_options
++;
3453 if (! preprocessor_options
)
3454 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3456 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3457 n_preprocessor_options
);
3459 preprocessor_options
[n_preprocessor_options
- 1] =
3460 save_string (option
, len
);
3464 add_assembler_option (const char *option
, int len
)
3466 n_assembler_options
++;
3468 if (! assembler_options
)
3469 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3471 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3472 n_assembler_options
);
3474 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3478 add_linker_option (const char *option
, int len
)
3482 if (! linker_options
)
3483 linker_options
= XNEWVEC (char *, n_linker_options
);
3485 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3487 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3490 /* Create the vector `switches' and its contents.
3491 Store its length in `n_switches'. */
3494 process_command (int argc
, const char **argv
)
3499 const char *spec_lang
= 0;
3500 int last_language_n_infiles
;
3501 int lang_n_infiles
= 0;
3502 #ifdef MODIFY_TARGET_NAME
3503 int is_modify_target_name
;
3506 const char *tooldir_prefix
;
3507 char *(*get_relative_prefix
) (const char *, const char *,
3508 const char *) = NULL
;
3510 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3514 added_libraries
= 0;
3516 /* Figure compiler version from version string. */
3518 compiler_version
= temp1
= xstrdup (version_string
);
3520 for (; *temp1
; ++temp1
)
3529 /* If there is a -V or -b option (or both), process it now, before
3530 trying to interpret the rest of the command line.
3531 Use heuristic that all configuration names must have at least
3532 one dash '-'. This allows us to pass options starting with -b. */
3533 if (argc
> 1 && argv
[1][0] == '-'
3534 && (argv
[1][1] == 'V'
3535 || (argv
[1][1] == 'b'
3536 && (argv
[1][2] == '\0'
3537 || NULL
!= strchr (argv
[1] + 2, '-')))))
3539 const char *new_version
= DEFAULT_TARGET_VERSION
;
3540 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3541 const char *progname
= argv
[0];
3549 while (argc
> 1 && argv
[1][0] == '-'
3550 && (argv
[1][1] == 'V'
3551 || (argv
[1][1] == 'b'
3552 && (argv
[1][2] == '\0'
3553 || NULL
!= strchr (argv
[1] + 2, '-')))))
3555 char opt
= argv
[1][1];
3557 if (argv
[1][2] != '\0')
3570 fatal ("'-%c' option must have argument", opt
);
3577 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3578 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3580 new_argv0
= XDUPVAR (char, progname
, baselen
,
3581 baselen
+ concat_length (new_version
, new_machine
,
3582 "-gcc-", NULL
) + 1);
3583 strcpy (new_argv0
+ baselen
, new_machine
);
3584 strcat (new_argv0
, "-gcc-");
3585 strcat (new_argv0
, new_version
);
3587 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3588 new_argv
[0] = new_argv0
;
3590 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3591 NULL
, &status
, &err
);
3596 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3598 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3604 /* Convert new-style -- options to old-style. */
3605 translate_options (&argc
,
3606 CONST_CAST2 (const char *const **, const char ***,
3609 /* Do language-specific adjustment/addition of flags. */
3610 lang_specific_driver (&argc
,
3611 CONST_CAST2 (const char *const **, const char ***,
3615 /* Handle any -no-canonical-prefixes flag early, to assign the function
3616 that builds relative prefixes. This function creates default search
3617 paths that are needed later in normal option handling. */
3619 for (i
= 1; i
< argc
; i
++)
3621 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3623 get_relative_prefix
= make_relative_prefix_ignore_links
;
3627 if (! get_relative_prefix
)
3628 get_relative_prefix
= make_relative_prefix
;
3630 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3631 see if we can create it from the pathname specified in argv[0]. */
3633 gcc_libexec_prefix
= standard_libexec_prefix
;
3635 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3636 if (!gcc_exec_prefix
)
3638 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3639 standard_bindir_prefix
,
3640 standard_exec_prefix
);
3641 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3642 standard_bindir_prefix
,
3643 standard_libexec_prefix
);
3644 if (gcc_exec_prefix
)
3645 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3649 /* make_relative_prefix requires a program name, but
3650 GCC_EXEC_PREFIX is typically a directory name with a trailing
3651 / (which is ignored by make_relative_prefix), so append a
3653 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3654 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3655 standard_exec_prefix
,
3656 standard_libexec_prefix
);
3658 /* The path is unrelocated, so fallback to the original setting. */
3659 if (!gcc_libexec_prefix
)
3660 gcc_libexec_prefix
= standard_libexec_prefix
;
3666 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3667 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3668 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3670 if (gcc_exec_prefix
)
3672 int len
= strlen (gcc_exec_prefix
);
3674 if (len
> (int) sizeof ("/lib/gcc/") - 1
3675 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3677 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3678 if (IS_DIR_SEPARATOR (*temp
)
3679 && strncmp (temp
+ 1, "lib", 3) == 0
3680 && IS_DIR_SEPARATOR (temp
[4])
3681 && strncmp (temp
+ 5, "gcc", 3) == 0)
3682 len
-= sizeof ("/lib/gcc/") - 1;
3685 set_std_prefix (gcc_exec_prefix
, len
);
3686 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3687 PREFIX_PRIORITY_LAST
, 0, 0);
3688 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3689 PREFIX_PRIORITY_LAST
, 0, 0);
3692 /* COMPILER_PATH and LIBRARY_PATH have values
3693 that are lists of directory names with colons. */
3695 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3698 const char *startp
, *endp
;
3699 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3701 startp
= endp
= temp
;
3704 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3706 strncpy (nstore
, startp
, endp
- startp
);
3708 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3709 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3711 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3712 nstore
[endp
- startp
+ 1] = 0;
3715 nstore
[endp
- startp
] = 0;
3716 add_prefix (&exec_prefixes
, nstore
, 0,
3717 PREFIX_PRIORITY_LAST
, 0, 0);
3718 add_prefix (&include_prefixes
, nstore
, 0,
3719 PREFIX_PRIORITY_LAST
, 0, 0);
3722 endp
= startp
= endp
+ 1;
3729 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3730 if (temp
&& *cross_compile
== '0')
3732 const char *startp
, *endp
;
3733 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3735 startp
= endp
= temp
;
3738 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3740 strncpy (nstore
, startp
, endp
- startp
);
3742 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3743 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3745 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3746 nstore
[endp
- startp
+ 1] = 0;
3749 nstore
[endp
- startp
] = 0;
3750 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3751 PREFIX_PRIORITY_LAST
, 0, 1);
3754 endp
= startp
= endp
+ 1;
3761 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3762 GET_ENVIRONMENT (temp
, "LPATH");
3763 if (temp
&& *cross_compile
== '0')
3765 const char *startp
, *endp
;
3766 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3768 startp
= endp
= temp
;
3771 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3773 strncpy (nstore
, startp
, endp
- startp
);
3775 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3776 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3778 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3779 nstore
[endp
- startp
+ 1] = 0;
3782 nstore
[endp
- startp
] = 0;
3783 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3784 PREFIX_PRIORITY_LAST
, 0, 1);
3787 endp
= startp
= endp
+ 1;
3794 /* Scan argv twice. Here, the first time, just count how many switches
3795 there will be in their vector, and how many input files in theirs.
3796 Here we also parse the switches that cc itself uses (e.g. -v). */
3798 for (i
= 1; i
< argc
; i
++)
3800 if (! strcmp (argv
[i
], "-dumpspecs"))
3802 struct spec_list
*sl
;
3804 for (sl
= specs
; sl
; sl
= sl
->next
)
3805 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3806 if (link_command_spec
)
3807 printf ("*link_command:\n%s\n\n", link_command_spec
);
3810 else if (! strcmp (argv
[i
], "-dumpversion"))
3812 printf ("%s\n", spec_version
);
3815 else if (! strcmp (argv
[i
], "-dumpmachine"))
3817 printf ("%s\n", spec_machine
);
3820 else if (strcmp (argv
[i
], "-fversion") == 0)
3822 /* translate_options () has turned --version into -fversion. */
3825 /* We will be passing a dummy file on to the sub-processes. */
3829 /* CPP driver cannot obtain switch from cc1_options. */
3831 add_preprocessor_option ("--version", strlen ("--version"));
3832 add_assembler_option ("--version", strlen ("--version"));
3833 add_linker_option ("--version", strlen ("--version"));
3835 else if (strcmp (argv
[i
], "-fhelp") == 0)
3837 /* translate_options () has turned --help into -fhelp. */
3838 print_help_list
= 1;
3840 /* We will be passing a dummy file on to the sub-processes. */
3844 /* CPP driver cannot obtain switch from cc1_options. */
3846 add_preprocessor_option ("--help", 6);
3847 add_assembler_option ("--help", 6);
3848 add_linker_option ("--help", 6);
3850 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3852 /* translate_options () has turned --help into -fhelp. */
3853 print_subprocess_help
= 2;
3855 /* We will be passing a dummy file on to the sub-processes. */
3859 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3861 /* translate_options() has turned --target-help into -ftarget-help. */
3862 print_subprocess_help
= 1;
3864 /* We will be passing a dummy file on to the sub-processes. */
3868 /* CPP driver cannot obtain switch from cc1_options. */
3870 add_preprocessor_option ("--target-help", 13);
3871 add_assembler_option ("--target-help", 13);
3872 add_linker_option ("--target-help", 13);
3874 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3876 pass_exit_codes
= 1;
3879 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3880 print_search_dirs
= 1;
3881 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3882 print_file_name
= "libgcc.a";
3883 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3884 print_file_name
= argv
[i
] + 17;
3885 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3886 print_prog_name
= argv
[i
] + 17;
3887 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3888 print_multi_lib
= 1;
3889 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3890 print_multi_directory
= 1;
3891 else if (! strcmp (argv
[i
], "-print-sysroot"))
3893 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3894 print_multi_os_directory
= 1;
3895 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3896 print_sysroot_headers_suffix
= 1;
3897 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3899 compare_debug_second
= 1;
3902 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3904 argv
[i
] = "-fcompare-debug=";
3905 goto compare_debug_with_arg
;
3907 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3909 argv
[i
] = "-fcompare-debug=-gtoggle";
3910 goto compare_debug_with_arg
;
3912 #define OPT "-fcompare-debug="
3913 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3916 compare_debug_with_arg
:
3917 opt
= argv
[i
] + sizeof (OPT
) - 1;
3923 if (compare_debug
< 0)
3924 compare_debug_opt
= NULL
;
3926 compare_debug_opt
= opt
;
3929 else if (! strncmp (argv
[i
], "-Wa,", 4))
3932 /* Pass the rest of this option to the assembler. */
3934 /* Split the argument at commas. */
3936 for (j
= 4; argv
[i
][j
]; j
++)
3937 if (argv
[i
][j
] == ',')
3939 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3943 /* Record the part after the last comma. */
3944 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3946 else if (! strncmp (argv
[i
], "-Wp,", 4))
3949 /* Pass the rest of this option to the preprocessor. */
3951 /* Split the argument at commas. */
3953 for (j
= 4; argv
[i
][j
]; j
++)
3954 if (argv
[i
][j
] == ',')
3956 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3960 /* Record the part after the last comma. */
3961 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3963 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3964 /* The +e options to the C++ front-end. */
3966 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3969 /* Split the argument at commas. */
3970 for (j
= 3; argv
[i
][j
]; j
++)
3971 n_infiles
+= (argv
[i
][j
] == ',');
3973 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3976 fatal ("argument to '-Xlinker' is missing");
3981 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3984 fatal ("argument to '-Xpreprocessor' is missing");
3986 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3988 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3991 fatal ("argument to '-Xassembler' is missing");
3993 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3995 else if (strcmp (argv
[i
], "-l") == 0)
3998 fatal ("argument to '-l' is missing");
4003 else if (strncmp (argv
[i
], "-l", 2) == 0)
4005 else if (strcmp (argv
[i
], "-save-temps") == 0)
4007 save_temps_flag
= SAVE_TEMPS_CWD
;
4010 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
4013 if (strcmp (argv
[i
]+12, "cwd") == 0)
4014 save_temps_flag
= SAVE_TEMPS_CWD
;
4015 else if (strcmp (argv
[i
]+12, "obj") == 0
4016 || strcmp (argv
[i
]+12, "object") == 0)
4017 save_temps_flag
= SAVE_TEMPS_OBJ
;
4019 fatal ("'%s' is an unknown -save-temps option", argv
[i
]);
4021 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
4022 /* Already handled as a special case, so ignored here. */
4024 else if (strcmp (argv
[i
], "-combine") == 0)
4029 else if (strcmp (argv
[i
], "-specs") == 0)
4031 struct user_specs
*user
= XNEW (struct user_specs
);
4033 fatal ("argument to '-specs' is missing");
4035 user
->next
= (struct user_specs
*) 0;
4036 user
->filename
= argv
[i
];
4037 if (user_specs_tail
)
4038 user_specs_tail
->next
= user
;
4040 user_specs_head
= user
;
4041 user_specs_tail
= user
;
4043 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4045 struct user_specs
*user
= XNEW (struct user_specs
);
4046 if (strlen (argv
[i
]) == 7)
4047 fatal ("argument to '-specs=' is missing");
4049 user
->next
= (struct user_specs
*) 0;
4050 user
->filename
= argv
[i
] + 7;
4051 if (user_specs_tail
)
4052 user_specs_tail
->next
= user
;
4054 user_specs_head
= user
;
4055 user_specs_tail
= user
;
4057 else if (strcmp (argv
[i
], "-time") == 0)
4059 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4061 if (report_times_to_file
)
4062 fclose (report_times_to_file
);
4063 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4065 else if (strcmp (argv
[i
], "-pipe") == 0)
4067 /* -pipe has to go into the switches array as well as
4072 else if (strcmp (argv
[i
], "-wrapper") == 0)
4075 fatal ("argument to '-wrapper' is missing");
4077 wrapper_string
= argv
[i
];
4081 else if (strcmp (argv
[i
], "-###") == 0)
4083 /* This is similar to -v except that there is no execution
4084 of the commands and the echoed arguments are quoted. It
4085 is intended for use in shell scripts to capture the
4086 driver-generated command line. */
4087 verbose_only_flag
++;
4090 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4092 const char *p
= &argv
[i
][1];
4098 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
4103 fatal ("'-%c' must come at the start of the command line", c
);
4111 if (p
[1] == 0 && i
+ 1 == argc
)
4112 fatal ("argument to '-B' is missing");
4118 len
= strlen (value
);
4120 /* Catch the case where the user has forgotten to append a
4121 directory separator to the path. Note, they may be using
4122 -B to add an executable name prefix, eg "i386-elf-", in
4123 order to distinguish between multiple installations of
4124 GCC in the same directory. Hence we must check to see
4125 if appending a directory separator actually makes a
4126 valid directory name. */
4127 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4128 && is_directory (value
, false))
4130 char *tmp
= XNEWVEC (char, len
+ 2);
4131 strcpy (tmp
, value
);
4132 tmp
[len
] = DIR_SEPARATOR
;
4137 add_prefix (&exec_prefixes
, value
, NULL
,
4138 PREFIX_PRIORITY_B_OPT
, 0, 0);
4139 add_prefix (&startfile_prefixes
, value
, NULL
,
4140 PREFIX_PRIORITY_B_OPT
, 0, 0);
4141 add_prefix (&include_prefixes
, value
, NULL
,
4142 PREFIX_PRIORITY_B_OPT
, 0, 0);
4147 case 'v': /* Print our subcommands and print versions. */
4149 /* If they do anything other than exactly `-v', don't set
4150 verbose_flag; rather, continue on to give the error. */
4169 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4174 /* Forward scan, just in case -S, -E or -c is specified
4181 if (argv
[j
][0] == '-')
4183 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4189 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4190 j
+= skip
- (argv
[j
][2] != 0);
4191 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4198 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4200 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4202 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4204 /* Save the output name in case -save-temps=obj was used. */
4205 if ((p
[1] == 0) && argv
[i
+ 1])
4206 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4208 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4214 #ifdef MODIFY_TARGET_NAME
4215 is_modify_target_name
= 0;
4217 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4218 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4220 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4221 + strlen (spec_machine
));
4224 int made_addition
= 0;
4226 is_modify_target_name
= 1;
4227 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4229 if (modify_target
[j
].add_del
== DELETE
4230 && (! strncmp (q
, modify_target
[j
].str
,
4231 strlen (modify_target
[j
].str
))))
4232 p
+= strlen (modify_target
[j
].str
);
4233 else if (modify_target
[j
].add_del
== ADD
4234 && ! made_addition
&& *p
== '-')
4236 for (r
= modify_target
[j
].str
; *r
!= 0; )
4244 spec_machine
= new_name
;
4247 if (is_modify_target_name
)
4253 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4254 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4255 else if (WORD_SWITCH_TAKES_ARG (p
))
4256 i
+= WORD_SWITCH_TAKES_ARG (p
);
4266 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4267 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4268 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4270 save_temps_length
= strlen (save_temps_prefix
);
4271 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4274 save_temps_length
-= strlen (temp
);
4275 save_temps_prefix
[save_temps_length
] = '\0';
4279 else if (save_temps_prefix
!= NULL
)
4281 free (save_temps_prefix
);
4282 save_temps_prefix
= NULL
;
4285 if (save_temps_flag
&& use_pipes
)
4287 /* -save-temps overrides -pipe, so that temp files are produced */
4288 if (save_temps_flag
)
4289 error ("warning: -pipe ignored because -save-temps specified");
4295 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4297 if (gcd
&& gcd
[0] == '-')
4300 compare_debug_opt
= gcd
;
4303 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4306 compare_debug_opt
= "-gtoggle";
4310 else if (compare_debug
< 0)
4313 gcc_assert (!compare_debug_opt
);
4316 /* Set up the search paths. We add directories that we expect to
4317 contain GNU Toolchain components before directories specified by
4318 the machine description so that we will find GNU components (like
4319 the GNU assembler) before those of the host system. */
4321 /* If we don't know where the toolchain has been installed, use the
4322 configured-in locations. */
4323 if (!gcc_exec_prefix
)
4326 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4327 PREFIX_PRIORITY_LAST
, 1, 0);
4328 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4329 PREFIX_PRIORITY_LAST
, 2, 0);
4330 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4331 PREFIX_PRIORITY_LAST
, 2, 0);
4333 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4334 PREFIX_PRIORITY_LAST
, 1, 0);
4337 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4338 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4339 dir_separator_str
, NULL
);
4341 /* Look for tools relative to the location from which the driver is
4342 running, or, if that is not available, the configured prefix. */
4344 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4345 spec_machine
, dir_separator_str
,
4346 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4348 add_prefix (&exec_prefixes
,
4349 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4350 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4351 add_prefix (&startfile_prefixes
,
4352 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4353 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4355 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4356 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4357 then consider it to relocate with the rest of the GCC installation
4358 if GCC_EXEC_PREFIX is set.
4359 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4360 if (target_system_root
&& gcc_exec_prefix
)
4362 char *tmp_prefix
= get_relative_prefix (argv
[0],
4363 standard_bindir_prefix
,
4364 target_system_root
);
4365 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4367 target_system_root
= tmp_prefix
;
4368 target_system_root_changed
= 1;
4373 /* More prefixes are enabled in main, after we read the specs file
4374 and determine whether this is cross-compilation or not. */
4376 /* Then create the space for the vectors and scan again. */
4378 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4379 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4382 last_language_n_infiles
= -1;
4384 /* This, time, copy the text of each switch and store a pointer
4385 to the copy in the vector of switches.
4386 Store all the infiles in their vector. */
4388 for (i
= 1; i
< argc
; i
++)
4390 /* Just skip the switches that were handled by the preceding loop. */
4391 #ifdef MODIFY_TARGET_NAME
4392 is_modify_target_name
= 0;
4394 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4395 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4396 is_modify_target_name
= 1;
4398 if (is_modify_target_name
)
4402 if (! strncmp (argv
[i
], "-Wa,", 4))
4404 else if (! strncmp (argv
[i
], "-Wp,", 4))
4406 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4408 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4410 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4412 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4414 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4416 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4418 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4420 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4422 else if (! strcmp (argv
[i
], "-print-sysroot"))
4424 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4426 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4428 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4430 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4431 target_system_root_changed
= 1;
4433 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4435 /* Compensate for the +e options to the C++ front-end;
4436 they're there simply for cfront call-compatibility. We do
4437 some magic in default_compilers to pass them down properly.
4438 Note we deliberately start at the `+' here, to avoid passing
4439 -e0 or -e1 down into the linker. */
4440 switches
[n_switches
].part1
= &argv
[i
][0];
4441 switches
[n_switches
].args
= 0;
4442 switches
[n_switches
].live_cond
= 0;
4443 switches
[n_switches
].validated
= 0;
4446 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4449 /* Split the argument at commas. */
4451 for (j
= 4; argv
[i
][j
]; j
++)
4452 if (argv
[i
][j
] == ',')
4454 infiles
[n_infiles
].language
= "*";
4455 infiles
[n_infiles
++].name
4456 = save_string (argv
[i
] + prev
, j
- prev
);
4459 /* Record the part after the last comma. */
4460 infiles
[n_infiles
].language
= "*";
4461 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4463 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4465 infiles
[n_infiles
].language
= "*";
4466 infiles
[n_infiles
++].name
= argv
[++i
];
4468 /* Xassembler and Xpreprocessor were already handled in the first argv
4469 scan, so all we need to do here is ignore them and their argument. */
4470 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4472 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4474 else if (strcmp (argv
[i
], "-l") == 0)
4475 { /* POSIX allows separation of -l and the lib arg;
4476 canonicalize by concatenating -l with its arg */
4477 infiles
[n_infiles
].language
= "*";
4478 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4480 else if (strncmp (argv
[i
], "-l", 2) == 0)
4482 infiles
[n_infiles
].language
= "*";
4483 infiles
[n_infiles
++].name
= argv
[i
];
4485 else if (strcmp (argv
[i
], "-wrapper") == 0)
4487 else if (strcmp (argv
[i
], "-specs") == 0)
4489 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4491 else if (strcmp (argv
[i
], "-time") == 0)
4493 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4495 else if (strcmp (argv
[i
], "-###") == 0)
4497 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4499 const char *p
= &argv
[i
][1];
4504 if (p
[1] == 0 && i
+ 1 == argc
)
4505 fatal ("argument to '-x' is missing");
4507 spec_lang
= argv
[++i
];
4510 if (! strcmp (spec_lang
, "none"))
4511 /* Suppress the warning if -xnone comes after the last input
4512 file, because alternate command interfaces like g++ might
4513 find it useful to place -xnone after each input file. */
4516 last_language_n_infiles
= n_infiles
;
4519 switches
[n_switches
].part1
= p
;
4520 /* Deal with option arguments in separate argv elements. */
4521 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4522 || WORD_SWITCH_TAKES_ARG (p
))
4525 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4529 /* Count only the option arguments in separate argv elements. */
4530 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4532 if (i
+ n_args
>= argc
)
4533 fatal ("argument to '-%s' is missing", p
);
4534 switches
[n_switches
].args
4535 = XNEWVEC (const char *, n_args
+ 1);
4537 switches
[n_switches
].args
[j
++] = argv
[++i
];
4538 /* Null-terminate the vector. */
4539 switches
[n_switches
].args
[j
] = 0;
4541 else if (strchr (switches_need_spaces
, c
))
4543 /* On some systems, ld cannot handle some options without
4544 a space. So split the option from its argument. */
4545 char *part1
= XNEWVEC (char, 2);
4549 switches
[n_switches
].part1
= part1
;
4550 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4551 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4552 switches
[n_switches
].args
[1] = 0;
4555 switches
[n_switches
].args
= 0;
4557 switches
[n_switches
].live_cond
= 0;
4558 switches
[n_switches
].validated
= 0;
4559 switches
[n_switches
].ordering
= 0;
4560 /* These are always valid, since gcc.c itself understands the
4561 first four and gfortranspec.c understands -static-libgfortran. */
4562 if (!strcmp (p
, "save-temps")
4563 || !strcmp (p
, "static-libgcc")
4564 || !strcmp (p
, "shared-libgcc")
4565 || !strcmp (p
, "pipe")
4566 || !strcmp (p
, "static-libgfortran"))
4567 switches
[n_switches
].validated
= 1;
4570 char ch
= switches
[n_switches
].part1
[0];
4572 switches
[n_switches
].validated
= 1;
4578 const char *p
= strchr (argv
[i
], '@');
4580 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4581 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4584 fname
= xstrdup (argv
[i
]);
4587 fname
= (char *)xmalloc (p
- argv
[i
] + 1);
4588 memcpy (fname
, argv
[i
], p
- argv
[i
]);
4589 fname
[p
- argv
[i
]] = '\0';
4592 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4594 perror_with_name (fname
);
4599 infiles
[n_infiles
].language
= spec_lang
;
4600 infiles
[n_infiles
++].name
= argv
[i
];
4607 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4608 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4610 if (compare_debug
== 2 || compare_debug
== 3)
4612 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4615 switches
[n_switches
].args
= 0;
4616 switches
[n_switches
].live_cond
= 0;
4617 switches
[n_switches
].validated
= 0;
4618 switches
[n_switches
].ordering
= 0;
4623 /* Ensure we only invoke each subprocess once. */
4624 if (print_subprocess_help
|| print_help_list
|| print_version
)
4628 /* Create a dummy input file, so that we can pass
4629 the help option on to the various sub-processes. */
4630 infiles
[0].language
= "c";
4631 infiles
[0].name
= "help-dummy";
4634 switches
[n_switches
].part1
= 0;
4635 infiles
[n_infiles
].name
= 0;
4638 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4639 and place that in the environment. */
4642 set_collect_gcc_options (void)
4647 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4649 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4650 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4653 for (i
= 0; (int) i
< n_switches
; i
++)
4655 const char *const *args
;
4658 obstack_grow (&collect_obstack
, " ", 1);
4662 /* Ignore elided switches. */
4663 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4666 obstack_grow (&collect_obstack
, "'-", 2);
4667 q
= switches
[i
].part1
;
4668 while ((p
= strchr (q
, '\'')))
4670 obstack_grow (&collect_obstack
, q
, p
- q
);
4671 obstack_grow (&collect_obstack
, "'\\''", 4);
4674 obstack_grow (&collect_obstack
, q
, strlen (q
));
4675 obstack_grow (&collect_obstack
, "'", 1);
4677 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4679 obstack_grow (&collect_obstack
, " '", 2);
4681 while ((p
= strchr (q
, '\'')))
4683 obstack_grow (&collect_obstack
, q
, p
- q
);
4684 obstack_grow (&collect_obstack
, "'\\''", 4);
4687 obstack_grow (&collect_obstack
, q
, strlen (q
));
4688 obstack_grow (&collect_obstack
, "'", 1);
4691 obstack_grow (&collect_obstack
, "\0", 1);
4692 xputenv (XOBFINISH (&collect_obstack
, char *));
4695 /* Process a spec string, accumulating and running commands. */
4697 /* These variables describe the input file name.
4698 input_file_number is the index on outfiles of this file,
4699 so that the output file name can be stored for later use by %o.
4700 input_basename is the start of the part of the input file
4701 sans all directory names, and basename_length is the number
4702 of characters starting there excluding the suffix .c or whatever. */
4704 static const char *input_filename
;
4705 static int input_file_number
;
4706 size_t input_filename_length
;
4707 static int basename_length
;
4708 static int suffixed_basename_length
;
4709 static const char *input_basename
;
4710 static const char *input_suffix
;
4711 #ifndef HOST_LACKS_INODE_NUMBERS
4712 static struct stat input_stat
;
4714 static int input_stat_set
;
4716 /* The compiler used to process the current input file. */
4717 static struct compiler
*input_file_compiler
;
4719 /* These are variables used within do_spec and do_spec_1. */
4721 /* Nonzero if an arg has been started and not yet terminated
4722 (with space, tab or newline). */
4723 static int arg_going
;
4725 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4726 is a temporary file name. */
4727 static int delete_this_arg
;
4729 /* Nonzero means %w has been seen; the next arg to be terminated
4730 is the output file name of this compilation. */
4731 static int this_is_output_file
;
4733 /* Nonzero means %s has been seen; the next arg to be terminated
4734 is the name of a library file and we should try the standard
4735 search dirs for it. */
4736 static int this_is_library_file
;
4738 /* Nonzero means %T has been seen; the next arg to be terminated
4739 is the name of a linker script and we should try all of the
4740 standard search dirs for it. If it is found insert a --script
4741 command line switch and then substitute the full path in place,
4742 otherwise generate an error message. */
4743 static int this_is_linker_script
;
4745 /* Nonzero means that the input of this command is coming from a pipe. */
4746 static int input_from_pipe
;
4748 /* Nonnull means substitute this for any suffix when outputting a switches
4750 static const char *suffix_subst
;
4752 /* If there is an argument being accumulated, terminate it and store it. */
4755 end_going_arg (void)
4761 obstack_1grow (&obstack
, 0);
4762 string
= XOBFINISH (&obstack
, const char *);
4763 if (this_is_library_file
)
4764 string
= find_file (string
);
4765 if (this_is_linker_script
)
4767 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4769 if (full_script_path
== NULL
)
4771 error (_("unable to locate default linker script '%s' in the library search paths"), string
);
4772 /* Script was not found on search path. */
4775 store_arg ("--script", false, false);
4776 string
= full_script_path
;
4778 store_arg (string
, delete_this_arg
, this_is_output_file
);
4779 if (this_is_output_file
)
4780 outfiles
[input_file_number
] = string
;
4786 /* Parse the WRAPPER string which is a comma separated list of the command line
4787 and insert them into the beginning of argbuf. */
4790 insert_wrapper (const char *wrapper
)
4794 char *buf
= xstrdup (wrapper
);
4803 while ((p
= strchr (p
, ',')) != NULL
);
4805 if (argbuf_index
+ n
>= argbuf_length
)
4807 argbuf_length
= argbuf_length
* 2;
4808 while (argbuf_length
< argbuf_index
+ n
)
4810 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4812 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4813 argbuf
[i
+ n
] = argbuf
[i
];
4826 while ((p
= strchr (p
, ',')) != NULL
);
4827 gcc_assert (i
== n
);
4831 /* Process the spec SPEC and run the commands specified therein.
4832 Returns 0 if the spec is successfully processed; -1 if failed. */
4835 do_spec (const char *spec
)
4839 value
= do_spec_2 (spec
);
4841 /* Force out any unfinished command.
4842 If -pipe, this forces out the last command if it ended in `|'. */
4845 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4848 set_collect_gcc_options ();
4850 if (argbuf_index
> 0)
4858 do_spec_2 (const char *spec
)
4864 delete_this_arg
= 0;
4865 this_is_output_file
= 0;
4866 this_is_library_file
= 0;
4867 this_is_linker_script
= 0;
4868 input_from_pipe
= 0;
4869 suffix_subst
= NULL
;
4871 result
= do_spec_1 (spec
, 0, NULL
);
4879 /* Process the given spec string and add any new options to the end
4880 of the switches/n_switches array. */
4883 do_option_spec (const char *name
, const char *spec
)
4885 unsigned int i
, value_count
, value_len
;
4886 const char *p
, *q
, *value
;
4887 char *tmp_spec
, *tmp_spec_p
;
4889 if (configure_default_options
[0].name
== NULL
)
4892 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4893 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4895 if (i
== ARRAY_SIZE (configure_default_options
))
4898 value
= configure_default_options
[i
].value
;
4899 value_len
= strlen (value
);
4901 /* Compute the size of the final spec. */
4904 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4910 /* Replace each %(VALUE) by the specified value. */
4911 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4912 + value_count
* (value_len
- strlen ("%(VALUE)")));
4913 tmp_spec_p
= tmp_spec
;
4915 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4917 memcpy (tmp_spec_p
, q
, p
- q
);
4918 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4919 memcpy (tmp_spec_p
, value
, value_len
);
4920 tmp_spec_p
+= value_len
;
4921 q
= p
+ strlen ("%(VALUE)");
4923 strcpy (tmp_spec_p
, q
);
4925 do_self_spec (tmp_spec
);
4928 /* Process the given spec string and add any new options to the end
4929 of the switches/n_switches array. */
4932 do_self_spec (const char *spec
)
4937 do_spec_1 (" ", 0, NULL
);
4939 /* Mark %<S switches processed by do_self_spec to be ignored permanently.
4940 do_self_specs adds the replacements to switches array, so it shouldn't
4941 be processed afterwards. */
4942 for (i
= 0; i
< n_switches
; i
++)
4943 if ((switches
[i
].live_cond
& SWITCH_IGNORE
))
4944 switches
[i
].live_cond
|= SWITCH_IGNORE_PERMANENTLY
;
4946 if (argbuf_index
> 0)
4948 switches
= XRESIZEVEC (struct switchstr
, switches
,
4949 n_switches
+ argbuf_index
+ 1);
4951 for (i
= 0; i
< argbuf_index
; i
++)
4953 struct switchstr
*sw
;
4954 const char *p
= argbuf
[i
];
4957 /* Each switch should start with '-'. */
4959 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4964 sw
= &switches
[n_switches
++];
4970 /* Deal with option arguments in separate argv elements. */
4971 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4972 || WORD_SWITCH_TAKES_ARG (p
))
4975 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4979 /* Count only the option arguments in separate argv elements. */
4980 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4982 if (i
+ n_args
>= argbuf_index
)
4983 fatal ("argument to '-%s' is missing", p
);
4985 = XNEWVEC (const char *, n_args
+ 1);
4987 sw
->args
[j
++] = argbuf
[++i
];
4988 /* Null-terminate the vector. */
4991 else if (strchr (switches_need_spaces
, c
))
4993 /* On some systems, ld cannot handle some options without
4994 a space. So split the option from its argument. */
4995 char *part1
= XNEWVEC (char, 2);
5000 sw
->args
= XNEWVEC (const char *, 2);
5001 sw
->args
[0] = xstrdup (p
+1);
5008 switches
[n_switches
].part1
= 0;
5012 /* Callback for processing %D and %I specs. */
5014 struct spec_path_info
{
5019 bool separate_options
;
5023 spec_path (char *path
, void *data
)
5025 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5029 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5032 if (info
->append_len
!= 0)
5034 len
= strlen (path
);
5035 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5038 if (!is_directory (path
, true))
5041 do_spec_1 (info
->option
, 1, NULL
);
5042 if (info
->separate_options
)
5043 do_spec_1 (" ", 0, NULL
);
5045 if (info
->append_len
== 0)
5047 len
= strlen (path
);
5048 save
= path
[len
- 1];
5049 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5050 path
[len
- 1] = '\0';
5053 do_spec_1 (path
, 1, NULL
);
5054 do_spec_1 (" ", 0, NULL
);
5056 /* Must not damage the original path. */
5057 if (info
->append_len
== 0)
5058 path
[len
- 1] = save
;
5063 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5067 create_at_file (char **argv
)
5069 char *temp_file
= make_temp_file ("");
5070 char *at_argument
= concat ("@", temp_file
, NULL
);
5071 FILE *f
= fopen (temp_file
, "w");
5075 fatal ("could not open temporary response file %s",
5078 status
= writeargv (argv
, f
);
5081 fatal ("could not write to temporary response file %s",
5084 status
= fclose (f
);
5087 fatal ("could not close temporary response file %s",
5090 store_arg (at_argument
, 0, 0);
5092 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5095 /* True if we should compile INFILE. */
5098 compile_input_file_p (struct infile
*infile
)
5100 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5101 if (infile
->incompiler
== input_file_compiler
)
5106 /* Process the sub-spec SPEC as a portion of a larger spec.
5107 This is like processing a whole spec except that we do
5108 not initialize at the beginning and we do not supply a
5109 newline by default at the end.
5110 INSWITCH nonzero means don't process %-sequences in SPEC;
5111 in this case, % is treated as an ordinary character.
5112 This is used while substituting switches.
5113 INSWITCH nonzero also causes SPC not to terminate an argument.
5115 Value is zero unless a line was finished
5116 and the command on that line reported an error. */
5119 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5121 const char *p
= spec
;
5127 /* If substituting a switch, treat all chars like letters.
5128 Otherwise, NL, SPC, TAB and % are special. */
5129 switch (inswitch
? 'a' : c
)
5134 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5136 /* A `|' before the newline means use a pipe here,
5137 but only if -pipe was specified.
5138 Otherwise, execute now and don't pass the `|' as an arg. */
5141 input_from_pipe
= 1;
5148 set_collect_gcc_options ();
5150 if (argbuf_index
> 0)
5156 /* Reinitialize for a new command, and for a new argument. */
5159 delete_this_arg
= 0;
5160 this_is_output_file
= 0;
5161 this_is_library_file
= 0;
5162 this_is_linker_script
= 0;
5163 input_from_pipe
= 0;
5170 obstack_1grow (&obstack
, c
);
5178 /* Reinitialize for a new argument. */
5179 delete_this_arg
= 0;
5180 this_is_output_file
= 0;
5181 this_is_library_file
= 0;
5182 this_is_linker_script
= 0;
5189 fatal ("spec '%s' invalid", spec
);
5192 if (save_temps_length
)
5193 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5195 obstack_grow (&obstack
, input_basename
, basename_length
);
5196 if (compare_debug
< 0)
5197 obstack_grow (&obstack
, ".gk", 3);
5202 if (save_temps_length
)
5203 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5205 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5206 if (compare_debug
< 0)
5207 obstack_grow (&obstack
, ".gk", 3);
5212 delete_this_arg
= 2;
5215 /* Dump out the directories specified with LIBRARY_PATH,
5216 followed by the absolute directories
5217 that we search for startfiles. */
5220 struct spec_path_info info
;
5223 info
.append_len
= 0;
5224 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5225 /* Used on systems which record the specified -L dirs
5226 and use them to search for dynamic linking.
5227 Relative directories always come from -B,
5228 and it is better not to use them for searching
5229 at run time. In particular, stage1 loses. */
5230 info
.omit_relative
= true;
5232 info
.omit_relative
= false;
5234 info
.separate_options
= false;
5236 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5241 /* %efoo means report an error with `foo' as error message
5242 and don't execute any more commands for this file. */
5246 while (*p
!= 0 && *p
!= '\n')
5248 buf
= (char *) alloca (p
- q
+ 1);
5249 strncpy (buf
, q
, p
- q
);
5256 /* %nfoo means report a notice with `foo' on stderr. */
5260 while (*p
!= 0 && *p
!= '\n')
5262 buf
= (char *) alloca (p
- q
+ 1);
5263 strncpy (buf
, q
, p
- q
);
5265 notice ("%s\n", buf
);
5275 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5276 defined, and it is not a directory, and it is
5277 writable, use it. Otherwise, treat this like any
5278 other temporary file. */
5280 if ((!save_temps_flag
)
5281 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5282 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5284 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5285 strlen (HOST_BIT_BUCKET
));
5286 delete_this_arg
= 0;
5291 goto create_temp_file
;
5295 obstack_1grow (&obstack
, '-');
5296 delete_this_arg
= 0;
5299 /* consume suffix */
5300 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5302 if (p
[0] == '%' && p
[1] == 'O')
5307 goto create_temp_file
;
5311 /* consume suffix */
5312 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5314 if (p
[0] == '%' && p
[1] == 'O')
5319 goto create_temp_file
;
5325 struct temp_name
*t
;
5327 const char *suffix
= p
;
5328 char *saved_suffix
= NULL
;
5330 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5332 suffix_length
= p
- suffix
;
5333 if (p
[0] == '%' && p
[1] == 'O')
5336 /* We don't support extra suffix characters after %O. */
5337 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5338 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5339 if (suffix_length
== 0)
5340 suffix
= TARGET_OBJECT_SUFFIX
;
5344 = XNEWVEC (char, suffix_length
5345 + strlen (TARGET_OBJECT_SUFFIX
));
5346 strncpy (saved_suffix
, suffix
, suffix_length
);
5347 strcpy (saved_suffix
+ suffix_length
,
5348 TARGET_OBJECT_SUFFIX
);
5350 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5353 if (compare_debug
< 0)
5355 suffix
= concat (".gk", suffix
, NULL
);
5359 /* If -save-temps=obj and -o were specified, use that for the
5361 if (save_temps_length
)
5364 temp_filename_length
5365 = save_temps_length
+ suffix_length
+ 1;
5366 tmp
= (char *) alloca (temp_filename_length
);
5367 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5368 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5369 tmp
[save_temps_length
+ suffix_length
] = '\0';
5370 temp_filename
= save_string (tmp
,
5371 temp_filename_length
+ 1);
5372 obstack_grow (&obstack
, temp_filename
,
5373 temp_filename_length
);
5375 delete_this_arg
= 0;
5379 /* If the input_filename has the same suffix specified
5380 for the %g, %u, or %U, and -save-temps is specified,
5381 we could end up using that file as an intermediate
5382 thus clobbering the user's source file (.e.g.,
5383 gcc -save-temps foo.s would clobber foo.s with the
5384 output of cpp0). So check for this condition and
5385 generate a temp file as the intermediate. */
5387 if (save_temps_flag
)
5390 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5391 tmp
= (char *) alloca (temp_filename_length
);
5392 memcpy (tmp
, input_basename
, basename_length
);
5393 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5394 tmp
[basename_length
+ suffix_length
] = '\0';
5395 temp_filename
= tmp
;
5397 if (strcmp (temp_filename
, input_filename
) != 0)
5399 #ifndef HOST_LACKS_INODE_NUMBERS
5400 struct stat st_temp
;
5402 /* Note, set_input() resets input_stat_set to 0. */
5403 if (input_stat_set
== 0)
5405 input_stat_set
= stat (input_filename
, &input_stat
);
5406 if (input_stat_set
>= 0)
5410 /* If we have the stat for the input_filename
5411 and we can do the stat for the temp_filename
5412 then the they could still refer to the same
5413 file if st_dev/st_ino's are the same. */
5414 if (input_stat_set
!= 1
5415 || stat (temp_filename
, &st_temp
) < 0
5416 || input_stat
.st_dev
!= st_temp
.st_dev
5417 || input_stat
.st_ino
!= st_temp
.st_ino
)
5419 /* Just compare canonical pathnames. */
5420 char* input_realname
= lrealpath (input_filename
);
5421 char* temp_realname
= lrealpath (temp_filename
);
5422 bool files_differ
= strcmp (input_realname
, temp_realname
);
5423 free (input_realname
);
5424 free (temp_realname
);
5428 temp_filename
= save_string (temp_filename
,
5429 temp_filename_length
+ 1);
5430 obstack_grow (&obstack
, temp_filename
,
5431 temp_filename_length
);
5433 delete_this_arg
= 0;
5439 /* See if we already have an association of %g/%u/%U and
5441 for (t
= temp_names
; t
; t
= t
->next
)
5442 if (t
->length
== suffix_length
5443 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5444 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5447 /* Make a new association if needed. %u and %j
5449 if (t
== 0 || c
== 'u' || c
== 'j')
5453 t
= XNEW (struct temp_name
);
5454 t
->next
= temp_names
;
5457 t
->length
= suffix_length
;
5460 t
->suffix
= saved_suffix
;
5461 saved_suffix
= NULL
;
5464 t
->suffix
= save_string (suffix
, suffix_length
);
5465 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5466 temp_filename
= make_temp_file (t
->suffix
);
5467 temp_filename_length
= strlen (temp_filename
);
5468 t
->filename
= temp_filename
;
5469 t
->filename_length
= temp_filename_length
;
5473 free (saved_suffix
);
5475 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5476 delete_this_arg
= 1;
5484 if (at_file_supplied
)
5486 /* We are going to expand `%i' to `@FILE', where FILE
5487 is a newly-created temporary filename. The filenames
5488 that would usually be expanded in place of %o will be
5489 written to the temporary file. */
5494 for (i
= 0; i
< n_infiles
; i
++)
5495 if (compile_input_file_p (&infiles
[i
]))
5498 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5500 /* Copy the strings over. */
5501 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5502 if (compile_input_file_p (&infiles
[i
]))
5504 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5505 infiles
[i
].compiled
= true;
5510 create_at_file (argv
);
5513 for (i
= 0; (int) i
< n_infiles
; i
++)
5514 if (compile_input_file_p (&infiles
[i
]))
5516 store_arg (infiles
[i
].name
, 0, 0);
5517 infiles
[i
].compiled
= true;
5522 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5529 struct spec_path_info info
;
5533 do_spec_1 ("-imultilib", 1, NULL
);
5534 /* Make this a separate argument. */
5535 do_spec_1 (" ", 0, NULL
);
5536 do_spec_1 (multilib_dir
, 1, NULL
);
5537 do_spec_1 (" ", 0, NULL
);
5540 if (gcc_exec_prefix
)
5542 do_spec_1 ("-iprefix", 1, NULL
);
5543 /* Make this a separate argument. */
5544 do_spec_1 (" ", 0, NULL
);
5545 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5546 do_spec_1 (" ", 0, NULL
);
5549 if (target_system_root_changed
||
5550 (target_system_root
&& target_sysroot_hdrs_suffix
))
5552 do_spec_1 ("-isysroot", 1, NULL
);
5553 /* Make this a separate argument. */
5554 do_spec_1 (" ", 0, NULL
);
5555 do_spec_1 (target_system_root
, 1, NULL
);
5556 if (target_sysroot_hdrs_suffix
)
5557 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5558 do_spec_1 (" ", 0, NULL
);
5561 info
.option
= "-isystem";
5562 info
.append
= "include";
5563 info
.append_len
= strlen (info
.append
);
5564 info
.omit_relative
= false;
5565 info
.separate_options
= true;
5567 for_each_path (&include_prefixes
, false, info
.append_len
,
5570 info
.append
= "include-fixed";
5571 if (*sysroot_hdrs_suffix_spec
)
5572 info
.append
= concat (info
.append
, dir_separator_str
,
5573 multilib_dir
, NULL
);
5574 info
.append_len
= strlen (info
.append
);
5575 for_each_path (&include_prefixes
, false, info
.append_len
,
5582 int max
= n_infiles
;
5583 max
+= lang_specific_extra_outfiles
;
5585 if (HAVE_GNU_LD
&& at_file_supplied
)
5587 /* We are going to expand `%o' to `@FILE', where FILE
5588 is a newly-created temporary filename. The filenames
5589 that would usually be expanded in place of %o will be
5590 written to the temporary file. */
5595 /* Convert OUTFILES into a form suitable for writeargv. */
5597 /* Determine how many are non-NULL. */
5598 for (n_files
= 0, i
= 0; i
< max
; i
++)
5599 n_files
+= outfiles
[i
] != NULL
;
5601 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5603 /* Copy the strings over. */
5604 for (i
= 0, j
= 0; i
< max
; i
++)
5607 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5612 create_at_file (argv
);
5615 for (i
= 0; i
< max
; i
++)
5617 store_arg (outfiles
[i
], 0, 0);
5622 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5627 this_is_library_file
= 1;
5631 this_is_linker_script
= 1;
5635 outfiles
[input_file_number
] = NULL
;
5639 this_is_output_file
= 1;
5644 int cur_index
= argbuf_index
;
5645 /* Handle the {...} following the %W. */
5647 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5648 p
= handle_braces (p
+ 1);
5652 /* If any args were output, mark the last one for deletion
5654 if (argbuf_index
!= cur_index
)
5655 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5659 /* %x{OPTION} records OPTION for %X to output. */
5665 /* Skip past the option value and make a copy. */
5667 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5670 string
= save_string (p1
+ 1, p
- p1
- 2);
5672 /* See if we already recorded this option. */
5673 for (i
= 0; i
< n_linker_options
; i
++)
5674 if (! strcmp (string
, linker_options
[i
]))
5680 /* This option is new; add it. */
5681 add_linker_option (string
, strlen (string
));
5685 /* Dump out the options accumulated previously using %x. */
5687 for (i
= 0; i
< n_linker_options
; i
++)
5689 do_spec_1 (linker_options
[i
], 1, NULL
);
5690 /* Make each accumulated option a separate argument. */
5691 do_spec_1 (" ", 0, NULL
);
5695 /* Dump out the options accumulated previously using -Wa,. */
5697 for (i
= 0; i
< n_assembler_options
; i
++)
5699 do_spec_1 (assembler_options
[i
], 1, NULL
);
5700 /* Make each accumulated option a separate argument. */
5701 do_spec_1 (" ", 0, NULL
);
5705 /* Dump out the options accumulated previously using -Wp,. */
5707 for (i
= 0; i
< n_preprocessor_options
; i
++)
5709 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5710 /* Make each accumulated option a separate argument. */
5711 do_spec_1 (" ", 0, NULL
);
5715 /* Here are digits and numbers that just process
5716 a certain constant string as a spec. */
5719 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5725 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5731 value
= do_spec_1 (asm_spec
, 0, NULL
);
5737 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5744 const char *const spec
5745 = (input_file_compiler
->cpp_spec
5746 ? input_file_compiler
->cpp_spec
5748 value
= do_spec_1 (spec
, 0, NULL
);
5755 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5761 value
= do_spec_1 (link_spec
, 0, NULL
);
5767 value
= do_spec_1 (lib_spec
, 0, NULL
);
5773 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5779 /* We assume there is a directory
5780 separator at the end of this string. */
5781 if (target_system_root
)
5783 obstack_grow (&obstack
, target_system_root
,
5784 strlen (target_system_root
));
5785 if (target_sysroot_suffix
)
5786 obstack_grow (&obstack
, target_sysroot_suffix
,
5787 strlen (target_sysroot_suffix
));
5792 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5797 /* Here we define characters other than letters and digits. */
5800 p
= handle_braces (p
);
5806 p
= handle_spec_function (p
);
5812 obstack_1grow (&obstack
, '%');
5819 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5821 suffix_subst
= save_string (p
- 1, len
+ 1);
5826 /* Henceforth ignore the option(s) matching the pattern
5831 int have_wildcard
= 0;
5834 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5837 if (p
[len
-1] == '*')
5840 for (i
= 0; i
< n_switches
; i
++)
5841 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5842 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5844 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5845 switches
[i
].validated
= 1;
5853 if (soft_matched_part
)
5855 do_spec_1 (soft_matched_part
, 1, NULL
);
5856 do_spec_1 (" ", 0, NULL
);
5859 /* Catch the case where a spec string contains something like
5860 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5861 hand side of the :. */
5862 error ("spec failure: '%%*' has not been initialized by pattern match");
5865 /* Process a string found as the value of a spec given by name.
5866 This feature allows individual machine descriptions
5867 to add and use their own specs.
5868 %[...] modifies -D options the way %P does;
5869 %(...) uses the spec unmodified. */
5871 error ("warning: use of obsolete %%[ operator in specs");
5874 const char *name
= p
;
5875 struct spec_list
*sl
;
5878 /* The string after the S/P is the name of a spec that is to be
5880 while (*p
&& *p
!= ')' && *p
!= ']')
5883 /* See if it's in the list. */
5884 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5885 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5887 name
= *(sl
->ptr_spec
);
5889 notice ("Processing spec %c%s%c, which is '%s'\n",
5890 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5899 value
= do_spec_1 (name
, 0, NULL
);
5905 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5907 const char *y
= name
;
5910 /* Copy all of NAME into BUF, but put __ after
5911 every -D and at the end of each arg. */
5914 if (! strncmp (y
, "-D", 2))
5925 && (*y
== ' ' || *y
== '\t' || *y
== '='
5926 || *y
== '}' || *y
== 0))
5939 value
= do_spec_1 (buf
, 0, NULL
);
5945 /* Discard the closing paren or bracket. */
5952 error ("spec failure: unrecognized spec option '%c'", c
);
5958 /* Backslash: treat next character as ordinary. */
5963 /* Ordinary character: put it into the current argument. */
5964 obstack_1grow (&obstack
, c
);
5968 /* End of string. If we are processing a spec function, we need to
5969 end any pending argument. */
5970 if (processing_spec_function
)
5976 /* Look up a spec function. */
5978 static const struct spec_function
*
5979 lookup_spec_function (const char *name
)
5981 const struct spec_function
*sf
;
5983 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5984 if (strcmp (sf
->name
, name
) == 0)
5990 /* Evaluate a spec function. */
5993 eval_spec_function (const char *func
, const char *args
)
5995 const struct spec_function
*sf
;
5996 const char *funcval
;
5998 /* Saved spec processing context. */
5999 int save_argbuf_index
;
6000 int save_argbuf_length
;
6001 const char **save_argbuf
;
6004 int save_delete_this_arg
;
6005 int save_this_is_output_file
;
6006 int save_this_is_library_file
;
6007 int save_input_from_pipe
;
6008 int save_this_is_linker_script
;
6009 const char *save_suffix_subst
;
6012 sf
= lookup_spec_function (func
);
6014 fatal ("unknown spec function '%s'", func
);
6016 /* Push the spec processing context. */
6017 save_argbuf_index
= argbuf_index
;
6018 save_argbuf_length
= argbuf_length
;
6019 save_argbuf
= argbuf
;
6021 save_arg_going
= arg_going
;
6022 save_delete_this_arg
= delete_this_arg
;
6023 save_this_is_output_file
= this_is_output_file
;
6024 save_this_is_library_file
= this_is_library_file
;
6025 save_this_is_linker_script
= this_is_linker_script
;
6026 save_input_from_pipe
= input_from_pipe
;
6027 save_suffix_subst
= suffix_subst
;
6029 /* Create a new spec processing context, and build the function
6033 if (do_spec_2 (args
) < 0)
6034 fatal ("error in args to spec function '%s'", func
);
6036 /* argbuf_index is an index for the next argument to be inserted, and
6037 so contains the count of the args already inserted. */
6039 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
6041 /* Pop the spec processing context. */
6042 argbuf_index
= save_argbuf_index
;
6043 argbuf_length
= save_argbuf_length
;
6045 argbuf
= save_argbuf
;
6047 arg_going
= save_arg_going
;
6048 delete_this_arg
= save_delete_this_arg
;
6049 this_is_output_file
= save_this_is_output_file
;
6050 this_is_library_file
= save_this_is_library_file
;
6051 this_is_linker_script
= save_this_is_linker_script
;
6052 input_from_pipe
= save_input_from_pipe
;
6053 suffix_subst
= save_suffix_subst
;
6058 /* Handle a spec function call of the form:
6062 ARGS is processed as a spec in a separate context and split into an
6063 argument vector in the normal fashion. The function returns a string
6064 containing a spec which we then process in the caller's context, or
6065 NULL if no processing is required. */
6068 handle_spec_function (const char *p
)
6071 const char *endp
, *funcval
;
6074 processing_spec_function
++;
6076 /* Get the function name. */
6077 for (endp
= p
; *endp
!= '\0'; endp
++)
6079 if (*endp
== '(') /* ) */
6081 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6082 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6083 fatal ("malformed spec function name");
6085 if (*endp
!= '(') /* ) */
6086 fatal ("no arguments for spec function");
6087 func
= save_string (p
, endp
- p
);
6090 /* Get the arguments. */
6091 for (count
= 0; *endp
!= '\0'; endp
++)
6100 else if (*endp
== '(') /* ) */
6105 fatal ("malformed spec function arguments");
6106 args
= save_string (p
, endp
- p
);
6109 /* p now points to just past the end of the spec function expression. */
6111 funcval
= eval_spec_function (func
, args
);
6112 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6118 processing_spec_function
--;
6123 /* Inline subroutine of handle_braces. Returns true if the current
6124 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6126 input_suffix_matches (const char *atom
, const char *end_atom
)
6128 return (input_suffix
6129 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6130 && input_suffix
[end_atom
- atom
] == '\0');
6133 /* Subroutine of handle_braces. Returns true if the current
6134 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6136 input_spec_matches (const char *atom
, const char *end_atom
)
6138 return (input_file_compiler
6139 && input_file_compiler
->suffix
6140 && input_file_compiler
->suffix
[0] != '\0'
6141 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6143 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6146 /* Subroutine of handle_braces. Returns true if a switch
6147 matching the atom bracketed by ATOM and END_ATOM appeared on the
6150 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6153 int len
= end_atom
- atom
;
6154 int plen
= starred
? len
: -1;
6156 for (i
= 0; i
< n_switches
; i
++)
6157 if (!strncmp (switches
[i
].part1
, atom
, len
)
6158 && (starred
|| switches
[i
].part1
[len
] == '\0')
6159 && check_live_switch (i
, plen
))
6165 /* Inline subroutine of handle_braces. Mark all of the switches which
6166 match ATOM (extends to END_ATOM; STARRED indicates whether there
6167 was a star after the atom) for later processing. */
6169 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6172 int len
= end_atom
- atom
;
6173 int plen
= starred
? len
: -1;
6175 for (i
= 0; i
< n_switches
; i
++)
6176 if (!strncmp (switches
[i
].part1
, atom
, len
)
6177 && (starred
|| switches
[i
].part1
[len
] == '\0')
6178 && check_live_switch (i
, plen
))
6179 switches
[i
].ordering
= 1;
6182 /* Inline subroutine of handle_braces. Process all the currently
6183 marked switches through give_switch, and clear the marks. */
6185 process_marked_switches (void)
6189 for (i
= 0; i
< n_switches
; i
++)
6190 if (switches
[i
].ordering
== 1)
6192 switches
[i
].ordering
= 0;
6197 /* Handle a %{ ... } construct. P points just inside the leading {.
6198 Returns a pointer one past the end of the brace block, or 0
6199 if we call do_spec_1 and that returns -1. */
6202 handle_braces (const char *p
)
6204 const char *atom
, *end_atom
;
6205 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6206 const char *orig
= p
;
6214 bool a_must_be_last
= false;
6215 bool ordered_set
= false;
6216 bool disjunct_set
= false;
6217 bool disj_matched
= false;
6218 bool disj_starred
= true;
6219 bool n_way_choice
= false;
6220 bool n_way_matched
= false;
6222 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6229 /* Scan one "atom" (S in the description above of %{}, possibly
6230 with '!', '.', '@', ',', or '*' modifiers). */
6232 a_is_suffix
= false;
6233 a_is_starred
= false;
6234 a_is_negated
= false;
6235 a_is_spectype
= false;
6239 p
++, a_is_negated
= true;
6243 p
++, a_is_suffix
= true;
6245 p
++, a_is_spectype
= true;
6248 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6249 || *p
== ',' || *p
== '.' || *p
== '@')
6254 p
++, a_is_starred
= 1;
6260 /* Substitute the switch(es) indicated by the current atom. */
6262 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6263 || a_is_spectype
|| atom
== end_atom
)
6266 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6269 process_marked_switches ();
6273 /* Substitute some text if the current atom appears as a switch
6275 disjunct_set
= true;
6279 if (atom
== end_atom
)
6281 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6282 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6286 /* An empty term may appear as the last choice of an
6287 N-way choice set; it means "otherwise". */
6288 a_must_be_last
= true;
6289 disj_matched
= !n_way_matched
;
6290 disj_starred
= false;
6294 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6298 disj_starred
= false;
6300 /* Don't bother testing this atom if we already have a
6302 if (!disj_matched
&& !n_way_matched
)
6305 a_matched
= input_suffix_matches (atom
, end_atom
);
6306 else if (a_is_spectype
)
6307 a_matched
= input_spec_matches (atom
, end_atom
);
6309 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6311 if (a_matched
!= a_is_negated
)
6313 disj_matched
= true;
6315 d_end_atom
= end_atom
;
6322 /* Found the body, that is, the text to substitute if the
6323 current disjunction matches. */
6324 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6325 disj_matched
&& !n_way_matched
);
6329 /* If we have an N-way choice, reset state for the next
6333 n_way_choice
= true;
6334 n_way_matched
|= disj_matched
;
6335 disj_matched
= false;
6336 disj_starred
= true;
6337 d_atom
= d_end_atom
= NULL
;
6346 while (*p
++ != '}');
6351 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6356 /* Subroutine of handle_braces. Scan and process a brace substitution body
6357 (X in the description of %{} syntax). P points one past the colon;
6358 ATOM and END_ATOM bracket the first atom which was found to be true
6359 (present) in the current disjunction; STARRED indicates whether all
6360 the atoms in the current disjunction were starred (for syntax validation);
6361 MATCHED indicates whether the disjunction matched or not, and therefore
6362 whether or not the body is to be processed through do_spec_1 or just
6363 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6367 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6368 int starred
, int matched
)
6370 const char *body
, *end_body
;
6371 unsigned int nesting_level
;
6372 bool have_subst
= false;
6374 /* Locate the closing } or ;, honoring nested braces.
6375 Trim trailing whitespace. */
6384 if (!--nesting_level
)
6387 else if (*p
== ';' && nesting_level
== 1)
6389 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6391 else if (*p
== '\0')
6397 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6400 if (have_subst
&& !starred
)
6405 /* Copy the substitution body to permanent storage and execute it.
6406 If have_subst is false, this is a simple matter of running the
6407 body through do_spec_1... */
6408 char *string
= save_string (body
, end_body
- body
);
6411 if (do_spec_1 (string
, 0, NULL
) < 0)
6416 /* ... but if have_subst is true, we have to process the
6417 body once for each matching switch, with %* set to the
6418 variant part of the switch. */
6419 unsigned int hard_match_len
= end_atom
- atom
;
6422 for (i
= 0; i
< n_switches
; i
++)
6423 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6424 && check_live_switch (i
, hard_match_len
))
6426 if (do_spec_1 (string
, 0,
6427 &switches
[i
].part1
[hard_match_len
]) < 0)
6429 /* Pass any arguments this switch has. */
6431 suffix_subst
= NULL
;
6439 fatal ("braced spec body '%s' is invalid", body
);
6442 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6443 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6444 spec, or -1 if either exact match or %* is used.
6446 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6447 whose value does not begin with "no-" is obsoleted by the same value
6448 with the "no-", similarly for a switch with the "no-" prefix. */
6451 check_live_switch (int switchnum
, int prefix_length
)
6453 const char *name
= switches
[switchnum
].part1
;
6456 /* If we already processed this switch and determined if it was
6457 live or not, return our past determination. */
6458 if (switches
[switchnum
].live_cond
!= 0)
6459 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6460 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6461 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE_PERMANENTLY
)
6464 /* In the common case of {<at-most-one-letter>*}, a negating
6465 switch would always match, so ignore that case. We will just
6466 send the conflicting switches to the compiler phase. */
6467 if (prefix_length
>= 0 && prefix_length
<= 1)
6470 /* Now search for duplicate in a manner that depends on the name. */
6474 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6475 if (switches
[i
].part1
[0] == 'O')
6477 switches
[switchnum
].validated
= 1;
6478 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6483 case 'W': case 'f': case 'm':
6484 if (! strncmp (name
+ 1, "no-", 3))
6486 /* We have Xno-YYY, search for XYYY. */
6487 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6488 if (switches
[i
].part1
[0] == name
[0]
6489 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6491 switches
[switchnum
].validated
= 1;
6492 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6498 /* We have XYYY, search for Xno-YYY. */
6499 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6500 if (switches
[i
].part1
[0] == name
[0]
6501 && switches
[i
].part1
[1] == 'n'
6502 && switches
[i
].part1
[2] == 'o'
6503 && switches
[i
].part1
[3] == '-'
6504 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6506 switches
[switchnum
].validated
= 1;
6507 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6514 /* Otherwise the switch is live. */
6515 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6519 /* Pass a switch to the current accumulating command
6520 in the same form that we received it.
6521 SWITCHNUM identifies the switch; it is an index into
6522 the vector of switches gcc received, which is `switches'.
6523 This cannot fail since it never finishes a command line.
6525 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6528 give_switch (int switchnum
, int omit_first_word
)
6530 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6533 if (!omit_first_word
)
6535 do_spec_1 ("-", 0, NULL
);
6536 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6539 if (switches
[switchnum
].args
!= 0)
6542 for (p
= switches
[switchnum
].args
; *p
; p
++)
6544 const char *arg
= *p
;
6546 do_spec_1 (" ", 0, NULL
);
6549 unsigned length
= strlen (arg
);
6552 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6553 if (arg
[length
] == '.')
6555 (CONST_CAST(char *, arg
))[length
] = 0;
6559 do_spec_1 (arg
, 1, NULL
);
6561 (CONST_CAST(char *, arg
))[length
] = '.';
6562 do_spec_1 (suffix_subst
, 1, NULL
);
6565 do_spec_1 (arg
, 1, NULL
);
6569 do_spec_1 (" ", 0, NULL
);
6570 switches
[switchnum
].validated
= 1;
6573 /* Search for a file named NAME trying various prefixes including the
6574 user's -B prefix and some standard ones.
6575 Return the absolute file name found. If nothing is found, return NAME. */
6578 find_file (const char *name
)
6580 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6581 return newname
? newname
: name
;
6584 /* Determine whether a directory exists. If LINKER, return 0 for
6585 certain fixed names not needed by the linker. */
6588 is_directory (const char *path1
, bool linker
)
6595 /* Ensure the string ends with "/.". The resulting path will be a
6596 directory even if the given path is a symbolic link. */
6597 len1
= strlen (path1
);
6598 path
= (char *) alloca (3 + len1
);
6599 memcpy (path
, path1
, len1
);
6601 if (!IS_DIR_SEPARATOR (cp
[-1]))
6602 *cp
++ = DIR_SEPARATOR
;
6606 /* Exclude directories that the linker is known to search. */
6608 && IS_DIR_SEPARATOR (path
[0])
6610 && strncmp (path
+ 1, "lib", 3) == 0)
6612 && strncmp (path
+ 1, "usr", 3) == 0
6613 && IS_DIR_SEPARATOR (path
[4])
6614 && strncmp (path
+ 5, "lib", 3) == 0)))
6617 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6620 /* Set up the various global variables to indicate that we're processing
6621 the input file named FILENAME. */
6624 set_input (const char *filename
)
6628 input_filename
= filename
;
6629 input_filename_length
= strlen (input_filename
);
6630 input_basename
= lbasename (input_filename
);
6632 /* Find a suffix starting with the last period,
6633 and set basename_length to exclude that suffix. */
6634 basename_length
= strlen (input_basename
);
6635 suffixed_basename_length
= basename_length
;
6636 p
= input_basename
+ basename_length
;
6637 while (p
!= input_basename
&& *p
!= '.')
6639 if (*p
== '.' && p
!= input_basename
)
6641 basename_length
= p
- input_basename
;
6642 input_suffix
= p
+ 1;
6647 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6648 we will need to do a stat on the input_filename. The
6649 INPUT_STAT_SET signals that the stat is needed. */
6653 /* On fatal signals, delete all the temporary files. */
6656 fatal_error (int signum
)
6658 signal (signum
, SIG_DFL
);
6659 delete_failure_queue ();
6660 delete_temp_files ();
6661 /* Get the same signal again, this time not handled,
6662 so its normal effect occurs. */
6663 kill (getpid (), signum
);
6666 /* Compare the contents of the two files named CMPFILE[0] and
6667 CMPFILE[1]. Return zero if they're identical, nonzero
6671 compare_files (char *cmpfile
[])
6674 FILE *temp
[2] = { NULL
, NULL
};
6680 void *map
[2] = { NULL
, NULL
};
6682 for (i
= 0; i
< 2; i
++)
6686 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6688 error ("%s: could not determine length of compare-debug file %s",
6689 input_filename
, cmpfile
[i
]);
6694 length
[i
] = st
.st_size
;
6697 if (!ret
&& length
[0] != length
[1])
6699 error ("%s: -fcompare-debug failure (length)", input_filename
);
6704 for (i
= 0; i
< 2; i
++)
6706 int fd
= open (cmpfile
[i
], O_RDONLY
);
6709 error ("%s: could not open compare-debug file %s",
6710 input_filename
, cmpfile
[i
]);
6715 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6718 if (map
[i
] == (void *) MAP_FAILED
)
6727 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6729 error ("%s: -fcompare-debug failure", input_filename
);
6734 for (i
= 0; i
< 2; i
++)
6736 munmap ((caddr_t
) map
[i
], length
[i
]);
6745 for (i
= 0; i
< 2; i
++)
6747 temp
[i
] = fopen (cmpfile
[i
], "r");
6750 error ("%s: could not open compare-debug file %s",
6751 input_filename
, cmpfile
[i
]);
6757 if (!ret
&& temp
[0] && temp
[1])
6761 c0
= fgetc (temp
[0]);
6762 c1
= fgetc (temp
[1]);
6766 error ("%s: -fcompare-debug failure",
6776 for (i
= 1; i
>= 0; i
--)
6785 extern int main (int, char **);
6788 main (int argc
, char **argv
)
6792 int linker_was_run
= 0;
6793 int lang_n_infiles
= 0;
6794 int num_linker_inputs
= 0;
6795 char *explicit_link_files
;
6798 struct user_specs
*uptr
;
6799 char **old_argv
= argv
;
6801 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6802 on ?: in file-scope variable initializations. */
6803 asm_debug
= ASM_DEBUG_SPEC
;
6805 p
= argv
[0] + strlen (argv
[0]);
6806 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6810 xmalloc_set_program_name (programname
);
6812 expandargv (&argc
, &argv
);
6814 /* Determine if any expansions were made. */
6815 if (argv
!= old_argv
)
6816 at_file_supplied
= true;
6818 prune_options (&argc
, &argv
);
6820 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6821 /* Perform host dependent initialization when needed. */
6822 GCC_DRIVER_HOST_INITIALIZATION
;
6825 /* Unlock the stdio streams. */
6826 unlock_std_streams ();
6828 gcc_init_libintl ();
6830 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6831 signal (SIGINT
, fatal_error
);
6833 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6834 signal (SIGHUP
, fatal_error
);
6836 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6837 signal (SIGTERM
, fatal_error
);
6839 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6840 signal (SIGPIPE
, fatal_error
);
6843 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6844 receive the signal. A different setting is inheritable */
6845 signal (SIGCHLD
, SIG_DFL
);
6848 /* Allocate the argument vector. */
6851 obstack_init (&obstack
);
6853 /* Build multilib_select, et. al from the separate lines that make up each
6854 multilib selection. */
6856 const char *const *q
= multilib_raw
;
6859 obstack_init (&multilib_obstack
);
6860 while ((p
= *q
++) != (char *) 0)
6861 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6863 obstack_1grow (&multilib_obstack
, 0);
6864 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6866 q
= multilib_matches_raw
;
6867 while ((p
= *q
++) != (char *) 0)
6868 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6870 obstack_1grow (&multilib_obstack
, 0);
6871 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6873 q
= multilib_exclusions_raw
;
6874 while ((p
= *q
++) != (char *) 0)
6875 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6877 obstack_1grow (&multilib_obstack
, 0);
6878 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6881 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6884 obstack_1grow (&multilib_obstack
, ' ');
6885 obstack_grow (&multilib_obstack
,
6886 multilib_defaults_raw
[i
],
6887 strlen (multilib_defaults_raw
[i
]));
6891 obstack_1grow (&multilib_obstack
, 0);
6892 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6895 #ifdef INIT_ENVIRONMENT
6896 /* Set up any other necessary machine specific environment variables. */
6897 xputenv (INIT_ENVIRONMENT
);
6900 /* Make a table of what switches there are (switches, n_switches).
6901 Make a table of specified input files (infiles, n_infiles).
6902 Decode switches that are handled locally. */
6904 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6906 /* Initialize the vector of specs to just the default.
6907 This means one element containing 0s, as a terminator. */
6909 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6910 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6911 n_compilers
= n_default_compilers
;
6913 /* Read specs from a file if there is one. */
6915 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6916 spec_version
, dir_separator_str
, NULL
);
6917 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6919 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6920 /* Read the specs file unless it is a default one. */
6921 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6922 read_specs (specs_file
, TRUE
);
6926 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6927 for any override of as, ld and libraries. */
6928 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6929 + strlen (just_machine_suffix
) + sizeof ("specs"));
6931 strcpy (specs_file
, standard_exec_prefix
);
6932 strcat (specs_file
, just_machine_suffix
);
6933 strcat (specs_file
, "specs");
6934 if (access (specs_file
, R_OK
) == 0)
6935 read_specs (specs_file
, TRUE
);
6937 /* Process any configure-time defaults specified for the command line
6938 options, via OPTION_DEFAULT_SPECS. */
6939 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6940 do_option_spec (option_default_specs
[i
].name
,
6941 option_default_specs
[i
].spec
);
6943 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6944 of the command line. */
6946 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6947 do_self_spec (driver_self_specs
[i
]);
6951 enum save_temps save
;
6953 if (!compare_debug_second
)
6955 n_switches_debug_check
[1] = n_switches
;
6956 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6959 do_self_spec ("%:compare-debug-self-opt()");
6960 n_switches_debug_check
[0] = n_switches
;
6961 switches_debug_check
[0] = switches
;
6963 n_switches
= n_switches_debug_check
[1];
6964 switches
= switches_debug_check
[1];
6967 /* Avoid crash when computing %j in this early. */
6968 save
= save_temps_flag
;
6969 save_temps_flag
= SAVE_TEMPS_NONE
;
6971 compare_debug
= -compare_debug
;
6972 do_self_spec ("%:compare-debug-self-opt()");
6974 save_temps_flag
= save
;
6976 if (!compare_debug_second
)
6978 n_switches_debug_check
[1] = n_switches
;
6979 switches_debug_check
[1] = switches
;
6980 compare_debug
= -compare_debug
;
6981 n_switches
= n_switches_debug_check
[0];
6982 switches
= switches_debug_check
[0];
6986 /* If not cross-compiling, look for executables in the standard
6988 if (*cross_compile
== '0')
6990 if (*md_exec_prefix
)
6992 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6993 PREFIX_PRIORITY_LAST
, 0, 0);
6997 /* Process sysroot_suffix_spec. */
6998 if (*sysroot_suffix_spec
!= 0
6999 && do_spec_2 (sysroot_suffix_spec
) == 0)
7001 if (argbuf_index
> 1)
7002 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
7003 else if (argbuf_index
== 1)
7004 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
7007 #ifdef HAVE_LD_SYSROOT
7008 /* Pass the --sysroot option to the linker, if it supports that. If
7009 there is a sysroot_suffix_spec, it has already been processed by
7010 this point, so target_system_root really is the system root we
7012 if (target_system_root
)
7014 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7015 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7016 set_spec ("link", XOBFINISH (&obstack
, const char *));
7020 /* Process sysroot_hdrs_suffix_spec. */
7021 if (*sysroot_hdrs_suffix_spec
!= 0
7022 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7024 if (argbuf_index
> 1)
7025 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7026 else if (argbuf_index
== 1)
7027 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
7030 /* Look for startfiles in the standard places. */
7031 if (*startfile_prefix_spec
!= 0
7032 && do_spec_2 (startfile_prefix_spec
) == 0
7033 && do_spec_1 (" ", 0, NULL
) == 0)
7036 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
7037 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
7038 PREFIX_PRIORITY_LAST
, 0, 1);
7040 /* We should eventually get rid of all these and stick to
7041 startfile_prefix_spec exclusively. */
7042 else if (*cross_compile
== '0' || target_system_root
)
7044 if (*md_startfile_prefix
)
7045 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7046 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7048 if (*md_startfile_prefix_1
)
7049 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7050 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7052 /* If standard_startfile_prefix is relative, base it on
7053 standard_exec_prefix. This lets us move the installed tree
7054 as a unit. If GCC_EXEC_PREFIX is defined, base
7055 standard_startfile_prefix on that as well.
7057 If the prefix is relative, only search it for native compilers;
7058 otherwise we will search a directory containing host libraries. */
7059 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7060 add_sysrooted_prefix (&startfile_prefixes
,
7061 standard_startfile_prefix
, "BINUTILS",
7062 PREFIX_PRIORITY_LAST
, 0, 1);
7063 else if (*cross_compile
== '0')
7065 add_prefix (&startfile_prefixes
,
7066 concat (gcc_exec_prefix
7067 ? gcc_exec_prefix
: standard_exec_prefix
,
7069 standard_startfile_prefix
, NULL
),
7070 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7073 /* Sysrooted prefixes are relocated because target_system_root is
7074 also relocated by gcc_exec_prefix. */
7075 if (*standard_startfile_prefix_1
)
7076 add_sysrooted_prefix (&startfile_prefixes
,
7077 standard_startfile_prefix_1
, "BINUTILS",
7078 PREFIX_PRIORITY_LAST
, 0, 1);
7079 if (*standard_startfile_prefix_2
)
7080 add_sysrooted_prefix (&startfile_prefixes
,
7081 standard_startfile_prefix_2
, "BINUTILS",
7082 PREFIX_PRIORITY_LAST
, 0, 1);
7085 /* Process any user specified specs in the order given on the command
7087 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7089 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7091 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7094 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7095 if (gcc_exec_prefix
)
7096 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7097 spec_version
, dir_separator_str
, NULL
);
7099 /* Now we have the specs.
7100 Set the `valid' bits for switches that match anything in any spec. */
7102 validate_all_switches ();
7104 /* Now that we have the switches and the specs, set
7105 the subdirectory based on the options. */
7106 set_multilib_dir ();
7108 /* Set up to remember the pathname of gcc and any options
7109 needed for collect. We use argv[0] instead of programname because
7110 we need the complete pathname. */
7111 obstack_init (&collect_obstack
);
7112 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7113 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
7114 xputenv (XOBFINISH (&collect_obstack
, char *));
7116 /* Set up to remember the pathname of the lto wrapper. */
7118 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
7119 if (lto_wrapper_spec
)
7121 obstack_init (&collect_obstack
);
7122 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7123 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7124 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7125 strlen (lto_wrapper_spec
) + 1);
7126 xputenv (XOBFINISH (&collect_obstack
, char *));
7129 /* Warn about any switches that no pass was interested in. */
7131 for (i
= 0; (int) i
< n_switches
; i
++)
7132 if (! switches
[i
].validated
)
7133 error ("unrecognized option '-%s'", switches
[i
].part1
);
7135 /* Obey some of the options. */
7137 if (print_search_dirs
)
7139 printf (_("install: %s%s\n"),
7140 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7141 gcc_exec_prefix
? "" : machine_suffix
);
7142 printf (_("programs: %s\n"),
7143 build_search_list (&exec_prefixes
, "", false, false));
7144 printf (_("libraries: %s\n"),
7145 build_search_list (&startfile_prefixes
, "", false, true));
7149 if (print_file_name
)
7151 printf ("%s\n", find_file (print_file_name
));
7155 if (print_prog_name
)
7157 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7158 printf ("%s\n", (newname
? newname
: print_prog_name
));
7162 if (print_multi_lib
)
7164 print_multilib_info ();
7168 if (print_multi_directory
)
7170 if (multilib_dir
== NULL
)
7173 printf ("%s\n", multilib_dir
);
7179 if (target_system_root
)
7181 if (target_sysroot_suffix
)
7182 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7184 printf ("%s\n", target_system_root
);
7189 if (print_multi_os_directory
)
7191 if (multilib_os_dir
== NULL
)
7194 printf ("%s\n", multilib_os_dir
);
7198 if (print_sysroot_headers_suffix
)
7200 if (*sysroot_hdrs_suffix_spec
)
7202 printf("%s\n", (target_sysroot_hdrs_suffix
7203 ? target_sysroot_hdrs_suffix
7208 /* The error status indicates that only one set of fixed
7209 headers should be built. */
7210 fatal ("not configured with sysroot headers suffix");
7213 if (print_help_list
)
7219 printf (_("\nFor bug reporting instructions, please see:\n"));
7220 printf ("%s.\n", bug_report_url
);
7225 /* We do not exit here. Instead we have created a fake input file
7226 called 'help-dummy' which needs to be compiled, and we pass this
7227 on the various sub-processes, along with the --help switch.
7228 Ensure their output appears after ours. */
7229 fputc ('\n', stdout
);
7235 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
7237 printf ("Copyright %s 2010 Free Software Foundation, Inc.\n",
7239 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7240 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7245 /* We do not exit here. We use the same mechanism of --help to print
7246 the version of the sub-processes. */
7247 fputc ('\n', stdout
);
7256 notice ("Target: %s\n", spec_machine
);
7257 notice ("Configured with: %s\n", configuration_arguments
);
7259 #ifdef THREAD_MODEL_SPEC
7260 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7261 but there's no point in doing all this processing just to get
7262 thread_model back. */
7263 obstack_init (&obstack
);
7264 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7265 obstack_1grow (&obstack
, '\0');
7266 thrmod
= XOBFINISH (&obstack
, const char *);
7268 thrmod
= thread_model
;
7271 notice ("Thread model: %s\n", thrmod
);
7273 /* compiler_version is truncated at the first space when initialized
7274 from version string, so truncate version_string at the first space
7275 before comparing. */
7276 for (n
= 0; version_string
[n
]; n
++)
7277 if (version_string
[n
] == ' ')
7280 if (! strncmp (version_string
, compiler_version
, n
)
7281 && compiler_version
[n
] == 0)
7282 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
7284 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7285 version_string
, pkgversion_string
, compiler_version
);
7291 if (n_infiles
== added_libraries
)
7292 fatal ("no input files");
7294 /* Make a place to record the compiler output file names
7295 that correspond to the input files. */
7298 i
+= lang_specific_extra_outfiles
;
7299 outfiles
= XCNEWVEC (const char *, i
);
7301 /* Record which files were specified explicitly as link input. */
7303 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7306 combine_inputs
= true;
7308 combine_inputs
= false;
7310 for (i
= 0; (int) i
< n_infiles
; i
++)
7312 const char *name
= infiles
[i
].name
;
7313 struct compiler
*compiler
= lookup_compiler (name
,
7315 infiles
[i
].language
);
7317 if (compiler
&& !(compiler
->combinable
))
7318 combine_inputs
= false;
7320 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7321 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7322 infiles
[i
].incompiler
= compiler
;
7326 input_file_compiler
= compiler
;
7327 infiles
[i
].incompiler
= compiler
;
7331 /* Since there is no compiler for this input file, assume it is a
7333 explicit_link_files
[i
] = 1;
7334 infiles
[i
].incompiler
= NULL
;
7336 infiles
[i
].compiled
= false;
7337 infiles
[i
].preprocessed
= false;
7340 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7341 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7343 if (combine_flag
&& save_temps_flag
)
7345 bool save_combine_inputs
= combine_inputs
;
7346 /* Must do a separate pre-processing pass for C & Objective-C files, to
7347 obtain individual .i files. */
7349 combine_inputs
= false;
7350 for (i
= 0; (int) i
< n_infiles
; i
++)
7352 int this_file_error
= 0;
7354 input_file_number
= i
;
7355 set_input (infiles
[i
].name
);
7356 if (infiles
[i
].incompiler
7357 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7358 input_file_compiler
= infiles
[i
].incompiler
;
7362 if (input_file_compiler
)
7364 if (input_file_compiler
->spec
[0] == '#')
7366 error ("%s: %s compiler not installed on this system",
7367 input_filename
, &input_file_compiler
->spec
[1]);
7368 this_file_error
= 1;
7372 value
= do_spec (input_file_compiler
->spec
);
7373 infiles
[i
].preprocessed
= true;
7374 if (!have_o_argbuf_index
)
7375 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
7376 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7377 infiles
[i
].incompiler
7378 = lookup_compiler (infiles
[i
].name
,
7379 strlen (infiles
[i
].name
),
7380 infiles
[i
].language
);
7383 this_file_error
= 1;
7387 if (this_file_error
)
7389 delete_failure_queue ();
7393 clear_failure_queue ();
7395 combine_inputs
= save_combine_inputs
;
7398 for (i
= 0; (int) i
< n_infiles
; i
++)
7400 int this_file_error
= 0;
7402 /* Tell do_spec what to substitute for %i. */
7404 input_file_number
= i
;
7405 set_input (infiles
[i
].name
);
7407 if (infiles
[i
].compiled
)
7410 /* Use the same thing in %o, unless cp->spec says otherwise. */
7412 outfiles
[i
] = input_filename
;
7414 /* Figure out which compiler from the file's suffix. */
7416 if (! combine_inputs
)
7418 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7419 infiles
[i
].language
);
7421 input_file_compiler
= infiles
[i
].incompiler
;
7423 if (input_file_compiler
)
7425 /* Ok, we found an applicable compiler. Run its spec. */
7427 if (input_file_compiler
->spec
[0] == '#')
7429 error ("%s: %s compiler not installed on this system",
7430 input_filename
, &input_file_compiler
->spec
[1]);
7431 this_file_error
= 1;
7437 if (debug_check_temp_file
[0])
7438 free (debug_check_temp_file
[0]);
7439 debug_check_temp_file
[0] = NULL
;
7441 if (debug_check_temp_file
[1])
7442 free (debug_check_temp_file
[1]);
7443 debug_check_temp_file
[1] = NULL
;
7446 value
= do_spec (input_file_compiler
->spec
);
7447 infiles
[i
].compiled
= true;
7449 this_file_error
= 1;
7450 else if (compare_debug
&& debug_check_temp_file
[0])
7453 error ("Recompiling with -fcompare-debug");
7455 compare_debug
= -compare_debug
;
7456 n_switches
= n_switches_debug_check
[1];
7457 switches
= switches_debug_check
[1];
7459 value
= do_spec (input_file_compiler
->spec
);
7461 compare_debug
= -compare_debug
;
7462 n_switches
= n_switches_debug_check
[0];
7463 switches
= switches_debug_check
[0];
7467 error ("during -fcompare-debug recompilation");
7468 this_file_error
= 1;
7471 gcc_assert (debug_check_temp_file
[1]
7472 && strcmp (debug_check_temp_file
[0],
7473 debug_check_temp_file
[1]));
7476 error ("Comparing final insns dumps");
7478 if (compare_files (debug_check_temp_file
))
7479 this_file_error
= 1;
7484 if (debug_check_temp_file
[0])
7485 free (debug_check_temp_file
[0]);
7486 debug_check_temp_file
[0] = NULL
;
7488 if (debug_check_temp_file
[1])
7489 free (debug_check_temp_file
[1]);
7490 debug_check_temp_file
[1] = NULL
;
7495 /* If this file's name does not contain a recognized suffix,
7496 record it as explicit linker input. */
7499 explicit_link_files
[i
] = 1;
7501 /* Clear the delete-on-failure queue, deleting the files in it
7502 if this compilation failed. */
7504 if (this_file_error
)
7506 delete_failure_queue ();
7509 /* If this compilation succeeded, don't delete those files later. */
7510 clear_failure_queue ();
7513 /* Reset the input file name to the first compile/object file name, for use
7514 with %b in LINK_SPEC. We use the first input file that we can find
7515 a compiler to compile it instead of using infiles.language since for
7516 languages other than C we use aliases that we then lookup later. */
7521 for (i
= 0; i
< n_infiles
; i
++)
7522 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7524 set_input (infiles
[i
].name
);
7529 if (error_count
== 0)
7531 /* Make sure INPUT_FILE_NUMBER points to first available open
7533 input_file_number
= n_infiles
;
7534 if (lang_specific_pre_link ())
7538 /* Determine if there are any linker input files. */
7539 num_linker_inputs
= 0;
7540 for (i
= 0; (int) i
< n_infiles
; i
++)
7541 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7542 num_linker_inputs
++;
7544 /* Run ld to link all the compiler output files. */
7546 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
7548 int tmp
= execution_count
;
7549 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7551 /* We'll use ld if we can't find collect2. */
7552 if (! strcmp (linker_name_spec
, "collect2"))
7554 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7556 linker_name_spec
= "ld";
7559 if (switch_matches (fuse_linker_plugin
,
7560 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
7562 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7563 "liblto_plugin.so", X_OK
,
7565 if (!linker_plugin_file_spec
)
7566 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7568 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7570 if (!lto_libgcc_spec
)
7571 fatal ("could not find libgcc.a");
7573 lto_gcc_spec
= argv
[0];
7575 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7577 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7578 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7580 if (print_subprocess_help
== 1)
7582 printf (_("\nLinker options\n==============\n\n"));
7583 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7584 " to the linker.\n\n"));
7587 value
= do_spec (link_command_spec
);
7590 linker_was_run
= (tmp
!= execution_count
);
7593 /* If options said don't run linker,
7594 complain about input files to be given to the linker. */
7596 if (! linker_was_run
&& error_count
== 0)
7597 for (i
= 0; (int) i
< n_infiles
; i
++)
7598 if (explicit_link_files
[i
]
7599 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7600 error ("%s: linker input file unused because linking not done",
7603 /* Delete some or all of the temporary files we made. */
7606 delete_failure_queue ();
7607 delete_temp_files ();
7609 if (print_help_list
)
7611 printf (("\nFor bug reporting instructions, please see:\n"));
7612 printf ("%s\n", bug_report_url
);
7615 return (signal_count
!= 0 ? 2
7616 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
7620 /* Find the proper compilation spec for the file name NAME,
7621 whose length is LENGTH. LANGUAGE is the specified language,
7622 or 0 if this file is to be passed to the linker. */
7624 static struct compiler
*
7625 lookup_compiler (const char *name
, size_t length
, const char *language
)
7627 struct compiler
*cp
;
7629 /* If this was specified by the user to be a linker input, indicate that. */
7630 if (language
!= 0 && language
[0] == '*')
7633 /* Otherwise, look for the language, if one is spec'd. */
7636 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7637 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7640 error ("language %s not recognized", language
);
7644 /* Look for a suffix. */
7645 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7647 if (/* The suffix `-' matches only the file name `-'. */
7648 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7649 || (strlen (cp
->suffix
) < length
7650 /* See if the suffix matches the end of NAME. */
7651 && !strcmp (cp
->suffix
,
7652 name
+ length
- strlen (cp
->suffix
))
7657 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7658 /* Look again, but case-insensitively this time. */
7660 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7662 if (/* The suffix `-' matches only the file name `-'. */
7663 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7664 || (strlen (cp
->suffix
) < length
7665 /* See if the suffix matches the end of NAME. */
7666 && ((!strcmp (cp
->suffix
,
7667 name
+ length
- strlen (cp
->suffix
))
7668 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7669 && !strcasecmp (cp
->suffix
,
7670 name
+ length
- strlen (cp
->suffix
)))
7676 if (cp
>= compilers
)
7678 if (cp
->spec
[0] != '@')
7679 /* A non-alias entry: return it. */
7682 /* An alias entry maps a suffix to a language.
7683 Search for the language; pass 0 for NAME and LENGTH
7684 to avoid infinite recursion if language not found. */
7685 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7691 save_string (const char *s
, int len
)
7693 char *result
= XNEWVEC (char, len
+ 1);
7695 memcpy (result
, s
, len
);
7701 pfatal_with_name (const char *name
)
7703 perror_with_name (name
);
7704 delete_temp_files ();
7709 perror_with_name (const char *name
)
7711 error ("%s: %s", name
, xstrerror (errno
));
7714 /* Output an error message and exit. */
7717 fancy_abort (const char *file
, int line
, const char *func
)
7719 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7722 /* Output an error message and exit. */
7725 fatal_ice (const char *cmsgid
, ...)
7729 va_start (ap
, cmsgid
);
7731 fprintf (stderr
, "%s: ", programname
);
7732 vfprintf (stderr
, _(cmsgid
), ap
);
7734 fprintf (stderr
, "\n");
7735 delete_temp_files ();
7736 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7740 fatal (const char *cmsgid
, ...)
7744 va_start (ap
, cmsgid
);
7746 fprintf (stderr
, "%s: ", programname
);
7747 vfprintf (stderr
, _(cmsgid
), ap
);
7749 fprintf (stderr
, "\n");
7750 delete_temp_files ();
7754 /* The argument is actually c-format, not gcc-internal-format,
7755 but because functions with identical names are used through
7756 the rest of the compiler with gcc-internal-format, we just
7757 need to hope all users of these functions use the common
7758 subset between c-format and gcc-internal-format. */
7761 error (const char *gmsgid
, ...)
7765 va_start (ap
, gmsgid
);
7766 fprintf (stderr
, "%s: ", programname
);
7767 vfprintf (stderr
, _(gmsgid
), ap
);
7770 fprintf (stderr
, "\n");
7774 notice (const char *cmsgid
, ...)
7778 va_start (ap
, cmsgid
);
7779 vfprintf (stderr
, _(cmsgid
), ap
);
7784 validate_switches_from_spec (const char *spec
)
7786 const char *p
= spec
;
7789 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7790 /* We have a switch spec. */
7791 p
= validate_switches (p
+ 1);
7795 validate_all_switches (void)
7797 struct compiler
*comp
;
7798 struct spec_list
*spec
;
7800 for (comp
= compilers
; comp
->spec
; comp
++)
7801 validate_switches_from_spec (comp
->spec
);
7803 /* Look through the linked list of specs read from the specs file. */
7804 for (spec
= specs
; spec
; spec
= spec
->next
)
7805 validate_switches_from_spec (*spec
->ptr_spec
);
7807 validate_switches_from_spec (link_command_spec
);
7810 /* Look at the switch-name that comes after START
7811 and mark as valid all supplied switches that match it. */
7814 validate_switches (const char *start
)
7816 const char *p
= start
;
7820 bool suffix
= false;
7821 bool starred
= false;
7823 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7832 if (*p
== '.' || *p
== ',')
7836 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7837 || *p
== ',' || *p
== '.' || *p
== '@')
7842 starred
= true, p
++;
7848 /* Mark all matching switches as valid. */
7849 for (i
= 0; i
< n_switches
; i
++)
7850 if (!strncmp (switches
[i
].part1
, atom
, len
)
7851 && (starred
|| switches
[i
].part1
[len
] == 0))
7852 switches
[i
].validated
= 1;
7856 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7859 if (*p
&& p
[-1] == ':')
7861 while (*p
&& *p
!= ';' && *p
!= '}')
7866 if (*p
== '{' || *p
== '<')
7867 p
= validate_switches (p
+1);
7868 else if (p
[0] == 'W' && p
[1] == '{')
7869 p
= validate_switches (p
+2);
7876 if (*p
&& p
[-1] == ';')
7890 static struct mdswitchstr
*mdswitches
;
7891 static int n_mdswitches
;
7893 /* Check whether a particular argument was used. The first time we
7894 canonicalize the switches to keep only the ones we care about. */
7897 used_arg (const char *p
, int len
)
7902 const char *replace
;
7907 static struct mswitchstr
*mswitches
;
7908 static int n_mswitches
;
7913 struct mswitchstr
*matches
;
7917 /* Break multilib_matches into the component strings of string
7918 and replacement string. */
7919 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7924 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7926 q
= multilib_matches
;
7935 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7939 matches
[i
].len
= q
- matches
[i
].str
;
7941 matches
[i
].replace
= ++q
;
7942 while (*q
!= ';' && *q
!= '\0')
7945 goto invalid_matches
;
7948 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7954 /* Now build a list of the replacement string for switches that we care
7955 about. Make sure we allocate at least one entry. This prevents
7956 xmalloc from calling fatal, and prevents us from re-executing this
7959 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7960 for (i
= 0; i
< n_switches
; i
++)
7961 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7963 int xlen
= strlen (switches
[i
].part1
);
7964 for (j
= 0; j
< cnt
; j
++)
7965 if (xlen
== matches
[j
].len
7966 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7968 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7969 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7970 mswitches
[n_mswitches
].replace
= (char *) 0;
7971 mswitches
[n_mswitches
].rep_len
= 0;
7977 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7978 on the command line nor any options mutually incompatible with
7980 for (i
= 0; i
< n_mdswitches
; i
++)
7984 for (q
= multilib_options
; *q
!= '\0'; q
++)
7990 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7991 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7993 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8000 if (*q
!= ' ' && *q
!= '\0')
8002 while (*r
!= ' ' && *r
!= '\0')
8005 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
8008 if (used_arg (r
, q
- r
))
8013 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8014 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8015 mswitches
[n_mswitches
].replace
= (char *) 0;
8016 mswitches
[n_mswitches
].rep_len
= 0;
8029 for (i
= 0; i
< n_mswitches
; i
++)
8030 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8037 default_arg (const char *p
, int len
)
8041 for (i
= 0; i
< n_mdswitches
; i
++)
8042 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8048 /* Work out the subdirectory to use based on the options. The format of
8049 multilib_select is a list of elements. Each element is a subdirectory
8050 name followed by a list of options followed by a semicolon. The format
8051 of multilib_exclusions is the same, but without the preceding
8052 directory. First gcc will check the exclusions, if none of the options
8053 beginning with an exclamation point are present, and all of the other
8054 options are present, then we will ignore this completely. Passing
8055 that, gcc will consider each multilib_select in turn using the same
8056 rules for matching the options. If a match is found, that subdirectory
8060 set_multilib_dir (void)
8063 unsigned int this_path_len
;
8064 const char *this_path
, *this_arg
;
8065 const char *start
, *end
;
8067 int ok
, ndfltok
, first
;
8070 start
= multilib_defaults
;
8071 while (*start
== ' ' || *start
== '\t')
8073 while (*start
!= '\0')
8076 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8078 while (*start
== ' ' || *start
== '\t')
8086 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8087 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8089 while (*start
== ' ' || *start
== '\t')
8095 for (end
= start
+ 1;
8096 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8099 obstack_grow (&multilib_obstack
, start
, end
- start
);
8100 obstack_1grow (&multilib_obstack
, 0);
8101 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8102 mdswitches
[i
++].len
= end
- start
;
8109 p
= multilib_exclusions
;
8112 /* Ignore newlines. */
8119 /* Check the arguments. */
8126 fatal ("multilib exclusions '%s' is invalid",
8127 multilib_exclusions
);
8137 while (*p
!= ' ' && *p
!= ';')
8140 goto invalid_exclusions
;
8144 if (*this_arg
!= '!')
8152 ok
= used_arg (this_arg
, p
- this_arg
);
8167 p
= multilib_select
;
8170 /* Ignore newlines. */
8177 /* Get the initial path. */
8184 fatal ("multilib select '%s' is invalid",
8189 this_path_len
= p
- this_path
;
8191 /* Check the arguments. */
8198 goto invalid_select
;
8207 while (*p
!= ' ' && *p
!= ';')
8210 goto invalid_select
;
8214 if (*this_arg
!= '!')
8222 /* If this is a default argument, we can just ignore it.
8223 This is true even if this_arg begins with '!'. Beginning
8224 with '!' does not mean that this argument is necessarily
8225 inappropriate for this library: it merely means that
8226 there is a more specific library which uses this
8227 argument. If this argument is a default, we need not
8228 consider that more specific library. */
8229 ok
= used_arg (this_arg
, p
- this_arg
);
8236 if (default_arg (this_arg
, p
- this_arg
))
8245 if (this_path_len
!= 1
8246 || this_path
[0] != '.')
8248 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8251 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8252 new_multilib_dir
[this_path_len
] = '\0';
8253 q
= strchr (new_multilib_dir
, ':');
8256 multilib_dir
= new_multilib_dir
;
8263 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8265 while (q
< end
&& *q
!= ':')
8269 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8270 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8271 new_multilib_os_dir
[end
- q
- 1] = '\0';
8272 multilib_os_dir
= new_multilib_os_dir
;
8280 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8281 && strcmp (multilib_os_dir
, ".") == 0)
8283 free (CONST_CAST (char *, multilib_os_dir
));
8284 multilib_os_dir
= NULL
;
8286 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8287 multilib_os_dir
= multilib_dir
;
8290 /* Print out the multiple library subdirectory selection
8291 information. This prints out a series of lines. Each line looks
8292 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8293 required. Only the desired options are printed out, the negative
8294 matches. The options are print without a leading dash. There are
8295 no spaces to make it easy to use the information in the shell.
8296 Each subdirectory is printed only once. This assumes the ordering
8297 generated by the genmultilib script. Also, we leave out ones that match
8301 print_multilib_info (void)
8303 const char *p
= multilib_select
;
8304 const char *last_path
= 0, *this_path
;
8306 unsigned int last_path_len
= 0;
8311 /* Ignore newlines. */
8318 /* Get the initial path. */
8325 fatal ("multilib select '%s' is invalid", multilib_select
);
8331 /* When --disable-multilib was used but target defines
8332 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8333 to find multilib_os_dir, so skip them from output. */
8334 if (this_path
[0] == '.' && this_path
[1] == ':')
8337 /* Check for matches with the multilib_exclusions. We don't bother
8338 with the '!' in either list. If any of the exclusion rules match
8339 all of its options with the select rule, we skip it. */
8341 const char *e
= multilib_exclusions
;
8342 const char *this_arg
;
8347 /* Ignore newlines. */
8354 /* Check the arguments. */
8363 fatal ("multilib exclusion '%s' is invalid",
8364 multilib_exclusions
);
8375 while (*e
!= ' ' && *e
!= ';')
8378 goto invalid_exclusion
;
8386 int len
= e
- this_arg
;
8389 goto invalid_select
;
8393 while (*q
!= ' ' && *q
!= ';')
8396 goto invalid_select
;
8400 if (! strncmp (arg
, this_arg
,
8401 (len
< q
- arg
) ? q
- arg
: len
)
8402 || default_arg (this_arg
, e
- this_arg
))
8432 /* If this is a duplicate, skip it. */
8433 skip
= (last_path
!= 0
8434 && (unsigned int) (p
- this_path
) == last_path_len
8435 && ! strncmp (last_path
, this_path
, last_path_len
));
8437 last_path
= this_path
;
8438 last_path_len
= p
- this_path
;
8441 /* If this directory requires any default arguments, we can skip
8442 it. We will already have printed a directory identical to
8443 this one which does not require that default argument. */
8454 goto invalid_select
;
8461 while (*q
!= ' ' && *q
!= ';')
8464 goto invalid_select
;
8469 && default_arg (arg
, q
- arg
))
8484 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8495 goto invalid_select
;
8503 use_arg
= *p
!= '!';
8508 while (*p
!= ' ' && *p
!= ';')
8511 goto invalid_select
;
8523 /* If there are extra options, print them now. */
8524 if (multilib_extra
&& *multilib_extra
)
8526 int print_at
= TRUE
;
8529 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8550 /* getenv built-in spec function.
8552 Returns the value of the environment variable given by its first
8553 argument, concatenated with the second argument. If the
8554 environment variable is not defined, a fatal error is issued. */
8557 getenv_spec_function (int argc
, const char **argv
)
8567 value
= getenv (argv
[0]);
8569 fatal ("environment variable \"%s\" not defined", argv
[0]);
8571 /* We have to escape every character of the environment variable so
8572 they are not interpreted as active spec characters. A
8573 particularly painful case is when we are reading a variable
8574 holding a windows path complete with \ separators. */
8575 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8576 result
= XNEWVAR (char, len
);
8577 for (ptr
= result
; *value
; ptr
+= 2)
8583 strcpy (ptr
, argv
[1]);
8588 /* if-exists built-in spec function.
8590 Checks to see if the file specified by the absolute pathname in
8591 ARGS exists. Returns that pathname if found.
8593 The usual use for this function is to check for a library file
8594 (whose name has been expanded with %s). */
8597 if_exists_spec_function (int argc
, const char **argv
)
8599 /* Must have only one argument. */
8600 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8606 /* if-exists-else built-in spec function.
8608 This is like if-exists, but takes an additional argument which
8609 is returned if the first argument does not exist. */
8612 if_exists_else_spec_function (int argc
, const char **argv
)
8614 /* Must have exactly two arguments. */
8618 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8624 /* replace-outfile built-in spec function.
8626 This looks for the first argument in the outfiles array's name and
8627 replaces it with the second argument. */
8630 replace_outfile_spec_function (int argc
, const char **argv
)
8633 /* Must have exactly two arguments. */
8637 for (i
= 0; i
< n_infiles
; i
++)
8639 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8640 outfiles
[i
] = xstrdup (argv
[1]);
8645 /* Given two version numbers, compares the two numbers.
8646 A version number must match the regular expression
8647 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8650 compare_version_strings (const char *v1
, const char *v2
)
8655 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8656 REG_EXTENDED
| REG_NOSUB
) != 0)
8658 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8659 if (rresult
== REG_NOMATCH
)
8660 fatal ("invalid version number `%s'", v1
);
8661 else if (rresult
!= 0)
8663 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8664 if (rresult
== REG_NOMATCH
)
8665 fatal ("invalid version number `%s'", v2
);
8666 else if (rresult
!= 0)
8669 return strverscmp (v1
, v2
);
8673 /* version_compare built-in spec function.
8675 This takes an argument of the following form:
8677 <comparison-op> <arg1> [<arg2>] <switch> <result>
8679 and produces "result" if the comparison evaluates to true,
8680 and nothing if it doesn't.
8682 The supported <comparison-op> values are:
8684 >= true if switch is a later (or same) version than arg1
8686 < true if switch is an earlier version than arg1
8688 >< true if switch is arg1 or later, and earlier than arg2
8689 <> true if switch is earlier than arg1 or is arg2 or later
8691 If the switch is not present, the condition is false unless
8692 the first character of the <comparison-op> is '!'.
8695 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8696 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8699 version_compare_spec_function (int argc
, const char **argv
)
8703 const char *switch_value
= NULL
;
8708 fatal ("too few arguments to %%:version-compare");
8709 if (argv
[0][0] == '\0')
8711 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8713 if (argc
!= nargs
+ 3)
8714 fatal ("too many arguments to %%:version-compare");
8716 switch_len
= strlen (argv
[nargs
+ 1]);
8717 for (i
= 0; i
< n_switches
; i
++)
8718 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8719 && check_live_switch (i
, switch_len
))
8720 switch_value
= switches
[i
].part1
+ switch_len
;
8722 if (switch_value
== NULL
)
8726 comp1
= compare_version_strings (switch_value
, argv
[1]);
8728 comp2
= compare_version_strings (switch_value
, argv
[2]);
8730 comp2
= -1; /* This value unused. */
8733 switch (argv
[0][0] << 8 | argv
[0][1])
8735 case '>' << 8 | '=':
8736 result
= comp1
>= 0;
8738 case '!' << 8 | '<':
8739 result
= comp1
>= 0 || switch_value
== NULL
;
8744 case '!' << 8 | '>':
8745 result
= comp1
< 0 || switch_value
== NULL
;
8747 case '>' << 8 | '<':
8748 result
= comp1
>= 0 && comp2
< 0;
8750 case '<' << 8 | '>':
8751 result
= comp1
< 0 || comp2
>= 0;
8755 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8760 return argv
[nargs
+ 2];
8763 /* %:include builtin spec function. This differs from %include in that it
8764 can be nested inside a spec, and thus be conditionalized. It takes
8765 one argument, the filename, and looks for it in the startfile path.
8766 The result is always NULL, i.e. an empty expansion. */
8769 include_spec_function (int argc
, const char **argv
)
8776 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8777 read_specs (file
? file
: argv
[0], FALSE
);
8782 /* %:print-asm-header spec function. Print a banner to say that the
8783 following output is from the assembler. */
8786 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8787 const char **argv ATTRIBUTE_UNUSED
)
8789 printf (_("Assembler options\n=================\n\n"));
8790 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8795 /* Compute a timestamp to initialize flag_random_seed. */
8798 get_local_tick (void)
8802 /* Get some more or less random data. */
8803 #ifdef HAVE_GETTIMEOFDAY
8807 gettimeofday (&tv
, NULL
);
8808 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8812 time_t now
= time (NULL
);
8814 if (now
!= (time_t)-1)
8815 ret
= (unsigned) now
;
8822 /* %:compare-debug-dump-opt spec function. Save the last argument,
8823 expected to be the last -fdump-final-insns option, or generate a
8827 compare_debug_dump_opt_spec_function (int arg
,
8828 const char **argv ATTRIBUTE_UNUSED
)
8833 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8836 fatal ("too many arguments to %%:compare-debug-dump-opt");
8838 do_spec_2 ("%{fdump-final-insns=*:%*}");
8839 do_spec_1 (" ", 0, NULL
);
8841 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8846 name
= xstrdup (argv
[argbuf_index
- 1]);
8851 const char *ext
= NULL
;
8853 if (argbuf_index
> 0)
8855 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8858 else if (!compare_debug
)
8861 do_spec_2 ("%g.gkd");
8863 do_spec_1 (" ", 0, NULL
);
8865 gcc_assert (argbuf_index
> 0);
8867 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8869 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8872 which
= compare_debug
< 0;
8873 debug_check_temp_file
[which
] = name
;
8877 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8879 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8883 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8892 static const char *debug_auxbase_opt
;
8894 /* %:compare-debug-self-opt spec function. Expands to the options
8895 that are to be passed in the second compilation of
8899 compare_debug_self_opt_spec_function (int arg
,
8900 const char **argv ATTRIBUTE_UNUSED
)
8903 fatal ("too many arguments to %%:compare-debug-self-opt");
8905 if (compare_debug
>= 0)
8908 do_spec_2 ("%{c|S:%{o*:%*}}");
8909 do_spec_1 (" ", 0, NULL
);
8911 if (argbuf_index
> 0)
8912 debug_auxbase_opt
= concat ("-auxbase-strip ",
8913 argbuf
[argbuf_index
- 1],
8916 debug_auxbase_opt
= NULL
;
8919 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8920 %<fdump-final-insns=* -w -S -o %j \
8921 %{!fcompare-debug-second:-fcompare-debug-second} \
8922 ", compare_debug_opt
, NULL
);
8925 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8926 options that are to be passed in the second compilation of
8927 compare-debug. It expects, as an argument, the basename of the
8928 current input file name, with the .gk suffix appended to it. */
8931 compare_debug_auxbase_opt_spec_function (int arg
,
8938 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8941 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8943 if (compare_debug
>= 0)
8946 len
= strlen (argv
[0]);
8947 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8948 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8950 if (debug_auxbase_opt
)
8951 return debug_auxbase_opt
;
8953 #define OPT "-auxbase "
8956 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8957 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8958 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8959 name
[sizeof (OPT
) - 1 + len
] = '\0';