1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 96, 1997 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. */
46 #include "gansidecl.h"
61 /* ??? Need to find a GCC header to put these in. */
62 extern int pexecute PROTO ((const char *, char * const *, const char *,
63 const char *, char **, char **, int));
64 extern int pwait PROTO ((int, int *, int));
65 /* Flag arguments to pexecute. */
66 #define PEXECUTE_FIRST 1
67 #define PEXECUTE_LAST 2
68 #define PEXECUTE_SEARCH 4
69 #define PEXECUTE_VERBOSE 8
72 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
75 #define WTERMSIG(S) ((S) & 0x7f)
78 #define WIFEXITED(S) (((S) & 0xff) == 0)
81 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
85 #define exit __posix_exit
88 /* Define O_RDONLY if the system hasn't defined it for us. */
97 /* Test if something is a normal file. */
99 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
102 /* Test if something is a directory. */
104 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
107 /* By default there is no special suffix for executables. */
108 #ifdef EXECUTABLE_SUFFIX
109 #define HAVE_EXECUTABLE_SUFFIX
111 #define EXECUTABLE_SUFFIX ""
114 /* By default, the suffix for object files is ".o". */
116 #define HAVE_OBJECT_SUFFIX
118 #define OBJECT_SUFFIX ".o"
121 /* By default, colon separates directories in a path. */
122 #ifndef PATH_SEPARATOR
123 #define PATH_SEPARATOR ':'
126 #ifndef DIR_SEPARATOR
127 #define DIR_SEPARATOR '/'
130 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
132 #define obstack_chunk_alloc xmalloc
133 #define obstack_chunk_free free
136 extern char *getenv ();
138 extern char *choose_temp_base PROTO((void));
144 #ifndef HAVE_STRERROR
147 extern const char *const sys_errlist[];
149 extern char *sys_errlist[];
152 extern char *strerror();
155 /* If a stage of compilation returns an exit status >= 1,
156 compilation of that file ceases. */
158 #define MIN_FATAL_STATUS 1
160 /* Flag saying to print the directories gcc will search through looking for
161 programs, libraries, etc. */
163 static int print_search_dirs;
165 /* Flag saying to print the full filename of this file
166 as found through our usual search mechanism. */
168 static char *print_file_name = NULL;
170 /* As print_file_name, but search for executable file. */
172 static char *print_prog_name = NULL;
174 /* Flag saying to print the relative path we'd use to
175 find libgcc.a given the current compiler flags. */
177 static int print_multi_directory;
179 /* Flag saying to print the list of subdirectories and
180 compiler flags used to select them in a standard form. */
182 static int print_multi_lib;
184 /* Flag indicating whether we should print the command and arguments */
186 static int verbose_flag;
188 /* Nonzero means write "temp" files in source directory
189 and use the source file's name in them, and don't delete them. */
191 static int save_temps_flag;
193 /* The compiler version. */
195 static char *compiler_version;
197 /* The target version specified with -V */
199 static char *spec_version = DEFAULT_TARGET_VERSION;
201 /* The target machine specified with -b. */
203 static char *spec_machine = DEFAULT_TARGET_MACHINE;
205 /* Nonzero if cross-compiling.
206 When -b is used, the value comes from the `specs' file. */
209 static char *cross_compile = "1";
211 static char *cross_compile = "0";
214 /* The number of errors that have occurred; the link phase will not be
215 run if this is non-zero. */
216 static int error_count = 0;
218 /* This is the obstack which we use to allocate many strings. */
220 static struct obstack obstack;
222 /* This is the obstack to build an environment variable to pass to
223 collect2 that describes all of the relevant switches of what to
224 pass the compiler in building the list of pointers to constructors
227 static struct obstack collect_obstack;
229 extern char *version_string;
231 /* Forward declaration for prototypes. */
234 static void init_spec PROTO((int));
235 static void set_spec PROTO((char *, char *));
236 static struct compiler *lookup_compiler PROTO((char *, int, char *));
237 static char *build_search_list PROTO((struct path_prefix *, char *, int));
238 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
239 static char *find_a_file PROTO((struct path_prefix *, char *, int));
240 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
241 static char *skip_whitespace PROTO((char *));
242 static void record_temp_file PROTO((char *, int, int));
243 static void delete_if_ordinary PROTO((char *));
244 static void delete_temp_files PROTO((void));
245 static void delete_failure_queue PROTO((void));
246 static void clear_failure_queue PROTO((void));
247 static int check_live_switch PROTO((int, int));
248 static char *handle_braces PROTO((char *));
249 static char *save_string PROTO((char *, int));
250 static char *concat PVPROTO((char *, ...));
251 static int do_spec PROTO((char *));
252 static int do_spec_1 PROTO((char *, int, char *));
253 static char *find_file PROTO((char *));
254 static int is_directory PROTO((char *, char *, int));
255 static void validate_switches PROTO((char *));
256 static void validate_all_switches PROTO((void));
257 static void give_switch PROTO((int, int, int));
258 static int used_arg PROTO((char *, int));
259 static int default_arg PROTO((char *, int));
260 static void set_multilib_dir PROTO((void));
261 static void print_multilib_info PROTO((void));
262 static void pfatal_with_name PROTO((char *));
263 static void perror_with_name PROTO((char *));
264 static void pfatal_pexecute PROTO((char *, char *));
266 static void fatal PVPROTO((char *, ...));
267 static void error PVPROTO((char *, ...));
269 /* We must not provide any prototype here, even if ANSI C. */
270 static void fatal PROTO(());
271 static void error PROTO(());
278 /* Specs are strings containing lines, each of which (if not blank)
279 is made up of a program name, and arguments separated by spaces.
280 The program name must be exact and start from root, since no path
281 is searched and it is unreliable to depend on the current working directory.
282 Redirection of input or output is not supported; the subprograms must
283 accept filenames saying what files to read and write.
285 In addition, the specs can contain %-sequences to substitute variable text
286 or for conditional text. Here is a table of all defined %-sequences.
287 Note that spaces are not generated automatically around the results of
288 expanding these sequences; therefore, you can concatenate them together
289 or with constant text in a single argument.
291 %% substitute one % into the program name or argument.
292 %i substitute the name of the input file being processed.
293 %b substitute the basename of the input file being processed.
294 This is the substring up to (and not including) the last period
295 and not including the directory.
296 %g substitute the temporary-file-name-base. This is a string chosen
297 once per compilation. Different temporary file names are made by
298 concatenation of constant strings on the end, as in `%g.s'.
299 %g also has the same effect of %d.
300 %u like %g, but make the temporary file name unique.
301 %U returns the last file name generated with %u.
302 %d marks the argument containing or following the %d as a
303 temporary file name, so that that file will be deleted if CC exits
304 successfully. Unlike %g, this contributes no text to the argument.
305 %w marks the argument containing or following the %w as the
306 "output file" of this compilation. This puts the argument
307 into the sequence of arguments that %o will substitute later.
309 like %{...} but mark last argument supplied within
310 as a file to be deleted on failure.
311 %o substitutes the names of all the output files, with spaces
312 automatically placed around them. You should write spaces
313 around the %o as well or the results are undefined.
314 %o is for use in the specs for running the linker.
315 Input files whose names have no recognized suffix are not compiled
316 at all, but they are included among the output files, so they will
318 %O substitutes the suffix for object files.
319 %p substitutes the standard macro predefinitions for the
320 current target machine. Use this when running cpp.
321 %P like %p, but puts `__' before and after the name of each macro.
322 (Except macros that already have __.)
324 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
325 %s current argument is the name of a library or startup file of some sort.
326 Search for that file in a standard list of directories
327 and substitute the full name found.
328 %eSTR Print STR as an error message. STR is terminated by a newline.
329 Use this when inconsistent options are detected.
330 %x{OPTION} Accumulate an option for %X.
331 %X Output the accumulated linker options specified by compilations.
332 %Y Output the accumulated assembler options specified by compilations.
333 %Z Output the accumulated preprocessor options specified by compilations.
334 %v1 Substitute the major version number of GCC.
335 (For version 2.5.n, this is 2.)
336 %v2 Substitute the minor version number of GCC.
337 (For version 2.5.n, this is 5.)
338 %a process ASM_SPEC as a spec.
339 This allows config.h to specify part of the spec for running as.
340 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
341 used here. This can be used to run a post-processor after the
342 assembler has done it's job.
343 %D Dump out a -L option for each directory in startfile_prefixes.
344 If multilib_dir is set, extra entries are generated with it affixed.
345 %l process LINK_SPEC as a spec.
346 %L process LIB_SPEC as a spec.
347 %G process LIBGCC_SPEC as a spec.
348 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
349 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
350 %c process SIGNED_CHAR_SPEC as a spec.
351 %C process CPP_SPEC as a spec. A capital C is actually used here.
352 %1 process CC1_SPEC as a spec.
353 %2 process CC1PLUS_SPEC as a spec.
354 %| output "-" if the input for the current command is coming from a pipe.
355 %* substitute the variable part of a matched option. (See below.)
356 Note that each comma in the substituted string is replaced by
358 %{S} substitutes the -S switch, if that switch was given to CC.
359 If that switch was not specified, this substitutes nothing.
360 Here S is a metasyntactic variable.
361 %{S*} substitutes all the switches specified to CC whose names start
362 with -S. This is used for -o, -D, -I, etc; switches that take
363 arguments. CC considers `-o foo' as being one switch whose
364 name starts with `o'. %{o*} would substitute this text,
365 including the space; thus, two arguments would be generated.
366 %{^S*} likewise, but don't put a blank between a switch and any args.
367 %{S*:X} substitutes X if one or more switches whose names start with -S are
368 specified to CC. Note that the tail part of the -S option
369 (i.e. the part matched by the `*') will be substituted for each
370 occurrence of %* within X.
371 %{S:X} substitutes X, but only if the -S switch was given to CC.
372 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
373 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
374 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
375 %{.S:X} substitutes X, but only if processing a file with suffix S.
376 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
377 %(Spec) processes a specification defined in a specs file as *Spec:
378 %[Spec] as above, but put __ around -D arguments
380 The conditional text X in a %{S:X} or %{!S:X} construct may contain
381 other nested % constructs or spaces, or even newlines. They are
382 processed as usual, as described above.
384 The -O, -f, -m, and -W switches are handled specifically in these
385 constructs. If another value of -O or the negated form of a -f, -m, or
386 -W switch is found later in the command line, the earlier switch
387 value is ignored, except with {S*} where S is just one letter; this
388 passes all matching options.
390 The character | is used to indicate that a command should be piped to
391 the following command, but only if -pipe is specified.
393 Note that it is built into CC which switches take arguments and which
394 do not. You might think it would be useful to generalize this to
395 allow each compiler's spec to say which switches take arguments. But
396 this cannot be done in a consistent fashion. CC cannot even decide
397 which input files have been specified without knowing which switches
398 take arguments, and it must know which input files to compile in order
399 to tell which compilers to run.
401 CC also knows implicitly that arguments starting in `-l' are to be
402 treated as compiler output files, and passed to the linker in their
403 proper position among the other output files. */
405 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
407 /* config.h can define ASM_SPEC to provide extra args to the assembler
408 or extra switch-translations. */
413 /* config.h can define ASM_FINAL_SPEC to run a post processor after
414 the assembler has run. */
415 #ifndef ASM_FINAL_SPEC
416 #define ASM_FINAL_SPEC ""
419 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
420 or extra switch-translations. */
425 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
426 or extra switch-translations. */
431 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
432 or extra switch-translations. */
434 #define CC1PLUS_SPEC ""
437 /* config.h can define LINK_SPEC to provide extra args to the linker
438 or extra switch-translations. */
443 /* config.h can define LIB_SPEC to override the default libraries. */
445 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
448 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
451 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
452 /* Have gcc do the search for libgcc.a. */
453 #define LIBGCC_SPEC "libgcc.a%s"
455 #define LIBGCC_SPEC "-lgcc"
459 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
460 #ifndef STARTFILE_SPEC
461 #define STARTFILE_SPEC \
462 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
465 /* config.h can define SWITCHES_NEED_SPACES to control which options
466 require spaces between the option and the argument. */
467 #ifndef SWITCHES_NEED_SPACES
468 #define SWITCHES_NEED_SPACES ""
471 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
473 #define ENDFILE_SPEC ""
476 /* This spec is used for telling cpp whether char is signed or not. */
477 #ifndef SIGNED_CHAR_SPEC
478 /* Use #if rather than ?:
479 because MIPS C compiler rejects like ?: in initializers. */
480 #if DEFAULT_SIGNED_CHAR
481 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
483 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
487 static char *cpp_spec = CPP_SPEC;
488 static char *cpp_predefines = CPP_PREDEFINES;
489 static char *cc1_spec = CC1_SPEC;
490 static char *cc1plus_spec = CC1PLUS_SPEC;
491 static char *signed_char_spec = SIGNED_CHAR_SPEC;
492 static char *asm_spec = ASM_SPEC;
493 static char *asm_final_spec = ASM_FINAL_SPEC;
494 static char *link_spec = LINK_SPEC;
495 static char *lib_spec = LIB_SPEC;
496 static char *libgcc_spec = LIBGCC_SPEC;
497 static char *endfile_spec = ENDFILE_SPEC;
498 static char *startfile_spec = STARTFILE_SPEC;
499 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
501 /* Some compilers have limits on line lengths, and the multilib_select
502 and/or multilib_matches strings can be very long, so we build them at
504 static struct obstack multilib_obstack;
505 static char *multilib_select;
506 static char *multilib_matches;
507 static char *multilib_defaults;
508 #include "multilib.h"
510 /* Check whether a particular argument is a default argument. */
512 #ifndef MULTILIB_DEFAULTS
513 #define MULTILIB_DEFAULTS { "" }
516 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
519 struct user_specs *next;
523 static struct user_specs *user_specs_head, *user_specs_tail;
525 /* This defines which switch letters take arguments. */
527 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
528 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
529 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
530 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
531 || (CHAR) == 'L' || (CHAR) == 'A')
533 #ifndef SWITCH_TAKES_ARG
534 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
537 /* This defines which multi-letter switches take arguments. */
539 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
540 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
541 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
542 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
543 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
544 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
545 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
547 #ifndef WORD_SWITCH_TAKES_ARG
548 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
551 /* Record the mapping from file suffixes for compilation specs. */
555 char *suffix; /* Use this compiler for input files
556 whose names end in this suffix. */
558 char *spec[4]; /* To use this compiler, concatenate these
559 specs and pass to do_spec. */
562 /* Pointer to a vector of `struct compiler' that gives the spec for
563 compiling a file, based on its suffix.
564 A file that does not end in any of these suffixes will be passed
565 unchanged to the loader and nothing else will be done to it.
567 An entry containing two 0s is used to terminate the vector.
569 If multiple entries match a file, the last matching one is used. */
571 static struct compiler *compilers;
573 /* Number of entries in `compilers', not counting the null terminator. */
575 static int n_compilers;
577 /* The default list of file name suffixes and their compilation specs. */
579 static struct compiler default_compilers[] =
581 /* Add lists of suffixes of known languages here. If those languages
582 were no present when we built the driver, we will hit these copies
583 and given a more meaningful error than "file not used since
584 linking is not done". */
585 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
586 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
587 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
588 {".fpp", "#Fortran"},
589 /* Next come the entries for C. */
592 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
593 %{C:%{!E:%eGNU C does not support -C without using -E}}\
594 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
595 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
596 %{ansi:-trigraphs -D__STRICT_ANSI__}\
597 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
598 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
599 %{traditional-cpp:-traditional}\
600 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
601 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
602 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
603 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
604 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
605 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
607 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
608 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
610 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
611 %{!pipe:%g.s} %A\n }}}}"},
613 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
614 %{C:%{!E:%eGNU C does not support -C without using -E}}\
615 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
616 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
617 %{ansi:-trigraphs -D__STRICT_ANSI__}\
618 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
619 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
620 %{traditional-cpp:-traditional}\
621 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
623 %{!E:%e-E required when input is from standard input}"},
624 {".m", "@objective-c"},
626 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
627 %{C:%{!E:%eGNU C does not support -C without using -E}}\
628 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
629 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
630 %{ansi:-trigraphs -D__STRICT_ANSI__}\
631 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
632 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
633 %{traditional-cpp:-traditional}\
634 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
635 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
636 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
637 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
638 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
639 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
640 -lang-objc %{gen-decls} \
642 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
643 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
645 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
646 %{!pipe:%g.s} %A\n }}}}"},
649 "%{!E:%eCompilation of header file requested} \
650 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
651 %{C:%{!E:%eGNU C does not support -C without using -E}}\
652 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
653 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
654 %{ansi:-trigraphs -D__STRICT_ANSI__}\
655 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
656 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
657 %{traditional-cpp:-traditional}\
658 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
660 {".i", "@cpp-output"},
662 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
663 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
664 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
666 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
667 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
669 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
670 %{!pipe:%g.s} %A\n }}}}"},
671 {".s", "@assembler"},
673 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
674 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
676 {".S", "@assembler-with-cpp"},
677 {"@assembler-with-cpp",
678 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
679 %{C:%{!E:%eGNU C does not support -C without using -E}}\
680 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
681 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
682 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
683 %{traditional-cpp:-traditional}\
684 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
685 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
686 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
687 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
688 %{!pipe:%g.s} %A\n }}}}"},
690 /* Mark end of table */
694 /* Number of elements in default_compilers, not counting the terminator. */
696 static int n_default_compilers
697 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
699 /* Here is the spec for running the linker, after compiling all files. */
701 /* -u* was put back because both BSD and SysV seem to support it. */
702 /* %{static:} simply prevents an error message if the target machine
703 doesn't handle -static. */
704 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
705 scripts which exist in user specified directories, or in standard
707 #ifdef LINK_LIBGCC_SPECIAL
708 /* Don't generate -L options. */
709 static char *link_command_spec = "\
711 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
712 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
713 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
715 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
716 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
721 static char *link_command_spec = "\
723 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
724 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
725 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
726 %{static:} %{L*} %D %o\
727 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
728 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
733 /* A vector of options to give to the linker.
734 These options are accumulated by %x,
735 and substituted into the linker command with %X. */
736 static int n_linker_options;
737 static char **linker_options;
739 /* A vector of options to give to the assembler.
740 These options are accumulated by -Wa,
741 and substituted into the assembler command with %Y. */
742 static int n_assembler_options;
743 static char **assembler_options;
745 /* A vector of options to give to the preprocessor.
746 These options are accumulated by -Wp,
747 and substituted into the preprocessor command with %Z. */
748 static int n_preprocessor_options;
749 static char **preprocessor_options;
751 /* Define how to map long options into short ones. */
753 /* This structure describes one mapping. */
756 /* The long option's name. */
758 /* The equivalent short option. */
760 /* Argument info. A string of flag chars; NULL equals no options.
761 a => argument required.
762 o => argument optional.
763 j => join argument to equivalent, making one word.
764 * => require other text after NAME as an argument. */
768 /* This is the table of mappings. Mappings are tried sequentially
769 for each option encountered; the first one that matches, wins. */
771 struct option_map option_map[] =
773 {"--all-warnings", "-Wall", 0},
774 {"--ansi", "-ansi", 0},
775 {"--assemble", "-S", 0},
776 {"--assert", "-A", "a"},
777 {"--comments", "-C", 0},
778 {"--compile", "-c", 0},
779 {"--debug", "-g", "oj"},
780 {"--define-macro", "-D", "aj"},
781 {"--dependencies", "-M", 0},
782 {"--dump", "-d", "a"},
783 {"--dumpbase", "-dumpbase", "a"},
784 {"--entry", "-e", 0},
785 {"--extra-warnings", "-W", 0},
786 {"--for-assembler", "-Wa", "a"},
787 {"--for-linker", "-Xlinker", "a"},
788 {"--force-link", "-u", "a"},
789 {"--imacros", "-imacros", "a"},
790 {"--include", "-include", "a"},
791 {"--include-barrier", "-I-", 0},
792 {"--include-directory", "-I", "aj"},
793 {"--include-directory-after", "-idirafter", "a"},
794 {"--include-prefix", "-iprefix", "a"},
795 {"--include-with-prefix", "-iwithprefix", "a"},
796 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
797 {"--include-with-prefix-after", "-iwithprefix", "a"},
798 {"--language", "-x", "a"},
799 {"--library-directory", "-L", "a"},
800 {"--machine", "-m", "aj"},
801 {"--machine-", "-m", "*j"},
802 {"--no-line-commands", "-P", 0},
803 {"--no-precompiled-includes", "-noprecomp", 0},
804 {"--no-standard-includes", "-nostdinc", 0},
805 {"--no-standard-libraries", "-nostdlib", 0},
806 {"--no-warnings", "-w", 0},
807 {"--optimize", "-O", "oj"},
808 {"--output", "-o", "a"},
809 {"--pedantic", "-pedantic", 0},
810 {"--pedantic-errors", "-pedantic-errors", 0},
811 {"--pipe", "-pipe", 0},
812 {"--prefix", "-B", "a"},
813 {"--preprocess", "-E", 0},
814 {"--print-search-dirs", "-print-search-dirs", 0},
815 {"--print-file-name", "-print-file-name=", "aj"},
816 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
817 {"--print-missing-file-dependencies", "-MG", 0},
818 {"--print-multi-lib", "-print-multi-lib", 0},
819 {"--print-multi-directory", "-print-multi-directory", 0},
820 {"--print-prog-name", "-print-prog-name=", "aj"},
821 {"--profile", "-p", 0},
822 {"--profile-blocks", "-a", 0},
823 {"--quiet", "-q", 0},
824 {"--save-temps", "-save-temps", 0},
825 {"--shared", "-shared", 0},
826 {"--silent", "-q", 0},
827 {"--specs", "-specs=", "aj"},
828 {"--static", "-static", 0},
829 {"--symbolic", "-symbolic", 0},
830 {"--target", "-b", "a"},
831 {"--trace-includes", "-H", 0},
832 {"--traditional", "-traditional", 0},
833 {"--traditional-cpp", "-traditional-cpp", 0},
834 {"--trigraphs", "-trigraphs", 0},
835 {"--undefine-macro", "-U", "aj"},
836 {"--use-version", "-V", "a"},
837 {"--user-dependencies", "-MM", 0},
838 {"--verbose", "-v", 0},
839 {"--version", "-dumpversion", 0},
840 {"--warn-", "-W", "*j"},
841 {"--write-dependencies", "-MD", 0},
842 {"--write-user-dependencies", "-MMD", 0},
846 /* Translate the options described by *ARGCP and *ARGVP.
847 Make a new vector and store it back in *ARGVP,
848 and store its length in *ARGVC. */
851 translate_options (argcp, argvp)
857 char **argv = *argvp;
858 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
862 newv[newindex++] = argv[i++];
866 /* Translate -- options. */
867 if (argv[i][0] == '-' && argv[i][1] == '-')
869 /* Find a mapping that applies to this option. */
870 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
872 int optlen = strlen (option_map[j].name);
873 int arglen = strlen (argv[i]);
874 int complen = arglen > optlen ? optlen : arglen;
875 char *arginfo = option_map[j].arg_info;
880 if (!strncmp (argv[i], option_map[j].name, complen))
887 k < sizeof (option_map) / sizeof (option_map[0]);
889 if (strlen (option_map[k].name) >= arglen
890 && !strncmp (argv[i], option_map[k].name, arglen))
892 error ("Ambiguous abbreviation %s", argv[i]);
896 if (k != sizeof (option_map) / sizeof (option_map[0]))
902 /* If the option has an argument, accept that. */
903 if (argv[i][optlen] == '=')
904 arg = argv[i] + optlen + 1;
906 /* If this mapping requires extra text at end of name,
907 accept that as "argument". */
908 else if (index (arginfo, '*') != 0)
909 arg = argv[i] + optlen;
911 /* Otherwise, extra text at end means mismatch.
912 Try other mappings. */
917 else if (index (arginfo, '*') != 0)
919 error ("Incomplete `%s' option", option_map[j].name);
923 /* Handle arguments. */
924 if (index (arginfo, 'a') != 0)
930 error ("Missing argument to `%s' option",
938 else if (index (arginfo, '*') != 0)
940 else if (index (arginfo, 'o') == 0)
943 error ("Extraneous argument to `%s' option",
948 /* Store the translation as one argv elt or as two. */
949 if (arg != 0 && index (arginfo, 'j') != 0)
950 newv[newindex++] = concat (option_map[j].equivalent, arg,
954 newv[newindex++] = option_map[j].equivalent;
955 newv[newindex++] = arg;
958 newv[newindex++] = option_map[j].equivalent;
966 /* Handle old-fashioned options--just copy them through,
967 with their arguments. */
968 else if (argv[i][0] == '-')
970 char *p = argv[i] + 1;
974 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
975 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
976 else if (WORD_SWITCH_TAKES_ARG (p))
977 nskip += WORD_SWITCH_TAKES_ARG (p);
978 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
981 else if (! strcmp (p, "Xlinker"))
984 /* Watch out for an option at the end of the command line that
985 is missing arguments, and avoid skipping past the end of the
987 if (nskip + i > argc)
992 newv[newindex++] = argv[i++];
997 /* Ordinary operands, or +e options. */
998 newv[newindex++] = argv[i++];
1011 #ifdef HAVE_STRERROR
1017 static char buffer[30];
1019 return "cannot access";
1021 if (e > 0 && e < sys_nerr)
1022 return sys_errlist[e];
1024 sprintf (buffer, "Unknown error %d", e);
1029 /* Read compilation specs from a file named FILENAME,
1030 replacing the default ones.
1032 A suffix which starts with `*' is a definition for
1033 one of the machine-specific sub-specs. The "suffix" should be
1034 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1035 The corresponding spec is stored in asm_spec, etc.,
1036 rather than in the `compilers' vector.
1038 Anything invalid in the file is a fatal error. */
1041 read_specs (filename)
1046 struct stat statbuf;
1051 fprintf (stderr, "Reading specs from %s\n", filename);
1053 /* Open and stat the file. */
1054 desc = open (filename, O_RDONLY, 0);
1056 pfatal_with_name (filename);
1057 if (stat (filename, &statbuf) < 0)
1058 pfatal_with_name (filename);
1060 /* Read contents of file into BUFFER. */
1061 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1062 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1064 pfatal_with_name (filename);
1065 buffer[readlen] = 0;
1068 /* Scan BUFFER for specs, putting them in the vector. */
1074 char *in, *out, *p1, *p2;
1076 /* Advance P in BUFFER to the next nonblank nocomment line. */
1077 p = skip_whitespace (p);
1081 /* Find the colon that should end the suffix. */
1083 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1084 /* The colon shouldn't be missing. */
1086 fatal ("specs file malformed after %d characters", p1 - buffer);
1087 /* Skip back over trailing whitespace. */
1089 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1090 /* Copy the suffix to a string. */
1091 suffix = save_string (p, p2 - p);
1092 /* Find the next line. */
1093 p = skip_whitespace (p1 + 1);
1095 fatal ("specs file malformed after %d characters", p - buffer);
1097 /* Find next blank line. */
1098 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1099 /* Specs end at the blank line and do not include the newline. */
1100 spec = save_string (p, p1 - p);
1103 /* Delete backslash-newline sequences from the spec. */
1108 if (in[0] == '\\' && in[1] == '\n')
1110 else if (in[0] == '#')
1112 while (*in && *in != '\n') in++;
1119 if (suffix[0] == '*')
1121 if (! strcmp (suffix, "*link_command"))
1122 link_command_spec = spec;
1124 set_spec (suffix + 1, spec);
1128 /* Add this pair to the vector. */
1130 = ((struct compiler *)
1131 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1132 compilers[n_compilers].suffix = suffix;
1133 bzero ((char *) compilers[n_compilers].spec,
1134 sizeof compilers[n_compilers].spec);
1135 compilers[n_compilers].spec[0] = spec;
1137 bzero ((char *) &compilers[n_compilers],
1138 sizeof compilers[n_compilers]);
1142 link_command_spec = spec;
1145 if (link_command_spec == 0)
1146 fatal ("spec file has no spec for linking");
1155 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1156 be considered whitespace. */
1157 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1159 else if (*p == '\n' || *p == ' ' || *p == '\t')
1163 while (*p != '\n') p++;
1173 /* Structure to keep track of the specs that have been defined so far.
1174 These are accessed using %(specname) or %[specname] in a compiler
1179 /* The following 2 fields must be first */
1180 /* to allow EXTRA_SPECS to be initialized */
1181 char *name; /* name of the spec. */
1182 char *ptr; /* available ptr if no static pointer */
1184 /* The following fields are not initialized */
1185 /* by EXTRA_SPECS */
1186 char **ptr_spec; /* pointer to the spec itself. */
1187 struct spec_list *next; /* Next spec in linked list. */
1188 int name_len; /* length of the name */
1189 int alloc_p; /* whether string was allocated */
1192 #define INIT_STATIC_SPEC(NAME,PTR) \
1193 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1195 /* List of statically defined specs */
1196 static struct spec_list static_specs[] = {
1197 INIT_STATIC_SPEC ("asm", &asm_spec),
1198 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1199 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1200 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1201 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1202 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1203 INIT_STATIC_SPEC ("link", &link_spec),
1204 INIT_STATIC_SPEC ("lib", &lib_spec),
1205 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1206 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1207 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1208 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1209 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1210 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1211 INIT_STATIC_SPEC ("version", &compiler_version),
1212 INIT_STATIC_SPEC ("multilib", &multilib_select),
1213 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1214 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1215 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1218 #ifdef EXTRA_SPECS /* additional specs needed */
1219 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1222 /* List of dynamically allocates specs that have been defined so far. */
1224 static struct spec_list *specs = (struct spec_list *)0;
1227 /* Initialize the specs lookup routines. */
1230 init_spec (use_extra_p)
1233 struct spec_list *next = (struct spec_list *)0;
1234 struct spec_list *sl = (struct spec_list *)0;
1238 return; /* already initialized */
1242 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1244 sl = &extra_specs[i];
1246 sl->name_len = strlen (sl->name);
1247 sl->ptr_spec = &sl->ptr;
1252 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1254 sl = &static_specs[i];
1263 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1264 removed; If the spec starts with a + then SPEC is added to the end of the
1268 set_spec (name, spec)
1272 struct spec_list *sl;
1274 int name_len = strlen (name);
1279 /* See if the spec already exists */
1280 for (sl = specs; sl; sl = sl->next)
1281 if (name_len == sl->name_len && !strcmp (sl->name, name))
1286 /* Not found - make it */
1287 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1288 sl->name = save_string (name, strlen (name));
1289 sl->name_len = name_len;
1290 sl->ptr_spec = &sl->ptr;
1292 *(sl->ptr_spec) = "";
1297 old_spec = *(sl->ptr_spec);
1298 *(sl->ptr_spec) = ((spec[0] == '+' && isspace (spec[1]))
1299 ? concat (old_spec, spec + 1, NULL_PTR)
1300 : save_string (spec, strlen (spec)));
1302 /* Free the old spec */
1303 if (old_spec && sl->alloc_p)
1309 /* Accumulate a command (program name and args), and run it. */
1311 /* Vector of pointers to arguments in the current line of specifications. */
1313 static char **argbuf;
1315 /* Number of elements allocated in argbuf. */
1317 static int argbuf_length;
1319 /* Number of elements in argbuf currently in use (containing args). */
1321 static int argbuf_index;
1323 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1324 temp file. Used only if MKTEMP_EACH_FILE. */
1326 static struct temp_name {
1327 char *suffix; /* suffix associated with the code. */
1328 int length; /* strlen (suffix). */
1329 int unique; /* Indicates whether %g or %u/%U was used. */
1330 char *filename; /* associated filename. */
1331 int filename_length; /* strlen (filename). */
1332 struct temp_name *next;
1335 /* Number of commands executed so far. */
1337 static int execution_count;
1339 /* Number of commands that exited with a signal. */
1341 static int signal_count;
1343 /* Name with which this program was invoked. */
1345 static char *programname;
1347 /* Structures to keep track of prefixes to try when looking for files. */
1351 char *prefix; /* String to prepend to the path. */
1352 struct prefix_list *next; /* Next in linked list. */
1353 int require_machine_suffix; /* Don't use without machine_suffix. */
1354 /* 2 means try both machine_suffix and just_machine_suffix. */
1355 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1360 struct prefix_list *plist; /* List of prefixes to try */
1361 int max_len; /* Max length of a prefix in PLIST */
1362 char *name; /* Name of this list (used in config stuff) */
1365 /* List of prefixes to try when looking for executables. */
1367 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1369 /* List of prefixes to try when looking for startup (crt0) files. */
1371 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1373 /* List of prefixes to try when looking for include files. */
1375 static struct path_prefix include_prefixes = { 0, 0, "include" };
1377 /* Suffix to attach to directories searched for commands.
1378 This looks like `MACHINE/VERSION/'. */
1380 static char *machine_suffix = 0;
1382 /* Suffix to attach to directories searched for commands.
1383 This is just `MACHINE/'. */
1385 static char *just_machine_suffix = 0;
1387 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1389 static char *gcc_exec_prefix;
1391 /* Default prefixes to attach to command names. */
1393 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1394 #undef MD_EXEC_PREFIX
1395 #undef MD_STARTFILE_PREFIX
1396 #undef MD_STARTFILE_PREFIX_1
1399 #ifndef STANDARD_EXEC_PREFIX
1400 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1401 #endif /* !defined STANDARD_EXEC_PREFIX */
1403 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1404 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1405 #ifdef MD_EXEC_PREFIX
1406 static char *md_exec_prefix = MD_EXEC_PREFIX;
1409 #ifndef STANDARD_STARTFILE_PREFIX
1410 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1411 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1413 #ifdef MD_STARTFILE_PREFIX
1414 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1416 #ifdef MD_STARTFILE_PREFIX_1
1417 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1419 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1420 static char *standard_startfile_prefix_1 = "/lib/";
1421 static char *standard_startfile_prefix_2 = "/usr/lib/";
1423 #ifndef TOOLDIR_BASE_PREFIX
1424 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1426 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1427 static char *tooldir_prefix;
1429 /* Subdirectory to use for locating libraries. Set by
1430 set_multilib_dir based on the compilation options. */
1432 static char *multilib_dir;
1434 /* Clear out the vector of arguments (after a command is executed). */
1442 /* Add one argument to the vector at the end.
1443 This is done when a space is seen or at the end of the line.
1444 If DELETE_ALWAYS is nonzero, the arg is a filename
1445 and the file should be deleted eventually.
1446 If DELETE_FAILURE is nonzero, the arg is a filename
1447 and the file should be deleted if this compilation fails. */
1450 store_arg (arg, delete_always, delete_failure)
1452 int delete_always, delete_failure;
1454 if (argbuf_index + 1 == argbuf_length)
1456 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1459 argbuf[argbuf_index++] = arg;
1460 argbuf[argbuf_index] = 0;
1462 if (delete_always || delete_failure)
1463 record_temp_file (arg, delete_always, delete_failure);
1466 /* Record the names of temporary files we tell compilers to write,
1467 and delete them at the end of the run. */
1469 /* This is the common prefix we use to make temp file names.
1470 It is chosen once for each run of this program.
1471 It is substituted into a spec by %g.
1472 Thus, all temp file names contain this prefix.
1473 In practice, all temp file names start with this prefix.
1475 This prefix comes from the envvar TMPDIR if it is defined;
1476 otherwise, from the P_tmpdir macro if that is defined;
1477 otherwise, in /usr/tmp or /tmp;
1478 or finally the current directory if all else fails. */
1480 static char *temp_filename;
1482 /* Length of the prefix. */
1484 static int temp_filename_length;
1486 /* Define the list of temporary files to delete. */
1491 struct temp_file *next;
1494 /* Queue of files to delete on success or failure of compilation. */
1495 static struct temp_file *always_delete_queue;
1496 /* Queue of files to delete on failure of compilation. */
1497 static struct temp_file *failure_delete_queue;
1499 /* Record FILENAME as a file to be deleted automatically.
1500 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1501 otherwise delete it in any case.
1502 FAIL_DELETE nonzero means delete it if a compilation step fails;
1503 otherwise delete it in any case. */
1506 record_temp_file (filename, always_delete, fail_delete)
1511 register char *name;
1512 name = xmalloc (strlen (filename) + 1);
1513 strcpy (name, filename);
1517 register struct temp_file *temp;
1518 for (temp = always_delete_queue; temp; temp = temp->next)
1519 if (! strcmp (name, temp->name))
1521 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1522 temp->next = always_delete_queue;
1524 always_delete_queue = temp;
1530 register struct temp_file *temp;
1531 for (temp = failure_delete_queue; temp; temp = temp->next)
1532 if (! strcmp (name, temp->name))
1534 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1535 temp->next = failure_delete_queue;
1537 failure_delete_queue = temp;
1542 /* Delete all the temporary files whose names we previously recorded. */
1545 delete_if_ordinary (name)
1552 printf ("Delete %s? (y or n) ", name);
1556 while ((c = getchar ()) != '\n' && c != EOF) ;
1557 if (i == 'y' || i == 'Y')
1559 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1560 if (unlink (name) < 0)
1562 perror_with_name (name);
1566 delete_temp_files ()
1568 register struct temp_file *temp;
1570 for (temp = always_delete_queue; temp; temp = temp->next)
1571 delete_if_ordinary (temp->name);
1572 always_delete_queue = 0;
1575 /* Delete all the files to be deleted on error. */
1578 delete_failure_queue ()
1580 register struct temp_file *temp;
1582 for (temp = failure_delete_queue; temp; temp = temp->next)
1583 delete_if_ordinary (temp->name);
1587 clear_failure_queue ()
1589 failure_delete_queue = 0;
1592 /* Routine to add variables to the environment. We do this to pass
1593 the pathname of the gcc driver, and the directories search to the
1594 collect2 program, which is being run as ld. This way, we can be
1595 sure of executing the right compiler when collect2 wants to build
1596 constructors and destructors. Since the environment variables we
1597 use come from an obstack, we don't have to worry about allocating
1606 #ifndef VMS /* nor about VMS */
1608 extern char **environ;
1609 char **old_environ = environ;
1613 int str_len = strlen (str);
1617 while ((ch = *p++) != '\0' && ch != '=')
1623 /* Search for replacing an existing environment variable, and
1624 count the number of total environment variables. */
1625 for (envp = old_environ; *envp; envp++)
1628 if (!strncmp (str, *envp, name_len))
1635 /* Add a new environment variable */
1636 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1638 bcopy ((char *) old_environ, (char *) (environ + 1),
1639 sizeof (char *) * (num_envs+1));
1644 #endif /* HAVE_PUTENV */
1647 /* Build a list of search directories from PATHS.
1648 PREFIX is a string to prepend to the list.
1649 If CHECK_DIR_P is non-zero we ensure the directory exists.
1650 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1651 It is also used by the --print-search-dirs flag. */
1654 build_search_list (paths, prefix, check_dir_p)
1655 struct path_prefix *paths;
1659 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1661 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1662 int first_time = TRUE;
1663 struct prefix_list *pprefix;
1665 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1667 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1669 int len = strlen (pprefix->prefix);
1673 || is_directory (pprefix->prefix, machine_suffix, 0)))
1676 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1679 obstack_grow (&collect_obstack, pprefix->prefix, len);
1680 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1683 if (just_machine_suffix
1684 && pprefix->require_machine_suffix == 2
1686 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1689 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1692 obstack_grow (&collect_obstack, pprefix->prefix, len);
1693 obstack_grow (&collect_obstack, just_machine_suffix,
1697 if (!pprefix->require_machine_suffix)
1700 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1703 obstack_grow (&collect_obstack, pprefix->prefix, len);
1706 obstack_1grow (&collect_obstack, '\0');
1707 return obstack_finish (&collect_obstack);
1710 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1714 putenv_from_prefixes (paths, env_var)
1715 struct path_prefix *paths;
1718 putenv (build_search_list (paths, env_var, 1));
1721 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1722 access to check permissions.
1723 Return 0 if not found, otherwise return its name, allocated with malloc. */
1726 find_a_file (pprefix, name, mode)
1727 struct path_prefix *pprefix;
1732 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1733 struct prefix_list *pl;
1734 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1737 len += strlen (machine_suffix);
1739 temp = xmalloc (len);
1741 /* Determine the filename to execute (special case for absolute paths). */
1743 if (*name == '/' || *name == DIR_SEPARATOR)
1745 if (access (name, mode))
1747 strcpy (temp, name);
1752 for (pl = pprefix->plist; pl; pl = pl->next)
1756 /* Some systems have a suffix for executable files.
1757 So try appending that first. */
1758 if (file_suffix[0] != 0)
1760 strcpy (temp, pl->prefix);
1761 strcat (temp, machine_suffix);
1762 strcat (temp, name);
1763 strcat (temp, file_suffix);
1764 if (access (temp, mode) == 0)
1766 if (pl->used_flag_ptr != 0)
1767 *pl->used_flag_ptr = 1;
1772 /* Now try just the name. */
1773 strcpy (temp, pl->prefix);
1774 strcat (temp, machine_suffix);
1775 strcat (temp, name);
1776 if (access (temp, mode) == 0)
1778 if (pl->used_flag_ptr != 0)
1779 *pl->used_flag_ptr = 1;
1784 /* Certain prefixes are tried with just the machine type,
1785 not the version. This is used for finding as, ld, etc. */
1786 if (just_machine_suffix && pl->require_machine_suffix == 2)
1788 /* Some systems have a suffix for executable files.
1789 So try appending that first. */
1790 if (file_suffix[0] != 0)
1792 strcpy (temp, pl->prefix);
1793 strcat (temp, just_machine_suffix);
1794 strcat (temp, name);
1795 strcat (temp, file_suffix);
1796 if (access (temp, mode) == 0)
1798 if (pl->used_flag_ptr != 0)
1799 *pl->used_flag_ptr = 1;
1804 strcpy (temp, pl->prefix);
1805 strcat (temp, just_machine_suffix);
1806 strcat (temp, name);
1807 if (access (temp, mode) == 0)
1809 if (pl->used_flag_ptr != 0)
1810 *pl->used_flag_ptr = 1;
1815 /* Certain prefixes can't be used without the machine suffix
1816 when the machine or version is explicitly specified. */
1817 if (!pl->require_machine_suffix)
1819 /* Some systems have a suffix for executable files.
1820 So try appending that first. */
1821 if (file_suffix[0] != 0)
1823 strcpy (temp, pl->prefix);
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, name);
1836 if (access (temp, mode) == 0)
1838 if (pl->used_flag_ptr != 0)
1839 *pl->used_flag_ptr = 1;
1849 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1850 at the start of the list, otherwise it goes at the end.
1852 If WARN is nonzero, we will warn if no file is found
1853 through this prefix. WARN should point to an int
1854 which will be set to 1 if this entry is used.
1856 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1857 the complete value of machine_suffix.
1858 2 means try both machine_suffix and just_machine_suffix. */
1861 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1862 struct path_prefix *pprefix;
1865 int require_machine_suffix;
1868 struct prefix_list *pl, **prev;
1871 if (!first && pprefix->plist)
1873 for (pl = pprefix->plist; pl->next; pl = pl->next)
1878 prev = &pprefix->plist;
1880 /* Keep track of the longest prefix */
1882 len = strlen (prefix);
1883 if (len > pprefix->max_len)
1884 pprefix->max_len = len;
1886 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1887 pl->prefix = save_string (prefix, len);
1888 pl->require_machine_suffix = require_machine_suffix;
1889 pl->used_flag_ptr = warn;
1896 pl->next = (struct prefix_list *) 0;
1900 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1903 unused_prefix_warnings (pprefix)
1904 struct path_prefix *pprefix;
1906 struct prefix_list *pl = pprefix->plist;
1910 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1912 if (pl->require_machine_suffix && machine_suffix)
1913 error ("file path prefix `%s%s' never used", pl->prefix,
1916 error ("file path prefix `%s' never used", pl->prefix);
1918 /* Prevent duplicate warnings. */
1919 *pl->used_flag_ptr = 1;
1925 /* Get rid of all prefixes built up so far in *PLISTP. */
1928 free_path_prefix (pprefix)
1929 struct path_prefix *pprefix;
1931 struct prefix_list *pl = pprefix->plist;
1932 struct prefix_list *temp;
1938 free (temp->prefix);
1939 free ((char *) temp);
1941 pprefix->plist = (struct prefix_list *) 0;
1944 /* Execute the command specified by the arguments on the current line of spec.
1945 When using pipes, this includes several piped-together commands
1946 with `|' between them.
1948 Return 0 if successful, -1 if failed. */
1954 int n_commands; /* # of command. */
1958 char *prog; /* program name. */
1959 char **argv; /* vector of args. */
1960 int pid; /* pid of process for this command. */
1963 struct command *commands; /* each command buffer with above info. */
1965 /* Count # of piped commands. */
1966 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1967 if (strcmp (argbuf[i], "|") == 0)
1970 /* Get storage for each command. */
1972 = (struct command *) alloca (n_commands * sizeof (struct command));
1974 /* Split argbuf into its separate piped processes,
1975 and record info about each one.
1976 Also search for the programs that are to be run. */
1978 commands[0].prog = argbuf[0]; /* first command. */
1979 commands[0].argv = &argbuf[0];
1980 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1982 commands[0].argv[0] = string;
1984 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1985 if (strcmp (argbuf[i], "|") == 0)
1986 { /* each command. */
1987 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1988 fatal ("-pipe not supported");
1990 argbuf[i] = 0; /* termination of command args. */
1991 commands[n_commands].prog = argbuf[i + 1];
1992 commands[n_commands].argv = &argbuf[i + 1];
1993 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1995 commands[n_commands].argv[0] = string;
1999 argbuf[argbuf_index] = 0;
2001 /* If -v, print what we are about to do, and maybe query. */
2005 /* Print each piped command as a separate line. */
2006 for (i = 0; i < n_commands ; i++)
2010 for (j = commands[i].argv; *j; j++)
2011 fprintf (stderr, " %s", *j);
2013 /* Print a pipe symbol after all but the last command. */
2014 if (i + 1 != n_commands)
2015 fprintf (stderr, " |");
2016 fprintf (stderr, "\n");
2020 fprintf (stderr, "\nGo ahead? (y or n) ");
2024 while (getchar () != '\n') ;
2025 if (i != 'y' && i != 'Y')
2030 /* Run each piped subprocess. */
2032 for (i = 0; i < n_commands; i++)
2034 char *errmsg_fmt, *errmsg_arg;
2035 char *string = commands[i].argv[0];
2037 commands[i].pid = pexecute (string, commands[i].argv,
2038 programname, temp_filename,
2039 &errmsg_fmt, &errmsg_arg,
2040 ((i == 0 ? PEXECUTE_FIRST : 0)
2041 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2042 | (string == commands[i].prog
2043 ? PEXECUTE_SEARCH : 0)
2044 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2046 if (commands[i].pid == -1)
2047 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2049 if (string != commands[i].prog)
2055 /* Wait for all the subprocesses to finish.
2056 We don't care what order they finish in;
2057 we know that N_COMMANDS waits will get them all.
2058 Ignore subprocesses that we don't know about,
2059 since they can be spawned by the process that exec'ed us. */
2064 for (i = 0; i < n_commands; )
2070 pid = pwait (commands[i].pid, &status, 0);
2074 for (j = 0; j < n_commands; j++)
2075 if (commands[j].pid == pid)
2080 if (WIFSIGNALED (status))
2082 fatal ("Internal compiler error: program %s got fatal signal %d",
2083 commands[j].prog, WTERMSIG (status));
2087 else if (WIFEXITED (status)
2088 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2098 /* Find all the switches given to us
2099 and make a vector describing them.
2100 The elements of the vector are strings, one per switch given.
2101 If a switch uses following arguments, then the `part1' field
2102 is the switch itself and the `args' field
2103 is a null-terminated vector containing the following arguments.
2104 The `live_cond' field is 1 if the switch is true in a conditional spec,
2105 -1 if false (overridden by a later switch), and is initialized to zero.
2106 The `valid' field is nonzero if any spec has looked at this switch;
2107 if it remains zero at the end of the run, it must be meaningless. */
2117 static struct switchstr *switches;
2119 static int n_switches;
2127 /* Also a vector of input files specified. */
2129 static struct infile *infiles;
2131 static int n_infiles;
2133 /* And a vector of corresponding output files is made up later. */
2135 static char **outfiles;
2137 /* Used to track if none of the -B paths are used. */
2140 /* Used to track if standard path isn't used and -b or -V is specified. */
2141 static int warn_std;
2143 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2144 static int *warn_std_ptr = 0;
2147 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2149 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2150 is true if we should look for an executable suffix as well. */
2153 convert_filename (name, do_exe)
2158 int len = strlen (name);
2160 #ifdef HAVE_OBJECT_SUFFIX
2161 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2163 && name[len - 2] == '.'
2164 && name[len - 1] == 'o')
2166 obstack_grow (&obstack, name[i], len - 2);
2167 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2168 name = obstack_finish (&obstack);
2172 #ifdef HAVE_EXECUTABLE_SUFFIX
2173 /* If there is no filetype, make it the executable suffix (which includes
2174 the "."). But don't get confused if we have just "-o". */
2175 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2178 for (i = len - 1; i >= 0; i--)
2179 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2182 for (i++; i < len; i++)
2186 obstack_grow (&obstack, name, len);
2187 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2188 name = obstack_finish (&obstack);
2195 /* Create the vector `switches' and its contents.
2196 Store its length in `n_switches'. */
2199 process_command (argc, argv)
2205 char *spec_lang = 0;
2206 int last_language_n_infiles;
2209 int lang_n_infiles = 0;
2211 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2216 /* Figure compiler version from version string. */
2218 compiler_version = save_string (version_string, strlen (version_string));
2219 for (temp = compiler_version; *temp; ++temp)
2228 /* Set up the default search paths. */
2230 if (gcc_exec_prefix)
2232 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2233 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2236 /* COMPILER_PATH and LIBRARY_PATH have values
2237 that are lists of directory names with colons. */
2239 temp = getenv ("COMPILER_PATH");
2242 char *startp, *endp;
2243 char *nstore = (char *) alloca (strlen (temp) + 3);
2245 startp = endp = temp;
2248 if (*endp == PATH_SEPARATOR || *endp == 0)
2250 strncpy (nstore, startp, endp-startp);
2252 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2253 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2255 nstore[endp-startp] = DIR_SEPARATOR;
2256 nstore[endp-startp+1] = 0;
2259 nstore[endp-startp] = 0;
2260 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2263 endp = startp = endp + 1;
2270 temp = getenv ("LIBRARY_PATH");
2271 if (temp && *cross_compile != '0')
2273 char *startp, *endp;
2274 char *nstore = (char *) alloca (strlen (temp) + 3);
2276 startp = endp = temp;
2279 if (*endp == PATH_SEPARATOR || *endp == 0)
2281 strncpy (nstore, startp, endp-startp);
2283 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2284 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2286 nstore[endp-startp] = DIR_SEPARATOR;
2287 nstore[endp-startp+1] = 0;
2290 nstore[endp-startp] = 0;
2291 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2294 endp = startp = endp + 1;
2301 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2302 temp = getenv ("LPATH");
2303 if (temp && *cross_compile != '0')
2305 char *startp, *endp;
2306 char *nstore = (char *) alloca (strlen (temp) + 3);
2308 startp = endp = temp;
2311 if (*endp == PATH_SEPARATOR || *endp == 0)
2313 strncpy (nstore, startp, endp-startp);
2315 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2316 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2318 nstore[endp-startp] = DIR_SEPARATOR;
2319 nstore[endp-startp+1] = 0;
2322 nstore[endp-startp] = 0;
2323 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2326 endp = startp = endp + 1;
2333 /* Convert new-style -- options to old-style. */
2334 translate_options (&argc, &argv);
2336 #ifdef LANG_SPECIFIC_DRIVER
2337 /* Do language-specific adjustment/addition of flags. */
2338 lang_specific_driver (&fatal, &argc, &argv);
2341 /* Scan argv twice. Here, the first time, just count how many switches
2342 there will be in their vector, and how many input files in theirs.
2343 Here we also parse the switches that cc itself uses (e.g. -v). */
2345 for (i = 1; i < argc; i++)
2347 if (! strcmp (argv[i], "-dumpspecs"))
2349 struct spec_list *sl;
2351 for (sl = specs; sl; sl = sl->next)
2352 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2355 else if (! strcmp (argv[i], "-dumpversion"))
2357 printf ("%s\n", version_string);
2360 else if (! strcmp (argv[i], "-dumpmachine"))
2362 printf ("%s\n", spec_machine);
2365 else if (! strcmp (argv[i], "-print-search-dirs"))
2366 print_search_dirs = 1;
2367 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2368 print_file_name = "libgcc.a";
2369 else if (! strncmp (argv[i], "-print-file-name=", 17))
2370 print_file_name = argv[i] + 17;
2371 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2372 print_prog_name = argv[i] + 17;
2373 else if (! strcmp (argv[i], "-print-multi-lib"))
2374 print_multi_lib = 1;
2375 else if (! strcmp (argv[i], "-print-multi-directory"))
2376 print_multi_directory = 1;
2377 else if (! strncmp (argv[i], "-Wa,", 4))
2380 /* Pass the rest of this option to the assembler. */
2382 n_assembler_options++;
2383 if (!assembler_options)
2385 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2388 = (char **) xrealloc (assembler_options,
2389 n_assembler_options * sizeof (char **));
2391 /* Split the argument at commas. */
2393 for (j = 4; argv[i][j]; j++)
2394 if (argv[i][j] == ',')
2396 assembler_options[n_assembler_options - 1]
2397 = save_string (argv[i] + prev, j - prev);
2398 n_assembler_options++;
2400 = (char **) xrealloc (assembler_options,
2401 n_assembler_options * sizeof (char **));
2404 /* Record the part after the last comma. */
2405 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2407 else if (! strncmp (argv[i], "-Wp,", 4))
2410 /* Pass the rest of this option to the preprocessor. */
2412 n_preprocessor_options++;
2413 if (!preprocessor_options)
2414 preprocessor_options
2415 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2417 preprocessor_options
2418 = (char **) xrealloc (preprocessor_options,
2419 n_preprocessor_options * sizeof (char **));
2421 /* Split the argument at commas. */
2423 for (j = 4; argv[i][j]; j++)
2424 if (argv[i][j] == ',')
2426 preprocessor_options[n_preprocessor_options - 1]
2427 = save_string (argv[i] + prev, j - prev);
2428 n_preprocessor_options++;
2429 preprocessor_options
2430 = (char **) xrealloc (preprocessor_options,
2431 n_preprocessor_options * sizeof (char **));
2434 /* Record the part after the last comma. */
2435 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2437 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2438 /* The +e options to the C++ front-end. */
2440 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2443 /* Split the argument at commas. */
2444 for (j = 3; argv[i][j]; j++)
2445 n_infiles += (argv[i][j] == ',');
2447 else if (strcmp (argv[i], "-Xlinker") == 0)
2450 fatal ("argument to `-Xlinker' is missing");
2455 else if (strncmp (argv[i], "-l", 2) == 0)
2457 else if (strcmp (argv[i], "-save-temps") == 0)
2459 save_temps_flag = 1;
2462 else if (strcmp (argv[i], "-specs") == 0)
2464 struct user_specs *user = (struct user_specs *)
2465 xmalloc (sizeof (struct user_specs));
2467 fatal ("argument to `-specs' is missing");
2469 user->next = (struct user_specs *)0;
2470 user->filename = argv[i];
2471 if (user_specs_tail)
2472 user_specs_tail->next = user;
2474 user_specs_head = user;
2475 user_specs_tail = user;
2477 else if (strncmp (argv[i], "-specs=", 7) == 0)
2479 struct user_specs *user = (struct user_specs *)
2480 xmalloc (sizeof (struct user_specs));
2481 if (strlen (argv[i]) == 7)
2482 fatal ("argument to `-specs=' is missing");
2484 user->next = (struct user_specs *)0;
2485 user->filename = argv[i]+7;
2486 if (user_specs_tail)
2487 user_specs_tail->next = user;
2489 user_specs_head = user;
2490 user_specs_tail = user;
2492 else if (argv[i][0] == '-' && argv[i][1] != 0)
2494 register char *p = &argv[i][1];
2495 register int c = *p;
2500 if (p[1] == 0 && i + 1 == argc)
2501 fatal ("argument to `-b' is missing");
2503 spec_machine = argv[++i];
2505 spec_machine = p + 1;
2507 warn_std_ptr = &warn_std;
2512 int *temp = (int *) xmalloc (sizeof (int));
2514 if (p[1] == 0 && i + 1 == argc)
2515 fatal ("argument to `-B' is missing");
2520 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2521 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2522 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2525 /* As a kludge, if the arg is "[foo/]stageN/", just add
2526 "[foo/]include" to the include prefix. */
2528 int len = strlen (value);
2531 && (value[len - 8] == '/'
2532 || value[len - 8] == DIR_SEPARATOR)))
2533 && strncmp (value + len - 7, "stage", 5) == 0
2534 && isdigit (value[len - 2])
2535 && (value[len - 1] == '/'
2536 || value[len - 1] == DIR_SEPARATOR))
2539 add_prefix (&include_prefixes, "include",
2543 char *string = xmalloc (len + 1);
2544 strncpy (string, value, len-7);
2545 strcat (string, "include");
2546 add_prefix (&include_prefixes, string,
2554 case 'v': /* Print our subcommands and print versions. */
2556 /* If they do anything other than exactly `-v', don't set
2557 verbose_flag; rather, continue on to give the error. */
2564 if (p[1] == 0 && i + 1 == argc)
2565 fatal ("argument to `-V' is missing");
2567 spec_version = argv[++i];
2569 spec_version = p + 1;
2570 compiler_version = spec_version;
2571 warn_std_ptr = &warn_std;
2585 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2586 argv[i] = convert_filename (argv[i], 1);
2588 argv[i+1] = convert_filename (argv[i+1], 1);
2596 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2597 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2598 else if (WORD_SWITCH_TAKES_ARG (p))
2599 i += WORD_SWITCH_TAKES_ARG (p);
2609 if (have_c && have_o && lang_n_infiles > 1)
2610 fatal ("cannot specify -o with -c and multiple compilations");
2612 /* Set up the search paths before we go looking for config files. */
2614 /* These come before the md prefixes so that we will find gcc's subcommands
2615 (such as cpp) rather than those of the host system. */
2616 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2617 as well as trying the machine and the version. */
2619 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2620 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2623 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2624 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2626 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2627 dir_separator_str, NULL_PTR);
2629 /* If tooldir is relative, base it on exec_prefixes. A relative
2630 tooldir lets us move the installed tree as a unit.
2632 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2633 directories, so that we can search both the user specified directory
2634 and the standard place. */
2636 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2638 if (gcc_exec_prefix)
2640 char *gcc_exec_tooldir_prefix
2641 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2642 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2644 add_prefix (&exec_prefixes,
2645 concat (gcc_exec_tooldir_prefix, "bin",
2646 dir_separator_str, NULL_PTR),
2648 add_prefix (&startfile_prefixes,
2649 concat (gcc_exec_tooldir_prefix, "lib",
2650 dir_separator_str, NULL_PTR),
2654 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2655 dir_separator_str, spec_version,
2656 dir_separator_str, tooldir_prefix, NULL_PTR);
2659 add_prefix (&exec_prefixes,
2660 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2662 add_prefix (&startfile_prefixes,
2663 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2666 /* More prefixes are enabled in main, after we read the specs file
2667 and determine whether this is cross-compilation or not. */
2670 /* Then create the space for the vectors and scan again. */
2672 switches = ((struct switchstr *)
2673 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2674 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2677 last_language_n_infiles = -1;
2679 /* This, time, copy the text of each switch and store a pointer
2680 to the copy in the vector of switches.
2681 Store all the infiles in their vector. */
2683 for (i = 1; i < argc; i++)
2685 /* Just skip the switches that were handled by the preceding loop. */
2686 if (! strncmp (argv[i], "-Wa,", 4))
2688 else if (! strncmp (argv[i], "-Wp,", 4))
2690 else if (! strcmp (argv[i], "-print-search-dirs"))
2692 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2694 else if (! strncmp (argv[i], "-print-file-name=", 17))
2696 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2698 else if (! strcmp (argv[i], "-print-multi-lib"))
2700 else if (! strcmp (argv[i], "-print-multi-directory"))
2702 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2704 /* Compensate for the +e options to the C++ front-end;
2705 they're there simply for cfront call-compatibility. We do
2706 some magic in default_compilers to pass them down properly.
2707 Note we deliberately start at the `+' here, to avoid passing
2708 -e0 or -e1 down into the linker. */
2709 switches[n_switches].part1 = &argv[i][0];
2710 switches[n_switches].args = 0;
2711 switches[n_switches].live_cond = 0;
2712 switches[n_switches].valid = 0;
2715 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2718 /* Split the argument at commas. */
2720 for (j = 4; argv[i][j]; j++)
2721 if (argv[i][j] == ',')
2723 infiles[n_infiles].language = 0;
2724 infiles[n_infiles++].name
2725 = save_string (argv[i] + prev, j - prev);
2728 /* Record the part after the last comma. */
2729 infiles[n_infiles].language = 0;
2730 infiles[n_infiles++].name = argv[i] + prev;
2732 else if (strcmp (argv[i], "-Xlinker") == 0)
2734 infiles[n_infiles].language = 0;
2735 infiles[n_infiles++].name = argv[++i];
2737 else if (strncmp (argv[i], "-l", 2) == 0)
2739 infiles[n_infiles].language = 0;
2740 infiles[n_infiles++].name = argv[i];
2742 else if (strcmp (argv[i], "-specs") == 0)
2744 else if (strncmp (argv[i], "-specs=", 7) == 0)
2746 else if (argv[i][0] == '-' && argv[i][1] != 0)
2748 register char *p = &argv[i][1];
2749 register int c = *p;
2751 if (c == 'B' || c == 'b' || c == 'V')
2753 /* Skip a separate arg, if any. */
2760 if (p[1] == 0 && i + 1 == argc)
2761 fatal ("argument to `-x' is missing");
2763 spec_lang = argv[++i];
2766 if (! strcmp (spec_lang, "none"))
2767 /* Suppress the warning if -xnone comes after the last input
2768 file, because alternate command interfaces like g++ might
2769 find it useful to place -xnone after each input file. */
2772 last_language_n_infiles = n_infiles;
2775 switches[n_switches].part1 = p;
2776 /* Deal with option arguments in separate argv elements. */
2777 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2778 || WORD_SWITCH_TAKES_ARG (p))
2781 int n_args = WORD_SWITCH_TAKES_ARG (p);
2785 /* Count only the option arguments in separate argv elements. */
2786 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2788 if (i + n_args >= argc)
2789 fatal ("argument to `-%s' is missing", p);
2790 switches[n_switches].args
2791 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2793 switches[n_switches].args[j++] = argv[++i];
2794 /* Null-terminate the vector. */
2795 switches[n_switches].args[j] = 0;
2797 else if (index (switches_need_spaces, c))
2799 /* On some systems, ld cannot handle some options without
2800 a space. So split the option from its argument. */
2801 char *part1 = (char *) xmalloc (2);
2805 switches[n_switches].part1 = part1;
2806 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2807 switches[n_switches].args[0] = xmalloc (strlen (p));
2808 strcpy (switches[n_switches].args[0], &p[1]);
2809 switches[n_switches].args[1] = 0;
2812 switches[n_switches].args = 0;
2814 switches[n_switches].live_cond = 0;
2815 switches[n_switches].valid = 0;
2816 /* This is always valid, since gcc.c itself understands it. */
2817 if (!strcmp (p, "save-temps"))
2818 switches[n_switches].valid = 1;
2823 #ifdef HAVE_OBJECT_SUFFIX
2824 argv[i] = convert_filename (argv[i], 0);
2827 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2829 perror_with_name (argv[i]);
2834 infiles[n_infiles].language = spec_lang;
2835 infiles[n_infiles++].name = argv[i];
2840 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2841 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2843 switches[n_switches].part1 = 0;
2844 infiles[n_infiles].name = 0;
2847 /* Process a spec string, accumulating and running commands. */
2849 /* These variables describe the input file name.
2850 input_file_number is the index on outfiles of this file,
2851 so that the output file name can be stored for later use by %o.
2852 input_basename is the start of the part of the input file
2853 sans all directory names, and basename_length is the number
2854 of characters starting there excluding the suffix .c or whatever. */
2856 static char *input_filename;
2857 static int input_file_number;
2858 static int input_filename_length;
2859 static int basename_length;
2860 static char *input_basename;
2861 static char *input_suffix;
2863 /* These are variables used within do_spec and do_spec_1. */
2865 /* Nonzero if an arg has been started and not yet terminated
2866 (with space, tab or newline). */
2867 static int arg_going;
2869 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2870 is a temporary file name. */
2871 static int delete_this_arg;
2873 /* Nonzero means %w has been seen; the next arg to be terminated
2874 is the output file name of this compilation. */
2875 static int this_is_output_file;
2877 /* Nonzero means %s has been seen; the next arg to be terminated
2878 is the name of a library file and we should try the standard
2879 search dirs for it. */
2880 static int this_is_library_file;
2882 /* Nonzero means that the input of this command is coming from a pipe. */
2883 static int input_from_pipe;
2885 /* Process the spec SPEC and run the commands specified therein.
2886 Returns 0 if the spec is successfully processed; -1 if failed. */
2896 delete_this_arg = 0;
2897 this_is_output_file = 0;
2898 this_is_library_file = 0;
2899 input_from_pipe = 0;
2901 value = do_spec_1 (spec, 0, NULL_PTR);
2903 /* Force out any unfinished command.
2904 If -pipe, this forces out the last command if it ended in `|'. */
2907 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2910 if (argbuf_index > 0)
2917 /* Process the sub-spec SPEC as a portion of a larger spec.
2918 This is like processing a whole spec except that we do
2919 not initialize at the beginning and we do not supply a
2920 newline by default at the end.
2921 INSWITCH nonzero means don't process %-sequences in SPEC;
2922 in this case, % is treated as an ordinary character.
2923 This is used while substituting switches.
2924 INSWITCH nonzero also causes SPC not to terminate an argument.
2926 Value is zero unless a line was finished
2927 and the command on that line reported an error. */
2930 do_spec_1 (spec, inswitch, soft_matched_part)
2933 char *soft_matched_part;
2935 register char *p = spec;
2942 /* If substituting a switch, treat all chars like letters.
2943 Otherwise, NL, SPC, TAB and % are special. */
2944 switch (inswitch ? 'a' : c)
2947 /* End of line: finish any pending argument,
2948 then run the pending command if one has been started. */
2951 obstack_1grow (&obstack, 0);
2952 string = obstack_finish (&obstack);
2953 if (this_is_library_file)
2954 string = find_file (string);
2955 store_arg (string, delete_this_arg, this_is_output_file);
2956 if (this_is_output_file)
2957 outfiles[input_file_number] = string;
2961 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2963 for (i = 0; i < n_switches; i++)
2964 if (!strcmp (switches[i].part1, "pipe"))
2967 /* A `|' before the newline means use a pipe here,
2968 but only if -pipe was specified.
2969 Otherwise, execute now and don't pass the `|' as an arg. */
2972 input_from_pipe = 1;
2973 switches[i].valid = 1;
2980 if (argbuf_index > 0)
2986 /* Reinitialize for a new command, and for a new argument. */
2989 delete_this_arg = 0;
2990 this_is_output_file = 0;
2991 this_is_library_file = 0;
2992 input_from_pipe = 0;
2996 /* End any pending argument. */
2999 obstack_1grow (&obstack, 0);
3000 string = obstack_finish (&obstack);
3001 if (this_is_library_file)
3002 string = find_file (string);
3003 store_arg (string, delete_this_arg, this_is_output_file);
3004 if (this_is_output_file)
3005 outfiles[input_file_number] = string;
3009 obstack_1grow (&obstack, c);
3015 /* Space or tab ends an argument if one is pending. */
3018 obstack_1grow (&obstack, 0);
3019 string = obstack_finish (&obstack);
3020 if (this_is_library_file)
3021 string = find_file (string);
3022 store_arg (string, delete_this_arg, this_is_output_file);
3023 if (this_is_output_file)
3024 outfiles[input_file_number] = string;
3026 /* Reinitialize for a new argument. */
3028 delete_this_arg = 0;
3029 this_is_output_file = 0;
3030 this_is_library_file = 0;
3037 fatal ("Invalid specification! Bug in cc.");
3040 obstack_grow (&obstack, input_basename, basename_length);
3045 delete_this_arg = 2;
3048 /* Dump out the directories specified with LIBRARY_PATH,
3049 followed by the absolute directories
3050 that we search for startfiles. */
3053 struct prefix_list *pl = startfile_prefixes.plist;
3055 char *buffer = (char *) xmalloc (bufsize);
3058 for (; pl; pl = pl->next)
3060 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3061 /* Used on systems which record the specified -L dirs
3062 and use them to search for dynamic linking. */
3063 /* Relative directories always come from -B,
3064 and it is better not to use them for searching
3065 at run time. In particular, stage1 loses */
3066 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3069 /* Try subdirectory if there is one. */
3070 if (multilib_dir != NULL)
3074 if (strlen (pl->prefix) + strlen (machine_suffix)
3076 bufsize = (strlen (pl->prefix)
3077 + strlen (machine_suffix)) * 2 + 1;
3078 buffer = (char *) xrealloc (buffer, bufsize);
3079 strcpy (buffer, pl->prefix);
3080 strcat (buffer, machine_suffix);
3081 if (is_directory (buffer, multilib_dir, 1))
3083 do_spec_1 ("-L", 0, NULL_PTR);
3084 #ifdef SPACE_AFTER_L_OPTION
3085 do_spec_1 (" ", 0, NULL_PTR);
3087 do_spec_1 (buffer, 1, NULL_PTR);
3088 do_spec_1 (multilib_dir, 1, NULL_PTR);
3089 /* Make this a separate argument. */
3090 do_spec_1 (" ", 0, NULL_PTR);
3093 if (!pl->require_machine_suffix)
3095 if (is_directory (pl->prefix, multilib_dir, 1))
3097 do_spec_1 ("-L", 0, NULL_PTR);
3098 #ifdef SPACE_AFTER_L_OPTION
3099 do_spec_1 (" ", 0, NULL_PTR);
3101 do_spec_1 (pl->prefix, 1, NULL_PTR);
3102 do_spec_1 (multilib_dir, 1, NULL_PTR);
3103 /* Make this a separate argument. */
3104 do_spec_1 (" ", 0, NULL_PTR);
3110 if (is_directory (pl->prefix, machine_suffix, 1))
3112 do_spec_1 ("-L", 0, NULL_PTR);
3113 #ifdef SPACE_AFTER_L_OPTION
3114 do_spec_1 (" ", 0, NULL_PTR);
3116 do_spec_1 (pl->prefix, 1, NULL_PTR);
3117 /* Remove slash from machine_suffix. */
3118 if (strlen (machine_suffix) >= bufsize)
3119 bufsize = strlen (machine_suffix) * 2 + 1;
3120 buffer = (char *) xrealloc (buffer, bufsize);
3121 strcpy (buffer, machine_suffix);
3122 idx = strlen (buffer);
3123 if (buffer[idx - 1] == '/'
3124 || buffer[idx - 1] == DIR_SEPARATOR)
3125 buffer[idx - 1] = 0;
3126 do_spec_1 (buffer, 1, NULL_PTR);
3127 /* Make this a separate argument. */
3128 do_spec_1 (" ", 0, NULL_PTR);
3131 if (!pl->require_machine_suffix)
3133 if (is_directory (pl->prefix, "", 1))
3135 do_spec_1 ("-L", 0, NULL_PTR);
3136 #ifdef SPACE_AFTER_L_OPTION
3137 do_spec_1 (" ", 0, NULL_PTR);
3139 /* Remove slash from pl->prefix. */
3140 if (strlen (pl->prefix) >= bufsize)
3141 bufsize = strlen (pl->prefix) * 2 + 1;
3142 buffer = (char *) xrealloc (buffer, bufsize);
3143 strcpy (buffer, pl->prefix);
3144 idx = strlen (buffer);
3145 if (buffer[idx - 1] == '/'
3146 || buffer[idx - 1] == DIR_SEPARATOR)
3147 buffer[idx - 1] = 0;
3148 do_spec_1 (buffer, 1, NULL_PTR);
3149 /* Make this a separate argument. */
3150 do_spec_1 (" ", 0, NULL_PTR);
3159 /* {...:%efoo} means report an error with `foo' as error message
3160 and don't execute any more commands for this file. */
3164 while (*p != 0 && *p != '\n') p++;
3165 buf = (char *) alloca (p - q + 1);
3166 strncpy (buf, q, p - q);
3176 if (save_temps_flag)
3178 obstack_grow (&obstack, input_basename, basename_length);
3179 delete_this_arg = 0;
3183 #ifdef MKTEMP_EACH_FILE
3184 /* ??? This has a problem: the total number of
3185 values mktemp can return is limited.
3186 That matters for the names of object files.
3187 In 2.4, do something about that. */
3188 struct temp_name *t;
3190 while (*p == '.' || isalpha (*p)
3191 || (p[0] == '%' && p[1] == 'O'))
3194 /* See if we already have an association of %g/%u/%U and
3196 for (t = temp_names; t; t = t->next)
3197 if (t->length == p - suffix
3198 && strncmp (t->suffix, suffix, p - suffix) == 0
3199 && t->unique == (c != 'g'))
3202 /* Make a new association if needed. %u requires one. */
3203 if (t == 0 || c == 'u')
3207 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3208 t->next = temp_names;
3211 t->length = p - suffix;
3212 t->suffix = save_string (suffix, p - suffix);
3213 t->unique = (c != 'g');
3214 temp_filename = choose_temp_base ();
3215 temp_filename_length = strlen (temp_filename);
3216 t->filename = temp_filename;
3217 t->filename_length = temp_filename_length;
3220 obstack_grow (&obstack, t->filename, t->filename_length);
3221 delete_this_arg = 1;
3223 obstack_grow (&obstack, temp_filename, temp_filename_length);
3224 if (c == 'u' || c == 'U')
3230 sprintf (buff, "%d", unique);
3231 obstack_grow (&obstack, buff, strlen (buff));
3234 delete_this_arg = 1;
3240 obstack_grow (&obstack, input_filename, input_filename_length);
3246 struct prefix_list *pl = include_prefixes.plist;
3248 if (gcc_exec_prefix)
3250 do_spec_1 ("-iprefix", 1, NULL_PTR);
3251 /* Make this a separate argument. */
3252 do_spec_1 (" ", 0, NULL_PTR);
3253 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3254 do_spec_1 (" ", 0, NULL_PTR);
3257 for (; pl; pl = pl->next)
3259 do_spec_1 ("-isystem", 1, NULL_PTR);
3260 /* Make this a separate argument. */
3261 do_spec_1 (" ", 0, NULL_PTR);
3262 do_spec_1 (pl->prefix, 1, NULL_PTR);
3263 do_spec_1 (" ", 0, NULL_PTR);
3269 for (i = 0; i < n_infiles; i++)
3270 store_arg (outfiles[i], 0, 0);
3274 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3279 this_is_library_file = 1;
3283 this_is_output_file = 1;
3288 int cur_index = argbuf_index;
3289 /* Handle the {...} following the %W. */
3292 p = handle_braces (p + 1);
3295 /* If any args were output, mark the last one for deletion
3297 if (argbuf_index != cur_index)
3298 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3302 /* %x{OPTION} records OPTION for %X to output. */
3308 /* Skip past the option value and make a copy. */
3313 string = save_string (p1 + 1, p - p1 - 2);
3315 /* See if we already recorded this option. */
3316 for (i = 0; i < n_linker_options; i++)
3317 if (! strcmp (string, linker_options[i]))
3323 /* This option is new; add it. */
3325 if (!linker_options)
3327 = (char **) xmalloc (n_linker_options * sizeof (char **));
3330 = (char **) xrealloc (linker_options,
3331 n_linker_options * sizeof (char **));
3333 linker_options[n_linker_options - 1] = string;
3337 /* Dump out the options accumulated previously using %x. */
3339 for (i = 0; i < n_linker_options; i++)
3341 do_spec_1 (linker_options[i], 1, NULL_PTR);
3342 /* Make each accumulated option a separate argument. */
3343 do_spec_1 (" ", 0, NULL_PTR);
3347 /* Dump out the options accumulated previously using -Wa,. */
3349 for (i = 0; i < n_assembler_options; i++)
3351 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3352 /* Make each accumulated option a separate argument. */
3353 do_spec_1 (" ", 0, NULL_PTR);
3357 /* Dump out the options accumulated previously using -Wp,. */
3359 for (i = 0; i < n_preprocessor_options; i++)
3361 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3362 /* Make each accumulated option a separate argument. */
3363 do_spec_1 (" ", 0, NULL_PTR);
3367 /* Here are digits and numbers that just process
3368 a certain constant string as a spec. */
3371 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3377 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3383 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3389 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3395 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3401 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3407 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3413 value = do_spec_1 (link_spec, 0, NULL_PTR);
3419 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3425 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3432 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3436 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3440 if (! strncmp (y, "-D", 2))
3441 /* Copy the whole option. */
3442 while (*y && *y != ' ' && *y != '\t')
3444 else if (*y == ' ' || *y == '\t')
3445 /* Copy whitespace to the result. */
3447 /* Don't copy other options. */
3454 value = do_spec_1 (buf, 0, NULL_PTR);
3462 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3466 /* Copy all of CPP_PREDEFINES into BUF,
3467 but put __ after every -D and at the end of each arg. */
3471 if (! strncmp (y, "-D", 2))
3479 || (*(y+1) != '_' && ! isupper (*(y+1))))
3481 /* Stick __ at front of macro name. */
3484 /* Arrange to stick __ at the end as well. */
3488 /* Copy the macro name. */
3489 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3498 /* Copy the value given, if any. */
3499 while (*y && *y != ' ' && *y != '\t')
3502 else if (*y == ' ' || *y == '\t')
3503 /* Copy whitespace to the result. */
3505 /* Don't copy -A options */
3511 /* Copy all of CPP_PREDEFINES into BUF,
3512 but put __ after every -D. */
3516 if (! strncmp (y, "-D", 2))
3521 || (*(y+1) != '_' && ! isupper (*(y+1))))
3523 /* Stick -D__ at front of macro name. */
3529 /* Copy the macro name. */
3530 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3533 /* Copy the value given, if any. */
3534 while (*y && *y != ' ' && *y != '\t')
3539 /* Do not copy this macro - we have just done it before */
3540 while (*y && *y != ' ' && *y != '\t')
3544 else if (*y == ' ' || *y == '\t')
3545 /* Copy whitespace to the result. */
3547 /* Don't copy -A options */
3553 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3557 if (! strncmp (y, "-A", 2))
3558 /* Copy the whole option. */
3559 while (*y && *y != ' ' && *y != '\t')
3561 else if (*y == ' ' || *y == '\t')
3562 /* Copy whitespace to the result. */
3564 /* Don't copy other options. */
3571 value = do_spec_1 (buf, 0, NULL_PTR);
3578 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3583 /* Here we define characters other than letters and digits. */
3586 p = handle_braces (p);
3592 obstack_1grow (&obstack, '%');
3596 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3597 do_spec_1 (" ", 0, NULL_PTR);
3600 /* Process a string found as the value of a spec given by name.
3601 This feature allows individual machine descriptions
3602 to add and use their own specs.
3603 %[...] modifies -D options the way %P does;
3604 %(...) uses the spec unmodified. */
3609 struct spec_list *sl;
3612 /* The string after the S/P is the name of a spec that is to be
3614 while (*p && *p != ')' && *p != ']')
3617 /* See if it's in the list */
3618 for (len = p - name, sl = specs; sl; sl = sl->next)
3619 if (sl->name_len == len && !strncmp (sl->name, name, len))
3621 name = *(sl->ptr_spec);
3629 value = do_spec_1 (name, 0, NULL_PTR);
3635 char *x = (char *) alloca (strlen (name) * 2 + 1);
3639 /* Copy all of NAME into BUF, but put __ after
3640 every -D and at the end of each arg, */
3645 if (! strncmp (y, "-D", 2))
3655 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3656 || *y == '}' || *y == 0))
3669 value = do_spec_1 (buf, 0, NULL_PTR);
3675 /* Discard the closing paren or bracket. */
3683 int c1 = *p++; /* Select first or second version number. */
3684 char *v = compiler_version;
3687 /* The format of the version string is
3688 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3690 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3691 while (! isdigit (*v))
3693 if (v > compiler_version && v[-1] != '-')
3696 /* If desired, advance to second version number. */
3699 /* Set V after the first period. */
3700 while (isdigit (*v))
3707 /* Set Q at the next period or at the end. */
3709 while (isdigit (*q))
3711 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3714 /* Put that part into the command. */
3715 obstack_grow (&obstack, v, q - v);
3721 if (input_from_pipe)
3722 do_spec_1 ("-", 0, NULL_PTR);
3731 /* Backslash: treat next character as ordinary. */
3736 /* Ordinary character: put it into the current argument. */
3737 obstack_1grow (&obstack, c);
3741 return 0; /* End of string */
3744 /* Return 0 if we call do_spec_1 and that returns -1. */
3755 int include_blanks = 1;
3758 /* A '^' after the open-brace means to not give blanks before args. */
3759 include_blanks = 0, ++p;
3762 /* A `|' after the open-brace means,
3763 if the test fails, output a single minus sign rather than nothing.
3764 This is used in %{|!pipe:...}. */
3768 /* A `!' after the open-brace negates the condition:
3769 succeed if the specified switch is not present. */
3773 /* A `.' after the open-brace means test against the current suffix. */
3783 while (*p != ':' && *p != '}') p++;
3786 register int count = 1;
3804 int found = (input_suffix != 0
3805 && strlen (input_suffix) == p - filter
3806 && strncmp (input_suffix, filter, p - filter) == 0);
3812 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3817 else if (p[-1] == '*' && p[0] == '}')
3819 /* Substitute all matching switches as separate args. */
3822 for (i = 0; i < n_switches; i++)
3823 if (!strncmp (switches[i].part1, filter, p - filter)
3824 && check_live_switch (i, p - filter))
3825 give_switch (i, 0, include_blanks);
3829 /* Test for presence of the specified switch. */
3833 /* If name specified ends in *, as in {x*:...},
3834 check for %* and handle that case. */
3835 if (p[-1] == '*' && !negate)
3840 /* First see whether we have %*. */
3844 if (*r == '%' && r[1] == '*')
3848 /* If we do, handle that case. */
3851 /* Substitute all matching switches as separate args.
3852 But do this by substituting for %*
3853 in the text that follows the colon. */
3855 unsigned hard_match_len = p - filter - 1;
3856 char *string = save_string (p + 1, q - p - 2);
3858 for (i = 0; i < n_switches; i++)
3859 if (!strncmp (switches[i].part1, filter, hard_match_len)
3860 && check_live_switch (i, -1))
3862 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3863 /* Pass any arguments this switch has. */
3864 give_switch (i, 1, 1);
3871 /* If name specified ends in *, as in {x*:...},
3872 check for presence of any switch name starting with x. */
3875 for (i = 0; i < n_switches; i++)
3877 unsigned hard_match_len = p - filter - 1;
3879 if (!strncmp (switches[i].part1, filter, hard_match_len)
3880 && check_live_switch (i, hard_match_len))
3886 /* Otherwise, check for presence of exact name specified. */
3889 for (i = 0; i < n_switches; i++)
3891 if (!strncmp (switches[i].part1, filter, p - filter)
3892 && switches[i].part1[p - filter] == 0
3893 && check_live_switch (i, -1))
3901 /* If it is as desired (present for %{s...}, absent for %{-s...})
3902 then substitute either the switch or the specified
3903 conditional text. */
3904 if (present != negate)
3908 give_switch (i, 0, include_blanks);
3912 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3918 /* Here if a %{|...} conditional fails: output a minus sign,
3919 which means "standard output" or "standard input". */
3920 do_spec_1 ("-", 0, NULL_PTR);
3927 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3928 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3929 spec, or -1 if either exact match or %* is used.
3931 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3932 whose value does not begin with "no-" is obsoleted by the same value
3933 with the "no-", similarly for a switch with the "no-" prefix. */
3936 check_live_switch (switchnum, prefix_length)
3940 char *name = switches[switchnum].part1;
3943 /* In the common case of {<at-most-one-letter>*}, a negating
3944 switch would always match, so ignore that case. We will just
3945 send the conflicting switches to the compiler phase. */
3946 if (prefix_length >= 0 && prefix_length <= 1)
3949 /* If we already processed this switch and determined if it was
3950 live or not, return our past determination. */
3951 if (switches[switchnum].live_cond != 0)
3952 return switches[switchnum].live_cond > 0;
3954 /* Now search for duplicate in a manner that depends on the name. */
3958 for (i = switchnum + 1; i < n_switches; i++)
3959 if (switches[i].part1[0] == 'O')
3961 switches[switchnum].valid = 1;
3962 switches[switchnum].live_cond = -1;
3967 case 'W': case 'f': case 'm':
3968 if (! strncmp (name + 1, "no-", 3))
3970 /* We have Xno-YYY, search for XYYY. */
3971 for (i = switchnum + 1; i < n_switches; i++)
3972 if (switches[i].part1[0] == name[0]
3973 && ! strcmp (&switches[i].part1[1], &name[4]))
3975 switches[switchnum].valid = 1;
3976 switches[switchnum].live_cond = -1;
3982 /* We have XYYY, search for Xno-YYY. */
3983 for (i = switchnum + 1; i < n_switches; i++)
3984 if (switches[i].part1[0] == name[0]
3985 && switches[i].part1[1] == 'n'
3986 && switches[i].part1[2] == 'o'
3987 && switches[i].part1[3] == '-'
3988 && !strcmp (&switches[i].part1[4], &name[1]))
3990 switches[switchnum].valid = 1;
3991 switches[switchnum].live_cond = -1;
3998 /* Otherwise the switch is live. */
3999 switches[switchnum].live_cond = 1;
4003 /* Pass a switch to the current accumulating command
4004 in the same form that we received it.
4005 SWITCHNUM identifies the switch; it is an index into
4006 the vector of switches gcc received, which is `switches'.
4007 This cannot fail since it never finishes a command line.
4009 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4011 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4015 give_switch (switchnum, omit_first_word, include_blanks)
4017 int omit_first_word;
4020 if (!omit_first_word)
4022 do_spec_1 ("-", 0, NULL_PTR);
4023 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4026 if (switches[switchnum].args != 0)
4029 for (p = switches[switchnum].args; *p; p++)
4032 do_spec_1 (" ", 0, NULL_PTR);
4033 do_spec_1 (*p, 1, NULL_PTR);
4037 do_spec_1 (" ", 0, NULL_PTR);
4038 switches[switchnum].valid = 1;
4041 /* Search for a file named NAME trying various prefixes including the
4042 user's -B prefix and some standard ones.
4043 Return the absolute file name found. If nothing is found, return NAME. */
4051 /* Try multilib_dir if it is defined. */
4052 if (multilib_dir != NULL)
4056 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4057 strcpy (try, multilib_dir);
4058 strcat (try, dir_separator_str);
4061 newname = find_a_file (&startfile_prefixes, try, R_OK);
4063 /* If we don't find it in the multi library dir, then fall
4064 through and look for it in the normal places. */
4065 if (newname != NULL)
4069 newname = find_a_file (&startfile_prefixes, name, R_OK);
4070 return newname ? newname : name;
4073 /* Determine whether a directory exists. If LINKER, return 0 for
4074 certain fixed names not needed by the linker. If not LINKER, it is
4075 only important to return 0 if the host machine has a small ARG_MAX
4079 is_directory (path1, path2, linker)
4084 int len1 = strlen (path1);
4085 int len2 = strlen (path2);
4086 char *path = (char *) alloca (3 + len1 + len2);
4090 #ifndef SMALL_ARG_MAX
4095 /* Construct the path from the two parts. Ensure the string ends with "/.".
4096 The resulting path will be a directory even if the given path is a
4098 bcopy (path1, path, len1);
4099 bcopy (path2, path + len1, len2);
4100 cp = path + len1 + len2;
4101 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4102 *cp++ = DIR_SEPARATOR;
4106 /* Exclude directories that the linker is known to search. */
4109 && strcmp (path, concat (dir_separator_str, "lib",
4110 dir_separator_str, ".", NULL_PTR)) == 0)
4112 && strcmp (path, concat (dir_separator_str, "usr",
4113 dir_separator_str, "lib",
4114 dir_separator_str, ".", NULL_PTR)) == 0)))
4117 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4120 /* On fatal signals, delete all the temporary files. */
4123 fatal_error (signum)
4126 signal (signum, SIG_DFL);
4127 delete_failure_queue ();
4128 delete_temp_files ();
4129 /* Get the same signal again, this time not handled,
4130 so its normal effect occurs. */
4131 kill (getpid (), signum);
4142 int linker_was_run = 0;
4143 char *explicit_link_files;
4146 struct user_specs *uptr;
4148 p = argv[0] + strlen (argv[0]);
4149 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4152 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4153 signal (SIGINT, fatal_error);
4155 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4156 signal (SIGHUP, fatal_error);
4158 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4159 signal (SIGTERM, fatal_error);
4161 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4162 signal (SIGPIPE, fatal_error);
4166 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4168 obstack_init (&obstack);
4170 /* Build multilib_select, et. al from the separate lines that make up each
4171 multilib selection. */
4173 char **q = multilib_raw;
4176 obstack_init (&multilib_obstack);
4177 while ((p = *q++) != (char *) 0)
4178 obstack_grow (&multilib_obstack, p, strlen (p));
4180 obstack_1grow (&multilib_obstack, 0);
4181 multilib_select = obstack_finish (&multilib_obstack);
4183 q = multilib_matches_raw;
4184 while ((p = *q++) != (char *) 0)
4185 obstack_grow (&multilib_obstack, p, strlen (p));
4187 obstack_1grow (&multilib_obstack, 0);
4188 multilib_matches = obstack_finish (&multilib_obstack);
4192 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4196 obstack_1grow (&multilib_obstack, ' ');
4197 obstack_grow (&multilib_obstack,
4198 multilib_defaults_raw[i],
4199 strlen (multilib_defaults_raw[i]));
4203 obstack_1grow (&multilib_obstack, 0);
4204 multilib_defaults = obstack_finish (&multilib_obstack);
4207 /* Set up to remember the pathname of gcc and any options
4208 needed for collect. We use argv[0] instead of programname because
4209 we need the complete pathname. */
4210 obstack_init (&collect_obstack);
4211 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4212 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4213 putenv (obstack_finish (&collect_obstack));
4215 #ifdef INIT_ENVIRONMENT
4216 /* Set up any other necessary machine specific environment variables. */
4217 putenv (INIT_ENVIRONMENT);
4220 /* Choose directory for temp files. */
4222 temp_filename = choose_temp_base ();
4223 temp_filename_length = strlen (temp_filename);
4225 /* Make a table of what switches there are (switches, n_switches).
4226 Make a table of specified input files (infiles, n_infiles).
4227 Decode switches that are handled locally. */
4229 process_command (argc, argv);
4231 /* Initialize the vector of specs to just the default.
4232 This means one element containing 0s, as a terminator. */
4234 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4235 bcopy ((char *) default_compilers, (char *) compilers,
4236 sizeof default_compilers);
4237 n_compilers = n_default_compilers;
4239 /* Read specs from a file if there is one. */
4241 machine_suffix = concat (spec_machine, dir_separator_str,
4242 spec_version, dir_separator_str, NULL_PTR);
4243 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4245 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4246 /* Read the specs file unless it is a default one. */
4247 if (specs_file != 0 && strcmp (specs_file, "specs"))
4250 read_specs (specs_file);
4255 /* Process any user specified specs in the order given on the command
4257 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4259 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4260 read_specs (filename ? filename : uptr->filename);
4263 /* If not cross-compiling, look for startfiles in the standard places. */
4264 /* The fact that these are done here, after reading the specs file,
4265 means that it cannot be found in these directories.
4266 But that's okay. It should never be there anyway. */
4267 if (*cross_compile != '0')
4269 #ifdef MD_EXEC_PREFIX
4270 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4271 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4274 #ifdef MD_STARTFILE_PREFIX
4275 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4278 #ifdef MD_STARTFILE_PREFIX_1
4279 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4282 /* If standard_startfile_prefix is relative, base it on
4283 standard_exec_prefix. This lets us move the installed tree
4284 as a unit. If GCC_EXEC_PREFIX is defined, base
4285 standard_startfile_prefix on that as well. */
4286 if (*standard_startfile_prefix == '/'
4287 || *standard_startfile_prefix == DIR_SEPARATOR)
4288 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4292 if (gcc_exec_prefix)
4293 add_prefix (&startfile_prefixes,
4294 concat (gcc_exec_prefix, machine_suffix,
4295 standard_startfile_prefix, NULL_PTR),
4297 add_prefix (&startfile_prefixes,
4298 concat (standard_exec_prefix,
4300 standard_startfile_prefix, NULL_PTR),
4304 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4306 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4308 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4309 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4314 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4315 add_prefix (&startfile_prefixes,
4316 concat (gcc_exec_prefix, machine_suffix,
4317 standard_startfile_prefix, NULL_PTR),
4321 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4322 if (gcc_exec_prefix)
4324 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4325 + strlen (spec_version)
4326 + strlen (spec_machine) + 3);
4327 strcpy (temp, gcc_exec_prefix);
4328 strcat (temp, spec_machine);
4329 strcat (temp, dir_separator_str);
4330 strcat (temp, spec_version);
4331 strcat (temp, dir_separator_str);
4332 gcc_exec_prefix = temp;
4335 /* Now we have the specs.
4336 Set the `valid' bits for switches that match anything in any spec. */
4338 validate_all_switches ();
4340 /* Now that we have the switches and the specs, set
4341 the subdirectory based on the options. */
4342 set_multilib_dir ();
4344 /* Warn about any switches that no pass was interested in. */
4346 for (i = 0; i < n_switches; i++)
4347 if (! switches[i].valid)
4348 error ("unrecognized option `-%s'", switches[i].part1);
4350 /* Obey some of the options. */
4352 if (print_search_dirs)
4354 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4355 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4356 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4360 if (print_file_name)
4362 printf ("%s\n", find_file (print_file_name));
4366 if (print_prog_name)
4368 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4369 printf ("%s\n", (newname ? newname : print_prog_name));
4373 if (print_multi_lib)
4375 print_multilib_info ();
4379 if (print_multi_directory)
4381 if (multilib_dir == NULL)
4384 printf ("%s\n", multilib_dir);
4390 if (! strcmp (version_string, compiler_version))
4391 fprintf (stderr, "gcc version %s\n", version_string);
4393 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4394 version_string, compiler_version);
4401 fatal ("No input files");
4403 /* Make a place to record the compiler output file names
4404 that correspond to the input files. */
4406 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4407 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4409 /* Record which files were specified explicitly as link input. */
4411 explicit_link_files = xmalloc (n_infiles);
4412 bzero (explicit_link_files, n_infiles);
4414 for (i = 0; i < n_infiles; i++)
4416 register struct compiler *cp = 0;
4417 int this_file_error = 0;
4419 /* Tell do_spec what to substitute for %i. */
4421 input_filename = infiles[i].name;
4422 input_filename_length = strlen (input_filename);
4423 input_file_number = i;
4425 /* Use the same thing in %o, unless cp->spec says otherwise. */
4427 outfiles[i] = input_filename;
4429 /* Figure out which compiler from the file's suffix. */
4431 cp = lookup_compiler (infiles[i].name, input_filename_length,
4432 infiles[i].language);
4436 /* Ok, we found an applicable compiler. Run its spec. */
4437 /* First say how much of input_filename to substitute for %b */
4441 if (cp->spec[0][0] == '#')
4442 error ("%s: %s compiler not installed on this system",
4443 input_filename, &cp->spec[0][1]);
4445 input_basename = input_filename;
4446 for (p = input_filename; *p; p++)
4447 if (*p == '/' || *p == DIR_SEPARATOR)
4448 input_basename = p + 1;
4450 /* Find a suffix starting with the last period,
4451 and set basename_length to exclude that suffix. */
4452 basename_length = strlen (input_basename);
4453 p = input_basename + basename_length;
4454 while (p != input_basename && *p != '.') --p;
4455 if (*p == '.' && p != input_basename)
4457 basename_length = p - input_basename;
4458 input_suffix = p + 1;
4464 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4466 len += strlen (cp->spec[j]);
4468 p = (char *) xmalloc (len + 1);
4471 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4474 strcpy (p + len, cp->spec[j]);
4475 len += strlen (cp->spec[j]);
4478 value = do_spec (p);
4481 this_file_error = 1;
4484 /* If this file's name does not contain a recognized suffix,
4485 record it as explicit linker input. */
4488 explicit_link_files[i] = 1;
4490 /* Clear the delete-on-failure queue, deleting the files in it
4491 if this compilation failed. */
4493 if (this_file_error)
4495 delete_failure_queue ();
4498 /* If this compilation succeeded, don't delete those files later. */
4499 clear_failure_queue ();
4502 /* Run ld to link all the compiler output files. */
4504 if (error_count == 0)
4506 int tmp = execution_count;
4510 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4512 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4513 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4515 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4517 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4518 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4521 for (i = 0; i < n_switches; i++)
4525 obstack_grow (&collect_obstack, " ", 1);
4528 obstack_grow (&collect_obstack, "-", 1);
4529 obstack_grow (&collect_obstack, switches[i].part1,
4530 strlen (switches[i].part1));
4532 for (args = switches[i].args; args && *args; args++)
4534 obstack_grow (&collect_obstack, " ", 1);
4535 obstack_grow (&collect_obstack, *args, strlen (*args));
4538 obstack_grow (&collect_obstack, "\0", 1);
4539 putenv (obstack_finish (&collect_obstack));
4541 value = do_spec (link_command_spec);
4544 linker_was_run = (tmp != execution_count);
4547 /* Warn if a -B option was specified but the prefix was never used. */
4548 unused_prefix_warnings (&exec_prefixes);
4549 unused_prefix_warnings (&startfile_prefixes);
4551 /* If options said don't run linker,
4552 complain about input files to be given to the linker. */
4554 if (! linker_was_run && error_count == 0)
4555 for (i = 0; i < n_infiles; i++)
4556 if (explicit_link_files[i])
4557 error ("%s: linker input file unused since linking not done",
4560 /* Delete some or all of the temporary files we made. */
4563 delete_failure_queue ();
4564 delete_temp_files ();
4566 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4571 /* Find the proper compilation spec for the file name NAME,
4572 whose length is LENGTH. LANGUAGE is the specified language,
4573 or 0 if none specified. */
4575 static struct compiler *
4576 lookup_compiler (name, length, language)
4581 struct compiler *cp;
4583 /* Look for the language, if one is spec'd. */
4586 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4590 if (cp->suffix[0] == '@'
4591 && !strcmp (cp->suffix + 1, language))
4595 error ("language %s not recognized", language);
4598 /* Look for a suffix. */
4599 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4601 if (/* The suffix `-' matches only the file name `-'. */
4602 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4604 (strlen (cp->suffix) < length
4605 /* See if the suffix matches the end of NAME. */
4607 && (!strcmp (cp->suffix,
4608 name + length - strlen (cp->suffix))
4609 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4610 && !strcasecmp (cp->suffix,
4611 name + length - strlen (cp->suffix)))))
4613 && !strcmp (cp->suffix,
4614 name + length - strlen (cp->suffix))))
4617 if (cp->spec[0][0] == '@')
4619 struct compiler *new;
4620 /* An alias entry maps a suffix to a language.
4621 Search for the language; pass 0 for NAME and LENGTH
4622 to avoid infinite recursion if language not found.
4623 Construct the new compiler spec. */
4624 language = cp->spec[0] + 1;
4625 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4626 new->suffix = cp->suffix;
4627 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4628 (char *) new->spec, sizeof new->spec);
4631 /* A non-alias entry: return it. */
4643 register char *value = (char *) malloc (size);
4645 fatal ("virtual memory exhausted");
4650 xrealloc (ptr, size)
4654 register char *value = (char *) realloc (ptr, size);
4656 fatal ("virtual memory exhausted");
4660 /* This function is based on the one in libiberty. */
4663 concat VPROTO((char *first, ...))
4665 register int length;
4666 register char *newstr;
4674 /* First compute the size of the result and get sufficient memory. */
4676 VA_START (args, first);
4678 first = va_arg (args, char *);
4686 length += strlen (arg);
4687 arg = va_arg (args, char *);
4690 newstr = (char *) xmalloc (length + 1);
4693 /* Now copy the individual pieces to the result string. */
4695 VA_START (args, first);
4697 first = va_arg (args, char *);
4706 arg = va_arg (args, char *);
4715 save_string (s, len)
4719 register char *result = xmalloc (len + 1);
4721 bcopy (s, result, len);
4727 pfatal_with_name (name)
4730 fatal ("%s: %s", name, my_strerror (errno));
4734 perror_with_name (name)
4737 error ("%s: %s", name, my_strerror (errno));
4741 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4747 /* Space for trailing '\0' is in %s. */
4748 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4749 sprintf (msg, errmsg_fmt, errmsg_arg);
4753 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4756 /* More 'friendly' abort that prints the line and file.
4757 config.h can #define abort fancy_abort if you like that sort of thing. */
4762 fatal ("Internal gcc abort.");
4767 /* Output an error message and exit */
4770 fatal VPROTO((char *format, ...))
4777 VA_START (ap, format);
4780 format = va_arg (ap, char *);
4783 fprintf (stderr, "%s: ", programname);
4784 vfprintf (stderr, format, ap);
4786 fprintf (stderr, "\n");
4787 delete_temp_files ();
4792 error VPROTO((char *format, ...))
4799 VA_START (ap, format);
4802 format = va_arg (ap, char *);
4805 fprintf (stderr, "%s: ", programname);
4806 vfprintf (stderr, format, ap);
4809 fprintf (stderr, "\n");
4812 #else /* not HAVE_VPRINTF */
4815 fatal (msg, arg1, arg2)
4816 char *msg, *arg1, *arg2;
4818 error (msg, arg1, arg2);
4819 delete_temp_files ();
4824 error (msg, arg1, arg2)
4825 char *msg, *arg1, *arg2;
4827 fprintf (stderr, "%s: ", programname);
4828 fprintf (stderr, msg, arg1, arg2);
4829 fprintf (stderr, "\n");
4832 #endif /* not HAVE_VPRINTF */
4836 validate_all_switches ()
4838 struct compiler *comp;
4841 struct spec_list *spec;
4843 for (comp = compilers; comp->spec[0]; comp++)
4846 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4850 if (c == '%' && *p == '{')
4851 /* We have a switch spec. */
4852 validate_switches (p + 1);
4856 /* look through the linked list of specs read from the specs file */
4857 for (spec = specs; spec ; spec = spec->next)
4859 p = *(spec->ptr_spec);
4861 if (c == '%' && *p == '{')
4862 /* We have a switch spec. */
4863 validate_switches (p + 1);
4866 p = link_command_spec;
4868 if (c == '%' && *p == '{')
4869 /* We have a switch spec. */
4870 validate_switches (p + 1);
4873 /* Look at the switch-name that comes after START
4874 and mark as valid all supplied switches that match it. */
4877 validate_switches (start)
4880 register char *p = start;
4895 while (*p != ':' && *p != '}') p++;
4899 else if (p[-1] == '*')
4901 /* Mark all matching switches as valid. */
4903 for (i = 0; i < n_switches; i++)
4904 if (!strncmp (switches[i].part1, filter, p - filter))
4905 switches[i].valid = 1;
4909 /* Mark an exact matching switch as valid. */
4910 for (i = 0; i < n_switches; i++)
4912 if (!strncmp (switches[i].part1, filter, p - filter)
4913 && switches[i].part1[p - filter] == 0)
4914 switches[i].valid = 1;
4919 /* Check whether a particular argument was used. The first time we
4920 canonialize the switches to keep only the ones we care about. */
4934 static struct mswitchstr *mswitches;
4935 static int n_mswitches;
4940 struct mswitchstr *matches;
4944 /* Break multilib_matches into the component strings of string and replacement
4946 for (q = multilib_matches; *q != '\0'; q++)
4950 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
4952 q = multilib_matches;
4963 matches[i].len = q - matches[i].str;
4965 matches[i].replace = ++q;
4966 while (*q != ';' && *q != '\0')
4972 matches[i].rep_len = q - matches[i].replace;
4980 /* Now build a list of the replacement string for switches that we care
4981 about. Make sure we allocate at least one entry. This prevents
4982 xmalloc from calling fatal, and prevents us from re-executing this
4985 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
4986 * (n_switches ? n_switches : 1));
4987 for (i = 0; i < n_switches; i++)
4989 int xlen = strlen (switches[i].part1);
4990 for (j = 0; j < cnt; j++)
4991 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
4993 mswitches[n_mswitches].str = matches[j].replace;
4994 mswitches[n_mswitches].len = matches[j].rep_len;
4995 mswitches[n_mswitches].replace = (char *)0;
4996 mswitches[n_mswitches].rep_len = 0;
5003 for (i = 0; i < n_mswitches; i++)
5004 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5011 default_arg (p, len)
5018 for (start = multilib_defaults; *start != '\0'; start = end+1)
5020 while (*start == ' ' || *start == '\t')
5026 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5029 if ((end - start) == len && strncmp (p, start, len) == 0)
5036 /* Work out the subdirectory to use based on the
5037 options. The format of multilib_select is a list of elements.
5038 Each element is a subdirectory name followed by a list of options
5039 followed by a semicolon. gcc will consider each line in turn. If
5040 none of the options beginning with an exclamation point are
5041 present, and all of the other options are present, that
5042 subdirectory will be used. */
5047 char *p = multilib_select;
5049 char *this_path, *this_arg;
5055 /* Ignore newlines. */
5062 /* Get the initial path. */
5070 this_path_len = p - this_path;
5072 /* Check the arguments. */
5087 while (*p != ' ' && *p != ';')
5094 if (*this_arg != '!')
5102 /* If this is a default argument, we can just ignore it.
5103 This is true even if this_arg begins with '!'. Beginning
5104 with '!' does not mean that this argument is necessarily
5105 inappropriate for this library: it merely means that
5106 there is a more specific library which uses this
5107 argument. If this argument is a default, we need not
5108 consider that more specific library. */
5109 if (! default_arg (this_arg, p - this_arg))
5111 ok = used_arg (this_arg, p - this_arg);
5122 if (this_path_len != 1
5123 || this_path[0] != '.')
5125 multilib_dir = xmalloc (this_path_len + 1);
5126 strncpy (multilib_dir, this_path, this_path_len);
5127 multilib_dir[this_path_len] = '\0';
5136 /* Print out the multiple library subdirectory selection
5137 information. This prints out a series of lines. Each line looks
5138 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5139 required. Only the desired options are printed out, the negative
5140 matches. The options are print without a leading dash. There are
5141 no spaces to make it easy to use the information in the shell.
5142 Each subdirectory is printed only once. This assumes the ordering
5143 generated by the genmultilib script. */
5146 print_multilib_info ()
5148 char *p = multilib_select;
5149 char *last_path = 0, *this_path;
5151 int last_path_len = 0;
5155 /* Ignore newlines. */
5162 /* Get the initial path. */
5171 /* If this is a duplicate, skip it. */
5172 skip = (last_path != 0 && p - this_path == last_path_len
5173 && ! strncmp (last_path, this_path, last_path_len));
5175 last_path = this_path;
5176 last_path_len = p - this_path;
5178 /* If this directory requires any default arguments, we can skip
5179 it. We will already have printed a directory identical to
5180 this one which does not require that default argument. */
5198 while (*q != ' ' && *q != ';')
5206 && default_arg (arg, q - arg))
5221 for (p1 = last_path; p1 < p; p1++)
5240 use_arg = *p != '!';
5245 while (*p != ' ' && *p != ';')
5260 /* If there are extra options, print them now */
5261 if (multilib_extra && *multilib_extra)
5263 int print_at = TRUE;
5266 for (q = multilib_extra; *q != '\0'; q++)