1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992 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". */
34 #include <sys/types.h>
38 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
50 /* Define a generic NULL if one hasn't already been defined. */
57 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
58 #define GENERIC_PTR void *
60 #define GENERIC_PTR char *
65 #define NULL_PTR ((GENERIC_PTR)0)
72 /* On MSDOS, write temp files in current dir
73 because there's no place else we can expect to use. */
80 /* Test if something is a normal file. */
82 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
85 /* Test if something is a directory. */
87 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
90 /* By default there is no special suffix for executables. */
91 #ifndef EXECUTABLE_SUFFIX
92 #define EXECUTABLE_SUFFIX ""
95 /* By default, colon separates directories in a path. */
96 #ifndef PATH_SEPARATOR
97 #define PATH_SEPARATOR ':'
100 #define obstack_chunk_alloc xmalloc
101 #define obstack_chunk_free free
104 extern char *getenv ();
106 extern int errno, sys_nerr;
107 extern char *sys_errlist[];
109 extern int execv (), execvp ();
111 /* If a stage of compilation returns an exit status >= 1,
112 compilation of that file ceases. */
114 #define MIN_FATAL_STATUS 1
116 /* Flag saying to print the full filename of libgcc.a
117 as found through our usual search mechanism. */
119 static int print_libgcc_file_name;
121 /* Flag indicating whether we should print the command and arguments */
123 static int verbose_flag;
125 /* Nonzero means write "temp" files in source directory
126 and use the source file's name in them, and don't delete them. */
128 static int save_temps_flag;
130 /* The compiler version specified with -V */
132 static char *spec_version;
134 /* The target machine specified with -b. */
136 static char *spec_machine = DEFAULT_TARGET_MACHINE;
138 /* Nonzero if cross-compiling.
139 When -b is used, the value comes from the `specs' file. */
142 static int cross_compile = 1;
144 static int cross_compile = 0;
147 /* This is the obstack which we use to allocate many strings. */
149 static struct obstack obstack;
151 /* This is the obstack to build an environment variable to pass to
152 collect2 that describes all of the relevant switches of what to
153 pass the compiler in building the list of pointers to constructors
156 static struct obstack collect_obstack;
158 extern char *version_string;
160 static void set_spec ();
161 static struct compiler *lookup_compiler ();
162 static char *find_a_file ();
163 static void add_prefix ();
164 static char *skip_whitespace ();
165 static void record_temp_file ();
166 static char *handle_braces ();
167 static char *save_string ();
168 static char *concat ();
169 static int do_spec ();
170 static int do_spec_1 ();
171 static char *find_file ();
172 static int is_linker_dir ();
173 static void validate_switches ();
174 static void validate_all_switches ();
175 static void give_switch ();
176 static void pfatal_with_name ();
177 static void perror_with_name ();
178 static void perror_exec ();
179 static void fatal ();
180 static void error ();
185 /* Specs are strings containing lines, each of which (if not blank)
186 is made up of a program name, and arguments separated by spaces.
187 The program name must be exact and start from root, since no path
188 is searched and it is unreliable to depend on the current working directory.
189 Redirection of input or output is not supported; the subprograms must
190 accept filenames saying what files to read and write.
192 In addition, the specs can contain %-sequences to substitute variable text
193 or for conditional text. Here is a table of all defined %-sequences.
194 Note that spaces are not generated automatically around the results of
195 expanding these sequences; therefore, you can concatenate them together
196 or with constant text in a single argument.
198 %% substitute one % into the program name or argument.
199 %i substitute the name of the input file being processed.
200 %b substitute the basename of the input file being processed.
201 This is the substring up to (and not including) the last period
202 and not including the directory.
203 %g substitute the temporary-file-name-base. This is a string chosen
204 once per compilation. Different temporary file names are made by
205 concatenation of constant strings on the end, as in `%g.s'.
206 %g also has the same effect of %d.
207 %u like %g, but make the temporary file name unique.
208 %d marks the argument containing or following the %d as a
209 temporary file name, so that that file will be deleted if CC exits
210 successfully. Unlike %g, this contributes no text to the argument.
211 %w marks the argument containing or following the %w as the
212 "output file" of this compilation. This puts the argument
213 into the sequence of arguments that %o will substitute later.
215 like %{...} but mark last argument supplied within
216 as a file to be deleted on failure.
217 %o substitutes the names of all the output files, with spaces
218 automatically placed around them. You should write spaces
219 around the %o as well or the results are undefined.
220 %o is for use in the specs for running the linker.
221 Input files whose names have no recognized suffix are not compiled
222 at all, but they are included among the output files, so they will
224 %p substitutes the standard macro predefinitions for the
225 current target machine. Use this when running cpp.
226 %P like %p, but puts `__' before and after the name of each macro.
227 (Except macros that already have __.)
229 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
230 %s current argument is the name of a library or startup file of some sort.
231 Search for that file in a standard list of directories
232 and substitute the full name found.
233 %eSTR Print STR as an error message. STR is terminated by a newline.
234 Use this when inconsistent options are detected.
235 %x{OPTION} Accumulate an option for %X.
236 %X Output the accumulated linker options specified by compilations.
237 %Y Output the accumulated assembler options specified by compilations.
238 %a process ASM_SPEC as a spec.
239 This allows config.h to specify part of the spec for running as.
240 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
241 used here. This can be used to run a post-processor after the
242 assembler has done it's job.
243 %D Dump out a -L option for each directory in library_prefix,
244 followed by a -L option for each directory in startfile_prefix.
245 %l process LINK_SPEC as a spec.
246 %L process LIB_SPEC as a spec.
247 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
248 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
249 %c process SIGNED_CHAR_SPEC as a spec.
250 %C process CPP_SPEC as a spec. A capital C is actually used here.
251 %1 process CC1_SPEC as a spec.
252 %2 process CC1PLUS_SPEC as a spec.
253 %* substitute the variable part of a matched option. (See below.)
254 Note that each comma in the substituted string is replaced by
256 %{S} substitutes the -S switch, if that switch was given to CC.
257 If that switch was not specified, this substitutes nothing.
258 Here S is a metasyntactic variable.
259 %{S*} substitutes all the switches specified to CC whose names start
260 with -S. This is used for -o, -D, -I, etc; switches that take
261 arguments. CC considers `-o foo' as being one switch whose
262 name starts with `o'. %{o*} would substitute this text,
263 including the space; thus, two arguments would be generated.
264 %{S*:X} substitutes X if one or more switches whose names with -S are
265 specified to CC. Note that the tail part of the -S option
266 (i.e. the part matched by the `*') will be substituted for each
267 occurrence of %* within X.
268 %{S:X} substitutes X, but only if the -S switch was given to CC.
269 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
270 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
271 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
272 %{.S:X} substitutes X, but only if processing a file with suffix S.
273 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
274 %(Spec) processes a specification defined in a specs file as *Spec:
275 %[Spec] as above, but put __ around -D arguments
277 The conditional text X in a %{S:X} or %{!S:X} construct may contain
278 other nested % constructs or spaces, or even newlines. They are
279 processed as usual, as described above.
281 The character | is used to indicate that a command should be piped to
282 the following command, but only if -pipe is specified.
284 Note that it is built into CC which switches take arguments and which
285 do not. You might think it would be useful to generalize this to
286 allow each compiler's spec to say which switches take arguments. But
287 this cannot be done in a consistent fashion. CC cannot even decide
288 which input files have been specified without knowing which switches
289 take arguments, and it must know which input files to compile in order
290 to tell which compilers to run.
292 CC also knows implicitly that arguments starting in `-l' are to be
293 treated as compiler output files, and passed to the linker in their
294 proper position among the other output files. */
296 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
298 /* config.h can define ASM_SPEC to provide extra args to the assembler
299 or extra switch-translations. */
304 /* config.h can define ASM_FINAL_SPEC to run a post processor after
305 the assembler has run. */
306 #ifndef ASM_FINAL_SPEC
307 #define ASM_FINAL_SPEC ""
310 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
311 or extra switch-translations. */
316 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
317 or extra switch-translations. */
322 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
323 or extra switch-translations. */
325 #define CC1PLUS_SPEC ""
328 /* config.h can define LINK_SPEC to provide extra args to the linker
329 or extra switch-translations. */
334 /* config.h can define LIB_SPEC to override the default libraries. */
336 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
339 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
340 #ifndef STARTFILE_SPEC
341 #define STARTFILE_SPEC \
342 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
345 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
346 Make the string nonempty to require spaces there. */
347 #ifndef SWITCHES_NEED_SPACES
348 #define SWITCHES_NEED_SPACES ""
351 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
353 #define ENDFILE_SPEC ""
356 /* This spec is used for telling cpp whether char is signed or not. */
357 #ifndef SIGNED_CHAR_SPEC
358 #define SIGNED_CHAR_SPEC \
359 (DEFAULT_SIGNED_CHAR ? "%{funsigned-char:-D__CHAR_UNSIGNED__}" \
360 : "%{!fsigned-char:-D__CHAR_UNSIGNED__}")
363 static char *cpp_spec = CPP_SPEC;
364 static char *cpp_predefines = CPP_PREDEFINES;
365 static char *cc1_spec = CC1_SPEC;
366 static char *cc1plus_spec = CC1PLUS_SPEC;
367 static char *signed_char_spec = SIGNED_CHAR_SPEC;
368 static char *asm_spec = ASM_SPEC;
369 static char *asm_final_spec = ASM_FINAL_SPEC;
370 static char *link_spec = LINK_SPEC;
371 static char *lib_spec = LIB_SPEC;
372 static char *endfile_spec = ENDFILE_SPEC;
373 static char *startfile_spec = STARTFILE_SPEC;
374 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
376 /* This defines which switch letters take arguments. */
378 #ifndef SWITCH_TAKES_ARG
379 #define SWITCH_TAKES_ARG(CHAR) \
380 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
381 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
382 || (CHAR) == 'I' || (CHAR) == 'm' \
383 || (CHAR) == 'L' || (CHAR) == 'A')
386 /* This defines which multi-letter switches take arguments. */
388 #ifndef WORD_SWITCH_TAKES_ARG
389 #define WORD_SWITCH_TAKES_ARG(STR) \
390 (!strcmp (STR, "Tdata") || !strcmp (STR, "include") \
391 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info"))
394 /* Record the mapping from file suffixes for compilation specs. */
398 char *suffix; /* Use this compiler for input files
399 whose names end in this suffix. */
400 char *spec; /* To use this compiler, pass this spec
404 /* Pointer to a vector of `struct compiler' that gives the spec for
405 compiling a file, based on its suffix.
406 A file that does not end in any of these suffixes will be passed
407 unchanged to the loader and nothing else will be done to it.
409 An entry containing two 0s is used to terminate the vector.
411 If multiple entries match a file, the last matching one is used. */
413 static struct compiler *compilers;
415 /* Number of entries in `compilers', not counting the null terminator. */
417 static int n_compilers;
419 /* The default list of file name suffixes and their compilation specs. */
421 static struct compiler default_compilers[] =
425 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
426 %{C:%{!E:%eGNU C does not support -C without using -E}}\
427 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
428 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
429 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
430 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
431 %{traditional-cpp:-traditional}\
432 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
433 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n\
434 %{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
435 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
436 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
437 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
439 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
440 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
441 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
442 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
443 %{!pipe:%g.s} %A\n }}}}"},
445 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
446 %{C:%{!E:%eGNU C does not support -C without using -E}}\
447 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
448 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
449 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
450 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
451 %{traditional-cpp:-traditional}\
452 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
454 %{!E:%e-E required when input is from standard input}"},
455 {".m", "@objective-c"},
457 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
458 %{C:%{!E:%eGNU C does not support -C without using -E}}\
459 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
460 -undef -D__OBJC__ -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
461 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
462 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
463 %{traditional-cpp:-traditional}\
464 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
465 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n\
466 %{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
467 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
468 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
469 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
470 -lang-objc %{gen-decls} \
472 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
473 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
474 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
475 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
476 %{!pipe:%g.s} %A\n }}}}"},
479 "%{!E:%eCompilation of header file requested} \
480 cpp %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
481 %{C:%{!E:%eGNU C does not support -C without using -E}}\
482 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
483 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
484 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
485 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
486 %{traditional-cpp:-traditional}\
487 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
493 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
494 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
495 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
496 -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus \
497 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
498 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
499 %{traditional-cpp:-traditional} %{trigraphs}\
500 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
501 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n\
502 %{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.i} %1 %2\
503 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
504 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
505 %{v:-version} %{pg:-p} %{p} %{f*}\
507 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
508 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
509 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
510 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
511 %{!pipe:%g.s} %A\n }}}}"},
512 {".i", "@cpp-output"},
514 "cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
515 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
516 %{v:-version} %{pg:-p} %{p} %{f*}\
518 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
519 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
520 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
521 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n }"},
522 {".ii", "@c++-cpp-output"},
524 "cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
525 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
526 %{v:-version} %{pg:-p} %{p} %{f*}\
528 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
529 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
530 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
531 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
532 %{!pipe:%g.s} %A\n }"},
533 {".s", "@assembler"},
535 "%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
536 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %i %A\n }"},
537 {".S", "@assembler-with-cpp"},
538 {"@assembler-with-cpp",
539 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
540 %{C:%{!E:%eGNU C does not support -C without using -E}}\
541 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
542 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
543 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
544 %{traditional-cpp:-traditional}\
545 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
546 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n\
547 %{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
548 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
549 %{!pipe:%g.s} %A\n }}}}"},
550 /* Mark end of table */
554 /* Number of elements in default_compilers, not counting the terminator. */
556 static int n_default_compilers
557 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
559 /* Here is the spec for running the linker, after compiling all files. */
561 #ifdef LINK_LIBGCC_SPECIAL
562 /* Have gcc do the search for libgcc.a. */
563 /* -u* was put back because both BSD and SysV seem to support it. */
564 /* %{static:} simply prevents an error message if the target machine
565 doesn't handle -static. */
566 static char *link_command_spec = "\
567 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
568 %{r} %{s} %{T*} %{t} %{u*} %{x} %{z}\
569 %{!A:%{!nostdlib:%S}} %{static:}\
570 %{L*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}";
572 /* Use -L and have the linker do the search for -lgcc. */
573 static char *link_command_spec = "\
574 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
575 %{r} %{s} %{T*} %{t} %{u*} %{x} %{z}\
576 %{!A:%{!nostdlib:%S}} %{static:}\
577 %{L*} %D %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}";
580 /* A vector of options to give to the linker.
581 These options are accumulated by -Xlinker and -Wl,
582 and substituted into the linker command with %X. */
583 static int n_linker_options;
584 static char **linker_options;
586 /* A vector of options to give to the assembler.
587 These options are accumulated by -Wa,
588 and substituted into the assembler command with %X. */
589 static int n_assembler_options;
590 static char **assembler_options;
592 /* Read compilation specs from a file named FILENAME,
593 replacing the default ones.
595 A suffix which starts with `*' is a definition for
596 one of the machine-specific sub-specs. The "suffix" should be
597 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
598 The corresponding spec is stored in asm_spec, etc.,
599 rather than in the `compilers' vector.
601 Anything invalid in the file is a fatal error. */
604 read_specs (filename)
613 fprintf (stderr, "Reading specs from %s\n", filename);
615 /* Open and stat the file. */
616 desc = open (filename, 0, 0);
618 pfatal_with_name (filename);
619 if (stat (filename, &statbuf) < 0)
620 pfatal_with_name (filename);
622 /* Read contents of file into BUFFER. */
623 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
624 read (desc, buffer, (unsigned) statbuf.st_size);
625 buffer[statbuf.st_size] = 0;
628 /* Scan BUFFER for specs, putting them in the vector. */
634 char *in, *out, *p1, *p2;
636 /* Advance P in BUFFER to the next nonblank nocomment line. */
637 p = skip_whitespace (p);
641 /* Find the colon that should end the suffix. */
643 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
644 /* The colon shouldn't be missing. */
646 fatal ("specs file malformed after %d characters", p1 - buffer);
647 /* Skip back over trailing whitespace. */
649 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
650 /* Copy the suffix to a string. */
651 suffix = save_string (p, p2 - p);
652 /* Find the next line. */
653 p = skip_whitespace (p1 + 1);
655 fatal ("specs file malformed after %d characters", p - buffer);
657 /* Find next blank line. */
658 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
659 /* Specs end at the blank line and do not include the newline. */
660 spec = save_string (p, p1 - p);
663 /* Delete backslash-newline sequences from the spec. */
668 if (in[0] == '\\' && in[1] == '\n')
670 else if (in[0] == '#')
672 while (*in && *in != '\n') in++;
679 if (suffix[0] == '*')
681 if (! strcmp (suffix, "*link_command"))
682 link_command_spec = spec;
684 set_spec (suffix + 1, spec);
688 /* Add this pair to the vector. */
690 = ((struct compiler *)
691 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
692 compilers[n_compilers].suffix = suffix;
693 compilers[n_compilers].spec = spec;
698 link_command_spec = spec;
701 if (link_command_spec == 0)
702 fatal ("spec file has no spec for linking");
711 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
712 be considered whitespace. */
713 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
715 else if (*p == '\n' || *p == ' ' || *p == '\t')
719 while (*p != '\n') p++;
729 /* Structure to keep track of the specs that have been defined so far. These
730 are accessed using %(specname) or %[specname] in a compiler or link spec. */
734 char *name; /* Name of the spec. */
735 char *spec; /* The spec itself. */
736 struct spec_list *next; /* Next spec in linked list. */
739 /* List of specs that have been defined so far. */
741 static struct spec_list *specs = (struct spec_list *) 0;
743 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
744 removed; If the spec starts with a + then SPEC is added to the end of the
748 set_spec (name, spec)
752 struct spec_list *sl;
755 /* See if the spec already exists */
756 for (sl = specs; sl; sl = sl->next)
757 if (strcmp (sl->name, name) == 0)
762 /* Not found - make it */
763 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
764 sl->name = save_string (name, strlen (name));
765 sl->spec = save_string ("", 0);
771 if (name && spec[0] == '+' && isspace (spec[1]))
772 sl->spec = concat (old_spec, spec + 1, "");
774 sl->spec = save_string (spec, strlen (spec));
776 if (! strcmp (name, "asm"))
778 else if (! strcmp (name, "asm_final"))
779 asm_final_spec = sl->spec;
780 else if (! strcmp (name, "cc1"))
782 else if (! strcmp (name, "cc1plus"))
783 cc1plus_spec = sl->spec;
784 else if (! strcmp (name, "cpp"))
786 else if (! strcmp (name, "endfile"))
787 endfile_spec = sl->spec;
788 else if (! strcmp (name, "lib"))
790 else if (! strcmp (name, "link"))
791 link_spec = sl->spec;
792 else if (! strcmp (name, "predefines"))
793 cpp_predefines = sl->spec;
794 else if (! strcmp (name, "signed_char"))
795 signed_char_spec = sl->spec;
796 else if (! strcmp (name, "startfile"))
797 startfile_spec = sl->spec;
798 else if (! strcmp (name, "switches_need_spaces"))
799 switches_need_spaces = sl->spec;
800 else if (! strcmp (name, "cross_compile"))
801 cross_compile = atoi (sl->spec);
802 /* Free the old spec */
807 /* Accumulate a command (program name and args), and run it. */
809 /* Vector of pointers to arguments in the current line of specifications. */
811 static char **argbuf;
813 /* Number of elements allocated in argbuf. */
815 static int argbuf_length;
817 /* Number of elements in argbuf currently in use (containing args). */
819 static int argbuf_index;
821 /* Number of commands executed so far. */
823 static int execution_count;
825 /* Name with which this program was invoked. */
827 static char *programname;
829 /* Structures to keep track of prefixes to try when looking for files. */
833 char *prefix; /* String to prepend to the path. */
834 struct prefix_list *next; /* Next in linked list. */
835 int require_machine_suffix; /* Don't use without machine_suffix. */
836 /* 2 means try both machine_suffix and just_machine_suffix. */
837 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
842 struct prefix_list *plist; /* List of prefixes to try */
843 int max_len; /* Max length of a prefix in PLIST */
844 char *name; /* Name of this list (used in config stuff) */
847 /* List of prefixes to try when looking for executables. */
849 static struct path_prefix exec_prefix = { 0, 0, "exec" };
851 /* List of prefixes to try when looking for startup (crt0) files. */
853 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
855 /* List of prefixes to try when looking for libraries. */
857 static struct path_prefix library_prefix = { 0, 0, "libraryfile" };
859 /* Suffix to attach to directories searched for commands.
860 This looks like `MACHINE/VERSION/'. */
862 static char *machine_suffix = 0;
864 /* Suffix to attach to directories searched for commands.
865 This is just `MACHINE/'. */
867 static char *just_machine_suffix = 0;
869 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
871 static char *gcc_exec_prefix;
873 /* Default prefixes to attach to command names. */
875 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
876 #undef MD_EXEC_PREFIX
877 #undef MD_STARTFILE_PREFIX
878 #undef MD_STARTFILE_PREFIX_1
881 #ifndef STANDARD_EXEC_PREFIX
882 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
883 #endif /* !defined STANDARD_EXEC_PREFIX */
885 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
886 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
887 #ifdef MD_EXEC_PREFIX
888 static char *md_exec_prefix = MD_EXEC_PREFIX;
891 #ifndef STANDARD_STARTFILE_PREFIX
892 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
893 #endif /* !defined STANDARD_STARTFILE_PREFIX */
895 #ifdef MD_STARTFILE_PREFIX
896 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
898 #ifdef MD_STARTFILE_PREFIX_1
899 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
901 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
902 static char *standard_startfile_prefix_1 = "/lib/";
903 static char *standard_startfile_prefix_2 = "/usr/lib/";
905 /* Clear out the vector of arguments (after a command is executed). */
913 /* Add one argument to the vector at the end.
914 This is done when a space is seen or at the end of the line.
915 If DELETE_ALWAYS is nonzero, the arg is a filename
916 and the file should be deleted eventually.
917 If DELETE_FAILURE is nonzero, the arg is a filename
918 and the file should be deleted if this compilation fails. */
921 store_arg (arg, delete_always, delete_failure)
923 int delete_always, delete_failure;
925 if (argbuf_index + 1 == argbuf_length)
927 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
930 argbuf[argbuf_index++] = arg;
931 argbuf[argbuf_index] = 0;
933 if (delete_always || delete_failure)
934 record_temp_file (arg, delete_always, delete_failure);
937 /* Record the names of temporary files we tell compilers to write,
938 and delete them at the end of the run. */
940 /* This is the common prefix we use to make temp file names.
941 It is chosen once for each run of this program.
942 It is substituted into a spec by %g.
943 Thus, all temp file names contain this prefix.
944 In practice, all temp file names start with this prefix.
946 This prefix comes from the envvar TMPDIR if it is defined;
947 otherwise, from the P_tmpdir macro if that is defined;
948 otherwise, in /usr/tmp or /tmp. */
950 static char *temp_filename;
952 /* Length of the prefix. */
954 static int temp_filename_length;
956 /* Define the list of temporary files to delete. */
961 struct temp_file *next;
964 /* Queue of files to delete on success or failure of compilation. */
965 static struct temp_file *always_delete_queue;
966 /* Queue of files to delete on failure of compilation. */
967 static struct temp_file *failure_delete_queue;
969 /* Record FILENAME as a file to be deleted automatically.
970 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
971 otherwise delete it in any case.
972 FAIL_DELETE nonzero means delete it if a compilation step fails;
973 otherwise delete it in any case. */
976 record_temp_file (filename, always_delete, fail_delete)
982 name = xmalloc (strlen (filename) + 1);
983 strcpy (name, filename);
987 register struct temp_file *temp;
988 for (temp = always_delete_queue; temp; temp = temp->next)
989 if (! strcmp (name, temp->name))
991 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
992 temp->next = always_delete_queue;
994 always_delete_queue = temp;
1000 register struct temp_file *temp;
1001 for (temp = failure_delete_queue; temp; temp = temp->next)
1002 if (! strcmp (name, temp->name))
1004 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1005 temp->next = failure_delete_queue;
1007 failure_delete_queue = temp;
1012 /* Delete all the temporary files whose names we previously recorded. */
1015 delete_temp_files ()
1017 register struct temp_file *temp;
1019 for (temp = always_delete_queue; temp; temp = temp->next)
1023 printf ("Delete %s? (y or n) ", temp->name);
1027 while (getchar () != '\n') ;
1028 if (i == 'y' || i == 'Y')
1032 if (stat (temp->name, &st) >= 0)
1034 /* Delete only ordinary files. */
1035 if (S_ISREG (st.st_mode))
1036 if (unlink (temp->name) < 0)
1038 perror_with_name (temp->name);
1043 always_delete_queue = 0;
1046 /* Delete all the files to be deleted on error. */
1049 delete_failure_queue ()
1051 register struct temp_file *temp;
1053 for (temp = failure_delete_queue; temp; temp = temp->next)
1057 printf ("Delete %s? (y or n) ", temp->name);
1061 while (getchar () != '\n') ;
1062 if (i == 'y' || i == 'Y')
1065 if (unlink (temp->name) < 0)
1067 perror_with_name (temp->name);
1073 clear_failure_queue ()
1075 failure_delete_queue = 0;
1078 /* Compute a string to use as the base of all temporary file names.
1079 It is substituted for %g. */
1084 char *base = getenv ("TMPDIR");
1087 if (base == (char *)0)
1090 if (access (P_tmpdir, R_OK | W_OK) == 0)
1093 if (base == (char *)0)
1095 if (access ("/usr/tmp", R_OK | W_OK) == 0)
1102 len = strlen (base);
1103 temp_filename = xmalloc (len + sizeof("/ccXXXXXX"));
1104 strcpy (temp_filename, base);
1105 if (len > 0 && temp_filename[len-1] != '/')
1106 temp_filename[len++] = '/';
1107 strcpy (temp_filename + len, "ccXXXXXX");
1109 mktemp (temp_filename);
1110 temp_filename_length = strlen (temp_filename);
1114 /* Routine to add variables to the environment. We do this to pass
1115 the pathname of the gcc driver, and the directories search to the
1116 collect2 program, which is being run as ld. This way, we can be
1117 sure of executing the right compiler when collect2 wants to build
1118 constructors and destructors. Since the environment variables we
1119 use come from an obstack, we don't have to worry about allocating
1127 #ifndef VMS /* nor about VMS */
1129 extern char **environ;
1130 char **old_environ = environ;
1134 int str_len = strlen (str);
1138 while ((ch = *p++) != '\0' && ch != '=')
1144 /* Search for replacing an existing environment variable, and
1145 count the number of total environment variables. */
1146 for (envp = old_environ; *envp; envp++)
1149 if (!strncmp (str, *envp, name_len))
1156 /* Add a new environment variable */
1157 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1159 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1164 #endif /* HAVE_PUTENV */
1167 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1170 putenv_from_prefixes (paths, env_var)
1171 struct path_prefix *paths;
1174 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1175 int first_time = TRUE;
1176 struct prefix_list *pprefix;
1178 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1180 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1182 int len = strlen (pprefix->prefix);
1187 obstack_grow (&collect_obstack, ":", 1);
1190 obstack_grow (&collect_obstack, pprefix->prefix, len);
1191 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1194 if (just_machine_suffix && pprefix->require_machine_suffix == 2)
1197 obstack_grow (&collect_obstack, ":", 1);
1200 obstack_grow (&collect_obstack, pprefix->prefix, len);
1201 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1204 if (!pprefix->require_machine_suffix)
1207 obstack_grow (&collect_obstack, ":", 1);
1210 obstack_grow (&collect_obstack, pprefix->prefix, len);
1213 obstack_grow (&collect_obstack, "\0", 1);
1214 putenv (obstack_finish (&collect_obstack));
1218 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1219 access to check permissions.
1220 Return 0 if not found, otherwise return its name, allocated with malloc. */
1223 find_a_file (pprefix, name, mode)
1224 struct path_prefix *pprefix;
1229 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1230 struct prefix_list *pl;
1231 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1234 len += strlen (machine_suffix);
1236 temp = xmalloc (len);
1238 /* Determine the filename to execute (special case for absolute paths). */
1242 if (access (name, mode))
1244 strcpy (temp, name);
1249 for (pl = pprefix->plist; pl; pl = pl->next)
1253 strcpy (temp, pl->prefix);
1254 strcat (temp, machine_suffix);
1255 strcat (temp, name);
1256 if (access (temp, mode) == 0)
1258 if (pl->used_flag_ptr != 0)
1259 *pl->used_flag_ptr = 1;
1262 /* Some systems have a suffix for executable files.
1263 So try appending that. */
1264 if (file_suffix[0] != 0)
1266 strcat (temp, file_suffix);
1267 if (access (temp, mode) == 0)
1269 if (pl->used_flag_ptr != 0)
1270 *pl->used_flag_ptr = 1;
1275 /* Certain prefixes are tried with just the machine type,
1276 not the version. This is used for finding as, ld, etc. */
1277 if (just_machine_suffix && pl->require_machine_suffix == 2)
1279 strcpy (temp, pl->prefix);
1280 strcat (temp, just_machine_suffix);
1281 strcat (temp, name);
1282 if (access (temp, mode) == 0)
1284 if (pl->used_flag_ptr != 0)
1285 *pl->used_flag_ptr = 1;
1288 /* Some systems have a suffix for executable files.
1289 So try appending that. */
1290 if (file_suffix[0] != 0)
1292 strcat (temp, file_suffix);
1293 if (access (temp, mode) == 0)
1295 if (pl->used_flag_ptr != 0)
1296 *pl->used_flag_ptr = 1;
1301 /* Certain prefixes can't be used without the machine suffix
1302 when the machine or version is explicitly specified. */
1303 if (!pl->require_machine_suffix)
1305 strcpy (temp, pl->prefix);
1306 strcat (temp, name);
1307 if (access (temp, mode) == 0)
1309 if (pl->used_flag_ptr != 0)
1310 *pl->used_flag_ptr = 1;
1313 /* Some systems have a suffix for executable files.
1314 So try appending that. */
1315 if (file_suffix[0] != 0)
1317 strcat (temp, file_suffix);
1318 if (access (temp, mode) == 0)
1320 if (pl->used_flag_ptr != 0)
1321 *pl->used_flag_ptr = 1;
1332 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1333 at the start of the list, otherwise it goes at the end.
1335 If WARN is nonzero, we will warn if no file is found
1336 through this prefix. WARN should point to an int
1337 which will be set to 1 if this entry is used.
1339 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1340 the complete value of machine_suffix.
1341 2 means try both machine_suffix and just_machine_suffix. */
1344 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1345 struct path_prefix *pprefix;
1348 int require_machine_suffix;
1351 struct prefix_list *pl, **prev;
1354 if (!first && pprefix->plist)
1356 for (pl = pprefix->plist; pl->next; pl = pl->next)
1361 prev = &pprefix->plist;
1363 /* Keep track of the longest prefix */
1365 len = strlen (prefix);
1366 if (len > pprefix->max_len)
1367 pprefix->max_len = len;
1369 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1370 pl->prefix = save_string (prefix, len);
1371 pl->require_machine_suffix = require_machine_suffix;
1372 pl->used_flag_ptr = warn;
1379 pl->next = (struct prefix_list *) 0;
1383 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1386 unused_prefix_warnings (pprefix)
1387 struct path_prefix *pprefix;
1389 struct prefix_list *pl = pprefix->plist;
1393 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1395 error ("file path prefix `%s' never used",
1397 /* Prevent duplicate warnings. */
1398 *pl->used_flag_ptr = 1;
1404 /* Get rid of all prefixes built up so far in *PLISTP. */
1407 free_path_prefix (pprefix)
1408 struct path_prefix *pprefix;
1410 struct prefix_list *pl = pprefix->plist;
1411 struct prefix_list *temp;
1417 free (temp->prefix);
1418 free ((char *) temp);
1420 pprefix->plist = (struct prefix_list *) 0;
1423 /* stdin file number. */
1424 #define STDIN_FILE_NO 0
1426 /* stdout file number. */
1427 #define STDOUT_FILE_NO 1
1429 /* value of `pipe': port index for reading. */
1432 /* value of `pipe': port index for writing. */
1433 #define WRITE_PORT 1
1435 /* Pipe waiting from last process, to be used as input for the next one.
1436 Value is STDIN_FILE_NO if no pipe is waiting
1437 (i.e. the next command is the first of a group). */
1439 static int last_pipe_input;
1441 /* Fork one piped subcommand. FUNC is the system call to use
1442 (either execv or execvp). ARGV is the arg vector to use.
1443 NOT_LAST is nonzero if this is not the last subcommand
1444 (i.e. its output should be piped to the next one.) */
1449 /* Declare these to avoid compilation error. They won't be called. */
1450 int execv(const char *a, const char **b){}
1451 int execvp(const char *a, const char **b){}
1454 pexecute (search_flag, program, argv, not_last)
1464 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6);
1465 sprintf (scmd, "%s @%s.gp", program, temp_filename);
1466 argfile = fopen (scmd+strlen (program) + 2, "w");
1468 pfatal_with_name (scmd + strlen (program) + 2);
1470 for (i=1; argv[i]; i++)
1473 for (cp = argv[i]; *cp; cp++)
1475 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1476 fputc ('\\', argfile);
1477 fputc (*cp, argfile);
1479 fputc ('\n', argfile);
1485 remove (scmd + strlen (program) + 2);
1489 #else /* not __MSDOS__ */
1492 pexecute (search_flag, program, argv, not_last)
1498 int (*func)() = (search_flag ? execv : execvp);
1501 int input_desc = last_pipe_input;
1502 int output_desc = STDOUT_FILE_NO;
1503 int retries, sleep_interval;
1505 /* If this isn't the last process, make a pipe for its output,
1506 and record it as waiting to be the input to the next process. */
1510 if (pipe (pdes) < 0)
1511 pfatal_with_name ("pipe");
1512 output_desc = pdes[WRITE_PORT];
1513 last_pipe_input = pdes[READ_PORT];
1516 last_pipe_input = STDIN_FILE_NO;
1518 /* Fork a subprocess; wait and retry if it fails. */
1520 for (retries = 0; retries < 4; retries++)
1525 sleep (sleep_interval);
1526 sleep_interval *= 2;
1533 pfatal_with_name ("fork");
1535 pfatal_with_name ("vfork");
1541 /* Move the input and output pipes into place, if nec. */
1542 if (input_desc != STDIN_FILE_NO)
1544 close (STDIN_FILE_NO);
1548 if (output_desc != STDOUT_FILE_NO)
1550 close (STDOUT_FILE_NO);
1552 close (output_desc);
1555 /* Close the parent's descs that aren't wanted here. */
1556 if (last_pipe_input != STDIN_FILE_NO)
1557 close (last_pipe_input);
1559 /* Exec the program. */
1560 (*func) (program, argv);
1561 perror_exec (program);
1567 /* In the parent, after forking.
1568 Close the descriptors that we made for this child. */
1569 if (input_desc != STDIN_FILE_NO)
1571 if (output_desc != STDOUT_FILE_NO)
1572 close (output_desc);
1574 /* Return child's process number. */
1579 #endif /* not __MSDOS__ */
1583 pexecute (search_flag, program, argv, not_last)
1589 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1591 #endif /* not OS2 */
1593 /* Execute the command specified by the arguments on the current line of spec.
1594 When using pipes, this includes several piped-together commands
1595 with `|' between them.
1597 Return 0 if successful, -1 if failed. */
1603 int n_commands; /* # of command. */
1607 char *prog; /* program name. */
1608 char **argv; /* vector of args. */
1609 int pid; /* pid of process for this command. */
1612 struct command *commands; /* each command buffer with above info. */
1614 /* Count # of piped commands. */
1615 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1616 if (strcmp (argbuf[i], "|") == 0)
1619 /* Get storage for each command. */
1621 = (struct command *) alloca (n_commands * sizeof (struct command));
1623 /* Split argbuf into its separate piped processes,
1624 and record info about each one.
1625 Also search for the programs that are to be run. */
1627 commands[0].prog = argbuf[0]; /* first command. */
1628 commands[0].argv = &argbuf[0];
1629 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
1631 commands[0].argv[0] = string;
1633 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1634 if (strcmp (argbuf[i], "|") == 0)
1635 { /* each command. */
1637 fatal ("-pipe not supported under MS-DOS");
1639 argbuf[i] = 0; /* termination of command args. */
1640 commands[n_commands].prog = argbuf[i + 1];
1641 commands[n_commands].argv = &argbuf[i + 1];
1642 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
1644 commands[n_commands].argv[0] = string;
1648 argbuf[argbuf_index] = 0;
1650 /* If -v, print what we are about to do, and maybe query. */
1654 /* Print each piped command as a separate line. */
1655 for (i = 0; i < n_commands ; i++)
1659 for (j = commands[i].argv; *j; j++)
1660 fprintf (stderr, " %s", *j);
1662 /* Print a pipe symbol after all but the last command. */
1663 if (i + 1 != n_commands)
1664 fprintf (stderr, " |");
1665 fprintf (stderr, "\n");
1669 fprintf (stderr, "\nGo ahead? (y or n) ");
1673 while (getchar () != '\n') ;
1674 if (i != 'y' && i != 'Y')
1679 /* Run each piped subprocess. */
1681 last_pipe_input = STDIN_FILE_NO;
1682 for (i = 0; i < n_commands; i++)
1684 char *string = commands[i].argv[0];
1686 commands[i].pid = pexecute (string != commands[i].prog,
1687 string, commands[i].argv,
1688 i + 1 < n_commands);
1690 if (string != commands[i].prog)
1696 /* Wait for all the subprocesses to finish.
1697 We don't care what order they finish in;
1698 we know that N_COMMANDS waits will get them all. */
1703 for (i = 0; i < n_commands; i++)
1710 status = pid = commands[i].pid;
1712 pid = wait (&status);
1720 for (j = 0; j < n_commands; j++)
1721 if (commands[j].pid == pid)
1722 prog = commands[j].prog;
1724 if ((status & 0x7F) != 0)
1725 fatal ("Internal compiler error: program %s got fatal signal %d",
1726 prog, (status & 0x7F));
1727 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
1735 /* Find all the switches given to us
1736 and make a vector describing them.
1737 The elements of the vector are strings, one per switch given.
1738 If a switch uses following arguments, then the `part1' field
1739 is the switch itself and the `args' field
1740 is a null-terminated vector containing the following arguments.
1741 The `valid' field is nonzero if any spec has looked at this switch;
1742 if it remains zero at the end of the run, it must be meaningless. */
1751 static struct switchstr *switches;
1753 static int n_switches;
1761 /* Also a vector of input files specified. */
1763 static struct infile *infiles;
1765 static int n_infiles;
1767 /* And a vector of corresponding output files is made up later. */
1769 static char **outfiles;
1771 /* Create the vector `switches' and its contents.
1772 Store its length in `n_switches'. */
1775 process_command (argc, argv)
1781 char *spec_lang = 0;
1782 int last_language_n_infiles;
1784 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
1788 spec_version = version_string;
1790 /* Set up the default search paths. */
1792 if (gcc_exec_prefix)
1794 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1795 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1798 /* COMPILER_PATH and LIBRARY_PATH have values
1799 that are lists of directory names with colons. */
1801 temp = getenv ("COMPILER_PATH");
1804 char *startp, *endp;
1805 char *nstore = (char *) alloca (strlen (temp) + 3);
1807 startp = endp = temp;
1810 if (*endp == PATH_SEPARATOR || *endp == 0)
1812 strncpy (nstore, startp, endp-startp);
1815 strcpy (nstore, "./");
1817 else if (endp[-1] != '/')
1819 nstore[endp-startp] = '/';
1820 nstore[endp-startp+1] = 0;
1823 nstore[endp-startp] = 0;
1824 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
1827 endp = startp = endp + 1;
1834 temp = getenv ("LIBRARY_PATH");
1837 char *startp, *endp;
1838 char *nstore = (char *) alloca (strlen (temp) + 3);
1840 startp = endp = temp;
1843 if (*endp == PATH_SEPARATOR || *endp == 0)
1845 strncpy (nstore, startp, endp-startp);
1848 strcpy (nstore, "./");
1850 else if (endp[-1] != '/')
1852 nstore[endp-startp] = '/';
1853 nstore[endp-startp+1] = 0;
1856 nstore[endp-startp] = 0;
1857 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1858 /* Make separate list of dirs that came from LIBRARY_PATH. */
1859 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1862 endp = startp = endp + 1;
1869 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
1870 temp = getenv ("LPATH");
1873 char *startp, *endp;
1874 char *nstore = (char *) alloca (strlen (temp) + 3);
1876 startp = endp = temp;
1879 if (*endp == PATH_SEPARATOR || *endp == 0)
1881 strncpy (nstore, startp, endp-startp);
1884 strcpy (nstore, "./");
1886 else if (endp[-1] != '/')
1888 nstore[endp-startp] = '/';
1889 nstore[endp-startp+1] = 0;
1892 nstore[endp-startp] = 0;
1893 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1894 /* Make separate list of dirs that came from LIBRARY_PATH. */
1895 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1898 endp = startp = endp + 1;
1905 /* Scan argv twice. Here, the first time, just count how many switches
1906 there will be in their vector, and how many input files in theirs.
1907 Here we also parse the switches that cc itself uses (e.g. -v). */
1909 for (i = 1; i < argc; i++)
1911 if (! strcmp (argv[i], "-dumpspecs"))
1913 printf ("*asm:\n%s\n\n", asm_spec);
1914 printf ("*asm_final:\n%s\n\n", asm_final_spec);
1915 printf ("*cpp:\n%s\n\n", cpp_spec);
1916 printf ("*cc1:\n%s\n\n", cc1_spec);
1917 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
1918 printf ("*endfile:\n%s\n\n", endfile_spec);
1919 printf ("*link:\n%s\n\n", link_spec);
1920 printf ("*lib:\n%s\n\n", lib_spec);
1921 printf ("*startfile:\n%s\n\n", startfile_spec);
1922 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
1923 printf ("*signed_char:\n%s\n\n", signed_char_spec);
1924 printf ("*predefines:\n%s\n\n", cpp_predefines);
1925 printf ("*cross_compile:\n%d\n\n", cross_compile);
1929 else if (! strcmp (argv[i], "-dumpversion"))
1931 printf ("%s\n", version_string);
1934 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
1936 print_libgcc_file_name = 1;
1938 else if (! strcmp (argv[i], "-Xlinker"))
1940 /* Pass the argument of this option to the linker when we link. */
1943 fatal ("argument to `-Xlinker' is missing");
1946 if (!linker_options)
1948 = (char **) xmalloc (n_linker_options * sizeof (char **));
1951 = (char **) xrealloc (linker_options,
1952 n_linker_options * sizeof (char **));
1954 linker_options[n_linker_options - 1] = argv[++i];
1956 else if (! strncmp (argv[i], "-Wl,", 4))
1959 /* Pass the rest of this option to the linker when we link. */
1962 if (!linker_options)
1964 = (char **) xmalloc (n_linker_options * sizeof (char **));
1967 = (char **) xrealloc (linker_options,
1968 n_linker_options * sizeof (char **));
1970 /* Split the argument at commas. */
1972 for (j = 4; argv[i][j]; j++)
1973 if (argv[i][j] == ',')
1975 linker_options[n_linker_options - 1]
1976 = save_string (argv[i] + prev, j - prev);
1979 = (char **) xrealloc (linker_options,
1980 n_linker_options * sizeof (char **));
1983 /* Record the part after the last comma. */
1984 linker_options[n_linker_options - 1] = argv[i] + prev;
1986 else if (! strncmp (argv[i], "-Wa,", 4))
1989 /* Pass the rest of this option to the assembler. */
1991 n_assembler_options++;
1992 if (!assembler_options)
1994 = (char **) xmalloc (n_assembler_options * sizeof (char **));
1997 = (char **) xrealloc (assembler_options,
1998 n_assembler_options * sizeof (char **));
2000 /* Split the argument at commas. */
2002 for (j = 4; argv[i][j]; j++)
2003 if (argv[i][j] == ',')
2005 assembler_options[n_assembler_options - 1]
2006 = save_string (argv[i] + prev, j - prev);
2007 n_assembler_options++;
2009 = (char **) xrealloc (assembler_options,
2010 n_assembler_options * sizeof (char **));
2013 /* Record the part after the last comma. */
2014 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2016 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2018 register char *p = &argv[i][1];
2019 register int c = *p;
2024 if (p[1] == 0 && i + 1 == argc)
2025 fatal ("argument to `-b' is missing");
2027 spec_machine = argv[++i];
2029 spec_machine = p + 1;
2034 int *temp = (int *) xmalloc (sizeof (int));
2036 if (p[1] == 0 && i + 1 == argc)
2037 fatal ("argument to `-B' is missing");
2042 add_prefix (&exec_prefix, value, 1, 0, temp);
2043 add_prefix (&startfile_prefix, value, 1, 0, temp);
2047 case 'v': /* Print our subcommands and print versions. */
2053 if (p[1] == 0 && i + 1 == argc)
2054 fatal ("argument to `-V' is missing");
2056 spec_version = argv[++i];
2058 spec_version = p + 1;
2062 if (!strcmp (p, "save-temps"))
2064 save_temps_flag = 1;
2071 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2072 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2073 else if (WORD_SWITCH_TAKES_ARG (p))
2074 i += WORD_SWITCH_TAKES_ARG (p);
2081 /* Set up the search paths before we go looking for config files. */
2083 /* These come before the md prefixes so that we will find gcc's subcommands
2084 (such as cpp) rather than those of the host system. */
2085 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2086 as well as trying the machine and the version. */
2087 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2088 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2090 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2091 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2093 /* More prefixes are enabled in main, after we read the specs file
2094 and determine whether this is cross-compilation or not. */
2097 /* Then create the space for the vectors and scan again. */
2099 switches = ((struct switchstr *)
2100 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2101 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2104 last_language_n_infiles = -1;
2106 /* This, time, copy the text of each switch and store a pointer
2107 to the copy in the vector of switches.
2108 Store all the infiles in their vector. */
2110 for (i = 1; i < argc; i++)
2112 /* Just skip the switches that were handled by the preceding loop. */
2113 if (!strcmp (argv[i], "-Xlinker"))
2115 else if (! strncmp (argv[i], "-Wl,", 4))
2117 else if (! strncmp (argv[i], "-Wa,", 4))
2119 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2121 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2123 register char *p = &argv[i][1];
2124 register int c = *p;
2126 if (c == 'B' || c == 'b' || c == 'V')
2128 /* Skip a separate arg, if any. */
2135 if (p[1] == 0 && i + 1 == argc)
2136 fatal ("argument to `-x' is missing");
2138 spec_lang = argv[++i];
2141 if (! strcmp (spec_lang, "none"))
2142 /* Suppress the warning if -xnone comes after the last input file,
2143 because alternate command interfaces like g++ might find it
2144 useful to place -xnone after each input file. */
2147 last_language_n_infiles = n_infiles;
2150 switches[n_switches].part1 = p;
2151 /* Deal with option arguments in separate argv elements. */
2152 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2153 || WORD_SWITCH_TAKES_ARG (p)) {
2155 int n_args = WORD_SWITCH_TAKES_ARG (p);
2158 /* Count only the option arguments in separate argv elements. */
2159 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2161 switches[n_switches].args
2162 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2164 switches[n_switches].args[j++] = argv[++i];
2165 /* Null-terminate the vector. */
2166 switches[n_switches].args[j] = 0;
2167 } else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L')) {
2168 /* On some systems, ld cannot handle -o or -L without space.
2169 So split the -o or -L from its argument. */
2170 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2171 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2172 switches[n_switches].args[0] = xmalloc (strlen (p));
2173 strcpy (switches[n_switches].args[0], &p[1]);
2174 switches[n_switches].args[1] = 0;
2176 switches[n_switches].args = 0;
2177 switches[n_switches].valid = 0;
2178 /* This is always valid, since gcc.c itself understands it. */
2179 if (!strcmp (p, "save-temps"))
2180 switches[n_switches].valid = 1;
2185 infiles[n_infiles].language = spec_lang;
2186 infiles[n_infiles++].name = argv[i];
2190 if (n_infiles == last_language_n_infiles)
2191 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2193 switches[n_switches].part1 = 0;
2194 infiles[n_infiles].name = 0;
2196 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2197 if (gcc_exec_prefix)
2199 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2200 + strlen (spec_machine) + 3);
2201 strcpy (temp, gcc_exec_prefix);
2202 strcat (temp, spec_machine);
2204 strcat (temp, spec_version);
2206 gcc_exec_prefix = temp;
2210 /* Process a spec string, accumulating and running commands. */
2212 /* These variables describe the input file name.
2213 input_file_number is the index on outfiles of this file,
2214 so that the output file name can be stored for later use by %o.
2215 input_basename is the start of the part of the input file
2216 sans all directory names, and basename_length is the number
2217 of characters starting there excluding the suffix .c or whatever. */
2219 static char *input_filename;
2220 static int input_file_number;
2221 static int input_filename_length;
2222 static int basename_length;
2223 static char *input_basename;
2224 static char *input_suffix;
2226 /* These are variables used within do_spec and do_spec_1. */
2228 /* Nonzero if an arg has been started and not yet terminated
2229 (with space, tab or newline). */
2230 static int arg_going;
2232 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2233 is a temporary file name. */
2234 static int delete_this_arg;
2236 /* Nonzero means %w has been seen; the next arg to be terminated
2237 is the output file name of this compilation. */
2238 static int this_is_output_file;
2240 /* Nonzero means %s has been seen; the next arg to be terminated
2241 is the name of a library file and we should try the standard
2242 search dirs for it. */
2243 static int this_is_library_file;
2245 /* Process the spec SPEC and run the commands specified therein.
2246 Returns 0 if the spec is successfully processed; -1 if failed. */
2256 delete_this_arg = 0;
2257 this_is_output_file = 0;
2258 this_is_library_file = 0;
2260 value = do_spec_1 (spec, 0, NULL_PTR);
2262 /* Force out any unfinished command.
2263 If -pipe, this forces out the last command if it ended in `|'. */
2266 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2269 if (argbuf_index > 0)
2276 /* Process the sub-spec SPEC as a portion of a larger spec.
2277 This is like processing a whole spec except that we do
2278 not initialize at the beginning and we do not supply a
2279 newline by default at the end.
2280 INSWITCH nonzero means don't process %-sequences in SPEC;
2281 in this case, % is treated as an ordinary character.
2282 This is used while substituting switches.
2283 INSWITCH nonzero also causes SPC not to terminate an argument.
2285 Value is zero unless a line was finished
2286 and the command on that line reported an error. */
2289 do_spec_1 (spec, inswitch, soft_matched_part)
2292 char *soft_matched_part;
2294 register char *p = spec;
2300 /* If substituting a switch, treat all chars like letters.
2301 Otherwise, NL, SPC, TAB and % are special. */
2302 switch (inswitch ? 'a' : c)
2305 /* End of line: finish any pending argument,
2306 then run the pending command if one has been started. */
2309 obstack_1grow (&obstack, 0);
2310 string = obstack_finish (&obstack);
2311 if (this_is_library_file)
2312 string = find_file (string);
2313 store_arg (string, delete_this_arg, this_is_output_file);
2314 if (this_is_output_file)
2315 outfiles[input_file_number] = string;
2319 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2322 for (i = 0; i < n_switches; i++)
2323 if (!strcmp (switches[i].part1, "pipe"))
2326 /* A `|' before the newline means use a pipe here,
2327 but only if -pipe was specified.
2328 Otherwise, execute now and don't pass the `|' as an arg. */
2331 switches[i].valid = 1;
2338 if (argbuf_index > 0)
2340 int value = execute ();
2344 /* Reinitialize for a new command, and for a new argument. */
2347 delete_this_arg = 0;
2348 this_is_output_file = 0;
2349 this_is_library_file = 0;
2353 /* End any pending argument. */
2356 obstack_1grow (&obstack, 0);
2357 string = obstack_finish (&obstack);
2358 if (this_is_library_file)
2359 string = find_file (string);
2360 store_arg (string, delete_this_arg, this_is_output_file);
2361 if (this_is_output_file)
2362 outfiles[input_file_number] = string;
2366 obstack_1grow (&obstack, c);
2372 /* Space or tab ends an argument if one is pending. */
2375 obstack_1grow (&obstack, 0);
2376 string = obstack_finish (&obstack);
2377 if (this_is_library_file)
2378 string = find_file (string);
2379 store_arg (string, delete_this_arg, this_is_output_file);
2380 if (this_is_output_file)
2381 outfiles[input_file_number] = string;
2383 /* Reinitialize for a new argument. */
2385 delete_this_arg = 0;
2386 this_is_output_file = 0;
2387 this_is_library_file = 0;
2394 fatal ("Invalid specification! Bug in cc.");
2397 obstack_grow (&obstack, input_basename, basename_length);
2402 delete_this_arg = 2;
2405 /* Dump out the directories specified with LIBRARY_PATH,
2406 followed by the absolute directories
2407 that we search for startfiles. */
2409 for (i = 0; i < 2; i++)
2411 struct prefix_list *pl
2412 = (i == 0 ? library_prefix.plist : startfile_prefix.plist);
2414 char *buffer = (char *) xmalloc (bufsize);
2417 for (; pl; pl = pl->next)
2419 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2420 /* Used on systems which record the specified -L dirs
2421 and use them to search for dynamic linking. */
2422 /* Relative directories always come from -B,
2423 and it is better not to use them for searching
2424 at run time. In particular, stage1 loses */
2425 if (pl->prefix[0] != '/')
2430 if (is_linker_dir (pl->prefix, machine_suffix))
2432 do_spec_1 ("-L", 0, NULL_PTR);
2433 #ifdef SPACE_AFTER_L_OPTION
2434 do_spec_1 (" ", 0, NULL_PTR);
2436 do_spec_1 (pl->prefix, 1, NULL_PTR);
2437 /* Remove slash from machine_suffix. */
2438 if (strlen (machine_suffix) >= bufsize)
2439 bufsize = strlen (machine_suffix) * 2 + 1;
2440 buffer = (char *) xrealloc (buffer, bufsize);
2441 strcpy (buffer, machine_suffix);
2442 idx = strlen (buffer);
2443 if (buffer[idx - 1] == '/')
2444 buffer[idx - 1] = 0;
2445 do_spec_1 (buffer, 1, NULL_PTR);
2446 /* Make this a separate argument. */
2447 do_spec_1 (" ", 0, NULL_PTR);
2450 if (!pl->require_machine_suffix)
2452 if (is_linker_dir (pl->prefix, ""))
2454 do_spec_1 ("-L", 0, NULL_PTR);
2455 #ifdef SPACE_AFTER_L_OPTION
2456 do_spec_1 (" ", 0, NULL_PTR);
2458 /* Remove slash from pl->prefix. */
2459 if (strlen (pl->prefix) >= bufsize)
2460 bufsize = strlen (pl->prefix) * 2 + 1;
2461 buffer = (char *) xrealloc (buffer, bufsize);
2462 strcpy (buffer, pl->prefix);
2463 idx = strlen (buffer);
2464 if (buffer[idx - 1] == '/')
2465 buffer[idx - 1] = 0;
2466 do_spec_1 (buffer, 1, NULL_PTR);
2467 /* Make this a separate argument. */
2468 do_spec_1 (" ", 0, NULL_PTR);
2477 /* {...:%efoo} means report an error with `foo' as error message
2478 and don't execute any more commands for this file. */
2482 while (*p != 0 && *p != '\n') p++;
2483 buf = (char *) alloca (p - q + 1);
2484 strncpy (buf, q, p - q);
2493 if (save_temps_flag)
2494 obstack_grow (&obstack, input_basename, basename_length);
2497 obstack_grow (&obstack, temp_filename, temp_filename_length);
2502 sprintf (buff, "%d", ++unique);
2503 obstack_grow (&obstack, buff, strlen (buff));
2505 delete_this_arg = 1;
2511 obstack_grow (&obstack, input_filename, input_filename_length);
2516 if (gcc_exec_prefix)
2518 do_spec_1 ("-iprefix", 1, NULL_PTR);
2519 /* Make this a separate argument. */
2520 do_spec_1 (" ", 0, NULL_PTR);
2521 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
2522 do_spec_1 (" ", 0, NULL_PTR);
2529 for (f = 0; f < n_infiles; f++)
2530 store_arg (outfiles[f], 0, 0);
2535 this_is_library_file = 1;
2539 this_is_output_file = 1;
2544 int index = argbuf_index;
2545 /* Handle the {...} following the %W. */
2548 p = handle_braces (p + 1);
2551 /* If any args were output, mark the last one for deletion
2553 if (argbuf_index != index)
2554 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
2558 /* %x{OPTION} records OPTION for %X to output. */
2564 /* Skip past the option value and make a copy. */
2569 string = save_string (p1 + 1, p - p1 - 2);
2571 /* See if we already recorded this option. */
2572 for (i = 0; i < n_linker_options; i++)
2573 if (! strcmp (string, linker_options[i]))
2579 /* This option is new; add it. */
2581 if (!linker_options)
2583 = (char **) xmalloc (n_linker_options * sizeof (char **));
2586 = (char **) xrealloc (linker_options,
2587 n_linker_options * sizeof (char **));
2589 linker_options[n_linker_options - 1] = string;
2593 /* Dump out the options accumulated previously using %x,
2594 -Xlinker and -Wl,. */
2596 for (i = 0; i < n_linker_options; i++)
2598 do_spec_1 (linker_options[i], 1, NULL_PTR);
2599 /* Make each accumulated option a separate argument. */
2600 do_spec_1 (" ", 0, NULL_PTR);
2604 /* Dump out the options accumulated previously using -Wa,. */
2606 for (i = 0; i < n_assembler_options; i++)
2608 do_spec_1 (assembler_options[i], 1, NULL_PTR);
2609 /* Make each accumulated option a separate argument. */
2610 do_spec_1 (" ", 0, NULL_PTR);
2614 /* Here are digits and numbers that just process
2615 a certain constant string as a spec.
2616 /* Here are digits and numbers that just process
2617 a certain constant string as a spec. */
2620 do_spec_1 (cc1_spec, 0, NULL_PTR);
2624 do_spec_1 (cc1plus_spec, 0, NULL_PTR);
2628 do_spec_1 (asm_spec, 0, NULL_PTR);
2632 do_spec_1 (asm_final_spec, 0, NULL_PTR);
2636 do_spec_1 (signed_char_spec, 0, NULL_PTR);
2640 do_spec_1 (cpp_spec, 0, NULL_PTR);
2644 do_spec_1 (endfile_spec, 0, NULL_PTR);
2648 do_spec_1 (link_spec, 0, NULL_PTR);
2652 do_spec_1 (lib_spec, 0, NULL_PTR);
2657 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
2661 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
2665 if (! strncmp (y, "-D", 2))
2666 /* Copy the whole option. */
2667 while (*y && *y != ' ' && *y != '\t')
2669 else if (*y == ' ' || *y == '\t')
2670 /* Copy whitespace to the result. */
2672 /* Don't copy other options. */
2679 do_spec_1 (buf, 0, NULL_PTR);
2685 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
2689 /* Copy all of CPP_PREDEFINES into BUF,
2690 but put __ after every -D and at the end of each arg. */
2694 if (! strncmp (y, "-D", 2))
2701 if (strncmp (y, "__", 2))
2703 /* Stick __ at front of macro name. */
2706 /* Arrange to stick __ at the end as well. */
2710 /* Copy the macro name. */
2711 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2720 /* Copy the value given, if any. */
2721 while (*y && *y != ' ' && *y != '\t')
2724 else if (*y == ' ' || *y == '\t')
2725 /* Copy whitespace to the result. */
2727 /* Don't copy -A options */
2733 /* Copy all of CPP_PREDEFINES into BUF,
2734 but put __ after every -D. */
2738 if (! strncmp (y, "-D", 2))
2743 if (strncmp (y, "__", 2))
2745 /* Stick __ at front of macro name. */
2750 /* Copy the macro name. */
2751 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2754 /* Copy the value given, if any. */
2755 while (*y && *y != ' ' && *y != '\t')
2758 else if (*y == ' ' || *y == '\t')
2759 /* Copy whitespace to the result. */
2761 /* Don't copy -A options */
2767 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
2771 if (! strncmp (y, "-A", 2))
2772 /* Copy the whole option. */
2773 while (*y && *y != ' ' && *y != '\t')
2775 else if (*y == ' ' || *y == '\t')
2776 /* Copy whitespace to the result. */
2778 /* Don't copy other options. */
2785 do_spec_1 (buf, 0, NULL_PTR);
2790 do_spec_1 (startfile_spec, 0, NULL_PTR);
2793 /* Here we define characters other than letters and digits. */
2796 p = handle_braces (p);
2802 obstack_1grow (&obstack, '%');
2806 do_spec_1 (soft_matched_part, 1, NULL_PTR);
2807 do_spec_1 (" ", 0, NULL_PTR);
2810 /* Process a string found as the value of a spec given by name.
2811 This feature allows individual machine descriptions
2812 to add and use their own specs.
2813 %[...] modifies -D options the way %P does;
2814 %(...) uses the spec unmodified. */
2819 struct spec_list *sl;
2822 /* The string after the S/P is the name of a spec that is to be
2824 while (*p && *p != ')' && *p != ']')
2827 /* See if it's in the list */
2828 for (len = p - name, sl = specs; sl; sl = sl->next)
2829 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
2838 do_spec_1 (name, 0, NULL_PTR);
2841 char *x = (char *) alloca (strlen (name) * 2 + 1);
2845 /* Copy all of NAME into BUF, but put __ after
2846 every -D and at the end of each arg, */
2849 if (! strncmp (y, "-D", 2))
2857 else if (*y == ' ' || *y == 0)
2871 do_spec_1 (buf, 0, NULL_PTR);
2875 /* Discard the closing paren or bracket. */
2887 /* Backslash: treat next character as ordinary. */
2892 /* Ordinary character: put it into the current argument. */
2893 obstack_1grow (&obstack, c);
2897 return 0; /* End of string */
2900 /* Return 0 if we call do_spec_1 and that returns -1. */
2913 /* A `|' after the open-brace means,
2914 if the test fails, output a single minus sign rather than nothing.
2915 This is used in %{|!pipe:...}. */
2919 /* A `!' after the open-brace negates the condition:
2920 succeed if the specified switch is not present. */
2924 /* A `.' after the open-brace means test against the current suffix. */
2934 while (*p != ':' && *p != '}') p++;
2937 register int count = 1;
2955 int found = (input_suffix != 0
2956 && strlen (input_suffix) == p - filter
2957 && strncmp (input_suffix, filter, p - filter) == 0);
2963 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
2968 else if (p[-1] == '*' && p[0] == '}')
2970 /* Substitute all matching switches as separate args. */
2973 for (i = 0; i < n_switches; i++)
2974 if (!strncmp (switches[i].part1, filter, p - filter))
2979 /* Test for presence of the specified switch. */
2983 /* If name specified ends in *, as in {x*:...},
2984 check for %* and handle that case. */
2985 if (p[-1] == '*' && !negate)
2990 /* First see whether we have %*. */
2994 if (*r == '%' && r[1] == '*')
2998 /* If we do, handle that case. */
3001 /* Substitute all matching switches as separate args.
3002 But do this by substituting for %*
3003 in the text that follows the colon. */
3005 unsigned hard_match_len = p - filter - 1;
3006 char *string = save_string (p + 1, q - p - 2);
3008 for (i = 0; i < n_switches; i++)
3009 if (!strncmp (switches[i].part1, filter, hard_match_len))
3011 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3012 /* Pass any arguments this switch has. */
3020 /* If name specified ends in *, as in {x*:...},
3021 check for presence of any switch name starting with x. */
3024 for (i = 0; i < n_switches; i++)
3026 unsigned hard_match_len = p - filter - 1;
3028 if (!strncmp (switches[i].part1, filter, hard_match_len))
3030 switches[i].valid = 1;
3035 /* Otherwise, check for presence of exact name specified. */
3038 for (i = 0; i < n_switches; i++)
3040 if (!strncmp (switches[i].part1, filter, p - filter)
3041 && switches[i].part1[p - filter] == 0)
3043 switches[i].valid = 1;
3050 /* If it is as desired (present for %{s...}, absent for %{-s...})
3051 then substitute either the switch or the specified
3052 conditional text. */
3053 if (present != negate)
3061 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3067 /* Here if a %{|...} conditional fails: output a minus sign,
3068 which means "standard output" or "standard input". */
3069 do_spec_1 ("-", 0, NULL_PTR);
3076 /* Pass a switch to the current accumulating command
3077 in the same form that we received it.
3078 SWITCHNUM identifies the switch; it is an index into
3079 the vector of switches gcc received, which is `switches'.
3080 This cannot fail since it never finishes a command line.
3082 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3085 give_switch (switchnum, omit_first_word)
3087 int omit_first_word;
3089 if (!omit_first_word)
3091 do_spec_1 ("-", 0, NULL_PTR);
3092 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3094 do_spec_1 (" ", 0, NULL_PTR);
3095 if (switches[switchnum].args != 0)
3098 for (p = switches[switchnum].args; *p; p++)
3100 do_spec_1 (*p, 1, NULL_PTR);
3101 do_spec_1 (" ", 0, NULL_PTR);
3104 switches[switchnum].valid = 1;
3107 /* Search for a file named NAME trying various prefixes including the
3108 user's -B prefix and some standard ones.
3109 Return the absolute file name found. If nothing is found, return NAME. */
3117 newname = find_a_file (&startfile_prefix, name, R_OK);
3118 return newname ? newname : name;
3121 /* Determine whether a -L option is relevant. Not required for certain
3122 fixed names and for directories that don't exist. */
3125 is_linker_dir (path1, path2)
3129 int len1 = strlen (path1);
3130 int len2 = strlen (path2);
3131 char *path = (char *) alloca (3 + len1 + len2);
3135 /* Construct the path from the two parts. Ensure the string ends with "/.".
3136 The resulting path will be a directory even if the given path is a
3138 bcopy (path1, path, len1);
3139 bcopy (path2, path + len1, len2);
3140 cp = path + len1 + len2;
3146 /* Exclude directories that the linker is known to search. */
3147 if ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3148 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0))
3151 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3154 /* On fatal signals, delete all the temporary files. */
3157 fatal_error (signum)
3160 signal (signum, SIG_DFL);
3161 delete_failure_queue ();
3162 delete_temp_files ();
3163 /* Get the same signal again, this time not handled,
3164 so its normal effect occurs. */
3165 kill (getpid (), signum);
3175 int error_count = 0;
3176 int linker_was_run = 0;
3177 char *explicit_link_files;
3180 programname = argv[0];
3182 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3183 signal (SIGINT, fatal_error);
3184 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3185 signal (SIGHUP, fatal_error);
3186 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3187 signal (SIGTERM, fatal_error);
3189 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3190 signal (SIGPIPE, fatal_error);
3194 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3196 obstack_init (&obstack);
3198 /* Set up to remember the pathname of gcc and any options
3199 needed for collect. */
3200 obstack_init (&collect_obstack);
3201 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3202 obstack_grow (&collect_obstack, programname, strlen (programname)+1);
3203 putenv (obstack_finish (&collect_obstack));
3205 /* Choose directory for temp files. */
3207 choose_temp_base ();
3209 /* Make a table of what switches there are (switches, n_switches).
3210 Make a table of specified input files (infiles, n_infiles).
3211 Decode switches that are handled locally. */
3213 process_command (argc, argv);
3215 /* Initialize the vector of specs to just the default.
3216 This means one element containing 0s, as a terminator. */
3218 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3219 bcopy (default_compilers, compilers, sizeof default_compilers);
3220 n_compilers = n_default_compilers;
3222 /* Read specs from a file if there is one. */
3224 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3225 just_machine_suffix = concat (spec_machine, "/", "");
3227 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3228 /* Read the specs file unless it is a default one. */
3229 if (specs_file != 0 && strcmp (specs_file, "specs"))
3230 read_specs (specs_file);
3232 /* If not cross-compiling, look for startfiles in the standard places. */
3233 /* The fact that these are done here, after reading the specs file,
3234 means that it cannot be found in these directories.
3235 But that's okay. It should never be there anyway. */
3238 #ifdef MD_EXEC_PREFIX
3239 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3240 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3243 #ifdef MD_STARTFILE_PREFIX
3244 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3247 #ifdef MD_STARTFILE_PREFIX_1
3248 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3251 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3253 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3255 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3257 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3258 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
3262 /* Now we have the specs.
3263 Set the `valid' bits for switches that match anything in any spec. */
3265 validate_all_switches ();
3267 /* Warn about any switches that no pass was interested in. */
3269 for (i = 0; i < n_switches; i++)
3270 if (! switches[i].valid)
3271 error ("unrecognized option `-%s'", switches[i].part1);
3273 if (print_libgcc_file_name)
3275 printf ("%s\n", find_file ("libgcc.a"));
3279 /* Obey some of the options. */
3283 fprintf (stderr, "gcc version %s\n", version_string);
3289 fatal ("No input files specified.");
3291 /* Make a place to record the compiler output file names
3292 that correspond to the input files. */
3294 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
3295 bzero (outfiles, n_infiles * sizeof (char *));
3297 /* Record which files were specified explicitly as link input. */
3299 explicit_link_files = xmalloc (n_infiles);
3300 bzero (explicit_link_files, n_infiles);
3302 for (i = 0; i < n_infiles; i++)
3304 register struct compiler *cp = 0;
3305 int this_file_error = 0;
3307 /* Tell do_spec what to substitute for %i. */
3309 input_filename = infiles[i].name;
3310 input_filename_length = strlen (input_filename);
3311 input_file_number = i;
3313 /* Use the same thing in %o, unless cp->spec says otherwise. */
3315 outfiles[i] = input_filename;
3317 /* Figure out which compiler from the file's suffix. */
3319 cp = lookup_compiler (infiles[i].name, input_filename_length,
3320 infiles[i].language);
3324 /* Ok, we found an applicable compiler. Run its spec. */
3325 /* First say how much of input_filename to substitute for %b */
3328 input_basename = input_filename;
3329 for (p = input_filename; *p; p++)
3331 input_basename = p + 1;
3333 /* Find a suffix starting with the last period,
3334 and set basename_length to exclude that suffix. */
3335 basename_length = strlen (input_basename);
3336 p = input_basename + basename_length;
3337 while (p != input_basename && *p != '.') --p;
3338 if (*p == '.' && p != input_basename)
3340 basename_length = p - input_basename;
3341 input_suffix = p + 1;
3346 value = do_spec (cp->spec);
3348 this_file_error = 1;
3351 /* If this file's name does not contain a recognized suffix,
3352 record it as explicit linker input. */
3355 explicit_link_files[i] = 1;
3357 /* Clear the delete-on-failure queue, deleting the files in it
3358 if this compilation failed. */
3360 if (this_file_error)
3362 delete_failure_queue ();
3365 /* If this compilation succeeded, don't delete those files later. */
3366 clear_failure_queue ();
3369 /* Run ld to link all the compiler output files. */
3371 if (error_count == 0)
3373 int tmp = execution_count;
3377 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
3379 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
3380 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
3382 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3384 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
3385 sizeof ("COLLECT_GCC_OPTIONS=")-1);
3388 for (i = 0; i < n_switches; i++)
3392 obstack_grow (&collect_obstack, " ", 1);
3395 obstack_grow (&collect_obstack, "-", 1);
3396 obstack_grow (&collect_obstack, switches[i].part1,
3397 strlen (switches[i].part1));
3399 for (args = switches[i].args; args && *args; args++)
3401 obstack_grow (&collect_obstack, " ", 1);
3402 obstack_grow (&collect_obstack, *args, strlen (*args));
3405 obstack_grow (&collect_obstack, "\0", 1);
3406 putenv (obstack_finish (&collect_obstack));
3408 value = do_spec (link_command_spec);
3411 linker_was_run = (tmp != execution_count);
3414 /* Warn if a -B option was specified but the prefix was never used. */
3415 unused_prefix_warnings (&exec_prefix);
3416 unused_prefix_warnings (&startfile_prefix);
3418 /* If options said don't run linker,
3419 complain about input files to be given to the linker. */
3421 if (! linker_was_run && error_count == 0)
3422 for (i = 0; i < n_infiles; i++)
3423 if (explicit_link_files[i])
3424 error ("%s: linker input file unused since linking not done",
3427 /* Delete some or all of the temporary files we made. */
3430 delete_failure_queue ();
3431 delete_temp_files ();
3438 /* Find the proper compilation spec for the file name NAME,
3439 whose length is LENGTH. LANGUAGE is the specified language,
3440 or 0 if none specified. */
3442 static struct compiler *
3443 lookup_compiler (name, length, language)
3448 struct compiler *cp;
3450 /* Look for the language, if one is spec'd. */
3453 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3457 if (cp->suffix[0] == '@'
3458 && !strcmp (cp->suffix + 1, language))
3462 error ("language %s not recognized", language);
3465 /* Look for a suffix. */
3466 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3468 if (strlen (cp->suffix) < length
3469 /* See if the suffix matches the end of NAME. */
3470 && !strcmp (cp->suffix,
3471 name + length - strlen (cp->suffix))
3472 /* The suffix `-' matches only the file name `-'. */
3473 && !(!strcmp (cp->suffix, "-") && length != 1))
3475 if (cp->spec[0] == '@')
3477 struct compiler *new;
3478 /* An alias entry maps a suffix to a language.
3479 Search for the language; pass 0 for NAME and LENGTH
3480 to avoid infinite recursion if language not found.
3481 Construct the new compiler spec. */
3482 language = cp->spec + 1;
3483 new = (struct compiler *) xmalloc (sizeof (struct compiler));
3484 new->suffix = cp->suffix;
3485 new->spec = lookup_compiler (NULL_PTR, 0, language)->spec;
3488 /* A non-alias entry: return it. */
3500 register char *value = (char *) malloc (size);
3502 fatal ("virtual memory exhausted");
3507 xrealloc (ptr, size)
3511 register char *value = (char *) realloc (ptr, size);
3513 fatal ("virtual memory exhausted");
3517 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
3523 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
3524 char *result = xmalloc (len1 + len2 + len3 + 1);
3526 strcpy (result, s1);
3527 strcpy (result + len1, s2);
3528 strcpy (result + len1 + len2, s3);
3529 *(result + len1 + len2 + len3) = 0;
3535 save_string (s, len)
3539 register char *result = xmalloc (len + 1);
3541 bcopy (s, result, len);
3547 pfatal_with_name (name)
3552 if (errno < sys_nerr)
3553 s = concat ("%s: ", sys_errlist[errno], "");
3555 s = "cannot open %s";
3560 perror_with_name (name)
3565 if (errno < sys_nerr)
3566 s = concat ("%s: ", sys_errlist[errno], "");
3568 s = "cannot open %s";
3578 if (errno < sys_nerr)
3579 s = concat ("installation problem, cannot exec %s: ",
3580 sys_errlist[errno], "");
3582 s = "installation problem, cannot exec %s";
3586 /* More 'friendly' abort that prints the line and file.
3587 config.h can #define abort fancy_abort if you like that sort of thing. */
3592 fatal ("Internal gcc abort.");
3597 /* Output an error message and exit */
3607 format = va_arg (ap, char *);
3608 fprintf (stderr, "%s: ", programname);
3609 vfprintf (stderr, format, ap);
3611 fprintf (stderr, "\n");
3612 delete_temp_files ();
3624 format = va_arg (ap, char *);
3625 fprintf (stderr, "%s: ", programname);
3626 vfprintf (stderr, format, ap);
3629 fprintf (stderr, "\n");
3632 #else /* not HAVE_VPRINTF */
3635 fatal (msg, arg1, arg2)
3636 char *msg, *arg1, *arg2;
3638 error (msg, arg1, arg2);
3639 delete_temp_files ();
3644 error (msg, arg1, arg2)
3645 char *msg, *arg1, *arg2;
3647 fprintf (stderr, "%s: ", programname);
3648 fprintf (stderr, msg, arg1, arg2);
3649 fprintf (stderr, "\n");
3652 #endif /* not HAVE_VPRINTF */
3656 validate_all_switches ()
3658 struct compiler *comp;
3661 struct spec_list *spec;
3663 for (comp = compilers; comp->spec; comp++)
3667 if (c == '%' && *p == '{')
3668 /* We have a switch spec. */
3669 validate_switches (p + 1);
3672 /* look through the linked list of extra specs read from the specs file */
3673 for (spec = specs ; spec ; spec = spec->next)
3677 if (c == '%' && *p == '{')
3678 /* We have a switch spec. */
3679 validate_switches (p + 1);
3682 p = link_command_spec;
3684 if (c == '%' && *p == '{')
3685 /* We have a switch spec. */
3686 validate_switches (p + 1);
3688 /* Now notice switches mentioned in the machine-specific specs. */
3692 if (c == '%' && *p == '{')
3693 /* We have a switch spec. */
3694 validate_switches (p + 1);
3698 if (c == '%' && *p == '{')
3699 /* We have a switch spec. */
3700 validate_switches (p + 1);
3704 if (c == '%' && *p == '{')
3705 /* We have a switch spec. */
3706 validate_switches (p + 1);
3708 p = signed_char_spec;
3710 if (c == '%' && *p == '{')
3711 /* We have a switch spec. */
3712 validate_switches (p + 1);
3716 if (c == '%' && *p == '{')
3717 /* We have a switch spec. */
3718 validate_switches (p + 1);
3722 if (c == '%' && *p == '{')
3723 /* We have a switch spec. */
3724 validate_switches (p + 1);
3728 if (c == '%' && *p == '{')
3729 /* We have a switch spec. */
3730 validate_switches (p + 1);
3734 if (c == '%' && *p == '{')
3735 /* We have a switch spec. */
3736 validate_switches (p + 1);
3740 if (c == '%' && *p == '{')
3741 /* We have a switch spec. */
3742 validate_switches (p + 1);
3745 /* Look at the switch-name that comes after START
3746 and mark as valid all supplied switches that match it. */
3749 validate_switches (start)
3752 register char *p = start;
3767 while (*p != ':' && *p != '}') p++;
3771 else if (p[-1] == '*')
3773 /* Mark all matching switches as valid. */
3775 for (i = 0; i < n_switches; i++)
3776 if (!strncmp (switches[i].part1, filter, p - filter))
3777 switches[i].valid = 1;
3781 /* Mark an exact matching switch as valid. */
3782 for (i = 0; i < n_switches; i++)
3784 if (!strncmp (switches[i].part1, filter, p - filter)
3785 && switches[i].part1[p - filter] == 0)
3786 switches[i].valid = 1;