1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
37 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
49 /* Include multi-lib information. */
58 /* Add prototype support. */
60 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
61 #define PROTO(ARGS) ARGS
63 #define PROTO(ARGS) ()
69 #define PVPROTO(ARGS) ARGS
70 #define VPROTO(ARGS) ARGS
71 #define VA_START(va_list,var) va_start(va_list,var)
73 #define PVPROTO(ARGS) ()
74 #define VPROTO(ARGS) (va_alist) va_dcl
75 #define VA_START(va_list,var) va_start(va_list)
79 /* Define a generic NULL if one hasn't already been defined. */
86 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
87 #define GENERIC_PTR void *
89 #define GENERIC_PTR char *
94 #define NULL_PTR ((GENERIC_PTR)0)
101 /* On MSDOS, write temp files in current dir
102 because there's no place else we can expect to use. */
109 /* Test if something is a normal file. */
111 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
114 /* Test if something is a directory. */
116 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
119 /* By default there is no special suffix for executables. */
120 #ifndef EXECUTABLE_SUFFIX
121 #define EXECUTABLE_SUFFIX ""
124 /* By default, colon separates directories in a path. */
125 #ifndef PATH_SEPARATOR
126 #define PATH_SEPARATOR ':'
129 #define obstack_chunk_alloc xmalloc
130 #define obstack_chunk_free free
133 extern char *getenv ();
140 #if defined(bsd4_4) || defined(__NetBSD__)
141 extern const char *const sys_errlist[];
143 extern char *sys_errlist[];
146 extern int execv (), execvp ();
148 /* If a stage of compilation returns an exit status >= 1,
149 compilation of that file ceases. */
151 #define MIN_FATAL_STATUS 1
153 /* Flag saying to print the full filename of this file
154 as found through our usual search mechanism. */
156 static char *print_file_name = NULL;
158 /* As print_file_name, but search for executable file. */
160 static char *print_prog_name = NULL;
162 /* Flag saying to print the relative path we'd use to
163 find libgcc.a given the current compiler flags. */
165 static int print_multi_directory;
167 /* Flag saying to print the list of subdirectories and
168 compiler flags used to select them in a standard form. */
170 static int print_multi_lib;
172 /* Flag indicating whether we should print the command and arguments */
174 static int verbose_flag;
176 /* Nonzero means write "temp" files in source directory
177 and use the source file's name in them, and don't delete them. */
179 static int save_temps_flag;
181 /* The compiler version. */
183 static char *compiler_version;
185 /* The target version specified with -V */
187 static char *spec_version = DEFAULT_TARGET_VERSION;
189 /* The target machine specified with -b. */
191 static char *spec_machine = DEFAULT_TARGET_MACHINE;
193 /* Nonzero if cross-compiling.
194 When -b is used, the value comes from the `specs' file. */
197 static int cross_compile = 1;
199 static int cross_compile = 0;
202 /* The number of errors that have occurred; the link phase will not be
203 run if this is non-zero. */
204 static int error_count = 0;
206 /* This is the obstack which we use to allocate many strings. */
208 static struct obstack obstack;
210 /* This is the obstack to build an environment variable to pass to
211 collect2 that describes all of the relevant switches of what to
212 pass the compiler in building the list of pointers to constructors
215 static struct obstack collect_obstack;
217 extern char *version_string;
219 /* Forward declaration for prototypes. */
222 static void set_spec PROTO((char *, char *));
223 static struct compiler *lookup_compiler PROTO((char *, int, char *));
224 static char *find_a_file PROTO((struct path_prefix *, char *, int));
225 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
226 static char *skip_whitespace PROTO((char *));
227 static void record_temp_file PROTO((char *, int, int));
228 static void delete_if_ordinary PROTO((char *));
229 static void delete_temp_files PROTO((void));
230 static void delete_failure_queue PROTO((void));
231 static void clear_failure_queue PROTO((void));
232 static char *choose_temp_base_try PROTO((char *, char *));
233 static void choose_temp_base PROTO((void));
234 static int check_live_switch PROTO((int, int));
235 static char *handle_braces PROTO((char *));
236 static char *save_string PROTO((char *, int));
237 static char *concat PROTO((char *, char *, char *));
238 static int do_spec PROTO((char *));
239 static int do_spec_1 PROTO((char *, int, char *));
240 static char *find_file PROTO((char *));
241 static int is_directory PROTO((char *, char *, int));
242 static void validate_switches PROTO((char *));
243 static void validate_all_switches PROTO((void));
244 static void give_switch PROTO((int, int));
245 static int used_arg PROTO((char *, int));
246 static void set_multilib_dir PROTO((void));
247 static void print_multilib_info PROTO((void));
248 static void pfatal_with_name PROTO((char *));
249 static void perror_with_name PROTO((char *));
250 static void perror_exec PROTO((char *));
252 static void fatal PVPROTO((char *, ...));
253 static void error PVPROTO((char *, ...));
255 /* We must not provide any prototype here, even if ANSI C. */
256 static void fatal PROTO(());
257 static void error PROTO(());
264 /* Specs are strings containing lines, each of which (if not blank)
265 is made up of a program name, and arguments separated by spaces.
266 The program name must be exact and start from root, since no path
267 is searched and it is unreliable to depend on the current working directory.
268 Redirection of input or output is not supported; the subprograms must
269 accept filenames saying what files to read and write.
271 In addition, the specs can contain %-sequences to substitute variable text
272 or for conditional text. Here is a table of all defined %-sequences.
273 Note that spaces are not generated automatically around the results of
274 expanding these sequences; therefore, you can concatenate them together
275 or with constant text in a single argument.
277 %% substitute one % into the program name or argument.
278 %i substitute the name of the input file being processed.
279 %b substitute the basename of the input file being processed.
280 This is the substring up to (and not including) the last period
281 and not including the directory.
282 %g substitute the temporary-file-name-base. This is a string chosen
283 once per compilation. Different temporary file names are made by
284 concatenation of constant strings on the end, as in `%g.s'.
285 %g also has the same effect of %d.
286 %u like %g, but make the temporary file name unique.
287 %U returns the last file name generated with %u.
288 %d marks the argument containing or following the %d as a
289 temporary file name, so that that file will be deleted if CC exits
290 successfully. Unlike %g, this contributes no text to the argument.
291 %w marks the argument containing or following the %w as the
292 "output file" of this compilation. This puts the argument
293 into the sequence of arguments that %o will substitute later.
295 like %{...} but mark last argument supplied within
296 as a file to be deleted on failure.
297 %o substitutes the names of all the output files, with spaces
298 automatically placed around them. You should write spaces
299 around the %o as well or the results are undefined.
300 %o is for use in the specs for running the linker.
301 Input files whose names have no recognized suffix are not compiled
302 at all, but they are included among the output files, so they will
304 %p substitutes the standard macro predefinitions for the
305 current target machine. Use this when running cpp.
306 %P like %p, but puts `__' before and after the name of each macro.
307 (Except macros that already have __.)
309 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
310 %s current argument is the name of a library or startup file of some sort.
311 Search for that file in a standard list of directories
312 and substitute the full name found.
313 %eSTR Print STR as an error message. STR is terminated by a newline.
314 Use this when inconsistent options are detected.
315 %x{OPTION} Accumulate an option for %X.
316 %X Output the accumulated linker options specified by compilations.
317 %Y Output the accumulated assembler options specified by compilations.
318 %Z Output the accumulated preprocessor options specified by compilations.
319 %v1 Substitute the major version number of GCC.
320 (For version 2.5.n, this is 2.)
321 %v2 Substitute the minor version number of GCC.
322 (For version 2.5.n, this is 5.)
323 %a process ASM_SPEC as a spec.
324 This allows config.h to specify part of the spec for running as.
325 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
326 used here. This can be used to run a post-processor after the
327 assembler has done it's job.
328 %D Dump out a -L option for each directory in startfile_prefix.
329 If multilib_dir is set, extra entries are generated with it affixed.
330 %l process LINK_SPEC as a spec.
331 %L process LIB_SPEC as a spec.
332 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
333 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
334 %c process SIGNED_CHAR_SPEC as a spec.
335 %C process CPP_SPEC as a spec. A capital C is actually used here.
336 %1 process CC1_SPEC as a spec.
337 %2 process CC1PLUS_SPEC as a spec.
338 %| output "-" if the input for the current command is coming from a pipe.
339 %* substitute the variable part of a matched option. (See below.)
340 Note that each comma in the substituted string is replaced by
342 %{S} substitutes the -S switch, if that switch was given to CC.
343 If that switch was not specified, this substitutes nothing.
344 Here S is a metasyntactic variable.
345 %{S*} substitutes all the switches specified to CC whose names start
346 with -S. This is used for -o, -D, -I, etc; switches that take
347 arguments. CC considers `-o foo' as being one switch whose
348 name starts with `o'. %{o*} would substitute this text,
349 including the space; thus, two arguments would be generated.
350 %{S*:X} substitutes X if one or more switches whose names start with -S are
351 specified to CC. Note that the tail part of the -S option
352 (i.e. the part matched by the `*') will be substituted for each
353 occurrence of %* within X.
354 %{S:X} substitutes X, but only if the -S switch was given to CC.
355 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
356 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
357 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
358 %{.S:X} substitutes X, but only if processing a file with suffix S.
359 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
360 %(Spec) processes a specification defined in a specs file as *Spec:
361 %[Spec] as above, but put __ around -D arguments
363 The conditional text X in a %{S:X} or %{!S:X} construct may contain
364 other nested % constructs or spaces, or even newlines. They are
365 processed as usual, as described above.
367 The -O, -f, -m, and -W switches are handled specifically in these
368 constructs. If another value of -O or the negated form of a -f, -m, or
369 -W switch is found later in the command line, the earlier switch
370 value is ignored, except with {S*} where S is just one letter; this
371 passes all matching options.
373 The character | is used to indicate that a command should be piped to
374 the following command, but only if -pipe is specified.
376 Note that it is built into CC which switches take arguments and which
377 do not. You might think it would be useful to generalize this to
378 allow each compiler's spec to say which switches take arguments. But
379 this cannot be done in a consistent fashion. CC cannot even decide
380 which input files have been specified without knowing which switches
381 take arguments, and it must know which input files to compile in order
382 to tell which compilers to run.
384 CC also knows implicitly that arguments starting in `-l' are to be
385 treated as compiler output files, and passed to the linker in their
386 proper position among the other output files. */
388 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
390 /* config.h can define ASM_SPEC to provide extra args to the assembler
391 or extra switch-translations. */
396 /* config.h can define ASM_FINAL_SPEC to run a post processor after
397 the assembler has run. */
398 #ifndef ASM_FINAL_SPEC
399 #define ASM_FINAL_SPEC ""
402 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
403 or extra switch-translations. */
408 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
409 or extra switch-translations. */
414 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
415 or extra switch-translations. */
417 #define CC1PLUS_SPEC ""
420 /* config.h can define LINK_SPEC to provide extra args to the linker
421 or extra switch-translations. */
426 /* config.h can define LIB_SPEC to override the default libraries. */
428 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
431 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
432 #ifndef STARTFILE_SPEC
433 #define STARTFILE_SPEC \
434 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
437 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
438 Make the string nonempty to require spaces there. */
439 #ifndef SWITCHES_NEED_SPACES
440 #define SWITCHES_NEED_SPACES ""
443 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
445 #define ENDFILE_SPEC ""
448 /* This spec is used for telling cpp whether char is signed or not. */
449 #ifndef SIGNED_CHAR_SPEC
450 /* Use #if rather than ?:
451 because MIPS C compiler rejects like ?: in initializers. */
452 #if DEFAULT_SIGNED_CHAR
453 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
455 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
459 /* MULTILIB_SELECT comes from multilib.h. It gives a
460 string interpreted by set_multilib_dir to select a library
461 subdirectory based on the compiler options. */
462 #ifndef MULTILIB_SELECT
463 #define MULTILIB_SELECT ". ;"
466 static char *cpp_spec = CPP_SPEC;
467 static char *cpp_predefines = CPP_PREDEFINES;
468 static char *cc1_spec = CC1_SPEC;
469 static char *cc1plus_spec = CC1PLUS_SPEC;
470 static char *signed_char_spec = SIGNED_CHAR_SPEC;
471 static char *asm_spec = ASM_SPEC;
472 static char *asm_final_spec = ASM_FINAL_SPEC;
473 static char *link_spec = LINK_SPEC;
474 static char *lib_spec = LIB_SPEC;
475 static char *endfile_spec = ENDFILE_SPEC;
476 static char *startfile_spec = STARTFILE_SPEC;
477 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
478 static char *multilib_select = MULTILIB_SELECT;
480 /* This defines which switch letters take arguments. */
482 #ifndef SWITCH_TAKES_ARG
483 #define SWITCH_TAKES_ARG(CHAR) \
484 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
485 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
486 || (CHAR) == 'I' || (CHAR) == 'm' \
487 || (CHAR) == 'L' || (CHAR) == 'A')
490 /* This defines which multi-letter switches take arguments. */
492 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
493 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
494 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
495 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
496 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
497 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
498 || !strcmp (STR, "isystem"))
500 #ifndef WORD_SWITCH_TAKES_ARG
501 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
504 /* Record the mapping from file suffixes for compilation specs. */
508 char *suffix; /* Use this compiler for input files
509 whose names end in this suffix. */
511 char *spec[4]; /* To use this compiler, concatenate these
512 specs and pass to do_spec. */
515 /* Pointer to a vector of `struct compiler' that gives the spec for
516 compiling a file, based on its suffix.
517 A file that does not end in any of these suffixes will be passed
518 unchanged to the loader and nothing else will be done to it.
520 An entry containing two 0s is used to terminate the vector.
522 If multiple entries match a file, the last matching one is used. */
524 static struct compiler *compilers;
526 /* Number of entries in `compilers', not counting the null terminator. */
528 static int n_compilers;
530 /* The default list of file name suffixes and their compilation specs. */
532 static struct compiler default_compilers[] =
536 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
537 %{C:%{!E:%eGNU C does not support -C without using -E}}\
538 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
539 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
540 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
541 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
542 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
543 %{traditional-cpp:-traditional}\
544 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
545 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
546 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
547 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
548 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
549 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
551 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
552 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
553 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
554 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
555 %{!pipe:%g.s} %A\n }}}}"},
557 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
558 %{C:%{!E:%eGNU C does not support -C without using -E}}\
559 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
560 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
561 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
562 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
563 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
564 %{traditional-cpp:-traditional}\
565 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
567 %{!E:%e-E required when input is from standard input}"},
568 {".m", "@objective-c"},
570 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
571 %{C:%{!E:%eGNU C does not support -C without using -E}}\
572 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
573 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
574 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
575 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
576 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
577 %{traditional-cpp:-traditional}\
578 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
579 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
580 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
581 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
582 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
583 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
584 -lang-objc %{gen-decls} \
586 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
587 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
588 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
589 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
590 %{!pipe:%g.s} %A\n }}}}"},
593 "%{!E:%eCompilation of header file requested} \
594 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
595 %{C:%{!E:%eGNU C does not support -C without using -E}}\
596 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
597 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
598 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
599 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
600 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
601 %{traditional-cpp:-traditional}\
602 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
609 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
610 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
611 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
612 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
613 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
614 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
615 %{traditional-cpp:-traditional} %{trigraphs}\
616 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
617 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
618 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
619 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
620 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
621 %{traditional} %{v:-version} %{pg:-p} %{p}\
622 %{f*} %{+e*} %{aux-info*}\
623 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
624 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
625 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
626 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
627 %{!pipe:%g.s} %A\n }}}}"},
628 {".i", "@cpp-output"},
630 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
631 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
632 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
634 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
635 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
636 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
637 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
638 %{!pipe:%g.s} %A\n }}}}"},
639 {".ii", "@c++-cpp-output"},
641 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
642 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
643 %{traditional} %{v:-version} %{pg:-p} %{p}\
644 %{f*} %{+e*} %{aux-info*}\
645 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
646 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
647 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
648 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
649 %{!pipe:%g.s} %A\n }}}}"},
650 {".s", "@assembler"},
652 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
653 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
655 {".S", "@assembler-with-cpp"},
656 {"@assembler-with-cpp",
657 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
658 %{C:%{!E:%eGNU C does not support -C without using -E}}\
659 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
660 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
661 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
662 %{traditional-cpp:-traditional}\
663 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
664 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
665 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
666 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
667 %{!pipe:%g.s} %A\n }}}}"},
672 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
673 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
675 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
676 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
677 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
678 %{c:%W{o*}%{!o*:-o %w%b.o}}\
679 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
680 /* Mark end of table */
684 /* Number of elements in default_compilers, not counting the terminator. */
686 static int n_default_compilers
687 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
689 /* Here is the spec for running the linker, after compiling all files. */
691 /* -u* was put back because both BSD and SysV seem to support it. */
692 /* %{static:} simply prevents an error message if the target machine
693 doesn't handle -static. */
694 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
695 scripts which exist in user specified directories, or in standard
697 #ifdef LINK_LIBGCC_SPECIAL_1
698 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
699 static char *link_command_spec = "\
701 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
702 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
703 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
704 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
706 #ifdef LINK_LIBGCC_SPECIAL
707 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
708 static char *link_command_spec = "\
710 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
711 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
712 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
713 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
715 /* Use -L and have the linker do the search for -lgcc. */
716 static char *link_command_spec = "\
718 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
719 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
720 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
721 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
725 /* A vector of options to give to the linker.
726 These options are accumulated by -Xlinker and -Wl,
727 and substituted into the linker command with %X. */
728 static int n_linker_options;
729 static char **linker_options;
731 /* A vector of options to give to the assembler.
732 These options are accumulated by -Wa,
733 and substituted into the assembler command with %Y. */
734 static int n_assembler_options;
735 static char **assembler_options;
737 /* A vector of options to give to the preprocessor.
738 These options are accumulated by -Wp,
739 and substituted into the preprocessor command with %Z. */
740 static int n_preprocessor_options;
741 static char **preprocessor_options;
743 /* Define how to map long options into short ones. */
745 /* This structure describes one mapping. */
748 /* The long option's name. */
750 /* The equivalent short option. */
752 /* Argument info. A string of flag chars; NULL equals no options.
753 a => argument required.
754 o => argument optional.
755 j => join argument to equivalent, making one word.
756 * => require other text after NAME as an argument. */
760 /* This is the table of mappings. Mappings are tried sequentially
761 for each option encountered; the first one that matches, wins. */
763 struct option_map option_map[] =
765 {"--all-warnings", "-Wall", 0},
766 {"--ansi", "-ansi", 0},
767 {"--assemble", "-S", 0},
768 {"--assert", "-A", "a"},
769 {"--comments", "-C", 0},
770 {"--compile", "-c", 0},
771 {"--debug", "-g", "oj"},
772 {"--define-macro", "-D", "a"},
773 {"--dependencies", "-M", 0},
774 {"--dump", "-d", "a"},
775 {"--dumpbase", "-dumpbase", "a"},
776 {"--entry", "-e", 0},
777 {"--extra-warnings", "-W", 0},
778 {"--for-assembler", "-Wa", "a"},
779 {"--for-linker", "-Xlinker", "a"},
780 {"--force-link", "-u", "a"},
781 {"--imacros", "-imacros", "a"},
782 {"--include", "-include", "a"},
783 {"--include-barrier", "-I-", 0},
784 {"--include-directory", "-I", "a"},
785 {"--include-directory-after", "-idirafter", "a"},
786 {"--include-prefix", "-iprefix", "a"},
787 {"--include-with-prefix", "-iwithprefix", "a"},
788 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
789 {"--include-with-prefix-after", "-iwithprefix", "a"},
790 {"--language", "-x", "a"},
791 {"--library-directory", "-L", "a"},
792 {"--machine", "-m", "aj"},
793 {"--machine-", "-m", "*j"},
794 {"--no-line-commands", "-P", 0},
795 {"--no-precompiled-includes", "-noprecomp", 0},
796 {"--no-standard-includes", "-nostdinc", 0},
797 {"--no-standard-libraries", "-nostdlib", 0},
798 {"--no-warnings", "-w", 0},
799 {"--optimize", "-O", "oj"},
800 {"--output", "-o", "a"},
801 {"--pedantic", "-pedantic", 0},
802 {"--pedantic-errors", "-pedantic-errors", 0},
803 {"--pipe", "-pipe", 0},
804 {"--prefix", "-B", "a"},
805 {"--preprocess", "-E", 0},
806 {"--print-file-name", "-print-file-name=", "aj"},
807 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
808 {"--print-missing-file-dependencies", "-MG", 0},
809 {"--print-multi-lib", "-print-multi-lib", 0},
810 {"--print-multi-directory", "-print-multi-directory", 0},
811 {"--print-prog-name", "-print-prog-name=", "aj"},
812 {"--profile", "-p", 0},
813 {"--profile-blocks", "-a", 0},
814 {"--quiet", "-q", 0},
815 {"--save-temps", "-save-temps", 0},
816 {"--shared", "-shared", 0},
817 {"--silent", "-q", 0},
818 {"--static", "-static", 0},
819 {"--symbolic", "-symbolic", 0},
820 {"--target", "-b", "a"},
821 {"--trace-includes", "-H", 0},
822 {"--traditional", "-traditional", 0},
823 {"--traditional-cpp", "-traditional-cpp", 0},
824 {"--trigraphs", "-trigraphs", 0},
825 {"--undefine-macro", "-U", "a"},
826 {"--use-version", "-V", "a"},
827 {"--user-dependencies", "-MM", 0},
828 {"--verbose", "-v", 0},
829 {"--version", "-dumpversion", 0},
830 {"--warn-", "-W", "*j"},
831 {"--write-dependencies", "-MD", 0},
832 {"--write-user-dependencies", "-MMD", 0},
836 /* Translate the options described by *ARGCP and *ARGVP.
837 Make a new vector and store it back in *ARGVP,
838 and store its length in *ARGVC. */
841 translate_options (argcp, argvp)
847 char **argv = *argvp;
848 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
852 newv[newindex++] = argv[i++];
856 /* Translate -- options. */
857 if (argv[i][0] == '-' && argv[i][1] == '-')
859 /* Find a mapping that applies to this option. */
860 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
862 int optlen = strlen (option_map[j].name);
863 int arglen = strlen (argv[i]);
864 int complen = arglen > optlen ? optlen : arglen;
865 char *arginfo = option_map[j].arg_info;
870 if (!strncmp (argv[i], option_map[j].name, complen))
877 k < sizeof (option_map) / sizeof (option_map[0]);
879 if (strlen (option_map[k].name) >= arglen
880 && !strncmp (argv[i], option_map[k].name, arglen))
882 error ("Ambiguous abbreviation %s", argv[i]);
886 if (k != sizeof (option_map) / sizeof (option_map[0]))
892 /* If the option has an argument, accept that. */
893 if (argv[i][optlen] == '=')
894 arg = argv[i] + optlen + 1;
896 /* If this mapping requires extra text at end of name,
897 accept that as "argument". */
898 else if (index (arginfo, '*') != 0)
899 arg = argv[i] + optlen;
901 /* Otherwise, extra text at end means mismatch.
902 Try other mappings. */
907 else if (index (arginfo, '*') != 0)
909 error ("Incomplete `%s' option", option_map[j].name);
913 /* Handle arguments. */
914 if (index (arginfo, 'a') != 0)
920 error ("Missing argument to `%s' option",
928 else if (index (arginfo, '*') != 0)
930 else if (index (arginfo, 'o') == 0)
933 error ("Extraneous argument to `%s' option",
938 /* Store the translation as one argv elt or as two. */
939 if (arg != 0 && index (arginfo, 'j') != 0)
940 newv[newindex++] = concat (option_map[j].equivalent,
944 newv[newindex++] = option_map[j].equivalent;
945 newv[newindex++] = arg;
948 newv[newindex++] = option_map[j].equivalent;
956 /* Handle old-fashioned options--just copy them through,
957 with their arguments. */
958 else if (argv[i][0] == '-')
960 char *p = argv[i] + 1;
964 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
965 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
966 else if (WORD_SWITCH_TAKES_ARG (p))
967 nskip += WORD_SWITCH_TAKES_ARG (p);
968 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
971 else if (! strcmp (p, "Xlinker"))
974 /* Watch out for an option at the end of the command line that
975 is missing arguments, and avoid skipping past the end of the
977 if (nskip + i > argc)
982 newv[newindex++] = argv[i++];
987 /* Ordinary operands, or +e options. */
988 newv[newindex++] = argv[i++];
997 /* Read compilation specs from a file named FILENAME,
998 replacing the default ones.
1000 A suffix which starts with `*' is a definition for
1001 one of the machine-specific sub-specs. The "suffix" should be
1002 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1003 The corresponding spec is stored in asm_spec, etc.,
1004 rather than in the `compilers' vector.
1006 Anything invalid in the file is a fatal error. */
1009 read_specs (filename)
1013 struct stat statbuf;
1018 fprintf (stderr, "Reading specs from %s\n", filename);
1020 /* Open and stat the file. */
1021 desc = open (filename, 0, 0);
1023 pfatal_with_name (filename);
1024 if (stat (filename, &statbuf) < 0)
1025 pfatal_with_name (filename);
1027 /* Read contents of file into BUFFER. */
1028 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1029 read (desc, buffer, (unsigned) statbuf.st_size);
1030 buffer[statbuf.st_size] = 0;
1033 /* Scan BUFFER for specs, putting them in the vector. */
1039 char *in, *out, *p1, *p2;
1041 /* Advance P in BUFFER to the next nonblank nocomment line. */
1042 p = skip_whitespace (p);
1046 /* Find the colon that should end the suffix. */
1048 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1049 /* The colon shouldn't be missing. */
1051 fatal ("specs file malformed after %d characters", p1 - buffer);
1052 /* Skip back over trailing whitespace. */
1054 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1055 /* Copy the suffix to a string. */
1056 suffix = save_string (p, p2 - p);
1057 /* Find the next line. */
1058 p = skip_whitespace (p1 + 1);
1060 fatal ("specs file malformed after %d characters", p - buffer);
1062 /* Find next blank line. */
1063 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1064 /* Specs end at the blank line and do not include the newline. */
1065 spec = save_string (p, p1 - p);
1068 /* Delete backslash-newline sequences from the spec. */
1073 if (in[0] == '\\' && in[1] == '\n')
1075 else if (in[0] == '#')
1077 while (*in && *in != '\n') in++;
1084 if (suffix[0] == '*')
1086 if (! strcmp (suffix, "*link_command"))
1087 link_command_spec = spec;
1089 set_spec (suffix + 1, spec);
1093 /* Add this pair to the vector. */
1095 = ((struct compiler *)
1096 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1097 compilers[n_compilers].suffix = suffix;
1098 bzero ((char *) compilers[n_compilers].spec,
1099 sizeof compilers[n_compilers].spec);
1100 compilers[n_compilers].spec[0] = spec;
1102 bzero ((char *) &compilers[n_compilers],
1103 sizeof compilers[n_compilers]);
1107 link_command_spec = spec;
1110 if (link_command_spec == 0)
1111 fatal ("spec file has no spec for linking");
1120 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1121 be considered whitespace. */
1122 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1124 else if (*p == '\n' || *p == ' ' || *p == '\t')
1128 while (*p != '\n') p++;
1138 /* Structure to keep track of the specs that have been defined so far. These
1139 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1143 char *name; /* Name of the spec. */
1144 char *spec; /* The spec itself. */
1145 struct spec_list *next; /* Next spec in linked list. */
1148 /* List of specs that have been defined so far. */
1150 static struct spec_list *specs = (struct spec_list *) 0;
1152 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1153 removed; If the spec starts with a + then SPEC is added to the end of the
1157 set_spec (name, spec)
1161 struct spec_list *sl;
1164 /* See if the spec already exists */
1165 for (sl = specs; sl; sl = sl->next)
1166 if (strcmp (sl->name, name) == 0)
1171 /* Not found - make it */
1172 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1173 sl->name = save_string (name, strlen (name));
1174 sl->spec = save_string ("", 0);
1179 old_spec = sl->spec;
1180 if (name && spec[0] == '+' && isspace (spec[1]))
1181 sl->spec = concat (old_spec, spec + 1, "");
1183 sl->spec = save_string (spec, strlen (spec));
1185 if (! strcmp (name, "asm"))
1186 asm_spec = sl->spec;
1187 else if (! strcmp (name, "asm_final"))
1188 asm_final_spec = sl->spec;
1189 else if (! strcmp (name, "cc1"))
1190 cc1_spec = sl->spec;
1191 else if (! strcmp (name, "cc1plus"))
1192 cc1plus_spec = sl->spec;
1193 else if (! strcmp (name, "cpp"))
1194 cpp_spec = sl->spec;
1195 else if (! strcmp (name, "endfile"))
1196 endfile_spec = sl->spec;
1197 else if (! strcmp (name, "lib"))
1198 lib_spec = sl->spec;
1199 else if (! strcmp (name, "link"))
1200 link_spec = sl->spec;
1201 else if (! strcmp (name, "predefines"))
1202 cpp_predefines = sl->spec;
1203 else if (! strcmp (name, "signed_char"))
1204 signed_char_spec = sl->spec;
1205 else if (! strcmp (name, "startfile"))
1206 startfile_spec = sl->spec;
1207 else if (! strcmp (name, "switches_need_spaces"))
1208 switches_need_spaces = sl->spec;
1209 else if (! strcmp (name, "cross_compile"))
1210 cross_compile = atoi (sl->spec);
1211 else if (! strcmp (name, "multilib"))
1212 multilib_select = sl->spec;
1213 /* Free the old spec */
1218 /* Accumulate a command (program name and args), and run it. */
1220 /* Vector of pointers to arguments in the current line of specifications. */
1222 static char **argbuf;
1224 /* Number of elements allocated in argbuf. */
1226 static int argbuf_length;
1228 /* Number of elements in argbuf currently in use (containing args). */
1230 static int argbuf_index;
1232 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1233 temp file. Used only if MKTEMP_EACH_FILE. */
1235 static struct temp_name {
1236 char *suffix; /* suffix associated with the code. */
1237 int length; /* strlen (suffix). */
1238 int unique; /* Indicates whether %g or %u/%U was used. */
1239 char *filename; /* associated filename. */
1240 int filename_length; /* strlen (filename). */
1241 struct temp_name *next;
1244 /* Number of commands executed so far. */
1246 static int execution_count;
1248 /* Number of commands that exited with a signal. */
1250 static int signal_count;
1252 /* Name with which this program was invoked. */
1254 static char *programname;
1256 /* Structures to keep track of prefixes to try when looking for files. */
1260 char *prefix; /* String to prepend to the path. */
1261 struct prefix_list *next; /* Next in linked list. */
1262 int require_machine_suffix; /* Don't use without machine_suffix. */
1263 /* 2 means try both machine_suffix and just_machine_suffix. */
1264 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1269 struct prefix_list *plist; /* List of prefixes to try */
1270 int max_len; /* Max length of a prefix in PLIST */
1271 char *name; /* Name of this list (used in config stuff) */
1274 /* List of prefixes to try when looking for executables. */
1276 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1278 /* List of prefixes to try when looking for startup (crt0) files. */
1280 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1282 /* List of prefixes to try when looking for include files. */
1284 static struct path_prefix include_prefix = { 0, 0, "include" };
1286 /* Suffix to attach to directories searched for commands.
1287 This looks like `MACHINE/VERSION/'. */
1289 static char *machine_suffix = 0;
1291 /* Suffix to attach to directories searched for commands.
1292 This is just `MACHINE/'. */
1294 static char *just_machine_suffix = 0;
1296 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1298 static char *gcc_exec_prefix;
1300 /* Default prefixes to attach to command names. */
1302 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1303 #undef MD_EXEC_PREFIX
1304 #undef MD_STARTFILE_PREFIX
1305 #undef MD_STARTFILE_PREFIX_1
1308 #ifndef STANDARD_EXEC_PREFIX
1309 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1310 #endif /* !defined STANDARD_EXEC_PREFIX */
1312 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1313 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1314 #ifdef MD_EXEC_PREFIX
1315 static char *md_exec_prefix = MD_EXEC_PREFIX;
1318 #ifndef STANDARD_STARTFILE_PREFIX
1319 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1320 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1322 #ifdef MD_STARTFILE_PREFIX
1323 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1325 #ifdef MD_STARTFILE_PREFIX_1
1326 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1328 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1329 static char *standard_startfile_prefix_1 = "/lib/";
1330 static char *standard_startfile_prefix_2 = "/usr/lib/";
1332 #ifndef TOOLDIR_BASE_PREFIX
1333 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1335 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1336 static char *tooldir_prefix;
1338 /* Subdirectory to use for locating libraries. Set by
1339 set_multilib_dir based on the compilation options. */
1341 static char *multilib_dir;
1343 /* Clear out the vector of arguments (after a command is executed). */
1351 /* Add one argument to the vector at the end.
1352 This is done when a space is seen or at the end of the line.
1353 If DELETE_ALWAYS is nonzero, the arg is a filename
1354 and the file should be deleted eventually.
1355 If DELETE_FAILURE is nonzero, the arg is a filename
1356 and the file should be deleted if this compilation fails. */
1359 store_arg (arg, delete_always, delete_failure)
1361 int delete_always, delete_failure;
1363 if (argbuf_index + 1 == argbuf_length)
1365 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1368 argbuf[argbuf_index++] = arg;
1369 argbuf[argbuf_index] = 0;
1371 if (delete_always || delete_failure)
1372 record_temp_file (arg, delete_always, delete_failure);
1375 /* Record the names of temporary files we tell compilers to write,
1376 and delete them at the end of the run. */
1378 /* This is the common prefix we use to make temp file names.
1379 It is chosen once for each run of this program.
1380 It is substituted into a spec by %g.
1381 Thus, all temp file names contain this prefix.
1382 In practice, all temp file names start with this prefix.
1384 This prefix comes from the envvar TMPDIR if it is defined;
1385 otherwise, from the P_tmpdir macro if that is defined;
1386 otherwise, in /usr/tmp or /tmp. */
1388 static char *temp_filename;
1390 /* Length of the prefix. */
1392 static int temp_filename_length;
1394 /* Define the list of temporary files to delete. */
1399 struct temp_file *next;
1402 /* Queue of files to delete on success or failure of compilation. */
1403 static struct temp_file *always_delete_queue;
1404 /* Queue of files to delete on failure of compilation. */
1405 static struct temp_file *failure_delete_queue;
1407 /* Record FILENAME as a file to be deleted automatically.
1408 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1409 otherwise delete it in any case.
1410 FAIL_DELETE nonzero means delete it if a compilation step fails;
1411 otherwise delete it in any case. */
1414 record_temp_file (filename, always_delete, fail_delete)
1419 register char *name;
1420 name = xmalloc (strlen (filename) + 1);
1421 strcpy (name, filename);
1425 register struct temp_file *temp;
1426 for (temp = always_delete_queue; temp; temp = temp->next)
1427 if (! strcmp (name, temp->name))
1429 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1430 temp->next = always_delete_queue;
1432 always_delete_queue = temp;
1438 register struct temp_file *temp;
1439 for (temp = failure_delete_queue; temp; temp = temp->next)
1440 if (! strcmp (name, temp->name))
1442 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1443 temp->next = failure_delete_queue;
1445 failure_delete_queue = temp;
1450 /* Delete all the temporary files whose names we previously recorded. */
1453 delete_if_ordinary (name)
1460 printf ("Delete %s? (y or n) ", name);
1464 while ((c = getchar ()) != '\n' && c != EOF) ;
1465 if (i == 'y' || i == 'Y')
1467 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1468 if (unlink (name) < 0)
1470 perror_with_name (name);
1474 delete_temp_files ()
1476 register struct temp_file *temp;
1478 for (temp = always_delete_queue; temp; temp = temp->next)
1479 delete_if_ordinary (temp->name);
1480 always_delete_queue = 0;
1483 /* Delete all the files to be deleted on error. */
1486 delete_failure_queue ()
1488 register struct temp_file *temp;
1490 for (temp = failure_delete_queue; temp; temp = temp->next)
1491 delete_if_ordinary (temp->name);
1495 clear_failure_queue ()
1497 failure_delete_queue = 0;
1500 /* Compute a string to use as the base of all temporary file names.
1501 It is substituted for %g. */
1504 choose_temp_base_try (try, base)
1511 else if (try == (char *)0)
1513 else if (access (try, R_OK | W_OK) != 0)
1526 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1527 base = choose_temp_base_try (getenv ("TMP"), base);
1528 base = choose_temp_base_try (getenv ("TEMP"), base);
1531 base = choose_temp_base_try (P_tmpdir, base);
1534 base = choose_temp_base_try ("/usr/tmp", base);
1535 base = choose_temp_base_try ("/tmp", base);
1537 /* If all else fails, use the current directory! */
1538 if (base == (char *)0)
1541 len = strlen (base);
1542 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1543 strcpy (temp_filename, base);
1544 if (len > 0 && temp_filename[len-1] != '/')
1545 temp_filename[len++] = '/';
1546 strcpy (temp_filename + len, "ccXXXXXX");
1548 mktemp (temp_filename);
1549 temp_filename_length = strlen (temp_filename);
1550 if (temp_filename_length == 0)
1555 /* Routine to add variables to the environment. We do this to pass
1556 the pathname of the gcc driver, and the directories search to the
1557 collect2 program, which is being run as ld. This way, we can be
1558 sure of executing the right compiler when collect2 wants to build
1559 constructors and destructors. Since the environment variables we
1560 use come from an obstack, we don't have to worry about allocating
1569 #ifndef VMS /* nor about VMS */
1571 extern char **environ;
1572 char **old_environ = environ;
1576 int str_len = strlen (str);
1580 while ((ch = *p++) != '\0' && ch != '=')
1586 /* Search for replacing an existing environment variable, and
1587 count the number of total environment variables. */
1588 for (envp = old_environ; *envp; envp++)
1591 if (!strncmp (str, *envp, name_len))
1598 /* Add a new environment variable */
1599 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1601 bcopy ((char *) old_environ, (char *) (environ + 1),
1602 sizeof (char *) * (num_envs+1));
1607 #endif /* HAVE_PUTENV */
1610 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1613 putenv_from_prefixes (paths, env_var)
1614 struct path_prefix *paths;
1617 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1619 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1620 int first_time = TRUE;
1621 struct prefix_list *pprefix;
1623 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1625 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1627 int len = strlen (pprefix->prefix);
1630 && is_directory (pprefix->prefix, machine_suffix, 0))
1633 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1636 obstack_grow (&collect_obstack, pprefix->prefix, len);
1637 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1640 if (just_machine_suffix
1641 && pprefix->require_machine_suffix == 2
1642 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1645 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1648 obstack_grow (&collect_obstack, pprefix->prefix, len);
1649 obstack_grow (&collect_obstack, just_machine_suffix,
1653 if (!pprefix->require_machine_suffix)
1656 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1659 obstack_grow (&collect_obstack, pprefix->prefix, len);
1662 obstack_1grow (&collect_obstack, '\0');
1663 putenv (obstack_finish (&collect_obstack));
1667 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1668 access to check permissions.
1669 Return 0 if not found, otherwise return its name, allocated with malloc. */
1672 find_a_file (pprefix, name, mode)
1673 struct path_prefix *pprefix;
1678 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1679 struct prefix_list *pl;
1680 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1683 len += strlen (machine_suffix);
1685 temp = xmalloc (len);
1687 /* Determine the filename to execute (special case for absolute paths). */
1691 if (access (name, mode))
1693 strcpy (temp, name);
1698 for (pl = pprefix->plist; pl; pl = pl->next)
1702 /* Some systems have a suffix for executable files.
1703 So try appending that first. */
1704 if (file_suffix[0] != 0)
1706 strcpy (temp, pl->prefix);
1707 strcat (temp, machine_suffix);
1708 strcat (temp, name);
1709 strcat (temp, file_suffix);
1710 if (access (temp, mode) == 0)
1712 if (pl->used_flag_ptr != 0)
1713 *pl->used_flag_ptr = 1;
1718 /* Now try just the name. */
1719 strcpy (temp, pl->prefix);
1720 strcat (temp, machine_suffix);
1721 strcat (temp, name);
1722 if (access (temp, mode) == 0)
1724 if (pl->used_flag_ptr != 0)
1725 *pl->used_flag_ptr = 1;
1730 /* Certain prefixes are tried with just the machine type,
1731 not the version. This is used for finding as, ld, etc. */
1732 if (just_machine_suffix && pl->require_machine_suffix == 2)
1734 /* Some systems have a suffix for executable files.
1735 So try appending that first. */
1736 if (file_suffix[0] != 0)
1738 strcpy (temp, pl->prefix);
1739 strcat (temp, just_machine_suffix);
1740 strcat (temp, name);
1741 strcat (temp, file_suffix);
1742 if (access (temp, mode) == 0)
1744 if (pl->used_flag_ptr != 0)
1745 *pl->used_flag_ptr = 1;
1750 strcpy (temp, pl->prefix);
1751 strcat (temp, just_machine_suffix);
1752 strcat (temp, name);
1753 if (access (temp, mode) == 0)
1755 if (pl->used_flag_ptr != 0)
1756 *pl->used_flag_ptr = 1;
1761 /* Certain prefixes can't be used without the machine suffix
1762 when the machine or version is explicitly specified. */
1763 if (!pl->require_machine_suffix)
1765 /* Some systems have a suffix for executable files.
1766 So try appending that first. */
1767 if (file_suffix[0] != 0)
1769 strcpy (temp, pl->prefix);
1770 strcat (temp, name);
1771 strcat (temp, file_suffix);
1772 if (access (temp, mode) == 0)
1774 if (pl->used_flag_ptr != 0)
1775 *pl->used_flag_ptr = 1;
1780 strcpy (temp, pl->prefix);
1781 strcat (temp, name);
1782 if (access (temp, mode) == 0)
1784 if (pl->used_flag_ptr != 0)
1785 *pl->used_flag_ptr = 1;
1795 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1796 at the start of the list, otherwise it goes at the end.
1798 If WARN is nonzero, we will warn if no file is found
1799 through this prefix. WARN should point to an int
1800 which will be set to 1 if this entry is used.
1802 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1803 the complete value of machine_suffix.
1804 2 means try both machine_suffix and just_machine_suffix. */
1807 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1808 struct path_prefix *pprefix;
1811 int require_machine_suffix;
1814 struct prefix_list *pl, **prev;
1817 if (!first && pprefix->plist)
1819 for (pl = pprefix->plist; pl->next; pl = pl->next)
1824 prev = &pprefix->plist;
1826 /* Keep track of the longest prefix */
1828 len = strlen (prefix);
1829 if (len > pprefix->max_len)
1830 pprefix->max_len = len;
1832 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1833 pl->prefix = save_string (prefix, len);
1834 pl->require_machine_suffix = require_machine_suffix;
1835 pl->used_flag_ptr = warn;
1842 pl->next = (struct prefix_list *) 0;
1846 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1849 unused_prefix_warnings (pprefix)
1850 struct path_prefix *pprefix;
1852 struct prefix_list *pl = pprefix->plist;
1856 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1858 error ("file path prefix `%s' never used",
1860 /* Prevent duplicate warnings. */
1861 *pl->used_flag_ptr = 1;
1867 /* Get rid of all prefixes built up so far in *PLISTP. */
1870 free_path_prefix (pprefix)
1871 struct path_prefix *pprefix;
1873 struct prefix_list *pl = pprefix->plist;
1874 struct prefix_list *temp;
1880 free (temp->prefix);
1881 free ((char *) temp);
1883 pprefix->plist = (struct prefix_list *) 0;
1886 /* stdin file number. */
1887 #define STDIN_FILE_NO 0
1889 /* stdout file number. */
1890 #define STDOUT_FILE_NO 1
1892 /* value of `pipe': port index for reading. */
1895 /* value of `pipe': port index for writing. */
1896 #define WRITE_PORT 1
1898 /* Pipe waiting from last process, to be used as input for the next one.
1899 Value is STDIN_FILE_NO if no pipe is waiting
1900 (i.e. the next command is the first of a group). */
1902 static int last_pipe_input;
1904 /* Fork one piped subcommand. FUNC is the system call to use
1905 (either execv or execvp). ARGV is the arg vector to use.
1906 NOT_LAST is nonzero if this is not the last subcommand
1907 (i.e. its output should be piped to the next one.) */
1912 #include <process.h>
1914 pexecute (search_flag, program, argv, not_last)
1921 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1925 int i, el = search_flag ? 0 : 4;
1927 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1928 rf = scmd + strlen(program) + 2 + el;
1929 sprintf (scmd, "%s%s @%s.gp", program,
1930 (search_flag ? "" : ".exe"), temp_filename);
1931 argfile = fopen (rf, "w");
1933 pfatal_with_name (rf);
1935 for (i=1; argv[i]; i++)
1938 for (cp = argv[i]; *cp; cp++)
1940 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1941 fputc ('\\', argfile);
1942 fputc (*cp, argfile);
1944 fputc ('\n', argfile);
1955 perror_exec (program);
1956 return MIN_FATAL_STATUS << 8;
1961 #else /* not __MSDOS__ */
1964 pexecute (search_flag, program, argv, not_last)
1970 int (*func)() = (search_flag ? execv : execvp);
1973 int input_desc = last_pipe_input;
1974 int output_desc = STDOUT_FILE_NO;
1975 int retries, sleep_interval;
1977 /* If this isn't the last process, make a pipe for its output,
1978 and record it as waiting to be the input to the next process. */
1982 if (pipe (pdes) < 0)
1983 pfatal_with_name ("pipe");
1984 output_desc = pdes[WRITE_PORT];
1985 last_pipe_input = pdes[READ_PORT];
1988 last_pipe_input = STDIN_FILE_NO;
1990 /* Fork a subprocess; wait and retry if it fails. */
1992 for (retries = 0; retries < 4; retries++)
1997 sleep (sleep_interval);
1998 sleep_interval *= 2;
2005 pfatal_with_name ("fork");
2007 pfatal_with_name ("vfork");
2013 /* Move the input and output pipes into place, if nec. */
2014 if (input_desc != STDIN_FILE_NO)
2016 close (STDIN_FILE_NO);
2020 if (output_desc != STDOUT_FILE_NO)
2022 close (STDOUT_FILE_NO);
2024 close (output_desc);
2027 /* Close the parent's descs that aren't wanted here. */
2028 if (last_pipe_input != STDIN_FILE_NO)
2029 close (last_pipe_input);
2031 /* Exec the program. */
2032 (*func) (program, argv);
2033 perror_exec (program);
2039 /* In the parent, after forking.
2040 Close the descriptors that we made for this child. */
2041 if (input_desc != STDIN_FILE_NO)
2043 if (output_desc != STDOUT_FILE_NO)
2044 close (output_desc);
2046 /* Return child's process number. */
2051 #endif /* not __MSDOS__ */
2055 pexecute (search_flag, program, argv, not_last)
2061 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2063 #endif /* not OS2 */
2065 /* Execute the command specified by the arguments on the current line of spec.
2066 When using pipes, this includes several piped-together commands
2067 with `|' between them.
2069 Return 0 if successful, -1 if failed. */
2075 int n_commands; /* # of command. */
2079 char *prog; /* program name. */
2080 char **argv; /* vector of args. */
2081 int pid; /* pid of process for this command. */
2084 struct command *commands; /* each command buffer with above info. */
2086 /* Count # of piped commands. */
2087 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2088 if (strcmp (argbuf[i], "|") == 0)
2091 /* Get storage for each command. */
2093 = (struct command *) alloca (n_commands * sizeof (struct command));
2095 /* Split argbuf into its separate piped processes,
2096 and record info about each one.
2097 Also search for the programs that are to be run. */
2099 commands[0].prog = argbuf[0]; /* first command. */
2100 commands[0].argv = &argbuf[0];
2101 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2103 commands[0].argv[0] = string;
2105 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2106 if (strcmp (argbuf[i], "|") == 0)
2107 { /* each command. */
2109 fatal ("-pipe not supported under MS-DOS");
2111 argbuf[i] = 0; /* termination of command args. */
2112 commands[n_commands].prog = argbuf[i + 1];
2113 commands[n_commands].argv = &argbuf[i + 1];
2114 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2116 commands[n_commands].argv[0] = string;
2120 argbuf[argbuf_index] = 0;
2122 /* If -v, print what we are about to do, and maybe query. */
2126 /* Print each piped command as a separate line. */
2127 for (i = 0; i < n_commands ; i++)
2131 for (j = commands[i].argv; *j; j++)
2132 fprintf (stderr, " %s", *j);
2134 /* Print a pipe symbol after all but the last command. */
2135 if (i + 1 != n_commands)
2136 fprintf (stderr, " |");
2137 fprintf (stderr, "\n");
2141 fprintf (stderr, "\nGo ahead? (y or n) ");
2145 while (getchar () != '\n') ;
2146 if (i != 'y' && i != 'Y')
2151 /* Run each piped subprocess. */
2153 last_pipe_input = STDIN_FILE_NO;
2154 for (i = 0; i < n_commands; i++)
2156 char *string = commands[i].argv[0];
2158 commands[i].pid = pexecute (string != commands[i].prog,
2159 string, commands[i].argv,
2160 i + 1 < n_commands);
2162 if (string != commands[i].prog)
2168 /* Wait for all the subprocesses to finish.
2169 We don't care what order they finish in;
2170 we know that N_COMMANDS waits will get them all. */
2175 for (i = 0; i < n_commands; i++)
2179 char *prog = "unknown";
2182 status = pid = commands[i].pid;
2184 pid = wait (&status);
2192 for (j = 0; j < n_commands; j++)
2193 if (commands[j].pid == pid)
2194 prog = commands[j].prog;
2196 if ((status & 0x7F) != 0)
2198 fatal ("Internal compiler error: program %s got fatal signal %d",
2199 prog, (status & 0x7F));
2202 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2210 /* Find all the switches given to us
2211 and make a vector describing them.
2212 The elements of the vector are strings, one per switch given.
2213 If a switch uses following arguments, then the `part1' field
2214 is the switch itself and the `args' field
2215 is a null-terminated vector containing the following arguments.
2216 The `live_cond' field is 1 if the switch is true in a conditional spec,
2217 -1 if false (overridden by a later switch), and is initialized to zero.
2218 The `valid' field is nonzero if any spec has looked at this switch;
2219 if it remains zero at the end of the run, it must be meaningless. */
2229 static struct switchstr *switches;
2231 static int n_switches;
2239 /* Also a vector of input files specified. */
2241 static struct infile *infiles;
2243 static int n_infiles;
2245 /* And a vector of corresponding output files is made up later. */
2247 static char **outfiles;
2249 /* Create the vector `switches' and its contents.
2250 Store its length in `n_switches'. */
2253 process_command (argc, argv)
2259 char *spec_lang = 0;
2260 int last_language_n_infiles;
2262 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2267 /* Figure compiler version from version string. */
2269 compiler_version = save_string (version_string, strlen (version_string));
2270 for (temp = compiler_version; *temp; ++temp)
2279 /* Set up the default search paths. */
2281 if (gcc_exec_prefix)
2283 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2284 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2287 /* COMPILER_PATH and LIBRARY_PATH have values
2288 that are lists of directory names with colons. */
2290 temp = getenv ("COMPILER_PATH");
2293 char *startp, *endp;
2294 char *nstore = (char *) alloca (strlen (temp) + 3);
2296 startp = endp = temp;
2299 if (*endp == PATH_SEPARATOR || *endp == 0)
2301 strncpy (nstore, startp, endp-startp);
2304 strcpy (nstore, "./");
2306 else if (endp[-1] != '/')
2308 nstore[endp-startp] = '/';
2309 nstore[endp-startp+1] = 0;
2312 nstore[endp-startp] = 0;
2313 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2316 endp = startp = endp + 1;
2323 temp = getenv ("LIBRARY_PATH");
2326 char *startp, *endp;
2327 char *nstore = (char *) alloca (strlen (temp) + 3);
2329 startp = endp = temp;
2332 if (*endp == PATH_SEPARATOR || *endp == 0)
2334 strncpy (nstore, startp, endp-startp);
2337 strcpy (nstore, "./");
2339 else if (endp[-1] != '/')
2341 nstore[endp-startp] = '/';
2342 nstore[endp-startp+1] = 0;
2345 nstore[endp-startp] = 0;
2346 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2349 endp = startp = endp + 1;
2356 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2357 temp = getenv ("LPATH");
2360 char *startp, *endp;
2361 char *nstore = (char *) alloca (strlen (temp) + 3);
2363 startp = endp = temp;
2366 if (*endp == PATH_SEPARATOR || *endp == 0)
2368 strncpy (nstore, startp, endp-startp);
2371 strcpy (nstore, "./");
2373 else if (endp[-1] != '/')
2375 nstore[endp-startp] = '/';
2376 nstore[endp-startp+1] = 0;
2379 nstore[endp-startp] = 0;
2380 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2383 endp = startp = endp + 1;
2390 /* Convert new-style -- options to old-style. */
2391 translate_options (&argc, &argv);
2393 /* Scan argv twice. Here, the first time, just count how many switches
2394 there will be in their vector, and how many input files in theirs.
2395 Here we also parse the switches that cc itself uses (e.g. -v). */
2397 for (i = 1; i < argc; i++)
2399 if (! strcmp (argv[i], "-dumpspecs"))
2401 printf ("*asm:\n%s\n\n", asm_spec);
2402 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2403 printf ("*cpp:\n%s\n\n", cpp_spec);
2404 printf ("*cc1:\n%s\n\n", cc1_spec);
2405 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2406 printf ("*endfile:\n%s\n\n", endfile_spec);
2407 printf ("*link:\n%s\n\n", link_spec);
2408 printf ("*lib:\n%s\n\n", lib_spec);
2409 printf ("*startfile:\n%s\n\n", startfile_spec);
2410 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2411 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2412 printf ("*predefines:\n%s\n\n", cpp_predefines);
2413 printf ("*cross_compile:\n%d\n\n", cross_compile);
2414 printf ("*multilib:\n%s\n\n", multilib_select);
2418 else if (! strcmp (argv[i], "-dumpversion"))
2420 printf ("%s\n", version_string);
2423 else if (! strcmp (argv[i], "-dumpmachine"))
2425 printf ("%s\n", spec_machine);
2428 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2429 print_file_name = "libgcc.a";
2430 else if (! strncmp (argv[i], "-print-file-name=", 17))
2431 print_file_name = argv[i] + 17;
2432 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2433 print_prog_name = argv[i] + 17;
2434 else if (! strcmp (argv[i], "-print-multi-lib"))
2435 print_multi_lib = 1;
2436 else if (! strcmp (argv[i], "-print-multi-directory"))
2437 print_multi_directory = 1;
2438 else if (! strcmp (argv[i], "-Xlinker"))
2440 /* Pass the argument of this option to the linker when we link. */
2443 fatal ("argument to `-Xlinker' is missing");
2446 if (!linker_options)
2448 = (char **) xmalloc (n_linker_options * sizeof (char **));
2451 = (char **) xrealloc (linker_options,
2452 n_linker_options * sizeof (char **));
2454 linker_options[n_linker_options - 1] = argv[++i];
2456 else if (! strncmp (argv[i], "-Wl,", 4))
2459 /* Pass the rest of this option to the linker when we link. */
2462 if (!linker_options)
2464 = (char **) xmalloc (n_linker_options * sizeof (char **));
2467 = (char **) xrealloc (linker_options,
2468 n_linker_options * sizeof (char **));
2470 /* Split the argument at commas. */
2472 for (j = 4; argv[i][j]; j++)
2473 if (argv[i][j] == ',')
2475 linker_options[n_linker_options - 1]
2476 = save_string (argv[i] + prev, j - prev);
2479 = (char **) xrealloc (linker_options,
2480 n_linker_options * sizeof (char **));
2483 /* Record the part after the last comma. */
2484 linker_options[n_linker_options - 1] = argv[i] + prev;
2486 else if (! strncmp (argv[i], "-Wa,", 4))
2489 /* Pass the rest of this option to the assembler. */
2491 n_assembler_options++;
2492 if (!assembler_options)
2494 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2497 = (char **) xrealloc (assembler_options,
2498 n_assembler_options * sizeof (char **));
2500 /* Split the argument at commas. */
2502 for (j = 4; argv[i][j]; j++)
2503 if (argv[i][j] == ',')
2505 assembler_options[n_assembler_options - 1]
2506 = save_string (argv[i] + prev, j - prev);
2507 n_assembler_options++;
2509 = (char **) xrealloc (assembler_options,
2510 n_assembler_options * sizeof (char **));
2513 /* Record the part after the last comma. */
2514 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2516 else if (! strncmp (argv[i], "-Wp,", 4))
2519 /* Pass the rest of this option to the preprocessor. */
2521 n_preprocessor_options++;
2522 if (!preprocessor_options)
2523 preprocessor_options
2524 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2526 preprocessor_options
2527 = (char **) xrealloc (preprocessor_options,
2528 n_preprocessor_options * sizeof (char **));
2530 /* Split the argument at commas. */
2532 for (j = 4; argv[i][j]; j++)
2533 if (argv[i][j] == ',')
2535 preprocessor_options[n_preprocessor_options - 1]
2536 = save_string (argv[i] + prev, j - prev);
2537 n_preprocessor_options++;
2538 preprocessor_options
2539 = (char **) xrealloc (preprocessor_options,
2540 n_preprocessor_options * sizeof (char **));
2543 /* Record the part after the last comma. */
2544 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2546 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2547 /* The +e options to the C++ front-end. */
2549 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2551 register char *p = &argv[i][1];
2552 register int c = *p;
2557 if (p[1] == 0 && i + 1 == argc)
2558 fatal ("argument to `-b' is missing");
2560 spec_machine = argv[++i];
2562 spec_machine = p + 1;
2567 int *temp = (int *) xmalloc (sizeof (int));
2569 if (p[1] == 0 && i + 1 == argc)
2570 fatal ("argument to `-B' is missing");
2575 add_prefix (&exec_prefix, value, 1, 0, temp);
2576 add_prefix (&startfile_prefix, value, 1, 0, temp);
2577 add_prefix (&include_prefix, concat (value, "include", ""),
2580 /* As a kludge, if the arg is "[foo/]stageN/", just add
2581 "[foo/]include" to the include prefix. */
2583 int len = strlen (value);
2584 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2585 && strncmp (value + len - 7, "stage", 5) == 0
2586 && isdigit (value[len - 2])
2587 && value[len - 1] == '/')
2590 add_prefix (&include_prefix, "include", 1, 0, 0);
2593 char *string = xmalloc (len + 1);
2594 strncpy (string, value, len-7);
2595 strcat (string, "include");
2596 add_prefix (&include_prefix, string, 1, 0, 0);
2603 case 'v': /* Print our subcommands and print versions. */
2605 /* If they do anything other than exactly `-v', don't set
2606 verbose_flag; rather, continue on to give the error. */
2613 if (p[1] == 0 && i + 1 == argc)
2614 fatal ("argument to `-V' is missing");
2616 spec_version = argv[++i];
2618 spec_version = p + 1;
2619 compiler_version = spec_version;
2623 if (!strcmp (p, "save-temps"))
2625 save_temps_flag = 1;
2632 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2633 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2634 else if (WORD_SWITCH_TAKES_ARG (p))
2635 i += WORD_SWITCH_TAKES_ARG (p);
2642 /* Set up the search paths before we go looking for config files. */
2644 /* These come before the md prefixes so that we will find gcc's subcommands
2645 (such as cpp) rather than those of the host system. */
2646 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2647 as well as trying the machine and the version. */
2648 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2649 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2651 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2652 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2654 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2656 /* If tooldir is relative, base it on exec_prefix. A relative
2657 tooldir lets us move the installed tree as a unit.
2659 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2660 directories, so that we can search both the user specified directory
2661 and the standard place. */
2663 if (*tooldir_prefix != '/')
2665 if (gcc_exec_prefix)
2667 char *gcc_exec_tooldir_prefix
2668 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2669 concat (spec_version, "/", tooldir_prefix),
2672 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2674 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2678 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2679 concat (spec_version, "/", tooldir_prefix),
2683 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2685 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2688 /* More prefixes are enabled in main, after we read the specs file
2689 and determine whether this is cross-compilation or not. */
2692 /* Then create the space for the vectors and scan again. */
2694 switches = ((struct switchstr *)
2695 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2696 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2699 last_language_n_infiles = -1;
2701 /* This, time, copy the text of each switch and store a pointer
2702 to the copy in the vector of switches.
2703 Store all the infiles in their vector. */
2705 for (i = 1; i < argc; i++)
2707 /* Just skip the switches that were handled by the preceding loop. */
2708 if (!strcmp (argv[i], "-Xlinker"))
2710 else if (! strncmp (argv[i], "-Wl,", 4))
2712 else if (! strncmp (argv[i], "-Wa,", 4))
2714 else if (! strncmp (argv[i], "-Wp,", 4))
2716 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2718 else if (! strncmp (argv[i], "-print-file-name=", 17))
2720 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2722 else if (! strcmp (argv[i], "-print-multi-lib"))
2724 else if (! strcmp (argv[i], "-print-multi-directory"))
2726 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2728 /* Compensate for the +e options to the C++ front-end;
2729 they're there simply for cfront call-compatibility. We do
2730 some magic in default_compilers to pass them down properly.
2731 Note we deliberately start at the `+' here, to avoid passing
2732 -e0 or -e1 down into the linker. */
2733 switches[n_switches].part1 = &argv[i][0];
2734 switches[n_switches].args = 0;
2735 switches[n_switches].live_cond = 0;
2736 switches[n_switches].valid = 0;
2739 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2741 register char *p = &argv[i][1];
2742 register int c = *p;
2744 if (c == 'B' || c == 'b' || c == 'V')
2746 /* Skip a separate arg, if any. */
2753 if (p[1] == 0 && i + 1 == argc)
2754 fatal ("argument to `-x' is missing");
2756 spec_lang = argv[++i];
2759 if (! strcmp (spec_lang, "none"))
2760 /* Suppress the warning if -xnone comes after the last input file,
2761 because alternate command interfaces like g++ might find it
2762 useful to place -xnone after each input file. */
2765 last_language_n_infiles = n_infiles;
2768 switches[n_switches].part1 = p;
2769 /* Deal with option arguments in separate argv elements. */
2770 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2771 || WORD_SWITCH_TAKES_ARG (p))
2774 int n_args = WORD_SWITCH_TAKES_ARG (p);
2778 /* Count only the option arguments in separate argv elements. */
2779 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2781 if (i + n_args >= argc)
2782 fatal ("argument to `-%s' is missing", p);
2783 switches[n_switches].args
2784 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2786 switches[n_switches].args[j++] = argv[++i];
2787 /* Null-terminate the vector. */
2788 switches[n_switches].args[j] = 0;
2790 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2792 /* On some systems, ld cannot handle -o or -L without space.
2793 So split the -o or -L from its argument. */
2794 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2795 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2796 switches[n_switches].args[0] = xmalloc (strlen (p));
2797 strcpy (switches[n_switches].args[0], &p[1]);
2798 switches[n_switches].args[1] = 0;
2801 switches[n_switches].args = 0;
2803 switches[n_switches].live_cond = 0;
2804 switches[n_switches].valid = 0;
2805 /* This is always valid, since gcc.c itself understands it. */
2806 if (!strcmp (p, "save-temps"))
2807 switches[n_switches].valid = 1;
2812 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2813 && strcmp (argv[i], "-")
2814 && access (argv[i], R_OK) < 0)
2816 perror_with_name (argv[i]);
2821 infiles[n_infiles].language = spec_lang;
2822 infiles[n_infiles++].name = argv[i];
2827 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2828 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2830 switches[n_switches].part1 = 0;
2831 infiles[n_infiles].name = 0;
2833 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2834 if (gcc_exec_prefix)
2836 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2837 + strlen (spec_machine) + 3);
2838 strcpy (temp, gcc_exec_prefix);
2839 strcat (temp, spec_machine);
2841 strcat (temp, spec_version);
2843 gcc_exec_prefix = temp;
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], "|"))
2964 for (i = 0; i < n_switches; i++)
2965 if (!strcmp (switches[i].part1, "pipe"))
2968 /* A `|' before the newline means use a pipe here,
2969 but only if -pipe was specified.
2970 Otherwise, execute now and don't pass the `|' as an arg. */
2973 input_from_pipe = 1;
2974 switches[i].valid = 1;
2981 if (argbuf_index > 0)
2987 /* Reinitialize for a new command, and for a new argument. */
2990 delete_this_arg = 0;
2991 this_is_output_file = 0;
2992 this_is_library_file = 0;
2993 input_from_pipe = 0;
2997 /* End any pending argument. */
3000 obstack_1grow (&obstack, 0);
3001 string = obstack_finish (&obstack);
3002 if (this_is_library_file)
3003 string = find_file (string);
3004 store_arg (string, delete_this_arg, this_is_output_file);
3005 if (this_is_output_file)
3006 outfiles[input_file_number] = string;
3010 obstack_1grow (&obstack, c);
3016 /* Space or tab ends an argument if one is pending. */
3019 obstack_1grow (&obstack, 0);
3020 string = obstack_finish (&obstack);
3021 if (this_is_library_file)
3022 string = find_file (string);
3023 store_arg (string, delete_this_arg, this_is_output_file);
3024 if (this_is_output_file)
3025 outfiles[input_file_number] = string;
3027 /* Reinitialize for a new argument. */
3029 delete_this_arg = 0;
3030 this_is_output_file = 0;
3031 this_is_library_file = 0;
3038 fatal ("Invalid specification! Bug in cc.");
3041 obstack_grow (&obstack, input_basename, basename_length);
3046 delete_this_arg = 2;
3049 /* Dump out the directories specified with LIBRARY_PATH,
3050 followed by the absolute directories
3051 that we search for startfiles. */
3054 struct prefix_list *pl = startfile_prefix.plist;
3056 char *buffer = (char *) xmalloc (bufsize);
3059 for (; pl; pl = pl->next)
3061 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3062 /* Used on systems which record the specified -L dirs
3063 and use them to search for dynamic linking. */
3064 /* Relative directories always come from -B,
3065 and it is better not to use them for searching
3066 at run time. In particular, stage1 loses */
3067 if (pl->prefix[0] != '/')
3070 /* Try subdirectory if there is one. */
3071 if (multilib_dir != NULL)
3075 if (strlen (pl->prefix) + strlen (machine_suffix)
3077 bufsize = (strlen (pl->prefix)
3078 + strlen (machine_suffix)) * 2 + 1;
3079 buffer = (char *) xrealloc (buffer, bufsize);
3080 strcpy (buffer, pl->prefix);
3081 strcat (buffer, machine_suffix);
3082 if (is_directory (buffer, multilib_dir, 1))
3084 do_spec_1 ("-L", 0, NULL_PTR);
3085 #ifdef SPACE_AFTER_L_OPTION
3086 do_spec_1 (" ", 0, NULL_PTR);
3088 do_spec_1 (buffer, 1, NULL_PTR);
3089 do_spec_1 (multilib_dir, 1, NULL_PTR);
3090 /* Make this a separate argument. */
3091 do_spec_1 (" ", 0, NULL_PTR);
3094 if (!pl->require_machine_suffix)
3096 if (is_directory (pl->prefix, multilib_dir, 1))
3098 do_spec_1 ("-L", 0, NULL_PTR);
3099 #ifdef SPACE_AFTER_L_OPTION
3100 do_spec_1 (" ", 0, NULL_PTR);
3102 do_spec_1 (pl->prefix, 1, NULL_PTR);
3103 do_spec_1 (multilib_dir, 1, NULL_PTR);
3104 /* Make this a separate argument. */
3105 do_spec_1 (" ", 0, NULL_PTR);
3111 if (is_directory (pl->prefix, machine_suffix, 1))
3113 do_spec_1 ("-L", 0, NULL_PTR);
3114 #ifdef SPACE_AFTER_L_OPTION
3115 do_spec_1 (" ", 0, NULL_PTR);
3117 do_spec_1 (pl->prefix, 1, NULL_PTR);
3118 /* Remove slash from machine_suffix. */
3119 if (strlen (machine_suffix) >= bufsize)
3120 bufsize = strlen (machine_suffix) * 2 + 1;
3121 buffer = (char *) xrealloc (buffer, bufsize);
3122 strcpy (buffer, machine_suffix);
3123 idx = strlen (buffer);
3124 if (buffer[idx - 1] == '/')
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] = 0;
3147 do_spec_1 (buffer, 1, NULL_PTR);
3148 /* Make this a separate argument. */
3149 do_spec_1 (" ", 0, NULL_PTR);
3158 /* {...:%efoo} means report an error with `foo' as error message
3159 and don't execute any more commands for this file. */
3163 while (*p != 0 && *p != '\n') p++;
3164 buf = (char *) alloca (p - q + 1);
3165 strncpy (buf, q, p - q);
3175 if (save_temps_flag)
3177 obstack_grow (&obstack, input_basename, basename_length);
3178 delete_this_arg = 0;
3182 #ifdef MKTEMP_EACH_FILE
3183 /* ??? This has a problem: the total number of
3184 values mktemp can return is limited.
3185 That matters for the names of object files.
3186 In 2.4, do something about that. */
3187 struct temp_name *t;
3189 while (*p == '.' || isalpha (*p))
3192 /* See if we already have an association of %g/%u/%U and
3194 for (t = temp_names; t; t = t->next)
3195 if (t->length == p - suffix
3196 && strncmp (t->suffix, suffix, p - suffix) == 0
3197 && t->unique == (c != 'g'))
3200 /* Make a new association if needed. %u requires one. */
3201 if (t == 0 || c == 'u')
3205 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3206 t->next = temp_names;
3209 t->length = p - suffix;
3210 t->suffix = save_string (suffix, p - suffix);
3211 t->unique = (c != 'g');
3212 choose_temp_base ();
3213 t->filename = temp_filename;
3214 t->filename_length = temp_filename_length;
3217 obstack_grow (&obstack, t->filename, t->filename_length);
3218 delete_this_arg = 1;
3220 obstack_grow (&obstack, temp_filename, temp_filename_length);
3221 if (c == 'u' || c == 'U')
3227 sprintf (buff, "%d", unique);
3228 obstack_grow (&obstack, buff, strlen (buff));
3231 delete_this_arg = 1;
3237 obstack_grow (&obstack, input_filename, input_filename_length);
3243 struct prefix_list *pl = include_prefix.plist;
3245 if (gcc_exec_prefix)
3247 do_spec_1 ("-iprefix", 1, NULL_PTR);
3248 /* Make this a separate argument. */
3249 do_spec_1 (" ", 0, NULL_PTR);
3250 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3251 do_spec_1 (" ", 0, NULL_PTR);
3254 for (; pl; pl = pl->next)
3256 do_spec_1 ("-isystem", 1, NULL_PTR);
3257 /* Make this a separate argument. */
3258 do_spec_1 (" ", 0, NULL_PTR);
3259 do_spec_1 (pl->prefix, 1, NULL_PTR);
3260 do_spec_1 (" ", 0, NULL_PTR);
3268 for (f = 0; f < n_infiles; f++)
3269 store_arg (outfiles[f], 0, 0);
3274 this_is_library_file = 1;
3278 this_is_output_file = 1;
3283 int index = argbuf_index;
3284 /* Handle the {...} following the %W. */
3287 p = handle_braces (p + 1);
3290 /* If any args were output, mark the last one for deletion
3292 if (argbuf_index != index)
3293 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3297 /* %x{OPTION} records OPTION for %X to output. */
3303 /* Skip past the option value and make a copy. */
3308 string = save_string (p1 + 1, p - p1 - 2);
3310 /* See if we already recorded this option. */
3311 for (i = 0; i < n_linker_options; i++)
3312 if (! strcmp (string, linker_options[i]))
3318 /* This option is new; add it. */
3320 if (!linker_options)
3322 = (char **) xmalloc (n_linker_options * sizeof (char **));
3325 = (char **) xrealloc (linker_options,
3326 n_linker_options * sizeof (char **));
3328 linker_options[n_linker_options - 1] = string;
3332 /* Dump out the options accumulated previously using %x,
3333 -Xlinker and -Wl,. */
3335 for (i = 0; i < n_linker_options; i++)
3337 do_spec_1 (linker_options[i], 1, NULL_PTR);
3338 /* Make each accumulated option a separate argument. */
3339 do_spec_1 (" ", 0, NULL_PTR);
3343 /* Dump out the options accumulated previously using -Wa,. */
3345 for (i = 0; i < n_assembler_options; i++)
3347 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3348 /* Make each accumulated option a separate argument. */
3349 do_spec_1 (" ", 0, NULL_PTR);
3353 /* Dump out the options accumulated previously using -Wp,. */
3355 for (i = 0; i < n_preprocessor_options; i++)
3357 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3358 /* Make each accumulated option a separate argument. */
3359 do_spec_1 (" ", 0, NULL_PTR);
3363 /* Here are digits and numbers that just process
3364 a certain constant string as a spec. */
3367 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3373 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3379 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3385 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3391 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3397 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3403 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3409 value = do_spec_1 (link_spec, 0, NULL_PTR);
3415 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3422 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3426 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3430 if (! strncmp (y, "-D", 2))
3431 /* Copy the whole option. */
3432 while (*y && *y != ' ' && *y != '\t')
3434 else if (*y == ' ' || *y == '\t')
3435 /* Copy whitespace to the result. */
3437 /* Don't copy other options. */
3444 value = do_spec_1 (buf, 0, NULL_PTR);
3452 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3456 /* Copy all of CPP_PREDEFINES into BUF,
3457 but put __ after every -D and at the end of each arg. */
3461 if (! strncmp (y, "-D", 2))
3469 || (*(y+1) != '_' && ! isupper (*(y+1))))
3471 /* Stick __ at front of macro name. */
3474 /* Arrange to stick __ at the end as well. */
3478 /* Copy the macro name. */
3479 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3488 /* Copy the value given, if any. */
3489 while (*y && *y != ' ' && *y != '\t')
3492 else if (*y == ' ' || *y == '\t')
3493 /* Copy whitespace to the result. */
3495 /* Don't copy -A options */
3501 /* Copy all of CPP_PREDEFINES into BUF,
3502 but put __ after every -D. */
3506 if (! strncmp (y, "-D", 2))
3511 || (*(y+1) != '_' && ! isupper (*(y+1))))
3513 /* Stick -D__ at front of macro name. */
3519 /* Copy the macro name. */
3520 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3523 /* Copy the value given, if any. */
3524 while (*y && *y != ' ' && *y != '\t')
3529 /* Do not copy this macro - we have just done it before */
3530 while (*y && *y != ' ' && *y != '\t')
3534 else if (*y == ' ' || *y == '\t')
3535 /* Copy whitespace to the result. */
3537 /* Don't copy -A options */
3543 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3547 if (! strncmp (y, "-A", 2))
3548 /* Copy the whole option. */
3549 while (*y && *y != ' ' && *y != '\t')
3551 else if (*y == ' ' || *y == '\t')
3552 /* Copy whitespace to the result. */
3554 /* Don't copy other options. */
3561 value = do_spec_1 (buf, 0, NULL_PTR);
3568 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3573 /* Here we define characters other than letters and digits. */
3576 p = handle_braces (p);
3582 obstack_1grow (&obstack, '%');
3586 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3587 do_spec_1 (" ", 0, NULL_PTR);
3590 /* Process a string found as the value of a spec given by name.
3591 This feature allows individual machine descriptions
3592 to add and use their own specs.
3593 %[...] modifies -D options the way %P does;
3594 %(...) uses the spec unmodified. */
3599 struct spec_list *sl;
3602 /* The string after the S/P is the name of a spec that is to be
3604 while (*p && *p != ')' && *p != ']')
3607 /* See if it's in the list */
3608 for (len = p - name, sl = specs; sl; sl = sl->next)
3609 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3619 value = do_spec_1 (name, 0, NULL_PTR);
3625 char *x = (char *) alloca (strlen (name) * 2 + 1);
3629 /* Copy all of NAME into BUF, but put __ after
3630 every -D and at the end of each arg, */
3633 if (! strncmp (y, "-D", 2))
3641 else if (*y == ' ' || *y == 0)
3655 value = do_spec_1 (buf, 0, NULL_PTR);
3661 /* Discard the closing paren or bracket. */
3669 int c1 = *p++; /* Select first or second version number. */
3670 char *v = compiler_version;
3672 /* If desired, advance to second version number. */
3675 /* Set P after the first period. */
3676 while (*v != 0 && *v != ' ' && *v != '.')
3681 /* Set Q at the next period or at the end. */
3683 while (*q != 0 && *q != ' ' && *q != '.')
3685 /* Empty string means zero. */
3691 /* Put that part into the command. */
3692 obstack_grow (&obstack, v, q - v);
3698 if (input_from_pipe)
3699 do_spec_1 ("-", 0, NULL_PTR);
3708 /* Backslash: treat next character as ordinary. */
3713 /* Ordinary character: put it into the current argument. */
3714 obstack_1grow (&obstack, c);
3718 return 0; /* End of string */
3721 /* Return 0 if we call do_spec_1 and that returns -1. */
3734 /* A `|' after the open-brace means,
3735 if the test fails, output a single minus sign rather than nothing.
3736 This is used in %{|!pipe:...}. */
3740 /* A `!' after the open-brace negates the condition:
3741 succeed if the specified switch is not present. */
3745 /* A `.' after the open-brace means test against the current suffix. */
3755 while (*p != ':' && *p != '}') p++;
3758 register int count = 1;
3776 int found = (input_suffix != 0
3777 && strlen (input_suffix) == p - filter
3778 && strncmp (input_suffix, filter, p - filter) == 0);
3784 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3789 else if (p[-1] == '*' && p[0] == '}')
3791 /* Substitute all matching switches as separate args. */
3794 for (i = 0; i < n_switches; i++)
3795 if (!strncmp (switches[i].part1, filter, p - filter)
3796 && check_live_switch (i, p - filter))
3801 /* Test for presence of the specified switch. */
3805 /* If name specified ends in *, as in {x*:...},
3806 check for %* and handle that case. */
3807 if (p[-1] == '*' && !negate)
3812 /* First see whether we have %*. */
3816 if (*r == '%' && r[1] == '*')
3820 /* If we do, handle that case. */
3823 /* Substitute all matching switches as separate args.
3824 But do this by substituting for %*
3825 in the text that follows the colon. */
3827 unsigned hard_match_len = p - filter - 1;
3828 char *string = save_string (p + 1, q - p - 2);
3830 for (i = 0; i < n_switches; i++)
3831 if (!strncmp (switches[i].part1, filter, hard_match_len)
3832 && check_live_switch (i, -1))
3834 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3835 /* Pass any arguments this switch has. */
3843 /* If name specified ends in *, as in {x*:...},
3844 check for presence of any switch name starting with x. */
3847 for (i = 0; i < n_switches; i++)
3849 unsigned hard_match_len = p - filter - 1;
3851 if (!strncmp (switches[i].part1, filter, hard_match_len)
3852 && check_live_switch (i, hard_match_len))
3858 /* Otherwise, check for presence of exact name specified. */
3861 for (i = 0; i < n_switches; i++)
3863 if (!strncmp (switches[i].part1, filter, p - filter)
3864 && switches[i].part1[p - filter] == 0
3865 && check_live_switch (i, -1))
3873 /* If it is as desired (present for %{s...}, absent for %{-s...})
3874 then substitute either the switch or the specified
3875 conditional text. */
3876 if (present != negate)
3884 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3890 /* Here if a %{|...} conditional fails: output a minus sign,
3891 which means "standard output" or "standard input". */
3892 do_spec_1 ("-", 0, NULL_PTR);
3899 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3900 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3901 spec, or -1 if either exact match or %* is used.
3903 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3904 whose value does not begin with "no-" is obsoleted by the same value
3905 with the "no-", similarly for a switch with the "no-" prefix. */
3908 check_live_switch (switchnum, prefix_length)
3912 char *name = switches[switchnum].part1;
3915 /* In the common case of {<at-most-one-letter>*}, a negating
3916 switch would always match, so ignore that case. We will just
3917 send the conflicting switches to the compiler phase. */
3918 if (prefix_length >= 0 && prefix_length <= 1)
3921 /* If we already processed this switch and determined if it was
3922 live or not, return our past determination. */
3923 if (switches[switchnum].live_cond != 0)
3924 return switches[switchnum].live_cond > 0;
3926 /* Now search for duplicate in a manner that depends on the name. */
3930 for (i = switchnum + 1; i < n_switches; i++)
3931 if (switches[i].part1[0] == 'O')
3933 switches[switchnum].valid = 1;
3934 switches[switchnum].live_cond = -1;
3939 case 'W': case 'f': case 'm':
3940 if (! strncmp (name + 1, "no-", 3))
3942 /* We have Xno-YYY, search for XYYY. */
3943 for (i = switchnum + 1; i < n_switches; i++)
3944 if (switches[i].part1[0] == name[0]
3945 && ! strcmp (&switches[i].part1[1], &name[4]))
3947 switches[switchnum].valid = 1;
3948 switches[switchnum].live_cond = -1;
3954 /* We have XYYY, search for Xno-YYY. */
3955 for (i = switchnum + 1; i < n_switches; i++)
3956 if (switches[i].part1[0] == name[0]
3957 && switches[i].part1[1] == 'n'
3958 && switches[i].part1[2] == 'o'
3959 && switches[i].part1[3] == '-'
3960 && !strcmp (&switches[i].part1[4], &name[1]))
3962 switches[switchnum].valid = 1;
3963 switches[switchnum].live_cond = -1;
3970 /* Otherwise the switch is live. */
3971 switches[switchnum].live_cond = 1;
3975 /* Pass a switch to the current accumulating command
3976 in the same form that we received it.
3977 SWITCHNUM identifies the switch; it is an index into
3978 the vector of switches gcc received, which is `switches'.
3979 This cannot fail since it never finishes a command line.
3981 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3984 give_switch (switchnum, omit_first_word)
3986 int omit_first_word;
3988 if (!omit_first_word)
3990 do_spec_1 ("-", 0, NULL_PTR);
3991 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3993 do_spec_1 (" ", 0, NULL_PTR);
3994 if (switches[switchnum].args != 0)
3997 for (p = switches[switchnum].args; *p; p++)
3999 do_spec_1 (*p, 1, NULL_PTR);
4000 do_spec_1 (" ", 0, NULL_PTR);
4003 switches[switchnum].valid = 1;
4006 /* Search for a file named NAME trying various prefixes including the
4007 user's -B prefix and some standard ones.
4008 Return the absolute file name found. If nothing is found, return NAME. */
4016 /* Try multilib_dir if it is defined. */
4017 if (multilib_dir != NULL)
4021 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4022 strcpy (try, multilib_dir);
4026 newname = find_a_file (&startfile_prefix, try, R_OK);
4028 /* If we don't find it in the multi library dir, then fall
4029 through and look for it in the normal places. */
4030 if (newname != NULL)
4034 newname = find_a_file (&startfile_prefix, name, R_OK);
4035 return newname ? newname : name;
4038 /* Determine whether a directory exists. If LINKER, return 0 for
4039 certain fixed names not needed by the linker. If not LINKER, it is
4040 only important to return 0 if the host machine has a small ARG_MAX
4044 is_directory (path1, path2, linker)
4049 int len1 = strlen (path1);
4050 int len2 = strlen (path2);
4051 char *path = (char *) alloca (3 + len1 + len2);
4055 #ifndef SMALL_ARG_MAX
4060 /* Construct the path from the two parts. Ensure the string ends with "/.".
4061 The resulting path will be a directory even if the given path is a
4063 bcopy (path1, path, len1);
4064 bcopy (path2, path + len1, len2);
4065 cp = path + len1 + len2;
4071 /* Exclude directories that the linker is known to search. */
4073 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
4074 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
4077 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4080 /* On fatal signals, delete all the temporary files. */
4083 fatal_error (signum)
4086 signal (signum, SIG_DFL);
4087 delete_failure_queue ();
4088 delete_temp_files ();
4089 /* Get the same signal again, this time not handled,
4090 so its normal effect occurs. */
4091 kill (getpid (), signum);
4102 int linker_was_run = 0;
4103 char *explicit_link_files;
4107 p = argv[0] + strlen (argv[0]);
4108 while (p != argv[0] && p[-1] != '/') --p;
4111 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4112 signal (SIGINT, fatal_error);
4114 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4115 signal (SIGHUP, fatal_error);
4117 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4118 signal (SIGTERM, fatal_error);
4120 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4121 signal (SIGPIPE, fatal_error);
4125 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4127 obstack_init (&obstack);
4129 /* Set up to remember the pathname of gcc and any options
4130 needed for collect. We use argv[0] instead of programname because
4131 we need the complete pathname. */
4132 obstack_init (&collect_obstack);
4133 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4134 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4135 putenv (obstack_finish (&collect_obstack));
4137 /* Choose directory for temp files. */
4139 choose_temp_base ();
4141 /* Make a table of what switches there are (switches, n_switches).
4142 Make a table of specified input files (infiles, n_infiles).
4143 Decode switches that are handled locally. */
4145 process_command (argc, argv);
4147 /* Initialize the vector of specs to just the default.
4148 This means one element containing 0s, as a terminator. */
4150 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4151 bcopy ((char *) default_compilers, (char *) compilers,
4152 sizeof default_compilers);
4153 n_compilers = n_default_compilers;
4155 /* Read specs from a file if there is one. */
4157 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
4158 just_machine_suffix = concat (spec_machine, "/", "");
4160 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
4161 /* Read the specs file unless it is a default one. */
4162 if (specs_file != 0 && strcmp (specs_file, "specs"))
4163 read_specs (specs_file);
4165 /* If not cross-compiling, look for startfiles in the standard places. */
4166 /* The fact that these are done here, after reading the specs file,
4167 means that it cannot be found in these directories.
4168 But that's okay. It should never be there anyway. */
4171 #ifdef MD_EXEC_PREFIX
4172 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4173 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4176 #ifdef MD_STARTFILE_PREFIX
4177 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
4180 #ifdef MD_STARTFILE_PREFIX_1
4181 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
4184 /* If standard_startfile_prefix is relative, base it on
4185 standard_exec_prefix. This lets us move the installed tree
4186 as a unit. If GCC_EXEC_PREFIX is defined, base
4187 standard_startfile_prefix on that as well. */
4188 if (*standard_startfile_prefix == '/')
4189 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
4193 if (gcc_exec_prefix)
4194 add_prefix (&startfile_prefix,
4195 concat (gcc_exec_prefix,
4196 standard_startfile_prefix,
4199 add_prefix (&startfile_prefix,
4200 concat (standard_exec_prefix,
4202 standard_startfile_prefix),
4206 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
4208 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
4210 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4211 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
4215 /* Now we have the specs.
4216 Set the `valid' bits for switches that match anything in any spec. */
4218 validate_all_switches ();
4220 /* Now that we have the switches and the specs, set
4221 the subdirectory based on the options. */
4222 set_multilib_dir ();
4224 /* Warn about any switches that no pass was interested in. */
4226 for (i = 0; i < n_switches; i++)
4227 if (! switches[i].valid)
4228 error ("unrecognized option `-%s'", switches[i].part1);
4230 /* Obey some of the options. */
4232 if (print_file_name)
4234 printf ("%s\n", find_file (print_file_name));
4238 if (print_prog_name)
4240 char *newname = find_a_file (&exec_prefix, print_prog_name, X_OK);
4241 printf ("%s\n", (newname ? newname : print_prog_name));
4245 if (print_multi_lib)
4247 print_multilib_info ();
4251 if (print_multi_directory)
4253 if (multilib_dir == NULL)
4256 printf ("%s\n", multilib_dir);
4262 fprintf (stderr, "gcc version %s\n", version_string);
4268 fatal ("No input files");
4270 /* Make a place to record the compiler output file names
4271 that correspond to the input files. */
4273 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4274 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4276 /* Record which files were specified explicitly as link input. */
4278 explicit_link_files = xmalloc (n_infiles);
4279 bzero (explicit_link_files, n_infiles);
4281 for (i = 0; i < n_infiles; i++)
4283 register struct compiler *cp = 0;
4284 int this_file_error = 0;
4286 /* Tell do_spec what to substitute for %i. */
4288 input_filename = infiles[i].name;
4289 input_filename_length = strlen (input_filename);
4290 input_file_number = i;
4292 /* Use the same thing in %o, unless cp->spec says otherwise. */
4294 outfiles[i] = input_filename;
4296 /* Figure out which compiler from the file's suffix. */
4298 cp = lookup_compiler (infiles[i].name, input_filename_length,
4299 infiles[i].language);
4303 /* Ok, we found an applicable compiler. Run its spec. */
4304 /* First say how much of input_filename to substitute for %b */
4308 input_basename = input_filename;
4309 for (p = input_filename; *p; p++)
4311 input_basename = p + 1;
4313 /* Find a suffix starting with the last period,
4314 and set basename_length to exclude that suffix. */
4315 basename_length = strlen (input_basename);
4316 p = input_basename + basename_length;
4317 while (p != input_basename && *p != '.') --p;
4318 if (*p == '.' && p != input_basename)
4320 basename_length = p - input_basename;
4321 input_suffix = p + 1;
4327 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4329 len += strlen (cp->spec[j]);
4331 p = (char *) xmalloc (len + 1);
4334 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4337 strcpy (p + len, cp->spec[j]);
4338 len += strlen (cp->spec[j]);
4341 value = do_spec (p);
4344 this_file_error = 1;
4347 /* If this file's name does not contain a recognized suffix,
4348 record it as explicit linker input. */
4351 explicit_link_files[i] = 1;
4353 /* Clear the delete-on-failure queue, deleting the files in it
4354 if this compilation failed. */
4356 if (this_file_error)
4358 delete_failure_queue ();
4361 /* If this compilation succeeded, don't delete those files later. */
4362 clear_failure_queue ();
4365 /* Run ld to link all the compiler output files. */
4367 if (error_count == 0)
4369 int tmp = execution_count;
4373 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4375 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4376 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4378 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4380 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4381 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4384 for (i = 0; i < n_switches; i++)
4388 obstack_grow (&collect_obstack, " ", 1);
4391 obstack_grow (&collect_obstack, "-", 1);
4392 obstack_grow (&collect_obstack, switches[i].part1,
4393 strlen (switches[i].part1));
4395 for (args = switches[i].args; args && *args; args++)
4397 obstack_grow (&collect_obstack, " ", 1);
4398 obstack_grow (&collect_obstack, *args, strlen (*args));
4401 obstack_grow (&collect_obstack, "\0", 1);
4402 putenv (obstack_finish (&collect_obstack));
4404 value = do_spec (link_command_spec);
4407 linker_was_run = (tmp != execution_count);
4410 /* Warn if a -B option was specified but the prefix was never used. */
4411 unused_prefix_warnings (&exec_prefix);
4412 unused_prefix_warnings (&startfile_prefix);
4414 /* If options said don't run linker,
4415 complain about input files to be given to the linker. */
4417 if (! linker_was_run && error_count == 0)
4418 for (i = 0; i < n_infiles; i++)
4419 if (explicit_link_files[i])
4420 error ("%s: linker input file unused since linking not done",
4423 /* Delete some or all of the temporary files we made. */
4426 delete_failure_queue ();
4427 delete_temp_files ();
4429 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4434 /* Find the proper compilation spec for the file name NAME,
4435 whose length is LENGTH. LANGUAGE is the specified language,
4436 or 0 if none specified. */
4438 static struct compiler *
4439 lookup_compiler (name, length, language)
4444 struct compiler *cp;
4446 /* Look for the language, if one is spec'd. */
4449 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4453 if (cp->suffix[0] == '@'
4454 && !strcmp (cp->suffix + 1, language))
4458 error ("language %s not recognized", language);
4461 /* Look for a suffix. */
4462 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4464 if (/* The suffix `-' matches only the file name `-'. */
4465 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4467 (strlen (cp->suffix) < length
4468 /* See if the suffix matches the end of NAME. */
4469 && !strcmp (cp->suffix,
4470 name + length - strlen (cp->suffix))))
4472 if (cp->spec[0][0] == '@')
4474 struct compiler *new;
4475 /* An alias entry maps a suffix to a language.
4476 Search for the language; pass 0 for NAME and LENGTH
4477 to avoid infinite recursion if language not found.
4478 Construct the new compiler spec. */
4479 language = cp->spec[0] + 1;
4480 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4481 new->suffix = cp->suffix;
4482 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4483 (char *) new->spec, sizeof new->spec);
4486 /* A non-alias entry: return it. */
4498 register char *value = (char *) malloc (size);
4500 fatal ("virtual memory exhausted");
4505 xrealloc (ptr, size)
4509 register char *value = (char *) realloc (ptr, size);
4511 fatal ("virtual memory exhausted");
4515 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4521 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4522 char *result = xmalloc (len1 + len2 + len3 + 1);
4524 strcpy (result, s1);
4525 strcpy (result + len1, s2);
4526 strcpy (result + len1 + len2, s3);
4527 *(result + len1 + len2 + len3) = 0;
4533 save_string (s, len)
4537 register char *result = xmalloc (len + 1);
4539 bcopy (s, result, len);
4545 pfatal_with_name (name)
4550 if (errno < sys_nerr)
4551 s = concat ("%s: ", sys_errlist[errno], "");
4553 s = "cannot open %s";
4558 perror_with_name (name)
4563 if (errno < sys_nerr)
4564 s = concat ("%s: ", sys_errlist[errno], "");
4566 s = "cannot open %s";
4576 if (errno < sys_nerr)
4577 s = concat ("installation problem, cannot exec %s: ",
4578 sys_errlist[errno], "");
4580 s = "installation problem, cannot exec %s";
4584 /* More 'friendly' abort that prints the line and file.
4585 config.h can #define abort fancy_abort if you like that sort of thing. */
4590 fatal ("Internal gcc abort.");
4595 /* Output an error message and exit */
4598 fatal VPROTO((char *format, ...))
4605 VA_START (ap, format);
4608 format = va_arg (ap, char*);
4611 fprintf (stderr, "%s: ", programname);
4612 vfprintf (stderr, format, ap);
4614 fprintf (stderr, "\n");
4615 delete_temp_files ();
4620 error VPROTO((char *format, ...))
4627 VA_START (ap, format);
4630 format = va_arg (ap, char*);
4633 fprintf (stderr, "%s: ", programname);
4634 vfprintf (stderr, format, ap);
4637 fprintf (stderr, "\n");
4640 #else /* not HAVE_VPRINTF */
4643 fatal (msg, arg1, arg2)
4644 char *msg, *arg1, *arg2;
4646 error (msg, arg1, arg2);
4647 delete_temp_files ();
4652 error (msg, arg1, arg2)
4653 char *msg, *arg1, *arg2;
4655 fprintf (stderr, "%s: ", programname);
4656 fprintf (stderr, msg, arg1, arg2);
4657 fprintf (stderr, "\n");
4660 #endif /* not HAVE_VPRINTF */
4664 validate_all_switches ()
4666 struct compiler *comp;
4669 struct spec_list *spec;
4671 for (comp = compilers; comp->spec[0]; comp++)
4674 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4678 if (c == '%' && *p == '{')
4679 /* We have a switch spec. */
4680 validate_switches (p + 1);
4684 /* look through the linked list of extra specs read from the specs file */
4685 for (spec = specs; spec ; spec = spec->next)
4689 if (c == '%' && *p == '{')
4690 /* We have a switch spec. */
4691 validate_switches (p + 1);
4694 p = link_command_spec;
4696 if (c == '%' && *p == '{')
4697 /* We have a switch spec. */
4698 validate_switches (p + 1);
4700 /* Now notice switches mentioned in the machine-specific specs. */
4704 if (c == '%' && *p == '{')
4705 /* We have a switch spec. */
4706 validate_switches (p + 1);
4710 if (c == '%' && *p == '{')
4711 /* We have a switch spec. */
4712 validate_switches (p + 1);
4716 if (c == '%' && *p == '{')
4717 /* We have a switch spec. */
4718 validate_switches (p + 1);
4720 p = signed_char_spec;
4722 if (c == '%' && *p == '{')
4723 /* We have a switch spec. */
4724 validate_switches (p + 1);
4728 if (c == '%' && *p == '{')
4729 /* We have a switch spec. */
4730 validate_switches (p + 1);
4734 if (c == '%' && *p == '{')
4735 /* We have a switch spec. */
4736 validate_switches (p + 1);
4740 if (c == '%' && *p == '{')
4741 /* We have a switch spec. */
4742 validate_switches (p + 1);
4746 if (c == '%' && *p == '{')
4747 /* We have a switch spec. */
4748 validate_switches (p + 1);
4752 if (c == '%' && *p == '{')
4753 /* We have a switch spec. */
4754 validate_switches (p + 1);
4757 /* Look at the switch-name that comes after START
4758 and mark as valid all supplied switches that match it. */
4761 validate_switches (start)
4764 register char *p = start;
4779 while (*p != ':' && *p != '}') p++;
4783 else if (p[-1] == '*')
4785 /* Mark all matching switches as valid. */
4787 for (i = 0; i < n_switches; i++)
4788 if (!strncmp (switches[i].part1, filter, p - filter))
4789 switches[i].valid = 1;
4793 /* Mark an exact matching switch as valid. */
4794 for (i = 0; i < n_switches; i++)
4796 if (!strncmp (switches[i].part1, filter, p - filter)
4797 && switches[i].part1[p - filter] == 0)
4798 switches[i].valid = 1;
4803 /* Check whether a particular argument was used. */
4812 for (i = 0; i < n_switches; i++)
4813 if (! strncmp (switches[i].part1, p, len)
4814 && strlen (switches[i].part1) == len)
4819 /* Work out the subdirectory to use based on the
4820 options. The format of multilib_select is a list of elements.
4821 Each element is a subdirectory name followed by a list of options
4822 followed by a semicolon. gcc will consider each line in turn. If
4823 none of the options beginning with an exclamation point are
4824 present, and all of the other options are present, that
4825 subdirectory will be used. */
4830 char *p = multilib_select;
4832 char *this_path, *this_arg;
4837 /* Ignore newlines. */
4844 /* Get the initial path. */
4852 this_path_len = p - this_path;
4854 /* Check the arguments. */
4869 while (*p != ' ' && *p != ';')
4876 if (*this_arg == '!')
4877 failed = used_arg (this_arg + 1, p - (this_arg + 1));
4879 failed = ! used_arg (this_arg, p - this_arg);
4887 if (this_path_len != 1
4888 || this_path[0] != '.')
4890 multilib_dir = xmalloc (this_path_len + 1);
4891 strncpy (multilib_dir, this_path, this_path_len);
4892 multilib_dir[this_path_len] = '\0';
4901 /* Print out the multiple library subdirectory selection
4902 information. This prints out a series of lines. Each line looks
4903 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4904 required. Only the desired options are printed out, the negative
4905 matches. The options are print without a leading dash. There are
4906 no spaces to make it easy to use the information in the shell.
4907 Each subdirectory is printed only once. This assumes the ordering
4908 generated by the genmultilib script. */
4911 print_multilib_info ()
4913 char *p = multilib_select;
4914 char *last_path, *this_path;
4915 int last_path_len, skip, use_arg;
4919 /* Ignore newlines. */
4926 /* Get the initial path. */
4935 /* If this is a duplicate, skip it. */
4936 skip = (p - this_path == last_path_len
4937 && ! strncmp (last_path, this_path, last_path_len));
4939 last_path = this_path;
4940 last_path_len = p - this_path;
4946 for (p1 = last_path; p1 < p; p1++)
4965 use_arg = *p != '!';
4970 while (*p != ' ' && *p != ';')