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". */
33 #include <sys/types.h>
37 #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 %U returns the last file name generated with %u.
209 %d marks the argument containing or following the %d as a
210 temporary file name, so that that file will be deleted if CC exits
211 successfully. Unlike %g, this contributes no text to the argument.
212 %w marks the argument containing or following the %w as the
213 "output file" of this compilation. This puts the argument
214 into the sequence of arguments that %o will substitute later.
216 like %{...} but mark last argument supplied within
217 as a file to be deleted on failure.
218 %o substitutes the names of all the output files, with spaces
219 automatically placed around them. You should write spaces
220 around the %o as well or the results are undefined.
221 %o is for use in the specs for running the linker.
222 Input files whose names have no recognized suffix are not compiled
223 at all, but they are included among the output files, so they will
225 %p substitutes the standard macro predefinitions for the
226 current target machine. Use this when running cpp.
227 %P like %p, but puts `__' before and after the name of each macro.
228 (Except macros that already have __.)
230 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
231 %s current argument is the name of a library or startup file of some sort.
232 Search for that file in a standard list of directories
233 and substitute the full name found.
234 %eSTR Print STR as an error message. STR is terminated by a newline.
235 Use this when inconsistent options are detected.
236 %x{OPTION} Accumulate an option for %X.
237 %X Output the accumulated linker options specified by compilations.
238 %Y Output the accumulated assembler options specified by compilations.
239 %a process ASM_SPEC as a spec.
240 This allows config.h to specify part of the spec for running as.
241 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
242 used here. This can be used to run a post-processor after the
243 assembler has done it's job.
244 %D Dump out a -L option for each directory in library_prefix,
245 followed by a -L option for each directory in startfile_prefix.
246 %l process LINK_SPEC as a spec.
247 %L process LIB_SPEC as a spec.
248 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
249 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
250 %c process SIGNED_CHAR_SPEC as a spec.
251 %C process CPP_SPEC as a spec. A capital C is actually used here.
252 %1 process CC1_SPEC as a spec.
253 %2 process CC1PLUS_SPEC as a spec.
254 %* substitute the variable part of a matched option. (See below.)
255 Note that each comma in the substituted string is replaced by
257 %{S} substitutes the -S switch, if that switch was given to CC.
258 If that switch was not specified, this substitutes nothing.
259 Here S is a metasyntactic variable.
260 %{S*} substitutes all the switches specified to CC whose names start
261 with -S. This is used for -o, -D, -I, etc; switches that take
262 arguments. CC considers `-o foo' as being one switch whose
263 name starts with `o'. %{o*} would substitute this text,
264 including the space; thus, two arguments would be generated.
265 %{S*:X} substitutes X if one or more switches whose names with -S are
266 specified to CC. Note that the tail part of the -S option
267 (i.e. the part matched by the `*') will be substituted for each
268 occurrence of %* within X.
269 %{S:X} substitutes X, but only if the -S switch was given to CC.
270 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
271 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
272 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
273 %{.S:X} substitutes X, but only if processing a file with suffix S.
274 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
275 %(Spec) processes a specification defined in a specs file as *Spec:
276 %[Spec] as above, but put __ around -D arguments
278 The conditional text X in a %{S:X} or %{!S:X} construct may contain
279 other nested % constructs or spaces, or even newlines. They are
280 processed as usual, as described above.
282 The character | is used to indicate that a command should be piped to
283 the following command, but only if -pipe is specified.
285 Note that it is built into CC which switches take arguments and which
286 do not. You might think it would be useful to generalize this to
287 allow each compiler's spec to say which switches take arguments. But
288 this cannot be done in a consistent fashion. CC cannot even decide
289 which input files have been specified without knowing which switches
290 take arguments, and it must know which input files to compile in order
291 to tell which compilers to run.
293 CC also knows implicitly that arguments starting in `-l' are to be
294 treated as compiler output files, and passed to the linker in their
295 proper position among the other output files. */
297 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
299 /* config.h can define ASM_SPEC to provide extra args to the assembler
300 or extra switch-translations. */
305 /* config.h can define ASM_FINAL_SPEC to run a post processor after
306 the assembler has run. */
307 #ifndef ASM_FINAL_SPEC
308 #define ASM_FINAL_SPEC ""
311 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
312 or extra switch-translations. */
317 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
318 or extra switch-translations. */
323 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
324 or extra switch-translations. */
326 #define CC1PLUS_SPEC ""
329 /* config.h can define LINK_SPEC to provide extra args to the linker
330 or extra switch-translations. */
335 /* config.h can define LIB_SPEC to override the default libraries. */
337 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
340 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
341 #ifndef STARTFILE_SPEC
342 #define STARTFILE_SPEC \
343 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
346 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
347 Make the string nonempty to require spaces there. */
348 #ifndef SWITCHES_NEED_SPACES
349 #define SWITCHES_NEED_SPACES ""
352 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
354 #define ENDFILE_SPEC ""
357 /* This spec is used for telling cpp whether char is signed or not. */
358 #ifndef SIGNED_CHAR_SPEC
359 /* Use #if rather than ?:
360 because MIPS C compiler rejects like ?: in initializers. */
361 #if DEFAULT_SIGNED_CHAR
362 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
364 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
368 static char *cpp_spec = CPP_SPEC;
369 static char *cpp_predefines = CPP_PREDEFINES;
370 static char *cc1_spec = CC1_SPEC;
371 static char *cc1plus_spec = CC1PLUS_SPEC;
372 static char *signed_char_spec = SIGNED_CHAR_SPEC;
373 static char *asm_spec = ASM_SPEC;
374 static char *asm_final_spec = ASM_FINAL_SPEC;
375 static char *link_spec = LINK_SPEC;
376 static char *lib_spec = LIB_SPEC;
377 static char *endfile_spec = ENDFILE_SPEC;
378 static char *startfile_spec = STARTFILE_SPEC;
379 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
381 /* This defines which switch letters take arguments. */
383 #ifndef SWITCH_TAKES_ARG
384 #define SWITCH_TAKES_ARG(CHAR) \
385 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
386 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
387 || (CHAR) == 'I' || (CHAR) == 'm' \
388 || (CHAR) == 'L' || (CHAR) == 'A')
391 /* This defines which multi-letter switches take arguments. */
393 #ifndef WORD_SWITCH_TAKES_ARG
394 #define WORD_SWITCH_TAKES_ARG(STR) \
395 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
396 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
397 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info"))
400 /* Record the mapping from file suffixes for compilation specs. */
404 char *suffix; /* Use this compiler for input files
405 whose names end in this suffix. */
407 char *spec[4]; /* To use this compiler, concatenate these
408 specs and pass to do_spec. */
411 /* Pointer to a vector of `struct compiler' that gives the spec for
412 compiling a file, based on its suffix.
413 A file that does not end in any of these suffixes will be passed
414 unchanged to the loader and nothing else will be done to it.
416 An entry containing two 0s is used to terminate the vector.
418 If multiple entries match a file, the last matching one is used. */
420 static struct compiler *compilers;
422 /* Number of entries in `compilers', not counting the null terminator. */
424 static int n_compilers;
426 /* The default list of file name suffixes and their compilation specs. */
428 static struct compiler default_compilers[] =
432 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
433 %{C:%{!E:%eGNU C does not support -C without using -E}}\
434 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
435 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
436 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
437 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
438 %{traditional-cpp:-traditional}\
439 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
440 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
441 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
442 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
443 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
444 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
446 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
447 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
448 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
449 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
450 %{!pipe:%g.s} %A\n }}}}"},
452 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
453 %{C:%{!E:%eGNU C does not support -C without using -E}}\
454 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
455 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
456 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
457 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
458 %{traditional-cpp:-traditional}\
459 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
461 %{!E:%e-E required when input is from standard input}"},
462 {".m", "@objective-c"},
464 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
465 %{C:%{!E:%eGNU C does not support -C without using -E}}\
466 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
467 -undef -D__OBJC__ -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
468 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
469 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
470 %{traditional-cpp:-traditional}\
471 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
472 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
473 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
474 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
475 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
476 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
477 -lang-objc %{gen-decls} \
479 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
480 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
481 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
482 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
483 %{!pipe:%g.s} %A\n }}}}"},
486 "%{!E:%eCompilation of header file requested} \
487 cpp %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
488 %{C:%{!E:%eGNU C does not support -C without using -E}}\
489 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
490 -undef -D__GNUC__=2 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
491 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
492 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
493 %{traditional-cpp:-traditional}\
494 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
500 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
501 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
502 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
503 -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplus \
504 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
505 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
506 %{traditional-cpp:-traditional} %{trigraphs}\
507 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
508 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
509 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.i} %1 %2\
510 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
511 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
512 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
514 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
515 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
516 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
517 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
518 %{!pipe:%g.s} %A\n }}}}"},
519 {".i", "@cpp-output"},
521 "cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
522 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
523 %{v:-version} %{pg:-p} %{p} %{f*}\
525 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
526 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
527 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
528 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n }"},
529 {".ii", "@c++-cpp-output"},
531 "cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
532 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} %{traditional}\
533 %{v:-version} %{pg:-p} %{p} %{f*} %{+e*}\
535 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
536 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
537 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
538 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
539 %{!pipe:%g.s} %A\n }"},
540 {".s", "@assembler"},
542 "%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
543 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o} %i %A\n }"},
544 {".S", "@assembler-with-cpp"},
545 {"@assembler-with-cpp",
546 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{D*} %{U*} %{I*} %{i*} %{P} %I\
547 %{C:%{!E:%eGNU C does not support -C without using -E}}\
548 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
549 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
550 %c %{O*:-D__OPTIMIZE__} %{traditional} %{ftraditional:-traditional}\
551 %{traditional-cpp:-traditional}\
552 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C\
553 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
554 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
555 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
556 %{!pipe:%g.s} %A\n }}}}"},
557 /* Mark end of table */
561 /* Number of elements in default_compilers, not counting the terminator. */
563 static int n_default_compilers
564 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
566 /* Here is the spec for running the linker, after compiling all files. */
568 #ifdef LINK_LIBGCC_SPECIAL
569 /* Have gcc do the search for libgcc.a. */
570 /* -u* was put back because both BSD and SysV seem to support it. */
571 /* %{static:} simply prevents an error message if the target machine
572 doesn't handle -static. */
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*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}";
579 /* Use -L and have the linker do the search for -lgcc. */
580 static char *link_command_spec = "\
581 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
582 %{r} %{s} %{T*} %{t} %{u*} %{x} %{z}\
583 %{!A:%{!nostdlib:%S}} %{static:}\
584 %{L*} %D %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}";
587 /* A vector of options to give to the linker.
588 These options are accumulated by -Xlinker and -Wl,
589 and substituted into the linker command with %X. */
590 static int n_linker_options;
591 static char **linker_options;
593 /* A vector of options to give to the assembler.
594 These options are accumulated by -Wa,
595 and substituted into the assembler command with %X. */
596 static int n_assembler_options;
597 static char **assembler_options;
599 /* Read compilation specs from a file named FILENAME,
600 replacing the default ones.
602 A suffix which starts with `*' is a definition for
603 one of the machine-specific sub-specs. The "suffix" should be
604 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
605 The corresponding spec is stored in asm_spec, etc.,
606 rather than in the `compilers' vector.
608 Anything invalid in the file is a fatal error. */
611 read_specs (filename)
620 fprintf (stderr, "Reading specs from %s\n", filename);
622 /* Open and stat the file. */
623 desc = open (filename, 0, 0);
625 pfatal_with_name (filename);
626 if (stat (filename, &statbuf) < 0)
627 pfatal_with_name (filename);
629 /* Read contents of file into BUFFER. */
630 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
631 read (desc, buffer, (unsigned) statbuf.st_size);
632 buffer[statbuf.st_size] = 0;
635 /* Scan BUFFER for specs, putting them in the vector. */
641 char *in, *out, *p1, *p2;
643 /* Advance P in BUFFER to the next nonblank nocomment line. */
644 p = skip_whitespace (p);
648 /* Find the colon that should end the suffix. */
650 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
651 /* The colon shouldn't be missing. */
653 fatal ("specs file malformed after %d characters", p1 - buffer);
654 /* Skip back over trailing whitespace. */
656 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
657 /* Copy the suffix to a string. */
658 suffix = save_string (p, p2 - p);
659 /* Find the next line. */
660 p = skip_whitespace (p1 + 1);
662 fatal ("specs file malformed after %d characters", p - buffer);
664 /* Find next blank line. */
665 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
666 /* Specs end at the blank line and do not include the newline. */
667 spec = save_string (p, p1 - p);
670 /* Delete backslash-newline sequences from the spec. */
675 if (in[0] == '\\' && in[1] == '\n')
677 else if (in[0] == '#')
679 while (*in && *in != '\n') in++;
686 if (suffix[0] == '*')
688 if (! strcmp (suffix, "*link_command"))
689 link_command_spec = spec;
691 set_spec (suffix + 1, spec);
695 /* Add this pair to the vector. */
697 = ((struct compiler *)
698 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
699 compilers[n_compilers].suffix = suffix;
700 bzero (compilers[n_compilers].spec,
701 sizeof compilers[n_compilers].spec);
702 compilers[n_compilers].spec[0] = spec;
707 link_command_spec = spec;
710 if (link_command_spec == 0)
711 fatal ("spec file has no spec for linking");
720 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
721 be considered whitespace. */
722 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
724 else if (*p == '\n' || *p == ' ' || *p == '\t')
728 while (*p != '\n') p++;
738 /* Structure to keep track of the specs that have been defined so far. These
739 are accessed using %(specname) or %[specname] in a compiler or link spec. */
743 char *name; /* Name of the spec. */
744 char *spec; /* The spec itself. */
745 struct spec_list *next; /* Next spec in linked list. */
748 /* List of specs that have been defined so far. */
750 static struct spec_list *specs = (struct spec_list *) 0;
752 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
753 removed; If the spec starts with a + then SPEC is added to the end of the
757 set_spec (name, spec)
761 struct spec_list *sl;
764 /* See if the spec already exists */
765 for (sl = specs; sl; sl = sl->next)
766 if (strcmp (sl->name, name) == 0)
771 /* Not found - make it */
772 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
773 sl->name = save_string (name, strlen (name));
774 sl->spec = save_string ("", 0);
780 if (name && spec[0] == '+' && isspace (spec[1]))
781 sl->spec = concat (old_spec, spec + 1, "");
783 sl->spec = save_string (spec, strlen (spec));
785 if (! strcmp (name, "asm"))
787 else if (! strcmp (name, "asm_final"))
788 asm_final_spec = sl->spec;
789 else if (! strcmp (name, "cc1"))
791 else if (! strcmp (name, "cc1plus"))
792 cc1plus_spec = sl->spec;
793 else if (! strcmp (name, "cpp"))
795 else if (! strcmp (name, "endfile"))
796 endfile_spec = sl->spec;
797 else if (! strcmp (name, "lib"))
799 else if (! strcmp (name, "link"))
800 link_spec = sl->spec;
801 else if (! strcmp (name, "predefines"))
802 cpp_predefines = sl->spec;
803 else if (! strcmp (name, "signed_char"))
804 signed_char_spec = sl->spec;
805 else if (! strcmp (name, "startfile"))
806 startfile_spec = sl->spec;
807 else if (! strcmp (name, "switches_need_spaces"))
808 switches_need_spaces = sl->spec;
809 else if (! strcmp (name, "cross_compile"))
810 cross_compile = atoi (sl->spec);
811 /* Free the old spec */
816 /* Accumulate a command (program name and args), and run it. */
818 /* Vector of pointers to arguments in the current line of specifications. */
820 static char **argbuf;
822 /* Number of elements allocated in argbuf. */
824 static int argbuf_length;
826 /* Number of elements in argbuf currently in use (containing args). */
828 static int argbuf_index;
830 /* Number of commands executed so far. */
832 static int execution_count;
834 /* Number of commands that exited with a signal. */
836 static int signal_count;
838 /* Name with which this program was invoked. */
840 static char *programname;
842 /* Structures to keep track of prefixes to try when looking for files. */
846 char *prefix; /* String to prepend to the path. */
847 struct prefix_list *next; /* Next in linked list. */
848 int require_machine_suffix; /* Don't use without machine_suffix. */
849 /* 2 means try both machine_suffix and just_machine_suffix. */
850 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
855 struct prefix_list *plist; /* List of prefixes to try */
856 int max_len; /* Max length of a prefix in PLIST */
857 char *name; /* Name of this list (used in config stuff) */
860 /* List of prefixes to try when looking for executables. */
862 static struct path_prefix exec_prefix = { 0, 0, "exec" };
864 /* List of prefixes to try when looking for startup (crt0) files. */
866 static struct path_prefix startfile_prefix = { 0, 0, "startfile" };
868 /* List of prefixes to try when looking for libraries. */
870 static struct path_prefix library_prefix = { 0, 0, "libraryfile" };
872 /* Suffix to attach to directories searched for commands.
873 This looks like `MACHINE/VERSION/'. */
875 static char *machine_suffix = 0;
877 /* Suffix to attach to directories searched for commands.
878 This is just `MACHINE/'. */
880 static char *just_machine_suffix = 0;
882 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
884 static char *gcc_exec_prefix;
886 /* Default prefixes to attach to command names. */
888 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
889 #undef MD_EXEC_PREFIX
890 #undef MD_STARTFILE_PREFIX
891 #undef MD_STARTFILE_PREFIX_1
894 #ifndef STANDARD_EXEC_PREFIX
895 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
896 #endif /* !defined STANDARD_EXEC_PREFIX */
898 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
899 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
900 #ifdef MD_EXEC_PREFIX
901 static char *md_exec_prefix = MD_EXEC_PREFIX;
904 #ifndef STANDARD_STARTFILE_PREFIX
905 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
906 #endif /* !defined STANDARD_STARTFILE_PREFIX */
908 #ifdef MD_STARTFILE_PREFIX
909 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
911 #ifdef MD_STARTFILE_PREFIX_1
912 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
914 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
915 static char *standard_startfile_prefix_1 = "/lib/";
916 static char *standard_startfile_prefix_2 = "/usr/lib/";
918 /* Clear out the vector of arguments (after a command is executed). */
926 /* Add one argument to the vector at the end.
927 This is done when a space is seen or at the end of the line.
928 If DELETE_ALWAYS is nonzero, the arg is a filename
929 and the file should be deleted eventually.
930 If DELETE_FAILURE is nonzero, the arg is a filename
931 and the file should be deleted if this compilation fails. */
934 store_arg (arg, delete_always, delete_failure)
936 int delete_always, delete_failure;
938 if (argbuf_index + 1 == argbuf_length)
940 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
943 argbuf[argbuf_index++] = arg;
944 argbuf[argbuf_index] = 0;
946 if (delete_always || delete_failure)
947 record_temp_file (arg, delete_always, delete_failure);
950 /* Record the names of temporary files we tell compilers to write,
951 and delete them at the end of the run. */
953 /* This is the common prefix we use to make temp file names.
954 It is chosen once for each run of this program.
955 It is substituted into a spec by %g.
956 Thus, all temp file names contain this prefix.
957 In practice, all temp file names start with this prefix.
959 This prefix comes from the envvar TMPDIR if it is defined;
960 otherwise, from the P_tmpdir macro if that is defined;
961 otherwise, in /usr/tmp or /tmp. */
963 static char *temp_filename;
965 /* Length of the prefix. */
967 static int temp_filename_length;
969 /* Define the list of temporary files to delete. */
974 struct temp_file *next;
977 /* Queue of files to delete on success or failure of compilation. */
978 static struct temp_file *always_delete_queue;
979 /* Queue of files to delete on failure of compilation. */
980 static struct temp_file *failure_delete_queue;
982 /* Record FILENAME as a file to be deleted automatically.
983 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
984 otherwise delete it in any case.
985 FAIL_DELETE nonzero means delete it if a compilation step fails;
986 otherwise delete it in any case. */
989 record_temp_file (filename, always_delete, fail_delete)
995 name = xmalloc (strlen (filename) + 1);
996 strcpy (name, filename);
1000 register struct temp_file *temp;
1001 for (temp = always_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 = always_delete_queue;
1007 always_delete_queue = temp;
1013 register struct temp_file *temp;
1014 for (temp = failure_delete_queue; temp; temp = temp->next)
1015 if (! strcmp (name, temp->name))
1017 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1018 temp->next = failure_delete_queue;
1020 failure_delete_queue = temp;
1025 /* Delete all the temporary files whose names we previously recorded. */
1028 delete_temp_files ()
1030 register struct temp_file *temp;
1032 for (temp = always_delete_queue; temp; temp = temp->next)
1036 printf ("Delete %s? (y or n) ", temp->name);
1040 while (getchar () != '\n') ;
1041 if (i == 'y' || i == 'Y')
1045 if (stat (temp->name, &st) >= 0)
1047 /* Delete only ordinary files. */
1048 if (S_ISREG (st.st_mode))
1049 if (unlink (temp->name) < 0)
1051 perror_with_name (temp->name);
1056 always_delete_queue = 0;
1059 /* Delete all the files to be deleted on error. */
1062 delete_failure_queue ()
1064 register struct temp_file *temp;
1066 for (temp = failure_delete_queue; temp; temp = temp->next)
1070 printf ("Delete %s? (y or n) ", temp->name);
1074 while (getchar () != '\n') ;
1075 if (i == 'y' || i == 'Y')
1078 if (unlink (temp->name) < 0)
1080 perror_with_name (temp->name);
1086 clear_failure_queue ()
1088 failure_delete_queue = 0;
1091 /* Compute a string to use as the base of all temporary file names.
1092 It is substituted for %g. */
1097 char *base = getenv ("TMPDIR");
1100 if (base == (char *)0)
1103 if (access (P_tmpdir, R_OK | W_OK) == 0)
1106 if (base == (char *)0)
1108 if (access ("/usr/tmp", R_OK | W_OK) == 0)
1115 len = strlen (base);
1116 temp_filename = xmalloc (len + sizeof("/ccXXXXXX"));
1117 strcpy (temp_filename, base);
1118 if (len > 0 && temp_filename[len-1] != '/')
1119 temp_filename[len++] = '/';
1120 strcpy (temp_filename + len, "ccXXXXXX");
1122 mktemp (temp_filename);
1123 temp_filename_length = strlen (temp_filename);
1127 /* Routine to add variables to the environment. We do this to pass
1128 the pathname of the gcc driver, and the directories search to the
1129 collect2 program, which is being run as ld. This way, we can be
1130 sure of executing the right compiler when collect2 wants to build
1131 constructors and destructors. Since the environment variables we
1132 use come from an obstack, we don't have to worry about allocating
1140 #ifndef VMS /* nor about VMS */
1142 extern char **environ;
1143 char **old_environ = environ;
1147 int str_len = strlen (str);
1151 while ((ch = *p++) != '\0' && ch != '=')
1157 /* Search for replacing an existing environment variable, and
1158 count the number of total environment variables. */
1159 for (envp = old_environ; *envp; envp++)
1162 if (!strncmp (str, *envp, name_len))
1169 /* Add a new environment variable */
1170 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1172 bcopy (old_environ, environ+1, sizeof (char *) * (num_envs+1));
1177 #endif /* HAVE_PUTENV */
1180 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1183 putenv_from_prefixes (paths, env_var)
1184 struct path_prefix *paths;
1187 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1188 int first_time = TRUE;
1189 struct prefix_list *pprefix;
1191 obstack_grow (&collect_obstack, env_var, strlen (env_var));
1193 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1195 int len = strlen (pprefix->prefix);
1200 obstack_grow (&collect_obstack, ":", 1);
1203 obstack_grow (&collect_obstack, pprefix->prefix, len);
1204 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1207 if (just_machine_suffix && pprefix->require_machine_suffix == 2)
1210 obstack_grow (&collect_obstack, ":", 1);
1213 obstack_grow (&collect_obstack, pprefix->prefix, len);
1214 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1217 if (!pprefix->require_machine_suffix)
1220 obstack_grow (&collect_obstack, ":", 1);
1223 obstack_grow (&collect_obstack, pprefix->prefix, len);
1226 obstack_grow (&collect_obstack, "\0", 1);
1227 putenv (obstack_finish (&collect_obstack));
1231 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1232 access to check permissions.
1233 Return 0 if not found, otherwise return its name, allocated with malloc. */
1236 find_a_file (pprefix, name, mode)
1237 struct path_prefix *pprefix;
1242 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1243 struct prefix_list *pl;
1244 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1247 len += strlen (machine_suffix);
1249 temp = xmalloc (len);
1251 /* Determine the filename to execute (special case for absolute paths). */
1255 if (access (name, mode))
1257 strcpy (temp, name);
1262 for (pl = pprefix->plist; pl; pl = pl->next)
1266 strcpy (temp, pl->prefix);
1267 strcat (temp, machine_suffix);
1268 strcat (temp, name);
1269 if (access (temp, mode) == 0)
1271 if (pl->used_flag_ptr != 0)
1272 *pl->used_flag_ptr = 1;
1275 /* Some systems have a suffix for executable files.
1276 So try appending that. */
1277 if (file_suffix[0] != 0)
1279 strcat (temp, file_suffix);
1280 if (access (temp, mode) == 0)
1282 if (pl->used_flag_ptr != 0)
1283 *pl->used_flag_ptr = 1;
1288 /* Certain prefixes are tried with just the machine type,
1289 not the version. This is used for finding as, ld, etc. */
1290 if (just_machine_suffix && pl->require_machine_suffix == 2)
1292 strcpy (temp, pl->prefix);
1293 strcat (temp, just_machine_suffix);
1294 strcat (temp, name);
1295 if (access (temp, mode) == 0)
1297 if (pl->used_flag_ptr != 0)
1298 *pl->used_flag_ptr = 1;
1301 /* Some systems have a suffix for executable files.
1302 So try appending that. */
1303 if (file_suffix[0] != 0)
1305 strcat (temp, file_suffix);
1306 if (access (temp, mode) == 0)
1308 if (pl->used_flag_ptr != 0)
1309 *pl->used_flag_ptr = 1;
1314 /* Certain prefixes can't be used without the machine suffix
1315 when the machine or version is explicitly specified. */
1316 if (!pl->require_machine_suffix)
1318 strcpy (temp, pl->prefix);
1319 strcat (temp, name);
1320 if (access (temp, mode) == 0)
1322 if (pl->used_flag_ptr != 0)
1323 *pl->used_flag_ptr = 1;
1326 /* Some systems have a suffix for executable files.
1327 So try appending that. */
1328 if (file_suffix[0] != 0)
1330 strcat (temp, file_suffix);
1331 if (access (temp, mode) == 0)
1333 if (pl->used_flag_ptr != 0)
1334 *pl->used_flag_ptr = 1;
1345 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1346 at the start of the list, otherwise it goes at the end.
1348 If WARN is nonzero, we will warn if no file is found
1349 through this prefix. WARN should point to an int
1350 which will be set to 1 if this entry is used.
1352 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1353 the complete value of machine_suffix.
1354 2 means try both machine_suffix and just_machine_suffix. */
1357 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1358 struct path_prefix *pprefix;
1361 int require_machine_suffix;
1364 struct prefix_list *pl, **prev;
1367 if (!first && pprefix->plist)
1369 for (pl = pprefix->plist; pl->next; pl = pl->next)
1374 prev = &pprefix->plist;
1376 /* Keep track of the longest prefix */
1378 len = strlen (prefix);
1379 if (len > pprefix->max_len)
1380 pprefix->max_len = len;
1382 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1383 pl->prefix = save_string (prefix, len);
1384 pl->require_machine_suffix = require_machine_suffix;
1385 pl->used_flag_ptr = warn;
1392 pl->next = (struct prefix_list *) 0;
1396 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1399 unused_prefix_warnings (pprefix)
1400 struct path_prefix *pprefix;
1402 struct prefix_list *pl = pprefix->plist;
1406 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1408 error ("file path prefix `%s' never used",
1410 /* Prevent duplicate warnings. */
1411 *pl->used_flag_ptr = 1;
1417 /* Get rid of all prefixes built up so far in *PLISTP. */
1420 free_path_prefix (pprefix)
1421 struct path_prefix *pprefix;
1423 struct prefix_list *pl = pprefix->plist;
1424 struct prefix_list *temp;
1430 free (temp->prefix);
1431 free ((char *) temp);
1433 pprefix->plist = (struct prefix_list *) 0;
1436 /* stdin file number. */
1437 #define STDIN_FILE_NO 0
1439 /* stdout file number. */
1440 #define STDOUT_FILE_NO 1
1442 /* value of `pipe': port index for reading. */
1445 /* value of `pipe': port index for writing. */
1446 #define WRITE_PORT 1
1448 /* Pipe waiting from last process, to be used as input for the next one.
1449 Value is STDIN_FILE_NO if no pipe is waiting
1450 (i.e. the next command is the first of a group). */
1452 static int last_pipe_input;
1454 /* Fork one piped subcommand. FUNC is the system call to use
1455 (either execv or execvp). ARGV is the arg vector to use.
1456 NOT_LAST is nonzero if this is not the last subcommand
1457 (i.e. its output should be piped to the next one.) */
1462 /* Declare these to avoid compilation error. They won't be called. */
1463 int execv(const char *a, const char **b){}
1464 int execvp(const char *a, const char **b){}
1467 pexecute (search_flag, program, argv, not_last)
1477 scmd = (char *)malloc (strlen (program) + strlen (temp_filename) + 6);
1478 sprintf (scmd, "%s @%s.gp", program, temp_filename);
1479 argfile = fopen (scmd+strlen (program) + 2, "w");
1481 pfatal_with_name (scmd + strlen (program) + 2);
1483 for (i=1; argv[i]; i++)
1486 for (cp = argv[i]; *cp; cp++)
1488 if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
1489 fputc ('\\', argfile);
1490 fputc (*cp, argfile);
1492 fputc ('\n', argfile);
1498 remove (scmd + strlen (program) + 2);
1502 #else /* not __MSDOS__ */
1505 pexecute (search_flag, program, argv, not_last)
1511 int (*func)() = (search_flag ? execv : execvp);
1514 int input_desc = last_pipe_input;
1515 int output_desc = STDOUT_FILE_NO;
1516 int retries, sleep_interval;
1518 /* If this isn't the last process, make a pipe for its output,
1519 and record it as waiting to be the input to the next process. */
1523 if (pipe (pdes) < 0)
1524 pfatal_with_name ("pipe");
1525 output_desc = pdes[WRITE_PORT];
1526 last_pipe_input = pdes[READ_PORT];
1529 last_pipe_input = STDIN_FILE_NO;
1531 /* Fork a subprocess; wait and retry if it fails. */
1533 for (retries = 0; retries < 4; retries++)
1538 sleep (sleep_interval);
1539 sleep_interval *= 2;
1546 pfatal_with_name ("fork");
1548 pfatal_with_name ("vfork");
1554 /* Move the input and output pipes into place, if nec. */
1555 if (input_desc != STDIN_FILE_NO)
1557 close (STDIN_FILE_NO);
1561 if (output_desc != STDOUT_FILE_NO)
1563 close (STDOUT_FILE_NO);
1565 close (output_desc);
1568 /* Close the parent's descs that aren't wanted here. */
1569 if (last_pipe_input != STDIN_FILE_NO)
1570 close (last_pipe_input);
1572 /* Exec the program. */
1573 (*func) (program, argv);
1574 perror_exec (program);
1580 /* In the parent, after forking.
1581 Close the descriptors that we made for this child. */
1582 if (input_desc != STDIN_FILE_NO)
1584 if (output_desc != STDOUT_FILE_NO)
1585 close (output_desc);
1587 /* Return child's process number. */
1592 #endif /* not __MSDOS__ */
1596 pexecute (search_flag, program, argv, not_last)
1602 return (search_flag ? spawnv : spawnvp) (1, program, argv);
1604 #endif /* not OS2 */
1606 /* Execute the command specified by the arguments on the current line of spec.
1607 When using pipes, this includes several piped-together commands
1608 with `|' between them.
1610 Return 0 if successful, -1 if failed. */
1616 int n_commands; /* # of command. */
1620 char *prog; /* program name. */
1621 char **argv; /* vector of args. */
1622 int pid; /* pid of process for this command. */
1625 struct command *commands; /* each command buffer with above info. */
1627 /* Count # of piped commands. */
1628 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1629 if (strcmp (argbuf[i], "|") == 0)
1632 /* Get storage for each command. */
1634 = (struct command *) alloca (n_commands * sizeof (struct command));
1636 /* Split argbuf into its separate piped processes,
1637 and record info about each one.
1638 Also search for the programs that are to be run. */
1640 commands[0].prog = argbuf[0]; /* first command. */
1641 commands[0].argv = &argbuf[0];
1642 string = find_a_file (&exec_prefix, commands[0].prog, X_OK);
1644 commands[0].argv[0] = string;
1646 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1647 if (strcmp (argbuf[i], "|") == 0)
1648 { /* each command. */
1650 fatal ("-pipe not supported under MS-DOS");
1652 argbuf[i] = 0; /* termination of command args. */
1653 commands[n_commands].prog = argbuf[i + 1];
1654 commands[n_commands].argv = &argbuf[i + 1];
1655 string = find_a_file (&exec_prefix, commands[n_commands].prog, X_OK);
1657 commands[n_commands].argv[0] = string;
1661 argbuf[argbuf_index] = 0;
1663 /* If -v, print what we are about to do, and maybe query. */
1667 /* Print each piped command as a separate line. */
1668 for (i = 0; i < n_commands ; i++)
1672 for (j = commands[i].argv; *j; j++)
1673 fprintf (stderr, " %s", *j);
1675 /* Print a pipe symbol after all but the last command. */
1676 if (i + 1 != n_commands)
1677 fprintf (stderr, " |");
1678 fprintf (stderr, "\n");
1682 fprintf (stderr, "\nGo ahead? (y or n) ");
1686 while (getchar () != '\n') ;
1687 if (i != 'y' && i != 'Y')
1692 /* Run each piped subprocess. */
1694 last_pipe_input = STDIN_FILE_NO;
1695 for (i = 0; i < n_commands; i++)
1697 char *string = commands[i].argv[0];
1699 commands[i].pid = pexecute (string != commands[i].prog,
1700 string, commands[i].argv,
1701 i + 1 < n_commands);
1703 if (string != commands[i].prog)
1709 /* Wait for all the subprocesses to finish.
1710 We don't care what order they finish in;
1711 we know that N_COMMANDS waits will get them all. */
1716 for (i = 0; i < n_commands; i++)
1723 status = pid = commands[i].pid;
1725 pid = wait (&status);
1733 for (j = 0; j < n_commands; j++)
1734 if (commands[j].pid == pid)
1735 prog = commands[j].prog;
1737 if ((status & 0x7F) != 0)
1739 fatal ("Internal compiler error: program %s got fatal signal %d",
1740 prog, (status & 0x7F));
1743 if (((status & 0xFF00) >> 8) >= MIN_FATAL_STATUS)
1751 /* Find all the switches given to us
1752 and make a vector describing them.
1753 The elements of the vector are strings, one per switch given.
1754 If a switch uses following arguments, then the `part1' field
1755 is the switch itself and the `args' field
1756 is a null-terminated vector containing the following arguments.
1757 The `valid' field is nonzero if any spec has looked at this switch;
1758 if it remains zero at the end of the run, it must be meaningless. */
1767 static struct switchstr *switches;
1769 static int n_switches;
1777 /* Also a vector of input files specified. */
1779 static struct infile *infiles;
1781 static int n_infiles;
1783 /* And a vector of corresponding output files is made up later. */
1785 static char **outfiles;
1787 /* Create the vector `switches' and its contents.
1788 Store its length in `n_switches'. */
1791 process_command (argc, argv)
1797 char *spec_lang = 0;
1798 int last_language_n_infiles;
1800 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
1804 spec_version = version_string;
1806 /* Set up the default search paths. */
1808 if (gcc_exec_prefix)
1810 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1811 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1814 /* COMPILER_PATH and LIBRARY_PATH have values
1815 that are lists of directory names with colons. */
1817 temp = getenv ("COMPILER_PATH");
1820 char *startp, *endp;
1821 char *nstore = (char *) alloca (strlen (temp) + 3);
1823 startp = endp = temp;
1826 if (*endp == PATH_SEPARATOR || *endp == 0)
1828 strncpy (nstore, startp, endp-startp);
1831 strcpy (nstore, "./");
1833 else if (endp[-1] != '/')
1835 nstore[endp-startp] = '/';
1836 nstore[endp-startp+1] = 0;
1839 nstore[endp-startp] = 0;
1840 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
1843 endp = startp = endp + 1;
1850 temp = getenv ("LIBRARY_PATH");
1853 char *startp, *endp;
1854 char *nstore = (char *) alloca (strlen (temp) + 3);
1856 startp = endp = temp;
1859 if (*endp == PATH_SEPARATOR || *endp == 0)
1861 strncpy (nstore, startp, endp-startp);
1864 strcpy (nstore, "./");
1866 else if (endp[-1] != '/')
1868 nstore[endp-startp] = '/';
1869 nstore[endp-startp+1] = 0;
1872 nstore[endp-startp] = 0;
1873 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1874 /* Make separate list of dirs that came from LIBRARY_PATH. */
1875 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1878 endp = startp = endp + 1;
1885 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
1886 temp = getenv ("LPATH");
1889 char *startp, *endp;
1890 char *nstore = (char *) alloca (strlen (temp) + 3);
1892 startp = endp = temp;
1895 if (*endp == PATH_SEPARATOR || *endp == 0)
1897 strncpy (nstore, startp, endp-startp);
1900 strcpy (nstore, "./");
1902 else if (endp[-1] != '/')
1904 nstore[endp-startp] = '/';
1905 nstore[endp-startp+1] = 0;
1908 nstore[endp-startp] = 0;
1909 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1910 /* Make separate list of dirs that came from LIBRARY_PATH. */
1911 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1914 endp = startp = endp + 1;
1921 /* Scan argv twice. Here, the first time, just count how many switches
1922 there will be in their vector, and how many input files in theirs.
1923 Here we also parse the switches that cc itself uses (e.g. -v). */
1925 for (i = 1; i < argc; i++)
1927 if (! strcmp (argv[i], "-dumpspecs"))
1929 printf ("*asm:\n%s\n\n", asm_spec);
1930 printf ("*asm_final:\n%s\n\n", asm_final_spec);
1931 printf ("*cpp:\n%s\n\n", cpp_spec);
1932 printf ("*cc1:\n%s\n\n", cc1_spec);
1933 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
1934 printf ("*endfile:\n%s\n\n", endfile_spec);
1935 printf ("*link:\n%s\n\n", link_spec);
1936 printf ("*lib:\n%s\n\n", lib_spec);
1937 printf ("*startfile:\n%s\n\n", startfile_spec);
1938 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
1939 printf ("*signed_char:\n%s\n\n", signed_char_spec);
1940 printf ("*predefines:\n%s\n\n", cpp_predefines);
1941 printf ("*cross_compile:\n%d\n\n", cross_compile);
1945 else if (! strcmp (argv[i], "-dumpversion"))
1947 printf ("%s\n", version_string);
1950 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
1952 print_libgcc_file_name = 1;
1954 else if (! strcmp (argv[i], "-Xlinker"))
1956 /* Pass the argument of this option to the linker when we link. */
1959 fatal ("argument to `-Xlinker' is missing");
1962 if (!linker_options)
1964 = (char **) xmalloc (n_linker_options * sizeof (char **));
1967 = (char **) xrealloc (linker_options,
1968 n_linker_options * sizeof (char **));
1970 linker_options[n_linker_options - 1] = argv[++i];
1972 else if (! strncmp (argv[i], "-Wl,", 4))
1975 /* Pass the rest of this option to the linker when we link. */
1978 if (!linker_options)
1980 = (char **) xmalloc (n_linker_options * sizeof (char **));
1983 = (char **) xrealloc (linker_options,
1984 n_linker_options * sizeof (char **));
1986 /* Split the argument at commas. */
1988 for (j = 4; argv[i][j]; j++)
1989 if (argv[i][j] == ',')
1991 linker_options[n_linker_options - 1]
1992 = save_string (argv[i] + prev, j - prev);
1995 = (char **) xrealloc (linker_options,
1996 n_linker_options * sizeof (char **));
1999 /* Record the part after the last comma. */
2000 linker_options[n_linker_options - 1] = argv[i] + prev;
2002 else if (! strncmp (argv[i], "-Wa,", 4))
2005 /* Pass the rest of this option to the assembler. */
2007 n_assembler_options++;
2008 if (!assembler_options)
2010 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2013 = (char **) xrealloc (assembler_options,
2014 n_assembler_options * sizeof (char **));
2016 /* Split the argument at commas. */
2018 for (j = 4; argv[i][j]; j++)
2019 if (argv[i][j] == ',')
2021 assembler_options[n_assembler_options - 1]
2022 = save_string (argv[i] + prev, j - prev);
2023 n_assembler_options++;
2025 = (char **) xrealloc (assembler_options,
2026 n_assembler_options * sizeof (char **));
2029 /* Record the part after the last comma. */
2030 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2032 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2033 /* Compensate for the +e options to the C++ front-end. */
2035 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2037 register char *p = &argv[i][1];
2038 register int c = *p;
2043 if (p[1] == 0 && i + 1 == argc)
2044 fatal ("argument to `-b' is missing");
2046 spec_machine = argv[++i];
2048 spec_machine = p + 1;
2053 int *temp = (int *) xmalloc (sizeof (int));
2055 if (p[1] == 0 && i + 1 == argc)
2056 fatal ("argument to `-B' is missing");
2061 add_prefix (&exec_prefix, value, 1, 0, temp);
2062 add_prefix (&startfile_prefix, value, 1, 0, temp);
2066 case 'v': /* Print our subcommands and print versions. */
2068 /* If they do anything other than exactly `-v', don't set
2069 verbose_flag; rather, continue on to give the error. */
2076 if (p[1] == 0 && i + 1 == argc)
2077 fatal ("argument to `-V' is missing");
2079 spec_version = argv[++i];
2081 spec_version = p + 1;
2085 if (!strcmp (p, "save-temps"))
2087 save_temps_flag = 1;
2094 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2095 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2096 else if (WORD_SWITCH_TAKES_ARG (p))
2097 i += WORD_SWITCH_TAKES_ARG (p);
2104 /* Set up the search paths before we go looking for config files. */
2106 /* These come before the md prefixes so that we will find gcc's subcommands
2107 (such as cpp) rather than those of the host system. */
2108 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2109 as well as trying the machine and the version. */
2110 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2111 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2113 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2114 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2116 /* More prefixes are enabled in main, after we read the specs file
2117 and determine whether this is cross-compilation or not. */
2120 /* Then create the space for the vectors and scan again. */
2122 switches = ((struct switchstr *)
2123 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2124 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2127 last_language_n_infiles = -1;
2129 /* This, time, copy the text of each switch and store a pointer
2130 to the copy in the vector of switches.
2131 Store all the infiles in their vector. */
2133 for (i = 1; i < argc; i++)
2135 /* Just skip the switches that were handled by the preceding loop. */
2136 if (!strcmp (argv[i], "-Xlinker"))
2138 else if (! strncmp (argv[i], "-Wl,", 4))
2140 else if (! strncmp (argv[i], "-Wa,", 4))
2142 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2144 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2146 /* Compensate for the +e options to the C++ front-end;
2147 they're there simply for cfront call-compatability. We do
2148 some magic in default_compilers to pass them down properly.
2149 Note we deliberately start at the `+' here, to avoid passing
2150 -e0 or -e1 down into the linker. */
2151 switches[n_switches].part1 = &argv[i][0];
2152 switches[n_switches].args = 0;
2153 switches[n_switches].valid = 0;
2156 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2158 register char *p = &argv[i][1];
2159 register int c = *p;
2161 if (c == 'B' || c == 'b' || c == 'V')
2163 /* Skip a separate arg, if any. */
2170 if (p[1] == 0 && i + 1 == argc)
2171 fatal ("argument to `-x' is missing");
2173 spec_lang = argv[++i];
2176 if (! strcmp (spec_lang, "none"))
2177 /* Suppress the warning if -xnone comes after the last input file,
2178 because alternate command interfaces like g++ might find it
2179 useful to place -xnone after each input file. */
2182 last_language_n_infiles = n_infiles;
2185 switches[n_switches].part1 = p;
2186 /* Deal with option arguments in separate argv elements. */
2187 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2188 || WORD_SWITCH_TAKES_ARG (p)) {
2190 int n_args = WORD_SWITCH_TAKES_ARG (p);
2193 /* Count only the option arguments in separate argv elements. */
2194 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2196 switches[n_switches].args
2197 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2199 switches[n_switches].args[j++] = argv[++i];
2200 /* Null-terminate the vector. */
2201 switches[n_switches].args[j] = 0;
2202 } else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L')) {
2203 /* On some systems, ld cannot handle -o or -L without space.
2204 So split the -o or -L from its argument. */
2205 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2206 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2207 switches[n_switches].args[0] = xmalloc (strlen (p));
2208 strcpy (switches[n_switches].args[0], &p[1]);
2209 switches[n_switches].args[1] = 0;
2211 switches[n_switches].args = 0;
2212 switches[n_switches].valid = 0;
2213 /* This is always valid, since gcc.c itself understands it. */
2214 if (!strcmp (p, "save-temps"))
2215 switches[n_switches].valid = 1;
2220 infiles[n_infiles].language = spec_lang;
2221 infiles[n_infiles++].name = argv[i];
2225 if (n_infiles == last_language_n_infiles)
2226 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2228 switches[n_switches].part1 = 0;
2229 infiles[n_infiles].name = 0;
2231 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2232 if (gcc_exec_prefix)
2234 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2235 + strlen (spec_machine) + 3);
2236 strcpy (temp, gcc_exec_prefix);
2237 strcat (temp, spec_machine);
2239 strcat (temp, spec_version);
2241 gcc_exec_prefix = temp;
2245 /* Process a spec string, accumulating and running commands. */
2247 /* These variables describe the input file name.
2248 input_file_number is the index on outfiles of this file,
2249 so that the output file name can be stored for later use by %o.
2250 input_basename is the start of the part of the input file
2251 sans all directory names, and basename_length is the number
2252 of characters starting there excluding the suffix .c or whatever. */
2254 static char *input_filename;
2255 static int input_file_number;
2256 static int input_filename_length;
2257 static int basename_length;
2258 static char *input_basename;
2259 static char *input_suffix;
2261 /* These are variables used within do_spec and do_spec_1. */
2263 /* Nonzero if an arg has been started and not yet terminated
2264 (with space, tab or newline). */
2265 static int arg_going;
2267 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2268 is a temporary file name. */
2269 static int delete_this_arg;
2271 /* Nonzero means %w has been seen; the next arg to be terminated
2272 is the output file name of this compilation. */
2273 static int this_is_output_file;
2275 /* Nonzero means %s has been seen; the next arg to be terminated
2276 is the name of a library file and we should try the standard
2277 search dirs for it. */
2278 static int this_is_library_file;
2280 /* Process the spec SPEC and run the commands specified therein.
2281 Returns 0 if the spec is successfully processed; -1 if failed. */
2291 delete_this_arg = 0;
2292 this_is_output_file = 0;
2293 this_is_library_file = 0;
2295 value = do_spec_1 (spec, 0, NULL_PTR);
2297 /* Force out any unfinished command.
2298 If -pipe, this forces out the last command if it ended in `|'. */
2301 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2304 if (argbuf_index > 0)
2311 /* Process the sub-spec SPEC as a portion of a larger spec.
2312 This is like processing a whole spec except that we do
2313 not initialize at the beginning and we do not supply a
2314 newline by default at the end.
2315 INSWITCH nonzero means don't process %-sequences in SPEC;
2316 in this case, % is treated as an ordinary character.
2317 This is used while substituting switches.
2318 INSWITCH nonzero also causes SPC not to terminate an argument.
2320 Value is zero unless a line was finished
2321 and the command on that line reported an error. */
2324 do_spec_1 (spec, inswitch, soft_matched_part)
2327 char *soft_matched_part;
2329 register char *p = spec;
2335 /* If substituting a switch, treat all chars like letters.
2336 Otherwise, NL, SPC, TAB and % are special. */
2337 switch (inswitch ? 'a' : c)
2340 /* End of line: finish any pending argument,
2341 then run the pending command if one has been started. */
2344 obstack_1grow (&obstack, 0);
2345 string = obstack_finish (&obstack);
2346 if (this_is_library_file)
2347 string = find_file (string);
2348 store_arg (string, delete_this_arg, this_is_output_file);
2349 if (this_is_output_file)
2350 outfiles[input_file_number] = string;
2354 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2357 for (i = 0; i < n_switches; i++)
2358 if (!strcmp (switches[i].part1, "pipe"))
2361 /* A `|' before the newline means use a pipe here,
2362 but only if -pipe was specified.
2363 Otherwise, execute now and don't pass the `|' as an arg. */
2366 switches[i].valid = 1;
2373 if (argbuf_index > 0)
2375 int value = execute ();
2379 /* Reinitialize for a new command, and for a new argument. */
2382 delete_this_arg = 0;
2383 this_is_output_file = 0;
2384 this_is_library_file = 0;
2388 /* End any pending argument. */
2391 obstack_1grow (&obstack, 0);
2392 string = obstack_finish (&obstack);
2393 if (this_is_library_file)
2394 string = find_file (string);
2395 store_arg (string, delete_this_arg, this_is_output_file);
2396 if (this_is_output_file)
2397 outfiles[input_file_number] = string;
2401 obstack_1grow (&obstack, c);
2407 /* Space or tab ends an argument if one is pending. */
2410 obstack_1grow (&obstack, 0);
2411 string = obstack_finish (&obstack);
2412 if (this_is_library_file)
2413 string = find_file (string);
2414 store_arg (string, delete_this_arg, this_is_output_file);
2415 if (this_is_output_file)
2416 outfiles[input_file_number] = string;
2418 /* Reinitialize for a new argument. */
2420 delete_this_arg = 0;
2421 this_is_output_file = 0;
2422 this_is_library_file = 0;
2429 fatal ("Invalid specification! Bug in cc.");
2432 obstack_grow (&obstack, input_basename, basename_length);
2437 delete_this_arg = 2;
2440 /* Dump out the directories specified with LIBRARY_PATH,
2441 followed by the absolute directories
2442 that we search for startfiles. */
2444 for (i = 0; i < 2; i++)
2446 struct prefix_list *pl
2447 = (i == 0 ? library_prefix.plist : startfile_prefix.plist);
2449 char *buffer = (char *) xmalloc (bufsize);
2452 for (; pl; pl = pl->next)
2454 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2455 /* Used on systems which record the specified -L dirs
2456 and use them to search for dynamic linking. */
2457 /* Relative directories always come from -B,
2458 and it is better not to use them for searching
2459 at run time. In particular, stage1 loses */
2460 if (pl->prefix[0] != '/')
2465 if (is_linker_dir (pl->prefix, machine_suffix))
2467 do_spec_1 ("-L", 0, NULL_PTR);
2468 #ifdef SPACE_AFTER_L_OPTION
2469 do_spec_1 (" ", 0, NULL_PTR);
2471 do_spec_1 (pl->prefix, 1, NULL_PTR);
2472 /* Remove slash from machine_suffix. */
2473 if (strlen (machine_suffix) >= bufsize)
2474 bufsize = strlen (machine_suffix) * 2 + 1;
2475 buffer = (char *) xrealloc (buffer, bufsize);
2476 strcpy (buffer, machine_suffix);
2477 idx = strlen (buffer);
2478 if (buffer[idx - 1] == '/')
2479 buffer[idx - 1] = 0;
2480 do_spec_1 (buffer, 1, NULL_PTR);
2481 /* Make this a separate argument. */
2482 do_spec_1 (" ", 0, NULL_PTR);
2485 if (!pl->require_machine_suffix)
2487 if (is_linker_dir (pl->prefix, ""))
2489 do_spec_1 ("-L", 0, NULL_PTR);
2490 #ifdef SPACE_AFTER_L_OPTION
2491 do_spec_1 (" ", 0, NULL_PTR);
2493 /* Remove slash from pl->prefix. */
2494 if (strlen (pl->prefix) >= bufsize)
2495 bufsize = strlen (pl->prefix) * 2 + 1;
2496 buffer = (char *) xrealloc (buffer, bufsize);
2497 strcpy (buffer, pl->prefix);
2498 idx = strlen (buffer);
2499 if (buffer[idx - 1] == '/')
2500 buffer[idx - 1] = 0;
2501 do_spec_1 (buffer, 1, NULL_PTR);
2502 /* Make this a separate argument. */
2503 do_spec_1 (" ", 0, NULL_PTR);
2512 /* {...:%efoo} means report an error with `foo' as error message
2513 and don't execute any more commands for this file. */
2517 while (*p != 0 && *p != '\n') p++;
2518 buf = (char *) alloca (p - q + 1);
2519 strncpy (buf, q, p - q);
2529 if (save_temps_flag)
2530 obstack_grow (&obstack, input_basename, basename_length);
2533 obstack_grow (&obstack, temp_filename, temp_filename_length);
2534 if (c == 'u' || c == 'U')
2540 sprintf (buff, "%d", unique);
2541 obstack_grow (&obstack, buff, strlen (buff));
2543 delete_this_arg = 1;
2549 obstack_grow (&obstack, input_filename, input_filename_length);
2554 if (gcc_exec_prefix)
2556 do_spec_1 ("-iprefix", 1, NULL_PTR);
2557 /* Make this a separate argument. */
2558 do_spec_1 (" ", 0, NULL_PTR);
2559 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
2560 do_spec_1 (" ", 0, NULL_PTR);
2567 for (f = 0; f < n_infiles; f++)
2568 store_arg (outfiles[f], 0, 0);
2573 this_is_library_file = 1;
2577 this_is_output_file = 1;
2582 int index = argbuf_index;
2583 /* Handle the {...} following the %W. */
2586 p = handle_braces (p + 1);
2589 /* If any args were output, mark the last one for deletion
2591 if (argbuf_index != index)
2592 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
2596 /* %x{OPTION} records OPTION for %X to output. */
2602 /* Skip past the option value and make a copy. */
2607 string = save_string (p1 + 1, p - p1 - 2);
2609 /* See if we already recorded this option. */
2610 for (i = 0; i < n_linker_options; i++)
2611 if (! strcmp (string, linker_options[i]))
2617 /* This option is new; add it. */
2619 if (!linker_options)
2621 = (char **) xmalloc (n_linker_options * sizeof (char **));
2624 = (char **) xrealloc (linker_options,
2625 n_linker_options * sizeof (char **));
2627 linker_options[n_linker_options - 1] = string;
2631 /* Dump out the options accumulated previously using %x,
2632 -Xlinker and -Wl,. */
2634 for (i = 0; i < n_linker_options; i++)
2636 do_spec_1 (linker_options[i], 1, NULL_PTR);
2637 /* Make each accumulated option a separate argument. */
2638 do_spec_1 (" ", 0, NULL_PTR);
2642 /* Dump out the options accumulated previously using -Wa,. */
2644 for (i = 0; i < n_assembler_options; i++)
2646 do_spec_1 (assembler_options[i], 1, NULL_PTR);
2647 /* Make each accumulated option a separate argument. */
2648 do_spec_1 (" ", 0, NULL_PTR);
2652 /* Here are digits and numbers that just process
2653 a certain constant string as a spec.
2654 /* Here are digits and numbers that just process
2655 a certain constant string as a spec. */
2658 do_spec_1 (cc1_spec, 0, NULL_PTR);
2662 do_spec_1 (cc1plus_spec, 0, NULL_PTR);
2666 do_spec_1 (asm_spec, 0, NULL_PTR);
2670 do_spec_1 (asm_final_spec, 0, NULL_PTR);
2674 do_spec_1 (signed_char_spec, 0, NULL_PTR);
2678 do_spec_1 (cpp_spec, 0, NULL_PTR);
2682 do_spec_1 (endfile_spec, 0, NULL_PTR);
2686 do_spec_1 (link_spec, 0, NULL_PTR);
2690 do_spec_1 (lib_spec, 0, NULL_PTR);
2695 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
2699 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
2703 if (! strncmp (y, "-D", 2))
2704 /* Copy the whole option. */
2705 while (*y && *y != ' ' && *y != '\t')
2707 else if (*y == ' ' || *y == '\t')
2708 /* Copy whitespace to the result. */
2710 /* Don't copy other options. */
2717 do_spec_1 (buf, 0, NULL_PTR);
2723 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
2727 /* Copy all of CPP_PREDEFINES into BUF,
2728 but put __ after every -D and at the end of each arg. */
2732 if (! strncmp (y, "-D", 2))
2739 if (strncmp (y, "__", 2))
2741 /* Stick __ at front of macro name. */
2744 /* Arrange to stick __ at the end as well. */
2748 /* Copy the macro name. */
2749 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2758 /* Copy the value given, if any. */
2759 while (*y && *y != ' ' && *y != '\t')
2762 else if (*y == ' ' || *y == '\t')
2763 /* Copy whitespace to the result. */
2765 /* Don't copy -A options */
2771 /* Copy all of CPP_PREDEFINES into BUF,
2772 but put __ after every -D. */
2776 if (! strncmp (y, "-D", 2))
2781 if (strncmp (y, "__", 2))
2783 /* Stick __ at front of macro name. */
2788 /* Copy the macro name. */
2789 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2792 /* Copy the value given, if any. */
2793 while (*y && *y != ' ' && *y != '\t')
2796 else if (*y == ' ' || *y == '\t')
2797 /* Copy whitespace to the result. */
2799 /* Don't copy -A options */
2805 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
2809 if (! strncmp (y, "-A", 2))
2810 /* Copy the whole option. */
2811 while (*y && *y != ' ' && *y != '\t')
2813 else if (*y == ' ' || *y == '\t')
2814 /* Copy whitespace to the result. */
2816 /* Don't copy other options. */
2823 do_spec_1 (buf, 0, NULL_PTR);
2828 do_spec_1 (startfile_spec, 0, NULL_PTR);
2831 /* Here we define characters other than letters and digits. */
2834 p = handle_braces (p);
2840 obstack_1grow (&obstack, '%');
2844 do_spec_1 (soft_matched_part, 1, NULL_PTR);
2845 do_spec_1 (" ", 0, NULL_PTR);
2848 /* Process a string found as the value of a spec given by name.
2849 This feature allows individual machine descriptions
2850 to add and use their own specs.
2851 %[...] modifies -D options the way %P does;
2852 %(...) uses the spec unmodified. */
2857 struct spec_list *sl;
2860 /* The string after the S/P is the name of a spec that is to be
2862 while (*p && *p != ')' && *p != ']')
2865 /* See if it's in the list */
2866 for (len = p - name, sl = specs; sl; sl = sl->next)
2867 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
2876 do_spec_1 (name, 0, NULL_PTR);
2879 char *x = (char *) alloca (strlen (name) * 2 + 1);
2883 /* Copy all of NAME into BUF, but put __ after
2884 every -D and at the end of each arg, */
2887 if (! strncmp (y, "-D", 2))
2895 else if (*y == ' ' || *y == 0)
2909 do_spec_1 (buf, 0, NULL_PTR);
2913 /* Discard the closing paren or bracket. */
2925 /* Backslash: treat next character as ordinary. */
2930 /* Ordinary character: put it into the current argument. */
2931 obstack_1grow (&obstack, c);
2935 return 0; /* End of string */
2938 /* Return 0 if we call do_spec_1 and that returns -1. */
2951 /* A `|' after the open-brace means,
2952 if the test fails, output a single minus sign rather than nothing.
2953 This is used in %{|!pipe:...}. */
2957 /* A `!' after the open-brace negates the condition:
2958 succeed if the specified switch is not present. */
2962 /* A `.' after the open-brace means test against the current suffix. */
2972 while (*p != ':' && *p != '}') p++;
2975 register int count = 1;
2993 int found = (input_suffix != 0
2994 && strlen (input_suffix) == p - filter
2995 && strncmp (input_suffix, filter, p - filter) == 0);
3001 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3006 else if (p[-1] == '*' && p[0] == '}')
3008 /* Substitute all matching switches as separate args. */
3011 for (i = 0; i < n_switches; i++)
3012 if (!strncmp (switches[i].part1, filter, p - filter))
3017 /* Test for presence of the specified switch. */
3021 /* If name specified ends in *, as in {x*:...},
3022 check for %* and handle that case. */
3023 if (p[-1] == '*' && !negate)
3028 /* First see whether we have %*. */
3032 if (*r == '%' && r[1] == '*')
3036 /* If we do, handle that case. */
3039 /* Substitute all matching switches as separate args.
3040 But do this by substituting for %*
3041 in the text that follows the colon. */
3043 unsigned hard_match_len = p - filter - 1;
3044 char *string = save_string (p + 1, q - p - 2);
3046 for (i = 0; i < n_switches; i++)
3047 if (!strncmp (switches[i].part1, filter, hard_match_len))
3049 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3050 /* Pass any arguments this switch has. */
3058 /* If name specified ends in *, as in {x*:...},
3059 check for presence of any switch name starting with x. */
3062 for (i = 0; i < n_switches; i++)
3064 unsigned hard_match_len = p - filter - 1;
3066 if (!strncmp (switches[i].part1, filter, hard_match_len))
3068 switches[i].valid = 1;
3073 /* Otherwise, check for presence of exact name specified. */
3076 for (i = 0; i < n_switches; i++)
3078 if (!strncmp (switches[i].part1, filter, p - filter)
3079 && switches[i].part1[p - filter] == 0)
3081 switches[i].valid = 1;
3088 /* If it is as desired (present for %{s...}, absent for %{-s...})
3089 then substitute either the switch or the specified
3090 conditional text. */
3091 if (present != negate)
3099 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3105 /* Here if a %{|...} conditional fails: output a minus sign,
3106 which means "standard output" or "standard input". */
3107 do_spec_1 ("-", 0, NULL_PTR);
3114 /* Pass a switch to the current accumulating command
3115 in the same form that we received it.
3116 SWITCHNUM identifies the switch; it is an index into
3117 the vector of switches gcc received, which is `switches'.
3118 This cannot fail since it never finishes a command line.
3120 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3123 give_switch (switchnum, omit_first_word)
3125 int omit_first_word;
3127 if (!omit_first_word)
3129 do_spec_1 ("-", 0, NULL_PTR);
3130 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3132 do_spec_1 (" ", 0, NULL_PTR);
3133 if (switches[switchnum].args != 0)
3136 for (p = switches[switchnum].args; *p; p++)
3138 do_spec_1 (*p, 1, NULL_PTR);
3139 do_spec_1 (" ", 0, NULL_PTR);
3142 switches[switchnum].valid = 1;
3145 /* Search for a file named NAME trying various prefixes including the
3146 user's -B prefix and some standard ones.
3147 Return the absolute file name found. If nothing is found, return NAME. */
3155 newname = find_a_file (&startfile_prefix, name, R_OK);
3156 return newname ? newname : name;
3159 /* Determine whether a -L option is relevant. Not required for certain
3160 fixed names and for directories that don't exist. */
3163 is_linker_dir (path1, path2)
3167 int len1 = strlen (path1);
3168 int len2 = strlen (path2);
3169 char *path = (char *) alloca (3 + len1 + len2);
3173 /* Construct the path from the two parts. Ensure the string ends with "/.".
3174 The resulting path will be a directory even if the given path is a
3176 bcopy (path1, path, len1);
3177 bcopy (path2, path + len1, len2);
3178 cp = path + len1 + len2;
3184 /* Exclude directories that the linker is known to search. */
3185 if ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3186 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0))
3189 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3192 /* On fatal signals, delete all the temporary files. */
3195 fatal_error (signum)
3198 signal (signum, SIG_DFL);
3199 delete_failure_queue ();
3200 delete_temp_files ();
3201 /* Get the same signal again, this time not handled,
3202 so its normal effect occurs. */
3203 kill (getpid (), signum);
3214 int error_count = 0;
3215 int linker_was_run = 0;
3216 char *explicit_link_files;
3219 programname = argv[0];
3221 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3222 signal (SIGINT, fatal_error);
3223 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3224 signal (SIGHUP, fatal_error);
3225 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3226 signal (SIGTERM, fatal_error);
3228 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3229 signal (SIGPIPE, fatal_error);
3233 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3235 obstack_init (&obstack);
3237 /* Set up to remember the pathname of gcc and any options
3238 needed for collect. */
3239 obstack_init (&collect_obstack);
3240 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3241 obstack_grow (&collect_obstack, programname, strlen (programname)+1);
3242 putenv (obstack_finish (&collect_obstack));
3244 /* Choose directory for temp files. */
3246 choose_temp_base ();
3248 /* Make a table of what switches there are (switches, n_switches).
3249 Make a table of specified input files (infiles, n_infiles).
3250 Decode switches that are handled locally. */
3252 process_command (argc, argv);
3254 /* Initialize the vector of specs to just the default.
3255 This means one element containing 0s, as a terminator. */
3257 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3258 bcopy (default_compilers, compilers, sizeof default_compilers);
3259 n_compilers = n_default_compilers;
3261 /* Read specs from a file if there is one. */
3263 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3264 just_machine_suffix = concat (spec_machine, "/", "");
3266 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3267 /* Read the specs file unless it is a default one. */
3268 if (specs_file != 0 && strcmp (specs_file, "specs"))
3269 read_specs (specs_file);
3271 /* If not cross-compiling, look for startfiles in the standard places. */
3272 /* The fact that these are done here, after reading the specs file,
3273 means that it cannot be found in these directories.
3274 But that's okay. It should never be there anyway. */
3277 #ifdef MD_EXEC_PREFIX
3278 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3279 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3282 #ifdef MD_STARTFILE_PREFIX
3283 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3286 #ifdef MD_STARTFILE_PREFIX_1
3287 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3290 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3292 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3294 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3296 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3297 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
3301 /* Now we have the specs.
3302 Set the `valid' bits for switches that match anything in any spec. */
3304 validate_all_switches ();
3306 /* Warn about any switches that no pass was interested in. */
3308 for (i = 0; i < n_switches; i++)
3309 if (! switches[i].valid)
3310 error ("unrecognized option `-%s'", switches[i].part1);
3312 if (print_libgcc_file_name)
3314 printf ("%s\n", find_file ("libgcc.a"));
3318 /* Obey some of the options. */
3322 fprintf (stderr, "gcc version %s\n", version_string);
3328 fatal ("No input files specified.");
3330 /* Make a place to record the compiler output file names
3331 that correspond to the input files. */
3333 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
3334 bzero (outfiles, n_infiles * sizeof (char *));
3336 /* Record which files were specified explicitly as link input. */
3338 explicit_link_files = xmalloc (n_infiles);
3339 bzero (explicit_link_files, n_infiles);
3341 for (i = 0; i < n_infiles; i++)
3343 register struct compiler *cp = 0;
3344 int this_file_error = 0;
3346 /* Tell do_spec what to substitute for %i. */
3348 input_filename = infiles[i].name;
3349 input_filename_length = strlen (input_filename);
3350 input_file_number = i;
3352 /* Use the same thing in %o, unless cp->spec says otherwise. */
3354 outfiles[i] = input_filename;
3356 /* Figure out which compiler from the file's suffix. */
3358 cp = lookup_compiler (infiles[i].name, input_filename_length,
3359 infiles[i].language);
3363 /* Ok, we found an applicable compiler. Run its spec. */
3364 /* First say how much of input_filename to substitute for %b */
3368 input_basename = input_filename;
3369 for (p = input_filename; *p; p++)
3371 input_basename = p + 1;
3373 /* Find a suffix starting with the last period,
3374 and set basename_length to exclude that suffix. */
3375 basename_length = strlen (input_basename);
3376 p = input_basename + basename_length;
3377 while (p != input_basename && *p != '.') --p;
3378 if (*p == '.' && p != input_basename)
3380 basename_length = p - input_basename;
3381 input_suffix = p + 1;
3387 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3389 len += strlen (cp->spec[j]);
3391 p = (char *) xmalloc (len + 1);
3394 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3397 strcpy (p + len, cp->spec[j]);
3398 len += strlen (cp->spec[j]);
3401 value = do_spec (p);
3404 this_file_error = 1;
3407 /* If this file's name does not contain a recognized suffix,
3408 record it as explicit linker input. */
3411 explicit_link_files[i] = 1;
3413 /* Clear the delete-on-failure queue, deleting the files in it
3414 if this compilation failed. */
3416 if (this_file_error)
3418 delete_failure_queue ();
3421 /* If this compilation succeeded, don't delete those files later. */
3422 clear_failure_queue ();
3425 /* Run ld to link all the compiler output files. */
3427 if (error_count == 0)
3429 int tmp = execution_count;
3433 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
3435 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
3436 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
3438 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3440 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
3441 sizeof ("COLLECT_GCC_OPTIONS=")-1);
3444 for (i = 0; i < n_switches; i++)
3448 obstack_grow (&collect_obstack, " ", 1);
3451 obstack_grow (&collect_obstack, "-", 1);
3452 obstack_grow (&collect_obstack, switches[i].part1,
3453 strlen (switches[i].part1));
3455 for (args = switches[i].args; args && *args; args++)
3457 obstack_grow (&collect_obstack, " ", 1);
3458 obstack_grow (&collect_obstack, *args, strlen (*args));
3461 obstack_grow (&collect_obstack, "\0", 1);
3462 putenv (obstack_finish (&collect_obstack));
3464 value = do_spec (link_command_spec);
3467 linker_was_run = (tmp != execution_count);
3470 /* Warn if a -B option was specified but the prefix was never used. */
3471 unused_prefix_warnings (&exec_prefix);
3472 unused_prefix_warnings (&startfile_prefix);
3474 /* If options said don't run linker,
3475 complain about input files to be given to the linker. */
3477 if (! linker_was_run && error_count == 0)
3478 for (i = 0; i < n_infiles; i++)
3479 if (explicit_link_files[i])
3480 error ("%s: linker input file unused since linking not done",
3483 /* Delete some or all of the temporary files we made. */
3486 delete_failure_queue ();
3487 delete_temp_files ();
3489 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
3494 /* Find the proper compilation spec for the file name NAME,
3495 whose length is LENGTH. LANGUAGE is the specified language,
3496 or 0 if none specified. */
3498 static struct compiler *
3499 lookup_compiler (name, length, language)
3504 struct compiler *cp;
3506 /* Look for the language, if one is spec'd. */
3509 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3513 if (cp->suffix[0] == '@'
3514 && !strcmp (cp->suffix + 1, language))
3518 error ("language %s not recognized", language);
3521 /* Look for a suffix. */
3522 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3524 if (strlen (cp->suffix) < length
3525 /* See if the suffix matches the end of NAME. */
3526 && !strcmp (cp->suffix,
3527 name + length - strlen (cp->suffix))
3528 /* The suffix `-' matches only the file name `-'. */
3529 && !(!strcmp (cp->suffix, "-") && length != 1))
3531 if (cp->spec[0][0] == '@')
3533 struct compiler *new;
3534 /* An alias entry maps a suffix to a language.
3535 Search for the language; pass 0 for NAME and LENGTH
3536 to avoid infinite recursion if language not found.
3537 Construct the new compiler spec. */
3538 language = cp->spec[0] + 1;
3539 new = (struct compiler *) xmalloc (sizeof (struct compiler));
3540 new->suffix = cp->suffix;
3541 bcopy (lookup_compiler (NULL_PTR, 0, language)->spec,
3542 new->spec, sizeof new->spec);
3545 /* A non-alias entry: return it. */
3557 register char *value = (char *) malloc (size);
3559 fatal ("virtual memory exhausted");
3564 xrealloc (ptr, size)
3568 register char *value = (char *) realloc (ptr, size);
3570 fatal ("virtual memory exhausted");
3574 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
3580 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
3581 char *result = xmalloc (len1 + len2 + len3 + 1);
3583 strcpy (result, s1);
3584 strcpy (result + len1, s2);
3585 strcpy (result + len1 + len2, s3);
3586 *(result + len1 + len2 + len3) = 0;
3592 save_string (s, len)
3596 register char *result = xmalloc (len + 1);
3598 bcopy (s, result, len);
3604 pfatal_with_name (name)
3609 if (errno < sys_nerr)
3610 s = concat ("%s: ", sys_errlist[errno], "");
3612 s = "cannot open %s";
3617 perror_with_name (name)
3622 if (errno < sys_nerr)
3623 s = concat ("%s: ", sys_errlist[errno], "");
3625 s = "cannot open %s";
3635 if (errno < sys_nerr)
3636 s = concat ("installation problem, cannot exec %s: ",
3637 sys_errlist[errno], "");
3639 s = "installation problem, cannot exec %s";
3643 /* More 'friendly' abort that prints the line and file.
3644 config.h can #define abort fancy_abort if you like that sort of thing. */
3649 fatal ("Internal gcc abort.");
3654 /* Output an error message and exit */
3664 format = va_arg (ap, char *);
3665 fprintf (stderr, "%s: ", programname);
3666 vfprintf (stderr, format, ap);
3668 fprintf (stderr, "\n");
3669 delete_temp_files ();
3681 format = va_arg (ap, char *);
3682 fprintf (stderr, "%s: ", programname);
3683 vfprintf (stderr, format, ap);
3686 fprintf (stderr, "\n");
3689 #else /* not HAVE_VPRINTF */
3692 fatal (msg, arg1, arg2)
3693 char *msg, *arg1, *arg2;
3695 error (msg, arg1, arg2);
3696 delete_temp_files ();
3701 error (msg, arg1, arg2)
3702 char *msg, *arg1, *arg2;
3704 fprintf (stderr, "%s: ", programname);
3705 fprintf (stderr, msg, arg1, arg2);
3706 fprintf (stderr, "\n");
3709 #endif /* not HAVE_VPRINTF */
3713 validate_all_switches ()
3715 struct compiler *comp;
3718 struct spec_list *spec;
3720 for (comp = compilers; comp->spec[0]; comp++)
3723 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
3727 if (c == '%' && *p == '{')
3728 /* We have a switch spec. */
3729 validate_switches (p + 1);
3733 /* look through the linked list of extra specs read from the specs file */
3734 for (spec = specs; spec ; spec = spec->next)
3738 if (c == '%' && *p == '{')
3739 /* We have a switch spec. */
3740 validate_switches (p + 1);
3743 p = link_command_spec;
3745 if (c == '%' && *p == '{')
3746 /* We have a switch spec. */
3747 validate_switches (p + 1);
3749 /* Now notice switches mentioned in the machine-specific specs. */
3753 if (c == '%' && *p == '{')
3754 /* We have a switch spec. */
3755 validate_switches (p + 1);
3759 if (c == '%' && *p == '{')
3760 /* We have a switch spec. */
3761 validate_switches (p + 1);
3765 if (c == '%' && *p == '{')
3766 /* We have a switch spec. */
3767 validate_switches (p + 1);
3769 p = signed_char_spec;
3771 if (c == '%' && *p == '{')
3772 /* We have a switch spec. */
3773 validate_switches (p + 1);
3777 if (c == '%' && *p == '{')
3778 /* We have a switch spec. */
3779 validate_switches (p + 1);
3783 if (c == '%' && *p == '{')
3784 /* We have a switch spec. */
3785 validate_switches (p + 1);
3789 if (c == '%' && *p == '{')
3790 /* We have a switch spec. */
3791 validate_switches (p + 1);
3795 if (c == '%' && *p == '{')
3796 /* We have a switch spec. */
3797 validate_switches (p + 1);
3801 if (c == '%' && *p == '{')
3802 /* We have a switch spec. */
3803 validate_switches (p + 1);
3806 /* Look at the switch-name that comes after START
3807 and mark as valid all supplied switches that match it. */
3810 validate_switches (start)
3813 register char *p = start;
3828 while (*p != ':' && *p != '}') p++;
3832 else if (p[-1] == '*')
3834 /* Mark all matching switches as valid. */
3836 for (i = 0; i < n_switches; i++)
3837 if (!strncmp (switches[i].part1, filter, p - filter))
3838 switches[i].valid = 1;
3842 /* Mark an exact matching switch as valid. */
3843 for (i = 0; i < n_switches; i++)
3845 if (!strncmp (switches[i].part1, filter, p - filter)
3846 && switches[i].part1[p - filter] == 0)
3847 switches[i].valid = 1;