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, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
34 #include <sys/types.h>
42 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
61 /* Include multi-lib information. */
71 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
74 #define WTERMSIG(S) ((S) & 0x7f)
77 #define WIFEXITED(S) (((S) & 0xff) == 0)
80 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
83 /* Add prototype support. */
85 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
86 #define PROTO(ARGS) ARGS
88 #define PROTO(ARGS) ()
94 #define PVPROTO(ARGS) ARGS
95 #define VPROTO(ARGS) ARGS
96 #define VA_START(va_list,var) va_start(va_list,var)
98 #define PVPROTO(ARGS) ()
99 #define VPROTO(ARGS) (va_alist) va_dcl
100 #define VA_START(va_list,var) va_start(va_list)
104 /* Define a generic NULL if one hasn't already been defined. */
110 /* Define O_RDONLY if the system hasn't defined it for us. */
116 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
117 #define GENERIC_PTR void *
119 #define GENERIC_PTR char *
124 #define NULL_PTR ((GENERIC_PTR)0)
131 /* On MSDOS, write temp files in current dir
132 because there's no place else we can expect to use. */
139 /* Test if something is a normal file. */
141 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
144 /* Test if something is a directory. */
146 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
149 /* By default there is no special suffix for executables. */
150 #ifndef EXECUTABLE_SUFFIX
151 #define EXECUTABLE_SUFFIX ""
154 /* By default, the suffix for object files is ".o". */
156 #define HAVE_OBJECT_SUFFIX
158 #define OBJECT_SUFFIX ".o"
161 /* By default, colon separates directories in a path. */
162 #ifndef PATH_SEPARATOR
163 #define PATH_SEPARATOR ':'
166 #ifndef DIR_SEPARATOR
167 #define DIR_SEPARATOR '/'
170 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
172 #define obstack_chunk_alloc xmalloc
173 #define obstack_chunk_free free
176 extern char *getenv ();
183 #ifndef HAVE_STRERROR
185 extern const char *const sys_errlist[];
187 extern char *sys_errlist[];
190 extern char *strerror();
193 extern int execv (), execvp ();
195 /* If a stage of compilation returns an exit status >= 1,
196 compilation of that file ceases. */
198 #define MIN_FATAL_STATUS 1
200 /* Flag saying to print the directories gcc will search through looking for
201 programs, libraries, etc. */
203 static int print_search_dirs;
205 /* Flag saying to print the full filename of this file
206 as found through our usual search mechanism. */
208 static char *print_file_name = NULL;
210 /* As print_file_name, but search for executable file. */
212 static char *print_prog_name = NULL;
214 /* Flag saying to print the relative path we'd use to
215 find libgcc.a given the current compiler flags. */
217 static int print_multi_directory;
219 /* Flag saying to print the list of subdirectories and
220 compiler flags used to select them in a standard form. */
222 static int print_multi_lib;
224 /* Flag indicating whether we should print the command and arguments */
226 static int verbose_flag;
228 /* Nonzero means write "temp" files in source directory
229 and use the source file's name in them, and don't delete them. */
231 static int save_temps_flag;
233 /* The compiler version. */
235 static char *compiler_version;
237 /* The target version specified with -V */
239 static char *spec_version = DEFAULT_TARGET_VERSION;
241 /* The target machine specified with -b. */
243 static char *spec_machine = DEFAULT_TARGET_MACHINE;
245 /* Nonzero if cross-compiling.
246 When -b is used, the value comes from the `specs' file. */
249 static int cross_compile = 1;
251 static int cross_compile = 0;
254 /* The number of errors that have occurred; the link phase will not be
255 run if this is non-zero. */
256 static int error_count = 0;
258 /* This is the obstack which we use to allocate many strings. */
260 static struct obstack obstack;
262 /* This is the obstack to build an environment variable to pass to
263 collect2 that describes all of the relevant switches of what to
264 pass the compiler in building the list of pointers to constructors
267 static struct obstack collect_obstack;
269 extern char *version_string;
271 /* Forward declaration for prototypes. */
274 static void set_spec PROTO((char *, char *));
275 static struct compiler *lookup_compiler PROTO((char *, int, char *));
276 static char *build_search_list PROTO((struct path_prefix *, char *, int));
277 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
278 static char *find_a_file PROTO((struct path_prefix *, char *, int));
279 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
280 static char *skip_whitespace PROTO((char *));
281 static void record_temp_file PROTO((char *, int, int));
282 static void delete_if_ordinary PROTO((char *));
283 static void delete_temp_files PROTO((void));
284 static void delete_failure_queue PROTO((void));
285 static void clear_failure_queue PROTO((void));
286 static char *choose_temp_base_try PROTO((char *, char *));
287 static void choose_temp_base PROTO((void));
288 static int check_live_switch PROTO((int, int));
289 static char *handle_braces PROTO((char *));
290 static char *save_string PROTO((char *, int));
291 static char *concat PROTO((char *, char *));
292 static char *concat3 PROTO((char *, char *, char *));
293 static char *concat4 PROTO((char *, char *, char *, char *));
294 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
296 static int do_spec PROTO((char *));
297 static int do_spec_1 PROTO((char *, int, char *));
298 static char *find_file PROTO((char *));
299 static int is_directory PROTO((char *, char *, int));
300 static void validate_switches PROTO((char *));
301 static void validate_all_switches PROTO((void));
302 static void give_switch PROTO((int, int));
303 static int used_arg PROTO((char *, int));
304 static int default_arg PROTO((char *, int));
305 static void set_multilib_dir PROTO((void));
306 static void print_multilib_info PROTO((void));
307 static void pfatal_with_name PROTO((char *));
308 static void perror_with_name PROTO((char *));
309 static void perror_exec PROTO((char *));
311 static void fatal PVPROTO((char *, ...));
312 static void error PVPROTO((char *, ...));
314 /* We must not provide any prototype here, even if ANSI C. */
315 static void fatal PROTO(());
316 static void error PROTO(());
323 /* Specs are strings containing lines, each of which (if not blank)
324 is made up of a program name, and arguments separated by spaces.
325 The program name must be exact and start from root, since no path
326 is searched and it is unreliable to depend on the current working directory.
327 Redirection of input or output is not supported; the subprograms must
328 accept filenames saying what files to read and write.
330 In addition, the specs can contain %-sequences to substitute variable text
331 or for conditional text. Here is a table of all defined %-sequences.
332 Note that spaces are not generated automatically around the results of
333 expanding these sequences; therefore, you can concatenate them together
334 or with constant text in a single argument.
336 %% substitute one % into the program name or argument.
337 %i substitute the name of the input file being processed.
338 %b substitute the basename of the input file being processed.
339 This is the substring up to (and not including) the last period
340 and not including the directory.
341 %g substitute the temporary-file-name-base. This is a string chosen
342 once per compilation. Different temporary file names are made by
343 concatenation of constant strings on the end, as in `%g.s'.
344 %g also has the same effect of %d.
345 %u like %g, but make the temporary file name unique.
346 %U returns the last file name generated with %u.
347 %d marks the argument containing or following the %d as a
348 temporary file name, so that that file will be deleted if CC exits
349 successfully. Unlike %g, this contributes no text to the argument.
350 %w marks the argument containing or following the %w as the
351 "output file" of this compilation. This puts the argument
352 into the sequence of arguments that %o will substitute later.
354 like %{...} but mark last argument supplied within
355 as a file to be deleted on failure.
356 %o substitutes the names of all the output files, with spaces
357 automatically placed around them. You should write spaces
358 around the %o as well or the results are undefined.
359 %o is for use in the specs for running the linker.
360 Input files whose names have no recognized suffix are not compiled
361 at all, but they are included among the output files, so they will
363 %O substitutes the suffix for object files.
364 %p substitutes the standard macro predefinitions for the
365 current target machine. Use this when running cpp.
366 %P like %p, but puts `__' before and after the name of each macro.
367 (Except macros that already have __.)
369 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
370 %s current argument is the name of a library or startup file of some sort.
371 Search for that file in a standard list of directories
372 and substitute the full name found.
373 %eSTR Print STR as an error message. STR is terminated by a newline.
374 Use this when inconsistent options are detected.
375 %x{OPTION} Accumulate an option for %X.
376 %X Output the accumulated linker options specified by compilations.
377 %Y Output the accumulated assembler options specified by compilations.
378 %Z Output the accumulated preprocessor options specified by compilations.
379 %v1 Substitute the major version number of GCC.
380 (For version 2.5.n, this is 2.)
381 %v2 Substitute the minor version number of GCC.
382 (For version 2.5.n, this is 5.)
383 %a process ASM_SPEC as a spec.
384 This allows config.h to specify part of the spec for running as.
385 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
386 used here. This can be used to run a post-processor after the
387 assembler has done it's job.
388 %D Dump out a -L option for each directory in startfile_prefixes.
389 If multilib_dir is set, extra entries are generated with it affixed.
390 %l process LINK_SPEC as a spec.
391 %L process LIB_SPEC as a spec.
392 %G process LIBGCC_SPEC as a spec.
393 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
394 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
395 %c process SIGNED_CHAR_SPEC as a spec.
396 %C process CPP_SPEC as a spec. A capital C is actually used here.
397 %1 process CC1_SPEC as a spec.
398 %2 process CC1PLUS_SPEC as a spec.
399 %| output "-" if the input for the current command is coming from a pipe.
400 %* substitute the variable part of a matched option. (See below.)
401 Note that each comma in the substituted string is replaced by
403 %{S} substitutes the -S switch, if that switch was given to CC.
404 If that switch was not specified, this substitutes nothing.
405 Here S is a metasyntactic variable.
406 %{S*} substitutes all the switches specified to CC whose names start
407 with -S. This is used for -o, -D, -I, etc; switches that take
408 arguments. CC considers `-o foo' as being one switch whose
409 name starts with `o'. %{o*} would substitute this text,
410 including the space; thus, two arguments would be generated.
411 %{S*:X} substitutes X if one or more switches whose names start with -S are
412 specified to CC. Note that the tail part of the -S option
413 (i.e. the part matched by the `*') will be substituted for each
414 occurrence of %* within X.
415 %{S:X} substitutes X, but only if the -S switch was given to CC.
416 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
417 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
418 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
419 %{.S:X} substitutes X, but only if processing a file with suffix S.
420 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
421 %(Spec) processes a specification defined in a specs file as *Spec:
422 %[Spec] as above, but put __ around -D arguments
424 The conditional text X in a %{S:X} or %{!S:X} construct may contain
425 other nested % constructs or spaces, or even newlines. They are
426 processed as usual, as described above.
428 The -O, -f, -m, and -W switches are handled specifically in these
429 constructs. If another value of -O or the negated form of a -f, -m, or
430 -W switch is found later in the command line, the earlier switch
431 value is ignored, except with {S*} where S is just one letter; this
432 passes all matching options.
434 The character | is used to indicate that a command should be piped to
435 the following command, but only if -pipe is specified.
437 Note that it is built into CC which switches take arguments and which
438 do not. You might think it would be useful to generalize this to
439 allow each compiler's spec to say which switches take arguments. But
440 this cannot be done in a consistent fashion. CC cannot even decide
441 which input files have been specified without knowing which switches
442 take arguments, and it must know which input files to compile in order
443 to tell which compilers to run.
445 CC also knows implicitly that arguments starting in `-l' are to be
446 treated as compiler output files, and passed to the linker in their
447 proper position among the other output files. */
449 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
451 /* config.h can define ASM_SPEC to provide extra args to the assembler
452 or extra switch-translations. */
457 /* config.h can define ASM_FINAL_SPEC to run a post processor after
458 the assembler has run. */
459 #ifndef ASM_FINAL_SPEC
460 #define ASM_FINAL_SPEC ""
463 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
464 or extra switch-translations. */
469 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
470 or extra switch-translations. */
475 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
476 or extra switch-translations. */
478 #define CC1PLUS_SPEC ""
481 /* config.h can define LINK_SPEC to provide extra args to the linker
482 or extra switch-translations. */
487 /* config.h can define LIB_SPEC to override the default libraries. */
489 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
492 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
495 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
496 /* Have gcc do the search for libgcc.a. */
497 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
499 #define LIBGCC_SPEC "%{!shared:-lgcc}"
503 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
504 #ifndef STARTFILE_SPEC
505 #define STARTFILE_SPEC \
506 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
509 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
510 Make the string nonempty to require spaces there. */
511 #ifndef SWITCHES_NEED_SPACES
512 #define SWITCHES_NEED_SPACES ""
515 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
517 #define ENDFILE_SPEC ""
520 /* This spec is used for telling cpp whether char is signed or not. */
521 #ifndef SIGNED_CHAR_SPEC
522 /* Use #if rather than ?:
523 because MIPS C compiler rejects like ?: in initializers. */
524 #if DEFAULT_SIGNED_CHAR
525 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
527 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
531 /* MULTILIB_SELECT comes from multilib.h. It gives a
532 string interpreted by set_multilib_dir to select a library
533 subdirectory based on the compiler options. */
534 #ifndef MULTILIB_SELECT
535 #define MULTILIB_SELECT ". ;"
538 static char *cpp_spec = CPP_SPEC;
539 static char *cpp_predefines = CPP_PREDEFINES;
540 static char *cc1_spec = CC1_SPEC;
541 static char *cc1plus_spec = CC1PLUS_SPEC;
542 static char *signed_char_spec = SIGNED_CHAR_SPEC;
543 static char *asm_spec = ASM_SPEC;
544 static char *asm_final_spec = ASM_FINAL_SPEC;
545 static char *link_spec = LINK_SPEC;
546 static char *lib_spec = LIB_SPEC;
547 static char *libgcc_spec = LIBGCC_SPEC;
548 static char *endfile_spec = ENDFILE_SPEC;
549 static char *startfile_spec = STARTFILE_SPEC;
550 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
551 static char *multilib_select = MULTILIB_SELECT;
553 /* This defines which switch letters take arguments. */
555 #ifndef SWITCH_TAKES_ARG
556 #define SWITCH_TAKES_ARG(CHAR) \
557 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
558 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
559 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
560 || (CHAR) == 'L' || (CHAR) == 'A')
563 /* This defines which multi-letter switches take arguments. */
565 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
566 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
567 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
568 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
569 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
570 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
571 || !strcmp (STR, "isystem"))
573 #ifndef WORD_SWITCH_TAKES_ARG
574 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
577 /* Record the mapping from file suffixes for compilation specs. */
581 char *suffix; /* Use this compiler for input files
582 whose names end in this suffix. */
584 char *spec[4]; /* To use this compiler, concatenate these
585 specs and pass to do_spec. */
588 /* Pointer to a vector of `struct compiler' that gives the spec for
589 compiling a file, based on its suffix.
590 A file that does not end in any of these suffixes will be passed
591 unchanged to the loader and nothing else will be done to it.
593 An entry containing two 0s is used to terminate the vector.
595 If multiple entries match a file, the last matching one is used. */
597 static struct compiler *compilers;
599 /* Number of entries in `compilers', not counting the null terminator. */
601 static int n_compilers;
603 /* The default list of file name suffixes and their compilation specs. */
605 static struct compiler default_compilers[] =
609 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
610 %{C:%{!E:%eGNU C does not support -C without using -E}}\
611 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
612 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
613 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
614 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
615 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
616 %{traditional-cpp:-traditional}\
617 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
618 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
619 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
620 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
621 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
622 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
624 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
625 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
627 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
628 %{!pipe:%g.s} %A\n }}}}"},
630 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
631 %{C:%{!E:%eGNU C does not support -C without using -E}}\
632 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
633 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
634 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
635 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
636 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
637 %{traditional-cpp:-traditional}\
638 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
640 %{!E:%e-E required when input is from standard input}"},
641 {".m", "@objective-c"},
643 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
644 %{C:%{!E:%eGNU C does not support -C without using -E}}\
645 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
646 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
647 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
648 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
649 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
650 %{traditional-cpp:-traditional}\
651 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
652 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
653 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
654 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
655 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
656 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
657 -lang-objc %{gen-decls} \
659 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
660 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
662 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
663 %{!pipe:%g.s} %A\n }}}}"},
666 "%{!E:%eCompilation of header file requested} \
667 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
668 %{C:%{!E:%eGNU C does not support -C without using -E}}\
669 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
670 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
671 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
672 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
673 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
674 %{traditional-cpp:-traditional}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
677 {".i", "@cpp-output"},
679 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
680 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
681 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
683 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
684 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
686 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
687 %{!pipe:%g.s} %A\n }}}}"},
688 {".s", "@assembler"},
690 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
691 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
693 {".S", "@assembler-with-cpp"},
694 {"@assembler-with-cpp",
695 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
696 %{C:%{!E:%eGNU C does not support -C without using -E}}\
697 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
698 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
699 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
700 %{traditional-cpp:-traditional}\
701 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
702 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
703 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
704 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
705 %{!pipe:%g.s} %A\n }}}}"},
707 /* Mark end of table */
711 /* Number of elements in default_compilers, not counting the terminator. */
713 static int n_default_compilers
714 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
716 /* Here is the spec for running the linker, after compiling all files. */
718 /* -u* was put back because both BSD and SysV seem to support it. */
719 /* %{static:} simply prevents an error message if the target machine
720 doesn't handle -static. */
721 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
722 scripts which exist in user specified directories, or in standard
724 #ifdef LINK_LIBGCC_SPECIAL
725 /* Don't generate -L options. */
726 static char *link_command_spec = "\
728 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
729 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
730 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
731 %{static:} %{L*} %{T*} %o\
732 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
733 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
736 static char *link_command_spec = "\
738 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
739 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
740 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
741 %{static:} %{L*} %D %{T*} %o\
742 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
743 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
746 /* A vector of options to give to the linker.
747 These options are accumulated by %x,
748 and substituted into the linker command with %X. */
749 static int n_linker_options;
750 static char **linker_options;
752 /* A vector of options to give to the assembler.
753 These options are accumulated by -Wa,
754 and substituted into the assembler command with %Y. */
755 static int n_assembler_options;
756 static char **assembler_options;
758 /* A vector of options to give to the preprocessor.
759 These options are accumulated by -Wp,
760 and substituted into the preprocessor command with %Z. */
761 static int n_preprocessor_options;
762 static char **preprocessor_options;
764 /* Define how to map long options into short ones. */
766 /* This structure describes one mapping. */
769 /* The long option's name. */
771 /* The equivalent short option. */
773 /* Argument info. A string of flag chars; NULL equals no options.
774 a => argument required.
775 o => argument optional.
776 j => join argument to equivalent, making one word.
777 * => require other text after NAME as an argument. */
781 /* This is the table of mappings. Mappings are tried sequentially
782 for each option encountered; the first one that matches, wins. */
784 struct option_map option_map[] =
786 {"--all-warnings", "-Wall", 0},
787 {"--ansi", "-ansi", 0},
788 {"--assemble", "-S", 0},
789 {"--assert", "-A", "a"},
790 {"--comments", "-C", 0},
791 {"--compile", "-c", 0},
792 {"--debug", "-g", "oj"},
793 {"--define-macro", "-D", "a"},
794 {"--dependencies", "-M", 0},
795 {"--dump", "-d", "a"},
796 {"--dumpbase", "-dumpbase", "a"},
797 {"--entry", "-e", 0},
798 {"--extra-warnings", "-W", 0},
799 {"--for-assembler", "-Wa", "a"},
800 {"--for-linker", "-Xlinker", "a"},
801 {"--force-link", "-u", "a"},
802 {"--imacros", "-imacros", "a"},
803 {"--include", "-include", "a"},
804 {"--include-barrier", "-I-", 0},
805 {"--include-directory", "-I", "a"},
806 {"--include-directory-after", "-idirafter", "a"},
807 {"--include-prefix", "-iprefix", "a"},
808 {"--include-with-prefix", "-iwithprefix", "a"},
809 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
810 {"--include-with-prefix-after", "-iwithprefix", "a"},
811 {"--language", "-x", "a"},
812 {"--library-directory", "-L", "a"},
813 {"--machine", "-m", "aj"},
814 {"--machine-", "-m", "*j"},
815 {"--no-line-commands", "-P", 0},
816 {"--no-precompiled-includes", "-noprecomp", 0},
817 {"--no-standard-includes", "-nostdinc", 0},
818 {"--no-standard-libraries", "-nostdlib", 0},
819 {"--no-warnings", "-w", 0},
820 {"--optimize", "-O", "oj"},
821 {"--output", "-o", "a"},
822 {"--pedantic", "-pedantic", 0},
823 {"--pedantic-errors", "-pedantic-errors", 0},
824 {"--pipe", "-pipe", 0},
825 {"--prefix", "-B", "a"},
826 {"--preprocess", "-E", 0},
827 {"--print-search-dirs", "-print-search-dirs", 0},
828 {"--print-file-name", "-print-file-name=", "aj"},
829 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
830 {"--print-missing-file-dependencies", "-MG", 0},
831 {"--print-multi-lib", "-print-multi-lib", 0},
832 {"--print-multi-directory", "-print-multi-directory", 0},
833 {"--print-prog-name", "-print-prog-name=", "aj"},
834 {"--profile", "-p", 0},
835 {"--profile-blocks", "-a", 0},
836 {"--quiet", "-q", 0},
837 {"--save-temps", "-save-temps", 0},
838 {"--shared", "-shared", 0},
839 {"--silent", "-q", 0},
840 {"--static", "-static", 0},
841 {"--symbolic", "-symbolic", 0},
842 {"--target", "-b", "a"},
843 {"--trace-includes", "-H", 0},
844 {"--traditional", "-traditional", 0},
845 {"--traditional-cpp", "-traditional-cpp", 0},
846 {"--trigraphs", "-trigraphs", 0},
847 {"--undefine-macro", "-U", "a"},
848 {"--use-version", "-V", "a"},
849 {"--user-dependencies", "-MM", 0},
850 {"--verbose", "-v", 0},
851 {"--version", "-dumpversion", 0},
852 {"--warn-", "-W", "*j"},
853 {"--write-dependencies", "-MD", 0},
854 {"--write-user-dependencies", "-MMD", 0},
858 /* Translate the options described by *ARGCP and *ARGVP.
859 Make a new vector and store it back in *ARGVP,
860 and store its length in *ARGVC. */
863 translate_options (argcp, argvp)
869 char **argv = *argvp;
870 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
874 newv[newindex++] = argv[i++];
878 /* Translate -- options. */
879 if (argv[i][0] == '-' && argv[i][1] == '-')
881 /* Find a mapping that applies to this option. */
882 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
884 int optlen = strlen (option_map[j].name);
885 int arglen = strlen (argv[i]);
886 int complen = arglen > optlen ? optlen : arglen;
887 char *arginfo = option_map[j].arg_info;
892 if (!strncmp (argv[i], option_map[j].name, complen))
899 k < sizeof (option_map) / sizeof (option_map[0]);
901 if (strlen (option_map[k].name) >= arglen
902 && !strncmp (argv[i], option_map[k].name, arglen))
904 error ("Ambiguous abbreviation %s", argv[i]);
908 if (k != sizeof (option_map) / sizeof (option_map[0]))
914 /* If the option has an argument, accept that. */
915 if (argv[i][optlen] == '=')
916 arg = argv[i] + optlen + 1;
918 /* If this mapping requires extra text at end of name,
919 accept that as "argument". */
920 else if (index (arginfo, '*') != 0)
921 arg = argv[i] + optlen;
923 /* Otherwise, extra text at end means mismatch.
924 Try other mappings. */
929 else if (index (arginfo, '*') != 0)
931 error ("Incomplete `%s' option", option_map[j].name);
935 /* Handle arguments. */
936 if (index (arginfo, 'a') != 0)
942 error ("Missing argument to `%s' option",
950 else if (index (arginfo, '*') != 0)
952 else if (index (arginfo, 'o') == 0)
955 error ("Extraneous argument to `%s' option",
960 /* Store the translation as one argv elt or as two. */
961 if (arg != 0 && index (arginfo, 'j') != 0)
962 newv[newindex++] = concat (option_map[j].equivalent, arg);
965 newv[newindex++] = option_map[j].equivalent;
966 newv[newindex++] = arg;
969 newv[newindex++] = option_map[j].equivalent;
977 /* Handle old-fashioned options--just copy them through,
978 with their arguments. */
979 else if (argv[i][0] == '-')
981 char *p = argv[i] + 1;
985 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
986 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
987 else if (WORD_SWITCH_TAKES_ARG (p))
988 nskip += WORD_SWITCH_TAKES_ARG (p);
989 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
992 else if (! strcmp (p, "Xlinker"))
995 /* Watch out for an option at the end of the command line that
996 is missing arguments, and avoid skipping past the end of the
998 if (nskip + i > argc)
1003 newv[newindex++] = argv[i++];
1008 /* Ordinary operands, or +e options. */
1009 newv[newindex++] = argv[i++];
1023 #ifdef HAVE_STRERROR
1028 static char buffer[30];
1032 if (e > 0 && e < sys_nerr)
1033 return sys_errlist[e];
1035 sprintf (buffer, "Unknown error %d", e);
1040 /* Read compilation specs from a file named FILENAME,
1041 replacing the default ones.
1043 A suffix which starts with `*' is a definition for
1044 one of the machine-specific sub-specs. The "suffix" should be
1045 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1046 The corresponding spec is stored in asm_spec, etc.,
1047 rather than in the `compilers' vector.
1049 Anything invalid in the file is a fatal error. */
1052 read_specs (filename)
1057 struct stat statbuf;
1062 fprintf (stderr, "Reading specs from %s\n", filename);
1064 /* Open and stat the file. */
1065 desc = open (filename, O_RDONLY, 0);
1067 pfatal_with_name (filename);
1068 if (stat (filename, &statbuf) < 0)
1069 pfatal_with_name (filename);
1071 /* Read contents of file into BUFFER. */
1072 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1073 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1075 pfatal_with_name (filename);
1076 buffer[readlen] = 0;
1079 /* Scan BUFFER for specs, putting them in the vector. */
1085 char *in, *out, *p1, *p2;
1087 /* Advance P in BUFFER to the next nonblank nocomment line. */
1088 p = skip_whitespace (p);
1092 /* Find the colon that should end the suffix. */
1094 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1095 /* The colon shouldn't be missing. */
1097 fatal ("specs file malformed after %d characters", p1 - buffer);
1098 /* Skip back over trailing whitespace. */
1100 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1101 /* Copy the suffix to a string. */
1102 suffix = save_string (p, p2 - p);
1103 /* Find the next line. */
1104 p = skip_whitespace (p1 + 1);
1106 fatal ("specs file malformed after %d characters", p - buffer);
1108 /* Find next blank line. */
1109 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1110 /* Specs end at the blank line and do not include the newline. */
1111 spec = save_string (p, p1 - p);
1114 /* Delete backslash-newline sequences from the spec. */
1119 if (in[0] == '\\' && in[1] == '\n')
1121 else if (in[0] == '#')
1123 while (*in && *in != '\n') in++;
1130 if (suffix[0] == '*')
1132 if (! strcmp (suffix, "*link_command"))
1133 link_command_spec = spec;
1135 set_spec (suffix + 1, spec);
1139 /* Add this pair to the vector. */
1141 = ((struct compiler *)
1142 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1143 compilers[n_compilers].suffix = suffix;
1144 bzero ((char *) compilers[n_compilers].spec,
1145 sizeof compilers[n_compilers].spec);
1146 compilers[n_compilers].spec[0] = spec;
1148 bzero ((char *) &compilers[n_compilers],
1149 sizeof compilers[n_compilers]);
1153 link_command_spec = spec;
1156 if (link_command_spec == 0)
1157 fatal ("spec file has no spec for linking");
1166 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1167 be considered whitespace. */
1168 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1170 else if (*p == '\n' || *p == ' ' || *p == '\t')
1174 while (*p != '\n') p++;
1184 /* Structure to keep track of the specs that have been defined so far. These
1185 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1189 char *name; /* Name of the spec. */
1190 char *spec; /* The spec itself. */
1191 struct spec_list *next; /* Next spec in linked list. */
1194 /* List of specs that have been defined so far. */
1196 static struct spec_list *specs = (struct spec_list *) 0;
1198 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1199 removed; If the spec starts with a + then SPEC is added to the end of the
1203 set_spec (name, spec)
1207 struct spec_list *sl;
1210 /* See if the spec already exists */
1211 for (sl = specs; sl; sl = sl->next)
1212 if (strcmp (sl->name, name) == 0)
1217 /* Not found - make it */
1218 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1219 sl->name = save_string (name, strlen (name));
1220 sl->spec = save_string ("", 0);
1225 old_spec = sl->spec;
1226 if (name && spec[0] == '+' && isspace (spec[1]))
1227 sl->spec = concat (old_spec, spec + 1);
1229 sl->spec = save_string (spec, strlen (spec));
1231 if (! strcmp (name, "asm"))
1232 asm_spec = sl->spec;
1233 else if (! strcmp (name, "asm_final"))
1234 asm_final_spec = sl->spec;
1235 else if (! strcmp (name, "cc1"))
1236 cc1_spec = sl->spec;
1237 else if (! strcmp (name, "cc1plus"))
1238 cc1plus_spec = sl->spec;
1239 else if (! strcmp (name, "cpp"))
1240 cpp_spec = sl->spec;
1241 else if (! strcmp (name, "endfile"))
1242 endfile_spec = sl->spec;
1243 else if (! strcmp (name, "lib"))
1244 lib_spec = sl->spec;
1245 else if (! strcmp (name, "libgcc"))
1246 libgcc_spec = sl->spec;
1247 else if (! strcmp (name, "link"))
1248 link_spec = sl->spec;
1249 else if (! strcmp (name, "predefines"))
1250 cpp_predefines = sl->spec;
1251 else if (! strcmp (name, "signed_char"))
1252 signed_char_spec = sl->spec;
1253 else if (! strcmp (name, "startfile"))
1254 startfile_spec = sl->spec;
1255 else if (! strcmp (name, "switches_need_spaces"))
1256 switches_need_spaces = sl->spec;
1257 else if (! strcmp (name, "cross_compile"))
1258 cross_compile = atoi (sl->spec);
1259 else if (! strcmp (name, "multilib"))
1260 multilib_select = sl->spec;
1261 /* Free the old spec */
1266 /* Accumulate a command (program name and args), and run it. */
1268 /* Vector of pointers to arguments in the current line of specifications. */
1270 static char **argbuf;
1272 /* Number of elements allocated in argbuf. */
1274 static int argbuf_length;
1276 /* Number of elements in argbuf currently in use (containing args). */
1278 static int argbuf_index;
1280 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1281 temp file. Used only if MKTEMP_EACH_FILE. */
1283 static struct temp_name {
1284 char *suffix; /* suffix associated with the code. */
1285 int length; /* strlen (suffix). */
1286 int unique; /* Indicates whether %g or %u/%U was used. */
1287 char *filename; /* associated filename. */
1288 int filename_length; /* strlen (filename). */
1289 struct temp_name *next;
1292 /* Number of commands executed so far. */
1294 static int execution_count;
1296 /* Number of commands that exited with a signal. */
1298 static int signal_count;
1300 /* Name with which this program was invoked. */
1302 static char *programname;
1304 /* Structures to keep track of prefixes to try when looking for files. */
1308 char *prefix; /* String to prepend to the path. */
1309 struct prefix_list *next; /* Next in linked list. */
1310 int require_machine_suffix; /* Don't use without machine_suffix. */
1311 /* 2 means try both machine_suffix and just_machine_suffix. */
1312 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1317 struct prefix_list *plist; /* List of prefixes to try */
1318 int max_len; /* Max length of a prefix in PLIST */
1319 char *name; /* Name of this list (used in config stuff) */
1322 /* List of prefixes to try when looking for executables. */
1324 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1326 /* List of prefixes to try when looking for startup (crt0) files. */
1328 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1330 /* List of prefixes to try when looking for include files. */
1332 static struct path_prefix include_prefixes = { 0, 0, "include" };
1334 /* Suffix to attach to directories searched for commands.
1335 This looks like `MACHINE/VERSION/'. */
1337 static char *machine_suffix = 0;
1339 /* Suffix to attach to directories searched for commands.
1340 This is just `MACHINE/'. */
1342 static char *just_machine_suffix = 0;
1344 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1346 static char *gcc_exec_prefix;
1348 /* Default prefixes to attach to command names. */
1350 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1351 #undef MD_EXEC_PREFIX
1352 #undef MD_STARTFILE_PREFIX
1353 #undef MD_STARTFILE_PREFIX_1
1356 #ifndef STANDARD_EXEC_PREFIX
1357 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1358 #endif /* !defined STANDARD_EXEC_PREFIX */
1360 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1361 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1362 #ifdef MD_EXEC_PREFIX
1363 static char *md_exec_prefix = MD_EXEC_PREFIX;
1366 #ifndef STANDARD_STARTFILE_PREFIX
1367 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1368 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1370 #ifdef MD_STARTFILE_PREFIX
1371 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1373 #ifdef MD_STARTFILE_PREFIX_1
1374 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1376 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1377 static char *standard_startfile_prefix_1 = "/lib/";
1378 static char *standard_startfile_prefix_2 = "/usr/lib/";
1380 #ifndef TOOLDIR_BASE_PREFIX
1381 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1383 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1384 static char *tooldir_prefix;
1386 /* Subdirectory to use for locating libraries. Set by
1387 set_multilib_dir based on the compilation options. */
1389 static char *multilib_dir;
1391 /* Clear out the vector of arguments (after a command is executed). */
1399 /* Add one argument to the vector at the end.
1400 This is done when a space is seen or at the end of the line.
1401 If DELETE_ALWAYS is nonzero, the arg is a filename
1402 and the file should be deleted eventually.
1403 If DELETE_FAILURE is nonzero, the arg is a filename
1404 and the file should be deleted if this compilation fails. */
1407 store_arg (arg, delete_always, delete_failure)
1409 int delete_always, delete_failure;
1411 if (argbuf_index + 1 == argbuf_length)
1413 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1416 argbuf[argbuf_index++] = arg;
1417 argbuf[argbuf_index] = 0;
1419 if (delete_always || delete_failure)
1420 record_temp_file (arg, delete_always, delete_failure);
1423 /* Record the names of temporary files we tell compilers to write,
1424 and delete them at the end of the run. */
1426 /* This is the common prefix we use to make temp file names.
1427 It is chosen once for each run of this program.
1428 It is substituted into a spec by %g.
1429 Thus, all temp file names contain this prefix.
1430 In practice, all temp file names start with this prefix.
1432 This prefix comes from the envvar TMPDIR if it is defined;
1433 otherwise, from the P_tmpdir macro if that is defined;
1434 otherwise, in /usr/tmp or /tmp. */
1436 static char *temp_filename;
1438 /* Length of the prefix. */
1440 static int temp_filename_length;
1442 /* Define the list of temporary files to delete. */
1447 struct temp_file *next;
1450 /* Queue of files to delete on success or failure of compilation. */
1451 static struct temp_file *always_delete_queue;
1452 /* Queue of files to delete on failure of compilation. */
1453 static struct temp_file *failure_delete_queue;
1455 /* Record FILENAME as a file to be deleted automatically.
1456 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1457 otherwise delete it in any case.
1458 FAIL_DELETE nonzero means delete it if a compilation step fails;
1459 otherwise delete it in any case. */
1462 record_temp_file (filename, always_delete, fail_delete)
1467 register char *name;
1468 name = xmalloc (strlen (filename) + 1);
1469 strcpy (name, filename);
1473 register struct temp_file *temp;
1474 for (temp = always_delete_queue; temp; temp = temp->next)
1475 if (! strcmp (name, temp->name))
1477 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1478 temp->next = always_delete_queue;
1480 always_delete_queue = temp;
1486 register struct temp_file *temp;
1487 for (temp = failure_delete_queue; temp; temp = temp->next)
1488 if (! strcmp (name, temp->name))
1490 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1491 temp->next = failure_delete_queue;
1493 failure_delete_queue = temp;
1498 /* Delete all the temporary files whose names we previously recorded. */
1501 delete_if_ordinary (name)
1508 printf ("Delete %s? (y or n) ", name);
1512 while ((c = getchar ()) != '\n' && c != EOF) ;
1513 if (i == 'y' || i == 'Y')
1515 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1516 if (unlink (name) < 0)
1518 perror_with_name (name);
1522 delete_temp_files ()
1524 register struct temp_file *temp;
1526 for (temp = always_delete_queue; temp; temp = temp->next)
1527 delete_if_ordinary (temp->name);
1528 always_delete_queue = 0;
1531 /* Delete all the files to be deleted on error. */
1534 delete_failure_queue ()
1536 register struct temp_file *temp;
1538 for (temp = failure_delete_queue; temp; temp = temp->next)
1539 delete_if_ordinary (temp->name);
1543 clear_failure_queue ()
1545 failure_delete_queue = 0;
1548 /* Compute a string to use as the base of all temporary file names.
1549 It is substituted for %g. */
1552 choose_temp_base_try (try, base)
1559 else if (try == (char *)0)
1561 else if (access (try, R_OK | W_OK) != 0)
1574 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1575 base = choose_temp_base_try (getenv ("TMP"), base);
1576 base = choose_temp_base_try (getenv ("TEMP"), base);
1579 base = choose_temp_base_try (P_tmpdir, base);
1582 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1583 dir_separator_str, "tmp"),
1585 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1587 /* If all else fails, use the current directory! */
1588 if (base == (char *)0) base = concat(".", dir_separator_str);
1590 len = strlen (base);
1591 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1593 strcpy (temp_filename, base);
1594 if (len > 0 && temp_filename[len-1] != '/'
1595 && temp_filename[len-1] != DIR_SEPARATOR)
1596 temp_filename[len++] = DIR_SEPARATOR;
1597 strcpy (temp_filename + len, "ccXXXXXX");
1599 mktemp (temp_filename);
1600 temp_filename_length = strlen (temp_filename);
1601 if (temp_filename_length == 0)
1606 /* Routine to add variables to the environment. We do this to pass
1607 the pathname of the gcc driver, and the directories search to the
1608 collect2 program, which is being run as ld. This way, we can be
1609 sure of executing the right compiler when collect2 wants to build
1610 constructors and destructors. Since the environment variables we
1611 use come from an obstack, we don't have to worry about allocating
1620 #ifndef VMS /* nor about VMS */
1622 extern char **environ;
1623 char **old_environ = environ;
1630 while ((ch = *p++) != '\0' && ch != '=')
1636 /* Search for replacing an existing environment variable, and
1637 count the number of total environment variables. */
1638 for (envp = old_environ; *envp; envp++)
1641 if (!strncmp (str, *envp, name_len))
1648 /* Add a new environment variable */
1649 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1651 bcopy ((char *) old_environ, (char *) (environ + 1),
1652 sizeof (char *) * (num_envs+1));
1657 #endif /* HAVE_PUTENV */
1660 /* Build a list of search directories from PATHS.
1661 PREFIX is a string to prepend to the list.
1662 If CHECK_DIR_P is non-zero we ensure the directory exists.
1663 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1664 It is also used by the --print-search-dirs flag. */
1667 build_search_list (paths, prefix, check_dir_p)
1668 struct path_prefix *paths;
1672 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1674 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1675 int first_time = TRUE;
1676 struct prefix_list *pprefix;
1678 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1680 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1682 int len = strlen (pprefix->prefix);
1686 || is_directory (pprefix->prefix, machine_suffix, 0)))
1689 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1692 obstack_grow (&collect_obstack, pprefix->prefix, len);
1693 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1696 if (just_machine_suffix
1697 && pprefix->require_machine_suffix == 2
1699 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1702 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1705 obstack_grow (&collect_obstack, pprefix->prefix, len);
1706 obstack_grow (&collect_obstack, just_machine_suffix,
1710 if (!pprefix->require_machine_suffix)
1713 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1716 obstack_grow (&collect_obstack, pprefix->prefix, len);
1719 obstack_1grow (&collect_obstack, '\0');
1720 return obstack_finish (&collect_obstack);
1723 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1726 putenv_from_prefixes (paths, env_var)
1727 struct path_prefix *paths;
1730 putenv (build_search_list (paths, env_var, 1));
1733 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1734 access to check permissions.
1735 Return 0 if not found, otherwise return its name, allocated with malloc. */
1738 find_a_file (pprefix, name, mode)
1739 struct path_prefix *pprefix;
1744 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1745 struct prefix_list *pl;
1746 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1749 len += strlen (machine_suffix);
1751 temp = xmalloc (len);
1753 /* Determine the filename to execute (special case for absolute paths). */
1755 if (*name == '/' || *name == DIR_SEPARATOR)
1757 if (access (name, mode))
1759 strcpy (temp, name);
1764 for (pl = pprefix->plist; pl; pl = pl->next)
1768 /* Some systems have a suffix for executable files.
1769 So try appending that first. */
1770 if (file_suffix[0] != 0)
1772 strcpy (temp, pl->prefix);
1773 strcat (temp, machine_suffix);
1774 strcat (temp, name);
1775 strcat (temp, file_suffix);
1776 if (access (temp, mode) == 0)
1778 if (pl->used_flag_ptr != 0)
1779 *pl->used_flag_ptr = 1;
1784 /* Now try just the name. */
1785 strcpy (temp, pl->prefix);
1786 strcat (temp, machine_suffix);
1787 strcat (temp, name);
1788 if (access (temp, mode) == 0)
1790 if (pl->used_flag_ptr != 0)
1791 *pl->used_flag_ptr = 1;
1796 /* Certain prefixes are tried with just the machine type,
1797 not the version. This is used for finding as, ld, etc. */
1798 if (just_machine_suffix && pl->require_machine_suffix == 2)
1800 /* Some systems have a suffix for executable files.
1801 So try appending that first. */
1802 if (file_suffix[0] != 0)
1804 strcpy (temp, pl->prefix);
1805 strcat (temp, just_machine_suffix);
1806 strcat (temp, name);
1807 strcat (temp, file_suffix);
1808 if (access (temp, mode) == 0)
1810 if (pl->used_flag_ptr != 0)
1811 *pl->used_flag_ptr = 1;
1816 strcpy (temp, pl->prefix);
1817 strcat (temp, just_machine_suffix);
1818 strcat (temp, name);
1819 if (access (temp, mode) == 0)
1821 if (pl->used_flag_ptr != 0)
1822 *pl->used_flag_ptr = 1;
1827 /* Certain prefixes can't be used without the machine suffix
1828 when the machine or version is explicitly specified. */
1829 if (!pl->require_machine_suffix)
1831 /* Some systems have a suffix for executable files.
1832 So try appending that first. */
1833 if (file_suffix[0] != 0)
1835 strcpy (temp, pl->prefix);
1836 strcat (temp, name);
1837 strcat (temp, file_suffix);
1838 if (access (temp, mode) == 0)
1840 if (pl->used_flag_ptr != 0)
1841 *pl->used_flag_ptr = 1;
1846 strcpy (temp, pl->prefix);
1847 strcat (temp, name);
1848 if (access (temp, mode) == 0)
1850 if (pl->used_flag_ptr != 0)
1851 *pl->used_flag_ptr = 1;
1861 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1862 at the start of the list, otherwise it goes at the end.
1864 If WARN is nonzero, we will warn if no file is found
1865 through this prefix. WARN should point to an int
1866 which will be set to 1 if this entry is used.
1868 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1869 the complete value of machine_suffix.
1870 2 means try both machine_suffix and just_machine_suffix. */
1873 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1874 struct path_prefix *pprefix;
1877 int require_machine_suffix;
1880 struct prefix_list *pl, **prev;
1883 if (!first && pprefix->plist)
1885 for (pl = pprefix->plist; pl->next; pl = pl->next)
1890 prev = &pprefix->plist;
1892 /* Keep track of the longest prefix */
1894 len = strlen (prefix);
1895 if (len > pprefix->max_len)
1896 pprefix->max_len = len;
1898 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1899 pl->prefix = save_string (prefix, len);
1900 pl->require_machine_suffix = require_machine_suffix;
1901 pl->used_flag_ptr = warn;
1908 pl->next = (struct prefix_list *) 0;
1912 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1915 unused_prefix_warnings (pprefix)
1916 struct path_prefix *pprefix;
1918 struct prefix_list *pl = pprefix->plist;
1922 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1924 error ("file path prefix `%s' never used",
1926 /* Prevent duplicate warnings. */
1927 *pl->used_flag_ptr = 1;
1933 /* Get rid of all prefixes built up so far in *PLISTP. */
1936 free_path_prefix (pprefix)
1937 struct path_prefix *pprefix;
1939 struct prefix_list *pl = pprefix->plist;
1940 struct prefix_list *temp;
1946 free (temp->prefix);
1947 free ((char *) temp);
1949 pprefix->plist = (struct prefix_list *) 0;
1952 /* stdin file number. */
1953 #define STDIN_FILE_NO 0
1955 /* stdout file number. */
1956 #define STDOUT_FILE_NO 1
1958 /* value of `pipe': port index for reading. */
1961 /* value of `pipe': port index for writing. */
1962 #define WRITE_PORT 1
1964 /* Pipe waiting from last process, to be used as input for the next one.
1965 Value is STDIN_FILE_NO if no pipe is waiting
1966 (i.e. the next command is the first of a group). */
1968 static int last_pipe_input;
1970 /* Fork one piped subcommand. FUNC is the system call to use
1971 (either execv or execvp). ARGV is the arg vector to use.
1972 NOT_LAST is nonzero if this is not the last subcommand
1973 (i.e. its output should be piped to the next one.) */
1977 #include <process.h>
1979 pexecute (search_flag, program, argv, not_last)
1986 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1990 int i, el = search_flag ? 0 : 4;
1992 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1993 rf = scmd + strlen(program) + 2 + el;
1994 sprintf (scmd, "%s%s @%s.gp", program,
1995 (search_flag ? "" : ".exe"), temp_filename);
1996 argfile = fopen (rf, "w");
1998 pfatal_with_name (rf);
2000 for (i=1; argv[i]; i++)
2003 for (cp = argv[i]; *cp; cp++)
2005 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2006 fputc ('\\', argfile);
2007 fputc (*cp, argfile);
2009 fputc ('\n', argfile);
2020 perror_exec (program);
2021 return MIN_FATAL_STATUS << 8;
2028 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2031 pexecute (search_flag, program, argv, not_last)
2037 int (*func)() = (search_flag ? execv : execvp);
2040 int input_desc = last_pipe_input;
2041 int output_desc = STDOUT_FILE_NO;
2042 int retries, sleep_interval;
2044 /* If this isn't the last process, make a pipe for its output,
2045 and record it as waiting to be the input to the next process. */
2049 if (pipe (pdes) < 0)
2050 pfatal_with_name ("pipe");
2051 output_desc = pdes[WRITE_PORT];
2052 last_pipe_input = pdes[READ_PORT];
2055 last_pipe_input = STDIN_FILE_NO;
2057 /* Fork a subprocess; wait and retry if it fails. */
2059 for (retries = 0; retries < 4; retries++)
2064 sleep (sleep_interval);
2065 sleep_interval *= 2;
2072 pfatal_with_name ("fork");
2074 pfatal_with_name ("vfork");
2080 /* Move the input and output pipes into place, if nec. */
2081 if (input_desc != STDIN_FILE_NO)
2083 close (STDIN_FILE_NO);
2087 if (output_desc != STDOUT_FILE_NO)
2089 close (STDOUT_FILE_NO);
2091 close (output_desc);
2094 /* Close the parent's descs that aren't wanted here. */
2095 if (last_pipe_input != STDIN_FILE_NO)
2096 close (last_pipe_input);
2098 /* Exec the program. */
2099 (*func) (program, argv);
2100 perror_exec (program);
2106 /* In the parent, after forking.
2107 Close the descriptors that we made for this child. */
2108 if (input_desc != STDIN_FILE_NO)
2110 if (output_desc != STDOUT_FILE_NO)
2111 close (output_desc);
2113 /* Return child's process number. */
2118 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2123 pexecute (search_flag, program, argv, not_last)
2129 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2136 pexecute (search_flag, program, argv, not_last)
2142 return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
2147 /* Execute the command specified by the arguments on the current line of spec.
2148 When using pipes, this includes several piped-together commands
2149 with `|' between them.
2151 Return 0 if successful, -1 if failed. */
2157 int n_commands; /* # of command. */
2161 char *prog; /* program name. */
2162 char **argv; /* vector of args. */
2163 int pid; /* pid of process for this command. */
2166 struct command *commands; /* each command buffer with above info. */
2168 /* Count # of piped commands. */
2169 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2170 if (strcmp (argbuf[i], "|") == 0)
2173 /* Get storage for each command. */
2175 = (struct command *) alloca (n_commands * sizeof (struct command));
2177 /* Split argbuf into its separate piped processes,
2178 and record info about each one.
2179 Also search for the programs that are to be run. */
2181 commands[0].prog = argbuf[0]; /* first command. */
2182 commands[0].argv = &argbuf[0];
2183 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2185 commands[0].argv[0] = string;
2187 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2188 if (strcmp (argbuf[i], "|") == 0)
2189 { /* each command. */
2191 fatal ("-pipe not supported under MS-DOS");
2193 argbuf[i] = 0; /* termination of command args. */
2194 commands[n_commands].prog = argbuf[i + 1];
2195 commands[n_commands].argv = &argbuf[i + 1];
2196 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2198 commands[n_commands].argv[0] = string;
2202 argbuf[argbuf_index] = 0;
2204 /* If -v, print what we are about to do, and maybe query. */
2208 /* Print each piped command as a separate line. */
2209 for (i = 0; i < n_commands ; i++)
2213 for (j = commands[i].argv; *j; j++)
2214 fprintf (stderr, " %s", *j);
2216 /* Print a pipe symbol after all but the last command. */
2217 if (i + 1 != n_commands)
2218 fprintf (stderr, " |");
2219 fprintf (stderr, "\n");
2223 fprintf (stderr, "\nGo ahead? (y or n) ");
2227 while (getchar () != '\n') ;
2228 if (i != 'y' && i != 'Y')
2233 /* Run each piped subprocess. */
2235 last_pipe_input = STDIN_FILE_NO;
2236 for (i = 0; i < n_commands; i++)
2238 char *string = commands[i].argv[0];
2240 commands[i].pid = pexecute (string != commands[i].prog,
2241 string, commands[i].argv,
2242 i + 1 < n_commands);
2244 if (string != commands[i].prog)
2250 /* Wait for all the subprocesses to finish.
2251 We don't care what order they finish in;
2252 we know that N_COMMANDS waits will get them all.
2253 Ignore subprocesses that we don't know about,
2254 since they can be spawned by the process that exec'ed us. */
2259 for (i = 0; i < n_commands; )
2266 status = pid = commands[i].pid;
2269 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2271 pid = wait (&status);
2277 for (j = 0; j < n_commands; j++)
2278 if (commands[j].pid == pid)
2283 if (WIFSIGNALED (status))
2285 fatal ("Internal compiler error: program %s got fatal signal %d",
2286 commands[j].prog, WTERMSIG (status));
2290 else if (WIFEXITED (status)
2291 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2301 /* Find all the switches given to us
2302 and make a vector describing them.
2303 The elements of the vector are strings, one per switch given.
2304 If a switch uses following arguments, then the `part1' field
2305 is the switch itself and the `args' field
2306 is a null-terminated vector containing the following arguments.
2307 The `live_cond' field is 1 if the switch is true in a conditional spec,
2308 -1 if false (overridden by a later switch), and is initialized to zero.
2309 The `valid' field is nonzero if any spec has looked at this switch;
2310 if it remains zero at the end of the run, it must be meaningless. */
2320 static struct switchstr *switches;
2322 static int n_switches;
2330 #if defined(FREEBSD_NATIVE) && defined(__i386__)
2331 static int objformat_aout = 0;
2334 /* Also a vector of input files specified. */
2336 static struct infile *infiles;
2338 static int n_infiles;
2340 /* And a vector of corresponding output files is made up later. */
2342 static char **outfiles;
2344 /* Create the vector `switches' and its contents.
2345 Store its length in `n_switches'. */
2348 process_command (argc, argv)
2354 char *spec_lang = 0;
2355 int last_language_n_infiles;
2357 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2362 /* Figure compiler version from version string. */
2364 compiler_version = save_string (version_string, strlen (version_string));
2365 for (temp = compiler_version; *temp; ++temp)
2374 /* Set up the default search paths. */
2376 if (gcc_exec_prefix)
2378 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2379 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2382 /* COMPILER_PATH and LIBRARY_PATH have values
2383 that are lists of directory names with colons. */
2385 temp = getenv ("COMPILER_PATH");
2388 char *startp, *endp;
2389 char *nstore = (char *) alloca (strlen (temp) + 3);
2391 startp = endp = temp;
2394 if (*endp == PATH_SEPARATOR || *endp == 0)
2396 strncpy (nstore, startp, endp-startp);
2398 strcpy (nstore, concat (".", dir_separator_str));
2399 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2401 nstore[endp-startp] = DIR_SEPARATOR;
2402 nstore[endp-startp+1] = 0;
2405 nstore[endp-startp] = 0;
2406 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2409 endp = startp = endp + 1;
2416 temp = getenv ("LIBRARY_PATH");
2417 if (temp && ! cross_compile)
2419 char *startp, *endp;
2420 char *nstore = (char *) alloca (strlen (temp) + 3);
2422 startp = endp = temp;
2425 if (*endp == PATH_SEPARATOR || *endp == 0)
2427 strncpy (nstore, startp, endp-startp);
2429 strcpy (nstore, concat (".", dir_separator_str));
2430 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2432 nstore[endp-startp] = DIR_SEPARATOR;
2433 nstore[endp-startp+1] = 0;
2436 nstore[endp-startp] = 0;
2437 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2440 endp = startp = endp + 1;
2447 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2448 temp = getenv ("LPATH");
2449 if (temp && ! cross_compile)
2451 char *startp, *endp;
2452 char *nstore = (char *) alloca (strlen (temp) + 3);
2454 startp = endp = temp;
2457 if (*endp == PATH_SEPARATOR || *endp == 0)
2459 strncpy (nstore, startp, endp-startp);
2461 strcpy (nstore, concat (".", dir_separator_str));
2462 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2464 nstore[endp-startp] = DIR_SEPARATOR;
2465 nstore[endp-startp+1] = 0;
2468 nstore[endp-startp] = 0;
2469 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2472 endp = startp = endp + 1;
2479 #if defined(FREEBSD_NATIVE) && defined(__i386__)
2481 /* first hint is /etc/objformat */
2482 FILE *fp = fopen("/etc/objformat", "r");
2486 while (fgets(buf, sizeof(buf) - 1, fp) != NULL) {
2488 if (buf[i - 1] == '\n')
2490 if (strcmp(buf, "OBJFORMAT=aout") == 0)
2492 else if (strcmp(buf, "OBJFORMAT=elf") == 0)
2495 fprintf(stderr, "Unrecognized line in /etc/objformat: %s\n", buf);
2499 /* but the user $OBJFORMAT overrides system default */
2500 temp = getenv("OBJFORMAT");
2502 if (strcmp(temp, "aout") == 0)
2504 else if (strcmp(temp, "elf") == 0)
2507 fprintf(stderr, "Unrecognized value of $OBJFORMAT: %s\n", temp);
2512 /* Convert new-style -- options to old-style. */
2513 translate_options (&argc, &argv);
2515 /* Scan argv twice. Here, the first time, just count how many switches
2516 there will be in their vector, and how many input files in theirs.
2517 Here we also parse the switches that cc itself uses (e.g. -v). */
2519 for (i = 1; i < argc; i++)
2521 #if defined(FREEBSD_NATIVE) && defined(__i386__)
2522 /* .. and command line args override all */
2523 if (strcmp (argv[i], "-aout") == 0)
2528 else if (strcmp (argv[i], "-elf") == 0)
2534 if (! strcmp (argv[i], "-dumpspecs"))
2536 printf ("*asm:\n%s\n\n", asm_spec);
2537 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2538 printf ("*cpp:\n%s\n\n", cpp_spec);
2539 printf ("*cc1:\n%s\n\n", cc1_spec);
2540 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2541 printf ("*endfile:\n%s\n\n", endfile_spec);
2542 printf ("*link:\n%s\n\n", link_spec);
2543 printf ("*lib:\n%s\n\n", lib_spec);
2544 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2545 printf ("*startfile:\n%s\n\n", startfile_spec);
2546 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2547 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2548 printf ("*predefines:\n%s\n\n", cpp_predefines);
2549 printf ("*cross_compile:\n%d\n\n", cross_compile);
2550 printf ("*multilib:\n%s\n\n", multilib_select);
2554 else if (! strcmp (argv[i], "-dumpversion"))
2556 printf ("%s\n", version_string);
2559 else if (! strcmp (argv[i], "-dumpmachine"))
2561 printf ("%s\n", spec_machine);
2564 else if (! strcmp (argv[i], "-print-search-dirs"))
2565 print_search_dirs = 1;
2566 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2567 print_file_name = "libgcc.a";
2568 else if (! strncmp (argv[i], "-print-file-name=", 17))
2569 print_file_name = argv[i] + 17;
2570 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2571 print_prog_name = argv[i] + 17;
2572 else if (! strcmp (argv[i], "-print-multi-lib"))
2573 print_multi_lib = 1;
2574 else if (! strcmp (argv[i], "-print-multi-directory"))
2575 print_multi_directory = 1;
2576 else if (! strncmp (argv[i], "-Wa,", 4))
2579 /* Pass the rest of this option to the assembler. */
2581 n_assembler_options++;
2582 if (!assembler_options)
2584 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2587 = (char **) xrealloc (assembler_options,
2588 n_assembler_options * sizeof (char **));
2590 /* Split the argument at commas. */
2592 for (j = 4; argv[i][j]; j++)
2593 if (argv[i][j] == ',')
2595 assembler_options[n_assembler_options - 1]
2596 = save_string (argv[i] + prev, j - prev);
2597 n_assembler_options++;
2599 = (char **) xrealloc (assembler_options,
2600 n_assembler_options * sizeof (char **));
2603 /* Record the part after the last comma. */
2604 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2606 else if (! strncmp (argv[i], "-Wp,", 4))
2609 /* Pass the rest of this option to the preprocessor. */
2611 n_preprocessor_options++;
2612 if (!preprocessor_options)
2613 preprocessor_options
2614 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2616 preprocessor_options
2617 = (char **) xrealloc (preprocessor_options,
2618 n_preprocessor_options * sizeof (char **));
2620 /* Split the argument at commas. */
2622 for (j = 4; argv[i][j]; j++)
2623 if (argv[i][j] == ',')
2625 preprocessor_options[n_preprocessor_options - 1]
2626 = save_string (argv[i] + prev, j - prev);
2627 n_preprocessor_options++;
2628 preprocessor_options
2629 = (char **) xrealloc (preprocessor_options,
2630 n_preprocessor_options * sizeof (char **));
2633 /* Record the part after the last comma. */
2634 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2636 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2637 /* The +e options to the C++ front-end. */
2639 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2642 /* Split the argument at commas. */
2643 for (j = 3; argv[i][j]; j++)
2644 n_infiles += (argv[i][j] == ',');
2646 else if (strcmp (argv[i], "-Xlinker") == 0)
2649 fatal ("argument to `-Xlinker' is missing");
2654 else if (strncmp (argv[i], "-l", 2) == 0)
2656 else if (argv[i][0] == '-' && argv[i][1] != 0)
2658 register char *p = &argv[i][1];
2659 register int c = *p;
2664 if (p[1] == 0 && i + 1 == argc)
2665 fatal ("argument to `-b' is missing");
2667 spec_machine = argv[++i];
2669 spec_machine = p + 1;
2674 int *temp = (int *) xmalloc (sizeof (int));
2676 if (p[1] == 0 && i + 1 == argc)
2677 fatal ("argument to `-B' is missing");
2682 add_prefix (&exec_prefixes, value, 1, 0, temp);
2683 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2684 add_prefix (&include_prefixes, concat (value, "include"),
2687 /* As a kludge, if the arg is "[foo/]stageN/", just add
2688 "[foo/]include" to the include prefix. */
2690 int len = strlen (value);
2693 && (value[len - 8] == '/'
2694 || value[len - 8] == DIR_SEPARATOR)))
2695 && strncmp (value + len - 7, "stage", 5) == 0
2696 && isdigit (value[len - 2])
2697 && (value[len - 1] == '/'
2698 || value[len - 1] == DIR_SEPARATOR))
2701 add_prefix (&include_prefixes, "include", 1, 0, 0);
2704 char *string = xmalloc (len + 1);
2705 strncpy (string, value, len-7);
2706 strcat (string, "include");
2707 add_prefix (&include_prefixes, string, 1, 0, 0);
2714 case 'v': /* Print our subcommands and print versions. */
2716 /* If they do anything other than exactly `-v', don't set
2717 verbose_flag; rather, continue on to give the error. */
2724 if (p[1] == 0 && i + 1 == argc)
2725 fatal ("argument to `-V' is missing");
2727 spec_version = argv[++i];
2729 spec_version = p + 1;
2730 compiler_version = spec_version;
2734 if (!strcmp (p, "save-temps"))
2736 save_temps_flag = 1;
2743 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2744 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2745 else if (WORD_SWITCH_TAKES_ARG (p))
2746 i += WORD_SWITCH_TAKES_ARG (p);
2753 /* Set up the search paths before we go looking for config files. */
2755 /* These come before the md prefixes so that we will find gcc's subcommands
2756 (such as cpp) rather than those of the host system. */
2757 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2758 as well as trying the machine and the version. */
2759 #ifdef FREEBSD_NATIVE
2760 #if defined(__i386__)
2761 if (objformat_aout) {
2762 n_switches++; /* add implied -maout */
2763 add_prefix (&exec_prefixes, "/usr/libexec/aout/", 0, 0, NULL_PTR);
2765 add_prefix (&exec_prefixes, "/usr/libexec/elf/", 0, 0, NULL_PTR);
2767 add_prefix (&exec_prefixes, "/usr/libexec/", 0, 0, NULL_PTR);
2768 add_prefix (&exec_prefixes, "/usr/bin/", 0, 0, NULL_PTR);
2769 add_prefix (&startfile_prefixes, "/usr/libdata/gcc/", 0, 0, NULL_PTR);
2770 #else /* not FREEBSD_NATIVE */
2772 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2773 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2776 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2777 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2778 #endif /* FREEBSD_NATIVE */
2780 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2783 /* If tooldir is relative, base it on exec_prefixes. A relative
2784 tooldir lets us move the installed tree as a unit.
2786 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2787 directories, so that we can search both the user specified directory
2788 and the standard place. */
2790 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2792 if (gcc_exec_prefix)
2794 char *gcc_exec_tooldir_prefix
2795 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2796 spec_version, dir_separator_str, tooldir_prefix);
2798 add_prefix (&exec_prefixes,
2799 concat3 (gcc_exec_tooldir_prefix, "bin",
2802 add_prefix (&startfile_prefixes,
2803 concat3 (gcc_exec_tooldir_prefix, "lib",
2808 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2809 dir_separator_str, spec_version,
2810 dir_separator_str, tooldir_prefix);
2813 #ifndef FREEBSD_NATIVE
2814 add_prefix (&exec_prefixes,
2815 concat3 (tooldir_prefix, "bin", dir_separator_str),
2817 add_prefix (&startfile_prefixes,
2818 concat3 (tooldir_prefix, "lib", dir_separator_str),
2820 #endif /* FREEBSD_NATIVE */
2822 /* More prefixes are enabled in main, after we read the specs file
2823 and determine whether this is cross-compilation or not. */
2826 /* Then create the space for the vectors and scan again. */
2828 switches = ((struct switchstr *)
2829 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2830 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2833 last_language_n_infiles = -1;
2835 /* This, time, copy the text of each switch and store a pointer
2836 to the copy in the vector of switches.
2837 Store all the infiles in their vector. */
2839 #if defined(FREEBSD_NATIVE) && defined(__i386__)
2840 if (objformat_aout == 1) {
2841 switches[n_switches].part1 = "maout";
2842 switches[n_switches].args = 0;
2843 switches[n_switches].live_cond = 0;
2844 switches[n_switches].valid = 0;
2846 putenv("OBJFORMAT=aout");
2848 putenv("OBJFORMAT=elf");
2852 for (i = 1; i < argc; i++)
2854 /* Just skip the switches that were handled by the preceding loop. */
2855 if (! strncmp (argv[i], "-Wa,", 4))
2857 else if (! strncmp (argv[i], "-Wp,", 4))
2859 else if (! strcmp (argv[i], "-print-search-dirs"))
2861 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2863 else if (! strncmp (argv[i], "-print-file-name=", 17))
2865 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2867 else if (! strcmp (argv[i], "-print-multi-lib"))
2869 else if (! strcmp (argv[i], "-print-multi-directory"))
2871 #if defined(FREEBSD_NATIVE) && defined(__i386__)
2872 else if (! strcmp (argv[i], "-aout"))
2874 else if (! strcmp (argv[i], "-elf"))
2877 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2879 /* Compensate for the +e options to the C++ front-end;
2880 they're there simply for cfront call-compatibility. We do
2881 some magic in default_compilers to pass them down properly.
2882 Note we deliberately start at the `+' here, to avoid passing
2883 -e0 or -e1 down into the linker. */
2884 switches[n_switches].part1 = &argv[i][0];
2885 switches[n_switches].args = 0;
2886 switches[n_switches].live_cond = 0;
2887 switches[n_switches].valid = 0;
2890 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2893 /* Split the argument at commas. */
2895 for (j = 4; argv[i][j]; j++)
2896 if (argv[i][j] == ',')
2898 infiles[n_infiles].language = 0;
2899 infiles[n_infiles++].name
2900 = save_string (argv[i] + prev, j - prev);
2903 /* Record the part after the last comma. */
2904 infiles[n_infiles].language = 0;
2905 infiles[n_infiles++].name = argv[i] + prev;
2907 else if (strcmp (argv[i], "-Xlinker") == 0)
2909 infiles[n_infiles].language = 0;
2910 infiles[n_infiles++].name = argv[++i];
2912 else if (strncmp (argv[i], "-l", 2) == 0)
2914 infiles[n_infiles].language = 0;
2915 infiles[n_infiles++].name = argv[i];
2917 else if (argv[i][0] == '-' && argv[i][1] != 0)
2919 register char *p = &argv[i][1];
2920 register int c = *p;
2922 if (c == 'B' || c == 'b' || c == 'V')
2924 /* Skip a separate arg, if any. */
2931 if (p[1] == 0 && i + 1 == argc)
2932 fatal ("argument to `-x' is missing");
2934 spec_lang = argv[++i];
2937 if (! strcmp (spec_lang, "none"))
2938 /* Suppress the warning if -xnone comes after the last input
2939 file, because alternate command interfaces like g++ might
2940 find it useful to place -xnone after each input file. */
2943 last_language_n_infiles = n_infiles;
2946 switches[n_switches].part1 = p;
2947 /* Deal with option arguments in separate argv elements. */
2948 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2949 || WORD_SWITCH_TAKES_ARG (p))
2952 int n_args = WORD_SWITCH_TAKES_ARG (p);
2956 /* Count only the option arguments in separate argv elements. */
2957 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2959 if (i + n_args >= argc)
2960 fatal ("argument to `-%s' is missing", p);
2961 switches[n_switches].args
2962 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2964 switches[n_switches].args[j++] = argv[++i];
2965 /* Null-terminate the vector. */
2966 switches[n_switches].args[j] = 0;
2968 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2970 /* On some systems, ld cannot handle -o or -L without space.
2971 So split the -o or -L from its argument. */
2972 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2973 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2974 switches[n_switches].args[0] = xmalloc (strlen (p));
2975 strcpy (switches[n_switches].args[0], &p[1]);
2976 switches[n_switches].args[1] = 0;
2979 switches[n_switches].args = 0;
2981 switches[n_switches].live_cond = 0;
2982 switches[n_switches].valid = 0;
2983 /* This is always valid, since gcc.c itself understands it. */
2984 if (!strcmp (p, "save-temps"))
2985 switches[n_switches].valid = 1;
2990 #ifdef HAVE_OBJECT_SUFFIX
2991 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2992 if (strlen (argv[i]) > 2
2993 && argv[i][strlen (argv[i]) - 2] == '.'
2994 && argv[i][strlen (argv[i]) - 1] == 'o')
2998 for (j = 0; j < strlen (argv[i]) - 2; j++)
2999 obstack_1grow (&obstack, argv[i][j]);
3001 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3002 obstack_1grow (&obstack, 0);
3003 argv[i] = obstack_finish (&obstack);
3007 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3009 perror_with_name (argv[i]);
3014 infiles[n_infiles].language = spec_lang;
3015 infiles[n_infiles++].name = argv[i];
3020 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3021 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3023 switches[n_switches].part1 = 0;
3024 infiles[n_infiles].name = 0;
3027 /* Process a spec string, accumulating and running commands. */
3029 /* These variables describe the input file name.
3030 input_file_number is the index on outfiles of this file,
3031 so that the output file name can be stored for later use by %o.
3032 input_basename is the start of the part of the input file
3033 sans all directory names, and basename_length is the number
3034 of characters starting there excluding the suffix .c or whatever. */
3036 static char *input_filename;
3037 static int input_file_number;
3038 static int input_filename_length;
3039 static int basename_length;
3040 static char *input_basename;
3041 static char *input_suffix;
3043 /* These are variables used within do_spec and do_spec_1. */
3045 /* Nonzero if an arg has been started and not yet terminated
3046 (with space, tab or newline). */
3047 static int arg_going;
3049 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3050 is a temporary file name. */
3051 static int delete_this_arg;
3053 /* Nonzero means %w has been seen; the next arg to be terminated
3054 is the output file name of this compilation. */
3055 static int this_is_output_file;
3057 /* Nonzero means %s has been seen; the next arg to be terminated
3058 is the name of a library file and we should try the standard
3059 search dirs for it. */
3060 static int this_is_library_file;
3062 /* Nonzero means that the input of this command is coming from a pipe. */
3063 static int input_from_pipe;
3065 /* Process the spec SPEC and run the commands specified therein.
3066 Returns 0 if the spec is successfully processed; -1 if failed. */
3076 delete_this_arg = 0;
3077 this_is_output_file = 0;
3078 this_is_library_file = 0;
3079 input_from_pipe = 0;
3081 value = do_spec_1 (spec, 0, NULL_PTR);
3083 /* Force out any unfinished command.
3084 If -pipe, this forces out the last command if it ended in `|'. */
3087 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3090 if (argbuf_index > 0)
3097 /* Process the sub-spec SPEC as a portion of a larger spec.
3098 This is like processing a whole spec except that we do
3099 not initialize at the beginning and we do not supply a
3100 newline by default at the end.
3101 INSWITCH nonzero means don't process %-sequences in SPEC;
3102 in this case, % is treated as an ordinary character.
3103 This is used while substituting switches.
3104 INSWITCH nonzero also causes SPC not to terminate an argument.
3106 Value is zero unless a line was finished
3107 and the command on that line reported an error. */
3110 do_spec_1 (spec, inswitch, soft_matched_part)
3113 char *soft_matched_part;
3115 register char *p = spec;
3122 /* If substituting a switch, treat all chars like letters.
3123 Otherwise, NL, SPC, TAB and % are special. */
3124 switch (inswitch ? 'a' : c)
3127 /* End of line: finish any pending argument,
3128 then run the pending command if one has been started. */
3131 obstack_1grow (&obstack, 0);
3132 string = obstack_finish (&obstack);
3133 if (this_is_library_file)
3134 string = find_file (string);
3135 store_arg (string, delete_this_arg, this_is_output_file);
3136 if (this_is_output_file)
3137 outfiles[input_file_number] = string;
3141 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3143 for (i = 0; i < n_switches; i++)
3144 if (!strcmp (switches[i].part1, "pipe"))
3147 /* A `|' before the newline means use a pipe here,
3148 but only if -pipe was specified.
3149 Otherwise, execute now and don't pass the `|' as an arg. */
3152 input_from_pipe = 1;
3153 switches[i].valid = 1;
3160 if (argbuf_index > 0)
3166 /* Reinitialize for a new command, and for a new argument. */
3169 delete_this_arg = 0;
3170 this_is_output_file = 0;
3171 this_is_library_file = 0;
3172 input_from_pipe = 0;
3176 /* End any pending argument. */
3179 obstack_1grow (&obstack, 0);
3180 string = obstack_finish (&obstack);
3181 if (this_is_library_file)
3182 string = find_file (string);
3183 store_arg (string, delete_this_arg, this_is_output_file);
3184 if (this_is_output_file)
3185 outfiles[input_file_number] = string;
3189 obstack_1grow (&obstack, c);
3195 /* Space or tab ends an argument if one is pending. */
3198 obstack_1grow (&obstack, 0);
3199 string = obstack_finish (&obstack);
3200 if (this_is_library_file)
3201 string = find_file (string);
3202 store_arg (string, delete_this_arg, this_is_output_file);
3203 if (this_is_output_file)
3204 outfiles[input_file_number] = string;
3206 /* Reinitialize for a new argument. */
3208 delete_this_arg = 0;
3209 this_is_output_file = 0;
3210 this_is_library_file = 0;
3217 fatal ("Invalid specification! Bug in cc.");
3220 obstack_grow (&obstack, input_basename, basename_length);
3225 delete_this_arg = 2;
3228 /* Dump out the directories specified with LIBRARY_PATH,
3229 followed by the absolute directories
3230 that we search for startfiles. */
3233 struct prefix_list *pl = startfile_prefixes.plist;
3235 char *buffer = (char *) xmalloc (bufsize);
3238 for (; pl; pl = pl->next)
3240 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3241 /* Used on systems which record the specified -L dirs
3242 and use them to search for dynamic linking. */
3243 /* Relative directories always come from -B,
3244 and it is better not to use them for searching
3245 at run time. In particular, stage1 loses */
3246 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3249 /* Try subdirectory if there is one. */
3250 if (multilib_dir != NULL)
3254 if (strlen (pl->prefix) + strlen (machine_suffix)
3256 bufsize = (strlen (pl->prefix)
3257 + strlen (machine_suffix)) * 2 + 1;
3258 buffer = (char *) xrealloc (buffer, bufsize);
3259 strcpy (buffer, pl->prefix);
3260 strcat (buffer, machine_suffix);
3261 if (is_directory (buffer, 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 (buffer, 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);
3273 if (!pl->require_machine_suffix)
3275 if (is_directory (pl->prefix, multilib_dir, 1))
3277 do_spec_1 ("-L", 0, NULL_PTR);
3278 #ifdef SPACE_AFTER_L_OPTION
3279 do_spec_1 (" ", 0, NULL_PTR);
3281 do_spec_1 (pl->prefix, 1, NULL_PTR);
3282 do_spec_1 (multilib_dir, 1, NULL_PTR);
3283 /* Make this a separate argument. */
3284 do_spec_1 (" ", 0, NULL_PTR);
3290 if (is_directory (pl->prefix, machine_suffix, 1))
3292 do_spec_1 ("-L", 0, NULL_PTR);
3293 #ifdef SPACE_AFTER_L_OPTION
3294 do_spec_1 (" ", 0, NULL_PTR);
3296 do_spec_1 (pl->prefix, 1, NULL_PTR);
3297 /* Remove slash from machine_suffix. */
3298 if (strlen (machine_suffix) >= bufsize)
3299 bufsize = strlen (machine_suffix) * 2 + 1;
3300 buffer = (char *) xrealloc (buffer, bufsize);
3301 strcpy (buffer, machine_suffix);
3302 idx = strlen (buffer);
3303 if (buffer[idx - 1] == '/'
3304 || buffer[idx - 1] == DIR_SEPARATOR)
3305 buffer[idx - 1] = 0;
3306 do_spec_1 (buffer, 1, NULL_PTR);
3307 /* Make this a separate argument. */
3308 do_spec_1 (" ", 0, NULL_PTR);
3311 if (!pl->require_machine_suffix)
3313 if (is_directory (pl->prefix, "", 1))
3315 do_spec_1 ("-L", 0, NULL_PTR);
3316 #ifdef SPACE_AFTER_L_OPTION
3317 do_spec_1 (" ", 0, NULL_PTR);
3319 /* Remove slash from pl->prefix. */
3320 if (strlen (pl->prefix) >= bufsize)
3321 bufsize = strlen (pl->prefix) * 2 + 1;
3322 buffer = (char *) xrealloc (buffer, bufsize);
3323 strcpy (buffer, pl->prefix);
3324 idx = strlen (buffer);
3325 if (buffer[idx - 1] == '/'
3326 || buffer[idx - 1] == DIR_SEPARATOR)
3327 buffer[idx - 1] = 0;
3328 do_spec_1 (buffer, 1, NULL_PTR);
3329 /* Make this a separate argument. */
3330 do_spec_1 (" ", 0, NULL_PTR);
3339 /* {...:%efoo} means report an error with `foo' as error message
3340 and don't execute any more commands for this file. */
3344 while (*p != 0 && *p != '\n') p++;
3345 buf = (char *) alloca (p - q + 1);
3346 strncpy (buf, q, p - q);
3356 if (save_temps_flag)
3358 obstack_grow (&obstack, input_basename, basename_length);
3359 delete_this_arg = 0;
3363 #ifdef MKTEMP_EACH_FILE
3364 /* ??? This has a problem: the total number of
3365 values mktemp can return is limited.
3366 That matters for the names of object files.
3367 In 2.4, do something about that. */
3368 struct temp_name *t;
3370 while (*p == '.' || isalpha (*p)
3371 || (p[0] == '%' && p[1] == 'O'))
3374 /* See if we already have an association of %g/%u/%U and
3376 for (t = temp_names; t; t = t->next)
3377 if (t->length == p - suffix
3378 && strncmp (t->suffix, suffix, p - suffix) == 0
3379 && t->unique == (c != 'g'))
3382 /* Make a new association if needed. %u requires one. */
3383 if (t == 0 || c == 'u')
3387 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3388 t->next = temp_names;
3391 t->length = p - suffix;
3392 t->suffix = save_string (suffix, p - suffix);
3393 t->unique = (c != 'g');
3394 choose_temp_base ();
3395 t->filename = temp_filename;
3396 t->filename_length = temp_filename_length;
3399 obstack_grow (&obstack, t->filename, t->filename_length);
3400 delete_this_arg = 1;
3402 obstack_grow (&obstack, temp_filename, temp_filename_length);
3403 if (c == 'u' || c == 'U')
3409 sprintf (buff, "%d", unique);
3410 obstack_grow (&obstack, buff, strlen (buff));
3413 delete_this_arg = 1;
3419 obstack_grow (&obstack, input_filename, input_filename_length);
3425 struct prefix_list *pl = include_prefixes.plist;
3427 if (gcc_exec_prefix)
3429 do_spec_1 ("-iprefix", 1, NULL_PTR);
3430 /* Make this a separate argument. */
3431 do_spec_1 (" ", 0, NULL_PTR);
3432 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3433 do_spec_1 (" ", 0, NULL_PTR);
3436 for (; pl; pl = pl->next)
3438 do_spec_1 ("-isystem", 1, NULL_PTR);
3439 /* Make this a separate argument. */
3440 do_spec_1 (" ", 0, NULL_PTR);
3441 do_spec_1 (pl->prefix, 1, NULL_PTR);
3442 do_spec_1 (" ", 0, NULL_PTR);
3448 for (i = 0; i < n_infiles; i++)
3449 store_arg (outfiles[i], 0, 0);
3453 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3458 this_is_library_file = 1;
3462 this_is_output_file = 1;
3467 int index = argbuf_index;
3468 /* Handle the {...} following the %W. */
3471 p = handle_braces (p + 1);
3474 /* If any args were output, mark the last one for deletion
3476 if (argbuf_index != index)
3477 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3481 /* %x{OPTION} records OPTION for %X to output. */
3487 /* Skip past the option value and make a copy. */
3492 string = save_string (p1 + 1, p - p1 - 2);
3494 /* See if we already recorded this option. */
3495 for (i = 0; i < n_linker_options; i++)
3496 if (! strcmp (string, linker_options[i]))
3502 /* This option is new; add it. */
3504 if (!linker_options)
3506 = (char **) xmalloc (n_linker_options * sizeof (char **));
3509 = (char **) xrealloc (linker_options,
3510 n_linker_options * sizeof (char **));
3512 linker_options[n_linker_options - 1] = string;
3516 /* Dump out the options accumulated previously using %x. */
3518 for (i = 0; i < n_linker_options; i++)
3520 do_spec_1 (linker_options[i], 1, NULL_PTR);
3521 /* Make each accumulated option a separate argument. */
3522 do_spec_1 (" ", 0, NULL_PTR);
3526 /* Dump out the options accumulated previously using -Wa,. */
3528 for (i = 0; i < n_assembler_options; i++)
3530 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3531 /* Make each accumulated option a separate argument. */
3532 do_spec_1 (" ", 0, NULL_PTR);
3536 /* Dump out the options accumulated previously using -Wp,. */
3538 for (i = 0; i < n_preprocessor_options; i++)
3540 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3541 /* Make each accumulated option a separate argument. */
3542 do_spec_1 (" ", 0, NULL_PTR);
3546 /* Here are digits and numbers that just process
3547 a certain constant string as a spec. */
3550 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3556 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3562 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3568 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3574 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3580 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3586 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3592 value = do_spec_1 (link_spec, 0, NULL_PTR);
3598 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3604 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3611 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3615 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3619 if (! strncmp (y, "-D", 2))
3620 /* Copy the whole option. */
3621 while (*y && *y != ' ' && *y != '\t')
3623 else if (*y == ' ' || *y == '\t')
3624 /* Copy whitespace to the result. */
3626 /* Don't copy other options. */
3633 value = do_spec_1 (buf, 0, NULL_PTR);
3641 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3645 /* Copy all of CPP_PREDEFINES into BUF,
3646 but put __ after every -D and at the end of each arg. */
3650 if (! strncmp (y, "-D", 2))
3658 || (*(y+1) != '_' && ! isupper (*(y+1))))
3660 /* Stick __ at front of macro name. */
3663 /* Arrange to stick __ at the end as well. */
3667 /* Copy the macro name. */
3668 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3677 /* Copy the value given, if any. */
3678 while (*y && *y != ' ' && *y != '\t')
3681 else if (*y == ' ' || *y == '\t')
3682 /* Copy whitespace to the result. */
3684 /* Don't copy -A options */
3690 /* Copy all of CPP_PREDEFINES into BUF,
3691 but put __ after every -D. */
3695 if (! strncmp (y, "-D", 2))
3700 || (*(y+1) != '_' && ! isupper (*(y+1))))
3702 /* Stick -D__ at front of macro name. */
3708 /* Copy the macro name. */
3709 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3712 /* Copy the value given, if any. */
3713 while (*y && *y != ' ' && *y != '\t')
3718 /* Do not copy this macro - we have just done it before */
3719 while (*y && *y != ' ' && *y != '\t')
3723 else if (*y == ' ' || *y == '\t')
3724 /* Copy whitespace to the result. */
3726 /* Don't copy -A options */
3732 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3736 if (! strncmp (y, "-A", 2))
3737 /* Copy the whole option. */
3738 while (*y && *y != ' ' && *y != '\t')
3740 else if (*y == ' ' || *y == '\t')
3741 /* Copy whitespace to the result. */
3743 /* Don't copy other options. */
3750 value = do_spec_1 (buf, 0, NULL_PTR);
3757 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3762 /* Here we define characters other than letters and digits. */
3765 p = handle_braces (p);
3771 obstack_1grow (&obstack, '%');
3775 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3776 do_spec_1 (" ", 0, NULL_PTR);
3779 /* Process a string found as the value of a spec given by name.
3780 This feature allows individual machine descriptions
3781 to add and use their own specs.
3782 %[...] modifies -D options the way %P does;
3783 %(...) uses the spec unmodified. */
3788 struct spec_list *sl;
3791 /* The string after the S/P is the name of a spec that is to be
3793 while (*p && *p != ')' && *p != ']')
3796 /* See if it's in the list */
3797 for (len = p - name, sl = specs; sl; sl = sl->next)
3798 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3808 value = do_spec_1 (name, 0, NULL_PTR);
3814 char *x = (char *) alloca (strlen (name) * 2 + 1);
3818 /* Copy all of NAME into BUF, but put __ after
3819 every -D and at the end of each arg, */
3822 if (! strncmp (y, "-D", 2))
3830 else if (*y == ' ' || *y == 0)
3844 value = do_spec_1 (buf, 0, NULL_PTR);
3850 /* Discard the closing paren or bracket. */
3858 int c1 = *p++; /* Select first or second version number. */
3859 char *v = compiler_version;
3861 /* If desired, advance to second version number. */
3864 /* Set P after the first period. */
3865 while (*v != 0 && *v != ' ' && *v != '.')
3870 /* Set Q at the next period or at the end. */
3872 while (*q != 0 && *q != ' ' && *q != '.')
3874 /* Empty string means zero. */
3880 /* Put that part into the command. */
3881 obstack_grow (&obstack, v, q - v);
3887 if (input_from_pipe)
3888 do_spec_1 ("-", 0, NULL_PTR);
3897 /* Backslash: treat next character as ordinary. */
3902 /* Ordinary character: put it into the current argument. */
3903 obstack_1grow (&obstack, c);
3907 return 0; /* End of string */
3910 /* Return 0 if we call do_spec_1 and that returns -1. */
3923 /* A `|' after the open-brace means,
3924 if the test fails, output a single minus sign rather than nothing.
3925 This is used in %{|!pipe:...}. */
3929 /* A `!' after the open-brace negates the condition:
3930 succeed if the specified switch is not present. */
3934 /* A `.' after the open-brace means test against the current suffix. */
3944 while (*p != ':' && *p != '}') p++;
3947 register int count = 1;
3965 int found = (input_suffix != 0
3966 && strlen (input_suffix) == p - filter
3967 && strncmp (input_suffix, filter, p - filter) == 0);
3973 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3978 else if (p[-1] == '*' && p[0] == '}')
3980 /* Substitute all matching switches as separate args. */
3983 for (i = 0; i < n_switches; i++)
3984 if (!strncmp (switches[i].part1, filter, p - filter)
3985 && check_live_switch (i, p - filter))
3990 /* Test for presence of the specified switch. */
3994 /* If name specified ends in *, as in {x*:...},
3995 check for %* and handle that case. */
3996 if (p[-1] == '*' && !negate)
4001 /* First see whether we have %*. */
4005 if (*r == '%' && r[1] == '*')
4009 /* If we do, handle that case. */
4012 /* Substitute all matching switches as separate args.
4013 But do this by substituting for %*
4014 in the text that follows the colon. */
4016 unsigned hard_match_len = p - filter - 1;
4017 char *string = save_string (p + 1, q - p - 2);
4019 for (i = 0; i < n_switches; i++)
4020 if (!strncmp (switches[i].part1, filter, hard_match_len)
4021 && check_live_switch (i, -1))
4023 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4024 /* Pass any arguments this switch has. */
4032 /* If name specified ends in *, as in {x*:...},
4033 check for presence of any switch name starting with x. */
4036 for (i = 0; i < n_switches; i++)
4038 unsigned hard_match_len = p - filter - 1;
4040 if (!strncmp (switches[i].part1, filter, hard_match_len)
4041 && check_live_switch (i, hard_match_len))
4047 /* Otherwise, check for presence of exact name specified. */
4050 for (i = 0; i < n_switches; i++)
4052 if (!strncmp (switches[i].part1, filter, p - filter)
4053 && switches[i].part1[p - filter] == 0
4054 && check_live_switch (i, -1))
4062 /* If it is as desired (present for %{s...}, absent for %{-s...})
4063 then substitute either the switch or the specified
4064 conditional text. */
4065 if (present != negate)
4073 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4079 /* Here if a %{|...} conditional fails: output a minus sign,
4080 which means "standard output" or "standard input". */
4081 do_spec_1 ("-", 0, NULL_PTR);
4088 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4089 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4090 spec, or -1 if either exact match or %* is used.
4092 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4093 whose value does not begin with "no-" is obsoleted by the same value
4094 with the "no-", similarly for a switch with the "no-" prefix. */
4097 check_live_switch (switchnum, prefix_length)
4101 char *name = switches[switchnum].part1;
4104 /* In the common case of {<at-most-one-letter>*}, a negating
4105 switch would always match, so ignore that case. We will just
4106 send the conflicting switches to the compiler phase. */
4107 if (prefix_length >= 0 && prefix_length <= 1)
4110 /* If we already processed this switch and determined if it was
4111 live or not, return our past determination. */
4112 if (switches[switchnum].live_cond != 0)
4113 return switches[switchnum].live_cond > 0;
4115 /* Now search for duplicate in a manner that depends on the name. */
4119 for (i = switchnum + 1; i < n_switches; i++)
4120 if (switches[i].part1[0] == 'O')
4122 switches[switchnum].valid = 1;
4123 switches[switchnum].live_cond = -1;
4128 case 'W': case 'f': case 'm':
4129 if (! strncmp (name + 1, "no-", 3))
4131 /* We have Xno-YYY, search for XYYY. */
4132 for (i = switchnum + 1; i < n_switches; i++)
4133 if (switches[i].part1[0] == name[0]
4134 && ! strcmp (&switches[i].part1[1], &name[4]))
4136 switches[switchnum].valid = 1;
4137 switches[switchnum].live_cond = -1;
4143 /* We have XYYY, search for Xno-YYY. */
4144 for (i = switchnum + 1; i < n_switches; i++)
4145 if (switches[i].part1[0] == name[0]
4146 && switches[i].part1[1] == 'n'
4147 && switches[i].part1[2] == 'o'
4148 && switches[i].part1[3] == '-'
4149 && !strcmp (&switches[i].part1[4], &name[1]))
4151 switches[switchnum].valid = 1;
4152 switches[switchnum].live_cond = -1;
4159 /* Otherwise the switch is live. */
4160 switches[switchnum].live_cond = 1;
4164 /* Pass a switch to the current accumulating command
4165 in the same form that we received it.
4166 SWITCHNUM identifies the switch; it is an index into
4167 the vector of switches gcc received, which is `switches'.
4168 This cannot fail since it never finishes a command line.
4170 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4173 give_switch (switchnum, omit_first_word)
4175 int omit_first_word;
4177 if (!omit_first_word)
4179 do_spec_1 ("-", 0, NULL_PTR);
4180 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4182 do_spec_1 (" ", 0, NULL_PTR);
4183 if (switches[switchnum].args != 0)
4186 for (p = switches[switchnum].args; *p; p++)
4188 do_spec_1 (*p, 1, NULL_PTR);
4189 do_spec_1 (" ", 0, NULL_PTR);
4192 switches[switchnum].valid = 1;
4195 /* Search for a file named NAME trying various prefixes including the
4196 user's -B prefix and some standard ones.
4197 Return the absolute file name found. If nothing is found, return NAME. */
4205 /* Try multilib_dir if it is defined. */
4206 if (multilib_dir != NULL)
4210 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4211 strcpy (try, multilib_dir);
4212 strcat (try, dir_separator_str);
4215 newname = find_a_file (&startfile_prefixes, try, R_OK);
4217 /* If we don't find it in the multi library dir, then fall
4218 through and look for it in the normal places. */
4219 if (newname != NULL)
4223 newname = find_a_file (&startfile_prefixes, name, R_OK);
4224 return newname ? newname : name;
4227 /* Determine whether a directory exists. If LINKER, return 0 for
4228 certain fixed names not needed by the linker. If not LINKER, it is
4229 only important to return 0 if the host machine has a small ARG_MAX
4233 is_directory (path1, path2, linker)
4238 int len1 = strlen (path1);
4239 int len2 = strlen (path2);
4240 char *path = (char *) alloca (3 + len1 + len2);
4244 #ifndef SMALL_ARG_MAX
4249 /* Construct the path from the two parts. Ensure the string ends with "/.".
4250 The resulting path will be a directory even if the given path is a
4252 bcopy (path1, path, len1);
4253 bcopy (path2, path + len1, len2);
4254 cp = path + len1 + len2;
4255 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4256 *cp++ = DIR_SEPARATOR;
4260 /* Exclude directories that the linker is known to search. */
4263 && strcmp (path, concat4 (dir_separator_str, "lib",
4264 dir_separator_str, ".")) == 0)
4266 && strcmp (path, concat6 (dir_separator_str, "usr",
4267 dir_separator_str, "lib",
4268 dir_separator_str, ".")) == 0)))
4271 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4274 /* On fatal signals, delete all the temporary files. */
4277 fatal_error (signum)
4280 signal (signum, SIG_DFL);
4281 delete_failure_queue ();
4282 delete_temp_files ();
4283 /* Get the same signal again, this time not handled,
4284 so its normal effect occurs. */
4285 kill (getpid (), signum);
4296 int linker_was_run = 0;
4297 char *explicit_link_files;
4301 p = argv[0] + strlen (argv[0]);
4302 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4305 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4306 signal (SIGINT, fatal_error);
4308 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4309 signal (SIGHUP, fatal_error);
4311 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4312 signal (SIGTERM, fatal_error);
4314 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4315 signal (SIGPIPE, fatal_error);
4319 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4321 obstack_init (&obstack);
4323 /* Set up to remember the pathname of gcc and any options
4324 needed for collect. We use argv[0] instead of programname because
4325 we need the complete pathname. */
4326 obstack_init (&collect_obstack);
4327 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4328 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4329 putenv (obstack_finish (&collect_obstack));
4331 #ifdef INIT_ENVIRONMENT
4332 /* Set up any other necessary machine specific environment variables. */
4333 putenv (INIT_ENVIRONMENT);
4336 /* Choose directory for temp files. */
4338 choose_temp_base ();
4340 /* Make a table of what switches there are (switches, n_switches).
4341 Make a table of specified input files (infiles, n_infiles).
4342 Decode switches that are handled locally. */
4344 process_command (argc, argv);
4346 /* Initialize the vector of specs to just the default.
4347 This means one element containing 0s, as a terminator. */
4349 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4350 bcopy ((char *) default_compilers, (char *) compilers,
4351 sizeof default_compilers);
4352 n_compilers = n_default_compilers;
4354 /* Read specs from a file if there is one. */
4356 #ifndef FREEBSD_NATIVE
4357 machine_suffix = concat4 (spec_machine, dir_separator_str,
4358 spec_version, dir_separator_str);
4359 just_machine_suffix = concat (spec_machine, dir_separator_str);
4362 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4363 /* Read the specs file unless it is a default one. */
4364 if (specs_file != 0 && strcmp (specs_file, "specs"))
4365 read_specs (specs_file);
4367 /* If not cross-compiling, look for startfiles in the standard places. */
4368 /* The fact that these are done here, after reading the specs file,
4369 means that it cannot be found in these directories.
4370 But that's okay. It should never be there anyway. */
4373 #ifdef MD_EXEC_PREFIX
4374 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4375 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4378 #ifdef MD_STARTFILE_PREFIX
4379 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4382 #ifdef MD_STARTFILE_PREFIX_1
4383 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4386 /* If standard_startfile_prefix is relative, base it on
4387 standard_exec_prefix. This lets us move the installed tree
4388 as a unit. If GCC_EXEC_PREFIX is defined, base
4389 standard_startfile_prefix on that as well. */
4390 if (*standard_startfile_prefix == '/'
4391 || *standard_startfile_prefix == DIR_SEPARATOR)
4392 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4396 if (gcc_exec_prefix)
4397 add_prefix (&startfile_prefixes,
4398 concat3 (gcc_exec_prefix, machine_suffix,
4399 standard_startfile_prefix),
4401 add_prefix (&startfile_prefixes,
4402 concat3 (standard_exec_prefix,
4404 standard_startfile_prefix),
4408 #ifndef FREEBSD_NATIVE
4409 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4411 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4413 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4414 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4416 #endif /* FREEBSD_NATIVE */
4421 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4422 add_prefix (&startfile_prefixes,
4423 concat3 (gcc_exec_prefix, machine_suffix,
4424 standard_startfile_prefix),
4428 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4429 if (gcc_exec_prefix)
4431 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4432 + strlen (spec_version)
4433 + strlen (spec_machine) + 3);
4434 strcpy (temp, gcc_exec_prefix);
4435 strcat (temp, spec_machine);
4436 strcat (temp, dir_separator_str);
4437 strcat (temp, spec_version);
4438 strcat (temp, dir_separator_str);
4439 gcc_exec_prefix = temp;
4442 /* Now we have the specs.
4443 Set the `valid' bits for switches that match anything in any spec. */
4445 validate_all_switches ();
4447 /* Now that we have the switches and the specs, set
4448 the subdirectory based on the options. */
4449 set_multilib_dir ();
4451 /* Warn about any switches that no pass was interested in. */
4453 for (i = 0; i < n_switches; i++)
4454 if (! switches[i].valid)
4455 error ("unrecognized option `-%s'", switches[i].part1);
4457 /* Obey some of the options. */
4459 if (print_search_dirs)
4461 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4462 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4463 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4467 if (print_file_name)
4469 printf ("%s\n", find_file (print_file_name));
4473 if (print_prog_name)
4475 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4476 printf ("%s\n", (newname ? newname : print_prog_name));
4480 if (print_multi_lib)
4482 print_multilib_info ();
4486 if (print_multi_directory)
4488 if (multilib_dir == NULL)
4491 printf ("%s\n", multilib_dir);
4497 if (! strcmp (version_string, compiler_version))
4498 fprintf (stderr, "gcc version %s\n", version_string);
4500 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4501 version_string, compiler_version);
4508 fatal ("No input files specified");
4510 /* Make a place to record the compiler output file names
4511 that correspond to the input files. */
4513 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4514 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4516 /* Record which files were specified explicitly as link input. */
4518 explicit_link_files = xmalloc (n_infiles);
4519 bzero (explicit_link_files, n_infiles);
4521 for (i = 0; i < n_infiles; i++)
4523 register struct compiler *cp = 0;
4524 int this_file_error = 0;
4526 /* Tell do_spec what to substitute for %i. */
4528 input_filename = infiles[i].name;
4529 input_filename_length = strlen (input_filename);
4530 input_file_number = i;
4532 /* Use the same thing in %o, unless cp->spec says otherwise. */
4534 outfiles[i] = input_filename;
4536 /* Figure out which compiler from the file's suffix. */
4538 cp = lookup_compiler (infiles[i].name, input_filename_length,
4539 infiles[i].language);
4543 /* Ok, we found an applicable compiler. Run its spec. */
4544 /* First say how much of input_filename to substitute for %b */
4548 input_basename = input_filename;
4549 for (p = input_filename; *p; p++)
4550 if (*p == '/' || *p == DIR_SEPARATOR)
4551 input_basename = p + 1;
4553 /* Find a suffix starting with the last period,
4554 and set basename_length to exclude that suffix. */
4555 basename_length = strlen (input_basename);
4556 p = input_basename + basename_length;
4557 while (p != input_basename && *p != '.') --p;
4558 if (*p == '.' && p != input_basename)
4560 basename_length = p - input_basename;
4561 input_suffix = p + 1;
4567 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4569 len += strlen (cp->spec[j]);
4571 p = (char *) xmalloc (len + 1);
4574 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4577 strcpy (p + len, cp->spec[j]);
4578 len += strlen (cp->spec[j]);
4581 value = do_spec (p);
4584 this_file_error = 1;
4587 /* If this file's name does not contain a recognized suffix,
4588 record it as explicit linker input. */
4591 explicit_link_files[i] = 1;
4593 /* Clear the delete-on-failure queue, deleting the files in it
4594 if this compilation failed. */
4596 if (this_file_error)
4598 delete_failure_queue ();
4601 /* If this compilation succeeded, don't delete those files later. */
4602 clear_failure_queue ();
4605 /* Run ld to link all the compiler output files. */
4607 if (error_count == 0)
4609 int tmp = execution_count;
4613 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4615 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4616 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4618 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4620 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4621 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4624 for (i = 0; i < n_switches; i++)
4628 obstack_grow (&collect_obstack, " ", 1);
4631 obstack_grow (&collect_obstack, "-", 1);
4632 obstack_grow (&collect_obstack, switches[i].part1,
4633 strlen (switches[i].part1));
4635 for (args = switches[i].args; args && *args; args++)
4637 obstack_grow (&collect_obstack, " ", 1);
4638 obstack_grow (&collect_obstack, *args, strlen (*args));
4641 obstack_grow (&collect_obstack, "\0", 1);
4642 putenv (obstack_finish (&collect_obstack));
4644 value = do_spec (link_command_spec);
4647 linker_was_run = (tmp != execution_count);
4650 /* Warn if a -B option was specified but the prefix was never used. */
4651 unused_prefix_warnings (&exec_prefixes);
4652 unused_prefix_warnings (&startfile_prefixes);
4654 /* If options said don't run linker,
4655 complain about input files to be given to the linker. */
4657 if (! linker_was_run && error_count == 0)
4658 for (i = 0; i < n_infiles; i++)
4659 if (explicit_link_files[i])
4660 error ("%s: linker input file unused since linking not done",
4663 /* Delete some or all of the temporary files we made. */
4666 delete_failure_queue ();
4667 delete_temp_files ();
4669 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4674 /* Find the proper compilation spec for the file name NAME,
4675 whose length is LENGTH. LANGUAGE is the specified language,
4676 or 0 if none specified. */
4678 static struct compiler *
4679 lookup_compiler (name, length, language)
4684 struct compiler *cp;
4686 /* Look for the language, if one is spec'd. */
4689 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4693 if (cp->suffix[0] == '@'
4694 && !strcmp (cp->suffix + 1, language))
4698 error ("language %s not recognized", language);
4701 /* Look for a suffix. */
4702 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4704 if (/* The suffix `-' matches only the file name `-'. */
4705 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4707 (strlen (cp->suffix) < length
4708 /* See if the suffix matches the end of NAME. */
4710 && (!strcmp (cp->suffix,
4711 name + length - strlen (cp->suffix))
4712 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4713 && !strcasecmp (cp->suffix,
4714 name + length - strlen (cp->suffix)))))
4716 && !strcmp (cp->suffix,
4717 name + length - strlen (cp->suffix))))
4720 if (cp->spec[0][0] == '@')
4722 struct compiler *new;
4723 /* An alias entry maps a suffix to a language.
4724 Search for the language; pass 0 for NAME and LENGTH
4725 to avoid infinite recursion if language not found.
4726 Construct the new compiler spec. */
4727 language = cp->spec[0] + 1;
4728 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4729 new->suffix = cp->suffix;
4730 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4731 (char *) new->spec, sizeof new->spec);
4734 /* A non-alias entry: return it. */
4746 register char *value = (char *) malloc (size);
4748 fatal ("virtual memory exhausted");
4753 xrealloc (ptr, size)
4757 register char *value = (char *) realloc (ptr, size);
4759 fatal ("virtual memory exhausted");
4763 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4769 int len1 = strlen (s1);
4770 int len2 = strlen (s2);
4771 char *result = xmalloc (len1 + len2 + 1);
4773 strcpy (result, s1);
4774 strcpy (result + len1, s2);
4775 *(result + len1 + len2) = 0;
4781 concat3 (s1, s2, s3)
4784 return concat (concat (s1, s2), s3);
4788 concat4 (s1, s2, s3, s4)
4789 char *s1, *s2, *s3, *s4;
4791 return concat (concat (s1, s2), concat (s3, s4));
4795 concat6 (s1, s2, s3, s4, s5, s6)
4796 char *s1, *s2, *s3, *s4, *s5, *s6;
4798 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4802 save_string (s, len)
4806 register char *result = xmalloc (len + 1);
4808 bcopy (s, result, len);
4814 pfatal_with_name (name)
4819 if (errno < sys_nerr)
4820 s = concat ("%s: ", my_strerror( errno ));
4822 s = "cannot open `%s'";
4827 perror_with_name (name)
4832 if (errno < sys_nerr)
4833 s = concat ("%s: ", my_strerror( errno ));
4835 s = "cannot open `%s'";
4845 if (errno < sys_nerr)
4846 s = concat ("installation problem, cannot exec `%s': ",
4847 my_strerror (errno));
4849 s = "installation problem, cannot exec `%s'";
4853 /* More 'friendly' abort that prints the line and file.
4854 config.h can #define abort fancy_abort if you like that sort of thing. */
4859 fatal ("Internal gcc abort.");
4864 /* Output an error message and exit */
4867 fatal VPROTO((char *format, ...))
4874 VA_START (ap, format);
4877 format = va_arg (ap, char*);
4880 fprintf (stderr, "%s: ", programname);
4881 vfprintf (stderr, format, ap);
4883 fprintf (stderr, "\n");
4884 delete_temp_files ();
4889 error VPROTO((char *format, ...))
4896 VA_START (ap, format);
4899 format = va_arg (ap, char*);
4902 fprintf (stderr, "%s: ", programname);
4903 vfprintf (stderr, format, ap);
4906 fprintf (stderr, "\n");
4909 #else /* not HAVE_VPRINTF */
4912 fatal (msg, arg1, arg2)
4913 char *msg, *arg1, *arg2;
4915 error (msg, arg1, arg2);
4916 delete_temp_files ();
4921 error (msg, arg1, arg2)
4922 char *msg, *arg1, *arg2;
4924 fprintf (stderr, "%s: ", programname);
4925 fprintf (stderr, msg, arg1, arg2);
4926 fprintf (stderr, "\n");
4929 #endif /* not HAVE_VPRINTF */
4933 validate_all_switches ()
4935 struct compiler *comp;
4938 struct spec_list *spec;
4940 for (comp = compilers; comp->spec[0]; comp++)
4943 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4947 if (c == '%' && *p == '{')
4948 /* We have a switch spec. */
4949 validate_switches (p + 1);
4953 /* look through the linked list of extra specs read from the specs file */
4954 for (spec = specs; spec ; spec = spec->next)
4958 if (c == '%' && *p == '{')
4959 /* We have a switch spec. */
4960 validate_switches (p + 1);
4963 p = link_command_spec;
4965 if (c == '%' && *p == '{')
4966 /* We have a switch spec. */
4967 validate_switches (p + 1);
4969 /* Now notice switches mentioned in the machine-specific specs. */
4973 if (c == '%' && *p == '{')
4974 /* We have a switch spec. */
4975 validate_switches (p + 1);
4979 if (c == '%' && *p == '{')
4980 /* We have a switch spec. */
4981 validate_switches (p + 1);
4985 if (c == '%' && *p == '{')
4986 /* We have a switch spec. */
4987 validate_switches (p + 1);
4989 p = signed_char_spec;
4991 if (c == '%' && *p == '{')
4992 /* We have a switch spec. */
4993 validate_switches (p + 1);
4997 if (c == '%' && *p == '{')
4998 /* We have a switch spec. */
4999 validate_switches (p + 1);
5003 if (c == '%' && *p == '{')
5004 /* We have a switch spec. */
5005 validate_switches (p + 1);
5009 if (c == '%' && *p == '{')
5010 /* We have a switch spec. */
5011 validate_switches (p + 1);
5015 if (c == '%' && *p == '{')
5016 /* We have a switch spec. */
5017 validate_switches (p + 1);
5021 if (c == '%' && *p == '{')
5022 /* We have a switch spec. */
5023 validate_switches (p + 1);
5027 if (c == '%' && *p == '{')
5028 /* We have a switch spec. */
5029 validate_switches (p + 1);
5032 /* Look at the switch-name that comes after START
5033 and mark as valid all supplied switches that match it. */
5036 validate_switches (start)
5039 register char *p = start;
5054 while (*p != ':' && *p != '}') p++;
5058 else if (p[-1] == '*')
5060 /* Mark all matching switches as valid. */
5062 for (i = 0; i < n_switches; i++)
5063 if (!strncmp (switches[i].part1, filter, p - filter))
5064 switches[i].valid = 1;
5068 /* Mark an exact matching switch as valid. */
5069 for (i = 0; i < n_switches; i++)
5071 if (!strncmp (switches[i].part1, filter, p - filter)
5072 && switches[i].part1[p - filter] == 0)
5073 switches[i].valid = 1;
5078 /* Check whether a particular argument was used. */
5087 for (i = 0; i < n_switches; i++)
5088 if (! strncmp (switches[i].part1, p, len)
5089 && strlen (switches[i].part1) == len)
5094 /* Check whether a particular argument is a default argument. */
5096 #ifndef MULTILIB_DEFAULTS
5097 #define MULTILIB_DEFAULTS { NULL }
5100 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
5103 default_arg (p, len)
5107 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
5110 for (i = 0; i < count; i++)
5111 if (multilib_defaults[i] != NULL
5112 && strncmp (multilib_defaults[i], p, len) == 0
5113 && multilib_defaults[i][len] == '\0')
5119 /* Work out the subdirectory to use based on the
5120 options. The format of multilib_select is a list of elements.
5121 Each element is a subdirectory name followed by a list of options
5122 followed by a semicolon. gcc will consider each line in turn. If
5123 none of the options beginning with an exclamation point are
5124 present, and all of the other options are present, that
5125 subdirectory will be used. */
5130 char *p = multilib_select;
5132 char *this_path, *this_arg;
5138 /* Ignore newlines. */
5145 /* Get the initial path. */
5153 this_path_len = p - this_path;
5155 /* Check the arguments. */
5170 while (*p != ' ' && *p != ';')
5177 if (*this_arg != '!')
5185 /* If this is a default argument, we can just ignore it.
5186 This is true even if this_arg begins with '!'. Beginning
5187 with '!' does not mean that this argument is necessarily
5188 inappropriate for this library: it merely means that
5189 there is a more specific library which uses this
5190 argument. If this argument is a default, we need not
5191 consider that more specific library. */
5192 if (! default_arg (this_arg, p - this_arg))
5194 ok = used_arg (this_arg, p - this_arg);
5205 if (this_path_len != 1
5206 || this_path[0] != '.')
5208 multilib_dir = xmalloc (this_path_len + 1);
5209 strncpy (multilib_dir, this_path, this_path_len);
5210 multilib_dir[this_path_len] = '\0';
5219 /* Print out the multiple library subdirectory selection
5220 information. This prints out a series of lines. Each line looks
5221 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5222 required. Only the desired options are printed out, the negative
5223 matches. The options are print without a leading dash. There are
5224 no spaces to make it easy to use the information in the shell.
5225 Each subdirectory is printed only once. This assumes the ordering
5226 generated by the genmultilib script. */
5229 print_multilib_info ()
5231 char *p = multilib_select;
5232 char *last_path = 0, *this_path;
5234 int last_path_len = 0;
5238 /* Ignore newlines. */
5245 /* Get the initial path. */
5254 /* If this is a duplicate, skip it. */
5255 skip = (last_path != 0 && p - this_path == last_path_len
5256 && ! strncmp (last_path, this_path, last_path_len));
5258 last_path = this_path;
5259 last_path_len = p - this_path;
5261 /* If this directory requires any default arguments, we can skip
5262 it. We will already have printed a directory identical to
5263 this one which does not require that default argument. */
5281 while (*q != ' ' && *q != ';')
5289 && default_arg (arg, q - arg))
5304 for (p1 = last_path; p1 < p; p1++)
5323 use_arg = *p != '!';
5328 while (*p != ' ' && *p != ';')