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 #if defined(bsd4_4) || defined(__NetBSD__)
175 extern const char *const sys_errlist
[];
177 extern char *sys_errlist
[];
180 extern int execv (), execvp ();
182 /* If a stage of compilation returns an exit status >= 1,
183 compilation of that file ceases. */
185 #define MIN_FATAL_STATUS 1
187 /* Flag saying to print the full filename of this file
188 as found through our usual search mechanism. */
190 static char *print_file_name
= NULL
;
192 /* As print_file_name, but search for executable file. */
194 static char *print_prog_name
= NULL
;
196 /* Flag saying to print the relative path we'd use to
197 find libgcc.a given the current compiler flags. */
199 static int print_multi_directory
;
201 /* Flag saying to print the list of subdirectories and
202 compiler flags used to select them in a standard form. */
204 static int print_multi_lib
;
206 /* Flag indicating whether we should print the command and arguments */
208 static int verbose_flag
;
210 /* Nonzero means write "temp" files in source directory
211 and use the source file's name in them, and don't delete them. */
213 static int save_temps_flag
;
215 /* The compiler version. */
217 static char *compiler_version
;
219 /* The target version specified with -V */
221 static char *spec_version
= DEFAULT_TARGET_VERSION
;
223 /* The target machine specified with -b. */
225 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
227 /* Nonzero if cross-compiling.
228 When -b is used, the value comes from the `specs' file. */
231 static int cross_compile
= 1;
233 static int cross_compile
= 0;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count
= 0;
240 /* This is the obstack which we use to allocate many strings. */
242 static struct obstack obstack
;
244 /* This is the obstack to build an environment variable to pass to
245 collect2 that describes all of the relevant switches of what to
246 pass the compiler in building the list of pointers to constructors
249 static struct obstack collect_obstack
;
251 extern char *version_string
;
253 /* Forward declaration for prototypes. */
256 static void set_spec
PROTO((char *, char *));
257 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
258 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
259 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
260 static char *skip_whitespace
PROTO((char *));
261 static void record_temp_file
PROTO((char *, int, int));
262 static void delete_if_ordinary
PROTO((char *));
263 static void delete_temp_files
PROTO((void));
264 static void delete_failure_queue
PROTO((void));
265 static void clear_failure_queue
PROTO((void));
266 static char *choose_temp_base_try
PROTO((char *, char *));
267 static void choose_temp_base
PROTO((void));
268 static int check_live_switch
PROTO((int, int));
269 static char *handle_braces
PROTO((char *));
270 static char *save_string
PROTO((char *, int));
271 static char *concat
PROTO((char *, char *));
272 static char *concat3
PROTO((char *, char *, char *));
273 static char *concat4
PROTO((char *, char *, char *, char *));
274 static char *concat6
PROTO((char *, char *, char *, char *, char *, \
276 static int do_spec
PROTO((char *));
277 static int do_spec_1
PROTO((char *, int, char *));
278 static char *find_file
PROTO((char *));
279 static int is_directory
PROTO((char *, char *, int));
280 static void validate_switches
PROTO((char *));
281 static void validate_all_switches
PROTO((void));
282 static void give_switch
PROTO((int, int));
283 static int used_arg
PROTO((char *, int));
284 static void set_multilib_dir
PROTO((void));
285 static void print_multilib_info
PROTO((void));
286 static void pfatal_with_name
PROTO((char *));
287 static void perror_with_name
PROTO((char *));
288 static void perror_exec
PROTO((char *));
290 static void fatal
PVPROTO((char *, ...));
291 static void error
PVPROTO((char *, ...));
293 /* We must not provide any prototype here, even if ANSI C. */
294 static void fatal
PROTO(());
295 static void error
PROTO(());
302 /* Specs are strings containing lines, each of which (if not blank)
303 is made up of a program name, and arguments separated by spaces.
304 The program name must be exact and start from root, since no path
305 is searched and it is unreliable to depend on the current working directory.
306 Redirection of input or output is not supported; the subprograms must
307 accept filenames saying what files to read and write.
309 In addition, the specs can contain %-sequences to substitute variable text
310 or for conditional text. Here is a table of all defined %-sequences.
311 Note that spaces are not generated automatically around the results of
312 expanding these sequences; therefore, you can concatenate them together
313 or with constant text in a single argument.
315 %% substitute one % into the program name or argument.
316 %i substitute the name of the input file being processed.
317 %b substitute the basename of the input file being processed.
318 This is the substring up to (and not including) the last period
319 and not including the directory.
320 %g substitute the temporary-file-name-base. This is a string chosen
321 once per compilation. Different temporary file names are made by
322 concatenation of constant strings on the end, as in `%g.s'.
323 %g also has the same effect of %d.
324 %u like %g, but make the temporary file name unique.
325 %U returns the last file name generated with %u.
326 %d marks the argument containing or following the %d as a
327 temporary file name, so that that file will be deleted if CC exits
328 successfully. Unlike %g, this contributes no text to the argument.
329 %w marks the argument containing or following the %w as the
330 "output file" of this compilation. This puts the argument
331 into the sequence of arguments that %o will substitute later.
333 like %{...} but mark last argument supplied within
334 as a file to be deleted on failure.
335 %o substitutes the names of all the output files, with spaces
336 automatically placed around them. You should write spaces
337 around the %o as well or the results are undefined.
338 %o is for use in the specs for running the linker.
339 Input files whose names have no recognized suffix are not compiled
340 at all, but they are included among the output files, so they will
342 %O substitutes the suffix for object files.
343 %p substitutes the standard macro predefinitions for the
344 current target machine. Use this when running cpp.
345 %P like %p, but puts `__' before and after the name of each macro.
346 (Except macros that already have __.)
348 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
349 %s current argument is the name of a library or startup file of some sort.
350 Search for that file in a standard list of directories
351 and substitute the full name found.
352 %eSTR Print STR as an error message. STR is terminated by a newline.
353 Use this when inconsistent options are detected.
354 %x{OPTION} Accumulate an option for %X.
355 %X Output the accumulated linker options specified by compilations.
356 %Y Output the accumulated assembler options specified by compilations.
357 %Z Output the accumulated preprocessor options specified by compilations.
358 %v1 Substitute the major version number of GCC.
359 (For version 2.5.n, this is 2.)
360 %v2 Substitute the minor version number of GCC.
361 (For version 2.5.n, this is 5.)
362 %a process ASM_SPEC as a spec.
363 This allows config.h to specify part of the spec for running as.
364 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
365 used here. This can be used to run a post-processor after the
366 assembler has done it's job.
367 %D Dump out a -L option for each directory in startfile_prefixes.
368 If multilib_dir is set, extra entries are generated with it affixed.
369 %l process LINK_SPEC as a spec.
370 %L process LIB_SPEC as a spec.
371 %G process LIBGCC_SPEC as a spec.
372 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
373 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
374 %c process SIGNED_CHAR_SPEC as a spec.
375 %C process CPP_SPEC as a spec. A capital C is actually used here.
376 %1 process CC1_SPEC as a spec.
377 %2 process CC1PLUS_SPEC as a spec.
378 %| output "-" if the input for the current command is coming from a pipe.
379 %* substitute the variable part of a matched option. (See below.)
380 Note that each comma in the substituted string is replaced by
382 %{S} substitutes the -S switch, if that switch was given to CC.
383 If that switch was not specified, this substitutes nothing.
384 Here S is a metasyntactic variable.
385 %{S*} substitutes all the switches specified to CC whose names start
386 with -S. This is used for -o, -D, -I, etc; switches that take
387 arguments. CC considers `-o foo' as being one switch whose
388 name starts with `o'. %{o*} would substitute this text,
389 including the space; thus, two arguments would be generated.
390 %{S*:X} substitutes X if one or more switches whose names start with -S are
391 specified to CC. Note that the tail part of the -S option
392 (i.e. the part matched by the `*') will be substituted for each
393 occurrence of %* within X.
394 %{S:X} substitutes X, but only if the -S switch was given to CC.
395 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
396 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
397 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
398 %{.S:X} substitutes X, but only if processing a file with suffix S.
399 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
400 %(Spec) processes a specification defined in a specs file as *Spec:
401 %[Spec] as above, but put __ around -D arguments
403 The conditional text X in a %{S:X} or %{!S:X} construct may contain
404 other nested % constructs or spaces, or even newlines. They are
405 processed as usual, as described above.
407 The -O, -f, -m, and -W switches are handled specifically in these
408 constructs. If another value of -O or the negated form of a -f, -m, or
409 -W switch is found later in the command line, the earlier switch
410 value is ignored, except with {S*} where S is just one letter; this
411 passes all matching options.
413 The character | is used to indicate that a command should be piped to
414 the following command, but only if -pipe is specified.
416 Note that it is built into CC which switches take arguments and which
417 do not. You might think it would be useful to generalize this to
418 allow each compiler's spec to say which switches take arguments. But
419 this cannot be done in a consistent fashion. CC cannot even decide
420 which input files have been specified without knowing which switches
421 take arguments, and it must know which input files to compile in order
422 to tell which compilers to run.
424 CC also knows implicitly that arguments starting in `-l' are to be
425 treated as compiler output files, and passed to the linker in their
426 proper position among the other output files. */
428 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
430 /* config.h can define ASM_SPEC to provide extra args to the assembler
431 or extra switch-translations. */
436 /* config.h can define ASM_FINAL_SPEC to run a post processor after
437 the assembler has run. */
438 #ifndef ASM_FINAL_SPEC
439 #define ASM_FINAL_SPEC ""
442 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
443 or extra switch-translations. */
448 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
449 or extra switch-translations. */
454 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
455 or extra switch-translations. */
457 #define CC1PLUS_SPEC ""
460 /* config.h can define LINK_SPEC to provide extra args to the linker
461 or extra switch-translations. */
466 /* config.h can define LIB_SPEC to override the default libraries. */
468 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
471 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
474 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
475 /* Have gcc do the search for libgcc.a. */
476 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
478 #define LIBGCC_SPEC "%{!shared:-lgcc}"
482 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
483 #ifndef STARTFILE_SPEC
484 #define STARTFILE_SPEC \
485 "%{!shared:%{pg:gcrt0.%O%s}%{!pg:%{p:mcrt0.%O%s}%{!p:crt0.%O%s}}}"
488 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
489 Make the string nonempty to require spaces there. */
490 #ifndef SWITCHES_NEED_SPACES
491 #define SWITCHES_NEED_SPACES ""
494 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
496 #define ENDFILE_SPEC ""
499 /* This spec is used for telling cpp whether char is signed or not. */
500 #ifndef SIGNED_CHAR_SPEC
501 /* Use #if rather than ?:
502 because MIPS C compiler rejects like ?: in initializers. */
503 #if DEFAULT_SIGNED_CHAR
504 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
506 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
510 /* MULTILIB_SELECT comes from multilib.h. It gives a
511 string interpreted by set_multilib_dir to select a library
512 subdirectory based on the compiler options. */
513 #ifndef MULTILIB_SELECT
514 #define MULTILIB_SELECT ". ;"
517 static char *cpp_spec
= CPP_SPEC
;
518 static char *cpp_predefines
= CPP_PREDEFINES
;
519 static char *cc1_spec
= CC1_SPEC
;
520 static char *cc1plus_spec
= CC1PLUS_SPEC
;
521 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
522 static char *asm_spec
= ASM_SPEC
;
523 static char *asm_final_spec
= ASM_FINAL_SPEC
;
524 static char *link_spec
= LINK_SPEC
;
525 static char *lib_spec
= LIB_SPEC
;
526 static char *libgcc_spec
= LIBGCC_SPEC
;
527 static char *endfile_spec
= ENDFILE_SPEC
;
528 static char *startfile_spec
= STARTFILE_SPEC
;
529 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
530 static char *multilib_select
= MULTILIB_SELECT
;
532 /* This defines which switch letters take arguments. */
534 #ifndef SWITCH_TAKES_ARG
535 #define SWITCH_TAKES_ARG(CHAR) \
536 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
537 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
538 || (CHAR) == 'I' || (CHAR) == 'm' \
539 || (CHAR) == 'L' || (CHAR) == 'A')
542 /* This defines which multi-letter switches take arguments. */
544 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
545 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
546 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
547 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
548 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
549 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
550 || !strcmp (STR, "isystem"))
552 #ifndef WORD_SWITCH_TAKES_ARG
553 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
556 /* Record the mapping from file suffixes for compilation specs. */
560 char *suffix
; /* Use this compiler for input files
561 whose names end in this suffix. */
563 char *spec
[4]; /* To use this compiler, concatenate these
564 specs and pass to do_spec. */
567 /* Pointer to a vector of `struct compiler' that gives the spec for
568 compiling a file, based on its suffix.
569 A file that does not end in any of these suffixes will be passed
570 unchanged to the loader and nothing else will be done to it.
572 An entry containing two 0s is used to terminate the vector.
574 If multiple entries match a file, the last matching one is used. */
576 static struct compiler
*compilers
;
578 /* Number of entries in `compilers', not counting the null terminator. */
580 static int n_compilers
;
582 /* The default list of file name suffixes and their compilation specs. */
584 static struct compiler default_compilers
[] =
586 {".F", "@f77-cpp-output"},
588 /* For f77 we want -traditional to avoid errors with, for
589 instance, mismatched '. Also, we avoid unpleasant surprises
590 with substitution of names not prefixed by `_ by' using %P
591 rather than %p (although this isn't consistent with SGI and
592 Sun f77, at least) so you test `__unix' rather than `unix'.
593 -D_LANGUAGE_FORTRAN is used by some compilers like SGI and
594 might as well be in there. */
595 "cpp -lang-c -P %{nostdinc*} %{C} %{v} %{A*} %{I*} %I\
596 %{C:%{!E:%eGNU C does not support -C without using -E}}\
597 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
598 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
599 %{!undef:%P} -D_LANGUAGE_FORTRAN %{trigraphs} \
600 %c %{O*:-D__OPTIMIZE__} -traditional %{ftraditional:-traditional}\
601 %{traditional-cpp:-traditional}\
602 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
603 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
604 "f771 %{!pipe:%g.i} \
605 %{!Q:-quiet} -dumpbase %b.F %{d*} %{m*} %{a}\
606 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
607 %{v:-version -fversion} %{f*}\
608 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
609 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
610 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{keep-local-as-symbols:-L} \
611 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
612 %{!pipe:%g.s} %A\n }"},
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\
621 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{keep-local-as-symbols:-L} \
622 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 %{!pipe:%g.s} %A\n }"},
626 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
627 %{C:%{!E:%eGNU C does not support -C without using -E}}\
628 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
629 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
630 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
631 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
632 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
633 %{traditional-cpp:-traditional}\
634 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
635 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
636 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
637 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
638 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
639 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
641 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
642 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
643 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
644 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
645 %{!pipe:%g.s} %A\n }}}}"},
647 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
648 %{C:%{!E:%eGNU C does not support -C without using -E}}\
649 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
650 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
651 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
652 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
653 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
654 %{traditional-cpp:-traditional}\
655 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
657 %{!E:%e-E required when input is from standard input}"},
658 {".m", "@objective-c"},
660 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
661 %{C:%{!E:%eGNU C does not support -C without using -E}}\
662 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
663 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
664 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
665 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
666 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
667 %{traditional-cpp:-traditional}\
668 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
669 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
670 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
671 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
672 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
673 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
674 -lang-objc %{gen-decls} \
676 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
677 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
678 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
679 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
680 %{!pipe:%g.s} %A\n }}}}"},
683 "%{!E:%eCompilation of header file requested} \
684 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
685 %{C:%{!E:%eGNU C does not support -C without using -E}}\
686 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
687 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
688 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
689 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
690 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
691 %{traditional-cpp:-traditional}\
692 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
697 "cpp -lang-chill %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
698 %{C:%{!E:%eGNU CHILL does not support -C without using -E}}\
699 -undef -D__GNUCHILL__=%v1 -D__GNUC_MINOR__=%v2\
700 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
701 %{traditional-cpp:-traditional} %{!undef:%{!ansi:%p} %P} %{trigraphs}\
702 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
703 %i %{!E:%g.i}%{E:%W{o*}} \n",
704 "%{!E:cc1chill %g.i %1 \
705 %{!Q:-quiet} -dumpbase %b.ch %{d*} %{m*} %{a}\
706 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{itu} \
707 %{v:-version} %{pg:-p} %{p} %{f*} %{I*} \
709 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
710 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
711 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y %{keep-local-as-symbols:-L} \
712 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
713 %{!pipe:%g.s} %A\n }}"},
720 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
721 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
722 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
723 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
724 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
725 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
726 %{traditional-cpp:-traditional} %{trigraphs}\
727 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
728 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
729 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
730 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
731 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
732 %{traditional} %{v:-version} %{pg:-p} %{p}\
733 %{f*} %{+e*} %{aux-info*}\
734 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
735 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
736 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
737 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
738 %{!pipe:%g.s} %A\n }}}}"},
739 {".i", "@cpp-output"},
741 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
742 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
743 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
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\
747 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
748 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
749 %{!pipe:%g.s} %A\n }}}}"},
750 {".ii", "@c++-cpp-output"},
752 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
753 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
754 %{traditional} %{v:-version} %{pg:-p} %{p}\
755 %{f*} %{+e*} %{aux-info*}\
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\
758 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
759 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
760 %{!pipe:%g.s} %A\n }}}}"},
761 {".s", "@assembler"},
763 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
764 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
766 {".S", "@assembler-with-cpp"},
767 {"@assembler-with-cpp",
768 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
769 %{C:%{!E:%eGNU C does not support -C without using -E}}\
770 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
771 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
772 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
773 %{traditional-cpp:-traditional}\
774 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
775 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
776 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
777 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
778 %{!pipe:%g.s} %A\n }}}}"},
783 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
784 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
786 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
787 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
788 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
789 %{c:%W{o*}%{!o*:-o %w%b.%O}}\
790 %{!c:-o %d%w%u.%O} %{!pipe:%g.s} %A\n}}}}}} "},
791 /* Mark end of table */
795 /* Number of elements in default_compilers, not counting the terminator. */
797 static int n_default_compilers
798 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
800 /* Here is the spec for running the linker, after compiling all files. */
802 /* -u* was put back because both BSD and SysV seem to support it. */
803 /* %{static:} simply prevents an error message if the target machine
804 doesn't handle -static. */
805 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
806 scripts which exist in user specified directories, or in standard
808 #ifdef LINK_LIBGCC_SPECIAL
809 /* Don't generate -L options. */
810 static char *link_command_spec
= "\
812 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
813 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
814 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
815 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
818 static char *link_command_spec
= "\
820 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
821 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
822 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
823 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
826 /* A vector of options to give to the linker.
827 These options are accumulated by %x,
828 and substituted into the linker command with %X. */
829 static int n_linker_options
;
830 static char **linker_options
;
832 /* A vector of options to give to the assembler.
833 These options are accumulated by -Wa,
834 and substituted into the assembler command with %Y. */
835 static int n_assembler_options
;
836 static char **assembler_options
;
838 /* A vector of options to give to the preprocessor.
839 These options are accumulated by -Wp,
840 and substituted into the preprocessor command with %Z. */
841 static int n_preprocessor_options
;
842 static char **preprocessor_options
;
844 /* Define how to map long options into short ones. */
846 /* This structure describes one mapping. */
849 /* The long option's name. */
851 /* The equivalent short option. */
853 /* Argument info. A string of flag chars; NULL equals no options.
854 a => argument required.
855 o => argument optional.
856 j => join argument to equivalent, making one word.
857 * => require other text after NAME as an argument. */
861 /* This is the table of mappings. Mappings are tried sequentially
862 for each option encountered; the first one that matches, wins. */
864 struct option_map option_map
[] =
866 {"--all-warnings", "-Wall", 0},
867 {"--ansi", "-ansi", 0},
868 {"--assemble", "-S", 0},
869 {"--assert", "-A", "a"},
870 {"--comments", "-C", 0},
871 {"--compile", "-c", 0},
872 {"--debug", "-g", "oj"},
873 {"--define-macro", "-D", "a"},
874 {"--dependencies", "-M", 0},
875 {"--dump", "-d", "a"},
876 {"--dumpbase", "-dumpbase", "a"},
877 {"--entry", "-e", 0},
878 {"--extra-warnings", "-W", 0},
879 {"--for-assembler", "-Wa", "a"},
880 {"--for-linker", "-Xlinker", "a"},
881 {"--force-link", "-u", "a"},
882 {"--imacros", "-imacros", "a"},
883 {"--include", "-include", "a"},
884 {"--include-barrier", "-I-", 0},
885 {"--include-directory", "-I", "a"},
886 {"--include-directory-after", "-idirafter", "a"},
887 {"--include-prefix", "-iprefix", "a"},
888 {"--include-with-prefix", "-iwithprefix", "a"},
889 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
890 {"--include-with-prefix-after", "-iwithprefix", "a"},
891 {"--language", "-x", "a"},
892 {"--library-directory", "-L", "a"},
893 {"--machine", "-m", "aj"},
894 {"--machine-", "-m", "*j"},
895 {"--no-line-commands", "-P", 0},
896 {"--no-precompiled-includes", "-noprecomp", 0},
897 {"--no-standard-includes", "-nostdinc", 0},
898 {"--no-standard-libraries", "-nostdlib", 0},
899 {"--no-warnings", "-w", 0},
900 {"--optimize", "-O", "oj"},
901 {"--output", "-o", "a"},
902 {"--pedantic", "-pedantic", 0},
903 {"--pedantic-errors", "-pedantic-errors", 0},
904 {"--pipe", "-pipe", 0},
905 {"--prefix", "-B", "a"},
906 {"--preprocess", "-E", 0},
907 {"--print-file-name", "-print-file-name=", "aj"},
908 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
909 {"--print-missing-file-dependencies", "-MG", 0},
910 {"--print-multi-lib", "-print-multi-lib", 0},
911 {"--print-multi-directory", "-print-multi-directory", 0},
912 {"--print-prog-name", "-print-prog-name=", "aj"},
913 {"--profile", "-p", 0},
914 {"--profile-blocks", "-a", 0},
915 {"--quiet", "-q", 0},
916 {"--save-temps", "-save-temps", 0},
917 {"--shared", "-shared", 0},
918 {"--silent", "-q", 0},
919 {"--static", "-static", 0},
920 {"--symbolic", "-symbolic", 0},
921 {"--target", "-b", "a"},
922 {"--trace-includes", "-H", 0},
923 {"--traditional", "-traditional", 0},
924 {"--traditional-cpp", "-traditional-cpp", 0},
925 {"--trigraphs", "-trigraphs", 0},
926 {"--undefine-macro", "-U", "a"},
927 {"--use-version", "-V", "a"},
928 {"--user-dependencies", "-MM", 0},
929 {"--verbose", "-v", 0},
930 {"--version", "-dumpversion", 0},
931 {"--warn-", "-W", "*j"},
932 {"--write-dependencies", "-MD", 0},
933 {"--write-user-dependencies", "-MMD", 0},
937 /* Translate the options described by *ARGCP and *ARGVP.
938 Make a new vector and store it back in *ARGVP,
939 and store its length in *ARGVC. */
942 translate_options (argcp
, argvp
)
948 char **argv
= *argvp
;
949 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
953 newv
[newindex
++] = argv
[i
++];
957 /* Translate -- options. */
958 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
960 /* Find a mapping that applies to this option. */
961 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
963 int optlen
= strlen (option_map
[j
].name
);
964 int arglen
= strlen (argv
[i
]);
965 int complen
= arglen
> optlen
? optlen
: arglen
;
966 char *arginfo
= option_map
[j
].arg_info
;
971 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
978 k
< sizeof (option_map
) / sizeof (option_map
[0]);
980 if (strlen (option_map
[k
].name
) >= arglen
981 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
983 error ("Ambiguous abbreviation %s", argv
[i
]);
987 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
993 /* If the option has an argument, accept that. */
994 if (argv
[i
][optlen
] == '=')
995 arg
= argv
[i
] + optlen
+ 1;
997 /* If this mapping requires extra text at end of name,
998 accept that as "argument". */
999 else if (index (arginfo
, '*') != 0)
1000 arg
= argv
[i
] + optlen
;
1002 /* Otherwise, extra text at end means mismatch.
1003 Try other mappings. */
1008 else if (index (arginfo
, '*') != 0)
1010 error ("Incomplete `%s' option", option_map
[j
].name
);
1014 /* Handle arguments. */
1015 if (index (arginfo
, 'a') != 0)
1021 error ("Missing argument to `%s' option",
1022 option_map
[j
].name
);
1029 else if (index (arginfo
, '*') != 0)
1031 else if (index (arginfo
, 'o') == 0)
1034 error ("Extraneous argument to `%s' option",
1035 option_map
[j
].name
);
1039 /* Store the translation as one argv elt or as two. */
1040 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1041 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
);
1044 newv
[newindex
++] = option_map
[j
].equivalent
;
1045 newv
[newindex
++] = arg
;
1048 newv
[newindex
++] = option_map
[j
].equivalent
;
1056 /* Handle old-fashioned options--just copy them through,
1057 with their arguments. */
1058 else if (argv
[i
][0] == '-')
1060 char *p
= argv
[i
] + 1;
1064 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1065 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1066 else if (WORD_SWITCH_TAKES_ARG (p
))
1067 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1068 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1071 else if (! strcmp (p
, "Xlinker"))
1074 /* Watch out for an option at the end of the command line that
1075 is missing arguments, and avoid skipping past the end of the
1077 if (nskip
+ i
> argc
)
1082 newv
[newindex
++] = argv
[i
++];
1087 /* Ordinary operands, or +e options. */
1088 newv
[newindex
++] = argv
[i
++];
1097 /* Read compilation specs from a file named FILENAME,
1098 replacing the default ones.
1100 A suffix which starts with `*' is a definition for
1101 one of the machine-specific sub-specs. The "suffix" should be
1102 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1103 The corresponding spec is stored in asm_spec, etc.,
1104 rather than in the `compilers' vector.
1106 Anything invalid in the file is a fatal error. */
1109 read_specs (filename
)
1113 struct stat statbuf
;
1118 fprintf (stderr
, "Reading specs from %s\n", filename
);
1120 /* Open and stat the file. */
1121 desc
= open (filename
, O_RDONLY
, 0);
1123 pfatal_with_name (filename
);
1124 if (stat (filename
, &statbuf
) < 0)
1125 pfatal_with_name (filename
);
1127 /* Read contents of file into BUFFER. */
1128 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1129 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1130 buffer
[statbuf
.st_size
] = 0;
1133 /* Scan BUFFER for specs, putting them in the vector. */
1139 char *in
, *out
, *p1
, *p2
;
1141 /* Advance P in BUFFER to the next nonblank nocomment line. */
1142 p
= skip_whitespace (p
);
1146 /* Find the colon that should end the suffix. */
1148 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1149 /* The colon shouldn't be missing. */
1151 fatal ("specs file malformed after %d characters", p1
- buffer
);
1152 /* Skip back over trailing whitespace. */
1154 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1155 /* Copy the suffix to a string. */
1156 suffix
= save_string (p
, p2
- p
);
1157 /* Find the next line. */
1158 p
= skip_whitespace (p1
+ 1);
1160 fatal ("specs file malformed after %d characters", p
- buffer
);
1162 /* Find next blank line. */
1163 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1164 /* Specs end at the blank line and do not include the newline. */
1165 spec
= save_string (p
, p1
- p
);
1168 /* Delete backslash-newline sequences from the spec. */
1173 if (in
[0] == '\\' && in
[1] == '\n')
1175 else if (in
[0] == '#')
1177 while (*in
&& *in
!= '\n') in
++;
1184 if (suffix
[0] == '*')
1186 if (! strcmp (suffix
, "*link_command"))
1187 link_command_spec
= spec
;
1189 set_spec (suffix
+ 1, spec
);
1193 /* Add this pair to the vector. */
1195 = ((struct compiler
*)
1196 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1197 compilers
[n_compilers
].suffix
= suffix
;
1198 bzero ((char *) compilers
[n_compilers
].spec
,
1199 sizeof compilers
[n_compilers
].spec
);
1200 compilers
[n_compilers
].spec
[0] = spec
;
1202 bzero ((char *) &compilers
[n_compilers
],
1203 sizeof compilers
[n_compilers
]);
1207 link_command_spec
= spec
;
1210 if (link_command_spec
== 0)
1211 fatal ("spec file has no spec for linking");
1220 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1221 be considered whitespace. */
1222 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1224 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1228 while (*p
!= '\n') p
++;
1238 /* Structure to keep track of the specs that have been defined so far. These
1239 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1243 char *name
; /* Name of the spec. */
1244 char *spec
; /* The spec itself. */
1245 struct spec_list
*next
; /* Next spec in linked list. */
1248 /* List of specs that have been defined so far. */
1250 static struct spec_list
*specs
= (struct spec_list
*) 0;
1252 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1253 removed; If the spec starts with a + then SPEC is added to the end of the
1257 set_spec (name
, spec
)
1261 struct spec_list
*sl
;
1264 /* See if the spec already exists */
1265 for (sl
= specs
; sl
; sl
= sl
->next
)
1266 if (strcmp (sl
->name
, name
) == 0)
1271 /* Not found - make it */
1272 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1273 sl
->name
= save_string (name
, strlen (name
));
1274 sl
->spec
= save_string ("", 0);
1279 old_spec
= sl
->spec
;
1280 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1281 sl
->spec
= concat (old_spec
, spec
+ 1);
1283 sl
->spec
= save_string (spec
, strlen (spec
));
1285 if (! strcmp (name
, "asm"))
1286 asm_spec
= sl
->spec
;
1287 else if (! strcmp (name
, "asm_final"))
1288 asm_final_spec
= sl
->spec
;
1289 else if (! strcmp (name
, "cc1"))
1290 cc1_spec
= sl
->spec
;
1291 else if (! strcmp (name
, "cc1plus"))
1292 cc1plus_spec
= sl
->spec
;
1293 else if (! strcmp (name
, "cpp"))
1294 cpp_spec
= sl
->spec
;
1295 else if (! strcmp (name
, "endfile"))
1296 endfile_spec
= sl
->spec
;
1297 else if (! strcmp (name
, "lib"))
1298 lib_spec
= sl
->spec
;
1299 else if (! strcmp (name
, "libgcc"))
1300 libgcc_spec
= sl
->spec
;
1301 else if (! strcmp (name
, "link"))
1302 link_spec
= sl
->spec
;
1303 else if (! strcmp (name
, "predefines"))
1304 cpp_predefines
= sl
->spec
;
1305 else if (! strcmp (name
, "signed_char"))
1306 signed_char_spec
= sl
->spec
;
1307 else if (! strcmp (name
, "startfile"))
1308 startfile_spec
= sl
->spec
;
1309 else if (! strcmp (name
, "switches_need_spaces"))
1310 switches_need_spaces
= sl
->spec
;
1311 else if (! strcmp (name
, "cross_compile"))
1312 cross_compile
= atoi (sl
->spec
);
1313 else if (! strcmp (name
, "multilib"))
1314 multilib_select
= sl
->spec
;
1315 /* Free the old spec */
1320 /* Accumulate a command (program name and args), and run it. */
1322 /* Vector of pointers to arguments in the current line of specifications. */
1324 static char **argbuf
;
1326 /* Number of elements allocated in argbuf. */
1328 static int argbuf_length
;
1330 /* Number of elements in argbuf currently in use (containing args). */
1332 static int argbuf_index
;
1334 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1335 temp file. Used only if MKTEMP_EACH_FILE. */
1337 static struct temp_name
{
1338 char *suffix
; /* suffix associated with the code. */
1339 int length
; /* strlen (suffix). */
1340 int unique
; /* Indicates whether %g or %u/%U was used. */
1341 char *filename
; /* associated filename. */
1342 int filename_length
; /* strlen (filename). */
1343 struct temp_name
*next
;
1346 /* Number of commands executed so far. */
1348 static int execution_count
;
1350 /* Number of commands that exited with a signal. */
1352 static int signal_count
;
1354 /* Name with which this program was invoked. */
1356 static char *programname
;
1358 /* Structures to keep track of prefixes to try when looking for files. */
1362 char *prefix
; /* String to prepend to the path. */
1363 struct prefix_list
*next
; /* Next in linked list. */
1364 int require_machine_suffix
; /* Don't use without machine_suffix. */
1365 /* 2 means try both machine_suffix and just_machine_suffix. */
1366 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1371 struct prefix_list
*plist
; /* List of prefixes to try */
1372 int max_len
; /* Max length of a prefix in PLIST */
1373 char *name
; /* Name of this list (used in config stuff) */
1376 /* List of prefixes to try when looking for executables. */
1378 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1380 /* List of prefixes to try when looking for startup (crt0) files. */
1382 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1384 /* List of prefixes to try when looking for include files. */
1386 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1388 /* Suffix to attach to directories searched for commands.
1389 This looks like `MACHINE/VERSION/'. */
1391 static char *machine_suffix
= 0;
1393 /* Suffix to attach to directories searched for commands.
1394 This is just `MACHINE/'. */
1396 static char *just_machine_suffix
= 0;
1398 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1400 static char *gcc_exec_prefix
;
1402 /* Default prefixes to attach to command names. */
1404 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1405 #undef MD_EXEC_PREFIX
1406 #undef MD_STARTFILE_PREFIX
1407 #undef MD_STARTFILE_PREFIX_1
1410 #ifndef STANDARD_EXEC_PREFIX
1411 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1412 #endif /* !defined STANDARD_EXEC_PREFIX */
1414 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1415 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1416 #ifdef MD_EXEC_PREFIX
1417 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1420 #ifndef STANDARD_STARTFILE_PREFIX
1421 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1422 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1424 #ifdef MD_STARTFILE_PREFIX
1425 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1427 #ifdef MD_STARTFILE_PREFIX_1
1428 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1430 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1431 static char *standard_startfile_prefix_1
= "/lib/";
1432 static char *standard_startfile_prefix_2
= "/usr/lib/";
1434 #ifndef TOOLDIR_BASE_PREFIX
1435 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1437 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1438 static char *tooldir_prefix
;
1440 /* Subdirectory to use for locating libraries. Set by
1441 set_multilib_dir based on the compilation options. */
1443 static char *multilib_dir
;
1445 /* Clear out the vector of arguments (after a command is executed). */
1453 /* Add one argument to the vector at the end.
1454 This is done when a space is seen or at the end of the line.
1455 If DELETE_ALWAYS is nonzero, the arg is a filename
1456 and the file should be deleted eventually.
1457 If DELETE_FAILURE is nonzero, the arg is a filename
1458 and the file should be deleted if this compilation fails. */
1461 store_arg (arg
, delete_always
, delete_failure
)
1463 int delete_always
, delete_failure
;
1465 if (argbuf_index
+ 1 == argbuf_length
)
1467 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1470 argbuf
[argbuf_index
++] = arg
;
1471 argbuf
[argbuf_index
] = 0;
1473 if (delete_always
|| delete_failure
)
1474 record_temp_file (arg
, delete_always
, delete_failure
);
1477 /* Record the names of temporary files we tell compilers to write,
1478 and delete them at the end of the run. */
1480 /* This is the common prefix we use to make temp file names.
1481 It is chosen once for each run of this program.
1482 It is substituted into a spec by %g.
1483 Thus, all temp file names contain this prefix.
1484 In practice, all temp file names start with this prefix.
1486 This prefix comes from the envvar TMPDIR if it is defined;
1487 otherwise, from the P_tmpdir macro if that is defined;
1488 otherwise, in /usr/tmp or /tmp. */
1490 static char *temp_filename
;
1492 /* Length of the prefix. */
1494 static int temp_filename_length
;
1496 /* Define the list of temporary files to delete. */
1501 struct temp_file
*next
;
1504 /* Queue of files to delete on success or failure of compilation. */
1505 static struct temp_file
*always_delete_queue
;
1506 /* Queue of files to delete on failure of compilation. */
1507 static struct temp_file
*failure_delete_queue
;
1509 /* Record FILENAME as a file to be deleted automatically.
1510 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1511 otherwise delete it in any case.
1512 FAIL_DELETE nonzero means delete it if a compilation step fails;
1513 otherwise delete it in any case. */
1516 record_temp_file (filename
, always_delete
, fail_delete
)
1521 register char *name
;
1522 name
= xmalloc (strlen (filename
) + 1);
1523 strcpy (name
, filename
);
1527 register struct temp_file
*temp
;
1528 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1529 if (! strcmp (name
, temp
->name
))
1531 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1532 temp
->next
= always_delete_queue
;
1534 always_delete_queue
= temp
;
1540 register struct temp_file
*temp
;
1541 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1542 if (! strcmp (name
, temp
->name
))
1544 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1545 temp
->next
= failure_delete_queue
;
1547 failure_delete_queue
= temp
;
1552 /* Delete all the temporary files whose names we previously recorded. */
1555 delete_if_ordinary (name
)
1562 printf ("Delete %s? (y or n) ", name
);
1566 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1567 if (i
== 'y' || i
== 'Y')
1569 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1570 if (unlink (name
) < 0)
1572 perror_with_name (name
);
1576 delete_temp_files ()
1578 register struct temp_file
*temp
;
1580 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1581 delete_if_ordinary (temp
->name
);
1582 always_delete_queue
= 0;
1585 /* Delete all the files to be deleted on error. */
1588 delete_failure_queue ()
1590 register struct temp_file
*temp
;
1592 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1593 delete_if_ordinary (temp
->name
);
1597 clear_failure_queue ()
1599 failure_delete_queue
= 0;
1602 /* Compute a string to use as the base of all temporary file names.
1603 It is substituted for %g. */
1606 choose_temp_base_try (try, base
)
1613 else if (try == (char *)0)
1615 else if (access (try, R_OK
| W_OK
) != 0)
1628 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1629 base
= choose_temp_base_try (getenv ("TMP"), base
);
1630 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1633 base
= choose_temp_base_try (P_tmpdir
, base
);
1636 base
= choose_temp_base_try (concat4 (dir_separator_str
, "usr",
1637 dir_separator_str
, "tmp"),
1639 base
= choose_temp_base_try (concat (dir_separator_str
, "tmp"), base
);
1641 /* If all else fails, use the current directory! */
1642 if (base
== (char *)0) base
= concat(".", dir_separator_str
);
1644 len
= strlen (base
);
1645 temp_filename
= xmalloc (len
+ strlen (concat (dir_separator_str
,
1647 strcpy (temp_filename
, base
);
1648 if (len
> 0 && temp_filename
[len
-1] != '/'
1649 && temp_filename
[len
-1] != DIR_SEPARATOR
)
1650 temp_filename
[len
++] = DIR_SEPARATOR
;
1651 strcpy (temp_filename
+ len
, "ccXXXXXX");
1653 mktemp (temp_filename
);
1654 temp_filename_length
= strlen (temp_filename
);
1655 if (temp_filename_length
== 0)
1660 /* Routine to add variables to the environment. We do this to pass
1661 the pathname of the gcc driver, and the directories search to the
1662 collect2 program, which is being run as ld. This way, we can be
1663 sure of executing the right compiler when collect2 wants to build
1664 constructors and destructors. Since the environment variables we
1665 use come from an obstack, we don't have to worry about allocating
1674 #ifndef VMS /* nor about VMS */
1676 extern char **environ
;
1677 char **old_environ
= environ
;
1681 int str_len
= strlen (str
);
1685 while ((ch
= *p
++) != '\0' && ch
!= '=')
1691 /* Search for replacing an existing environment variable, and
1692 count the number of total environment variables. */
1693 for (envp
= old_environ
; *envp
; envp
++)
1696 if (!strncmp (str
, *envp
, name_len
))
1703 /* Add a new environment variable */
1704 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1706 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1707 sizeof (char *) * (num_envs
+1));
1712 #endif /* HAVE_PUTENV */
1715 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1718 putenv_from_prefixes (paths
, env_var
)
1719 struct path_prefix
*paths
;
1722 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1724 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1725 int first_time
= TRUE
;
1726 struct prefix_list
*pprefix
;
1728 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1730 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1732 int len
= strlen (pprefix
->prefix
);
1735 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1738 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1741 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1742 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1745 if (just_machine_suffix
1746 && pprefix
->require_machine_suffix
== 2
1747 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1750 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1753 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1754 obstack_grow (&collect_obstack
, just_machine_suffix
,
1758 if (!pprefix
->require_machine_suffix
)
1761 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1764 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1767 obstack_1grow (&collect_obstack
, '\0');
1768 putenv (obstack_finish (&collect_obstack
));
1772 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1773 access to check permissions.
1774 Return 0 if not found, otherwise return its name, allocated with malloc. */
1777 find_a_file (pprefix
, name
, mode
)
1778 struct path_prefix
*pprefix
;
1783 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1784 struct prefix_list
*pl
;
1785 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1788 len
+= strlen (machine_suffix
);
1790 temp
= xmalloc (len
);
1792 /* Determine the filename to execute (special case for absolute paths). */
1794 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1796 if (access (name
, mode
))
1798 strcpy (temp
, name
);
1803 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1807 /* Some systems have a suffix for executable files.
1808 So try appending that first. */
1809 if (file_suffix
[0] != 0)
1811 strcpy (temp
, pl
->prefix
);
1812 strcat (temp
, machine_suffix
);
1813 strcat (temp
, name
);
1814 strcat (temp
, file_suffix
);
1815 if (access (temp
, mode
) == 0)
1817 if (pl
->used_flag_ptr
!= 0)
1818 *pl
->used_flag_ptr
= 1;
1823 /* Now try just the name. */
1824 strcpy (temp
, pl
->prefix
);
1825 strcat (temp
, machine_suffix
);
1826 strcat (temp
, name
);
1827 if (access (temp
, mode
) == 0)
1829 if (pl
->used_flag_ptr
!= 0)
1830 *pl
->used_flag_ptr
= 1;
1835 /* Certain prefixes are tried with just the machine type,
1836 not the version. This is used for finding as, ld, etc. */
1837 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1839 /* Some systems have a suffix for executable files.
1840 So try appending that first. */
1841 if (file_suffix
[0] != 0)
1843 strcpy (temp
, pl
->prefix
);
1844 strcat (temp
, just_machine_suffix
);
1845 strcat (temp
, name
);
1846 strcat (temp
, file_suffix
);
1847 if (access (temp
, mode
) == 0)
1849 if (pl
->used_flag_ptr
!= 0)
1850 *pl
->used_flag_ptr
= 1;
1855 strcpy (temp
, pl
->prefix
);
1856 strcat (temp
, just_machine_suffix
);
1857 strcat (temp
, name
);
1858 if (access (temp
, mode
) == 0)
1860 if (pl
->used_flag_ptr
!= 0)
1861 *pl
->used_flag_ptr
= 1;
1866 /* Certain prefixes can't be used without the machine suffix
1867 when the machine or version is explicitly specified. */
1868 if (!pl
->require_machine_suffix
)
1870 /* Some systems have a suffix for executable files.
1871 So try appending that first. */
1872 if (file_suffix
[0] != 0)
1874 strcpy (temp
, pl
->prefix
);
1875 strcat (temp
, name
);
1876 strcat (temp
, file_suffix
);
1877 if (access (temp
, mode
) == 0)
1879 if (pl
->used_flag_ptr
!= 0)
1880 *pl
->used_flag_ptr
= 1;
1885 strcpy (temp
, pl
->prefix
);
1886 strcat (temp
, name
);
1887 if (access (temp
, mode
) == 0)
1889 if (pl
->used_flag_ptr
!= 0)
1890 *pl
->used_flag_ptr
= 1;
1900 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1901 at the start of the list, otherwise it goes at the end.
1903 If WARN is nonzero, we will warn if no file is found
1904 through this prefix. WARN should point to an int
1905 which will be set to 1 if this entry is used.
1907 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1908 the complete value of machine_suffix.
1909 2 means try both machine_suffix and just_machine_suffix. */
1912 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1913 struct path_prefix
*pprefix
;
1916 int require_machine_suffix
;
1919 struct prefix_list
*pl
, **prev
;
1922 if (!first
&& pprefix
->plist
)
1924 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1929 prev
= &pprefix
->plist
;
1931 /* Keep track of the longest prefix */
1933 len
= strlen (prefix
);
1934 if (len
> pprefix
->max_len
)
1935 pprefix
->max_len
= len
;
1937 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1938 pl
->prefix
= save_string (prefix
, len
);
1939 pl
->require_machine_suffix
= require_machine_suffix
;
1940 pl
->used_flag_ptr
= warn
;
1947 pl
->next
= (struct prefix_list
*) 0;
1951 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1954 unused_prefix_warnings (pprefix
)
1955 struct path_prefix
*pprefix
;
1957 struct prefix_list
*pl
= pprefix
->plist
;
1961 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1963 error ("file path prefix `%s' never used",
1965 /* Prevent duplicate warnings. */
1966 *pl
->used_flag_ptr
= 1;
1972 /* Get rid of all prefixes built up so far in *PLISTP. */
1975 free_path_prefix (pprefix
)
1976 struct path_prefix
*pprefix
;
1978 struct prefix_list
*pl
= pprefix
->plist
;
1979 struct prefix_list
*temp
;
1985 free (temp
->prefix
);
1986 free ((char *) temp
);
1988 pprefix
->plist
= (struct prefix_list
*) 0;
1991 /* stdin file number. */
1992 #define STDIN_FILE_NO 0
1994 /* stdout file number. */
1995 #define STDOUT_FILE_NO 1
1997 /* value of `pipe': port index for reading. */
2000 /* value of `pipe': port index for writing. */
2001 #define WRITE_PORT 1
2003 /* Pipe waiting from last process, to be used as input for the next one.
2004 Value is STDIN_FILE_NO if no pipe is waiting
2005 (i.e. the next command is the first of a group). */
2007 static int last_pipe_input
;
2009 /* Fork one piped subcommand. FUNC is the system call to use
2010 (either execv or execvp). ARGV is the arg vector to use.
2011 NOT_LAST is nonzero if this is not the last subcommand
2012 (i.e. its output should be piped to the next one.) */
2016 #include <process.h>
2018 pexecute (search_flag
, program
, argv
, not_last
)
2025 int i
= (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
2029 int i
, el
= search_flag
? 0 : 4;
2031 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
2032 rf
= scmd
+ strlen(program
) + 2 + el
;
2033 sprintf (scmd
, "%s%s @%s.gp", program
,
2034 (search_flag
? "" : ".exe"), temp_filename
);
2035 argfile
= fopen (rf
, "w");
2037 pfatal_with_name (rf
);
2039 for (i
=1; argv
[i
]; i
++)
2042 for (cp
= argv
[i
]; *cp
; cp
++)
2044 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
2045 fputc ('\\', argfile
);
2046 fputc (*cp
, argfile
);
2048 fputc ('\n', argfile
);
2059 perror_exec (program
);
2060 return MIN_FATAL_STATUS
<< 8;
2067 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2070 pexecute (search_flag
, program
, argv
, not_last
)
2076 int (*func
)() = (search_flag
? execv
: execvp
);
2079 int input_desc
= last_pipe_input
;
2080 int output_desc
= STDOUT_FILE_NO
;
2081 int retries
, sleep_interval
;
2083 /* If this isn't the last process, make a pipe for its output,
2084 and record it as waiting to be the input to the next process. */
2088 if (pipe (pdes
) < 0)
2089 pfatal_with_name ("pipe");
2090 output_desc
= pdes
[WRITE_PORT
];
2091 last_pipe_input
= pdes
[READ_PORT
];
2094 last_pipe_input
= STDIN_FILE_NO
;
2096 /* Fork a subprocess; wait and retry if it fails. */
2098 for (retries
= 0; retries
< 4; retries
++)
2103 sleep (sleep_interval
);
2104 sleep_interval
*= 2;
2111 pfatal_with_name ("fork");
2113 pfatal_with_name ("vfork");
2119 /* Move the input and output pipes into place, if nec. */
2120 if (input_desc
!= STDIN_FILE_NO
)
2122 close (STDIN_FILE_NO
);
2126 if (output_desc
!= STDOUT_FILE_NO
)
2128 close (STDOUT_FILE_NO
);
2130 close (output_desc
);
2133 /* Close the parent's descs that aren't wanted here. */
2134 if (last_pipe_input
!= STDIN_FILE_NO
)
2135 close (last_pipe_input
);
2137 /* Exec the program. */
2138 (*func
) (program
, argv
);
2139 perror_exec (program
);
2145 /* In the parent, after forking.
2146 Close the descriptors that we made for this child. */
2147 if (input_desc
!= STDIN_FILE_NO
)
2149 if (output_desc
!= STDOUT_FILE_NO
)
2150 close (output_desc
);
2152 /* Return child's process number. */
2157 #endif /* not __MSDOS__ and not OS2 and not WINNT */
2159 #if defined(OS2) || defined(WINNT)
2169 for (i
= 1; argvec
[i
] != 0; i
++)
2172 char *temp
, *newtemp
;
2175 len
= strlen (temp
);
2176 for (j
= 0; j
< len
; j
++)
2180 newtemp
= xmalloc (len
+ 2);
2181 strncpy (newtemp
, temp
, j
);
2183 strncpy (&newtemp
[j
+1], &temp
[j
], len
-j
);
2184 newtemp
[len
+1] = 0;
2198 #define FIX_ARGV(a) fix_argv(a)
2202 #define FIX_ARGV(a) a
2204 #endif /* OS2 or WINNT */
2207 pexecute (search_flag
, program
, argv
, not_last
)
2213 return (search_flag
? spawnv
: spawnvp
) (1, program
, FIX_ARGV (argv
));
2215 #endif /* OS2 or WINNT */
2218 /* Execute the command specified by the arguments on the current line of spec.
2219 When using pipes, this includes several piped-together commands
2220 with `|' between them.
2222 Return 0 if successful, -1 if failed. */
2228 int n_commands
; /* # of command. */
2232 char *prog
; /* program name. */
2233 char **argv
; /* vector of args. */
2234 int pid
; /* pid of process for this command. */
2237 struct command
*commands
; /* each command buffer with above info. */
2239 /* Count # of piped commands. */
2240 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2241 if (strcmp (argbuf
[i
], "|") == 0)
2244 /* Get storage for each command. */
2246 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2248 /* Split argbuf into its separate piped processes,
2249 and record info about each one.
2250 Also search for the programs that are to be run. */
2252 commands
[0].prog
= argbuf
[0]; /* first command. */
2253 commands
[0].argv
= &argbuf
[0];
2254 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2256 commands
[0].argv
[0] = string
;
2258 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2259 if (strcmp (argbuf
[i
], "|") == 0)
2260 { /* each command. */
2262 fatal ("-pipe not supported under MS-DOS");
2264 argbuf
[i
] = 0; /* termination of command args. */
2265 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2266 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2267 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2269 commands
[n_commands
].argv
[0] = string
;
2273 argbuf
[argbuf_index
] = 0;
2275 /* If -v, print what we are about to do, and maybe query. */
2279 /* Print each piped command as a separate line. */
2280 for (i
= 0; i
< n_commands
; i
++)
2284 for (j
= commands
[i
].argv
; *j
; j
++)
2285 fprintf (stderr
, " %s", *j
);
2287 /* Print a pipe symbol after all but the last command. */
2288 if (i
+ 1 != n_commands
)
2289 fprintf (stderr
, " |");
2290 fprintf (stderr
, "\n");
2294 fprintf (stderr
, "\nGo ahead? (y or n) ");
2298 while (getchar () != '\n') ;
2299 if (i
!= 'y' && i
!= 'Y')
2304 /* Run each piped subprocess. */
2306 last_pipe_input
= STDIN_FILE_NO
;
2307 for (i
= 0; i
< n_commands
; i
++)
2309 char *string
= commands
[i
].argv
[0];
2311 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2312 string
, commands
[i
].argv
,
2313 i
+ 1 < n_commands
);
2315 if (string
!= commands
[i
].prog
)
2321 /* Wait for all the subprocesses to finish.
2322 We don't care what order they finish in;
2323 we know that N_COMMANDS waits will get them all.
2324 Ignore subprocesses that we don't know about,
2325 since they can be spawned by the process that exec'ed us. */
2330 for (i
= 0; i
< n_commands
; )
2337 status
= pid
= commands
[i
].pid
;
2340 pid
= cwait (&status
, commands
[i
].pid
, WAIT_CHILD
);
2342 pid
= wait (&status
);
2348 for (j
= 0; j
< n_commands
; j
++)
2349 if (commands
[j
].pid
== pid
)
2354 if (WIFSIGNALED (status
))
2356 fatal ("Internal compiler error: program %s got fatal signal %d",
2357 commands
[j
].prog
, WTERMSIG (status
));
2361 else if (WIFEXITED (status
)
2362 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2372 /* Find all the switches given to us
2373 and make a vector describing them.
2374 The elements of the vector are strings, one per switch given.
2375 If a switch uses following arguments, then the `part1' field
2376 is the switch itself and the `args' field
2377 is a null-terminated vector containing the following arguments.
2378 The `live_cond' field is 1 if the switch is true in a conditional spec,
2379 -1 if false (overridden by a later switch), and is initialized to zero.
2380 The `valid' field is nonzero if any spec has looked at this switch;
2381 if it remains zero at the end of the run, it must be meaningless. */
2391 static struct switchstr
*switches
;
2393 static int n_switches
;
2401 /* Also a vector of input files specified. */
2403 static struct infile
*infiles
;
2405 static int n_infiles
;
2407 /* And a vector of corresponding output files is made up later. */
2409 static char **outfiles
;
2411 /* Create the vector `switches' and its contents.
2412 Store its length in `n_switches'. */
2415 process_command (argc
, argv
)
2421 char *spec_lang
= 0;
2422 int last_language_n_infiles
;
2424 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2429 /* Figure compiler version from version string. */
2431 compiler_version
= save_string (version_string
, strlen (version_string
));
2432 for (temp
= compiler_version
; *temp
; ++temp
)
2441 /* Set up the default search paths. */
2443 if (gcc_exec_prefix
)
2445 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2446 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2449 /* COMPILER_PATH and LIBRARY_PATH have values
2450 that are lists of directory names with colons. */
2452 temp
= getenv ("COMPILER_PATH");
2455 char *startp
, *endp
;
2456 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2458 startp
= endp
= temp
;
2461 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2463 strncpy (nstore
, startp
, endp
-startp
);
2465 strcpy (nstore
, concat (".", dir_separator_str
));
2466 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2468 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2469 nstore
[endp
-startp
+1] = 0;
2472 nstore
[endp
-startp
] = 0;
2473 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2476 endp
= startp
= endp
+ 1;
2483 temp
= getenv ("LIBRARY_PATH");
2484 if (temp
&& ! cross_compile
)
2486 char *startp
, *endp
;
2487 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2489 startp
= endp
= temp
;
2492 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2494 strncpy (nstore
, startp
, endp
-startp
);
2496 strcpy (nstore
, concat (".", dir_separator_str
));
2497 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2499 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2500 nstore
[endp
-startp
+1] = 0;
2503 nstore
[endp
-startp
] = 0;
2504 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2507 endp
= startp
= endp
+ 1;
2514 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2515 temp
= getenv ("LPATH");
2516 if (temp
&& ! cross_compile
)
2518 char *startp
, *endp
;
2519 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2521 startp
= endp
= temp
;
2524 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2526 strncpy (nstore
, startp
, endp
-startp
);
2528 strcpy (nstore
, concat (".", dir_separator_str
));
2529 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2531 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2532 nstore
[endp
-startp
+1] = 0;
2535 nstore
[endp
-startp
] = 0;
2536 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2539 endp
= startp
= endp
+ 1;
2546 /* Convert new-style -- options to old-style. */
2547 translate_options (&argc
, &argv
);
2549 /* Scan argv twice. Here, the first time, just count how many switches
2550 there will be in their vector, and how many input files in theirs.
2551 Here we also parse the switches that cc itself uses (e.g. -v). */
2553 for (i
= 1; i
< argc
; i
++)
2555 if (! strcmp (argv
[i
], "-dumpspecs"))
2557 printf ("*asm:\n%s\n\n", asm_spec
);
2558 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2559 printf ("*cpp:\n%s\n\n", cpp_spec
);
2560 printf ("*cc1:\n%s\n\n", cc1_spec
);
2561 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2562 printf ("*endfile:\n%s\n\n", endfile_spec
);
2563 printf ("*link:\n%s\n\n", link_spec
);
2564 printf ("*lib:\n%s\n\n", lib_spec
);
2565 printf ("*libgcc:\n%s\n\n", libgcc_spec
);
2566 printf ("*startfile:\n%s\n\n", startfile_spec
);
2567 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2568 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2569 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2570 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2571 printf ("*multilib:\n%s\n\n", multilib_select
);
2575 else if (! strcmp (argv
[i
], "-dumpversion"))
2577 printf ("%s\n", version_string
);
2580 else if (! strcmp (argv
[i
], "-dumpmachine"))
2582 printf ("%s\n", spec_machine
);
2585 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2586 print_file_name
= "libgcc.a";
2587 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2588 print_file_name
= argv
[i
] + 17;
2589 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2590 print_prog_name
= argv
[i
] + 17;
2591 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2592 print_multi_lib
= 1;
2593 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2594 print_multi_directory
= 1;
2595 else if (! strncmp (argv
[i
], "-Wa,", 4))
2598 /* Pass the rest of this option to the assembler. */
2600 n_assembler_options
++;
2601 if (!assembler_options
)
2603 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2606 = (char **) xrealloc (assembler_options
,
2607 n_assembler_options
* sizeof (char **));
2609 /* Split the argument at commas. */
2611 for (j
= 4; argv
[i
][j
]; j
++)
2612 if (argv
[i
][j
] == ',')
2614 assembler_options
[n_assembler_options
- 1]
2615 = save_string (argv
[i
] + prev
, j
- prev
);
2616 n_assembler_options
++;
2618 = (char **) xrealloc (assembler_options
,
2619 n_assembler_options
* sizeof (char **));
2622 /* Record the part after the last comma. */
2623 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2625 else if (! strncmp (argv
[i
], "-Wp,", 4))
2628 /* Pass the rest of this option to the preprocessor. */
2630 n_preprocessor_options
++;
2631 if (!preprocessor_options
)
2632 preprocessor_options
2633 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2635 preprocessor_options
2636 = (char **) xrealloc (preprocessor_options
,
2637 n_preprocessor_options
* sizeof (char **));
2639 /* Split the argument at commas. */
2641 for (j
= 4; argv
[i
][j
]; j
++)
2642 if (argv
[i
][j
] == ',')
2644 preprocessor_options
[n_preprocessor_options
- 1]
2645 = save_string (argv
[i
] + prev
, j
- prev
);
2646 n_preprocessor_options
++;
2647 preprocessor_options
2648 = (char **) xrealloc (preprocessor_options
,
2649 n_preprocessor_options
* sizeof (char **));
2652 /* Record the part after the last comma. */
2653 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2655 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2656 /* The +e options to the C++ front-end. */
2658 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2661 /* Split the argument at commas. */
2662 for (j
= 3; argv
[i
][j
]; j
++)
2663 n_infiles
+= (argv
[i
][j
] == ',');
2665 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2668 fatal ("argument to `-Xlinker' is missing");
2673 else if (strncmp (argv
[i
], "-l", 2) == 0)
2675 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2677 register char *p
= &argv
[i
][1];
2678 register int c
= *p
;
2683 if (p
[1] == 0 && i
+ 1 == argc
)
2684 fatal ("argument to `-b' is missing");
2686 spec_machine
= argv
[++i
];
2688 spec_machine
= p
+ 1;
2693 int *temp
= (int *) xmalloc (sizeof (int));
2695 if (p
[1] == 0 && i
+ 1 == argc
)
2696 fatal ("argument to `-B' is missing");
2701 add_prefix (&exec_prefixes
, value
, 1, 0, temp
);
2702 add_prefix (&startfile_prefixes
, value
, 1, 0, temp
);
2703 add_prefix (&include_prefixes
, concat (value
, "include"),
2706 /* As a kludge, if the arg is "[foo/]stageN/", just add
2707 "[foo/]include" to the include prefix. */
2709 int len
= strlen (value
);
2712 && (value
[len
- 8] == '/'
2713 || value
[len
- 8] == DIR_SEPARATOR
)))
2714 && strncmp (value
+ len
- 7, "stage", 5) == 0
2715 && isdigit (value
[len
- 2])
2716 && (value
[len
- 1] == '/'
2717 || value
[len
- 1] == DIR_SEPARATOR
))
2720 add_prefix (&include_prefixes
, "include", 1, 0, 0);
2723 char *string
= xmalloc (len
+ 1);
2724 strncpy (string
, value
, len
-7);
2725 strcat (string
, "include");
2726 add_prefix (&include_prefixes
, string
, 1, 0, 0);
2733 case 'v': /* Print our subcommands and print versions. */
2735 /* If they do anything other than exactly `-v', don't set
2736 verbose_flag; rather, continue on to give the error. */
2743 if (p
[1] == 0 && i
+ 1 == argc
)
2744 fatal ("argument to `-V' is missing");
2746 spec_version
= argv
[++i
];
2748 spec_version
= p
+ 1;
2749 compiler_version
= spec_version
;
2753 if (!strcmp (p
, "save-temps"))
2755 save_temps_flag
= 1;
2762 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2763 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2764 else if (WORD_SWITCH_TAKES_ARG (p
))
2765 i
+= WORD_SWITCH_TAKES_ARG (p
);
2772 /* Set up the search paths before we go looking for config files. */
2774 /* These come before the md prefixes so that we will find gcc's subcommands
2775 (such as cpp) rather than those of the host system. */
2776 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2777 as well as trying the machine and the version. */
2779 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2780 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2783 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2784 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2786 tooldir_prefix
= concat3 (tooldir_base_prefix
, spec_machine
,
2789 /* If tooldir is relative, base it on exec_prefixes. A relative
2790 tooldir lets us move the installed tree as a unit.
2792 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2793 directories, so that we can search both the user specified directory
2794 and the standard place. */
2796 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2798 if (gcc_exec_prefix
)
2800 char *gcc_exec_tooldir_prefix
2801 = concat6 (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2802 spec_version
, dir_separator_str
, tooldir_prefix
);
2804 add_prefix (&exec_prefixes
,
2805 concat3 (gcc_exec_tooldir_prefix
, "bin",
2808 add_prefix (&startfile_prefixes
,
2809 concat3 (gcc_exec_tooldir_prefix
, "lib",
2814 tooldir_prefix
= concat6 (standard_exec_prefix
, spec_machine
,
2815 dir_separator_str
, spec_version
,
2816 dir_separator_str
, tooldir_prefix
);
2819 add_prefix (&exec_prefixes
,
2820 concat3 (tooldir_prefix
, "bin", dir_separator_str
),
2822 add_prefix (&startfile_prefixes
,
2823 concat3 (tooldir_prefix
, "lib", dir_separator_str
),
2826 /* More prefixes are enabled in main, after we read the specs file
2827 and determine whether this is cross-compilation or not. */
2830 /* Then create the space for the vectors and scan again. */
2832 switches
= ((struct switchstr
*)
2833 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2834 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2837 last_language_n_infiles
= -1;
2839 /* This, time, copy the text of each switch and store a pointer
2840 to the copy in the vector of switches.
2841 Store all the infiles in their vector. */
2843 for (i
= 1; i
< argc
; i
++)
2845 /* Just skip the switches that were handled by the preceding loop. */
2846 if (! strncmp (argv
[i
], "-Wa,", 4))
2848 else if (! strncmp (argv
[i
], "-Wp,", 4))
2850 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2852 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2854 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2856 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2858 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2860 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2862 /* Compensate for the +e options to the C++ front-end;
2863 they're there simply for cfront call-compatibility. We do
2864 some magic in default_compilers to pass them down properly.
2865 Note we deliberately start at the `+' here, to avoid passing
2866 -e0 or -e1 down into the linker. */
2867 switches
[n_switches
].part1
= &argv
[i
][0];
2868 switches
[n_switches
].args
= 0;
2869 switches
[n_switches
].live_cond
= 0;
2870 switches
[n_switches
].valid
= 0;
2873 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2876 /* Split the argument at commas. */
2878 for (j
= 4; argv
[i
][j
]; j
++)
2879 if (argv
[i
][j
] == ',')
2881 infiles
[n_infiles
].language
= spec_lang
;
2882 infiles
[n_infiles
++].name
2883 = save_string (argv
[i
] + prev
, j
- prev
);
2886 /* Record the part after the last comma. */
2887 infiles
[n_infiles
].language
= spec_lang
;
2888 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2890 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2892 infiles
[n_infiles
].language
= spec_lang
;
2893 infiles
[n_infiles
++].name
= argv
[++i
];
2895 else if (strncmp (argv
[i
], "-l", 2) == 0)
2897 infiles
[n_infiles
].language
= spec_lang
;
2898 infiles
[n_infiles
++].name
= argv
[i
];
2900 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2902 register char *p
= &argv
[i
][1];
2903 register int c
= *p
;
2905 if (c
== 'B' || c
== 'b' || c
== 'V')
2907 /* Skip a separate arg, if any. */
2914 if (p
[1] == 0 && i
+ 1 == argc
)
2915 fatal ("argument to `-x' is missing");
2917 spec_lang
= argv
[++i
];
2920 if (! strcmp (spec_lang
, "none"))
2921 /* Suppress the warning if -xnone comes after the last input file,
2922 because alternate command interfaces like g++ might find it
2923 useful to place -xnone after each input file. */
2926 last_language_n_infiles
= n_infiles
;
2929 switches
[n_switches
].part1
= p
;
2930 /* Deal with option arguments in separate argv elements. */
2931 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2932 || WORD_SWITCH_TAKES_ARG (p
))
2935 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2939 /* Count only the option arguments in separate argv elements. */
2940 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2942 if (i
+ n_args
>= argc
)
2943 fatal ("argument to `-%s' is missing", p
);
2944 switches
[n_switches
].args
2945 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2947 switches
[n_switches
].args
[j
++] = argv
[++i
];
2948 /* Null-terminate the vector. */
2949 switches
[n_switches
].args
[j
] = 0;
2951 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2953 /* On some systems, ld cannot handle -o or -L without space.
2954 So split the -o or -L from its argument. */
2955 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2956 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2957 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2958 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2959 switches
[n_switches
].args
[1] = 0;
2962 switches
[n_switches
].args
= 0;
2964 switches
[n_switches
].live_cond
= 0;
2965 switches
[n_switches
].valid
= 0;
2966 /* This is always valid, since gcc.c itself understands it. */
2967 if (!strcmp (p
, "save-temps"))
2968 switches
[n_switches
].valid
= 1;
2973 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
2975 perror_with_name (argv
[i
]);
2980 infiles
[n_infiles
].language
= spec_lang
;
2981 infiles
[n_infiles
++].name
= argv
[i
];
2986 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2987 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2989 switches
[n_switches
].part1
= 0;
2990 infiles
[n_infiles
].name
= 0;
2992 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2993 if (gcc_exec_prefix
)
2995 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2996 + strlen (spec_machine
) + 3);
2997 strcpy (temp
, gcc_exec_prefix
);
2998 strcat (temp
, spec_machine
);
2999 strcat (temp
, dir_separator_str
);
3000 strcat (temp
, spec_version
);
3001 strcat (temp
, dir_separator_str
);
3002 gcc_exec_prefix
= temp
;
3006 /* Process a spec string, accumulating and running commands. */
3008 /* These variables describe the input file name.
3009 input_file_number is the index on outfiles of this file,
3010 so that the output file name can be stored for later use by %o.
3011 input_basename is the start of the part of the input file
3012 sans all directory names, and basename_length is the number
3013 of characters starting there excluding the suffix .c or whatever. */
3015 static char *input_filename
;
3016 static int input_file_number
;
3017 static int input_filename_length
;
3018 static int basename_length
;
3019 static char *input_basename
;
3020 static char *input_suffix
;
3022 /* These are variables used within do_spec and do_spec_1. */
3024 /* Nonzero if an arg has been started and not yet terminated
3025 (with space, tab or newline). */
3026 static int arg_going
;
3028 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3029 is a temporary file name. */
3030 static int delete_this_arg
;
3032 /* Nonzero means %w has been seen; the next arg to be terminated
3033 is the output file name of this compilation. */
3034 static int this_is_output_file
;
3036 /* Nonzero means %s has been seen; the next arg to be terminated
3037 is the name of a library file and we should try the standard
3038 search dirs for it. */
3039 static int this_is_library_file
;
3041 /* Nonzero means that the input of this command is coming from a pipe. */
3042 static int input_from_pipe
;
3044 /* Process the spec SPEC and run the commands specified therein.
3045 Returns 0 if the spec is successfully processed; -1 if failed. */
3055 delete_this_arg
= 0;
3056 this_is_output_file
= 0;
3057 this_is_library_file
= 0;
3058 input_from_pipe
= 0;
3060 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3062 /* Force out any unfinished command.
3063 If -pipe, this forces out the last command if it ended in `|'. */
3066 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3069 if (argbuf_index
> 0)
3076 /* Process the sub-spec SPEC as a portion of a larger spec.
3077 This is like processing a whole spec except that we do
3078 not initialize at the beginning and we do not supply a
3079 newline by default at the end.
3080 INSWITCH nonzero means don't process %-sequences in SPEC;
3081 in this case, % is treated as an ordinary character.
3082 This is used while substituting switches.
3083 INSWITCH nonzero also causes SPC not to terminate an argument.
3085 Value is zero unless a line was finished
3086 and the command on that line reported an error. */
3089 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3092 char *soft_matched_part
;
3094 register char *p
= spec
;
3101 /* If substituting a switch, treat all chars like letters.
3102 Otherwise, NL, SPC, TAB and % are special. */
3103 switch (inswitch
? 'a' : c
)
3106 /* End of line: finish any pending argument,
3107 then run the pending command if one has been started. */
3110 obstack_1grow (&obstack
, 0);
3111 string
= obstack_finish (&obstack
);
3112 if (this_is_library_file
)
3113 string
= find_file (string
);
3114 store_arg (string
, delete_this_arg
, this_is_output_file
);
3115 if (this_is_output_file
)
3116 outfiles
[input_file_number
] = string
;
3120 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3123 for (i
= 0; i
< n_switches
; i
++)
3124 if (!strcmp (switches
[i
].part1
, "pipe"))
3127 /* A `|' before the newline means use a pipe here,
3128 but only if -pipe was specified.
3129 Otherwise, execute now and don't pass the `|' as an arg. */
3132 input_from_pipe
= 1;
3133 switches
[i
].valid
= 1;
3140 if (argbuf_index
> 0)
3146 /* Reinitialize for a new command, and for a new argument. */
3149 delete_this_arg
= 0;
3150 this_is_output_file
= 0;
3151 this_is_library_file
= 0;
3152 input_from_pipe
= 0;
3156 /* End any pending argument. */
3159 obstack_1grow (&obstack
, 0);
3160 string
= obstack_finish (&obstack
);
3161 if (this_is_library_file
)
3162 string
= find_file (string
);
3163 store_arg (string
, delete_this_arg
, this_is_output_file
);
3164 if (this_is_output_file
)
3165 outfiles
[input_file_number
] = string
;
3169 obstack_1grow (&obstack
, c
);
3175 /* Space or tab ends an argument if one is pending. */
3178 obstack_1grow (&obstack
, 0);
3179 string
= obstack_finish (&obstack
);
3180 if (this_is_library_file
)
3181 string
= find_file (string
);
3182 store_arg (string
, delete_this_arg
, this_is_output_file
);
3183 if (this_is_output_file
)
3184 outfiles
[input_file_number
] = string
;
3186 /* Reinitialize for a new argument. */
3188 delete_this_arg
= 0;
3189 this_is_output_file
= 0;
3190 this_is_library_file
= 0;
3197 fatal ("Invalid specification! Bug in cc.");
3200 obstack_grow (&obstack
, input_basename
, basename_length
);
3205 delete_this_arg
= 2;
3208 /* Dump out the directories specified with LIBRARY_PATH,
3209 followed by the absolute directories
3210 that we search for startfiles. */
3213 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3215 char *buffer
= (char *) xmalloc (bufsize
);
3218 for (; pl
; pl
= pl
->next
)
3220 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3221 /* Used on systems which record the specified -L dirs
3222 and use them to search for dynamic linking. */
3223 /* Relative directories always come from -B,
3224 and it is better not to use them for searching
3225 at run time. In particular, stage1 loses */
3226 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3229 /* Try subdirectory if there is one. */
3230 if (multilib_dir
!= NULL
)
3234 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3236 bufsize
= (strlen (pl
->prefix
)
3237 + strlen (machine_suffix
)) * 2 + 1;
3238 buffer
= (char *) xrealloc (buffer
, bufsize
);
3239 strcpy (buffer
, pl
->prefix
);
3240 strcat (buffer
, machine_suffix
);
3241 if (is_directory (buffer
, multilib_dir
, 1))
3243 do_spec_1 ("-L", 0, NULL_PTR
);
3244 #ifdef SPACE_AFTER_L_OPTION
3245 do_spec_1 (" ", 0, NULL_PTR
);
3247 do_spec_1 (buffer
, 1, NULL_PTR
);
3248 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3249 /* Make this a separate argument. */
3250 do_spec_1 (" ", 0, NULL_PTR
);
3253 if (!pl
->require_machine_suffix
)
3255 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3257 do_spec_1 ("-L", 0, NULL_PTR
);
3258 #ifdef SPACE_AFTER_L_OPTION
3259 do_spec_1 (" ", 0, NULL_PTR
);
3261 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3262 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3263 /* Make this a separate argument. */
3264 do_spec_1 (" ", 0, NULL_PTR
);
3270 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3272 do_spec_1 ("-L", 0, NULL_PTR
);
3273 #ifdef SPACE_AFTER_L_OPTION
3274 do_spec_1 (" ", 0, NULL_PTR
);
3276 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3277 /* Remove slash from machine_suffix. */
3278 if (strlen (machine_suffix
) >= bufsize
)
3279 bufsize
= strlen (machine_suffix
) * 2 + 1;
3280 buffer
= (char *) xrealloc (buffer
, bufsize
);
3281 strcpy (buffer
, machine_suffix
);
3282 idx
= strlen (buffer
);
3283 if (buffer
[idx
- 1] == '/'
3284 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3285 buffer
[idx
- 1] = 0;
3286 do_spec_1 (buffer
, 1, NULL_PTR
);
3287 /* Make this a separate argument. */
3288 do_spec_1 (" ", 0, NULL_PTR
);
3291 if (!pl
->require_machine_suffix
)
3293 if (is_directory (pl
->prefix
, "", 1))
3295 do_spec_1 ("-L", 0, NULL_PTR
);
3296 #ifdef SPACE_AFTER_L_OPTION
3297 do_spec_1 (" ", 0, NULL_PTR
);
3299 /* Remove slash from pl->prefix. */
3300 if (strlen (pl
->prefix
) >= bufsize
)
3301 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3302 buffer
= (char *) xrealloc (buffer
, bufsize
);
3303 strcpy (buffer
, pl
->prefix
);
3304 idx
= strlen (buffer
);
3305 if (buffer
[idx
- 1] == '/'
3306 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3307 buffer
[idx
- 1] = 0;
3308 do_spec_1 (buffer
, 1, NULL_PTR
);
3309 /* Make this a separate argument. */
3310 do_spec_1 (" ", 0, NULL_PTR
);
3319 /* {...:%efoo} means report an error with `foo' as error message
3320 and don't execute any more commands for this file. */
3324 while (*p
!= 0 && *p
!= '\n') p
++;
3325 buf
= (char *) alloca (p
- q
+ 1);
3326 strncpy (buf
, q
, p
- q
);
3336 if (save_temps_flag
)
3338 obstack_grow (&obstack
, input_basename
, basename_length
);
3339 delete_this_arg
= 0;
3343 #ifdef MKTEMP_EACH_FILE
3344 /* ??? This has a problem: the total number of
3345 values mktemp can return is limited.
3346 That matters for the names of object files.
3347 In 2.4, do something about that. */
3348 struct temp_name
*t
;
3350 while (*p
== '.' || isalpha (*p
))
3353 /* See if we already have an association of %g/%u/%U and
3355 for (t
= temp_names
; t
; t
= t
->next
)
3356 if (t
->length
== p
- suffix
3357 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3358 && t
->unique
== (c
!= 'g'))
3361 /* Make a new association if needed. %u requires one. */
3362 if (t
== 0 || c
== 'u')
3366 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3367 t
->next
= temp_names
;
3370 t
->length
= p
- suffix
;
3371 t
->suffix
= save_string (suffix
, p
- suffix
);
3372 t
->unique
= (c
!= 'g');
3373 choose_temp_base ();
3374 t
->filename
= temp_filename
;
3375 t
->filename_length
= temp_filename_length
;
3378 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3379 delete_this_arg
= 1;
3381 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3382 if (c
== 'u' || c
== 'U')
3388 sprintf (buff
, "%d", unique
);
3389 obstack_grow (&obstack
, buff
, strlen (buff
));
3392 delete_this_arg
= 1;
3398 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3404 struct prefix_list
*pl
= include_prefixes
.plist
;
3406 if (gcc_exec_prefix
)
3408 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3409 /* Make this a separate argument. */
3410 do_spec_1 (" ", 0, NULL_PTR
);
3411 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3412 do_spec_1 (" ", 0, NULL_PTR
);
3415 for (; pl
; pl
= pl
->next
)
3417 do_spec_1 ("-isystem", 1, NULL_PTR
);
3418 /* Make this a separate argument. */
3419 do_spec_1 (" ", 0, NULL_PTR
);
3420 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3421 do_spec_1 (" ", 0, NULL_PTR
);
3429 for (f
= 0; f
< n_infiles
; f
++)
3430 store_arg (outfiles
[f
], 0, 0);
3435 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3440 this_is_library_file
= 1;
3444 this_is_output_file
= 1;
3449 int index
= argbuf_index
;
3450 /* Handle the {...} following the %W. */
3453 p
= handle_braces (p
+ 1);
3456 /* If any args were output, mark the last one for deletion
3458 if (argbuf_index
!= index
)
3459 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3463 /* %x{OPTION} records OPTION for %X to output. */
3469 /* Skip past the option value and make a copy. */
3474 string
= save_string (p1
+ 1, p
- p1
- 2);
3476 /* See if we already recorded this option. */
3477 for (i
= 0; i
< n_linker_options
; i
++)
3478 if (! strcmp (string
, linker_options
[i
]))
3484 /* This option is new; add it. */
3486 if (!linker_options
)
3488 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3491 = (char **) xrealloc (linker_options
,
3492 n_linker_options
* sizeof (char **));
3494 linker_options
[n_linker_options
- 1] = string
;
3498 /* Dump out the options accumulated previously using %x. */
3500 for (i
= 0; i
< n_linker_options
; i
++)
3502 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3503 /* Make each accumulated option a separate argument. */
3504 do_spec_1 (" ", 0, NULL_PTR
);
3508 /* Dump out the options accumulated previously using -Wa,. */
3510 for (i
= 0; i
< n_assembler_options
; i
++)
3512 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3513 /* Make each accumulated option a separate argument. */
3514 do_spec_1 (" ", 0, NULL_PTR
);
3518 /* Dump out the options accumulated previously using -Wp,. */
3520 for (i
= 0; i
< n_preprocessor_options
; i
++)
3522 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3523 /* Make each accumulated option a separate argument. */
3524 do_spec_1 (" ", 0, NULL_PTR
);
3528 /* Here are digits and numbers that just process
3529 a certain constant string as a spec. */
3532 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3538 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3544 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3550 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3556 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3562 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3568 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3574 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3580 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3586 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3593 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3597 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3601 if (! strncmp (y
, "-D", 2))
3602 /* Copy the whole option. */
3603 while (*y
&& *y
!= ' ' && *y
!= '\t')
3605 else if (*y
== ' ' || *y
== '\t')
3606 /* Copy whitespace to the result. */
3608 /* Don't copy other options. */
3615 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3623 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3627 /* Copy all of CPP_PREDEFINES into BUF,
3628 but put __ after every -D and at the end of each arg. */
3632 if (! strncmp (y
, "-D", 2))
3640 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3642 /* Stick __ at front of macro name. */
3645 /* Arrange to stick __ at the end as well. */
3649 /* Copy the macro name. */
3650 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3659 /* Copy the value given, if any. */
3660 while (*y
&& *y
!= ' ' && *y
!= '\t')
3663 else if (*y
== ' ' || *y
== '\t')
3664 /* Copy whitespace to the result. */
3666 /* Don't copy -A options */
3672 /* Copy all of CPP_PREDEFINES into BUF,
3673 but put __ after every -D. */
3677 if (! strncmp (y
, "-D", 2))
3682 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3684 /* Stick -D__ at front of macro name. */
3690 /* Copy the macro name. */
3691 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3694 /* Copy the value given, if any. */
3695 while (*y
&& *y
!= ' ' && *y
!= '\t')
3700 /* Do not copy this macro - we have just done it before */
3701 while (*y
&& *y
!= ' ' && *y
!= '\t')
3705 else if (*y
== ' ' || *y
== '\t')
3706 /* Copy whitespace to the result. */
3708 /* Don't copy -A options */
3714 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3718 if (! strncmp (y
, "-A", 2))
3719 /* Copy the whole option. */
3720 while (*y
&& *y
!= ' ' && *y
!= '\t')
3722 else if (*y
== ' ' || *y
== '\t')
3723 /* Copy whitespace to the result. */
3725 /* Don't copy other options. */
3732 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3739 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3744 /* Here we define characters other than letters and digits. */
3747 p
= handle_braces (p
);
3753 obstack_1grow (&obstack
, '%');
3757 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3758 do_spec_1 (" ", 0, NULL_PTR
);
3761 /* Process a string found as the value of a spec given by name.
3762 This feature allows individual machine descriptions
3763 to add and use their own specs.
3764 %[...] modifies -D options the way %P does;
3765 %(...) uses the spec unmodified. */
3770 struct spec_list
*sl
;
3773 /* The string after the S/P is the name of a spec that is to be
3775 while (*p
&& *p
!= ')' && *p
!= ']')
3778 /* See if it's in the list */
3779 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3780 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3790 value
= do_spec_1 (name
, 0, NULL_PTR
);
3796 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3800 /* Copy all of NAME into BUF, but put __ after
3801 every -D and at the end of each arg, */
3804 if (! strncmp (y
, "-D", 2))
3812 else if (*y
== ' ' || *y
== 0)
3826 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3832 /* Discard the closing paren or bracket. */
3840 int c1
= *p
++; /* Select first or second version number. */
3841 char *v
= compiler_version
;
3843 /* If desired, advance to second version number. */
3846 /* Set P after the first period. */
3847 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3852 /* Set Q at the next period or at the end. */
3854 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3856 /* Empty string means zero. */
3862 /* Put that part into the command. */
3863 obstack_grow (&obstack
, v
, q
- v
);
3869 if (input_from_pipe
)
3870 do_spec_1 ("-", 0, NULL_PTR
);
3879 /* Backslash: treat next character as ordinary. */
3884 /* Ordinary character: put it into the current argument. */
3885 obstack_1grow (&obstack
, c
);
3889 return 0; /* End of string */
3892 /* Return 0 if we call do_spec_1 and that returns -1. */
3905 /* A `|' after the open-brace means,
3906 if the test fails, output a single minus sign rather than nothing.
3907 This is used in %{|!pipe:...}. */
3911 /* A `!' after the open-brace negates the condition:
3912 succeed if the specified switch is not present. */
3916 /* A `.' after the open-brace means test against the current suffix. */
3926 while (*p
!= ':' && *p
!= '}') p
++;
3929 register int count
= 1;
3947 int found
= (input_suffix
!= 0
3948 && strlen (input_suffix
) == p
- filter
3949 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3955 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3960 else if (p
[-1] == '*' && p
[0] == '}')
3962 /* Substitute all matching switches as separate args. */
3965 for (i
= 0; i
< n_switches
; i
++)
3966 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3967 && check_live_switch (i
, p
- filter
))
3972 /* Test for presence of the specified switch. */
3976 /* If name specified ends in *, as in {x*:...},
3977 check for %* and handle that case. */
3978 if (p
[-1] == '*' && !negate
)
3983 /* First see whether we have %*. */
3987 if (*r
== '%' && r
[1] == '*')
3991 /* If we do, handle that case. */
3994 /* Substitute all matching switches as separate args.
3995 But do this by substituting for %*
3996 in the text that follows the colon. */
3998 unsigned hard_match_len
= p
- filter
- 1;
3999 char *string
= save_string (p
+ 1, q
- p
- 2);
4001 for (i
= 0; i
< n_switches
; i
++)
4002 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4003 && check_live_switch (i
, -1))
4005 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4006 /* Pass any arguments this switch has. */
4014 /* If name specified ends in *, as in {x*:...},
4015 check for presence of any switch name starting with x. */
4018 for (i
= 0; i
< n_switches
; i
++)
4020 unsigned hard_match_len
= p
- filter
- 1;
4022 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4023 && check_live_switch (i
, hard_match_len
))
4029 /* Otherwise, check for presence of exact name specified. */
4032 for (i
= 0; i
< n_switches
; i
++)
4034 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4035 && switches
[i
].part1
[p
- filter
] == 0
4036 && check_live_switch (i
, -1))
4044 /* If it is as desired (present for %{s...}, absent for %{-s...})
4045 then substitute either the switch or the specified
4046 conditional text. */
4047 if (present
!= negate
)
4055 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4061 /* Here if a %{|...} conditional fails: output a minus sign,
4062 which means "standard output" or "standard input". */
4063 do_spec_1 ("-", 0, NULL_PTR
);
4070 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4071 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4072 spec, or -1 if either exact match or %* is used.
4074 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4075 whose value does not begin with "no-" is obsoleted by the same value
4076 with the "no-", similarly for a switch with the "no-" prefix. */
4079 check_live_switch (switchnum
, prefix_length
)
4083 char *name
= switches
[switchnum
].part1
;
4086 /* In the common case of {<at-most-one-letter>*}, a negating
4087 switch would always match, so ignore that case. We will just
4088 send the conflicting switches to the compiler phase. */
4089 if (prefix_length
>= 0 && prefix_length
<= 1)
4092 /* If we already processed this switch and determined if it was
4093 live or not, return our past determination. */
4094 if (switches
[switchnum
].live_cond
!= 0)
4095 return switches
[switchnum
].live_cond
> 0;
4097 /* Now search for duplicate in a manner that depends on the name. */
4101 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4102 if (switches
[i
].part1
[0] == 'O')
4104 switches
[switchnum
].valid
= 1;
4105 switches
[switchnum
].live_cond
= -1;
4110 case 'W': case 'f': case 'm':
4111 if (! strncmp (name
+ 1, "no-", 3))
4113 /* We have Xno-YYY, search for XYYY. */
4114 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4115 if (switches
[i
].part1
[0] == name
[0]
4116 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4118 switches
[switchnum
].valid
= 1;
4119 switches
[switchnum
].live_cond
= -1;
4125 /* We have XYYY, search for Xno-YYY. */
4126 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4127 if (switches
[i
].part1
[0] == name
[0]
4128 && switches
[i
].part1
[1] == 'n'
4129 && switches
[i
].part1
[2] == 'o'
4130 && switches
[i
].part1
[3] == '-'
4131 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4133 switches
[switchnum
].valid
= 1;
4134 switches
[switchnum
].live_cond
= -1;
4141 /* Otherwise the switch is live. */
4142 switches
[switchnum
].live_cond
= 1;
4146 /* Pass a switch to the current accumulating command
4147 in the same form that we received it.
4148 SWITCHNUM identifies the switch; it is an index into
4149 the vector of switches gcc received, which is `switches'.
4150 This cannot fail since it never finishes a command line.
4152 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4155 give_switch (switchnum
, omit_first_word
)
4157 int omit_first_word
;
4159 if (!omit_first_word
)
4161 do_spec_1 ("-", 0, NULL_PTR
);
4162 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4164 do_spec_1 (" ", 0, NULL_PTR
);
4165 if (switches
[switchnum
].args
!= 0)
4168 for (p
= switches
[switchnum
].args
; *p
; p
++)
4170 do_spec_1 (*p
, 1, NULL_PTR
);
4171 do_spec_1 (" ", 0, NULL_PTR
);
4174 switches
[switchnum
].valid
= 1;
4177 /* Search for a file named NAME trying various prefixes including the
4178 user's -B prefix and some standard ones.
4179 Return the absolute file name found. If nothing is found, return NAME. */
4187 /* Try multilib_dir if it is defined. */
4188 if (multilib_dir
!= NULL
)
4192 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4193 strcpy (try, multilib_dir
);
4194 strcat (try, dir_separator_str
);
4197 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4199 /* If we don't find it in the multi library dir, then fall
4200 through and look for it in the normal places. */
4201 if (newname
!= NULL
)
4205 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4206 return newname
? newname
: name
;
4209 /* Determine whether a directory exists. If LINKER, return 0 for
4210 certain fixed names not needed by the linker. If not LINKER, it is
4211 only important to return 0 if the host machine has a small ARG_MAX
4215 is_directory (path1
, path2
, linker
)
4220 int len1
= strlen (path1
);
4221 int len2
= strlen (path2
);
4222 char *path
= (char *) alloca (3 + len1
+ len2
);
4226 #ifndef SMALL_ARG_MAX
4231 /* Construct the path from the two parts. Ensure the string ends with "/.".
4232 The resulting path will be a directory even if the given path is a
4234 bcopy (path1
, path
, len1
);
4235 bcopy (path2
, path
+ len1
, len2
);
4236 cp
= path
+ len1
+ len2
;
4237 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4238 *cp
++ = DIR_SEPARATOR
;
4242 /* Exclude directories that the linker is known to search. */
4245 && strcmp (path
, concat4 (dir_separator_str
, "lib",
4246 dir_separator_str
, ".")) == 0)
4248 && strcmp (path
, concat6 (dir_separator_str
, "usr",
4249 dir_separator_str
, "lib",
4250 dir_separator_str
, ".")) == 0)))
4253 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4256 /* On fatal signals, delete all the temporary files. */
4259 fatal_error (signum
)
4262 signal (signum
, SIG_DFL
);
4263 delete_failure_queue ();
4264 delete_temp_files ();
4265 /* Get the same signal again, this time not handled,
4266 so its normal effect occurs. */
4267 kill (getpid (), signum
);
4278 int linker_was_run
= 0;
4279 char *explicit_link_files
;
4283 p
= argv
[0] + strlen (argv
[0]);
4284 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4287 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4288 signal (SIGINT
, fatal_error
);
4290 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4291 signal (SIGHUP
, fatal_error
);
4293 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4294 signal (SIGTERM
, fatal_error
);
4296 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4297 signal (SIGPIPE
, fatal_error
);
4301 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4303 obstack_init (&obstack
);
4305 /* Set up to remember the pathname of gcc and any options
4306 needed for collect. We use argv[0] instead of programname because
4307 we need the complete pathname. */
4308 obstack_init (&collect_obstack
);
4309 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4310 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4311 putenv (obstack_finish (&collect_obstack
));
4313 /* Choose directory for temp files. */
4315 choose_temp_base ();
4317 /* Make a table of what switches there are (switches, n_switches).
4318 Make a table of specified input files (infiles, n_infiles).
4319 Decode switches that are handled locally. */
4321 process_command (argc
, argv
);
4323 /* Initialize the vector of specs to just the default.
4324 This means one element containing 0s, as a terminator. */
4326 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4327 bcopy ((char *) default_compilers
, (char *) compilers
,
4328 sizeof default_compilers
);
4329 n_compilers
= n_default_compilers
;
4331 /* Read specs from a file if there is one. */
4333 machine_suffix
= concat4 (spec_machine
, dir_separator_str
,
4334 spec_version
, dir_separator_str
);
4335 just_machine_suffix
= concat (spec_machine
, dir_separator_str
);
4337 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4338 /* Read the specs file unless it is a default one. */
4339 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4340 read_specs (specs_file
);
4342 /* If not cross-compiling, look for startfiles in the standard places. */
4343 /* The fact that these are done here, after reading the specs file,
4344 means that it cannot be found in these directories.
4345 But that's okay. It should never be there anyway. */
4348 #ifdef MD_EXEC_PREFIX
4349 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4350 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4353 #ifdef MD_STARTFILE_PREFIX
4354 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4357 #ifdef MD_STARTFILE_PREFIX_1
4358 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4361 /* If standard_startfile_prefix is relative, base it on
4362 standard_exec_prefix. This lets us move the installed tree
4363 as a unit. If GCC_EXEC_PREFIX is defined, base
4364 standard_startfile_prefix on that as well. */
4365 if (*standard_startfile_prefix
== '/'
4366 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4367 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4371 if (gcc_exec_prefix
)
4372 add_prefix (&startfile_prefixes
,
4373 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4375 add_prefix (&startfile_prefixes
,
4376 concat3 (standard_exec_prefix
,
4378 standard_startfile_prefix
),
4382 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4384 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4386 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4387 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4391 /* Now we have the specs.
4392 Set the `valid' bits for switches that match anything in any spec. */
4394 validate_all_switches ();
4396 /* Now that we have the switches and the specs, set
4397 the subdirectory based on the options. */
4398 set_multilib_dir ();
4400 /* Warn about any switches that no pass was interested in. */
4402 for (i
= 0; i
< n_switches
; i
++)
4403 if (! switches
[i
].valid
)
4404 error ("unrecognized option `-%s'", switches
[i
].part1
);
4406 /* Obey some of the options. */
4408 if (print_file_name
)
4410 printf ("%s\n", find_file (print_file_name
));
4414 if (print_prog_name
)
4416 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4417 printf ("%s\n", (newname
? newname
: print_prog_name
));
4421 if (print_multi_lib
)
4423 print_multilib_info ();
4427 if (print_multi_directory
)
4429 if (multilib_dir
== NULL
)
4432 printf ("%s\n", multilib_dir
);
4438 if (! strcmp (version_string
, compiler_version
))
4439 fprintf (stderr
, "gcc version %s\n", version_string
);
4441 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4442 version_string
, compiler_version
);
4449 fatal ("No input files");
4451 /* Make a place to record the compiler output file names
4452 that correspond to the input files. */
4454 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4455 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4457 /* Record which files were specified explicitly as link input. */
4459 explicit_link_files
= xmalloc (n_infiles
);
4460 bzero (explicit_link_files
, n_infiles
);
4462 for (i
= 0; i
< n_infiles
; i
++)
4464 register struct compiler
*cp
= 0;
4465 int this_file_error
= 0;
4467 /* Tell do_spec what to substitute for %i. */
4469 input_filename
= infiles
[i
].name
;
4470 input_filename_length
= strlen (input_filename
);
4471 input_file_number
= i
;
4473 /* Use the same thing in %o, unless cp->spec says otherwise. */
4475 outfiles
[i
] = input_filename
;
4477 /* Figure out which compiler from the file's suffix. */
4479 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4480 infiles
[i
].language
);
4484 /* Ok, we found an applicable compiler. Run its spec. */
4485 /* First say how much of input_filename to substitute for %b */
4489 input_basename
= input_filename
;
4490 for (p
= input_filename
; *p
; p
++)
4491 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4492 input_basename
= p
+ 1;
4494 /* Find a suffix starting with the last period,
4495 and set basename_length to exclude that suffix. */
4496 basename_length
= strlen (input_basename
);
4497 p
= input_basename
+ basename_length
;
4498 while (p
!= input_basename
&& *p
!= '.') --p
;
4499 if (*p
== '.' && p
!= input_basename
)
4501 basename_length
= p
- input_basename
;
4502 input_suffix
= p
+ 1;
4508 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4510 len
+= strlen (cp
->spec
[j
]);
4512 p
= (char *) xmalloc (len
+ 1);
4515 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4518 strcpy (p
+ len
, cp
->spec
[j
]);
4519 len
+= strlen (cp
->spec
[j
]);
4522 value
= do_spec (p
);
4525 this_file_error
= 1;
4528 /* If this file's name does not contain a recognized suffix,
4529 record it as explicit linker input. */
4532 explicit_link_files
[i
] = 1;
4534 /* Clear the delete-on-failure queue, deleting the files in it
4535 if this compilation failed. */
4537 if (this_file_error
)
4539 delete_failure_queue ();
4542 /* If this compilation succeeded, don't delete those files later. */
4543 clear_failure_queue ();
4546 /* Run ld to link all the compiler output files. */
4548 if (error_count
== 0)
4550 int tmp
= execution_count
;
4554 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4556 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4557 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4559 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4561 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4562 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4565 for (i
= 0; i
< n_switches
; i
++)
4569 obstack_grow (&collect_obstack
, " ", 1);
4572 obstack_grow (&collect_obstack
, "-", 1);
4573 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4574 strlen (switches
[i
].part1
));
4576 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4578 obstack_grow (&collect_obstack
, " ", 1);
4579 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4582 obstack_grow (&collect_obstack
, "\0", 1);
4583 putenv (obstack_finish (&collect_obstack
));
4585 value
= do_spec (link_command_spec
);
4588 linker_was_run
= (tmp
!= execution_count
);
4591 /* Warn if a -B option was specified but the prefix was never used. */
4592 unused_prefix_warnings (&exec_prefixes
);
4593 unused_prefix_warnings (&startfile_prefixes
);
4595 /* If options said don't run linker,
4596 complain about input files to be given to the linker. */
4598 if (! linker_was_run
&& error_count
== 0)
4599 for (i
= 0; i
< n_infiles
; i
++)
4600 if (explicit_link_files
[i
])
4601 error ("%s: linker input file unused since linking not done",
4604 /* Delete some or all of the temporary files we made. */
4607 delete_failure_queue ();
4608 delete_temp_files ();
4610 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4615 /* Find the proper compilation spec for the file name NAME,
4616 whose length is LENGTH. LANGUAGE is the specified language,
4617 or 0 if none specified. */
4619 static struct compiler
*
4620 lookup_compiler (name
, length
, language
)
4625 struct compiler
*cp
;
4627 /* Look for the language, if one is spec'd. */
4630 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4634 if (cp
->suffix
[0] == '@'
4635 && !strcmp (cp
->suffix
+ 1, language
))
4639 error ("language %s not recognized", language
);
4642 /* Look for a suffix. */
4643 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4645 if (/* The suffix `-' matches only the file name `-'. */
4646 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4648 (strlen (cp
->suffix
) < length
4649 /* See if the suffix matches the end of NAME. */
4651 && (!strcmp (cp
->suffix
,
4652 name
+ length
- strlen (cp
->suffix
))
4653 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4654 && !strcasecmp (cp
->suffix
,
4655 name
+ length
- strlen (cp
->suffix
)))))
4657 && !strcmp (cp
->suffix
,
4658 name
+ length
- strlen (cp
->suffix
))))
4661 if (cp
->spec
[0][0] == '@')
4663 struct compiler
*new;
4664 /* An alias entry maps a suffix to a language.
4665 Search for the language; pass 0 for NAME and LENGTH
4666 to avoid infinite recursion if language not found.
4667 Construct the new compiler spec. */
4668 language
= cp
->spec
[0] + 1;
4669 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4670 new->suffix
= cp
->suffix
;
4671 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4672 (char *) new->spec
, sizeof new->spec
);
4675 /* A non-alias entry: return it. */
4687 register char *value
= (char *) malloc (size
);
4689 fatal ("virtual memory exhausted");
4694 xrealloc (ptr
, size
)
4698 register char *value
= (char *) realloc (ptr
, size
);
4700 fatal ("virtual memory exhausted");
4704 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4710 int len1
= strlen (s1
);
4711 int len2
= strlen (s2
);
4712 char *result
= xmalloc (len1
+ len2
+ 1);
4714 strcpy (result
, s1
);
4715 strcpy (result
+ len1
, s2
);
4716 *(result
+ len1
+ len2
) = 0;
4722 concat3 (s1
, s2
, s3
)
4725 return concat (concat (s1
, s2
), s3
);
4729 concat4 (s1
, s2
, s3
, s4
)
4730 char *s1
, *s2
, *s3
, *s4
;
4732 return concat (concat (s1
, s2
), concat (s3
, s4
));
4736 concat6 (s1
, s2
, s3
, s4
, s5
, s6
)
4737 char *s1
, *s2
, *s3
, *s4
, *s5
, *s6
;
4739 return concat3 (concat (s1
, s2
), concat (s3
, s4
), concat (s5
, s6
));
4743 save_string (s
, len
)
4747 register char *result
= xmalloc (len
+ 1);
4749 bcopy (s
, result
, len
);
4755 pfatal_with_name (name
)
4760 if (errno
< sys_nerr
)
4761 s
= concat ("%s: ", sys_errlist
[errno
]);
4763 s
= "cannot open %s";
4768 perror_with_name (name
)
4773 if (errno
< sys_nerr
)
4774 s
= concat ("%s: ", sys_errlist
[errno
]);
4776 s
= "cannot open %s";
4786 if (errno
< sys_nerr
)
4787 s
= concat ("installation problem, cannot exec %s: ", sys_errlist
[errno
]);
4789 s
= "installation problem, cannot exec %s";
4793 /* More 'friendly' abort that prints the line and file.
4794 config.h can #define abort fancy_abort if you like that sort of thing. */
4799 fatal ("Internal gcc abort.");
4804 /* Output an error message and exit */
4807 fatal
VPROTO((char *format
, ...))
4814 VA_START (ap
, format
);
4817 format
= va_arg (ap
, char*);
4820 fprintf (stderr
, "%s: ", programname
);
4821 vfprintf (stderr
, format
, ap
);
4823 fprintf (stderr
, "\n");
4824 delete_temp_files ();
4829 error
VPROTO((char *format
, ...))
4836 VA_START (ap
, format
);
4839 format
= va_arg (ap
, char*);
4842 fprintf (stderr
, "%s: ", programname
);
4843 vfprintf (stderr
, format
, ap
);
4846 fprintf (stderr
, "\n");
4849 #else /* not HAVE_VPRINTF */
4852 fatal (msg
, arg1
, arg2
)
4853 char *msg
, *arg1
, *arg2
;
4855 error (msg
, arg1
, arg2
);
4856 delete_temp_files ();
4861 error (msg
, arg1
, arg2
)
4862 char *msg
, *arg1
, *arg2
;
4864 fprintf (stderr
, "%s: ", programname
);
4865 fprintf (stderr
, msg
, arg1
, arg2
);
4866 fprintf (stderr
, "\n");
4869 #endif /* not HAVE_VPRINTF */
4873 validate_all_switches ()
4875 struct compiler
*comp
;
4878 struct spec_list
*spec
;
4880 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4883 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4887 if (c
== '%' && *p
== '{')
4888 /* We have a switch spec. */
4889 validate_switches (p
+ 1);
4893 /* look through the linked list of extra specs read from the specs file */
4894 for (spec
= specs
; spec
; spec
= spec
->next
)
4898 if (c
== '%' && *p
== '{')
4899 /* We have a switch spec. */
4900 validate_switches (p
+ 1);
4903 p
= link_command_spec
;
4905 if (c
== '%' && *p
== '{')
4906 /* We have a switch spec. */
4907 validate_switches (p
+ 1);
4909 /* Now notice switches mentioned in the machine-specific specs. */
4913 if (c
== '%' && *p
== '{')
4914 /* We have a switch spec. */
4915 validate_switches (p
+ 1);
4919 if (c
== '%' && *p
== '{')
4920 /* We have a switch spec. */
4921 validate_switches (p
+ 1);
4925 if (c
== '%' && *p
== '{')
4926 /* We have a switch spec. */
4927 validate_switches (p
+ 1);
4929 p
= signed_char_spec
;
4931 if (c
== '%' && *p
== '{')
4932 /* We have a switch spec. */
4933 validate_switches (p
+ 1);
4937 if (c
== '%' && *p
== '{')
4938 /* We have a switch spec. */
4939 validate_switches (p
+ 1);
4943 if (c
== '%' && *p
== '{')
4944 /* We have a switch spec. */
4945 validate_switches (p
+ 1);
4949 if (c
== '%' && *p
== '{')
4950 /* We have a switch spec. */
4951 validate_switches (p
+ 1);
4955 if (c
== '%' && *p
== '{')
4956 /* We have a switch spec. */
4957 validate_switches (p
+ 1);
4961 if (c
== '%' && *p
== '{')
4962 /* We have a switch spec. */
4963 validate_switches (p
+ 1);
4967 if (c
== '%' && *p
== '{')
4968 /* We have a switch spec. */
4969 validate_switches (p
+ 1);
4972 /* Look at the switch-name that comes after START
4973 and mark as valid all supplied switches that match it. */
4976 validate_switches (start
)
4979 register char *p
= start
;
4994 while (*p
!= ':' && *p
!= '}') p
++;
4998 else if (p
[-1] == '*')
5000 /* Mark all matching switches as valid. */
5002 for (i
= 0; i
< n_switches
; i
++)
5003 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5004 switches
[i
].valid
= 1;
5008 /* Mark an exact matching switch as valid. */
5009 for (i
= 0; i
< n_switches
; i
++)
5011 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5012 && switches
[i
].part1
[p
- filter
] == 0)
5013 switches
[i
].valid
= 1;
5018 /* Check whether a particular argument was used. */
5027 for (i
= 0; i
< n_switches
; i
++)
5028 if (! strncmp (switches
[i
].part1
, p
, len
)
5029 && strlen (switches
[i
].part1
) == len
)
5034 /* Work out the subdirectory to use based on the
5035 options. The format of multilib_select is a list of elements.
5036 Each element is a subdirectory name followed by a list of options
5037 followed by a semicolon. gcc will consider each line in turn. If
5038 none of the options beginning with an exclamation point are
5039 present, and all of the other options are present, that
5040 subdirectory will be used. */
5045 char *p
= multilib_select
;
5047 char *this_path
, *this_arg
;
5052 /* Ignore newlines. */
5059 /* Get the initial path. */
5067 this_path_len
= p
- this_path
;
5069 /* Check the arguments. */
5084 while (*p
!= ' ' && *p
!= ';')
5091 if (*this_arg
== '!')
5092 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
5094 failed
= ! used_arg (this_arg
, p
- this_arg
);
5102 if (this_path_len
!= 1
5103 || this_path
[0] != '.')
5105 multilib_dir
= xmalloc (this_path_len
+ 1);
5106 strncpy (multilib_dir
, this_path
, this_path_len
);
5107 multilib_dir
[this_path_len
] = '\0';
5116 /* Print out the multiple library subdirectory selection
5117 information. This prints out a series of lines. Each line looks
5118 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5119 required. Only the desired options are printed out, the negative
5120 matches. The options are print without a leading dash. There are
5121 no spaces to make it easy to use the information in the shell.
5122 Each subdirectory is printed only once. This assumes the ordering
5123 generated by the genmultilib script. */
5126 print_multilib_info ()
5128 char *p
= multilib_select
;
5129 char *last_path
, *this_path
;
5131 int last_path_len
= 0;
5135 /* Ignore newlines. */
5142 /* Get the initial path. */
5151 /* If this is a duplicate, skip it. */
5152 skip
= (p
- this_path
== last_path_len
5153 && ! strncmp (last_path
, this_path
, last_path_len
));
5155 last_path
= this_path
;
5156 last_path_len
= p
- this_path
;
5162 for (p1
= last_path
; p1
< p
; p1
++)
5181 use_arg
= *p
!= '!';
5186 while (*p
!= ' ' && *p
!= ';')