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 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
366 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
367 %c process SIGNED_CHAR_SPEC as a spec.
368 %C process CPP_SPEC as a spec. A capital C is actually used here.
369 %1 process CC1_SPEC as a spec.
370 %2 process CC1PLUS_SPEC as a spec.
371 %| output "-" if the input for the current command is coming from a pipe.
372 %* substitute the variable part of a matched option. (See below.)
373 Note that each comma in the substituted string is replaced by
375 %{S} substitutes the -S switch, if that switch was given to CC.
376 If that switch was not specified, this substitutes nothing.
377 Here S is a metasyntactic variable.
378 %{S*} substitutes all the switches specified to CC whose names start
379 with -S. This is used for -o, -D, -I, etc; switches that take
380 arguments. CC considers `-o foo' as being one switch whose
381 name starts with `o'. %{o*} would substitute this text,
382 including the space; thus, two arguments would be generated.
383 %{S*:X} substitutes X if one or more switches whose names start with -S are
384 specified to CC. Note that the tail part of the -S option
385 (i.e. the part matched by the `*') will be substituted for each
386 occurrence of %* within X.
387 %{S:X} substitutes X, but only if the -S switch was given to CC.
388 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
389 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
390 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
391 %{.S:X} substitutes X, but only if processing a file with suffix S.
392 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
393 %(Spec) processes a specification defined in a specs file as *Spec:
394 %[Spec] as above, but put __ around -D arguments
396 The conditional text X in a %{S:X} or %{!S:X} construct may contain
397 other nested % constructs or spaces, or even newlines. They are
398 processed as usual, as described above.
400 The -O, -f, -m, and -W switches are handled specifically in these
401 constructs. If another value of -O or the negated form of a -f, -m, or
402 -W switch is found later in the command line, the earlier switch
403 value is ignored, except with {S*} where S is just one letter; this
404 passes all matching options.
406 The character | is used to indicate that a command should be piped to
407 the following command, but only if -pipe is specified.
409 Note that it is built into CC which switches take arguments and which
410 do not. You might think it would be useful to generalize this to
411 allow each compiler's spec to say which switches take arguments. But
412 this cannot be done in a consistent fashion. CC cannot even decide
413 which input files have been specified without knowing which switches
414 take arguments, and it must know which input files to compile in order
415 to tell which compilers to run.
417 CC also knows implicitly that arguments starting in `-l' are to be
418 treated as compiler output files, and passed to the linker in their
419 proper position among the other output files. */
421 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
423 /* config.h can define ASM_SPEC to provide extra args to the assembler
424 or extra switch-translations. */
429 /* config.h can define ASM_FINAL_SPEC to run a post processor after
430 the assembler has run. */
431 #ifndef ASM_FINAL_SPEC
432 #define ASM_FINAL_SPEC ""
435 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
436 or extra switch-translations. */
441 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
442 or extra switch-translations. */
447 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
448 or extra switch-translations. */
450 #define CC1PLUS_SPEC ""
453 /* config.h can define LINK_SPEC to provide extra args to the linker
454 or extra switch-translations. */
459 /* config.h can define LIB_SPEC to override the default libraries. */
461 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
464 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
465 #ifndef STARTFILE_SPEC
466 #define STARTFILE_SPEC \
467 "%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}"
470 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
471 Make the string nonempty to require spaces there. */
472 #ifndef SWITCHES_NEED_SPACES
473 #define SWITCHES_NEED_SPACES ""
476 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
478 #define ENDFILE_SPEC ""
481 /* This spec is used for telling cpp whether char is signed or not. */
482 #ifndef SIGNED_CHAR_SPEC
483 /* Use #if rather than ?:
484 because MIPS C compiler rejects like ?: in initializers. */
485 #if DEFAULT_SIGNED_CHAR
486 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
488 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
492 /* MULTILIB_SELECT comes from multilib.h. It gives a
493 string interpreted by set_multilib_dir to select a library
494 subdirectory based on the compiler options. */
495 #ifndef MULTILIB_SELECT
496 #define MULTILIB_SELECT ". ;"
499 static char *cpp_spec = CPP_SPEC;
500 static char *cpp_predefines = CPP_PREDEFINES;
501 static char *cc1_spec = CC1_SPEC;
502 static char *cc1plus_spec = CC1PLUS_SPEC;
503 static char *signed_char_spec = SIGNED_CHAR_SPEC;
504 static char *asm_spec = ASM_SPEC;
505 static char *asm_final_spec = ASM_FINAL_SPEC;
506 static char *link_spec = LINK_SPEC;
507 static char *lib_spec = LIB_SPEC;
508 static char *endfile_spec = ENDFILE_SPEC;
509 static char *startfile_spec = STARTFILE_SPEC;
510 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
511 static char *multilib_select = MULTILIB_SELECT;
513 /* This defines which switch letters take arguments. */
515 #ifndef SWITCH_TAKES_ARG
516 #define SWITCH_TAKES_ARG(CHAR) \
517 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
518 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
519 || (CHAR) == 'I' || (CHAR) == 'm' \
520 || (CHAR) == 'L' || (CHAR) == 'A')
523 /* This defines which multi-letter switches take arguments. */
525 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
526 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
527 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
528 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
529 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
530 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
531 || !strcmp (STR, "isystem"))
533 #ifndef WORD_SWITCH_TAKES_ARG
534 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
537 /* Record the mapping from file suffixes for compilation specs. */
541 char *suffix; /* Use this compiler for input files
542 whose names end in this suffix. */
544 char *spec[4]; /* To use this compiler, concatenate these
545 specs and pass to do_spec. */
548 /* Pointer to a vector of `struct compiler' that gives the spec for
549 compiling a file, based on its suffix.
550 A file that does not end in any of these suffixes will be passed
551 unchanged to the loader and nothing else will be done to it.
553 An entry containing two 0s is used to terminate the vector.
555 If multiple entries match a file, the last matching one is used. */
557 static struct compiler *compilers;
559 /* Number of entries in `compilers', not counting the null terminator. */
561 static int n_compilers;
563 /* The default list of file name suffixes and their compilation specs. */
565 static struct compiler default_compilers[] =
569 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
570 %{C:%{!E:%eGNU C does not support -C without using -E}}\
571 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
572 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
573 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
574 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
575 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
576 %{traditional-cpp:-traditional}\
577 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
578 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
579 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
580 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
581 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
582 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
584 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
585 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
586 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
587 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
588 %{!pipe:%g.s} %A\n }}}}"},
590 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
591 %{C:%{!E:%eGNU C does not support -C without using -E}}\
592 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
593 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
594 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
595 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
596 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
597 %{traditional-cpp:-traditional}\
598 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
600 %{!E:%e-E required when input is from standard input}"},
601 {".m", "@objective-c"},
603 "cpp -lang-objc %{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__OBJC__ -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\
612 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
613 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
614 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
615 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
616 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
617 -lang-objc %{gen-decls} \
619 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
620 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
621 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
622 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 %{!pipe:%g.s} %A\n }}}}"},
626 "%{!E:%eCompilation of header file requested} \
627 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
628 %{C:%{!E:%eGNU C does not support -C without using -E}}\
629 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
630 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
631 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
632 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
633 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
634 %{traditional-cpp:-traditional}\
635 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
643 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
644 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
645 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
646 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
647 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
648 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
649 %{traditional-cpp:-traditional} %{trigraphs}\
650 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
651 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
652 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
653 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
654 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
655 %{traditional} %{v:-version} %{pg:-p} %{p}\
656 %{f*} %{+e*} %{aux-info*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
659 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
660 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
661 %{!pipe:%g.s} %A\n }}}}"},
662 {".i", "@cpp-output"},
664 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
665 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
666 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
668 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
669 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
670 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
671 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
672 %{!pipe:%g.s} %A\n }}}}"},
673 {".ii", "@c++-cpp-output"},
675 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
676 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
677 %{traditional} %{v:-version} %{pg:-p} %{p}\
678 %{f*} %{+e*} %{aux-info*}\
679 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
680 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
681 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
682 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
683 %{!pipe:%g.s} %A\n }}}}"},
684 {".s", "@assembler"},
686 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
687 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
689 {".S", "@assembler-with-cpp"},
690 {"@assembler-with-cpp",
691 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
692 %{C:%{!E:%eGNU C does not support -C without using -E}}\
693 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
694 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
695 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
696 %{traditional-cpp:-traditional}\
697 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
698 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
699 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
700 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
701 %{!pipe:%g.s} %A\n }}}}"},
706 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
707 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
709 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
710 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
711 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
712 %{c:%W{o*}%{!o*:-o %w%b.o}}\
713 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
714 /* Mark end of table */
718 /* Number of elements in default_compilers, not counting the terminator. */
720 static int n_default_compilers
721 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
723 /* Here is the spec for running the linker, after compiling all files. */
725 /* -u* was put back because both BSD and SysV seem to support it. */
726 /* %{static:} simply prevents an error message if the target machine
727 doesn't handle -static. */
728 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
729 scripts which exist in user specified directories, or in standard
731 #ifdef LINK_LIBGCC_SPECIAL_1
732 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
733 static char *link_command_spec = "\
735 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
736 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
737 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
738 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
740 #ifdef LINK_LIBGCC_SPECIAL
741 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
742 static char *link_command_spec = "\
744 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
745 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
746 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
747 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
749 /* Use -L and have the linker do the search for -lgcc. */
750 static char *link_command_spec = "\
752 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
753 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
754 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
755 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
759 /* A vector of options to give to the linker.
760 These options are accumulated by %x,
761 and substituted into the linker command with %X. */
762 static int n_linker_options;
763 static char **linker_options;
765 /* A vector of options to give to the assembler.
766 These options are accumulated by -Wa,
767 and substituted into the assembler command with %Y. */
768 static int n_assembler_options;
769 static char **assembler_options;
771 /* A vector of options to give to the preprocessor.
772 These options are accumulated by -Wp,
773 and substituted into the preprocessor command with %Z. */
774 static int n_preprocessor_options;
775 static char **preprocessor_options;
777 /* Define how to map long options into short ones. */
779 /* This structure describes one mapping. */
782 /* The long option's name. */
784 /* The equivalent short option. */
786 /* Argument info. A string of flag chars; NULL equals no options.
787 a => argument required.
788 o => argument optional.
789 j => join argument to equivalent, making one word.
790 * => require other text after NAME as an argument. */
794 /* This is the table of mappings. Mappings are tried sequentially
795 for each option encountered; the first one that matches, wins. */
797 struct option_map option_map[] =
799 {"--all-warnings", "-Wall", 0},
800 {"--ansi", "-ansi", 0},
801 {"--assemble", "-S", 0},
802 {"--assert", "-A", "a"},
803 {"--comments", "-C", 0},
804 {"--compile", "-c", 0},
805 {"--debug", "-g", "oj"},
806 {"--define-macro", "-D", "a"},
807 {"--dependencies", "-M", 0},
808 {"--dump", "-d", "a"},
809 {"--dumpbase", "-dumpbase", "a"},
810 {"--entry", "-e", 0},
811 {"--extra-warnings", "-W", 0},
812 {"--for-assembler", "-Wa", "a"},
813 {"--for-linker", "-Xlinker", "a"},
814 {"--force-link", "-u", "a"},
815 {"--imacros", "-imacros", "a"},
816 {"--include", "-include", "a"},
817 {"--include-barrier", "-I-", 0},
818 {"--include-directory", "-I", "a"},
819 {"--include-directory-after", "-idirafter", "a"},
820 {"--include-prefix", "-iprefix", "a"},
821 {"--include-with-prefix", "-iwithprefix", "a"},
822 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
823 {"--include-with-prefix-after", "-iwithprefix", "a"},
824 {"--language", "-x", "a"},
825 {"--library-directory", "-L", "a"},
826 {"--machine", "-m", "aj"},
827 {"--machine-", "-m", "*j"},
828 {"--no-line-commands", "-P", 0},
829 {"--no-precompiled-includes", "-noprecomp", 0},
830 {"--no-standard-includes", "-nostdinc", 0},
831 {"--no-standard-libraries", "-nostdlib", 0},
832 {"--no-warnings", "-w", 0},
833 {"--optimize", "-O", "oj"},
834 {"--output", "-o", "a"},
835 {"--pedantic", "-pedantic", 0},
836 {"--pedantic-errors", "-pedantic-errors", 0},
837 {"--pipe", "-pipe", 0},
838 {"--prefix", "-B", "a"},
839 {"--preprocess", "-E", 0},
840 {"--print-file-name", "-print-file-name=", "aj"},
841 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
842 {"--print-missing-file-dependencies", "-MG", 0},
843 {"--print-multi-lib", "-print-multi-lib", 0},
844 {"--print-multi-directory", "-print-multi-directory", 0},
845 {"--print-prog-name", "-print-prog-name=", "aj"},
846 {"--profile", "-p", 0},
847 {"--profile-blocks", "-a", 0},
848 {"--quiet", "-q", 0},
849 {"--save-temps", "-save-temps", 0},
850 {"--shared", "-shared", 0},
851 {"--silent", "-q", 0},
852 {"--static", "-static", 0},
853 {"--symbolic", "-symbolic", 0},
854 {"--target", "-b", "a"},
855 {"--trace-includes", "-H", 0},
856 {"--traditional", "-traditional", 0},
857 {"--traditional-cpp", "-traditional-cpp", 0},
858 {"--trigraphs", "-trigraphs", 0},
859 {"--undefine-macro", "-U", "a"},
860 {"--use-version", "-V", "a"},
861 {"--user-dependencies", "-MM", 0},
862 {"--verbose", "-v", 0},
863 {"--version", "-dumpversion", 0},
864 {"--warn-", "-W", "*j"},
865 {"--write-dependencies", "-MD", 0},
866 {"--write-user-dependencies", "-MMD", 0},
870 /* Translate the options described by *ARGCP and *ARGVP.
871 Make a new vector and store it back in *ARGVP,
872 and store its length in *ARGVC. */
875 translate_options (argcp, argvp)
881 char **argv = *argvp;
882 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
886 newv[newindex++] = argv[i++];
890 /* Translate -- options. */
891 if (argv[i][0] == '-' && argv[i][1] == '-')
893 /* Find a mapping that applies to this option. */
894 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
896 int optlen = strlen (option_map[j].name);
897 int arglen = strlen (argv[i]);
898 int complen = arglen > optlen ? optlen : arglen;
899 char *arginfo = option_map[j].arg_info;
904 if (!strncmp (argv[i], option_map[j].name, complen))
911 k < sizeof (option_map) / sizeof (option_map[0]);
913 if (strlen (option_map[k].name) >= arglen
914 && !strncmp (argv[i], option_map[k].name, arglen))
916 error ("Ambiguous abbreviation %s", argv[i]);
920 if (k != sizeof (option_map) / sizeof (option_map[0]))
926 /* If the option has an argument, accept that. */
927 if (argv[i][optlen] == '=')
928 arg = argv[i] + optlen + 1;
930 /* If this mapping requires extra text at end of name,
931 accept that as "argument". */
932 else if (index (arginfo, '*') != 0)
933 arg = argv[i] + optlen;
935 /* Otherwise, extra text at end means mismatch.
936 Try other mappings. */
941 else if (index (arginfo, '*') != 0)
943 error ("Incomplete `%s' option", option_map[j].name);
947 /* Handle arguments. */
948 if (index (arginfo, 'a') != 0)
954 error ("Missing argument to `%s' option",
962 else if (index (arginfo, '*') != 0)
964 else if (index (arginfo, 'o') == 0)
967 error ("Extraneous argument to `%s' option",
972 /* Store the translation as one argv elt or as two. */
973 if (arg != 0 && index (arginfo, 'j') != 0)
974 newv[newindex++] = concat (option_map[j].equivalent, arg);
977 newv[newindex++] = option_map[j].equivalent;
978 newv[newindex++] = arg;
981 newv[newindex++] = option_map[j].equivalent;
989 /* Handle old-fashioned options--just copy them through,
990 with their arguments. */
991 else if (argv[i][0] == '-')
993 char *p = argv[i] + 1;
997 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
998 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
999 else if (WORD_SWITCH_TAKES_ARG (p))
1000 nskip += WORD_SWITCH_TAKES_ARG (p);
1001 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1004 else if (! strcmp (p, "Xlinker"))
1007 /* Watch out for an option at the end of the command line that
1008 is missing arguments, and avoid skipping past the end of the
1010 if (nskip + i > argc)
1015 newv[newindex++] = argv[i++];
1020 /* Ordinary operands, or +e options. */
1021 newv[newindex++] = argv[i++];
1030 /* Read compilation specs from a file named FILENAME,
1031 replacing the default ones.
1033 A suffix which starts with `*' is a definition for
1034 one of the machine-specific sub-specs. The "suffix" should be
1035 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1036 The corresponding spec is stored in asm_spec, etc.,
1037 rather than in the `compilers' vector.
1039 Anything invalid in the file is a fatal error. */
1042 read_specs (filename)
1046 struct stat statbuf;
1051 fprintf (stderr, "Reading specs from %s\n", filename);
1053 /* Open and stat the file. */
1054 desc = open (filename, O_RDONLY, 0);
1056 pfatal_with_name (filename);
1057 if (stat (filename, &statbuf) < 0)
1058 pfatal_with_name (filename);
1060 /* Read contents of file into BUFFER. */
1061 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1062 read (desc, buffer, (unsigned) statbuf.st_size);
1063 buffer[statbuf.st_size] = 0;
1066 /* Scan BUFFER for specs, putting them in the vector. */
1072 char *in, *out, *p1, *p2;
1074 /* Advance P in BUFFER to the next nonblank nocomment line. */
1075 p = skip_whitespace (p);
1079 /* Find the colon that should end the suffix. */
1081 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1082 /* The colon shouldn't be missing. */
1084 fatal ("specs file malformed after %d characters", p1 - buffer);
1085 /* Skip back over trailing whitespace. */
1087 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1088 /* Copy the suffix to a string. */
1089 suffix = save_string (p, p2 - p);
1090 /* Find the next line. */
1091 p = skip_whitespace (p1 + 1);
1093 fatal ("specs file malformed after %d characters", p - buffer);
1095 /* Find next blank line. */
1096 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1097 /* Specs end at the blank line and do not include the newline. */
1098 spec = save_string (p, p1 - p);
1101 /* Delete backslash-newline sequences from the spec. */
1106 if (in[0] == '\\' && in[1] == '\n')
1108 else if (in[0] == '#')
1110 while (*in && *in != '\n') in++;
1117 if (suffix[0] == '*')
1119 if (! strcmp (suffix, "*link_command"))
1120 link_command_spec = spec;
1122 set_spec (suffix + 1, spec);
1126 /* Add this pair to the vector. */
1128 = ((struct compiler *)
1129 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1130 compilers[n_compilers].suffix = suffix;
1131 bzero ((char *) compilers[n_compilers].spec,
1132 sizeof compilers[n_compilers].spec);
1133 compilers[n_compilers].spec[0] = spec;
1135 bzero ((char *) &compilers[n_compilers],
1136 sizeof compilers[n_compilers]);
1140 link_command_spec = spec;
1143 if (link_command_spec == 0)
1144 fatal ("spec file has no spec for linking");
1153 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1154 be considered whitespace. */
1155 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1157 else if (*p == '\n' || *p == ' ' || *p == '\t')
1161 while (*p != '\n') p++;
1171 /* Structure to keep track of the specs that have been defined so far. These
1172 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1176 char *name; /* Name of the spec. */
1177 char *spec; /* The spec itself. */
1178 struct spec_list *next; /* Next spec in linked list. */
1181 /* List of specs that have been defined so far. */
1183 static struct spec_list *specs = (struct spec_list *) 0;
1185 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1186 removed; If the spec starts with a + then SPEC is added to the end of the
1190 set_spec (name, spec)
1194 struct spec_list *sl;
1197 /* See if the spec already exists */
1198 for (sl = specs; sl; sl = sl->next)
1199 if (strcmp (sl->name, name) == 0)
1204 /* Not found - make it */
1205 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1206 sl->name = save_string (name, strlen (name));
1207 sl->spec = save_string ("", 0);
1212 old_spec = sl->spec;
1213 if (name && spec[0] == '+' && isspace (spec[1]))
1214 sl->spec = concat (old_spec, spec + 1);
1216 sl->spec = save_string (spec, strlen (spec));
1218 if (! strcmp (name, "asm"))
1219 asm_spec = sl->spec;
1220 else if (! strcmp (name, "asm_final"))
1221 asm_final_spec = sl->spec;
1222 else if (! strcmp (name, "cc1"))
1223 cc1_spec = sl->spec;
1224 else if (! strcmp (name, "cc1plus"))
1225 cc1plus_spec = sl->spec;
1226 else if (! strcmp (name, "cpp"))
1227 cpp_spec = sl->spec;
1228 else if (! strcmp (name, "endfile"))
1229 endfile_spec = sl->spec;
1230 else if (! strcmp (name, "lib"))
1231 lib_spec = sl->spec;
1232 else if (! strcmp (name, "link"))
1233 link_spec = sl->spec;
1234 else if (! strcmp (name, "predefines"))
1235 cpp_predefines = sl->spec;
1236 else if (! strcmp (name, "signed_char"))
1237 signed_char_spec = sl->spec;
1238 else if (! strcmp (name, "startfile"))
1239 startfile_spec = sl->spec;
1240 else if (! strcmp (name, "switches_need_spaces"))
1241 switches_need_spaces = sl->spec;
1242 else if (! strcmp (name, "cross_compile"))
1243 cross_compile = atoi (sl->spec);
1244 else if (! strcmp (name, "multilib"))
1245 multilib_select = sl->spec;
1246 /* Free the old spec */
1251 /* Accumulate a command (program name and args), and run it. */
1253 /* Vector of pointers to arguments in the current line of specifications. */
1255 static char **argbuf;
1257 /* Number of elements allocated in argbuf. */
1259 static int argbuf_length;
1261 /* Number of elements in argbuf currently in use (containing args). */
1263 static int argbuf_index;
1265 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1266 temp file. Used only if MKTEMP_EACH_FILE. */
1268 static struct temp_name {
1269 char *suffix; /* suffix associated with the code. */
1270 int length; /* strlen (suffix). */
1271 int unique; /* Indicates whether %g or %u/%U was used. */
1272 char *filename; /* associated filename. */
1273 int filename_length; /* strlen (filename). */
1274 struct temp_name *next;
1277 /* Number of commands executed so far. */
1279 static int execution_count;
1281 /* Number of commands that exited with a signal. */
1283 static int signal_count;
1285 /* Name with which this program was invoked. */
1287 static char *programname;
1289 /* Structures to keep track of prefixes to try when looking for files. */
1293 char *prefix; /* String to prepend to the path. */
1294 struct prefix_list *next; /* Next in linked list. */
1295 int require_machine_suffix; /* Don't use without machine_suffix. */
1296 /* 2 means try both machine_suffix and just_machine_suffix. */
1297 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1302 struct prefix_list *plist; /* List of prefixes to try */
1303 int max_len; /* Max length of a prefix in PLIST */
1304 char *name; /* Name of this list (used in config stuff) */
1307 /* List of prefixes to try when looking for executables. */
1309 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1311 /* List of prefixes to try when looking for startup (crt0) files. */
1313 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1315 /* List of prefixes to try when looking for include files. */
1317 static struct path_prefix include_prefixes = { 0, 0, "include" };
1319 /* Suffix to attach to directories searched for commands.
1320 This looks like `MACHINE/VERSION/'. */
1322 static char *machine_suffix = 0;
1324 /* Suffix to attach to directories searched for commands.
1325 This is just `MACHINE/'. */
1327 static char *just_machine_suffix = 0;
1329 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1331 static char *gcc_exec_prefix;
1333 /* Default prefixes to attach to command names. */
1335 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1336 #undef MD_EXEC_PREFIX
1337 #undef MD_STARTFILE_PREFIX
1338 #undef MD_STARTFILE_PREFIX_1
1341 #ifndef STANDARD_EXEC_PREFIX
1342 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1343 #endif /* !defined STANDARD_EXEC_PREFIX */
1345 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1346 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1347 #ifdef MD_EXEC_PREFIX
1348 static char *md_exec_prefix = MD_EXEC_PREFIX;
1351 #ifndef STANDARD_STARTFILE_PREFIX
1352 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1353 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1355 #ifdef MD_STARTFILE_PREFIX
1356 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1358 #ifdef MD_STARTFILE_PREFIX_1
1359 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1361 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1362 static char *standard_startfile_prefix_1 = "/lib/";
1363 static char *standard_startfile_prefix_2 = "/usr/lib/";
1365 #ifndef TOOLDIR_BASE_PREFIX
1366 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1368 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1369 static char *tooldir_prefix;
1371 /* Subdirectory to use for locating libraries. Set by
1372 set_multilib_dir based on the compilation options. */
1374 static char *multilib_dir;
1376 /* Clear out the vector of arguments (after a command is executed). */
1384 /* Add one argument to the vector at the end.
1385 This is done when a space is seen or at the end of the line.
1386 If DELETE_ALWAYS is nonzero, the arg is a filename
1387 and the file should be deleted eventually.
1388 If DELETE_FAILURE is nonzero, the arg is a filename
1389 and the file should be deleted if this compilation fails. */
1392 store_arg (arg, delete_always, delete_failure)
1394 int delete_always, delete_failure;
1396 if (argbuf_index + 1 == argbuf_length)
1398 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1401 argbuf[argbuf_index++] = arg;
1402 argbuf[argbuf_index] = 0;
1404 if (delete_always || delete_failure)
1405 record_temp_file (arg, delete_always, delete_failure);
1408 /* Record the names of temporary files we tell compilers to write,
1409 and delete them at the end of the run. */
1411 /* This is the common prefix we use to make temp file names.
1412 It is chosen once for each run of this program.
1413 It is substituted into a spec by %g.
1414 Thus, all temp file names contain this prefix.
1415 In practice, all temp file names start with this prefix.
1417 This prefix comes from the envvar TMPDIR if it is defined;
1418 otherwise, from the P_tmpdir macro if that is defined;
1419 otherwise, in /usr/tmp or /tmp. */
1421 static char *temp_filename;
1423 /* Length of the prefix. */
1425 static int temp_filename_length;
1427 /* Define the list of temporary files to delete. */
1432 struct temp_file *next;
1435 /* Queue of files to delete on success or failure of compilation. */
1436 static struct temp_file *always_delete_queue;
1437 /* Queue of files to delete on failure of compilation. */
1438 static struct temp_file *failure_delete_queue;
1440 /* Record FILENAME as a file to be deleted automatically.
1441 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1442 otherwise delete it in any case.
1443 FAIL_DELETE nonzero means delete it if a compilation step fails;
1444 otherwise delete it in any case. */
1447 record_temp_file (filename, always_delete, fail_delete)
1452 register char *name;
1453 name = xmalloc (strlen (filename) + 1);
1454 strcpy (name, filename);
1458 register struct temp_file *temp;
1459 for (temp = always_delete_queue; temp; temp = temp->next)
1460 if (! strcmp (name, temp->name))
1462 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1463 temp->next = always_delete_queue;
1465 always_delete_queue = temp;
1471 register struct temp_file *temp;
1472 for (temp = failure_delete_queue; temp; temp = temp->next)
1473 if (! strcmp (name, temp->name))
1475 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1476 temp->next = failure_delete_queue;
1478 failure_delete_queue = temp;
1483 /* Delete all the temporary files whose names we previously recorded. */
1486 delete_if_ordinary (name)
1493 printf ("Delete %s? (y or n) ", name);
1497 while ((c = getchar ()) != '\n' && c != EOF) ;
1498 if (i == 'y' || i == 'Y')
1500 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1501 if (unlink (name) < 0)
1503 perror_with_name (name);
1507 delete_temp_files ()
1509 register struct temp_file *temp;
1511 for (temp = always_delete_queue; temp; temp = temp->next)
1512 delete_if_ordinary (temp->name);
1513 always_delete_queue = 0;
1516 /* Delete all the files to be deleted on error. */
1519 delete_failure_queue ()
1521 register struct temp_file *temp;
1523 for (temp = failure_delete_queue; temp; temp = temp->next)
1524 delete_if_ordinary (temp->name);
1528 clear_failure_queue ()
1530 failure_delete_queue = 0;
1533 /* Compute a string to use as the base of all temporary file names.
1534 It is substituted for %g. */
1537 choose_temp_base_try (try, base)
1544 else if (try == (char *)0)
1546 else if (access (try, R_OK | W_OK) != 0)
1559 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1560 base = choose_temp_base_try (getenv ("TMP"), base);
1561 base = choose_temp_base_try (getenv ("TEMP"), base);
1564 base = choose_temp_base_try (P_tmpdir, base);
1567 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1568 dir_separator_str, "tmp"),
1570 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1572 /* If all else fails, use the current directory! */
1573 if (base == (char *)0) base = concat(".", dir_separator_str);
1575 len = strlen (base);
1576 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1578 strcpy (temp_filename, base);
1579 if (len > 0 && temp_filename[len-1] != '/'
1580 && temp_filename[len-1] != DIR_SEPARATOR)
1581 temp_filename[len++] = DIR_SEPARATOR;
1582 strcpy (temp_filename + len, "ccXXXXXX");
1584 mktemp (temp_filename);
1585 temp_filename_length = strlen (temp_filename);
1586 if (temp_filename_length == 0)
1591 /* Routine to add variables to the environment. We do this to pass
1592 the pathname of the gcc driver, and the directories search to the
1593 collect2 program, which is being run as ld. This way, we can be
1594 sure of executing the right compiler when collect2 wants to build
1595 constructors and destructors. Since the environment variables we
1596 use come from an obstack, we don't have to worry about allocating
1605 #ifndef VMS /* nor about VMS */
1607 extern char **environ;
1608 char **old_environ = environ;
1612 int str_len = strlen (str);
1616 while ((ch = *p++) != '\0' && ch != '=')
1622 /* Search for replacing an existing environment variable, and
1623 count the number of total environment variables. */
1624 for (envp = old_environ; *envp; envp++)
1627 if (!strncmp (str, *envp, name_len))
1634 /* Add a new environment variable */
1635 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1637 bcopy ((char *) old_environ, (char *) (environ + 1),
1638 sizeof (char *) * (num_envs+1));
1643 #endif /* HAVE_PUTENV */
1646 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1649 putenv_from_prefixes (paths, env_var)
1650 struct path_prefix *paths;
1653 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1655 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1656 int first_time = TRUE;
1657 struct prefix_list *pprefix;
1659 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1661 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1663 int len = strlen (pprefix->prefix);
1666 && is_directory (pprefix->prefix, machine_suffix, 0))
1669 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1672 obstack_grow (&collect_obstack, pprefix->prefix, len);
1673 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1676 if (just_machine_suffix
1677 && pprefix->require_machine_suffix == 2
1678 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1681 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1684 obstack_grow (&collect_obstack, pprefix->prefix, len);
1685 obstack_grow (&collect_obstack, just_machine_suffix,
1689 if (!pprefix->require_machine_suffix)
1692 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1695 obstack_grow (&collect_obstack, pprefix->prefix, len);
1698 obstack_1grow (&collect_obstack, '\0');
1699 putenv (obstack_finish (&collect_obstack));
1703 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1704 access to check permissions.
1705 Return 0 if not found, otherwise return its name, allocated with malloc. */
1708 find_a_file (pprefix, name, mode)
1709 struct path_prefix *pprefix;
1714 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1715 struct prefix_list *pl;
1716 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1719 len += strlen (machine_suffix);
1721 temp = xmalloc (len);
1723 /* Determine the filename to execute (special case for absolute paths). */
1725 if (*name == '/' || *name == DIR_SEPARATOR)
1727 if (access (name, mode))
1729 strcpy (temp, name);
1734 for (pl = pprefix->plist; pl; pl = pl->next)
1738 /* Some systems have a suffix for executable files.
1739 So try appending that first. */
1740 if (file_suffix[0] != 0)
1742 strcpy (temp, pl->prefix);
1743 strcat (temp, machine_suffix);
1744 strcat (temp, name);
1745 strcat (temp, file_suffix);
1746 if (access (temp, mode) == 0)
1748 if (pl->used_flag_ptr != 0)
1749 *pl->used_flag_ptr = 1;
1754 /* Now try just the name. */
1755 strcpy (temp, pl->prefix);
1756 strcat (temp, machine_suffix);
1757 strcat (temp, name);
1758 if (access (temp, mode) == 0)
1760 if (pl->used_flag_ptr != 0)
1761 *pl->used_flag_ptr = 1;
1766 /* Certain prefixes are tried with just the machine type,
1767 not the version. This is used for finding as, ld, etc. */
1768 if (just_machine_suffix && pl->require_machine_suffix == 2)
1770 /* Some systems have a suffix for executable files.
1771 So try appending that first. */
1772 if (file_suffix[0] != 0)
1774 strcpy (temp, pl->prefix);
1775 strcat (temp, just_machine_suffix);
1776 strcat (temp, name);
1777 strcat (temp, file_suffix);
1778 if (access (temp, mode) == 0)
1780 if (pl->used_flag_ptr != 0)
1781 *pl->used_flag_ptr = 1;
1786 strcpy (temp, pl->prefix);
1787 strcat (temp, just_machine_suffix);
1788 strcat (temp, name);
1789 if (access (temp, mode) == 0)
1791 if (pl->used_flag_ptr != 0)
1792 *pl->used_flag_ptr = 1;
1797 /* Certain prefixes can't be used without the machine suffix
1798 when the machine or version is explicitly specified. */
1799 if (!pl->require_machine_suffix)
1801 /* Some systems have a suffix for executable files.
1802 So try appending that first. */
1803 if (file_suffix[0] != 0)
1805 strcpy (temp, pl->prefix);
1806 strcat (temp, name);
1807 strcat (temp, file_suffix);
1808 if (access (temp, mode) == 0)
1810 if (pl->used_flag_ptr != 0)
1811 *pl->used_flag_ptr = 1;
1816 strcpy (temp, pl->prefix);
1817 strcat (temp, name);
1818 if (access (temp, mode) == 0)
1820 if (pl->used_flag_ptr != 0)
1821 *pl->used_flag_ptr = 1;
1831 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1832 at the start of the list, otherwise it goes at the end.
1834 If WARN is nonzero, we will warn if no file is found
1835 through this prefix. WARN should point to an int
1836 which will be set to 1 if this entry is used.
1838 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1839 the complete value of machine_suffix.
1840 2 means try both machine_suffix and just_machine_suffix. */
1843 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1844 struct path_prefix *pprefix;
1847 int require_machine_suffix;
1850 struct prefix_list *pl, **prev;
1853 if (!first && pprefix->plist)
1855 for (pl = pprefix->plist; pl->next; pl = pl->next)
1860 prev = &pprefix->plist;
1862 /* Keep track of the longest prefix */
1864 len = strlen (prefix);
1865 if (len > pprefix->max_len)
1866 pprefix->max_len = len;
1868 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1869 pl->prefix = save_string (prefix, len);
1870 pl->require_machine_suffix = require_machine_suffix;
1871 pl->used_flag_ptr = warn;
1878 pl->next = (struct prefix_list *) 0;
1882 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1885 unused_prefix_warnings (pprefix)
1886 struct path_prefix *pprefix;
1888 struct prefix_list *pl = pprefix->plist;
1892 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1894 error ("file path prefix `%s' never used",
1896 /* Prevent duplicate warnings. */
1897 *pl->used_flag_ptr = 1;
1903 /* Get rid of all prefixes built up so far in *PLISTP. */
1906 free_path_prefix (pprefix)
1907 struct path_prefix *pprefix;
1909 struct prefix_list *pl = pprefix->plist;
1910 struct prefix_list *temp;
1916 free (temp->prefix);
1917 free ((char *) temp);
1919 pprefix->plist = (struct prefix_list *) 0;
1922 /* stdin file number. */
1923 #define STDIN_FILE_NO 0
1925 /* stdout file number. */
1926 #define STDOUT_FILE_NO 1
1928 /* value of `pipe': port index for reading. */
1931 /* value of `pipe': port index for writing. */
1932 #define WRITE_PORT 1
1934 /* Pipe waiting from last process, to be used as input for the next one.
1935 Value is STDIN_FILE_NO if no pipe is waiting
1936 (i.e. the next command is the first of a group). */
1938 static int last_pipe_input;
1940 /* Fork one piped subcommand. FUNC is the system call to use
1941 (either execv or execvp). ARGV is the arg vector to use.
1942 NOT_LAST is nonzero if this is not the last subcommand
1943 (i.e. its output should be piped to the next one.) */
1947 #include <process.h>
1949 pexecute (search_flag, program, argv, not_last)
1956 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1960 int i, el = search_flag ? 0 : 4;
1962 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1963 rf = scmd + strlen(program) + 2 + el;
1964 sprintf (scmd, "%s%s @%s.gp", program,
1965 (search_flag ? "" : ".exe"), temp_filename);
1966 argfile = fopen (rf, "w");
1968 pfatal_with_name (rf);
1970 for (i=1; argv[i]; i++)
1973 for (cp = argv[i]; *cp; cp++)
1975 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1976 fputc ('\\', argfile);
1977 fputc (*cp, argfile);
1979 fputc ('\n', argfile);
1990 perror_exec (program);
1991 return MIN_FATAL_STATUS << 8;
1998 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2001 pexecute (search_flag, program, argv, not_last)
2007 int (*func)() = (search_flag ? execv : execvp);
2010 int input_desc = last_pipe_input;
2011 int output_desc = STDOUT_FILE_NO;
2012 int retries, sleep_interval;
2014 /* If this isn't the last process, make a pipe for its output,
2015 and record it as waiting to be the input to the next process. */
2019 if (pipe (pdes) < 0)
2020 pfatal_with_name ("pipe");
2021 output_desc = pdes[WRITE_PORT];
2022 last_pipe_input = pdes[READ_PORT];
2025 last_pipe_input = STDIN_FILE_NO;
2027 /* Fork a subprocess; wait and retry if it fails. */
2029 for (retries = 0; retries < 4; retries++)
2034 sleep (sleep_interval);
2035 sleep_interval *= 2;
2042 pfatal_with_name ("fork");
2044 pfatal_with_name ("vfork");
2050 /* Move the input and output pipes into place, if nec. */
2051 if (input_desc != STDIN_FILE_NO)
2053 close (STDIN_FILE_NO);
2057 if (output_desc != STDOUT_FILE_NO)
2059 close (STDOUT_FILE_NO);
2061 close (output_desc);
2064 /* Close the parent's descs that aren't wanted here. */
2065 if (last_pipe_input != STDIN_FILE_NO)
2066 close (last_pipe_input);
2068 /* Exec the program. */
2069 (*func) (program, argv);
2070 perror_exec (program);
2076 /* In the parent, after forking.
2077 Close the descriptors that we made for this child. */
2078 if (input_desc != STDIN_FILE_NO)
2080 if (output_desc != STDOUT_FILE_NO)
2081 close (output_desc);
2083 /* Return child's process number. */
2088 #endif /* not __MSDOS__ and not OS2 */
2090 #if defined(OS2) || defined(WINNT)
2100 for (i = 1; argvec[i] != 0; i++)
2103 char *temp, *newtemp;
2106 len = strlen (temp);
2107 for (j = 0; j < len; j++)
2111 newtemp = xmalloc (len + 2);
2112 strncpy (newtemp, temp, j);
2114 strncpy (&newtemp [j+1], &temp [j], len-j);
2115 newtemp [len+1] = 0;
2129 #define FIX_ARGV(a) fix_argv(a)
2133 #define FIX_ARGV(a) a
2135 #endif /* OS2 or WINNT */
2138 pexecute (search_flag, program, argv, not_last)
2144 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2146 #endif /* OS2 or WINNT */
2149 /* Execute the command specified by the arguments on the current line of spec.
2150 When using pipes, this includes several piped-together commands
2151 with `|' between them.
2153 Return 0 if successful, -1 if failed. */
2159 int n_commands; /* # of command. */
2163 char *prog; /* program name. */
2164 char **argv; /* vector of args. */
2165 int pid; /* pid of process for this command. */
2168 struct command *commands; /* each command buffer with above info. */
2170 /* Count # of piped commands. */
2171 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2172 if (strcmp (argbuf[i], "|") == 0)
2175 /* Get storage for each command. */
2177 = (struct command *) alloca (n_commands * sizeof (struct command));
2179 /* Split argbuf into its separate piped processes,
2180 and record info about each one.
2181 Also search for the programs that are to be run. */
2183 commands[0].prog = argbuf[0]; /* first command. */
2184 commands[0].argv = &argbuf[0];
2185 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2187 commands[0].argv[0] = string;
2189 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2190 if (strcmp (argbuf[i], "|") == 0)
2191 { /* each command. */
2193 fatal ("-pipe not supported under MS-DOS");
2195 argbuf[i] = 0; /* termination of command args. */
2196 commands[n_commands].prog = argbuf[i + 1];
2197 commands[n_commands].argv = &argbuf[i + 1];
2198 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2200 commands[n_commands].argv[0] = string;
2204 argbuf[argbuf_index] = 0;
2206 /* If -v, print what we are about to do, and maybe query. */
2210 /* Print each piped command as a separate line. */
2211 for (i = 0; i < n_commands ; i++)
2215 for (j = commands[i].argv; *j; j++)
2216 fprintf (stderr, " %s", *j);
2218 /* Print a pipe symbol after all but the last command. */
2219 if (i + 1 != n_commands)
2220 fprintf (stderr, " |");
2221 fprintf (stderr, "\n");
2225 fprintf (stderr, "\nGo ahead? (y or n) ");
2229 while (getchar () != '\n') ;
2230 if (i != 'y' && i != 'Y')
2235 /* Run each piped subprocess. */
2237 last_pipe_input = STDIN_FILE_NO;
2238 for (i = 0; i < n_commands; i++)
2240 char *string = commands[i].argv[0];
2242 commands[i].pid = pexecute (string != commands[i].prog,
2243 string, commands[i].argv,
2244 i + 1 < n_commands);
2246 if (string != commands[i].prog)
2252 /* Wait for all the subprocesses to finish.
2253 We don't care what order they finish in;
2254 we know that N_COMMANDS waits will get them all. */
2259 for (i = 0; i < n_commands; i++)
2263 char *prog = "unknown";
2266 status = pid = commands[i].pid;
2269 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2271 pid = wait (&status);
2280 for (j = 0; j < n_commands; j++)
2281 if (commands[j].pid == pid)
2282 prog = commands[j].prog;
2284 if (WIFSIGNALED (status))
2286 fatal ("Internal compiler error: program %s got fatal signal %d",
2287 prog, WTERMSIG (status));
2291 else if (WIFEXITED (status)
2292 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2300 /* Find all the switches given to us
2301 and make a vector describing them.
2302 The elements of the vector are strings, one per switch given.
2303 If a switch uses following arguments, then the `part1' field
2304 is the switch itself and the `args' field
2305 is a null-terminated vector containing the following arguments.
2306 The `live_cond' field is 1 if the switch is true in a conditional spec,
2307 -1 if false (overridden by a later switch), and is initialized to zero.
2308 The `valid' field is nonzero if any spec has looked at this switch;
2309 if it remains zero at the end of the run, it must be meaningless. */
2319 static struct switchstr *switches;
2321 static int n_switches;
2329 /* Also a vector of input files specified. */
2331 static struct infile *infiles;
2333 static int n_infiles;
2335 /* And a vector of corresponding output files is made up later. */
2337 static char **outfiles;
2339 /* Create the vector `switches' and its contents.
2340 Store its length in `n_switches'. */
2343 process_command (argc, argv)
2349 char *spec_lang = 0;
2350 int last_language_n_infiles;
2352 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2357 /* Figure compiler version from version string. */
2359 compiler_version = save_string (version_string, strlen (version_string));
2360 for (temp = compiler_version; *temp; ++temp)
2369 /* Set up the default search paths. */
2371 if (gcc_exec_prefix)
2373 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2374 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2377 /* COMPILER_PATH and LIBRARY_PATH have values
2378 that are lists of directory names with colons. */
2380 temp = getenv ("COMPILER_PATH");
2383 char *startp, *endp;
2384 char *nstore = (char *) alloca (strlen (temp) + 3);
2386 startp = endp = temp;
2389 if (*endp == PATH_SEPARATOR || *endp == 0)
2391 strncpy (nstore, startp, endp-startp);
2393 strcpy (nstore, concat (".", dir_separator_str));
2394 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2396 nstore[endp-startp] = DIR_SEPARATOR;
2397 nstore[endp-startp+1] = 0;
2400 nstore[endp-startp] = 0;
2401 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2404 endp = startp = endp + 1;
2411 temp = getenv ("LIBRARY_PATH");
2412 if (temp && ! cross_compile)
2414 char *startp, *endp;
2415 char *nstore = (char *) alloca (strlen (temp) + 3);
2417 startp = endp = temp;
2420 if (*endp == PATH_SEPARATOR || *endp == 0)
2422 strncpy (nstore, startp, endp-startp);
2424 strcpy (nstore, concat (".", dir_separator_str));
2425 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2427 nstore[endp-startp] = DIR_SEPARATOR;
2428 nstore[endp-startp+1] = 0;
2431 nstore[endp-startp] = 0;
2432 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2435 endp = startp = endp + 1;
2442 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2443 temp = getenv ("LPATH");
2444 if (temp && ! cross_compile)
2446 char *startp, *endp;
2447 char *nstore = (char *) alloca (strlen (temp) + 3);
2449 startp = endp = temp;
2452 if (*endp == PATH_SEPARATOR || *endp == 0)
2454 strncpy (nstore, startp, endp-startp);
2456 strcpy (nstore, concat (".", dir_separator_str));
2457 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2459 nstore[endp-startp] = DIR_SEPARATOR;
2460 nstore[endp-startp+1] = 0;
2463 nstore[endp-startp] = 0;
2464 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2467 endp = startp = endp + 1;
2474 /* Convert new-style -- options to old-style. */
2475 translate_options (&argc, &argv);
2477 /* Scan argv twice. Here, the first time, just count how many switches
2478 there will be in their vector, and how many input files in theirs.
2479 Here we also parse the switches that cc itself uses (e.g. -v). */
2481 for (i = 1; i < argc; i++)
2483 if (! strcmp (argv[i], "-dumpspecs"))
2485 printf ("*asm:\n%s\n\n", asm_spec);
2486 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2487 printf ("*cpp:\n%s\n\n", cpp_spec);
2488 printf ("*cc1:\n%s\n\n", cc1_spec);
2489 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2490 printf ("*endfile:\n%s\n\n", endfile_spec);
2491 printf ("*link:\n%s\n\n", link_spec);
2492 printf ("*lib:\n%s\n\n", lib_spec);
2493 printf ("*startfile:\n%s\n\n", startfile_spec);
2494 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2495 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2496 printf ("*predefines:\n%s\n\n", cpp_predefines);
2497 printf ("*cross_compile:\n%d\n\n", cross_compile);
2498 printf ("*multilib:\n%s\n\n", multilib_select);
2502 else if (! strcmp (argv[i], "-dumpversion"))
2504 printf ("%s\n", version_string);
2507 else if (! strcmp (argv[i], "-dumpmachine"))
2509 printf ("%s\n", spec_machine);
2512 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2513 print_file_name = "libgcc.a";
2514 else if (! strncmp (argv[i], "-print-file-name=", 17))
2515 print_file_name = argv[i] + 17;
2516 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2517 print_prog_name = argv[i] + 17;
2518 else if (! strcmp (argv[i], "-print-multi-lib"))
2519 print_multi_lib = 1;
2520 else if (! strcmp (argv[i], "-print-multi-directory"))
2521 print_multi_directory = 1;
2522 else if (! strncmp (argv[i], "-Wa,", 4))
2525 /* Pass the rest of this option to the assembler. */
2527 n_assembler_options++;
2528 if (!assembler_options)
2530 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2533 = (char **) xrealloc (assembler_options,
2534 n_assembler_options * sizeof (char **));
2536 /* Split the argument at commas. */
2538 for (j = 4; argv[i][j]; j++)
2539 if (argv[i][j] == ',')
2541 assembler_options[n_assembler_options - 1]
2542 = save_string (argv[i] + prev, j - prev);
2543 n_assembler_options++;
2545 = (char **) xrealloc (assembler_options,
2546 n_assembler_options * sizeof (char **));
2549 /* Record the part after the last comma. */
2550 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2552 else if (! strncmp (argv[i], "-Wp,", 4))
2555 /* Pass the rest of this option to the preprocessor. */
2557 n_preprocessor_options++;
2558 if (!preprocessor_options)
2559 preprocessor_options
2560 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2562 preprocessor_options
2563 = (char **) xrealloc (preprocessor_options,
2564 n_preprocessor_options * sizeof (char **));
2566 /* Split the argument at commas. */
2568 for (j = 4; argv[i][j]; j++)
2569 if (argv[i][j] == ',')
2571 preprocessor_options[n_preprocessor_options - 1]
2572 = save_string (argv[i] + prev, j - prev);
2573 n_preprocessor_options++;
2574 preprocessor_options
2575 = (char **) xrealloc (preprocessor_options,
2576 n_preprocessor_options * sizeof (char **));
2579 /* Record the part after the last comma. */
2580 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2582 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2583 /* The +e options to the C++ front-end. */
2585 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2588 /* Split the argument at commas. */
2589 for (j = 3; argv[i][j]; j++)
2590 n_infiles += (argv[i][j] == ',');
2592 else if (strcmp (argv[i], "-Xlinker") == 0)
2595 fatal ("argument to `-Xlinker' is missing");
2600 else if (strncmp (argv[i], "-l", 2) == 0)
2602 else if (argv[i][0] == '-' && argv[i][1] != 0)
2604 register char *p = &argv[i][1];
2605 register int c = *p;
2610 if (p[1] == 0 && i + 1 == argc)
2611 fatal ("argument to `-b' is missing");
2613 spec_machine = argv[++i];
2615 spec_machine = p + 1;
2620 int *temp = (int *) xmalloc (sizeof (int));
2622 if (p[1] == 0 && i + 1 == argc)
2623 fatal ("argument to `-B' is missing");
2628 add_prefix (&exec_prefixes, value, 1, 0, temp);
2629 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2630 add_prefix (&include_prefixes, concat (value, "include"),
2633 /* As a kludge, if the arg is "[foo/]stageN/", just add
2634 "[foo/]include" to the include prefix. */
2636 int len = strlen (value);
2639 && (value[len - 8] == '/'
2640 || value[len - 8] == DIR_SEPARATOR)))
2641 && strncmp (value + len - 7, "stage", 5) == 0
2642 && isdigit (value[len - 2])
2643 && (value[len - 1] == '/'
2644 || value[len - 1] == DIR_SEPARATOR))
2647 add_prefix (&include_prefixes, "include", 1, 0, 0);
2650 char *string = xmalloc (len + 1);
2651 strncpy (string, value, len-7);
2652 strcat (string, "include");
2653 add_prefix (&include_prefixes, string, 1, 0, 0);
2660 case 'v': /* Print our subcommands and print versions. */
2662 /* If they do anything other than exactly `-v', don't set
2663 verbose_flag; rather, continue on to give the error. */
2670 if (p[1] == 0 && i + 1 == argc)
2671 fatal ("argument to `-V' is missing");
2673 spec_version = argv[++i];
2675 spec_version = p + 1;
2676 compiler_version = spec_version;
2680 if (!strcmp (p, "save-temps"))
2682 save_temps_flag = 1;
2689 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2690 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2691 else if (WORD_SWITCH_TAKES_ARG (p))
2692 i += WORD_SWITCH_TAKES_ARG (p);
2699 /* Set up the search paths before we go looking for config files. */
2701 /* These come before the md prefixes so that we will find gcc's subcommands
2702 (such as cpp) rather than those of the host system. */
2703 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2704 as well as trying the machine and the version. */
2706 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2707 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2710 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2711 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2713 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2716 /* If tooldir is relative, base it on exec_prefixes. A relative
2717 tooldir lets us move the installed tree as a unit.
2719 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2720 directories, so that we can search both the user specified directory
2721 and the standard place. */
2723 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2725 if (gcc_exec_prefix)
2727 char *gcc_exec_tooldir_prefix
2728 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2729 spec_version, dir_separator_str, tooldir_prefix);
2731 add_prefix (&exec_prefixes,
2732 concat3 (gcc_exec_tooldir_prefix, "bin",
2735 add_prefix (&startfile_prefixes,
2736 concat3 (gcc_exec_tooldir_prefix, "lib",
2741 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2742 dir_separator_str, spec_version,
2743 dir_separator_str, tooldir_prefix);
2746 add_prefix (&exec_prefixes,
2747 concat3 (tooldir_prefix, "bin", dir_separator_str),
2749 add_prefix (&startfile_prefixes,
2750 concat3 (tooldir_prefix, "lib", dir_separator_str),
2753 /* More prefixes are enabled in main, after we read the specs file
2754 and determine whether this is cross-compilation or not. */
2757 /* Then create the space for the vectors and scan again. */
2759 switches = ((struct switchstr *)
2760 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2761 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2764 last_language_n_infiles = -1;
2766 /* This, time, copy the text of each switch and store a pointer
2767 to the copy in the vector of switches.
2768 Store all the infiles in their vector. */
2770 for (i = 1; i < argc; i++)
2772 /* Just skip the switches that were handled by the preceding loop. */
2773 if (! strncmp (argv[i], "-Wa,", 4))
2775 else if (! strncmp (argv[i], "-Wp,", 4))
2777 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2779 else if (! strncmp (argv[i], "-print-file-name=", 17))
2781 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2783 else if (! strcmp (argv[i], "-print-multi-lib"))
2785 else if (! strcmp (argv[i], "-print-multi-directory"))
2787 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2789 /* Compensate for the +e options to the C++ front-end;
2790 they're there simply for cfront call-compatibility. We do
2791 some magic in default_compilers to pass them down properly.
2792 Note we deliberately start at the `+' here, to avoid passing
2793 -e0 or -e1 down into the linker. */
2794 switches[n_switches].part1 = &argv[i][0];
2795 switches[n_switches].args = 0;
2796 switches[n_switches].live_cond = 0;
2797 switches[n_switches].valid = 0;
2800 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2803 /* Split the argument at commas. */
2805 for (j = 4; argv[i][j]; j++)
2806 if (argv[i][j] == ',')
2808 infiles[n_infiles].language = spec_lang;
2809 infiles[n_infiles++].name
2810 = save_string (argv[i] + prev, j - prev);
2813 /* Record the part after the last comma. */
2814 infiles[n_infiles].language = spec_lang;
2815 infiles[n_infiles++].name = argv[i] + prev;
2817 else if (strcmp (argv[i], "-Xlinker") == 0)
2819 infiles[n_infiles].language = spec_lang;
2820 infiles[n_infiles++].name = argv[++i];
2822 else if (strncmp (argv[i], "-l", 2) == 0)
2824 infiles[n_infiles].language = spec_lang;
2825 infiles[n_infiles++].name = argv[i];
2827 else if (argv[i][0] == '-' && argv[i][1] != 0)
2829 register char *p = &argv[i][1];
2830 register int c = *p;
2832 if (c == 'B' || c == 'b' || c == 'V')
2834 /* Skip a separate arg, if any. */
2841 if (p[1] == 0 && i + 1 == argc)
2842 fatal ("argument to `-x' is missing");
2844 spec_lang = argv[++i];
2847 if (! strcmp (spec_lang, "none"))
2848 /* Suppress the warning if -xnone comes after the last input file,
2849 because alternate command interfaces like g++ might find it
2850 useful to place -xnone after each input file. */
2853 last_language_n_infiles = n_infiles;
2856 switches[n_switches].part1 = p;
2857 /* Deal with option arguments in separate argv elements. */
2858 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2859 || WORD_SWITCH_TAKES_ARG (p))
2862 int n_args = WORD_SWITCH_TAKES_ARG (p);
2866 /* Count only the option arguments in separate argv elements. */
2867 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2869 if (i + n_args >= argc)
2870 fatal ("argument to `-%s' is missing", p);
2871 switches[n_switches].args
2872 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2874 switches[n_switches].args[j++] = argv[++i];
2875 /* Null-terminate the vector. */
2876 switches[n_switches].args[j] = 0;
2878 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2880 /* On some systems, ld cannot handle -o or -L without space.
2881 So split the -o or -L from its argument. */
2882 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2883 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2884 switches[n_switches].args[0] = xmalloc (strlen (p));
2885 strcpy (switches[n_switches].args[0], &p[1]);
2886 switches[n_switches].args[1] = 0;
2889 switches[n_switches].args = 0;
2891 switches[n_switches].live_cond = 0;
2892 switches[n_switches].valid = 0;
2893 /* This is always valid, since gcc.c itself understands it. */
2894 if (!strcmp (p, "save-temps"))
2895 switches[n_switches].valid = 1;
2900 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2902 perror_with_name (argv[i]);
2907 infiles[n_infiles].language = spec_lang;
2908 infiles[n_infiles++].name = argv[i];
2913 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2914 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2916 switches[n_switches].part1 = 0;
2917 infiles[n_infiles].name = 0;
2919 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2920 if (gcc_exec_prefix)
2922 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2923 + strlen (spec_machine) + 3);
2924 strcpy (temp, gcc_exec_prefix);
2925 strcat (temp, spec_machine);
2926 strcat (temp, dir_separator_str);
2927 strcat (temp, spec_version);
2928 strcat (temp, dir_separator_str);
2929 gcc_exec_prefix = temp;
2933 /* Process a spec string, accumulating and running commands. */
2935 /* These variables describe the input file name.
2936 input_file_number is the index on outfiles of this file,
2937 so that the output file name can be stored for later use by %o.
2938 input_basename is the start of the part of the input file
2939 sans all directory names, and basename_length is the number
2940 of characters starting there excluding the suffix .c or whatever. */
2942 static char *input_filename;
2943 static int input_file_number;
2944 static int input_filename_length;
2945 static int basename_length;
2946 static char *input_basename;
2947 static char *input_suffix;
2949 /* These are variables used within do_spec and do_spec_1. */
2951 /* Nonzero if an arg has been started and not yet terminated
2952 (with space, tab or newline). */
2953 static int arg_going;
2955 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2956 is a temporary file name. */
2957 static int delete_this_arg;
2959 /* Nonzero means %w has been seen; the next arg to be terminated
2960 is the output file name of this compilation. */
2961 static int this_is_output_file;
2963 /* Nonzero means %s has been seen; the next arg to be terminated
2964 is the name of a library file and we should try the standard
2965 search dirs for it. */
2966 static int this_is_library_file;
2968 /* Nonzero means that the input of this command is coming from a pipe. */
2969 static int input_from_pipe;
2971 /* Process the spec SPEC and run the commands specified therein.
2972 Returns 0 if the spec is successfully processed; -1 if failed. */
2982 delete_this_arg = 0;
2983 this_is_output_file = 0;
2984 this_is_library_file = 0;
2985 input_from_pipe = 0;
2987 value = do_spec_1 (spec, 0, NULL_PTR);
2989 /* Force out any unfinished command.
2990 If -pipe, this forces out the last command if it ended in `|'. */
2993 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2996 if (argbuf_index > 0)
3003 /* Process the sub-spec SPEC as a portion of a larger spec.
3004 This is like processing a whole spec except that we do
3005 not initialize at the beginning and we do not supply a
3006 newline by default at the end.
3007 INSWITCH nonzero means don't process %-sequences in SPEC;
3008 in this case, % is treated as an ordinary character.
3009 This is used while substituting switches.
3010 INSWITCH nonzero also causes SPC not to terminate an argument.
3012 Value is zero unless a line was finished
3013 and the command on that line reported an error. */
3016 do_spec_1 (spec, inswitch, soft_matched_part)
3019 char *soft_matched_part;
3021 register char *p = spec;
3028 /* If substituting a switch, treat all chars like letters.
3029 Otherwise, NL, SPC, TAB and % are special. */
3030 switch (inswitch ? 'a' : c)
3033 /* End of line: finish any pending argument,
3034 then run the pending command if one has been started. */
3037 obstack_1grow (&obstack, 0);
3038 string = obstack_finish (&obstack);
3039 if (this_is_library_file)
3040 string = find_file (string);
3041 store_arg (string, delete_this_arg, this_is_output_file);
3042 if (this_is_output_file)
3043 outfiles[input_file_number] = string;
3047 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3050 for (i = 0; i < n_switches; i++)
3051 if (!strcmp (switches[i].part1, "pipe"))
3054 /* A `|' before the newline means use a pipe here,
3055 but only if -pipe was specified.
3056 Otherwise, execute now and don't pass the `|' as an arg. */
3059 input_from_pipe = 1;
3060 switches[i].valid = 1;
3067 if (argbuf_index > 0)
3073 /* Reinitialize for a new command, and for a new argument. */
3076 delete_this_arg = 0;
3077 this_is_output_file = 0;
3078 this_is_library_file = 0;
3079 input_from_pipe = 0;
3083 /* End any pending argument. */
3086 obstack_1grow (&obstack, 0);
3087 string = obstack_finish (&obstack);
3088 if (this_is_library_file)
3089 string = find_file (string);
3090 store_arg (string, delete_this_arg, this_is_output_file);
3091 if (this_is_output_file)
3092 outfiles[input_file_number] = string;
3096 obstack_1grow (&obstack, c);
3102 /* Space or tab ends an argument if one is pending. */
3105 obstack_1grow (&obstack, 0);
3106 string = obstack_finish (&obstack);
3107 if (this_is_library_file)
3108 string = find_file (string);
3109 store_arg (string, delete_this_arg, this_is_output_file);
3110 if (this_is_output_file)
3111 outfiles[input_file_number] = string;
3113 /* Reinitialize for a new argument. */
3115 delete_this_arg = 0;
3116 this_is_output_file = 0;
3117 this_is_library_file = 0;
3124 fatal ("Invalid specification! Bug in cc.");
3127 obstack_grow (&obstack, input_basename, basename_length);
3132 delete_this_arg = 2;
3135 /* Dump out the directories specified with LIBRARY_PATH,
3136 followed by the absolute directories
3137 that we search for startfiles. */
3140 struct prefix_list *pl = startfile_prefixes.plist;
3142 char *buffer = (char *) xmalloc (bufsize);
3145 for (; pl; pl = pl->next)
3147 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3148 /* Used on systems which record the specified -L dirs
3149 and use them to search for dynamic linking. */
3150 /* Relative directories always come from -B,
3151 and it is better not to use them for searching
3152 at run time. In particular, stage1 loses */
3153 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3156 /* Try subdirectory if there is one. */
3157 if (multilib_dir != NULL)
3161 if (strlen (pl->prefix) + strlen (machine_suffix)
3163 bufsize = (strlen (pl->prefix)
3164 + strlen (machine_suffix)) * 2 + 1;
3165 buffer = (char *) xrealloc (buffer, bufsize);
3166 strcpy (buffer, pl->prefix);
3167 strcat (buffer, machine_suffix);
3168 if (is_directory (buffer, multilib_dir, 1))
3170 do_spec_1 ("-L", 0, NULL_PTR);
3171 #ifdef SPACE_AFTER_L_OPTION
3172 do_spec_1 (" ", 0, NULL_PTR);
3174 do_spec_1 (buffer, 1, NULL_PTR);
3175 do_spec_1 (multilib_dir, 1, NULL_PTR);
3176 /* Make this a separate argument. */
3177 do_spec_1 (" ", 0, NULL_PTR);
3180 if (!pl->require_machine_suffix)
3182 if (is_directory (pl->prefix, multilib_dir, 1))
3184 do_spec_1 ("-L", 0, NULL_PTR);
3185 #ifdef SPACE_AFTER_L_OPTION
3186 do_spec_1 (" ", 0, NULL_PTR);
3188 do_spec_1 (pl->prefix, 1, NULL_PTR);
3189 do_spec_1 (multilib_dir, 1, NULL_PTR);
3190 /* Make this a separate argument. */
3191 do_spec_1 (" ", 0, NULL_PTR);
3197 if (is_directory (pl->prefix, machine_suffix, 1))
3199 do_spec_1 ("-L", 0, NULL_PTR);
3200 #ifdef SPACE_AFTER_L_OPTION
3201 do_spec_1 (" ", 0, NULL_PTR);
3203 do_spec_1 (pl->prefix, 1, NULL_PTR);
3204 /* Remove slash from machine_suffix. */
3205 if (strlen (machine_suffix) >= bufsize)
3206 bufsize = strlen (machine_suffix) * 2 + 1;
3207 buffer = (char *) xrealloc (buffer, bufsize);
3208 strcpy (buffer, machine_suffix);
3209 idx = strlen (buffer);
3210 if (buffer[idx - 1] == '/'
3211 || buffer[idx - 1] == DIR_SEPARATOR)
3212 buffer[idx - 1] = 0;
3213 do_spec_1 (buffer, 1, NULL_PTR);
3214 /* Make this a separate argument. */
3215 do_spec_1 (" ", 0, NULL_PTR);
3218 if (!pl->require_machine_suffix)
3220 if (is_directory (pl->prefix, "", 1))
3222 do_spec_1 ("-L", 0, NULL_PTR);
3223 #ifdef SPACE_AFTER_L_OPTION
3224 do_spec_1 (" ", 0, NULL_PTR);
3226 /* Remove slash from pl->prefix. */
3227 if (strlen (pl->prefix) >= bufsize)
3228 bufsize = strlen (pl->prefix) * 2 + 1;
3229 buffer = (char *) xrealloc (buffer, bufsize);
3230 strcpy (buffer, pl->prefix);
3231 idx = strlen (buffer);
3232 if (buffer[idx - 1] == '/'
3233 || buffer[idx - 1] == DIR_SEPARATOR)
3234 buffer[idx - 1] = 0;
3235 do_spec_1 (buffer, 1, NULL_PTR);
3236 /* Make this a separate argument. */
3237 do_spec_1 (" ", 0, NULL_PTR);
3246 /* {...:%efoo} means report an error with `foo' as error message
3247 and don't execute any more commands for this file. */
3251 while (*p != 0 && *p != '\n') p++;
3252 buf = (char *) alloca (p - q + 1);
3253 strncpy (buf, q, p - q);
3263 if (save_temps_flag)
3265 obstack_grow (&obstack, input_basename, basename_length);
3266 delete_this_arg = 0;
3270 #ifdef MKTEMP_EACH_FILE
3271 /* ??? This has a problem: the total number of
3272 values mktemp can return is limited.
3273 That matters for the names of object files.
3274 In 2.4, do something about that. */
3275 struct temp_name *t;
3277 while (*p == '.' || isalpha (*p))
3280 /* See if we already have an association of %g/%u/%U and
3282 for (t = temp_names; t; t = t->next)
3283 if (t->length == p - suffix
3284 && strncmp (t->suffix, suffix, p - suffix) == 0
3285 && t->unique == (c != 'g'))
3288 /* Make a new association if needed. %u requires one. */
3289 if (t == 0 || c == 'u')
3293 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3294 t->next = temp_names;
3297 t->length = p - suffix;
3298 t->suffix = save_string (suffix, p - suffix);
3299 t->unique = (c != 'g');
3300 choose_temp_base ();
3301 t->filename = temp_filename;
3302 t->filename_length = temp_filename_length;
3305 obstack_grow (&obstack, t->filename, t->filename_length);
3306 delete_this_arg = 1;
3308 obstack_grow (&obstack, temp_filename, temp_filename_length);
3309 if (c == 'u' || c == 'U')
3315 sprintf (buff, "%d", unique);
3316 obstack_grow (&obstack, buff, strlen (buff));
3319 delete_this_arg = 1;
3325 obstack_grow (&obstack, input_filename, input_filename_length);
3331 struct prefix_list *pl = include_prefixes.plist;
3333 if (gcc_exec_prefix)
3335 do_spec_1 ("-iprefix", 1, NULL_PTR);
3336 /* Make this a separate argument. */
3337 do_spec_1 (" ", 0, NULL_PTR);
3338 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3339 do_spec_1 (" ", 0, NULL_PTR);
3342 for (; pl; pl = pl->next)
3344 do_spec_1 ("-isystem", 1, NULL_PTR);
3345 /* Make this a separate argument. */
3346 do_spec_1 (" ", 0, NULL_PTR);
3347 do_spec_1 (pl->prefix, 1, NULL_PTR);
3348 do_spec_1 (" ", 0, NULL_PTR);
3356 for (f = 0; f < n_infiles; f++)
3357 store_arg (outfiles[f], 0, 0);
3362 this_is_library_file = 1;
3366 this_is_output_file = 1;
3371 int index = argbuf_index;
3372 /* Handle the {...} following the %W. */
3375 p = handle_braces (p + 1);
3378 /* If any args were output, mark the last one for deletion
3380 if (argbuf_index != index)
3381 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3385 /* %x{OPTION} records OPTION for %X to output. */
3391 /* Skip past the option value and make a copy. */
3396 string = save_string (p1 + 1, p - p1 - 2);
3398 /* See if we already recorded this option. */
3399 for (i = 0; i < n_linker_options; i++)
3400 if (! strcmp (string, linker_options[i]))
3406 /* This option is new; add it. */
3408 if (!linker_options)
3410 = (char **) xmalloc (n_linker_options * sizeof (char **));
3413 = (char **) xrealloc (linker_options,
3414 n_linker_options * sizeof (char **));
3416 linker_options[n_linker_options - 1] = string;
3420 /* Dump out the options accumulated previously using %x. */
3422 for (i = 0; i < n_linker_options; i++)
3424 do_spec_1 (linker_options[i], 1, NULL_PTR);
3425 /* Make each accumulated option a separate argument. */
3426 do_spec_1 (" ", 0, NULL_PTR);
3430 /* Dump out the options accumulated previously using -Wa,. */
3432 for (i = 0; i < n_assembler_options; i++)
3434 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3435 /* Make each accumulated option a separate argument. */
3436 do_spec_1 (" ", 0, NULL_PTR);
3440 /* Dump out the options accumulated previously using -Wp,. */
3442 for (i = 0; i < n_preprocessor_options; i++)
3444 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3445 /* Make each accumulated option a separate argument. */
3446 do_spec_1 (" ", 0, NULL_PTR);
3450 /* Here are digits and numbers that just process
3451 a certain constant string as a spec. */
3454 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3460 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3466 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3472 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3478 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3484 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3490 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3496 value = do_spec_1 (link_spec, 0, NULL_PTR);
3502 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3509 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3513 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3517 if (! strncmp (y, "-D", 2))
3518 /* Copy the whole option. */
3519 while (*y && *y != ' ' && *y != '\t')
3521 else if (*y == ' ' || *y == '\t')
3522 /* Copy whitespace to the result. */
3524 /* Don't copy other options. */
3531 value = do_spec_1 (buf, 0, NULL_PTR);
3539 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3543 /* Copy all of CPP_PREDEFINES into BUF,
3544 but put __ after every -D and at the end of each arg. */
3548 if (! strncmp (y, "-D", 2))
3556 || (*(y+1) != '_' && ! isupper (*(y+1))))
3558 /* Stick __ at front of macro name. */
3561 /* Arrange to stick __ at the end as well. */
3565 /* Copy the macro name. */
3566 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3575 /* Copy the value given, if any. */
3576 while (*y && *y != ' ' && *y != '\t')
3579 else if (*y == ' ' || *y == '\t')
3580 /* Copy whitespace to the result. */
3582 /* Don't copy -A options */
3588 /* Copy all of CPP_PREDEFINES into BUF,
3589 but put __ after every -D. */
3593 if (! strncmp (y, "-D", 2))
3598 || (*(y+1) != '_' && ! isupper (*(y+1))))
3600 /* Stick -D__ at front of macro name. */
3606 /* Copy the macro name. */
3607 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3610 /* Copy the value given, if any. */
3611 while (*y && *y != ' ' && *y != '\t')
3616 /* Do not copy this macro - we have just done it before */
3617 while (*y && *y != ' ' && *y != '\t')
3621 else if (*y == ' ' || *y == '\t')
3622 /* Copy whitespace to the result. */
3624 /* Don't copy -A options */
3630 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3634 if (! strncmp (y, "-A", 2))
3635 /* Copy the whole option. */
3636 while (*y && *y != ' ' && *y != '\t')
3638 else if (*y == ' ' || *y == '\t')
3639 /* Copy whitespace to the result. */
3641 /* Don't copy other options. */
3648 value = do_spec_1 (buf, 0, NULL_PTR);
3655 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3660 /* Here we define characters other than letters and digits. */
3663 p = handle_braces (p);
3669 obstack_1grow (&obstack, '%');
3673 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3674 do_spec_1 (" ", 0, NULL_PTR);
3677 /* Process a string found as the value of a spec given by name.
3678 This feature allows individual machine descriptions
3679 to add and use their own specs.
3680 %[...] modifies -D options the way %P does;
3681 %(...) uses the spec unmodified. */
3686 struct spec_list *sl;
3689 /* The string after the S/P is the name of a spec that is to be
3691 while (*p && *p != ')' && *p != ']')
3694 /* See if it's in the list */
3695 for (len = p - name, sl = specs; sl; sl = sl->next)
3696 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3706 value = do_spec_1 (name, 0, NULL_PTR);
3712 char *x = (char *) alloca (strlen (name) * 2 + 1);
3716 /* Copy all of NAME into BUF, but put __ after
3717 every -D and at the end of each arg, */
3720 if (! strncmp (y, "-D", 2))
3728 else if (*y == ' ' || *y == 0)
3742 value = do_spec_1 (buf, 0, NULL_PTR);
3748 /* Discard the closing paren or bracket. */
3756 int c1 = *p++; /* Select first or second version number. */
3757 char *v = compiler_version;
3759 /* If desired, advance to second version number. */
3762 /* Set P after the first period. */
3763 while (*v != 0 && *v != ' ' && *v != '.')
3768 /* Set Q at the next period or at the end. */
3770 while (*q != 0 && *q != ' ' && *q != '.')
3772 /* Empty string means zero. */
3778 /* Put that part into the command. */
3779 obstack_grow (&obstack, v, q - v);
3785 if (input_from_pipe)
3786 do_spec_1 ("-", 0, NULL_PTR);
3795 /* Backslash: treat next character as ordinary. */
3800 /* Ordinary character: put it into the current argument. */
3801 obstack_1grow (&obstack, c);
3805 return 0; /* End of string */
3808 /* Return 0 if we call do_spec_1 and that returns -1. */
3821 /* A `|' after the open-brace means,
3822 if the test fails, output a single minus sign rather than nothing.
3823 This is used in %{|!pipe:...}. */
3827 /* A `!' after the open-brace negates the condition:
3828 succeed if the specified switch is not present. */
3832 /* A `.' after the open-brace means test against the current suffix. */
3842 while (*p != ':' && *p != '}') p++;
3845 register int count = 1;
3863 int found = (input_suffix != 0
3864 && strlen (input_suffix) == p - filter
3865 && strncmp (input_suffix, filter, p - filter) == 0);
3871 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3876 else if (p[-1] == '*' && p[0] == '}')
3878 /* Substitute all matching switches as separate args. */
3881 for (i = 0; i < n_switches; i++)
3882 if (!strncmp (switches[i].part1, filter, p - filter)
3883 && check_live_switch (i, p - filter))
3888 /* Test for presence of the specified switch. */
3892 /* If name specified ends in *, as in {x*:...},
3893 check for %* and handle that case. */
3894 if (p[-1] == '*' && !negate)
3899 /* First see whether we have %*. */
3903 if (*r == '%' && r[1] == '*')
3907 /* If we do, handle that case. */
3910 /* Substitute all matching switches as separate args.
3911 But do this by substituting for %*
3912 in the text that follows the colon. */
3914 unsigned hard_match_len = p - filter - 1;
3915 char *string = save_string (p + 1, q - p - 2);
3917 for (i = 0; i < n_switches; i++)
3918 if (!strncmp (switches[i].part1, filter, hard_match_len)
3919 && check_live_switch (i, -1))
3921 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3922 /* Pass any arguments this switch has. */
3930 /* If name specified ends in *, as in {x*:...},
3931 check for presence of any switch name starting with x. */
3934 for (i = 0; i < n_switches; i++)
3936 unsigned hard_match_len = p - filter - 1;
3938 if (!strncmp (switches[i].part1, filter, hard_match_len)
3939 && check_live_switch (i, hard_match_len))
3945 /* Otherwise, check for presence of exact name specified. */
3948 for (i = 0; i < n_switches; i++)
3950 if (!strncmp (switches[i].part1, filter, p - filter)
3951 && switches[i].part1[p - filter] == 0
3952 && check_live_switch (i, -1))
3960 /* If it is as desired (present for %{s...}, absent for %{-s...})
3961 then substitute either the switch or the specified
3962 conditional text. */
3963 if (present != negate)
3971 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3977 /* Here if a %{|...} conditional fails: output a minus sign,
3978 which means "standard output" or "standard input". */
3979 do_spec_1 ("-", 0, NULL_PTR);
3986 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3987 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3988 spec, or -1 if either exact match or %* is used.
3990 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3991 whose value does not begin with "no-" is obsoleted by the same value
3992 with the "no-", similarly for a switch with the "no-" prefix. */
3995 check_live_switch (switchnum, prefix_length)
3999 char *name = switches[switchnum].part1;
4002 /* In the common case of {<at-most-one-letter>*}, a negating
4003 switch would always match, so ignore that case. We will just
4004 send the conflicting switches to the compiler phase. */
4005 if (prefix_length >= 0 && prefix_length <= 1)
4008 /* If we already processed this switch and determined if it was
4009 live or not, return our past determination. */
4010 if (switches[switchnum].live_cond != 0)
4011 return switches[switchnum].live_cond > 0;
4013 /* Now search for duplicate in a manner that depends on the name. */
4017 for (i = switchnum + 1; i < n_switches; i++)
4018 if (switches[i].part1[0] == 'O')
4020 switches[switchnum].valid = 1;
4021 switches[switchnum].live_cond = -1;
4026 case 'W': case 'f': case 'm':
4027 if (! strncmp (name + 1, "no-", 3))
4029 /* We have Xno-YYY, search for XYYY. */
4030 for (i = switchnum + 1; i < n_switches; i++)
4031 if (switches[i].part1[0] == name[0]
4032 && ! strcmp (&switches[i].part1[1], &name[4]))
4034 switches[switchnum].valid = 1;
4035 switches[switchnum].live_cond = -1;
4041 /* We have XYYY, search for Xno-YYY. */
4042 for (i = switchnum + 1; i < n_switches; i++)
4043 if (switches[i].part1[0] == name[0]
4044 && switches[i].part1[1] == 'n'
4045 && switches[i].part1[2] == 'o'
4046 && switches[i].part1[3] == '-'
4047 && !strcmp (&switches[i].part1[4], &name[1]))
4049 switches[switchnum].valid = 1;
4050 switches[switchnum].live_cond = -1;
4057 /* Otherwise the switch is live. */
4058 switches[switchnum].live_cond = 1;
4062 /* Pass a switch to the current accumulating command
4063 in the same form that we received it.
4064 SWITCHNUM identifies the switch; it is an index into
4065 the vector of switches gcc received, which is `switches'.
4066 This cannot fail since it never finishes a command line.
4068 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4071 give_switch (switchnum, omit_first_word)
4073 int omit_first_word;
4075 if (!omit_first_word)
4077 do_spec_1 ("-", 0, NULL_PTR);
4078 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4080 do_spec_1 (" ", 0, NULL_PTR);
4081 if (switches[switchnum].args != 0)
4084 for (p = switches[switchnum].args; *p; p++)
4086 do_spec_1 (*p, 1, NULL_PTR);
4087 do_spec_1 (" ", 0, NULL_PTR);
4090 switches[switchnum].valid = 1;
4093 /* Search for a file named NAME trying various prefixes including the
4094 user's -B prefix and some standard ones.
4095 Return the absolute file name found. If nothing is found, return NAME. */
4103 /* Try multilib_dir if it is defined. */
4104 if (multilib_dir != NULL)
4108 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4109 strcpy (try, multilib_dir);
4110 strcat (try, dir_separator_str);
4113 newname = find_a_file (&startfile_prefixes, try, R_OK);
4115 /* If we don't find it in the multi library dir, then fall
4116 through and look for it in the normal places. */
4117 if (newname != NULL)
4121 newname = find_a_file (&startfile_prefixes, name, R_OK);
4122 return newname ? newname : name;
4125 /* Determine whether a directory exists. If LINKER, return 0 for
4126 certain fixed names not needed by the linker. If not LINKER, it is
4127 only important to return 0 if the host machine has a small ARG_MAX
4131 is_directory (path1, path2, linker)
4136 int len1 = strlen (path1);
4137 int len2 = strlen (path2);
4138 char *path = (char *) alloca (3 + len1 + len2);
4142 #ifndef SMALL_ARG_MAX
4147 /* Construct the path from the two parts. Ensure the string ends with "/.".
4148 The resulting path will be a directory even if the given path is a
4150 bcopy (path1, path, len1);
4151 bcopy (path2, path + len1, len2);
4152 cp = path + len1 + len2;
4153 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4154 *cp++ = DIR_SEPARATOR;
4158 /* Exclude directories that the linker is known to search. */
4161 && strcmp (path, concat4 (dir_separator_str, "lib",
4162 dir_separator_str, ".")) == 0)
4164 && strcmp (path, concat6 (dir_separator_str, "usr",
4165 dir_separator_str, "lib",
4166 dir_separator_str, ".")) == 0)))
4169 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4172 /* On fatal signals, delete all the temporary files. */
4175 fatal_error (signum)
4178 signal (signum, SIG_DFL);
4179 delete_failure_queue ();
4180 delete_temp_files ();
4181 /* Get the same signal again, this time not handled,
4182 so its normal effect occurs. */
4183 kill (getpid (), signum);
4194 int linker_was_run = 0;
4195 char *explicit_link_files;
4199 p = argv[0] + strlen (argv[0]);
4200 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4203 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4204 signal (SIGINT, fatal_error);
4206 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4207 signal (SIGHUP, fatal_error);
4209 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4210 signal (SIGTERM, fatal_error);
4212 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4213 signal (SIGPIPE, fatal_error);
4217 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4219 obstack_init (&obstack);
4221 /* Set up to remember the pathname of gcc and any options
4222 needed for collect. We use argv[0] instead of programname because
4223 we need the complete pathname. */
4224 obstack_init (&collect_obstack);
4225 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4226 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4227 putenv (obstack_finish (&collect_obstack));
4229 /* Choose directory for temp files. */
4231 choose_temp_base ();
4233 /* Make a table of what switches there are (switches, n_switches).
4234 Make a table of specified input files (infiles, n_infiles).
4235 Decode switches that are handled locally. */
4237 process_command (argc, argv);
4239 /* Initialize the vector of specs to just the default.
4240 This means one element containing 0s, as a terminator. */
4242 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4243 bcopy ((char *) default_compilers, (char *) compilers,
4244 sizeof default_compilers);
4245 n_compilers = n_default_compilers;
4247 /* Read specs from a file if there is one. */
4249 machine_suffix = concat4 (spec_machine, dir_separator_str,
4250 spec_version, dir_separator_str);
4251 just_machine_suffix = concat (spec_machine, dir_separator_str);
4253 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4254 /* Read the specs file unless it is a default one. */
4255 if (specs_file != 0 && strcmp (specs_file, "specs"))
4256 read_specs (specs_file);
4258 /* If not cross-compiling, look for startfiles in the standard places. */
4259 /* The fact that these are done here, after reading the specs file,
4260 means that it cannot be found in these directories.
4261 But that's okay. It should never be there anyway. */
4264 #ifdef MD_EXEC_PREFIX
4265 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4266 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4269 #ifdef MD_STARTFILE_PREFIX
4270 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4273 #ifdef MD_STARTFILE_PREFIX_1
4274 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4277 /* If standard_startfile_prefix is relative, base it on
4278 standard_exec_prefix. This lets us move the installed tree
4279 as a unit. If GCC_EXEC_PREFIX is defined, base
4280 standard_startfile_prefix on that as well. */
4281 if (*standard_startfile_prefix == '/'
4282 || *standard_startfile_prefix == DIR_SEPARATOR)
4283 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4287 if (gcc_exec_prefix)
4288 add_prefix (&startfile_prefixes,
4289 concat (gcc_exec_prefix, standard_startfile_prefix),
4291 add_prefix (&startfile_prefixes,
4292 concat3 (standard_exec_prefix,
4294 standard_startfile_prefix),
4298 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4300 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4302 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4303 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4307 /* Now we have the specs.
4308 Set the `valid' bits for switches that match anything in any spec. */
4310 validate_all_switches ();
4312 /* Now that we have the switches and the specs, set
4313 the subdirectory based on the options. */
4314 set_multilib_dir ();
4316 /* Warn about any switches that no pass was interested in. */
4318 for (i = 0; i < n_switches; i++)
4319 if (! switches[i].valid)
4320 error ("unrecognized option `-%s'", switches[i].part1);
4322 /* Obey some of the options. */
4324 if (print_file_name)
4326 printf ("%s\n", find_file (print_file_name));
4330 if (print_prog_name)
4332 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4333 printf ("%s\n", (newname ? newname : print_prog_name));
4337 if (print_multi_lib)
4339 print_multilib_info ();
4343 if (print_multi_directory)
4345 if (multilib_dir == NULL)
4348 printf ("%s\n", multilib_dir);
4354 if (! strcmp (version_string, compiler_version))
4355 fprintf (stderr, "gcc version %s\n", version_string);
4357 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4358 version_string, compiler_version);
4365 fatal ("No input files");
4367 /* Make a place to record the compiler output file names
4368 that correspond to the input files. */
4370 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4371 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4373 /* Record which files were specified explicitly as link input. */
4375 explicit_link_files = xmalloc (n_infiles);
4376 bzero (explicit_link_files, n_infiles);
4378 for (i = 0; i < n_infiles; i++)
4380 register struct compiler *cp = 0;
4381 int this_file_error = 0;
4383 /* Tell do_spec what to substitute for %i. */
4385 input_filename = infiles[i].name;
4386 input_filename_length = strlen (input_filename);
4387 input_file_number = i;
4389 /* Use the same thing in %o, unless cp->spec says otherwise. */
4391 outfiles[i] = input_filename;
4393 /* Figure out which compiler from the file's suffix. */
4395 cp = lookup_compiler (infiles[i].name, input_filename_length,
4396 infiles[i].language);
4400 /* Ok, we found an applicable compiler. Run its spec. */
4401 /* First say how much of input_filename to substitute for %b */
4405 input_basename = input_filename;
4406 for (p = input_filename; *p; p++)
4407 if (*p == '/' || *p == DIR_SEPARATOR)
4408 input_basename = p + 1;
4410 /* Find a suffix starting with the last period,
4411 and set basename_length to exclude that suffix. */
4412 basename_length = strlen (input_basename);
4413 p = input_basename + basename_length;
4414 while (p != input_basename && *p != '.') --p;
4415 if (*p == '.' && p != input_basename)
4417 basename_length = p - input_basename;
4418 input_suffix = p + 1;
4424 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4426 len += strlen (cp->spec[j]);
4428 p = (char *) xmalloc (len + 1);
4431 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4434 strcpy (p + len, cp->spec[j]);
4435 len += strlen (cp->spec[j]);
4438 value = do_spec (p);
4441 this_file_error = 1;
4444 /* If this file's name does not contain a recognized suffix,
4445 record it as explicit linker input. */
4448 explicit_link_files[i] = 1;
4450 /* Clear the delete-on-failure queue, deleting the files in it
4451 if this compilation failed. */
4453 if (this_file_error)
4455 delete_failure_queue ();
4458 /* If this compilation succeeded, don't delete those files later. */
4459 clear_failure_queue ();
4462 /* Run ld to link all the compiler output files. */
4464 if (error_count == 0)
4466 int tmp = execution_count;
4470 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4472 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4473 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4475 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4477 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4478 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4481 for (i = 0; i < n_switches; i++)
4485 obstack_grow (&collect_obstack, " ", 1);
4488 obstack_grow (&collect_obstack, "-", 1);
4489 obstack_grow (&collect_obstack, switches[i].part1,
4490 strlen (switches[i].part1));
4492 for (args = switches[i].args; args && *args; args++)
4494 obstack_grow (&collect_obstack, " ", 1);
4495 obstack_grow (&collect_obstack, *args, strlen (*args));
4498 obstack_grow (&collect_obstack, "\0", 1);
4499 putenv (obstack_finish (&collect_obstack));
4501 value = do_spec (link_command_spec);
4504 linker_was_run = (tmp != execution_count);
4507 /* Warn if a -B option was specified but the prefix was never used. */
4508 unused_prefix_warnings (&exec_prefixes);
4509 unused_prefix_warnings (&startfile_prefixes);
4511 /* If options said don't run linker,
4512 complain about input files to be given to the linker. */
4514 if (! linker_was_run && error_count == 0)
4515 for (i = 0; i < n_infiles; i++)
4516 if (explicit_link_files[i])
4517 error ("%s: linker input file unused since linking not done",
4520 /* Delete some or all of the temporary files we made. */
4523 delete_failure_queue ();
4524 delete_temp_files ();
4526 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4531 /* Find the proper compilation spec for the file name NAME,
4532 whose length is LENGTH. LANGUAGE is the specified language,
4533 or 0 if none specified. */
4535 static struct compiler *
4536 lookup_compiler (name, length, language)
4541 struct compiler *cp;
4543 /* Look for the language, if one is spec'd. */
4546 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4550 if (cp->suffix[0] == '@'
4551 && !strcmp (cp->suffix + 1, language))
4555 error ("language %s not recognized", language);
4558 /* Look for a suffix. */
4559 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4561 if (/* The suffix `-' matches only the file name `-'. */
4562 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4564 (strlen (cp->suffix) < length
4565 /* See if the suffix matches the end of NAME. */
4567 && (!strcmp (cp->suffix,
4568 name + length - strlen (cp->suffix))
4569 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4570 && !strcasecmp (cp->suffix,
4571 name + length - strlen (cp->suffix)))))
4573 && !strcmp (cp->suffix,
4574 name + length - strlen (cp->suffix))))
4577 if (cp->spec[0][0] == '@')
4579 struct compiler *new;
4580 /* An alias entry maps a suffix to a language.
4581 Search for the language; pass 0 for NAME and LENGTH
4582 to avoid infinite recursion if language not found.
4583 Construct the new compiler spec. */
4584 language = cp->spec[0] + 1;
4585 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4586 new->suffix = cp->suffix;
4587 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4588 (char *) new->spec, sizeof new->spec);
4591 /* A non-alias entry: return it. */
4603 register char *value = (char *) malloc (size);
4605 fatal ("virtual memory exhausted");
4610 xrealloc (ptr, size)
4614 register char *value = (char *) realloc (ptr, size);
4616 fatal ("virtual memory exhausted");
4620 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4626 int len1 = strlen (s1);
4627 int len2 = strlen (s2);
4628 char *result = xmalloc (len1 + len2 + 1);
4630 strcpy (result, s1);
4631 strcpy (result + len1, s2);
4632 *(result + len1 + len2) = 0;
4638 concat3 (s1, s2, s3)
4641 return concat (concat (s1, s2), s3);
4645 concat4 (s1, s2, s3, s4)
4646 char *s1, *s2, *s3, *s4;
4648 return concat (concat (s1, s2), concat (s3, s4));
4652 concat6 (s1, s2, s3, s4, s5, s6)
4653 char *s1, *s2, *s3, *s4, *s5, *s6;
4655 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4659 save_string (s, len)
4663 register char *result = xmalloc (len + 1);
4665 bcopy (s, result, len);
4671 pfatal_with_name (name)
4676 if (errno < sys_nerr)
4677 s = concat ("%s: ", sys_errlist[errno]);
4679 s = "cannot open %s";
4684 perror_with_name (name)
4689 if (errno < sys_nerr)
4690 s = concat ("%s: ", sys_errlist[errno]);
4692 s = "cannot open %s";
4702 if (errno < sys_nerr)
4703 s = concat ("installation problem, cannot exec %s: ", sys_errlist[errno]);
4705 s = "installation problem, cannot exec %s";
4709 /* More 'friendly' abort that prints the line and file.
4710 config.h can #define abort fancy_abort if you like that sort of thing. */
4715 fatal ("Internal gcc abort.");
4720 /* Output an error message and exit */
4723 fatal VPROTO((char *format, ...))
4730 VA_START (ap, format);
4733 format = va_arg (ap, char*);
4736 fprintf (stderr, "%s: ", programname);
4737 vfprintf (stderr, format, ap);
4739 fprintf (stderr, "\n");
4740 delete_temp_files ();
4745 error VPROTO((char *format, ...))
4752 VA_START (ap, format);
4755 format = va_arg (ap, char*);
4758 fprintf (stderr, "%s: ", programname);
4759 vfprintf (stderr, format, ap);
4762 fprintf (stderr, "\n");
4765 #else /* not HAVE_VPRINTF */
4768 fatal (msg, arg1, arg2)
4769 char *msg, *arg1, *arg2;
4771 error (msg, arg1, arg2);
4772 delete_temp_files ();
4777 error (msg, arg1, arg2)
4778 char *msg, *arg1, *arg2;
4780 fprintf (stderr, "%s: ", programname);
4781 fprintf (stderr, msg, arg1, arg2);
4782 fprintf (stderr, "\n");
4785 #endif /* not HAVE_VPRINTF */
4789 validate_all_switches ()
4791 struct compiler *comp;
4794 struct spec_list *spec;
4796 for (comp = compilers; comp->spec[0]; comp++)
4799 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4803 if (c == '%' && *p == '{')
4804 /* We have a switch spec. */
4805 validate_switches (p + 1);
4809 /* look through the linked list of extra specs read from the specs file */
4810 for (spec = specs; spec ; spec = spec->next)
4814 if (c == '%' && *p == '{')
4815 /* We have a switch spec. */
4816 validate_switches (p + 1);
4819 p = link_command_spec;
4821 if (c == '%' && *p == '{')
4822 /* We have a switch spec. */
4823 validate_switches (p + 1);
4825 /* Now notice switches mentioned in the machine-specific specs. */
4829 if (c == '%' && *p == '{')
4830 /* We have a switch spec. */
4831 validate_switches (p + 1);
4835 if (c == '%' && *p == '{')
4836 /* We have a switch spec. */
4837 validate_switches (p + 1);
4841 if (c == '%' && *p == '{')
4842 /* We have a switch spec. */
4843 validate_switches (p + 1);
4845 p = signed_char_spec;
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);
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);
4882 /* Look at the switch-name that comes after START
4883 and mark as valid all supplied switches that match it. */
4886 validate_switches (start)
4889 register char *p = start;
4904 while (*p != ':' && *p != '}') p++;
4908 else if (p[-1] == '*')
4910 /* Mark all matching switches as valid. */
4912 for (i = 0; i < n_switches; i++)
4913 if (!strncmp (switches[i].part1, filter, p - filter))
4914 switches[i].valid = 1;
4918 /* Mark an exact matching switch as valid. */
4919 for (i = 0; i < n_switches; i++)
4921 if (!strncmp (switches[i].part1, filter, p - filter)
4922 && switches[i].part1[p - filter] == 0)
4923 switches[i].valid = 1;
4928 /* Check whether a particular argument was used. */
4937 for (i = 0; i < n_switches; i++)
4938 if (! strncmp (switches[i].part1, p, len)
4939 && strlen (switches[i].part1) == len)
4944 /* Work out the subdirectory to use based on the
4945 options. The format of multilib_select is a list of elements.
4946 Each element is a subdirectory name followed by a list of options
4947 followed by a semicolon. gcc will consider each line in turn. If
4948 none of the options beginning with an exclamation point are
4949 present, and all of the other options are present, that
4950 subdirectory will be used. */
4955 char *p = multilib_select;
4957 char *this_path, *this_arg;
4962 /* Ignore newlines. */
4969 /* Get the initial path. */
4977 this_path_len = p - this_path;
4979 /* Check the arguments. */
4994 while (*p != ' ' && *p != ';')
5001 if (*this_arg == '!')
5002 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5004 failed = ! used_arg (this_arg, p - this_arg);
5012 if (this_path_len != 1
5013 || this_path[0] != '.')
5015 multilib_dir = xmalloc (this_path_len + 1);
5016 strncpy (multilib_dir, this_path, this_path_len);
5017 multilib_dir[this_path_len] = '\0';
5026 /* Print out the multiple library subdirectory selection
5027 information. This prints out a series of lines. Each line looks
5028 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5029 required. Only the desired options are printed out, the negative
5030 matches. The options are print without a leading dash. There are
5031 no spaces to make it easy to use the information in the shell.
5032 Each subdirectory is printed only once. This assumes the ordering
5033 generated by the genmultilib script. */
5036 print_multilib_info ()
5038 char *p = multilib_select;
5039 char *last_path, *this_path;
5040 int last_path_len, skip, use_arg;
5044 /* Ignore newlines. */
5051 /* Get the initial path. */
5060 /* If this is a duplicate, skip it. */
5061 skip = (p - this_path == last_path_len
5062 && ! strncmp (last_path, this_path, last_path_len));
5064 last_path = this_path;
5065 last_path_len = p - this_path;
5071 for (p1 = last_path; p1 < p; p1++)
5090 use_arg = *p != '!';
5095 while (*p != ' ' && *p != ';')