1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* This program is the user interface to the C compiler and possibly to
23 other compilers. It is used because compilation is a complicated procedure
24 which involves running several programs and passing temporary files between
25 them, forwarding the users switches to those programs selectively,
26 and deleting the temporary files at the end.
28 CC recognizes how to compile each input file by suffixes in the file names.
29 Once it knows which kind of compilation to perform, the procedure for
30 compilation is specified by a string called a "spec". */
32 /* A Short Introduction to Adding a Command-Line Option.
34 Before adding a command-line option, consider if it is really
35 necessary. Each additional command-line option adds complexity and
36 is difficult to remove in subsequent versions.
38 In the following, consider adding the command-line argument
41 1. Each command-line option is specified in the specs file. The
42 notation is described below in the comment entitled "The Specs
45 2. In this file, add an entry to "option_map" equating the long
46 `--' argument version and any shorter, single letter version. Read
47 the comments in the declaration of "struct option_map" for an
48 explanation. Do not omit the first `-'.
50 3. Look in the "specs" file to determine which program or option
51 list should be given the argument, e.g., "cc1_options". Add the
52 appropriate syntax for the shorter option version to the
53 corresponding "const char *" entry in this file. Omit the first
54 `-' from the option. For example, use `-bar', rather than `--bar'.
56 4. If the argument takes an argument, e.g., `--baz argument1',
57 modify either DEFAULT_SWITCH_TAKES_ARG or
58 DEFAULT_WORD_SWITCH_TAKES_ARG in gcc.h. Omit the first `-'
61 5. Document the option in this file's display_help(). If the
62 option is passed to a subprogram, modify its corresponding
63 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
66 6. Compile and test. Make sure that your new specs file is being
67 read. For example, use a debugger to investigate the value of
68 "specs_file" in main(). */
72 #include "coretypes.h"
73 #include "multilib.h" /* before tm.h */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
88 # include <sys/mman.h>
90 /* This is on Solaris. */
91 # include <sys/types.h>
96 # define MAP_FAILED ((void *)-1)
99 /* By default there is no special suffix for target executables. */
100 /* FIXME: when autoconf is fixed, remove the host check - dj */
101 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
102 #define HAVE_TARGET_EXECUTABLE_SUFFIX
105 /* By default there is no special suffix for host executables. */
106 #ifdef HOST_EXECUTABLE_SUFFIX
107 #define HAVE_HOST_EXECUTABLE_SUFFIX
109 #define HOST_EXECUTABLE_SUFFIX ""
112 /* By default, the suffix for target object files is ".o". */
113 #ifdef TARGET_OBJECT_SUFFIX
114 #define HAVE_TARGET_OBJECT_SUFFIX
116 #define TARGET_OBJECT_SUFFIX ".o"
119 static const char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
121 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
122 #ifndef LIBRARY_PATH_ENV
123 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
127 #define kill(p,s) raise(s)
130 /* If a stage of compilation returns an exit status >= 1,
131 compilation of that file ceases. */
133 #define MIN_FATAL_STATUS 1
135 /* Flag set by cppspec.c to 1. */
138 /* Flag set to nonzero if an @file argument has been supplied to gcc. */
139 static bool at_file_supplied
;
141 /* Flag saying to pass the greatest exit code returned by a sub-process
142 to the calling program. */
143 static int pass_exit_codes
;
145 /* Definition of string containing the arguments given to configure. */
146 #include "configargs.h"
148 /* Flag saying to print the directories gcc will search through looking for
149 programs, libraries, etc. */
151 static int print_search_dirs
;
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static const char *print_file_name
= NULL
;
158 /* As print_file_name, but search for executable file. */
160 static const char *print_prog_name
= NULL
;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory
;
167 static int print_sysroot
;
169 /* Flag saying to print the relative path we'd use to
170 find OS libraries given the current compiler flags. */
172 static int print_multi_os_directory
;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib
;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list
;
184 /* Flag saying to print the version of gcc and its sub-processes. */
186 static int print_version
;
188 /* Flag saying to print the sysroot suffix used for searching for
191 static int print_sysroot_headers_suffix
;
193 /* Flag indicating whether we should print the command and arguments */
195 static int verbose_flag
;
197 /* Flag indicating whether we should ONLY print the command and
198 arguments (like verbose_flag) without executing the command.
199 Displayed arguments are quoted so that the generated command
200 line is suitable for execution. This is intended for use in
201 shell scripts to capture the driver-generated command line. */
202 static int verbose_only_flag
;
204 /* Flag indicating how to print command line options of sub-processes. */
206 static int print_subprocess_help
;
208 /* Flag indicating whether we should report subprocess execution times
209 (if this is supported by the system - see pexecute.c). */
211 static int report_times
;
213 /* Whether we should report subprocess execution times to a file. */
215 FILE *report_times_to_file
= NULL
;
217 /* Nonzero means place this string before uses of /, so that include
218 and library files can be found in an alternate location. */
220 #ifdef TARGET_SYSTEM_ROOT
221 static const char *target_system_root
= TARGET_SYSTEM_ROOT
;
223 static const char *target_system_root
= 0;
226 /* Nonzero means pass the updated target_system_root to the compiler. */
228 static int target_system_root_changed
;
230 /* Nonzero means append this string to target_system_root. */
232 static const char *target_sysroot_suffix
= 0;
234 /* Nonzero means append this string to target_system_root for headers. */
236 static const char *target_sysroot_hdrs_suffix
= 0;
238 /* Nonzero means write "temp" files in source directory
239 and use the source file's name in them, and don't delete them. */
241 static enum save_temps
{
242 SAVE_TEMPS_NONE
, /* no -save-temps */
243 SAVE_TEMPS_CWD
, /* -save-temps in current directory */
244 SAVE_TEMPS_OBJ
/* -save-temps in object directory */
247 /* Output file to use to get the object directory for -save-temps=obj */
248 static char *save_temps_prefix
= 0;
249 static size_t save_temps_length
= 0;
251 /* Nonzero means pass multiple source files to the compiler at one time. */
253 static int combine_flag
= 0;
255 /* Nonzero means use pipes to communicate between subprocesses.
256 Overridden by either of the above two flags. */
258 static int use_pipes
;
260 /* The compiler version. */
262 static const char *compiler_version
;
264 /* The target version specified with -V */
266 static const char *const spec_version
= DEFAULT_TARGET_VERSION
;
268 /* The target machine specified with -b. */
270 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
272 /* Nonzero if cross-compiling.
273 When -b is used, the value comes from the `specs' file. */
275 #ifdef CROSS_DIRECTORY_STRUCTURE
276 static const char *cross_compile
= "1";
278 static const char *cross_compile
= "0";
281 #ifdef MODIFY_TARGET_NAME
283 /* Information on how to alter the target name based on a command-line
284 switch. The only case we support now is simply appending or deleting a
285 string to or from the end of the first part of the configuration name. */
287 enum add_del
{ADD
, DELETE
};
289 static const struct modify_target
291 const char *const sw
;
292 const enum add_del add_del
;
293 const char *const str
;
295 modify_target
[] = MODIFY_TARGET_NAME
;
298 /* The number of errors that have occurred; the link phase will not be
299 run if this is nonzero. */
300 static int error_count
= 0;
302 /* Greatest exit code of sub-processes that has been encountered up to
304 static int greatest_status
= 1;
306 /* This is the obstack which we use to allocate many strings. */
308 static struct obstack obstack
;
310 /* This is the obstack to build an environment variable to pass to
311 collect2 that describes all of the relevant switches of what to
312 pass the compiler in building the list of pointers to constructors
315 static struct obstack collect_obstack
;
317 /* This is a list of a wrapper program and its arguments.
318 e.g. wrapper_string of "strace,-c"
319 will cause all programs to run as
320 strace -c program arguments
323 static const char *wrapper_string
;
325 /* Forward declaration for prototypes. */
329 static void init_spec (void);
330 static void store_arg (const char *, int, int);
331 static void insert_wrapper (const char *);
332 static char *load_specs (const char *);
333 static void read_specs (const char *, int);
334 static void set_spec (const char *, const char *);
335 static struct compiler
*lookup_compiler (const char *, size_t, const char *);
336 static char *build_search_list (const struct path_prefix
*, const char *,
338 static void xputenv (const char *);
339 static void putenv_from_prefixes (const struct path_prefix
*, const char *,
341 static int access_check (const char *, int);
342 static char *find_a_file (const struct path_prefix
*, const char *, int, bool);
343 static void add_prefix (struct path_prefix
*, const char *, const char *,
345 static void add_sysrooted_prefix (struct path_prefix
*, const char *,
346 const char *, int, int, int);
347 static void translate_options (int *, const char *const **);
348 static char *skip_whitespace (char *);
349 static void delete_if_ordinary (const char *);
350 static void delete_temp_files (void);
351 static void delete_failure_queue (void);
352 static void clear_failure_queue (void);
353 static int check_live_switch (int, int);
354 static const char *handle_braces (const char *);
355 static inline bool input_suffix_matches (const char *, const char *);
356 static inline bool switch_matches (const char *, const char *, int);
357 static inline void mark_matching_switches (const char *, const char *, int);
358 static inline void process_marked_switches (void);
359 static const char *process_brace_body (const char *, const char *, const char *, int, int);
360 static const struct spec_function
*lookup_spec_function (const char *);
361 static const char *eval_spec_function (const char *, const char *);
362 static const char *handle_spec_function (const char *);
363 static char *save_string (const char *, int);
364 static void set_collect_gcc_options (void);
365 static int do_spec_1 (const char *, int, const char *);
366 static int do_spec_2 (const char *);
367 static void do_option_spec (const char *, const char *);
368 static void do_self_spec (const char *);
369 static const char *find_file (const char *);
370 static int is_directory (const char *, bool);
371 static const char *validate_switches (const char *);
372 static void validate_all_switches (void);
373 static inline void validate_switches_from_spec (const char *);
374 static void give_switch (int, int);
375 static int used_arg (const char *, int);
376 static int default_arg (const char *, int);
377 static void set_multilib_dir (void);
378 static void print_multilib_info (void);
379 static void perror_with_name (const char *);
380 static void fatal_ice (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN
;
381 static void notice (const char *, ...) ATTRIBUTE_PRINTF_1
;
382 static void display_help (void);
383 static void add_preprocessor_option (const char *, int);
384 static void add_assembler_option (const char *, int);
385 static void add_linker_option (const char *, int);
386 static void process_command (int, const char **);
387 static int execute (void);
388 static void alloc_args (void);
389 static void clear_args (void);
390 static void fatal_error (int);
391 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
392 static void init_gcc_specs (struct obstack
*, const char *, const char *,
395 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
396 static const char *convert_filename (const char *, int, int);
399 static const char *getenv_spec_function (int, const char **);
400 static const char *if_exists_spec_function (int, const char **);
401 static const char *if_exists_else_spec_function (int, const char **);
402 static const char *replace_outfile_spec_function (int, const char **);
403 static const char *version_compare_spec_function (int, const char **);
404 static const char *include_spec_function (int, const char **);
405 static const char *print_asm_header_spec_function (int, const char **);
406 static const char *compare_debug_dump_opt_spec_function (int, const char **);
407 static const char *compare_debug_self_opt_spec_function (int, const char **);
408 static const char *compare_debug_auxbase_opt_spec_function (int, const char **);
410 /* The Specs Language
412 Specs are strings containing lines, each of which (if not blank)
413 is made up of a program name, and arguments separated by spaces.
414 The program name must be exact and start from root, since no path
415 is searched and it is unreliable to depend on the current working directory.
416 Redirection of input or output is not supported; the subprograms must
417 accept filenames saying what files to read and write.
419 In addition, the specs can contain %-sequences to substitute variable text
420 or for conditional text. Here is a table of all defined %-sequences.
421 Note that spaces are not generated automatically around the results of
422 expanding these sequences; therefore, you can concatenate them together
423 or with constant text in a single argument.
425 %% substitute one % into the program name or argument.
426 %i substitute the name of the input file being processed.
427 %b substitute the basename of the input file being processed.
428 This is the substring up to (and not including) the last period
429 and not including the directory unless -save-temps was specified
430 to put temporaries in a different location.
431 %B same as %b, but include the file suffix (text after the last period).
433 substitute a file name that has suffix SUFFIX and is chosen
434 once per compilation, and mark the argument a la %d. To reduce
435 exposure to denial-of-service attacks, the file name is now
436 chosen in a way that is hard to predict even when previously
437 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
438 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
439 the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
440 had been pre-processed. Previously, %g was simply substituted
441 with a file name chosen once per compilation, without regard
442 to any appended suffix (which was therefore treated just like
443 ordinary text), making such attacks more likely to succeed.
445 like %g, but if -pipe is in effect, expands simply to "-".
447 like %g, but if -pipe is in effect, expands to nothing. (We have both
448 %| and %m to accommodate differences between system assemblers; see
449 the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
451 like %g, but generates a new temporary file name even if %uSUFFIX
454 substitutes the last file name generated with %uSUFFIX, generating a
455 new one if there is no such last file name. In the absence of any
456 %uSUFFIX, this is just like %gSUFFIX, except they don't share
457 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
458 would involve the generation of two distinct file names, one
459 for each `%g.s' and another for each `%U.s'. Previously, %U was
460 simply substituted with a file name chosen for the previous %u,
461 without regard to any appended suffix.
463 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
464 writable, and if save-temps is off; otherwise, substitute the name
465 of a temporary file, just like %u. This temporary file is not
466 meant for communication between processes, but rather as a junk
469 substitutes .SUFFIX for the suffixes of a matched switch's args when
470 it is subsequently output with %*. SUFFIX is terminated by the next
472 %d marks the argument containing or following the %d as a
473 temporary file name, so that that file will be deleted if GCC exits
474 successfully. Unlike %g, this contributes no text to the argument.
475 %w marks the argument containing or following the %w as the
476 "output file" of this compilation. This puts the argument
477 into the sequence of arguments that %o will substitute later.
478 %V indicates that this compilation produces no "output file".
480 like %{...} but mark last argument supplied within
481 as a file to be deleted on failure.
482 %o substitutes the names of all the output files, with spaces
483 automatically placed around them. You should write spaces
484 around the %o as well or the results are undefined.
485 %o is for use in the specs for running the linker.
486 Input files whose names have no recognized suffix are not compiled
487 at all, but they are included among the output files, so they will
489 %O substitutes the suffix for object files. Note that this is
490 handled specially when it immediately follows %g, %u, or %U
491 (with or without a suffix argument) because of the need for
492 those to form complete file names. The handling is such that
493 %O is treated exactly as if it had already been substituted,
494 except that %g, %u, and %U do not currently support additional
495 SUFFIX characters following %O as they would following, for
497 %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
498 (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
499 and -B options) and -imultilib as necessary.
500 %s current argument is the name of a library or startup file of some sort.
501 Search for that file in a standard list of directories
502 and substitute the full name found.
503 %eSTR Print STR as an error message. STR is terminated by a newline.
504 Use this when inconsistent options are detected.
505 %nSTR Print STR as a notice. STR is terminated by a newline.
506 %x{OPTION} Accumulate an option for %X.
507 %X Output the accumulated linker options specified by compilations.
508 %Y Output the accumulated assembler options specified by compilations.
509 %Z Output the accumulated preprocessor options specified by compilations.
510 %a process ASM_SPEC as a spec.
511 This allows config.h to specify part of the spec for running as.
512 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
513 used here. This can be used to run a post-processor after the
514 assembler has done its job.
515 %D Dump out a -L option for each directory in startfile_prefixes.
516 If multilib_dir is set, extra entries are generated with it affixed.
517 %l process LINK_SPEC as a spec.
518 %L process LIB_SPEC as a spec.
519 %G process LIBGCC_SPEC as a spec.
520 %R Output the concatenation of target_system_root and
521 target_sysroot_suffix.
522 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
523 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
524 %C process CPP_SPEC as a spec.
525 %1 process CC1_SPEC as a spec.
526 %2 process CC1PLUS_SPEC as a spec.
527 %* substitute the variable part of a matched option. (See below.)
528 Note that each comma in the substituted string is replaced by
530 %<S remove all occurrences of -S from the command line.
531 Note - this command is position dependent. % commands in the
532 spec string before this one will see -S, % commands in the
533 spec string after this one will not.
534 %<S* remove all occurrences of all switches beginning with -S from the
537 Call the named function FUNCTION, passing it ARGS. ARGS is
538 first processed as a nested spec string, then split into an
539 argument vector in the usual fashion. The function returns
540 a string which is processed as if it had appeared literally
541 as part of the current spec.
542 %{S} substitutes the -S switch, if that switch was given to GCC.
543 If that switch was not specified, this substitutes nothing.
544 Here S is a metasyntactic variable.
545 %{S*} substitutes all the switches specified to GCC whose names start
546 with -S. This is used for -o, -I, etc; switches that take
547 arguments. GCC considers `-o foo' as being one switch whose
548 name starts with `o'. %{o*} would substitute this text,
549 including the space; thus, two arguments would be generated.
550 %{S*&T*} likewise, but preserve order of S and T options (the order
551 of S and T in the spec is not significant). Can be any number
552 of ampersand-separated variables; for each the wild card is
553 optional. Useful for CPP as %{D*&U*&A*}.
555 %{S:X} substitutes X, if the -S switch was given to GCC.
556 %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
557 %{S*:X} substitutes X if one or more switches whose names start
558 with -S was given to GCC. Normally X is substituted only
559 once, no matter how many such switches appeared. However,
560 if %* appears somewhere in X, then X will be substituted
561 once for each matching switch, with the %* replaced by the
562 part of that switch that matched the '*'.
563 %{.S:X} substitutes X, if processing a file with suffix S.
564 %{!.S:X} substitutes X, if NOT processing a file with suffix S.
565 %{,S:X} substitutes X, if processing a file which will use spec S.
566 %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
568 %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
569 combined with '!', '.', ',', and '*' as above binding stronger
571 If %* appears in X, all of the alternatives must be starred, and
572 only the first matching alternative is substituted.
573 %{S:X; if S was given to GCC, substitutes X;
574 T:Y; else if T was given to GCC, substitutes Y;
575 :D} else substitutes D. There can be as many clauses as you need.
576 This may be combined with '.', '!', ',', '|', and '*' as above.
578 %(Spec) processes a specification defined in a specs file as *Spec:
579 %[Spec] as above, but put __ around -D arguments
581 The conditional text X in a %{S:X} or similar construct may contain
582 other nested % constructs or spaces, or even newlines. They are
583 processed as usual, as described above. Trailing white space in X is
584 ignored. White space may also appear anywhere on the left side of the
585 colon in these constructs, except between . or * and the corresponding
588 The -O, -f, -m, and -W switches are handled specifically in these
589 constructs. If another value of -O or the negated form of a -f, -m, or
590 -W switch is found later in the command line, the earlier switch
591 value is ignored, except with {S*} where S is just one letter; this
592 passes all matching options.
594 The character | at the beginning of the predicate text is used to indicate
595 that a command should be piped to the following command, but only if -pipe
598 Note that it is built into GCC which switches take arguments and which
599 do not. You might think it would be useful to generalize this to
600 allow each compiler's spec to say which switches take arguments. But
601 this cannot be done in a consistent fashion. GCC cannot even decide
602 which input files have been specified without knowing which switches
603 take arguments, and it must know which input files to compile in order
604 to tell which compilers to run.
606 GCC also knows implicitly that arguments starting in `-l' are to be
607 treated as compiler output files, and passed to the linker in their
608 proper position among the other output files. */
610 /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
612 /* config.h can define ASM_SPEC to provide extra args to the assembler
613 or extra switch-translations. */
618 /* config.h can define ASM_FINAL_SPEC to run a post processor after
619 the assembler has run. */
620 #ifndef ASM_FINAL_SPEC
621 #define ASM_FINAL_SPEC ""
624 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
625 or extra switch-translations. */
630 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
631 or extra switch-translations. */
636 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
637 or extra switch-translations. */
639 #define CC1PLUS_SPEC ""
642 /* config.h can define LINK_SPEC to provide extra args to the linker
643 or extra switch-translations. */
648 /* config.h can define LIB_SPEC to override the default libraries. */
650 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
655 /* XXX: valid only for GNU ld */
656 /* XXX: should exactly match hooks provided by libmudflap.a */
657 #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \
658 --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\
659 --wrap=mmap --wrap=munmap --wrap=alloca\
660 } %{fmudflapth: --wrap=pthread_create\
661 }} %{fmudflap|fmudflapth: --wrap=main}"
664 #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}"
667 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
670 #if defined(REAL_LIBGCC_SPEC)
671 #define LIBGCC_SPEC REAL_LIBGCC_SPEC
672 #elif defined(LINK_LIBGCC_SPECIAL_1)
673 /* Have gcc do the search for libgcc.a. */
674 #define LIBGCC_SPEC "libgcc.a%s"
676 #define LIBGCC_SPEC "-lgcc"
680 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
681 #ifndef STARTFILE_SPEC
682 #define STARTFILE_SPEC \
683 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
686 /* config.h can define SWITCHES_NEED_SPACES to control which options
687 require spaces between the option and the argument. */
688 #ifndef SWITCHES_NEED_SPACES
689 #define SWITCHES_NEED_SPACES ""
692 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
694 #define ENDFILE_SPEC ""
698 #define LINKER_NAME "collect2"
701 #ifdef HAVE_AS_DEBUG_PREFIX_MAP
702 #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}"
707 /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
709 #ifndef ASM_DEBUG_SPEC
710 # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \
711 && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
712 # define ASM_DEBUG_SPEC \
713 (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \
714 ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \
715 : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP)
717 # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG)
718 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP
720 # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
721 # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP
725 #ifndef ASM_DEBUG_SPEC
726 # define ASM_DEBUG_SPEC ""
729 /* Here is the spec for running the linker, after compiling all files. */
731 /* This is overridable by the target in case they need to specify the
732 -lgcc and -lc order specially, yet not require them to override all
733 of LINK_COMMAND_SPEC. */
734 #ifndef LINK_GCC_C_SEQUENCE_SPEC
735 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
738 #ifndef LINK_SSP_SPEC
739 #ifdef TARGET_LIBC_PROVIDES_SSP
740 #define LINK_SSP_SPEC "%{fstack-protector:}"
742 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}"
746 #ifndef LINK_PIE_SPEC
748 #define LINK_PIE_SPEC "%{pie:-pie} "
750 #define LINK_PIE_SPEC "%{pie:} "
754 #ifndef LINK_BUILDID_SPEC
755 # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
756 # define LINK_BUILDID_SPEC "%{!r:--build-id} "
761 /* -u* was put back because both BSD and SysV seem to support it. */
762 /* %{static:} simply prevents an error message if the target machine
763 doesn't handle -static. */
764 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
765 scripts which exist in user specified directories, or in standard
767 /* We pass any -flto and -fwhopr flags on to the linker, which is expected
768 to understand them. In practice, this means it had better be collect2. */
769 #ifndef LINK_COMMAND_SPEC
770 #define LINK_COMMAND_SPEC "\
771 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
773 %{use-linker-plugin: \
774 -plugin %(linker_plugin_file) \
775 -plugin-opt=%(lto_wrapper) \
776 -plugin-opt=%(lto_gcc) \
777 %{static|static-libgcc:-plugin-opt=-pass-through=%(lto_libgcc)} \
778 %{static:-plugin-opt=-pass-through=-lc} \
779 %{O*:-plugin-opt=-O%*} \
780 %{w:-plugin-opt=-w} \
781 %{f*:-plugin-opt=-f%*} \
783 %{flto} %{fwhopr} %l " LINK_PIE_SPEC \
784 "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
785 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
786 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
787 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
788 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
789 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
793 #ifndef LINK_LIBGCC_SPEC
794 /* Generate -L options for startfile prefix list. */
795 # define LINK_LIBGCC_SPEC "%D"
798 #ifndef STARTFILE_PREFIX_SPEC
799 # define STARTFILE_PREFIX_SPEC ""
803 # define SYSROOT_SPEC "--sysroot=%R"
806 #ifndef SYSROOT_SUFFIX_SPEC
807 # define SYSROOT_SUFFIX_SPEC ""
810 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
811 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
814 static const char *asm_debug
;
815 static const char *cpp_spec
= CPP_SPEC
;
816 static const char *cc1_spec
= CC1_SPEC
;
817 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
818 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
819 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
820 static const char *asm_spec
= ASM_SPEC
;
821 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
822 static const char *link_spec
= LINK_SPEC
;
823 static const char *lib_spec
= LIB_SPEC
;
824 static const char *mfwrap_spec
= MFWRAP_SPEC
;
825 static const char *mflib_spec
= MFLIB_SPEC
;
826 static const char *link_gomp_spec
= "";
827 static const char *libgcc_spec
= LIBGCC_SPEC
;
828 static const char *endfile_spec
= ENDFILE_SPEC
;
829 static const char *startfile_spec
= STARTFILE_SPEC
;
830 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
831 static const char *linker_name_spec
= LINKER_NAME
;
832 static const char *linker_plugin_file_spec
= "";
833 static const char *lto_wrapper_spec
= "";
834 static const char *lto_gcc_spec
= "";
835 static const char *lto_libgcc_spec
= "";
836 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
837 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
838 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
839 static const char *sysroot_spec
= SYSROOT_SPEC
;
840 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
841 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
843 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
844 There should be no need to override these in target dependent files,
845 but we need to copy them to the specs file so that newer versions
846 of the GCC driver can correctly drive older tool chains with the
847 appropriate -B options. */
849 /* When cpplib handles traditional preprocessing, get rid of this, and
850 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
851 that we default the front end language better. */
852 static const char *trad_capable_cpp
=
853 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
855 /* We don't wrap .d files in %W{} since a missing .d file, and
856 therefore no dependency entry, confuses make into thinking a .o
857 file that happens to exist is up-to-date. */
858 static const char *cpp_unique_options
=
859 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
860 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
861 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
862 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
863 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
864 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
865 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
866 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
867 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
868 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
871 /* This contains cpp options which are common with cc1_options and are passed
872 only when preprocessing only to avoid duplication. We pass the cc1 spec
873 options to the preprocessor so that it the cc1 spec may manipulate
874 options used to set target flags. Those special target flags settings may
875 in turn cause preprocessor symbols to be defined specially. */
876 static const char *cpp_options
=
877 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
878 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
879 %{undef} %{save-temps*:-fpch-preprocess}";
881 /* This contains cpp options which are not passed when the preprocessor
882 output will be used by another program. */
883 static const char *cpp_debug_options
= "%{d*}";
885 /* NB: This is shared amongst all front-ends, except for Ada. */
886 static const char *cc1_options
=
887 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
888 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
889 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
890 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
891 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
892 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
893 %{Qn:-fno-ident} %{--help:--help}\
894 %{--target-help:--target-help}\
895 %{--help=*:--help=%(VALUE)}\
896 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
897 %{fsyntax-only:-o %j} %{-param*}\
898 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
899 %{coverage:-fprofile-arcs -ftest-coverage}";
901 static const char *asm_options
=
902 "%{--target-help:%:print-asm-header()} "
904 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
905 to the assembler equivalents. */
906 "%{v} %{w:-W} %{I*} "
908 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
910 static const char *invoke_as
=
911 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
913 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
914 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
918 %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
919 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
923 /* Some compilers have limits on line lengths, and the multilib_select
924 and/or multilib_matches strings can be very long, so we build them at
926 static struct obstack multilib_obstack
;
927 static const char *multilib_select
;
928 static const char *multilib_matches
;
929 static const char *multilib_defaults
;
930 static const char *multilib_exclusions
;
932 /* Check whether a particular argument is a default argument. */
934 #ifndef MULTILIB_DEFAULTS
935 #define MULTILIB_DEFAULTS { "" }
938 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
940 #ifndef DRIVER_SELF_SPECS
941 #define DRIVER_SELF_SPECS ""
944 /* Adding -fopenmp should imply pthreads. This is particularly important
945 for targets that use different start files and suchlike. */
946 #ifndef GOMP_SELF_SPECS
947 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
950 static const char *const driver_self_specs
[] = {
951 "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
952 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
955 #ifndef OPTION_DEFAULT_SPECS
956 #define OPTION_DEFAULT_SPECS { "", "" }
965 static const struct default_spec
966 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
970 struct user_specs
*next
;
971 const char *filename
;
974 static struct user_specs
*user_specs_head
, *user_specs_tail
;
976 #ifndef SWITCH_TAKES_ARG
977 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
980 #ifndef WORD_SWITCH_TAKES_ARG
981 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
984 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
985 /* This defines which switches stop a full compilation. */
986 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
987 ((CHAR) == 'c' || (CHAR) == 'S')
989 #ifndef SWITCH_CURTAILS_COMPILATION
990 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
991 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
995 /* Record the mapping from file suffixes for compilation specs. */
999 const char *suffix
; /* Use this compiler for input files
1000 whose names end in this suffix. */
1002 const char *spec
; /* To use this compiler, run this spec. */
1004 const char *cpp_spec
; /* If non-NULL, substitute this spec
1005 for `%C', rather than the usual
1007 const int combinable
; /* If nonzero, compiler can deal with
1008 multiple source files at once (IMA). */
1009 const int needs_preprocessing
; /* If nonzero, source files need to
1010 be run through a preprocessor. */
1013 /* Pointer to a vector of `struct compiler' that gives the spec for
1014 compiling a file, based on its suffix.
1015 A file that does not end in any of these suffixes will be passed
1016 unchanged to the loader and nothing else will be done to it.
1018 An entry containing two 0s is used to terminate the vector.
1020 If multiple entries match a file, the last matching one is used. */
1022 static struct compiler
*compilers
;
1024 /* Number of entries in `compilers', not counting the null terminator. */
1026 static int n_compilers
;
1028 /* The default list of file name suffixes and their compilation specs. */
1030 static const struct compiler default_compilers
[] =
1032 /* Add lists of suffixes of known languages here. If those languages
1033 were not present when we built the driver, we will hit these copies
1034 and be given a more meaningful error than "file not used since
1035 linking is not done". */
1036 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1037 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1038 {".mii", "#Objective-C++", 0, 0, 0},
1039 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1040 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1041 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1042 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1043 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1044 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1045 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1046 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1047 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1048 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1049 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1050 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1051 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1052 {".r", "#Ratfor", 0, 0, 0},
1053 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1054 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1055 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1056 /* Next come the entries for C. */
1057 {".c", "@c", 0, 1, 1},
1059 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1060 external preprocessor if -save-temps is given. */
1061 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1063 %{traditional|ftraditional:\
1064 %eGNU C no longer supports -traditional without -E}\
1066 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1067 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1068 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1070 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1071 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1072 %{!fsyntax-only:%(invoke_as)}} \
1074 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1075 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1076 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1077 cc1 %(cpp_unique_options) %(cc1_options)}}\
1078 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1080 "%{!E:%e-E or -x required when input is from standard input}\
1081 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1082 {".h", "@c-header", 0, 0, 0},
1084 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1085 external preprocessor if -save-temps is given. */
1086 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1088 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1089 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1090 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1092 -o %g.s %{!o*:--output-pch=%i.gch}\
1093 %W{o*:--output-pch=%*}%V}\
1094 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1095 cc1 %(cpp_unique_options) %(cc1_options)\
1096 -o %g.s %{!o*:--output-pch=%i.gch}\
1097 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1098 {".i", "@cpp-output", 0, 1, 0},
1100 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1101 {".s", "@assembler", 0, 1, 0},
1103 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1104 {".sx", "@assembler-with-cpp", 0, 1, 0},
1105 {".S", "@assembler-with-cpp", 0, 1, 0},
1106 {"@assembler-with-cpp",
1107 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1108 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1109 %{E|M|MM:%(cpp_debug_options)}\
1110 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1111 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1113 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1114 %{E|M|MM:%(cpp_debug_options)}\
1115 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1116 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1121 /* Mark end of table. */
1125 /* Number of elements in default_compilers, not counting the terminator. */
1127 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1129 /* A vector of options to give to the linker.
1130 These options are accumulated by %x,
1131 and substituted into the linker command with %X. */
1132 static int n_linker_options
;
1133 static char **linker_options
;
1135 /* A vector of options to give to the assembler.
1136 These options are accumulated by -Wa,
1137 and substituted into the assembler command with %Y. */
1138 static int n_assembler_options
;
1139 static char **assembler_options
;
1141 /* A vector of options to give to the preprocessor.
1142 These options are accumulated by -Wp,
1143 and substituted into the preprocessor command with %Z. */
1144 static int n_preprocessor_options
;
1145 static char **preprocessor_options
;
1147 /* Define how to map long options into short ones. */
1149 /* This structure describes one mapping. */
1152 /* The long option's name. */
1153 const char *const name
;
1154 /* The equivalent short option. */
1155 const char *const equivalent
;
1156 /* Argument info. A string of flag chars; NULL equals no options.
1157 a => argument required.
1158 o => argument optional.
1159 j => join argument to equivalent, making one word.
1160 * => require other text after NAME as an argument. */
1161 const char *const arg_info
;
1164 /* This is the table of mappings. Mappings are tried sequentially
1165 for each option encountered; the first one that matches, wins. */
1167 static const struct option_map option_map
[] =
1169 {"--all-warnings", "-Wall", 0},
1170 {"--ansi", "-ansi", 0},
1171 {"--assemble", "-S", 0},
1172 {"--assert", "-A", "a"},
1173 {"--classpath", "-fclasspath=", "aj"},
1174 {"--bootclasspath", "-fbootclasspath=", "aj"},
1175 {"--CLASSPATH", "-fclasspath=", "aj"},
1176 {"--combine", "-combine", 0},
1177 {"--comments", "-C", 0},
1178 {"--comments-in-macros", "-CC", 0},
1179 {"--compile", "-c", 0},
1180 {"--debug", "-g", "oj"},
1181 {"--define-macro", "-D", "aj"},
1182 {"--dependencies", "-M", 0},
1183 {"--dump", "-d", "a"},
1184 {"--dumpbase", "-dumpbase", "a"},
1185 {"--encoding", "-fencoding=", "aj"},
1186 {"--entry", "-e", 0},
1187 {"--extra-warnings", "-W", 0},
1188 {"--extdirs", "-fextdirs=", "aj"},
1189 {"--for-assembler", "-Wa", "a"},
1190 {"--for-linker", "-Xlinker", "a"},
1191 {"--force-link", "-u", "a"},
1192 {"--coverage", "-coverage", 0},
1193 {"--imacros", "-imacros", "a"},
1194 {"--include", "-include", "a"},
1195 {"--include-barrier", "-I-", 0},
1196 {"--include-directory", "-I", "aj"},
1197 {"--include-directory-after", "-idirafter", "a"},
1198 {"--include-prefix", "-iprefix", "a"},
1199 {"--include-with-prefix", "-iwithprefix", "a"},
1200 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1201 {"--include-with-prefix-after", "-iwithprefix", "a"},
1202 {"--language", "-x", "a"},
1203 {"--library-directory", "-L", "a"},
1204 {"--machine", "-m", "aj"},
1205 {"--machine-", "-m", "*j"},
1206 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1207 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1208 {"--no-line-commands", "-P", 0},
1209 {"--no-precompiled-includes", "-noprecomp", 0},
1210 {"--no-standard-includes", "-nostdinc", 0},
1211 {"--no-standard-libraries", "-nostdlib", 0},
1212 {"--no-warnings", "-w", 0},
1213 {"--optimize", "-O", "oj"},
1214 {"--output", "-o", "a"},
1215 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1216 {"--param", "--param", "a"},
1217 {"--pass-exit-codes", "-pass-exit-codes", 0},
1218 {"--pedantic", "-pedantic", 0},
1219 {"--pedantic-errors", "-pedantic-errors", 0},
1220 {"--pie", "-pie", 0},
1221 {"--pipe", "-pipe", 0},
1222 {"--prefix", "-B", "a"},
1223 {"--preprocess", "-E", 0},
1224 {"--print-search-dirs", "-print-search-dirs", 0},
1225 {"--print-file-name", "-print-file-name=", "aj"},
1226 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1227 {"--print-missing-file-dependencies", "-MG", 0},
1228 {"--print-multi-lib", "-print-multi-lib", 0},
1229 {"--print-multi-directory", "-print-multi-directory", 0},
1230 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1231 {"--print-prog-name", "-print-prog-name=", "aj"},
1232 {"--print-sysroot", "-print-sysroot", 0},
1233 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1234 {"--profile", "-p", 0},
1235 {"--profile-blocks", "-a", 0},
1236 {"--quiet", "-q", 0},
1237 {"--resource", "-fcompile-resource=", "aj"},
1238 {"--save-temps", "-save-temps", 0},
1239 {"--shared", "-shared", 0},
1240 {"--silent", "-q", 0},
1241 {"--specs", "-specs=", "aj"},
1242 {"--static", "-static", 0},
1243 {"--std", "-std=", "aj"},
1244 {"--symbolic", "-symbolic", 0},
1245 {"--sysroot", "--sysroot=", "aj"},
1246 {"--time", "-time", 0},
1247 {"--trace-includes", "-H", 0},
1248 {"--traditional", "-traditional", 0},
1249 {"--traditional-cpp", "-traditional-cpp", 0},
1250 {"--trigraphs", "-trigraphs", 0},
1251 {"--undefine-macro", "-U", "aj"},
1252 {"--user-dependencies", "-MM", 0},
1253 {"--verbose", "-v", 0},
1254 {"--warn-", "-W", "*j"},
1255 {"--write-dependencies", "-MD", 0},
1256 {"--write-user-dependencies", "-MMD", 0},
1261 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1262 static const struct {
1263 const char *const option_found
;
1264 const char *const replacements
;
1265 } target_option_translations
[] =
1267 TARGET_OPTION_TRANSLATE_TABLE
,
1272 /* Translate the options described by *ARGCP and *ARGVP.
1273 Make a new vector and store it back in *ARGVP,
1274 and store its length in *ARGCP. */
1277 translate_options (int *argcp
, const char *const **argvp
)
1281 const char *const *argv
= *argvp
;
1282 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1283 const char **newv
= XNEWVAR (const char *, newvsize
);
1287 newv
[newindex
++] = argv
[i
++];
1291 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1295 target_option_translations
[tott_idx
].option_found
;
1298 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1305 for (sp
= target_option_translations
[tott_idx
].replacements
;
1312 newvsize
+= spaces
* sizeof (const char *);
1313 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1315 sp
= target_option_translations
[tott_idx
].replacements
;
1324 newv
[newindex
++] = np
;
1325 while (*np
!= ' ' && *np
)
1336 if (target_option_translations
[tott_idx
].option_found
)
1340 /* Translate -- options. */
1341 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1344 /* Find a mapping that applies to this option. */
1345 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1347 size_t optlen
= strlen (option_map
[j
].name
);
1348 size_t arglen
= strlen (argv
[i
]);
1349 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1350 const char *arginfo
= option_map
[j
].arg_info
;
1355 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1357 const char *arg
= 0;
1359 if (arglen
< optlen
)
1362 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1363 if (strlen (option_map
[k
].name
) >= arglen
1364 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1366 error ("ambiguous abbreviation %s", argv
[i
]);
1370 if (k
!= ARRAY_SIZE (option_map
))
1374 if (arglen
> optlen
)
1376 /* If the option has an argument, accept that. */
1377 if (argv
[i
][optlen
] == '=')
1378 arg
= argv
[i
] + optlen
+ 1;
1380 /* If this mapping requires extra text at end of name,
1381 accept that as "argument". */
1382 else if (strchr (arginfo
, '*') != 0)
1383 arg
= argv
[i
] + optlen
;
1385 /* Otherwise, extra text at end means mismatch.
1386 Try other mappings. */
1391 else if (strchr (arginfo
, '*') != 0)
1393 error ("incomplete '%s' option", option_map
[j
].name
);
1397 /* Handle arguments. */
1398 if (strchr (arginfo
, 'a') != 0)
1404 error ("missing argument to '%s' option",
1405 option_map
[j
].name
);
1412 else if (strchr (arginfo
, '*') != 0)
1414 else if (strchr (arginfo
, 'o') == 0)
1417 error ("extraneous argument to '%s' option",
1418 option_map
[j
].name
);
1422 /* Store the translation as one argv elt or as two. */
1423 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1424 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1428 newv
[newindex
++] = option_map
[j
].equivalent
;
1429 newv
[newindex
++] = arg
;
1432 newv
[newindex
++] = option_map
[j
].equivalent
;
1440 /* Handle old-fashioned options--just copy them through,
1441 with their arguments. */
1442 else if (argv
[i
][0] == '-')
1444 const char *p
= argv
[i
] + 1;
1448 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1449 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1450 else if (WORD_SWITCH_TAKES_ARG (p
))
1451 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1452 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1455 else if (! strcmp (p
, "Xlinker"))
1457 else if (! strcmp (p
, "Xpreprocessor"))
1459 else if (! strcmp (p
, "Xassembler"))
1462 /* Watch out for an option at the end of the command line that
1463 is missing arguments, and avoid skipping past the end of the
1465 if (nskip
+ i
> argc
)
1470 newv
[newindex
++] = argv
[i
++];
1475 /* Ordinary operands, or +e options. */
1476 newv
[newindex
++] = argv
[i
++];
1486 skip_whitespace (char *p
)
1490 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1491 be considered whitespace. */
1492 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1494 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1508 /* Structures to keep track of prefixes to try when looking for files. */
1512 const char *prefix
; /* String to prepend to the path. */
1513 struct prefix_list
*next
; /* Next in linked list. */
1514 int require_machine_suffix
; /* Don't use without machine_suffix. */
1515 /* 2 means try both machine_suffix and just_machine_suffix. */
1516 int priority
; /* Sort key - priority within list. */
1517 int os_multilib
; /* 1 if OS multilib scheme should be used,
1518 0 for GCC multilib scheme. */
1523 struct prefix_list
*plist
; /* List of prefixes to try */
1524 int max_len
; /* Max length of a prefix in PLIST */
1525 const char *name
; /* Name of this list (used in config stuff) */
1528 /* List of prefixes to try when looking for executables. */
1530 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1532 /* List of prefixes to try when looking for startup (crt0) files. */
1534 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1536 /* List of prefixes to try when looking for include files. */
1538 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1540 /* Suffix to attach to directories searched for commands.
1541 This looks like `MACHINE/VERSION/'. */
1543 static const char *machine_suffix
= 0;
1545 /* Suffix to attach to directories searched for commands.
1546 This is just `MACHINE/'. */
1548 static const char *just_machine_suffix
= 0;
1550 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1552 static const char *gcc_exec_prefix
;
1554 /* Adjusted value of standard_libexec_prefix. */
1556 static const char *gcc_libexec_prefix
;
1558 /* Default prefixes to attach to command names. */
1560 #ifndef STANDARD_STARTFILE_PREFIX_1
1561 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1563 #ifndef STANDARD_STARTFILE_PREFIX_2
1564 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1567 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1568 #undef MD_EXEC_PREFIX
1569 #undef MD_STARTFILE_PREFIX
1570 #undef MD_STARTFILE_PREFIX_1
1573 /* If no prefixes defined, use the null string, which will disable them. */
1574 #ifndef MD_EXEC_PREFIX
1575 #define MD_EXEC_PREFIX ""
1577 #ifndef MD_STARTFILE_PREFIX
1578 #define MD_STARTFILE_PREFIX ""
1580 #ifndef MD_STARTFILE_PREFIX_1
1581 #define MD_STARTFILE_PREFIX_1 ""
1584 /* These directories are locations set at configure-time based on the
1585 --prefix option provided to configure. Their initializers are
1586 defined in Makefile.in. These paths are not *directly* used when
1587 gcc_exec_prefix is set because, in that case, we know where the
1588 compiler has been installed, and use paths relative to that
1589 location instead. */
1590 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1591 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1592 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1593 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1595 /* For native compilers, these are well-known paths containing
1596 components that may be provided by the system. For cross
1597 compilers, these paths are not used. */
1598 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1599 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1600 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1601 static const char *const standard_startfile_prefix_1
1602 = STANDARD_STARTFILE_PREFIX_1
;
1603 static const char *const standard_startfile_prefix_2
1604 = STANDARD_STARTFILE_PREFIX_2
;
1606 /* A relative path to be used in finding the location of tools
1607 relative to the driver. */
1608 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1610 /* Subdirectory to use for locating libraries. Set by
1611 set_multilib_dir based on the compilation options. */
1613 static const char *multilib_dir
;
1615 /* Subdirectory to use for locating libraries in OS conventions. Set by
1616 set_multilib_dir based on the compilation options. */
1618 static const char *multilib_os_dir
;
1620 /* Structure to keep track of the specs that have been defined so far.
1621 These are accessed using %(specname) or %[specname] in a compiler
1626 /* The following 2 fields must be first */
1627 /* to allow EXTRA_SPECS to be initialized */
1628 const char *name
; /* name of the spec. */
1629 const char *ptr
; /* available ptr if no static pointer */
1631 /* The following fields are not initialized */
1632 /* by EXTRA_SPECS */
1633 const char **ptr_spec
; /* pointer to the spec itself. */
1634 struct spec_list
*next
; /* Next spec in linked list. */
1635 int name_len
; /* length of the name */
1636 int alloc_p
; /* whether string was allocated */
1639 #define INIT_STATIC_SPEC(NAME,PTR) \
1640 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1642 /* List of statically defined specs. */
1643 static struct spec_list static_specs
[] =
1645 INIT_STATIC_SPEC ("asm", &asm_spec
),
1646 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1647 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1648 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1649 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1650 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1651 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1652 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1653 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1654 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1655 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1656 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1657 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1658 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1659 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1660 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1661 INIT_STATIC_SPEC ("link", &link_spec
),
1662 INIT_STATIC_SPEC ("lib", &lib_spec
),
1663 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1664 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1665 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1666 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1667 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1668 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1669 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1670 INIT_STATIC_SPEC ("version", &compiler_version
),
1671 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1672 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1673 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1674 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1675 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1676 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1677 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1678 INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec
),
1679 INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec
),
1680 INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec
),
1681 INIT_STATIC_SPEC ("lto_libgcc", <o_libgcc_spec
),
1682 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1683 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1684 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1685 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1686 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1687 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1688 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1689 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1692 #ifdef EXTRA_SPECS /* additional specs needed */
1693 /* Structure to keep track of just the first two args of a spec_list.
1694 That is all that the EXTRA_SPECS macro gives us. */
1697 const char *const name
;
1698 const char *const ptr
;
1701 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1702 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1705 /* List of dynamically allocates specs that have been defined so far. */
1707 static struct spec_list
*specs
= (struct spec_list
*) 0;
1709 /* List of static spec functions. */
1711 static const struct spec_function static_spec_functions
[] =
1713 { "getenv", getenv_spec_function
},
1714 { "if-exists", if_exists_spec_function
},
1715 { "if-exists-else", if_exists_else_spec_function
},
1716 { "replace-outfile", replace_outfile_spec_function
},
1717 { "version-compare", version_compare_spec_function
},
1718 { "include", include_spec_function
},
1719 { "print-asm-header", print_asm_header_spec_function
},
1720 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1721 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1722 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1723 #ifdef EXTRA_SPEC_FUNCTIONS
1724 EXTRA_SPEC_FUNCTIONS
1729 static int processing_spec_function
;
1731 /* Add appropriate libgcc specs to OBSTACK, taking into account
1732 various permutations of -shared-libgcc, -shared, and such. */
1734 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1736 #ifndef USE_LD_AS_NEEDED
1737 #define USE_LD_AS_NEEDED 0
1741 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1742 const char *static_name
, const char *eh_name
)
1746 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1747 "%{!static:%{!static-libgcc:"
1748 #if USE_LD_AS_NEEDED
1749 "%{!shared-libgcc:",
1750 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1753 shared_name
, "%{!shared: ", static_name
, "}"
1757 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1758 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1762 "%{shared-libgcc:", shared_name
, "}"
1763 "%{!shared-libgcc:", static_name
, "}"
1766 "%{shared:", shared_name
, "}"
1771 obstack_grow (obstack
, buf
, strlen (buf
));
1774 #endif /* ENABLE_SHARED_LIBGCC */
1776 /* Initialize the specs lookup routines. */
1781 struct spec_list
*next
= (struct spec_list
*) 0;
1782 struct spec_list
*sl
= (struct spec_list
*) 0;
1786 return; /* Already initialized. */
1789 notice ("Using built-in specs.\n");
1792 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1794 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1796 sl
= &extra_specs
[i
];
1797 sl
->name
= extra_specs_1
[i
].name
;
1798 sl
->ptr
= extra_specs_1
[i
].ptr
;
1800 sl
->name_len
= strlen (sl
->name
);
1801 sl
->ptr_spec
= &sl
->ptr
;
1806 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1808 sl
= &static_specs
[i
];
1813 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1814 /* ??? If neither -shared-libgcc nor --static-libgcc was
1815 seen, then we should be making an educated guess. Some proposed
1816 heuristics for ELF include:
1818 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1819 program will be doing dynamic loading, which will likely
1820 need the shared libgcc.
1822 (2) If "-ldl", then it's also a fair bet that we're doing
1825 (3) For each ET_DYN we're linking against (either through -lfoo
1826 or /some/path/foo.so), check to see whether it or one of
1827 its dependencies depends on a shared libgcc.
1831 If the runtime is fixed to look for program headers instead
1832 of calling __register_frame_info at all, for each object,
1833 use the shared libgcc if any EH symbol referenced.
1835 If crtstuff is fixed to not invoke __register_frame_info
1836 automatically, for each object, use the shared libgcc if
1837 any non-empty unwind section found.
1839 Doing any of this probably requires invoking an external program to
1840 do the actual object file scanning. */
1842 const char *p
= libgcc_spec
;
1845 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1846 when given the proper command line arguments. */
1849 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1851 init_gcc_specs (&obstack
,
1853 #ifdef USE_LIBUNWIND_EXCEPTIONS
1859 #ifdef USE_LIBUNWIND_EXCEPTIONS
1860 # ifdef HAVE_LD_STATIC_DYNAMIC
1861 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1871 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1873 /* Ug. We don't know shared library extensions. Hope that
1874 systems that use this form don't do shared libraries. */
1875 init_gcc_specs (&obstack
,
1879 #ifdef USE_LIBUNWIND_EXCEPTIONS
1888 obstack_1grow (&obstack
, *p
);
1889 in_sep
= (*p
== ' ');
1894 obstack_1grow (&obstack
, '\0');
1895 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1898 #ifdef USE_AS_TRADITIONAL_FORMAT
1899 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1901 static const char tf
[] = "--traditional-format ";
1902 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1903 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1904 asm_spec
= XOBFINISH (&obstack
, const char *);
1908 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1909 # ifdef LINK_BUILDID_SPEC
1910 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1911 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1913 # ifdef LINK_EH_SPEC
1914 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1915 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1917 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1918 link_spec
= XOBFINISH (&obstack
, const char *);
1924 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1925 removed; If the spec starts with a + then SPEC is added to the end of the
1929 set_spec (const char *name
, const char *spec
)
1931 struct spec_list
*sl
;
1932 const char *old_spec
;
1933 int name_len
= strlen (name
);
1936 /* If this is the first call, initialize the statically allocated specs. */
1939 struct spec_list
*next
= (struct spec_list
*) 0;
1940 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1942 sl
= &static_specs
[i
];
1949 /* See if the spec already exists. */
1950 for (sl
= specs
; sl
; sl
= sl
->next
)
1951 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1956 /* Not found - make it. */
1957 sl
= XNEW (struct spec_list
);
1958 sl
->name
= xstrdup (name
);
1959 sl
->name_len
= name_len
;
1960 sl
->ptr_spec
= &sl
->ptr
;
1962 *(sl
->ptr_spec
) = "";
1967 old_spec
= *(sl
->ptr_spec
);
1968 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1969 ? concat (old_spec
, spec
+ 1, NULL
)
1974 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1977 /* Free the old spec. */
1978 if (old_spec
&& sl
->alloc_p
)
1979 free (CONST_CAST(char *, old_spec
));
1984 /* Accumulate a command (program name and args), and run it. */
1986 /* Vector of pointers to arguments in the current line of specifications. */
1988 static const char **argbuf
;
1990 /* Number of elements allocated in argbuf. */
1992 static int argbuf_length
;
1994 /* Number of elements in argbuf currently in use (containing args). */
1996 static int argbuf_index
;
1998 /* Position in the argbuf array containing the name of the output file
1999 (the value associated with the "-o" flag). */
2001 static int have_o_argbuf_index
= 0;
2003 /* Were the options -c or -S passed. */
2004 static int have_c
= 0;
2006 /* Was the option -o passed. */
2007 static int have_o
= 0;
2009 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2010 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2013 static struct temp_name
{
2014 const char *suffix
; /* suffix associated with the code. */
2015 int length
; /* strlen (suffix). */
2016 int unique
; /* Indicates whether %g or %u/%U was used. */
2017 const char *filename
; /* associated filename. */
2018 int filename_length
; /* strlen (filename). */
2019 struct temp_name
*next
;
2022 /* Number of commands executed so far. */
2024 static int execution_count
;
2026 /* Number of commands that exited with a signal. */
2028 static int signal_count
;
2030 /* Name with which this program was invoked. */
2032 static const char *programname
;
2034 /* Allocate the argument vector. */
2040 argbuf
= XNEWVEC (const char *, argbuf_length
);
2043 /* Clear out the vector of arguments (after a command is executed). */
2051 /* Add one argument to the vector at the end.
2052 This is done when a space is seen or at the end of the line.
2053 If DELETE_ALWAYS is nonzero, the arg is a filename
2054 and the file should be deleted eventually.
2055 If DELETE_FAILURE is nonzero, the arg is a filename
2056 and the file should be deleted if this compilation fails. */
2059 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2061 if (argbuf_index
+ 1 == argbuf_length
)
2062 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2064 argbuf
[argbuf_index
++] = arg
;
2065 argbuf
[argbuf_index
] = 0;
2067 if (strcmp (arg
, "-o") == 0)
2068 have_o_argbuf_index
= argbuf_index
;
2069 if (delete_always
|| delete_failure
)
2070 record_temp_file (arg
, delete_always
, delete_failure
);
2073 /* Load specs from a file name named FILENAME, replacing occurrences of
2074 various different types of line-endings, \r\n, \n\r and just \r, with
2078 load_specs (const char *filename
)
2082 struct stat statbuf
;
2089 notice ("Reading specs from %s\n", filename
);
2091 /* Open and stat the file. */
2092 desc
= open (filename
, O_RDONLY
, 0);
2094 pfatal_with_name (filename
);
2095 if (stat (filename
, &statbuf
) < 0)
2096 pfatal_with_name (filename
);
2098 /* Read contents of file into BUFFER. */
2099 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2100 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2102 pfatal_with_name (filename
);
2103 buffer
[readlen
] = 0;
2106 specs
= XNEWVEC (char, readlen
+ 1);
2108 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2114 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2116 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2130 /* Read compilation specs from a file named FILENAME,
2131 replacing the default ones.
2133 A suffix which starts with `*' is a definition for
2134 one of the machine-specific sub-specs. The "suffix" should be
2135 *asm, *cc1, *cpp, *link, *startfile, etc.
2136 The corresponding spec is stored in asm_spec, etc.,
2137 rather than in the `compilers' vector.
2139 Anything invalid in the file is a fatal error. */
2142 read_specs (const char *filename
, int main_p
)
2147 buffer
= load_specs (filename
);
2149 /* Scan BUFFER for specs, putting them in the vector. */
2155 char *in
, *out
, *p1
, *p2
, *p3
;
2157 /* Advance P in BUFFER to the next nonblank nocomment line. */
2158 p
= skip_whitespace (p
);
2162 /* Is this a special command that starts with '%'? */
2163 /* Don't allow this for the main specs file, since it would
2164 encourage people to overwrite it. */
2165 if (*p
== '%' && !main_p
)
2168 while (*p
&& *p
!= '\n')
2174 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2175 && (p1
[sizeof "%include" - 1] == ' '
2176 || p1
[sizeof "%include" - 1] == '\t'))
2180 p1
+= sizeof ("%include");
2181 while (*p1
== ' ' || *p1
== '\t')
2184 if (*p1
++ != '<' || p
[-2] != '>')
2185 fatal ("specs %%include syntax malformed after %ld characters",
2186 (long) (p1
- buffer
+ 1));
2189 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2190 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2193 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2194 && (p1
[sizeof "%include_noerr" - 1] == ' '
2195 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2199 p1
+= sizeof "%include_noerr";
2200 while (*p1
== ' ' || *p1
== '\t')
2203 if (*p1
++ != '<' || p
[-2] != '>')
2204 fatal ("specs %%include syntax malformed after %ld characters",
2205 (long) (p1
- buffer
+ 1));
2208 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2210 read_specs (new_filename
, FALSE
);
2211 else if (verbose_flag
)
2212 notice ("could not find specs file %s\n", p1
);
2215 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2216 && (p1
[sizeof "%rename" - 1] == ' '
2217 || p1
[sizeof "%rename" - 1] == '\t'))
2220 struct spec_list
*sl
;
2221 struct spec_list
*newsl
;
2223 /* Get original name. */
2224 p1
+= sizeof "%rename";
2225 while (*p1
== ' ' || *p1
== '\t')
2228 if (! ISALPHA ((unsigned char) *p1
))
2229 fatal ("specs %%rename syntax malformed after %ld characters",
2230 (long) (p1
- buffer
));
2233 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2236 if (*p2
!= ' ' && *p2
!= '\t')
2237 fatal ("specs %%rename syntax malformed after %ld characters",
2238 (long) (p2
- buffer
));
2242 while (*p2
== ' ' || *p2
== '\t')
2245 if (! ISALPHA ((unsigned char) *p2
))
2246 fatal ("specs %%rename syntax malformed after %ld characters",
2247 (long) (p2
- buffer
));
2249 /* Get new spec name. */
2251 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2255 fatal ("specs %%rename syntax malformed after %ld characters",
2256 (long) (p3
- buffer
));
2259 for (sl
= specs
; sl
; sl
= sl
->next
)
2260 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2264 fatal ("specs %s spec was not found to be renamed", p1
);
2266 if (strcmp (p1
, p2
) == 0)
2269 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2270 if (strcmp (newsl
->name
, p2
) == 0)
2271 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2276 notice ("rename spec %s to %s\n", p1
, p2
);
2278 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2282 set_spec (p2
, *(sl
->ptr_spec
));
2284 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2286 *(sl
->ptr_spec
) = "";
2291 fatal ("specs unknown %% command after %ld characters",
2292 (long) (p1
- buffer
));
2295 /* Find the colon that should end the suffix. */
2297 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2300 /* The colon shouldn't be missing. */
2302 fatal ("specs file malformed after %ld characters",
2303 (long) (p1
- buffer
));
2305 /* Skip back over trailing whitespace. */
2307 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2310 /* Copy the suffix to a string. */
2311 suffix
= save_string (p
, p2
- p
);
2312 /* Find the next line. */
2313 p
= skip_whitespace (p1
+ 1);
2315 fatal ("specs file malformed after %ld characters",
2316 (long) (p
- buffer
));
2319 /* Find next blank line or end of string. */
2320 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2323 /* Specs end at the blank line and do not include the newline. */
2324 spec
= save_string (p
, p1
- p
);
2327 /* Delete backslash-newline sequences from the spec. */
2332 if (in
[0] == '\\' && in
[1] == '\n')
2334 else if (in
[0] == '#')
2335 while (*in
&& *in
!= '\n')
2343 if (suffix
[0] == '*')
2345 if (! strcmp (suffix
, "*link_command"))
2346 link_command_spec
= spec
;
2348 set_spec (suffix
+ 1, spec
);
2352 /* Add this pair to the vector. */
2354 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2356 compilers
[n_compilers
].suffix
= suffix
;
2357 compilers
[n_compilers
].spec
= spec
;
2359 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2363 link_command_spec
= spec
;
2366 if (link_command_spec
== 0)
2367 fatal ("spec file has no spec for linking");
2370 /* Record the names of temporary files we tell compilers to write,
2371 and delete them at the end of the run. */
2373 /* This is the common prefix we use to make temp file names.
2374 It is chosen once for each run of this program.
2375 It is substituted into a spec by %g or %j.
2376 Thus, all temp file names contain this prefix.
2377 In practice, all temp file names start with this prefix.
2379 This prefix comes from the envvar TMPDIR if it is defined;
2380 otherwise, from the P_tmpdir macro if that is defined;
2381 otherwise, in /usr/tmp or /tmp;
2382 or finally the current directory if all else fails. */
2384 static const char *temp_filename
;
2386 /* Length of the prefix. */
2388 static int temp_filename_length
;
2390 /* Define the list of temporary files to delete. */
2395 struct temp_file
*next
;
2398 /* Queue of files to delete on success or failure of compilation. */
2399 static struct temp_file
*always_delete_queue
;
2400 /* Queue of files to delete on failure of compilation. */
2401 static struct temp_file
*failure_delete_queue
;
2403 /* Record FILENAME as a file to be deleted automatically.
2404 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2405 otherwise delete it in any case.
2406 FAIL_DELETE nonzero means delete it if a compilation step fails;
2407 otherwise delete it in any case. */
2410 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2412 char *const name
= xstrdup (filename
);
2416 struct temp_file
*temp
;
2417 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2418 if (! strcmp (name
, temp
->name
))
2421 temp
= XNEW (struct temp_file
);
2422 temp
->next
= always_delete_queue
;
2424 always_delete_queue
= temp
;
2431 struct temp_file
*temp
;
2432 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2433 if (! strcmp (name
, temp
->name
))
2436 temp
= XNEW (struct temp_file
);
2437 temp
->next
= failure_delete_queue
;
2439 failure_delete_queue
= temp
;
2445 /* Delete all the temporary files whose names we previously recorded. */
2447 #ifndef DELETE_IF_ORDINARY
2448 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2451 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2452 if (unlink (NAME) < 0) \
2454 perror_with_name (NAME); \
2459 delete_if_ordinary (const char *name
)
2465 printf ("Delete %s? (y or n) ", name
);
2469 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2472 if (i
== 'y' || i
== 'Y')
2474 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2478 delete_temp_files (void)
2480 struct temp_file
*temp
;
2482 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2483 delete_if_ordinary (temp
->name
);
2484 always_delete_queue
= 0;
2487 /* Delete all the files to be deleted on error. */
2490 delete_failure_queue (void)
2492 struct temp_file
*temp
;
2494 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2495 delete_if_ordinary (temp
->name
);
2499 clear_failure_queue (void)
2501 failure_delete_queue
= 0;
2504 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2506 If DO_MULTI is true iterate over the paths twice, first with multilib
2507 suffix then without, otherwise iterate over the paths once without
2508 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2509 to avoid visiting the same path twice, but we could do better. For
2510 instance, /usr/lib/../lib is considered different from /usr/lib.
2511 At least EXTRA_SPACE chars past the end of the path passed to
2512 CALLBACK are available for use by the callback.
2513 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2515 Returns the value returned by CALLBACK. */
2518 for_each_path (const struct path_prefix
*paths
,
2521 void *(*callback
) (char *, void *),
2522 void *callback_info
)
2524 struct prefix_list
*pl
;
2525 const char *multi_dir
= NULL
;
2526 const char *multi_os_dir
= NULL
;
2527 const char *multi_suffix
;
2528 const char *just_multi_suffix
;
2531 bool skip_multi_dir
= false;
2532 bool skip_multi_os_dir
= false;
2534 multi_suffix
= machine_suffix
;
2535 just_multi_suffix
= just_machine_suffix
;
2536 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2538 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2539 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2540 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2542 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2543 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2547 size_t multi_dir_len
= 0;
2548 size_t multi_os_dir_len
= 0;
2550 size_t just_suffix_len
;
2554 multi_dir_len
= strlen (multi_dir
);
2556 multi_os_dir_len
= strlen (multi_os_dir
);
2557 suffix_len
= strlen (multi_suffix
);
2558 just_suffix_len
= strlen (just_multi_suffix
);
2562 len
= paths
->max_len
+ extra_space
+ 1;
2563 if (suffix_len
> multi_os_dir_len
)
2566 len
+= multi_os_dir_len
;
2567 path
= XNEWVEC (char, len
);
2570 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2572 len
= strlen (pl
->prefix
);
2573 memcpy (path
, pl
->prefix
, len
);
2575 /* Look first in MACHINE/VERSION subdirectory. */
2576 if (!skip_multi_dir
)
2578 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2579 ret
= callback (path
, callback_info
);
2584 /* Some paths are tried with just the machine (ie. target)
2585 subdir. This is used for finding as, ld, etc. */
2587 && pl
->require_machine_suffix
== 2)
2589 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2590 ret
= callback (path
, callback_info
);
2595 /* Now try the base path. */
2596 if (!pl
->require_machine_suffix
2597 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2599 const char *this_multi
;
2600 size_t this_multi_len
;
2602 if (pl
->os_multilib
)
2604 this_multi
= multi_os_dir
;
2605 this_multi_len
= multi_os_dir_len
;
2609 this_multi
= multi_dir
;
2610 this_multi_len
= multi_dir_len
;
2614 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2618 ret
= callback (path
, callback_info
);
2626 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2629 /* Run through the paths again, this time without multilibs.
2630 Don't repeat any we have already seen. */
2633 free (CONST_CAST (char *, multi_dir
));
2635 free (CONST_CAST (char *, multi_suffix
));
2636 multi_suffix
= machine_suffix
;
2637 free (CONST_CAST (char *, just_multi_suffix
));
2638 just_multi_suffix
= just_machine_suffix
;
2641 skip_multi_dir
= true;
2644 free (CONST_CAST (char *, multi_os_dir
));
2645 multi_os_dir
= NULL
;
2648 skip_multi_os_dir
= true;
2653 free (CONST_CAST (char *, multi_dir
));
2654 free (CONST_CAST (char *, multi_suffix
));
2655 free (CONST_CAST (char *, just_multi_suffix
));
2658 free (CONST_CAST (char *, multi_os_dir
));
2664 /* Callback for build_search_list. Adds path to obstack being built. */
2666 struct add_to_obstack_info
{
2673 add_to_obstack (char *path
, void *data
)
2675 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2677 if (info
->check_dir
&& !is_directory (path
, false))
2680 if (!info
->first_time
)
2681 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2683 obstack_grow (info
->ob
, path
, strlen (path
));
2685 info
->first_time
= false;
2689 /* Add or change the value of an environment variable, outputting the
2690 change to standard error if in verbose mode. */
2692 xputenv (const char *string
)
2695 notice ("%s\n", string
);
2696 putenv (CONST_CAST (char *, string
));
2699 /* Build a list of search directories from PATHS.
2700 PREFIX is a string to prepend to the list.
2701 If CHECK_DIR_P is true we ensure the directory exists.
2702 If DO_MULTI is true, multilib paths are output first, then
2704 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2705 It is also used by the --print-search-dirs flag. */
2708 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2709 bool check_dir
, bool do_multi
)
2711 struct add_to_obstack_info info
;
2713 info
.ob
= &collect_obstack
;
2714 info
.check_dir
= check_dir
;
2715 info
.first_time
= true;
2717 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2718 obstack_1grow (&collect_obstack
, '=');
2720 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2722 obstack_1grow (&collect_obstack
, '\0');
2723 return XOBFINISH (&collect_obstack
, char *);
2726 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2730 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2733 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2736 /* Check whether NAME can be accessed in MODE. This is like access,
2737 except that it never considers directories to be executable. */
2740 access_check (const char *name
, int mode
)
2746 if (stat (name
, &st
) < 0
2747 || S_ISDIR (st
.st_mode
))
2751 return access (name
, mode
);
2754 /* Callback for find_a_file. Appends the file name to the directory
2755 path. If the resulting file exists in the right mode, return the
2756 full pathname to the file. */
2758 struct file_at_path_info
{
2767 file_at_path (char *path
, void *data
)
2769 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2770 size_t len
= strlen (path
);
2772 memcpy (path
+ len
, info
->name
, info
->name_len
);
2773 len
+= info
->name_len
;
2775 /* Some systems have a suffix for executable files.
2776 So try appending that first. */
2777 if (info
->suffix_len
)
2779 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2780 if (access_check (path
, info
->mode
) == 0)
2785 if (access_check (path
, info
->mode
) == 0)
2791 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2792 access to check permissions. If DO_MULTI is true, search multilib
2793 paths then non-multilib paths, otherwise do not search multilib paths.
2794 Return 0 if not found, otherwise return its name, allocated with malloc. */
2797 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2800 struct file_at_path_info info
;
2802 #ifdef DEFAULT_ASSEMBLER
2803 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2804 return xstrdup (DEFAULT_ASSEMBLER
);
2807 #ifdef DEFAULT_LINKER
2808 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2809 return xstrdup (DEFAULT_LINKER
);
2812 /* Determine the filename to execute (special case for absolute paths). */
2814 if (IS_ABSOLUTE_PATH (name
))
2816 if (access (name
, mode
) == 0)
2817 return xstrdup (name
);
2823 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2824 info
.name_len
= strlen (info
.name
);
2825 info
.suffix_len
= strlen (info
.suffix
);
2828 return (char*) for_each_path (pprefix
, do_multi
,
2829 info
.name_len
+ info
.suffix_len
,
2830 file_at_path
, &info
);
2833 /* Ranking of prefixes in the sort list. -B prefixes are put before
2836 enum path_prefix_priority
2838 PREFIX_PRIORITY_B_OPT
,
2839 PREFIX_PRIORITY_LAST
2842 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2843 order according to PRIORITY. Within each PRIORITY, new entries are
2846 If WARN is nonzero, we will warn if no file is found
2847 through this prefix. WARN should point to an int
2848 which will be set to 1 if this entry is used.
2850 COMPONENT is the value to be passed to update_path.
2852 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2853 the complete value of machine_suffix.
2854 2 means try both machine_suffix and just_machine_suffix. */
2857 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2858 const char *component
, /* enum prefix_priority */ int priority
,
2859 int require_machine_suffix
, int os_multilib
)
2861 struct prefix_list
*pl
, **prev
;
2864 for (prev
= &pprefix
->plist
;
2865 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2866 prev
= &(*prev
)->next
)
2869 /* Keep track of the longest prefix. */
2871 prefix
= update_path (prefix
, component
);
2872 len
= strlen (prefix
);
2873 if (len
> pprefix
->max_len
)
2874 pprefix
->max_len
= len
;
2876 pl
= XNEW (struct prefix_list
);
2877 pl
->prefix
= prefix
;
2878 pl
->require_machine_suffix
= require_machine_suffix
;
2879 pl
->priority
= priority
;
2880 pl
->os_multilib
= os_multilib
;
2882 /* Insert after PREV. */
2887 /* Same as add_prefix, but prepending target_system_root to prefix. */
2888 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2890 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2891 const char *component
,
2892 /* enum prefix_priority */ int priority
,
2893 int require_machine_suffix
, int os_multilib
)
2895 if (!IS_ABSOLUTE_PATH (prefix
))
2896 fatal ("system path '%s' is not absolute", prefix
);
2898 if (target_system_root
)
2900 if (target_sysroot_suffix
)
2901 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2902 prefix
= concat (target_system_root
, prefix
, NULL
);
2904 /* We have to override this because GCC's notion of sysroot
2905 moves along with GCC. */
2909 add_prefix (pprefix
, prefix
, component
, priority
,
2910 require_machine_suffix
, os_multilib
);
2913 /* Execute the command specified by the arguments on the current line of spec.
2914 When using pipes, this includes several piped-together commands
2915 with `|' between them.
2917 Return 0 if successful, -1 if failed. */
2923 int n_commands
; /* # of command. */
2925 struct pex_obj
*pex
;
2928 const char *prog
; /* program name. */
2929 const char **argv
; /* vector of args. */
2932 struct command
*commands
; /* each command buffer with above info. */
2934 gcc_assert (!processing_spec_function
);
2938 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2939 argbuf
[0] = (string
) ? string
: argbuf
[0];
2940 insert_wrapper (wrapper_string
);
2943 /* Count # of piped commands. */
2944 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2945 if (strcmp (argbuf
[i
], "|") == 0)
2948 /* Get storage for each command. */
2949 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2951 /* Split argbuf into its separate piped processes,
2952 and record info about each one.
2953 Also search for the programs that are to be run. */
2955 commands
[0].prog
= argbuf
[0]; /* first command. */
2956 commands
[0].argv
= &argbuf
[0];
2958 if (!wrapper_string
)
2960 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2961 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2964 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2965 if (strcmp (argbuf
[i
], "|") == 0)
2966 { /* each command. */
2967 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2968 fatal ("-pipe not supported");
2970 argbuf
[i
] = 0; /* termination of command args. */
2971 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2972 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2973 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2976 commands
[n_commands
].argv
[0] = string
;
2980 argbuf
[argbuf_index
] = 0;
2982 /* If -v, print what we are about to do, and maybe query. */
2986 /* For help listings, put a blank line between sub-processes. */
2987 if (print_help_list
)
2988 fputc ('\n', stderr
);
2990 /* Print each piped command as a separate line. */
2991 for (i
= 0; i
< n_commands
; i
++)
2993 const char *const *j
;
2995 if (verbose_only_flag
)
2997 for (j
= commands
[i
].argv
; *j
; j
++)
3000 fprintf (stderr
, " \"");
3001 for (p
= *j
; *p
; ++p
)
3003 if (*p
== '"' || *p
== '\\' || *p
== '$')
3004 fputc ('\\', stderr
);
3007 fputc ('"', stderr
);
3011 for (j
= commands
[i
].argv
; *j
; j
++)
3012 fprintf (stderr
, " %s", *j
);
3014 /* Print a pipe symbol after all but the last command. */
3015 if (i
+ 1 != n_commands
)
3016 fprintf (stderr
, " |");
3017 fprintf (stderr
, "\n");
3020 if (verbose_only_flag
!= 0)
3022 /* verbose_only_flag should act as if the spec was
3023 executed, so increment execution_count before
3024 returning. This prevents spurious warnings about
3025 unused linker input files, etc. */
3030 notice ("\nGo ahead? (y or n) ");
3034 while (getchar () != '\n')
3037 if (i
!= 'y' && i
!= 'Y')
3042 #ifdef ENABLE_VALGRIND_CHECKING
3043 /* Run the each command through valgrind. To simplify prepending the
3044 path to valgrind and the option "-q" (for quiet operation unless
3045 something triggers), we allocate a separate argv array. */
3047 for (i
= 0; i
< n_commands
; i
++)
3053 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3056 argv
= XALLOCAVEC (const char *, argc
+ 3);
3058 argv
[0] = VALGRIND_PATH
;
3060 for (j
= 2; j
< argc
+ 2; j
++)
3061 argv
[j
] = commands
[i
].argv
[j
- 2];
3064 commands
[i
].argv
= argv
;
3065 commands
[i
].prog
= argv
[0];
3069 /* Run each piped subprocess. */
3071 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3072 ? PEX_RECORD_TIMES
: 0),
3073 programname
, temp_filename
);
3075 pfatal_with_name (_("pex_init failed"));
3077 for (i
= 0; i
< n_commands
; i
++)
3081 const char *string
= commands
[i
].argv
[0];
3083 errmsg
= pex_run (pex
,
3084 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3085 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3086 string
, CONST_CAST (char **, commands
[i
].argv
),
3095 pfatal_with_name (errmsg
);
3099 if (string
!= commands
[i
].prog
)
3100 free (CONST_CAST (char *, string
));
3105 /* Wait for all the subprocesses to finish. */
3109 struct pex_time
*times
= NULL
;
3112 statuses
= (int *) alloca (n_commands
* sizeof (int));
3113 if (!pex_get_status (pex
, n_commands
, statuses
))
3114 pfatal_with_name (_("failed to get exit status"));
3116 if (report_times
|| report_times_to_file
)
3118 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3119 if (!pex_get_times (pex
, n_commands
, times
))
3120 pfatal_with_name (_("failed to get process times"));
3125 for (i
= 0; i
< n_commands
; ++i
)
3127 int status
= statuses
[i
];
3129 if (WIFSIGNALED (status
))
3132 /* SIGPIPE is a special case. It happens in -pipe mode
3133 when the compiler dies before the preprocessor is done,
3134 or the assembler dies before the compiler is done.
3135 There's generally been an error already, and this is
3136 just fallout. So don't generate another error unless
3137 we would otherwise have succeeded. */
3138 if (WTERMSIG (status
) == SIGPIPE
3139 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3147 Internal error: %s (program %s)\n\
3148 Please submit a full bug report.\n\
3149 See %s for instructions.",
3150 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3153 else if (WIFEXITED (status
)
3154 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3156 if (WEXITSTATUS (status
) > greatest_status
)
3157 greatest_status
= WEXITSTATUS (status
);
3161 if (report_times
|| report_times_to_file
)
3163 struct pex_time
*pt
= ×
[i
];
3166 ut
= ((double) pt
->user_seconds
3167 + (double) pt
->user_microseconds
/ 1.0e6
);
3168 st
= ((double) pt
->system_seconds
3169 + (double) pt
->system_microseconds
/ 1.0e6
);
3174 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3176 if (report_times_to_file
)
3179 const char *const *j
;
3181 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3183 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3186 for (p
= *j
; *p
; ++p
)
3187 if (*p
== '"' || *p
== '\\' || *p
== '$'
3193 fprintf (report_times_to_file
, " \"");
3194 for (p
= *j
; *p
; ++p
)
3196 if (*p
== '"' || *p
== '\\' || *p
== '$')
3197 fputc ('\\', report_times_to_file
);
3198 fputc (*p
, report_times_to_file
);
3200 fputc ('"', report_times_to_file
);
3203 fprintf (report_times_to_file
, " %s", *j
);
3206 fputc ('\n', report_times_to_file
);
3216 /* Find all the switches given to us
3217 and make a vector describing them.
3218 The elements of the vector are strings, one per switch given.
3219 If a switch uses following arguments, then the `part1' field
3220 is the switch itself and the `args' field
3221 is a null-terminated vector containing the following arguments.
3222 Bits in the `live_cond' field are:
3223 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3224 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3225 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3226 The `validated' field is nonzero if any spec has looked at this switch;
3227 if it remains zero at the end of the run, it must be meaningless. */
3229 #define SWITCH_LIVE 0x1
3230 #define SWITCH_FALSE 0x2
3231 #define SWITCH_IGNORE 0x4
3237 unsigned int live_cond
;
3238 unsigned char validated
;
3239 unsigned char ordering
;
3242 static struct switchstr
*switches
;
3244 static int n_switches
;
3246 /* Set to zero if -fcompare-debug is disabled, positive if it's
3247 enabled and we're running the first compilation, negative if it's
3248 enabled and we're running the second compilation. For most of the
3249 time, it's in the range -1..1, but it can be temporarily set to 2
3250 or 3 to indicate that the -fcompare-debug flags didn't come from
3251 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3252 variable, until a synthesized -fcompare-debug flag is added to the
3256 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3257 int compare_debug_second
;
3259 /* Set to the flags that should be passed to the second compilation in
3260 a -fcompare-debug compilation. */
3261 const char *compare_debug_opt
;
3263 static struct switchstr
*switches_debug_check
[2];
3265 static int n_switches_debug_check
[2];
3267 static char *debug_check_temp_file
[2];
3269 /* Language is one of three things:
3271 1) The name of a real programming language.
3272 2) NULL, indicating that no one has figured out
3274 3) '*', indicating that the file should be passed
3279 const char *language
;
3280 struct compiler
*incompiler
;
3285 /* Also a vector of input files specified. */
3287 static struct infile
*infiles
;
3291 /* True if multiple input files are being compiled to a single
3294 static bool combine_inputs
;
3296 /* This counts the number of libraries added by lang_specific_driver, so that
3297 we can tell if there were any user supplied any files or libraries. */
3299 static int added_libraries
;
3301 /* And a vector of corresponding output files is made up later. */
3303 const char **outfiles
;
3305 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3307 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3308 is true if we should look for an executable suffix. DO_OBJ
3309 is true if we should look for an object suffix. */
3312 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3313 int do_obj ATTRIBUTE_UNUSED
)
3315 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3323 len
= strlen (name
);
3325 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3326 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3327 if (do_obj
&& len
> 2
3328 && name
[len
- 2] == '.'
3329 && name
[len
- 1] == 'o')
3331 obstack_grow (&obstack
, name
, len
- 2);
3332 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3333 name
= XOBFINISH (&obstack
, const char *);
3337 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3338 /* If there is no filetype, make it the executable suffix (which includes
3339 the "."). But don't get confused if we have just "-o". */
3340 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3343 for (i
= len
- 1; i
>= 0; i
--)
3344 if (IS_DIR_SEPARATOR (name
[i
]))
3347 for (i
++; i
< len
; i
++)
3351 obstack_grow (&obstack
, name
, len
);
3352 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3353 strlen (TARGET_EXECUTABLE_SUFFIX
));
3354 name
= XOBFINISH (&obstack
, const char *);
3361 /* Display the command line switches accepted by gcc. */
3365 printf (_("Usage: %s [options] file...\n"), programname
);
3366 fputs (_("Options:\n"), stdout
);
3368 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3369 fputs (_(" --help Display this information\n"), stdout
);
3370 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3371 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3372 fputs (_(" Display specific types of command line options\n"), stdout
);
3374 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3375 fputs (_(" --version Display compiler version information\n"), stdout
);
3376 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3377 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3378 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3379 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3380 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3381 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3382 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3383 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3385 -print-multi-lib Display the mapping between command line options and\n\
3386 multiple library search directories\n"), stdout
);
3387 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3388 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3389 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3390 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3391 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3392 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3393 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3394 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3395 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3396 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3397 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3398 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3400 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3401 prefixes to other gcc components\n"), stdout
);
3402 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3403 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3404 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3405 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3407 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3408 and libraries\n"), stdout
);
3409 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3410 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3411 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3412 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3413 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3414 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3415 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3416 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3417 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3419 -x <language> Specify the language of the following input files\n\
3420 Permissible languages include: c c++ assembler none\n\
3421 'none' means revert to the default behavior of\n\
3422 guessing the language based on the file's extension\n\
3426 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3427 passed on to the various sub-processes invoked by %s. In order to pass\n\
3428 other options on to these processes the -W<letter> options must be used.\n\
3431 /* The rest of the options are displayed by invocations of the various
3436 add_preprocessor_option (const char *option
, int len
)
3438 n_preprocessor_options
++;
3440 if (! preprocessor_options
)
3441 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3443 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3444 n_preprocessor_options
);
3446 preprocessor_options
[n_preprocessor_options
- 1] =
3447 save_string (option
, len
);
3451 add_assembler_option (const char *option
, int len
)
3453 n_assembler_options
++;
3455 if (! assembler_options
)
3456 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3458 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3459 n_assembler_options
);
3461 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3465 add_linker_option (const char *option
, int len
)
3469 if (! linker_options
)
3470 linker_options
= XNEWVEC (char *, n_linker_options
);
3472 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3474 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3477 /* Create the vector `switches' and its contents.
3478 Store its length in `n_switches'. */
3481 process_command (int argc
, const char **argv
)
3486 const char *spec_lang
= 0;
3487 int last_language_n_infiles
;
3488 int lang_n_infiles
= 0;
3489 #ifdef MODIFY_TARGET_NAME
3490 int is_modify_target_name
;
3493 const char *tooldir_prefix
;
3494 char *(*get_relative_prefix
) (const char *, const char *,
3495 const char *) = NULL
;
3497 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3501 added_libraries
= 0;
3503 /* Figure compiler version from version string. */
3505 compiler_version
= temp1
= xstrdup (version_string
);
3507 for (; *temp1
; ++temp1
)
3516 /* If there is a -V or -b option (or both), process it now, before
3517 trying to interpret the rest of the command line.
3518 Use heuristic that all configuration names must have at least
3519 one dash '-'. This allows us to pass options starting with -b. */
3520 if (argc
> 1 && argv
[1][0] == '-'
3521 && (argv
[1][1] == 'V'
3522 || (argv
[1][1] == 'b'
3523 && (argv
[1][2] == '\0'
3524 || NULL
!= strchr (argv
[1] + 2, '-')))))
3526 const char *new_version
= DEFAULT_TARGET_VERSION
;
3527 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3528 const char *progname
= argv
[0];
3536 while (argc
> 1 && argv
[1][0] == '-'
3537 && (argv
[1][1] == 'V'
3538 || (argv
[1][1] == 'b'
3539 && (argv
[1][2] == '\0'
3540 || NULL
!= strchr (argv
[1] + 2, '-')))))
3542 char opt
= argv
[1][1];
3544 if (argv
[1][2] != '\0')
3557 fatal ("'-%c' option must have argument", opt
);
3564 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3565 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3567 new_argv0
= XDUPVAR (char, progname
, baselen
,
3568 baselen
+ concat_length (new_version
, new_machine
,
3569 "-gcc-", NULL
) + 1);
3570 strcpy (new_argv0
+ baselen
, new_machine
);
3571 strcat (new_argv0
, "-gcc-");
3572 strcat (new_argv0
, new_version
);
3574 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3575 new_argv
[0] = new_argv0
;
3577 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3578 NULL
, &status
, &err
);
3583 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3585 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3591 /* Convert new-style -- options to old-style. */
3592 translate_options (&argc
,
3593 CONST_CAST2 (const char *const **, const char ***,
3596 /* Do language-specific adjustment/addition of flags. */
3597 lang_specific_driver (&argc
,
3598 CONST_CAST2 (const char *const **, const char ***,
3602 /* Handle any -no-canonical-prefixes flag early, to assign the function
3603 that builds relative prefixes. This function creates default search
3604 paths that are needed later in normal option handling. */
3606 for (i
= 1; i
< argc
; i
++)
3608 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3610 get_relative_prefix
= make_relative_prefix_ignore_links
;
3614 if (! get_relative_prefix
)
3615 get_relative_prefix
= make_relative_prefix
;
3617 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3618 see if we can create it from the pathname specified in argv[0]. */
3620 gcc_libexec_prefix
= standard_libexec_prefix
;
3622 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3623 if (!gcc_exec_prefix
)
3625 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3626 standard_bindir_prefix
,
3627 standard_exec_prefix
);
3628 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3629 standard_bindir_prefix
,
3630 standard_libexec_prefix
);
3631 if (gcc_exec_prefix
)
3632 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3636 /* make_relative_prefix requires a program name, but
3637 GCC_EXEC_PREFIX is typically a directory name with a trailing
3638 / (which is ignored by make_relative_prefix), so append a
3640 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3641 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3642 standard_exec_prefix
,
3643 standard_libexec_prefix
);
3645 /* The path is unrelocated, so fallback to the original setting. */
3646 if (!gcc_libexec_prefix
)
3647 gcc_libexec_prefix
= standard_libexec_prefix
;
3653 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3654 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3655 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3657 if (gcc_exec_prefix
)
3659 int len
= strlen (gcc_exec_prefix
);
3661 if (len
> (int) sizeof ("/lib/gcc/") - 1
3662 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3664 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3665 if (IS_DIR_SEPARATOR (*temp
)
3666 && strncmp (temp
+ 1, "lib", 3) == 0
3667 && IS_DIR_SEPARATOR (temp
[4])
3668 && strncmp (temp
+ 5, "gcc", 3) == 0)
3669 len
-= sizeof ("/lib/gcc/") - 1;
3672 set_std_prefix (gcc_exec_prefix
, len
);
3673 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3674 PREFIX_PRIORITY_LAST
, 0, 0);
3675 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3676 PREFIX_PRIORITY_LAST
, 0, 0);
3679 /* COMPILER_PATH and LIBRARY_PATH have values
3680 that are lists of directory names with colons. */
3682 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3685 const char *startp
, *endp
;
3686 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3688 startp
= endp
= temp
;
3691 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3693 strncpy (nstore
, startp
, endp
- startp
);
3695 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3696 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3698 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3699 nstore
[endp
- startp
+ 1] = 0;
3702 nstore
[endp
- startp
] = 0;
3703 add_prefix (&exec_prefixes
, nstore
, 0,
3704 PREFIX_PRIORITY_LAST
, 0, 0);
3705 add_prefix (&include_prefixes
, nstore
, 0,
3706 PREFIX_PRIORITY_LAST
, 0, 0);
3709 endp
= startp
= endp
+ 1;
3716 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3717 if (temp
&& *cross_compile
== '0')
3719 const char *startp
, *endp
;
3720 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3722 startp
= endp
= temp
;
3725 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3727 strncpy (nstore
, startp
, endp
- startp
);
3729 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3730 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3732 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3733 nstore
[endp
- startp
+ 1] = 0;
3736 nstore
[endp
- startp
] = 0;
3737 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3738 PREFIX_PRIORITY_LAST
, 0, 1);
3741 endp
= startp
= endp
+ 1;
3748 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3749 GET_ENVIRONMENT (temp
, "LPATH");
3750 if (temp
&& *cross_compile
== '0')
3752 const char *startp
, *endp
;
3753 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3755 startp
= endp
= temp
;
3758 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3760 strncpy (nstore
, startp
, endp
- startp
);
3762 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3763 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3765 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3766 nstore
[endp
- startp
+ 1] = 0;
3769 nstore
[endp
- startp
] = 0;
3770 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3771 PREFIX_PRIORITY_LAST
, 0, 1);
3774 endp
= startp
= endp
+ 1;
3781 /* Scan argv twice. Here, the first time, just count how many switches
3782 there will be in their vector, and how many input files in theirs.
3783 Here we also parse the switches that cc itself uses (e.g. -v). */
3785 for (i
= 1; i
< argc
; i
++)
3787 if (! strcmp (argv
[i
], "-dumpspecs"))
3789 struct spec_list
*sl
;
3791 for (sl
= specs
; sl
; sl
= sl
->next
)
3792 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3793 if (link_command_spec
)
3794 printf ("*link_command:\n%s\n\n", link_command_spec
);
3797 else if (! strcmp (argv
[i
], "-dumpversion"))
3799 printf ("%s\n", spec_version
);
3802 else if (! strcmp (argv
[i
], "-dumpmachine"))
3804 printf ("%s\n", spec_machine
);
3807 else if (strcmp (argv
[i
], "-fversion") == 0)
3809 /* translate_options () has turned --version into -fversion. */
3812 /* We will be passing a dummy file on to the sub-processes. */
3816 /* CPP driver cannot obtain switch from cc1_options. */
3818 add_preprocessor_option ("--version", strlen ("--version"));
3819 add_assembler_option ("--version", strlen ("--version"));
3820 add_linker_option ("--version", strlen ("--version"));
3822 else if (strcmp (argv
[i
], "-fhelp") == 0)
3824 /* translate_options () has turned --help into -fhelp. */
3825 print_help_list
= 1;
3827 /* We will be passing a dummy file on to the sub-processes. */
3831 /* CPP driver cannot obtain switch from cc1_options. */
3833 add_preprocessor_option ("--help", 6);
3834 add_assembler_option ("--help", 6);
3835 add_linker_option ("--help", 6);
3837 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3839 /* translate_options () has turned --help into -fhelp. */
3840 print_subprocess_help
= 2;
3842 /* We will be passing a dummy file on to the sub-processes. */
3846 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3848 /* translate_options() has turned --target-help into -ftarget-help. */
3849 print_subprocess_help
= 1;
3851 /* We will be passing a dummy file on to the sub-processes. */
3855 /* CPP driver cannot obtain switch from cc1_options. */
3857 add_preprocessor_option ("--target-help", 13);
3858 add_assembler_option ("--target-help", 13);
3859 add_linker_option ("--target-help", 13);
3861 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3863 pass_exit_codes
= 1;
3866 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3867 print_search_dirs
= 1;
3868 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3869 print_file_name
= "libgcc.a";
3870 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3871 print_file_name
= argv
[i
] + 17;
3872 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3873 print_prog_name
= argv
[i
] + 17;
3874 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3875 print_multi_lib
= 1;
3876 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3877 print_multi_directory
= 1;
3878 else if (! strcmp (argv
[i
], "-print-sysroot"))
3880 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3881 print_multi_os_directory
= 1;
3882 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3883 print_sysroot_headers_suffix
= 1;
3884 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3886 compare_debug_second
= 1;
3889 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3891 argv
[i
] = "-fcompare-debug=";
3892 goto compare_debug_with_arg
;
3894 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3896 argv
[i
] = "-fcompare-debug=-gtoggle";
3897 goto compare_debug_with_arg
;
3899 #define OPT "-fcompare-debug="
3900 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3903 compare_debug_with_arg
:
3904 opt
= argv
[i
] + sizeof (OPT
) - 1;
3910 if (compare_debug
< 0)
3911 compare_debug_opt
= NULL
;
3913 compare_debug_opt
= opt
;
3916 else if (! strncmp (argv
[i
], "-Wa,", 4))
3919 /* Pass the rest of this option to the assembler. */
3921 /* Split the argument at commas. */
3923 for (j
= 4; argv
[i
][j
]; j
++)
3924 if (argv
[i
][j
] == ',')
3926 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3930 /* Record the part after the last comma. */
3931 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3933 else if (! strncmp (argv
[i
], "-Wp,", 4))
3936 /* Pass the rest of this option to the preprocessor. */
3938 /* Split the argument at commas. */
3940 for (j
= 4; argv
[i
][j
]; j
++)
3941 if (argv
[i
][j
] == ',')
3943 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3947 /* Record the part after the last comma. */
3948 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3950 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3951 /* The +e options to the C++ front-end. */
3953 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3956 /* Split the argument at commas. */
3957 for (j
= 3; argv
[i
][j
]; j
++)
3958 n_infiles
+= (argv
[i
][j
] == ',');
3960 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3963 fatal ("argument to '-Xlinker' is missing");
3968 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3971 fatal ("argument to '-Xpreprocessor' is missing");
3973 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3975 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3978 fatal ("argument to '-Xassembler' is missing");
3980 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3982 else if (strcmp (argv
[i
], "-l") == 0)
3985 fatal ("argument to '-l' is missing");
3990 else if (strncmp (argv
[i
], "-l", 2) == 0)
3992 else if (strcmp (argv
[i
], "-save-temps") == 0)
3994 save_temps_flag
= SAVE_TEMPS_CWD
;
3997 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
4000 if (strcmp (argv
[i
]+12, "cwd") == 0)
4001 save_temps_flag
= SAVE_TEMPS_CWD
;
4002 else if (strcmp (argv
[i
]+12, "obj") == 0
4003 || strcmp (argv
[i
]+12, "object") == 0)
4004 save_temps_flag
= SAVE_TEMPS_OBJ
;
4006 fatal ("'%s' is an unknown -save-temps option", argv
[i
]);
4008 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
4009 /* Already handled as a special case, so ignored here. */
4011 else if (strcmp (argv
[i
], "-combine") == 0)
4016 else if (strcmp (argv
[i
], "-specs") == 0)
4018 struct user_specs
*user
= XNEW (struct user_specs
);
4020 fatal ("argument to '-specs' is missing");
4022 user
->next
= (struct user_specs
*) 0;
4023 user
->filename
= argv
[i
];
4024 if (user_specs_tail
)
4025 user_specs_tail
->next
= user
;
4027 user_specs_head
= user
;
4028 user_specs_tail
= user
;
4030 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4032 struct user_specs
*user
= XNEW (struct user_specs
);
4033 if (strlen (argv
[i
]) == 7)
4034 fatal ("argument to '-specs=' is missing");
4036 user
->next
= (struct user_specs
*) 0;
4037 user
->filename
= argv
[i
] + 7;
4038 if (user_specs_tail
)
4039 user_specs_tail
->next
= user
;
4041 user_specs_head
= user
;
4042 user_specs_tail
= user
;
4044 else if (strcmp (argv
[i
], "-time") == 0)
4046 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4048 if (report_times_to_file
)
4049 fclose (report_times_to_file
);
4050 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4052 else if (strcmp (argv
[i
], "-pipe") == 0)
4054 /* -pipe has to go into the switches array as well as
4059 else if (strcmp (argv
[i
], "-wrapper") == 0)
4062 fatal ("argument to '-wrapper' is missing");
4064 wrapper_string
= argv
[i
];
4068 else if (strcmp (argv
[i
], "-###") == 0)
4070 /* This is similar to -v except that there is no execution
4071 of the commands and the echoed arguments are quoted. It
4072 is intended for use in shell scripts to capture the
4073 driver-generated command line. */
4074 verbose_only_flag
++;
4077 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4079 const char *p
= &argv
[i
][1];
4085 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
4090 fatal ("'-%c' must come at the start of the command line", c
);
4098 if (p
[1] == 0 && i
+ 1 == argc
)
4099 fatal ("argument to '-B' is missing");
4105 len
= strlen (value
);
4107 /* Catch the case where the user has forgotten to append a
4108 directory separator to the path. Note, they may be using
4109 -B to add an executable name prefix, eg "i386-elf-", in
4110 order to distinguish between multiple installations of
4111 GCC in the same directory. Hence we must check to see
4112 if appending a directory separator actually makes a
4113 valid directory name. */
4114 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4115 && is_directory (value
, false))
4117 char *tmp
= XNEWVEC (char, len
+ 2);
4118 strcpy (tmp
, value
);
4119 tmp
[len
] = DIR_SEPARATOR
;
4124 add_prefix (&exec_prefixes
, value
, NULL
,
4125 PREFIX_PRIORITY_B_OPT
, 0, 0);
4126 add_prefix (&startfile_prefixes
, value
, NULL
,
4127 PREFIX_PRIORITY_B_OPT
, 0, 0);
4128 add_prefix (&include_prefixes
, value
, NULL
,
4129 PREFIX_PRIORITY_B_OPT
, 0, 0);
4134 case 'v': /* Print our subcommands and print versions. */
4136 /* If they do anything other than exactly `-v', don't set
4137 verbose_flag; rather, continue on to give the error. */
4155 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4160 /* Forward scan, just in case -S or -c is specified
4167 if (argv
[j
][0] == '-')
4169 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4175 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4176 j
+= skip
- (argv
[j
][2] != 0);
4177 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4184 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4186 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4188 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4190 /* Save the output name in case -save-temps=obj was used. */
4191 if ((p
[1] == 0) && argv
[i
+ 1])
4192 save_temps_prefix
= xstrdup(argv
[i
+ 1]);
4194 save_temps_prefix
= xstrdup(argv
[i
] + 1);
4200 #ifdef MODIFY_TARGET_NAME
4201 is_modify_target_name
= 0;
4203 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4204 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4206 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4207 + strlen (spec_machine
));
4210 int made_addition
= 0;
4212 is_modify_target_name
= 1;
4213 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4215 if (modify_target
[j
].add_del
== DELETE
4216 && (! strncmp (q
, modify_target
[j
].str
,
4217 strlen (modify_target
[j
].str
))))
4218 p
+= strlen (modify_target
[j
].str
);
4219 else if (modify_target
[j
].add_del
== ADD
4220 && ! made_addition
&& *p
== '-')
4222 for (r
= modify_target
[j
].str
; *r
!= 0; )
4230 spec_machine
= new_name
;
4233 if (is_modify_target_name
)
4239 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4240 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4241 else if (WORD_SWITCH_TAKES_ARG (p
))
4242 i
+= WORD_SWITCH_TAKES_ARG (p
);
4252 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4253 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4254 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4256 save_temps_length
= strlen (save_temps_prefix
);
4257 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4260 save_temps_length
-= strlen (temp
);
4261 save_temps_prefix
[save_temps_length
] = '\0';
4265 else if (save_temps_prefix
!= NULL
)
4267 free (save_temps_prefix
);
4268 save_temps_prefix
= NULL
;
4271 if (save_temps_flag
&& use_pipes
)
4273 /* -save-temps overrides -pipe, so that temp files are produced */
4274 if (save_temps_flag
)
4275 error ("warning: -pipe ignored because -save-temps specified");
4281 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4283 if (gcd
&& gcd
[0] == '-')
4286 compare_debug_opt
= gcd
;
4289 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4292 compare_debug_opt
= "-gtoggle";
4296 else if (compare_debug
< 0)
4299 gcc_assert (!compare_debug_opt
);
4302 /* Set up the search paths. We add directories that we expect to
4303 contain GNU Toolchain components before directories specified by
4304 the machine description so that we will find GNU components (like
4305 the GNU assembler) before those of the host system. */
4307 /* If we don't know where the toolchain has been installed, use the
4308 configured-in locations. */
4309 if (!gcc_exec_prefix
)
4312 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4313 PREFIX_PRIORITY_LAST
, 1, 0);
4314 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4315 PREFIX_PRIORITY_LAST
, 2, 0);
4316 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4317 PREFIX_PRIORITY_LAST
, 2, 0);
4319 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4320 PREFIX_PRIORITY_LAST
, 1, 0);
4323 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4324 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4325 dir_separator_str
, NULL
);
4327 /* Look for tools relative to the location from which the driver is
4328 running, or, if that is not available, the configured prefix. */
4330 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4331 spec_machine
, dir_separator_str
,
4332 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4334 add_prefix (&exec_prefixes
,
4335 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4336 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4337 add_prefix (&startfile_prefixes
,
4338 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4339 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4341 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4342 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4343 then consider it to relocate with the rest of the GCC installation
4344 if GCC_EXEC_PREFIX is set.
4345 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4346 if (target_system_root
&& gcc_exec_prefix
)
4348 char *tmp_prefix
= get_relative_prefix (argv
[0],
4349 standard_bindir_prefix
,
4350 target_system_root
);
4351 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4353 target_system_root
= tmp_prefix
;
4354 target_system_root_changed
= 1;
4359 /* More prefixes are enabled in main, after we read the specs file
4360 and determine whether this is cross-compilation or not. */
4362 /* Then create the space for the vectors and scan again. */
4364 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4365 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4368 last_language_n_infiles
= -1;
4370 /* This, time, copy the text of each switch and store a pointer
4371 to the copy in the vector of switches.
4372 Store all the infiles in their vector. */
4374 for (i
= 1; i
< argc
; i
++)
4376 /* Just skip the switches that were handled by the preceding loop. */
4377 #ifdef MODIFY_TARGET_NAME
4378 is_modify_target_name
= 0;
4380 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4381 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4382 is_modify_target_name
= 1;
4384 if (is_modify_target_name
)
4388 if (! strncmp (argv
[i
], "-Wa,", 4))
4390 else if (! strncmp (argv
[i
], "-Wp,", 4))
4392 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4394 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4396 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4398 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4400 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4402 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4404 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4406 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4408 else if (! strcmp (argv
[i
], "-print-sysroot"))
4410 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4412 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4414 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4416 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4417 target_system_root_changed
= 1;
4419 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4421 /* Compensate for the +e options to the C++ front-end;
4422 they're there simply for cfront call-compatibility. We do
4423 some magic in default_compilers to pass them down properly.
4424 Note we deliberately start at the `+' here, to avoid passing
4425 -e0 or -e1 down into the linker. */
4426 switches
[n_switches
].part1
= &argv
[i
][0];
4427 switches
[n_switches
].args
= 0;
4428 switches
[n_switches
].live_cond
= 0;
4429 switches
[n_switches
].validated
= 0;
4432 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4435 /* Split the argument at commas. */
4437 for (j
= 4; argv
[i
][j
]; j
++)
4438 if (argv
[i
][j
] == ',')
4440 infiles
[n_infiles
].language
= "*";
4441 infiles
[n_infiles
++].name
4442 = save_string (argv
[i
] + prev
, j
- prev
);
4445 /* Record the part after the last comma. */
4446 infiles
[n_infiles
].language
= "*";
4447 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4449 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4451 infiles
[n_infiles
].language
= "*";
4452 infiles
[n_infiles
++].name
= argv
[++i
];
4454 /* Xassembler and Xpreprocessor were already handled in the first argv
4455 scan, so all we need to do here is ignore them and their argument. */
4456 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4458 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4460 else if (strcmp (argv
[i
], "-l") == 0)
4461 { /* POSIX allows separation of -l and the lib arg;
4462 canonicalize by concatenating -l with its arg */
4463 infiles
[n_infiles
].language
= "*";
4464 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4466 else if (strncmp (argv
[i
], "-l", 2) == 0)
4468 infiles
[n_infiles
].language
= "*";
4469 infiles
[n_infiles
++].name
= argv
[i
];
4471 else if (strcmp (argv
[i
], "-wrapper") == 0)
4473 else if (strcmp (argv
[i
], "-specs") == 0)
4475 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4477 else if (strcmp (argv
[i
], "-time") == 0)
4479 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4481 else if (strcmp (argv
[i
], "-###") == 0)
4483 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4485 const char *p
= &argv
[i
][1];
4490 if (p
[1] == 0 && i
+ 1 == argc
)
4491 fatal ("argument to '-x' is missing");
4493 spec_lang
= argv
[++i
];
4496 if (! strcmp (spec_lang
, "none"))
4497 /* Suppress the warning if -xnone comes after the last input
4498 file, because alternate command interfaces like g++ might
4499 find it useful to place -xnone after each input file. */
4502 last_language_n_infiles
= n_infiles
;
4505 switches
[n_switches
].part1
= p
;
4506 /* Deal with option arguments in separate argv elements. */
4507 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4508 || WORD_SWITCH_TAKES_ARG (p
))
4511 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4515 /* Count only the option arguments in separate argv elements. */
4516 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4518 if (i
+ n_args
>= argc
)
4519 fatal ("argument to '-%s' is missing", p
);
4520 switches
[n_switches
].args
4521 = XNEWVEC (const char *, n_args
+ 1);
4523 switches
[n_switches
].args
[j
++] = argv
[++i
];
4524 /* Null-terminate the vector. */
4525 switches
[n_switches
].args
[j
] = 0;
4527 else if (strchr (switches_need_spaces
, c
))
4529 /* On some systems, ld cannot handle some options without
4530 a space. So split the option from its argument. */
4531 char *part1
= XNEWVEC (char, 2);
4535 switches
[n_switches
].part1
= part1
;
4536 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4537 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4538 switches
[n_switches
].args
[1] = 0;
4541 switches
[n_switches
].args
= 0;
4543 switches
[n_switches
].live_cond
= 0;
4544 switches
[n_switches
].validated
= 0;
4545 switches
[n_switches
].ordering
= 0;
4546 /* These are always valid, since gcc.c itself understands the
4547 first four and gfortranspec.c understands -static-libgfortran. */
4548 if (!strcmp (p
, "save-temps")
4549 || !strcmp (p
, "static-libgcc")
4550 || !strcmp (p
, "shared-libgcc")
4551 || !strcmp (p
, "pipe")
4552 || !strcmp (p
, "static-libgfortran"))
4553 switches
[n_switches
].validated
= 1;
4556 char ch
= switches
[n_switches
].part1
[0];
4558 switches
[n_switches
].validated
= 1;
4564 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4565 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4568 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4570 perror_with_name (argv
[i
]);
4575 infiles
[n_infiles
].language
= spec_lang
;
4576 infiles
[n_infiles
++].name
= argv
[i
];
4581 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4582 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4584 if (compare_debug
== 2 || compare_debug
== 3)
4586 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4589 switches
[n_switches
].args
= 0;
4590 switches
[n_switches
].live_cond
= 0;
4591 switches
[n_switches
].validated
= 0;
4592 switches
[n_switches
].ordering
= 0;
4597 /* Ensure we only invoke each subprocess once. */
4598 if (print_subprocess_help
|| print_help_list
|| print_version
)
4602 /* Create a dummy input file, so that we can pass
4603 the help option on to the various sub-processes. */
4604 infiles
[0].language
= "c";
4605 infiles
[0].name
= "help-dummy";
4608 switches
[n_switches
].part1
= 0;
4609 infiles
[n_infiles
].name
= 0;
4612 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4613 and place that in the environment. */
4616 set_collect_gcc_options (void)
4621 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4623 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4624 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4627 for (i
= 0; (int) i
< n_switches
; i
++)
4629 const char *const *args
;
4632 obstack_grow (&collect_obstack
, " ", 1);
4636 /* Ignore elided switches. */
4637 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4640 obstack_grow (&collect_obstack
, "'-", 2);
4641 q
= switches
[i
].part1
;
4642 while ((p
= strchr (q
, '\'')))
4644 obstack_grow (&collect_obstack
, q
, p
- q
);
4645 obstack_grow (&collect_obstack
, "'\\''", 4);
4648 obstack_grow (&collect_obstack
, q
, strlen (q
));
4649 obstack_grow (&collect_obstack
, "'", 1);
4651 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4653 obstack_grow (&collect_obstack
, " '", 2);
4655 while ((p
= strchr (q
, '\'')))
4657 obstack_grow (&collect_obstack
, q
, p
- q
);
4658 obstack_grow (&collect_obstack
, "'\\''", 4);
4661 obstack_grow (&collect_obstack
, q
, strlen (q
));
4662 obstack_grow (&collect_obstack
, "'", 1);
4665 obstack_grow (&collect_obstack
, "\0", 1);
4666 xputenv (XOBFINISH (&collect_obstack
, char *));
4669 /* Process a spec string, accumulating and running commands. */
4671 /* These variables describe the input file name.
4672 input_file_number is the index on outfiles of this file,
4673 so that the output file name can be stored for later use by %o.
4674 input_basename is the start of the part of the input file
4675 sans all directory names, and basename_length is the number
4676 of characters starting there excluding the suffix .c or whatever. */
4678 static const char *input_filename
;
4679 static int input_file_number
;
4680 size_t input_filename_length
;
4681 static int basename_length
;
4682 static int suffixed_basename_length
;
4683 static const char *input_basename
;
4684 static const char *input_suffix
;
4685 #ifndef HOST_LACKS_INODE_NUMBERS
4686 static struct stat input_stat
;
4688 static int input_stat_set
;
4690 /* The compiler used to process the current input file. */
4691 static struct compiler
*input_file_compiler
;
4693 /* These are variables used within do_spec and do_spec_1. */
4695 /* Nonzero if an arg has been started and not yet terminated
4696 (with space, tab or newline). */
4697 static int arg_going
;
4699 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4700 is a temporary file name. */
4701 static int delete_this_arg
;
4703 /* Nonzero means %w has been seen; the next arg to be terminated
4704 is the output file name of this compilation. */
4705 static int this_is_output_file
;
4707 /* Nonzero means %s has been seen; the next arg to be terminated
4708 is the name of a library file and we should try the standard
4709 search dirs for it. */
4710 static int this_is_library_file
;
4712 /* Nonzero means %T has been seen; the next arg to be terminated
4713 is the name of a linker script and we should try all of the
4714 standard search dirs for it. If it is found insert a --script
4715 command line switch and then substitute the full path in place,
4716 otherwise generate an error message. */
4717 static int this_is_linker_script
;
4719 /* Nonzero means that the input of this command is coming from a pipe. */
4720 static int input_from_pipe
;
4722 /* Nonnull means substitute this for any suffix when outputting a switches
4724 static const char *suffix_subst
;
4726 /* If there is an argument being accumulated, terminate it and store it. */
4729 end_going_arg (void)
4735 obstack_1grow (&obstack
, 0);
4736 string
= XOBFINISH (&obstack
, const char *);
4737 if (this_is_library_file
)
4738 string
= find_file (string
);
4739 if (this_is_linker_script
)
4741 char * full_script_path
= find_a_file (&startfile_prefixes
, string
, R_OK
, true);
4743 if (full_script_path
== NULL
)
4745 error (_("unable to locate default linker script '%s' in the library search paths"), string
);
4746 /* Script was not found on search path. */
4749 store_arg ("--script", false, false);
4750 string
= full_script_path
;
4752 store_arg (string
, delete_this_arg
, this_is_output_file
);
4753 if (this_is_output_file
)
4754 outfiles
[input_file_number
] = string
;
4760 /* Parse the WRAPPER string which is a comma separated list of the command line
4761 and insert them into the beginning of argbuf. */
4764 insert_wrapper (const char *wrapper
)
4768 char *buf
= xstrdup (wrapper
);
4777 while ((p
= strchr (p
, ',')) != NULL
);
4779 if (argbuf_index
+ n
>= argbuf_length
)
4781 argbuf_length
= argbuf_length
* 2;
4782 while (argbuf_length
< argbuf_index
+ n
)
4784 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4786 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4787 argbuf
[i
+ n
] = argbuf
[i
];
4800 while ((p
= strchr (p
, ',')) != NULL
);
4801 gcc_assert (i
== n
);
4805 /* Process the spec SPEC and run the commands specified therein.
4806 Returns 0 if the spec is successfully processed; -1 if failed. */
4809 do_spec (const char *spec
)
4813 value
= do_spec_2 (spec
);
4815 /* Force out any unfinished command.
4816 If -pipe, this forces out the last command if it ended in `|'. */
4819 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4822 set_collect_gcc_options ();
4824 if (argbuf_index
> 0)
4832 do_spec_2 (const char *spec
)
4838 delete_this_arg
= 0;
4839 this_is_output_file
= 0;
4840 this_is_library_file
= 0;
4841 this_is_linker_script
= 0;
4842 input_from_pipe
= 0;
4843 suffix_subst
= NULL
;
4845 result
= do_spec_1 (spec
, 0, NULL
);
4853 /* Process the given spec string and add any new options to the end
4854 of the switches/n_switches array. */
4857 do_option_spec (const char *name
, const char *spec
)
4859 unsigned int i
, value_count
, value_len
;
4860 const char *p
, *q
, *value
;
4861 char *tmp_spec
, *tmp_spec_p
;
4863 if (configure_default_options
[0].name
== NULL
)
4866 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4867 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4869 if (i
== ARRAY_SIZE (configure_default_options
))
4872 value
= configure_default_options
[i
].value
;
4873 value_len
= strlen (value
);
4875 /* Compute the size of the final spec. */
4878 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4884 /* Replace each %(VALUE) by the specified value. */
4885 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4886 + value_count
* (value_len
- strlen ("%(VALUE)")));
4887 tmp_spec_p
= tmp_spec
;
4889 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4891 memcpy (tmp_spec_p
, q
, p
- q
);
4892 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4893 memcpy (tmp_spec_p
, value
, value_len
);
4894 tmp_spec_p
+= value_len
;
4895 q
= p
+ strlen ("%(VALUE)");
4897 strcpy (tmp_spec_p
, q
);
4899 do_self_spec (tmp_spec
);
4902 /* Process the given spec string and add any new options to the end
4903 of the switches/n_switches array. */
4906 do_self_spec (const char *spec
)
4909 do_spec_1 (" ", 0, NULL
);
4911 if (argbuf_index
> 0)
4915 switches
= XRESIZEVEC (struct switchstr
, switches
,
4916 n_switches
+ argbuf_index
+ 1);
4918 for (i
= 0; i
< argbuf_index
; i
++)
4920 struct switchstr
*sw
;
4921 const char *p
= argbuf
[i
];
4924 /* Each switch should start with '-'. */
4926 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4931 sw
= &switches
[n_switches
++];
4937 /* Deal with option arguments in separate argv elements. */
4938 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4939 || WORD_SWITCH_TAKES_ARG (p
))
4942 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4946 /* Count only the option arguments in separate argv elements. */
4947 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4949 if (i
+ n_args
>= argbuf_index
)
4950 fatal ("argument to '-%s' is missing", p
);
4952 = XNEWVEC (const char *, n_args
+ 1);
4954 sw
->args
[j
++] = argbuf
[++i
];
4955 /* Null-terminate the vector. */
4958 else if (strchr (switches_need_spaces
, c
))
4960 /* On some systems, ld cannot handle some options without
4961 a space. So split the option from its argument. */
4962 char *part1
= XNEWVEC (char, 2);
4967 sw
->args
= XNEWVEC (const char *, 2);
4968 sw
->args
[0] = xstrdup (p
+1);
4975 switches
[n_switches
].part1
= 0;
4979 /* Callback for processing %D and %I specs. */
4981 struct spec_path_info
{
4986 bool separate_options
;
4990 spec_path (char *path
, void *data
)
4992 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4996 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4999 if (info
->append_len
!= 0)
5001 len
= strlen (path
);
5002 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
5005 if (!is_directory (path
, true))
5008 do_spec_1 (info
->option
, 1, NULL
);
5009 if (info
->separate_options
)
5010 do_spec_1 (" ", 0, NULL
);
5012 if (info
->append_len
== 0)
5014 len
= strlen (path
);
5015 save
= path
[len
- 1];
5016 if (IS_DIR_SEPARATOR (path
[len
- 1]))
5017 path
[len
- 1] = '\0';
5020 do_spec_1 (path
, 1, NULL
);
5021 do_spec_1 (" ", 0, NULL
);
5023 /* Must not damage the original path. */
5024 if (info
->append_len
== 0)
5025 path
[len
- 1] = save
;
5030 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
5034 create_at_file (char **argv
)
5036 char *temp_file
= make_temp_file ("");
5037 char *at_argument
= concat ("@", temp_file
, NULL
);
5038 FILE *f
= fopen (temp_file
, "w");
5042 fatal ("could not open temporary response file %s",
5045 status
= writeargv (argv
, f
);
5048 fatal ("could not write to temporary response file %s",
5051 status
= fclose (f
);
5054 fatal ("could not close temporary response file %s",
5057 store_arg (at_argument
, 0, 0);
5059 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5062 /* True if we should compile INFILE. */
5065 compile_input_file_p (struct infile
*infile
)
5067 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5068 if (infile
->incompiler
== input_file_compiler
)
5073 /* Process the sub-spec SPEC as a portion of a larger spec.
5074 This is like processing a whole spec except that we do
5075 not initialize at the beginning and we do not supply a
5076 newline by default at the end.
5077 INSWITCH nonzero means don't process %-sequences in SPEC;
5078 in this case, % is treated as an ordinary character.
5079 This is used while substituting switches.
5080 INSWITCH nonzero also causes SPC not to terminate an argument.
5082 Value is zero unless a line was finished
5083 and the command on that line reported an error. */
5086 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5088 const char *p
= spec
;
5094 /* If substituting a switch, treat all chars like letters.
5095 Otherwise, NL, SPC, TAB and % are special. */
5096 switch (inswitch
? 'a' : c
)
5101 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5103 /* A `|' before the newline means use a pipe here,
5104 but only if -pipe was specified.
5105 Otherwise, execute now and don't pass the `|' as an arg. */
5108 input_from_pipe
= 1;
5115 set_collect_gcc_options ();
5117 if (argbuf_index
> 0)
5123 /* Reinitialize for a new command, and for a new argument. */
5126 delete_this_arg
= 0;
5127 this_is_output_file
= 0;
5128 this_is_library_file
= 0;
5129 this_is_linker_script
= 0;
5130 input_from_pipe
= 0;
5137 obstack_1grow (&obstack
, c
);
5145 /* Reinitialize for a new argument. */
5146 delete_this_arg
= 0;
5147 this_is_output_file
= 0;
5148 this_is_library_file
= 0;
5149 this_is_linker_script
= 0;
5156 fatal ("spec '%s' invalid", spec
);
5159 if (save_temps_length
)
5160 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5162 obstack_grow (&obstack
, input_basename
, basename_length
);
5163 if (compare_debug
< 0)
5164 obstack_grow (&obstack
, ".gk", 3);
5169 if (save_temps_length
)
5170 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5172 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5173 if (compare_debug
< 0)
5174 obstack_grow (&obstack
, ".gk", 3);
5179 delete_this_arg
= 2;
5182 /* Dump out the directories specified with LIBRARY_PATH,
5183 followed by the absolute directories
5184 that we search for startfiles. */
5187 struct spec_path_info info
;
5190 info
.append_len
= 0;
5191 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5192 /* Used on systems which record the specified -L dirs
5193 and use them to search for dynamic linking.
5194 Relative directories always come from -B,
5195 and it is better not to use them for searching
5196 at run time. In particular, stage1 loses. */
5197 info
.omit_relative
= true;
5199 info
.omit_relative
= false;
5201 info
.separate_options
= false;
5203 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5208 /* %efoo means report an error with `foo' as error message
5209 and don't execute any more commands for this file. */
5213 while (*p
!= 0 && *p
!= '\n')
5215 buf
= (char *) alloca (p
- q
+ 1);
5216 strncpy (buf
, q
, p
- q
);
5223 /* %nfoo means report a notice with `foo' on stderr. */
5227 while (*p
!= 0 && *p
!= '\n')
5229 buf
= (char *) alloca (p
- q
+ 1);
5230 strncpy (buf
, q
, p
- q
);
5232 notice ("%s\n", buf
);
5242 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5243 defined, and it is not a directory, and it is
5244 writable, use it. Otherwise, treat this like any
5245 other temporary file. */
5247 if ((!save_temps_flag
)
5248 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5249 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5251 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5252 strlen (HOST_BIT_BUCKET
));
5253 delete_this_arg
= 0;
5258 goto create_temp_file
;
5262 obstack_1grow (&obstack
, '-');
5263 delete_this_arg
= 0;
5266 /* consume suffix */
5267 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5269 if (p
[0] == '%' && p
[1] == 'O')
5274 goto create_temp_file
;
5278 /* consume suffix */
5279 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5281 if (p
[0] == '%' && p
[1] == 'O')
5286 goto create_temp_file
;
5292 struct temp_name
*t
;
5294 const char *suffix
= p
;
5295 char *saved_suffix
= NULL
;
5297 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5299 suffix_length
= p
- suffix
;
5300 if (p
[0] == '%' && p
[1] == 'O')
5303 /* We don't support extra suffix characters after %O. */
5304 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5305 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5306 if (suffix_length
== 0)
5307 suffix
= TARGET_OBJECT_SUFFIX
;
5311 = XNEWVEC (char, suffix_length
5312 + strlen (TARGET_OBJECT_SUFFIX
));
5313 strncpy (saved_suffix
, suffix
, suffix_length
);
5314 strcpy (saved_suffix
+ suffix_length
,
5315 TARGET_OBJECT_SUFFIX
);
5317 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5320 if (compare_debug
< 0)
5322 suffix
= concat (".gk", suffix
, NULL
);
5326 /* If -save-temps=obj and -o were specified, use that for the
5328 if (save_temps_length
)
5331 temp_filename_length
5332 = save_temps_length
+ suffix_length
+ 1;
5333 tmp
= (char *) alloca (temp_filename_length
);
5334 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5335 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5336 tmp
[save_temps_length
+ suffix_length
] = '\0';
5337 temp_filename
= save_string (tmp
,
5338 temp_filename_length
+ 1);
5339 obstack_grow (&obstack
, temp_filename
,
5340 temp_filename_length
);
5342 delete_this_arg
= 0;
5346 /* If the input_filename has the same suffix specified
5347 for the %g, %u, or %U, and -save-temps is specified,
5348 we could end up using that file as an intermediate
5349 thus clobbering the user's source file (.e.g.,
5350 gcc -save-temps foo.s would clobber foo.s with the
5351 output of cpp0). So check for this condition and
5352 generate a temp file as the intermediate. */
5354 if (save_temps_flag
)
5357 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5358 tmp
= (char *) alloca (temp_filename_length
);
5359 memcpy (tmp
, input_basename
, basename_length
);
5360 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5361 tmp
[basename_length
+ suffix_length
] = '\0';
5362 temp_filename
= tmp
;
5364 if (strcmp (temp_filename
, input_filename
) != 0)
5366 #ifndef HOST_LACKS_INODE_NUMBERS
5367 struct stat st_temp
;
5369 /* Note, set_input() resets input_stat_set to 0. */
5370 if (input_stat_set
== 0)
5372 input_stat_set
= stat (input_filename
, &input_stat
);
5373 if (input_stat_set
>= 0)
5377 /* If we have the stat for the input_filename
5378 and we can do the stat for the temp_filename
5379 then the they could still refer to the same
5380 file if st_dev/st_ino's are the same. */
5381 if (input_stat_set
!= 1
5382 || stat (temp_filename
, &st_temp
) < 0
5383 || input_stat
.st_dev
!= st_temp
.st_dev
5384 || input_stat
.st_ino
!= st_temp
.st_ino
)
5386 /* Just compare canonical pathnames. */
5387 char* input_realname
= lrealpath (input_filename
);
5388 char* temp_realname
= lrealpath (temp_filename
);
5389 bool files_differ
= strcmp (input_realname
, temp_realname
);
5390 free (input_realname
);
5391 free (temp_realname
);
5395 temp_filename
= save_string (temp_filename
,
5396 temp_filename_length
+ 1);
5397 obstack_grow (&obstack
, temp_filename
,
5398 temp_filename_length
);
5400 delete_this_arg
= 0;
5406 /* See if we already have an association of %g/%u/%U and
5408 for (t
= temp_names
; t
; t
= t
->next
)
5409 if (t
->length
== suffix_length
5410 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5411 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5414 /* Make a new association if needed. %u and %j
5416 if (t
== 0 || c
== 'u' || c
== 'j')
5420 t
= XNEW (struct temp_name
);
5421 t
->next
= temp_names
;
5424 t
->length
= suffix_length
;
5427 t
->suffix
= saved_suffix
;
5428 saved_suffix
= NULL
;
5431 t
->suffix
= save_string (suffix
, suffix_length
);
5432 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5433 temp_filename
= make_temp_file (t
->suffix
);
5434 temp_filename_length
= strlen (temp_filename
);
5435 t
->filename
= temp_filename
;
5436 t
->filename_length
= temp_filename_length
;
5440 free (saved_suffix
);
5442 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5443 delete_this_arg
= 1;
5451 if (at_file_supplied
)
5453 /* We are going to expand `%i' to `@FILE', where FILE
5454 is a newly-created temporary filename. The filenames
5455 that would usually be expanded in place of %o will be
5456 written to the temporary file. */
5461 for (i
= 0; i
< n_infiles
; i
++)
5462 if (compile_input_file_p (&infiles
[i
]))
5465 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5467 /* Copy the strings over. */
5468 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5469 if (compile_input_file_p (&infiles
[i
]))
5471 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5472 infiles
[i
].compiled
= true;
5477 create_at_file (argv
);
5480 for (i
= 0; (int) i
< n_infiles
; i
++)
5481 if (compile_input_file_p (&infiles
[i
]))
5483 store_arg (infiles
[i
].name
, 0, 0);
5484 infiles
[i
].compiled
= true;
5489 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5496 struct spec_path_info info
;
5500 do_spec_1 ("-imultilib", 1, NULL
);
5501 /* Make this a separate argument. */
5502 do_spec_1 (" ", 0, NULL
);
5503 do_spec_1 (multilib_dir
, 1, NULL
);
5504 do_spec_1 (" ", 0, NULL
);
5507 if (gcc_exec_prefix
)
5509 do_spec_1 ("-iprefix", 1, NULL
);
5510 /* Make this a separate argument. */
5511 do_spec_1 (" ", 0, NULL
);
5512 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5513 do_spec_1 (" ", 0, NULL
);
5516 if (target_system_root_changed
||
5517 (target_system_root
&& target_sysroot_hdrs_suffix
))
5519 do_spec_1 ("-isysroot", 1, NULL
);
5520 /* Make this a separate argument. */
5521 do_spec_1 (" ", 0, NULL
);
5522 do_spec_1 (target_system_root
, 1, NULL
);
5523 if (target_sysroot_hdrs_suffix
)
5524 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5525 do_spec_1 (" ", 0, NULL
);
5528 info
.option
= "-isystem";
5529 info
.append
= "include";
5530 info
.append_len
= strlen (info
.append
);
5531 info
.omit_relative
= false;
5532 info
.separate_options
= true;
5534 for_each_path (&include_prefixes
, false, info
.append_len
,
5537 info
.append
= "include-fixed";
5538 if (*sysroot_hdrs_suffix_spec
)
5539 info
.append
= concat (info
.append
, dir_separator_str
,
5540 multilib_dir
, NULL
);
5541 info
.append_len
= strlen (info
.append
);
5542 for_each_path (&include_prefixes
, false, info
.append_len
,
5549 int max
= n_infiles
;
5550 max
+= lang_specific_extra_outfiles
;
5552 if (HAVE_GNU_LD
&& at_file_supplied
)
5554 /* We are going to expand `%o' to `@FILE', where FILE
5555 is a newly-created temporary filename. The filenames
5556 that would usually be expanded in place of %o will be
5557 written to the temporary file. */
5562 /* Convert OUTFILES into a form suitable for writeargv. */
5564 /* Determine how many are non-NULL. */
5565 for (n_files
= 0, i
= 0; i
< max
; i
++)
5566 n_files
+= outfiles
[i
] != NULL
;
5568 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5570 /* Copy the strings over. */
5571 for (i
= 0, j
= 0; i
< max
; i
++)
5574 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5579 create_at_file (argv
);
5582 for (i
= 0; i
< max
; i
++)
5584 store_arg (outfiles
[i
], 0, 0);
5589 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5594 this_is_library_file
= 1;
5598 this_is_linker_script
= 1;
5602 outfiles
[input_file_number
] = NULL
;
5606 this_is_output_file
= 1;
5611 int cur_index
= argbuf_index
;
5612 /* Handle the {...} following the %W. */
5614 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5615 p
= handle_braces (p
+ 1);
5619 /* If any args were output, mark the last one for deletion
5621 if (argbuf_index
!= cur_index
)
5622 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5626 /* %x{OPTION} records OPTION for %X to output. */
5632 /* Skip past the option value and make a copy. */
5634 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5637 string
= save_string (p1
+ 1, p
- p1
- 2);
5639 /* See if we already recorded this option. */
5640 for (i
= 0; i
< n_linker_options
; i
++)
5641 if (! strcmp (string
, linker_options
[i
]))
5647 /* This option is new; add it. */
5648 add_linker_option (string
, strlen (string
));
5652 /* Dump out the options accumulated previously using %x. */
5654 for (i
= 0; i
< n_linker_options
; i
++)
5656 do_spec_1 (linker_options
[i
], 1, NULL
);
5657 /* Make each accumulated option a separate argument. */
5658 do_spec_1 (" ", 0, NULL
);
5662 /* Dump out the options accumulated previously using -Wa,. */
5664 for (i
= 0; i
< n_assembler_options
; i
++)
5666 do_spec_1 (assembler_options
[i
], 1, NULL
);
5667 /* Make each accumulated option a separate argument. */
5668 do_spec_1 (" ", 0, NULL
);
5672 /* Dump out the options accumulated previously using -Wp,. */
5674 for (i
= 0; i
< n_preprocessor_options
; i
++)
5676 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5677 /* Make each accumulated option a separate argument. */
5678 do_spec_1 (" ", 0, NULL
);
5682 /* Here are digits and numbers that just process
5683 a certain constant string as a spec. */
5686 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5692 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5698 value
= do_spec_1 (asm_spec
, 0, NULL
);
5704 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5711 const char *const spec
5712 = (input_file_compiler
->cpp_spec
5713 ? input_file_compiler
->cpp_spec
5715 value
= do_spec_1 (spec
, 0, NULL
);
5722 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5728 value
= do_spec_1 (link_spec
, 0, NULL
);
5734 value
= do_spec_1 (lib_spec
, 0, NULL
);
5740 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5746 /* We assume there is a directory
5747 separator at the end of this string. */
5748 if (target_system_root
)
5750 obstack_grow (&obstack
, target_system_root
,
5751 strlen (target_system_root
));
5752 if (target_sysroot_suffix
)
5753 obstack_grow (&obstack
, target_sysroot_suffix
,
5754 strlen (target_sysroot_suffix
));
5759 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5764 /* Here we define characters other than letters and digits. */
5767 p
= handle_braces (p
);
5773 p
= handle_spec_function (p
);
5779 obstack_1grow (&obstack
, '%');
5786 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5788 suffix_subst
= save_string (p
- 1, len
+ 1);
5793 /* Henceforth ignore the option(s) matching the pattern
5798 int have_wildcard
= 0;
5801 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5804 if (p
[len
-1] == '*')
5807 for (i
= 0; i
< n_switches
; i
++)
5808 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5809 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5811 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5812 switches
[i
].validated
= 1;
5820 if (soft_matched_part
)
5822 do_spec_1 (soft_matched_part
, 1, NULL
);
5823 do_spec_1 (" ", 0, NULL
);
5826 /* Catch the case where a spec string contains something like
5827 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5828 hand side of the :. */
5829 error ("spec failure: '%%*' has not been initialized by pattern match");
5832 /* Process a string found as the value of a spec given by name.
5833 This feature allows individual machine descriptions
5834 to add and use their own specs.
5835 %[...] modifies -D options the way %P does;
5836 %(...) uses the spec unmodified. */
5838 error ("warning: use of obsolete %%[ operator in specs");
5841 const char *name
= p
;
5842 struct spec_list
*sl
;
5845 /* The string after the S/P is the name of a spec that is to be
5847 while (*p
&& *p
!= ')' && *p
!= ']')
5850 /* See if it's in the list. */
5851 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5852 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5854 name
= *(sl
->ptr_spec
);
5856 notice ("Processing spec %c%s%c, which is '%s'\n",
5857 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5866 value
= do_spec_1 (name
, 0, NULL
);
5872 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5874 const char *y
= name
;
5877 /* Copy all of NAME into BUF, but put __ after
5878 every -D and at the end of each arg. */
5881 if (! strncmp (y
, "-D", 2))
5892 && (*y
== ' ' || *y
== '\t' || *y
== '='
5893 || *y
== '}' || *y
== 0))
5906 value
= do_spec_1 (buf
, 0, NULL
);
5912 /* Discard the closing paren or bracket. */
5919 error ("spec failure: unrecognized spec option '%c'", c
);
5925 /* Backslash: treat next character as ordinary. */
5930 /* Ordinary character: put it into the current argument. */
5931 obstack_1grow (&obstack
, c
);
5935 /* End of string. If we are processing a spec function, we need to
5936 end any pending argument. */
5937 if (processing_spec_function
)
5943 /* Look up a spec function. */
5945 static const struct spec_function
*
5946 lookup_spec_function (const char *name
)
5948 const struct spec_function
*sf
;
5950 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5951 if (strcmp (sf
->name
, name
) == 0)
5957 /* Evaluate a spec function. */
5960 eval_spec_function (const char *func
, const char *args
)
5962 const struct spec_function
*sf
;
5963 const char *funcval
;
5965 /* Saved spec processing context. */
5966 int save_argbuf_index
;
5967 int save_argbuf_length
;
5968 const char **save_argbuf
;
5971 int save_delete_this_arg
;
5972 int save_this_is_output_file
;
5973 int save_this_is_library_file
;
5974 int save_input_from_pipe
;
5975 int save_this_is_linker_script
;
5976 const char *save_suffix_subst
;
5979 sf
= lookup_spec_function (func
);
5981 fatal ("unknown spec function '%s'", func
);
5983 /* Push the spec processing context. */
5984 save_argbuf_index
= argbuf_index
;
5985 save_argbuf_length
= argbuf_length
;
5986 save_argbuf
= argbuf
;
5988 save_arg_going
= arg_going
;
5989 save_delete_this_arg
= delete_this_arg
;
5990 save_this_is_output_file
= this_is_output_file
;
5991 save_this_is_library_file
= this_is_library_file
;
5992 save_this_is_linker_script
= this_is_linker_script
;
5993 save_input_from_pipe
= input_from_pipe
;
5994 save_suffix_subst
= suffix_subst
;
5996 /* Create a new spec processing context, and build the function
6000 if (do_spec_2 (args
) < 0)
6001 fatal ("error in args to spec function '%s'", func
);
6003 /* argbuf_index is an index for the next argument to be inserted, and
6004 so contains the count of the args already inserted. */
6006 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
6008 /* Pop the spec processing context. */
6009 argbuf_index
= save_argbuf_index
;
6010 argbuf_length
= save_argbuf_length
;
6012 argbuf
= save_argbuf
;
6014 arg_going
= save_arg_going
;
6015 delete_this_arg
= save_delete_this_arg
;
6016 this_is_output_file
= save_this_is_output_file
;
6017 this_is_library_file
= save_this_is_library_file
;
6018 this_is_linker_script
= save_this_is_linker_script
;
6019 input_from_pipe
= save_input_from_pipe
;
6020 suffix_subst
= save_suffix_subst
;
6025 /* Handle a spec function call of the form:
6029 ARGS is processed as a spec in a separate context and split into an
6030 argument vector in the normal fashion. The function returns a string
6031 containing a spec which we then process in the caller's context, or
6032 NULL if no processing is required. */
6035 handle_spec_function (const char *p
)
6038 const char *endp
, *funcval
;
6041 processing_spec_function
++;
6043 /* Get the function name. */
6044 for (endp
= p
; *endp
!= '\0'; endp
++)
6046 if (*endp
== '(') /* ) */
6048 /* Only allow [A-Za-z0-9], -, and _ in function names. */
6049 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
6050 fatal ("malformed spec function name");
6052 if (*endp
!= '(') /* ) */
6053 fatal ("no arguments for spec function");
6054 func
= save_string (p
, endp
- p
);
6057 /* Get the arguments. */
6058 for (count
= 0; *endp
!= '\0'; endp
++)
6067 else if (*endp
== '(') /* ) */
6072 fatal ("malformed spec function arguments");
6073 args
= save_string (p
, endp
- p
);
6076 /* p now points to just past the end of the spec function expression. */
6078 funcval
= eval_spec_function (func
, args
);
6079 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6085 processing_spec_function
--;
6090 /* Inline subroutine of handle_braces. Returns true if the current
6091 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6093 input_suffix_matches (const char *atom
, const char *end_atom
)
6095 return (input_suffix
6096 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6097 && input_suffix
[end_atom
- atom
] == '\0');
6100 /* Subroutine of handle_braces. Returns true if the current
6101 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6103 input_spec_matches (const char *atom
, const char *end_atom
)
6105 return (input_file_compiler
6106 && input_file_compiler
->suffix
6107 && input_file_compiler
->suffix
[0] != '\0'
6108 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6110 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6113 /* Subroutine of handle_braces. Returns true if a switch
6114 matching the atom bracketed by ATOM and END_ATOM appeared on the
6117 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6120 int len
= end_atom
- atom
;
6121 int plen
= starred
? len
: -1;
6123 for (i
= 0; i
< n_switches
; i
++)
6124 if (!strncmp (switches
[i
].part1
, atom
, len
)
6125 && (starred
|| switches
[i
].part1
[len
] == '\0')
6126 && check_live_switch (i
, plen
))
6132 /* Inline subroutine of handle_braces. Mark all of the switches which
6133 match ATOM (extends to END_ATOM; STARRED indicates whether there
6134 was a star after the atom) for later processing. */
6136 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6139 int len
= end_atom
- atom
;
6140 int plen
= starred
? len
: -1;
6142 for (i
= 0; i
< n_switches
; i
++)
6143 if (!strncmp (switches
[i
].part1
, atom
, len
)
6144 && (starred
|| switches
[i
].part1
[len
] == '\0')
6145 && check_live_switch (i
, plen
))
6146 switches
[i
].ordering
= 1;
6149 /* Inline subroutine of handle_braces. Process all the currently
6150 marked switches through give_switch, and clear the marks. */
6152 process_marked_switches (void)
6156 for (i
= 0; i
< n_switches
; i
++)
6157 if (switches
[i
].ordering
== 1)
6159 switches
[i
].ordering
= 0;
6164 /* Handle a %{ ... } construct. P points just inside the leading {.
6165 Returns a pointer one past the end of the brace block, or 0
6166 if we call do_spec_1 and that returns -1. */
6169 handle_braces (const char *p
)
6171 const char *atom
, *end_atom
;
6172 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6173 const char *orig
= p
;
6181 bool a_must_be_last
= false;
6182 bool ordered_set
= false;
6183 bool disjunct_set
= false;
6184 bool disj_matched
= false;
6185 bool disj_starred
= true;
6186 bool n_way_choice
= false;
6187 bool n_way_matched
= false;
6189 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6196 /* Scan one "atom" (S in the description above of %{}, possibly
6197 with '!', '.', '@', ',', or '*' modifiers). */
6199 a_is_suffix
= false;
6200 a_is_starred
= false;
6201 a_is_negated
= false;
6202 a_is_spectype
= false;
6206 p
++, a_is_negated
= true;
6210 p
++, a_is_suffix
= true;
6212 p
++, a_is_spectype
= true;
6215 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6216 || *p
== ',' || *p
== '.' || *p
== '@')
6221 p
++, a_is_starred
= 1;
6227 /* Substitute the switch(es) indicated by the current atom. */
6229 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6230 || a_is_spectype
|| atom
== end_atom
)
6233 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6236 process_marked_switches ();
6240 /* Substitute some text if the current atom appears as a switch
6242 disjunct_set
= true;
6246 if (atom
== end_atom
)
6248 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6249 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6253 /* An empty term may appear as the last choice of an
6254 N-way choice set; it means "otherwise". */
6255 a_must_be_last
= true;
6256 disj_matched
= !n_way_matched
;
6257 disj_starred
= false;
6261 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6265 disj_starred
= false;
6267 /* Don't bother testing this atom if we already have a
6269 if (!disj_matched
&& !n_way_matched
)
6272 a_matched
= input_suffix_matches (atom
, end_atom
);
6273 else if (a_is_spectype
)
6274 a_matched
= input_spec_matches (atom
, end_atom
);
6276 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6278 if (a_matched
!= a_is_negated
)
6280 disj_matched
= true;
6282 d_end_atom
= end_atom
;
6289 /* Found the body, that is, the text to substitute if the
6290 current disjunction matches. */
6291 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6292 disj_matched
&& !n_way_matched
);
6296 /* If we have an N-way choice, reset state for the next
6300 n_way_choice
= true;
6301 n_way_matched
|= disj_matched
;
6302 disj_matched
= false;
6303 disj_starred
= true;
6304 d_atom
= d_end_atom
= NULL
;
6313 while (*p
++ != '}');
6318 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6323 /* Subroutine of handle_braces. Scan and process a brace substitution body
6324 (X in the description of %{} syntax). P points one past the colon;
6325 ATOM and END_ATOM bracket the first atom which was found to be true
6326 (present) in the current disjunction; STARRED indicates whether all
6327 the atoms in the current disjunction were starred (for syntax validation);
6328 MATCHED indicates whether the disjunction matched or not, and therefore
6329 whether or not the body is to be processed through do_spec_1 or just
6330 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6334 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6335 int starred
, int matched
)
6337 const char *body
, *end_body
;
6338 unsigned int nesting_level
;
6339 bool have_subst
= false;
6341 /* Locate the closing } or ;, honoring nested braces.
6342 Trim trailing whitespace. */
6351 if (!--nesting_level
)
6354 else if (*p
== ';' && nesting_level
== 1)
6356 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6358 else if (*p
== '\0')
6364 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6367 if (have_subst
&& !starred
)
6372 /* Copy the substitution body to permanent storage and execute it.
6373 If have_subst is false, this is a simple matter of running the
6374 body through do_spec_1... */
6375 char *string
= save_string (body
, end_body
- body
);
6378 if (do_spec_1 (string
, 0, NULL
) < 0)
6383 /* ... but if have_subst is true, we have to process the
6384 body once for each matching switch, with %* set to the
6385 variant part of the switch. */
6386 unsigned int hard_match_len
= end_atom
- atom
;
6389 for (i
= 0; i
< n_switches
; i
++)
6390 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6391 && check_live_switch (i
, hard_match_len
))
6393 if (do_spec_1 (string
, 0,
6394 &switches
[i
].part1
[hard_match_len
]) < 0)
6396 /* Pass any arguments this switch has. */
6398 suffix_subst
= NULL
;
6406 fatal ("braced spec body '%s' is invalid", body
);
6409 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6410 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6411 spec, or -1 if either exact match or %* is used.
6413 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6414 whose value does not begin with "no-" is obsoleted by the same value
6415 with the "no-", similarly for a switch with the "no-" prefix. */
6418 check_live_switch (int switchnum
, int prefix_length
)
6420 const char *name
= switches
[switchnum
].part1
;
6423 /* If we already processed this switch and determined if it was
6424 live or not, return our past determination. */
6425 if (switches
[switchnum
].live_cond
!= 0)
6426 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6427 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6428 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE
) == 0);
6430 /* In the common case of {<at-most-one-letter>*}, a negating
6431 switch would always match, so ignore that case. We will just
6432 send the conflicting switches to the compiler phase. */
6433 if (prefix_length
>= 0 && prefix_length
<= 1)
6436 /* Now search for duplicate in a manner that depends on the name. */
6440 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6441 if (switches
[i
].part1
[0] == 'O')
6443 switches
[switchnum
].validated
= 1;
6444 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6449 case 'W': case 'f': case 'm':
6450 if (! strncmp (name
+ 1, "no-", 3))
6452 /* We have Xno-YYY, search for XYYY. */
6453 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6454 if (switches
[i
].part1
[0] == name
[0]
6455 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6457 switches
[switchnum
].validated
= 1;
6458 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6464 /* We have XYYY, search for Xno-YYY. */
6465 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6466 if (switches
[i
].part1
[0] == name
[0]
6467 && switches
[i
].part1
[1] == 'n'
6468 && switches
[i
].part1
[2] == 'o'
6469 && switches
[i
].part1
[3] == '-'
6470 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6472 switches
[switchnum
].validated
= 1;
6473 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6480 /* Otherwise the switch is live. */
6481 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6485 /* Pass a switch to the current accumulating command
6486 in the same form that we received it.
6487 SWITCHNUM identifies the switch; it is an index into
6488 the vector of switches gcc received, which is `switches'.
6489 This cannot fail since it never finishes a command line.
6491 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6494 give_switch (int switchnum
, int omit_first_word
)
6496 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6499 if (!omit_first_word
)
6501 do_spec_1 ("-", 0, NULL
);
6502 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6505 if (switches
[switchnum
].args
!= 0)
6508 for (p
= switches
[switchnum
].args
; *p
; p
++)
6510 const char *arg
= *p
;
6512 do_spec_1 (" ", 0, NULL
);
6515 unsigned length
= strlen (arg
);
6518 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6519 if (arg
[length
] == '.')
6521 (CONST_CAST(char *, arg
))[length
] = 0;
6525 do_spec_1 (arg
, 1, NULL
);
6527 (CONST_CAST(char *, arg
))[length
] = '.';
6528 do_spec_1 (suffix_subst
, 1, NULL
);
6531 do_spec_1 (arg
, 1, NULL
);
6535 do_spec_1 (" ", 0, NULL
);
6536 switches
[switchnum
].validated
= 1;
6539 /* Search for a file named NAME trying various prefixes including the
6540 user's -B prefix and some standard ones.
6541 Return the absolute file name found. If nothing is found, return NAME. */
6544 find_file (const char *name
)
6546 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6547 return newname
? newname
: name
;
6550 /* Determine whether a directory exists. If LINKER, return 0 for
6551 certain fixed names not needed by the linker. */
6554 is_directory (const char *path1
, bool linker
)
6561 /* Ensure the string ends with "/.". The resulting path will be a
6562 directory even if the given path is a symbolic link. */
6563 len1
= strlen (path1
);
6564 path
= (char *) alloca (3 + len1
);
6565 memcpy (path
, path1
, len1
);
6567 if (!IS_DIR_SEPARATOR (cp
[-1]))
6568 *cp
++ = DIR_SEPARATOR
;
6572 /* Exclude directories that the linker is known to search. */
6574 && IS_DIR_SEPARATOR (path
[0])
6576 && strncmp (path
+ 1, "lib", 3) == 0)
6578 && strncmp (path
+ 1, "usr", 3) == 0
6579 && IS_DIR_SEPARATOR (path
[4])
6580 && strncmp (path
+ 5, "lib", 3) == 0)))
6583 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6586 /* Set up the various global variables to indicate that we're processing
6587 the input file named FILENAME. */
6590 set_input (const char *filename
)
6594 input_filename
= filename
;
6595 input_filename_length
= strlen (input_filename
);
6596 input_basename
= lbasename (input_filename
);
6598 /* Find a suffix starting with the last period,
6599 and set basename_length to exclude that suffix. */
6600 basename_length
= strlen (input_basename
);
6601 suffixed_basename_length
= basename_length
;
6602 p
= input_basename
+ basename_length
;
6603 while (p
!= input_basename
&& *p
!= '.')
6605 if (*p
== '.' && p
!= input_basename
)
6607 basename_length
= p
- input_basename
;
6608 input_suffix
= p
+ 1;
6613 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6614 we will need to do a stat on the input_filename. The
6615 INPUT_STAT_SET signals that the stat is needed. */
6619 /* On fatal signals, delete all the temporary files. */
6622 fatal_error (int signum
)
6624 signal (signum
, SIG_DFL
);
6625 delete_failure_queue ();
6626 delete_temp_files ();
6627 /* Get the same signal again, this time not handled,
6628 so its normal effect occurs. */
6629 kill (getpid (), signum
);
6632 /* Compare the contents of the two files named CMPFILE[0] and
6633 CMPFILE[1]. Return zero if they're identical, nonzero
6637 compare_files (char *cmpfile
[])
6640 FILE *temp
[2] = { NULL
, NULL
};
6646 void *map
[2] = { NULL
, NULL
};
6648 for (i
= 0; i
< 2; i
++)
6652 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6654 error ("%s: could not determine length of compare-debug file %s",
6655 input_filename
, cmpfile
[i
]);
6660 length
[i
] = st
.st_size
;
6663 if (!ret
&& length
[0] != length
[1])
6665 error ("%s: -fcompare-debug failure (length)", input_filename
);
6670 for (i
= 0; i
< 2; i
++)
6672 int fd
= open (cmpfile
[i
], O_RDONLY
);
6675 error ("%s: could not open compare-debug file %s",
6676 input_filename
, cmpfile
[i
]);
6681 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6684 if (map
[i
] == (void *) MAP_FAILED
)
6693 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6695 error ("%s: -fcompare-debug failure", input_filename
);
6700 for (i
= 0; i
< 2; i
++)
6702 munmap ((caddr_t
) map
[i
], length
[i
]);
6711 for (i
= 0; i
< 2; i
++)
6713 temp
[i
] = fopen (cmpfile
[i
], "r");
6716 error ("%s: could not open compare-debug file %s",
6717 input_filename
, cmpfile
[i
]);
6723 if (!ret
&& temp
[0] && temp
[1])
6727 c0
= fgetc (temp
[0]);
6728 c1
= fgetc (temp
[1]);
6732 error ("%s: -fcompare-debug failure",
6742 for (i
= 1; i
>= 0; i
--)
6751 extern int main (int, char **);
6754 main (int argc
, char **argv
)
6758 int linker_was_run
= 0;
6759 int lang_n_infiles
= 0;
6760 int num_linker_inputs
= 0;
6761 char *explicit_link_files
;
6764 struct user_specs
*uptr
;
6765 char **old_argv
= argv
;
6767 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6768 on ?: in file-scope variable initializations. */
6769 asm_debug
= ASM_DEBUG_SPEC
;
6771 p
= argv
[0] + strlen (argv
[0]);
6772 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6776 xmalloc_set_program_name (programname
);
6778 expandargv (&argc
, &argv
);
6780 /* Determine if any expansions were made. */
6781 if (argv
!= old_argv
)
6782 at_file_supplied
= true;
6784 prune_options (&argc
, &argv
);
6786 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6787 /* Perform host dependent initialization when needed. */
6788 GCC_DRIVER_HOST_INITIALIZATION
;
6791 /* Unlock the stdio streams. */
6792 unlock_std_streams ();
6794 gcc_init_libintl ();
6796 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6797 signal (SIGINT
, fatal_error
);
6799 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6800 signal (SIGHUP
, fatal_error
);
6802 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6803 signal (SIGTERM
, fatal_error
);
6805 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6806 signal (SIGPIPE
, fatal_error
);
6809 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6810 receive the signal. A different setting is inheritable */
6811 signal (SIGCHLD
, SIG_DFL
);
6814 /* Allocate the argument vector. */
6817 obstack_init (&obstack
);
6819 /* Build multilib_select, et. al from the separate lines that make up each
6820 multilib selection. */
6822 const char *const *q
= multilib_raw
;
6825 obstack_init (&multilib_obstack
);
6826 while ((p
= *q
++) != (char *) 0)
6827 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6829 obstack_1grow (&multilib_obstack
, 0);
6830 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6832 q
= multilib_matches_raw
;
6833 while ((p
= *q
++) != (char *) 0)
6834 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6836 obstack_1grow (&multilib_obstack
, 0);
6837 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6839 q
= multilib_exclusions_raw
;
6840 while ((p
= *q
++) != (char *) 0)
6841 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6843 obstack_1grow (&multilib_obstack
, 0);
6844 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6847 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6850 obstack_1grow (&multilib_obstack
, ' ');
6851 obstack_grow (&multilib_obstack
,
6852 multilib_defaults_raw
[i
],
6853 strlen (multilib_defaults_raw
[i
]));
6857 obstack_1grow (&multilib_obstack
, 0);
6858 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6861 #ifdef INIT_ENVIRONMENT
6862 /* Set up any other necessary machine specific environment variables. */
6863 xputenv (INIT_ENVIRONMENT
);
6866 /* Make a table of what switches there are (switches, n_switches).
6867 Make a table of specified input files (infiles, n_infiles).
6868 Decode switches that are handled locally. */
6870 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6872 /* Initialize the vector of specs to just the default.
6873 This means one element containing 0s, as a terminator. */
6875 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6876 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6877 n_compilers
= n_default_compilers
;
6879 /* Read specs from a file if there is one. */
6881 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6882 spec_version
, dir_separator_str
, NULL
);
6883 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6885 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6886 /* Read the specs file unless it is a default one. */
6887 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6888 read_specs (specs_file
, TRUE
);
6892 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6893 for any override of as, ld and libraries. */
6894 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6895 + strlen (just_machine_suffix
) + sizeof ("specs"));
6897 strcpy (specs_file
, standard_exec_prefix
);
6898 strcat (specs_file
, just_machine_suffix
);
6899 strcat (specs_file
, "specs");
6900 if (access (specs_file
, R_OK
) == 0)
6901 read_specs (specs_file
, TRUE
);
6903 /* Process any configure-time defaults specified for the command line
6904 options, via OPTION_DEFAULT_SPECS. */
6905 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6906 do_option_spec (option_default_specs
[i
].name
,
6907 option_default_specs
[i
].spec
);
6909 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6910 of the command line. */
6912 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6913 do_self_spec (driver_self_specs
[i
]);
6917 enum save_temps save
;
6919 if (!compare_debug_second
)
6921 n_switches_debug_check
[1] = n_switches
;
6922 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6925 do_self_spec ("%:compare-debug-self-opt()");
6926 n_switches_debug_check
[0] = n_switches
;
6927 switches_debug_check
[0] = switches
;
6929 n_switches
= n_switches_debug_check
[1];
6930 switches
= switches_debug_check
[1];
6933 /* Avoid crash when computing %j in this early. */
6934 save
= save_temps_flag
;
6935 save_temps_flag
= SAVE_TEMPS_NONE
;
6937 compare_debug
= -compare_debug
;
6938 do_self_spec ("%:compare-debug-self-opt()");
6940 save_temps_flag
= save
;
6942 if (!compare_debug_second
)
6944 n_switches_debug_check
[1] = n_switches
;
6945 switches_debug_check
[1] = switches
;
6946 compare_debug
= -compare_debug
;
6947 n_switches
= n_switches_debug_check
[0];
6948 switches
= switches_debug_check
[0];
6952 /* If not cross-compiling, look for executables in the standard
6954 if (*cross_compile
== '0')
6956 if (*md_exec_prefix
)
6958 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6959 PREFIX_PRIORITY_LAST
, 0, 0);
6963 /* Process sysroot_suffix_spec. */
6964 if (*sysroot_suffix_spec
!= 0
6965 && do_spec_2 (sysroot_suffix_spec
) == 0)
6967 if (argbuf_index
> 1)
6968 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6969 else if (argbuf_index
== 1)
6970 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6973 #ifdef HAVE_LD_SYSROOT
6974 /* Pass the --sysroot option to the linker, if it supports that. If
6975 there is a sysroot_suffix_spec, it has already been processed by
6976 this point, so target_system_root really is the system root we
6978 if (target_system_root
)
6980 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6981 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6982 set_spec ("link", XOBFINISH (&obstack
, const char *));
6986 /* Process sysroot_hdrs_suffix_spec. */
6987 if (*sysroot_hdrs_suffix_spec
!= 0
6988 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6990 if (argbuf_index
> 1)
6991 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6992 else if (argbuf_index
== 1)
6993 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6996 /* Look for startfiles in the standard places. */
6997 if (*startfile_prefix_spec
!= 0
6998 && do_spec_2 (startfile_prefix_spec
) == 0
6999 && do_spec_1 (" ", 0, NULL
) == 0)
7002 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
7003 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
7004 PREFIX_PRIORITY_LAST
, 0, 1);
7006 /* We should eventually get rid of all these and stick to
7007 startfile_prefix_spec exclusively. */
7008 else if (*cross_compile
== '0' || target_system_root
)
7010 if (*md_startfile_prefix
)
7011 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
7012 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7014 if (*md_startfile_prefix_1
)
7015 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
7016 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
7018 /* If standard_startfile_prefix is relative, base it on
7019 standard_exec_prefix. This lets us move the installed tree
7020 as a unit. If GCC_EXEC_PREFIX is defined, base
7021 standard_startfile_prefix on that as well.
7023 If the prefix is relative, only search it for native compilers;
7024 otherwise we will search a directory containing host libraries. */
7025 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
7026 add_sysrooted_prefix (&startfile_prefixes
,
7027 standard_startfile_prefix
, "BINUTILS",
7028 PREFIX_PRIORITY_LAST
, 0, 1);
7029 else if (*cross_compile
== '0')
7031 add_prefix (&startfile_prefixes
,
7032 concat (gcc_exec_prefix
7033 ? gcc_exec_prefix
: standard_exec_prefix
,
7035 standard_startfile_prefix
, NULL
),
7036 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
7039 /* Sysrooted prefixes are relocated because target_system_root is
7040 also relocated by gcc_exec_prefix. */
7041 if (*standard_startfile_prefix_1
)
7042 add_sysrooted_prefix (&startfile_prefixes
,
7043 standard_startfile_prefix_1
, "BINUTILS",
7044 PREFIX_PRIORITY_LAST
, 0, 1);
7045 if (*standard_startfile_prefix_2
)
7046 add_sysrooted_prefix (&startfile_prefixes
,
7047 standard_startfile_prefix_2
, "BINUTILS",
7048 PREFIX_PRIORITY_LAST
, 0, 1);
7051 /* Process any user specified specs in the order given on the command
7053 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7055 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7057 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7060 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7061 if (gcc_exec_prefix
)
7062 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7063 spec_version
, dir_separator_str
, NULL
);
7065 /* Now we have the specs.
7066 Set the `valid' bits for switches that match anything in any spec. */
7068 validate_all_switches ();
7070 /* Now that we have the switches and the specs, set
7071 the subdirectory based on the options. */
7072 set_multilib_dir ();
7074 /* Set up to remember the pathname of gcc and any options
7075 needed for collect. We use argv[0] instead of programname because
7076 we need the complete pathname. */
7077 obstack_init (&collect_obstack
);
7078 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
7079 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
7080 xputenv (XOBFINISH (&collect_obstack
, char *));
7082 /* Set up to remember the pathname of the lto wrapper. */
7084 lto_wrapper_spec
= find_a_file (&exec_prefixes
, "lto-wrapper", X_OK
, false);
7085 if (lto_wrapper_spec
)
7087 obstack_init (&collect_obstack
);
7088 obstack_grow (&collect_obstack
, "COLLECT_LTO_WRAPPER=",
7089 sizeof ("COLLECT_LTO_WRAPPER=") - 1);
7090 obstack_grow (&collect_obstack
, lto_wrapper_spec
,
7091 strlen (lto_wrapper_spec
) + 1);
7092 xputenv (XOBFINISH (&collect_obstack
, char *));
7095 /* Warn about any switches that no pass was interested in. */
7097 for (i
= 0; (int) i
< n_switches
; i
++)
7098 if (! switches
[i
].validated
)
7099 error ("unrecognized option '-%s'", switches
[i
].part1
);
7101 /* Obey some of the options. */
7103 if (print_search_dirs
)
7105 printf (_("install: %s%s\n"),
7106 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7107 gcc_exec_prefix
? "" : machine_suffix
);
7108 printf (_("programs: %s\n"),
7109 build_search_list (&exec_prefixes
, "", false, false));
7110 printf (_("libraries: %s\n"),
7111 build_search_list (&startfile_prefixes
, "", false, true));
7115 if (print_file_name
)
7117 printf ("%s\n", find_file (print_file_name
));
7121 if (print_prog_name
)
7123 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7124 printf ("%s\n", (newname
? newname
: print_prog_name
));
7128 if (print_multi_lib
)
7130 print_multilib_info ();
7134 if (print_multi_directory
)
7136 if (multilib_dir
== NULL
)
7139 printf ("%s\n", multilib_dir
);
7145 if (target_system_root
)
7147 if (target_sysroot_suffix
)
7148 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7150 printf ("%s\n", target_system_root
);
7155 if (print_multi_os_directory
)
7157 if (multilib_os_dir
== NULL
)
7160 printf ("%s\n", multilib_os_dir
);
7164 if (print_sysroot_headers_suffix
)
7166 if (*sysroot_hdrs_suffix_spec
)
7168 printf("%s\n", (target_sysroot_hdrs_suffix
7169 ? target_sysroot_hdrs_suffix
7174 /* The error status indicates that only one set of fixed
7175 headers should be built. */
7176 fatal ("not configured with sysroot headers suffix");
7179 if (print_help_list
)
7185 printf (_("\nFor bug reporting instructions, please see:\n"));
7186 printf ("%s.\n", bug_report_url
);
7191 /* We do not exit here. Instead we have created a fake input file
7192 called 'help-dummy' which needs to be compiled, and we pass this
7193 on the various sub-processes, along with the --help switch.
7194 Ensure their output appears after ours. */
7195 fputc ('\n', stdout
);
7201 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
7203 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7205 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7206 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7211 /* We do not exit here. We use the same mechanism of --help to print
7212 the version of the sub-processes. */
7213 fputc ('\n', stdout
);
7222 notice ("Target: %s\n", spec_machine
);
7223 notice ("Configured with: %s\n", configuration_arguments
);
7225 #ifdef THREAD_MODEL_SPEC
7226 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7227 but there's no point in doing all this processing just to get
7228 thread_model back. */
7229 obstack_init (&obstack
);
7230 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7231 obstack_1grow (&obstack
, '\0');
7232 thrmod
= XOBFINISH (&obstack
, const char *);
7234 thrmod
= thread_model
;
7237 notice ("Thread model: %s\n", thrmod
);
7239 /* compiler_version is truncated at the first space when initialized
7240 from version string, so truncate version_string at the first space
7241 before comparing. */
7242 for (n
= 0; version_string
[n
]; n
++)
7243 if (version_string
[n
] == ' ')
7246 if (! strncmp (version_string
, compiler_version
, n
)
7247 && compiler_version
[n
] == 0)
7248 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
7250 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7251 version_string
, pkgversion_string
, compiler_version
);
7257 if (n_infiles
== added_libraries
)
7258 fatal ("no input files");
7260 /* Make a place to record the compiler output file names
7261 that correspond to the input files. */
7264 i
+= lang_specific_extra_outfiles
;
7265 outfiles
= XCNEWVEC (const char *, i
);
7267 /* Record which files were specified explicitly as link input. */
7269 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7272 combine_inputs
= true;
7274 combine_inputs
= false;
7276 for (i
= 0; (int) i
< n_infiles
; i
++)
7278 const char *name
= infiles
[i
].name
;
7279 struct compiler
*compiler
= lookup_compiler (name
,
7281 infiles
[i
].language
);
7283 if (compiler
&& !(compiler
->combinable
))
7284 combine_inputs
= false;
7286 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7287 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7288 infiles
[i
].incompiler
= compiler
;
7292 input_file_compiler
= compiler
;
7293 infiles
[i
].incompiler
= compiler
;
7297 /* Since there is no compiler for this input file, assume it is a
7299 explicit_link_files
[i
] = 1;
7300 infiles
[i
].incompiler
= NULL
;
7302 infiles
[i
].compiled
= false;
7303 infiles
[i
].preprocessed
= false;
7306 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7307 fatal ("cannot specify -o with -c or -S with multiple files");
7309 if (combine_flag
&& save_temps_flag
)
7311 bool save_combine_inputs
= combine_inputs
;
7312 /* Must do a separate pre-processing pass for C & Objective-C files, to
7313 obtain individual .i files. */
7315 combine_inputs
= false;
7316 for (i
= 0; (int) i
< n_infiles
; i
++)
7318 int this_file_error
= 0;
7320 input_file_number
= i
;
7321 set_input (infiles
[i
].name
);
7322 if (infiles
[i
].incompiler
7323 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7324 input_file_compiler
= infiles
[i
].incompiler
;
7328 if (input_file_compiler
)
7330 if (input_file_compiler
->spec
[0] == '#')
7332 error ("%s: %s compiler not installed on this system",
7333 input_filename
, &input_file_compiler
->spec
[1]);
7334 this_file_error
= 1;
7338 value
= do_spec (input_file_compiler
->spec
);
7339 infiles
[i
].preprocessed
= true;
7340 if (!have_o_argbuf_index
)
7341 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
7342 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7343 infiles
[i
].incompiler
7344 = lookup_compiler (infiles
[i
].name
,
7345 strlen (infiles
[i
].name
),
7346 infiles
[i
].language
);
7349 this_file_error
= 1;
7353 if (this_file_error
)
7355 delete_failure_queue ();
7359 clear_failure_queue ();
7361 combine_inputs
= save_combine_inputs
;
7364 for (i
= 0; (int) i
< n_infiles
; i
++)
7366 int this_file_error
= 0;
7368 /* Tell do_spec what to substitute for %i. */
7370 input_file_number
= i
;
7371 set_input (infiles
[i
].name
);
7373 if (infiles
[i
].compiled
)
7376 /* Use the same thing in %o, unless cp->spec says otherwise. */
7378 outfiles
[i
] = input_filename
;
7380 /* Figure out which compiler from the file's suffix. */
7382 if (! combine_inputs
)
7384 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7385 infiles
[i
].language
);
7387 input_file_compiler
= infiles
[i
].incompiler
;
7389 if (input_file_compiler
)
7391 /* Ok, we found an applicable compiler. Run its spec. */
7393 if (input_file_compiler
->spec
[0] == '#')
7395 error ("%s: %s compiler not installed on this system",
7396 input_filename
, &input_file_compiler
->spec
[1]);
7397 this_file_error
= 1;
7403 if (debug_check_temp_file
[0])
7404 free (debug_check_temp_file
[0]);
7405 debug_check_temp_file
[0] = NULL
;
7407 if (debug_check_temp_file
[1])
7408 free (debug_check_temp_file
[1]);
7409 debug_check_temp_file
[1] = NULL
;
7412 value
= do_spec (input_file_compiler
->spec
);
7413 infiles
[i
].compiled
= true;
7415 this_file_error
= 1;
7416 else if (compare_debug
&& debug_check_temp_file
[0])
7419 error ("Recompiling with -fcompare-debug");
7421 compare_debug
= -compare_debug
;
7422 n_switches
= n_switches_debug_check
[1];
7423 switches
= switches_debug_check
[1];
7425 value
= do_spec (input_file_compiler
->spec
);
7427 compare_debug
= -compare_debug
;
7428 n_switches
= n_switches_debug_check
[0];
7429 switches
= switches_debug_check
[0];
7433 error ("during -fcompare-debug recompilation");
7434 this_file_error
= 1;
7437 gcc_assert (debug_check_temp_file
[1]
7438 && strcmp (debug_check_temp_file
[0],
7439 debug_check_temp_file
[1]));
7442 error ("Comparing final insns dumps");
7444 if (compare_files (debug_check_temp_file
))
7445 this_file_error
= 1;
7450 if (debug_check_temp_file
[0])
7451 free (debug_check_temp_file
[0]);
7452 debug_check_temp_file
[0] = NULL
;
7454 if (debug_check_temp_file
[1])
7455 free (debug_check_temp_file
[1]);
7456 debug_check_temp_file
[1] = NULL
;
7461 /* If this file's name does not contain a recognized suffix,
7462 record it as explicit linker input. */
7465 explicit_link_files
[i
] = 1;
7467 /* Clear the delete-on-failure queue, deleting the files in it
7468 if this compilation failed. */
7470 if (this_file_error
)
7472 delete_failure_queue ();
7475 /* If this compilation succeeded, don't delete those files later. */
7476 clear_failure_queue ();
7479 /* Reset the input file name to the first compile/object file name, for use
7480 with %b in LINK_SPEC. We use the first input file that we can find
7481 a compiler to compile it instead of using infiles.language since for
7482 languages other than C we use aliases that we then lookup later. */
7487 for (i
= 0; i
< n_infiles
; i
++)
7488 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7490 set_input (infiles
[i
].name
);
7495 if (error_count
== 0)
7497 /* Make sure INPUT_FILE_NUMBER points to first available open
7499 input_file_number
= n_infiles
;
7500 if (lang_specific_pre_link ())
7504 /* Determine if there are any linker input files. */
7505 num_linker_inputs
= 0;
7506 for (i
= 0; (int) i
< n_infiles
; i
++)
7507 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7508 num_linker_inputs
++;
7510 /* Run ld to link all the compiler output files. */
7512 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
7514 int tmp
= execution_count
;
7515 const char *use_linker_plugin
= "use-linker-plugin";
7517 /* We'll use ld if we can't find collect2. */
7518 if (! strcmp (linker_name_spec
, "collect2"))
7520 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7522 linker_name_spec
= "ld";
7525 if (switch_matches (use_linker_plugin
,
7526 use_linker_plugin
+ strlen (use_linker_plugin
), 0))
7528 linker_plugin_file_spec
= find_a_file (&exec_prefixes
,
7529 "liblto_plugin.so", X_OK
,
7531 if (!linker_plugin_file_spec
)
7532 fatal ("-use-linker-plugin, but liblto_plugin.so not found.");
7534 lto_libgcc_spec
= find_a_file (&startfile_prefixes
, "libgcc.a",
7536 if (!lto_libgcc_spec
)
7537 fatal ("could not find libgcc.a.");
7539 lto_gcc_spec
= argv
[0];
7541 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7543 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7544 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7546 if (print_subprocess_help
== 1)
7548 printf (_("\nLinker options\n==============\n\n"));
7549 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7550 " to the linker.\n\n"));
7553 value
= do_spec (link_command_spec
);
7556 linker_was_run
= (tmp
!= execution_count
);
7559 /* If options said don't run linker,
7560 complain about input files to be given to the linker. */
7562 if (! linker_was_run
&& error_count
== 0)
7563 for (i
= 0; (int) i
< n_infiles
; i
++)
7564 if (explicit_link_files
[i
]
7565 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7566 error ("%s: linker input file unused because linking not done",
7569 /* Delete some or all of the temporary files we made. */
7572 delete_failure_queue ();
7573 delete_temp_files ();
7575 if (print_help_list
)
7577 printf (("\nFor bug reporting instructions, please see:\n"));
7578 printf ("%s\n", bug_report_url
);
7581 return (signal_count
!= 0 ? 2
7582 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
7586 /* Find the proper compilation spec for the file name NAME,
7587 whose length is LENGTH. LANGUAGE is the specified language,
7588 or 0 if this file is to be passed to the linker. */
7590 static struct compiler
*
7591 lookup_compiler (const char *name
, size_t length
, const char *language
)
7593 struct compiler
*cp
;
7595 /* If this was specified by the user to be a linker input, indicate that. */
7596 if (language
!= 0 && language
[0] == '*')
7599 /* Otherwise, look for the language, if one is spec'd. */
7602 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7603 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7606 error ("language %s not recognized", language
);
7610 /* Look for a suffix. */
7611 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7613 if (/* The suffix `-' matches only the file name `-'. */
7614 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7615 || (strlen (cp
->suffix
) < length
7616 /* See if the suffix matches the end of NAME. */
7617 && !strcmp (cp
->suffix
,
7618 name
+ length
- strlen (cp
->suffix
))
7623 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7624 /* Look again, but case-insensitively this time. */
7626 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7628 if (/* The suffix `-' matches only the file name `-'. */
7629 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7630 || (strlen (cp
->suffix
) < length
7631 /* See if the suffix matches the end of NAME. */
7632 && ((!strcmp (cp
->suffix
,
7633 name
+ length
- strlen (cp
->suffix
))
7634 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7635 && !strcasecmp (cp
->suffix
,
7636 name
+ length
- strlen (cp
->suffix
)))
7642 if (cp
>= compilers
)
7644 if (cp
->spec
[0] != '@')
7645 /* A non-alias entry: return it. */
7648 /* An alias entry maps a suffix to a language.
7649 Search for the language; pass 0 for NAME and LENGTH
7650 to avoid infinite recursion if language not found. */
7651 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7657 save_string (const char *s
, int len
)
7659 char *result
= XNEWVEC (char, len
+ 1);
7661 memcpy (result
, s
, len
);
7667 pfatal_with_name (const char *name
)
7669 perror_with_name (name
);
7670 delete_temp_files ();
7675 perror_with_name (const char *name
)
7677 error ("%s: %s", name
, xstrerror (errno
));
7680 /* Output an error message and exit. */
7683 fancy_abort (const char *file
, int line
, const char *func
)
7685 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7688 /* Output an error message and exit. */
7691 fatal_ice (const char *cmsgid
, ...)
7695 va_start (ap
, cmsgid
);
7697 fprintf (stderr
, "%s: ", programname
);
7698 vfprintf (stderr
, _(cmsgid
), ap
);
7700 fprintf (stderr
, "\n");
7701 delete_temp_files ();
7702 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7706 fatal (const char *cmsgid
, ...)
7710 va_start (ap
, cmsgid
);
7712 fprintf (stderr
, "%s: ", programname
);
7713 vfprintf (stderr
, _(cmsgid
), ap
);
7715 fprintf (stderr
, "\n");
7716 delete_temp_files ();
7720 /* The argument is actually c-format, not gcc-internal-format,
7721 but because functions with identical names are used through
7722 the rest of the compiler with gcc-internal-format, we just
7723 need to hope all users of these functions use the common
7724 subset between c-format and gcc-internal-format. */
7727 error (const char *gmsgid
, ...)
7731 va_start (ap
, gmsgid
);
7732 fprintf (stderr
, "%s: ", programname
);
7733 vfprintf (stderr
, _(gmsgid
), ap
);
7736 fprintf (stderr
, "\n");
7740 notice (const char *cmsgid
, ...)
7744 va_start (ap
, cmsgid
);
7745 vfprintf (stderr
, _(cmsgid
), ap
);
7750 validate_switches_from_spec (const char *spec
)
7752 const char *p
= spec
;
7755 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7756 /* We have a switch spec. */
7757 p
= validate_switches (p
+ 1);
7761 validate_all_switches (void)
7763 struct compiler
*comp
;
7764 struct spec_list
*spec
;
7766 for (comp
= compilers
; comp
->spec
; comp
++)
7767 validate_switches_from_spec (comp
->spec
);
7769 /* Look through the linked list of specs read from the specs file. */
7770 for (spec
= specs
; spec
; spec
= spec
->next
)
7771 validate_switches_from_spec (*spec
->ptr_spec
);
7773 validate_switches_from_spec (link_command_spec
);
7776 /* Look at the switch-name that comes after START
7777 and mark as valid all supplied switches that match it. */
7780 validate_switches (const char *start
)
7782 const char *p
= start
;
7786 bool suffix
= false;
7787 bool starred
= false;
7789 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7798 if (*p
== '.' || *p
== ',')
7802 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7803 || *p
== ',' || *p
== '.' || *p
== '@')
7808 starred
= true, p
++;
7814 /* Mark all matching switches as valid. */
7815 for (i
= 0; i
< n_switches
; i
++)
7816 if (!strncmp (switches
[i
].part1
, atom
, len
)
7817 && (starred
|| switches
[i
].part1
[len
] == 0))
7818 switches
[i
].validated
= 1;
7822 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7825 if (*p
&& p
[-1] == ':')
7827 while (*p
&& *p
!= ';' && *p
!= '}')
7832 if (*p
== '{' || *p
== '<')
7833 p
= validate_switches (p
+1);
7834 else if (p
[0] == 'W' && p
[1] == '{')
7835 p
= validate_switches (p
+2);
7842 if (*p
&& p
[-1] == ';')
7856 static struct mdswitchstr
*mdswitches
;
7857 static int n_mdswitches
;
7859 /* Check whether a particular argument was used. The first time we
7860 canonicalize the switches to keep only the ones we care about. */
7863 used_arg (const char *p
, int len
)
7868 const char *replace
;
7873 static struct mswitchstr
*mswitches
;
7874 static int n_mswitches
;
7879 struct mswitchstr
*matches
;
7883 /* Break multilib_matches into the component strings of string
7884 and replacement string. */
7885 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7890 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7892 q
= multilib_matches
;
7901 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7905 matches
[i
].len
= q
- matches
[i
].str
;
7907 matches
[i
].replace
= ++q
;
7908 while (*q
!= ';' && *q
!= '\0')
7911 goto invalid_matches
;
7914 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7920 /* Now build a list of the replacement string for switches that we care
7921 about. Make sure we allocate at least one entry. This prevents
7922 xmalloc from calling fatal, and prevents us from re-executing this
7925 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7926 for (i
= 0; i
< n_switches
; i
++)
7927 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7929 int xlen
= strlen (switches
[i
].part1
);
7930 for (j
= 0; j
< cnt
; j
++)
7931 if (xlen
== matches
[j
].len
7932 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7934 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7935 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7936 mswitches
[n_mswitches
].replace
= (char *) 0;
7937 mswitches
[n_mswitches
].rep_len
= 0;
7943 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7944 on the command line nor any options mutually incompatible with
7946 for (i
= 0; i
< n_mdswitches
; i
++)
7950 for (q
= multilib_options
; *q
!= '\0'; q
++)
7956 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7957 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7959 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7966 if (*q
!= ' ' && *q
!= '\0')
7968 while (*r
!= ' ' && *r
!= '\0')
7971 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7974 if (used_arg (r
, q
- r
))
7979 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7980 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7981 mswitches
[n_mswitches
].replace
= (char *) 0;
7982 mswitches
[n_mswitches
].rep_len
= 0;
7995 for (i
= 0; i
< n_mswitches
; i
++)
7996 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
8003 default_arg (const char *p
, int len
)
8007 for (i
= 0; i
< n_mdswitches
; i
++)
8008 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
8014 /* Work out the subdirectory to use based on the options. The format of
8015 multilib_select is a list of elements. Each element is a subdirectory
8016 name followed by a list of options followed by a semicolon. The format
8017 of multilib_exclusions is the same, but without the preceding
8018 directory. First gcc will check the exclusions, if none of the options
8019 beginning with an exclamation point are present, and all of the other
8020 options are present, then we will ignore this completely. Passing
8021 that, gcc will consider each multilib_select in turn using the same
8022 rules for matching the options. If a match is found, that subdirectory
8026 set_multilib_dir (void)
8029 unsigned int this_path_len
;
8030 const char *this_path
, *this_arg
;
8031 const char *start
, *end
;
8033 int ok
, ndfltok
, first
;
8036 start
= multilib_defaults
;
8037 while (*start
== ' ' || *start
== '\t')
8039 while (*start
!= '\0')
8042 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
8044 while (*start
== ' ' || *start
== '\t')
8052 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
8053 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
8055 while (*start
== ' ' || *start
== '\t')
8061 for (end
= start
+ 1;
8062 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
8065 obstack_grow (&multilib_obstack
, start
, end
- start
);
8066 obstack_1grow (&multilib_obstack
, 0);
8067 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
8068 mdswitches
[i
++].len
= end
- start
;
8075 p
= multilib_exclusions
;
8078 /* Ignore newlines. */
8085 /* Check the arguments. */
8092 fatal ("multilib exclusions '%s' is invalid",
8093 multilib_exclusions
);
8103 while (*p
!= ' ' && *p
!= ';')
8106 goto invalid_exclusions
;
8110 if (*this_arg
!= '!')
8118 ok
= used_arg (this_arg
, p
- this_arg
);
8133 p
= multilib_select
;
8136 /* Ignore newlines. */
8143 /* Get the initial path. */
8150 fatal ("multilib select '%s' is invalid",
8155 this_path_len
= p
- this_path
;
8157 /* Check the arguments. */
8164 goto invalid_select
;
8173 while (*p
!= ' ' && *p
!= ';')
8176 goto invalid_select
;
8180 if (*this_arg
!= '!')
8188 /* If this is a default argument, we can just ignore it.
8189 This is true even if this_arg begins with '!'. Beginning
8190 with '!' does not mean that this argument is necessarily
8191 inappropriate for this library: it merely means that
8192 there is a more specific library which uses this
8193 argument. If this argument is a default, we need not
8194 consider that more specific library. */
8195 ok
= used_arg (this_arg
, p
- this_arg
);
8202 if (default_arg (this_arg
, p
- this_arg
))
8211 if (this_path_len
!= 1
8212 || this_path
[0] != '.')
8214 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8217 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8218 new_multilib_dir
[this_path_len
] = '\0';
8219 q
= strchr (new_multilib_dir
, ':');
8222 multilib_dir
= new_multilib_dir
;
8229 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8231 while (q
< end
&& *q
!= ':')
8235 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8236 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8237 new_multilib_os_dir
[end
- q
- 1] = '\0';
8238 multilib_os_dir
= new_multilib_os_dir
;
8246 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8247 && strcmp (multilib_os_dir
, ".") == 0)
8249 free (CONST_CAST (char *, multilib_os_dir
));
8250 multilib_os_dir
= NULL
;
8252 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8253 multilib_os_dir
= multilib_dir
;
8256 /* Print out the multiple library subdirectory selection
8257 information. This prints out a series of lines. Each line looks
8258 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8259 required. Only the desired options are printed out, the negative
8260 matches. The options are print without a leading dash. There are
8261 no spaces to make it easy to use the information in the shell.
8262 Each subdirectory is printed only once. This assumes the ordering
8263 generated by the genmultilib script. Also, we leave out ones that match
8267 print_multilib_info (void)
8269 const char *p
= multilib_select
;
8270 const char *last_path
= 0, *this_path
;
8272 unsigned int last_path_len
= 0;
8277 /* Ignore newlines. */
8284 /* Get the initial path. */
8291 fatal ("multilib select '%s' is invalid", multilib_select
);
8297 /* When --disable-multilib was used but target defines
8298 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8299 to find multilib_os_dir, so skip them from output. */
8300 if (this_path
[0] == '.' && this_path
[1] == ':')
8303 /* Check for matches with the multilib_exclusions. We don't bother
8304 with the '!' in either list. If any of the exclusion rules match
8305 all of its options with the select rule, we skip it. */
8307 const char *e
= multilib_exclusions
;
8308 const char *this_arg
;
8313 /* Ignore newlines. */
8320 /* Check the arguments. */
8329 fatal ("multilib exclusion '%s' is invalid",
8330 multilib_exclusions
);
8341 while (*e
!= ' ' && *e
!= ';')
8344 goto invalid_exclusion
;
8352 int len
= e
- this_arg
;
8355 goto invalid_select
;
8359 while (*q
!= ' ' && *q
!= ';')
8362 goto invalid_select
;
8366 if (! strncmp (arg
, this_arg
,
8367 (len
< q
- arg
) ? q
- arg
: len
)
8368 || default_arg (this_arg
, e
- this_arg
))
8398 /* If this is a duplicate, skip it. */
8399 skip
= (last_path
!= 0
8400 && (unsigned int) (p
- this_path
) == last_path_len
8401 && ! strncmp (last_path
, this_path
, last_path_len
));
8403 last_path
= this_path
;
8404 last_path_len
= p
- this_path
;
8407 /* If this directory requires any default arguments, we can skip
8408 it. We will already have printed a directory identical to
8409 this one which does not require that default argument. */
8420 goto invalid_select
;
8427 while (*q
!= ' ' && *q
!= ';')
8430 goto invalid_select
;
8435 && default_arg (arg
, q
- arg
))
8450 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8461 goto invalid_select
;
8469 use_arg
= *p
!= '!';
8474 while (*p
!= ' ' && *p
!= ';')
8477 goto invalid_select
;
8489 /* If there are extra options, print them now. */
8490 if (multilib_extra
&& *multilib_extra
)
8492 int print_at
= TRUE
;
8495 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8516 /* getenv built-in spec function.
8518 Returns the value of the environment variable given by its first
8519 argument, concatenated with the second argument. If the
8520 environment variable is not defined, a fatal error is issued. */
8523 getenv_spec_function (int argc
, const char **argv
)
8533 value
= getenv (argv
[0]);
8535 fatal ("environment variable \"%s\" not defined", argv
[0]);
8537 /* We have to escape every character of the environment variable so
8538 they are not interpreted as active spec characters. A
8539 particularly painful case is when we are reading a variable
8540 holding a windows path complete with \ separators. */
8541 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8542 result
= XNEWVAR (char, len
);
8543 for (ptr
= result
; *value
; ptr
+= 2)
8549 strcpy (ptr
, argv
[1]);
8554 /* if-exists built-in spec function.
8556 Checks to see if the file specified by the absolute pathname in
8557 ARGS exists. Returns that pathname if found.
8559 The usual use for this function is to check for a library file
8560 (whose name has been expanded with %s). */
8563 if_exists_spec_function (int argc
, const char **argv
)
8565 /* Must have only one argument. */
8566 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8572 /* if-exists-else built-in spec function.
8574 This is like if-exists, but takes an additional argument which
8575 is returned if the first argument does not exist. */
8578 if_exists_else_spec_function (int argc
, const char **argv
)
8580 /* Must have exactly two arguments. */
8584 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8590 /* replace-outfile built-in spec function.
8592 This looks for the first argument in the outfiles array's name and
8593 replaces it with the second argument. */
8596 replace_outfile_spec_function (int argc
, const char **argv
)
8599 /* Must have exactly two arguments. */
8603 for (i
= 0; i
< n_infiles
; i
++)
8605 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8606 outfiles
[i
] = xstrdup (argv
[1]);
8611 /* Given two version numbers, compares the two numbers.
8612 A version number must match the regular expression
8613 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8616 compare_version_strings (const char *v1
, const char *v2
)
8621 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8622 REG_EXTENDED
| REG_NOSUB
) != 0)
8624 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8625 if (rresult
== REG_NOMATCH
)
8626 fatal ("invalid version number `%s'", v1
);
8627 else if (rresult
!= 0)
8629 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8630 if (rresult
== REG_NOMATCH
)
8631 fatal ("invalid version number `%s'", v2
);
8632 else if (rresult
!= 0)
8635 return strverscmp (v1
, v2
);
8639 /* version_compare built-in spec function.
8641 This takes an argument of the following form:
8643 <comparison-op> <arg1> [<arg2>] <switch> <result>
8645 and produces "result" if the comparison evaluates to true,
8646 and nothing if it doesn't.
8648 The supported <comparison-op> values are:
8650 >= true if switch is a later (or same) version than arg1
8652 < true if switch is an earlier version than arg1
8654 >< true if switch is arg1 or later, and earlier than arg2
8655 <> true if switch is earlier than arg1 or is arg2 or later
8657 If the switch is not present, the condition is false unless
8658 the first character of the <comparison-op> is '!'.
8661 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8662 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8665 version_compare_spec_function (int argc
, const char **argv
)
8669 const char *switch_value
= NULL
;
8674 fatal ("too few arguments to %%:version-compare");
8675 if (argv
[0][0] == '\0')
8677 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8679 if (argc
!= nargs
+ 3)
8680 fatal ("too many arguments to %%:version-compare");
8682 switch_len
= strlen (argv
[nargs
+ 1]);
8683 for (i
= 0; i
< n_switches
; i
++)
8684 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8685 && check_live_switch (i
, switch_len
))
8686 switch_value
= switches
[i
].part1
+ switch_len
;
8688 if (switch_value
== NULL
)
8692 comp1
= compare_version_strings (switch_value
, argv
[1]);
8694 comp2
= compare_version_strings (switch_value
, argv
[2]);
8696 comp2
= -1; /* This value unused. */
8699 switch (argv
[0][0] << 8 | argv
[0][1])
8701 case '>' << 8 | '=':
8702 result
= comp1
>= 0;
8704 case '!' << 8 | '<':
8705 result
= comp1
>= 0 || switch_value
== NULL
;
8710 case '!' << 8 | '>':
8711 result
= comp1
< 0 || switch_value
== NULL
;
8713 case '>' << 8 | '<':
8714 result
= comp1
>= 0 && comp2
< 0;
8716 case '<' << 8 | '>':
8717 result
= comp1
< 0 || comp2
>= 0;
8721 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8726 return argv
[nargs
+ 2];
8729 /* %:include builtin spec function. This differs from %include in that it
8730 can be nested inside a spec, and thus be conditionalized. It takes
8731 one argument, the filename, and looks for it in the startfile path.
8732 The result is always NULL, i.e. an empty expansion. */
8735 include_spec_function (int argc
, const char **argv
)
8742 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8743 read_specs (file
? file
: argv
[0], FALSE
);
8748 /* %:print-asm-header spec function. Print a banner to say that the
8749 following output is from the assembler. */
8752 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8753 const char **argv ATTRIBUTE_UNUSED
)
8755 printf (_("Assembler options\n=================\n\n"));
8756 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8761 /* Compute a timestamp to initialize flag_random_seed. */
8764 get_local_tick (void)
8768 /* Get some more or less random data. */
8769 #ifdef HAVE_GETTIMEOFDAY
8773 gettimeofday (&tv
, NULL
);
8774 ret
= tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
8778 time_t now
= time (NULL
);
8780 if (now
!= (time_t)-1)
8781 ret
= (unsigned) now
;
8788 /* %:compare-debug-dump-opt spec function. Save the last argument,
8789 expected to be the last -fdump-final-insns option, or generate a
8793 compare_debug_dump_opt_spec_function (int arg
,
8794 const char **argv ATTRIBUTE_UNUSED
)
8799 static char random_seed
[HOST_BITS_PER_WIDE_INT
/ 4 + 3];
8802 fatal ("too many arguments to %%:compare-debug-dump-opt");
8804 do_spec_2 ("%{fdump-final-insns=*:%*}");
8805 do_spec_1 (" ", 0, NULL
);
8807 if (argbuf_index
> 0 && strcmp (argv
[argbuf_index
- 1], "."))
8812 name
= xstrdup (argv
[argbuf_index
- 1]);
8817 const char *ext
= NULL
;
8819 if (argbuf_index
> 0)
8821 do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}");
8824 else if (!compare_debug
)
8827 do_spec_2 ("%g.gkd");
8829 do_spec_1 (" ", 0, NULL
);
8831 gcc_assert (argbuf_index
> 0);
8833 name
= concat (argbuf
[argbuf_index
- 1], ext
, NULL
);
8835 ret
= concat ("-fdump-final-insns=", name
, NULL
);
8838 which
= compare_debug
< 0;
8839 debug_check_temp_file
[which
] = name
;
8843 unsigned HOST_WIDE_INT value
= get_local_tick () ^ getpid ();
8845 sprintf (random_seed
, HOST_WIDE_INT_PRINT_HEX
, value
);
8849 ret
= concat ("%{!frandom-seed=*:-frandom-seed=", random_seed
, "} ",
8858 static const char *debug_auxbase_opt
;
8860 /* %:compare-debug-self-opt spec function. Expands to the options
8861 that are to be passed in the second compilation of
8865 compare_debug_self_opt_spec_function (int arg
,
8866 const char **argv ATTRIBUTE_UNUSED
)
8869 fatal ("too many arguments to %%:compare-debug-self-opt");
8871 if (compare_debug
>= 0)
8874 do_spec_2 ("%{c|S:%{o*:%*}}");
8875 do_spec_1 (" ", 0, NULL
);
8877 if (argbuf_index
> 0)
8878 debug_auxbase_opt
= concat ("-auxbase-strip ",
8879 argbuf
[argbuf_index
- 1],
8882 debug_auxbase_opt
= NULL
;
8885 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8886 %<fdump-final-insns=* -w -S -o %j \
8887 %{!fcompare-debug-second:-fcompare-debug-second} \
8888 ", compare_debug_opt
, NULL
);
8891 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8892 options that are to be passed in the second compilation of
8893 compare-debug. It expects, as an argument, the basename of the
8894 current input file name, with the .gk suffix appended to it. */
8897 compare_debug_auxbase_opt_spec_function (int arg
,
8904 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8907 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8909 if (compare_debug
>= 0)
8912 len
= strlen (argv
[0]);
8913 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8914 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8916 if (debug_auxbase_opt
)
8917 return debug_auxbase_opt
;
8919 #define OPT "-auxbase "
8922 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8923 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8924 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8925 name
[sizeof (OPT
) - 1 + len
] = '\0';