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 #ifndef LINK_COMMAND_SPEC
768 #define LINK_COMMAND_SPEC "\
769 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
770 %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
771 %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
772 %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
773 %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
774 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
775 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
776 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
779 #ifndef LINK_LIBGCC_SPEC
780 /* Generate -L options for startfile prefix list. */
781 # define LINK_LIBGCC_SPEC "%D"
784 #ifndef STARTFILE_PREFIX_SPEC
785 # define STARTFILE_PREFIX_SPEC ""
789 # define SYSROOT_SPEC "--sysroot=%R"
792 #ifndef SYSROOT_SUFFIX_SPEC
793 # define SYSROOT_SUFFIX_SPEC ""
796 #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
797 # define SYSROOT_HEADERS_SUFFIX_SPEC ""
800 static const char *asm_debug
;
801 static const char *cpp_spec
= CPP_SPEC
;
802 static const char *cc1_spec
= CC1_SPEC
;
803 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
804 static const char *link_gcc_c_sequence_spec
= LINK_GCC_C_SEQUENCE_SPEC
;
805 static const char *link_ssp_spec
= LINK_SSP_SPEC
;
806 static const char *asm_spec
= ASM_SPEC
;
807 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
808 static const char *link_spec
= LINK_SPEC
;
809 static const char *lib_spec
= LIB_SPEC
;
810 static const char *mfwrap_spec
= MFWRAP_SPEC
;
811 static const char *mflib_spec
= MFLIB_SPEC
;
812 static const char *link_gomp_spec
= "";
813 static const char *libgcc_spec
= LIBGCC_SPEC
;
814 static const char *endfile_spec
= ENDFILE_SPEC
;
815 static const char *startfile_spec
= STARTFILE_SPEC
;
816 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
817 static const char *linker_name_spec
= LINKER_NAME
;
818 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
819 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
820 static const char *startfile_prefix_spec
= STARTFILE_PREFIX_SPEC
;
821 static const char *sysroot_spec
= SYSROOT_SPEC
;
822 static const char *sysroot_suffix_spec
= SYSROOT_SUFFIX_SPEC
;
823 static const char *sysroot_hdrs_suffix_spec
= SYSROOT_HEADERS_SUFFIX_SPEC
;
825 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
826 There should be no need to override these in target dependent files,
827 but we need to copy them to the specs file so that newer versions
828 of the GCC driver can correctly drive older tool chains with the
829 appropriate -B options. */
831 /* When cpplib handles traditional preprocessing, get rid of this, and
832 call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
833 that we default the front end language better. */
834 static const char *trad_capable_cpp
=
835 "cc1 -E %{traditional|ftraditional|traditional-cpp:-traditional-cpp}";
837 /* We don't wrap .d files in %W{} since a missing .d file, and
838 therefore no dependency entry, confuses make into thinking a .o
839 file that happens to exist is up-to-date. */
840 static const char *cpp_unique_options
=
841 "%{C|CC:%{!E:%eGCC does not support -C or -CC without -E}}\
842 %{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\
843 %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
844 %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
845 %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
846 %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
847 %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\
848 %{H} %C %{D*&U*&A*} %{i*} %Z %i\
849 %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\
850 %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\
853 /* This contains cpp options which are common with cc1_options and are passed
854 only when preprocessing only to avoid duplication. We pass the cc1 spec
855 options to the preprocessor so that it the cc1 spec may manipulate
856 options used to set target flags. Those special target flags settings may
857 in turn cause preprocessor symbols to be defined specially. */
858 static const char *cpp_options
=
859 "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
860 %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
861 %{undef} %{save-temps*:-fpch-preprocess}";
863 /* This contains cpp options which are not passed when the preprocessor
864 output will be used by another program. */
865 static const char *cpp_debug_options
= "%{d*}";
867 /* NB: This is shared amongst all front-ends, except for Ada. */
868 static const char *cc1_options
=
869 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
870 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
871 %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \
872 %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \
873 %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
874 %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
875 %{Qn:-fno-ident} %{--help:--help}\
876 %{--target-help:--target-help}\
877 %{--help=*:--help=%(VALUE)}\
878 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
879 %{fsyntax-only:-o %j} %{-param*}\
880 %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\
881 %{coverage:-fprofile-arcs -ftest-coverage}";
883 static const char *asm_options
=
884 "%{--target-help:%:print-asm-header()} "
886 /* If GNU AS is used, then convert -w (no warnings), -I, and -v
887 to the assembler equivalents. */
888 "%{v} %{w:-W} %{I*} "
890 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
892 static const char *invoke_as
=
893 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
894 "%{fcompare-debug=*:%:compare-debug-dump-opt()}\
895 %{!S:-o %|.s |\n as %(asm_options) %|.s %A }";
897 "%{fcompare-debug=*:%:compare-debug-dump-opt()}\
898 %{!S:-o %|.s |\n as %(asm_options) %m.s %A }";
901 /* Some compilers have limits on line lengths, and the multilib_select
902 and/or multilib_matches strings can be very long, so we build them at
904 static struct obstack multilib_obstack
;
905 static const char *multilib_select
;
906 static const char *multilib_matches
;
907 static const char *multilib_defaults
;
908 static const char *multilib_exclusions
;
910 /* Check whether a particular argument is a default argument. */
912 #ifndef MULTILIB_DEFAULTS
913 #define MULTILIB_DEFAULTS { "" }
916 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
918 #ifndef DRIVER_SELF_SPECS
919 #define DRIVER_SELF_SPECS ""
922 /* Adding -fopenmp should imply pthreads. This is particularly important
923 for targets that use different start files and suchlike. */
924 #ifndef GOMP_SELF_SPECS
925 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
928 static const char *const driver_self_specs
[] = {
929 DRIVER_SELF_SPECS
, GOMP_SELF_SPECS
932 #ifndef OPTION_DEFAULT_SPECS
933 #define OPTION_DEFAULT_SPECS { "", "" }
942 static const struct default_spec
943 option_default_specs
[] = { OPTION_DEFAULT_SPECS
};
947 struct user_specs
*next
;
948 const char *filename
;
951 static struct user_specs
*user_specs_head
, *user_specs_tail
;
953 #ifndef SWITCH_TAKES_ARG
954 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
957 #ifndef WORD_SWITCH_TAKES_ARG
958 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
961 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
962 /* This defines which switches stop a full compilation. */
963 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
964 ((CHAR) == 'c' || (CHAR) == 'S')
966 #ifndef SWITCH_CURTAILS_COMPILATION
967 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
968 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
972 /* Record the mapping from file suffixes for compilation specs. */
976 const char *suffix
; /* Use this compiler for input files
977 whose names end in this suffix. */
979 const char *spec
; /* To use this compiler, run this spec. */
981 const char *cpp_spec
; /* If non-NULL, substitute this spec
982 for `%C', rather than the usual
984 const int combinable
; /* If nonzero, compiler can deal with
985 multiple source files at once (IMA). */
986 const int needs_preprocessing
; /* If nonzero, source files need to
987 be run through a preprocessor. */
990 /* Pointer to a vector of `struct compiler' that gives the spec for
991 compiling a file, based on its suffix.
992 A file that does not end in any of these suffixes will be passed
993 unchanged to the loader and nothing else will be done to it.
995 An entry containing two 0s is used to terminate the vector.
997 If multiple entries match a file, the last matching one is used. */
999 static struct compiler
*compilers
;
1001 /* Number of entries in `compilers', not counting the null terminator. */
1003 static int n_compilers
;
1005 /* The default list of file name suffixes and their compilation specs. */
1007 static const struct compiler default_compilers
[] =
1009 /* Add lists of suffixes of known languages here. If those languages
1010 were not present when we built the driver, we will hit these copies
1011 and be given a more meaningful error than "file not used since
1012 linking is not done". */
1013 {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1014 {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1015 {".mii", "#Objective-C++", 0, 0, 0},
1016 {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1017 {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1018 {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1019 {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1020 {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1021 {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1022 {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1023 {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1024 {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1025 {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1026 {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1027 {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1028 {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1029 {".r", "#Ratfor", 0, 0, 0},
1030 {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0},
1031 {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0},
1032 {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0},
1033 /* Next come the entries for C. */
1034 {".c", "@c", 0, 1, 1},
1036 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1037 external preprocessor if -save-temps is given. */
1038 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1040 %{traditional|ftraditional:\
1041 %eGNU C no longer supports -traditional without -E}\
1043 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1044 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1045 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1047 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1048 cc1 %(cpp_unique_options) %(cc1_options)}}}\
1049 %{!fsyntax-only:%(invoke_as)}} \
1051 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1052 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i}}\
1053 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1054 cc1 %(cpp_unique_options) %(cc1_options)}}\
1055 %{!fsyntax-only:%(invoke_as)}}}}}}", 0, 1, 1},
1057 "%{!E:%e-E or -x required when input is from standard input}\
1058 %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1059 {".h", "@c-header", 0, 0, 0},
1061 /* cc1 has an integrated ISO C preprocessor. We should invoke the
1062 external preprocessor if -save-temps is given. */
1063 "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1065 %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1066 %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1067 cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1069 -o %g.s %{!o*:--output-pch=%i.gch}\
1070 %W{o*:--output-pch=%*}%V}\
1071 %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1072 cc1 %(cpp_unique_options) %(cc1_options)\
1073 -o %g.s %{!o*:--output-pch=%i.gch}\
1074 %W{o*:--output-pch=%*}%V}}}}}}", 0, 0, 0},
1075 {".i", "@cpp-output", 0, 1, 0},
1077 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
1078 {".s", "@assembler", 0, 1, 0},
1080 "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 1, 0},
1081 {".sx", "@assembler-with-cpp", 0, 1, 0},
1082 {".S", "@assembler-with-cpp", 0, 1, 0},
1083 {"@assembler-with-cpp",
1084 #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1085 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1086 %{E|M|MM:%(cpp_debug_options)}\
1087 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1088 as %(asm_debug) %(asm_options) %|.s %A }}}}"
1090 "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1091 %{E|M|MM:%(cpp_debug_options)}\
1092 %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1093 as %(asm_debug) %(asm_options) %m.s %A }}}}"
1098 /* Mark end of table. */
1102 /* Number of elements in default_compilers, not counting the terminator. */
1104 static const int n_default_compilers
= ARRAY_SIZE (default_compilers
) - 1;
1106 /* A vector of options to give to the linker.
1107 These options are accumulated by %x,
1108 and substituted into the linker command with %X. */
1109 static int n_linker_options
;
1110 static char **linker_options
;
1112 /* A vector of options to give to the assembler.
1113 These options are accumulated by -Wa,
1114 and substituted into the assembler command with %Y. */
1115 static int n_assembler_options
;
1116 static char **assembler_options
;
1118 /* A vector of options to give to the preprocessor.
1119 These options are accumulated by -Wp,
1120 and substituted into the preprocessor command with %Z. */
1121 static int n_preprocessor_options
;
1122 static char **preprocessor_options
;
1124 /* Define how to map long options into short ones. */
1126 /* This structure describes one mapping. */
1129 /* The long option's name. */
1130 const char *const name
;
1131 /* The equivalent short option. */
1132 const char *const equivalent
;
1133 /* Argument info. A string of flag chars; NULL equals no options.
1134 a => argument required.
1135 o => argument optional.
1136 j => join argument to equivalent, making one word.
1137 * => require other text after NAME as an argument. */
1138 const char *const arg_info
;
1141 /* This is the table of mappings. Mappings are tried sequentially
1142 for each option encountered; the first one that matches, wins. */
1144 static const struct option_map option_map
[] =
1146 {"--all-warnings", "-Wall", 0},
1147 {"--ansi", "-ansi", 0},
1148 {"--assemble", "-S", 0},
1149 {"--assert", "-A", "a"},
1150 {"--classpath", "-fclasspath=", "aj"},
1151 {"--bootclasspath", "-fbootclasspath=", "aj"},
1152 {"--CLASSPATH", "-fclasspath=", "aj"},
1153 {"--combine", "-combine", 0},
1154 {"--comments", "-C", 0},
1155 {"--comments-in-macros", "-CC", 0},
1156 {"--compile", "-c", 0},
1157 {"--debug", "-g", "oj"},
1158 {"--define-macro", "-D", "aj"},
1159 {"--dependencies", "-M", 0},
1160 {"--dump", "-d", "a"},
1161 {"--dumpbase", "-dumpbase", "a"},
1162 {"--encoding", "-fencoding=", "aj"},
1163 {"--entry", "-e", 0},
1164 {"--extra-warnings", "-W", 0},
1165 {"--extdirs", "-fextdirs=", "aj"},
1166 {"--for-assembler", "-Wa", "a"},
1167 {"--for-linker", "-Xlinker", "a"},
1168 {"--force-link", "-u", "a"},
1169 {"--coverage", "-coverage", 0},
1170 {"--imacros", "-imacros", "a"},
1171 {"--include", "-include", "a"},
1172 {"--include-barrier", "-I-", 0},
1173 {"--include-directory", "-I", "aj"},
1174 {"--include-directory-after", "-idirafter", "a"},
1175 {"--include-prefix", "-iprefix", "a"},
1176 {"--include-with-prefix", "-iwithprefix", "a"},
1177 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
1178 {"--include-with-prefix-after", "-iwithprefix", "a"},
1179 {"--language", "-x", "a"},
1180 {"--library-directory", "-L", "a"},
1181 {"--machine", "-m", "aj"},
1182 {"--machine-", "-m", "*j"},
1183 {"--no-canonical-prefixes", "-no-canonical-prefixes", 0},
1184 {"--no-integrated-cpp", "-no-integrated-cpp", 0},
1185 {"--no-line-commands", "-P", 0},
1186 {"--no-precompiled-includes", "-noprecomp", 0},
1187 {"--no-standard-includes", "-nostdinc", 0},
1188 {"--no-standard-libraries", "-nostdlib", 0},
1189 {"--no-warnings", "-w", 0},
1190 {"--optimize", "-O", "oj"},
1191 {"--output", "-o", "a"},
1192 {"--output-class-directory", "-foutput-class-dir=", "ja"},
1193 {"--param", "--param", "a"},
1194 {"--pass-exit-codes", "-pass-exit-codes", 0},
1195 {"--pedantic", "-pedantic", 0},
1196 {"--pedantic-errors", "-pedantic-errors", 0},
1197 {"--pie", "-pie", 0},
1198 {"--pipe", "-pipe", 0},
1199 {"--prefix", "-B", "a"},
1200 {"--preprocess", "-E", 0},
1201 {"--print-search-dirs", "-print-search-dirs", 0},
1202 {"--print-file-name", "-print-file-name=", "aj"},
1203 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
1204 {"--print-missing-file-dependencies", "-MG", 0},
1205 {"--print-multi-lib", "-print-multi-lib", 0},
1206 {"--print-multi-directory", "-print-multi-directory", 0},
1207 {"--print-multi-os-directory", "-print-multi-os-directory", 0},
1208 {"--print-prog-name", "-print-prog-name=", "aj"},
1209 {"--print-sysroot", "-print-sysroot", 0},
1210 {"--print-sysroot-headers-suffix", "-print-sysroot-headers-suffix", 0},
1211 {"--profile", "-p", 0},
1212 {"--profile-blocks", "-a", 0},
1213 {"--quiet", "-q", 0},
1214 {"--resource", "-fcompile-resource=", "aj"},
1215 {"--save-temps", "-save-temps", 0},
1216 {"--shared", "-shared", 0},
1217 {"--silent", "-q", 0},
1218 {"--specs", "-specs=", "aj"},
1219 {"--static", "-static", 0},
1220 {"--std", "-std=", "aj"},
1221 {"--symbolic", "-symbolic", 0},
1222 {"--sysroot", "--sysroot=", "aj"},
1223 {"--time", "-time", 0},
1224 {"--trace-includes", "-H", 0},
1225 {"--traditional", "-traditional", 0},
1226 {"--traditional-cpp", "-traditional-cpp", 0},
1227 {"--trigraphs", "-trigraphs", 0},
1228 {"--undefine-macro", "-U", "aj"},
1229 {"--user-dependencies", "-MM", 0},
1230 {"--verbose", "-v", 0},
1231 {"--warn-", "-W", "*j"},
1232 {"--write-dependencies", "-MD", 0},
1233 {"--write-user-dependencies", "-MMD", 0},
1238 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1239 static const struct {
1240 const char *const option_found
;
1241 const char *const replacements
;
1242 } target_option_translations
[] =
1244 TARGET_OPTION_TRANSLATE_TABLE
,
1249 /* Translate the options described by *ARGCP and *ARGVP.
1250 Make a new vector and store it back in *ARGVP,
1251 and store its length in *ARGCP. */
1254 translate_options (int *argcp
, const char *const **argvp
)
1258 const char *const *argv
= *argvp
;
1259 int newvsize
= (argc
+ 2) * 2 * sizeof (const char *);
1260 const char **newv
= XNEWVAR (const char *, newvsize
);
1264 newv
[newindex
++] = argv
[i
++];
1268 #ifdef TARGET_OPTION_TRANSLATE_TABLE
1272 target_option_translations
[tott_idx
].option_found
;
1275 if (strcmp (target_option_translations
[tott_idx
].option_found
,
1282 for (sp
= target_option_translations
[tott_idx
].replacements
;
1289 newvsize
+= spaces
* sizeof (const char *);
1290 newv
= XRESIZEVAR (const char *, newv
, newvsize
);
1292 sp
= target_option_translations
[tott_idx
].replacements
;
1301 newv
[newindex
++] = np
;
1302 while (*np
!= ' ' && *np
)
1313 if (target_option_translations
[tott_idx
].option_found
)
1317 /* Translate -- options. */
1318 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1321 /* Find a mapping that applies to this option. */
1322 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1324 size_t optlen
= strlen (option_map
[j
].name
);
1325 size_t arglen
= strlen (argv
[i
]);
1326 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1327 const char *arginfo
= option_map
[j
].arg_info
;
1332 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1334 const char *arg
= 0;
1336 if (arglen
< optlen
)
1339 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1340 if (strlen (option_map
[k
].name
) >= arglen
1341 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1343 error ("ambiguous abbreviation %s", argv
[i
]);
1347 if (k
!= ARRAY_SIZE (option_map
))
1351 if (arglen
> optlen
)
1353 /* If the option has an argument, accept that. */
1354 if (argv
[i
][optlen
] == '=')
1355 arg
= argv
[i
] + optlen
+ 1;
1357 /* If this mapping requires extra text at end of name,
1358 accept that as "argument". */
1359 else if (strchr (arginfo
, '*') != 0)
1360 arg
= argv
[i
] + optlen
;
1362 /* Otherwise, extra text at end means mismatch.
1363 Try other mappings. */
1368 else if (strchr (arginfo
, '*') != 0)
1370 error ("incomplete '%s' option", option_map
[j
].name
);
1374 /* Handle arguments. */
1375 if (strchr (arginfo
, 'a') != 0)
1381 error ("missing argument to '%s' option",
1382 option_map
[j
].name
);
1389 else if (strchr (arginfo
, '*') != 0)
1391 else if (strchr (arginfo
, 'o') == 0)
1394 error ("extraneous argument to '%s' option",
1395 option_map
[j
].name
);
1399 /* Store the translation as one argv elt or as two. */
1400 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1401 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1405 newv
[newindex
++] = option_map
[j
].equivalent
;
1406 newv
[newindex
++] = arg
;
1409 newv
[newindex
++] = option_map
[j
].equivalent
;
1417 /* Handle old-fashioned options--just copy them through,
1418 with their arguments. */
1419 else if (argv
[i
][0] == '-')
1421 const char *p
= argv
[i
] + 1;
1425 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1426 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1427 else if (WORD_SWITCH_TAKES_ARG (p
))
1428 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1429 else if ((c
== 'B' || c
== 'b' || c
== 'x')
1432 else if (! strcmp (p
, "Xlinker"))
1434 else if (! strcmp (p
, "Xpreprocessor"))
1436 else if (! strcmp (p
, "Xassembler"))
1439 /* Watch out for an option at the end of the command line that
1440 is missing arguments, and avoid skipping past the end of the
1442 if (nskip
+ i
> argc
)
1447 newv
[newindex
++] = argv
[i
++];
1452 /* Ordinary operands, or +e options. */
1453 newv
[newindex
++] = argv
[i
++];
1463 skip_whitespace (char *p
)
1467 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1468 be considered whitespace. */
1469 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1471 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1485 /* Structures to keep track of prefixes to try when looking for files. */
1489 const char *prefix
; /* String to prepend to the path. */
1490 struct prefix_list
*next
; /* Next in linked list. */
1491 int require_machine_suffix
; /* Don't use without machine_suffix. */
1492 /* 2 means try both machine_suffix and just_machine_suffix. */
1493 int priority
; /* Sort key - priority within list. */
1494 int os_multilib
; /* 1 if OS multilib scheme should be used,
1495 0 for GCC multilib scheme. */
1500 struct prefix_list
*plist
; /* List of prefixes to try */
1501 int max_len
; /* Max length of a prefix in PLIST */
1502 const char *name
; /* Name of this list (used in config stuff) */
1505 /* List of prefixes to try when looking for executables. */
1507 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1509 /* List of prefixes to try when looking for startup (crt0) files. */
1511 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1513 /* List of prefixes to try when looking for include files. */
1515 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1517 /* Suffix to attach to directories searched for commands.
1518 This looks like `MACHINE/VERSION/'. */
1520 static const char *machine_suffix
= 0;
1522 /* Suffix to attach to directories searched for commands.
1523 This is just `MACHINE/'. */
1525 static const char *just_machine_suffix
= 0;
1527 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1529 static const char *gcc_exec_prefix
;
1531 /* Adjusted value of standard_libexec_prefix. */
1533 static const char *gcc_libexec_prefix
;
1535 /* Default prefixes to attach to command names. */
1537 #ifndef STANDARD_STARTFILE_PREFIX_1
1538 #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1540 #ifndef STANDARD_STARTFILE_PREFIX_2
1541 #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1544 #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1545 #undef MD_EXEC_PREFIX
1546 #undef MD_STARTFILE_PREFIX
1547 #undef MD_STARTFILE_PREFIX_1
1550 /* If no prefixes defined, use the null string, which will disable them. */
1551 #ifndef MD_EXEC_PREFIX
1552 #define MD_EXEC_PREFIX ""
1554 #ifndef MD_STARTFILE_PREFIX
1555 #define MD_STARTFILE_PREFIX ""
1557 #ifndef MD_STARTFILE_PREFIX_1
1558 #define MD_STARTFILE_PREFIX_1 ""
1561 /* These directories are locations set at configure-time based on the
1562 --prefix option provided to configure. Their initializers are
1563 defined in Makefile.in. These paths are not *directly* used when
1564 gcc_exec_prefix is set because, in that case, we know where the
1565 compiler has been installed, and use paths relative to that
1566 location instead. */
1567 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1568 static const char *const standard_libexec_prefix
= STANDARD_LIBEXEC_PREFIX
;
1569 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1570 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1572 /* For native compilers, these are well-known paths containing
1573 components that may be provided by the system. For cross
1574 compilers, these paths are not used. */
1575 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1576 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1577 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1578 static const char *const standard_startfile_prefix_1
1579 = STANDARD_STARTFILE_PREFIX_1
;
1580 static const char *const standard_startfile_prefix_2
1581 = STANDARD_STARTFILE_PREFIX_2
;
1583 /* A relative path to be used in finding the location of tools
1584 relative to the driver. */
1585 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1587 /* Subdirectory to use for locating libraries. Set by
1588 set_multilib_dir based on the compilation options. */
1590 static const char *multilib_dir
;
1592 /* Subdirectory to use for locating libraries in OS conventions. Set by
1593 set_multilib_dir based on the compilation options. */
1595 static const char *multilib_os_dir
;
1597 /* Structure to keep track of the specs that have been defined so far.
1598 These are accessed using %(specname) or %[specname] in a compiler
1603 /* The following 2 fields must be first */
1604 /* to allow EXTRA_SPECS to be initialized */
1605 const char *name
; /* name of the spec. */
1606 const char *ptr
; /* available ptr if no static pointer */
1608 /* The following fields are not initialized */
1609 /* by EXTRA_SPECS */
1610 const char **ptr_spec
; /* pointer to the spec itself. */
1611 struct spec_list
*next
; /* Next spec in linked list. */
1612 int name_len
; /* length of the name */
1613 int alloc_p
; /* whether string was allocated */
1616 #define INIT_STATIC_SPEC(NAME,PTR) \
1617 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1619 /* List of statically defined specs. */
1620 static struct spec_list static_specs
[] =
1622 INIT_STATIC_SPEC ("asm", &asm_spec
),
1623 INIT_STATIC_SPEC ("asm_debug", &asm_debug
),
1624 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1625 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1626 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1627 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1628 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1629 INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options
),
1630 INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options
),
1631 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1632 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1633 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1634 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1635 INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec
),
1636 INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec
),
1637 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1638 INIT_STATIC_SPEC ("link", &link_spec
),
1639 INIT_STATIC_SPEC ("lib", &lib_spec
),
1640 INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec
),
1641 INIT_STATIC_SPEC ("mflib", &mflib_spec
),
1642 INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec
),
1643 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1644 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1645 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1646 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1647 INIT_STATIC_SPEC ("version", &compiler_version
),
1648 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1649 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1650 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1651 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1652 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1653 INIT_STATIC_SPEC ("multilib_options", &multilib_options
),
1654 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1655 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1656 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1657 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1658 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1659 INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec
),
1660 INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec
),
1661 INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec
),
1662 INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec
),
1665 #ifdef EXTRA_SPECS /* additional specs needed */
1666 /* Structure to keep track of just the first two args of a spec_list.
1667 That is all that the EXTRA_SPECS macro gives us. */
1670 const char *const name
;
1671 const char *const ptr
;
1674 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1675 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1678 /* List of dynamically allocates specs that have been defined so far. */
1680 static struct spec_list
*specs
= (struct spec_list
*) 0;
1682 /* List of static spec functions. */
1684 static const struct spec_function static_spec_functions
[] =
1686 { "getenv", getenv_spec_function
},
1687 { "if-exists", if_exists_spec_function
},
1688 { "if-exists-else", if_exists_else_spec_function
},
1689 { "replace-outfile", replace_outfile_spec_function
},
1690 { "version-compare", version_compare_spec_function
},
1691 { "include", include_spec_function
},
1692 { "print-asm-header", print_asm_header_spec_function
},
1693 { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function
},
1694 { "compare-debug-self-opt", compare_debug_self_opt_spec_function
},
1695 { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function
},
1696 #ifdef EXTRA_SPEC_FUNCTIONS
1697 EXTRA_SPEC_FUNCTIONS
1702 static int processing_spec_function
;
1704 /* Add appropriate libgcc specs to OBSTACK, taking into account
1705 various permutations of -shared-libgcc, -shared, and such. */
1707 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1709 #ifndef USE_LD_AS_NEEDED
1710 #define USE_LD_AS_NEEDED 0
1714 init_gcc_specs (struct obstack
*obstack
, const char *shared_name
,
1715 const char *static_name
, const char *eh_name
)
1719 buf
= concat ("%{static|static-libgcc:", static_name
, " ", eh_name
, "}"
1720 "%{!static:%{!static-libgcc:"
1721 #if USE_LD_AS_NEEDED
1722 "%{!shared-libgcc:",
1723 static_name
, " --as-needed ", shared_name
, " --no-as-needed"
1726 shared_name
, "%{!shared: ", static_name
, "}"
1730 "%{!shared-libgcc:", static_name
, " ", eh_name
, "}"
1731 "%{shared-libgcc:", shared_name
, " ", static_name
, "}"
1735 "%{shared-libgcc:", shared_name
, "}"
1736 "%{!shared-libgcc:", static_name
, "}"
1739 "%{shared:", shared_name
, "}"
1744 obstack_grow (obstack
, buf
, strlen (buf
));
1747 #endif /* ENABLE_SHARED_LIBGCC */
1749 /* Initialize the specs lookup routines. */
1754 struct spec_list
*next
= (struct spec_list
*) 0;
1755 struct spec_list
*sl
= (struct spec_list
*) 0;
1759 return; /* Already initialized. */
1762 notice ("Using built-in specs.\n");
1765 extra_specs
= XCNEWVEC (struct spec_list
, ARRAY_SIZE (extra_specs_1
));
1767 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1769 sl
= &extra_specs
[i
];
1770 sl
->name
= extra_specs_1
[i
].name
;
1771 sl
->ptr
= extra_specs_1
[i
].ptr
;
1773 sl
->name_len
= strlen (sl
->name
);
1774 sl
->ptr_spec
= &sl
->ptr
;
1779 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1781 sl
= &static_specs
[i
];
1786 #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1787 /* ??? If neither -shared-libgcc nor --static-libgcc was
1788 seen, then we should be making an educated guess. Some proposed
1789 heuristics for ELF include:
1791 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1792 program will be doing dynamic loading, which will likely
1793 need the shared libgcc.
1795 (2) If "-ldl", then it's also a fair bet that we're doing
1798 (3) For each ET_DYN we're linking against (either through -lfoo
1799 or /some/path/foo.so), check to see whether it or one of
1800 its dependencies depends on a shared libgcc.
1804 If the runtime is fixed to look for program headers instead
1805 of calling __register_frame_info at all, for each object,
1806 use the shared libgcc if any EH symbol referenced.
1808 If crtstuff is fixed to not invoke __register_frame_info
1809 automatically, for each object, use the shared libgcc if
1810 any non-empty unwind section found.
1812 Doing any of this probably requires invoking an external program to
1813 do the actual object file scanning. */
1815 const char *p
= libgcc_spec
;
1818 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1819 when given the proper command line arguments. */
1822 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1824 init_gcc_specs (&obstack
,
1826 #ifdef USE_LIBUNWIND_EXCEPTIONS
1832 #ifdef USE_LIBUNWIND_EXCEPTIONS
1833 # ifdef HAVE_LD_STATIC_DYNAMIC
1834 " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
1844 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1846 /* Ug. We don't know shared library extensions. Hope that
1847 systems that use this form don't do shared libraries. */
1848 init_gcc_specs (&obstack
,
1852 #ifdef USE_LIBUNWIND_EXCEPTIONS
1861 obstack_1grow (&obstack
, *p
);
1862 in_sep
= (*p
== ' ');
1867 obstack_1grow (&obstack
, '\0');
1868 libgcc_spec
= XOBFINISH (&obstack
, const char *);
1871 #ifdef USE_AS_TRADITIONAL_FORMAT
1872 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1874 static const char tf
[] = "--traditional-format ";
1875 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1876 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1877 asm_spec
= XOBFINISH (&obstack
, const char *);
1881 #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
1882 # ifdef LINK_BUILDID_SPEC
1883 /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
1884 obstack_grow (&obstack
, LINK_BUILDID_SPEC
, sizeof(LINK_BUILDID_SPEC
) - 1);
1886 # ifdef LINK_EH_SPEC
1887 /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
1888 obstack_grow (&obstack
, LINK_EH_SPEC
, sizeof(LINK_EH_SPEC
) - 1);
1890 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
1891 link_spec
= XOBFINISH (&obstack
, const char *);
1897 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1898 removed; If the spec starts with a + then SPEC is added to the end of the
1902 set_spec (const char *name
, const char *spec
)
1904 struct spec_list
*sl
;
1905 const char *old_spec
;
1906 int name_len
= strlen (name
);
1909 /* If this is the first call, initialize the statically allocated specs. */
1912 struct spec_list
*next
= (struct spec_list
*) 0;
1913 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1915 sl
= &static_specs
[i
];
1922 /* See if the spec already exists. */
1923 for (sl
= specs
; sl
; sl
= sl
->next
)
1924 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1929 /* Not found - make it. */
1930 sl
= XNEW (struct spec_list
);
1931 sl
->name
= xstrdup (name
);
1932 sl
->name_len
= name_len
;
1933 sl
->ptr_spec
= &sl
->ptr
;
1935 *(sl
->ptr_spec
) = "";
1940 old_spec
= *(sl
->ptr_spec
);
1941 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1942 ? concat (old_spec
, spec
+ 1, NULL
)
1947 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1950 /* Free the old spec. */
1951 if (old_spec
&& sl
->alloc_p
)
1952 free (CONST_CAST(char *, old_spec
));
1957 /* Accumulate a command (program name and args), and run it. */
1959 /* Vector of pointers to arguments in the current line of specifications. */
1961 static const char **argbuf
;
1963 /* Number of elements allocated in argbuf. */
1965 static int argbuf_length
;
1967 /* Number of elements in argbuf currently in use (containing args). */
1969 static int argbuf_index
;
1971 /* Position in the argbuf array containing the name of the output file
1972 (the value associated with the "-o" flag). */
1974 static int have_o_argbuf_index
= 0;
1976 /* Were the options -c or -S passed. */
1977 static int have_c
= 0;
1979 /* Was the option -o passed. */
1980 static int have_o
= 0;
1982 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1983 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1986 static struct temp_name
{
1987 const char *suffix
; /* suffix associated with the code. */
1988 int length
; /* strlen (suffix). */
1989 int unique
; /* Indicates whether %g or %u/%U was used. */
1990 const char *filename
; /* associated filename. */
1991 int filename_length
; /* strlen (filename). */
1992 struct temp_name
*next
;
1995 /* Number of commands executed so far. */
1997 static int execution_count
;
1999 /* Number of commands that exited with a signal. */
2001 static int signal_count
;
2003 /* Name with which this program was invoked. */
2005 static const char *programname
;
2007 /* Allocate the argument vector. */
2013 argbuf
= XNEWVEC (const char *, argbuf_length
);
2016 /* Clear out the vector of arguments (after a command is executed). */
2024 /* Add one argument to the vector at the end.
2025 This is done when a space is seen or at the end of the line.
2026 If DELETE_ALWAYS is nonzero, the arg is a filename
2027 and the file should be deleted eventually.
2028 If DELETE_FAILURE is nonzero, the arg is a filename
2029 and the file should be deleted if this compilation fails. */
2032 store_arg (const char *arg
, int delete_always
, int delete_failure
)
2034 if (argbuf_index
+ 1 == argbuf_length
)
2035 argbuf
= XRESIZEVEC (const char *, argbuf
, (argbuf_length
*= 2));
2037 argbuf
[argbuf_index
++] = arg
;
2038 argbuf
[argbuf_index
] = 0;
2040 if (strcmp (arg
, "-o") == 0)
2041 have_o_argbuf_index
= argbuf_index
;
2042 if (delete_always
|| delete_failure
)
2043 record_temp_file (arg
, delete_always
, delete_failure
);
2046 /* Load specs from a file name named FILENAME, replacing occurrences of
2047 various different types of line-endings, \r\n, \n\r and just \r, with
2051 load_specs (const char *filename
)
2055 struct stat statbuf
;
2062 notice ("Reading specs from %s\n", filename
);
2064 /* Open and stat the file. */
2065 desc
= open (filename
, O_RDONLY
, 0);
2067 pfatal_with_name (filename
);
2068 if (stat (filename
, &statbuf
) < 0)
2069 pfatal_with_name (filename
);
2071 /* Read contents of file into BUFFER. */
2072 buffer
= XNEWVEC (char, statbuf
.st_size
+ 1);
2073 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
2075 pfatal_with_name (filename
);
2076 buffer
[readlen
] = 0;
2079 specs
= XNEWVEC (char, readlen
+ 1);
2081 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
2087 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
2089 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
2103 /* Read compilation specs from a file named FILENAME,
2104 replacing the default ones.
2106 A suffix which starts with `*' is a definition for
2107 one of the machine-specific sub-specs. The "suffix" should be
2108 *asm, *cc1, *cpp, *link, *startfile, etc.
2109 The corresponding spec is stored in asm_spec, etc.,
2110 rather than in the `compilers' vector.
2112 Anything invalid in the file is a fatal error. */
2115 read_specs (const char *filename
, int main_p
)
2120 buffer
= load_specs (filename
);
2122 /* Scan BUFFER for specs, putting them in the vector. */
2128 char *in
, *out
, *p1
, *p2
, *p3
;
2130 /* Advance P in BUFFER to the next nonblank nocomment line. */
2131 p
= skip_whitespace (p
);
2135 /* Is this a special command that starts with '%'? */
2136 /* Don't allow this for the main specs file, since it would
2137 encourage people to overwrite it. */
2138 if (*p
== '%' && !main_p
)
2141 while (*p
&& *p
!= '\n')
2147 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
2148 && (p1
[sizeof "%include" - 1] == ' '
2149 || p1
[sizeof "%include" - 1] == '\t'))
2153 p1
+= sizeof ("%include");
2154 while (*p1
== ' ' || *p1
== '\t')
2157 if (*p1
++ != '<' || p
[-2] != '>')
2158 fatal ("specs %%include syntax malformed after %ld characters",
2159 (long) (p1
- buffer
+ 1));
2162 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2163 read_specs (new_filename
? new_filename
: p1
, FALSE
);
2166 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
2167 && (p1
[sizeof "%include_noerr" - 1] == ' '
2168 || p1
[sizeof "%include_noerr" - 1] == '\t'))
2172 p1
+= sizeof "%include_noerr";
2173 while (*p1
== ' ' || *p1
== '\t')
2176 if (*p1
++ != '<' || p
[-2] != '>')
2177 fatal ("specs %%include syntax malformed after %ld characters",
2178 (long) (p1
- buffer
+ 1));
2181 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
, true);
2183 read_specs (new_filename
, FALSE
);
2184 else if (verbose_flag
)
2185 notice ("could not find specs file %s\n", p1
);
2188 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
2189 && (p1
[sizeof "%rename" - 1] == ' '
2190 || p1
[sizeof "%rename" - 1] == '\t'))
2193 struct spec_list
*sl
;
2194 struct spec_list
*newsl
;
2196 /* Get original name. */
2197 p1
+= sizeof "%rename";
2198 while (*p1
== ' ' || *p1
== '\t')
2201 if (! ISALPHA ((unsigned char) *p1
))
2202 fatal ("specs %%rename syntax malformed after %ld characters",
2203 (long) (p1
- buffer
));
2206 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
2209 if (*p2
!= ' ' && *p2
!= '\t')
2210 fatal ("specs %%rename syntax malformed after %ld characters",
2211 (long) (p2
- buffer
));
2215 while (*p2
== ' ' || *p2
== '\t')
2218 if (! ISALPHA ((unsigned char) *p2
))
2219 fatal ("specs %%rename syntax malformed after %ld characters",
2220 (long) (p2
- buffer
));
2222 /* Get new spec name. */
2224 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
2228 fatal ("specs %%rename syntax malformed after %ld characters",
2229 (long) (p3
- buffer
));
2232 for (sl
= specs
; sl
; sl
= sl
->next
)
2233 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
2237 fatal ("specs %s spec was not found to be renamed", p1
);
2239 if (strcmp (p1
, p2
) == 0)
2242 for (newsl
= specs
; newsl
; newsl
= newsl
->next
)
2243 if (strcmp (newsl
->name
, p2
) == 0)
2244 fatal ("%s: attempt to rename spec '%s' to already defined spec '%s'",
2249 notice ("rename spec %s to %s\n", p1
, p2
);
2251 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
2255 set_spec (p2
, *(sl
->ptr_spec
));
2257 free (CONST_CAST (char *, *(sl
->ptr_spec
)));
2259 *(sl
->ptr_spec
) = "";
2264 fatal ("specs unknown %% command after %ld characters",
2265 (long) (p1
- buffer
));
2268 /* Find the colon that should end the suffix. */
2270 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
2273 /* The colon shouldn't be missing. */
2275 fatal ("specs file malformed after %ld characters",
2276 (long) (p1
- buffer
));
2278 /* Skip back over trailing whitespace. */
2280 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
2283 /* Copy the suffix to a string. */
2284 suffix
= save_string (p
, p2
- p
);
2285 /* Find the next line. */
2286 p
= skip_whitespace (p1
+ 1);
2288 fatal ("specs file malformed after %ld characters",
2289 (long) (p
- buffer
));
2292 /* Find next blank line or end of string. */
2293 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
2296 /* Specs end at the blank line and do not include the newline. */
2297 spec
= save_string (p
, p1
- p
);
2300 /* Delete backslash-newline sequences from the spec. */
2305 if (in
[0] == '\\' && in
[1] == '\n')
2307 else if (in
[0] == '#')
2308 while (*in
&& *in
!= '\n')
2316 if (suffix
[0] == '*')
2318 if (! strcmp (suffix
, "*link_command"))
2319 link_command_spec
= spec
;
2321 set_spec (suffix
+ 1, spec
);
2325 /* Add this pair to the vector. */
2327 = XRESIZEVEC (struct compiler
, compilers
, n_compilers
+ 2);
2329 compilers
[n_compilers
].suffix
= suffix
;
2330 compilers
[n_compilers
].spec
= spec
;
2332 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
2336 link_command_spec
= spec
;
2339 if (link_command_spec
== 0)
2340 fatal ("spec file has no spec for linking");
2343 /* Record the names of temporary files we tell compilers to write,
2344 and delete them at the end of the run. */
2346 /* This is the common prefix we use to make temp file names.
2347 It is chosen once for each run of this program.
2348 It is substituted into a spec by %g or %j.
2349 Thus, all temp file names contain this prefix.
2350 In practice, all temp file names start with this prefix.
2352 This prefix comes from the envvar TMPDIR if it is defined;
2353 otherwise, from the P_tmpdir macro if that is defined;
2354 otherwise, in /usr/tmp or /tmp;
2355 or finally the current directory if all else fails. */
2357 static const char *temp_filename
;
2359 /* Length of the prefix. */
2361 static int temp_filename_length
;
2363 /* Define the list of temporary files to delete. */
2368 struct temp_file
*next
;
2371 /* Queue of files to delete on success or failure of compilation. */
2372 static struct temp_file
*always_delete_queue
;
2373 /* Queue of files to delete on failure of compilation. */
2374 static struct temp_file
*failure_delete_queue
;
2376 /* Record FILENAME as a file to be deleted automatically.
2377 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2378 otherwise delete it in any case.
2379 FAIL_DELETE nonzero means delete it if a compilation step fails;
2380 otherwise delete it in any case. */
2383 record_temp_file (const char *filename
, int always_delete
, int fail_delete
)
2385 char *const name
= xstrdup (filename
);
2389 struct temp_file
*temp
;
2390 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2391 if (! strcmp (name
, temp
->name
))
2394 temp
= XNEW (struct temp_file
);
2395 temp
->next
= always_delete_queue
;
2397 always_delete_queue
= temp
;
2404 struct temp_file
*temp
;
2405 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2406 if (! strcmp (name
, temp
->name
))
2409 temp
= XNEW (struct temp_file
);
2410 temp
->next
= failure_delete_queue
;
2412 failure_delete_queue
= temp
;
2418 /* Delete all the temporary files whose names we previously recorded. */
2420 #ifndef DELETE_IF_ORDINARY
2421 #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2424 if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2425 if (unlink (NAME) < 0) \
2427 perror_with_name (NAME); \
2432 delete_if_ordinary (const char *name
)
2438 printf ("Delete %s? (y or n) ", name
);
2442 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2445 if (i
== 'y' || i
== 'Y')
2447 DELETE_IF_ORDINARY (name
, st
, verbose_flag
);
2451 delete_temp_files (void)
2453 struct temp_file
*temp
;
2455 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2456 delete_if_ordinary (temp
->name
);
2457 always_delete_queue
= 0;
2460 /* Delete all the files to be deleted on error. */
2463 delete_failure_queue (void)
2465 struct temp_file
*temp
;
2467 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2468 delete_if_ordinary (temp
->name
);
2472 clear_failure_queue (void)
2474 failure_delete_queue
= 0;
2477 /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2479 If DO_MULTI is true iterate over the paths twice, first with multilib
2480 suffix then without, otherwise iterate over the paths once without
2481 adding a multilib suffix. When DO_MULTI is true, some attempt is made
2482 to avoid visiting the same path twice, but we could do better. For
2483 instance, /usr/lib/../lib is considered different from /usr/lib.
2484 At least EXTRA_SPACE chars past the end of the path passed to
2485 CALLBACK are available for use by the callback.
2486 CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2488 Returns the value returned by CALLBACK. */
2491 for_each_path (const struct path_prefix
*paths
,
2494 void *(*callback
) (char *, void *),
2495 void *callback_info
)
2497 struct prefix_list
*pl
;
2498 const char *multi_dir
= NULL
;
2499 const char *multi_os_dir
= NULL
;
2500 const char *multi_suffix
;
2501 const char *just_multi_suffix
;
2504 bool skip_multi_dir
= false;
2505 bool skip_multi_os_dir
= false;
2507 multi_suffix
= machine_suffix
;
2508 just_multi_suffix
= just_machine_suffix
;
2509 if (do_multi
&& multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
2511 multi_dir
= concat (multilib_dir
, dir_separator_str
, NULL
);
2512 multi_suffix
= concat (multi_suffix
, multi_dir
, NULL
);
2513 just_multi_suffix
= concat (just_multi_suffix
, multi_dir
, NULL
);
2515 if (do_multi
&& multilib_os_dir
&& strcmp (multilib_os_dir
, ".") != 0)
2516 multi_os_dir
= concat (multilib_os_dir
, dir_separator_str
, NULL
);
2520 size_t multi_dir_len
= 0;
2521 size_t multi_os_dir_len
= 0;
2523 size_t just_suffix_len
;
2527 multi_dir_len
= strlen (multi_dir
);
2529 multi_os_dir_len
= strlen (multi_os_dir
);
2530 suffix_len
= strlen (multi_suffix
);
2531 just_suffix_len
= strlen (just_multi_suffix
);
2535 len
= paths
->max_len
+ extra_space
+ 1;
2536 if (suffix_len
> multi_os_dir_len
)
2539 len
+= multi_os_dir_len
;
2540 path
= XNEWVEC (char, len
);
2543 for (pl
= paths
->plist
; pl
!= 0; pl
= pl
->next
)
2545 len
= strlen (pl
->prefix
);
2546 memcpy (path
, pl
->prefix
, len
);
2548 /* Look first in MACHINE/VERSION subdirectory. */
2549 if (!skip_multi_dir
)
2551 memcpy (path
+ len
, multi_suffix
, suffix_len
+ 1);
2552 ret
= callback (path
, callback_info
);
2557 /* Some paths are tried with just the machine (ie. target)
2558 subdir. This is used for finding as, ld, etc. */
2560 && pl
->require_machine_suffix
== 2)
2562 memcpy (path
+ len
, just_multi_suffix
, just_suffix_len
+ 1);
2563 ret
= callback (path
, callback_info
);
2568 /* Now try the base path. */
2569 if (!pl
->require_machine_suffix
2570 && !(pl
->os_multilib
? skip_multi_os_dir
: skip_multi_dir
))
2572 const char *this_multi
;
2573 size_t this_multi_len
;
2575 if (pl
->os_multilib
)
2577 this_multi
= multi_os_dir
;
2578 this_multi_len
= multi_os_dir_len
;
2582 this_multi
= multi_dir
;
2583 this_multi_len
= multi_dir_len
;
2587 memcpy (path
+ len
, this_multi
, this_multi_len
+ 1);
2591 ret
= callback (path
, callback_info
);
2599 if (multi_dir
== NULL
&& multi_os_dir
== NULL
)
2602 /* Run through the paths again, this time without multilibs.
2603 Don't repeat any we have already seen. */
2606 free (CONST_CAST (char *, multi_dir
));
2608 free (CONST_CAST (char *, multi_suffix
));
2609 multi_suffix
= machine_suffix
;
2610 free (CONST_CAST (char *, just_multi_suffix
));
2611 just_multi_suffix
= just_machine_suffix
;
2614 skip_multi_dir
= true;
2617 free (CONST_CAST (char *, multi_os_dir
));
2618 multi_os_dir
= NULL
;
2621 skip_multi_os_dir
= true;
2626 free (CONST_CAST (char *, multi_dir
));
2627 free (CONST_CAST (char *, multi_suffix
));
2628 free (CONST_CAST (char *, just_multi_suffix
));
2631 free (CONST_CAST (char *, multi_os_dir
));
2637 /* Callback for build_search_list. Adds path to obstack being built. */
2639 struct add_to_obstack_info
{
2646 add_to_obstack (char *path
, void *data
)
2648 struct add_to_obstack_info
*info
= (struct add_to_obstack_info
*) data
;
2650 if (info
->check_dir
&& !is_directory (path
, false))
2653 if (!info
->first_time
)
2654 obstack_1grow (info
->ob
, PATH_SEPARATOR
);
2656 obstack_grow (info
->ob
, path
, strlen (path
));
2658 info
->first_time
= false;
2662 /* Add or change the value of an environment variable, outputting the
2663 change to standard error if in verbose mode. */
2665 xputenv (const char *string
)
2668 notice ("%s\n", string
);
2669 putenv (CONST_CAST (char *, string
));
2672 /* Build a list of search directories from PATHS.
2673 PREFIX is a string to prepend to the list.
2674 If CHECK_DIR_P is true we ensure the directory exists.
2675 If DO_MULTI is true, multilib paths are output first, then
2677 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2678 It is also used by the --print-search-dirs flag. */
2681 build_search_list (const struct path_prefix
*paths
, const char *prefix
,
2682 bool check_dir
, bool do_multi
)
2684 struct add_to_obstack_info info
;
2686 info
.ob
= &collect_obstack
;
2687 info
.check_dir
= check_dir
;
2688 info
.first_time
= true;
2690 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2691 obstack_1grow (&collect_obstack
, '=');
2693 for_each_path (paths
, do_multi
, 0, add_to_obstack
, &info
);
2695 obstack_1grow (&collect_obstack
, '\0');
2696 return XOBFINISH (&collect_obstack
, char *);
2699 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2703 putenv_from_prefixes (const struct path_prefix
*paths
, const char *env_var
,
2706 xputenv (build_search_list (paths
, env_var
, true, do_multi
));
2709 /* Check whether NAME can be accessed in MODE. This is like access,
2710 except that it never considers directories to be executable. */
2713 access_check (const char *name
, int mode
)
2719 if (stat (name
, &st
) < 0
2720 || S_ISDIR (st
.st_mode
))
2724 return access (name
, mode
);
2727 /* Callback for find_a_file. Appends the file name to the directory
2728 path. If the resulting file exists in the right mode, return the
2729 full pathname to the file. */
2731 struct file_at_path_info
{
2740 file_at_path (char *path
, void *data
)
2742 struct file_at_path_info
*info
= (struct file_at_path_info
*) data
;
2743 size_t len
= strlen (path
);
2745 memcpy (path
+ len
, info
->name
, info
->name_len
);
2746 len
+= info
->name_len
;
2748 /* Some systems have a suffix for executable files.
2749 So try appending that first. */
2750 if (info
->suffix_len
)
2752 memcpy (path
+ len
, info
->suffix
, info
->suffix_len
+ 1);
2753 if (access_check (path
, info
->mode
) == 0)
2758 if (access_check (path
, info
->mode
) == 0)
2764 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2765 access to check permissions. If DO_MULTI is true, search multilib
2766 paths then non-multilib paths, otherwise do not search multilib paths.
2767 Return 0 if not found, otherwise return its name, allocated with malloc. */
2770 find_a_file (const struct path_prefix
*pprefix
, const char *name
, int mode
,
2773 struct file_at_path_info info
;
2775 #ifdef DEFAULT_ASSEMBLER
2776 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2777 return xstrdup (DEFAULT_ASSEMBLER
);
2780 #ifdef DEFAULT_LINKER
2781 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2782 return xstrdup (DEFAULT_LINKER
);
2785 /* Determine the filename to execute (special case for absolute paths). */
2787 if (IS_ABSOLUTE_PATH (name
))
2789 if (access (name
, mode
) == 0)
2790 return xstrdup (name
);
2796 info
.suffix
= (mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "";
2797 info
.name_len
= strlen (info
.name
);
2798 info
.suffix_len
= strlen (info
.suffix
);
2801 return (char*) for_each_path (pprefix
, do_multi
,
2802 info
.name_len
+ info
.suffix_len
,
2803 file_at_path
, &info
);
2806 /* Ranking of prefixes in the sort list. -B prefixes are put before
2809 enum path_prefix_priority
2811 PREFIX_PRIORITY_B_OPT
,
2812 PREFIX_PRIORITY_LAST
2815 /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
2816 order according to PRIORITY. Within each PRIORITY, new entries are
2819 If WARN is nonzero, we will warn if no file is found
2820 through this prefix. WARN should point to an int
2821 which will be set to 1 if this entry is used.
2823 COMPONENT is the value to be passed to update_path.
2825 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2826 the complete value of machine_suffix.
2827 2 means try both machine_suffix and just_machine_suffix. */
2830 add_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2831 const char *component
, /* enum prefix_priority */ int priority
,
2832 int require_machine_suffix
, int os_multilib
)
2834 struct prefix_list
*pl
, **prev
;
2837 for (prev
= &pprefix
->plist
;
2838 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2839 prev
= &(*prev
)->next
)
2842 /* Keep track of the longest prefix. */
2844 prefix
= update_path (prefix
, component
);
2845 len
= strlen (prefix
);
2846 if (len
> pprefix
->max_len
)
2847 pprefix
->max_len
= len
;
2849 pl
= XNEW (struct prefix_list
);
2850 pl
->prefix
= prefix
;
2851 pl
->require_machine_suffix
= require_machine_suffix
;
2852 pl
->priority
= priority
;
2853 pl
->os_multilib
= os_multilib
;
2855 /* Insert after PREV. */
2860 /* Same as add_prefix, but prepending target_system_root to prefix. */
2861 /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
2863 add_sysrooted_prefix (struct path_prefix
*pprefix
, const char *prefix
,
2864 const char *component
,
2865 /* enum prefix_priority */ int priority
,
2866 int require_machine_suffix
, int os_multilib
)
2868 if (!IS_ABSOLUTE_PATH (prefix
))
2869 fatal ("system path '%s' is not absolute", prefix
);
2871 if (target_system_root
)
2873 if (target_sysroot_suffix
)
2874 prefix
= concat (target_sysroot_suffix
, prefix
, NULL
);
2875 prefix
= concat (target_system_root
, prefix
, NULL
);
2877 /* We have to override this because GCC's notion of sysroot
2878 moves along with GCC. */
2882 add_prefix (pprefix
, prefix
, component
, priority
,
2883 require_machine_suffix
, os_multilib
);
2886 /* Execute the command specified by the arguments on the current line of spec.
2887 When using pipes, this includes several piped-together commands
2888 with `|' between them.
2890 Return 0 if successful, -1 if failed. */
2896 int n_commands
; /* # of command. */
2898 struct pex_obj
*pex
;
2901 const char *prog
; /* program name. */
2902 const char **argv
; /* vector of args. */
2905 struct command
*commands
; /* each command buffer with above info. */
2907 gcc_assert (!processing_spec_function
);
2911 string
= find_a_file (&exec_prefixes
, argbuf
[0], X_OK
, false);
2912 argbuf
[0] = (string
) ? string
: argbuf
[0];
2913 insert_wrapper (wrapper_string
);
2916 /* Count # of piped commands. */
2917 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2918 if (strcmp (argbuf
[i
], "|") == 0)
2921 /* Get storage for each command. */
2922 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2924 /* Split argbuf into its separate piped processes,
2925 and record info about each one.
2926 Also search for the programs that are to be run. */
2928 commands
[0].prog
= argbuf
[0]; /* first command. */
2929 commands
[0].argv
= &argbuf
[0];
2931 if (!wrapper_string
)
2933 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
, false);
2934 commands
[0].argv
[0] = (string
) ? string
: commands
[0].argv
[0];
2937 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2938 if (strcmp (argbuf
[i
], "|") == 0)
2939 { /* each command. */
2940 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2941 fatal ("-pipe not supported");
2943 argbuf
[i
] = 0; /* termination of command args. */
2944 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2945 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2946 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
,
2949 commands
[n_commands
].argv
[0] = string
;
2953 argbuf
[argbuf_index
] = 0;
2955 /* If -v, print what we are about to do, and maybe query. */
2959 /* For help listings, put a blank line between sub-processes. */
2960 if (print_help_list
)
2961 fputc ('\n', stderr
);
2963 /* Print each piped command as a separate line. */
2964 for (i
= 0; i
< n_commands
; i
++)
2966 const char *const *j
;
2968 if (verbose_only_flag
)
2970 for (j
= commands
[i
].argv
; *j
; j
++)
2973 fprintf (stderr
, " \"");
2974 for (p
= *j
; *p
; ++p
)
2976 if (*p
== '"' || *p
== '\\' || *p
== '$')
2977 fputc ('\\', stderr
);
2980 fputc ('"', stderr
);
2984 for (j
= commands
[i
].argv
; *j
; j
++)
2985 fprintf (stderr
, " %s", *j
);
2987 /* Print a pipe symbol after all but the last command. */
2988 if (i
+ 1 != n_commands
)
2989 fprintf (stderr
, " |");
2990 fprintf (stderr
, "\n");
2993 if (verbose_only_flag
!= 0)
2995 /* verbose_only_flag should act as if the spec was
2996 executed, so increment execution_count before
2997 returning. This prevents spurious warnings about
2998 unused linker input files, etc. */
3003 notice ("\nGo ahead? (y or n) ");
3007 while (getchar () != '\n')
3010 if (i
!= 'y' && i
!= 'Y')
3015 #ifdef ENABLE_VALGRIND_CHECKING
3016 /* Run the each command through valgrind. To simplify prepending the
3017 path to valgrind and the option "-q" (for quiet operation unless
3018 something triggers), we allocate a separate argv array. */
3020 for (i
= 0; i
< n_commands
; i
++)
3026 for (argc
= 0; commands
[i
].argv
[argc
] != NULL
; argc
++)
3029 argv
= XALLOCAVEC (const char *, argc
+ 3);
3031 argv
[0] = VALGRIND_PATH
;
3033 for (j
= 2; j
< argc
+ 2; j
++)
3034 argv
[j
] = commands
[i
].argv
[j
- 2];
3037 commands
[i
].argv
= argv
;
3038 commands
[i
].prog
= argv
[0];
3042 /* Run each piped subprocess. */
3044 pex
= pex_init (PEX_USE_PIPES
| ((report_times
|| report_times_to_file
)
3045 ? PEX_RECORD_TIMES
: 0),
3046 programname
, temp_filename
);
3048 pfatal_with_name (_("pex_init failed"));
3050 for (i
= 0; i
< n_commands
; i
++)
3054 const char *string
= commands
[i
].argv
[0];
3056 errmsg
= pex_run (pex
,
3057 ((i
+ 1 == n_commands
? PEX_LAST
: 0)
3058 | (string
== commands
[i
].prog
? PEX_SEARCH
: 0)),
3059 string
, CONST_CAST (char **, commands
[i
].argv
),
3068 pfatal_with_name (errmsg
);
3072 if (string
!= commands
[i
].prog
)
3073 free (CONST_CAST (char *, string
));
3078 /* Wait for all the subprocesses to finish. */
3082 struct pex_time
*times
= NULL
;
3085 statuses
= (int *) alloca (n_commands
* sizeof (int));
3086 if (!pex_get_status (pex
, n_commands
, statuses
))
3087 pfatal_with_name (_("failed to get exit status"));
3089 if (report_times
|| report_times_to_file
)
3091 times
= (struct pex_time
*) alloca (n_commands
* sizeof (struct pex_time
));
3092 if (!pex_get_times (pex
, n_commands
, times
))
3093 pfatal_with_name (_("failed to get process times"));
3098 for (i
= 0; i
< n_commands
; ++i
)
3100 int status
= statuses
[i
];
3102 if (WIFSIGNALED (status
))
3105 /* SIGPIPE is a special case. It happens in -pipe mode
3106 when the compiler dies before the preprocessor is done,
3107 or the assembler dies before the compiler is done.
3108 There's generally been an error already, and this is
3109 just fallout. So don't generate another error unless
3110 we would otherwise have succeeded. */
3111 if (WTERMSIG (status
) == SIGPIPE
3112 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
3120 Internal error: %s (program %s)\n\
3121 Please submit a full bug report.\n\
3122 See %s for instructions.",
3123 strsignal (WTERMSIG (status
)), commands
[i
].prog
,
3126 else if (WIFEXITED (status
)
3127 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
3129 if (WEXITSTATUS (status
) > greatest_status
)
3130 greatest_status
= WEXITSTATUS (status
);
3134 if (report_times
|| report_times_to_file
)
3136 struct pex_time
*pt
= ×
[i
];
3139 ut
= ((double) pt
->user_seconds
3140 + (double) pt
->user_microseconds
/ 1.0e6
);
3141 st
= ((double) pt
->system_seconds
3142 + (double) pt
->system_microseconds
/ 1.0e6
);
3147 notice ("# %s %.2f %.2f\n", commands
[i
].prog
, ut
, st
);
3149 if (report_times_to_file
)
3152 const char *const *j
;
3154 fprintf (report_times_to_file
, "%g %g", ut
, st
);
3156 for (j
= &commands
[i
].prog
; *j
; j
= &commands
[i
].argv
[++c
])
3159 for (p
= *j
; *p
; ++p
)
3160 if (*p
== '"' || *p
== '\\' || *p
== '$'
3166 fprintf (report_times_to_file
, " \"");
3167 for (p
= *j
; *p
; ++p
)
3169 if (*p
== '"' || *p
== '\\' || *p
== '$')
3170 fputc ('\\', report_times_to_file
);
3171 fputc (*p
, report_times_to_file
);
3173 fputc ('"', report_times_to_file
);
3176 fprintf (report_times_to_file
, " %s", *j
);
3179 fputc ('\n', report_times_to_file
);
3189 /* Find all the switches given to us
3190 and make a vector describing them.
3191 The elements of the vector are strings, one per switch given.
3192 If a switch uses following arguments, then the `part1' field
3193 is the switch itself and the `args' field
3194 is a null-terminated vector containing the following arguments.
3195 Bits in the `live_cond' field are:
3196 SWITCH_LIVE to indicate this switch is true in a conditional spec.
3197 SWITCH_FALSE to indicate this switch is overridden by a later switch.
3198 SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
3199 The `validated' field is nonzero if any spec has looked at this switch;
3200 if it remains zero at the end of the run, it must be meaningless. */
3202 #define SWITCH_LIVE 0x1
3203 #define SWITCH_FALSE 0x2
3204 #define SWITCH_IGNORE 0x4
3210 unsigned int live_cond
;
3211 unsigned char validated
;
3212 unsigned char ordering
;
3215 static struct switchstr
*switches
;
3217 static int n_switches
;
3219 /* Set to zero if -fcompare-debug is disabled, positive if it's
3220 enabled and we're running the first compilation, negative if it's
3221 enabled and we're running the second compilation. For most of the
3222 time, it's in the range -1..1, but it can be temporarily set to 2
3223 or 3 to indicate that the -fcompare-debug flags didn't come from
3224 the command-line, but rather from the GCC_COMPARE_DEBUG environment
3225 variable, until a synthesized -fcompare-debug flag is added to the
3229 /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3230 int compare_debug_second
;
3232 /* Set to the flags that should be passed to the second compilation in
3233 a -fcompare-debug compilation. */
3234 const char *compare_debug_opt
;
3236 static struct switchstr
*switches_debug_check
[2];
3238 static int n_switches_debug_check
[2];
3240 static char *debug_check_temp_file
[2];
3242 /* Language is one of three things:
3244 1) The name of a real programming language.
3245 2) NULL, indicating that no one has figured out
3247 3) '*', indicating that the file should be passed
3252 const char *language
;
3253 struct compiler
*incompiler
;
3258 /* Also a vector of input files specified. */
3260 static struct infile
*infiles
;
3264 /* True if multiple input files are being compiled to a single
3267 static bool combine_inputs
;
3269 /* This counts the number of libraries added by lang_specific_driver, so that
3270 we can tell if there were any user supplied any files or libraries. */
3272 static int added_libraries
;
3274 /* And a vector of corresponding output files is made up later. */
3276 const char **outfiles
;
3278 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3280 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3281 is true if we should look for an executable suffix. DO_OBJ
3282 is true if we should look for an object suffix. */
3285 convert_filename (const char *name
, int do_exe ATTRIBUTE_UNUSED
,
3286 int do_obj ATTRIBUTE_UNUSED
)
3288 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3296 len
= strlen (name
);
3298 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3299 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3300 if (do_obj
&& len
> 2
3301 && name
[len
- 2] == '.'
3302 && name
[len
- 1] == 'o')
3304 obstack_grow (&obstack
, name
, len
- 2);
3305 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
3306 name
= XOBFINISH (&obstack
, const char *);
3310 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3311 /* If there is no filetype, make it the executable suffix (which includes
3312 the "."). But don't get confused if we have just "-o". */
3313 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
3316 for (i
= len
- 1; i
>= 0; i
--)
3317 if (IS_DIR_SEPARATOR (name
[i
]))
3320 for (i
++; i
< len
; i
++)
3324 obstack_grow (&obstack
, name
, len
);
3325 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
3326 strlen (TARGET_EXECUTABLE_SUFFIX
));
3327 name
= XOBFINISH (&obstack
, const char *);
3334 /* Display the command line switches accepted by gcc. */
3338 printf (_("Usage: %s [options] file...\n"), programname
);
3339 fputs (_("Options:\n"), stdout
);
3341 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
3342 fputs (_(" --help Display this information\n"), stdout
);
3343 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
3344 fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout
);
3345 fputs (_(" Display specific types of command line options\n"), stdout
);
3347 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
3348 fputs (_(" --version Display compiler version information\n"), stdout
);
3349 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
3350 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
3351 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
3352 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
3353 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
3354 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
3355 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
3356 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
3358 -print-multi-lib Display the mapping between command line options and\n\
3359 multiple library search directories\n"), stdout
);
3360 fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout
);
3361 fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout
);
3362 fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout
);
3363 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
3364 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
3365 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
3366 fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout
);
3367 fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout
);
3368 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
3369 fputs (_(" -combine Pass multiple source files to compiler at once\n"), stdout
);
3370 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
3371 fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout
);
3373 -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3374 prefixes to other gcc components\n"), stdout
);
3375 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
3376 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
3377 fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout
);
3378 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
3380 --sysroot=<directory> Use <directory> as the root directory for headers\n\
3381 and libraries\n"), stdout
);
3382 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
3383 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
3384 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
3385 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
3386 fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout
);
3387 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
3388 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
3389 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
3390 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
3392 -x <language> Specify the language of the following input files\n\
3393 Permissible languages include: c c++ assembler none\n\
3394 'none' means revert to the default behavior of\n\
3395 guessing the language based on the file's extension\n\
3399 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3400 passed on to the various sub-processes invoked by %s. In order to pass\n\
3401 other options on to these processes the -W<letter> options must be used.\n\
3404 /* The rest of the options are displayed by invocations of the various
3409 add_preprocessor_option (const char *option
, int len
)
3411 n_preprocessor_options
++;
3413 if (! preprocessor_options
)
3414 preprocessor_options
= XNEWVEC (char *, n_preprocessor_options
);
3416 preprocessor_options
= XRESIZEVEC (char *, preprocessor_options
,
3417 n_preprocessor_options
);
3419 preprocessor_options
[n_preprocessor_options
- 1] =
3420 save_string (option
, len
);
3424 add_assembler_option (const char *option
, int len
)
3426 n_assembler_options
++;
3428 if (! assembler_options
)
3429 assembler_options
= XNEWVEC (char *, n_assembler_options
);
3431 assembler_options
= XRESIZEVEC (char *, assembler_options
,
3432 n_assembler_options
);
3434 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3438 add_linker_option (const char *option
, int len
)
3442 if (! linker_options
)
3443 linker_options
= XNEWVEC (char *, n_linker_options
);
3445 linker_options
= XRESIZEVEC (char *, linker_options
, n_linker_options
);
3447 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3450 /* Create the vector `switches' and its contents.
3451 Store its length in `n_switches'. */
3454 process_command (int argc
, const char **argv
)
3459 const char *spec_lang
= 0;
3460 int last_language_n_infiles
;
3461 int lang_n_infiles
= 0;
3462 #ifdef MODIFY_TARGET_NAME
3463 int is_modify_target_name
;
3466 const char *tooldir_prefix
;
3467 char *(*get_relative_prefix
) (const char *, const char *,
3468 const char *) = NULL
;
3470 GET_ENVIRONMENT (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3474 added_libraries
= 0;
3476 /* Figure compiler version from version string. */
3478 compiler_version
= temp1
= xstrdup (version_string
);
3480 for (; *temp1
; ++temp1
)
3489 /* If there is a -V or -b option (or both), process it now, before
3490 trying to interpret the rest of the command line.
3491 Use heuristic that all configuration names must have at least
3492 one dash '-'. This allows us to pass options starting with -b. */
3493 if (argc
> 1 && argv
[1][0] == '-'
3494 && (argv
[1][1] == 'V'
3495 || (argv
[1][1] == 'b'
3496 && (argv
[1][2] == '\0'
3497 || NULL
!= strchr (argv
[1] + 2, '-')))))
3499 const char *new_version
= DEFAULT_TARGET_VERSION
;
3500 const char *new_machine
= DEFAULT_TARGET_MACHINE
;
3501 const char *progname
= argv
[0];
3509 while (argc
> 1 && argv
[1][0] == '-'
3510 && (argv
[1][1] == 'V'
3511 || (argv
[1][1] == 'b'
3512 && (argv
[1][2] == '\0'
3513 || NULL
!= strchr (argv
[1] + 2, '-')))))
3515 char opt
= argv
[1][1];
3517 if (argv
[1][2] != '\0')
3530 fatal ("'-%c' option must have argument", opt
);
3537 for (baselen
= strlen (progname
); baselen
> 0; baselen
--)
3538 if (IS_DIR_SEPARATOR (progname
[baselen
-1]))
3540 new_argv0
= XDUPVAR (char, progname
, baselen
,
3541 baselen
+ concat_length (new_version
, new_machine
,
3542 "-gcc-", NULL
) + 1);
3543 strcpy (new_argv0
+ baselen
, new_machine
);
3544 strcat (new_argv0
, "-gcc-");
3545 strcat (new_argv0
, new_version
);
3547 new_argv
= XDUPVEC (char *, argv
, argc
+ 1);
3548 new_argv
[0] = new_argv0
;
3550 errmsg
= pex_one (PEX_SEARCH
, new_argv0
, new_argv
, progname
, NULL
,
3551 NULL
, &status
, &err
);
3556 fatal ("couldn't run '%s': %s", new_argv0
, errmsg
);
3558 fatal ("couldn't run '%s': %s: %s", new_argv0
, errmsg
,
3564 /* Convert new-style -- options to old-style. */
3565 translate_options (&argc
,
3566 CONST_CAST2 (const char *const **, const char ***,
3569 /* Do language-specific adjustment/addition of flags. */
3570 lang_specific_driver (&argc
,
3571 CONST_CAST2 (const char *const **, const char ***,
3575 /* Handle any -no-canonical-prefixes flag early, to assign the function
3576 that builds relative prefixes. This function creates default search
3577 paths that are needed later in normal option handling. */
3579 for (i
= 1; i
< argc
; i
++)
3581 if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
3583 get_relative_prefix
= make_relative_prefix_ignore_links
;
3587 if (! get_relative_prefix
)
3588 get_relative_prefix
= make_relative_prefix
;
3590 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3591 see if we can create it from the pathname specified in argv[0]. */
3593 gcc_libexec_prefix
= standard_libexec_prefix
;
3595 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3596 if (!gcc_exec_prefix
)
3598 gcc_exec_prefix
= get_relative_prefix (argv
[0],
3599 standard_bindir_prefix
,
3600 standard_exec_prefix
);
3601 gcc_libexec_prefix
= get_relative_prefix (argv
[0],
3602 standard_bindir_prefix
,
3603 standard_libexec_prefix
);
3604 if (gcc_exec_prefix
)
3605 xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3609 /* make_relative_prefix requires a program name, but
3610 GCC_EXEC_PREFIX is typically a directory name with a trailing
3611 / (which is ignored by make_relative_prefix), so append a
3613 char *tmp_prefix
= concat (gcc_exec_prefix
, "gcc", NULL
);
3614 gcc_libexec_prefix
= get_relative_prefix (tmp_prefix
,
3615 standard_exec_prefix
,
3616 standard_libexec_prefix
);
3618 /* The path is unrelocated, so fallback to the original setting. */
3619 if (!gcc_libexec_prefix
)
3620 gcc_libexec_prefix
= standard_libexec_prefix
;
3626 /* From this point onward, gcc_exec_prefix is non-null if the toolchain
3627 is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
3628 or an automatically created GCC_EXEC_PREFIX from argv[0]. */
3630 if (gcc_exec_prefix
)
3632 int len
= strlen (gcc_exec_prefix
);
3634 if (len
> (int) sizeof ("/lib/gcc/") - 1
3635 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3637 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc/") + 1;
3638 if (IS_DIR_SEPARATOR (*temp
)
3639 && strncmp (temp
+ 1, "lib", 3) == 0
3640 && IS_DIR_SEPARATOR (temp
[4])
3641 && strncmp (temp
+ 5, "gcc", 3) == 0)
3642 len
-= sizeof ("/lib/gcc/") - 1;
3645 set_std_prefix (gcc_exec_prefix
, len
);
3646 add_prefix (&exec_prefixes
, gcc_libexec_prefix
, "GCC",
3647 PREFIX_PRIORITY_LAST
, 0, 0);
3648 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3649 PREFIX_PRIORITY_LAST
, 0, 0);
3652 /* COMPILER_PATH and LIBRARY_PATH have values
3653 that are lists of directory names with colons. */
3655 GET_ENVIRONMENT (temp
, "COMPILER_PATH");
3658 const char *startp
, *endp
;
3659 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3661 startp
= endp
= temp
;
3664 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3666 strncpy (nstore
, startp
, endp
- startp
);
3668 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3669 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3671 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3672 nstore
[endp
- startp
+ 1] = 0;
3675 nstore
[endp
- startp
] = 0;
3676 add_prefix (&exec_prefixes
, nstore
, 0,
3677 PREFIX_PRIORITY_LAST
, 0, 0);
3678 add_prefix (&include_prefixes
, nstore
, 0,
3679 PREFIX_PRIORITY_LAST
, 0, 0);
3682 endp
= startp
= endp
+ 1;
3689 GET_ENVIRONMENT (temp
, LIBRARY_PATH_ENV
);
3690 if (temp
&& *cross_compile
== '0')
3692 const char *startp
, *endp
;
3693 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3695 startp
= endp
= temp
;
3698 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3700 strncpy (nstore
, startp
, endp
- startp
);
3702 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3703 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3705 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3706 nstore
[endp
- startp
+ 1] = 0;
3709 nstore
[endp
- startp
] = 0;
3710 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3711 PREFIX_PRIORITY_LAST
, 0, 1);
3714 endp
= startp
= endp
+ 1;
3721 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3722 GET_ENVIRONMENT (temp
, "LPATH");
3723 if (temp
&& *cross_compile
== '0')
3725 const char *startp
, *endp
;
3726 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3728 startp
= endp
= temp
;
3731 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3733 strncpy (nstore
, startp
, endp
- startp
);
3735 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3736 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3738 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3739 nstore
[endp
- startp
+ 1] = 0;
3742 nstore
[endp
- startp
] = 0;
3743 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3744 PREFIX_PRIORITY_LAST
, 0, 1);
3747 endp
= startp
= endp
+ 1;
3754 /* Scan argv twice. Here, the first time, just count how many switches
3755 there will be in their vector, and how many input files in theirs.
3756 Here we also parse the switches that cc itself uses (e.g. -v). */
3758 for (i
= 1; i
< argc
; i
++)
3760 if (! strcmp (argv
[i
], "-dumpspecs"))
3762 struct spec_list
*sl
;
3764 for (sl
= specs
; sl
; sl
= sl
->next
)
3765 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3766 if (link_command_spec
)
3767 printf ("*link_command:\n%s\n\n", link_command_spec
);
3770 else if (! strcmp (argv
[i
], "-dumpversion"))
3772 printf ("%s\n", spec_version
);
3775 else if (! strcmp (argv
[i
], "-dumpmachine"))
3777 printf ("%s\n", spec_machine
);
3780 else if (strcmp (argv
[i
], "-fversion") == 0)
3782 /* translate_options () has turned --version into -fversion. */
3785 /* We will be passing a dummy file on to the sub-processes. */
3789 /* CPP driver cannot obtain switch from cc1_options. */
3791 add_preprocessor_option ("--version", strlen ("--version"));
3792 add_assembler_option ("--version", strlen ("--version"));
3793 add_linker_option ("--version", strlen ("--version"));
3795 else if (strcmp (argv
[i
], "-fhelp") == 0)
3797 /* translate_options () has turned --help into -fhelp. */
3798 print_help_list
= 1;
3800 /* We will be passing a dummy file on to the sub-processes. */
3804 /* CPP driver cannot obtain switch from cc1_options. */
3806 add_preprocessor_option ("--help", 6);
3807 add_assembler_option ("--help", 6);
3808 add_linker_option ("--help", 6);
3810 else if (strncmp (argv
[i
], "-fhelp=", 7) == 0)
3812 /* translate_options () has turned --help into -fhelp. */
3813 print_subprocess_help
= 2;
3815 /* We will be passing a dummy file on to the sub-processes. */
3819 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3821 /* translate_options() has turned --target-help into -ftarget-help. */
3822 print_subprocess_help
= 1;
3824 /* We will be passing a dummy file on to the sub-processes. */
3828 /* CPP driver cannot obtain switch from cc1_options. */
3830 add_preprocessor_option ("--target-help", 13);
3831 add_assembler_option ("--target-help", 13);
3832 add_linker_option ("--target-help", 13);
3834 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3836 pass_exit_codes
= 1;
3839 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3840 print_search_dirs
= 1;
3841 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3842 print_file_name
= "libgcc.a";
3843 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3844 print_file_name
= argv
[i
] + 17;
3845 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3846 print_prog_name
= argv
[i
] + 17;
3847 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3848 print_multi_lib
= 1;
3849 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3850 print_multi_directory
= 1;
3851 else if (! strcmp (argv
[i
], "-print-sysroot"))
3853 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
3854 print_multi_os_directory
= 1;
3855 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
3856 print_sysroot_headers_suffix
= 1;
3857 else if (! strcmp (argv
[i
], "-fcompare-debug-second"))
3859 compare_debug_second
= 1;
3862 else if (! strcmp (argv
[i
], "-fno-compare-debug"))
3864 argv
[i
] = "-fcompare-debug=";
3865 goto compare_debug_with_arg
;
3867 else if (! strcmp (argv
[i
], "-fcompare-debug"))
3869 argv
[i
] = "-fcompare-debug=-gtoggle";
3870 goto compare_debug_with_arg
;
3872 #define OPT "-fcompare-debug="
3873 else if (! strncmp (argv
[i
], OPT
, sizeof (OPT
) - 1))
3876 compare_debug_with_arg
:
3877 opt
= argv
[i
] + sizeof (OPT
) - 1;
3883 if (compare_debug
< 0)
3884 compare_debug_opt
= NULL
;
3886 compare_debug_opt
= opt
;
3889 else if (! strncmp (argv
[i
], "-Wa,", 4))
3892 /* Pass the rest of this option to the assembler. */
3894 /* Split the argument at commas. */
3896 for (j
= 4; argv
[i
][j
]; j
++)
3897 if (argv
[i
][j
] == ',')
3899 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3903 /* Record the part after the last comma. */
3904 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3906 else if (! strncmp (argv
[i
], "-Wp,", 4))
3909 /* Pass the rest of this option to the preprocessor. */
3911 /* Split the argument at commas. */
3913 for (j
= 4; argv
[i
][j
]; j
++)
3914 if (argv
[i
][j
] == ',')
3916 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3920 /* Record the part after the last comma. */
3921 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3923 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3924 /* The +e options to the C++ front-end. */
3926 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3929 /* Split the argument at commas. */
3930 for (j
= 3; argv
[i
][j
]; j
++)
3931 n_infiles
+= (argv
[i
][j
] == ',');
3933 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3936 fatal ("argument to '-Xlinker' is missing");
3941 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
3944 fatal ("argument to '-Xpreprocessor' is missing");
3946 add_preprocessor_option (argv
[i
+1], strlen (argv
[i
+1]));
3948 else if (strcmp (argv
[i
], "-Xassembler") == 0)
3951 fatal ("argument to '-Xassembler' is missing");
3953 add_assembler_option (argv
[i
+1], strlen (argv
[i
+1]));
3955 else if (strcmp (argv
[i
], "-l") == 0)
3958 fatal ("argument to '-l' is missing");
3963 else if (strncmp (argv
[i
], "-l", 2) == 0)
3965 else if (strcmp (argv
[i
], "-save-temps") == 0)
3967 save_temps_flag
= SAVE_TEMPS_CWD
;
3970 else if (strncmp (argv
[i
], "-save-temps=", 12) == 0)
3973 if (strcmp (argv
[i
]+12, "cwd") == 0)
3974 save_temps_flag
= SAVE_TEMPS_CWD
;
3975 else if (strcmp (argv
[i
]+12, "obj") == 0
3976 || strcmp (argv
[i
]+12, "object") == 0)
3977 save_temps_flag
= SAVE_TEMPS_OBJ
;
3979 fatal ("'%s' is an unknown -save-temps option", argv
[i
]);
3981 else if (strcmp (argv
[i
], "-no-canonical-prefixes") == 0)
3982 /* Already handled as a special case, so ignored here. */
3984 else if (strcmp (argv
[i
], "-combine") == 0)
3989 else if (strcmp (argv
[i
], "-specs") == 0)
3991 struct user_specs
*user
= XNEW (struct user_specs
);
3993 fatal ("argument to '-specs' is missing");
3995 user
->next
= (struct user_specs
*) 0;
3996 user
->filename
= argv
[i
];
3997 if (user_specs_tail
)
3998 user_specs_tail
->next
= user
;
4000 user_specs_head
= user
;
4001 user_specs_tail
= user
;
4003 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4005 struct user_specs
*user
= XNEW (struct user_specs
);
4006 if (strlen (argv
[i
]) == 7)
4007 fatal ("argument to '-specs=' is missing");
4009 user
->next
= (struct user_specs
*) 0;
4010 user
->filename
= argv
[i
] + 7;
4011 if (user_specs_tail
)
4012 user_specs_tail
->next
= user
;
4014 user_specs_head
= user
;
4015 user_specs_tail
= user
;
4017 else if (strcmp (argv
[i
], "-time") == 0)
4019 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4021 if (report_times_to_file
)
4022 fclose (report_times_to_file
);
4023 report_times_to_file
= fopen (argv
[i
] + sizeof ("-time=") - 1, "a");
4025 else if (strcmp (argv
[i
], "-pipe") == 0)
4027 /* -pipe has to go into the switches array as well as
4032 else if (strcmp (argv
[i
], "-wrapper") == 0)
4035 fatal ("argument to '-wrapper' is missing");
4037 wrapper_string
= argv
[i
];
4041 else if (strcmp (argv
[i
], "-###") == 0)
4043 /* This is similar to -v except that there is no execution
4044 of the commands and the echoed arguments are quoted. It
4045 is intended for use in shell scripts to capture the
4046 driver-generated command line. */
4047 verbose_only_flag
++;
4050 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4052 const char *p
= &argv
[i
][1];
4058 if (p
[1] && NULL
== strchr (argv
[i
] + 2, '-'))
4063 fatal ("'-%c' must come at the start of the command line", c
);
4071 if (p
[1] == 0 && i
+ 1 == argc
)
4072 fatal ("argument to '-B' is missing");
4078 len
= strlen (value
);
4080 /* Catch the case where the user has forgotten to append a
4081 directory separator to the path. Note, they may be using
4082 -B to add an executable name prefix, eg "i386-elf-", in
4083 order to distinguish between multiple installations of
4084 GCC in the same directory. Hence we must check to see
4085 if appending a directory separator actually makes a
4086 valid directory name. */
4087 if (! IS_DIR_SEPARATOR (value
[len
- 1])
4088 && is_directory (value
, false))
4090 char *tmp
= XNEWVEC (char, len
+ 2);
4091 strcpy (tmp
, value
);
4092 tmp
[len
] = DIR_SEPARATOR
;
4097 add_prefix (&exec_prefixes
, value
, NULL
,
4098 PREFIX_PRIORITY_B_OPT
, 0, 0);
4099 add_prefix (&startfile_prefixes
, value
, NULL
,
4100 PREFIX_PRIORITY_B_OPT
, 0, 0);
4101 add_prefix (&include_prefixes
, value
, NULL
,
4102 PREFIX_PRIORITY_B_OPT
, 0, 0);
4107 case 'v': /* Print our subcommands and print versions. */
4109 /* If they do anything other than exactly `-v', don't set
4110 verbose_flag; rather, continue on to give the error. */
4128 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
4133 /* Forward scan, just in case -S or -c is specified
4140 if (argv
[j
][0] == '-')
4142 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
4148 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
4149 j
+= skip
- (argv
[j
][2] != 0);
4150 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
4157 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4159 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
, 0);
4161 argv
[i
] = convert_filename (argv
[i
], ! have_c
, 0);
4163 /* Save the output name in case -save-temps=obj was used. */
4164 save_temps_prefix
= xstrdup ((p
[1] == 0) ? argv
[i
+ 1] : argv
[i
] + 1);
4170 #ifdef MODIFY_TARGET_NAME
4171 is_modify_target_name
= 0;
4173 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4174 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4176 char *new_name
= XNEWVEC (char, strlen (modify_target
[j
].str
)
4177 + strlen (spec_machine
));
4180 int made_addition
= 0;
4182 is_modify_target_name
= 1;
4183 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
4185 if (modify_target
[j
].add_del
== DELETE
4186 && (! strncmp (q
, modify_target
[j
].str
,
4187 strlen (modify_target
[j
].str
))))
4188 p
+= strlen (modify_target
[j
].str
);
4189 else if (modify_target
[j
].add_del
== ADD
4190 && ! made_addition
&& *p
== '-')
4192 for (r
= modify_target
[j
].str
; *r
!= 0; )
4200 spec_machine
= new_name
;
4203 if (is_modify_target_name
)
4209 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4210 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4211 else if (WORD_SWITCH_TAKES_ARG (p
))
4212 i
+= WORD_SWITCH_TAKES_ARG (p
);
4222 /* If -save-temps=obj and -o name, create the prefix to use for %b.
4223 Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
4224 if (save_temps_flag
== SAVE_TEMPS_OBJ
&& save_temps_prefix
!= NULL
)
4226 save_temps_length
= strlen (save_temps_prefix
);
4227 temp
= strrchr (lbasename (save_temps_prefix
), '.');
4230 save_temps_length
-= strlen (temp
);
4231 save_temps_prefix
[save_temps_length
] = '\0';
4235 else if (save_temps_prefix
!= NULL
)
4237 free (save_temps_prefix
);
4238 save_temps_prefix
= NULL
;
4241 if (save_temps_flag
&& use_pipes
)
4243 /* -save-temps overrides -pipe, so that temp files are produced */
4244 if (save_temps_flag
)
4245 error ("warning: -pipe ignored because -save-temps specified");
4251 const char *gcd
= getenv ("GCC_COMPARE_DEBUG");
4253 if (gcd
&& gcd
[0] == '-')
4256 compare_debug_opt
= gcd
;
4259 else if (gcd
&& *gcd
&& strcmp (gcd
, "0"))
4262 compare_debug_opt
= "-gtoggle";
4266 else if (compare_debug
< 0)
4269 gcc_assert (!compare_debug_opt
);
4272 /* Set up the search paths. We add directories that we expect to
4273 contain GNU Toolchain components before directories specified by
4274 the machine description so that we will find GNU components (like
4275 the GNU assembler) before those of the host system. */
4277 /* If we don't know where the toolchain has been installed, use the
4278 configured-in locations. */
4279 if (!gcc_exec_prefix
)
4282 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "GCC",
4283 PREFIX_PRIORITY_LAST
, 1, 0);
4284 add_prefix (&exec_prefixes
, standard_libexec_prefix
, "BINUTILS",
4285 PREFIX_PRIORITY_LAST
, 2, 0);
4286 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
4287 PREFIX_PRIORITY_LAST
, 2, 0);
4289 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
4290 PREFIX_PRIORITY_LAST
, 1, 0);
4293 gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix
));
4294 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
4295 dir_separator_str
, NULL
);
4297 /* Look for tools relative to the location from which the driver is
4298 running, or, if that is not available, the configured prefix. */
4300 = concat (gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
4301 spec_machine
, dir_separator_str
,
4302 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
4304 add_prefix (&exec_prefixes
,
4305 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
4306 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 0);
4307 add_prefix (&startfile_prefixes
,
4308 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
4309 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, 1);
4311 #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
4312 /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
4313 then consider it to relocate with the rest of the GCC installation
4314 if GCC_EXEC_PREFIX is set.
4315 ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
4316 if (target_system_root
&& gcc_exec_prefix
)
4318 char *tmp_prefix
= get_relative_prefix (argv
[0],
4319 standard_bindir_prefix
,
4320 target_system_root
);
4321 if (tmp_prefix
&& access_check (tmp_prefix
, F_OK
) == 0)
4323 target_system_root
= tmp_prefix
;
4324 target_system_root_changed
= 1;
4329 /* More prefixes are enabled in main, after we read the specs file
4330 and determine whether this is cross-compilation or not. */
4332 /* Then create the space for the vectors and scan again. */
4334 switches
= XNEWVEC (struct switchstr
, n_switches
+ 1);
4335 infiles
= XNEWVEC (struct infile
, n_infiles
+ 1);
4338 last_language_n_infiles
= -1;
4340 /* This, time, copy the text of each switch and store a pointer
4341 to the copy in the vector of switches.
4342 Store all the infiles in their vector. */
4344 for (i
= 1; i
< argc
; i
++)
4346 /* Just skip the switches that were handled by the preceding loop. */
4347 #ifdef MODIFY_TARGET_NAME
4348 is_modify_target_name
= 0;
4350 for (j
= 0; j
< ARRAY_SIZE (modify_target
); j
++)
4351 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
4352 is_modify_target_name
= 1;
4354 if (is_modify_target_name
)
4358 if (! strncmp (argv
[i
], "-Wa,", 4))
4360 else if (! strncmp (argv
[i
], "-Wp,", 4))
4362 else if (! strcmp (argv
[i
], "-no-canonical-prefixes"))
4364 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
4366 else if (! strcmp (argv
[i
], "-print-search-dirs"))
4368 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
4370 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
4372 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
4374 else if (! strcmp (argv
[i
], "-print-multi-lib"))
4376 else if (! strcmp (argv
[i
], "-print-multi-directory"))
4378 else if (! strcmp (argv
[i
], "-print-sysroot"))
4380 else if (! strcmp (argv
[i
], "-print-multi-os-directory"))
4382 else if (! strcmp (argv
[i
], "-print-sysroot-headers-suffix"))
4384 else if (! strncmp (argv
[i
], "--sysroot=", strlen ("--sysroot=")))
4386 target_system_root
= argv
[i
] + strlen ("--sysroot=");
4387 target_system_root_changed
= 1;
4389 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
4391 /* Compensate for the +e options to the C++ front-end;
4392 they're there simply for cfront call-compatibility. We do
4393 some magic in default_compilers to pass them down properly.
4394 Note we deliberately start at the `+' here, to avoid passing
4395 -e0 or -e1 down into the linker. */
4396 switches
[n_switches
].part1
= &argv
[i
][0];
4397 switches
[n_switches
].args
= 0;
4398 switches
[n_switches
].live_cond
= 0;
4399 switches
[n_switches
].validated
= 0;
4402 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
4405 /* Split the argument at commas. */
4407 for (j
= 4; argv
[i
][j
]; j
++)
4408 if (argv
[i
][j
] == ',')
4410 infiles
[n_infiles
].language
= "*";
4411 infiles
[n_infiles
++].name
4412 = save_string (argv
[i
] + prev
, j
- prev
);
4415 /* Record the part after the last comma. */
4416 infiles
[n_infiles
].language
= "*";
4417 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
4419 else if (strcmp (argv
[i
], "-Xlinker") == 0)
4421 infiles
[n_infiles
].language
= "*";
4422 infiles
[n_infiles
++].name
= argv
[++i
];
4424 /* Xassembler and Xpreprocessor were already handled in the first argv
4425 scan, so all we need to do here is ignore them and their argument. */
4426 else if (strcmp (argv
[i
], "-Xassembler") == 0)
4428 else if (strcmp (argv
[i
], "-Xpreprocessor") == 0)
4430 else if (strcmp (argv
[i
], "-l") == 0)
4431 { /* POSIX allows separation of -l and the lib arg;
4432 canonicalize by concatenating -l with its arg */
4433 infiles
[n_infiles
].language
= "*";
4434 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
4436 else if (strncmp (argv
[i
], "-l", 2) == 0)
4438 infiles
[n_infiles
].language
= "*";
4439 infiles
[n_infiles
++].name
= argv
[i
];
4441 else if (strcmp (argv
[i
], "-wrapper") == 0)
4443 else if (strcmp (argv
[i
], "-specs") == 0)
4445 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
4447 else if (strcmp (argv
[i
], "-time") == 0)
4449 else if (strncmp (argv
[i
], "-time=", sizeof ("-time=") - 1) == 0)
4451 else if (strcmp (argv
[i
], "-###") == 0)
4453 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
4455 const char *p
= &argv
[i
][1];
4460 if (p
[1] == 0 && i
+ 1 == argc
)
4461 fatal ("argument to '-x' is missing");
4463 spec_lang
= argv
[++i
];
4466 if (! strcmp (spec_lang
, "none"))
4467 /* Suppress the warning if -xnone comes after the last input
4468 file, because alternate command interfaces like g++ might
4469 find it useful to place -xnone after each input file. */
4472 last_language_n_infiles
= n_infiles
;
4475 switches
[n_switches
].part1
= p
;
4476 /* Deal with option arguments in separate argv elements. */
4477 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4478 || WORD_SWITCH_TAKES_ARG (p
))
4481 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4485 /* Count only the option arguments in separate argv elements. */
4486 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4488 if (i
+ n_args
>= argc
)
4489 fatal ("argument to '-%s' is missing", p
);
4490 switches
[n_switches
].args
4491 = XNEWVEC (const char *, n_args
+ 1);
4493 switches
[n_switches
].args
[j
++] = argv
[++i
];
4494 /* Null-terminate the vector. */
4495 switches
[n_switches
].args
[j
] = 0;
4497 else if (strchr (switches_need_spaces
, c
))
4499 /* On some systems, ld cannot handle some options without
4500 a space. So split the option from its argument. */
4501 char *part1
= XNEWVEC (char, 2);
4505 switches
[n_switches
].part1
= part1
;
4506 switches
[n_switches
].args
= XNEWVEC (const char *, 2);
4507 switches
[n_switches
].args
[0] = xstrdup (p
+1);
4508 switches
[n_switches
].args
[1] = 0;
4511 switches
[n_switches
].args
= 0;
4513 switches
[n_switches
].live_cond
= 0;
4514 switches
[n_switches
].validated
= 0;
4515 switches
[n_switches
].ordering
= 0;
4516 /* These are always valid, since gcc.c itself understands the
4517 first four and gfortranspec.c understands -static-libgfortran. */
4518 if (!strcmp (p
, "save-temps")
4519 || !strcmp (p
, "static-libgcc")
4520 || !strcmp (p
, "shared-libgcc")
4521 || !strcmp (p
, "pipe")
4522 || !strcmp (p
, "static-libgfortran"))
4523 switches
[n_switches
].validated
= 1;
4526 char ch
= switches
[n_switches
].part1
[0];
4528 switches
[n_switches
].validated
= 1;
4534 #ifdef HAVE_TARGET_OBJECT_SUFFIX
4535 argv
[i
] = convert_filename (argv
[i
], 0, access (argv
[i
], F_OK
));
4538 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
4540 perror_with_name (argv
[i
]);
4545 infiles
[n_infiles
].language
= spec_lang
;
4546 infiles
[n_infiles
++].name
= argv
[i
];
4551 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
4552 error ("warning: '-x %s' after last input file has no effect", spec_lang
);
4554 if (compare_debug
== 2 || compare_debug
== 3)
4556 switches
[n_switches
].part1
= concat ("fcompare-debug=",
4559 switches
[n_switches
].args
= 0;
4560 switches
[n_switches
].live_cond
= 0;
4561 switches
[n_switches
].validated
= 0;
4562 switches
[n_switches
].ordering
= 0;
4567 /* Ensure we only invoke each subprocess once. */
4568 if (print_subprocess_help
|| print_help_list
|| print_version
)
4572 /* Create a dummy input file, so that we can pass
4573 the help option on to the various sub-processes. */
4574 infiles
[0].language
= "c";
4575 infiles
[0].name
= "help-dummy";
4578 switches
[n_switches
].part1
= 0;
4579 infiles
[n_infiles
].name
= 0;
4582 /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
4583 and place that in the environment. */
4586 set_collect_gcc_options (void)
4591 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4593 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4594 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
4597 for (i
= 0; (int) i
< n_switches
; i
++)
4599 const char *const *args
;
4602 obstack_grow (&collect_obstack
, " ", 1);
4606 /* Ignore elided switches. */
4607 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) != 0)
4610 /* Don't use -fwhole-program when compiling the init and fini routines,
4611 since we'd wrongly assume that the routines aren't needed. */
4612 if (strcmp (switches
[i
].part1
, "fwhole-program") == 0)
4615 obstack_grow (&collect_obstack
, "'-", 2);
4616 q
= switches
[i
].part1
;
4617 while ((p
= strchr (q
, '\'')))
4619 obstack_grow (&collect_obstack
, q
, p
- q
);
4620 obstack_grow (&collect_obstack
, "'\\''", 4);
4623 obstack_grow (&collect_obstack
, q
, strlen (q
));
4624 obstack_grow (&collect_obstack
, "'", 1);
4626 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4628 obstack_grow (&collect_obstack
, " '", 2);
4630 while ((p
= strchr (q
, '\'')))
4632 obstack_grow (&collect_obstack
, q
, p
- q
);
4633 obstack_grow (&collect_obstack
, "'\\''", 4);
4636 obstack_grow (&collect_obstack
, q
, strlen (q
));
4637 obstack_grow (&collect_obstack
, "'", 1);
4640 obstack_grow (&collect_obstack
, "\0", 1);
4641 xputenv (XOBFINISH (&collect_obstack
, char *));
4644 /* Process a spec string, accumulating and running commands. */
4646 /* These variables describe the input file name.
4647 input_file_number is the index on outfiles of this file,
4648 so that the output file name can be stored for later use by %o.
4649 input_basename is the start of the part of the input file
4650 sans all directory names, and basename_length is the number
4651 of characters starting there excluding the suffix .c or whatever. */
4653 static const char *input_filename
;
4654 static int input_file_number
;
4655 size_t input_filename_length
;
4656 static int basename_length
;
4657 static int suffixed_basename_length
;
4658 static const char *input_basename
;
4659 static const char *input_suffix
;
4660 #ifndef HOST_LACKS_INODE_NUMBERS
4661 static struct stat input_stat
;
4663 static int input_stat_set
;
4665 /* The compiler used to process the current input file. */
4666 static struct compiler
*input_file_compiler
;
4668 /* These are variables used within do_spec and do_spec_1. */
4670 /* Nonzero if an arg has been started and not yet terminated
4671 (with space, tab or newline). */
4672 static int arg_going
;
4674 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4675 is a temporary file name. */
4676 static int delete_this_arg
;
4678 /* Nonzero means %w has been seen; the next arg to be terminated
4679 is the output file name of this compilation. */
4680 static int this_is_output_file
;
4682 /* Nonzero means %s has been seen; the next arg to be terminated
4683 is the name of a library file and we should try the standard
4684 search dirs for it. */
4685 static int this_is_library_file
;
4687 /* Nonzero means that the input of this command is coming from a pipe. */
4688 static int input_from_pipe
;
4690 /* Nonnull means substitute this for any suffix when outputting a switches
4692 static const char *suffix_subst
;
4694 /* If there is an argument being accumulated, terminate it and store it. */
4697 end_going_arg (void)
4703 obstack_1grow (&obstack
, 0);
4704 string
= XOBFINISH (&obstack
, const char *);
4705 if (this_is_library_file
)
4706 string
= find_file (string
);
4707 store_arg (string
, delete_this_arg
, this_is_output_file
);
4708 if (this_is_output_file
)
4709 outfiles
[input_file_number
] = string
;
4715 /* Parse the WRAPPER string which is a comma separated list of the command line
4716 and insert them into the beginning of argbuf. */
4719 insert_wrapper (const char *wrapper
)
4723 char *buf
= xstrdup (wrapper
);
4732 while ((p
= strchr (p
, ',')) != NULL
);
4734 if (argbuf_index
+ n
>= argbuf_length
)
4736 argbuf_length
= argbuf_length
* 2;
4737 while (argbuf_length
< argbuf_index
+ n
)
4739 argbuf
= XRESIZEVEC (const char *, argbuf
, argbuf_length
);
4741 for (i
= argbuf_index
- 1; i
>= 0; i
--)
4742 argbuf
[i
+ n
] = argbuf
[i
];
4755 while ((p
= strchr (p
, ',')) != NULL
);
4756 gcc_assert (i
== n
);
4760 /* Process the spec SPEC and run the commands specified therein.
4761 Returns 0 if the spec is successfully processed; -1 if failed. */
4764 do_spec (const char *spec
)
4768 value
= do_spec_2 (spec
);
4770 /* Force out any unfinished command.
4771 If -pipe, this forces out the last command if it ended in `|'. */
4774 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4777 set_collect_gcc_options ();
4779 if (argbuf_index
> 0)
4787 do_spec_2 (const char *spec
)
4793 delete_this_arg
= 0;
4794 this_is_output_file
= 0;
4795 this_is_library_file
= 0;
4796 input_from_pipe
= 0;
4797 suffix_subst
= NULL
;
4799 result
= do_spec_1 (spec
, 0, NULL
);
4807 /* Process the given spec string and add any new options to the end
4808 of the switches/n_switches array. */
4811 do_option_spec (const char *name
, const char *spec
)
4813 unsigned int i
, value_count
, value_len
;
4814 const char *p
, *q
, *value
;
4815 char *tmp_spec
, *tmp_spec_p
;
4817 if (configure_default_options
[0].name
== NULL
)
4820 for (i
= 0; i
< ARRAY_SIZE (configure_default_options
); i
++)
4821 if (strcmp (configure_default_options
[i
].name
, name
) == 0)
4823 if (i
== ARRAY_SIZE (configure_default_options
))
4826 value
= configure_default_options
[i
].value
;
4827 value_len
= strlen (value
);
4829 /* Compute the size of the final spec. */
4832 while ((p
= strstr (p
, "%(VALUE)")) != NULL
)
4838 /* Replace each %(VALUE) by the specified value. */
4839 tmp_spec
= (char *) alloca (strlen (spec
) + 1
4840 + value_count
* (value_len
- strlen ("%(VALUE)")));
4841 tmp_spec_p
= tmp_spec
;
4843 while ((p
= strstr (q
, "%(VALUE)")) != NULL
)
4845 memcpy (tmp_spec_p
, q
, p
- q
);
4846 tmp_spec_p
= tmp_spec_p
+ (p
- q
);
4847 memcpy (tmp_spec_p
, value
, value_len
);
4848 tmp_spec_p
+= value_len
;
4849 q
= p
+ strlen ("%(VALUE)");
4851 strcpy (tmp_spec_p
, q
);
4853 do_self_spec (tmp_spec
);
4856 /* Process the given spec string and add any new options to the end
4857 of the switches/n_switches array. */
4860 do_self_spec (const char *spec
)
4863 do_spec_1 (" ", 0, NULL
);
4865 if (argbuf_index
> 0)
4869 switches
= XRESIZEVEC (struct switchstr
, switches
,
4870 n_switches
+ argbuf_index
+ 1);
4872 for (i
= 0; i
< argbuf_index
; i
++)
4874 struct switchstr
*sw
;
4875 const char *p
= argbuf
[i
];
4878 /* Each switch should start with '-'. */
4880 fatal ("switch '%s' does not start with '-'", argbuf
[i
]);
4885 sw
= &switches
[n_switches
++];
4891 /* Deal with option arguments in separate argv elements. */
4892 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
4893 || WORD_SWITCH_TAKES_ARG (p
))
4896 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
4900 /* Count only the option arguments in separate argv elements. */
4901 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
4903 if (i
+ n_args
>= argbuf_index
)
4904 fatal ("argument to '-%s' is missing", p
);
4906 = XNEWVEC (const char *, n_args
+ 1);
4908 sw
->args
[j
++] = argbuf
[++i
];
4909 /* Null-terminate the vector. */
4912 else if (strchr (switches_need_spaces
, c
))
4914 /* On some systems, ld cannot handle some options without
4915 a space. So split the option from its argument. */
4916 char *part1
= XNEWVEC (char, 2);
4921 sw
->args
= XNEWVEC (const char *, 2);
4922 sw
->args
[0] = xstrdup (p
+1);
4929 switches
[n_switches
].part1
= 0;
4933 /* Callback for processing %D and %I specs. */
4935 struct spec_path_info
{
4940 bool separate_options
;
4944 spec_path (char *path
, void *data
)
4946 struct spec_path_info
*info
= (struct spec_path_info
*) data
;
4950 if (info
->omit_relative
&& !IS_ABSOLUTE_PATH (path
))
4953 if (info
->append_len
!= 0)
4955 len
= strlen (path
);
4956 memcpy (path
+ len
, info
->append
, info
->append_len
+ 1);
4959 if (!is_directory (path
, true))
4962 do_spec_1 (info
->option
, 1, NULL
);
4963 if (info
->separate_options
)
4964 do_spec_1 (" ", 0, NULL
);
4966 if (info
->append_len
== 0)
4968 len
= strlen (path
);
4969 save
= path
[len
- 1];
4970 if (IS_DIR_SEPARATOR (path
[len
- 1]))
4971 path
[len
- 1] = '\0';
4974 do_spec_1 (path
, 1, NULL
);
4975 do_spec_1 (" ", 0, NULL
);
4977 /* Must not damage the original path. */
4978 if (info
->append_len
== 0)
4979 path
[len
- 1] = save
;
4984 /* Create a temporary FILE with the contents of ARGV. Add @FILE to the
4988 create_at_file (char **argv
)
4990 char *temp_file
= make_temp_file ("");
4991 char *at_argument
= concat ("@", temp_file
, NULL
);
4992 FILE *f
= fopen (temp_file
, "w");
4996 fatal ("could not open temporary response file %s",
4999 status
= writeargv (argv
, f
);
5002 fatal ("could not write to temporary response file %s",
5005 status
= fclose (f
);
5008 fatal ("could not close temporary response file %s",
5011 store_arg (at_argument
, 0, 0);
5013 record_temp_file (temp_file
, !save_temps_flag
, !save_temps_flag
);
5016 /* True if we should compile INFILE. */
5019 compile_input_file_p (struct infile
*infile
)
5021 if ((!infile
->language
) || (infile
->language
[0] != '*'))
5022 if (infile
->incompiler
== input_file_compiler
)
5027 /* Process the sub-spec SPEC as a portion of a larger spec.
5028 This is like processing a whole spec except that we do
5029 not initialize at the beginning and we do not supply a
5030 newline by default at the end.
5031 INSWITCH nonzero means don't process %-sequences in SPEC;
5032 in this case, % is treated as an ordinary character.
5033 This is used while substituting switches.
5034 INSWITCH nonzero also causes SPC not to terminate an argument.
5036 Value is zero unless a line was finished
5037 and the command on that line reported an error. */
5040 do_spec_1 (const char *spec
, int inswitch
, const char *soft_matched_part
)
5042 const char *p
= spec
;
5048 /* If substituting a switch, treat all chars like letters.
5049 Otherwise, NL, SPC, TAB and % are special. */
5050 switch (inswitch
? 'a' : c
)
5055 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
5057 /* A `|' before the newline means use a pipe here,
5058 but only if -pipe was specified.
5059 Otherwise, execute now and don't pass the `|' as an arg. */
5062 input_from_pipe
= 1;
5069 set_collect_gcc_options ();
5071 if (argbuf_index
> 0)
5077 /* Reinitialize for a new command, and for a new argument. */
5080 delete_this_arg
= 0;
5081 this_is_output_file
= 0;
5082 this_is_library_file
= 0;
5083 input_from_pipe
= 0;
5090 obstack_1grow (&obstack
, c
);
5098 /* Reinitialize for a new argument. */
5099 delete_this_arg
= 0;
5100 this_is_output_file
= 0;
5101 this_is_library_file
= 0;
5108 fatal ("spec '%s' invalid", spec
);
5111 if (save_temps_length
)
5112 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5114 obstack_grow (&obstack
, input_basename
, basename_length
);
5115 if (compare_debug
< 0)
5116 obstack_grow (&obstack
, ".gk", 3);
5121 if (save_temps_length
)
5122 obstack_grow (&obstack
, save_temps_prefix
, save_temps_length
);
5124 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
5125 if (compare_debug
< 0)
5126 obstack_grow (&obstack
, ".gk", 3);
5131 delete_this_arg
= 2;
5134 /* Dump out the directories specified with LIBRARY_PATH,
5135 followed by the absolute directories
5136 that we search for startfiles. */
5139 struct spec_path_info info
;
5142 info
.append_len
= 0;
5143 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
5144 /* Used on systems which record the specified -L dirs
5145 and use them to search for dynamic linking.
5146 Relative directories always come from -B,
5147 and it is better not to use them for searching
5148 at run time. In particular, stage1 loses. */
5149 info
.omit_relative
= true;
5151 info
.omit_relative
= false;
5153 info
.separate_options
= false;
5155 for_each_path (&startfile_prefixes
, true, 0, spec_path
, &info
);
5160 /* %efoo means report an error with `foo' as error message
5161 and don't execute any more commands for this file. */
5165 while (*p
!= 0 && *p
!= '\n')
5167 buf
= (char *) alloca (p
- q
+ 1);
5168 strncpy (buf
, q
, p
- q
);
5175 /* %nfoo means report a notice with `foo' on stderr. */
5179 while (*p
!= 0 && *p
!= '\n')
5181 buf
= (char *) alloca (p
- q
+ 1);
5182 strncpy (buf
, q
, p
- q
);
5184 notice ("%s\n", buf
);
5194 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
5195 defined, and it is not a directory, and it is
5196 writable, use it. Otherwise, treat this like any
5197 other temporary file. */
5199 if ((!save_temps_flag
)
5200 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
5201 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
5203 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
5204 strlen (HOST_BIT_BUCKET
));
5205 delete_this_arg
= 0;
5210 goto create_temp_file
;
5214 obstack_1grow (&obstack
, '-');
5215 delete_this_arg
= 0;
5218 /* consume suffix */
5219 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5221 if (p
[0] == '%' && p
[1] == 'O')
5226 goto create_temp_file
;
5230 /* consume suffix */
5231 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5233 if (p
[0] == '%' && p
[1] == 'O')
5238 goto create_temp_file
;
5244 struct temp_name
*t
;
5246 const char *suffix
= p
;
5247 char *saved_suffix
= NULL
;
5249 while (*p
== '.' || ISALNUM ((unsigned char) *p
))
5251 suffix_length
= p
- suffix
;
5252 if (p
[0] == '%' && p
[1] == 'O')
5255 /* We don't support extra suffix characters after %O. */
5256 if (*p
== '.' || ISALNUM ((unsigned char) *p
))
5257 fatal ("spec '%s' has invalid '%%0%c'", spec
, *p
);
5258 if (suffix_length
== 0)
5259 suffix
= TARGET_OBJECT_SUFFIX
;
5263 = XNEWVEC (char, suffix_length
5264 + strlen (TARGET_OBJECT_SUFFIX
));
5265 strncpy (saved_suffix
, suffix
, suffix_length
);
5266 strcpy (saved_suffix
+ suffix_length
,
5267 TARGET_OBJECT_SUFFIX
);
5269 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
5272 if (compare_debug
< 0)
5274 suffix
= concat (".gk", suffix
, NULL
);
5278 /* If -save-temps=obj and -o were specified, use that for the
5280 if (save_temps_length
)
5283 temp_filename_length
5284 = save_temps_length
+ suffix_length
+ 1;
5285 tmp
= (char *) alloca (temp_filename_length
);
5286 memcpy (tmp
, save_temps_prefix
, save_temps_length
);
5287 memcpy (tmp
+ save_temps_length
, suffix
, suffix_length
);
5288 tmp
[save_temps_length
+ suffix_length
] = '\0';
5289 temp_filename
= save_string (tmp
,
5290 temp_filename_length
+ 1);
5291 obstack_grow (&obstack
, temp_filename
,
5292 temp_filename_length
);
5294 delete_this_arg
= 0;
5298 /* If the input_filename has the same suffix specified
5299 for the %g, %u, or %U, and -save-temps is specified,
5300 we could end up using that file as an intermediate
5301 thus clobbering the user's source file (.e.g.,
5302 gcc -save-temps foo.s would clobber foo.s with the
5303 output of cpp0). So check for this condition and
5304 generate a temp file as the intermediate. */
5306 if (save_temps_flag
)
5309 temp_filename_length
= basename_length
+ suffix_length
+ 1;
5310 tmp
= (char *) alloca (temp_filename_length
);
5311 memcpy (tmp
, input_basename
, basename_length
);
5312 memcpy (tmp
+ basename_length
, suffix
, suffix_length
);
5313 tmp
[basename_length
+ suffix_length
] = '\0';
5314 temp_filename
= tmp
;
5316 if (strcmp (temp_filename
, input_filename
) != 0)
5318 #ifndef HOST_LACKS_INODE_NUMBERS
5319 struct stat st_temp
;
5321 /* Note, set_input() resets input_stat_set to 0. */
5322 if (input_stat_set
== 0)
5324 input_stat_set
= stat (input_filename
, &input_stat
);
5325 if (input_stat_set
>= 0)
5329 /* If we have the stat for the input_filename
5330 and we can do the stat for the temp_filename
5331 then the they could still refer to the same
5332 file if st_dev/st_ino's are the same. */
5333 if (input_stat_set
!= 1
5334 || stat (temp_filename
, &st_temp
) < 0
5335 || input_stat
.st_dev
!= st_temp
.st_dev
5336 || input_stat
.st_ino
!= st_temp
.st_ino
)
5338 /* Just compare canonical pathnames. */
5339 char* input_realname
= lrealpath (input_filename
);
5340 char* temp_realname
= lrealpath (temp_filename
);
5341 bool files_differ
= strcmp (input_realname
, temp_realname
);
5342 free (input_realname
);
5343 free (temp_realname
);
5347 temp_filename
= save_string (temp_filename
,
5348 temp_filename_length
+ 1);
5349 obstack_grow (&obstack
, temp_filename
,
5350 temp_filename_length
);
5352 delete_this_arg
= 0;
5358 /* See if we already have an association of %g/%u/%U and
5360 for (t
= temp_names
; t
; t
= t
->next
)
5361 if (t
->length
== suffix_length
5362 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
5363 && t
->unique
== (c
== 'u' || c
== 'U' || c
== 'j'))
5366 /* Make a new association if needed. %u and %j
5368 if (t
== 0 || c
== 'u' || c
== 'j')
5372 t
= XNEW (struct temp_name
);
5373 t
->next
= temp_names
;
5376 t
->length
= suffix_length
;
5379 t
->suffix
= saved_suffix
;
5380 saved_suffix
= NULL
;
5383 t
->suffix
= save_string (suffix
, suffix_length
);
5384 t
->unique
= (c
== 'u' || c
== 'U' || c
== 'j');
5385 temp_filename
= make_temp_file (t
->suffix
);
5386 temp_filename_length
= strlen (temp_filename
);
5387 t
->filename
= temp_filename
;
5388 t
->filename_length
= temp_filename_length
;
5392 free (saved_suffix
);
5394 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
5395 delete_this_arg
= 1;
5403 if (at_file_supplied
)
5405 /* We are going to expand `%i' to `@FILE', where FILE
5406 is a newly-created temporary filename. The filenames
5407 that would usually be expanded in place of %o will be
5408 written to the temporary file. */
5413 for (i
= 0; i
< n_infiles
; i
++)
5414 if (compile_input_file_p (&infiles
[i
]))
5417 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5419 /* Copy the strings over. */
5420 for (i
= 0, j
= 0; i
< n_infiles
; i
++)
5421 if (compile_input_file_p (&infiles
[i
]))
5423 argv
[j
] = CONST_CAST (char *, infiles
[i
].name
);
5424 infiles
[i
].compiled
= true;
5429 create_at_file (argv
);
5432 for (i
= 0; (int) i
< n_infiles
; i
++)
5433 if (compile_input_file_p (&infiles
[i
]))
5435 store_arg (infiles
[i
].name
, 0, 0);
5436 infiles
[i
].compiled
= true;
5441 obstack_grow (&obstack
, input_filename
, input_filename_length
);
5448 struct spec_path_info info
;
5452 do_spec_1 ("-imultilib", 1, NULL
);
5453 /* Make this a separate argument. */
5454 do_spec_1 (" ", 0, NULL
);
5455 do_spec_1 (multilib_dir
, 1, NULL
);
5456 do_spec_1 (" ", 0, NULL
);
5459 if (gcc_exec_prefix
)
5461 do_spec_1 ("-iprefix", 1, NULL
);
5462 /* Make this a separate argument. */
5463 do_spec_1 (" ", 0, NULL
);
5464 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
5465 do_spec_1 (" ", 0, NULL
);
5468 if (target_system_root_changed
||
5469 (target_system_root
&& target_sysroot_hdrs_suffix
))
5471 do_spec_1 ("-isysroot", 1, NULL
);
5472 /* Make this a separate argument. */
5473 do_spec_1 (" ", 0, NULL
);
5474 do_spec_1 (target_system_root
, 1, NULL
);
5475 if (target_sysroot_hdrs_suffix
)
5476 do_spec_1 (target_sysroot_hdrs_suffix
, 1, NULL
);
5477 do_spec_1 (" ", 0, NULL
);
5480 info
.option
= "-isystem";
5481 info
.append
= "include";
5482 info
.append_len
= strlen (info
.append
);
5483 info
.omit_relative
= false;
5484 info
.separate_options
= true;
5486 for_each_path (&include_prefixes
, false, info
.append_len
,
5489 info
.append
= "include-fixed";
5490 if (*sysroot_hdrs_suffix_spec
)
5491 info
.append
= concat (info
.append
, dir_separator_str
,
5492 multilib_dir
, NULL
);
5493 info
.append_len
= strlen (info
.append
);
5494 for_each_path (&include_prefixes
, false, info
.append_len
,
5501 int max
= n_infiles
;
5502 max
+= lang_specific_extra_outfiles
;
5504 if (HAVE_GNU_LD
&& at_file_supplied
)
5506 /* We are going to expand `%o' to `@FILE', where FILE
5507 is a newly-created temporary filename. The filenames
5508 that would usually be expanded in place of %o will be
5509 written to the temporary file. */
5514 /* Convert OUTFILES into a form suitable for writeargv. */
5516 /* Determine how many are non-NULL. */
5517 for (n_files
= 0, i
= 0; i
< max
; i
++)
5518 n_files
+= outfiles
[i
] != NULL
;
5520 argv
= (char **) alloca (sizeof (char *) * (n_files
+ 1));
5522 /* Copy the strings over. */
5523 for (i
= 0, j
= 0; i
< max
; i
++)
5526 argv
[j
] = CONST_CAST (char *, outfiles
[i
]);
5531 create_at_file (argv
);
5534 for (i
= 0; i
< max
; i
++)
5536 store_arg (outfiles
[i
], 0, 0);
5541 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
5546 this_is_library_file
= 1;
5550 outfiles
[input_file_number
] = NULL
;
5554 this_is_output_file
= 1;
5559 int cur_index
= argbuf_index
;
5560 /* Handle the {...} following the %W. */
5562 fatal ("spec '%s' has invalid '%%W%c", spec
, *p
);
5563 p
= handle_braces (p
+ 1);
5567 /* If any args were output, mark the last one for deletion
5569 if (argbuf_index
!= cur_index
)
5570 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
5574 /* %x{OPTION} records OPTION for %X to output. */
5580 /* Skip past the option value and make a copy. */
5582 fatal ("spec '%s' has invalid '%%x%c'", spec
, *p
);
5585 string
= save_string (p1
+ 1, p
- p1
- 2);
5587 /* See if we already recorded this option. */
5588 for (i
= 0; i
< n_linker_options
; i
++)
5589 if (! strcmp (string
, linker_options
[i
]))
5595 /* This option is new; add it. */
5596 add_linker_option (string
, strlen (string
));
5600 /* Dump out the options accumulated previously using %x. */
5602 for (i
= 0; i
< n_linker_options
; i
++)
5604 do_spec_1 (linker_options
[i
], 1, NULL
);
5605 /* Make each accumulated option a separate argument. */
5606 do_spec_1 (" ", 0, NULL
);
5610 /* Dump out the options accumulated previously using -Wa,. */
5612 for (i
= 0; i
< n_assembler_options
; i
++)
5614 do_spec_1 (assembler_options
[i
], 1, NULL
);
5615 /* Make each accumulated option a separate argument. */
5616 do_spec_1 (" ", 0, NULL
);
5620 /* Dump out the options accumulated previously using -Wp,. */
5622 for (i
= 0; i
< n_preprocessor_options
; i
++)
5624 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
5625 /* Make each accumulated option a separate argument. */
5626 do_spec_1 (" ", 0, NULL
);
5630 /* Here are digits and numbers that just process
5631 a certain constant string as a spec. */
5634 value
= do_spec_1 (cc1_spec
, 0, NULL
);
5640 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
5646 value
= do_spec_1 (asm_spec
, 0, NULL
);
5652 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
5659 const char *const spec
5660 = (input_file_compiler
->cpp_spec
5661 ? input_file_compiler
->cpp_spec
5663 value
= do_spec_1 (spec
, 0, NULL
);
5670 value
= do_spec_1 (endfile_spec
, 0, NULL
);
5676 value
= do_spec_1 (link_spec
, 0, NULL
);
5682 value
= do_spec_1 (lib_spec
, 0, NULL
);
5688 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
5694 /* We assume there is a directory
5695 separator at the end of this string. */
5696 if (target_system_root
)
5698 obstack_grow (&obstack
, target_system_root
,
5699 strlen (target_system_root
));
5700 if (target_sysroot_suffix
)
5701 obstack_grow (&obstack
, target_sysroot_suffix
,
5702 strlen (target_sysroot_suffix
));
5707 value
= do_spec_1 (startfile_spec
, 0, NULL
);
5712 /* Here we define characters other than letters and digits. */
5715 p
= handle_braces (p
);
5721 p
= handle_spec_function (p
);
5727 obstack_1grow (&obstack
, '%');
5734 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
5736 suffix_subst
= save_string (p
- 1, len
+ 1);
5741 /* Henceforth ignore the option(s) matching the pattern
5746 int have_wildcard
= 0;
5749 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '\t')
5752 if (p
[len
-1] == '*')
5755 for (i
= 0; i
< n_switches
; i
++)
5756 if (!strncmp (switches
[i
].part1
, p
, len
- have_wildcard
)
5757 && (have_wildcard
|| switches
[i
].part1
[len
] == '\0'))
5759 switches
[i
].live_cond
|= SWITCH_IGNORE
;
5760 switches
[i
].validated
= 1;
5768 if (soft_matched_part
)
5770 do_spec_1 (soft_matched_part
, 1, NULL
);
5771 do_spec_1 (" ", 0, NULL
);
5774 /* Catch the case where a spec string contains something like
5775 '%{foo:%*}'. i.e. there is no * in the pattern on the left
5776 hand side of the :. */
5777 error ("spec failure: '%%*' has not been initialized by pattern match");
5780 /* Process a string found as the value of a spec given by name.
5781 This feature allows individual machine descriptions
5782 to add and use their own specs.
5783 %[...] modifies -D options the way %P does;
5784 %(...) uses the spec unmodified. */
5786 error ("warning: use of obsolete %%[ operator in specs");
5789 const char *name
= p
;
5790 struct spec_list
*sl
;
5793 /* The string after the S/P is the name of a spec that is to be
5795 while (*p
&& *p
!= ')' && *p
!= ']')
5798 /* See if it's in the list. */
5799 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
5800 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
5802 name
= *(sl
->ptr_spec
);
5804 notice ("Processing spec %c%s%c, which is '%s'\n",
5805 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
5814 value
= do_spec_1 (name
, 0, NULL
);
5820 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
5822 const char *y
= name
;
5825 /* Copy all of NAME into BUF, but put __ after
5826 every -D and at the end of each arg. */
5829 if (! strncmp (y
, "-D", 2))
5840 && (*y
== ' ' || *y
== '\t' || *y
== '='
5841 || *y
== '}' || *y
== 0))
5854 value
= do_spec_1 (buf
, 0, NULL
);
5860 /* Discard the closing paren or bracket. */
5867 error ("spec failure: unrecognized spec option '%c'", c
);
5873 /* Backslash: treat next character as ordinary. */
5878 /* Ordinary character: put it into the current argument. */
5879 obstack_1grow (&obstack
, c
);
5883 /* End of string. If we are processing a spec function, we need to
5884 end any pending argument. */
5885 if (processing_spec_function
)
5891 /* Look up a spec function. */
5893 static const struct spec_function
*
5894 lookup_spec_function (const char *name
)
5896 const struct spec_function
*sf
;
5898 for (sf
= static_spec_functions
; sf
->name
!= NULL
; sf
++)
5899 if (strcmp (sf
->name
, name
) == 0)
5905 /* Evaluate a spec function. */
5908 eval_spec_function (const char *func
, const char *args
)
5910 const struct spec_function
*sf
;
5911 const char *funcval
;
5913 /* Saved spec processing context. */
5914 int save_argbuf_index
;
5915 int save_argbuf_length
;
5916 const char **save_argbuf
;
5919 int save_delete_this_arg
;
5920 int save_this_is_output_file
;
5921 int save_this_is_library_file
;
5922 int save_input_from_pipe
;
5923 const char *save_suffix_subst
;
5926 sf
= lookup_spec_function (func
);
5928 fatal ("unknown spec function '%s'", func
);
5930 /* Push the spec processing context. */
5931 save_argbuf_index
= argbuf_index
;
5932 save_argbuf_length
= argbuf_length
;
5933 save_argbuf
= argbuf
;
5935 save_arg_going
= arg_going
;
5936 save_delete_this_arg
= delete_this_arg
;
5937 save_this_is_output_file
= this_is_output_file
;
5938 save_this_is_library_file
= this_is_library_file
;
5939 save_input_from_pipe
= input_from_pipe
;
5940 save_suffix_subst
= suffix_subst
;
5942 /* Create a new spec processing context, and build the function
5946 if (do_spec_2 (args
) < 0)
5947 fatal ("error in args to spec function '%s'", func
);
5949 /* argbuf_index is an index for the next argument to be inserted, and
5950 so contains the count of the args already inserted. */
5952 funcval
= (*sf
->func
) (argbuf_index
, argbuf
);
5954 /* Pop the spec processing context. */
5955 argbuf_index
= save_argbuf_index
;
5956 argbuf_length
= save_argbuf_length
;
5958 argbuf
= save_argbuf
;
5960 arg_going
= save_arg_going
;
5961 delete_this_arg
= save_delete_this_arg
;
5962 this_is_output_file
= save_this_is_output_file
;
5963 this_is_library_file
= save_this_is_library_file
;
5964 input_from_pipe
= save_input_from_pipe
;
5965 suffix_subst
= save_suffix_subst
;
5970 /* Handle a spec function call of the form:
5974 ARGS is processed as a spec in a separate context and split into an
5975 argument vector in the normal fashion. The function returns a string
5976 containing a spec which we then process in the caller's context, or
5977 NULL if no processing is required. */
5980 handle_spec_function (const char *p
)
5983 const char *endp
, *funcval
;
5986 processing_spec_function
++;
5988 /* Get the function name. */
5989 for (endp
= p
; *endp
!= '\0'; endp
++)
5991 if (*endp
== '(') /* ) */
5993 /* Only allow [A-Za-z0-9], -, and _ in function names. */
5994 if (!ISALNUM (*endp
) && !(*endp
== '-' || *endp
== '_'))
5995 fatal ("malformed spec function name");
5997 if (*endp
!= '(') /* ) */
5998 fatal ("no arguments for spec function");
5999 func
= save_string (p
, endp
- p
);
6002 /* Get the arguments. */
6003 for (count
= 0; *endp
!= '\0'; endp
++)
6012 else if (*endp
== '(') /* ) */
6017 fatal ("malformed spec function arguments");
6018 args
= save_string (p
, endp
- p
);
6021 /* p now points to just past the end of the spec function expression. */
6023 funcval
= eval_spec_function (func
, args
);
6024 if (funcval
!= NULL
&& do_spec_1 (funcval
, 0, NULL
) < 0)
6030 processing_spec_function
--;
6035 /* Inline subroutine of handle_braces. Returns true if the current
6036 input suffix matches the atom bracketed by ATOM and END_ATOM. */
6038 input_suffix_matches (const char *atom
, const char *end_atom
)
6040 return (input_suffix
6041 && !strncmp (input_suffix
, atom
, end_atom
- atom
)
6042 && input_suffix
[end_atom
- atom
] == '\0');
6045 /* Subroutine of handle_braces. Returns true if the current
6046 input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
6048 input_spec_matches (const char *atom
, const char *end_atom
)
6050 return (input_file_compiler
6051 && input_file_compiler
->suffix
6052 && input_file_compiler
->suffix
[0] != '\0'
6053 && !strncmp (input_file_compiler
->suffix
+ 1, atom
,
6055 && input_file_compiler
->suffix
[end_atom
- atom
+ 1] == '\0');
6058 /* Subroutine of handle_braces. Returns true if a switch
6059 matching the atom bracketed by ATOM and END_ATOM appeared on the
6062 switch_matches (const char *atom
, const char *end_atom
, int starred
)
6065 int len
= end_atom
- atom
;
6066 int plen
= starred
? len
: -1;
6068 for (i
= 0; i
< n_switches
; i
++)
6069 if (!strncmp (switches
[i
].part1
, atom
, len
)
6070 && (starred
|| switches
[i
].part1
[len
] == '\0')
6071 && check_live_switch (i
, plen
))
6077 /* Inline subroutine of handle_braces. Mark all of the switches which
6078 match ATOM (extends to END_ATOM; STARRED indicates whether there
6079 was a star after the atom) for later processing. */
6081 mark_matching_switches (const char *atom
, const char *end_atom
, int starred
)
6084 int len
= end_atom
- atom
;
6085 int plen
= starred
? len
: -1;
6087 for (i
= 0; i
< n_switches
; i
++)
6088 if (!strncmp (switches
[i
].part1
, atom
, len
)
6089 && (starred
|| switches
[i
].part1
[len
] == '\0')
6090 && check_live_switch (i
, plen
))
6091 switches
[i
].ordering
= 1;
6094 /* Inline subroutine of handle_braces. Process all the currently
6095 marked switches through give_switch, and clear the marks. */
6097 process_marked_switches (void)
6101 for (i
= 0; i
< n_switches
; i
++)
6102 if (switches
[i
].ordering
== 1)
6104 switches
[i
].ordering
= 0;
6109 /* Handle a %{ ... } construct. P points just inside the leading {.
6110 Returns a pointer one past the end of the brace block, or 0
6111 if we call do_spec_1 and that returns -1. */
6114 handle_braces (const char *p
)
6116 const char *atom
, *end_atom
;
6117 const char *d_atom
= NULL
, *d_end_atom
= NULL
;
6118 const char *orig
= p
;
6126 bool a_must_be_last
= false;
6127 bool ordered_set
= false;
6128 bool disjunct_set
= false;
6129 bool disj_matched
= false;
6130 bool disj_starred
= true;
6131 bool n_way_choice
= false;
6132 bool n_way_matched
= false;
6134 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
6141 /* Scan one "atom" (S in the description above of %{}, possibly
6142 with '!', '.', '@', ',', or '*' modifiers). */
6144 a_is_suffix
= false;
6145 a_is_starred
= false;
6146 a_is_negated
= false;
6147 a_is_spectype
= false;
6151 p
++, a_is_negated
= true;
6155 p
++, a_is_suffix
= true;
6157 p
++, a_is_spectype
= true;
6160 while (ISIDNUM(*p
) || *p
== '-' || *p
== '+' || *p
== '='
6161 || *p
== ',' || *p
== '.' || *p
== '@')
6166 p
++, a_is_starred
= 1;
6172 /* Substitute the switch(es) indicated by the current atom. */
6174 if (disjunct_set
|| n_way_choice
|| a_is_negated
|| a_is_suffix
6175 || a_is_spectype
|| atom
== end_atom
)
6178 mark_matching_switches (atom
, end_atom
, a_is_starred
);
6181 process_marked_switches ();
6185 /* Substitute some text if the current atom appears as a switch
6187 disjunct_set
= true;
6191 if (atom
== end_atom
)
6193 if (!n_way_choice
|| disj_matched
|| *p
== '|'
6194 || a_is_negated
|| a_is_suffix
|| a_is_spectype
6198 /* An empty term may appear as the last choice of an
6199 N-way choice set; it means "otherwise". */
6200 a_must_be_last
= true;
6201 disj_matched
= !n_way_matched
;
6202 disj_starred
= false;
6206 if ((a_is_suffix
|| a_is_spectype
) && a_is_starred
)
6210 disj_starred
= false;
6212 /* Don't bother testing this atom if we already have a
6214 if (!disj_matched
&& !n_way_matched
)
6217 a_matched
= input_suffix_matches (atom
, end_atom
);
6218 else if (a_is_spectype
)
6219 a_matched
= input_spec_matches (atom
, end_atom
);
6221 a_matched
= switch_matches (atom
, end_atom
, a_is_starred
);
6223 if (a_matched
!= a_is_negated
)
6225 disj_matched
= true;
6227 d_end_atom
= end_atom
;
6234 /* Found the body, that is, the text to substitute if the
6235 current disjunction matches. */
6236 p
= process_brace_body (p
+ 1, d_atom
, d_end_atom
, disj_starred
,
6237 disj_matched
&& !n_way_matched
);
6241 /* If we have an N-way choice, reset state for the next
6245 n_way_choice
= true;
6246 n_way_matched
|= disj_matched
;
6247 disj_matched
= false;
6248 disj_starred
= true;
6249 d_atom
= d_end_atom
= NULL
;
6258 while (*p
++ != '}');
6263 fatal ("braced spec '%s' is invalid at '%c'", orig
, *p
);
6268 /* Subroutine of handle_braces. Scan and process a brace substitution body
6269 (X in the description of %{} syntax). P points one past the colon;
6270 ATOM and END_ATOM bracket the first atom which was found to be true
6271 (present) in the current disjunction; STARRED indicates whether all
6272 the atoms in the current disjunction were starred (for syntax validation);
6273 MATCHED indicates whether the disjunction matched or not, and therefore
6274 whether or not the body is to be processed through do_spec_1 or just
6275 skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
6279 process_brace_body (const char *p
, const char *atom
, const char *end_atom
,
6280 int starred
, int matched
)
6282 const char *body
, *end_body
;
6283 unsigned int nesting_level
;
6284 bool have_subst
= false;
6286 /* Locate the closing } or ;, honoring nested braces.
6287 Trim trailing whitespace. */
6296 if (!--nesting_level
)
6299 else if (*p
== ';' && nesting_level
== 1)
6301 else if (*p
== '%' && p
[1] == '*' && nesting_level
== 1)
6303 else if (*p
== '\0')
6309 while (end_body
[-1] == ' ' || end_body
[-1] == '\t')
6312 if (have_subst
&& !starred
)
6317 /* Copy the substitution body to permanent storage and execute it.
6318 If have_subst is false, this is a simple matter of running the
6319 body through do_spec_1... */
6320 char *string
= save_string (body
, end_body
- body
);
6323 if (do_spec_1 (string
, 0, NULL
) < 0)
6328 /* ... but if have_subst is true, we have to process the
6329 body once for each matching switch, with %* set to the
6330 variant part of the switch. */
6331 unsigned int hard_match_len
= end_atom
- atom
;
6334 for (i
= 0; i
< n_switches
; i
++)
6335 if (!strncmp (switches
[i
].part1
, atom
, hard_match_len
)
6336 && check_live_switch (i
, hard_match_len
))
6338 if (do_spec_1 (string
, 0,
6339 &switches
[i
].part1
[hard_match_len
]) < 0)
6341 /* Pass any arguments this switch has. */
6343 suffix_subst
= NULL
;
6351 fatal ("braced spec body '%s' is invalid", body
);
6354 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
6355 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
6356 spec, or -1 if either exact match or %* is used.
6358 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
6359 whose value does not begin with "no-" is obsoleted by the same value
6360 with the "no-", similarly for a switch with the "no-" prefix. */
6363 check_live_switch (int switchnum
, int prefix_length
)
6365 const char *name
= switches
[switchnum
].part1
;
6368 /* If we already processed this switch and determined if it was
6369 live or not, return our past determination. */
6370 if (switches
[switchnum
].live_cond
!= 0)
6371 return ((switches
[switchnum
].live_cond
& SWITCH_LIVE
) != 0
6372 && (switches
[switchnum
].live_cond
& SWITCH_FALSE
) == 0
6373 && (switches
[switchnum
].live_cond
& SWITCH_IGNORE
) == 0);
6375 /* In the common case of {<at-most-one-letter>*}, a negating
6376 switch would always match, so ignore that case. We will just
6377 send the conflicting switches to the compiler phase. */
6378 if (prefix_length
>= 0 && prefix_length
<= 1)
6381 /* Now search for duplicate in a manner that depends on the name. */
6385 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6386 if (switches
[i
].part1
[0] == 'O')
6388 switches
[switchnum
].validated
= 1;
6389 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6394 case 'W': case 'f': case 'm':
6395 if (! strncmp (name
+ 1, "no-", 3))
6397 /* We have Xno-YYY, search for XYYY. */
6398 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6399 if (switches
[i
].part1
[0] == name
[0]
6400 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
6402 switches
[switchnum
].validated
= 1;
6403 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6409 /* We have XYYY, search for Xno-YYY. */
6410 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
6411 if (switches
[i
].part1
[0] == name
[0]
6412 && switches
[i
].part1
[1] == 'n'
6413 && switches
[i
].part1
[2] == 'o'
6414 && switches
[i
].part1
[3] == '-'
6415 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
6417 switches
[switchnum
].validated
= 1;
6418 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
6425 /* Otherwise the switch is live. */
6426 switches
[switchnum
].live_cond
|= SWITCH_LIVE
;
6430 /* Pass a switch to the current accumulating command
6431 in the same form that we received it.
6432 SWITCHNUM identifies the switch; it is an index into
6433 the vector of switches gcc received, which is `switches'.
6434 This cannot fail since it never finishes a command line.
6436 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
6439 give_switch (int switchnum
, int omit_first_word
)
6441 if ((switches
[switchnum
].live_cond
& SWITCH_IGNORE
) != 0)
6444 if (!omit_first_word
)
6446 do_spec_1 ("-", 0, NULL
);
6447 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
6450 if (switches
[switchnum
].args
!= 0)
6453 for (p
= switches
[switchnum
].args
; *p
; p
++)
6455 const char *arg
= *p
;
6457 do_spec_1 (" ", 0, NULL
);
6460 unsigned length
= strlen (arg
);
6463 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
6464 if (arg
[length
] == '.')
6466 (CONST_CAST(char *, arg
))[length
] = 0;
6470 do_spec_1 (arg
, 1, NULL
);
6472 (CONST_CAST(char *, arg
))[length
] = '.';
6473 do_spec_1 (suffix_subst
, 1, NULL
);
6476 do_spec_1 (arg
, 1, NULL
);
6480 do_spec_1 (" ", 0, NULL
);
6481 switches
[switchnum
].validated
= 1;
6484 /* Search for a file named NAME trying various prefixes including the
6485 user's -B prefix and some standard ones.
6486 Return the absolute file name found. If nothing is found, return NAME. */
6489 find_file (const char *name
)
6491 char *newname
= find_a_file (&startfile_prefixes
, name
, R_OK
, true);
6492 return newname
? newname
: name
;
6495 /* Determine whether a directory exists. If LINKER, return 0 for
6496 certain fixed names not needed by the linker. */
6499 is_directory (const char *path1
, bool linker
)
6506 /* Ensure the string ends with "/.". The resulting path will be a
6507 directory even if the given path is a symbolic link. */
6508 len1
= strlen (path1
);
6509 path
= (char *) alloca (3 + len1
);
6510 memcpy (path
, path1
, len1
);
6512 if (!IS_DIR_SEPARATOR (cp
[-1]))
6513 *cp
++ = DIR_SEPARATOR
;
6517 /* Exclude directories that the linker is known to search. */
6519 && IS_DIR_SEPARATOR (path
[0])
6521 && strncmp (path
+ 1, "lib", 3) == 0)
6523 && strncmp (path
+ 1, "usr", 3) == 0
6524 && IS_DIR_SEPARATOR (path
[4])
6525 && strncmp (path
+ 5, "lib", 3) == 0)))
6528 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
6531 /* Set up the various global variables to indicate that we're processing
6532 the input file named FILENAME. */
6535 set_input (const char *filename
)
6539 input_filename
= filename
;
6540 input_filename_length
= strlen (input_filename
);
6541 input_basename
= lbasename (input_filename
);
6543 /* Find a suffix starting with the last period,
6544 and set basename_length to exclude that suffix. */
6545 basename_length
= strlen (input_basename
);
6546 suffixed_basename_length
= basename_length
;
6547 p
= input_basename
+ basename_length
;
6548 while (p
!= input_basename
&& *p
!= '.')
6550 if (*p
== '.' && p
!= input_basename
)
6552 basename_length
= p
- input_basename
;
6553 input_suffix
= p
+ 1;
6558 /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
6559 we will need to do a stat on the input_filename. The
6560 INPUT_STAT_SET signals that the stat is needed. */
6564 /* On fatal signals, delete all the temporary files. */
6567 fatal_error (int signum
)
6569 signal (signum
, SIG_DFL
);
6570 delete_failure_queue ();
6571 delete_temp_files ();
6572 /* Get the same signal again, this time not handled,
6573 so its normal effect occurs. */
6574 kill (getpid (), signum
);
6577 /* Compare the contents of the two files named CMPFILE[0] and
6578 CMPFILE[1]. Return zero if they're identical, nonzero
6582 compare_files (char *cmpfile
[])
6585 FILE *temp
[2] = { NULL
, NULL
};
6591 void *map
[2] = { NULL
, NULL
};
6593 for (i
= 0; i
< 2; i
++)
6597 if (stat (cmpfile
[i
], &st
) < 0 || !S_ISREG (st
.st_mode
))
6599 error ("%s: could not determine length of compare-debug file %s",
6600 input_filename
, cmpfile
[i
]);
6605 length
[i
] = st
.st_size
;
6608 if (!ret
&& length
[0] != length
[1])
6610 error ("%s: -fcompare-debug failure (length)", input_filename
);
6615 for (i
= 0; i
< 2; i
++)
6617 int fd
= open (cmpfile
[i
], O_RDONLY
);
6620 error ("%s: could not open compare-debug file %s",
6621 input_filename
, cmpfile
[i
]);
6626 map
[i
] = mmap (NULL
, length
[i
], PROT_READ
, MAP_PRIVATE
, fd
, 0);
6629 if (map
[i
] == (void *) MAP_FAILED
)
6638 if (memcmp (map
[0], map
[1], length
[0]) != 0)
6640 error ("%s: -fcompare-debug failure", input_filename
);
6645 for (i
= 0; i
< 2; i
++)
6647 munmap ((caddr_t
) map
[i
], length
[i
]);
6656 for (i
= 0; i
< 2; i
++)
6658 temp
[i
] = fopen (cmpfile
[i
], "r");
6661 error ("%s: could not open compare-debug file %s",
6662 input_filename
, cmpfile
[i
]);
6668 if (!ret
&& temp
[0] && temp
[1])
6672 c0
= fgetc (temp
[0]);
6673 c1
= fgetc (temp
[1]);
6677 error ("%s: -fcompare-debug failure",
6687 for (i
= 1; i
>= 0; i
--)
6696 extern int main (int, char **);
6699 main (int argc
, char **argv
)
6703 int linker_was_run
= 0;
6704 int lang_n_infiles
= 0;
6705 int num_linker_inputs
= 0;
6706 char *explicit_link_files
;
6709 struct user_specs
*uptr
;
6710 char **old_argv
= argv
;
6712 /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes
6713 on ?: in file-scope variable initializations. */
6714 asm_debug
= ASM_DEBUG_SPEC
;
6716 p
= argv
[0] + strlen (argv
[0]);
6717 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
6721 xmalloc_set_program_name (programname
);
6723 expandargv (&argc
, &argv
);
6725 /* Determine if any expansions were made. */
6726 if (argv
!= old_argv
)
6727 at_file_supplied
= true;
6729 prune_options (&argc
, &argv
);
6731 #ifdef GCC_DRIVER_HOST_INITIALIZATION
6732 /* Perform host dependent initialization when needed. */
6733 GCC_DRIVER_HOST_INITIALIZATION
;
6736 /* Unlock the stdio streams. */
6737 unlock_std_streams ();
6739 gcc_init_libintl ();
6741 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
6742 signal (SIGINT
, fatal_error
);
6744 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
6745 signal (SIGHUP
, fatal_error
);
6747 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
6748 signal (SIGTERM
, fatal_error
);
6750 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
6751 signal (SIGPIPE
, fatal_error
);
6754 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
6755 receive the signal. A different setting is inheritable */
6756 signal (SIGCHLD
, SIG_DFL
);
6759 /* Allocate the argument vector. */
6762 obstack_init (&obstack
);
6764 /* Build multilib_select, et. al from the separate lines that make up each
6765 multilib selection. */
6767 const char *const *q
= multilib_raw
;
6770 obstack_init (&multilib_obstack
);
6771 while ((p
= *q
++) != (char *) 0)
6772 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6774 obstack_1grow (&multilib_obstack
, 0);
6775 multilib_select
= XOBFINISH (&multilib_obstack
, const char *);
6777 q
= multilib_matches_raw
;
6778 while ((p
= *q
++) != (char *) 0)
6779 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6781 obstack_1grow (&multilib_obstack
, 0);
6782 multilib_matches
= XOBFINISH (&multilib_obstack
, const char *);
6784 q
= multilib_exclusions_raw
;
6785 while ((p
= *q
++) != (char *) 0)
6786 obstack_grow (&multilib_obstack
, p
, strlen (p
));
6788 obstack_1grow (&multilib_obstack
, 0);
6789 multilib_exclusions
= XOBFINISH (&multilib_obstack
, const char *);
6792 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
6795 obstack_1grow (&multilib_obstack
, ' ');
6796 obstack_grow (&multilib_obstack
,
6797 multilib_defaults_raw
[i
],
6798 strlen (multilib_defaults_raw
[i
]));
6802 obstack_1grow (&multilib_obstack
, 0);
6803 multilib_defaults
= XOBFINISH (&multilib_obstack
, const char *);
6806 /* Set up to remember the pathname of gcc and any options
6807 needed for collect. We use argv[0] instead of programname because
6808 we need the complete pathname. */
6809 obstack_init (&collect_obstack
);
6810 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
6811 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
6812 xputenv (XOBFINISH (&collect_obstack
, char *));
6814 #ifdef INIT_ENVIRONMENT
6815 /* Set up any other necessary machine specific environment variables. */
6816 xputenv (INIT_ENVIRONMENT
);
6819 /* Make a table of what switches there are (switches, n_switches).
6820 Make a table of specified input files (infiles, n_infiles).
6821 Decode switches that are handled locally. */
6823 process_command (argc
, CONST_CAST2 (const char **, char **, argv
));
6825 /* Initialize the vector of specs to just the default.
6826 This means one element containing 0s, as a terminator. */
6828 compilers
= XNEWVAR (struct compiler
, sizeof default_compilers
);
6829 memcpy (compilers
, default_compilers
, sizeof default_compilers
);
6830 n_compilers
= n_default_compilers
;
6832 /* Read specs from a file if there is one. */
6834 machine_suffix
= concat (spec_machine
, dir_separator_str
,
6835 spec_version
, dir_separator_str
, NULL
);
6836 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
6838 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
, true);
6839 /* Read the specs file unless it is a default one. */
6840 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
6841 read_specs (specs_file
, TRUE
);
6845 /* We need to check standard_exec_prefix/just_machine_suffix/specs
6846 for any override of as, ld and libraries. */
6847 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
6848 + strlen (just_machine_suffix
) + sizeof ("specs"));
6850 strcpy (specs_file
, standard_exec_prefix
);
6851 strcat (specs_file
, just_machine_suffix
);
6852 strcat (specs_file
, "specs");
6853 if (access (specs_file
, R_OK
) == 0)
6854 read_specs (specs_file
, TRUE
);
6856 /* Process any configure-time defaults specified for the command line
6857 options, via OPTION_DEFAULT_SPECS. */
6858 for (i
= 0; i
< ARRAY_SIZE (option_default_specs
); i
++)
6859 do_option_spec (option_default_specs
[i
].name
,
6860 option_default_specs
[i
].spec
);
6862 /* Process DRIVER_SELF_SPECS, adding any new options to the end
6863 of the command line. */
6865 for (i
= 0; i
< ARRAY_SIZE (driver_self_specs
); i
++)
6866 do_self_spec (driver_self_specs
[i
]);
6870 enum save_temps save
;
6872 if (!compare_debug_second
)
6874 n_switches_debug_check
[1] = n_switches
;
6875 switches_debug_check
[1] = XDUPVEC (struct switchstr
, switches
,
6878 do_self_spec ("%:compare-debug-self-opt()");
6879 n_switches_debug_check
[0] = n_switches
;
6880 switches_debug_check
[0] = switches
;
6882 n_switches
= n_switches_debug_check
[1];
6883 switches
= switches_debug_check
[1];
6886 /* Avoid crash when computing %j in this early. */
6887 save
= save_temps_flag
;
6888 save_temps_flag
= SAVE_TEMPS_NONE
;
6890 compare_debug
= -compare_debug
;
6891 do_self_spec ("%:compare-debug-self-opt()");
6893 save_temps_flag
= save
;
6895 if (!compare_debug_second
)
6897 n_switches_debug_check
[1] = n_switches
;
6898 switches_debug_check
[1] = switches
;
6899 compare_debug
= -compare_debug
;
6900 n_switches
= n_switches_debug_check
[0];
6901 switches
= switches_debug_check
[0];
6905 /* If not cross-compiling, look for executables in the standard
6907 if (*cross_compile
== '0')
6909 if (*md_exec_prefix
)
6911 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
6912 PREFIX_PRIORITY_LAST
, 0, 0);
6916 /* Process sysroot_suffix_spec. */
6917 if (*sysroot_suffix_spec
!= 0
6918 && do_spec_2 (sysroot_suffix_spec
) == 0)
6920 if (argbuf_index
> 1)
6921 error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC");
6922 else if (argbuf_index
== 1)
6923 target_sysroot_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6926 #ifdef HAVE_LD_SYSROOT
6927 /* Pass the --sysroot option to the linker, if it supports that. If
6928 there is a sysroot_suffix_spec, it has already been processed by
6929 this point, so target_system_root really is the system root we
6931 if (target_system_root
)
6933 obstack_grow (&obstack
, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
6934 obstack_grow0 (&obstack
, link_spec
, strlen (link_spec
));
6935 set_spec ("link", XOBFINISH (&obstack
, const char *));
6939 /* Process sysroot_hdrs_suffix_spec. */
6940 if (*sysroot_hdrs_suffix_spec
!= 0
6941 && do_spec_2 (sysroot_hdrs_suffix_spec
) == 0)
6943 if (argbuf_index
> 1)
6944 error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC");
6945 else if (argbuf_index
== 1)
6946 target_sysroot_hdrs_suffix
= xstrdup (argbuf
[argbuf_index
-1]);
6949 /* Look for startfiles in the standard places. */
6950 if (*startfile_prefix_spec
!= 0
6951 && do_spec_2 (startfile_prefix_spec
) == 0
6952 && do_spec_1 (" ", 0, NULL
) == 0)
6955 for (ndx
= 0; ndx
< argbuf_index
; ndx
++)
6956 add_sysrooted_prefix (&startfile_prefixes
, argbuf
[ndx
], "BINUTILS",
6957 PREFIX_PRIORITY_LAST
, 0, 1);
6959 /* We should eventually get rid of all these and stick to
6960 startfile_prefix_spec exclusively. */
6961 else if (*cross_compile
== '0' || target_system_root
)
6963 if (*md_startfile_prefix
)
6964 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix
,
6965 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6967 if (*md_startfile_prefix_1
)
6968 add_sysrooted_prefix (&startfile_prefixes
, md_startfile_prefix_1
,
6969 "GCC", PREFIX_PRIORITY_LAST
, 0, 1);
6971 /* If standard_startfile_prefix is relative, base it on
6972 standard_exec_prefix. This lets us move the installed tree
6973 as a unit. If GCC_EXEC_PREFIX is defined, base
6974 standard_startfile_prefix on that as well.
6976 If the prefix is relative, only search it for native compilers;
6977 otherwise we will search a directory containing host libraries. */
6978 if (IS_ABSOLUTE_PATH (standard_startfile_prefix
))
6979 add_sysrooted_prefix (&startfile_prefixes
,
6980 standard_startfile_prefix
, "BINUTILS",
6981 PREFIX_PRIORITY_LAST
, 0, 1);
6982 else if (*cross_compile
== '0')
6984 add_prefix (&startfile_prefixes
,
6985 concat (gcc_exec_prefix
6986 ? gcc_exec_prefix
: standard_exec_prefix
,
6988 standard_startfile_prefix
, NULL
),
6989 NULL
, PREFIX_PRIORITY_LAST
, 0, 1);
6992 /* Sysrooted prefixes are relocated because target_system_root is
6993 also relocated by gcc_exec_prefix. */
6994 if (*standard_startfile_prefix_1
)
6995 add_sysrooted_prefix (&startfile_prefixes
,
6996 standard_startfile_prefix_1
, "BINUTILS",
6997 PREFIX_PRIORITY_LAST
, 0, 1);
6998 if (*standard_startfile_prefix_2
)
6999 add_sysrooted_prefix (&startfile_prefixes
,
7000 standard_startfile_prefix_2
, "BINUTILS",
7001 PREFIX_PRIORITY_LAST
, 0, 1);
7004 /* Process any user specified specs in the order given on the command
7006 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
7008 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
,
7010 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
7013 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
7014 if (gcc_exec_prefix
)
7015 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
7016 spec_version
, dir_separator_str
, NULL
);
7018 /* Now we have the specs.
7019 Set the `valid' bits for switches that match anything in any spec. */
7021 validate_all_switches ();
7023 /* Now that we have the switches and the specs, set
7024 the subdirectory based on the options. */
7025 set_multilib_dir ();
7027 /* Warn about any switches that no pass was interested in. */
7029 for (i
= 0; (int) i
< n_switches
; i
++)
7030 if (! switches
[i
].validated
)
7031 error ("unrecognized option '-%s'", switches
[i
].part1
);
7033 /* Obey some of the options. */
7035 if (print_search_dirs
)
7037 printf (_("install: %s%s\n"),
7038 gcc_exec_prefix
? gcc_exec_prefix
: standard_exec_prefix
,
7039 gcc_exec_prefix
? "" : machine_suffix
);
7040 printf (_("programs: %s\n"),
7041 build_search_list (&exec_prefixes
, "", false, false));
7042 printf (_("libraries: %s\n"),
7043 build_search_list (&startfile_prefixes
, "", false, true));
7047 if (print_file_name
)
7049 printf ("%s\n", find_file (print_file_name
));
7053 if (print_prog_name
)
7055 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
, 0);
7056 printf ("%s\n", (newname
? newname
: print_prog_name
));
7060 if (print_multi_lib
)
7062 print_multilib_info ();
7066 if (print_multi_directory
)
7068 if (multilib_dir
== NULL
)
7071 printf ("%s\n", multilib_dir
);
7077 if (target_system_root
)
7079 if (target_sysroot_suffix
)
7080 printf ("%s%s\n", target_system_root
, target_sysroot_suffix
);
7082 printf ("%s\n", target_system_root
);
7087 if (print_multi_os_directory
)
7089 if (multilib_os_dir
== NULL
)
7092 printf ("%s\n", multilib_os_dir
);
7096 if (print_sysroot_headers_suffix
)
7098 if (*sysroot_hdrs_suffix_spec
)
7100 printf("%s\n", (target_sysroot_hdrs_suffix
7101 ? target_sysroot_hdrs_suffix
7106 /* The error status indicates that only one set of fixed
7107 headers should be built. */
7108 fatal ("not configured with sysroot headers suffix");
7111 if (print_help_list
)
7117 printf (_("\nFor bug reporting instructions, please see:\n"));
7118 printf ("%s.\n", bug_report_url
);
7123 /* We do not exit here. Instead we have created a fake input file
7124 called 'help-dummy' which needs to be compiled, and we pass this
7125 on the various sub-processes, along with the --help switch.
7126 Ensure their output appears after ours. */
7127 fputc ('\n', stdout
);
7133 printf (_("%s %s%s\n"), programname
, pkgversion_string
,
7135 printf ("Copyright %s 2009 Free Software Foundation, Inc.\n",
7137 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
7138 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
7143 /* We do not exit here. We use the same mechanism of --help to print
7144 the version of the sub-processes. */
7145 fputc ('\n', stdout
);
7154 notice ("Target: %s\n", spec_machine
);
7155 notice ("Configured with: %s\n", configuration_arguments
);
7157 #ifdef THREAD_MODEL_SPEC
7158 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7159 but there's no point in doing all this processing just to get
7160 thread_model back. */
7161 obstack_init (&obstack
);
7162 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
7163 obstack_1grow (&obstack
, '\0');
7164 thrmod
= XOBFINISH (&obstack
, const char *);
7166 thrmod
= thread_model
;
7169 notice ("Thread model: %s\n", thrmod
);
7171 /* compiler_version is truncated at the first space when initialized
7172 from version string, so truncate version_string at the first space
7173 before comparing. */
7174 for (n
= 0; version_string
[n
]; n
++)
7175 if (version_string
[n
] == ' ')
7178 if (! strncmp (version_string
, compiler_version
, n
)
7179 && compiler_version
[n
] == 0)
7180 notice ("gcc version %s %s\n", version_string
, pkgversion_string
);
7182 notice ("gcc driver version %s %sexecuting gcc version %s\n",
7183 version_string
, pkgversion_string
, compiler_version
);
7189 if (n_infiles
== added_libraries
)
7190 fatal ("no input files");
7192 /* Make a place to record the compiler output file names
7193 that correspond to the input files. */
7196 i
+= lang_specific_extra_outfiles
;
7197 outfiles
= XCNEWVEC (const char *, i
);
7199 /* Record which files were specified explicitly as link input. */
7201 explicit_link_files
= XCNEWVEC (char, n_infiles
);
7204 combine_inputs
= true;
7206 combine_inputs
= false;
7208 for (i
= 0; (int) i
< n_infiles
; i
++)
7210 const char *name
= infiles
[i
].name
;
7211 struct compiler
*compiler
= lookup_compiler (name
,
7213 infiles
[i
].language
);
7215 if (compiler
&& !(compiler
->combinable
))
7216 combine_inputs
= false;
7218 if (lang_n_infiles
> 0 && compiler
!= input_file_compiler
7219 && infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7220 infiles
[i
].incompiler
= compiler
;
7224 input_file_compiler
= compiler
;
7225 infiles
[i
].incompiler
= compiler
;
7229 /* Since there is no compiler for this input file, assume it is a
7231 explicit_link_files
[i
] = 1;
7232 infiles
[i
].incompiler
= NULL
;
7234 infiles
[i
].compiled
= false;
7235 infiles
[i
].preprocessed
= false;
7238 if (!combine_inputs
&& have_c
&& have_o
&& lang_n_infiles
> 1)
7239 fatal ("cannot specify -o with -c or -S with multiple files");
7241 if (combine_flag
&& save_temps_flag
)
7243 bool save_combine_inputs
= combine_inputs
;
7244 /* Must do a separate pre-processing pass for C & Objective-C files, to
7245 obtain individual .i files. */
7247 combine_inputs
= false;
7248 for (i
= 0; (int) i
< n_infiles
; i
++)
7250 int this_file_error
= 0;
7252 input_file_number
= i
;
7253 set_input (infiles
[i
].name
);
7254 if (infiles
[i
].incompiler
7255 && (infiles
[i
].incompiler
)->needs_preprocessing
)
7256 input_file_compiler
= infiles
[i
].incompiler
;
7260 if (input_file_compiler
)
7262 if (input_file_compiler
->spec
[0] == '#')
7264 error ("%s: %s compiler not installed on this system",
7265 input_filename
, &input_file_compiler
->spec
[1]);
7266 this_file_error
= 1;
7270 value
= do_spec (input_file_compiler
->spec
);
7271 infiles
[i
].preprocessed
= true;
7272 if (!have_o_argbuf_index
)
7273 fatal ("spec '%s' is invalid", input_file_compiler
->spec
);
7274 infiles
[i
].name
= argbuf
[have_o_argbuf_index
];
7275 infiles
[i
].incompiler
7276 = lookup_compiler (infiles
[i
].name
,
7277 strlen (infiles
[i
].name
),
7278 infiles
[i
].language
);
7281 this_file_error
= 1;
7285 if (this_file_error
)
7287 delete_failure_queue ();
7291 clear_failure_queue ();
7293 combine_inputs
= save_combine_inputs
;
7296 for (i
= 0; (int) i
< n_infiles
; i
++)
7298 int this_file_error
= 0;
7300 /* Tell do_spec what to substitute for %i. */
7302 input_file_number
= i
;
7303 set_input (infiles
[i
].name
);
7305 if (infiles
[i
].compiled
)
7308 /* Use the same thing in %o, unless cp->spec says otherwise. */
7310 outfiles
[i
] = input_filename
;
7312 /* Figure out which compiler from the file's suffix. */
7314 if (! combine_inputs
)
7316 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
7317 infiles
[i
].language
);
7319 input_file_compiler
= infiles
[i
].incompiler
;
7321 if (input_file_compiler
)
7323 /* Ok, we found an applicable compiler. Run its spec. */
7325 if (input_file_compiler
->spec
[0] == '#')
7327 error ("%s: %s compiler not installed on this system",
7328 input_filename
, &input_file_compiler
->spec
[1]);
7329 this_file_error
= 1;
7335 if (debug_check_temp_file
[0])
7336 free (debug_check_temp_file
[0]);
7337 debug_check_temp_file
[0] = NULL
;
7339 if (debug_check_temp_file
[1])
7340 free (debug_check_temp_file
[1]);
7341 debug_check_temp_file
[1] = NULL
;
7344 value
= do_spec (input_file_compiler
->spec
);
7345 infiles
[i
].compiled
= true;
7347 this_file_error
= 1;
7348 else if (compare_debug
&& debug_check_temp_file
[0])
7351 error ("Recompiling with -fcompare-debug");
7353 compare_debug
= -compare_debug
;
7354 n_switches
= n_switches_debug_check
[1];
7355 switches
= switches_debug_check
[1];
7357 value
= do_spec (input_file_compiler
->spec
);
7359 compare_debug
= -compare_debug
;
7360 n_switches
= n_switches_debug_check
[0];
7361 switches
= switches_debug_check
[0];
7365 error ("during -fcompare-debug recompilation");
7366 this_file_error
= 1;
7369 gcc_assert (debug_check_temp_file
[1]
7370 && strcmp (debug_check_temp_file
[0],
7371 debug_check_temp_file
[1]));
7374 error ("Comparing final insns dumps");
7376 if (compare_files (debug_check_temp_file
))
7377 this_file_error
= 1;
7382 if (debug_check_temp_file
[0])
7383 free (debug_check_temp_file
[0]);
7384 debug_check_temp_file
[0] = NULL
;
7386 if (debug_check_temp_file
[1])
7387 free (debug_check_temp_file
[1]);
7388 debug_check_temp_file
[1] = NULL
;
7393 /* If this file's name does not contain a recognized suffix,
7394 record it as explicit linker input. */
7397 explicit_link_files
[i
] = 1;
7399 /* Clear the delete-on-failure queue, deleting the files in it
7400 if this compilation failed. */
7402 if (this_file_error
)
7404 delete_failure_queue ();
7407 /* If this compilation succeeded, don't delete those files later. */
7408 clear_failure_queue ();
7411 /* Reset the input file name to the first compile/object file name, for use
7412 with %b in LINK_SPEC. We use the first input file that we can find
7413 a compiler to compile it instead of using infiles.language since for
7414 languages other than C we use aliases that we then lookup later. */
7419 for (i
= 0; i
< n_infiles
; i
++)
7420 if (infiles
[i
].language
&& infiles
[i
].language
[0] != '*')
7422 set_input (infiles
[i
].name
);
7427 if (error_count
== 0)
7429 /* Make sure INPUT_FILE_NUMBER points to first available open
7431 input_file_number
= n_infiles
;
7432 if (lang_specific_pre_link ())
7436 /* Determine if there are any linker input files. */
7437 num_linker_inputs
= 0;
7438 for (i
= 0; (int) i
< n_infiles
; i
++)
7439 if (explicit_link_files
[i
] || outfiles
[i
] != NULL
)
7440 num_linker_inputs
++;
7442 /* Run ld to link all the compiler output files. */
7444 if (num_linker_inputs
> 0 && error_count
== 0 && print_subprocess_help
< 2)
7446 int tmp
= execution_count
;
7448 /* We'll use ld if we can't find collect2. */
7449 if (! strcmp (linker_name_spec
, "collect2"))
7451 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
, false);
7453 linker_name_spec
= "ld";
7455 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
7457 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH", false);
7458 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
, true);
7460 if (print_subprocess_help
== 1)
7462 printf (_("\nLinker options\n==============\n\n"));
7463 printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
7464 " to the linker.\n\n"));
7467 value
= do_spec (link_command_spec
);
7470 linker_was_run
= (tmp
!= execution_count
);
7473 /* If options said don't run linker,
7474 complain about input files to be given to the linker. */
7476 if (! linker_was_run
&& error_count
== 0)
7477 for (i
= 0; (int) i
< n_infiles
; i
++)
7478 if (explicit_link_files
[i
]
7479 && !(infiles
[i
].language
&& infiles
[i
].language
[0] == '*'))
7480 error ("%s: linker input file unused because linking not done",
7483 /* Delete some or all of the temporary files we made. */
7486 delete_failure_queue ();
7487 delete_temp_files ();
7489 if (print_help_list
)
7491 printf (("\nFor bug reporting instructions, please see:\n"));
7492 printf ("%s\n", bug_report_url
);
7495 return (signal_count
!= 0 ? 2
7496 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
7500 /* Find the proper compilation spec for the file name NAME,
7501 whose length is LENGTH. LANGUAGE is the specified language,
7502 or 0 if this file is to be passed to the linker. */
7504 static struct compiler
*
7505 lookup_compiler (const char *name
, size_t length
, const char *language
)
7507 struct compiler
*cp
;
7509 /* If this was specified by the user to be a linker input, indicate that. */
7510 if (language
!= 0 && language
[0] == '*')
7513 /* Otherwise, look for the language, if one is spec'd. */
7516 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7517 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
7520 error ("language %s not recognized", language
);
7524 /* Look for a suffix. */
7525 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7527 if (/* The suffix `-' matches only the file name `-'. */
7528 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7529 || (strlen (cp
->suffix
) < length
7530 /* See if the suffix matches the end of NAME. */
7531 && !strcmp (cp
->suffix
,
7532 name
+ length
- strlen (cp
->suffix
))
7537 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
7538 /* Look again, but case-insensitively this time. */
7540 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
7542 if (/* The suffix `-' matches only the file name `-'. */
7543 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
7544 || (strlen (cp
->suffix
) < length
7545 /* See if the suffix matches the end of NAME. */
7546 && ((!strcmp (cp
->suffix
,
7547 name
+ length
- strlen (cp
->suffix
))
7548 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
7549 && !strcasecmp (cp
->suffix
,
7550 name
+ length
- strlen (cp
->suffix
)))
7556 if (cp
>= compilers
)
7558 if (cp
->spec
[0] != '@')
7559 /* A non-alias entry: return it. */
7562 /* An alias entry maps a suffix to a language.
7563 Search for the language; pass 0 for NAME and LENGTH
7564 to avoid infinite recursion if language not found. */
7565 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
7571 save_string (const char *s
, int len
)
7573 char *result
= XNEWVEC (char, len
+ 1);
7575 memcpy (result
, s
, len
);
7581 pfatal_with_name (const char *name
)
7583 perror_with_name (name
);
7584 delete_temp_files ();
7589 perror_with_name (const char *name
)
7591 error ("%s: %s", name
, xstrerror (errno
));
7594 /* Output an error message and exit. */
7597 fancy_abort (const char *file
, int line
, const char *func
)
7599 fatal_ice ("internal gcc abort in %s, at %s:%d", func
, file
, line
);
7602 /* Output an error message and exit. */
7605 fatal_ice (const char *cmsgid
, ...)
7609 va_start (ap
, cmsgid
);
7611 fprintf (stderr
, "%s: ", programname
);
7612 vfprintf (stderr
, _(cmsgid
), ap
);
7614 fprintf (stderr
, "\n");
7615 delete_temp_files ();
7616 exit (pass_exit_codes
? ICE_EXIT_CODE
: 1);
7620 fatal (const char *cmsgid
, ...)
7624 va_start (ap
, cmsgid
);
7626 fprintf (stderr
, "%s: ", programname
);
7627 vfprintf (stderr
, _(cmsgid
), ap
);
7629 fprintf (stderr
, "\n");
7630 delete_temp_files ();
7634 /* The argument is actually c-format, not gcc-internal-format,
7635 but because functions with identical names are used through
7636 the rest of the compiler with gcc-internal-format, we just
7637 need to hope all users of these functions use the common
7638 subset between c-format and gcc-internal-format. */
7641 error (const char *gmsgid
, ...)
7645 va_start (ap
, gmsgid
);
7646 fprintf (stderr
, "%s: ", programname
);
7647 vfprintf (stderr
, _(gmsgid
), ap
);
7650 fprintf (stderr
, "\n");
7654 notice (const char *cmsgid
, ...)
7658 va_start (ap
, cmsgid
);
7659 vfprintf (stderr
, _(cmsgid
), ap
);
7664 validate_switches_from_spec (const char *spec
)
7666 const char *p
= spec
;
7669 if (c
== '%' && (*p
== '{' || *p
== '<' || (*p
== 'W' && *++p
== '{')))
7670 /* We have a switch spec. */
7671 p
= validate_switches (p
+ 1);
7675 validate_all_switches (void)
7677 struct compiler
*comp
;
7678 struct spec_list
*spec
;
7680 for (comp
= compilers
; comp
->spec
; comp
++)
7681 validate_switches_from_spec (comp
->spec
);
7683 /* Look through the linked list of specs read from the specs file. */
7684 for (spec
= specs
; spec
; spec
= spec
->next
)
7685 validate_switches_from_spec (*spec
->ptr_spec
);
7687 validate_switches_from_spec (link_command_spec
);
7690 /* Look at the switch-name that comes after START
7691 and mark as valid all supplied switches that match it. */
7694 validate_switches (const char *start
)
7696 const char *p
= start
;
7700 bool suffix
= false;
7701 bool starred
= false;
7703 #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7712 if (*p
== '.' || *p
== ',')
7716 while (ISIDNUM (*p
) || *p
== '-' || *p
== '+' || *p
== '='
7717 || *p
== ',' || *p
== '.' || *p
== '@')
7722 starred
= true, p
++;
7728 /* Mark all matching switches as valid. */
7729 for (i
= 0; i
< n_switches
; i
++)
7730 if (!strncmp (switches
[i
].part1
, atom
, len
)
7731 && (starred
|| switches
[i
].part1
[len
] == 0))
7732 switches
[i
].validated
= 1;
7736 if (*p
&& (p
[-1] == '|' || p
[-1] == '&'))
7739 if (*p
&& p
[-1] == ':')
7741 while (*p
&& *p
!= ';' && *p
!= '}')
7746 if (*p
== '{' || *p
== '<')
7747 p
= validate_switches (p
+1);
7748 else if (p
[0] == 'W' && p
[1] == '{')
7749 p
= validate_switches (p
+2);
7756 if (*p
&& p
[-1] == ';')
7770 static struct mdswitchstr
*mdswitches
;
7771 static int n_mdswitches
;
7773 /* Check whether a particular argument was used. The first time we
7774 canonicalize the switches to keep only the ones we care about. */
7777 used_arg (const char *p
, int len
)
7782 const char *replace
;
7787 static struct mswitchstr
*mswitches
;
7788 static int n_mswitches
;
7793 struct mswitchstr
*matches
;
7797 /* Break multilib_matches into the component strings of string
7798 and replacement string. */
7799 for (q
= multilib_matches
; *q
!= '\0'; q
++)
7804 = (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
7806 q
= multilib_matches
;
7815 fatal ("multilib spec '%s' is invalid", multilib_matches
);
7819 matches
[i
].len
= q
- matches
[i
].str
;
7821 matches
[i
].replace
= ++q
;
7822 while (*q
!= ';' && *q
!= '\0')
7825 goto invalid_matches
;
7828 matches
[i
].rep_len
= q
- matches
[i
].replace
;
7834 /* Now build a list of the replacement string for switches that we care
7835 about. Make sure we allocate at least one entry. This prevents
7836 xmalloc from calling fatal, and prevents us from re-executing this
7839 = XNEWVEC (struct mswitchstr
, n_mdswitches
+ (n_switches
? n_switches
: 1));
7840 for (i
= 0; i
< n_switches
; i
++)
7841 if ((switches
[i
].live_cond
& SWITCH_IGNORE
) == 0)
7843 int xlen
= strlen (switches
[i
].part1
);
7844 for (j
= 0; j
< cnt
; j
++)
7845 if (xlen
== matches
[j
].len
7846 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
7848 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
7849 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
7850 mswitches
[n_mswitches
].replace
= (char *) 0;
7851 mswitches
[n_mswitches
].rep_len
= 0;
7857 /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
7858 on the command line nor any options mutually incompatible with
7860 for (i
= 0; i
< n_mdswitches
; i
++)
7864 for (q
= multilib_options
; *q
!= '\0'; q
++)
7870 while (strncmp (q
, mdswitches
[i
].str
, mdswitches
[i
].len
) != 0
7871 || strchr (" /", q
[mdswitches
[i
].len
]) == NULL
)
7873 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7880 if (*q
!= ' ' && *q
!= '\0')
7882 while (*r
!= ' ' && *r
!= '\0')
7885 while (*q
!= ' ' && *q
!= '/' && *q
!= '\0')
7888 if (used_arg (r
, q
- r
))
7893 mswitches
[n_mswitches
].str
= mdswitches
[i
].str
;
7894 mswitches
[n_mswitches
].len
= mdswitches
[i
].len
;
7895 mswitches
[n_mswitches
].replace
= (char *) 0;
7896 mswitches
[n_mswitches
].rep_len
= 0;
7909 for (i
= 0; i
< n_mswitches
; i
++)
7910 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
7917 default_arg (const char *p
, int len
)
7921 for (i
= 0; i
< n_mdswitches
; i
++)
7922 if (len
== mdswitches
[i
].len
&& ! strncmp (p
, mdswitches
[i
].str
, len
))
7928 /* Work out the subdirectory to use based on the options. The format of
7929 multilib_select is a list of elements. Each element is a subdirectory
7930 name followed by a list of options followed by a semicolon. The format
7931 of multilib_exclusions is the same, but without the preceding
7932 directory. First gcc will check the exclusions, if none of the options
7933 beginning with an exclamation point are present, and all of the other
7934 options are present, then we will ignore this completely. Passing
7935 that, gcc will consider each multilib_select in turn using the same
7936 rules for matching the options. If a match is found, that subdirectory
7940 set_multilib_dir (void)
7943 unsigned int this_path_len
;
7944 const char *this_path
, *this_arg
;
7945 const char *start
, *end
;
7947 int ok
, ndfltok
, first
;
7950 start
= multilib_defaults
;
7951 while (*start
== ' ' || *start
== '\t')
7953 while (*start
!= '\0')
7956 while (*start
!= ' ' && *start
!= '\t' && *start
!= '\0')
7958 while (*start
== ' ' || *start
== '\t')
7966 mdswitches
= XNEWVEC (struct mdswitchstr
, n_mdswitches
);
7967 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
7969 while (*start
== ' ' || *start
== '\t')
7975 for (end
= start
+ 1;
7976 *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
7979 obstack_grow (&multilib_obstack
, start
, end
- start
);
7980 obstack_1grow (&multilib_obstack
, 0);
7981 mdswitches
[i
].str
= XOBFINISH (&multilib_obstack
, const char *);
7982 mdswitches
[i
++].len
= end
- start
;
7989 p
= multilib_exclusions
;
7992 /* Ignore newlines. */
7999 /* Check the arguments. */
8006 fatal ("multilib exclusions '%s' is invalid",
8007 multilib_exclusions
);
8017 while (*p
!= ' ' && *p
!= ';')
8020 goto invalid_exclusions
;
8024 if (*this_arg
!= '!')
8032 ok
= used_arg (this_arg
, p
- this_arg
);
8047 p
= multilib_select
;
8050 /* Ignore newlines. */
8057 /* Get the initial path. */
8064 fatal ("multilib select '%s' is invalid",
8069 this_path_len
= p
- this_path
;
8071 /* Check the arguments. */
8078 goto invalid_select
;
8087 while (*p
!= ' ' && *p
!= ';')
8090 goto invalid_select
;
8094 if (*this_arg
!= '!')
8102 /* If this is a default argument, we can just ignore it.
8103 This is true even if this_arg begins with '!'. Beginning
8104 with '!' does not mean that this argument is necessarily
8105 inappropriate for this library: it merely means that
8106 there is a more specific library which uses this
8107 argument. If this argument is a default, we need not
8108 consider that more specific library. */
8109 ok
= used_arg (this_arg
, p
- this_arg
);
8116 if (default_arg (this_arg
, p
- this_arg
))
8125 if (this_path_len
!= 1
8126 || this_path
[0] != '.')
8128 char *new_multilib_dir
= XNEWVEC (char, this_path_len
+ 1);
8131 strncpy (new_multilib_dir
, this_path
, this_path_len
);
8132 new_multilib_dir
[this_path_len
] = '\0';
8133 q
= strchr (new_multilib_dir
, ':');
8136 multilib_dir
= new_multilib_dir
;
8143 const char *q
= this_path
, *end
= this_path
+ this_path_len
;
8145 while (q
< end
&& *q
!= ':')
8149 char *new_multilib_os_dir
= XNEWVEC (char, end
- q
);
8150 memcpy (new_multilib_os_dir
, q
+ 1, end
- q
- 1);
8151 new_multilib_os_dir
[end
- q
- 1] = '\0';
8152 multilib_os_dir
= new_multilib_os_dir
;
8160 if (multilib_dir
== NULL
&& multilib_os_dir
!= NULL
8161 && strcmp (multilib_os_dir
, ".") == 0)
8163 free (CONST_CAST (char *, multilib_os_dir
));
8164 multilib_os_dir
= NULL
;
8166 else if (multilib_dir
!= NULL
&& multilib_os_dir
== NULL
)
8167 multilib_os_dir
= multilib_dir
;
8170 /* Print out the multiple library subdirectory selection
8171 information. This prints out a series of lines. Each line looks
8172 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
8173 required. Only the desired options are printed out, the negative
8174 matches. The options are print without a leading dash. There are
8175 no spaces to make it easy to use the information in the shell.
8176 Each subdirectory is printed only once. This assumes the ordering
8177 generated by the genmultilib script. Also, we leave out ones that match
8181 print_multilib_info (void)
8183 const char *p
= multilib_select
;
8184 const char *last_path
= 0, *this_path
;
8186 unsigned int last_path_len
= 0;
8191 /* Ignore newlines. */
8198 /* Get the initial path. */
8205 fatal ("multilib select '%s' is invalid", multilib_select
);
8211 /* When --disable-multilib was used but target defines
8212 MULTILIB_OSDIRNAMES, entries starting with .: are there just
8213 to find multilib_os_dir, so skip them from output. */
8214 if (this_path
[0] == '.' && this_path
[1] == ':')
8217 /* Check for matches with the multilib_exclusions. We don't bother
8218 with the '!' in either list. If any of the exclusion rules match
8219 all of its options with the select rule, we skip it. */
8221 const char *e
= multilib_exclusions
;
8222 const char *this_arg
;
8227 /* Ignore newlines. */
8234 /* Check the arguments. */
8243 fatal ("multilib exclusion '%s' is invalid",
8244 multilib_exclusions
);
8255 while (*e
!= ' ' && *e
!= ';')
8258 goto invalid_exclusion
;
8266 int len
= e
- this_arg
;
8269 goto invalid_select
;
8273 while (*q
!= ' ' && *q
!= ';')
8276 goto invalid_select
;
8280 if (! strncmp (arg
, this_arg
,
8281 (len
< q
- arg
) ? q
- arg
: len
)
8282 || default_arg (this_arg
, e
- this_arg
))
8312 /* If this is a duplicate, skip it. */
8313 skip
= (last_path
!= 0
8314 && (unsigned int) (p
- this_path
) == last_path_len
8315 && ! strncmp (last_path
, this_path
, last_path_len
));
8317 last_path
= this_path
;
8318 last_path_len
= p
- this_path
;
8321 /* If this directory requires any default arguments, we can skip
8322 it. We will already have printed a directory identical to
8323 this one which does not require that default argument. */
8334 goto invalid_select
;
8341 while (*q
!= ' ' && *q
!= ';')
8344 goto invalid_select
;
8349 && default_arg (arg
, q
- arg
))
8364 for (p1
= last_path
; p1
< p
&& *p1
!= ':'; p1
++)
8375 goto invalid_select
;
8383 use_arg
= *p
!= '!';
8388 while (*p
!= ' ' && *p
!= ';')
8391 goto invalid_select
;
8403 /* If there are extra options, print them now. */
8404 if (multilib_extra
&& *multilib_extra
)
8406 int print_at
= TRUE
;
8409 for (q
= multilib_extra
; *q
!= '\0'; q
++)
8430 /* getenv built-in spec function.
8432 Returns the value of the environment variable given by its first
8433 argument, concatenated with the second argument. If the
8434 environment variable is not defined, a fatal error is issued. */
8437 getenv_spec_function (int argc
, const char **argv
)
8447 value
= getenv (argv
[0]);
8449 fatal ("environment variable \"%s\" not defined", argv
[0]);
8451 /* We have to escape every character of the environment variable so
8452 they are not interpreted as active spec characters. A
8453 particularly painful case is when we are reading a variable
8454 holding a windows path complete with \ separators. */
8455 len
= strlen (value
) * 2 + strlen (argv
[1]) + 1;
8456 result
= XNEWVAR (char, len
);
8457 for (ptr
= result
; *value
; ptr
+= 2)
8463 strcpy (ptr
, argv
[1]);
8468 /* if-exists built-in spec function.
8470 Checks to see if the file specified by the absolute pathname in
8471 ARGS exists. Returns that pathname if found.
8473 The usual use for this function is to check for a library file
8474 (whose name has been expanded with %s). */
8477 if_exists_spec_function (int argc
, const char **argv
)
8479 /* Must have only one argument. */
8480 if (argc
== 1 && IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8486 /* if-exists-else built-in spec function.
8488 This is like if-exists, but takes an additional argument which
8489 is returned if the first argument does not exist. */
8492 if_exists_else_spec_function (int argc
, const char **argv
)
8494 /* Must have exactly two arguments. */
8498 if (IS_ABSOLUTE_PATH (argv
[0]) && ! access (argv
[0], R_OK
))
8504 /* replace-outfile built-in spec function.
8506 This looks for the first argument in the outfiles array's name and
8507 replaces it with the second argument. */
8510 replace_outfile_spec_function (int argc
, const char **argv
)
8513 /* Must have exactly two arguments. */
8517 for (i
= 0; i
< n_infiles
; i
++)
8519 if (outfiles
[i
] && !strcmp (outfiles
[i
], argv
[0]))
8520 outfiles
[i
] = xstrdup (argv
[1]);
8525 /* Given two version numbers, compares the two numbers.
8526 A version number must match the regular expression
8527 ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
8530 compare_version_strings (const char *v1
, const char *v2
)
8535 if (regcomp (&r
, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
8536 REG_EXTENDED
| REG_NOSUB
) != 0)
8538 rresult
= regexec (&r
, v1
, 0, NULL
, 0);
8539 if (rresult
== REG_NOMATCH
)
8540 fatal ("invalid version number `%s'", v1
);
8541 else if (rresult
!= 0)
8543 rresult
= regexec (&r
, v2
, 0, NULL
, 0);
8544 if (rresult
== REG_NOMATCH
)
8545 fatal ("invalid version number `%s'", v2
);
8546 else if (rresult
!= 0)
8549 return strverscmp (v1
, v2
);
8553 /* version_compare built-in spec function.
8555 This takes an argument of the following form:
8557 <comparison-op> <arg1> [<arg2>] <switch> <result>
8559 and produces "result" if the comparison evaluates to true,
8560 and nothing if it doesn't.
8562 The supported <comparison-op> values are:
8564 >= true if switch is a later (or same) version than arg1
8566 < true if switch is an earlier version than arg1
8568 >< true if switch is arg1 or later, and earlier than arg2
8569 <> true if switch is earlier than arg1 or is arg2 or later
8571 If the switch is not present, the condition is false unless
8572 the first character of the <comparison-op> is '!'.
8575 %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
8576 adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
8579 version_compare_spec_function (int argc
, const char **argv
)
8583 const char *switch_value
= NULL
;
8588 fatal ("too few arguments to %%:version-compare");
8589 if (argv
[0][0] == '\0')
8591 if ((argv
[0][1] == '<' || argv
[0][1] == '>') && argv
[0][0] != '!')
8593 if (argc
!= nargs
+ 3)
8594 fatal ("too many arguments to %%:version-compare");
8596 switch_len
= strlen (argv
[nargs
+ 1]);
8597 for (i
= 0; i
< n_switches
; i
++)
8598 if (!strncmp (switches
[i
].part1
, argv
[nargs
+ 1], switch_len
)
8599 && check_live_switch (i
, switch_len
))
8600 switch_value
= switches
[i
].part1
+ switch_len
;
8602 if (switch_value
== NULL
)
8606 comp1
= compare_version_strings (switch_value
, argv
[1]);
8608 comp2
= compare_version_strings (switch_value
, argv
[2]);
8610 comp2
= -1; /* This value unused. */
8613 switch (argv
[0][0] << 8 | argv
[0][1])
8615 case '>' << 8 | '=':
8616 result
= comp1
>= 0;
8618 case '!' << 8 | '<':
8619 result
= comp1
>= 0 || switch_value
== NULL
;
8624 case '!' << 8 | '>':
8625 result
= comp1
< 0 || switch_value
== NULL
;
8627 case '>' << 8 | '<':
8628 result
= comp1
>= 0 && comp2
< 0;
8630 case '<' << 8 | '>':
8631 result
= comp1
< 0 || comp2
>= 0;
8635 fatal ("unknown operator '%s' in %%:version-compare", argv
[0]);
8640 return argv
[nargs
+ 2];
8643 /* %:include builtin spec function. This differs from %include in that it
8644 can be nested inside a spec, and thus be conditionalized. It takes
8645 one argument, the filename, and looks for it in the startfile path.
8646 The result is always NULL, i.e. an empty expansion. */
8649 include_spec_function (int argc
, const char **argv
)
8656 file
= find_a_file (&startfile_prefixes
, argv
[0], R_OK
, true);
8657 read_specs (file
? file
: argv
[0], FALSE
);
8662 /* %:print-asm-header spec function. Print a banner to say that the
8663 following output is from the assembler. */
8666 print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED
,
8667 const char **argv ATTRIBUTE_UNUSED
)
8669 printf (_("Assembler options\n=================\n\n"));
8670 printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
8675 /* %:compare-debug-dump-opt spec function. Save the last argument,
8676 expected to be the last -fdump-final-insns option, or generate a
8680 compare_debug_dump_opt_spec_function (int arg
,
8681 const char **argv ATTRIBUTE_UNUSED
)
8688 fatal ("too many arguments to %%:compare-debug-dump-opt");
8693 do_spec_2 ("%{fdump-final-insns=*:%*}");
8694 do_spec_1 (" ", 0, NULL
);
8696 if (argbuf_index
> 0)
8698 name
= xstrdup (argv
[argbuf_index
- 1]);
8703 #define OPT "-fdump-final-insns="
8704 ret
= "-fdump-final-insns=%g.gkd";
8706 do_spec_2 (ret
+ sizeof (OPT
) - 1);
8707 do_spec_1 (" ", 0, NULL
);
8710 gcc_assert (argbuf_index
> 0);
8712 name
= xstrdup (argbuf
[argbuf_index
- 1]);
8715 which
= compare_debug
< 0;
8716 debug_check_temp_file
[which
] = name
;
8719 error ("compare-debug: [%i]=\"%s\", ret %s", which
, name
, ret
);
8725 static const char *debug_auxbase_opt
;
8727 /* %:compare-debug-self-opt spec function. Expands to the options
8728 that are to be passed in the second compilation of
8732 compare_debug_self_opt_spec_function (int arg
,
8733 const char **argv ATTRIBUTE_UNUSED
)
8736 fatal ("too many arguments to %%:compare-debug-self-opt");
8738 if (compare_debug
>= 0)
8741 do_spec_2 ("%{c|S:%{o*:%*}}");
8742 do_spec_1 (" ", 0, NULL
);
8744 if (argbuf_index
> 0)
8745 debug_auxbase_opt
= concat ("-auxbase-strip ",
8746 argbuf
[argbuf_index
- 1],
8749 debug_auxbase_opt
= NULL
;
8752 %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
8753 %<fdump-final-insns=* -w -S -o %j \
8754 %{!fcompare-debug-second:-fcompare-debug-second} \
8755 ", compare_debug_opt
, NULL
);
8758 /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase
8759 options that are to be passed in the second compilation of
8760 compare-debug. It expects, as an argument, the basename of the
8761 current input file name, with the .gk suffix appended to it. */
8764 compare_debug_auxbase_opt_spec_function (int arg
,
8771 fatal ("too few arguments to %%:compare-debug-auxbase-opt");
8774 fatal ("too many arguments to %%:compare-debug-auxbase-opt");
8776 if (compare_debug
>= 0)
8779 len
= strlen (argv
[0]);
8780 if (len
< 3 || strcmp (argv
[0] + len
- 3, ".gk") != 0)
8781 fatal ("argument to %%:compare-debug-auxbase-opt does not end in .gk");
8783 if (debug_auxbase_opt
)
8784 return debug_auxbase_opt
;
8786 #define OPT "-auxbase "
8789 name
= (char*) xmalloc (sizeof (OPT
) + len
);
8790 memcpy (name
, OPT
, sizeof (OPT
) - 1);
8791 memcpy (name
+ sizeof (OPT
) - 1, argv
[0], len
);
8792 name
[sizeof (OPT
) - 1 + len
] = '\0';