1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
40 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Include multi-lib information. */
64 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
67 #define WTERMSIG(S) ((S) & 0x7f)
70 #define WIFEXITED(S) (((S) & 0xff) == 0)
73 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
76 /* Add prototype support. */
78 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
79 #define PROTO(ARGS) ARGS
81 #define PROTO(ARGS) ()
87 #define PVPROTO(ARGS) ARGS
88 #define VPROTO(ARGS) ARGS
89 #define VA_START(va_list,var) va_start(va_list,var)
91 #define PVPROTO(ARGS) ()
92 #define VPROTO(ARGS) (va_alist) va_dcl
93 #define VA_START(va_list,var) va_start(va_list)
97 /* Define a generic NULL if one hasn't already been defined. */
103 /* Define O_RDONLY if the system hasn't defined it for us. */
109 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
110 #define GENERIC_PTR void *
112 #define GENERIC_PTR char *
117 #define NULL_PTR ((GENERIC_PTR)0)
124 /* On MSDOS, write temp files in current dir
125 because there's no place else we can expect to use. */
132 /* Test if something is a normal file. */
134 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
137 /* Test if something is a directory. */
139 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
142 /* By default there is no special suffix for executables. */
143 #ifndef EXECUTABLE_SUFFIX
144 #define EXECUTABLE_SUFFIX ""
147 /* By default, the suffix for object files is the letter "o". */
148 #ifndef OBJECT_SUFFIX
149 #define OBJECT_SUFFIX "o"
152 /* By default, colon separates directories in a path. */
153 #ifndef PATH_SEPARATOR
154 #define PATH_SEPARATOR ':'
157 #ifndef DIR_SEPARATOR
158 #define DIR_SEPARATOR '/'
161 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
163 #define obstack_chunk_alloc xmalloc
164 #define obstack_chunk_free free
167 extern char *getenv ();
174 #if defined(bsd4_4) || defined(__NetBSD__)
175 extern const char *const sys_errlist[];
177 extern char *sys_errlist[];
180 extern int execv (), execvp ();
182 /* If a stage of compilation returns an exit status >= 1,
183 compilation of that file ceases. */
185 #define MIN_FATAL_STATUS 1
187 /* Flag saying to print the full filename of this file
188 as found through our usual search mechanism. */
190 static char *print_file_name = NULL;
192 /* As print_file_name, but search for executable file. */
194 static char *print_prog_name = NULL;
196 /* Flag saying to print the relative path we'd use to
197 find libgcc.a given the current compiler flags. */
199 static int print_multi_directory;
201 /* Flag saying to print the list of subdirectories and
202 compiler flags used to select them in a standard form. */
204 static int print_multi_lib;
206 /* Flag indicating whether we should print the command and arguments */
208 static int verbose_flag;
210 /* Nonzero means write "temp" files in source directory
211 and use the source file's name in them, and don't delete them. */
213 static int save_temps_flag;
215 /* The compiler version. */
217 static char *compiler_version;
219 /* The target version specified with -V */
221 static char *spec_version = DEFAULT_TARGET_VERSION;
223 /* The target machine specified with -b. */
225 static char *spec_machine = DEFAULT_TARGET_MACHINE;
227 /* Nonzero if cross-compiling.
228 When -b is used, the value comes from the `specs' file. */
231 static int cross_compile = 1;
233 static int cross_compile = 0;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count = 0;
240 /* This is the obstack which we use to allocate many strings. */
242 static struct obstack obstack;
244 /* This is the obstack to build an environment variable to pass to
245 collect2 that describes all of the relevant switches of what to
246 pass the compiler in building the list of pointers to constructors
249 static struct obstack collect_obstack;
251 extern char *version_string;
253 /* Forward declaration for prototypes. */
256 static void set_spec PROTO((char *, char *));
257 static struct compiler *lookup_compiler PROTO((char *, int, char *));
258 static char *find_a_file PROTO((struct path_prefix *, char *, int));
259 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
260 static char *skip_whitespace PROTO((char *));
261 static void record_temp_file PROTO((char *, int, int));
262 static void delete_if_ordinary PROTO((char *));
263 static void delete_temp_files PROTO((void));
264 static void delete_failure_queue PROTO((void));
265 static void clear_failure_queue PROTO((void));
266 static char *choose_temp_base_try PROTO((char *, char *));
267 static void choose_temp_base PROTO((void));
268 static int check_live_switch PROTO((int, int));
269 static char *handle_braces PROTO((char *));
270 static char *save_string PROTO((char *, int));
271 static char *concat PROTO((char *, char *));
272 static char *concat3 PROTO((char *, char *, char *));
273 static char *concat4 PROTO((char *, char *, char *, char *));
274 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
276 static int do_spec PROTO((char *));
277 static int do_spec_1 PROTO((char *, int, char *));
278 static char *find_file PROTO((char *));
279 static int is_directory PROTO((char *, char *, int));
280 static void validate_switches PROTO((char *));
281 static void validate_all_switches PROTO((void));
282 static void give_switch PROTO((int, int));
283 static int used_arg PROTO((char *, int));
284 static void set_multilib_dir PROTO((void));
285 static void print_multilib_info PROTO((void));
286 static void pfatal_with_name PROTO((char *));
287 static void perror_with_name PROTO((char *));
288 static void perror_exec PROTO((char *));
290 static void fatal PVPROTO((char *, ...));
291 static void error PVPROTO((char *, ...));
293 /* We must not provide any prototype here, even if ANSI C. */
294 static void fatal PROTO(());
295 static void error PROTO(());
302 /* Specs are strings containing lines, each of which (if not blank)
303 is made up of a program name, and arguments separated by spaces.
304 The program name must be exact and start from root, since no path
305 is searched and it is unreliable to depend on the current working directory.
306 Redirection of input or output is not supported; the subprograms must
307 accept filenames saying what files to read and write.
309 In addition, the specs can contain %-sequences to substitute variable text
310 or for conditional text. Here is a table of all defined %-sequences.
311 Note that spaces are not generated automatically around the results of
312 expanding these sequences; therefore, you can concatenate them together
313 or with constant text in a single argument.
315 %% substitute one % into the program name or argument.
316 %i substitute the name of the input file being processed.
317 %b substitute the basename of the input file being processed.
318 This is the substring up to (and not including) the last period
319 and not including the directory.
320 %g substitute the temporary-file-name-base. This is a string chosen
321 once per compilation. Different temporary file names are made by
322 concatenation of constant strings on the end, as in `%g.s'.
323 %g also has the same effect of %d.
324 %u like %g, but make the temporary file name unique.
325 %U returns the last file name generated with %u.
326 %d marks the argument containing or following the %d as a
327 temporary file name, so that that file will be deleted if CC exits
328 successfully. Unlike %g, this contributes no text to the argument.
329 %w marks the argument containing or following the %w as the
330 "output file" of this compilation. This puts the argument
331 into the sequence of arguments that %o will substitute later.
333 like %{...} but mark last argument supplied within
334 as a file to be deleted on failure.
335 %o substitutes the names of all the output files, with spaces
336 automatically placed around them. You should write spaces
337 around the %o as well or the results are undefined.
338 %o is for use in the specs for running the linker.
339 Input files whose names have no recognized suffix are not compiled
340 at all, but they are included among the output files, so they will
342 %O substitutes the suffix for object files.
343 %p substitutes the standard macro predefinitions for the
344 current target machine. Use this when running cpp.
345 %P like %p, but puts `__' before and after the name of each macro.
346 (Except macros that already have __.)
348 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
349 %s current argument is the name of a library or startup file of some sort.
350 Search for that file in a standard list of directories
351 and substitute the full name found.
352 %eSTR Print STR as an error message. STR is terminated by a newline.
353 Use this when inconsistent options are detected.
354 %x{OPTION} Accumulate an option for %X.
355 %X Output the accumulated linker options specified by compilations.
356 %Y Output the accumulated assembler options specified by compilations.
357 %Z Output the accumulated preprocessor options specified by compilations.
358 %v1 Substitute the major version number of GCC.
359 (For version 2.5.n, this is 2.)
360 %v2 Substitute the minor version number of GCC.
361 (For version 2.5.n, this is 5.)
362 %a process ASM_SPEC as a spec.
363 This allows config.h to specify part of the spec for running as.
364 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
365 used here. This can be used to run a post-processor after the
366 assembler has done it's job.
367 %D Dump out a -L option for each directory in startfile_prefixes.
368 If multilib_dir is set, extra entries are generated with it affixed.
369 %l process LINK_SPEC as a spec.
370 %L process LIB_SPEC as a spec.
371 %G process LIBGCC_SPEC as a spec.
372 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
373 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
374 %c process SIGNED_CHAR_SPEC as a spec.
375 %C process CPP_SPEC as a spec. A capital C is actually used here.
376 %1 process CC1_SPEC as a spec.
377 %2 process CC1PLUS_SPEC as a spec.
378 %| output "-" if the input for the current command is coming from a pipe.
379 %* substitute the variable part of a matched option. (See below.)
380 Note that each comma in the substituted string is replaced by
382 %{S} substitutes the -S switch, if that switch was given to CC.
383 If that switch was not specified, this substitutes nothing.
384 Here S is a metasyntactic variable.
385 %{S*} substitutes all the switches specified to CC whose names start
386 with -S. This is used for -o, -D, -I, etc; switches that take
387 arguments. CC considers `-o foo' as being one switch whose
388 name starts with `o'. %{o*} would substitute this text,
389 including the space; thus, two arguments would be generated.
390 %{S*:X} substitutes X if one or more switches whose names start with -S are
391 specified to CC. Note that the tail part of the -S option
392 (i.e. the part matched by the `*') will be substituted for each
393 occurrence of %* within X.
394 %{S:X} substitutes X, but only if the -S switch was given to CC.
395 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
396 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
397 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
398 %{.S:X} substitutes X, but only if processing a file with suffix S.
399 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
400 %(Spec) processes a specification defined in a specs file as *Spec:
401 %[Spec] as above, but put __ around -D arguments
403 The conditional text X in a %{S:X} or %{!S:X} construct may contain
404 other nested % constructs or spaces, or even newlines. They are
405 processed as usual, as described above.
407 The -O, -f, -m, and -W switches are handled specifically in these
408 constructs. If another value of -O or the negated form of a -f, -m, or
409 -W switch is found later in the command line, the earlier switch
410 value is ignored, except with {S*} where S is just one letter; this
411 passes all matching options.
413 The character | is used to indicate that a command should be piped to
414 the following command, but only if -pipe is specified.
416 Note that it is built into CC which switches take arguments and which
417 do not. You might think it would be useful to generalize this to
418 allow each compiler's spec to say which switches take arguments. But
419 this cannot be done in a consistent fashion. CC cannot even decide
420 which input files have been specified without knowing which switches
421 take arguments, and it must know which input files to compile in order
422 to tell which compilers to run.
424 CC also knows implicitly that arguments starting in `-l' are to be
425 treated as compiler output files, and passed to the linker in their
426 proper position among the other output files. */
428 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
430 /* config.h can define ASM_SPEC to provide extra args to the assembler
431 or extra switch-translations. */
436 /* config.h can define ASM_FINAL_SPEC to run a post processor after
437 the assembler has run. */
438 #ifndef ASM_FINAL_SPEC
439 #define ASM_FINAL_SPEC ""
442 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
443 or extra switch-translations. */
448 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
449 or extra switch-translations. */
454 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
455 or extra switch-translations. */
457 #define CC1PLUS_SPEC ""
460 /* config.h can define LINK_SPEC to provide extra args to the linker
461 or extra switch-translations. */
466 /* config.h can define LIB_SPEC to override the default libraries. */
468 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
471 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
474 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
475 /* Have gcc do the search for libgcc.a. */
476 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
478 #define LIBGCC_SPEC "%{!shared:-lgcc}"
482 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
483 #ifndef STARTFILE_SPEC
484 #define STARTFILE_SPEC \
485 "%{!shared:%{pg:gcrt0.%O%s}%{!pg:%{p:mcrt0.%O%s}%{!p:crt0.%O%s}}}"
488 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
489 Make the string nonempty to require spaces there. */
490 #ifndef SWITCHES_NEED_SPACES
491 #define SWITCHES_NEED_SPACES ""
494 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
496 #define ENDFILE_SPEC ""
499 /* This spec is used for telling cpp whether char is signed or not. */
500 #ifndef SIGNED_CHAR_SPEC
501 /* Use #if rather than ?:
502 because MIPS C compiler rejects like ?: in initializers. */
503 #if DEFAULT_SIGNED_CHAR
504 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
506 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
510 /* MULTILIB_SELECT comes from multilib.h. It gives a
511 string interpreted by set_multilib_dir to select a library
512 subdirectory based on the compiler options. */
513 #ifndef MULTILIB_SELECT
514 #define MULTILIB_SELECT ". ;"
517 static char *cpp_spec = CPP_SPEC;
518 static char *cpp_predefines = CPP_PREDEFINES;
519 static char *cc1_spec = CC1_SPEC;
520 static char *cc1plus_spec = CC1PLUS_SPEC;
521 static char *signed_char_spec = SIGNED_CHAR_SPEC;
522 static char *asm_spec = ASM_SPEC;
523 static char *asm_final_spec = ASM_FINAL_SPEC;
524 static char *link_spec = LINK_SPEC;
525 static char *lib_spec = LIB_SPEC;
526 static char *libgcc_spec = LIBGCC_SPEC;
527 static char *endfile_spec = ENDFILE_SPEC;
528 static char *startfile_spec = STARTFILE_SPEC;
529 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
530 static char *multilib_select = MULTILIB_SELECT;
532 /* This defines which switch letters take arguments. */
534 #ifndef SWITCH_TAKES_ARG
535 #define SWITCH_TAKES_ARG(CHAR) \
536 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
537 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
538 || (CHAR) == 'I' || (CHAR) == 'm' \
539 || (CHAR) == 'L' || (CHAR) == 'A')
542 /* This defines which multi-letter switches take arguments. */
544 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
545 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
546 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
547 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
548 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
549 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
550 || !strcmp (STR, "isystem"))
552 #ifndef WORD_SWITCH_TAKES_ARG
553 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
556 /* Record the mapping from file suffixes for compilation specs. */
560 char *suffix; /* Use this compiler for input files
561 whose names end in this suffix. */
563 char *spec[4]; /* To use this compiler, concatenate these
564 specs and pass to do_spec. */
567 /* Pointer to a vector of `struct compiler' that gives the spec for
568 compiling a file, based on its suffix.
569 A file that does not end in any of these suffixes will be passed
570 unchanged to the loader and nothing else will be done to it.
572 An entry containing two 0s is used to terminate the vector.
574 If multiple entries match a file, the last matching one is used. */
576 static struct compiler *compilers;
578 /* Number of entries in `compilers', not counting the null terminator. */
580 static int n_compilers;
582 /* The default list of file name suffixes and their compilation specs. */
584 static struct compiler default_compilers[] =
586 {".F", "@f77-cpp-output"},
588 /* For f77 we want -traditional to avoid errors with, for
589 instance, mismatched '. Also, we avoid unpleasant surprises
590 with substitution of names not prefixed by `_ by' using %P
591 rather than %p (although this isn't consistent with SGI and
592 Sun f77, at least) so you test `__unix' rather than `unix'.
593 -D_LANGUAGE_FORTRAN is used by some compilers like SGI and
594 might as well be in there. */
595 "cpp -lang-c -P %{nostdinc*} %{C} %{v} %{A*} %{I*} %I\
596 %{C:%{!E:%eGNU C does not support -C without using -E}}\
597 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
598 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
599 %{!undef:%P} -D_LANGUAGE_FORTRAN %{trigraphs} \
600 %c %{O*:-D__OPTIMIZE__} -traditional %{ftraditional:-traditional}\
601 %{traditional-cpp:-traditional}\
602 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
603 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
604 "f771 %{!pipe:%g.i} \
605 %{!Q:-quiet} -dumpbase %b.F %{d*} %{m*} %{a}\
606 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
607 %{v:-version -fversion} %{f*}\
608 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
609 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
610 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{keep-local-as-symbols:-L} \
611 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
612 %{!pipe:%g.s} %A\n }"},
616 %{!Q:-quiet} -dumpbase %b.f %{d*} %{m*} %{a}\
617 %{g*} %{O*} %{W*} %{w} %{pedantic*} \
618 %{v:-version -fversion} %{f*}\
619 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
620 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
621 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %{keep-local-as-symbols:-L} \
622 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 %{!pipe:%g.s} %A\n }"},
626 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
627 %{C:%{!E:%eGNU C does not support -C without using -E}}\
628 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
629 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
630 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
631 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
632 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
633 %{traditional-cpp:-traditional}\
634 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
635 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
636 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
637 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
638 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
639 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
641 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
642 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
643 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
644 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
645 %{!pipe:%g.s} %A\n }}}}"},
647 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
648 %{C:%{!E:%eGNU C does not support -C without using -E}}\
649 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
650 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
651 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
652 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
653 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
654 %{traditional-cpp:-traditional}\
655 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
657 %{!E:%e-E required when input is from standard input}"},
658 {".m", "@objective-c"},
660 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
661 %{C:%{!E:%eGNU C does not support -C without using -E}}\
662 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
663 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
664 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
665 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
666 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
667 %{traditional-cpp:-traditional}\
668 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
669 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
670 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
671 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
672 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
673 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
674 -lang-objc %{gen-decls} \
676 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
677 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
678 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
679 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
680 %{!pipe:%g.s} %A\n }}}}"},
683 "%{!E:%eCompilation of header file requested} \
684 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
685 %{C:%{!E:%eGNU C does not support -C without using -E}}\
686 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
687 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
688 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
689 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
690 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
691 %{traditional-cpp:-traditional}\
692 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
697 "cpp -lang-chill %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
698 %{C:%{!E:%eGNU CHILL does not support -C without using -E}}\
699 -undef -D__GNUCHILL__=%v1 -D__GNUC_MINOR__=%v2\
700 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
701 %{traditional-cpp:-traditional} %{!undef:%{!ansi:%p} %P} %{trigraphs}\
702 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
703 %i %{!E:%g.i}%{E:%W{o*}} \n",
704 "%{!E:cc1chill %g.i %1 \
705 %{!Q:-quiet} -dumpbase %b.ch %{d*} %{m*} %{a}\
706 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{itu} \
707 %{v:-version} %{pg:-p} %{p} %{f*} %{I*} \
709 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
710 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
711 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y %{keep-local-as-symbols:-L} \
712 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
713 %{!pipe:%g.s} %A\n }}"},
720 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
721 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
722 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
723 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
724 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
725 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
726 %{traditional-cpp:-traditional} %{trigraphs}\
727 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
728 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
729 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
730 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
731 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
732 %{traditional} %{v:-version} %{pg:-p} %{p}\
733 %{f*} %{+e*} %{aux-info*}\
734 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
735 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
736 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
737 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
738 %{!pipe:%g.s} %A\n }}}}"},
739 {".i", "@cpp-output"},
741 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
742 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
743 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
745 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
746 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
747 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
748 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
749 %{!pipe:%g.s} %A\n }}}}"},
750 {".ii", "@c++-cpp-output"},
752 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
753 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
754 %{traditional} %{v:-version} %{pg:-p} %{p}\
755 %{f*} %{+e*} %{aux-info*}\
756 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
757 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
758 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
759 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
760 %{!pipe:%g.s} %A\n }}}}"},
761 {".s", "@assembler"},
763 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
764 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
766 {".S", "@assembler-with-cpp"},
767 {"@assembler-with-cpp",
768 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
769 %{C:%{!E:%eGNU C does not support -C without using -E}}\
770 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
771 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
772 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
773 %{traditional-cpp:-traditional}\
774 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
775 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
776 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
777 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
778 %{!pipe:%g.s} %A\n }}}}"},
782 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
783 -dumpbase %{.adb:%b.adb}%{.ads:%b.ads}\
784 %{g*} %{O*} %{p} %{pg:-p} %{f*}\
786 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
787 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
788 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
789 %{c:%W{o*}%{!o*:-o %w%b.%O}}\
790 %{!c:-o %d%w%u.%O} %{!pipe:%g.s} %A\n}}}}}} "},
791 /* Mark end of table */
795 /* Number of elements in default_compilers, not counting the terminator. */
797 static int n_default_compilers
798 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
800 /* Here is the spec for running the linker, after compiling all files. */
802 /* -u* was put back because both BSD and SysV seem to support it. */
803 /* %{static:} simply prevents an error message if the target machine
804 doesn't handle -static. */
805 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
806 scripts which exist in user specified directories, or in standard
808 #ifdef LINK_LIBGCC_SPECIAL
809 /* Don't generate -L options. */
810 static char *link_command_spec = "\
812 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
813 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
814 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
815 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
818 static char *link_command_spec = "\
820 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
821 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
822 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
823 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
826 /* A vector of options to give to the linker.
827 These options are accumulated by %x,
828 and substituted into the linker command with %X. */
829 static int n_linker_options;
830 static char **linker_options;
832 /* A vector of options to give to the assembler.
833 These options are accumulated by -Wa,
834 and substituted into the assembler command with %Y. */
835 static int n_assembler_options;
836 static char **assembler_options;
838 /* A vector of options to give to the preprocessor.
839 These options are accumulated by -Wp,
840 and substituted into the preprocessor command with %Z. */
841 static int n_preprocessor_options;
842 static char **preprocessor_options;
844 /* Define how to map long options into short ones. */
846 /* This structure describes one mapping. */
849 /* The long option's name. */
851 /* The equivalent short option. */
853 /* Argument info. A string of flag chars; NULL equals no options.
854 a => argument required.
855 o => argument optional.
856 j => join argument to equivalent, making one word.
857 * => require other text after NAME as an argument. */
861 /* This is the table of mappings. Mappings are tried sequentially
862 for each option encountered; the first one that matches, wins. */
864 struct option_map option_map[] =
866 {"--all-warnings", "-Wall", 0},
867 {"--ansi", "-ansi", 0},
868 {"--assemble", "-S", 0},
869 {"--assert", "-A", "a"},
870 {"--comments", "-C", 0},
871 {"--compile", "-c", 0},
872 {"--debug", "-g", "oj"},
873 {"--define-macro", "-D", "a"},
874 {"--dependencies", "-M", 0},
875 {"--dump", "-d", "a"},
876 {"--dumpbase", "-dumpbase", "a"},
877 {"--entry", "-e", 0},
878 {"--extra-warnings", "-W", 0},
879 {"--for-assembler", "-Wa", "a"},
880 {"--for-linker", "-Xlinker", "a"},
881 {"--force-link", "-u", "a"},
882 {"--imacros", "-imacros", "a"},
883 {"--include", "-include", "a"},
884 {"--include-barrier", "-I-", 0},
885 {"--include-directory", "-I", "a"},
886 {"--include-directory-after", "-idirafter", "a"},
887 {"--include-prefix", "-iprefix", "a"},
888 {"--include-with-prefix", "-iwithprefix", "a"},
889 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
890 {"--include-with-prefix-after", "-iwithprefix", "a"},
891 {"--language", "-x", "a"},
892 {"--library-directory", "-L", "a"},
893 {"--machine", "-m", "aj"},
894 {"--machine-", "-m", "*j"},
895 {"--no-line-commands", "-P", 0},
896 {"--no-precompiled-includes", "-noprecomp", 0},
897 {"--no-standard-includes", "-nostdinc", 0},
898 {"--no-standard-libraries", "-nostdlib", 0},
899 {"--no-warnings", "-w", 0},
900 {"--optimize", "-O", "oj"},
901 {"--output", "-o", "a"},
902 {"--pedantic", "-pedantic", 0},
903 {"--pedantic-errors", "-pedantic-errors", 0},
904 {"--pipe", "-pipe", 0},
905 {"--prefix", "-B", "a"},
906 {"--preprocess", "-E", 0},
907 {"--print-file-name", "-print-file-name=", "aj"},
908 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
909 {"--print-missing-file-dependencies", "-MG", 0},
910 {"--print-multi-lib", "-print-multi-lib", 0},
911 {"--print-multi-directory", "-print-multi-directory", 0},
912 {"--print-prog-name", "-print-prog-name=", "aj"},
913 {"--profile", "-p", 0},
914 {"--profile-blocks", "-a", 0},
915 {"--quiet", "-q", 0},
916 {"--save-temps", "-save-temps", 0},
917 {"--shared", "-shared", 0},
918 {"--silent", "-q", 0},
919 {"--static", "-static", 0},
920 {"--symbolic", "-symbolic", 0},
921 {"--target", "-b", "a"},
922 {"--trace-includes", "-H", 0},
923 {"--traditional", "-traditional", 0},
924 {"--traditional-cpp", "-traditional-cpp", 0},
925 {"--trigraphs", "-trigraphs", 0},
926 {"--undefine-macro", "-U", "a"},
927 {"--use-version", "-V", "a"},
928 {"--user-dependencies", "-MM", 0},
929 {"--verbose", "-v", 0},
930 {"--version", "-dumpversion", 0},
931 {"--warn-", "-W", "*j"},
932 {"--write-dependencies", "-MD", 0},
933 {"--write-user-dependencies", "-MMD", 0},
937 /* Translate the options described by *ARGCP and *ARGVP.
938 Make a new vector and store it back in *ARGVP,
939 and store its length in *ARGVC. */
942 translate_options (argcp, argvp)
948 char **argv = *argvp;
949 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
953 newv[newindex++] = argv[i++];
957 /* Translate -- options. */
958 if (argv[i][0] == '-' && argv[i][1] == '-')
960 /* Find a mapping that applies to this option. */
961 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
963 int optlen = strlen (option_map[j].name);
964 int arglen = strlen (argv[i]);
965 int complen = arglen > optlen ? optlen : arglen;
966 char *arginfo = option_map[j].arg_info;
971 if (!strncmp (argv[i], option_map[j].name, complen))
978 k < sizeof (option_map) / sizeof (option_map[0]);
980 if (strlen (option_map[k].name) >= arglen
981 && !strncmp (argv[i], option_map[k].name, arglen))
983 error ("Ambiguous abbreviation %s", argv[i]);
987 if (k != sizeof (option_map) / sizeof (option_map[0]))
993 /* If the option has an argument, accept that. */
994 if (argv[i][optlen] == '=')
995 arg = argv[i] + optlen + 1;
997 /* If this mapping requires extra text at end of name,
998 accept that as "argument". */
999 else if (index (arginfo, '*') != 0)
1000 arg = argv[i] + optlen;
1002 /* Otherwise, extra text at end means mismatch.
1003 Try other mappings. */
1008 else if (index (arginfo, '*') != 0)
1010 error ("Incomplete `%s' option", option_map[j].name);
1014 /* Handle arguments. */
1015 if (index (arginfo, 'a') != 0)
1021 error ("Missing argument to `%s' option",
1022 option_map[j].name);
1029 else if (index (arginfo, '*') != 0)
1031 else if (index (arginfo, 'o') == 0)
1034 error ("Extraneous argument to `%s' option",
1035 option_map[j].name);
1039 /* Store the translation as one argv elt or as two. */
1040 if (arg != 0 && index (arginfo, 'j') != 0)
1041 newv[newindex++] = concat (option_map[j].equivalent, arg);
1044 newv[newindex++] = option_map[j].equivalent;
1045 newv[newindex++] = arg;
1048 newv[newindex++] = option_map[j].equivalent;
1056 /* Handle old-fashioned options--just copy them through,
1057 with their arguments. */
1058 else if (argv[i][0] == '-')
1060 char *p = argv[i] + 1;
1064 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1065 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1066 else if (WORD_SWITCH_TAKES_ARG (p))
1067 nskip += WORD_SWITCH_TAKES_ARG (p);
1068 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1071 else if (! strcmp (p, "Xlinker"))
1074 /* Watch out for an option at the end of the command line that
1075 is missing arguments, and avoid skipping past the end of the
1077 if (nskip + i > argc)
1082 newv[newindex++] = argv[i++];
1087 /* Ordinary operands, or +e options. */
1088 newv[newindex++] = argv[i++];
1097 /* Read compilation specs from a file named FILENAME,
1098 replacing the default ones.
1100 A suffix which starts with `*' is a definition for
1101 one of the machine-specific sub-specs. The "suffix" should be
1102 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1103 The corresponding spec is stored in asm_spec, etc.,
1104 rather than in the `compilers' vector.
1106 Anything invalid in the file is a fatal error. */
1109 read_specs (filename)
1114 struct stat statbuf;
1119 fprintf (stderr, "Reading specs from %s\n", filename);
1121 /* Open and stat the file. */
1122 desc = open (filename, O_RDONLY, 0);
1124 pfatal_with_name (filename);
1125 if (stat (filename, &statbuf) < 0)
1126 pfatal_with_name (filename);
1128 /* Read contents of file into BUFFER. */
1129 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1130 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1132 pfatal_with_name (filename);
1133 buffer[readlen] = 0;
1136 /* Scan BUFFER for specs, putting them in the vector. */
1142 char *in, *out, *p1, *p2;
1144 /* Advance P in BUFFER to the next nonblank nocomment line. */
1145 p = skip_whitespace (p);
1149 /* Find the colon that should end the suffix. */
1151 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1152 /* The colon shouldn't be missing. */
1154 fatal ("specs file malformed after %d characters", p1 - buffer);
1155 /* Skip back over trailing whitespace. */
1157 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1158 /* Copy the suffix to a string. */
1159 suffix = save_string (p, p2 - p);
1160 /* Find the next line. */
1161 p = skip_whitespace (p1 + 1);
1163 fatal ("specs file malformed after %d characters", p - buffer);
1165 /* Find next blank line. */
1166 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1167 /* Specs end at the blank line and do not include the newline. */
1168 spec = save_string (p, p1 - p);
1171 /* Delete backslash-newline sequences from the spec. */
1176 if (in[0] == '\\' && in[1] == '\n')
1178 else if (in[0] == '#')
1180 while (*in && *in != '\n') in++;
1187 if (suffix[0] == '*')
1189 if (! strcmp (suffix, "*link_command"))
1190 link_command_spec = spec;
1192 set_spec (suffix + 1, spec);
1196 /* Add this pair to the vector. */
1198 = ((struct compiler *)
1199 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1200 compilers[n_compilers].suffix = suffix;
1201 bzero ((char *) compilers[n_compilers].spec,
1202 sizeof compilers[n_compilers].spec);
1203 compilers[n_compilers].spec[0] = spec;
1205 bzero ((char *) &compilers[n_compilers],
1206 sizeof compilers[n_compilers]);
1210 link_command_spec = spec;
1213 if (link_command_spec == 0)
1214 fatal ("spec file has no spec for linking");
1223 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1224 be considered whitespace. */
1225 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1227 else if (*p == '\n' || *p == ' ' || *p == '\t')
1231 while (*p != '\n') p++;
1241 /* Structure to keep track of the specs that have been defined so far. These
1242 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1246 char *name; /* Name of the spec. */
1247 char *spec; /* The spec itself. */
1248 struct spec_list *next; /* Next spec in linked list. */
1251 /* List of specs that have been defined so far. */
1253 static struct spec_list *specs = (struct spec_list *) 0;
1255 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1256 removed; If the spec starts with a + then SPEC is added to the end of the
1260 set_spec (name, spec)
1264 struct spec_list *sl;
1267 /* See if the spec already exists */
1268 for (sl = specs; sl; sl = sl->next)
1269 if (strcmp (sl->name, name) == 0)
1274 /* Not found - make it */
1275 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1276 sl->name = save_string (name, strlen (name));
1277 sl->spec = save_string ("", 0);
1282 old_spec = sl->spec;
1283 if (name && spec[0] == '+' && isspace (spec[1]))
1284 sl->spec = concat (old_spec, spec + 1);
1286 sl->spec = save_string (spec, strlen (spec));
1288 if (! strcmp (name, "asm"))
1289 asm_spec = sl->spec;
1290 else if (! strcmp (name, "asm_final"))
1291 asm_final_spec = sl->spec;
1292 else if (! strcmp (name, "cc1"))
1293 cc1_spec = sl->spec;
1294 else if (! strcmp (name, "cc1plus"))
1295 cc1plus_spec = sl->spec;
1296 else if (! strcmp (name, "cpp"))
1297 cpp_spec = sl->spec;
1298 else if (! strcmp (name, "endfile"))
1299 endfile_spec = sl->spec;
1300 else if (! strcmp (name, "lib"))
1301 lib_spec = sl->spec;
1302 else if (! strcmp (name, "libgcc"))
1303 libgcc_spec = sl->spec;
1304 else if (! strcmp (name, "link"))
1305 link_spec = sl->spec;
1306 else if (! strcmp (name, "predefines"))
1307 cpp_predefines = sl->spec;
1308 else if (! strcmp (name, "signed_char"))
1309 signed_char_spec = sl->spec;
1310 else if (! strcmp (name, "startfile"))
1311 startfile_spec = sl->spec;
1312 else if (! strcmp (name, "switches_need_spaces"))
1313 switches_need_spaces = sl->spec;
1314 else if (! strcmp (name, "cross_compile"))
1315 cross_compile = atoi (sl->spec);
1316 else if (! strcmp (name, "multilib"))
1317 multilib_select = sl->spec;
1318 /* Free the old spec */
1323 /* Accumulate a command (program name and args), and run it. */
1325 /* Vector of pointers to arguments in the current line of specifications. */
1327 static char **argbuf;
1329 /* Number of elements allocated in argbuf. */
1331 static int argbuf_length;
1333 /* Number of elements in argbuf currently in use (containing args). */
1335 static int argbuf_index;
1337 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1338 temp file. Used only if MKTEMP_EACH_FILE. */
1340 static struct temp_name {
1341 char *suffix; /* suffix associated with the code. */
1342 int length; /* strlen (suffix). */
1343 int unique; /* Indicates whether %g or %u/%U was used. */
1344 char *filename; /* associated filename. */
1345 int filename_length; /* strlen (filename). */
1346 struct temp_name *next;
1349 /* Number of commands executed so far. */
1351 static int execution_count;
1353 /* Number of commands that exited with a signal. */
1355 static int signal_count;
1357 /* Name with which this program was invoked. */
1359 static char *programname;
1361 /* Structures to keep track of prefixes to try when looking for files. */
1365 char *prefix; /* String to prepend to the path. */
1366 struct prefix_list *next; /* Next in linked list. */
1367 int require_machine_suffix; /* Don't use without machine_suffix. */
1368 /* 2 means try both machine_suffix and just_machine_suffix. */
1369 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1374 struct prefix_list *plist; /* List of prefixes to try */
1375 int max_len; /* Max length of a prefix in PLIST */
1376 char *name; /* Name of this list (used in config stuff) */
1379 /* List of prefixes to try when looking for executables. */
1381 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1383 /* List of prefixes to try when looking for startup (crt0) files. */
1385 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1387 /* List of prefixes to try when looking for include files. */
1389 static struct path_prefix include_prefixes = { 0, 0, "include" };
1391 /* Suffix to attach to directories searched for commands.
1392 This looks like `MACHINE/VERSION/'. */
1394 static char *machine_suffix = 0;
1396 /* Suffix to attach to directories searched for commands.
1397 This is just `MACHINE/'. */
1399 static char *just_machine_suffix = 0;
1401 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1403 static char *gcc_exec_prefix;
1405 /* Default prefixes to attach to command names. */
1407 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1408 #undef MD_EXEC_PREFIX
1409 #undef MD_STARTFILE_PREFIX
1410 #undef MD_STARTFILE_PREFIX_1
1413 #ifndef STANDARD_EXEC_PREFIX
1414 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1415 #endif /* !defined STANDARD_EXEC_PREFIX */
1417 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1418 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1419 #ifdef MD_EXEC_PREFIX
1420 static char *md_exec_prefix = MD_EXEC_PREFIX;
1423 #ifndef STANDARD_STARTFILE_PREFIX
1424 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1425 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1427 #ifdef MD_STARTFILE_PREFIX
1428 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1430 #ifdef MD_STARTFILE_PREFIX_1
1431 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1433 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1434 static char *standard_startfile_prefix_1 = "/lib/";
1435 static char *standard_startfile_prefix_2 = "/usr/lib/";
1437 #ifndef TOOLDIR_BASE_PREFIX
1438 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1440 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1441 static char *tooldir_prefix;
1443 /* Subdirectory to use for locating libraries. Set by
1444 set_multilib_dir based on the compilation options. */
1446 static char *multilib_dir;
1448 /* Clear out the vector of arguments (after a command is executed). */
1456 /* Add one argument to the vector at the end.
1457 This is done when a space is seen or at the end of the line.
1458 If DELETE_ALWAYS is nonzero, the arg is a filename
1459 and the file should be deleted eventually.
1460 If DELETE_FAILURE is nonzero, the arg is a filename
1461 and the file should be deleted if this compilation fails. */
1464 store_arg (arg, delete_always, delete_failure)
1466 int delete_always, delete_failure;
1468 if (argbuf_index + 1 == argbuf_length)
1470 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1473 argbuf[argbuf_index++] = arg;
1474 argbuf[argbuf_index] = 0;
1476 if (delete_always || delete_failure)
1477 record_temp_file (arg, delete_always, delete_failure);
1480 /* Record the names of temporary files we tell compilers to write,
1481 and delete them at the end of the run. */
1483 /* This is the common prefix we use to make temp file names.
1484 It is chosen once for each run of this program.
1485 It is substituted into a spec by %g.
1486 Thus, all temp file names contain this prefix.
1487 In practice, all temp file names start with this prefix.
1489 This prefix comes from the envvar TMPDIR if it is defined;
1490 otherwise, from the P_tmpdir macro if that is defined;
1491 otherwise, in /usr/tmp or /tmp. */
1493 static char *temp_filename;
1495 /* Length of the prefix. */
1497 static int temp_filename_length;
1499 /* Define the list of temporary files to delete. */
1504 struct temp_file *next;
1507 /* Queue of files to delete on success or failure of compilation. */
1508 static struct temp_file *always_delete_queue;
1509 /* Queue of files to delete on failure of compilation. */
1510 static struct temp_file *failure_delete_queue;
1512 /* Record FILENAME as a file to be deleted automatically.
1513 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1514 otherwise delete it in any case.
1515 FAIL_DELETE nonzero means delete it if a compilation step fails;
1516 otherwise delete it in any case. */
1519 record_temp_file (filename, always_delete, fail_delete)
1524 register char *name;
1525 name = xmalloc (strlen (filename) + 1);
1526 strcpy (name, filename);
1530 register struct temp_file *temp;
1531 for (temp = always_delete_queue; temp; temp = temp->next)
1532 if (! strcmp (name, temp->name))
1534 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1535 temp->next = always_delete_queue;
1537 always_delete_queue = temp;
1543 register struct temp_file *temp;
1544 for (temp = failure_delete_queue; temp; temp = temp->next)
1545 if (! strcmp (name, temp->name))
1547 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1548 temp->next = failure_delete_queue;
1550 failure_delete_queue = temp;
1555 /* Delete all the temporary files whose names we previously recorded. */
1558 delete_if_ordinary (name)
1565 printf ("Delete %s? (y or n) ", name);
1569 while ((c = getchar ()) != '\n' && c != EOF) ;
1570 if (i == 'y' || i == 'Y')
1572 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1573 if (unlink (name) < 0)
1575 perror_with_name (name);
1579 delete_temp_files ()
1581 register struct temp_file *temp;
1583 for (temp = always_delete_queue; temp; temp = temp->next)
1584 delete_if_ordinary (temp->name);
1585 always_delete_queue = 0;
1588 /* Delete all the files to be deleted on error. */
1591 delete_failure_queue ()
1593 register struct temp_file *temp;
1595 for (temp = failure_delete_queue; temp; temp = temp->next)
1596 delete_if_ordinary (temp->name);
1600 clear_failure_queue ()
1602 failure_delete_queue = 0;
1605 /* Compute a string to use as the base of all temporary file names.
1606 It is substituted for %g. */
1609 choose_temp_base_try (try, base)
1616 else if (try == (char *)0)
1618 else if (access (try, R_OK | W_OK) != 0)
1631 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1632 base = choose_temp_base_try (getenv ("TMP"), base);
1633 base = choose_temp_base_try (getenv ("TEMP"), base);
1636 base = choose_temp_base_try (P_tmpdir, base);
1639 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1640 dir_separator_str, "tmp"),
1642 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1644 /* If all else fails, use the current directory! */
1645 if (base == (char *)0) base = concat(".", dir_separator_str);
1647 len = strlen (base);
1648 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1650 strcpy (temp_filename, base);
1651 if (len > 0 && temp_filename[len-1] != '/'
1652 && temp_filename[len-1] != DIR_SEPARATOR)
1653 temp_filename[len++] = DIR_SEPARATOR;
1654 strcpy (temp_filename + len, "ccXXXXXX");
1656 mktemp (temp_filename);
1657 temp_filename_length = strlen (temp_filename);
1658 if (temp_filename_length == 0)
1663 /* Routine to add variables to the environment. We do this to pass
1664 the pathname of the gcc driver, and the directories search to the
1665 collect2 program, which is being run as ld. This way, we can be
1666 sure of executing the right compiler when collect2 wants to build
1667 constructors and destructors. Since the environment variables we
1668 use come from an obstack, we don't have to worry about allocating
1677 #ifndef VMS /* nor about VMS */
1679 extern char **environ;
1680 char **old_environ = environ;
1684 int str_len = strlen (str);
1688 while ((ch = *p++) != '\0' && ch != '=')
1694 /* Search for replacing an existing environment variable, and
1695 count the number of total environment variables. */
1696 for (envp = old_environ; *envp; envp++)
1699 if (!strncmp (str, *envp, name_len))
1706 /* Add a new environment variable */
1707 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1709 bcopy ((char *) old_environ, (char *) (environ + 1),
1710 sizeof (char *) * (num_envs+1));
1715 #endif /* HAVE_PUTENV */
1718 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1721 putenv_from_prefixes (paths, env_var)
1722 struct path_prefix *paths;
1725 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1727 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1728 int first_time = TRUE;
1729 struct prefix_list *pprefix;
1731 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1733 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1735 int len = strlen (pprefix->prefix);
1738 && is_directory (pprefix->prefix, machine_suffix, 0))
1741 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1744 obstack_grow (&collect_obstack, pprefix->prefix, len);
1745 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1748 if (just_machine_suffix
1749 && pprefix->require_machine_suffix == 2
1750 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1753 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1756 obstack_grow (&collect_obstack, pprefix->prefix, len);
1757 obstack_grow (&collect_obstack, just_machine_suffix,
1761 if (!pprefix->require_machine_suffix)
1764 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1767 obstack_grow (&collect_obstack, pprefix->prefix, len);
1770 obstack_1grow (&collect_obstack, '\0');
1771 putenv (obstack_finish (&collect_obstack));
1775 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1776 access to check permissions.
1777 Return 0 if not found, otherwise return its name, allocated with malloc. */
1780 find_a_file (pprefix, name, mode)
1781 struct path_prefix *pprefix;
1786 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1787 struct prefix_list *pl;
1788 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1791 len += strlen (machine_suffix);
1793 temp = xmalloc (len);
1795 /* Determine the filename to execute (special case for absolute paths). */
1797 if (*name == '/' || *name == DIR_SEPARATOR)
1799 if (access (name, mode))
1801 strcpy (temp, name);
1806 for (pl = pprefix->plist; pl; pl = pl->next)
1810 /* Some systems have a suffix for executable files.
1811 So try appending that first. */
1812 if (file_suffix[0] != 0)
1814 strcpy (temp, pl->prefix);
1815 strcat (temp, machine_suffix);
1816 strcat (temp, name);
1817 strcat (temp, file_suffix);
1818 if (access (temp, mode) == 0)
1820 if (pl->used_flag_ptr != 0)
1821 *pl->used_flag_ptr = 1;
1826 /* Now try just the name. */
1827 strcpy (temp, pl->prefix);
1828 strcat (temp, machine_suffix);
1829 strcat (temp, name);
1830 if (access (temp, mode) == 0)
1832 if (pl->used_flag_ptr != 0)
1833 *pl->used_flag_ptr = 1;
1838 /* Certain prefixes are tried with just the machine type,
1839 not the version. This is used for finding as, ld, etc. */
1840 if (just_machine_suffix && pl->require_machine_suffix == 2)
1842 /* Some systems have a suffix for executable files.
1843 So try appending that first. */
1844 if (file_suffix[0] != 0)
1846 strcpy (temp, pl->prefix);
1847 strcat (temp, just_machine_suffix);
1848 strcat (temp, name);
1849 strcat (temp, file_suffix);
1850 if (access (temp, mode) == 0)
1852 if (pl->used_flag_ptr != 0)
1853 *pl->used_flag_ptr = 1;
1858 strcpy (temp, pl->prefix);
1859 strcat (temp, just_machine_suffix);
1860 strcat (temp, name);
1861 if (access (temp, mode) == 0)
1863 if (pl->used_flag_ptr != 0)
1864 *pl->used_flag_ptr = 1;
1869 /* Certain prefixes can't be used without the machine suffix
1870 when the machine or version is explicitly specified. */
1871 if (!pl->require_machine_suffix)
1873 /* Some systems have a suffix for executable files.
1874 So try appending that first. */
1875 if (file_suffix[0] != 0)
1877 strcpy (temp, pl->prefix);
1878 strcat (temp, name);
1879 strcat (temp, file_suffix);
1880 if (access (temp, mode) == 0)
1882 if (pl->used_flag_ptr != 0)
1883 *pl->used_flag_ptr = 1;
1888 strcpy (temp, pl->prefix);
1889 strcat (temp, name);
1890 if (access (temp, mode) == 0)
1892 if (pl->used_flag_ptr != 0)
1893 *pl->used_flag_ptr = 1;
1903 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1904 at the start of the list, otherwise it goes at the end.
1906 If WARN is nonzero, we will warn if no file is found
1907 through this prefix. WARN should point to an int
1908 which will be set to 1 if this entry is used.
1910 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1911 the complete value of machine_suffix.
1912 2 means try both machine_suffix and just_machine_suffix. */
1915 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1916 struct path_prefix *pprefix;
1919 int require_machine_suffix;
1922 struct prefix_list *pl, **prev;
1925 if (!first && pprefix->plist)
1927 for (pl = pprefix->plist; pl->next; pl = pl->next)
1932 prev = &pprefix->plist;
1934 /* Keep track of the longest prefix */
1936 len = strlen (prefix);
1937 if (len > pprefix->max_len)
1938 pprefix->max_len = len;
1940 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1941 pl->prefix = save_string (prefix, len);
1942 pl->require_machine_suffix = require_machine_suffix;
1943 pl->used_flag_ptr = warn;
1950 pl->next = (struct prefix_list *) 0;
1954 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1957 unused_prefix_warnings (pprefix)
1958 struct path_prefix *pprefix;
1960 struct prefix_list *pl = pprefix->plist;
1964 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1966 error ("file path prefix `%s' never used",
1968 /* Prevent duplicate warnings. */
1969 *pl->used_flag_ptr = 1;
1975 /* Get rid of all prefixes built up so far in *PLISTP. */
1978 free_path_prefix (pprefix)
1979 struct path_prefix *pprefix;
1981 struct prefix_list *pl = pprefix->plist;
1982 struct prefix_list *temp;
1988 free (temp->prefix);
1989 free ((char *) temp);
1991 pprefix->plist = (struct prefix_list *) 0;
1994 /* stdin file number. */
1995 #define STDIN_FILE_NO 0
1997 /* stdout file number. */
1998 #define STDOUT_FILE_NO 1
2000 /* value of `pipe': port index for reading. */
2003 /* value of `pipe': port index for writing. */
2004 #define WRITE_PORT 1
2006 /* Pipe waiting from last process, to be used as input for the next one.
2007 Value is STDIN_FILE_NO if no pipe is waiting
2008 (i.e. the next command is the first of a group). */
2010 static int last_pipe_input;
2012 /* Fork one piped subcommand. FUNC is the system call to use
2013 (either execv or execvp). ARGV is the arg vector to use.
2014 NOT_LAST is nonzero if this is not the last subcommand
2015 (i.e. its output should be piped to the next one.) */
2019 #include <process.h>
2021 pexecute (search_flag, program, argv, not_last)
2028 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
2032 int i, el = search_flag ? 0 : 4;
2034 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
2035 rf = scmd + strlen(program) + 2 + el;
2036 sprintf (scmd, "%s%s @%s.gp", program,
2037 (search_flag ? "" : ".exe"), temp_filename);
2038 argfile = fopen (rf, "w");
2040 pfatal_with_name (rf);
2042 for (i=1; argv[i]; i++)
2045 for (cp = argv[i]; *cp; cp++)
2047 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2048 fputc ('\\', argfile);
2049 fputc (*cp, argfile);
2051 fputc ('\n', argfile);
2062 perror_exec (program);
2063 return MIN_FATAL_STATUS << 8;
2070 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2073 pexecute (search_flag, program, argv, not_last)
2079 int (*func)() = (search_flag ? execv : execvp);
2082 int input_desc = last_pipe_input;
2083 int output_desc = STDOUT_FILE_NO;
2084 int retries, sleep_interval;
2086 /* If this isn't the last process, make a pipe for its output,
2087 and record it as waiting to be the input to the next process. */
2091 if (pipe (pdes) < 0)
2092 pfatal_with_name ("pipe");
2093 output_desc = pdes[WRITE_PORT];
2094 last_pipe_input = pdes[READ_PORT];
2097 last_pipe_input = STDIN_FILE_NO;
2099 /* Fork a subprocess; wait and retry if it fails. */
2101 for (retries = 0; retries < 4; retries++)
2106 sleep (sleep_interval);
2107 sleep_interval *= 2;
2114 pfatal_with_name ("fork");
2116 pfatal_with_name ("vfork");
2122 /* Move the input and output pipes into place, if nec. */
2123 if (input_desc != STDIN_FILE_NO)
2125 close (STDIN_FILE_NO);
2129 if (output_desc != STDOUT_FILE_NO)
2131 close (STDOUT_FILE_NO);
2133 close (output_desc);
2136 /* Close the parent's descs that aren't wanted here. */
2137 if (last_pipe_input != STDIN_FILE_NO)
2138 close (last_pipe_input);
2140 /* Exec the program. */
2141 (*func) (program, argv);
2142 perror_exec (program);
2148 /* In the parent, after forking.
2149 Close the descriptors that we made for this child. */
2150 if (input_desc != STDIN_FILE_NO)
2152 if (output_desc != STDOUT_FILE_NO)
2153 close (output_desc);
2155 /* Return child's process number. */
2160 #endif /* not __MSDOS__ and not OS2 and not WINNT */
2162 #if defined(OS2) || defined(WINNT)
2166 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2167 to remove the outermost set of double quotes from all arguments. */
2175 for (i = 1; argvec[i] != 0; i++)
2178 char *temp, *newtemp;
2181 len = strlen (temp);
2182 for (j = 0; j < len; j++)
2186 newtemp = xmalloc (len + 2);
2187 strncpy (newtemp, temp, j);
2189 strncpy (&newtemp [j+1], &temp [j], len-j);
2190 newtemp [len+1] = 0;
2201 return (const char* const*) argvec;
2204 #define FIX_ARGV(a) fix_argv(a)
2208 #define FIX_ARGV(a) a
2213 pexecute (search_flag, program, argv, not_last)
2219 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2221 #endif /* OS2 or WINNT */
2224 /* Execute the command specified by the arguments on the current line of spec.
2225 When using pipes, this includes several piped-together commands
2226 with `|' between them.
2228 Return 0 if successful, -1 if failed. */
2234 int n_commands; /* # of command. */
2238 char *prog; /* program name. */
2239 char **argv; /* vector of args. */
2240 int pid; /* pid of process for this command. */
2243 struct command *commands; /* each command buffer with above info. */
2245 /* Count # of piped commands. */
2246 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2247 if (strcmp (argbuf[i], "|") == 0)
2250 /* Get storage for each command. */
2252 = (struct command *) alloca (n_commands * sizeof (struct command));
2254 /* Split argbuf into its separate piped processes,
2255 and record info about each one.
2256 Also search for the programs that are to be run. */
2258 commands[0].prog = argbuf[0]; /* first command. */
2259 commands[0].argv = &argbuf[0];
2260 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2262 commands[0].argv[0] = string;
2264 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2265 if (strcmp (argbuf[i], "|") == 0)
2266 { /* each command. */
2268 fatal ("-pipe not supported under MS-DOS");
2270 argbuf[i] = 0; /* termination of command args. */
2271 commands[n_commands].prog = argbuf[i + 1];
2272 commands[n_commands].argv = &argbuf[i + 1];
2273 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2275 commands[n_commands].argv[0] = string;
2279 argbuf[argbuf_index] = 0;
2281 /* If -v, print what we are about to do, and maybe query. */
2285 /* Print each piped command as a separate line. */
2286 for (i = 0; i < n_commands ; i++)
2290 for (j = commands[i].argv; *j; j++)
2291 fprintf (stderr, " %s", *j);
2293 /* Print a pipe symbol after all but the last command. */
2294 if (i + 1 != n_commands)
2295 fprintf (stderr, " |");
2296 fprintf (stderr, "\n");
2300 fprintf (stderr, "\nGo ahead? (y or n) ");
2304 while (getchar () != '\n') ;
2305 if (i != 'y' && i != 'Y')
2310 /* Run each piped subprocess. */
2312 last_pipe_input = STDIN_FILE_NO;
2313 for (i = 0; i < n_commands; i++)
2315 char *string = commands[i].argv[0];
2317 commands[i].pid = pexecute (string != commands[i].prog,
2318 string, commands[i].argv,
2319 i + 1 < n_commands);
2321 if (string != commands[i].prog)
2327 /* Wait for all the subprocesses to finish.
2328 We don't care what order they finish in;
2329 we know that N_COMMANDS waits will get them all.
2330 Ignore subprocesses that we don't know about,
2331 since they can be spawned by the process that exec'ed us. */
2336 for (i = 0; i < n_commands; )
2343 status = pid = commands[i].pid;
2346 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2348 pid = wait (&status);
2354 for (j = 0; j < n_commands; j++)
2355 if (commands[j].pid == pid)
2360 if (WIFSIGNALED (status))
2362 fatal ("Internal compiler error: program %s got fatal signal %d",
2363 commands[j].prog, WTERMSIG (status));
2367 else if (WIFEXITED (status)
2368 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2378 /* Find all the switches given to us
2379 and make a vector describing them.
2380 The elements of the vector are strings, one per switch given.
2381 If a switch uses following arguments, then the `part1' field
2382 is the switch itself and the `args' field
2383 is a null-terminated vector containing the following arguments.
2384 The `live_cond' field is 1 if the switch is true in a conditional spec,
2385 -1 if false (overridden by a later switch), and is initialized to zero.
2386 The `valid' field is nonzero if any spec has looked at this switch;
2387 if it remains zero at the end of the run, it must be meaningless. */
2397 static struct switchstr *switches;
2399 static int n_switches;
2407 /* Also a vector of input files specified. */
2409 static struct infile *infiles;
2411 static int n_infiles;
2413 /* And a vector of corresponding output files is made up later. */
2415 static char **outfiles;
2417 /* Create the vector `switches' and its contents.
2418 Store its length in `n_switches'. */
2421 process_command (argc, argv)
2427 char *spec_lang = 0;
2428 int last_language_n_infiles;
2430 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2435 /* Figure compiler version from version string. */
2437 compiler_version = save_string (version_string, strlen (version_string));
2438 for (temp = compiler_version; *temp; ++temp)
2447 /* Set up the default search paths. */
2449 if (gcc_exec_prefix)
2451 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2452 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2455 /* COMPILER_PATH and LIBRARY_PATH have values
2456 that are lists of directory names with colons. */
2458 temp = getenv ("COMPILER_PATH");
2461 char *startp, *endp;
2462 char *nstore = (char *) alloca (strlen (temp) + 3);
2464 startp = endp = temp;
2467 if (*endp == PATH_SEPARATOR || *endp == 0)
2469 strncpy (nstore, startp, endp-startp);
2471 strcpy (nstore, concat (".", dir_separator_str));
2472 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2474 nstore[endp-startp] = DIR_SEPARATOR;
2475 nstore[endp-startp+1] = 0;
2478 nstore[endp-startp] = 0;
2479 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2482 endp = startp = endp + 1;
2489 temp = getenv ("LIBRARY_PATH");
2490 if (temp && ! cross_compile)
2492 char *startp, *endp;
2493 char *nstore = (char *) alloca (strlen (temp) + 3);
2495 startp = endp = temp;
2498 if (*endp == PATH_SEPARATOR || *endp == 0)
2500 strncpy (nstore, startp, endp-startp);
2502 strcpy (nstore, concat (".", dir_separator_str));
2503 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2505 nstore[endp-startp] = DIR_SEPARATOR;
2506 nstore[endp-startp+1] = 0;
2509 nstore[endp-startp] = 0;
2510 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2513 endp = startp = endp + 1;
2520 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2521 temp = getenv ("LPATH");
2522 if (temp && ! cross_compile)
2524 char *startp, *endp;
2525 char *nstore = (char *) alloca (strlen (temp) + 3);
2527 startp = endp = temp;
2530 if (*endp == PATH_SEPARATOR || *endp == 0)
2532 strncpy (nstore, startp, endp-startp);
2534 strcpy (nstore, concat (".", dir_separator_str));
2535 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2537 nstore[endp-startp] = DIR_SEPARATOR;
2538 nstore[endp-startp+1] = 0;
2541 nstore[endp-startp] = 0;
2542 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2545 endp = startp = endp + 1;
2552 /* Convert new-style -- options to old-style. */
2553 translate_options (&argc, &argv);
2555 /* Scan argv twice. Here, the first time, just count how many switches
2556 there will be in their vector, and how many input files in theirs.
2557 Here we also parse the switches that cc itself uses (e.g. -v). */
2559 for (i = 1; i < argc; i++)
2561 if (! strcmp (argv[i], "-dumpspecs"))
2563 printf ("*asm:\n%s\n\n", asm_spec);
2564 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2565 printf ("*cpp:\n%s\n\n", cpp_spec);
2566 printf ("*cc1:\n%s\n\n", cc1_spec);
2567 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2568 printf ("*endfile:\n%s\n\n", endfile_spec);
2569 printf ("*link:\n%s\n\n", link_spec);
2570 printf ("*lib:\n%s\n\n", lib_spec);
2571 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2572 printf ("*startfile:\n%s\n\n", startfile_spec);
2573 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2574 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2575 printf ("*predefines:\n%s\n\n", cpp_predefines);
2576 printf ("*cross_compile:\n%d\n\n", cross_compile);
2577 printf ("*multilib:\n%s\n\n", multilib_select);
2581 else if (! strcmp (argv[i], "-dumpversion"))
2583 printf ("%s\n", version_string);
2586 else if (! strcmp (argv[i], "-dumpmachine"))
2588 printf ("%s\n", spec_machine);
2591 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2592 print_file_name = "libgcc.a";
2593 else if (! strncmp (argv[i], "-print-file-name=", 17))
2594 print_file_name = argv[i] + 17;
2595 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2596 print_prog_name = argv[i] + 17;
2597 else if (! strcmp (argv[i], "-print-multi-lib"))
2598 print_multi_lib = 1;
2599 else if (! strcmp (argv[i], "-print-multi-directory"))
2600 print_multi_directory = 1;
2601 else if (! strncmp (argv[i], "-Wa,", 4))
2604 /* Pass the rest of this option to the assembler. */
2606 n_assembler_options++;
2607 if (!assembler_options)
2609 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2612 = (char **) xrealloc (assembler_options,
2613 n_assembler_options * sizeof (char **));
2615 /* Split the argument at commas. */
2617 for (j = 4; argv[i][j]; j++)
2618 if (argv[i][j] == ',')
2620 assembler_options[n_assembler_options - 1]
2621 = save_string (argv[i] + prev, j - prev);
2622 n_assembler_options++;
2624 = (char **) xrealloc (assembler_options,
2625 n_assembler_options * sizeof (char **));
2628 /* Record the part after the last comma. */
2629 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2631 else if (! strncmp (argv[i], "-Wp,", 4))
2634 /* Pass the rest of this option to the preprocessor. */
2636 n_preprocessor_options++;
2637 if (!preprocessor_options)
2638 preprocessor_options
2639 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2641 preprocessor_options
2642 = (char **) xrealloc (preprocessor_options,
2643 n_preprocessor_options * sizeof (char **));
2645 /* Split the argument at commas. */
2647 for (j = 4; argv[i][j]; j++)
2648 if (argv[i][j] == ',')
2650 preprocessor_options[n_preprocessor_options - 1]
2651 = save_string (argv[i] + prev, j - prev);
2652 n_preprocessor_options++;
2653 preprocessor_options
2654 = (char **) xrealloc (preprocessor_options,
2655 n_preprocessor_options * sizeof (char **));
2658 /* Record the part after the last comma. */
2659 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2661 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2662 /* The +e options to the C++ front-end. */
2664 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2667 /* Split the argument at commas. */
2668 for (j = 3; argv[i][j]; j++)
2669 n_infiles += (argv[i][j] == ',');
2671 else if (strcmp (argv[i], "-Xlinker") == 0)
2674 fatal ("argument to `-Xlinker' is missing");
2679 else if (strncmp (argv[i], "-l", 2) == 0)
2681 else if (argv[i][0] == '-' && argv[i][1] != 0)
2683 register char *p = &argv[i][1];
2684 register int c = *p;
2689 if (p[1] == 0 && i + 1 == argc)
2690 fatal ("argument to `-b' is missing");
2692 spec_machine = argv[++i];
2694 spec_machine = p + 1;
2699 int *temp = (int *) xmalloc (sizeof (int));
2701 if (p[1] == 0 && i + 1 == argc)
2702 fatal ("argument to `-B' is missing");
2707 add_prefix (&exec_prefixes, value, 1, 0, temp);
2708 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2709 add_prefix (&include_prefixes, concat (value, "include"),
2712 /* As a kludge, if the arg is "[foo/]stageN/", just add
2713 "[foo/]include" to the include prefix. */
2715 int len = strlen (value);
2718 && (value[len - 8] == '/'
2719 || value[len - 8] == DIR_SEPARATOR)))
2720 && strncmp (value + len - 7, "stage", 5) == 0
2721 && isdigit (value[len - 2])
2722 && (value[len - 1] == '/'
2723 || value[len - 1] == DIR_SEPARATOR))
2726 add_prefix (&include_prefixes, "include", 1, 0, 0);
2729 char *string = xmalloc (len + 1);
2730 strncpy (string, value, len-7);
2731 strcat (string, "include");
2732 add_prefix (&include_prefixes, string, 1, 0, 0);
2739 case 'v': /* Print our subcommands and print versions. */
2741 /* If they do anything other than exactly `-v', don't set
2742 verbose_flag; rather, continue on to give the error. */
2749 if (p[1] == 0 && i + 1 == argc)
2750 fatal ("argument to `-V' is missing");
2752 spec_version = argv[++i];
2754 spec_version = p + 1;
2755 compiler_version = spec_version;
2759 if (!strcmp (p, "save-temps"))
2761 save_temps_flag = 1;
2768 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2769 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2770 else if (WORD_SWITCH_TAKES_ARG (p))
2771 i += WORD_SWITCH_TAKES_ARG (p);
2778 /* Set up the search paths before we go looking for config files. */
2780 /* These come before the md prefixes so that we will find gcc's subcommands
2781 (such as cpp) rather than those of the host system. */
2782 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2783 as well as trying the machine and the version. */
2785 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2786 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2789 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2790 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2792 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2795 /* If tooldir is relative, base it on exec_prefixes. A relative
2796 tooldir lets us move the installed tree as a unit.
2798 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2799 directories, so that we can search both the user specified directory
2800 and the standard place. */
2802 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2804 if (gcc_exec_prefix)
2806 char *gcc_exec_tooldir_prefix
2807 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2808 spec_version, dir_separator_str, tooldir_prefix);
2810 add_prefix (&exec_prefixes,
2811 concat3 (gcc_exec_tooldir_prefix, "bin",
2814 add_prefix (&startfile_prefixes,
2815 concat3 (gcc_exec_tooldir_prefix, "lib",
2820 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2821 dir_separator_str, spec_version,
2822 dir_separator_str, tooldir_prefix);
2825 add_prefix (&exec_prefixes,
2826 concat3 (tooldir_prefix, "bin", dir_separator_str),
2828 add_prefix (&startfile_prefixes,
2829 concat3 (tooldir_prefix, "lib", dir_separator_str),
2832 /* More prefixes are enabled in main, after we read the specs file
2833 and determine whether this is cross-compilation or not. */
2836 /* Then create the space for the vectors and scan again. */
2838 switches = ((struct switchstr *)
2839 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2840 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2843 last_language_n_infiles = -1;
2845 /* This, time, copy the text of each switch and store a pointer
2846 to the copy in the vector of switches.
2847 Store all the infiles in their vector. */
2849 for (i = 1; i < argc; i++)
2851 /* Just skip the switches that were handled by the preceding loop. */
2852 if (! strncmp (argv[i], "-Wa,", 4))
2854 else if (! strncmp (argv[i], "-Wp,", 4))
2856 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2858 else if (! strncmp (argv[i], "-print-file-name=", 17))
2860 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2862 else if (! strcmp (argv[i], "-print-multi-lib"))
2864 else if (! strcmp (argv[i], "-print-multi-directory"))
2866 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2868 /* Compensate for the +e options to the C++ front-end;
2869 they're there simply for cfront call-compatibility. We do
2870 some magic in default_compilers to pass them down properly.
2871 Note we deliberately start at the `+' here, to avoid passing
2872 -e0 or -e1 down into the linker. */
2873 switches[n_switches].part1 = &argv[i][0];
2874 switches[n_switches].args = 0;
2875 switches[n_switches].live_cond = 0;
2876 switches[n_switches].valid = 0;
2879 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2882 /* Split the argument at commas. */
2884 for (j = 4; argv[i][j]; j++)
2885 if (argv[i][j] == ',')
2887 infiles[n_infiles].language = spec_lang;
2888 infiles[n_infiles++].name
2889 = save_string (argv[i] + prev, j - prev);
2892 /* Record the part after the last comma. */
2893 infiles[n_infiles].language = spec_lang;
2894 infiles[n_infiles++].name = argv[i] + prev;
2896 else if (strcmp (argv[i], "-Xlinker") == 0)
2898 infiles[n_infiles].language = spec_lang;
2899 infiles[n_infiles++].name = argv[++i];
2901 else if (strncmp (argv[i], "-l", 2) == 0)
2903 infiles[n_infiles].language = spec_lang;
2904 infiles[n_infiles++].name = argv[i];
2906 else if (argv[i][0] == '-' && argv[i][1] != 0)
2908 register char *p = &argv[i][1];
2909 register int c = *p;
2911 if (c == 'B' || c == 'b' || c == 'V')
2913 /* Skip a separate arg, if any. */
2920 if (p[1] == 0 && i + 1 == argc)
2921 fatal ("argument to `-x' is missing");
2923 spec_lang = argv[++i];
2926 if (! strcmp (spec_lang, "none"))
2927 /* Suppress the warning if -xnone comes after the last input file,
2928 because alternate command interfaces like g++ might find it
2929 useful to place -xnone after each input file. */
2932 last_language_n_infiles = n_infiles;
2935 switches[n_switches].part1 = p;
2936 /* Deal with option arguments in separate argv elements. */
2937 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2938 || WORD_SWITCH_TAKES_ARG (p))
2941 int n_args = WORD_SWITCH_TAKES_ARG (p);
2945 /* Count only the option arguments in separate argv elements. */
2946 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2948 if (i + n_args >= argc)
2949 fatal ("argument to `-%s' is missing", p);
2950 switches[n_switches].args
2951 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2953 switches[n_switches].args[j++] = argv[++i];
2954 /* Null-terminate the vector. */
2955 switches[n_switches].args[j] = 0;
2957 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2959 /* On some systems, ld cannot handle -o or -L without space.
2960 So split the -o or -L from its argument. */
2961 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2962 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2963 switches[n_switches].args[0] = xmalloc (strlen (p));
2964 strcpy (switches[n_switches].args[0], &p[1]);
2965 switches[n_switches].args[1] = 0;
2968 switches[n_switches].args = 0;
2970 switches[n_switches].live_cond = 0;
2971 switches[n_switches].valid = 0;
2972 /* This is always valid, since gcc.c itself understands it. */
2973 if (!strcmp (p, "save-temps"))
2974 switches[n_switches].valid = 1;
2979 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2981 perror_with_name (argv[i]);
2986 infiles[n_infiles].language = spec_lang;
2987 infiles[n_infiles++].name = argv[i];
2992 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2993 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2995 switches[n_switches].part1 = 0;
2996 infiles[n_infiles].name = 0;
2998 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2999 if (gcc_exec_prefix)
3001 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
3002 + strlen (spec_machine) + 3);
3003 strcpy (temp, gcc_exec_prefix);
3004 strcat (temp, spec_machine);
3005 strcat (temp, dir_separator_str);
3006 strcat (temp, spec_version);
3007 strcat (temp, dir_separator_str);
3008 gcc_exec_prefix = temp;
3012 /* Process a spec string, accumulating and running commands. */
3014 /* These variables describe the input file name.
3015 input_file_number is the index on outfiles of this file,
3016 so that the output file name can be stored for later use by %o.
3017 input_basename is the start of the part of the input file
3018 sans all directory names, and basename_length is the number
3019 of characters starting there excluding the suffix .c or whatever. */
3021 static char *input_filename;
3022 static int input_file_number;
3023 static int input_filename_length;
3024 static int basename_length;
3025 static char *input_basename;
3026 static char *input_suffix;
3028 /* These are variables used within do_spec and do_spec_1. */
3030 /* Nonzero if an arg has been started and not yet terminated
3031 (with space, tab or newline). */
3032 static int arg_going;
3034 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3035 is a temporary file name. */
3036 static int delete_this_arg;
3038 /* Nonzero means %w has been seen; the next arg to be terminated
3039 is the output file name of this compilation. */
3040 static int this_is_output_file;
3042 /* Nonzero means %s has been seen; the next arg to be terminated
3043 is the name of a library file and we should try the standard
3044 search dirs for it. */
3045 static int this_is_library_file;
3047 /* Nonzero means that the input of this command is coming from a pipe. */
3048 static int input_from_pipe;
3050 /* Process the spec SPEC and run the commands specified therein.
3051 Returns 0 if the spec is successfully processed; -1 if failed. */
3061 delete_this_arg = 0;
3062 this_is_output_file = 0;
3063 this_is_library_file = 0;
3064 input_from_pipe = 0;
3066 value = do_spec_1 (spec, 0, NULL_PTR);
3068 /* Force out any unfinished command.
3069 If -pipe, this forces out the last command if it ended in `|'. */
3072 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3075 if (argbuf_index > 0)
3082 /* Process the sub-spec SPEC as a portion of a larger spec.
3083 This is like processing a whole spec except that we do
3084 not initialize at the beginning and we do not supply a
3085 newline by default at the end.
3086 INSWITCH nonzero means don't process %-sequences in SPEC;
3087 in this case, % is treated as an ordinary character.
3088 This is used while substituting switches.
3089 INSWITCH nonzero also causes SPC not to terminate an argument.
3091 Value is zero unless a line was finished
3092 and the command on that line reported an error. */
3095 do_spec_1 (spec, inswitch, soft_matched_part)
3098 char *soft_matched_part;
3100 register char *p = spec;
3107 /* If substituting a switch, treat all chars like letters.
3108 Otherwise, NL, SPC, TAB and % are special. */
3109 switch (inswitch ? 'a' : c)
3112 /* End of line: finish any pending argument,
3113 then run the pending command if one has been started. */
3116 obstack_1grow (&obstack, 0);
3117 string = obstack_finish (&obstack);
3118 if (this_is_library_file)
3119 string = find_file (string);
3120 store_arg (string, delete_this_arg, this_is_output_file);
3121 if (this_is_output_file)
3122 outfiles[input_file_number] = string;
3126 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3129 for (i = 0; i < n_switches; i++)
3130 if (!strcmp (switches[i].part1, "pipe"))
3133 /* A `|' before the newline means use a pipe here,
3134 but only if -pipe was specified.
3135 Otherwise, execute now and don't pass the `|' as an arg. */
3138 input_from_pipe = 1;
3139 switches[i].valid = 1;
3146 if (argbuf_index > 0)
3152 /* Reinitialize for a new command, and for a new argument. */
3155 delete_this_arg = 0;
3156 this_is_output_file = 0;
3157 this_is_library_file = 0;
3158 input_from_pipe = 0;
3162 /* End any pending argument. */
3165 obstack_1grow (&obstack, 0);
3166 string = obstack_finish (&obstack);
3167 if (this_is_library_file)
3168 string = find_file (string);
3169 store_arg (string, delete_this_arg, this_is_output_file);
3170 if (this_is_output_file)
3171 outfiles[input_file_number] = string;
3175 obstack_1grow (&obstack, c);
3181 /* Space or tab ends an argument if one is pending. */
3184 obstack_1grow (&obstack, 0);
3185 string = obstack_finish (&obstack);
3186 if (this_is_library_file)
3187 string = find_file (string);
3188 store_arg (string, delete_this_arg, this_is_output_file);
3189 if (this_is_output_file)
3190 outfiles[input_file_number] = string;
3192 /* Reinitialize for a new argument. */
3194 delete_this_arg = 0;
3195 this_is_output_file = 0;
3196 this_is_library_file = 0;
3203 fatal ("Invalid specification! Bug in cc.");
3206 obstack_grow (&obstack, input_basename, basename_length);
3211 delete_this_arg = 2;
3214 /* Dump out the directories specified with LIBRARY_PATH,
3215 followed by the absolute directories
3216 that we search for startfiles. */
3219 struct prefix_list *pl = startfile_prefixes.plist;
3221 char *buffer = (char *) xmalloc (bufsize);
3224 for (; pl; pl = pl->next)
3226 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3227 /* Used on systems which record the specified -L dirs
3228 and use them to search for dynamic linking. */
3229 /* Relative directories always come from -B,
3230 and it is better not to use them for searching
3231 at run time. In particular, stage1 loses */
3232 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3235 /* Try subdirectory if there is one. */
3236 if (multilib_dir != NULL)
3240 if (strlen (pl->prefix) + strlen (machine_suffix)
3242 bufsize = (strlen (pl->prefix)
3243 + strlen (machine_suffix)) * 2 + 1;
3244 buffer = (char *) xrealloc (buffer, bufsize);
3245 strcpy (buffer, pl->prefix);
3246 strcat (buffer, machine_suffix);
3247 if (is_directory (buffer, multilib_dir, 1))
3249 do_spec_1 ("-L", 0, NULL_PTR);
3250 #ifdef SPACE_AFTER_L_OPTION
3251 do_spec_1 (" ", 0, NULL_PTR);
3253 do_spec_1 (buffer, 1, NULL_PTR);
3254 do_spec_1 (multilib_dir, 1, NULL_PTR);
3255 /* Make this a separate argument. */
3256 do_spec_1 (" ", 0, NULL_PTR);
3259 if (!pl->require_machine_suffix)
3261 if (is_directory (pl->prefix, multilib_dir, 1))
3263 do_spec_1 ("-L", 0, NULL_PTR);
3264 #ifdef SPACE_AFTER_L_OPTION
3265 do_spec_1 (" ", 0, NULL_PTR);
3267 do_spec_1 (pl->prefix, 1, NULL_PTR);
3268 do_spec_1 (multilib_dir, 1, NULL_PTR);
3269 /* Make this a separate argument. */
3270 do_spec_1 (" ", 0, NULL_PTR);
3276 if (is_directory (pl->prefix, machine_suffix, 1))
3278 do_spec_1 ("-L", 0, NULL_PTR);
3279 #ifdef SPACE_AFTER_L_OPTION
3280 do_spec_1 (" ", 0, NULL_PTR);
3282 do_spec_1 (pl->prefix, 1, NULL_PTR);
3283 /* Remove slash from machine_suffix. */
3284 if (strlen (machine_suffix) >= bufsize)
3285 bufsize = strlen (machine_suffix) * 2 + 1;
3286 buffer = (char *) xrealloc (buffer, bufsize);
3287 strcpy (buffer, machine_suffix);
3288 idx = strlen (buffer);
3289 if (buffer[idx - 1] == '/'
3290 || buffer[idx - 1] == DIR_SEPARATOR)
3291 buffer[idx - 1] = 0;
3292 do_spec_1 (buffer, 1, NULL_PTR);
3293 /* Make this a separate argument. */
3294 do_spec_1 (" ", 0, NULL_PTR);
3297 if (!pl->require_machine_suffix)
3299 if (is_directory (pl->prefix, "", 1))
3301 do_spec_1 ("-L", 0, NULL_PTR);
3302 #ifdef SPACE_AFTER_L_OPTION
3303 do_spec_1 (" ", 0, NULL_PTR);
3305 /* Remove slash from pl->prefix. */
3306 if (strlen (pl->prefix) >= bufsize)
3307 bufsize = strlen (pl->prefix) * 2 + 1;
3308 buffer = (char *) xrealloc (buffer, bufsize);
3309 strcpy (buffer, pl->prefix);
3310 idx = strlen (buffer);
3311 if (buffer[idx - 1] == '/'
3312 || buffer[idx - 1] == DIR_SEPARATOR)
3313 buffer[idx - 1] = 0;
3314 do_spec_1 (buffer, 1, NULL_PTR);
3315 /* Make this a separate argument. */
3316 do_spec_1 (" ", 0, NULL_PTR);
3325 /* {...:%efoo} means report an error with `foo' as error message
3326 and don't execute any more commands for this file. */
3330 while (*p != 0 && *p != '\n') p++;
3331 buf = (char *) alloca (p - q + 1);
3332 strncpy (buf, q, p - q);
3342 if (save_temps_flag)
3344 obstack_grow (&obstack, input_basename, basename_length);
3345 delete_this_arg = 0;
3349 #ifdef MKTEMP_EACH_FILE
3350 /* ??? This has a problem: the total number of
3351 values mktemp can return is limited.
3352 That matters for the names of object files.
3353 In 2.4, do something about that. */
3354 struct temp_name *t;
3356 while (*p == '.' || isalpha (*p))
3359 /* See if we already have an association of %g/%u/%U and
3361 for (t = temp_names; t; t = t->next)
3362 if (t->length == p - suffix
3363 && strncmp (t->suffix, suffix, p - suffix) == 0
3364 && t->unique == (c != 'g'))
3367 /* Make a new association if needed. %u requires one. */
3368 if (t == 0 || c == 'u')
3372 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3373 t->next = temp_names;
3376 t->length = p - suffix;
3377 t->suffix = save_string (suffix, p - suffix);
3378 t->unique = (c != 'g');
3379 choose_temp_base ();
3380 t->filename = temp_filename;
3381 t->filename_length = temp_filename_length;
3384 obstack_grow (&obstack, t->filename, t->filename_length);
3385 delete_this_arg = 1;
3387 obstack_grow (&obstack, temp_filename, temp_filename_length);
3388 if (c == 'u' || c == 'U')
3394 sprintf (buff, "%d", unique);
3395 obstack_grow (&obstack, buff, strlen (buff));
3398 delete_this_arg = 1;
3404 obstack_grow (&obstack, input_filename, input_filename_length);
3410 struct prefix_list *pl = include_prefixes.plist;
3412 if (gcc_exec_prefix)
3414 do_spec_1 ("-iprefix", 1, NULL_PTR);
3415 /* Make this a separate argument. */
3416 do_spec_1 (" ", 0, NULL_PTR);
3417 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3418 do_spec_1 (" ", 0, NULL_PTR);
3421 for (; pl; pl = pl->next)
3423 do_spec_1 ("-isystem", 1, NULL_PTR);
3424 /* Make this a separate argument. */
3425 do_spec_1 (" ", 0, NULL_PTR);
3426 do_spec_1 (pl->prefix, 1, NULL_PTR);
3427 do_spec_1 (" ", 0, NULL_PTR);
3435 for (f = 0; f < n_infiles; f++)
3436 store_arg (outfiles[f], 0, 0);
3441 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3446 this_is_library_file = 1;
3450 this_is_output_file = 1;
3455 int index = argbuf_index;
3456 /* Handle the {...} following the %W. */
3459 p = handle_braces (p + 1);
3462 /* If any args were output, mark the last one for deletion
3464 if (argbuf_index != index)
3465 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3469 /* %x{OPTION} records OPTION for %X to output. */
3475 /* Skip past the option value and make a copy. */
3480 string = save_string (p1 + 1, p - p1 - 2);
3482 /* See if we already recorded this option. */
3483 for (i = 0; i < n_linker_options; i++)
3484 if (! strcmp (string, linker_options[i]))
3490 /* This option is new; add it. */
3492 if (!linker_options)
3494 = (char **) xmalloc (n_linker_options * sizeof (char **));
3497 = (char **) xrealloc (linker_options,
3498 n_linker_options * sizeof (char **));
3500 linker_options[n_linker_options - 1] = string;
3504 /* Dump out the options accumulated previously using %x. */
3506 for (i = 0; i < n_linker_options; i++)
3508 do_spec_1 (linker_options[i], 1, NULL_PTR);
3509 /* Make each accumulated option a separate argument. */
3510 do_spec_1 (" ", 0, NULL_PTR);
3514 /* Dump out the options accumulated previously using -Wa,. */
3516 for (i = 0; i < n_assembler_options; i++)
3518 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3519 /* Make each accumulated option a separate argument. */
3520 do_spec_1 (" ", 0, NULL_PTR);
3524 /* Dump out the options accumulated previously using -Wp,. */
3526 for (i = 0; i < n_preprocessor_options; i++)
3528 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3529 /* Make each accumulated option a separate argument. */
3530 do_spec_1 (" ", 0, NULL_PTR);
3534 /* Here are digits and numbers that just process
3535 a certain constant string as a spec. */
3538 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3544 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3550 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3556 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3562 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3568 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3574 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3580 value = do_spec_1 (link_spec, 0, NULL_PTR);
3586 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3592 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3599 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3603 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3607 if (! strncmp (y, "-D", 2))
3608 /* Copy the whole option. */
3609 while (*y && *y != ' ' && *y != '\t')
3611 else if (*y == ' ' || *y == '\t')
3612 /* Copy whitespace to the result. */
3614 /* Don't copy other options. */
3621 value = do_spec_1 (buf, 0, NULL_PTR);
3629 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3633 /* Copy all of CPP_PREDEFINES into BUF,
3634 but put __ after every -D and at the end of each arg. */
3638 if (! strncmp (y, "-D", 2))
3646 || (*(y+1) != '_' && ! isupper (*(y+1))))
3648 /* Stick __ at front of macro name. */
3651 /* Arrange to stick __ at the end as well. */
3655 /* Copy the macro name. */
3656 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3665 /* Copy the value given, if any. */
3666 while (*y && *y != ' ' && *y != '\t')
3669 else if (*y == ' ' || *y == '\t')
3670 /* Copy whitespace to the result. */
3672 /* Don't copy -A options */
3678 /* Copy all of CPP_PREDEFINES into BUF,
3679 but put __ after every -D. */
3683 if (! strncmp (y, "-D", 2))
3688 || (*(y+1) != '_' && ! isupper (*(y+1))))
3690 /* Stick -D__ at front of macro name. */
3696 /* Copy the macro name. */
3697 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3700 /* Copy the value given, if any. */
3701 while (*y && *y != ' ' && *y != '\t')
3706 /* Do not copy this macro - we have just done it before */
3707 while (*y && *y != ' ' && *y != '\t')
3711 else if (*y == ' ' || *y == '\t')
3712 /* Copy whitespace to the result. */
3714 /* Don't copy -A options */
3720 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3724 if (! strncmp (y, "-A", 2))
3725 /* Copy the whole option. */
3726 while (*y && *y != ' ' && *y != '\t')
3728 else if (*y == ' ' || *y == '\t')
3729 /* Copy whitespace to the result. */
3731 /* Don't copy other options. */
3738 value = do_spec_1 (buf, 0, NULL_PTR);
3745 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3750 /* Here we define characters other than letters and digits. */
3753 p = handle_braces (p);
3759 obstack_1grow (&obstack, '%');
3763 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3764 do_spec_1 (" ", 0, NULL_PTR);
3767 /* Process a string found as the value of a spec given by name.
3768 This feature allows individual machine descriptions
3769 to add and use their own specs.
3770 %[...] modifies -D options the way %P does;
3771 %(...) uses the spec unmodified. */
3776 struct spec_list *sl;
3779 /* The string after the S/P is the name of a spec that is to be
3781 while (*p && *p != ')' && *p != ']')
3784 /* See if it's in the list */
3785 for (len = p - name, sl = specs; sl; sl = sl->next)
3786 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3796 value = do_spec_1 (name, 0, NULL_PTR);
3802 char *x = (char *) alloca (strlen (name) * 2 + 1);
3806 /* Copy all of NAME into BUF, but put __ after
3807 every -D and at the end of each arg, */
3810 if (! strncmp (y, "-D", 2))
3818 else if (*y == ' ' || *y == 0)
3832 value = do_spec_1 (buf, 0, NULL_PTR);
3838 /* Discard the closing paren or bracket. */
3846 int c1 = *p++; /* Select first or second version number. */
3847 char *v = compiler_version;
3849 /* If desired, advance to second version number. */
3852 /* Set P after the first period. */
3853 while (*v != 0 && *v != ' ' && *v != '.')
3858 /* Set Q at the next period or at the end. */
3860 while (*q != 0 && *q != ' ' && *q != '.')
3862 /* Empty string means zero. */
3868 /* Put that part into the command. */
3869 obstack_grow (&obstack, v, q - v);
3875 if (input_from_pipe)
3876 do_spec_1 ("-", 0, NULL_PTR);
3885 /* Backslash: treat next character as ordinary. */
3890 /* Ordinary character: put it into the current argument. */
3891 obstack_1grow (&obstack, c);
3895 return 0; /* End of string */
3898 /* Return 0 if we call do_spec_1 and that returns -1. */
3911 /* A `|' after the open-brace means,
3912 if the test fails, output a single minus sign rather than nothing.
3913 This is used in %{|!pipe:...}. */
3917 /* A `!' after the open-brace negates the condition:
3918 succeed if the specified switch is not present. */
3922 /* A `.' after the open-brace means test against the current suffix. */
3932 while (*p != ':' && *p != '}') p++;
3935 register int count = 1;
3953 int found = (input_suffix != 0
3954 && strlen (input_suffix) == p - filter
3955 && strncmp (input_suffix, filter, p - filter) == 0);
3961 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3966 else if (p[-1] == '*' && p[0] == '}')
3968 /* Substitute all matching switches as separate args. */
3971 for (i = 0; i < n_switches; i++)
3972 if (!strncmp (switches[i].part1, filter, p - filter)
3973 && check_live_switch (i, p - filter))
3978 /* Test for presence of the specified switch. */
3982 /* If name specified ends in *, as in {x*:...},
3983 check for %* and handle that case. */
3984 if (p[-1] == '*' && !negate)
3989 /* First see whether we have %*. */
3993 if (*r == '%' && r[1] == '*')
3997 /* If we do, handle that case. */
4000 /* Substitute all matching switches as separate args.
4001 But do this by substituting for %*
4002 in the text that follows the colon. */
4004 unsigned hard_match_len = p - filter - 1;
4005 char *string = save_string (p + 1, q - p - 2);
4007 for (i = 0; i < n_switches; i++)
4008 if (!strncmp (switches[i].part1, filter, hard_match_len)
4009 && check_live_switch (i, -1))
4011 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4012 /* Pass any arguments this switch has. */
4020 /* If name specified ends in *, as in {x*:...},
4021 check for presence of any switch name starting with x. */
4024 for (i = 0; i < n_switches; i++)
4026 unsigned hard_match_len = p - filter - 1;
4028 if (!strncmp (switches[i].part1, filter, hard_match_len)
4029 && check_live_switch (i, hard_match_len))
4035 /* Otherwise, check for presence of exact name specified. */
4038 for (i = 0; i < n_switches; i++)
4040 if (!strncmp (switches[i].part1, filter, p - filter)
4041 && switches[i].part1[p - filter] == 0
4042 && check_live_switch (i, -1))
4050 /* If it is as desired (present for %{s...}, absent for %{-s...})
4051 then substitute either the switch or the specified
4052 conditional text. */
4053 if (present != negate)
4061 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4067 /* Here if a %{|...} conditional fails: output a minus sign,
4068 which means "standard output" or "standard input". */
4069 do_spec_1 ("-", 0, NULL_PTR);
4076 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4077 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4078 spec, or -1 if either exact match or %* is used.
4080 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4081 whose value does not begin with "no-" is obsoleted by the same value
4082 with the "no-", similarly for a switch with the "no-" prefix. */
4085 check_live_switch (switchnum, prefix_length)
4089 char *name = switches[switchnum].part1;
4092 /* In the common case of {<at-most-one-letter>*}, a negating
4093 switch would always match, so ignore that case. We will just
4094 send the conflicting switches to the compiler phase. */
4095 if (prefix_length >= 0 && prefix_length <= 1)
4098 /* If we already processed this switch and determined if it was
4099 live or not, return our past determination. */
4100 if (switches[switchnum].live_cond != 0)
4101 return switches[switchnum].live_cond > 0;
4103 /* Now search for duplicate in a manner that depends on the name. */
4107 for (i = switchnum + 1; i < n_switches; i++)
4108 if (switches[i].part1[0] == 'O')
4110 switches[switchnum].valid = 1;
4111 switches[switchnum].live_cond = -1;
4116 case 'W': case 'f': case 'm':
4117 if (! strncmp (name + 1, "no-", 3))
4119 /* We have Xno-YYY, search for XYYY. */
4120 for (i = switchnum + 1; i < n_switches; i++)
4121 if (switches[i].part1[0] == name[0]
4122 && ! strcmp (&switches[i].part1[1], &name[4]))
4124 switches[switchnum].valid = 1;
4125 switches[switchnum].live_cond = -1;
4131 /* We have XYYY, search for Xno-YYY. */
4132 for (i = switchnum + 1; i < n_switches; i++)
4133 if (switches[i].part1[0] == name[0]
4134 && switches[i].part1[1] == 'n'
4135 && switches[i].part1[2] == 'o'
4136 && switches[i].part1[3] == '-'
4137 && !strcmp (&switches[i].part1[4], &name[1]))
4139 switches[switchnum].valid = 1;
4140 switches[switchnum].live_cond = -1;
4147 /* Otherwise the switch is live. */
4148 switches[switchnum].live_cond = 1;
4152 /* Pass a switch to the current accumulating command
4153 in the same form that we received it.
4154 SWITCHNUM identifies the switch; it is an index into
4155 the vector of switches gcc received, which is `switches'.
4156 This cannot fail since it never finishes a command line.
4158 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4161 give_switch (switchnum, omit_first_word)
4163 int omit_first_word;
4165 if (!omit_first_word)
4167 do_spec_1 ("-", 0, NULL_PTR);
4168 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4170 do_spec_1 (" ", 0, NULL_PTR);
4171 if (switches[switchnum].args != 0)
4174 for (p = switches[switchnum].args; *p; p++)
4176 do_spec_1 (*p, 1, NULL_PTR);
4177 do_spec_1 (" ", 0, NULL_PTR);
4180 switches[switchnum].valid = 1;
4183 /* Search for a file named NAME trying various prefixes including the
4184 user's -B prefix and some standard ones.
4185 Return the absolute file name found. If nothing is found, return NAME. */
4193 /* Try multilib_dir if it is defined. */
4194 if (multilib_dir != NULL)
4198 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4199 strcpy (try, multilib_dir);
4200 strcat (try, dir_separator_str);
4203 newname = find_a_file (&startfile_prefixes, try, R_OK);
4205 /* If we don't find it in the multi library dir, then fall
4206 through and look for it in the normal places. */
4207 if (newname != NULL)
4211 newname = find_a_file (&startfile_prefixes, name, R_OK);
4212 return newname ? newname : name;
4215 /* Determine whether a directory exists. If LINKER, return 0 for
4216 certain fixed names not needed by the linker. If not LINKER, it is
4217 only important to return 0 if the host machine has a small ARG_MAX
4221 is_directory (path1, path2, linker)
4226 int len1 = strlen (path1);
4227 int len2 = strlen (path2);
4228 char *path = (char *) alloca (3 + len1 + len2);
4232 #ifndef SMALL_ARG_MAX
4237 /* Construct the path from the two parts. Ensure the string ends with "/.".
4238 The resulting path will be a directory even if the given path is a
4240 bcopy (path1, path, len1);
4241 bcopy (path2, path + len1, len2);
4242 cp = path + len1 + len2;
4243 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4244 *cp++ = DIR_SEPARATOR;
4248 /* Exclude directories that the linker is known to search. */
4251 && strcmp (path, concat4 (dir_separator_str, "lib",
4252 dir_separator_str, ".")) == 0)
4254 && strcmp (path, concat6 (dir_separator_str, "usr",
4255 dir_separator_str, "lib",
4256 dir_separator_str, ".")) == 0)))
4259 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4262 /* On fatal signals, delete all the temporary files. */
4265 fatal_error (signum)
4268 signal (signum, SIG_DFL);
4269 delete_failure_queue ();
4270 delete_temp_files ();
4271 /* Get the same signal again, this time not handled,
4272 so its normal effect occurs. */
4273 kill (getpid (), signum);
4284 int linker_was_run = 0;
4285 char *explicit_link_files;
4289 p = argv[0] + strlen (argv[0]);
4290 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4293 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4294 signal (SIGINT, fatal_error);
4296 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4297 signal (SIGHUP, fatal_error);
4299 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4300 signal (SIGTERM, fatal_error);
4302 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4303 signal (SIGPIPE, fatal_error);
4307 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4309 obstack_init (&obstack);
4311 /* Set up to remember the pathname of gcc and any options
4312 needed for collect. We use argv[0] instead of programname because
4313 we need the complete pathname. */
4314 obstack_init (&collect_obstack);
4315 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4316 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4317 putenv (obstack_finish (&collect_obstack));
4319 /* Choose directory for temp files. */
4321 choose_temp_base ();
4323 /* Make a table of what switches there are (switches, n_switches).
4324 Make a table of specified input files (infiles, n_infiles).
4325 Decode switches that are handled locally. */
4327 process_command (argc, argv);
4329 /* Initialize the vector of specs to just the default.
4330 This means one element containing 0s, as a terminator. */
4332 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4333 bcopy ((char *) default_compilers, (char *) compilers,
4334 sizeof default_compilers);
4335 n_compilers = n_default_compilers;
4337 /* Read specs from a file if there is one. */
4339 machine_suffix = concat4 (spec_machine, dir_separator_str,
4340 spec_version, dir_separator_str);
4341 just_machine_suffix = concat (spec_machine, dir_separator_str);
4343 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4344 /* Read the specs file unless it is a default one. */
4345 if (specs_file != 0 && strcmp (specs_file, "specs"))
4346 read_specs (specs_file);
4348 /* If not cross-compiling, look for startfiles in the standard places. */
4349 /* The fact that these are done here, after reading the specs file,
4350 means that it cannot be found in these directories.
4351 But that's okay. It should never be there anyway. */
4354 #ifdef MD_EXEC_PREFIX
4355 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4356 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4359 #ifdef MD_STARTFILE_PREFIX
4360 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4363 #ifdef MD_STARTFILE_PREFIX_1
4364 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4367 /* If standard_startfile_prefix is relative, base it on
4368 standard_exec_prefix. This lets us move the installed tree
4369 as a unit. If GCC_EXEC_PREFIX is defined, base
4370 standard_startfile_prefix on that as well. */
4371 if (*standard_startfile_prefix == '/'
4372 || *standard_startfile_prefix == DIR_SEPARATOR)
4373 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4377 if (gcc_exec_prefix)
4378 add_prefix (&startfile_prefixes,
4379 concat (gcc_exec_prefix, standard_startfile_prefix),
4381 add_prefix (&startfile_prefixes,
4382 concat3 (standard_exec_prefix,
4384 standard_startfile_prefix),
4388 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4390 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4392 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4393 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4397 /* Now we have the specs.
4398 Set the `valid' bits for switches that match anything in any spec. */
4400 validate_all_switches ();
4402 /* Now that we have the switches and the specs, set
4403 the subdirectory based on the options. */
4404 set_multilib_dir ();
4406 /* Warn about any switches that no pass was interested in. */
4408 for (i = 0; i < n_switches; i++)
4409 if (! switches[i].valid)
4410 error ("unrecognized option `-%s'", switches[i].part1);
4412 /* Obey some of the options. */
4414 if (print_file_name)
4416 printf ("%s\n", find_file (print_file_name));
4420 if (print_prog_name)
4422 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4423 printf ("%s\n", (newname ? newname : print_prog_name));
4427 if (print_multi_lib)
4429 print_multilib_info ();
4433 if (print_multi_directory)
4435 if (multilib_dir == NULL)
4438 printf ("%s\n", multilib_dir);
4444 if (! strcmp (version_string, compiler_version))
4445 fprintf (stderr, "gcc version %s\n", version_string);
4447 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4448 version_string, compiler_version);
4455 fatal ("No input files");
4457 /* Make a place to record the compiler output file names
4458 that correspond to the input files. */
4460 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4461 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4463 /* Record which files were specified explicitly as link input. */
4465 explicit_link_files = xmalloc (n_infiles);
4466 bzero (explicit_link_files, n_infiles);
4468 for (i = 0; i < n_infiles; i++)
4470 register struct compiler *cp = 0;
4471 int this_file_error = 0;
4473 /* Tell do_spec what to substitute for %i. */
4475 input_filename = infiles[i].name;
4476 input_filename_length = strlen (input_filename);
4477 input_file_number = i;
4479 /* Use the same thing in %o, unless cp->spec says otherwise. */
4481 outfiles[i] = input_filename;
4483 /* Figure out which compiler from the file's suffix. */
4485 cp = lookup_compiler (infiles[i].name, input_filename_length,
4486 infiles[i].language);
4490 /* Ok, we found an applicable compiler. Run its spec. */
4491 /* First say how much of input_filename to substitute for %b */
4495 input_basename = input_filename;
4496 for (p = input_filename; *p; p++)
4497 if (*p == '/' || *p == DIR_SEPARATOR)
4498 input_basename = p + 1;
4500 /* Find a suffix starting with the last period,
4501 and set basename_length to exclude that suffix. */
4502 basename_length = strlen (input_basename);
4503 p = input_basename + basename_length;
4504 while (p != input_basename && *p != '.') --p;
4505 if (*p == '.' && p != input_basename)
4507 basename_length = p - input_basename;
4508 input_suffix = p + 1;
4514 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4516 len += strlen (cp->spec[j]);
4518 p = (char *) xmalloc (len + 1);
4521 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4524 strcpy (p + len, cp->spec[j]);
4525 len += strlen (cp->spec[j]);
4528 value = do_spec (p);
4531 this_file_error = 1;
4534 /* If this file's name does not contain a recognized suffix,
4535 record it as explicit linker input. */
4538 explicit_link_files[i] = 1;
4540 /* Clear the delete-on-failure queue, deleting the files in it
4541 if this compilation failed. */
4543 if (this_file_error)
4545 delete_failure_queue ();
4548 /* If this compilation succeeded, don't delete those files later. */
4549 clear_failure_queue ();
4552 /* Run ld to link all the compiler output files. */
4554 if (error_count == 0)
4556 int tmp = execution_count;
4560 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4562 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4563 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4565 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4567 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4568 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4571 for (i = 0; i < n_switches; i++)
4575 obstack_grow (&collect_obstack, " ", 1);
4578 obstack_grow (&collect_obstack, "-", 1);
4579 obstack_grow (&collect_obstack, switches[i].part1,
4580 strlen (switches[i].part1));
4582 for (args = switches[i].args; args && *args; args++)
4584 obstack_grow (&collect_obstack, " ", 1);
4585 obstack_grow (&collect_obstack, *args, strlen (*args));
4588 obstack_grow (&collect_obstack, "\0", 1);
4589 putenv (obstack_finish (&collect_obstack));
4591 value = do_spec (link_command_spec);
4594 linker_was_run = (tmp != execution_count);
4597 /* Warn if a -B option was specified but the prefix was never used. */
4598 unused_prefix_warnings (&exec_prefixes);
4599 unused_prefix_warnings (&startfile_prefixes);
4601 /* If options said don't run linker,
4602 complain about input files to be given to the linker. */
4604 if (! linker_was_run && error_count == 0)
4605 for (i = 0; i < n_infiles; i++)
4606 if (explicit_link_files[i])
4607 error ("%s: linker input file unused since linking not done",
4610 /* Delete some or all of the temporary files we made. */
4613 delete_failure_queue ();
4614 delete_temp_files ();
4616 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4621 /* Find the proper compilation spec for the file name NAME,
4622 whose length is LENGTH. LANGUAGE is the specified language,
4623 or 0 if none specified. */
4625 static struct compiler *
4626 lookup_compiler (name, length, language)
4631 struct compiler *cp;
4633 /* Look for the language, if one is spec'd. */
4636 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4640 if (cp->suffix[0] == '@'
4641 && !strcmp (cp->suffix + 1, language))
4645 error ("language %s not recognized", language);
4648 /* Look for a suffix. */
4649 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4651 if (/* The suffix `-' matches only the file name `-'. */
4652 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4654 (strlen (cp->suffix) < length
4655 /* See if the suffix matches the end of NAME. */
4657 && (!strcmp (cp->suffix,
4658 name + length - strlen (cp->suffix))
4659 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4660 && !strcasecmp (cp->suffix,
4661 name + length - strlen (cp->suffix)))))
4663 && !strcmp (cp->suffix,
4664 name + length - strlen (cp->suffix))))
4667 if (cp->spec[0][0] == '@')
4669 struct compiler *new;
4670 /* An alias entry maps a suffix to a language.
4671 Search for the language; pass 0 for NAME and LENGTH
4672 to avoid infinite recursion if language not found.
4673 Construct the new compiler spec. */
4674 language = cp->spec[0] + 1;
4675 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4676 new->suffix = cp->suffix;
4677 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4678 (char *) new->spec, sizeof new->spec);
4681 /* A non-alias entry: return it. */
4693 register char *value = (char *) malloc (size);
4695 fatal ("virtual memory exhausted");
4700 xrealloc (ptr, size)
4704 register char *value = (char *) realloc (ptr, size);
4706 fatal ("virtual memory exhausted");
4710 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4716 int len1 = strlen (s1);
4717 int len2 = strlen (s2);
4718 char *result = xmalloc (len1 + len2 + 1);
4720 strcpy (result, s1);
4721 strcpy (result + len1, s2);
4722 *(result + len1 + len2) = 0;
4728 concat3 (s1, s2, s3)
4731 return concat (concat (s1, s2), s3);
4735 concat4 (s1, s2, s3, s4)
4736 char *s1, *s2, *s3, *s4;
4738 return concat (concat (s1, s2), concat (s3, s4));
4742 concat6 (s1, s2, s3, s4, s5, s6)
4743 char *s1, *s2, *s3, *s4, *s5, *s6;
4745 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4749 save_string (s, len)
4753 register char *result = xmalloc (len + 1);
4755 bcopy (s, result, len);
4761 pfatal_with_name (name)
4766 if (errno < sys_nerr)
4767 s = concat ("%s: ", sys_errlist[errno]);
4769 s = "cannot open %s";
4774 perror_with_name (name)
4779 if (errno < sys_nerr)
4780 s = concat ("%s: ", sys_errlist[errno]);
4782 s = "cannot open %s";
4792 if (errno < sys_nerr)
4793 s = concat ("installation problem, cannot exec %s: ", sys_errlist[errno]);
4795 s = "installation problem, cannot exec %s";
4799 /* More 'friendly' abort that prints the line and file.
4800 config.h can #define abort fancy_abort if you like that sort of thing. */
4805 fatal ("Internal gcc abort.");
4810 /* Output an error message and exit */
4813 fatal VPROTO((char *format, ...))
4820 VA_START (ap, format);
4823 format = va_arg (ap, char*);
4826 fprintf (stderr, "%s: ", programname);
4827 vfprintf (stderr, format, ap);
4829 fprintf (stderr, "\n");
4830 delete_temp_files ();
4835 error VPROTO((char *format, ...))
4842 VA_START (ap, format);
4845 format = va_arg (ap, char*);
4848 fprintf (stderr, "%s: ", programname);
4849 vfprintf (stderr, format, ap);
4852 fprintf (stderr, "\n");
4855 #else /* not HAVE_VPRINTF */
4858 fatal (msg, arg1, arg2)
4859 char *msg, *arg1, *arg2;
4861 error (msg, arg1, arg2);
4862 delete_temp_files ();
4867 error (msg, arg1, arg2)
4868 char *msg, *arg1, *arg2;
4870 fprintf (stderr, "%s: ", programname);
4871 fprintf (stderr, msg, arg1, arg2);
4872 fprintf (stderr, "\n");
4875 #endif /* not HAVE_VPRINTF */
4879 validate_all_switches ()
4881 struct compiler *comp;
4884 struct spec_list *spec;
4886 for (comp = compilers; comp->spec[0]; comp++)
4889 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4893 if (c == '%' && *p == '{')
4894 /* We have a switch spec. */
4895 validate_switches (p + 1);
4899 /* look through the linked list of extra specs read from the specs file */
4900 for (spec = specs; spec ; spec = spec->next)
4904 if (c == '%' && *p == '{')
4905 /* We have a switch spec. */
4906 validate_switches (p + 1);
4909 p = link_command_spec;
4911 if (c == '%' && *p == '{')
4912 /* We have a switch spec. */
4913 validate_switches (p + 1);
4915 /* Now notice switches mentioned in the machine-specific specs. */
4919 if (c == '%' && *p == '{')
4920 /* We have a switch spec. */
4921 validate_switches (p + 1);
4925 if (c == '%' && *p == '{')
4926 /* We have a switch spec. */
4927 validate_switches (p + 1);
4931 if (c == '%' && *p == '{')
4932 /* We have a switch spec. */
4933 validate_switches (p + 1);
4935 p = signed_char_spec;
4937 if (c == '%' && *p == '{')
4938 /* We have a switch spec. */
4939 validate_switches (p + 1);
4943 if (c == '%' && *p == '{')
4944 /* We have a switch spec. */
4945 validate_switches (p + 1);
4949 if (c == '%' && *p == '{')
4950 /* We have a switch spec. */
4951 validate_switches (p + 1);
4955 if (c == '%' && *p == '{')
4956 /* We have a switch spec. */
4957 validate_switches (p + 1);
4961 if (c == '%' && *p == '{')
4962 /* We have a switch spec. */
4963 validate_switches (p + 1);
4967 if (c == '%' && *p == '{')
4968 /* We have a switch spec. */
4969 validate_switches (p + 1);
4973 if (c == '%' && *p == '{')
4974 /* We have a switch spec. */
4975 validate_switches (p + 1);
4978 /* Look at the switch-name that comes after START
4979 and mark as valid all supplied switches that match it. */
4982 validate_switches (start)
4985 register char *p = start;
5000 while (*p != ':' && *p != '}') p++;
5004 else if (p[-1] == '*')
5006 /* Mark all matching switches as valid. */
5008 for (i = 0; i < n_switches; i++)
5009 if (!strncmp (switches[i].part1, filter, p - filter))
5010 switches[i].valid = 1;
5014 /* Mark an exact matching switch as valid. */
5015 for (i = 0; i < n_switches; i++)
5017 if (!strncmp (switches[i].part1, filter, p - filter)
5018 && switches[i].part1[p - filter] == 0)
5019 switches[i].valid = 1;
5024 /* Check whether a particular argument was used. */
5033 for (i = 0; i < n_switches; i++)
5034 if (! strncmp (switches[i].part1, p, len)
5035 && strlen (switches[i].part1) == len)
5040 /* Work out the subdirectory to use based on the
5041 options. The format of multilib_select is a list of elements.
5042 Each element is a subdirectory name followed by a list of options
5043 followed by a semicolon. gcc will consider each line in turn. If
5044 none of the options beginning with an exclamation point are
5045 present, and all of the other options are present, that
5046 subdirectory will be used. */
5051 char *p = multilib_select;
5053 char *this_path, *this_arg;
5058 /* Ignore newlines. */
5065 /* Get the initial path. */
5073 this_path_len = p - this_path;
5075 /* Check the arguments. */
5090 while (*p != ' ' && *p != ';')
5097 if (*this_arg == '!')
5098 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5100 failed = ! used_arg (this_arg, p - this_arg);
5108 if (this_path_len != 1
5109 || this_path[0] != '.')
5111 multilib_dir = xmalloc (this_path_len + 1);
5112 strncpy (multilib_dir, this_path, this_path_len);
5113 multilib_dir[this_path_len] = '\0';
5122 /* Print out the multiple library subdirectory selection
5123 information. This prints out a series of lines. Each line looks
5124 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5125 required. Only the desired options are printed out, the negative
5126 matches. The options are print without a leading dash. There are
5127 no spaces to make it easy to use the information in the shell.
5128 Each subdirectory is printed only once. This assumes the ordering
5129 generated by the genmultilib script. */
5132 print_multilib_info ()
5134 char *p = multilib_select;
5135 char *last_path, *this_path;
5137 int last_path_len = 0;
5141 /* Ignore newlines. */
5148 /* Get the initial path. */
5157 /* If this is a duplicate, skip it. */
5158 skip = (p - this_path == last_path_len
5159 && ! strncmp (last_path, this_path, last_path_len));
5161 last_path = this_path;
5162 last_path_len = p - this_path;
5168 for (p1 = last_path; p1 < p; p1++)
5187 use_arg = *p != '!';
5192 while (*p != ' ' && *p != ';')