1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
34 #include <sys/types.h>
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 ();
179 #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];
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 error ("file path prefix `%s' never used",
1923 /* Prevent duplicate warnings. */
1924 *pl->used_flag_ptr = 1;
1930 /* Get rid of all prefixes built up so far in *PLISTP. */
1933 free_path_prefix (pprefix)
1934 struct path_prefix *pprefix;
1936 struct prefix_list *pl = pprefix->plist;
1937 struct prefix_list *temp;
1943 free (temp->prefix);
1944 free ((char *) temp);
1946 pprefix->plist = (struct prefix_list *) 0;
1949 /* stdin file number. */
1950 #define STDIN_FILE_NO 0
1952 /* stdout file number. */
1953 #define STDOUT_FILE_NO 1
1955 /* value of `pipe': port index for reading. */
1958 /* value of `pipe': port index for writing. */
1959 #define WRITE_PORT 1
1961 /* Pipe waiting from last process, to be used as input for the next one.
1962 Value is STDIN_FILE_NO if no pipe is waiting
1963 (i.e. the next command is the first of a group). */
1965 static int last_pipe_input;
1967 /* Fork one piped subcommand. FUNC is the system call to use
1968 (either execv or execvp). ARGV is the arg vector to use.
1969 NOT_LAST is nonzero if this is not the last subcommand
1970 (i.e. its output should be piped to the next one.) */
1974 #include <process.h>
1976 pexecute (search_flag, program, argv, not_last)
1983 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1987 int i, el = search_flag ? 0 : 4;
1989 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1990 rf = scmd + strlen(program) + 2 + el;
1991 sprintf (scmd, "%s%s @%s.gp", program,
1992 (search_flag ? "" : ".exe"), temp_filename);
1993 argfile = fopen (rf, "w");
1995 pfatal_with_name (rf);
1997 for (i=1; argv[i]; i++)
2000 for (cp = argv[i]; *cp; cp++)
2002 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2003 fputc ('\\', argfile);
2004 fputc (*cp, argfile);
2006 fputc ('\n', argfile);
2017 perror_exec (program);
2018 return MIN_FATAL_STATUS << 8;
2025 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2028 pexecute (search_flag, program, argv, not_last)
2034 int (*func)() = (search_flag ? execv : execvp);
2037 int input_desc = last_pipe_input;
2038 int output_desc = STDOUT_FILE_NO;
2039 int retries, sleep_interval;
2041 /* If this isn't the last process, make a pipe for its output,
2042 and record it as waiting to be the input to the next process. */
2046 if (pipe (pdes) < 0)
2047 pfatal_with_name ("pipe");
2048 output_desc = pdes[WRITE_PORT];
2049 last_pipe_input = pdes[READ_PORT];
2052 last_pipe_input = STDIN_FILE_NO;
2054 /* Fork a subprocess; wait and retry if it fails. */
2056 for (retries = 0; retries < 4; retries++)
2061 sleep (sleep_interval);
2062 sleep_interval *= 2;
2069 pfatal_with_name ("fork");
2071 pfatal_with_name ("vfork");
2077 /* Move the input and output pipes into place, if nec. */
2078 if (input_desc != STDIN_FILE_NO)
2080 close (STDIN_FILE_NO);
2084 if (output_desc != STDOUT_FILE_NO)
2086 close (STDOUT_FILE_NO);
2088 close (output_desc);
2091 /* Close the parent's descs that aren't wanted here. */
2092 if (last_pipe_input != STDIN_FILE_NO)
2093 close (last_pipe_input);
2095 /* Exec the program. */
2096 (*func) (program, argv);
2097 perror_exec (program);
2103 /* In the parent, after forking.
2104 Close the descriptors that we made for this child. */
2105 if (input_desc != STDIN_FILE_NO)
2107 if (output_desc != STDOUT_FILE_NO)
2108 close (output_desc);
2110 /* Return child's process number. */
2115 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2120 pexecute (search_flag, program, argv, not_last)
2126 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2133 pexecute (search_flag, program, argv, not_last)
2139 return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
2144 /* Execute the command specified by the arguments on the current line of spec.
2145 When using pipes, this includes several piped-together commands
2146 with `|' between them.
2148 Return 0 if successful, -1 if failed. */
2154 int n_commands; /* # of command. */
2158 char *prog; /* program name. */
2159 char **argv; /* vector of args. */
2160 int pid; /* pid of process for this command. */
2163 struct command *commands; /* each command buffer with above info. */
2165 /* Count # of piped commands. */
2166 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2167 if (strcmp (argbuf[i], "|") == 0)
2170 /* Get storage for each command. */
2172 = (struct command *) alloca (n_commands * sizeof (struct command));
2174 /* Split argbuf into its separate piped processes,
2175 and record info about each one.
2176 Also search for the programs that are to be run. */
2178 commands[0].prog = argbuf[0]; /* first command. */
2179 commands[0].argv = &argbuf[0];
2180 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2182 commands[0].argv[0] = string;
2184 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2185 if (strcmp (argbuf[i], "|") == 0)
2186 { /* each command. */
2188 fatal ("-pipe not supported under MS-DOS");
2190 argbuf[i] = 0; /* termination of command args. */
2191 commands[n_commands].prog = argbuf[i + 1];
2192 commands[n_commands].argv = &argbuf[i + 1];
2193 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2195 commands[n_commands].argv[0] = string;
2199 argbuf[argbuf_index] = 0;
2201 /* If -v, print what we are about to do, and maybe query. */
2205 /* Print each piped command as a separate line. */
2206 for (i = 0; i < n_commands ; i++)
2210 for (j = commands[i].argv; *j; j++)
2211 fprintf (stderr, " %s", *j);
2213 /* Print a pipe symbol after all but the last command. */
2214 if (i + 1 != n_commands)
2215 fprintf (stderr, " |");
2216 fprintf (stderr, "\n");
2220 fprintf (stderr, "\nGo ahead? (y or n) ");
2224 while (getchar () != '\n') ;
2225 if (i != 'y' && i != 'Y')
2230 /* Run each piped subprocess. */
2232 last_pipe_input = STDIN_FILE_NO;
2233 for (i = 0; i < n_commands; i++)
2235 char *string = commands[i].argv[0];
2237 commands[i].pid = pexecute (string != commands[i].prog,
2238 string, commands[i].argv,
2239 i + 1 < n_commands);
2241 if (string != commands[i].prog)
2247 /* Wait for all the subprocesses to finish.
2248 We don't care what order they finish in;
2249 we know that N_COMMANDS waits will get them all.
2250 Ignore subprocesses that we don't know about,
2251 since they can be spawned by the process that exec'ed us. */
2256 for (i = 0; i < n_commands; )
2263 status = pid = commands[i].pid;
2266 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2268 pid = wait (&status);
2274 for (j = 0; j < n_commands; j++)
2275 if (commands[j].pid == pid)
2280 if (WIFSIGNALED (status))
2282 fatal ("Internal compiler error: program %s got fatal signal %d",
2283 commands[j].prog, WTERMSIG (status));
2287 else if (WIFEXITED (status)
2288 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2298 /* Find all the switches given to us
2299 and make a vector describing them.
2300 The elements of the vector are strings, one per switch given.
2301 If a switch uses following arguments, then the `part1' field
2302 is the switch itself and the `args' field
2303 is a null-terminated vector containing the following arguments.
2304 The `live_cond' field is 1 if the switch is true in a conditional spec,
2305 -1 if false (overridden by a later switch), and is initialized to zero.
2306 The `valid' field is nonzero if any spec has looked at this switch;
2307 if it remains zero at the end of the run, it must be meaningless. */
2317 static struct switchstr *switches;
2319 static int n_switches;
2327 /* Also a vector of input files specified. */
2329 static struct infile *infiles;
2331 static int n_infiles;
2333 /* And a vector of corresponding output files is made up later. */
2335 static char **outfiles;
2337 /* Create the vector `switches' and its contents.
2338 Store its length in `n_switches'. */
2341 process_command (argc, argv)
2347 char *spec_lang = 0;
2348 int last_language_n_infiles;
2350 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2355 /* Figure compiler version from version string. */
2357 compiler_version = save_string (version_string, strlen (version_string));
2358 for (temp = compiler_version; *temp; ++temp)
2367 /* Set up the default search paths. */
2369 if (gcc_exec_prefix)
2371 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2372 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2375 /* COMPILER_PATH and LIBRARY_PATH have values
2376 that are lists of directory names with colons. */
2378 temp = getenv ("COMPILER_PATH");
2381 char *startp, *endp;
2382 char *nstore = (char *) alloca (strlen (temp) + 3);
2384 startp = endp = temp;
2387 if (*endp == PATH_SEPARATOR || *endp == 0)
2389 strncpy (nstore, startp, endp-startp);
2391 strcpy (nstore, concat (".", dir_separator_str));
2392 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2394 nstore[endp-startp] = DIR_SEPARATOR;
2395 nstore[endp-startp+1] = 0;
2398 nstore[endp-startp] = 0;
2399 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2402 endp = startp = endp + 1;
2409 temp = getenv ("LIBRARY_PATH");
2410 if (temp && ! cross_compile)
2412 char *startp, *endp;
2413 char *nstore = (char *) alloca (strlen (temp) + 3);
2415 startp = endp = temp;
2418 if (*endp == PATH_SEPARATOR || *endp == 0)
2420 strncpy (nstore, startp, endp-startp);
2422 strcpy (nstore, concat (".", dir_separator_str));
2423 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2425 nstore[endp-startp] = DIR_SEPARATOR;
2426 nstore[endp-startp+1] = 0;
2429 nstore[endp-startp] = 0;
2430 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2433 endp = startp = endp + 1;
2440 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2441 temp = getenv ("LPATH");
2442 if (temp && ! cross_compile)
2444 char *startp, *endp;
2445 char *nstore = (char *) alloca (strlen (temp) + 3);
2447 startp = endp = temp;
2450 if (*endp == PATH_SEPARATOR || *endp == 0)
2452 strncpy (nstore, startp, endp-startp);
2454 strcpy (nstore, concat (".", dir_separator_str));
2455 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2457 nstore[endp-startp] = DIR_SEPARATOR;
2458 nstore[endp-startp+1] = 0;
2461 nstore[endp-startp] = 0;
2462 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2465 endp = startp = endp + 1;
2472 /* Convert new-style -- options to old-style. */
2473 translate_options (&argc, &argv);
2475 /* Scan argv twice. Here, the first time, just count how many switches
2476 there will be in their vector, and how many input files in theirs.
2477 Here we also parse the switches that cc itself uses (e.g. -v). */
2479 for (i = 1; i < argc; i++)
2481 if (! strcmp (argv[i], "-dumpspecs"))
2483 printf ("*asm:\n%s\n\n", asm_spec);
2484 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2485 printf ("*cpp:\n%s\n\n", cpp_spec);
2486 printf ("*cc1:\n%s\n\n", cc1_spec);
2487 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2488 printf ("*endfile:\n%s\n\n", endfile_spec);
2489 printf ("*link:\n%s\n\n", link_spec);
2490 printf ("*lib:\n%s\n\n", lib_spec);
2491 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2492 printf ("*startfile:\n%s\n\n", startfile_spec);
2493 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2494 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2495 printf ("*predefines:\n%s\n\n", cpp_predefines);
2496 printf ("*cross_compile:\n%d\n\n", cross_compile);
2497 printf ("*multilib:\n%s\n\n", multilib_select);
2501 else if (! strcmp (argv[i], "-dumpversion"))
2503 printf ("%s\n", version_string);
2506 else if (! strcmp (argv[i], "-dumpmachine"))
2508 printf ("%s\n", spec_machine);
2511 else if (! strcmp (argv[i], "-print-search-dirs"))
2512 print_search_dirs = 1;
2513 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2514 print_file_name = "libgcc.a";
2515 else if (! strncmp (argv[i], "-print-file-name=", 17))
2516 print_file_name = argv[i] + 17;
2517 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2518 print_prog_name = argv[i] + 17;
2519 else if (! strcmp (argv[i], "-print-multi-lib"))
2520 print_multi_lib = 1;
2521 else if (! strcmp (argv[i], "-print-multi-directory"))
2522 print_multi_directory = 1;
2523 else if (! strncmp (argv[i], "-Wa,", 4))
2526 /* Pass the rest of this option to the assembler. */
2528 n_assembler_options++;
2529 if (!assembler_options)
2531 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2534 = (char **) xrealloc (assembler_options,
2535 n_assembler_options * sizeof (char **));
2537 /* Split the argument at commas. */
2539 for (j = 4; argv[i][j]; j++)
2540 if (argv[i][j] == ',')
2542 assembler_options[n_assembler_options - 1]
2543 = save_string (argv[i] + prev, j - prev);
2544 n_assembler_options++;
2546 = (char **) xrealloc (assembler_options,
2547 n_assembler_options * sizeof (char **));
2550 /* Record the part after the last comma. */
2551 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2553 else if (! strncmp (argv[i], "-Wp,", 4))
2556 /* Pass the rest of this option to the preprocessor. */
2558 n_preprocessor_options++;
2559 if (!preprocessor_options)
2560 preprocessor_options
2561 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2563 preprocessor_options
2564 = (char **) xrealloc (preprocessor_options,
2565 n_preprocessor_options * sizeof (char **));
2567 /* Split the argument at commas. */
2569 for (j = 4; argv[i][j]; j++)
2570 if (argv[i][j] == ',')
2572 preprocessor_options[n_preprocessor_options - 1]
2573 = save_string (argv[i] + prev, j - prev);
2574 n_preprocessor_options++;
2575 preprocessor_options
2576 = (char **) xrealloc (preprocessor_options,
2577 n_preprocessor_options * sizeof (char **));
2580 /* Record the part after the last comma. */
2581 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2583 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2584 /* The +e options to the C++ front-end. */
2586 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2589 /* Split the argument at commas. */
2590 for (j = 3; argv[i][j]; j++)
2591 n_infiles += (argv[i][j] == ',');
2593 else if (strcmp (argv[i], "-Xlinker") == 0)
2596 fatal ("argument to `-Xlinker' is missing");
2601 else if (strncmp (argv[i], "-l", 2) == 0)
2603 else if (argv[i][0] == '-' && argv[i][1] != 0)
2605 register char *p = &argv[i][1];
2606 register int c = *p;
2611 if (p[1] == 0 && i + 1 == argc)
2612 fatal ("argument to `-b' is missing");
2614 spec_machine = argv[++i];
2616 spec_machine = p + 1;
2621 int *temp = (int *) xmalloc (sizeof (int));
2623 if (p[1] == 0 && i + 1 == argc)
2624 fatal ("argument to `-B' is missing");
2629 add_prefix (&exec_prefixes, value, 1, 0, temp);
2630 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2631 add_prefix (&include_prefixes, concat (value, "include"),
2634 /* As a kludge, if the arg is "[foo/]stageN/", just add
2635 "[foo/]include" to the include prefix. */
2637 int len = strlen (value);
2640 && (value[len - 8] == '/'
2641 || value[len - 8] == DIR_SEPARATOR)))
2642 && strncmp (value + len - 7, "stage", 5) == 0
2643 && isdigit (value[len - 2])
2644 && (value[len - 1] == '/'
2645 || value[len - 1] == DIR_SEPARATOR))
2648 add_prefix (&include_prefixes, "include", 1, 0, 0);
2651 char *string = xmalloc (len + 1);
2652 strncpy (string, value, len-7);
2653 strcat (string, "include");
2654 add_prefix (&include_prefixes, string, 1, 0, 0);
2661 case 'v': /* Print our subcommands and print versions. */
2663 /* If they do anything other than exactly `-v', don't set
2664 verbose_flag; rather, continue on to give the error. */
2671 if (p[1] == 0 && i + 1 == argc)
2672 fatal ("argument to `-V' is missing");
2674 spec_version = argv[++i];
2676 spec_version = p + 1;
2677 compiler_version = spec_version;
2681 if (!strcmp (p, "save-temps"))
2683 save_temps_flag = 1;
2690 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2691 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2692 else if (WORD_SWITCH_TAKES_ARG (p))
2693 i += WORD_SWITCH_TAKES_ARG (p);
2700 /* Set up the search paths before we go looking for config files. */
2702 /* These come before the md prefixes so that we will find gcc's subcommands
2703 (such as cpp) rather than those of the host system. */
2704 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2705 as well as trying the machine and the version. */
2707 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2708 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2711 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2712 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2714 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2717 /* If tooldir is relative, base it on exec_prefixes. A relative
2718 tooldir lets us move the installed tree as a unit.
2720 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2721 directories, so that we can search both the user specified directory
2722 and the standard place. */
2724 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2726 if (gcc_exec_prefix)
2728 char *gcc_exec_tooldir_prefix
2729 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2730 spec_version, dir_separator_str, tooldir_prefix);
2732 add_prefix (&exec_prefixes,
2733 concat3 (gcc_exec_tooldir_prefix, "bin",
2736 add_prefix (&startfile_prefixes,
2737 concat3 (gcc_exec_tooldir_prefix, "lib",
2742 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2743 dir_separator_str, spec_version,
2744 dir_separator_str, tooldir_prefix);
2747 add_prefix (&exec_prefixes,
2748 concat3 (tooldir_prefix, "bin", dir_separator_str),
2750 add_prefix (&startfile_prefixes,
2751 concat3 (tooldir_prefix, "lib", dir_separator_str),
2754 /* More prefixes are enabled in main, after we read the specs file
2755 and determine whether this is cross-compilation or not. */
2758 /* Then create the space for the vectors and scan again. */
2760 switches = ((struct switchstr *)
2761 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2762 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2765 last_language_n_infiles = -1;
2767 /* This, time, copy the text of each switch and store a pointer
2768 to the copy in the vector of switches.
2769 Store all the infiles in their vector. */
2771 for (i = 1; i < argc; i++)
2773 /* Just skip the switches that were handled by the preceding loop. */
2774 if (! strncmp (argv[i], "-Wa,", 4))
2776 else if (! strncmp (argv[i], "-Wp,", 4))
2778 else if (! strcmp (argv[i], "-print-search-dirs"))
2780 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2782 else if (! strncmp (argv[i], "-print-file-name=", 17))
2784 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2786 else if (! strcmp (argv[i], "-print-multi-lib"))
2788 else if (! strcmp (argv[i], "-print-multi-directory"))
2790 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2792 /* Compensate for the +e options to the C++ front-end;
2793 they're there simply for cfront call-compatibility. We do
2794 some magic in default_compilers to pass them down properly.
2795 Note we deliberately start at the `+' here, to avoid passing
2796 -e0 or -e1 down into the linker. */
2797 switches[n_switches].part1 = &argv[i][0];
2798 switches[n_switches].args = 0;
2799 switches[n_switches].live_cond = 0;
2800 switches[n_switches].valid = 0;
2803 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2806 /* Split the argument at commas. */
2808 for (j = 4; argv[i][j]; j++)
2809 if (argv[i][j] == ',')
2811 infiles[n_infiles].language = 0;
2812 infiles[n_infiles++].name
2813 = save_string (argv[i] + prev, j - prev);
2816 /* Record the part after the last comma. */
2817 infiles[n_infiles].language = 0;
2818 infiles[n_infiles++].name = argv[i] + prev;
2820 else if (strcmp (argv[i], "-Xlinker") == 0)
2822 infiles[n_infiles].language = 0;
2823 infiles[n_infiles++].name = argv[++i];
2825 else if (strncmp (argv[i], "-l", 2) == 0)
2827 infiles[n_infiles].language = 0;
2828 infiles[n_infiles++].name = argv[i];
2830 else if (argv[i][0] == '-' && argv[i][1] != 0)
2832 register char *p = &argv[i][1];
2833 register int c = *p;
2835 if (c == 'B' || c == 'b' || c == 'V')
2837 /* Skip a separate arg, if any. */
2844 if (p[1] == 0 && i + 1 == argc)
2845 fatal ("argument to `-x' is missing");
2847 spec_lang = argv[++i];
2850 if (! strcmp (spec_lang, "none"))
2851 /* Suppress the warning if -xnone comes after the last input
2852 file, because alternate command interfaces like g++ might
2853 find it useful to place -xnone after each input file. */
2856 last_language_n_infiles = n_infiles;
2859 switches[n_switches].part1 = p;
2860 /* Deal with option arguments in separate argv elements. */
2861 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2862 || WORD_SWITCH_TAKES_ARG (p))
2865 int n_args = WORD_SWITCH_TAKES_ARG (p);
2869 /* Count only the option arguments in separate argv elements. */
2870 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2872 if (i + n_args >= argc)
2873 fatal ("argument to `-%s' is missing", p);
2874 switches[n_switches].args
2875 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2877 switches[n_switches].args[j++] = argv[++i];
2878 /* Null-terminate the vector. */
2879 switches[n_switches].args[j] = 0;
2881 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2883 /* On some systems, ld cannot handle -o or -L without space.
2884 So split the -o or -L from its argument. */
2885 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2886 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2887 switches[n_switches].args[0] = xmalloc (strlen (p));
2888 strcpy (switches[n_switches].args[0], &p[1]);
2889 switches[n_switches].args[1] = 0;
2892 switches[n_switches].args = 0;
2894 switches[n_switches].live_cond = 0;
2895 switches[n_switches].valid = 0;
2896 /* This is always valid, since gcc.c itself understands it. */
2897 if (!strcmp (p, "save-temps"))
2898 switches[n_switches].valid = 1;
2903 #ifdef HAVE_OBJECT_SUFFIX
2904 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2905 if (strlen (argv[i]) > 2
2906 && argv[i][strlen (argv[i]) - 2] == '.'
2907 && argv[i][strlen (argv[i]) - 1] == 'o')
2911 for (j = 0; j < strlen (argv[i]) - 2; j++)
2912 obstack_1grow (&obstack, argv[i][j]);
2914 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2915 obstack_1grow (&obstack, 0);
2916 argv[i] = obstack_finish (&obstack);
2920 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2922 perror_with_name (argv[i]);
2927 infiles[n_infiles].language = spec_lang;
2928 infiles[n_infiles++].name = argv[i];
2933 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2934 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2936 switches[n_switches].part1 = 0;
2937 infiles[n_infiles].name = 0;
2940 /* Process a spec string, accumulating and running commands. */
2942 /* These variables describe the input file name.
2943 input_file_number is the index on outfiles of this file,
2944 so that the output file name can be stored for later use by %o.
2945 input_basename is the start of the part of the input file
2946 sans all directory names, and basename_length is the number
2947 of characters starting there excluding the suffix .c or whatever. */
2949 static char *input_filename;
2950 static int input_file_number;
2951 static int input_filename_length;
2952 static int basename_length;
2953 static char *input_basename;
2954 static char *input_suffix;
2956 /* These are variables used within do_spec and do_spec_1. */
2958 /* Nonzero if an arg has been started and not yet terminated
2959 (with space, tab or newline). */
2960 static int arg_going;
2962 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2963 is a temporary file name. */
2964 static int delete_this_arg;
2966 /* Nonzero means %w has been seen; the next arg to be terminated
2967 is the output file name of this compilation. */
2968 static int this_is_output_file;
2970 /* Nonzero means %s has been seen; the next arg to be terminated
2971 is the name of a library file and we should try the standard
2972 search dirs for it. */
2973 static int this_is_library_file;
2975 /* Nonzero means that the input of this command is coming from a pipe. */
2976 static int input_from_pipe;
2978 /* Process the spec SPEC and run the commands specified therein.
2979 Returns 0 if the spec is successfully processed; -1 if failed. */
2989 delete_this_arg = 0;
2990 this_is_output_file = 0;
2991 this_is_library_file = 0;
2992 input_from_pipe = 0;
2994 value = do_spec_1 (spec, 0, NULL_PTR);
2996 /* Force out any unfinished command.
2997 If -pipe, this forces out the last command if it ended in `|'. */
3000 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3003 if (argbuf_index > 0)
3010 /* Process the sub-spec SPEC as a portion of a larger spec.
3011 This is like processing a whole spec except that we do
3012 not initialize at the beginning and we do not supply a
3013 newline by default at the end.
3014 INSWITCH nonzero means don't process %-sequences in SPEC;
3015 in this case, % is treated as an ordinary character.
3016 This is used while substituting switches.
3017 INSWITCH nonzero also causes SPC not to terminate an argument.
3019 Value is zero unless a line was finished
3020 and the command on that line reported an error. */
3023 do_spec_1 (spec, inswitch, soft_matched_part)
3026 char *soft_matched_part;
3028 register char *p = spec;
3035 /* If substituting a switch, treat all chars like letters.
3036 Otherwise, NL, SPC, TAB and % are special. */
3037 switch (inswitch ? 'a' : c)
3040 /* End of line: finish any pending argument,
3041 then run the pending command if one has been started. */
3044 obstack_1grow (&obstack, 0);
3045 string = obstack_finish (&obstack);
3046 if (this_is_library_file)
3047 string = find_file (string);
3048 store_arg (string, delete_this_arg, this_is_output_file);
3049 if (this_is_output_file)
3050 outfiles[input_file_number] = string;
3054 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3056 for (i = 0; i < n_switches; i++)
3057 if (!strcmp (switches[i].part1, "pipe"))
3060 /* A `|' before the newline means use a pipe here,
3061 but only if -pipe was specified.
3062 Otherwise, execute now and don't pass the `|' as an arg. */
3065 input_from_pipe = 1;
3066 switches[i].valid = 1;
3073 if (argbuf_index > 0)
3079 /* Reinitialize for a new command, and for a new argument. */
3082 delete_this_arg = 0;
3083 this_is_output_file = 0;
3084 this_is_library_file = 0;
3085 input_from_pipe = 0;
3089 /* End any pending argument. */
3092 obstack_1grow (&obstack, 0);
3093 string = obstack_finish (&obstack);
3094 if (this_is_library_file)
3095 string = find_file (string);
3096 store_arg (string, delete_this_arg, this_is_output_file);
3097 if (this_is_output_file)
3098 outfiles[input_file_number] = string;
3102 obstack_1grow (&obstack, c);
3108 /* Space or tab ends an argument if one is pending. */
3111 obstack_1grow (&obstack, 0);
3112 string = obstack_finish (&obstack);
3113 if (this_is_library_file)
3114 string = find_file (string);
3115 store_arg (string, delete_this_arg, this_is_output_file);
3116 if (this_is_output_file)
3117 outfiles[input_file_number] = string;
3119 /* Reinitialize for a new argument. */
3121 delete_this_arg = 0;
3122 this_is_output_file = 0;
3123 this_is_library_file = 0;
3130 fatal ("Invalid specification! Bug in cc.");
3133 obstack_grow (&obstack, input_basename, basename_length);
3138 delete_this_arg = 2;
3141 /* Dump out the directories specified with LIBRARY_PATH,
3142 followed by the absolute directories
3143 that we search for startfiles. */
3146 struct prefix_list *pl = startfile_prefixes.plist;
3148 char *buffer = (char *) xmalloc (bufsize);
3151 for (; pl; pl = pl->next)
3153 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3154 /* Used on systems which record the specified -L dirs
3155 and use them to search for dynamic linking. */
3156 /* Relative directories always come from -B,
3157 and it is better not to use them for searching
3158 at run time. In particular, stage1 loses */
3159 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3162 /* Try subdirectory if there is one. */
3163 if (multilib_dir != NULL)
3167 if (strlen (pl->prefix) + strlen (machine_suffix)
3169 bufsize = (strlen (pl->prefix)
3170 + strlen (machine_suffix)) * 2 + 1;
3171 buffer = (char *) xrealloc (buffer, bufsize);
3172 strcpy (buffer, pl->prefix);
3173 strcat (buffer, machine_suffix);
3174 if (is_directory (buffer, multilib_dir, 1))
3176 do_spec_1 ("-L", 0, NULL_PTR);
3177 #ifdef SPACE_AFTER_L_OPTION
3178 do_spec_1 (" ", 0, NULL_PTR);
3180 do_spec_1 (buffer, 1, NULL_PTR);
3181 do_spec_1 (multilib_dir, 1, NULL_PTR);
3182 /* Make this a separate argument. */
3183 do_spec_1 (" ", 0, NULL_PTR);
3186 if (!pl->require_machine_suffix)
3188 if (is_directory (pl->prefix, multilib_dir, 1))
3190 do_spec_1 ("-L", 0, NULL_PTR);
3191 #ifdef SPACE_AFTER_L_OPTION
3192 do_spec_1 (" ", 0, NULL_PTR);
3194 do_spec_1 (pl->prefix, 1, NULL_PTR);
3195 do_spec_1 (multilib_dir, 1, NULL_PTR);
3196 /* Make this a separate argument. */
3197 do_spec_1 (" ", 0, NULL_PTR);
3203 if (is_directory (pl->prefix, machine_suffix, 1))
3205 do_spec_1 ("-L", 0, NULL_PTR);
3206 #ifdef SPACE_AFTER_L_OPTION
3207 do_spec_1 (" ", 0, NULL_PTR);
3209 do_spec_1 (pl->prefix, 1, NULL_PTR);
3210 /* Remove slash from machine_suffix. */
3211 if (strlen (machine_suffix) >= bufsize)
3212 bufsize = strlen (machine_suffix) * 2 + 1;
3213 buffer = (char *) xrealloc (buffer, bufsize);
3214 strcpy (buffer, machine_suffix);
3215 idx = strlen (buffer);
3216 if (buffer[idx - 1] == '/'
3217 || buffer[idx - 1] == DIR_SEPARATOR)
3218 buffer[idx - 1] = 0;
3219 do_spec_1 (buffer, 1, NULL_PTR);
3220 /* Make this a separate argument. */
3221 do_spec_1 (" ", 0, NULL_PTR);
3224 if (!pl->require_machine_suffix)
3226 if (is_directory (pl->prefix, "", 1))
3228 do_spec_1 ("-L", 0, NULL_PTR);
3229 #ifdef SPACE_AFTER_L_OPTION
3230 do_spec_1 (" ", 0, NULL_PTR);
3232 /* Remove slash from pl->prefix. */
3233 if (strlen (pl->prefix) >= bufsize)
3234 bufsize = strlen (pl->prefix) * 2 + 1;
3235 buffer = (char *) xrealloc (buffer, bufsize);
3236 strcpy (buffer, pl->prefix);
3237 idx = strlen (buffer);
3238 if (buffer[idx - 1] == '/'
3239 || buffer[idx - 1] == DIR_SEPARATOR)
3240 buffer[idx - 1] = 0;
3241 do_spec_1 (buffer, 1, NULL_PTR);
3242 /* Make this a separate argument. */
3243 do_spec_1 (" ", 0, NULL_PTR);
3252 /* {...:%efoo} means report an error with `foo' as error message
3253 and don't execute any more commands for this file. */
3257 while (*p != 0 && *p != '\n') p++;
3258 buf = (char *) alloca (p - q + 1);
3259 strncpy (buf, q, p - q);
3269 if (save_temps_flag)
3271 obstack_grow (&obstack, input_basename, basename_length);
3272 delete_this_arg = 0;
3276 #ifdef MKTEMP_EACH_FILE
3277 /* ??? This has a problem: the total number of
3278 values mktemp can return is limited.
3279 That matters for the names of object files.
3280 In 2.4, do something about that. */
3281 struct temp_name *t;
3283 while (*p == '.' || isalpha (*p)
3284 || (p[0] == '%' && p[1] == 'O'))
3287 /* See if we already have an association of %g/%u/%U and
3289 for (t = temp_names; t; t = t->next)
3290 if (t->length == p - suffix
3291 && strncmp (t->suffix, suffix, p - suffix) == 0
3292 && t->unique == (c != 'g'))
3295 /* Make a new association if needed. %u requires one. */
3296 if (t == 0 || c == 'u')
3300 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3301 t->next = temp_names;
3304 t->length = p - suffix;
3305 t->suffix = save_string (suffix, p - suffix);
3306 t->unique = (c != 'g');
3307 choose_temp_base ();
3308 t->filename = temp_filename;
3309 t->filename_length = temp_filename_length;
3312 obstack_grow (&obstack, t->filename, t->filename_length);
3313 delete_this_arg = 1;
3315 obstack_grow (&obstack, temp_filename, temp_filename_length);
3316 if (c == 'u' || c == 'U')
3322 sprintf (buff, "%d", unique);
3323 obstack_grow (&obstack, buff, strlen (buff));
3326 delete_this_arg = 1;
3332 obstack_grow (&obstack, input_filename, input_filename_length);
3338 struct prefix_list *pl = include_prefixes.plist;
3340 if (gcc_exec_prefix)
3342 do_spec_1 ("-iprefix", 1, NULL_PTR);
3343 /* Make this a separate argument. */
3344 do_spec_1 (" ", 0, NULL_PTR);
3345 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3346 do_spec_1 (" ", 0, NULL_PTR);
3349 for (; pl; pl = pl->next)
3351 do_spec_1 ("-isystem", 1, NULL_PTR);
3352 /* Make this a separate argument. */
3353 do_spec_1 (" ", 0, NULL_PTR);
3354 do_spec_1 (pl->prefix, 1, NULL_PTR);
3355 do_spec_1 (" ", 0, NULL_PTR);
3361 for (i = 0; i < n_infiles; i++)
3362 store_arg (outfiles[i], 0, 0);
3366 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3371 this_is_library_file = 1;
3375 this_is_output_file = 1;
3380 int index = argbuf_index;
3381 /* Handle the {...} following the %W. */
3384 p = handle_braces (p + 1);
3387 /* If any args were output, mark the last one for deletion
3389 if (argbuf_index != index)
3390 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3394 /* %x{OPTION} records OPTION for %X to output. */
3400 /* Skip past the option value and make a copy. */
3405 string = save_string (p1 + 1, p - p1 - 2);
3407 /* See if we already recorded this option. */
3408 for (i = 0; i < n_linker_options; i++)
3409 if (! strcmp (string, linker_options[i]))
3415 /* This option is new; add it. */
3417 if (!linker_options)
3419 = (char **) xmalloc (n_linker_options * sizeof (char **));
3422 = (char **) xrealloc (linker_options,
3423 n_linker_options * sizeof (char **));
3425 linker_options[n_linker_options - 1] = string;
3429 /* Dump out the options accumulated previously using %x. */
3431 for (i = 0; i < n_linker_options; i++)
3433 do_spec_1 (linker_options[i], 1, NULL_PTR);
3434 /* Make each accumulated option a separate argument. */
3435 do_spec_1 (" ", 0, NULL_PTR);
3439 /* Dump out the options accumulated previously using -Wa,. */
3441 for (i = 0; i < n_assembler_options; i++)
3443 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3444 /* Make each accumulated option a separate argument. */
3445 do_spec_1 (" ", 0, NULL_PTR);
3449 /* Dump out the options accumulated previously using -Wp,. */
3451 for (i = 0; i < n_preprocessor_options; i++)
3453 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3454 /* Make each accumulated option a separate argument. */
3455 do_spec_1 (" ", 0, NULL_PTR);
3459 /* Here are digits and numbers that just process
3460 a certain constant string as a spec. */
3463 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3469 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3475 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3481 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3487 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3493 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3499 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3505 value = do_spec_1 (link_spec, 0, NULL_PTR);
3511 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3517 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3524 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3528 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3532 if (! strncmp (y, "-D", 2))
3533 /* Copy the whole option. */
3534 while (*y && *y != ' ' && *y != '\t')
3536 else if (*y == ' ' || *y == '\t')
3537 /* Copy whitespace to the result. */
3539 /* Don't copy other options. */
3546 value = do_spec_1 (buf, 0, NULL_PTR);
3554 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3558 /* Copy all of CPP_PREDEFINES into BUF,
3559 but put __ after every -D and at the end of each arg. */
3563 if (! strncmp (y, "-D", 2))
3571 || (*(y+1) != '_' && ! isupper (*(y+1))))
3573 /* Stick __ at front of macro name. */
3576 /* Arrange to stick __ at the end as well. */
3580 /* Copy the macro name. */
3581 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3590 /* Copy the value given, if any. */
3591 while (*y && *y != ' ' && *y != '\t')
3594 else if (*y == ' ' || *y == '\t')
3595 /* Copy whitespace to the result. */
3597 /* Don't copy -A options */
3603 /* Copy all of CPP_PREDEFINES into BUF,
3604 but put __ after every -D. */
3608 if (! strncmp (y, "-D", 2))
3613 || (*(y+1) != '_' && ! isupper (*(y+1))))
3615 /* Stick -D__ at front of macro name. */
3621 /* Copy the macro name. */
3622 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3625 /* Copy the value given, if any. */
3626 while (*y && *y != ' ' && *y != '\t')
3631 /* Do not copy this macro - we have just done it before */
3632 while (*y && *y != ' ' && *y != '\t')
3636 else if (*y == ' ' || *y == '\t')
3637 /* Copy whitespace to the result. */
3639 /* Don't copy -A options */
3645 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3649 if (! strncmp (y, "-A", 2))
3650 /* Copy the whole option. */
3651 while (*y && *y != ' ' && *y != '\t')
3653 else if (*y == ' ' || *y == '\t')
3654 /* Copy whitespace to the result. */
3656 /* Don't copy other options. */
3663 value = do_spec_1 (buf, 0, NULL_PTR);
3670 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3675 /* Here we define characters other than letters and digits. */
3678 p = handle_braces (p);
3684 obstack_1grow (&obstack, '%');
3688 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3689 do_spec_1 (" ", 0, NULL_PTR);
3692 /* Process a string found as the value of a spec given by name.
3693 This feature allows individual machine descriptions
3694 to add and use their own specs.
3695 %[...] modifies -D options the way %P does;
3696 %(...) uses the spec unmodified. */
3701 struct spec_list *sl;
3704 /* The string after the S/P is the name of a spec that is to be
3706 while (*p && *p != ')' && *p != ']')
3709 /* See if it's in the list */
3710 for (len = p - name, sl = specs; sl; sl = sl->next)
3711 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3721 value = do_spec_1 (name, 0, NULL_PTR);
3727 char *x = (char *) alloca (strlen (name) * 2 + 1);
3731 /* Copy all of NAME into BUF, but put __ after
3732 every -D and at the end of each arg, */
3735 if (! strncmp (y, "-D", 2))
3743 else if (*y == ' ' || *y == 0)
3757 value = do_spec_1 (buf, 0, NULL_PTR);
3763 /* Discard the closing paren or bracket. */
3771 int c1 = *p++; /* Select first or second version number. */
3772 char *v = compiler_version;
3774 /* If desired, advance to second version number. */
3777 /* Set V after the first period. */
3778 while (*v != 0 && *v != ' ' && *v != '.')
3783 /* Set Q at the next period or at the end. */
3785 while (*q != 0 && *q != ' ' && *q != '.')
3787 /* Empty string means zero. */
3793 /* Put that part into the command. */
3794 obstack_grow (&obstack, v, q - v);
3800 if (input_from_pipe)
3801 do_spec_1 ("-", 0, NULL_PTR);
3810 /* Backslash: treat next character as ordinary. */
3815 /* Ordinary character: put it into the current argument. */
3816 obstack_1grow (&obstack, c);
3820 return 0; /* End of string */
3823 /* Return 0 if we call do_spec_1 and that returns -1. */
3836 /* A `|' after the open-brace means,
3837 if the test fails, output a single minus sign rather than nothing.
3838 This is used in %{|!pipe:...}. */
3842 /* A `!' after the open-brace negates the condition:
3843 succeed if the specified switch is not present. */
3847 /* A `.' after the open-brace means test against the current suffix. */
3857 while (*p != ':' && *p != '}') p++;
3860 register int count = 1;
3878 int found = (input_suffix != 0
3879 && strlen (input_suffix) == p - filter
3880 && strncmp (input_suffix, filter, p - filter) == 0);
3886 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3891 else if (p[-1] == '*' && p[0] == '}')
3893 /* Substitute all matching switches as separate args. */
3896 for (i = 0; i < n_switches; i++)
3897 if (!strncmp (switches[i].part1, filter, p - filter)
3898 && check_live_switch (i, p - filter))
3903 /* Test for presence of the specified switch. */
3907 /* If name specified ends in *, as in {x*:...},
3908 check for %* and handle that case. */
3909 if (p[-1] == '*' && !negate)
3914 /* First see whether we have %*. */
3918 if (*r == '%' && r[1] == '*')
3922 /* If we do, handle that case. */
3925 /* Substitute all matching switches as separate args.
3926 But do this by substituting for %*
3927 in the text that follows the colon. */
3929 unsigned hard_match_len = p - filter - 1;
3930 char *string = save_string (p + 1, q - p - 2);
3932 for (i = 0; i < n_switches; i++)
3933 if (!strncmp (switches[i].part1, filter, hard_match_len)
3934 && check_live_switch (i, -1))
3936 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3937 /* Pass any arguments this switch has. */
3945 /* If name specified ends in *, as in {x*:...},
3946 check for presence of any switch name starting with x. */
3949 for (i = 0; i < n_switches; i++)
3951 unsigned hard_match_len = p - filter - 1;
3953 if (!strncmp (switches[i].part1, filter, hard_match_len)
3954 && check_live_switch (i, hard_match_len))
3960 /* Otherwise, check for presence of exact name specified. */
3963 for (i = 0; i < n_switches; i++)
3965 if (!strncmp (switches[i].part1, filter, p - filter)
3966 && switches[i].part1[p - filter] == 0
3967 && check_live_switch (i, -1))
3975 /* If it is as desired (present for %{s...}, absent for %{-s...})
3976 then substitute either the switch or the specified
3977 conditional text. */
3978 if (present != negate)
3986 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3992 /* Here if a %{|...} conditional fails: output a minus sign,
3993 which means "standard output" or "standard input". */
3994 do_spec_1 ("-", 0, NULL_PTR);
4001 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4002 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4003 spec, or -1 if either exact match or %* is used.
4005 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4006 whose value does not begin with "no-" is obsoleted by the same value
4007 with the "no-", similarly for a switch with the "no-" prefix. */
4010 check_live_switch (switchnum, prefix_length)
4014 char *name = switches[switchnum].part1;
4017 /* In the common case of {<at-most-one-letter>*}, a negating
4018 switch would always match, so ignore that case. We will just
4019 send the conflicting switches to the compiler phase. */
4020 if (prefix_length >= 0 && prefix_length <= 1)
4023 /* If we already processed this switch and determined if it was
4024 live or not, return our past determination. */
4025 if (switches[switchnum].live_cond != 0)
4026 return switches[switchnum].live_cond > 0;
4028 /* Now search for duplicate in a manner that depends on the name. */
4032 for (i = switchnum + 1; i < n_switches; i++)
4033 if (switches[i].part1[0] == 'O')
4035 switches[switchnum].valid = 1;
4036 switches[switchnum].live_cond = -1;
4041 case 'W': case 'f': case 'm':
4042 if (! strncmp (name + 1, "no-", 3))
4044 /* We have Xno-YYY, search for XYYY. */
4045 for (i = switchnum + 1; i < n_switches; i++)
4046 if (switches[i].part1[0] == name[0]
4047 && ! strcmp (&switches[i].part1[1], &name[4]))
4049 switches[switchnum].valid = 1;
4050 switches[switchnum].live_cond = -1;
4056 /* We have XYYY, search for Xno-YYY. */
4057 for (i = switchnum + 1; i < n_switches; i++)
4058 if (switches[i].part1[0] == name[0]
4059 && switches[i].part1[1] == 'n'
4060 && switches[i].part1[2] == 'o'
4061 && switches[i].part1[3] == '-'
4062 && !strcmp (&switches[i].part1[4], &name[1]))
4064 switches[switchnum].valid = 1;
4065 switches[switchnum].live_cond = -1;
4072 /* Otherwise the switch is live. */
4073 switches[switchnum].live_cond = 1;
4077 /* Pass a switch to the current accumulating command
4078 in the same form that we received it.
4079 SWITCHNUM identifies the switch; it is an index into
4080 the vector of switches gcc received, which is `switches'.
4081 This cannot fail since it never finishes a command line.
4083 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4086 give_switch (switchnum, omit_first_word)
4088 int omit_first_word;
4090 if (!omit_first_word)
4092 do_spec_1 ("-", 0, NULL_PTR);
4093 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4095 do_spec_1 (" ", 0, NULL_PTR);
4096 if (switches[switchnum].args != 0)
4099 for (p = switches[switchnum].args; *p; p++)
4101 do_spec_1 (*p, 1, NULL_PTR);
4102 do_spec_1 (" ", 0, NULL_PTR);
4105 switches[switchnum].valid = 1;
4108 /* Search for a file named NAME trying various prefixes including the
4109 user's -B prefix and some standard ones.
4110 Return the absolute file name found. If nothing is found, return NAME. */
4118 /* Try multilib_dir if it is defined. */
4119 if (multilib_dir != NULL)
4123 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4124 strcpy (try, multilib_dir);
4125 strcat (try, dir_separator_str);
4128 newname = find_a_file (&startfile_prefixes, try, R_OK);
4130 /* If we don't find it in the multi library dir, then fall
4131 through and look for it in the normal places. */
4132 if (newname != NULL)
4136 newname = find_a_file (&startfile_prefixes, name, R_OK);
4137 return newname ? newname : name;
4140 /* Determine whether a directory exists. If LINKER, return 0 for
4141 certain fixed names not needed by the linker. If not LINKER, it is
4142 only important to return 0 if the host machine has a small ARG_MAX
4146 is_directory (path1, path2, linker)
4151 int len1 = strlen (path1);
4152 int len2 = strlen (path2);
4153 char *path = (char *) alloca (3 + len1 + len2);
4157 #ifndef SMALL_ARG_MAX
4162 /* Construct the path from the two parts. Ensure the string ends with "/.".
4163 The resulting path will be a directory even if the given path is a
4165 bcopy (path1, path, len1);
4166 bcopy (path2, path + len1, len2);
4167 cp = path + len1 + len2;
4168 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4169 *cp++ = DIR_SEPARATOR;
4173 /* Exclude directories that the linker is known to search. */
4176 && strcmp (path, concat4 (dir_separator_str, "lib",
4177 dir_separator_str, ".")) == 0)
4179 && strcmp (path, concat6 (dir_separator_str, "usr",
4180 dir_separator_str, "lib",
4181 dir_separator_str, ".")) == 0)))
4184 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4187 /* On fatal signals, delete all the temporary files. */
4190 fatal_error (signum)
4193 signal (signum, SIG_DFL);
4194 delete_failure_queue ();
4195 delete_temp_files ();
4196 /* Get the same signal again, this time not handled,
4197 so its normal effect occurs. */
4198 kill (getpid (), signum);
4209 int linker_was_run = 0;
4210 char *explicit_link_files;
4214 p = argv[0] + strlen (argv[0]);
4215 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4218 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4219 signal (SIGINT, fatal_error);
4221 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4222 signal (SIGHUP, fatal_error);
4224 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4225 signal (SIGTERM, fatal_error);
4227 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4228 signal (SIGPIPE, fatal_error);
4232 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4234 obstack_init (&obstack);
4236 /* Set up to remember the pathname of gcc and any options
4237 needed for collect. We use argv[0] instead of programname because
4238 we need the complete pathname. */
4239 obstack_init (&collect_obstack);
4240 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4241 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4242 putenv (obstack_finish (&collect_obstack));
4244 #ifdef INIT_ENVIRONMENT
4245 /* Set up any other necessary machine specific environment variables. */
4246 putenv (INIT_ENVIRONMENT);
4249 /* Choose directory for temp files. */
4251 choose_temp_base ();
4253 /* Make a table of what switches there are (switches, n_switches).
4254 Make a table of specified input files (infiles, n_infiles).
4255 Decode switches that are handled locally. */
4257 process_command (argc, argv);
4259 /* Initialize the vector of specs to just the default.
4260 This means one element containing 0s, as a terminator. */
4262 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4263 bcopy ((char *) default_compilers, (char *) compilers,
4264 sizeof default_compilers);
4265 n_compilers = n_default_compilers;
4267 /* Read specs from a file if there is one. */
4269 machine_suffix = concat4 (spec_machine, dir_separator_str,
4270 spec_version, dir_separator_str);
4271 just_machine_suffix = concat (spec_machine, dir_separator_str);
4273 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4274 /* Read the specs file unless it is a default one. */
4275 if (specs_file != 0 && strcmp (specs_file, "specs"))
4276 read_specs (specs_file);
4278 /* If not cross-compiling, look for startfiles in the standard places. */
4279 /* The fact that these are done here, after reading the specs file,
4280 means that it cannot be found in these directories.
4281 But that's okay. It should never be there anyway. */
4284 #ifdef MD_EXEC_PREFIX
4285 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4286 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4289 #ifdef MD_STARTFILE_PREFIX
4290 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4293 #ifdef MD_STARTFILE_PREFIX_1
4294 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4297 /* If standard_startfile_prefix is relative, base it on
4298 standard_exec_prefix. This lets us move the installed tree
4299 as a unit. If GCC_EXEC_PREFIX is defined, base
4300 standard_startfile_prefix on that as well. */
4301 if (*standard_startfile_prefix == '/'
4302 || *standard_startfile_prefix == DIR_SEPARATOR)
4303 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4307 if (gcc_exec_prefix)
4308 add_prefix (&startfile_prefixes,
4309 concat3 (gcc_exec_prefix, machine_suffix,
4310 standard_startfile_prefix),
4312 add_prefix (&startfile_prefixes,
4313 concat3 (standard_exec_prefix,
4315 standard_startfile_prefix),
4319 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4321 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4323 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4324 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4329 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4330 add_prefix (&startfile_prefixes,
4331 concat3 (gcc_exec_prefix, machine_suffix,
4332 standard_startfile_prefix),
4336 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4337 if (gcc_exec_prefix)
4339 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4340 + strlen (spec_version)
4341 + strlen (spec_machine) + 3);
4342 strcpy (temp, gcc_exec_prefix);
4343 strcat (temp, spec_machine);
4344 strcat (temp, dir_separator_str);
4345 strcat (temp, spec_version);
4346 strcat (temp, dir_separator_str);
4347 gcc_exec_prefix = temp;
4350 /* Now we have the specs.
4351 Set the `valid' bits for switches that match anything in any spec. */
4353 validate_all_switches ();
4355 /* Now that we have the switches and the specs, set
4356 the subdirectory based on the options. */
4357 set_multilib_dir ();
4359 /* Warn about any switches that no pass was interested in. */
4361 for (i = 0; i < n_switches; i++)
4362 if (! switches[i].valid)
4363 error ("unrecognized option `-%s'", switches[i].part1);
4365 /* Obey some of the options. */
4367 if (print_search_dirs)
4369 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4370 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4371 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4375 if (print_file_name)
4377 printf ("%s\n", find_file (print_file_name));
4381 if (print_prog_name)
4383 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4384 printf ("%s\n", (newname ? newname : print_prog_name));
4388 if (print_multi_lib)
4390 print_multilib_info ();
4394 if (print_multi_directory)
4396 if (multilib_dir == NULL)
4399 printf ("%s\n", multilib_dir);
4405 if (! strcmp (version_string, compiler_version))
4406 fprintf (stderr, "gcc version %s\n", version_string);
4408 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4409 version_string, compiler_version);
4416 fatal ("No input files");
4418 /* Make a place to record the compiler output file names
4419 that correspond to the input files. */
4421 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4422 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4424 /* Record which files were specified explicitly as link input. */
4426 explicit_link_files = xmalloc (n_infiles);
4427 bzero (explicit_link_files, n_infiles);
4429 for (i = 0; i < n_infiles; i++)
4431 register struct compiler *cp = 0;
4432 int this_file_error = 0;
4434 /* Tell do_spec what to substitute for %i. */
4436 input_filename = infiles[i].name;
4437 input_filename_length = strlen (input_filename);
4438 input_file_number = i;
4440 /* Use the same thing in %o, unless cp->spec says otherwise. */
4442 outfiles[i] = input_filename;
4444 /* Figure out which compiler from the file's suffix. */
4446 cp = lookup_compiler (infiles[i].name, input_filename_length,
4447 infiles[i].language);
4451 /* Ok, we found an applicable compiler. Run its spec. */
4452 /* First say how much of input_filename to substitute for %b */
4456 input_basename = input_filename;
4457 for (p = input_filename; *p; p++)
4458 if (*p == '/' || *p == DIR_SEPARATOR)
4459 input_basename = p + 1;
4461 /* Find a suffix starting with the last period,
4462 and set basename_length to exclude that suffix. */
4463 basename_length = strlen (input_basename);
4464 p = input_basename + basename_length;
4465 while (p != input_basename && *p != '.') --p;
4466 if (*p == '.' && p != input_basename)
4468 basename_length = p - input_basename;
4469 input_suffix = p + 1;
4475 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4477 len += strlen (cp->spec[j]);
4479 p = (char *) xmalloc (len + 1);
4482 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4485 strcpy (p + len, cp->spec[j]);
4486 len += strlen (cp->spec[j]);
4489 value = do_spec (p);
4492 this_file_error = 1;
4495 /* If this file's name does not contain a recognized suffix,
4496 record it as explicit linker input. */
4499 explicit_link_files[i] = 1;
4501 /* Clear the delete-on-failure queue, deleting the files in it
4502 if this compilation failed. */
4504 if (this_file_error)
4506 delete_failure_queue ();
4509 /* If this compilation succeeded, don't delete those files later. */
4510 clear_failure_queue ();
4513 /* Run ld to link all the compiler output files. */
4515 if (error_count == 0)
4517 int tmp = execution_count;
4521 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4523 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4524 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4526 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4528 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4529 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4532 for (i = 0; i < n_switches; i++)
4536 obstack_grow (&collect_obstack, " ", 1);
4539 obstack_grow (&collect_obstack, "-", 1);
4540 obstack_grow (&collect_obstack, switches[i].part1,
4541 strlen (switches[i].part1));
4543 for (args = switches[i].args; args && *args; args++)
4545 obstack_grow (&collect_obstack, " ", 1);
4546 obstack_grow (&collect_obstack, *args, strlen (*args));
4549 obstack_grow (&collect_obstack, "\0", 1);
4550 putenv (obstack_finish (&collect_obstack));
4552 value = do_spec (link_command_spec);
4555 linker_was_run = (tmp != execution_count);
4558 /* Warn if a -B option was specified but the prefix was never used. */
4559 unused_prefix_warnings (&exec_prefixes);
4560 unused_prefix_warnings (&startfile_prefixes);
4562 /* If options said don't run linker,
4563 complain about input files to be given to the linker. */
4565 if (! linker_was_run && error_count == 0)
4566 for (i = 0; i < n_infiles; i++)
4567 if (explicit_link_files[i])
4568 error ("%s: linker input file unused since linking not done",
4571 /* Delete some or all of the temporary files we made. */
4574 delete_failure_queue ();
4575 delete_temp_files ();
4577 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4582 /* Find the proper compilation spec for the file name NAME,
4583 whose length is LENGTH. LANGUAGE is the specified language,
4584 or 0 if none specified. */
4586 static struct compiler *
4587 lookup_compiler (name, length, language)
4592 struct compiler *cp;
4594 /* Look for the language, if one is spec'd. */
4597 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4601 if (cp->suffix[0] == '@'
4602 && !strcmp (cp->suffix + 1, language))
4606 error ("language %s not recognized", language);
4609 /* Look for a suffix. */
4610 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4612 if (/* The suffix `-' matches only the file name `-'. */
4613 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4615 (strlen (cp->suffix) < length
4616 /* See if the suffix matches the end of NAME. */
4618 && (!strcmp (cp->suffix,
4619 name + length - strlen (cp->suffix))
4620 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4621 && !strcasecmp (cp->suffix,
4622 name + length - strlen (cp->suffix)))))
4624 && !strcmp (cp->suffix,
4625 name + length - strlen (cp->suffix))))
4628 if (cp->spec[0][0] == '@')
4630 struct compiler *new;
4631 /* An alias entry maps a suffix to a language.
4632 Search for the language; pass 0 for NAME and LENGTH
4633 to avoid infinite recursion if language not found.
4634 Construct the new compiler spec. */
4635 language = cp->spec[0] + 1;
4636 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4637 new->suffix = cp->suffix;
4638 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4639 (char *) new->spec, sizeof new->spec);
4642 /* A non-alias entry: return it. */
4654 register char *value = (char *) malloc (size);
4656 fatal ("virtual memory exhausted");
4661 xrealloc (ptr, size)
4665 register char *value = (char *) realloc (ptr, size);
4667 fatal ("virtual memory exhausted");
4671 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4677 int len1 = strlen (s1);
4678 int len2 = strlen (s2);
4679 char *result = xmalloc (len1 + len2 + 1);
4681 strcpy (result, s1);
4682 strcpy (result + len1, s2);
4683 *(result + len1 + len2) = 0;
4689 concat3 (s1, s2, s3)
4692 return concat (concat (s1, s2), s3);
4696 concat4 (s1, s2, s3, s4)
4697 char *s1, *s2, *s3, *s4;
4699 return concat (concat (s1, s2), concat (s3, s4));
4703 concat6 (s1, s2, s3, s4, s5, s6)
4704 char *s1, *s2, *s3, *s4, *s5, *s6;
4706 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4710 save_string (s, len)
4714 register char *result = xmalloc (len + 1);
4716 bcopy (s, result, len);
4722 pfatal_with_name (name)
4727 if (errno < sys_nerr)
4728 s = concat ("%s: ", my_strerror( errno ));
4730 s = "cannot open `%s'";
4735 perror_with_name (name)
4740 if (errno < sys_nerr)
4741 s = concat ("%s: ", my_strerror( errno ));
4743 s = "cannot open `%s'";
4753 if (errno < sys_nerr)
4754 s = concat ("installation problem, cannot exec `%s': ",
4755 my_strerror (errno));
4757 s = "installation problem, cannot exec `%s'";
4761 /* More 'friendly' abort that prints the line and file.
4762 config.h can #define abort fancy_abort if you like that sort of thing. */
4767 fatal ("Internal gcc abort.");
4772 /* Output an error message and exit */
4775 fatal VPROTO((char *format, ...))
4782 VA_START (ap, format);
4785 format = va_arg (ap, char*);
4788 fprintf (stderr, "%s: ", programname);
4789 vfprintf (stderr, format, ap);
4791 fprintf (stderr, "\n");
4792 delete_temp_files ();
4797 error VPROTO((char *format, ...))
4804 VA_START (ap, format);
4807 format = va_arg (ap, char*);
4810 fprintf (stderr, "%s: ", programname);
4811 vfprintf (stderr, format, ap);
4814 fprintf (stderr, "\n");
4817 #else /* not HAVE_VPRINTF */
4820 fatal (msg, arg1, arg2)
4821 char *msg, *arg1, *arg2;
4823 error (msg, arg1, arg2);
4824 delete_temp_files ();
4829 error (msg, arg1, arg2)
4830 char *msg, *arg1, *arg2;
4832 fprintf (stderr, "%s: ", programname);
4833 fprintf (stderr, msg, arg1, arg2);
4834 fprintf (stderr, "\n");
4837 #endif /* not HAVE_VPRINTF */
4841 validate_all_switches ()
4843 struct compiler *comp;
4846 struct spec_list *spec;
4848 for (comp = compilers; comp->spec[0]; comp++)
4851 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4855 if (c == '%' && *p == '{')
4856 /* We have a switch spec. */
4857 validate_switches (p + 1);
4861 /* look through the linked list of extra specs read from the specs file */
4862 for (spec = specs; spec ; spec = spec->next)
4866 if (c == '%' && *p == '{')
4867 /* We have a switch spec. */
4868 validate_switches (p + 1);
4871 p = link_command_spec;
4873 if (c == '%' && *p == '{')
4874 /* We have a switch spec. */
4875 validate_switches (p + 1);
4877 /* Now notice switches mentioned in the machine-specific specs. */
4881 if (c == '%' && *p == '{')
4882 /* We have a switch spec. */
4883 validate_switches (p + 1);
4887 if (c == '%' && *p == '{')
4888 /* We have a switch spec. */
4889 validate_switches (p + 1);
4893 if (c == '%' && *p == '{')
4894 /* We have a switch spec. */
4895 validate_switches (p + 1);
4897 p = signed_char_spec;
4899 if (c == '%' && *p == '{')
4900 /* We have a switch spec. */
4901 validate_switches (p + 1);
4905 if (c == '%' && *p == '{')
4906 /* We have a switch spec. */
4907 validate_switches (p + 1);
4911 if (c == '%' && *p == '{')
4912 /* We have a switch spec. */
4913 validate_switches (p + 1);
4917 if (c == '%' && *p == '{')
4918 /* We have a switch spec. */
4919 validate_switches (p + 1);
4923 if (c == '%' && *p == '{')
4924 /* We have a switch spec. */
4925 validate_switches (p + 1);
4929 if (c == '%' && *p == '{')
4930 /* We have a switch spec. */
4931 validate_switches (p + 1);
4935 if (c == '%' && *p == '{')
4936 /* We have a switch spec. */
4937 validate_switches (p + 1);
4940 /* Look at the switch-name that comes after START
4941 and mark as valid all supplied switches that match it. */
4944 validate_switches (start)
4947 register char *p = start;
4962 while (*p != ':' && *p != '}') p++;
4966 else if (p[-1] == '*')
4968 /* Mark all matching switches as valid. */
4970 for (i = 0; i < n_switches; i++)
4971 if (!strncmp (switches[i].part1, filter, p - filter))
4972 switches[i].valid = 1;
4976 /* Mark an exact matching switch as valid. */
4977 for (i = 0; i < n_switches; i++)
4979 if (!strncmp (switches[i].part1, filter, p - filter)
4980 && switches[i].part1[p - filter] == 0)
4981 switches[i].valid = 1;
4986 /* Check whether a particular argument was used. */
4995 for (i = 0; i < n_switches; i++)
4996 if (! strncmp (switches[i].part1, p, len)
4997 && strlen (switches[i].part1) == len)
5002 /* Check whether a particular argument is a default argument. */
5004 #ifndef MULTILIB_DEFAULTS
5005 #define MULTILIB_DEFAULTS { NULL }
5008 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
5011 default_arg (p, len)
5015 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
5018 for (i = 0; i < count; i++)
5019 if (multilib_defaults[i] != NULL
5020 && strncmp (multilib_defaults[i], p, len) == 0
5021 && multilib_defaults[i][len] == '\0')
5027 /* Work out the subdirectory to use based on the
5028 options. The format of multilib_select is a list of elements.
5029 Each element is a subdirectory name followed by a list of options
5030 followed by a semicolon. gcc will consider each line in turn. If
5031 none of the options beginning with an exclamation point are
5032 present, and all of the other options are present, that
5033 subdirectory will be used. */
5038 char *p = multilib_select;
5040 char *this_path, *this_arg;
5046 /* Ignore newlines. */
5053 /* Get the initial path. */
5061 this_path_len = p - this_path;
5063 /* Check the arguments. */
5078 while (*p != ' ' && *p != ';')
5085 if (*this_arg != '!')
5093 /* If this is a default argument, we can just ignore it.
5094 This is true even if this_arg begins with '!'. Beginning
5095 with '!' does not mean that this argument is necessarily
5096 inappropriate for this library: it merely means that
5097 there is a more specific library which uses this
5098 argument. If this argument is a default, we need not
5099 consider that more specific library. */
5100 if (! default_arg (this_arg, p - this_arg))
5102 ok = used_arg (this_arg, p - this_arg);
5113 if (this_path_len != 1
5114 || this_path[0] != '.')
5116 multilib_dir = xmalloc (this_path_len + 1);
5117 strncpy (multilib_dir, this_path, this_path_len);
5118 multilib_dir[this_path_len] = '\0';
5127 /* Print out the multiple library subdirectory selection
5128 information. This prints out a series of lines. Each line looks
5129 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5130 required. Only the desired options are printed out, the negative
5131 matches. The options are print without a leading dash. There are
5132 no spaces to make it easy to use the information in the shell.
5133 Each subdirectory is printed only once. This assumes the ordering
5134 generated by the genmultilib script. */
5137 print_multilib_info ()
5139 char *p = multilib_select;
5140 char *last_path = 0, *this_path;
5142 int last_path_len = 0;
5146 /* Ignore newlines. */
5153 /* Get the initial path. */
5162 /* If this is a duplicate, skip it. */
5163 skip = (last_path != 0 && p - this_path == last_path_len
5164 && ! strncmp (last_path, this_path, last_path_len));
5166 last_path = this_path;
5167 last_path_len = p - this_path;
5169 /* If this directory requires any default arguments, we can skip
5170 it. We will already have printed a directory identical to
5171 this one which does not require that default argument. */
5189 while (*q != ' ' && *q != ';')
5197 && default_arg (arg, q - arg))
5212 for (p1 = last_path; p1 < p; p1++)
5231 use_arg = *p != '!';
5236 while (*p != ' ' && *p != ';')