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 directories gcc will search through looking for
188 programs, libraries, etc. */
190 static int print_search_dirs;
192 /* Flag saying to print the full filename of this file
193 as found through our usual search mechanism. */
195 static char *print_file_name = NULL;
197 /* As print_file_name, but search for executable file. */
199 static char *print_prog_name = NULL;
201 /* Flag saying to print the relative path we'd use to
202 find libgcc.a given the current compiler flags. */
204 static int print_multi_directory;
206 /* Flag saying to print the list of subdirectories and
207 compiler flags used to select them in a standard form. */
209 static int print_multi_lib;
211 /* Flag indicating whether we should print the command and arguments */
213 static int verbose_flag;
215 /* Nonzero means write "temp" files in source directory
216 and use the source file's name in them, and don't delete them. */
218 static int save_temps_flag;
220 /* The compiler version. */
222 static char *compiler_version;
224 /* The target version specified with -V */
226 static char *spec_version = DEFAULT_TARGET_VERSION;
228 /* The target machine specified with -b. */
230 static char *spec_machine = DEFAULT_TARGET_MACHINE;
232 /* Nonzero if cross-compiling.
233 When -b is used, the value comes from the `specs' file. */
236 static int cross_compile = 1;
238 static int cross_compile = 0;
241 /* The number of errors that have occurred; the link phase will not be
242 run if this is non-zero. */
243 static int error_count = 0;
245 /* This is the obstack which we use to allocate many strings. */
247 static struct obstack obstack;
249 /* This is the obstack to build an environment variable to pass to
250 collect2 that describes all of the relevant switches of what to
251 pass the compiler in building the list of pointers to constructors
254 static struct obstack collect_obstack;
256 extern char *version_string;
258 /* Forward declaration for prototypes. */
261 static void set_spec PROTO((char *, char *));
262 static struct compiler *lookup_compiler PROTO((char *, int, char *));
263 static char *build_search_list PROTO((struct path_prefix *, char *, int));
264 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
265 static char *find_a_file PROTO((struct path_prefix *, char *, int));
266 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
267 static char *skip_whitespace PROTO((char *));
268 static void record_temp_file PROTO((char *, int, int));
269 static void delete_if_ordinary PROTO((char *));
270 static void delete_temp_files PROTO((void));
271 static void delete_failure_queue PROTO((void));
272 static void clear_failure_queue PROTO((void));
273 static char *choose_temp_base_try PROTO((char *, char *));
274 static void choose_temp_base PROTO((void));
275 static int check_live_switch PROTO((int, int));
276 static char *handle_braces PROTO((char *));
277 static char *save_string PROTO((char *, int));
278 static char *concat PROTO((char *, char *));
279 static char *concat3 PROTO((char *, char *, char *));
280 static char *concat4 PROTO((char *, char *, char *, char *));
281 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
283 static int do_spec PROTO((char *));
284 static int do_spec_1 PROTO((char *, int, char *));
285 static char *find_file PROTO((char *));
286 static int is_directory PROTO((char *, char *, int));
287 static void validate_switches PROTO((char *));
288 static void validate_all_switches PROTO((void));
289 static void give_switch PROTO((int, int));
290 static int used_arg PROTO((char *, int));
291 static void set_multilib_dir PROTO((void));
292 static void print_multilib_info PROTO((void));
293 static void pfatal_with_name PROTO((char *));
294 static void perror_with_name PROTO((char *));
295 static void perror_exec PROTO((char *));
297 static void fatal PVPROTO((char *, ...));
298 static void error PVPROTO((char *, ...));
300 /* We must not provide any prototype here, even if ANSI C. */
301 static void fatal PROTO(());
302 static void error PROTO(());
309 /* Specs are strings containing lines, each of which (if not blank)
310 is made up of a program name, and arguments separated by spaces.
311 The program name must be exact and start from root, since no path
312 is searched and it is unreliable to depend on the current working directory.
313 Redirection of input or output is not supported; the subprograms must
314 accept filenames saying what files to read and write.
316 In addition, the specs can contain %-sequences to substitute variable text
317 or for conditional text. Here is a table of all defined %-sequences.
318 Note that spaces are not generated automatically around the results of
319 expanding these sequences; therefore, you can concatenate them together
320 or with constant text in a single argument.
322 %% substitute one % into the program name or argument.
323 %i substitute the name of the input file being processed.
324 %b substitute the basename of the input file being processed.
325 This is the substring up to (and not including) the last period
326 and not including the directory.
327 %g substitute the temporary-file-name-base. This is a string chosen
328 once per compilation. Different temporary file names are made by
329 concatenation of constant strings on the end, as in `%g.s'.
330 %g also has the same effect of %d.
331 %u like %g, but make the temporary file name unique.
332 %U returns the last file name generated with %u.
333 %d marks the argument containing or following the %d as a
334 temporary file name, so that that file will be deleted if CC exits
335 successfully. Unlike %g, this contributes no text to the argument.
336 %w marks the argument containing or following the %w as the
337 "output file" of this compilation. This puts the argument
338 into the sequence of arguments that %o will substitute later.
340 like %{...} but mark last argument supplied within
341 as a file to be deleted on failure.
342 %o substitutes the names of all the output files, with spaces
343 automatically placed around them. You should write spaces
344 around the %o as well or the results are undefined.
345 %o is for use in the specs for running the linker.
346 Input files whose names have no recognized suffix are not compiled
347 at all, but they are included among the output files, so they will
349 %O substitutes the suffix for object files.
350 %p substitutes the standard macro predefinitions for the
351 current target machine. Use this when running cpp.
352 %P like %p, but puts `__' before and after the name of each macro.
353 (Except macros that already have __.)
355 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
356 %s current argument is the name of a library or startup file of some sort.
357 Search for that file in a standard list of directories
358 and substitute the full name found.
359 %eSTR Print STR as an error message. STR is terminated by a newline.
360 Use this when inconsistent options are detected.
361 %x{OPTION} Accumulate an option for %X.
362 %X Output the accumulated linker options specified by compilations.
363 %Y Output the accumulated assembler options specified by compilations.
364 %Z Output the accumulated preprocessor options specified by compilations.
365 %v1 Substitute the major version number of GCC.
366 (For version 2.5.n, this is 2.)
367 %v2 Substitute the minor version number of GCC.
368 (For version 2.5.n, this is 5.)
369 %a process ASM_SPEC as a spec.
370 This allows config.h to specify part of the spec for running as.
371 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
372 used here. This can be used to run a post-processor after the
373 assembler has done it's job.
374 %D Dump out a -L option for each directory in startfile_prefixes.
375 If multilib_dir is set, extra entries are generated with it affixed.
376 %l process LINK_SPEC as a spec.
377 %L process LIB_SPEC as a spec.
378 %G process LIBGCC_SPEC as a spec.
379 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
380 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
381 %c process SIGNED_CHAR_SPEC as a spec.
382 %C process CPP_SPEC as a spec. A capital C is actually used here.
383 %1 process CC1_SPEC as a spec.
384 %2 process CC1PLUS_SPEC as a spec.
385 %| output "-" if the input for the current command is coming from a pipe.
386 %* substitute the variable part of a matched option. (See below.)
387 Note that each comma in the substituted string is replaced by
389 %{S} substitutes the -S switch, if that switch was given to CC.
390 If that switch was not specified, this substitutes nothing.
391 Here S is a metasyntactic variable.
392 %{S*} substitutes all the switches specified to CC whose names start
393 with -S. This is used for -o, -D, -I, etc; switches that take
394 arguments. CC considers `-o foo' as being one switch whose
395 name starts with `o'. %{o*} would substitute this text,
396 including the space; thus, two arguments would be generated.
397 %{S*:X} substitutes X if one or more switches whose names start with -S are
398 specified to CC. Note that the tail part of the -S option
399 (i.e. the part matched by the `*') will be substituted for each
400 occurrence of %* within X.
401 %{S:X} substitutes X, but only if the -S switch was given to CC.
402 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
403 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
404 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
405 %{.S:X} substitutes X, but only if processing a file with suffix S.
406 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
407 %(Spec) processes a specification defined in a specs file as *Spec:
408 %[Spec] as above, but put __ around -D arguments
410 The conditional text X in a %{S:X} or %{!S:X} construct may contain
411 other nested % constructs or spaces, or even newlines. They are
412 processed as usual, as described above.
414 The -O, -f, -m, and -W switches are handled specifically in these
415 constructs. If another value of -O or the negated form of a -f, -m, or
416 -W switch is found later in the command line, the earlier switch
417 value is ignored, except with {S*} where S is just one letter; this
418 passes all matching options.
420 The character | is used to indicate that a command should be piped to
421 the following command, but only if -pipe is specified.
423 Note that it is built into CC which switches take arguments and which
424 do not. You might think it would be useful to generalize this to
425 allow each compiler's spec to say which switches take arguments. But
426 this cannot be done in a consistent fashion. CC cannot even decide
427 which input files have been specified without knowing which switches
428 take arguments, and it must know which input files to compile in order
429 to tell which compilers to run.
431 CC also knows implicitly that arguments starting in `-l' are to be
432 treated as compiler output files, and passed to the linker in their
433 proper position among the other output files. */
435 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
437 /* config.h can define ASM_SPEC to provide extra args to the assembler
438 or extra switch-translations. */
443 /* config.h can define ASM_FINAL_SPEC to run a post processor after
444 the assembler has run. */
445 #ifndef ASM_FINAL_SPEC
446 #define ASM_FINAL_SPEC ""
449 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
450 or extra switch-translations. */
455 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
456 or extra switch-translations. */
461 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
462 or extra switch-translations. */
464 #define CC1PLUS_SPEC ""
467 /* config.h can define LINK_SPEC to provide extra args to the linker
468 or extra switch-translations. */
473 /* config.h can define LIB_SPEC to override the default libraries. */
475 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
478 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
481 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
482 /* Have gcc do the search for libgcc.a. */
483 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
485 #define LIBGCC_SPEC "%{!shared:-lgcc}"
489 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
490 #ifndef STARTFILE_SPEC
491 #define STARTFILE_SPEC \
492 "%{!shared:%{pg:gcrt0.%O%s}%{!pg:%{p:mcrt0.%O%s}%{!p:crt0.%O%s}}}"
495 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
496 Make the string nonempty to require spaces there. */
497 #ifndef SWITCHES_NEED_SPACES
498 #define SWITCHES_NEED_SPACES ""
501 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
503 #define ENDFILE_SPEC ""
506 /* This spec is used for telling cpp whether char is signed or not. */
507 #ifndef SIGNED_CHAR_SPEC
508 /* Use #if rather than ?:
509 because MIPS C compiler rejects like ?: in initializers. */
510 #if DEFAULT_SIGNED_CHAR
511 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
513 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
517 /* MULTILIB_SELECT comes from multilib.h. It gives a
518 string interpreted by set_multilib_dir to select a library
519 subdirectory based on the compiler options. */
520 #ifndef MULTILIB_SELECT
521 #define MULTILIB_SELECT ". ;"
524 static char *cpp_spec = CPP_SPEC;
525 static char *cpp_predefines = CPP_PREDEFINES;
526 static char *cc1_spec = CC1_SPEC;
527 static char *cc1plus_spec = CC1PLUS_SPEC;
528 static char *signed_char_spec = SIGNED_CHAR_SPEC;
529 static char *asm_spec = ASM_SPEC;
530 static char *asm_final_spec = ASM_FINAL_SPEC;
531 static char *link_spec = LINK_SPEC;
532 static char *lib_spec = LIB_SPEC;
533 static char *libgcc_spec = LIBGCC_SPEC;
534 static char *endfile_spec = ENDFILE_SPEC;
535 static char *startfile_spec = STARTFILE_SPEC;
536 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
537 static char *multilib_select = MULTILIB_SELECT;
539 /* This defines which switch letters take arguments. */
541 #ifndef SWITCH_TAKES_ARG
542 #define SWITCH_TAKES_ARG(CHAR) \
543 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
544 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
545 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
546 || (CHAR) == 'L' || (CHAR) == 'A')
549 /* This defines which multi-letter switches take arguments. */
551 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
552 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
553 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
554 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
555 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
556 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
557 || !strcmp (STR, "isystem"))
559 #ifndef WORD_SWITCH_TAKES_ARG
560 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
563 /* Record the mapping from file suffixes for compilation specs. */
567 char *suffix; /* Use this compiler for input files
568 whose names end in this suffix. */
570 char *spec[4]; /* To use this compiler, concatenate these
571 specs and pass to do_spec. */
574 /* Pointer to a vector of `struct compiler' that gives the spec for
575 compiling a file, based on its suffix.
576 A file that does not end in any of these suffixes will be passed
577 unchanged to the loader and nothing else will be done to it.
579 An entry containing two 0s is used to terminate the vector.
581 If multiple entries match a file, the last matching one is used. */
583 static struct compiler *compilers;
585 /* Number of entries in `compilers', not counting the null terminator. */
587 static int n_compilers;
589 /* The default list of file name suffixes and their compilation specs. */
591 static struct compiler default_compilers[] =
593 {".F", "@f77-cpp-output"},
595 /* For f77 we want -traditional to avoid errors with, for
596 instance, mismatched '. Also, we avoid unpleasant surprises
597 with substitution of names not prefixed by `_ by' using %P
598 rather than %p (although this isn't consistent with SGI and
599 Sun f77, at least) so you test `__unix' rather than `unix'.
600 -D_LANGUAGE_FORTRAN is used by some compilers like SGI and
601 might as well be in there. */
602 "cpp -lang-c -P %{nostdinc*} %{C} %{v} %{A*} %{I*} %I\
603 %{C:%{!E:%eGNU C does not support -C without using -E}}\
604 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
605 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
606 %{!undef:%P} -D_LANGUAGE_FORTRAN %{trigraphs} \
607 %c %{O*:-D__OPTIMIZE__} -traditional %{ftraditional:-traditional}\
608 %{traditional-cpp:-traditional}\
609 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
610 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
611 "f771 %{!pipe:%g.i} \
612 %{!Q:-quiet} -dumpbase %b.F %{d*} %{m*} %{a}\
613 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
614 %{v:-version -fversion} %{f*}\
615 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
616 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
618 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
619 %{!pipe:%g.s} %A\n }"},
623 %{!Q:-quiet} -dumpbase %b.f %{d*} %{m*} %{a}\
624 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
625 %{v:-version -fversion} %{f*}\
626 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
627 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
629 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
630 %{!pipe:%g.s} %A\n }"},
633 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
634 %{C:%{!E:%eGNU C does not support -C without using -E}}\
635 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
636 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
637 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
638 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
639 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
640 %{traditional-cpp:-traditional}\
641 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
642 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
643 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
644 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
645 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
646 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
648 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
649 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
651 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
652 %{!pipe:%g.s} %A\n }}}}"},
654 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
655 %{C:%{!E:%eGNU C does not support -C without using -E}}\
656 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
657 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
658 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
659 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
660 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
661 %{traditional-cpp:-traditional}\
662 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
664 %{!E:%e-E required when input is from standard input}"},
665 {".m", "@objective-c"},
667 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
668 %{C:%{!E:%eGNU C does not support -C without using -E}}\
669 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
670 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
671 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
672 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
673 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
674 %{traditional-cpp:-traditional}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
676 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
677 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
678 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
679 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
680 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
681 -lang-objc %{gen-decls} \
683 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
684 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
686 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
687 %{!pipe:%g.s} %A\n }}}}"},
690 "%{!E:%eCompilation of header file requested} \
691 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
692 %{C:%{!E:%eGNU C does not support -C without using -E}}\
693 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
694 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
695 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
696 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
697 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
698 %{traditional-cpp:-traditional}\
699 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
704 "cpp -lang-chill %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
705 %{C:%{!E:%eGNU CHILL does not support -C without using -E}}\
706 -undef -D__GNUCHILL__=%v1 -D__GNUC_MINOR__=%v2\
707 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
708 %{traditional-cpp:-traditional} %{!undef:%{!ansi:%p} %P} %{trigraphs}\
709 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
710 %i %{!E:%g.i}%{E:%W{o*}} \n",
711 "%{!E:cc1chill %g.i %1 \
712 %{!Q:-quiet} -dumpbase %b.ch %{d*} %{m*} %{a}\
713 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{itu} \
714 %{v:-version} %{pg:-p} %{p} %{f*} %{I*} \
716 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
717 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
719 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
720 %{!pipe:%g.s} %A\n }}"},
727 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
728 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
729 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
730 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
731 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
732 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
733 %{traditional-cpp:-traditional} %{trigraphs}\
734 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
735 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
736 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
737 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
738 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
739 %{traditional} %{v:-version} %{pg:-p} %{p}\
740 %{f*} %{+e*} %{aux-info*}\
741 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
742 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
744 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
745 %{!pipe:%g.s} %A\n }}}}"},
746 {".i", "@cpp-output"},
748 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
749 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
750 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
752 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
753 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
755 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
756 %{!pipe:%g.s} %A\n }}}}"},
757 {".ii", "@c++-cpp-output"},
759 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
760 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
761 %{traditional} %{v:-version} %{pg:-p} %{p}\
762 %{f*} %{+e*} %{aux-info*}\
763 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
764 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
766 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
767 %{!pipe:%g.s} %A\n }}}}"},
768 {".s", "@assembler"},
770 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
771 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
773 {".S", "@assembler-with-cpp"},
774 {"@assembler-with-cpp",
775 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
776 %{C:%{!E:%eGNU C does not support -C without using -E}}\
777 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
778 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
779 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
780 %{traditional-cpp:-traditional}\
781 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
782 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
783 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
784 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
785 %{!pipe:%g.s} %A\n }}}}"},
789 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
790 -dumpbase %{.adb:%b.adb}%{.ads:%b.ads}\
791 %{g*} %{O*} %{p} %{pg:-p} %{f*}\
793 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
794 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
795 %{!S:%{!gnatc:%{!gnats:as %a %Y\
796 %{c:%W{o*}%{!o*:-o %w%b.%O}}\
797 %{!c:-o %d%w%u.%O} %{!pipe:%g.s} %A\n}}}}}} "},
798 /* Mark end of table */
802 /* Number of elements in default_compilers, not counting the terminator. */
804 static int n_default_compilers
805 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
807 /* Here is the spec for running the linker, after compiling all files. */
809 /* -u* was put back because both BSD and SysV seem to support it. */
810 /* %{static:} simply prevents an error message if the target machine
811 doesn't handle -static. */
812 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
813 scripts which exist in user specified directories, or in standard
815 #ifdef LINK_LIBGCC_SPECIAL
816 /* Don't generate -L options. */
817 static char *link_command_spec = "\
819 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
820 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
821 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
822 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
825 static char *link_command_spec = "\
827 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
828 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
829 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
830 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
833 /* A vector of options to give to the linker.
834 These options are accumulated by %x,
835 and substituted into the linker command with %X. */
836 static int n_linker_options;
837 static char **linker_options;
839 /* A vector of options to give to the assembler.
840 These options are accumulated by -Wa,
841 and substituted into the assembler command with %Y. */
842 static int n_assembler_options;
843 static char **assembler_options;
845 /* A vector of options to give to the preprocessor.
846 These options are accumulated by -Wp,
847 and substituted into the preprocessor command with %Z. */
848 static int n_preprocessor_options;
849 static char **preprocessor_options;
851 /* Define how to map long options into short ones. */
853 /* This structure describes one mapping. */
856 /* The long option's name. */
858 /* The equivalent short option. */
860 /* Argument info. A string of flag chars; NULL equals no options.
861 a => argument required.
862 o => argument optional.
863 j => join argument to equivalent, making one word.
864 * => require other text after NAME as an argument. */
868 /* This is the table of mappings. Mappings are tried sequentially
869 for each option encountered; the first one that matches, wins. */
871 struct option_map option_map[] =
873 {"--all-warnings", "-Wall", 0},
874 {"--ansi", "-ansi", 0},
875 {"--assemble", "-S", 0},
876 {"--assert", "-A", "a"},
877 {"--comments", "-C", 0},
878 {"--compile", "-c", 0},
879 {"--debug", "-g", "oj"},
880 {"--define-macro", "-D", "a"},
881 {"--dependencies", "-M", 0},
882 {"--dump", "-d", "a"},
883 {"--dumpbase", "-dumpbase", "a"},
884 {"--entry", "-e", 0},
885 {"--extra-warnings", "-W", 0},
886 {"--for-assembler", "-Wa", "a"},
887 {"--for-linker", "-Xlinker", "a"},
888 {"--force-link", "-u", "a"},
889 {"--imacros", "-imacros", "a"},
890 {"--include", "-include", "a"},
891 {"--include-barrier", "-I-", 0},
892 {"--include-directory", "-I", "a"},
893 {"--include-directory-after", "-idirafter", "a"},
894 {"--include-prefix", "-iprefix", "a"},
895 {"--include-with-prefix", "-iwithprefix", "a"},
896 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
897 {"--include-with-prefix-after", "-iwithprefix", "a"},
898 {"--language", "-x", "a"},
899 {"--library-directory", "-L", "a"},
900 {"--machine", "-m", "aj"},
901 {"--machine-", "-m", "*j"},
902 {"--no-line-commands", "-P", 0},
903 {"--no-precompiled-includes", "-noprecomp", 0},
904 {"--no-standard-includes", "-nostdinc", 0},
905 {"--no-standard-libraries", "-nostdlib", 0},
906 {"--no-warnings", "-w", 0},
907 {"--optimize", "-O", "oj"},
908 {"--output", "-o", "a"},
909 {"--pedantic", "-pedantic", 0},
910 {"--pedantic-errors", "-pedantic-errors", 0},
911 {"--pipe", "-pipe", 0},
912 {"--prefix", "-B", "a"},
913 {"--preprocess", "-E", 0},
914 {"--print-search-dirs", "-print-search-dirs", 0},
915 {"--print-file-name", "-print-file-name=", "aj"},
916 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
917 {"--print-missing-file-dependencies", "-MG", 0},
918 {"--print-multi-lib", "-print-multi-lib", 0},
919 {"--print-multi-directory", "-print-multi-directory", 0},
920 {"--print-prog-name", "-print-prog-name=", "aj"},
921 {"--profile", "-p", 0},
922 {"--profile-blocks", "-a", 0},
923 {"--quiet", "-q", 0},
924 {"--save-temps", "-save-temps", 0},
925 {"--shared", "-shared", 0},
926 {"--silent", "-q", 0},
927 {"--static", "-static", 0},
928 {"--symbolic", "-symbolic", 0},
929 {"--target", "-b", "a"},
930 {"--trace-includes", "-H", 0},
931 {"--traditional", "-traditional", 0},
932 {"--traditional-cpp", "-traditional-cpp", 0},
933 {"--trigraphs", "-trigraphs", 0},
934 {"--undefine-macro", "-U", "a"},
935 {"--use-version", "-V", "a"},
936 {"--user-dependencies", "-MM", 0},
937 {"--verbose", "-v", 0},
938 {"--version", "-dumpversion", 0},
939 {"--warn-", "-W", "*j"},
940 {"--write-dependencies", "-MD", 0},
941 {"--write-user-dependencies", "-MMD", 0},
945 /* Translate the options described by *ARGCP and *ARGVP.
946 Make a new vector and store it back in *ARGVP,
947 and store its length in *ARGVC. */
950 translate_options (argcp, argvp)
956 char **argv = *argvp;
957 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
961 newv[newindex++] = argv[i++];
965 /* Translate -- options. */
966 if (argv[i][0] == '-' && argv[i][1] == '-')
968 /* Find a mapping that applies to this option. */
969 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
971 int optlen = strlen (option_map[j].name);
972 int arglen = strlen (argv[i]);
973 int complen = arglen > optlen ? optlen : arglen;
974 char *arginfo = option_map[j].arg_info;
979 if (!strncmp (argv[i], option_map[j].name, complen))
986 k < sizeof (option_map) / sizeof (option_map[0]);
988 if (strlen (option_map[k].name) >= arglen
989 && !strncmp (argv[i], option_map[k].name, arglen))
991 error ("Ambiguous abbreviation %s", argv[i]);
995 if (k != sizeof (option_map) / sizeof (option_map[0]))
1001 /* If the option has an argument, accept that. */
1002 if (argv[i][optlen] == '=')
1003 arg = argv[i] + optlen + 1;
1005 /* If this mapping requires extra text at end of name,
1006 accept that as "argument". */
1007 else if (index (arginfo, '*') != 0)
1008 arg = argv[i] + optlen;
1010 /* Otherwise, extra text at end means mismatch.
1011 Try other mappings. */
1016 else if (index (arginfo, '*') != 0)
1018 error ("Incomplete `%s' option", option_map[j].name);
1022 /* Handle arguments. */
1023 if (index (arginfo, 'a') != 0)
1029 error ("Missing argument to `%s' option",
1030 option_map[j].name);
1037 else if (index (arginfo, '*') != 0)
1039 else if (index (arginfo, 'o') == 0)
1042 error ("Extraneous argument to `%s' option",
1043 option_map[j].name);
1047 /* Store the translation as one argv elt or as two. */
1048 if (arg != 0 && index (arginfo, 'j') != 0)
1049 newv[newindex++] = concat (option_map[j].equivalent, arg);
1052 newv[newindex++] = option_map[j].equivalent;
1053 newv[newindex++] = arg;
1056 newv[newindex++] = option_map[j].equivalent;
1064 /* Handle old-fashioned options--just copy them through,
1065 with their arguments. */
1066 else if (argv[i][0] == '-')
1068 char *p = argv[i] + 1;
1072 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1073 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1074 else if (WORD_SWITCH_TAKES_ARG (p))
1075 nskip += WORD_SWITCH_TAKES_ARG (p);
1076 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1079 else if (! strcmp (p, "Xlinker"))
1082 /* Watch out for an option at the end of the command line that
1083 is missing arguments, and avoid skipping past the end of the
1085 if (nskip + i > argc)
1090 newv[newindex++] = argv[i++];
1095 /* Ordinary operands, or +e options. */
1096 newv[newindex++] = argv[i++];
1105 /* Read compilation specs from a file named FILENAME,
1106 replacing the default ones.
1108 A suffix which starts with `*' is a definition for
1109 one of the machine-specific sub-specs. The "suffix" should be
1110 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1111 The corresponding spec is stored in asm_spec, etc.,
1112 rather than in the `compilers' vector.
1114 Anything invalid in the file is a fatal error. */
1117 read_specs (filename)
1122 struct stat statbuf;
1127 fprintf (stderr, "Reading specs from %s\n", filename);
1129 /* Open and stat the file. */
1130 desc = open (filename, O_RDONLY, 0);
1132 pfatal_with_name (filename);
1133 if (stat (filename, &statbuf) < 0)
1134 pfatal_with_name (filename);
1136 /* Read contents of file into BUFFER. */
1137 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1138 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1140 pfatal_with_name (filename);
1141 buffer[readlen] = 0;
1144 /* Scan BUFFER for specs, putting them in the vector. */
1150 char *in, *out, *p1, *p2;
1152 /* Advance P in BUFFER to the next nonblank nocomment line. */
1153 p = skip_whitespace (p);
1157 /* Find the colon that should end the suffix. */
1159 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1160 /* The colon shouldn't be missing. */
1162 fatal ("specs file malformed after %d characters", p1 - buffer);
1163 /* Skip back over trailing whitespace. */
1165 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1166 /* Copy the suffix to a string. */
1167 suffix = save_string (p, p2 - p);
1168 /* Find the next line. */
1169 p = skip_whitespace (p1 + 1);
1171 fatal ("specs file malformed after %d characters", p - buffer);
1173 /* Find next blank line. */
1174 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1175 /* Specs end at the blank line and do not include the newline. */
1176 spec = save_string (p, p1 - p);
1179 /* Delete backslash-newline sequences from the spec. */
1184 if (in[0] == '\\' && in[1] == '\n')
1186 else if (in[0] == '#')
1188 while (*in && *in != '\n') in++;
1195 if (suffix[0] == '*')
1197 if (! strcmp (suffix, "*link_command"))
1198 link_command_spec = spec;
1200 set_spec (suffix + 1, spec);
1204 /* Add this pair to the vector. */
1206 = ((struct compiler *)
1207 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1208 compilers[n_compilers].suffix = suffix;
1209 bzero ((char *) compilers[n_compilers].spec,
1210 sizeof compilers[n_compilers].spec);
1211 compilers[n_compilers].spec[0] = spec;
1213 bzero ((char *) &compilers[n_compilers],
1214 sizeof compilers[n_compilers]);
1218 link_command_spec = spec;
1221 if (link_command_spec == 0)
1222 fatal ("spec file has no spec for linking");
1231 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1232 be considered whitespace. */
1233 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1235 else if (*p == '\n' || *p == ' ' || *p == '\t')
1239 while (*p != '\n') p++;
1249 /* Structure to keep track of the specs that have been defined so far. These
1250 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1254 char *name; /* Name of the spec. */
1255 char *spec; /* The spec itself. */
1256 struct spec_list *next; /* Next spec in linked list. */
1259 /* List of specs that have been defined so far. */
1261 static struct spec_list *specs = (struct spec_list *) 0;
1263 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1264 removed; If the spec starts with a + then SPEC is added to the end of the
1268 set_spec (name, spec)
1272 struct spec_list *sl;
1275 /* See if the spec already exists */
1276 for (sl = specs; sl; sl = sl->next)
1277 if (strcmp (sl->name, name) == 0)
1282 /* Not found - make it */
1283 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1284 sl->name = save_string (name, strlen (name));
1285 sl->spec = save_string ("", 0);
1290 old_spec = sl->spec;
1291 if (name && spec[0] == '+' && isspace (spec[1]))
1292 sl->spec = concat (old_spec, spec + 1);
1294 sl->spec = save_string (spec, strlen (spec));
1296 if (! strcmp (name, "asm"))
1297 asm_spec = sl->spec;
1298 else if (! strcmp (name, "asm_final"))
1299 asm_final_spec = sl->spec;
1300 else if (! strcmp (name, "cc1"))
1301 cc1_spec = sl->spec;
1302 else if (! strcmp (name, "cc1plus"))
1303 cc1plus_spec = sl->spec;
1304 else if (! strcmp (name, "cpp"))
1305 cpp_spec = sl->spec;
1306 else if (! strcmp (name, "endfile"))
1307 endfile_spec = sl->spec;
1308 else if (! strcmp (name, "lib"))
1309 lib_spec = sl->spec;
1310 else if (! strcmp (name, "libgcc"))
1311 libgcc_spec = sl->spec;
1312 else if (! strcmp (name, "link"))
1313 link_spec = sl->spec;
1314 else if (! strcmp (name, "predefines"))
1315 cpp_predefines = sl->spec;
1316 else if (! strcmp (name, "signed_char"))
1317 signed_char_spec = sl->spec;
1318 else if (! strcmp (name, "startfile"))
1319 startfile_spec = sl->spec;
1320 else if (! strcmp (name, "switches_need_spaces"))
1321 switches_need_spaces = sl->spec;
1322 else if (! strcmp (name, "cross_compile"))
1323 cross_compile = atoi (sl->spec);
1324 else if (! strcmp (name, "multilib"))
1325 multilib_select = sl->spec;
1326 /* Free the old spec */
1331 /* Accumulate a command (program name and args), and run it. */
1333 /* Vector of pointers to arguments in the current line of specifications. */
1335 static char **argbuf;
1337 /* Number of elements allocated in argbuf. */
1339 static int argbuf_length;
1341 /* Number of elements in argbuf currently in use (containing args). */
1343 static int argbuf_index;
1345 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1346 temp file. Used only if MKTEMP_EACH_FILE. */
1348 static struct temp_name {
1349 char *suffix; /* suffix associated with the code. */
1350 int length; /* strlen (suffix). */
1351 int unique; /* Indicates whether %g or %u/%U was used. */
1352 char *filename; /* associated filename. */
1353 int filename_length; /* strlen (filename). */
1354 struct temp_name *next;
1357 /* Number of commands executed so far. */
1359 static int execution_count;
1361 /* Number of commands that exited with a signal. */
1363 static int signal_count;
1365 /* Name with which this program was invoked. */
1367 static char *programname;
1369 /* Structures to keep track of prefixes to try when looking for files. */
1373 char *prefix; /* String to prepend to the path. */
1374 struct prefix_list *next; /* Next in linked list. */
1375 int require_machine_suffix; /* Don't use without machine_suffix. */
1376 /* 2 means try both machine_suffix and just_machine_suffix. */
1377 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1382 struct prefix_list *plist; /* List of prefixes to try */
1383 int max_len; /* Max length of a prefix in PLIST */
1384 char *name; /* Name of this list (used in config stuff) */
1387 /* List of prefixes to try when looking for executables. */
1389 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1391 /* List of prefixes to try when looking for startup (crt0) files. */
1393 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1395 /* List of prefixes to try when looking for include files. */
1397 static struct path_prefix include_prefixes = { 0, 0, "include" };
1399 /* Suffix to attach to directories searched for commands.
1400 This looks like `MACHINE/VERSION/'. */
1402 static char *machine_suffix = 0;
1404 /* Suffix to attach to directories searched for commands.
1405 This is just `MACHINE/'. */
1407 static char *just_machine_suffix = 0;
1409 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1411 static char *gcc_exec_prefix;
1413 /* Default prefixes to attach to command names. */
1415 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1416 #undef MD_EXEC_PREFIX
1417 #undef MD_STARTFILE_PREFIX
1418 #undef MD_STARTFILE_PREFIX_1
1421 #ifndef STANDARD_EXEC_PREFIX
1422 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1423 #endif /* !defined STANDARD_EXEC_PREFIX */
1425 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1426 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1427 #ifdef MD_EXEC_PREFIX
1428 static char *md_exec_prefix = MD_EXEC_PREFIX;
1431 #ifndef STANDARD_STARTFILE_PREFIX
1432 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1433 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1435 #ifdef MD_STARTFILE_PREFIX
1436 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1438 #ifdef MD_STARTFILE_PREFIX_1
1439 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1441 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1442 static char *standard_startfile_prefix_1 = "/lib/";
1443 static char *standard_startfile_prefix_2 = "/usr/lib/";
1445 #ifndef TOOLDIR_BASE_PREFIX
1446 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1448 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1449 static char *tooldir_prefix;
1451 /* Subdirectory to use for locating libraries. Set by
1452 set_multilib_dir based on the compilation options. */
1454 static char *multilib_dir;
1456 /* Clear out the vector of arguments (after a command is executed). */
1464 /* Add one argument to the vector at the end.
1465 This is done when a space is seen or at the end of the line.
1466 If DELETE_ALWAYS is nonzero, the arg is a filename
1467 and the file should be deleted eventually.
1468 If DELETE_FAILURE is nonzero, the arg is a filename
1469 and the file should be deleted if this compilation fails. */
1472 store_arg (arg, delete_always, delete_failure)
1474 int delete_always, delete_failure;
1476 if (argbuf_index + 1 == argbuf_length)
1478 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1481 argbuf[argbuf_index++] = arg;
1482 argbuf[argbuf_index] = 0;
1484 if (delete_always || delete_failure)
1485 record_temp_file (arg, delete_always, delete_failure);
1488 /* Record the names of temporary files we tell compilers to write,
1489 and delete them at the end of the run. */
1491 /* This is the common prefix we use to make temp file names.
1492 It is chosen once for each run of this program.
1493 It is substituted into a spec by %g.
1494 Thus, all temp file names contain this prefix.
1495 In practice, all temp file names start with this prefix.
1497 This prefix comes from the envvar TMPDIR if it is defined;
1498 otherwise, from the P_tmpdir macro if that is defined;
1499 otherwise, in /usr/tmp or /tmp. */
1501 static char *temp_filename;
1503 /* Length of the prefix. */
1505 static int temp_filename_length;
1507 /* Define the list of temporary files to delete. */
1512 struct temp_file *next;
1515 /* Queue of files to delete on success or failure of compilation. */
1516 static struct temp_file *always_delete_queue;
1517 /* Queue of files to delete on failure of compilation. */
1518 static struct temp_file *failure_delete_queue;
1520 /* Record FILENAME as a file to be deleted automatically.
1521 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1522 otherwise delete it in any case.
1523 FAIL_DELETE nonzero means delete it if a compilation step fails;
1524 otherwise delete it in any case. */
1527 record_temp_file (filename, always_delete, fail_delete)
1532 register char *name;
1533 name = xmalloc (strlen (filename) + 1);
1534 strcpy (name, filename);
1538 register struct temp_file *temp;
1539 for (temp = always_delete_queue; temp; temp = temp->next)
1540 if (! strcmp (name, temp->name))
1542 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1543 temp->next = always_delete_queue;
1545 always_delete_queue = temp;
1551 register struct temp_file *temp;
1552 for (temp = failure_delete_queue; temp; temp = temp->next)
1553 if (! strcmp (name, temp->name))
1555 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1556 temp->next = failure_delete_queue;
1558 failure_delete_queue = temp;
1563 /* Delete all the temporary files whose names we previously recorded. */
1566 delete_if_ordinary (name)
1573 printf ("Delete %s? (y or n) ", name);
1577 while ((c = getchar ()) != '\n' && c != EOF) ;
1578 if (i == 'y' || i == 'Y')
1580 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1581 if (unlink (name) < 0)
1583 perror_with_name (name);
1587 delete_temp_files ()
1589 register struct temp_file *temp;
1591 for (temp = always_delete_queue; temp; temp = temp->next)
1592 delete_if_ordinary (temp->name);
1593 always_delete_queue = 0;
1596 /* Delete all the files to be deleted on error. */
1599 delete_failure_queue ()
1601 register struct temp_file *temp;
1603 for (temp = failure_delete_queue; temp; temp = temp->next)
1604 delete_if_ordinary (temp->name);
1608 clear_failure_queue ()
1610 failure_delete_queue = 0;
1613 /* Compute a string to use as the base of all temporary file names.
1614 It is substituted for %g. */
1617 choose_temp_base_try (try, base)
1624 else if (try == (char *)0)
1626 else if (access (try, R_OK | W_OK) != 0)
1639 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1640 base = choose_temp_base_try (getenv ("TMP"), base);
1641 base = choose_temp_base_try (getenv ("TEMP"), base);
1644 base = choose_temp_base_try (P_tmpdir, base);
1647 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1648 dir_separator_str, "tmp"),
1650 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1652 /* If all else fails, use the current directory! */
1653 if (base == (char *)0) base = concat(".", dir_separator_str);
1655 len = strlen (base);
1656 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1658 strcpy (temp_filename, base);
1659 if (len > 0 && temp_filename[len-1] != '/'
1660 && temp_filename[len-1] != DIR_SEPARATOR)
1661 temp_filename[len++] = DIR_SEPARATOR;
1662 strcpy (temp_filename + len, "ccXXXXXX");
1664 mktemp (temp_filename);
1665 temp_filename_length = strlen (temp_filename);
1666 if (temp_filename_length == 0)
1671 /* Routine to add variables to the environment. We do this to pass
1672 the pathname of the gcc driver, and the directories search to the
1673 collect2 program, which is being run as ld. This way, we can be
1674 sure of executing the right compiler when collect2 wants to build
1675 constructors and destructors. Since the environment variables we
1676 use come from an obstack, we don't have to worry about allocating
1685 #ifndef VMS /* nor about VMS */
1687 extern char **environ;
1688 char **old_environ = environ;
1692 int str_len = strlen (str);
1696 while ((ch = *p++) != '\0' && ch != '=')
1702 /* Search for replacing an existing environment variable, and
1703 count the number of total environment variables. */
1704 for (envp = old_environ; *envp; envp++)
1707 if (!strncmp (str, *envp, name_len))
1714 /* Add a new environment variable */
1715 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1717 bcopy ((char *) old_environ, (char *) (environ + 1),
1718 sizeof (char *) * (num_envs+1));
1723 #endif /* HAVE_PUTENV */
1726 /* Build a list of search directories from PATHS.
1727 PREFIX is a string to prepend to the list.
1728 If CHECK_DIR_P is non-zero we ensure the directory exists.
1729 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1730 It is also used by the --print-search-dirs flag. */
1733 build_search_list (paths, prefix, check_dir_p)
1734 struct path_prefix *paths;
1738 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1740 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1741 int first_time = TRUE;
1742 struct prefix_list *pprefix;
1744 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1746 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1748 int len = strlen (pprefix->prefix);
1752 || is_directory (pprefix->prefix, machine_suffix, 0)))
1755 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1758 obstack_grow (&collect_obstack, pprefix->prefix, len);
1759 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1762 if (just_machine_suffix
1763 && pprefix->require_machine_suffix == 2
1765 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1768 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1771 obstack_grow (&collect_obstack, pprefix->prefix, len);
1772 obstack_grow (&collect_obstack, just_machine_suffix,
1776 if (!pprefix->require_machine_suffix)
1779 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1782 obstack_grow (&collect_obstack, pprefix->prefix, len);
1785 obstack_1grow (&collect_obstack, '\0');
1786 return obstack_finish (&collect_obstack);
1789 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1792 putenv_from_prefixes (paths, env_var)
1793 struct path_prefix *paths;
1796 putenv (build_search_list (paths, env_var, 1));
1799 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1800 access to check permissions.
1801 Return 0 if not found, otherwise return its name, allocated with malloc. */
1804 find_a_file (pprefix, name, mode)
1805 struct path_prefix *pprefix;
1810 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1811 struct prefix_list *pl;
1812 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1815 len += strlen (machine_suffix);
1817 temp = xmalloc (len);
1819 /* Determine the filename to execute (special case for absolute paths). */
1821 if (*name == '/' || *name == DIR_SEPARATOR)
1823 if (access (name, mode))
1825 strcpy (temp, name);
1830 for (pl = pprefix->plist; pl; pl = pl->next)
1834 /* Some systems have a suffix for executable files.
1835 So try appending that first. */
1836 if (file_suffix[0] != 0)
1838 strcpy (temp, pl->prefix);
1839 strcat (temp, machine_suffix);
1840 strcat (temp, name);
1841 strcat (temp, file_suffix);
1842 if (access (temp, mode) == 0)
1844 if (pl->used_flag_ptr != 0)
1845 *pl->used_flag_ptr = 1;
1850 /* Now try just the name. */
1851 strcpy (temp, pl->prefix);
1852 strcat (temp, machine_suffix);
1853 strcat (temp, name);
1854 if (access (temp, mode) == 0)
1856 if (pl->used_flag_ptr != 0)
1857 *pl->used_flag_ptr = 1;
1862 /* Certain prefixes are tried with just the machine type,
1863 not the version. This is used for finding as, ld, etc. */
1864 if (just_machine_suffix && pl->require_machine_suffix == 2)
1866 /* Some systems have a suffix for executable files.
1867 So try appending that first. */
1868 if (file_suffix[0] != 0)
1870 strcpy (temp, pl->prefix);
1871 strcat (temp, just_machine_suffix);
1872 strcat (temp, name);
1873 strcat (temp, file_suffix);
1874 if (access (temp, mode) == 0)
1876 if (pl->used_flag_ptr != 0)
1877 *pl->used_flag_ptr = 1;
1882 strcpy (temp, pl->prefix);
1883 strcat (temp, just_machine_suffix);
1884 strcat (temp, name);
1885 if (access (temp, mode) == 0)
1887 if (pl->used_flag_ptr != 0)
1888 *pl->used_flag_ptr = 1;
1893 /* Certain prefixes can't be used without the machine suffix
1894 when the machine or version is explicitly specified. */
1895 if (!pl->require_machine_suffix)
1897 /* Some systems have a suffix for executable files.
1898 So try appending that first. */
1899 if (file_suffix[0] != 0)
1901 strcpy (temp, pl->prefix);
1902 strcat (temp, name);
1903 strcat (temp, file_suffix);
1904 if (access (temp, mode) == 0)
1906 if (pl->used_flag_ptr != 0)
1907 *pl->used_flag_ptr = 1;
1912 strcpy (temp, pl->prefix);
1913 strcat (temp, name);
1914 if (access (temp, mode) == 0)
1916 if (pl->used_flag_ptr != 0)
1917 *pl->used_flag_ptr = 1;
1927 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1928 at the start of the list, otherwise it goes at the end.
1930 If WARN is nonzero, we will warn if no file is found
1931 through this prefix. WARN should point to an int
1932 which will be set to 1 if this entry is used.
1934 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1935 the complete value of machine_suffix.
1936 2 means try both machine_suffix and just_machine_suffix. */
1939 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1940 struct path_prefix *pprefix;
1943 int require_machine_suffix;
1946 struct prefix_list *pl, **prev;
1949 if (!first && pprefix->plist)
1951 for (pl = pprefix->plist; pl->next; pl = pl->next)
1956 prev = &pprefix->plist;
1958 /* Keep track of the longest prefix */
1960 len = strlen (prefix);
1961 if (len > pprefix->max_len)
1962 pprefix->max_len = len;
1964 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1965 pl->prefix = save_string (prefix, len);
1966 pl->require_machine_suffix = require_machine_suffix;
1967 pl->used_flag_ptr = warn;
1974 pl->next = (struct prefix_list *) 0;
1978 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1981 unused_prefix_warnings (pprefix)
1982 struct path_prefix *pprefix;
1984 struct prefix_list *pl = pprefix->plist;
1988 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1990 error ("file path prefix `%s' never used",
1992 /* Prevent duplicate warnings. */
1993 *pl->used_flag_ptr = 1;
1999 /* Get rid of all prefixes built up so far in *PLISTP. */
2002 free_path_prefix (pprefix)
2003 struct path_prefix *pprefix;
2005 struct prefix_list *pl = pprefix->plist;
2006 struct prefix_list *temp;
2012 free (temp->prefix);
2013 free ((char *) temp);
2015 pprefix->plist = (struct prefix_list *) 0;
2018 /* stdin file number. */
2019 #define STDIN_FILE_NO 0
2021 /* stdout file number. */
2022 #define STDOUT_FILE_NO 1
2024 /* value of `pipe': port index for reading. */
2027 /* value of `pipe': port index for writing. */
2028 #define WRITE_PORT 1
2030 /* Pipe waiting from last process, to be used as input for the next one.
2031 Value is STDIN_FILE_NO if no pipe is waiting
2032 (i.e. the next command is the first of a group). */
2034 static int last_pipe_input;
2036 /* Fork one piped subcommand. FUNC is the system call to use
2037 (either execv or execvp). ARGV is the arg vector to use.
2038 NOT_LAST is nonzero if this is not the last subcommand
2039 (i.e. its output should be piped to the next one.) */
2043 #include <process.h>
2045 pexecute (search_flag, program, argv, not_last)
2052 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
2056 int i, el = search_flag ? 0 : 4;
2058 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
2059 rf = scmd + strlen(program) + 2 + el;
2060 sprintf (scmd, "%s%s @%s.gp", program,
2061 (search_flag ? "" : ".exe"), temp_filename);
2062 argfile = fopen (rf, "w");
2064 pfatal_with_name (rf);
2066 for (i=1; argv[i]; i++)
2069 for (cp = argv[i]; *cp; cp++)
2071 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2072 fputc ('\\', argfile);
2073 fputc (*cp, argfile);
2075 fputc ('\n', argfile);
2086 perror_exec (program);
2087 return MIN_FATAL_STATUS << 8;
2094 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2097 pexecute (search_flag, program, argv, not_last)
2103 int (*func)() = (search_flag ? execv : execvp);
2106 int input_desc = last_pipe_input;
2107 int output_desc = STDOUT_FILE_NO;
2108 int retries, sleep_interval;
2110 /* If this isn't the last process, make a pipe for its output,
2111 and record it as waiting to be the input to the next process. */
2115 if (pipe (pdes) < 0)
2116 pfatal_with_name ("pipe");
2117 output_desc = pdes[WRITE_PORT];
2118 last_pipe_input = pdes[READ_PORT];
2121 last_pipe_input = STDIN_FILE_NO;
2123 /* Fork a subprocess; wait and retry if it fails. */
2125 for (retries = 0; retries < 4; retries++)
2130 sleep (sleep_interval);
2131 sleep_interval *= 2;
2138 pfatal_with_name ("fork");
2140 pfatal_with_name ("vfork");
2146 /* Move the input and output pipes into place, if nec. */
2147 if (input_desc != STDIN_FILE_NO)
2149 close (STDIN_FILE_NO);
2153 if (output_desc != STDOUT_FILE_NO)
2155 close (STDOUT_FILE_NO);
2157 close (output_desc);
2160 /* Close the parent's descs that aren't wanted here. */
2161 if (last_pipe_input != STDIN_FILE_NO)
2162 close (last_pipe_input);
2164 /* Exec the program. */
2165 (*func) (program, argv);
2166 perror_exec (program);
2172 /* In the parent, after forking.
2173 Close the descriptors that we made for this child. */
2174 if (input_desc != STDIN_FILE_NO)
2176 if (output_desc != STDOUT_FILE_NO)
2177 close (output_desc);
2179 /* Return child's process number. */
2184 #endif /* not __MSDOS__ and not OS2 and not WINNT */
2186 #if defined(OS2) || defined(WINNT)
2190 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2191 to remove the outermost set of double quotes from all arguments. */
2199 for (i = 1; argvec[i] != 0; i++)
2202 char *temp, *newtemp;
2205 len = strlen (temp);
2206 for (j = 0; j < len; j++)
2210 newtemp = xmalloc (len + 2);
2211 strncpy (newtemp, temp, j);
2213 strncpy (&newtemp [j+1], &temp [j], len-j);
2214 newtemp [len+1] = 0;
2225 return (const char* const*) argvec;
2228 #define FIX_ARGV(a) fix_argv(a)
2232 #define FIX_ARGV(a) a
2237 pexecute (search_flag, program, argv, not_last)
2243 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2245 #endif /* OS2 or WINNT */
2248 /* Execute the command specified by the arguments on the current line of spec.
2249 When using pipes, this includes several piped-together commands
2250 with `|' between them.
2252 Return 0 if successful, -1 if failed. */
2258 int n_commands; /* # of command. */
2262 char *prog; /* program name. */
2263 char **argv; /* vector of args. */
2264 int pid; /* pid of process for this command. */
2267 struct command *commands; /* each command buffer with above info. */
2269 /* Count # of piped commands. */
2270 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2271 if (strcmp (argbuf[i], "|") == 0)
2274 /* Get storage for each command. */
2276 = (struct command *) alloca (n_commands * sizeof (struct command));
2278 /* Split argbuf into its separate piped processes,
2279 and record info about each one.
2280 Also search for the programs that are to be run. */
2282 commands[0].prog = argbuf[0]; /* first command. */
2283 commands[0].argv = &argbuf[0];
2284 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2286 commands[0].argv[0] = string;
2288 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2289 if (strcmp (argbuf[i], "|") == 0)
2290 { /* each command. */
2292 fatal ("-pipe not supported under MS-DOS");
2294 argbuf[i] = 0; /* termination of command args. */
2295 commands[n_commands].prog = argbuf[i + 1];
2296 commands[n_commands].argv = &argbuf[i + 1];
2297 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2299 commands[n_commands].argv[0] = string;
2303 argbuf[argbuf_index] = 0;
2305 /* If -v, print what we are about to do, and maybe query. */
2309 /* Print each piped command as a separate line. */
2310 for (i = 0; i < n_commands ; i++)
2314 for (j = commands[i].argv; *j; j++)
2315 fprintf (stderr, " %s", *j);
2317 /* Print a pipe symbol after all but the last command. */
2318 if (i + 1 != n_commands)
2319 fprintf (stderr, " |");
2320 fprintf (stderr, "\n");
2324 fprintf (stderr, "\nGo ahead? (y or n) ");
2328 while (getchar () != '\n') ;
2329 if (i != 'y' && i != 'Y')
2334 /* Run each piped subprocess. */
2336 last_pipe_input = STDIN_FILE_NO;
2337 for (i = 0; i < n_commands; i++)
2339 char *string = commands[i].argv[0];
2341 commands[i].pid = pexecute (string != commands[i].prog,
2342 string, commands[i].argv,
2343 i + 1 < n_commands);
2345 if (string != commands[i].prog)
2351 /* Wait for all the subprocesses to finish.
2352 We don't care what order they finish in;
2353 we know that N_COMMANDS waits will get them all.
2354 Ignore subprocesses that we don't know about,
2355 since they can be spawned by the process that exec'ed us. */
2360 for (i = 0; i < n_commands; )
2367 status = pid = commands[i].pid;
2370 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2372 pid = wait (&status);
2378 for (j = 0; j < n_commands; j++)
2379 if (commands[j].pid == pid)
2384 if (WIFSIGNALED (status))
2386 fatal ("Internal compiler error: program %s got fatal signal %d",
2387 commands[j].prog, WTERMSIG (status));
2391 else if (WIFEXITED (status)
2392 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2402 /* Find all the switches given to us
2403 and make a vector describing them.
2404 The elements of the vector are strings, one per switch given.
2405 If a switch uses following arguments, then the `part1' field
2406 is the switch itself and the `args' field
2407 is a null-terminated vector containing the following arguments.
2408 The `live_cond' field is 1 if the switch is true in a conditional spec,
2409 -1 if false (overridden by a later switch), and is initialized to zero.
2410 The `valid' field is nonzero if any spec has looked at this switch;
2411 if it remains zero at the end of the run, it must be meaningless. */
2421 static struct switchstr *switches;
2423 static int n_switches;
2431 /* Also a vector of input files specified. */
2433 static struct infile *infiles;
2435 static int n_infiles;
2437 /* And a vector of corresponding output files is made up later. */
2439 static char **outfiles;
2441 /* Create the vector `switches' and its contents.
2442 Store its length in `n_switches'. */
2445 process_command (argc, argv)
2451 char *spec_lang = 0;
2452 int last_language_n_infiles;
2454 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2459 /* Figure compiler version from version string. */
2461 compiler_version = save_string (version_string, strlen (version_string));
2462 for (temp = compiler_version; *temp; ++temp)
2471 /* Set up the default search paths. */
2473 if (gcc_exec_prefix)
2475 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2476 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2479 /* COMPILER_PATH and LIBRARY_PATH have values
2480 that are lists of directory names with colons. */
2482 temp = getenv ("COMPILER_PATH");
2485 char *startp, *endp;
2486 char *nstore = (char *) alloca (strlen (temp) + 3);
2488 startp = endp = temp;
2491 if (*endp == PATH_SEPARATOR || *endp == 0)
2493 strncpy (nstore, startp, endp-startp);
2495 strcpy (nstore, concat (".", dir_separator_str));
2496 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2498 nstore[endp-startp] = DIR_SEPARATOR;
2499 nstore[endp-startp+1] = 0;
2502 nstore[endp-startp] = 0;
2503 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2506 endp = startp = endp + 1;
2513 temp = getenv ("LIBRARY_PATH");
2514 if (temp && ! cross_compile)
2516 char *startp, *endp;
2517 char *nstore = (char *) alloca (strlen (temp) + 3);
2519 startp = endp = temp;
2522 if (*endp == PATH_SEPARATOR || *endp == 0)
2524 strncpy (nstore, startp, endp-startp);
2526 strcpy (nstore, concat (".", dir_separator_str));
2527 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2529 nstore[endp-startp] = DIR_SEPARATOR;
2530 nstore[endp-startp+1] = 0;
2533 nstore[endp-startp] = 0;
2534 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2537 endp = startp = endp + 1;
2544 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2545 temp = getenv ("LPATH");
2546 if (temp && ! cross_compile)
2548 char *startp, *endp;
2549 char *nstore = (char *) alloca (strlen (temp) + 3);
2551 startp = endp = temp;
2554 if (*endp == PATH_SEPARATOR || *endp == 0)
2556 strncpy (nstore, startp, endp-startp);
2558 strcpy (nstore, concat (".", dir_separator_str));
2559 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2561 nstore[endp-startp] = DIR_SEPARATOR;
2562 nstore[endp-startp+1] = 0;
2565 nstore[endp-startp] = 0;
2566 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2569 endp = startp = endp + 1;
2576 /* Convert new-style -- options to old-style. */
2577 translate_options (&argc, &argv);
2579 /* Scan argv twice. Here, the first time, just count how many switches
2580 there will be in their vector, and how many input files in theirs.
2581 Here we also parse the switches that cc itself uses (e.g. -v). */
2583 for (i = 1; i < argc; i++)
2585 if (! strcmp (argv[i], "-dumpspecs"))
2587 printf ("*asm:\n%s\n\n", asm_spec);
2588 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2589 printf ("*cpp:\n%s\n\n", cpp_spec);
2590 printf ("*cc1:\n%s\n\n", cc1_spec);
2591 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2592 printf ("*endfile:\n%s\n\n", endfile_spec);
2593 printf ("*link:\n%s\n\n", link_spec);
2594 printf ("*lib:\n%s\n\n", lib_spec);
2595 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2596 printf ("*startfile:\n%s\n\n", startfile_spec);
2597 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2598 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2599 printf ("*predefines:\n%s\n\n", cpp_predefines);
2600 printf ("*cross_compile:\n%d\n\n", cross_compile);
2601 printf ("*multilib:\n%s\n\n", multilib_select);
2605 else if (! strcmp (argv[i], "-dumpversion"))
2607 printf ("%s\n", version_string);
2610 else if (! strcmp (argv[i], "-dumpmachine"))
2612 printf ("%s\n", spec_machine);
2615 else if (! strcmp (argv[i], "-print-search-dirs"))
2616 print_search_dirs = 1;
2617 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2618 print_file_name = "libgcc.a";
2619 else if (! strncmp (argv[i], "-print-file-name=", 17))
2620 print_file_name = argv[i] + 17;
2621 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2622 print_prog_name = argv[i] + 17;
2623 else if (! strcmp (argv[i], "-print-multi-lib"))
2624 print_multi_lib = 1;
2625 else if (! strcmp (argv[i], "-print-multi-directory"))
2626 print_multi_directory = 1;
2627 else if (! strncmp (argv[i], "-Wa,", 4))
2630 /* Pass the rest of this option to the assembler. */
2632 n_assembler_options++;
2633 if (!assembler_options)
2635 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2638 = (char **) xrealloc (assembler_options,
2639 n_assembler_options * sizeof (char **));
2641 /* Split the argument at commas. */
2643 for (j = 4; argv[i][j]; j++)
2644 if (argv[i][j] == ',')
2646 assembler_options[n_assembler_options - 1]
2647 = save_string (argv[i] + prev, j - prev);
2648 n_assembler_options++;
2650 = (char **) xrealloc (assembler_options,
2651 n_assembler_options * sizeof (char **));
2654 /* Record the part after the last comma. */
2655 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2657 else if (! strncmp (argv[i], "-Wp,", 4))
2660 /* Pass the rest of this option to the preprocessor. */
2662 n_preprocessor_options++;
2663 if (!preprocessor_options)
2664 preprocessor_options
2665 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2667 preprocessor_options
2668 = (char **) xrealloc (preprocessor_options,
2669 n_preprocessor_options * sizeof (char **));
2671 /* Split the argument at commas. */
2673 for (j = 4; argv[i][j]; j++)
2674 if (argv[i][j] == ',')
2676 preprocessor_options[n_preprocessor_options - 1]
2677 = save_string (argv[i] + prev, j - prev);
2678 n_preprocessor_options++;
2679 preprocessor_options
2680 = (char **) xrealloc (preprocessor_options,
2681 n_preprocessor_options * sizeof (char **));
2684 /* Record the part after the last comma. */
2685 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2687 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2688 /* The +e options to the C++ front-end. */
2690 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2693 /* Split the argument at commas. */
2694 for (j = 3; argv[i][j]; j++)
2695 n_infiles += (argv[i][j] == ',');
2697 else if (strcmp (argv[i], "-Xlinker") == 0)
2700 fatal ("argument to `-Xlinker' is missing");
2705 else if (strncmp (argv[i], "-l", 2) == 0)
2707 else if (argv[i][0] == '-' && argv[i][1] != 0)
2709 register char *p = &argv[i][1];
2710 register int c = *p;
2715 if (p[1] == 0 && i + 1 == argc)
2716 fatal ("argument to `-b' is missing");
2718 spec_machine = argv[++i];
2720 spec_machine = p + 1;
2725 int *temp = (int *) xmalloc (sizeof (int));
2727 if (p[1] == 0 && i + 1 == argc)
2728 fatal ("argument to `-B' is missing");
2733 add_prefix (&exec_prefixes, value, 1, 0, temp);
2734 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2735 add_prefix (&include_prefixes, concat (value, "include"),
2738 /* As a kludge, if the arg is "[foo/]stageN/", just add
2739 "[foo/]include" to the include prefix. */
2741 int len = strlen (value);
2744 && (value[len - 8] == '/'
2745 || value[len - 8] == DIR_SEPARATOR)))
2746 && strncmp (value + len - 7, "stage", 5) == 0
2747 && isdigit (value[len - 2])
2748 && (value[len - 1] == '/'
2749 || value[len - 1] == DIR_SEPARATOR))
2752 add_prefix (&include_prefixes, "include", 1, 0, 0);
2755 char *string = xmalloc (len + 1);
2756 strncpy (string, value, len-7);
2757 strcat (string, "include");
2758 add_prefix (&include_prefixes, string, 1, 0, 0);
2765 case 'v': /* Print our subcommands and print versions. */
2767 /* If they do anything other than exactly `-v', don't set
2768 verbose_flag; rather, continue on to give the error. */
2775 if (p[1] == 0 && i + 1 == argc)
2776 fatal ("argument to `-V' is missing");
2778 spec_version = argv[++i];
2780 spec_version = p + 1;
2781 compiler_version = spec_version;
2785 if (!strcmp (p, "save-temps"))
2787 save_temps_flag = 1;
2794 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2795 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2796 else if (WORD_SWITCH_TAKES_ARG (p))
2797 i += WORD_SWITCH_TAKES_ARG (p);
2804 /* Set up the search paths before we go looking for config files. */
2806 /* These come before the md prefixes so that we will find gcc's subcommands
2807 (such as cpp) rather than those of the host system. */
2808 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2809 as well as trying the machine and the version. */
2811 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2812 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2815 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2816 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2818 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2821 /* If tooldir is relative, base it on exec_prefixes. A relative
2822 tooldir lets us move the installed tree as a unit.
2824 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2825 directories, so that we can search both the user specified directory
2826 and the standard place. */
2828 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2830 if (gcc_exec_prefix)
2832 char *gcc_exec_tooldir_prefix
2833 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2834 spec_version, dir_separator_str, tooldir_prefix);
2836 add_prefix (&exec_prefixes,
2837 concat3 (gcc_exec_tooldir_prefix, "bin",
2840 add_prefix (&startfile_prefixes,
2841 concat3 (gcc_exec_tooldir_prefix, "lib",
2846 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2847 dir_separator_str, spec_version,
2848 dir_separator_str, tooldir_prefix);
2851 add_prefix (&exec_prefixes,
2852 concat3 (tooldir_prefix, "bin", dir_separator_str),
2854 add_prefix (&startfile_prefixes,
2855 concat3 (tooldir_prefix, "lib", dir_separator_str),
2858 /* More prefixes are enabled in main, after we read the specs file
2859 and determine whether this is cross-compilation or not. */
2862 /* Then create the space for the vectors and scan again. */
2864 switches = ((struct switchstr *)
2865 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2866 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2869 last_language_n_infiles = -1;
2871 /* This, time, copy the text of each switch and store a pointer
2872 to the copy in the vector of switches.
2873 Store all the infiles in their vector. */
2875 for (i = 1; i < argc; i++)
2877 /* Just skip the switches that were handled by the preceding loop. */
2878 if (! strncmp (argv[i], "-Wa,", 4))
2880 else if (! strncmp (argv[i], "-Wp,", 4))
2882 else if (! strcmp (argv[i], "-print-search-dirs"))
2884 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2886 else if (! strncmp (argv[i], "-print-file-name=", 17))
2888 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2890 else if (! strcmp (argv[i], "-print-multi-lib"))
2892 else if (! strcmp (argv[i], "-print-multi-directory"))
2894 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2896 /* Compensate for the +e options to the C++ front-end;
2897 they're there simply for cfront call-compatibility. We do
2898 some magic in default_compilers to pass them down properly.
2899 Note we deliberately start at the `+' here, to avoid passing
2900 -e0 or -e1 down into the linker. */
2901 switches[n_switches].part1 = &argv[i][0];
2902 switches[n_switches].args = 0;
2903 switches[n_switches].live_cond = 0;
2904 switches[n_switches].valid = 0;
2907 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2910 /* Split the argument at commas. */
2912 for (j = 4; argv[i][j]; j++)
2913 if (argv[i][j] == ',')
2915 infiles[n_infiles].language = 0;
2916 infiles[n_infiles++].name
2917 = save_string (argv[i] + prev, j - prev);
2920 /* Record the part after the last comma. */
2921 infiles[n_infiles].language = 0;
2922 infiles[n_infiles++].name = argv[i] + prev;
2924 else if (strcmp (argv[i], "-Xlinker") == 0)
2926 infiles[n_infiles].language = 0;
2927 infiles[n_infiles++].name = argv[++i];
2929 else if (strncmp (argv[i], "-l", 2) == 0)
2931 infiles[n_infiles].language = 0;
2932 infiles[n_infiles++].name = argv[i];
2934 else if (argv[i][0] == '-' && argv[i][1] != 0)
2936 register char *p = &argv[i][1];
2937 register int c = *p;
2939 if (c == 'B' || c == 'b' || c == 'V')
2941 /* Skip a separate arg, if any. */
2948 if (p[1] == 0 && i + 1 == argc)
2949 fatal ("argument to `-x' is missing");
2951 spec_lang = argv[++i];
2954 if (! strcmp (spec_lang, "none"))
2955 /* Suppress the warning if -xnone comes after the last input
2956 file, because alternate command interfaces like g++ might
2957 find it useful to place -xnone after each input file. */
2960 last_language_n_infiles = n_infiles;
2963 switches[n_switches].part1 = p;
2964 /* Deal with option arguments in separate argv elements. */
2965 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2966 || WORD_SWITCH_TAKES_ARG (p))
2969 int n_args = WORD_SWITCH_TAKES_ARG (p);
2973 /* Count only the option arguments in separate argv elements. */
2974 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2976 if (i + n_args >= argc)
2977 fatal ("argument to `-%s' is missing", p);
2978 switches[n_switches].args
2979 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2981 switches[n_switches].args[j++] = argv[++i];
2982 /* Null-terminate the vector. */
2983 switches[n_switches].args[j] = 0;
2985 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2987 /* On some systems, ld cannot handle -o or -L without space.
2988 So split the -o or -L from its argument. */
2989 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2990 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2991 switches[n_switches].args[0] = xmalloc (strlen (p));
2992 strcpy (switches[n_switches].args[0], &p[1]);
2993 switches[n_switches].args[1] = 0;
2996 switches[n_switches].args = 0;
2998 switches[n_switches].live_cond = 0;
2999 switches[n_switches].valid = 0;
3000 /* This is always valid, since gcc.c itself understands it. */
3001 if (!strcmp (p, "save-temps"))
3002 switches[n_switches].valid = 1;
3007 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3009 perror_with_name (argv[i]);
3014 infiles[n_infiles].language = spec_lang;
3015 infiles[n_infiles++].name = argv[i];
3020 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3021 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3023 switches[n_switches].part1 = 0;
3024 infiles[n_infiles].name = 0;
3026 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
3027 if (gcc_exec_prefix)
3029 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
3030 + strlen (spec_machine) + 3);
3031 strcpy (temp, gcc_exec_prefix);
3032 strcat (temp, spec_machine);
3033 strcat (temp, dir_separator_str);
3034 strcat (temp, spec_version);
3035 strcat (temp, dir_separator_str);
3036 gcc_exec_prefix = temp;
3040 /* Process a spec string, accumulating and running commands. */
3042 /* These variables describe the input file name.
3043 input_file_number is the index on outfiles of this file,
3044 so that the output file name can be stored for later use by %o.
3045 input_basename is the start of the part of the input file
3046 sans all directory names, and basename_length is the number
3047 of characters starting there excluding the suffix .c or whatever. */
3049 static char *input_filename;
3050 static int input_file_number;
3051 static int input_filename_length;
3052 static int basename_length;
3053 static char *input_basename;
3054 static char *input_suffix;
3056 /* These are variables used within do_spec and do_spec_1. */
3058 /* Nonzero if an arg has been started and not yet terminated
3059 (with space, tab or newline). */
3060 static int arg_going;
3062 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3063 is a temporary file name. */
3064 static int delete_this_arg;
3066 /* Nonzero means %w has been seen; the next arg to be terminated
3067 is the output file name of this compilation. */
3068 static int this_is_output_file;
3070 /* Nonzero means %s has been seen; the next arg to be terminated
3071 is the name of a library file and we should try the standard
3072 search dirs for it. */
3073 static int this_is_library_file;
3075 /* Nonzero means that the input of this command is coming from a pipe. */
3076 static int input_from_pipe;
3078 /* Process the spec SPEC and run the commands specified therein.
3079 Returns 0 if the spec is successfully processed; -1 if failed. */
3089 delete_this_arg = 0;
3090 this_is_output_file = 0;
3091 this_is_library_file = 0;
3092 input_from_pipe = 0;
3094 value = do_spec_1 (spec, 0, NULL_PTR);
3096 /* Force out any unfinished command.
3097 If -pipe, this forces out the last command if it ended in `|'. */
3100 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3103 if (argbuf_index > 0)
3110 /* Process the sub-spec SPEC as a portion of a larger spec.
3111 This is like processing a whole spec except that we do
3112 not initialize at the beginning and we do not supply a
3113 newline by default at the end.
3114 INSWITCH nonzero means don't process %-sequences in SPEC;
3115 in this case, % is treated as an ordinary character.
3116 This is used while substituting switches.
3117 INSWITCH nonzero also causes SPC not to terminate an argument.
3119 Value is zero unless a line was finished
3120 and the command on that line reported an error. */
3123 do_spec_1 (spec, inswitch, soft_matched_part)
3126 char *soft_matched_part;
3128 register char *p = spec;
3135 /* If substituting a switch, treat all chars like letters.
3136 Otherwise, NL, SPC, TAB and % are special. */
3137 switch (inswitch ? 'a' : c)
3140 /* End of line: finish any pending argument,
3141 then run the pending command if one has been started. */
3144 obstack_1grow (&obstack, 0);
3145 string = obstack_finish (&obstack);
3146 if (this_is_library_file)
3147 string = find_file (string);
3148 store_arg (string, delete_this_arg, this_is_output_file);
3149 if (this_is_output_file)
3150 outfiles[input_file_number] = string;
3154 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3157 for (i = 0; i < n_switches; i++)
3158 if (!strcmp (switches[i].part1, "pipe"))
3161 /* A `|' before the newline means use a pipe here,
3162 but only if -pipe was specified.
3163 Otherwise, execute now and don't pass the `|' as an arg. */
3166 input_from_pipe = 1;
3167 switches[i].valid = 1;
3174 if (argbuf_index > 0)
3180 /* Reinitialize for a new command, and for a new argument. */
3183 delete_this_arg = 0;
3184 this_is_output_file = 0;
3185 this_is_library_file = 0;
3186 input_from_pipe = 0;
3190 /* End any pending argument. */
3193 obstack_1grow (&obstack, 0);
3194 string = obstack_finish (&obstack);
3195 if (this_is_library_file)
3196 string = find_file (string);
3197 store_arg (string, delete_this_arg, this_is_output_file);
3198 if (this_is_output_file)
3199 outfiles[input_file_number] = string;
3203 obstack_1grow (&obstack, c);
3209 /* Space or tab ends an argument if one is pending. */
3212 obstack_1grow (&obstack, 0);
3213 string = obstack_finish (&obstack);
3214 if (this_is_library_file)
3215 string = find_file (string);
3216 store_arg (string, delete_this_arg, this_is_output_file);
3217 if (this_is_output_file)
3218 outfiles[input_file_number] = string;
3220 /* Reinitialize for a new argument. */
3222 delete_this_arg = 0;
3223 this_is_output_file = 0;
3224 this_is_library_file = 0;
3231 fatal ("Invalid specification! Bug in cc.");
3234 obstack_grow (&obstack, input_basename, basename_length);
3239 delete_this_arg = 2;
3242 /* Dump out the directories specified with LIBRARY_PATH,
3243 followed by the absolute directories
3244 that we search for startfiles. */
3247 struct prefix_list *pl = startfile_prefixes.plist;
3249 char *buffer = (char *) xmalloc (bufsize);
3252 for (; pl; pl = pl->next)
3254 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3255 /* Used on systems which record the specified -L dirs
3256 and use them to search for dynamic linking. */
3257 /* Relative directories always come from -B,
3258 and it is better not to use them for searching
3259 at run time. In particular, stage1 loses */
3260 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3263 /* Try subdirectory if there is one. */
3264 if (multilib_dir != NULL)
3268 if (strlen (pl->prefix) + strlen (machine_suffix)
3270 bufsize = (strlen (pl->prefix)
3271 + strlen (machine_suffix)) * 2 + 1;
3272 buffer = (char *) xrealloc (buffer, bufsize);
3273 strcpy (buffer, pl->prefix);
3274 strcat (buffer, machine_suffix);
3275 if (is_directory (buffer, multilib_dir, 1))
3277 do_spec_1 ("-L", 0, NULL_PTR);
3278 #ifdef SPACE_AFTER_L_OPTION
3279 do_spec_1 (" ", 0, NULL_PTR);
3281 do_spec_1 (buffer, 1, NULL_PTR);
3282 do_spec_1 (multilib_dir, 1, NULL_PTR);
3283 /* Make this a separate argument. */
3284 do_spec_1 (" ", 0, NULL_PTR);
3287 if (!pl->require_machine_suffix)
3289 if (is_directory (pl->prefix, multilib_dir, 1))
3291 do_spec_1 ("-L", 0, NULL_PTR);
3292 #ifdef SPACE_AFTER_L_OPTION
3293 do_spec_1 (" ", 0, NULL_PTR);
3295 do_spec_1 (pl->prefix, 1, NULL_PTR);
3296 do_spec_1 (multilib_dir, 1, NULL_PTR);
3297 /* Make this a separate argument. */
3298 do_spec_1 (" ", 0, NULL_PTR);
3304 if (is_directory (pl->prefix, machine_suffix, 1))
3306 do_spec_1 ("-L", 0, NULL_PTR);
3307 #ifdef SPACE_AFTER_L_OPTION
3308 do_spec_1 (" ", 0, NULL_PTR);
3310 do_spec_1 (pl->prefix, 1, NULL_PTR);
3311 /* Remove slash from machine_suffix. */
3312 if (strlen (machine_suffix) >= bufsize)
3313 bufsize = strlen (machine_suffix) * 2 + 1;
3314 buffer = (char *) xrealloc (buffer, bufsize);
3315 strcpy (buffer, machine_suffix);
3316 idx = strlen (buffer);
3317 if (buffer[idx - 1] == '/'
3318 || buffer[idx - 1] == DIR_SEPARATOR)
3319 buffer[idx - 1] = 0;
3320 do_spec_1 (buffer, 1, NULL_PTR);
3321 /* Make this a separate argument. */
3322 do_spec_1 (" ", 0, NULL_PTR);
3325 if (!pl->require_machine_suffix)
3327 if (is_directory (pl->prefix, "", 1))
3329 do_spec_1 ("-L", 0, NULL_PTR);
3330 #ifdef SPACE_AFTER_L_OPTION
3331 do_spec_1 (" ", 0, NULL_PTR);
3333 /* Remove slash from pl->prefix. */
3334 if (strlen (pl->prefix) >= bufsize)
3335 bufsize = strlen (pl->prefix) * 2 + 1;
3336 buffer = (char *) xrealloc (buffer, bufsize);
3337 strcpy (buffer, pl->prefix);
3338 idx = strlen (buffer);
3339 if (buffer[idx - 1] == '/'
3340 || buffer[idx - 1] == DIR_SEPARATOR)
3341 buffer[idx - 1] = 0;
3342 do_spec_1 (buffer, 1, NULL_PTR);
3343 /* Make this a separate argument. */
3344 do_spec_1 (" ", 0, NULL_PTR);
3353 /* {...:%efoo} means report an error with `foo' as error message
3354 and don't execute any more commands for this file. */
3358 while (*p != 0 && *p != '\n') p++;
3359 buf = (char *) alloca (p - q + 1);
3360 strncpy (buf, q, p - q);
3370 if (save_temps_flag)
3372 obstack_grow (&obstack, input_basename, basename_length);
3373 delete_this_arg = 0;
3377 #ifdef MKTEMP_EACH_FILE
3378 /* ??? This has a problem: the total number of
3379 values mktemp can return is limited.
3380 That matters for the names of object files.
3381 In 2.4, do something about that. */
3382 struct temp_name *t;
3384 while (*p == '.' || isalpha (*p))
3387 /* See if we already have an association of %g/%u/%U and
3389 for (t = temp_names; t; t = t->next)
3390 if (t->length == p - suffix
3391 && strncmp (t->suffix, suffix, p - suffix) == 0
3392 && t->unique == (c != 'g'))
3395 /* Make a new association if needed. %u requires one. */
3396 if (t == 0 || c == 'u')
3400 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3401 t->next = temp_names;
3404 t->length = p - suffix;
3405 t->suffix = save_string (suffix, p - suffix);
3406 t->unique = (c != 'g');
3407 choose_temp_base ();
3408 t->filename = temp_filename;
3409 t->filename_length = temp_filename_length;
3412 obstack_grow (&obstack, t->filename, t->filename_length);
3413 delete_this_arg = 1;
3415 obstack_grow (&obstack, temp_filename, temp_filename_length);
3416 if (c == 'u' || c == 'U')
3422 sprintf (buff, "%d", unique);
3423 obstack_grow (&obstack, buff, strlen (buff));
3426 delete_this_arg = 1;
3432 obstack_grow (&obstack, input_filename, input_filename_length);
3438 struct prefix_list *pl = include_prefixes.plist;
3440 if (gcc_exec_prefix)
3442 do_spec_1 ("-iprefix", 1, NULL_PTR);
3443 /* Make this a separate argument. */
3444 do_spec_1 (" ", 0, NULL_PTR);
3445 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3446 do_spec_1 (" ", 0, NULL_PTR);
3449 for (; pl; pl = pl->next)
3451 do_spec_1 ("-isystem", 1, NULL_PTR);
3452 /* Make this a separate argument. */
3453 do_spec_1 (" ", 0, NULL_PTR);
3454 do_spec_1 (pl->prefix, 1, NULL_PTR);
3455 do_spec_1 (" ", 0, NULL_PTR);
3463 for (f = 0; f < n_infiles; f++)
3464 store_arg (outfiles[f], 0, 0);
3469 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3474 this_is_library_file = 1;
3478 this_is_output_file = 1;
3483 int index = argbuf_index;
3484 /* Handle the {...} following the %W. */
3487 p = handle_braces (p + 1);
3490 /* If any args were output, mark the last one for deletion
3492 if (argbuf_index != index)
3493 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3497 /* %x{OPTION} records OPTION for %X to output. */
3503 /* Skip past the option value and make a copy. */
3508 string = save_string (p1 + 1, p - p1 - 2);
3510 /* See if we already recorded this option. */
3511 for (i = 0; i < n_linker_options; i++)
3512 if (! strcmp (string, linker_options[i]))
3518 /* This option is new; add it. */
3520 if (!linker_options)
3522 = (char **) xmalloc (n_linker_options * sizeof (char **));
3525 = (char **) xrealloc (linker_options,
3526 n_linker_options * sizeof (char **));
3528 linker_options[n_linker_options - 1] = string;
3532 /* Dump out the options accumulated previously using %x. */
3534 for (i = 0; i < n_linker_options; i++)
3536 do_spec_1 (linker_options[i], 1, NULL_PTR);
3537 /* Make each accumulated option a separate argument. */
3538 do_spec_1 (" ", 0, NULL_PTR);
3542 /* Dump out the options accumulated previously using -Wa,. */
3544 for (i = 0; i < n_assembler_options; i++)
3546 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3547 /* Make each accumulated option a separate argument. */
3548 do_spec_1 (" ", 0, NULL_PTR);
3552 /* Dump out the options accumulated previously using -Wp,. */
3554 for (i = 0; i < n_preprocessor_options; i++)
3556 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3557 /* Make each accumulated option a separate argument. */
3558 do_spec_1 (" ", 0, NULL_PTR);
3562 /* Here are digits and numbers that just process
3563 a certain constant string as a spec. */
3566 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3572 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3578 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3584 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3590 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3596 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3602 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3608 value = do_spec_1 (link_spec, 0, NULL_PTR);
3614 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3620 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3627 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3631 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3635 if (! strncmp (y, "-D", 2))
3636 /* Copy the whole option. */
3637 while (*y && *y != ' ' && *y != '\t')
3639 else if (*y == ' ' || *y == '\t')
3640 /* Copy whitespace to the result. */
3642 /* Don't copy other options. */
3649 value = do_spec_1 (buf, 0, NULL_PTR);
3657 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3661 /* Copy all of CPP_PREDEFINES into BUF,
3662 but put __ after every -D and at the end of each arg. */
3666 if (! strncmp (y, "-D", 2))
3674 || (*(y+1) != '_' && ! isupper (*(y+1))))
3676 /* Stick __ at front of macro name. */
3679 /* Arrange to stick __ at the end as well. */
3683 /* Copy the macro name. */
3684 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3693 /* Copy the value given, if any. */
3694 while (*y && *y != ' ' && *y != '\t')
3697 else if (*y == ' ' || *y == '\t')
3698 /* Copy whitespace to the result. */
3700 /* Don't copy -A options */
3706 /* Copy all of CPP_PREDEFINES into BUF,
3707 but put __ after every -D. */
3711 if (! strncmp (y, "-D", 2))
3716 || (*(y+1) != '_' && ! isupper (*(y+1))))
3718 /* Stick -D__ at front of macro name. */
3724 /* Copy the macro name. */
3725 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3728 /* Copy the value given, if any. */
3729 while (*y && *y != ' ' && *y != '\t')
3734 /* Do not copy this macro - we have just done it before */
3735 while (*y && *y != ' ' && *y != '\t')
3739 else if (*y == ' ' || *y == '\t')
3740 /* Copy whitespace to the result. */
3742 /* Don't copy -A options */
3748 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3752 if (! strncmp (y, "-A", 2))
3753 /* Copy the whole option. */
3754 while (*y && *y != ' ' && *y != '\t')
3756 else if (*y == ' ' || *y == '\t')
3757 /* Copy whitespace to the result. */
3759 /* Don't copy other options. */
3766 value = do_spec_1 (buf, 0, NULL_PTR);
3773 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3778 /* Here we define characters other than letters and digits. */
3781 p = handle_braces (p);
3787 obstack_1grow (&obstack, '%');
3791 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3792 do_spec_1 (" ", 0, NULL_PTR);
3795 /* Process a string found as the value of a spec given by name.
3796 This feature allows individual machine descriptions
3797 to add and use their own specs.
3798 %[...] modifies -D options the way %P does;
3799 %(...) uses the spec unmodified. */
3804 struct spec_list *sl;
3807 /* The string after the S/P is the name of a spec that is to be
3809 while (*p && *p != ')' && *p != ']')
3812 /* See if it's in the list */
3813 for (len = p - name, sl = specs; sl; sl = sl->next)
3814 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3824 value = do_spec_1 (name, 0, NULL_PTR);
3830 char *x = (char *) alloca (strlen (name) * 2 + 1);
3834 /* Copy all of NAME into BUF, but put __ after
3835 every -D and at the end of each arg, */
3838 if (! strncmp (y, "-D", 2))
3846 else if (*y == ' ' || *y == 0)
3860 value = do_spec_1 (buf, 0, NULL_PTR);
3866 /* Discard the closing paren or bracket. */
3874 int c1 = *p++; /* Select first or second version number. */
3875 char *v = compiler_version;
3877 /* If desired, advance to second version number. */
3880 /* Set P after the first period. */
3881 while (*v != 0 && *v != ' ' && *v != '.')
3886 /* Set Q at the next period or at the end. */
3888 while (*q != 0 && *q != ' ' && *q != '.')
3890 /* Empty string means zero. */
3896 /* Put that part into the command. */
3897 obstack_grow (&obstack, v, q - v);
3903 if (input_from_pipe)
3904 do_spec_1 ("-", 0, NULL_PTR);
3913 /* Backslash: treat next character as ordinary. */
3918 /* Ordinary character: put it into the current argument. */
3919 obstack_1grow (&obstack, c);
3923 return 0; /* End of string */
3926 /* Return 0 if we call do_spec_1 and that returns -1. */
3939 /* A `|' after the open-brace means,
3940 if the test fails, output a single minus sign rather than nothing.
3941 This is used in %{|!pipe:...}. */
3945 /* A `!' after the open-brace negates the condition:
3946 succeed if the specified switch is not present. */
3950 /* A `.' after the open-brace means test against the current suffix. */
3960 while (*p != ':' && *p != '}') p++;
3963 register int count = 1;
3981 int found = (input_suffix != 0
3982 && strlen (input_suffix) == p - filter
3983 && strncmp (input_suffix, filter, p - filter) == 0);
3989 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3994 else if (p[-1] == '*' && p[0] == '}')
3996 /* Substitute all matching switches as separate args. */
3999 for (i = 0; i < n_switches; i++)
4000 if (!strncmp (switches[i].part1, filter, p - filter)
4001 && check_live_switch (i, p - filter))
4006 /* Test for presence of the specified switch. */
4010 /* If name specified ends in *, as in {x*:...},
4011 check for %* and handle that case. */
4012 if (p[-1] == '*' && !negate)
4017 /* First see whether we have %*. */
4021 if (*r == '%' && r[1] == '*')
4025 /* If we do, handle that case. */
4028 /* Substitute all matching switches as separate args.
4029 But do this by substituting for %*
4030 in the text that follows the colon. */
4032 unsigned hard_match_len = p - filter - 1;
4033 char *string = save_string (p + 1, q - p - 2);
4035 for (i = 0; i < n_switches; i++)
4036 if (!strncmp (switches[i].part1, filter, hard_match_len)
4037 && check_live_switch (i, -1))
4039 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4040 /* Pass any arguments this switch has. */
4048 /* If name specified ends in *, as in {x*:...},
4049 check for presence of any switch name starting with x. */
4052 for (i = 0; i < n_switches; i++)
4054 unsigned hard_match_len = p - filter - 1;
4056 if (!strncmp (switches[i].part1, filter, hard_match_len)
4057 && check_live_switch (i, hard_match_len))
4063 /* Otherwise, check for presence of exact name specified. */
4066 for (i = 0; i < n_switches; i++)
4068 if (!strncmp (switches[i].part1, filter, p - filter)
4069 && switches[i].part1[p - filter] == 0
4070 && check_live_switch (i, -1))
4078 /* If it is as desired (present for %{s...}, absent for %{-s...})
4079 then substitute either the switch or the specified
4080 conditional text. */
4081 if (present != negate)
4089 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4095 /* Here if a %{|...} conditional fails: output a minus sign,
4096 which means "standard output" or "standard input". */
4097 do_spec_1 ("-", 0, NULL_PTR);
4104 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4105 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4106 spec, or -1 if either exact match or %* is used.
4108 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4109 whose value does not begin with "no-" is obsoleted by the same value
4110 with the "no-", similarly for a switch with the "no-" prefix. */
4113 check_live_switch (switchnum, prefix_length)
4117 char *name = switches[switchnum].part1;
4120 /* In the common case of {<at-most-one-letter>*}, a negating
4121 switch would always match, so ignore that case. We will just
4122 send the conflicting switches to the compiler phase. */
4123 if (prefix_length >= 0 && prefix_length <= 1)
4126 /* If we already processed this switch and determined if it was
4127 live or not, return our past determination. */
4128 if (switches[switchnum].live_cond != 0)
4129 return switches[switchnum].live_cond > 0;
4131 /* Now search for duplicate in a manner that depends on the name. */
4135 for (i = switchnum + 1; i < n_switches; i++)
4136 if (switches[i].part1[0] == 'O')
4138 switches[switchnum].valid = 1;
4139 switches[switchnum].live_cond = -1;
4144 case 'W': case 'f': case 'm':
4145 if (! strncmp (name + 1, "no-", 3))
4147 /* We have Xno-YYY, search for XYYY. */
4148 for (i = switchnum + 1; i < n_switches; i++)
4149 if (switches[i].part1[0] == name[0]
4150 && ! strcmp (&switches[i].part1[1], &name[4]))
4152 switches[switchnum].valid = 1;
4153 switches[switchnum].live_cond = -1;
4159 /* We have XYYY, search for Xno-YYY. */
4160 for (i = switchnum + 1; i < n_switches; i++)
4161 if (switches[i].part1[0] == name[0]
4162 && switches[i].part1[1] == 'n'
4163 && switches[i].part1[2] == 'o'
4164 && switches[i].part1[3] == '-'
4165 && !strcmp (&switches[i].part1[4], &name[1]))
4167 switches[switchnum].valid = 1;
4168 switches[switchnum].live_cond = -1;
4175 /* Otherwise the switch is live. */
4176 switches[switchnum].live_cond = 1;
4180 /* Pass a switch to the current accumulating command
4181 in the same form that we received it.
4182 SWITCHNUM identifies the switch; it is an index into
4183 the vector of switches gcc received, which is `switches'.
4184 This cannot fail since it never finishes a command line.
4186 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4189 give_switch (switchnum, omit_first_word)
4191 int omit_first_word;
4193 if (!omit_first_word)
4195 do_spec_1 ("-", 0, NULL_PTR);
4196 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4198 do_spec_1 (" ", 0, NULL_PTR);
4199 if (switches[switchnum].args != 0)
4202 for (p = switches[switchnum].args; *p; p++)
4204 do_spec_1 (*p, 1, NULL_PTR);
4205 do_spec_1 (" ", 0, NULL_PTR);
4208 switches[switchnum].valid = 1;
4211 /* Search for a file named NAME trying various prefixes including the
4212 user's -B prefix and some standard ones.
4213 Return the absolute file name found. If nothing is found, return NAME. */
4221 /* Try multilib_dir if it is defined. */
4222 if (multilib_dir != NULL)
4226 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4227 strcpy (try, multilib_dir);
4228 strcat (try, dir_separator_str);
4231 newname = find_a_file (&startfile_prefixes, try, R_OK);
4233 /* If we don't find it in the multi library dir, then fall
4234 through and look for it in the normal places. */
4235 if (newname != NULL)
4239 newname = find_a_file (&startfile_prefixes, name, R_OK);
4240 return newname ? newname : name;
4243 /* Determine whether a directory exists. If LINKER, return 0 for
4244 certain fixed names not needed by the linker. If not LINKER, it is
4245 only important to return 0 if the host machine has a small ARG_MAX
4249 is_directory (path1, path2, linker)
4254 int len1 = strlen (path1);
4255 int len2 = strlen (path2);
4256 char *path = (char *) alloca (3 + len1 + len2);
4260 #ifndef SMALL_ARG_MAX
4265 /* Construct the path from the two parts. Ensure the string ends with "/.".
4266 The resulting path will be a directory even if the given path is a
4268 bcopy (path1, path, len1);
4269 bcopy (path2, path + len1, len2);
4270 cp = path + len1 + len2;
4271 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4272 *cp++ = DIR_SEPARATOR;
4276 /* Exclude directories that the linker is known to search. */
4279 && strcmp (path, concat4 (dir_separator_str, "lib",
4280 dir_separator_str, ".")) == 0)
4282 && strcmp (path, concat6 (dir_separator_str, "usr",
4283 dir_separator_str, "lib",
4284 dir_separator_str, ".")) == 0)))
4287 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4290 /* On fatal signals, delete all the temporary files. */
4293 fatal_error (signum)
4296 signal (signum, SIG_DFL);
4297 delete_failure_queue ();
4298 delete_temp_files ();
4299 /* Get the same signal again, this time not handled,
4300 so its normal effect occurs. */
4301 kill (getpid (), signum);
4312 int linker_was_run = 0;
4313 char *explicit_link_files;
4317 p = argv[0] + strlen (argv[0]);
4318 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4321 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4322 signal (SIGINT, fatal_error);
4324 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4325 signal (SIGHUP, fatal_error);
4327 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4328 signal (SIGTERM, fatal_error);
4330 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4331 signal (SIGPIPE, fatal_error);
4335 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4337 obstack_init (&obstack);
4339 /* Set up to remember the pathname of gcc and any options
4340 needed for collect. We use argv[0] instead of programname because
4341 we need the complete pathname. */
4342 obstack_init (&collect_obstack);
4343 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4344 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4345 putenv (obstack_finish (&collect_obstack));
4347 /* Choose directory for temp files. */
4349 choose_temp_base ();
4351 /* Make a table of what switches there are (switches, n_switches).
4352 Make a table of specified input files (infiles, n_infiles).
4353 Decode switches that are handled locally. */
4355 process_command (argc, argv);
4357 /* Initialize the vector of specs to just the default.
4358 This means one element containing 0s, as a terminator. */
4360 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4361 bcopy ((char *) default_compilers, (char *) compilers,
4362 sizeof default_compilers);
4363 n_compilers = n_default_compilers;
4365 /* Read specs from a file if there is one. */
4367 machine_suffix = concat4 (spec_machine, dir_separator_str,
4368 spec_version, dir_separator_str);
4369 just_machine_suffix = concat (spec_machine, dir_separator_str);
4371 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4372 /* Read the specs file unless it is a default one. */
4373 if (specs_file != 0 && strcmp (specs_file, "specs"))
4374 read_specs (specs_file);
4376 /* If not cross-compiling, look for startfiles in the standard places. */
4377 /* The fact that these are done here, after reading the specs file,
4378 means that it cannot be found in these directories.
4379 But that's okay. It should never be there anyway. */
4382 #ifdef MD_EXEC_PREFIX
4383 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4384 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4387 #ifdef MD_STARTFILE_PREFIX
4388 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4391 #ifdef MD_STARTFILE_PREFIX_1
4392 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4395 /* If standard_startfile_prefix is relative, base it on
4396 standard_exec_prefix. This lets us move the installed tree
4397 as a unit. If GCC_EXEC_PREFIX is defined, base
4398 standard_startfile_prefix on that as well. */
4399 if (*standard_startfile_prefix == '/'
4400 || *standard_startfile_prefix == DIR_SEPARATOR)
4401 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4405 if (gcc_exec_prefix)
4406 add_prefix (&startfile_prefixes,
4407 concat (gcc_exec_prefix, standard_startfile_prefix),
4409 add_prefix (&startfile_prefixes,
4410 concat3 (standard_exec_prefix,
4412 standard_startfile_prefix),
4416 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4418 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4420 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4421 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4425 /* Now we have the specs.
4426 Set the `valid' bits for switches that match anything in any spec. */
4428 validate_all_switches ();
4430 /* Now that we have the switches and the specs, set
4431 the subdirectory based on the options. */
4432 set_multilib_dir ();
4434 /* Warn about any switches that no pass was interested in. */
4436 for (i = 0; i < n_switches; i++)
4437 if (! switches[i].valid)
4438 error ("unrecognized option `-%s'", switches[i].part1);
4440 /* Obey some of the options. */
4442 if (print_search_dirs)
4444 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4445 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4446 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4450 if (print_file_name)
4452 printf ("%s\n", find_file (print_file_name));
4456 if (print_prog_name)
4458 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4459 printf ("%s\n", (newname ? newname : print_prog_name));
4463 if (print_multi_lib)
4465 print_multilib_info ();
4469 if (print_multi_directory)
4471 if (multilib_dir == NULL)
4474 printf ("%s\n", multilib_dir);
4480 if (! strcmp (version_string, compiler_version))
4481 fprintf (stderr, "gcc version %s\n", version_string);
4483 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4484 version_string, compiler_version);
4491 fatal ("No input files");
4493 /* Make a place to record the compiler output file names
4494 that correspond to the input files. */
4496 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4497 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4499 /* Record which files were specified explicitly as link input. */
4501 explicit_link_files = xmalloc (n_infiles);
4502 bzero (explicit_link_files, n_infiles);
4504 for (i = 0; i < n_infiles; i++)
4506 register struct compiler *cp = 0;
4507 int this_file_error = 0;
4509 /* Tell do_spec what to substitute for %i. */
4511 input_filename = infiles[i].name;
4512 input_filename_length = strlen (input_filename);
4513 input_file_number = i;
4515 /* Use the same thing in %o, unless cp->spec says otherwise. */
4517 outfiles[i] = input_filename;
4519 /* Figure out which compiler from the file's suffix. */
4521 cp = lookup_compiler (infiles[i].name, input_filename_length,
4522 infiles[i].language);
4526 /* Ok, we found an applicable compiler. Run its spec. */
4527 /* First say how much of input_filename to substitute for %b */
4531 input_basename = input_filename;
4532 for (p = input_filename; *p; p++)
4533 if (*p == '/' || *p == DIR_SEPARATOR)
4534 input_basename = p + 1;
4536 /* Find a suffix starting with the last period,
4537 and set basename_length to exclude that suffix. */
4538 basename_length = strlen (input_basename);
4539 p = input_basename + basename_length;
4540 while (p != input_basename && *p != '.') --p;
4541 if (*p == '.' && p != input_basename)
4543 basename_length = p - input_basename;
4544 input_suffix = p + 1;
4550 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4552 len += strlen (cp->spec[j]);
4554 p = (char *) xmalloc (len + 1);
4557 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4560 strcpy (p + len, cp->spec[j]);
4561 len += strlen (cp->spec[j]);
4564 value = do_spec (p);
4567 this_file_error = 1;
4570 /* If this file's name does not contain a recognized suffix,
4571 record it as explicit linker input. */
4574 explicit_link_files[i] = 1;
4576 /* Clear the delete-on-failure queue, deleting the files in it
4577 if this compilation failed. */
4579 if (this_file_error)
4581 delete_failure_queue ();
4584 /* If this compilation succeeded, don't delete those files later. */
4585 clear_failure_queue ();
4588 /* Run ld to link all the compiler output files. */
4590 if (error_count == 0)
4592 int tmp = execution_count;
4596 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4598 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4599 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4601 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4603 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4604 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4607 for (i = 0; i < n_switches; i++)
4611 obstack_grow (&collect_obstack, " ", 1);
4614 obstack_grow (&collect_obstack, "-", 1);
4615 obstack_grow (&collect_obstack, switches[i].part1,
4616 strlen (switches[i].part1));
4618 for (args = switches[i].args; args && *args; args++)
4620 obstack_grow (&collect_obstack, " ", 1);
4621 obstack_grow (&collect_obstack, *args, strlen (*args));
4624 obstack_grow (&collect_obstack, "\0", 1);
4625 putenv (obstack_finish (&collect_obstack));
4627 value = do_spec (link_command_spec);
4630 linker_was_run = (tmp != execution_count);
4633 /* Warn if a -B option was specified but the prefix was never used. */
4634 unused_prefix_warnings (&exec_prefixes);
4635 unused_prefix_warnings (&startfile_prefixes);
4637 /* If options said don't run linker,
4638 complain about input files to be given to the linker. */
4640 if (! linker_was_run && error_count == 0)
4641 for (i = 0; i < n_infiles; i++)
4642 if (explicit_link_files[i])
4643 error ("%s: linker input file unused since linking not done",
4646 /* Delete some or all of the temporary files we made. */
4649 delete_failure_queue ();
4650 delete_temp_files ();
4652 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4657 /* Find the proper compilation spec for the file name NAME,
4658 whose length is LENGTH. LANGUAGE is the specified language,
4659 or 0 if none specified. */
4661 static struct compiler *
4662 lookup_compiler (name, length, language)
4667 struct compiler *cp;
4669 /* Look for the language, if one is spec'd. */
4672 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4676 if (cp->suffix[0] == '@'
4677 && !strcmp (cp->suffix + 1, language))
4681 error ("language %s not recognized", language);
4684 /* Look for a suffix. */
4685 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4687 if (/* The suffix `-' matches only the file name `-'. */
4688 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4690 (strlen (cp->suffix) < length
4691 /* See if the suffix matches the end of NAME. */
4693 && (!strcmp (cp->suffix,
4694 name + length - strlen (cp->suffix))
4695 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4696 && !strcasecmp (cp->suffix,
4697 name + length - strlen (cp->suffix)))))
4699 && !strcmp (cp->suffix,
4700 name + length - strlen (cp->suffix))))
4703 if (cp->spec[0][0] == '@')
4705 struct compiler *new;
4706 /* An alias entry maps a suffix to a language.
4707 Search for the language; pass 0 for NAME and LENGTH
4708 to avoid infinite recursion if language not found.
4709 Construct the new compiler spec. */
4710 language = cp->spec[0] + 1;
4711 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4712 new->suffix = cp->suffix;
4713 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4714 (char *) new->spec, sizeof new->spec);
4717 /* A non-alias entry: return it. */
4729 register char *value = (char *) malloc (size);
4731 fatal ("virtual memory exhausted");
4736 xrealloc (ptr, size)
4740 register char *value = (char *) realloc (ptr, size);
4742 fatal ("virtual memory exhausted");
4746 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4752 int len1 = strlen (s1);
4753 int len2 = strlen (s2);
4754 char *result = xmalloc (len1 + len2 + 1);
4756 strcpy (result, s1);
4757 strcpy (result + len1, s2);
4758 *(result + len1 + len2) = 0;
4764 concat3 (s1, s2, s3)
4767 return concat (concat (s1, s2), s3);
4771 concat4 (s1, s2, s3, s4)
4772 char *s1, *s2, *s3, *s4;
4774 return concat (concat (s1, s2), concat (s3, s4));
4778 concat6 (s1, s2, s3, s4, s5, s6)
4779 char *s1, *s2, *s3, *s4, *s5, *s6;
4781 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4785 save_string (s, len)
4789 register char *result = xmalloc (len + 1);
4791 bcopy (s, result, len);
4797 pfatal_with_name (name)
4802 if (errno < sys_nerr)
4803 s = concat ("%s: ", sys_errlist[errno]);
4805 s = "cannot open %s";
4810 perror_with_name (name)
4815 if (errno < sys_nerr)
4816 s = concat ("%s: ", sys_errlist[errno]);
4818 s = "cannot open %s";
4828 if (errno < sys_nerr)
4829 s = concat ("installation problem, cannot exec %s: ", sys_errlist[errno]);
4831 s = "installation problem, cannot exec %s";
4835 /* More 'friendly' abort that prints the line and file.
4836 config.h can #define abort fancy_abort if you like that sort of thing. */
4841 fatal ("Internal gcc abort.");
4846 /* Output an error message and exit */
4849 fatal VPROTO((char *format, ...))
4856 VA_START (ap, format);
4859 format = va_arg (ap, char*);
4862 fprintf (stderr, "%s: ", programname);
4863 vfprintf (stderr, format, ap);
4865 fprintf (stderr, "\n");
4866 delete_temp_files ();
4871 error VPROTO((char *format, ...))
4878 VA_START (ap, format);
4881 format = va_arg (ap, char*);
4884 fprintf (stderr, "%s: ", programname);
4885 vfprintf (stderr, format, ap);
4888 fprintf (stderr, "\n");
4891 #else /* not HAVE_VPRINTF */
4894 fatal (msg, arg1, arg2)
4895 char *msg, *arg1, *arg2;
4897 error (msg, arg1, arg2);
4898 delete_temp_files ();
4903 error (msg, arg1, arg2)
4904 char *msg, *arg1, *arg2;
4906 fprintf (stderr, "%s: ", programname);
4907 fprintf (stderr, msg, arg1, arg2);
4908 fprintf (stderr, "\n");
4911 #endif /* not HAVE_VPRINTF */
4915 validate_all_switches ()
4917 struct compiler *comp;
4920 struct spec_list *spec;
4922 for (comp = compilers; comp->spec[0]; comp++)
4925 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4929 if (c == '%' && *p == '{')
4930 /* We have a switch spec. */
4931 validate_switches (p + 1);
4935 /* look through the linked list of extra specs read from the specs file */
4936 for (spec = specs; spec ; spec = spec->next)
4940 if (c == '%' && *p == '{')
4941 /* We have a switch spec. */
4942 validate_switches (p + 1);
4945 p = link_command_spec;
4947 if (c == '%' && *p == '{')
4948 /* We have a switch spec. */
4949 validate_switches (p + 1);
4951 /* Now notice switches mentioned in the machine-specific specs. */
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);
4971 p = signed_char_spec;
4973 if (c == '%' && *p == '{')
4974 /* We have a switch spec. */
4975 validate_switches (p + 1);
4979 if (c == '%' && *p == '{')
4980 /* We have a switch spec. */
4981 validate_switches (p + 1);
4985 if (c == '%' && *p == '{')
4986 /* We have a switch spec. */
4987 validate_switches (p + 1);
4991 if (c == '%' && *p == '{')
4992 /* We have a switch spec. */
4993 validate_switches (p + 1);
4997 if (c == '%' && *p == '{')
4998 /* We have a switch spec. */
4999 validate_switches (p + 1);
5003 if (c == '%' && *p == '{')
5004 /* We have a switch spec. */
5005 validate_switches (p + 1);
5009 if (c == '%' && *p == '{')
5010 /* We have a switch spec. */
5011 validate_switches (p + 1);
5014 /* Look at the switch-name that comes after START
5015 and mark as valid all supplied switches that match it. */
5018 validate_switches (start)
5021 register char *p = start;
5036 while (*p != ':' && *p != '}') p++;
5040 else if (p[-1] == '*')
5042 /* Mark all matching switches as valid. */
5044 for (i = 0; i < n_switches; i++)
5045 if (!strncmp (switches[i].part1, filter, p - filter))
5046 switches[i].valid = 1;
5050 /* Mark an exact matching switch as valid. */
5051 for (i = 0; i < n_switches; i++)
5053 if (!strncmp (switches[i].part1, filter, p - filter)
5054 && switches[i].part1[p - filter] == 0)
5055 switches[i].valid = 1;
5060 /* Check whether a particular argument was used. */
5069 for (i = 0; i < n_switches; i++)
5070 if (! strncmp (switches[i].part1, p, len)
5071 && strlen (switches[i].part1) == len)
5076 /* Work out the subdirectory to use based on the
5077 options. The format of multilib_select is a list of elements.
5078 Each element is a subdirectory name followed by a list of options
5079 followed by a semicolon. gcc will consider each line in turn. If
5080 none of the options beginning with an exclamation point are
5081 present, and all of the other options are present, that
5082 subdirectory will be used. */
5087 char *p = multilib_select;
5089 char *this_path, *this_arg;
5094 /* Ignore newlines. */
5101 /* Get the initial path. */
5109 this_path_len = p - this_path;
5111 /* Check the arguments. */
5126 while (*p != ' ' && *p != ';')
5133 if (*this_arg == '!')
5134 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5136 failed = ! used_arg (this_arg, p - this_arg);
5144 if (this_path_len != 1
5145 || this_path[0] != '.')
5147 multilib_dir = xmalloc (this_path_len + 1);
5148 strncpy (multilib_dir, this_path, this_path_len);
5149 multilib_dir[this_path_len] = '\0';
5158 /* Print out the multiple library subdirectory selection
5159 information. This prints out a series of lines. Each line looks
5160 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5161 required. Only the desired options are printed out, the negative
5162 matches. The options are print without a leading dash. There are
5163 no spaces to make it easy to use the information in the shell.
5164 Each subdirectory is printed only once. This assumes the ordering
5165 generated by the genmultilib script. */
5168 print_multilib_info ()
5170 char *p = multilib_select;
5171 char *last_path, *this_path;
5173 int last_path_len = 0;
5177 /* Ignore newlines. */
5184 /* Get the initial path. */
5193 /* If this is a duplicate, skip it. */
5194 skip = (p - this_path == last_path_len
5195 && ! strncmp (last_path, this_path, last_path_len));
5197 last_path = this_path;
5198 last_path_len = p - this_path;
5204 for (p1 = last_path; p1 < p; p1++)
5223 use_arg = *p != '!';
5228 while (*p != ' ' && *p != ';')