1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 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, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
34 #include <sys/types.h>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
57 /* Include multi-lib information. */
67 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
70 #define WTERMSIG(S) ((S) & 0x7f)
73 #define WIFEXITED(S) (((S) & 0xff) == 0)
76 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
79 /* Add prototype support. */
81 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
82 #define PROTO(ARGS) ARGS
84 #define PROTO(ARGS) ()
90 #define PVPROTO(ARGS) ARGS
91 #define VPROTO(ARGS) ARGS
92 #define VA_START(va_list,var) va_start(va_list,var)
94 #define PVPROTO(ARGS) ()
95 #define VPROTO(ARGS) (va_alist) va_dcl
96 #define VA_START(va_list,var) va_start(va_list)
100 /* Define a generic NULL if one hasn't already been defined. */
106 /* Define O_RDONLY if the system hasn't defined it for us. */
112 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
113 #define GENERIC_PTR void *
115 #define GENERIC_PTR char *
120 #define NULL_PTR ((GENERIC_PTR)0)
127 /* On MSDOS, write temp files in current dir
128 because there's no place else we can expect to use. */
135 /* Test if something is a normal file. */
137 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
140 /* Test if something is a directory. */
142 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
145 /* By default there is no special suffix for executables. */
146 #ifndef EXECUTABLE_SUFFIX
147 #define EXECUTABLE_SUFFIX ""
150 /* By default, the suffix for object files is ".o". */
152 #define HAVE_OBJECT_SUFFIX
154 #define OBJECT_SUFFIX ".o"
157 /* By default, colon separates directories in a path. */
158 #ifndef PATH_SEPARATOR
159 #define PATH_SEPARATOR ':'
162 #ifndef DIR_SEPARATOR
163 #define DIR_SEPARATOR '/'
166 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
168 #define obstack_chunk_alloc xmalloc
169 #define obstack_chunk_free free
172 extern char *getenv ();
178 #ifndef HAVE_STRERROR
181 extern const char *const sys_errlist[];
183 extern char *sys_errlist[];
186 extern char *strerror();
189 extern int execv (), execvp ();
191 /* If a stage of compilation returns an exit status >= 1,
192 compilation of that file ceases. */
194 #define MIN_FATAL_STATUS 1
196 /* Flag saying to print the directories gcc will search through looking for
197 programs, libraries, etc. */
199 static int print_search_dirs;
201 /* Flag saying to print the full filename of this file
202 as found through our usual search mechanism. */
204 static char *print_file_name = NULL;
206 /* As print_file_name, but search for executable file. */
208 static char *print_prog_name = NULL;
210 /* Flag saying to print the relative path we'd use to
211 find libgcc.a given the current compiler flags. */
213 static int print_multi_directory;
215 /* Flag saying to print the list of subdirectories and
216 compiler flags used to select them in a standard form. */
218 static int print_multi_lib;
220 /* Flag indicating whether we should print the command and arguments */
222 static int verbose_flag;
224 /* Nonzero means write "temp" files in source directory
225 and use the source file's name in them, and don't delete them. */
227 static int save_temps_flag;
229 /* The compiler version. */
231 static char *compiler_version;
233 /* The target version specified with -V */
235 static char *spec_version = DEFAULT_TARGET_VERSION;
237 /* The target machine specified with -b. */
239 static char *spec_machine = DEFAULT_TARGET_MACHINE;
241 /* Nonzero if cross-compiling.
242 When -b is used, the value comes from the `specs' file. */
245 static int cross_compile = 1;
247 static int cross_compile = 0;
250 /* The number of errors that have occurred; the link phase will not be
251 run if this is non-zero. */
252 static int error_count = 0;
254 /* This is the obstack which we use to allocate many strings. */
256 static struct obstack obstack;
258 /* This is the obstack to build an environment variable to pass to
259 collect2 that describes all of the relevant switches of what to
260 pass the compiler in building the list of pointers to constructors
263 static struct obstack collect_obstack;
265 extern char *version_string;
267 /* Forward declaration for prototypes. */
270 static void set_spec PROTO((char *, char *));
271 static struct compiler *lookup_compiler PROTO((char *, int, char *));
272 static char *build_search_list PROTO((struct path_prefix *, char *, int));
273 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
274 static char *find_a_file PROTO((struct path_prefix *, char *, int));
275 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
276 static char *skip_whitespace PROTO((char *));
277 static void record_temp_file PROTO((char *, int, int));
278 static void delete_if_ordinary PROTO((char *));
279 static void delete_temp_files PROTO((void));
280 static void delete_failure_queue PROTO((void));
281 static void clear_failure_queue PROTO((void));
282 static char *choose_temp_base_try PROTO((char *, char *));
283 static void choose_temp_base PROTO((void));
284 static int check_live_switch PROTO((int, int));
285 static char *handle_braces PROTO((char *));
286 static char *save_string PROTO((char *, int));
287 static char *concat PROTO((char *, char *));
288 static char *concat3 PROTO((char *, char *, char *));
289 static char *concat4 PROTO((char *, char *, char *, char *));
290 static char *concat6 PROTO((char *, char *, char *, char *, char *, \
292 static int do_spec PROTO((char *));
293 static int do_spec_1 PROTO((char *, int, char *));
294 static char *find_file PROTO((char *));
295 static int is_directory PROTO((char *, char *, int));
296 static void validate_switches PROTO((char *));
297 static void validate_all_switches PROTO((void));
298 static void give_switch PROTO((int, int));
299 static int used_arg PROTO((char *, int));
300 static int default_arg PROTO((char *, int));
301 static void set_multilib_dir PROTO((void));
302 static void print_multilib_info PROTO((void));
303 static void pfatal_with_name PROTO((char *));
304 static void perror_with_name PROTO((char *));
305 static void perror_exec PROTO((char *));
307 static void fatal PVPROTO((char *, ...));
308 static void error PVPROTO((char *, ...));
310 /* We must not provide any prototype here, even if ANSI C. */
311 static void fatal PROTO(());
312 static void error PROTO(());
319 /* Specs are strings containing lines, each of which (if not blank)
320 is made up of a program name, and arguments separated by spaces.
321 The program name must be exact and start from root, since no path
322 is searched and it is unreliable to depend on the current working directory.
323 Redirection of input or output is not supported; the subprograms must
324 accept filenames saying what files to read and write.
326 In addition, the specs can contain %-sequences to substitute variable text
327 or for conditional text. Here is a table of all defined %-sequences.
328 Note that spaces are not generated automatically around the results of
329 expanding these sequences; therefore, you can concatenate them together
330 or with constant text in a single argument.
332 %% substitute one % into the program name or argument.
333 %i substitute the name of the input file being processed.
334 %b substitute the basename of the input file being processed.
335 This is the substring up to (and not including) the last period
336 and not including the directory.
337 %g substitute the temporary-file-name-base. This is a string chosen
338 once per compilation. Different temporary file names are made by
339 concatenation of constant strings on the end, as in `%g.s'.
340 %g also has the same effect of %d.
341 %u like %g, but make the temporary file name unique.
342 %U returns the last file name generated with %u.
343 %d marks the argument containing or following the %d as a
344 temporary file name, so that that file will be deleted if CC exits
345 successfully. Unlike %g, this contributes no text to the argument.
346 %w marks the argument containing or following the %w as the
347 "output file" of this compilation. This puts the argument
348 into the sequence of arguments that %o will substitute later.
350 like %{...} but mark last argument supplied within
351 as a file to be deleted on failure.
352 %o substitutes the names of all the output files, with spaces
353 automatically placed around them. You should write spaces
354 around the %o as well or the results are undefined.
355 %o is for use in the specs for running the linker.
356 Input files whose names have no recognized suffix are not compiled
357 at all, but they are included among the output files, so they will
359 %O substitutes the suffix for object files.
360 %p substitutes the standard macro predefinitions for the
361 current target machine. Use this when running cpp.
362 %P like %p, but puts `__' before and after the name of each macro.
363 (Except macros that already have __.)
365 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
366 %s current argument is the name of a library or startup file of some sort.
367 Search for that file in a standard list of directories
368 and substitute the full name found.
369 %eSTR Print STR as an error message. STR is terminated by a newline.
370 Use this when inconsistent options are detected.
371 %x{OPTION} Accumulate an option for %X.
372 %X Output the accumulated linker options specified by compilations.
373 %Y Output the accumulated assembler options specified by compilations.
374 %Z Output the accumulated preprocessor options specified by compilations.
375 %v1 Substitute the major version number of GCC.
376 (For version 2.5.n, this is 2.)
377 %v2 Substitute the minor version number of GCC.
378 (For version 2.5.n, this is 5.)
379 %a process ASM_SPEC as a spec.
380 This allows config.h to specify part of the spec for running as.
381 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
382 used here. This can be used to run a post-processor after the
383 assembler has done it's job.
384 %D Dump out a -L option for each directory in startfile_prefixes.
385 If multilib_dir is set, extra entries are generated with it affixed.
386 %l process LINK_SPEC as a spec.
387 %L process LIB_SPEC as a spec.
388 %G process LIBGCC_SPEC as a spec.
389 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
390 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
391 %c process SIGNED_CHAR_SPEC as a spec.
392 %C process CPP_SPEC as a spec. A capital C is actually used here.
393 %1 process CC1_SPEC as a spec.
394 %2 process CC1PLUS_SPEC as a spec.
395 %| output "-" if the input for the current command is coming from a pipe.
396 %* substitute the variable part of a matched option. (See below.)
397 Note that each comma in the substituted string is replaced by
399 %{S} substitutes the -S switch, if that switch was given to CC.
400 If that switch was not specified, this substitutes nothing.
401 Here S is a metasyntactic variable.
402 %{S*} substitutes all the switches specified to CC whose names start
403 with -S. This is used for -o, -D, -I, etc; switches that take
404 arguments. CC considers `-o foo' as being one switch whose
405 name starts with `o'. %{o*} would substitute this text,
406 including the space; thus, two arguments would be generated.
407 %{S*:X} substitutes X if one or more switches whose names start with -S are
408 specified to CC. Note that the tail part of the -S option
409 (i.e. the part matched by the `*') will be substituted for each
410 occurrence of %* within X.
411 %{S:X} substitutes X, but only if the -S switch was given to CC.
412 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
413 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
414 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
415 %{.S:X} substitutes X, but only if processing a file with suffix S.
416 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
417 %(Spec) processes a specification defined in a specs file as *Spec:
418 %[Spec] as above, but put __ around -D arguments
420 The conditional text X in a %{S:X} or %{!S:X} construct may contain
421 other nested % constructs or spaces, or even newlines. They are
422 processed as usual, as described above.
424 The -O, -f, -m, and -W switches are handled specifically in these
425 constructs. If another value of -O or the negated form of a -f, -m, or
426 -W switch is found later in the command line, the earlier switch
427 value is ignored, except with {S*} where S is just one letter; this
428 passes all matching options.
430 The character | is used to indicate that a command should be piped to
431 the following command, but only if -pipe is specified.
433 Note that it is built into CC which switches take arguments and which
434 do not. You might think it would be useful to generalize this to
435 allow each compiler's spec to say which switches take arguments. But
436 this cannot be done in a consistent fashion. CC cannot even decide
437 which input files have been specified without knowing which switches
438 take arguments, and it must know which input files to compile in order
439 to tell which compilers to run.
441 CC also knows implicitly that arguments starting in `-l' are to be
442 treated as compiler output files, and passed to the linker in their
443 proper position among the other output files. */
445 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
447 /* config.h can define ASM_SPEC to provide extra args to the assembler
448 or extra switch-translations. */
453 /* config.h can define ASM_FINAL_SPEC to run a post processor after
454 the assembler has run. */
455 #ifndef ASM_FINAL_SPEC
456 #define ASM_FINAL_SPEC ""
459 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
460 or extra switch-translations. */
465 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
466 or extra switch-translations. */
471 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
472 or extra switch-translations. */
474 #define CC1PLUS_SPEC ""
477 /* config.h can define LINK_SPEC to provide extra args to the linker
478 or extra switch-translations. */
483 /* config.h can define LIB_SPEC to override the default libraries. */
485 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
488 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
491 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
492 /* Have gcc do the search for libgcc.a. */
493 #define LIBGCC_SPEC "libgcc.a%s"
495 #define LIBGCC_SPEC "-lgcc"
499 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
500 #ifndef STARTFILE_SPEC
501 #define STARTFILE_SPEC \
502 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
505 /* config.h can define SWITCHES_NEED_SPACES to control which options
506 require spaces between the option and the argument. */
507 #ifndef SWITCHES_NEED_SPACES
508 #define SWITCHES_NEED_SPACES ""
511 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
513 #define ENDFILE_SPEC ""
516 /* This spec is used for telling cpp whether char is signed or not. */
517 #ifndef SIGNED_CHAR_SPEC
518 /* Use #if rather than ?:
519 because MIPS C compiler rejects like ?: in initializers. */
520 #if DEFAULT_SIGNED_CHAR
521 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
523 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
527 /* MULTILIB_SELECT comes from multilib.h. It gives a
528 string interpreted by set_multilib_dir to select a library
529 subdirectory based on the compiler options. */
530 #ifndef MULTILIB_SELECT
531 #define MULTILIB_SELECT ". ;"
534 static char *cpp_spec = CPP_SPEC;
535 static char *cpp_predefines = CPP_PREDEFINES;
536 static char *cc1_spec = CC1_SPEC;
537 static char *cc1plus_spec = CC1PLUS_SPEC;
538 static char *signed_char_spec = SIGNED_CHAR_SPEC;
539 static char *asm_spec = ASM_SPEC;
540 static char *asm_final_spec = ASM_FINAL_SPEC;
541 static char *link_spec = LINK_SPEC;
542 static char *lib_spec = LIB_SPEC;
543 static char *libgcc_spec = LIBGCC_SPEC;
544 static char *endfile_spec = ENDFILE_SPEC;
545 static char *startfile_spec = STARTFILE_SPEC;
546 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
547 static char *multilib_select = MULTILIB_SELECT;
550 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
553 /* This defines which switch letters take arguments. */
555 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
556 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
557 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
558 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
559 || (CHAR) == 'L' || (CHAR) == 'A')
561 #ifndef SWITCH_TAKES_ARG
562 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
565 /* This defines which multi-letter switches take arguments. */
567 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
568 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
569 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
570 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
571 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
572 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
573 || !strcmp (STR, "isystem"))
575 #ifndef WORD_SWITCH_TAKES_ARG
576 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
579 /* Record the mapping from file suffixes for compilation specs. */
583 char *suffix; /* Use this compiler for input files
584 whose names end in this suffix. */
586 char *spec[4]; /* To use this compiler, concatenate these
587 specs and pass to do_spec. */
590 /* Pointer to a vector of `struct compiler' that gives the spec for
591 compiling a file, based on its suffix.
592 A file that does not end in any of these suffixes will be passed
593 unchanged to the loader and nothing else will be done to it.
595 An entry containing two 0s is used to terminate the vector.
597 If multiple entries match a file, the last matching one is used. */
599 static struct compiler *compilers;
601 /* Number of entries in `compilers', not counting the null terminator. */
603 static int n_compilers;
605 /* The default list of file name suffixes and their compilation specs. */
607 static struct compiler default_compilers[] =
611 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
612 %{C:%{!E:%eGNU C does not support -C without using -E}}\
613 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
614 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
615 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
616 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
617 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
618 %{traditional-cpp:-traditional}\
619 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
620 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
621 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
622 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
623 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
624 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
626 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
627 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
629 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
630 %{!pipe:%g.s} %A\n }}}}"},
632 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
633 %{C:%{!E:%eGNU C does not support -C without using -E}}\
634 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
635 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
636 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
637 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
638 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
639 %{traditional-cpp:-traditional}\
640 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
642 %{!E:%e-E required when input is from standard input}"},
643 {".m", "@objective-c"},
645 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
646 %{C:%{!E:%eGNU C does not support -C without using -E}}\
647 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
648 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
649 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
650 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
651 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
652 %{traditional-cpp:-traditional}\
653 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
654 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
655 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
656 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
657 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
658 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
659 -lang-objc %{gen-decls} \
661 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
662 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
664 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
665 %{!pipe:%g.s} %A\n }}}}"},
668 "%{!E:%eCompilation of header file requested} \
669 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
670 %{C:%{!E:%eGNU C does not support -C without using -E}}\
671 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
672 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
673 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
674 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
675 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
676 %{traditional-cpp:-traditional}\
677 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
679 {".i", "@cpp-output"},
681 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
682 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
683 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
685 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
686 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
688 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
689 %{!pipe:%g.s} %A\n }}}}"},
690 {".s", "@assembler"},
692 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
693 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
695 {".S", "@assembler-with-cpp"},
696 {"@assembler-with-cpp",
697 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
698 %{C:%{!E:%eGNU C does not support -C without using -E}}\
699 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
700 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
701 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
702 %{traditional-cpp:-traditional}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
704 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
705 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
706 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
707 %{!pipe:%g.s} %A\n }}}}"},
709 /* Mark end of table */
713 /* Number of elements in default_compilers, not counting the terminator. */
715 static int n_default_compilers
716 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
718 /* Here is the spec for running the linker, after compiling all files. */
720 /* -u* was put back because both BSD and SysV seem to support it. */
721 /* %{static:} simply prevents an error message if the target machine
722 doesn't handle -static. */
723 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
724 scripts which exist in user specified directories, or in standard
726 #ifdef LINK_LIBGCC_SPECIAL
727 /* Don't generate -L options. */
728 static char *link_command_spec = "\
730 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
731 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
732 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
733 %{static:} %{L*} %{T*} %o\
734 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
735 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
738 static char *link_command_spec = "\
740 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
741 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
742 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
743 %{static:} %{L*} %D %{T*} %o\
744 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
745 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
748 /* A vector of options to give to the linker.
749 These options are accumulated by %x,
750 and substituted into the linker command with %X. */
751 static int n_linker_options;
752 static char **linker_options;
754 /* A vector of options to give to the assembler.
755 These options are accumulated by -Wa,
756 and substituted into the assembler command with %Y. */
757 static int n_assembler_options;
758 static char **assembler_options;
760 /* A vector of options to give to the preprocessor.
761 These options are accumulated by -Wp,
762 and substituted into the preprocessor command with %Z. */
763 static int n_preprocessor_options;
764 static char **preprocessor_options;
766 /* Define how to map long options into short ones. */
768 /* This structure describes one mapping. */
771 /* The long option's name. */
773 /* The equivalent short option. */
775 /* Argument info. A string of flag chars; NULL equals no options.
776 a => argument required.
777 o => argument optional.
778 j => join argument to equivalent, making one word.
779 * => require other text after NAME as an argument. */
783 /* This is the table of mappings. Mappings are tried sequentially
784 for each option encountered; the first one that matches, wins. */
786 struct option_map option_map[] =
788 {"--all-warnings", "-Wall", 0},
789 {"--ansi", "-ansi", 0},
790 {"--assemble", "-S", 0},
791 {"--assert", "-A", "a"},
792 {"--comments", "-C", 0},
793 {"--compile", "-c", 0},
794 {"--debug", "-g", "oj"},
795 {"--define-macro", "-D", "a"},
796 {"--dependencies", "-M", 0},
797 {"--dump", "-d", "a"},
798 {"--dumpbase", "-dumpbase", "a"},
799 {"--entry", "-e", 0},
800 {"--extra-warnings", "-W", 0},
801 {"--for-assembler", "-Wa", "a"},
802 {"--for-linker", "-Xlinker", "a"},
803 {"--force-link", "-u", "a"},
804 {"--imacros", "-imacros", "a"},
805 {"--include", "-include", "a"},
806 {"--include-barrier", "-I-", 0},
807 {"--include-directory", "-I", "a"},
808 {"--include-directory-after", "-idirafter", "a"},
809 {"--include-prefix", "-iprefix", "a"},
810 {"--include-with-prefix", "-iwithprefix", "a"},
811 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
812 {"--include-with-prefix-after", "-iwithprefix", "a"},
813 {"--language", "-x", "a"},
814 {"--library-directory", "-L", "a"},
815 {"--machine", "-m", "aj"},
816 {"--machine-", "-m", "*j"},
817 {"--no-line-commands", "-P", 0},
818 {"--no-precompiled-includes", "-noprecomp", 0},
819 {"--no-standard-includes", "-nostdinc", 0},
820 {"--no-standard-libraries", "-nostdlib", 0},
821 {"--no-warnings", "-w", 0},
822 {"--optimize", "-O", "oj"},
823 {"--output", "-o", "a"},
824 {"--pedantic", "-pedantic", 0},
825 {"--pedantic-errors", "-pedantic-errors", 0},
826 {"--pipe", "-pipe", 0},
827 {"--prefix", "-B", "a"},
828 {"--preprocess", "-E", 0},
829 {"--print-search-dirs", "-print-search-dirs", 0},
830 {"--print-file-name", "-print-file-name=", "aj"},
831 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
832 {"--print-missing-file-dependencies", "-MG", 0},
833 {"--print-multi-lib", "-print-multi-lib", 0},
834 {"--print-multi-directory", "-print-multi-directory", 0},
835 {"--print-prog-name", "-print-prog-name=", "aj"},
836 {"--profile", "-p", 0},
837 {"--profile-blocks", "-a", 0},
838 {"--quiet", "-q", 0},
839 {"--save-temps", "-save-temps", 0},
840 {"--shared", "-shared", 0},
841 {"--silent", "-q", 0},
842 {"--static", "-static", 0},
843 {"--symbolic", "-symbolic", 0},
844 {"--target", "-b", "a"},
845 {"--trace-includes", "-H", 0},
846 {"--traditional", "-traditional", 0},
847 {"--traditional-cpp", "-traditional-cpp", 0},
848 {"--trigraphs", "-trigraphs", 0},
849 {"--undefine-macro", "-U", "a"},
850 {"--use-version", "-V", "a"},
851 {"--user-dependencies", "-MM", 0},
852 {"--verbose", "-v", 0},
853 {"--version", "-dumpversion", 0},
854 {"--warn-", "-W", "*j"},
855 {"--write-dependencies", "-MD", 0},
856 {"--write-user-dependencies", "-MMD", 0},
860 /* Translate the options described by *ARGCP and *ARGVP.
861 Make a new vector and store it back in *ARGVP,
862 and store its length in *ARGVC. */
865 translate_options (argcp, argvp)
871 char **argv = *argvp;
872 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
876 newv[newindex++] = argv[i++];
880 /* Translate -- options. */
881 if (argv[i][0] == '-' && argv[i][1] == '-')
883 /* Find a mapping that applies to this option. */
884 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
886 int optlen = strlen (option_map[j].name);
887 int arglen = strlen (argv[i]);
888 int complen = arglen > optlen ? optlen : arglen;
889 char *arginfo = option_map[j].arg_info;
894 if (!strncmp (argv[i], option_map[j].name, complen))
901 k < sizeof (option_map) / sizeof (option_map[0]);
903 if (strlen (option_map[k].name) >= arglen
904 && !strncmp (argv[i], option_map[k].name, arglen))
906 error ("Ambiguous abbreviation %s", argv[i]);
910 if (k != sizeof (option_map) / sizeof (option_map[0]))
916 /* If the option has an argument, accept that. */
917 if (argv[i][optlen] == '=')
918 arg = argv[i] + optlen + 1;
920 /* If this mapping requires extra text at end of name,
921 accept that as "argument". */
922 else if (index (arginfo, '*') != 0)
923 arg = argv[i] + optlen;
925 /* Otherwise, extra text at end means mismatch.
926 Try other mappings. */
931 else if (index (arginfo, '*') != 0)
933 error ("Incomplete `%s' option", option_map[j].name);
937 /* Handle arguments. */
938 if (index (arginfo, 'a') != 0)
944 error ("Missing argument to `%s' option",
952 else if (index (arginfo, '*') != 0)
954 else if (index (arginfo, 'o') == 0)
957 error ("Extraneous argument to `%s' option",
962 /* Store the translation as one argv elt or as two. */
963 if (arg != 0 && index (arginfo, 'j') != 0)
964 newv[newindex++] = concat (option_map[j].equivalent, arg);
967 newv[newindex++] = option_map[j].equivalent;
968 newv[newindex++] = arg;
971 newv[newindex++] = option_map[j].equivalent;
979 /* Handle old-fashioned options--just copy them through,
980 with their arguments. */
981 else if (argv[i][0] == '-')
983 char *p = argv[i] + 1;
987 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
988 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
989 else if (WORD_SWITCH_TAKES_ARG (p))
990 nskip += WORD_SWITCH_TAKES_ARG (p);
991 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
994 else if (! strcmp (p, "Xlinker"))
997 /* Watch out for an option at the end of the command line that
998 is missing arguments, and avoid skipping past the end of the
1000 if (nskip + i > argc)
1005 newv[newindex++] = argv[i++];
1010 /* Ordinary operands, or +e options. */
1011 newv[newindex++] = argv[i++];
1025 #ifdef HAVE_STRERROR
1030 static char buffer[30];
1032 return "cannot access";
1034 if (e > 0 && e < sys_nerr)
1035 return sys_errlist[e];
1037 sprintf (buffer, "Unknown error %d", e);
1042 /* Read compilation specs from a file named FILENAME,
1043 replacing the default ones.
1045 A suffix which starts with `*' is a definition for
1046 one of the machine-specific sub-specs. The "suffix" should be
1047 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1048 The corresponding spec is stored in asm_spec, etc.,
1049 rather than in the `compilers' vector.
1051 Anything invalid in the file is a fatal error. */
1054 read_specs (filename)
1059 struct stat statbuf;
1064 fprintf (stderr, "Reading specs from %s\n", filename);
1066 /* Open and stat the file. */
1067 desc = open (filename, O_RDONLY, 0);
1069 pfatal_with_name (filename);
1070 if (stat (filename, &statbuf) < 0)
1071 pfatal_with_name (filename);
1073 /* Read contents of file into BUFFER. */
1074 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1075 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1077 pfatal_with_name (filename);
1078 buffer[readlen] = 0;
1081 /* Scan BUFFER for specs, putting them in the vector. */
1087 char *in, *out, *p1, *p2;
1089 /* Advance P in BUFFER to the next nonblank nocomment line. */
1090 p = skip_whitespace (p);
1094 /* Find the colon that should end the suffix. */
1096 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1097 /* The colon shouldn't be missing. */
1099 fatal ("specs file malformed after %d characters", p1 - buffer);
1100 /* Skip back over trailing whitespace. */
1102 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1103 /* Copy the suffix to a string. */
1104 suffix = save_string (p, p2 - p);
1105 /* Find the next line. */
1106 p = skip_whitespace (p1 + 1);
1108 fatal ("specs file malformed after %d characters", p - buffer);
1110 /* Find next blank line. */
1111 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1112 /* Specs end at the blank line and do not include the newline. */
1113 spec = save_string (p, p1 - p);
1116 /* Delete backslash-newline sequences from the spec. */
1121 if (in[0] == '\\' && in[1] == '\n')
1123 else if (in[0] == '#')
1125 while (*in && *in != '\n') in++;
1132 if (suffix[0] == '*')
1134 if (! strcmp (suffix, "*link_command"))
1135 link_command_spec = spec;
1137 set_spec (suffix + 1, spec);
1141 /* Add this pair to the vector. */
1143 = ((struct compiler *)
1144 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1145 compilers[n_compilers].suffix = suffix;
1146 bzero ((char *) compilers[n_compilers].spec,
1147 sizeof compilers[n_compilers].spec);
1148 compilers[n_compilers].spec[0] = spec;
1150 bzero ((char *) &compilers[n_compilers],
1151 sizeof compilers[n_compilers]);
1155 link_command_spec = spec;
1158 if (link_command_spec == 0)
1159 fatal ("spec file has no spec for linking");
1168 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1169 be considered whitespace. */
1170 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1172 else if (*p == '\n' || *p == ' ' || *p == '\t')
1176 while (*p != '\n') p++;
1186 /* Structure to keep track of the specs that have been defined so far. These
1187 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1191 char *name; /* Name of the spec. */
1192 char *spec; /* The spec itself. */
1193 struct spec_list *next; /* Next spec in linked list. */
1196 /* List of specs that have been defined so far. */
1198 static struct spec_list *specs = (struct spec_list *) 0;
1200 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1201 removed; If the spec starts with a + then SPEC is added to the end of the
1205 set_spec (name, spec)
1209 struct spec_list *sl;
1212 /* See if the spec already exists */
1213 for (sl = specs; sl; sl = sl->next)
1214 if (strcmp (sl->name, name) == 0)
1219 /* Not found - make it */
1220 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1221 sl->name = save_string (name, strlen (name));
1222 sl->spec = save_string ("", 0);
1227 old_spec = sl->spec;
1228 if (name && spec[0] == '+' && isspace (spec[1]))
1229 sl->spec = concat (old_spec, spec + 1);
1231 sl->spec = save_string (spec, strlen (spec));
1233 if (! strcmp (name, "asm"))
1234 asm_spec = sl->spec;
1235 else if (! strcmp (name, "asm_final"))
1236 asm_final_spec = sl->spec;
1237 else if (! strcmp (name, "cc1"))
1238 cc1_spec = sl->spec;
1239 else if (! strcmp (name, "cc1plus"))
1240 cc1plus_spec = sl->spec;
1241 else if (! strcmp (name, "cpp"))
1242 cpp_spec = sl->spec;
1243 else if (! strcmp (name, "endfile"))
1244 endfile_spec = sl->spec;
1245 else if (! strcmp (name, "lib"))
1246 lib_spec = sl->spec;
1247 else if (! strcmp (name, "libgcc"))
1248 libgcc_spec = sl->spec;
1249 else if (! strcmp (name, "link"))
1250 link_spec = sl->spec;
1251 else if (! strcmp (name, "predefines"))
1252 cpp_predefines = sl->spec;
1253 else if (! strcmp (name, "signed_char"))
1254 signed_char_spec = sl->spec;
1255 else if (! strcmp (name, "startfile"))
1256 startfile_spec = sl->spec;
1257 else if (! strcmp (name, "switches_need_spaces"))
1258 switches_need_spaces = sl->spec;
1259 else if (! strcmp (name, "cross_compile"))
1260 cross_compile = atoi (sl->spec);
1261 else if (! strcmp (name, "multilib"))
1262 multilib_select = sl->spec;
1267 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1269 if (! strcmp (name, extra_specs[i].name))
1271 extra_specs[i].spec = sl->spec;
1278 /* Free the old spec */
1283 /* Accumulate a command (program name and args), and run it. */
1285 /* Vector of pointers to arguments in the current line of specifications. */
1287 static char **argbuf;
1289 /* Number of elements allocated in argbuf. */
1291 static int argbuf_length;
1293 /* Number of elements in argbuf currently in use (containing args). */
1295 static int argbuf_index;
1297 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1298 temp file. Used only if MKTEMP_EACH_FILE. */
1300 static struct temp_name {
1301 char *suffix; /* suffix associated with the code. */
1302 int length; /* strlen (suffix). */
1303 int unique; /* Indicates whether %g or %u/%U was used. */
1304 char *filename; /* associated filename. */
1305 int filename_length; /* strlen (filename). */
1306 struct temp_name *next;
1309 /* Number of commands executed so far. */
1311 static int execution_count;
1313 /* Number of commands that exited with a signal. */
1315 static int signal_count;
1317 /* Name with which this program was invoked. */
1319 static char *programname;
1321 /* Structures to keep track of prefixes to try when looking for files. */
1325 char *prefix; /* String to prepend to the path. */
1326 struct prefix_list *next; /* Next in linked list. */
1327 int require_machine_suffix; /* Don't use without machine_suffix. */
1328 /* 2 means try both machine_suffix and just_machine_suffix. */
1329 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1334 struct prefix_list *plist; /* List of prefixes to try */
1335 int max_len; /* Max length of a prefix in PLIST */
1336 char *name; /* Name of this list (used in config stuff) */
1339 /* List of prefixes to try when looking for executables. */
1341 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1343 /* List of prefixes to try when looking for startup (crt0) files. */
1345 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1347 /* List of prefixes to try when looking for include files. */
1349 static struct path_prefix include_prefixes = { 0, 0, "include" };
1351 /* Suffix to attach to directories searched for commands.
1352 This looks like `MACHINE/VERSION/'. */
1354 static char *machine_suffix = 0;
1356 /* Suffix to attach to directories searched for commands.
1357 This is just `MACHINE/'. */
1359 static char *just_machine_suffix = 0;
1361 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1363 static char *gcc_exec_prefix;
1365 /* Default prefixes to attach to command names. */
1367 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1368 #undef MD_EXEC_PREFIX
1369 #undef MD_STARTFILE_PREFIX
1370 #undef MD_STARTFILE_PREFIX_1
1373 #ifndef STANDARD_EXEC_PREFIX
1374 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1375 #endif /* !defined STANDARD_EXEC_PREFIX */
1377 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1378 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1379 #ifdef MD_EXEC_PREFIX
1380 static char *md_exec_prefix = MD_EXEC_PREFIX;
1383 #ifndef STANDARD_STARTFILE_PREFIX
1384 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1385 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1387 #ifdef MD_STARTFILE_PREFIX
1388 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1390 #ifdef MD_STARTFILE_PREFIX_1
1391 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1393 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1394 static char *standard_startfile_prefix_1 = "/lib/";
1395 static char *standard_startfile_prefix_2 = "/usr/lib/";
1397 #ifndef TOOLDIR_BASE_PREFIX
1398 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1400 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1401 static char *tooldir_prefix;
1403 /* Subdirectory to use for locating libraries. Set by
1404 set_multilib_dir based on the compilation options. */
1406 static char *multilib_dir;
1408 /* Clear out the vector of arguments (after a command is executed). */
1416 /* Add one argument to the vector at the end.
1417 This is done when a space is seen or at the end of the line.
1418 If DELETE_ALWAYS is nonzero, the arg is a filename
1419 and the file should be deleted eventually.
1420 If DELETE_FAILURE is nonzero, the arg is a filename
1421 and the file should be deleted if this compilation fails. */
1424 store_arg (arg, delete_always, delete_failure)
1426 int delete_always, delete_failure;
1428 if (argbuf_index + 1 == argbuf_length)
1430 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1433 argbuf[argbuf_index++] = arg;
1434 argbuf[argbuf_index] = 0;
1436 if (delete_always || delete_failure)
1437 record_temp_file (arg, delete_always, delete_failure);
1440 /* Record the names of temporary files we tell compilers to write,
1441 and delete them at the end of the run. */
1443 /* This is the common prefix we use to make temp file names.
1444 It is chosen once for each run of this program.
1445 It is substituted into a spec by %g.
1446 Thus, all temp file names contain this prefix.
1447 In practice, all temp file names start with this prefix.
1449 This prefix comes from the envvar TMPDIR if it is defined;
1450 otherwise, from the P_tmpdir macro if that is defined;
1451 otherwise, in /usr/tmp or /tmp. */
1453 static char *temp_filename;
1455 /* Length of the prefix. */
1457 static int temp_filename_length;
1459 /* Define the list of temporary files to delete. */
1464 struct temp_file *next;
1467 /* Queue of files to delete on success or failure of compilation. */
1468 static struct temp_file *always_delete_queue;
1469 /* Queue of files to delete on failure of compilation. */
1470 static struct temp_file *failure_delete_queue;
1472 /* Record FILENAME as a file to be deleted automatically.
1473 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1474 otherwise delete it in any case.
1475 FAIL_DELETE nonzero means delete it if a compilation step fails;
1476 otherwise delete it in any case. */
1479 record_temp_file (filename, always_delete, fail_delete)
1484 register char *name;
1485 name = xmalloc (strlen (filename) + 1);
1486 strcpy (name, filename);
1490 register struct temp_file *temp;
1491 for (temp = always_delete_queue; temp; temp = temp->next)
1492 if (! strcmp (name, temp->name))
1494 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1495 temp->next = always_delete_queue;
1497 always_delete_queue = temp;
1503 register struct temp_file *temp;
1504 for (temp = failure_delete_queue; temp; temp = temp->next)
1505 if (! strcmp (name, temp->name))
1507 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1508 temp->next = failure_delete_queue;
1510 failure_delete_queue = temp;
1515 /* Delete all the temporary files whose names we previously recorded. */
1518 delete_if_ordinary (name)
1525 printf ("Delete %s? (y or n) ", name);
1529 while ((c = getchar ()) != '\n' && c != EOF) ;
1530 if (i == 'y' || i == 'Y')
1532 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1533 if (unlink (name) < 0)
1535 perror_with_name (name);
1539 delete_temp_files ()
1541 register struct temp_file *temp;
1543 for (temp = always_delete_queue; temp; temp = temp->next)
1544 delete_if_ordinary (temp->name);
1545 always_delete_queue = 0;
1548 /* Delete all the files to be deleted on error. */
1551 delete_failure_queue ()
1553 register struct temp_file *temp;
1555 for (temp = failure_delete_queue; temp; temp = temp->next)
1556 delete_if_ordinary (temp->name);
1560 clear_failure_queue ()
1562 failure_delete_queue = 0;
1565 /* Compute a string to use as the base of all temporary file names.
1566 It is substituted for %g. */
1569 choose_temp_base_try (try, base)
1576 else if (try == (char *)0)
1578 else if (access (try, R_OK | W_OK) != 0)
1591 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1592 base = choose_temp_base_try (getenv ("TMP"), base);
1593 base = choose_temp_base_try (getenv ("TEMP"), base);
1596 base = choose_temp_base_try (P_tmpdir, base);
1599 base = choose_temp_base_try (concat4 (dir_separator_str, "usr",
1600 dir_separator_str, "tmp"),
1602 base = choose_temp_base_try (concat (dir_separator_str, "tmp"), base);
1604 /* If all else fails, use the current directory! */
1605 if (base == (char *)0) base = concat(".", dir_separator_str);
1607 len = strlen (base);
1608 temp_filename = xmalloc (len + strlen (concat (dir_separator_str,
1610 strcpy (temp_filename, base);
1611 if (len > 0 && temp_filename[len-1] != '/'
1612 && temp_filename[len-1] != DIR_SEPARATOR)
1613 temp_filename[len++] = DIR_SEPARATOR;
1614 strcpy (temp_filename + len, "ccXXXXXX");
1616 mktemp (temp_filename);
1617 temp_filename_length = strlen (temp_filename);
1618 if (temp_filename_length == 0)
1623 /* Routine to add variables to the environment. We do this to pass
1624 the pathname of the gcc driver, and the directories search to the
1625 collect2 program, which is being run as ld. This way, we can be
1626 sure of executing the right compiler when collect2 wants to build
1627 constructors and destructors. Since the environment variables we
1628 use come from an obstack, we don't have to worry about allocating
1637 #ifndef VMS /* nor about VMS */
1639 extern char **environ;
1640 char **old_environ = environ;
1644 int str_len = strlen (str);
1648 while ((ch = *p++) != '\0' && ch != '=')
1654 /* Search for replacing an existing environment variable, and
1655 count the number of total environment variables. */
1656 for (envp = old_environ; *envp; envp++)
1659 if (!strncmp (str, *envp, name_len))
1666 /* Add a new environment variable */
1667 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1669 bcopy ((char *) old_environ, (char *) (environ + 1),
1670 sizeof (char *) * (num_envs+1));
1675 #endif /* HAVE_PUTENV */
1678 /* Build a list of search directories from PATHS.
1679 PREFIX is a string to prepend to the list.
1680 If CHECK_DIR_P is non-zero we ensure the directory exists.
1681 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1682 It is also used by the --print-search-dirs flag. */
1685 build_search_list (paths, prefix, check_dir_p)
1686 struct path_prefix *paths;
1690 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1692 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1693 int first_time = TRUE;
1694 struct prefix_list *pprefix;
1696 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1698 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1700 int len = strlen (pprefix->prefix);
1704 || is_directory (pprefix->prefix, machine_suffix, 0)))
1707 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1710 obstack_grow (&collect_obstack, pprefix->prefix, len);
1711 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1714 if (just_machine_suffix
1715 && pprefix->require_machine_suffix == 2
1717 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1720 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1723 obstack_grow (&collect_obstack, pprefix->prefix, len);
1724 obstack_grow (&collect_obstack, just_machine_suffix,
1728 if (!pprefix->require_machine_suffix)
1731 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1734 obstack_grow (&collect_obstack, pprefix->prefix, len);
1737 obstack_1grow (&collect_obstack, '\0');
1738 return obstack_finish (&collect_obstack);
1741 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1744 putenv_from_prefixes (paths, env_var)
1745 struct path_prefix *paths;
1748 putenv (build_search_list (paths, env_var, 1));
1751 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1752 access to check permissions.
1753 Return 0 if not found, otherwise return its name, allocated with malloc. */
1756 find_a_file (pprefix, name, mode)
1757 struct path_prefix *pprefix;
1762 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1763 struct prefix_list *pl;
1764 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1767 len += strlen (machine_suffix);
1769 temp = xmalloc (len);
1771 /* Determine the filename to execute (special case for absolute paths). */
1773 if (*name == '/' || *name == DIR_SEPARATOR)
1775 if (access (name, mode))
1777 strcpy (temp, name);
1782 for (pl = pprefix->plist; pl; pl = pl->next)
1786 /* Some systems have a suffix for executable files.
1787 So try appending that first. */
1788 if (file_suffix[0] != 0)
1790 strcpy (temp, pl->prefix);
1791 strcat (temp, machine_suffix);
1792 strcat (temp, name);
1793 strcat (temp, file_suffix);
1794 if (access (temp, mode) == 0)
1796 if (pl->used_flag_ptr != 0)
1797 *pl->used_flag_ptr = 1;
1802 /* Now try just the name. */
1803 strcpy (temp, pl->prefix);
1804 strcat (temp, machine_suffix);
1805 strcat (temp, name);
1806 if (access (temp, mode) == 0)
1808 if (pl->used_flag_ptr != 0)
1809 *pl->used_flag_ptr = 1;
1814 /* Certain prefixes are tried with just the machine type,
1815 not the version. This is used for finding as, ld, etc. */
1816 if (just_machine_suffix && pl->require_machine_suffix == 2)
1818 /* Some systems have a suffix for executable files.
1819 So try appending that first. */
1820 if (file_suffix[0] != 0)
1822 strcpy (temp, pl->prefix);
1823 strcat (temp, just_machine_suffix);
1824 strcat (temp, name);
1825 strcat (temp, file_suffix);
1826 if (access (temp, mode) == 0)
1828 if (pl->used_flag_ptr != 0)
1829 *pl->used_flag_ptr = 1;
1834 strcpy (temp, pl->prefix);
1835 strcat (temp, just_machine_suffix);
1836 strcat (temp, name);
1837 if (access (temp, mode) == 0)
1839 if (pl->used_flag_ptr != 0)
1840 *pl->used_flag_ptr = 1;
1845 /* Certain prefixes can't be used without the machine suffix
1846 when the machine or version is explicitly specified. */
1847 if (!pl->require_machine_suffix)
1849 /* Some systems have a suffix for executable files.
1850 So try appending that first. */
1851 if (file_suffix[0] != 0)
1853 strcpy (temp, pl->prefix);
1854 strcat (temp, name);
1855 strcat (temp, file_suffix);
1856 if (access (temp, mode) == 0)
1858 if (pl->used_flag_ptr != 0)
1859 *pl->used_flag_ptr = 1;
1864 strcpy (temp, pl->prefix);
1865 strcat (temp, name);
1866 if (access (temp, mode) == 0)
1868 if (pl->used_flag_ptr != 0)
1869 *pl->used_flag_ptr = 1;
1879 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1880 at the start of the list, otherwise it goes at the end.
1882 If WARN is nonzero, we will warn if no file is found
1883 through this prefix. WARN should point to an int
1884 which will be set to 1 if this entry is used.
1886 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1887 the complete value of machine_suffix.
1888 2 means try both machine_suffix and just_machine_suffix. */
1891 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1892 struct path_prefix *pprefix;
1895 int require_machine_suffix;
1898 struct prefix_list *pl, **prev;
1901 if (!first && pprefix->plist)
1903 for (pl = pprefix->plist; pl->next; pl = pl->next)
1908 prev = &pprefix->plist;
1910 /* Keep track of the longest prefix */
1912 len = strlen (prefix);
1913 if (len > pprefix->max_len)
1914 pprefix->max_len = len;
1916 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1917 pl->prefix = save_string (prefix, len);
1918 pl->require_machine_suffix = require_machine_suffix;
1919 pl->used_flag_ptr = warn;
1926 pl->next = (struct prefix_list *) 0;
1930 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1933 unused_prefix_warnings (pprefix)
1934 struct path_prefix *pprefix;
1936 struct prefix_list *pl = pprefix->plist;
1940 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1942 if (pl->require_machine_suffix && machine_suffix)
1943 error ("file path prefix `%s%s' never used", pl->prefix,
1946 error ("file path prefix `%s' never used", pl->prefix);
1948 /* Prevent duplicate warnings. */
1949 *pl->used_flag_ptr = 1;
1955 /* Get rid of all prefixes built up so far in *PLISTP. */
1958 free_path_prefix (pprefix)
1959 struct path_prefix *pprefix;
1961 struct prefix_list *pl = pprefix->plist;
1962 struct prefix_list *temp;
1968 free (temp->prefix);
1969 free ((char *) temp);
1971 pprefix->plist = (struct prefix_list *) 0;
1974 /* stdin file number. */
1975 #define STDIN_FILE_NO 0
1977 /* stdout file number. */
1978 #define STDOUT_FILE_NO 1
1980 /* value of `pipe': port index for reading. */
1983 /* value of `pipe': port index for writing. */
1984 #define WRITE_PORT 1
1986 /* Pipe waiting from last process, to be used as input for the next one.
1987 Value is STDIN_FILE_NO if no pipe is waiting
1988 (i.e. the next command is the first of a group). */
1990 static int last_pipe_input;
1992 /* Fork one piped subcommand. FUNC is the system call to use
1993 (either execv or execvp). ARGV is the arg vector to use.
1994 NOT_LAST is nonzero if this is not the last subcommand
1995 (i.e. its output should be piped to the next one.) */
1999 #include <process.h>
2001 pexecute (search_flag, program, argv, not_last)
2008 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
2012 int i, el = search_flag ? 0 : 4;
2014 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
2015 rf = scmd + strlen(program) + 2 + el;
2016 sprintf (scmd, "%s%s @%s.gp", program,
2017 (search_flag ? "" : ".exe"), temp_filename);
2018 argfile = fopen (rf, "w");
2020 pfatal_with_name (rf);
2022 for (i=1; argv[i]; i++)
2025 for (cp = argv[i]; *cp; cp++)
2027 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
2028 fputc ('\\', argfile);
2029 fputc (*cp, argfile);
2031 fputc ('\n', argfile);
2042 perror_exec (program);
2043 return MIN_FATAL_STATUS << 8;
2050 #if !defined(__MSDOS__) && !defined(OS2) && !defined(_WIN32)
2053 pexecute (search_flag, program, argv, not_last)
2059 int (*func)() = (search_flag ? execv : execvp);
2062 int input_desc = last_pipe_input;
2063 int output_desc = STDOUT_FILE_NO;
2064 int retries, sleep_interval;
2066 /* If this isn't the last process, make a pipe for its output,
2067 and record it as waiting to be the input to the next process. */
2071 if (pipe (pdes) < 0)
2072 pfatal_with_name ("pipe");
2073 output_desc = pdes[WRITE_PORT];
2074 last_pipe_input = pdes[READ_PORT];
2077 last_pipe_input = STDIN_FILE_NO;
2079 /* Fork a subprocess; wait and retry if it fails. */
2081 for (retries = 0; retries < 4; retries++)
2086 sleep (sleep_interval);
2087 sleep_interval *= 2;
2094 pfatal_with_name ("fork");
2096 pfatal_with_name ("vfork");
2102 /* Move the input and output pipes into place, if nec. */
2103 if (input_desc != STDIN_FILE_NO)
2105 close (STDIN_FILE_NO);
2109 if (output_desc != STDOUT_FILE_NO)
2111 close (STDOUT_FILE_NO);
2113 close (output_desc);
2116 /* Close the parent's descs that aren't wanted here. */
2117 if (last_pipe_input != STDIN_FILE_NO)
2118 close (last_pipe_input);
2120 /* Exec the program. */
2121 (*func) (program, argv);
2122 perror_exec (program);
2128 /* In the parent, after forking.
2129 Close the descriptors that we made for this child. */
2130 if (input_desc != STDIN_FILE_NO)
2132 if (output_desc != STDOUT_FILE_NO)
2133 close (output_desc);
2135 /* Return child's process number. */
2140 #endif /* not __MSDOS__ and not OS2 and not _WIN32 */
2145 pexecute (search_flag, program, argv, not_last)
2151 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2158 pexecute (search_flag, program, argv, not_last)
2164 return (search_flag ? __spawnv : __spawnvp) (1, program, argv);
2169 /* Execute the command specified by the arguments on the current line of spec.
2170 When using pipes, this includes several piped-together commands
2171 with `|' between them.
2173 Return 0 if successful, -1 if failed. */
2179 int n_commands; /* # of command. */
2183 char *prog; /* program name. */
2184 char **argv; /* vector of args. */
2185 int pid; /* pid of process for this command. */
2188 struct command *commands; /* each command buffer with above info. */
2190 /* Count # of piped commands. */
2191 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2192 if (strcmp (argbuf[i], "|") == 0)
2195 /* Get storage for each command. */
2197 = (struct command *) alloca (n_commands * sizeof (struct command));
2199 /* Split argbuf into its separate piped processes,
2200 and record info about each one.
2201 Also search for the programs that are to be run. */
2203 commands[0].prog = argbuf[0]; /* first command. */
2204 commands[0].argv = &argbuf[0];
2205 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2207 commands[0].argv[0] = string;
2209 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2210 if (strcmp (argbuf[i], "|") == 0)
2211 { /* each command. */
2213 fatal ("-pipe not supported under MS-DOS");
2215 argbuf[i] = 0; /* termination of command args. */
2216 commands[n_commands].prog = argbuf[i + 1];
2217 commands[n_commands].argv = &argbuf[i + 1];
2218 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2220 commands[n_commands].argv[0] = string;
2224 argbuf[argbuf_index] = 0;
2226 /* If -v, print what we are about to do, and maybe query. */
2230 /* Print each piped command as a separate line. */
2231 for (i = 0; i < n_commands ; i++)
2235 for (j = commands[i].argv; *j; j++)
2236 fprintf (stderr, " %s", *j);
2238 /* Print a pipe symbol after all but the last command. */
2239 if (i + 1 != n_commands)
2240 fprintf (stderr, " |");
2241 fprintf (stderr, "\n");
2245 fprintf (stderr, "\nGo ahead? (y or n) ");
2249 while (getchar () != '\n') ;
2250 if (i != 'y' && i != 'Y')
2255 /* Run each piped subprocess. */
2257 last_pipe_input = STDIN_FILE_NO;
2258 for (i = 0; i < n_commands; i++)
2260 char *string = commands[i].argv[0];
2262 commands[i].pid = pexecute (string != commands[i].prog,
2263 string, commands[i].argv,
2264 i + 1 < n_commands);
2266 if (string != commands[i].prog)
2272 /* Wait for all the subprocesses to finish.
2273 We don't care what order they finish in;
2274 we know that N_COMMANDS waits will get them all.
2275 Ignore subprocesses that we don't know about,
2276 since they can be spawned by the process that exec'ed us. */
2281 for (i = 0; i < n_commands; )
2288 status = pid = commands[i].pid;
2291 pid = cwait (&status, commands[i].pid, WAIT_CHILD);
2293 pid = wait (&status);
2299 for (j = 0; j < n_commands; j++)
2300 if (commands[j].pid == pid)
2305 if (WIFSIGNALED (status))
2307 fatal ("Internal compiler error: program %s got fatal signal %d",
2308 commands[j].prog, WTERMSIG (status));
2312 else if (WIFEXITED (status)
2313 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2323 /* Find all the switches given to us
2324 and make a vector describing them.
2325 The elements of the vector are strings, one per switch given.
2326 If a switch uses following arguments, then the `part1' field
2327 is the switch itself and the `args' field
2328 is a null-terminated vector containing the following arguments.
2329 The `live_cond' field is 1 if the switch is true in a conditional spec,
2330 -1 if false (overridden by a later switch), and is initialized to zero.
2331 The `valid' field is nonzero if any spec has looked at this switch;
2332 if it remains zero at the end of the run, it must be meaningless. */
2342 static struct switchstr *switches;
2344 static int n_switches;
2352 /* Also a vector of input files specified. */
2354 static struct infile *infiles;
2356 static int n_infiles;
2358 /* And a vector of corresponding output files is made up later. */
2360 static char **outfiles;
2362 /* Used to track if none of the -B paths are used. */
2365 /* Used to track if standard path isn't used and -b or -V is specified. */
2366 static int warn_std;
2368 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2369 static int *warn_std_ptr = 0;
2371 /* Create the vector `switches' and its contents.
2372 Store its length in `n_switches'. */
2375 process_command (argc, argv)
2381 char *spec_lang = 0;
2382 int last_language_n_infiles;
2385 int lang_n_infiles = 0;
2387 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2392 /* Figure compiler version from version string. */
2394 compiler_version = save_string (version_string, strlen (version_string));
2395 for (temp = compiler_version; *temp; ++temp)
2404 /* Set up the default search paths. */
2406 if (gcc_exec_prefix)
2408 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2409 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2412 /* COMPILER_PATH and LIBRARY_PATH have values
2413 that are lists of directory names with colons. */
2415 temp = getenv ("COMPILER_PATH");
2418 char *startp, *endp;
2419 char *nstore = (char *) alloca (strlen (temp) + 3);
2421 startp = endp = temp;
2424 if (*endp == PATH_SEPARATOR || *endp == 0)
2426 strncpy (nstore, startp, endp-startp);
2428 strcpy (nstore, concat (".", dir_separator_str));
2429 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2431 nstore[endp-startp] = DIR_SEPARATOR;
2432 nstore[endp-startp+1] = 0;
2435 nstore[endp-startp] = 0;
2436 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2439 endp = startp = endp + 1;
2446 temp = getenv ("LIBRARY_PATH");
2447 if (temp && ! cross_compile)
2449 char *startp, *endp;
2450 char *nstore = (char *) alloca (strlen (temp) + 3);
2452 startp = endp = temp;
2455 if (*endp == PATH_SEPARATOR || *endp == 0)
2457 strncpy (nstore, startp, endp-startp);
2459 strcpy (nstore, concat (".", dir_separator_str));
2460 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2462 nstore[endp-startp] = DIR_SEPARATOR;
2463 nstore[endp-startp+1] = 0;
2466 nstore[endp-startp] = 0;
2467 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2470 endp = startp = endp + 1;
2477 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2478 temp = getenv ("LPATH");
2479 if (temp && ! cross_compile)
2481 char *startp, *endp;
2482 char *nstore = (char *) alloca (strlen (temp) + 3);
2484 startp = endp = temp;
2487 if (*endp == PATH_SEPARATOR || *endp == 0)
2489 strncpy (nstore, startp, endp-startp);
2491 strcpy (nstore, concat (".", dir_separator_str));
2492 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2494 nstore[endp-startp] = DIR_SEPARATOR;
2495 nstore[endp-startp+1] = 0;
2498 nstore[endp-startp] = 0;
2499 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2502 endp = startp = endp + 1;
2509 /* Convert new-style -- options to old-style. */
2510 translate_options (&argc, &argv);
2512 /* Scan argv twice. Here, the first time, just count how many switches
2513 there will be in their vector, and how many input files in theirs.
2514 Here we also parse the switches that cc itself uses (e.g. -v). */
2516 for (i = 1; i < argc; i++)
2518 if (! strcmp (argv[i], "-dumpspecs"))
2520 printf ("*asm:\n%s\n\n", asm_spec);
2521 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2522 printf ("*cpp:\n%s\n\n", cpp_spec);
2523 printf ("*cc1:\n%s\n\n", cc1_spec);
2524 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2525 printf ("*endfile:\n%s\n\n", endfile_spec);
2526 printf ("*link:\n%s\n\n", link_spec);
2527 printf ("*lib:\n%s\n\n", lib_spec);
2528 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2529 printf ("*startfile:\n%s\n\n", startfile_spec);
2530 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2531 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2532 printf ("*predefines:\n%s\n\n", cpp_predefines);
2533 printf ("*cross_compile:\n%d\n\n", cross_compile);
2534 printf ("*multilib:\n%s\n\n", multilib_select);
2539 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2540 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2541 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2546 else if (! strcmp (argv[i], "-dumpversion"))
2548 printf ("%s\n", version_string);
2551 else if (! strcmp (argv[i], "-dumpmachine"))
2553 printf ("%s\n", spec_machine);
2556 else if (! strcmp (argv[i], "-print-search-dirs"))
2557 print_search_dirs = 1;
2558 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2559 print_file_name = "libgcc.a";
2560 else if (! strncmp (argv[i], "-print-file-name=", 17))
2561 print_file_name = argv[i] + 17;
2562 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2563 print_prog_name = argv[i] + 17;
2564 else if (! strcmp (argv[i], "-print-multi-lib"))
2565 print_multi_lib = 1;
2566 else if (! strcmp (argv[i], "-print-multi-directory"))
2567 print_multi_directory = 1;
2568 else if (! strncmp (argv[i], "-Wa,", 4))
2571 /* Pass the rest of this option to the assembler. */
2573 n_assembler_options++;
2574 if (!assembler_options)
2576 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2579 = (char **) xrealloc (assembler_options,
2580 n_assembler_options * sizeof (char **));
2582 /* Split the argument at commas. */
2584 for (j = 4; argv[i][j]; j++)
2585 if (argv[i][j] == ',')
2587 assembler_options[n_assembler_options - 1]
2588 = save_string (argv[i] + prev, j - prev);
2589 n_assembler_options++;
2591 = (char **) xrealloc (assembler_options,
2592 n_assembler_options * sizeof (char **));
2595 /* Record the part after the last comma. */
2596 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2598 else if (! strncmp (argv[i], "-Wp,", 4))
2601 /* Pass the rest of this option to the preprocessor. */
2603 n_preprocessor_options++;
2604 if (!preprocessor_options)
2605 preprocessor_options
2606 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2608 preprocessor_options
2609 = (char **) xrealloc (preprocessor_options,
2610 n_preprocessor_options * sizeof (char **));
2612 /* Split the argument at commas. */
2614 for (j = 4; argv[i][j]; j++)
2615 if (argv[i][j] == ',')
2617 preprocessor_options[n_preprocessor_options - 1]
2618 = save_string (argv[i] + prev, j - prev);
2619 n_preprocessor_options++;
2620 preprocessor_options
2621 = (char **) xrealloc (preprocessor_options,
2622 n_preprocessor_options * sizeof (char **));
2625 /* Record the part after the last comma. */
2626 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2628 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2629 /* The +e options to the C++ front-end. */
2631 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2634 /* Split the argument at commas. */
2635 for (j = 3; argv[i][j]; j++)
2636 n_infiles += (argv[i][j] == ',');
2638 else if (strcmp (argv[i], "-Xlinker") == 0)
2641 fatal ("argument to `-Xlinker' is missing");
2646 else if (strncmp (argv[i], "-l", 2) == 0)
2648 else if (strcmp (argv[i], "-save-temps") == 0)
2650 save_temps_flag = 1;
2653 else if (argv[i][0] == '-' && argv[i][1] != 0)
2655 register char *p = &argv[i][1];
2656 register int c = *p;
2661 if (p[1] == 0 && i + 1 == argc)
2662 fatal ("argument to `-b' is missing");
2664 spec_machine = argv[++i];
2666 spec_machine = p + 1;
2668 warn_std_ptr = &warn_std;
2673 int *temp = (int *) xmalloc (sizeof (int));
2675 if (p[1] == 0 && i + 1 == argc)
2676 fatal ("argument to `-B' is missing");
2681 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2682 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2683 add_prefix (&include_prefixes, concat (value, "include"),
2686 /* As a kludge, if the arg is "[foo/]stageN/", just add
2687 "[foo/]include" to the include prefix. */
2689 int len = strlen (value);
2692 && (value[len - 8] == '/'
2693 || value[len - 8] == DIR_SEPARATOR)))
2694 && strncmp (value + len - 7, "stage", 5) == 0
2695 && isdigit (value[len - 2])
2696 && (value[len - 1] == '/'
2697 || value[len - 1] == DIR_SEPARATOR))
2700 add_prefix (&include_prefixes, "include",
2704 char *string = xmalloc (len + 1);
2705 strncpy (string, value, len-7);
2706 strcat (string, "include");
2707 add_prefix (&include_prefixes, string,
2715 case 'v': /* Print our subcommands and print versions. */
2717 /* If they do anything other than exactly `-v', don't set
2718 verbose_flag; rather, continue on to give the error. */
2725 if (p[1] == 0 && i + 1 == argc)
2726 fatal ("argument to `-V' is missing");
2728 spec_version = argv[++i];
2730 spec_version = p + 1;
2731 compiler_version = spec_version;
2732 warn_std_ptr = &warn_std;
2752 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2753 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2754 else if (WORD_SWITCH_TAKES_ARG (p))
2755 i += WORD_SWITCH_TAKES_ARG (p);
2765 if (have_c && have_o && lang_n_infiles > 1)
2766 fatal ("cannot specify -o with -c and multiple compilations");
2768 /* Set up the search paths before we go looking for config files. */
2770 /* These come before the md prefixes so that we will find gcc's subcommands
2771 (such as cpp) rather than those of the host system. */
2772 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2773 as well as trying the machine and the version. */
2775 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2776 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2779 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2780 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2782 tooldir_prefix = concat3 (tooldir_base_prefix, spec_machine,
2785 /* If tooldir is relative, base it on exec_prefixes. A relative
2786 tooldir lets us move the installed tree as a unit.
2788 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2789 directories, so that we can search both the user specified directory
2790 and the standard place. */
2792 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2794 if (gcc_exec_prefix)
2796 char *gcc_exec_tooldir_prefix
2797 = concat6 (gcc_exec_prefix, spec_machine, dir_separator_str,
2798 spec_version, dir_separator_str, tooldir_prefix);
2800 add_prefix (&exec_prefixes,
2801 concat3 (gcc_exec_tooldir_prefix, "bin",
2804 add_prefix (&startfile_prefixes,
2805 concat3 (gcc_exec_tooldir_prefix, "lib",
2810 tooldir_prefix = concat6 (standard_exec_prefix, spec_machine,
2811 dir_separator_str, spec_version,
2812 dir_separator_str, tooldir_prefix);
2815 add_prefix (&exec_prefixes,
2816 concat3 (tooldir_prefix, "bin", dir_separator_str),
2818 add_prefix (&startfile_prefixes,
2819 concat3 (tooldir_prefix, "lib", dir_separator_str),
2822 /* More prefixes are enabled in main, after we read the specs file
2823 and determine whether this is cross-compilation or not. */
2826 /* Then create the space for the vectors and scan again. */
2828 switches = ((struct switchstr *)
2829 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2830 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2833 last_language_n_infiles = -1;
2835 /* This, time, copy the text of each switch and store a pointer
2836 to the copy in the vector of switches.
2837 Store all the infiles in their vector. */
2839 for (i = 1; i < argc; i++)
2841 /* Just skip the switches that were handled by the preceding loop. */
2842 if (! strncmp (argv[i], "-Wa,", 4))
2844 else if (! strncmp (argv[i], "-Wp,", 4))
2846 else if (! strcmp (argv[i], "-print-search-dirs"))
2848 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2850 else if (! strncmp (argv[i], "-print-file-name=", 17))
2852 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2854 else if (! strcmp (argv[i], "-print-multi-lib"))
2856 else if (! strcmp (argv[i], "-print-multi-directory"))
2858 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2860 /* Compensate for the +e options to the C++ front-end;
2861 they're there simply for cfront call-compatibility. We do
2862 some magic in default_compilers to pass them down properly.
2863 Note we deliberately start at the `+' here, to avoid passing
2864 -e0 or -e1 down into the linker. */
2865 switches[n_switches].part1 = &argv[i][0];
2866 switches[n_switches].args = 0;
2867 switches[n_switches].live_cond = 0;
2868 switches[n_switches].valid = 0;
2871 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2874 /* Split the argument at commas. */
2876 for (j = 4; argv[i][j]; j++)
2877 if (argv[i][j] == ',')
2879 infiles[n_infiles].language = 0;
2880 infiles[n_infiles++].name
2881 = save_string (argv[i] + prev, j - prev);
2884 /* Record the part after the last comma. */
2885 infiles[n_infiles].language = 0;
2886 infiles[n_infiles++].name = argv[i] + prev;
2888 else if (strcmp (argv[i], "-Xlinker") == 0)
2890 infiles[n_infiles].language = 0;
2891 infiles[n_infiles++].name = argv[++i];
2893 else if (strncmp (argv[i], "-l", 2) == 0)
2895 infiles[n_infiles].language = 0;
2896 infiles[n_infiles++].name = argv[i];
2898 else if (argv[i][0] == '-' && argv[i][1] != 0)
2900 register char *p = &argv[i][1];
2901 register int c = *p;
2903 if (c == 'B' || c == 'b' || c == 'V')
2905 /* Skip a separate arg, if any. */
2912 if (p[1] == 0 && i + 1 == argc)
2913 fatal ("argument to `-x' is missing");
2915 spec_lang = argv[++i];
2918 if (! strcmp (spec_lang, "none"))
2919 /* Suppress the warning if -xnone comes after the last input
2920 file, because alternate command interfaces like g++ might
2921 find it useful to place -xnone after each input file. */
2924 last_language_n_infiles = n_infiles;
2927 switches[n_switches].part1 = p;
2928 /* Deal with option arguments in separate argv elements. */
2929 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2930 || WORD_SWITCH_TAKES_ARG (p))
2933 int n_args = WORD_SWITCH_TAKES_ARG (p);
2937 /* Count only the option arguments in separate argv elements. */
2938 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2940 if (i + n_args >= argc)
2941 fatal ("argument to `-%s' is missing", p);
2942 switches[n_switches].args
2943 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2945 switches[n_switches].args[j++] = argv[++i];
2946 /* Null-terminate the vector. */
2947 switches[n_switches].args[j] = 0;
2949 else if (index (switches_need_spaces, c))
2951 /* On some systems, ld cannot handle some options without
2952 a space. So split the option from its argument. */
2953 char *part1 = (char *) xmalloc (2);
2957 switches[n_switches].part1 = part1;
2958 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2959 switches[n_switches].args[0] = xmalloc (strlen (p));
2960 strcpy (switches[n_switches].args[0], &p[1]);
2961 switches[n_switches].args[1] = 0;
2964 switches[n_switches].args = 0;
2966 switches[n_switches].live_cond = 0;
2967 switches[n_switches].valid = 0;
2968 /* This is always valid, since gcc.c itself understands it. */
2969 if (!strcmp (p, "save-temps"))
2970 switches[n_switches].valid = 1;
2975 #ifdef HAVE_OBJECT_SUFFIX
2976 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2977 if (strlen (argv[i]) > 2
2978 && argv[i][strlen (argv[i]) - 2] == '.'
2979 && argv[i][strlen (argv[i]) - 1] == 'o')
2983 for (j = 0; j < strlen (argv[i]) - 2; j++)
2984 obstack_1grow (&obstack, argv[i][j]);
2986 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2987 obstack_1grow (&obstack, 0);
2988 argv[i] = obstack_finish (&obstack);
2992 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2994 perror_with_name (argv[i]);
2999 infiles[n_infiles].language = spec_lang;
3000 infiles[n_infiles++].name = argv[i];
3005 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3006 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3008 switches[n_switches].part1 = 0;
3009 infiles[n_infiles].name = 0;
3012 /* Process a spec string, accumulating and running commands. */
3014 /* These variables describe the input file name.
3015 input_file_number is the index on outfiles of this file,
3016 so that the output file name can be stored for later use by %o.
3017 input_basename is the start of the part of the input file
3018 sans all directory names, and basename_length is the number
3019 of characters starting there excluding the suffix .c or whatever. */
3021 static char *input_filename;
3022 static int input_file_number;
3023 static int input_filename_length;
3024 static int basename_length;
3025 static char *input_basename;
3026 static char *input_suffix;
3028 /* These are variables used within do_spec and do_spec_1. */
3030 /* Nonzero if an arg has been started and not yet terminated
3031 (with space, tab or newline). */
3032 static int arg_going;
3034 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3035 is a temporary file name. */
3036 static int delete_this_arg;
3038 /* Nonzero means %w has been seen; the next arg to be terminated
3039 is the output file name of this compilation. */
3040 static int this_is_output_file;
3042 /* Nonzero means %s has been seen; the next arg to be terminated
3043 is the name of a library file and we should try the standard
3044 search dirs for it. */
3045 static int this_is_library_file;
3047 /* Nonzero means that the input of this command is coming from a pipe. */
3048 static int input_from_pipe;
3050 /* Process the spec SPEC and run the commands specified therein.
3051 Returns 0 if the spec is successfully processed; -1 if failed. */
3061 delete_this_arg = 0;
3062 this_is_output_file = 0;
3063 this_is_library_file = 0;
3064 input_from_pipe = 0;
3066 value = do_spec_1 (spec, 0, NULL_PTR);
3068 /* Force out any unfinished command.
3069 If -pipe, this forces out the last command if it ended in `|'. */
3072 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3075 if (argbuf_index > 0)
3082 /* Process the sub-spec SPEC as a portion of a larger spec.
3083 This is like processing a whole spec except that we do
3084 not initialize at the beginning and we do not supply a
3085 newline by default at the end.
3086 INSWITCH nonzero means don't process %-sequences in SPEC;
3087 in this case, % is treated as an ordinary character.
3088 This is used while substituting switches.
3089 INSWITCH nonzero also causes SPC not to terminate an argument.
3091 Value is zero unless a line was finished
3092 and the command on that line reported an error. */
3095 do_spec_1 (spec, inswitch, soft_matched_part)
3098 char *soft_matched_part;
3100 register char *p = spec;
3107 /* If substituting a switch, treat all chars like letters.
3108 Otherwise, NL, SPC, TAB and % are special. */
3109 switch (inswitch ? 'a' : c)
3112 /* End of line: finish any pending argument,
3113 then run the pending command if one has been started. */
3116 obstack_1grow (&obstack, 0);
3117 string = obstack_finish (&obstack);
3118 if (this_is_library_file)
3119 string = find_file (string);
3120 store_arg (string, delete_this_arg, this_is_output_file);
3121 if (this_is_output_file)
3122 outfiles[input_file_number] = string;
3126 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3128 for (i = 0; i < n_switches; i++)
3129 if (!strcmp (switches[i].part1, "pipe"))
3132 /* A `|' before the newline means use a pipe here,
3133 but only if -pipe was specified.
3134 Otherwise, execute now and don't pass the `|' as an arg. */
3137 input_from_pipe = 1;
3138 switches[i].valid = 1;
3145 if (argbuf_index > 0)
3151 /* Reinitialize for a new command, and for a new argument. */
3154 delete_this_arg = 0;
3155 this_is_output_file = 0;
3156 this_is_library_file = 0;
3157 input_from_pipe = 0;
3161 /* End any pending argument. */
3164 obstack_1grow (&obstack, 0);
3165 string = obstack_finish (&obstack);
3166 if (this_is_library_file)
3167 string = find_file (string);
3168 store_arg (string, delete_this_arg, this_is_output_file);
3169 if (this_is_output_file)
3170 outfiles[input_file_number] = string;
3174 obstack_1grow (&obstack, c);
3180 /* Space or tab ends an argument if one is pending. */
3183 obstack_1grow (&obstack, 0);
3184 string = obstack_finish (&obstack);
3185 if (this_is_library_file)
3186 string = find_file (string);
3187 store_arg (string, delete_this_arg, this_is_output_file);
3188 if (this_is_output_file)
3189 outfiles[input_file_number] = string;
3191 /* Reinitialize for a new argument. */
3193 delete_this_arg = 0;
3194 this_is_output_file = 0;
3195 this_is_library_file = 0;
3202 fatal ("Invalid specification! Bug in cc.");
3205 obstack_grow (&obstack, input_basename, basename_length);
3210 delete_this_arg = 2;
3213 /* Dump out the directories specified with LIBRARY_PATH,
3214 followed by the absolute directories
3215 that we search for startfiles. */
3218 struct prefix_list *pl = startfile_prefixes.plist;
3220 char *buffer = (char *) xmalloc (bufsize);
3223 for (; pl; pl = pl->next)
3225 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3226 /* Used on systems which record the specified -L dirs
3227 and use them to search for dynamic linking. */
3228 /* Relative directories always come from -B,
3229 and it is better not to use them for searching
3230 at run time. In particular, stage1 loses */
3231 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3234 /* Try subdirectory if there is one. */
3235 if (multilib_dir != NULL)
3239 if (strlen (pl->prefix) + strlen (machine_suffix)
3241 bufsize = (strlen (pl->prefix)
3242 + strlen (machine_suffix)) * 2 + 1;
3243 buffer = (char *) xrealloc (buffer, bufsize);
3244 strcpy (buffer, pl->prefix);
3245 strcat (buffer, machine_suffix);
3246 if (is_directory (buffer, multilib_dir, 1))
3248 do_spec_1 ("-L", 0, NULL_PTR);
3249 #ifdef SPACE_AFTER_L_OPTION
3250 do_spec_1 (" ", 0, NULL_PTR);
3252 do_spec_1 (buffer, 1, NULL_PTR);
3253 do_spec_1 (multilib_dir, 1, NULL_PTR);
3254 /* Make this a separate argument. */
3255 do_spec_1 (" ", 0, NULL_PTR);
3258 if (!pl->require_machine_suffix)
3260 if (is_directory (pl->prefix, multilib_dir, 1))
3262 do_spec_1 ("-L", 0, NULL_PTR);
3263 #ifdef SPACE_AFTER_L_OPTION
3264 do_spec_1 (" ", 0, NULL_PTR);
3266 do_spec_1 (pl->prefix, 1, NULL_PTR);
3267 do_spec_1 (multilib_dir, 1, NULL_PTR);
3268 /* Make this a separate argument. */
3269 do_spec_1 (" ", 0, NULL_PTR);
3275 if (is_directory (pl->prefix, machine_suffix, 1))
3277 do_spec_1 ("-L", 0, NULL_PTR);
3278 #ifdef SPACE_AFTER_L_OPTION
3279 do_spec_1 (" ", 0, NULL_PTR);
3281 do_spec_1 (pl->prefix, 1, NULL_PTR);
3282 /* Remove slash from machine_suffix. */
3283 if (strlen (machine_suffix) >= bufsize)
3284 bufsize = strlen (machine_suffix) * 2 + 1;
3285 buffer = (char *) xrealloc (buffer, bufsize);
3286 strcpy (buffer, machine_suffix);
3287 idx = strlen (buffer);
3288 if (buffer[idx - 1] == '/'
3289 || buffer[idx - 1] == DIR_SEPARATOR)
3290 buffer[idx - 1] = 0;
3291 do_spec_1 (buffer, 1, NULL_PTR);
3292 /* Make this a separate argument. */
3293 do_spec_1 (" ", 0, NULL_PTR);
3296 if (!pl->require_machine_suffix)
3298 if (is_directory (pl->prefix, "", 1))
3300 do_spec_1 ("-L", 0, NULL_PTR);
3301 #ifdef SPACE_AFTER_L_OPTION
3302 do_spec_1 (" ", 0, NULL_PTR);
3304 /* Remove slash from pl->prefix. */
3305 if (strlen (pl->prefix) >= bufsize)
3306 bufsize = strlen (pl->prefix) * 2 + 1;
3307 buffer = (char *) xrealloc (buffer, bufsize);
3308 strcpy (buffer, pl->prefix);
3309 idx = strlen (buffer);
3310 if (buffer[idx - 1] == '/'
3311 || buffer[idx - 1] == DIR_SEPARATOR)
3312 buffer[idx - 1] = 0;
3313 do_spec_1 (buffer, 1, NULL_PTR);
3314 /* Make this a separate argument. */
3315 do_spec_1 (" ", 0, NULL_PTR);
3324 /* {...:%efoo} means report an error with `foo' as error message
3325 and don't execute any more commands for this file. */
3329 while (*p != 0 && *p != '\n') p++;
3330 buf = (char *) alloca (p - q + 1);
3331 strncpy (buf, q, p - q);
3341 if (save_temps_flag)
3343 obstack_grow (&obstack, input_basename, basename_length);
3344 delete_this_arg = 0;
3348 #ifdef MKTEMP_EACH_FILE
3349 /* ??? This has a problem: the total number of
3350 values mktemp can return is limited.
3351 That matters for the names of object files.
3352 In 2.4, do something about that. */
3353 struct temp_name *t;
3355 while (*p == '.' || isalpha (*p)
3356 || (p[0] == '%' && p[1] == 'O'))
3359 /* See if we already have an association of %g/%u/%U and
3361 for (t = temp_names; t; t = t->next)
3362 if (t->length == p - suffix
3363 && strncmp (t->suffix, suffix, p - suffix) == 0
3364 && t->unique == (c != 'g'))
3367 /* Make a new association if needed. %u requires one. */
3368 if (t == 0 || c == 'u')
3372 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3373 t->next = temp_names;
3376 t->length = p - suffix;
3377 t->suffix = save_string (suffix, p - suffix);
3378 t->unique = (c != 'g');
3379 choose_temp_base ();
3380 t->filename = temp_filename;
3381 t->filename_length = temp_filename_length;
3384 obstack_grow (&obstack, t->filename, t->filename_length);
3385 delete_this_arg = 1;
3387 obstack_grow (&obstack, temp_filename, temp_filename_length);
3388 if (c == 'u' || c == 'U')
3394 sprintf (buff, "%d", unique);
3395 obstack_grow (&obstack, buff, strlen (buff));
3398 delete_this_arg = 1;
3404 obstack_grow (&obstack, input_filename, input_filename_length);
3410 struct prefix_list *pl = include_prefixes.plist;
3412 if (gcc_exec_prefix)
3414 do_spec_1 ("-iprefix", 1, NULL_PTR);
3415 /* Make this a separate argument. */
3416 do_spec_1 (" ", 0, NULL_PTR);
3417 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3418 do_spec_1 (" ", 0, NULL_PTR);
3421 for (; pl; pl = pl->next)
3423 do_spec_1 ("-isystem", 1, NULL_PTR);
3424 /* Make this a separate argument. */
3425 do_spec_1 (" ", 0, NULL_PTR);
3426 do_spec_1 (pl->prefix, 1, NULL_PTR);
3427 do_spec_1 (" ", 0, NULL_PTR);
3433 for (i = 0; i < n_infiles; i++)
3434 store_arg (outfiles[i], 0, 0);
3438 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3443 this_is_library_file = 1;
3447 this_is_output_file = 1;
3452 int cur_index = argbuf_index;
3453 /* Handle the {...} following the %W. */
3456 p = handle_braces (p + 1);
3459 /* If any args were output, mark the last one for deletion
3461 if (argbuf_index != cur_index)
3462 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3466 /* %x{OPTION} records OPTION for %X to output. */
3472 /* Skip past the option value and make a copy. */
3477 string = save_string (p1 + 1, p - p1 - 2);
3479 /* See if we already recorded this option. */
3480 for (i = 0; i < n_linker_options; i++)
3481 if (! strcmp (string, linker_options[i]))
3487 /* This option is new; add it. */
3489 if (!linker_options)
3491 = (char **) xmalloc (n_linker_options * sizeof (char **));
3494 = (char **) xrealloc (linker_options,
3495 n_linker_options * sizeof (char **));
3497 linker_options[n_linker_options - 1] = string;
3501 /* Dump out the options accumulated previously using %x. */
3503 for (i = 0; i < n_linker_options; i++)
3505 do_spec_1 (linker_options[i], 1, NULL_PTR);
3506 /* Make each accumulated option a separate argument. */
3507 do_spec_1 (" ", 0, NULL_PTR);
3511 /* Dump out the options accumulated previously using -Wa,. */
3513 for (i = 0; i < n_assembler_options; i++)
3515 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3516 /* Make each accumulated option a separate argument. */
3517 do_spec_1 (" ", 0, NULL_PTR);
3521 /* Dump out the options accumulated previously using -Wp,. */
3523 for (i = 0; i < n_preprocessor_options; i++)
3525 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3526 /* Make each accumulated option a separate argument. */
3527 do_spec_1 (" ", 0, NULL_PTR);
3531 /* Here are digits and numbers that just process
3532 a certain constant string as a spec. */
3535 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3541 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3547 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3553 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3559 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3565 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3571 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3577 value = do_spec_1 (link_spec, 0, NULL_PTR);
3583 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3589 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3596 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3600 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3604 if (! strncmp (y, "-D", 2))
3605 /* Copy the whole option. */
3606 while (*y && *y != ' ' && *y != '\t')
3608 else if (*y == ' ' || *y == '\t')
3609 /* Copy whitespace to the result. */
3611 /* Don't copy other options. */
3618 value = do_spec_1 (buf, 0, NULL_PTR);
3626 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3630 /* Copy all of CPP_PREDEFINES into BUF,
3631 but put __ after every -D and at the end of each arg. */
3635 if (! strncmp (y, "-D", 2))
3643 || (*(y+1) != '_' && ! isupper (*(y+1))))
3645 /* Stick __ at front of macro name. */
3648 /* Arrange to stick __ at the end as well. */
3652 /* Copy the macro name. */
3653 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3662 /* Copy the value given, if any. */
3663 while (*y && *y != ' ' && *y != '\t')
3666 else if (*y == ' ' || *y == '\t')
3667 /* Copy whitespace to the result. */
3669 /* Don't copy -A options */
3675 /* Copy all of CPP_PREDEFINES into BUF,
3676 but put __ after every -D. */
3680 if (! strncmp (y, "-D", 2))
3685 || (*(y+1) != '_' && ! isupper (*(y+1))))
3687 /* Stick -D__ at front of macro name. */
3693 /* Copy the macro name. */
3694 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3697 /* Copy the value given, if any. */
3698 while (*y && *y != ' ' && *y != '\t')
3703 /* Do not copy this macro - we have just done it before */
3704 while (*y && *y != ' ' && *y != '\t')
3708 else if (*y == ' ' || *y == '\t')
3709 /* Copy whitespace to the result. */
3711 /* Don't copy -A options */
3717 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3721 if (! strncmp (y, "-A", 2))
3722 /* Copy the whole option. */
3723 while (*y && *y != ' ' && *y != '\t')
3725 else if (*y == ' ' || *y == '\t')
3726 /* Copy whitespace to the result. */
3728 /* Don't copy other options. */
3735 value = do_spec_1 (buf, 0, NULL_PTR);
3742 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3747 /* Here we define characters other than letters and digits. */
3750 p = handle_braces (p);
3756 obstack_1grow (&obstack, '%');
3760 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3761 do_spec_1 (" ", 0, NULL_PTR);
3764 /* Process a string found as the value of a spec given by name.
3765 This feature allows individual machine descriptions
3766 to add and use their own specs.
3767 %[...] modifies -D options the way %P does;
3768 %(...) uses the spec unmodified. */
3773 struct spec_list *sl;
3776 /* The string after the S/P is the name of a spec that is to be
3778 while (*p && *p != ')' && *p != ']')
3781 /* See if it's in the list */
3782 for (len = p - name, sl = specs; sl; sl = sl->next)
3783 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3793 value = do_spec_1 (name, 0, NULL_PTR);
3799 char *x = (char *) alloca (strlen (name) * 2 + 1);
3803 /* Copy all of NAME into BUF, but put __ after
3804 every -D and at the end of each arg, */
3807 if (! strncmp (y, "-D", 2))
3815 else if (*y == ' ' || *y == 0)
3829 value = do_spec_1 (buf, 0, NULL_PTR);
3835 /* Discard the closing paren or bracket. */
3843 int c1 = *p++; /* Select first or second version number. */
3844 char *v = compiler_version;
3846 /* If desired, advance to second version number. */
3849 /* Set V after the first period. */
3850 while (*v != 0 && *v != ' ' && *v != '.')
3855 /* Set Q at the next period or at the end. */
3857 while (*q != 0 && *q != ' ' && *q != '.')
3859 /* Empty string means zero. */
3865 /* Put that part into the command. */
3866 obstack_grow (&obstack, v, q - v);
3872 if (input_from_pipe)
3873 do_spec_1 ("-", 0, NULL_PTR);
3882 /* Backslash: treat next character as ordinary. */
3887 /* Ordinary character: put it into the current argument. */
3888 obstack_1grow (&obstack, c);
3892 return 0; /* End of string */
3895 /* Return 0 if we call do_spec_1 and that returns -1. */
3908 /* A `|' after the open-brace means,
3909 if the test fails, output a single minus sign rather than nothing.
3910 This is used in %{|!pipe:...}. */
3914 /* A `!' after the open-brace negates the condition:
3915 succeed if the specified switch is not present. */
3919 /* A `.' after the open-brace means test against the current suffix. */
3929 while (*p != ':' && *p != '}') p++;
3932 register int count = 1;
3950 int found = (input_suffix != 0
3951 && strlen (input_suffix) == p - filter
3952 && strncmp (input_suffix, filter, p - filter) == 0);
3958 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3963 else if (p[-1] == '*' && p[0] == '}')
3965 /* Substitute all matching switches as separate args. */
3968 for (i = 0; i < n_switches; i++)
3969 if (!strncmp (switches[i].part1, filter, p - filter)
3970 && check_live_switch (i, p - filter))
3975 /* Test for presence of the specified switch. */
3979 /* If name specified ends in *, as in {x*:...},
3980 check for %* and handle that case. */
3981 if (p[-1] == '*' && !negate)
3986 /* First see whether we have %*. */
3990 if (*r == '%' && r[1] == '*')
3994 /* If we do, handle that case. */
3997 /* Substitute all matching switches as separate args.
3998 But do this by substituting for %*
3999 in the text that follows the colon. */
4001 unsigned hard_match_len = p - filter - 1;
4002 char *string = save_string (p + 1, q - p - 2);
4004 for (i = 0; i < n_switches; i++)
4005 if (!strncmp (switches[i].part1, filter, hard_match_len)
4006 && check_live_switch (i, -1))
4008 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4009 /* Pass any arguments this switch has. */
4017 /* If name specified ends in *, as in {x*:...},
4018 check for presence of any switch name starting with x. */
4021 for (i = 0; i < n_switches; i++)
4023 unsigned hard_match_len = p - filter - 1;
4025 if (!strncmp (switches[i].part1, filter, hard_match_len)
4026 && check_live_switch (i, hard_match_len))
4032 /* Otherwise, check for presence of exact name specified. */
4035 for (i = 0; i < n_switches; i++)
4037 if (!strncmp (switches[i].part1, filter, p - filter)
4038 && switches[i].part1[p - filter] == 0
4039 && check_live_switch (i, -1))
4047 /* If it is as desired (present for %{s...}, absent for %{-s...})
4048 then substitute either the switch or the specified
4049 conditional text. */
4050 if (present != negate)
4058 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4064 /* Here if a %{|...} conditional fails: output a minus sign,
4065 which means "standard output" or "standard input". */
4066 do_spec_1 ("-", 0, NULL_PTR);
4073 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4074 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4075 spec, or -1 if either exact match or %* is used.
4077 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4078 whose value does not begin with "no-" is obsoleted by the same value
4079 with the "no-", similarly for a switch with the "no-" prefix. */
4082 check_live_switch (switchnum, prefix_length)
4086 char *name = switches[switchnum].part1;
4089 /* In the common case of {<at-most-one-letter>*}, a negating
4090 switch would always match, so ignore that case. We will just
4091 send the conflicting switches to the compiler phase. */
4092 if (prefix_length >= 0 && prefix_length <= 1)
4095 /* If we already processed this switch and determined if it was
4096 live or not, return our past determination. */
4097 if (switches[switchnum].live_cond != 0)
4098 return switches[switchnum].live_cond > 0;
4100 /* Now search for duplicate in a manner that depends on the name. */
4104 for (i = switchnum + 1; i < n_switches; i++)
4105 if (switches[i].part1[0] == 'O')
4107 switches[switchnum].valid = 1;
4108 switches[switchnum].live_cond = -1;
4113 case 'W': case 'f': case 'm':
4114 if (! strncmp (name + 1, "no-", 3))
4116 /* We have Xno-YYY, search for XYYY. */
4117 for (i = switchnum + 1; i < n_switches; i++)
4118 if (switches[i].part1[0] == name[0]
4119 && ! strcmp (&switches[i].part1[1], &name[4]))
4121 switches[switchnum].valid = 1;
4122 switches[switchnum].live_cond = -1;
4128 /* We have XYYY, search for Xno-YYY. */
4129 for (i = switchnum + 1; i < n_switches; i++)
4130 if (switches[i].part1[0] == name[0]
4131 && switches[i].part1[1] == 'n'
4132 && switches[i].part1[2] == 'o'
4133 && switches[i].part1[3] == '-'
4134 && !strcmp (&switches[i].part1[4], &name[1]))
4136 switches[switchnum].valid = 1;
4137 switches[switchnum].live_cond = -1;
4144 /* Otherwise the switch is live. */
4145 switches[switchnum].live_cond = 1;
4149 /* Pass a switch to the current accumulating command
4150 in the same form that we received it.
4151 SWITCHNUM identifies the switch; it is an index into
4152 the vector of switches gcc received, which is `switches'.
4153 This cannot fail since it never finishes a command line.
4155 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4158 give_switch (switchnum, omit_first_word)
4160 int omit_first_word;
4162 if (!omit_first_word)
4164 do_spec_1 ("-", 0, NULL_PTR);
4165 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4167 do_spec_1 (" ", 0, NULL_PTR);
4168 if (switches[switchnum].args != 0)
4171 for (p = switches[switchnum].args; *p; p++)
4173 do_spec_1 (*p, 1, NULL_PTR);
4174 do_spec_1 (" ", 0, NULL_PTR);
4177 switches[switchnum].valid = 1;
4180 /* Search for a file named NAME trying various prefixes including the
4181 user's -B prefix and some standard ones.
4182 Return the absolute file name found. If nothing is found, return NAME. */
4190 /* Try multilib_dir if it is defined. */
4191 if (multilib_dir != NULL)
4195 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4196 strcpy (try, multilib_dir);
4197 strcat (try, dir_separator_str);
4200 newname = find_a_file (&startfile_prefixes, try, R_OK);
4202 /* If we don't find it in the multi library dir, then fall
4203 through and look for it in the normal places. */
4204 if (newname != NULL)
4208 newname = find_a_file (&startfile_prefixes, name, R_OK);
4209 return newname ? newname : name;
4212 /* Determine whether a directory exists. If LINKER, return 0 for
4213 certain fixed names not needed by the linker. If not LINKER, it is
4214 only important to return 0 if the host machine has a small ARG_MAX
4218 is_directory (path1, path2, linker)
4223 int len1 = strlen (path1);
4224 int len2 = strlen (path2);
4225 char *path = (char *) alloca (3 + len1 + len2);
4229 #ifndef SMALL_ARG_MAX
4234 /* Construct the path from the two parts. Ensure the string ends with "/.".
4235 The resulting path will be a directory even if the given path is a
4237 bcopy (path1, path, len1);
4238 bcopy (path2, path + len1, len2);
4239 cp = path + len1 + len2;
4240 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4241 *cp++ = DIR_SEPARATOR;
4245 /* Exclude directories that the linker is known to search. */
4248 && strcmp (path, concat4 (dir_separator_str, "lib",
4249 dir_separator_str, ".")) == 0)
4251 && strcmp (path, concat6 (dir_separator_str, "usr",
4252 dir_separator_str, "lib",
4253 dir_separator_str, ".")) == 0)))
4256 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4259 /* On fatal signals, delete all the temporary files. */
4262 fatal_error (signum)
4265 signal (signum, SIG_DFL);
4266 delete_failure_queue ();
4267 delete_temp_files ();
4268 /* Get the same signal again, this time not handled,
4269 so its normal effect occurs. */
4270 kill (getpid (), signum);
4281 int linker_was_run = 0;
4282 char *explicit_link_files;
4286 p = argv[0] + strlen (argv[0]);
4287 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4290 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4291 signal (SIGINT, fatal_error);
4293 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4294 signal (SIGHUP, fatal_error);
4296 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4297 signal (SIGTERM, fatal_error);
4299 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4300 signal (SIGPIPE, fatal_error);
4304 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4306 obstack_init (&obstack);
4308 /* Set up to remember the pathname of gcc and any options
4309 needed for collect. We use argv[0] instead of programname because
4310 we need the complete pathname. */
4311 obstack_init (&collect_obstack);
4312 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4313 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4314 putenv (obstack_finish (&collect_obstack));
4316 #ifdef INIT_ENVIRONMENT
4317 /* Set up any other necessary machine specific environment variables. */
4318 putenv (INIT_ENVIRONMENT);
4321 /* Choose directory for temp files. */
4323 choose_temp_base ();
4325 /* Make a table of what switches there are (switches, n_switches).
4326 Make a table of specified input files (infiles, n_infiles).
4327 Decode switches that are handled locally. */
4329 process_command (argc, argv);
4331 /* Initialize the vector of specs to just the default.
4332 This means one element containing 0s, as a terminator. */
4334 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4335 bcopy ((char *) default_compilers, (char *) compilers,
4336 sizeof default_compilers);
4337 n_compilers = n_default_compilers;
4339 /* Read specs from a file if there is one. */
4341 machine_suffix = concat4 (spec_machine, dir_separator_str,
4342 spec_version, dir_separator_str);
4343 just_machine_suffix = concat (spec_machine, dir_separator_str);
4345 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4346 /* Read the specs file unless it is a default one. */
4347 if (specs_file != 0 && strcmp (specs_file, "specs"))
4348 read_specs (specs_file);
4354 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4355 set_spec (extra_specs[k].name, extra_specs[k].spec);
4359 /* If not cross-compiling, look for startfiles in the standard places. */
4360 /* The fact that these are done here, after reading the specs file,
4361 means that it cannot be found in these directories.
4362 But that's okay. It should never be there anyway. */
4365 #ifdef MD_EXEC_PREFIX
4366 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4367 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4370 #ifdef MD_STARTFILE_PREFIX
4371 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4374 #ifdef MD_STARTFILE_PREFIX_1
4375 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4378 /* If standard_startfile_prefix is relative, base it on
4379 standard_exec_prefix. This lets us move the installed tree
4380 as a unit. If GCC_EXEC_PREFIX is defined, base
4381 standard_startfile_prefix on that as well. */
4382 if (*standard_startfile_prefix == '/'
4383 || *standard_startfile_prefix == DIR_SEPARATOR)
4384 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4388 if (gcc_exec_prefix)
4389 add_prefix (&startfile_prefixes,
4390 concat3 (gcc_exec_prefix, machine_suffix,
4391 standard_startfile_prefix),
4393 add_prefix (&startfile_prefixes,
4394 concat3 (standard_exec_prefix,
4396 standard_startfile_prefix),
4400 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4402 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4404 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4405 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4410 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4411 add_prefix (&startfile_prefixes,
4412 concat3 (gcc_exec_prefix, machine_suffix,
4413 standard_startfile_prefix),
4417 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4418 if (gcc_exec_prefix)
4420 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4421 + strlen (spec_version)
4422 + strlen (spec_machine) + 3);
4423 strcpy (temp, gcc_exec_prefix);
4424 strcat (temp, spec_machine);
4425 strcat (temp, dir_separator_str);
4426 strcat (temp, spec_version);
4427 strcat (temp, dir_separator_str);
4428 gcc_exec_prefix = temp;
4431 /* Now we have the specs.
4432 Set the `valid' bits for switches that match anything in any spec. */
4434 validate_all_switches ();
4436 /* Now that we have the switches and the specs, set
4437 the subdirectory based on the options. */
4438 set_multilib_dir ();
4440 /* Warn about any switches that no pass was interested in. */
4442 for (i = 0; i < n_switches; i++)
4443 if (! switches[i].valid)
4444 error ("unrecognized option `-%s'", switches[i].part1);
4446 /* Obey some of the options. */
4448 if (print_search_dirs)
4450 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4451 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4452 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4456 if (print_file_name)
4458 printf ("%s\n", find_file (print_file_name));
4462 if (print_prog_name)
4464 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4465 printf ("%s\n", (newname ? newname : print_prog_name));
4469 if (print_multi_lib)
4471 print_multilib_info ();
4475 if (print_multi_directory)
4477 if (multilib_dir == NULL)
4480 printf ("%s\n", multilib_dir);
4486 if (! strcmp (version_string, compiler_version))
4487 fprintf (stderr, "gcc version %s\n", version_string);
4489 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4490 version_string, compiler_version);
4497 fatal ("No input files");
4499 /* Make a place to record the compiler output file names
4500 that correspond to the input files. */
4502 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4503 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4505 /* Record which files were specified explicitly as link input. */
4507 explicit_link_files = xmalloc (n_infiles);
4508 bzero (explicit_link_files, n_infiles);
4510 for (i = 0; i < n_infiles; i++)
4512 register struct compiler *cp = 0;
4513 int this_file_error = 0;
4515 /* Tell do_spec what to substitute for %i. */
4517 input_filename = infiles[i].name;
4518 input_filename_length = strlen (input_filename);
4519 input_file_number = i;
4521 /* Use the same thing in %o, unless cp->spec says otherwise. */
4523 outfiles[i] = input_filename;
4525 /* Figure out which compiler from the file's suffix. */
4527 cp = lookup_compiler (infiles[i].name, input_filename_length,
4528 infiles[i].language);
4532 /* Ok, we found an applicable compiler. Run its spec. */
4533 /* First say how much of input_filename to substitute for %b */
4537 input_basename = input_filename;
4538 for (p = input_filename; *p; p++)
4539 if (*p == '/' || *p == DIR_SEPARATOR)
4540 input_basename = p + 1;
4542 /* Find a suffix starting with the last period,
4543 and set basename_length to exclude that suffix. */
4544 basename_length = strlen (input_basename);
4545 p = input_basename + basename_length;
4546 while (p != input_basename && *p != '.') --p;
4547 if (*p == '.' && p != input_basename)
4549 basename_length = p - input_basename;
4550 input_suffix = p + 1;
4556 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4558 len += strlen (cp->spec[j]);
4560 p = (char *) xmalloc (len + 1);
4563 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4566 strcpy (p + len, cp->spec[j]);
4567 len += strlen (cp->spec[j]);
4570 value = do_spec (p);
4573 this_file_error = 1;
4576 /* If this file's name does not contain a recognized suffix,
4577 record it as explicit linker input. */
4580 explicit_link_files[i] = 1;
4582 /* Clear the delete-on-failure queue, deleting the files in it
4583 if this compilation failed. */
4585 if (this_file_error)
4587 delete_failure_queue ();
4590 /* If this compilation succeeded, don't delete those files later. */
4591 clear_failure_queue ();
4594 /* Run ld to link all the compiler output files. */
4596 if (error_count == 0)
4598 int tmp = execution_count;
4602 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4604 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4605 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4607 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4609 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4610 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4613 for (i = 0; i < n_switches; i++)
4617 obstack_grow (&collect_obstack, " ", 1);
4620 obstack_grow (&collect_obstack, "-", 1);
4621 obstack_grow (&collect_obstack, switches[i].part1,
4622 strlen (switches[i].part1));
4624 for (args = switches[i].args; args && *args; args++)
4626 obstack_grow (&collect_obstack, " ", 1);
4627 obstack_grow (&collect_obstack, *args, strlen (*args));
4630 obstack_grow (&collect_obstack, "\0", 1);
4631 putenv (obstack_finish (&collect_obstack));
4633 value = do_spec (link_command_spec);
4636 linker_was_run = (tmp != execution_count);
4639 /* Warn if a -B option was specified but the prefix was never used. */
4640 unused_prefix_warnings (&exec_prefixes);
4641 unused_prefix_warnings (&startfile_prefixes);
4643 /* If options said don't run linker,
4644 complain about input files to be given to the linker. */
4646 if (! linker_was_run && error_count == 0)
4647 for (i = 0; i < n_infiles; i++)
4648 if (explicit_link_files[i])
4649 error ("%s: linker input file unused since linking not done",
4652 /* Delete some or all of the temporary files we made. */
4655 delete_failure_queue ();
4656 delete_temp_files ();
4658 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4663 /* Find the proper compilation spec for the file name NAME,
4664 whose length is LENGTH. LANGUAGE is the specified language,
4665 or 0 if none specified. */
4667 static struct compiler *
4668 lookup_compiler (name, length, language)
4673 struct compiler *cp;
4675 /* Look for the language, if one is spec'd. */
4678 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4682 if (cp->suffix[0] == '@'
4683 && !strcmp (cp->suffix + 1, language))
4687 error ("language %s not recognized", language);
4690 /* Look for a suffix. */
4691 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4693 if (/* The suffix `-' matches only the file name `-'. */
4694 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4696 (strlen (cp->suffix) < length
4697 /* See if the suffix matches the end of NAME. */
4699 && (!strcmp (cp->suffix,
4700 name + length - strlen (cp->suffix))
4701 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4702 && !strcasecmp (cp->suffix,
4703 name + length - strlen (cp->suffix)))))
4705 && !strcmp (cp->suffix,
4706 name + length - strlen (cp->suffix))))
4709 if (cp->spec[0][0] == '@')
4711 struct compiler *new;
4712 /* An alias entry maps a suffix to a language.
4713 Search for the language; pass 0 for NAME and LENGTH
4714 to avoid infinite recursion if language not found.
4715 Construct the new compiler spec. */
4716 language = cp->spec[0] + 1;
4717 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4718 new->suffix = cp->suffix;
4719 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4720 (char *) new->spec, sizeof new->spec);
4723 /* A non-alias entry: return it. */
4735 register char *value = (char *) malloc (size);
4737 fatal ("virtual memory exhausted");
4742 xrealloc (ptr, size)
4746 register char *value = (char *) realloc (ptr, size);
4748 fatal ("virtual memory exhausted");
4752 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4758 int len1 = strlen (s1);
4759 int len2 = strlen (s2);
4760 char *result = xmalloc (len1 + len2 + 1);
4762 strcpy (result, s1);
4763 strcpy (result + len1, s2);
4764 *(result + len1 + len2) = 0;
4770 concat3 (s1, s2, s3)
4773 return concat (concat (s1, s2), s3);
4777 concat4 (s1, s2, s3, s4)
4778 char *s1, *s2, *s3, *s4;
4780 return concat (concat (s1, s2), concat (s3, s4));
4784 concat6 (s1, s2, s3, s4, s5, s6)
4785 char *s1, *s2, *s3, *s4, *s5, *s6;
4787 return concat3 (concat (s1, s2), concat (s3, s4), concat (s5, s6));
4791 save_string (s, len)
4795 register char *result = xmalloc (len + 1);
4797 bcopy (s, result, len);
4803 pfatal_with_name (name)
4806 fatal ("%s: %s", name, my_strerror (errno));
4810 perror_with_name (name)
4813 error ("%s: %s", name, my_strerror (errno));
4820 error ("installation problem, cannot exec `%s': %s",
4821 name, my_strerror (errno));
4824 /* More 'friendly' abort that prints the line and file.
4825 config.h can #define abort fancy_abort if you like that sort of thing. */
4830 fatal ("Internal gcc abort.");
4835 /* Output an error message and exit */
4838 fatal VPROTO((char *format, ...))
4845 VA_START (ap, format);
4848 format = va_arg (ap, char*);
4851 fprintf (stderr, "%s: ", programname);
4852 vfprintf (stderr, format, ap);
4854 fprintf (stderr, "\n");
4855 delete_temp_files ();
4860 error VPROTO((char *format, ...))
4867 VA_START (ap, format);
4870 format = va_arg (ap, char*);
4873 fprintf (stderr, "%s: ", programname);
4874 vfprintf (stderr, format, ap);
4877 fprintf (stderr, "\n");
4880 #else /* not HAVE_VPRINTF */
4883 fatal (msg, arg1, arg2)
4884 char *msg, *arg1, *arg2;
4886 error (msg, arg1, arg2);
4887 delete_temp_files ();
4892 error (msg, arg1, arg2)
4893 char *msg, *arg1, *arg2;
4895 fprintf (stderr, "%s: ", programname);
4896 fprintf (stderr, msg, arg1, arg2);
4897 fprintf (stderr, "\n");
4900 #endif /* not HAVE_VPRINTF */
4904 validate_all_switches ()
4906 struct compiler *comp;
4909 struct spec_list *spec;
4911 for (comp = compilers; comp->spec[0]; comp++)
4914 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4918 if (c == '%' && *p == '{')
4919 /* We have a switch spec. */
4920 validate_switches (p + 1);
4924 /* look through the linked list of extra specs read from the specs file */
4925 for (spec = specs; spec ; spec = spec->next)
4929 if (c == '%' && *p == '{')
4930 /* We have a switch spec. */
4931 validate_switches (p + 1);
4934 p = link_command_spec;
4936 if (c == '%' && *p == '{')
4937 /* We have a switch spec. */
4938 validate_switches (p + 1);
4940 /* Now notice switches mentioned in the machine-specific specs. */
4944 if (c == '%' && *p == '{')
4945 /* We have a switch spec. */
4946 validate_switches (p + 1);
4950 if (c == '%' && *p == '{')
4951 /* We have a switch spec. */
4952 validate_switches (p + 1);
4956 if (c == '%' && *p == '{')
4957 /* We have a switch spec. */
4958 validate_switches (p + 1);
4960 p = signed_char_spec;
4962 if (c == '%' && *p == '{')
4963 /* We have a switch spec. */
4964 validate_switches (p + 1);
4968 if (c == '%' && *p == '{')
4969 /* We have a switch spec. */
4970 validate_switches (p + 1);
4974 if (c == '%' && *p == '{')
4975 /* We have a switch spec. */
4976 validate_switches (p + 1);
4980 if (c == '%' && *p == '{')
4981 /* We have a switch spec. */
4982 validate_switches (p + 1);
4986 if (c == '%' && *p == '{')
4987 /* We have a switch spec. */
4988 validate_switches (p + 1);
4992 if (c == '%' && *p == '{')
4993 /* We have a switch spec. */
4994 validate_switches (p + 1);
4998 if (c == '%' && *p == '{')
4999 /* We have a switch spec. */
5000 validate_switches (p + 1);
5005 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
5007 p = extra_specs[i].spec;
5009 if (c == '%' && *p == '{')
5010 /* We have a switch spec. */
5011 validate_switches (p + 1);
5018 /* Look at the switch-name that comes after START
5019 and mark as valid all supplied switches that match it. */
5022 validate_switches (start)
5025 register char *p = start;
5040 while (*p != ':' && *p != '}') p++;
5044 else if (p[-1] == '*')
5046 /* Mark all matching switches as valid. */
5048 for (i = 0; i < n_switches; i++)
5049 if (!strncmp (switches[i].part1, filter, p - filter))
5050 switches[i].valid = 1;
5054 /* Mark an exact matching switch as valid. */
5055 for (i = 0; i < n_switches; i++)
5057 if (!strncmp (switches[i].part1, filter, p - filter)
5058 && switches[i].part1[p - filter] == 0)
5059 switches[i].valid = 1;
5064 /* Check whether a particular argument was used. */
5073 for (i = 0; i < n_switches; i++)
5074 if (! strncmp (switches[i].part1, p, len)
5075 && strlen (switches[i].part1) == len)
5080 /* Check whether a particular argument is a default argument. */
5082 #ifndef MULTILIB_DEFAULTS
5083 #define MULTILIB_DEFAULTS { NULL }
5086 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
5089 default_arg (p, len)
5093 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
5096 for (i = 0; i < count; i++)
5097 if (multilib_defaults[i] != NULL
5098 && strncmp (multilib_defaults[i], p, len) == 0
5099 && multilib_defaults[i][len] == '\0')
5105 /* Work out the subdirectory to use based on the
5106 options. The format of multilib_select is a list of elements.
5107 Each element is a subdirectory name followed by a list of options
5108 followed by a semicolon. gcc will consider each line in turn. If
5109 none of the options beginning with an exclamation point are
5110 present, and all of the other options are present, that
5111 subdirectory will be used. */
5116 char *p = multilib_select;
5118 char *this_path, *this_arg;
5124 /* Ignore newlines. */
5131 /* Get the initial path. */
5139 this_path_len = p - this_path;
5141 /* Check the arguments. */
5156 while (*p != ' ' && *p != ';')
5163 if (*this_arg != '!')
5171 /* If this is a default argument, we can just ignore it.
5172 This is true even if this_arg begins with '!'. Beginning
5173 with '!' does not mean that this argument is necessarily
5174 inappropriate for this library: it merely means that
5175 there is a more specific library which uses this
5176 argument. If this argument is a default, we need not
5177 consider that more specific library. */
5178 if (! default_arg (this_arg, p - this_arg))
5180 ok = used_arg (this_arg, p - this_arg);
5191 if (this_path_len != 1
5192 || this_path[0] != '.')
5194 multilib_dir = xmalloc (this_path_len + 1);
5195 strncpy (multilib_dir, this_path, this_path_len);
5196 multilib_dir[this_path_len] = '\0';
5205 /* Print out the multiple library subdirectory selection
5206 information. This prints out a series of lines. Each line looks
5207 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5208 required. Only the desired options are printed out, the negative
5209 matches. The options are print without a leading dash. There are
5210 no spaces to make it easy to use the information in the shell.
5211 Each subdirectory is printed only once. This assumes the ordering
5212 generated by the genmultilib script. */
5215 print_multilib_info ()
5217 char *p = multilib_select;
5218 char *last_path = 0, *this_path;
5220 int last_path_len = 0;
5224 /* Ignore newlines. */
5231 /* Get the initial path. */
5240 /* If this is a duplicate, skip it. */
5241 skip = (last_path != 0 && p - this_path == last_path_len
5242 && ! strncmp (last_path, this_path, last_path_len));
5244 last_path = this_path;
5245 last_path_len = p - this_path;
5247 /* If this directory requires any default arguments, we can skip
5248 it. We will already have printed a directory identical to
5249 this one which does not require that default argument. */
5267 while (*q != ' ' && *q != ';')
5275 && default_arg (arg, q - arg))
5290 for (p1 = last_path; p1 < p; p1++)
5309 use_arg = *p != '!';
5314 while (*p != ' ' && *p != ';')