1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
40 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Include multi-lib information. */
64 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
67 #define WTERMSIG(S) ((S) & 0x7f)
70 #define WIFEXITED(S) (((S) & 0xff) == 0)
73 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
76 /* Add prototype support. */
78 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
79 #define PROTO(ARGS) ARGS
81 #define PROTO(ARGS) ()
87 #define PVPROTO(ARGS) ARGS
88 #define VPROTO(ARGS) ARGS
89 #define VA_START(va_list,var) va_start(va_list,var)
91 #define PVPROTO(ARGS) ()
92 #define VPROTO(ARGS) (va_alist) va_dcl
93 #define VA_START(va_list,var) va_start(va_list)
97 /* Define a generic NULL if one hasn't already been defined. */
103 /* Define O_RDONLY if the system hasn't defined it for us. */
109 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
110 #define GENERIC_PTR void *
112 #define GENERIC_PTR char *
117 #define NULL_PTR ((GENERIC_PTR)0)
124 /* On MSDOS, write temp files in current dir
125 because there's no place else we can expect to use. */
132 /* Test if something is a normal file. */
134 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
137 /* Test if something is a directory. */
139 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
142 /* By default there is no special suffix for executables. */
143 #ifndef EXECUTABLE_SUFFIX
144 #define EXECUTABLE_SUFFIX ""
147 /* By default, the suffix for object files is ".o". */
149 #define HAVE_OBJECT_SUFFIX
151 #define OBJECT_SUFFIX ".o"
154 /* By default, colon separates directories in a path. */
155 #ifndef PATH_SEPARATOR
156 #define PATH_SEPARATOR ':'
159 #ifndef DIR_SEPARATOR
160 #define DIR_SEPARATOR '/'
163 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
165 #define obstack_chunk_alloc xmalloc
166 #define obstack_chunk_free free
169 extern char *getenv ();
176 #ifndef HAVE_STRERROR
178 extern const char *const sys_errlist
[];
180 extern char *sys_errlist
[];
183 extern char *strerror();
186 extern int execv (), execvp ();
188 /* If a stage of compilation returns an exit status >= 1,
189 compilation of that file ceases. */
191 #define MIN_FATAL_STATUS 1
193 /* Flag saying to print the directories gcc will search through looking for
194 programs, libraries, etc. */
196 static int print_search_dirs
;
198 /* Flag saying to print the full filename of this file
199 as found through our usual search mechanism. */
201 static char *print_file_name
= NULL
;
203 /* As print_file_name, but search for executable file. */
205 static char *print_prog_name
= NULL
;
207 /* Flag saying to print the relative path we'd use to
208 find libgcc.a given the current compiler flags. */
210 static int print_multi_directory
;
212 /* Flag saying to print the list of subdirectories and
213 compiler flags used to select them in a standard form. */
215 static int print_multi_lib
;
217 /* Flag indicating whether we should print the command and arguments */
219 static int verbose_flag
;
221 /* Nonzero means write "temp" files in source directory
222 and use the source file's name in them, and don't delete them. */
224 static int save_temps_flag
;
226 /* The compiler version. */
228 static char *compiler_version
;
230 /* The target version specified with -V */
232 static char *spec_version
= DEFAULT_TARGET_VERSION
;
234 /* The target machine specified with -b. */
236 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
238 /* Nonzero if cross-compiling.
239 When -b is used, the value comes from the `specs' file. */
242 static int cross_compile
= 1;
244 static int cross_compile
= 0;
247 /* The number of errors that have occurred; the link phase will not be
248 run if this is non-zero. */
249 static int error_count
= 0;
251 /* This is the obstack which we use to allocate many strings. */
253 static struct obstack obstack
;
255 /* This is the obstack to build an environment variable to pass to
256 collect2 that describes all of the relevant switches of what to
257 pass the compiler in building the list of pointers to constructors
260 static struct obstack collect_obstack
;
262 extern char *version_string
;
264 /* Forward declaration for prototypes. */
267 static void set_spec
PROTO((char *, char *));
268 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
269 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
270 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
271 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
272 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
273 static char *skip_whitespace
PROTO((char *));
274 static void record_temp_file
PROTO((char *, int, int));
275 static void delete_if_ordinary
PROTO((char *));
276 static void delete_temp_files
PROTO((void));
277 static void delete_failure_queue
PROTO((void));
278 static void clear_failure_queue
PROTO((void));
279 static char *choose_temp_base_try
PROTO((char *, char *));
280 static void choose_temp_base
PROTO((void));
281 static int check_live_switch
PROTO((int, int));
282 static char *handle_braces
PROTO((char *));
283 static char *save_string
PROTO((char *, int));
284 static char *concat
PROTO((char *, char *));
285 static char *concat3
PROTO((char *, char *, char *));
286 static char *concat4
PROTO((char *, char *, char *, char *));
287 static char *concat6
PROTO((char *, char *, char *, char *, char *, \
289 static int do_spec
PROTO((char *));
290 static int do_spec_1
PROTO((char *, int, char *));
291 static char *find_file
PROTO((char *));
292 static int is_directory
PROTO((char *, char *, int));
293 static void validate_switches
PROTO((char *));
294 static void validate_all_switches
PROTO((void));
295 static void give_switch
PROTO((int, int));
296 static int used_arg
PROTO((char *, int));
297 static void set_multilib_dir
PROTO((void));
298 static void print_multilib_info
PROTO((void));
299 static void pfatal_with_name
PROTO((char *));
300 static void perror_with_name
PROTO((char *));
301 static void perror_exec
PROTO((char *));
303 static void fatal
PVPROTO((char *, ...));
304 static void error
PVPROTO((char *, ...));
306 /* We must not provide any prototype here, even if ANSI C. */
307 static void fatal
PROTO(());
308 static void error
PROTO(());
315 /* Specs are strings containing lines, each of which (if not blank)
316 is made up of a program name, and arguments separated by spaces.
317 The program name must be exact and start from root, since no path
318 is searched and it is unreliable to depend on the current working directory.
319 Redirection of input or output is not supported; the subprograms must
320 accept filenames saying what files to read and write.
322 In addition, the specs can contain %-sequences to substitute variable text
323 or for conditional text. Here is a table of all defined %-sequences.
324 Note that spaces are not generated automatically around the results of
325 expanding these sequences; therefore, you can concatenate them together
326 or with constant text in a single argument.
328 %% substitute one % into the program name or argument.
329 %i substitute the name of the input file being processed.
330 %b substitute the basename of the input file being processed.
331 This is the substring up to (and not including) the last period
332 and not including the directory.
333 %g substitute the temporary-file-name-base. This is a string chosen
334 once per compilation. Different temporary file names are made by
335 concatenation of constant strings on the end, as in `%g.s'.
336 %g also has the same effect of %d.
337 %u like %g, but make the temporary file name unique.
338 %U returns the last file name generated with %u.
339 %d marks the argument containing or following the %d as a
340 temporary file name, so that that file will be deleted if CC exits
341 successfully. Unlike %g, this contributes no text to the argument.
342 %w marks the argument containing or following the %w as the
343 "output file" of this compilation. This puts the argument
344 into the sequence of arguments that %o will substitute later.
346 like %{...} but mark last argument supplied within
347 as a file to be deleted on failure.
348 %o substitutes the names of all the output files, with spaces
349 automatically placed around them. You should write spaces
350 around the %o as well or the results are undefined.
351 %o is for use in the specs for running the linker.
352 Input files whose names have no recognized suffix are not compiled
353 at all, but they are included among the output files, so they will
355 %O substitutes the suffix for object files.
356 %p substitutes the standard macro predefinitions for the
357 current target machine. Use this when running cpp.
358 %P like %p, but puts `__' before and after the name of each macro.
359 (Except macros that already have __.)
361 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
362 %s current argument is the name of a library or startup file of some sort.
363 Search for that file in a standard list of directories
364 and substitute the full name found.
365 %eSTR Print STR as an error message. STR is terminated by a newline.
366 Use this when inconsistent options are detected.
367 %x{OPTION} Accumulate an option for %X.
368 %X Output the accumulated linker options specified by compilations.
369 %Y Output the accumulated assembler options specified by compilations.
370 %Z Output the accumulated preprocessor options specified by compilations.
371 %v1 Substitute the major version number of GCC.
372 (For version 2.5.n, this is 2.)
373 %v2 Substitute the minor version number of GCC.
374 (For version 2.5.n, this is 5.)
375 %a process ASM_SPEC as a spec.
376 This allows config.h to specify part of the spec for running as.
377 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
378 used here. This can be used to run a post-processor after the
379 assembler has done it's job.
380 %D Dump out a -L option for each directory in startfile_prefixes.
381 If multilib_dir is set, extra entries are generated with it affixed.
382 %l process LINK_SPEC as a spec.
383 %L process LIB_SPEC as a spec.
384 %G process LIBGCC_SPEC as a spec.
385 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
386 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
387 %c process SIGNED_CHAR_SPEC as a spec.
388 %C process CPP_SPEC as a spec. A capital C is actually used here.
389 %1 process CC1_SPEC as a spec.
390 %2 process CC1PLUS_SPEC as a spec.
391 %| output "-" if the input for the current command is coming from a pipe.
392 %* substitute the variable part of a matched option. (See below.)
393 Note that each comma in the substituted string is replaced by
395 %{S} substitutes the -S switch, if that switch was given to CC.
396 If that switch was not specified, this substitutes nothing.
397 Here S is a metasyntactic variable.
398 %{S*} substitutes all the switches specified to CC whose names start
399 with -S. This is used for -o, -D, -I, etc; switches that take
400 arguments. CC considers `-o foo' as being one switch whose
401 name starts with `o'. %{o*} would substitute this text,
402 including the space; thus, two arguments would be generated.
403 %{S*:X} substitutes X if one or more switches whose names start with -S are
404 specified to CC. Note that the tail part of the -S option
405 (i.e. the part matched by the `*') will be substituted for each
406 occurrence of %* within X.
407 %{S:X} substitutes X, but only if the -S switch was given to CC.
408 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
409 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
410 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
411 %{.S:X} substitutes X, but only if processing a file with suffix S.
412 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
413 %(Spec) processes a specification defined in a specs file as *Spec:
414 %[Spec] as above, but put __ around -D arguments
416 The conditional text X in a %{S:X} or %{!S:X} construct may contain
417 other nested % constructs or spaces, or even newlines. They are
418 processed as usual, as described above.
420 The -O, -f, -m, and -W switches are handled specifically in these
421 constructs. If another value of -O or the negated form of a -f, -m, or
422 -W switch is found later in the command line, the earlier switch
423 value is ignored, except with {S*} where S is just one letter; this
424 passes all matching options.
426 The character | is used to indicate that a command should be piped to
427 the following command, but only if -pipe is specified.
429 Note that it is built into CC which switches take arguments and which
430 do not. You might think it would be useful to generalize this to
431 allow each compiler's spec to say which switches take arguments. But
432 this cannot be done in a consistent fashion. CC cannot even decide
433 which input files have been specified without knowing which switches
434 take arguments, and it must know which input files to compile in order
435 to tell which compilers to run.
437 CC also knows implicitly that arguments starting in `-l' are to be
438 treated as compiler output files, and passed to the linker in their
439 proper position among the other output files. */
441 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
443 /* config.h can define ASM_SPEC to provide extra args to the assembler
444 or extra switch-translations. */
449 /* config.h can define ASM_FINAL_SPEC to run a post processor after
450 the assembler has run. */
451 #ifndef ASM_FINAL_SPEC
452 #define ASM_FINAL_SPEC ""
455 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
456 or extra switch-translations. */
461 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
462 or extra switch-translations. */
467 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
468 or extra switch-translations. */
470 #define CC1PLUS_SPEC ""
473 /* config.h can define LINK_SPEC to provide extra args to the linker
474 or extra switch-translations. */
479 /* config.h can define LIB_SPEC to override the default libraries. */
481 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
484 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
487 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
488 /* Have gcc do the search for libgcc.a. */
489 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
491 #define LIBGCC_SPEC "%{!shared:-lgcc}"
495 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
496 #ifndef STARTFILE_SPEC
497 #define STARTFILE_SPEC \
498 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
501 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
502 Make the string nonempty to require spaces there. */
503 #ifndef SWITCHES_NEED_SPACES
504 #define SWITCHES_NEED_SPACES ""
507 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
509 #define ENDFILE_SPEC ""
512 /* This spec is used for telling cpp whether char is signed or not. */
513 #ifndef SIGNED_CHAR_SPEC
514 /* Use #if rather than ?:
515 because MIPS C compiler rejects like ?: in initializers. */
516 #if DEFAULT_SIGNED_CHAR
517 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
519 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
523 /* MULTILIB_SELECT comes from multilib.h. It gives a
524 string interpreted by set_multilib_dir to select a library
525 subdirectory based on the compiler options. */
526 #ifndef MULTILIB_SELECT
527 #define MULTILIB_SELECT ". ;"
530 static char *cpp_spec
= CPP_SPEC
;
531 static char *cpp_predefines
= CPP_PREDEFINES
;
532 static char *cc1_spec
= CC1_SPEC
;
533 static char *cc1plus_spec
= CC1PLUS_SPEC
;
534 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
535 static char *asm_spec
= ASM_SPEC
;
536 static char *asm_final_spec
= ASM_FINAL_SPEC
;
537 static char *link_spec
= LINK_SPEC
;
538 static char *lib_spec
= LIB_SPEC
;
539 static char *libgcc_spec
= LIBGCC_SPEC
;
540 static char *endfile_spec
= ENDFILE_SPEC
;
541 static char *startfile_spec
= STARTFILE_SPEC
;
542 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
543 static char *multilib_select
= MULTILIB_SELECT
;
545 /* This defines which switch letters take arguments. */
547 #ifndef SWITCH_TAKES_ARG
548 #define SWITCH_TAKES_ARG(CHAR) \
549 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
550 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
551 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
552 || (CHAR) == 'L' || (CHAR) == 'A')
555 /* This defines which multi-letter switches take arguments. */
557 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
558 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
559 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
560 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
561 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
562 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
563 || !strcmp (STR, "isystem"))
565 #ifndef WORD_SWITCH_TAKES_ARG
566 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
569 /* Record the mapping from file suffixes for compilation specs. */
573 char *suffix
; /* Use this compiler for input files
574 whose names end in this suffix. */
576 char *spec
[4]; /* To use this compiler, concatenate these
577 specs and pass to do_spec. */
580 /* Pointer to a vector of `struct compiler' that gives the spec for
581 compiling a file, based on its suffix.
582 A file that does not end in any of these suffixes will be passed
583 unchanged to the loader and nothing else will be done to it.
585 An entry containing two 0s is used to terminate the vector.
587 If multiple entries match a file, the last matching one is used. */
589 static struct compiler
*compilers
;
591 /* Number of entries in `compilers', not counting the null terminator. */
593 static int n_compilers
;
595 /* The default list of file name suffixes and their compilation specs. */
597 static struct compiler default_compilers
[] =
601 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
602 %{C:%{!E:%eGNU C does not support -C without using -E}}\
603 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
604 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
605 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
606 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
607 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
608 %{traditional-cpp:-traditional}\
609 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
610 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
611 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
612 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
613 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
614 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
616 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
617 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
619 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
620 %{!pipe:%g.s} %A\n }}}}"},
622 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
628 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
629 %{traditional-cpp:-traditional}\
630 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
632 %{!E:%e-E required when input is from standard input}"},
633 {".m", "@objective-c"},
635 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
636 %{C:%{!E:%eGNU C does not support -C without using -E}}\
637 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
638 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
639 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
640 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
641 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
642 %{traditional-cpp:-traditional}\
643 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
644 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
645 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
646 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
647 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
648 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
649 -lang-objc %{gen-decls} \
651 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
652 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
654 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
655 %{!pipe:%g.s} %A\n }}}}"},
658 "%{!E:%eCompilation of header file requested} \
659 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
660 %{C:%{!E:%eGNU C does not support -C without using -E}}\
661 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
662 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
663 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
664 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
665 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
666 %{traditional-cpp:-traditional}\
667 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
669 {".i", "@cpp-output"},
671 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
672 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
673 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
675 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
676 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
678 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 %{!pipe:%g.s} %A\n }}}}"},
680 {".s", "@assembler"},
682 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
683 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
685 {".S", "@assembler-with-cpp"},
686 {"@assembler-with-cpp",
687 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
688 %{C:%{!E:%eGNU C does not support -C without using -E}}\
689 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
690 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
691 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
692 %{traditional-cpp:-traditional}\
693 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
694 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
695 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
696 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
697 %{!pipe:%g.s} %A\n }}}}"},
699 /* Mark end of table */
703 /* Number of elements in default_compilers, not counting the terminator. */
705 static int n_default_compilers
706 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
708 /* Here is the spec for running the linker, after compiling all files. */
710 /* -u* was put back because both BSD and SysV seem to support it. */
711 /* %{static:} simply prevents an error message if the target machine
712 doesn't handle -static. */
713 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
714 scripts which exist in user specified directories, or in standard
716 #ifdef LINK_LIBGCC_SPECIAL
717 /* Don't generate -L options. */
718 static char *link_command_spec
= "\
720 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
721 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
722 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
723 %{static:} %{L*} %{T*} %o\
724 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
725 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
728 static char *link_command_spec
= "\
730 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
731 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
732 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
733 %{static:} %{L*} %D %{T*} %o\
734 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
735 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
738 /* A vector of options to give to the linker.
739 These options are accumulated by %x,
740 and substituted into the linker command with %X. */
741 static int n_linker_options
;
742 static char **linker_options
;
744 /* A vector of options to give to the assembler.
745 These options are accumulated by -Wa,
746 and substituted into the assembler command with %Y. */
747 static int n_assembler_options
;
748 static char **assembler_options
;
750 /* A vector of options to give to the preprocessor.
751 These options are accumulated by -Wp,
752 and substituted into the preprocessor command with %Z. */
753 static int n_preprocessor_options
;
754 static char **preprocessor_options
;
756 /* Define how to map long options into short ones. */
758 /* This structure describes one mapping. */
761 /* The long option's name. */
763 /* The equivalent short option. */
765 /* Argument info. A string of flag chars; NULL equals no options.
766 a => argument required.
767 o => argument optional.
768 j => join argument to equivalent, making one word.
769 * => require other text after NAME as an argument. */
773 /* This is the table of mappings. Mappings are tried sequentially
774 for each option encountered; the first one that matches, wins. */
776 struct option_map option_map
[] =
778 {"--all-warnings", "-Wall", 0},
779 {"--ansi", "-ansi", 0},
780 {"--assemble", "-S", 0},
781 {"--assert", "-A", "a"},
782 {"--comments", "-C", 0},
783 {"--compile", "-c", 0},
784 {"--debug", "-g", "oj"},
785 {"--define-macro", "-D", "a"},
786 {"--dependencies", "-M", 0},
787 {"--dump", "-d", "a"},
788 {"--dumpbase", "-dumpbase", "a"},
789 {"--entry", "-e", 0},
790 {"--extra-warnings", "-W", 0},
791 {"--for-assembler", "-Wa", "a"},
792 {"--for-linker", "-Xlinker", "a"},
793 {"--force-link", "-u", "a"},
794 {"--imacros", "-imacros", "a"},
795 {"--include", "-include", "a"},
796 {"--include-barrier", "-I-", 0},
797 {"--include-directory", "-I", "a"},
798 {"--include-directory-after", "-idirafter", "a"},
799 {"--include-prefix", "-iprefix", "a"},
800 {"--include-with-prefix", "-iwithprefix", "a"},
801 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
802 {"--include-with-prefix-after", "-iwithprefix", "a"},
803 {"--language", "-x", "a"},
804 {"--library-directory", "-L", "a"},
805 {"--machine", "-m", "aj"},
806 {"--machine-", "-m", "*j"},
807 {"--no-line-commands", "-P", 0},
808 {"--no-precompiled-includes", "-noprecomp", 0},
809 {"--no-standard-includes", "-nostdinc", 0},
810 {"--no-standard-libraries", "-nostdlib", 0},
811 {"--no-warnings", "-w", 0},
812 {"--optimize", "-O", "oj"},
813 {"--output", "-o", "a"},
814 {"--pedantic", "-pedantic", 0},
815 {"--pedantic-errors", "-pedantic-errors", 0},
816 {"--pipe", "-pipe", 0},
817 {"--prefix", "-B", "a"},
818 {"--preprocess", "-E", 0},
819 {"--print-search-dirs", "-print-search-dirs", 0},
820 {"--print-file-name", "-print-file-name=", "aj"},
821 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
822 {"--print-missing-file-dependencies", "-MG", 0},
823 {"--print-multi-lib", "-print-multi-lib", 0},
824 {"--print-multi-directory", "-print-multi-directory", 0},
825 {"--print-prog-name", "-print-prog-name=", "aj"},
826 {"--profile", "-p", 0},
827 {"--profile-blocks", "-a", 0},
828 {"--quiet", "-q", 0},
829 {"--save-temps", "-save-temps", 0},
830 {"--shared", "-shared", 0},
831 {"--silent", "-q", 0},
832 {"--static", "-static", 0},
833 {"--symbolic", "-symbolic", 0},
834 {"--target", "-b", "a"},
835 {"--trace-includes", "-H", 0},
836 {"--traditional", "-traditional", 0},
837 {"--traditional-cpp", "-traditional-cpp", 0},
838 {"--trigraphs", "-trigraphs", 0},
839 {"--undefine-macro", "-U", "a"},
840 {"--use-version", "-V", "a"},
841 {"--user-dependencies", "-MM", 0},
842 {"--verbose", "-v", 0},
843 {"--version", "-dumpversion", 0},
844 {"--warn-", "-W", "*j"},
845 {"--write-dependencies", "-MD", 0},
846 {"--write-user-dependencies", "-MMD", 0},
850 /* Translate the options described by *ARGCP and *ARGVP.
851 Make a new vector and store it back in *ARGVP,
852 and store its length in *ARGVC. */
855 translate_options (argcp
, argvp
)
861 char **argv
= *argvp
;
862 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
866 newv
[newindex
++] = argv
[i
++];
870 /* Translate -- options. */
871 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
873 /* Find a mapping that applies to this option. */
874 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
876 int optlen
= strlen (option_map
[j
].name
);
877 int arglen
= strlen (argv
[i
]);
878 int complen
= arglen
> optlen
? optlen
: arglen
;
879 char *arginfo
= option_map
[j
].arg_info
;
884 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
891 k
< sizeof (option_map
) / sizeof (option_map
[0]);
893 if (strlen (option_map
[k
].name
) >= arglen
894 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
896 error ("Ambiguous abbreviation %s", argv
[i
]);
900 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
906 /* If the option has an argument, accept that. */
907 if (argv
[i
][optlen
] == '=')
908 arg
= argv
[i
] + optlen
+ 1;
910 /* If this mapping requires extra text at end of name,
911 accept that as "argument". */
912 else if (index (arginfo
, '*') != 0)
913 arg
= argv
[i
] + optlen
;
915 /* Otherwise, extra text at end means mismatch.
916 Try other mappings. */
921 else if (index (arginfo
, '*') != 0)
923 error ("Incomplete `%s' option", option_map
[j
].name
);
927 /* Handle arguments. */
928 if (index (arginfo
, 'a') != 0)
934 error ("Missing argument to `%s' option",
942 else if (index (arginfo
, '*') != 0)
944 else if (index (arginfo
, 'o') == 0)
947 error ("Extraneous argument to `%s' option",
952 /* Store the translation as one argv elt or as two. */
953 if (arg
!= 0 && index (arginfo
, 'j') != 0)
954 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
);
957 newv
[newindex
++] = option_map
[j
].equivalent
;
958 newv
[newindex
++] = arg
;
961 newv
[newindex
++] = option_map
[j
].equivalent
;
969 /* Handle old-fashioned options--just copy them through,
970 with their arguments. */
971 else if (argv
[i
][0] == '-')
973 char *p
= argv
[i
] + 1;
977 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
978 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
979 else if (WORD_SWITCH_TAKES_ARG (p
))
980 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
981 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
984 else if (! strcmp (p
, "Xlinker"))
987 /* Watch out for an option at the end of the command line that
988 is missing arguments, and avoid skipping past the end of the
990 if (nskip
+ i
> argc
)
995 newv
[newindex
++] = argv
[i
++];
1000 /* Ordinary operands, or +e options. */
1001 newv
[newindex
++] = argv
[i
++];
1015 #ifdef HAVE_STRERROR
1020 static char buffer
[30];
1024 if (e
> 0 && e
< sys_nerr
)
1025 return sys_errlist
[e
];
1027 sprintf (buffer
, "Unknown error %d", e
);
1032 /* Read compilation specs from a file named FILENAME,
1033 replacing the default ones.
1035 A suffix which starts with `*' is a definition for
1036 one of the machine-specific sub-specs. The "suffix" should be
1037 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1038 The corresponding spec is stored in asm_spec, etc.,
1039 rather than in the `compilers' vector.
1041 Anything invalid in the file is a fatal error. */
1044 read_specs (filename
)
1049 struct stat statbuf
;
1054 fprintf (stderr
, "Reading specs from %s\n", filename
);
1056 /* Open and stat the file. */
1057 desc
= open (filename
, O_RDONLY
, 0);
1059 pfatal_with_name (filename
);
1060 if (stat (filename
, &statbuf
) < 0)
1061 pfatal_with_name (filename
);
1063 /* Read contents of file into BUFFER. */
1064 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1065 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1067 pfatal_with_name (filename
);
1068 buffer
[readlen
] = 0;
1071 /* Scan BUFFER for specs, putting them in the vector. */
1077 char *in
, *out
, *p1
, *p2
;
1079 /* Advance P in BUFFER to the next nonblank nocomment line. */
1080 p
= skip_whitespace (p
);
1084 /* Find the colon that should end the suffix. */
1086 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1087 /* The colon shouldn't be missing. */
1089 fatal ("specs file malformed after %d characters", p1
- buffer
);
1090 /* Skip back over trailing whitespace. */
1092 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1093 /* Copy the suffix to a string. */
1094 suffix
= save_string (p
, p2
- p
);
1095 /* Find the next line. */
1096 p
= skip_whitespace (p1
+ 1);
1098 fatal ("specs file malformed after %d characters", p
- buffer
);
1100 /* Find next blank line. */
1101 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1102 /* Specs end at the blank line and do not include the newline. */
1103 spec
= save_string (p
, p1
- p
);
1106 /* Delete backslash-newline sequences from the spec. */
1111 if (in
[0] == '\\' && in
[1] == '\n')
1113 else if (in
[0] == '#')
1115 while (*in
&& *in
!= '\n') in
++;
1122 if (suffix
[0] == '*')
1124 if (! strcmp (suffix
, "*link_command"))
1125 link_command_spec
= spec
;
1127 set_spec (suffix
+ 1, spec
);
1131 /* Add this pair to the vector. */
1133 = ((struct compiler
*)
1134 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1135 compilers
[n_compilers
].suffix
= suffix
;
1136 bzero ((char *) compilers
[n_compilers
].spec
,
1137 sizeof compilers
[n_compilers
].spec
);
1138 compilers
[n_compilers
].spec
[0] = spec
;
1140 bzero ((char *) &compilers
[n_compilers
],
1141 sizeof compilers
[n_compilers
]);
1145 link_command_spec
= spec
;
1148 if (link_command_spec
== 0)
1149 fatal ("spec file has no spec for linking");
1158 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1159 be considered whitespace. */
1160 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1162 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1166 while (*p
!= '\n') p
++;
1176 /* Structure to keep track of the specs that have been defined so far. These
1177 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1181 char *name
; /* Name of the spec. */
1182 char *spec
; /* The spec itself. */
1183 struct spec_list
*next
; /* Next spec in linked list. */
1186 /* List of specs that have been defined so far. */
1188 static struct spec_list
*specs
= (struct spec_list
*) 0;
1190 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1191 removed; If the spec starts with a + then SPEC is added to the end of the
1195 set_spec (name
, spec
)
1199 struct spec_list
*sl
;
1202 /* See if the spec already exists */
1203 for (sl
= specs
; sl
; sl
= sl
->next
)
1204 if (strcmp (sl
->name
, name
) == 0)
1209 /* Not found - make it */
1210 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1211 sl
->name
= save_string (name
, strlen (name
));
1212 sl
->spec
= save_string ("", 0);
1217 old_spec
= sl
->spec
;
1218 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1219 sl
->spec
= concat (old_spec
, spec
+ 1);
1221 sl
->spec
= save_string (spec
, strlen (spec
));
1223 if (! strcmp (name
, "asm"))
1224 asm_spec
= sl
->spec
;
1225 else if (! strcmp (name
, "asm_final"))
1226 asm_final_spec
= sl
->spec
;
1227 else if (! strcmp (name
, "cc1"))
1228 cc1_spec
= sl
->spec
;
1229 else if (! strcmp (name
, "cc1plus"))
1230 cc1plus_spec
= sl
->spec
;
1231 else if (! strcmp (name
, "cpp"))
1232 cpp_spec
= sl
->spec
;
1233 else if (! strcmp (name
, "endfile"))
1234 endfile_spec
= sl
->spec
;
1235 else if (! strcmp (name
, "lib"))
1236 lib_spec
= sl
->spec
;
1237 else if (! strcmp (name
, "libgcc"))
1238 libgcc_spec
= sl
->spec
;
1239 else if (! strcmp (name
, "link"))
1240 link_spec
= sl
->spec
;
1241 else if (! strcmp (name
, "predefines"))
1242 cpp_predefines
= sl
->spec
;
1243 else if (! strcmp (name
, "signed_char"))
1244 signed_char_spec
= sl
->spec
;
1245 else if (! strcmp (name
, "startfile"))
1246 startfile_spec
= sl
->spec
;
1247 else if (! strcmp (name
, "switches_need_spaces"))
1248 switches_need_spaces
= sl
->spec
;
1249 else if (! strcmp (name
, "cross_compile"))
1250 cross_compile
= atoi (sl
->spec
);
1251 else if (! strcmp (name
, "multilib"))
1252 multilib_select
= sl
->spec
;
1253 /* Free the old spec */
1258 /* Accumulate a command (program name and args), and run it. */
1260 /* Vector of pointers to arguments in the current line of specifications. */
1262 static char **argbuf
;
1264 /* Number of elements allocated in argbuf. */
1266 static int argbuf_length
;
1268 /* Number of elements in argbuf currently in use (containing args). */
1270 static int argbuf_index
;
1272 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1273 temp file. Used only if MKTEMP_EACH_FILE. */
1275 static struct temp_name
{
1276 char *suffix
; /* suffix associated with the code. */
1277 int length
; /* strlen (suffix). */
1278 int unique
; /* Indicates whether %g or %u/%U was used. */
1279 char *filename
; /* associated filename. */
1280 int filename_length
; /* strlen (filename). */
1281 struct temp_name
*next
;
1284 /* Number of commands executed so far. */
1286 static int execution_count
;
1288 /* Number of commands that exited with a signal. */
1290 static int signal_count
;
1292 /* Name with which this program was invoked. */
1294 static char *programname
;
1296 /* Structures to keep track of prefixes to try when looking for files. */
1300 char *prefix
; /* String to prepend to the path. */
1301 struct prefix_list
*next
; /* Next in linked list. */
1302 int require_machine_suffix
; /* Don't use without machine_suffix. */
1303 /* 2 means try both machine_suffix and just_machine_suffix. */
1304 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1309 struct prefix_list
*plist
; /* List of prefixes to try */
1310 int max_len
; /* Max length of a prefix in PLIST */
1311 char *name
; /* Name of this list (used in config stuff) */
1314 /* List of prefixes to try when looking for executables. */
1316 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1318 /* List of prefixes to try when looking for startup (crt0) files. */
1320 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1322 /* List of prefixes to try when looking for include files. */
1324 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1326 /* Suffix to attach to directories searched for commands.
1327 This looks like `MACHINE/VERSION/'. */
1329 static char *machine_suffix
= 0;
1331 /* Suffix to attach to directories searched for commands.
1332 This is just `MACHINE/'. */
1334 static char *just_machine_suffix
= 0;
1336 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1338 static char *gcc_exec_prefix
;
1340 /* Default prefixes to attach to command names. */
1342 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1343 #undef MD_EXEC_PREFIX
1344 #undef MD_STARTFILE_PREFIX
1345 #undef MD_STARTFILE_PREFIX_1
1348 #ifndef STANDARD_EXEC_PREFIX
1349 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1350 #endif /* !defined STANDARD_EXEC_PREFIX */
1352 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1353 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1354 #ifdef MD_EXEC_PREFIX
1355 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1358 #ifndef STANDARD_STARTFILE_PREFIX
1359 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1360 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1362 #ifdef MD_STARTFILE_PREFIX
1363 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1365 #ifdef MD_STARTFILE_PREFIX_1
1366 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1368 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1369 static char *standard_startfile_prefix_1
= "/lib/";
1370 static char *standard_startfile_prefix_2
= "/usr/lib/";
1372 #ifndef TOOLDIR_BASE_PREFIX
1373 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1375 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1376 static char *tooldir_prefix
;
1378 /* Subdirectory to use for locating libraries. Set by
1379 set_multilib_dir based on the compilation options. */
1381 static char *multilib_dir
;
1383 /* Clear out the vector of arguments (after a command is executed). */
1391 /* Add one argument to the vector at the end.
1392 This is done when a space is seen or at the end of the line.
1393 If DELETE_ALWAYS is nonzero, the arg is a filename
1394 and the file should be deleted eventually.
1395 If DELETE_FAILURE is nonzero, the arg is a filename
1396 and the file should be deleted if this compilation fails. */
1399 store_arg (arg
, delete_always
, delete_failure
)
1401 int delete_always
, delete_failure
;
1403 if (argbuf_index
+ 1 == argbuf_length
)
1405 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1408 argbuf
[argbuf_index
++] = arg
;
1409 argbuf
[argbuf_index
] = 0;
1411 if (delete_always
|| delete_failure
)
1412 record_temp_file (arg
, delete_always
, delete_failure
);
1415 /* Record the names of temporary files we tell compilers to write,
1416 and delete them at the end of the run. */
1418 /* This is the common prefix we use to make temp file names.
1419 It is chosen once for each run of this program.
1420 It is substituted into a spec by %g.
1421 Thus, all temp file names contain this prefix.
1422 In practice, all temp file names start with this prefix.
1424 This prefix comes from the envvar TMPDIR if it is defined;
1425 otherwise, from the P_tmpdir macro if that is defined;
1426 otherwise, in /usr/tmp or /tmp. */
1428 static char *temp_filename
;
1430 /* Length of the prefix. */
1432 static int temp_filename_length
;
1434 /* Define the list of temporary files to delete. */
1439 struct temp_file
*next
;
1442 /* Queue of files to delete on success or failure of compilation. */
1443 static struct temp_file
*always_delete_queue
;
1444 /* Queue of files to delete on failure of compilation. */
1445 static struct temp_file
*failure_delete_queue
;
1447 /* Record FILENAME as a file to be deleted automatically.
1448 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1449 otherwise delete it in any case.
1450 FAIL_DELETE nonzero means delete it if a compilation step fails;
1451 otherwise delete it in any case. */
1454 record_temp_file (filename
, always_delete
, fail_delete
)
1459 register char *name
;
1460 name
= xmalloc (strlen (filename
) + 1);
1461 strcpy (name
, filename
);
1465 register struct temp_file
*temp
;
1466 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1467 if (! strcmp (name
, temp
->name
))
1469 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1470 temp
->next
= always_delete_queue
;
1472 always_delete_queue
= temp
;
1478 register struct temp_file
*temp
;
1479 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1480 if (! strcmp (name
, temp
->name
))
1482 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1483 temp
->next
= failure_delete_queue
;
1485 failure_delete_queue
= temp
;
1490 /* Delete all the temporary files whose names we previously recorded. */
1493 delete_if_ordinary (name
)
1500 printf ("Delete %s? (y or n) ", name
);
1504 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1505 if (i
== 'y' || i
== 'Y')
1507 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1508 if (unlink (name
) < 0)
1510 perror_with_name (name
);
1514 delete_temp_files ()
1516 register struct temp_file
*temp
;
1518 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1519 delete_if_ordinary (temp
->name
);
1520 always_delete_queue
= 0;
1523 /* Delete all the files to be deleted on error. */
1526 delete_failure_queue ()
1528 register struct temp_file
*temp
;
1530 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1531 delete_if_ordinary (temp
->name
);
1535 clear_failure_queue ()
1537 failure_delete_queue
= 0;
1540 /* Compute a string to use as the base of all temporary file names.
1541 It is substituted for %g. */
1544 choose_temp_base_try (try, base
)
1551 else if (try == (char *)0)
1553 else if (access (try, R_OK
| W_OK
) != 0)
1566 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1567 base
= choose_temp_base_try (getenv ("TMP"), base
);
1568 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1571 base
= choose_temp_base_try (P_tmpdir
, base
);
1574 base
= choose_temp_base_try (concat4 (dir_separator_str
, "usr",
1575 dir_separator_str
, "tmp"),
1577 base
= choose_temp_base_try (concat (dir_separator_str
, "tmp"), base
);
1579 /* If all else fails, use the current directory! */
1580 if (base
== (char *)0) base
= concat(".", dir_separator_str
);
1582 len
= strlen (base
);
1583 temp_filename
= xmalloc (len
+ strlen (concat (dir_separator_str
,
1585 strcpy (temp_filename
, base
);
1586 if (len
> 0 && temp_filename
[len
-1] != '/'
1587 && temp_filename
[len
-1] != DIR_SEPARATOR
)
1588 temp_filename
[len
++] = DIR_SEPARATOR
;
1589 strcpy (temp_filename
+ len
, "ccXXXXXX");
1591 mktemp (temp_filename
);
1592 temp_filename_length
= strlen (temp_filename
);
1593 if (temp_filename_length
== 0)
1598 /* Routine to add variables to the environment. We do this to pass
1599 the pathname of the gcc driver, and the directories search to the
1600 collect2 program, which is being run as ld. This way, we can be
1601 sure of executing the right compiler when collect2 wants to build
1602 constructors and destructors. Since the environment variables we
1603 use come from an obstack, we don't have to worry about allocating
1612 #ifndef VMS /* nor about VMS */
1614 extern char **environ
;
1615 char **old_environ
= environ
;
1619 int str_len
= strlen (str
);
1623 while ((ch
= *p
++) != '\0' && ch
!= '=')
1629 /* Search for replacing an existing environment variable, and
1630 count the number of total environment variables. */
1631 for (envp
= old_environ
; *envp
; envp
++)
1634 if (!strncmp (str
, *envp
, name_len
))
1641 /* Add a new environment variable */
1642 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1644 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1645 sizeof (char *) * (num_envs
+1));
1650 #endif /* HAVE_PUTENV */
1653 /* Build a list of search directories from PATHS.
1654 PREFIX is a string to prepend to the list.
1655 If CHECK_DIR_P is non-zero we ensure the directory exists.
1656 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1657 It is also used by the --print-search-dirs flag. */
1660 build_search_list (paths
, prefix
, check_dir_p
)
1661 struct path_prefix
*paths
;
1665 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1667 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1668 int first_time
= TRUE
;
1669 struct prefix_list
*pprefix
;
1671 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1673 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1675 int len
= strlen (pprefix
->prefix
);
1679 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1682 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1685 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1686 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1689 if (just_machine_suffix
1690 && pprefix
->require_machine_suffix
== 2
1692 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1695 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1698 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1699 obstack_grow (&collect_obstack
, just_machine_suffix
,
1703 if (!pprefix
->require_machine_suffix
)
1706 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1709 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1712 obstack_1grow (&collect_obstack
, '\0');
1713 return obstack_finish (&collect_obstack
);
1716 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1719 putenv_from_prefixes (paths
, env_var
)
1720 struct path_prefix
*paths
;
1723 putenv (build_search_list (paths
, env_var
, 1));
1726 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1727 access to check permissions.
1728 Return 0 if not found, otherwise return its name, allocated with malloc. */
1731 find_a_file (pprefix
, name
, mode
)
1732 struct path_prefix
*pprefix
;
1737 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1738 struct prefix_list
*pl
;
1739 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1742 len
+= strlen (machine_suffix
);
1744 temp
= xmalloc (len
);
1746 /* Determine the filename to execute (special case for absolute paths). */
1748 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1750 if (access (name
, mode
))
1752 strcpy (temp
, name
);
1757 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1761 /* Some systems have a suffix for executable files.
1762 So try appending that first. */
1763 if (file_suffix
[0] != 0)
1765 strcpy (temp
, pl
->prefix
);
1766 strcat (temp
, machine_suffix
);
1767 strcat (temp
, name
);
1768 strcat (temp
, file_suffix
);
1769 if (access (temp
, mode
) == 0)
1771 if (pl
->used_flag_ptr
!= 0)
1772 *pl
->used_flag_ptr
= 1;
1777 /* Now try just the name. */
1778 strcpy (temp
, pl
->prefix
);
1779 strcat (temp
, machine_suffix
);
1780 strcat (temp
, name
);
1781 if (access (temp
, mode
) == 0)
1783 if (pl
->used_flag_ptr
!= 0)
1784 *pl
->used_flag_ptr
= 1;
1789 /* Certain prefixes are tried with just the machine type,
1790 not the version. This is used for finding as, ld, etc. */
1791 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1793 /* Some systems have a suffix for executable files.
1794 So try appending that first. */
1795 if (file_suffix
[0] != 0)
1797 strcpy (temp
, pl
->prefix
);
1798 strcat (temp
, just_machine_suffix
);
1799 strcat (temp
, name
);
1800 strcat (temp
, file_suffix
);
1801 if (access (temp
, mode
) == 0)
1803 if (pl
->used_flag_ptr
!= 0)
1804 *pl
->used_flag_ptr
= 1;
1809 strcpy (temp
, pl
->prefix
);
1810 strcat (temp
, just_machine_suffix
);
1811 strcat (temp
, name
);
1812 if (access (temp
, mode
) == 0)
1814 if (pl
->used_flag_ptr
!= 0)
1815 *pl
->used_flag_ptr
= 1;
1820 /* Certain prefixes can't be used without the machine suffix
1821 when the machine or version is explicitly specified. */
1822 if (!pl
->require_machine_suffix
)
1824 /* Some systems have a suffix for executable files.
1825 So try appending that first. */
1826 if (file_suffix
[0] != 0)
1828 strcpy (temp
, pl
->prefix
);
1829 strcat (temp
, name
);
1830 strcat (temp
, file_suffix
);
1831 if (access (temp
, mode
) == 0)
1833 if (pl
->used_flag_ptr
!= 0)
1834 *pl
->used_flag_ptr
= 1;
1839 strcpy (temp
, pl
->prefix
);
1840 strcat (temp
, name
);
1841 if (access (temp
, mode
) == 0)
1843 if (pl
->used_flag_ptr
!= 0)
1844 *pl
->used_flag_ptr
= 1;
1854 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1855 at the start of the list, otherwise it goes at the end.
1857 If WARN is nonzero, we will warn if no file is found
1858 through this prefix. WARN should point to an int
1859 which will be set to 1 if this entry is used.
1861 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1862 the complete value of machine_suffix.
1863 2 means try both machine_suffix and just_machine_suffix. */
1866 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1867 struct path_prefix
*pprefix
;
1870 int require_machine_suffix
;
1873 struct prefix_list
*pl
, **prev
;
1876 if (!first
&& pprefix
->plist
)
1878 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1883 prev
= &pprefix
->plist
;
1885 /* Keep track of the longest prefix */
1887 len
= strlen (prefix
);
1888 if (len
> pprefix
->max_len
)
1889 pprefix
->max_len
= len
;
1891 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1892 pl
->prefix
= save_string (prefix
, len
);
1893 pl
->require_machine_suffix
= require_machine_suffix
;
1894 pl
->used_flag_ptr
= warn
;
1901 pl
->next
= (struct prefix_list
*) 0;
1905 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1908 unused_prefix_warnings (pprefix
)
1909 struct path_prefix
*pprefix
;
1911 struct prefix_list
*pl
= pprefix
->plist
;
1915 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1917 error ("file path prefix `%s' never used",
1919 /* Prevent duplicate warnings. */
1920 *pl
->used_flag_ptr
= 1;
1926 /* Get rid of all prefixes built up so far in *PLISTP. */
1929 free_path_prefix (pprefix
)
1930 struct path_prefix
*pprefix
;
1932 struct prefix_list
*pl
= pprefix
->plist
;
1933 struct prefix_list
*temp
;
1939 free (temp
->prefix
);
1940 free ((char *) temp
);
1942 pprefix
->plist
= (struct prefix_list
*) 0;
1945 /* stdin file number. */
1946 #define STDIN_FILE_NO 0
1948 /* stdout file number. */
1949 #define STDOUT_FILE_NO 1
1951 /* value of `pipe': port index for reading. */
1954 /* value of `pipe': port index for writing. */
1955 #define WRITE_PORT 1
1957 /* Pipe waiting from last process, to be used as input for the next one.
1958 Value is STDIN_FILE_NO if no pipe is waiting
1959 (i.e. the next command is the first of a group). */
1961 static int last_pipe_input
;
1963 /* Fork one piped subcommand. FUNC is the system call to use
1964 (either execv or execvp). ARGV is the arg vector to use.
1965 NOT_LAST is nonzero if this is not the last subcommand
1966 (i.e. its output should be piped to the next one.) */
1970 #include <process.h>
1972 pexecute (search_flag
, program
, argv
, not_last
)
1979 int i
= (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1983 int i
, el
= search_flag
? 0 : 4;
1985 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1986 rf
= scmd
+ strlen(program
) + 2 + el
;
1987 sprintf (scmd
, "%s%s @%s.gp", program
,
1988 (search_flag
? "" : ".exe"), temp_filename
);
1989 argfile
= fopen (rf
, "w");
1991 pfatal_with_name (rf
);
1993 for (i
=1; argv
[i
]; i
++)
1996 for (cp
= argv
[i
]; *cp
; cp
++)
1998 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1999 fputc ('\\', argfile
);
2000 fputc (*cp
, argfile
);
2002 fputc ('\n', argfile
);
2013 perror_exec (program
);
2014 return MIN_FATAL_STATUS
<< 8;
2021 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2024 pexecute (search_flag
, program
, argv
, not_last
)
2030 int (*func
)() = (search_flag
? execv
: execvp
);
2033 int input_desc
= last_pipe_input
;
2034 int output_desc
= STDOUT_FILE_NO
;
2035 int retries
, sleep_interval
;
2037 /* If this isn't the last process, make a pipe for its output,
2038 and record it as waiting to be the input to the next process. */
2042 if (pipe (pdes
) < 0)
2043 pfatal_with_name ("pipe");
2044 output_desc
= pdes
[WRITE_PORT
];
2045 last_pipe_input
= pdes
[READ_PORT
];
2048 last_pipe_input
= STDIN_FILE_NO
;
2050 /* Fork a subprocess; wait and retry if it fails. */
2052 for (retries
= 0; retries
< 4; retries
++)
2057 sleep (sleep_interval
);
2058 sleep_interval
*= 2;
2065 pfatal_with_name ("fork");
2067 pfatal_with_name ("vfork");
2073 /* Move the input and output pipes into place, if nec. */
2074 if (input_desc
!= STDIN_FILE_NO
)
2076 close (STDIN_FILE_NO
);
2080 if (output_desc
!= STDOUT_FILE_NO
)
2082 close (STDOUT_FILE_NO
);
2084 close (output_desc
);
2087 /* Close the parent's descs that aren't wanted here. */
2088 if (last_pipe_input
!= STDIN_FILE_NO
)
2089 close (last_pipe_input
);
2091 /* Exec the program. */
2092 (*func
) (program
, argv
);
2093 perror_exec (program
);
2099 /* In the parent, after forking.
2100 Close the descriptors that we made for this child. */
2101 if (input_desc
!= STDIN_FILE_NO
)
2103 if (output_desc
!= STDOUT_FILE_NO
)
2104 close (output_desc
);
2106 /* Return child's process number. */
2111 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2113 #if defined(OS2) || defined(_WIN32)
2117 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2118 to remove the outermost set of double quotes from all arguments. */
2126 for (i
= 1; argvec
[i
] != 0; i
++)
2129 char *temp
, *newtemp
;
2132 len
= strlen (temp
);
2133 for (j
= 0; j
< len
; j
++)
2137 newtemp
= xmalloc (len
+ 2);
2138 strncpy (newtemp
, temp
, j
);
2140 strncpy (&newtemp
[j
+1], &temp
[j
], len
-j
);
2141 newtemp
[len
+1] = 0;
2151 return (const char* const*) argvec
;
2154 #define FIX_ARGV(a) fix_argv(a)
2158 #define FIX_ARGV(a) a
2163 pexecute (search_flag
, program
, argv
, not_last
)
2169 return (search_flag
? spawnv
: spawnvp
) (1, program
, FIX_ARGV (argv
));
2171 #endif /* OS2 or _WIN32 */
2174 /* Execute the command specified by the arguments on the current line of spec.
2175 When using pipes, this includes several piped-together commands
2176 with `|' between them.
2178 Return 0 if successful, -1 if failed. */
2184 int n_commands
; /* # of command. */
2188 char *prog
; /* program name. */
2189 char **argv
; /* vector of args. */
2190 int pid
; /* pid of process for this command. */
2193 struct command
*commands
; /* each command buffer with above info. */
2195 /* Count # of piped commands. */
2196 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2197 if (strcmp (argbuf
[i
], "|") == 0)
2200 /* Get storage for each command. */
2202 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2204 /* Split argbuf into its separate piped processes,
2205 and record info about each one.
2206 Also search for the programs that are to be run. */
2208 commands
[0].prog
= argbuf
[0]; /* first command. */
2209 commands
[0].argv
= &argbuf
[0];
2210 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2212 commands
[0].argv
[0] = string
;
2214 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2215 if (strcmp (argbuf
[i
], "|") == 0)
2216 { /* each command. */
2218 fatal ("-pipe not supported under MS-DOS");
2220 argbuf
[i
] = 0; /* termination of command args. */
2221 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2222 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2223 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2225 commands
[n_commands
].argv
[0] = string
;
2229 argbuf
[argbuf_index
] = 0;
2231 /* If -v, print what we are about to do, and maybe query. */
2235 /* Print each piped command as a separate line. */
2236 for (i
= 0; i
< n_commands
; i
++)
2240 for (j
= commands
[i
].argv
; *j
; j
++)
2241 fprintf (stderr
, " %s", *j
);
2243 /* Print a pipe symbol after all but the last command. */
2244 if (i
+ 1 != n_commands
)
2245 fprintf (stderr
, " |");
2246 fprintf (stderr
, "\n");
2250 fprintf (stderr
, "\nGo ahead? (y or n) ");
2254 while (getchar () != '\n') ;
2255 if (i
!= 'y' && i
!= 'Y')
2260 /* Run each piped subprocess. */
2262 last_pipe_input
= STDIN_FILE_NO
;
2263 for (i
= 0; i
< n_commands
; i
++)
2265 char *string
= commands
[i
].argv
[0];
2267 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2268 string
, commands
[i
].argv
,
2269 i
+ 1 < n_commands
);
2271 if (string
!= commands
[i
].prog
)
2277 /* Wait for all the subprocesses to finish.
2278 We don't care what order they finish in;
2279 we know that N_COMMANDS waits will get them all.
2280 Ignore subprocesses that we don't know about,
2281 since they can be spawned by the process that exec'ed us. */
2286 for (i
= 0; i
< n_commands
; )
2293 status
= pid
= commands
[i
].pid
;
2296 pid
= cwait (&status
, commands
[i
].pid
, WAIT_CHILD
);
2298 pid
= wait (&status
);
2304 for (j
= 0; j
< n_commands
; j
++)
2305 if (commands
[j
].pid
== pid
)
2310 if (WIFSIGNALED (status
))
2312 fatal ("Internal compiler error: program %s got fatal signal %d",
2313 commands
[j
].prog
, WTERMSIG (status
));
2317 else if (WIFEXITED (status
)
2318 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2328 /* Find all the switches given to us
2329 and make a vector describing them.
2330 The elements of the vector are strings, one per switch given.
2331 If a switch uses following arguments, then the `part1' field
2332 is the switch itself and the `args' field
2333 is a null-terminated vector containing the following arguments.
2334 The `live_cond' field is 1 if the switch is true in a conditional spec,
2335 -1 if false (overridden by a later switch), and is initialized to zero.
2336 The `valid' field is nonzero if any spec has looked at this switch;
2337 if it remains zero at the end of the run, it must be meaningless. */
2347 static struct switchstr
*switches
;
2349 static int n_switches
;
2357 /* Also a vector of input files specified. */
2359 static struct infile
*infiles
;
2361 static int n_infiles
;
2363 /* And a vector of corresponding output files is made up later. */
2365 static char **outfiles
;
2367 /* Create the vector `switches' and its contents.
2368 Store its length in `n_switches'. */
2371 process_command (argc
, argv
)
2377 char *spec_lang
= 0;
2378 int last_language_n_infiles
;
2380 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2385 /* Figure compiler version from version string. */
2387 compiler_version
= save_string (version_string
, strlen (version_string
));
2388 for (temp
= compiler_version
; *temp
; ++temp
)
2397 /* Set up the default search paths. */
2399 if (gcc_exec_prefix
)
2401 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2402 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2405 /* COMPILER_PATH and LIBRARY_PATH have values
2406 that are lists of directory names with colons. */
2408 temp
= getenv ("COMPILER_PATH");
2411 char *startp
, *endp
;
2412 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2414 startp
= endp
= temp
;
2417 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2419 strncpy (nstore
, startp
, endp
-startp
);
2421 strcpy (nstore
, concat (".", dir_separator_str
));
2422 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2424 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2425 nstore
[endp
-startp
+1] = 0;
2428 nstore
[endp
-startp
] = 0;
2429 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2432 endp
= startp
= endp
+ 1;
2439 temp
= getenv ("LIBRARY_PATH");
2440 if (temp
&& ! cross_compile
)
2442 char *startp
, *endp
;
2443 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2445 startp
= endp
= temp
;
2448 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2450 strncpy (nstore
, startp
, endp
-startp
);
2452 strcpy (nstore
, concat (".", dir_separator_str
));
2453 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2455 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2456 nstore
[endp
-startp
+1] = 0;
2459 nstore
[endp
-startp
] = 0;
2460 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2463 endp
= startp
= endp
+ 1;
2470 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2471 temp
= getenv ("LPATH");
2472 if (temp
&& ! cross_compile
)
2474 char *startp
, *endp
;
2475 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2477 startp
= endp
= temp
;
2480 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2482 strncpy (nstore
, startp
, endp
-startp
);
2484 strcpy (nstore
, concat (".", dir_separator_str
));
2485 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2487 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2488 nstore
[endp
-startp
+1] = 0;
2491 nstore
[endp
-startp
] = 0;
2492 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2495 endp
= startp
= endp
+ 1;
2502 /* Convert new-style -- options to old-style. */
2503 translate_options (&argc
, &argv
);
2505 /* Scan argv twice. Here, the first time, just count how many switches
2506 there will be in their vector, and how many input files in theirs.
2507 Here we also parse the switches that cc itself uses (e.g. -v). */
2509 for (i
= 1; i
< argc
; i
++)
2511 if (! strcmp (argv
[i
], "-dumpspecs"))
2513 printf ("*asm:\n%s\n\n", asm_spec
);
2514 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2515 printf ("*cpp:\n%s\n\n", cpp_spec
);
2516 printf ("*cc1:\n%s\n\n", cc1_spec
);
2517 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2518 printf ("*endfile:\n%s\n\n", endfile_spec
);
2519 printf ("*link:\n%s\n\n", link_spec
);
2520 printf ("*lib:\n%s\n\n", lib_spec
);
2521 printf ("*libgcc:\n%s\n\n", libgcc_spec
);
2522 printf ("*startfile:\n%s\n\n", startfile_spec
);
2523 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2524 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2525 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2526 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2527 printf ("*multilib:\n%s\n\n", multilib_select
);
2531 else if (! strcmp (argv
[i
], "-dumpversion"))
2533 printf ("%s\n", version_string
);
2536 else if (! strcmp (argv
[i
], "-dumpmachine"))
2538 printf ("%s\n", spec_machine
);
2541 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2542 print_search_dirs
= 1;
2543 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2544 print_file_name
= "libgcc.a";
2545 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2546 print_file_name
= argv
[i
] + 17;
2547 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2548 print_prog_name
= argv
[i
] + 17;
2549 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2550 print_multi_lib
= 1;
2551 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2552 print_multi_directory
= 1;
2553 else if (! strncmp (argv
[i
], "-Wa,", 4))
2556 /* Pass the rest of this option to the assembler. */
2558 n_assembler_options
++;
2559 if (!assembler_options
)
2561 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2564 = (char **) xrealloc (assembler_options
,
2565 n_assembler_options
* sizeof (char **));
2567 /* Split the argument at commas. */
2569 for (j
= 4; argv
[i
][j
]; j
++)
2570 if (argv
[i
][j
] == ',')
2572 assembler_options
[n_assembler_options
- 1]
2573 = save_string (argv
[i
] + prev
, j
- prev
);
2574 n_assembler_options
++;
2576 = (char **) xrealloc (assembler_options
,
2577 n_assembler_options
* sizeof (char **));
2580 /* Record the part after the last comma. */
2581 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2583 else if (! strncmp (argv
[i
], "-Wp,", 4))
2586 /* Pass the rest of this option to the preprocessor. */
2588 n_preprocessor_options
++;
2589 if (!preprocessor_options
)
2590 preprocessor_options
2591 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2593 preprocessor_options
2594 = (char **) xrealloc (preprocessor_options
,
2595 n_preprocessor_options
* sizeof (char **));
2597 /* Split the argument at commas. */
2599 for (j
= 4; argv
[i
][j
]; j
++)
2600 if (argv
[i
][j
] == ',')
2602 preprocessor_options
[n_preprocessor_options
- 1]
2603 = save_string (argv
[i
] + prev
, j
- prev
);
2604 n_preprocessor_options
++;
2605 preprocessor_options
2606 = (char **) xrealloc (preprocessor_options
,
2607 n_preprocessor_options
* sizeof (char **));
2610 /* Record the part after the last comma. */
2611 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2613 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2614 /* The +e options to the C++ front-end. */
2616 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2619 /* Split the argument at commas. */
2620 for (j
= 3; argv
[i
][j
]; j
++)
2621 n_infiles
+= (argv
[i
][j
] == ',');
2623 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2626 fatal ("argument to `-Xlinker' is missing");
2631 else if (strncmp (argv
[i
], "-l", 2) == 0)
2633 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2635 register char *p
= &argv
[i
][1];
2636 register int c
= *p
;
2641 if (p
[1] == 0 && i
+ 1 == argc
)
2642 fatal ("argument to `-b' is missing");
2644 spec_machine
= argv
[++i
];
2646 spec_machine
= p
+ 1;
2651 int *temp
= (int *) xmalloc (sizeof (int));
2653 if (p
[1] == 0 && i
+ 1 == argc
)
2654 fatal ("argument to `-B' is missing");
2659 add_prefix (&exec_prefixes
, value
, 1, 0, temp
);
2660 add_prefix (&startfile_prefixes
, value
, 1, 0, temp
);
2661 add_prefix (&include_prefixes
, concat (value
, "include"),
2664 /* As a kludge, if the arg is "[foo/]stageN/", just add
2665 "[foo/]include" to the include prefix. */
2667 int len
= strlen (value
);
2670 && (value
[len
- 8] == '/'
2671 || value
[len
- 8] == DIR_SEPARATOR
)))
2672 && strncmp (value
+ len
- 7, "stage", 5) == 0
2673 && isdigit (value
[len
- 2])
2674 && (value
[len
- 1] == '/'
2675 || value
[len
- 1] == DIR_SEPARATOR
))
2678 add_prefix (&include_prefixes
, "include", 1, 0, 0);
2681 char *string
= xmalloc (len
+ 1);
2682 strncpy (string
, value
, len
-7);
2683 strcat (string
, "include");
2684 add_prefix (&include_prefixes
, string
, 1, 0, 0);
2691 case 'v': /* Print our subcommands and print versions. */
2693 /* If they do anything other than exactly `-v', don't set
2694 verbose_flag; rather, continue on to give the error. */
2701 if (p
[1] == 0 && i
+ 1 == argc
)
2702 fatal ("argument to `-V' is missing");
2704 spec_version
= argv
[++i
];
2706 spec_version
= p
+ 1;
2707 compiler_version
= spec_version
;
2711 if (!strcmp (p
, "save-temps"))
2713 save_temps_flag
= 1;
2720 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2721 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2722 else if (WORD_SWITCH_TAKES_ARG (p
))
2723 i
+= WORD_SWITCH_TAKES_ARG (p
);
2730 /* Set up the search paths before we go looking for config files. */
2732 /* These come before the md prefixes so that we will find gcc's subcommands
2733 (such as cpp) rather than those of the host system. */
2734 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2735 as well as trying the machine and the version. */
2737 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2738 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2741 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2742 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2744 tooldir_prefix
= concat3 (tooldir_base_prefix
, spec_machine
,
2747 /* If tooldir is relative, base it on exec_prefixes. A relative
2748 tooldir lets us move the installed tree as a unit.
2750 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2751 directories, so that we can search both the user specified directory
2752 and the standard place. */
2754 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2756 if (gcc_exec_prefix
)
2758 char *gcc_exec_tooldir_prefix
2759 = concat6 (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2760 spec_version
, dir_separator_str
, tooldir_prefix
);
2762 add_prefix (&exec_prefixes
,
2763 concat3 (gcc_exec_tooldir_prefix
, "bin",
2766 add_prefix (&startfile_prefixes
,
2767 concat3 (gcc_exec_tooldir_prefix
, "lib",
2772 tooldir_prefix
= concat6 (standard_exec_prefix
, spec_machine
,
2773 dir_separator_str
, spec_version
,
2774 dir_separator_str
, tooldir_prefix
);
2777 add_prefix (&exec_prefixes
,
2778 concat3 (tooldir_prefix
, "bin", dir_separator_str
),
2780 add_prefix (&startfile_prefixes
,
2781 concat3 (tooldir_prefix
, "lib", dir_separator_str
),
2784 /* More prefixes are enabled in main, after we read the specs file
2785 and determine whether this is cross-compilation or not. */
2788 /* Then create the space for the vectors and scan again. */
2790 switches
= ((struct switchstr
*)
2791 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2792 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2795 last_language_n_infiles
= -1;
2797 /* This, time, copy the text of each switch and store a pointer
2798 to the copy in the vector of switches.
2799 Store all the infiles in their vector. */
2801 for (i
= 1; i
< argc
; i
++)
2803 /* Just skip the switches that were handled by the preceding loop. */
2804 if (! strncmp (argv
[i
], "-Wa,", 4))
2806 else if (! strncmp (argv
[i
], "-Wp,", 4))
2808 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2810 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2812 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2814 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2816 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2818 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2820 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2822 /* Compensate for the +e options to the C++ front-end;
2823 they're there simply for cfront call-compatibility. We do
2824 some magic in default_compilers to pass them down properly.
2825 Note we deliberately start at the `+' here, to avoid passing
2826 -e0 or -e1 down into the linker. */
2827 switches
[n_switches
].part1
= &argv
[i
][0];
2828 switches
[n_switches
].args
= 0;
2829 switches
[n_switches
].live_cond
= 0;
2830 switches
[n_switches
].valid
= 0;
2833 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2836 /* Split the argument at commas. */
2838 for (j
= 4; argv
[i
][j
]; j
++)
2839 if (argv
[i
][j
] == ',')
2841 infiles
[n_infiles
].language
= 0;
2842 infiles
[n_infiles
++].name
2843 = save_string (argv
[i
] + prev
, j
- prev
);
2846 /* Record the part after the last comma. */
2847 infiles
[n_infiles
].language
= 0;
2848 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2850 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2852 infiles
[n_infiles
].language
= 0;
2853 infiles
[n_infiles
++].name
= argv
[++i
];
2855 else if (strncmp (argv
[i
], "-l", 2) == 0)
2857 infiles
[n_infiles
].language
= 0;
2858 infiles
[n_infiles
++].name
= argv
[i
];
2860 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2862 register char *p
= &argv
[i
][1];
2863 register int c
= *p
;
2865 if (c
== 'B' || c
== 'b' || c
== 'V')
2867 /* Skip a separate arg, if any. */
2874 if (p
[1] == 0 && i
+ 1 == argc
)
2875 fatal ("argument to `-x' is missing");
2877 spec_lang
= argv
[++i
];
2880 if (! strcmp (spec_lang
, "none"))
2881 /* Suppress the warning if -xnone comes after the last input
2882 file, because alternate command interfaces like g++ might
2883 find it useful to place -xnone after each input file. */
2886 last_language_n_infiles
= n_infiles
;
2889 switches
[n_switches
].part1
= p
;
2890 /* Deal with option arguments in separate argv elements. */
2891 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2892 || WORD_SWITCH_TAKES_ARG (p
))
2895 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2899 /* Count only the option arguments in separate argv elements. */
2900 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2902 if (i
+ n_args
>= argc
)
2903 fatal ("argument to `-%s' is missing", p
);
2904 switches
[n_switches
].args
2905 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2907 switches
[n_switches
].args
[j
++] = argv
[++i
];
2908 /* Null-terminate the vector. */
2909 switches
[n_switches
].args
[j
] = 0;
2911 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2913 /* On some systems, ld cannot handle -o or -L without space.
2914 So split the -o or -L from its argument. */
2915 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2916 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2917 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2918 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2919 switches
[n_switches
].args
[1] = 0;
2922 switches
[n_switches
].args
= 0;
2924 switches
[n_switches
].live_cond
= 0;
2925 switches
[n_switches
].valid
= 0;
2926 /* This is always valid, since gcc.c itself understands it. */
2927 if (!strcmp (p
, "save-temps"))
2928 switches
[n_switches
].valid
= 1;
2933 #ifdef HAVE_OBJECT_SUFFIX
2934 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2935 if (strlen (argv
[i
]) > 2
2936 && argv
[i
][strlen (argv
[i
]) - 2] == '.'
2937 && argv
[i
][strlen (argv
[i
]) - 1] == 'o')
2941 for (j
= 0; j
< strlen (argv
[i
]) - 2; j
++)
2942 obstack_1grow (&obstack
, argv
[i
][j
]);
2944 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2945 obstack_1grow (&obstack
, 0);
2946 argv
[i
] = obstack_finish (&obstack
);
2950 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
2952 perror_with_name (argv
[i
]);
2957 infiles
[n_infiles
].language
= spec_lang
;
2958 infiles
[n_infiles
++].name
= argv
[i
];
2963 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2964 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2966 switches
[n_switches
].part1
= 0;
2967 infiles
[n_infiles
].name
= 0;
2970 /* Process a spec string, accumulating and running commands. */
2972 /* These variables describe the input file name.
2973 input_file_number is the index on outfiles of this file,
2974 so that the output file name can be stored for later use by %o.
2975 input_basename is the start of the part of the input file
2976 sans all directory names, and basename_length is the number
2977 of characters starting there excluding the suffix .c or whatever. */
2979 static char *input_filename
;
2980 static int input_file_number
;
2981 static int input_filename_length
;
2982 static int basename_length
;
2983 static char *input_basename
;
2984 static char *input_suffix
;
2986 /* These are variables used within do_spec and do_spec_1. */
2988 /* Nonzero if an arg has been started and not yet terminated
2989 (with space, tab or newline). */
2990 static int arg_going
;
2992 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2993 is a temporary file name. */
2994 static int delete_this_arg
;
2996 /* Nonzero means %w has been seen; the next arg to be terminated
2997 is the output file name of this compilation. */
2998 static int this_is_output_file
;
3000 /* Nonzero means %s has been seen; the next arg to be terminated
3001 is the name of a library file and we should try the standard
3002 search dirs for it. */
3003 static int this_is_library_file
;
3005 /* Nonzero means that the input of this command is coming from a pipe. */
3006 static int input_from_pipe
;
3008 /* Process the spec SPEC and run the commands specified therein.
3009 Returns 0 if the spec is successfully processed; -1 if failed. */
3019 delete_this_arg
= 0;
3020 this_is_output_file
= 0;
3021 this_is_library_file
= 0;
3022 input_from_pipe
= 0;
3024 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3026 /* Force out any unfinished command.
3027 If -pipe, this forces out the last command if it ended in `|'. */
3030 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3033 if (argbuf_index
> 0)
3040 /* Process the sub-spec SPEC as a portion of a larger spec.
3041 This is like processing a whole spec except that we do
3042 not initialize at the beginning and we do not supply a
3043 newline by default at the end.
3044 INSWITCH nonzero means don't process %-sequences in SPEC;
3045 in this case, % is treated as an ordinary character.
3046 This is used while substituting switches.
3047 INSWITCH nonzero also causes SPC not to terminate an argument.
3049 Value is zero unless a line was finished
3050 and the command on that line reported an error. */
3053 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3056 char *soft_matched_part
;
3058 register char *p
= spec
;
3065 /* If substituting a switch, treat all chars like letters.
3066 Otherwise, NL, SPC, TAB and % are special. */
3067 switch (inswitch
? 'a' : c
)
3070 /* End of line: finish any pending argument,
3071 then run the pending command if one has been started. */
3074 obstack_1grow (&obstack
, 0);
3075 string
= obstack_finish (&obstack
);
3076 if (this_is_library_file
)
3077 string
= find_file (string
);
3078 store_arg (string
, delete_this_arg
, this_is_output_file
);
3079 if (this_is_output_file
)
3080 outfiles
[input_file_number
] = string
;
3084 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3086 for (i
= 0; i
< n_switches
; i
++)
3087 if (!strcmp (switches
[i
].part1
, "pipe"))
3090 /* A `|' before the newline means use a pipe here,
3091 but only if -pipe was specified.
3092 Otherwise, execute now and don't pass the `|' as an arg. */
3095 input_from_pipe
= 1;
3096 switches
[i
].valid
= 1;
3103 if (argbuf_index
> 0)
3109 /* Reinitialize for a new command, and for a new argument. */
3112 delete_this_arg
= 0;
3113 this_is_output_file
= 0;
3114 this_is_library_file
= 0;
3115 input_from_pipe
= 0;
3119 /* End any pending argument. */
3122 obstack_1grow (&obstack
, 0);
3123 string
= obstack_finish (&obstack
);
3124 if (this_is_library_file
)
3125 string
= find_file (string
);
3126 store_arg (string
, delete_this_arg
, this_is_output_file
);
3127 if (this_is_output_file
)
3128 outfiles
[input_file_number
] = string
;
3132 obstack_1grow (&obstack
, c
);
3138 /* Space or tab ends an argument if one is pending. */
3141 obstack_1grow (&obstack
, 0);
3142 string
= obstack_finish (&obstack
);
3143 if (this_is_library_file
)
3144 string
= find_file (string
);
3145 store_arg (string
, delete_this_arg
, this_is_output_file
);
3146 if (this_is_output_file
)
3147 outfiles
[input_file_number
] = string
;
3149 /* Reinitialize for a new argument. */
3151 delete_this_arg
= 0;
3152 this_is_output_file
= 0;
3153 this_is_library_file
= 0;
3160 fatal ("Invalid specification! Bug in cc.");
3163 obstack_grow (&obstack
, input_basename
, basename_length
);
3168 delete_this_arg
= 2;
3171 /* Dump out the directories specified with LIBRARY_PATH,
3172 followed by the absolute directories
3173 that we search for startfiles. */
3176 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3178 char *buffer
= (char *) xmalloc (bufsize
);
3181 for (; pl
; pl
= pl
->next
)
3183 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3184 /* Used on systems which record the specified -L dirs
3185 and use them to search for dynamic linking. */
3186 /* Relative directories always come from -B,
3187 and it is better not to use them for searching
3188 at run time. In particular, stage1 loses */
3189 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3192 /* Try subdirectory if there is one. */
3193 if (multilib_dir
!= NULL
)
3197 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3199 bufsize
= (strlen (pl
->prefix
)
3200 + strlen (machine_suffix
)) * 2 + 1;
3201 buffer
= (char *) xrealloc (buffer
, bufsize
);
3202 strcpy (buffer
, pl
->prefix
);
3203 strcat (buffer
, machine_suffix
);
3204 if (is_directory (buffer
, multilib_dir
, 1))
3206 do_spec_1 ("-L", 0, NULL_PTR
);
3207 #ifdef SPACE_AFTER_L_OPTION
3208 do_spec_1 (" ", 0, NULL_PTR
);
3210 do_spec_1 (buffer
, 1, NULL_PTR
);
3211 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3212 /* Make this a separate argument. */
3213 do_spec_1 (" ", 0, NULL_PTR
);
3216 if (!pl
->require_machine_suffix
)
3218 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3220 do_spec_1 ("-L", 0, NULL_PTR
);
3221 #ifdef SPACE_AFTER_L_OPTION
3222 do_spec_1 (" ", 0, NULL_PTR
);
3224 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3225 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3226 /* Make this a separate argument. */
3227 do_spec_1 (" ", 0, NULL_PTR
);
3233 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3235 do_spec_1 ("-L", 0, NULL_PTR
);
3236 #ifdef SPACE_AFTER_L_OPTION
3237 do_spec_1 (" ", 0, NULL_PTR
);
3239 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3240 /* Remove slash from machine_suffix. */
3241 if (strlen (machine_suffix
) >= bufsize
)
3242 bufsize
= strlen (machine_suffix
) * 2 + 1;
3243 buffer
= (char *) xrealloc (buffer
, bufsize
);
3244 strcpy (buffer
, machine_suffix
);
3245 idx
= strlen (buffer
);
3246 if (buffer
[idx
- 1] == '/'
3247 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3248 buffer
[idx
- 1] = 0;
3249 do_spec_1 (buffer
, 1, NULL_PTR
);
3250 /* Make this a separate argument. */
3251 do_spec_1 (" ", 0, NULL_PTR
);
3254 if (!pl
->require_machine_suffix
)
3256 if (is_directory (pl
->prefix
, "", 1))
3258 do_spec_1 ("-L", 0, NULL_PTR
);
3259 #ifdef SPACE_AFTER_L_OPTION
3260 do_spec_1 (" ", 0, NULL_PTR
);
3262 /* Remove slash from pl->prefix. */
3263 if (strlen (pl
->prefix
) >= bufsize
)
3264 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3265 buffer
= (char *) xrealloc (buffer
, bufsize
);
3266 strcpy (buffer
, pl
->prefix
);
3267 idx
= strlen (buffer
);
3268 if (buffer
[idx
- 1] == '/'
3269 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3270 buffer
[idx
- 1] = 0;
3271 do_spec_1 (buffer
, 1, NULL_PTR
);
3272 /* Make this a separate argument. */
3273 do_spec_1 (" ", 0, NULL_PTR
);
3282 /* {...:%efoo} means report an error with `foo' as error message
3283 and don't execute any more commands for this file. */
3287 while (*p
!= 0 && *p
!= '\n') p
++;
3288 buf
= (char *) alloca (p
- q
+ 1);
3289 strncpy (buf
, q
, p
- q
);
3299 if (save_temps_flag
)
3301 obstack_grow (&obstack
, input_basename
, basename_length
);
3302 delete_this_arg
= 0;
3306 #ifdef MKTEMP_EACH_FILE
3307 /* ??? This has a problem: the total number of
3308 values mktemp can return is limited.
3309 That matters for the names of object files.
3310 In 2.4, do something about that. */
3311 struct temp_name
*t
;
3313 while (*p
== '.' || isalpha (*p
)
3314 || (p
[0] == '%' && p
[1] == 'O'))
3317 /* See if we already have an association of %g/%u/%U and
3319 for (t
= temp_names
; t
; t
= t
->next
)
3320 if (t
->length
== p
- suffix
3321 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3322 && t
->unique
== (c
!= 'g'))
3325 /* Make a new association if needed. %u requires one. */
3326 if (t
== 0 || c
== 'u')
3330 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3331 t
->next
= temp_names
;
3334 t
->length
= p
- suffix
;
3335 t
->suffix
= save_string (suffix
, p
- suffix
);
3336 t
->unique
= (c
!= 'g');
3337 choose_temp_base ();
3338 t
->filename
= temp_filename
;
3339 t
->filename_length
= temp_filename_length
;
3342 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3343 delete_this_arg
= 1;
3345 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3346 if (c
== 'u' || c
== 'U')
3352 sprintf (buff
, "%d", unique
);
3353 obstack_grow (&obstack
, buff
, strlen (buff
));
3356 delete_this_arg
= 1;
3362 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3368 struct prefix_list
*pl
= include_prefixes
.plist
;
3370 if (gcc_exec_prefix
)
3372 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3373 /* Make this a separate argument. */
3374 do_spec_1 (" ", 0, NULL_PTR
);
3375 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3376 do_spec_1 (" ", 0, NULL_PTR
);
3379 for (; pl
; pl
= pl
->next
)
3381 do_spec_1 ("-isystem", 1, NULL_PTR
);
3382 /* Make this a separate argument. */
3383 do_spec_1 (" ", 0, NULL_PTR
);
3384 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3385 do_spec_1 (" ", 0, NULL_PTR
);
3391 for (i
= 0; i
< n_infiles
; i
++)
3392 store_arg (outfiles
[i
], 0, 0);
3396 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3401 this_is_library_file
= 1;
3405 this_is_output_file
= 1;
3410 int index
= argbuf_index
;
3411 /* Handle the {...} following the %W. */
3414 p
= handle_braces (p
+ 1);
3417 /* If any args were output, mark the last one for deletion
3419 if (argbuf_index
!= index
)
3420 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3424 /* %x{OPTION} records OPTION for %X to output. */
3430 /* Skip past the option value and make a copy. */
3435 string
= save_string (p1
+ 1, p
- p1
- 2);
3437 /* See if we already recorded this option. */
3438 for (i
= 0; i
< n_linker_options
; i
++)
3439 if (! strcmp (string
, linker_options
[i
]))
3445 /* This option is new; add it. */
3447 if (!linker_options
)
3449 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3452 = (char **) xrealloc (linker_options
,
3453 n_linker_options
* sizeof (char **));
3455 linker_options
[n_linker_options
- 1] = string
;
3459 /* Dump out the options accumulated previously using %x. */
3461 for (i
= 0; i
< n_linker_options
; i
++)
3463 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3464 /* Make each accumulated option a separate argument. */
3465 do_spec_1 (" ", 0, NULL_PTR
);
3469 /* Dump out the options accumulated previously using -Wa,. */
3471 for (i
= 0; i
< n_assembler_options
; i
++)
3473 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3474 /* Make each accumulated option a separate argument. */
3475 do_spec_1 (" ", 0, NULL_PTR
);
3479 /* Dump out the options accumulated previously using -Wp,. */
3481 for (i
= 0; i
< n_preprocessor_options
; i
++)
3483 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3484 /* Make each accumulated option a separate argument. */
3485 do_spec_1 (" ", 0, NULL_PTR
);
3489 /* Here are digits and numbers that just process
3490 a certain constant string as a spec. */
3493 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3499 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3505 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3511 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3517 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3523 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3529 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3535 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3541 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3547 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3554 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3558 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3562 if (! strncmp (y
, "-D", 2))
3563 /* Copy the whole option. */
3564 while (*y
&& *y
!= ' ' && *y
!= '\t')
3566 else if (*y
== ' ' || *y
== '\t')
3567 /* Copy whitespace to the result. */
3569 /* Don't copy other options. */
3576 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3584 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3588 /* Copy all of CPP_PREDEFINES into BUF,
3589 but put __ after every -D and at the end of each arg. */
3593 if (! strncmp (y
, "-D", 2))
3601 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3603 /* Stick __ at front of macro name. */
3606 /* Arrange to stick __ at the end as well. */
3610 /* Copy the macro name. */
3611 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3620 /* Copy the value given, if any. */
3621 while (*y
&& *y
!= ' ' && *y
!= '\t')
3624 else if (*y
== ' ' || *y
== '\t')
3625 /* Copy whitespace to the result. */
3627 /* Don't copy -A options */
3633 /* Copy all of CPP_PREDEFINES into BUF,
3634 but put __ after every -D. */
3638 if (! strncmp (y
, "-D", 2))
3643 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3645 /* Stick -D__ at front of macro name. */
3651 /* Copy the macro name. */
3652 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3655 /* Copy the value given, if any. */
3656 while (*y
&& *y
!= ' ' && *y
!= '\t')
3661 /* Do not copy this macro - we have just done it before */
3662 while (*y
&& *y
!= ' ' && *y
!= '\t')
3666 else if (*y
== ' ' || *y
== '\t')
3667 /* Copy whitespace to the result. */
3669 /* Don't copy -A options */
3675 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3679 if (! strncmp (y
, "-A", 2))
3680 /* Copy the whole option. */
3681 while (*y
&& *y
!= ' ' && *y
!= '\t')
3683 else if (*y
== ' ' || *y
== '\t')
3684 /* Copy whitespace to the result. */
3686 /* Don't copy other options. */
3693 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3700 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3705 /* Here we define characters other than letters and digits. */
3708 p
= handle_braces (p
);
3714 obstack_1grow (&obstack
, '%');
3718 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3719 do_spec_1 (" ", 0, NULL_PTR
);
3722 /* Process a string found as the value of a spec given by name.
3723 This feature allows individual machine descriptions
3724 to add and use their own specs.
3725 %[...] modifies -D options the way %P does;
3726 %(...) uses the spec unmodified. */
3731 struct spec_list
*sl
;
3734 /* The string after the S/P is the name of a spec that is to be
3736 while (*p
&& *p
!= ')' && *p
!= ']')
3739 /* See if it's in the list */
3740 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3741 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3751 value
= do_spec_1 (name
, 0, NULL_PTR
);
3757 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3761 /* Copy all of NAME into BUF, but put __ after
3762 every -D and at the end of each arg, */
3765 if (! strncmp (y
, "-D", 2))
3773 else if (*y
== ' ' || *y
== 0)
3787 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3793 /* Discard the closing paren or bracket. */
3801 int c1
= *p
++; /* Select first or second version number. */
3802 char *v
= compiler_version
;
3804 /* If desired, advance to second version number. */
3807 /* Set P after the first period. */
3808 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3813 /* Set Q at the next period or at the end. */
3815 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3817 /* Empty string means zero. */
3823 /* Put that part into the command. */
3824 obstack_grow (&obstack
, v
, q
- v
);
3830 if (input_from_pipe
)
3831 do_spec_1 ("-", 0, NULL_PTR
);
3840 /* Backslash: treat next character as ordinary. */
3845 /* Ordinary character: put it into the current argument. */
3846 obstack_1grow (&obstack
, c
);
3850 return 0; /* End of string */
3853 /* Return 0 if we call do_spec_1 and that returns -1. */
3866 /* A `|' after the open-brace means,
3867 if the test fails, output a single minus sign rather than nothing.
3868 This is used in %{|!pipe:...}. */
3872 /* A `!' after the open-brace negates the condition:
3873 succeed if the specified switch is not present. */
3877 /* A `.' after the open-brace means test against the current suffix. */
3887 while (*p
!= ':' && *p
!= '}') p
++;
3890 register int count
= 1;
3908 int found
= (input_suffix
!= 0
3909 && strlen (input_suffix
) == p
- filter
3910 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3916 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3921 else if (p
[-1] == '*' && p
[0] == '}')
3923 /* Substitute all matching switches as separate args. */
3926 for (i
= 0; i
< n_switches
; i
++)
3927 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3928 && check_live_switch (i
, p
- filter
))
3933 /* Test for presence of the specified switch. */
3937 /* If name specified ends in *, as in {x*:...},
3938 check for %* and handle that case. */
3939 if (p
[-1] == '*' && !negate
)
3944 /* First see whether we have %*. */
3948 if (*r
== '%' && r
[1] == '*')
3952 /* If we do, handle that case. */
3955 /* Substitute all matching switches as separate args.
3956 But do this by substituting for %*
3957 in the text that follows the colon. */
3959 unsigned hard_match_len
= p
- filter
- 1;
3960 char *string
= save_string (p
+ 1, q
- p
- 2);
3962 for (i
= 0; i
< n_switches
; i
++)
3963 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3964 && check_live_switch (i
, -1))
3966 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3967 /* Pass any arguments this switch has. */
3975 /* If name specified ends in *, as in {x*:...},
3976 check for presence of any switch name starting with x. */
3979 for (i
= 0; i
< n_switches
; i
++)
3981 unsigned hard_match_len
= p
- filter
- 1;
3983 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3984 && check_live_switch (i
, hard_match_len
))
3990 /* Otherwise, check for presence of exact name specified. */
3993 for (i
= 0; i
< n_switches
; i
++)
3995 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3996 && switches
[i
].part1
[p
- filter
] == 0
3997 && check_live_switch (i
, -1))
4005 /* If it is as desired (present for %{s...}, absent for %{-s...})
4006 then substitute either the switch or the specified
4007 conditional text. */
4008 if (present
!= negate
)
4016 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4022 /* Here if a %{|...} conditional fails: output a minus sign,
4023 which means "standard output" or "standard input". */
4024 do_spec_1 ("-", 0, NULL_PTR
);
4031 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4032 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4033 spec, or -1 if either exact match or %* is used.
4035 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4036 whose value does not begin with "no-" is obsoleted by the same value
4037 with the "no-", similarly for a switch with the "no-" prefix. */
4040 check_live_switch (switchnum
, prefix_length
)
4044 char *name
= switches
[switchnum
].part1
;
4047 /* In the common case of {<at-most-one-letter>*}, a negating
4048 switch would always match, so ignore that case. We will just
4049 send the conflicting switches to the compiler phase. */
4050 if (prefix_length
>= 0 && prefix_length
<= 1)
4053 /* If we already processed this switch and determined if it was
4054 live or not, return our past determination. */
4055 if (switches
[switchnum
].live_cond
!= 0)
4056 return switches
[switchnum
].live_cond
> 0;
4058 /* Now search for duplicate in a manner that depends on the name. */
4062 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4063 if (switches
[i
].part1
[0] == 'O')
4065 switches
[switchnum
].valid
= 1;
4066 switches
[switchnum
].live_cond
= -1;
4071 case 'W': case 'f': case 'm':
4072 if (! strncmp (name
+ 1, "no-", 3))
4074 /* We have Xno-YYY, search for XYYY. */
4075 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4076 if (switches
[i
].part1
[0] == name
[0]
4077 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4079 switches
[switchnum
].valid
= 1;
4080 switches
[switchnum
].live_cond
= -1;
4086 /* We have XYYY, search for Xno-YYY. */
4087 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4088 if (switches
[i
].part1
[0] == name
[0]
4089 && switches
[i
].part1
[1] == 'n'
4090 && switches
[i
].part1
[2] == 'o'
4091 && switches
[i
].part1
[3] == '-'
4092 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4094 switches
[switchnum
].valid
= 1;
4095 switches
[switchnum
].live_cond
= -1;
4102 /* Otherwise the switch is live. */
4103 switches
[switchnum
].live_cond
= 1;
4107 /* Pass a switch to the current accumulating command
4108 in the same form that we received it.
4109 SWITCHNUM identifies the switch; it is an index into
4110 the vector of switches gcc received, which is `switches'.
4111 This cannot fail since it never finishes a command line.
4113 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4116 give_switch (switchnum
, omit_first_word
)
4118 int omit_first_word
;
4120 if (!omit_first_word
)
4122 do_spec_1 ("-", 0, NULL_PTR
);
4123 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4125 do_spec_1 (" ", 0, NULL_PTR
);
4126 if (switches
[switchnum
].args
!= 0)
4129 for (p
= switches
[switchnum
].args
; *p
; p
++)
4131 do_spec_1 (*p
, 1, NULL_PTR
);
4132 do_spec_1 (" ", 0, NULL_PTR
);
4135 switches
[switchnum
].valid
= 1;
4138 /* Search for a file named NAME trying various prefixes including the
4139 user's -B prefix and some standard ones.
4140 Return the absolute file name found. If nothing is found, return NAME. */
4148 /* Try multilib_dir if it is defined. */
4149 if (multilib_dir
!= NULL
)
4153 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4154 strcpy (try, multilib_dir
);
4155 strcat (try, dir_separator_str
);
4158 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4160 /* If we don't find it in the multi library dir, then fall
4161 through and look for it in the normal places. */
4162 if (newname
!= NULL
)
4166 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4167 return newname
? newname
: name
;
4170 /* Determine whether a directory exists. If LINKER, return 0 for
4171 certain fixed names not needed by the linker. If not LINKER, it is
4172 only important to return 0 if the host machine has a small ARG_MAX
4176 is_directory (path1
, path2
, linker
)
4181 int len1
= strlen (path1
);
4182 int len2
= strlen (path2
);
4183 char *path
= (char *) alloca (3 + len1
+ len2
);
4187 #ifndef SMALL_ARG_MAX
4192 /* Construct the path from the two parts. Ensure the string ends with "/.".
4193 The resulting path will be a directory even if the given path is a
4195 bcopy (path1
, path
, len1
);
4196 bcopy (path2
, path
+ len1
, len2
);
4197 cp
= path
+ len1
+ len2
;
4198 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4199 *cp
++ = DIR_SEPARATOR
;
4203 /* Exclude directories that the linker is known to search. */
4206 && strcmp (path
, concat4 (dir_separator_str
, "lib",
4207 dir_separator_str
, ".")) == 0)
4209 && strcmp (path
, concat6 (dir_separator_str
, "usr",
4210 dir_separator_str
, "lib",
4211 dir_separator_str
, ".")) == 0)))
4214 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4217 /* On fatal signals, delete all the temporary files. */
4220 fatal_error (signum
)
4223 signal (signum
, SIG_DFL
);
4224 delete_failure_queue ();
4225 delete_temp_files ();
4226 /* Get the same signal again, this time not handled,
4227 so its normal effect occurs. */
4228 kill (getpid (), signum
);
4239 int linker_was_run
= 0;
4240 char *explicit_link_files
;
4244 p
= argv
[0] + strlen (argv
[0]);
4245 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4248 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4249 signal (SIGINT
, fatal_error
);
4251 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4252 signal (SIGHUP
, fatal_error
);
4254 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4255 signal (SIGTERM
, fatal_error
);
4257 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4258 signal (SIGPIPE
, fatal_error
);
4262 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4264 obstack_init (&obstack
);
4266 /* Set up to remember the pathname of gcc and any options
4267 needed for collect. We use argv[0] instead of programname because
4268 we need the complete pathname. */
4269 obstack_init (&collect_obstack
);
4270 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4271 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4272 putenv (obstack_finish (&collect_obstack
));
4274 #ifdef INIT_ENVIRONMENT
4275 /* Set up any other necessary machine specific environment variables. */
4276 putenv (INIT_ENVIRONMENT
);
4279 /* Choose directory for temp files. */
4281 choose_temp_base ();
4283 /* Make a table of what switches there are (switches, n_switches).
4284 Make a table of specified input files (infiles, n_infiles).
4285 Decode switches that are handled locally. */
4287 process_command (argc
, argv
);
4289 /* Initialize the vector of specs to just the default.
4290 This means one element containing 0s, as a terminator. */
4292 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4293 bcopy ((char *) default_compilers
, (char *) compilers
,
4294 sizeof default_compilers
);
4295 n_compilers
= n_default_compilers
;
4297 /* Read specs from a file if there is one. */
4299 machine_suffix
= concat4 (spec_machine
, dir_separator_str
,
4300 spec_version
, dir_separator_str
);
4301 just_machine_suffix
= concat (spec_machine
, dir_separator_str
);
4303 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4304 /* Read the specs file unless it is a default one. */
4305 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4306 read_specs (specs_file
);
4308 /* If not cross-compiling, look for startfiles in the standard places. */
4309 /* The fact that these are done here, after reading the specs file,
4310 means that it cannot be found in these directories.
4311 But that's okay. It should never be there anyway. */
4314 #ifdef MD_EXEC_PREFIX
4315 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4316 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4319 #ifdef MD_STARTFILE_PREFIX
4320 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4323 #ifdef MD_STARTFILE_PREFIX_1
4324 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4327 /* If standard_startfile_prefix is relative, base it on
4328 standard_exec_prefix. This lets us move the installed tree
4329 as a unit. If GCC_EXEC_PREFIX is defined, base
4330 standard_startfile_prefix on that as well. */
4331 if (*standard_startfile_prefix
== '/'
4332 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4333 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4337 if (gcc_exec_prefix
)
4338 add_prefix (&startfile_prefixes
,
4339 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4341 add_prefix (&startfile_prefixes
,
4342 concat3 (standard_exec_prefix
,
4344 standard_startfile_prefix
),
4348 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4350 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4352 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4353 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4358 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4359 add_prefix (&startfile_prefixes
,
4360 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4364 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4365 if (gcc_exec_prefix
)
4367 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4368 + strlen (spec_version
)
4369 + strlen (spec_machine
) + 3);
4370 strcpy (temp
, gcc_exec_prefix
);
4371 strcat (temp
, spec_machine
);
4372 strcat (temp
, dir_separator_str
);
4373 strcat (temp
, spec_version
);
4374 strcat (temp
, dir_separator_str
);
4375 gcc_exec_prefix
= temp
;
4378 /* Now we have the specs.
4379 Set the `valid' bits for switches that match anything in any spec. */
4381 validate_all_switches ();
4383 /* Now that we have the switches and the specs, set
4384 the subdirectory based on the options. */
4385 set_multilib_dir ();
4387 /* Warn about any switches that no pass was interested in. */
4389 for (i
= 0; i
< n_switches
; i
++)
4390 if (! switches
[i
].valid
)
4391 error ("unrecognized option `-%s'", switches
[i
].part1
);
4393 /* Obey some of the options. */
4395 if (print_search_dirs
)
4397 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4398 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4399 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4403 if (print_file_name
)
4405 printf ("%s\n", find_file (print_file_name
));
4409 if (print_prog_name
)
4411 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4412 printf ("%s\n", (newname
? newname
: print_prog_name
));
4416 if (print_multi_lib
)
4418 print_multilib_info ();
4422 if (print_multi_directory
)
4424 if (multilib_dir
== NULL
)
4427 printf ("%s\n", multilib_dir
);
4433 if (! strcmp (version_string
, compiler_version
))
4434 fprintf (stderr
, "gcc version %s\n", version_string
);
4436 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4437 version_string
, compiler_version
);
4444 fatal ("No input files");
4446 /* Make a place to record the compiler output file names
4447 that correspond to the input files. */
4449 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4450 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4452 /* Record which files were specified explicitly as link input. */
4454 explicit_link_files
= xmalloc (n_infiles
);
4455 bzero (explicit_link_files
, n_infiles
);
4457 for (i
= 0; i
< n_infiles
; i
++)
4459 register struct compiler
*cp
= 0;
4460 int this_file_error
= 0;
4462 /* Tell do_spec what to substitute for %i. */
4464 input_filename
= infiles
[i
].name
;
4465 input_filename_length
= strlen (input_filename
);
4466 input_file_number
= i
;
4468 /* Use the same thing in %o, unless cp->spec says otherwise. */
4470 outfiles
[i
] = input_filename
;
4472 /* Figure out which compiler from the file's suffix. */
4474 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4475 infiles
[i
].language
);
4479 /* Ok, we found an applicable compiler. Run its spec. */
4480 /* First say how much of input_filename to substitute for %b */
4484 input_basename
= input_filename
;
4485 for (p
= input_filename
; *p
; p
++)
4486 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4487 input_basename
= p
+ 1;
4489 /* Find a suffix starting with the last period,
4490 and set basename_length to exclude that suffix. */
4491 basename_length
= strlen (input_basename
);
4492 p
= input_basename
+ basename_length
;
4493 while (p
!= input_basename
&& *p
!= '.') --p
;
4494 if (*p
== '.' && p
!= input_basename
)
4496 basename_length
= p
- input_basename
;
4497 input_suffix
= p
+ 1;
4503 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4505 len
+= strlen (cp
->spec
[j
]);
4507 p
= (char *) xmalloc (len
+ 1);
4510 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4513 strcpy (p
+ len
, cp
->spec
[j
]);
4514 len
+= strlen (cp
->spec
[j
]);
4517 value
= do_spec (p
);
4520 this_file_error
= 1;
4523 /* If this file's name does not contain a recognized suffix,
4524 record it as explicit linker input. */
4527 explicit_link_files
[i
] = 1;
4529 /* Clear the delete-on-failure queue, deleting the files in it
4530 if this compilation failed. */
4532 if (this_file_error
)
4534 delete_failure_queue ();
4537 /* If this compilation succeeded, don't delete those files later. */
4538 clear_failure_queue ();
4541 /* Run ld to link all the compiler output files. */
4543 if (error_count
== 0)
4545 int tmp
= execution_count
;
4549 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4551 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4552 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4554 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4556 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4557 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4560 for (i
= 0; i
< n_switches
; i
++)
4564 obstack_grow (&collect_obstack
, " ", 1);
4567 obstack_grow (&collect_obstack
, "-", 1);
4568 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4569 strlen (switches
[i
].part1
));
4571 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4573 obstack_grow (&collect_obstack
, " ", 1);
4574 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4577 obstack_grow (&collect_obstack
, "\0", 1);
4578 putenv (obstack_finish (&collect_obstack
));
4580 value
= do_spec (link_command_spec
);
4583 linker_was_run
= (tmp
!= execution_count
);
4586 /* Warn if a -B option was specified but the prefix was never used. */
4587 unused_prefix_warnings (&exec_prefixes
);
4588 unused_prefix_warnings (&startfile_prefixes
);
4590 /* If options said don't run linker,
4591 complain about input files to be given to the linker. */
4593 if (! linker_was_run
&& error_count
== 0)
4594 for (i
= 0; i
< n_infiles
; i
++)
4595 if (explicit_link_files
[i
])
4596 error ("%s: linker input file unused since linking not done",
4599 /* Delete some or all of the temporary files we made. */
4602 delete_failure_queue ();
4603 delete_temp_files ();
4605 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4610 /* Find the proper compilation spec for the file name NAME,
4611 whose length is LENGTH. LANGUAGE is the specified language,
4612 or 0 if none specified. */
4614 static struct compiler
*
4615 lookup_compiler (name
, length
, language
)
4620 struct compiler
*cp
;
4622 /* Look for the language, if one is spec'd. */
4625 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4629 if (cp
->suffix
[0] == '@'
4630 && !strcmp (cp
->suffix
+ 1, language
))
4634 error ("language %s not recognized", language
);
4637 /* Look for a suffix. */
4638 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4640 if (/* The suffix `-' matches only the file name `-'. */
4641 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4643 (strlen (cp
->suffix
) < length
4644 /* See if the suffix matches the end of NAME. */
4646 && (!strcmp (cp
->suffix
,
4647 name
+ length
- strlen (cp
->suffix
))
4648 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4649 && !strcasecmp (cp
->suffix
,
4650 name
+ length
- strlen (cp
->suffix
)))))
4652 && !strcmp (cp
->suffix
,
4653 name
+ length
- strlen (cp
->suffix
))))
4656 if (cp
->spec
[0][0] == '@')
4658 struct compiler
*new;
4659 /* An alias entry maps a suffix to a language.
4660 Search for the language; pass 0 for NAME and LENGTH
4661 to avoid infinite recursion if language not found.
4662 Construct the new compiler spec. */
4663 language
= cp
->spec
[0] + 1;
4664 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4665 new->suffix
= cp
->suffix
;
4666 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4667 (char *) new->spec
, sizeof new->spec
);
4670 /* A non-alias entry: return it. */
4682 register char *value
= (char *) malloc (size
);
4684 fatal ("virtual memory exhausted");
4689 xrealloc (ptr
, size
)
4693 register char *value
= (char *) realloc (ptr
, size
);
4695 fatal ("virtual memory exhausted");
4699 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4705 int len1
= strlen (s1
);
4706 int len2
= strlen (s2
);
4707 char *result
= xmalloc (len1
+ len2
+ 1);
4709 strcpy (result
, s1
);
4710 strcpy (result
+ len1
, s2
);
4711 *(result
+ len1
+ len2
) = 0;
4717 concat3 (s1
, s2
, s3
)
4720 return concat (concat (s1
, s2
), s3
);
4724 concat4 (s1
, s2
, s3
, s4
)
4725 char *s1
, *s2
, *s3
, *s4
;
4727 return concat (concat (s1
, s2
), concat (s3
, s4
));
4731 concat6 (s1
, s2
, s3
, s4
, s5
, s6
)
4732 char *s1
, *s2
, *s3
, *s4
, *s5
, *s6
;
4734 return concat3 (concat (s1
, s2
), concat (s3
, s4
), concat (s5
, s6
));
4738 save_string (s
, len
)
4742 register char *result
= xmalloc (len
+ 1);
4744 bcopy (s
, result
, len
);
4750 pfatal_with_name (name
)
4755 if (errno
< sys_nerr
)
4756 s
= concat ("%s: ", my_strerror( errno
));
4758 s
= "cannot open %s";
4763 perror_with_name (name
)
4768 if (errno
< sys_nerr
)
4769 s
= concat ("%s: ", my_strerror( errno
));
4771 s
= "cannot open %s";
4781 if (errno
< sys_nerr
)
4782 s
= concat ("installation problem, cannot exec %s: ", my_strerror( errno
));
4784 s
= "installation problem, cannot exec %s";
4788 /* More 'friendly' abort that prints the line and file.
4789 config.h can #define abort fancy_abort if you like that sort of thing. */
4794 fatal ("Internal gcc abort.");
4799 /* Output an error message and exit */
4802 fatal
VPROTO((char *format
, ...))
4809 VA_START (ap
, format
);
4812 format
= va_arg (ap
, char*);
4815 fprintf (stderr
, "%s: ", programname
);
4816 vfprintf (stderr
, format
, ap
);
4818 fprintf (stderr
, "\n");
4819 delete_temp_files ();
4824 error
VPROTO((char *format
, ...))
4831 VA_START (ap
, format
);
4834 format
= va_arg (ap
, char*);
4837 fprintf (stderr
, "%s: ", programname
);
4838 vfprintf (stderr
, format
, ap
);
4841 fprintf (stderr
, "\n");
4844 #else /* not HAVE_VPRINTF */
4847 fatal (msg
, arg1
, arg2
)
4848 char *msg
, *arg1
, *arg2
;
4850 error (msg
, arg1
, arg2
);
4851 delete_temp_files ();
4856 error (msg
, arg1
, arg2
)
4857 char *msg
, *arg1
, *arg2
;
4859 fprintf (stderr
, "%s: ", programname
);
4860 fprintf (stderr
, msg
, arg1
, arg2
);
4861 fprintf (stderr
, "\n");
4864 #endif /* not HAVE_VPRINTF */
4868 validate_all_switches ()
4870 struct compiler
*comp
;
4873 struct spec_list
*spec
;
4875 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4878 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4882 if (c
== '%' && *p
== '{')
4883 /* We have a switch spec. */
4884 validate_switches (p
+ 1);
4888 /* look through the linked list of extra specs read from the specs file */
4889 for (spec
= specs
; spec
; spec
= spec
->next
)
4893 if (c
== '%' && *p
== '{')
4894 /* We have a switch spec. */
4895 validate_switches (p
+ 1);
4898 p
= link_command_spec
;
4900 if (c
== '%' && *p
== '{')
4901 /* We have a switch spec. */
4902 validate_switches (p
+ 1);
4904 /* Now notice switches mentioned in the machine-specific specs. */
4908 if (c
== '%' && *p
== '{')
4909 /* We have a switch spec. */
4910 validate_switches (p
+ 1);
4914 if (c
== '%' && *p
== '{')
4915 /* We have a switch spec. */
4916 validate_switches (p
+ 1);
4920 if (c
== '%' && *p
== '{')
4921 /* We have a switch spec. */
4922 validate_switches (p
+ 1);
4924 p
= signed_char_spec
;
4926 if (c
== '%' && *p
== '{')
4927 /* We have a switch spec. */
4928 validate_switches (p
+ 1);
4932 if (c
== '%' && *p
== '{')
4933 /* We have a switch spec. */
4934 validate_switches (p
+ 1);
4938 if (c
== '%' && *p
== '{')
4939 /* We have a switch spec. */
4940 validate_switches (p
+ 1);
4944 if (c
== '%' && *p
== '{')
4945 /* We have a switch spec. */
4946 validate_switches (p
+ 1);
4950 if (c
== '%' && *p
== '{')
4951 /* We have a switch spec. */
4952 validate_switches (p
+ 1);
4956 if (c
== '%' && *p
== '{')
4957 /* We have a switch spec. */
4958 validate_switches (p
+ 1);
4962 if (c
== '%' && *p
== '{')
4963 /* We have a switch spec. */
4964 validate_switches (p
+ 1);
4967 /* Look at the switch-name that comes after START
4968 and mark as valid all supplied switches that match it. */
4971 validate_switches (start
)
4974 register char *p
= start
;
4989 while (*p
!= ':' && *p
!= '}') p
++;
4993 else if (p
[-1] == '*')
4995 /* Mark all matching switches as valid. */
4997 for (i
= 0; i
< n_switches
; i
++)
4998 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4999 switches
[i
].valid
= 1;
5003 /* Mark an exact matching switch as valid. */
5004 for (i
= 0; i
< n_switches
; i
++)
5006 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5007 && switches
[i
].part1
[p
- filter
] == 0)
5008 switches
[i
].valid
= 1;
5013 /* Check whether a particular argument was used. */
5022 for (i
= 0; i
< n_switches
; i
++)
5023 if (! strncmp (switches
[i
].part1
, p
, len
)
5024 && strlen (switches
[i
].part1
) == len
)
5029 /* Work out the subdirectory to use based on the
5030 options. The format of multilib_select is a list of elements.
5031 Each element is a subdirectory name followed by a list of options
5032 followed by a semicolon. gcc will consider each line in turn. If
5033 none of the options beginning with an exclamation point are
5034 present, and all of the other options are present, that
5035 subdirectory will be used. */
5040 char *p
= multilib_select
;
5042 char *this_path
, *this_arg
;
5047 /* Ignore newlines. */
5054 /* Get the initial path. */
5062 this_path_len
= p
- this_path
;
5064 /* Check the arguments. */
5079 while (*p
!= ' ' && *p
!= ';')
5086 if (*this_arg
== '!')
5087 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
5089 failed
= ! used_arg (this_arg
, p
- this_arg
);
5097 if (this_path_len
!= 1
5098 || this_path
[0] != '.')
5100 multilib_dir
= xmalloc (this_path_len
+ 1);
5101 strncpy (multilib_dir
, this_path
, this_path_len
);
5102 multilib_dir
[this_path_len
] = '\0';
5111 /* Print out the multiple library subdirectory selection
5112 information. This prints out a series of lines. Each line looks
5113 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5114 required. Only the desired options are printed out, the negative
5115 matches. The options are print without a leading dash. There are
5116 no spaces to make it easy to use the information in the shell.
5117 Each subdirectory is printed only once. This assumes the ordering
5118 generated by the genmultilib script. */
5121 print_multilib_info ()
5123 char *p
= multilib_select
;
5124 char *last_path
= 0, *this_path
;
5126 int last_path_len
= 0;
5130 /* Ignore newlines. */
5137 /* Get the initial path. */
5146 /* If this is a duplicate, skip it. */
5147 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5148 && ! strncmp (last_path
, this_path
, last_path_len
));
5150 last_path
= this_path
;
5151 last_path_len
= p
- this_path
;
5157 for (p1
= last_path
; p1
< p
; p1
++)
5176 use_arg
= *p
!= '!';
5181 while (*p
!= ' ' && *p
!= ';')