1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
40 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Include multi-lib information. */
64 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
67 #define WTERMSIG(S) ((S) & 0x7f)
70 #define WIFEXITED(S) (((S) & 0xff) == 0)
73 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
76 /* Add prototype support. */
78 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
79 #define PROTO(ARGS) ARGS
81 #define PROTO(ARGS) ()
87 #define PVPROTO(ARGS) ARGS
88 #define VPROTO(ARGS) ARGS
89 #define VA_START(va_list,var) va_start(va_list,var)
91 #define PVPROTO(ARGS) ()
92 #define VPROTO(ARGS) (va_alist) va_dcl
93 #define VA_START(va_list,var) va_start(va_list)
97 /* Define a generic NULL if one hasn't already been defined. */
103 /* Define O_RDONLY if the system hasn't defined it for us. */
109 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
110 #define GENERIC_PTR void *
112 #define GENERIC_PTR char *
117 #define NULL_PTR ((GENERIC_PTR)0)
124 /* On MSDOS, write temp files in current dir
125 because there's no place else we can expect to use. */
132 /* Test if something is a normal file. */
134 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
137 /* Test if something is a directory. */
139 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
142 /* By default there is no special suffix for executables. */
143 #ifndef EXECUTABLE_SUFFIX
144 #define EXECUTABLE_SUFFIX ""
147 /* By default, the suffix for object files is the letter "o". */
148 #ifndef OBJECT_SUFFIX
149 #define OBJECT_SUFFIX "o"
152 /* By default, colon separates directories in a path. */
153 #ifndef PATH_SEPARATOR
154 #define PATH_SEPARATOR ':'
157 #ifndef DIR_SEPARATOR
158 #define DIR_SEPARATOR '/'
161 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
163 #define obstack_chunk_alloc xmalloc
164 #define obstack_chunk_free free
167 extern char *getenv ();
174 #ifndef HAVE_STRERROR
176 extern const char *const sys_errlist
[];
178 extern char *sys_errlist
[];
181 extern char *strerror();
184 extern int execv (), execvp ();
186 /* If a stage of compilation returns an exit status >= 1,
187 compilation of that file ceases. */
189 #define MIN_FATAL_STATUS 1
191 /* Flag saying to print the directories gcc will search through looking for
192 programs, libraries, etc. */
194 static int print_search_dirs
;
196 /* Flag saying to print the full filename of this file
197 as found through our usual search mechanism. */
199 static char *print_file_name
= NULL
;
201 /* As print_file_name, but search for executable file. */
203 static char *print_prog_name
= NULL
;
205 /* Flag saying to print the relative path we'd use to
206 find libgcc.a given the current compiler flags. */
208 static int print_multi_directory
;
210 /* Flag saying to print the list of subdirectories and
211 compiler flags used to select them in a standard form. */
213 static int print_multi_lib
;
215 /* Flag indicating whether we should print the command and arguments */
217 static int verbose_flag
;
219 /* Nonzero means write "temp" files in source directory
220 and use the source file's name in them, and don't delete them. */
222 static int save_temps_flag
;
224 /* The compiler version. */
226 static char *compiler_version
;
228 /* The target version specified with -V */
230 static char *spec_version
= DEFAULT_TARGET_VERSION
;
232 /* The target machine specified with -b. */
234 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
236 /* Nonzero if cross-compiling.
237 When -b is used, the value comes from the `specs' file. */
240 static int cross_compile
= 1;
242 static int cross_compile
= 0;
245 /* The number of errors that have occurred; the link phase will not be
246 run if this is non-zero. */
247 static int error_count
= 0;
249 /* This is the obstack which we use to allocate many strings. */
251 static struct obstack obstack
;
253 /* This is the obstack to build an environment variable to pass to
254 collect2 that describes all of the relevant switches of what to
255 pass the compiler in building the list of pointers to constructors
258 static struct obstack collect_obstack
;
260 extern char *version_string
;
262 /* Forward declaration for prototypes. */
265 static void set_spec
PROTO((char *, char *));
266 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
267 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
268 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
269 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
270 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
271 static char *skip_whitespace
PROTO((char *));
272 static void record_temp_file
PROTO((char *, int, int));
273 static void delete_if_ordinary
PROTO((char *));
274 static void delete_temp_files
PROTO((void));
275 static void delete_failure_queue
PROTO((void));
276 static void clear_failure_queue
PROTO((void));
277 static char *choose_temp_base_try
PROTO((char *, char *));
278 static void choose_temp_base
PROTO((void));
279 static int check_live_switch
PROTO((int, int));
280 static char *handle_braces
PROTO((char *));
281 static char *save_string
PROTO((char *, int));
282 static char *concat
PROTO((char *, char *));
283 static char *concat3
PROTO((char *, char *, char *));
284 static char *concat4
PROTO((char *, char *, char *, char *));
285 static char *concat6
PROTO((char *, char *, char *, char *, char *, \
287 static int do_spec
PROTO((char *));
288 static int do_spec_1
PROTO((char *, int, char *));
289 static char *find_file
PROTO((char *));
290 static int is_directory
PROTO((char *, char *, int));
291 static void validate_switches
PROTO((char *));
292 static void validate_all_switches
PROTO((void));
293 static void give_switch
PROTO((int, int));
294 static int used_arg
PROTO((char *, int));
295 static void set_multilib_dir
PROTO((void));
296 static void print_multilib_info
PROTO((void));
297 static void pfatal_with_name
PROTO((char *));
298 static void perror_with_name
PROTO((char *));
299 static void perror_exec
PROTO((char *));
301 static void fatal
PVPROTO((char *, ...));
302 static void error
PVPROTO((char *, ...));
304 /* We must not provide any prototype here, even if ANSI C. */
305 static void fatal
PROTO(());
306 static void error
PROTO(());
313 /* Specs are strings containing lines, each of which (if not blank)
314 is made up of a program name, and arguments separated by spaces.
315 The program name must be exact and start from root, since no path
316 is searched and it is unreliable to depend on the current working directory.
317 Redirection of input or output is not supported; the subprograms must
318 accept filenames saying what files to read and write.
320 In addition, the specs can contain %-sequences to substitute variable text
321 or for conditional text. Here is a table of all defined %-sequences.
322 Note that spaces are not generated automatically around the results of
323 expanding these sequences; therefore, you can concatenate them together
324 or with constant text in a single argument.
326 %% substitute one % into the program name or argument.
327 %i substitute the name of the input file being processed.
328 %b substitute the basename of the input file being processed.
329 This is the substring up to (and not including) the last period
330 and not including the directory.
331 %g substitute the temporary-file-name-base. This is a string chosen
332 once per compilation. Different temporary file names are made by
333 concatenation of constant strings on the end, as in `%g.s'.
334 %g also has the same effect of %d.
335 %u like %g, but make the temporary file name unique.
336 %U returns the last file name generated with %u.
337 %d marks the argument containing or following the %d as a
338 temporary file name, so that that file will be deleted if CC exits
339 successfully. Unlike %g, this contributes no text to the argument.
340 %w marks the argument containing or following the %w as the
341 "output file" of this compilation. This puts the argument
342 into the sequence of arguments that %o will substitute later.
344 like %{...} but mark last argument supplied within
345 as a file to be deleted on failure.
346 %o substitutes the names of all the output files, with spaces
347 automatically placed around them. You should write spaces
348 around the %o as well or the results are undefined.
349 %o is for use in the specs for running the linker.
350 Input files whose names have no recognized suffix are not compiled
351 at all, but they are included among the output files, so they will
353 %O substitutes the suffix for object files.
354 %p substitutes the standard macro predefinitions for the
355 current target machine. Use this when running cpp.
356 %P like %p, but puts `__' before and after the name of each macro.
357 (Except macros that already have __.)
359 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
360 %s current argument is the name of a library or startup file of some sort.
361 Search for that file in a standard list of directories
362 and substitute the full name found.
363 %eSTR Print STR as an error message. STR is terminated by a newline.
364 Use this when inconsistent options are detected.
365 %x{OPTION} Accumulate an option for %X.
366 %X Output the accumulated linker options specified by compilations.
367 %Y Output the accumulated assembler options specified by compilations.
368 %Z Output the accumulated preprocessor options specified by compilations.
369 %v1 Substitute the major version number of GCC.
370 (For version 2.5.n, this is 2.)
371 %v2 Substitute the minor version number of GCC.
372 (For version 2.5.n, this is 5.)
373 %a process ASM_SPEC as a spec.
374 This allows config.h to specify part of the spec for running as.
375 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
376 used here. This can be used to run a post-processor after the
377 assembler has done it's job.
378 %D Dump out a -L option for each directory in startfile_prefixes.
379 If multilib_dir is set, extra entries are generated with it affixed.
380 %l process LINK_SPEC as a spec.
381 %L process LIB_SPEC as a spec.
382 %G process LIBGCC_SPEC as a spec.
383 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
384 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
385 %c process SIGNED_CHAR_SPEC as a spec.
386 %C process CPP_SPEC as a spec. A capital C is actually used here.
387 %1 process CC1_SPEC as a spec.
388 %2 process CC1PLUS_SPEC as a spec.
389 %| output "-" if the input for the current command is coming from a pipe.
390 %* substitute the variable part of a matched option. (See below.)
391 Note that each comma in the substituted string is replaced by
393 %{S} substitutes the -S switch, if that switch was given to CC.
394 If that switch was not specified, this substitutes nothing.
395 Here S is a metasyntactic variable.
396 %{S*} substitutes all the switches specified to CC whose names start
397 with -S. This is used for -o, -D, -I, etc; switches that take
398 arguments. CC considers `-o foo' as being one switch whose
399 name starts with `o'. %{o*} would substitute this text,
400 including the space; thus, two arguments would be generated.
401 %{S*:X} substitutes X if one or more switches whose names start with -S are
402 specified to CC. Note that the tail part of the -S option
403 (i.e. the part matched by the `*') will be substituted for each
404 occurrence of %* within X.
405 %{S:X} substitutes X, but only if the -S switch was given to CC.
406 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
407 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
408 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
409 %{.S:X} substitutes X, but only if processing a file with suffix S.
410 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
411 %(Spec) processes a specification defined in a specs file as *Spec:
412 %[Spec] as above, but put __ around -D arguments
414 The conditional text X in a %{S:X} or %{!S:X} construct may contain
415 other nested % constructs or spaces, or even newlines. They are
416 processed as usual, as described above.
418 The -O, -f, -m, and -W switches are handled specifically in these
419 constructs. If another value of -O or the negated form of a -f, -m, or
420 -W switch is found later in the command line, the earlier switch
421 value is ignored, except with {S*} where S is just one letter; this
422 passes all matching options.
424 The character | is used to indicate that a command should be piped to
425 the following command, but only if -pipe is specified.
427 Note that it is built into CC which switches take arguments and which
428 do not. You might think it would be useful to generalize this to
429 allow each compiler's spec to say which switches take arguments. But
430 this cannot be done in a consistent fashion. CC cannot even decide
431 which input files have been specified without knowing which switches
432 take arguments, and it must know which input files to compile in order
433 to tell which compilers to run.
435 CC also knows implicitly that arguments starting in `-l' are to be
436 treated as compiler output files, and passed to the linker in their
437 proper position among the other output files. */
439 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
441 /* config.h can define ASM_SPEC to provide extra args to the assembler
442 or extra switch-translations. */
447 /* config.h can define ASM_FINAL_SPEC to run a post processor after
448 the assembler has run. */
449 #ifndef ASM_FINAL_SPEC
450 #define ASM_FINAL_SPEC ""
453 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
454 or extra switch-translations. */
459 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
460 or extra switch-translations. */
465 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
466 or extra switch-translations. */
468 #define CC1PLUS_SPEC ""
471 /* config.h can define LINK_SPEC to provide extra args to the linker
472 or extra switch-translations. */
477 /* config.h can define LIB_SPEC to override the default libraries. */
479 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
482 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
485 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
486 /* Have gcc do the search for libgcc.a. */
487 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
489 #define LIBGCC_SPEC "%{!shared:-lgcc}"
493 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
494 #ifndef STARTFILE_SPEC
495 #define STARTFILE_SPEC \
496 "%{!shared:%{pg:gcrt0.%O%s}%{!pg:%{p:mcrt0.%O%s}%{!p:crt0.%O%s}}}"
499 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
500 Make the string nonempty to require spaces there. */
501 #ifndef SWITCHES_NEED_SPACES
502 #define SWITCHES_NEED_SPACES ""
505 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
507 #define ENDFILE_SPEC ""
510 /* This spec is used for telling cpp whether char is signed or not. */
511 #ifndef SIGNED_CHAR_SPEC
512 /* Use #if rather than ?:
513 because MIPS C compiler rejects like ?: in initializers. */
514 #if DEFAULT_SIGNED_CHAR
515 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
517 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
521 /* MULTILIB_SELECT comes from multilib.h. It gives a
522 string interpreted by set_multilib_dir to select a library
523 subdirectory based on the compiler options. */
524 #ifndef MULTILIB_SELECT
525 #define MULTILIB_SELECT ". ;"
528 static char *cpp_spec
= CPP_SPEC
;
529 static char *cpp_predefines
= CPP_PREDEFINES
;
530 static char *cc1_spec
= CC1_SPEC
;
531 static char *cc1plus_spec
= CC1PLUS_SPEC
;
532 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
533 static char *asm_spec
= ASM_SPEC
;
534 static char *asm_final_spec
= ASM_FINAL_SPEC
;
535 static char *link_spec
= LINK_SPEC
;
536 static char *lib_spec
= LIB_SPEC
;
537 static char *libgcc_spec
= LIBGCC_SPEC
;
538 static char *endfile_spec
= ENDFILE_SPEC
;
539 static char *startfile_spec
= STARTFILE_SPEC
;
540 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
541 static char *multilib_select
= MULTILIB_SELECT
;
543 /* This defines which switch letters take arguments. */
545 #ifndef SWITCH_TAKES_ARG
546 #define SWITCH_TAKES_ARG(CHAR) \
547 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
548 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
549 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
550 || (CHAR) == 'L' || (CHAR) == 'A')
553 /* This defines which multi-letter switches take arguments. */
555 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
556 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
557 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
558 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
559 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
560 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
561 || !strcmp (STR, "isystem"))
563 #ifndef WORD_SWITCH_TAKES_ARG
564 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
567 /* Record the mapping from file suffixes for compilation specs. */
571 char *suffix
; /* Use this compiler for input files
572 whose names end in this suffix. */
574 char *spec
[4]; /* To use this compiler, concatenate these
575 specs and pass to do_spec. */
578 /* Pointer to a vector of `struct compiler' that gives the spec for
579 compiling a file, based on its suffix.
580 A file that does not end in any of these suffixes will be passed
581 unchanged to the loader and nothing else will be done to it.
583 An entry containing two 0s is used to terminate the vector.
585 If multiple entries match a file, the last matching one is used. */
587 static struct compiler
*compilers
;
589 /* Number of entries in `compilers', not counting the null terminator. */
591 static int n_compilers
;
593 /* The default list of file name suffixes and their compilation specs. */
595 static struct compiler default_compilers
[] =
597 {".F", "@f77-cpp-output"},
599 /* For f77 we want -traditional to avoid errors with, for
600 instance, mismatched '. Also, we avoid unpleasant surprises
601 with substitution of names not prefixed by `_ by' using %P
602 rather than %p (although this isn't consistent with SGI and
603 Sun f77, at least) so you test `__unix' rather than `unix'.
604 -D_LANGUAGE_FORTRAN is used by some compilers like SGI and
605 might as well be in there. */
606 "cpp -lang-c -P %{nostdinc*} %{C} %{v} %{A*} %{I*} %I\
607 %{C:%{!E:%eGNU C does not support -C without using -E}}\
608 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
609 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
610 %{!undef:%P} -D_LANGUAGE_FORTRAN %{trigraphs} \
611 %c %{O*:-D__OPTIMIZE__} -traditional %{ftraditional:-traditional}\
612 %{traditional-cpp:-traditional}\
613 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
614 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
615 "f771 %{!pipe:%g.i} \
616 %{!Q:-quiet} -dumpbase %b.F %{d*} %{m*} %{a}\
617 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
618 %{v:-version -fversion} %{f*}\
619 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
620 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
622 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 %{!pipe:%g.s} %A\n }"},
627 %{!Q:-quiet} -dumpbase %b.f %{d*} %{m*} %{a}\
628 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
629 %{v:-version -fversion} %{f*}\
630 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
631 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
633 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
634 %{!pipe:%g.s} %A\n }"},
637 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
638 %{C:%{!E:%eGNU C does not support -C without using -E}}\
639 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
640 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
641 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
642 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
643 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
644 %{traditional-cpp:-traditional}\
645 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
646 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
647 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
648 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
649 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
650 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
652 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
653 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
655 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
656 %{!pipe:%g.s} %A\n }}}}"},
658 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
659 %{C:%{!E:%eGNU C does not support -C without using -E}}\
660 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
661 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
662 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
663 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
664 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
665 %{traditional-cpp:-traditional}\
666 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
668 %{!E:%e-E required when input is from standard input}"},
669 {".m", "@objective-c"},
671 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
672 %{C:%{!E:%eGNU C does not support -C without using -E}}\
673 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
674 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
675 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
676 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
677 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
678 %{traditional-cpp:-traditional}\
679 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
680 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
681 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
682 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
683 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
684 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
685 -lang-objc %{gen-decls} \
687 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
688 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
690 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
691 %{!pipe:%g.s} %A\n }}}}"},
694 "%{!E:%eCompilation of header file requested} \
695 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
696 %{C:%{!E:%eGNU C does not support -C without using -E}}\
697 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
698 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
699 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
700 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
701 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
702 %{traditional-cpp:-traditional}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
708 "cpp -lang-chill %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
709 %{C:%{!E:%eGNU CHILL does not support -C without using -E}}\
710 -undef -D__GNUCHILL__=%v1 -D__GNUC_MINOR__=%v2\
711 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
712 %{traditional-cpp:-traditional} %{!undef:%{!ansi:%p} %P} %{trigraphs}\
713 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
714 %i %{!E:%g.i}%{E:%W{o*}} \n",
715 "%{!E:cc1chill %g.i %1 \
716 %{!Q:-quiet} -dumpbase %b.ch %{d*} %{m*} %{a}\
717 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{itu} \
718 %{v:-version} %{pg:-p} %{p} %{f*} %{I*} \
720 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
721 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
723 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
724 %{!pipe:%g.s} %A\n }}"},
731 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
732 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
733 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
734 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
735 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
736 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
737 %{traditional-cpp:-traditional} %{trigraphs}\
738 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
739 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
740 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
741 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
742 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
743 %{traditional} %{v:-version} %{pg:-p} %{p}\
744 %{f*} %{+e*} %{aux-info*}\
745 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
746 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
748 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
749 %{!pipe:%g.s} %A\n }}}}"},
750 {".i", "@cpp-output"},
752 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
753 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
754 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
756 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
757 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
759 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
760 %{!pipe:%g.s} %A\n }}}}"},
761 {".ii", "@c++-cpp-output"},
763 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
764 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
765 %{traditional} %{v:-version} %{pg:-p} %{p}\
766 %{f*} %{+e*} %{aux-info*}\
767 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
768 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
770 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
771 %{!pipe:%g.s} %A\n }}}}"},
772 {".s", "@assembler"},
774 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
775 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
777 {".S", "@assembler-with-cpp"},
778 {"@assembler-with-cpp",
779 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
780 %{C:%{!E:%eGNU C does not support -C without using -E}}\
781 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
782 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
783 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
784 %{traditional-cpp:-traditional}\
785 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
786 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
787 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
788 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
789 %{!pipe:%g.s} %A\n }}}}"},
793 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
794 -dumpbase %{.adb:%b.adb}%{.ads:%b.ads}\
795 %{g*} %{O*} %{p} %{pg:-p} %{f*}\
797 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
798 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
799 %{!S:%{!gnatc:%{!gnats:as %a %Y\
800 %{c:%W{o*}%{!o*:-o %w%b.%O}}\
801 %{!c:-o %d%w%u.%O} %{!pipe:%g.s} %A\n}}}}}} "},
802 /* Mark end of table */
806 /* Number of elements in default_compilers, not counting the terminator. */
808 static int n_default_compilers
809 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
811 /* Here is the spec for running the linker, after compiling all files. */
813 /* -u* was put back because both BSD and SysV seem to support it. */
814 /* %{static:} simply prevents an error message if the target machine
815 doesn't handle -static. */
816 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
817 scripts which exist in user specified directories, or in standard
819 #ifdef LINK_LIBGCC_SPECIAL
820 /* Don't generate -L options. */
821 static char *link_command_spec
= "\
823 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
824 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
825 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
826 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
829 static char *link_command_spec
= "\
831 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
832 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
833 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
834 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
837 /* A vector of options to give to the linker.
838 These options are accumulated by %x,
839 and substituted into the linker command with %X. */
840 static int n_linker_options
;
841 static char **linker_options
;
843 /* A vector of options to give to the assembler.
844 These options are accumulated by -Wa,
845 and substituted into the assembler command with %Y. */
846 static int n_assembler_options
;
847 static char **assembler_options
;
849 /* A vector of options to give to the preprocessor.
850 These options are accumulated by -Wp,
851 and substituted into the preprocessor command with %Z. */
852 static int n_preprocessor_options
;
853 static char **preprocessor_options
;
855 /* Define how to map long options into short ones. */
857 /* This structure describes one mapping. */
860 /* The long option's name. */
862 /* The equivalent short option. */
864 /* Argument info. A string of flag chars; NULL equals no options.
865 a => argument required.
866 o => argument optional.
867 j => join argument to equivalent, making one word.
868 * => require other text after NAME as an argument. */
872 /* This is the table of mappings. Mappings are tried sequentially
873 for each option encountered; the first one that matches, wins. */
875 struct option_map option_map
[] =
877 {"--all-warnings", "-Wall", 0},
878 {"--ansi", "-ansi", 0},
879 {"--assemble", "-S", 0},
880 {"--assert", "-A", "a"},
881 {"--comments", "-C", 0},
882 {"--compile", "-c", 0},
883 {"--debug", "-g", "oj"},
884 {"--define-macro", "-D", "a"},
885 {"--dependencies", "-M", 0},
886 {"--dump", "-d", "a"},
887 {"--dumpbase", "-dumpbase", "a"},
888 {"--entry", "-e", 0},
889 {"--extra-warnings", "-W", 0},
890 {"--for-assembler", "-Wa", "a"},
891 {"--for-linker", "-Xlinker", "a"},
892 {"--force-link", "-u", "a"},
893 {"--imacros", "-imacros", "a"},
894 {"--include", "-include", "a"},
895 {"--include-barrier", "-I-", 0},
896 {"--include-directory", "-I", "a"},
897 {"--include-directory-after", "-idirafter", "a"},
898 {"--include-prefix", "-iprefix", "a"},
899 {"--include-with-prefix", "-iwithprefix", "a"},
900 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
901 {"--include-with-prefix-after", "-iwithprefix", "a"},
902 {"--language", "-x", "a"},
903 {"--library-directory", "-L", "a"},
904 {"--machine", "-m", "aj"},
905 {"--machine-", "-m", "*j"},
906 {"--no-line-commands", "-P", 0},
907 {"--no-precompiled-includes", "-noprecomp", 0},
908 {"--no-standard-includes", "-nostdinc", 0},
909 {"--no-standard-libraries", "-nostdlib", 0},
910 {"--no-warnings", "-w", 0},
911 {"--optimize", "-O", "oj"},
912 {"--output", "-o", "a"},
913 {"--pedantic", "-pedantic", 0},
914 {"--pedantic-errors", "-pedantic-errors", 0},
915 {"--pipe", "-pipe", 0},
916 {"--prefix", "-B", "a"},
917 {"--preprocess", "-E", 0},
918 {"--print-search-dirs", "-print-search-dirs", 0},
919 {"--print-file-name", "-print-file-name=", "aj"},
920 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
921 {"--print-missing-file-dependencies", "-MG", 0},
922 {"--print-multi-lib", "-print-multi-lib", 0},
923 {"--print-multi-directory", "-print-multi-directory", 0},
924 {"--print-prog-name", "-print-prog-name=", "aj"},
925 {"--profile", "-p", 0},
926 {"--profile-blocks", "-a", 0},
927 {"--quiet", "-q", 0},
928 {"--save-temps", "-save-temps", 0},
929 {"--shared", "-shared", 0},
930 {"--silent", "-q", 0},
931 {"--static", "-static", 0},
932 {"--symbolic", "-symbolic", 0},
933 {"--target", "-b", "a"},
934 {"--trace-includes", "-H", 0},
935 {"--traditional", "-traditional", 0},
936 {"--traditional-cpp", "-traditional-cpp", 0},
937 {"--trigraphs", "-trigraphs", 0},
938 {"--undefine-macro", "-U", "a"},
939 {"--use-version", "-V", "a"},
940 {"--user-dependencies", "-MM", 0},
941 {"--verbose", "-v", 0},
942 {"--version", "-dumpversion", 0},
943 {"--warn-", "-W", "*j"},
944 {"--write-dependencies", "-MD", 0},
945 {"--write-user-dependencies", "-MMD", 0},
949 /* Translate the options described by *ARGCP and *ARGVP.
950 Make a new vector and store it back in *ARGVP,
951 and store its length in *ARGVC. */
954 translate_options (argcp
, argvp
)
960 char **argv
= *argvp
;
961 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
965 newv
[newindex
++] = argv
[i
++];
969 /* Translate -- options. */
970 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
972 /* Find a mapping that applies to this option. */
973 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
975 int optlen
= strlen (option_map
[j
].name
);
976 int arglen
= strlen (argv
[i
]);
977 int complen
= arglen
> optlen
? optlen
: arglen
;
978 char *arginfo
= option_map
[j
].arg_info
;
983 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
990 k
< sizeof (option_map
) / sizeof (option_map
[0]);
992 if (strlen (option_map
[k
].name
) >= arglen
993 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
995 error ("Ambiguous abbreviation %s", argv
[i
]);
999 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
1003 if (arglen
> optlen
)
1005 /* If the option has an argument, accept that. */
1006 if (argv
[i
][optlen
] == '=')
1007 arg
= argv
[i
] + optlen
+ 1;
1009 /* If this mapping requires extra text at end of name,
1010 accept that as "argument". */
1011 else if (index (arginfo
, '*') != 0)
1012 arg
= argv
[i
] + optlen
;
1014 /* Otherwise, extra text at end means mismatch.
1015 Try other mappings. */
1020 else if (index (arginfo
, '*') != 0)
1022 error ("Incomplete `%s' option", option_map
[j
].name
);
1026 /* Handle arguments. */
1027 if (index (arginfo
, 'a') != 0)
1033 error ("Missing argument to `%s' option",
1034 option_map
[j
].name
);
1041 else if (index (arginfo
, '*') != 0)
1043 else if (index (arginfo
, 'o') == 0)
1046 error ("Extraneous argument to `%s' option",
1047 option_map
[j
].name
);
1051 /* Store the translation as one argv elt or as two. */
1052 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1053 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
);
1056 newv
[newindex
++] = option_map
[j
].equivalent
;
1057 newv
[newindex
++] = arg
;
1060 newv
[newindex
++] = option_map
[j
].equivalent
;
1068 /* Handle old-fashioned options--just copy them through,
1069 with their arguments. */
1070 else if (argv
[i
][0] == '-')
1072 char *p
= argv
[i
] + 1;
1076 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1077 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1078 else if (WORD_SWITCH_TAKES_ARG (p
))
1079 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1080 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1083 else if (! strcmp (p
, "Xlinker"))
1086 /* Watch out for an option at the end of the command line that
1087 is missing arguments, and avoid skipping past the end of the
1089 if (nskip
+ i
> argc
)
1094 newv
[newindex
++] = argv
[i
++];
1099 /* Ordinary operands, or +e options. */
1100 newv
[newindex
++] = argv
[i
++];
1114 #ifdef HAVE_STRERROR
1119 static char buffer
[30];
1123 if (e
> 0 && e
< sys_nerr
)
1124 return sys_errlist
[e
];
1126 sprintf (buffer
, "Unknown error %d", e
);
1131 /* Read compilation specs from a file named FILENAME,
1132 replacing the default ones.
1134 A suffix which starts with `*' is a definition for
1135 one of the machine-specific sub-specs. The "suffix" should be
1136 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1137 The corresponding spec is stored in asm_spec, etc.,
1138 rather than in the `compilers' vector.
1140 Anything invalid in the file is a fatal error. */
1143 read_specs (filename
)
1148 struct stat statbuf
;
1153 fprintf (stderr
, "Reading specs from %s\n", filename
);
1155 /* Open and stat the file. */
1156 desc
= open (filename
, O_RDONLY
, 0);
1158 pfatal_with_name (filename
);
1159 if (stat (filename
, &statbuf
) < 0)
1160 pfatal_with_name (filename
);
1162 /* Read contents of file into BUFFER. */
1163 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1164 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1166 pfatal_with_name (filename
);
1167 buffer
[readlen
] = 0;
1170 /* Scan BUFFER for specs, putting them in the vector. */
1176 char *in
, *out
, *p1
, *p2
;
1178 /* Advance P in BUFFER to the next nonblank nocomment line. */
1179 p
= skip_whitespace (p
);
1183 /* Find the colon that should end the suffix. */
1185 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1186 /* The colon shouldn't be missing. */
1188 fatal ("specs file malformed after %d characters", p1
- buffer
);
1189 /* Skip back over trailing whitespace. */
1191 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1192 /* Copy the suffix to a string. */
1193 suffix
= save_string (p
, p2
- p
);
1194 /* Find the next line. */
1195 p
= skip_whitespace (p1
+ 1);
1197 fatal ("specs file malformed after %d characters", p
- buffer
);
1199 /* Find next blank line. */
1200 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1201 /* Specs end at the blank line and do not include the newline. */
1202 spec
= save_string (p
, p1
- p
);
1205 /* Delete backslash-newline sequences from the spec. */
1210 if (in
[0] == '\\' && in
[1] == '\n')
1212 else if (in
[0] == '#')
1214 while (*in
&& *in
!= '\n') in
++;
1221 if (suffix
[0] == '*')
1223 if (! strcmp (suffix
, "*link_command"))
1224 link_command_spec
= spec
;
1226 set_spec (suffix
+ 1, spec
);
1230 /* Add this pair to the vector. */
1232 = ((struct compiler
*)
1233 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1234 compilers
[n_compilers
].suffix
= suffix
;
1235 bzero ((char *) compilers
[n_compilers
].spec
,
1236 sizeof compilers
[n_compilers
].spec
);
1237 compilers
[n_compilers
].spec
[0] = spec
;
1239 bzero ((char *) &compilers
[n_compilers
],
1240 sizeof compilers
[n_compilers
]);
1244 link_command_spec
= spec
;
1247 if (link_command_spec
== 0)
1248 fatal ("spec file has no spec for linking");
1257 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1258 be considered whitespace. */
1259 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1261 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1265 while (*p
!= '\n') p
++;
1275 /* Structure to keep track of the specs that have been defined so far. These
1276 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1280 char *name
; /* Name of the spec. */
1281 char *spec
; /* The spec itself. */
1282 struct spec_list
*next
; /* Next spec in linked list. */
1285 /* List of specs that have been defined so far. */
1287 static struct spec_list
*specs
= (struct spec_list
*) 0;
1289 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1290 removed; If the spec starts with a + then SPEC is added to the end of the
1294 set_spec (name
, spec
)
1298 struct spec_list
*sl
;
1301 /* See if the spec already exists */
1302 for (sl
= specs
; sl
; sl
= sl
->next
)
1303 if (strcmp (sl
->name
, name
) == 0)
1308 /* Not found - make it */
1309 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1310 sl
->name
= save_string (name
, strlen (name
));
1311 sl
->spec
= save_string ("", 0);
1316 old_spec
= sl
->spec
;
1317 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1318 sl
->spec
= concat (old_spec
, spec
+ 1);
1320 sl
->spec
= save_string (spec
, strlen (spec
));
1322 if (! strcmp (name
, "asm"))
1323 asm_spec
= sl
->spec
;
1324 else if (! strcmp (name
, "asm_final"))
1325 asm_final_spec
= sl
->spec
;
1326 else if (! strcmp (name
, "cc1"))
1327 cc1_spec
= sl
->spec
;
1328 else if (! strcmp (name
, "cc1plus"))
1329 cc1plus_spec
= sl
->spec
;
1330 else if (! strcmp (name
, "cpp"))
1331 cpp_spec
= sl
->spec
;
1332 else if (! strcmp (name
, "endfile"))
1333 endfile_spec
= sl
->spec
;
1334 else if (! strcmp (name
, "lib"))
1335 lib_spec
= sl
->spec
;
1336 else if (! strcmp (name
, "libgcc"))
1337 libgcc_spec
= sl
->spec
;
1338 else if (! strcmp (name
, "link"))
1339 link_spec
= sl
->spec
;
1340 else if (! strcmp (name
, "predefines"))
1341 cpp_predefines
= sl
->spec
;
1342 else if (! strcmp (name
, "signed_char"))
1343 signed_char_spec
= sl
->spec
;
1344 else if (! strcmp (name
, "startfile"))
1345 startfile_spec
= sl
->spec
;
1346 else if (! strcmp (name
, "switches_need_spaces"))
1347 switches_need_spaces
= sl
->spec
;
1348 else if (! strcmp (name
, "cross_compile"))
1349 cross_compile
= atoi (sl
->spec
);
1350 else if (! strcmp (name
, "multilib"))
1351 multilib_select
= sl
->spec
;
1352 /* Free the old spec */
1357 /* Accumulate a command (program name and args), and run it. */
1359 /* Vector of pointers to arguments in the current line of specifications. */
1361 static char **argbuf
;
1363 /* Number of elements allocated in argbuf. */
1365 static int argbuf_length
;
1367 /* Number of elements in argbuf currently in use (containing args). */
1369 static int argbuf_index
;
1371 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1372 temp file. Used only if MKTEMP_EACH_FILE. */
1374 static struct temp_name
{
1375 char *suffix
; /* suffix associated with the code. */
1376 int length
; /* strlen (suffix). */
1377 int unique
; /* Indicates whether %g or %u/%U was used. */
1378 char *filename
; /* associated filename. */
1379 int filename_length
; /* strlen (filename). */
1380 struct temp_name
*next
;
1383 /* Number of commands executed so far. */
1385 static int execution_count
;
1387 /* Number of commands that exited with a signal. */
1389 static int signal_count
;
1391 /* Name with which this program was invoked. */
1393 static char *programname
;
1395 /* Structures to keep track of prefixes to try when looking for files. */
1399 char *prefix
; /* String to prepend to the path. */
1400 struct prefix_list
*next
; /* Next in linked list. */
1401 int require_machine_suffix
; /* Don't use without machine_suffix. */
1402 /* 2 means try both machine_suffix and just_machine_suffix. */
1403 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1408 struct prefix_list
*plist
; /* List of prefixes to try */
1409 int max_len
; /* Max length of a prefix in PLIST */
1410 char *name
; /* Name of this list (used in config stuff) */
1413 /* List of prefixes to try when looking for executables. */
1415 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1417 /* List of prefixes to try when looking for startup (crt0) files. */
1419 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1421 /* List of prefixes to try when looking for include files. */
1423 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1425 /* Suffix to attach to directories searched for commands.
1426 This looks like `MACHINE/VERSION/'. */
1428 static char *machine_suffix
= 0;
1430 /* Suffix to attach to directories searched for commands.
1431 This is just `MACHINE/'. */
1433 static char *just_machine_suffix
= 0;
1435 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1437 static char *gcc_exec_prefix
;
1439 /* Default prefixes to attach to command names. */
1441 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1442 #undef MD_EXEC_PREFIX
1443 #undef MD_STARTFILE_PREFIX
1444 #undef MD_STARTFILE_PREFIX_1
1447 #ifndef STANDARD_EXEC_PREFIX
1448 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1449 #endif /* !defined STANDARD_EXEC_PREFIX */
1451 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1452 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1453 #ifdef MD_EXEC_PREFIX
1454 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1457 #ifndef STANDARD_STARTFILE_PREFIX
1458 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1459 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1461 #ifdef MD_STARTFILE_PREFIX
1462 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1464 #ifdef MD_STARTFILE_PREFIX_1
1465 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1467 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1468 static char *standard_startfile_prefix_1
= "/lib/";
1469 static char *standard_startfile_prefix_2
= "/usr/lib/";
1471 #ifndef TOOLDIR_BASE_PREFIX
1472 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1474 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1475 static char *tooldir_prefix
;
1477 /* Subdirectory to use for locating libraries. Set by
1478 set_multilib_dir based on the compilation options. */
1480 static char *multilib_dir
;
1482 /* Clear out the vector of arguments (after a command is executed). */
1490 /* Add one argument to the vector at the end.
1491 This is done when a space is seen or at the end of the line.
1492 If DELETE_ALWAYS is nonzero, the arg is a filename
1493 and the file should be deleted eventually.
1494 If DELETE_FAILURE is nonzero, the arg is a filename
1495 and the file should be deleted if this compilation fails. */
1498 store_arg (arg
, delete_always
, delete_failure
)
1500 int delete_always
, delete_failure
;
1502 if (argbuf_index
+ 1 == argbuf_length
)
1504 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1507 argbuf
[argbuf_index
++] = arg
;
1508 argbuf
[argbuf_index
] = 0;
1510 if (delete_always
|| delete_failure
)
1511 record_temp_file (arg
, delete_always
, delete_failure
);
1514 /* Record the names of temporary files we tell compilers to write,
1515 and delete them at the end of the run. */
1517 /* This is the common prefix we use to make temp file names.
1518 It is chosen once for each run of this program.
1519 It is substituted into a spec by %g.
1520 Thus, all temp file names contain this prefix.
1521 In practice, all temp file names start with this prefix.
1523 This prefix comes from the envvar TMPDIR if it is defined;
1524 otherwise, from the P_tmpdir macro if that is defined;
1525 otherwise, in /usr/tmp or /tmp. */
1527 static char *temp_filename
;
1529 /* Length of the prefix. */
1531 static int temp_filename_length
;
1533 /* Define the list of temporary files to delete. */
1538 struct temp_file
*next
;
1541 /* Queue of files to delete on success or failure of compilation. */
1542 static struct temp_file
*always_delete_queue
;
1543 /* Queue of files to delete on failure of compilation. */
1544 static struct temp_file
*failure_delete_queue
;
1546 /* Record FILENAME as a file to be deleted automatically.
1547 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1548 otherwise delete it in any case.
1549 FAIL_DELETE nonzero means delete it if a compilation step fails;
1550 otherwise delete it in any case. */
1553 record_temp_file (filename
, always_delete
, fail_delete
)
1558 register char *name
;
1559 name
= xmalloc (strlen (filename
) + 1);
1560 strcpy (name
, filename
);
1564 register struct temp_file
*temp
;
1565 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1566 if (! strcmp (name
, temp
->name
))
1568 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1569 temp
->next
= always_delete_queue
;
1571 always_delete_queue
= temp
;
1577 register struct temp_file
*temp
;
1578 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1579 if (! strcmp (name
, temp
->name
))
1581 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1582 temp
->next
= failure_delete_queue
;
1584 failure_delete_queue
= temp
;
1589 /* Delete all the temporary files whose names we previously recorded. */
1592 delete_if_ordinary (name
)
1599 printf ("Delete %s? (y or n) ", name
);
1603 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1604 if (i
== 'y' || i
== 'Y')
1606 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1607 if (unlink (name
) < 0)
1609 perror_with_name (name
);
1613 delete_temp_files ()
1615 register struct temp_file
*temp
;
1617 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1618 delete_if_ordinary (temp
->name
);
1619 always_delete_queue
= 0;
1622 /* Delete all the files to be deleted on error. */
1625 delete_failure_queue ()
1627 register struct temp_file
*temp
;
1629 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1630 delete_if_ordinary (temp
->name
);
1634 clear_failure_queue ()
1636 failure_delete_queue
= 0;
1639 /* Compute a string to use as the base of all temporary file names.
1640 It is substituted for %g. */
1643 choose_temp_base_try (try, base
)
1650 else if (try == (char *)0)
1652 else if (access (try, R_OK
| W_OK
) != 0)
1665 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1666 base
= choose_temp_base_try (getenv ("TMP"), base
);
1667 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1670 base
= choose_temp_base_try (P_tmpdir
, base
);
1673 base
= choose_temp_base_try (concat4 (dir_separator_str
, "usr",
1674 dir_separator_str
, "tmp"),
1676 base
= choose_temp_base_try (concat (dir_separator_str
, "tmp"), base
);
1678 /* If all else fails, use the current directory! */
1679 if (base
== (char *)0) base
= concat(".", dir_separator_str
);
1681 len
= strlen (base
);
1682 temp_filename
= xmalloc (len
+ strlen (concat (dir_separator_str
,
1684 strcpy (temp_filename
, base
);
1685 if (len
> 0 && temp_filename
[len
-1] != '/'
1686 && temp_filename
[len
-1] != DIR_SEPARATOR
)
1687 temp_filename
[len
++] = DIR_SEPARATOR
;
1688 strcpy (temp_filename
+ len
, "ccXXXXXX");
1690 mktemp (temp_filename
);
1691 temp_filename_length
= strlen (temp_filename
);
1692 if (temp_filename_length
== 0)
1697 /* Routine to add variables to the environment. We do this to pass
1698 the pathname of the gcc driver, and the directories search to the
1699 collect2 program, which is being run as ld. This way, we can be
1700 sure of executing the right compiler when collect2 wants to build
1701 constructors and destructors. Since the environment variables we
1702 use come from an obstack, we don't have to worry about allocating
1711 #ifndef VMS /* nor about VMS */
1713 extern char **environ
;
1714 char **old_environ
= environ
;
1718 int str_len
= strlen (str
);
1722 while ((ch
= *p
++) != '\0' && ch
!= '=')
1728 /* Search for replacing an existing environment variable, and
1729 count the number of total environment variables. */
1730 for (envp
= old_environ
; *envp
; envp
++)
1733 if (!strncmp (str
, *envp
, name_len
))
1740 /* Add a new environment variable */
1741 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1743 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1744 sizeof (char *) * (num_envs
+1));
1749 #endif /* HAVE_PUTENV */
1752 /* Build a list of search directories from PATHS.
1753 PREFIX is a string to prepend to the list.
1754 If CHECK_DIR_P is non-zero we ensure the directory exists.
1755 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1756 It is also used by the --print-search-dirs flag. */
1759 build_search_list (paths
, prefix
, check_dir_p
)
1760 struct path_prefix
*paths
;
1764 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1766 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1767 int first_time
= TRUE
;
1768 struct prefix_list
*pprefix
;
1770 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1772 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1774 int len
= strlen (pprefix
->prefix
);
1778 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1781 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1784 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1785 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1788 if (just_machine_suffix
1789 && pprefix
->require_machine_suffix
== 2
1791 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1794 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1797 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1798 obstack_grow (&collect_obstack
, just_machine_suffix
,
1802 if (!pprefix
->require_machine_suffix
)
1805 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1808 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1811 obstack_1grow (&collect_obstack
, '\0');
1812 return obstack_finish (&collect_obstack
);
1815 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1818 putenv_from_prefixes (paths
, env_var
)
1819 struct path_prefix
*paths
;
1822 putenv (build_search_list (paths
, env_var
, 1));
1825 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1826 access to check permissions.
1827 Return 0 if not found, otherwise return its name, allocated with malloc. */
1830 find_a_file (pprefix
, name
, mode
)
1831 struct path_prefix
*pprefix
;
1836 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1837 struct prefix_list
*pl
;
1838 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1841 len
+= strlen (machine_suffix
);
1843 temp
= xmalloc (len
);
1845 /* Determine the filename to execute (special case for absolute paths). */
1847 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1849 if (access (name
, mode
))
1851 strcpy (temp
, name
);
1856 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1860 /* Some systems have a suffix for executable files.
1861 So try appending that first. */
1862 if (file_suffix
[0] != 0)
1864 strcpy (temp
, pl
->prefix
);
1865 strcat (temp
, machine_suffix
);
1866 strcat (temp
, name
);
1867 strcat (temp
, file_suffix
);
1868 if (access (temp
, mode
) == 0)
1870 if (pl
->used_flag_ptr
!= 0)
1871 *pl
->used_flag_ptr
= 1;
1876 /* Now try just the name. */
1877 strcpy (temp
, pl
->prefix
);
1878 strcat (temp
, machine_suffix
);
1879 strcat (temp
, name
);
1880 if (access (temp
, mode
) == 0)
1882 if (pl
->used_flag_ptr
!= 0)
1883 *pl
->used_flag_ptr
= 1;
1888 /* Certain prefixes are tried with just the machine type,
1889 not the version. This is used for finding as, ld, etc. */
1890 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1892 /* Some systems have a suffix for executable files.
1893 So try appending that first. */
1894 if (file_suffix
[0] != 0)
1896 strcpy (temp
, pl
->prefix
);
1897 strcat (temp
, just_machine_suffix
);
1898 strcat (temp
, name
);
1899 strcat (temp
, file_suffix
);
1900 if (access (temp
, mode
) == 0)
1902 if (pl
->used_flag_ptr
!= 0)
1903 *pl
->used_flag_ptr
= 1;
1908 strcpy (temp
, pl
->prefix
);
1909 strcat (temp
, just_machine_suffix
);
1910 strcat (temp
, name
);
1911 if (access (temp
, mode
) == 0)
1913 if (pl
->used_flag_ptr
!= 0)
1914 *pl
->used_flag_ptr
= 1;
1919 /* Certain prefixes can't be used without the machine suffix
1920 when the machine or version is explicitly specified. */
1921 if (!pl
->require_machine_suffix
)
1923 /* Some systems have a suffix for executable files.
1924 So try appending that first. */
1925 if (file_suffix
[0] != 0)
1927 strcpy (temp
, pl
->prefix
);
1928 strcat (temp
, name
);
1929 strcat (temp
, file_suffix
);
1930 if (access (temp
, mode
) == 0)
1932 if (pl
->used_flag_ptr
!= 0)
1933 *pl
->used_flag_ptr
= 1;
1938 strcpy (temp
, pl
->prefix
);
1939 strcat (temp
, name
);
1940 if (access (temp
, mode
) == 0)
1942 if (pl
->used_flag_ptr
!= 0)
1943 *pl
->used_flag_ptr
= 1;
1953 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1954 at the start of the list, otherwise it goes at the end.
1956 If WARN is nonzero, we will warn if no file is found
1957 through this prefix. WARN should point to an int
1958 which will be set to 1 if this entry is used.
1960 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1961 the complete value of machine_suffix.
1962 2 means try both machine_suffix and just_machine_suffix. */
1965 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1966 struct path_prefix
*pprefix
;
1969 int require_machine_suffix
;
1972 struct prefix_list
*pl
, **prev
;
1975 if (!first
&& pprefix
->plist
)
1977 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1982 prev
= &pprefix
->plist
;
1984 /* Keep track of the longest prefix */
1986 len
= strlen (prefix
);
1987 if (len
> pprefix
->max_len
)
1988 pprefix
->max_len
= len
;
1990 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1991 pl
->prefix
= save_string (prefix
, len
);
1992 pl
->require_machine_suffix
= require_machine_suffix
;
1993 pl
->used_flag_ptr
= warn
;
2000 pl
->next
= (struct prefix_list
*) 0;
2004 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2007 unused_prefix_warnings (pprefix
)
2008 struct path_prefix
*pprefix
;
2010 struct prefix_list
*pl
= pprefix
->plist
;
2014 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2016 error ("file path prefix `%s' never used",
2018 /* Prevent duplicate warnings. */
2019 *pl
->used_flag_ptr
= 1;
2025 /* Get rid of all prefixes built up so far in *PLISTP. */
2028 free_path_prefix (pprefix
)
2029 struct path_prefix
*pprefix
;
2031 struct prefix_list
*pl
= pprefix
->plist
;
2032 struct prefix_list
*temp
;
2038 free (temp
->prefix
);
2039 free ((char *) temp
);
2041 pprefix
->plist
= (struct prefix_list
*) 0;
2044 /* stdin file number. */
2045 #define STDIN_FILE_NO 0
2047 /* stdout file number. */
2048 #define STDOUT_FILE_NO 1
2050 /* value of `pipe': port index for reading. */
2053 /* value of `pipe': port index for writing. */
2054 #define WRITE_PORT 1
2056 /* Pipe waiting from last process, to be used as input for the next one.
2057 Value is STDIN_FILE_NO if no pipe is waiting
2058 (i.e. the next command is the first of a group). */
2060 static int last_pipe_input
;
2062 /* Fork one piped subcommand. FUNC is the system call to use
2063 (either execv or execvp). ARGV is the arg vector to use.
2064 NOT_LAST is nonzero if this is not the last subcommand
2065 (i.e. its output should be piped to the next one.) */
2069 #include <process.h>
2071 pexecute (search_flag
, program
, argv
, not_last
)
2078 int i
= (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
2082 int i
, el
= search_flag
? 0 : 4;
2084 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
2085 rf
= scmd
+ strlen(program
) + 2 + el
;
2086 sprintf (scmd
, "%s%s @%s.gp", program
,
2087 (search_flag
? "" : ".exe"), temp_filename
);
2088 argfile
= fopen (rf
, "w");
2090 pfatal_with_name (rf
);
2092 for (i
=1; argv
[i
]; i
++)
2095 for (cp
= argv
[i
]; *cp
; cp
++)
2097 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
2098 fputc ('\\', argfile
);
2099 fputc (*cp
, argfile
);
2101 fputc ('\n', argfile
);
2112 perror_exec (program
);
2113 return MIN_FATAL_STATUS
<< 8;
2120 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2123 pexecute (search_flag
, program
, argv
, not_last
)
2129 int (*func
)() = (search_flag
? execv
: execvp
);
2132 int input_desc
= last_pipe_input
;
2133 int output_desc
= STDOUT_FILE_NO
;
2134 int retries
, sleep_interval
;
2136 /* If this isn't the last process, make a pipe for its output,
2137 and record it as waiting to be the input to the next process. */
2141 if (pipe (pdes
) < 0)
2142 pfatal_with_name ("pipe");
2143 output_desc
= pdes
[WRITE_PORT
];
2144 last_pipe_input
= pdes
[READ_PORT
];
2147 last_pipe_input
= STDIN_FILE_NO
;
2149 /* Fork a subprocess; wait and retry if it fails. */
2151 for (retries
= 0; retries
< 4; retries
++)
2156 sleep (sleep_interval
);
2157 sleep_interval
*= 2;
2164 pfatal_with_name ("fork");
2166 pfatal_with_name ("vfork");
2172 /* Move the input and output pipes into place, if nec. */
2173 if (input_desc
!= STDIN_FILE_NO
)
2175 close (STDIN_FILE_NO
);
2179 if (output_desc
!= STDOUT_FILE_NO
)
2181 close (STDOUT_FILE_NO
);
2183 close (output_desc
);
2186 /* Close the parent's descs that aren't wanted here. */
2187 if (last_pipe_input
!= STDIN_FILE_NO
)
2188 close (last_pipe_input
);
2190 /* Exec the program. */
2191 (*func
) (program
, argv
);
2192 perror_exec (program
);
2198 /* In the parent, after forking.
2199 Close the descriptors that we made for this child. */
2200 if (input_desc
!= STDIN_FILE_NO
)
2202 if (output_desc
!= STDOUT_FILE_NO
)
2203 close (output_desc
);
2205 /* Return child's process number. */
2210 #endif /* not __MSDOS__ and not OS2 and not WINNT */
2212 #if defined(OS2) || defined(WINNT)
2216 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2217 to remove the outermost set of double quotes from all arguments. */
2225 for (i
= 1; argvec
[i
] != 0; i
++)
2228 char *temp
, *newtemp
;
2231 len
= strlen (temp
);
2232 for (j
= 0; j
< len
; j
++)
2236 newtemp
= xmalloc (len
+ 2);
2237 strncpy (newtemp
, temp
, j
);
2239 strncpy (&newtemp
[j
+1], &temp
[j
], len
-j
);
2240 newtemp
[len
+1] = 0;
2251 return (const char* const*) argvec
;
2254 #define FIX_ARGV(a) fix_argv(a)
2258 #define FIX_ARGV(a) a
2263 pexecute (search_flag
, program
, argv
, not_last
)
2269 return (search_flag
? spawnv
: spawnvp
) (1, program
, FIX_ARGV (argv
));
2271 #endif /* OS2 or WINNT */
2274 /* Execute the command specified by the arguments on the current line of spec.
2275 When using pipes, this includes several piped-together commands
2276 with `|' between them.
2278 Return 0 if successful, -1 if failed. */
2284 int n_commands
; /* # of command. */
2288 char *prog
; /* program name. */
2289 char **argv
; /* vector of args. */
2290 int pid
; /* pid of process for this command. */
2293 struct command
*commands
; /* each command buffer with above info. */
2295 /* Count # of piped commands. */
2296 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2297 if (strcmp (argbuf
[i
], "|") == 0)
2300 /* Get storage for each command. */
2302 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2304 /* Split argbuf into its separate piped processes,
2305 and record info about each one.
2306 Also search for the programs that are to be run. */
2308 commands
[0].prog
= argbuf
[0]; /* first command. */
2309 commands
[0].argv
= &argbuf
[0];
2310 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2312 commands
[0].argv
[0] = string
;
2314 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2315 if (strcmp (argbuf
[i
], "|") == 0)
2316 { /* each command. */
2318 fatal ("-pipe not supported under MS-DOS");
2320 argbuf
[i
] = 0; /* termination of command args. */
2321 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2322 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2323 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2325 commands
[n_commands
].argv
[0] = string
;
2329 argbuf
[argbuf_index
] = 0;
2331 /* If -v, print what we are about to do, and maybe query. */
2335 /* Print each piped command as a separate line. */
2336 for (i
= 0; i
< n_commands
; i
++)
2340 for (j
= commands
[i
].argv
; *j
; j
++)
2341 fprintf (stderr
, " %s", *j
);
2343 /* Print a pipe symbol after all but the last command. */
2344 if (i
+ 1 != n_commands
)
2345 fprintf (stderr
, " |");
2346 fprintf (stderr
, "\n");
2350 fprintf (stderr
, "\nGo ahead? (y or n) ");
2354 while (getchar () != '\n') ;
2355 if (i
!= 'y' && i
!= 'Y')
2360 /* Run each piped subprocess. */
2362 last_pipe_input
= STDIN_FILE_NO
;
2363 for (i
= 0; i
< n_commands
; i
++)
2365 char *string
= commands
[i
].argv
[0];
2367 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2368 string
, commands
[i
].argv
,
2369 i
+ 1 < n_commands
);
2371 if (string
!= commands
[i
].prog
)
2377 /* Wait for all the subprocesses to finish.
2378 We don't care what order they finish in;
2379 we know that N_COMMANDS waits will get them all.
2380 Ignore subprocesses that we don't know about,
2381 since they can be spawned by the process that exec'ed us. */
2386 for (i
= 0; i
< n_commands
; )
2393 status
= pid
= commands
[i
].pid
;
2396 pid
= cwait (&status
, commands
[i
].pid
, WAIT_CHILD
);
2398 pid
= wait (&status
);
2404 for (j
= 0; j
< n_commands
; j
++)
2405 if (commands
[j
].pid
== pid
)
2410 if (WIFSIGNALED (status
))
2412 fatal ("Internal compiler error: program %s got fatal signal %d",
2413 commands
[j
].prog
, WTERMSIG (status
));
2417 else if (WIFEXITED (status
)
2418 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2428 /* Find all the switches given to us
2429 and make a vector describing them.
2430 The elements of the vector are strings, one per switch given.
2431 If a switch uses following arguments, then the `part1' field
2432 is the switch itself and the `args' field
2433 is a null-terminated vector containing the following arguments.
2434 The `live_cond' field is 1 if the switch is true in a conditional spec,
2435 -1 if false (overridden by a later switch), and is initialized to zero.
2436 The `valid' field is nonzero if any spec has looked at this switch;
2437 if it remains zero at the end of the run, it must be meaningless. */
2447 static struct switchstr
*switches
;
2449 static int n_switches
;
2457 /* Also a vector of input files specified. */
2459 static struct infile
*infiles
;
2461 static int n_infiles
;
2463 /* And a vector of corresponding output files is made up later. */
2465 static char **outfiles
;
2467 /* Create the vector `switches' and its contents.
2468 Store its length in `n_switches'. */
2471 process_command (argc
, argv
)
2477 char *spec_lang
= 0;
2478 int last_language_n_infiles
;
2480 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2485 /* Figure compiler version from version string. */
2487 compiler_version
= save_string (version_string
, strlen (version_string
));
2488 for (temp
= compiler_version
; *temp
; ++temp
)
2497 /* Set up the default search paths. */
2499 if (gcc_exec_prefix
)
2501 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2502 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2505 /* COMPILER_PATH and LIBRARY_PATH have values
2506 that are lists of directory names with colons. */
2508 temp
= getenv ("COMPILER_PATH");
2511 char *startp
, *endp
;
2512 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2514 startp
= endp
= temp
;
2517 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2519 strncpy (nstore
, startp
, endp
-startp
);
2521 strcpy (nstore
, concat (".", dir_separator_str
));
2522 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2524 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2525 nstore
[endp
-startp
+1] = 0;
2528 nstore
[endp
-startp
] = 0;
2529 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2532 endp
= startp
= endp
+ 1;
2539 temp
= getenv ("LIBRARY_PATH");
2540 if (temp
&& ! cross_compile
)
2542 char *startp
, *endp
;
2543 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2545 startp
= endp
= temp
;
2548 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2550 strncpy (nstore
, startp
, endp
-startp
);
2552 strcpy (nstore
, concat (".", dir_separator_str
));
2553 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2555 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2556 nstore
[endp
-startp
+1] = 0;
2559 nstore
[endp
-startp
] = 0;
2560 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2563 endp
= startp
= endp
+ 1;
2570 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2571 temp
= getenv ("LPATH");
2572 if (temp
&& ! cross_compile
)
2574 char *startp
, *endp
;
2575 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2577 startp
= endp
= temp
;
2580 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2582 strncpy (nstore
, startp
, endp
-startp
);
2584 strcpy (nstore
, concat (".", dir_separator_str
));
2585 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2587 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2588 nstore
[endp
-startp
+1] = 0;
2591 nstore
[endp
-startp
] = 0;
2592 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2595 endp
= startp
= endp
+ 1;
2602 /* Convert new-style -- options to old-style. */
2603 translate_options (&argc
, &argv
);
2605 /* Scan argv twice. Here, the first time, just count how many switches
2606 there will be in their vector, and how many input files in theirs.
2607 Here we also parse the switches that cc itself uses (e.g. -v). */
2609 for (i
= 1; i
< argc
; i
++)
2611 if (! strcmp (argv
[i
], "-dumpspecs"))
2613 printf ("*asm:\n%s\n\n", asm_spec
);
2614 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2615 printf ("*cpp:\n%s\n\n", cpp_spec
);
2616 printf ("*cc1:\n%s\n\n", cc1_spec
);
2617 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2618 printf ("*endfile:\n%s\n\n", endfile_spec
);
2619 printf ("*link:\n%s\n\n", link_spec
);
2620 printf ("*lib:\n%s\n\n", lib_spec
);
2621 printf ("*libgcc:\n%s\n\n", libgcc_spec
);
2622 printf ("*startfile:\n%s\n\n", startfile_spec
);
2623 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2624 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2625 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2626 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2627 printf ("*multilib:\n%s\n\n", multilib_select
);
2631 else if (! strcmp (argv
[i
], "-dumpversion"))
2633 printf ("%s\n", version_string
);
2636 else if (! strcmp (argv
[i
], "-dumpmachine"))
2638 printf ("%s\n", spec_machine
);
2641 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2642 print_search_dirs
= 1;
2643 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2644 print_file_name
= "libgcc.a";
2645 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2646 print_file_name
= argv
[i
] + 17;
2647 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2648 print_prog_name
= argv
[i
] + 17;
2649 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2650 print_multi_lib
= 1;
2651 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2652 print_multi_directory
= 1;
2653 else if (! strncmp (argv
[i
], "-Wa,", 4))
2656 /* Pass the rest of this option to the assembler. */
2658 n_assembler_options
++;
2659 if (!assembler_options
)
2661 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2664 = (char **) xrealloc (assembler_options
,
2665 n_assembler_options
* sizeof (char **));
2667 /* Split the argument at commas. */
2669 for (j
= 4; argv
[i
][j
]; j
++)
2670 if (argv
[i
][j
] == ',')
2672 assembler_options
[n_assembler_options
- 1]
2673 = save_string (argv
[i
] + prev
, j
- prev
);
2674 n_assembler_options
++;
2676 = (char **) xrealloc (assembler_options
,
2677 n_assembler_options
* sizeof (char **));
2680 /* Record the part after the last comma. */
2681 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2683 else if (! strncmp (argv
[i
], "-Wp,", 4))
2686 /* Pass the rest of this option to the preprocessor. */
2688 n_preprocessor_options
++;
2689 if (!preprocessor_options
)
2690 preprocessor_options
2691 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2693 preprocessor_options
2694 = (char **) xrealloc (preprocessor_options
,
2695 n_preprocessor_options
* sizeof (char **));
2697 /* Split the argument at commas. */
2699 for (j
= 4; argv
[i
][j
]; j
++)
2700 if (argv
[i
][j
] == ',')
2702 preprocessor_options
[n_preprocessor_options
- 1]
2703 = save_string (argv
[i
] + prev
, j
- prev
);
2704 n_preprocessor_options
++;
2705 preprocessor_options
2706 = (char **) xrealloc (preprocessor_options
,
2707 n_preprocessor_options
* sizeof (char **));
2710 /* Record the part after the last comma. */
2711 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2713 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2714 /* The +e options to the C++ front-end. */
2716 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2719 /* Split the argument at commas. */
2720 for (j
= 3; argv
[i
][j
]; j
++)
2721 n_infiles
+= (argv
[i
][j
] == ',');
2723 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2726 fatal ("argument to `-Xlinker' is missing");
2731 else if (strncmp (argv
[i
], "-l", 2) == 0)
2733 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2735 register char *p
= &argv
[i
][1];
2736 register int c
= *p
;
2741 if (p
[1] == 0 && i
+ 1 == argc
)
2742 fatal ("argument to `-b' is missing");
2744 spec_machine
= argv
[++i
];
2746 spec_machine
= p
+ 1;
2751 int *temp
= (int *) xmalloc (sizeof (int));
2753 if (p
[1] == 0 && i
+ 1 == argc
)
2754 fatal ("argument to `-B' is missing");
2759 add_prefix (&exec_prefixes
, value
, 1, 0, temp
);
2760 add_prefix (&startfile_prefixes
, value
, 1, 0, temp
);
2761 add_prefix (&include_prefixes
, concat (value
, "include"),
2764 /* As a kludge, if the arg is "[foo/]stageN/", just add
2765 "[foo/]include" to the include prefix. */
2767 int len
= strlen (value
);
2770 && (value
[len
- 8] == '/'
2771 || value
[len
- 8] == DIR_SEPARATOR
)))
2772 && strncmp (value
+ len
- 7, "stage", 5) == 0
2773 && isdigit (value
[len
- 2])
2774 && (value
[len
- 1] == '/'
2775 || value
[len
- 1] == DIR_SEPARATOR
))
2778 add_prefix (&include_prefixes
, "include", 1, 0, 0);
2781 char *string
= xmalloc (len
+ 1);
2782 strncpy (string
, value
, len
-7);
2783 strcat (string
, "include");
2784 add_prefix (&include_prefixes
, string
, 1, 0, 0);
2791 case 'v': /* Print our subcommands and print versions. */
2793 /* If they do anything other than exactly `-v', don't set
2794 verbose_flag; rather, continue on to give the error. */
2801 if (p
[1] == 0 && i
+ 1 == argc
)
2802 fatal ("argument to `-V' is missing");
2804 spec_version
= argv
[++i
];
2806 spec_version
= p
+ 1;
2807 compiler_version
= spec_version
;
2811 if (!strcmp (p
, "save-temps"))
2813 save_temps_flag
= 1;
2820 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2821 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2822 else if (WORD_SWITCH_TAKES_ARG (p
))
2823 i
+= WORD_SWITCH_TAKES_ARG (p
);
2830 /* Set up the search paths before we go looking for config files. */
2832 /* These come before the md prefixes so that we will find gcc's subcommands
2833 (such as cpp) rather than those of the host system. */
2834 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2835 as well as trying the machine and the version. */
2837 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2838 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2841 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2842 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2844 tooldir_prefix
= concat3 (tooldir_base_prefix
, spec_machine
,
2847 /* If tooldir is relative, base it on exec_prefixes. A relative
2848 tooldir lets us move the installed tree as a unit.
2850 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2851 directories, so that we can search both the user specified directory
2852 and the standard place. */
2854 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2856 if (gcc_exec_prefix
)
2858 char *gcc_exec_tooldir_prefix
2859 = concat6 (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2860 spec_version
, dir_separator_str
, tooldir_prefix
);
2862 add_prefix (&exec_prefixes
,
2863 concat3 (gcc_exec_tooldir_prefix
, "bin",
2866 add_prefix (&startfile_prefixes
,
2867 concat3 (gcc_exec_tooldir_prefix
, "lib",
2872 tooldir_prefix
= concat6 (standard_exec_prefix
, spec_machine
,
2873 dir_separator_str
, spec_version
,
2874 dir_separator_str
, tooldir_prefix
);
2877 add_prefix (&exec_prefixes
,
2878 concat3 (tooldir_prefix
, "bin", dir_separator_str
),
2880 add_prefix (&startfile_prefixes
,
2881 concat3 (tooldir_prefix
, "lib", dir_separator_str
),
2884 /* More prefixes are enabled in main, after we read the specs file
2885 and determine whether this is cross-compilation or not. */
2888 /* Then create the space for the vectors and scan again. */
2890 switches
= ((struct switchstr
*)
2891 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2892 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2895 last_language_n_infiles
= -1;
2897 /* This, time, copy the text of each switch and store a pointer
2898 to the copy in the vector of switches.
2899 Store all the infiles in their vector. */
2901 for (i
= 1; i
< argc
; i
++)
2903 /* Just skip the switches that were handled by the preceding loop. */
2904 if (! strncmp (argv
[i
], "-Wa,", 4))
2906 else if (! strncmp (argv
[i
], "-Wp,", 4))
2908 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2910 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2912 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2914 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2916 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2918 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2920 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2922 /* Compensate for the +e options to the C++ front-end;
2923 they're there simply for cfront call-compatibility. We do
2924 some magic in default_compilers to pass them down properly.
2925 Note we deliberately start at the `+' here, to avoid passing
2926 -e0 or -e1 down into the linker. */
2927 switches
[n_switches
].part1
= &argv
[i
][0];
2928 switches
[n_switches
].args
= 0;
2929 switches
[n_switches
].live_cond
= 0;
2930 switches
[n_switches
].valid
= 0;
2933 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2936 /* Split the argument at commas. */
2938 for (j
= 4; argv
[i
][j
]; j
++)
2939 if (argv
[i
][j
] == ',')
2941 infiles
[n_infiles
].language
= 0;
2942 infiles
[n_infiles
++].name
2943 = save_string (argv
[i
] + prev
, j
- prev
);
2946 /* Record the part after the last comma. */
2947 infiles
[n_infiles
].language
= 0;
2948 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2950 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2952 infiles
[n_infiles
].language
= 0;
2953 infiles
[n_infiles
++].name
= argv
[++i
];
2955 else if (strncmp (argv
[i
], "-l", 2) == 0)
2957 infiles
[n_infiles
].language
= 0;
2958 infiles
[n_infiles
++].name
= argv
[i
];
2960 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2962 register char *p
= &argv
[i
][1];
2963 register int c
= *p
;
2965 if (c
== 'B' || c
== 'b' || c
== 'V')
2967 /* Skip a separate arg, if any. */
2974 if (p
[1] == 0 && i
+ 1 == argc
)
2975 fatal ("argument to `-x' is missing");
2977 spec_lang
= argv
[++i
];
2980 if (! strcmp (spec_lang
, "none"))
2981 /* Suppress the warning if -xnone comes after the last input
2982 file, because alternate command interfaces like g++ might
2983 find it useful to place -xnone after each input file. */
2986 last_language_n_infiles
= n_infiles
;
2989 switches
[n_switches
].part1
= p
;
2990 /* Deal with option arguments in separate argv elements. */
2991 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2992 || WORD_SWITCH_TAKES_ARG (p
))
2995 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2999 /* Count only the option arguments in separate argv elements. */
3000 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3002 if (i
+ n_args
>= argc
)
3003 fatal ("argument to `-%s' is missing", p
);
3004 switches
[n_switches
].args
3005 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3007 switches
[n_switches
].args
[j
++] = argv
[++i
];
3008 /* Null-terminate the vector. */
3009 switches
[n_switches
].args
[j
] = 0;
3011 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
3013 /* On some systems, ld cannot handle -o or -L without space.
3014 So split the -o or -L from its argument. */
3015 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
3016 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3017 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3018 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3019 switches
[n_switches
].args
[1] = 0;
3022 switches
[n_switches
].args
= 0;
3024 switches
[n_switches
].live_cond
= 0;
3025 switches
[n_switches
].valid
= 0;
3026 /* This is always valid, since gcc.c itself understands it. */
3027 if (!strcmp (p
, "save-temps"))
3028 switches
[n_switches
].valid
= 1;
3033 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3035 perror_with_name (argv
[i
]);
3040 infiles
[n_infiles
].language
= spec_lang
;
3041 infiles
[n_infiles
++].name
= argv
[i
];
3046 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3047 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3049 switches
[n_switches
].part1
= 0;
3050 infiles
[n_infiles
].name
= 0;
3053 /* Process a spec string, accumulating and running commands. */
3055 /* These variables describe the input file name.
3056 input_file_number is the index on outfiles of this file,
3057 so that the output file name can be stored for later use by %o.
3058 input_basename is the start of the part of the input file
3059 sans all directory names, and basename_length is the number
3060 of characters starting there excluding the suffix .c or whatever. */
3062 static char *input_filename
;
3063 static int input_file_number
;
3064 static int input_filename_length
;
3065 static int basename_length
;
3066 static char *input_basename
;
3067 static char *input_suffix
;
3069 /* These are variables used within do_spec and do_spec_1. */
3071 /* Nonzero if an arg has been started and not yet terminated
3072 (with space, tab or newline). */
3073 static int arg_going
;
3075 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3076 is a temporary file name. */
3077 static int delete_this_arg
;
3079 /* Nonzero means %w has been seen; the next arg to be terminated
3080 is the output file name of this compilation. */
3081 static int this_is_output_file
;
3083 /* Nonzero means %s has been seen; the next arg to be terminated
3084 is the name of a library file and we should try the standard
3085 search dirs for it. */
3086 static int this_is_library_file
;
3088 /* Nonzero means that the input of this command is coming from a pipe. */
3089 static int input_from_pipe
;
3091 /* Process the spec SPEC and run the commands specified therein.
3092 Returns 0 if the spec is successfully processed; -1 if failed. */
3102 delete_this_arg
= 0;
3103 this_is_output_file
= 0;
3104 this_is_library_file
= 0;
3105 input_from_pipe
= 0;
3107 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3109 /* Force out any unfinished command.
3110 If -pipe, this forces out the last command if it ended in `|'. */
3113 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3116 if (argbuf_index
> 0)
3123 /* Process the sub-spec SPEC as a portion of a larger spec.
3124 This is like processing a whole spec except that we do
3125 not initialize at the beginning and we do not supply a
3126 newline by default at the end.
3127 INSWITCH nonzero means don't process %-sequences in SPEC;
3128 in this case, % is treated as an ordinary character.
3129 This is used while substituting switches.
3130 INSWITCH nonzero also causes SPC not to terminate an argument.
3132 Value is zero unless a line was finished
3133 and the command on that line reported an error. */
3136 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3139 char *soft_matched_part
;
3141 register char *p
= spec
;
3148 /* If substituting a switch, treat all chars like letters.
3149 Otherwise, NL, SPC, TAB and % are special. */
3150 switch (inswitch
? 'a' : c
)
3153 /* End of line: finish any pending argument,
3154 then run the pending command if one has been started. */
3157 obstack_1grow (&obstack
, 0);
3158 string
= obstack_finish (&obstack
);
3159 if (this_is_library_file
)
3160 string
= find_file (string
);
3161 store_arg (string
, delete_this_arg
, this_is_output_file
);
3162 if (this_is_output_file
)
3163 outfiles
[input_file_number
] = string
;
3167 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3170 for (i
= 0; i
< n_switches
; i
++)
3171 if (!strcmp (switches
[i
].part1
, "pipe"))
3174 /* A `|' before the newline means use a pipe here,
3175 but only if -pipe was specified.
3176 Otherwise, execute now and don't pass the `|' as an arg. */
3179 input_from_pipe
= 1;
3180 switches
[i
].valid
= 1;
3187 if (argbuf_index
> 0)
3193 /* Reinitialize for a new command, and for a new argument. */
3196 delete_this_arg
= 0;
3197 this_is_output_file
= 0;
3198 this_is_library_file
= 0;
3199 input_from_pipe
= 0;
3203 /* End any pending argument. */
3206 obstack_1grow (&obstack
, 0);
3207 string
= obstack_finish (&obstack
);
3208 if (this_is_library_file
)
3209 string
= find_file (string
);
3210 store_arg (string
, delete_this_arg
, this_is_output_file
);
3211 if (this_is_output_file
)
3212 outfiles
[input_file_number
] = string
;
3216 obstack_1grow (&obstack
, c
);
3222 /* Space or tab ends an argument if one is pending. */
3225 obstack_1grow (&obstack
, 0);
3226 string
= obstack_finish (&obstack
);
3227 if (this_is_library_file
)
3228 string
= find_file (string
);
3229 store_arg (string
, delete_this_arg
, this_is_output_file
);
3230 if (this_is_output_file
)
3231 outfiles
[input_file_number
] = string
;
3233 /* Reinitialize for a new argument. */
3235 delete_this_arg
= 0;
3236 this_is_output_file
= 0;
3237 this_is_library_file
= 0;
3244 fatal ("Invalid specification! Bug in cc.");
3247 obstack_grow (&obstack
, input_basename
, basename_length
);
3252 delete_this_arg
= 2;
3255 /* Dump out the directories specified with LIBRARY_PATH,
3256 followed by the absolute directories
3257 that we search for startfiles. */
3260 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3262 char *buffer
= (char *) xmalloc (bufsize
);
3265 for (; pl
; pl
= pl
->next
)
3267 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3268 /* Used on systems which record the specified -L dirs
3269 and use them to search for dynamic linking. */
3270 /* Relative directories always come from -B,
3271 and it is better not to use them for searching
3272 at run time. In particular, stage1 loses */
3273 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3276 /* Try subdirectory if there is one. */
3277 if (multilib_dir
!= NULL
)
3281 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3283 bufsize
= (strlen (pl
->prefix
)
3284 + strlen (machine_suffix
)) * 2 + 1;
3285 buffer
= (char *) xrealloc (buffer
, bufsize
);
3286 strcpy (buffer
, pl
->prefix
);
3287 strcat (buffer
, machine_suffix
);
3288 if (is_directory (buffer
, multilib_dir
, 1))
3290 do_spec_1 ("-L", 0, NULL_PTR
);
3291 #ifdef SPACE_AFTER_L_OPTION
3292 do_spec_1 (" ", 0, NULL_PTR
);
3294 do_spec_1 (buffer
, 1, NULL_PTR
);
3295 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3296 /* Make this a separate argument. */
3297 do_spec_1 (" ", 0, NULL_PTR
);
3300 if (!pl
->require_machine_suffix
)
3302 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3304 do_spec_1 ("-L", 0, NULL_PTR
);
3305 #ifdef SPACE_AFTER_L_OPTION
3306 do_spec_1 (" ", 0, NULL_PTR
);
3308 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3309 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3310 /* Make this a separate argument. */
3311 do_spec_1 (" ", 0, NULL_PTR
);
3317 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3319 do_spec_1 ("-L", 0, NULL_PTR
);
3320 #ifdef SPACE_AFTER_L_OPTION
3321 do_spec_1 (" ", 0, NULL_PTR
);
3323 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3324 /* Remove slash from machine_suffix. */
3325 if (strlen (machine_suffix
) >= bufsize
)
3326 bufsize
= strlen (machine_suffix
) * 2 + 1;
3327 buffer
= (char *) xrealloc (buffer
, bufsize
);
3328 strcpy (buffer
, machine_suffix
);
3329 idx
= strlen (buffer
);
3330 if (buffer
[idx
- 1] == '/'
3331 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3332 buffer
[idx
- 1] = 0;
3333 do_spec_1 (buffer
, 1, NULL_PTR
);
3334 /* Make this a separate argument. */
3335 do_spec_1 (" ", 0, NULL_PTR
);
3338 if (!pl
->require_machine_suffix
)
3340 if (is_directory (pl
->prefix
, "", 1))
3342 do_spec_1 ("-L", 0, NULL_PTR
);
3343 #ifdef SPACE_AFTER_L_OPTION
3344 do_spec_1 (" ", 0, NULL_PTR
);
3346 /* Remove slash from pl->prefix. */
3347 if (strlen (pl
->prefix
) >= bufsize
)
3348 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3349 buffer
= (char *) xrealloc (buffer
, bufsize
);
3350 strcpy (buffer
, pl
->prefix
);
3351 idx
= strlen (buffer
);
3352 if (buffer
[idx
- 1] == '/'
3353 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3354 buffer
[idx
- 1] = 0;
3355 do_spec_1 (buffer
, 1, NULL_PTR
);
3356 /* Make this a separate argument. */
3357 do_spec_1 (" ", 0, NULL_PTR
);
3366 /* {...:%efoo} means report an error with `foo' as error message
3367 and don't execute any more commands for this file. */
3371 while (*p
!= 0 && *p
!= '\n') p
++;
3372 buf
= (char *) alloca (p
- q
+ 1);
3373 strncpy (buf
, q
, p
- q
);
3383 if (save_temps_flag
)
3385 obstack_grow (&obstack
, input_basename
, basename_length
);
3386 delete_this_arg
= 0;
3390 #ifdef MKTEMP_EACH_FILE
3391 /* ??? This has a problem: the total number of
3392 values mktemp can return is limited.
3393 That matters for the names of object files.
3394 In 2.4, do something about that. */
3395 struct temp_name
*t
;
3397 while (*p
== '.' || isalpha (*p
))
3400 /* See if we already have an association of %g/%u/%U and
3402 for (t
= temp_names
; t
; t
= t
->next
)
3403 if (t
->length
== p
- suffix
3404 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3405 && t
->unique
== (c
!= 'g'))
3408 /* Make a new association if needed. %u requires one. */
3409 if (t
== 0 || c
== 'u')
3413 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3414 t
->next
= temp_names
;
3417 t
->length
= p
- suffix
;
3418 t
->suffix
= save_string (suffix
, p
- suffix
);
3419 t
->unique
= (c
!= 'g');
3420 choose_temp_base ();
3421 t
->filename
= temp_filename
;
3422 t
->filename_length
= temp_filename_length
;
3425 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3426 delete_this_arg
= 1;
3428 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3429 if (c
== 'u' || c
== 'U')
3435 sprintf (buff
, "%d", unique
);
3436 obstack_grow (&obstack
, buff
, strlen (buff
));
3439 delete_this_arg
= 1;
3445 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3451 struct prefix_list
*pl
= include_prefixes
.plist
;
3453 if (gcc_exec_prefix
)
3455 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3456 /* Make this a separate argument. */
3457 do_spec_1 (" ", 0, NULL_PTR
);
3458 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3459 do_spec_1 (" ", 0, NULL_PTR
);
3462 for (; pl
; pl
= pl
->next
)
3464 do_spec_1 ("-isystem", 1, NULL_PTR
);
3465 /* Make this a separate argument. */
3466 do_spec_1 (" ", 0, NULL_PTR
);
3467 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3468 do_spec_1 (" ", 0, NULL_PTR
);
3476 for (f
= 0; f
< n_infiles
; f
++)
3477 store_arg (outfiles
[f
], 0, 0);
3482 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3487 this_is_library_file
= 1;
3491 this_is_output_file
= 1;
3496 int index
= argbuf_index
;
3497 /* Handle the {...} following the %W. */
3500 p
= handle_braces (p
+ 1);
3503 /* If any args were output, mark the last one for deletion
3505 if (argbuf_index
!= index
)
3506 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3510 /* %x{OPTION} records OPTION for %X to output. */
3516 /* Skip past the option value and make a copy. */
3521 string
= save_string (p1
+ 1, p
- p1
- 2);
3523 /* See if we already recorded this option. */
3524 for (i
= 0; i
< n_linker_options
; i
++)
3525 if (! strcmp (string
, linker_options
[i
]))
3531 /* This option is new; add it. */
3533 if (!linker_options
)
3535 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3538 = (char **) xrealloc (linker_options
,
3539 n_linker_options
* sizeof (char **));
3541 linker_options
[n_linker_options
- 1] = string
;
3545 /* Dump out the options accumulated previously using %x. */
3547 for (i
= 0; i
< n_linker_options
; i
++)
3549 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3550 /* Make each accumulated option a separate argument. */
3551 do_spec_1 (" ", 0, NULL_PTR
);
3555 /* Dump out the options accumulated previously using -Wa,. */
3557 for (i
= 0; i
< n_assembler_options
; i
++)
3559 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3560 /* Make each accumulated option a separate argument. */
3561 do_spec_1 (" ", 0, NULL_PTR
);
3565 /* Dump out the options accumulated previously using -Wp,. */
3567 for (i
= 0; i
< n_preprocessor_options
; i
++)
3569 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3570 /* Make each accumulated option a separate argument. */
3571 do_spec_1 (" ", 0, NULL_PTR
);
3575 /* Here are digits and numbers that just process
3576 a certain constant string as a spec. */
3579 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3585 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3591 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3597 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3603 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3609 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3615 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3621 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3627 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3633 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3640 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3644 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3648 if (! strncmp (y
, "-D", 2))
3649 /* Copy the whole option. */
3650 while (*y
&& *y
!= ' ' && *y
!= '\t')
3652 else if (*y
== ' ' || *y
== '\t')
3653 /* Copy whitespace to the result. */
3655 /* Don't copy other options. */
3662 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3670 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3674 /* Copy all of CPP_PREDEFINES into BUF,
3675 but put __ after every -D and at the end of each arg. */
3679 if (! strncmp (y
, "-D", 2))
3687 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3689 /* Stick __ at front of macro name. */
3692 /* Arrange to stick __ at the end as well. */
3696 /* Copy the macro name. */
3697 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3706 /* Copy the value given, if any. */
3707 while (*y
&& *y
!= ' ' && *y
!= '\t')
3710 else if (*y
== ' ' || *y
== '\t')
3711 /* Copy whitespace to the result. */
3713 /* Don't copy -A options */
3719 /* Copy all of CPP_PREDEFINES into BUF,
3720 but put __ after every -D. */
3724 if (! strncmp (y
, "-D", 2))
3729 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3731 /* Stick -D__ at front of macro name. */
3737 /* Copy the macro name. */
3738 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3741 /* Copy the value given, if any. */
3742 while (*y
&& *y
!= ' ' && *y
!= '\t')
3747 /* Do not copy this macro - we have just done it before */
3748 while (*y
&& *y
!= ' ' && *y
!= '\t')
3752 else if (*y
== ' ' || *y
== '\t')
3753 /* Copy whitespace to the result. */
3755 /* Don't copy -A options */
3761 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3765 if (! strncmp (y
, "-A", 2))
3766 /* Copy the whole option. */
3767 while (*y
&& *y
!= ' ' && *y
!= '\t')
3769 else if (*y
== ' ' || *y
== '\t')
3770 /* Copy whitespace to the result. */
3772 /* Don't copy other options. */
3779 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3786 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3791 /* Here we define characters other than letters and digits. */
3794 p
= handle_braces (p
);
3800 obstack_1grow (&obstack
, '%');
3804 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3805 do_spec_1 (" ", 0, NULL_PTR
);
3808 /* Process a string found as the value of a spec given by name.
3809 This feature allows individual machine descriptions
3810 to add and use their own specs.
3811 %[...] modifies -D options the way %P does;
3812 %(...) uses the spec unmodified. */
3817 struct spec_list
*sl
;
3820 /* The string after the S/P is the name of a spec that is to be
3822 while (*p
&& *p
!= ')' && *p
!= ']')
3825 /* See if it's in the list */
3826 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3827 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3837 value
= do_spec_1 (name
, 0, NULL_PTR
);
3843 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3847 /* Copy all of NAME into BUF, but put __ after
3848 every -D and at the end of each arg, */
3851 if (! strncmp (y
, "-D", 2))
3859 else if (*y
== ' ' || *y
== 0)
3873 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3879 /* Discard the closing paren or bracket. */
3887 int c1
= *p
++; /* Select first or second version number. */
3888 char *v
= compiler_version
;
3890 /* If desired, advance to second version number. */
3893 /* Set P after the first period. */
3894 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3899 /* Set Q at the next period or at the end. */
3901 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3903 /* Empty string means zero. */
3909 /* Put that part into the command. */
3910 obstack_grow (&obstack
, v
, q
- v
);
3916 if (input_from_pipe
)
3917 do_spec_1 ("-", 0, NULL_PTR
);
3926 /* Backslash: treat next character as ordinary. */
3931 /* Ordinary character: put it into the current argument. */
3932 obstack_1grow (&obstack
, c
);
3936 return 0; /* End of string */
3939 /* Return 0 if we call do_spec_1 and that returns -1. */
3952 /* A `|' after the open-brace means,
3953 if the test fails, output a single minus sign rather than nothing.
3954 This is used in %{|!pipe:...}. */
3958 /* A `!' after the open-brace negates the condition:
3959 succeed if the specified switch is not present. */
3963 /* A `.' after the open-brace means test against the current suffix. */
3973 while (*p
!= ':' && *p
!= '}') p
++;
3976 register int count
= 1;
3994 int found
= (input_suffix
!= 0
3995 && strlen (input_suffix
) == p
- filter
3996 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4002 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4007 else if (p
[-1] == '*' && p
[0] == '}')
4009 /* Substitute all matching switches as separate args. */
4012 for (i
= 0; i
< n_switches
; i
++)
4013 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4014 && check_live_switch (i
, p
- filter
))
4019 /* Test for presence of the specified switch. */
4023 /* If name specified ends in *, as in {x*:...},
4024 check for %* and handle that case. */
4025 if (p
[-1] == '*' && !negate
)
4030 /* First see whether we have %*. */
4034 if (*r
== '%' && r
[1] == '*')
4038 /* If we do, handle that case. */
4041 /* Substitute all matching switches as separate args.
4042 But do this by substituting for %*
4043 in the text that follows the colon. */
4045 unsigned hard_match_len
= p
- filter
- 1;
4046 char *string
= save_string (p
+ 1, q
- p
- 2);
4048 for (i
= 0; i
< n_switches
; i
++)
4049 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4050 && check_live_switch (i
, -1))
4052 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4053 /* Pass any arguments this switch has. */
4061 /* If name specified ends in *, as in {x*:...},
4062 check for presence of any switch name starting with x. */
4065 for (i
= 0; i
< n_switches
; i
++)
4067 unsigned hard_match_len
= p
- filter
- 1;
4069 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4070 && check_live_switch (i
, hard_match_len
))
4076 /* Otherwise, check for presence of exact name specified. */
4079 for (i
= 0; i
< n_switches
; i
++)
4081 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4082 && switches
[i
].part1
[p
- filter
] == 0
4083 && check_live_switch (i
, -1))
4091 /* If it is as desired (present for %{s...}, absent for %{-s...})
4092 then substitute either the switch or the specified
4093 conditional text. */
4094 if (present
!= negate
)
4102 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4108 /* Here if a %{|...} conditional fails: output a minus sign,
4109 which means "standard output" or "standard input". */
4110 do_spec_1 ("-", 0, NULL_PTR
);
4117 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4118 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4119 spec, or -1 if either exact match or %* is used.
4121 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4122 whose value does not begin with "no-" is obsoleted by the same value
4123 with the "no-", similarly for a switch with the "no-" prefix. */
4126 check_live_switch (switchnum
, prefix_length
)
4130 char *name
= switches
[switchnum
].part1
;
4133 /* In the common case of {<at-most-one-letter>*}, a negating
4134 switch would always match, so ignore that case. We will just
4135 send the conflicting switches to the compiler phase. */
4136 if (prefix_length
>= 0 && prefix_length
<= 1)
4139 /* If we already processed this switch and determined if it was
4140 live or not, return our past determination. */
4141 if (switches
[switchnum
].live_cond
!= 0)
4142 return switches
[switchnum
].live_cond
> 0;
4144 /* Now search for duplicate in a manner that depends on the name. */
4148 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4149 if (switches
[i
].part1
[0] == 'O')
4151 switches
[switchnum
].valid
= 1;
4152 switches
[switchnum
].live_cond
= -1;
4157 case 'W': case 'f': case 'm':
4158 if (! strncmp (name
+ 1, "no-", 3))
4160 /* We have Xno-YYY, search for XYYY. */
4161 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4162 if (switches
[i
].part1
[0] == name
[0]
4163 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4165 switches
[switchnum
].valid
= 1;
4166 switches
[switchnum
].live_cond
= -1;
4172 /* We have XYYY, search for Xno-YYY. */
4173 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4174 if (switches
[i
].part1
[0] == name
[0]
4175 && switches
[i
].part1
[1] == 'n'
4176 && switches
[i
].part1
[2] == 'o'
4177 && switches
[i
].part1
[3] == '-'
4178 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4180 switches
[switchnum
].valid
= 1;
4181 switches
[switchnum
].live_cond
= -1;
4188 /* Otherwise the switch is live. */
4189 switches
[switchnum
].live_cond
= 1;
4193 /* Pass a switch to the current accumulating command
4194 in the same form that we received it.
4195 SWITCHNUM identifies the switch; it is an index into
4196 the vector of switches gcc received, which is `switches'.
4197 This cannot fail since it never finishes a command line.
4199 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4202 give_switch (switchnum
, omit_first_word
)
4204 int omit_first_word
;
4206 if (!omit_first_word
)
4208 do_spec_1 ("-", 0, NULL_PTR
);
4209 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4211 do_spec_1 (" ", 0, NULL_PTR
);
4212 if (switches
[switchnum
].args
!= 0)
4215 for (p
= switches
[switchnum
].args
; *p
; p
++)
4217 do_spec_1 (*p
, 1, NULL_PTR
);
4218 do_spec_1 (" ", 0, NULL_PTR
);
4221 switches
[switchnum
].valid
= 1;
4224 /* Search for a file named NAME trying various prefixes including the
4225 user's -B prefix and some standard ones.
4226 Return the absolute file name found. If nothing is found, return NAME. */
4234 /* Try multilib_dir if it is defined. */
4235 if (multilib_dir
!= NULL
)
4239 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4240 strcpy (try, multilib_dir
);
4241 strcat (try, dir_separator_str
);
4244 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4246 /* If we don't find it in the multi library dir, then fall
4247 through and look for it in the normal places. */
4248 if (newname
!= NULL
)
4252 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4253 return newname
? newname
: name
;
4256 /* Determine whether a directory exists. If LINKER, return 0 for
4257 certain fixed names not needed by the linker. If not LINKER, it is
4258 only important to return 0 if the host machine has a small ARG_MAX
4262 is_directory (path1
, path2
, linker
)
4267 int len1
= strlen (path1
);
4268 int len2
= strlen (path2
);
4269 char *path
= (char *) alloca (3 + len1
+ len2
);
4273 #ifndef SMALL_ARG_MAX
4278 /* Construct the path from the two parts. Ensure the string ends with "/.".
4279 The resulting path will be a directory even if the given path is a
4281 bcopy (path1
, path
, len1
);
4282 bcopy (path2
, path
+ len1
, len2
);
4283 cp
= path
+ len1
+ len2
;
4284 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4285 *cp
++ = DIR_SEPARATOR
;
4289 /* Exclude directories that the linker is known to search. */
4292 && strcmp (path
, concat4 (dir_separator_str
, "lib",
4293 dir_separator_str
, ".")) == 0)
4295 && strcmp (path
, concat6 (dir_separator_str
, "usr",
4296 dir_separator_str
, "lib",
4297 dir_separator_str
, ".")) == 0)))
4300 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4303 /* On fatal signals, delete all the temporary files. */
4306 fatal_error (signum
)
4309 signal (signum
, SIG_DFL
);
4310 delete_failure_queue ();
4311 delete_temp_files ();
4312 /* Get the same signal again, this time not handled,
4313 so its normal effect occurs. */
4314 kill (getpid (), signum
);
4325 int linker_was_run
= 0;
4326 char *explicit_link_files
;
4330 p
= argv
[0] + strlen (argv
[0]);
4331 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4334 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4335 signal (SIGINT
, fatal_error
);
4337 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4338 signal (SIGHUP
, fatal_error
);
4340 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4341 signal (SIGTERM
, fatal_error
);
4343 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4344 signal (SIGPIPE
, fatal_error
);
4348 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4350 obstack_init (&obstack
);
4352 /* Set up to remember the pathname of gcc and any options
4353 needed for collect. We use argv[0] instead of programname because
4354 we need the complete pathname. */
4355 obstack_init (&collect_obstack
);
4356 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4357 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4358 putenv (obstack_finish (&collect_obstack
));
4360 /* Choose directory for temp files. */
4362 choose_temp_base ();
4364 /* Make a table of what switches there are (switches, n_switches).
4365 Make a table of specified input files (infiles, n_infiles).
4366 Decode switches that are handled locally. */
4368 process_command (argc
, argv
);
4370 /* Initialize the vector of specs to just the default.
4371 This means one element containing 0s, as a terminator. */
4373 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4374 bcopy ((char *) default_compilers
, (char *) compilers
,
4375 sizeof default_compilers
);
4376 n_compilers
= n_default_compilers
;
4378 /* Read specs from a file if there is one. */
4380 machine_suffix
= concat4 (spec_machine
, dir_separator_str
,
4381 spec_version
, dir_separator_str
);
4382 just_machine_suffix
= concat (spec_machine
, dir_separator_str
);
4384 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4385 /* Read the specs file unless it is a default one. */
4386 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4387 read_specs (specs_file
);
4389 /* If not cross-compiling, look for startfiles in the standard places. */
4390 /* The fact that these are done here, after reading the specs file,
4391 means that it cannot be found in these directories.
4392 But that's okay. It should never be there anyway. */
4395 #ifdef MD_EXEC_PREFIX
4396 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4397 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4400 #ifdef MD_STARTFILE_PREFIX
4401 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4404 #ifdef MD_STARTFILE_PREFIX_1
4405 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4408 /* If standard_startfile_prefix is relative, base it on
4409 standard_exec_prefix. This lets us move the installed tree
4410 as a unit. If GCC_EXEC_PREFIX is defined, base
4411 standard_startfile_prefix on that as well. */
4412 if (*standard_startfile_prefix
== '/'
4413 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4414 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4418 if (gcc_exec_prefix
)
4419 add_prefix (&startfile_prefixes
,
4420 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4422 add_prefix (&startfile_prefixes
,
4423 concat3 (standard_exec_prefix
,
4425 standard_startfile_prefix
),
4429 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4431 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4433 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4434 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4439 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4440 add_prefix (&startfile_prefixes
,
4441 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4445 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4446 if (gcc_exec_prefix
)
4448 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4449 + strlen (spec_version
)
4450 + strlen (spec_machine
) + 3);
4451 strcpy (temp
, gcc_exec_prefix
);
4452 strcat (temp
, spec_machine
);
4453 strcat (temp
, dir_separator_str
);
4454 strcat (temp
, spec_version
);
4455 strcat (temp
, dir_separator_str
);
4456 gcc_exec_prefix
= temp
;
4459 /* Now we have the specs.
4460 Set the `valid' bits for switches that match anything in any spec. */
4462 validate_all_switches ();
4464 /* Now that we have the switches and the specs, set
4465 the subdirectory based on the options. */
4466 set_multilib_dir ();
4468 /* Warn about any switches that no pass was interested in. */
4470 for (i
= 0; i
< n_switches
; i
++)
4471 if (! switches
[i
].valid
)
4472 error ("unrecognized option `-%s'", switches
[i
].part1
);
4474 /* Obey some of the options. */
4476 if (print_search_dirs
)
4478 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4479 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4480 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4484 if (print_file_name
)
4486 printf ("%s\n", find_file (print_file_name
));
4490 if (print_prog_name
)
4492 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4493 printf ("%s\n", (newname
? newname
: print_prog_name
));
4497 if (print_multi_lib
)
4499 print_multilib_info ();
4503 if (print_multi_directory
)
4505 if (multilib_dir
== NULL
)
4508 printf ("%s\n", multilib_dir
);
4514 if (! strcmp (version_string
, compiler_version
))
4515 fprintf (stderr
, "gcc version %s\n", version_string
);
4517 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4518 version_string
, compiler_version
);
4525 fatal ("No input files");
4527 /* Make a place to record the compiler output file names
4528 that correspond to the input files. */
4530 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4531 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4533 /* Record which files were specified explicitly as link input. */
4535 explicit_link_files
= xmalloc (n_infiles
);
4536 bzero (explicit_link_files
, n_infiles
);
4538 for (i
= 0; i
< n_infiles
; i
++)
4540 register struct compiler
*cp
= 0;
4541 int this_file_error
= 0;
4543 /* Tell do_spec what to substitute for %i. */
4545 input_filename
= infiles
[i
].name
;
4546 input_filename_length
= strlen (input_filename
);
4547 input_file_number
= i
;
4549 /* Use the same thing in %o, unless cp->spec says otherwise. */
4551 outfiles
[i
] = input_filename
;
4553 /* Figure out which compiler from the file's suffix. */
4555 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4556 infiles
[i
].language
);
4560 /* Ok, we found an applicable compiler. Run its spec. */
4561 /* First say how much of input_filename to substitute for %b */
4565 input_basename
= input_filename
;
4566 for (p
= input_filename
; *p
; p
++)
4567 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4568 input_basename
= p
+ 1;
4570 /* Find a suffix starting with the last period,
4571 and set basename_length to exclude that suffix. */
4572 basename_length
= strlen (input_basename
);
4573 p
= input_basename
+ basename_length
;
4574 while (p
!= input_basename
&& *p
!= '.') --p
;
4575 if (*p
== '.' && p
!= input_basename
)
4577 basename_length
= p
- input_basename
;
4578 input_suffix
= p
+ 1;
4584 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4586 len
+= strlen (cp
->spec
[j
]);
4588 p
= (char *) xmalloc (len
+ 1);
4591 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4594 strcpy (p
+ len
, cp
->spec
[j
]);
4595 len
+= strlen (cp
->spec
[j
]);
4598 value
= do_spec (p
);
4601 this_file_error
= 1;
4604 /* If this file's name does not contain a recognized suffix,
4605 record it as explicit linker input. */
4608 explicit_link_files
[i
] = 1;
4610 /* Clear the delete-on-failure queue, deleting the files in it
4611 if this compilation failed. */
4613 if (this_file_error
)
4615 delete_failure_queue ();
4618 /* If this compilation succeeded, don't delete those files later. */
4619 clear_failure_queue ();
4622 /* Run ld to link all the compiler output files. */
4624 if (error_count
== 0)
4626 int tmp
= execution_count
;
4630 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4632 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4633 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4635 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4637 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4638 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4641 for (i
= 0; i
< n_switches
; i
++)
4645 obstack_grow (&collect_obstack
, " ", 1);
4648 obstack_grow (&collect_obstack
, "-", 1);
4649 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4650 strlen (switches
[i
].part1
));
4652 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4654 obstack_grow (&collect_obstack
, " ", 1);
4655 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4658 obstack_grow (&collect_obstack
, "\0", 1);
4659 putenv (obstack_finish (&collect_obstack
));
4661 value
= do_spec (link_command_spec
);
4664 linker_was_run
= (tmp
!= execution_count
);
4667 /* Warn if a -B option was specified but the prefix was never used. */
4668 unused_prefix_warnings (&exec_prefixes
);
4669 unused_prefix_warnings (&startfile_prefixes
);
4671 /* If options said don't run linker,
4672 complain about input files to be given to the linker. */
4674 if (! linker_was_run
&& error_count
== 0)
4675 for (i
= 0; i
< n_infiles
; i
++)
4676 if (explicit_link_files
[i
])
4677 error ("%s: linker input file unused since linking not done",
4680 /* Delete some or all of the temporary files we made. */
4683 delete_failure_queue ();
4684 delete_temp_files ();
4686 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4691 /* Find the proper compilation spec for the file name NAME,
4692 whose length is LENGTH. LANGUAGE is the specified language,
4693 or 0 if none specified. */
4695 static struct compiler
*
4696 lookup_compiler (name
, length
, language
)
4701 struct compiler
*cp
;
4703 /* Look for the language, if one is spec'd. */
4706 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4710 if (cp
->suffix
[0] == '@'
4711 && !strcmp (cp
->suffix
+ 1, language
))
4715 error ("language %s not recognized", language
);
4718 /* Look for a suffix. */
4719 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4721 if (/* The suffix `-' matches only the file name `-'. */
4722 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4724 (strlen (cp
->suffix
) < length
4725 /* See if the suffix matches the end of NAME. */
4727 && (!strcmp (cp
->suffix
,
4728 name
+ length
- strlen (cp
->suffix
))
4729 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4730 && !strcasecmp (cp
->suffix
,
4731 name
+ length
- strlen (cp
->suffix
)))))
4733 && !strcmp (cp
->suffix
,
4734 name
+ length
- strlen (cp
->suffix
))))
4737 if (cp
->spec
[0][0] == '@')
4739 struct compiler
*new;
4740 /* An alias entry maps a suffix to a language.
4741 Search for the language; pass 0 for NAME and LENGTH
4742 to avoid infinite recursion if language not found.
4743 Construct the new compiler spec. */
4744 language
= cp
->spec
[0] + 1;
4745 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4746 new->suffix
= cp
->suffix
;
4747 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4748 (char *) new->spec
, sizeof new->spec
);
4751 /* A non-alias entry: return it. */
4763 register char *value
= (char *) malloc (size
);
4765 fatal ("virtual memory exhausted");
4770 xrealloc (ptr
, size
)
4774 register char *value
= (char *) realloc (ptr
, size
);
4776 fatal ("virtual memory exhausted");
4780 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4786 int len1
= strlen (s1
);
4787 int len2
= strlen (s2
);
4788 char *result
= xmalloc (len1
+ len2
+ 1);
4790 strcpy (result
, s1
);
4791 strcpy (result
+ len1
, s2
);
4792 *(result
+ len1
+ len2
) = 0;
4798 concat3 (s1
, s2
, s3
)
4801 return concat (concat (s1
, s2
), s3
);
4805 concat4 (s1
, s2
, s3
, s4
)
4806 char *s1
, *s2
, *s3
, *s4
;
4808 return concat (concat (s1
, s2
), concat (s3
, s4
));
4812 concat6 (s1
, s2
, s3
, s4
, s5
, s6
)
4813 char *s1
, *s2
, *s3
, *s4
, *s5
, *s6
;
4815 return concat3 (concat (s1
, s2
), concat (s3
, s4
), concat (s5
, s6
));
4819 save_string (s
, len
)
4823 register char *result
= xmalloc (len
+ 1);
4825 bcopy (s
, result
, len
);
4831 pfatal_with_name (name
)
4836 if (errno
< sys_nerr
)
4837 s
= concat ("%s: ", my_strerror( errno
));
4839 s
= "cannot open %s";
4844 perror_with_name (name
)
4849 if (errno
< sys_nerr
)
4850 s
= concat ("%s: ", my_strerror( errno
));
4852 s
= "cannot open %s";
4862 if (errno
< sys_nerr
)
4863 s
= concat ("installation problem, cannot exec %s: ", my_strerror( errno
));
4865 s
= "installation problem, cannot exec %s";
4869 /* More 'friendly' abort that prints the line and file.
4870 config.h can #define abort fancy_abort if you like that sort of thing. */
4875 fatal ("Internal gcc abort.");
4880 /* Output an error message and exit */
4883 fatal
VPROTO((char *format
, ...))
4890 VA_START (ap
, format
);
4893 format
= va_arg (ap
, char*);
4896 fprintf (stderr
, "%s: ", programname
);
4897 vfprintf (stderr
, format
, ap
);
4899 fprintf (stderr
, "\n");
4900 delete_temp_files ();
4905 error
VPROTO((char *format
, ...))
4912 VA_START (ap
, format
);
4915 format
= va_arg (ap
, char*);
4918 fprintf (stderr
, "%s: ", programname
);
4919 vfprintf (stderr
, format
, ap
);
4922 fprintf (stderr
, "\n");
4925 #else /* not HAVE_VPRINTF */
4928 fatal (msg
, arg1
, arg2
)
4929 char *msg
, *arg1
, *arg2
;
4931 error (msg
, arg1
, arg2
);
4932 delete_temp_files ();
4937 error (msg
, arg1
, arg2
)
4938 char *msg
, *arg1
, *arg2
;
4940 fprintf (stderr
, "%s: ", programname
);
4941 fprintf (stderr
, msg
, arg1
, arg2
);
4942 fprintf (stderr
, "\n");
4945 #endif /* not HAVE_VPRINTF */
4949 validate_all_switches ()
4951 struct compiler
*comp
;
4954 struct spec_list
*spec
;
4956 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4959 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4963 if (c
== '%' && *p
== '{')
4964 /* We have a switch spec. */
4965 validate_switches (p
+ 1);
4969 /* look through the linked list of extra specs read from the specs file */
4970 for (spec
= specs
; spec
; spec
= spec
->next
)
4974 if (c
== '%' && *p
== '{')
4975 /* We have a switch spec. */
4976 validate_switches (p
+ 1);
4979 p
= link_command_spec
;
4981 if (c
== '%' && *p
== '{')
4982 /* We have a switch spec. */
4983 validate_switches (p
+ 1);
4985 /* Now notice switches mentioned in the machine-specific specs. */
4989 if (c
== '%' && *p
== '{')
4990 /* We have a switch spec. */
4991 validate_switches (p
+ 1);
4995 if (c
== '%' && *p
== '{')
4996 /* We have a switch spec. */
4997 validate_switches (p
+ 1);
5001 if (c
== '%' && *p
== '{')
5002 /* We have a switch spec. */
5003 validate_switches (p
+ 1);
5005 p
= signed_char_spec
;
5007 if (c
== '%' && *p
== '{')
5008 /* We have a switch spec. */
5009 validate_switches (p
+ 1);
5013 if (c
== '%' && *p
== '{')
5014 /* We have a switch spec. */
5015 validate_switches (p
+ 1);
5019 if (c
== '%' && *p
== '{')
5020 /* We have a switch spec. */
5021 validate_switches (p
+ 1);
5025 if (c
== '%' && *p
== '{')
5026 /* We have a switch spec. */
5027 validate_switches (p
+ 1);
5031 if (c
== '%' && *p
== '{')
5032 /* We have a switch spec. */
5033 validate_switches (p
+ 1);
5037 if (c
== '%' && *p
== '{')
5038 /* We have a switch spec. */
5039 validate_switches (p
+ 1);
5043 if (c
== '%' && *p
== '{')
5044 /* We have a switch spec. */
5045 validate_switches (p
+ 1);
5048 /* Look at the switch-name that comes after START
5049 and mark as valid all supplied switches that match it. */
5052 validate_switches (start
)
5055 register char *p
= start
;
5070 while (*p
!= ':' && *p
!= '}') p
++;
5074 else if (p
[-1] == '*')
5076 /* Mark all matching switches as valid. */
5078 for (i
= 0; i
< n_switches
; i
++)
5079 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5080 switches
[i
].valid
= 1;
5084 /* Mark an exact matching switch as valid. */
5085 for (i
= 0; i
< n_switches
; i
++)
5087 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5088 && switches
[i
].part1
[p
- filter
] == 0)
5089 switches
[i
].valid
= 1;
5094 /* Check whether a particular argument was used. */
5103 for (i
= 0; i
< n_switches
; i
++)
5104 if (! strncmp (switches
[i
].part1
, p
, len
)
5105 && strlen (switches
[i
].part1
) == len
)
5110 /* Work out the subdirectory to use based on the
5111 options. The format of multilib_select is a list of elements.
5112 Each element is a subdirectory name followed by a list of options
5113 followed by a semicolon. gcc will consider each line in turn. If
5114 none of the options beginning with an exclamation point are
5115 present, and all of the other options are present, that
5116 subdirectory will be used. */
5121 char *p
= multilib_select
;
5123 char *this_path
, *this_arg
;
5128 /* Ignore newlines. */
5135 /* Get the initial path. */
5143 this_path_len
= p
- this_path
;
5145 /* Check the arguments. */
5160 while (*p
!= ' ' && *p
!= ';')
5167 if (*this_arg
== '!')
5168 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
5170 failed
= ! used_arg (this_arg
, p
- this_arg
);
5178 if (this_path_len
!= 1
5179 || this_path
[0] != '.')
5181 multilib_dir
= xmalloc (this_path_len
+ 1);
5182 strncpy (multilib_dir
, this_path
, this_path_len
);
5183 multilib_dir
[this_path_len
] = '\0';
5192 /* Print out the multiple library subdirectory selection
5193 information. This prints out a series of lines. Each line looks
5194 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5195 required. Only the desired options are printed out, the negative
5196 matches. The options are print without a leading dash. There are
5197 no spaces to make it easy to use the information in the shell.
5198 Each subdirectory is printed only once. This assumes the ordering
5199 generated by the genmultilib script. */
5202 print_multilib_info ()
5204 char *p
= multilib_select
;
5205 char *last_path
= 0, *this_path
;
5207 int last_path_len
= 0;
5211 /* Ignore newlines. */
5218 /* Get the initial path. */
5227 /* If this is a duplicate, skip it. */
5228 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5229 && ! strncmp (last_path
, this_path
, last_path_len
));
5231 last_path
= this_path
;
5232 last_path_len
= p
- this_path
;
5238 for (p1
= last_path
; p1
< p
; p1
++)
5257 use_arg
= *p
!= '!';
5262 while (*p
!= ' ' && *p
!= ';')