1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 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>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
57 /* Include multi-lib information. */
67 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
70 #define WTERMSIG(S) ((S) & 0x7f)
73 #define WIFEXITED(S) (((S) & 0xff) == 0)
76 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
79 /* Add prototype support. */
81 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
82 #define PROTO(ARGS) ARGS
84 #define PROTO(ARGS) ()
90 #define PVPROTO(ARGS) ARGS
91 #define VPROTO(ARGS) ARGS
92 #define VA_START(va_list,var) va_start(va_list,var)
94 #define PVPROTO(ARGS) ()
95 #define VPROTO(ARGS) (va_alist) va_dcl
96 #define VA_START(va_list,var) va_start(va_list)
100 /* Define a generic NULL if one hasn't already been defined. */
106 /* Define O_RDONLY if the system hasn't defined it for us. */
112 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
113 #define GENERIC_PTR void *
115 #define GENERIC_PTR char *
120 #define NULL_PTR ((GENERIC_PTR)0)
127 /* On MSDOS, write temp files in current dir
128 because there's no place else we can expect to use. */
135 /* Test if something is a normal file. */
137 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
140 /* Test if something is a directory. */
142 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
145 /* By default there is no special suffix for executables. */
146 #ifndef EXECUTABLE_SUFFIX
147 #define EXECUTABLE_SUFFIX ""
150 /* By default, the suffix for object files is ".o". */
152 #define HAVE_OBJECT_SUFFIX
154 #define OBJECT_SUFFIX ".o"
157 /* By default, colon separates directories in a path. */
158 #ifndef PATH_SEPARATOR
159 #define PATH_SEPARATOR ':'
162 #ifndef DIR_SEPARATOR
163 #define DIR_SEPARATOR '/'
166 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
168 #define obstack_chunk_alloc xmalloc
169 #define obstack_chunk_free free
172 extern char *getenv ();
178 #ifndef HAVE_STRERROR
181 extern const char *const sys_errlist[];
183 extern char *sys_errlist[];
186 extern char *strerror();
189 extern int execv (), execvp ();
191 /* If a stage of compilation returns an exit status >= 1,
192 compilation of that file ceases. */
194 #define MIN_FATAL_STATUS 1
196 /* Flag saying to print the directories gcc will search through looking for
197 programs, libraries, etc. */
199 static int print_search_dirs;
201 /* Flag saying to print the full filename of this file
202 as found through our usual search mechanism. */
204 static char *print_file_name = NULL;
206 /* As print_file_name, but search for executable file. */
208 static char *print_prog_name = NULL;
210 /* Flag saying to print the relative path we'd use to
211 find libgcc.a given the current compiler flags. */
213 static int print_multi_directory;
215 /* Flag saying to print the list of subdirectories and
216 compiler flags used to select them in a standard form. */
218 static int print_multi_lib;
220 /* Flag indicating whether we should print the command and arguments */
222 static int verbose_flag;
224 /* Nonzero means write "temp" files in source directory
225 and use the source file's name in them, and don't delete them. */
227 static int save_temps_flag;
229 /* The compiler version. */
231 static char *compiler_version;
233 /* The target version specified with -V */
235 static char *spec_version = DEFAULT_TARGET_VERSION;
237 /* The target machine specified with -b. */
239 static char *spec_machine = DEFAULT_TARGET_MACHINE;
241 /* Nonzero if cross-compiling.
242 When -b is used, the value comes from the `specs' file. */
245 static int cross_compile = 1;
247 static int cross_compile = 0;
250 /* The number of errors that have occurred; the link phase will not be
251 run if this is non-zero. */
252 static int error_count = 0;
254 /* This is the obstack which we use to allocate many strings. */
256 static struct obstack obstack;
258 /* This is the obstack to build an environment variable to pass to
259 collect2 that describes all of the relevant switches of what to
260 pass the compiler in building the list of pointers to constructors
263 static struct obstack collect_obstack;
265 extern char *version_string;
267 /* Forward declaration for prototypes. */
270 static void set_spec PROTO((char *, char *));
271 static struct compiler *lookup_compiler PROTO((char *, int, char *));
272 static char *build_search_list PROTO((struct path_prefix *, char *, int));
273 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
274 static char *find_a_file PROTO((struct path_prefix *, char *, int));
275 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
276 static char *skip_whitespace PROTO((char *));
277 static void record_temp_file PROTO((char *, int, int));
278 static void delete_if_ordinary PROTO((char *));
279 static void delete_temp_files PROTO((void));
280 static void delete_failure_queue PROTO((void));
281 static void clear_failure_queue PROTO((void));
282 static char *choose_temp_base_try PROTO((char *, char *));
283 static void choose_temp_base PROTO((void));
284 static int check_live_switch PROTO((int, int));
285 static char *handle_braces PROTO((char *));
286 static char *save_string PROTO((char *, int));
287 static char *concat PROTO((char *, char *));
288 static char *concat3 PROTO((char *, char *, char *));
289 static char *concat4 PROTO((char *, char *, char *, char *));
290 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
292 static int do_spec PROTO((char *));
293 static int do_spec_1 PROTO((char *, int, char *));
294 static char *find_file PROTO((char *));
295 static int is_directory PROTO((char *, char *, int));
296 static void validate_switches PROTO((char *));
297 static void validate_all_switches PROTO((void));
298 static void give_switch PROTO((int, int));
299 static int used_arg PROTO((char *, int));
300 static int default_arg PROTO((char *, int));
301 static void set_multilib_dir PROTO((void));
302 static void print_multilib_info PROTO((void));
303 static void pfatal_with_name PROTO((char *));
304 static void perror_with_name PROTO((char *));
305 static void perror_exec PROTO((char *));
307 static void fatal PVPROTO((char *, ...));
308 static void error PVPROTO((char *, ...));
310 /* We must not provide any prototype here, even if ANSI C. */
311 static void fatal PROTO(());
312 static void error PROTO(());
319 /* Specs are strings containing lines, each of which (if not blank)
320 is made up of a program name, and arguments separated by spaces.
321 The program name must be exact and start from root, since no path
322 is searched and it is unreliable to depend on the current working directory.
323 Redirection of input or output is not supported; the subprograms must
324 accept filenames saying what files to read and write.
326 In addition, the specs can contain %-sequences to substitute variable text
327 or for conditional text. Here is a table of all defined %-sequences.
328 Note that spaces are not generated automatically around the results of
329 expanding these sequences; therefore, you can concatenate them together
330 or with constant text in a single argument.
332 %% substitute one % into the program name or argument.
333 %i substitute the name of the input file being processed.
334 %b substitute the basename of the input file being processed.
335 This is the substring up to (and not including) the last period
336 and not including the directory.
337 %g substitute the temporary-file-name-base. This is a string chosen
338 once per compilation. Different temporary file names are made by
339 concatenation of constant strings on the end, as in `%g.s'.
340 %g also has the same effect of %d.
341 %u like %g, but make the temporary file name unique.
342 %U returns the last file name generated with %u.
343 %d marks the argument containing or following the %d as a
344 temporary file name, so that that file will be deleted if CC exits
345 successfully. Unlike %g, this contributes no text to the argument.
346 %w marks the argument containing or following the %w as the
347 "output file" of this compilation. This puts the argument
348 into the sequence of arguments that %o will substitute later.
350 like %{...} but mark last argument supplied within
351 as a file to be deleted on failure.
352 %o substitutes the names of all the output files, with spaces
353 automatically placed around them. You should write spaces
354 around the %o as well or the results are undefined.
355 %o is for use in the specs for running the linker.
356 Input files whose names have no recognized suffix are not compiled
357 at all, but they are included among the output files, so they will
359 %O substitutes the suffix for object files.
360 %p substitutes the standard macro predefinitions for the
361 current target machine. Use this when running cpp.
362 %P like %p, but puts `__' before and after the name of each macro.
363 (Except macros that already have __.)
365 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
366 %s current argument is the name of a library or startup file of some sort.
367 Search for that file in a standard list of directories
368 and substitute the full name found.
369 %eSTR Print STR as an error message. STR is terminated by a newline.
370 Use this when inconsistent options are detected.
371 %x{OPTION} Accumulate an option for %X.
372 %X Output the accumulated linker options specified by compilations.
373 %Y Output the accumulated assembler options specified by compilations.
374 %Z Output the accumulated preprocessor options specified by compilations.
375 %v1 Substitute the major version number of GCC.
376 (For version 2.5.n, this is 2.)
377 %v2 Substitute the minor version number of GCC.
378 (For version 2.5.n, this is 5.)
379 %a process ASM_SPEC as a spec.
380 This allows config.h to specify part of the spec for running as.
381 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
382 used here. This can be used to run a post-processor after the
383 assembler has done it's job.
384 %D Dump out a -L option for each directory in startfile_prefixes.
385 If multilib_dir is set, extra entries are generated with it affixed.
386 %l process LINK_SPEC as a spec.
387 %L process LIB_SPEC as a spec.
388 %G process LIBGCC_SPEC as a spec.
389 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
390 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
391 %c process SIGNED_CHAR_SPEC as a spec.
392 %C process CPP_SPEC as a spec. A capital C is actually used here.
393 %1 process CC1_SPEC as a spec.
394 %2 process CC1PLUS_SPEC as a spec.
395 %| output "-" if the input for the current command is coming from a pipe.
396 %* substitute the variable part of a matched option. (See below.)
397 Note that each comma in the substituted string is replaced by
399 %{S} substitutes the -S switch, if that switch was given to CC.
400 If that switch was not specified, this substitutes nothing.
401 Here S is a metasyntactic variable.
402 %{S*} substitutes all the switches specified to CC whose names start
403 with -S. This is used for -o, -D, -I, etc; switches that take
404 arguments. CC considers `-o foo' as being one switch whose
405 name starts with `o'. %{o*} would substitute this text,
406 including the space; thus, two arguments would be generated.
407 %{S*:X} substitutes X if one or more switches whose names start with -S are
408 specified to CC. Note that the tail part of the -S option
409 (i.e. the part matched by the `*') will be substituted for each
410 occurrence of %* within X.
411 %{S:X} substitutes X, but only if the -S switch was given to CC.
412 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
413 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
414 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
415 %{.S:X} substitutes X, but only if processing a file with suffix S.
416 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
417 %(Spec) processes a specification defined in a specs file as *Spec:
418 %[Spec] as above, but put __ around -D arguments
420 The conditional text X in a %{S:X} or %{!S:X} construct may contain
421 other nested % constructs or spaces, or even newlines. They are
422 processed as usual, as described above.
424 The -O, -f, -m, and -W switches are handled specifically in these
425 constructs. If another value of -O or the negated form of a -f, -m, or
426 -W switch is found later in the command line, the earlier switch
427 value is ignored, except with {S*} where S is just one letter; this
428 passes all matching options.
430 The character | is used to indicate that a command should be piped to
431 the following command, but only if -pipe is specified.
433 Note that it is built into CC which switches take arguments and which
434 do not. You might think it would be useful to generalize this to
435 allow each compiler's spec to say which switches take arguments. But
436 this cannot be done in a consistent fashion. CC cannot even decide
437 which input files have been specified without knowing which switches
438 take arguments, and it must know which input files to compile in order
439 to tell which compilers to run.
441 CC also knows implicitly that arguments starting in `-l' are to be
442 treated as compiler output files, and passed to the linker in their
443 proper position among the other output files. */
445 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
447 /* config.h can define ASM_SPEC to provide extra args to the assembler
448 or extra switch-translations. */
453 /* config.h can define ASM_FINAL_SPEC to run a post processor after
454 the assembler has run. */
455 #ifndef ASM_FINAL_SPEC
456 #define ASM_FINAL_SPEC ""
459 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
460 or extra switch-translations. */
465 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
466 or extra switch-translations. */
471 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
472 or extra switch-translations. */
474 #define CC1PLUS_SPEC ""
477 /* config.h can define LINK_SPEC to provide extra args to the linker
478 or extra switch-translations. */
483 /* config.h can define LIB_SPEC to override the default libraries. */
485 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
488 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
491 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
492 /* Have gcc do the search for libgcc.a. */
493 #define LIBGCC_SPEC "libgcc.a%s"
495 #define LIBGCC_SPEC "-lgcc"
499 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
500 #ifndef STARTFILE_SPEC
501 #define STARTFILE_SPEC \
502 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
505 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
506 Make the string nonempty to require spaces there. */
507 #ifndef SWITCHES_NEED_SPACES
508 #define SWITCHES_NEED_SPACES ""
511 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
513 #define ENDFILE_SPEC ""
516 /* This spec is used for telling cpp whether char is signed or not. */
517 #ifndef SIGNED_CHAR_SPEC
518 /* Use #if rather than ?:
519 because MIPS C compiler rejects like ?: in initializers. */
520 #if DEFAULT_SIGNED_CHAR
521 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
523 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
527 /* MULTILIB_SELECT comes from multilib.h. It gives a
528 string interpreted by set_multilib_dir to select a library
529 subdirectory based on the compiler options. */
530 #ifndef MULTILIB_SELECT
531 #define MULTILIB_SELECT ". ;"
534 static char *cpp_spec = CPP_SPEC;
535 static char *cpp_predefines = CPP_PREDEFINES;
536 static char *cc1_spec = CC1_SPEC;
537 static char *cc1plus_spec = CC1PLUS_SPEC;
538 static char *signed_char_spec = SIGNED_CHAR_SPEC;
539 static char *asm_spec = ASM_SPEC;
540 static char *asm_final_spec = ASM_FINAL_SPEC;
541 static char *link_spec = LINK_SPEC;
542 static char *lib_spec = LIB_SPEC;
543 static char *libgcc_spec = LIBGCC_SPEC;
544 static char *endfile_spec = ENDFILE_SPEC;
545 static char *startfile_spec = STARTFILE_SPEC;
546 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
547 static char *multilib_select = MULTILIB_SELECT;
550 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
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];
1030 return "cannot access";
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;
1265 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1267 if (! strcmp (name, extra_specs[i].name))
1269 extra_specs[i].spec = sl->spec;
1276 /* Free the old spec */
1281 /* Accumulate a command (program name and args), and run it. */
1283 /* Vector of pointers to arguments in the current line of specifications. */
1285 static char **argbuf;
1287 /* Number of elements allocated in argbuf. */
1289 static int argbuf_length;
1291 /* Number of elements in argbuf currently in use (containing args). */
1293 static int argbuf_index;
1295 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1296 temp file. Used only if MKTEMP_EACH_FILE. */
1298 static struct temp_name {
1299 char *suffix; /* suffix associated with the code. */
1300 int length; /* strlen (suffix). */
1301 int unique; /* Indicates whether %g or %u/%U was used. */
1302 char *filename; /* associated filename. */
1303 int filename_length; /* strlen (filename). */
1304 struct temp_name *next;
1307 /* Number of commands executed so far. */
1309 static int execution_count;
1311 /* Number of commands that exited with a signal. */
1313 static int signal_count;
1315 /* Name with which this program was invoked. */
1317 static char *programname;
1319 /* Structures to keep track of prefixes to try when looking for files. */
1323 char *prefix; /* String to prepend to the path. */
1324 struct prefix_list *next; /* Next in linked list. */
1325 int require_machine_suffix; /* Don't use without machine_suffix. */
1326 /* 2 means try both machine_suffix and just_machine_suffix. */
1327 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1332 struct prefix_list *plist; /* List of prefixes to try */
1333 int max_len; /* Max length of a prefix in PLIST */
1334 char *name; /* Name of this list (used in config stuff) */
1337 /* List of prefixes to try when looking for executables. */
1339 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1341 /* List of prefixes to try when looking for startup (crt0) files. */
1343 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1345 /* List of prefixes to try when looking for include files. */
1347 static struct path_prefix include_prefixes = { 0, 0, "include" };
1349 /* Suffix to attach to directories searched for commands.
1350 This looks like `MACHINE/VERSION/'. */
1352 static char *machine_suffix = 0;
1354 /* Suffix to attach to directories searched for commands.
1355 This is just `MACHINE/'. */
1357 static char *just_machine_suffix = 0;
1359 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1361 static char *gcc_exec_prefix;
1363 /* Default prefixes to attach to command names. */
1365 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1366 #undef MD_EXEC_PREFIX
1367 #undef MD_STARTFILE_PREFIX
1368 #undef MD_STARTFILE_PREFIX_1
1371 #ifndef STANDARD_EXEC_PREFIX
1372 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1373 #endif /* !defined STANDARD_EXEC_PREFIX */
1375 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1376 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1377 #ifdef MD_EXEC_PREFIX
1378 static char *md_exec_prefix = MD_EXEC_PREFIX;
1381 #ifndef STANDARD_STARTFILE_PREFIX
1382 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1383 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1385 #ifdef MD_STARTFILE_PREFIX
1386 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1388 #ifdef MD_STARTFILE_PREFIX_1
1389 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1391 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1392 static char *standard_startfile_prefix_1 = "/lib/";
1393 static char *standard_startfile_prefix_2 = "/usr/lib/";
1395 #ifndef TOOLDIR_BASE_PREFIX
1396 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1398 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1399 static char *tooldir_prefix;
1401 /* Subdirectory to use for locating libraries. Set by
1402 set_multilib_dir based on the compilation options. */
1404 static char *multilib_dir;
1406 /* Clear out the vector of arguments (after a command is executed). */
1414 /* Add one argument to the vector at the end.
1415 This is done when a space is seen or at the end of the line.
1416 If DELETE_ALWAYS is nonzero, the arg is a filename
1417 and the file should be deleted eventually.
1418 If DELETE_FAILURE is nonzero, the arg is a filename
1419 and the file should be deleted if this compilation fails. */
1422 store_arg (arg, delete_always, delete_failure)
1424 int delete_always, delete_failure;
1426 if (argbuf_index + 1 == argbuf_length)
1428 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1431 argbuf[argbuf_index++] = arg;
1432 argbuf[argbuf_index] = 0;
1434 if (delete_always || delete_failure)
1435 record_temp_file (arg, delete_always, delete_failure);
1438 /* Record the names of temporary files we tell compilers to write,
1439 and delete them at the end of the run. */
1441 /* This is the common prefix we use to make temp file names.
1442 It is chosen once for each run of this program.
1443 It is substituted into a spec by %g.
1444 Thus, all temp file names contain this prefix.
1445 In practice, all temp file names start with this prefix.
1447 This prefix comes from the envvar TMPDIR if it is defined;
1448 otherwise, from the P_tmpdir macro if that is defined;
1449 otherwise, in /usr/tmp or /tmp. */
1451 static char *temp_filename;
1453 /* Length of the prefix. */
1455 static int temp_filename_length;
1457 /* Define the list of temporary files to delete. */
1462 struct temp_file *next;
1465 /* Queue of files to delete on success or failure of compilation. */
1466 static struct temp_file *always_delete_queue;
1467 /* Queue of files to delete on failure of compilation. */
1468 static struct temp_file *failure_delete_queue;
1470 /* Record FILENAME as a file to be deleted automatically.
1471 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1472 otherwise delete it in any case.
1473 FAIL_DELETE nonzero means delete it if a compilation step fails;
1474 otherwise delete it in any case. */
1477 record_temp_file (filename, always_delete, fail_delete)
1482 register char *name;
1483 name = xmalloc (strlen (filename) + 1);
1484 strcpy (name, filename);
1488 register struct temp_file *temp;
1489 for (temp = always_delete_queue; temp; temp = temp->next)
1490 if (! strcmp (name, temp->name))
1492 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1493 temp->next = always_delete_queue;
1495 always_delete_queue = temp;
1501 register struct temp_file *temp;
1502 for (temp = failure_delete_queue; temp; temp = temp->next)
1503 if (! strcmp (name, temp->name))
1505 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1506 temp->next = failure_delete_queue;
1508 failure_delete_queue = temp;
1513 /* Delete all the temporary files whose names we previously recorded. */
1516 delete_if_ordinary (name)
1523 printf ("Delete %s? (y or n) ", name);
1527 while ((c = getchar ()) != '\n' && c != EOF) ;
1528 if (i == 'y' || i == 'Y')
1530 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1531 if (unlink (name) < 0)
1533 perror_with_name (name);
1537 delete_temp_files ()
1539 register struct temp_file *temp;
1541 for (temp = always_delete_queue; temp; temp = temp->next)
1542 delete_if_ordinary (temp->name);
1543 always_delete_queue = 0;
1546 /* Delete all the files to be deleted on error. */
1549 delete_failure_queue ()
1551 register struct temp_file *temp;
1553 for (temp = failure_delete_queue; temp; temp = temp->next)
1554 delete_if_ordinary (temp->name);
1558 clear_failure_queue ()
1560 failure_delete_queue = 0;
1563 /* Compute a string to use as the base of all temporary file names.
1564 It is substituted for %g. */
1567 choose_temp_base_try (try, base)
1574 else if (try == (char *)0)
1576 else if (access (try, R_OK | W_OK) != 0)
1589 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1590 base = choose_temp_base_try (getenv ("TMP"), base);
1591 base = choose_temp_base_try (getenv ("TEMP"), base);
1594 base = choose_temp_base_try (P_tmpdir, base);
1597 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1598 dir_separator_str, "tmp"),
1600 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1602 /* If all else fails, use the current directory! */
1603 if (base == (char *)0) base = concat(".", dir_separator_str);
1605 len = strlen (base);
1606 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1608 strcpy (temp_filename, base);
1609 if (len > 0 && temp_filename[len-1] != '/'
1610 && temp_filename[len-1] != DIR_SEPARATOR)
1611 temp_filename[len++] = DIR_SEPARATOR;
1612 strcpy (temp_filename + len, "ccXXXXXX");
1614 mktemp (temp_filename);
1615 temp_filename_length = strlen (temp_filename);
1616 if (temp_filename_length == 0)
1621 /* Routine to add variables to the environment. We do this to pass
1622 the pathname of the gcc driver, and the directories search to the
1623 collect2 program, which is being run as ld. This way, we can be
1624 sure of executing the right compiler when collect2 wants to build
1625 constructors and destructors. Since the environment variables we
1626 use come from an obstack, we don't have to worry about allocating
1635 #ifndef VMS /* nor about VMS */
1637 extern char **environ;
1638 char **old_environ = environ;
1642 int str_len = strlen (str);
1646 while ((ch = *p++) != '\0' && ch != '=')
1652 /* Search for replacing an existing environment variable, and
1653 count the number of total environment variables. */
1654 for (envp = old_environ; *envp; envp++)
1657 if (!strncmp (str, *envp, name_len))
1664 /* Add a new environment variable */
1665 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1667 bcopy ((char *) old_environ, (char *) (environ + 1),
1668 sizeof (char *) * (num_envs+1));
1673 #endif /* HAVE_PUTENV */
1676 /* Build a list of search directories from PATHS.
1677 PREFIX is a string to prepend to the list.
1678 If CHECK_DIR_P is non-zero we ensure the directory exists.
1679 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1680 It is also used by the --print-search-dirs flag. */
1683 build_search_list (paths, prefix, check_dir_p)
1684 struct path_prefix *paths;
1688 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1690 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1691 int first_time = TRUE;
1692 struct prefix_list *pprefix;
1694 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1696 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1698 int len = strlen (pprefix->prefix);
1702 || is_directory (pprefix->prefix, machine_suffix, 0)))
1705 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1708 obstack_grow (&collect_obstack, pprefix->prefix, len);
1709 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1712 if (just_machine_suffix
1713 && pprefix->require_machine_suffix == 2
1715 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1718 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1721 obstack_grow (&collect_obstack, pprefix->prefix, len);
1722 obstack_grow (&collect_obstack, just_machine_suffix,
1726 if (!pprefix->require_machine_suffix)
1729 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1732 obstack_grow (&collect_obstack, pprefix->prefix, len);
1735 obstack_1grow (&collect_obstack, '\0');
1736 return obstack_finish (&collect_obstack);
1739 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1742 putenv_from_prefixes (paths, env_var)
1743 struct path_prefix *paths;
1746 putenv (build_search_list (paths, env_var, 1));
1749 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1750 access to check permissions.
1751 Return 0 if not found, otherwise return its name, allocated with malloc. */
1754 find_a_file (pprefix, name, mode)
1755 struct path_prefix *pprefix;
1760 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1761 struct prefix_list *pl;
1762 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1765 len += strlen (machine_suffix);
1767 temp = xmalloc (len);
1769 /* Determine the filename to execute (special case for absolute paths). */
1771 if (*name == '/' || *name == DIR_SEPARATOR)
1773 if (access (name, mode))
1775 strcpy (temp, name);
1780 for (pl = pprefix->plist; pl; pl = pl->next)
1784 /* Some systems have a suffix for executable files.
1785 So try appending that first. */
1786 if (file_suffix[0] != 0)
1788 strcpy (temp, pl->prefix);
1789 strcat (temp, machine_suffix);
1790 strcat (temp, name);
1791 strcat (temp, file_suffix);
1792 if (access (temp, mode) == 0)
1794 if (pl->used_flag_ptr != 0)
1795 *pl->used_flag_ptr = 1;
1800 /* Now try just the name. */
1801 strcpy (temp, pl->prefix);
1802 strcat (temp, machine_suffix);
1803 strcat (temp, name);
1804 if (access (temp, mode) == 0)
1806 if (pl->used_flag_ptr != 0)
1807 *pl->used_flag_ptr = 1;
1812 /* Certain prefixes are tried with just the machine type,
1813 not the version. This is used for finding as, ld, etc. */
1814 if (just_machine_suffix && pl->require_machine_suffix == 2)
1816 /* Some systems have a suffix for executable files.
1817 So try appending that first. */
1818 if (file_suffix[0] != 0)
1820 strcpy (temp, pl->prefix);
1821 strcat (temp, just_machine_suffix);
1822 strcat (temp, name);
1823 strcat (temp, file_suffix);
1824 if (access (temp, mode) == 0)
1826 if (pl->used_flag_ptr != 0)
1827 *pl->used_flag_ptr = 1;
1832 strcpy (temp, pl->prefix);
1833 strcat (temp, just_machine_suffix);
1834 strcat (temp, name);
1835 if (access (temp, mode) == 0)
1837 if (pl->used_flag_ptr != 0)
1838 *pl->used_flag_ptr = 1;
1843 /* Certain prefixes can't be used without the machine suffix
1844 when the machine or version is explicitly specified. */
1845 if (!pl->require_machine_suffix)
1847 /* Some systems have a suffix for executable files.
1848 So try appending that first. */
1849 if (file_suffix[0] != 0)
1851 strcpy (temp, pl->prefix);
1852 strcat (temp, name);
1853 strcat (temp, file_suffix);
1854 if (access (temp, mode) == 0)
1856 if (pl->used_flag_ptr != 0)
1857 *pl->used_flag_ptr = 1;
1862 strcpy (temp, pl->prefix);
1863 strcat (temp, name);
1864 if (access (temp, mode) == 0)
1866 if (pl->used_flag_ptr != 0)
1867 *pl->used_flag_ptr = 1;
1877 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1878 at the start of the list, otherwise it goes at the end.
1880 If WARN is nonzero, we will warn if no file is found
1881 through this prefix. WARN should point to an int
1882 which will be set to 1 if this entry is used.
1884 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1885 the complete value of machine_suffix.
1886 2 means try both machine_suffix and just_machine_suffix. */
1889 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1890 struct path_prefix *pprefix;
1893 int require_machine_suffix;
1896 struct prefix_list *pl, **prev;
1899 if (!first && pprefix->plist)
1901 for (pl = pprefix->plist; pl->next; pl = pl->next)
1906 prev = &pprefix->plist;
1908 /* Keep track of the longest prefix */
1910 len = strlen (prefix);
1911 if (len > pprefix->max_len)
1912 pprefix->max_len = len;
1914 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1915 pl->prefix = save_string (prefix, len);
1916 pl->require_machine_suffix = require_machine_suffix;
1917 pl->used_flag_ptr = warn;
1924 pl->next = (struct prefix_list *) 0;
1928 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1931 unused_prefix_warnings (pprefix)
1932 struct path_prefix *pprefix;
1934 struct prefix_list *pl = pprefix->plist;
1938 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1940 if (pl->require_machine_suffix && machine_suffix)
1941 error ("file path prefix `%s%s' never used", pl->prefix,
1944 error ("file path prefix `%s' never used", pl->prefix);
1946 /* Prevent duplicate warnings. */
1947 *pl->used_flag_ptr = 1;
1953 /* Get rid of all prefixes built up so far in *PLISTP. */
1956 free_path_prefix (pprefix)
1957 struct path_prefix *pprefix;
1959 struct prefix_list *pl = pprefix->plist;
1960 struct prefix_list *temp;
1966 free (temp->prefix);
1967 free ((char *) temp);
1969 pprefix->plist = (struct prefix_list *) 0;
1972 /* stdin file number. */
1973 #define STDIN_FILE_NO 0
1975 /* stdout file number. */
1976 #define STDOUT_FILE_NO 1
1978 /* value of `pipe': port index for reading. */
1981 /* value of `pipe': port index for writing. */
1982 #define WRITE_PORT 1
1984 /* Pipe waiting from last process, to be used as input for the next one.
1985 Value is STDIN_FILE_NO if no pipe is waiting
1986 (i.e. the next command is the first of a group). */
1988 static int last_pipe_input;
1990 /* Fork one piped subcommand. FUNC is the system call to use
1991 (either execv or execvp). ARGV is the arg vector to use.
1992 NOT_LAST is nonzero if this is not the last subcommand
1993 (i.e. its output should be piped to the next one.) */
1997 #include <process.h>
1999 pexecute (search_flag, program, argv, not_last)
2006 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
2010 int i, el = search_flag ? 0 : 4;
2012 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
2013 rf = scmd + strlen(program) + 2 + el;
2014 sprintf (scmd, "%s%s @%s.gp", program,
2015 (search_flag ? "" : ".exe"), temp_filename);
2016 argfile = fopen (rf, "w");
2018 pfatal_with_name (rf);
2020 for (i=1; argv[i]; i++)
2023 for (cp = argv[i]; *cp; cp++)
2025 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2026 fputc ('\\', argfile);
2027 fputc (*cp, argfile);
2029 fputc ('\n', argfile);
2040 perror_exec (program);
2041 return MIN_FATAL_STATUS << 8;
2048 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2051 pexecute (search_flag, program, argv, not_last)
2057 int (*func)() = (search_flag ? execv : execvp);
2060 int input_desc = last_pipe_input;
2061 int output_desc = STDOUT_FILE_NO;
2062 int retries, sleep_interval;
2064 /* If this isn't the last process, make a pipe for its output,
2065 and record it as waiting to be the input to the next process. */
2069 if (pipe (pdes) < 0)
2070 pfatal_with_name ("pipe");
2071 output_desc = pdes[WRITE_PORT];
2072 last_pipe_input = pdes[READ_PORT];
2075 last_pipe_input = STDIN_FILE_NO;
2077 /* Fork a subprocess; wait and retry if it fails. */
2079 for (retries = 0; retries < 4; retries++)
2084 sleep (sleep_interval);
2085 sleep_interval *= 2;
2092 pfatal_with_name ("fork");
2094 pfatal_with_name ("vfork");
2100 /* Move the input and output pipes into place, if nec. */
2101 if (input_desc != STDIN_FILE_NO)
2103 close (STDIN_FILE_NO);
2107 if (output_desc != STDOUT_FILE_NO)
2109 close (STDOUT_FILE_NO);
2111 close (output_desc);
2114 /* Close the parent's descs that aren't wanted here. */
2115 if (last_pipe_input != STDIN_FILE_NO)
2116 close (last_pipe_input);
2118 /* Exec the program. */
2119 (*func) (program, argv);
2120 perror_exec (program);
2126 /* In the parent, after forking.
2127 Close the descriptors that we made for this child. */
2128 if (input_desc != STDIN_FILE_NO)
2130 if (output_desc != STDOUT_FILE_NO)
2131 close (output_desc);
2133 /* Return child's process number. */
2138 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2143 pexecute (search_flag, program, argv, not_last)
2149 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2156 pexecute (search_flag, program, argv, not_last)
2162 return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
2167 /* Execute the command specified by the arguments on the current line of spec.
2168 When using pipes, this includes several piped-together commands
2169 with `|' between them.
2171 Return 0 if successful, -1 if failed. */
2177 int n_commands; /* # of command. */
2181 char *prog; /* program name. */
2182 char **argv; /* vector of args. */
2183 int pid; /* pid of process for this command. */
2186 struct command *commands; /* each command buffer with above info. */
2188 /* Count # of piped commands. */
2189 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2190 if (strcmp (argbuf[i], "|") == 0)
2193 /* Get storage for each command. */
2195 = (struct command *) alloca (n_commands * sizeof (struct command));
2197 /* Split argbuf into its separate piped processes,
2198 and record info about each one.
2199 Also search for the programs that are to be run. */
2201 commands[0].prog = argbuf[0]; /* first command. */
2202 commands[0].argv = &argbuf[0];
2203 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2205 commands[0].argv[0] = string;
2207 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2208 if (strcmp (argbuf[i], "|") == 0)
2209 { /* each command. */
2211 fatal ("-pipe not supported under MS-DOS");
2213 argbuf[i] = 0; /* termination of command args. */
2214 commands[n_commands].prog = argbuf[i + 1];
2215 commands[n_commands].argv = &argbuf[i + 1];
2216 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2218 commands[n_commands].argv[0] = string;
2222 argbuf[argbuf_index] = 0;
2224 /* If -v, print what we are about to do, and maybe query. */
2228 /* Print each piped command as a separate line. */
2229 for (i = 0; i < n_commands ; i++)
2233 for (j = commands[i].argv; *j; j++)
2234 fprintf (stderr, " %s", *j);
2236 /* Print a pipe symbol after all but the last command. */
2237 if (i + 1 != n_commands)
2238 fprintf (stderr, " |");
2239 fprintf (stderr, "\n");
2243 fprintf (stderr, "\nGo ahead? (y or n) ");
2247 while (getchar () != '\n') ;
2248 if (i != 'y' && i != 'Y')
2253 /* Run each piped subprocess. */
2255 last_pipe_input = STDIN_FILE_NO;
2256 for (i = 0; i < n_commands; i++)
2258 char *string = commands[i].argv[0];
2260 commands[i].pid = pexecute (string != commands[i].prog,
2261 string, commands[i].argv,
2262 i + 1 < n_commands);
2264 if (string != commands[i].prog)
2270 /* Wait for all the subprocesses to finish.
2271 We don't care what order they finish in;
2272 we know that N_COMMANDS waits will get them all.
2273 Ignore subprocesses that we don't know about,
2274 since they can be spawned by the process that exec'ed us. */
2279 for (i = 0; i < n_commands; )
2286 status = pid = commands[i].pid;
2289 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2291 pid = wait (&status);
2297 for (j = 0; j < n_commands; j++)
2298 if (commands[j].pid == pid)
2303 if (WIFSIGNALED (status))
2305 fatal ("Internal compiler error: program %s got fatal signal %d",
2306 commands[j].prog, WTERMSIG (status));
2310 else if (WIFEXITED (status)
2311 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2321 /* Find all the switches given to us
2322 and make a vector describing them.
2323 The elements of the vector are strings, one per switch given.
2324 If a switch uses following arguments, then the `part1' field
2325 is the switch itself and the `args' field
2326 is a null-terminated vector containing the following arguments.
2327 The `live_cond' field is 1 if the switch is true in a conditional spec,
2328 -1 if false (overridden by a later switch), and is initialized to zero.
2329 The `valid' field is nonzero if any spec has looked at this switch;
2330 if it remains zero at the end of the run, it must be meaningless. */
2340 static struct switchstr *switches;
2342 static int n_switches;
2350 /* Also a vector of input files specified. */
2352 static struct infile *infiles;
2354 static int n_infiles;
2356 /* And a vector of corresponding output files is made up later. */
2358 static char **outfiles;
2360 /* Used to track if none of the -B paths are used. */
2363 /* Used to track if standard path isn't used and -b or -V is specified. */
2364 static int warn_std;
2366 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2367 static int *warn_std_ptr = 0;
2369 /* Create the vector `switches' and its contents.
2370 Store its length in `n_switches'. */
2373 process_command (argc, argv)
2379 char *spec_lang = 0;
2380 int last_language_n_infiles;
2383 int lang_n_infiles = 0;
2385 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2390 /* Figure compiler version from version string. */
2392 compiler_version = save_string (version_string, strlen (version_string));
2393 for (temp = compiler_version; *temp; ++temp)
2402 /* Set up the default search paths. */
2404 if (gcc_exec_prefix)
2406 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2407 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2410 /* COMPILER_PATH and LIBRARY_PATH have values
2411 that are lists of directory names with colons. */
2413 temp = getenv ("COMPILER_PATH");
2416 char *startp, *endp;
2417 char *nstore = (char *) alloca (strlen (temp) + 3);
2419 startp = endp = temp;
2422 if (*endp == PATH_SEPARATOR || *endp == 0)
2424 strncpy (nstore, startp, endp-startp);
2426 strcpy (nstore, concat (".", dir_separator_str));
2427 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2429 nstore[endp-startp] = DIR_SEPARATOR;
2430 nstore[endp-startp+1] = 0;
2433 nstore[endp-startp] = 0;
2434 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2437 endp = startp = endp + 1;
2444 temp = getenv ("LIBRARY_PATH");
2445 if (temp && ! cross_compile)
2447 char *startp, *endp;
2448 char *nstore = (char *) alloca (strlen (temp) + 3);
2450 startp = endp = temp;
2453 if (*endp == PATH_SEPARATOR || *endp == 0)
2455 strncpy (nstore, startp, endp-startp);
2457 strcpy (nstore, concat (".", dir_separator_str));
2458 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2460 nstore[endp-startp] = DIR_SEPARATOR;
2461 nstore[endp-startp+1] = 0;
2464 nstore[endp-startp] = 0;
2465 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2468 endp = startp = endp + 1;
2475 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2476 temp = getenv ("LPATH");
2477 if (temp && ! cross_compile)
2479 char *startp, *endp;
2480 char *nstore = (char *) alloca (strlen (temp) + 3);
2482 startp = endp = temp;
2485 if (*endp == PATH_SEPARATOR || *endp == 0)
2487 strncpy (nstore, startp, endp-startp);
2489 strcpy (nstore, concat (".", dir_separator_str));
2490 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2492 nstore[endp-startp] = DIR_SEPARATOR;
2493 nstore[endp-startp+1] = 0;
2496 nstore[endp-startp] = 0;
2497 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2500 endp = startp = endp + 1;
2507 /* Convert new-style -- options to old-style. */
2508 translate_options (&argc, &argv);
2510 /* Scan argv twice. Here, the first time, just count how many switches
2511 there will be in their vector, and how many input files in theirs.
2512 Here we also parse the switches that cc itself uses (e.g. -v). */
2514 for (i = 1; i < argc; i++)
2516 if (! strcmp (argv[i], "-dumpspecs"))
2518 printf ("*asm:\n%s\n\n", asm_spec);
2519 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2520 printf ("*cpp:\n%s\n\n", cpp_spec);
2521 printf ("*cc1:\n%s\n\n", cc1_spec);
2522 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2523 printf ("*endfile:\n%s\n\n", endfile_spec);
2524 printf ("*link:\n%s\n\n", link_spec);
2525 printf ("*lib:\n%s\n\n", lib_spec);
2526 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2527 printf ("*startfile:\n%s\n\n", startfile_spec);
2528 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2529 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2530 printf ("*predefines:\n%s\n\n", cpp_predefines);
2531 printf ("*cross_compile:\n%d\n\n", cross_compile);
2532 printf ("*multilib:\n%s\n\n", multilib_select);
2537 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2538 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2539 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2544 else if (! strcmp (argv[i], "-dumpversion"))
2546 printf ("%s\n", version_string);
2549 else if (! strcmp (argv[i], "-dumpmachine"))
2551 printf ("%s\n", spec_machine);
2554 else if (! strcmp (argv[i], "-print-search-dirs"))
2555 print_search_dirs = 1;
2556 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2557 print_file_name = "libgcc.a";
2558 else if (! strncmp (argv[i], "-print-file-name=", 17))
2559 print_file_name = argv[i] + 17;
2560 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2561 print_prog_name = argv[i] + 17;
2562 else if (! strcmp (argv[i], "-print-multi-lib"))
2563 print_multi_lib = 1;
2564 else if (! strcmp (argv[i], "-print-multi-directory"))
2565 print_multi_directory = 1;
2566 else if (! strncmp (argv[i], "-Wa,", 4))
2569 /* Pass the rest of this option to the assembler. */
2571 n_assembler_options++;
2572 if (!assembler_options)
2574 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2577 = (char **) xrealloc (assembler_options,
2578 n_assembler_options * sizeof (char **));
2580 /* Split the argument at commas. */
2582 for (j = 4; argv[i][j]; j++)
2583 if (argv[i][j] == ',')
2585 assembler_options[n_assembler_options - 1]
2586 = save_string (argv[i] + prev, j - prev);
2587 n_assembler_options++;
2589 = (char **) xrealloc (assembler_options,
2590 n_assembler_options * sizeof (char **));
2593 /* Record the part after the last comma. */
2594 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2596 else if (! strncmp (argv[i], "-Wp,", 4))
2599 /* Pass the rest of this option to the preprocessor. */
2601 n_preprocessor_options++;
2602 if (!preprocessor_options)
2603 preprocessor_options
2604 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2606 preprocessor_options
2607 = (char **) xrealloc (preprocessor_options,
2608 n_preprocessor_options * sizeof (char **));
2610 /* Split the argument at commas. */
2612 for (j = 4; argv[i][j]; j++)
2613 if (argv[i][j] == ',')
2615 preprocessor_options[n_preprocessor_options - 1]
2616 = save_string (argv[i] + prev, j - prev);
2617 n_preprocessor_options++;
2618 preprocessor_options
2619 = (char **) xrealloc (preprocessor_options,
2620 n_preprocessor_options * sizeof (char **));
2623 /* Record the part after the last comma. */
2624 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2626 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2627 /* The +e options to the C++ front-end. */
2629 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2632 /* Split the argument at commas. */
2633 for (j = 3; argv[i][j]; j++)
2634 n_infiles += (argv[i][j] == ',');
2636 else if (strcmp (argv[i], "-Xlinker") == 0)
2639 fatal ("argument to `-Xlinker' is missing");
2644 else if (strncmp (argv[i], "-l", 2) == 0)
2646 else if (strcmp (argv[i], "-save-temps") == 0)
2648 save_temps_flag = 1;
2651 else if (argv[i][0] == '-' && argv[i][1] != 0)
2653 register char *p = &argv[i][1];
2654 register int c = *p;
2659 if (p[1] == 0 && i + 1 == argc)
2660 fatal ("argument to `-b' is missing");
2662 spec_machine = argv[++i];
2664 spec_machine = p + 1;
2666 warn_std_ptr = &warn_std;
2671 int *temp = (int *) xmalloc (sizeof (int));
2673 if (p[1] == 0 && i + 1 == argc)
2674 fatal ("argument to `-B' is missing");
2679 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2680 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2681 add_prefix (&include_prefixes, concat (value, "include"),
2684 /* As a kludge, if the arg is "[foo/]stageN/", just add
2685 "[foo/]include" to the include prefix. */
2687 int len = strlen (value);
2690 && (value[len - 8] == '/'
2691 || value[len - 8] == DIR_SEPARATOR)))
2692 && strncmp (value + len - 7, "stage", 5) == 0
2693 && isdigit (value[len - 2])
2694 && (value[len - 1] == '/'
2695 || value[len - 1] == DIR_SEPARATOR))
2698 add_prefix (&include_prefixes, "include",
2702 char *string = xmalloc (len + 1);
2703 strncpy (string, value, len-7);
2704 strcat (string, "include");
2705 add_prefix (&include_prefixes, string,
2713 case 'v': /* Print our subcommands and print versions. */
2715 /* If they do anything other than exactly `-v', don't set
2716 verbose_flag; rather, continue on to give the error. */
2723 if (p[1] == 0 && i + 1 == argc)
2724 fatal ("argument to `-V' is missing");
2726 spec_version = argv[++i];
2728 spec_version = p + 1;
2729 compiler_version = spec_version;
2730 warn_std_ptr = &warn_std;
2750 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2751 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2752 else if (WORD_SWITCH_TAKES_ARG (p))
2753 i += WORD_SWITCH_TAKES_ARG (p);
2763 if (have_c && have_o && lang_n_infiles > 1)
2764 fatal ("cannot specify -o with -c and multiple compilations");
2766 /* Set up the search paths before we go looking for config files. */
2768 /* These come before the md prefixes so that we will find gcc's subcommands
2769 (such as cpp) rather than those of the host system. */
2770 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2771 as well as trying the machine and the version. */
2773 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2774 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2777 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2778 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
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 add_prefix (&exec_prefixes,
2814 concat3 (tooldir_prefix, "bin", dir_separator_str),
2816 add_prefix (&startfile_prefixes,
2817 concat3 (tooldir_prefix, "lib", dir_separator_str),
2820 /* More prefixes are enabled in main, after we read the specs file
2821 and determine whether this is cross-compilation or not. */
2824 /* Then create the space for the vectors and scan again. */
2826 switches = ((struct switchstr *)
2827 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2828 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2831 last_language_n_infiles = -1;
2833 /* This, time, copy the text of each switch and store a pointer
2834 to the copy in the vector of switches.
2835 Store all the infiles in their vector. */
2837 for (i = 1; i < argc; i++)
2839 /* Just skip the switches that were handled by the preceding loop. */
2840 if (! strncmp (argv[i], "-Wa,", 4))
2842 else if (! strncmp (argv[i], "-Wp,", 4))
2844 else if (! strcmp (argv[i], "-print-search-dirs"))
2846 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2848 else if (! strncmp (argv[i], "-print-file-name=", 17))
2850 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2852 else if (! strcmp (argv[i], "-print-multi-lib"))
2854 else if (! strcmp (argv[i], "-print-multi-directory"))
2856 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2858 /* Compensate for the +e options to the C++ front-end;
2859 they're there simply for cfront call-compatibility. We do
2860 some magic in default_compilers to pass them down properly.
2861 Note we deliberately start at the `+' here, to avoid passing
2862 -e0 or -e1 down into the linker. */
2863 switches[n_switches].part1 = &argv[i][0];
2864 switches[n_switches].args = 0;
2865 switches[n_switches].live_cond = 0;
2866 switches[n_switches].valid = 0;
2869 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2872 /* Split the argument at commas. */
2874 for (j = 4; argv[i][j]; j++)
2875 if (argv[i][j] == ',')
2877 infiles[n_infiles].language = 0;
2878 infiles[n_infiles++].name
2879 = save_string (argv[i] + prev, j - prev);
2882 /* Record the part after the last comma. */
2883 infiles[n_infiles].language = 0;
2884 infiles[n_infiles++].name = argv[i] + prev;
2886 else if (strcmp (argv[i], "-Xlinker") == 0)
2888 infiles[n_infiles].language = 0;
2889 infiles[n_infiles++].name = argv[++i];
2891 else if (strncmp (argv[i], "-l", 2) == 0)
2893 infiles[n_infiles].language = 0;
2894 infiles[n_infiles++].name = argv[i];
2896 else if (argv[i][0] == '-' && argv[i][1] != 0)
2898 register char *p = &argv[i][1];
2899 register int c = *p;
2901 if (c == 'B' || c == 'b' || c == 'V')
2903 /* Skip a separate arg, if any. */
2910 if (p[1] == 0 && i + 1 == argc)
2911 fatal ("argument to `-x' is missing");
2913 spec_lang = argv[++i];
2916 if (! strcmp (spec_lang, "none"))
2917 /* Suppress the warning if -xnone comes after the last input
2918 file, because alternate command interfaces like g++ might
2919 find it useful to place -xnone after each input file. */
2922 last_language_n_infiles = n_infiles;
2925 switches[n_switches].part1 = p;
2926 /* Deal with option arguments in separate argv elements. */
2927 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2928 || WORD_SWITCH_TAKES_ARG (p))
2931 int n_args = WORD_SWITCH_TAKES_ARG (p);
2935 /* Count only the option arguments in separate argv elements. */
2936 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2938 if (i + n_args >= argc)
2939 fatal ("argument to `-%s' is missing", p);
2940 switches[n_switches].args
2941 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2943 switches[n_switches].args[j++] = argv[++i];
2944 /* Null-terminate the vector. */
2945 switches[n_switches].args[j] = 0;
2947 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2949 /* On some systems, ld cannot handle -o or -L without space.
2950 So split the -o or -L from its argument. */
2951 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2952 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2953 switches[n_switches].args[0] = xmalloc (strlen (p));
2954 strcpy (switches[n_switches].args[0], &p[1]);
2955 switches[n_switches].args[1] = 0;
2958 switches[n_switches].args = 0;
2960 switches[n_switches].live_cond = 0;
2961 switches[n_switches].valid = 0;
2962 /* This is always valid, since gcc.c itself understands it. */
2963 if (!strcmp (p, "save-temps"))
2964 switches[n_switches].valid = 1;
2969 #ifdef HAVE_OBJECT_SUFFIX
2970 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2971 if (strlen (argv[i]) > 2
2972 && argv[i][strlen (argv[i]) - 2] == '.'
2973 && argv[i][strlen (argv[i]) - 1] == 'o')
2977 for (j = 0; j < strlen (argv[i]) - 2; j++)
2978 obstack_1grow (&obstack, argv[i][j]);
2980 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2981 obstack_1grow (&obstack, 0);
2982 argv[i] = obstack_finish (&obstack);
2986 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2988 perror_with_name (argv[i]);
2993 infiles[n_infiles].language = spec_lang;
2994 infiles[n_infiles++].name = argv[i];
2999 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3000 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3002 switches[n_switches].part1 = 0;
3003 infiles[n_infiles].name = 0;
3006 /* Process a spec string, accumulating and running commands. */
3008 /* These variables describe the input file name.
3009 input_file_number is the index on outfiles of this file,
3010 so that the output file name can be stored for later use by %o.
3011 input_basename is the start of the part of the input file
3012 sans all directory names, and basename_length is the number
3013 of characters starting there excluding the suffix .c or whatever. */
3015 static char *input_filename;
3016 static int input_file_number;
3017 static int input_filename_length;
3018 static int basename_length;
3019 static char *input_basename;
3020 static char *input_suffix;
3022 /* These are variables used within do_spec and do_spec_1. */
3024 /* Nonzero if an arg has been started and not yet terminated
3025 (with space, tab or newline). */
3026 static int arg_going;
3028 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3029 is a temporary file name. */
3030 static int delete_this_arg;
3032 /* Nonzero means %w has been seen; the next arg to be terminated
3033 is the output file name of this compilation. */
3034 static int this_is_output_file;
3036 /* Nonzero means %s has been seen; the next arg to be terminated
3037 is the name of a library file and we should try the standard
3038 search dirs for it. */
3039 static int this_is_library_file;
3041 /* Nonzero means that the input of this command is coming from a pipe. */
3042 static int input_from_pipe;
3044 /* Process the spec SPEC and run the commands specified therein.
3045 Returns 0 if the spec is successfully processed; -1 if failed. */
3055 delete_this_arg = 0;
3056 this_is_output_file = 0;
3057 this_is_library_file = 0;
3058 input_from_pipe = 0;
3060 value = do_spec_1 (spec, 0, NULL_PTR);
3062 /* Force out any unfinished command.
3063 If -pipe, this forces out the last command if it ended in `|'. */
3066 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3069 if (argbuf_index > 0)
3076 /* Process the sub-spec SPEC as a portion of a larger spec.
3077 This is like processing a whole spec except that we do
3078 not initialize at the beginning and we do not supply a
3079 newline by default at the end.
3080 INSWITCH nonzero means don't process %-sequences in SPEC;
3081 in this case, % is treated as an ordinary character.
3082 This is used while substituting switches.
3083 INSWITCH nonzero also causes SPC not to terminate an argument.
3085 Value is zero unless a line was finished
3086 and the command on that line reported an error. */
3089 do_spec_1 (spec, inswitch, soft_matched_part)
3092 char *soft_matched_part;
3094 register char *p = spec;
3101 /* If substituting a switch, treat all chars like letters.
3102 Otherwise, NL, SPC, TAB and % are special. */
3103 switch (inswitch ? 'a' : c)
3106 /* End of line: finish any pending argument,
3107 then run the pending command if one has been started. */
3110 obstack_1grow (&obstack, 0);
3111 string = obstack_finish (&obstack);
3112 if (this_is_library_file)
3113 string = find_file (string);
3114 store_arg (string, delete_this_arg, this_is_output_file);
3115 if (this_is_output_file)
3116 outfiles[input_file_number] = string;
3120 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3122 for (i = 0; i < n_switches; i++)
3123 if (!strcmp (switches[i].part1, "pipe"))
3126 /* A `|' before the newline means use a pipe here,
3127 but only if -pipe was specified.
3128 Otherwise, execute now and don't pass the `|' as an arg. */
3131 input_from_pipe = 1;
3132 switches[i].valid = 1;
3139 if (argbuf_index > 0)
3145 /* Reinitialize for a new command, and for a new argument. */
3148 delete_this_arg = 0;
3149 this_is_output_file = 0;
3150 this_is_library_file = 0;
3151 input_from_pipe = 0;
3155 /* End any pending argument. */
3158 obstack_1grow (&obstack, 0);
3159 string = obstack_finish (&obstack);
3160 if (this_is_library_file)
3161 string = find_file (string);
3162 store_arg (string, delete_this_arg, this_is_output_file);
3163 if (this_is_output_file)
3164 outfiles[input_file_number] = string;
3168 obstack_1grow (&obstack, c);
3174 /* Space or tab ends an argument if one is pending. */
3177 obstack_1grow (&obstack, 0);
3178 string = obstack_finish (&obstack);
3179 if (this_is_library_file)
3180 string = find_file (string);
3181 store_arg (string, delete_this_arg, this_is_output_file);
3182 if (this_is_output_file)
3183 outfiles[input_file_number] = string;
3185 /* Reinitialize for a new argument. */
3187 delete_this_arg = 0;
3188 this_is_output_file = 0;
3189 this_is_library_file = 0;
3196 fatal ("Invalid specification! Bug in cc.");
3199 obstack_grow (&obstack, input_basename, basename_length);
3204 delete_this_arg = 2;
3207 /* Dump out the directories specified with LIBRARY_PATH,
3208 followed by the absolute directories
3209 that we search for startfiles. */
3212 struct prefix_list *pl = startfile_prefixes.plist;
3214 char *buffer = (char *) xmalloc (bufsize);
3217 for (; pl; pl = pl->next)
3219 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3220 /* Used on systems which record the specified -L dirs
3221 and use them to search for dynamic linking. */
3222 /* Relative directories always come from -B,
3223 and it is better not to use them for searching
3224 at run time. In particular, stage1 loses */
3225 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3228 /* Try subdirectory if there is one. */
3229 if (multilib_dir != NULL)
3233 if (strlen (pl->prefix) + strlen (machine_suffix)
3235 bufsize = (strlen (pl->prefix)
3236 + strlen (machine_suffix)) * 2 + 1;
3237 buffer = (char *) xrealloc (buffer, bufsize);
3238 strcpy (buffer, pl->prefix);
3239 strcat (buffer, machine_suffix);
3240 if (is_directory (buffer, multilib_dir, 1))
3242 do_spec_1 ("-L", 0, NULL_PTR);
3243 #ifdef SPACE_AFTER_L_OPTION
3244 do_spec_1 (" ", 0, NULL_PTR);
3246 do_spec_1 (buffer, 1, NULL_PTR);
3247 do_spec_1 (multilib_dir, 1, NULL_PTR);
3248 /* Make this a separate argument. */
3249 do_spec_1 (" ", 0, NULL_PTR);
3252 if (!pl->require_machine_suffix)
3254 if (is_directory (pl->prefix, multilib_dir, 1))
3256 do_spec_1 ("-L", 0, NULL_PTR);
3257 #ifdef SPACE_AFTER_L_OPTION
3258 do_spec_1 (" ", 0, NULL_PTR);
3260 do_spec_1 (pl->prefix, 1, NULL_PTR);
3261 do_spec_1 (multilib_dir, 1, NULL_PTR);
3262 /* Make this a separate argument. */
3263 do_spec_1 (" ", 0, NULL_PTR);
3269 if (is_directory (pl->prefix, machine_suffix, 1))
3271 do_spec_1 ("-L", 0, NULL_PTR);
3272 #ifdef SPACE_AFTER_L_OPTION
3273 do_spec_1 (" ", 0, NULL_PTR);
3275 do_spec_1 (pl->prefix, 1, NULL_PTR);
3276 /* Remove slash from machine_suffix. */
3277 if (strlen (machine_suffix) >= bufsize)
3278 bufsize = strlen (machine_suffix) * 2 + 1;
3279 buffer = (char *) xrealloc (buffer, bufsize);
3280 strcpy (buffer, machine_suffix);
3281 idx = strlen (buffer);
3282 if (buffer[idx - 1] == '/'
3283 || buffer[idx - 1] == DIR_SEPARATOR)
3284 buffer[idx - 1] = 0;
3285 do_spec_1 (buffer, 1, NULL_PTR);
3286 /* Make this a separate argument. */
3287 do_spec_1 (" ", 0, NULL_PTR);
3290 if (!pl->require_machine_suffix)
3292 if (is_directory (pl->prefix, "", 1))
3294 do_spec_1 ("-L", 0, NULL_PTR);
3295 #ifdef SPACE_AFTER_L_OPTION
3296 do_spec_1 (" ", 0, NULL_PTR);
3298 /* Remove slash from pl->prefix. */
3299 if (strlen (pl->prefix) >= bufsize)
3300 bufsize = strlen (pl->prefix) * 2 + 1;
3301 buffer = (char *) xrealloc (buffer, bufsize);
3302 strcpy (buffer, pl->prefix);
3303 idx = strlen (buffer);
3304 if (buffer[idx - 1] == '/'
3305 || buffer[idx - 1] == DIR_SEPARATOR)
3306 buffer[idx - 1] = 0;
3307 do_spec_1 (buffer, 1, NULL_PTR);
3308 /* Make this a separate argument. */
3309 do_spec_1 (" ", 0, NULL_PTR);
3318 /* {...:%efoo} means report an error with `foo' as error message
3319 and don't execute any more commands for this file. */
3323 while (*p != 0 && *p != '\n') p++;
3324 buf = (char *) alloca (p - q + 1);
3325 strncpy (buf, q, p - q);
3335 if (save_temps_flag)
3337 obstack_grow (&obstack, input_basename, basename_length);
3338 delete_this_arg = 0;
3342 #ifdef MKTEMP_EACH_FILE
3343 /* ??? This has a problem: the total number of
3344 values mktemp can return is limited.
3345 That matters for the names of object files.
3346 In 2.4, do something about that. */
3347 struct temp_name *t;
3349 while (*p == '.' || isalpha (*p)
3350 || (p[0] == '%' && p[1] == 'O'))
3353 /* See if we already have an association of %g/%u/%U and
3355 for (t = temp_names; t; t = t->next)
3356 if (t->length == p - suffix
3357 && strncmp (t->suffix, suffix, p - suffix) == 0
3358 && t->unique == (c != 'g'))
3361 /* Make a new association if needed. %u requires one. */
3362 if (t == 0 || c == 'u')
3366 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3367 t->next = temp_names;
3370 t->length = p - suffix;
3371 t->suffix = save_string (suffix, p - suffix);
3372 t->unique = (c != 'g');
3373 choose_temp_base ();
3374 t->filename = temp_filename;
3375 t->filename_length = temp_filename_length;
3378 obstack_grow (&obstack, t->filename, t->filename_length);
3379 delete_this_arg = 1;
3381 obstack_grow (&obstack, temp_filename, temp_filename_length);
3382 if (c == 'u' || c == 'U')
3388 sprintf (buff, "%d", unique);
3389 obstack_grow (&obstack, buff, strlen (buff));
3392 delete_this_arg = 1;
3398 obstack_grow (&obstack, input_filename, input_filename_length);
3404 struct prefix_list *pl = include_prefixes.plist;
3406 if (gcc_exec_prefix)
3408 do_spec_1 ("-iprefix", 1, NULL_PTR);
3409 /* Make this a separate argument. */
3410 do_spec_1 (" ", 0, NULL_PTR);
3411 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3412 do_spec_1 (" ", 0, NULL_PTR);
3415 for (; pl; pl = pl->next)
3417 do_spec_1 ("-isystem", 1, NULL_PTR);
3418 /* Make this a separate argument. */
3419 do_spec_1 (" ", 0, NULL_PTR);
3420 do_spec_1 (pl->prefix, 1, NULL_PTR);
3421 do_spec_1 (" ", 0, NULL_PTR);
3427 for (i = 0; i < n_infiles; i++)
3428 store_arg (outfiles[i], 0, 0);
3432 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3437 this_is_library_file = 1;
3441 this_is_output_file = 1;
3446 int cur_index = argbuf_index;
3447 /* Handle the {...} following the %W. */
3450 p = handle_braces (p + 1);
3453 /* If any args were output, mark the last one for deletion
3455 if (argbuf_index != cur_index)
3456 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3460 /* %x{OPTION} records OPTION for %X to output. */
3466 /* Skip past the option value and make a copy. */
3471 string = save_string (p1 + 1, p - p1 - 2);
3473 /* See if we already recorded this option. */
3474 for (i = 0; i < n_linker_options; i++)
3475 if (! strcmp (string, linker_options[i]))
3481 /* This option is new; add it. */
3483 if (!linker_options)
3485 = (char **) xmalloc (n_linker_options * sizeof (char **));
3488 = (char **) xrealloc (linker_options,
3489 n_linker_options * sizeof (char **));
3491 linker_options[n_linker_options - 1] = string;
3495 /* Dump out the options accumulated previously using %x. */
3497 for (i = 0; i < n_linker_options; i++)
3499 do_spec_1 (linker_options[i], 1, NULL_PTR);
3500 /* Make each accumulated option a separate argument. */
3501 do_spec_1 (" ", 0, NULL_PTR);
3505 /* Dump out the options accumulated previously using -Wa,. */
3507 for (i = 0; i < n_assembler_options; i++)
3509 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3510 /* Make each accumulated option a separate argument. */
3511 do_spec_1 (" ", 0, NULL_PTR);
3515 /* Dump out the options accumulated previously using -Wp,. */
3517 for (i = 0; i < n_preprocessor_options; i++)
3519 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3520 /* Make each accumulated option a separate argument. */
3521 do_spec_1 (" ", 0, NULL_PTR);
3525 /* Here are digits and numbers that just process
3526 a certain constant string as a spec. */
3529 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3535 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3541 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3547 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3553 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3559 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3565 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3571 value = do_spec_1 (link_spec, 0, NULL_PTR);
3577 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3583 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3590 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3594 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3598 if (! strncmp (y, "-D", 2))
3599 /* Copy the whole option. */
3600 while (*y && *y != ' ' && *y != '\t')
3602 else if (*y == ' ' || *y == '\t')
3603 /* Copy whitespace to the result. */
3605 /* Don't copy other options. */
3612 value = do_spec_1 (buf, 0, NULL_PTR);
3620 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3624 /* Copy all of CPP_PREDEFINES into BUF,
3625 but put __ after every -D and at the end of each arg. */
3629 if (! strncmp (y, "-D", 2))
3637 || (*(y+1) != '_' && ! isupper (*(y+1))))
3639 /* Stick __ at front of macro name. */
3642 /* Arrange to stick __ at the end as well. */
3646 /* Copy the macro name. */
3647 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3656 /* Copy the value given, if any. */
3657 while (*y && *y != ' ' && *y != '\t')
3660 else if (*y == ' ' || *y == '\t')
3661 /* Copy whitespace to the result. */
3663 /* Don't copy -A options */
3669 /* Copy all of CPP_PREDEFINES into BUF,
3670 but put __ after every -D. */
3674 if (! strncmp (y, "-D", 2))
3679 || (*(y+1) != '_' && ! isupper (*(y+1))))
3681 /* Stick -D__ at front of macro name. */
3687 /* Copy the macro name. */
3688 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3691 /* Copy the value given, if any. */
3692 while (*y && *y != ' ' && *y != '\t')
3697 /* Do not copy this macro - we have just done it before */
3698 while (*y && *y != ' ' && *y != '\t')
3702 else if (*y == ' ' || *y == '\t')
3703 /* Copy whitespace to the result. */
3705 /* Don't copy -A options */
3711 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3715 if (! strncmp (y, "-A", 2))
3716 /* Copy the whole option. */
3717 while (*y && *y != ' ' && *y != '\t')
3719 else if (*y == ' ' || *y == '\t')
3720 /* Copy whitespace to the result. */
3722 /* Don't copy other options. */
3729 value = do_spec_1 (buf, 0, NULL_PTR);
3736 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3741 /* Here we define characters other than letters and digits. */
3744 p = handle_braces (p);
3750 obstack_1grow (&obstack, '%');
3754 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3755 do_spec_1 (" ", 0, NULL_PTR);
3758 /* Process a string found as the value of a spec given by name.
3759 This feature allows individual machine descriptions
3760 to add and use their own specs.
3761 %[...] modifies -D options the way %P does;
3762 %(...) uses the spec unmodified. */
3767 struct spec_list *sl;
3770 /* The string after the S/P is the name of a spec that is to be
3772 while (*p && *p != ')' && *p != ']')
3775 /* See if it's in the list */
3776 for (len = p - name, sl = specs; sl; sl = sl->next)
3777 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3787 value = do_spec_1 (name, 0, NULL_PTR);
3793 char *x = (char *) alloca (strlen (name) * 2 + 1);
3797 /* Copy all of NAME into BUF, but put __ after
3798 every -D and at the end of each arg, */
3801 if (! strncmp (y, "-D", 2))
3809 else if (*y == ' ' || *y == 0)
3823 value = do_spec_1 (buf, 0, NULL_PTR);
3829 /* Discard the closing paren or bracket. */
3837 int c1 = *p++; /* Select first or second version number. */
3838 char *v = compiler_version;
3840 /* If desired, advance to second version number. */
3843 /* Set V after the first period. */
3844 while (*v != 0 && *v != ' ' && *v != '.')
3849 /* Set Q at the next period or at the end. */
3851 while (*q != 0 && *q != ' ' && *q != '.')
3853 /* Empty string means zero. */
3859 /* Put that part into the command. */
3860 obstack_grow (&obstack, v, q - v);
3866 if (input_from_pipe)
3867 do_spec_1 ("-", 0, NULL_PTR);
3876 /* Backslash: treat next character as ordinary. */
3881 /* Ordinary character: put it into the current argument. */
3882 obstack_1grow (&obstack, c);
3886 return 0; /* End of string */
3889 /* Return 0 if we call do_spec_1 and that returns -1. */
3902 /* A `|' after the open-brace means,
3903 if the test fails, output a single minus sign rather than nothing.
3904 This is used in %{|!pipe:...}. */
3908 /* A `!' after the open-brace negates the condition:
3909 succeed if the specified switch is not present. */
3913 /* A `.' after the open-brace means test against the current suffix. */
3923 while (*p != ':' && *p != '}') p++;
3926 register int count = 1;
3944 int found = (input_suffix != 0
3945 && strlen (input_suffix) == p - filter
3946 && strncmp (input_suffix, filter, p - filter) == 0);
3952 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3957 else if (p[-1] == '*' && p[0] == '}')
3959 /* Substitute all matching switches as separate args. */
3962 for (i = 0; i < n_switches; i++)
3963 if (!strncmp (switches[i].part1, filter, p - filter)
3964 && check_live_switch (i, p - filter))
3969 /* Test for presence of the specified switch. */
3973 /* If name specified ends in *, as in {x*:...},
3974 check for %* and handle that case. */
3975 if (p[-1] == '*' && !negate)
3980 /* First see whether we have %*. */
3984 if (*r == '%' && r[1] == '*')
3988 /* If we do, handle that case. */
3991 /* Substitute all matching switches as separate args.
3992 But do this by substituting for %*
3993 in the text that follows the colon. */
3995 unsigned hard_match_len = p - filter - 1;
3996 char *string = save_string (p + 1, q - p - 2);
3998 for (i = 0; i < n_switches; i++)
3999 if (!strncmp (switches[i].part1, filter, hard_match_len)
4000 && check_live_switch (i, -1))
4002 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4003 /* Pass any arguments this switch has. */
4011 /* If name specified ends in *, as in {x*:...},
4012 check for presence of any switch name starting with x. */
4015 for (i = 0; i < n_switches; i++)
4017 unsigned hard_match_len = p - filter - 1;
4019 if (!strncmp (switches[i].part1, filter, hard_match_len)
4020 && check_live_switch (i, hard_match_len))
4026 /* Otherwise, check for presence of exact name specified. */
4029 for (i = 0; i < n_switches; i++)
4031 if (!strncmp (switches[i].part1, filter, p - filter)
4032 && switches[i].part1[p - filter] == 0
4033 && check_live_switch (i, -1))
4041 /* If it is as desired (present for %{s...}, absent for %{-s...})
4042 then substitute either the switch or the specified
4043 conditional text. */
4044 if (present != negate)
4052 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4058 /* Here if a %{|...} conditional fails: output a minus sign,
4059 which means "standard output" or "standard input". */
4060 do_spec_1 ("-", 0, NULL_PTR);
4067 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4068 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4069 spec, or -1 if either exact match or %* is used.
4071 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4072 whose value does not begin with "no-" is obsoleted by the same value
4073 with the "no-", similarly for a switch with the "no-" prefix. */
4076 check_live_switch (switchnum, prefix_length)
4080 char *name = switches[switchnum].part1;
4083 /* In the common case of {<at-most-one-letter>*}, a negating
4084 switch would always match, so ignore that case. We will just
4085 send the conflicting switches to the compiler phase. */
4086 if (prefix_length >= 0 && prefix_length <= 1)
4089 /* If we already processed this switch and determined if it was
4090 live or not, return our past determination. */
4091 if (switches[switchnum].live_cond != 0)
4092 return switches[switchnum].live_cond > 0;
4094 /* Now search for duplicate in a manner that depends on the name. */
4098 for (i = switchnum + 1; i < n_switches; i++)
4099 if (switches[i].part1[0] == 'O')
4101 switches[switchnum].valid = 1;
4102 switches[switchnum].live_cond = -1;
4107 case 'W': case 'f': case 'm':
4108 if (! strncmp (name + 1, "no-", 3))
4110 /* We have Xno-YYY, search for XYYY. */
4111 for (i = switchnum + 1; i < n_switches; i++)
4112 if (switches[i].part1[0] == name[0]
4113 && ! strcmp (&switches[i].part1[1], &name[4]))
4115 switches[switchnum].valid = 1;
4116 switches[switchnum].live_cond = -1;
4122 /* We have XYYY, search for Xno-YYY. */
4123 for (i = switchnum + 1; i < n_switches; i++)
4124 if (switches[i].part1[0] == name[0]
4125 && switches[i].part1[1] == 'n'
4126 && switches[i].part1[2] == 'o'
4127 && switches[i].part1[3] == '-'
4128 && !strcmp (&switches[i].part1[4], &name[1]))
4130 switches[switchnum].valid = 1;
4131 switches[switchnum].live_cond = -1;
4138 /* Otherwise the switch is live. */
4139 switches[switchnum].live_cond = 1;
4143 /* Pass a switch to the current accumulating command
4144 in the same form that we received it.
4145 SWITCHNUM identifies the switch; it is an index into
4146 the vector of switches gcc received, which is `switches'.
4147 This cannot fail since it never finishes a command line.
4149 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4152 give_switch (switchnum, omit_first_word)
4154 int omit_first_word;
4156 if (!omit_first_word)
4158 do_spec_1 ("-", 0, NULL_PTR);
4159 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4161 do_spec_1 (" ", 0, NULL_PTR);
4162 if (switches[switchnum].args != 0)
4165 for (p = switches[switchnum].args; *p; p++)
4167 do_spec_1 (*p, 1, NULL_PTR);
4168 do_spec_1 (" ", 0, NULL_PTR);
4171 switches[switchnum].valid = 1;
4174 /* Search for a file named NAME trying various prefixes including the
4175 user's -B prefix and some standard ones.
4176 Return the absolute file name found. If nothing is found, return NAME. */
4184 /* Try multilib_dir if it is defined. */
4185 if (multilib_dir != NULL)
4189 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4190 strcpy (try, multilib_dir);
4191 strcat (try, dir_separator_str);
4194 newname = find_a_file (&startfile_prefixes, try, R_OK);
4196 /* If we don't find it in the multi library dir, then fall
4197 through and look for it in the normal places. */
4198 if (newname != NULL)
4202 newname = find_a_file (&startfile_prefixes, name, R_OK);
4203 return newname ? newname : name;
4206 /* Determine whether a directory exists. If LINKER, return 0 for
4207 certain fixed names not needed by the linker. If not LINKER, it is
4208 only important to return 0 if the host machine has a small ARG_MAX
4212 is_directory (path1, path2, linker)
4217 int len1 = strlen (path1);
4218 int len2 = strlen (path2);
4219 char *path = (char *) alloca (3 + len1 + len2);
4223 #ifndef SMALL_ARG_MAX
4228 /* Construct the path from the two parts. Ensure the string ends with "/.".
4229 The resulting path will be a directory even if the given path is a
4231 bcopy (path1, path, len1);
4232 bcopy (path2, path + len1, len2);
4233 cp = path + len1 + len2;
4234 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4235 *cp++ = DIR_SEPARATOR;
4239 /* Exclude directories that the linker is known to search. */
4242 && strcmp (path, concat4 (dir_separator_str, "lib",
4243 dir_separator_str, ".")) == 0)
4245 && strcmp (path, concat6 (dir_separator_str, "usr",
4246 dir_separator_str, "lib",
4247 dir_separator_str, ".")) == 0)))
4250 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4253 /* On fatal signals, delete all the temporary files. */
4256 fatal_error (signum)
4259 signal (signum, SIG_DFL);
4260 delete_failure_queue ();
4261 delete_temp_files ();
4262 /* Get the same signal again, this time not handled,
4263 so its normal effect occurs. */
4264 kill (getpid (), signum);
4275 int linker_was_run = 0;
4276 char *explicit_link_files;
4280 p = argv[0] + strlen (argv[0]);
4281 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4284 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4285 signal (SIGINT, fatal_error);
4287 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4288 signal (SIGHUP, fatal_error);
4290 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4291 signal (SIGTERM, fatal_error);
4293 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4294 signal (SIGPIPE, fatal_error);
4298 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4300 obstack_init (&obstack);
4302 /* Set up to remember the pathname of gcc and any options
4303 needed for collect. We use argv[0] instead of programname because
4304 we need the complete pathname. */
4305 obstack_init (&collect_obstack);
4306 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4307 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4308 putenv (obstack_finish (&collect_obstack));
4310 #ifdef INIT_ENVIRONMENT
4311 /* Set up any other necessary machine specific environment variables. */
4312 putenv (INIT_ENVIRONMENT);
4315 /* Choose directory for temp files. */
4317 choose_temp_base ();
4319 /* Make a table of what switches there are (switches, n_switches).
4320 Make a table of specified input files (infiles, n_infiles).
4321 Decode switches that are handled locally. */
4323 process_command (argc, argv);
4325 /* Initialize the vector of specs to just the default.
4326 This means one element containing 0s, as a terminator. */
4328 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4329 bcopy ((char *) default_compilers, (char *) compilers,
4330 sizeof default_compilers);
4331 n_compilers = n_default_compilers;
4333 /* Read specs from a file if there is one. */
4335 machine_suffix = concat4 (spec_machine, dir_separator_str,
4336 spec_version, dir_separator_str);
4337 just_machine_suffix = concat (spec_machine, dir_separator_str);
4339 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4340 /* Read the specs file unless it is a default one. */
4341 if (specs_file != 0 && strcmp (specs_file, "specs"))
4342 read_specs (specs_file);
4348 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4349 set_spec (extra_specs[k].name, extra_specs[k].spec);
4353 /* If not cross-compiling, look for startfiles in the standard places. */
4354 /* The fact that these are done here, after reading the specs file,
4355 means that it cannot be found in these directories.
4356 But that's okay. It should never be there anyway. */
4359 #ifdef MD_EXEC_PREFIX
4360 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4361 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4364 #ifdef MD_STARTFILE_PREFIX
4365 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4368 #ifdef MD_STARTFILE_PREFIX_1
4369 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4372 /* If standard_startfile_prefix is relative, base it on
4373 standard_exec_prefix. This lets us move the installed tree
4374 as a unit. If GCC_EXEC_PREFIX is defined, base
4375 standard_startfile_prefix on that as well. */
4376 if (*standard_startfile_prefix == '/'
4377 || *standard_startfile_prefix == DIR_SEPARATOR)
4378 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4382 if (gcc_exec_prefix)
4383 add_prefix (&startfile_prefixes,
4384 concat3 (gcc_exec_prefix, machine_suffix,
4385 standard_startfile_prefix),
4387 add_prefix (&startfile_prefixes,
4388 concat3 (standard_exec_prefix,
4390 standard_startfile_prefix),
4394 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4396 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4398 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4399 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4404 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4405 add_prefix (&startfile_prefixes,
4406 concat3 (gcc_exec_prefix, machine_suffix,
4407 standard_startfile_prefix),
4411 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4412 if (gcc_exec_prefix)
4414 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4415 + strlen (spec_version)
4416 + strlen (spec_machine) + 3);
4417 strcpy (temp, gcc_exec_prefix);
4418 strcat (temp, spec_machine);
4419 strcat (temp, dir_separator_str);
4420 strcat (temp, spec_version);
4421 strcat (temp, dir_separator_str);
4422 gcc_exec_prefix = temp;
4425 /* Now we have the specs.
4426 Set the `valid' bits for switches that match anything in any spec. */
4428 validate_all_switches ();
4430 /* Now that we have the switches and the specs, set
4431 the subdirectory based on the options. */
4432 set_multilib_dir ();
4434 /* Warn about any switches that no pass was interested in. */
4436 for (i = 0; i < n_switches; i++)
4437 if (! switches[i].valid)
4438 error ("unrecognized option `-%s'", switches[i].part1);
4440 /* Obey some of the options. */
4442 if (print_search_dirs)
4444 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4445 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4446 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4450 if (print_file_name)
4452 printf ("%s\n", find_file (print_file_name));
4456 if (print_prog_name)
4458 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4459 printf ("%s\n", (newname ? newname : print_prog_name));
4463 if (print_multi_lib)
4465 print_multilib_info ();
4469 if (print_multi_directory)
4471 if (multilib_dir == NULL)
4474 printf ("%s\n", multilib_dir);
4480 if (! strcmp (version_string, compiler_version))
4481 fprintf (stderr, "gcc version %s\n", version_string);
4483 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4484 version_string, compiler_version);
4491 fatal ("No input files");
4493 /* Make a place to record the compiler output file names
4494 that correspond to the input files. */
4496 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4497 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4499 /* Record which files were specified explicitly as link input. */
4501 explicit_link_files = xmalloc (n_infiles);
4502 bzero (explicit_link_files, n_infiles);
4504 for (i = 0; i < n_infiles; i++)
4506 register struct compiler *cp = 0;
4507 int this_file_error = 0;
4509 /* Tell do_spec what to substitute for %i. */
4511 input_filename = infiles[i].name;
4512 input_filename_length = strlen (input_filename);
4513 input_file_number = i;
4515 /* Use the same thing in %o, unless cp->spec says otherwise. */
4517 outfiles[i] = input_filename;
4519 /* Figure out which compiler from the file's suffix. */
4521 cp = lookup_compiler (infiles[i].name, input_filename_length,
4522 infiles[i].language);
4526 /* Ok, we found an applicable compiler. Run its spec. */
4527 /* First say how much of input_filename to substitute for %b */
4531 input_basename = input_filename;
4532 for (p = input_filename; *p; p++)
4533 if (*p == '/' || *p == DIR_SEPARATOR)
4534 input_basename = p + 1;
4536 /* Find a suffix starting with the last period,
4537 and set basename_length to exclude that suffix. */
4538 basename_length = strlen (input_basename);
4539 p = input_basename + basename_length;
4540 while (p != input_basename && *p != '.') --p;
4541 if (*p == '.' && p != input_basename)
4543 basename_length = p - input_basename;
4544 input_suffix = p + 1;
4550 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4552 len += strlen (cp->spec[j]);
4554 p = (char *) xmalloc (len + 1);
4557 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4560 strcpy (p + len, cp->spec[j]);
4561 len += strlen (cp->spec[j]);
4564 value = do_spec (p);
4567 this_file_error = 1;
4570 /* If this file's name does not contain a recognized suffix,
4571 record it as explicit linker input. */
4574 explicit_link_files[i] = 1;
4576 /* Clear the delete-on-failure queue, deleting the files in it
4577 if this compilation failed. */
4579 if (this_file_error)
4581 delete_failure_queue ();
4584 /* If this compilation succeeded, don't delete those files later. */
4585 clear_failure_queue ();
4588 /* Run ld to link all the compiler output files. */
4590 if (error_count == 0)
4592 int tmp = execution_count;
4596 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4598 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4599 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4601 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4603 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4604 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4607 for (i = 0; i < n_switches; i++)
4611 obstack_grow (&collect_obstack, " ", 1);
4614 obstack_grow (&collect_obstack, "-", 1);
4615 obstack_grow (&collect_obstack, switches[i].part1,
4616 strlen (switches[i].part1));
4618 for (args = switches[i].args; args && *args; args++)
4620 obstack_grow (&collect_obstack, " ", 1);
4621 obstack_grow (&collect_obstack, *args, strlen (*args));
4624 obstack_grow (&collect_obstack, "\0", 1);
4625 putenv (obstack_finish (&collect_obstack));
4627 value = do_spec (link_command_spec);
4630 linker_was_run = (tmp != execution_count);
4633 /* Warn if a -B option was specified but the prefix was never used. */
4634 unused_prefix_warnings (&exec_prefixes);
4635 unused_prefix_warnings (&startfile_prefixes);
4637 /* If options said don't run linker,
4638 complain about input files to be given to the linker. */
4640 if (! linker_was_run && error_count == 0)
4641 for (i = 0; i < n_infiles; i++)
4642 if (explicit_link_files[i])
4643 error ("%s: linker input file unused since linking not done",
4646 /* Delete some or all of the temporary files we made. */
4649 delete_failure_queue ();
4650 delete_temp_files ();
4652 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4657 /* Find the proper compilation spec for the file name NAME,
4658 whose length is LENGTH. LANGUAGE is the specified language,
4659 or 0 if none specified. */
4661 static struct compiler *
4662 lookup_compiler (name, length, language)
4667 struct compiler *cp;
4669 /* Look for the language, if one is spec'd. */
4672 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4676 if (cp->suffix[0] == '@'
4677 && !strcmp (cp->suffix + 1, language))
4681 error ("language %s not recognized", language);
4684 /* Look for a suffix. */
4685 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4687 if (/* The suffix `-' matches only the file name `-'. */
4688 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4690 (strlen (cp->suffix) < length
4691 /* See if the suffix matches the end of NAME. */
4693 && (!strcmp (cp->suffix,
4694 name + length - strlen (cp->suffix))
4695 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4696 && !strcasecmp (cp->suffix,
4697 name + length - strlen (cp->suffix)))))
4699 && !strcmp (cp->suffix,
4700 name + length - strlen (cp->suffix))))
4703 if (cp->spec[0][0] == '@')
4705 struct compiler *new;
4706 /* An alias entry maps a suffix to a language.
4707 Search for the language; pass 0 for NAME and LENGTH
4708 to avoid infinite recursion if language not found.
4709 Construct the new compiler spec. */
4710 language = cp->spec[0] + 1;
4711 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4712 new->suffix = cp->suffix;
4713 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4714 (char *) new->spec, sizeof new->spec);
4717 /* A non-alias entry: return it. */
4729 register char *value = (char *) malloc (size);
4731 fatal ("virtual memory exhausted");
4736 xrealloc (ptr, size)
4740 register char *value = (char *) realloc (ptr, size);
4742 fatal ("virtual memory exhausted");
4746 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4752 int len1 = strlen (s1);
4753 int len2 = strlen (s2);
4754 char *result = xmalloc (len1 + len2 + 1);
4756 strcpy (result, s1);
4757 strcpy (result + len1, s2);
4758 *(result + len1 + len2) = 0;
4764 concat3 (s1, s2, s3)
4767 return concat (concat (s1, s2), s3);
4771 concat4 (s1, s2, s3, s4)
4772 char *s1, *s2, *s3, *s4;
4774 return concat (concat (s1, s2), concat (s3, s4));
4778 concat6 (s1, s2, s3, s4, s5, s6)
4779 char *s1, *s2, *s3, *s4, *s5, *s6;
4781 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4785 save_string (s, len)
4789 register char *result = xmalloc (len + 1);
4791 bcopy (s, result, len);
4797 pfatal_with_name (name)
4800 fatal ("%s: %s", name, my_strerror (errno));
4804 perror_with_name (name)
4807 error ("%s: %s", name, my_strerror (errno));
4814 error ("installation problem, cannot exec `%s': %s",
4815 name, my_strerror (errno));
4818 /* More 'friendly' abort that prints the line and file.
4819 config.h can #define abort fancy_abort if you like that sort of thing. */
4824 fatal ("Internal gcc abort.");
4829 /* Output an error message and exit */
4832 fatal VPROTO((char *format, ...))
4839 VA_START (ap, format);
4842 format = va_arg (ap, char*);
4845 fprintf (stderr, "%s: ", programname);
4846 vfprintf (stderr, format, ap);
4848 fprintf (stderr, "\n");
4849 delete_temp_files ();
4854 error VPROTO((char *format, ...))
4861 VA_START (ap, format);
4864 format = va_arg (ap, char*);
4867 fprintf (stderr, "%s: ", programname);
4868 vfprintf (stderr, format, ap);
4871 fprintf (stderr, "\n");
4874 #else /* not HAVE_VPRINTF */
4877 fatal (msg, arg1, arg2)
4878 char *msg, *arg1, *arg2;
4880 error (msg, arg1, arg2);
4881 delete_temp_files ();
4886 error (msg, arg1, arg2)
4887 char *msg, *arg1, *arg2;
4889 fprintf (stderr, "%s: ", programname);
4890 fprintf (stderr, msg, arg1, arg2);
4891 fprintf (stderr, "\n");
4894 #endif /* not HAVE_VPRINTF */
4898 validate_all_switches ()
4900 struct compiler *comp;
4903 struct spec_list *spec;
4905 for (comp = compilers; comp->spec[0]; comp++)
4908 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4912 if (c == '%' && *p == '{')
4913 /* We have a switch spec. */
4914 validate_switches (p + 1);
4918 /* look through the linked list of extra specs read from the specs file */
4919 for (spec = specs; spec ; spec = spec->next)
4923 if (c == '%' && *p == '{')
4924 /* We have a switch spec. */
4925 validate_switches (p + 1);
4928 p = link_command_spec;
4930 if (c == '%' && *p == '{')
4931 /* We have a switch spec. */
4932 validate_switches (p + 1);
4934 /* Now notice switches mentioned in the machine-specific specs. */
4938 if (c == '%' && *p == '{')
4939 /* We have a switch spec. */
4940 validate_switches (p + 1);
4944 if (c == '%' && *p == '{')
4945 /* We have a switch spec. */
4946 validate_switches (p + 1);
4950 if (c == '%' && *p == '{')
4951 /* We have a switch spec. */
4952 validate_switches (p + 1);
4954 p = signed_char_spec;
4956 if (c == '%' && *p == '{')
4957 /* We have a switch spec. */
4958 validate_switches (p + 1);
4962 if (c == '%' && *p == '{')
4963 /* We have a switch spec. */
4964 validate_switches (p + 1);
4968 if (c == '%' && *p == '{')
4969 /* We have a switch spec. */
4970 validate_switches (p + 1);
4974 if (c == '%' && *p == '{')
4975 /* We have a switch spec. */
4976 validate_switches (p + 1);
4980 if (c == '%' && *p == '{')
4981 /* We have a switch spec. */
4982 validate_switches (p + 1);
4986 if (c == '%' && *p == '{')
4987 /* We have a switch spec. */
4988 validate_switches (p + 1);
4992 if (c == '%' && *p == '{')
4993 /* We have a switch spec. */
4994 validate_switches (p + 1);
4999 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
5001 p = extra_specs[i].spec;
5003 if (c == '%' && *p == '{')
5004 /* We have a switch spec. */
5005 validate_switches (p + 1);
5012 /* Look at the switch-name that comes after START
5013 and mark as valid all supplied switches that match it. */
5016 validate_switches (start)
5019 register char *p = start;
5034 while (*p != ':' && *p != '}') p++;
5038 else if (p[-1] == '*')
5040 /* Mark all matching switches as valid. */
5042 for (i = 0; i < n_switches; i++)
5043 if (!strncmp (switches[i].part1, filter, p - filter))
5044 switches[i].valid = 1;
5048 /* Mark an exact matching switch as valid. */
5049 for (i = 0; i < n_switches; i++)
5051 if (!strncmp (switches[i].part1, filter, p - filter)
5052 && switches[i].part1[p - filter] == 0)
5053 switches[i].valid = 1;
5058 /* Check whether a particular argument was used. */
5067 for (i = 0; i < n_switches; i++)
5068 if (! strncmp (switches[i].part1, p, len)
5069 && strlen (switches[i].part1) == len)
5074 /* Check whether a particular argument is a default argument. */
5076 #ifndef MULTILIB_DEFAULTS
5077 #define MULTILIB_DEFAULTS { NULL }
5080 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
5083 default_arg (p, len)
5087 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
5090 for (i = 0; i < count; i++)
5091 if (multilib_defaults[i] != NULL
5092 && strncmp (multilib_defaults[i], p, len) == 0
5093 && multilib_defaults[i][len] == '\0')
5099 /* Work out the subdirectory to use based on the
5100 options. The format of multilib_select is a list of elements.
5101 Each element is a subdirectory name followed by a list of options
5102 followed by a semicolon. gcc will consider each line in turn. If
5103 none of the options beginning with an exclamation point are
5104 present, and all of the other options are present, that
5105 subdirectory will be used. */
5110 char *p = multilib_select;
5112 char *this_path, *this_arg;
5118 /* Ignore newlines. */
5125 /* Get the initial path. */
5133 this_path_len = p - this_path;
5135 /* Check the arguments. */
5150 while (*p != ' ' && *p != ';')
5157 if (*this_arg != '!')
5165 /* If this is a default argument, we can just ignore it.
5166 This is true even if this_arg begins with '!'. Beginning
5167 with '!' does not mean that this argument is necessarily
5168 inappropriate for this library: it merely means that
5169 there is a more specific library which uses this
5170 argument. If this argument is a default, we need not
5171 consider that more specific library. */
5172 if (! default_arg (this_arg, p - this_arg))
5174 ok = used_arg (this_arg, p - this_arg);
5185 if (this_path_len != 1
5186 || this_path[0] != '.')
5188 multilib_dir = xmalloc (this_path_len + 1);
5189 strncpy (multilib_dir, this_path, this_path_len);
5190 multilib_dir[this_path_len] = '\0';
5199 /* Print out the multiple library subdirectory selection
5200 information. This prints out a series of lines. Each line looks
5201 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5202 required. Only the desired options are printed out, the negative
5203 matches. The options are print without a leading dash. There are
5204 no spaces to make it easy to use the information in the shell.
5205 Each subdirectory is printed only once. This assumes the ordering
5206 generated by the genmultilib script. */
5209 print_multilib_info ()
5211 char *p = multilib_select;
5212 char *last_path = 0, *this_path;
5214 int last_path_len = 0;
5218 /* Ignore newlines. */
5225 /* Get the initial path. */
5234 /* If this is a duplicate, skip it. */
5235 skip = (last_path != 0 && p - this_path == last_path_len
5236 && ! strncmp (last_path, this_path, last_path_len));
5238 last_path = this_path;
5239 last_path_len = p - this_path;
5241 /* If this directory requires any default arguments, we can skip
5242 it. We will already have printed a directory identical to
5243 this one which does not require that default argument. */
5261 while (*q != ' ' && *q != ';')
5269 && default_arg (arg, q - arg))
5284 for (p1 = last_path; p1 < p; p1++)
5303 use_arg = *p != '!';
5308 while (*p != ' ' && *p != ';')