1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
40 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Include multi-lib information. */
64 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
67 #define WTERMSIG(S) ((S) & 0x7f)
70 #define WIFEXITED(S) (((S) & 0xff) == 0)
73 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
76 /* Add prototype support. */
78 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
79 #define PROTO(ARGS) ARGS
81 #define PROTO(ARGS) ()
87 #define PVPROTO(ARGS) ARGS
88 #define VPROTO(ARGS) ARGS
89 #define VA_START(va_list,var) va_start(va_list,var)
91 #define PVPROTO(ARGS) ()
92 #define VPROTO(ARGS) (va_alist) va_dcl
93 #define VA_START(va_list,var) va_start(va_list)
97 /* Define a generic NULL if one hasn't already been defined. */
103 /* Define O_RDONLY if the system hasn't defined it for us. */
109 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
110 #define GENERIC_PTR void *
112 #define GENERIC_PTR char *
117 #define NULL_PTR ((GENERIC_PTR)0)
124 /* On MSDOS, write temp files in current dir
125 because there's no place else we can expect to use. */
132 /* Test if something is a normal file. */
134 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
137 /* Test if something is a directory. */
139 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
142 /* By default there is no special suffix for executables. */
143 #ifndef EXECUTABLE_SUFFIX
144 #define EXECUTABLE_SUFFIX ""
147 /* By default, the suffix for object files is the letter "o". */
148 #ifndef OBJECT_SUFFIX
149 #define OBJECT_SUFFIX "o"
152 /* By default, colon separates directories in a path. */
153 #ifndef PATH_SEPARATOR
154 #define PATH_SEPARATOR ':'
157 #ifndef DIR_SEPARATOR
158 #define DIR_SEPARATOR '/'
161 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
163 #define obstack_chunk_alloc xmalloc
164 #define obstack_chunk_free free
167 extern char *getenv ();
174 #if defined(bsd4_4) || defined(__NetBSD__)
175 extern const char *const sys_errlist[];
177 extern char *sys_errlist[];
180 extern int execv (), execvp ();
182 /* If a stage of compilation returns an exit status >= 1,
183 compilation of that file ceases. */
185 #define MIN_FATAL_STATUS 1
187 /* Flag saying to print the full filename of this file
188 as found through our usual search mechanism. */
190 static char *print_file_name = NULL;
192 /* As print_file_name, but search for executable file. */
194 static char *print_prog_name = NULL;
196 /* Flag saying to print the relative path we'd use to
197 find libgcc.a given the current compiler flags. */
199 static int print_multi_directory;
201 /* Flag saying to print the list of subdirectories and
202 compiler flags used to select them in a standard form. */
204 static int print_multi_lib;
206 /* Flag indicating whether we should print the command and arguments */
208 static int verbose_flag;
210 /* Nonzero means write "temp" files in source directory
211 and use the source file's name in them, and don't delete them. */
213 static int save_temps_flag;
215 /* The compiler version. */
217 static char *compiler_version;
219 /* The target version specified with -V */
221 static char *spec_version = DEFAULT_TARGET_VERSION;
223 /* The target machine specified with -b. */
225 static char *spec_machine = DEFAULT_TARGET_MACHINE;
227 /* Nonzero if cross-compiling.
228 When -b is used, the value comes from the `specs' file. */
231 static int cross_compile = 1;
233 static int cross_compile = 0;
236 /* The number of errors that have occurred; the link phase will not be
237 run if this is non-zero. */
238 static int error_count = 0;
240 /* This is the obstack which we use to allocate many strings. */
242 static struct obstack obstack;
244 /* This is the obstack to build an environment variable to pass to
245 collect2 that describes all of the relevant switches of what to
246 pass the compiler in building the list of pointers to constructors
249 static struct obstack collect_obstack;
251 extern char *version_string;
253 /* Forward declaration for prototypes. */
256 static void set_spec PROTO((char *, char *));
257 static struct compiler *lookup_compiler PROTO((char *, int, char *));
258 static char *find_a_file PROTO((struct path_prefix *, char *, int));
259 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
260 static char *skip_whitespace PROTO((char *));
261 static void record_temp_file PROTO((char *, int, int));
262 static void delete_if_ordinary PROTO((char *));
263 static void delete_temp_files PROTO((void));
264 static void delete_failure_queue PROTO((void));
265 static void clear_failure_queue PROTO((void));
266 static char *choose_temp_base_try PROTO((char *, char *));
267 static void choose_temp_base PROTO((void));
268 static int check_live_switch PROTO((int, int));
269 static char *handle_braces PROTO((char *));
270 static char *save_string PROTO((char *, int));
271 static char *concat PROTO((char *, char *));
272 static char *concat3 PROTO((char *, char *, char *));
273 static char *concat4 PROTO((char *, char *, char *, char *));
274 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
276 static int do_spec PROTO((char *));
277 static int do_spec_1 PROTO((char *, int, char *));
278 static char *find_file PROTO((char *));
279 static int is_directory PROTO((char *, char *, int));
280 static void validate_switches PROTO((char *));
281 static void validate_all_switches PROTO((void));
282 static void give_switch PROTO((int, int));
283 static int used_arg PROTO((char *, int));
284 static void set_multilib_dir PROTO((void));
285 static void print_multilib_info PROTO((void));
286 static void pfatal_with_name PROTO((char *));
287 static void perror_with_name PROTO((char *));
288 static void perror_exec PROTO((char *));
290 static void fatal PVPROTO((char *, ...));
291 static void error PVPROTO((char *, ...));
293 /* We must not provide any prototype here, even if ANSI C. */
294 static void fatal PROTO(());
295 static void error PROTO(());
302 /* Specs are strings containing lines, each of which (if not blank)
303 is made up of a program name, and arguments separated by spaces.
304 The program name must be exact and start from root, since no path
305 is searched and it is unreliable to depend on the current working directory.
306 Redirection of input or output is not supported; the subprograms must
307 accept filenames saying what files to read and write.
309 In addition, the specs can contain %-sequences to substitute variable text
310 or for conditional text. Here is a table of all defined %-sequences.
311 Note that spaces are not generated automatically around the results of
312 expanding these sequences; therefore, you can concatenate them together
313 or with constant text in a single argument.
315 %% substitute one % into the program name or argument.
316 %i substitute the name of the input file being processed.
317 %b substitute the basename of the input file being processed.
318 This is the substring up to (and not including) the last period
319 and not including the directory.
320 %g substitute the temporary-file-name-base. This is a string chosen
321 once per compilation. Different temporary file names are made by
322 concatenation of constant strings on the end, as in `%g.s'.
323 %g also has the same effect of %d.
324 %u like %g, but make the temporary file name unique.
325 %U returns the last file name generated with %u.
326 %d marks the argument containing or following the %d as a
327 temporary file name, so that that file will be deleted if CC exits
328 successfully. Unlike %g, this contributes no text to the argument.
329 %w marks the argument containing or following the %w as the
330 "output file" of this compilation. This puts the argument
331 into the sequence of arguments that %o will substitute later.
333 like %{...} but mark last argument supplied within
334 as a file to be deleted on failure.
335 %o substitutes the names of all the output files, with spaces
336 automatically placed around them. You should write spaces
337 around the %o as well or the results are undefined.
338 %o is for use in the specs for running the linker.
339 Input files whose names have no recognized suffix are not compiled
340 at all, but they are included among the output files, so they will
342 %O substitutes the suffix for object files.
343 %p substitutes the standard macro predefinitions for the
344 current target machine. Use this when running cpp.
345 %P like %p, but puts `__' before and after the name of each macro.
346 (Except macros that already have __.)
348 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
349 %s current argument is the name of a library or startup file of some sort.
350 Search for that file in a standard list of directories
351 and substitute the full name found.
352 %eSTR Print STR as an error message. STR is terminated by a newline.
353 Use this when inconsistent options are detected.
354 %x{OPTION} Accumulate an option for %X.
355 %X Output the accumulated linker options specified by compilations.
356 %Y Output the accumulated assembler options specified by compilations.
357 %Z Output the accumulated preprocessor options specified by compilations.
358 %v1 Substitute the major version number of GCC.
359 (For version 2.5.n, this is 2.)
360 %v2 Substitute the minor version number of GCC.
361 (For version 2.5.n, this is 5.)
362 %a process ASM_SPEC as a spec.
363 This allows config.h to specify part of the spec for running as.
364 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
365 used here. This can be used to run a post-processor after the
366 assembler has done it's job.
367 %D Dump out a -L option for each directory in startfile_prefixes.
368 If multilib_dir is set, extra entries are generated with it affixed.
369 %l process LINK_SPEC as a spec.
370 %L process LIB_SPEC as a spec.
371 %G process LIBGCC_SPEC as a spec.
372 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
373 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
374 %c process SIGNED_CHAR_SPEC as a spec.
375 %C process CPP_SPEC as a spec. A capital C is actually used here.
376 %1 process CC1_SPEC as a spec.
377 %2 process CC1PLUS_SPEC as a spec.
378 %| output "-" if the input for the current command is coming from a pipe.
379 %* substitute the variable part of a matched option. (See below.)
380 Note that each comma in the substituted string is replaced by
382 %{S} substitutes the -S switch, if that switch was given to CC.
383 If that switch was not specified, this substitutes nothing.
384 Here S is a metasyntactic variable.
385 %{S*} substitutes all the switches specified to CC whose names start
386 with -S. This is used for -o, -D, -I, etc; switches that take
387 arguments. CC considers `-o foo' as being one switch whose
388 name starts with `o'. %{o*} would substitute this text,
389 including the space; thus, two arguments would be generated.
390 %{S*:X} substitutes X if one or more switches whose names start with -S are
391 specified to CC. Note that the tail part of the -S option
392 (i.e. the part matched by the `*') will be substituted for each
393 occurrence of %* within X.
394 %{S:X} substitutes X, but only if the -S switch was given to CC.
395 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
396 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
397 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
398 %{.S:X} substitutes X, but only if processing a file with suffix S.
399 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
400 %(Spec) processes a specification defined in a specs file as *Spec:
401 %[Spec] as above, but put __ around -D arguments
403 The conditional text X in a %{S:X} or %{!S:X} construct may contain
404 other nested % constructs or spaces, or even newlines. They are
405 processed as usual, as described above.
407 The -O, -f, -m, and -W switches are handled specifically in these
408 constructs. If another value of -O or the negated form of a -f, -m, or
409 -W switch is found later in the command line, the earlier switch
410 value is ignored, except with {S*} where S is just one letter; this
411 passes all matching options.
413 The character | is used to indicate that a command should be piped to
414 the following command, but only if -pipe is specified.
416 Note that it is built into CC which switches take arguments and which
417 do not. You might think it would be useful to generalize this to
418 allow each compiler's spec to say which switches take arguments. But
419 this cannot be done in a consistent fashion. CC cannot even decide
420 which input files have been specified without knowing which switches
421 take arguments, and it must know which input files to compile in order
422 to tell which compilers to run.
424 CC also knows implicitly that arguments starting in `-l' are to be
425 treated as compiler output files, and passed to the linker in their
426 proper position among the other output files. */
428 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
430 /* config.h can define ASM_SPEC to provide extra args to the assembler
431 or extra switch-translations. */
436 /* config.h can define ASM_FINAL_SPEC to run a post processor after
437 the assembler has run. */
438 #ifndef ASM_FINAL_SPEC
439 #define ASM_FINAL_SPEC ""
442 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
443 or extra switch-translations. */
448 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
449 or extra switch-translations. */
454 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
455 or extra switch-translations. */
457 #define CC1PLUS_SPEC ""
460 /* config.h can define LINK_SPEC to provide extra args to the linker
461 or extra switch-translations. */
466 /* config.h can define LIB_SPEC to override the default libraries. */
468 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
471 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
474 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
475 /* Have gcc do the search for libgcc.a. */
476 #define LIBGCC_SPEC "%{!shared:libgcc.a%s}"
478 #define LIBGCC_SPEC "%{!shared:-lgcc}"
482 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
483 #ifndef STARTFILE_SPEC
484 #define STARTFILE_SPEC \
485 "%{!shared:%{pg:gcrt0.%O%s}%{!pg:%{p:mcrt0.%O%s}%{!p:crt0.%O%s}}}"
488 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
489 Make the string nonempty to require spaces there. */
490 #ifndef SWITCHES_NEED_SPACES
491 #define SWITCHES_NEED_SPACES ""
494 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
496 #define ENDFILE_SPEC ""
499 /* This spec is used for telling cpp whether char is signed or not. */
500 #ifndef SIGNED_CHAR_SPEC
501 /* Use #if rather than ?:
502 because MIPS C compiler rejects like ?: in initializers. */
503 #if DEFAULT_SIGNED_CHAR
504 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
506 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
510 /* MULTILIB_SELECT comes from multilib.h. It gives a
511 string interpreted by set_multilib_dir to select a library
512 subdirectory based on the compiler options. */
513 #ifndef MULTILIB_SELECT
514 #define MULTILIB_SELECT ". ;"
517 static char *cpp_spec = CPP_SPEC;
518 static char *cpp_predefines = CPP_PREDEFINES;
519 static char *cc1_spec = CC1_SPEC;
520 static char *cc1plus_spec = CC1PLUS_SPEC;
521 static char *signed_char_spec = SIGNED_CHAR_SPEC;
522 static char *asm_spec = ASM_SPEC;
523 static char *asm_final_spec = ASM_FINAL_SPEC;
524 static char *link_spec = LINK_SPEC;
525 static char *lib_spec = LIB_SPEC;
526 static char *libgcc_spec = LIBGCC_SPEC;
527 static char *endfile_spec = ENDFILE_SPEC;
528 static char *startfile_spec = STARTFILE_SPEC;
529 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
530 static char *multilib_select = MULTILIB_SELECT;
532 /* This defines which switch letters take arguments. */
534 #ifndef SWITCH_TAKES_ARG
535 #define SWITCH_TAKES_ARG(CHAR) \
536 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
537 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
538 || (CHAR) == 'I' || (CHAR) == 'm' \
539 || (CHAR) == 'L' || (CHAR) == 'A')
542 /* This defines which multi-letter switches take arguments. */
544 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
545 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
546 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
547 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
548 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
549 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
550 || !strcmp (STR, "isystem"))
552 #ifndef WORD_SWITCH_TAKES_ARG
553 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
556 /* Record the mapping from file suffixes for compilation specs. */
560 char *suffix; /* Use this compiler for input files
561 whose names end in this suffix. */
563 char *spec[4]; /* To use this compiler, concatenate these
564 specs and pass to do_spec. */
567 /* Pointer to a vector of `struct compiler' that gives the spec for
568 compiling a file, based on its suffix.
569 A file that does not end in any of these suffixes will be passed
570 unchanged to the loader and nothing else will be done to it.
572 An entry containing two 0s is used to terminate the vector.
574 If multiple entries match a file, the last matching one is used. */
576 static struct compiler *compilers;
578 /* Number of entries in `compilers', not counting the null terminator. */
580 static int n_compilers;
582 /* The default list of file name suffixes and their compilation specs. */
584 static struct compiler default_compilers[] =
588 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
589 %{C:%{!E:%eGNU C does not support -C without using -E}}\
590 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
591 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
592 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
593 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
594 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
595 %{traditional-cpp:-traditional}\
596 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
597 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
598 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
599 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
600 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
601 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
603 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
604 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
605 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
606 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
607 %{!pipe:%g.s} %A\n }}}}"},
609 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
610 %{C:%{!E:%eGNU C does not support -C without using -E}}\
611 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
612 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
613 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
614 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
615 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
616 %{traditional-cpp:-traditional}\
617 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
619 %{!E:%e-E required when input is from standard input}"},
620 {".m", "@objective-c"},
622 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
628 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
629 %{traditional-cpp:-traditional}\
630 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
631 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
632 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
633 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
634 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
635 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
636 -lang-objc %{gen-decls} \
638 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
639 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
640 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
641 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
642 %{!pipe:%g.s} %A\n }}}}"},
645 "%{!E:%eCompilation of header file requested} \
646 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
647 %{C:%{!E:%eGNU C does not support -C without using -E}}\
648 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
649 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
650 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
651 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
652 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
653 %{traditional-cpp:-traditional}\
654 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
659 "cpp -lang-chill %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
660 %{C:%{!E:%eGNU CHILL does not support -C without using -E}}\
661 -undef -D__GNUCHILL__=%v1 -D__GNUC_MINOR__=%v2\
662 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
663 %{traditional-cpp:-traditional} %{!undef:%{!ansi:%p} %P} %{trigraphs}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 %i %{!E:%g.i}%{E:%W{o*}} \n",
666 "%{!E:cc1chill %g.i %1 \
667 %{!Q:-quiet} -dumpbase %b.ch %{d*} %{m*} %{a}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{itu} \
669 %{v:-version} %{pg:-p} %{p} %{f*} %{I*} \
671 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
672 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
673 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y %{keep-local-as-symbols:-L} \
674 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
675 %{!pipe:%g.s} %A\n }}"},
682 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
683 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
684 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
685 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
686 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
687 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
688 %{traditional-cpp:-traditional} %{trigraphs}\
689 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
690 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
691 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
692 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
693 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
694 %{traditional} %{v:-version} %{pg:-p} %{p}\
695 %{f*} %{+e*} %{aux-info*}\
696 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
697 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
698 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
699 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
700 %{!pipe:%g.s} %A\n }}}}"},
701 {".i", "@cpp-output"},
703 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
704 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
705 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
707 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
708 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
709 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
710 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
711 %{!pipe:%g.s} %A\n }}}}"},
712 {".ii", "@c++-cpp-output"},
714 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
715 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
716 %{traditional} %{v:-version} %{pg:-p} %{p}\
717 %{f*} %{+e*} %{aux-info*}\
718 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
719 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
720 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
721 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
722 %{!pipe:%g.s} %A\n }}}}"},
723 {".s", "@assembler"},
725 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
726 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
728 {".S", "@assembler-with-cpp"},
729 {"@assembler-with-cpp",
730 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
731 %{C:%{!E:%eGNU C does not support -C without using -E}}\
732 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
733 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
734 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
735 %{traditional-cpp:-traditional}\
736 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
737 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
738 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
739 %{c:%W{o*}%{!o*:-o %w%b.%O}}%{!c:-o %d%w%u.%O}\
740 %{!pipe:%g.s} %A\n }}}}"},
745 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
746 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
748 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
749 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
750 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
751 %{c:%W{o*}%{!o*:-o %w%b.%O}}\
752 %{!c:-o %d%w%u.%O} %{!pipe:%g.s} %A\n}}}}}} "},
753 /* Mark end of table */
757 /* Number of elements in default_compilers, not counting the terminator. */
759 static int n_default_compilers
760 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
762 /* Here is the spec for running the linker, after compiling all files. */
764 /* -u* was put back because both BSD and SysV seem to support it. */
765 /* %{static:} simply prevents an error message if the target machine
766 doesn't handle -static. */
767 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
768 scripts which exist in user specified directories, or in standard
770 #ifdef LINK_LIBGCC_SPECIAL
771 /* Don't generate -L options. */
772 static char *link_command_spec = "\
774 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
775 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
776 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
777 %{L*} %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
780 static char *link_command_spec = "\
782 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
783 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
784 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
785 %{L*} %D %{T*} %o %{!nostdlib:%G %L %G %{!A:%E}}\n }}}}}}";
788 /* A vector of options to give to the linker.
789 These options are accumulated by %x,
790 and substituted into the linker command with %X. */
791 static int n_linker_options;
792 static char **linker_options;
794 /* A vector of options to give to the assembler.
795 These options are accumulated by -Wa,
796 and substituted into the assembler command with %Y. */
797 static int n_assembler_options;
798 static char **assembler_options;
800 /* A vector of options to give to the preprocessor.
801 These options are accumulated by -Wp,
802 and substituted into the preprocessor command with %Z. */
803 static int n_preprocessor_options;
804 static char **preprocessor_options;
806 /* Define how to map long options into short ones. */
808 /* This structure describes one mapping. */
811 /* The long option's name. */
813 /* The equivalent short option. */
815 /* Argument info. A string of flag chars; NULL equals no options.
816 a => argument required.
817 o => argument optional.
818 j => join argument to equivalent, making one word.
819 * => require other text after NAME as an argument. */
823 /* This is the table of mappings. Mappings are tried sequentially
824 for each option encountered; the first one that matches, wins. */
826 struct option_map option_map[] =
828 {"--all-warnings", "-Wall", 0},
829 {"--ansi", "-ansi", 0},
830 {"--assemble", "-S", 0},
831 {"--assert", "-A", "a"},
832 {"--comments", "-C", 0},
833 {"--compile", "-c", 0},
834 {"--debug", "-g", "oj"},
835 {"--define-macro", "-D", "a"},
836 {"--dependencies", "-M", 0},
837 {"--dump", "-d", "a"},
838 {"--dumpbase", "-dumpbase", "a"},
839 {"--entry", "-e", 0},
840 {"--extra-warnings", "-W", 0},
841 {"--for-assembler", "-Wa", "a"},
842 {"--for-linker", "-Xlinker", "a"},
843 {"--force-link", "-u", "a"},
844 {"--imacros", "-imacros", "a"},
845 {"--include", "-include", "a"},
846 {"--include-barrier", "-I-", 0},
847 {"--include-directory", "-I", "a"},
848 {"--include-directory-after", "-idirafter", "a"},
849 {"--include-prefix", "-iprefix", "a"},
850 {"--include-with-prefix", "-iwithprefix", "a"},
851 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
852 {"--include-with-prefix-after", "-iwithprefix", "a"},
853 {"--language", "-x", "a"},
854 {"--library-directory", "-L", "a"},
855 {"--machine", "-m", "aj"},
856 {"--machine-", "-m", "*j"},
857 {"--no-line-commands", "-P", 0},
858 {"--no-precompiled-includes", "-noprecomp", 0},
859 {"--no-standard-includes", "-nostdinc", 0},
860 {"--no-standard-libraries", "-nostdlib", 0},
861 {"--no-warnings", "-w", 0},
862 {"--optimize", "-O", "oj"},
863 {"--output", "-o", "a"},
864 {"--pedantic", "-pedantic", 0},
865 {"--pedantic-errors", "-pedantic-errors", 0},
866 {"--pipe", "-pipe", 0},
867 {"--prefix", "-B", "a"},
868 {"--preprocess", "-E", 0},
869 {"--print-file-name", "-print-file-name=", "aj"},
870 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
871 {"--print-missing-file-dependencies", "-MG", 0},
872 {"--print-multi-lib", "-print-multi-lib", 0},
873 {"--print-multi-directory", "-print-multi-directory", 0},
874 {"--print-prog-name", "-print-prog-name=", "aj"},
875 {"--profile", "-p", 0},
876 {"--profile-blocks", "-a", 0},
877 {"--quiet", "-q", 0},
878 {"--save-temps", "-save-temps", 0},
879 {"--shared", "-shared", 0},
880 {"--silent", "-q", 0},
881 {"--static", "-static", 0},
882 {"--symbolic", "-symbolic", 0},
883 {"--target", "-b", "a"},
884 {"--trace-includes", "-H", 0},
885 {"--traditional", "-traditional", 0},
886 {"--traditional-cpp", "-traditional-cpp", 0},
887 {"--trigraphs", "-trigraphs", 0},
888 {"--undefine-macro", "-U", "a"},
889 {"--use-version", "-V", "a"},
890 {"--user-dependencies", "-MM", 0},
891 {"--verbose", "-v", 0},
892 {"--version", "-dumpversion", 0},
893 {"--warn-", "-W", "*j"},
894 {"--write-dependencies", "-MD", 0},
895 {"--write-user-dependencies", "-MMD", 0},
899 /* Translate the options described by *ARGCP and *ARGVP.
900 Make a new vector and store it back in *ARGVP,
901 and store its length in *ARGVC. */
904 translate_options (argcp, argvp)
910 char **argv = *argvp;
911 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
915 newv[newindex++] = argv[i++];
919 /* Translate -- options. */
920 if (argv[i][0] == '-' && argv[i][1] == '-')
922 /* Find a mapping that applies to this option. */
923 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
925 int optlen = strlen (option_map[j].name);
926 int arglen = strlen (argv[i]);
927 int complen = arglen > optlen ? optlen : arglen;
928 char *arginfo = option_map[j].arg_info;
933 if (!strncmp (argv[i], option_map[j].name, complen))
940 k < sizeof (option_map) / sizeof (option_map[0]);
942 if (strlen (option_map[k].name) >= arglen
943 && !strncmp (argv[i], option_map[k].name, arglen))
945 error ("Ambiguous abbreviation %s", argv[i]);
949 if (k != sizeof (option_map) / sizeof (option_map[0]))
955 /* If the option has an argument, accept that. */
956 if (argv[i][optlen] == '=')
957 arg = argv[i] + optlen + 1;
959 /* If this mapping requires extra text at end of name,
960 accept that as "argument". */
961 else if (index (arginfo, '*') != 0)
962 arg = argv[i] + optlen;
964 /* Otherwise, extra text at end means mismatch.
965 Try other mappings. */
970 else if (index (arginfo, '*') != 0)
972 error ("Incomplete `%s' option", option_map[j].name);
976 /* Handle arguments. */
977 if (index (arginfo, 'a') != 0)
983 error ("Missing argument to `%s' option",
991 else if (index (arginfo, '*') != 0)
993 else if (index (arginfo, 'o') == 0)
996 error ("Extraneous argument to `%s' option",
1001 /* Store the translation as one argv elt or as two. */
1002 if (arg != 0 && index (arginfo, 'j') != 0)
1003 newv[newindex++] = concat (option_map[j].equivalent, arg);
1006 newv[newindex++] = option_map[j].equivalent;
1007 newv[newindex++] = arg;
1010 newv[newindex++] = option_map[j].equivalent;
1018 /* Handle old-fashioned options--just copy them through,
1019 with their arguments. */
1020 else if (argv[i][0] == '-')
1022 char *p = argv[i] + 1;
1026 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1027 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1028 else if (WORD_SWITCH_TAKES_ARG (p))
1029 nskip += WORD_SWITCH_TAKES_ARG (p);
1030 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1033 else if (! strcmp (p, "Xlinker"))
1036 /* Watch out for an option at the end of the command line that
1037 is missing arguments, and avoid skipping past the end of the
1039 if (nskip + i > argc)
1044 newv[newindex++] = argv[i++];
1049 /* Ordinary operands, or +e options. */
1050 newv[newindex++] = argv[i++];
1059 /* Read compilation specs from a file named FILENAME,
1060 replacing the default ones.
1062 A suffix which starts with `*' is a definition for
1063 one of the machine-specific sub-specs. The "suffix" should be
1064 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1065 The corresponding spec is stored in asm_spec, etc.,
1066 rather than in the `compilers' vector.
1068 Anything invalid in the file is a fatal error. */
1071 read_specs (filename)
1075 struct stat statbuf;
1080 fprintf (stderr, "Reading specs from %s\n", filename);
1082 /* Open and stat the file. */
1083 desc = open (filename, O_RDONLY, 0);
1085 pfatal_with_name (filename);
1086 if (stat (filename, &statbuf) < 0)
1087 pfatal_with_name (filename);
1089 /* Read contents of file into BUFFER. */
1090 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1091 read (desc, buffer, (unsigned) statbuf.st_size);
1092 buffer[statbuf.st_size] = 0;
1095 /* Scan BUFFER for specs, putting them in the vector. */
1101 char *in, *out, *p1, *p2;
1103 /* Advance P in BUFFER to the next nonblank nocomment line. */
1104 p = skip_whitespace (p);
1108 /* Find the colon that should end the suffix. */
1110 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1111 /* The colon shouldn't be missing. */
1113 fatal ("specs file malformed after %d characters", p1 - buffer);
1114 /* Skip back over trailing whitespace. */
1116 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1117 /* Copy the suffix to a string. */
1118 suffix = save_string (p, p2 - p);
1119 /* Find the next line. */
1120 p = skip_whitespace (p1 + 1);
1122 fatal ("specs file malformed after %d characters", p - buffer);
1124 /* Find next blank line. */
1125 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1126 /* Specs end at the blank line and do not include the newline. */
1127 spec = save_string (p, p1 - p);
1130 /* Delete backslash-newline sequences from the spec. */
1135 if (in[0] == '\\' && in[1] == '\n')
1137 else if (in[0] == '#')
1139 while (*in && *in != '\n') in++;
1146 if (suffix[0] == '*')
1148 if (! strcmp (suffix, "*link_command"))
1149 link_command_spec = spec;
1151 set_spec (suffix + 1, spec);
1155 /* Add this pair to the vector. */
1157 = ((struct compiler *)
1158 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1159 compilers[n_compilers].suffix = suffix;
1160 bzero ((char *) compilers[n_compilers].spec,
1161 sizeof compilers[n_compilers].spec);
1162 compilers[n_compilers].spec[0] = spec;
1164 bzero ((char *) &compilers[n_compilers],
1165 sizeof compilers[n_compilers]);
1169 link_command_spec = spec;
1172 if (link_command_spec == 0)
1173 fatal ("spec file has no spec for linking");
1182 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1183 be considered whitespace. */
1184 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1186 else if (*p == '\n' || *p == ' ' || *p == '\t')
1190 while (*p != '\n') p++;
1200 /* Structure to keep track of the specs that have been defined so far. These
1201 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1205 char *name; /* Name of the spec. */
1206 char *spec; /* The spec itself. */
1207 struct spec_list *next; /* Next spec in linked list. */
1210 /* List of specs that have been defined so far. */
1212 static struct spec_list *specs = (struct spec_list *) 0;
1214 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1215 removed; If the spec starts with a + then SPEC is added to the end of the
1219 set_spec (name, spec)
1223 struct spec_list *sl;
1226 /* See if the spec already exists */
1227 for (sl = specs; sl; sl = sl->next)
1228 if (strcmp (sl->name, name) == 0)
1233 /* Not found - make it */
1234 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1235 sl->name = save_string (name, strlen (name));
1236 sl->spec = save_string ("", 0);
1241 old_spec = sl->spec;
1242 if (name && spec[0] == '+' && isspace (spec[1]))
1243 sl->spec = concat (old_spec, spec + 1);
1245 sl->spec = save_string (spec, strlen (spec));
1247 if (! strcmp (name, "asm"))
1248 asm_spec = sl->spec;
1249 else if (! strcmp (name, "asm_final"))
1250 asm_final_spec = sl->spec;
1251 else if (! strcmp (name, "cc1"))
1252 cc1_spec = sl->spec;
1253 else if (! strcmp (name, "cc1plus"))
1254 cc1plus_spec = sl->spec;
1255 else if (! strcmp (name, "cpp"))
1256 cpp_spec = sl->spec;
1257 else if (! strcmp (name, "endfile"))
1258 endfile_spec = sl->spec;
1259 else if (! strcmp (name, "lib"))
1260 lib_spec = sl->spec;
1261 else if (! strcmp (name, "libgcc"))
1262 libgcc_spec = sl->spec;
1263 else if (! strcmp (name, "link"))
1264 link_spec = sl->spec;
1265 else if (! strcmp (name, "predefines"))
1266 cpp_predefines = sl->spec;
1267 else if (! strcmp (name, "signed_char"))
1268 signed_char_spec = sl->spec;
1269 else if (! strcmp (name, "startfile"))
1270 startfile_spec = sl->spec;
1271 else if (! strcmp (name, "switches_need_spaces"))
1272 switches_need_spaces = sl->spec;
1273 else if (! strcmp (name, "cross_compile"))
1274 cross_compile = atoi (sl->spec);
1275 else if (! strcmp (name, "multilib"))
1276 multilib_select = sl->spec;
1277 /* Free the old spec */
1282 /* Accumulate a command (program name and args), and run it. */
1284 /* Vector of pointers to arguments in the current line of specifications. */
1286 static char **argbuf;
1288 /* Number of elements allocated in argbuf. */
1290 static int argbuf_length;
1292 /* Number of elements in argbuf currently in use (containing args). */
1294 static int argbuf_index;
1296 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1297 temp file. Used only if MKTEMP_EACH_FILE. */
1299 static struct temp_name {
1300 char *suffix; /* suffix associated with the code. */
1301 int length; /* strlen (suffix). */
1302 int unique; /* Indicates whether %g or %u/%U was used. */
1303 char *filename; /* associated filename. */
1304 int filename_length; /* strlen (filename). */
1305 struct temp_name *next;
1308 /* Number of commands executed so far. */
1310 static int execution_count;
1312 /* Number of commands that exited with a signal. */
1314 static int signal_count;
1316 /* Name with which this program was invoked. */
1318 static char *programname;
1320 /* Structures to keep track of prefixes to try when looking for files. */
1324 char *prefix; /* String to prepend to the path. */
1325 struct prefix_list *next; /* Next in linked list. */
1326 int require_machine_suffix; /* Don't use without machine_suffix. */
1327 /* 2 means try both machine_suffix and just_machine_suffix. */
1328 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1333 struct prefix_list *plist; /* List of prefixes to try */
1334 int max_len; /* Max length of a prefix in PLIST */
1335 char *name; /* Name of this list (used in config stuff) */
1338 /* List of prefixes to try when looking for executables. */
1340 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1342 /* List of prefixes to try when looking for startup (crt0) files. */
1344 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1346 /* List of prefixes to try when looking for include files. */
1348 static struct path_prefix include_prefixes = { 0, 0, "include" };
1350 /* Suffix to attach to directories searched for commands.
1351 This looks like `MACHINE/VERSION/'. */
1353 static char *machine_suffix = 0;
1355 /* Suffix to attach to directories searched for commands.
1356 This is just `MACHINE/'. */
1358 static char *just_machine_suffix = 0;
1360 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1362 static char *gcc_exec_prefix;
1364 /* Default prefixes to attach to command names. */
1366 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1367 #undef MD_EXEC_PREFIX
1368 #undef MD_STARTFILE_PREFIX
1369 #undef MD_STARTFILE_PREFIX_1
1372 #ifndef STANDARD_EXEC_PREFIX
1373 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1374 #endif /* !defined STANDARD_EXEC_PREFIX */
1376 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1377 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1378 #ifdef MD_EXEC_PREFIX
1379 static char *md_exec_prefix = MD_EXEC_PREFIX;
1382 #ifndef STANDARD_STARTFILE_PREFIX
1383 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1384 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1386 #ifdef MD_STARTFILE_PREFIX
1387 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1389 #ifdef MD_STARTFILE_PREFIX_1
1390 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1392 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1393 static char *standard_startfile_prefix_1 = "/lib/";
1394 static char *standard_startfile_prefix_2 = "/usr/lib/";
1396 #ifndef TOOLDIR_BASE_PREFIX
1397 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1399 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1400 static char *tooldir_prefix;
1402 /* Subdirectory to use for locating libraries. Set by
1403 set_multilib_dir based on the compilation options. */
1405 static char *multilib_dir;
1407 /* Clear out the vector of arguments (after a command is executed). */
1415 /* Add one argument to the vector at the end.
1416 This is done when a space is seen or at the end of the line.
1417 If DELETE_ALWAYS is nonzero, the arg is a filename
1418 and the file should be deleted eventually.
1419 If DELETE_FAILURE is nonzero, the arg is a filename
1420 and the file should be deleted if this compilation fails. */
1423 store_arg (arg, delete_always, delete_failure)
1425 int delete_always, delete_failure;
1427 if (argbuf_index + 1 == argbuf_length)
1429 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1432 argbuf[argbuf_index++] = arg;
1433 argbuf[argbuf_index] = 0;
1435 if (delete_always || delete_failure)
1436 record_temp_file (arg, delete_always, delete_failure);
1439 /* Record the names of temporary files we tell compilers to write,
1440 and delete them at the end of the run. */
1442 /* This is the common prefix we use to make temp file names.
1443 It is chosen once for each run of this program.
1444 It is substituted into a spec by %g.
1445 Thus, all temp file names contain this prefix.
1446 In practice, all temp file names start with this prefix.
1448 This prefix comes from the envvar TMPDIR if it is defined;
1449 otherwise, from the P_tmpdir macro if that is defined;
1450 otherwise, in /usr/tmp or /tmp. */
1452 static char *temp_filename;
1454 /* Length of the prefix. */
1456 static int temp_filename_length;
1458 /* Define the list of temporary files to delete. */
1463 struct temp_file *next;
1466 /* Queue of files to delete on success or failure of compilation. */
1467 static struct temp_file *always_delete_queue;
1468 /* Queue of files to delete on failure of compilation. */
1469 static struct temp_file *failure_delete_queue;
1471 /* Record FILENAME as a file to be deleted automatically.
1472 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1473 otherwise delete it in any case.
1474 FAIL_DELETE nonzero means delete it if a compilation step fails;
1475 otherwise delete it in any case. */
1478 record_temp_file (filename, always_delete, fail_delete)
1483 register char *name;
1484 name = xmalloc (strlen (filename) + 1);
1485 strcpy (name, filename);
1489 register struct temp_file *temp;
1490 for (temp = always_delete_queue; temp; temp = temp->next)
1491 if (! strcmp (name, temp->name))
1493 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1494 temp->next = always_delete_queue;
1496 always_delete_queue = temp;
1502 register struct temp_file *temp;
1503 for (temp = failure_delete_queue; temp; temp = temp->next)
1504 if (! strcmp (name, temp->name))
1506 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1507 temp->next = failure_delete_queue;
1509 failure_delete_queue = temp;
1514 /* Delete all the temporary files whose names we previously recorded. */
1517 delete_if_ordinary (name)
1524 printf ("Delete %s? (y or n) ", name);
1528 while ((c = getchar ()) != '\n' && c != EOF) ;
1529 if (i == 'y' || i == 'Y')
1531 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1532 if (unlink (name) < 0)
1534 perror_with_name (name);
1538 delete_temp_files ()
1540 register struct temp_file *temp;
1542 for (temp = always_delete_queue; temp; temp = temp->next)
1543 delete_if_ordinary (temp->name);
1544 always_delete_queue = 0;
1547 /* Delete all the files to be deleted on error. */
1550 delete_failure_queue ()
1552 register struct temp_file *temp;
1554 for (temp = failure_delete_queue; temp; temp = temp->next)
1555 delete_if_ordinary (temp->name);
1559 clear_failure_queue ()
1561 failure_delete_queue = 0;
1564 /* Compute a string to use as the base of all temporary file names.
1565 It is substituted for %g. */
1568 choose_temp_base_try (try, base)
1575 else if (try == (char *)0)
1577 else if (access (try, R_OK | W_OK) != 0)
1590 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1591 base = choose_temp_base_try (getenv ("TMP"), base);
1592 base = choose_temp_base_try (getenv ("TEMP"), base);
1595 base = choose_temp_base_try (P_tmpdir, base);
1598 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1599 dir_separator_str, "tmp"),
1601 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1603 /* If all else fails, use the current directory! */
1604 if (base == (char *)0) base = concat(".", dir_separator_str);
1606 len = strlen (base);
1607 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1609 strcpy (temp_filename, base);
1610 if (len > 0 && temp_filename[len-1] != '/'
1611 && temp_filename[len-1] != DIR_SEPARATOR)
1612 temp_filename[len++] = DIR_SEPARATOR;
1613 strcpy (temp_filename + len, "ccXXXXXX");
1615 mktemp (temp_filename);
1616 temp_filename_length = strlen (temp_filename);
1617 if (temp_filename_length == 0)
1622 /* Routine to add variables to the environment. We do this to pass
1623 the pathname of the gcc driver, and the directories search to the
1624 collect2 program, which is being run as ld. This way, we can be
1625 sure of executing the right compiler when collect2 wants to build
1626 constructors and destructors. Since the environment variables we
1627 use come from an obstack, we don't have to worry about allocating
1636 #ifndef VMS /* nor about VMS */
1638 extern char **environ;
1639 char **old_environ = environ;
1643 int str_len = strlen (str);
1647 while ((ch = *p++) != '\0' && ch != '=')
1653 /* Search for replacing an existing environment variable, and
1654 count the number of total environment variables. */
1655 for (envp = old_environ; *envp; envp++)
1658 if (!strncmp (str, *envp, name_len))
1665 /* Add a new environment variable */
1666 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1668 bcopy ((char *) old_environ, (char *) (environ + 1),
1669 sizeof (char *) * (num_envs+1));
1674 #endif /* HAVE_PUTENV */
1677 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1680 putenv_from_prefixes (paths, env_var)
1681 struct path_prefix *paths;
1684 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1686 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1687 int first_time = TRUE;
1688 struct prefix_list *pprefix;
1690 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1692 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1694 int len = strlen (pprefix->prefix);
1697 && is_directory (pprefix->prefix, machine_suffix, 0))
1700 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1703 obstack_grow (&collect_obstack, pprefix->prefix, len);
1704 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1707 if (just_machine_suffix
1708 && pprefix->require_machine_suffix == 2
1709 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1712 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1715 obstack_grow (&collect_obstack, pprefix->prefix, len);
1716 obstack_grow (&collect_obstack, just_machine_suffix,
1720 if (!pprefix->require_machine_suffix)
1723 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1726 obstack_grow (&collect_obstack, pprefix->prefix, len);
1729 obstack_1grow (&collect_obstack, '\0');
1730 putenv (obstack_finish (&collect_obstack));
1734 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1735 access to check permissions.
1736 Return 0 if not found, otherwise return its name, allocated with malloc. */
1739 find_a_file (pprefix, name, mode)
1740 struct path_prefix *pprefix;
1745 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1746 struct prefix_list *pl;
1747 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1750 len += strlen (machine_suffix);
1752 temp = xmalloc (len);
1754 /* Determine the filename to execute (special case for absolute paths). */
1756 if (*name == '/' || *name == DIR_SEPARATOR)
1758 if (access (name, mode))
1760 strcpy (temp, name);
1765 for (pl = pprefix->plist; pl; pl = pl->next)
1769 /* Some systems have a suffix for executable files.
1770 So try appending that first. */
1771 if (file_suffix[0] != 0)
1773 strcpy (temp, pl->prefix);
1774 strcat (temp, machine_suffix);
1775 strcat (temp, name);
1776 strcat (temp, file_suffix);
1777 if (access (temp, mode) == 0)
1779 if (pl->used_flag_ptr != 0)
1780 *pl->used_flag_ptr = 1;
1785 /* Now try just the name. */
1786 strcpy (temp, pl->prefix);
1787 strcat (temp, 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 are tried with just the machine type,
1798 not the version. This is used for finding as, ld, etc. */
1799 if (just_machine_suffix && pl->require_machine_suffix == 2)
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, just_machine_suffix);
1807 strcat (temp, name);
1808 strcat (temp, file_suffix);
1809 if (access (temp, mode) == 0)
1811 if (pl->used_flag_ptr != 0)
1812 *pl->used_flag_ptr = 1;
1817 strcpy (temp, pl->prefix);
1818 strcat (temp, just_machine_suffix);
1819 strcat (temp, name);
1820 if (access (temp, mode) == 0)
1822 if (pl->used_flag_ptr != 0)
1823 *pl->used_flag_ptr = 1;
1828 /* Certain prefixes can't be used without the machine suffix
1829 when the machine or version is explicitly specified. */
1830 if (!pl->require_machine_suffix)
1832 /* Some systems have a suffix for executable files.
1833 So try appending that first. */
1834 if (file_suffix[0] != 0)
1836 strcpy (temp, pl->prefix);
1837 strcat (temp, name);
1838 strcat (temp, file_suffix);
1839 if (access (temp, mode) == 0)
1841 if (pl->used_flag_ptr != 0)
1842 *pl->used_flag_ptr = 1;
1847 strcpy (temp, pl->prefix);
1848 strcat (temp, name);
1849 if (access (temp, mode) == 0)
1851 if (pl->used_flag_ptr != 0)
1852 *pl->used_flag_ptr = 1;
1862 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1863 at the start of the list, otherwise it goes at the end.
1865 If WARN is nonzero, we will warn if no file is found
1866 through this prefix. WARN should point to an int
1867 which will be set to 1 if this entry is used.
1869 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1870 the complete value of machine_suffix.
1871 2 means try both machine_suffix and just_machine_suffix. */
1874 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1875 struct path_prefix *pprefix;
1878 int require_machine_suffix;
1881 struct prefix_list *pl, **prev;
1884 if (!first && pprefix->plist)
1886 for (pl = pprefix->plist; pl->next; pl = pl->next)
1891 prev = &pprefix->plist;
1893 /* Keep track of the longest prefix */
1895 len = strlen (prefix);
1896 if (len > pprefix->max_len)
1897 pprefix->max_len = len;
1899 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1900 pl->prefix = save_string (prefix, len);
1901 pl->require_machine_suffix = require_machine_suffix;
1902 pl->used_flag_ptr = warn;
1909 pl->next = (struct prefix_list *) 0;
1913 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1916 unused_prefix_warnings (pprefix)
1917 struct path_prefix *pprefix;
1919 struct prefix_list *pl = pprefix->plist;
1923 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1925 error ("file path prefix `%s' never used",
1927 /* Prevent duplicate warnings. */
1928 *pl->used_flag_ptr = 1;
1934 /* Get rid of all prefixes built up so far in *PLISTP. */
1937 free_path_prefix (pprefix)
1938 struct path_prefix *pprefix;
1940 struct prefix_list *pl = pprefix->plist;
1941 struct prefix_list *temp;
1947 free (temp->prefix);
1948 free ((char *) temp);
1950 pprefix->plist = (struct prefix_list *) 0;
1953 /* stdin file number. */
1954 #define STDIN_FILE_NO 0
1956 /* stdout file number. */
1957 #define STDOUT_FILE_NO 1
1959 /* value of `pipe': port index for reading. */
1962 /* value of `pipe': port index for writing. */
1963 #define WRITE_PORT 1
1965 /* Pipe waiting from last process, to be used as input for the next one.
1966 Value is STDIN_FILE_NO if no pipe is waiting
1967 (i.e. the next command is the first of a group). */
1969 static int last_pipe_input;
1971 /* Fork one piped subcommand. FUNC is the system call to use
1972 (either execv or execvp). ARGV is the arg vector to use.
1973 NOT_LAST is nonzero if this is not the last subcommand
1974 (i.e. its output should be piped to the next one.) */
1978 #include <process.h>
1980 pexecute (search_flag, program, argv, not_last)
1987 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1991 int i, el = search_flag ? 0 : 4;
1993 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1994 rf = scmd + strlen(program) + 2 + el;
1995 sprintf (scmd, "%s%s @%s.gp", program,
1996 (search_flag ? "" : ".exe"), temp_filename);
1997 argfile = fopen (rf, "w");
1999 pfatal_with_name (rf);
2001 for (i=1; argv[i]; i++)
2004 for (cp = argv[i]; *cp; cp++)
2006 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2007 fputc ('\\', argfile);
2008 fputc (*cp, argfile);
2010 fputc ('\n', argfile);
2021 perror_exec (program);
2022 return MIN_FATAL_STATUS << 8;
2029 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2032 pexecute (search_flag, program, argv, not_last)
2038 int (*func)() = (search_flag ? execv : execvp);
2041 int input_desc = last_pipe_input;
2042 int output_desc = STDOUT_FILE_NO;
2043 int retries, sleep_interval;
2045 /* If this isn't the last process, make a pipe for its output,
2046 and record it as waiting to be the input to the next process. */
2050 if (pipe (pdes) < 0)
2051 pfatal_with_name ("pipe");
2052 output_desc = pdes[WRITE_PORT];
2053 last_pipe_input = pdes[READ_PORT];
2056 last_pipe_input = STDIN_FILE_NO;
2058 /* Fork a subprocess; wait and retry if it fails. */
2060 for (retries = 0; retries < 4; retries++)
2065 sleep (sleep_interval);
2066 sleep_interval *= 2;
2073 pfatal_with_name ("fork");
2075 pfatal_with_name ("vfork");
2081 /* Move the input and output pipes into place, if nec. */
2082 if (input_desc != STDIN_FILE_NO)
2084 close (STDIN_FILE_NO);
2088 if (output_desc != STDOUT_FILE_NO)
2090 close (STDOUT_FILE_NO);
2092 close (output_desc);
2095 /* Close the parent's descs that aren't wanted here. */
2096 if (last_pipe_input != STDIN_FILE_NO)
2097 close (last_pipe_input);
2099 /* Exec the program. */
2100 (*func) (program, argv);
2101 perror_exec (program);
2107 /* In the parent, after forking.
2108 Close the descriptors that we made for this child. */
2109 if (input_desc != STDIN_FILE_NO)
2111 if (output_desc != STDOUT_FILE_NO)
2112 close (output_desc);
2114 /* Return child's process number. */
2119 #endif /* not __MSDOS__ and not OS2 */
2121 #if defined(OS2) || defined(WINNT)
2131 for (i = 1; argvec[i] != 0; i++)
2134 char *temp, *newtemp;
2137 len = strlen (temp);
2138 for (j = 0; j < len; j++)
2142 newtemp = xmalloc (len + 2);
2143 strncpy (newtemp, temp, j);
2145 strncpy (&newtemp [j+1], &temp [j], len-j);
2146 newtemp [len+1] = 0;
2160 #define FIX_ARGV(a) fix_argv(a)
2164 #define FIX_ARGV(a) a
2166 #endif /* OS2 or WINNT */
2169 pexecute (search_flag, program, argv, not_last)
2175 return (search_flag ? spawnv : spawnvp) (1, program, FIX_ARGV (argv));
2177 #endif /* OS2 or WINNT */
2180 /* Execute the command specified by the arguments on the current line of spec.
2181 When using pipes, this includes several piped-together commands
2182 with `|' between them.
2184 Return 0 if successful, -1 if failed. */
2190 int n_commands; /* # of command. */
2194 char *prog; /* program name. */
2195 char **argv; /* vector of args. */
2196 int pid; /* pid of process for this command. */
2199 struct command *commands; /* each command buffer with above info. */
2201 /* Count # of piped commands. */
2202 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2203 if (strcmp (argbuf[i], "|") == 0)
2206 /* Get storage for each command. */
2208 = (struct command *) alloca (n_commands * sizeof (struct command));
2210 /* Split argbuf into its separate piped processes,
2211 and record info about each one.
2212 Also search for the programs that are to be run. */
2214 commands[0].prog = argbuf[0]; /* first command. */
2215 commands[0].argv = &argbuf[0];
2216 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2218 commands[0].argv[0] = string;
2220 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2221 if (strcmp (argbuf[i], "|") == 0)
2222 { /* each command. */
2224 fatal ("-pipe not supported under MS-DOS");
2226 argbuf[i] = 0; /* termination of command args. */
2227 commands[n_commands].prog = argbuf[i + 1];
2228 commands[n_commands].argv = &argbuf[i + 1];
2229 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2231 commands[n_commands].argv[0] = string;
2235 argbuf[argbuf_index] = 0;
2237 /* If -v, print what we are about to do, and maybe query. */
2241 /* Print each piped command as a separate line. */
2242 for (i = 0; i < n_commands ; i++)
2246 for (j = commands[i].argv; *j; j++)
2247 fprintf (stderr, " %s", *j);
2249 /* Print a pipe symbol after all but the last command. */
2250 if (i + 1 != n_commands)
2251 fprintf (stderr, " |");
2252 fprintf (stderr, "\n");
2256 fprintf (stderr, "\nGo ahead? (y or n) ");
2260 while (getchar () != '\n') ;
2261 if (i != 'y' && i != 'Y')
2266 /* Run each piped subprocess. */
2268 last_pipe_input = STDIN_FILE_NO;
2269 for (i = 0; i < n_commands; i++)
2271 char *string = commands[i].argv[0];
2273 commands[i].pid = pexecute (string != commands[i].prog,
2274 string, commands[i].argv,
2275 i + 1 < n_commands);
2277 if (string != commands[i].prog)
2283 /* Wait for all the subprocesses to finish.
2284 We don't care what order they finish in;
2285 we know that N_COMMANDS waits will get them all.
2286 Ignore subprocesses that we don't know about,
2287 since they can be spawned by the process that exec'ed us. */
2292 for (i = 0; i < n_commands; )
2299 status = pid = commands[i].pid;
2302 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2304 pid = wait (&status);
2310 for (j = 0; j < n_commands; j++)
2311 if (commands[j].pid == pid)
2316 if (WIFSIGNALED (status))
2318 fatal ("Internal compiler error: program %s got fatal signal %d",
2319 commands[j].prog, WTERMSIG (status));
2323 else if (WIFEXITED (status)
2324 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2334 /* Find all the switches given to us
2335 and make a vector describing them.
2336 The elements of the vector are strings, one per switch given.
2337 If a switch uses following arguments, then the `part1' field
2338 is the switch itself and the `args' field
2339 is a null-terminated vector containing the following arguments.
2340 The `live_cond' field is 1 if the switch is true in a conditional spec,
2341 -1 if false (overridden by a later switch), and is initialized to zero.
2342 The `valid' field is nonzero if any spec has looked at this switch;
2343 if it remains zero at the end of the run, it must be meaningless. */
2353 static struct switchstr *switches;
2355 static int n_switches;
2363 /* Also a vector of input files specified. */
2365 static struct infile *infiles;
2367 static int n_infiles;
2369 /* And a vector of corresponding output files is made up later. */
2371 static char **outfiles;
2373 /* Create the vector `switches' and its contents.
2374 Store its length in `n_switches'. */
2377 process_command (argc, argv)
2383 char *spec_lang = 0;
2384 int last_language_n_infiles;
2386 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2391 /* Figure compiler version from version string. */
2393 compiler_version = save_string (version_string, strlen (version_string));
2394 for (temp = compiler_version; *temp; ++temp)
2403 /* Set up the default search paths. */
2405 if (gcc_exec_prefix)
2407 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2408 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2411 /* COMPILER_PATH and LIBRARY_PATH have values
2412 that are lists of directory names with colons. */
2414 temp = getenv ("COMPILER_PATH");
2417 char *startp, *endp;
2418 char *nstore = (char *) alloca (strlen (temp) + 3);
2420 startp = endp = temp;
2423 if (*endp == PATH_SEPARATOR || *endp == 0)
2425 strncpy (nstore, startp, endp-startp);
2427 strcpy (nstore, concat (".", dir_separator_str));
2428 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2430 nstore[endp-startp] = DIR_SEPARATOR;
2431 nstore[endp-startp+1] = 0;
2434 nstore[endp-startp] = 0;
2435 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2438 endp = startp = endp + 1;
2445 temp = getenv ("LIBRARY_PATH");
2446 if (temp && ! cross_compile)
2448 char *startp, *endp;
2449 char *nstore = (char *) alloca (strlen (temp) + 3);
2451 startp = endp = temp;
2454 if (*endp == PATH_SEPARATOR || *endp == 0)
2456 strncpy (nstore, startp, endp-startp);
2458 strcpy (nstore, concat (".", dir_separator_str));
2459 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2461 nstore[endp-startp] = DIR_SEPARATOR;
2462 nstore[endp-startp+1] = 0;
2465 nstore[endp-startp] = 0;
2466 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2469 endp = startp = endp + 1;
2476 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2477 temp = getenv ("LPATH");
2478 if (temp && ! cross_compile)
2480 char *startp, *endp;
2481 char *nstore = (char *) alloca (strlen (temp) + 3);
2483 startp = endp = temp;
2486 if (*endp == PATH_SEPARATOR || *endp == 0)
2488 strncpy (nstore, startp, endp-startp);
2490 strcpy (nstore, concat (".", dir_separator_str));
2491 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2493 nstore[endp-startp] = DIR_SEPARATOR;
2494 nstore[endp-startp+1] = 0;
2497 nstore[endp-startp] = 0;
2498 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2501 endp = startp = endp + 1;
2508 /* Convert new-style -- options to old-style. */
2509 translate_options (&argc, &argv);
2511 /* Scan argv twice. Here, the first time, just count how many switches
2512 there will be in their vector, and how many input files in theirs.
2513 Here we also parse the switches that cc itself uses (e.g. -v). */
2515 for (i = 1; i < argc; i++)
2517 if (! strcmp (argv[i], "-dumpspecs"))
2519 printf ("*asm:\n%s\n\n", asm_spec);
2520 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2521 printf ("*cpp:\n%s\n\n", cpp_spec);
2522 printf ("*cc1:\n%s\n\n", cc1_spec);
2523 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2524 printf ("*endfile:\n%s\n\n", endfile_spec);
2525 printf ("*link:\n%s\n\n", link_spec);
2526 printf ("*lib:\n%s\n\n", lib_spec);
2527 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2528 printf ("*startfile:\n%s\n\n", startfile_spec);
2529 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2530 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2531 printf ("*predefines:\n%s\n\n", cpp_predefines);
2532 printf ("*cross_compile:\n%d\n\n", cross_compile);
2533 printf ("*multilib:\n%s\n\n", multilib_select);
2537 else if (! strcmp (argv[i], "-dumpversion"))
2539 printf ("%s\n", version_string);
2542 else if (! strcmp (argv[i], "-dumpmachine"))
2544 printf ("%s\n", spec_machine);
2547 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2548 print_file_name = "libgcc.a";
2549 else if (! strncmp (argv[i], "-print-file-name=", 17))
2550 print_file_name = argv[i] + 17;
2551 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2552 print_prog_name = argv[i] + 17;
2553 else if (! strcmp (argv[i], "-print-multi-lib"))
2554 print_multi_lib = 1;
2555 else if (! strcmp (argv[i], "-print-multi-directory"))
2556 print_multi_directory = 1;
2557 else if (! strncmp (argv[i], "-Wa,", 4))
2560 /* Pass the rest of this option to the assembler. */
2562 n_assembler_options++;
2563 if (!assembler_options)
2565 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2568 = (char **) xrealloc (assembler_options,
2569 n_assembler_options * sizeof (char **));
2571 /* Split the argument at commas. */
2573 for (j = 4; argv[i][j]; j++)
2574 if (argv[i][j] == ',')
2576 assembler_options[n_assembler_options - 1]
2577 = save_string (argv[i] + prev, j - prev);
2578 n_assembler_options++;
2580 = (char **) xrealloc (assembler_options,
2581 n_assembler_options * sizeof (char **));
2584 /* Record the part after the last comma. */
2585 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2587 else if (! strncmp (argv[i], "-Wp,", 4))
2590 /* Pass the rest of this option to the preprocessor. */
2592 n_preprocessor_options++;
2593 if (!preprocessor_options)
2594 preprocessor_options
2595 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2597 preprocessor_options
2598 = (char **) xrealloc (preprocessor_options,
2599 n_preprocessor_options * sizeof (char **));
2601 /* Split the argument at commas. */
2603 for (j = 4; argv[i][j]; j++)
2604 if (argv[i][j] == ',')
2606 preprocessor_options[n_preprocessor_options - 1]
2607 = save_string (argv[i] + prev, j - prev);
2608 n_preprocessor_options++;
2609 preprocessor_options
2610 = (char **) xrealloc (preprocessor_options,
2611 n_preprocessor_options * sizeof (char **));
2614 /* Record the part after the last comma. */
2615 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2617 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2618 /* The +e options to the C++ front-end. */
2620 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2623 /* Split the argument at commas. */
2624 for (j = 3; argv[i][j]; j++)
2625 n_infiles += (argv[i][j] == ',');
2627 else if (strcmp (argv[i], "-Xlinker") == 0)
2630 fatal ("argument to `-Xlinker' is missing");
2635 else if (strncmp (argv[i], "-l", 2) == 0)
2637 else if (argv[i][0] == '-' && argv[i][1] != 0)
2639 register char *p = &argv[i][1];
2640 register int c = *p;
2645 if (p[1] == 0 && i + 1 == argc)
2646 fatal ("argument to `-b' is missing");
2648 spec_machine = argv[++i];
2650 spec_machine = p + 1;
2655 int *temp = (int *) xmalloc (sizeof (int));
2657 if (p[1] == 0 && i + 1 == argc)
2658 fatal ("argument to `-B' is missing");
2663 add_prefix (&exec_prefixes, value, 1, 0, temp);
2664 add_prefix (&startfile_prefixes, value, 1, 0, temp);
2665 add_prefix (&include_prefixes, concat (value, "include"),
2668 /* As a kludge, if the arg is "[foo/]stageN/", just add
2669 "[foo/]include" to the include prefix. */
2671 int len = strlen (value);
2674 && (value[len - 8] == '/'
2675 || value[len - 8] == DIR_SEPARATOR)))
2676 && strncmp (value + len - 7, "stage", 5) == 0
2677 && isdigit (value[len - 2])
2678 && (value[len - 1] == '/'
2679 || value[len - 1] == DIR_SEPARATOR))
2682 add_prefix (&include_prefixes, "include", 1, 0, 0);
2685 char *string = xmalloc (len + 1);
2686 strncpy (string, value, len-7);
2687 strcat (string, "include");
2688 add_prefix (&include_prefixes, string, 1, 0, 0);
2695 case 'v': /* Print our subcommands and print versions. */
2697 /* If they do anything other than exactly `-v', don't set
2698 verbose_flag; rather, continue on to give the error. */
2705 if (p[1] == 0 && i + 1 == argc)
2706 fatal ("argument to `-V' is missing");
2708 spec_version = argv[++i];
2710 spec_version = p + 1;
2711 compiler_version = spec_version;
2715 if (!strcmp (p, "save-temps"))
2717 save_temps_flag = 1;
2724 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2725 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2726 else if (WORD_SWITCH_TAKES_ARG (p))
2727 i += WORD_SWITCH_TAKES_ARG (p);
2734 /* Set up the search paths before we go looking for config files. */
2736 /* These come before the md prefixes so that we will find gcc's subcommands
2737 (such as cpp) rather than those of the host system. */
2738 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2739 as well as trying the machine and the version. */
2741 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, NULL_PTR);
2742 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, NULL_PTR);
2745 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, NULL_PTR);
2746 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, NULL_PTR);
2748 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2751 /* If tooldir is relative, base it on exec_prefixes. A relative
2752 tooldir lets us move the installed tree as a unit.
2754 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2755 directories, so that we can search both the user specified directory
2756 and the standard place. */
2758 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2760 if (gcc_exec_prefix)
2762 char *gcc_exec_tooldir_prefix
2763 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2764 spec_version, dir_separator_str, tooldir_prefix);
2766 add_prefix (&exec_prefixes,
2767 concat3 (gcc_exec_tooldir_prefix, "bin",
2770 add_prefix (&startfile_prefixes,
2771 concat3 (gcc_exec_tooldir_prefix, "lib",
2776 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2777 dir_separator_str, spec_version,
2778 dir_separator_str, tooldir_prefix);
2781 add_prefix (&exec_prefixes,
2782 concat3 (tooldir_prefix, "bin", dir_separator_str),
2784 add_prefix (&startfile_prefixes,
2785 concat3 (tooldir_prefix, "lib", dir_separator_str),
2788 /* More prefixes are enabled in main, after we read the specs file
2789 and determine whether this is cross-compilation or not. */
2792 /* Then create the space for the vectors and scan again. */
2794 switches = ((struct switchstr *)
2795 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2796 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2799 last_language_n_infiles = -1;
2801 /* This, time, copy the text of each switch and store a pointer
2802 to the copy in the vector of switches.
2803 Store all the infiles in their vector. */
2805 for (i = 1; i < argc; i++)
2807 /* Just skip the switches that were handled by the preceding loop. */
2808 if (! strncmp (argv[i], "-Wa,", 4))
2810 else if (! strncmp (argv[i], "-Wp,", 4))
2812 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2814 else if (! strncmp (argv[i], "-print-file-name=", 17))
2816 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2818 else if (! strcmp (argv[i], "-print-multi-lib"))
2820 else if (! strcmp (argv[i], "-print-multi-directory"))
2822 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2824 /* Compensate for the +e options to the C++ front-end;
2825 they're there simply for cfront call-compatibility. We do
2826 some magic in default_compilers to pass them down properly.
2827 Note we deliberately start at the `+' here, to avoid passing
2828 -e0 or -e1 down into the linker. */
2829 switches[n_switches].part1 = &argv[i][0];
2830 switches[n_switches].args = 0;
2831 switches[n_switches].live_cond = 0;
2832 switches[n_switches].valid = 0;
2835 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2838 /* Split the argument at commas. */
2840 for (j = 4; argv[i][j]; j++)
2841 if (argv[i][j] == ',')
2843 infiles[n_infiles].language = spec_lang;
2844 infiles[n_infiles++].name
2845 = save_string (argv[i] + prev, j - prev);
2848 /* Record the part after the last comma. */
2849 infiles[n_infiles].language = spec_lang;
2850 infiles[n_infiles++].name = argv[i] + prev;
2852 else if (strcmp (argv[i], "-Xlinker") == 0)
2854 infiles[n_infiles].language = spec_lang;
2855 infiles[n_infiles++].name = argv[++i];
2857 else if (strncmp (argv[i], "-l", 2) == 0)
2859 infiles[n_infiles].language = spec_lang;
2860 infiles[n_infiles++].name = argv[i];
2862 else if (argv[i][0] == '-' && argv[i][1] != 0)
2864 register char *p = &argv[i][1];
2865 register int c = *p;
2867 if (c == 'B' || c == 'b' || c == 'V')
2869 /* Skip a separate arg, if any. */
2876 if (p[1] == 0 && i + 1 == argc)
2877 fatal ("argument to `-x' is missing");
2879 spec_lang = argv[++i];
2882 if (! strcmp (spec_lang, "none"))
2883 /* Suppress the warning if -xnone comes after the last input file,
2884 because alternate command interfaces like g++ might find it
2885 useful to place -xnone after each input file. */
2888 last_language_n_infiles = n_infiles;
2891 switches[n_switches].part1 = p;
2892 /* Deal with option arguments in separate argv elements. */
2893 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2894 || WORD_SWITCH_TAKES_ARG (p))
2897 int n_args = WORD_SWITCH_TAKES_ARG (p);
2901 /* Count only the option arguments in separate argv elements. */
2902 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2904 if (i + n_args >= argc)
2905 fatal ("argument to `-%s' is missing", p);
2906 switches[n_switches].args
2907 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2909 switches[n_switches].args[j++] = argv[++i];
2910 /* Null-terminate the vector. */
2911 switches[n_switches].args[j] = 0;
2913 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2915 /* On some systems, ld cannot handle -o or -L without space.
2916 So split the -o or -L from its argument. */
2917 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2918 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2919 switches[n_switches].args[0] = xmalloc (strlen (p));
2920 strcpy (switches[n_switches].args[0], &p[1]);
2921 switches[n_switches].args[1] = 0;
2924 switches[n_switches].args = 0;
2926 switches[n_switches].live_cond = 0;
2927 switches[n_switches].valid = 0;
2928 /* This is always valid, since gcc.c itself understands it. */
2929 if (!strcmp (p, "save-temps"))
2930 switches[n_switches].valid = 1;
2935 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2937 perror_with_name (argv[i]);
2942 infiles[n_infiles].language = spec_lang;
2943 infiles[n_infiles++].name = argv[i];
2948 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2949 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2951 switches[n_switches].part1 = 0;
2952 infiles[n_infiles].name = 0;
2954 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2955 if (gcc_exec_prefix)
2957 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2958 + strlen (spec_machine) + 3);
2959 strcpy (temp, gcc_exec_prefix);
2960 strcat (temp, spec_machine);
2961 strcat (temp, dir_separator_str);
2962 strcat (temp, spec_version);
2963 strcat (temp, dir_separator_str);
2964 gcc_exec_prefix = temp;
2968 /* Process a spec string, accumulating and running commands. */
2970 /* These variables describe the input file name.
2971 input_file_number is the index on outfiles of this file,
2972 so that the output file name can be stored for later use by %o.
2973 input_basename is the start of the part of the input file
2974 sans all directory names, and basename_length is the number
2975 of characters starting there excluding the suffix .c or whatever. */
2977 static char *input_filename;
2978 static int input_file_number;
2979 static int input_filename_length;
2980 static int basename_length;
2981 static char *input_basename;
2982 static char *input_suffix;
2984 /* These are variables used within do_spec and do_spec_1. */
2986 /* Nonzero if an arg has been started and not yet terminated
2987 (with space, tab or newline). */
2988 static int arg_going;
2990 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2991 is a temporary file name. */
2992 static int delete_this_arg;
2994 /* Nonzero means %w has been seen; the next arg to be terminated
2995 is the output file name of this compilation. */
2996 static int this_is_output_file;
2998 /* Nonzero means %s has been seen; the next arg to be terminated
2999 is the name of a library file and we should try the standard
3000 search dirs for it. */
3001 static int this_is_library_file;
3003 /* Nonzero means that the input of this command is coming from a pipe. */
3004 static int input_from_pipe;
3006 /* Process the spec SPEC and run the commands specified therein.
3007 Returns 0 if the spec is successfully processed; -1 if failed. */
3017 delete_this_arg = 0;
3018 this_is_output_file = 0;
3019 this_is_library_file = 0;
3020 input_from_pipe = 0;
3022 value = do_spec_1 (spec, 0, NULL_PTR);
3024 /* Force out any unfinished command.
3025 If -pipe, this forces out the last command if it ended in `|'. */
3028 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3031 if (argbuf_index > 0)
3038 /* Process the sub-spec SPEC as a portion of a larger spec.
3039 This is like processing a whole spec except that we do
3040 not initialize at the beginning and we do not supply a
3041 newline by default at the end.
3042 INSWITCH nonzero means don't process %-sequences in SPEC;
3043 in this case, % is treated as an ordinary character.
3044 This is used while substituting switches.
3045 INSWITCH nonzero also causes SPC not to terminate an argument.
3047 Value is zero unless a line was finished
3048 and the command on that line reported an error. */
3051 do_spec_1 (spec, inswitch, soft_matched_part)
3054 char *soft_matched_part;
3056 register char *p = spec;
3063 /* If substituting a switch, treat all chars like letters.
3064 Otherwise, NL, SPC, TAB and % are special. */
3065 switch (inswitch ? 'a' : c)
3068 /* End of line: finish any pending argument,
3069 then run the pending command if one has been started. */
3072 obstack_1grow (&obstack, 0);
3073 string = obstack_finish (&obstack);
3074 if (this_is_library_file)
3075 string = find_file (string);
3076 store_arg (string, delete_this_arg, this_is_output_file);
3077 if (this_is_output_file)
3078 outfiles[input_file_number] = string;
3082 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3085 for (i = 0; i < n_switches; i++)
3086 if (!strcmp (switches[i].part1, "pipe"))
3089 /* A `|' before the newline means use a pipe here,
3090 but only if -pipe was specified.
3091 Otherwise, execute now and don't pass the `|' as an arg. */
3094 input_from_pipe = 1;
3095 switches[i].valid = 1;
3102 if (argbuf_index > 0)
3108 /* Reinitialize for a new command, and for a new argument. */
3111 delete_this_arg = 0;
3112 this_is_output_file = 0;
3113 this_is_library_file = 0;
3114 input_from_pipe = 0;
3118 /* End any pending argument. */
3121 obstack_1grow (&obstack, 0);
3122 string = obstack_finish (&obstack);
3123 if (this_is_library_file)
3124 string = find_file (string);
3125 store_arg (string, delete_this_arg, this_is_output_file);
3126 if (this_is_output_file)
3127 outfiles[input_file_number] = string;
3131 obstack_1grow (&obstack, c);
3137 /* Space or tab ends an argument if one is pending. */
3140 obstack_1grow (&obstack, 0);
3141 string = obstack_finish (&obstack);
3142 if (this_is_library_file)
3143 string = find_file (string);
3144 store_arg (string, delete_this_arg, this_is_output_file);
3145 if (this_is_output_file)
3146 outfiles[input_file_number] = string;
3148 /* Reinitialize for a new argument. */
3150 delete_this_arg = 0;
3151 this_is_output_file = 0;
3152 this_is_library_file = 0;
3159 fatal ("Invalid specification! Bug in cc.");
3162 obstack_grow (&obstack, input_basename, basename_length);
3167 delete_this_arg = 2;
3170 /* Dump out the directories specified with LIBRARY_PATH,
3171 followed by the absolute directories
3172 that we search for startfiles. */
3175 struct prefix_list *pl = startfile_prefixes.plist;
3177 char *buffer = (char *) xmalloc (bufsize);
3180 for (; pl; pl = pl->next)
3182 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3183 /* Used on systems which record the specified -L dirs
3184 and use them to search for dynamic linking. */
3185 /* Relative directories always come from -B,
3186 and it is better not to use them for searching
3187 at run time. In particular, stage1 loses */
3188 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3191 /* Try subdirectory if there is one. */
3192 if (multilib_dir != NULL)
3196 if (strlen (pl->prefix) + strlen (machine_suffix)
3198 bufsize = (strlen (pl->prefix)
3199 + strlen (machine_suffix)) * 2 + 1;
3200 buffer = (char *) xrealloc (buffer, bufsize);
3201 strcpy (buffer, pl->prefix);
3202 strcat (buffer, machine_suffix);
3203 if (is_directory (buffer, multilib_dir, 1))
3205 do_spec_1 ("-L", 0, NULL_PTR);
3206 #ifdef SPACE_AFTER_L_OPTION
3207 do_spec_1 (" ", 0, NULL_PTR);
3209 do_spec_1 (buffer, 1, NULL_PTR);
3210 do_spec_1 (multilib_dir, 1, NULL_PTR);
3211 /* Make this a separate argument. */
3212 do_spec_1 (" ", 0, NULL_PTR);
3215 if (!pl->require_machine_suffix)
3217 if (is_directory (pl->prefix, multilib_dir, 1))
3219 do_spec_1 ("-L", 0, NULL_PTR);
3220 #ifdef SPACE_AFTER_L_OPTION
3221 do_spec_1 (" ", 0, NULL_PTR);
3223 do_spec_1 (pl->prefix, 1, NULL_PTR);
3224 do_spec_1 (multilib_dir, 1, NULL_PTR);
3225 /* Make this a separate argument. */
3226 do_spec_1 (" ", 0, NULL_PTR);
3232 if (is_directory (pl->prefix, machine_suffix, 1))
3234 do_spec_1 ("-L", 0, NULL_PTR);
3235 #ifdef SPACE_AFTER_L_OPTION
3236 do_spec_1 (" ", 0, NULL_PTR);
3238 do_spec_1 (pl->prefix, 1, NULL_PTR);
3239 /* Remove slash from machine_suffix. */
3240 if (strlen (machine_suffix) >= bufsize)
3241 bufsize = strlen (machine_suffix) * 2 + 1;
3242 buffer = (char *) xrealloc (buffer, bufsize);
3243 strcpy (buffer, machine_suffix);
3244 idx = strlen (buffer);
3245 if (buffer[idx - 1] == '/'
3246 || buffer[idx - 1] == DIR_SEPARATOR)
3247 buffer[idx - 1] = 0;
3248 do_spec_1 (buffer, 1, NULL_PTR);
3249 /* Make this a separate argument. */
3250 do_spec_1 (" ", 0, NULL_PTR);
3253 if (!pl->require_machine_suffix)
3255 if (is_directory (pl->prefix, "", 1))
3257 do_spec_1 ("-L", 0, NULL_PTR);
3258 #ifdef SPACE_AFTER_L_OPTION
3259 do_spec_1 (" ", 0, NULL_PTR);
3261 /* Remove slash from pl->prefix. */
3262 if (strlen (pl->prefix) >= bufsize)
3263 bufsize = strlen (pl->prefix) * 2 + 1;
3264 buffer = (char *) xrealloc (buffer, bufsize);
3265 strcpy (buffer, pl->prefix);
3266 idx = strlen (buffer);
3267 if (buffer[idx - 1] == '/'
3268 || buffer[idx - 1] == DIR_SEPARATOR)
3269 buffer[idx - 1] = 0;
3270 do_spec_1 (buffer, 1, NULL_PTR);
3271 /* Make this a separate argument. */
3272 do_spec_1 (" ", 0, NULL_PTR);
3281 /* {...:%efoo} means report an error with `foo' as error message
3282 and don't execute any more commands for this file. */
3286 while (*p != 0 && *p != '\n') p++;
3287 buf = (char *) alloca (p - q + 1);
3288 strncpy (buf, q, p - q);
3298 if (save_temps_flag)
3300 obstack_grow (&obstack, input_basename, basename_length);
3301 delete_this_arg = 0;
3305 #ifdef MKTEMP_EACH_FILE
3306 /* ??? This has a problem: the total number of
3307 values mktemp can return is limited.
3308 That matters for the names of object files.
3309 In 2.4, do something about that. */
3310 struct temp_name *t;
3312 while (*p == '.' || isalpha (*p))
3315 /* See if we already have an association of %g/%u/%U and
3317 for (t = temp_names; t; t = t->next)
3318 if (t->length == p - suffix
3319 && strncmp (t->suffix, suffix, p - suffix) == 0
3320 && t->unique == (c != 'g'))
3323 /* Make a new association if needed. %u requires one. */
3324 if (t == 0 || c == 'u')
3328 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3329 t->next = temp_names;
3332 t->length = p - suffix;
3333 t->suffix = save_string (suffix, p - suffix);
3334 t->unique = (c != 'g');
3335 choose_temp_base ();
3336 t->filename = temp_filename;
3337 t->filename_length = temp_filename_length;
3340 obstack_grow (&obstack, t->filename, t->filename_length);
3341 delete_this_arg = 1;
3343 obstack_grow (&obstack, temp_filename, temp_filename_length);
3344 if (c == 'u' || c == 'U')
3350 sprintf (buff, "%d", unique);
3351 obstack_grow (&obstack, buff, strlen (buff));
3354 delete_this_arg = 1;
3360 obstack_grow (&obstack, input_filename, input_filename_length);
3366 struct prefix_list *pl = include_prefixes.plist;
3368 if (gcc_exec_prefix)
3370 do_spec_1 ("-iprefix", 1, NULL_PTR);
3371 /* Make this a separate argument. */
3372 do_spec_1 (" ", 0, NULL_PTR);
3373 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3374 do_spec_1 (" ", 0, NULL_PTR);
3377 for (; pl; pl = pl->next)
3379 do_spec_1 ("-isystem", 1, NULL_PTR);
3380 /* Make this a separate argument. */
3381 do_spec_1 (" ", 0, NULL_PTR);
3382 do_spec_1 (pl->prefix, 1, NULL_PTR);
3383 do_spec_1 (" ", 0, NULL_PTR);
3391 for (f = 0; f < n_infiles; f++)
3392 store_arg (outfiles[f], 0, 0);
3397 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3402 this_is_library_file = 1;
3406 this_is_output_file = 1;
3411 int index = argbuf_index;
3412 /* Handle the {...} following the %W. */
3415 p = handle_braces (p + 1);
3418 /* If any args were output, mark the last one for deletion
3420 if (argbuf_index != index)
3421 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3425 /* %x{OPTION} records OPTION for %X to output. */
3431 /* Skip past the option value and make a copy. */
3436 string = save_string (p1 + 1, p - p1 - 2);
3438 /* See if we already recorded this option. */
3439 for (i = 0; i < n_linker_options; i++)
3440 if (! strcmp (string, linker_options[i]))
3446 /* This option is new; add it. */
3448 if (!linker_options)
3450 = (char **) xmalloc (n_linker_options * sizeof (char **));
3453 = (char **) xrealloc (linker_options,
3454 n_linker_options * sizeof (char **));
3456 linker_options[n_linker_options - 1] = string;
3460 /* Dump out the options accumulated previously using %x. */
3462 for (i = 0; i < n_linker_options; i++)
3464 do_spec_1 (linker_options[i], 1, NULL_PTR);
3465 /* Make each accumulated option a separate argument. */
3466 do_spec_1 (" ", 0, NULL_PTR);
3470 /* Dump out the options accumulated previously using -Wa,. */
3472 for (i = 0; i < n_assembler_options; i++)
3474 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3475 /* Make each accumulated option a separate argument. */
3476 do_spec_1 (" ", 0, NULL_PTR);
3480 /* Dump out the options accumulated previously using -Wp,. */
3482 for (i = 0; i < n_preprocessor_options; i++)
3484 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3485 /* Make each accumulated option a separate argument. */
3486 do_spec_1 (" ", 0, NULL_PTR);
3490 /* Here are digits and numbers that just process
3491 a certain constant string as a spec. */
3494 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3500 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3506 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3512 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3518 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3524 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3530 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3536 value = do_spec_1 (link_spec, 0, NULL_PTR);
3542 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3548 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3555 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3559 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3563 if (! strncmp (y, "-D", 2))
3564 /* Copy the whole option. */
3565 while (*y && *y != ' ' && *y != '\t')
3567 else if (*y == ' ' || *y == '\t')
3568 /* Copy whitespace to the result. */
3570 /* Don't copy other options. */
3577 value = do_spec_1 (buf, 0, NULL_PTR);
3585 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3589 /* Copy all of CPP_PREDEFINES into BUF,
3590 but put __ after every -D and at the end of each arg. */
3594 if (! strncmp (y, "-D", 2))
3602 || (*(y+1) != '_' && ! isupper (*(y+1))))
3604 /* Stick __ at front of macro name. */
3607 /* Arrange to stick __ at the end as well. */
3611 /* Copy the macro name. */
3612 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3621 /* Copy the value given, if any. */
3622 while (*y && *y != ' ' && *y != '\t')
3625 else if (*y == ' ' || *y == '\t')
3626 /* Copy whitespace to the result. */
3628 /* Don't copy -A options */
3634 /* Copy all of CPP_PREDEFINES into BUF,
3635 but put __ after every -D. */
3639 if (! strncmp (y, "-D", 2))
3644 || (*(y+1) != '_' && ! isupper (*(y+1))))
3646 /* Stick -D__ at front of macro name. */
3652 /* Copy the macro name. */
3653 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3656 /* Copy the value given, if any. */
3657 while (*y && *y != ' ' && *y != '\t')
3662 /* Do not copy this macro - we have just done it before */
3663 while (*y && *y != ' ' && *y != '\t')
3667 else if (*y == ' ' || *y == '\t')
3668 /* Copy whitespace to the result. */
3670 /* Don't copy -A options */
3676 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3680 if (! strncmp (y, "-A", 2))
3681 /* Copy the whole option. */
3682 while (*y && *y != ' ' && *y != '\t')
3684 else if (*y == ' ' || *y == '\t')
3685 /* Copy whitespace to the result. */
3687 /* Don't copy other options. */
3694 value = do_spec_1 (buf, 0, NULL_PTR);
3701 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3706 /* Here we define characters other than letters and digits. */
3709 p = handle_braces (p);
3715 obstack_1grow (&obstack, '%');
3719 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3720 do_spec_1 (" ", 0, NULL_PTR);
3723 /* Process a string found as the value of a spec given by name.
3724 This feature allows individual machine descriptions
3725 to add and use their own specs.
3726 %[...] modifies -D options the way %P does;
3727 %(...) uses the spec unmodified. */
3732 struct spec_list *sl;
3735 /* The string after the S/P is the name of a spec that is to be
3737 while (*p && *p != ')' && *p != ']')
3740 /* See if it's in the list */
3741 for (len = p - name, sl = specs; sl; sl = sl->next)
3742 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3752 value = do_spec_1 (name, 0, NULL_PTR);
3758 char *x = (char *) alloca (strlen (name) * 2 + 1);
3762 /* Copy all of NAME into BUF, but put __ after
3763 every -D and at the end of each arg, */
3766 if (! strncmp (y, "-D", 2))
3774 else if (*y == ' ' || *y == 0)
3788 value = do_spec_1 (buf, 0, NULL_PTR);
3794 /* Discard the closing paren or bracket. */
3802 int c1 = *p++; /* Select first or second version number. */
3803 char *v = compiler_version;
3805 /* If desired, advance to second version number. */
3808 /* Set P after the first period. */
3809 while (*v != 0 && *v != ' ' && *v != '.')
3814 /* Set Q at the next period or at the end. */
3816 while (*q != 0 && *q != ' ' && *q != '.')
3818 /* Empty string means zero. */
3824 /* Put that part into the command. */
3825 obstack_grow (&obstack, v, q - v);
3831 if (input_from_pipe)
3832 do_spec_1 ("-", 0, NULL_PTR);
3841 /* Backslash: treat next character as ordinary. */
3846 /* Ordinary character: put it into the current argument. */
3847 obstack_1grow (&obstack, c);
3851 return 0; /* End of string */
3854 /* Return 0 if we call do_spec_1 and that returns -1. */
3867 /* A `|' after the open-brace means,
3868 if the test fails, output a single minus sign rather than nothing.
3869 This is used in %{|!pipe:...}. */
3873 /* A `!' after the open-brace negates the condition:
3874 succeed if the specified switch is not present. */
3878 /* A `.' after the open-brace means test against the current suffix. */
3888 while (*p != ':' && *p != '}') p++;
3891 register int count = 1;
3909 int found = (input_suffix != 0
3910 && strlen (input_suffix) == p - filter
3911 && strncmp (input_suffix, filter, p - filter) == 0);
3917 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3922 else if (p[-1] == '*' && p[0] == '}')
3924 /* Substitute all matching switches as separate args. */
3927 for (i = 0; i < n_switches; i++)
3928 if (!strncmp (switches[i].part1, filter, p - filter)
3929 && check_live_switch (i, p - filter))
3934 /* Test for presence of the specified switch. */
3938 /* If name specified ends in *, as in {x*:...},
3939 check for %* and handle that case. */
3940 if (p[-1] == '*' && !negate)
3945 /* First see whether we have %*. */
3949 if (*r == '%' && r[1] == '*')
3953 /* If we do, handle that case. */
3956 /* Substitute all matching switches as separate args.
3957 But do this by substituting for %*
3958 in the text that follows the colon. */
3960 unsigned hard_match_len = p - filter - 1;
3961 char *string = save_string (p + 1, q - p - 2);
3963 for (i = 0; i < n_switches; i++)
3964 if (!strncmp (switches[i].part1, filter, hard_match_len)
3965 && check_live_switch (i, -1))
3967 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3968 /* Pass any arguments this switch has. */
3976 /* If name specified ends in *, as in {x*:...},
3977 check for presence of any switch name starting with x. */
3980 for (i = 0; i < n_switches; i++)
3982 unsigned hard_match_len = p - filter - 1;
3984 if (!strncmp (switches[i].part1, filter, hard_match_len)
3985 && check_live_switch (i, hard_match_len))
3991 /* Otherwise, check for presence of exact name specified. */
3994 for (i = 0; i < n_switches; i++)
3996 if (!strncmp (switches[i].part1, filter, p - filter)
3997 && switches[i].part1[p - filter] == 0
3998 && check_live_switch (i, -1))
4006 /* If it is as desired (present for %{s...}, absent for %{-s...})
4007 then substitute either the switch or the specified
4008 conditional text. */
4009 if (present != negate)
4017 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4023 /* Here if a %{|...} conditional fails: output a minus sign,
4024 which means "standard output" or "standard input". */
4025 do_spec_1 ("-", 0, NULL_PTR);
4032 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4033 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4034 spec, or -1 if either exact match or %* is used.
4036 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4037 whose value does not begin with "no-" is obsoleted by the same value
4038 with the "no-", similarly for a switch with the "no-" prefix. */
4041 check_live_switch (switchnum, prefix_length)
4045 char *name = switches[switchnum].part1;
4048 /* In the common case of {<at-most-one-letter>*}, a negating
4049 switch would always match, so ignore that case. We will just
4050 send the conflicting switches to the compiler phase. */
4051 if (prefix_length >= 0 && prefix_length <= 1)
4054 /* If we already processed this switch and determined if it was
4055 live or not, return our past determination. */
4056 if (switches[switchnum].live_cond != 0)
4057 return switches[switchnum].live_cond > 0;
4059 /* Now search for duplicate in a manner that depends on the name. */
4063 for (i = switchnum + 1; i < n_switches; i++)
4064 if (switches[i].part1[0] == 'O')
4066 switches[switchnum].valid = 1;
4067 switches[switchnum].live_cond = -1;
4072 case 'W': case 'f': case 'm':
4073 if (! strncmp (name + 1, "no-", 3))
4075 /* We have Xno-YYY, search for XYYY. */
4076 for (i = switchnum + 1; i < n_switches; i++)
4077 if (switches[i].part1[0] == name[0]
4078 && ! strcmp (&switches[i].part1[1], &name[4]))
4080 switches[switchnum].valid = 1;
4081 switches[switchnum].live_cond = -1;
4087 /* We have XYYY, search for Xno-YYY. */
4088 for (i = switchnum + 1; i < n_switches; i++)
4089 if (switches[i].part1[0] == name[0]
4090 && switches[i].part1[1] == 'n'
4091 && switches[i].part1[2] == 'o'
4092 && switches[i].part1[3] == '-'
4093 && !strcmp (&switches[i].part1[4], &name[1]))
4095 switches[switchnum].valid = 1;
4096 switches[switchnum].live_cond = -1;
4103 /* Otherwise the switch is live. */
4104 switches[switchnum].live_cond = 1;
4108 /* Pass a switch to the current accumulating command
4109 in the same form that we received it.
4110 SWITCHNUM identifies the switch; it is an index into
4111 the vector of switches gcc received, which is `switches'.
4112 This cannot fail since it never finishes a command line.
4114 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4117 give_switch (switchnum, omit_first_word)
4119 int omit_first_word;
4121 if (!omit_first_word)
4123 do_spec_1 ("-", 0, NULL_PTR);
4124 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4126 do_spec_1 (" ", 0, NULL_PTR);
4127 if (switches[switchnum].args != 0)
4130 for (p = switches[switchnum].args; *p; p++)
4132 do_spec_1 (*p, 1, NULL_PTR);
4133 do_spec_1 (" ", 0, NULL_PTR);
4136 switches[switchnum].valid = 1;
4139 /* Search for a file named NAME trying various prefixes including the
4140 user's -B prefix and some standard ones.
4141 Return the absolute file name found. If nothing is found, return NAME. */
4149 /* Try multilib_dir if it is defined. */
4150 if (multilib_dir != NULL)
4154 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4155 strcpy (try, multilib_dir);
4156 strcat (try, dir_separator_str);
4159 newname = find_a_file (&startfile_prefixes, try, R_OK);
4161 /* If we don't find it in the multi library dir, then fall
4162 through and look for it in the normal places. */
4163 if (newname != NULL)
4167 newname = find_a_file (&startfile_prefixes, name, R_OK);
4168 return newname ? newname : name;
4171 /* Determine whether a directory exists. If LINKER, return 0 for
4172 certain fixed names not needed by the linker. If not LINKER, it is
4173 only important to return 0 if the host machine has a small ARG_MAX
4177 is_directory (path1, path2, linker)
4182 int len1 = strlen (path1);
4183 int len2 = strlen (path2);
4184 char *path = (char *) alloca (3 + len1 + len2);
4188 #ifndef SMALL_ARG_MAX
4193 /* Construct the path from the two parts. Ensure the string ends with "/.".
4194 The resulting path will be a directory even if the given path is a
4196 bcopy (path1, path, len1);
4197 bcopy (path2, path + len1, len2);
4198 cp = path + len1 + len2;
4199 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4200 *cp++ = DIR_SEPARATOR;
4204 /* Exclude directories that the linker is known to search. */
4207 && strcmp (path, concat4 (dir_separator_str, "lib",
4208 dir_separator_str, ".")) == 0)
4210 && strcmp (path, concat6 (dir_separator_str, "usr",
4211 dir_separator_str, "lib",
4212 dir_separator_str, ".")) == 0)))
4215 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4218 /* On fatal signals, delete all the temporary files. */
4221 fatal_error (signum)
4224 signal (signum, SIG_DFL);
4225 delete_failure_queue ();
4226 delete_temp_files ();
4227 /* Get the same signal again, this time not handled,
4228 so its normal effect occurs. */
4229 kill (getpid (), signum);
4240 int linker_was_run = 0;
4241 char *explicit_link_files;
4245 p = argv[0] + strlen (argv[0]);
4246 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4249 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4250 signal (SIGINT, fatal_error);
4252 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4253 signal (SIGHUP, fatal_error);
4255 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4256 signal (SIGTERM, fatal_error);
4258 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4259 signal (SIGPIPE, fatal_error);
4263 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4265 obstack_init (&obstack);
4267 /* Set up to remember the pathname of gcc and any options
4268 needed for collect. We use argv[0] instead of programname because
4269 we need the complete pathname. */
4270 obstack_init (&collect_obstack);
4271 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4272 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4273 putenv (obstack_finish (&collect_obstack));
4275 /* Choose directory for temp files. */
4277 choose_temp_base ();
4279 /* Make a table of what switches there are (switches, n_switches).
4280 Make a table of specified input files (infiles, n_infiles).
4281 Decode switches that are handled locally. */
4283 process_command (argc, argv);
4285 /* Initialize the vector of specs to just the default.
4286 This means one element containing 0s, as a terminator. */
4288 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4289 bcopy ((char *) default_compilers, (char *) compilers,
4290 sizeof default_compilers);
4291 n_compilers = n_default_compilers;
4293 /* Read specs from a file if there is one. */
4295 machine_suffix = concat4 (spec_machine, dir_separator_str,
4296 spec_version, dir_separator_str);
4297 just_machine_suffix = concat (spec_machine, dir_separator_str);
4299 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4300 /* Read the specs file unless it is a default one. */
4301 if (specs_file != 0 && strcmp (specs_file, "specs"))
4302 read_specs (specs_file);
4304 /* If not cross-compiling, look for startfiles in the standard places. */
4305 /* The fact that these are done here, after reading the specs file,
4306 means that it cannot be found in these directories.
4307 But that's okay. It should never be there anyway. */
4310 #ifdef MD_EXEC_PREFIX
4311 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4312 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4315 #ifdef MD_STARTFILE_PREFIX
4316 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4319 #ifdef MD_STARTFILE_PREFIX_1
4320 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4323 /* If standard_startfile_prefix is relative, base it on
4324 standard_exec_prefix. This lets us move the installed tree
4325 as a unit. If GCC_EXEC_PREFIX is defined, base
4326 standard_startfile_prefix on that as well. */
4327 if (*standard_startfile_prefix == '/'
4328 || *standard_startfile_prefix == DIR_SEPARATOR)
4329 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4333 if (gcc_exec_prefix)
4334 add_prefix (&startfile_prefixes,
4335 concat (gcc_exec_prefix, standard_startfile_prefix),
4337 add_prefix (&startfile_prefixes,
4338 concat3 (standard_exec_prefix,
4340 standard_startfile_prefix),
4344 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4346 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4348 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4349 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4353 /* Now we have the specs.
4354 Set the `valid' bits for switches that match anything in any spec. */
4356 validate_all_switches ();
4358 /* Now that we have the switches and the specs, set
4359 the subdirectory based on the options. */
4360 set_multilib_dir ();
4362 /* Warn about any switches that no pass was interested in. */
4364 for (i = 0; i < n_switches; i++)
4365 if (! switches[i].valid)
4366 error ("unrecognized option `-%s'", switches[i].part1);
4368 /* Obey some of the options. */
4370 if (print_file_name)
4372 printf ("%s\n", find_file (print_file_name));
4376 if (print_prog_name)
4378 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4379 printf ("%s\n", (newname ? newname : print_prog_name));
4383 if (print_multi_lib)
4385 print_multilib_info ();
4389 if (print_multi_directory)
4391 if (multilib_dir == NULL)
4394 printf ("%s\n", multilib_dir);
4400 if (! strcmp (version_string, compiler_version))
4401 fprintf (stderr, "gcc version %s\n", version_string);
4403 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4404 version_string, compiler_version);
4411 fatal ("No input files");
4413 /* Make a place to record the compiler output file names
4414 that correspond to the input files. */
4416 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4417 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4419 /* Record which files were specified explicitly as link input. */
4421 explicit_link_files = xmalloc (n_infiles);
4422 bzero (explicit_link_files, n_infiles);
4424 for (i = 0; i < n_infiles; i++)
4426 register struct compiler *cp = 0;
4427 int this_file_error = 0;
4429 /* Tell do_spec what to substitute for %i. */
4431 input_filename = infiles[i].name;
4432 input_filename_length = strlen (input_filename);
4433 input_file_number = i;
4435 /* Use the same thing in %o, unless cp->spec says otherwise. */
4437 outfiles[i] = input_filename;
4439 /* Figure out which compiler from the file's suffix. */
4441 cp = lookup_compiler (infiles[i].name, input_filename_length,
4442 infiles[i].language);
4446 /* Ok, we found an applicable compiler. Run its spec. */
4447 /* First say how much of input_filename to substitute for %b */
4451 input_basename = input_filename;
4452 for (p = input_filename; *p; p++)
4453 if (*p == '/' || *p == DIR_SEPARATOR)
4454 input_basename = p + 1;
4456 /* Find a suffix starting with the last period,
4457 and set basename_length to exclude that suffix. */
4458 basename_length = strlen (input_basename);
4459 p = input_basename + basename_length;
4460 while (p != input_basename && *p != '.') --p;
4461 if (*p == '.' && p != input_basename)
4463 basename_length = p - input_basename;
4464 input_suffix = p + 1;
4470 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4472 len += strlen (cp->spec[j]);
4474 p = (char *) xmalloc (len + 1);
4477 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4480 strcpy (p + len, cp->spec[j]);
4481 len += strlen (cp->spec[j]);
4484 value = do_spec (p);
4487 this_file_error = 1;
4490 /* If this file's name does not contain a recognized suffix,
4491 record it as explicit linker input. */
4494 explicit_link_files[i] = 1;
4496 /* Clear the delete-on-failure queue, deleting the files in it
4497 if this compilation failed. */
4499 if (this_file_error)
4501 delete_failure_queue ();
4504 /* If this compilation succeeded, don't delete those files later. */
4505 clear_failure_queue ();
4508 /* Run ld to link all the compiler output files. */
4510 if (error_count == 0)
4512 int tmp = execution_count;
4516 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4518 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4519 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4521 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4523 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4524 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4527 for (i = 0; i < n_switches; i++)
4531 obstack_grow (&collect_obstack, " ", 1);
4534 obstack_grow (&collect_obstack, "-", 1);
4535 obstack_grow (&collect_obstack, switches[i].part1,
4536 strlen (switches[i].part1));
4538 for (args = switches[i].args; args && *args; args++)
4540 obstack_grow (&collect_obstack, " ", 1);
4541 obstack_grow (&collect_obstack, *args, strlen (*args));
4544 obstack_grow (&collect_obstack, "\0", 1);
4545 putenv (obstack_finish (&collect_obstack));
4547 value = do_spec (link_command_spec);
4550 linker_was_run = (tmp != execution_count);
4553 /* Warn if a -B option was specified but the prefix was never used. */
4554 unused_prefix_warnings (&exec_prefixes);
4555 unused_prefix_warnings (&startfile_prefixes);
4557 /* If options said don't run linker,
4558 complain about input files to be given to the linker. */
4560 if (! linker_was_run && error_count == 0)
4561 for (i = 0; i < n_infiles; i++)
4562 if (explicit_link_files[i])
4563 error ("%s: linker input file unused since linking not done",
4566 /* Delete some or all of the temporary files we made. */
4569 delete_failure_queue ();
4570 delete_temp_files ();
4572 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4577 /* Find the proper compilation spec for the file name NAME,
4578 whose length is LENGTH. LANGUAGE is the specified language,
4579 or 0 if none specified. */
4581 static struct compiler *
4582 lookup_compiler (name, length, language)
4587 struct compiler *cp;
4589 /* Look for the language, if one is spec'd. */
4592 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4596 if (cp->suffix[0] == '@'
4597 && !strcmp (cp->suffix + 1, language))
4601 error ("language %s not recognized", language);
4604 /* Look for a suffix. */
4605 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4607 if (/* The suffix `-' matches only the file name `-'. */
4608 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4610 (strlen (cp->suffix) < length
4611 /* See if the suffix matches the end of NAME. */
4613 && (!strcmp (cp->suffix,
4614 name + length - strlen (cp->suffix))
4615 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4616 && !strcasecmp (cp->suffix,
4617 name + length - strlen (cp->suffix)))))
4619 && !strcmp (cp->suffix,
4620 name + length - strlen (cp->suffix))))
4623 if (cp->spec[0][0] == '@')
4625 struct compiler *new;
4626 /* An alias entry maps a suffix to a language.
4627 Search for the language; pass 0 for NAME and LENGTH
4628 to avoid infinite recursion if language not found.
4629 Construct the new compiler spec. */
4630 language = cp->spec[0] + 1;
4631 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4632 new->suffix = cp->suffix;
4633 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4634 (char *) new->spec, sizeof new->spec);
4637 /* A non-alias entry: return it. */
4649 register char *value = (char *) malloc (size);
4651 fatal ("virtual memory exhausted");
4656 xrealloc (ptr, size)
4660 register char *value = (char *) realloc (ptr, size);
4662 fatal ("virtual memory exhausted");
4666 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4672 int len1 = strlen (s1);
4673 int len2 = strlen (s2);
4674 char *result = xmalloc (len1 + len2 + 1);
4676 strcpy (result, s1);
4677 strcpy (result + len1, s2);
4678 *(result + len1 + len2) = 0;
4684 concat3 (s1, s2, s3)
4687 return concat (concat (s1, s2), s3);
4691 concat4 (s1, s2, s3, s4)
4692 char *s1, *s2, *s3, *s4;
4694 return concat (concat (s1, s2), concat (s3, s4));
4698 concat6 (s1, s2, s3, s4, s5, s6)
4699 char *s1, *s2, *s3, *s4, *s5, *s6;
4701 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4705 save_string (s, len)
4709 register char *result = xmalloc (len + 1);
4711 bcopy (s, result, len);
4717 pfatal_with_name (name)
4722 if (errno < sys_nerr)
4723 s = concat ("%s: ", sys_errlist[errno]);
4725 s = "cannot open %s";
4730 perror_with_name (name)
4735 if (errno < sys_nerr)
4736 s = concat ("%s: ", sys_errlist[errno]);
4738 s = "cannot open %s";
4748 if (errno < sys_nerr)
4749 s = concat ("installation problem, cannot exec %s: ", sys_errlist[errno]);
4751 s = "installation problem, cannot exec %s";
4755 /* More 'friendly' abort that prints the line and file.
4756 config.h can #define abort fancy_abort if you like that sort of thing. */
4761 fatal ("Internal gcc abort.");
4766 /* Output an error message and exit */
4769 fatal VPROTO((char *format, ...))
4776 VA_START (ap, format);
4779 format = va_arg (ap, char*);
4782 fprintf (stderr, "%s: ", programname);
4783 vfprintf (stderr, format, ap);
4785 fprintf (stderr, "\n");
4786 delete_temp_files ();
4791 error VPROTO((char *format, ...))
4798 VA_START (ap, format);
4801 format = va_arg (ap, char*);
4804 fprintf (stderr, "%s: ", programname);
4805 vfprintf (stderr, format, ap);
4808 fprintf (stderr, "\n");
4811 #else /* not HAVE_VPRINTF */
4814 fatal (msg, arg1, arg2)
4815 char *msg, *arg1, *arg2;
4817 error (msg, arg1, arg2);
4818 delete_temp_files ();
4823 error (msg, arg1, arg2)
4824 char *msg, *arg1, *arg2;
4826 fprintf (stderr, "%s: ", programname);
4827 fprintf (stderr, msg, arg1, arg2);
4828 fprintf (stderr, "\n");
4831 #endif /* not HAVE_VPRINTF */
4835 validate_all_switches ()
4837 struct compiler *comp;
4840 struct spec_list *spec;
4842 for (comp = compilers; comp->spec[0]; comp++)
4845 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4849 if (c == '%' && *p == '{')
4850 /* We have a switch spec. */
4851 validate_switches (p + 1);
4855 /* look through the linked list of extra specs read from the specs file */
4856 for (spec = specs; spec ; spec = spec->next)
4860 if (c == '%' && *p == '{')
4861 /* We have a switch spec. */
4862 validate_switches (p + 1);
4865 p = link_command_spec;
4867 if (c == '%' && *p == '{')
4868 /* We have a switch spec. */
4869 validate_switches (p + 1);
4871 /* Now notice switches mentioned in the machine-specific specs. */
4875 if (c == '%' && *p == '{')
4876 /* We have a switch spec. */
4877 validate_switches (p + 1);
4881 if (c == '%' && *p == '{')
4882 /* We have a switch spec. */
4883 validate_switches (p + 1);
4887 if (c == '%' && *p == '{')
4888 /* We have a switch spec. */
4889 validate_switches (p + 1);
4891 p = signed_char_spec;
4893 if (c == '%' && *p == '{')
4894 /* We have a switch spec. */
4895 validate_switches (p + 1);
4899 if (c == '%' && *p == '{')
4900 /* We have a switch spec. */
4901 validate_switches (p + 1);
4905 if (c == '%' && *p == '{')
4906 /* We have a switch spec. */
4907 validate_switches (p + 1);
4911 if (c == '%' && *p == '{')
4912 /* We have a switch spec. */
4913 validate_switches (p + 1);
4917 if (c == '%' && *p == '{')
4918 /* We have a switch spec. */
4919 validate_switches (p + 1);
4923 if (c == '%' && *p == '{')
4924 /* We have a switch spec. */
4925 validate_switches (p + 1);
4929 if (c == '%' && *p == '{')
4930 /* We have a switch spec. */
4931 validate_switches (p + 1);
4934 /* Look at the switch-name that comes after START
4935 and mark as valid all supplied switches that match it. */
4938 validate_switches (start)
4941 register char *p = start;
4956 while (*p != ':' && *p != '}') p++;
4960 else if (p[-1] == '*')
4962 /* Mark all matching switches as valid. */
4964 for (i = 0; i < n_switches; i++)
4965 if (!strncmp (switches[i].part1, filter, p - filter))
4966 switches[i].valid = 1;
4970 /* Mark an exact matching switch as valid. */
4971 for (i = 0; i < n_switches; i++)
4973 if (!strncmp (switches[i].part1, filter, p - filter)
4974 && switches[i].part1[p - filter] == 0)
4975 switches[i].valid = 1;
4980 /* Check whether a particular argument was used. */
4989 for (i = 0; i < n_switches; i++)
4990 if (! strncmp (switches[i].part1, p, len)
4991 && strlen (switches[i].part1) == len)
4996 /* Work out the subdirectory to use based on the
4997 options. The format of multilib_select is a list of elements.
4998 Each element is a subdirectory name followed by a list of options
4999 followed by a semicolon. gcc will consider each line in turn. If
5000 none of the options beginning with an exclamation point are
5001 present, and all of the other options are present, that
5002 subdirectory will be used. */
5007 char *p = multilib_select;
5009 char *this_path, *this_arg;
5014 /* Ignore newlines. */
5021 /* Get the initial path. */
5029 this_path_len = p - this_path;
5031 /* Check the arguments. */
5046 while (*p != ' ' && *p != ';')
5053 if (*this_arg == '!')
5054 failed = used_arg (this_arg + 1, p - (this_arg + 1));
5056 failed = ! used_arg (this_arg, p - this_arg);
5064 if (this_path_len != 1
5065 || this_path[0] != '.')
5067 multilib_dir = xmalloc (this_path_len + 1);
5068 strncpy (multilib_dir, this_path, this_path_len);
5069 multilib_dir[this_path_len] = '\0';
5078 /* Print out the multiple library subdirectory selection
5079 information. This prints out a series of lines. Each line looks
5080 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5081 required. Only the desired options are printed out, the negative
5082 matches. The options are print without a leading dash. There are
5083 no spaces to make it easy to use the information in the shell.
5084 Each subdirectory is printed only once. This assumes the ordering
5085 generated by the genmultilib script. */
5088 print_multilib_info ()
5090 char *p = multilib_select;
5091 char *last_path, *this_path;
5093 int last_path_len = 0;
5097 /* Ignore newlines. */
5104 /* Get the initial path. */
5113 /* If this is a duplicate, skip it. */
5114 skip = (p - this_path == last_path_len
5115 && ! strncmp (last_path, this_path, last_path_len));
5117 last_path = this_path;
5118 last_path_len = p - this_path;
5124 for (p1 = last_path; p1 < p; p1++)
5143 use_arg = *p != '!';
5148 while (*p != ' ' && *p != ';')