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 %v1 Substitute the major version number of GCC.
319 (For version 2.5.n, this is 2.)
320 %v2 Substitute the minor version number of GCC.
321 (For version 2.5.n, this is 5.)
322 %a process ASM_SPEC as a spec.
323 This allows config.h to specify part of the spec for running as.
324 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
325 used here. This can be used to run a post-processor after the
326 assembler has done it's job.
327 %D Dump out a -L option for each directory in startfile_prefix.
328 If multilib_dir is set, extra entries are generated with it affixed.
329 %l process LINK_SPEC as a spec.
330 %L process LIB_SPEC as a spec.
331 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
332 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
333 %c process SIGNED_CHAR_SPEC as a spec.
334 %C process CPP_SPEC as a spec. A capital C is actually used here.
335 %1 process CC1_SPEC as a spec.
336 %2 process CC1PLUS_SPEC as a spec.
337 %| output "-" if the input for the current command is coming from a pipe.
338 %* substitute the variable part of a matched option. (See below.)
339 Note that each comma in the substituted string is replaced by
341 %{S} substitutes the -S switch, if that switch was given to CC.
342 If that switch was not specified, this substitutes nothing.
343 Here S is a metasyntactic variable.
344 %{S*} substitutes all the switches specified to CC whose names start
345 with -S. This is used for -o, -D, -I, etc; switches that take
346 arguments. CC considers `-o foo' as being one switch whose
347 name starts with `o'. %{o*} would substitute this text,
348 including the space; thus, two arguments would be generated.
349 %{S*:X} substitutes X if one or more switches whose names start with -S are
350 specified to CC. Note that the tail part of the -S option
351 (i.e. the part matched by the `*') will be substituted for each
352 occurrence of %* within X.
353 %{S:X} substitutes X, but only if the -S switch was given to CC.
354 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
355 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
356 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
357 %{.S:X} substitutes X, but only if processing a file with suffix S.
358 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
359 %(Spec) processes a specification defined in a specs file as *Spec:
360 %[Spec] as above, but put __ around -D arguments
362 The conditional text X in a %{S:X} or %{!S:X} construct may contain
363 other nested % constructs or spaces, or even newlines. They are
364 processed as usual, as described above.
366 The -O, -f, -m, and -W switches are handled specifically in these
367 constructs. If another value of -O or the negated form of a -f, -m, or
368 -W switch is found later in the command line, the earlier switch
369 value is ignored, except with {S*} where S is just one letter; this
370 passes all matching options.
372 The character | is used to indicate that a command should be piped to
373 the following command, but only if -pipe is specified.
375 Note that it is built into CC which switches take arguments and which
376 do not. You might think it would be useful to generalize this to
377 allow each compiler's spec to say which switches take arguments. But
378 this cannot be done in a consistent fashion. CC cannot even decide
379 which input files have been specified without knowing which switches
380 take arguments, and it must know which input files to compile in order
381 to tell which compilers to run.
383 CC also knows implicitly that arguments starting in `-l' are to be
384 treated as compiler output files, and passed to the linker in their
385 proper position among the other output files. */
387 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
389 /* config.h can define ASM_SPEC to provide extra args to the assembler
390 or extra switch-translations. */
395 /* config.h can define ASM_FINAL_SPEC to run a post processor after
396 the assembler has run. */
397 #ifndef ASM_FINAL_SPEC
398 #define ASM_FINAL_SPEC ""
401 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
402 or extra switch-translations. */
407 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
408 or extra switch-translations. */
413 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
414 or extra switch-translations. */
416 #define CC1PLUS_SPEC ""
419 /* config.h can define LINK_SPEC to provide extra args to the linker
420 or extra switch-translations. */
425 /* config.h can define LIB_SPEC to override the default libraries. */
427 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
430 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
431 #ifndef STARTFILE_SPEC
432 #define STARTFILE_SPEC \
433 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
436 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
437 Make the string nonempty to require spaces there. */
438 #ifndef SWITCHES_NEED_SPACES
439 #define SWITCHES_NEED_SPACES ""
442 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
444 #define ENDFILE_SPEC ""
447 /* This spec is used for telling cpp whether char is signed or not. */
448 #ifndef SIGNED_CHAR_SPEC
449 /* Use #if rather than ?:
450 because MIPS C compiler rejects like ?: in initializers. */
451 #if DEFAULT_SIGNED_CHAR
452 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
454 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
458 /* MULTILIB_SELECT comes from multilib.h. It gives a
459 string interpreted by set_multilib_dir to select a library
460 subdirectory based on the compiler options. */
461 #ifndef MULTILIB_SELECT
462 #define MULTILIB_SELECT ". ;"
465 static char *cpp_spec = CPP_SPEC;
466 static char *cpp_predefines = CPP_PREDEFINES;
467 static char *cc1_spec = CC1_SPEC;
468 static char *cc1plus_spec = CC1PLUS_SPEC;
469 static char *signed_char_spec = SIGNED_CHAR_SPEC;
470 static char *asm_spec = ASM_SPEC;
471 static char *asm_final_spec = ASM_FINAL_SPEC;
472 static char *link_spec = LINK_SPEC;
473 static char *lib_spec = LIB_SPEC;
474 static char *endfile_spec = ENDFILE_SPEC;
475 static char *startfile_spec = STARTFILE_SPEC;
476 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
477 static char *multilib_select = MULTILIB_SELECT;
479 /* This defines which switch letters take arguments. */
481 #ifndef SWITCH_TAKES_ARG
482 #define SWITCH_TAKES_ARG(CHAR) \
483 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
484 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
485 || (CHAR) == 'I' || (CHAR) == 'm' \
486 || (CHAR) == 'L' || (CHAR) == 'A')
489 /* This defines which multi-letter switches take arguments. */
491 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
492 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
493 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
494 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
495 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
496 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
497 || !strcmp (STR, "isystem"))
499 #ifndef WORD_SWITCH_TAKES_ARG
500 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
503 /* Record the mapping from file suffixes for compilation specs. */
507 char *suffix; /* Use this compiler for input files
508 whose names end in this suffix. */
510 char *spec[4]; /* To use this compiler, concatenate these
511 specs and pass to do_spec. */
514 /* Pointer to a vector of `struct compiler' that gives the spec for
515 compiling a file, based on its suffix.
516 A file that does not end in any of these suffixes will be passed
517 unchanged to the loader and nothing else will be done to it.
519 An entry containing two 0s is used to terminate the vector.
521 If multiple entries match a file, the last matching one is used. */
523 static struct compiler *compilers;
525 /* Number of entries in `compilers', not counting the null terminator. */
527 static int n_compilers;
529 /* The default list of file name suffixes and their compilation specs. */
531 static struct compiler default_compilers[] =
535 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
536 %{C:%{!E:%eGNU C does not support -C without using -E}}\
537 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
538 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
539 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
540 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
541 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
542 %{traditional-cpp:-traditional}\
543 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
544 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
545 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
546 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
547 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
548 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
550 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
551 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
552 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
553 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
554 %{!pipe:%g.s} %A\n }}}}"},
556 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
557 %{C:%{!E:%eGNU C does not support -C without using -E}}\
558 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
559 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
560 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
561 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
562 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
563 %{traditional-cpp:-traditional}\
564 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
566 %{!E:%e-E required when input is from standard input}"},
567 {".m", "@objective-c"},
569 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
570 %{C:%{!E:%eGNU C does not support -C without using -E}}\
571 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
572 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
573 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
574 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
575 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
576 %{traditional-cpp:-traditional}\
577 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
578 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
579 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
580 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
581 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
582 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
583 -lang-objc %{gen-decls} \
585 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
586 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
587 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
588 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
589 %{!pipe:%g.s} %A\n }}}}"},
592 "%{!E:%eCompilation of header file requested} \
593 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
594 %{C:%{!E:%eGNU C does not support -C without using -E}}\
595 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
596 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
597 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
598 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
599 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
600 %{traditional-cpp:-traditional}\
601 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
608 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
609 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
610 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
611 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
612 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
613 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
614 %{traditional-cpp:-traditional} %{trigraphs}\
615 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
616 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
617 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
618 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
619 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
620 %{traditional} %{v:-version} %{pg:-p} %{p}\
621 %{f*} %{+e*} %{aux-info*}\
622 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
623 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
624 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
625 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
626 %{!pipe:%g.s} %A\n }}}}"},
627 {".i", "@cpp-output"},
629 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
630 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
631 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
633 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
634 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
635 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
636 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
637 %{!pipe:%g.s} %A\n }}}}"},
638 {".ii", "@c++-cpp-output"},
640 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
641 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
642 %{traditional} %{v:-version} %{pg:-p} %{p}\
643 %{f*} %{+e*} %{aux-info*}\
644 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
645 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
646 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
647 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
648 %{!pipe:%g.s} %A\n }}}}"},
649 {".s", "@assembler"},
651 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
652 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
654 {".S", "@assembler-with-cpp"},
655 {"@assembler-with-cpp",
656 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
657 %{C:%{!E:%eGNU C does not support -C without using -E}}\
658 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
659 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
660 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
661 %{traditional-cpp:-traditional}\
662 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
663 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
664 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
665 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
666 %{!pipe:%g.s} %A\n }}}}"},
671 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
672 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
674 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
675 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
676 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
677 %{c:%W{o*}%{!o*:-o %w%b.o}}\
678 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
679 /* Mark end of table */
683 /* Number of elements in default_compilers, not counting the terminator. */
685 static int n_default_compilers
686 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
688 /* Here is the spec for running the linker, after compiling all files. */
690 /* -u* was put back because both BSD and SysV seem to support it. */
691 /* %{static:} simply prevents an error message if the target machine
692 doesn't handle -static. */
693 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
694 scripts which exist in user specified directories, or in standard
696 #ifdef LINK_LIBGCC_SPECIAL_1
697 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
698 static char *link_command_spec = "\
700 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
701 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
702 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
703 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
705 #ifdef LINK_LIBGCC_SPECIAL
706 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
707 static char *link_command_spec = "\
709 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
710 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
711 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
712 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
714 /* Use -L and have the linker do the search for -lgcc. */
715 static char *link_command_spec = "\
717 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
718 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
719 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
720 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
724 /* A vector of options to give to the linker.
725 These options are accumulated by -Xlinker and -Wl,
726 and substituted into the linker command with %X. */
727 static int n_linker_options;
728 static char **linker_options;
730 /* A vector of options to give to the assembler.
731 These options are accumulated by -Wa,
732 and substituted into the assembler command with %X. */
733 static int n_assembler_options;
734 static char **assembler_options;
736 /* Define how to map long options into short ones. */
738 /* This structure describes one mapping. */
741 /* The long option's name. */
743 /* The equivalent short option. */
745 /* Argument info. A string of flag chars; NULL equals no options.
746 a => argument required.
747 o => argument optional.
748 j => join argument to equivalent, making one word.
749 * => require other text after NAME as an argument. */
753 /* This is the table of mappings. Mappings are tried sequentially
754 for each option encountered; the first one that matches, wins. */
756 struct option_map option_map[] =
758 {"--all-warnings", "-Wall", 0},
759 {"--ansi", "-ansi", 0},
760 {"--assemble", "-S", 0},
761 {"--assert", "-A", "a"},
762 {"--comments", "-C", 0},
763 {"--compile", "-c", 0},
764 {"--debug", "-g", "oj"},
765 {"--define-macro", "-D", "a"},
766 {"--dependencies", "-M", 0},
767 {"--dump", "-d", "a"},
768 {"--dumpbase", "-dumpbase", "a"},
769 {"--entry", "-e", 0},
770 {"--extra-warnings", "-W", 0},
771 {"--for-assembler", "-Wa", "a"},
772 {"--for-linker", "-Xlinker", "a"},
773 {"--force-link", "-u", "a"},
774 {"--imacros", "-imacros", "a"},
775 {"--include", "-include", "a"},
776 {"--include-barrier", "-I-", 0},
777 {"--include-directory", "-I", "a"},
778 {"--include-directory-after", "-idirafter", "a"},
779 {"--include-prefix", "-iprefix", "a"},
780 {"--include-with-prefix", "-iwithprefix", "a"},
781 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
782 {"--include-with-prefix-after", "-iwithprefix", "a"},
783 {"--language", "-x", "a"},
784 {"--library-directory", "-L", "a"},
785 {"--machine", "-m", "aj"},
786 {"--machine-", "-m", "*j"},
787 {"--no-line-commands", "-P", 0},
788 {"--no-precompiled-includes", "-noprecomp", 0},
789 {"--no-standard-includes", "-nostdinc", 0},
790 {"--no-standard-libraries", "-nostdlib", 0},
791 {"--no-warnings", "-w", 0},
792 {"--optimize", "-O", "oj"},
793 {"--output", "-o", "a"},
794 {"--pedantic", "-pedantic", 0},
795 {"--pedantic-errors", "-pedantic-errors", 0},
796 {"--pipe", "-pipe", 0},
797 {"--prefix", "-B", "a"},
798 {"--preprocess", "-E", 0},
799 {"--print-file-name", "-print-file-name=", "aj"},
800 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
801 {"--print-missing-file-dependencies", "-MG", 0},
802 {"--print-multi-lib", "-print-multi-lib", 0},
803 {"--print-multi-directory", "-print-multi-directory", 0},
804 {"--print-prog-name", "-print-prog-name=", "aj"},
805 {"--profile", "-p", 0},
806 {"--profile-blocks", "-a", 0},
807 {"--quiet", "-q", 0},
808 {"--save-temps", "-save-temps", 0},
809 {"--shared", "-shared", 0},
810 {"--silent", "-q", 0},
811 {"--static", "-static", 0},
812 {"--symbolic", "-symbolic", 0},
813 {"--target", "-b", "a"},
814 {"--trace-includes", "-H", 0},
815 {"--traditional", "-traditional", 0},
816 {"--traditional-cpp", "-traditional-cpp", 0},
817 {"--trigraphs", "-trigraphs", 0},
818 {"--undefine-macro", "-U", "a"},
819 {"--use-version", "-V", "a"},
820 {"--user-dependencies", "-MM", 0},
821 {"--verbose", "-v", 0},
822 {"--version", "-dumpversion", 0},
823 {"--warn-", "-W", "*j"},
824 {"--write-dependencies", "-MD", 0},
825 {"--write-user-dependencies", "-MMD", 0},
829 /* Translate the options described by *ARGCP and *ARGVP.
830 Make a new vector and store it back in *ARGVP,
831 and store its length in *ARGVC. */
834 translate_options (argcp, argvp)
840 char **argv = *argvp;
841 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
845 newv[newindex++] = argv[i++];
849 /* Translate -- options. */
850 if (argv[i][0] == '-' && argv[i][1] == '-')
852 /* Find a mapping that applies to this option. */
853 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
855 int optlen = strlen (option_map[j].name);
856 int arglen = strlen (argv[i]);
857 int complen = arglen > optlen ? optlen : arglen;
858 char *arginfo = option_map[j].arg_info;
863 if (!strncmp (argv[i], option_map[j].name, complen))
870 k < sizeof (option_map) / sizeof (option_map[0]);
872 if (strlen (option_map[k].name) >= arglen
873 && !strncmp (argv[i], option_map[k].name, arglen))
875 error ("Ambiguous abbreviation %s", argv[i]);
879 if (k != sizeof (option_map) / sizeof (option_map[0]))
885 /* If the option has an argument, accept that. */
886 if (argv[i][optlen] == '=')
887 arg = argv[i] + optlen + 1;
889 /* If this mapping requires extra text at end of name,
890 accept that as "argument". */
891 else if (index (arginfo, '*') != 0)
892 arg = argv[i] + optlen;
894 /* Otherwise, extra text at end means mismatch.
895 Try other mappings. */
900 else if (index (arginfo, '*') != 0)
902 error ("Incomplete `%s' option", option_map[j].name);
906 /* Handle arguments. */
907 if (index (arginfo, 'a') != 0)
913 error ("Missing argument to `%s' option",
921 else if (index (arginfo, '*') != 0)
923 else if (index (arginfo, 'o') == 0)
926 error ("Extraneous argument to `%s' option",
931 /* Store the translation as one argv elt or as two. */
932 if (arg != 0 && index (arginfo, 'j') != 0)
933 newv[newindex++] = concat (option_map[j].equivalent,
937 newv[newindex++] = option_map[j].equivalent;
938 newv[newindex++] = arg;
941 newv[newindex++] = option_map[j].equivalent;
949 /* Handle old-fashioned options--just copy them through,
950 with their arguments. */
951 else if (argv[i][0] == '-')
953 char *p = argv[i] + 1;
957 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
958 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
959 else if (WORD_SWITCH_TAKES_ARG (p))
960 nskip += WORD_SWITCH_TAKES_ARG (p);
961 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
964 else if (! strcmp (p, "Xlinker"))
967 /* Watch out for an option at the end of the command line that
968 is missing arguments, and avoid skipping past the end of the
970 if (nskip + i > argc)
975 newv[newindex++] = argv[i++];
980 /* Ordinary operands, or +e options. */
981 newv[newindex++] = argv[i++];
990 /* Read compilation specs from a file named FILENAME,
991 replacing the default ones.
993 A suffix which starts with `*' is a definition for
994 one of the machine-specific sub-specs. The "suffix" should be
995 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
996 The corresponding spec is stored in asm_spec, etc.,
997 rather than in the `compilers' vector.
999 Anything invalid in the file is a fatal error. */
1002 read_specs (filename)
1006 struct stat statbuf;
1011 fprintf (stderr, "Reading specs from %s\n", filename);
1013 /* Open and stat the file. */
1014 desc = open (filename, 0, 0);
1016 pfatal_with_name (filename);
1017 if (stat (filename, &statbuf) < 0)
1018 pfatal_with_name (filename);
1020 /* Read contents of file into BUFFER. */
1021 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1022 read (desc, buffer, (unsigned) statbuf.st_size);
1023 buffer[statbuf.st_size] = 0;
1026 /* Scan BUFFER for specs, putting them in the vector. */
1032 char *in, *out, *p1, *p2;
1034 /* Advance P in BUFFER to the next nonblank nocomment line. */
1035 p = skip_whitespace (p);
1039 /* Find the colon that should end the suffix. */
1041 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1042 /* The colon shouldn't be missing. */
1044 fatal ("specs file malformed after %d characters", p1 - buffer);
1045 /* Skip back over trailing whitespace. */
1047 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1048 /* Copy the suffix to a string. */
1049 suffix = save_string (p, p2 - p);
1050 /* Find the next line. */
1051 p = skip_whitespace (p1 + 1);
1053 fatal ("specs file malformed after %d characters", p - buffer);
1055 /* Find next blank line. */
1056 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1057 /* Specs end at the blank line and do not include the newline. */
1058 spec = save_string (p, p1 - p);
1061 /* Delete backslash-newline sequences from the spec. */
1066 if (in[0] == '\\' && in[1] == '\n')
1068 else if (in[0] == '#')
1070 while (*in && *in != '\n') in++;
1077 if (suffix[0] == '*')
1079 if (! strcmp (suffix, "*link_command"))
1080 link_command_spec = spec;
1082 set_spec (suffix + 1, spec);
1086 /* Add this pair to the vector. */
1088 = ((struct compiler *)
1089 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1090 compilers[n_compilers].suffix = suffix;
1091 bzero ((char *) compilers[n_compilers].spec,
1092 sizeof compilers[n_compilers].spec);
1093 compilers[n_compilers].spec[0] = spec;
1095 bzero ((char *) &compilers[n_compilers],
1096 sizeof compilers[n_compilers]);
1100 link_command_spec = spec;
1103 if (link_command_spec == 0)
1104 fatal ("spec file has no spec for linking");
1113 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1114 be considered whitespace. */
1115 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1117 else if (*p == '\n' || *p == ' ' || *p == '\t')
1121 while (*p != '\n') p++;
1131 /* Structure to keep track of the specs that have been defined so far. These
1132 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1136 char *name; /* Name of the spec. */
1137 char *spec; /* The spec itself. */
1138 struct spec_list *next; /* Next spec in linked list. */
1141 /* List of specs that have been defined so far. */
1143 static struct spec_list *specs = (struct spec_list *) 0;
1145 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1146 removed; If the spec starts with a + then SPEC is added to the end of the
1150 set_spec (name, spec)
1154 struct spec_list *sl;
1157 /* See if the spec already exists */
1158 for (sl = specs; sl; sl = sl->next)
1159 if (strcmp (sl->name, name) == 0)
1164 /* Not found - make it */
1165 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1166 sl->name = save_string (name, strlen (name));
1167 sl->spec = save_string ("", 0);
1172 old_spec = sl->spec;
1173 if (name && spec[0] == '+' && isspace (spec[1]))
1174 sl->spec = concat (old_spec, spec + 1, "");
1176 sl->spec = save_string (spec, strlen (spec));
1178 if (! strcmp (name, "asm"))
1179 asm_spec = sl->spec;
1180 else if (! strcmp (name, "asm_final"))
1181 asm_final_spec = sl->spec;
1182 else if (! strcmp (name, "cc1"))
1183 cc1_spec = sl->spec;
1184 else if (! strcmp (name, "cc1plus"))
1185 cc1plus_spec = sl->spec;
1186 else if (! strcmp (name, "cpp"))
1187 cpp_spec = sl->spec;
1188 else if (! strcmp (name, "endfile"))
1189 endfile_spec = sl->spec;
1190 else if (! strcmp (name, "lib"))
1191 lib_spec = sl->spec;
1192 else if (! strcmp (name, "link"))
1193 link_spec = sl->spec;
1194 else if (! strcmp (name, "predefines"))
1195 cpp_predefines = sl->spec;
1196 else if (! strcmp (name, "signed_char"))
1197 signed_char_spec = sl->spec;
1198 else if (! strcmp (name, "startfile"))
1199 startfile_spec = sl->spec;
1200 else if (! strcmp (name, "switches_need_spaces"))
1201 switches_need_spaces = sl->spec;
1202 else if (! strcmp (name, "cross_compile"))
1203 cross_compile = atoi (sl->spec);
1204 else if (! strcmp (name, "multilib"))
1205 multilib_select = sl->spec;
1206 /* Free the old spec */
1211 /* Accumulate a command (program name and args), and run it. */
1213 /* Vector of pointers to arguments in the current line of specifications. */
1215 static char **argbuf;
1217 /* Number of elements allocated in argbuf. */
1219 static int argbuf_length;
1221 /* Number of elements in argbuf currently in use (containing args). */
1223 static int argbuf_index;
1225 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1226 temp file. Used only if MKTEMP_EACH_FILE. */
1228 static struct temp_name {
1229 char *suffix; /* suffix associated with the code. */
1230 int length; /* strlen (suffix). */
1231 int unique; /* Indicates whether %g or %u/%U was used. */
1232 char *filename; /* associated filename. */
1233 int filename_length; /* strlen (filename). */
1234 struct temp_name *next;
1237 /* Number of commands executed so far. */
1239 static int execution_count;
1241 /* Number of commands that exited with a signal. */
1243 static int signal_count;
1245 /* Name with which this program was invoked. */
1247 static char *programname;
1249 /* Structures to keep track of prefixes to try when looking for files. */
1253 char *prefix; /* String to prepend to the path. */
1254 struct prefix_list *next; /* Next in linked list. */
1255 int require_machine_suffix; /* Don't use without machine_suffix. */
1256 /* 2 means try both machine_suffix and just_machine_suffix. */
1257 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1262 struct prefix_list *plist; /* List of prefixes to try */
1263 int max_len; /* Max length of a prefix in PLIST */
1264 char *name; /* Name of this list (used in config stuff) */
1267 /* List of prefixes to try when looking for executables. */
1269 static struct path_prefix exec_prefix = { 0, 0, "exec" };
1271 /* List of prefixes to try when looking for startup (crt0) files. */
1273 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
1275 /* List of prefixes to try when looking for include files. */
1277 static struct path_prefix include_prefix = { 0, 0, "include" };
1279 /* Suffix to attach to directories searched for commands.
1280 This looks like `MACHINE/VERSION/'. */
1282 static char *machine_suffix = 0;
1284 /* Suffix to attach to directories searched for commands.
1285 This is just `MACHINE/'. */
1287 static char *just_machine_suffix = 0;
1289 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1291 static char *gcc_exec_prefix;
1293 /* Default prefixes to attach to command names. */
1295 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1296 #undef MD_EXEC_PREFIX
1297 #undef MD_STARTFILE_PREFIX
1298 #undef MD_STARTFILE_PREFIX_1
1301 #ifndef STANDARD_EXEC_PREFIX
1302 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1303 #endif /* !defined STANDARD_EXEC_PREFIX */
1305 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1306 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1307 #ifdef MD_EXEC_PREFIX
1308 static char *md_exec_prefix = MD_EXEC_PREFIX;
1311 #ifndef STANDARD_STARTFILE_PREFIX
1312 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1313 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1315 #ifdef MD_STARTFILE_PREFIX
1316 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1318 #ifdef MD_STARTFILE_PREFIX_1
1319 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1321 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1322 static char *standard_startfile_prefix_1 = "/lib/";
1323 static char *standard_startfile_prefix_2 = "/usr/lib/";
1325 #ifndef TOOLDIR_BASE_PREFIX
1326 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1328 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1329 static char *tooldir_prefix;
1331 /* Subdirectory to use for locating libraries. Set by
1332 set_multilib_dir based on the compilation options. */
1334 static char *multilib_dir;
1336 /* Clear out the vector of arguments (after a command is executed). */
1344 /* Add one argument to the vector at the end.
1345 This is done when a space is seen or at the end of the line.
1346 If DELETE_ALWAYS is nonzero, the arg is a filename
1347 and the file should be deleted eventually.
1348 If DELETE_FAILURE is nonzero, the arg is a filename
1349 and the file should be deleted if this compilation fails. */
1352 store_arg (arg, delete_always, delete_failure)
1354 int delete_always, delete_failure;
1356 if (argbuf_index + 1 == argbuf_length)
1358 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1361 argbuf[argbuf_index++] = arg;
1362 argbuf[argbuf_index] = 0;
1364 if (delete_always || delete_failure)
1365 record_temp_file (arg, delete_always, delete_failure);
1368 /* Record the names of temporary files we tell compilers to write,
1369 and delete them at the end of the run. */
1371 /* This is the common prefix we use to make temp file names.
1372 It is chosen once for each run of this program.
1373 It is substituted into a spec by %g.
1374 Thus, all temp file names contain this prefix.
1375 In practice, all temp file names start with this prefix.
1377 This prefix comes from the envvar TMPDIR if it is defined;
1378 otherwise, from the P_tmpdir macro if that is defined;
1379 otherwise, in /usr/tmp or /tmp. */
1381 static char *temp_filename;
1383 /* Length of the prefix. */
1385 static int temp_filename_length;
1387 /* Define the list of temporary files to delete. */
1392 struct temp_file *next;
1395 /* Queue of files to delete on success or failure of compilation. */
1396 static struct temp_file *always_delete_queue;
1397 /* Queue of files to delete on failure of compilation. */
1398 static struct temp_file *failure_delete_queue;
1400 /* Record FILENAME as a file to be deleted automatically.
1401 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1402 otherwise delete it in any case.
1403 FAIL_DELETE nonzero means delete it if a compilation step fails;
1404 otherwise delete it in any case. */
1407 record_temp_file (filename, always_delete, fail_delete)
1412 register char *name;
1413 name = xmalloc (strlen (filename) + 1);
1414 strcpy (name, filename);
1418 register struct temp_file *temp;
1419 for (temp = always_delete_queue; temp; temp = temp->next)
1420 if (! strcmp (name, temp->name))
1422 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1423 temp->next = always_delete_queue;
1425 always_delete_queue = temp;
1431 register struct temp_file *temp;
1432 for (temp = failure_delete_queue; temp; temp = temp->next)
1433 if (! strcmp (name, temp->name))
1435 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1436 temp->next = failure_delete_queue;
1438 failure_delete_queue = temp;
1443 /* Delete all the temporary files whose names we previously recorded. */
1446 delete_if_ordinary (name)
1453 printf ("Delete %s? (y or n) ", name);
1457 while ((c = getchar ()) != '\n' && c != EOF) ;
1458 if (i == 'y' || i == 'Y')
1460 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1461 if (unlink (name) < 0)
1463 perror_with_name (name);
1467 delete_temp_files ()
1469 register struct temp_file *temp;
1471 for (temp = always_delete_queue; temp; temp = temp->next)
1472 delete_if_ordinary (temp->name);
1473 always_delete_queue = 0;
1476 /* Delete all the files to be deleted on error. */
1479 delete_failure_queue ()
1481 register struct temp_file *temp;
1483 for (temp = failure_delete_queue; temp; temp = temp->next)
1484 delete_if_ordinary (temp->name);
1488 clear_failure_queue ()
1490 failure_delete_queue = 0;
1493 /* Compute a string to use as the base of all temporary file names.
1494 It is substituted for %g. */
1497 choose_temp_base_try (try, base)
1504 else if (try == (char *)0)
1506 else if (access (try, R_OK | W_OK) != 0)
1519 base = choose_temp_base_try (getenv ("TMPDIR"), base);
1520 base = choose_temp_base_try (getenv ("TMP"), base);
1521 base = choose_temp_base_try (getenv ("TEMP"), base);
1524 base = choose_temp_base_try (P_tmpdir, base);
1527 base = choose_temp_base_try ("/usr/tmp", base);
1528 base = choose_temp_base_try ("/tmp", base);
1530 /* If all else fails, use the current directory! */
1531 if (base == (char *)0)
1534 len = strlen (base);
1535 temp_filename = xmalloc (len + sizeof("/ccXXXXXX") + 1);
1536 strcpy (temp_filename, base);
1537 if (len > 0 && temp_filename[len-1] != '/')
1538 temp_filename[len++] = '/';
1539 strcpy (temp_filename + len, "ccXXXXXX");
1541 mktemp (temp_filename);
1542 temp_filename_length = strlen (temp_filename);
1543 if (temp_filename_length == 0)
1548 /* Routine to add variables to the environment. We do this to pass
1549 the pathname of the gcc driver, and the directories search to the
1550 collect2 program, which is being run as ld. This way, we can be
1551 sure of executing the right compiler when collect2 wants to build
1552 constructors and destructors. Since the environment variables we
1553 use come from an obstack, we don't have to worry about allocating
1562 #ifndef VMS /* nor about VMS */
1564 extern char **environ;
1565 char **old_environ = environ;
1569 int str_len = strlen (str);
1573 while ((ch = *p++) != '\0' && ch != '=')
1579 /* Search for replacing an existing environment variable, and
1580 count the number of total environment variables. */
1581 for (envp = old_environ; *envp; envp++)
1584 if (!strncmp (str, *envp, name_len))
1591 /* Add a new environment variable */
1592 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1594 bcopy ((char *) old_environ, (char *) (environ + 1),
1595 sizeof (char *) * (num_envs+1));
1600 #endif /* HAVE_PUTENV */
1603 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1606 putenv_from_prefixes (paths, env_var)
1607 struct path_prefix *paths;
1610 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1612 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1613 int first_time = TRUE;
1614 struct prefix_list *pprefix;
1616 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1618 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1620 int len = strlen (pprefix->prefix);
1623 && is_directory (pprefix->prefix, machine_suffix, 0))
1626 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1629 obstack_grow (&collect_obstack, pprefix->prefix, len);
1630 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1633 if (just_machine_suffix
1634 && pprefix->require_machine_suffix == 2
1635 && is_directory (pprefix->prefix, just_machine_suffix, 0))
1638 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1641 obstack_grow (&collect_obstack, pprefix->prefix, len);
1642 obstack_grow (&collect_obstack, just_machine_suffix,
1646 if (!pprefix->require_machine_suffix)
1649 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1652 obstack_grow (&collect_obstack, pprefix->prefix, len);
1655 obstack_1grow (&collect_obstack, '\0');
1656 putenv (obstack_finish (&collect_obstack));
1660 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1661 access to check permissions.
1662 Return 0 if not found, otherwise return its name, allocated with malloc. */
1665 find_a_file (pprefix, name, mode)
1666 struct path_prefix *pprefix;
1671 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1672 struct prefix_list *pl;
1673 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1676 len += strlen (machine_suffix);
1678 temp = xmalloc (len);
1680 /* Determine the filename to execute (special case for absolute paths). */
1684 if (access (name, mode))
1686 strcpy (temp, name);
1691 for (pl = pprefix->plist; pl; pl = pl->next)
1695 /* Some systems have a suffix for executable files.
1696 So try appending that first. */
1697 if (file_suffix[0] != 0)
1699 strcpy (temp, pl->prefix);
1700 strcat (temp, machine_suffix);
1701 strcat (temp, name);
1702 strcat (temp, file_suffix);
1703 if (access (temp, mode) == 0)
1705 if (pl->used_flag_ptr != 0)
1706 *pl->used_flag_ptr = 1;
1711 /* Now try just the name. */
1712 strcpy (temp, pl->prefix);
1713 strcat (temp, machine_suffix);
1714 strcat (temp, name);
1715 if (access (temp, mode) == 0)
1717 if (pl->used_flag_ptr != 0)
1718 *pl->used_flag_ptr = 1;
1723 /* Certain prefixes are tried with just the machine type,
1724 not the version. This is used for finding as, ld, etc. */
1725 if (just_machine_suffix && pl->require_machine_suffix == 2)
1727 /* Some systems have a suffix for executable files.
1728 So try appending that first. */
1729 if (file_suffix[0] != 0)
1731 strcpy (temp, pl->prefix);
1732 strcat (temp, just_machine_suffix);
1733 strcat (temp, name);
1734 strcat (temp, file_suffix);
1735 if (access (temp, mode) == 0)
1737 if (pl->used_flag_ptr != 0)
1738 *pl->used_flag_ptr = 1;
1743 strcpy (temp, pl->prefix);
1744 strcat (temp, just_machine_suffix);
1745 strcat (temp, name);
1746 if (access (temp, mode) == 0)
1748 if (pl->used_flag_ptr != 0)
1749 *pl->used_flag_ptr = 1;
1754 /* Certain prefixes can't be used without the machine suffix
1755 when the machine or version is explicitly specified. */
1756 if (!pl->require_machine_suffix)
1758 /* Some systems have a suffix for executable files.
1759 So try appending that first. */
1760 if (file_suffix[0] != 0)
1762 strcpy (temp, pl->prefix);
1763 strcat (temp, name);
1764 strcat (temp, file_suffix);
1765 if (access (temp, mode) == 0)
1767 if (pl->used_flag_ptr != 0)
1768 *pl->used_flag_ptr = 1;
1773 strcpy (temp, pl->prefix);
1774 strcat (temp, name);
1775 if (access (temp, mode) == 0)
1777 if (pl->used_flag_ptr != 0)
1778 *pl->used_flag_ptr = 1;
1788 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1789 at the start of the list, otherwise it goes at the end.
1791 If WARN is nonzero, we will warn if no file is found
1792 through this prefix. WARN should point to an int
1793 which will be set to 1 if this entry is used.
1795 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1796 the complete value of machine_suffix.
1797 2 means try both machine_suffix and just_machine_suffix. */
1800 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1801 struct path_prefix *pprefix;
1804 int require_machine_suffix;
1807 struct prefix_list *pl, **prev;
1810 if (!first && pprefix->plist)
1812 for (pl = pprefix->plist; pl->next; pl = pl->next)
1817 prev = &pprefix->plist;
1819 /* Keep track of the longest prefix */
1821 len = strlen (prefix);
1822 if (len > pprefix->max_len)
1823 pprefix->max_len = len;
1825 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1826 pl->prefix = save_string (prefix, len);
1827 pl->require_machine_suffix = require_machine_suffix;
1828 pl->used_flag_ptr = warn;
1835 pl->next = (struct prefix_list *) 0;
1839 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1842 unused_prefix_warnings (pprefix)
1843 struct path_prefix *pprefix;
1845 struct prefix_list *pl = pprefix->plist;
1849 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1851 error ("file path prefix `%s' never used",
1853 /* Prevent duplicate warnings. */
1854 *pl->used_flag_ptr = 1;
1860 /* Get rid of all prefixes built up so far in *PLISTP. */
1863 free_path_prefix (pprefix)
1864 struct path_prefix *pprefix;
1866 struct prefix_list *pl = pprefix->plist;
1867 struct prefix_list *temp;
1873 free (temp->prefix);
1874 free ((char *) temp);
1876 pprefix->plist = (struct prefix_list *) 0;
1879 /* stdin file number. */
1880 #define STDIN_FILE_NO 0
1882 /* stdout file number. */
1883 #define STDOUT_FILE_NO 1
1885 /* value of `pipe': port index for reading. */
1888 /* value of `pipe': port index for writing. */
1889 #define WRITE_PORT 1
1891 /* Pipe waiting from last process, to be used as input for the next one.
1892 Value is STDIN_FILE_NO if no pipe is waiting
1893 (i.e. the next command is the first of a group). */
1895 static int last_pipe_input;
1897 /* Fork one piped subcommand. FUNC is the system call to use
1898 (either execv or execvp). ARGV is the arg vector to use.
1899 NOT_LAST is nonzero if this is not the last subcommand
1900 (i.e. its output should be piped to the next one.) */
1905 #include <process.h>
1907 pexecute (search_flag, program, argv, not_last)
1914 int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
1918 int i, el = search_flag ? 0 : 4;
1920 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6 + el);
1921 rf = scmd + strlen(program) + 2 + el;
1922 sprintf (scmd, "%s%s @%s.gp", program,
1923 (search_flag ? "" : ".exe"), temp_filename);
1924 argfile = fopen (rf, "w");
1926 pfatal_with_name (rf);
1928 for (i=1; argv[i]; i++)
1931 for (cp = argv[i]; *cp; cp++)
1933 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1934 fputc ('\\', argfile);
1935 fputc (*cp, argfile);
1937 fputc ('\n', argfile);
1948 perror_exec (program);
1949 return MIN_FATAL_STATUS << 8;
1954 #else /* not __MSDOS__ */
1957 pexecute (search_flag, program, argv, not_last)
1963 int (*func)() = (search_flag ? execv : execvp);
1966 int input_desc = last_pipe_input;
1967 int output_desc = STDOUT_FILE_NO;
1968 int retries, sleep_interval;
1970 /* If this isn't the last process, make a pipe for its output,
1971 and record it as waiting to be the input to the next process. */
1975 if (pipe (pdes) < 0)
1976 pfatal_with_name ("pipe");
1977 output_desc = pdes[WRITE_PORT];
1978 last_pipe_input = pdes[READ_PORT];
1981 last_pipe_input = STDIN_FILE_NO;
1983 /* Fork a subprocess; wait and retry if it fails. */
1985 for (retries = 0; retries < 4; retries++)
1990 sleep (sleep_interval);
1991 sleep_interval *= 2;
1998 pfatal_with_name ("fork");
2000 pfatal_with_name ("vfork");
2006 /* Move the input and output pipes into place, if nec. */
2007 if (input_desc != STDIN_FILE_NO)
2009 close (STDIN_FILE_NO);
2013 if (output_desc != STDOUT_FILE_NO)
2015 close (STDOUT_FILE_NO);
2017 close (output_desc);
2020 /* Close the parent's descs that aren't wanted here. */
2021 if (last_pipe_input != STDIN_FILE_NO)
2022 close (last_pipe_input);
2024 /* Exec the program. */
2025 (*func) (program, argv);
2026 perror_exec (program);
2032 /* In the parent, after forking.
2033 Close the descriptors that we made for this child. */
2034 if (input_desc != STDIN_FILE_NO)
2036 if (output_desc != STDOUT_FILE_NO)
2037 close (output_desc);
2039 /* Return child's process number. */
2044 #endif /* not __MSDOS__ */
2048 pexecute (search_flag, program, argv, not_last)
2054 return (search_flag ? spawnv : spawnvp) (1, program, argv);
2056 #endif /* not OS2 */
2058 /* Execute the command specified by the arguments on the current line of spec.
2059 When using pipes, this includes several piped-together commands
2060 with `|' between them.
2062 Return 0 if successful, -1 if failed. */
2068 int n_commands; /* # of command. */
2072 char *prog; /* program name. */
2073 char **argv; /* vector of args. */
2074 int pid; /* pid of process for this command. */
2077 struct command *commands; /* each command buffer with above info. */
2079 /* Count # of piped commands. */
2080 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2081 if (strcmp (argbuf[i], "|") == 0)
2084 /* Get storage for each command. */
2086 = (struct command *) alloca (n_commands * sizeof (struct command));
2088 /* Split argbuf into its separate piped processes,
2089 and record info about each one.
2090 Also search for the programs that are to be run. */
2092 commands[0].prog = argbuf[0]; /* first command. */
2093 commands[0].argv = &argbuf[0];
2094 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
2096 commands[0].argv[0] = string;
2098 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2099 if (strcmp (argbuf[i], "|") == 0)
2100 { /* each command. */
2102 fatal ("-pipe not supported under MS-DOS");
2104 argbuf[i] = 0; /* termination of command args. */
2105 commands[n_commands].prog = argbuf[i + 1];
2106 commands[n_commands].argv = &argbuf[i + 1];
2107 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
2109 commands[n_commands].argv[0] = string;
2113 argbuf[argbuf_index] = 0;
2115 /* If -v, print what we are about to do, and maybe query. */
2119 /* Print each piped command as a separate line. */
2120 for (i = 0; i < n_commands ; i++)
2124 for (j = commands[i].argv; *j; j++)
2125 fprintf (stderr, " %s", *j);
2127 /* Print a pipe symbol after all but the last command. */
2128 if (i + 1 != n_commands)
2129 fprintf (stderr, " |");
2130 fprintf (stderr, "\n");
2134 fprintf (stderr, "\nGo ahead? (y or n) ");
2138 while (getchar () != '\n') ;
2139 if (i != 'y' && i != 'Y')
2144 /* Run each piped subprocess. */
2146 last_pipe_input = STDIN_FILE_NO;
2147 for (i = 0; i < n_commands; i++)
2149 char *string = commands[i].argv[0];
2151 commands[i].pid = pexecute (string != commands[i].prog,
2152 string, commands[i].argv,
2153 i + 1 < n_commands);
2155 if (string != commands[i].prog)
2161 /* Wait for all the subprocesses to finish.
2162 We don't care what order they finish in;
2163 we know that N_COMMANDS waits will get them all. */
2168 for (i = 0; i < n_commands; i++)
2172 char *prog = "unknown";
2175 status = pid = commands[i].pid;
2177 pid = wait (&status);
2185 for (j = 0; j < n_commands; j++)
2186 if (commands[j].pid == pid)
2187 prog = commands[j].prog;
2189 if ((status & 0x7F) != 0)
2191 fatal ("Internal compiler error: program %s got fatal signal %d",
2192 prog, (status & 0x7F));
2195 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
2203 /* Find all the switches given to us
2204 and make a vector describing them.
2205 The elements of the vector are strings, one per switch given.
2206 If a switch uses following arguments, then the `part1' field
2207 is the switch itself and the `args' field
2208 is a null-terminated vector containing the following arguments.
2209 The `live_cond' field is 1 if the switch is true in a conditional spec,
2210 -1 if false (overridden by a later switch), and is initialized to zero.
2211 The `valid' field is nonzero if any spec has looked at this switch;
2212 if it remains zero at the end of the run, it must be meaningless. */
2222 static struct switchstr *switches;
2224 static int n_switches;
2232 /* Also a vector of input files specified. */
2234 static struct infile *infiles;
2236 static int n_infiles;
2238 /* And a vector of corresponding output files is made up later. */
2240 static char **outfiles;
2242 /* Create the vector `switches' and its contents.
2243 Store its length in `n_switches'. */
2246 process_command (argc, argv)
2252 char *spec_lang = 0;
2253 int last_language_n_infiles;
2255 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2260 /* Figure compiler version from version string. */
2262 compiler_version = save_string (version_string, strlen (version_string));
2263 for (temp = compiler_version; *temp; ++temp)
2272 /* Set up the default search paths. */
2274 if (gcc_exec_prefix)
2276 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2277 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
2280 /* COMPILER_PATH and LIBRARY_PATH have values
2281 that are lists of directory names with colons. */
2283 temp = getenv ("COMPILER_PATH");
2286 char *startp, *endp;
2287 char *nstore = (char *) alloca (strlen (temp) + 3);
2289 startp = endp = temp;
2292 if (*endp == PATH_SEPARATOR || *endp == 0)
2294 strncpy (nstore, startp, endp-startp);
2297 strcpy (nstore, "./");
2299 else if (endp[-1] != '/')
2301 nstore[endp-startp] = '/';
2302 nstore[endp-startp+1] = 0;
2305 nstore[endp-startp] = 0;
2306 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
2309 endp = startp = endp + 1;
2316 temp = getenv ("LIBRARY_PATH");
2319 char *startp, *endp;
2320 char *nstore = (char *) alloca (strlen (temp) + 3);
2322 startp = endp = temp;
2325 if (*endp == PATH_SEPARATOR || *endp == 0)
2327 strncpy (nstore, startp, endp-startp);
2330 strcpy (nstore, "./");
2332 else if (endp[-1] != '/')
2334 nstore[endp-startp] = '/';
2335 nstore[endp-startp+1] = 0;
2338 nstore[endp-startp] = 0;
2339 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2342 endp = startp = endp + 1;
2349 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2350 temp = getenv ("LPATH");
2353 char *startp, *endp;
2354 char *nstore = (char *) alloca (strlen (temp) + 3);
2356 startp = endp = temp;
2359 if (*endp == PATH_SEPARATOR || *endp == 0)
2361 strncpy (nstore, startp, endp-startp);
2364 strcpy (nstore, "./");
2366 else if (endp[-1] != '/')
2368 nstore[endp-startp] = '/';
2369 nstore[endp-startp+1] = 0;
2372 nstore[endp-startp] = 0;
2373 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
2376 endp = startp = endp + 1;
2383 /* Convert new-style -- options to old-style. */
2384 translate_options (&argc, &argv);
2386 /* Scan argv twice. Here, the first time, just count how many switches
2387 there will be in their vector, and how many input files in theirs.
2388 Here we also parse the switches that cc itself uses (e.g. -v). */
2390 for (i = 1; i < argc; i++)
2392 if (! strcmp (argv[i], "-dumpspecs"))
2394 printf ("*asm:\n%s\n\n", asm_spec);
2395 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2396 printf ("*cpp:\n%s\n\n", cpp_spec);
2397 printf ("*cc1:\n%s\n\n", cc1_spec);
2398 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2399 printf ("*endfile:\n%s\n\n", endfile_spec);
2400 printf ("*link:\n%s\n\n", link_spec);
2401 printf ("*lib:\n%s\n\n", lib_spec);
2402 printf ("*startfile:\n%s\n\n", startfile_spec);
2403 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2404 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2405 printf ("*predefines:\n%s\n\n", cpp_predefines);
2406 printf ("*cross_compile:\n%d\n\n", cross_compile);
2407 printf ("*multilib:\n%s\n\n", multilib_select);
2411 else if (! strcmp (argv[i], "-dumpversion"))
2413 printf ("%s\n", version_string);
2416 else if (! strcmp (argv[i], "-dumpmachine"))
2418 printf ("%s\n", spec_machine);
2421 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2422 print_file_name = "libgcc.a";
2423 else if (! strncmp (argv[i], "-print-file-name=", 17))
2424 print_file_name = argv[i] + 17;
2425 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2426 print_prog_name = argv[i] + 17;
2427 else if (! strcmp (argv[i], "-print-multi-lib"))
2428 print_multi_lib = 1;
2429 else if (! strcmp (argv[i], "-print-multi-directory"))
2430 print_multi_directory = 1;
2431 else if (! strcmp (argv[i], "-Xlinker"))
2433 /* Pass the argument of this option to the linker when we link. */
2436 fatal ("argument to `-Xlinker' is missing");
2439 if (!linker_options)
2441 = (char **) xmalloc (n_linker_options * sizeof (char **));
2444 = (char **) xrealloc (linker_options,
2445 n_linker_options * sizeof (char **));
2447 linker_options[n_linker_options - 1] = argv[++i];
2449 else if (! strncmp (argv[i], "-Wl,", 4))
2452 /* Pass the rest of this option to the linker when we link. */
2455 if (!linker_options)
2457 = (char **) xmalloc (n_linker_options * sizeof (char **));
2460 = (char **) xrealloc (linker_options,
2461 n_linker_options * sizeof (char **));
2463 /* Split the argument at commas. */
2465 for (j = 4; argv[i][j]; j++)
2466 if (argv[i][j] == ',')
2468 linker_options[n_linker_options - 1]
2469 = save_string (argv[i] + prev, j - prev);
2472 = (char **) xrealloc (linker_options,
2473 n_linker_options * sizeof (char **));
2476 /* Record the part after the last comma. */
2477 linker_options[n_linker_options - 1] = argv[i] + prev;
2479 else if (! strncmp (argv[i], "-Wa,", 4))
2482 /* Pass the rest of this option to the assembler. */
2484 n_assembler_options++;
2485 if (!assembler_options)
2487 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2490 = (char **) xrealloc (assembler_options,
2491 n_assembler_options * sizeof (char **));
2493 /* Split the argument at commas. */
2495 for (j = 4; argv[i][j]; j++)
2496 if (argv[i][j] == ',')
2498 assembler_options[n_assembler_options - 1]
2499 = save_string (argv[i] + prev, j - prev);
2500 n_assembler_options++;
2502 = (char **) xrealloc (assembler_options,
2503 n_assembler_options * sizeof (char **));
2506 /* Record the part after the last comma. */
2507 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2509 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2510 /* The +e options to the C++ front-end. */
2512 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2514 register char *p = &argv[i][1];
2515 register int c = *p;
2520 if (p[1] == 0 && i + 1 == argc)
2521 fatal ("argument to `-b' is missing");
2523 spec_machine = argv[++i];
2525 spec_machine = p + 1;
2530 int *temp = (int *) xmalloc (sizeof (int));
2532 if (p[1] == 0 && i + 1 == argc)
2533 fatal ("argument to `-B' is missing");
2538 add_prefix (&exec_prefix, value, 1, 0, temp);
2539 add_prefix (&startfile_prefix, value, 1, 0, temp);
2540 add_prefix (&include_prefix, concat (value, "include", ""),
2543 /* As a kludge, if the arg is "[foo/]stageN/", just add
2544 "[foo/]include" to the include prefix. */
2546 int len = strlen (value);
2547 if ((len == 7 || (len > 7 && value[len - 8] == '/'))
2548 && strncmp (value + len - 7, "stage", 5) == 0
2549 && isdigit (value[len - 2])
2550 && value[len - 1] == '/')
2553 add_prefix (&include_prefix, "include", 1, 0, 0);
2556 char *string = xmalloc (len + 1);
2557 strncpy (string, value, len-7);
2558 strcat (string, "include");
2559 add_prefix (&include_prefix, string, 1, 0, 0);
2566 case 'v': /* Print our subcommands and print versions. */
2568 /* If they do anything other than exactly `-v', don't set
2569 verbose_flag; rather, continue on to give the error. */
2576 if (p[1] == 0 && i + 1 == argc)
2577 fatal ("argument to `-V' is missing");
2579 spec_version = argv[++i];
2581 spec_version = p + 1;
2582 compiler_version = spec_version;
2586 if (!strcmp (p, "save-temps"))
2588 save_temps_flag = 1;
2595 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2596 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2597 else if (WORD_SWITCH_TAKES_ARG (p))
2598 i += WORD_SWITCH_TAKES_ARG (p);
2605 /* Set up the search paths before we go looking for config files. */
2607 /* These come before the md prefixes so that we will find gcc's subcommands
2608 (such as cpp) rather than those of the host system. */
2609 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2610 as well as trying the machine and the version. */
2611 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2612 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2614 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2615 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2617 tooldir_prefix = concat (tooldir_base_prefix, spec_machine, "/");
2619 /* If tooldir is relative, base it on exec_prefix. A relative
2620 tooldir lets us move the installed tree as a unit.
2622 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2623 directories, so that we can search both the user specified directory
2624 and the standard place. */
2626 if (*tooldir_prefix != '/')
2628 if (gcc_exec_prefix)
2630 char *gcc_exec_tooldir_prefix
2631 = concat (concat (gcc_exec_prefix, spec_machine, "/"),
2632 concat (spec_version, "/", tooldir_prefix),
2635 add_prefix (&exec_prefix, concat (gcc_exec_tooldir_prefix, "bin", "/"),
2637 add_prefix (&startfile_prefix, concat (gcc_exec_tooldir_prefix, "lib", "/"),
2641 tooldir_prefix = concat (concat (standard_exec_prefix, spec_machine, "/"),
2642 concat (spec_version, "/", tooldir_prefix),
2646 add_prefix (&exec_prefix, concat (tooldir_prefix, "bin", "/"),
2648 add_prefix (&startfile_prefix, concat (tooldir_prefix, "lib", "/"),
2651 /* More prefixes are enabled in main, after we read the specs file
2652 and determine whether this is cross-compilation or not. */
2655 /* Then create the space for the vectors and scan again. */
2657 switches = ((struct switchstr *)
2658 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2659 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2662 last_language_n_infiles = -1;
2664 /* This, time, copy the text of each switch and store a pointer
2665 to the copy in the vector of switches.
2666 Store all the infiles in their vector. */
2668 for (i = 1; i < argc; i++)
2670 /* Just skip the switches that were handled by the preceding loop. */
2671 if (!strcmp (argv[i], "-Xlinker"))
2673 else if (! strncmp (argv[i], "-Wl,", 4))
2675 else if (! strncmp (argv[i], "-Wa,", 4))
2677 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2679 else if (! strncmp (argv[i], "-print-file-name=", 17))
2681 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2683 else if (! strcmp (argv[i], "-print-multi-lib"))
2685 else if (! strcmp (argv[i], "-print-multi-directory"))
2687 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2689 /* Compensate for the +e options to the C++ front-end;
2690 they're there simply for cfront call-compatibility. We do
2691 some magic in default_compilers to pass them down properly.
2692 Note we deliberately start at the `+' here, to avoid passing
2693 -e0 or -e1 down into the linker. */
2694 switches[n_switches].part1 = &argv[i][0];
2695 switches[n_switches].args = 0;
2696 switches[n_switches].live_cond = 0;
2697 switches[n_switches].valid = 0;
2700 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2702 register char *p = &argv[i][1];
2703 register int c = *p;
2705 if (c == 'B' || c == 'b' || c == 'V')
2707 /* Skip a separate arg, if any. */
2714 if (p[1] == 0 && i + 1 == argc)
2715 fatal ("argument to `-x' is missing");
2717 spec_lang = argv[++i];
2720 if (! strcmp (spec_lang, "none"))
2721 /* Suppress the warning if -xnone comes after the last input file,
2722 because alternate command interfaces like g++ might find it
2723 useful to place -xnone after each input file. */
2726 last_language_n_infiles = n_infiles;
2729 switches[n_switches].part1 = p;
2730 /* Deal with option arguments in separate argv elements. */
2731 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2732 || WORD_SWITCH_TAKES_ARG (p))
2735 int n_args = WORD_SWITCH_TAKES_ARG (p);
2739 /* Count only the option arguments in separate argv elements. */
2740 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2742 if (i + n_args >= argc)
2743 fatal ("argument to `-%s' is missing", p);
2744 switches[n_switches].args
2745 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2747 switches[n_switches].args[j++] = argv[++i];
2748 /* Null-terminate the vector. */
2749 switches[n_switches].args[j] = 0;
2751 else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L'))
2753 /* On some systems, ld cannot handle -o or -L without space.
2754 So split the -o or -L from its argument. */
2755 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2756 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2757 switches[n_switches].args[0] = xmalloc (strlen (p));
2758 strcpy (switches[n_switches].args[0], &p[1]);
2759 switches[n_switches].args[1] = 0;
2762 switches[n_switches].args = 0;
2764 switches[n_switches].live_cond = 0;
2765 switches[n_switches].valid = 0;
2766 /* This is always valid, since gcc.c itself understands it. */
2767 if (!strcmp (p, "save-temps"))
2768 switches[n_switches].valid = 1;
2773 if ((argv[i][0] != '-' || argv[i][1] != 'l')
2774 && strcmp (argv[i], "-")
2775 && access (argv[i], R_OK) < 0)
2777 perror_with_name (argv[i]);
2782 infiles[n_infiles].language = spec_lang;
2783 infiles[n_infiles++].name = argv[i];
2788 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2789 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2791 switches[n_switches].part1 = 0;
2792 infiles[n_infiles].name = 0;
2794 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2795 if (gcc_exec_prefix)
2797 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2798 + strlen (spec_machine) + 3);
2799 strcpy (temp, gcc_exec_prefix);
2800 strcat (temp, spec_machine);
2802 strcat (temp, spec_version);
2804 gcc_exec_prefix = temp;
2808 /* Process a spec string, accumulating and running commands. */
2810 /* These variables describe the input file name.
2811 input_file_number is the index on outfiles of this file,
2812 so that the output file name can be stored for later use by %o.
2813 input_basename is the start of the part of the input file
2814 sans all directory names, and basename_length is the number
2815 of characters starting there excluding the suffix .c or whatever. */
2817 static char *input_filename;
2818 static int input_file_number;
2819 static int input_filename_length;
2820 static int basename_length;
2821 static char *input_basename;
2822 static char *input_suffix;
2824 /* These are variables used within do_spec and do_spec_1. */
2826 /* Nonzero if an arg has been started and not yet terminated
2827 (with space, tab or newline). */
2828 static int arg_going;
2830 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2831 is a temporary file name. */
2832 static int delete_this_arg;
2834 /* Nonzero means %w has been seen; the next arg to be terminated
2835 is the output file name of this compilation. */
2836 static int this_is_output_file;
2838 /* Nonzero means %s has been seen; the next arg to be terminated
2839 is the name of a library file and we should try the standard
2840 search dirs for it. */
2841 static int this_is_library_file;
2843 /* Nonzero means that the input of this command is coming from a pipe. */
2844 static int input_from_pipe;
2846 /* Process the spec SPEC and run the commands specified therein.
2847 Returns 0 if the spec is successfully processed; -1 if failed. */
2857 delete_this_arg = 0;
2858 this_is_output_file = 0;
2859 this_is_library_file = 0;
2860 input_from_pipe = 0;
2862 value = do_spec_1 (spec, 0, NULL_PTR);
2864 /* Force out any unfinished command.
2865 If -pipe, this forces out the last command if it ended in `|'. */
2868 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2871 if (argbuf_index > 0)
2878 /* Process the sub-spec SPEC as a portion of a larger spec.
2879 This is like processing a whole spec except that we do
2880 not initialize at the beginning and we do not supply a
2881 newline by default at the end.
2882 INSWITCH nonzero means don't process %-sequences in SPEC;
2883 in this case, % is treated as an ordinary character.
2884 This is used while substituting switches.
2885 INSWITCH nonzero also causes SPC not to terminate an argument.
2887 Value is zero unless a line was finished
2888 and the command on that line reported an error. */
2891 do_spec_1 (spec, inswitch, soft_matched_part)
2894 char *soft_matched_part;
2896 register char *p = spec;
2903 /* If substituting a switch, treat all chars like letters.
2904 Otherwise, NL, SPC, TAB and % are special. */
2905 switch (inswitch ? 'a' : c)
2908 /* End of line: finish any pending argument,
2909 then run the pending command if one has been started. */
2912 obstack_1grow (&obstack, 0);
2913 string = obstack_finish (&obstack);
2914 if (this_is_library_file)
2915 string = find_file (string);
2916 store_arg (string, delete_this_arg, this_is_output_file);
2917 if (this_is_output_file)
2918 outfiles[input_file_number] = string;
2922 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2925 for (i = 0; i < n_switches; i++)
2926 if (!strcmp (switches[i].part1, "pipe"))
2929 /* A `|' before the newline means use a pipe here,
2930 but only if -pipe was specified.
2931 Otherwise, execute now and don't pass the `|' as an arg. */
2934 input_from_pipe = 1;
2935 switches[i].valid = 1;
2942 if (argbuf_index > 0)
2948 /* Reinitialize for a new command, and for a new argument. */
2951 delete_this_arg = 0;
2952 this_is_output_file = 0;
2953 this_is_library_file = 0;
2954 input_from_pipe = 0;
2958 /* End any pending argument. */
2961 obstack_1grow (&obstack, 0);
2962 string = obstack_finish (&obstack);
2963 if (this_is_library_file)
2964 string = find_file (string);
2965 store_arg (string, delete_this_arg, this_is_output_file);
2966 if (this_is_output_file)
2967 outfiles[input_file_number] = string;
2971 obstack_1grow (&obstack, c);
2977 /* Space or tab ends an argument if one is pending. */
2980 obstack_1grow (&obstack, 0);
2981 string = obstack_finish (&obstack);
2982 if (this_is_library_file)
2983 string = find_file (string);
2984 store_arg (string, delete_this_arg, this_is_output_file);
2985 if (this_is_output_file)
2986 outfiles[input_file_number] = string;
2988 /* Reinitialize for a new argument. */
2990 delete_this_arg = 0;
2991 this_is_output_file = 0;
2992 this_is_library_file = 0;
2999 fatal ("Invalid specification! Bug in cc.");
3002 obstack_grow (&obstack, input_basename, basename_length);
3007 delete_this_arg = 2;
3010 /* Dump out the directories specified with LIBRARY_PATH,
3011 followed by the absolute directories
3012 that we search for startfiles. */
3015 struct prefix_list *pl = startfile_prefix.plist;
3017 char *buffer = (char *) xmalloc (bufsize);
3020 for (; pl; pl = pl->next)
3022 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3023 /* Used on systems which record the specified -L dirs
3024 and use them to search for dynamic linking. */
3025 /* Relative directories always come from -B,
3026 and it is better not to use them for searching
3027 at run time. In particular, stage1 loses */
3028 if (pl->prefix[0] != '/')
3031 /* Try subdirectory if there is one. */
3032 if (multilib_dir != NULL)
3036 if (strlen (pl->prefix) + strlen (machine_suffix)
3038 bufsize = (strlen (pl->prefix)
3039 + strlen (machine_suffix)) * 2 + 1;
3040 buffer = (char *) xrealloc (buffer, bufsize);
3041 strcpy (buffer, pl->prefix);
3042 strcat (buffer, machine_suffix);
3043 if (is_directory (buffer, multilib_dir, 1))
3045 do_spec_1 ("-L", 0, NULL_PTR);
3046 #ifdef SPACE_AFTER_L_OPTION
3047 do_spec_1 (" ", 0, NULL_PTR);
3049 do_spec_1 (buffer, 1, NULL_PTR);
3050 do_spec_1 (multilib_dir, 1, NULL_PTR);
3051 /* Make this a separate argument. */
3052 do_spec_1 (" ", 0, NULL_PTR);
3055 if (!pl->require_machine_suffix)
3057 if (is_directory (pl->prefix, multilib_dir, 1))
3059 do_spec_1 ("-L", 0, NULL_PTR);
3060 #ifdef SPACE_AFTER_L_OPTION
3061 do_spec_1 (" ", 0, NULL_PTR);
3063 do_spec_1 (pl->prefix, 1, NULL_PTR);
3064 do_spec_1 (multilib_dir, 1, NULL_PTR);
3065 /* Make this a separate argument. */
3066 do_spec_1 (" ", 0, NULL_PTR);
3072 if (is_directory (pl->prefix, machine_suffix, 1))
3074 do_spec_1 ("-L", 0, NULL_PTR);
3075 #ifdef SPACE_AFTER_L_OPTION
3076 do_spec_1 (" ", 0, NULL_PTR);
3078 do_spec_1 (pl->prefix, 1, NULL_PTR);
3079 /* Remove slash from machine_suffix. */
3080 if (strlen (machine_suffix) >= bufsize)
3081 bufsize = strlen (machine_suffix) * 2 + 1;
3082 buffer = (char *) xrealloc (buffer, bufsize);
3083 strcpy (buffer, machine_suffix);
3084 idx = strlen (buffer);
3085 if (buffer[idx - 1] == '/')
3086 buffer[idx - 1] = 0;
3087 do_spec_1 (buffer, 1, NULL_PTR);
3088 /* Make this a separate argument. */
3089 do_spec_1 (" ", 0, NULL_PTR);
3092 if (!pl->require_machine_suffix)
3094 if (is_directory (pl->prefix, "", 1))
3096 do_spec_1 ("-L", 0, NULL_PTR);
3097 #ifdef SPACE_AFTER_L_OPTION
3098 do_spec_1 (" ", 0, NULL_PTR);
3100 /* Remove slash from pl->prefix. */
3101 if (strlen (pl->prefix) >= bufsize)
3102 bufsize = strlen (pl->prefix) * 2 + 1;
3103 buffer = (char *) xrealloc (buffer, bufsize);
3104 strcpy (buffer, pl->prefix);
3105 idx = strlen (buffer);
3106 if (buffer[idx - 1] == '/')
3107 buffer[idx - 1] = 0;
3108 do_spec_1 (buffer, 1, NULL_PTR);
3109 /* Make this a separate argument. */
3110 do_spec_1 (" ", 0, NULL_PTR);
3119 /* {...:%efoo} means report an error with `foo' as error message
3120 and don't execute any more commands for this file. */
3124 while (*p != 0 && *p != '\n') p++;
3125 buf = (char *) alloca (p - q + 1);
3126 strncpy (buf, q, p - q);
3136 if (save_temps_flag)
3138 obstack_grow (&obstack, input_basename, basename_length);
3139 delete_this_arg = 0;
3143 #ifdef MKTEMP_EACH_FILE
3144 /* ??? This has a problem: the total number of
3145 values mktemp can return is limited.
3146 That matters for the names of object files.
3147 In 2.4, do something about that. */
3148 struct temp_name *t;
3150 while (*p == '.' || isalpha (*p))
3153 /* See if we already have an association of %g/%u/%U and
3155 for (t = temp_names; t; t = t->next)
3156 if (t->length == p - suffix
3157 && strncmp (t->suffix, suffix, p - suffix) == 0
3158 && t->unique == (c != 'g'))
3161 /* Make a new association if needed. %u requires one. */
3162 if (t == 0 || c == 'u')
3166 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3167 t->next = temp_names;
3170 t->length = p - suffix;
3171 t->suffix = save_string (suffix, p - suffix);
3172 t->unique = (c != 'g');
3173 choose_temp_base ();
3174 t->filename = temp_filename;
3175 t->filename_length = temp_filename_length;
3178 obstack_grow (&obstack, t->filename, t->filename_length);
3179 delete_this_arg = 1;
3181 obstack_grow (&obstack, temp_filename, temp_filename_length);
3182 if (c == 'u' || c == 'U')
3188 sprintf (buff, "%d", unique);
3189 obstack_grow (&obstack, buff, strlen (buff));
3192 delete_this_arg = 1;
3198 obstack_grow (&obstack, input_filename, input_filename_length);
3204 struct prefix_list *pl = include_prefix.plist;
3206 if (gcc_exec_prefix)
3208 do_spec_1 ("-iprefix", 1, NULL_PTR);
3209 /* Make this a separate argument. */
3210 do_spec_1 (" ", 0, NULL_PTR);
3211 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3212 do_spec_1 (" ", 0, NULL_PTR);
3215 for (; pl; pl = pl->next)
3217 do_spec_1 ("-isystem", 1, NULL_PTR);
3218 /* Make this a separate argument. */
3219 do_spec_1 (" ", 0, NULL_PTR);
3220 do_spec_1 (pl->prefix, 1, NULL_PTR);
3221 do_spec_1 (" ", 0, NULL_PTR);
3229 for (f = 0; f < n_infiles; f++)
3230 store_arg (outfiles[f], 0, 0);
3235 this_is_library_file = 1;
3239 this_is_output_file = 1;
3244 int index = argbuf_index;
3245 /* Handle the {...} following the %W. */
3248 p = handle_braces (p + 1);
3251 /* If any args were output, mark the last one for deletion
3253 if (argbuf_index != index)
3254 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3258 /* %x{OPTION} records OPTION for %X to output. */
3264 /* Skip past the option value and make a copy. */
3269 string = save_string (p1 + 1, p - p1 - 2);
3271 /* See if we already recorded this option. */
3272 for (i = 0; i < n_linker_options; i++)
3273 if (! strcmp (string, linker_options[i]))
3279 /* This option is new; add it. */
3281 if (!linker_options)
3283 = (char **) xmalloc (n_linker_options * sizeof (char **));
3286 = (char **) xrealloc (linker_options,
3287 n_linker_options * sizeof (char **));
3289 linker_options[n_linker_options - 1] = string;
3293 /* Dump out the options accumulated previously using %x,
3294 -Xlinker and -Wl,. */
3296 for (i = 0; i < n_linker_options; i++)
3298 do_spec_1 (linker_options[i], 1, NULL_PTR);
3299 /* Make each accumulated option a separate argument. */
3300 do_spec_1 (" ", 0, NULL_PTR);
3304 /* Dump out the options accumulated previously using -Wa,. */
3306 for (i = 0; i < n_assembler_options; i++)
3308 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3309 /* Make each accumulated option a separate argument. */
3310 do_spec_1 (" ", 0, NULL_PTR);
3314 /* Here are digits and numbers that just process
3315 a certain constant string as a spec. */
3318 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3324 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3330 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3336 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3342 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3348 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3354 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3360 value = do_spec_1 (link_spec, 0, NULL_PTR);
3366 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3373 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3377 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3381 if (! strncmp (y, "-D", 2))
3382 /* Copy the whole option. */
3383 while (*y && *y != ' ' && *y != '\t')
3385 else if (*y == ' ' || *y == '\t')
3386 /* Copy whitespace to the result. */
3388 /* Don't copy other options. */
3395 value = do_spec_1 (buf, 0, NULL_PTR);
3403 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3407 /* Copy all of CPP_PREDEFINES into BUF,
3408 but put __ after every -D and at the end of each arg. */
3412 if (! strncmp (y, "-D", 2))
3420 || (*(y+1) != '_' && ! isupper (*(y+1))))
3422 /* Stick __ at front of macro name. */
3425 /* Arrange to stick __ at the end as well. */
3429 /* Copy the macro name. */
3430 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3439 /* Copy the value given, if any. */
3440 while (*y && *y != ' ' && *y != '\t')
3443 else if (*y == ' ' || *y == '\t')
3444 /* Copy whitespace to the result. */
3446 /* Don't copy -A options */
3452 /* Copy all of CPP_PREDEFINES into BUF,
3453 but put __ after every -D. */
3457 if (! strncmp (y, "-D", 2))
3462 || (*(y+1) != '_' && ! isupper (*(y+1))))
3464 /* Stick -D__ at front of macro name. */
3470 /* Copy the macro name. */
3471 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3474 /* Copy the value given, if any. */
3475 while (*y && *y != ' ' && *y != '\t')
3480 /* Do not copy this macro - we have just done it before */
3481 while (*y && *y != ' ' && *y != '\t')
3485 else if (*y == ' ' || *y == '\t')
3486 /* Copy whitespace to the result. */
3488 /* Don't copy -A options */
3494 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3498 if (! strncmp (y, "-A", 2))
3499 /* Copy the whole option. */
3500 while (*y && *y != ' ' && *y != '\t')
3502 else if (*y == ' ' || *y == '\t')
3503 /* Copy whitespace to the result. */
3505 /* Don't copy other options. */
3512 value = do_spec_1 (buf, 0, NULL_PTR);
3519 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3524 /* Here we define characters other than letters and digits. */
3527 p = handle_braces (p);
3533 obstack_1grow (&obstack, '%');
3537 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3538 do_spec_1 (" ", 0, NULL_PTR);
3541 /* Process a string found as the value of a spec given by name.
3542 This feature allows individual machine descriptions
3543 to add and use their own specs.
3544 %[...] modifies -D options the way %P does;
3545 %(...) uses the spec unmodified. */
3550 struct spec_list *sl;
3553 /* The string after the S/P is the name of a spec that is to be
3555 while (*p && *p != ')' && *p != ']')
3558 /* See if it's in the list */
3559 for (len = p - name, sl = specs; sl; sl = sl->next)
3560 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3570 value = do_spec_1 (name, 0, NULL_PTR);
3576 char *x = (char *) alloca (strlen (name) * 2 + 1);
3580 /* Copy all of NAME into BUF, but put __ after
3581 every -D and at the end of each arg, */
3584 if (! strncmp (y, "-D", 2))
3592 else if (*y == ' ' || *y == 0)
3606 value = do_spec_1 (buf, 0, NULL_PTR);
3612 /* Discard the closing paren or bracket. */
3620 int c1 = *p++; /* Select first or second version number. */
3621 char *v = compiler_version;
3623 /* If desired, advance to second version number. */
3626 /* Set P after the first period. */
3627 while (*v != 0 && *v != ' ' && *v != '.')
3632 /* Set Q at the next period or at the end. */
3634 while (*q != 0 && *q != ' ' && *q != '.')
3636 /* Empty string means zero. */
3642 /* Put that part into the command. */
3643 obstack_grow (&obstack, v, q - v);
3649 if (input_from_pipe)
3650 do_spec_1 ("-", 0, NULL_PTR);
3659 /* Backslash: treat next character as ordinary. */
3664 /* Ordinary character: put it into the current argument. */
3665 obstack_1grow (&obstack, c);
3669 return 0; /* End of string */
3672 /* Return 0 if we call do_spec_1 and that returns -1. */
3685 /* A `|' after the open-brace means,
3686 if the test fails, output a single minus sign rather than nothing.
3687 This is used in %{|!pipe:...}. */
3691 /* A `!' after the open-brace negates the condition:
3692 succeed if the specified switch is not present. */
3696 /* A `.' after the open-brace means test against the current suffix. */
3706 while (*p != ':' && *p != '}') p++;
3709 register int count = 1;
3727 int found = (input_suffix != 0
3728 && strlen (input_suffix) == p - filter
3729 && strncmp (input_suffix, filter, p - filter) == 0);
3735 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3740 else if (p[-1] == '*' && p[0] == '}')
3742 /* Substitute all matching switches as separate args. */
3745 for (i = 0; i < n_switches; i++)
3746 if (!strncmp (switches[i].part1, filter, p - filter)
3747 && check_live_switch (i, p - filter))
3752 /* Test for presence of the specified switch. */
3756 /* If name specified ends in *, as in {x*:...},
3757 check for %* and handle that case. */
3758 if (p[-1] == '*' && !negate)
3763 /* First see whether we have %*. */
3767 if (*r == '%' && r[1] == '*')
3771 /* If we do, handle that case. */
3774 /* Substitute all matching switches as separate args.
3775 But do this by substituting for %*
3776 in the text that follows the colon. */
3778 unsigned hard_match_len = p - filter - 1;
3779 char *string = save_string (p + 1, q - p - 2);
3781 for (i = 0; i < n_switches; i++)
3782 if (!strncmp (switches[i].part1, filter, hard_match_len)
3783 && check_live_switch (i, -1))
3785 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3786 /* Pass any arguments this switch has. */
3794 /* If name specified ends in *, as in {x*:...},
3795 check for presence of any switch name starting with x. */
3798 for (i = 0; i < n_switches; i++)
3800 unsigned hard_match_len = p - filter - 1;
3802 if (!strncmp (switches[i].part1, filter, hard_match_len)
3803 && check_live_switch (i, hard_match_len))
3809 /* Otherwise, check for presence of exact name specified. */
3812 for (i = 0; i < n_switches; i++)
3814 if (!strncmp (switches[i].part1, filter, p - filter)
3815 && switches[i].part1[p - filter] == 0
3816 && check_live_switch (i, -1))
3824 /* If it is as desired (present for %{s...}, absent for %{-s...})
3825 then substitute either the switch or the specified
3826 conditional text. */
3827 if (present != negate)
3835 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3841 /* Here if a %{|...} conditional fails: output a minus sign,
3842 which means "standard output" or "standard input". */
3843 do_spec_1 ("-", 0, NULL_PTR);
3850 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3851 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3852 spec, or -1 if either exact match or %* is used.
3854 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3855 whose value does not begin with "no-" is obsoleted by the same value
3856 with the "no-", similarly for a switch with the "no-" prefix. */
3859 check_live_switch (switchnum, prefix_length)
3863 char *name = switches[switchnum].part1;
3866 /* In the common case of {<at-most-one-letter>*}, a negating
3867 switch would always match, so ignore that case. We will just
3868 send the conflicting switches to the compiler phase. */
3869 if (prefix_length >= 0 && prefix_length <= 1)
3872 /* If we already processed this switch and determined if it was
3873 live or not, return our past determination. */
3874 if (switches[switchnum].live_cond != 0)
3875 return switches[switchnum].live_cond > 0;
3877 /* Now search for duplicate in a manner that depends on the name. */
3881 for (i = switchnum + 1; i < n_switches; i++)
3882 if (switches[i].part1[0] == 'O')
3884 switches[switchnum].valid = 1;
3885 switches[switchnum].live_cond = -1;
3890 case 'W': case 'f': case 'm':
3891 if (! strncmp (name + 1, "no-", 3))
3893 /* We have Xno-YYY, search for XYYY. */
3894 for (i = switchnum + 1; i < n_switches; i++)
3895 if (switches[i].part1[0] == name[0]
3896 && ! strcmp (&switches[i].part1[1], &name[4]))
3898 switches[switchnum].valid = 1;
3899 switches[switchnum].live_cond = -1;
3905 /* We have XYYY, search for Xno-YYY. */
3906 for (i = switchnum + 1; i < n_switches; i++)
3907 if (switches[i].part1[0] == name[0]
3908 && switches[i].part1[1] == 'n'
3909 && switches[i].part1[2] == 'o'
3910 && switches[i].part1[3] == '-'
3911 && !strcmp (&switches[i].part1[4], &name[1]))
3913 switches[switchnum].valid = 1;
3914 switches[switchnum].live_cond = -1;
3921 /* Otherwise the switch is live. */
3922 switches[switchnum].live_cond = 1;
3926 /* Pass a switch to the current accumulating command
3927 in the same form that we received it.
3928 SWITCHNUM identifies the switch; it is an index into
3929 the vector of switches gcc received, which is `switches'.
3930 This cannot fail since it never finishes a command line.
3932 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3935 give_switch (switchnum, omit_first_word)
3937 int omit_first_word;
3939 if (!omit_first_word)
3941 do_spec_1 ("-", 0, NULL_PTR);
3942 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3944 do_spec_1 (" ", 0, NULL_PTR);
3945 if (switches[switchnum].args != 0)
3948 for (p = switches[switchnum].args; *p; p++)
3950 do_spec_1 (*p, 1, NULL_PTR);
3951 do_spec_1 (" ", 0, NULL_PTR);
3954 switches[switchnum].valid = 1;
3957 /* Search for a file named NAME trying various prefixes including the
3958 user's -B prefix and some standard ones.
3959 Return the absolute file name found. If nothing is found, return NAME. */
3967 /* Try multilib_dir if it is defined. */
3968 if (multilib_dir != NULL)
3972 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3973 strcpy (try, multilib_dir);
3977 newname = find_a_file (&startfile_prefix, try, R_OK);
3979 /* If we don't find it in the multi library dir, then fall
3980 through and look for it in the normal places. */
3981 if (newname != NULL)
3985 newname = find_a_file (&startfile_prefix, name, R_OK);
3986 return newname ? newname : name;
3989 /* Determine whether a directory exists. If LINKER, return 0 for
3990 certain fixed names not needed by the linker. If not LINKER, it is
3991 only important to return 0 if the host machine has a small ARG_MAX
3995 is_directory (path1, path2, linker)
4000 int len1 = strlen (path1);
4001 int len2 = strlen (path2);
4002 char *path = (char *) alloca (3 + len1 + len2);
4006 #ifndef SMALL_ARG_MAX
4011 /* Construct the path from the two parts. Ensure the string ends with "/.".
4012 The resulting path will be a directory even if the given path is a
4014 bcopy (path1, path, len1);
4015 bcopy (path2, path + len1, len2);
4016 cp = path + len1 + len2;
4022 /* Exclude directories that the linker is known to search. */
4024 && ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
4025 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0)))
4028 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4031 /* On fatal signals, delete all the temporary files. */
4034 fatal_error (signum)
4037 signal (signum, SIG_DFL);
4038 delete_failure_queue ();
4039 delete_temp_files ();
4040 /* Get the same signal again, this time not handled,
4041 so its normal effect occurs. */
4042 kill (getpid (), signum);
4053 int linker_was_run = 0;
4054 char *explicit_link_files;
4058 p = argv[0] + strlen (argv[0]);
4059 while (p != argv[0] && p[-1] != '/') --p;
4062 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4063 signal (SIGINT, fatal_error);
4065 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4066 signal (SIGHUP, fatal_error);
4068 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4069 signal (SIGTERM, fatal_error);
4071 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4072 signal (SIGPIPE, fatal_error);
4076 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4078 obstack_init (&obstack);
4080 /* Set up to remember the pathname of gcc and any options
4081 needed for collect. We use argv[0] instead of programname because
4082 we need the complete pathname. */
4083 obstack_init (&collect_obstack);
4084 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4085 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4086 putenv (obstack_finish (&collect_obstack));
4088 /* Choose directory for temp files. */
4090 choose_temp_base ();
4092 /* Make a table of what switches there are (switches, n_switches).
4093 Make a table of specified input files (infiles, n_infiles).
4094 Decode switches that are handled locally. */
4096 process_command (argc, argv);
4098 /* Initialize the vector of specs to just the default.
4099 This means one element containing 0s, as a terminator. */
4101 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4102 bcopy ((char *) default_compilers, (char *) compilers,
4103 sizeof default_compilers);
4104 n_compilers = n_default_compilers;
4106 /* Read specs from a file if there is one. */
4108 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
4109 just_machine_suffix = concat (spec_machine, "/", "");
4111 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
4112 /* Read the specs file unless it is a default one. */
4113 if (specs_file != 0 && strcmp (specs_file, "specs"))
4114 read_specs (specs_file);
4116 /* If not cross-compiling, look for startfiles in the standard places. */
4117 /* The fact that these are done here, after reading the specs file,
4118 means that it cannot be found in these directories.
4119 But that's okay. It should never be there anyway. */
4122 #ifdef MD_EXEC_PREFIX
4123 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4124 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
4127 #ifdef MD_STARTFILE_PREFIX
4128 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
4131 #ifdef MD_STARTFILE_PREFIX_1
4132 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
4135 /* If standard_startfile_prefix is relative, base it on
4136 standard_exec_prefix. This lets us move the installed tree
4137 as a unit. If GCC_EXEC_PREFIX is defined, base
4138 standard_startfile_prefix on that as well. */
4139 if (*standard_startfile_prefix == '/')
4140 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
4144 if (gcc_exec_prefix)
4145 add_prefix (&startfile_prefix,
4146 concat (gcc_exec_prefix,
4147 standard_startfile_prefix,
4150 add_prefix (&startfile_prefix,
4151 concat (standard_exec_prefix,
4153 standard_startfile_prefix),
4157 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
4159 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
4161 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4162 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
4166 /* Now we have the specs.
4167 Set the `valid' bits for switches that match anything in any spec. */
4169 validate_all_switches ();
4171 /* Now that we have the switches and the specs, set
4172 the subdirectory based on the options. */
4173 set_multilib_dir ();
4175 /* Warn about any switches that no pass was interested in. */
4177 for (i = 0; i < n_switches; i++)
4178 if (! switches[i].valid)
4179 error ("unrecognized option `-%s'", switches[i].part1);
4181 /* Obey some of the options. */
4183 if (print_file_name)
4185 printf ("%s\n", find_file (print_file_name));
4189 if (print_prog_name)
4191 char *newname = find_a_file (&exec_prefix, print_prog_name, X_OK);
4192 printf ("%s\n", (newname ? newname : print_prog_name));
4196 if (print_multi_lib)
4198 print_multilib_info ();
4202 if (print_multi_directory)
4204 if (multilib_dir == NULL)
4207 printf ("%s\n", multilib_dir);
4213 fprintf (stderr, "gcc version %s\n", version_string);
4219 fatal ("No input files");
4221 /* Make a place to record the compiler output file names
4222 that correspond to the input files. */
4224 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4225 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4227 /* Record which files were specified explicitly as link input. */
4229 explicit_link_files = xmalloc (n_infiles);
4230 bzero (explicit_link_files, n_infiles);
4232 for (i = 0; i < n_infiles; i++)
4234 register struct compiler *cp = 0;
4235 int this_file_error = 0;
4237 /* Tell do_spec what to substitute for %i. */
4239 input_filename = infiles[i].name;
4240 input_filename_length = strlen (input_filename);
4241 input_file_number = i;
4243 /* Use the same thing in %o, unless cp->spec says otherwise. */
4245 outfiles[i] = input_filename;
4247 /* Figure out which compiler from the file's suffix. */
4249 cp = lookup_compiler (infiles[i].name, input_filename_length,
4250 infiles[i].language);
4254 /* Ok, we found an applicable compiler. Run its spec. */
4255 /* First say how much of input_filename to substitute for %b */
4259 input_basename = input_filename;
4260 for (p = input_filename; *p; p++)
4262 input_basename = p + 1;
4264 /* Find a suffix starting with the last period,
4265 and set basename_length to exclude that suffix. */
4266 basename_length = strlen (input_basename);
4267 p = input_basename + basename_length;
4268 while (p != input_basename && *p != '.') --p;
4269 if (*p == '.' && p != input_basename)
4271 basename_length = p - input_basename;
4272 input_suffix = p + 1;
4278 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4280 len += strlen (cp->spec[j]);
4282 p = (char *) xmalloc (len + 1);
4285 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4288 strcpy (p + len, cp->spec[j]);
4289 len += strlen (cp->spec[j]);
4292 value = do_spec (p);
4295 this_file_error = 1;
4298 /* If this file's name does not contain a recognized suffix,
4299 record it as explicit linker input. */
4302 explicit_link_files[i] = 1;
4304 /* Clear the delete-on-failure queue, deleting the files in it
4305 if this compilation failed. */
4307 if (this_file_error)
4309 delete_failure_queue ();
4312 /* If this compilation succeeded, don't delete those files later. */
4313 clear_failure_queue ();
4316 /* Run ld to link all the compiler output files. */
4318 if (error_count == 0)
4320 int tmp = execution_count;
4324 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4326 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
4327 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
4329 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4331 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4332 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4335 for (i = 0; i < n_switches; i++)
4339 obstack_grow (&collect_obstack, " ", 1);
4342 obstack_grow (&collect_obstack, "-", 1);
4343 obstack_grow (&collect_obstack, switches[i].part1,
4344 strlen (switches[i].part1));
4346 for (args = switches[i].args; args && *args; args++)
4348 obstack_grow (&collect_obstack, " ", 1);
4349 obstack_grow (&collect_obstack, *args, strlen (*args));
4352 obstack_grow (&collect_obstack, "\0", 1);
4353 putenv (obstack_finish (&collect_obstack));
4355 value = do_spec (link_command_spec);
4358 linker_was_run = (tmp != execution_count);
4361 /* Warn if a -B option was specified but the prefix was never used. */
4362 unused_prefix_warnings (&exec_prefix);
4363 unused_prefix_warnings (&startfile_prefix);
4365 /* If options said don't run linker,
4366 complain about input files to be given to the linker. */
4368 if (! linker_was_run && error_count == 0)
4369 for (i = 0; i < n_infiles; i++)
4370 if (explicit_link_files[i])
4371 error ("%s: linker input file unused since linking not done",
4374 /* Delete some or all of the temporary files we made. */
4377 delete_failure_queue ();
4378 delete_temp_files ();
4380 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4385 /* Find the proper compilation spec for the file name NAME,
4386 whose length is LENGTH. LANGUAGE is the specified language,
4387 or 0 if none specified. */
4389 static struct compiler *
4390 lookup_compiler (name, length, language)
4395 struct compiler *cp;
4397 /* Look for the language, if one is spec'd. */
4400 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4404 if (cp->suffix[0] == '@'
4405 && !strcmp (cp->suffix + 1, language))
4409 error ("language %s not recognized", language);
4412 /* Look for a suffix. */
4413 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4415 if (/* The suffix `-' matches only the file name `-'. */
4416 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4418 (strlen (cp->suffix) < length
4419 /* See if the suffix matches the end of NAME. */
4420 && !strcmp (cp->suffix,
4421 name + length - strlen (cp->suffix))))
4423 if (cp->spec[0][0] == '@')
4425 struct compiler *new;
4426 /* An alias entry maps a suffix to a language.
4427 Search for the language; pass 0 for NAME and LENGTH
4428 to avoid infinite recursion if language not found.
4429 Construct the new compiler spec. */
4430 language = cp->spec[0] + 1;
4431 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4432 new->suffix = cp->suffix;
4433 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4434 (char *) new->spec, sizeof new->spec);
4437 /* A non-alias entry: return it. */
4449 register char *value = (char *) malloc (size);
4451 fatal ("virtual memory exhausted");
4456 xrealloc (ptr, size)
4460 register char *value = (char *) realloc (ptr, size);
4462 fatal ("virtual memory exhausted");
4466 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4472 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
4473 char *result = xmalloc (len1 + len2 + len3 + 1);
4475 strcpy (result, s1);
4476 strcpy (result + len1, s2);
4477 strcpy (result + len1 + len2, s3);
4478 *(result + len1 + len2 + len3) = 0;
4484 save_string (s, len)
4488 register char *result = xmalloc (len + 1);
4490 bcopy (s, result, len);
4496 pfatal_with_name (name)
4501 if (errno < sys_nerr)
4502 s = concat ("%s: ", sys_errlist[errno], "");
4504 s = "cannot open %s";
4509 perror_with_name (name)
4514 if (errno < sys_nerr)
4515 s = concat ("%s: ", sys_errlist[errno], "");
4517 s = "cannot open %s";
4527 if (errno < sys_nerr)
4528 s = concat ("installation problem, cannot exec %s: ",
4529 sys_errlist[errno], "");
4531 s = "installation problem, cannot exec %s";
4535 /* More 'friendly' abort that prints the line and file.
4536 config.h can #define abort fancy_abort if you like that sort of thing. */
4541 fatal ("Internal gcc abort.");
4546 /* Output an error message and exit */
4549 fatal VPROTO((char *format, ...))
4556 VA_START (ap, format);
4559 format = va_arg (ap, char*);
4562 fprintf (stderr, "%s: ", programname);
4563 vfprintf (stderr, format, ap);
4565 fprintf (stderr, "\n");
4566 delete_temp_files ();
4571 error VPROTO((char *format, ...))
4578 VA_START (ap, format);
4581 format = va_arg (ap, char*);
4584 fprintf (stderr, "%s: ", programname);
4585 vfprintf (stderr, format, ap);
4588 fprintf (stderr, "\n");
4591 #else /* not HAVE_VPRINTF */
4594 fatal (msg, arg1, arg2)
4595 char *msg, *arg1, *arg2;
4597 error (msg, arg1, arg2);
4598 delete_temp_files ();
4603 error (msg, arg1, arg2)
4604 char *msg, *arg1, *arg2;
4606 fprintf (stderr, "%s: ", programname);
4607 fprintf (stderr, msg, arg1, arg2);
4608 fprintf (stderr, "\n");
4611 #endif /* not HAVE_VPRINTF */
4615 validate_all_switches ()
4617 struct compiler *comp;
4620 struct spec_list *spec;
4622 for (comp = compilers; comp->spec[0]; comp++)
4625 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4629 if (c == '%' && *p == '{')
4630 /* We have a switch spec. */
4631 validate_switches (p + 1);
4635 /* look through the linked list of extra specs read from the specs file */
4636 for (spec = specs; spec ; spec = spec->next)
4640 if (c == '%' && *p == '{')
4641 /* We have a switch spec. */
4642 validate_switches (p + 1);
4645 p = link_command_spec;
4647 if (c == '%' && *p == '{')
4648 /* We have a switch spec. */
4649 validate_switches (p + 1);
4651 /* Now notice switches mentioned in the machine-specific specs. */
4655 if (c == '%' && *p == '{')
4656 /* We have a switch spec. */
4657 validate_switches (p + 1);
4661 if (c == '%' && *p == '{')
4662 /* We have a switch spec. */
4663 validate_switches (p + 1);
4667 if (c == '%' && *p == '{')
4668 /* We have a switch spec. */
4669 validate_switches (p + 1);
4671 p = signed_char_spec;
4673 if (c == '%' && *p == '{')
4674 /* We have a switch spec. */
4675 validate_switches (p + 1);
4679 if (c == '%' && *p == '{')
4680 /* We have a switch spec. */
4681 validate_switches (p + 1);
4685 if (c == '%' && *p == '{')
4686 /* We have a switch spec. */
4687 validate_switches (p + 1);
4691 if (c == '%' && *p == '{')
4692 /* We have a switch spec. */
4693 validate_switches (p + 1);
4697 if (c == '%' && *p == '{')
4698 /* We have a switch spec. */
4699 validate_switches (p + 1);
4703 if (c == '%' && *p == '{')
4704 /* We have a switch spec. */
4705 validate_switches (p + 1);
4708 /* Look at the switch-name that comes after START
4709 and mark as valid all supplied switches that match it. */
4712 validate_switches (start)
4715 register char *p = start;
4730 while (*p != ':' && *p != '}') p++;
4734 else if (p[-1] == '*')
4736 /* Mark all matching switches as valid. */
4738 for (i = 0; i < n_switches; i++)
4739 if (!strncmp (switches[i].part1, filter, p - filter))
4740 switches[i].valid = 1;
4744 /* Mark an exact matching switch as valid. */
4745 for (i = 0; i < n_switches; i++)
4747 if (!strncmp (switches[i].part1, filter, p - filter)
4748 && switches[i].part1[p - filter] == 0)
4749 switches[i].valid = 1;
4754 /* Check whether a particular argument was used. */
4763 for (i = 0; i < n_switches; i++)
4764 if (! strncmp (switches[i].part1, p, len)
4765 && strlen (switches[i].part1) == len)
4770 /* Work out the subdirectory to use based on the
4771 options. The format of multilib_select is a list of elements.
4772 Each element is a subdirectory name followed by a list of options
4773 followed by a semicolon. gcc will consider each line in turn. If
4774 none of the options beginning with an exclamation point are
4775 present, and all of the other options are present, that
4776 subdirectory will be used. */
4781 char *p = multilib_select;
4783 char *this_path, *this_arg;
4788 /* Ignore newlines. */
4795 /* Get the initial path. */
4803 this_path_len = p - this_path;
4805 /* Check the arguments. */
4820 while (*p != ' ' && *p != ';')
4827 if (*this_arg == '!')
4828 failed = used_arg (this_arg + 1, p - (this_arg + 1));
4830 failed = ! used_arg (this_arg, p - this_arg);
4838 if (this_path_len != 1
4839 || this_path[0] != '.')
4841 multilib_dir = xmalloc (this_path_len + 1);
4842 strncpy (multilib_dir, this_path, this_path_len);
4843 multilib_dir[this_path_len] = '\0';
4852 /* Print out the multiple library subdirectory selection
4853 information. This prints out a series of lines. Each line looks
4854 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4855 required. Only the desired options are printed out, the negative
4856 matches. The options are print without a leading dash. There are
4857 no spaces to make it easy to use the information in the shell.
4858 Each subdirectory is printed only once. This assumes the ordering
4859 generated by the genmultilib script. */
4862 print_multilib_info ()
4864 char *p = multilib_select;
4865 char *last_path, *this_path;
4866 int last_path_len, skip, use_arg;
4870 /* Ignore newlines. */
4877 /* Get the initial path. */
4886 /* If this is a duplicate, skip it. */
4887 skip = (p - this_path == last_path_len
4888 && ! strncmp (last_path, this_path, last_path_len));
4890 last_path = this_path;
4891 last_path_len = p - this_path;
4897 for (p1 = last_path; p1 < p; p1++)
4916 use_arg = *p != '!';
4921 while (*p != ' ' && *p != ';')