1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994 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, colon separates directories in a path. */
148 #ifndef PATH_SEPARATOR
149 #define PATH_SEPARATOR ':'
152 #ifndef DIR_SEPARATOR
153 #define DIR_SEPARATOR '/'
156 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
158 #define obstack_chunk_alloc xmalloc
159 #define obstack_chunk_free free
162 extern char *getenv ();
169 #if defined(bsd4_4) || defined(__NetBSD__)
170 extern const char *const sys_errlist[];
172 extern char *sys_errlist[];
175 extern int execv (), execvp ();
177 /* If a stage of compilation returns an exit status >= 1,
178 compilation of that file ceases. */
180 #define MIN_FATAL_STATUS 1
182 /* Flag saying to print the full filename of this file
183 as found through our usual search mechanism. */
185 static char *print_file_name = NULL;
187 /* As print_file_name, but search for executable file. */
189 static char *print_prog_name = NULL;
191 /* Flag saying to print the relative path we'd use to
192 find libgcc.a given the current compiler flags. */
194 static int print_multi_directory;
196 /* Flag saying to print the list of subdirectories and
197 compiler flags used to select them in a standard form. */
199 static int print_multi_lib;
201 /* Flag indicating whether we should print the command and arguments */
203 static int verbose_flag;
205 /* Nonzero means write "temp" files in source directory
206 and use the source file's name in them, and don't delete them. */
208 static int save_temps_flag;
210 /* The compiler version. */
212 static char *compiler_version;
214 /* The target version specified with -V */
216 static char *spec_version = DEFAULT_TARGET_VERSION;
218 /* The target machine specified with -b. */
220 static char *spec_machine = DEFAULT_TARGET_MACHINE;
222 /* Nonzero if cross-compiling.
223 When -b is used, the value comes from the `specs' file. */
226 static int cross_compile = 1;
228 static int cross_compile = 0;
231 /* The number of errors that have occurred; the link phase will not be
232 run if this is non-zero. */
233 static int error_count = 0;
235 /* This is the obstack which we use to allocate many strings. */
237 static struct obstack obstack;
239 /* This is the obstack to build an environment variable to pass to
240 collect2 that describes all of the relevant switches of what to
241 pass the compiler in building the list of pointers to constructors
244 static struct obstack collect_obstack;
246 extern char *version_string;
248 /* Forward declaration for prototypes. */
251 static void set_spec PROTO((char *, char *));
252 static struct compiler *lookup_compiler PROTO((char *, int, char *));
253 static char *find_a_file PROTO((struct path_prefix *, char *, int));
254 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
255 static char *skip_whitespace PROTO((char *));
256 static void record_temp_file PROTO((char *, int, int));
257 static void delete_if_ordinary PROTO((char *));
258 static void delete_temp_files PROTO((void));
259 static void delete_failure_queue PROTO((void));
260 static void clear_failure_queue PROTO((void));
261 static char *choose_temp_base_try PROTO((char *, char *));
262 static void choose_temp_base PROTO((void));
263 static int check_live_switch PROTO((int, int));
264 static char *handle_braces PROTO((char *));
265 static char *save_string PROTO((char *, int));
266 static char *concat PROTO((char *, char *));
267 static char *concat3 PROTO((char *, char *, char *));
268 static char *concat4 PROTO((char *, char *, char *, char *));
269 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
271 static int do_spec PROTO((char *));
272 static int do_spec_1 PROTO((char *, int, char *));
273 static char *find_file PROTO((char *));
274 static int is_directory PROTO((char *, char *, int));
275 static void validate_switches PROTO((char *));
276 static void validate_all_switches PROTO((void));
277 static void give_switch PROTO((int, int));
278 static int used_arg PROTO((char *, int));
279 static void set_multilib_dir PROTO((void));
280 static void print_multilib_info PROTO((void));
281 static void pfatal_with_name PROTO((char *));
282 static void perror_with_name PROTO((char *));
283 static void perror_exec PROTO((char *));
285 static void fatal PVPROTO((char *, ...));
286 static void error PVPROTO((char *, ...));
288 /* We must not provide any prototype here, even if ANSI C. */
289 static void fatal PROTO(());
290 static void error PROTO(());
297 /* Specs are strings containing lines, each of which (if not blank)
298 is made up of a program name, and arguments separated by spaces.
299 The program name must be exact and start from root, since no path
300 is searched and it is unreliable to depend on the current working directory.
301 Redirection of input or output is not supported; the subprograms must
302 accept filenames saying what files to read and write.
304 In addition, the specs can contain %-sequences to substitute variable text
305 or for conditional text. Here is a table of all defined %-sequences.
306 Note that spaces are not generated automatically around the results of
307 expanding these sequences; therefore, you can concatenate them together
308 or with constant text in a single argument.
310 %% substitute one % into the program name or argument.
311 %i substitute the name of the input file being processed.
312 %b substitute the basename of the input file being processed.
313 This is the substring up to (and not including) the last period
314 and not including the directory.
315 %g substitute the temporary-file-name-base. This is a string chosen
316 once per compilation. Different temporary file names are made by
317 concatenation of constant strings on the end, as in `%g.s'.
318 %g also has the same effect of %d.
319 %u like %g, but make the temporary file name unique.
320 %U returns the last file name generated with %u.
321 %d marks the argument containing or following the %d as a
322 temporary file name, so that that file will be deleted if CC exits
323 successfully. Unlike %g, this contributes no text to the argument.
324 %w marks the argument containing or following the %w as the
325 "output file" of this compilation. This puts the argument
326 into the sequence of arguments that %o will substitute later.
328 like %{...} but mark last argument supplied within
329 as a file to be deleted on failure.
330 %o substitutes the names of all the output files, with spaces
331 automatically placed around them. You should write spaces
332 around the %o as well or the results are undefined.
333 %o is for use in the specs for running the linker.
334 Input files whose names have no recognized suffix are not compiled
335 at all, but they are included among the output files, so they will
337 %p substitutes the standard macro predefinitions for the
338 current target machine. Use this when running cpp.
339 %P like %p, but puts `__' before and after the name of each macro.
340 (Except macros that already have __.)
342 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
343 %s current argument is the name of a library or startup file of some sort.
344 Search for that file in a standard list of directories
345 and substitute the full name found.
346 %eSTR Print STR as an error message. STR is terminated by a newline.
347 Use this when inconsistent options are detected.
348 %x{OPTION} Accumulate an option for %X.
349 %X Output the accumulated linker options specified by compilations.
350 %Y Output the accumulated assembler options specified by compilations.
351 %Z Output the accumulated preprocessor options specified by compilations.
352 %v1 Substitute the major version number of GCC.
353 (For version 2.5.n, this is 2.)
354 %v2 Substitute the minor version number of GCC.
355 (For version 2.5.n, this is 5.)
356 %a process ASM_SPEC as a spec.
357 This allows config.h to specify part of the spec for running as.
358 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
359 used here. This can be used to run a post-processor after the
360 assembler has done it's job.
361 %D Dump out a -L option for each directory in startfile_prefixes.
362 If multilib_dir is set, extra entries are generated with it affixed.
363 %l process LINK_SPEC as a spec.
364 %L process LIB_SPEC as a spec.
365 %G process LIBGCC_SPEC as a spec.
366 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
367 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
368 %c process SIGNED_CHAR_SPEC as a spec.
369 %C process CPP_SPEC as a spec. A capital C is actually used here.
370 %1 process CC1_SPEC as a spec.
371 %2 process CC1PLUS_SPEC as a spec.
372 %| output "-" if the input for the current command is coming from a pipe.
373 %* substitute the variable part of a matched option. (See below.)
374 Note that each comma in the substituted string is replaced by
376 %{S} substitutes the -S switch, if that switch was given to CC.
377 If that switch was not specified, this substitutes nothing.
378 Here S is a metasyntactic variable.
379 %{S*} substitutes all the switches specified to CC whose names start
380 with -S. This is used for -o, -D, -I, etc; switches that take
381 arguments. CC considers `-o foo' as being one switch whose
382 name starts with `o'. %{o*} would substitute this text,
383 including the space; thus, two arguments would be generated.
384 %{S*:X} substitutes X if one or more switches whose names start with -S are
385 specified to CC. Note that the tail part of the -S option
386 (i.e. the part matched by the `*') will be substituted for each
387 occurrence of %* within X.
388 %{S:X} substitutes X, but only if the -S switch was given to CC.
389 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
390 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
391 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
392 %{.S:X} substitutes X, but only if processing a file with suffix S.
393 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
394 %(Spec) processes a specification defined in a specs file as *Spec:
395 %[Spec] as above, but put __ around -D arguments
397 The conditional text X in a %{S:X} or %{!S:X} construct may contain
398 other nested % constructs or spaces, or even newlines. They are
399 processed as usual, as described above.
401 The -O, -f, -m, and -W switches are handled specifically in these
402 constructs. If another value of -O or the negated form of a -f, -m, or
403 -W switch is found later in the command line, the earlier switch
404 value is ignored, except with {S*} where S is just one letter; this
405 passes all matching options.
407 The character | is used to indicate that a command should be piped to
408 the following command, but only if -pipe is specified.
410 Note that it is built into CC which switches take arguments and which
411 do not. You might think it would be useful to generalize this to
412 allow each compiler's spec to say which switches take arguments. But
413 this cannot be done in a consistent fashion. CC cannot even decide
414 which input files have been specified without knowing which switches
415 take arguments, and it must know which input files to compile in order
416 to tell which compilers to run.
418 CC also knows implicitly that arguments starting in `-l' are to be
419 treated as compiler output files, and passed to the linker in their
420 proper position among the other output files. */
422 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
424 /* config.h can define ASM_SPEC to provide extra args to the assembler
425 or extra switch-translations. */
430 /* config.h can define ASM_FINAL_SPEC to run a post processor after
431 the assembler has run. */
432 #ifndef ASM_FINAL_SPEC
433 #define ASM_FINAL_SPEC ""
436 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
437 or extra switch-translations. */
442 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
443 or extra switch-translations. */
448 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
449 or extra switch-translations. */
451 #define CC1PLUS_SPEC ""
454 /* config.h can define LINK_SPEC to provide extra args to the linker
455 or extra switch-translations. */
460 /* config.h can define LIB_SPEC to override the default libraries. */
462 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
465 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
468 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
469 /* Have gcc do the search for libgcc.a. */
470 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
472 #define LIBGCC_SPEC "%{!shared:-lgcc}"
476 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
477 #ifndef STARTFILE_SPEC
478 #define STARTFILE_SPEC \
479 "%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}"
482 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
483 Make the string nonempty to require spaces there. */
484 #ifndef SWITCHES_NEED_SPACES
485 #define SWITCHES_NEED_SPACES ""
488 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
490 #define ENDFILE_SPEC ""
493 /* This spec is used for telling cpp whether char is signed or not. */
494 #ifndef SIGNED_CHAR_SPEC
495 /* Use #if rather than ?:
496 because MIPS C compiler rejects like ?: in initializers. */
497 #if DEFAULT_SIGNED_CHAR
498 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
500 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
504 /* MULTILIB_SELECT comes from multilib.h. It gives a
505 string interpreted by set_multilib_dir to select a library
506 subdirectory based on the compiler options. */
507 #ifndef MULTILIB_SELECT
508 #define MULTILIB_SELECT ". ;"
511 static char *cpp_spec = CPP_SPEC;
512 static char *cpp_predefines = CPP_PREDEFINES;
513 static char *cc1_spec = CC1_SPEC;
514 static char *cc1plus_spec = CC1PLUS_SPEC;
515 static char *signed_char_spec = SIGNED_CHAR_SPEC;
516 static char *asm_spec = ASM_SPEC;
517 static char *asm_final_spec = ASM_FINAL_SPEC;
518 static char *link_spec = LINK_SPEC;
519 static char *lib_spec = LIB_SPEC;
520 static char *libgcc_spec = LIBGCC_SPEC;
521 static char *endfile_spec = ENDFILE_SPEC;
522 static char *startfile_spec = STARTFILE_SPEC;
523 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
524 static char *multilib_select = MULTILIB_SELECT;
526 /* This defines which switch letters take arguments. */
528 #ifndef SWITCH_TAKES_ARG
529 #define SWITCH_TAKES_ARG(CHAR) \
530 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
531 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
532 || (CHAR) == 'I' || (CHAR) == 'm' \
533 || (CHAR) == 'L' || (CHAR) == 'A')
536 /* This defines which multi-letter switches take arguments. */
538 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
539 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
540 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
541 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
542 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
543 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
544 || !strcmp (STR, "isystem"))
546 #ifndef WORD_SWITCH_TAKES_ARG
547 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
550 /* Record the mapping from file suffixes for compilation specs. */
554 char *suffix; /* Use this compiler for input files
555 whose names end in this suffix. */
557 char *spec[4]; /* To use this compiler, concatenate these
558 specs and pass to do_spec. */
561 /* Pointer to a vector of `struct compiler' that gives the spec for
562 compiling a file, based on its suffix.
563 A file that does not end in any of these suffixes will be passed
564 unchanged to the loader and nothing else will be done to it.
566 An entry containing two 0s is used to terminate the vector.
568 If multiple entries match a file, the last matching one is used. */
570 static struct compiler *compilers;
572 /* Number of entries in `compilers', not counting the null terminator. */
574 static int n_compilers;
576 /* The default list of file name suffixes and their compilation specs. */
578 static struct compiler default_compilers[] =
582 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
583 %{C:%{!E:%eGNU C does not support -C without using -E}}\
584 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
585 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
586 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
587 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
588 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
589 %{traditional-cpp:-traditional}\
590 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
591 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
592 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
593 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
594 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
595 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
597 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
598 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
599 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
600 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
601 %{!pipe:%g.s} %A\n }}}}"},
603 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
604 %{C:%{!E:%eGNU C does not support -C without using -E}}\
605 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
606 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
607 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
608 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
609 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
610 %{traditional-cpp:-traditional}\
611 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
613 %{!E:%e-E required when input is from standard input}"},
614 {".m", "@objective-c"},
616 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
617 %{C:%{!E:%eGNU C does not support -C without using -E}}\
618 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
619 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
620 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
621 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
622 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
623 %{traditional-cpp:-traditional}\
624 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
625 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
626 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
627 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
628 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
629 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
630 -lang-objc %{gen-decls} \
632 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
633 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
634 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
635 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
636 %{!pipe:%g.s} %A\n }}}}"},
639 "%{!E:%eCompilation of header file requested} \
640 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
641 %{C:%{!E:%eGNU C does not support -C without using -E}}\
642 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
643 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
644 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
645 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
646 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
647 %{traditional-cpp:-traditional}\
648 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
656 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
657 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
658 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
659 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
660 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
661 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
662 %{traditional-cpp:-traditional} %{trigraphs}\
663 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
664 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
665 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
666 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
667 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
668 %{traditional} %{v:-version} %{pg:-p} %{p}\
669 %{f*} %{+e*} %{aux-info*}\
670 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
671 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
672 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
673 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
674 %{!pipe:%g.s} %A\n }}}}"},
675 {".i", "@cpp-output"},
677 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
678 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
679 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
681 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
682 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
683 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
684 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
685 %{!pipe:%g.s} %A\n }}}}"},
686 {".ii", "@c++-cpp-output"},
688 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
689 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
690 %{traditional} %{v:-version} %{pg:-p} %{p}\
691 %{f*} %{+e*} %{aux-info*}\
692 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
693 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
694 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
695 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
696 %{!pipe:%g.s} %A\n }}}}"},
697 {".s", "@assembler"},
699 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
700 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
702 {".S", "@assembler-with-cpp"},
703 {"@assembler-with-cpp",
704 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
705 %{C:%{!E:%eGNU C does not support -C without using -E}}\
706 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
707 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
708 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
709 %{traditional-cpp:-traditional}\
710 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
711 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
712 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
713 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
714 %{!pipe:%g.s} %A\n }}}}"},
719 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
720 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
722 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
723 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
724 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
725 %{c:%W{o*}%{!o*:-o %w%b.o}}\
726 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
727 /* Mark end of table */
731 /* Number of elements in default_compilers, not counting the terminator. */
733 static int n_default_compilers
734 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
736 /* Here is the spec for running the linker, after compiling all files. */
738 /* -u* was put back because both BSD and SysV seem to support it. */
739 /* %{static:} simply prevents an error message if the target machine
740 doesn't handle -static. */
741 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
742 scripts which exist in user specified directories, or in standard
744 #ifdef LINK_LIBGCC_SPECIAL
745 /* Don't generate -L options. */
746 static char *link_command_spec = "\
748 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
749 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
750 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
751 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
754 static char *link_command_spec = "\
756 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
757 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
758 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
759 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
762 /* A vector of options to give to the linker.
763 These options are accumulated by %x,
764 and substituted into the linker command with %X. */
765 static int n_linker_options;
766 static char **linker_options;
768 /* A vector of options to give to the assembler.
769 These options are accumulated by -Wa,
770 and substituted into the assembler command with %Y. */
771 static int n_assembler_options;
772 static char **assembler_options;
774 /* A vector of options to give to the preprocessor.
775 These options are accumulated by -Wp,
776 and substituted into the preprocessor command with %Z. */
777 static int n_preprocessor_options;
778 static char **preprocessor_options;
780 /* Define how to map long options into short ones. */
782 /* This structure describes one mapping. */
785 /* The long option's name. */
787 /* The equivalent short option. */
789 /* Argument info. A string of flag chars; NULL equals no options.
790 a => argument required.
791 o => argument optional.
792 j => join argument to equivalent, making one word.
793 * => require other text after NAME as an argument. */
797 /* This is the table of mappings. Mappings are tried sequentially
798 for each option encountered; the first one that matches, wins. */
800 struct option_map option_map[] =
802 {"--all-warnings", "-Wall", 0},
803 {"--ansi", "-ansi", 0},
804 {"--assemble", "-S", 0},
805 {"--assert", "-A", "a"},
806 {"--comments", "-C", 0},
807 {"--compile", "-c", 0},
808 {"--debug", "-g", "oj"},
809 {"--define-macro", "-D", "a"},
810 {"--dependencies", "-M", 0},
811 {"--dump", "-d", "a"},
812 {"--dumpbase", "-dumpbase", "a"},
813 {"--entry", "-e", 0},
814 {"--extra-warnings", "-W", 0},
815 {"--for-assembler", "-Wa", "a"},
816 {"--for-linker", "-Xlinker", "a"},
817 {"--force-link", "-u", "a"},
818 {"--imacros", "-imacros", "a"},
819 {"--include", "-include", "a"},
820 {"--include-barrier", "-I-", 0},
821 {"--include-directory", "-I", "a"},
822 {"--include-directory-after", "-idirafter", "a"},
823 {"--include-prefix", "-iprefix", "a"},
824 {"--include-with-prefix", "-iwithprefix", "a"},
825 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
826 {"--include-with-prefix-after", "-iwithprefix", "a"},
827 {"--language", "-x", "a"},
828 {"--library-directory", "-L", "a"},
829 {"--machine", "-m", "aj"},
830 {"--machine-", "-m", "*j"},
831 {"--no-line-commands", "-P", 0},
832 {"--no-precompiled-includes", "-noprecomp", 0},
833 {"--no-standard-includes", "-nostdinc", 0},
834 {"--no-standard-libraries", "-nostdlib", 0},
835 {"--no-warnings", "-w", 0},
836 {"--optimize", "-O", "oj"},
837 {"--output", "-o", "a"},
838 {"--pedantic", "-pedantic", 0},
839 {"--pedantic-errors", "-pedantic-errors", 0},
840 {"--pipe", "-pipe", 0},
841 {"--prefix", "-B", "a"},
842 {"--preprocess", "-E", 0},
843 {"--print-file-name", "-print-file-name=", "aj"},
844 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
845 {"--print-missing-file-dependencies", "-MG", 0},
846 {"--print-multi-lib", "-print-multi-lib", 0},
847 {"--print-multi-directory", "-print-multi-directory", 0},
848 {"--print-prog-name", "-print-prog-name=", "aj"},
849 {"--profile", "-p", 0},
850 {"--profile-blocks", "-a", 0},
851 {"--quiet", "-q", 0},
852 {"--save-temps", "-save-temps", 0},
853 {"--shared", "-shared", 0},
854 {"--silent", "-q", 0},
855 {"--static", "-static", 0},
856 {"--symbolic", "-symbolic", 0},
857 {"--target", "-b", "a"},
858 {"--trace-includes", "-H", 0},
859 {"--traditional", "-traditional", 0},
860 {"--traditional-cpp", "-traditional-cpp", 0},
861 {"--trigraphs", "-trigraphs", 0},
862 {"--undefine-macro", "-U", "a"},
863 {"--use-version", "-V", "a"},
864 {"--user-dependencies", "-MM", 0},
865 {"--verbose", "-v", 0},
866 {"--version", "-dumpversion", 0},
867 {"--warn-", "-W", "*j"},
868 {"--write-dependencies", "-MD", 0},
869 {"--write-user-dependencies", "-MMD", 0},
873 /* Translate the options described by *ARGCP and *ARGVP.
874 Make a new vector and store it back in *ARGVP,
875 and store its length in *ARGVC. */
878 translate_options (argcp, argvp)
884 char **argv = *argvp;
885 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
889 newv[newindex++] = argv[i++];
893 /* Translate -- options. */
894 if (argv[i][0] == '-' && argv[i][1] == '-')
896 /* Find a mapping that applies to this option. */
897 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
899 int optlen = strlen (option_map[j].name);
900 int arglen = strlen (argv[i]);
901 int complen = arglen > optlen ? optlen : arglen;
902 char *arginfo = option_map[j].arg_info;
907 if (!strncmp (argv[i], option_map[j].name, complen))
914 k < sizeof (option_map) / sizeof (option_map[0]);
916 if (strlen (option_map[k].name) >= arglen
917 && !strncmp (argv[i], option_map[k].name, arglen))
919 error ("Ambiguous abbreviation %s", argv[i]);
923 if (k != sizeof (option_map) / sizeof (option_map[0]))
929 /* If the option has an argument, accept that. */
930 if (argv[i][optlen] == '=')
931 arg = argv[i] + optlen + 1;
933 /* If this mapping requires extra text at end of name,
934 accept that as "argument". */
935 else if (index (arginfo, '*') != 0)
936 arg = argv[i] + optlen;
938 /* Otherwise, extra text at end means mismatch.
939 Try other mappings. */
944 else if (index (arginfo, '*') != 0)
946 error ("Incomplete `%s' option", option_map[j].name);
950 /* Handle arguments. */
951 if (index (arginfo, 'a') != 0)
957 error ("Missing argument to `%s' option",
965 else if (index (arginfo, '*') != 0)
967 else if (index (arginfo, 'o') == 0)
970 error ("Extraneous argument to `%s' option",
975 /* Store the translation as one argv elt or as two. */
976 if (arg != 0 && index (arginfo, 'j') != 0)
977 newv[newindex++] = concat (option_map[j].equivalent, arg);
980 newv[newindex++] = option_map[j].equivalent;
981 newv[newindex++] = arg;
984 newv[newindex++] = option_map[j].equivalent;
992 /* Handle old-fashioned options--just copy them through,
993 with their arguments. */
994 else if (argv[i][0] == '-')
996 char *p = argv[i] + 1;
1000 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1001 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1002 else if (WORD_SWITCH_TAKES_ARG (p))
1003 nskip += WORD_SWITCH_TAKES_ARG (p);
1004 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1007 else if (! strcmp (p, "Xlinker"))
1010 /* Watch out for an option at the end of the command line that
1011 is missing arguments, and avoid skipping past the end of the
1013 if (nskip + i > argc)
1018 newv[newindex++] = argv[i++];
1023 /* Ordinary operands, or +e options. */
1024 newv[newindex++] = argv[i++];
1033 /* Read compilation specs from a file named FILENAME,
1034 replacing the default ones.
1036 A suffix which starts with `*' is a definition for
1037 one of the machine-specific sub-specs. The "suffix" should be
1038 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1039 The corresponding spec is stored in asm_spec, etc.,
1040 rather than in the `compilers' vector.
1042 Anything invalid in the file is a fatal error. */
1045 read_specs (filename)
1049 struct stat statbuf;
1054 fprintf (stderr, "Reading specs from %s\n", filename);
1056 /* Open and stat the file. */
1057 desc = open (filename, O_RDONLY, 0);
1059 pfatal_with_name (filename);
1060 if (stat (filename, &statbuf) < 0)
1061 pfatal_with_name (filename);
1063 /* Read contents of file into BUFFER. */
1064 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1065 read (desc, buffer, (unsigned) statbuf.st_size);
1066 buffer[statbuf.st_size] = 0;
1069 /* Scan BUFFER for specs, putting them in the vector. */
1075 char *in, *out, *p1, *p2;
1077 /* Advance P in BUFFER to the next nonblank nocomment line. */
1078 p = skip_whitespace (p);
1082 /* Find the colon that should end the suffix. */
1084 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1085 /* The colon shouldn't be missing. */
1087 fatal ("specs file malformed after %d characters", p1 - buffer);
1088 /* Skip back over trailing whitespace. */
1090 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1091 /* Copy the suffix to a string. */
1092 suffix = save_string (p, p2 - p);
1093 /* Find the next line. */
1094 p = skip_whitespace (p1 + 1);
1096 fatal ("specs file malformed after %d characters", p - buffer);
1098 /* Find next blank line. */
1099 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1100 /* Specs end at the blank line and do not include the newline. */
1101 spec = save_string (p, p1 - p);
1104 /* Delete backslash-newline sequences from the spec. */
1109 if (in[0] == '\\' && in[1] == '\n')
1111 else if (in[0] == '#')
1113 while (*in && *in != '\n') in++;
1120 if (suffix[0] == '*')
1122 if (! strcmp (suffix, "*link_command"))
1123 link_command_spec = spec;
1125 set_spec (suffix + 1, spec);
1129 /* Add this pair to the vector. */
1131 = ((struct compiler *)
1132 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1133 compilers[n_compilers].suffix = suffix;
1134 bzero ((char *) compilers[n_compilers].spec,
1135 sizeof compilers[n_compilers].spec);
1136 compilers[n_compilers].spec[0] = spec;
1138 bzero ((char *) &compilers[n_compilers],
1139 sizeof compilers[n_compilers]);
1143 link_command_spec = spec;
1146 if (link_command_spec == 0)
1147 fatal ("spec file has no spec for linking");
1156 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1157 be considered whitespace. */
1158 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1160 else if (*p == '\n' || *p == ' ' || *p == '\t')
1164 while (*p != '\n') p++;
1174 /* Structure to keep track of the specs that have been defined so far. These
1175 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1179 char *name; /* Name of the spec. */
1180 char *spec; /* The spec itself. */
1181 struct spec_list *next; /* Next spec in linked list. */
1184 /* List of specs that have been defined so far. */
1186 static struct spec_list *specs = (struct spec_list *) 0;
1188 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1189 removed; If the spec starts with a + then SPEC is added to the end of the
1193 set_spec (name, spec)
1197 struct spec_list *sl;
1200 /* See if the spec already exists */
1201 for (sl = specs; sl; sl = sl->next)
1202 if (strcmp (sl->name, name) == 0)
1207 /* Not found - make it */
1208 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1209 sl->name = save_string (name, strlen (name));
1210 sl->spec = save_string ("", 0);
1215 old_spec = sl->spec;
1216 if (name && spec[0] == '+' && isspace (spec[1]))
1217 sl->spec = concat (old_spec, spec + 1);
1219 sl->spec = save_string (spec, strlen (spec));
1221 if (! strcmp (name, "asm"))
1222 asm_spec = sl->spec;
1223 else if (! strcmp (name, "asm_final"))
1224 asm_final_spec = sl->spec;
1225 else if (! strcmp (name, "cc1"))
1226 cc1_spec = sl->spec;
1227 else if (! strcmp (name, "cc1plus"))
1228 cc1plus_spec = sl->spec;
1229 else if (! strcmp (name, "cpp"))
1230 cpp_spec = sl->spec;
1231 else if (! strcmp (name, "endfile"))
1232 endfile_spec = sl->spec;
1233 else if (! strcmp (name, "lib"))
1234 lib_spec = sl->spec;
1235 else if (! strcmp (name, "libgcc"))
1236 libgcc_spec = sl->spec;
1237 else if (! strcmp (name, "link"))
1238 link_spec = sl->spec;
1239 else if (! strcmp (name, "predefines"))
1240 cpp_predefines = sl->spec;
1241 else if (! strcmp (name, "signed_char"))
1242 signed_char_spec = sl->spec;
1243 else if (! strcmp (name, "startfile"))
1244 startfile_spec = sl->spec;
1245 else if (! strcmp (name, "switches_need_spaces"))
1246 switches_need_spaces = sl->spec;
1247 else if (! strcmp (name, "cross_compile"))
1248 cross_compile = atoi (sl->spec);
1249 else if (! strcmp (name, "multilib"))
1250 multilib_select = sl->spec;
1251 /* Free the old spec */
1256 /* Accumulate a command (program name and args), and run it. */
1258 /* Vector of pointers to arguments in the current line of specifications. */
1260 static char **argbuf;
1262 /* Number of elements allocated in argbuf. */
1264 static int argbuf_length;
1266 /* Number of elements in argbuf currently in use (containing args). */
1268 static int argbuf_index;
1270 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1271 temp file. Used only if MKTEMP_EACH_FILE. */
1273 static struct temp_name {
1274 char *suffix; /* suffix associated with the code. */
1275 int length; /* strlen (suffix). */
1276 int unique; /* Indicates whether %g or %u/%U was used. */
1277 char *filename; /* associated filename. */
1278 int filename_length; /* strlen (filename). */
1279 struct temp_name *next;
1282 /* Number of commands executed so far. */
1284 static int execution_count;
1286 /* Number of commands that exited with a signal. */
1288 static int signal_count;
1290 /* Name with which this program was invoked. */
1292 static char *programname;
1294 /* Structures to keep track of prefixes to try when looking for files. */
1298 char *prefix; /* String to prepend to the path. */
1299 struct prefix_list *next; /* Next in linked list. */
1300 int require_machine_suffix; /* Don't use without machine_suffix. */
1301 /* 2 means try both machine_suffix and just_machine_suffix. */
1302 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1307 struct prefix_list *plist; /* List of prefixes to try */
1308 int max_len; /* Max length of a prefix in PLIST */
1309 char *name; /* Name of this list (used in config stuff) */
1312 /* List of prefixes to try when looking for executables. */
1314 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1316 /* List of prefixes to try when looking for startup (crt0) files. */
1318 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1320 /* List of prefixes to try when looking for include files. */
1322 static struct path_prefix include_prefixes = { 0, 0, "include" };
1324 /* Suffix to attach to directories searched for commands.
1325 This looks like `MACHINE/VERSION/'. */
1327 static char *machine_suffix = 0;
1329 /* Suffix to attach to directories searched for commands.
1330 This is just `MACHINE/'. */
1332 static char *just_machine_suffix = 0;
1334 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1336 static char *gcc_exec_prefix;
1338 /* Default prefixes to attach to command names. */
1340 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1341 #undef MD_EXEC_PREFIX
1342 #undef MD_STARTFILE_PREFIX
1343 #undef MD_STARTFILE_PREFIX_1
1346 #ifndef STANDARD_EXEC_PREFIX
1347 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1348 #endif /* !defined STANDARD_EXEC_PREFIX */
1350 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1351 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1352 #ifdef MD_EXEC_PREFIX
1353 static char *md_exec_prefix = MD_EXEC_PREFIX;
1356 #ifndef STANDARD_STARTFILE_PREFIX
1357 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1358 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1360 #ifdef MD_STARTFILE_PREFIX
1361 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1363 #ifdef MD_STARTFILE_PREFIX_1
1364 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1366 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1367 static char *standard_startfile_prefix_1 = "/lib/";
1368 static char *standard_startfile_prefix_2 = "/usr/lib/";
1370 #ifndef TOOLDIR_BASE_PREFIX
1371 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1373 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1374 static char *tooldir_prefix;
1376 /* Subdirectory to use for locating libraries. Set by
1377 set_multilib_dir based on the compilation options. */
1379 static char *multilib_dir;
1381 /* Clear out the vector of arguments (after a command is executed). */
1389 /* Add one argument to the vector at the end.
1390 This is done when a space is seen or at the end of the line.
1391 If DELETE_ALWAYS is nonzero, the arg is a filename
1392 and the file should be deleted eventually.
1393 If DELETE_FAILURE is nonzero, the arg is a filename
1394 and the file should be deleted if this compilation fails. */
1397 store_arg (arg, delete_always, delete_failure)
1399 int delete_always, delete_failure;
1401 if (argbuf_index + 1 == argbuf_length)
1403 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1406 argbuf[argbuf_index++] = arg;
1407 argbuf[argbuf_index] = 0;
1409 if (delete_always || delete_failure)
1410 record_temp_file (arg, delete_always, delete_failure);
1413 /* Record the names of temporary files we tell compilers to write,
1414 and delete them at the end of the run. */
1416 /* This is the common prefix we use to make temp file names.
1417 It is chosen once for each run of this program.
1418 It is substituted into a spec by %g.
1419 Thus, all temp file names contain this prefix.
1420 In practice, all temp file names start with this prefix.
1422 This prefix comes from the envvar TMPDIR if it is defined;
1423 otherwise, from the P_tmpdir macro if that is defined;
1424 otherwise, in /usr/tmp or /tmp. */
1426 static char *temp_filename;
1428 /* Length of the prefix. */
1430 static int temp_filename_length;
1432 /* Define the list of temporary files to delete. */
1437 struct temp_file *next;
1440 /* Queue of files to delete on success or failure of compilation. */
1441 static struct temp_file *always_delete_queue;
1442 /* Queue of files to delete on failure of compilation. */
1443 static struct temp_file *failure_delete_queue;
1445 /* Record FILENAME as a file to be deleted automatically.
1446 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1447 otherwise delete it in any case.
1448 FAIL_DELETE nonzero means delete it if a compilation step fails;
1449 otherwise delete it in any case. */
1452 record_temp_file (filename, always_delete, fail_delete)
1457 register char *name;
1458 name = xmalloc (strlen (filename) + 1);
1459 strcpy (name, filename);
1463 register struct temp_file *temp;
1464 for (temp = always_delete_queue; temp; temp = temp->next)
1465 if (! strcmp (name, temp->name))
1467 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1468 temp->next = always_delete_queue;
1470 always_delete_queue = temp;
1476 register struct temp_file *temp;
1477 for (temp = failure_delete_queue; temp; temp = temp->next)
1478 if (! strcmp (name, temp->name))
1480 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1481 temp->next = failure_delete_queue;
1483 failure_delete_queue = temp;
1488 /* Delete all the temporary files whose names we previously recorded. */
1491 delete_if_ordinary (name)
1498 printf ("Delete %s? (y or n) ", name);
1502 while ((c = getchar ()) != '\n' && c != EOF) ;
1503 if (i == 'y' || i == 'Y')
1505 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1506 if (unlink (name) < 0)
1508 perror_with_name (name);
1512 delete_temp_files ()
1514 register struct temp_file *temp;
1516 for (temp = always_delete_queue; temp; temp = temp->next)
1517 delete_if_ordinary (temp->name);
1518 always_delete_queue = 0;
1521 /* Delete all the files to be deleted on error. */
1524 delete_failure_queue ()
1526 register struct temp_file *temp;
1528 for (temp = failure_delete_queue; temp; temp = temp->next)
1529 delete_if_ordinary (temp->name);
1533 clear_failure_queue ()
1535 failure_delete_queue = 0;
1538 /* Compute a string to use as the base of all temporary file names.
1539 It is substituted for %g. */
1542 choose_temp_base_try (try, base)
1549 else if (try == (char *)0)
1551 else if (access (try, R_OK | W_OK) != 0)
1564 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1565 base = choose_temp_base_try (getenv ("TMP"), base);
1566 base = choose_temp_base_try (getenv ("TEMP"), base);
1569 base = choose_temp_base_try (P_tmpdir, base);
1572 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1573 dir_separator_str, "tmp"),
1575 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1577 /* If all else fails, use the current directory! */
1578 if (base == (char *)0) base = concat(".", dir_separator_str);
1580 len = strlen (base);
1581 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1583 strcpy (temp_filename, base);
1584 if (len > 0 && temp_filename[len-1] != '/'
1585 && temp_filename[len-1] != DIR_SEPARATOR)
1586 temp_filename[len++] = DIR_SEPARATOR;
1587 strcpy (temp_filename + len, "ccXXXXXX");
1589 mktemp (temp_filename);
1590 temp_filename_length = strlen (temp_filename);
1591 if (temp_filename_length == 0)
1596 /* Routine to add variables to the environment. We do this to pass
1597 the pathname of the gcc driver, and the directories search to the
1598 collect2 program, which is being run as ld. This way, we can be
1599 sure of executing the right compiler when collect2 wants to build
1600 constructors and destructors. Since the environment variables we
1601 use come from an obstack, we don't have to worry about allocating
1610 #ifndef VMS /* nor about VMS */
1612 extern char **environ;
1613 char **old_environ = environ;
1617 int str_len = strlen (str);
1621 while ((ch = *p++) != '\0' && ch != '=')
1627 /* Search for replacing an existing environment variable, and
1628 count the number of total environment variables. */
1629 for (envp = old_environ; *envp; envp++)
1632 if (!strncmp (str, *envp, name_len))
1639 /* Add a new environment variable */
1640 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1642 bcopy ((char *) old_environ, (char *) (environ + 1),
1643 sizeof (char *) * (num_envs+1));
1648 #endif /* HAVE_PUTENV */
1651 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1654 putenv_from_prefixes (paths, env_var)
1655 struct path_prefix *paths;
1658 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1660 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1661 int first_time = TRUE;
1662 struct prefix_list *pprefix;
1664 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1666 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1668 int len = strlen (pprefix->prefix);
1671 && is_directory (pprefix->prefix, machine_suffix, 0))
1674 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1677 obstack_grow (&collect_obstack, pprefix->prefix, len);
1678 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1681 if (just_machine_suffix
1682 && pprefix->require_machine_suffix == 2
1683 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1686 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1689 obstack_grow (&collect_obstack, pprefix->prefix, len);
1690 obstack_grow (&collect_obstack, just_machine_suffix,
1694 if (!pprefix->require_machine_suffix)
1697 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1700 obstack_grow (&collect_obstack, pprefix->prefix, len);
1703 obstack_1grow (&collect_obstack, '\0');
1704 putenv (obstack_finish (&collect_obstack));
1708 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1709 access to check permissions.
1710 Return 0 if not found, otherwise return its name, allocated with malloc. */
1713 find_a_file (pprefix, name, mode)
1714 struct path_prefix *pprefix;
1719 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1720 struct prefix_list *pl;
1721 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1724 len += strlen (machine_suffix);
1726 temp = xmalloc (len);
1728 /* Determine the filename to execute (special case for absolute paths). */
1730 if (*name == '/' || *name == DIR_SEPARATOR)
1732 if (access (name, mode))
1734 strcpy (temp, name);
1739 for (pl = pprefix->plist; pl; pl = pl->next)
1743 /* Some systems have a suffix for executable files.
1744 So try appending that first. */
1745 if (file_suffix[0] != 0)
1747 strcpy (temp, pl->prefix);
1748 strcat (temp, machine_suffix);
1749 strcat (temp, name);
1750 strcat (temp, file_suffix);
1751 if (access (temp, mode) == 0)
1753 if (pl->used_flag_ptr != 0)
1754 *pl->used_flag_ptr = 1;
1759 /* Now try just the name. */
1760 strcpy (temp, pl->prefix);
1761 strcat (temp, machine_suffix);
1762 strcat (temp, name);
1763 if (access (temp, mode) == 0)
1765 if (pl->used_flag_ptr != 0)
1766 *pl->used_flag_ptr = 1;
1771 /* Certain prefixes are tried with just the machine type,
1772 not the version. This is used for finding as, ld, etc. */
1773 if (just_machine_suffix && pl->require_machine_suffix == 2)
1775 /* Some systems have a suffix for executable files.
1776 So try appending that first. */
1777 if (file_suffix[0] != 0)
1779 strcpy (temp, pl->prefix);
1780 strcat (temp, just_machine_suffix);
1781 strcat (temp, name);
1782 strcat (temp, file_suffix);
1783 if (access (temp, mode) == 0)
1785 if (pl->used_flag_ptr != 0)
1786 *pl->used_flag_ptr = 1;
1791 strcpy (temp, pl->prefix);
1792 strcat (temp, just_machine_suffix);
1793 strcat (temp, name);
1794 if (access (temp, mode) == 0)
1796 if (pl->used_flag_ptr != 0)
1797 *pl->used_flag_ptr = 1;
1802 /* Certain prefixes can't be used without the machine suffix
1803 when the machine or version is explicitly specified. */
1804 if (!pl->require_machine_suffix)
1806 /* Some systems have a suffix for executable files.
1807 So try appending that first. */
1808 if (file_suffix[0] != 0)
1810 strcpy (temp, pl->prefix);
1811 strcat (temp, name);
1812 strcat (temp, file_suffix);
1813 if (access (temp, mode) == 0)
1815 if (pl->used_flag_ptr != 0)
1816 *pl->used_flag_ptr = 1;
1821 strcpy (temp, pl->prefix);
1822 strcat (temp, name);
1823 if (access (temp, mode) == 0)
1825 if (pl->used_flag_ptr != 0)
1826 *pl->used_flag_ptr = 1;
1836 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1837 at the start of the list, otherwise it goes at the end.
1839 If WARN is nonzero, we will warn if no file is found
1840 through this prefix. WARN should point to an int
1841 which will be set to 1 if this entry is used.
1843 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1844 the complete value of machine_suffix.
1845 2 means try both machine_suffix and just_machine_suffix. */
1848 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1849 struct path_prefix *pprefix;
1852 int require_machine_suffix;
1855 struct prefix_list *pl, **prev;
1858 if (!first && pprefix->plist)
1860 for (pl = pprefix->plist; pl->next; pl = pl->next)
1865 prev = &pprefix->plist;
1867 /* Keep track of the longest prefix */
1869 len = strlen (prefix);
1870 if (len > pprefix->max_len)
1871 pprefix->max_len = len;
1873 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1874 pl->prefix = save_string (prefix, len);
1875 pl->require_machine_suffix = require_machine_suffix;
1876 pl->used_flag_ptr = warn;
1883 pl->next = (struct prefix_list *) 0;
1887 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1890 unused_prefix_warnings (pprefix)
1891 struct path_prefix *pprefix;
1893 struct prefix_list *pl = pprefix->plist;
1897 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1899 error ("file path prefix `%s' never used",
1901 /* Prevent duplicate warnings. */
1902 *pl->used_flag_ptr = 1;
1908 /* Get rid of all prefixes built up so far in *PLISTP. */
1911 free_path_prefix (pprefix)
1912 struct path_prefix *pprefix;
1914 struct prefix_list *pl = pprefix->plist;
1915 struct prefix_list *temp;
1921 free (temp->prefix);
1922 free ((char *) temp);
1924 pprefix->plist = (struct prefix_list *) 0;
1927 /* stdin file number. */
1928 #define STDIN_FILE_NO 0
1930 /* stdout file number. */
1931 #define STDOUT_FILE_NO 1
1933 /* value of `pipe': port index for reading. */
1936 /* value of `pipe': port index for writing. */
1937 #define WRITE_PORT 1
1939 /* Pipe waiting from last process, to be used as input for the next one.
1940 Value is STDIN_FILE_NO if no pipe is waiting
1941 (i.e. the next command is the first of a group). */
1943 static int last_pipe_input;
1945 /* Fork one piped subcommand. FUNC is the system call to use
1946 (either execv or execvp). ARGV is the arg vector to use.
1947 NOT_LAST is nonzero if this is not the last subcommand
1948 (i.e. its output should be piped to the next one.) */
1952 #include <process.h>
1954 pexecute (search_flag, program, argv, not_last)
1961 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1965 int i, el = search_flag ? 0 : 4;
1967 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1968 rf = scmd + strlen(program) + 2 + el;
1969 sprintf (scmd, "%s%s @%s.gp", program,
1970 (search_flag ? "" : ".exe"), temp_filename);
1971 argfile = fopen (rf, "w");
1973 pfatal_with_name (rf);
1975 for (i=1; argv[i]; i++)
1978 for (cp = argv[i]; *cp; cp++)
1980 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1981 fputc ('\\', argfile);
1982 fputc (*cp, argfile);
1984 fputc ('\n', argfile);
1995 perror_exec (program);
1996 return MIN_FATAL_STATUS << 8;
2003 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2006 pexecute (search_flag, program, argv, not_last)
2012 int (*func)() = (search_flag ? execv : execvp);
2015 int input_desc = last_pipe_input;
2016 int output_desc = STDOUT_FILE_NO;
2017 int retries, sleep_interval;
2019 /* If this isn't the last process, make a pipe for its output,
2020 and record it as waiting to be the input to the next process. */
2024 if (pipe (pdes) < 0)
2025 pfatal_with_name ("pipe");
2026 output_desc = pdes[WRITE_PORT];
2027 last_pipe_input = pdes[READ_PORT];
2030 last_pipe_input = STDIN_FILE_NO;
2032 /* Fork a subprocess; wait and retry if it fails. */
2034 for (retries = 0; retries < 4; retries++)
2039 sleep (sleep_interval);
2040 sleep_interval *= 2;
2047 pfatal_with_name ("fork");
2049 pfatal_with_name ("vfork");
2055 /* Move the input and output pipes into place, if nec. */
2056 if (input_desc != STDIN_FILE_NO)
2058 close (STDIN_FILE_NO);
2062 if (output_desc != STDOUT_FILE_NO)
2064 close (STDOUT_FILE_NO);
2066 close (output_desc);
2069 /* Close the parent's descs that aren't wanted here. */
2070 if (last_pipe_input != STDIN_FILE_NO)
2071 close (last_pipe_input);
2073 /* Exec the program. */
2074 (*func) (program, argv);
2075 perror_exec (program);
2081 /* In the parent, after forking.
2082 Close the descriptors that we made for this child. */
2083 if (input_desc != STDIN_FILE_NO)
2085 if (output_desc != STDOUT_FILE_NO)
2086 close (output_desc);
2088 /* Return child's process number. */
2093 #endif /* not __MSDOS__ and not OS2 */
2095 #if defined(OS2) || defined(WINNT)
2105 for (i = 1; argvec[i] != 0; i++)
2108 char *temp, *newtemp;
2111 len = strlen (temp);
2112 for (j = 0; j < len; j++)
2116 newtemp = xmalloc (len + 2);
2117 strncpy (newtemp, temp, j);
2119 strncpy (&newtemp [j+1], &temp [j], len-j);
2120 newtemp [len+1] = 0;
2134 #define FIX_ARGV(a) fix_argv(a)
2138 #define FIX_ARGV(a) a
2140 #endif /* OS2 or WINNT */
2143 pexecute (search_flag, program, argv, not_last)
2149 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2151 #endif /* OS2 or WINNT */
2154 /* Execute the command specified by the arguments on the current line of spec.
2155 When using pipes, this includes several piped-together commands
2156 with `|' between them.
2158 Return 0 if successful, -1 if failed. */
2164 int n_commands; /* # of command. */
2168 char *prog; /* program name. */
2169 char **argv; /* vector of args. */
2170 int pid; /* pid of process for this command. */
2173 struct command *commands; /* each command buffer with above info. */
2175 /* Count # of piped commands. */
2176 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2177 if (strcmp (argbuf[i], "|") == 0)
2180 /* Get storage for each command. */
2182 = (struct command *) alloca (n_commands * sizeof (struct command));
2184 /* Split argbuf into its separate piped processes,
2185 and record info about each one.
2186 Also search for the programs that are to be run. */
2188 commands[0].prog = argbuf[0]; /* first command. */
2189 commands[0].argv = &argbuf[0];
2190 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2192 commands[0].argv[0] = string;
2194 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2195 if (strcmp (argbuf[i], "|") == 0)
2196 { /* each command. */
2198 fatal ("-pipe not supported under MS-DOS");
2200 argbuf[i] = 0; /* termination of command args. */
2201 commands[n_commands].prog = argbuf[i + 1];
2202 commands[n_commands].argv = &argbuf[i + 1];
2203 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2205 commands[n_commands].argv[0] = string;
2209 argbuf[argbuf_index] = 0;
2211 /* If -v, print what we are about to do, and maybe query. */
2215 /* Print each piped command as a separate line. */
2216 for (i = 0; i < n_commands ; i++)
2220 for (j = commands[i].argv; *j; j++)
2221 fprintf (stderr, " %s", *j);
2223 /* Print a pipe symbol after all but the last command. */
2224 if (i + 1 != n_commands)
2225 fprintf (stderr, " |");
2226 fprintf (stderr, "\n");
2230 fprintf (stderr, "\nGo ahead? (y or n) ");
2234 while (getchar () != '\n') ;
2235 if (i != 'y' && i != 'Y')
2240 /* Run each piped subprocess. */
2242 last_pipe_input = STDIN_FILE_NO;
2243 for (i = 0; i < n_commands; i++)
2245 char *string = commands[i].argv[0];
2247 commands[i].pid = pexecute (string != commands[i].prog,
2248 string, commands[i].argv,
2249 i + 1 < n_commands);
2251 if (string != commands[i].prog)
2257 /* Wait for all the subprocesses to finish.
2258 We don't care what order they finish in;
2259 we know that N_COMMANDS waits will get them all. */
2264 for (i = 0; i < n_commands; i++)
2268 char *prog = "unknown";
2271 status = pid = commands[i].pid;
2274 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2276 pid = wait (&status);
2285 for (j = 0; j < n_commands; j++)
2286 if (commands[j].pid == pid)
2287 prog = commands[j].prog;
2289 if (WIFSIGNALED (status))
2291 fatal ("Internal compiler error: program %s got fatal signal %d",
2292 prog, WTERMSIG (status));
2296 else if (WIFEXITED (status)
2297 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2305 /* Find all the switches given to us
2306 and make a vector describing them.
2307 The elements of the vector are strings, one per switch given.
2308 If a switch uses following arguments, then the `part1' field
2309 is the switch itself and the `args' field
2310 is a null-terminated vector containing the following arguments.
2311 The `live_cond' field is 1 if the switch is true in a conditional spec,
2312 -1 if false (overridden by a later switch), and is initialized to zero.
2313 The `valid' field is nonzero if any spec has looked at this switch;
2314 if it remains zero at the end of the run, it must be meaningless. */
2324 static struct switchstr *switches;
2326 static int n_switches;
2334 /* Also a vector of input files specified. */
2336 static struct infile *infiles;
2338 static int n_infiles;
2340 /* And a vector of corresponding output files is made up later. */
2342 static char **outfiles;
2344 /* Create the vector `switches' and its contents.
2345 Store its length in `n_switches'. */
2348 process_command (argc, argv)
2354 char *spec_lang = 0;
2355 int last_language_n_infiles;
2357 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2362 /* Figure compiler version from version string. */
2364 compiler_version = save_string (version_string, strlen (version_string));
2365 for (temp = compiler_version; *temp; ++temp)
2374 /* Set up the default search paths. */
2376 if (gcc_exec_prefix)
2378 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2379 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2382 /* COMPILER_PATH and LIBRARY_PATH have values
2383 that are lists of directory names with colons. */
2385 temp = getenv ("COMPILER_PATH");
2388 char *startp, *endp;
2389 char *nstore = (char *) alloca (strlen (temp) + 3);
2391 startp = endp = temp;
2394 if (*endp == PATH_SEPARATOR || *endp == 0)
2396 strncpy (nstore, startp, endp-startp);
2398 strcpy (nstore, concat (".", dir_separator_str));
2399 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2401 nstore[endp-startp] = DIR_SEPARATOR;
2402 nstore[endp-startp+1] = 0;
2405 nstore[endp-startp] = 0;
2406 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2409 endp = startp = endp + 1;
2416 temp = getenv ("LIBRARY_PATH");
2417 if (temp && ! cross_compile)
2419 char *startp, *endp;
2420 char *nstore = (char *) alloca (strlen (temp) + 3);
2422 startp = endp = temp;
2425 if (*endp == PATH_SEPARATOR || *endp == 0)
2427 strncpy (nstore, startp, endp-startp);
2429 strcpy (nstore, concat (".", dir_separator_str));
2430 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2432 nstore[endp-startp] = DIR_SEPARATOR;
2433 nstore[endp-startp+1] = 0;
2436 nstore[endp-startp] = 0;
2437 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2440 endp = startp = endp + 1;
2447 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2448 temp = getenv ("LPATH");
2449 if (temp && ! cross_compile)
2451 char *startp, *endp;
2452 char *nstore = (char *) alloca (strlen (temp) + 3);
2454 startp = endp = temp;
2457 if (*endp == PATH_SEPARATOR || *endp == 0)
2459 strncpy (nstore, startp, endp-startp);
2461 strcpy (nstore, concat (".", dir_separator_str));
2462 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2464 nstore[endp-startp] = DIR_SEPARATOR;
2465 nstore[endp-startp+1] = 0;
2468 nstore[endp-startp] = 0;
2469 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2472 endp = startp = endp + 1;
2479 /* Convert new-style -- options to old-style. */
2480 translate_options (&argc, &argv);
2482 /* Scan argv twice. Here, the first time, just count how many switches
2483 there will be in their vector, and how many input files in theirs.
2484 Here we also parse the switches that cc itself uses (e.g. -v). */
2486 for (i = 1; i < argc; i++)
2488 if (! strcmp (argv[i], "-dumpspecs"))
2490 printf ("*asm:\n%s\n\n", asm_spec);
2491 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2492 printf ("*cpp:\n%s\n\n", cpp_spec);
2493 printf ("*cc1:\n%s\n\n", cc1_spec);
2494 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2495 printf ("*endfile:\n%s\n\n", endfile_spec);
2496 printf ("*link:\n%s\n\n", link_spec);
2497 printf ("*lib:\n%s\n\n", lib_spec);
2498 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2499 printf ("*startfile:\n%s\n\n", startfile_spec);
2500 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2501 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2502 printf ("*predefines:\n%s\n\n", cpp_predefines);
2503 printf ("*cross_compile:\n%d\n\n", cross_compile);
2504 printf ("*multilib:\n%s\n\n", multilib_select);
2508 else if (! strcmp (argv[i], "-dumpversion"))
2510 printf ("%s\n", version_string);
2513 else if (! strcmp (argv[i], "-dumpmachine"))
2515 printf ("%s\n", spec_machine);
2518 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2519 print_file_name = "libgcc.a";
2520 else if (! strncmp (argv[i], "-print-file-name=", 17))
2521 print_file_name = argv[i] + 17;
2522 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2523 print_prog_name = argv[i] + 17;
2524 else if (! strcmp (argv[i], "-print-multi-lib"))
2525 print_multi_lib = 1;
2526 else if (! strcmp (argv[i], "-print-multi-directory"))
2527 print_multi_directory = 1;
2528 else if (! strncmp (argv[i], "-Wa,", 4))
2531 /* Pass the rest of this option to the assembler. */
2533 n_assembler_options++;
2534 if (!assembler_options)
2536 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2539 = (char **) xrealloc (assembler_options,
2540 n_assembler_options * sizeof (char **));
2542 /* Split the argument at commas. */
2544 for (j = 4; argv[i][j]; j++)
2545 if (argv[i][j] == ',')
2547 assembler_options[n_assembler_options - 1]
2548 = save_string (argv[i] + prev, j - prev);
2549 n_assembler_options++;
2551 = (char **) xrealloc (assembler_options,
2552 n_assembler_options * sizeof (char **));
2555 /* Record the part after the last comma. */
2556 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2558 else if (! strncmp (argv[i], "-Wp,", 4))
2561 /* Pass the rest of this option to the preprocessor. */
2563 n_preprocessor_options++;
2564 if (!preprocessor_options)
2565 preprocessor_options
2566 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2568 preprocessor_options
2569 = (char **) xrealloc (preprocessor_options,
2570 n_preprocessor_options * sizeof (char **));
2572 /* Split the argument at commas. */
2574 for (j = 4; argv[i][j]; j++)
2575 if (argv[i][j] == ',')
2577 preprocessor_options[n_preprocessor_options - 1]
2578 = save_string (argv[i] + prev, j - prev);
2579 n_preprocessor_options++;
2580 preprocessor_options
2581 = (char **) xrealloc (preprocessor_options,
2582 n_preprocessor_options * sizeof (char **));
2585 /* Record the part after the last comma. */
2586 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2588 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2589 /* The +e options to the C++ front-end. */
2591 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2594 /* Split the argument at commas. */
2595 for (j = 3; argv[i][j]; j++)
2596 n_infiles += (argv[i][j] == ',');
2598 else if (strcmp (argv[i], "-Xlinker") == 0)
2601 fatal ("argument to `-Xlinker' is missing");
2606 else if (strncmp (argv[i], "-l", 2) == 0)
2608 else if (argv[i][0] == '-' && argv[i][1] != 0)
2610 register char *p = &argv[i][1];
2611 register int c = *p;
2616 if (p[1] == 0 && i + 1 == argc)
2617 fatal ("argument to `-b' is missing");
2619 spec_machine = argv[++i];
2621 spec_machine = p + 1;
2626 int *temp = (int *) xmalloc (sizeof (int));
2628 if (p[1] == 0 && i + 1 == argc)
2629 fatal ("argument to `-B' is missing");
2634 add_prefix (&exec_prefixes, value, 1, 0, temp);
2635 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2636 add_prefix (&include_prefixes, concat (value, "include"),
2639 /* As a kludge, if the arg is "[foo/]stageN/", just add
2640 "[foo/]include" to the include prefix. */
2642 int len = strlen (value);
2645 && (value[len - 8] == '/'
2646 || value[len - 8] == DIR_SEPARATOR)))
2647 && strncmp (value + len - 7, "stage", 5) == 0
2648 && isdigit (value[len - 2])
2649 && (value[len - 1] == '/'
2650 || value[len - 1] == DIR_SEPARATOR))
2653 add_prefix (&include_prefixes, "include", 1, 0, 0);
2656 char *string = xmalloc (len + 1);
2657 strncpy (string, value, len-7);
2658 strcat (string, "include");
2659 add_prefix (&include_prefixes, string, 1, 0, 0);
2666 case 'v': /* Print our subcommands and print versions. */
2668 /* If they do anything other than exactly `-v', don't set
2669 verbose_flag; rather, continue on to give the error. */
2676 if (p[1] == 0 && i + 1 == argc)
2677 fatal ("argument to `-V' is missing");
2679 spec_version = argv[++i];
2681 spec_version = p + 1;
2682 compiler_version = spec_version;
2686 if (!strcmp (p, "save-temps"))
2688 save_temps_flag = 1;
2695 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2696 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2697 else if (WORD_SWITCH_TAKES_ARG (p))
2698 i += WORD_SWITCH_TAKES_ARG (p);
2705 /* Set up the search paths before we go looking for config files. */
2707 /* These come before the md prefixes so that we will find gcc's subcommands
2708 (such as cpp) rather than those of the host system. */
2709 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2710 as well as trying the machine and the version. */
2712 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2713 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2716 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2717 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2719 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2722 /* If tooldir is relative, base it on exec_prefixes. A relative
2723 tooldir lets us move the installed tree as a unit.
2725 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2726 directories, so that we can search both the user specified directory
2727 and the standard place. */
2729 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2731 if (gcc_exec_prefix)
2733 char *gcc_exec_tooldir_prefix
2734 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2735 spec_version, dir_separator_str, tooldir_prefix);
2737 add_prefix (&exec_prefixes,
2738 concat3 (gcc_exec_tooldir_prefix, "bin",
2741 add_prefix (&startfile_prefixes,
2742 concat3 (gcc_exec_tooldir_prefix, "lib",
2747 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2748 dir_separator_str, spec_version,
2749 dir_separator_str, tooldir_prefix);
2752 add_prefix (&exec_prefixes,
2753 concat3 (tooldir_prefix, "bin", dir_separator_str),
2755 add_prefix (&startfile_prefixes,
2756 concat3 (tooldir_prefix, "lib", dir_separator_str),
2759 /* More prefixes are enabled in main, after we read the specs file
2760 and determine whether this is cross-compilation or not. */
2763 /* Then create the space for the vectors and scan again. */
2765 switches = ((struct switchstr *)
2766 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2767 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2770 last_language_n_infiles = -1;
2772 /* This, time, copy the text of each switch and store a pointer
2773 to the copy in the vector of switches.
2774 Store all the infiles in their vector. */
2776 for (i = 1; i < argc; i++)
2778 /* Just skip the switches that were handled by the preceding loop. */
2779 if (! strncmp (argv[i], "-Wa,", 4))
2781 else if (! strncmp (argv[i], "-Wp,", 4))
2783 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2785 else if (! strncmp (argv[i], "-print-file-name=", 17))
2787 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2789 else if (! strcmp (argv[i], "-print-multi-lib"))
2791 else if (! strcmp (argv[i], "-print-multi-directory"))
2793 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2795 /* Compensate for the +e options to the C++ front-end;
2796 they're there simply for cfront call-compatibility. We do
2797 some magic in default_compilers to pass them down properly.
2798 Note we deliberately start at the `+' here, to avoid passing
2799 -e0 or -e1 down into the linker. */
2800 switches[n_switches].part1 = &argv[i][0];
2801 switches[n_switches].args = 0;
2802 switches[n_switches].live_cond = 0;
2803 switches[n_switches].valid = 0;
2806 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2809 /* Split the argument at commas. */
2811 for (j = 4; argv[i][j]; j++)
2812 if (argv[i][j] == ',')
2814 infiles[n_infiles].language = spec_lang;
2815 infiles[n_infiles++].name
2816 = save_string (argv[i] + prev, j - prev);
2819 /* Record the part after the last comma. */
2820 infiles[n_infiles].language = spec_lang;
2821 infiles[n_infiles++].name = argv[i] + prev;
2823 else if (strcmp (argv[i], "-Xlinker") == 0)
2825 infiles[n_infiles].language = spec_lang;
2826 infiles[n_infiles++].name = argv[++i];
2828 else if (strncmp (argv[i], "-l", 2) == 0)
2830 infiles[n_infiles].language = spec_lang;
2831 infiles[n_infiles++].name = argv[i];
2833 else if (argv[i][0] == '-' && argv[i][1] != 0)
2835 register char *p = &argv[i][1];
2836 register int c = *p;
2838 if (c == 'B' || c == 'b' || c == 'V')
2840 /* Skip a separate arg, if any. */
2847 if (p[1] == 0 && i + 1 == argc)
2848 fatal ("argument to `-x' is missing");
2850 spec_lang = argv[++i];
2853 if (! strcmp (spec_lang, "none"))
2854 /* Suppress the warning if -xnone comes after the last input file,
2855 because alternate command interfaces like g++ might find it
2856 useful to place -xnone after each input file. */
2859 last_language_n_infiles = n_infiles;
2862 switches[n_switches].part1 = p;
2863 /* Deal with option arguments in separate argv elements. */
2864 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2865 || WORD_SWITCH_TAKES_ARG (p))
2868 int n_args = WORD_SWITCH_TAKES_ARG (p);
2872 /* Count only the option arguments in separate argv elements. */
2873 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2875 if (i + n_args >= argc)
2876 fatal ("argument to `-%s' is missing", p);
2877 switches[n_switches].args
2878 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2880 switches[n_switches].args[j++] = argv[++i];
2881 /* Null-terminate the vector. */
2882 switches[n_switches].args[j] = 0;
2884 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2886 /* On some systems, ld cannot handle -o or -L without space.
2887 So split the -o or -L from its argument. */
2888 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2889 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2890 switches[n_switches].args[0] = xmalloc (strlen (p));
2891 strcpy (switches[n_switches].args[0], &p[1]);
2892 switches[n_switches].args[1] = 0;
2895 switches[n_switches].args = 0;
2897 switches[n_switches].live_cond = 0;
2898 switches[n_switches].valid = 0;
2899 /* This is always valid, since gcc.c itself understands it. */
2900 if (!strcmp (p, "save-temps"))
2901 switches[n_switches].valid = 1;
2906 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2908 perror_with_name (argv[i]);
2913 infiles[n_infiles].language = spec_lang;
2914 infiles[n_infiles++].name = argv[i];
2919 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2920 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2922 switches[n_switches].part1 = 0;
2923 infiles[n_infiles].name = 0;
2925 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2926 if (gcc_exec_prefix)
2928 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2929 + strlen (spec_machine) + 3);
2930 strcpy (temp, gcc_exec_prefix);
2931 strcat (temp, spec_machine);
2932 strcat (temp, dir_separator_str);
2933 strcat (temp, spec_version);
2934 strcat (temp, dir_separator_str);
2935 gcc_exec_prefix = temp;
2939 /* Process a spec string, accumulating and running commands. */
2941 /* These variables describe the input file name.
2942 input_file_number is the index on outfiles of this file,
2943 so that the output file name can be stored for later use by %o.
2944 input_basename is the start of the part of the input file
2945 sans all directory names, and basename_length is the number
2946 of characters starting there excluding the suffix .c or whatever. */
2948 static char *input_filename;
2949 static int input_file_number;
2950 static int input_filename_length;
2951 static int basename_length;
2952 static char *input_basename;
2953 static char *input_suffix;
2955 /* These are variables used within do_spec and do_spec_1. */
2957 /* Nonzero if an arg has been started and not yet terminated
2958 (with space, tab or newline). */
2959 static int arg_going;
2961 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2962 is a temporary file name. */
2963 static int delete_this_arg;
2965 /* Nonzero means %w has been seen; the next arg to be terminated
2966 is the output file name of this compilation. */
2967 static int this_is_output_file;
2969 /* Nonzero means %s has been seen; the next arg to be terminated
2970 is the name of a library file and we should try the standard
2971 search dirs for it. */
2972 static int this_is_library_file;
2974 /* Nonzero means that the input of this command is coming from a pipe. */
2975 static int input_from_pipe;
2977 /* Process the spec SPEC and run the commands specified therein.
2978 Returns 0 if the spec is successfully processed; -1 if failed. */
2988 delete_this_arg = 0;
2989 this_is_output_file = 0;
2990 this_is_library_file = 0;
2991 input_from_pipe = 0;
2993 value = do_spec_1 (spec, 0, NULL_PTR);
2995 /* Force out any unfinished command.
2996 If -pipe, this forces out the last command if it ended in `|'. */
2999 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3002 if (argbuf_index > 0)
3009 /* Process the sub-spec SPEC as a portion of a larger spec.
3010 This is like processing a whole spec except that we do
3011 not initialize at the beginning and we do not supply a
3012 newline by default at the end.
3013 INSWITCH nonzero means don't process %-sequences in SPEC;
3014 in this case, % is treated as an ordinary character.
3015 This is used while substituting switches.
3016 INSWITCH nonzero also causes SPC not to terminate an argument.
3018 Value is zero unless a line was finished
3019 and the command on that line reported an error. */
3022 do_spec_1 (spec, inswitch, soft_matched_part)
3025 char *soft_matched_part;
3027 register char *p = spec;
3034 /* If substituting a switch, treat all chars like letters.
3035 Otherwise, NL, SPC, TAB and % are special. */
3036 switch (inswitch ? 'a' : c)
3039 /* End of line: finish any pending argument,
3040 then run the pending command if one has been started. */
3043 obstack_1grow (&obstack, 0);
3044 string = obstack_finish (&obstack);
3045 if (this_is_library_file)
3046 string = find_file (string);
3047 store_arg (string, delete_this_arg, this_is_output_file);
3048 if (this_is_output_file)
3049 outfiles[input_file_number] = string;
3053 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3056 for (i = 0; i < n_switches; i++)
3057 if (!strcmp (switches[i].part1, "pipe"))
3060 /* A `|' before the newline means use a pipe here,
3061 but only if -pipe was specified.
3062 Otherwise, execute now and don't pass the `|' as an arg. */
3065 input_from_pipe = 1;
3066 switches[i].valid = 1;
3073 if (argbuf_index > 0)
3079 /* Reinitialize for a new command, and for a new argument. */
3082 delete_this_arg = 0;
3083 this_is_output_file = 0;
3084 this_is_library_file = 0;
3085 input_from_pipe = 0;
3089 /* End any pending argument. */
3092 obstack_1grow (&obstack, 0);
3093 string = obstack_finish (&obstack);
3094 if (this_is_library_file)
3095 string = find_file (string);
3096 store_arg (string, delete_this_arg, this_is_output_file);
3097 if (this_is_output_file)
3098 outfiles[input_file_number] = string;
3102 obstack_1grow (&obstack, c);
3108 /* Space or tab ends an argument if one is pending. */
3111 obstack_1grow (&obstack, 0);
3112 string = obstack_finish (&obstack);
3113 if (this_is_library_file)
3114 string = find_file (string);
3115 store_arg (string, delete_this_arg, this_is_output_file);
3116 if (this_is_output_file)
3117 outfiles[input_file_number] = string;
3119 /* Reinitialize for a new argument. */
3121 delete_this_arg = 0;
3122 this_is_output_file = 0;
3123 this_is_library_file = 0;
3130 fatal ("Invalid specification! Bug in cc.");
3133 obstack_grow (&obstack, input_basename, basename_length);
3138 delete_this_arg = 2;
3141 /* Dump out the directories specified with LIBRARY_PATH,
3142 followed by the absolute directories
3143 that we search for startfiles. */
3146 struct prefix_list *pl = startfile_prefixes.plist;
3148 char *buffer = (char *) xmalloc (bufsize);
3151 for (; pl; pl = pl->next)
3153 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3154 /* Used on systems which record the specified -L dirs
3155 and use them to search for dynamic linking. */
3156 /* Relative directories always come from -B,
3157 and it is better not to use them for searching
3158 at run time. In particular, stage1 loses */
3159 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3162 /* Try subdirectory if there is one. */
3163 if (multilib_dir != NULL)
3167 if (strlen (pl->prefix) + strlen (machine_suffix)
3169 bufsize = (strlen (pl->prefix)
3170 + strlen (machine_suffix)) * 2 + 1;
3171 buffer = (char *) xrealloc (buffer, bufsize);
3172 strcpy (buffer, pl->prefix);
3173 strcat (buffer, machine_suffix);
3174 if (is_directory (buffer, multilib_dir, 1))
3176 do_spec_1 ("-L", 0, NULL_PTR);
3177 #ifdef SPACE_AFTER_L_OPTION
3178 do_spec_1 (" ", 0, NULL_PTR);
3180 do_spec_1 (buffer, 1, NULL_PTR);
3181 do_spec_1 (multilib_dir, 1, NULL_PTR);
3182 /* Make this a separate argument. */
3183 do_spec_1 (" ", 0, NULL_PTR);
3186 if (!pl->require_machine_suffix)
3188 if (is_directory (pl->prefix, multilib_dir, 1))
3190 do_spec_1 ("-L", 0, NULL_PTR);
3191 #ifdef SPACE_AFTER_L_OPTION
3192 do_spec_1 (" ", 0, NULL_PTR);
3194 do_spec_1 (pl->prefix, 1, NULL_PTR);
3195 do_spec_1 (multilib_dir, 1, NULL_PTR);
3196 /* Make this a separate argument. */
3197 do_spec_1 (" ", 0, NULL_PTR);
3203 if (is_directory (pl->prefix, machine_suffix, 1))
3205 do_spec_1 ("-L", 0, NULL_PTR);
3206 #ifdef SPACE_AFTER_L_OPTION
3207 do_spec_1 (" ", 0, NULL_PTR);
3209 do_spec_1 (pl->prefix, 1, NULL_PTR);
3210 /* Remove slash from machine_suffix. */
3211 if (strlen (machine_suffix) >= bufsize)
3212 bufsize = strlen (machine_suffix) * 2 + 1;
3213 buffer = (char *) xrealloc (buffer, bufsize);
3214 strcpy (buffer, machine_suffix);
3215 idx = strlen (buffer);
3216 if (buffer[idx - 1] == '/'
3217 || buffer[idx - 1] == DIR_SEPARATOR)
3218 buffer[idx - 1] = 0;
3219 do_spec_1 (buffer, 1, NULL_PTR);
3220 /* Make this a separate argument. */
3221 do_spec_1 (" ", 0, NULL_PTR);
3224 if (!pl->require_machine_suffix)
3226 if (is_directory (pl->prefix, "", 1))
3228 do_spec_1 ("-L", 0, NULL_PTR);
3229 #ifdef SPACE_AFTER_L_OPTION
3230 do_spec_1 (" ", 0, NULL_PTR);
3232 /* Remove slash from pl->prefix. */
3233 if (strlen (pl->prefix) >= bufsize)
3234 bufsize = strlen (pl->prefix) * 2 + 1;
3235 buffer = (char *) xrealloc (buffer, bufsize);
3236 strcpy (buffer, pl->prefix);
3237 idx = strlen (buffer);
3238 if (buffer[idx - 1] == '/'
3239 || buffer[idx - 1] == DIR_SEPARATOR)
3240 buffer[idx - 1] = 0;
3241 do_spec_1 (buffer, 1, NULL_PTR);
3242 /* Make this a separate argument. */
3243 do_spec_1 (" ", 0, NULL_PTR);
3252 /* {...:%efoo} means report an error with `foo' as error message
3253 and don't execute any more commands for this file. */
3257 while (*p != 0 && *p != '\n') p++;
3258 buf = (char *) alloca (p - q + 1);
3259 strncpy (buf, q, p - q);
3269 if (save_temps_flag)
3271 obstack_grow (&obstack, input_basename, basename_length);
3272 delete_this_arg = 0;
3276 #ifdef MKTEMP_EACH_FILE
3277 /* ??? This has a problem: the total number of
3278 values mktemp can return is limited.
3279 That matters for the names of object files.
3280 In 2.4, do something about that. */
3281 struct temp_name *t;
3283 while (*p == '.' || isalpha (*p))
3286 /* See if we already have an association of %g/%u/%U and
3288 for (t = temp_names; t; t = t->next)
3289 if (t->length == p - suffix
3290 && strncmp (t->suffix, suffix, p - suffix) == 0
3291 && t->unique == (c != 'g'))
3294 /* Make a new association if needed. %u requires one. */
3295 if (t == 0 || c == 'u')
3299 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3300 t->next = temp_names;
3303 t->length = p - suffix;
3304 t->suffix = save_string (suffix, p - suffix);
3305 t->unique = (c != 'g');
3306 choose_temp_base ();
3307 t->filename = temp_filename;
3308 t->filename_length = temp_filename_length;
3311 obstack_grow (&obstack, t->filename, t->filename_length);
3312 delete_this_arg = 1;
3314 obstack_grow (&obstack, temp_filename, temp_filename_length);
3315 if (c == 'u' || c == 'U')
3321 sprintf (buff, "%d", unique);
3322 obstack_grow (&obstack, buff, strlen (buff));
3325 delete_this_arg = 1;
3331 obstack_grow (&obstack, input_filename, input_filename_length);
3337 struct prefix_list *pl = include_prefixes.plist;
3339 if (gcc_exec_prefix)
3341 do_spec_1 ("-iprefix", 1, NULL_PTR);
3342 /* Make this a separate argument. */
3343 do_spec_1 (" ", 0, NULL_PTR);
3344 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3345 do_spec_1 (" ", 0, NULL_PTR);
3348 for (; pl; pl = pl->next)
3350 do_spec_1 ("-isystem", 1, NULL_PTR);
3351 /* Make this a separate argument. */
3352 do_spec_1 (" ", 0, NULL_PTR);
3353 do_spec_1 (pl->prefix, 1, NULL_PTR);
3354 do_spec_1 (" ", 0, NULL_PTR);
3362 for (f = 0; f < n_infiles; f++)
3363 store_arg (outfiles[f], 0, 0);
3368 this_is_library_file = 1;
3372 this_is_output_file = 1;
3377 int index = argbuf_index;
3378 /* Handle the {...} following the %W. */
3381 p = handle_braces (p + 1);
3384 /* If any args were output, mark the last one for deletion
3386 if (argbuf_index != index)
3387 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3391 /* %x{OPTION} records OPTION for %X to output. */
3397 /* Skip past the option value and make a copy. */
3402 string = save_string (p1 + 1, p - p1 - 2);
3404 /* See if we already recorded this option. */
3405 for (i = 0; i < n_linker_options; i++)
3406 if (! strcmp (string, linker_options[i]))
3412 /* This option is new; add it. */
3414 if (!linker_options)
3416 = (char **) xmalloc (n_linker_options * sizeof (char **));
3419 = (char **) xrealloc (linker_options,
3420 n_linker_options * sizeof (char **));
3422 linker_options[n_linker_options - 1] = string;
3426 /* Dump out the options accumulated previously using %x. */
3428 for (i = 0; i < n_linker_options; i++)
3430 do_spec_1 (linker_options[i], 1, NULL_PTR);
3431 /* Make each accumulated option a separate argument. */
3432 do_spec_1 (" ", 0, NULL_PTR);
3436 /* Dump out the options accumulated previously using -Wa,. */
3438 for (i = 0; i < n_assembler_options; i++)
3440 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3441 /* Make each accumulated option a separate argument. */
3442 do_spec_1 (" ", 0, NULL_PTR);
3446 /* Dump out the options accumulated previously using -Wp,. */
3448 for (i = 0; i < n_preprocessor_options; i++)
3450 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3451 /* Make each accumulated option a separate argument. */
3452 do_spec_1 (" ", 0, NULL_PTR);
3456 /* Here are digits and numbers that just process
3457 a certain constant string as a spec. */
3460 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3466 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3472 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3478 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3484 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3490 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3496 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3502 value = do_spec_1 (link_spec, 0, NULL_PTR);
3508 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3514 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3521 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3525 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3529 if (! strncmp (y, "-D", 2))
3530 /* Copy the whole option. */
3531 while (*y && *y != ' ' && *y != '\t')
3533 else if (*y == ' ' || *y == '\t')
3534 /* Copy whitespace to the result. */
3536 /* Don't copy other options. */
3543 value = do_spec_1 (buf, 0, NULL_PTR);
3551 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3555 /* Copy all of CPP_PREDEFINES into BUF,
3556 but put __ after every -D and at the end of each arg. */
3560 if (! strncmp (y, "-D", 2))
3568 || (*(y+1) != '_' && ! isupper (*(y+1))))
3570 /* Stick __ at front of macro name. */
3573 /* Arrange to stick __ at the end as well. */
3577 /* Copy the macro name. */
3578 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3587 /* Copy the value given, if any. */
3588 while (*y && *y != ' ' && *y != '\t')
3591 else if (*y == ' ' || *y == '\t')
3592 /* Copy whitespace to the result. */
3594 /* Don't copy -A options */
3600 /* Copy all of CPP_PREDEFINES into BUF,
3601 but put __ after every -D. */
3605 if (! strncmp (y, "-D", 2))
3610 || (*(y+1) != '_' && ! isupper (*(y+1))))
3612 /* Stick -D__ at front of macro name. */
3618 /* Copy the macro name. */
3619 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3622 /* Copy the value given, if any. */
3623 while (*y && *y != ' ' && *y != '\t')
3628 /* Do not copy this macro - we have just done it before */
3629 while (*y && *y != ' ' && *y != '\t')
3633 else if (*y == ' ' || *y == '\t')
3634 /* Copy whitespace to the result. */
3636 /* Don't copy -A options */
3642 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3646 if (! strncmp (y, "-A", 2))
3647 /* Copy the whole option. */
3648 while (*y && *y != ' ' && *y != '\t')
3650 else if (*y == ' ' || *y == '\t')
3651 /* Copy whitespace to the result. */
3653 /* Don't copy other options. */
3660 value = do_spec_1 (buf, 0, NULL_PTR);
3667 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3672 /* Here we define characters other than letters and digits. */
3675 p = handle_braces (p);
3681 obstack_1grow (&obstack, '%');
3685 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3686 do_spec_1 (" ", 0, NULL_PTR);
3689 /* Process a string found as the value of a spec given by name.
3690 This feature allows individual machine descriptions
3691 to add and use their own specs.
3692 %[...] modifies -D options the way %P does;
3693 %(...) uses the spec unmodified. */
3698 struct spec_list *sl;
3701 /* The string after the S/P is the name of a spec that is to be
3703 while (*p && *p != ')' && *p != ']')
3706 /* See if it's in the list */
3707 for (len = p - name, sl = specs; sl; sl = sl->next)
3708 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3718 value = do_spec_1 (name, 0, NULL_PTR);
3724 char *x = (char *) alloca (strlen (name) * 2 + 1);
3728 /* Copy all of NAME into BUF, but put __ after
3729 every -D and at the end of each arg, */
3732 if (! strncmp (y, "-D", 2))
3740 else if (*y == ' ' || *y == 0)
3754 value = do_spec_1 (buf, 0, NULL_PTR);
3760 /* Discard the closing paren or bracket. */
3768 int c1 = *p++; /* Select first or second version number. */
3769 char *v = compiler_version;
3771 /* If desired, advance to second version number. */
3774 /* Set P after the first period. */
3775 while (*v != 0 && *v != ' ' && *v != '.')
3780 /* Set Q at the next period or at the end. */
3782 while (*q != 0 && *q != ' ' && *q != '.')
3784 /* Empty string means zero. */
3790 /* Put that part into the command. */
3791 obstack_grow (&obstack, v, q - v);
3797 if (input_from_pipe)
3798 do_spec_1 ("-", 0, NULL_PTR);
3807 /* Backslash: treat next character as ordinary. */
3812 /* Ordinary character: put it into the current argument. */
3813 obstack_1grow (&obstack, c);
3817 return 0; /* End of string */
3820 /* Return 0 if we call do_spec_1 and that returns -1. */
3833 /* A `|' after the open-brace means,
3834 if the test fails, output a single minus sign rather than nothing.
3835 This is used in %{|!pipe:...}. */
3839 /* A `!' after the open-brace negates the condition:
3840 succeed if the specified switch is not present. */
3844 /* A `.' after the open-brace means test against the current suffix. */
3854 while (*p != ':' && *p != '}') p++;
3857 register int count = 1;
3875 int found = (input_suffix != 0
3876 && strlen (input_suffix) == p - filter
3877 && strncmp (input_suffix, filter, p - filter) == 0);
3883 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3888 else if (p[-1] == '*' && p[0] == '}')
3890 /* Substitute all matching switches as separate args. */
3893 for (i = 0; i < n_switches; i++)
3894 if (!strncmp (switches[i].part1, filter, p - filter)
3895 && check_live_switch (i, p - filter))
3900 /* Test for presence of the specified switch. */
3904 /* If name specified ends in *, as in {x*:...},
3905 check for %* and handle that case. */
3906 if (p[-1] == '*' && !negate)
3911 /* First see whether we have %*. */
3915 if (*r == '%' && r[1] == '*')
3919 /* If we do, handle that case. */
3922 /* Substitute all matching switches as separate args.
3923 But do this by substituting for %*
3924 in the text that follows the colon. */
3926 unsigned hard_match_len = p - filter - 1;
3927 char *string = save_string (p + 1, q - p - 2);
3929 for (i = 0; i < n_switches; i++)
3930 if (!strncmp (switches[i].part1, filter, hard_match_len)
3931 && check_live_switch (i, -1))
3933 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3934 /* Pass any arguments this switch has. */
3942 /* If name specified ends in *, as in {x*:...},
3943 check for presence of any switch name starting with x. */
3946 for (i = 0; i < n_switches; i++)
3948 unsigned hard_match_len = p - filter - 1;
3950 if (!strncmp (switches[i].part1, filter, hard_match_len)
3951 && check_live_switch (i, hard_match_len))
3957 /* Otherwise, check for presence of exact name specified. */
3960 for (i = 0; i < n_switches; i++)
3962 if (!strncmp (switches[i].part1, filter, p - filter)
3963 && switches[i].part1[p - filter] == 0
3964 && check_live_switch (i, -1))
3972 /* If it is as desired (present for %{s...}, absent for %{-s...})
3973 then substitute either the switch or the specified
3974 conditional text. */
3975 if (present != negate)
3983 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3989 /* Here if a %{|...} conditional fails: output a minus sign,
3990 which means "standard output" or "standard input". */
3991 do_spec_1 ("-", 0, NULL_PTR);
3998 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3999 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4000 spec, or -1 if either exact match or %* is used.
4002 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4003 whose value does not begin with "no-" is obsoleted by the same value
4004 with the "no-", similarly for a switch with the "no-" prefix. */
4007 check_live_switch (switchnum, prefix_length)
4011 char *name = switches[switchnum].part1;
4014 /* In the common case of {<at-most-one-letter>*}, a negating
4015 switch would always match, so ignore that case. We will just
4016 send the conflicting switches to the compiler phase. */
4017 if (prefix_length >= 0 && prefix_length <= 1)
4020 /* If we already processed this switch and determined if it was
4021 live or not, return our past determination. */
4022 if (switches[switchnum].live_cond != 0)
4023 return switches[switchnum].live_cond > 0;
4025 /* Now search for duplicate in a manner that depends on the name. */
4029 for (i = switchnum + 1; i < n_switches; i++)
4030 if (switches[i].part1[0] == 'O')
4032 switches[switchnum].valid = 1;
4033 switches[switchnum].live_cond = -1;
4038 case 'W': case 'f': case 'm':
4039 if (! strncmp (name + 1, "no-", 3))
4041 /* We have Xno-YYY, search for XYYY. */
4042 for (i = switchnum + 1; i < n_switches; i++)
4043 if (switches[i].part1[0] == name[0]
4044 && ! strcmp (&switches[i].part1[1], &name[4]))
4046 switches[switchnum].valid = 1;
4047 switches[switchnum].live_cond = -1;
4053 /* We have XYYY, search for Xno-YYY. */
4054 for (i = switchnum + 1; i < n_switches; i++)
4055 if (switches[i].part1[0] == name[0]
4056 && switches[i].part1[1] == 'n'
4057 && switches[i].part1[2] == 'o'
4058 && switches[i].part1[3] == '-'
4059 && !strcmp (&switches[i].part1[4], &name[1]))
4061 switches[switchnum].valid = 1;
4062 switches[switchnum].live_cond = -1;
4069 /* Otherwise the switch is live. */
4070 switches[switchnum].live_cond = 1;
4074 /* Pass a switch to the current accumulating command
4075 in the same form that we received it.
4076 SWITCHNUM identifies the switch; it is an index into
4077 the vector of switches gcc received, which is `switches'.
4078 This cannot fail since it never finishes a command line.
4080 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4083 give_switch (switchnum, omit_first_word)
4085 int omit_first_word;
4087 if (!omit_first_word)
4089 do_spec_1 ("-", 0, NULL_PTR);
4090 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4092 do_spec_1 (" ", 0, NULL_PTR);
4093 if (switches[switchnum].args != 0)
4096 for (p = switches[switchnum].args; *p; p++)
4098 do_spec_1 (*p, 1, NULL_PTR);
4099 do_spec_1 (" ", 0, NULL_PTR);
4102 switches[switchnum].valid = 1;
4105 /* Search for a file named NAME trying various prefixes including the
4106 user's -B prefix and some standard ones.
4107 Return the absolute file name found. If nothing is found, return NAME. */
4115 /* Try multilib_dir if it is defined. */
4116 if (multilib_dir != NULL)
4120 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4121 strcpy (try, multilib_dir);
4122 strcat (try, dir_separator_str);
4125 newname = find_a_file (&startfile_prefixes, try, R_OK);
4127 /* If we don't find it in the multi library dir, then fall
4128 through and look for it in the normal places. */
4129 if (newname != NULL)
4133 newname = find_a_file (&startfile_prefixes, name, R_OK);
4134 return newname ? newname : name;
4137 /* Determine whether a directory exists. If LINKER, return 0 for
4138 certain fixed names not needed by the linker. If not LINKER, it is
4139 only important to return 0 if the host machine has a small ARG_MAX
4143 is_directory (path1, path2, linker)
4148 int len1 = strlen (path1);
4149 int len2 = strlen (path2);
4150 char *path = (char *) alloca (3 + len1 + len2);
4154 #ifndef SMALL_ARG_MAX
4159 /* Construct the path from the two parts. Ensure the string ends with "/.".
4160 The resulting path will be a directory even if the given path is a
4162 bcopy (path1, path, len1);
4163 bcopy (path2, path + len1, len2);
4164 cp = path + len1 + len2;
4165 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4166 *cp++ = DIR_SEPARATOR;
4170 /* Exclude directories that the linker is known to search. */
4173 && strcmp (path, concat4 (dir_separator_str, "lib",
4174 dir_separator_str, ".")) == 0)
4176 && strcmp (path, concat6 (dir_separator_str, "usr",
4177 dir_separator_str, "lib",
4178 dir_separator_str, ".")) == 0)))
4181 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4184 /* On fatal signals, delete all the temporary files. */
4187 fatal_error (signum)
4190 signal (signum, SIG_DFL);
4191 delete_failure_queue ();
4192 delete_temp_files ();
4193 /* Get the same signal again, this time not handled,
4194 so its normal effect occurs. */
4195 kill (getpid (), signum);
4206 int linker_was_run = 0;
4207 char *explicit_link_files;
4211 p = argv[0] + strlen (argv[0]);
4212 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4215 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4216 signal (SIGINT, fatal_error);
4218 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4219 signal (SIGHUP, fatal_error);
4221 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4222 signal (SIGTERM, fatal_error);
4224 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4225 signal (SIGPIPE, fatal_error);
4229 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4231 obstack_init (&obstack);
4233 /* Set up to remember the pathname of gcc and any options
4234 needed for collect. We use argv[0] instead of programname because
4235 we need the complete pathname. */
4236 obstack_init (&collect_obstack);
4237 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4238 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4239 putenv (obstack_finish (&collect_obstack));
4241 /* Choose directory for temp files. */
4243 choose_temp_base ();
4245 /* Make a table of what switches there are (switches, n_switches).
4246 Make a table of specified input files (infiles, n_infiles).
4247 Decode switches that are handled locally. */
4249 process_command (argc, argv);
4251 /* Initialize the vector of specs to just the default.
4252 This means one element containing 0s, as a terminator. */
4254 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4255 bcopy ((char *) default_compilers, (char *) compilers,
4256 sizeof default_compilers);
4257 n_compilers = n_default_compilers;
4259 /* Read specs from a file if there is one. */
4261 machine_suffix = concat4 (spec_machine, dir_separator_str,
4262 spec_version, dir_separator_str);
4263 just_machine_suffix = concat (spec_machine, dir_separator_str);
4265 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4266 /* Read the specs file unless it is a default one. */
4267 if (specs_file != 0 && strcmp (specs_file, "specs"))
4268 read_specs (specs_file);
4270 /* If not cross-compiling, look for startfiles in the standard places. */
4271 /* The fact that these are done here, after reading the specs file,
4272 means that it cannot be found in these directories.
4273 But that's okay. It should never be there anyway. */
4276 #ifdef MD_EXEC_PREFIX
4277 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4278 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4281 #ifdef MD_STARTFILE_PREFIX
4282 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4285 #ifdef MD_STARTFILE_PREFIX_1
4286 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4289 /* If standard_startfile_prefix is relative, base it on
4290 standard_exec_prefix. This lets us move the installed tree
4291 as a unit. If GCC_EXEC_PREFIX is defined, base
4292 standard_startfile_prefix on that as well. */
4293 if (*standard_startfile_prefix == '/'
4294 || *standard_startfile_prefix == DIR_SEPARATOR)
4295 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4299 if (gcc_exec_prefix)
4300 add_prefix (&startfile_prefixes,
4301 concat (gcc_exec_prefix, standard_startfile_prefix),
4303 add_prefix (&startfile_prefixes,
4304 concat3 (standard_exec_prefix,
4306 standard_startfile_prefix),
4310 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4312 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4314 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4315 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4319 /* Now we have the specs.
4320 Set the `valid' bits for switches that match anything in any spec. */
4322 validate_all_switches ();
4324 /* Now that we have the switches and the specs, set
4325 the subdirectory based on the options. */
4326 set_multilib_dir ();
4328 /* Warn about any switches that no pass was interested in. */
4330 for (i = 0; i < n_switches; i++)
4331 if (! switches[i].valid)
4332 error ("unrecognized option `-%s'", switches[i].part1);
4334 /* Obey some of the options. */
4336 if (print_file_name)
4338 printf ("%s\n", find_file (print_file_name));
4342 if (print_prog_name)
4344 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4345 printf ("%s\n", (newname ? newname : print_prog_name));
4349 if (print_multi_lib)
4351 print_multilib_info ();
4355 if (print_multi_directory)
4357 if (multilib_dir == NULL)
4360 printf ("%s\n", multilib_dir);
4366 if (! strcmp (version_string, compiler_version))
4367 fprintf (stderr, "gcc version %s\n", version_string);
4369 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4370 version_string, compiler_version);
4377 fatal ("No input files");
4379 /* Make a place to record the compiler output file names
4380 that correspond to the input files. */
4382 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4383 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4385 /* Record which files were specified explicitly as link input. */
4387 explicit_link_files = xmalloc (n_infiles);
4388 bzero (explicit_link_files, n_infiles);
4390 for (i = 0; i < n_infiles; i++)
4392 register struct compiler *cp = 0;
4393 int this_file_error = 0;
4395 /* Tell do_spec what to substitute for %i. */
4397 input_filename = infiles[i].name;
4398 input_filename_length = strlen (input_filename);
4399 input_file_number = i;
4401 /* Use the same thing in %o, unless cp->spec says otherwise. */
4403 outfiles[i] = input_filename;
4405 /* Figure out which compiler from the file's suffix. */
4407 cp = lookup_compiler (infiles[i].name, input_filename_length,
4408 infiles[i].language);
4412 /* Ok, we found an applicable compiler. Run its spec. */
4413 /* First say how much of input_filename to substitute for %b */
4417 input_basename = input_filename;
4418 for (p = input_filename; *p; p++)
4419 if (*p == '/' || *p == DIR_SEPARATOR)
4420 input_basename = p + 1;
4422 /* Find a suffix starting with the last period,
4423 and set basename_length to exclude that suffix. */
4424 basename_length = strlen (input_basename);
4425 p = input_basename + basename_length;
4426 while (p != input_basename && *p != '.') --p;
4427 if (*p == '.' && p != input_basename)
4429 basename_length = p - input_basename;
4430 input_suffix = p + 1;
4436 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4438 len += strlen (cp->spec[j]);
4440 p = (char *) xmalloc (len + 1);
4443 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4446 strcpy (p + len, cp->spec[j]);
4447 len += strlen (cp->spec[j]);
4450 value = do_spec (p);
4453 this_file_error = 1;
4456 /* If this file's name does not contain a recognized suffix,
4457 record it as explicit linker input. */
4460 explicit_link_files[i] = 1;
4462 /* Clear the delete-on-failure queue, deleting the files in it
4463 if this compilation failed. */
4465 if (this_file_error)
4467 delete_failure_queue ();
4470 /* If this compilation succeeded, don't delete those files later. */
4471 clear_failure_queue ();
4474 /* Run ld to link all the compiler output files. */
4476 if (error_count == 0)
4478 int tmp = execution_count;
4482 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4484 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4485 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4487 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4489 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4490 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4493 for (i = 0; i < n_switches; i++)
4497 obstack_grow (&collect_obstack, " ", 1);
4500 obstack_grow (&collect_obstack, "-", 1);
4501 obstack_grow (&collect_obstack, switches[i].part1,
4502 strlen (switches[i].part1));
4504 for (args = switches[i].args; args && *args; args++)
4506 obstack_grow (&collect_obstack, " ", 1);
4507 obstack_grow (&collect_obstack, *args, strlen (*args));
4510 obstack_grow (&collect_obstack, "\0", 1);
4511 putenv (obstack_finish (&collect_obstack));
4513 value = do_spec (link_command_spec);
4516 linker_was_run = (tmp != execution_count);
4519 /* Warn if a -B option was specified but the prefix was never used. */
4520 unused_prefix_warnings (&exec_prefixes);
4521 unused_prefix_warnings (&startfile_prefixes);
4523 /* If options said don't run linker,
4524 complain about input files to be given to the linker. */
4526 if (! linker_was_run && error_count == 0)
4527 for (i = 0; i < n_infiles; i++)
4528 if (explicit_link_files[i])
4529 error ("%s: linker input file unused since linking not done",
4532 /* Delete some or all of the temporary files we made. */
4535 delete_failure_queue ();
4536 delete_temp_files ();
4538 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4543 /* Find the proper compilation spec for the file name NAME,
4544 whose length is LENGTH. LANGUAGE is the specified language,
4545 or 0 if none specified. */
4547 static struct compiler *
4548 lookup_compiler (name, length, language)
4553 struct compiler *cp;
4555 /* Look for the language, if one is spec'd. */
4558 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4562 if (cp->suffix[0] == '@'
4563 && !strcmp (cp->suffix + 1, language))
4567 error ("language %s not recognized", language);
4570 /* Look for a suffix. */
4571 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4573 if (/* The suffix `-' matches only the file name `-'. */
4574 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4576 (strlen (cp->suffix) < length
4577 /* See if the suffix matches the end of NAME. */
4579 && (!strcmp (cp->suffix,
4580 name + length - strlen (cp->suffix))
4581 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4582 && !strcasecmp (cp->suffix,
4583 name + length - strlen (cp->suffix)))))
4585 && !strcmp (cp->suffix,
4586 name + length - strlen (cp->suffix))))
4589 if (cp->spec[0][0] == '@')
4591 struct compiler *new;
4592 /* An alias entry maps a suffix to a language.
4593 Search for the language; pass 0 for NAME and LENGTH
4594 to avoid infinite recursion if language not found.
4595 Construct the new compiler spec. */
4596 language = cp->spec[0] + 1;
4597 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4598 new->suffix = cp->suffix;
4599 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4600 (char *) new->spec, sizeof new->spec);
4603 /* A non-alias entry: return it. */
4615 register char *value = (char *) malloc (size);
4617 fatal ("virtual memory exhausted");
4622 xrealloc (ptr, size)
4626 register char *value = (char *) realloc (ptr, size);
4628 fatal ("virtual memory exhausted");
4632 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4638 int len1 = strlen (s1);
4639 int len2 = strlen (s2);
4640 char *result = xmalloc (len1 + len2 + 1);
4642 strcpy (result, s1);
4643 strcpy (result + len1, s2);
4644 *(result + len1 + len2) = 0;
4650 concat3 (s1, s2, s3)
4653 return concat (concat (s1, s2), s3);
4657 concat4 (s1, s2, s3, s4)
4658 char *s1, *s2, *s3, *s4;
4660 return concat (concat (s1, s2), concat (s3, s4));
4664 concat6 (s1, s2, s3, s4, s5, s6)
4665 char *s1, *s2, *s3, *s4, *s5, *s6;
4667 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4671 save_string (s, len)
4675 register char *result = xmalloc (len + 1);
4677 bcopy (s, result, len);
4683 pfatal_with_name (name)
4688 if (errno < sys_nerr)
4689 s = concat ("%s: ", sys_errlist[errno]);
4691 s = "cannot open %s";
4696 perror_with_name (name)
4701 if (errno < sys_nerr)
4702 s = concat ("%s: ", sys_errlist[errno]);
4704 s = "cannot open %s";
4714 if (errno < sys_nerr)
4715 s = concat ("installation problem, cannot exec %s: ", sys_errlist[errno]);
4717 s = "installation problem, cannot exec %s";
4721 /* More 'friendly' abort that prints the line and file.
4722 config.h can #define abort fancy_abort if you like that sort of thing. */
4727 fatal ("Internal gcc abort.");
4732 /* Output an error message and exit */
4735 fatal VPROTO((char *format, ...))
4742 VA_START (ap, format);
4745 format = va_arg (ap, char*);
4748 fprintf (stderr, "%s: ", programname);
4749 vfprintf (stderr, format, ap);
4751 fprintf (stderr, "\n");
4752 delete_temp_files ();
4757 error VPROTO((char *format, ...))
4764 VA_START (ap, format);
4767 format = va_arg (ap, char*);
4770 fprintf (stderr, "%s: ", programname);
4771 vfprintf (stderr, format, ap);
4774 fprintf (stderr, "\n");
4777 #else /* not HAVE_VPRINTF */
4780 fatal (msg, arg1, arg2)
4781 char *msg, *arg1, *arg2;
4783 error (msg, arg1, arg2);
4784 delete_temp_files ();
4789 error (msg, arg1, arg2)
4790 char *msg, *arg1, *arg2;
4792 fprintf (stderr, "%s: ", programname);
4793 fprintf (stderr, msg, arg1, arg2);
4794 fprintf (stderr, "\n");
4797 #endif /* not HAVE_VPRINTF */
4801 validate_all_switches ()
4803 struct compiler *comp;
4806 struct spec_list *spec;
4808 for (comp = compilers; comp->spec[0]; comp++)
4811 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4815 if (c == '%' && *p == '{')
4816 /* We have a switch spec. */
4817 validate_switches (p + 1);
4821 /* look through the linked list of extra specs read from the specs file */
4822 for (spec = specs; spec ; spec = spec->next)
4826 if (c == '%' && *p == '{')
4827 /* We have a switch spec. */
4828 validate_switches (p + 1);
4831 p = link_command_spec;
4833 if (c == '%' && *p == '{')
4834 /* We have a switch spec. */
4835 validate_switches (p + 1);
4837 /* Now notice switches mentioned in the machine-specific specs. */
4841 if (c == '%' && *p == '{')
4842 /* We have a switch spec. */
4843 validate_switches (p + 1);
4847 if (c == '%' && *p == '{')
4848 /* We have a switch spec. */
4849 validate_switches (p + 1);
4853 if (c == '%' && *p == '{')
4854 /* We have a switch spec. */
4855 validate_switches (p + 1);
4857 p = signed_char_spec;
4859 if (c == '%' && *p == '{')
4860 /* We have a switch spec. */
4861 validate_switches (p + 1);
4865 if (c == '%' && *p == '{')
4866 /* We have a switch spec. */
4867 validate_switches (p + 1);
4871 if (c == '%' && *p == '{')
4872 /* We have a switch spec. */
4873 validate_switches (p + 1);
4877 if (c == '%' && *p == '{')
4878 /* We have a switch spec. */
4879 validate_switches (p + 1);
4883 if (c == '%' && *p == '{')
4884 /* We have a switch spec. */
4885 validate_switches (p + 1);
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);
4900 /* Look at the switch-name that comes after START
4901 and mark as valid all supplied switches that match it. */
4904 validate_switches (start)
4907 register char *p = start;
4922 while (*p != ':' && *p != '}') p++;
4926 else if (p[-1] == '*')
4928 /* Mark all matching switches as valid. */
4930 for (i = 0; i < n_switches; i++)
4931 if (!strncmp (switches[i].part1, filter, p - filter))
4932 switches[i].valid = 1;
4936 /* Mark an exact matching switch as valid. */
4937 for (i = 0; i < n_switches; i++)
4939 if (!strncmp (switches[i].part1, filter, p - filter)
4940 && switches[i].part1[p - filter] == 0)
4941 switches[i].valid = 1;
4946 /* Check whether a particular argument was used. */
4955 for (i = 0; i < n_switches; i++)
4956 if (! strncmp (switches[i].part1, p, len)
4957 && strlen (switches[i].part1) == len)
4962 /* Work out the subdirectory to use based on the
4963 options. The format of multilib_select is a list of elements.
4964 Each element is a subdirectory name followed by a list of options
4965 followed by a semicolon. gcc will consider each line in turn. If
4966 none of the options beginning with an exclamation point are
4967 present, and all of the other options are present, that
4968 subdirectory will be used. */
4973 char *p = multilib_select;
4975 char *this_path, *this_arg;
4980 /* Ignore newlines. */
4987 /* Get the initial path. */
4995 this_path_len = p - this_path;
4997 /* Check the arguments. */
5012 while (*p != ' ' && *p != ';')
5019 if (*this_arg == '!')
5020 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5022 failed = ! used_arg (this_arg, p - this_arg);
5030 if (this_path_len != 1
5031 || this_path[0] != '.')
5033 multilib_dir = xmalloc (this_path_len + 1);
5034 strncpy (multilib_dir, this_path, this_path_len);
5035 multilib_dir[this_path_len] = '\0';
5044 /* Print out the multiple library subdirectory selection
5045 information. This prints out a series of lines. Each line looks
5046 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5047 required. Only the desired options are printed out, the negative
5048 matches. The options are print without a leading dash. There are
5049 no spaces to make it easy to use the information in the shell.
5050 Each subdirectory is printed only once. This assumes the ordering
5051 generated by the genmultilib script. */
5054 print_multilib_info ()
5056 char *p = multilib_select;
5057 char *last_path, *this_path;
5058 int last_path_len, skip, use_arg;
5062 /* Ignore newlines. */
5069 /* Get the initial path. */
5078 /* If this is a duplicate, skip it. */
5079 skip = (p - this_path == last_path_len
5080 && ! strncmp (last_path, this_path, last_path_len));
5082 last_path = this_path;
5083 last_path_len = p - this_path;
5089 for (p1 = last_path; p1 < p; p1++)
5108 use_arg = *p != '!';
5113 while (*p != ' ' && *p != ';')