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 %{!A:%E}}\n }}}}}}";
726 static char *link_command_spec = "\
728 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
729 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
730 %{!A:%{!nostartfiles:%S}} %{static:}\
731 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
734 /* A vector of options to give to the linker.
735 These options are accumulated by %x,
736 and substituted into the linker command with %X. */
737 static int n_linker_options;
738 static char **linker_options;
740 /* A vector of options to give to the assembler.
741 These options are accumulated by -Wa,
742 and substituted into the assembler command with %Y. */
743 static int n_assembler_options;
744 static char **assembler_options;
746 /* A vector of options to give to the preprocessor.
747 These options are accumulated by -Wp,
748 and substituted into the preprocessor command with %Z. */
749 static int n_preprocessor_options;
750 static char **preprocessor_options;
752 /* Define how to map long options into short ones. */
754 /* This structure describes one mapping. */
757 /* The long option's name. */
759 /* The equivalent short option. */
761 /* Argument info. A string of flag chars; NULL equals no options.
762 a => argument required.
763 o => argument optional.
764 j => join argument to equivalent, making one word.
765 * => require other text after NAME as an argument. */
769 /* This is the table of mappings. Mappings are tried sequentially
770 for each option encountered; the first one that matches, wins. */
772 struct option_map option_map[] =
774 {"--all-warnings", "-Wall", 0},
775 {"--ansi", "-ansi", 0},
776 {"--assemble", "-S", 0},
777 {"--assert", "-A", "a"},
778 {"--comments", "-C", 0},
779 {"--compile", "-c", 0},
780 {"--debug", "-g", "oj"},
781 {"--define-macro", "-D", "a"},
782 {"--dependencies", "-M", 0},
783 {"--dump", "-d", "a"},
784 {"--dumpbase", "-dumpbase", "a"},
785 {"--entry", "-e", 0},
786 {"--extra-warnings", "-W", 0},
787 {"--for-assembler", "-Wa", "a"},
788 {"--for-linker", "-Xlinker", "a"},
789 {"--force-link", "-u", "a"},
790 {"--imacros", "-imacros", "a"},
791 {"--include", "-include", "a"},
792 {"--include-barrier", "-I-", 0},
793 {"--include-directory", "-I", "a"},
794 {"--include-directory-after", "-idirafter", "a"},
795 {"--include-prefix", "-iprefix", "a"},
796 {"--include-with-prefix", "-iwithprefix", "a"},
797 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
798 {"--include-with-prefix-after", "-iwithprefix", "a"},
799 {"--language", "-x", "a"},
800 {"--library-directory", "-L", "a"},
801 {"--machine", "-m", "aj"},
802 {"--machine-", "-m", "*j"},
803 {"--no-line-commands", "-P", 0},
804 {"--no-precompiled-includes", "-noprecomp", 0},
805 {"--no-standard-includes", "-nostdinc", 0},
806 {"--no-standard-libraries", "-nostdlib", 0},
807 {"--no-warnings", "-w", 0},
808 {"--optimize", "-O", "oj"},
809 {"--output", "-o", "a"},
810 {"--pedantic", "-pedantic", 0},
811 {"--pedantic-errors", "-pedantic-errors", 0},
812 {"--pipe", "-pipe", 0},
813 {"--prefix", "-B", "a"},
814 {"--preprocess", "-E", 0},
815 {"--print-search-dirs", "-print-search-dirs", 0},
816 {"--print-file-name", "-print-file-name=", "aj"},
817 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
818 {"--print-missing-file-dependencies", "-MG", 0},
819 {"--print-multi-lib", "-print-multi-lib", 0},
820 {"--print-multi-directory", "-print-multi-directory", 0},
821 {"--print-prog-name", "-print-prog-name=", "aj"},
822 {"--profile", "-p", 0},
823 {"--profile-blocks", "-a", 0},
824 {"--quiet", "-q", 0},
825 {"--save-temps", "-save-temps", 0},
826 {"--shared", "-shared", 0},
827 {"--silent", "-q", 0},
828 {"--static", "-static", 0},
829 {"--symbolic", "-symbolic", 0},
830 {"--target", "-b", "a"},
831 {"--trace-includes", "-H", 0},
832 {"--traditional", "-traditional", 0},
833 {"--traditional-cpp", "-traditional-cpp", 0},
834 {"--trigraphs", "-trigraphs", 0},
835 {"--undefine-macro", "-U", "a"},
836 {"--use-version", "-V", "a"},
837 {"--user-dependencies", "-MM", 0},
838 {"--verbose", "-v", 0},
839 {"--version", "-dumpversion", 0},
840 {"--warn-", "-W", "*j"},
841 {"--write-dependencies", "-MD", 0},
842 {"--write-user-dependencies", "-MMD", 0},
846 /* Translate the options described by *ARGCP and *ARGVP.
847 Make a new vector and store it back in *ARGVP,
848 and store its length in *ARGVC. */
851 translate_options (argcp, argvp)
857 char **argv = *argvp;
858 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
862 newv[newindex++] = argv[i++];
866 /* Translate -- options. */
867 if (argv[i][0] == '-' && argv[i][1] == '-')
869 /* Find a mapping that applies to this option. */
870 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
872 int optlen = strlen (option_map[j].name);
873 int arglen = strlen (argv[i]);
874 int complen = arglen > optlen ? optlen : arglen;
875 char *arginfo = option_map[j].arg_info;
880 if (!strncmp (argv[i], option_map[j].name, complen))
887 k < sizeof (option_map) / sizeof (option_map[0]);
889 if (strlen (option_map[k].name) >= arglen
890 && !strncmp (argv[i], option_map[k].name, arglen))
892 error ("Ambiguous abbreviation %s", argv[i]);
896 if (k != sizeof (option_map) / sizeof (option_map[0]))
902 /* If the option has an argument, accept that. */
903 if (argv[i][optlen] == '=')
904 arg = argv[i] + optlen + 1;
906 /* If this mapping requires extra text at end of name,
907 accept that as "argument". */
908 else if (index (arginfo, '*') != 0)
909 arg = argv[i] + optlen;
911 /* Otherwise, extra text at end means mismatch.
912 Try other mappings. */
917 else if (index (arginfo, '*') != 0)
919 error ("Incomplete `%s' option", option_map[j].name);
923 /* Handle arguments. */
924 if (index (arginfo, 'a') != 0)
930 error ("Missing argument to `%s' option",
938 else if (index (arginfo, '*') != 0)
940 else if (index (arginfo, 'o') == 0)
943 error ("Extraneous argument to `%s' option",
948 /* Store the translation as one argv elt or as two. */
949 if (arg != 0 && index (arginfo, 'j') != 0)
950 newv[newindex++] = concat (option_map[j].equivalent, arg);
953 newv[newindex++] = option_map[j].equivalent;
954 newv[newindex++] = arg;
957 newv[newindex++] = option_map[j].equivalent;
965 /* Handle old-fashioned options--just copy them through,
966 with their arguments. */
967 else if (argv[i][0] == '-')
969 char *p = argv[i] + 1;
973 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
974 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
975 else if (WORD_SWITCH_TAKES_ARG (p))
976 nskip += WORD_SWITCH_TAKES_ARG (p);
977 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
980 else if (! strcmp (p, "Xlinker"))
983 /* Watch out for an option at the end of the command line that
984 is missing arguments, and avoid skipping past the end of the
986 if (nskip + i > argc)
991 newv[newindex++] = argv[i++];
996 /* Ordinary operands, or +e options. */
997 newv[newindex++] = argv[i++];
1011 #ifdef HAVE_STRERROR
1016 static char buffer[30];
1020 if (e > 0 && e < sys_nerr)
1021 return sys_errlist[e];
1023 sprintf (buffer, "Unknown error %d", e);
1028 /* Read compilation specs from a file named FILENAME,
1029 replacing the default ones.
1031 A suffix which starts with `*' is a definition for
1032 one of the machine-specific sub-specs. The "suffix" should be
1033 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1034 The corresponding spec is stored in asm_spec, etc.,
1035 rather than in the `compilers' vector.
1037 Anything invalid in the file is a fatal error. */
1040 read_specs (filename)
1045 struct stat statbuf;
1050 fprintf (stderr, "Reading specs from %s\n", filename);
1052 /* Open and stat the file. */
1053 desc = open (filename, O_RDONLY, 0);
1055 pfatal_with_name (filename);
1056 if (stat (filename, &statbuf) < 0)
1057 pfatal_with_name (filename);
1059 /* Read contents of file into BUFFER. */
1060 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1061 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1063 pfatal_with_name (filename);
1064 buffer[readlen] = 0;
1067 /* Scan BUFFER for specs, putting them in the vector. */
1073 char *in, *out, *p1, *p2;
1075 /* Advance P in BUFFER to the next nonblank nocomment line. */
1076 p = skip_whitespace (p);
1080 /* Find the colon that should end the suffix. */
1082 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1083 /* The colon shouldn't be missing. */
1085 fatal ("specs file malformed after %d characters", p1 - buffer);
1086 /* Skip back over trailing whitespace. */
1088 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1089 /* Copy the suffix to a string. */
1090 suffix = save_string (p, p2 - p);
1091 /* Find the next line. */
1092 p = skip_whitespace (p1 + 1);
1094 fatal ("specs file malformed after %d characters", p - buffer);
1096 /* Find next blank line. */
1097 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1098 /* Specs end at the blank line and do not include the newline. */
1099 spec = save_string (p, p1 - p);
1102 /* Delete backslash-newline sequences from the spec. */
1107 if (in[0] == '\\' && in[1] == '\n')
1109 else if (in[0] == '#')
1111 while (*in && *in != '\n') in++;
1118 if (suffix[0] == '*')
1120 if (! strcmp (suffix, "*link_command"))
1121 link_command_spec = spec;
1123 set_spec (suffix + 1, spec);
1127 /* Add this pair to the vector. */
1129 = ((struct compiler *)
1130 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1131 compilers[n_compilers].suffix = suffix;
1132 bzero ((char *) compilers[n_compilers].spec,
1133 sizeof compilers[n_compilers].spec);
1134 compilers[n_compilers].spec[0] = spec;
1136 bzero ((char *) &compilers[n_compilers],
1137 sizeof compilers[n_compilers]);
1141 link_command_spec = spec;
1144 if (link_command_spec == 0)
1145 fatal ("spec file has no spec for linking");
1154 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1155 be considered whitespace. */
1156 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1158 else if (*p == '\n' || *p == ' ' || *p == '\t')
1162 while (*p != '\n') p++;
1172 /* Structure to keep track of the specs that have been defined so far. These
1173 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1177 char *name; /* Name of the spec. */
1178 char *spec; /* The spec itself. */
1179 struct spec_list *next; /* Next spec in linked list. */
1182 /* List of specs that have been defined so far. */
1184 static struct spec_list *specs = (struct spec_list *) 0;
1186 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1187 removed; If the spec starts with a + then SPEC is added to the end of the
1191 set_spec (name, spec)
1195 struct spec_list *sl;
1198 /* See if the spec already exists */
1199 for (sl = specs; sl; sl = sl->next)
1200 if (strcmp (sl->name, name) == 0)
1205 /* Not found - make it */
1206 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1207 sl->name = save_string (name, strlen (name));
1208 sl->spec = save_string ("", 0);
1213 old_spec = sl->spec;
1214 if (name && spec[0] == '+' && isspace (spec[1]))
1215 sl->spec = concat (old_spec, spec + 1);
1217 sl->spec = save_string (spec, strlen (spec));
1219 if (! strcmp (name, "asm"))
1220 asm_spec = sl->spec;
1221 else if (! strcmp (name, "asm_final"))
1222 asm_final_spec = sl->spec;
1223 else if (! strcmp (name, "cc1"))
1224 cc1_spec = sl->spec;
1225 else if (! strcmp (name, "cc1plus"))
1226 cc1plus_spec = sl->spec;
1227 else if (! strcmp (name, "cpp"))
1228 cpp_spec = sl->spec;
1229 else if (! strcmp (name, "endfile"))
1230 endfile_spec = sl->spec;
1231 else if (! strcmp (name, "lib"))
1232 lib_spec = sl->spec;
1233 else if (! strcmp (name, "libgcc"))
1234 libgcc_spec = sl->spec;
1235 else if (! strcmp (name, "link"))
1236 link_spec = sl->spec;
1237 else if (! strcmp (name, "predefines"))
1238 cpp_predefines = sl->spec;
1239 else if (! strcmp (name, "signed_char"))
1240 signed_char_spec = sl->spec;
1241 else if (! strcmp (name, "startfile"))
1242 startfile_spec = sl->spec;
1243 else if (! strcmp (name, "switches_need_spaces"))
1244 switches_need_spaces = sl->spec;
1245 else if (! strcmp (name, "cross_compile"))
1246 cross_compile = atoi (sl->spec);
1247 else if (! strcmp (name, "multilib"))
1248 multilib_select = sl->spec;
1249 /* Free the old spec */
1254 /* Accumulate a command (program name and args), and run it. */
1256 /* Vector of pointers to arguments in the current line of specifications. */
1258 static char **argbuf;
1260 /* Number of elements allocated in argbuf. */
1262 static int argbuf_length;
1264 /* Number of elements in argbuf currently in use (containing args). */
1266 static int argbuf_index;
1268 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1269 temp file. Used only if MKTEMP_EACH_FILE. */
1271 static struct temp_name {
1272 char *suffix; /* suffix associated with the code. */
1273 int length; /* strlen (suffix). */
1274 int unique; /* Indicates whether %g or %u/%U was used. */
1275 char *filename; /* associated filename. */
1276 int filename_length; /* strlen (filename). */
1277 struct temp_name *next;
1280 /* Number of commands executed so far. */
1282 static int execution_count;
1284 /* Number of commands that exited with a signal. */
1286 static int signal_count;
1288 /* Name with which this program was invoked. */
1290 static char *programname;
1292 /* Structures to keep track of prefixes to try when looking for files. */
1296 char *prefix; /* String to prepend to the path. */
1297 struct prefix_list *next; /* Next in linked list. */
1298 int require_machine_suffix; /* Don't use without machine_suffix. */
1299 /* 2 means try both machine_suffix and just_machine_suffix. */
1300 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1305 struct prefix_list *plist; /* List of prefixes to try */
1306 int max_len; /* Max length of a prefix in PLIST */
1307 char *name; /* Name of this list (used in config stuff) */
1310 /* List of prefixes to try when looking for executables. */
1312 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1314 /* List of prefixes to try when looking for startup (crt0) files. */
1316 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1318 /* List of prefixes to try when looking for include files. */
1320 static struct path_prefix include_prefixes = { 0, 0, "include" };
1322 /* Suffix to attach to directories searched for commands.
1323 This looks like `MACHINE/VERSION/'. */
1325 static char *machine_suffix = 0;
1327 /* Suffix to attach to directories searched for commands.
1328 This is just `MACHINE/'. */
1330 static char *just_machine_suffix = 0;
1332 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1334 static char *gcc_exec_prefix;
1336 /* Default prefixes to attach to command names. */
1338 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1339 #undef MD_EXEC_PREFIX
1340 #undef MD_STARTFILE_PREFIX
1341 #undef MD_STARTFILE_PREFIX_1
1344 #ifndef STANDARD_EXEC_PREFIX
1345 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1346 #endif /* !defined STANDARD_EXEC_PREFIX */
1348 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1349 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1350 #ifdef MD_EXEC_PREFIX
1351 static char *md_exec_prefix = MD_EXEC_PREFIX;
1354 #ifndef STANDARD_STARTFILE_PREFIX
1355 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1356 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1358 #ifdef MD_STARTFILE_PREFIX
1359 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1361 #ifdef MD_STARTFILE_PREFIX_1
1362 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1364 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1365 static char *standard_startfile_prefix_1 = "/lib/";
1366 static char *standard_startfile_prefix_2 = "/usr/lib/";
1368 #ifndef TOOLDIR_BASE_PREFIX
1369 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1371 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1372 static char *tooldir_prefix;
1374 /* Subdirectory to use for locating libraries. Set by
1375 set_multilib_dir based on the compilation options. */
1377 static char *multilib_dir;
1379 /* Clear out the vector of arguments (after a command is executed). */
1387 /* Add one argument to the vector at the end.
1388 This is done when a space is seen or at the end of the line.
1389 If DELETE_ALWAYS is nonzero, the arg is a filename
1390 and the file should be deleted eventually.
1391 If DELETE_FAILURE is nonzero, the arg is a filename
1392 and the file should be deleted if this compilation fails. */
1395 store_arg (arg, delete_always, delete_failure)
1397 int delete_always, delete_failure;
1399 if (argbuf_index + 1 == argbuf_length)
1401 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1404 argbuf[argbuf_index++] = arg;
1405 argbuf[argbuf_index] = 0;
1407 if (delete_always || delete_failure)
1408 record_temp_file (arg, delete_always, delete_failure);
1411 /* Record the names of temporary files we tell compilers to write,
1412 and delete them at the end of the run. */
1414 /* This is the common prefix we use to make temp file names.
1415 It is chosen once for each run of this program.
1416 It is substituted into a spec by %g.
1417 Thus, all temp file names contain this prefix.
1418 In practice, all temp file names start with this prefix.
1420 This prefix comes from the envvar TMPDIR if it is defined;
1421 otherwise, from the P_tmpdir macro if that is defined;
1422 otherwise, in /usr/tmp or /tmp. */
1424 static char *temp_filename;
1426 /* Length of the prefix. */
1428 static int temp_filename_length;
1430 /* Define the list of temporary files to delete. */
1435 struct temp_file *next;
1438 /* Queue of files to delete on success or failure of compilation. */
1439 static struct temp_file *always_delete_queue;
1440 /* Queue of files to delete on failure of compilation. */
1441 static struct temp_file *failure_delete_queue;
1443 /* Record FILENAME as a file to be deleted automatically.
1444 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1445 otherwise delete it in any case.
1446 FAIL_DELETE nonzero means delete it if a compilation step fails;
1447 otherwise delete it in any case. */
1450 record_temp_file (filename, always_delete, fail_delete)
1455 register char *name;
1456 name = xmalloc (strlen (filename) + 1);
1457 strcpy (name, filename);
1461 register struct temp_file *temp;
1462 for (temp = always_delete_queue; temp; temp = temp->next)
1463 if (! strcmp (name, temp->name))
1465 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1466 temp->next = always_delete_queue;
1468 always_delete_queue = temp;
1474 register struct temp_file *temp;
1475 for (temp = failure_delete_queue; temp; temp = temp->next)
1476 if (! strcmp (name, temp->name))
1478 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1479 temp->next = failure_delete_queue;
1481 failure_delete_queue = temp;
1486 /* Delete all the temporary files whose names we previously recorded. */
1489 delete_if_ordinary (name)
1496 printf ("Delete %s? (y or n) ", name);
1500 while ((c = getchar ()) != '\n' && c != EOF) ;
1501 if (i == 'y' || i == 'Y')
1503 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1504 if (unlink (name) < 0)
1506 perror_with_name (name);
1510 delete_temp_files ()
1512 register struct temp_file *temp;
1514 for (temp = always_delete_queue; temp; temp = temp->next)
1515 delete_if_ordinary (temp->name);
1516 always_delete_queue = 0;
1519 /* Delete all the files to be deleted on error. */
1522 delete_failure_queue ()
1524 register struct temp_file *temp;
1526 for (temp = failure_delete_queue; temp; temp = temp->next)
1527 delete_if_ordinary (temp->name);
1531 clear_failure_queue ()
1533 failure_delete_queue = 0;
1536 /* Compute a string to use as the base of all temporary file names.
1537 It is substituted for %g. */
1540 choose_temp_base_try (try, base)
1547 else if (try == (char *)0)
1549 else if (access (try, R_OK | W_OK) != 0)
1562 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1563 base = choose_temp_base_try (getenv ("TMP"), base);
1564 base = choose_temp_base_try (getenv ("TEMP"), base);
1567 base = choose_temp_base_try (P_tmpdir, base);
1570 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1571 dir_separator_str, "tmp"),
1573 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1575 /* If all else fails, use the current directory! */
1576 if (base == (char *)0) base = concat(".", dir_separator_str);
1578 len = strlen (base);
1579 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1581 strcpy (temp_filename, base);
1582 if (len > 0 && temp_filename[len-1] != '/'
1583 && temp_filename[len-1] != DIR_SEPARATOR)
1584 temp_filename[len++] = DIR_SEPARATOR;
1585 strcpy (temp_filename + len, "ccXXXXXX");
1587 mktemp (temp_filename);
1588 temp_filename_length = strlen (temp_filename);
1589 if (temp_filename_length == 0)
1594 /* Routine to add variables to the environment. We do this to pass
1595 the pathname of the gcc driver, and the directories search to the
1596 collect2 program, which is being run as ld. This way, we can be
1597 sure of executing the right compiler when collect2 wants to build
1598 constructors and destructors. Since the environment variables we
1599 use come from an obstack, we don't have to worry about allocating
1608 #ifndef VMS /* nor about VMS */
1610 extern char **environ;
1611 char **old_environ = environ;
1615 int str_len = strlen (str);
1619 while ((ch = *p++) != '\0' && ch != '=')
1625 /* Search for replacing an existing environment variable, and
1626 count the number of total environment variables. */
1627 for (envp = old_environ; *envp; envp++)
1630 if (!strncmp (str, *envp, name_len))
1637 /* Add a new environment variable */
1638 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1640 bcopy ((char *) old_environ, (char *) (environ + 1),
1641 sizeof (char *) * (num_envs+1));
1646 #endif /* HAVE_PUTENV */
1649 /* Build a list of search directories from PATHS.
1650 PREFIX is a string to prepend to the list.
1651 If CHECK_DIR_P is non-zero we ensure the directory exists.
1652 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1653 It is also used by the --print-search-dirs flag. */
1656 build_search_list (paths, prefix, check_dir_p)
1657 struct path_prefix *paths;
1661 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1663 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1664 int first_time = TRUE;
1665 struct prefix_list *pprefix;
1667 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1669 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1671 int len = strlen (pprefix->prefix);
1675 || is_directory (pprefix->prefix, machine_suffix, 0)))
1678 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1681 obstack_grow (&collect_obstack, pprefix->prefix, len);
1682 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1685 if (just_machine_suffix
1686 && pprefix->require_machine_suffix == 2
1688 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1691 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1694 obstack_grow (&collect_obstack, pprefix->prefix, len);
1695 obstack_grow (&collect_obstack, just_machine_suffix,
1699 if (!pprefix->require_machine_suffix)
1702 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1705 obstack_grow (&collect_obstack, pprefix->prefix, len);
1708 obstack_1grow (&collect_obstack, '\0');
1709 return obstack_finish (&collect_obstack);
1712 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1715 putenv_from_prefixes (paths, env_var)
1716 struct path_prefix *paths;
1719 putenv (build_search_list (paths, env_var, 1));
1722 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1723 access to check permissions.
1724 Return 0 if not found, otherwise return its name, allocated with malloc. */
1727 find_a_file (pprefix, name, mode)
1728 struct path_prefix *pprefix;
1733 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1734 struct prefix_list *pl;
1735 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1738 len += strlen (machine_suffix);
1740 temp = xmalloc (len);
1742 /* Determine the filename to execute (special case for absolute paths). */
1744 if (*name == '/' || *name == DIR_SEPARATOR)
1746 if (access (name, mode))
1748 strcpy (temp, name);
1753 for (pl = pprefix->plist; pl; pl = pl->next)
1757 /* Some systems have a suffix for executable files.
1758 So try appending that first. */
1759 if (file_suffix[0] != 0)
1761 strcpy (temp, pl->prefix);
1762 strcat (temp, machine_suffix);
1763 strcat (temp, name);
1764 strcat (temp, file_suffix);
1765 if (access (temp, mode) == 0)
1767 if (pl->used_flag_ptr != 0)
1768 *pl->used_flag_ptr = 1;
1773 /* Now try just the name. */
1774 strcpy (temp, pl->prefix);
1775 strcat (temp, machine_suffix);
1776 strcat (temp, name);
1777 if (access (temp, mode) == 0)
1779 if (pl->used_flag_ptr != 0)
1780 *pl->used_flag_ptr = 1;
1785 /* Certain prefixes are tried with just the machine type,
1786 not the version. This is used for finding as, ld, etc. */
1787 if (just_machine_suffix && pl->require_machine_suffix == 2)
1789 /* Some systems have a suffix for executable files.
1790 So try appending that first. */
1791 if (file_suffix[0] != 0)
1793 strcpy (temp, pl->prefix);
1794 strcat (temp, just_machine_suffix);
1795 strcat (temp, name);
1796 strcat (temp, file_suffix);
1797 if (access (temp, mode) == 0)
1799 if (pl->used_flag_ptr != 0)
1800 *pl->used_flag_ptr = 1;
1805 strcpy (temp, pl->prefix);
1806 strcat (temp, just_machine_suffix);
1807 strcat (temp, name);
1808 if (access (temp, mode) == 0)
1810 if (pl->used_flag_ptr != 0)
1811 *pl->used_flag_ptr = 1;
1816 /* Certain prefixes can't be used without the machine suffix
1817 when the machine or version is explicitly specified. */
1818 if (!pl->require_machine_suffix)
1820 /* Some systems have a suffix for executable files.
1821 So try appending that first. */
1822 if (file_suffix[0] != 0)
1824 strcpy (temp, pl->prefix);
1825 strcat (temp, name);
1826 strcat (temp, file_suffix);
1827 if (access (temp, mode) == 0)
1829 if (pl->used_flag_ptr != 0)
1830 *pl->used_flag_ptr = 1;
1835 strcpy (temp, pl->prefix);
1836 strcat (temp, name);
1837 if (access (temp, mode) == 0)
1839 if (pl->used_flag_ptr != 0)
1840 *pl->used_flag_ptr = 1;
1850 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1851 at the start of the list, otherwise it goes at the end.
1853 If WARN is nonzero, we will warn if no file is found
1854 through this prefix. WARN should point to an int
1855 which will be set to 1 if this entry is used.
1857 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1858 the complete value of machine_suffix.
1859 2 means try both machine_suffix and just_machine_suffix. */
1862 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1863 struct path_prefix *pprefix;
1866 int require_machine_suffix;
1869 struct prefix_list *pl, **prev;
1872 if (!first && pprefix->plist)
1874 for (pl = pprefix->plist; pl->next; pl = pl->next)
1879 prev = &pprefix->plist;
1881 /* Keep track of the longest prefix */
1883 len = strlen (prefix);
1884 if (len > pprefix->max_len)
1885 pprefix->max_len = len;
1887 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1888 pl->prefix = save_string (prefix, len);
1889 pl->require_machine_suffix = require_machine_suffix;
1890 pl->used_flag_ptr = warn;
1897 pl->next = (struct prefix_list *) 0;
1901 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1904 unused_prefix_warnings (pprefix)
1905 struct path_prefix *pprefix;
1907 struct prefix_list *pl = pprefix->plist;
1911 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1913 error ("file path prefix `%s' never used",
1915 /* Prevent duplicate warnings. */
1916 *pl->used_flag_ptr = 1;
1922 /* Get rid of all prefixes built up so far in *PLISTP. */
1925 free_path_prefix (pprefix)
1926 struct path_prefix *pprefix;
1928 struct prefix_list *pl = pprefix->plist;
1929 struct prefix_list *temp;
1935 free (temp->prefix);
1936 free ((char *) temp);
1938 pprefix->plist = (struct prefix_list *) 0;
1941 /* stdin file number. */
1942 #define STDIN_FILE_NO 0
1944 /* stdout file number. */
1945 #define STDOUT_FILE_NO 1
1947 /* value of `pipe': port index for reading. */
1950 /* value of `pipe': port index for writing. */
1951 #define WRITE_PORT 1
1953 /* Pipe waiting from last process, to be used as input for the next one.
1954 Value is STDIN_FILE_NO if no pipe is waiting
1955 (i.e. the next command is the first of a group). */
1957 static int last_pipe_input;
1959 /* Fork one piped subcommand. FUNC is the system call to use
1960 (either execv or execvp). ARGV is the arg vector to use.
1961 NOT_LAST is nonzero if this is not the last subcommand
1962 (i.e. its output should be piped to the next one.) */
1966 #include <process.h>
1968 pexecute (search_flag, program, argv, not_last)
1975 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1979 int i, el = search_flag ? 0 : 4;
1981 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1982 rf = scmd + strlen(program) + 2 + el;
1983 sprintf (scmd, "%s%s @%s.gp", program,
1984 (search_flag ? "" : ".exe"), temp_filename);
1985 argfile = fopen (rf, "w");
1987 pfatal_with_name (rf);
1989 for (i=1; argv[i]; i++)
1992 for (cp = argv[i]; *cp; cp++)
1994 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1995 fputc ('\\', argfile);
1996 fputc (*cp, argfile);
1998 fputc ('\n', argfile);
2009 perror_exec (program);
2010 return MIN_FATAL_STATUS << 8;
2017 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2020 pexecute (search_flag, program, argv, not_last)
2026 int (*func)() = (search_flag ? execv : execvp);
2029 int input_desc = last_pipe_input;
2030 int output_desc = STDOUT_FILE_NO;
2031 int retries, sleep_interval;
2033 /* If this isn't the last process, make a pipe for its output,
2034 and record it as waiting to be the input to the next process. */
2038 if (pipe (pdes) < 0)
2039 pfatal_with_name ("pipe");
2040 output_desc = pdes[WRITE_PORT];
2041 last_pipe_input = pdes[READ_PORT];
2044 last_pipe_input = STDIN_FILE_NO;
2046 /* Fork a subprocess; wait and retry if it fails. */
2048 for (retries = 0; retries < 4; retries++)
2053 sleep (sleep_interval);
2054 sleep_interval *= 2;
2061 pfatal_with_name ("fork");
2063 pfatal_with_name ("vfork");
2069 /* Move the input and output pipes into place, if nec. */
2070 if (input_desc != STDIN_FILE_NO)
2072 close (STDIN_FILE_NO);
2076 if (output_desc != STDOUT_FILE_NO)
2078 close (STDOUT_FILE_NO);
2080 close (output_desc);
2083 /* Close the parent's descs that aren't wanted here. */
2084 if (last_pipe_input != STDIN_FILE_NO)
2085 close (last_pipe_input);
2087 /* Exec the program. */
2088 (*func) (program, argv);
2089 perror_exec (program);
2095 /* In the parent, after forking.
2096 Close the descriptors that we made for this child. */
2097 if (input_desc != STDIN_FILE_NO)
2099 if (output_desc != STDOUT_FILE_NO)
2100 close (output_desc);
2102 /* Return child's process number. */
2107 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2109 #if defined(OS2) || defined(_WIN32)
2113 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2114 to remove the outermost set of double quotes from all arguments. */
2122 for (i = 1; argvec[i] != 0; i++)
2125 char *temp, *newtemp;
2128 len = strlen (temp);
2129 for (j = 0; j < len; j++)
2133 newtemp = xmalloc (len + 2);
2134 strncpy (newtemp, temp, j);
2136 strncpy (&newtemp [j+1], &temp [j], len-j);
2137 newtemp [len+1] = 0;
2147 return (const char* const*) argvec;
2150 #define FIX_ARGV(a) fix_argv(a)
2154 #define FIX_ARGV(a) a
2159 pexecute (search_flag, program, argv, not_last)
2165 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2167 #endif /* OS2 or _WIN32 */
2170 /* Execute the command specified by the arguments on the current line of spec.
2171 When using pipes, this includes several piped-together commands
2172 with `|' between them.
2174 Return 0 if successful, -1 if failed. */
2180 int n_commands; /* # of command. */
2184 char *prog; /* program name. */
2185 char **argv; /* vector of args. */
2186 int pid; /* pid of process for this command. */
2189 struct command *commands; /* each command buffer with above info. */
2191 /* Count # of piped commands. */
2192 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2193 if (strcmp (argbuf[i], "|") == 0)
2196 /* Get storage for each command. */
2198 = (struct command *) alloca (n_commands * sizeof (struct command));
2200 /* Split argbuf into its separate piped processes,
2201 and record info about each one.
2202 Also search for the programs that are to be run. */
2204 commands[0].prog = argbuf[0]; /* first command. */
2205 commands[0].argv = &argbuf[0];
2206 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2208 commands[0].argv[0] = string;
2210 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2211 if (strcmp (argbuf[i], "|") == 0)
2212 { /* each command. */
2214 fatal ("-pipe not supported under MS-DOS");
2216 argbuf[i] = 0; /* termination of command args. */
2217 commands[n_commands].prog = argbuf[i + 1];
2218 commands[n_commands].argv = &argbuf[i + 1];
2219 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2221 commands[n_commands].argv[0] = string;
2225 argbuf[argbuf_index] = 0;
2227 /* If -v, print what we are about to do, and maybe query. */
2231 /* Print each piped command as a separate line. */
2232 for (i = 0; i < n_commands ; i++)
2236 for (j = commands[i].argv; *j; j++)
2237 fprintf (stderr, " %s", *j);
2239 /* Print a pipe symbol after all but the last command. */
2240 if (i + 1 != n_commands)
2241 fprintf (stderr, " |");
2242 fprintf (stderr, "\n");
2246 fprintf (stderr, "\nGo ahead? (y or n) ");
2250 while (getchar () != '\n') ;
2251 if (i != 'y' && i != 'Y')
2256 /* Run each piped subprocess. */
2258 last_pipe_input = STDIN_FILE_NO;
2259 for (i = 0; i < n_commands; i++)
2261 char *string = commands[i].argv[0];
2263 commands[i].pid = pexecute (string != commands[i].prog,
2264 string, commands[i].argv,
2265 i + 1 < n_commands);
2267 if (string != commands[i].prog)
2273 /* Wait for all the subprocesses to finish.
2274 We don't care what order they finish in;
2275 we know that N_COMMANDS waits will get them all.
2276 Ignore subprocesses that we don't know about,
2277 since they can be spawned by the process that exec'ed us. */
2282 for (i = 0; i < n_commands; )
2289 status = pid = commands[i].pid;
2292 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2294 pid = wait (&status);
2300 for (j = 0; j < n_commands; j++)
2301 if (commands[j].pid == pid)
2306 if (WIFSIGNALED (status))
2308 fatal ("Internal compiler error: program %s got fatal signal %d",
2309 commands[j].prog, WTERMSIG (status));
2313 else if (WIFEXITED (status)
2314 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2324 /* Find all the switches given to us
2325 and make a vector describing them.
2326 The elements of the vector are strings, one per switch given.
2327 If a switch uses following arguments, then the `part1' field
2328 is the switch itself and the `args' field
2329 is a null-terminated vector containing the following arguments.
2330 The `live_cond' field is 1 if the switch is true in a conditional spec,
2331 -1 if false (overridden by a later switch), and is initialized to zero.
2332 The `valid' field is nonzero if any spec has looked at this switch;
2333 if it remains zero at the end of the run, it must be meaningless. */
2343 static struct switchstr *switches;
2345 static int n_switches;
2353 /* Also a vector of input files specified. */
2355 static struct infile *infiles;
2357 static int n_infiles;
2359 /* And a vector of corresponding output files is made up later. */
2361 static char **outfiles;
2363 /* Create the vector `switches' and its contents.
2364 Store its length in `n_switches'. */
2367 process_command (argc, argv)
2373 char *spec_lang = 0;
2374 int last_language_n_infiles;
2376 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2381 /* Figure compiler version from version string. */
2383 compiler_version = save_string (version_string, strlen (version_string));
2384 for (temp = compiler_version; *temp; ++temp)
2393 /* Set up the default search paths. */
2395 if (gcc_exec_prefix)
2397 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2398 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2401 /* COMPILER_PATH and LIBRARY_PATH have values
2402 that are lists of directory names with colons. */
2404 temp = getenv ("COMPILER_PATH");
2407 char *startp, *endp;
2408 char *nstore = (char *) alloca (strlen (temp) + 3);
2410 startp = endp = temp;
2413 if (*endp == PATH_SEPARATOR || *endp == 0)
2415 strncpy (nstore, startp, endp-startp);
2417 strcpy (nstore, concat (".", dir_separator_str));
2418 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2420 nstore[endp-startp] = DIR_SEPARATOR;
2421 nstore[endp-startp+1] = 0;
2424 nstore[endp-startp] = 0;
2425 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2428 endp = startp = endp + 1;
2435 temp = getenv ("LIBRARY_PATH");
2436 if (temp && ! cross_compile)
2438 char *startp, *endp;
2439 char *nstore = (char *) alloca (strlen (temp) + 3);
2441 startp = endp = temp;
2444 if (*endp == PATH_SEPARATOR || *endp == 0)
2446 strncpy (nstore, startp, endp-startp);
2448 strcpy (nstore, concat (".", dir_separator_str));
2449 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2451 nstore[endp-startp] = DIR_SEPARATOR;
2452 nstore[endp-startp+1] = 0;
2455 nstore[endp-startp] = 0;
2456 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2459 endp = startp = endp + 1;
2466 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2467 temp = getenv ("LPATH");
2468 if (temp && ! cross_compile)
2470 char *startp, *endp;
2471 char *nstore = (char *) alloca (strlen (temp) + 3);
2473 startp = endp = temp;
2476 if (*endp == PATH_SEPARATOR || *endp == 0)
2478 strncpy (nstore, startp, endp-startp);
2480 strcpy (nstore, concat (".", dir_separator_str));
2481 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2483 nstore[endp-startp] = DIR_SEPARATOR;
2484 nstore[endp-startp+1] = 0;
2487 nstore[endp-startp] = 0;
2488 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2491 endp = startp = endp + 1;
2498 /* Convert new-style -- options to old-style. */
2499 translate_options (&argc, &argv);
2501 /* Scan argv twice. Here, the first time, just count how many switches
2502 there will be in their vector, and how many input files in theirs.
2503 Here we also parse the switches that cc itself uses (e.g. -v). */
2505 for (i = 1; i < argc; i++)
2507 if (! strcmp (argv[i], "-dumpspecs"))
2509 printf ("*asm:\n%s\n\n", asm_spec);
2510 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2511 printf ("*cpp:\n%s\n\n", cpp_spec);
2512 printf ("*cc1:\n%s\n\n", cc1_spec);
2513 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2514 printf ("*endfile:\n%s\n\n", endfile_spec);
2515 printf ("*link:\n%s\n\n", link_spec);
2516 printf ("*lib:\n%s\n\n", lib_spec);
2517 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2518 printf ("*startfile:\n%s\n\n", startfile_spec);
2519 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2520 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2521 printf ("*predefines:\n%s\n\n", cpp_predefines);
2522 printf ("*cross_compile:\n%d\n\n", cross_compile);
2523 printf ("*multilib:\n%s\n\n", multilib_select);
2527 else if (! strcmp (argv[i], "-dumpversion"))
2529 printf ("%s\n", version_string);
2532 else if (! strcmp (argv[i], "-dumpmachine"))
2534 printf ("%s\n", spec_machine);
2537 else if (! strcmp (argv[i], "-print-search-dirs"))
2538 print_search_dirs = 1;
2539 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2540 print_file_name = "libgcc.a";
2541 else if (! strncmp (argv[i], "-print-file-name=", 17))
2542 print_file_name = argv[i] + 17;
2543 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2544 print_prog_name = argv[i] + 17;
2545 else if (! strcmp (argv[i], "-print-multi-lib"))
2546 print_multi_lib = 1;
2547 else if (! strcmp (argv[i], "-print-multi-directory"))
2548 print_multi_directory = 1;
2549 else if (! strncmp (argv[i], "-Wa,", 4))
2552 /* Pass the rest of this option to the assembler. */
2554 n_assembler_options++;
2555 if (!assembler_options)
2557 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2560 = (char **) xrealloc (assembler_options,
2561 n_assembler_options * sizeof (char **));
2563 /* Split the argument at commas. */
2565 for (j = 4; argv[i][j]; j++)
2566 if (argv[i][j] == ',')
2568 assembler_options[n_assembler_options - 1]
2569 = save_string (argv[i] + prev, j - prev);
2570 n_assembler_options++;
2572 = (char **) xrealloc (assembler_options,
2573 n_assembler_options * sizeof (char **));
2576 /* Record the part after the last comma. */
2577 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2579 else if (! strncmp (argv[i], "-Wp,", 4))
2582 /* Pass the rest of this option to the preprocessor. */
2584 n_preprocessor_options++;
2585 if (!preprocessor_options)
2586 preprocessor_options
2587 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2589 preprocessor_options
2590 = (char **) xrealloc (preprocessor_options,
2591 n_preprocessor_options * sizeof (char **));
2593 /* Split the argument at commas. */
2595 for (j = 4; argv[i][j]; j++)
2596 if (argv[i][j] == ',')
2598 preprocessor_options[n_preprocessor_options - 1]
2599 = save_string (argv[i] + prev, j - prev);
2600 n_preprocessor_options++;
2601 preprocessor_options
2602 = (char **) xrealloc (preprocessor_options,
2603 n_preprocessor_options * sizeof (char **));
2606 /* Record the part after the last comma. */
2607 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2609 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2610 /* The +e options to the C++ front-end. */
2612 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2615 /* Split the argument at commas. */
2616 for (j = 3; argv[i][j]; j++)
2617 n_infiles += (argv[i][j] == ',');
2619 else if (strcmp (argv[i], "-Xlinker") == 0)
2622 fatal ("argument to `-Xlinker' is missing");
2627 else if (strncmp (argv[i], "-l", 2) == 0)
2629 else if (argv[i][0] == '-' && argv[i][1] != 0)
2631 register char *p = &argv[i][1];
2632 register int c = *p;
2637 if (p[1] == 0 && i + 1 == argc)
2638 fatal ("argument to `-b' is missing");
2640 spec_machine = argv[++i];
2642 spec_machine = p + 1;
2647 int *temp = (int *) xmalloc (sizeof (int));
2649 if (p[1] == 0 && i + 1 == argc)
2650 fatal ("argument to `-B' is missing");
2655 add_prefix (&exec_prefixes, value, 1, 0, temp);
2656 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2657 add_prefix (&include_prefixes, concat (value, "include"),
2660 /* As a kludge, if the arg is "[foo/]stageN/", just add
2661 "[foo/]include" to the include prefix. */
2663 int len = strlen (value);
2666 && (value[len - 8] == '/'
2667 || value[len - 8] == DIR_SEPARATOR)))
2668 && strncmp (value + len - 7, "stage", 5) == 0
2669 && isdigit (value[len - 2])
2670 && (value[len - 1] == '/'
2671 || value[len - 1] == DIR_SEPARATOR))
2674 add_prefix (&include_prefixes, "include", 1, 0, 0);
2677 char *string = xmalloc (len + 1);
2678 strncpy (string, value, len-7);
2679 strcat (string, "include");
2680 add_prefix (&include_prefixes, string, 1, 0, 0);
2687 case 'v': /* Print our subcommands and print versions. */
2689 /* If they do anything other than exactly `-v', don't set
2690 verbose_flag; rather, continue on to give the error. */
2697 if (p[1] == 0 && i + 1 == argc)
2698 fatal ("argument to `-V' is missing");
2700 spec_version = argv[++i];
2702 spec_version = p + 1;
2703 compiler_version = spec_version;
2707 if (!strcmp (p, "save-temps"))
2709 save_temps_flag = 1;
2716 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2717 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2718 else if (WORD_SWITCH_TAKES_ARG (p))
2719 i += WORD_SWITCH_TAKES_ARG (p);
2726 /* Set up the search paths before we go looking for config files. */
2728 /* These come before the md prefixes so that we will find gcc's subcommands
2729 (such as cpp) rather than those of the host system. */
2730 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2731 as well as trying the machine and the version. */
2733 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2734 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2737 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2738 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2740 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2743 /* If tooldir is relative, base it on exec_prefixes. A relative
2744 tooldir lets us move the installed tree as a unit.
2746 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2747 directories, so that we can search both the user specified directory
2748 and the standard place. */
2750 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2752 if (gcc_exec_prefix)
2754 char *gcc_exec_tooldir_prefix
2755 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2756 spec_version, dir_separator_str, tooldir_prefix);
2758 add_prefix (&exec_prefixes,
2759 concat3 (gcc_exec_tooldir_prefix, "bin",
2762 add_prefix (&startfile_prefixes,
2763 concat3 (gcc_exec_tooldir_prefix, "lib",
2768 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2769 dir_separator_str, spec_version,
2770 dir_separator_str, tooldir_prefix);
2773 add_prefix (&exec_prefixes,
2774 concat3 (tooldir_prefix, "bin", dir_separator_str),
2776 add_prefix (&startfile_prefixes,
2777 concat3 (tooldir_prefix, "lib", dir_separator_str),
2780 /* More prefixes are enabled in main, after we read the specs file
2781 and determine whether this is cross-compilation or not. */
2784 /* Then create the space for the vectors and scan again. */
2786 switches = ((struct switchstr *)
2787 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2788 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2791 last_language_n_infiles = -1;
2793 /* This, time, copy the text of each switch and store a pointer
2794 to the copy in the vector of switches.
2795 Store all the infiles in their vector. */
2797 for (i = 1; i < argc; i++)
2799 /* Just skip the switches that were handled by the preceding loop. */
2800 if (! strncmp (argv[i], "-Wa,", 4))
2802 else if (! strncmp (argv[i], "-Wp,", 4))
2804 else if (! strcmp (argv[i], "-print-search-dirs"))
2806 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2808 else if (! strncmp (argv[i], "-print-file-name=", 17))
2810 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2812 else if (! strcmp (argv[i], "-print-multi-lib"))
2814 else if (! strcmp (argv[i], "-print-multi-directory"))
2816 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2818 /* Compensate for the +e options to the C++ front-end;
2819 they're there simply for cfront call-compatibility. We do
2820 some magic in default_compilers to pass them down properly.
2821 Note we deliberately start at the `+' here, to avoid passing
2822 -e0 or -e1 down into the linker. */
2823 switches[n_switches].part1 = &argv[i][0];
2824 switches[n_switches].args = 0;
2825 switches[n_switches].live_cond = 0;
2826 switches[n_switches].valid = 0;
2829 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2832 /* Split the argument at commas. */
2834 for (j = 4; argv[i][j]; j++)
2835 if (argv[i][j] == ',')
2837 infiles[n_infiles].language = 0;
2838 infiles[n_infiles++].name
2839 = save_string (argv[i] + prev, j - prev);
2842 /* Record the part after the last comma. */
2843 infiles[n_infiles].language = 0;
2844 infiles[n_infiles++].name = argv[i] + prev;
2846 else if (strcmp (argv[i], "-Xlinker") == 0)
2848 infiles[n_infiles].language = 0;
2849 infiles[n_infiles++].name = argv[++i];
2851 else if (strncmp (argv[i], "-l", 2) == 0)
2853 infiles[n_infiles].language = 0;
2854 infiles[n_infiles++].name = argv[i];
2856 else if (argv[i][0] == '-' && argv[i][1] != 0)
2858 register char *p = &argv[i][1];
2859 register int c = *p;
2861 if (c == 'B' || c == 'b' || c == 'V')
2863 /* Skip a separate arg, if any. */
2870 if (p[1] == 0 && i + 1 == argc)
2871 fatal ("argument to `-x' is missing");
2873 spec_lang = argv[++i];
2876 if (! strcmp (spec_lang, "none"))
2877 /* Suppress the warning if -xnone comes after the last input
2878 file, because alternate command interfaces like g++ might
2879 find it useful to place -xnone after each input file. */
2882 last_language_n_infiles = n_infiles;
2885 switches[n_switches].part1 = p;
2886 /* Deal with option arguments in separate argv elements. */
2887 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2888 || WORD_SWITCH_TAKES_ARG (p))
2891 int n_args = WORD_SWITCH_TAKES_ARG (p);
2895 /* Count only the option arguments in separate argv elements. */
2896 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2898 if (i + n_args >= argc)
2899 fatal ("argument to `-%s' is missing", p);
2900 switches[n_switches].args
2901 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2903 switches[n_switches].args[j++] = argv[++i];
2904 /* Null-terminate the vector. */
2905 switches[n_switches].args[j] = 0;
2907 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2909 /* On some systems, ld cannot handle -o or -L without space.
2910 So split the -o or -L from its argument. */
2911 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2912 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2913 switches[n_switches].args[0] = xmalloc (strlen (p));
2914 strcpy (switches[n_switches].args[0], &p[1]);
2915 switches[n_switches].args[1] = 0;
2918 switches[n_switches].args = 0;
2920 switches[n_switches].live_cond = 0;
2921 switches[n_switches].valid = 0;
2922 /* This is always valid, since gcc.c itself understands it. */
2923 if (!strcmp (p, "save-temps"))
2924 switches[n_switches].valid = 1;
2929 #ifdef HAVE_OBJECT_SUFFIX
2930 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2931 if (strlen (argv[i]) > 2
2932 && argv[i][strlen (argv[i]) - 2] == '.'
2933 && argv[i][strlen (argv[i]) - 1] == 'o')
2937 for (j = 0; j < strlen (argv[i]) - 2; j++)
2938 obstack_1grow (&obstack, argv[i][j]);
2940 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2941 obstack_1grow (&obstack, 0);
2942 argv[i] = obstack_finish (&obstack);
2946 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2948 perror_with_name (argv[i]);
2953 infiles[n_infiles].language = spec_lang;
2954 infiles[n_infiles++].name = argv[i];
2959 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2960 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2962 switches[n_switches].part1 = 0;
2963 infiles[n_infiles].name = 0;
2966 /* Process a spec string, accumulating and running commands. */
2968 /* These variables describe the input file name.
2969 input_file_number is the index on outfiles of this file,
2970 so that the output file name can be stored for later use by %o.
2971 input_basename is the start of the part of the input file
2972 sans all directory names, and basename_length is the number
2973 of characters starting there excluding the suffix .c or whatever. */
2975 static char *input_filename;
2976 static int input_file_number;
2977 static int input_filename_length;
2978 static int basename_length;
2979 static char *input_basename;
2980 static char *input_suffix;
2982 /* These are variables used within do_spec and do_spec_1. */
2984 /* Nonzero if an arg has been started and not yet terminated
2985 (with space, tab or newline). */
2986 static int arg_going;
2988 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2989 is a temporary file name. */
2990 static int delete_this_arg;
2992 /* Nonzero means %w has been seen; the next arg to be terminated
2993 is the output file name of this compilation. */
2994 static int this_is_output_file;
2996 /* Nonzero means %s has been seen; the next arg to be terminated
2997 is the name of a library file and we should try the standard
2998 search dirs for it. */
2999 static int this_is_library_file;
3001 /* Nonzero means that the input of this command is coming from a pipe. */
3002 static int input_from_pipe;
3004 /* Process the spec SPEC and run the commands specified therein.
3005 Returns 0 if the spec is successfully processed; -1 if failed. */
3015 delete_this_arg = 0;
3016 this_is_output_file = 0;
3017 this_is_library_file = 0;
3018 input_from_pipe = 0;
3020 value = do_spec_1 (spec, 0, NULL_PTR);
3022 /* Force out any unfinished command.
3023 If -pipe, this forces out the last command if it ended in `|'. */
3026 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3029 if (argbuf_index > 0)
3036 /* Process the sub-spec SPEC as a portion of a larger spec.
3037 This is like processing a whole spec except that we do
3038 not initialize at the beginning and we do not supply a
3039 newline by default at the end.
3040 INSWITCH nonzero means don't process %-sequences in SPEC;
3041 in this case, % is treated as an ordinary character.
3042 This is used while substituting switches.
3043 INSWITCH nonzero also causes SPC not to terminate an argument.
3045 Value is zero unless a line was finished
3046 and the command on that line reported an error. */
3049 do_spec_1 (spec, inswitch, soft_matched_part)
3052 char *soft_matched_part;
3054 register char *p = spec;
3061 /* If substituting a switch, treat all chars like letters.
3062 Otherwise, NL, SPC, TAB and % are special. */
3063 switch (inswitch ? 'a' : c)
3066 /* End of line: finish any pending argument,
3067 then run the pending command if one has been started. */
3070 obstack_1grow (&obstack, 0);
3071 string = obstack_finish (&obstack);
3072 if (this_is_library_file)
3073 string = find_file (string);
3074 store_arg (string, delete_this_arg, this_is_output_file);
3075 if (this_is_output_file)
3076 outfiles[input_file_number] = string;
3080 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3082 for (i = 0; i < n_switches; i++)
3083 if (!strcmp (switches[i].part1, "pipe"))
3086 /* A `|' before the newline means use a pipe here,
3087 but only if -pipe was specified.
3088 Otherwise, execute now and don't pass the `|' as an arg. */
3091 input_from_pipe = 1;
3092 switches[i].valid = 1;
3099 if (argbuf_index > 0)
3105 /* Reinitialize for a new command, and for a new argument. */
3108 delete_this_arg = 0;
3109 this_is_output_file = 0;
3110 this_is_library_file = 0;
3111 input_from_pipe = 0;
3115 /* End any pending argument. */
3118 obstack_1grow (&obstack, 0);
3119 string = obstack_finish (&obstack);
3120 if (this_is_library_file)
3121 string = find_file (string);
3122 store_arg (string, delete_this_arg, this_is_output_file);
3123 if (this_is_output_file)
3124 outfiles[input_file_number] = string;
3128 obstack_1grow (&obstack, c);
3134 /* Space or tab ends an argument if one is pending. */
3137 obstack_1grow (&obstack, 0);
3138 string = obstack_finish (&obstack);
3139 if (this_is_library_file)
3140 string = find_file (string);
3141 store_arg (string, delete_this_arg, this_is_output_file);
3142 if (this_is_output_file)
3143 outfiles[input_file_number] = string;
3145 /* Reinitialize for a new argument. */
3147 delete_this_arg = 0;
3148 this_is_output_file = 0;
3149 this_is_library_file = 0;
3156 fatal ("Invalid specification! Bug in cc.");
3159 obstack_grow (&obstack, input_basename, basename_length);
3164 delete_this_arg = 2;
3167 /* Dump out the directories specified with LIBRARY_PATH,
3168 followed by the absolute directories
3169 that we search for startfiles. */
3172 struct prefix_list *pl = startfile_prefixes.plist;
3174 char *buffer = (char *) xmalloc (bufsize);
3177 for (; pl; pl = pl->next)
3179 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3180 /* Used on systems which record the specified -L dirs
3181 and use them to search for dynamic linking. */
3182 /* Relative directories always come from -B,
3183 and it is better not to use them for searching
3184 at run time. In particular, stage1 loses */
3185 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3188 /* Try subdirectory if there is one. */
3189 if (multilib_dir != NULL)
3193 if (strlen (pl->prefix) + strlen (machine_suffix)
3195 bufsize = (strlen (pl->prefix)
3196 + strlen (machine_suffix)) * 2 + 1;
3197 buffer = (char *) xrealloc (buffer, bufsize);
3198 strcpy (buffer, pl->prefix);
3199 strcat (buffer, machine_suffix);
3200 if (is_directory (buffer, multilib_dir, 1))
3202 do_spec_1 ("-L", 0, NULL_PTR);
3203 #ifdef SPACE_AFTER_L_OPTION
3204 do_spec_1 (" ", 0, NULL_PTR);
3206 do_spec_1 (buffer, 1, NULL_PTR);
3207 do_spec_1 (multilib_dir, 1, NULL_PTR);
3208 /* Make this a separate argument. */
3209 do_spec_1 (" ", 0, NULL_PTR);
3212 if (!pl->require_machine_suffix)
3214 if (is_directory (pl->prefix, multilib_dir, 1))
3216 do_spec_1 ("-L", 0, NULL_PTR);
3217 #ifdef SPACE_AFTER_L_OPTION
3218 do_spec_1 (" ", 0, NULL_PTR);
3220 do_spec_1 (pl->prefix, 1, NULL_PTR);
3221 do_spec_1 (multilib_dir, 1, NULL_PTR);
3222 /* Make this a separate argument. */
3223 do_spec_1 (" ", 0, NULL_PTR);
3229 if (is_directory (pl->prefix, machine_suffix, 1))
3231 do_spec_1 ("-L", 0, NULL_PTR);
3232 #ifdef SPACE_AFTER_L_OPTION
3233 do_spec_1 (" ", 0, NULL_PTR);
3235 do_spec_1 (pl->prefix, 1, NULL_PTR);
3236 /* Remove slash from machine_suffix. */
3237 if (strlen (machine_suffix) >= bufsize)
3238 bufsize = strlen (machine_suffix) * 2 + 1;
3239 buffer = (char *) xrealloc (buffer, bufsize);
3240 strcpy (buffer, machine_suffix);
3241 idx = strlen (buffer);
3242 if (buffer[idx - 1] == '/'
3243 || buffer[idx - 1] == DIR_SEPARATOR)
3244 buffer[idx - 1] = 0;
3245 do_spec_1 (buffer, 1, NULL_PTR);
3246 /* Make this a separate argument. */
3247 do_spec_1 (" ", 0, NULL_PTR);
3250 if (!pl->require_machine_suffix)
3252 if (is_directory (pl->prefix, "", 1))
3254 do_spec_1 ("-L", 0, NULL_PTR);
3255 #ifdef SPACE_AFTER_L_OPTION
3256 do_spec_1 (" ", 0, NULL_PTR);
3258 /* Remove slash from pl->prefix. */
3259 if (strlen (pl->prefix) >= bufsize)
3260 bufsize = strlen (pl->prefix) * 2 + 1;
3261 buffer = (char *) xrealloc (buffer, bufsize);
3262 strcpy (buffer, pl->prefix);
3263 idx = strlen (buffer);
3264 if (buffer[idx - 1] == '/'
3265 || buffer[idx - 1] == DIR_SEPARATOR)
3266 buffer[idx - 1] = 0;
3267 do_spec_1 (buffer, 1, NULL_PTR);
3268 /* Make this a separate argument. */
3269 do_spec_1 (" ", 0, NULL_PTR);
3278 /* {...:%efoo} means report an error with `foo' as error message
3279 and don't execute any more commands for this file. */
3283 while (*p != 0 && *p != '\n') p++;
3284 buf = (char *) alloca (p - q + 1);
3285 strncpy (buf, q, p - q);
3295 if (save_temps_flag)
3297 obstack_grow (&obstack, input_basename, basename_length);
3298 delete_this_arg = 0;
3302 #ifdef MKTEMP_EACH_FILE
3303 /* ??? This has a problem: the total number of
3304 values mktemp can return is limited.
3305 That matters for the names of object files.
3306 In 2.4, do something about that. */
3307 struct temp_name *t;
3309 while (*p == '.' || isalpha (*p))
3312 /* See if we already have an association of %g/%u/%U and
3314 for (t = temp_names; t; t = t->next)
3315 if (t->length == p - suffix
3316 && strncmp (t->suffix, suffix, p - suffix) == 0
3317 && t->unique == (c != 'g'))
3320 /* Make a new association if needed. %u requires one. */
3321 if (t == 0 || c == 'u')
3325 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3326 t->next = temp_names;
3329 t->length = p - suffix;
3330 t->suffix = save_string (suffix, p - suffix);
3331 t->unique = (c != 'g');
3332 choose_temp_base ();
3333 t->filename = temp_filename;
3334 t->filename_length = temp_filename_length;
3337 obstack_grow (&obstack, t->filename, t->filename_length);
3338 delete_this_arg = 1;
3340 obstack_grow (&obstack, temp_filename, temp_filename_length);
3341 if (c == 'u' || c == 'U')
3347 sprintf (buff, "%d", unique);
3348 obstack_grow (&obstack, buff, strlen (buff));
3351 delete_this_arg = 1;
3357 obstack_grow (&obstack, input_filename, input_filename_length);
3363 struct prefix_list *pl = include_prefixes.plist;
3365 if (gcc_exec_prefix)
3367 do_spec_1 ("-iprefix", 1, NULL_PTR);
3368 /* Make this a separate argument. */
3369 do_spec_1 (" ", 0, NULL_PTR);
3370 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3371 do_spec_1 (" ", 0, NULL_PTR);
3374 for (; pl; pl = pl->next)
3376 do_spec_1 ("-isystem", 1, NULL_PTR);
3377 /* Make this a separate argument. */
3378 do_spec_1 (" ", 0, NULL_PTR);
3379 do_spec_1 (pl->prefix, 1, NULL_PTR);
3380 do_spec_1 (" ", 0, NULL_PTR);
3386 for (i = 0; i < n_infiles; i++)
3387 store_arg (outfiles[i], 0, 0);
3391 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3396 this_is_library_file = 1;
3400 this_is_output_file = 1;
3405 int index = argbuf_index;
3406 /* Handle the {...} following the %W. */
3409 p = handle_braces (p + 1);
3412 /* If any args were output, mark the last one for deletion
3414 if (argbuf_index != index)
3415 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3419 /* %x{OPTION} records OPTION for %X to output. */
3425 /* Skip past the option value and make a copy. */
3430 string = save_string (p1 + 1, p - p1 - 2);
3432 /* See if we already recorded this option. */
3433 for (i = 0; i < n_linker_options; i++)
3434 if (! strcmp (string, linker_options[i]))
3440 /* This option is new; add it. */
3442 if (!linker_options)
3444 = (char **) xmalloc (n_linker_options * sizeof (char **));
3447 = (char **) xrealloc (linker_options,
3448 n_linker_options * sizeof (char **));
3450 linker_options[n_linker_options - 1] = string;
3454 /* Dump out the options accumulated previously using %x. */
3456 for (i = 0; i < n_linker_options; i++)
3458 do_spec_1 (linker_options[i], 1, NULL_PTR);
3459 /* Make each accumulated option a separate argument. */
3460 do_spec_1 (" ", 0, NULL_PTR);
3464 /* Dump out the options accumulated previously using -Wa,. */
3466 for (i = 0; i < n_assembler_options; i++)
3468 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3469 /* Make each accumulated option a separate argument. */
3470 do_spec_1 (" ", 0, NULL_PTR);
3474 /* Dump out the options accumulated previously using -Wp,. */
3476 for (i = 0; i < n_preprocessor_options; i++)
3478 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3479 /* Make each accumulated option a separate argument. */
3480 do_spec_1 (" ", 0, NULL_PTR);
3484 /* Here are digits and numbers that just process
3485 a certain constant string as a spec. */
3488 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3494 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3500 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3506 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3512 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3518 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3524 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3530 value = do_spec_1 (link_spec, 0, NULL_PTR);
3536 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3542 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3549 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3553 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3557 if (! strncmp (y, "-D", 2))
3558 /* Copy the whole option. */
3559 while (*y && *y != ' ' && *y != '\t')
3561 else if (*y == ' ' || *y == '\t')
3562 /* Copy whitespace to the result. */
3564 /* Don't copy other options. */
3571 value = do_spec_1 (buf, 0, NULL_PTR);
3579 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3583 /* Copy all of CPP_PREDEFINES into BUF,
3584 but put __ after every -D and at the end of each arg. */
3588 if (! strncmp (y, "-D", 2))
3596 || (*(y+1) != '_' && ! isupper (*(y+1))))
3598 /* Stick __ at front of macro name. */
3601 /* Arrange to stick __ at the end as well. */
3605 /* Copy the macro name. */
3606 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3615 /* Copy the value given, if any. */
3616 while (*y && *y != ' ' && *y != '\t')
3619 else if (*y == ' ' || *y == '\t')
3620 /* Copy whitespace to the result. */
3622 /* Don't copy -A options */
3628 /* Copy all of CPP_PREDEFINES into BUF,
3629 but put __ after every -D. */
3633 if (! strncmp (y, "-D", 2))
3638 || (*(y+1) != '_' && ! isupper (*(y+1))))
3640 /* Stick -D__ at front of macro name. */
3646 /* Copy the macro name. */
3647 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3650 /* Copy the value given, if any. */
3651 while (*y && *y != ' ' && *y != '\t')
3656 /* Do not copy this macro - we have just done it before */
3657 while (*y && *y != ' ' && *y != '\t')
3661 else if (*y == ' ' || *y == '\t')
3662 /* Copy whitespace to the result. */
3664 /* Don't copy -A options */
3670 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3674 if (! strncmp (y, "-A", 2))
3675 /* Copy the whole option. */
3676 while (*y && *y != ' ' && *y != '\t')
3678 else if (*y == ' ' || *y == '\t')
3679 /* Copy whitespace to the result. */
3681 /* Don't copy other options. */
3688 value = do_spec_1 (buf, 0, NULL_PTR);
3695 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3700 /* Here we define characters other than letters and digits. */
3703 p = handle_braces (p);
3709 obstack_1grow (&obstack, '%');
3713 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3714 do_spec_1 (" ", 0, NULL_PTR);
3717 /* Process a string found as the value of a spec given by name.
3718 This feature allows individual machine descriptions
3719 to add and use their own specs.
3720 %[...] modifies -D options the way %P does;
3721 %(...) uses the spec unmodified. */
3726 struct spec_list *sl;
3729 /* The string after the S/P is the name of a spec that is to be
3731 while (*p && *p != ')' && *p != ']')
3734 /* See if it's in the list */
3735 for (len = p - name, sl = specs; sl; sl = sl->next)
3736 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3746 value = do_spec_1 (name, 0, NULL_PTR);
3752 char *x = (char *) alloca (strlen (name) * 2 + 1);
3756 /* Copy all of NAME into BUF, but put __ after
3757 every -D and at the end of each arg, */
3760 if (! strncmp (y, "-D", 2))
3768 else if (*y == ' ' || *y == 0)
3782 value = do_spec_1 (buf, 0, NULL_PTR);
3788 /* Discard the closing paren or bracket. */
3796 int c1 = *p++; /* Select first or second version number. */
3797 char *v = compiler_version;
3799 /* If desired, advance to second version number. */
3802 /* Set P after the first period. */
3803 while (*v != 0 && *v != ' ' && *v != '.')
3808 /* Set Q at the next period or at the end. */
3810 while (*q != 0 && *q != ' ' && *q != '.')
3812 /* Empty string means zero. */
3818 /* Put that part into the command. */
3819 obstack_grow (&obstack, v, q - v);
3825 if (input_from_pipe)
3826 do_spec_1 ("-", 0, NULL_PTR);
3835 /* Backslash: treat next character as ordinary. */
3840 /* Ordinary character: put it into the current argument. */
3841 obstack_1grow (&obstack, c);
3845 return 0; /* End of string */
3848 /* Return 0 if we call do_spec_1 and that returns -1. */
3861 /* A `|' after the open-brace means,
3862 if the test fails, output a single minus sign rather than nothing.
3863 This is used in %{|!pipe:...}. */
3867 /* A `!' after the open-brace negates the condition:
3868 succeed if the specified switch is not present. */
3872 /* A `.' after the open-brace means test against the current suffix. */
3882 while (*p != ':' && *p != '}') p++;
3885 register int count = 1;
3903 int found = (input_suffix != 0
3904 && strlen (input_suffix) == p - filter
3905 && strncmp (input_suffix, filter, p - filter) == 0);
3911 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3916 else if (p[-1] == '*' && p[0] == '}')
3918 /* Substitute all matching switches as separate args. */
3921 for (i = 0; i < n_switches; i++)
3922 if (!strncmp (switches[i].part1, filter, p - filter)
3923 && check_live_switch (i, p - filter))
3928 /* Test for presence of the specified switch. */
3932 /* If name specified ends in *, as in {x*:...},
3933 check for %* and handle that case. */
3934 if (p[-1] == '*' && !negate)
3939 /* First see whether we have %*. */
3943 if (*r == '%' && r[1] == '*')
3947 /* If we do, handle that case. */
3950 /* Substitute all matching switches as separate args.
3951 But do this by substituting for %*
3952 in the text that follows the colon. */
3954 unsigned hard_match_len = p - filter - 1;
3955 char *string = save_string (p + 1, q - p - 2);
3957 for (i = 0; i < n_switches; i++)
3958 if (!strncmp (switches[i].part1, filter, hard_match_len)
3959 && check_live_switch (i, -1))
3961 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3962 /* Pass any arguments this switch has. */
3970 /* If name specified ends in *, as in {x*:...},
3971 check for presence of any switch name starting with x. */
3974 for (i = 0; i < n_switches; i++)
3976 unsigned hard_match_len = p - filter - 1;
3978 if (!strncmp (switches[i].part1, filter, hard_match_len)
3979 && check_live_switch (i, hard_match_len))
3985 /* Otherwise, check for presence of exact name specified. */
3988 for (i = 0; i < n_switches; i++)
3990 if (!strncmp (switches[i].part1, filter, p - filter)
3991 && switches[i].part1[p - filter] == 0
3992 && check_live_switch (i, -1))
4000 /* If it is as desired (present for %{s...}, absent for %{-s...})
4001 then substitute either the switch or the specified
4002 conditional text. */
4003 if (present != negate)
4011 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4017 /* Here if a %{|...} conditional fails: output a minus sign,
4018 which means "standard output" or "standard input". */
4019 do_spec_1 ("-", 0, NULL_PTR);
4026 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4027 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4028 spec, or -1 if either exact match or %* is used.
4030 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4031 whose value does not begin with "no-" is obsoleted by the same value
4032 with the "no-", similarly for a switch with the "no-" prefix. */
4035 check_live_switch (switchnum, prefix_length)
4039 char *name = switches[switchnum].part1;
4042 /* In the common case of {<at-most-one-letter>*}, a negating
4043 switch would always match, so ignore that case. We will just
4044 send the conflicting switches to the compiler phase. */
4045 if (prefix_length >= 0 && prefix_length <= 1)
4048 /* If we already processed this switch and determined if it was
4049 live or not, return our past determination. */
4050 if (switches[switchnum].live_cond != 0)
4051 return switches[switchnum].live_cond > 0;
4053 /* Now search for duplicate in a manner that depends on the name. */
4057 for (i = switchnum + 1; i < n_switches; i++)
4058 if (switches[i].part1[0] == 'O')
4060 switches[switchnum].valid = 1;
4061 switches[switchnum].live_cond = -1;
4066 case 'W': case 'f': case 'm':
4067 if (! strncmp (name + 1, "no-", 3))
4069 /* We have Xno-YYY, search for XYYY. */
4070 for (i = switchnum + 1; i < n_switches; i++)
4071 if (switches[i].part1[0] == name[0]
4072 && ! strcmp (&switches[i].part1[1], &name[4]))
4074 switches[switchnum].valid = 1;
4075 switches[switchnum].live_cond = -1;
4081 /* We have XYYY, search for Xno-YYY. */
4082 for (i = switchnum + 1; i < n_switches; i++)
4083 if (switches[i].part1[0] == name[0]
4084 && switches[i].part1[1] == 'n'
4085 && switches[i].part1[2] == 'o'
4086 && switches[i].part1[3] == '-'
4087 && !strcmp (&switches[i].part1[4], &name[1]))
4089 switches[switchnum].valid = 1;
4090 switches[switchnum].live_cond = -1;
4097 /* Otherwise the switch is live. */
4098 switches[switchnum].live_cond = 1;
4102 /* Pass a switch to the current accumulating command
4103 in the same form that we received it.
4104 SWITCHNUM identifies the switch; it is an index into
4105 the vector of switches gcc received, which is `switches'.
4106 This cannot fail since it never finishes a command line.
4108 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4111 give_switch (switchnum, omit_first_word)
4113 int omit_first_word;
4115 if (!omit_first_word)
4117 do_spec_1 ("-", 0, NULL_PTR);
4118 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4120 do_spec_1 (" ", 0, NULL_PTR);
4121 if (switches[switchnum].args != 0)
4124 for (p = switches[switchnum].args; *p; p++)
4126 do_spec_1 (*p, 1, NULL_PTR);
4127 do_spec_1 (" ", 0, NULL_PTR);
4130 switches[switchnum].valid = 1;
4133 /* Search for a file named NAME trying various prefixes including the
4134 user's -B prefix and some standard ones.
4135 Return the absolute file name found. If nothing is found, return NAME. */
4143 /* Try multilib_dir if it is defined. */
4144 if (multilib_dir != NULL)
4148 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4149 strcpy (try, multilib_dir);
4150 strcat (try, dir_separator_str);
4153 newname = find_a_file (&startfile_prefixes, try, R_OK);
4155 /* If we don't find it in the multi library dir, then fall
4156 through and look for it in the normal places. */
4157 if (newname != NULL)
4161 newname = find_a_file (&startfile_prefixes, name, R_OK);
4162 return newname ? newname : name;
4165 /* Determine whether a directory exists. If LINKER, return 0 for
4166 certain fixed names not needed by the linker. If not LINKER, it is
4167 only important to return 0 if the host machine has a small ARG_MAX
4171 is_directory (path1, path2, linker)
4176 int len1 = strlen (path1);
4177 int len2 = strlen (path2);
4178 char *path = (char *) alloca (3 + len1 + len2);
4182 #ifndef SMALL_ARG_MAX
4187 /* Construct the path from the two parts. Ensure the string ends with "/.".
4188 The resulting path will be a directory even if the given path is a
4190 bcopy (path1, path, len1);
4191 bcopy (path2, path + len1, len2);
4192 cp = path + len1 + len2;
4193 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4194 *cp++ = DIR_SEPARATOR;
4198 /* Exclude directories that the linker is known to search. */
4201 && strcmp (path, concat4 (dir_separator_str, "lib",
4202 dir_separator_str, ".")) == 0)
4204 && strcmp (path, concat6 (dir_separator_str, "usr",
4205 dir_separator_str, "lib",
4206 dir_separator_str, ".")) == 0)))
4209 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4212 /* On fatal signals, delete all the temporary files. */
4215 fatal_error (signum)
4218 signal (signum, SIG_DFL);
4219 delete_failure_queue ();
4220 delete_temp_files ();
4221 /* Get the same signal again, this time not handled,
4222 so its normal effect occurs. */
4223 kill (getpid (), signum);
4234 int linker_was_run = 0;
4235 char *explicit_link_files;
4239 p = argv[0] + strlen (argv[0]);
4240 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4243 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4244 signal (SIGINT, fatal_error);
4246 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4247 signal (SIGHUP, fatal_error);
4249 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4250 signal (SIGTERM, fatal_error);
4252 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4253 signal (SIGPIPE, fatal_error);
4257 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4259 obstack_init (&obstack);
4261 /* Set up to remember the pathname of gcc and any options
4262 needed for collect. We use argv[0] instead of programname because
4263 we need the complete pathname. */
4264 obstack_init (&collect_obstack);
4265 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4266 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4267 putenv (obstack_finish (&collect_obstack));
4269 #ifdef INIT_ENVIRONMENT
4270 /* Set up any other necessary machine specific environment variables. */
4271 putenv (INIT_ENVIRONMENT);
4274 /* Choose directory for temp files. */
4276 choose_temp_base ();
4278 /* Make a table of what switches there are (switches, n_switches).
4279 Make a table of specified input files (infiles, n_infiles).
4280 Decode switches that are handled locally. */
4282 process_command (argc, argv);
4284 /* Initialize the vector of specs to just the default.
4285 This means one element containing 0s, as a terminator. */
4287 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4288 bcopy ((char *) default_compilers, (char *) compilers,
4289 sizeof default_compilers);
4290 n_compilers = n_default_compilers;
4292 /* Read specs from a file if there is one. */
4294 machine_suffix = concat4 (spec_machine, dir_separator_str,
4295 spec_version, dir_separator_str);
4296 just_machine_suffix = concat (spec_machine, dir_separator_str);
4298 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4299 /* Read the specs file unless it is a default one. */
4300 if (specs_file != 0 && strcmp (specs_file, "specs"))
4301 read_specs (specs_file);
4303 /* If not cross-compiling, look for startfiles in the standard places. */
4304 /* The fact that these are done here, after reading the specs file,
4305 means that it cannot be found in these directories.
4306 But that's okay. It should never be there anyway. */
4309 #ifdef MD_EXEC_PREFIX
4310 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4311 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4314 #ifdef MD_STARTFILE_PREFIX
4315 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4318 #ifdef MD_STARTFILE_PREFIX_1
4319 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4322 /* If standard_startfile_prefix is relative, base it on
4323 standard_exec_prefix. This lets us move the installed tree
4324 as a unit. If GCC_EXEC_PREFIX is defined, base
4325 standard_startfile_prefix on that as well. */
4326 if (*standard_startfile_prefix == '/'
4327 || *standard_startfile_prefix == DIR_SEPARATOR)
4328 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4332 if (gcc_exec_prefix)
4333 add_prefix (&startfile_prefixes,
4334 concat (gcc_exec_prefix, standard_startfile_prefix),
4336 add_prefix (&startfile_prefixes,
4337 concat3 (standard_exec_prefix,
4339 standard_startfile_prefix),
4343 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4345 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4347 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4348 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4353 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4354 add_prefix (&startfile_prefixes,
4355 concat (gcc_exec_prefix, standard_startfile_prefix),
4359 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4360 if (gcc_exec_prefix)
4362 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4363 + strlen (spec_version)
4364 + strlen (spec_machine) + 3);
4365 strcpy (temp, gcc_exec_prefix);
4366 strcat (temp, spec_machine);
4367 strcat (temp, dir_separator_str);
4368 strcat (temp, spec_version);
4369 strcat (temp, dir_separator_str);
4370 gcc_exec_prefix = temp;
4373 /* Now we have the specs.
4374 Set the `valid' bits for switches that match anything in any spec. */
4376 validate_all_switches ();
4378 /* Now that we have the switches and the specs, set
4379 the subdirectory based on the options. */
4380 set_multilib_dir ();
4382 /* Warn about any switches that no pass was interested in. */
4384 for (i = 0; i < n_switches; i++)
4385 if (! switches[i].valid)
4386 error ("unrecognized option `-%s'", switches[i].part1);
4388 /* Obey some of the options. */
4390 if (print_search_dirs)
4392 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4393 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4394 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4398 if (print_file_name)
4400 printf ("%s\n", find_file (print_file_name));
4404 if (print_prog_name)
4406 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4407 printf ("%s\n", (newname ? newname : print_prog_name));
4411 if (print_multi_lib)
4413 print_multilib_info ();
4417 if (print_multi_directory)
4419 if (multilib_dir == NULL)
4422 printf ("%s\n", multilib_dir);
4428 if (! strcmp (version_string, compiler_version))
4429 fprintf (stderr, "gcc version %s\n", version_string);
4431 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4432 version_string, compiler_version);
4439 fatal ("No input files");
4441 /* Make a place to record the compiler output file names
4442 that correspond to the input files. */
4444 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4445 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4447 /* Record which files were specified explicitly as link input. */
4449 explicit_link_files = xmalloc (n_infiles);
4450 bzero (explicit_link_files, n_infiles);
4452 for (i = 0; i < n_infiles; i++)
4454 register struct compiler *cp = 0;
4455 int this_file_error = 0;
4457 /* Tell do_spec what to substitute for %i. */
4459 input_filename = infiles[i].name;
4460 input_filename_length = strlen (input_filename);
4461 input_file_number = i;
4463 /* Use the same thing in %o, unless cp->spec says otherwise. */
4465 outfiles[i] = input_filename;
4467 /* Figure out which compiler from the file's suffix. */
4469 cp = lookup_compiler (infiles[i].name, input_filename_length,
4470 infiles[i].language);
4474 /* Ok, we found an applicable compiler. Run its spec. */
4475 /* First say how much of input_filename to substitute for %b */
4479 input_basename = input_filename;
4480 for (p = input_filename; *p; p++)
4481 if (*p == '/' || *p == DIR_SEPARATOR)
4482 input_basename = p + 1;
4484 /* Find a suffix starting with the last period,
4485 and set basename_length to exclude that suffix. */
4486 basename_length = strlen (input_basename);
4487 p = input_basename + basename_length;
4488 while (p != input_basename && *p != '.') --p;
4489 if (*p == '.' && p != input_basename)
4491 basename_length = p - input_basename;
4492 input_suffix = p + 1;
4498 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4500 len += strlen (cp->spec[j]);
4502 p = (char *) xmalloc (len + 1);
4505 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4508 strcpy (p + len, cp->spec[j]);
4509 len += strlen (cp->spec[j]);
4512 value = do_spec (p);
4515 this_file_error = 1;
4518 /* If this file's name does not contain a recognized suffix,
4519 record it as explicit linker input. */
4522 explicit_link_files[i] = 1;
4524 /* Clear the delete-on-failure queue, deleting the files in it
4525 if this compilation failed. */
4527 if (this_file_error)
4529 delete_failure_queue ();
4532 /* If this compilation succeeded, don't delete those files later. */
4533 clear_failure_queue ();
4536 /* Run ld to link all the compiler output files. */
4538 if (error_count == 0)
4540 int tmp = execution_count;
4544 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4546 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4547 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4549 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4551 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4552 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4555 for (i = 0; i < n_switches; i++)
4559 obstack_grow (&collect_obstack, " ", 1);
4562 obstack_grow (&collect_obstack, "-", 1);
4563 obstack_grow (&collect_obstack, switches[i].part1,
4564 strlen (switches[i].part1));
4566 for (args = switches[i].args; args && *args; args++)
4568 obstack_grow (&collect_obstack, " ", 1);
4569 obstack_grow (&collect_obstack, *args, strlen (*args));
4572 obstack_grow (&collect_obstack, "\0", 1);
4573 putenv (obstack_finish (&collect_obstack));
4575 value = do_spec (link_command_spec);
4578 linker_was_run = (tmp != execution_count);
4581 /* Warn if a -B option was specified but the prefix was never used. */
4582 unused_prefix_warnings (&exec_prefixes);
4583 unused_prefix_warnings (&startfile_prefixes);
4585 /* If options said don't run linker,
4586 complain about input files to be given to the linker. */
4588 if (! linker_was_run && error_count == 0)
4589 for (i = 0; i < n_infiles; i++)
4590 if (explicit_link_files[i])
4591 error ("%s: linker input file unused since linking not done",
4594 /* Delete some or all of the temporary files we made. */
4597 delete_failure_queue ();
4598 delete_temp_files ();
4600 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4605 /* Find the proper compilation spec for the file name NAME,
4606 whose length is LENGTH. LANGUAGE is the specified language,
4607 or 0 if none specified. */
4609 static struct compiler *
4610 lookup_compiler (name, length, language)
4615 struct compiler *cp;
4617 /* Look for the language, if one is spec'd. */
4620 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4624 if (cp->suffix[0] == '@'
4625 && !strcmp (cp->suffix + 1, language))
4629 error ("language %s not recognized", language);
4632 /* Look for a suffix. */
4633 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4635 if (/* The suffix `-' matches only the file name `-'. */
4636 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4638 (strlen (cp->suffix) < length
4639 /* See if the suffix matches the end of NAME. */
4641 && (!strcmp (cp->suffix,
4642 name + length - strlen (cp->suffix))
4643 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4644 && !strcasecmp (cp->suffix,
4645 name + length - strlen (cp->suffix)))))
4647 && !strcmp (cp->suffix,
4648 name + length - strlen (cp->suffix))))
4651 if (cp->spec[0][0] == '@')
4653 struct compiler *new;
4654 /* An alias entry maps a suffix to a language.
4655 Search for the language; pass 0 for NAME and LENGTH
4656 to avoid infinite recursion if language not found.
4657 Construct the new compiler spec. */
4658 language = cp->spec[0] + 1;
4659 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4660 new->suffix = cp->suffix;
4661 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4662 (char *) new->spec, sizeof new->spec);
4665 /* A non-alias entry: return it. */
4677 register char *value = (char *) malloc (size);
4679 fatal ("virtual memory exhausted");
4684 xrealloc (ptr, size)
4688 register char *value = (char *) realloc (ptr, size);
4690 fatal ("virtual memory exhausted");
4694 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4700 int len1 = strlen (s1);
4701 int len2 = strlen (s2);
4702 char *result = xmalloc (len1 + len2 + 1);
4704 strcpy (result, s1);
4705 strcpy (result + len1, s2);
4706 *(result + len1 + len2) = 0;
4712 concat3 (s1, s2, s3)
4715 return concat (concat (s1, s2), s3);
4719 concat4 (s1, s2, s3, s4)
4720 char *s1, *s2, *s3, *s4;
4722 return concat (concat (s1, s2), concat (s3, s4));
4726 concat6 (s1, s2, s3, s4, s5, s6)
4727 char *s1, *s2, *s3, *s4, *s5, *s6;
4729 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4733 save_string (s, len)
4737 register char *result = xmalloc (len + 1);
4739 bcopy (s, result, len);
4745 pfatal_with_name (name)
4750 if (errno < sys_nerr)
4751 s = concat ("%s: ", my_strerror( errno ));
4753 s = "cannot open %s";
4758 perror_with_name (name)
4763 if (errno < sys_nerr)
4764 s = concat ("%s: ", my_strerror( errno ));
4766 s = "cannot open %s";
4776 if (errno < sys_nerr)
4777 s = concat ("installation problem, cannot exec %s: ", my_strerror( errno ));
4779 s = "installation problem, cannot exec %s";
4783 /* More 'friendly' abort that prints the line and file.
4784 config.h can #define abort fancy_abort if you like that sort of thing. */
4789 fatal ("Internal gcc abort.");
4794 /* Output an error message and exit */
4797 fatal VPROTO((char *format, ...))
4804 VA_START (ap, format);
4807 format = va_arg (ap, char*);
4810 fprintf (stderr, "%s: ", programname);
4811 vfprintf (stderr, format, ap);
4813 fprintf (stderr, "\n");
4814 delete_temp_files ();
4819 error VPROTO((char *format, ...))
4826 VA_START (ap, format);
4829 format = va_arg (ap, char*);
4832 fprintf (stderr, "%s: ", programname);
4833 vfprintf (stderr, format, ap);
4836 fprintf (stderr, "\n");
4839 #else /* not HAVE_VPRINTF */
4842 fatal (msg, arg1, arg2)
4843 char *msg, *arg1, *arg2;
4845 error (msg, arg1, arg2);
4846 delete_temp_files ();
4851 error (msg, arg1, arg2)
4852 char *msg, *arg1, *arg2;
4854 fprintf (stderr, "%s: ", programname);
4855 fprintf (stderr, msg, arg1, arg2);
4856 fprintf (stderr, "\n");
4859 #endif /* not HAVE_VPRINTF */
4863 validate_all_switches ()
4865 struct compiler *comp;
4868 struct spec_list *spec;
4870 for (comp = compilers; comp->spec[0]; comp++)
4873 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4877 if (c == '%' && *p == '{')
4878 /* We have a switch spec. */
4879 validate_switches (p + 1);
4883 /* look through the linked list of extra specs read from the specs file */
4884 for (spec = specs; spec ; spec = spec->next)
4888 if (c == '%' && *p == '{')
4889 /* We have a switch spec. */
4890 validate_switches (p + 1);
4893 p = link_command_spec;
4895 if (c == '%' && *p == '{')
4896 /* We have a switch spec. */
4897 validate_switches (p + 1);
4899 /* Now notice switches mentioned in the machine-specific specs. */
4903 if (c == '%' && *p == '{')
4904 /* We have a switch spec. */
4905 validate_switches (p + 1);
4909 if (c == '%' && *p == '{')
4910 /* We have a switch spec. */
4911 validate_switches (p + 1);
4915 if (c == '%' && *p == '{')
4916 /* We have a switch spec. */
4917 validate_switches (p + 1);
4919 p = signed_char_spec;
4921 if (c == '%' && *p == '{')
4922 /* We have a switch spec. */
4923 validate_switches (p + 1);
4927 if (c == '%' && *p == '{')
4928 /* We have a switch spec. */
4929 validate_switches (p + 1);
4933 if (c == '%' && *p == '{')
4934 /* We have a switch spec. */
4935 validate_switches (p + 1);
4939 if (c == '%' && *p == '{')
4940 /* We have a switch spec. */
4941 validate_switches (p + 1);
4945 if (c == '%' && *p == '{')
4946 /* We have a switch spec. */
4947 validate_switches (p + 1);
4951 if (c == '%' && *p == '{')
4952 /* We have a switch spec. */
4953 validate_switches (p + 1);
4957 if (c == '%' && *p == '{')
4958 /* We have a switch spec. */
4959 validate_switches (p + 1);
4962 /* Look at the switch-name that comes after START
4963 and mark as valid all supplied switches that match it. */
4966 validate_switches (start)
4969 register char *p = start;
4984 while (*p != ':' && *p != '}') p++;
4988 else if (p[-1] == '*')
4990 /* Mark all matching switches as valid. */
4992 for (i = 0; i < n_switches; i++)
4993 if (!strncmp (switches[i].part1, filter, p - filter))
4994 switches[i].valid = 1;
4998 /* Mark an exact matching switch as valid. */
4999 for (i = 0; i < n_switches; i++)
5001 if (!strncmp (switches[i].part1, filter, p - filter)
5002 && switches[i].part1[p - filter] == 0)
5003 switches[i].valid = 1;
5008 /* Check whether a particular argument was used. */
5017 for (i = 0; i < n_switches; i++)
5018 if (! strncmp (switches[i].part1, p, len)
5019 && strlen (switches[i].part1) == len)
5024 /* Work out the subdirectory to use based on the
5025 options. The format of multilib_select is a list of elements.
5026 Each element is a subdirectory name followed by a list of options
5027 followed by a semicolon. gcc will consider each line in turn. If
5028 none of the options beginning with an exclamation point are
5029 present, and all of the other options are present, that
5030 subdirectory will be used. */
5035 char *p = multilib_select;
5037 char *this_path, *this_arg;
5042 /* Ignore newlines. */
5049 /* Get the initial path. */
5057 this_path_len = p - this_path;
5059 /* Check the arguments. */
5074 while (*p != ' ' && *p != ';')
5081 if (*this_arg == '!')
5082 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5084 failed = ! used_arg (this_arg, p - this_arg);
5092 if (this_path_len != 1
5093 || this_path[0] != '.')
5095 multilib_dir = xmalloc (this_path_len + 1);
5096 strncpy (multilib_dir, this_path, this_path_len);
5097 multilib_dir[this_path_len] = '\0';
5106 /* Print out the multiple library subdirectory selection
5107 information. This prints out a series of lines. Each line looks
5108 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5109 required. Only the desired options are printed out, the negative
5110 matches. The options are print without a leading dash. There are
5111 no spaces to make it easy to use the information in the shell.
5112 Each subdirectory is printed only once. This assumes the ordering
5113 generated by the genmultilib script. */
5116 print_multilib_info ()
5118 char *p = multilib_select;
5119 char *last_path = 0, *this_path;
5121 int last_path_len = 0;
5125 /* Ignore newlines. */
5132 /* Get the initial path. */
5141 /* If this is a duplicate, skip it. */
5142 skip = (last_path != 0 && p - this_path == last_path_len
5143 && ! strncmp (last_path, this_path, last_path_len));
5145 last_path = this_path;
5146 last_path_len = p - this_path;
5152 for (p1 = last_path; p1 < p; p1++)
5171 use_arg = *p != '!';
5176 while (*p != ' ' && *p != ';')