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;
549 /* This defines which switch letters take arguments. */
551 #ifndef SWITCH_TAKES_ARG
552 #define SWITCH_TAKES_ARG(CHAR) \
553 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
554 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
555 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
556 || (CHAR) == 'L' || (CHAR) == 'A')
559 /* This defines which multi-letter switches take arguments. */
561 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
562 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
563 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
564 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
565 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
566 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
567 || !strcmp (STR, "isystem"))
569 #ifndef WORD_SWITCH_TAKES_ARG
570 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
573 /* Record the mapping from file suffixes for compilation specs. */
577 char *suffix; /* Use this compiler for input files
578 whose names end in this suffix. */
580 char *spec[4]; /* To use this compiler, concatenate these
581 specs and pass to do_spec. */
584 /* Pointer to a vector of `struct compiler' that gives the spec for
585 compiling a file, based on its suffix.
586 A file that does not end in any of these suffixes will be passed
587 unchanged to the loader and nothing else will be done to it.
589 An entry containing two 0s is used to terminate the vector.
591 If multiple entries match a file, the last matching one is used. */
593 static struct compiler *compilers;
595 /* Number of entries in `compilers', not counting the null terminator. */
597 static int n_compilers;
599 /* The default list of file name suffixes and their compilation specs. */
601 static struct compiler default_compilers[] =
605 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
606 %{C:%{!E:%eGNU C does not support -C without using -E}}\
607 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
608 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
609 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
610 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
611 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
612 %{traditional-cpp:-traditional}\
613 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
614 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
615 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
616 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
617 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
618 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
620 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
621 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
623 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
624 %{!pipe:%g.s} %A\n }}}}"},
626 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
627 %{C:%{!E:%eGNU C does not support -C without using -E}}\
628 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
629 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
630 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
631 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
632 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
633 %{traditional-cpp:-traditional}\
634 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
636 %{!E:%e-E required when input is from standard input}"},
637 {".m", "@objective-c"},
639 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
640 %{C:%{!E:%eGNU C does not support -C without using -E}}\
641 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
642 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
643 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
644 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
645 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
646 %{traditional-cpp:-traditional}\
647 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
648 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
649 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
650 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
651 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
652 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
653 -lang-objc %{gen-decls} \
655 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
656 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
658 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
659 %{!pipe:%g.s} %A\n }}}}"},
662 "%{!E:%eCompilation of header file requested} \
663 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
664 %{C:%{!E:%eGNU C does not support -C without using -E}}\
665 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
666 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
667 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
668 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
669 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
670 %{traditional-cpp:-traditional}\
671 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
673 {".i", "@cpp-output"},
675 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
676 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
677 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
679 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
680 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
682 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
683 %{!pipe:%g.s} %A\n }}}}"},
684 {".s", "@assembler"},
686 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
687 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
689 {".S", "@assembler-with-cpp"},
690 {"@assembler-with-cpp",
691 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
692 %{C:%{!E:%eGNU C does not support -C without using -E}}\
693 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
694 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
695 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
696 %{traditional-cpp:-traditional}\
697 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
698 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
699 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
700 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
701 %{!pipe:%g.s} %A\n }}}}"},
703 /* Mark end of table */
707 /* Number of elements in default_compilers, not counting the terminator. */
709 static int n_default_compilers
710 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
712 /* Here is the spec for running the linker, after compiling all files. */
714 /* -u* was put back because both BSD and SysV seem to support it. */
715 /* %{static:} simply prevents an error message if the target machine
716 doesn't handle -static. */
717 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
718 scripts which exist in user specified directories, or in standard
720 #ifdef LINK_LIBGCC_SPECIAL
721 /* Don't generate -L options. */
722 static char *link_command_spec = "\
724 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
725 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
726 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
727 %{static:} %{L*} %{T*} %o\
728 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
729 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
732 static char *link_command_spec = "\
734 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
735 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
736 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
737 %{static:} %{L*} %D %{T*} %o\
738 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
739 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
742 /* A vector of options to give to the linker.
743 These options are accumulated by %x,
744 and substituted into the linker command with %X. */
745 static int n_linker_options;
746 static char **linker_options;
748 /* A vector of options to give to the assembler.
749 These options are accumulated by -Wa,
750 and substituted into the assembler command with %Y. */
751 static int n_assembler_options;
752 static char **assembler_options;
754 /* A vector of options to give to the preprocessor.
755 These options are accumulated by -Wp,
756 and substituted into the preprocessor command with %Z. */
757 static int n_preprocessor_options;
758 static char **preprocessor_options;
760 /* Define how to map long options into short ones. */
762 /* This structure describes one mapping. */
765 /* The long option's name. */
767 /* The equivalent short option. */
769 /* Argument info. A string of flag chars; NULL equals no options.
770 a => argument required.
771 o => argument optional.
772 j => join argument to equivalent, making one word.
773 * => require other text after NAME as an argument. */
777 /* This is the table of mappings. Mappings are tried sequentially
778 for each option encountered; the first one that matches, wins. */
780 struct option_map option_map[] =
782 {"--all-warnings", "-Wall", 0},
783 {"--ansi", "-ansi", 0},
784 {"--assemble", "-S", 0},
785 {"--assert", "-A", "a"},
786 {"--comments", "-C", 0},
787 {"--compile", "-c", 0},
788 {"--debug", "-g", "oj"},
789 {"--define-macro", "-D", "a"},
790 {"--dependencies", "-M", 0},
791 {"--dump", "-d", "a"},
792 {"--dumpbase", "-dumpbase", "a"},
793 {"--entry", "-e", 0},
794 {"--extra-warnings", "-W", 0},
795 {"--for-assembler", "-Wa", "a"},
796 {"--for-linker", "-Xlinker", "a"},
797 {"--force-link", "-u", "a"},
798 {"--imacros", "-imacros", "a"},
799 {"--include", "-include", "a"},
800 {"--include-barrier", "-I-", 0},
801 {"--include-directory", "-I", "a"},
802 {"--include-directory-after", "-idirafter", "a"},
803 {"--include-prefix", "-iprefix", "a"},
804 {"--include-with-prefix", "-iwithprefix", "a"},
805 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
806 {"--include-with-prefix-after", "-iwithprefix", "a"},
807 {"--language", "-x", "a"},
808 {"--library-directory", "-L", "a"},
809 {"--machine", "-m", "aj"},
810 {"--machine-", "-m", "*j"},
811 {"--no-line-commands", "-P", 0},
812 {"--no-precompiled-includes", "-noprecomp", 0},
813 {"--no-standard-includes", "-nostdinc", 0},
814 {"--no-standard-libraries", "-nostdlib", 0},
815 {"--no-warnings", "-w", 0},
816 {"--optimize", "-O", "oj"},
817 {"--output", "-o", "a"},
818 {"--pedantic", "-pedantic", 0},
819 {"--pedantic-errors", "-pedantic-errors", 0},
820 {"--pipe", "-pipe", 0},
821 {"--prefix", "-B", "a"},
822 {"--preprocess", "-E", 0},
823 {"--print-search-dirs", "-print-search-dirs", 0},
824 {"--print-file-name", "-print-file-name=", "aj"},
825 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
826 {"--print-missing-file-dependencies", "-MG", 0},
827 {"--print-multi-lib", "-print-multi-lib", 0},
828 {"--print-multi-directory", "-print-multi-directory", 0},
829 {"--print-prog-name", "-print-prog-name=", "aj"},
830 {"--profile", "-p", 0},
831 {"--profile-blocks", "-a", 0},
832 {"--quiet", "-q", 0},
833 {"--save-temps", "-save-temps", 0},
834 {"--shared", "-shared", 0},
835 {"--silent", "-q", 0},
836 {"--static", "-static", 0},
837 {"--symbolic", "-symbolic", 0},
838 {"--target", "-b", "a"},
839 {"--trace-includes", "-H", 0},
840 {"--traditional", "-traditional", 0},
841 {"--traditional-cpp", "-traditional-cpp", 0},
842 {"--trigraphs", "-trigraphs", 0},
843 {"--undefine-macro", "-U", "a"},
844 {"--use-version", "-V", "a"},
845 {"--user-dependencies", "-MM", 0},
846 {"--verbose", "-v", 0},
847 {"--version", "-dumpversion", 0},
848 {"--warn-", "-W", "*j"},
849 {"--write-dependencies", "-MD", 0},
850 {"--write-user-dependencies", "-MMD", 0},
854 /* Translate the options described by *ARGCP and *ARGVP.
855 Make a new vector and store it back in *ARGVP,
856 and store its length in *ARGVC. */
859 translate_options (argcp, argvp)
865 char **argv = *argvp;
866 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
870 newv[newindex++] = argv[i++];
874 /* Translate -- options. */
875 if (argv[i][0] == '-' && argv[i][1] == '-')
877 /* Find a mapping that applies to this option. */
878 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
880 int optlen = strlen (option_map[j].name);
881 int arglen = strlen (argv[i]);
882 int complen = arglen > optlen ? optlen : arglen;
883 char *arginfo = option_map[j].arg_info;
888 if (!strncmp (argv[i], option_map[j].name, complen))
895 k < sizeof (option_map) / sizeof (option_map[0]);
897 if (strlen (option_map[k].name) >= arglen
898 && !strncmp (argv[i], option_map[k].name, arglen))
900 error ("Ambiguous abbreviation %s", argv[i]);
904 if (k != sizeof (option_map) / sizeof (option_map[0]))
910 /* If the option has an argument, accept that. */
911 if (argv[i][optlen] == '=')
912 arg = argv[i] + optlen + 1;
914 /* If this mapping requires extra text at end of name,
915 accept that as "argument". */
916 else if (index (arginfo, '*') != 0)
917 arg = argv[i] + optlen;
919 /* Otherwise, extra text at end means mismatch.
920 Try other mappings. */
925 else if (index (arginfo, '*') != 0)
927 error ("Incomplete `%s' option", option_map[j].name);
931 /* Handle arguments. */
932 if (index (arginfo, 'a') != 0)
938 error ("Missing argument to `%s' option",
946 else if (index (arginfo, '*') != 0)
948 else if (index (arginfo, 'o') == 0)
951 error ("Extraneous argument to `%s' option",
956 /* Store the translation as one argv elt or as two. */
957 if (arg != 0 && index (arginfo, 'j') != 0)
958 newv[newindex++] = concat (option_map[j].equivalent, arg);
961 newv[newindex++] = option_map[j].equivalent;
962 newv[newindex++] = arg;
965 newv[newindex++] = option_map[j].equivalent;
973 /* Handle old-fashioned options--just copy them through,
974 with their arguments. */
975 else if (argv[i][0] == '-')
977 char *p = argv[i] + 1;
981 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
982 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
983 else if (WORD_SWITCH_TAKES_ARG (p))
984 nskip += WORD_SWITCH_TAKES_ARG (p);
985 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
988 else if (! strcmp (p, "Xlinker"))
991 /* Watch out for an option at the end of the command line that
992 is missing arguments, and avoid skipping past the end of the
994 if (nskip + i > argc)
999 newv[newindex++] = argv[i++];
1004 /* Ordinary operands, or +e options. */
1005 newv[newindex++] = argv[i++];
1019 #ifdef HAVE_STRERROR
1024 static char buffer[30];
1026 return "cannot access";
1028 if (e > 0 && e < sys_nerr)
1029 return sys_errlist[e];
1031 sprintf (buffer, "Unknown error %d", e);
1036 /* Read compilation specs from a file named FILENAME,
1037 replacing the default ones.
1039 A suffix which starts with `*' is a definition for
1040 one of the machine-specific sub-specs. The "suffix" should be
1041 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1042 The corresponding spec is stored in asm_spec, etc.,
1043 rather than in the `compilers' vector.
1045 Anything invalid in the file is a fatal error. */
1048 read_specs (filename)
1053 struct stat statbuf;
1058 fprintf (stderr, "Reading specs from %s\n", filename);
1060 /* Open and stat the file. */
1061 desc = open (filename, O_RDONLY, 0);
1063 pfatal_with_name (filename);
1064 if (stat (filename, &statbuf) < 0)
1065 pfatal_with_name (filename);
1067 /* Read contents of file into BUFFER. */
1068 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1069 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1071 pfatal_with_name (filename);
1072 buffer[readlen] = 0;
1075 /* Scan BUFFER for specs, putting them in the vector. */
1081 char *in, *out, *p1, *p2;
1083 /* Advance P in BUFFER to the next nonblank nocomment line. */
1084 p = skip_whitespace (p);
1088 /* Find the colon that should end the suffix. */
1090 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1091 /* The colon shouldn't be missing. */
1093 fatal ("specs file malformed after %d characters", p1 - buffer);
1094 /* Skip back over trailing whitespace. */
1096 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1097 /* Copy the suffix to a string. */
1098 suffix = save_string (p, p2 - p);
1099 /* Find the next line. */
1100 p = skip_whitespace (p1 + 1);
1102 fatal ("specs file malformed after %d characters", p - buffer);
1104 /* Find next blank line. */
1105 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1106 /* Specs end at the blank line and do not include the newline. */
1107 spec = save_string (p, p1 - p);
1110 /* Delete backslash-newline sequences from the spec. */
1115 if (in[0] == '\\' && in[1] == '\n')
1117 else if (in[0] == '#')
1119 while (*in && *in != '\n') in++;
1126 if (suffix[0] == '*')
1128 if (! strcmp (suffix, "*link_command"))
1129 link_command_spec = spec;
1131 set_spec (suffix + 1, spec);
1135 /* Add this pair to the vector. */
1137 = ((struct compiler *)
1138 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1139 compilers[n_compilers].suffix = suffix;
1140 bzero ((char *) compilers[n_compilers].spec,
1141 sizeof compilers[n_compilers].spec);
1142 compilers[n_compilers].spec[0] = spec;
1144 bzero ((char *) &compilers[n_compilers],
1145 sizeof compilers[n_compilers]);
1149 link_command_spec = spec;
1152 if (link_command_spec == 0)
1153 fatal ("spec file has no spec for linking");
1162 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1163 be considered whitespace. */
1164 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1166 else if (*p == '\n' || *p == ' ' || *p == '\t')
1170 while (*p != '\n') p++;
1180 /* Structure to keep track of the specs that have been defined so far. These
1181 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1185 char *name; /* Name of the spec. */
1186 char *spec; /* The spec itself. */
1187 struct spec_list *next; /* Next spec in linked list. */
1190 /* List of specs that have been defined so far. */
1192 static struct spec_list *specs = (struct spec_list *) 0;
1194 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1195 removed; If the spec starts with a + then SPEC is added to the end of the
1199 set_spec (name, spec)
1203 struct spec_list *sl;
1206 /* See if the spec already exists */
1207 for (sl = specs; sl; sl = sl->next)
1208 if (strcmp (sl->name, name) == 0)
1213 /* Not found - make it */
1214 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1215 sl->name = save_string (name, strlen (name));
1216 sl->spec = save_string ("", 0);
1221 old_spec = sl->spec;
1222 if (name && spec[0] == '+' && isspace (spec[1]))
1223 sl->spec = concat (old_spec, spec + 1);
1225 sl->spec = save_string (spec, strlen (spec));
1227 if (! strcmp (name, "asm"))
1228 asm_spec = sl->spec;
1229 else if (! strcmp (name, "asm_final"))
1230 asm_final_spec = sl->spec;
1231 else if (! strcmp (name, "cc1"))
1232 cc1_spec = sl->spec;
1233 else if (! strcmp (name, "cc1plus"))
1234 cc1plus_spec = sl->spec;
1235 else if (! strcmp (name, "cpp"))
1236 cpp_spec = sl->spec;
1237 else if (! strcmp (name, "endfile"))
1238 endfile_spec = sl->spec;
1239 else if (! strcmp (name, "lib"))
1240 lib_spec = sl->spec;
1241 else if (! strcmp (name, "libgcc"))
1242 libgcc_spec = sl->spec;
1243 else if (! strcmp (name, "link"))
1244 link_spec = sl->spec;
1245 else if (! strcmp (name, "predefines"))
1246 cpp_predefines = sl->spec;
1247 else if (! strcmp (name, "signed_char"))
1248 signed_char_spec = sl->spec;
1249 else if (! strcmp (name, "startfile"))
1250 startfile_spec = sl->spec;
1251 else if (! strcmp (name, "switches_need_spaces"))
1252 switches_need_spaces = sl->spec;
1253 else if (! strcmp (name, "cross_compile"))
1254 cross_compile = atoi (sl->spec);
1255 else if (! strcmp (name, "multilib"))
1256 multilib_select = sl->spec;
1257 /* Free the old spec */
1262 /* Accumulate a command (program name and args), and run it. */
1264 /* Vector of pointers to arguments in the current line of specifications. */
1266 static char **argbuf;
1268 /* Number of elements allocated in argbuf. */
1270 static int argbuf_length;
1272 /* Number of elements in argbuf currently in use (containing args). */
1274 static int argbuf_index;
1276 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1277 temp file. Used only if MKTEMP_EACH_FILE. */
1279 static struct temp_name {
1280 char *suffix; /* suffix associated with the code. */
1281 int length; /* strlen (suffix). */
1282 int unique; /* Indicates whether %g or %u/%U was used. */
1283 char *filename; /* associated filename. */
1284 int filename_length; /* strlen (filename). */
1285 struct temp_name *next;
1288 /* Number of commands executed so far. */
1290 static int execution_count;
1292 /* Number of commands that exited with a signal. */
1294 static int signal_count;
1296 /* Name with which this program was invoked. */
1298 static char *programname;
1300 /* Structures to keep track of prefixes to try when looking for files. */
1304 char *prefix; /* String to prepend to the path. */
1305 struct prefix_list *next; /* Next in linked list. */
1306 int require_machine_suffix; /* Don't use without machine_suffix. */
1307 /* 2 means try both machine_suffix and just_machine_suffix. */
1308 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1313 struct prefix_list *plist; /* List of prefixes to try */
1314 int max_len; /* Max length of a prefix in PLIST */
1315 char *name; /* Name of this list (used in config stuff) */
1318 /* List of prefixes to try when looking for executables. */
1320 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1322 /* List of prefixes to try when looking for startup (crt0) files. */
1324 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1326 /* List of prefixes to try when looking for include files. */
1328 static struct path_prefix include_prefixes = { 0, 0, "include" };
1330 /* Suffix to attach to directories searched for commands.
1331 This looks like `MACHINE/VERSION/'. */
1333 static char *machine_suffix = 0;
1335 /* Suffix to attach to directories searched for commands.
1336 This is just `MACHINE/'. */
1338 static char *just_machine_suffix = 0;
1340 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1342 static char *gcc_exec_prefix;
1344 /* Default prefixes to attach to command names. */
1346 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1347 #undef MD_EXEC_PREFIX
1348 #undef MD_STARTFILE_PREFIX
1349 #undef MD_STARTFILE_PREFIX_1
1352 #ifndef STANDARD_EXEC_PREFIX
1353 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1354 #endif /* !defined STANDARD_EXEC_PREFIX */
1356 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1357 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1358 #ifdef MD_EXEC_PREFIX
1359 static char *md_exec_prefix = MD_EXEC_PREFIX;
1362 #ifndef STANDARD_STARTFILE_PREFIX
1363 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1364 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1366 #ifdef MD_STARTFILE_PREFIX
1367 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1369 #ifdef MD_STARTFILE_PREFIX_1
1370 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1372 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1373 static char *standard_startfile_prefix_1 = "/lib/";
1374 static char *standard_startfile_prefix_2 = "/usr/lib/";
1376 #ifndef TOOLDIR_BASE_PREFIX
1377 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1379 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1380 static char *tooldir_prefix;
1382 /* Subdirectory to use for locating libraries. Set by
1383 set_multilib_dir based on the compilation options. */
1385 static char *multilib_dir;
1387 /* Clear out the vector of arguments (after a command is executed). */
1395 /* Add one argument to the vector at the end.
1396 This is done when a space is seen or at the end of the line.
1397 If DELETE_ALWAYS is nonzero, the arg is a filename
1398 and the file should be deleted eventually.
1399 If DELETE_FAILURE is nonzero, the arg is a filename
1400 and the file should be deleted if this compilation fails. */
1403 store_arg (arg, delete_always, delete_failure)
1405 int delete_always, delete_failure;
1407 if (argbuf_index + 1 == argbuf_length)
1409 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1412 argbuf[argbuf_index++] = arg;
1413 argbuf[argbuf_index] = 0;
1415 if (delete_always || delete_failure)
1416 record_temp_file (arg, delete_always, delete_failure);
1419 /* Record the names of temporary files we tell compilers to write,
1420 and delete them at the end of the run. */
1422 /* This is the common prefix we use to make temp file names.
1423 It is chosen once for each run of this program.
1424 It is substituted into a spec by %g.
1425 Thus, all temp file names contain this prefix.
1426 In practice, all temp file names start with this prefix.
1428 This prefix comes from the envvar TMPDIR if it is defined;
1429 otherwise, from the P_tmpdir macro if that is defined;
1430 otherwise, in /usr/tmp or /tmp. */
1432 static char *temp_filename;
1434 /* Length of the prefix. */
1436 static int temp_filename_length;
1438 /* Define the list of temporary files to delete. */
1443 struct temp_file *next;
1446 /* Queue of files to delete on success or failure of compilation. */
1447 static struct temp_file *always_delete_queue;
1448 /* Queue of files to delete on failure of compilation. */
1449 static struct temp_file *failure_delete_queue;
1451 /* Record FILENAME as a file to be deleted automatically.
1452 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1453 otherwise delete it in any case.
1454 FAIL_DELETE nonzero means delete it if a compilation step fails;
1455 otherwise delete it in any case. */
1458 record_temp_file (filename, always_delete, fail_delete)
1463 register char *name;
1464 name = xmalloc (strlen (filename) + 1);
1465 strcpy (name, filename);
1469 register struct temp_file *temp;
1470 for (temp = always_delete_queue; temp; temp = temp->next)
1471 if (! strcmp (name, temp->name))
1473 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1474 temp->next = always_delete_queue;
1476 always_delete_queue = temp;
1482 register struct temp_file *temp;
1483 for (temp = failure_delete_queue; temp; temp = temp->next)
1484 if (! strcmp (name, temp->name))
1486 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1487 temp->next = failure_delete_queue;
1489 failure_delete_queue = temp;
1494 /* Delete all the temporary files whose names we previously recorded. */
1497 delete_if_ordinary (name)
1504 printf ("Delete %s? (y or n) ", name);
1508 while ((c = getchar ()) != '\n' && c != EOF) ;
1509 if (i == 'y' || i == 'Y')
1511 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1512 if (unlink (name) < 0)
1514 perror_with_name (name);
1518 delete_temp_files ()
1520 register struct temp_file *temp;
1522 for (temp = always_delete_queue; temp; temp = temp->next)
1523 delete_if_ordinary (temp->name);
1524 always_delete_queue = 0;
1527 /* Delete all the files to be deleted on error. */
1530 delete_failure_queue ()
1532 register struct temp_file *temp;
1534 for (temp = failure_delete_queue; temp; temp = temp->next)
1535 delete_if_ordinary (temp->name);
1539 clear_failure_queue ()
1541 failure_delete_queue = 0;
1544 /* Compute a string to use as the base of all temporary file names.
1545 It is substituted for %g. */
1548 choose_temp_base_try (try, base)
1555 else if (try == (char *)0)
1557 else if (access (try, R_OK | W_OK) != 0)
1570 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1571 base = choose_temp_base_try (getenv ("TMP"), base);
1572 base = choose_temp_base_try (getenv ("TEMP"), base);
1575 base = choose_temp_base_try (P_tmpdir, base);
1578 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1579 dir_separator_str, "tmp"),
1581 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1583 /* If all else fails, use the current directory! */
1584 if (base == (char *)0) base = concat(".", dir_separator_str);
1586 len = strlen (base);
1587 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1589 strcpy (temp_filename, base);
1590 if (len > 0 && temp_filename[len-1] != '/'
1591 && temp_filename[len-1] != DIR_SEPARATOR)
1592 temp_filename[len++] = DIR_SEPARATOR;
1593 strcpy (temp_filename + len, "ccXXXXXX");
1595 mktemp (temp_filename);
1596 temp_filename_length = strlen (temp_filename);
1597 if (temp_filename_length == 0)
1602 /* Routine to add variables to the environment. We do this to pass
1603 the pathname of the gcc driver, and the directories search to the
1604 collect2 program, which is being run as ld. This way, we can be
1605 sure of executing the right compiler when collect2 wants to build
1606 constructors and destructors. Since the environment variables we
1607 use come from an obstack, we don't have to worry about allocating
1616 #ifndef VMS /* nor about VMS */
1618 extern char **environ;
1619 char **old_environ = environ;
1623 int str_len = strlen (str);
1627 while ((ch = *p++) != '\0' && ch != '=')
1633 /* Search for replacing an existing environment variable, and
1634 count the number of total environment variables. */
1635 for (envp = old_environ; *envp; envp++)
1638 if (!strncmp (str, *envp, name_len))
1645 /* Add a new environment variable */
1646 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1648 bcopy ((char *) old_environ, (char *) (environ + 1),
1649 sizeof (char *) * (num_envs+1));
1654 #endif /* HAVE_PUTENV */
1657 /* Build a list of search directories from PATHS.
1658 PREFIX is a string to prepend to the list.
1659 If CHECK_DIR_P is non-zero we ensure the directory exists.
1660 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1661 It is also used by the --print-search-dirs flag. */
1664 build_search_list (paths, prefix, check_dir_p)
1665 struct path_prefix *paths;
1669 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1671 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1672 int first_time = TRUE;
1673 struct prefix_list *pprefix;
1675 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1677 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1679 int len = strlen (pprefix->prefix);
1683 || is_directory (pprefix->prefix, machine_suffix, 0)))
1686 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1689 obstack_grow (&collect_obstack, pprefix->prefix, len);
1690 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1693 if (just_machine_suffix
1694 && pprefix->require_machine_suffix == 2
1696 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1699 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1702 obstack_grow (&collect_obstack, pprefix->prefix, len);
1703 obstack_grow (&collect_obstack, just_machine_suffix,
1707 if (!pprefix->require_machine_suffix)
1710 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1713 obstack_grow (&collect_obstack, pprefix->prefix, len);
1716 obstack_1grow (&collect_obstack, '\0');
1717 return obstack_finish (&collect_obstack);
1720 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1723 putenv_from_prefixes (paths, env_var)
1724 struct path_prefix *paths;
1727 putenv (build_search_list (paths, env_var, 1));
1730 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1731 access to check permissions.
1732 Return 0 if not found, otherwise return its name, allocated with malloc. */
1735 find_a_file (pprefix, name, mode)
1736 struct path_prefix *pprefix;
1741 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1742 struct prefix_list *pl;
1743 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1746 len += strlen (machine_suffix);
1748 temp = xmalloc (len);
1750 /* Determine the filename to execute (special case for absolute paths). */
1752 if (*name == '/' || *name == DIR_SEPARATOR)
1754 if (access (name, mode))
1756 strcpy (temp, name);
1761 for (pl = pprefix->plist; pl; pl = pl->next)
1765 /* Some systems have a suffix for executable files.
1766 So try appending that first. */
1767 if (file_suffix[0] != 0)
1769 strcpy (temp, pl->prefix);
1770 strcat (temp, machine_suffix);
1771 strcat (temp, name);
1772 strcat (temp, file_suffix);
1773 if (access (temp, mode) == 0)
1775 if (pl->used_flag_ptr != 0)
1776 *pl->used_flag_ptr = 1;
1781 /* Now try just the name. */
1782 strcpy (temp, pl->prefix);
1783 strcat (temp, machine_suffix);
1784 strcat (temp, name);
1785 if (access (temp, mode) == 0)
1787 if (pl->used_flag_ptr != 0)
1788 *pl->used_flag_ptr = 1;
1793 /* Certain prefixes are tried with just the machine type,
1794 not the version. This is used for finding as, ld, etc. */
1795 if (just_machine_suffix && pl->require_machine_suffix == 2)
1797 /* Some systems have a suffix for executable files.
1798 So try appending that first. */
1799 if (file_suffix[0] != 0)
1801 strcpy (temp, pl->prefix);
1802 strcat (temp, just_machine_suffix);
1803 strcat (temp, name);
1804 strcat (temp, file_suffix);
1805 if (access (temp, mode) == 0)
1807 if (pl->used_flag_ptr != 0)
1808 *pl->used_flag_ptr = 1;
1813 strcpy (temp, pl->prefix);
1814 strcat (temp, just_machine_suffix);
1815 strcat (temp, name);
1816 if (access (temp, mode) == 0)
1818 if (pl->used_flag_ptr != 0)
1819 *pl->used_flag_ptr = 1;
1824 /* Certain prefixes can't be used without the machine suffix
1825 when the machine or version is explicitly specified. */
1826 if (!pl->require_machine_suffix)
1828 /* Some systems have a suffix for executable files.
1829 So try appending that first. */
1830 if (file_suffix[0] != 0)
1832 strcpy (temp, pl->prefix);
1833 strcat (temp, name);
1834 strcat (temp, file_suffix);
1835 if (access (temp, mode) == 0)
1837 if (pl->used_flag_ptr != 0)
1838 *pl->used_flag_ptr = 1;
1843 strcpy (temp, pl->prefix);
1844 strcat (temp, name);
1845 if (access (temp, mode) == 0)
1847 if (pl->used_flag_ptr != 0)
1848 *pl->used_flag_ptr = 1;
1858 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1859 at the start of the list, otherwise it goes at the end.
1861 If WARN is nonzero, we will warn if no file is found
1862 through this prefix. WARN should point to an int
1863 which will be set to 1 if this entry is used.
1865 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1866 the complete value of machine_suffix.
1867 2 means try both machine_suffix and just_machine_suffix. */
1870 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1871 struct path_prefix *pprefix;
1874 int require_machine_suffix;
1877 struct prefix_list *pl, **prev;
1880 if (!first && pprefix->plist)
1882 for (pl = pprefix->plist; pl->next; pl = pl->next)
1887 prev = &pprefix->plist;
1889 /* Keep track of the longest prefix */
1891 len = strlen (prefix);
1892 if (len > pprefix->max_len)
1893 pprefix->max_len = len;
1895 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1896 pl->prefix = save_string (prefix, len);
1897 pl->require_machine_suffix = require_machine_suffix;
1898 pl->used_flag_ptr = warn;
1905 pl->next = (struct prefix_list *) 0;
1909 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1912 unused_prefix_warnings (pprefix)
1913 struct path_prefix *pprefix;
1915 struct prefix_list *pl = pprefix->plist;
1919 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1921 if (pl->require_machine_suffix && machine_suffix)
1922 error ("file path prefix `%s%s' never used", pl->prefix,
1925 error ("file path prefix `%s' never used", pl->prefix);
1927 /* Prevent duplicate warnings. */
1928 *pl->used_flag_ptr = 1;
1934 /* Get rid of all prefixes built up so far in *PLISTP. */
1937 free_path_prefix (pprefix)
1938 struct path_prefix *pprefix;
1940 struct prefix_list *pl = pprefix->plist;
1941 struct prefix_list *temp;
1947 free (temp->prefix);
1948 free ((char *) temp);
1950 pprefix->plist = (struct prefix_list *) 0;
1953 /* stdin file number. */
1954 #define STDIN_FILE_NO 0
1956 /* stdout file number. */
1957 #define STDOUT_FILE_NO 1
1959 /* value of `pipe': port index for reading. */
1962 /* value of `pipe': port index for writing. */
1963 #define WRITE_PORT 1
1965 /* Pipe waiting from last process, to be used as input for the next one.
1966 Value is STDIN_FILE_NO if no pipe is waiting
1967 (i.e. the next command is the first of a group). */
1969 static int last_pipe_input;
1971 /* Fork one piped subcommand. FUNC is the system call to use
1972 (either execv or execvp). ARGV is the arg vector to use.
1973 NOT_LAST is nonzero if this is not the last subcommand
1974 (i.e. its output should be piped to the next one.) */
1978 #include <process.h>
1980 pexecute (search_flag, program, argv, not_last)
1987 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1991 int i, el = search_flag ? 0 : 4;
1993 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1994 rf = scmd + strlen(program) + 2 + el;
1995 sprintf (scmd, "%s%s @%s.gp", program,
1996 (search_flag ? "" : ".exe"), temp_filename);
1997 argfile = fopen (rf, "w");
1999 pfatal_with_name (rf);
2001 for (i=1; argv[i]; i++)
2004 for (cp = argv[i]; *cp; cp++)
2006 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2007 fputc ('\\', argfile);
2008 fputc (*cp, argfile);
2010 fputc ('\n', argfile);
2021 perror_exec (program);
2022 return MIN_FATAL_STATUS << 8;
2029 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2032 pexecute (search_flag, program, argv, not_last)
2038 int (*func)() = (search_flag ? execv : execvp);
2041 int input_desc = last_pipe_input;
2042 int output_desc = STDOUT_FILE_NO;
2043 int retries, sleep_interval;
2045 /* If this isn't the last process, make a pipe for its output,
2046 and record it as waiting to be the input to the next process. */
2050 if (pipe (pdes) < 0)
2051 pfatal_with_name ("pipe");
2052 output_desc = pdes[WRITE_PORT];
2053 last_pipe_input = pdes[READ_PORT];
2056 last_pipe_input = STDIN_FILE_NO;
2058 /* Fork a subprocess; wait and retry if it fails. */
2060 for (retries = 0; retries < 4; retries++)
2065 sleep (sleep_interval);
2066 sleep_interval *= 2;
2073 pfatal_with_name ("fork");
2075 pfatal_with_name ("vfork");
2081 /* Move the input and output pipes into place, if nec. */
2082 if (input_desc != STDIN_FILE_NO)
2084 close (STDIN_FILE_NO);
2088 if (output_desc != STDOUT_FILE_NO)
2090 close (STDOUT_FILE_NO);
2092 close (output_desc);
2095 /* Close the parent's descs that aren't wanted here. */
2096 if (last_pipe_input != STDIN_FILE_NO)
2097 close (last_pipe_input);
2099 /* Exec the program. */
2100 (*func) (program, argv);
2101 perror_exec (program);
2107 /* In the parent, after forking.
2108 Close the descriptors that we made for this child. */
2109 if (input_desc != STDIN_FILE_NO)
2111 if (output_desc != STDOUT_FILE_NO)
2112 close (output_desc);
2114 /* Return child's process number. */
2119 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2124 pexecute (search_flag, program, argv, not_last)
2130 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2137 pexecute (search_flag, program, argv, not_last)
2143 return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
2148 /* Execute the command specified by the arguments on the current line of spec.
2149 When using pipes, this includes several piped-together commands
2150 with `|' between them.
2152 Return 0 if successful, -1 if failed. */
2158 int n_commands; /* # of command. */
2162 char *prog; /* program name. */
2163 char **argv; /* vector of args. */
2164 int pid; /* pid of process for this command. */
2167 struct command *commands; /* each command buffer with above info. */
2169 /* Count # of piped commands. */
2170 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2171 if (strcmp (argbuf[i], "|") == 0)
2174 /* Get storage for each command. */
2176 = (struct command *) alloca (n_commands * sizeof (struct command));
2178 /* Split argbuf into its separate piped processes,
2179 and record info about each one.
2180 Also search for the programs that are to be run. */
2182 commands[0].prog = argbuf[0]; /* first command. */
2183 commands[0].argv = &argbuf[0];
2184 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2186 commands[0].argv[0] = string;
2188 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2189 if (strcmp (argbuf[i], "|") == 0)
2190 { /* each command. */
2192 fatal ("-pipe not supported under MS-DOS");
2194 argbuf[i] = 0; /* termination of command args. */
2195 commands[n_commands].prog = argbuf[i + 1];
2196 commands[n_commands].argv = &argbuf[i + 1];
2197 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2199 commands[n_commands].argv[0] = string;
2203 argbuf[argbuf_index] = 0;
2205 /* If -v, print what we are about to do, and maybe query. */
2209 /* Print each piped command as a separate line. */
2210 for (i = 0; i < n_commands ; i++)
2214 for (j = commands[i].argv; *j; j++)
2215 fprintf (stderr, " %s", *j);
2217 /* Print a pipe symbol after all but the last command. */
2218 if (i + 1 != n_commands)
2219 fprintf (stderr, " |");
2220 fprintf (stderr, "\n");
2224 fprintf (stderr, "\nGo ahead? (y or n) ");
2228 while (getchar () != '\n') ;
2229 if (i != 'y' && i != 'Y')
2234 /* Run each piped subprocess. */
2236 last_pipe_input = STDIN_FILE_NO;
2237 for (i = 0; i < n_commands; i++)
2239 char *string = commands[i].argv[0];
2241 commands[i].pid = pexecute (string != commands[i].prog,
2242 string, commands[i].argv,
2243 i + 1 < n_commands);
2245 if (string != commands[i].prog)
2251 /* Wait for all the subprocesses to finish.
2252 We don't care what order they finish in;
2253 we know that N_COMMANDS waits will get them all.
2254 Ignore subprocesses that we don't know about,
2255 since they can be spawned by the process that exec'ed us. */
2260 for (i = 0; i < n_commands; )
2267 status = pid = commands[i].pid;
2270 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2272 pid = wait (&status);
2278 for (j = 0; j < n_commands; j++)
2279 if (commands[j].pid == pid)
2284 if (WIFSIGNALED (status))
2286 fatal ("Internal compiler error: program %s got fatal signal %d",
2287 commands[j].prog, WTERMSIG (status));
2291 else if (WIFEXITED (status)
2292 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2302 /* Find all the switches given to us
2303 and make a vector describing them.
2304 The elements of the vector are strings, one per switch given.
2305 If a switch uses following arguments, then the `part1' field
2306 is the switch itself and the `args' field
2307 is a null-terminated vector containing the following arguments.
2308 The `live_cond' field is 1 if the switch is true in a conditional spec,
2309 -1 if false (overridden by a later switch), and is initialized to zero.
2310 The `valid' field is nonzero if any spec has looked at this switch;
2311 if it remains zero at the end of the run, it must be meaningless. */
2321 static struct switchstr *switches;
2323 static int n_switches;
2331 /* Also a vector of input files specified. */
2333 static struct infile *infiles;
2335 static int n_infiles;
2337 /* And a vector of corresponding output files is made up later. */
2339 static char **outfiles;
2341 /* Used to track if none of the -B paths are used. */
2344 /* Used to track if standard path isn't used and -b or -V is specified. */
2345 static int warn_std;
2347 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2348 static int *warn_std_ptr = NULL_PTR;
2350 /* Create the vector `switches' and its contents.
2351 Store its length in `n_switches'. */
2354 process_command (argc, argv)
2360 char *spec_lang = 0;
2361 int last_language_n_infiles;
2365 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2370 /* Figure compiler version from version string. */
2372 compiler_version = save_string (version_string, strlen (version_string));
2373 for (temp = compiler_version; *temp; ++temp)
2382 /* Set up the default search paths. */
2384 if (gcc_exec_prefix)
2386 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2387 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2390 /* COMPILER_PATH and LIBRARY_PATH have values
2391 that are lists of directory names with colons. */
2393 temp = getenv ("COMPILER_PATH");
2396 char *startp, *endp;
2397 char *nstore = (char *) alloca (strlen (temp) + 3);
2399 startp = endp = temp;
2402 if (*endp == PATH_SEPARATOR || *endp == 0)
2404 strncpy (nstore, startp, endp-startp);
2406 strcpy (nstore, concat (".", dir_separator_str));
2407 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2409 nstore[endp-startp] = DIR_SEPARATOR;
2410 nstore[endp-startp+1] = 0;
2413 nstore[endp-startp] = 0;
2414 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2417 endp = startp = endp + 1;
2424 temp = getenv ("LIBRARY_PATH");
2425 if (temp && ! cross_compile)
2427 char *startp, *endp;
2428 char *nstore = (char *) alloca (strlen (temp) + 3);
2430 startp = endp = temp;
2433 if (*endp == PATH_SEPARATOR || *endp == 0)
2435 strncpy (nstore, startp, endp-startp);
2437 strcpy (nstore, concat (".", dir_separator_str));
2438 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2440 nstore[endp-startp] = DIR_SEPARATOR;
2441 nstore[endp-startp+1] = 0;
2444 nstore[endp-startp] = 0;
2445 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2448 endp = startp = endp + 1;
2455 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2456 temp = getenv ("LPATH");
2457 if (temp && ! cross_compile)
2459 char *startp, *endp;
2460 char *nstore = (char *) alloca (strlen (temp) + 3);
2462 startp = endp = temp;
2465 if (*endp == PATH_SEPARATOR || *endp == 0)
2467 strncpy (nstore, startp, endp-startp);
2469 strcpy (nstore, concat (".", dir_separator_str));
2470 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2472 nstore[endp-startp] = DIR_SEPARATOR;
2473 nstore[endp-startp+1] = 0;
2476 nstore[endp-startp] = 0;
2477 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2480 endp = startp = endp + 1;
2487 /* Convert new-style -- options to old-style. */
2488 translate_options (&argc, &argv);
2490 /* Scan argv twice. Here, the first time, just count how many switches
2491 there will be in their vector, and how many input files in theirs.
2492 Here we also parse the switches that cc itself uses (e.g. -v). */
2494 for (i = 1; i < argc; i++)
2496 if (! strcmp (argv[i], "-dumpspecs"))
2498 printf ("*asm:\n%s\n\n", asm_spec);
2499 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2500 printf ("*cpp:\n%s\n\n", cpp_spec);
2501 printf ("*cc1:\n%s\n\n", cc1_spec);
2502 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2503 printf ("*endfile:\n%s\n\n", endfile_spec);
2504 printf ("*link:\n%s\n\n", link_spec);
2505 printf ("*lib:\n%s\n\n", lib_spec);
2506 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2507 printf ("*startfile:\n%s\n\n", startfile_spec);
2508 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2509 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2510 printf ("*predefines:\n%s\n\n", cpp_predefines);
2511 printf ("*cross_compile:\n%d\n\n", cross_compile);
2512 printf ("*multilib:\n%s\n\n", multilib_select);
2516 else if (! strcmp (argv[i], "-dumpversion"))
2518 printf ("%s\n", version_string);
2521 else if (! strcmp (argv[i], "-dumpmachine"))
2523 printf ("%s\n", spec_machine);
2526 else if (! strcmp (argv[i], "-print-search-dirs"))
2527 print_search_dirs = 1;
2528 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2529 print_file_name = "libgcc.a";
2530 else if (! strncmp (argv[i], "-print-file-name=", 17))
2531 print_file_name = argv[i] + 17;
2532 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2533 print_prog_name = argv[i] + 17;
2534 else if (! strcmp (argv[i], "-print-multi-lib"))
2535 print_multi_lib = 1;
2536 else if (! strcmp (argv[i], "-print-multi-directory"))
2537 print_multi_directory = 1;
2538 else if (! strncmp (argv[i], "-Wa,", 4))
2541 /* Pass the rest of this option to the assembler. */
2543 n_assembler_options++;
2544 if (!assembler_options)
2546 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2549 = (char **) xrealloc (assembler_options,
2550 n_assembler_options * sizeof (char **));
2552 /* Split the argument at commas. */
2554 for (j = 4; argv[i][j]; j++)
2555 if (argv[i][j] == ',')
2557 assembler_options[n_assembler_options - 1]
2558 = save_string (argv[i] + prev, j - prev);
2559 n_assembler_options++;
2561 = (char **) xrealloc (assembler_options,
2562 n_assembler_options * sizeof (char **));
2565 /* Record the part after the last comma. */
2566 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2568 else if (! strncmp (argv[i], "-Wp,", 4))
2571 /* Pass the rest of this option to the preprocessor. */
2573 n_preprocessor_options++;
2574 if (!preprocessor_options)
2575 preprocessor_options
2576 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2578 preprocessor_options
2579 = (char **) xrealloc (preprocessor_options,
2580 n_preprocessor_options * sizeof (char **));
2582 /* Split the argument at commas. */
2584 for (j = 4; argv[i][j]; j++)
2585 if (argv[i][j] == ',')
2587 preprocessor_options[n_preprocessor_options - 1]
2588 = save_string (argv[i] + prev, j - prev);
2589 n_preprocessor_options++;
2590 preprocessor_options
2591 = (char **) xrealloc (preprocessor_options,
2592 n_preprocessor_options * sizeof (char **));
2595 /* Record the part after the last comma. */
2596 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2598 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2599 /* The +e options to the C++ front-end. */
2601 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2604 /* Split the argument at commas. */
2605 for (j = 3; argv[i][j]; j++)
2606 n_infiles += (argv[i][j] == ',');
2608 else if (strcmp (argv[i], "-Xlinker") == 0)
2611 fatal ("argument to `-Xlinker' is missing");
2616 else if (strncmp (argv[i], "-l", 2) == 0)
2618 else if (argv[i][0] == '-' && argv[i][1] != 0)
2620 register char *p = &argv[i][1];
2621 register int c = *p;
2626 if (p[1] == 0 && i + 1 == argc)
2627 fatal ("argument to `-b' is missing");
2629 spec_machine = argv[++i];
2631 spec_machine = p + 1;
2633 warn_std_ptr = &warn_std;
2638 int *temp = (int *) xmalloc (sizeof (int));
2640 if (p[1] == 0 && i + 1 == argc)
2641 fatal ("argument to `-B' is missing");
2646 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2647 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2648 add_prefix (&include_prefixes, concat (value, "include"),
2651 /* As a kludge, if the arg is "[foo/]stageN/", just add
2652 "[foo/]include" to the include prefix. */
2654 int len = strlen (value);
2657 && (value[len - 8] == '/'
2658 || value[len - 8] == DIR_SEPARATOR)))
2659 && strncmp (value + len - 7, "stage", 5) == 0
2660 && isdigit (value[len - 2])
2661 && (value[len - 1] == '/'
2662 || value[len - 1] == DIR_SEPARATOR))
2665 add_prefix (&include_prefixes, "include",
2669 char *string = xmalloc (len + 1);
2670 strncpy (string, value, len-7);
2671 strcat (string, "include");
2672 add_prefix (&include_prefixes, string,
2680 case 'v': /* Print our subcommands and print versions. */
2682 /* If they do anything other than exactly `-v', don't set
2683 verbose_flag; rather, continue on to give the error. */
2690 if (p[1] == 0 && i + 1 == argc)
2691 fatal ("argument to `-V' is missing");
2693 spec_version = argv[++i];
2695 spec_version = p + 1;
2696 compiler_version = spec_version;
2697 warn_std_ptr = &warn_std;
2701 if (!strcmp (p, "save-temps"))
2703 save_temps_flag = 1;
2722 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2723 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2724 else if (WORD_SWITCH_TAKES_ARG (p))
2725 i += WORD_SWITCH_TAKES_ARG (p);
2732 if (have_c && have_o && n_infiles != 1)
2733 fatal ("cannot specify -o with -c and multiple compilations");
2735 /* Set up the search paths before we go looking for config files. */
2737 /* These come before the md prefixes so that we will find gcc's subcommands
2738 (such as cpp) rather than those of the host system. */
2739 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2740 as well as trying the machine and the version. */
2742 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2743 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2746 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2747 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2749 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2752 /* If tooldir is relative, base it on exec_prefixes. A relative
2753 tooldir lets us move the installed tree as a unit.
2755 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2756 directories, so that we can search both the user specified directory
2757 and the standard place. */
2759 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2761 if (gcc_exec_prefix)
2763 char *gcc_exec_tooldir_prefix
2764 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2765 spec_version, dir_separator_str, tooldir_prefix);
2767 add_prefix (&exec_prefixes,
2768 concat3 (gcc_exec_tooldir_prefix, "bin",
2771 add_prefix (&startfile_prefixes,
2772 concat3 (gcc_exec_tooldir_prefix, "lib",
2777 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2778 dir_separator_str, spec_version,
2779 dir_separator_str, tooldir_prefix);
2782 add_prefix (&exec_prefixes,
2783 concat3 (tooldir_prefix, "bin", dir_separator_str),
2785 add_prefix (&startfile_prefixes,
2786 concat3 (tooldir_prefix, "lib", dir_separator_str),
2789 /* More prefixes are enabled in main, after we read the specs file
2790 and determine whether this is cross-compilation or not. */
2793 /* Then create the space for the vectors and scan again. */
2795 switches = ((struct switchstr *)
2796 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2797 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2800 last_language_n_infiles = -1;
2802 /* This, time, copy the text of each switch and store a pointer
2803 to the copy in the vector of switches.
2804 Store all the infiles in their vector. */
2806 for (i = 1; i < argc; i++)
2808 /* Just skip the switches that were handled by the preceding loop. */
2809 if (! strncmp (argv[i], "-Wa,", 4))
2811 else if (! strncmp (argv[i], "-Wp,", 4))
2813 else if (! strcmp (argv[i], "-print-search-dirs"))
2815 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2817 else if (! strncmp (argv[i], "-print-file-name=", 17))
2819 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2821 else if (! strcmp (argv[i], "-print-multi-lib"))
2823 else if (! strcmp (argv[i], "-print-multi-directory"))
2825 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2827 /* Compensate for the +e options to the C++ front-end;
2828 they're there simply for cfront call-compatibility. We do
2829 some magic in default_compilers to pass them down properly.
2830 Note we deliberately start at the `+' here, to avoid passing
2831 -e0 or -e1 down into the linker. */
2832 switches[n_switches].part1 = &argv[i][0];
2833 switches[n_switches].args = 0;
2834 switches[n_switches].live_cond = 0;
2835 switches[n_switches].valid = 0;
2838 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2841 /* Split the argument at commas. */
2843 for (j = 4; argv[i][j]; j++)
2844 if (argv[i][j] == ',')
2846 infiles[n_infiles].language = 0;
2847 infiles[n_infiles++].name
2848 = save_string (argv[i] + prev, j - prev);
2851 /* Record the part after the last comma. */
2852 infiles[n_infiles].language = 0;
2853 infiles[n_infiles++].name = argv[i] + prev;
2855 else if (strcmp (argv[i], "-Xlinker") == 0)
2857 infiles[n_infiles].language = 0;
2858 infiles[n_infiles++].name = argv[++i];
2860 else if (strncmp (argv[i], "-l", 2) == 0)
2862 infiles[n_infiles].language = 0;
2863 infiles[n_infiles++].name = argv[i];
2865 else if (argv[i][0] == '-' && argv[i][1] != 0)
2867 register char *p = &argv[i][1];
2868 register int c = *p;
2870 if (c == 'B' || c == 'b' || c == 'V')
2872 /* Skip a separate arg, if any. */
2879 if (p[1] == 0 && i + 1 == argc)
2880 fatal ("argument to `-x' is missing");
2882 spec_lang = argv[++i];
2885 if (! strcmp (spec_lang, "none"))
2886 /* Suppress the warning if -xnone comes after the last input
2887 file, because alternate command interfaces like g++ might
2888 find it useful to place -xnone after each input file. */
2891 last_language_n_infiles = n_infiles;
2894 switches[n_switches].part1 = p;
2895 /* Deal with option arguments in separate argv elements. */
2896 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2897 || WORD_SWITCH_TAKES_ARG (p))
2900 int n_args = WORD_SWITCH_TAKES_ARG (p);
2904 /* Count only the option arguments in separate argv elements. */
2905 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2907 if (i + n_args >= argc)
2908 fatal ("argument to `-%s' is missing", p);
2909 switches[n_switches].args
2910 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2912 switches[n_switches].args[j++] = argv[++i];
2913 /* Null-terminate the vector. */
2914 switches[n_switches].args[j] = 0;
2916 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2918 /* On some systems, ld cannot handle -o or -L without space.
2919 So split the -o or -L from its argument. */
2920 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2921 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2922 switches[n_switches].args[0] = xmalloc (strlen (p));
2923 strcpy (switches[n_switches].args[0], &p[1]);
2924 switches[n_switches].args[1] = 0;
2927 switches[n_switches].args = 0;
2929 switches[n_switches].live_cond = 0;
2930 switches[n_switches].valid = 0;
2931 /* This is always valid, since gcc.c itself understands it. */
2932 if (!strcmp (p, "save-temps"))
2933 switches[n_switches].valid = 1;
2938 #ifdef HAVE_OBJECT_SUFFIX
2939 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2940 if (strlen (argv[i]) > 2
2941 && argv[i][strlen (argv[i]) - 2] == '.'
2942 && argv[i][strlen (argv[i]) - 1] == 'o')
2946 for (j = 0; j < strlen (argv[i]) - 2; j++)
2947 obstack_1grow (&obstack, argv[i][j]);
2949 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2950 obstack_1grow (&obstack, 0);
2951 argv[i] = obstack_finish (&obstack);
2955 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2957 perror_with_name (argv[i]);
2962 infiles[n_infiles].language = spec_lang;
2963 infiles[n_infiles++].name = argv[i];
2968 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2969 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2971 switches[n_switches].part1 = 0;
2972 infiles[n_infiles].name = 0;
2975 /* Process a spec string, accumulating and running commands. */
2977 /* These variables describe the input file name.
2978 input_file_number is the index on outfiles of this file,
2979 so that the output file name can be stored for later use by %o.
2980 input_basename is the start of the part of the input file
2981 sans all directory names, and basename_length is the number
2982 of characters starting there excluding the suffix .c or whatever. */
2984 static char *input_filename;
2985 static int input_file_number;
2986 static int input_filename_length;
2987 static int basename_length;
2988 static char *input_basename;
2989 static char *input_suffix;
2991 /* These are variables used within do_spec and do_spec_1. */
2993 /* Nonzero if an arg has been started and not yet terminated
2994 (with space, tab or newline). */
2995 static int arg_going;
2997 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2998 is a temporary file name. */
2999 static int delete_this_arg;
3001 /* Nonzero means %w has been seen; the next arg to be terminated
3002 is the output file name of this compilation. */
3003 static int this_is_output_file;
3005 /* Nonzero means %s has been seen; the next arg to be terminated
3006 is the name of a library file and we should try the standard
3007 search dirs for it. */
3008 static int this_is_library_file;
3010 /* Nonzero means that the input of this command is coming from a pipe. */
3011 static int input_from_pipe;
3013 /* Process the spec SPEC and run the commands specified therein.
3014 Returns 0 if the spec is successfully processed; -1 if failed. */
3024 delete_this_arg = 0;
3025 this_is_output_file = 0;
3026 this_is_library_file = 0;
3027 input_from_pipe = 0;
3029 value = do_spec_1 (spec, 0, NULL_PTR);
3031 /* Force out any unfinished command.
3032 If -pipe, this forces out the last command if it ended in `|'. */
3035 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3038 if (argbuf_index > 0)
3045 /* Process the sub-spec SPEC as a portion of a larger spec.
3046 This is like processing a whole spec except that we do
3047 not initialize at the beginning and we do not supply a
3048 newline by default at the end.
3049 INSWITCH nonzero means don't process %-sequences in SPEC;
3050 in this case, % is treated as an ordinary character.
3051 This is used while substituting switches.
3052 INSWITCH nonzero also causes SPC not to terminate an argument.
3054 Value is zero unless a line was finished
3055 and the command on that line reported an error. */
3058 do_spec_1 (spec, inswitch, soft_matched_part)
3061 char *soft_matched_part;
3063 register char *p = spec;
3070 /* If substituting a switch, treat all chars like letters.
3071 Otherwise, NL, SPC, TAB and % are special. */
3072 switch (inswitch ? 'a' : c)
3075 /* End of line: finish any pending argument,
3076 then run the pending command if one has been started. */
3079 obstack_1grow (&obstack, 0);
3080 string = obstack_finish (&obstack);
3081 if (this_is_library_file)
3082 string = find_file (string);
3083 store_arg (string, delete_this_arg, this_is_output_file);
3084 if (this_is_output_file)
3085 outfiles[input_file_number] = string;
3089 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3091 for (i = 0; i < n_switches; i++)
3092 if (!strcmp (switches[i].part1, "pipe"))
3095 /* A `|' before the newline means use a pipe here,
3096 but only if -pipe was specified.
3097 Otherwise, execute now and don't pass the `|' as an arg. */
3100 input_from_pipe = 1;
3101 switches[i].valid = 1;
3108 if (argbuf_index > 0)
3114 /* Reinitialize for a new command, and for a new argument. */
3117 delete_this_arg = 0;
3118 this_is_output_file = 0;
3119 this_is_library_file = 0;
3120 input_from_pipe = 0;
3124 /* End any pending argument. */
3127 obstack_1grow (&obstack, 0);
3128 string = obstack_finish (&obstack);
3129 if (this_is_library_file)
3130 string = find_file (string);
3131 store_arg (string, delete_this_arg, this_is_output_file);
3132 if (this_is_output_file)
3133 outfiles[input_file_number] = string;
3137 obstack_1grow (&obstack, c);
3143 /* Space or tab ends an argument if one is pending. */
3146 obstack_1grow (&obstack, 0);
3147 string = obstack_finish (&obstack);
3148 if (this_is_library_file)
3149 string = find_file (string);
3150 store_arg (string, delete_this_arg, this_is_output_file);
3151 if (this_is_output_file)
3152 outfiles[input_file_number] = string;
3154 /* Reinitialize for a new argument. */
3156 delete_this_arg = 0;
3157 this_is_output_file = 0;
3158 this_is_library_file = 0;
3165 fatal ("Invalid specification! Bug in cc.");
3168 obstack_grow (&obstack, input_basename, basename_length);
3173 delete_this_arg = 2;
3176 /* Dump out the directories specified with LIBRARY_PATH,
3177 followed by the absolute directories
3178 that we search for startfiles. */
3181 struct prefix_list *pl = startfile_prefixes.plist;
3183 char *buffer = (char *) xmalloc (bufsize);
3186 for (; pl; pl = pl->next)
3188 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3189 /* Used on systems which record the specified -L dirs
3190 and use them to search for dynamic linking. */
3191 /* Relative directories always come from -B,
3192 and it is better not to use them for searching
3193 at run time. In particular, stage1 loses */
3194 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3197 /* Try subdirectory if there is one. */
3198 if (multilib_dir != NULL)
3202 if (strlen (pl->prefix) + strlen (machine_suffix)
3204 bufsize = (strlen (pl->prefix)
3205 + strlen (machine_suffix)) * 2 + 1;
3206 buffer = (char *) xrealloc (buffer, bufsize);
3207 strcpy (buffer, pl->prefix);
3208 strcat (buffer, machine_suffix);
3209 if (is_directory (buffer, multilib_dir, 1))
3211 do_spec_1 ("-L", 0, NULL_PTR);
3212 #ifdef SPACE_AFTER_L_OPTION
3213 do_spec_1 (" ", 0, NULL_PTR);
3215 do_spec_1 (buffer, 1, NULL_PTR);
3216 do_spec_1 (multilib_dir, 1, NULL_PTR);
3217 /* Make this a separate argument. */
3218 do_spec_1 (" ", 0, NULL_PTR);
3221 if (!pl->require_machine_suffix)
3223 if (is_directory (pl->prefix, multilib_dir, 1))
3225 do_spec_1 ("-L", 0, NULL_PTR);
3226 #ifdef SPACE_AFTER_L_OPTION
3227 do_spec_1 (" ", 0, NULL_PTR);
3229 do_spec_1 (pl->prefix, 1, NULL_PTR);
3230 do_spec_1 (multilib_dir, 1, NULL_PTR);
3231 /* Make this a separate argument. */
3232 do_spec_1 (" ", 0, NULL_PTR);
3238 if (is_directory (pl->prefix, machine_suffix, 1))
3240 do_spec_1 ("-L", 0, NULL_PTR);
3241 #ifdef SPACE_AFTER_L_OPTION
3242 do_spec_1 (" ", 0, NULL_PTR);
3244 do_spec_1 (pl->prefix, 1, NULL_PTR);
3245 /* Remove slash from machine_suffix. */
3246 if (strlen (machine_suffix) >= bufsize)
3247 bufsize = strlen (machine_suffix) * 2 + 1;
3248 buffer = (char *) xrealloc (buffer, bufsize);
3249 strcpy (buffer, machine_suffix);
3250 idx = strlen (buffer);
3251 if (buffer[idx - 1] == '/'
3252 || buffer[idx - 1] == DIR_SEPARATOR)
3253 buffer[idx - 1] = 0;
3254 do_spec_1 (buffer, 1, NULL_PTR);
3255 /* Make this a separate argument. */
3256 do_spec_1 (" ", 0, NULL_PTR);
3259 if (!pl->require_machine_suffix)
3261 if (is_directory (pl->prefix, "", 1))
3263 do_spec_1 ("-L", 0, NULL_PTR);
3264 #ifdef SPACE_AFTER_L_OPTION
3265 do_spec_1 (" ", 0, NULL_PTR);
3267 /* Remove slash from pl->prefix. */
3268 if (strlen (pl->prefix) >= bufsize)
3269 bufsize = strlen (pl->prefix) * 2 + 1;
3270 buffer = (char *) xrealloc (buffer, bufsize);
3271 strcpy (buffer, pl->prefix);
3272 idx = strlen (buffer);
3273 if (buffer[idx - 1] == '/'
3274 || buffer[idx - 1] == DIR_SEPARATOR)
3275 buffer[idx - 1] = 0;
3276 do_spec_1 (buffer, 1, NULL_PTR);
3277 /* Make this a separate argument. */
3278 do_spec_1 (" ", 0, NULL_PTR);
3287 /* {...:%efoo} means report an error with `foo' as error message
3288 and don't execute any more commands for this file. */
3292 while (*p != 0 && *p != '\n') p++;
3293 buf = (char *) alloca (p - q + 1);
3294 strncpy (buf, q, p - q);
3304 if (save_temps_flag)
3306 obstack_grow (&obstack, input_basename, basename_length);
3307 delete_this_arg = 0;
3311 #ifdef MKTEMP_EACH_FILE
3312 /* ??? This has a problem: the total number of
3313 values mktemp can return is limited.
3314 That matters for the names of object files.
3315 In 2.4, do something about that. */
3316 struct temp_name *t;
3318 while (*p == '.' || isalpha (*p)
3319 || (p[0] == '%' && p[1] == 'O'))
3322 /* See if we already have an association of %g/%u/%U and
3324 for (t = temp_names; t; t = t->next)
3325 if (t->length == p - suffix
3326 && strncmp (t->suffix, suffix, p - suffix) == 0
3327 && t->unique == (c != 'g'))
3330 /* Make a new association if needed. %u requires one. */
3331 if (t == 0 || c == 'u')
3335 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3336 t->next = temp_names;
3339 t->length = p - suffix;
3340 t->suffix = save_string (suffix, p - suffix);
3341 t->unique = (c != 'g');
3342 choose_temp_base ();
3343 t->filename = temp_filename;
3344 t->filename_length = temp_filename_length;
3347 obstack_grow (&obstack, t->filename, t->filename_length);
3348 delete_this_arg = 1;
3350 obstack_grow (&obstack, temp_filename, temp_filename_length);
3351 if (c == 'u' || c == 'U')
3357 sprintf (buff, "%d", unique);
3358 obstack_grow (&obstack, buff, strlen (buff));
3361 delete_this_arg = 1;
3367 obstack_grow (&obstack, input_filename, input_filename_length);
3373 struct prefix_list *pl = include_prefixes.plist;
3375 if (gcc_exec_prefix)
3377 do_spec_1 ("-iprefix", 1, NULL_PTR);
3378 /* Make this a separate argument. */
3379 do_spec_1 (" ", 0, NULL_PTR);
3380 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3381 do_spec_1 (" ", 0, NULL_PTR);
3384 for (; pl; pl = pl->next)
3386 do_spec_1 ("-isystem", 1, NULL_PTR);
3387 /* Make this a separate argument. */
3388 do_spec_1 (" ", 0, NULL_PTR);
3389 do_spec_1 (pl->prefix, 1, NULL_PTR);
3390 do_spec_1 (" ", 0, NULL_PTR);
3396 for (i = 0; i < n_infiles; i++)
3397 store_arg (outfiles[i], 0, 0);
3401 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3406 this_is_library_file = 1;
3410 this_is_output_file = 1;
3415 int cur_index = argbuf_index;
3416 /* Handle the {...} following the %W. */
3419 p = handle_braces (p + 1);
3422 /* If any args were output, mark the last one for deletion
3424 if (argbuf_index != cur_index)
3425 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3429 /* %x{OPTION} records OPTION for %X to output. */
3435 /* Skip past the option value and make a copy. */
3440 string = save_string (p1 + 1, p - p1 - 2);
3442 /* See if we already recorded this option. */
3443 for (i = 0; i < n_linker_options; i++)
3444 if (! strcmp (string, linker_options[i]))
3450 /* This option is new; add it. */
3452 if (!linker_options)
3454 = (char **) xmalloc (n_linker_options * sizeof (char **));
3457 = (char **) xrealloc (linker_options,
3458 n_linker_options * sizeof (char **));
3460 linker_options[n_linker_options - 1] = string;
3464 /* Dump out the options accumulated previously using %x. */
3466 for (i = 0; i < n_linker_options; i++)
3468 do_spec_1 (linker_options[i], 1, NULL_PTR);
3469 /* Make each accumulated option a separate argument. */
3470 do_spec_1 (" ", 0, NULL_PTR);
3474 /* Dump out the options accumulated previously using -Wa,. */
3476 for (i = 0; i < n_assembler_options; i++)
3478 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3479 /* Make each accumulated option a separate argument. */
3480 do_spec_1 (" ", 0, NULL_PTR);
3484 /* Dump out the options accumulated previously using -Wp,. */
3486 for (i = 0; i < n_preprocessor_options; i++)
3488 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3489 /* Make each accumulated option a separate argument. */
3490 do_spec_1 (" ", 0, NULL_PTR);
3494 /* Here are digits and numbers that just process
3495 a certain constant string as a spec. */
3498 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3504 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3510 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3516 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3522 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3528 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3534 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3540 value = do_spec_1 (link_spec, 0, NULL_PTR);
3546 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3552 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3559 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3563 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3567 if (! strncmp (y, "-D", 2))
3568 /* Copy the whole option. */
3569 while (*y && *y != ' ' && *y != '\t')
3571 else if (*y == ' ' || *y == '\t')
3572 /* Copy whitespace to the result. */
3574 /* Don't copy other options. */
3581 value = do_spec_1 (buf, 0, NULL_PTR);
3589 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3593 /* Copy all of CPP_PREDEFINES into BUF,
3594 but put __ after every -D and at the end of each arg. */
3598 if (! strncmp (y, "-D", 2))
3606 || (*(y+1) != '_' && ! isupper (*(y+1))))
3608 /* Stick __ at front of macro name. */
3611 /* Arrange to stick __ at the end as well. */
3615 /* Copy the macro name. */
3616 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3625 /* Copy the value given, if any. */
3626 while (*y && *y != ' ' && *y != '\t')
3629 else if (*y == ' ' || *y == '\t')
3630 /* Copy whitespace to the result. */
3632 /* Don't copy -A options */
3638 /* Copy all of CPP_PREDEFINES into BUF,
3639 but put __ after every -D. */
3643 if (! strncmp (y, "-D", 2))
3648 || (*(y+1) != '_' && ! isupper (*(y+1))))
3650 /* Stick -D__ at front of macro name. */
3656 /* Copy the macro name. */
3657 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3660 /* Copy the value given, if any. */
3661 while (*y && *y != ' ' && *y != '\t')
3666 /* Do not copy this macro - we have just done it before */
3667 while (*y && *y != ' ' && *y != '\t')
3671 else if (*y == ' ' || *y == '\t')
3672 /* Copy whitespace to the result. */
3674 /* Don't copy -A options */
3680 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3684 if (! strncmp (y, "-A", 2))
3685 /* Copy the whole option. */
3686 while (*y && *y != ' ' && *y != '\t')
3688 else if (*y == ' ' || *y == '\t')
3689 /* Copy whitespace to the result. */
3691 /* Don't copy other options. */
3698 value = do_spec_1 (buf, 0, NULL_PTR);
3705 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3710 /* Here we define characters other than letters and digits. */
3713 p = handle_braces (p);
3719 obstack_1grow (&obstack, '%');
3723 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3724 do_spec_1 (" ", 0, NULL_PTR);
3727 /* Process a string found as the value of a spec given by name.
3728 This feature allows individual machine descriptions
3729 to add and use their own specs.
3730 %[...] modifies -D options the way %P does;
3731 %(...) uses the spec unmodified. */
3736 struct spec_list *sl;
3739 /* The string after the S/P is the name of a spec that is to be
3741 while (*p && *p != ')' && *p != ']')
3744 /* See if it's in the list */
3745 for (len = p - name, sl = specs; sl; sl = sl->next)
3746 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3756 value = do_spec_1 (name, 0, NULL_PTR);
3762 char *x = (char *) alloca (strlen (name) * 2 + 1);
3766 /* Copy all of NAME into BUF, but put __ after
3767 every -D and at the end of each arg, */
3770 if (! strncmp (y, "-D", 2))
3778 else if (*y == ' ' || *y == 0)
3792 value = do_spec_1 (buf, 0, NULL_PTR);
3798 /* Discard the closing paren or bracket. */
3806 int c1 = *p++; /* Select first or second version number. */
3807 char *v = compiler_version;
3809 /* If desired, advance to second version number. */
3812 /* Set V after the first period. */
3813 while (*v != 0 && *v != ' ' && *v != '.')
3818 /* Set Q at the next period or at the end. */
3820 while (*q != 0 && *q != ' ' && *q != '.')
3822 /* Empty string means zero. */
3828 /* Put that part into the command. */
3829 obstack_grow (&obstack, v, q - v);
3835 if (input_from_pipe)
3836 do_spec_1 ("-", 0, NULL_PTR);
3845 /* Backslash: treat next character as ordinary. */
3850 /* Ordinary character: put it into the current argument. */
3851 obstack_1grow (&obstack, c);
3855 return 0; /* End of string */
3858 /* Return 0 if we call do_spec_1 and that returns -1. */
3871 /* A `|' after the open-brace means,
3872 if the test fails, output a single minus sign rather than nothing.
3873 This is used in %{|!pipe:...}. */
3877 /* A `!' after the open-brace negates the condition:
3878 succeed if the specified switch is not present. */
3882 /* A `.' after the open-brace means test against the current suffix. */
3892 while (*p != ':' && *p != '}') p++;
3895 register int count = 1;
3913 int found = (input_suffix != 0
3914 && strlen (input_suffix) == p - filter
3915 && strncmp (input_suffix, filter, p - filter) == 0);
3921 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3926 else if (p[-1] == '*' && p[0] == '}')
3928 /* Substitute all matching switches as separate args. */
3931 for (i = 0; i < n_switches; i++)
3932 if (!strncmp (switches[i].part1, filter, p - filter)
3933 && check_live_switch (i, p - filter))
3938 /* Test for presence of the specified switch. */
3942 /* If name specified ends in *, as in {x*:...},
3943 check for %* and handle that case. */
3944 if (p[-1] == '*' && !negate)
3949 /* First see whether we have %*. */
3953 if (*r == '%' && r[1] == '*')
3957 /* If we do, handle that case. */
3960 /* Substitute all matching switches as separate args.
3961 But do this by substituting for %*
3962 in the text that follows the colon. */
3964 unsigned hard_match_len = p - filter - 1;
3965 char *string = save_string (p + 1, q - p - 2);
3967 for (i = 0; i < n_switches; i++)
3968 if (!strncmp (switches[i].part1, filter, hard_match_len)
3969 && check_live_switch (i, -1))
3971 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3972 /* Pass any arguments this switch has. */
3980 /* If name specified ends in *, as in {x*:...},
3981 check for presence of any switch name starting with x. */
3984 for (i = 0; i < n_switches; i++)
3986 unsigned hard_match_len = p - filter - 1;
3988 if (!strncmp (switches[i].part1, filter, hard_match_len)
3989 && check_live_switch (i, hard_match_len))
3995 /* Otherwise, check for presence of exact name specified. */
3998 for (i = 0; i < n_switches; i++)
4000 if (!strncmp (switches[i].part1, filter, p - filter)
4001 && switches[i].part1[p - filter] == 0
4002 && check_live_switch (i, -1))
4010 /* If it is as desired (present for %{s...}, absent for %{-s...})
4011 then substitute either the switch or the specified
4012 conditional text. */
4013 if (present != negate)
4021 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4027 /* Here if a %{|...} conditional fails: output a minus sign,
4028 which means "standard output" or "standard input". */
4029 do_spec_1 ("-", 0, NULL_PTR);
4036 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4037 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4038 spec, or -1 if either exact match or %* is used.
4040 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4041 whose value does not begin with "no-" is obsoleted by the same value
4042 with the "no-", similarly for a switch with the "no-" prefix. */
4045 check_live_switch (switchnum, prefix_length)
4049 char *name = switches[switchnum].part1;
4052 /* In the common case of {<at-most-one-letter>*}, a negating
4053 switch would always match, so ignore that case. We will just
4054 send the conflicting switches to the compiler phase. */
4055 if (prefix_length >= 0 && prefix_length <= 1)
4058 /* If we already processed this switch and determined if it was
4059 live or not, return our past determination. */
4060 if (switches[switchnum].live_cond != 0)
4061 return switches[switchnum].live_cond > 0;
4063 /* Now search for duplicate in a manner that depends on the name. */
4067 for (i = switchnum + 1; i < n_switches; i++)
4068 if (switches[i].part1[0] == 'O')
4070 switches[switchnum].valid = 1;
4071 switches[switchnum].live_cond = -1;
4076 case 'W': case 'f': case 'm':
4077 if (! strncmp (name + 1, "no-", 3))
4079 /* We have Xno-YYY, search for XYYY. */
4080 for (i = switchnum + 1; i < n_switches; i++)
4081 if (switches[i].part1[0] == name[0]
4082 && ! strcmp (&switches[i].part1[1], &name[4]))
4084 switches[switchnum].valid = 1;
4085 switches[switchnum].live_cond = -1;
4091 /* We have XYYY, search for Xno-YYY. */
4092 for (i = switchnum + 1; i < n_switches; i++)
4093 if (switches[i].part1[0] == name[0]
4094 && switches[i].part1[1] == 'n'
4095 && switches[i].part1[2] == 'o'
4096 && switches[i].part1[3] == '-'
4097 && !strcmp (&switches[i].part1[4], &name[1]))
4099 switches[switchnum].valid = 1;
4100 switches[switchnum].live_cond = -1;
4107 /* Otherwise the switch is live. */
4108 switches[switchnum].live_cond = 1;
4112 /* Pass a switch to the current accumulating command
4113 in the same form that we received it.
4114 SWITCHNUM identifies the switch; it is an index into
4115 the vector of switches gcc received, which is `switches'.
4116 This cannot fail since it never finishes a command line.
4118 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4121 give_switch (switchnum, omit_first_word)
4123 int omit_first_word;
4125 if (!omit_first_word)
4127 do_spec_1 ("-", 0, NULL_PTR);
4128 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4130 do_spec_1 (" ", 0, NULL_PTR);
4131 if (switches[switchnum].args != 0)
4134 for (p = switches[switchnum].args; *p; p++)
4136 do_spec_1 (*p, 1, NULL_PTR);
4137 do_spec_1 (" ", 0, NULL_PTR);
4140 switches[switchnum].valid = 1;
4143 /* Search for a file named NAME trying various prefixes including the
4144 user's -B prefix and some standard ones.
4145 Return the absolute file name found. If nothing is found, return NAME. */
4153 /* Try multilib_dir if it is defined. */
4154 if (multilib_dir != NULL)
4158 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4159 strcpy (try, multilib_dir);
4160 strcat (try, dir_separator_str);
4163 newname = find_a_file (&startfile_prefixes, try, R_OK);
4165 /* If we don't find it in the multi library dir, then fall
4166 through and look for it in the normal places. */
4167 if (newname != NULL)
4171 newname = find_a_file (&startfile_prefixes, name, R_OK);
4172 return newname ? newname : name;
4175 /* Determine whether a directory exists. If LINKER, return 0 for
4176 certain fixed names not needed by the linker. If not LINKER, it is
4177 only important to return 0 if the host machine has a small ARG_MAX
4181 is_directory (path1, path2, linker)
4186 int len1 = strlen (path1);
4187 int len2 = strlen (path2);
4188 char *path = (char *) alloca (3 + len1 + len2);
4192 #ifndef SMALL_ARG_MAX
4197 /* Construct the path from the two parts. Ensure the string ends with "/.".
4198 The resulting path will be a directory even if the given path is a
4200 bcopy (path1, path, len1);
4201 bcopy (path2, path + len1, len2);
4202 cp = path + len1 + len2;
4203 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4204 *cp++ = DIR_SEPARATOR;
4208 /* Exclude directories that the linker is known to search. */
4211 && strcmp (path, concat4 (dir_separator_str, "lib",
4212 dir_separator_str, ".")) == 0)
4214 && strcmp (path, concat6 (dir_separator_str, "usr",
4215 dir_separator_str, "lib",
4216 dir_separator_str, ".")) == 0)))
4219 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4222 /* On fatal signals, delete all the temporary files. */
4225 fatal_error (signum)
4228 signal (signum, SIG_DFL);
4229 delete_failure_queue ();
4230 delete_temp_files ();
4231 /* Get the same signal again, this time not handled,
4232 so its normal effect occurs. */
4233 kill (getpid (), signum);
4244 int linker_was_run = 0;
4245 char *explicit_link_files;
4249 p = argv[0] + strlen (argv[0]);
4250 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4253 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4254 signal (SIGINT, fatal_error);
4256 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4257 signal (SIGHUP, fatal_error);
4259 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4260 signal (SIGTERM, fatal_error);
4262 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4263 signal (SIGPIPE, fatal_error);
4267 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4269 obstack_init (&obstack);
4271 /* Set up to remember the pathname of gcc and any options
4272 needed for collect. We use argv[0] instead of programname because
4273 we need the complete pathname. */
4274 obstack_init (&collect_obstack);
4275 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4276 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4277 putenv (obstack_finish (&collect_obstack));
4279 #ifdef INIT_ENVIRONMENT
4280 /* Set up any other necessary machine specific environment variables. */
4281 putenv (INIT_ENVIRONMENT);
4284 /* Choose directory for temp files. */
4286 choose_temp_base ();
4288 /* Make a table of what switches there are (switches, n_switches).
4289 Make a table of specified input files (infiles, n_infiles).
4290 Decode switches that are handled locally. */
4292 process_command (argc, argv);
4294 /* Initialize the vector of specs to just the default.
4295 This means one element containing 0s, as a terminator. */
4297 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4298 bcopy ((char *) default_compilers, (char *) compilers,
4299 sizeof default_compilers);
4300 n_compilers = n_default_compilers;
4302 /* Read specs from a file if there is one. */
4304 machine_suffix = concat4 (spec_machine, dir_separator_str,
4305 spec_version, dir_separator_str);
4306 just_machine_suffix = concat (spec_machine, dir_separator_str);
4308 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4309 /* Read the specs file unless it is a default one. */
4310 if (specs_file != 0 && strcmp (specs_file, "specs"))
4311 read_specs (specs_file);
4313 /* If not cross-compiling, look for startfiles in the standard places. */
4314 /* The fact that these are done here, after reading the specs file,
4315 means that it cannot be found in these directories.
4316 But that's okay. It should never be there anyway. */
4319 #ifdef MD_EXEC_PREFIX
4320 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4321 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4324 #ifdef MD_STARTFILE_PREFIX
4325 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4328 #ifdef MD_STARTFILE_PREFIX_1
4329 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4332 /* If standard_startfile_prefix is relative, base it on
4333 standard_exec_prefix. This lets us move the installed tree
4334 as a unit. If GCC_EXEC_PREFIX is defined, base
4335 standard_startfile_prefix on that as well. */
4336 if (*standard_startfile_prefix == '/'
4337 || *standard_startfile_prefix == DIR_SEPARATOR)
4338 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4342 if (gcc_exec_prefix)
4343 add_prefix (&startfile_prefixes,
4344 concat3 (gcc_exec_prefix, machine_suffix,
4345 standard_startfile_prefix),
4347 add_prefix (&startfile_prefixes,
4348 concat3 (standard_exec_prefix,
4350 standard_startfile_prefix),
4354 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4356 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4358 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4359 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4364 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4365 add_prefix (&startfile_prefixes,
4366 concat3 (gcc_exec_prefix, machine_suffix,
4367 standard_startfile_prefix),
4371 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4372 if (gcc_exec_prefix)
4374 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4375 + strlen (spec_version)
4376 + strlen (spec_machine) + 3);
4377 strcpy (temp, gcc_exec_prefix);
4378 strcat (temp, spec_machine);
4379 strcat (temp, dir_separator_str);
4380 strcat (temp, spec_version);
4381 strcat (temp, dir_separator_str);
4382 gcc_exec_prefix = temp;
4385 /* Now we have the specs.
4386 Set the `valid' bits for switches that match anything in any spec. */
4388 validate_all_switches ();
4390 /* Now that we have the switches and the specs, set
4391 the subdirectory based on the options. */
4392 set_multilib_dir ();
4394 /* Warn about any switches that no pass was interested in. */
4396 for (i = 0; i < n_switches; i++)
4397 if (! switches[i].valid)
4398 error ("unrecognized option `-%s'", switches[i].part1);
4400 /* Obey some of the options. */
4402 if (print_search_dirs)
4404 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4405 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4406 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4410 if (print_file_name)
4412 printf ("%s\n", find_file (print_file_name));
4416 if (print_prog_name)
4418 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4419 printf ("%s\n", (newname ? newname : print_prog_name));
4423 if (print_multi_lib)
4425 print_multilib_info ();
4429 if (print_multi_directory)
4431 if (multilib_dir == NULL)
4434 printf ("%s\n", multilib_dir);
4440 if (! strcmp (version_string, compiler_version))
4441 fprintf (stderr, "gcc version %s\n", version_string);
4443 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4444 version_string, compiler_version);
4451 fatal ("No input files");
4453 /* Make a place to record the compiler output file names
4454 that correspond to the input files. */
4456 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4457 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4459 /* Record which files were specified explicitly as link input. */
4461 explicit_link_files = xmalloc (n_infiles);
4462 bzero (explicit_link_files, n_infiles);
4464 for (i = 0; i < n_infiles; i++)
4466 register struct compiler *cp = 0;
4467 int this_file_error = 0;
4469 /* Tell do_spec what to substitute for %i. */
4471 input_filename = infiles[i].name;
4472 input_filename_length = strlen (input_filename);
4473 input_file_number = i;
4475 /* Use the same thing in %o, unless cp->spec says otherwise. */
4477 outfiles[i] = input_filename;
4479 /* Figure out which compiler from the file's suffix. */
4481 cp = lookup_compiler (infiles[i].name, input_filename_length,
4482 infiles[i].language);
4486 /* Ok, we found an applicable compiler. Run its spec. */
4487 /* First say how much of input_filename to substitute for %b */
4491 input_basename = input_filename;
4492 for (p = input_filename; *p; p++)
4493 if (*p == '/' || *p == DIR_SEPARATOR)
4494 input_basename = p + 1;
4496 /* Find a suffix starting with the last period,
4497 and set basename_length to exclude that suffix. */
4498 basename_length = strlen (input_basename);
4499 p = input_basename + basename_length;
4500 while (p != input_basename && *p != '.') --p;
4501 if (*p == '.' && p != input_basename)
4503 basename_length = p - input_basename;
4504 input_suffix = p + 1;
4510 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4512 len += strlen (cp->spec[j]);
4514 p = (char *) xmalloc (len + 1);
4517 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4520 strcpy (p + len, cp->spec[j]);
4521 len += strlen (cp->spec[j]);
4524 value = do_spec (p);
4527 this_file_error = 1;
4530 /* If this file's name does not contain a recognized suffix,
4531 record it as explicit linker input. */
4534 explicit_link_files[i] = 1;
4536 /* Clear the delete-on-failure queue, deleting the files in it
4537 if this compilation failed. */
4539 if (this_file_error)
4541 delete_failure_queue ();
4544 /* If this compilation succeeded, don't delete those files later. */
4545 clear_failure_queue ();
4548 /* Run ld to link all the compiler output files. */
4550 if (error_count == 0)
4552 int tmp = execution_count;
4556 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4558 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4559 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4561 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4563 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4564 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4567 for (i = 0; i < n_switches; i++)
4571 obstack_grow (&collect_obstack, " ", 1);
4574 obstack_grow (&collect_obstack, "-", 1);
4575 obstack_grow (&collect_obstack, switches[i].part1,
4576 strlen (switches[i].part1));
4578 for (args = switches[i].args; args && *args; args++)
4580 obstack_grow (&collect_obstack, " ", 1);
4581 obstack_grow (&collect_obstack, *args, strlen (*args));
4584 obstack_grow (&collect_obstack, "\0", 1);
4585 putenv (obstack_finish (&collect_obstack));
4587 value = do_spec (link_command_spec);
4590 linker_was_run = (tmp != execution_count);
4593 /* Warn if a -B option was specified but the prefix was never used. */
4594 unused_prefix_warnings (&exec_prefixes);
4595 unused_prefix_warnings (&startfile_prefixes);
4597 /* If options said don't run linker,
4598 complain about input files to be given to the linker. */
4600 if (! linker_was_run && error_count == 0)
4601 for (i = 0; i < n_infiles; i++)
4602 if (explicit_link_files[i])
4603 error ("%s: linker input file unused since linking not done",
4606 /* Delete some or all of the temporary files we made. */
4609 delete_failure_queue ();
4610 delete_temp_files ();
4612 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4617 /* Find the proper compilation spec for the file name NAME,
4618 whose length is LENGTH. LANGUAGE is the specified language,
4619 or 0 if none specified. */
4621 static struct compiler *
4622 lookup_compiler (name, length, language)
4627 struct compiler *cp;
4629 /* Look for the language, if one is spec'd. */
4632 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4636 if (cp->suffix[0] == '@'
4637 && !strcmp (cp->suffix + 1, language))
4641 error ("language %s not recognized", language);
4644 /* Look for a suffix. */
4645 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4647 if (/* The suffix `-' matches only the file name `-'. */
4648 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4650 (strlen (cp->suffix) < length
4651 /* See if the suffix matches the end of NAME. */
4653 && (!strcmp (cp->suffix,
4654 name + length - strlen (cp->suffix))
4655 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4656 && !strcasecmp (cp->suffix,
4657 name + length - strlen (cp->suffix)))))
4659 && !strcmp (cp->suffix,
4660 name + length - strlen (cp->suffix))))
4663 if (cp->spec[0][0] == '@')
4665 struct compiler *new;
4666 /* An alias entry maps a suffix to a language.
4667 Search for the language; pass 0 for NAME and LENGTH
4668 to avoid infinite recursion if language not found.
4669 Construct the new compiler spec. */
4670 language = cp->spec[0] + 1;
4671 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4672 new->suffix = cp->suffix;
4673 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4674 (char *) new->spec, sizeof new->spec);
4677 /* A non-alias entry: return it. */
4689 register char *value = (char *) malloc (size);
4691 fatal ("virtual memory exhausted");
4696 xrealloc (ptr, size)
4700 register char *value = (char *) realloc (ptr, size);
4702 fatal ("virtual memory exhausted");
4706 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4712 int len1 = strlen (s1);
4713 int len2 = strlen (s2);
4714 char *result = xmalloc (len1 + len2 + 1);
4716 strcpy (result, s1);
4717 strcpy (result + len1, s2);
4718 *(result + len1 + len2) = 0;
4724 concat3 (s1, s2, s3)
4727 return concat (concat (s1, s2), s3);
4731 concat4 (s1, s2, s3, s4)
4732 char *s1, *s2, *s3, *s4;
4734 return concat (concat (s1, s2), concat (s3, s4));
4738 concat6 (s1, s2, s3, s4, s5, s6)
4739 char *s1, *s2, *s3, *s4, *s5, *s6;
4741 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4745 save_string (s, len)
4749 register char *result = xmalloc (len + 1);
4751 bcopy (s, result, len);
4757 pfatal_with_name (name)
4760 fatal ("%s: %s", name, my_strerror (errno));
4764 perror_with_name (name)
4767 error ("%s: %s", name, my_strerror (errno));
4774 error ("installation problem, cannot exec `%s': %s",
4775 name, my_strerror (errno));
4778 /* More 'friendly' abort that prints the line and file.
4779 config.h can #define abort fancy_abort if you like that sort of thing. */
4784 fatal ("Internal gcc abort.");
4789 /* Output an error message and exit */
4792 fatal VPROTO((char *format, ...))
4799 VA_START (ap, format);
4802 format = va_arg (ap, char*);
4805 fprintf (stderr, "%s: ", programname);
4806 vfprintf (stderr, format, ap);
4808 fprintf (stderr, "\n");
4809 delete_temp_files ();
4814 error VPROTO((char *format, ...))
4821 VA_START (ap, format);
4824 format = va_arg (ap, char*);
4827 fprintf (stderr, "%s: ", programname);
4828 vfprintf (stderr, format, ap);
4831 fprintf (stderr, "\n");
4834 #else /* not HAVE_VPRINTF */
4837 fatal (msg, arg1, arg2)
4838 char *msg, *arg1, *arg2;
4840 error (msg, arg1, arg2);
4841 delete_temp_files ();
4846 error (msg, arg1, arg2)
4847 char *msg, *arg1, *arg2;
4849 fprintf (stderr, "%s: ", programname);
4850 fprintf (stderr, msg, arg1, arg2);
4851 fprintf (stderr, "\n");
4854 #endif /* not HAVE_VPRINTF */
4858 validate_all_switches ()
4860 struct compiler *comp;
4863 struct spec_list *spec;
4865 for (comp = compilers; comp->spec[0]; comp++)
4868 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4872 if (c == '%' && *p == '{')
4873 /* We have a switch spec. */
4874 validate_switches (p + 1);
4878 /* look through the linked list of extra specs read from the specs file */
4879 for (spec = specs; spec ; spec = spec->next)
4883 if (c == '%' && *p == '{')
4884 /* We have a switch spec. */
4885 validate_switches (p + 1);
4888 p = link_command_spec;
4890 if (c == '%' && *p == '{')
4891 /* We have a switch spec. */
4892 validate_switches (p + 1);
4894 /* Now notice switches mentioned in the machine-specific specs. */
4898 if (c == '%' && *p == '{')
4899 /* We have a switch spec. */
4900 validate_switches (p + 1);
4904 if (c == '%' && *p == '{')
4905 /* We have a switch spec. */
4906 validate_switches (p + 1);
4910 if (c == '%' && *p == '{')
4911 /* We have a switch spec. */
4912 validate_switches (p + 1);
4914 p = signed_char_spec;
4916 if (c == '%' && *p == '{')
4917 /* We have a switch spec. */
4918 validate_switches (p + 1);
4922 if (c == '%' && *p == '{')
4923 /* We have a switch spec. */
4924 validate_switches (p + 1);
4928 if (c == '%' && *p == '{')
4929 /* We have a switch spec. */
4930 validate_switches (p + 1);
4934 if (c == '%' && *p == '{')
4935 /* We have a switch spec. */
4936 validate_switches (p + 1);
4940 if (c == '%' && *p == '{')
4941 /* We have a switch spec. */
4942 validate_switches (p + 1);
4946 if (c == '%' && *p == '{')
4947 /* We have a switch spec. */
4948 validate_switches (p + 1);
4952 if (c == '%' && *p == '{')
4953 /* We have a switch spec. */
4954 validate_switches (p + 1);
4957 /* Look at the switch-name that comes after START
4958 and mark as valid all supplied switches that match it. */
4961 validate_switches (start)
4964 register char *p = start;
4979 while (*p != ':' && *p != '}') p++;
4983 else if (p[-1] == '*')
4985 /* Mark all matching switches as valid. */
4987 for (i = 0; i < n_switches; i++)
4988 if (!strncmp (switches[i].part1, filter, p - filter))
4989 switches[i].valid = 1;
4993 /* Mark an exact matching switch as valid. */
4994 for (i = 0; i < n_switches; i++)
4996 if (!strncmp (switches[i].part1, filter, p - filter)
4997 && switches[i].part1[p - filter] == 0)
4998 switches[i].valid = 1;
5003 /* Check whether a particular argument was used. */
5012 for (i = 0; i < n_switches; i++)
5013 if (! strncmp (switches[i].part1, p, len)
5014 && strlen (switches[i].part1) == len)
5019 /* Check whether a particular argument is a default argument. */
5021 #ifndef MULTILIB_DEFAULTS
5022 #define MULTILIB_DEFAULTS { NULL }
5025 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
5028 default_arg (p, len)
5032 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
5035 for (i = 0; i < count; i++)
5036 if (multilib_defaults[i] != NULL
5037 && strncmp (multilib_defaults[i], p, len) == 0
5038 && multilib_defaults[i][len] == '\0')
5044 /* Work out the subdirectory to use based on the
5045 options. The format of multilib_select is a list of elements.
5046 Each element is a subdirectory name followed by a list of options
5047 followed by a semicolon. gcc will consider each line in turn. If
5048 none of the options beginning with an exclamation point are
5049 present, and all of the other options are present, that
5050 subdirectory will be used. */
5055 char *p = multilib_select;
5057 char *this_path, *this_arg;
5063 /* Ignore newlines. */
5070 /* Get the initial path. */
5078 this_path_len = p - this_path;
5080 /* Check the arguments. */
5095 while (*p != ' ' && *p != ';')
5102 if (*this_arg != '!')
5110 /* If this is a default argument, we can just ignore it.
5111 This is true even if this_arg begins with '!'. Beginning
5112 with '!' does not mean that this argument is necessarily
5113 inappropriate for this library: it merely means that
5114 there is a more specific library which uses this
5115 argument. If this argument is a default, we need not
5116 consider that more specific library. */
5117 if (! default_arg (this_arg, p - this_arg))
5119 ok = used_arg (this_arg, p - this_arg);
5130 if (this_path_len != 1
5131 || this_path[0] != '.')
5133 multilib_dir = xmalloc (this_path_len + 1);
5134 strncpy (multilib_dir, this_path, this_path_len);
5135 multilib_dir[this_path_len] = '\0';
5144 /* Print out the multiple library subdirectory selection
5145 information. This prints out a series of lines. Each line looks
5146 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5147 required. Only the desired options are printed out, the negative
5148 matches. The options are print without a leading dash. There are
5149 no spaces to make it easy to use the information in the shell.
5150 Each subdirectory is printed only once. This assumes the ordering
5151 generated by the genmultilib script. */
5154 print_multilib_info ()
5156 char *p = multilib_select;
5157 char *last_path = 0, *this_path;
5159 int last_path_len = 0;
5163 /* Ignore newlines. */
5170 /* Get the initial path. */
5179 /* If this is a duplicate, skip it. */
5180 skip = (last_path != 0 && p - this_path == last_path_len
5181 && ! strncmp (last_path, this_path, last_path_len));
5183 last_path = this_path;
5184 last_path_len = p - this_path;
5186 /* If this directory requires any default arguments, we can skip
5187 it. We will already have printed a directory identical to
5188 this one which does not require that default argument. */
5206 while (*q != ' ' && *q != ';')
5214 && default_arg (arg, q - arg))
5229 for (p1 = last_path; p1 < p; p1++)
5248 use_arg = *p != '!';
5253 while (*p != ' ' && *p != ';')