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". */
148 #ifndef OBJECT_SUFFIX
149 #define OBJECT_SUFFIX ".o"
152 /* By default, colon separates directories in a path. */
153 #ifndef PATH_SEPARATOR
154 #define PATH_SEPARATOR ':'
157 #ifndef DIR_SEPARATOR
158 #define DIR_SEPARATOR '/'
161 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
163 #define obstack_chunk_alloc xmalloc
164 #define obstack_chunk_free free
167 extern char *getenv ();
174 #ifndef HAVE_STRERROR
176 extern const char *const sys_errlist[];
178 extern char *sys_errlist[];
181 extern char *strerror();
184 extern int execv (), execvp ();
186 /* If a stage of compilation returns an exit status >= 1,
187 compilation of that file ceases. */
189 #define MIN_FATAL_STATUS 1
191 /* Flag saying to print the directories gcc will search through looking for
192 programs, libraries, etc. */
194 static int print_search_dirs;
196 /* Flag saying to print the full filename of this file
197 as found through our usual search mechanism. */
199 static char *print_file_name = NULL;
201 /* As print_file_name, but search for executable file. */
203 static char *print_prog_name = NULL;
205 /* Flag saying to print the relative path we'd use to
206 find libgcc.a given the current compiler flags. */
208 static int print_multi_directory;
210 /* Flag saying to print the list of subdirectories and
211 compiler flags used to select them in a standard form. */
213 static int print_multi_lib;
215 /* Flag indicating whether we should print the command and arguments */
217 static int verbose_flag;
219 /* Nonzero means write "temp" files in source directory
220 and use the source file's name in them, and don't delete them. */
222 static int save_temps_flag;
224 /* The compiler version. */
226 static char *compiler_version;
228 /* The target version specified with -V */
230 static char *spec_version = DEFAULT_TARGET_VERSION;
232 /* The target machine specified with -b. */
234 static char *spec_machine = DEFAULT_TARGET_MACHINE;
236 /* Nonzero if cross-compiling.
237 When -b is used, the value comes from the `specs' file. */
240 static int cross_compile = 1;
242 static int cross_compile = 0;
245 /* The number of errors that have occurred; the link phase will not be
246 run if this is non-zero. */
247 static int error_count = 0;
249 /* This is the obstack which we use to allocate many strings. */
251 static struct obstack obstack;
253 /* This is the obstack to build an environment variable to pass to
254 collect2 that describes all of the relevant switches of what to
255 pass the compiler in building the list of pointers to constructors
258 static struct obstack collect_obstack;
260 extern char *version_string;
262 /* Forward declaration for prototypes. */
265 static void set_spec PROTO((char *, char *));
266 static struct compiler *lookup_compiler PROTO((char *, int, char *));
267 static char *build_search_list PROTO((struct path_prefix *, char *, int));
268 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
269 static char *find_a_file PROTO((struct path_prefix *, char *, int));
270 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
271 static char *skip_whitespace PROTO((char *));
272 static void record_temp_file PROTO((char *, int, int));
273 static void delete_if_ordinary PROTO((char *));
274 static void delete_temp_files PROTO((void));
275 static void delete_failure_queue PROTO((void));
276 static void clear_failure_queue PROTO((void));
277 static char *choose_temp_base_try PROTO((char *, char *));
278 static void choose_temp_base PROTO((void));
279 static int check_live_switch PROTO((int, int));
280 static char *handle_braces PROTO((char *));
281 static char *save_string PROTO((char *, int));
282 static char *concat PROTO((char *, char *));
283 static char *concat3 PROTO((char *, char *, char *));
284 static char *concat4 PROTO((char *, char *, char *, char *));
285 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
287 static int do_spec PROTO((char *));
288 static int do_spec_1 PROTO((char *, int, char *));
289 static char *find_file PROTO((char *));
290 static int is_directory PROTO((char *, char *, int));
291 static void validate_switches PROTO((char *));
292 static void validate_all_switches PROTO((void));
293 static void give_switch PROTO((int, int));
294 static int used_arg PROTO((char *, int));
295 static void set_multilib_dir PROTO((void));
296 static void print_multilib_info PROTO((void));
297 static void pfatal_with_name PROTO((char *));
298 static void perror_with_name PROTO((char *));
299 static void perror_exec PROTO((char *));
301 static void fatal PVPROTO((char *, ...));
302 static void error PVPROTO((char *, ...));
304 /* We must not provide any prototype here, even if ANSI C. */
305 static void fatal PROTO(());
306 static void error PROTO(());
313 /* Specs are strings containing lines, each of which (if not blank)
314 is made up of a program name, and arguments separated by spaces.
315 The program name must be exact and start from root, since no path
316 is searched and it is unreliable to depend on the current working directory.
317 Redirection of input or output is not supported; the subprograms must
318 accept filenames saying what files to read and write.
320 In addition, the specs can contain %-sequences to substitute variable text
321 or for conditional text. Here is a table of all defined %-sequences.
322 Note that spaces are not generated automatically around the results of
323 expanding these sequences; therefore, you can concatenate them together
324 or with constant text in a single argument.
326 %% substitute one % into the program name or argument.
327 %i substitute the name of the input file being processed.
328 %b substitute the basename of the input file being processed.
329 This is the substring up to (and not including) the last period
330 and not including the directory.
331 %g substitute the temporary-file-name-base. This is a string chosen
332 once per compilation. Different temporary file names are made by
333 concatenation of constant strings on the end, as in `%g.s'.
334 %g also has the same effect of %d.
335 %u like %g, but make the temporary file name unique.
336 %U returns the last file name generated with %u.
337 %d marks the argument containing or following the %d as a
338 temporary file name, so that that file will be deleted if CC exits
339 successfully. Unlike %g, this contributes no text to the argument.
340 %w marks the argument containing or following the %w as the
341 "output file" of this compilation. This puts the argument
342 into the sequence of arguments that %o will substitute later.
344 like %{...} but mark last argument supplied within
345 as a file to be deleted on failure.
346 %o substitutes the names of all the output files, with spaces
347 automatically placed around them. You should write spaces
348 around the %o as well or the results are undefined.
349 %o is for use in the specs for running the linker.
350 Input files whose names have no recognized suffix are not compiled
351 at all, but they are included among the output files, so they will
353 %O substitutes the suffix for object files.
354 %p substitutes the standard macro predefinitions for the
355 current target machine. Use this when running cpp.
356 %P like %p, but puts `__' before and after the name of each macro.
357 (Except macros that already have __.)
359 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
360 %s current argument is the name of a library or startup file of some sort.
361 Search for that file in a standard list of directories
362 and substitute the full name found.
363 %eSTR Print STR as an error message. STR is terminated by a newline.
364 Use this when inconsistent options are detected.
365 %x{OPTION} Accumulate an option for %X.
366 %X Output the accumulated linker options specified by compilations.
367 %Y Output the accumulated assembler options specified by compilations.
368 %Z Output the accumulated preprocessor options specified by compilations.
369 %v1 Substitute the major version number of GCC.
370 (For version 2.5.n, this is 2.)
371 %v2 Substitute the minor version number of GCC.
372 (For version 2.5.n, this is 5.)
373 %a process ASM_SPEC as a spec.
374 This allows config.h to specify part of the spec for running as.
375 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
376 used here. This can be used to run a post-processor after the
377 assembler has done it's job.
378 %D Dump out a -L option for each directory in startfile_prefixes.
379 If multilib_dir is set, extra entries are generated with it affixed.
380 %l process LINK_SPEC as a spec.
381 %L process LIB_SPEC as a spec.
382 %G process LIBGCC_SPEC as a spec.
383 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
384 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
385 %c process SIGNED_CHAR_SPEC as a spec.
386 %C process CPP_SPEC as a spec. A capital C is actually used here.
387 %1 process CC1_SPEC as a spec.
388 %2 process CC1PLUS_SPEC as a spec.
389 %| output "-" if the input for the current command is coming from a pipe.
390 %* substitute the variable part of a matched option. (See below.)
391 Note that each comma in the substituted string is replaced by
393 %{S} substitutes the -S switch, if that switch was given to CC.
394 If that switch was not specified, this substitutes nothing.
395 Here S is a metasyntactic variable.
396 %{S*} substitutes all the switches specified to CC whose names start
397 with -S. This is used for -o, -D, -I, etc; switches that take
398 arguments. CC considers `-o foo' as being one switch whose
399 name starts with `o'. %{o*} would substitute this text,
400 including the space; thus, two arguments would be generated.
401 %{S*:X} substitutes X if one or more switches whose names start with -S are
402 specified to CC. Note that the tail part of the -S option
403 (i.e. the part matched by the `*') will be substituted for each
404 occurrence of %* within X.
405 %{S:X} substitutes X, but only if the -S switch was given to CC.
406 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
407 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
408 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
409 %{.S:X} substitutes X, but only if processing a file with suffix S.
410 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
411 %(Spec) processes a specification defined in a specs file as *Spec:
412 %[Spec] as above, but put __ around -D arguments
414 The conditional text X in a %{S:X} or %{!S:X} construct may contain
415 other nested % constructs or spaces, or even newlines. They are
416 processed as usual, as described above.
418 The -O, -f, -m, and -W switches are handled specifically in these
419 constructs. If another value of -O or the negated form of a -f, -m, or
420 -W switch is found later in the command line, the earlier switch
421 value is ignored, except with {S*} where S is just one letter; this
422 passes all matching options.
424 The character | is used to indicate that a command should be piped to
425 the following command, but only if -pipe is specified.
427 Note that it is built into CC which switches take arguments and which
428 do not. You might think it would be useful to generalize this to
429 allow each compiler's spec to say which switches take arguments. But
430 this cannot be done in a consistent fashion. CC cannot even decide
431 which input files have been specified without knowing which switches
432 take arguments, and it must know which input files to compile in order
433 to tell which compilers to run.
435 CC also knows implicitly that arguments starting in `-l' are to be
436 treated as compiler output files, and passed to the linker in their
437 proper position among the other output files. */
439 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
441 /* config.h can define ASM_SPEC to provide extra args to the assembler
442 or extra switch-translations. */
447 /* config.h can define ASM_FINAL_SPEC to run a post processor after
448 the assembler has run. */
449 #ifndef ASM_FINAL_SPEC
450 #define ASM_FINAL_SPEC ""
453 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
454 or extra switch-translations. */
459 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
460 or extra switch-translations. */
465 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
466 or extra switch-translations. */
468 #define CC1PLUS_SPEC ""
471 /* config.h can define LINK_SPEC to provide extra args to the linker
472 or extra switch-translations. */
477 /* config.h can define LIB_SPEC to override the default libraries. */
479 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
482 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
485 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
486 /* Have gcc do the search for libgcc.a. */
487 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
489 #define LIBGCC_SPEC "%{!shared:-lgcc}"
493 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
494 #ifndef STARTFILE_SPEC
495 #define STARTFILE_SPEC \
496 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
499 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
500 Make the string nonempty to require spaces there. */
501 #ifndef SWITCHES_NEED_SPACES
502 #define SWITCHES_NEED_SPACES ""
505 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
507 #define ENDFILE_SPEC ""
510 /* This spec is used for telling cpp whether char is signed or not. */
511 #ifndef SIGNED_CHAR_SPEC
512 /* Use #if rather than ?:
513 because MIPS C compiler rejects like ?: in initializers. */
514 #if DEFAULT_SIGNED_CHAR
515 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
517 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
521 /* MULTILIB_SELECT comes from multilib.h. It gives a
522 string interpreted by set_multilib_dir to select a library
523 subdirectory based on the compiler options. */
524 #ifndef MULTILIB_SELECT
525 #define MULTILIB_SELECT ". ;"
528 static char *cpp_spec = CPP_SPEC;
529 static char *cpp_predefines = CPP_PREDEFINES;
530 static char *cc1_spec = CC1_SPEC;
531 static char *cc1plus_spec = CC1PLUS_SPEC;
532 static char *signed_char_spec = SIGNED_CHAR_SPEC;
533 static char *asm_spec = ASM_SPEC;
534 static char *asm_final_spec = ASM_FINAL_SPEC;
535 static char *link_spec = LINK_SPEC;
536 static char *lib_spec = LIB_SPEC;
537 static char *libgcc_spec = LIBGCC_SPEC;
538 static char *endfile_spec = ENDFILE_SPEC;
539 static char *startfile_spec = STARTFILE_SPEC;
540 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
541 static char *multilib_select = MULTILIB_SELECT;
543 /* This defines which switch letters take arguments. */
545 #ifndef SWITCH_TAKES_ARG
546 #define SWITCH_TAKES_ARG(CHAR) \
547 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
548 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
549 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
550 || (CHAR) == 'L' || (CHAR) == 'A')
553 /* This defines which multi-letter switches take arguments. */
555 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
556 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
557 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
558 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
559 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
560 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
561 || !strcmp (STR, "isystem"))
563 #ifndef WORD_SWITCH_TAKES_ARG
564 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
567 /* Record the mapping from file suffixes for compilation specs. */
571 char *suffix; /* Use this compiler for input files
572 whose names end in this suffix. */
574 char *spec[4]; /* To use this compiler, concatenate these
575 specs and pass to do_spec. */
578 /* Pointer to a vector of `struct compiler' that gives the spec for
579 compiling a file, based on its suffix.
580 A file that does not end in any of these suffixes will be passed
581 unchanged to the loader and nothing else will be done to it.
583 An entry containing two 0s is used to terminate the vector.
585 If multiple entries match a file, the last matching one is used. */
587 static struct compiler *compilers;
589 /* Number of entries in `compilers', not counting the null terminator. */
591 static int n_compilers;
593 /* The default list of file name suffixes and their compilation specs. */
595 static struct compiler default_compilers[] =
599 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
600 %{C:%{!E:%eGNU C does not support -C without using -E}}\
601 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
602 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
603 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
604 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
605 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
606 %{traditional-cpp:-traditional}\
607 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
608 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
609 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
610 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
611 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
612 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
614 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
615 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
617 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
618 %{!pipe:%g.s} %A\n }}}}"},
620 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
621 %{C:%{!E:%eGNU C does not support -C without using -E}}\
622 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
623 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
624 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
625 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
626 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
627 %{traditional-cpp:-traditional}\
628 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
630 %{!E:%e-E required when input is from standard input}"},
631 {".m", "@objective-c"},
633 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
634 %{C:%{!E:%eGNU C does not support -C without using -E}}\
635 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
636 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
637 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
638 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
639 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
640 %{traditional-cpp:-traditional}\
641 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
642 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
643 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
644 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
645 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
646 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
647 -lang-objc %{gen-decls} \
649 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
650 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
652 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
653 %{!pipe:%g.s} %A\n }}}}"},
656 "%{!E:%eCompilation of header file requested} \
657 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
658 %{C:%{!E:%eGNU C does not support -C without using -E}}\
659 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
660 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
661 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
662 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
663 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
664 %{traditional-cpp:-traditional}\
665 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
667 {".i", "@cpp-output"},
669 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
670 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
671 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
673 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
674 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
676 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
677 %{!pipe:%g.s} %A\n }}}}"},
678 {".s", "@assembler"},
680 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
681 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
683 {".S", "@assembler-with-cpp"},
684 {"@assembler-with-cpp",
685 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
686 %{C:%{!E:%eGNU C does not support -C without using -E}}\
687 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
688 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
689 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
690 %{traditional-cpp:-traditional}\
691 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
692 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
693 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
694 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
695 %{!pipe:%g.s} %A\n }}}}"},
697 /* Mark end of table */
701 /* Number of elements in default_compilers, not counting the terminator. */
703 static int n_default_compilers
704 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
706 /* Here is the spec for running the linker, after compiling all files. */
708 /* -u* was put back because both BSD and SysV seem to support it. */
709 /* %{static:} simply prevents an error message if the target machine
710 doesn't handle -static. */
711 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
712 scripts which exist in user specified directories, or in standard
714 #ifdef LINK_LIBGCC_SPECIAL
715 /* Don't generate -L options. */
716 static char *link_command_spec = "\
718 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
719 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
720 %{!A:%{!nostartfiles:%S}} %{static:}\
721 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
724 static char *link_command_spec = "\
726 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
727 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
728 %{!A:%{!nostartfiles:%S}} %{static:}\
729 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
732 /* A vector of options to give to the linker.
733 These options are accumulated by %x,
734 and substituted into the linker command with %X. */
735 static int n_linker_options;
736 static char **linker_options;
738 /* A vector of options to give to the assembler.
739 These options are accumulated by -Wa,
740 and substituted into the assembler command with %Y. */
741 static int n_assembler_options;
742 static char **assembler_options;
744 /* A vector of options to give to the preprocessor.
745 These options are accumulated by -Wp,
746 and substituted into the preprocessor command with %Z. */
747 static int n_preprocessor_options;
748 static char **preprocessor_options;
750 /* Define how to map long options into short ones. */
752 /* This structure describes one mapping. */
755 /* The long option's name. */
757 /* The equivalent short option. */
759 /* Argument info. A string of flag chars; NULL equals no options.
760 a => argument required.
761 o => argument optional.
762 j => join argument to equivalent, making one word.
763 * => require other text after NAME as an argument. */
767 /* This is the table of mappings. Mappings are tried sequentially
768 for each option encountered; the first one that matches, wins. */
770 struct option_map option_map[] =
772 {"--all-warnings", "-Wall", 0},
773 {"--ansi", "-ansi", 0},
774 {"--assemble", "-S", 0},
775 {"--assert", "-A", "a"},
776 {"--comments", "-C", 0},
777 {"--compile", "-c", 0},
778 {"--debug", "-g", "oj"},
779 {"--define-macro", "-D", "a"},
780 {"--dependencies", "-M", 0},
781 {"--dump", "-d", "a"},
782 {"--dumpbase", "-dumpbase", "a"},
783 {"--entry", "-e", 0},
784 {"--extra-warnings", "-W", 0},
785 {"--for-assembler", "-Wa", "a"},
786 {"--for-linker", "-Xlinker", "a"},
787 {"--force-link", "-u", "a"},
788 {"--imacros", "-imacros", "a"},
789 {"--include", "-include", "a"},
790 {"--include-barrier", "-I-", 0},
791 {"--include-directory", "-I", "a"},
792 {"--include-directory-after", "-idirafter", "a"},
793 {"--include-prefix", "-iprefix", "a"},
794 {"--include-with-prefix", "-iwithprefix", "a"},
795 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
796 {"--include-with-prefix-after", "-iwithprefix", "a"},
797 {"--language", "-x", "a"},
798 {"--library-directory", "-L", "a"},
799 {"--machine", "-m", "aj"},
800 {"--machine-", "-m", "*j"},
801 {"--no-line-commands", "-P", 0},
802 {"--no-precompiled-includes", "-noprecomp", 0},
803 {"--no-standard-includes", "-nostdinc", 0},
804 {"--no-standard-libraries", "-nostdlib", 0},
805 {"--no-warnings", "-w", 0},
806 {"--optimize", "-O", "oj"},
807 {"--output", "-o", "a"},
808 {"--pedantic", "-pedantic", 0},
809 {"--pedantic-errors", "-pedantic-errors", 0},
810 {"--pipe", "-pipe", 0},
811 {"--prefix", "-B", "a"},
812 {"--preprocess", "-E", 0},
813 {"--print-search-dirs", "-print-search-dirs", 0},
814 {"--print-file-name", "-print-file-name=", "aj"},
815 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
816 {"--print-missing-file-dependencies", "-MG", 0},
817 {"--print-multi-lib", "-print-multi-lib", 0},
818 {"--print-multi-directory", "-print-multi-directory", 0},
819 {"--print-prog-name", "-print-prog-name=", "aj"},
820 {"--profile", "-p", 0},
821 {"--profile-blocks", "-a", 0},
822 {"--quiet", "-q", 0},
823 {"--save-temps", "-save-temps", 0},
824 {"--shared", "-shared", 0},
825 {"--silent", "-q", 0},
826 {"--static", "-static", 0},
827 {"--symbolic", "-symbolic", 0},
828 {"--target", "-b", "a"},
829 {"--trace-includes", "-H", 0},
830 {"--traditional", "-traditional", 0},
831 {"--traditional-cpp", "-traditional-cpp", 0},
832 {"--trigraphs", "-trigraphs", 0},
833 {"--undefine-macro", "-U", "a"},
834 {"--use-version", "-V", "a"},
835 {"--user-dependencies", "-MM", 0},
836 {"--verbose", "-v", 0},
837 {"--version", "-dumpversion", 0},
838 {"--warn-", "-W", "*j"},
839 {"--write-dependencies", "-MD", 0},
840 {"--write-user-dependencies", "-MMD", 0},
844 /* Translate the options described by *ARGCP and *ARGVP.
845 Make a new vector and store it back in *ARGVP,
846 and store its length in *ARGVC. */
849 translate_options (argcp, argvp)
855 char **argv = *argvp;
856 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
860 newv[newindex++] = argv[i++];
864 /* Translate -- options. */
865 if (argv[i][0] == '-' && argv[i][1] == '-')
867 /* Find a mapping that applies to this option. */
868 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
870 int optlen = strlen (option_map[j].name);
871 int arglen = strlen (argv[i]);
872 int complen = arglen > optlen ? optlen : arglen;
873 char *arginfo = option_map[j].arg_info;
878 if (!strncmp (argv[i], option_map[j].name, complen))
885 k < sizeof (option_map) / sizeof (option_map[0]);
887 if (strlen (option_map[k].name) >= arglen
888 && !strncmp (argv[i], option_map[k].name, arglen))
890 error ("Ambiguous abbreviation %s", argv[i]);
894 if (k != sizeof (option_map) / sizeof (option_map[0]))
900 /* If the option has an argument, accept that. */
901 if (argv[i][optlen] == '=')
902 arg = argv[i] + optlen + 1;
904 /* If this mapping requires extra text at end of name,
905 accept that as "argument". */
906 else if (index (arginfo, '*') != 0)
907 arg = argv[i] + optlen;
909 /* Otherwise, extra text at end means mismatch.
910 Try other mappings. */
915 else if (index (arginfo, '*') != 0)
917 error ("Incomplete `%s' option", option_map[j].name);
921 /* Handle arguments. */
922 if (index (arginfo, 'a') != 0)
928 error ("Missing argument to `%s' option",
936 else if (index (arginfo, '*') != 0)
938 else if (index (arginfo, 'o') == 0)
941 error ("Extraneous argument to `%s' option",
946 /* Store the translation as one argv elt or as two. */
947 if (arg != 0 && index (arginfo, 'j') != 0)
948 newv[newindex++] = concat (option_map[j].equivalent, arg);
951 newv[newindex++] = option_map[j].equivalent;
952 newv[newindex++] = arg;
955 newv[newindex++] = option_map[j].equivalent;
963 /* Handle old-fashioned options--just copy them through,
964 with their arguments. */
965 else if (argv[i][0] == '-')
967 char *p = argv[i] + 1;
971 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
972 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
973 else if (WORD_SWITCH_TAKES_ARG (p))
974 nskip += WORD_SWITCH_TAKES_ARG (p);
975 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
978 else if (! strcmp (p, "Xlinker"))
981 /* Watch out for an option at the end of the command line that
982 is missing arguments, and avoid skipping past the end of the
984 if (nskip + i > argc)
989 newv[newindex++] = argv[i++];
994 /* Ordinary operands, or +e options. */
995 newv[newindex++] = argv[i++];
1009 #ifdef HAVE_STRERROR
1014 static char buffer[30];
1018 if (e > 0 && e < sys_nerr)
1019 return sys_errlist[e];
1021 sprintf (buffer, "Unknown error %d", e);
1026 /* Read compilation specs from a file named FILENAME,
1027 replacing the default ones.
1029 A suffix which starts with `*' is a definition for
1030 one of the machine-specific sub-specs. The "suffix" should be
1031 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1032 The corresponding spec is stored in asm_spec, etc.,
1033 rather than in the `compilers' vector.
1035 Anything invalid in the file is a fatal error. */
1038 read_specs (filename)
1043 struct stat statbuf;
1048 fprintf (stderr, "Reading specs from %s\n", filename);
1050 /* Open and stat the file. */
1051 desc = open (filename, O_RDONLY, 0);
1053 pfatal_with_name (filename);
1054 if (stat (filename, &statbuf) < 0)
1055 pfatal_with_name (filename);
1057 /* Read contents of file into BUFFER. */
1058 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1059 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1061 pfatal_with_name (filename);
1062 buffer[readlen] = 0;
1065 /* Scan BUFFER for specs, putting them in the vector. */
1071 char *in, *out, *p1, *p2;
1073 /* Advance P in BUFFER to the next nonblank nocomment line. */
1074 p = skip_whitespace (p);
1078 /* Find the colon that should end the suffix. */
1080 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1081 /* The colon shouldn't be missing. */
1083 fatal ("specs file malformed after %d characters", p1 - buffer);
1084 /* Skip back over trailing whitespace. */
1086 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1087 /* Copy the suffix to a string. */
1088 suffix = save_string (p, p2 - p);
1089 /* Find the next line. */
1090 p = skip_whitespace (p1 + 1);
1092 fatal ("specs file malformed after %d characters", p - buffer);
1094 /* Find next blank line. */
1095 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1096 /* Specs end at the blank line and do not include the newline. */
1097 spec = save_string (p, p1 - p);
1100 /* Delete backslash-newline sequences from the spec. */
1105 if (in[0] == '\\' && in[1] == '\n')
1107 else if (in[0] == '#')
1109 while (*in && *in != '\n') in++;
1116 if (suffix[0] == '*')
1118 if (! strcmp (suffix, "*link_command"))
1119 link_command_spec = spec;
1121 set_spec (suffix + 1, spec);
1125 /* Add this pair to the vector. */
1127 = ((struct compiler *)
1128 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1129 compilers[n_compilers].suffix = suffix;
1130 bzero ((char *) compilers[n_compilers].spec,
1131 sizeof compilers[n_compilers].spec);
1132 compilers[n_compilers].spec[0] = spec;
1134 bzero ((char *) &compilers[n_compilers],
1135 sizeof compilers[n_compilers]);
1139 link_command_spec = spec;
1142 if (link_command_spec == 0)
1143 fatal ("spec file has no spec for linking");
1152 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1153 be considered whitespace. */
1154 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1156 else if (*p == '\n' || *p == ' ' || *p == '\t')
1160 while (*p != '\n') p++;
1170 /* Structure to keep track of the specs that have been defined so far. These
1171 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1175 char *name; /* Name of the spec. */
1176 char *spec; /* The spec itself. */
1177 struct spec_list *next; /* Next spec in linked list. */
1180 /* List of specs that have been defined so far. */
1182 static struct spec_list *specs = (struct spec_list *) 0;
1184 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1185 removed; If the spec starts with a + then SPEC is added to the end of the
1189 set_spec (name, spec)
1193 struct spec_list *sl;
1196 /* See if the spec already exists */
1197 for (sl = specs; sl; sl = sl->next)
1198 if (strcmp (sl->name, name) == 0)
1203 /* Not found - make it */
1204 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1205 sl->name = save_string (name, strlen (name));
1206 sl->spec = save_string ("", 0);
1211 old_spec = sl->spec;
1212 if (name && spec[0] == '+' && isspace (spec[1]))
1213 sl->spec = concat (old_spec, spec + 1);
1215 sl->spec = save_string (spec, strlen (spec));
1217 if (! strcmp (name, "asm"))
1218 asm_spec = sl->spec;
1219 else if (! strcmp (name, "asm_final"))
1220 asm_final_spec = sl->spec;
1221 else if (! strcmp (name, "cc1"))
1222 cc1_spec = sl->spec;
1223 else if (! strcmp (name, "cc1plus"))
1224 cc1plus_spec = sl->spec;
1225 else if (! strcmp (name, "cpp"))
1226 cpp_spec = sl->spec;
1227 else if (! strcmp (name, "endfile"))
1228 endfile_spec = sl->spec;
1229 else if (! strcmp (name, "lib"))
1230 lib_spec = sl->spec;
1231 else if (! strcmp (name, "libgcc"))
1232 libgcc_spec = sl->spec;
1233 else if (! strcmp (name, "link"))
1234 link_spec = sl->spec;
1235 else if (! strcmp (name, "predefines"))
1236 cpp_predefines = sl->spec;
1237 else if (! strcmp (name, "signed_char"))
1238 signed_char_spec = sl->spec;
1239 else if (! strcmp (name, "startfile"))
1240 startfile_spec = sl->spec;
1241 else if (! strcmp (name, "switches_need_spaces"))
1242 switches_need_spaces = sl->spec;
1243 else if (! strcmp (name, "cross_compile"))
1244 cross_compile = atoi (sl->spec);
1245 else if (! strcmp (name, "multilib"))
1246 multilib_select = sl->spec;
1247 /* Free the old spec */
1252 /* Accumulate a command (program name and args), and run it. */
1254 /* Vector of pointers to arguments in the current line of specifications. */
1256 static char **argbuf;
1258 /* Number of elements allocated in argbuf. */
1260 static int argbuf_length;
1262 /* Number of elements in argbuf currently in use (containing args). */
1264 static int argbuf_index;
1266 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1267 temp file. Used only if MKTEMP_EACH_FILE. */
1269 static struct temp_name {
1270 char *suffix; /* suffix associated with the code. */
1271 int length; /* strlen (suffix). */
1272 int unique; /* Indicates whether %g or %u/%U was used. */
1273 char *filename; /* associated filename. */
1274 int filename_length; /* strlen (filename). */
1275 struct temp_name *next;
1278 /* Number of commands executed so far. */
1280 static int execution_count;
1282 /* Number of commands that exited with a signal. */
1284 static int signal_count;
1286 /* Name with which this program was invoked. */
1288 static char *programname;
1290 /* Structures to keep track of prefixes to try when looking for files. */
1294 char *prefix; /* String to prepend to the path. */
1295 struct prefix_list *next; /* Next in linked list. */
1296 int require_machine_suffix; /* Don't use without machine_suffix. */
1297 /* 2 means try both machine_suffix and just_machine_suffix. */
1298 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1303 struct prefix_list *plist; /* List of prefixes to try */
1304 int max_len; /* Max length of a prefix in PLIST */
1305 char *name; /* Name of this list (used in config stuff) */
1308 /* List of prefixes to try when looking for executables. */
1310 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1312 /* List of prefixes to try when looking for startup (crt0) files. */
1314 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1316 /* List of prefixes to try when looking for include files. */
1318 static struct path_prefix include_prefixes = { 0, 0, "include" };
1320 /* Suffix to attach to directories searched for commands.
1321 This looks like `MACHINE/VERSION/'. */
1323 static char *machine_suffix = 0;
1325 /* Suffix to attach to directories searched for commands.
1326 This is just `MACHINE/'. */
1328 static char *just_machine_suffix = 0;
1330 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1332 static char *gcc_exec_prefix;
1334 /* Default prefixes to attach to command names. */
1336 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1337 #undef MD_EXEC_PREFIX
1338 #undef MD_STARTFILE_PREFIX
1339 #undef MD_STARTFILE_PREFIX_1
1342 #ifndef STANDARD_EXEC_PREFIX
1343 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1344 #endif /* !defined STANDARD_EXEC_PREFIX */
1346 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1347 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1348 #ifdef MD_EXEC_PREFIX
1349 static char *md_exec_prefix = MD_EXEC_PREFIX;
1352 #ifndef STANDARD_STARTFILE_PREFIX
1353 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1354 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1356 #ifdef MD_STARTFILE_PREFIX
1357 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1359 #ifdef MD_STARTFILE_PREFIX_1
1360 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1362 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1363 static char *standard_startfile_prefix_1 = "/lib/";
1364 static char *standard_startfile_prefix_2 = "/usr/lib/";
1366 #ifndef TOOLDIR_BASE_PREFIX
1367 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1369 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1370 static char *tooldir_prefix;
1372 /* Subdirectory to use for locating libraries. Set by
1373 set_multilib_dir based on the compilation options. */
1375 static char *multilib_dir;
1377 /* Clear out the vector of arguments (after a command is executed). */
1385 /* Add one argument to the vector at the end.
1386 This is done when a space is seen or at the end of the line.
1387 If DELETE_ALWAYS is nonzero, the arg is a filename
1388 and the file should be deleted eventually.
1389 If DELETE_FAILURE is nonzero, the arg is a filename
1390 and the file should be deleted if this compilation fails. */
1393 store_arg (arg, delete_always, delete_failure)
1395 int delete_always, delete_failure;
1397 if (argbuf_index + 1 == argbuf_length)
1399 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1402 argbuf[argbuf_index++] = arg;
1403 argbuf[argbuf_index] = 0;
1405 if (delete_always || delete_failure)
1406 record_temp_file (arg, delete_always, delete_failure);
1409 /* Record the names of temporary files we tell compilers to write,
1410 and delete them at the end of the run. */
1412 /* This is the common prefix we use to make temp file names.
1413 It is chosen once for each run of this program.
1414 It is substituted into a spec by %g.
1415 Thus, all temp file names contain this prefix.
1416 In practice, all temp file names start with this prefix.
1418 This prefix comes from the envvar TMPDIR if it is defined;
1419 otherwise, from the P_tmpdir macro if that is defined;
1420 otherwise, in /usr/tmp or /tmp. */
1422 static char *temp_filename;
1424 /* Length of the prefix. */
1426 static int temp_filename_length;
1428 /* Define the list of temporary files to delete. */
1433 struct temp_file *next;
1436 /* Queue of files to delete on success or failure of compilation. */
1437 static struct temp_file *always_delete_queue;
1438 /* Queue of files to delete on failure of compilation. */
1439 static struct temp_file *failure_delete_queue;
1441 /* Record FILENAME as a file to be deleted automatically.
1442 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1443 otherwise delete it in any case.
1444 FAIL_DELETE nonzero means delete it if a compilation step fails;
1445 otherwise delete it in any case. */
1448 record_temp_file (filename, always_delete, fail_delete)
1453 register char *name;
1454 name = xmalloc (strlen (filename) + 1);
1455 strcpy (name, filename);
1459 register struct temp_file *temp;
1460 for (temp = always_delete_queue; temp; temp = temp->next)
1461 if (! strcmp (name, temp->name))
1463 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1464 temp->next = always_delete_queue;
1466 always_delete_queue = temp;
1472 register struct temp_file *temp;
1473 for (temp = failure_delete_queue; temp; temp = temp->next)
1474 if (! strcmp (name, temp->name))
1476 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1477 temp->next = failure_delete_queue;
1479 failure_delete_queue = temp;
1484 /* Delete all the temporary files whose names we previously recorded. */
1487 delete_if_ordinary (name)
1494 printf ("Delete %s? (y or n) ", name);
1498 while ((c = getchar ()) != '\n' && c != EOF) ;
1499 if (i == 'y' || i == 'Y')
1501 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1502 if (unlink (name) < 0)
1504 perror_with_name (name);
1508 delete_temp_files ()
1510 register struct temp_file *temp;
1512 for (temp = always_delete_queue; temp; temp = temp->next)
1513 delete_if_ordinary (temp->name);
1514 always_delete_queue = 0;
1517 /* Delete all the files to be deleted on error. */
1520 delete_failure_queue ()
1522 register struct temp_file *temp;
1524 for (temp = failure_delete_queue; temp; temp = temp->next)
1525 delete_if_ordinary (temp->name);
1529 clear_failure_queue ()
1531 failure_delete_queue = 0;
1534 /* Compute a string to use as the base of all temporary file names.
1535 It is substituted for %g. */
1538 choose_temp_base_try (try, base)
1545 else if (try == (char *)0)
1547 else if (access (try, R_OK | W_OK) != 0)
1560 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1561 base = choose_temp_base_try (getenv ("TMP"), base);
1562 base = choose_temp_base_try (getenv ("TEMP"), base);
1565 base = choose_temp_base_try (P_tmpdir, base);
1568 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1569 dir_separator_str, "tmp"),
1571 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1573 /* If all else fails, use the current directory! */
1574 if (base == (char *)0) base = concat(".", dir_separator_str);
1576 len = strlen (base);
1577 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1579 strcpy (temp_filename, base);
1580 if (len > 0 && temp_filename[len-1] != '/'
1581 && temp_filename[len-1] != DIR_SEPARATOR)
1582 temp_filename[len++] = DIR_SEPARATOR;
1583 strcpy (temp_filename + len, "ccXXXXXX");
1585 mktemp (temp_filename);
1586 temp_filename_length = strlen (temp_filename);
1587 if (temp_filename_length == 0)
1592 /* Routine to add variables to the environment. We do this to pass
1593 the pathname of the gcc driver, and the directories search to the
1594 collect2 program, which is being run as ld. This way, we can be
1595 sure of executing the right compiler when collect2 wants to build
1596 constructors and destructors. Since the environment variables we
1597 use come from an obstack, we don't have to worry about allocating
1606 #ifndef VMS /* nor about VMS */
1608 extern char **environ;
1609 char **old_environ = environ;
1613 int str_len = strlen (str);
1617 while ((ch = *p++) != '\0' && ch != '=')
1623 /* Search for replacing an existing environment variable, and
1624 count the number of total environment variables. */
1625 for (envp = old_environ; *envp; envp++)
1628 if (!strncmp (str, *envp, name_len))
1635 /* Add a new environment variable */
1636 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1638 bcopy ((char *) old_environ, (char *) (environ + 1),
1639 sizeof (char *) * (num_envs+1));
1644 #endif /* HAVE_PUTENV */
1647 /* Build a list of search directories from PATHS.
1648 PREFIX is a string to prepend to the list.
1649 If CHECK_DIR_P is non-zero we ensure the directory exists.
1650 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1651 It is also used by the --print-search-dirs flag. */
1654 build_search_list (paths, prefix, check_dir_p)
1655 struct path_prefix *paths;
1659 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1661 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1662 int first_time = TRUE;
1663 struct prefix_list *pprefix;
1665 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1667 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1669 int len = strlen (pprefix->prefix);
1673 || is_directory (pprefix->prefix, machine_suffix, 0)))
1676 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1679 obstack_grow (&collect_obstack, pprefix->prefix, len);
1680 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1683 if (just_machine_suffix
1684 && pprefix->require_machine_suffix == 2
1686 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1689 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1692 obstack_grow (&collect_obstack, pprefix->prefix, len);
1693 obstack_grow (&collect_obstack, just_machine_suffix,
1697 if (!pprefix->require_machine_suffix)
1700 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1703 obstack_grow (&collect_obstack, pprefix->prefix, len);
1706 obstack_1grow (&collect_obstack, '\0');
1707 return obstack_finish (&collect_obstack);
1710 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1713 putenv_from_prefixes (paths, env_var)
1714 struct path_prefix *paths;
1717 putenv (build_search_list (paths, env_var, 1));
1720 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1721 access to check permissions.
1722 Return 0 if not found, otherwise return its name, allocated with malloc. */
1725 find_a_file (pprefix, name, mode)
1726 struct path_prefix *pprefix;
1731 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1732 struct prefix_list *pl;
1733 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1736 len += strlen (machine_suffix);
1738 temp = xmalloc (len);
1740 /* Determine the filename to execute (special case for absolute paths). */
1742 if (*name == '/' || *name == DIR_SEPARATOR)
1744 if (access (name, mode))
1746 strcpy (temp, name);
1751 for (pl = pprefix->plist; pl; pl = pl->next)
1755 /* Some systems have a suffix for executable files.
1756 So try appending that first. */
1757 if (file_suffix[0] != 0)
1759 strcpy (temp, pl->prefix);
1760 strcat (temp, machine_suffix);
1761 strcat (temp, name);
1762 strcat (temp, file_suffix);
1763 if (access (temp, mode) == 0)
1765 if (pl->used_flag_ptr != 0)
1766 *pl->used_flag_ptr = 1;
1771 /* Now try just the name. */
1772 strcpy (temp, pl->prefix);
1773 strcat (temp, machine_suffix);
1774 strcat (temp, name);
1775 if (access (temp, mode) == 0)
1777 if (pl->used_flag_ptr != 0)
1778 *pl->used_flag_ptr = 1;
1783 /* Certain prefixes are tried with just the machine type,
1784 not the version. This is used for finding as, ld, etc. */
1785 if (just_machine_suffix && pl->require_machine_suffix == 2)
1787 /* Some systems have a suffix for executable files.
1788 So try appending that first. */
1789 if (file_suffix[0] != 0)
1791 strcpy (temp, pl->prefix);
1792 strcat (temp, just_machine_suffix);
1793 strcat (temp, name);
1794 strcat (temp, file_suffix);
1795 if (access (temp, mode) == 0)
1797 if (pl->used_flag_ptr != 0)
1798 *pl->used_flag_ptr = 1;
1803 strcpy (temp, pl->prefix);
1804 strcat (temp, just_machine_suffix);
1805 strcat (temp, name);
1806 if (access (temp, mode) == 0)
1808 if (pl->used_flag_ptr != 0)
1809 *pl->used_flag_ptr = 1;
1814 /* Certain prefixes can't be used without the machine suffix
1815 when the machine or version is explicitly specified. */
1816 if (!pl->require_machine_suffix)
1818 /* Some systems have a suffix for executable files.
1819 So try appending that first. */
1820 if (file_suffix[0] != 0)
1822 strcpy (temp, pl->prefix);
1823 strcat (temp, name);
1824 strcat (temp, file_suffix);
1825 if (access (temp, mode) == 0)
1827 if (pl->used_flag_ptr != 0)
1828 *pl->used_flag_ptr = 1;
1833 strcpy (temp, pl->prefix);
1834 strcat (temp, name);
1835 if (access (temp, mode) == 0)
1837 if (pl->used_flag_ptr != 0)
1838 *pl->used_flag_ptr = 1;
1848 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1849 at the start of the list, otherwise it goes at the end.
1851 If WARN is nonzero, we will warn if no file is found
1852 through this prefix. WARN should point to an int
1853 which will be set to 1 if this entry is used.
1855 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1856 the complete value of machine_suffix.
1857 2 means try both machine_suffix and just_machine_suffix. */
1860 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1861 struct path_prefix *pprefix;
1864 int require_machine_suffix;
1867 struct prefix_list *pl, **prev;
1870 if (!first && pprefix->plist)
1872 for (pl = pprefix->plist; pl->next; pl = pl->next)
1877 prev = &pprefix->plist;
1879 /* Keep track of the longest prefix */
1881 len = strlen (prefix);
1882 if (len > pprefix->max_len)
1883 pprefix->max_len = len;
1885 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1886 pl->prefix = save_string (prefix, len);
1887 pl->require_machine_suffix = require_machine_suffix;
1888 pl->used_flag_ptr = warn;
1895 pl->next = (struct prefix_list *) 0;
1899 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1902 unused_prefix_warnings (pprefix)
1903 struct path_prefix *pprefix;
1905 struct prefix_list *pl = pprefix->plist;
1909 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1911 error ("file path prefix `%s' never used",
1913 /* Prevent duplicate warnings. */
1914 *pl->used_flag_ptr = 1;
1920 /* Get rid of all prefixes built up so far in *PLISTP. */
1923 free_path_prefix (pprefix)
1924 struct path_prefix *pprefix;
1926 struct prefix_list *pl = pprefix->plist;
1927 struct prefix_list *temp;
1933 free (temp->prefix);
1934 free ((char *) temp);
1936 pprefix->plist = (struct prefix_list *) 0;
1939 /* stdin file number. */
1940 #define STDIN_FILE_NO 0
1942 /* stdout file number. */
1943 #define STDOUT_FILE_NO 1
1945 /* value of `pipe': port index for reading. */
1948 /* value of `pipe': port index for writing. */
1949 #define WRITE_PORT 1
1951 /* Pipe waiting from last process, to be used as input for the next one.
1952 Value is STDIN_FILE_NO if no pipe is waiting
1953 (i.e. the next command is the first of a group). */
1955 static int last_pipe_input;
1957 /* Fork one piped subcommand. FUNC is the system call to use
1958 (either execv or execvp). ARGV is the arg vector to use.
1959 NOT_LAST is nonzero if this is not the last subcommand
1960 (i.e. its output should be piped to the next one.) */
1964 #include <process.h>
1966 pexecute (search_flag, program, argv, not_last)
1973 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1977 int i, el = search_flag ? 0 : 4;
1979 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1980 rf = scmd + strlen(program) + 2 + el;
1981 sprintf (scmd, "%s%s @%s.gp", program,
1982 (search_flag ? "" : ".exe"), temp_filename);
1983 argfile = fopen (rf, "w");
1985 pfatal_with_name (rf);
1987 for (i=1; argv[i]; i++)
1990 for (cp = argv[i]; *cp; cp++)
1992 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1993 fputc ('\\', argfile);
1994 fputc (*cp, argfile);
1996 fputc ('\n', argfile);
2007 perror_exec (program);
2008 return MIN_FATAL_STATUS << 8;
2015 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2018 pexecute (search_flag, program, argv, not_last)
2024 int (*func)() = (search_flag ? execv : execvp);
2027 int input_desc = last_pipe_input;
2028 int output_desc = STDOUT_FILE_NO;
2029 int retries, sleep_interval;
2031 /* If this isn't the last process, make a pipe for its output,
2032 and record it as waiting to be the input to the next process. */
2036 if (pipe (pdes) < 0)
2037 pfatal_with_name ("pipe");
2038 output_desc = pdes[WRITE_PORT];
2039 last_pipe_input = pdes[READ_PORT];
2042 last_pipe_input = STDIN_FILE_NO;
2044 /* Fork a subprocess; wait and retry if it fails. */
2046 for (retries = 0; retries < 4; retries++)
2051 sleep (sleep_interval);
2052 sleep_interval *= 2;
2059 pfatal_with_name ("fork");
2061 pfatal_with_name ("vfork");
2067 /* Move the input and output pipes into place, if nec. */
2068 if (input_desc != STDIN_FILE_NO)
2070 close (STDIN_FILE_NO);
2074 if (output_desc != STDOUT_FILE_NO)
2076 close (STDOUT_FILE_NO);
2078 close (output_desc);
2081 /* Close the parent's descs that aren't wanted here. */
2082 if (last_pipe_input != STDIN_FILE_NO)
2083 close (last_pipe_input);
2085 /* Exec the program. */
2086 (*func) (program, argv);
2087 perror_exec (program);
2093 /* In the parent, after forking.
2094 Close the descriptors that we made for this child. */
2095 if (input_desc != STDIN_FILE_NO)
2097 if (output_desc != STDOUT_FILE_NO)
2098 close (output_desc);
2100 /* Return child's process number. */
2105 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2107 #if defined(OS2) || defined(_WIN32)
2111 /* This is a kludge to get around the Microsoft C spawn functions' propensity
2112 to remove the outermost set of double quotes from all arguments. */
2120 for (i = 1; argvec[i] != 0; i++)
2123 char *temp, *newtemp;
2126 len = strlen (temp);
2127 for (j = 0; j < len; j++)
2131 newtemp = xmalloc (len + 2);
2132 strncpy (newtemp, temp, j);
2134 strncpy (&newtemp [j+1], &temp [j], len-j);
2135 newtemp [len+1] = 0;
2145 return (const char* const*) argvec;
2148 #define FIX_ARGV(a) fix_argv(a)
2152 #define FIX_ARGV(a) a
2157 pexecute (search_flag, program, argv, not_last)
2163 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2165 #endif /* OS2 or _WIN32 */
2168 /* Execute the command specified by the arguments on the current line of spec.
2169 When using pipes, this includes several piped-together commands
2170 with `|' between them.
2172 Return 0 if successful, -1 if failed. */
2178 int n_commands; /* # of command. */
2182 char *prog; /* program name. */
2183 char **argv; /* vector of args. */
2184 int pid; /* pid of process for this command. */
2187 struct command *commands; /* each command buffer with above info. */
2189 /* Count # of piped commands. */
2190 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2191 if (strcmp (argbuf[i], "|") == 0)
2194 /* Get storage for each command. */
2196 = (struct command *) alloca (n_commands * sizeof (struct command));
2198 /* Split argbuf into its separate piped processes,
2199 and record info about each one.
2200 Also search for the programs that are to be run. */
2202 commands[0].prog = argbuf[0]; /* first command. */
2203 commands[0].argv = &argbuf[0];
2204 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2206 commands[0].argv[0] = string;
2208 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2209 if (strcmp (argbuf[i], "|") == 0)
2210 { /* each command. */
2212 fatal ("-pipe not supported under MS-DOS");
2214 argbuf[i] = 0; /* termination of command args. */
2215 commands[n_commands].prog = argbuf[i + 1];
2216 commands[n_commands].argv = &argbuf[i + 1];
2217 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2219 commands[n_commands].argv[0] = string;
2223 argbuf[argbuf_index] = 0;
2225 /* If -v, print what we are about to do, and maybe query. */
2229 /* Print each piped command as a separate line. */
2230 for (i = 0; i < n_commands ; i++)
2234 for (j = commands[i].argv; *j; j++)
2235 fprintf (stderr, " %s", *j);
2237 /* Print a pipe symbol after all but the last command. */
2238 if (i + 1 != n_commands)
2239 fprintf (stderr, " |");
2240 fprintf (stderr, "\n");
2244 fprintf (stderr, "\nGo ahead? (y or n) ");
2248 while (getchar () != '\n') ;
2249 if (i != 'y' && i != 'Y')
2254 /* Run each piped subprocess. */
2256 last_pipe_input = STDIN_FILE_NO;
2257 for (i = 0; i < n_commands; i++)
2259 char *string = commands[i].argv[0];
2261 commands[i].pid = pexecute (string != commands[i].prog,
2262 string, commands[i].argv,
2263 i + 1 < n_commands);
2265 if (string != commands[i].prog)
2271 /* Wait for all the subprocesses to finish.
2272 We don't care what order they finish in;
2273 we know that N_COMMANDS waits will get them all.
2274 Ignore subprocesses that we don't know about,
2275 since they can be spawned by the process that exec'ed us. */
2280 for (i = 0; i < n_commands; )
2287 status = pid = commands[i].pid;
2290 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2292 pid = wait (&status);
2298 for (j = 0; j < n_commands; j++)
2299 if (commands[j].pid == pid)
2304 if (WIFSIGNALED (status))
2306 fatal ("Internal compiler error: program %s got fatal signal %d",
2307 commands[j].prog, WTERMSIG (status));
2311 else if (WIFEXITED (status)
2312 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2322 /* Find all the switches given to us
2323 and make a vector describing them.
2324 The elements of the vector are strings, one per switch given.
2325 If a switch uses following arguments, then the `part1' field
2326 is the switch itself and the `args' field
2327 is a null-terminated vector containing the following arguments.
2328 The `live_cond' field is 1 if the switch is true in a conditional spec,
2329 -1 if false (overridden by a later switch), and is initialized to zero.
2330 The `valid' field is nonzero if any spec has looked at this switch;
2331 if it remains zero at the end of the run, it must be meaningless. */
2341 static struct switchstr *switches;
2343 static int n_switches;
2351 /* Also a vector of input files specified. */
2353 static struct infile *infiles;
2355 static int n_infiles;
2357 /* And a vector of corresponding output files is made up later. */
2359 static char **outfiles;
2361 /* Create the vector `switches' and its contents.
2362 Store its length in `n_switches'. */
2365 process_command (argc, argv)
2371 char *spec_lang = 0;
2372 int last_language_n_infiles;
2374 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2379 /* Figure compiler version from version string. */
2381 compiler_version = save_string (version_string, strlen (version_string));
2382 for (temp = compiler_version; *temp; ++temp)
2391 /* Set up the default search paths. */
2393 if (gcc_exec_prefix)
2395 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2396 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2399 /* COMPILER_PATH and LIBRARY_PATH have values
2400 that are lists of directory names with colons. */
2402 temp = getenv ("COMPILER_PATH");
2405 char *startp, *endp;
2406 char *nstore = (char *) alloca (strlen (temp) + 3);
2408 startp = endp = temp;
2411 if (*endp == PATH_SEPARATOR || *endp == 0)
2413 strncpy (nstore, startp, endp-startp);
2415 strcpy (nstore, concat (".", dir_separator_str));
2416 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2418 nstore[endp-startp] = DIR_SEPARATOR;
2419 nstore[endp-startp+1] = 0;
2422 nstore[endp-startp] = 0;
2423 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2426 endp = startp = endp + 1;
2433 temp = getenv ("LIBRARY_PATH");
2434 if (temp && ! cross_compile)
2436 char *startp, *endp;
2437 char *nstore = (char *) alloca (strlen (temp) + 3);
2439 startp = endp = temp;
2442 if (*endp == PATH_SEPARATOR || *endp == 0)
2444 strncpy (nstore, startp, endp-startp);
2446 strcpy (nstore, concat (".", dir_separator_str));
2447 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2449 nstore[endp-startp] = DIR_SEPARATOR;
2450 nstore[endp-startp+1] = 0;
2453 nstore[endp-startp] = 0;
2454 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2457 endp = startp = endp + 1;
2464 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2465 temp = getenv ("LPATH");
2466 if (temp && ! cross_compile)
2468 char *startp, *endp;
2469 char *nstore = (char *) alloca (strlen (temp) + 3);
2471 startp = endp = temp;
2474 if (*endp == PATH_SEPARATOR || *endp == 0)
2476 strncpy (nstore, startp, endp-startp);
2478 strcpy (nstore, concat (".", dir_separator_str));
2479 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2481 nstore[endp-startp] = DIR_SEPARATOR;
2482 nstore[endp-startp+1] = 0;
2485 nstore[endp-startp] = 0;
2486 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2489 endp = startp = endp + 1;
2496 /* Convert new-style -- options to old-style. */
2497 translate_options (&argc, &argv);
2499 /* Scan argv twice. Here, the first time, just count how many switches
2500 there will be in their vector, and how many input files in theirs.
2501 Here we also parse the switches that cc itself uses (e.g. -v). */
2503 for (i = 1; i < argc; i++)
2505 if (! strcmp (argv[i], "-dumpspecs"))
2507 printf ("*asm:\n%s\n\n", asm_spec);
2508 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2509 printf ("*cpp:\n%s\n\n", cpp_spec);
2510 printf ("*cc1:\n%s\n\n", cc1_spec);
2511 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2512 printf ("*endfile:\n%s\n\n", endfile_spec);
2513 printf ("*link:\n%s\n\n", link_spec);
2514 printf ("*lib:\n%s\n\n", lib_spec);
2515 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2516 printf ("*startfile:\n%s\n\n", startfile_spec);
2517 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2518 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2519 printf ("*predefines:\n%s\n\n", cpp_predefines);
2520 printf ("*cross_compile:\n%d\n\n", cross_compile);
2521 printf ("*multilib:\n%s\n\n", multilib_select);
2525 else if (! strcmp (argv[i], "-dumpversion"))
2527 printf ("%s\n", version_string);
2530 else if (! strcmp (argv[i], "-dumpmachine"))
2532 printf ("%s\n", spec_machine);
2535 else if (! strcmp (argv[i], "-print-search-dirs"))
2536 print_search_dirs = 1;
2537 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2538 print_file_name = "libgcc.a";
2539 else if (! strncmp (argv[i], "-print-file-name=", 17))
2540 print_file_name = argv[i] + 17;
2541 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2542 print_prog_name = argv[i] + 17;
2543 else if (! strcmp (argv[i], "-print-multi-lib"))
2544 print_multi_lib = 1;
2545 else if (! strcmp (argv[i], "-print-multi-directory"))
2546 print_multi_directory = 1;
2547 else if (! strncmp (argv[i], "-Wa,", 4))
2550 /* Pass the rest of this option to the assembler. */
2552 n_assembler_options++;
2553 if (!assembler_options)
2555 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2558 = (char **) xrealloc (assembler_options,
2559 n_assembler_options * sizeof (char **));
2561 /* Split the argument at commas. */
2563 for (j = 4; argv[i][j]; j++)
2564 if (argv[i][j] == ',')
2566 assembler_options[n_assembler_options - 1]
2567 = save_string (argv[i] + prev, j - prev);
2568 n_assembler_options++;
2570 = (char **) xrealloc (assembler_options,
2571 n_assembler_options * sizeof (char **));
2574 /* Record the part after the last comma. */
2575 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2577 else if (! strncmp (argv[i], "-Wp,", 4))
2580 /* Pass the rest of this option to the preprocessor. */
2582 n_preprocessor_options++;
2583 if (!preprocessor_options)
2584 preprocessor_options
2585 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2587 preprocessor_options
2588 = (char **) xrealloc (preprocessor_options,
2589 n_preprocessor_options * sizeof (char **));
2591 /* Split the argument at commas. */
2593 for (j = 4; argv[i][j]; j++)
2594 if (argv[i][j] == ',')
2596 preprocessor_options[n_preprocessor_options - 1]
2597 = save_string (argv[i] + prev, j - prev);
2598 n_preprocessor_options++;
2599 preprocessor_options
2600 = (char **) xrealloc (preprocessor_options,
2601 n_preprocessor_options * sizeof (char **));
2604 /* Record the part after the last comma. */
2605 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2607 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2608 /* The +e options to the C++ front-end. */
2610 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2613 /* Split the argument at commas. */
2614 for (j = 3; argv[i][j]; j++)
2615 n_infiles += (argv[i][j] == ',');
2617 else if (strcmp (argv[i], "-Xlinker") == 0)
2620 fatal ("argument to `-Xlinker' is missing");
2625 else if (strncmp (argv[i], "-l", 2) == 0)
2627 else if (argv[i][0] == '-' && argv[i][1] != 0)
2629 register char *p = &argv[i][1];
2630 register int c = *p;
2635 if (p[1] == 0 && i + 1 == argc)
2636 fatal ("argument to `-b' is missing");
2638 spec_machine = argv[++i];
2640 spec_machine = p + 1;
2645 int *temp = (int *) xmalloc (sizeof (int));
2647 if (p[1] == 0 && i + 1 == argc)
2648 fatal ("argument to `-B' is missing");
2653 add_prefix (&exec_prefixes, value, 1, 0, temp);
2654 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2655 add_prefix (&include_prefixes, concat (value, "include"),
2658 /* As a kludge, if the arg is "[foo/]stageN/", just add
2659 "[foo/]include" to the include prefix. */
2661 int len = strlen (value);
2664 && (value[len - 8] == '/'
2665 || value[len - 8] == DIR_SEPARATOR)))
2666 && strncmp (value + len - 7, "stage", 5) == 0
2667 && isdigit (value[len - 2])
2668 && (value[len - 1] == '/'
2669 || value[len - 1] == DIR_SEPARATOR))
2672 add_prefix (&include_prefixes, "include", 1, 0, 0);
2675 char *string = xmalloc (len + 1);
2676 strncpy (string, value, len-7);
2677 strcat (string, "include");
2678 add_prefix (&include_prefixes, string, 1, 0, 0);
2685 case 'v': /* Print our subcommands and print versions. */
2687 /* If they do anything other than exactly `-v', don't set
2688 verbose_flag; rather, continue on to give the error. */
2695 if (p[1] == 0 && i + 1 == argc)
2696 fatal ("argument to `-V' is missing");
2698 spec_version = argv[++i];
2700 spec_version = p + 1;
2701 compiler_version = spec_version;
2705 if (!strcmp (p, "save-temps"))
2707 save_temps_flag = 1;
2714 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2715 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2716 else if (WORD_SWITCH_TAKES_ARG (p))
2717 i += WORD_SWITCH_TAKES_ARG (p);
2724 /* Set up the search paths before we go looking for config files. */
2726 /* These come before the md prefixes so that we will find gcc's subcommands
2727 (such as cpp) rather than those of the host system. */
2728 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2729 as well as trying the machine and the version. */
2731 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2732 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2735 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2736 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2738 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2741 /* If tooldir is relative, base it on exec_prefixes. A relative
2742 tooldir lets us move the installed tree as a unit.
2744 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2745 directories, so that we can search both the user specified directory
2746 and the standard place. */
2748 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2750 if (gcc_exec_prefix)
2752 char *gcc_exec_tooldir_prefix
2753 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2754 spec_version, dir_separator_str, tooldir_prefix);
2756 add_prefix (&exec_prefixes,
2757 concat3 (gcc_exec_tooldir_prefix, "bin",
2760 add_prefix (&startfile_prefixes,
2761 concat3 (gcc_exec_tooldir_prefix, "lib",
2766 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2767 dir_separator_str, spec_version,
2768 dir_separator_str, tooldir_prefix);
2771 add_prefix (&exec_prefixes,
2772 concat3 (tooldir_prefix, "bin", dir_separator_str),
2774 add_prefix (&startfile_prefixes,
2775 concat3 (tooldir_prefix, "lib", dir_separator_str),
2778 /* More prefixes are enabled in main, after we read the specs file
2779 and determine whether this is cross-compilation or not. */
2782 /* Then create the space for the vectors and scan again. */
2784 switches = ((struct switchstr *)
2785 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2786 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2789 last_language_n_infiles = -1;
2791 /* This, time, copy the text of each switch and store a pointer
2792 to the copy in the vector of switches.
2793 Store all the infiles in their vector. */
2795 for (i = 1; i < argc; i++)
2797 /* Just skip the switches that were handled by the preceding loop. */
2798 if (! strncmp (argv[i], "-Wa,", 4))
2800 else if (! strncmp (argv[i], "-Wp,", 4))
2802 else if (! strcmp (argv[i], "-print-search-dirs"))
2804 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2806 else if (! strncmp (argv[i], "-print-file-name=", 17))
2808 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2810 else if (! strcmp (argv[i], "-print-multi-lib"))
2812 else if (! strcmp (argv[i], "-print-multi-directory"))
2814 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2816 /* Compensate for the +e options to the C++ front-end;
2817 they're there simply for cfront call-compatibility. We do
2818 some magic in default_compilers to pass them down properly.
2819 Note we deliberately start at the `+' here, to avoid passing
2820 -e0 or -e1 down into the linker. */
2821 switches[n_switches].part1 = &argv[i][0];
2822 switches[n_switches].args = 0;
2823 switches[n_switches].live_cond = 0;
2824 switches[n_switches].valid = 0;
2827 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2830 /* Split the argument at commas. */
2832 for (j = 4; argv[i][j]; j++)
2833 if (argv[i][j] == ',')
2835 infiles[n_infiles].language = 0;
2836 infiles[n_infiles++].name
2837 = save_string (argv[i] + prev, j - prev);
2840 /* Record the part after the last comma. */
2841 infiles[n_infiles].language = 0;
2842 infiles[n_infiles++].name = argv[i] + prev;
2844 else if (strcmp (argv[i], "-Xlinker") == 0)
2846 infiles[n_infiles].language = 0;
2847 infiles[n_infiles++].name = argv[++i];
2849 else if (strncmp (argv[i], "-l", 2) == 0)
2851 infiles[n_infiles].language = 0;
2852 infiles[n_infiles++].name = argv[i];
2854 else if (argv[i][0] == '-' && argv[i][1] != 0)
2856 register char *p = &argv[i][1];
2857 register int c = *p;
2859 if (c == 'B' || c == 'b' || c == 'V')
2861 /* Skip a separate arg, if any. */
2868 if (p[1] == 0 && i + 1 == argc)
2869 fatal ("argument to `-x' is missing");
2871 spec_lang = argv[++i];
2874 if (! strcmp (spec_lang, "none"))
2875 /* Suppress the warning if -xnone comes after the last input
2876 file, because alternate command interfaces like g++ might
2877 find it useful to place -xnone after each input file. */
2880 last_language_n_infiles = n_infiles;
2883 switches[n_switches].part1 = p;
2884 /* Deal with option arguments in separate argv elements. */
2885 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2886 || WORD_SWITCH_TAKES_ARG (p))
2889 int n_args = WORD_SWITCH_TAKES_ARG (p);
2893 /* Count only the option arguments in separate argv elements. */
2894 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2896 if (i + n_args >= argc)
2897 fatal ("argument to `-%s' is missing", p);
2898 switches[n_switches].args
2899 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2901 switches[n_switches].args[j++] = argv[++i];
2902 /* Null-terminate the vector. */
2903 switches[n_switches].args[j] = 0;
2905 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2907 /* On some systems, ld cannot handle -o or -L without space.
2908 So split the -o or -L from its argument. */
2909 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2910 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2911 switches[n_switches].args[0] = xmalloc (strlen (p));
2912 strcpy (switches[n_switches].args[0], &p[1]);
2913 switches[n_switches].args[1] = 0;
2916 switches[n_switches].args = 0;
2918 switches[n_switches].live_cond = 0;
2919 switches[n_switches].valid = 0;
2920 /* This is always valid, since gcc.c itself understands it. */
2921 if (!strcmp (p, "save-temps"))
2922 switches[n_switches].valid = 1;
2927 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2929 perror_with_name (argv[i]);
2934 infiles[n_infiles].language = spec_lang;
2935 infiles[n_infiles++].name = argv[i];
2940 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2941 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2943 switches[n_switches].part1 = 0;
2944 infiles[n_infiles].name = 0;
2947 /* Process a spec string, accumulating and running commands. */
2949 /* These variables describe the input file name.
2950 input_file_number is the index on outfiles of this file,
2951 so that the output file name can be stored for later use by %o.
2952 input_basename is the start of the part of the input file
2953 sans all directory names, and basename_length is the number
2954 of characters starting there excluding the suffix .c or whatever. */
2956 static char *input_filename;
2957 static int input_file_number;
2958 static int input_filename_length;
2959 static int basename_length;
2960 static char *input_basename;
2961 static char *input_suffix;
2963 /* These are variables used within do_spec and do_spec_1. */
2965 /* Nonzero if an arg has been started and not yet terminated
2966 (with space, tab or newline). */
2967 static int arg_going;
2969 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2970 is a temporary file name. */
2971 static int delete_this_arg;
2973 /* Nonzero means %w has been seen; the next arg to be terminated
2974 is the output file name of this compilation. */
2975 static int this_is_output_file;
2977 /* Nonzero means %s has been seen; the next arg to be terminated
2978 is the name of a library file and we should try the standard
2979 search dirs for it. */
2980 static int this_is_library_file;
2982 /* Nonzero means that the input of this command is coming from a pipe. */
2983 static int input_from_pipe;
2985 /* Process the spec SPEC and run the commands specified therein.
2986 Returns 0 if the spec is successfully processed; -1 if failed. */
2996 delete_this_arg = 0;
2997 this_is_output_file = 0;
2998 this_is_library_file = 0;
2999 input_from_pipe = 0;
3001 value = do_spec_1 (spec, 0, NULL_PTR);
3003 /* Force out any unfinished command.
3004 If -pipe, this forces out the last command if it ended in `|'. */
3007 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3010 if (argbuf_index > 0)
3017 /* Process the sub-spec SPEC as a portion of a larger spec.
3018 This is like processing a whole spec except that we do
3019 not initialize at the beginning and we do not supply a
3020 newline by default at the end.
3021 INSWITCH nonzero means don't process %-sequences in SPEC;
3022 in this case, % is treated as an ordinary character.
3023 This is used while substituting switches.
3024 INSWITCH nonzero also causes SPC not to terminate an argument.
3026 Value is zero unless a line was finished
3027 and the command on that line reported an error. */
3030 do_spec_1 (spec, inswitch, soft_matched_part)
3033 char *soft_matched_part;
3035 register char *p = spec;
3042 /* If substituting a switch, treat all chars like letters.
3043 Otherwise, NL, SPC, TAB and % are special. */
3044 switch (inswitch ? 'a' : c)
3047 /* End of line: finish any pending argument,
3048 then run the pending command if one has been started. */
3051 obstack_1grow (&obstack, 0);
3052 string = obstack_finish (&obstack);
3053 if (this_is_library_file)
3054 string = find_file (string);
3055 store_arg (string, delete_this_arg, this_is_output_file);
3056 if (this_is_output_file)
3057 outfiles[input_file_number] = string;
3061 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3064 for (i = 0; i < n_switches; i++)
3065 if (!strcmp (switches[i].part1, "pipe"))
3068 /* A `|' before the newline means use a pipe here,
3069 but only if -pipe was specified.
3070 Otherwise, execute now and don't pass the `|' as an arg. */
3073 input_from_pipe = 1;
3074 switches[i].valid = 1;
3081 if (argbuf_index > 0)
3087 /* Reinitialize for a new command, and for a new argument. */
3090 delete_this_arg = 0;
3091 this_is_output_file = 0;
3092 this_is_library_file = 0;
3093 input_from_pipe = 0;
3097 /* End any pending argument. */
3100 obstack_1grow (&obstack, 0);
3101 string = obstack_finish (&obstack);
3102 if (this_is_library_file)
3103 string = find_file (string);
3104 store_arg (string, delete_this_arg, this_is_output_file);
3105 if (this_is_output_file)
3106 outfiles[input_file_number] = string;
3110 obstack_1grow (&obstack, c);
3116 /* Space or tab ends an argument if one is pending. */
3119 obstack_1grow (&obstack, 0);
3120 string = obstack_finish (&obstack);
3121 if (this_is_library_file)
3122 string = find_file (string);
3123 store_arg (string, delete_this_arg, this_is_output_file);
3124 if (this_is_output_file)
3125 outfiles[input_file_number] = string;
3127 /* Reinitialize for a new argument. */
3129 delete_this_arg = 0;
3130 this_is_output_file = 0;
3131 this_is_library_file = 0;
3138 fatal ("Invalid specification! Bug in cc.");
3141 obstack_grow (&obstack, input_basename, basename_length);
3146 delete_this_arg = 2;
3149 /* Dump out the directories specified with LIBRARY_PATH,
3150 followed by the absolute directories
3151 that we search for startfiles. */
3154 struct prefix_list *pl = startfile_prefixes.plist;
3156 char *buffer = (char *) xmalloc (bufsize);
3159 for (; pl; pl = pl->next)
3161 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3162 /* Used on systems which record the specified -L dirs
3163 and use them to search for dynamic linking. */
3164 /* Relative directories always come from -B,
3165 and it is better not to use them for searching
3166 at run time. In particular, stage1 loses */
3167 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3170 /* Try subdirectory if there is one. */
3171 if (multilib_dir != NULL)
3175 if (strlen (pl->prefix) + strlen (machine_suffix)
3177 bufsize = (strlen (pl->prefix)
3178 + strlen (machine_suffix)) * 2 + 1;
3179 buffer = (char *) xrealloc (buffer, bufsize);
3180 strcpy (buffer, pl->prefix);
3181 strcat (buffer, machine_suffix);
3182 if (is_directory (buffer, multilib_dir, 1))
3184 do_spec_1 ("-L", 0, NULL_PTR);
3185 #ifdef SPACE_AFTER_L_OPTION
3186 do_spec_1 (" ", 0, NULL_PTR);
3188 do_spec_1 (buffer, 1, NULL_PTR);
3189 do_spec_1 (multilib_dir, 1, NULL_PTR);
3190 /* Make this a separate argument. */
3191 do_spec_1 (" ", 0, NULL_PTR);
3194 if (!pl->require_machine_suffix)
3196 if (is_directory (pl->prefix, multilib_dir, 1))
3198 do_spec_1 ("-L", 0, NULL_PTR);
3199 #ifdef SPACE_AFTER_L_OPTION
3200 do_spec_1 (" ", 0, NULL_PTR);
3202 do_spec_1 (pl->prefix, 1, NULL_PTR);
3203 do_spec_1 (multilib_dir, 1, NULL_PTR);
3204 /* Make this a separate argument. */
3205 do_spec_1 (" ", 0, NULL_PTR);
3211 if (is_directory (pl->prefix, machine_suffix, 1))
3213 do_spec_1 ("-L", 0, NULL_PTR);
3214 #ifdef SPACE_AFTER_L_OPTION
3215 do_spec_1 (" ", 0, NULL_PTR);
3217 do_spec_1 (pl->prefix, 1, NULL_PTR);
3218 /* Remove slash from machine_suffix. */
3219 if (strlen (machine_suffix) >= bufsize)
3220 bufsize = strlen (machine_suffix) * 2 + 1;
3221 buffer = (char *) xrealloc (buffer, bufsize);
3222 strcpy (buffer, machine_suffix);
3223 idx = strlen (buffer);
3224 if (buffer[idx - 1] == '/'
3225 || buffer[idx - 1] == DIR_SEPARATOR)
3226 buffer[idx - 1] = 0;
3227 do_spec_1 (buffer, 1, NULL_PTR);
3228 /* Make this a separate argument. */
3229 do_spec_1 (" ", 0, NULL_PTR);
3232 if (!pl->require_machine_suffix)
3234 if (is_directory (pl->prefix, "", 1))
3236 do_spec_1 ("-L", 0, NULL_PTR);
3237 #ifdef SPACE_AFTER_L_OPTION
3238 do_spec_1 (" ", 0, NULL_PTR);
3240 /* Remove slash from pl->prefix. */
3241 if (strlen (pl->prefix) >= bufsize)
3242 bufsize = strlen (pl->prefix) * 2 + 1;
3243 buffer = (char *) xrealloc (buffer, bufsize);
3244 strcpy (buffer, pl->prefix);
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);
3260 /* {...:%efoo} means report an error with `foo' as error message
3261 and don't execute any more commands for this file. */
3265 while (*p != 0 && *p != '\n') p++;
3266 buf = (char *) alloca (p - q + 1);
3267 strncpy (buf, q, p - q);
3277 if (save_temps_flag)
3279 obstack_grow (&obstack, input_basename, basename_length);
3280 delete_this_arg = 0;
3284 #ifdef MKTEMP_EACH_FILE
3285 /* ??? This has a problem: the total number of
3286 values mktemp can return is limited.
3287 That matters for the names of object files.
3288 In 2.4, do something about that. */
3289 struct temp_name *t;
3291 while (*p == '.' || isalpha (*p))
3294 /* See if we already have an association of %g/%u/%U and
3296 for (t = temp_names; t; t = t->next)
3297 if (t->length == p - suffix
3298 && strncmp (t->suffix, suffix, p - suffix) == 0
3299 && t->unique == (c != 'g'))
3302 /* Make a new association if needed. %u requires one. */
3303 if (t == 0 || c == 'u')
3307 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3308 t->next = temp_names;
3311 t->length = p - suffix;
3312 t->suffix = save_string (suffix, p - suffix);
3313 t->unique = (c != 'g');
3314 choose_temp_base ();
3315 t->filename = temp_filename;
3316 t->filename_length = temp_filename_length;
3319 obstack_grow (&obstack, t->filename, t->filename_length);
3320 delete_this_arg = 1;
3322 obstack_grow (&obstack, temp_filename, temp_filename_length);
3323 if (c == 'u' || c == 'U')
3329 sprintf (buff, "%d", unique);
3330 obstack_grow (&obstack, buff, strlen (buff));
3333 delete_this_arg = 1;
3339 obstack_grow (&obstack, input_filename, input_filename_length);
3345 struct prefix_list *pl = include_prefixes.plist;
3347 if (gcc_exec_prefix)
3349 do_spec_1 ("-iprefix", 1, NULL_PTR);
3350 /* Make this a separate argument. */
3351 do_spec_1 (" ", 0, NULL_PTR);
3352 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3353 do_spec_1 (" ", 0, NULL_PTR);
3356 for (; pl; pl = pl->next)
3358 do_spec_1 ("-isystem", 1, NULL_PTR);
3359 /* Make this a separate argument. */
3360 do_spec_1 (" ", 0, NULL_PTR);
3361 do_spec_1 (pl->prefix, 1, NULL_PTR);
3362 do_spec_1 (" ", 0, NULL_PTR);
3370 for (f = 0; f < n_infiles; f++)
3371 store_arg (outfiles[f], 0, 0);
3376 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3381 this_is_library_file = 1;
3385 this_is_output_file = 1;
3390 int index = argbuf_index;
3391 /* Handle the {...} following the %W. */
3394 p = handle_braces (p + 1);
3397 /* If any args were output, mark the last one for deletion
3399 if (argbuf_index != index)
3400 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3404 /* %x{OPTION} records OPTION for %X to output. */
3410 /* Skip past the option value and make a copy. */
3415 string = save_string (p1 + 1, p - p1 - 2);
3417 /* See if we already recorded this option. */
3418 for (i = 0; i < n_linker_options; i++)
3419 if (! strcmp (string, linker_options[i]))
3425 /* This option is new; add it. */
3427 if (!linker_options)
3429 = (char **) xmalloc (n_linker_options * sizeof (char **));
3432 = (char **) xrealloc (linker_options,
3433 n_linker_options * sizeof (char **));
3435 linker_options[n_linker_options - 1] = string;
3439 /* Dump out the options accumulated previously using %x. */
3441 for (i = 0; i < n_linker_options; i++)
3443 do_spec_1 (linker_options[i], 1, NULL_PTR);
3444 /* Make each accumulated option a separate argument. */
3445 do_spec_1 (" ", 0, NULL_PTR);
3449 /* Dump out the options accumulated previously using -Wa,. */
3451 for (i = 0; i < n_assembler_options; i++)
3453 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3454 /* Make each accumulated option a separate argument. */
3455 do_spec_1 (" ", 0, NULL_PTR);
3459 /* Dump out the options accumulated previously using -Wp,. */
3461 for (i = 0; i < n_preprocessor_options; i++)
3463 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3464 /* Make each accumulated option a separate argument. */
3465 do_spec_1 (" ", 0, NULL_PTR);
3469 /* Here are digits and numbers that just process
3470 a certain constant string as a spec. */
3473 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3479 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3485 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3491 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3497 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3503 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3509 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3515 value = do_spec_1 (link_spec, 0, NULL_PTR);
3521 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3527 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3534 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3538 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3542 if (! strncmp (y, "-D", 2))
3543 /* Copy the whole option. */
3544 while (*y && *y != ' ' && *y != '\t')
3546 else if (*y == ' ' || *y == '\t')
3547 /* Copy whitespace to the result. */
3549 /* Don't copy other options. */
3556 value = do_spec_1 (buf, 0, NULL_PTR);
3564 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3568 /* Copy all of CPP_PREDEFINES into BUF,
3569 but put __ after every -D and at the end of each arg. */
3573 if (! strncmp (y, "-D", 2))
3581 || (*(y+1) != '_' && ! isupper (*(y+1))))
3583 /* Stick __ at front of macro name. */
3586 /* Arrange to stick __ at the end as well. */
3590 /* Copy the macro name. */
3591 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3600 /* Copy the value given, if any. */
3601 while (*y && *y != ' ' && *y != '\t')
3604 else if (*y == ' ' || *y == '\t')
3605 /* Copy whitespace to the result. */
3607 /* Don't copy -A options */
3613 /* Copy all of CPP_PREDEFINES into BUF,
3614 but put __ after every -D. */
3618 if (! strncmp (y, "-D", 2))
3623 || (*(y+1) != '_' && ! isupper (*(y+1))))
3625 /* Stick -D__ at front of macro name. */
3631 /* Copy the macro name. */
3632 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3635 /* Copy the value given, if any. */
3636 while (*y && *y != ' ' && *y != '\t')
3641 /* Do not copy this macro - we have just done it before */
3642 while (*y && *y != ' ' && *y != '\t')
3646 else if (*y == ' ' || *y == '\t')
3647 /* Copy whitespace to the result. */
3649 /* Don't copy -A options */
3655 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3659 if (! strncmp (y, "-A", 2))
3660 /* Copy the whole option. */
3661 while (*y && *y != ' ' && *y != '\t')
3663 else if (*y == ' ' || *y == '\t')
3664 /* Copy whitespace to the result. */
3666 /* Don't copy other options. */
3673 value = do_spec_1 (buf, 0, NULL_PTR);
3680 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3685 /* Here we define characters other than letters and digits. */
3688 p = handle_braces (p);
3694 obstack_1grow (&obstack, '%');
3698 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3699 do_spec_1 (" ", 0, NULL_PTR);
3702 /* Process a string found as the value of a spec given by name.
3703 This feature allows individual machine descriptions
3704 to add and use their own specs.
3705 %[...] modifies -D options the way %P does;
3706 %(...) uses the spec unmodified. */
3711 struct spec_list *sl;
3714 /* The string after the S/P is the name of a spec that is to be
3716 while (*p && *p != ')' && *p != ']')
3719 /* See if it's in the list */
3720 for (len = p - name, sl = specs; sl; sl = sl->next)
3721 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3731 value = do_spec_1 (name, 0, NULL_PTR);
3737 char *x = (char *) alloca (strlen (name) * 2 + 1);
3741 /* Copy all of NAME into BUF, but put __ after
3742 every -D and at the end of each arg, */
3745 if (! strncmp (y, "-D", 2))
3753 else if (*y == ' ' || *y == 0)
3767 value = do_spec_1 (buf, 0, NULL_PTR);
3773 /* Discard the closing paren or bracket. */
3781 int c1 = *p++; /* Select first or second version number. */
3782 char *v = compiler_version;
3784 /* If desired, advance to second version number. */
3787 /* Set P after the first period. */
3788 while (*v != 0 && *v != ' ' && *v != '.')
3793 /* Set Q at the next period or at the end. */
3795 while (*q != 0 && *q != ' ' && *q != '.')
3797 /* Empty string means zero. */
3803 /* Put that part into the command. */
3804 obstack_grow (&obstack, v, q - v);
3810 if (input_from_pipe)
3811 do_spec_1 ("-", 0, NULL_PTR);
3820 /* Backslash: treat next character as ordinary. */
3825 /* Ordinary character: put it into the current argument. */
3826 obstack_1grow (&obstack, c);
3830 return 0; /* End of string */
3833 /* Return 0 if we call do_spec_1 and that returns -1. */
3846 /* A `|' after the open-brace means,
3847 if the test fails, output a single minus sign rather than nothing.
3848 This is used in %{|!pipe:...}. */
3852 /* A `!' after the open-brace negates the condition:
3853 succeed if the specified switch is not present. */
3857 /* A `.' after the open-brace means test against the current suffix. */
3867 while (*p != ':' && *p != '}') p++;
3870 register int count = 1;
3888 int found = (input_suffix != 0
3889 && strlen (input_suffix) == p - filter
3890 && strncmp (input_suffix, filter, p - filter) == 0);
3896 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3901 else if (p[-1] == '*' && p[0] == '}')
3903 /* Substitute all matching switches as separate args. */
3906 for (i = 0; i < n_switches; i++)
3907 if (!strncmp (switches[i].part1, filter, p - filter)
3908 && check_live_switch (i, p - filter))
3913 /* Test for presence of the specified switch. */
3917 /* If name specified ends in *, as in {x*:...},
3918 check for %* and handle that case. */
3919 if (p[-1] == '*' && !negate)
3924 /* First see whether we have %*. */
3928 if (*r == '%' && r[1] == '*')
3932 /* If we do, handle that case. */
3935 /* Substitute all matching switches as separate args.
3936 But do this by substituting for %*
3937 in the text that follows the colon. */
3939 unsigned hard_match_len = p - filter - 1;
3940 char *string = save_string (p + 1, q - p - 2);
3942 for (i = 0; i < n_switches; i++)
3943 if (!strncmp (switches[i].part1, filter, hard_match_len)
3944 && check_live_switch (i, -1))
3946 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3947 /* Pass any arguments this switch has. */
3955 /* If name specified ends in *, as in {x*:...},
3956 check for presence of any switch name starting with x. */
3959 for (i = 0; i < n_switches; i++)
3961 unsigned hard_match_len = p - filter - 1;
3963 if (!strncmp (switches[i].part1, filter, hard_match_len)
3964 && check_live_switch (i, hard_match_len))
3970 /* Otherwise, check for presence of exact name specified. */
3973 for (i = 0; i < n_switches; i++)
3975 if (!strncmp (switches[i].part1, filter, p - filter)
3976 && switches[i].part1[p - filter] == 0
3977 && check_live_switch (i, -1))
3985 /* If it is as desired (present for %{s...}, absent for %{-s...})
3986 then substitute either the switch or the specified
3987 conditional text. */
3988 if (present != negate)
3996 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4002 /* Here if a %{|...} conditional fails: output a minus sign,
4003 which means "standard output" or "standard input". */
4004 do_spec_1 ("-", 0, NULL_PTR);
4011 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4012 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4013 spec, or -1 if either exact match or %* is used.
4015 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4016 whose value does not begin with "no-" is obsoleted by the same value
4017 with the "no-", similarly for a switch with the "no-" prefix. */
4020 check_live_switch (switchnum, prefix_length)
4024 char *name = switches[switchnum].part1;
4027 /* In the common case of {<at-most-one-letter>*}, a negating
4028 switch would always match, so ignore that case. We will just
4029 send the conflicting switches to the compiler phase. */
4030 if (prefix_length >= 0 && prefix_length <= 1)
4033 /* If we already processed this switch and determined if it was
4034 live or not, return our past determination. */
4035 if (switches[switchnum].live_cond != 0)
4036 return switches[switchnum].live_cond > 0;
4038 /* Now search for duplicate in a manner that depends on the name. */
4042 for (i = switchnum + 1; i < n_switches; i++)
4043 if (switches[i].part1[0] == 'O')
4045 switches[switchnum].valid = 1;
4046 switches[switchnum].live_cond = -1;
4051 case 'W': case 'f': case 'm':
4052 if (! strncmp (name + 1, "no-", 3))
4054 /* We have Xno-YYY, search for XYYY. */
4055 for (i = switchnum + 1; i < n_switches; i++)
4056 if (switches[i].part1[0] == name[0]
4057 && ! strcmp (&switches[i].part1[1], &name[4]))
4059 switches[switchnum].valid = 1;
4060 switches[switchnum].live_cond = -1;
4066 /* We have XYYY, search for Xno-YYY. */
4067 for (i = switchnum + 1; i < n_switches; i++)
4068 if (switches[i].part1[0] == name[0]
4069 && switches[i].part1[1] == 'n'
4070 && switches[i].part1[2] == 'o'
4071 && switches[i].part1[3] == '-'
4072 && !strcmp (&switches[i].part1[4], &name[1]))
4074 switches[switchnum].valid = 1;
4075 switches[switchnum].live_cond = -1;
4082 /* Otherwise the switch is live. */
4083 switches[switchnum].live_cond = 1;
4087 /* Pass a switch to the current accumulating command
4088 in the same form that we received it.
4089 SWITCHNUM identifies the switch; it is an index into
4090 the vector of switches gcc received, which is `switches'.
4091 This cannot fail since it never finishes a command line.
4093 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4096 give_switch (switchnum, omit_first_word)
4098 int omit_first_word;
4100 if (!omit_first_word)
4102 do_spec_1 ("-", 0, NULL_PTR);
4103 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4105 do_spec_1 (" ", 0, NULL_PTR);
4106 if (switches[switchnum].args != 0)
4109 for (p = switches[switchnum].args; *p; p++)
4111 do_spec_1 (*p, 1, NULL_PTR);
4112 do_spec_1 (" ", 0, NULL_PTR);
4115 switches[switchnum].valid = 1;
4118 /* Search for a file named NAME trying various prefixes including the
4119 user's -B prefix and some standard ones.
4120 Return the absolute file name found. If nothing is found, return NAME. */
4128 /* Try multilib_dir if it is defined. */
4129 if (multilib_dir != NULL)
4133 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4134 strcpy (try, multilib_dir);
4135 strcat (try, dir_separator_str);
4138 newname = find_a_file (&startfile_prefixes, try, R_OK);
4140 /* If we don't find it in the multi library dir, then fall
4141 through and look for it in the normal places. */
4142 if (newname != NULL)
4146 newname = find_a_file (&startfile_prefixes, name, R_OK);
4147 return newname ? newname : name;
4150 /* Determine whether a directory exists. If LINKER, return 0 for
4151 certain fixed names not needed by the linker. If not LINKER, it is
4152 only important to return 0 if the host machine has a small ARG_MAX
4156 is_directory (path1, path2, linker)
4161 int len1 = strlen (path1);
4162 int len2 = strlen (path2);
4163 char *path = (char *) alloca (3 + len1 + len2);
4167 #ifndef SMALL_ARG_MAX
4172 /* Construct the path from the two parts. Ensure the string ends with "/.".
4173 The resulting path will be a directory even if the given path is a
4175 bcopy (path1, path, len1);
4176 bcopy (path2, path + len1, len2);
4177 cp = path + len1 + len2;
4178 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4179 *cp++ = DIR_SEPARATOR;
4183 /* Exclude directories that the linker is known to search. */
4186 && strcmp (path, concat4 (dir_separator_str, "lib",
4187 dir_separator_str, ".")) == 0)
4189 && strcmp (path, concat6 (dir_separator_str, "usr",
4190 dir_separator_str, "lib",
4191 dir_separator_str, ".")) == 0)))
4194 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4197 /* On fatal signals, delete all the temporary files. */
4200 fatal_error (signum)
4203 signal (signum, SIG_DFL);
4204 delete_failure_queue ();
4205 delete_temp_files ();
4206 /* Get the same signal again, this time not handled,
4207 so its normal effect occurs. */
4208 kill (getpid (), signum);
4219 int linker_was_run = 0;
4220 char *explicit_link_files;
4224 p = argv[0] + strlen (argv[0]);
4225 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4228 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4229 signal (SIGINT, fatal_error);
4231 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4232 signal (SIGHUP, fatal_error);
4234 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4235 signal (SIGTERM, fatal_error);
4237 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4238 signal (SIGPIPE, fatal_error);
4242 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4244 obstack_init (&obstack);
4246 /* Set up to remember the pathname of gcc and any options
4247 needed for collect. We use argv[0] instead of programname because
4248 we need the complete pathname. */
4249 obstack_init (&collect_obstack);
4250 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4251 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4252 putenv (obstack_finish (&collect_obstack));
4254 #ifdef INIT_ENVIRONMENT
4255 /* Set up any other necessary machine specific environment variables. */
4256 putenv (INIT_ENVIRONMENT);
4259 /* Choose directory for temp files. */
4261 choose_temp_base ();
4263 /* Make a table of what switches there are (switches, n_switches).
4264 Make a table of specified input files (infiles, n_infiles).
4265 Decode switches that are handled locally. */
4267 process_command (argc, argv);
4269 /* Initialize the vector of specs to just the default.
4270 This means one element containing 0s, as a terminator. */
4272 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4273 bcopy ((char *) default_compilers, (char *) compilers,
4274 sizeof default_compilers);
4275 n_compilers = n_default_compilers;
4277 /* Read specs from a file if there is one. */
4279 machine_suffix = concat4 (spec_machine, dir_separator_str,
4280 spec_version, dir_separator_str);
4281 just_machine_suffix = concat (spec_machine, dir_separator_str);
4283 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4284 /* Read the specs file unless it is a default one. */
4285 if (specs_file != 0 && strcmp (specs_file, "specs"))
4286 read_specs (specs_file);
4288 /* If not cross-compiling, look for startfiles in the standard places. */
4289 /* The fact that these are done here, after reading the specs file,
4290 means that it cannot be found in these directories.
4291 But that's okay. It should never be there anyway. */
4294 #ifdef MD_EXEC_PREFIX
4295 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4296 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4299 #ifdef MD_STARTFILE_PREFIX
4300 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4303 #ifdef MD_STARTFILE_PREFIX_1
4304 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4307 /* If standard_startfile_prefix is relative, base it on
4308 standard_exec_prefix. This lets us move the installed tree
4309 as a unit. If GCC_EXEC_PREFIX is defined, base
4310 standard_startfile_prefix on that as well. */
4311 if (*standard_startfile_prefix == '/'
4312 || *standard_startfile_prefix == DIR_SEPARATOR)
4313 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4317 if (gcc_exec_prefix)
4318 add_prefix (&startfile_prefixes,
4319 concat (gcc_exec_prefix, standard_startfile_prefix),
4321 add_prefix (&startfile_prefixes,
4322 concat3 (standard_exec_prefix,
4324 standard_startfile_prefix),
4328 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4330 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4332 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4333 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4338 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4339 add_prefix (&startfile_prefixes,
4340 concat (gcc_exec_prefix, standard_startfile_prefix),
4344 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4345 if (gcc_exec_prefix)
4347 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4348 + strlen (spec_version)
4349 + strlen (spec_machine) + 3);
4350 strcpy (temp, gcc_exec_prefix);
4351 strcat (temp, spec_machine);
4352 strcat (temp, dir_separator_str);
4353 strcat (temp, spec_version);
4354 strcat (temp, dir_separator_str);
4355 gcc_exec_prefix = temp;
4358 /* Now we have the specs.
4359 Set the `valid' bits for switches that match anything in any spec. */
4361 validate_all_switches ();
4363 /* Now that we have the switches and the specs, set
4364 the subdirectory based on the options. */
4365 set_multilib_dir ();
4367 /* Warn about any switches that no pass was interested in. */
4369 for (i = 0; i < n_switches; i++)
4370 if (! switches[i].valid)
4371 error ("unrecognized option `-%s'", switches[i].part1);
4373 /* Obey some of the options. */
4375 if (print_search_dirs)
4377 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4378 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4379 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4383 if (print_file_name)
4385 printf ("%s\n", find_file (print_file_name));
4389 if (print_prog_name)
4391 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4392 printf ("%s\n", (newname ? newname : print_prog_name));
4396 if (print_multi_lib)
4398 print_multilib_info ();
4402 if (print_multi_directory)
4404 if (multilib_dir == NULL)
4407 printf ("%s\n", multilib_dir);
4413 if (! strcmp (version_string, compiler_version))
4414 fprintf (stderr, "gcc version %s\n", version_string);
4416 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4417 version_string, compiler_version);
4424 fatal ("No input files");
4426 /* Make a place to record the compiler output file names
4427 that correspond to the input files. */
4429 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4430 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4432 /* Record which files were specified explicitly as link input. */
4434 explicit_link_files = xmalloc (n_infiles);
4435 bzero (explicit_link_files, n_infiles);
4437 for (i = 0; i < n_infiles; i++)
4439 register struct compiler *cp = 0;
4440 int this_file_error = 0;
4442 /* Tell do_spec what to substitute for %i. */
4444 input_filename = infiles[i].name;
4445 input_filename_length = strlen (input_filename);
4446 input_file_number = i;
4448 /* Use the same thing in %o, unless cp->spec says otherwise. */
4450 outfiles[i] = input_filename;
4452 /* Figure out which compiler from the file's suffix. */
4454 cp = lookup_compiler (infiles[i].name, input_filename_length,
4455 infiles[i].language);
4459 /* Ok, we found an applicable compiler. Run its spec. */
4460 /* First say how much of input_filename to substitute for %b */
4464 input_basename = input_filename;
4465 for (p = input_filename; *p; p++)
4466 if (*p == '/' || *p == DIR_SEPARATOR)
4467 input_basename = p + 1;
4469 /* Find a suffix starting with the last period,
4470 and set basename_length to exclude that suffix. */
4471 basename_length = strlen (input_basename);
4472 p = input_basename + basename_length;
4473 while (p != input_basename && *p != '.') --p;
4474 if (*p == '.' && p != input_basename)
4476 basename_length = p - input_basename;
4477 input_suffix = p + 1;
4483 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4485 len += strlen (cp->spec[j]);
4487 p = (char *) xmalloc (len + 1);
4490 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4493 strcpy (p + len, cp->spec[j]);
4494 len += strlen (cp->spec[j]);
4497 value = do_spec (p);
4500 this_file_error = 1;
4503 /* If this file's name does not contain a recognized suffix,
4504 record it as explicit linker input. */
4507 explicit_link_files[i] = 1;
4509 /* Clear the delete-on-failure queue, deleting the files in it
4510 if this compilation failed. */
4512 if (this_file_error)
4514 delete_failure_queue ();
4517 /* If this compilation succeeded, don't delete those files later. */
4518 clear_failure_queue ();
4521 /* Run ld to link all the compiler output files. */
4523 if (error_count == 0)
4525 int tmp = execution_count;
4529 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4531 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4532 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4534 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4536 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4537 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4540 for (i = 0; i < n_switches; i++)
4544 obstack_grow (&collect_obstack, " ", 1);
4547 obstack_grow (&collect_obstack, "-", 1);
4548 obstack_grow (&collect_obstack, switches[i].part1,
4549 strlen (switches[i].part1));
4551 for (args = switches[i].args; args && *args; args++)
4553 obstack_grow (&collect_obstack, " ", 1);
4554 obstack_grow (&collect_obstack, *args, strlen (*args));
4557 obstack_grow (&collect_obstack, "\0", 1);
4558 putenv (obstack_finish (&collect_obstack));
4560 value = do_spec (link_command_spec);
4563 linker_was_run = (tmp != execution_count);
4566 /* Warn if a -B option was specified but the prefix was never used. */
4567 unused_prefix_warnings (&exec_prefixes);
4568 unused_prefix_warnings (&startfile_prefixes);
4570 /* If options said don't run linker,
4571 complain about input files to be given to the linker. */
4573 if (! linker_was_run && error_count == 0)
4574 for (i = 0; i < n_infiles; i++)
4575 if (explicit_link_files[i])
4576 error ("%s: linker input file unused since linking not done",
4579 /* Delete some or all of the temporary files we made. */
4582 delete_failure_queue ();
4583 delete_temp_files ();
4585 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4590 /* Find the proper compilation spec for the file name NAME,
4591 whose length is LENGTH. LANGUAGE is the specified language,
4592 or 0 if none specified. */
4594 static struct compiler *
4595 lookup_compiler (name, length, language)
4600 struct compiler *cp;
4602 /* Look for the language, if one is spec'd. */
4605 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4609 if (cp->suffix[0] == '@'
4610 && !strcmp (cp->suffix + 1, language))
4614 error ("language %s not recognized", language);
4617 /* Look for a suffix. */
4618 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4620 if (/* The suffix `-' matches only the file name `-'. */
4621 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4623 (strlen (cp->suffix) < length
4624 /* See if the suffix matches the end of NAME. */
4626 && (!strcmp (cp->suffix,
4627 name + length - strlen (cp->suffix))
4628 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4629 && !strcasecmp (cp->suffix,
4630 name + length - strlen (cp->suffix)))))
4632 && !strcmp (cp->suffix,
4633 name + length - strlen (cp->suffix))))
4636 if (cp->spec[0][0] == '@')
4638 struct compiler *new;
4639 /* An alias entry maps a suffix to a language.
4640 Search for the language; pass 0 for NAME and LENGTH
4641 to avoid infinite recursion if language not found.
4642 Construct the new compiler spec. */
4643 language = cp->spec[0] + 1;
4644 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4645 new->suffix = cp->suffix;
4646 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4647 (char *) new->spec, sizeof new->spec);
4650 /* A non-alias entry: return it. */
4662 register char *value = (char *) malloc (size);
4664 fatal ("virtual memory exhausted");
4669 xrealloc (ptr, size)
4673 register char *value = (char *) realloc (ptr, size);
4675 fatal ("virtual memory exhausted");
4679 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4685 int len1 = strlen (s1);
4686 int len2 = strlen (s2);
4687 char *result = xmalloc (len1 + len2 + 1);
4689 strcpy (result, s1);
4690 strcpy (result + len1, s2);
4691 *(result + len1 + len2) = 0;
4697 concat3 (s1, s2, s3)
4700 return concat (concat (s1, s2), s3);
4704 concat4 (s1, s2, s3, s4)
4705 char *s1, *s2, *s3, *s4;
4707 return concat (concat (s1, s2), concat (s3, s4));
4711 concat6 (s1, s2, s3, s4, s5, s6)
4712 char *s1, *s2, *s3, *s4, *s5, *s6;
4714 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4718 save_string (s, len)
4722 register char *result = xmalloc (len + 1);
4724 bcopy (s, result, len);
4730 pfatal_with_name (name)
4735 if (errno < sys_nerr)
4736 s = concat ("%s: ", my_strerror( errno ));
4738 s = "cannot open %s";
4743 perror_with_name (name)
4748 if (errno < sys_nerr)
4749 s = concat ("%s: ", my_strerror( errno ));
4751 s = "cannot open %s";
4761 if (errno < sys_nerr)
4762 s = concat ("installation problem, cannot exec %s: ", my_strerror( errno ));
4764 s = "installation problem, cannot exec %s";
4768 /* More 'friendly' abort that prints the line and file.
4769 config.h can #define abort fancy_abort if you like that sort of thing. */
4774 fatal ("Internal gcc abort.");
4779 /* Output an error message and exit */
4782 fatal VPROTO((char *format, ...))
4789 VA_START (ap, format);
4792 format = va_arg (ap, char*);
4795 fprintf (stderr, "%s: ", programname);
4796 vfprintf (stderr, format, ap);
4798 fprintf (stderr, "\n");
4799 delete_temp_files ();
4804 error VPROTO((char *format, ...))
4811 VA_START (ap, format);
4814 format = va_arg (ap, char*);
4817 fprintf (stderr, "%s: ", programname);
4818 vfprintf (stderr, format, ap);
4821 fprintf (stderr, "\n");
4824 #else /* not HAVE_VPRINTF */
4827 fatal (msg, arg1, arg2)
4828 char *msg, *arg1, *arg2;
4830 error (msg, arg1, arg2);
4831 delete_temp_files ();
4836 error (msg, arg1, arg2)
4837 char *msg, *arg1, *arg2;
4839 fprintf (stderr, "%s: ", programname);
4840 fprintf (stderr, msg, arg1, arg2);
4841 fprintf (stderr, "\n");
4844 #endif /* not HAVE_VPRINTF */
4848 validate_all_switches ()
4850 struct compiler *comp;
4853 struct spec_list *spec;
4855 for (comp = compilers; comp->spec[0]; comp++)
4858 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4862 if (c == '%' && *p == '{')
4863 /* We have a switch spec. */
4864 validate_switches (p + 1);
4868 /* look through the linked list of extra specs read from the specs file */
4869 for (spec = specs; spec ; spec = spec->next)
4873 if (c == '%' && *p == '{')
4874 /* We have a switch spec. */
4875 validate_switches (p + 1);
4878 p = link_command_spec;
4880 if (c == '%' && *p == '{')
4881 /* We have a switch spec. */
4882 validate_switches (p + 1);
4884 /* Now notice switches mentioned in the machine-specific specs. */
4888 if (c == '%' && *p == '{')
4889 /* We have a switch spec. */
4890 validate_switches (p + 1);
4894 if (c == '%' && *p == '{')
4895 /* We have a switch spec. */
4896 validate_switches (p + 1);
4900 if (c == '%' && *p == '{')
4901 /* We have a switch spec. */
4902 validate_switches (p + 1);
4904 p = signed_char_spec;
4906 if (c == '%' && *p == '{')
4907 /* We have a switch spec. */
4908 validate_switches (p + 1);
4912 if (c == '%' && *p == '{')
4913 /* We have a switch spec. */
4914 validate_switches (p + 1);
4918 if (c == '%' && *p == '{')
4919 /* We have a switch spec. */
4920 validate_switches (p + 1);
4924 if (c == '%' && *p == '{')
4925 /* We have a switch spec. */
4926 validate_switches (p + 1);
4930 if (c == '%' && *p == '{')
4931 /* We have a switch spec. */
4932 validate_switches (p + 1);
4936 if (c == '%' && *p == '{')
4937 /* We have a switch spec. */
4938 validate_switches (p + 1);
4942 if (c == '%' && *p == '{')
4943 /* We have a switch spec. */
4944 validate_switches (p + 1);
4947 /* Look at the switch-name that comes after START
4948 and mark as valid all supplied switches that match it. */
4951 validate_switches (start)
4954 register char *p = start;
4969 while (*p != ':' && *p != '}') p++;
4973 else if (p[-1] == '*')
4975 /* Mark all matching switches as valid. */
4977 for (i = 0; i < n_switches; i++)
4978 if (!strncmp (switches[i].part1, filter, p - filter))
4979 switches[i].valid = 1;
4983 /* Mark an exact matching switch as valid. */
4984 for (i = 0; i < n_switches; i++)
4986 if (!strncmp (switches[i].part1, filter, p - filter)
4987 && switches[i].part1[p - filter] == 0)
4988 switches[i].valid = 1;
4993 /* Check whether a particular argument was used. */
5002 for (i = 0; i < n_switches; i++)
5003 if (! strncmp (switches[i].part1, p, len)
5004 && strlen (switches[i].part1) == len)
5009 /* Work out the subdirectory to use based on the
5010 options. The format of multilib_select is a list of elements.
5011 Each element is a subdirectory name followed by a list of options
5012 followed by a semicolon. gcc will consider each line in turn. If
5013 none of the options beginning with an exclamation point are
5014 present, and all of the other options are present, that
5015 subdirectory will be used. */
5020 char *p = multilib_select;
5022 char *this_path, *this_arg;
5027 /* Ignore newlines. */
5034 /* Get the initial path. */
5042 this_path_len = p - this_path;
5044 /* Check the arguments. */
5059 while (*p != ' ' && *p != ';')
5066 if (*this_arg == '!')
5067 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5069 failed = ! used_arg (this_arg, p - this_arg);
5077 if (this_path_len != 1
5078 || this_path[0] != '.')
5080 multilib_dir = xmalloc (this_path_len + 1);
5081 strncpy (multilib_dir, this_path, this_path_len);
5082 multilib_dir[this_path_len] = '\0';
5091 /* Print out the multiple library subdirectory selection
5092 information. This prints out a series of lines. Each line looks
5093 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5094 required. Only the desired options are printed out, the negative
5095 matches. The options are print without a leading dash. There are
5096 no spaces to make it easy to use the information in the shell.
5097 Each subdirectory is printed only once. This assumes the ordering
5098 generated by the genmultilib script. */
5101 print_multilib_info ()
5103 char *p = multilib_select;
5104 char *last_path = 0, *this_path;
5106 int last_path_len = 0;
5110 /* Ignore newlines. */
5117 /* Get the initial path. */
5126 /* If this is a duplicate, skip it. */
5127 skip = (last_path != 0 && p - this_path == last_path_len
5128 && ! strncmp (last_path, this_path, last_path_len));
5130 last_path = this_path;
5131 last_path_len = p - this_path;
5137 for (p1 = last_path; p1 < p; p1++)
5156 use_arg = *p != '!';
5161 while (*p != ' ' && *p != ';')