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(WINNT)
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 WINNT */
2107 #if defined(OS2) || defined(WINNT)
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;
2146 return (const char* const*) argvec;
2149 #define FIX_ARGV(a) fix_argv(a)
2153 #define FIX_ARGV(a) a
2158 pexecute (search_flag, program, argv, not_last)
2164 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2166 #endif /* OS2 or WINNT */
2169 /* Execute the command specified by the arguments on the current line of spec.
2170 When using pipes, this includes several piped-together commands
2171 with `|' between them.
2173 Return 0 if successful, -1 if failed. */
2179 int n_commands; /* # of command. */
2183 char *prog; /* program name. */
2184 char **argv; /* vector of args. */
2185 int pid; /* pid of process for this command. */
2188 struct command *commands; /* each command buffer with above info. */
2190 /* Count # of piped commands. */
2191 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2192 if (strcmp (argbuf[i], "|") == 0)
2195 /* Get storage for each command. */
2197 = (struct command *) alloca (n_commands * sizeof (struct command));
2199 /* Split argbuf into its separate piped processes,
2200 and record info about each one.
2201 Also search for the programs that are to be run. */
2203 commands[0].prog = argbuf[0]; /* first command. */
2204 commands[0].argv = &argbuf[0];
2205 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2207 commands[0].argv[0] = string;
2209 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2210 if (strcmp (argbuf[i], "|") == 0)
2211 { /* each command. */
2213 fatal ("-pipe not supported under MS-DOS");
2215 argbuf[i] = 0; /* termination of command args. */
2216 commands[n_commands].prog = argbuf[i + 1];
2217 commands[n_commands].argv = &argbuf[i + 1];
2218 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2220 commands[n_commands].argv[0] = string;
2224 argbuf[argbuf_index] = 0;
2226 /* If -v, print what we are about to do, and maybe query. */
2230 /* Print each piped command as a separate line. */
2231 for (i = 0; i < n_commands ; i++)
2235 for (j = commands[i].argv; *j; j++)
2236 fprintf (stderr, " %s", *j);
2238 /* Print a pipe symbol after all but the last command. */
2239 if (i + 1 != n_commands)
2240 fprintf (stderr, " |");
2241 fprintf (stderr, "\n");
2245 fprintf (stderr, "\nGo ahead? (y or n) ");
2249 while (getchar () != '\n') ;
2250 if (i != 'y' && i != 'Y')
2255 /* Run each piped subprocess. */
2257 last_pipe_input = STDIN_FILE_NO;
2258 for (i = 0; i < n_commands; i++)
2260 char *string = commands[i].argv[0];
2262 commands[i].pid = pexecute (string != commands[i].prog,
2263 string, commands[i].argv,
2264 i + 1 < n_commands);
2266 if (string != commands[i].prog)
2272 /* Wait for all the subprocesses to finish.
2273 We don't care what order they finish in;
2274 we know that N_COMMANDS waits will get them all.
2275 Ignore subprocesses that we don't know about,
2276 since they can be spawned by the process that exec'ed us. */
2281 for (i = 0; i < n_commands; )
2288 status = pid = commands[i].pid;
2291 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2293 pid = wait (&status);
2299 for (j = 0; j < n_commands; j++)
2300 if (commands[j].pid == pid)
2305 if (WIFSIGNALED (status))
2307 fatal ("Internal compiler error: program %s got fatal signal %d",
2308 commands[j].prog, WTERMSIG (status));
2312 else if (WIFEXITED (status)
2313 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2323 /* Find all the switches given to us
2324 and make a vector describing them.
2325 The elements of the vector are strings, one per switch given.
2326 If a switch uses following arguments, then the `part1' field
2327 is the switch itself and the `args' field
2328 is a null-terminated vector containing the following arguments.
2329 The `live_cond' field is 1 if the switch is true in a conditional spec,
2330 -1 if false (overridden by a later switch), and is initialized to zero.
2331 The `valid' field is nonzero if any spec has looked at this switch;
2332 if it remains zero at the end of the run, it must be meaningless. */
2342 static struct switchstr *switches;
2344 static int n_switches;
2352 /* Also a vector of input files specified. */
2354 static struct infile *infiles;
2356 static int n_infiles;
2358 /* And a vector of corresponding output files is made up later. */
2360 static char **outfiles;
2362 /* Create the vector `switches' and its contents.
2363 Store its length in `n_switches'. */
2366 process_command (argc, argv)
2372 char *spec_lang = 0;
2373 int last_language_n_infiles;
2375 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2380 /* Figure compiler version from version string. */
2382 compiler_version = save_string (version_string, strlen (version_string));
2383 for (temp = compiler_version; *temp; ++temp)
2392 /* Set up the default search paths. */
2394 if (gcc_exec_prefix)
2396 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2397 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2400 /* COMPILER_PATH and LIBRARY_PATH have values
2401 that are lists of directory names with colons. */
2403 temp = getenv ("COMPILER_PATH");
2406 char *startp, *endp;
2407 char *nstore = (char *) alloca (strlen (temp) + 3);
2409 startp = endp = temp;
2412 if (*endp == PATH_SEPARATOR || *endp == 0)
2414 strncpy (nstore, startp, endp-startp);
2416 strcpy (nstore, concat (".", dir_separator_str));
2417 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2419 nstore[endp-startp] = DIR_SEPARATOR;
2420 nstore[endp-startp+1] = 0;
2423 nstore[endp-startp] = 0;
2424 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2427 endp = startp = endp + 1;
2434 temp = getenv ("LIBRARY_PATH");
2435 if (temp && ! cross_compile)
2437 char *startp, *endp;
2438 char *nstore = (char *) alloca (strlen (temp) + 3);
2440 startp = endp = temp;
2443 if (*endp == PATH_SEPARATOR || *endp == 0)
2445 strncpy (nstore, startp, endp-startp);
2447 strcpy (nstore, concat (".", dir_separator_str));
2448 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2450 nstore[endp-startp] = DIR_SEPARATOR;
2451 nstore[endp-startp+1] = 0;
2454 nstore[endp-startp] = 0;
2455 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2458 endp = startp = endp + 1;
2465 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2466 temp = getenv ("LPATH");
2467 if (temp && ! cross_compile)
2469 char *startp, *endp;
2470 char *nstore = (char *) alloca (strlen (temp) + 3);
2472 startp = endp = temp;
2475 if (*endp == PATH_SEPARATOR || *endp == 0)
2477 strncpy (nstore, startp, endp-startp);
2479 strcpy (nstore, concat (".", dir_separator_str));
2480 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2482 nstore[endp-startp] = DIR_SEPARATOR;
2483 nstore[endp-startp+1] = 0;
2486 nstore[endp-startp] = 0;
2487 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2490 endp = startp = endp + 1;
2497 /* Convert new-style -- options to old-style. */
2498 translate_options (&argc, &argv);
2500 /* Scan argv twice. Here, the first time, just count how many switches
2501 there will be in their vector, and how many input files in theirs.
2502 Here we also parse the switches that cc itself uses (e.g. -v). */
2504 for (i = 1; i < argc; i++)
2506 if (! strcmp (argv[i], "-dumpspecs"))
2508 printf ("*asm:\n%s\n\n", asm_spec);
2509 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2510 printf ("*cpp:\n%s\n\n", cpp_spec);
2511 printf ("*cc1:\n%s\n\n", cc1_spec);
2512 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2513 printf ("*endfile:\n%s\n\n", endfile_spec);
2514 printf ("*link:\n%s\n\n", link_spec);
2515 printf ("*lib:\n%s\n\n", lib_spec);
2516 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2517 printf ("*startfile:\n%s\n\n", startfile_spec);
2518 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2519 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2520 printf ("*predefines:\n%s\n\n", cpp_predefines);
2521 printf ("*cross_compile:\n%d\n\n", cross_compile);
2522 printf ("*multilib:\n%s\n\n", multilib_select);
2526 else if (! strcmp (argv[i], "-dumpversion"))
2528 printf ("%s\n", version_string);
2531 else if (! strcmp (argv[i], "-dumpmachine"))
2533 printf ("%s\n", spec_machine);
2536 else if (! strcmp (argv[i], "-print-search-dirs"))
2537 print_search_dirs = 1;
2538 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2539 print_file_name = "libgcc.a";
2540 else if (! strncmp (argv[i], "-print-file-name=", 17))
2541 print_file_name = argv[i] + 17;
2542 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2543 print_prog_name = argv[i] + 17;
2544 else if (! strcmp (argv[i], "-print-multi-lib"))
2545 print_multi_lib = 1;
2546 else if (! strcmp (argv[i], "-print-multi-directory"))
2547 print_multi_directory = 1;
2548 else if (! strncmp (argv[i], "-Wa,", 4))
2551 /* Pass the rest of this option to the assembler. */
2553 n_assembler_options++;
2554 if (!assembler_options)
2556 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2559 = (char **) xrealloc (assembler_options,
2560 n_assembler_options * sizeof (char **));
2562 /* Split the argument at commas. */
2564 for (j = 4; argv[i][j]; j++)
2565 if (argv[i][j] == ',')
2567 assembler_options[n_assembler_options - 1]
2568 = save_string (argv[i] + prev, j - prev);
2569 n_assembler_options++;
2571 = (char **) xrealloc (assembler_options,
2572 n_assembler_options * sizeof (char **));
2575 /* Record the part after the last comma. */
2576 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2578 else if (! strncmp (argv[i], "-Wp,", 4))
2581 /* Pass the rest of this option to the preprocessor. */
2583 n_preprocessor_options++;
2584 if (!preprocessor_options)
2585 preprocessor_options
2586 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2588 preprocessor_options
2589 = (char **) xrealloc (preprocessor_options,
2590 n_preprocessor_options * sizeof (char **));
2592 /* Split the argument at commas. */
2594 for (j = 4; argv[i][j]; j++)
2595 if (argv[i][j] == ',')
2597 preprocessor_options[n_preprocessor_options - 1]
2598 = save_string (argv[i] + prev, j - prev);
2599 n_preprocessor_options++;
2600 preprocessor_options
2601 = (char **) xrealloc (preprocessor_options,
2602 n_preprocessor_options * sizeof (char **));
2605 /* Record the part after the last comma. */
2606 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2608 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2609 /* The +e options to the C++ front-end. */
2611 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2614 /* Split the argument at commas. */
2615 for (j = 3; argv[i][j]; j++)
2616 n_infiles += (argv[i][j] == ',');
2618 else if (strcmp (argv[i], "-Xlinker") == 0)
2621 fatal ("argument to `-Xlinker' is missing");
2626 else if (strncmp (argv[i], "-l", 2) == 0)
2628 else if (argv[i][0] == '-' && argv[i][1] != 0)
2630 register char *p = &argv[i][1];
2631 register int c = *p;
2636 if (p[1] == 0 && i + 1 == argc)
2637 fatal ("argument to `-b' is missing");
2639 spec_machine = argv[++i];
2641 spec_machine = p + 1;
2646 int *temp = (int *) xmalloc (sizeof (int));
2648 if (p[1] == 0 && i + 1 == argc)
2649 fatal ("argument to `-B' is missing");
2654 add_prefix (&exec_prefixes, value, 1, 0, temp);
2655 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2656 add_prefix (&include_prefixes, concat (value, "include"),
2659 /* As a kludge, if the arg is "[foo/]stageN/", just add
2660 "[foo/]include" to the include prefix. */
2662 int len = strlen (value);
2665 && (value[len - 8] == '/'
2666 || value[len - 8] == DIR_SEPARATOR)))
2667 && strncmp (value + len - 7, "stage", 5) == 0
2668 && isdigit (value[len - 2])
2669 && (value[len - 1] == '/'
2670 || value[len - 1] == DIR_SEPARATOR))
2673 add_prefix (&include_prefixes, "include", 1, 0, 0);
2676 char *string = xmalloc (len + 1);
2677 strncpy (string, value, len-7);
2678 strcat (string, "include");
2679 add_prefix (&include_prefixes, string, 1, 0, 0);
2686 case 'v': /* Print our subcommands and print versions. */
2688 /* If they do anything other than exactly `-v', don't set
2689 verbose_flag; rather, continue on to give the error. */
2696 if (p[1] == 0 && i + 1 == argc)
2697 fatal ("argument to `-V' is missing");
2699 spec_version = argv[++i];
2701 spec_version = p + 1;
2702 compiler_version = spec_version;
2706 if (!strcmp (p, "save-temps"))
2708 save_temps_flag = 1;
2715 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2716 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2717 else if (WORD_SWITCH_TAKES_ARG (p))
2718 i += WORD_SWITCH_TAKES_ARG (p);
2725 /* Set up the search paths before we go looking for config files. */
2727 /* These come before the md prefixes so that we will find gcc's subcommands
2728 (such as cpp) rather than those of the host system. */
2729 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2730 as well as trying the machine and the version. */
2732 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2733 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2736 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2737 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2739 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2742 /* If tooldir is relative, base it on exec_prefixes. A relative
2743 tooldir lets us move the installed tree as a unit.
2745 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2746 directories, so that we can search both the user specified directory
2747 and the standard place. */
2749 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2751 if (gcc_exec_prefix)
2753 char *gcc_exec_tooldir_prefix
2754 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2755 spec_version, dir_separator_str, tooldir_prefix);
2757 add_prefix (&exec_prefixes,
2758 concat3 (gcc_exec_tooldir_prefix, "bin",
2761 add_prefix (&startfile_prefixes,
2762 concat3 (gcc_exec_tooldir_prefix, "lib",
2767 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2768 dir_separator_str, spec_version,
2769 dir_separator_str, tooldir_prefix);
2772 add_prefix (&exec_prefixes,
2773 concat3 (tooldir_prefix, "bin", dir_separator_str),
2775 add_prefix (&startfile_prefixes,
2776 concat3 (tooldir_prefix, "lib", dir_separator_str),
2779 /* More prefixes are enabled in main, after we read the specs file
2780 and determine whether this is cross-compilation or not. */
2783 /* Then create the space for the vectors and scan again. */
2785 switches = ((struct switchstr *)
2786 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2787 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2790 last_language_n_infiles = -1;
2792 /* This, time, copy the text of each switch and store a pointer
2793 to the copy in the vector of switches.
2794 Store all the infiles in their vector. */
2796 for (i = 1; i < argc; i++)
2798 /* Just skip the switches that were handled by the preceding loop. */
2799 if (! strncmp (argv[i], "-Wa,", 4))
2801 else if (! strncmp (argv[i], "-Wp,", 4))
2803 else if (! strcmp (argv[i], "-print-search-dirs"))
2805 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2807 else if (! strncmp (argv[i], "-print-file-name=", 17))
2809 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2811 else if (! strcmp (argv[i], "-print-multi-lib"))
2813 else if (! strcmp (argv[i], "-print-multi-directory"))
2815 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2817 /* Compensate for the +e options to the C++ front-end;
2818 they're there simply for cfront call-compatibility. We do
2819 some magic in default_compilers to pass them down properly.
2820 Note we deliberately start at the `+' here, to avoid passing
2821 -e0 or -e1 down into the linker. */
2822 switches[n_switches].part1 = &argv[i][0];
2823 switches[n_switches].args = 0;
2824 switches[n_switches].live_cond = 0;
2825 switches[n_switches].valid = 0;
2828 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2831 /* Split the argument at commas. */
2833 for (j = 4; argv[i][j]; j++)
2834 if (argv[i][j] == ',')
2836 infiles[n_infiles].language = 0;
2837 infiles[n_infiles++].name
2838 = save_string (argv[i] + prev, j - prev);
2841 /* Record the part after the last comma. */
2842 infiles[n_infiles].language = 0;
2843 infiles[n_infiles++].name = argv[i] + prev;
2845 else if (strcmp (argv[i], "-Xlinker") == 0)
2847 infiles[n_infiles].language = 0;
2848 infiles[n_infiles++].name = argv[++i];
2850 else if (strncmp (argv[i], "-l", 2) == 0)
2852 infiles[n_infiles].language = 0;
2853 infiles[n_infiles++].name = argv[i];
2855 else if (argv[i][0] == '-' && argv[i][1] != 0)
2857 register char *p = &argv[i][1];
2858 register int c = *p;
2860 if (c == 'B' || c == 'b' || c == 'V')
2862 /* Skip a separate arg, if any. */
2869 if (p[1] == 0 && i + 1 == argc)
2870 fatal ("argument to `-x' is missing");
2872 spec_lang = argv[++i];
2875 if (! strcmp (spec_lang, "none"))
2876 /* Suppress the warning if -xnone comes after the last input
2877 file, because alternate command interfaces like g++ might
2878 find it useful to place -xnone after each input file. */
2881 last_language_n_infiles = n_infiles;
2884 switches[n_switches].part1 = p;
2885 /* Deal with option arguments in separate argv elements. */
2886 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2887 || WORD_SWITCH_TAKES_ARG (p))
2890 int n_args = WORD_SWITCH_TAKES_ARG (p);
2894 /* Count only the option arguments in separate argv elements. */
2895 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2897 if (i + n_args >= argc)
2898 fatal ("argument to `-%s' is missing", p);
2899 switches[n_switches].args
2900 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2902 switches[n_switches].args[j++] = argv[++i];
2903 /* Null-terminate the vector. */
2904 switches[n_switches].args[j] = 0;
2906 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2908 /* On some systems, ld cannot handle -o or -L without space.
2909 So split the -o or -L from its argument. */
2910 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2911 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2912 switches[n_switches].args[0] = xmalloc (strlen (p));
2913 strcpy (switches[n_switches].args[0], &p[1]);
2914 switches[n_switches].args[1] = 0;
2917 switches[n_switches].args = 0;
2919 switches[n_switches].live_cond = 0;
2920 switches[n_switches].valid = 0;
2921 /* This is always valid, since gcc.c itself understands it. */
2922 if (!strcmp (p, "save-temps"))
2923 switches[n_switches].valid = 1;
2928 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2930 perror_with_name (argv[i]);
2935 infiles[n_infiles].language = spec_lang;
2936 infiles[n_infiles++].name = argv[i];
2941 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2942 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2944 switches[n_switches].part1 = 0;
2945 infiles[n_infiles].name = 0;
2948 /* Process a spec string, accumulating and running commands. */
2950 /* These variables describe the input file name.
2951 input_file_number is the index on outfiles of this file,
2952 so that the output file name can be stored for later use by %o.
2953 input_basename is the start of the part of the input file
2954 sans all directory names, and basename_length is the number
2955 of characters starting there excluding the suffix .c or whatever. */
2957 static char *input_filename;
2958 static int input_file_number;
2959 static int input_filename_length;
2960 static int basename_length;
2961 static char *input_basename;
2962 static char *input_suffix;
2964 /* These are variables used within do_spec and do_spec_1. */
2966 /* Nonzero if an arg has been started and not yet terminated
2967 (with space, tab or newline). */
2968 static int arg_going;
2970 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2971 is a temporary file name. */
2972 static int delete_this_arg;
2974 /* Nonzero means %w has been seen; the next arg to be terminated
2975 is the output file name of this compilation. */
2976 static int this_is_output_file;
2978 /* Nonzero means %s has been seen; the next arg to be terminated
2979 is the name of a library file and we should try the standard
2980 search dirs for it. */
2981 static int this_is_library_file;
2983 /* Nonzero means that the input of this command is coming from a pipe. */
2984 static int input_from_pipe;
2986 /* Process the spec SPEC and run the commands specified therein.
2987 Returns 0 if the spec is successfully processed; -1 if failed. */
2997 delete_this_arg = 0;
2998 this_is_output_file = 0;
2999 this_is_library_file = 0;
3000 input_from_pipe = 0;
3002 value = do_spec_1 (spec, 0, NULL_PTR);
3004 /* Force out any unfinished command.
3005 If -pipe, this forces out the last command if it ended in `|'. */
3008 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3011 if (argbuf_index > 0)
3018 /* Process the sub-spec SPEC as a portion of a larger spec.
3019 This is like processing a whole spec except that we do
3020 not initialize at the beginning and we do not supply a
3021 newline by default at the end.
3022 INSWITCH nonzero means don't process %-sequences in SPEC;
3023 in this case, % is treated as an ordinary character.
3024 This is used while substituting switches.
3025 INSWITCH nonzero also causes SPC not to terminate an argument.
3027 Value is zero unless a line was finished
3028 and the command on that line reported an error. */
3031 do_spec_1 (spec, inswitch, soft_matched_part)
3034 char *soft_matched_part;
3036 register char *p = spec;
3043 /* If substituting a switch, treat all chars like letters.
3044 Otherwise, NL, SPC, TAB and % are special. */
3045 switch (inswitch ? 'a' : c)
3048 /* End of line: finish any pending argument,
3049 then run the pending command if one has been started. */
3052 obstack_1grow (&obstack, 0);
3053 string = obstack_finish (&obstack);
3054 if (this_is_library_file)
3055 string = find_file (string);
3056 store_arg (string, delete_this_arg, this_is_output_file);
3057 if (this_is_output_file)
3058 outfiles[input_file_number] = string;
3062 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3065 for (i = 0; i < n_switches; i++)
3066 if (!strcmp (switches[i].part1, "pipe"))
3069 /* A `|' before the newline means use a pipe here,
3070 but only if -pipe was specified.
3071 Otherwise, execute now and don't pass the `|' as an arg. */
3074 input_from_pipe = 1;
3075 switches[i].valid = 1;
3082 if (argbuf_index > 0)
3088 /* Reinitialize for a new command, and for a new argument. */
3091 delete_this_arg = 0;
3092 this_is_output_file = 0;
3093 this_is_library_file = 0;
3094 input_from_pipe = 0;
3098 /* End any pending argument. */
3101 obstack_1grow (&obstack, 0);
3102 string = obstack_finish (&obstack);
3103 if (this_is_library_file)
3104 string = find_file (string);
3105 store_arg (string, delete_this_arg, this_is_output_file);
3106 if (this_is_output_file)
3107 outfiles[input_file_number] = string;
3111 obstack_1grow (&obstack, c);
3117 /* Space or tab ends an argument if one is pending. */
3120 obstack_1grow (&obstack, 0);
3121 string = obstack_finish (&obstack);
3122 if (this_is_library_file)
3123 string = find_file (string);
3124 store_arg (string, delete_this_arg, this_is_output_file);
3125 if (this_is_output_file)
3126 outfiles[input_file_number] = string;
3128 /* Reinitialize for a new argument. */
3130 delete_this_arg = 0;
3131 this_is_output_file = 0;
3132 this_is_library_file = 0;
3139 fatal ("Invalid specification! Bug in cc.");
3142 obstack_grow (&obstack, input_basename, basename_length);
3147 delete_this_arg = 2;
3150 /* Dump out the directories specified with LIBRARY_PATH,
3151 followed by the absolute directories
3152 that we search for startfiles. */
3155 struct prefix_list *pl = startfile_prefixes.plist;
3157 char *buffer = (char *) xmalloc (bufsize);
3160 for (; pl; pl = pl->next)
3162 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3163 /* Used on systems which record the specified -L dirs
3164 and use them to search for dynamic linking. */
3165 /* Relative directories always come from -B,
3166 and it is better not to use them for searching
3167 at run time. In particular, stage1 loses */
3168 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3171 /* Try subdirectory if there is one. */
3172 if (multilib_dir != NULL)
3176 if (strlen (pl->prefix) + strlen (machine_suffix)
3178 bufsize = (strlen (pl->prefix)
3179 + strlen (machine_suffix)) * 2 + 1;
3180 buffer = (char *) xrealloc (buffer, bufsize);
3181 strcpy (buffer, pl->prefix);
3182 strcat (buffer, machine_suffix);
3183 if (is_directory (buffer, multilib_dir, 1))
3185 do_spec_1 ("-L", 0, NULL_PTR);
3186 #ifdef SPACE_AFTER_L_OPTION
3187 do_spec_1 (" ", 0, NULL_PTR);
3189 do_spec_1 (buffer, 1, NULL_PTR);
3190 do_spec_1 (multilib_dir, 1, NULL_PTR);
3191 /* Make this a separate argument. */
3192 do_spec_1 (" ", 0, NULL_PTR);
3195 if (!pl->require_machine_suffix)
3197 if (is_directory (pl->prefix, multilib_dir, 1))
3199 do_spec_1 ("-L", 0, NULL_PTR);
3200 #ifdef SPACE_AFTER_L_OPTION
3201 do_spec_1 (" ", 0, NULL_PTR);
3203 do_spec_1 (pl->prefix, 1, NULL_PTR);
3204 do_spec_1 (multilib_dir, 1, NULL_PTR);
3205 /* Make this a separate argument. */
3206 do_spec_1 (" ", 0, NULL_PTR);
3212 if (is_directory (pl->prefix, machine_suffix, 1))
3214 do_spec_1 ("-L", 0, NULL_PTR);
3215 #ifdef SPACE_AFTER_L_OPTION
3216 do_spec_1 (" ", 0, NULL_PTR);
3218 do_spec_1 (pl->prefix, 1, NULL_PTR);
3219 /* Remove slash from machine_suffix. */
3220 if (strlen (machine_suffix) >= bufsize)
3221 bufsize = strlen (machine_suffix) * 2 + 1;
3222 buffer = (char *) xrealloc (buffer, bufsize);
3223 strcpy (buffer, machine_suffix);
3224 idx = strlen (buffer);
3225 if (buffer[idx - 1] == '/'
3226 || buffer[idx - 1] == DIR_SEPARATOR)
3227 buffer[idx - 1] = 0;
3228 do_spec_1 (buffer, 1, NULL_PTR);
3229 /* Make this a separate argument. */
3230 do_spec_1 (" ", 0, NULL_PTR);
3233 if (!pl->require_machine_suffix)
3235 if (is_directory (pl->prefix, "", 1))
3237 do_spec_1 ("-L", 0, NULL_PTR);
3238 #ifdef SPACE_AFTER_L_OPTION
3239 do_spec_1 (" ", 0, NULL_PTR);
3241 /* Remove slash from pl->prefix. */
3242 if (strlen (pl->prefix) >= bufsize)
3243 bufsize = strlen (pl->prefix) * 2 + 1;
3244 buffer = (char *) xrealloc (buffer, bufsize);
3245 strcpy (buffer, pl->prefix);
3246 idx = strlen (buffer);
3247 if (buffer[idx - 1] == '/'
3248 || buffer[idx - 1] == DIR_SEPARATOR)
3249 buffer[idx - 1] = 0;
3250 do_spec_1 (buffer, 1, NULL_PTR);
3251 /* Make this a separate argument. */
3252 do_spec_1 (" ", 0, NULL_PTR);
3261 /* {...:%efoo} means report an error with `foo' as error message
3262 and don't execute any more commands for this file. */
3266 while (*p != 0 && *p != '\n') p++;
3267 buf = (char *) alloca (p - q + 1);
3268 strncpy (buf, q, p - q);
3278 if (save_temps_flag)
3280 obstack_grow (&obstack, input_basename, basename_length);
3281 delete_this_arg = 0;
3285 #ifdef MKTEMP_EACH_FILE
3286 /* ??? This has a problem: the total number of
3287 values mktemp can return is limited.
3288 That matters for the names of object files.
3289 In 2.4, do something about that. */
3290 struct temp_name *t;
3292 while (*p == '.' || isalpha (*p))
3295 /* See if we already have an association of %g/%u/%U and
3297 for (t = temp_names; t; t = t->next)
3298 if (t->length == p - suffix
3299 && strncmp (t->suffix, suffix, p - suffix) == 0
3300 && t->unique == (c != 'g'))
3303 /* Make a new association if needed. %u requires one. */
3304 if (t == 0 || c == 'u')
3308 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3309 t->next = temp_names;
3312 t->length = p - suffix;
3313 t->suffix = save_string (suffix, p - suffix);
3314 t->unique = (c != 'g');
3315 choose_temp_base ();
3316 t->filename = temp_filename;
3317 t->filename_length = temp_filename_length;
3320 obstack_grow (&obstack, t->filename, t->filename_length);
3321 delete_this_arg = 1;
3323 obstack_grow (&obstack, temp_filename, temp_filename_length);
3324 if (c == 'u' || c == 'U')
3330 sprintf (buff, "%d", unique);
3331 obstack_grow (&obstack, buff, strlen (buff));
3334 delete_this_arg = 1;
3340 obstack_grow (&obstack, input_filename, input_filename_length);
3346 struct prefix_list *pl = include_prefixes.plist;
3348 if (gcc_exec_prefix)
3350 do_spec_1 ("-iprefix", 1, NULL_PTR);
3351 /* Make this a separate argument. */
3352 do_spec_1 (" ", 0, NULL_PTR);
3353 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3354 do_spec_1 (" ", 0, NULL_PTR);
3357 for (; pl; pl = pl->next)
3359 do_spec_1 ("-isystem", 1, NULL_PTR);
3360 /* Make this a separate argument. */
3361 do_spec_1 (" ", 0, NULL_PTR);
3362 do_spec_1 (pl->prefix, 1, NULL_PTR);
3363 do_spec_1 (" ", 0, NULL_PTR);
3371 for (f = 0; f < n_infiles; f++)
3372 store_arg (outfiles[f], 0, 0);
3377 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3382 this_is_library_file = 1;
3386 this_is_output_file = 1;
3391 int index = argbuf_index;
3392 /* Handle the {...} following the %W. */
3395 p = handle_braces (p + 1);
3398 /* If any args were output, mark the last one for deletion
3400 if (argbuf_index != index)
3401 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3405 /* %x{OPTION} records OPTION for %X to output. */
3411 /* Skip past the option value and make a copy. */
3416 string = save_string (p1 + 1, p - p1 - 2);
3418 /* See if we already recorded this option. */
3419 for (i = 0; i < n_linker_options; i++)
3420 if (! strcmp (string, linker_options[i]))
3426 /* This option is new; add it. */
3428 if (!linker_options)
3430 = (char **) xmalloc (n_linker_options * sizeof (char **));
3433 = (char **) xrealloc (linker_options,
3434 n_linker_options * sizeof (char **));
3436 linker_options[n_linker_options - 1] = string;
3440 /* Dump out the options accumulated previously using %x. */
3442 for (i = 0; i < n_linker_options; i++)
3444 do_spec_1 (linker_options[i], 1, NULL_PTR);
3445 /* Make each accumulated option a separate argument. */
3446 do_spec_1 (" ", 0, NULL_PTR);
3450 /* Dump out the options accumulated previously using -Wa,. */
3452 for (i = 0; i < n_assembler_options; i++)
3454 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3455 /* Make each accumulated option a separate argument. */
3456 do_spec_1 (" ", 0, NULL_PTR);
3460 /* Dump out the options accumulated previously using -Wp,. */
3462 for (i = 0; i < n_preprocessor_options; i++)
3464 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3465 /* Make each accumulated option a separate argument. */
3466 do_spec_1 (" ", 0, NULL_PTR);
3470 /* Here are digits and numbers that just process
3471 a certain constant string as a spec. */
3474 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3480 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3486 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3492 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3498 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3504 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3510 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3516 value = do_spec_1 (link_spec, 0, NULL_PTR);
3522 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3528 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3535 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3539 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3543 if (! strncmp (y, "-D", 2))
3544 /* Copy the whole option. */
3545 while (*y && *y != ' ' && *y != '\t')
3547 else if (*y == ' ' || *y == '\t')
3548 /* Copy whitespace to the result. */
3550 /* Don't copy other options. */
3557 value = do_spec_1 (buf, 0, NULL_PTR);
3565 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3569 /* Copy all of CPP_PREDEFINES into BUF,
3570 but put __ after every -D and at the end of each arg. */
3574 if (! strncmp (y, "-D", 2))
3582 || (*(y+1) != '_' && ! isupper (*(y+1))))
3584 /* Stick __ at front of macro name. */
3587 /* Arrange to stick __ at the end as well. */
3591 /* Copy the macro name. */
3592 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3601 /* Copy the value given, if any. */
3602 while (*y && *y != ' ' && *y != '\t')
3605 else if (*y == ' ' || *y == '\t')
3606 /* Copy whitespace to the result. */
3608 /* Don't copy -A options */
3614 /* Copy all of CPP_PREDEFINES into BUF,
3615 but put __ after every -D. */
3619 if (! strncmp (y, "-D", 2))
3624 || (*(y+1) != '_' && ! isupper (*(y+1))))
3626 /* Stick -D__ at front of macro name. */
3632 /* Copy the macro name. */
3633 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3636 /* Copy the value given, if any. */
3637 while (*y && *y != ' ' && *y != '\t')
3642 /* Do not copy this macro - we have just done it before */
3643 while (*y && *y != ' ' && *y != '\t')
3647 else if (*y == ' ' || *y == '\t')
3648 /* Copy whitespace to the result. */
3650 /* Don't copy -A options */
3656 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3660 if (! strncmp (y, "-A", 2))
3661 /* Copy the whole option. */
3662 while (*y && *y != ' ' && *y != '\t')
3664 else if (*y == ' ' || *y == '\t')
3665 /* Copy whitespace to the result. */
3667 /* Don't copy other options. */
3674 value = do_spec_1 (buf, 0, NULL_PTR);
3681 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3686 /* Here we define characters other than letters and digits. */
3689 p = handle_braces (p);
3695 obstack_1grow (&obstack, '%');
3699 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3700 do_spec_1 (" ", 0, NULL_PTR);
3703 /* Process a string found as the value of a spec given by name.
3704 This feature allows individual machine descriptions
3705 to add and use their own specs.
3706 %[...] modifies -D options the way %P does;
3707 %(...) uses the spec unmodified. */
3712 struct spec_list *sl;
3715 /* The string after the S/P is the name of a spec that is to be
3717 while (*p && *p != ')' && *p != ']')
3720 /* See if it's in the list */
3721 for (len = p - name, sl = specs; sl; sl = sl->next)
3722 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3732 value = do_spec_1 (name, 0, NULL_PTR);
3738 char *x = (char *) alloca (strlen (name) * 2 + 1);
3742 /* Copy all of NAME into BUF, but put __ after
3743 every -D and at the end of each arg, */
3746 if (! strncmp (y, "-D", 2))
3754 else if (*y == ' ' || *y == 0)
3768 value = do_spec_1 (buf, 0, NULL_PTR);
3774 /* Discard the closing paren or bracket. */
3782 int c1 = *p++; /* Select first or second version number. */
3783 char *v = compiler_version;
3785 /* If desired, advance to second version number. */
3788 /* Set P after the first period. */
3789 while (*v != 0 && *v != ' ' && *v != '.')
3794 /* Set Q at the next period or at the end. */
3796 while (*q != 0 && *q != ' ' && *q != '.')
3798 /* Empty string means zero. */
3804 /* Put that part into the command. */
3805 obstack_grow (&obstack, v, q - v);
3811 if (input_from_pipe)
3812 do_spec_1 ("-", 0, NULL_PTR);
3821 /* Backslash: treat next character as ordinary. */
3826 /* Ordinary character: put it into the current argument. */
3827 obstack_1grow (&obstack, c);
3831 return 0; /* End of string */
3834 /* Return 0 if we call do_spec_1 and that returns -1. */
3847 /* A `|' after the open-brace means,
3848 if the test fails, output a single minus sign rather than nothing.
3849 This is used in %{|!pipe:...}. */
3853 /* A `!' after the open-brace negates the condition:
3854 succeed if the specified switch is not present. */
3858 /* A `.' after the open-brace means test against the current suffix. */
3868 while (*p != ':' && *p != '}') p++;
3871 register int count = 1;
3889 int found = (input_suffix != 0
3890 && strlen (input_suffix) == p - filter
3891 && strncmp (input_suffix, filter, p - filter) == 0);
3897 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3902 else if (p[-1] == '*' && p[0] == '}')
3904 /* Substitute all matching switches as separate args. */
3907 for (i = 0; i < n_switches; i++)
3908 if (!strncmp (switches[i].part1, filter, p - filter)
3909 && check_live_switch (i, p - filter))
3914 /* Test for presence of the specified switch. */
3918 /* If name specified ends in *, as in {x*:...},
3919 check for %* and handle that case. */
3920 if (p[-1] == '*' && !negate)
3925 /* First see whether we have %*. */
3929 if (*r == '%' && r[1] == '*')
3933 /* If we do, handle that case. */
3936 /* Substitute all matching switches as separate args.
3937 But do this by substituting for %*
3938 in the text that follows the colon. */
3940 unsigned hard_match_len = p - filter - 1;
3941 char *string = save_string (p + 1, q - p - 2);
3943 for (i = 0; i < n_switches; i++)
3944 if (!strncmp (switches[i].part1, filter, hard_match_len)
3945 && check_live_switch (i, -1))
3947 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3948 /* Pass any arguments this switch has. */
3956 /* If name specified ends in *, as in {x*:...},
3957 check for presence of any switch name starting with x. */
3960 for (i = 0; i < n_switches; i++)
3962 unsigned hard_match_len = p - filter - 1;
3964 if (!strncmp (switches[i].part1, filter, hard_match_len)
3965 && check_live_switch (i, hard_match_len))
3971 /* Otherwise, check for presence of exact name specified. */
3974 for (i = 0; i < n_switches; i++)
3976 if (!strncmp (switches[i].part1, filter, p - filter)
3977 && switches[i].part1[p - filter] == 0
3978 && check_live_switch (i, -1))
3986 /* If it is as desired (present for %{s...}, absent for %{-s...})
3987 then substitute either the switch or the specified
3988 conditional text. */
3989 if (present != negate)
3997 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4003 /* Here if a %{|...} conditional fails: output a minus sign,
4004 which means "standard output" or "standard input". */
4005 do_spec_1 ("-", 0, NULL_PTR);
4012 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4013 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4014 spec, or -1 if either exact match or %* is used.
4016 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4017 whose value does not begin with "no-" is obsoleted by the same value
4018 with the "no-", similarly for a switch with the "no-" prefix. */
4021 check_live_switch (switchnum, prefix_length)
4025 char *name = switches[switchnum].part1;
4028 /* In the common case of {<at-most-one-letter>*}, a negating
4029 switch would always match, so ignore that case. We will just
4030 send the conflicting switches to the compiler phase. */
4031 if (prefix_length >= 0 && prefix_length <= 1)
4034 /* If we already processed this switch and determined if it was
4035 live or not, return our past determination. */
4036 if (switches[switchnum].live_cond != 0)
4037 return switches[switchnum].live_cond > 0;
4039 /* Now search for duplicate in a manner that depends on the name. */
4043 for (i = switchnum + 1; i < n_switches; i++)
4044 if (switches[i].part1[0] == 'O')
4046 switches[switchnum].valid = 1;
4047 switches[switchnum].live_cond = -1;
4052 case 'W': case 'f': case 'm':
4053 if (! strncmp (name + 1, "no-", 3))
4055 /* We have Xno-YYY, search for XYYY. */
4056 for (i = switchnum + 1; i < n_switches; i++)
4057 if (switches[i].part1[0] == name[0]
4058 && ! strcmp (&switches[i].part1[1], &name[4]))
4060 switches[switchnum].valid = 1;
4061 switches[switchnum].live_cond = -1;
4067 /* We have XYYY, search for Xno-YYY. */
4068 for (i = switchnum + 1; i < n_switches; i++)
4069 if (switches[i].part1[0] == name[0]
4070 && switches[i].part1[1] == 'n'
4071 && switches[i].part1[2] == 'o'
4072 && switches[i].part1[3] == '-'
4073 && !strcmp (&switches[i].part1[4], &name[1]))
4075 switches[switchnum].valid = 1;
4076 switches[switchnum].live_cond = -1;
4083 /* Otherwise the switch is live. */
4084 switches[switchnum].live_cond = 1;
4088 /* Pass a switch to the current accumulating command
4089 in the same form that we received it.
4090 SWITCHNUM identifies the switch; it is an index into
4091 the vector of switches gcc received, which is `switches'.
4092 This cannot fail since it never finishes a command line.
4094 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4097 give_switch (switchnum, omit_first_word)
4099 int omit_first_word;
4101 if (!omit_first_word)
4103 do_spec_1 ("-", 0, NULL_PTR);
4104 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4106 do_spec_1 (" ", 0, NULL_PTR);
4107 if (switches[switchnum].args != 0)
4110 for (p = switches[switchnum].args; *p; p++)
4112 do_spec_1 (*p, 1, NULL_PTR);
4113 do_spec_1 (" ", 0, NULL_PTR);
4116 switches[switchnum].valid = 1;
4119 /* Search for a file named NAME trying various prefixes including the
4120 user's -B prefix and some standard ones.
4121 Return the absolute file name found. If nothing is found, return NAME. */
4129 /* Try multilib_dir if it is defined. */
4130 if (multilib_dir != NULL)
4134 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4135 strcpy (try, multilib_dir);
4136 strcat (try, dir_separator_str);
4139 newname = find_a_file (&startfile_prefixes, try, R_OK);
4141 /* If we don't find it in the multi library dir, then fall
4142 through and look for it in the normal places. */
4143 if (newname != NULL)
4147 newname = find_a_file (&startfile_prefixes, name, R_OK);
4148 return newname ? newname : name;
4151 /* Determine whether a directory exists. If LINKER, return 0 for
4152 certain fixed names not needed by the linker. If not LINKER, it is
4153 only important to return 0 if the host machine has a small ARG_MAX
4157 is_directory (path1, path2, linker)
4162 int len1 = strlen (path1);
4163 int len2 = strlen (path2);
4164 char *path = (char *) alloca (3 + len1 + len2);
4168 #ifndef SMALL_ARG_MAX
4173 /* Construct the path from the two parts. Ensure the string ends with "/.".
4174 The resulting path will be a directory even if the given path is a
4176 bcopy (path1, path, len1);
4177 bcopy (path2, path + len1, len2);
4178 cp = path + len1 + len2;
4179 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4180 *cp++ = DIR_SEPARATOR;
4184 /* Exclude directories that the linker is known to search. */
4187 && strcmp (path, concat4 (dir_separator_str, "lib",
4188 dir_separator_str, ".")) == 0)
4190 && strcmp (path, concat6 (dir_separator_str, "usr",
4191 dir_separator_str, "lib",
4192 dir_separator_str, ".")) == 0)))
4195 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4198 /* On fatal signals, delete all the temporary files. */
4201 fatal_error (signum)
4204 signal (signum, SIG_DFL);
4205 delete_failure_queue ();
4206 delete_temp_files ();
4207 /* Get the same signal again, this time not handled,
4208 so its normal effect occurs. */
4209 kill (getpid (), signum);
4220 int linker_was_run = 0;
4221 char *explicit_link_files;
4225 p = argv[0] + strlen (argv[0]);
4226 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4229 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4230 signal (SIGINT, fatal_error);
4232 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4233 signal (SIGHUP, fatal_error);
4235 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4236 signal (SIGTERM, fatal_error);
4238 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4239 signal (SIGPIPE, fatal_error);
4243 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4245 obstack_init (&obstack);
4247 /* Set up to remember the pathname of gcc and any options
4248 needed for collect. We use argv[0] instead of programname because
4249 we need the complete pathname. */
4250 obstack_init (&collect_obstack);
4251 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4252 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4253 putenv (obstack_finish (&collect_obstack));
4255 #ifdef INIT_ENVIRONMENT
4256 /* Set up any other necessary machine specific environment variables. */
4257 putenv (INIT_ENVIRONMENT);
4260 /* Choose directory for temp files. */
4262 choose_temp_base ();
4264 /* Make a table of what switches there are (switches, n_switches).
4265 Make a table of specified input files (infiles, n_infiles).
4266 Decode switches that are handled locally. */
4268 process_command (argc, argv);
4270 /* Initialize the vector of specs to just the default.
4271 This means one element containing 0s, as a terminator. */
4273 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4274 bcopy ((char *) default_compilers, (char *) compilers,
4275 sizeof default_compilers);
4276 n_compilers = n_default_compilers;
4278 /* Read specs from a file if there is one. */
4280 machine_suffix = concat4 (spec_machine, dir_separator_str,
4281 spec_version, dir_separator_str);
4282 just_machine_suffix = concat (spec_machine, dir_separator_str);
4284 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4285 /* Read the specs file unless it is a default one. */
4286 if (specs_file != 0 && strcmp (specs_file, "specs"))
4287 read_specs (specs_file);
4289 /* If not cross-compiling, look for startfiles in the standard places. */
4290 /* The fact that these are done here, after reading the specs file,
4291 means that it cannot be found in these directories.
4292 But that's okay. It should never be there anyway. */
4295 #ifdef MD_EXEC_PREFIX
4296 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4297 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4300 #ifdef MD_STARTFILE_PREFIX
4301 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4304 #ifdef MD_STARTFILE_PREFIX_1
4305 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4308 /* If standard_startfile_prefix is relative, base it on
4309 standard_exec_prefix. This lets us move the installed tree
4310 as a unit. If GCC_EXEC_PREFIX is defined, base
4311 standard_startfile_prefix on that as well. */
4312 if (*standard_startfile_prefix == '/'
4313 || *standard_startfile_prefix == DIR_SEPARATOR)
4314 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4318 if (gcc_exec_prefix)
4319 add_prefix (&startfile_prefixes,
4320 concat (gcc_exec_prefix, standard_startfile_prefix),
4322 add_prefix (&startfile_prefixes,
4323 concat3 (standard_exec_prefix,
4325 standard_startfile_prefix),
4329 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4331 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4333 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4334 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4339 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4340 add_prefix (&startfile_prefixes,
4341 concat (gcc_exec_prefix, standard_startfile_prefix),
4345 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4346 if (gcc_exec_prefix)
4348 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4349 + strlen (spec_version)
4350 + strlen (spec_machine) + 3);
4351 strcpy (temp, gcc_exec_prefix);
4352 strcat (temp, spec_machine);
4353 strcat (temp, dir_separator_str);
4354 strcat (temp, spec_version);
4355 strcat (temp, dir_separator_str);
4356 gcc_exec_prefix = temp;
4359 /* Now we have the specs.
4360 Set the `valid' bits for switches that match anything in any spec. */
4362 validate_all_switches ();
4364 /* Now that we have the switches and the specs, set
4365 the subdirectory based on the options. */
4366 set_multilib_dir ();
4368 /* Warn about any switches that no pass was interested in. */
4370 for (i = 0; i < n_switches; i++)
4371 if (! switches[i].valid)
4372 error ("unrecognized option `-%s'", switches[i].part1);
4374 /* Obey some of the options. */
4376 if (print_search_dirs)
4378 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4379 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4380 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4384 if (print_file_name)
4386 printf ("%s\n", find_file (print_file_name));
4390 if (print_prog_name)
4392 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4393 printf ("%s\n", (newname ? newname : print_prog_name));
4397 if (print_multi_lib)
4399 print_multilib_info ();
4403 if (print_multi_directory)
4405 if (multilib_dir == NULL)
4408 printf ("%s\n", multilib_dir);
4414 if (! strcmp (version_string, compiler_version))
4415 fprintf (stderr, "gcc version %s\n", version_string);
4417 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4418 version_string, compiler_version);
4425 fatal ("No input files");
4427 /* Make a place to record the compiler output file names
4428 that correspond to the input files. */
4430 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4431 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4433 /* Record which files were specified explicitly as link input. */
4435 explicit_link_files = xmalloc (n_infiles);
4436 bzero (explicit_link_files, n_infiles);
4438 for (i = 0; i < n_infiles; i++)
4440 register struct compiler *cp = 0;
4441 int this_file_error = 0;
4443 /* Tell do_spec what to substitute for %i. */
4445 input_filename = infiles[i].name;
4446 input_filename_length = strlen (input_filename);
4447 input_file_number = i;
4449 /* Use the same thing in %o, unless cp->spec says otherwise. */
4451 outfiles[i] = input_filename;
4453 /* Figure out which compiler from the file's suffix. */
4455 cp = lookup_compiler (infiles[i].name, input_filename_length,
4456 infiles[i].language);
4460 /* Ok, we found an applicable compiler. Run its spec. */
4461 /* First say how much of input_filename to substitute for %b */
4465 input_basename = input_filename;
4466 for (p = input_filename; *p; p++)
4467 if (*p == '/' || *p == DIR_SEPARATOR)
4468 input_basename = p + 1;
4470 /* Find a suffix starting with the last period,
4471 and set basename_length to exclude that suffix. */
4472 basename_length = strlen (input_basename);
4473 p = input_basename + basename_length;
4474 while (p != input_basename && *p != '.') --p;
4475 if (*p == '.' && p != input_basename)
4477 basename_length = p - input_basename;
4478 input_suffix = p + 1;
4484 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4486 len += strlen (cp->spec[j]);
4488 p = (char *) xmalloc (len + 1);
4491 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4494 strcpy (p + len, cp->spec[j]);
4495 len += strlen (cp->spec[j]);
4498 value = do_spec (p);
4501 this_file_error = 1;
4504 /* If this file's name does not contain a recognized suffix,
4505 record it as explicit linker input. */
4508 explicit_link_files[i] = 1;
4510 /* Clear the delete-on-failure queue, deleting the files in it
4511 if this compilation failed. */
4513 if (this_file_error)
4515 delete_failure_queue ();
4518 /* If this compilation succeeded, don't delete those files later. */
4519 clear_failure_queue ();
4522 /* Run ld to link all the compiler output files. */
4524 if (error_count == 0)
4526 int tmp = execution_count;
4530 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4532 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4533 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4535 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4537 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4538 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4541 for (i = 0; i < n_switches; i++)
4545 obstack_grow (&collect_obstack, " ", 1);
4548 obstack_grow (&collect_obstack, "-", 1);
4549 obstack_grow (&collect_obstack, switches[i].part1,
4550 strlen (switches[i].part1));
4552 for (args = switches[i].args; args && *args; args++)
4554 obstack_grow (&collect_obstack, " ", 1);
4555 obstack_grow (&collect_obstack, *args, strlen (*args));
4558 obstack_grow (&collect_obstack, "\0", 1);
4559 putenv (obstack_finish (&collect_obstack));
4561 value = do_spec (link_command_spec);
4564 linker_was_run = (tmp != execution_count);
4567 /* Warn if a -B option was specified but the prefix was never used. */
4568 unused_prefix_warnings (&exec_prefixes);
4569 unused_prefix_warnings (&startfile_prefixes);
4571 /* If options said don't run linker,
4572 complain about input files to be given to the linker. */
4574 if (! linker_was_run && error_count == 0)
4575 for (i = 0; i < n_infiles; i++)
4576 if (explicit_link_files[i])
4577 error ("%s: linker input file unused since linking not done",
4580 /* Delete some or all of the temporary files we made. */
4583 delete_failure_queue ();
4584 delete_temp_files ();
4586 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4591 /* Find the proper compilation spec for the file name NAME,
4592 whose length is LENGTH. LANGUAGE is the specified language,
4593 or 0 if none specified. */
4595 static struct compiler *
4596 lookup_compiler (name, length, language)
4601 struct compiler *cp;
4603 /* Look for the language, if one is spec'd. */
4606 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4610 if (cp->suffix[0] == '@'
4611 && !strcmp (cp->suffix + 1, language))
4615 error ("language %s not recognized", language);
4618 /* Look for a suffix. */
4619 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4621 if (/* The suffix `-' matches only the file name `-'. */
4622 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4624 (strlen (cp->suffix) < length
4625 /* See if the suffix matches the end of NAME. */
4627 && (!strcmp (cp->suffix,
4628 name + length - strlen (cp->suffix))
4629 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4630 && !strcasecmp (cp->suffix,
4631 name + length - strlen (cp->suffix)))))
4633 && !strcmp (cp->suffix,
4634 name + length - strlen (cp->suffix))))
4637 if (cp->spec[0][0] == '@')
4639 struct compiler *new;
4640 /* An alias entry maps a suffix to a language.
4641 Search for the language; pass 0 for NAME and LENGTH
4642 to avoid infinite recursion if language not found.
4643 Construct the new compiler spec. */
4644 language = cp->spec[0] + 1;
4645 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4646 new->suffix = cp->suffix;
4647 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4648 (char *) new->spec, sizeof new->spec);
4651 /* A non-alias entry: return it. */
4663 register char *value = (char *) malloc (size);
4665 fatal ("virtual memory exhausted");
4670 xrealloc (ptr, size)
4674 register char *value = (char *) realloc (ptr, size);
4676 fatal ("virtual memory exhausted");
4680 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4686 int len1 = strlen (s1);
4687 int len2 = strlen (s2);
4688 char *result = xmalloc (len1 + len2 + 1);
4690 strcpy (result, s1);
4691 strcpy (result + len1, s2);
4692 *(result + len1 + len2) = 0;
4698 concat3 (s1, s2, s3)
4701 return concat (concat (s1, s2), s3);
4705 concat4 (s1, s2, s3, s4)
4706 char *s1, *s2, *s3, *s4;
4708 return concat (concat (s1, s2), concat (s3, s4));
4712 concat6 (s1, s2, s3, s4, s5, s6)
4713 char *s1, *s2, *s3, *s4, *s5, *s6;
4715 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4719 save_string (s, len)
4723 register char *result = xmalloc (len + 1);
4725 bcopy (s, result, len);
4731 pfatal_with_name (name)
4736 if (errno < sys_nerr)
4737 s = concat ("%s: ", my_strerror( errno ));
4739 s = "cannot open %s";
4744 perror_with_name (name)
4749 if (errno < sys_nerr)
4750 s = concat ("%s: ", my_strerror( errno ));
4752 s = "cannot open %s";
4762 if (errno < sys_nerr)
4763 s = concat ("installation problem, cannot exec %s: ", my_strerror( errno ));
4765 s = "installation problem, cannot exec %s";
4769 /* More 'friendly' abort that prints the line and file.
4770 config.h can #define abort fancy_abort if you like that sort of thing. */
4775 fatal ("Internal gcc abort.");
4780 /* Output an error message and exit */
4783 fatal VPROTO((char *format, ...))
4790 VA_START (ap, format);
4793 format = va_arg (ap, char*);
4796 fprintf (stderr, "%s: ", programname);
4797 vfprintf (stderr, format, ap);
4799 fprintf (stderr, "\n");
4800 delete_temp_files ();
4805 error VPROTO((char *format, ...))
4812 VA_START (ap, format);
4815 format = va_arg (ap, char*);
4818 fprintf (stderr, "%s: ", programname);
4819 vfprintf (stderr, format, ap);
4822 fprintf (stderr, "\n");
4825 #else /* not HAVE_VPRINTF */
4828 fatal (msg, arg1, arg2)
4829 char *msg, *arg1, *arg2;
4831 error (msg, arg1, arg2);
4832 delete_temp_files ();
4837 error (msg, arg1, arg2)
4838 char *msg, *arg1, *arg2;
4840 fprintf (stderr, "%s: ", programname);
4841 fprintf (stderr, msg, arg1, arg2);
4842 fprintf (stderr, "\n");
4845 #endif /* not HAVE_VPRINTF */
4849 validate_all_switches ()
4851 struct compiler *comp;
4854 struct spec_list *spec;
4856 for (comp = compilers; comp->spec[0]; comp++)
4859 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4863 if (c == '%' && *p == '{')
4864 /* We have a switch spec. */
4865 validate_switches (p + 1);
4869 /* look through the linked list of extra specs read from the specs file */
4870 for (spec = specs; spec ; spec = spec->next)
4874 if (c == '%' && *p == '{')
4875 /* We have a switch spec. */
4876 validate_switches (p + 1);
4879 p = link_command_spec;
4881 if (c == '%' && *p == '{')
4882 /* We have a switch spec. */
4883 validate_switches (p + 1);
4885 /* Now notice switches mentioned in the machine-specific specs. */
4889 if (c == '%' && *p == '{')
4890 /* We have a switch spec. */
4891 validate_switches (p + 1);
4895 if (c == '%' && *p == '{')
4896 /* We have a switch spec. */
4897 validate_switches (p + 1);
4901 if (c == '%' && *p == '{')
4902 /* We have a switch spec. */
4903 validate_switches (p + 1);
4905 p = signed_char_spec;
4907 if (c == '%' && *p == '{')
4908 /* We have a switch spec. */
4909 validate_switches (p + 1);
4913 if (c == '%' && *p == '{')
4914 /* We have a switch spec. */
4915 validate_switches (p + 1);
4919 if (c == '%' && *p == '{')
4920 /* We have a switch spec. */
4921 validate_switches (p + 1);
4925 if (c == '%' && *p == '{')
4926 /* We have a switch spec. */
4927 validate_switches (p + 1);
4931 if (c == '%' && *p == '{')
4932 /* We have a switch spec. */
4933 validate_switches (p + 1);
4937 if (c == '%' && *p == '{')
4938 /* We have a switch spec. */
4939 validate_switches (p + 1);
4943 if (c == '%' && *p == '{')
4944 /* We have a switch spec. */
4945 validate_switches (p + 1);
4948 /* Look at the switch-name that comes after START
4949 and mark as valid all supplied switches that match it. */
4952 validate_switches (start)
4955 register char *p = start;
4970 while (*p != ':' && *p != '}') p++;
4974 else if (p[-1] == '*')
4976 /* Mark all matching switches as valid. */
4978 for (i = 0; i < n_switches; i++)
4979 if (!strncmp (switches[i].part1, filter, p - filter))
4980 switches[i].valid = 1;
4984 /* Mark an exact matching switch as valid. */
4985 for (i = 0; i < n_switches; i++)
4987 if (!strncmp (switches[i].part1, filter, p - filter)
4988 && switches[i].part1[p - filter] == 0)
4989 switches[i].valid = 1;
4994 /* Check whether a particular argument was used. */
5003 for (i = 0; i < n_switches; i++)
5004 if (! strncmp (switches[i].part1, p, len)
5005 && strlen (switches[i].part1) == len)
5010 /* Work out the subdirectory to use based on the
5011 options. The format of multilib_select is a list of elements.
5012 Each element is a subdirectory name followed by a list of options
5013 followed by a semicolon. gcc will consider each line in turn. If
5014 none of the options beginning with an exclamation point are
5015 present, and all of the other options are present, that
5016 subdirectory will be used. */
5021 char *p = multilib_select;
5023 char *this_path, *this_arg;
5028 /* Ignore newlines. */
5035 /* Get the initial path. */
5043 this_path_len = p - this_path;
5045 /* Check the arguments. */
5060 while (*p != ' ' && *p != ';')
5067 if (*this_arg == '!')
5068 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5070 failed = ! used_arg (this_arg, p - this_arg);
5078 if (this_path_len != 1
5079 || this_path[0] != '.')
5081 multilib_dir = xmalloc (this_path_len + 1);
5082 strncpy (multilib_dir, this_path, this_path_len);
5083 multilib_dir[this_path_len] = '\0';
5092 /* Print out the multiple library subdirectory selection
5093 information. This prints out a series of lines. Each line looks
5094 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5095 required. Only the desired options are printed out, the negative
5096 matches. The options are print without a leading dash. There are
5097 no spaces to make it easy to use the information in the shell.
5098 Each subdirectory is printed only once. This assumes the ordering
5099 generated by the genmultilib script. */
5102 print_multilib_info ()
5104 char *p = multilib_select;
5105 char *last_path = 0, *this_path;
5107 int last_path_len = 0;
5111 /* Ignore newlines. */
5118 /* Get the initial path. */
5127 /* If this is a duplicate, skip it. */
5128 skip = (last_path != 0 && p - this_path == last_path_len
5129 && ! strncmp (last_path, this_path, last_path_len));
5131 last_path = this_path;
5132 last_path_len = p - this_path;
5138 for (p1 = last_path; p1 < p; p1++)
5157 use_arg = *p != '!';
5162 while (*p != ' ' && *p != ';')