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%*} \
790 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
791 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
792 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
793 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
794 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
795 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
796 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
797 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
800 #ifndef LINK_LIBGCC_SPEC
801 /* Generate -L options for startfile prefix list. */
802 # define LINK_LIBGCC_SPEC "%D"
805 #ifndef STARTFILE_PREFIX_SPEC
806 # define STARTFILE_PREFIX_SPEC ""
810 # define SYSROOT_SPEC "--sysroot=%R"
813 #ifndef SYSROOT_SUFFIX_SPEC
814 # define SYSROOT_SUFFIX_SPEC ""
817 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
818 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
821 static const char *asm_debug
;
822 static const char *cpp_spec
= CPP_SPEC
;
823 static const char *cc1_spec
= CC1_SPEC
;
824 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
825 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
826 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
827 static const char *asm_spec
= ASM_SPEC
;
828 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
829 static const char *link_spec
= LINK_SPEC
;
830 static const char *lib_spec
= LIB_SPEC
;
831 static const char *mfwrap_spec
= MFWRAP_SPEC
;
832 static const char *mflib_spec
= MFLIB_SPEC
;
833 static const char *link_gomp_spec
= "";
834 static const char *libgcc_spec
= LIBGCC_SPEC
;
835 static const char *endfile_spec
= ENDFILE_SPEC
;
836 static const char *startfile_spec
= STARTFILE_SPEC
;
837 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
838 static const char *linker_name_spec
= LINKER_NAME
;
839 static const char *linker_plugin_file_spec
= "";
840 static const char *lto_wrapper_spec
= "";
841 static const char *lto_gcc_spec
= "";
842 static const char *lto_libgcc_spec
= "";
843 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
844 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
845 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
846 static const char *sysroot_spec
= SYSROOT_SPEC
;
847 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
848 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
850 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
851 There should be no need to override these in target dependent files,
852 but we need to copy them to the specs file so that newer versions
853 of the GCC driver can correctly drive older tool chains with the
854 appropriate -B options. */
856 /* When cpplib handles traditional preprocessing, get rid of this, and
857 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
858 that we default the front end language better. */
859 static const char *trad_capable_cpp
=
860 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
862 /* We don't wrap .d files in %W{} since a missing .d file, and
863 therefore no dependency entry, confuses make into thinking a .o
864 file that happens to exist is up-to-date. */
865 static const char *cpp_unique_options
=
866 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
867 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
868 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
869 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
870 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
871 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
872 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
873 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
874 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
875 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
878 /* This contains cpp options which are common with cc1_options and are passed
879 only when preprocessing only to avoid duplication. We pass the cc1 spec
880 options to the preprocessor so that it the cc1 spec may manipulate
881 options used to set target flags. Those special target flags settings may
882 in turn cause preprocessor symbols to be defined specially. */
883 static const char *cpp_options
=
884 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
885 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
886 %{undef} %{save-temps*:-fpch-preprocess}";
888 /* This contains cpp options which are not passed when the preprocessor
889 output will be used by another program. */
890 static const char *cpp_debug_options
= "%{d*}";
892 /* NB: This is shared amongst all front-ends, except for Ada. */
893 static const char *cc1_options
=
894 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
895 %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{a*}\
896 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
897 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
898 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
899 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
900 %{Qn:-fno-ident} %{--help:--help}\
901 %{--target-help:--target-help}\
902 %{--help=*:--help=%(VALUE)}\
903 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
904 %{fsyntax-only:-o %j} %{-param*}\
905 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
906 %{coverage:-fprofile-arcs -ftest-coverage}";
908 static const char *asm_options
=
909 "%{--target-help:%:print-asm-header()} "
911 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
912 to the assembler equivalents. */
913 "%{v} %{w:-W} %{I*} "
915 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
917 static const char *invoke_as
=
918 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
920 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
921 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
925 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
926 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
930 /* Some compilers have limits on line lengths, and the multilib_select
931 and/or multilib_matches strings can be very long, so we build them at
933 static struct obstack multilib_obstack
;
934 static const char *multilib_select
;
935 static const char *multilib_matches
;
936 static const char *multilib_defaults
;
937 static const char *multilib_exclusions
;
939 /* Check whether a particular argument is a default argument. */
941 #ifndef MULTILIB_DEFAULTS
942 #define MULTILIB_DEFAULTS { "" }
945 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
947 #ifndef DRIVER_SELF_SPECS
948 #define DRIVER_SELF_SPECS ""
951 /* Adding -fopenmp should imply pthreads. This is particularly important
952 for targets that use different start files and suchlike. */
953 #ifndef GOMP_SELF_SPECS
954 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
957 static const char *const driver_self_specs
[] = {
958 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
959 DRIVER_SELF_SPECS
, CONFIGURE_SPECS
, GOMP_SELF_SPECS
962 #ifndef OPTION_DEFAULT_SPECS
963 #define OPTION_DEFAULT_SPECS { "", "" }
972 static const struct default_spec
973 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
977 struct user_specs
*next
;
978 const char *filename
;
981 static struct user_specs
*user_specs_head
, *user_specs_tail
;
983 #ifndef SWITCH_TAKES_ARG
984 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
987 #ifndef WORD_SWITCH_TAKES_ARG
988 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
991 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
992 /* This defines which switches stop a full compilation. */
993 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
994 ((CHAR) == 'c' || (CHAR) == 'S' || (CHAR) == 'E')
996 #ifndef SWITCH_CURTAILS_COMPILATION
997 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
998 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
1002 /* Record the mapping from file suffixes for compilation specs. */
1006 const char *suffix
; /* Use this compiler for input files
1007 whose names end in this suffix. */
1009 const char *spec
; /* To use this compiler, run this spec. */
1011 const char *cpp_spec
; /* If non-NULL, substitute this spec
1012 for `%C', rather than the usual
1014 const int combinable
; /* If nonzero, compiler can deal with
1015 multiple source files at once (IMA). */
1016 const int needs_preprocessing
; /* If nonzero, source files need to
1017 be run through a preprocessor. */
1020 /* Pointer to a vector of `struct compiler' that gives the spec for
1021 compiling a file, based on its suffix.
1022 A file that does not end in any of these suffixes will be passed
1023 unchanged to the loader and nothing else will be done to it.
1025 An entry containing two 0s is used to terminate the vector.
1027 If multiple entries match a file, the last matching one is used. */
1029 static struct compiler
*compilers
;
1031 /* Number of entries in `compilers', not counting the null terminator. */
1033 static int n_compilers
;
1035 /* The default list of file name suffixes and their compilation specs. */
1037 static const struct compiler default_compilers
[] =
1039 /* Add lists of suffixes of known languages here. If those languages
1040 were not present when we built the driver, we will hit these copies
1041 and be given a more meaningful error than "file not used since
1042 linking is not done". */
1043 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1044 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1045 {".mii", "#Objective-C++", 0, 0, 0},
1046 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1047 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1048 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1049 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1050 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1051 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1052 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1053 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1054 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1055 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1056 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1057 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1058 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1059 {".r", "#Ratfor", 0, 0, 0},
1060 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1061 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1062 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1063 /* Next come the entries for C. */
1064 {".c", "@c", 0, 1, 1},
1066 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1067 external preprocessor if -save-temps is given. */
1068 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1070 %{traditional|ftraditional:\
1071 %eGNU C no longer supports -traditional without -E}\
1073 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1074 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1075 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1077 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1078 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1079 %{!fsyntax-only:%(invoke_as)}} \
1081 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1082 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1083 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1084 cc1 %(cpp_unique_options) %(cc1_options)}}\
1085 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1087 "%{!E:%e-E or -x required when input is from standard input}\
1088 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1089 {".h", "@c-header", 0, 0, 0},
1091 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1092 external preprocessor if -save-temps is given. */
1093 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1095 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1096 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1097 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1099 -o %g.s %{!o*:--output-pch=%i.gch}\
1100 %W{o*:--output-pch=%*}%V}\
1101 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1102 cc1 %(cpp_unique_options) %(cc1_options)\
1103 -o %g.s %{!o*:--output-pch=%i.gch}\
1104 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1105 {".i", "@cpp-output", 0, 1, 0},
1107 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1108 {".s", "@assembler", 0, 1, 0},
1110 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1111 {".sx", "@assembler-with-cpp", 0, 1, 0},
1112 {".S", "@assembler-with-cpp", 0, 1, 0},
1113 {"@assembler-with-cpp",
1114 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1115 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1116 %{E|M|MM:%(cpp_debug_options)}\
1117 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1118 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1120 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1121 %{E|M|MM:%(cpp_debug_options)}\
1122 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1123 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1128 /* Mark end of table. */
1132 /* Number of elements in default_compilers, not counting the terminator. */
1134 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1136 /* A vector of options to give to the linker.
1137 These options are accumulated by %x,
1138 and substituted into the linker command with %X. */
1139 static int n_linker_options
;
1140 static char **linker_options
;
1142 /* A vector of options to give to the assembler.
1143 These options are accumulated by -Wa,
1144 and substituted into the assembler command with %Y. */
1145 static int n_assembler_options
;
1146 static char **assembler_options
;
1148 /* A vector of options to give to the preprocessor.
1149 These options are accumulated by -Wp,
1150 and substituted into the preprocessor command with %Z. */
1151 static int n_preprocessor_options
;
1152 static char **preprocessor_options
;
1154 /* Define how to map long options into short ones. */
1156 /* This structure describes one mapping. */
1159 /* The long option's name. */
1160 const char *const name
;
1161 /* The equivalent short option. */
1162 const char *const equivalent
;
1163 /* Argument info. A string of flag chars; NULL equals no options.
1164 a => argument required.
1165 o => argument optional.
1166 j => join argument to equivalent, making one word.
1167 * => require other text after NAME as an argument. */
1168 const char *const arg_info
;
1171 /* This is the table of mappings. Mappings are tried sequentially
1172 for each option encountered; the first one that matches, wins. */
1174 static const struct option_map option_map
[] =
1176 {"--all-warnings", "-Wall", 0},
1177 {"--ansi", "-ansi", 0},
1178 {"--assemble", "-S", 0},
1179 {"--assert", "-A", "a"},
1180 {"--classpath", "-fclasspath=", "aj"},
1181 {"--bootclasspath", "-fbootclasspath=", "aj"},
1182 {"--CLASSPATH", "-fclasspath=", "aj"},
1183 {"--combine", "-combine", 0},
1184 {"--comments", "-C", 0},
1185 {"--comments-in-macros", "-CC", 0},
1186 {"--compile", "-c", 0},
1187 {"--debug", "-g", "oj"},
1188 {"--define-macro", "-D", "aj"},
1189 {"--dependencies", "-M", 0},
1190 {"--dump", "-d", "a"},
1191 {"--dumpbase", "-dumpbase", "a"},
1192 {"--dumpdir", "-dumpdir", "a"},
1193 {"--encoding", "-fencoding=", "aj"},
1194 {"--entry", "-e", 0},
1195 {"--extra-warnings", "-W", 0},
1196 {"--extdirs", "-fextdirs=", "aj"},
1197 {"--for-assembler", "-Wa", "a"},
1198 {"--for-linker", "-Xlinker", "a"},
1199 {"--force-link", "-u", "a"},
1200 {"--coverage", "-coverage", 0},
1201 {"--imacros", "-imacros", "a"},
1202 {"--include", "-include", "a"},
1203 {"--include-barrier", "-I-", 0},
1204 {"--include-directory", "-I", "aj"},
1205 {"--include-directory-after", "-idirafter", "a"},
1206 {"--include-prefix", "-iprefix", "a"},
1207 {"--include-with-prefix", "-iwithprefix", "a"},
1208 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1209 {"--include-with-prefix-after", "-iwithprefix", "a"},
1210 {"--language", "-x", "a"},
1211 {"--library-directory", "-L", "a"},
1212 {"--machine", "-m", "aj"},
1213 {"--machine-", "-m", "*j"},
1214 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1215 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1216 {"--no-line-commands", "-P", 0},
1217 {"--no-precompiled-includes", "-noprecomp", 0},
1218 {"--no-standard-includes", "-nostdinc", 0},
1219 {"--no-standard-libraries", "-nostdlib", 0},
1220 {"--no-warnings", "-w", 0},
1221 {"--optimize", "-O", "oj"},
1222 {"--output", "-o", "a"},
1223 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1224 {"--param", "--param", "a"},
1225 {"--pass-exit-codes", "-pass-exit-codes", 0},
1226 {"--pedantic", "-pedantic", 0},
1227 {"--pedantic-errors", "-pedantic-errors", 0},
1228 {"--pie", "-pie", 0},
1229 {"--pipe", "-pipe", 0},
1230 {"--prefix", "-B", "a"},
1231 {"--preprocess", "-E", 0},
1232 {"--print-search-dirs", "-print-search-dirs", 0},
1233 {"--print-file-name", "-print-file-name=", "aj"},
1234 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1235 {"--print-missing-file-dependencies", "-MG", 0},
1236 {"--print-multi-lib", "-print-multi-lib", 0},
1237 {"--print-multi-directory", "-print-multi-directory", 0},
1238 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1239 {"--print-prog-name", "-print-prog-name=", "aj"},
1240 {"--print-sysroot", "-print-sysroot", 0},
1241 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1242 {"--profile", "-p", 0},
1243 {"--profile-blocks", "-a", 0},
1244 {"--quiet", "-q", 0},
1245 {"--resource", "-fcompile-resource=", "aj"},
1246 {"--save-temps", "-save-temps", 0},
1247 {"--shared", "-shared", 0},
1248 {"--silent", "-q", 0},
1249 {"--specs", "-specs=", "aj"},
1250 {"--static", "-static", 0},
1251 {"--std", "-std=", "aj"},
1252 {"--symbolic", "-symbolic", 0},
1253 {"--sysroot", "--sysroot=", "aj"},
1254 {"--time", "-time", 0},
1255 {"--trace-includes", "-H", 0},
1256 {"--traditional", "-traditional", 0},
1257 {"--traditional-cpp", "-traditional-cpp", 0},
1258 {"--trigraphs", "-trigraphs", 0},
1259 {"--undefine-macro", "-U", "aj"},
1260 {"--user-dependencies", "-MM", 0},
1261 {"--verbose", "-v", 0},
1262 {"--warn-", "-W", "*j"},
1263 {"--write-dependencies", "-MD", 0},
1264 {"--write-user-dependencies", "-MMD", 0},
1269 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1270 static const struct {
1271 const char *const option_found
;
1272 const char *const replacements
;
1273 } target_option_translations
[] =
1275 TARGET_OPTION_TRANSLATE_TABLE
,
1280 /* Translate the options described by *ARGCP and *ARGVP.
1281 Make a new vector and store it back in *ARGVP,
1282 and store its length in *ARGCP. */
1285 translate_options (int *argcp
, const char *const **argvp
)
1289 const char *const *argv
= *argvp
;
1290 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1291 const char **newv
= XNEWVAR (const char *, newvsize
);
1295 newv
[newindex
++] = argv
[i
++];
1299 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1303 target_option_translations
[tott_idx
].option_found
;
1306 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1313 for (sp
= target_option_translations
[tott_idx
].replacements
;
1320 newvsize
+= spaces
* sizeof (const char *);
1321 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1323 sp
= target_option_translations
[tott_idx
].replacements
;
1332 newv
[newindex
++] = np
;
1333 while (*np
!= ' ' && *np
)
1344 if (target_option_translations
[tott_idx
].option_found
)
1348 /* Translate -- options. */
1349 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1352 /* Find a mapping that applies to this option. */
1353 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1355 size_t optlen
= strlen (option_map
[j
].name
);
1356 size_t arglen
= strlen (argv
[i
]);
1357 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1358 const char *arginfo
= option_map
[j
].arg_info
;
1363 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1365 const char *arg
= 0;
1367 if (arglen
< optlen
)
1370 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1371 if (strlen (option_map
[k
].name
) >= arglen
1372 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1374 error ("ambiguous abbreviation %s", argv
[i
]);
1378 if (k
!= ARRAY_SIZE (option_map
))
1382 if (arglen
> optlen
)
1384 /* If the option has an argument, accept that. */
1385 if (argv
[i
][optlen
] == '=')
1386 arg
= argv
[i
] + optlen
+ 1;
1388 /* If this mapping requires extra text at end of name,
1389 accept that as "argument". */
1390 else if (strchr (arginfo
, '*') != 0)
1391 arg
= argv
[i
] + optlen
;
1393 /* Otherwise, extra text at end means mismatch.
1394 Try other mappings. */
1399 else if (strchr (arginfo
, '*') != 0)
1401 error ("incomplete '%s' option", option_map
[j
].name
);
1405 /* Handle arguments. */
1406 if (strchr (arginfo
, 'a') != 0)
1412 error ("missing argument to '%s' option",
1413 option_map
[j
].name
);
1420 else if (strchr (arginfo
, '*') != 0)
1422 else if (strchr (arginfo
, 'o') == 0)
1425 error ("extraneous argument to '%s' option",
1426 option_map
[j
].name
);
1430 /* Store the translation as one argv elt or as two. */
1431 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1432 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1436 newv
[newindex
++] = option_map
[j
].equivalent
;
1437 newv
[newindex
++] = arg
;
1440 newv
[newindex
++] = option_map
[j
].equivalent
;
1448 /* Handle old-fashioned options--just copy them through,
1449 with their arguments. */
1450 else if (argv
[i
][0] == '-')
1452 const char *p
= argv
[i
] + 1;
1456 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1457 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1458 else if (WORD_SWITCH_TAKES_ARG (p
))
1459 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1460 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1463 else if (! strcmp (p
, "Xlinker"))
1465 else if (! strcmp (p
, "Xpreprocessor"))
1467 else if (! strcmp (p
, "Xassembler"))
1470 /* Watch out for an option at the end of the command line that
1471 is missing arguments, and avoid skipping past the end of the
1473 if (nskip
+ i
> argc
)
1478 newv
[newindex
++] = argv
[i
++];
1483 /* Ordinary operands, or +e options. */
1484 newv
[newindex
++] = argv
[i
++];
1494 skip_whitespace (char *p
)
1498 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1499 be considered whitespace. */
1500 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1502 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1516 /* Structures to keep track of prefixes to try when looking for files. */
1520 const char *prefix
; /* String to prepend to the path. */
1521 struct prefix_list
*next
; /* Next in linked list. */
1522 int require_machine_suffix
; /* Don't use without machine_suffix. */
1523 /* 2 means try both machine_suffix and just_machine_suffix. */
1524 int priority
; /* Sort key - priority within list. */
1525 int os_multilib
; /* 1 if OS multilib scheme should be used,
1526 0 for GCC multilib scheme. */
1531 struct prefix_list
*plist
; /* List of prefixes to try */
1532 int max_len
; /* Max length of a prefix in PLIST */
1533 const char *name
; /* Name of this list (used in config stuff) */
1536 /* List of prefixes to try when looking for executables. */
1538 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1540 /* List of prefixes to try when looking for startup (crt0) files. */
1542 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1544 /* List of prefixes to try when looking for include files. */
1546 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1548 /* Suffix to attach to directories searched for commands.
1549 This looks like `MACHINE/VERSION/'. */
1551 static const char *machine_suffix
= 0;
1553 /* Suffix to attach to directories searched for commands.
1554 This is just `MACHINE/'. */
1556 static const char *just_machine_suffix
= 0;
1558 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1560 static const char *gcc_exec_prefix
;
1562 /* Adjusted value of standard_libexec_prefix. */
1564 static const char *gcc_libexec_prefix
;
1566 /* Default prefixes to attach to command names. */
1568 #ifndef STANDARD_STARTFILE_PREFIX_1
1569 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1571 #ifndef STANDARD_STARTFILE_PREFIX_2
1572 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1575 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1576 #undef MD_EXEC_PREFIX
1577 #undef MD_STARTFILE_PREFIX
1578 #undef MD_STARTFILE_PREFIX_1
1581 /* If no prefixes defined, use the null string, which will disable them. */
1582 #ifndef MD_EXEC_PREFIX
1583 #define MD_EXEC_PREFIX ""
1585 #ifndef MD_STARTFILE_PREFIX
1586 #define MD_STARTFILE_PREFIX ""
1588 #ifndef MD_STARTFILE_PREFIX_1
1589 #define MD_STARTFILE_PREFIX_1 ""
1592 /* These directories are locations set at configure-time based on the
1593 --prefix option provided to configure. Their initializers are
1594 defined in Makefile.in. These paths are not *directly* used when
1595 gcc_exec_prefix is set because, in that case, we know where the
1596 compiler has been installed, and use paths relative to that
1597 location instead. */
1598 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1599 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1600 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1601 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1603 /* For native compilers, these are well-known paths containing
1604 components that may be provided by the system. For cross
1605 compilers, these paths are not used. */
1606 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1607 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1608 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1609 static const char *const standard_startfile_prefix_1
1610 = STANDARD_STARTFILE_PREFIX_1
;
1611 static const char *const standard_startfile_prefix_2
1612 = STANDARD_STARTFILE_PREFIX_2
;
1614 /* A relative path to be used in finding the location of tools
1615 relative to the driver. */
1616 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1618 /* Subdirectory to use for locating libraries. Set by
1619 set_multilib_dir based on the compilation options. */
1621 static const char *multilib_dir
;
1623 /* Subdirectory to use for locating libraries in OS conventions. Set by
1624 set_multilib_dir based on the compilation options. */
1626 static const char *multilib_os_dir
;
1628 /* Structure to keep track of the specs that have been defined so far.
1629 These are accessed using %(specname) or %[specname] in a compiler
1634 /* The following 2 fields must be first */
1635 /* to allow EXTRA_SPECS to be initialized */
1636 const char *name
; /* name of the spec. */
1637 const char *ptr
; /* available ptr if no static pointer */
1639 /* The following fields are not initialized */
1640 /* by EXTRA_SPECS */
1641 const char **ptr_spec
; /* pointer to the spec itself. */
1642 struct spec_list
*next
; /* Next spec in linked list. */
1643 int name_len
; /* length of the name */
1644 int alloc_p
; /* whether string was allocated */
1647 #define INIT_STATIC_SPEC(NAME,PTR) \
1648 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1650 /* List of statically defined specs. */
1651 static struct spec_list static_specs
[] =
1653 INIT_STATIC_SPEC ("asm", &asm_spec
),
1654 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1655 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1656 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1657 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1658 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1659 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1660 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1661 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1662 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1663 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1664 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1665 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1666 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1667 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1668 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1669 INIT_STATIC_SPEC ("link", &link_spec
),
1670 INIT_STATIC_SPEC ("lib", &lib_spec
),
1671 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1672 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1673 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1674 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1675 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1676 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1677 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1678 INIT_STATIC_SPEC ("version", &compiler_version
),
1679 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1680 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1681 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1682 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1683 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1684 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1685 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1686 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1687 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1688 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1689 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1690 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1691 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1692 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1693 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1694 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1695 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1696 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1697 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1700 #ifdef EXTRA_SPECS /* additional specs needed */
1701 /* Structure to keep track of just the first two args of a spec_list.
1702 That is all that the EXTRA_SPECS macro gives us. */
1705 const char *const name
;
1706 const char *const ptr
;
1709 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1710 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1713 /* List of dynamically allocates specs that have been defined so far. */
1715 static struct spec_list
*specs
= (struct spec_list
*) 0;
1717 /* List of static spec functions. */
1719 static const struct spec_function static_spec_functions
[] =
1721 { "getenv", getenv_spec_function
},
1722 { "if-exists", if_exists_spec_function
},
1723 { "if-exists-else", if_exists_else_spec_function
},
1724 { "replace-outfile", replace_outfile_spec_function
},
1725 { "version-compare", version_compare_spec_function
},
1726 { "include", include_spec_function
},
1727 { "print-asm-header", print_asm_header_spec_function
},
1728 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1729 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1730 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1731 #ifdef EXTRA_SPEC_FUNCTIONS
1732 EXTRA_SPEC_FUNCTIONS
1737 static int processing_spec_function
;
1739 /* Add appropriate libgcc specs to OBSTACK, taking into account
1740 various permutations of -shared-libgcc, -shared, and such. */
1742 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1744 #ifndef USE_LD_AS_NEEDED
1745 #define USE_LD_AS_NEEDED 0
1749 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1750 const char *static_name
, const char *eh_name
)
1754 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1755 "%{!static:%{!static-libgcc:"
1756 #if USE_LD_AS_NEEDED
1757 "%{!shared-libgcc:",
1758 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1761 shared_name
, "%{!shared: ", static_name
, "}"
1765 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1766 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1770 "%{shared-libgcc:", shared_name
, "}"
1771 "%{!shared-libgcc:", static_name
, "}"
1774 "%{shared:", shared_name
, "}"
1779 obstack_grow (obstack
, buf
, strlen (buf
));
1782 #endif /* ENABLE_SHARED_LIBGCC */
1784 /* Initialize the specs lookup routines. */
1789 struct spec_list
*next
= (struct spec_list
*) 0;
1790 struct spec_list
*sl
= (struct spec_list
*) 0;
1794 return; /* Already initialized. */
1797 notice ("Using built-in specs.\n");
1800 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1802 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1804 sl
= &extra_specs
[i
];
1805 sl
->name
= extra_specs_1
[i
].name
;
1806 sl
->ptr
= extra_specs_1
[i
].ptr
;
1808 sl
->name_len
= strlen (sl
->name
);
1809 sl
->ptr_spec
= &sl
->ptr
;
1814 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1816 sl
= &static_specs
[i
];
1821 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1822 /* ??? If neither -shared-libgcc nor --static-libgcc was
1823 seen, then we should be making an educated guess. Some proposed
1824 heuristics for ELF include:
1826 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1827 program will be doing dynamic loading, which will likely
1828 need the shared libgcc.
1830 (2) If "-ldl", then it's also a fair bet that we're doing
1833 (3) For each ET_DYN we're linking against (either through -lfoo
1834 or /some/path/foo.so), check to see whether it or one of
1835 its dependencies depends on a shared libgcc.
1839 If the runtime is fixed to look for program headers instead
1840 of calling __register_frame_info at all, for each object,
1841 use the shared libgcc if any EH symbol referenced.
1843 If crtstuff is fixed to not invoke __register_frame_info
1844 automatically, for each object, use the shared libgcc if
1845 any non-empty unwind section found.
1847 Doing any of this probably requires invoking an external program to
1848 do the actual object file scanning. */
1850 const char *p
= libgcc_spec
;
1853 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1854 when given the proper command line arguments. */
1857 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1859 init_gcc_specs (&obstack
,
1861 #ifdef USE_LIBUNWIND_EXCEPTIONS
1867 #ifdef USE_LIBUNWIND_EXCEPTIONS
1868 # ifdef HAVE_LD_STATIC_DYNAMIC
1869 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1879 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1881 /* Ug. We don't know shared library extensions. Hope that
1882 systems that use this form don't do shared libraries. */
1883 init_gcc_specs (&obstack
,
1887 #ifdef USE_LIBUNWIND_EXCEPTIONS
1896 obstack_1grow (&obstack
, *p
);
1897 in_sep
= (*p
== ' ');
1902 obstack_1grow (&obstack
, '\0');
1903 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1906 #ifdef USE_AS_TRADITIONAL_FORMAT
1907 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1909 static const char tf
[] = "--traditional-format ";
1910 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1911 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1912 asm_spec
= XOBFINISH (&obstack
, const char *);
1916 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1917 # ifdef LINK_BUILDID_SPEC
1918 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1919 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1921 # ifdef LINK_EH_SPEC
1922 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1923 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1925 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1926 link_spec
= XOBFINISH (&obstack
, const char *);
1932 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1933 removed; If the spec starts with a + then SPEC is added to the end of the
1937 set_spec (const char *name
, const char *spec
)
1939 struct spec_list
*sl
;
1940 const char *old_spec
;
1941 int name_len
= strlen (name
);
1944 /* If this is the first call, initialize the statically allocated specs. */
1947 struct spec_list
*next
= (struct spec_list
*) 0;
1948 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1950 sl
= &static_specs
[i
];
1957 /* See if the spec already exists. */
1958 for (sl
= specs
; sl
; sl
= sl
->next
)
1959 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1964 /* Not found - make it. */
1965 sl
= XNEW (struct spec_list
);
1966 sl
->name
= xstrdup (name
);
1967 sl
->name_len
= name_len
;
1968 sl
->ptr_spec
= &sl
->ptr
;
1970 *(sl
->ptr_spec
) = "";
1975 old_spec
= *(sl
->ptr_spec
);
1976 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1977 ? concat (old_spec
, spec
+ 1, NULL
)
1982 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1985 /* Free the old spec. */
1986 if (old_spec
&& sl
->alloc_p
)
1987 free (CONST_CAST(char *, old_spec
));
1992 /* Accumulate a command (program name and args), and run it. */
1994 /* Vector of pointers to arguments in the current line of specifications. */
1996 static const char **argbuf
;
1998 /* Number of elements allocated in argbuf. */
2000 static int argbuf_length
;
2002 /* Number of elements in argbuf currently in use (containing args). */
2004 static int argbuf_index
;
2006 /* Position in the argbuf array containing the name of the output file
2007 (the value associated with the "-o" flag). */
2009 static int have_o_argbuf_index
= 0;
2011 /* Were the options -c, -S or -E passed. */
2012 static int have_c
= 0;
2014 /* Was the option -o passed. */
2015 static int have_o
= 0;
2017 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2018 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2021 static struct temp_name
{
2022 const char *suffix
; /* suffix associated with the code. */
2023 int length
; /* strlen (suffix). */
2024 int unique
; /* Indicates whether %g or %u/%U was used. */
2025 const char *filename
; /* associated filename. */
2026 int filename_length
; /* strlen (filename). */
2027 struct temp_name
*next
;
2030 /* Number of commands executed so far. */
2032 static int execution_count
;
2034 /* Number of commands that exited with a signal. */
2036 static int signal_count
;
2038 /* Name with which this program was invoked. */
2040 static const char *programname
;
2042 /* Allocate the argument vector. */
2048 argbuf
= XNEWVEC (const char *, argbuf_length
);
2051 /* Clear out the vector of arguments (after a command is executed). */
2059 /* Add one argument to the vector at the end.
2060 This is done when a space is seen or at the end of the line.
2061 If DELETE_ALWAYS is nonzero, the arg is a filename
2062 and the file should be deleted eventually.
2063 If DELETE_FAILURE is nonzero, the arg is a filename
2064 and the file should be deleted if this compilation fails. */
2067 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2069 if (argbuf_index
+ 1 == argbuf_length
)
2070 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2072 argbuf
[argbuf_index
++] = arg
;
2073 argbuf
[argbuf_index
] = 0;
2075 if (strcmp (arg
, "-o") == 0)
2076 have_o_argbuf_index
= argbuf_index
;
2077 if (delete_always
|| delete_failure
)
2078 record_temp_file (arg
, delete_always
, delete_failure
);
2081 /* Load specs from a file name named FILENAME, replacing occurrences of
2082 various different types of line-endings, \r\n, \n\r and just \r, with
2086 load_specs (const char *filename
)
2090 struct stat statbuf
;
2097 notice ("Reading specs from %s\n", filename
);
2099 /* Open and stat the file. */
2100 desc
= open (filename
, O_RDONLY
, 0);
2102 pfatal_with_name (filename
);
2103 if (stat (filename
, &statbuf
) < 0)
2104 pfatal_with_name (filename
);
2106 /* Read contents of file into BUFFER. */
2107 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2108 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2110 pfatal_with_name (filename
);
2111 buffer
[readlen
] = 0;
2114 specs
= XNEWVEC (char, readlen
+ 1);
2116 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2122 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2124 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2138 /* Read compilation specs from a file named FILENAME,
2139 replacing the default ones.
2141 A suffix which starts with `*' is a definition for
2142 one of the machine-specific sub-specs. The "suffix" should be
2143 *asm, *cc1, *cpp, *link, *startfile, etc.
2144 The corresponding spec is stored in asm_spec, etc.,
2145 rather than in the `compilers' vector.
2147 Anything invalid in the file is a fatal error. */
2150 read_specs (const char *filename
, int main_p
)
2155 buffer
= load_specs (filename
);
2157 /* Scan BUFFER for specs, putting them in the vector. */
2163 char *in
, *out
, *p1
, *p2
, *p3
;
2165 /* Advance P in BUFFER to the next nonblank nocomment line. */
2166 p
= skip_whitespace (p
);
2170 /* Is this a special command that starts with '%'? */
2171 /* Don't allow this for the main specs file, since it would
2172 encourage people to overwrite it. */
2173 if (*p
== '%' && !main_p
)
2176 while (*p
&& *p
!= '\n')
2182 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2183 && (p1
[sizeof "%include" - 1] == ' '
2184 || p1
[sizeof "%include" - 1] == '\t'))
2188 p1
+= sizeof ("%include");
2189 while (*p1
== ' ' || *p1
== '\t')
2192 if (*p1
++ != '<' || p
[-2] != '>')
2193 fatal ("specs %%include syntax malformed after %ld characters",
2194 (long) (p1
- buffer
+ 1));
2197 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2198 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2201 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2202 && (p1
[sizeof "%include_noerr" - 1] == ' '
2203 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2207 p1
+= sizeof "%include_noerr";
2208 while (*p1
== ' ' || *p1
== '\t')
2211 if (*p1
++ != '<' || p
[-2] != '>')
2212 fatal ("specs %%include syntax malformed after %ld characters",
2213 (long) (p1
- buffer
+ 1));
2216 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2218 read_specs (new_filename
, FALSE
);
2219 else if (verbose_flag
)
2220 notice ("could not find specs file %s\n", p1
);
2223 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2224 && (p1
[sizeof "%rename" - 1] == ' '
2225 || p1
[sizeof "%rename" - 1] == '\t'))
2228 struct spec_list
*sl
;
2229 struct spec_list
*newsl
;
2231 /* Get original name. */
2232 p1
+= sizeof "%rename";
2233 while (*p1
== ' ' || *p1
== '\t')
2236 if (! ISALPHA ((unsigned char) *p1
))
2237 fatal ("specs %%rename syntax malformed after %ld characters",
2238 (long) (p1
- buffer
));
2241 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2244 if (*p2
!= ' ' && *p2
!= '\t')
2245 fatal ("specs %%rename syntax malformed after %ld characters",
2246 (long) (p2
- buffer
));
2250 while (*p2
== ' ' || *p2
== '\t')
2253 if (! ISALPHA ((unsigned char) *p2
))
2254 fatal ("specs %%rename syntax malformed after %ld characters",
2255 (long) (p2
- buffer
));
2257 /* Get new spec name. */
2259 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2263 fatal ("specs %%rename syntax malformed after %ld characters",
2264 (long) (p3
- buffer
));
2267 for (sl
= specs
; sl
; sl
= sl
->next
)
2268 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2272 fatal ("specs %s spec was not found to be renamed", p1
);
2274 if (strcmp (p1
, p2
) == 0)
2277 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2278 if (strcmp (newsl
->name
, p2
) == 0)
2279 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2284 notice ("rename spec %s to %s\n", p1
, p2
);
2286 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2290 set_spec (p2
, *(sl
->ptr_spec
));
2292 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2294 *(sl
->ptr_spec
) = "";
2299 fatal ("specs unknown %% command after %ld characters",
2300 (long) (p1
- buffer
));
2303 /* Find the colon that should end the suffix. */
2305 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2308 /* The colon shouldn't be missing. */
2310 fatal ("specs file malformed after %ld characters",
2311 (long) (p1
- buffer
));
2313 /* Skip back over trailing whitespace. */
2315 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2318 /* Copy the suffix to a string. */
2319 suffix
= save_string (p
, p2
- p
);
2320 /* Find the next line. */
2321 p
= skip_whitespace (p1
+ 1);
2323 fatal ("specs file malformed after %ld characters",
2324 (long) (p
- buffer
));
2327 /* Find next blank line or end of string. */
2328 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2331 /* Specs end at the blank line and do not include the newline. */
2332 spec
= save_string (p
, p1
- p
);
2335 /* Delete backslash-newline sequences from the spec. */
2340 if (in
[0] == '\\' && in
[1] == '\n')
2342 else if (in
[0] == '#')
2343 while (*in
&& *in
!= '\n')
2351 if (suffix
[0] == '*')
2353 if (! strcmp (suffix
, "*link_command"))
2354 link_command_spec
= spec
;
2356 set_spec (suffix
+ 1, spec
);
2360 /* Add this pair to the vector. */
2362 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2364 compilers
[n_compilers
].suffix
= suffix
;
2365 compilers
[n_compilers
].spec
= spec
;
2367 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2371 link_command_spec
= spec
;
2374 if (link_command_spec
== 0)
2375 fatal ("spec file has no spec for linking");
2378 /* Record the names of temporary files we tell compilers to write,
2379 and delete them at the end of the run. */
2381 /* This is the common prefix we use to make temp file names.
2382 It is chosen once for each run of this program.
2383 It is substituted into a spec by %g or %j.
2384 Thus, all temp file names contain this prefix.
2385 In practice, all temp file names start with this prefix.
2387 This prefix comes from the envvar TMPDIR if it is defined;
2388 otherwise, from the P_tmpdir macro if that is defined;
2389 otherwise, in /usr/tmp or /tmp;
2390 or finally the current directory if all else fails. */
2392 static const char *temp_filename
;
2394 /* Length of the prefix. */
2396 static int temp_filename_length
;
2398 /* Define the list of temporary files to delete. */
2403 struct temp_file
*next
;
2406 /* Queue of files to delete on success or failure of compilation. */
2407 static struct temp_file
*always_delete_queue
;
2408 /* Queue of files to delete on failure of compilation. */
2409 static struct temp_file
*failure_delete_queue
;
2411 /* Record FILENAME as a file to be deleted automatically.
2412 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2413 otherwise delete it in any case.
2414 FAIL_DELETE nonzero means delete it if a compilation step fails;
2415 otherwise delete it in any case. */
2418 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2420 char *const name
= xstrdup (filename
);
2424 struct temp_file
*temp
;
2425 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2426 if (! strcmp (name
, temp
->name
))
2429 temp
= XNEW (struct temp_file
);
2430 temp
->next
= always_delete_queue
;
2432 always_delete_queue
= temp
;
2439 struct temp_file
*temp
;
2440 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2441 if (! strcmp (name
, temp
->name
))
2444 temp
= XNEW (struct temp_file
);
2445 temp
->next
= failure_delete_queue
;
2447 failure_delete_queue
= temp
;
2453 /* Delete all the temporary files whose names we previously recorded. */
2455 #ifndef DELETE_IF_ORDINARY
2456 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2459 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2460 if (unlink (NAME) < 0) \
2462 perror_with_name (NAME); \
2467 delete_if_ordinary (const char *name
)
2473 printf ("Delete %s? (y or n) ", name
);
2477 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2480 if (i
== 'y' || i
== 'Y')
2482 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2486 delete_temp_files (void)
2488 struct temp_file
*temp
;
2490 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2491 delete_if_ordinary (temp
->name
);
2492 always_delete_queue
= 0;
2495 /* Delete all the files to be deleted on error. */
2498 delete_failure_queue (void)
2500 struct temp_file
*temp
;
2502 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2503 delete_if_ordinary (temp
->name
);
2507 clear_failure_queue (void)
2509 failure_delete_queue
= 0;
2512 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2514 If DO_MULTI is true iterate over the paths twice, first with multilib
2515 suffix then without, otherwise iterate over the paths once without
2516 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2517 to avoid visiting the same path twice, but we could do better. For
2518 instance, /usr/lib/../lib is considered different from /usr/lib.
2519 At least EXTRA_SPACE chars past the end of the path passed to
2520 CALLBACK are available for use by the callback.
2521 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2523 Returns the value returned by CALLBACK. */
2526 for_each_path (const struct path_prefix
*paths
,
2529 void *(*callback
) (char *, void *),
2530 void *callback_info
)
2532 struct prefix_list
*pl
;
2533 const char *multi_dir
= NULL
;
2534 const char *multi_os_dir
= NULL
;
2535 const char *multi_suffix
;
2536 const char *just_multi_suffix
;
2539 bool skip_multi_dir
= false;
2540 bool skip_multi_os_dir
= false;
2542 multi_suffix
= machine_suffix
;
2543 just_multi_suffix
= just_machine_suffix
;
2544 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2546 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2547 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2548 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2550 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2551 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2555 size_t multi_dir_len
= 0;
2556 size_t multi_os_dir_len
= 0;
2558 size_t just_suffix_len
;
2562 multi_dir_len
= strlen (multi_dir
);
2564 multi_os_dir_len
= strlen (multi_os_dir
);
2565 suffix_len
= strlen (multi_suffix
);
2566 just_suffix_len
= strlen (just_multi_suffix
);
2570 len
= paths
->max_len
+ extra_space
+ 1;
2571 if (suffix_len
> multi_os_dir_len
)
2574 len
+= multi_os_dir_len
;
2575 path
= XNEWVEC (char, len
);
2578 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2580 len
= strlen (pl
->prefix
);
2581 memcpy (path
, pl
->prefix
, len
);
2583 /* Look first in MACHINE/VERSION subdirectory. */
2584 if (!skip_multi_dir
)
2586 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2587 ret
= callback (path
, callback_info
);
2592 /* Some paths are tried with just the machine (ie. target)
2593 subdir. This is used for finding as, ld, etc. */
2595 && pl
->require_machine_suffix
== 2)
2597 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2598 ret
= callback (path
, callback_info
);
2603 /* Now try the base path. */
2604 if (!pl
->require_machine_suffix
2605 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2607 const char *this_multi
;
2608 size_t this_multi_len
;
2610 if (pl
->os_multilib
)
2612 this_multi
= multi_os_dir
;
2613 this_multi_len
= multi_os_dir_len
;
2617 this_multi
= multi_dir
;
2618 this_multi_len
= multi_dir_len
;
2622 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2626 ret
= callback (path
, callback_info
);
2634 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2637 /* Run through the paths again, this time without multilibs.
2638 Don't repeat any we have already seen. */
2641 free (CONST_CAST (char *, multi_dir
));
2643 free (CONST_CAST (char *, multi_suffix
));
2644 multi_suffix
= machine_suffix
;
2645 free (CONST_CAST (char *, just_multi_suffix
));
2646 just_multi_suffix
= just_machine_suffix
;
2649 skip_multi_dir
= true;
2652 free (CONST_CAST (char *, multi_os_dir
));
2653 multi_os_dir
= NULL
;
2656 skip_multi_os_dir
= true;
2661 free (CONST_CAST (char *, multi_dir
));
2662 free (CONST_CAST (char *, multi_suffix
));
2663 free (CONST_CAST (char *, just_multi_suffix
));
2666 free (CONST_CAST (char *, multi_os_dir
));
2672 /* Callback for build_search_list. Adds path to obstack being built. */
2674 struct add_to_obstack_info
{
2681 add_to_obstack (char *path
, void *data
)
2683 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2685 if (info
->check_dir
&& !is_directory (path
, false))
2688 if (!info
->first_time
)
2689 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2691 obstack_grow (info
->ob
, path
, strlen (path
));
2693 info
->first_time
= false;
2697 /* Add or change the value of an environment variable, outputting the
2698 change to standard error if in verbose mode. */
2700 xputenv (const char *string
)
2703 notice ("%s\n", string
);
2704 putenv (CONST_CAST (char *, string
));
2707 /* Build a list of search directories from PATHS.
2708 PREFIX is a string to prepend to the list.
2709 If CHECK_DIR_P is true we ensure the directory exists.
2710 If DO_MULTI is true, multilib paths are output first, then
2712 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2713 It is also used by the --print-search-dirs flag. */
2716 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2717 bool check_dir
, bool do_multi
)
2719 struct add_to_obstack_info info
;
2721 info
.ob
= &collect_obstack
;
2722 info
.check_dir
= check_dir
;
2723 info
.first_time
= true;
2725 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2726 obstack_1grow (&collect_obstack
, '=');
2728 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2730 obstack_1grow (&collect_obstack
, '\0');
2731 return XOBFINISH (&collect_obstack
, char *);
2734 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2738 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2741 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2744 /* Check whether NAME can be accessed in MODE. This is like access,
2745 except that it never considers directories to be executable. */
2748 access_check (const char *name
, int mode
)
2754 if (stat (name
, &st
) < 0
2755 || S_ISDIR (st
.st_mode
))
2759 return access (name
, mode
);
2762 /* Callback for find_a_file. Appends the file name to the directory
2763 path. If the resulting file exists in the right mode, return the
2764 full pathname to the file. */
2766 struct file_at_path_info
{
2775 file_at_path (char *path
, void *data
)
2777 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2778 size_t len
= strlen (path
);
2780 memcpy (path
+ len
, info
->name
, info
->name_len
);
2781 len
+= info
->name_len
;
2783 /* Some systems have a suffix for executable files.
2784 So try appending that first. */
2785 if (info
->suffix_len
)
2787 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2788 if (access_check (path
, info
->mode
) == 0)
2793 if (access_check (path
, info
->mode
) == 0)
2799 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2800 access to check permissions. If DO_MULTI is true, search multilib
2801 paths then non-multilib paths, otherwise do not search multilib paths.
2802 Return 0 if not found, otherwise return its name, allocated with malloc. */
2805 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2808 struct file_at_path_info info
;
2810 #ifdef DEFAULT_ASSEMBLER
2811 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2812 return xstrdup (DEFAULT_ASSEMBLER
);
2815 #ifdef DEFAULT_LINKER
2816 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2817 return xstrdup (DEFAULT_LINKER
);
2820 /* Determine the filename to execute (special case for absolute paths). */
2822 if (IS_ABSOLUTE_PATH (name
))
2824 if (access (name
, mode
) == 0)
2825 return xstrdup (name
);
2831 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2832 info
.name_len
= strlen (info
.name
);
2833 info
.suffix_len
= strlen (info
.suffix
);
2836 return (char*) for_each_path (pprefix
, do_multi
,
2837 info
.name_len
+ info
.suffix_len
,
2838 file_at_path
, &info
);
2841 /* Ranking of prefixes in the sort list. -B prefixes are put before
2844 enum path_prefix_priority
2846 PREFIX_PRIORITY_B_OPT
,
2847 PREFIX_PRIORITY_LAST
2850 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2851 order according to PRIORITY. Within each PRIORITY, new entries are
2854 If WARN is nonzero, we will warn if no file is found
2855 through this prefix. WARN should point to an int
2856 which will be set to 1 if this entry is used.
2858 COMPONENT is the value to be passed to update_path.
2860 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2861 the complete value of machine_suffix.
2862 2 means try both machine_suffix and just_machine_suffix. */
2865 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2866 const char *component
, /* enum prefix_priority */ int priority
,
2867 int require_machine_suffix
, int os_multilib
)
2869 struct prefix_list
*pl
, **prev
;
2872 for (prev
= &pprefix
->plist
;
2873 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2874 prev
= &(*prev
)->next
)
2877 /* Keep track of the longest prefix. */
2879 prefix
= update_path (prefix
, component
);
2880 len
= strlen (prefix
);
2881 if (len
> pprefix
->max_len
)
2882 pprefix
->max_len
= len
;
2884 pl
= XNEW (struct prefix_list
);
2885 pl
->prefix
= prefix
;
2886 pl
->require_machine_suffix
= require_machine_suffix
;
2887 pl
->priority
= priority
;
2888 pl
->os_multilib
= os_multilib
;
2890 /* Insert after PREV. */
2895 /* Same as add_prefix, but prepending target_system_root to prefix. */
2896 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2898 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2899 const char *component
,
2900 /* enum prefix_priority */ int priority
,
2901 int require_machine_suffix
, int os_multilib
)
2903 if (!IS_ABSOLUTE_PATH (prefix
))
2904 fatal ("system path '%s' is not absolute", prefix
);
2906 if (target_system_root
)
2908 if (target_sysroot_suffix
)
2909 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2910 prefix
= concat (target_system_root
, prefix
, NULL
);
2912 /* We have to override this because GCC's notion of sysroot
2913 moves along with GCC. */
2917 add_prefix (pprefix
, prefix
, component
, priority
,
2918 require_machine_suffix
, os_multilib
);
2921 /* Execute the command specified by the arguments on the current line of spec.
2922 When using pipes, this includes several piped-together commands
2923 with `|' between them.
2925 Return 0 if successful, -1 if failed. */
2931 int n_commands
; /* # of command. */
2933 struct pex_obj
*pex
;
2936 const char *prog
; /* program name. */
2937 const char **argv
; /* vector of args. */
2940 struct command
*commands
; /* each command buffer with above info. */
2942 gcc_assert (!processing_spec_function
);
2946 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2947 argbuf
[0] = (string
) ? string
: argbuf
[0];
2948 insert_wrapper (wrapper_string
);
2951 /* Count # of piped commands. */
2952 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2953 if (strcmp (argbuf
[i
], "|") == 0)
2956 /* Get storage for each command. */
2957 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2959 /* Split argbuf into its separate piped processes,
2960 and record info about each one.
2961 Also search for the programs that are to be run. */
2963 commands
[0].prog
= argbuf
[0]; /* first command. */
2964 commands
[0].argv
= &argbuf
[0];
2966 if (!wrapper_string
)
2968 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2969 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2972 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2973 if (strcmp (argbuf
[i
], "|") == 0)
2974 { /* each command. */
2975 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2976 fatal ("-pipe not supported");
2978 argbuf
[i
] = 0; /* termination of command args. */
2979 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2980 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2981 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2984 commands
[n_commands
].argv
[0] = string
;
2988 argbuf
[argbuf_index
] = 0;
2990 /* If -v, print what we are about to do, and maybe query. */
2994 /* For help listings, put a blank line between sub-processes. */
2995 if (print_help_list
)
2996 fputc ('\n', stderr
);
2998 /* Print each piped command as a separate line. */
2999 for (i
= 0; i
< n_commands
; i
++)
3001 const char *const *j
;
3003 if (verbose_only_flag
)
3005 for (j
= commands
[i
].argv
; *j
; j
++)
3008 fprintf (stderr
, " \"");
3009 for (p
= *j
; *p
; ++p
)
3011 if (*p
== '"' || *p
== '\\' || *p
== '$')
3012 fputc ('\\', stderr
);
3015 fputc ('"', stderr
);
3019 for (j
= commands
[i
].argv
; *j
; j
++)
3020 fprintf (stderr
, " %s", *j
);
3022 /* Print a pipe symbol after all but the last command. */
3023 if (i
+ 1 != n_commands
)
3024 fprintf (stderr
, " |");
3025 fprintf (stderr
, "\n");
3028 if (verbose_only_flag
!= 0)
3030 /* verbose_only_flag should act as if the spec was
3031 executed, so increment execution_count before
3032 returning. This prevents spurious warnings about
3033 unused linker input files, etc. */
3038 notice ("\nGo ahead? (y or n) ");
3042 while (getchar () != '\n')
3045 if (i
!= 'y' && i
!= 'Y')
3050 #ifdef ENABLE_VALGRIND_CHECKING
3051 /* Run the each command through valgrind. To simplify prepending the
3052 path to valgrind and the option "-q" (for quiet operation unless
3053 something triggers), we allocate a separate argv array. */
3055 for (i
= 0; i
< n_commands
; i
++)
3061 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3064 argv
= XALLOCAVEC (const char *, argc
+ 3);
3066 argv
[0] = VALGRIND_PATH
;
3068 for (j
= 2; j
< argc
+ 2; j
++)
3069 argv
[j
] = commands
[i
].argv
[j
- 2];
3072 commands
[i
].argv
= argv
;
3073 commands
[i
].prog
= argv
[0];
3077 /* Run each piped subprocess. */
3079 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3080 ? PEX_RECORD_TIMES
: 0),
3081 programname
, temp_filename
);
3083 pfatal_with_name (_("pex_init failed"));
3085 for (i
= 0; i
< n_commands
; i
++)
3089 const char *string
= commands
[i
].argv
[0];
3091 errmsg
= pex_run (pex
,
3092 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3093 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3094 string
, CONST_CAST (char **, commands
[i
].argv
),
3103 pfatal_with_name (errmsg
);
3107 if (string
!= commands
[i
].prog
)
3108 free (CONST_CAST (char *, string
));
3113 /* Wait for all the subprocesses to finish. */
3117 struct pex_time
*times
= NULL
;
3120 statuses
= (int *) alloca (n_commands
* sizeof (int));
3121 if (!pex_get_status (pex
, n_commands
, statuses
))
3122 pfatal_with_name (_("failed to get exit status"));
3124 if (report_times
|| report_times_to_file
)
3126 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3127 if (!pex_get_times (pex
, n_commands
, times
))
3128 pfatal_with_name (_("failed to get process times"));
3133 for (i
= 0; i
< n_commands
; ++i
)
3135 int status
= statuses
[i
];
3137 if (WIFSIGNALED (status
))
3140 /* SIGPIPE is a special case. It happens in -pipe mode
3141 when the compiler dies before the preprocessor is done,
3142 or the assembler dies before the compiler is done.
3143 There's generally been an error already, and this is
3144 just fallout. So don't generate another error unless
3145 we would otherwise have succeeded. */
3146 if (WTERMSIG (status
) == SIGPIPE
3147 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3155 Internal error: %s (program %s)\n\
3156 Please submit a full bug report.\n\
3157 See %s for instructions.",
3158 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3161 else if (WIFEXITED (status
)
3162 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3164 if (WEXITSTATUS (status
) > greatest_status
)
3165 greatest_status
= WEXITSTATUS (status
);
3169 if (report_times
|| report_times_to_file
)
3171 struct pex_time
*pt
= ×
[i
];
3174 ut
= ((double) pt
->user_seconds
3175 + (double) pt
->user_microseconds
/ 1.0e6
);
3176 st
= ((double) pt
->system_seconds
3177 + (double) pt
->system_microseconds
/ 1.0e6
);
3182 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3184 if (report_times_to_file
)
3187 const char *const *j
;
3189 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3191 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3194 for (p
= *j
; *p
; ++p
)
3195 if (*p
== '"' || *p
== '\\' || *p
== '$'
3201 fprintf (report_times_to_file
, " \"");
3202 for (p
= *j
; *p
; ++p
)
3204 if (*p
== '"' || *p
== '\\' || *p
== '$')
3205 fputc ('\\', report_times_to_file
);
3206 fputc (*p
, report_times_to_file
);
3208 fputc ('"', report_times_to_file
);
3211 fprintf (report_times_to_file
, " %s", *j
);
3214 fputc ('\n', report_times_to_file
);
3224 /* Find all the switches given to us
3225 and make a vector describing them.
3226 The elements of the vector are strings, one per switch given.
3227 If a switch uses following arguments, then the `part1' field
3228 is the switch itself and the `args' field
3229 is a null-terminated vector containing the following arguments.
3230 Bits in the `live_cond' field are:
3231 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3232 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3233 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3234 The `validated' field is nonzero if any spec has looked at this switch;
3235 if it remains zero at the end of the run, it must be meaningless. */
3237 #define SWITCH_LIVE 0x1
3238 #define SWITCH_FALSE 0x2
3239 #define SWITCH_IGNORE 0x4
3245 unsigned int live_cond
;
3246 unsigned char validated
;
3247 unsigned char ordering
;
3250 static struct switchstr
*switches
;
3252 static int n_switches
;
3254 /* Set to zero if -fcompare-debug is disabled, positive if it's
3255 enabled and we're running the first compilation, negative if it's
3256 enabled and we're running the second compilation. For most of the
3257 time, it's in the range -1..1, but it can be temporarily set to 2
3258 or 3 to indicate that the -fcompare-debug flags didn't come from
3259 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3260 variable, until a synthesized -fcompare-debug flag is added to the
3264 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3265 int compare_debug_second
;
3267 /* Set to the flags that should be passed to the second compilation in
3268 a -fcompare-debug compilation. */
3269 const char *compare_debug_opt
;
3271 static struct switchstr
*switches_debug_check
[2];
3273 static int n_switches_debug_check
[2];
3275 static char *debug_check_temp_file
[2];
3277 /* Language is one of three things:
3279 1) The name of a real programming language.
3280 2) NULL, indicating that no one has figured out
3282 3) '*', indicating that the file should be passed
3287 const char *language
;
3288 struct compiler
*incompiler
;
3293 /* Also a vector of input files specified. */
3295 static struct infile
*infiles
;
3299 /* True if multiple input files are being compiled to a single
3302 static bool combine_inputs
;
3304 /* This counts the number of libraries added by lang_specific_driver, so that
3305 we can tell if there were any user supplied any files or libraries. */
3307 static int added_libraries
;
3309 /* And a vector of corresponding output files is made up later. */
3311 const char **outfiles
;
3313 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3315 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3316 is true if we should look for an executable suffix. DO_OBJ
3317 is true if we should look for an object suffix. */
3320 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3321 int do_obj ATTRIBUTE_UNUSED
)
3323 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3331 len
= strlen (name
);
3333 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3334 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3335 if (do_obj
&& len
> 2
3336 && name
[len
- 2] == '.'
3337 && name
[len
- 1] == 'o')
3339 obstack_grow (&obstack
, name
, len
- 2);
3340 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3341 name
= XOBFINISH (&obstack
, const char *);
3345 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3346 /* If there is no filetype, make it the executable suffix (which includes
3347 the "."). But don't get confused if we have just "-o". */
3348 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3351 for (i
= len
- 1; i
>= 0; i
--)
3352 if (IS_DIR_SEPARATOR (name
[i
]))
3355 for (i
++; i
< len
; i
++)
3359 obstack_grow (&obstack
, name
, len
);
3360 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3361 strlen (TARGET_EXECUTABLE_SUFFIX
));
3362 name
= XOBFINISH (&obstack
, const char *);
3369 /* Display the command line switches accepted by gcc. */
3373 printf (_("Usage: %s [options] file...\n"), programname
);
3374 fputs (_("Options:\n"), stdout
);
3376 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3377 fputs (_(" --help Display this information\n"), stdout
);
3378 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3379 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3380 fputs (_(" Display specific types of command line options\n"), stdout
);
3382 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3383 fputs (_(" --version Display compiler version information\n"), stdout
);
3384 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3385 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3386 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3387 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3388 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3389 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3390 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3391 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3393 -print-multi-lib Display the mapping between command line options and\n\
3394 multiple library search directories\n"), stdout
);
3395 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3396 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3397 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3398 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3399 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3400 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3401 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3402 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3403 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3404 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3405 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3406 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3408 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3409 prefixes to other gcc components\n"), stdout
);
3410 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3411 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3412 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3413 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3415 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3416 and libraries\n"), stdout
);
3417 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3418 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3419 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3420 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3421 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3422 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3423 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3424 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3425 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3427 -x <language> Specify the language of the following input files\n\
3428 Permissible languages include: c c++ assembler none\n\
3429 'none' means revert to the default behavior of\n\
3430 guessing the language based on the file's extension\n\
3434 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3435 passed on to the various sub-processes invoked by %s. In order to pass\n\
3436 other options on to these processes the -W<letter> options must be used.\n\
3439 /* The rest of the options are displayed by invocations of the various
3444 add_preprocessor_option (const char *option
, int len
)
3446 n_preprocessor_options
++;
3448 if (! preprocessor_options
)
3449 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3451 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3452 n_preprocessor_options
);
3454 preprocessor_options
[n_preprocessor_options
- 1] =
3455 save_string (option
, len
);
3459 add_assembler_option (const char *option
, int len
)
3461 n_assembler_options
++;
3463 if (! assembler_options
)
3464 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3466 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3467 n_assembler_options
);
3469 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3473 add_linker_option (const char *option
, int len
)
3477 if (! linker_options
)
3478 linker_options
= XNEWVEC (char *, n_linker_options
);
3480 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3482 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3485 /* Create the vector `switches' and its contents.
3486 Store its length in `n_switches'. */
3489 process_command (int argc
, const char **argv
)
3494 const char *spec_lang
= 0;
3495 int last_language_n_infiles
;
3496 int lang_n_infiles
= 0;
3497 #ifdef MODIFY_TARGET_NAME
3498 int is_modify_target_name
;
3501 const char *tooldir_prefix
;
3502 char *(*get_relative_prefix
) (const char *, const char *,
3503 const char *) = NULL
;
3505 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3509 added_libraries
= 0;
3511 /* Figure compiler version from version string. */
3513 compiler_version
= temp1
= xstrdup (version_string
);
3515 for (; *temp1
; ++temp1
)
3524 /* If there is a -V or -b option (or both), process it now, before
3525 trying to interpret the rest of the command line.
3526 Use heuristic that all configuration names must have at least
3527 one dash '-'. This allows us to pass options starting with -b. */
3528 if (argc
> 1 && argv
[1][0] == '-'
3529 && (argv
[1][1] == 'V'
3530 || (argv
[1][1] == 'b'
3531 && (argv
[1][2] == '\0'
3532 || NULL
!= strchr (argv
[1] + 2, '-')))))
3534 const char *new_version
= DEFAULT_TARGET_VERSION
;
3535 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3536 const char *progname
= argv
[0];
3544 while (argc
> 1 && argv
[1][0] == '-'
3545 && (argv
[1][1] == 'V'
3546 || (argv
[1][1] == 'b'
3547 && (argv
[1][2] == '\0'
3548 || NULL
!= strchr (argv
[1] + 2, '-')))))
3550 char opt
= argv
[1][1];
3552 if (argv
[1][2] != '\0')
3565 fatal ("'-%c' option must have argument", opt
);
3572 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3573 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3575 new_argv0
= XDUPVAR (char, progname
, baselen
,
3576 baselen
+ concat_length (new_version
, new_machine
,
3577 "-gcc-", NULL
) + 1);
3578 strcpy (new_argv0
+ baselen
, new_machine
);
3579 strcat (new_argv0
, "-gcc-");
3580 strcat (new_argv0
, new_version
);
3582 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3583 new_argv
[0] = new_argv0
;
3585 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3586 NULL
, &status
, &err
);
3591 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3593 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3599 /* Convert new-style -- options to old-style. */
3600 translate_options (&argc
,
3601 CONST_CAST2 (const char *const **, const char ***,
3604 /* Do language-specific adjustment/addition of flags. */
3605 lang_specific_driver (&argc
,
3606 CONST_CAST2 (const char *const **, const char ***,
3610 /* Handle any -no-canonical-prefixes flag early, to assign the function
3611 that builds relative prefixes. This function creates default search
3612 paths that are needed later in normal option handling. */
3614 for (i
= 1; i
< argc
; i
++)
3616 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3618 get_relative_prefix
= make_relative_prefix_ignore_links
;
3622 if (! get_relative_prefix
)
3623 get_relative_prefix
= make_relative_prefix
;
3625 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3626 see if we can create it from the pathname specified in argv[0]. */
3628 gcc_libexec_prefix
= standard_libexec_prefix
;
3630 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3631 if (!gcc_exec_prefix
)
3633 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3634 standard_bindir_prefix
,
3635 standard_exec_prefix
);
3636 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3637 standard_bindir_prefix
,
3638 standard_libexec_prefix
);
3639 if (gcc_exec_prefix
)
3640 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3644 /* make_relative_prefix requires a program name, but
3645 GCC_EXEC_PREFIX is typically a directory name with a trailing
3646 / (which is ignored by make_relative_prefix), so append a
3648 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3649 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3650 standard_exec_prefix
,
3651 standard_libexec_prefix
);
3653 /* The path is unrelocated, so fallback to the original setting. */
3654 if (!gcc_libexec_prefix
)
3655 gcc_libexec_prefix
= standard_libexec_prefix
;
3661 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3662 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3663 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3665 if (gcc_exec_prefix
)
3667 int len
= strlen (gcc_exec_prefix
);
3669 if (len
> (int) sizeof ("/lib/gcc/") - 1
3670 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3672 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3673 if (IS_DIR_SEPARATOR (*temp
)
3674 && strncmp (temp
+ 1, "lib", 3) == 0
3675 && IS_DIR_SEPARATOR (temp
[4])
3676 && strncmp (temp
+ 5, "gcc", 3) == 0)
3677 len
-= sizeof ("/lib/gcc/") - 1;
3680 set_std_prefix (gcc_exec_prefix
, len
);
3681 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3682 PREFIX_PRIORITY_LAST
, 0, 0);
3683 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3684 PREFIX_PRIORITY_LAST
, 0, 0);
3687 /* COMPILER_PATH and LIBRARY_PATH have values
3688 that are lists of directory names with colons. */
3690 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3693 const char *startp
, *endp
;
3694 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3696 startp
= endp
= temp
;
3699 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3701 strncpy (nstore
, startp
, endp
- startp
);
3703 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3704 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3706 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3707 nstore
[endp
- startp
+ 1] = 0;
3710 nstore
[endp
- startp
] = 0;
3711 add_prefix (&exec_prefixes
, nstore
, 0,
3712 PREFIX_PRIORITY_LAST
, 0, 0);
3713 add_prefix (&include_prefixes
, nstore
, 0,
3714 PREFIX_PRIORITY_LAST
, 0, 0);
3717 endp
= startp
= endp
+ 1;
3724 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3725 if (temp
&& *cross_compile
== '0')
3727 const char *startp
, *endp
;
3728 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3730 startp
= endp
= temp
;
3733 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3735 strncpy (nstore
, startp
, endp
- startp
);
3737 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3738 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3740 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3741 nstore
[endp
- startp
+ 1] = 0;
3744 nstore
[endp
- startp
] = 0;
3745 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3746 PREFIX_PRIORITY_LAST
, 0, 1);
3749 endp
= startp
= endp
+ 1;
3756 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3757 GET_ENVIRONMENT (temp
, "LPATH");
3758 if (temp
&& *cross_compile
== '0')
3760 const char *startp
, *endp
;
3761 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3763 startp
= endp
= temp
;
3766 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3768 strncpy (nstore
, startp
, endp
- startp
);
3770 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3771 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3773 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3774 nstore
[endp
- startp
+ 1] = 0;
3777 nstore
[endp
- startp
] = 0;
3778 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3779 PREFIX_PRIORITY_LAST
, 0, 1);
3782 endp
= startp
= endp
+ 1;
3789 /* Scan argv twice. Here, the first time, just count how many switches
3790 there will be in their vector, and how many input files in theirs.
3791 Here we also parse the switches that cc itself uses (e.g. -v). */
3793 for (i
= 1; i
< argc
; i
++)
3795 if (! strcmp (argv
[i
], "-dumpspecs"))
3797 struct spec_list
*sl
;
3799 for (sl
= specs
; sl
; sl
= sl
->next
)
3800 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3801 if (link_command_spec
)
3802 printf ("*link_command:\n%s\n\n", link_command_spec
);
3805 else if (! strcmp (argv
[i
], "-dumpversion"))
3807 printf ("%s\n", spec_version
);
3810 else if (! strcmp (argv
[i
], "-dumpmachine"))
3812 printf ("%s\n", spec_machine
);
3815 else if (strcmp (argv
[i
], "-fversion") == 0)
3817 /* translate_options () has turned --version into -fversion. */
3820 /* We will be passing a dummy file on to the sub-processes. */
3824 /* CPP driver cannot obtain switch from cc1_options. */
3826 add_preprocessor_option ("--version", strlen ("--version"));
3827 add_assembler_option ("--version", strlen ("--version"));
3828 add_linker_option ("--version", strlen ("--version"));
3830 else if (strcmp (argv
[i
], "-fhelp") == 0)
3832 /* translate_options () has turned --help into -fhelp. */
3833 print_help_list
= 1;
3835 /* We will be passing a dummy file on to the sub-processes. */
3839 /* CPP driver cannot obtain switch from cc1_options. */
3841 add_preprocessor_option ("--help", 6);
3842 add_assembler_option ("--help", 6);
3843 add_linker_option ("--help", 6);
3845 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3847 /* translate_options () has turned --help into -fhelp. */
3848 print_subprocess_help
= 2;
3850 /* We will be passing a dummy file on to the sub-processes. */
3854 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3856 /* translate_options() has turned --target-help into -ftarget-help. */
3857 print_subprocess_help
= 1;
3859 /* We will be passing a dummy file on to the sub-processes. */
3863 /* CPP driver cannot obtain switch from cc1_options. */
3865 add_preprocessor_option ("--target-help", 13);
3866 add_assembler_option ("--target-help", 13);
3867 add_linker_option ("--target-help", 13);
3869 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3871 pass_exit_codes
= 1;
3874 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3875 print_search_dirs
= 1;
3876 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3877 print_file_name
= "libgcc.a";
3878 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3879 print_file_name
= argv
[i
] + 17;
3880 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3881 print_prog_name
= argv
[i
] + 17;
3882 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3883 print_multi_lib
= 1;
3884 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3885 print_multi_directory
= 1;
3886 else if (! strcmp (argv
[i
], "-print-sysroot"))
3888 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3889 print_multi_os_directory
= 1;
3890 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3891 print_sysroot_headers_suffix
= 1;
3892 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3894 compare_debug_second
= 1;
3897 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3899 argv
[i
] = "-fcompare-debug=";
3900 goto compare_debug_with_arg
;
3902 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3904 argv
[i
] = "-fcompare-debug=-gtoggle";
3905 goto compare_debug_with_arg
;
3907 #define OPT "-fcompare-debug="
3908 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3911 compare_debug_with_arg
:
3912 opt
= argv
[i
] + sizeof (OPT
) - 1;
3918 if (compare_debug
< 0)
3919 compare_debug_opt
= NULL
;
3921 compare_debug_opt
= opt
;
3924 else if (! strncmp (argv
[i
], "-Wa,", 4))
3927 /* Pass the rest of this option to the assembler. */
3929 /* Split the argument at commas. */
3931 for (j
= 4; argv
[i
][j
]; j
++)
3932 if (argv
[i
][j
] == ',')
3934 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3938 /* Record the part after the last comma. */
3939 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3941 else if (! strncmp (argv
[i
], "-Wp,", 4))
3944 /* Pass the rest of this option to the preprocessor. */
3946 /* Split the argument at commas. */
3948 for (j
= 4; argv
[i
][j
]; j
++)
3949 if (argv
[i
][j
] == ',')
3951 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3955 /* Record the part after the last comma. */
3956 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3958 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3959 /* The +e options to the C++ front-end. */
3961 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3964 /* Split the argument at commas. */
3965 for (j
= 3; argv
[i
][j
]; j
++)
3966 n_infiles
+= (argv
[i
][j
] == ',');
3968 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3971 fatal ("argument to '-Xlinker' is missing");
3976 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3979 fatal ("argument to '-Xpreprocessor' is missing");
3981 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3983 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3986 fatal ("argument to '-Xassembler' is missing");
3988 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3990 else if (strcmp (argv
[i
], "-l") == 0)
3993 fatal ("argument to '-l' is missing");
3998 else if (strncmp (argv
[i
], "-l", 2) == 0)
4000 else if (strcmp (argv
[i
], "-save-temps") == 0)
4002 save_temps_flag
= SAVE_TEMPS_CWD
;
4005 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
4008 if (strcmp (argv
[i
]+12, "cwd") == 0)
4009 save_temps_flag
= SAVE_TEMPS_CWD
;
4010 else if (strcmp (argv
[i
]+12, "obj") == 0
4011 || strcmp (argv
[i
]+12, "object") == 0)
4012 save_temps_flag
= SAVE_TEMPS_OBJ
;
4014 fatal ("'%s' is an unknown -save-temps option", argv
[i
]);
4016 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
4017 /* Already handled as a special case, so ignored here. */
4019 else if (strcmp (argv
[i
], "-combine") == 0)
4024 else if (strcmp (argv
[i
], "-specs") == 0)
4026 struct user_specs
*user
= XNEW (struct user_specs
);
4028 fatal ("argument to '-specs' is missing");
4030 user
->next
= (struct user_specs
*) 0;
4031 user
->filename
= argv
[i
];
4032 if (user_specs_tail
)
4033 user_specs_tail
->next
= user
;
4035 user_specs_head
= user
;
4036 user_specs_tail
= user
;
4038 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4040 struct user_specs
*user
= XNEW (struct user_specs
);
4041 if (strlen (argv
[i
]) == 7)
4042 fatal ("argument to '-specs=' is missing");
4044 user
->next
= (struct user_specs
*) 0;
4045 user
->filename
= argv
[i
] + 7;
4046 if (user_specs_tail
)
4047 user_specs_tail
->next
= user
;
4049 user_specs_head
= user
;
4050 user_specs_tail
= user
;
4052 else if (strcmp (argv
[i
], "-time") == 0)
4054 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4056 if (report_times_to_file
)
4057 fclose (report_times_to_file
);
4058 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4060 else if (strcmp (argv
[i
], "-pipe") == 0)
4062 /* -pipe has to go into the switches array as well as
4067 else if (strcmp (argv
[i
], "-wrapper") == 0)
4070 fatal ("argument to '-wrapper' is missing");
4072 wrapper_string
= argv
[i
];
4076 else if (strcmp (argv
[i
], "-###") == 0)
4078 /* This is similar to -v except that there is no execution
4079 of the commands and the echoed arguments are quoted. It
4080 is intended for use in shell scripts to capture the
4081 driver-generated command line. */
4082 verbose_only_flag
++;
4085 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4087 const char *p
= &argv
[i
][1];
4093 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
4098 fatal ("'-%c' must come at the start of the command line", c
);
4106 if (p
[1] == 0 && i
+ 1 == argc
)
4107 fatal ("argument to '-B' is missing");
4113 len
= strlen (value
);
4115 /* Catch the case where the user has forgotten to append a
4116 directory separator to the path. Note, they may be using
4117 -B to add an executable name prefix, eg "i386-elf-", in
4118 order to distinguish between multiple installations of
4119 GCC in the same directory. Hence we must check to see
4120 if appending a directory separator actually makes a
4121 valid directory name. */
4122 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4123 && is_directory (value
, false))
4125 char *tmp
= XNEWVEC (char, len
+ 2);
4126 strcpy (tmp
, value
);
4127 tmp
[len
] = DIR_SEPARATOR
;
4132 add_prefix (&exec_prefixes
, value
, NULL
,
4133 PREFIX_PRIORITY_B_OPT
, 0, 0);
4134 add_prefix (&startfile_prefixes
, value
, NULL
,
4135 PREFIX_PRIORITY_B_OPT
, 0, 0);
4136 add_prefix (&include_prefixes
, value
, NULL
,
4137 PREFIX_PRIORITY_B_OPT
, 0, 0);
4142 case 'v': /* Print our subcommands and print versions. */
4144 /* If they do anything other than exactly `-v', don't set
4145 verbose_flag; rather, continue on to give the error. */
4164 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4169 /* Forward scan, just in case -S, -E or -c is specified
4176 if (argv
[j
][0] == '-')
4178 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4184 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4185 j
+= skip
- (argv
[j
][2] != 0);
4186 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4193 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4195 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4197 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4199 /* Save the output name in case -save-temps=obj was used. */
4200 if ((p
[1] == 0) && argv
[i
+ 1])
4201 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4203 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4209 #ifdef MODIFY_TARGET_NAME
4210 is_modify_target_name
= 0;
4212 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4213 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4215 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4216 + strlen (spec_machine
));
4219 int made_addition
= 0;
4221 is_modify_target_name
= 1;
4222 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4224 if (modify_target
[j
].add_del
== DELETE
4225 && (! strncmp (q
, modify_target
[j
].str
,
4226 strlen (modify_target
[j
].str
))))
4227 p
+= strlen (modify_target
[j
].str
);
4228 else if (modify_target
[j
].add_del
== ADD
4229 && ! made_addition
&& *p
== '-')
4231 for (r
= modify_target
[j
].str
; *r
!= 0; )
4239 spec_machine
= new_name
;
4242 if (is_modify_target_name
)
4248 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4249 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4250 else if (WORD_SWITCH_TAKES_ARG (p
))
4251 i
+= WORD_SWITCH_TAKES_ARG (p
);
4261 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4262 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4263 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4265 save_temps_length
= strlen (save_temps_prefix
);
4266 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4269 save_temps_length
-= strlen (temp
);
4270 save_temps_prefix
[save_temps_length
] = '\0';
4274 else if (save_temps_prefix
!= NULL
)
4276 free (save_temps_prefix
);
4277 save_temps_prefix
= NULL
;
4280 if (save_temps_flag
&& use_pipes
)
4282 /* -save-temps overrides -pipe, so that temp files are produced */
4283 if (save_temps_flag
)
4284 error ("warning: -pipe ignored because -save-temps specified");
4290 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4292 if (gcd
&& gcd
[0] == '-')
4295 compare_debug_opt
= gcd
;
4298 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4301 compare_debug_opt
= "-gtoggle";
4305 else if (compare_debug
< 0)
4308 gcc_assert (!compare_debug_opt
);
4311 /* Set up the search paths. We add directories that we expect to
4312 contain GNU Toolchain components before directories specified by
4313 the machine description so that we will find GNU components (like
4314 the GNU assembler) before those of the host system. */
4316 /* If we don't know where the toolchain has been installed, use the
4317 configured-in locations. */
4318 if (!gcc_exec_prefix
)
4321 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4322 PREFIX_PRIORITY_LAST
, 1, 0);
4323 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4324 PREFIX_PRIORITY_LAST
, 2, 0);
4325 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4326 PREFIX_PRIORITY_LAST
, 2, 0);
4328 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4329 PREFIX_PRIORITY_LAST
, 1, 0);
4332 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4333 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4334 dir_separator_str
, NULL
);
4336 /* Look for tools relative to the location from which the driver is
4337 running, or, if that is not available, the configured prefix. */
4339 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4340 spec_machine
, dir_separator_str
,
4341 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4343 add_prefix (&exec_prefixes
,
4344 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4345 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4346 add_prefix (&startfile_prefixes
,
4347 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4348 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4350 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4351 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4352 then consider it to relocate with the rest of the GCC installation
4353 if GCC_EXEC_PREFIX is set.
4354 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4355 if (target_system_root
&& gcc_exec_prefix
)
4357 char *tmp_prefix
= get_relative_prefix (argv
[0],
4358 standard_bindir_prefix
,
4359 target_system_root
);
4360 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4362 target_system_root
= tmp_prefix
;
4363 target_system_root_changed
= 1;
4368 /* More prefixes are enabled in main, after we read the specs file
4369 and determine whether this is cross-compilation or not. */
4371 /* Then create the space for the vectors and scan again. */
4373 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4374 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4377 last_language_n_infiles
= -1;
4379 /* This, time, copy the text of each switch and store a pointer
4380 to the copy in the vector of switches.
4381 Store all the infiles in their vector. */
4383 for (i
= 1; i
< argc
; i
++)
4385 /* Just skip the switches that were handled by the preceding loop. */
4386 #ifdef MODIFY_TARGET_NAME
4387 is_modify_target_name
= 0;
4389 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4390 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4391 is_modify_target_name
= 1;
4393 if (is_modify_target_name
)
4397 if (! strncmp (argv
[i
], "-Wa,", 4))
4399 else if (! strncmp (argv
[i
], "-Wp,", 4))
4401 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4403 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4405 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4407 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4409 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4411 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4413 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4415 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4417 else if (! strcmp (argv
[i
], "-print-sysroot"))
4419 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4421 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4423 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4425 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4426 target_system_root_changed
= 1;
4428 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4430 /* Compensate for the +e options to the C++ front-end;
4431 they're there simply for cfront call-compatibility. We do
4432 some magic in default_compilers to pass them down properly.
4433 Note we deliberately start at the `+' here, to avoid passing
4434 -e0 or -e1 down into the linker. */
4435 switches
[n_switches
].part1
= &argv
[i
][0];
4436 switches
[n_switches
].args
= 0;
4437 switches
[n_switches
].live_cond
= 0;
4438 switches
[n_switches
].validated
= 0;
4441 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4444 /* Split the argument at commas. */
4446 for (j
= 4; argv
[i
][j
]; j
++)
4447 if (argv
[i
][j
] == ',')
4449 infiles
[n_infiles
].language
= "*";
4450 infiles
[n_infiles
++].name
4451 = save_string (argv
[i
] + prev
, j
- prev
);
4454 /* Record the part after the last comma. */
4455 infiles
[n_infiles
].language
= "*";
4456 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4458 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4460 infiles
[n_infiles
].language
= "*";
4461 infiles
[n_infiles
++].name
= argv
[++i
];
4463 /* Xassembler and Xpreprocessor were already handled in the first argv
4464 scan, so all we need to do here is ignore them and their argument. */
4465 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4467 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4469 else if (strcmp (argv
[i
], "-l") == 0)
4470 { /* POSIX allows separation of -l and the lib arg;
4471 canonicalize by concatenating -l with its arg */
4472 infiles
[n_infiles
].language
= "*";
4473 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4475 else if (strncmp (argv
[i
], "-l", 2) == 0)
4477 infiles
[n_infiles
].language
= "*";
4478 infiles
[n_infiles
++].name
= argv
[i
];
4480 else if (strcmp (argv
[i
], "-wrapper") == 0)
4482 else if (strcmp (argv
[i
], "-specs") == 0)
4484 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4486 else if (strcmp (argv
[i
], "-time") == 0)
4488 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4490 else if (strcmp (argv
[i
], "-###") == 0)
4492 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4494 const char *p
= &argv
[i
][1];
4499 if (p
[1] == 0 && i
+ 1 == argc
)
4500 fatal ("argument to '-x' is missing");
4502 spec_lang
= argv
[++i
];
4505 if (! strcmp (spec_lang
, "none"))
4506 /* Suppress the warning if -xnone comes after the last input
4507 file, because alternate command interfaces like g++ might
4508 find it useful to place -xnone after each input file. */
4511 last_language_n_infiles
= n_infiles
;
4514 switches
[n_switches
].part1
= p
;
4515 /* Deal with option arguments in separate argv elements. */
4516 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4517 || WORD_SWITCH_TAKES_ARG (p
))
4520 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4524 /* Count only the option arguments in separate argv elements. */
4525 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4527 if (i
+ n_args
>= argc
)
4528 fatal ("argument to '-%s' is missing", p
);
4529 switches
[n_switches
].args
4530 = XNEWVEC (const char *, n_args
+ 1);
4532 switches
[n_switches
].args
[j
++] = argv
[++i
];
4533 /* Null-terminate the vector. */
4534 switches
[n_switches
].args
[j
] = 0;
4536 else if (strchr (switches_need_spaces
, c
))
4538 /* On some systems, ld cannot handle some options without
4539 a space. So split the option from its argument. */
4540 char *part1
= XNEWVEC (char, 2);
4544 switches
[n_switches
].part1
= part1
;
4545 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4546 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4547 switches
[n_switches
].args
[1] = 0;
4550 switches
[n_switches
].args
= 0;
4552 switches
[n_switches
].live_cond
= 0;
4553 switches
[n_switches
].validated
= 0;
4554 switches
[n_switches
].ordering
= 0;
4555 /* These are always valid, since gcc.c itself understands the
4556 first four and gfortranspec.c understands -static-libgfortran. */
4557 if (!strcmp (p
, "save-temps")
4558 || !strcmp (p
, "static-libgcc")
4559 || !strcmp (p
, "shared-libgcc")
4560 || !strcmp (p
, "pipe")
4561 || !strcmp (p
, "static-libgfortran"))
4562 switches
[n_switches
].validated
= 1;
4565 char ch
= switches
[n_switches
].part1
[0];
4567 switches
[n_switches
].validated
= 1;
4573 const char *p
= strchr (argv
[i
], '@');
4575 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4576 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4579 fname
= xstrdup (argv
[i
]);
4582 fname
= (char *)xmalloc (p
- argv
[i
] + 1);
4583 memcpy (fname
, argv
[i
], p
- argv
[i
]);
4584 fname
[p
- argv
[i
]] = '\0';
4587 if (strcmp (fname
, "-") != 0 && access (fname
, F_OK
) < 0)
4589 perror_with_name (fname
);
4594 infiles
[n_infiles
].language
= spec_lang
;
4595 infiles
[n_infiles
++].name
= argv
[i
];
4602 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4603 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4605 if (compare_debug
== 2 || compare_debug
== 3)
4607 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4610 switches
[n_switches
].args
= 0;
4611 switches
[n_switches
].live_cond
= 0;
4612 switches
[n_switches
].validated
= 0;
4613 switches
[n_switches
].ordering
= 0;
4618 /* Ensure we only invoke each subprocess once. */
4619 if (print_subprocess_help
|| print_help_list
|| print_version
)
4623 /* Create a dummy input file, so that we can pass
4624 the help option on to the various sub-processes. */
4625 infiles
[0].language
= "c";
4626 infiles
[0].name
= "help-dummy";
4629 switches
[n_switches
].part1
= 0;
4630 infiles
[n_infiles
].name
= 0;
4633 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4634 and place that in the environment. */
4637 set_collect_gcc_options (void)
4642 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4644 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4645 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4648 for (i
= 0; (int) i
< n_switches
; i
++)
4650 const char *const *args
;
4653 obstack_grow (&collect_obstack
, " ", 1);
4657 /* Ignore elided switches. */
4658 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4661 obstack_grow (&collect_obstack
, "'-", 2);
4662 q
= switches
[i
].part1
;
4663 while ((p
= strchr (q
, '\'')))
4665 obstack_grow (&collect_obstack
, q
, p
- q
);
4666 obstack_grow (&collect_obstack
, "'\\''", 4);
4669 obstack_grow (&collect_obstack
, q
, strlen (q
));
4670 obstack_grow (&collect_obstack
, "'", 1);
4672 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4674 obstack_grow (&collect_obstack
, " '", 2);
4676 while ((p
= strchr (q
, '\'')))
4678 obstack_grow (&collect_obstack
, q
, p
- q
);
4679 obstack_grow (&collect_obstack
, "'\\''", 4);
4682 obstack_grow (&collect_obstack
, q
, strlen (q
));
4683 obstack_grow (&collect_obstack
, "'", 1);
4686 obstack_grow (&collect_obstack
, "\0", 1);
4687 xputenv (XOBFINISH (&collect_obstack
, char *));
4690 /* Process a spec string, accumulating and running commands. */
4692 /* These variables describe the input file name.
4693 input_file_number is the index on outfiles of this file,
4694 so that the output file name can be stored for later use by %o.
4695 input_basename is the start of the part of the input file
4696 sans all directory names, and basename_length is the number
4697 of characters starting there excluding the suffix .c or whatever. */
4699 static const char *input_filename
;
4700 static int input_file_number
;
4701 size_t input_filename_length
;
4702 static int basename_length
;
4703 static int suffixed_basename_length
;
4704 static const char *input_basename
;
4705 static const char *input_suffix
;
4706 #ifndef HOST_LACKS_INODE_NUMBERS
4707 static struct stat input_stat
;
4709 static int input_stat_set
;
4711 /* The compiler used to process the current input file. */
4712 static struct compiler
*input_file_compiler
;
4714 /* These are variables used within do_spec and do_spec_1. */
4716 /* Nonzero if an arg has been started and not yet terminated
4717 (with space, tab or newline). */
4718 static int arg_going
;
4720 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4721 is a temporary file name. */
4722 static int delete_this_arg
;
4724 /* Nonzero means %w has been seen; the next arg to be terminated
4725 is the output file name of this compilation. */
4726 static int this_is_output_file
;
4728 /* Nonzero means %s has been seen; the next arg to be terminated
4729 is the name of a library file and we should try the standard
4730 search dirs for it. */
4731 static int this_is_library_file
;
4733 /* Nonzero means %T has been seen; the next arg to be terminated
4734 is the name of a linker script and we should try all of the
4735 standard search dirs for it. If it is found insert a --script
4736 command line switch and then substitute the full path in place,
4737 otherwise generate an error message. */
4738 static int this_is_linker_script
;
4740 /* Nonzero means that the input of this command is coming from a pipe. */
4741 static int input_from_pipe
;
4743 /* Nonnull means substitute this for any suffix when outputting a switches
4745 static const char *suffix_subst
;
4747 /* If there is an argument being accumulated, terminate it and store it. */
4750 end_going_arg (void)
4756 obstack_1grow (&obstack
, 0);
4757 string
= XOBFINISH (&obstack
, const char *);
4758 if (this_is_library_file
)
4759 string
= find_file (string
);
4760 if (this_is_linker_script
)
4762 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4764 if (full_script_path
== NULL
)
4766 error (_("unable to locate default linker script '%s' in the library search paths"), string
);
4767 /* Script was not found on search path. */
4770 store_arg ("--script", false, false);
4771 string
= full_script_path
;
4773 store_arg (string
, delete_this_arg
, this_is_output_file
);
4774 if (this_is_output_file
)
4775 outfiles
[input_file_number
] = string
;
4781 /* Parse the WRAPPER string which is a comma separated list of the command line
4782 and insert them into the beginning of argbuf. */
4785 insert_wrapper (const char *wrapper
)
4789 char *buf
= xstrdup (wrapper
);
4798 while ((p
= strchr (p
, ',')) != NULL
);
4800 if (argbuf_index
+ n
>= argbuf_length
)
4802 argbuf_length
= argbuf_length
* 2;
4803 while (argbuf_length
< argbuf_index
+ n
)
4805 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4807 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4808 argbuf
[i
+ n
] = argbuf
[i
];
4821 while ((p
= strchr (p
, ',')) != NULL
);
4822 gcc_assert (i
== n
);
4826 /* Process the spec SPEC and run the commands specified therein.
4827 Returns 0 if the spec is successfully processed; -1 if failed. */
4830 do_spec (const char *spec
)
4834 value
= do_spec_2 (spec
);
4836 /* Force out any unfinished command.
4837 If -pipe, this forces out the last command if it ended in `|'. */
4840 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4843 set_collect_gcc_options ();
4845 if (argbuf_index
> 0)
4853 do_spec_2 (const char *spec
)
4859 delete_this_arg
= 0;
4860 this_is_output_file
= 0;
4861 this_is_library_file
= 0;
4862 this_is_linker_script
= 0;
4863 input_from_pipe
= 0;
4864 suffix_subst
= NULL
;
4866 result
= do_spec_1 (spec
, 0, NULL
);
4874 /* Process the given spec string and add any new options to the end
4875 of the switches/n_switches array. */
4878 do_option_spec (const char *name
, const char *spec
)
4880 unsigned int i
, value_count
, value_len
;
4881 const char *p
, *q
, *value
;
4882 char *tmp_spec
, *tmp_spec_p
;
4884 if (configure_default_options
[0].name
== NULL
)
4887 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4888 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4890 if (i
== ARRAY_SIZE (configure_default_options
))
4893 value
= configure_default_options
[i
].value
;
4894 value_len
= strlen (value
);
4896 /* Compute the size of the final spec. */
4899 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4905 /* Replace each %(VALUE) by the specified value. */
4906 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4907 + value_count
* (value_len
- strlen ("%(VALUE)")));
4908 tmp_spec_p
= tmp_spec
;
4910 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4912 memcpy (tmp_spec_p
, q
, p
- q
);
4913 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4914 memcpy (tmp_spec_p
, value
, value_len
);
4915 tmp_spec_p
+= value_len
;
4916 q
= p
+ strlen ("%(VALUE)");
4918 strcpy (tmp_spec_p
, q
);
4920 do_self_spec (tmp_spec
);
4923 /* Process the given spec string and add any new options to the end
4924 of the switches/n_switches array. */
4927 do_self_spec (const char *spec
)
4930 do_spec_1 (" ", 0, NULL
);
4932 if (argbuf_index
> 0)
4936 switches
= XRESIZEVEC (struct switchstr
, switches
,
4937 n_switches
+ argbuf_index
+ 1);
4939 for (i
= 0; i
< argbuf_index
; i
++)
4941 struct switchstr
*sw
;
4942 const char *p
= argbuf
[i
];
4945 /* Each switch should start with '-'. */
4947 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4952 sw
= &switches
[n_switches
++];
4958 /* Deal with option arguments in separate argv elements. */
4959 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4960 || WORD_SWITCH_TAKES_ARG (p
))
4963 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4967 /* Count only the option arguments in separate argv elements. */
4968 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4970 if (i
+ n_args
>= argbuf_index
)
4971 fatal ("argument to '-%s' is missing", p
);
4973 = XNEWVEC (const char *, n_args
+ 1);
4975 sw
->args
[j
++] = argbuf
[++i
];
4976 /* Null-terminate the vector. */
4979 else if (strchr (switches_need_spaces
, c
))
4981 /* On some systems, ld cannot handle some options without
4982 a space. So split the option from its argument. */
4983 char *part1
= XNEWVEC (char, 2);
4988 sw
->args
= XNEWVEC (const char *, 2);
4989 sw
->args
[0] = xstrdup (p
+1);
4996 switches
[n_switches
].part1
= 0;
5000 /* Callback for processing %D and %I specs. */
5002 struct spec_path_info
{
5007 bool separate_options
;
5011 spec_path (char *path
, void *data
)
5013 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
5017 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
5020 if (info
->append_len
!= 0)
5022 len
= strlen (path
);
5023 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5026 if (!is_directory (path
, true))
5029 do_spec_1 (info
->option
, 1, NULL
);
5030 if (info
->separate_options
)
5031 do_spec_1 (" ", 0, NULL
);
5033 if (info
->append_len
== 0)
5035 len
= strlen (path
);
5036 save
= path
[len
- 1];
5037 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5038 path
[len
- 1] = '\0';
5041 do_spec_1 (path
, 1, NULL
);
5042 do_spec_1 (" ", 0, NULL
);
5044 /* Must not damage the original path. */
5045 if (info
->append_len
== 0)
5046 path
[len
- 1] = save
;
5051 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5055 create_at_file (char **argv
)
5057 char *temp_file
= make_temp_file ("");
5058 char *at_argument
= concat ("@", temp_file
, NULL
);
5059 FILE *f
= fopen (temp_file
, "w");
5063 fatal ("could not open temporary response file %s",
5066 status
= writeargv (argv
, f
);
5069 fatal ("could not write to temporary response file %s",
5072 status
= fclose (f
);
5075 fatal ("could not close temporary response file %s",
5078 store_arg (at_argument
, 0, 0);
5080 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5083 /* True if we should compile INFILE. */
5086 compile_input_file_p (struct infile
*infile
)
5088 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5089 if (infile
->incompiler
== input_file_compiler
)
5094 /* Process the sub-spec SPEC as a portion of a larger spec.
5095 This is like processing a whole spec except that we do
5096 not initialize at the beginning and we do not supply a
5097 newline by default at the end.
5098 INSWITCH nonzero means don't process %-sequences in SPEC;
5099 in this case, % is treated as an ordinary character.
5100 This is used while substituting switches.
5101 INSWITCH nonzero also causes SPC not to terminate an argument.
5103 Value is zero unless a line was finished
5104 and the command on that line reported an error. */
5107 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5109 const char *p
= spec
;
5115 /* If substituting a switch, treat all chars like letters.
5116 Otherwise, NL, SPC, TAB and % are special. */
5117 switch (inswitch
? 'a' : c
)
5122 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5124 /* A `|' before the newline means use a pipe here,
5125 but only if -pipe was specified.
5126 Otherwise, execute now and don't pass the `|' as an arg. */
5129 input_from_pipe
= 1;
5136 set_collect_gcc_options ();
5138 if (argbuf_index
> 0)
5144 /* Reinitialize for a new command, and for a new argument. */
5147 delete_this_arg
= 0;
5148 this_is_output_file
= 0;
5149 this_is_library_file
= 0;
5150 this_is_linker_script
= 0;
5151 input_from_pipe
= 0;
5158 obstack_1grow (&obstack
, c
);
5166 /* Reinitialize for a new argument. */
5167 delete_this_arg
= 0;
5168 this_is_output_file
= 0;
5169 this_is_library_file
= 0;
5170 this_is_linker_script
= 0;
5177 fatal ("spec '%s' invalid", spec
);
5180 if (save_temps_length
)
5181 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5183 obstack_grow (&obstack
, input_basename
, basename_length
);
5184 if (compare_debug
< 0)
5185 obstack_grow (&obstack
, ".gk", 3);
5190 if (save_temps_length
)
5191 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5193 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5194 if (compare_debug
< 0)
5195 obstack_grow (&obstack
, ".gk", 3);
5200 delete_this_arg
= 2;
5203 /* Dump out the directories specified with LIBRARY_PATH,
5204 followed by the absolute directories
5205 that we search for startfiles. */
5208 struct spec_path_info info
;
5211 info
.append_len
= 0;
5212 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5213 /* Used on systems which record the specified -L dirs
5214 and use them to search for dynamic linking.
5215 Relative directories always come from -B,
5216 and it is better not to use them for searching
5217 at run time. In particular, stage1 loses. */
5218 info
.omit_relative
= true;
5220 info
.omit_relative
= false;
5222 info
.separate_options
= false;
5224 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5229 /* %efoo means report an error with `foo' as error message
5230 and don't execute any more commands for this file. */
5234 while (*p
!= 0 && *p
!= '\n')
5236 buf
= (char *) alloca (p
- q
+ 1);
5237 strncpy (buf
, q
, p
- q
);
5244 /* %nfoo means report a notice with `foo' on stderr. */
5248 while (*p
!= 0 && *p
!= '\n')
5250 buf
= (char *) alloca (p
- q
+ 1);
5251 strncpy (buf
, q
, p
- q
);
5253 notice ("%s\n", buf
);
5263 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5264 defined, and it is not a directory, and it is
5265 writable, use it. Otherwise, treat this like any
5266 other temporary file. */
5268 if ((!save_temps_flag
)
5269 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5270 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5272 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5273 strlen (HOST_BIT_BUCKET
));
5274 delete_this_arg
= 0;
5279 goto create_temp_file
;
5283 obstack_1grow (&obstack
, '-');
5284 delete_this_arg
= 0;
5287 /* consume suffix */
5288 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5290 if (p
[0] == '%' && p
[1] == 'O')
5295 goto create_temp_file
;
5299 /* consume suffix */
5300 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5302 if (p
[0] == '%' && p
[1] == 'O')
5307 goto create_temp_file
;
5313 struct temp_name
*t
;
5315 const char *suffix
= p
;
5316 char *saved_suffix
= NULL
;
5318 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5320 suffix_length
= p
- suffix
;
5321 if (p
[0] == '%' && p
[1] == 'O')
5324 /* We don't support extra suffix characters after %O. */
5325 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5326 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5327 if (suffix_length
== 0)
5328 suffix
= TARGET_OBJECT_SUFFIX
;
5332 = XNEWVEC (char, suffix_length
5333 + strlen (TARGET_OBJECT_SUFFIX
));
5334 strncpy (saved_suffix
, suffix
, suffix_length
);
5335 strcpy (saved_suffix
+ suffix_length
,
5336 TARGET_OBJECT_SUFFIX
);
5338 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5341 if (compare_debug
< 0)
5343 suffix
= concat (".gk", suffix
, NULL
);
5347 /* If -save-temps=obj and -o were specified, use that for the
5349 if (save_temps_length
)
5352 temp_filename_length
5353 = save_temps_length
+ suffix_length
+ 1;
5354 tmp
= (char *) alloca (temp_filename_length
);
5355 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5356 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5357 tmp
[save_temps_length
+ suffix_length
] = '\0';
5358 temp_filename
= save_string (tmp
,
5359 temp_filename_length
+ 1);
5360 obstack_grow (&obstack
, temp_filename
,
5361 temp_filename_length
);
5363 delete_this_arg
= 0;
5367 /* If the input_filename has the same suffix specified
5368 for the %g, %u, or %U, and -save-temps is specified,
5369 we could end up using that file as an intermediate
5370 thus clobbering the user's source file (.e.g.,
5371 gcc -save-temps foo.s would clobber foo.s with the
5372 output of cpp0). So check for this condition and
5373 generate a temp file as the intermediate. */
5375 if (save_temps_flag
)
5378 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5379 tmp
= (char *) alloca (temp_filename_length
);
5380 memcpy (tmp
, input_basename
, basename_length
);
5381 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5382 tmp
[basename_length
+ suffix_length
] = '\0';
5383 temp_filename
= tmp
;
5385 if (strcmp (temp_filename
, input_filename
) != 0)
5387 #ifndef HOST_LACKS_INODE_NUMBERS
5388 struct stat st_temp
;
5390 /* Note, set_input() resets input_stat_set to 0. */
5391 if (input_stat_set
== 0)
5393 input_stat_set
= stat (input_filename
, &input_stat
);
5394 if (input_stat_set
>= 0)
5398 /* If we have the stat for the input_filename
5399 and we can do the stat for the temp_filename
5400 then the they could still refer to the same
5401 file if st_dev/st_ino's are the same. */
5402 if (input_stat_set
!= 1
5403 || stat (temp_filename
, &st_temp
) < 0
5404 || input_stat
.st_dev
!= st_temp
.st_dev
5405 || input_stat
.st_ino
!= st_temp
.st_ino
)
5407 /* Just compare canonical pathnames. */
5408 char* input_realname
= lrealpath (input_filename
);
5409 char* temp_realname
= lrealpath (temp_filename
);
5410 bool files_differ
= strcmp (input_realname
, temp_realname
);
5411 free (input_realname
);
5412 free (temp_realname
);
5416 temp_filename
= save_string (temp_filename
,
5417 temp_filename_length
+ 1);
5418 obstack_grow (&obstack
, temp_filename
,
5419 temp_filename_length
);
5421 delete_this_arg
= 0;
5427 /* See if we already have an association of %g/%u/%U and
5429 for (t
= temp_names
; t
; t
= t
->next
)
5430 if (t
->length
== suffix_length
5431 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5432 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5435 /* Make a new association if needed. %u and %j
5437 if (t
== 0 || c
== 'u' || c
== 'j')
5441 t
= XNEW (struct temp_name
);
5442 t
->next
= temp_names
;
5445 t
->length
= suffix_length
;
5448 t
->suffix
= saved_suffix
;
5449 saved_suffix
= NULL
;
5452 t
->suffix
= save_string (suffix
, suffix_length
);
5453 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5454 temp_filename
= make_temp_file (t
->suffix
);
5455 temp_filename_length
= strlen (temp_filename
);
5456 t
->filename
= temp_filename
;
5457 t
->filename_length
= temp_filename_length
;
5461 free (saved_suffix
);
5463 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5464 delete_this_arg
= 1;
5472 if (at_file_supplied
)
5474 /* We are going to expand `%i' to `@FILE', where FILE
5475 is a newly-created temporary filename. The filenames
5476 that would usually be expanded in place of %o will be
5477 written to the temporary file. */
5482 for (i
= 0; i
< n_infiles
; i
++)
5483 if (compile_input_file_p (&infiles
[i
]))
5486 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5488 /* Copy the strings over. */
5489 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5490 if (compile_input_file_p (&infiles
[i
]))
5492 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5493 infiles
[i
].compiled
= true;
5498 create_at_file (argv
);
5501 for (i
= 0; (int) i
< n_infiles
; i
++)
5502 if (compile_input_file_p (&infiles
[i
]))
5504 store_arg (infiles
[i
].name
, 0, 0);
5505 infiles
[i
].compiled
= true;
5510 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5517 struct spec_path_info info
;
5521 do_spec_1 ("-imultilib", 1, NULL
);
5522 /* Make this a separate argument. */
5523 do_spec_1 (" ", 0, NULL
);
5524 do_spec_1 (multilib_dir
, 1, NULL
);
5525 do_spec_1 (" ", 0, NULL
);
5528 if (gcc_exec_prefix
)
5530 do_spec_1 ("-iprefix", 1, NULL
);
5531 /* Make this a separate argument. */
5532 do_spec_1 (" ", 0, NULL
);
5533 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5534 do_spec_1 (" ", 0, NULL
);
5537 if (target_system_root_changed
||
5538 (target_system_root
&& target_sysroot_hdrs_suffix
))
5540 do_spec_1 ("-isysroot", 1, NULL
);
5541 /* Make this a separate argument. */
5542 do_spec_1 (" ", 0, NULL
);
5543 do_spec_1 (target_system_root
, 1, NULL
);
5544 if (target_sysroot_hdrs_suffix
)
5545 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5546 do_spec_1 (" ", 0, NULL
);
5549 info
.option
= "-isystem";
5550 info
.append
= "include";
5551 info
.append_len
= strlen (info
.append
);
5552 info
.omit_relative
= false;
5553 info
.separate_options
= true;
5555 for_each_path (&include_prefixes
, false, info
.append_len
,
5558 info
.append
= "include-fixed";
5559 if (*sysroot_hdrs_suffix_spec
)
5560 info
.append
= concat (info
.append
, dir_separator_str
,
5561 multilib_dir
, NULL
);
5562 info
.append_len
= strlen (info
.append
);
5563 for_each_path (&include_prefixes
, false, info
.append_len
,
5570 int max
= n_infiles
;
5571 max
+= lang_specific_extra_outfiles
;
5573 if (HAVE_GNU_LD
&& at_file_supplied
)
5575 /* We are going to expand `%o' to `@FILE', where FILE
5576 is a newly-created temporary filename. The filenames
5577 that would usually be expanded in place of %o will be
5578 written to the temporary file. */
5583 /* Convert OUTFILES into a form suitable for writeargv. */
5585 /* Determine how many are non-NULL. */
5586 for (n_files
= 0, i
= 0; i
< max
; i
++)
5587 n_files
+= outfiles
[i
] != NULL
;
5589 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5591 /* Copy the strings over. */
5592 for (i
= 0, j
= 0; i
< max
; i
++)
5595 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5600 create_at_file (argv
);
5603 for (i
= 0; i
< max
; i
++)
5605 store_arg (outfiles
[i
], 0, 0);
5610 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5615 this_is_library_file
= 1;
5619 this_is_linker_script
= 1;
5623 outfiles
[input_file_number
] = NULL
;
5627 this_is_output_file
= 1;
5632 int cur_index
= argbuf_index
;
5633 /* Handle the {...} following the %W. */
5635 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5636 p
= handle_braces (p
+ 1);
5640 /* If any args were output, mark the last one for deletion
5642 if (argbuf_index
!= cur_index
)
5643 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5647 /* %x{OPTION} records OPTION for %X to output. */
5653 /* Skip past the option value and make a copy. */
5655 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5658 string
= save_string (p1
+ 1, p
- p1
- 2);
5660 /* See if we already recorded this option. */
5661 for (i
= 0; i
< n_linker_options
; i
++)
5662 if (! strcmp (string
, linker_options
[i
]))
5668 /* This option is new; add it. */
5669 add_linker_option (string
, strlen (string
));
5673 /* Dump out the options accumulated previously using %x. */
5675 for (i
= 0; i
< n_linker_options
; i
++)
5677 do_spec_1 (linker_options
[i
], 1, NULL
);
5678 /* Make each accumulated option a separate argument. */
5679 do_spec_1 (" ", 0, NULL
);
5683 /* Dump out the options accumulated previously using -Wa,. */
5685 for (i
= 0; i
< n_assembler_options
; i
++)
5687 do_spec_1 (assembler_options
[i
], 1, NULL
);
5688 /* Make each accumulated option a separate argument. */
5689 do_spec_1 (" ", 0, NULL
);
5693 /* Dump out the options accumulated previously using -Wp,. */
5695 for (i
= 0; i
< n_preprocessor_options
; i
++)
5697 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5698 /* Make each accumulated option a separate argument. */
5699 do_spec_1 (" ", 0, NULL
);
5703 /* Here are digits and numbers that just process
5704 a certain constant string as a spec. */
5707 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5713 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5719 value
= do_spec_1 (asm_spec
, 0, NULL
);
5725 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5732 const char *const spec
5733 = (input_file_compiler
->cpp_spec
5734 ? input_file_compiler
->cpp_spec
5736 value
= do_spec_1 (spec
, 0, NULL
);
5743 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5749 value
= do_spec_1 (link_spec
, 0, NULL
);
5755 value
= do_spec_1 (lib_spec
, 0, NULL
);
5761 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5767 /* We assume there is a directory
5768 separator at the end of this string. */
5769 if (target_system_root
)
5771 obstack_grow (&obstack
, target_system_root
,
5772 strlen (target_system_root
));
5773 if (target_sysroot_suffix
)
5774 obstack_grow (&obstack
, target_sysroot_suffix
,
5775 strlen (target_sysroot_suffix
));
5780 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5785 /* Here we define characters other than letters and digits. */
5788 p
= handle_braces (p
);
5794 p
= handle_spec_function (p
);
5800 obstack_1grow (&obstack
, '%');
5807 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5809 suffix_subst
= save_string (p
- 1, len
+ 1);
5814 /* Henceforth ignore the option(s) matching the pattern
5819 int have_wildcard
= 0;
5822 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5825 if (p
[len
-1] == '*')
5828 for (i
= 0; i
< n_switches
; i
++)
5829 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5830 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5832 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5833 switches
[i
].validated
= 1;
5841 if (soft_matched_part
)
5843 do_spec_1 (soft_matched_part
, 1, NULL
);
5844 do_spec_1 (" ", 0, NULL
);
5847 /* Catch the case where a spec string contains something like
5848 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5849 hand side of the :. */
5850 error ("spec failure: '%%*' has not been initialized by pattern match");
5853 /* Process a string found as the value of a spec given by name.
5854 This feature allows individual machine descriptions
5855 to add and use their own specs.
5856 %[...] modifies -D options the way %P does;
5857 %(...) uses the spec unmodified. */
5859 error ("warning: use of obsolete %%[ operator in specs");
5862 const char *name
= p
;
5863 struct spec_list
*sl
;
5866 /* The string after the S/P is the name of a spec that is to be
5868 while (*p
&& *p
!= ')' && *p
!= ']')
5871 /* See if it's in the list. */
5872 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5873 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5875 name
= *(sl
->ptr_spec
);
5877 notice ("Processing spec %c%s%c, which is '%s'\n",
5878 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5887 value
= do_spec_1 (name
, 0, NULL
);
5893 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5895 const char *y
= name
;
5898 /* Copy all of NAME into BUF, but put __ after
5899 every -D and at the end of each arg. */
5902 if (! strncmp (y
, "-D", 2))
5913 && (*y
== ' ' || *y
== '\t' || *y
== '='
5914 || *y
== '}' || *y
== 0))
5927 value
= do_spec_1 (buf
, 0, NULL
);
5933 /* Discard the closing paren or bracket. */
5940 error ("spec failure: unrecognized spec option '%c'", c
);
5946 /* Backslash: treat next character as ordinary. */
5951 /* Ordinary character: put it into the current argument. */
5952 obstack_1grow (&obstack
, c
);
5956 /* End of string. If we are processing a spec function, we need to
5957 end any pending argument. */
5958 if (processing_spec_function
)
5964 /* Look up a spec function. */
5966 static const struct spec_function
*
5967 lookup_spec_function (const char *name
)
5969 const struct spec_function
*sf
;
5971 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5972 if (strcmp (sf
->name
, name
) == 0)
5978 /* Evaluate a spec function. */
5981 eval_spec_function (const char *func
, const char *args
)
5983 const struct spec_function
*sf
;
5984 const char *funcval
;
5986 /* Saved spec processing context. */
5987 int save_argbuf_index
;
5988 int save_argbuf_length
;
5989 const char **save_argbuf
;
5992 int save_delete_this_arg
;
5993 int save_this_is_output_file
;
5994 int save_this_is_library_file
;
5995 int save_input_from_pipe
;
5996 int save_this_is_linker_script
;
5997 const char *save_suffix_subst
;
6000 sf
= lookup_spec_function (func
);
6002 fatal ("unknown spec function '%s'", func
);
6004 /* Push the spec processing context. */
6005 save_argbuf_index
= argbuf_index
;
6006 save_argbuf_length
= argbuf_length
;
6007 save_argbuf
= argbuf
;
6009 save_arg_going
= arg_going
;
6010 save_delete_this_arg
= delete_this_arg
;
6011 save_this_is_output_file
= this_is_output_file
;
6012 save_this_is_library_file
= this_is_library_file
;
6013 save_this_is_linker_script
= this_is_linker_script
;
6014 save_input_from_pipe
= input_from_pipe
;
6015 save_suffix_subst
= suffix_subst
;
6017 /* Create a new spec processing context, and build the function
6021 if (do_spec_2 (args
) < 0)
6022 fatal ("error in args to spec function '%s'", func
);
6024 /* argbuf_index is an index for the next argument to be inserted, and
6025 so contains the count of the args already inserted. */
6027 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
6029 /* Pop the spec processing context. */
6030 argbuf_index
= save_argbuf_index
;
6031 argbuf_length
= save_argbuf_length
;
6033 argbuf
= save_argbuf
;
6035 arg_going
= save_arg_going
;
6036 delete_this_arg
= save_delete_this_arg
;
6037 this_is_output_file
= save_this_is_output_file
;
6038 this_is_library_file
= save_this_is_library_file
;
6039 this_is_linker_script
= save_this_is_linker_script
;
6040 input_from_pipe
= save_input_from_pipe
;
6041 suffix_subst
= save_suffix_subst
;
6046 /* Handle a spec function call of the form:
6050 ARGS is processed as a spec in a separate context and split into an
6051 argument vector in the normal fashion. The function returns a string
6052 containing a spec which we then process in the caller's context, or
6053 NULL if no processing is required. */
6056 handle_spec_function (const char *p
)
6059 const char *endp
, *funcval
;
6062 processing_spec_function
++;
6064 /* Get the function name. */
6065 for (endp
= p
; *endp
!= '\0'; endp
++)
6067 if (*endp
== '(') /* ) */
6069 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6070 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6071 fatal ("malformed spec function name");
6073 if (*endp
!= '(') /* ) */
6074 fatal ("no arguments for spec function");
6075 func
= save_string (p
, endp
- p
);
6078 /* Get the arguments. */
6079 for (count
= 0; *endp
!= '\0'; endp
++)
6088 else if (*endp
== '(') /* ) */
6093 fatal ("malformed spec function arguments");
6094 args
= save_string (p
, endp
- p
);
6097 /* p now points to just past the end of the spec function expression. */
6099 funcval
= eval_spec_function (func
, args
);
6100 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6106 processing_spec_function
--;
6111 /* Inline subroutine of handle_braces. Returns true if the current
6112 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6114 input_suffix_matches (const char *atom
, const char *end_atom
)
6116 return (input_suffix
6117 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6118 && input_suffix
[end_atom
- atom
] == '\0');
6121 /* Subroutine of handle_braces. Returns true if the current
6122 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6124 input_spec_matches (const char *atom
, const char *end_atom
)
6126 return (input_file_compiler
6127 && input_file_compiler
->suffix
6128 && input_file_compiler
->suffix
[0] != '\0'
6129 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6131 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6134 /* Subroutine of handle_braces. Returns true if a switch
6135 matching the atom bracketed by ATOM and END_ATOM appeared on the
6138 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6141 int len
= end_atom
- atom
;
6142 int plen
= starred
? len
: -1;
6144 for (i
= 0; i
< n_switches
; i
++)
6145 if (!strncmp (switches
[i
].part1
, atom
, len
)
6146 && (starred
|| switches
[i
].part1
[len
] == '\0')
6147 && check_live_switch (i
, plen
))
6153 /* Inline subroutine of handle_braces. Mark all of the switches which
6154 match ATOM (extends to END_ATOM; STARRED indicates whether there
6155 was a star after the atom) for later processing. */
6157 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6160 int len
= end_atom
- atom
;
6161 int plen
= starred
? len
: -1;
6163 for (i
= 0; i
< n_switches
; i
++)
6164 if (!strncmp (switches
[i
].part1
, atom
, len
)
6165 && (starred
|| switches
[i
].part1
[len
] == '\0')
6166 && check_live_switch (i
, plen
))
6167 switches
[i
].ordering
= 1;
6170 /* Inline subroutine of handle_braces. Process all the currently
6171 marked switches through give_switch, and clear the marks. */
6173 process_marked_switches (void)
6177 for (i
= 0; i
< n_switches
; i
++)
6178 if (switches
[i
].ordering
== 1)
6180 switches
[i
].ordering
= 0;
6185 /* Handle a %{ ... } construct. P points just inside the leading {.
6186 Returns a pointer one past the end of the brace block, or 0
6187 if we call do_spec_1 and that returns -1. */
6190 handle_braces (const char *p
)
6192 const char *atom
, *end_atom
;
6193 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6194 const char *orig
= p
;
6202 bool a_must_be_last
= false;
6203 bool ordered_set
= false;
6204 bool disjunct_set
= false;
6205 bool disj_matched
= false;
6206 bool disj_starred
= true;
6207 bool n_way_choice
= false;
6208 bool n_way_matched
= false;
6210 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6217 /* Scan one "atom" (S in the description above of %{}, possibly
6218 with '!', '.', '@', ',', or '*' modifiers). */
6220 a_is_suffix
= false;
6221 a_is_starred
= false;
6222 a_is_negated
= false;
6223 a_is_spectype
= false;
6227 p
++, a_is_negated
= true;
6231 p
++, a_is_suffix
= true;
6233 p
++, a_is_spectype
= true;
6236 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6237 || *p
== ',' || *p
== '.' || *p
== '@')
6242 p
++, a_is_starred
= 1;
6248 /* Substitute the switch(es) indicated by the current atom. */
6250 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6251 || a_is_spectype
|| atom
== end_atom
)
6254 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6257 process_marked_switches ();
6261 /* Substitute some text if the current atom appears as a switch
6263 disjunct_set
= true;
6267 if (atom
== end_atom
)
6269 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6270 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6274 /* An empty term may appear as the last choice of an
6275 N-way choice set; it means "otherwise". */
6276 a_must_be_last
= true;
6277 disj_matched
= !n_way_matched
;
6278 disj_starred
= false;
6282 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6286 disj_starred
= false;
6288 /* Don't bother testing this atom if we already have a
6290 if (!disj_matched
&& !n_way_matched
)
6293 a_matched
= input_suffix_matches (atom
, end_atom
);
6294 else if (a_is_spectype
)
6295 a_matched
= input_spec_matches (atom
, end_atom
);
6297 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6299 if (a_matched
!= a_is_negated
)
6301 disj_matched
= true;
6303 d_end_atom
= end_atom
;
6310 /* Found the body, that is, the text to substitute if the
6311 current disjunction matches. */
6312 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6313 disj_matched
&& !n_way_matched
);
6317 /* If we have an N-way choice, reset state for the next
6321 n_way_choice
= true;
6322 n_way_matched
|= disj_matched
;
6323 disj_matched
= false;
6324 disj_starred
= true;
6325 d_atom
= d_end_atom
= NULL
;
6334 while (*p
++ != '}');
6339 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6344 /* Subroutine of handle_braces. Scan and process a brace substitution body
6345 (X in the description of %{} syntax). P points one past the colon;
6346 ATOM and END_ATOM bracket the first atom which was found to be true
6347 (present) in the current disjunction; STARRED indicates whether all
6348 the atoms in the current disjunction were starred (for syntax validation);
6349 MATCHED indicates whether the disjunction matched or not, and therefore
6350 whether or not the body is to be processed through do_spec_1 or just
6351 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6355 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6356 int starred
, int matched
)
6358 const char *body
, *end_body
;
6359 unsigned int nesting_level
;
6360 bool have_subst
= false;
6362 /* Locate the closing } or ;, honoring nested braces.
6363 Trim trailing whitespace. */
6372 if (!--nesting_level
)
6375 else if (*p
== ';' && nesting_level
== 1)
6377 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6379 else if (*p
== '\0')
6385 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6388 if (have_subst
&& !starred
)
6393 /* Copy the substitution body to permanent storage and execute it.
6394 If have_subst is false, this is a simple matter of running the
6395 body through do_spec_1... */
6396 char *string
= save_string (body
, end_body
- body
);
6399 if (do_spec_1 (string
, 0, NULL
) < 0)
6404 /* ... but if have_subst is true, we have to process the
6405 body once for each matching switch, with %* set to the
6406 variant part of the switch. */
6407 unsigned int hard_match_len
= end_atom
- atom
;
6410 for (i
= 0; i
< n_switches
; i
++)
6411 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6412 && check_live_switch (i
, hard_match_len
))
6414 if (do_spec_1 (string
, 0,
6415 &switches
[i
].part1
[hard_match_len
]) < 0)
6417 /* Pass any arguments this switch has. */
6419 suffix_subst
= NULL
;
6427 fatal ("braced spec body '%s' is invalid", body
);
6430 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6431 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6432 spec, or -1 if either exact match or %* is used.
6434 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6435 whose value does not begin with "no-" is obsoleted by the same value
6436 with the "no-", similarly for a switch with the "no-" prefix. */
6439 check_live_switch (int switchnum
, int prefix_length
)
6441 const char *name
= switches
[switchnum
].part1
;
6444 /* If we already processed this switch and determined if it was
6445 live or not, return our past determination. */
6446 if (switches
[switchnum
].live_cond
!= 0)
6447 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6448 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6449 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE
) == 0);
6451 /* In the common case of {<at-most-one-letter>*}, a negating
6452 switch would always match, so ignore that case. We will just
6453 send the conflicting switches to the compiler phase. */
6454 if (prefix_length
>= 0 && prefix_length
<= 1)
6457 /* Now search for duplicate in a manner that depends on the name. */
6461 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6462 if (switches
[i
].part1
[0] == 'O')
6464 switches
[switchnum
].validated
= 1;
6465 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6470 case 'W': case 'f': case 'm':
6471 if (! strncmp (name
+ 1, "no-", 3))
6473 /* We have Xno-YYY, search for XYYY. */
6474 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6475 if (switches
[i
].part1
[0] == name
[0]
6476 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6478 switches
[switchnum
].validated
= 1;
6479 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6485 /* We have XYYY, search for Xno-YYY. */
6486 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6487 if (switches
[i
].part1
[0] == name
[0]
6488 && switches
[i
].part1
[1] == 'n'
6489 && switches
[i
].part1
[2] == 'o'
6490 && switches
[i
].part1
[3] == '-'
6491 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6493 switches
[switchnum
].validated
= 1;
6494 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6501 /* Otherwise the switch is live. */
6502 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6506 /* Pass a switch to the current accumulating command
6507 in the same form that we received it.
6508 SWITCHNUM identifies the switch; it is an index into
6509 the vector of switches gcc received, which is `switches'.
6510 This cannot fail since it never finishes a command line.
6512 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6515 give_switch (int switchnum
, int omit_first_word
)
6517 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6520 if (!omit_first_word
)
6522 do_spec_1 ("-", 0, NULL
);
6523 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6526 if (switches
[switchnum
].args
!= 0)
6529 for (p
= switches
[switchnum
].args
; *p
; p
++)
6531 const char *arg
= *p
;
6533 do_spec_1 (" ", 0, NULL
);
6536 unsigned length
= strlen (arg
);
6539 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6540 if (arg
[length
] == '.')
6542 (CONST_CAST(char *, arg
))[length
] = 0;
6546 do_spec_1 (arg
, 1, NULL
);
6548 (CONST_CAST(char *, arg
))[length
] = '.';
6549 do_spec_1 (suffix_subst
, 1, NULL
);
6552 do_spec_1 (arg
, 1, NULL
);
6556 do_spec_1 (" ", 0, NULL
);
6557 switches
[switchnum
].validated
= 1;
6560 /* Search for a file named NAME trying various prefixes including the
6561 user's -B prefix and some standard ones.
6562 Return the absolute file name found. If nothing is found, return NAME. */
6565 find_file (const char *name
)
6567 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6568 return newname
? newname
: name
;
6571 /* Determine whether a directory exists. If LINKER, return 0 for
6572 certain fixed names not needed by the linker. */
6575 is_directory (const char *path1
, bool linker
)
6582 /* Ensure the string ends with "/.". The resulting path will be a
6583 directory even if the given path is a symbolic link. */
6584 len1
= strlen (path1
);
6585 path
= (char *) alloca (3 + len1
);
6586 memcpy (path
, path1
, len1
);
6588 if (!IS_DIR_SEPARATOR (cp
[-1]))
6589 *cp
++ = DIR_SEPARATOR
;
6593 /* Exclude directories that the linker is known to search. */
6595 && IS_DIR_SEPARATOR (path
[0])
6597 && strncmp (path
+ 1, "lib", 3) == 0)
6599 && strncmp (path
+ 1, "usr", 3) == 0
6600 && IS_DIR_SEPARATOR (path
[4])
6601 && strncmp (path
+ 5, "lib", 3) == 0)))
6604 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6607 /* Set up the various global variables to indicate that we're processing
6608 the input file named FILENAME. */
6611 set_input (const char *filename
)
6615 input_filename
= filename
;
6616 input_filename_length
= strlen (input_filename
);
6617 input_basename
= lbasename (input_filename
);
6619 /* Find a suffix starting with the last period,
6620 and set basename_length to exclude that suffix. */
6621 basename_length
= strlen (input_basename
);
6622 suffixed_basename_length
= basename_length
;
6623 p
= input_basename
+ basename_length
;
6624 while (p
!= input_basename
&& *p
!= '.')
6626 if (*p
== '.' && p
!= input_basename
)
6628 basename_length
= p
- input_basename
;
6629 input_suffix
= p
+ 1;
6634 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6635 we will need to do a stat on the input_filename. The
6636 INPUT_STAT_SET signals that the stat is needed. */
6640 /* On fatal signals, delete all the temporary files. */
6643 fatal_error (int signum
)
6645 signal (signum
, SIG_DFL
);
6646 delete_failure_queue ();
6647 delete_temp_files ();
6648 /* Get the same signal again, this time not handled,
6649 so its normal effect occurs. */
6650 kill (getpid (), signum
);
6653 /* Compare the contents of the two files named CMPFILE[0] and
6654 CMPFILE[1]. Return zero if they're identical, nonzero
6658 compare_files (char *cmpfile
[])
6661 FILE *temp
[2] = { NULL
, NULL
};
6667 void *map
[2] = { NULL
, NULL
};
6669 for (i
= 0; i
< 2; i
++)
6673 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6675 error ("%s: could not determine length of compare-debug file %s",
6676 input_filename
, cmpfile
[i
]);
6681 length
[i
] = st
.st_size
;
6684 if (!ret
&& length
[0] != length
[1])
6686 error ("%s: -fcompare-debug failure (length)", input_filename
);
6691 for (i
= 0; i
< 2; i
++)
6693 int fd
= open (cmpfile
[i
], O_RDONLY
);
6696 error ("%s: could not open compare-debug file %s",
6697 input_filename
, cmpfile
[i
]);
6702 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6705 if (map
[i
] == (void *) MAP_FAILED
)
6714 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6716 error ("%s: -fcompare-debug failure", input_filename
);
6721 for (i
= 0; i
< 2; i
++)
6723 munmap ((caddr_t
) map
[i
], length
[i
]);
6732 for (i
= 0; i
< 2; i
++)
6734 temp
[i
] = fopen (cmpfile
[i
], "r");
6737 error ("%s: could not open compare-debug file %s",
6738 input_filename
, cmpfile
[i
]);
6744 if (!ret
&& temp
[0] && temp
[1])
6748 c0
= fgetc (temp
[0]);
6749 c1
= fgetc (temp
[1]);
6753 error ("%s: -fcompare-debug failure",
6763 for (i
= 1; i
>= 0; i
--)
6772 extern int main (int, char **);
6775 main (int argc
, char **argv
)
6779 int linker_was_run
= 0;
6780 int lang_n_infiles
= 0;
6781 int num_linker_inputs
= 0;
6782 char *explicit_link_files
;
6785 struct user_specs
*uptr
;
6786 char **old_argv
= argv
;
6788 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6789 on ?: in file-scope variable initializations. */
6790 asm_debug
= ASM_DEBUG_SPEC
;
6792 p
= argv
[0] + strlen (argv
[0]);
6793 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6797 xmalloc_set_program_name (programname
);
6799 expandargv (&argc
, &argv
);
6801 /* Determine if any expansions were made. */
6802 if (argv
!= old_argv
)
6803 at_file_supplied
= true;
6805 prune_options (&argc
, &argv
);
6807 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6808 /* Perform host dependent initialization when needed. */
6809 GCC_DRIVER_HOST_INITIALIZATION
;
6812 /* Unlock the stdio streams. */
6813 unlock_std_streams ();
6815 gcc_init_libintl ();
6817 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6818 signal (SIGINT
, fatal_error
);
6820 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6821 signal (SIGHUP
, fatal_error
);
6823 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6824 signal (SIGTERM
, fatal_error
);
6826 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6827 signal (SIGPIPE
, fatal_error
);
6830 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6831 receive the signal. A different setting is inheritable */
6832 signal (SIGCHLD
, SIG_DFL
);
6835 /* Allocate the argument vector. */
6838 obstack_init (&obstack
);
6840 /* Build multilib_select, et. al from the separate lines that make up each
6841 multilib selection. */
6843 const char *const *q
= multilib_raw
;
6846 obstack_init (&multilib_obstack
);
6847 while ((p
= *q
++) != (char *) 0)
6848 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6850 obstack_1grow (&multilib_obstack
, 0);
6851 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6853 q
= multilib_matches_raw
;
6854 while ((p
= *q
++) != (char *) 0)
6855 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6857 obstack_1grow (&multilib_obstack
, 0);
6858 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6860 q
= multilib_exclusions_raw
;
6861 while ((p
= *q
++) != (char *) 0)
6862 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6864 obstack_1grow (&multilib_obstack
, 0);
6865 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6868 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6871 obstack_1grow (&multilib_obstack
, ' ');
6872 obstack_grow (&multilib_obstack
,
6873 multilib_defaults_raw
[i
],
6874 strlen (multilib_defaults_raw
[i
]));
6878 obstack_1grow (&multilib_obstack
, 0);
6879 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6882 #ifdef INIT_ENVIRONMENT
6883 /* Set up any other necessary machine specific environment variables. */
6884 xputenv (INIT_ENVIRONMENT
);
6887 /* Make a table of what switches there are (switches, n_switches).
6888 Make a table of specified input files (infiles, n_infiles).
6889 Decode switches that are handled locally. */
6891 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6893 /* Initialize the vector of specs to just the default.
6894 This means one element containing 0s, as a terminator. */
6896 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6897 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6898 n_compilers
= n_default_compilers
;
6900 /* Read specs from a file if there is one. */
6902 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6903 spec_version
, dir_separator_str
, NULL
);
6904 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6906 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6907 /* Read the specs file unless it is a default one. */
6908 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6909 read_specs (specs_file
, TRUE
);
6913 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6914 for any override of as, ld and libraries. */
6915 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6916 + strlen (just_machine_suffix
) + sizeof ("specs"));
6918 strcpy (specs_file
, standard_exec_prefix
);
6919 strcat (specs_file
, just_machine_suffix
);
6920 strcat (specs_file
, "specs");
6921 if (access (specs_file
, R_OK
) == 0)
6922 read_specs (specs_file
, TRUE
);
6924 /* Process any configure-time defaults specified for the command line
6925 options, via OPTION_DEFAULT_SPECS. */
6926 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6927 do_option_spec (option_default_specs
[i
].name
,
6928 option_default_specs
[i
].spec
);
6930 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6931 of the command line. */
6933 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6934 do_self_spec (driver_self_specs
[i
]);
6938 enum save_temps save
;
6940 if (!compare_debug_second
)
6942 n_switches_debug_check
[1] = n_switches
;
6943 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6946 do_self_spec ("%:compare-debug-self-opt()");
6947 n_switches_debug_check
[0] = n_switches
;
6948 switches_debug_check
[0] = switches
;
6950 n_switches
= n_switches_debug_check
[1];
6951 switches
= switches_debug_check
[1];
6954 /* Avoid crash when computing %j in this early. */
6955 save
= save_temps_flag
;
6956 save_temps_flag
= SAVE_TEMPS_NONE
;
6958 compare_debug
= -compare_debug
;
6959 do_self_spec ("%:compare-debug-self-opt()");
6961 save_temps_flag
= save
;
6963 if (!compare_debug_second
)
6965 n_switches_debug_check
[1] = n_switches
;
6966 switches_debug_check
[1] = switches
;
6967 compare_debug
= -compare_debug
;
6968 n_switches
= n_switches_debug_check
[0];
6969 switches
= switches_debug_check
[0];
6973 /* If not cross-compiling, look for executables in the standard
6975 if (*cross_compile
== '0')
6977 if (*md_exec_prefix
)
6979 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6980 PREFIX_PRIORITY_LAST
, 0, 0);
6984 /* Process sysroot_suffix_spec. */
6985 if (*sysroot_suffix_spec
!= 0
6986 && do_spec_2 (sysroot_suffix_spec
) == 0)
6988 if (argbuf_index
> 1)
6989 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6990 else if (argbuf_index
== 1)
6991 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6994 #ifdef HAVE_LD_SYSROOT
6995 /* Pass the --sysroot option to the linker, if it supports that. If
6996 there is a sysroot_suffix_spec, it has already been processed by
6997 this point, so target_system_root really is the system root we
6999 if (target_system_root
)
7001 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
7002 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
7003 set_spec ("link", XOBFINISH (&obstack
, const char *));
7007 /* Process sysroot_hdrs_suffix_spec. */
7008 if (*sysroot_hdrs_suffix_spec
!= 0
7009 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
7011 if (argbuf_index
> 1)
7012 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
7013 else if (argbuf_index
== 1)
7014 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
7017 /* Look for startfiles in the standard places. */
7018 if (*startfile_prefix_spec
!= 0
7019 && do_spec_2 (startfile_prefix_spec
) == 0
7020 && do_spec_1 (" ", 0, NULL
) == 0)
7023 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
7024 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
7025 PREFIX_PRIORITY_LAST
, 0, 1);
7027 /* We should eventually get rid of all these and stick to
7028 startfile_prefix_spec exclusively. */
7029 else if (*cross_compile
== '0' || target_system_root
)
7031 if (*md_startfile_prefix
)
7032 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7033 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7035 if (*md_startfile_prefix_1
)
7036 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7037 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7039 /* If standard_startfile_prefix is relative, base it on
7040 standard_exec_prefix. This lets us move the installed tree
7041 as a unit. If GCC_EXEC_PREFIX is defined, base
7042 standard_startfile_prefix on that as well.
7044 If the prefix is relative, only search it for native compilers;
7045 otherwise we will search a directory containing host libraries. */
7046 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7047 add_sysrooted_prefix (&startfile_prefixes
,
7048 standard_startfile_prefix
, "BINUTILS",
7049 PREFIX_PRIORITY_LAST
, 0, 1);
7050 else if (*cross_compile
== '0')
7052 add_prefix (&startfile_prefixes
,
7053 concat (gcc_exec_prefix
7054 ? gcc_exec_prefix
: standard_exec_prefix
,
7056 standard_startfile_prefix
, NULL
),
7057 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7060 /* Sysrooted prefixes are relocated because target_system_root is
7061 also relocated by gcc_exec_prefix. */
7062 if (*standard_startfile_prefix_1
)
7063 add_sysrooted_prefix (&startfile_prefixes
,
7064 standard_startfile_prefix_1
, "BINUTILS",
7065 PREFIX_PRIORITY_LAST
, 0, 1);
7066 if (*standard_startfile_prefix_2
)
7067 add_sysrooted_prefix (&startfile_prefixes
,
7068 standard_startfile_prefix_2
, "BINUTILS",
7069 PREFIX_PRIORITY_LAST
, 0, 1);
7072 /* Process any user specified specs in the order given on the command
7074 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7076 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7078 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7081 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7082 if (gcc_exec_prefix
)
7083 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7084 spec_version
, dir_separator_str
, NULL
);
7086 /* Now we have the specs.
7087 Set the `valid' bits for switches that match anything in any spec. */
7089 validate_all_switches ();
7091 /* Now that we have the switches and the specs, set
7092 the subdirectory based on the options. */
7093 set_multilib_dir ();
7095 /* Set up to remember the pathname of gcc and any options
7096 needed for collect. We use argv[0] instead of programname because
7097 we need the complete pathname. */
7098 obstack_init (&collect_obstack
);
7099 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7100 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
7101 xputenv (XOBFINISH (&collect_obstack
, char *));
7103 /* Set up to remember the pathname of the lto wrapper. */
7105 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
7106 if (lto_wrapper_spec
)
7108 obstack_init (&collect_obstack
);
7109 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7110 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7111 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7112 strlen (lto_wrapper_spec
) + 1);
7113 xputenv (XOBFINISH (&collect_obstack
, char *));
7116 /* Warn about any switches that no pass was interested in. */
7118 for (i
= 0; (int) i
< n_switches
; i
++)
7119 if (! switches
[i
].validated
)
7120 error ("unrecognized option '-%s'", switches
[i
].part1
);
7122 /* Obey some of the options. */
7124 if (print_search_dirs
)
7126 printf (_("install: %s%s\n"),
7127 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7128 gcc_exec_prefix
? "" : machine_suffix
);
7129 printf (_("programs: %s\n"),
7130 build_search_list (&exec_prefixes
, "", false, false));
7131 printf (_("libraries: %s\n"),
7132 build_search_list (&startfile_prefixes
, "", false, true));
7136 if (print_file_name
)
7138 printf ("%s\n", find_file (print_file_name
));
7142 if (print_prog_name
)
7144 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7145 printf ("%s\n", (newname
? newname
: print_prog_name
));
7149 if (print_multi_lib
)
7151 print_multilib_info ();
7155 if (print_multi_directory
)
7157 if (multilib_dir
== NULL
)
7160 printf ("%s\n", multilib_dir
);
7166 if (target_system_root
)
7168 if (target_sysroot_suffix
)
7169 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7171 printf ("%s\n", target_system_root
);
7176 if (print_multi_os_directory
)
7178 if (multilib_os_dir
== NULL
)
7181 printf ("%s\n", multilib_os_dir
);
7185 if (print_sysroot_headers_suffix
)
7187 if (*sysroot_hdrs_suffix_spec
)
7189 printf("%s\n", (target_sysroot_hdrs_suffix
7190 ? target_sysroot_hdrs_suffix
7195 /* The error status indicates that only one set of fixed
7196 headers should be built. */
7197 fatal ("not configured with sysroot headers suffix");
7200 if (print_help_list
)
7206 printf (_("\nFor bug reporting instructions, please see:\n"));
7207 printf ("%s.\n", bug_report_url
);
7212 /* We do not exit here. Instead we have created a fake input file
7213 called 'help-dummy' which needs to be compiled, and we pass this
7214 on the various sub-processes, along with the --help switch.
7215 Ensure their output appears after ours. */
7216 fputc ('\n', stdout
);
7222 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
7224 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7226 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7227 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7232 /* We do not exit here. We use the same mechanism of --help to print
7233 the version of the sub-processes. */
7234 fputc ('\n', stdout
);
7243 notice ("Target: %s\n", spec_machine
);
7244 notice ("Configured with: %s\n", configuration_arguments
);
7246 #ifdef THREAD_MODEL_SPEC
7247 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7248 but there's no point in doing all this processing just to get
7249 thread_model back. */
7250 obstack_init (&obstack
);
7251 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7252 obstack_1grow (&obstack
, '\0');
7253 thrmod
= XOBFINISH (&obstack
, const char *);
7255 thrmod
= thread_model
;
7258 notice ("Thread model: %s\n", thrmod
);
7260 /* compiler_version is truncated at the first space when initialized
7261 from version string, so truncate version_string at the first space
7262 before comparing. */
7263 for (n
= 0; version_string
[n
]; n
++)
7264 if (version_string
[n
] == ' ')
7267 if (! strncmp (version_string
, compiler_version
, n
)
7268 && compiler_version
[n
] == 0)
7269 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
7271 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7272 version_string
, pkgversion_string
, compiler_version
);
7278 if (n_infiles
== added_libraries
)
7279 fatal ("no input files");
7281 /* Make a place to record the compiler output file names
7282 that correspond to the input files. */
7285 i
+= lang_specific_extra_outfiles
;
7286 outfiles
= XCNEWVEC (const char *, i
);
7288 /* Record which files were specified explicitly as link input. */
7290 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7293 combine_inputs
= true;
7295 combine_inputs
= false;
7297 for (i
= 0; (int) i
< n_infiles
; i
++)
7299 const char *name
= infiles
[i
].name
;
7300 struct compiler
*compiler
= lookup_compiler (name
,
7302 infiles
[i
].language
);
7304 if (compiler
&& !(compiler
->combinable
))
7305 combine_inputs
= false;
7307 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7308 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7309 infiles
[i
].incompiler
= compiler
;
7313 input_file_compiler
= compiler
;
7314 infiles
[i
].incompiler
= compiler
;
7318 /* Since there is no compiler for this input file, assume it is a
7320 explicit_link_files
[i
] = 1;
7321 infiles
[i
].incompiler
= NULL
;
7323 infiles
[i
].compiled
= false;
7324 infiles
[i
].preprocessed
= false;
7327 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7328 fatal ("cannot specify -o with -c, -S or -E with multiple files");
7330 if (combine_flag
&& save_temps_flag
)
7332 bool save_combine_inputs
= combine_inputs
;
7333 /* Must do a separate pre-processing pass for C & Objective-C files, to
7334 obtain individual .i files. */
7336 combine_inputs
= false;
7337 for (i
= 0; (int) i
< n_infiles
; i
++)
7339 int this_file_error
= 0;
7341 input_file_number
= i
;
7342 set_input (infiles
[i
].name
);
7343 if (infiles
[i
].incompiler
7344 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7345 input_file_compiler
= infiles
[i
].incompiler
;
7349 if (input_file_compiler
)
7351 if (input_file_compiler
->spec
[0] == '#')
7353 error ("%s: %s compiler not installed on this system",
7354 input_filename
, &input_file_compiler
->spec
[1]);
7355 this_file_error
= 1;
7359 value
= do_spec (input_file_compiler
->spec
);
7360 infiles
[i
].preprocessed
= true;
7361 if (!have_o_argbuf_index
)
7362 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
7363 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7364 infiles
[i
].incompiler
7365 = lookup_compiler (infiles
[i
].name
,
7366 strlen (infiles
[i
].name
),
7367 infiles
[i
].language
);
7370 this_file_error
= 1;
7374 if (this_file_error
)
7376 delete_failure_queue ();
7380 clear_failure_queue ();
7382 combine_inputs
= save_combine_inputs
;
7385 for (i
= 0; (int) i
< n_infiles
; i
++)
7387 int this_file_error
= 0;
7389 /* Tell do_spec what to substitute for %i. */
7391 input_file_number
= i
;
7392 set_input (infiles
[i
].name
);
7394 if (infiles
[i
].compiled
)
7397 /* Use the same thing in %o, unless cp->spec says otherwise. */
7399 outfiles
[i
] = input_filename
;
7401 /* Figure out which compiler from the file's suffix. */
7403 if (! combine_inputs
)
7405 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7406 infiles
[i
].language
);
7408 input_file_compiler
= infiles
[i
].incompiler
;
7410 if (input_file_compiler
)
7412 /* Ok, we found an applicable compiler. Run its spec. */
7414 if (input_file_compiler
->spec
[0] == '#')
7416 error ("%s: %s compiler not installed on this system",
7417 input_filename
, &input_file_compiler
->spec
[1]);
7418 this_file_error
= 1;
7424 if (debug_check_temp_file
[0])
7425 free (debug_check_temp_file
[0]);
7426 debug_check_temp_file
[0] = NULL
;
7428 if (debug_check_temp_file
[1])
7429 free (debug_check_temp_file
[1]);
7430 debug_check_temp_file
[1] = NULL
;
7433 value
= do_spec (input_file_compiler
->spec
);
7434 infiles
[i
].compiled
= true;
7436 this_file_error
= 1;
7437 else if (compare_debug
&& debug_check_temp_file
[0])
7440 error ("Recompiling with -fcompare-debug");
7442 compare_debug
= -compare_debug
;
7443 n_switches
= n_switches_debug_check
[1];
7444 switches
= switches_debug_check
[1];
7446 value
= do_spec (input_file_compiler
->spec
);
7448 compare_debug
= -compare_debug
;
7449 n_switches
= n_switches_debug_check
[0];
7450 switches
= switches_debug_check
[0];
7454 error ("during -fcompare-debug recompilation");
7455 this_file_error
= 1;
7458 gcc_assert (debug_check_temp_file
[1]
7459 && strcmp (debug_check_temp_file
[0],
7460 debug_check_temp_file
[1]));
7463 error ("Comparing final insns dumps");
7465 if (compare_files (debug_check_temp_file
))
7466 this_file_error
= 1;
7471 if (debug_check_temp_file
[0])
7472 free (debug_check_temp_file
[0]);
7473 debug_check_temp_file
[0] = NULL
;
7475 if (debug_check_temp_file
[1])
7476 free (debug_check_temp_file
[1]);
7477 debug_check_temp_file
[1] = NULL
;
7482 /* If this file's name does not contain a recognized suffix,
7483 record it as explicit linker input. */
7486 explicit_link_files
[i
] = 1;
7488 /* Clear the delete-on-failure queue, deleting the files in it
7489 if this compilation failed. */
7491 if (this_file_error
)
7493 delete_failure_queue ();
7496 /* If this compilation succeeded, don't delete those files later. */
7497 clear_failure_queue ();
7500 /* Reset the input file name to the first compile/object file name, for use
7501 with %b in LINK_SPEC. We use the first input file that we can find
7502 a compiler to compile it instead of using infiles.language since for
7503 languages other than C we use aliases that we then lookup later. */
7508 for (i
= 0; i
< n_infiles
; i
++)
7509 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7511 set_input (infiles
[i
].name
);
7516 if (error_count
== 0)
7518 /* Make sure INPUT_FILE_NUMBER points to first available open
7520 input_file_number
= n_infiles
;
7521 if (lang_specific_pre_link ())
7525 /* Determine if there are any linker input files. */
7526 num_linker_inputs
= 0;
7527 for (i
= 0; (int) i
< n_infiles
; i
++)
7528 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7529 num_linker_inputs
++;
7531 /* Run ld to link all the compiler output files. */
7533 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
7535 int tmp
= execution_count
;
7536 const char *fuse_linker_plugin
= "fuse-linker-plugin";
7538 /* We'll use ld if we can't find collect2. */
7539 if (! strcmp (linker_name_spec
, "collect2"))
7541 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7543 linker_name_spec
= "ld";
7546 if (switch_matches (fuse_linker_plugin
,
7547 fuse_linker_plugin
+ strlen (fuse_linker_plugin
), 0))
7549 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7550 "liblto_plugin.so", X_OK
,
7552 if (!linker_plugin_file_spec
)
7553 fatal ("-fuse-linker-plugin, but liblto_plugin.so not found");
7555 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7557 if (!lto_libgcc_spec
)
7558 fatal ("could not find libgcc.a");
7560 lto_gcc_spec
= argv
[0];
7562 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7564 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7565 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7567 if (print_subprocess_help
== 1)
7569 printf (_("\nLinker options\n==============\n\n"));
7570 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7571 " to the linker.\n\n"));
7574 value
= do_spec (link_command_spec
);
7577 linker_was_run
= (tmp
!= execution_count
);
7580 /* If options said don't run linker,
7581 complain about input files to be given to the linker. */
7583 if (! linker_was_run
&& error_count
== 0)
7584 for (i
= 0; (int) i
< n_infiles
; i
++)
7585 if (explicit_link_files
[i
]
7586 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7587 error ("%s: linker input file unused because linking not done",
7590 /* Delete some or all of the temporary files we made. */
7593 delete_failure_queue ();
7594 delete_temp_files ();
7596 if (print_help_list
)
7598 printf (("\nFor bug reporting instructions, please see:\n"));
7599 printf ("%s\n", bug_report_url
);
7602 return (signal_count
!= 0 ? 2
7603 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
7607 /* Find the proper compilation spec for the file name NAME,
7608 whose length is LENGTH. LANGUAGE is the specified language,
7609 or 0 if this file is to be passed to the linker. */
7611 static struct compiler
*
7612 lookup_compiler (const char *name
, size_t length
, const char *language
)
7614 struct compiler
*cp
;
7616 /* If this was specified by the user to be a linker input, indicate that. */
7617 if (language
!= 0 && language
[0] == '*')
7620 /* Otherwise, look for the language, if one is spec'd. */
7623 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7624 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7627 error ("language %s not recognized", language
);
7631 /* Look for a suffix. */
7632 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7634 if (/* The suffix `-' matches only the file name `-'. */
7635 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7636 || (strlen (cp
->suffix
) < length
7637 /* See if the suffix matches the end of NAME. */
7638 && !strcmp (cp
->suffix
,
7639 name
+ length
- strlen (cp
->suffix
))
7644 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7645 /* Look again, but case-insensitively this time. */
7647 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7649 if (/* The suffix `-' matches only the file name `-'. */
7650 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7651 || (strlen (cp
->suffix
) < length
7652 /* See if the suffix matches the end of NAME. */
7653 && ((!strcmp (cp
->suffix
,
7654 name
+ length
- strlen (cp
->suffix
))
7655 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7656 && !strcasecmp (cp
->suffix
,
7657 name
+ length
- strlen (cp
->suffix
)))
7663 if (cp
>= compilers
)
7665 if (cp
->spec
[0] != '@')
7666 /* A non-alias entry: return it. */
7669 /* An alias entry maps a suffix to a language.
7670 Search for the language; pass 0 for NAME and LENGTH
7671 to avoid infinite recursion if language not found. */
7672 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7678 save_string (const char *s
, int len
)
7680 char *result
= XNEWVEC (char, len
+ 1);
7682 memcpy (result
, s
, len
);
7688 pfatal_with_name (const char *name
)
7690 perror_with_name (name
);
7691 delete_temp_files ();
7696 perror_with_name (const char *name
)
7698 error ("%s: %s", name
, xstrerror (errno
));
7701 /* Output an error message and exit. */
7704 fancy_abort (const char *file
, int line
, const char *func
)
7706 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7709 /* Output an error message and exit. */
7712 fatal_ice (const char *cmsgid
, ...)
7716 va_start (ap
, cmsgid
);
7718 fprintf (stderr
, "%s: ", programname
);
7719 vfprintf (stderr
, _(cmsgid
), ap
);
7721 fprintf (stderr
, "\n");
7722 delete_temp_files ();
7723 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7727 fatal (const char *cmsgid
, ...)
7731 va_start (ap
, cmsgid
);
7733 fprintf (stderr
, "%s: ", programname
);
7734 vfprintf (stderr
, _(cmsgid
), ap
);
7736 fprintf (stderr
, "\n");
7737 delete_temp_files ();
7741 /* The argument is actually c-format, not gcc-internal-format,
7742 but because functions with identical names are used through
7743 the rest of the compiler with gcc-internal-format, we just
7744 need to hope all users of these functions use the common
7745 subset between c-format and gcc-internal-format. */
7748 error (const char *gmsgid
, ...)
7752 va_start (ap
, gmsgid
);
7753 fprintf (stderr
, "%s: ", programname
);
7754 vfprintf (stderr
, _(gmsgid
), ap
);
7757 fprintf (stderr
, "\n");
7761 notice (const char *cmsgid
, ...)
7765 va_start (ap
, cmsgid
);
7766 vfprintf (stderr
, _(cmsgid
), ap
);
7771 validate_switches_from_spec (const char *spec
)
7773 const char *p
= spec
;
7776 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7777 /* We have a switch spec. */
7778 p
= validate_switches (p
+ 1);
7782 validate_all_switches (void)
7784 struct compiler
*comp
;
7785 struct spec_list
*spec
;
7787 for (comp
= compilers
; comp
->spec
; comp
++)
7788 validate_switches_from_spec (comp
->spec
);
7790 /* Look through the linked list of specs read from the specs file. */
7791 for (spec
= specs
; spec
; spec
= spec
->next
)
7792 validate_switches_from_spec (*spec
->ptr_spec
);
7794 validate_switches_from_spec (link_command_spec
);
7797 /* Look at the switch-name that comes after START
7798 and mark as valid all supplied switches that match it. */
7801 validate_switches (const char *start
)
7803 const char *p
= start
;
7807 bool suffix
= false;
7808 bool starred
= false;
7810 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7819 if (*p
== '.' || *p
== ',')
7823 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7824 || *p
== ',' || *p
== '.' || *p
== '@')
7829 starred
= true, p
++;
7835 /* Mark all matching switches as valid. */
7836 for (i
= 0; i
< n_switches
; i
++)
7837 if (!strncmp (switches
[i
].part1
, atom
, len
)
7838 && (starred
|| switches
[i
].part1
[len
] == 0))
7839 switches
[i
].validated
= 1;
7843 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7846 if (*p
&& p
[-1] == ':')
7848 while (*p
&& *p
!= ';' && *p
!= '}')
7853 if (*p
== '{' || *p
== '<')
7854 p
= validate_switches (p
+1);
7855 else if (p
[0] == 'W' && p
[1] == '{')
7856 p
= validate_switches (p
+2);
7863 if (*p
&& p
[-1] == ';')
7877 static struct mdswitchstr
*mdswitches
;
7878 static int n_mdswitches
;
7880 /* Check whether a particular argument was used. The first time we
7881 canonicalize the switches to keep only the ones we care about. */
7884 used_arg (const char *p
, int len
)
7889 const char *replace
;
7894 static struct mswitchstr
*mswitches
;
7895 static int n_mswitches
;
7900 struct mswitchstr
*matches
;
7904 /* Break multilib_matches into the component strings of string
7905 and replacement string. */
7906 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7911 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7913 q
= multilib_matches
;
7922 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7926 matches
[i
].len
= q
- matches
[i
].str
;
7928 matches
[i
].replace
= ++q
;
7929 while (*q
!= ';' && *q
!= '\0')
7932 goto invalid_matches
;
7935 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7941 /* Now build a list of the replacement string for switches that we care
7942 about. Make sure we allocate at least one entry. This prevents
7943 xmalloc from calling fatal, and prevents us from re-executing this
7946 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7947 for (i
= 0; i
< n_switches
; i
++)
7948 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7950 int xlen
= strlen (switches
[i
].part1
);
7951 for (j
= 0; j
< cnt
; j
++)
7952 if (xlen
== matches
[j
].len
7953 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7955 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7956 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7957 mswitches
[n_mswitches
].replace
= (char *) 0;
7958 mswitches
[n_mswitches
].rep_len
= 0;
7964 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7965 on the command line nor any options mutually incompatible with
7967 for (i
= 0; i
< n_mdswitches
; i
++)
7971 for (q
= multilib_options
; *q
!= '\0'; q
++)
7977 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7978 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7980 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7987 if (*q
!= ' ' && *q
!= '\0')
7989 while (*r
!= ' ' && *r
!= '\0')
7992 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7995 if (used_arg (r
, q
- r
))
8000 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
8001 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
8002 mswitches
[n_mswitches
].replace
= (char *) 0;
8003 mswitches
[n_mswitches
].rep_len
= 0;
8016 for (i
= 0; i
< n_mswitches
; i
++)
8017 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8024 default_arg (const char *p
, int len
)
8028 for (i
= 0; i
< n_mdswitches
; i
++)
8029 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8035 /* Work out the subdirectory to use based on the options. The format of
8036 multilib_select is a list of elements. Each element is a subdirectory
8037 name followed by a list of options followed by a semicolon. The format
8038 of multilib_exclusions is the same, but without the preceding
8039 directory. First gcc will check the exclusions, if none of the options
8040 beginning with an exclamation point are present, and all of the other
8041 options are present, then we will ignore this completely. Passing
8042 that, gcc will consider each multilib_select in turn using the same
8043 rules for matching the options. If a match is found, that subdirectory
8047 set_multilib_dir (void)
8050 unsigned int this_path_len
;
8051 const char *this_path
, *this_arg
;
8052 const char *start
, *end
;
8054 int ok
, ndfltok
, first
;
8057 start
= multilib_defaults
;
8058 while (*start
== ' ' || *start
== '\t')
8060 while (*start
!= '\0')
8063 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8065 while (*start
== ' ' || *start
== '\t')
8073 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8074 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8076 while (*start
== ' ' || *start
== '\t')
8082 for (end
= start
+ 1;
8083 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8086 obstack_grow (&multilib_obstack
, start
, end
- start
);
8087 obstack_1grow (&multilib_obstack
, 0);
8088 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8089 mdswitches
[i
++].len
= end
- start
;
8096 p
= multilib_exclusions
;
8099 /* Ignore newlines. */
8106 /* Check the arguments. */
8113 fatal ("multilib exclusions '%s' is invalid",
8114 multilib_exclusions
);
8124 while (*p
!= ' ' && *p
!= ';')
8127 goto invalid_exclusions
;
8131 if (*this_arg
!= '!')
8139 ok
= used_arg (this_arg
, p
- this_arg
);
8154 p
= multilib_select
;
8157 /* Ignore newlines. */
8164 /* Get the initial path. */
8171 fatal ("multilib select '%s' is invalid",
8176 this_path_len
= p
- this_path
;
8178 /* Check the arguments. */
8185 goto invalid_select
;
8194 while (*p
!= ' ' && *p
!= ';')
8197 goto invalid_select
;
8201 if (*this_arg
!= '!')
8209 /* If this is a default argument, we can just ignore it.
8210 This is true even if this_arg begins with '!'. Beginning
8211 with '!' does not mean that this argument is necessarily
8212 inappropriate for this library: it merely means that
8213 there is a more specific library which uses this
8214 argument. If this argument is a default, we need not
8215 consider that more specific library. */
8216 ok
= used_arg (this_arg
, p
- this_arg
);
8223 if (default_arg (this_arg
, p
- this_arg
))
8232 if (this_path_len
!= 1
8233 || this_path
[0] != '.')
8235 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8238 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8239 new_multilib_dir
[this_path_len
] = '\0';
8240 q
= strchr (new_multilib_dir
, ':');
8243 multilib_dir
= new_multilib_dir
;
8250 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8252 while (q
< end
&& *q
!= ':')
8256 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8257 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8258 new_multilib_os_dir
[end
- q
- 1] = '\0';
8259 multilib_os_dir
= new_multilib_os_dir
;
8267 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8268 && strcmp (multilib_os_dir
, ".") == 0)
8270 free (CONST_CAST (char *, multilib_os_dir
));
8271 multilib_os_dir
= NULL
;
8273 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8274 multilib_os_dir
= multilib_dir
;
8277 /* Print out the multiple library subdirectory selection
8278 information. This prints out a series of lines. Each line looks
8279 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8280 required. Only the desired options are printed out, the negative
8281 matches. The options are print without a leading dash. There are
8282 no spaces to make it easy to use the information in the shell.
8283 Each subdirectory is printed only once. This assumes the ordering
8284 generated by the genmultilib script. Also, we leave out ones that match
8288 print_multilib_info (void)
8290 const char *p
= multilib_select
;
8291 const char *last_path
= 0, *this_path
;
8293 unsigned int last_path_len
= 0;
8298 /* Ignore newlines. */
8305 /* Get the initial path. */
8312 fatal ("multilib select '%s' is invalid", multilib_select
);
8318 /* When --disable-multilib was used but target defines
8319 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8320 to find multilib_os_dir, so skip them from output. */
8321 if (this_path
[0] == '.' && this_path
[1] == ':')
8324 /* Check for matches with the multilib_exclusions. We don't bother
8325 with the '!' in either list. If any of the exclusion rules match
8326 all of its options with the select rule, we skip it. */
8328 const char *e
= multilib_exclusions
;
8329 const char *this_arg
;
8334 /* Ignore newlines. */
8341 /* Check the arguments. */
8350 fatal ("multilib exclusion '%s' is invalid",
8351 multilib_exclusions
);
8362 while (*e
!= ' ' && *e
!= ';')
8365 goto invalid_exclusion
;
8373 int len
= e
- this_arg
;
8376 goto invalid_select
;
8380 while (*q
!= ' ' && *q
!= ';')
8383 goto invalid_select
;
8387 if (! strncmp (arg
, this_arg
,
8388 (len
< q
- arg
) ? q
- arg
: len
)
8389 || default_arg (this_arg
, e
- this_arg
))
8419 /* If this is a duplicate, skip it. */
8420 skip
= (last_path
!= 0
8421 && (unsigned int) (p
- this_path
) == last_path_len
8422 && ! strncmp (last_path
, this_path
, last_path_len
));
8424 last_path
= this_path
;
8425 last_path_len
= p
- this_path
;
8428 /* If this directory requires any default arguments, we can skip
8429 it. We will already have printed a directory identical to
8430 this one which does not require that default argument. */
8441 goto invalid_select
;
8448 while (*q
!= ' ' && *q
!= ';')
8451 goto invalid_select
;
8456 && default_arg (arg
, q
- arg
))
8471 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8482 goto invalid_select
;
8490 use_arg
= *p
!= '!';
8495 while (*p
!= ' ' && *p
!= ';')
8498 goto invalid_select
;
8510 /* If there are extra options, print them now. */
8511 if (multilib_extra
&& *multilib_extra
)
8513 int print_at
= TRUE
;
8516 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8537 /* getenv built-in spec function.
8539 Returns the value of the environment variable given by its first
8540 argument, concatenated with the second argument. If the
8541 environment variable is not defined, a fatal error is issued. */
8544 getenv_spec_function (int argc
, const char **argv
)
8554 value
= getenv (argv
[0]);
8556 fatal ("environment variable \"%s\" not defined", argv
[0]);
8558 /* We have to escape every character of the environment variable so
8559 they are not interpreted as active spec characters. A
8560 particularly painful case is when we are reading a variable
8561 holding a windows path complete with \ separators. */
8562 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8563 result
= XNEWVAR (char, len
);
8564 for (ptr
= result
; *value
; ptr
+= 2)
8570 strcpy (ptr
, argv
[1]);
8575 /* if-exists built-in spec function.
8577 Checks to see if the file specified by the absolute pathname in
8578 ARGS exists. Returns that pathname if found.
8580 The usual use for this function is to check for a library file
8581 (whose name has been expanded with %s). */
8584 if_exists_spec_function (int argc
, const char **argv
)
8586 /* Must have only one argument. */
8587 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8593 /* if-exists-else built-in spec function.
8595 This is like if-exists, but takes an additional argument which
8596 is returned if the first argument does not exist. */
8599 if_exists_else_spec_function (int argc
, const char **argv
)
8601 /* Must have exactly two arguments. */
8605 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8611 /* replace-outfile built-in spec function.
8613 This looks for the first argument in the outfiles array's name and
8614 replaces it with the second argument. */
8617 replace_outfile_spec_function (int argc
, const char **argv
)
8620 /* Must have exactly two arguments. */
8624 for (i
= 0; i
< n_infiles
; i
++)
8626 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8627 outfiles
[i
] = xstrdup (argv
[1]);
8632 /* Given two version numbers, compares the two numbers.
8633 A version number must match the regular expression
8634 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8637 compare_version_strings (const char *v1
, const char *v2
)
8642 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8643 REG_EXTENDED
| REG_NOSUB
) != 0)
8645 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8646 if (rresult
== REG_NOMATCH
)
8647 fatal ("invalid version number `%s'", v1
);
8648 else if (rresult
!= 0)
8650 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8651 if (rresult
== REG_NOMATCH
)
8652 fatal ("invalid version number `%s'", v2
);
8653 else if (rresult
!= 0)
8656 return strverscmp (v1
, v2
);
8660 /* version_compare built-in spec function.
8662 This takes an argument of the following form:
8664 <comparison-op> <arg1> [<arg2>] <switch> <result>
8666 and produces "result" if the comparison evaluates to true,
8667 and nothing if it doesn't.
8669 The supported <comparison-op> values are:
8671 >= true if switch is a later (or same) version than arg1
8673 < true if switch is an earlier version than arg1
8675 >< true if switch is arg1 or later, and earlier than arg2
8676 <> true if switch is earlier than arg1 or is arg2 or later
8678 If the switch is not present, the condition is false unless
8679 the first character of the <comparison-op> is '!'.
8682 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8683 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8686 version_compare_spec_function (int argc
, const char **argv
)
8690 const char *switch_value
= NULL
;
8695 fatal ("too few arguments to %%:version-compare");
8696 if (argv
[0][0] == '\0')
8698 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8700 if (argc
!= nargs
+ 3)
8701 fatal ("too many arguments to %%:version-compare");
8703 switch_len
= strlen (argv
[nargs
+ 1]);
8704 for (i
= 0; i
< n_switches
; i
++)
8705 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8706 && check_live_switch (i
, switch_len
))
8707 switch_value
= switches
[i
].part1
+ switch_len
;
8709 if (switch_value
== NULL
)
8713 comp1
= compare_version_strings (switch_value
, argv
[1]);
8715 comp2
= compare_version_strings (switch_value
, argv
[2]);
8717 comp2
= -1; /* This value unused. */
8720 switch (argv
[0][0] << 8 | argv
[0][1])
8722 case '>' << 8 | '=':
8723 result
= comp1
>= 0;
8725 case '!' << 8 | '<':
8726 result
= comp1
>= 0 || switch_value
== NULL
;
8731 case '!' << 8 | '>':
8732 result
= comp1
< 0 || switch_value
== NULL
;
8734 case '>' << 8 | '<':
8735 result
= comp1
>= 0 && comp2
< 0;
8737 case '<' << 8 | '>':
8738 result
= comp1
< 0 || comp2
>= 0;
8742 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8747 return argv
[nargs
+ 2];
8750 /* %:include builtin spec function. This differs from %include in that it
8751 can be nested inside a spec, and thus be conditionalized. It takes
8752 one argument, the filename, and looks for it in the startfile path.
8753 The result is always NULL, i.e. an empty expansion. */
8756 include_spec_function (int argc
, const char **argv
)
8763 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8764 read_specs (file
? file
: argv
[0], FALSE
);
8769 /* %:print-asm-header spec function. Print a banner to say that the
8770 following output is from the assembler. */
8773 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8774 const char **argv ATTRIBUTE_UNUSED
)
8776 printf (_("Assembler options\n=================\n\n"));
8777 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8782 /* Compute a timestamp to initialize flag_random_seed. */
8785 get_local_tick (void)
8789 /* Get some more or less random data. */
8790 #ifdef HAVE_GETTIMEOFDAY
8794 gettimeofday (&tv
, NULL
);
8795 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8799 time_t now
= time (NULL
);
8801 if (now
!= (time_t)-1)
8802 ret
= (unsigned) now
;
8809 /* %:compare-debug-dump-opt spec function. Save the last argument,
8810 expected to be the last -fdump-final-insns option, or generate a
8814 compare_debug_dump_opt_spec_function (int arg
,
8815 const char **argv ATTRIBUTE_UNUSED
)
8820 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8823 fatal ("too many arguments to %%:compare-debug-dump-opt");
8825 do_spec_2 ("%{fdump-final-insns=*:%*}");
8826 do_spec_1 (" ", 0, NULL
);
8828 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8833 name
= xstrdup (argv
[argbuf_index
- 1]);
8838 const char *ext
= NULL
;
8840 if (argbuf_index
> 0)
8842 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8845 else if (!compare_debug
)
8848 do_spec_2 ("%g.gkd");
8850 do_spec_1 (" ", 0, NULL
);
8852 gcc_assert (argbuf_index
> 0);
8854 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8856 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8859 which
= compare_debug
< 0;
8860 debug_check_temp_file
[which
] = name
;
8864 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8866 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8870 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8879 static const char *debug_auxbase_opt
;
8881 /* %:compare-debug-self-opt spec function. Expands to the options
8882 that are to be passed in the second compilation of
8886 compare_debug_self_opt_spec_function (int arg
,
8887 const char **argv ATTRIBUTE_UNUSED
)
8890 fatal ("too many arguments to %%:compare-debug-self-opt");
8892 if (compare_debug
>= 0)
8895 do_spec_2 ("%{c|S:%{o*:%*}}");
8896 do_spec_1 (" ", 0, NULL
);
8898 if (argbuf_index
> 0)
8899 debug_auxbase_opt
= concat ("-auxbase-strip ",
8900 argbuf
[argbuf_index
- 1],
8903 debug_auxbase_opt
= NULL
;
8906 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8907 %<fdump-final-insns=* -w -S -o %j \
8908 %{!fcompare-debug-second:-fcompare-debug-second} \
8909 ", compare_debug_opt
, NULL
);
8912 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8913 options that are to be passed in the second compilation of
8914 compare-debug. It expects, as an argument, the basename of the
8915 current input file name, with the .gk suffix appended to it. */
8918 compare_debug_auxbase_opt_spec_function (int arg
,
8925 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8928 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8930 if (compare_debug
>= 0)
8933 len
= strlen (argv
[0]);
8934 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8935 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8937 if (debug_auxbase_opt
)
8938 return debug_auxbase_opt
;
8940 #define OPT "-auxbase "
8943 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8944 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8945 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8946 name
[sizeof (OPT
) - 1 + len
] = '\0';