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 ".o". */
149 #define HAVE_OBJECT_SUFFIX
151 #define OBJECT_SUFFIX ".o"
154 /* By default, colon separates directories in a path. */
155 #ifndef PATH_SEPARATOR
156 #define PATH_SEPARATOR ':'
159 #ifndef DIR_SEPARATOR
160 #define DIR_SEPARATOR '/'
163 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
165 #define obstack_chunk_alloc xmalloc
166 #define obstack_chunk_free free
169 extern char *getenv ();
176 #ifndef HAVE_STRERROR
178 extern const char *const sys_errlist[];
180 extern char *sys_errlist[];
183 extern char *strerror();
186 extern int execv (), execvp ();
188 /* If a stage of compilation returns an exit status >= 1,
189 compilation of that file ceases. */
191 #define MIN_FATAL_STATUS 1
193 /* Flag saying to print the directories gcc will search through looking for
194 programs, libraries, etc. */
196 static int print_search_dirs;
198 /* Flag saying to print the full filename of this file
199 as found through our usual search mechanism. */
201 static char *print_file_name = NULL;
203 /* As print_file_name, but search for executable file. */
205 static char *print_prog_name = NULL;
207 /* Flag saying to print the relative path we'd use to
208 find libgcc.a given the current compiler flags. */
210 static int print_multi_directory;
212 /* Flag saying to print the list of subdirectories and
213 compiler flags used to select them in a standard form. */
215 static int print_multi_lib;
217 /* Flag indicating whether we should print the command and arguments */
219 static int verbose_flag;
221 /* Nonzero means write "temp" files in source directory
222 and use the source file's name in them, and don't delete them. */
224 static int save_temps_flag;
226 /* The compiler version. */
228 static char *compiler_version;
230 /* The target version specified with -V */
232 static char *spec_version = DEFAULT_TARGET_VERSION;
234 /* The target machine specified with -b. */
236 static char *spec_machine = DEFAULT_TARGET_MACHINE;
238 /* Nonzero if cross-compiling.
239 When -b is used, the value comes from the `specs' file. */
242 static int cross_compile = 1;
244 static int cross_compile = 0;
247 /* The number of errors that have occurred; the link phase will not be
248 run if this is non-zero. */
249 static int error_count = 0;
251 /* This is the obstack which we use to allocate many strings. */
253 static struct obstack obstack;
255 /* This is the obstack to build an environment variable to pass to
256 collect2 that describes all of the relevant switches of what to
257 pass the compiler in building the list of pointers to constructors
260 static struct obstack collect_obstack;
262 extern char *version_string;
264 /* Forward declaration for prototypes. */
267 static void set_spec PROTO((char *, char *));
268 static struct compiler *lookup_compiler PROTO((char *, int, char *));
269 static char *build_search_list PROTO((struct path_prefix *, char *, int));
270 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
271 static char *find_a_file PROTO((struct path_prefix *, char *, int));
272 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
273 static char *skip_whitespace PROTO((char *));
274 static void record_temp_file PROTO((char *, int, int));
275 static void delete_if_ordinary PROTO((char *));
276 static void delete_temp_files PROTO((void));
277 static void delete_failure_queue PROTO((void));
278 static void clear_failure_queue PROTO((void));
279 static char *choose_temp_base_try PROTO((char *, char *));
280 static void choose_temp_base PROTO((void));
281 static int check_live_switch PROTO((int, int));
282 static char *handle_braces PROTO((char *));
283 static char *save_string PROTO((char *, int));
284 static char *concat PROTO((char *, char *));
285 static char *concat3 PROTO((char *, char *, char *));
286 static char *concat4 PROTO((char *, char *, char *, char *));
287 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
289 static int do_spec PROTO((char *));
290 static int do_spec_1 PROTO((char *, int, char *));
291 static char *find_file PROTO((char *));
292 static int is_directory PROTO((char *, char *, int));
293 static void validate_switches PROTO((char *));
294 static void validate_all_switches PROTO((void));
295 static void give_switch PROTO((int, int));
296 static int used_arg PROTO((char *, int));
297 static void set_multilib_dir PROTO((void));
298 static void print_multilib_info PROTO((void));
299 static void pfatal_with_name PROTO((char *));
300 static void perror_with_name PROTO((char *));
301 static void perror_exec PROTO((char *));
303 static void fatal PVPROTO((char *, ...));
304 static void error PVPROTO((char *, ...));
306 /* We must not provide any prototype here, even if ANSI C. */
307 static void fatal PROTO(());
308 static void error PROTO(());
315 /* Specs are strings containing lines, each of which (if not blank)
316 is made up of a program name, and arguments separated by spaces.
317 The program name must be exact and start from root, since no path
318 is searched and it is unreliable to depend on the current working directory.
319 Redirection of input or output is not supported; the subprograms must
320 accept filenames saying what files to read and write.
322 In addition, the specs can contain %-sequences to substitute variable text
323 or for conditional text. Here is a table of all defined %-sequences.
324 Note that spaces are not generated automatically around the results of
325 expanding these sequences; therefore, you can concatenate them together
326 or with constant text in a single argument.
328 %% substitute one % into the program name or argument.
329 %i substitute the name of the input file being processed.
330 %b substitute the basename of the input file being processed.
331 This is the substring up to (and not including) the last period
332 and not including the directory.
333 %g substitute the temporary-file-name-base. This is a string chosen
334 once per compilation. Different temporary file names are made by
335 concatenation of constant strings on the end, as in `%g.s'.
336 %g also has the same effect of %d.
337 %u like %g, but make the temporary file name unique.
338 %U returns the last file name generated with %u.
339 %d marks the argument containing or following the %d as a
340 temporary file name, so that that file will be deleted if CC exits
341 successfully. Unlike %g, this contributes no text to the argument.
342 %w marks the argument containing or following the %w as the
343 "output file" of this compilation. This puts the argument
344 into the sequence of arguments that %o will substitute later.
346 like %{...} but mark last argument supplied within
347 as a file to be deleted on failure.
348 %o substitutes the names of all the output files, with spaces
349 automatically placed around them. You should write spaces
350 around the %o as well or the results are undefined.
351 %o is for use in the specs for running the linker.
352 Input files whose names have no recognized suffix are not compiled
353 at all, but they are included among the output files, so they will
355 %O substitutes the suffix for object files.
356 %p substitutes the standard macro predefinitions for the
357 current target machine. Use this when running cpp.
358 %P like %p, but puts `__' before and after the name of each macro.
359 (Except macros that already have __.)
361 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
362 %s current argument is the name of a library or startup file of some sort.
363 Search for that file in a standard list of directories
364 and substitute the full name found.
365 %eSTR Print STR as an error message. STR is terminated by a newline.
366 Use this when inconsistent options are detected.
367 %x{OPTION} Accumulate an option for %X.
368 %X Output the accumulated linker options specified by compilations.
369 %Y Output the accumulated assembler options specified by compilations.
370 %Z Output the accumulated preprocessor options specified by compilations.
371 %v1 Substitute the major version number of GCC.
372 (For version 2.5.n, this is 2.)
373 %v2 Substitute the minor version number of GCC.
374 (For version 2.5.n, this is 5.)
375 %a process ASM_SPEC as a spec.
376 This allows config.h to specify part of the spec for running as.
377 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
378 used here. This can be used to run a post-processor after the
379 assembler has done it's job.
380 %D Dump out a -L option for each directory in startfile_prefixes.
381 If multilib_dir is set, extra entries are generated with it affixed.
382 %l process LINK_SPEC as a spec.
383 %L process LIB_SPEC as a spec.
384 %G process LIBGCC_SPEC as a spec.
385 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
386 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
387 %c process SIGNED_CHAR_SPEC as a spec.
388 %C process CPP_SPEC as a spec. A capital C is actually used here.
389 %1 process CC1_SPEC as a spec.
390 %2 process CC1PLUS_SPEC as a spec.
391 %| output "-" if the input for the current command is coming from a pipe.
392 %* substitute the variable part of a matched option. (See below.)
393 Note that each comma in the substituted string is replaced by
395 %{S} substitutes the -S switch, if that switch was given to CC.
396 If that switch was not specified, this substitutes nothing.
397 Here S is a metasyntactic variable.
398 %{S*} substitutes all the switches specified to CC whose names start
399 with -S. This is used for -o, -D, -I, etc; switches that take
400 arguments. CC considers `-o foo' as being one switch whose
401 name starts with `o'. %{o*} would substitute this text,
402 including the space; thus, two arguments would be generated.
403 %{S*:X} substitutes X if one or more switches whose names start with -S are
404 specified to CC. Note that the tail part of the -S option
405 (i.e. the part matched by the `*') will be substituted for each
406 occurrence of %* within X.
407 %{S:X} substitutes X, but only if the -S switch was given to CC.
408 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
409 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
410 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
411 %{.S:X} substitutes X, but only if processing a file with suffix S.
412 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
413 %(Spec) processes a specification defined in a specs file as *Spec:
414 %[Spec] as above, but put __ around -D arguments
416 The conditional text X in a %{S:X} or %{!S:X} construct may contain
417 other nested % constructs or spaces, or even newlines. They are
418 processed as usual, as described above.
420 The -O, -f, -m, and -W switches are handled specifically in these
421 constructs. If another value of -O or the negated form of a -f, -m, or
422 -W switch is found later in the command line, the earlier switch
423 value is ignored, except with {S*} where S is just one letter; this
424 passes all matching options.
426 The character | is used to indicate that a command should be piped to
427 the following command, but only if -pipe is specified.
429 Note that it is built into CC which switches take arguments and which
430 do not. You might think it would be useful to generalize this to
431 allow each compiler's spec to say which switches take arguments. But
432 this cannot be done in a consistent fashion. CC cannot even decide
433 which input files have been specified without knowing which switches
434 take arguments, and it must know which input files to compile in order
435 to tell which compilers to run.
437 CC also knows implicitly that arguments starting in `-l' are to be
438 treated as compiler output files, and passed to the linker in their
439 proper position among the other output files. */
441 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
443 /* config.h can define ASM_SPEC to provide extra args to the assembler
444 or extra switch-translations. */
449 /* config.h can define ASM_FINAL_SPEC to run a post processor after
450 the assembler has run. */
451 #ifndef ASM_FINAL_SPEC
452 #define ASM_FINAL_SPEC ""
455 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
456 or extra switch-translations. */
461 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
462 or extra switch-translations. */
467 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
468 or extra switch-translations. */
470 #define CC1PLUS_SPEC ""
473 /* config.h can define LINK_SPEC to provide extra args to the linker
474 or extra switch-translations. */
479 /* config.h can define LIB_SPEC to override the default libraries. */
481 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
484 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
487 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
488 /* Have gcc do the search for libgcc.a. */
489 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
491 #define LIBGCC_SPEC "%{!shared:-lgcc}"
495 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
496 #ifndef STARTFILE_SPEC
497 #define STARTFILE_SPEC \
498 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
501 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
502 Make the string nonempty to require spaces there. */
503 #ifndef SWITCHES_NEED_SPACES
504 #define SWITCHES_NEED_SPACES ""
507 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
509 #define ENDFILE_SPEC ""
512 /* This spec is used for telling cpp whether char is signed or not. */
513 #ifndef SIGNED_CHAR_SPEC
514 /* Use #if rather than ?:
515 because MIPS C compiler rejects like ?: in initializers. */
516 #if DEFAULT_SIGNED_CHAR
517 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
519 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
523 /* MULTILIB_SELECT comes from multilib.h. It gives a
524 string interpreted by set_multilib_dir to select a library
525 subdirectory based on the compiler options. */
526 #ifndef MULTILIB_SELECT
527 #define MULTILIB_SELECT ". ;"
530 static char *cpp_spec = CPP_SPEC;
531 static char *cpp_predefines = CPP_PREDEFINES;
532 static char *cc1_spec = CC1_SPEC;
533 static char *cc1plus_spec = CC1PLUS_SPEC;
534 static char *signed_char_spec = SIGNED_CHAR_SPEC;
535 static char *asm_spec = ASM_SPEC;
536 static char *asm_final_spec = ASM_FINAL_SPEC;
537 static char *link_spec = LINK_SPEC;
538 static char *lib_spec = LIB_SPEC;
539 static char *libgcc_spec = LIBGCC_SPEC;
540 static char *endfile_spec = ENDFILE_SPEC;
541 static char *startfile_spec = STARTFILE_SPEC;
542 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
543 static char *multilib_select = MULTILIB_SELECT;
545 /* This defines which switch letters take arguments. */
547 #ifndef SWITCH_TAKES_ARG
548 #define SWITCH_TAKES_ARG(CHAR) \
549 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
550 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
551 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
552 || (CHAR) == 'L' || (CHAR) == 'A')
555 /* This defines which multi-letter switches take arguments. */
557 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
558 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
559 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
560 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
561 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
562 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
563 || !strcmp (STR, "isystem"))
565 #ifndef WORD_SWITCH_TAKES_ARG
566 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
569 /* Record the mapping from file suffixes for compilation specs. */
573 char *suffix; /* Use this compiler for input files
574 whose names end in this suffix. */
576 char *spec[4]; /* To use this compiler, concatenate these
577 specs and pass to do_spec. */
580 /* Pointer to a vector of `struct compiler' that gives the spec for
581 compiling a file, based on its suffix.
582 A file that does not end in any of these suffixes will be passed
583 unchanged to the loader and nothing else will be done to it.
585 An entry containing two 0s is used to terminate the vector.
587 If multiple entries match a file, the last matching one is used. */
589 static struct compiler *compilers;
591 /* Number of entries in `compilers', not counting the null terminator. */
593 static int n_compilers;
595 /* The default list of file name suffixes and their compilation specs. */
597 static struct compiler default_compilers[] =
601 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
602 %{C:%{!E:%eGNU C does not support -C without using -E}}\
603 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
604 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
605 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
606 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
607 %c %{O*:%{!O0:-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 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
612 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
613 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
614 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
616 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
617 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
619 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
620 %{!pipe:%g.s} %A\n }}}}"},
622 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
628 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
629 %{traditional-cpp:-traditional}\
630 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
632 %{!E:%e-E required when input is from standard input}"},
633 {".m", "@objective-c"},
635 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
636 %{C:%{!E:%eGNU C does not support -C without using -E}}\
637 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
638 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
639 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
640 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
641 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
642 %{traditional-cpp:-traditional}\
643 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
644 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
645 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
646 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
647 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
648 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
649 -lang-objc %{gen-decls} \
651 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
652 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
654 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
655 %{!pipe:%g.s} %A\n }}}}"},
658 "%{!E:%eCompilation of header file requested} \
659 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
660 %{C:%{!E:%eGNU C does not support -C without using -E}}\
661 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
662 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
663 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
664 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
665 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
666 %{traditional-cpp:-traditional}\
667 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
669 {".i", "@cpp-output"},
671 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
672 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
673 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
675 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
676 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
678 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 %{!pipe:%g.s} %A\n }}}}"},
680 {".s", "@assembler"},
682 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
683 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
685 {".S", "@assembler-with-cpp"},
686 {"@assembler-with-cpp",
687 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
688 %{C:%{!E:%eGNU C does not support -C without using -E}}\
689 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
690 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
691 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
692 %{traditional-cpp:-traditional}\
693 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
694 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
695 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
696 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
697 %{!pipe:%g.s} %A\n }}}}"},
699 /* Mark end of table */
703 /* Number of elements in default_compilers, not counting the terminator. */
705 static int n_default_compilers
706 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
708 /* Here is the spec for running the linker, after compiling all files. */
710 /* -u* was put back because both BSD and SysV seem to support it. */
711 /* %{static:} simply prevents an error message if the target machine
712 doesn't handle -static. */
713 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
714 scripts which exist in user specified directories, or in standard
716 #ifdef LINK_LIBGCC_SPECIAL
717 /* Don't generate -L options. */
718 static char *link_command_spec = "\
720 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
721 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
722 %{!A:%{!nostartfiles:%S}} %{static:}\
723 %{L*} %{T*} %o %{!nostdlib:%G %L %G}\
724 %{!A:%{!nostartfiles:%E}}\n }}}}}}";
727 static char *link_command_spec = "\
729 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
730 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
731 %{!A:%{!nostartfiles:%S}} %{static:}\
732 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G}\
733 %{!A:%{!nostartfiles:%E}}\n }}}}}}";
736 /* A vector of options to give to the linker.
737 These options are accumulated by %x,
738 and substituted into the linker command with %X. */
739 static int n_linker_options;
740 static char **linker_options;
742 /* A vector of options to give to the assembler.
743 These options are accumulated by -Wa,
744 and substituted into the assembler command with %Y. */
745 static int n_assembler_options;
746 static char **assembler_options;
748 /* A vector of options to give to the preprocessor.
749 These options are accumulated by -Wp,
750 and substituted into the preprocessor command with %Z. */
751 static int n_preprocessor_options;
752 static char **preprocessor_options;
754 /* Define how to map long options into short ones. */
756 /* This structure describes one mapping. */
759 /* The long option's name. */
761 /* The equivalent short option. */
763 /* Argument info. A string of flag chars; NULL equals no options.
764 a => argument required.
765 o => argument optional.
766 j => join argument to equivalent, making one word.
767 * => require other text after NAME as an argument. */
771 /* This is the table of mappings. Mappings are tried sequentially
772 for each option encountered; the first one that matches, wins. */
774 struct option_map option_map[] =
776 {"--all-warnings", "-Wall", 0},
777 {"--ansi", "-ansi", 0},
778 {"--assemble", "-S", 0},
779 {"--assert", "-A", "a"},
780 {"--comments", "-C", 0},
781 {"--compile", "-c", 0},
782 {"--debug", "-g", "oj"},
783 {"--define-macro", "-D", "a"},
784 {"--dependencies", "-M", 0},
785 {"--dump", "-d", "a"},
786 {"--dumpbase", "-dumpbase", "a"},
787 {"--entry", "-e", 0},
788 {"--extra-warnings", "-W", 0},
789 {"--for-assembler", "-Wa", "a"},
790 {"--for-linker", "-Xlinker", "a"},
791 {"--force-link", "-u", "a"},
792 {"--imacros", "-imacros", "a"},
793 {"--include", "-include", "a"},
794 {"--include-barrier", "-I-", 0},
795 {"--include-directory", "-I", "a"},
796 {"--include-directory-after", "-idirafter", "a"},
797 {"--include-prefix", "-iprefix", "a"},
798 {"--include-with-prefix", "-iwithprefix", "a"},
799 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
800 {"--include-with-prefix-after", "-iwithprefix", "a"},
801 {"--language", "-x", "a"},
802 {"--library-directory", "-L", "a"},
803 {"--machine", "-m", "aj"},
804 {"--machine-", "-m", "*j"},
805 {"--no-line-commands", "-P", 0},
806 {"--no-precompiled-includes", "-noprecomp", 0},
807 {"--no-standard-includes", "-nostdinc", 0},
808 {"--no-standard-libraries", "-nostdlib", 0},
809 {"--no-warnings", "-w", 0},
810 {"--optimize", "-O", "oj"},
811 {"--output", "-o", "a"},
812 {"--pedantic", "-pedantic", 0},
813 {"--pedantic-errors", "-pedantic-errors", 0},
814 {"--pipe", "-pipe", 0},
815 {"--prefix", "-B", "a"},
816 {"--preprocess", "-E", 0},
817 {"--print-search-dirs", "-print-search-dirs", 0},
818 {"--print-file-name", "-print-file-name=", "aj"},
819 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
820 {"--print-missing-file-dependencies", "-MG", 0},
821 {"--print-multi-lib", "-print-multi-lib", 0},
822 {"--print-multi-directory", "-print-multi-directory", 0},
823 {"--print-prog-name", "-print-prog-name=", "aj"},
824 {"--profile", "-p", 0},
825 {"--profile-blocks", "-a", 0},
826 {"--quiet", "-q", 0},
827 {"--save-temps", "-save-temps", 0},
828 {"--shared", "-shared", 0},
829 {"--silent", "-q", 0},
830 {"--static", "-static", 0},
831 {"--symbolic", "-symbolic", 0},
832 {"--target", "-b", "a"},
833 {"--trace-includes", "-H", 0},
834 {"--traditional", "-traditional", 0},
835 {"--traditional-cpp", "-traditional-cpp", 0},
836 {"--trigraphs", "-trigraphs", 0},
837 {"--undefine-macro", "-U", "a"},
838 {"--use-version", "-V", "a"},
839 {"--user-dependencies", "-MM", 0},
840 {"--verbose", "-v", 0},
841 {"--version", "-dumpversion", 0},
842 {"--warn-", "-W", "*j"},
843 {"--write-dependencies", "-MD", 0},
844 {"--write-user-dependencies", "-MMD", 0},
848 /* Translate the options described by *ARGCP and *ARGVP.
849 Make a new vector and store it back in *ARGVP,
850 and store its length in *ARGVC. */
853 translate_options (argcp, argvp)
859 char **argv = *argvp;
860 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
864 newv[newindex++] = argv[i++];
868 /* Translate -- options. */
869 if (argv[i][0] == '-' && argv[i][1] == '-')
871 /* Find a mapping that applies to this option. */
872 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
874 int optlen = strlen (option_map[j].name);
875 int arglen = strlen (argv[i]);
876 int complen = arglen > optlen ? optlen : arglen;
877 char *arginfo = option_map[j].arg_info;
882 if (!strncmp (argv[i], option_map[j].name, complen))
889 k < sizeof (option_map) / sizeof (option_map[0]);
891 if (strlen (option_map[k].name) >= arglen
892 && !strncmp (argv[i], option_map[k].name, arglen))
894 error ("Ambiguous abbreviation %s", argv[i]);
898 if (k != sizeof (option_map) / sizeof (option_map[0]))
904 /* If the option has an argument, accept that. */
905 if (argv[i][optlen] == '=')
906 arg = argv[i] + optlen + 1;
908 /* If this mapping requires extra text at end of name,
909 accept that as "argument". */
910 else if (index (arginfo, '*') != 0)
911 arg = argv[i] + optlen;
913 /* Otherwise, extra text at end means mismatch.
914 Try other mappings. */
919 else if (index (arginfo, '*') != 0)
921 error ("Incomplete `%s' option", option_map[j].name);
925 /* Handle arguments. */
926 if (index (arginfo, 'a') != 0)
932 error ("Missing argument to `%s' option",
940 else if (index (arginfo, '*') != 0)
942 else if (index (arginfo, 'o') == 0)
945 error ("Extraneous argument to `%s' option",
950 /* Store the translation as one argv elt or as two. */
951 if (arg != 0 && index (arginfo, 'j') != 0)
952 newv[newindex++] = concat (option_map[j].equivalent, arg);
955 newv[newindex++] = option_map[j].equivalent;
956 newv[newindex++] = arg;
959 newv[newindex++] = option_map[j].equivalent;
967 /* Handle old-fashioned options--just copy them through,
968 with their arguments. */
969 else if (argv[i][0] == '-')
971 char *p = argv[i] + 1;
975 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
976 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
977 else if (WORD_SWITCH_TAKES_ARG (p))
978 nskip += WORD_SWITCH_TAKES_ARG (p);
979 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
982 else if (! strcmp (p, "Xlinker"))
985 /* Watch out for an option at the end of the command line that
986 is missing arguments, and avoid skipping past the end of the
988 if (nskip + i > argc)
993 newv[newindex++] = argv[i++];
998 /* Ordinary operands, or +e options. */
999 newv[newindex++] = argv[i++];
1013 #ifdef HAVE_STRERROR
1018 static char buffer[30];
1022 if (e > 0 && e < sys_nerr)
1023 return sys_errlist[e];
1025 sprintf (buffer, "Unknown error %d", e);
1030 /* Read compilation specs from a file named FILENAME,
1031 replacing the default ones.
1033 A suffix which starts with `*' is a definition for
1034 one of the machine-specific sub-specs. The "suffix" should be
1035 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1036 The corresponding spec is stored in asm_spec, etc.,
1037 rather than in the `compilers' vector.
1039 Anything invalid in the file is a fatal error. */
1042 read_specs (filename)
1047 struct stat statbuf;
1052 fprintf (stderr, "Reading specs from %s\n", filename);
1054 /* Open and stat the file. */
1055 desc = open (filename, O_RDONLY, 0);
1057 pfatal_with_name (filename);
1058 if (stat (filename, &statbuf) < 0)
1059 pfatal_with_name (filename);
1061 /* Read contents of file into BUFFER. */
1062 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1063 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1065 pfatal_with_name (filename);
1066 buffer[readlen] = 0;
1069 /* Scan BUFFER for specs, putting them in the vector. */
1075 char *in, *out, *p1, *p2;
1077 /* Advance P in BUFFER to the next nonblank nocomment line. */
1078 p = skip_whitespace (p);
1082 /* Find the colon that should end the suffix. */
1084 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1085 /* The colon shouldn't be missing. */
1087 fatal ("specs file malformed after %d characters", p1 - buffer);
1088 /* Skip back over trailing whitespace. */
1090 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1091 /* Copy the suffix to a string. */
1092 suffix = save_string (p, p2 - p);
1093 /* Find the next line. */
1094 p = skip_whitespace (p1 + 1);
1096 fatal ("specs file malformed after %d characters", p - buffer);
1098 /* Find next blank line. */
1099 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1100 /* Specs end at the blank line and do not include the newline. */
1101 spec = save_string (p, p1 - p);
1104 /* Delete backslash-newline sequences from the spec. */
1109 if (in[0] == '\\' && in[1] == '\n')
1111 else if (in[0] == '#')
1113 while (*in && *in != '\n') in++;
1120 if (suffix[0] == '*')
1122 if (! strcmp (suffix, "*link_command"))
1123 link_command_spec = spec;
1125 set_spec (suffix + 1, spec);
1129 /* Add this pair to the vector. */
1131 = ((struct compiler *)
1132 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1133 compilers[n_compilers].suffix = suffix;
1134 bzero ((char *) compilers[n_compilers].spec,
1135 sizeof compilers[n_compilers].spec);
1136 compilers[n_compilers].spec[0] = spec;
1138 bzero ((char *) &compilers[n_compilers],
1139 sizeof compilers[n_compilers]);
1143 link_command_spec = spec;
1146 if (link_command_spec == 0)
1147 fatal ("spec file has no spec for linking");
1156 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1157 be considered whitespace. */
1158 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1160 else if (*p == '\n' || *p == ' ' || *p == '\t')
1164 while (*p != '\n') p++;
1174 /* Structure to keep track of the specs that have been defined so far. These
1175 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1179 char *name; /* Name of the spec. */
1180 char *spec; /* The spec itself. */
1181 struct spec_list *next; /* Next spec in linked list. */
1184 /* List of specs that have been defined so far. */
1186 static struct spec_list *specs = (struct spec_list *) 0;
1188 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1189 removed; If the spec starts with a + then SPEC is added to the end of the
1193 set_spec (name, spec)
1197 struct spec_list *sl;
1200 /* See if the spec already exists */
1201 for (sl = specs; sl; sl = sl->next)
1202 if (strcmp (sl->name, name) == 0)
1207 /* Not found - make it */
1208 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1209 sl->name = save_string (name, strlen (name));
1210 sl->spec = save_string ("", 0);
1215 old_spec = sl->spec;
1216 if (name && spec[0] == '+' && isspace (spec[1]))
1217 sl->spec = concat (old_spec, spec + 1);
1219 sl->spec = save_string (spec, strlen (spec));
1221 if (! strcmp (name, "asm"))
1222 asm_spec = sl->spec;
1223 else if (! strcmp (name, "asm_final"))
1224 asm_final_spec = sl->spec;
1225 else if (! strcmp (name, "cc1"))
1226 cc1_spec = sl->spec;
1227 else if (! strcmp (name, "cc1plus"))
1228 cc1plus_spec = sl->spec;
1229 else if (! strcmp (name, "cpp"))
1230 cpp_spec = sl->spec;
1231 else if (! strcmp (name, "endfile"))
1232 endfile_spec = sl->spec;
1233 else if (! strcmp (name, "lib"))
1234 lib_spec = sl->spec;
1235 else if (! strcmp (name, "libgcc"))
1236 libgcc_spec = sl->spec;
1237 else if (! strcmp (name, "link"))
1238 link_spec = sl->spec;
1239 else if (! strcmp (name, "predefines"))
1240 cpp_predefines = sl->spec;
1241 else if (! strcmp (name, "signed_char"))
1242 signed_char_spec = sl->spec;
1243 else if (! strcmp (name, "startfile"))
1244 startfile_spec = sl->spec;
1245 else if (! strcmp (name, "switches_need_spaces"))
1246 switches_need_spaces = sl->spec;
1247 else if (! strcmp (name, "cross_compile"))
1248 cross_compile = atoi (sl->spec);
1249 else if (! strcmp (name, "multilib"))
1250 multilib_select = sl->spec;
1251 /* Free the old spec */
1256 /* Accumulate a command (program name and args), and run it. */
1258 /* Vector of pointers to arguments in the current line of specifications. */
1260 static char **argbuf;
1262 /* Number of elements allocated in argbuf. */
1264 static int argbuf_length;
1266 /* Number of elements in argbuf currently in use (containing args). */
1268 static int argbuf_index;
1270 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1271 temp file. Used only if MKTEMP_EACH_FILE. */
1273 static struct temp_name {
1274 char *suffix; /* suffix associated with the code. */
1275 int length; /* strlen (suffix). */
1276 int unique; /* Indicates whether %g or %u/%U was used. */
1277 char *filename; /* associated filename. */
1278 int filename_length; /* strlen (filename). */
1279 struct temp_name *next;
1282 /* Number of commands executed so far. */
1284 static int execution_count;
1286 /* Number of commands that exited with a signal. */
1288 static int signal_count;
1290 /* Name with which this program was invoked. */
1292 static char *programname;
1294 /* Structures to keep track of prefixes to try when looking for files. */
1298 char *prefix; /* String to prepend to the path. */
1299 struct prefix_list *next; /* Next in linked list. */
1300 int require_machine_suffix; /* Don't use without machine_suffix. */
1301 /* 2 means try both machine_suffix and just_machine_suffix. */
1302 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1307 struct prefix_list *plist; /* List of prefixes to try */
1308 int max_len; /* Max length of a prefix in PLIST */
1309 char *name; /* Name of this list (used in config stuff) */
1312 /* List of prefixes to try when looking for executables. */
1314 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1316 /* List of prefixes to try when looking for startup (crt0) files. */
1318 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1320 /* List of prefixes to try when looking for include files. */
1322 static struct path_prefix include_prefixes = { 0, 0, "include" };
1324 /* Suffix to attach to directories searched for commands.
1325 This looks like `MACHINE/VERSION/'. */
1327 static char *machine_suffix = 0;
1329 /* Suffix to attach to directories searched for commands.
1330 This is just `MACHINE/'. */
1332 static char *just_machine_suffix = 0;
1334 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1336 static char *gcc_exec_prefix;
1338 /* Default prefixes to attach to command names. */
1340 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1341 #undef MD_EXEC_PREFIX
1342 #undef MD_STARTFILE_PREFIX
1343 #undef MD_STARTFILE_PREFIX_1
1346 #ifndef STANDARD_EXEC_PREFIX
1347 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1348 #endif /* !defined STANDARD_EXEC_PREFIX */
1350 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1351 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1352 #ifdef MD_EXEC_PREFIX
1353 static char *md_exec_prefix = MD_EXEC_PREFIX;
1356 #ifndef STANDARD_STARTFILE_PREFIX
1357 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1358 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1360 #ifdef MD_STARTFILE_PREFIX
1361 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1363 #ifdef MD_STARTFILE_PREFIX_1
1364 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1366 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1367 static char *standard_startfile_prefix_1 = "/lib/";
1368 static char *standard_startfile_prefix_2 = "/usr/lib/";
1370 #ifndef TOOLDIR_BASE_PREFIX
1371 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1373 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1374 static char *tooldir_prefix;
1376 /* Subdirectory to use for locating libraries. Set by
1377 set_multilib_dir based on the compilation options. */
1379 static char *multilib_dir;
1381 /* Clear out the vector of arguments (after a command is executed). */
1389 /* Add one argument to the vector at the end.
1390 This is done when a space is seen or at the end of the line.
1391 If DELETE_ALWAYS is nonzero, the arg is a filename
1392 and the file should be deleted eventually.
1393 If DELETE_FAILURE is nonzero, the arg is a filename
1394 and the file should be deleted if this compilation fails. */
1397 store_arg (arg, delete_always, delete_failure)
1399 int delete_always, delete_failure;
1401 if (argbuf_index + 1 == argbuf_length)
1403 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1406 argbuf[argbuf_index++] = arg;
1407 argbuf[argbuf_index] = 0;
1409 if (delete_always || delete_failure)
1410 record_temp_file (arg, delete_always, delete_failure);
1413 /* Record the names of temporary files we tell compilers to write,
1414 and delete them at the end of the run. */
1416 /* This is the common prefix we use to make temp file names.
1417 It is chosen once for each run of this program.
1418 It is substituted into a spec by %g.
1419 Thus, all temp file names contain this prefix.
1420 In practice, all temp file names start with this prefix.
1422 This prefix comes from the envvar TMPDIR if it is defined;
1423 otherwise, from the P_tmpdir macro if that is defined;
1424 otherwise, in /usr/tmp or /tmp. */
1426 static char *temp_filename;
1428 /* Length of the prefix. */
1430 static int temp_filename_length;
1432 /* Define the list of temporary files to delete. */
1437 struct temp_file *next;
1440 /* Queue of files to delete on success or failure of compilation. */
1441 static struct temp_file *always_delete_queue;
1442 /* Queue of files to delete on failure of compilation. */
1443 static struct temp_file *failure_delete_queue;
1445 /* Record FILENAME as a file to be deleted automatically.
1446 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1447 otherwise delete it in any case.
1448 FAIL_DELETE nonzero means delete it if a compilation step fails;
1449 otherwise delete it in any case. */
1452 record_temp_file (filename, always_delete, fail_delete)
1457 register char *name;
1458 name = xmalloc (strlen (filename) + 1);
1459 strcpy (name, filename);
1463 register struct temp_file *temp;
1464 for (temp = always_delete_queue; temp; temp = temp->next)
1465 if (! strcmp (name, temp->name))
1467 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1468 temp->next = always_delete_queue;
1470 always_delete_queue = temp;
1476 register struct temp_file *temp;
1477 for (temp = failure_delete_queue; temp; temp = temp->next)
1478 if (! strcmp (name, temp->name))
1480 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1481 temp->next = failure_delete_queue;
1483 failure_delete_queue = temp;
1488 /* Delete all the temporary files whose names we previously recorded. */
1491 delete_if_ordinary (name)
1498 printf ("Delete %s? (y or n) ", name);
1502 while ((c = getchar ()) != '\n' && c != EOF) ;
1503 if (i == 'y' || i == 'Y')
1505 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1506 if (unlink (name) < 0)
1508 perror_with_name (name);
1512 delete_temp_files ()
1514 register struct temp_file *temp;
1516 for (temp = always_delete_queue; temp; temp = temp->next)
1517 delete_if_ordinary (temp->name);
1518 always_delete_queue = 0;
1521 /* Delete all the files to be deleted on error. */
1524 delete_failure_queue ()
1526 register struct temp_file *temp;
1528 for (temp = failure_delete_queue; temp; temp = temp->next)
1529 delete_if_ordinary (temp->name);
1533 clear_failure_queue ()
1535 failure_delete_queue = 0;
1538 /* Compute a string to use as the base of all temporary file names.
1539 It is substituted for %g. */
1542 choose_temp_base_try (try, base)
1549 else if (try == (char *)0)
1551 else if (access (try, R_OK | W_OK) != 0)
1564 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1565 base = choose_temp_base_try (getenv ("TMP"), base);
1566 base = choose_temp_base_try (getenv ("TEMP"), base);
1569 base = choose_temp_base_try (P_tmpdir, base);
1572 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1573 dir_separator_str, "tmp"),
1575 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1577 /* If all else fails, use the current directory! */
1578 if (base == (char *)0) base = concat(".", dir_separator_str);
1580 len = strlen (base);
1581 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1583 strcpy (temp_filename, base);
1584 if (len > 0 && temp_filename[len-1] != '/'
1585 && temp_filename[len-1] != DIR_SEPARATOR)
1586 temp_filename[len++] = DIR_SEPARATOR;
1587 strcpy (temp_filename + len, "ccXXXXXX");
1589 mktemp (temp_filename);
1590 temp_filename_length = strlen (temp_filename);
1591 if (temp_filename_length == 0)
1596 /* Routine to add variables to the environment. We do this to pass
1597 the pathname of the gcc driver, and the directories search to the
1598 collect2 program, which is being run as ld. This way, we can be
1599 sure of executing the right compiler when collect2 wants to build
1600 constructors and destructors. Since the environment variables we
1601 use come from an obstack, we don't have to worry about allocating
1610 #ifndef VMS /* nor about VMS */
1612 extern char **environ;
1613 char **old_environ = environ;
1617 int str_len = strlen (str);
1621 while ((ch = *p++) != '\0' && ch != '=')
1627 /* Search for replacing an existing environment variable, and
1628 count the number of total environment variables. */
1629 for (envp = old_environ; *envp; envp++)
1632 if (!strncmp (str, *envp, name_len))
1639 /* Add a new environment variable */
1640 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1642 bcopy ((char *) old_environ, (char *) (environ + 1),
1643 sizeof (char *) * (num_envs+1));
1648 #endif /* HAVE_PUTENV */
1651 /* Build a list of search directories from PATHS.
1652 PREFIX is a string to prepend to the list.
1653 If CHECK_DIR_P is non-zero we ensure the directory exists.
1654 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1655 It is also used by the --print-search-dirs flag. */
1658 build_search_list (paths, prefix, check_dir_p)
1659 struct path_prefix *paths;
1663 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1665 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1666 int first_time = TRUE;
1667 struct prefix_list *pprefix;
1669 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1671 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1673 int len = strlen (pprefix->prefix);
1677 || is_directory (pprefix->prefix, machine_suffix, 0)))
1680 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1683 obstack_grow (&collect_obstack, pprefix->prefix, len);
1684 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1687 if (just_machine_suffix
1688 && pprefix->require_machine_suffix == 2
1690 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1693 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1696 obstack_grow (&collect_obstack, pprefix->prefix, len);
1697 obstack_grow (&collect_obstack, just_machine_suffix,
1701 if (!pprefix->require_machine_suffix)
1704 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1707 obstack_grow (&collect_obstack, pprefix->prefix, len);
1710 obstack_1grow (&collect_obstack, '\0');
1711 return obstack_finish (&collect_obstack);
1714 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1717 putenv_from_prefixes (paths, env_var)
1718 struct path_prefix *paths;
1721 putenv (build_search_list (paths, env_var, 1));
1724 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1725 access to check permissions.
1726 Return 0 if not found, otherwise return its name, allocated with malloc. */
1729 find_a_file (pprefix, name, mode)
1730 struct path_prefix *pprefix;
1735 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1736 struct prefix_list *pl;
1737 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1740 len += strlen (machine_suffix);
1742 temp = xmalloc (len);
1744 /* Determine the filename to execute (special case for absolute paths). */
1746 if (*name == '/' || *name == DIR_SEPARATOR)
1748 if (access (name, mode))
1750 strcpy (temp, name);
1755 for (pl = pprefix->plist; pl; pl = pl->next)
1759 /* Some systems have a suffix for executable files.
1760 So try appending that first. */
1761 if (file_suffix[0] != 0)
1763 strcpy (temp, pl->prefix);
1764 strcat (temp, machine_suffix);
1765 strcat (temp, name);
1766 strcat (temp, file_suffix);
1767 if (access (temp, mode) == 0)
1769 if (pl->used_flag_ptr != 0)
1770 *pl->used_flag_ptr = 1;
1775 /* Now try just the name. */
1776 strcpy (temp, pl->prefix);
1777 strcat (temp, machine_suffix);
1778 strcat (temp, name);
1779 if (access (temp, mode) == 0)
1781 if (pl->used_flag_ptr != 0)
1782 *pl->used_flag_ptr = 1;
1787 /* Certain prefixes are tried with just the machine type,
1788 not the version. This is used for finding as, ld, etc. */
1789 if (just_machine_suffix && pl->require_machine_suffix == 2)
1791 /* Some systems have a suffix for executable files.
1792 So try appending that first. */
1793 if (file_suffix[0] != 0)
1795 strcpy (temp, pl->prefix);
1796 strcat (temp, just_machine_suffix);
1797 strcat (temp, name);
1798 strcat (temp, file_suffix);
1799 if (access (temp, mode) == 0)
1801 if (pl->used_flag_ptr != 0)
1802 *pl->used_flag_ptr = 1;
1807 strcpy (temp, pl->prefix);
1808 strcat (temp, just_machine_suffix);
1809 strcat (temp, name);
1810 if (access (temp, mode) == 0)
1812 if (pl->used_flag_ptr != 0)
1813 *pl->used_flag_ptr = 1;
1818 /* Certain prefixes can't be used without the machine suffix
1819 when the machine or version is explicitly specified. */
1820 if (!pl->require_machine_suffix)
1822 /* Some systems have a suffix for executable files.
1823 So try appending that first. */
1824 if (file_suffix[0] != 0)
1826 strcpy (temp, pl->prefix);
1827 strcat (temp, name);
1828 strcat (temp, file_suffix);
1829 if (access (temp, mode) == 0)
1831 if (pl->used_flag_ptr != 0)
1832 *pl->used_flag_ptr = 1;
1837 strcpy (temp, pl->prefix);
1838 strcat (temp, name);
1839 if (access (temp, mode) == 0)
1841 if (pl->used_flag_ptr != 0)
1842 *pl->used_flag_ptr = 1;
1852 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1853 at the start of the list, otherwise it goes at the end.
1855 If WARN is nonzero, we will warn if no file is found
1856 through this prefix. WARN should point to an int
1857 which will be set to 1 if this entry is used.
1859 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1860 the complete value of machine_suffix.
1861 2 means try both machine_suffix and just_machine_suffix. */
1864 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1865 struct path_prefix *pprefix;
1868 int require_machine_suffix;
1871 struct prefix_list *pl, **prev;
1874 if (!first && pprefix->plist)
1876 for (pl = pprefix->plist; pl->next; pl = pl->next)
1881 prev = &pprefix->plist;
1883 /* Keep track of the longest prefix */
1885 len = strlen (prefix);
1886 if (len > pprefix->max_len)
1887 pprefix->max_len = len;
1889 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1890 pl->prefix = save_string (prefix, len);
1891 pl->require_machine_suffix = require_machine_suffix;
1892 pl->used_flag_ptr = warn;
1899 pl->next = (struct prefix_list *) 0;
1903 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1906 unused_prefix_warnings (pprefix)
1907 struct path_prefix *pprefix;
1909 struct prefix_list *pl = pprefix->plist;
1913 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1915 error ("file path prefix `%s' never used",
1917 /* Prevent duplicate warnings. */
1918 *pl->used_flag_ptr = 1;
1924 /* Get rid of all prefixes built up so far in *PLISTP. */
1927 free_path_prefix (pprefix)
1928 struct path_prefix *pprefix;
1930 struct prefix_list *pl = pprefix->plist;
1931 struct prefix_list *temp;
1937 free (temp->prefix);
1938 free ((char *) temp);
1940 pprefix->plist = (struct prefix_list *) 0;
1943 /* stdin file number. */
1944 #define STDIN_FILE_NO 0
1946 /* stdout file number. */
1947 #define STDOUT_FILE_NO 1
1949 /* value of `pipe': port index for reading. */
1952 /* value of `pipe': port index for writing. */
1953 #define WRITE_PORT 1
1955 /* Pipe waiting from last process, to be used as input for the next one.
1956 Value is STDIN_FILE_NO if no pipe is waiting
1957 (i.e. the next command is the first of a group). */
1959 static int last_pipe_input;
1961 /* Fork one piped subcommand. FUNC is the system call to use
1962 (either execv or execvp). ARGV is the arg vector to use.
1963 NOT_LAST is nonzero if this is not the last subcommand
1964 (i.e. its output should be piped to the next one.) */
1968 #include <process.h>
1970 pexecute (search_flag, program, argv, not_last)
1977 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1981 int i, el = search_flag ? 0 : 4;
1983 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1984 rf = scmd + strlen(program) + 2 + el;
1985 sprintf (scmd, "%s%s @%s.gp", program,
1986 (search_flag ? "" : ".exe"), temp_filename);
1987 argfile = fopen (rf, "w");
1989 pfatal_with_name (rf);
1991 for (i=1; argv[i]; i++)
1994 for (cp = argv[i]; *cp; cp++)
1996 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1997 fputc ('\\', argfile);
1998 fputc (*cp, argfile);
2000 fputc ('\n', argfile);
2011 perror_exec (program);
2012 return MIN_FATAL_STATUS << 8;
2019 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2022 pexecute (search_flag, program, argv, not_last)
2028 int (*func)() = (search_flag ? execv : execvp);
2031 int input_desc = last_pipe_input;
2032 int output_desc = STDOUT_FILE_NO;
2033 int retries, sleep_interval;
2035 /* If this isn't the last process, make a pipe for its output,
2036 and record it as waiting to be the input to the next process. */
2040 if (pipe (pdes) < 0)
2041 pfatal_with_name ("pipe");
2042 output_desc = pdes[WRITE_PORT];
2043 last_pipe_input = pdes[READ_PORT];
2046 last_pipe_input = STDIN_FILE_NO;
2048 /* Fork a subprocess; wait and retry if it fails. */
2050 for (retries = 0; retries < 4; retries++)
2055 sleep (sleep_interval);
2056 sleep_interval *= 2;
2063 pfatal_with_name ("fork");
2065 pfatal_with_name ("vfork");
2071 /* Move the input and output pipes into place, if nec. */
2072 if (input_desc != STDIN_FILE_NO)
2074 close (STDIN_FILE_NO);
2078 if (output_desc != STDOUT_FILE_NO)
2080 close (STDOUT_FILE_NO);
2082 close (output_desc);
2085 /* Close the parent's descs that aren't wanted here. */
2086 if (last_pipe_input != STDIN_FILE_NO)
2087 close (last_pipe_input);
2089 /* Exec the program. */
2090 (*func) (program, argv);
2091 perror_exec (program);
2097 /* In the parent, after forking.
2098 Close the descriptors that we made for this child. */
2099 if (input_desc != STDIN_FILE_NO)
2101 if (output_desc != STDOUT_FILE_NO)
2102 close (output_desc);
2104 /* Return child's process number. */
2109 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2111 #if defined(OS2) || defined(_WIN32)
2115 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2116 to remove the outermost set of double quotes from all arguments. */
2124 for (i = 1; argvec[i] != 0; i++)
2127 char *temp, *newtemp;
2130 len = strlen (temp);
2131 for (j = 0; j < len; j++)
2135 newtemp = xmalloc (len + 2);
2136 strncpy (newtemp, temp, j);
2138 strncpy (&newtemp [j+1], &temp [j], len-j);
2139 newtemp [len+1] = 0;
2149 return (const char* const*) argvec;
2152 #define FIX_ARGV(a) fix_argv(a)
2156 #define FIX_ARGV(a) a
2161 pexecute (search_flag, program, argv, not_last)
2167 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2169 #endif /* OS2 or _WIN32 */
2172 /* Execute the command specified by the arguments on the current line of spec.
2173 When using pipes, this includes several piped-together commands
2174 with `|' between them.
2176 Return 0 if successful, -1 if failed. */
2182 int n_commands; /* # of command. */
2186 char *prog; /* program name. */
2187 char **argv; /* vector of args. */
2188 int pid; /* pid of process for this command. */
2191 struct command *commands; /* each command buffer with above info. */
2193 /* Count # of piped commands. */
2194 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2195 if (strcmp (argbuf[i], "|") == 0)
2198 /* Get storage for each command. */
2200 = (struct command *) alloca (n_commands * sizeof (struct command));
2202 /* Split argbuf into its separate piped processes,
2203 and record info about each one.
2204 Also search for the programs that are to be run. */
2206 commands[0].prog = argbuf[0]; /* first command. */
2207 commands[0].argv = &argbuf[0];
2208 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2210 commands[0].argv[0] = string;
2212 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2213 if (strcmp (argbuf[i], "|") == 0)
2214 { /* each command. */
2216 fatal ("-pipe not supported under MS-DOS");
2218 argbuf[i] = 0; /* termination of command args. */
2219 commands[n_commands].prog = argbuf[i + 1];
2220 commands[n_commands].argv = &argbuf[i + 1];
2221 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2223 commands[n_commands].argv[0] = string;
2227 argbuf[argbuf_index] = 0;
2229 /* If -v, print what we are about to do, and maybe query. */
2233 /* Print each piped command as a separate line. */
2234 for (i = 0; i < n_commands ; i++)
2238 for (j = commands[i].argv; *j; j++)
2239 fprintf (stderr, " %s", *j);
2241 /* Print a pipe symbol after all but the last command. */
2242 if (i + 1 != n_commands)
2243 fprintf (stderr, " |");
2244 fprintf (stderr, "\n");
2248 fprintf (stderr, "\nGo ahead? (y or n) ");
2252 while (getchar () != '\n') ;
2253 if (i != 'y' && i != 'Y')
2258 /* Run each piped subprocess. */
2260 last_pipe_input = STDIN_FILE_NO;
2261 for (i = 0; i < n_commands; i++)
2263 char *string = commands[i].argv[0];
2265 commands[i].pid = pexecute (string != commands[i].prog,
2266 string, commands[i].argv,
2267 i + 1 < n_commands);
2269 if (string != commands[i].prog)
2275 /* Wait for all the subprocesses to finish.
2276 We don't care what order they finish in;
2277 we know that N_COMMANDS waits will get them all.
2278 Ignore subprocesses that we don't know about,
2279 since they can be spawned by the process that exec'ed us. */
2284 for (i = 0; i < n_commands; )
2291 status = pid = commands[i].pid;
2294 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2296 pid = wait (&status);
2302 for (j = 0; j < n_commands; j++)
2303 if (commands[j].pid == pid)
2308 if (WIFSIGNALED (status))
2310 fatal ("Internal compiler error: program %s got fatal signal %d",
2311 commands[j].prog, WTERMSIG (status));
2315 else if (WIFEXITED (status)
2316 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2326 /* Find all the switches given to us
2327 and make a vector describing them.
2328 The elements of the vector are strings, one per switch given.
2329 If a switch uses following arguments, then the `part1' field
2330 is the switch itself and the `args' field
2331 is a null-terminated vector containing the following arguments.
2332 The `live_cond' field is 1 if the switch is true in a conditional spec,
2333 -1 if false (overridden by a later switch), and is initialized to zero.
2334 The `valid' field is nonzero if any spec has looked at this switch;
2335 if it remains zero at the end of the run, it must be meaningless. */
2345 static struct switchstr *switches;
2347 static int n_switches;
2355 /* Also a vector of input files specified. */
2357 static struct infile *infiles;
2359 static int n_infiles;
2361 /* And a vector of corresponding output files is made up later. */
2363 static char **outfiles;
2365 /* Create the vector `switches' and its contents.
2366 Store its length in `n_switches'. */
2369 process_command (argc, argv)
2375 char *spec_lang = 0;
2376 int last_language_n_infiles;
2378 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2383 /* Figure compiler version from version string. */
2385 compiler_version = save_string (version_string, strlen (version_string));
2386 for (temp = compiler_version; *temp; ++temp)
2395 /* Set up the default search paths. */
2397 if (gcc_exec_prefix)
2399 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2400 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2403 /* COMPILER_PATH and LIBRARY_PATH have values
2404 that are lists of directory names with colons. */
2406 temp = getenv ("COMPILER_PATH");
2409 char *startp, *endp;
2410 char *nstore = (char *) alloca (strlen (temp) + 3);
2412 startp = endp = temp;
2415 if (*endp == PATH_SEPARATOR || *endp == 0)
2417 strncpy (nstore, startp, endp-startp);
2419 strcpy (nstore, concat (".", dir_separator_str));
2420 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2422 nstore[endp-startp] = DIR_SEPARATOR;
2423 nstore[endp-startp+1] = 0;
2426 nstore[endp-startp] = 0;
2427 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2430 endp = startp = endp + 1;
2437 temp = getenv ("LIBRARY_PATH");
2438 if (temp && ! cross_compile)
2440 char *startp, *endp;
2441 char *nstore = (char *) alloca (strlen (temp) + 3);
2443 startp = endp = temp;
2446 if (*endp == PATH_SEPARATOR || *endp == 0)
2448 strncpy (nstore, startp, endp-startp);
2450 strcpy (nstore, concat (".", dir_separator_str));
2451 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2453 nstore[endp-startp] = DIR_SEPARATOR;
2454 nstore[endp-startp+1] = 0;
2457 nstore[endp-startp] = 0;
2458 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2461 endp = startp = endp + 1;
2468 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2469 temp = getenv ("LPATH");
2470 if (temp && ! cross_compile)
2472 char *startp, *endp;
2473 char *nstore = (char *) alloca (strlen (temp) + 3);
2475 startp = endp = temp;
2478 if (*endp == PATH_SEPARATOR || *endp == 0)
2480 strncpy (nstore, startp, endp-startp);
2482 strcpy (nstore, concat (".", dir_separator_str));
2483 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2485 nstore[endp-startp] = DIR_SEPARATOR;
2486 nstore[endp-startp+1] = 0;
2489 nstore[endp-startp] = 0;
2490 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2493 endp = startp = endp + 1;
2500 /* Convert new-style -- options to old-style. */
2501 translate_options (&argc, &argv);
2503 /* Scan argv twice. Here, the first time, just count how many switches
2504 there will be in their vector, and how many input files in theirs.
2505 Here we also parse the switches that cc itself uses (e.g. -v). */
2507 for (i = 1; i < argc; i++)
2509 if (! strcmp (argv[i], "-dumpspecs"))
2511 printf ("*asm:\n%s\n\n", asm_spec);
2512 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2513 printf ("*cpp:\n%s\n\n", cpp_spec);
2514 printf ("*cc1:\n%s\n\n", cc1_spec);
2515 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2516 printf ("*endfile:\n%s\n\n", endfile_spec);
2517 printf ("*link:\n%s\n\n", link_spec);
2518 printf ("*lib:\n%s\n\n", lib_spec);
2519 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2520 printf ("*startfile:\n%s\n\n", startfile_spec);
2521 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2522 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2523 printf ("*predefines:\n%s\n\n", cpp_predefines);
2524 printf ("*cross_compile:\n%d\n\n", cross_compile);
2525 printf ("*multilib:\n%s\n\n", multilib_select);
2529 else if (! strcmp (argv[i], "-dumpversion"))
2531 printf ("%s\n", version_string);
2534 else if (! strcmp (argv[i], "-dumpmachine"))
2536 printf ("%s\n", spec_machine);
2539 else if (! strcmp (argv[i], "-print-search-dirs"))
2540 print_search_dirs = 1;
2541 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2542 print_file_name = "libgcc.a";
2543 else if (! strncmp (argv[i], "-print-file-name=", 17))
2544 print_file_name = argv[i] + 17;
2545 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2546 print_prog_name = argv[i] + 17;
2547 else if (! strcmp (argv[i], "-print-multi-lib"))
2548 print_multi_lib = 1;
2549 else if (! strcmp (argv[i], "-print-multi-directory"))
2550 print_multi_directory = 1;
2551 else if (! strncmp (argv[i], "-Wa,", 4))
2554 /* Pass the rest of this option to the assembler. */
2556 n_assembler_options++;
2557 if (!assembler_options)
2559 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2562 = (char **) xrealloc (assembler_options,
2563 n_assembler_options * sizeof (char **));
2565 /* Split the argument at commas. */
2567 for (j = 4; argv[i][j]; j++)
2568 if (argv[i][j] == ',')
2570 assembler_options[n_assembler_options - 1]
2571 = save_string (argv[i] + prev, j - prev);
2572 n_assembler_options++;
2574 = (char **) xrealloc (assembler_options,
2575 n_assembler_options * sizeof (char **));
2578 /* Record the part after the last comma. */
2579 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2581 else if (! strncmp (argv[i], "-Wp,", 4))
2584 /* Pass the rest of this option to the preprocessor. */
2586 n_preprocessor_options++;
2587 if (!preprocessor_options)
2588 preprocessor_options
2589 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2591 preprocessor_options
2592 = (char **) xrealloc (preprocessor_options,
2593 n_preprocessor_options * sizeof (char **));
2595 /* Split the argument at commas. */
2597 for (j = 4; argv[i][j]; j++)
2598 if (argv[i][j] == ',')
2600 preprocessor_options[n_preprocessor_options - 1]
2601 = save_string (argv[i] + prev, j - prev);
2602 n_preprocessor_options++;
2603 preprocessor_options
2604 = (char **) xrealloc (preprocessor_options,
2605 n_preprocessor_options * sizeof (char **));
2608 /* Record the part after the last comma. */
2609 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2611 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2612 /* The +e options to the C++ front-end. */
2614 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2617 /* Split the argument at commas. */
2618 for (j = 3; argv[i][j]; j++)
2619 n_infiles += (argv[i][j] == ',');
2621 else if (strcmp (argv[i], "-Xlinker") == 0)
2624 fatal ("argument to `-Xlinker' is missing");
2629 else if (strncmp (argv[i], "-l", 2) == 0)
2631 else if (argv[i][0] == '-' && argv[i][1] != 0)
2633 register char *p = &argv[i][1];
2634 register int c = *p;
2639 if (p[1] == 0 && i + 1 == argc)
2640 fatal ("argument to `-b' is missing");
2642 spec_machine = argv[++i];
2644 spec_machine = p + 1;
2649 int *temp = (int *) xmalloc (sizeof (int));
2651 if (p[1] == 0 && i + 1 == argc)
2652 fatal ("argument to `-B' is missing");
2657 add_prefix (&exec_prefixes, value, 1, 0, temp);
2658 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2659 add_prefix (&include_prefixes, concat (value, "include"),
2662 /* As a kludge, if the arg is "[foo/]stageN/", just add
2663 "[foo/]include" to the include prefix. */
2665 int len = strlen (value);
2668 && (value[len - 8] == '/'
2669 || value[len - 8] == DIR_SEPARATOR)))
2670 && strncmp (value + len - 7, "stage", 5) == 0
2671 && isdigit (value[len - 2])
2672 && (value[len - 1] == '/'
2673 || value[len - 1] == DIR_SEPARATOR))
2676 add_prefix (&include_prefixes, "include", 1, 0, 0);
2679 char *string = xmalloc (len + 1);
2680 strncpy (string, value, len-7);
2681 strcat (string, "include");
2682 add_prefix (&include_prefixes, string, 1, 0, 0);
2689 case 'v': /* Print our subcommands and print versions. */
2691 /* If they do anything other than exactly `-v', don't set
2692 verbose_flag; rather, continue on to give the error. */
2699 if (p[1] == 0 && i + 1 == argc)
2700 fatal ("argument to `-V' is missing");
2702 spec_version = argv[++i];
2704 spec_version = p + 1;
2705 compiler_version = spec_version;
2709 if (!strcmp (p, "save-temps"))
2711 save_temps_flag = 1;
2718 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2719 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2720 else if (WORD_SWITCH_TAKES_ARG (p))
2721 i += WORD_SWITCH_TAKES_ARG (p);
2728 /* Set up the search paths before we go looking for config files. */
2730 /* These come before the md prefixes so that we will find gcc's subcommands
2731 (such as cpp) rather than those of the host system. */
2732 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2733 as well as trying the machine and the version. */
2735 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2736 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2739 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2740 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2742 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2745 /* If tooldir is relative, base it on exec_prefixes. A relative
2746 tooldir lets us move the installed tree as a unit.
2748 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2749 directories, so that we can search both the user specified directory
2750 and the standard place. */
2752 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2754 if (gcc_exec_prefix)
2756 char *gcc_exec_tooldir_prefix
2757 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2758 spec_version, dir_separator_str, tooldir_prefix);
2760 add_prefix (&exec_prefixes,
2761 concat3 (gcc_exec_tooldir_prefix, "bin",
2764 add_prefix (&startfile_prefixes,
2765 concat3 (gcc_exec_tooldir_prefix, "lib",
2770 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2771 dir_separator_str, spec_version,
2772 dir_separator_str, tooldir_prefix);
2775 add_prefix (&exec_prefixes,
2776 concat3 (tooldir_prefix, "bin", dir_separator_str),
2778 add_prefix (&startfile_prefixes,
2779 concat3 (tooldir_prefix, "lib", dir_separator_str),
2782 /* More prefixes are enabled in main, after we read the specs file
2783 and determine whether this is cross-compilation or not. */
2786 /* Then create the space for the vectors and scan again. */
2788 switches = ((struct switchstr *)
2789 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2790 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2793 last_language_n_infiles = -1;
2795 /* This, time, copy the text of each switch and store a pointer
2796 to the copy in the vector of switches.
2797 Store all the infiles in their vector. */
2799 for (i = 1; i < argc; i++)
2801 /* Just skip the switches that were handled by the preceding loop. */
2802 if (! strncmp (argv[i], "-Wa,", 4))
2804 else if (! strncmp (argv[i], "-Wp,", 4))
2806 else if (! strcmp (argv[i], "-print-search-dirs"))
2808 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2810 else if (! strncmp (argv[i], "-print-file-name=", 17))
2812 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2814 else if (! strcmp (argv[i], "-print-multi-lib"))
2816 else if (! strcmp (argv[i], "-print-multi-directory"))
2818 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2820 /* Compensate for the +e options to the C++ front-end;
2821 they're there simply for cfront call-compatibility. We do
2822 some magic in default_compilers to pass them down properly.
2823 Note we deliberately start at the `+' here, to avoid passing
2824 -e0 or -e1 down into the linker. */
2825 switches[n_switches].part1 = &argv[i][0];
2826 switches[n_switches].args = 0;
2827 switches[n_switches].live_cond = 0;
2828 switches[n_switches].valid = 0;
2831 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2834 /* Split the argument at commas. */
2836 for (j = 4; argv[i][j]; j++)
2837 if (argv[i][j] == ',')
2839 infiles[n_infiles].language = 0;
2840 infiles[n_infiles++].name
2841 = save_string (argv[i] + prev, j - prev);
2844 /* Record the part after the last comma. */
2845 infiles[n_infiles].language = 0;
2846 infiles[n_infiles++].name = argv[i] + prev;
2848 else if (strcmp (argv[i], "-Xlinker") == 0)
2850 infiles[n_infiles].language = 0;
2851 infiles[n_infiles++].name = argv[++i];
2853 else if (strncmp (argv[i], "-l", 2) == 0)
2855 infiles[n_infiles].language = 0;
2856 infiles[n_infiles++].name = argv[i];
2858 else if (argv[i][0] == '-' && argv[i][1] != 0)
2860 register char *p = &argv[i][1];
2861 register int c = *p;
2863 if (c == 'B' || c == 'b' || c == 'V')
2865 /* Skip a separate arg, if any. */
2872 if (p[1] == 0 && i + 1 == argc)
2873 fatal ("argument to `-x' is missing");
2875 spec_lang = argv[++i];
2878 if (! strcmp (spec_lang, "none"))
2879 /* Suppress the warning if -xnone comes after the last input
2880 file, because alternate command interfaces like g++ might
2881 find it useful to place -xnone after each input file. */
2884 last_language_n_infiles = n_infiles;
2887 switches[n_switches].part1 = p;
2888 /* Deal with option arguments in separate argv elements. */
2889 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2890 || WORD_SWITCH_TAKES_ARG (p))
2893 int n_args = WORD_SWITCH_TAKES_ARG (p);
2897 /* Count only the option arguments in separate argv elements. */
2898 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2900 if (i + n_args >= argc)
2901 fatal ("argument to `-%s' is missing", p);
2902 switches[n_switches].args
2903 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2905 switches[n_switches].args[j++] = argv[++i];
2906 /* Null-terminate the vector. */
2907 switches[n_switches].args[j] = 0;
2909 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2911 /* On some systems, ld cannot handle -o or -L without space.
2912 So split the -o or -L from its argument. */
2913 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2914 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2915 switches[n_switches].args[0] = xmalloc (strlen (p));
2916 strcpy (switches[n_switches].args[0], &p[1]);
2917 switches[n_switches].args[1] = 0;
2920 switches[n_switches].args = 0;
2922 switches[n_switches].live_cond = 0;
2923 switches[n_switches].valid = 0;
2924 /* This is always valid, since gcc.c itself understands it. */
2925 if (!strcmp (p, "save-temps"))
2926 switches[n_switches].valid = 1;
2931 #ifdef HAVE_OBJECT_SUFFIX
2932 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2933 if (strlen (argv[i]) > 2
2934 && argv[i][strlen (argv[i]) - 2] == '.'
2935 && argv[i][strlen (argv[i]) - 1] == 'o')
2939 for (j = 0; j < strlen (argv[i]) - 2; j++)
2940 obstack_1grow (&obstack, argv[i][j]);
2942 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2943 obstack_1grow (&obstack, 0);
2944 argv[i] = obstack_finish (&obstack);
2948 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2950 perror_with_name (argv[i]);
2955 infiles[n_infiles].language = spec_lang;
2956 infiles[n_infiles++].name = argv[i];
2961 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2962 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2964 switches[n_switches].part1 = 0;
2965 infiles[n_infiles].name = 0;
2968 /* Process a spec string, accumulating and running commands. */
2970 /* These variables describe the input file name.
2971 input_file_number is the index on outfiles of this file,
2972 so that the output file name can be stored for later use by %o.
2973 input_basename is the start of the part of the input file
2974 sans all directory names, and basename_length is the number
2975 of characters starting there excluding the suffix .c or whatever. */
2977 static char *input_filename;
2978 static int input_file_number;
2979 static int input_filename_length;
2980 static int basename_length;
2981 static char *input_basename;
2982 static char *input_suffix;
2984 /* These are variables used within do_spec and do_spec_1. */
2986 /* Nonzero if an arg has been started and not yet terminated
2987 (with space, tab or newline). */
2988 static int arg_going;
2990 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2991 is a temporary file name. */
2992 static int delete_this_arg;
2994 /* Nonzero means %w has been seen; the next arg to be terminated
2995 is the output file name of this compilation. */
2996 static int this_is_output_file;
2998 /* Nonzero means %s has been seen; the next arg to be terminated
2999 is the name of a library file and we should try the standard
3000 search dirs for it. */
3001 static int this_is_library_file;
3003 /* Nonzero means that the input of this command is coming from a pipe. */
3004 static int input_from_pipe;
3006 /* Process the spec SPEC and run the commands specified therein.
3007 Returns 0 if the spec is successfully processed; -1 if failed. */
3017 delete_this_arg = 0;
3018 this_is_output_file = 0;
3019 this_is_library_file = 0;
3020 input_from_pipe = 0;
3022 value = do_spec_1 (spec, 0, NULL_PTR);
3024 /* Force out any unfinished command.
3025 If -pipe, this forces out the last command if it ended in `|'. */
3028 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3031 if (argbuf_index > 0)
3038 /* Process the sub-spec SPEC as a portion of a larger spec.
3039 This is like processing a whole spec except that we do
3040 not initialize at the beginning and we do not supply a
3041 newline by default at the end.
3042 INSWITCH nonzero means don't process %-sequences in SPEC;
3043 in this case, % is treated as an ordinary character.
3044 This is used while substituting switches.
3045 INSWITCH nonzero also causes SPC not to terminate an argument.
3047 Value is zero unless a line was finished
3048 and the command on that line reported an error. */
3051 do_spec_1 (spec, inswitch, soft_matched_part)
3054 char *soft_matched_part;
3056 register char *p = spec;
3063 /* If substituting a switch, treat all chars like letters.
3064 Otherwise, NL, SPC, TAB and % are special. */
3065 switch (inswitch ? 'a' : c)
3068 /* End of line: finish any pending argument,
3069 then run the pending command if one has been started. */
3072 obstack_1grow (&obstack, 0);
3073 string = obstack_finish (&obstack);
3074 if (this_is_library_file)
3075 string = find_file (string);
3076 store_arg (string, delete_this_arg, this_is_output_file);
3077 if (this_is_output_file)
3078 outfiles[input_file_number] = string;
3082 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3084 for (i = 0; i < n_switches; i++)
3085 if (!strcmp (switches[i].part1, "pipe"))
3088 /* A `|' before the newline means use a pipe here,
3089 but only if -pipe was specified.
3090 Otherwise, execute now and don't pass the `|' as an arg. */
3093 input_from_pipe = 1;
3094 switches[i].valid = 1;
3101 if (argbuf_index > 0)
3107 /* Reinitialize for a new command, and for a new argument. */
3110 delete_this_arg = 0;
3111 this_is_output_file = 0;
3112 this_is_library_file = 0;
3113 input_from_pipe = 0;
3117 /* End any pending argument. */
3120 obstack_1grow (&obstack, 0);
3121 string = obstack_finish (&obstack);
3122 if (this_is_library_file)
3123 string = find_file (string);
3124 store_arg (string, delete_this_arg, this_is_output_file);
3125 if (this_is_output_file)
3126 outfiles[input_file_number] = string;
3130 obstack_1grow (&obstack, c);
3136 /* Space or tab ends an argument if one is pending. */
3139 obstack_1grow (&obstack, 0);
3140 string = obstack_finish (&obstack);
3141 if (this_is_library_file)
3142 string = find_file (string);
3143 store_arg (string, delete_this_arg, this_is_output_file);
3144 if (this_is_output_file)
3145 outfiles[input_file_number] = string;
3147 /* Reinitialize for a new argument. */
3149 delete_this_arg = 0;
3150 this_is_output_file = 0;
3151 this_is_library_file = 0;
3158 fatal ("Invalid specification! Bug in cc.");
3161 obstack_grow (&obstack, input_basename, basename_length);
3166 delete_this_arg = 2;
3169 /* Dump out the directories specified with LIBRARY_PATH,
3170 followed by the absolute directories
3171 that we search for startfiles. */
3174 struct prefix_list *pl = startfile_prefixes.plist;
3176 char *buffer = (char *) xmalloc (bufsize);
3179 for (; pl; pl = pl->next)
3181 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3182 /* Used on systems which record the specified -L dirs
3183 and use them to search for dynamic linking. */
3184 /* Relative directories always come from -B,
3185 and it is better not to use them for searching
3186 at run time. In particular, stage1 loses */
3187 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3190 /* Try subdirectory if there is one. */
3191 if (multilib_dir != NULL)
3195 if (strlen (pl->prefix) + strlen (machine_suffix)
3197 bufsize = (strlen (pl->prefix)
3198 + strlen (machine_suffix)) * 2 + 1;
3199 buffer = (char *) xrealloc (buffer, bufsize);
3200 strcpy (buffer, pl->prefix);
3201 strcat (buffer, machine_suffix);
3202 if (is_directory (buffer, multilib_dir, 1))
3204 do_spec_1 ("-L", 0, NULL_PTR);
3205 #ifdef SPACE_AFTER_L_OPTION
3206 do_spec_1 (" ", 0, NULL_PTR);
3208 do_spec_1 (buffer, 1, NULL_PTR);
3209 do_spec_1 (multilib_dir, 1, NULL_PTR);
3210 /* Make this a separate argument. */
3211 do_spec_1 (" ", 0, NULL_PTR);
3214 if (!pl->require_machine_suffix)
3216 if (is_directory (pl->prefix, multilib_dir, 1))
3218 do_spec_1 ("-L", 0, NULL_PTR);
3219 #ifdef SPACE_AFTER_L_OPTION
3220 do_spec_1 (" ", 0, NULL_PTR);
3222 do_spec_1 (pl->prefix, 1, NULL_PTR);
3223 do_spec_1 (multilib_dir, 1, NULL_PTR);
3224 /* Make this a separate argument. */
3225 do_spec_1 (" ", 0, NULL_PTR);
3231 if (is_directory (pl->prefix, machine_suffix, 1))
3233 do_spec_1 ("-L", 0, NULL_PTR);
3234 #ifdef SPACE_AFTER_L_OPTION
3235 do_spec_1 (" ", 0, NULL_PTR);
3237 do_spec_1 (pl->prefix, 1, NULL_PTR);
3238 /* Remove slash from machine_suffix. */
3239 if (strlen (machine_suffix) >= bufsize)
3240 bufsize = strlen (machine_suffix) * 2 + 1;
3241 buffer = (char *) xrealloc (buffer, bufsize);
3242 strcpy (buffer, machine_suffix);
3243 idx = strlen (buffer);
3244 if (buffer[idx - 1] == '/'
3245 || buffer[idx - 1] == DIR_SEPARATOR)
3246 buffer[idx - 1] = 0;
3247 do_spec_1 (buffer, 1, NULL_PTR);
3248 /* Make this a separate argument. */
3249 do_spec_1 (" ", 0, NULL_PTR);
3252 if (!pl->require_machine_suffix)
3254 if (is_directory (pl->prefix, "", 1))
3256 do_spec_1 ("-L", 0, NULL_PTR);
3257 #ifdef SPACE_AFTER_L_OPTION
3258 do_spec_1 (" ", 0, NULL_PTR);
3260 /* Remove slash from pl->prefix. */
3261 if (strlen (pl->prefix) >= bufsize)
3262 bufsize = strlen (pl->prefix) * 2 + 1;
3263 buffer = (char *) xrealloc (buffer, bufsize);
3264 strcpy (buffer, pl->prefix);
3265 idx = strlen (buffer);
3266 if (buffer[idx - 1] == '/'
3267 || buffer[idx - 1] == DIR_SEPARATOR)
3268 buffer[idx - 1] = 0;
3269 do_spec_1 (buffer, 1, NULL_PTR);
3270 /* Make this a separate argument. */
3271 do_spec_1 (" ", 0, NULL_PTR);
3280 /* {...:%efoo} means report an error with `foo' as error message
3281 and don't execute any more commands for this file. */
3285 while (*p != 0 && *p != '\n') p++;
3286 buf = (char *) alloca (p - q + 1);
3287 strncpy (buf, q, p - q);
3297 if (save_temps_flag)
3299 obstack_grow (&obstack, input_basename, basename_length);
3300 delete_this_arg = 0;
3304 #ifdef MKTEMP_EACH_FILE
3305 /* ??? This has a problem: the total number of
3306 values mktemp can return is limited.
3307 That matters for the names of object files.
3308 In 2.4, do something about that. */
3309 struct temp_name *t;
3311 while (*p == '.' || isalpha (*p))
3314 /* See if we already have an association of %g/%u/%U and
3316 for (t = temp_names; t; t = t->next)
3317 if (t->length == p - suffix
3318 && strncmp (t->suffix, suffix, p - suffix) == 0
3319 && t->unique == (c != 'g'))
3322 /* Make a new association if needed. %u requires one. */
3323 if (t == 0 || c == 'u')
3327 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3328 t->next = temp_names;
3331 t->length = p - suffix;
3332 t->suffix = save_string (suffix, p - suffix);
3333 t->unique = (c != 'g');
3334 choose_temp_base ();
3335 t->filename = temp_filename;
3336 t->filename_length = temp_filename_length;
3339 obstack_grow (&obstack, t->filename, t->filename_length);
3340 delete_this_arg = 1;
3342 obstack_grow (&obstack, temp_filename, temp_filename_length);
3343 if (c == 'u' || c == 'U')
3349 sprintf (buff, "%d", unique);
3350 obstack_grow (&obstack, buff, strlen (buff));
3353 delete_this_arg = 1;
3359 obstack_grow (&obstack, input_filename, input_filename_length);
3365 struct prefix_list *pl = include_prefixes.plist;
3367 if (gcc_exec_prefix)
3369 do_spec_1 ("-iprefix", 1, NULL_PTR);
3370 /* Make this a separate argument. */
3371 do_spec_1 (" ", 0, NULL_PTR);
3372 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3373 do_spec_1 (" ", 0, NULL_PTR);
3376 for (; pl; pl = pl->next)
3378 do_spec_1 ("-isystem", 1, NULL_PTR);
3379 /* Make this a separate argument. */
3380 do_spec_1 (" ", 0, NULL_PTR);
3381 do_spec_1 (pl->prefix, 1, NULL_PTR);
3382 do_spec_1 (" ", 0, NULL_PTR);
3388 for (i = 0; i < n_infiles; i++)
3389 store_arg (outfiles[i], 0, 0);
3393 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3398 this_is_library_file = 1;
3402 this_is_output_file = 1;
3407 int index = argbuf_index;
3408 /* Handle the {...} following the %W. */
3411 p = handle_braces (p + 1);
3414 /* If any args were output, mark the last one for deletion
3416 if (argbuf_index != index)
3417 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3421 /* %x{OPTION} records OPTION for %X to output. */
3427 /* Skip past the option value and make a copy. */
3432 string = save_string (p1 + 1, p - p1 - 2);
3434 /* See if we already recorded this option. */
3435 for (i = 0; i < n_linker_options; i++)
3436 if (! strcmp (string, linker_options[i]))
3442 /* This option is new; add it. */
3444 if (!linker_options)
3446 = (char **) xmalloc (n_linker_options * sizeof (char **));
3449 = (char **) xrealloc (linker_options,
3450 n_linker_options * sizeof (char **));
3452 linker_options[n_linker_options - 1] = string;
3456 /* Dump out the options accumulated previously using %x. */
3458 for (i = 0; i < n_linker_options; i++)
3460 do_spec_1 (linker_options[i], 1, NULL_PTR);
3461 /* Make each accumulated option a separate argument. */
3462 do_spec_1 (" ", 0, NULL_PTR);
3466 /* Dump out the options accumulated previously using -Wa,. */
3468 for (i = 0; i < n_assembler_options; i++)
3470 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3471 /* Make each accumulated option a separate argument. */
3472 do_spec_1 (" ", 0, NULL_PTR);
3476 /* Dump out the options accumulated previously using -Wp,. */
3478 for (i = 0; i < n_preprocessor_options; i++)
3480 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3481 /* Make each accumulated option a separate argument. */
3482 do_spec_1 (" ", 0, NULL_PTR);
3486 /* Here are digits and numbers that just process
3487 a certain constant string as a spec. */
3490 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3496 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3502 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3508 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3514 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3520 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3526 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3532 value = do_spec_1 (link_spec, 0, NULL_PTR);
3538 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3544 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3551 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3555 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3559 if (! strncmp (y, "-D", 2))
3560 /* Copy the whole option. */
3561 while (*y && *y != ' ' && *y != '\t')
3563 else if (*y == ' ' || *y == '\t')
3564 /* Copy whitespace to the result. */
3566 /* Don't copy other options. */
3573 value = do_spec_1 (buf, 0, NULL_PTR);
3581 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3585 /* Copy all of CPP_PREDEFINES into BUF,
3586 but put __ after every -D and at the end of each arg. */
3590 if (! strncmp (y, "-D", 2))
3598 || (*(y+1) != '_' && ! isupper (*(y+1))))
3600 /* Stick __ at front of macro name. */
3603 /* Arrange to stick __ at the end as well. */
3607 /* Copy the macro name. */
3608 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3617 /* Copy the value given, if any. */
3618 while (*y && *y != ' ' && *y != '\t')
3621 else if (*y == ' ' || *y == '\t')
3622 /* Copy whitespace to the result. */
3624 /* Don't copy -A options */
3630 /* Copy all of CPP_PREDEFINES into BUF,
3631 but put __ after every -D. */
3635 if (! strncmp (y, "-D", 2))
3640 || (*(y+1) != '_' && ! isupper (*(y+1))))
3642 /* Stick -D__ at front of macro name. */
3648 /* Copy the macro name. */
3649 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3652 /* Copy the value given, if any. */
3653 while (*y && *y != ' ' && *y != '\t')
3658 /* Do not copy this macro - we have just done it before */
3659 while (*y && *y != ' ' && *y != '\t')
3663 else if (*y == ' ' || *y == '\t')
3664 /* Copy whitespace to the result. */
3666 /* Don't copy -A options */
3672 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3676 if (! strncmp (y, "-A", 2))
3677 /* Copy the whole option. */
3678 while (*y && *y != ' ' && *y != '\t')
3680 else if (*y == ' ' || *y == '\t')
3681 /* Copy whitespace to the result. */
3683 /* Don't copy other options. */
3690 value = do_spec_1 (buf, 0, NULL_PTR);
3697 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3702 /* Here we define characters other than letters and digits. */
3705 p = handle_braces (p);
3711 obstack_1grow (&obstack, '%');
3715 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3716 do_spec_1 (" ", 0, NULL_PTR);
3719 /* Process a string found as the value of a spec given by name.
3720 This feature allows individual machine descriptions
3721 to add and use their own specs.
3722 %[...] modifies -D options the way %P does;
3723 %(...) uses the spec unmodified. */
3728 struct spec_list *sl;
3731 /* The string after the S/P is the name of a spec that is to be
3733 while (*p && *p != ')' && *p != ']')
3736 /* See if it's in the list */
3737 for (len = p - name, sl = specs; sl; sl = sl->next)
3738 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3748 value = do_spec_1 (name, 0, NULL_PTR);
3754 char *x = (char *) alloca (strlen (name) * 2 + 1);
3758 /* Copy all of NAME into BUF, but put __ after
3759 every -D and at the end of each arg, */
3762 if (! strncmp (y, "-D", 2))
3770 else if (*y == ' ' || *y == 0)
3784 value = do_spec_1 (buf, 0, NULL_PTR);
3790 /* Discard the closing paren or bracket. */
3798 int c1 = *p++; /* Select first or second version number. */
3799 char *v = compiler_version;
3801 /* If desired, advance to second version number. */
3804 /* Set P after the first period. */
3805 while (*v != 0 && *v != ' ' && *v != '.')
3810 /* Set Q at the next period or at the end. */
3812 while (*q != 0 && *q != ' ' && *q != '.')
3814 /* Empty string means zero. */
3820 /* Put that part into the command. */
3821 obstack_grow (&obstack, v, q - v);
3827 if (input_from_pipe)
3828 do_spec_1 ("-", 0, NULL_PTR);
3837 /* Backslash: treat next character as ordinary. */
3842 /* Ordinary character: put it into the current argument. */
3843 obstack_1grow (&obstack, c);
3847 return 0; /* End of string */
3850 /* Return 0 if we call do_spec_1 and that returns -1. */
3863 /* A `|' after the open-brace means,
3864 if the test fails, output a single minus sign rather than nothing.
3865 This is used in %{|!pipe:...}. */
3869 /* A `!' after the open-brace negates the condition:
3870 succeed if the specified switch is not present. */
3874 /* A `.' after the open-brace means test against the current suffix. */
3884 while (*p != ':' && *p != '}') p++;
3887 register int count = 1;
3905 int found = (input_suffix != 0
3906 && strlen (input_suffix) == p - filter
3907 && strncmp (input_suffix, filter, p - filter) == 0);
3913 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3918 else if (p[-1] == '*' && p[0] == '}')
3920 /* Substitute all matching switches as separate args. */
3923 for (i = 0; i < n_switches; i++)
3924 if (!strncmp (switches[i].part1, filter, p - filter)
3925 && check_live_switch (i, p - filter))
3930 /* Test for presence of the specified switch. */
3934 /* If name specified ends in *, as in {x*:...},
3935 check for %* and handle that case. */
3936 if (p[-1] == '*' && !negate)
3941 /* First see whether we have %*. */
3945 if (*r == '%' && r[1] == '*')
3949 /* If we do, handle that case. */
3952 /* Substitute all matching switches as separate args.
3953 But do this by substituting for %*
3954 in the text that follows the colon. */
3956 unsigned hard_match_len = p - filter - 1;
3957 char *string = save_string (p + 1, q - p - 2);
3959 for (i = 0; i < n_switches; i++)
3960 if (!strncmp (switches[i].part1, filter, hard_match_len)
3961 && check_live_switch (i, -1))
3963 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3964 /* Pass any arguments this switch has. */
3972 /* If name specified ends in *, as in {x*:...},
3973 check for presence of any switch name starting with x. */
3976 for (i = 0; i < n_switches; i++)
3978 unsigned hard_match_len = p - filter - 1;
3980 if (!strncmp (switches[i].part1, filter, hard_match_len)
3981 && check_live_switch (i, hard_match_len))
3987 /* Otherwise, check for presence of exact name specified. */
3990 for (i = 0; i < n_switches; i++)
3992 if (!strncmp (switches[i].part1, filter, p - filter)
3993 && switches[i].part1[p - filter] == 0
3994 && check_live_switch (i, -1))
4002 /* If it is as desired (present for %{s...}, absent for %{-s...})
4003 then substitute either the switch or the specified
4004 conditional text. */
4005 if (present != negate)
4013 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4019 /* Here if a %{|...} conditional fails: output a minus sign,
4020 which means "standard output" or "standard input". */
4021 do_spec_1 ("-", 0, NULL_PTR);
4028 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4029 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4030 spec, or -1 if either exact match or %* is used.
4032 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4033 whose value does not begin with "no-" is obsoleted by the same value
4034 with the "no-", similarly for a switch with the "no-" prefix. */
4037 check_live_switch (switchnum, prefix_length)
4041 char *name = switches[switchnum].part1;
4044 /* In the common case of {<at-most-one-letter>*}, a negating
4045 switch would always match, so ignore that case. We will just
4046 send the conflicting switches to the compiler phase. */
4047 if (prefix_length >= 0 && prefix_length <= 1)
4050 /* If we already processed this switch and determined if it was
4051 live or not, return our past determination. */
4052 if (switches[switchnum].live_cond != 0)
4053 return switches[switchnum].live_cond > 0;
4055 /* Now search for duplicate in a manner that depends on the name. */
4059 for (i = switchnum + 1; i < n_switches; i++)
4060 if (switches[i].part1[0] == 'O')
4062 switches[switchnum].valid = 1;
4063 switches[switchnum].live_cond = -1;
4068 case 'W': case 'f': case 'm':
4069 if (! strncmp (name + 1, "no-", 3))
4071 /* We have Xno-YYY, search for XYYY. */
4072 for (i = switchnum + 1; i < n_switches; i++)
4073 if (switches[i].part1[0] == name[0]
4074 && ! strcmp (&switches[i].part1[1], &name[4]))
4076 switches[switchnum].valid = 1;
4077 switches[switchnum].live_cond = -1;
4083 /* We have XYYY, search for Xno-YYY. */
4084 for (i = switchnum + 1; i < n_switches; i++)
4085 if (switches[i].part1[0] == name[0]
4086 && switches[i].part1[1] == 'n'
4087 && switches[i].part1[2] == 'o'
4088 && switches[i].part1[3] == '-'
4089 && !strcmp (&switches[i].part1[4], &name[1]))
4091 switches[switchnum].valid = 1;
4092 switches[switchnum].live_cond = -1;
4099 /* Otherwise the switch is live. */
4100 switches[switchnum].live_cond = 1;
4104 /* Pass a switch to the current accumulating command
4105 in the same form that we received it.
4106 SWITCHNUM identifies the switch; it is an index into
4107 the vector of switches gcc received, which is `switches'.
4108 This cannot fail since it never finishes a command line.
4110 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4113 give_switch (switchnum, omit_first_word)
4115 int omit_first_word;
4117 if (!omit_first_word)
4119 do_spec_1 ("-", 0, NULL_PTR);
4120 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4122 do_spec_1 (" ", 0, NULL_PTR);
4123 if (switches[switchnum].args != 0)
4126 for (p = switches[switchnum].args; *p; p++)
4128 do_spec_1 (*p, 1, NULL_PTR);
4129 do_spec_1 (" ", 0, NULL_PTR);
4132 switches[switchnum].valid = 1;
4135 /* Search for a file named NAME trying various prefixes including the
4136 user's -B prefix and some standard ones.
4137 Return the absolute file name found. If nothing is found, return NAME. */
4145 /* Try multilib_dir if it is defined. */
4146 if (multilib_dir != NULL)
4150 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4151 strcpy (try, multilib_dir);
4152 strcat (try, dir_separator_str);
4155 newname = find_a_file (&startfile_prefixes, try, R_OK);
4157 /* If we don't find it in the multi library dir, then fall
4158 through and look for it in the normal places. */
4159 if (newname != NULL)
4163 newname = find_a_file (&startfile_prefixes, name, R_OK);
4164 return newname ? newname : name;
4167 /* Determine whether a directory exists. If LINKER, return 0 for
4168 certain fixed names not needed by the linker. If not LINKER, it is
4169 only important to return 0 if the host machine has a small ARG_MAX
4173 is_directory (path1, path2, linker)
4178 int len1 = strlen (path1);
4179 int len2 = strlen (path2);
4180 char *path = (char *) alloca (3 + len1 + len2);
4184 #ifndef SMALL_ARG_MAX
4189 /* Construct the path from the two parts. Ensure the string ends with "/.".
4190 The resulting path will be a directory even if the given path is a
4192 bcopy (path1, path, len1);
4193 bcopy (path2, path + len1, len2);
4194 cp = path + len1 + len2;
4195 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4196 *cp++ = DIR_SEPARATOR;
4200 /* Exclude directories that the linker is known to search. */
4203 && strcmp (path, concat4 (dir_separator_str, "lib",
4204 dir_separator_str, ".")) == 0)
4206 && strcmp (path, concat6 (dir_separator_str, "usr",
4207 dir_separator_str, "lib",
4208 dir_separator_str, ".")) == 0)))
4211 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4214 /* On fatal signals, delete all the temporary files. */
4217 fatal_error (signum)
4220 signal (signum, SIG_DFL);
4221 delete_failure_queue ();
4222 delete_temp_files ();
4223 /* Get the same signal again, this time not handled,
4224 so its normal effect occurs. */
4225 kill (getpid (), signum);
4236 int linker_was_run = 0;
4237 char *explicit_link_files;
4241 p = argv[0] + strlen (argv[0]);
4242 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4245 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4246 signal (SIGINT, fatal_error);
4248 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4249 signal (SIGHUP, fatal_error);
4251 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4252 signal (SIGTERM, fatal_error);
4254 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4255 signal (SIGPIPE, fatal_error);
4259 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4261 obstack_init (&obstack);
4263 /* Set up to remember the pathname of gcc and any options
4264 needed for collect. We use argv[0] instead of programname because
4265 we need the complete pathname. */
4266 obstack_init (&collect_obstack);
4267 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4268 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4269 putenv (obstack_finish (&collect_obstack));
4271 #ifdef INIT_ENVIRONMENT
4272 /* Set up any other necessary machine specific environment variables. */
4273 putenv (INIT_ENVIRONMENT);
4276 /* Choose directory for temp files. */
4278 choose_temp_base ();
4280 /* Make a table of what switches there are (switches, n_switches).
4281 Make a table of specified input files (infiles, n_infiles).
4282 Decode switches that are handled locally. */
4284 process_command (argc, argv);
4286 /* Initialize the vector of specs to just the default.
4287 This means one element containing 0s, as a terminator. */
4289 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4290 bcopy ((char *) default_compilers, (char *) compilers,
4291 sizeof default_compilers);
4292 n_compilers = n_default_compilers;
4294 /* Read specs from a file if there is one. */
4296 machine_suffix = concat4 (spec_machine, dir_separator_str,
4297 spec_version, dir_separator_str);
4298 just_machine_suffix = concat (spec_machine, dir_separator_str);
4300 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4301 /* Read the specs file unless it is a default one. */
4302 if (specs_file != 0 && strcmp (specs_file, "specs"))
4303 read_specs (specs_file);
4305 /* If not cross-compiling, look for startfiles in the standard places. */
4306 /* The fact that these are done here, after reading the specs file,
4307 means that it cannot be found in these directories.
4308 But that's okay. It should never be there anyway. */
4311 #ifdef MD_EXEC_PREFIX
4312 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4313 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4316 #ifdef MD_STARTFILE_PREFIX
4317 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4320 #ifdef MD_STARTFILE_PREFIX_1
4321 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4324 /* If standard_startfile_prefix is relative, base it on
4325 standard_exec_prefix. This lets us move the installed tree
4326 as a unit. If GCC_EXEC_PREFIX is defined, base
4327 standard_startfile_prefix on that as well. */
4328 if (*standard_startfile_prefix == '/'
4329 || *standard_startfile_prefix == DIR_SEPARATOR)
4330 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4334 if (gcc_exec_prefix)
4335 add_prefix (&startfile_prefixes,
4336 concat (gcc_exec_prefix, standard_startfile_prefix),
4338 add_prefix (&startfile_prefixes,
4339 concat3 (standard_exec_prefix,
4341 standard_startfile_prefix),
4345 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4347 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4349 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4350 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4355 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4356 add_prefix (&startfile_prefixes,
4357 concat (gcc_exec_prefix, standard_startfile_prefix),
4361 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4362 if (gcc_exec_prefix)
4364 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4365 + strlen (spec_version)
4366 + strlen (spec_machine) + 3);
4367 strcpy (temp, gcc_exec_prefix);
4368 strcat (temp, spec_machine);
4369 strcat (temp, dir_separator_str);
4370 strcat (temp, spec_version);
4371 strcat (temp, dir_separator_str);
4372 gcc_exec_prefix = temp;
4375 /* Now we have the specs.
4376 Set the `valid' bits for switches that match anything in any spec. */
4378 validate_all_switches ();
4380 /* Now that we have the switches and the specs, set
4381 the subdirectory based on the options. */
4382 set_multilib_dir ();
4384 /* Warn about any switches that no pass was interested in. */
4386 for (i = 0; i < n_switches; i++)
4387 if (! switches[i].valid)
4388 error ("unrecognized option `-%s'", switches[i].part1);
4390 /* Obey some of the options. */
4392 if (print_search_dirs)
4394 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4395 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4396 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4400 if (print_file_name)
4402 printf ("%s\n", find_file (print_file_name));
4406 if (print_prog_name)
4408 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4409 printf ("%s\n", (newname ? newname : print_prog_name));
4413 if (print_multi_lib)
4415 print_multilib_info ();
4419 if (print_multi_directory)
4421 if (multilib_dir == NULL)
4424 printf ("%s\n", multilib_dir);
4430 if (! strcmp (version_string, compiler_version))
4431 fprintf (stderr, "gcc version %s\n", version_string);
4433 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4434 version_string, compiler_version);
4441 fatal ("No input files");
4443 /* Make a place to record the compiler output file names
4444 that correspond to the input files. */
4446 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4447 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4449 /* Record which files were specified explicitly as link input. */
4451 explicit_link_files = xmalloc (n_infiles);
4452 bzero (explicit_link_files, n_infiles);
4454 for (i = 0; i < n_infiles; i++)
4456 register struct compiler *cp = 0;
4457 int this_file_error = 0;
4459 /* Tell do_spec what to substitute for %i. */
4461 input_filename = infiles[i].name;
4462 input_filename_length = strlen (input_filename);
4463 input_file_number = i;
4465 /* Use the same thing in %o, unless cp->spec says otherwise. */
4467 outfiles[i] = input_filename;
4469 /* Figure out which compiler from the file's suffix. */
4471 cp = lookup_compiler (infiles[i].name, input_filename_length,
4472 infiles[i].language);
4476 /* Ok, we found an applicable compiler. Run its spec. */
4477 /* First say how much of input_filename to substitute for %b */
4481 input_basename = input_filename;
4482 for (p = input_filename; *p; p++)
4483 if (*p == '/' || *p == DIR_SEPARATOR)
4484 input_basename = p + 1;
4486 /* Find a suffix starting with the last period,
4487 and set basename_length to exclude that suffix. */
4488 basename_length = strlen (input_basename);
4489 p = input_basename + basename_length;
4490 while (p != input_basename && *p != '.') --p;
4491 if (*p == '.' && p != input_basename)
4493 basename_length = p - input_basename;
4494 input_suffix = p + 1;
4500 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4502 len += strlen (cp->spec[j]);
4504 p = (char *) xmalloc (len + 1);
4507 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4510 strcpy (p + len, cp->spec[j]);
4511 len += strlen (cp->spec[j]);
4514 value = do_spec (p);
4517 this_file_error = 1;
4520 /* If this file's name does not contain a recognized suffix,
4521 record it as explicit linker input. */
4524 explicit_link_files[i] = 1;
4526 /* Clear the delete-on-failure queue, deleting the files in it
4527 if this compilation failed. */
4529 if (this_file_error)
4531 delete_failure_queue ();
4534 /* If this compilation succeeded, don't delete those files later. */
4535 clear_failure_queue ();
4538 /* Run ld to link all the compiler output files. */
4540 if (error_count == 0)
4542 int tmp = execution_count;
4546 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4548 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4549 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4551 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4553 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4554 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4557 for (i = 0; i < n_switches; i++)
4561 obstack_grow (&collect_obstack, " ", 1);
4564 obstack_grow (&collect_obstack, "-", 1);
4565 obstack_grow (&collect_obstack, switches[i].part1,
4566 strlen (switches[i].part1));
4568 for (args = switches[i].args; args && *args; args++)
4570 obstack_grow (&collect_obstack, " ", 1);
4571 obstack_grow (&collect_obstack, *args, strlen (*args));
4574 obstack_grow (&collect_obstack, "\0", 1);
4575 putenv (obstack_finish (&collect_obstack));
4577 value = do_spec (link_command_spec);
4580 linker_was_run = (tmp != execution_count);
4583 /* Warn if a -B option was specified but the prefix was never used. */
4584 unused_prefix_warnings (&exec_prefixes);
4585 unused_prefix_warnings (&startfile_prefixes);
4587 /* If options said don't run linker,
4588 complain about input files to be given to the linker. */
4590 if (! linker_was_run && error_count == 0)
4591 for (i = 0; i < n_infiles; i++)
4592 if (explicit_link_files[i])
4593 error ("%s: linker input file unused since linking not done",
4596 /* Delete some or all of the temporary files we made. */
4599 delete_failure_queue ();
4600 delete_temp_files ();
4602 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4607 /* Find the proper compilation spec for the file name NAME,
4608 whose length is LENGTH. LANGUAGE is the specified language,
4609 or 0 if none specified. */
4611 static struct compiler *
4612 lookup_compiler (name, length, language)
4617 struct compiler *cp;
4619 /* Look for the language, if one is spec'd. */
4622 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4626 if (cp->suffix[0] == '@'
4627 && !strcmp (cp->suffix + 1, language))
4631 error ("language %s not recognized", language);
4634 /* Look for a suffix. */
4635 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4637 if (/* The suffix `-' matches only the file name `-'. */
4638 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4640 (strlen (cp->suffix) < length
4641 /* See if the suffix matches the end of NAME. */
4643 && (!strcmp (cp->suffix,
4644 name + length - strlen (cp->suffix))
4645 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4646 && !strcasecmp (cp->suffix,
4647 name + length - strlen (cp->suffix)))))
4649 && !strcmp (cp->suffix,
4650 name + length - strlen (cp->suffix))))
4653 if (cp->spec[0][0] == '@')
4655 struct compiler *new;
4656 /* An alias entry maps a suffix to a language.
4657 Search for the language; pass 0 for NAME and LENGTH
4658 to avoid infinite recursion if language not found.
4659 Construct the new compiler spec. */
4660 language = cp->spec[0] + 1;
4661 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4662 new->suffix = cp->suffix;
4663 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4664 (char *) new->spec, sizeof new->spec);
4667 /* A non-alias entry: return it. */
4679 register char *value = (char *) malloc (size);
4681 fatal ("virtual memory exhausted");
4686 xrealloc (ptr, size)
4690 register char *value = (char *) realloc (ptr, size);
4692 fatal ("virtual memory exhausted");
4696 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4702 int len1 = strlen (s1);
4703 int len2 = strlen (s2);
4704 char *result = xmalloc (len1 + len2 + 1);
4706 strcpy (result, s1);
4707 strcpy (result + len1, s2);
4708 *(result + len1 + len2) = 0;
4714 concat3 (s1, s2, s3)
4717 return concat (concat (s1, s2), s3);
4721 concat4 (s1, s2, s3, s4)
4722 char *s1, *s2, *s3, *s4;
4724 return concat (concat (s1, s2), concat (s3, s4));
4728 concat6 (s1, s2, s3, s4, s5, s6)
4729 char *s1, *s2, *s3, *s4, *s5, *s6;
4731 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4735 save_string (s, len)
4739 register char *result = xmalloc (len + 1);
4741 bcopy (s, result, len);
4747 pfatal_with_name (name)
4752 if (errno < sys_nerr)
4753 s = concat ("%s: ", my_strerror( errno ));
4755 s = "cannot open %s";
4760 perror_with_name (name)
4765 if (errno < sys_nerr)
4766 s = concat ("%s: ", my_strerror( errno ));
4768 s = "cannot open %s";
4778 if (errno < sys_nerr)
4779 s = concat ("installation problem, cannot exec %s: ", my_strerror( errno ));
4781 s = "installation problem, cannot exec %s";
4785 /* More 'friendly' abort that prints the line and file.
4786 config.h can #define abort fancy_abort if you like that sort of thing. */
4791 fatal ("Internal gcc abort.");
4796 /* Output an error message and exit */
4799 fatal VPROTO((char *format, ...))
4806 VA_START (ap, format);
4809 format = va_arg (ap, char*);
4812 fprintf (stderr, "%s: ", programname);
4813 vfprintf (stderr, format, ap);
4815 fprintf (stderr, "\n");
4816 delete_temp_files ();
4821 error VPROTO((char *format, ...))
4828 VA_START (ap, format);
4831 format = va_arg (ap, char*);
4834 fprintf (stderr, "%s: ", programname);
4835 vfprintf (stderr, format, ap);
4838 fprintf (stderr, "\n");
4841 #else /* not HAVE_VPRINTF */
4844 fatal (msg, arg1, arg2)
4845 char *msg, *arg1, *arg2;
4847 error (msg, arg1, arg2);
4848 delete_temp_files ();
4853 error (msg, arg1, arg2)
4854 char *msg, *arg1, *arg2;
4856 fprintf (stderr, "%s: ", programname);
4857 fprintf (stderr, msg, arg1, arg2);
4858 fprintf (stderr, "\n");
4861 #endif /* not HAVE_VPRINTF */
4865 validate_all_switches ()
4867 struct compiler *comp;
4870 struct spec_list *spec;
4872 for (comp = compilers; comp->spec[0]; comp++)
4875 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4879 if (c == '%' && *p == '{')
4880 /* We have a switch spec. */
4881 validate_switches (p + 1);
4885 /* look through the linked list of extra specs read from the specs file */
4886 for (spec = specs; spec ; spec = spec->next)
4890 if (c == '%' && *p == '{')
4891 /* We have a switch spec. */
4892 validate_switches (p + 1);
4895 p = link_command_spec;
4897 if (c == '%' && *p == '{')
4898 /* We have a switch spec. */
4899 validate_switches (p + 1);
4901 /* Now notice switches mentioned in the machine-specific specs. */
4905 if (c == '%' && *p == '{')
4906 /* We have a switch spec. */
4907 validate_switches (p + 1);
4911 if (c == '%' && *p == '{')
4912 /* We have a switch spec. */
4913 validate_switches (p + 1);
4917 if (c == '%' && *p == '{')
4918 /* We have a switch spec. */
4919 validate_switches (p + 1);
4921 p = signed_char_spec;
4923 if (c == '%' && *p == '{')
4924 /* We have a switch spec. */
4925 validate_switches (p + 1);
4929 if (c == '%' && *p == '{')
4930 /* We have a switch spec. */
4931 validate_switches (p + 1);
4935 if (c == '%' && *p == '{')
4936 /* We have a switch spec. */
4937 validate_switches (p + 1);
4941 if (c == '%' && *p == '{')
4942 /* We have a switch spec. */
4943 validate_switches (p + 1);
4947 if (c == '%' && *p == '{')
4948 /* We have a switch spec. */
4949 validate_switches (p + 1);
4953 if (c == '%' && *p == '{')
4954 /* We have a switch spec. */
4955 validate_switches (p + 1);
4959 if (c == '%' && *p == '{')
4960 /* We have a switch spec. */
4961 validate_switches (p + 1);
4964 /* Look at the switch-name that comes after START
4965 and mark as valid all supplied switches that match it. */
4968 validate_switches (start)
4971 register char *p = start;
4986 while (*p != ':' && *p != '}') p++;
4990 else if (p[-1] == '*')
4992 /* Mark all matching switches as valid. */
4994 for (i = 0; i < n_switches; i++)
4995 if (!strncmp (switches[i].part1, filter, p - filter))
4996 switches[i].valid = 1;
5000 /* Mark an exact matching switch as valid. */
5001 for (i = 0; i < n_switches; i++)
5003 if (!strncmp (switches[i].part1, filter, p - filter)
5004 && switches[i].part1[p - filter] == 0)
5005 switches[i].valid = 1;
5010 /* Check whether a particular argument was used. */
5019 for (i = 0; i < n_switches; i++)
5020 if (! strncmp (switches[i].part1, p, len)
5021 && strlen (switches[i].part1) == len)
5026 /* Work out the subdirectory to use based on the
5027 options. The format of multilib_select is a list of elements.
5028 Each element is a subdirectory name followed by a list of options
5029 followed by a semicolon. gcc will consider each line in turn. If
5030 none of the options beginning with an exclamation point are
5031 present, and all of the other options are present, that
5032 subdirectory will be used. */
5037 char *p = multilib_select;
5039 char *this_path, *this_arg;
5044 /* Ignore newlines. */
5051 /* Get the initial path. */
5059 this_path_len = p - this_path;
5061 /* Check the arguments. */
5076 while (*p != ' ' && *p != ';')
5083 if (*this_arg == '!')
5084 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5086 failed = ! used_arg (this_arg, p - this_arg);
5094 if (this_path_len != 1
5095 || this_path[0] != '.')
5097 multilib_dir = xmalloc (this_path_len + 1);
5098 strncpy (multilib_dir, this_path, this_path_len);
5099 multilib_dir[this_path_len] = '\0';
5108 /* Print out the multiple library subdirectory selection
5109 information. This prints out a series of lines. Each line looks
5110 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5111 required. Only the desired options are printed out, the negative
5112 matches. The options are print without a leading dash. There are
5113 no spaces to make it easy to use the information in the shell.
5114 Each subdirectory is printed only once. This assumes the ordering
5115 generated by the genmultilib script. */
5118 print_multilib_info ()
5120 char *p = multilib_select;
5121 char *last_path = 0, *this_path;
5123 int last_path_len = 0;
5127 /* Ignore newlines. */
5134 /* Get the initial path. */
5143 /* If this is a duplicate, skip it. */
5144 skip = (last_path != 0 && p - this_path == last_path_len
5145 && ! strncmp (last_path, this_path, last_path_len));
5147 last_path = this_path;
5148 last_path_len = p - this_path;
5154 for (p1 = last_path; p1 < p; p1++)
5173 use_arg = *p != '!';
5178 while (*p != ' ' && *p != ';')