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 start 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*} %{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 %{D*} %{U*} %{i*}\
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*} %{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 %{D*} %{U*} %{i*}\
461 %{!E:%e-E required when input is from standard input}"},
462 {".m", "@objective-c"},
464 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{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 %{D*} %{U*} %{i*}\
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*} %{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 %{D*} %{U*} %{i*}\
500 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{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 %{D*} %{U*} %{i*}\
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*} %{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 %{D*} %{U*} %{i*}\
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");
1805 /* Default for -V is our version number, ending at first space. */
1806 spec_version = save_string (version_string, strlen (version_string));
1807 for (temp = spec_version; *temp && *temp != ' '; temp++);
1808 if (*temp) *temp = '\0';
1810 /* Set up the default search paths. */
1812 if (gcc_exec_prefix)
1814 add_prefix (&exec_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1815 add_prefix (&startfile_prefix, gcc_exec_prefix, 0, 0, NULL_PTR);
1818 /* COMPILER_PATH and LIBRARY_PATH have values
1819 that are lists of directory names with colons. */
1821 temp = getenv ("COMPILER_PATH");
1824 char *startp, *endp;
1825 char *nstore = (char *) alloca (strlen (temp) + 3);
1827 startp = endp = temp;
1830 if (*endp == PATH_SEPARATOR || *endp == 0)
1832 strncpy (nstore, startp, endp-startp);
1835 strcpy (nstore, "./");
1837 else if (endp[-1] != '/')
1839 nstore[endp-startp] = '/';
1840 nstore[endp-startp+1] = 0;
1843 nstore[endp-startp] = 0;
1844 add_prefix (&exec_prefix, nstore, 0, 0, NULL_PTR);
1847 endp = startp = endp + 1;
1854 temp = getenv ("LIBRARY_PATH");
1857 char *startp, *endp;
1858 char *nstore = (char *) alloca (strlen (temp) + 3);
1860 startp = endp = temp;
1863 if (*endp == PATH_SEPARATOR || *endp == 0)
1865 strncpy (nstore, startp, endp-startp);
1868 strcpy (nstore, "./");
1870 else if (endp[-1] != '/')
1872 nstore[endp-startp] = '/';
1873 nstore[endp-startp+1] = 0;
1876 nstore[endp-startp] = 0;
1877 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1878 /* Make separate list of dirs that came from LIBRARY_PATH. */
1879 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1882 endp = startp = endp + 1;
1889 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
1890 temp = getenv ("LPATH");
1893 char *startp, *endp;
1894 char *nstore = (char *) alloca (strlen (temp) + 3);
1896 startp = endp = temp;
1899 if (*endp == PATH_SEPARATOR || *endp == 0)
1901 strncpy (nstore, startp, endp-startp);
1904 strcpy (nstore, "./");
1906 else if (endp[-1] != '/')
1908 nstore[endp-startp] = '/';
1909 nstore[endp-startp+1] = 0;
1912 nstore[endp-startp] = 0;
1913 add_prefix (&startfile_prefix, nstore, 0, 0, NULL_PTR);
1914 /* Make separate list of dirs that came from LIBRARY_PATH. */
1915 add_prefix (&library_prefix, nstore, 0, 0, NULL_PTR);
1918 endp = startp = endp + 1;
1925 /* Scan argv twice. Here, the first time, just count how many switches
1926 there will be in their vector, and how many input files in theirs.
1927 Here we also parse the switches that cc itself uses (e.g. -v). */
1929 for (i = 1; i < argc; i++)
1931 if (! strcmp (argv[i], "-dumpspecs"))
1933 printf ("*asm:\n%s\n\n", asm_spec);
1934 printf ("*asm_final:\n%s\n\n", asm_final_spec);
1935 printf ("*cpp:\n%s\n\n", cpp_spec);
1936 printf ("*cc1:\n%s\n\n", cc1_spec);
1937 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
1938 printf ("*endfile:\n%s\n\n", endfile_spec);
1939 printf ("*link:\n%s\n\n", link_spec);
1940 printf ("*lib:\n%s\n\n", lib_spec);
1941 printf ("*startfile:\n%s\n\n", startfile_spec);
1942 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
1943 printf ("*signed_char:\n%s\n\n", signed_char_spec);
1944 printf ("*predefines:\n%s\n\n", cpp_predefines);
1945 printf ("*cross_compile:\n%d\n\n", cross_compile);
1949 else if (! strcmp (argv[i], "-dumpversion"))
1951 printf ("%s\n", version_string);
1954 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
1956 print_libgcc_file_name = 1;
1958 else if (! strcmp (argv[i], "-Xlinker"))
1960 /* Pass the argument of this option to the linker when we link. */
1963 fatal ("argument to `-Xlinker' is missing");
1966 if (!linker_options)
1968 = (char **) xmalloc (n_linker_options * sizeof (char **));
1971 = (char **) xrealloc (linker_options,
1972 n_linker_options * sizeof (char **));
1974 linker_options[n_linker_options - 1] = argv[++i];
1976 else if (! strncmp (argv[i], "-Wl,", 4))
1979 /* Pass the rest of this option to the linker when we link. */
1982 if (!linker_options)
1984 = (char **) xmalloc (n_linker_options * sizeof (char **));
1987 = (char **) xrealloc (linker_options,
1988 n_linker_options * sizeof (char **));
1990 /* Split the argument at commas. */
1992 for (j = 4; argv[i][j]; j++)
1993 if (argv[i][j] == ',')
1995 linker_options[n_linker_options - 1]
1996 = save_string (argv[i] + prev, j - prev);
1999 = (char **) xrealloc (linker_options,
2000 n_linker_options * sizeof (char **));
2003 /* Record the part after the last comma. */
2004 linker_options[n_linker_options - 1] = argv[i] + prev;
2006 else if (! strncmp (argv[i], "-Wa,", 4))
2009 /* Pass the rest of this option to the assembler. */
2011 n_assembler_options++;
2012 if (!assembler_options)
2014 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2017 = (char **) xrealloc (assembler_options,
2018 n_assembler_options * sizeof (char **));
2020 /* Split the argument at commas. */
2022 for (j = 4; argv[i][j]; j++)
2023 if (argv[i][j] == ',')
2025 assembler_options[n_assembler_options - 1]
2026 = save_string (argv[i] + prev, j - prev);
2027 n_assembler_options++;
2029 = (char **) xrealloc (assembler_options,
2030 n_assembler_options * sizeof (char **));
2033 /* Record the part after the last comma. */
2034 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2036 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2037 /* Compensate for the +e options to the C++ front-end. */
2039 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2041 register char *p = &argv[i][1];
2042 register int c = *p;
2047 if (p[1] == 0 && i + 1 == argc)
2048 fatal ("argument to `-b' is missing");
2050 spec_machine = argv[++i];
2052 spec_machine = p + 1;
2057 int *temp = (int *) xmalloc (sizeof (int));
2059 if (p[1] == 0 && i + 1 == argc)
2060 fatal ("argument to `-B' is missing");
2065 add_prefix (&exec_prefix, value, 1, 0, temp);
2066 add_prefix (&startfile_prefix, value, 1, 0, temp);
2070 case 'v': /* Print our subcommands and print versions. */
2072 /* If they do anything other than exactly `-v', don't set
2073 verbose_flag; rather, continue on to give the error. */
2080 if (p[1] == 0 && i + 1 == argc)
2081 fatal ("argument to `-V' is missing");
2083 spec_version = argv[++i];
2085 spec_version = p + 1;
2089 if (!strcmp (p, "save-temps"))
2091 save_temps_flag = 1;
2098 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2099 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2100 else if (WORD_SWITCH_TAKES_ARG (p))
2101 i += WORD_SWITCH_TAKES_ARG (p);
2108 /* Set up the search paths before we go looking for config files. */
2110 /* These come before the md prefixes so that we will find gcc's subcommands
2111 (such as cpp) rather than those of the host system. */
2112 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2113 as well as trying the machine and the version. */
2114 add_prefix (&exec_prefix, standard_exec_prefix, 0, 2, NULL_PTR);
2115 add_prefix (&exec_prefix, standard_exec_prefix_1, 0, 2, NULL_PTR);
2117 add_prefix (&startfile_prefix, standard_exec_prefix, 0, 1, NULL_PTR);
2118 add_prefix (&startfile_prefix, standard_exec_prefix_1, 0, 1, NULL_PTR);
2120 /* More prefixes are enabled in main, after we read the specs file
2121 and determine whether this is cross-compilation or not. */
2124 /* Then create the space for the vectors and scan again. */
2126 switches = ((struct switchstr *)
2127 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2128 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2131 last_language_n_infiles = -1;
2133 /* This, time, copy the text of each switch and store a pointer
2134 to the copy in the vector of switches.
2135 Store all the infiles in their vector. */
2137 for (i = 1; i < argc; i++)
2139 /* Just skip the switches that were handled by the preceding loop. */
2140 if (!strcmp (argv[i], "-Xlinker"))
2142 else if (! strncmp (argv[i], "-Wl,", 4))
2144 else if (! strncmp (argv[i], "-Wa,", 4))
2146 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2148 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2150 /* Compensate for the +e options to the C++ front-end;
2151 they're there simply for cfront call-compatability. We do
2152 some magic in default_compilers to pass them down properly.
2153 Note we deliberately start at the `+' here, to avoid passing
2154 -e0 or -e1 down into the linker. */
2155 switches[n_switches].part1 = &argv[i][0];
2156 switches[n_switches].args = 0;
2157 switches[n_switches].valid = 0;
2160 else if (argv[i][0] == '-' && argv[i][1] != 0 && argv[i][1] != 'l')
2162 register char *p = &argv[i][1];
2163 register int c = *p;
2165 if (c == 'B' || c == 'b' || c == 'V')
2167 /* Skip a separate arg, if any. */
2174 if (p[1] == 0 && i + 1 == argc)
2175 fatal ("argument to `-x' is missing");
2177 spec_lang = argv[++i];
2180 if (! strcmp (spec_lang, "none"))
2181 /* Suppress the warning if -xnone comes after the last input file,
2182 because alternate command interfaces like g++ might find it
2183 useful to place -xnone after each input file. */
2186 last_language_n_infiles = n_infiles;
2189 switches[n_switches].part1 = p;
2190 /* Deal with option arguments in separate argv elements. */
2191 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2192 || WORD_SWITCH_TAKES_ARG (p)) {
2194 int n_args = WORD_SWITCH_TAKES_ARG (p);
2197 /* Count only the option arguments in separate argv elements. */
2198 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2200 if (i + n_args >= argc)
2201 fatal ("argument to `-%s' is missing", p);
2202 switches[n_switches].args
2203 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2205 switches[n_switches].args[j++] = argv[++i];
2206 /* Null-terminate the vector. */
2207 switches[n_switches].args[j] = 0;
2208 } else if (*switches_need_spaces != 0 && (c == 'o' || c == 'L')) {
2209 /* On some systems, ld cannot handle -o or -L without space.
2210 So split the -o or -L from its argument. */
2211 switches[n_switches].part1 = (c == 'o' ? "o" : "L");
2212 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2213 switches[n_switches].args[0] = xmalloc (strlen (p));
2214 strcpy (switches[n_switches].args[0], &p[1]);
2215 switches[n_switches].args[1] = 0;
2217 switches[n_switches].args = 0;
2218 switches[n_switches].valid = 0;
2219 /* This is always valid, since gcc.c itself understands it. */
2220 if (!strcmp (p, "save-temps"))
2221 switches[n_switches].valid = 1;
2226 infiles[n_infiles].language = spec_lang;
2227 infiles[n_infiles++].name = argv[i];
2231 if (n_infiles == last_language_n_infiles)
2232 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2234 switches[n_switches].part1 = 0;
2235 infiles[n_infiles].name = 0;
2237 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2238 if (gcc_exec_prefix)
2240 temp = (char *) xmalloc (strlen (gcc_exec_prefix) + strlen (spec_version)
2241 + strlen (spec_machine) + 3);
2242 strcpy (temp, gcc_exec_prefix);
2243 strcat (temp, spec_machine);
2245 strcat (temp, spec_version);
2247 gcc_exec_prefix = temp;
2251 /* Process a spec string, accumulating and running commands. */
2253 /* These variables describe the input file name.
2254 input_file_number is the index on outfiles of this file,
2255 so that the output file name can be stored for later use by %o.
2256 input_basename is the start of the part of the input file
2257 sans all directory names, and basename_length is the number
2258 of characters starting there excluding the suffix .c or whatever. */
2260 static char *input_filename;
2261 static int input_file_number;
2262 static int input_filename_length;
2263 static int basename_length;
2264 static char *input_basename;
2265 static char *input_suffix;
2267 /* These are variables used within do_spec and do_spec_1. */
2269 /* Nonzero if an arg has been started and not yet terminated
2270 (with space, tab or newline). */
2271 static int arg_going;
2273 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2274 is a temporary file name. */
2275 static int delete_this_arg;
2277 /* Nonzero means %w has been seen; the next arg to be terminated
2278 is the output file name of this compilation. */
2279 static int this_is_output_file;
2281 /* Nonzero means %s has been seen; the next arg to be terminated
2282 is the name of a library file and we should try the standard
2283 search dirs for it. */
2284 static int this_is_library_file;
2286 /* Process the spec SPEC and run the commands specified therein.
2287 Returns 0 if the spec is successfully processed; -1 if failed. */
2297 delete_this_arg = 0;
2298 this_is_output_file = 0;
2299 this_is_library_file = 0;
2301 value = do_spec_1 (spec, 0, NULL_PTR);
2303 /* Force out any unfinished command.
2304 If -pipe, this forces out the last command if it ended in `|'. */
2307 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2310 if (argbuf_index > 0)
2317 /* Process the sub-spec SPEC as a portion of a larger spec.
2318 This is like processing a whole spec except that we do
2319 not initialize at the beginning and we do not supply a
2320 newline by default at the end.
2321 INSWITCH nonzero means don't process %-sequences in SPEC;
2322 in this case, % is treated as an ordinary character.
2323 This is used while substituting switches.
2324 INSWITCH nonzero also causes SPC not to terminate an argument.
2326 Value is zero unless a line was finished
2327 and the command on that line reported an error. */
2330 do_spec_1 (spec, inswitch, soft_matched_part)
2333 char *soft_matched_part;
2335 register char *p = spec;
2341 /* If substituting a switch, treat all chars like letters.
2342 Otherwise, NL, SPC, TAB and % are special. */
2343 switch (inswitch ? 'a' : c)
2346 /* End of line: finish any pending argument,
2347 then run the pending command if one has been started. */
2350 obstack_1grow (&obstack, 0);
2351 string = obstack_finish (&obstack);
2352 if (this_is_library_file)
2353 string = find_file (string);
2354 store_arg (string, delete_this_arg, this_is_output_file);
2355 if (this_is_output_file)
2356 outfiles[input_file_number] = string;
2360 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2363 for (i = 0; i < n_switches; i++)
2364 if (!strcmp (switches[i].part1, "pipe"))
2367 /* A `|' before the newline means use a pipe here,
2368 but only if -pipe was specified.
2369 Otherwise, execute now and don't pass the `|' as an arg. */
2372 switches[i].valid = 1;
2379 if (argbuf_index > 0)
2381 int value = execute ();
2385 /* Reinitialize for a new command, and for a new argument. */
2388 delete_this_arg = 0;
2389 this_is_output_file = 0;
2390 this_is_library_file = 0;
2394 /* End any pending argument. */
2397 obstack_1grow (&obstack, 0);
2398 string = obstack_finish (&obstack);
2399 if (this_is_library_file)
2400 string = find_file (string);
2401 store_arg (string, delete_this_arg, this_is_output_file);
2402 if (this_is_output_file)
2403 outfiles[input_file_number] = string;
2407 obstack_1grow (&obstack, c);
2413 /* Space or tab ends an argument if one is pending. */
2416 obstack_1grow (&obstack, 0);
2417 string = obstack_finish (&obstack);
2418 if (this_is_library_file)
2419 string = find_file (string);
2420 store_arg (string, delete_this_arg, this_is_output_file);
2421 if (this_is_output_file)
2422 outfiles[input_file_number] = string;
2424 /* Reinitialize for a new argument. */
2426 delete_this_arg = 0;
2427 this_is_output_file = 0;
2428 this_is_library_file = 0;
2435 fatal ("Invalid specification! Bug in cc.");
2438 obstack_grow (&obstack, input_basename, basename_length);
2443 delete_this_arg = 2;
2446 /* Dump out the directories specified with LIBRARY_PATH,
2447 followed by the absolute directories
2448 that we search for startfiles. */
2450 for (i = 0; i < 2; i++)
2452 struct prefix_list *pl
2453 = (i == 0 ? library_prefix.plist : startfile_prefix.plist);
2455 char *buffer = (char *) xmalloc (bufsize);
2458 for (; pl; pl = pl->next)
2460 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2461 /* Used on systems which record the specified -L dirs
2462 and use them to search for dynamic linking. */
2463 /* Relative directories always come from -B,
2464 and it is better not to use them for searching
2465 at run time. In particular, stage1 loses */
2466 if (pl->prefix[0] != '/')
2471 if (is_linker_dir (pl->prefix, machine_suffix))
2473 do_spec_1 ("-L", 0, NULL_PTR);
2474 #ifdef SPACE_AFTER_L_OPTION
2475 do_spec_1 (" ", 0, NULL_PTR);
2477 do_spec_1 (pl->prefix, 1, NULL_PTR);
2478 /* Remove slash from machine_suffix. */
2479 if (strlen (machine_suffix) >= bufsize)
2480 bufsize = strlen (machine_suffix) * 2 + 1;
2481 buffer = (char *) xrealloc (buffer, bufsize);
2482 strcpy (buffer, machine_suffix);
2483 idx = strlen (buffer);
2484 if (buffer[idx - 1] == '/')
2485 buffer[idx - 1] = 0;
2486 do_spec_1 (buffer, 1, NULL_PTR);
2487 /* Make this a separate argument. */
2488 do_spec_1 (" ", 0, NULL_PTR);
2491 if (!pl->require_machine_suffix)
2493 if (is_linker_dir (pl->prefix, ""))
2495 do_spec_1 ("-L", 0, NULL_PTR);
2496 #ifdef SPACE_AFTER_L_OPTION
2497 do_spec_1 (" ", 0, NULL_PTR);
2499 /* Remove slash from pl->prefix. */
2500 if (strlen (pl->prefix) >= bufsize)
2501 bufsize = strlen (pl->prefix) * 2 + 1;
2502 buffer = (char *) xrealloc (buffer, bufsize);
2503 strcpy (buffer, pl->prefix);
2504 idx = strlen (buffer);
2505 if (buffer[idx - 1] == '/')
2506 buffer[idx - 1] = 0;
2507 do_spec_1 (buffer, 1, NULL_PTR);
2508 /* Make this a separate argument. */
2509 do_spec_1 (" ", 0, NULL_PTR);
2518 /* {...:%efoo} means report an error with `foo' as error message
2519 and don't execute any more commands for this file. */
2523 while (*p != 0 && *p != '\n') p++;
2524 buf = (char *) alloca (p - q + 1);
2525 strncpy (buf, q, p - q);
2535 if (save_temps_flag)
2536 obstack_grow (&obstack, input_basename, basename_length);
2539 #ifdef MKTEMP_EACH_FILE /* ??? This has a problem: the total number of
2540 values mktemp can return is limited.
2541 That matters for the names of object files.
2542 In 2.4, do something about that. */
2543 /* Choose a new temp_filename, but get rid of the
2544 suffix that the spec wants to add to it. */
2545 choose_temp_base ();
2546 while (*p == '.' || isalpha (*p))
2548 obstack_grow (&obstack, temp_filename, temp_filename_length);
2549 delete_this_arg = 1;
2551 obstack_grow (&obstack, temp_filename, temp_filename_length);
2552 if (c == 'u' || c == 'U')
2558 sprintf (buff, "%d", unique);
2559 obstack_grow (&obstack, buff, strlen (buff));
2562 delete_this_arg = 1;
2568 obstack_grow (&obstack, input_filename, input_filename_length);
2573 if (gcc_exec_prefix)
2575 do_spec_1 ("-iprefix", 1, NULL_PTR);
2576 /* Make this a separate argument. */
2577 do_spec_1 (" ", 0, NULL_PTR);
2578 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
2579 do_spec_1 (" ", 0, NULL_PTR);
2586 for (f = 0; f < n_infiles; f++)
2587 store_arg (outfiles[f], 0, 0);
2592 this_is_library_file = 1;
2596 this_is_output_file = 1;
2601 int index = argbuf_index;
2602 /* Handle the {...} following the %W. */
2605 p = handle_braces (p + 1);
2608 /* If any args were output, mark the last one for deletion
2610 if (argbuf_index != index)
2611 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
2615 /* %x{OPTION} records OPTION for %X to output. */
2621 /* Skip past the option value and make a copy. */
2626 string = save_string (p1 + 1, p - p1 - 2);
2628 /* See if we already recorded this option. */
2629 for (i = 0; i < n_linker_options; i++)
2630 if (! strcmp (string, linker_options[i]))
2636 /* This option is new; add it. */
2638 if (!linker_options)
2640 = (char **) xmalloc (n_linker_options * sizeof (char **));
2643 = (char **) xrealloc (linker_options,
2644 n_linker_options * sizeof (char **));
2646 linker_options[n_linker_options - 1] = string;
2650 /* Dump out the options accumulated previously using %x,
2651 -Xlinker and -Wl,. */
2653 for (i = 0; i < n_linker_options; i++)
2655 do_spec_1 (linker_options[i], 1, NULL_PTR);
2656 /* Make each accumulated option a separate argument. */
2657 do_spec_1 (" ", 0, NULL_PTR);
2661 /* Dump out the options accumulated previously using -Wa,. */
2663 for (i = 0; i < n_assembler_options; i++)
2665 do_spec_1 (assembler_options[i], 1, NULL_PTR);
2666 /* Make each accumulated option a separate argument. */
2667 do_spec_1 (" ", 0, NULL_PTR);
2671 /* Here are digits and numbers that just process
2672 a certain constant string as a spec.
2673 /* Here are digits and numbers that just process
2674 a certain constant string as a spec. */
2677 do_spec_1 (cc1_spec, 0, NULL_PTR);
2681 do_spec_1 (cc1plus_spec, 0, NULL_PTR);
2685 do_spec_1 (asm_spec, 0, NULL_PTR);
2689 do_spec_1 (asm_final_spec, 0, NULL_PTR);
2693 do_spec_1 (signed_char_spec, 0, NULL_PTR);
2697 do_spec_1 (cpp_spec, 0, NULL_PTR);
2701 do_spec_1 (endfile_spec, 0, NULL_PTR);
2705 do_spec_1 (link_spec, 0, NULL_PTR);
2709 do_spec_1 (lib_spec, 0, NULL_PTR);
2714 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
2718 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
2722 if (! strncmp (y, "-D", 2))
2723 /* Copy the whole option. */
2724 while (*y && *y != ' ' && *y != '\t')
2726 else if (*y == ' ' || *y == '\t')
2727 /* Copy whitespace to the result. */
2729 /* Don't copy other options. */
2736 do_spec_1 (buf, 0, NULL_PTR);
2742 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
2746 /* Copy all of CPP_PREDEFINES into BUF,
2747 but put __ after every -D and at the end of each arg. */
2751 if (! strncmp (y, "-D", 2))
2758 if (strncmp (y, "__", 2))
2760 /* Stick __ at front of macro name. */
2763 /* Arrange to stick __ at the end as well. */
2767 /* Copy the macro name. */
2768 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2777 /* Copy the value given, if any. */
2778 while (*y && *y != ' ' && *y != '\t')
2781 else if (*y == ' ' || *y == '\t')
2782 /* Copy whitespace to the result. */
2784 /* Don't copy -A options */
2790 /* Copy all of CPP_PREDEFINES into BUF,
2791 but put __ after every -D. */
2795 if (! strncmp (y, "-D", 2))
2800 if (strncmp (y, "__", 2))
2802 /* Stick __ at front of macro name. */
2807 /* Copy the macro name. */
2808 while (*y && *y != '=' && *y != ' ' && *y != '\t')
2811 /* Copy the value given, if any. */
2812 while (*y && *y != ' ' && *y != '\t')
2815 else if (*y == ' ' || *y == '\t')
2816 /* Copy whitespace to the result. */
2818 /* Don't copy -A options */
2824 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
2828 if (! strncmp (y, "-A", 2))
2829 /* Copy the whole option. */
2830 while (*y && *y != ' ' && *y != '\t')
2832 else if (*y == ' ' || *y == '\t')
2833 /* Copy whitespace to the result. */
2835 /* Don't copy other options. */
2842 do_spec_1 (buf, 0, NULL_PTR);
2847 do_spec_1 (startfile_spec, 0, NULL_PTR);
2850 /* Here we define characters other than letters and digits. */
2853 p = handle_braces (p);
2859 obstack_1grow (&obstack, '%');
2863 do_spec_1 (soft_matched_part, 1, NULL_PTR);
2864 do_spec_1 (" ", 0, NULL_PTR);
2867 /* Process a string found as the value of a spec given by name.
2868 This feature allows individual machine descriptions
2869 to add and use their own specs.
2870 %[...] modifies -D options the way %P does;
2871 %(...) uses the spec unmodified. */
2876 struct spec_list *sl;
2879 /* The string after the S/P is the name of a spec that is to be
2881 while (*p && *p != ')' && *p != ']')
2884 /* See if it's in the list */
2885 for (len = p - name, sl = specs; sl; sl = sl->next)
2886 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
2895 do_spec_1 (name, 0, NULL_PTR);
2898 char *x = (char *) alloca (strlen (name) * 2 + 1);
2902 /* Copy all of NAME into BUF, but put __ after
2903 every -D and at the end of each arg, */
2906 if (! strncmp (y, "-D", 2))
2914 else if (*y == ' ' || *y == 0)
2928 do_spec_1 (buf, 0, NULL_PTR);
2932 /* Discard the closing paren or bracket. */
2944 /* Backslash: treat next character as ordinary. */
2949 /* Ordinary character: put it into the current argument. */
2950 obstack_1grow (&obstack, c);
2954 return 0; /* End of string */
2957 /* Return 0 if we call do_spec_1 and that returns -1. */
2970 /* A `|' after the open-brace means,
2971 if the test fails, output a single minus sign rather than nothing.
2972 This is used in %{|!pipe:...}. */
2976 /* A `!' after the open-brace negates the condition:
2977 succeed if the specified switch is not present. */
2981 /* A `.' after the open-brace means test against the current suffix. */
2991 while (*p != ':' && *p != '}') p++;
2994 register int count = 1;
3012 int found = (input_suffix != 0
3013 && strlen (input_suffix) == p - filter
3014 && strncmp (input_suffix, filter, p - filter) == 0);
3020 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3025 else if (p[-1] == '*' && p[0] == '}')
3027 /* Substitute all matching switches as separate args. */
3030 for (i = 0; i < n_switches; i++)
3031 if (!strncmp (switches[i].part1, filter, p - filter))
3036 /* Test for presence of the specified switch. */
3040 /* If name specified ends in *, as in {x*:...},
3041 check for %* and handle that case. */
3042 if (p[-1] == '*' && !negate)
3047 /* First see whether we have %*. */
3051 if (*r == '%' && r[1] == '*')
3055 /* If we do, handle that case. */
3058 /* Substitute all matching switches as separate args.
3059 But do this by substituting for %*
3060 in the text that follows the colon. */
3062 unsigned hard_match_len = p - filter - 1;
3063 char *string = save_string (p + 1, q - p - 2);
3065 for (i = 0; i < n_switches; i++)
3066 if (!strncmp (switches[i].part1, filter, hard_match_len))
3068 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3069 /* Pass any arguments this switch has. */
3077 /* If name specified ends in *, as in {x*:...},
3078 check for presence of any switch name starting with x. */
3081 for (i = 0; i < n_switches; i++)
3083 unsigned hard_match_len = p - filter - 1;
3085 if (!strncmp (switches[i].part1, filter, hard_match_len))
3087 switches[i].valid = 1;
3092 /* Otherwise, check for presence of exact name specified. */
3095 for (i = 0; i < n_switches; i++)
3097 if (!strncmp (switches[i].part1, filter, p - filter)
3098 && switches[i].part1[p - filter] == 0)
3100 switches[i].valid = 1;
3107 /* If it is as desired (present for %{s...}, absent for %{-s...})
3108 then substitute either the switch or the specified
3109 conditional text. */
3110 if (present != negate)
3118 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3124 /* Here if a %{|...} conditional fails: output a minus sign,
3125 which means "standard output" or "standard input". */
3126 do_spec_1 ("-", 0, NULL_PTR);
3133 /* Pass a switch to the current accumulating command
3134 in the same form that we received it.
3135 SWITCHNUM identifies the switch; it is an index into
3136 the vector of switches gcc received, which is `switches'.
3137 This cannot fail since it never finishes a command line.
3139 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3142 give_switch (switchnum, omit_first_word)
3144 int omit_first_word;
3146 if (!omit_first_word)
3148 do_spec_1 ("-", 0, NULL_PTR);
3149 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3151 do_spec_1 (" ", 0, NULL_PTR);
3152 if (switches[switchnum].args != 0)
3155 for (p = switches[switchnum].args; *p; p++)
3157 do_spec_1 (*p, 1, NULL_PTR);
3158 do_spec_1 (" ", 0, NULL_PTR);
3161 switches[switchnum].valid = 1;
3164 /* Search for a file named NAME trying various prefixes including the
3165 user's -B prefix and some standard ones.
3166 Return the absolute file name found. If nothing is found, return NAME. */
3174 newname = find_a_file (&startfile_prefix, name, R_OK);
3175 return newname ? newname : name;
3178 /* Determine whether a -L option is relevant. Not required for certain
3179 fixed names and for directories that don't exist. */
3182 is_linker_dir (path1, path2)
3186 int len1 = strlen (path1);
3187 int len2 = strlen (path2);
3188 char *path = (char *) alloca (3 + len1 + len2);
3192 /* Construct the path from the two parts. Ensure the string ends with "/.".
3193 The resulting path will be a directory even if the given path is a
3195 bcopy (path1, path, len1);
3196 bcopy (path2, path + len1, len2);
3197 cp = path + len1 + len2;
3203 /* Exclude directories that the linker is known to search. */
3204 if ((cp - path == 6 && strcmp (path, "/lib/.") == 0)
3205 || (cp - path == 10 && strcmp (path, "/usr/lib/.") == 0))
3208 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3211 /* On fatal signals, delete all the temporary files. */
3214 fatal_error (signum)
3217 signal (signum, SIG_DFL);
3218 delete_failure_queue ();
3219 delete_temp_files ();
3220 /* Get the same signal again, this time not handled,
3221 so its normal effect occurs. */
3222 kill (getpid (), signum);
3233 int error_count = 0;
3234 int linker_was_run = 0;
3235 char *explicit_link_files;
3238 programname = argv[0];
3240 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
3241 signal (SIGINT, fatal_error);
3242 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
3243 signal (SIGHUP, fatal_error);
3244 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
3245 signal (SIGTERM, fatal_error);
3247 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
3248 signal (SIGPIPE, fatal_error);
3252 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
3254 obstack_init (&obstack);
3256 /* Set up to remember the pathname of gcc and any options
3257 needed for collect. */
3258 obstack_init (&collect_obstack);
3259 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3260 obstack_grow (&collect_obstack, programname, strlen (programname)+1);
3261 putenv (obstack_finish (&collect_obstack));
3263 /* Choose directory for temp files. */
3265 choose_temp_base ();
3267 /* Make a table of what switches there are (switches, n_switches).
3268 Make a table of specified input files (infiles, n_infiles).
3269 Decode switches that are handled locally. */
3271 process_command (argc, argv);
3273 /* Initialize the vector of specs to just the default.
3274 This means one element containing 0s, as a terminator. */
3276 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
3277 bcopy (default_compilers, compilers, sizeof default_compilers);
3278 n_compilers = n_default_compilers;
3280 /* Read specs from a file if there is one. */
3282 machine_suffix = concat (spec_machine, "/", concat (spec_version, "/", ""));
3283 just_machine_suffix = concat (spec_machine, "/", "");
3285 specs_file = find_a_file (&startfile_prefix, "specs", R_OK);
3286 /* Read the specs file unless it is a default one. */
3287 if (specs_file != 0 && strcmp (specs_file, "specs"))
3288 read_specs (specs_file);
3290 /* If not cross-compiling, look for startfiles in the standard places. */
3291 /* The fact that these are done here, after reading the specs file,
3292 means that it cannot be found in these directories.
3293 But that's okay. It should never be there anyway. */
3296 #ifdef MD_EXEC_PREFIX
3297 add_prefix (&exec_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3298 add_prefix (&startfile_prefix, md_exec_prefix, 0, 0, NULL_PTR);
3301 #ifdef MD_STARTFILE_PREFIX
3302 add_prefix (&startfile_prefix, md_startfile_prefix, 0, 0, NULL_PTR);
3305 #ifdef MD_STARTFILE_PREFIX_1
3306 add_prefix (&startfile_prefix, md_startfile_prefix_1, 0, 0, NULL_PTR);
3309 add_prefix (&startfile_prefix, standard_startfile_prefix, 0, 0,
3311 add_prefix (&startfile_prefix, standard_startfile_prefix_1, 0, 0,
3313 add_prefix (&startfile_prefix, standard_startfile_prefix_2, 0, 0,
3315 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3316 add_prefix (&startfile_prefix, "./", 0, 1, NULL_PTR);
3320 /* Now we have the specs.
3321 Set the `valid' bits for switches that match anything in any spec. */
3323 validate_all_switches ();
3325 /* Warn about any switches that no pass was interested in. */
3327 for (i = 0; i < n_switches; i++)
3328 if (! switches[i].valid)
3329 error ("unrecognized option `-%s'", switches[i].part1);
3331 if (print_libgcc_file_name)
3333 printf ("%s\n", find_file ("libgcc.a"));
3337 /* Obey some of the options. */
3341 fprintf (stderr, "gcc version %s\n", version_string);
3347 fatal ("No input files specified.");
3349 /* Make a place to record the compiler output file names
3350 that correspond to the input files. */
3352 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
3353 bzero (outfiles, n_infiles * sizeof (char *));
3355 /* Record which files were specified explicitly as link input. */
3357 explicit_link_files = xmalloc (n_infiles);
3358 bzero (explicit_link_files, n_infiles);
3360 for (i = 0; i < n_infiles; i++)
3362 register struct compiler *cp = 0;
3363 int this_file_error = 0;
3365 /* Tell do_spec what to substitute for %i. */
3367 input_filename = infiles[i].name;
3368 input_filename_length = strlen (input_filename);
3369 input_file_number = i;
3371 /* Use the same thing in %o, unless cp->spec says otherwise. */
3373 outfiles[i] = input_filename;
3375 /* Figure out which compiler from the file's suffix. */
3377 cp = lookup_compiler (infiles[i].name, input_filename_length,
3378 infiles[i].language);
3382 /* Ok, we found an applicable compiler. Run its spec. */
3383 /* First say how much of input_filename to substitute for %b */
3387 input_basename = input_filename;
3388 for (p = input_filename; *p; p++)
3390 input_basename = p + 1;
3392 /* Find a suffix starting with the last period,
3393 and set basename_length to exclude that suffix. */
3394 basename_length = strlen (input_basename);
3395 p = input_basename + basename_length;
3396 while (p != input_basename && *p != '.') --p;
3397 if (*p == '.' && p != input_basename)
3399 basename_length = p - input_basename;
3400 input_suffix = p + 1;
3406 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3408 len += strlen (cp->spec[j]);
3410 p = (char *) xmalloc (len + 1);
3413 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
3416 strcpy (p + len, cp->spec[j]);
3417 len += strlen (cp->spec[j]);
3420 value = do_spec (p);
3423 this_file_error = 1;
3426 /* If this file's name does not contain a recognized suffix,
3427 record it as explicit linker input. */
3430 explicit_link_files[i] = 1;
3432 /* Clear the delete-on-failure queue, deleting the files in it
3433 if this compilation failed. */
3435 if (this_file_error)
3437 delete_failure_queue ();
3440 /* If this compilation succeeded, don't delete those files later. */
3441 clear_failure_queue ();
3444 /* Run ld to link all the compiler output files. */
3446 if (error_count == 0)
3448 int tmp = execution_count;
3452 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
3454 putenv_from_prefixes (&exec_prefix, "COMPILER_PATH=");
3455 putenv_from_prefixes (&startfile_prefix, "LIBRARY_PATH=");
3457 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3459 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
3460 sizeof ("COLLECT_GCC_OPTIONS=")-1);
3463 for (i = 0; i < n_switches; i++)
3467 obstack_grow (&collect_obstack, " ", 1);
3470 obstack_grow (&collect_obstack, "-", 1);
3471 obstack_grow (&collect_obstack, switches[i].part1,
3472 strlen (switches[i].part1));
3474 for (args = switches[i].args; args && *args; args++)
3476 obstack_grow (&collect_obstack, " ", 1);
3477 obstack_grow (&collect_obstack, *args, strlen (*args));
3480 obstack_grow (&collect_obstack, "\0", 1);
3481 putenv (obstack_finish (&collect_obstack));
3483 value = do_spec (link_command_spec);
3486 linker_was_run = (tmp != execution_count);
3489 /* Warn if a -B option was specified but the prefix was never used. */
3490 unused_prefix_warnings (&exec_prefix);
3491 unused_prefix_warnings (&startfile_prefix);
3493 /* If options said don't run linker,
3494 complain about input files to be given to the linker. */
3496 if (! linker_was_run && error_count == 0)
3497 for (i = 0; i < n_infiles; i++)
3498 if (explicit_link_files[i])
3499 error ("%s: linker input file unused since linking not done",
3502 /* Delete some or all of the temporary files we made. */
3505 delete_failure_queue ();
3506 delete_temp_files ();
3508 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
3513 /* Find the proper compilation spec for the file name NAME,
3514 whose length is LENGTH. LANGUAGE is the specified language,
3515 or 0 if none specified. */
3517 static struct compiler *
3518 lookup_compiler (name, length, language)
3523 struct compiler *cp;
3525 /* Look for the language, if one is spec'd. */
3528 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3532 if (cp->suffix[0] == '@'
3533 && !strcmp (cp->suffix + 1, language))
3537 error ("language %s not recognized", language);
3540 /* Look for a suffix. */
3541 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
3543 if (strlen (cp->suffix) < length
3544 /* See if the suffix matches the end of NAME. */
3545 && !strcmp (cp->suffix,
3546 name + length - strlen (cp->suffix))
3547 /* The suffix `-' matches only the file name `-'. */
3548 && !(!strcmp (cp->suffix, "-") && length != 1))
3550 if (cp->spec[0][0] == '@')
3552 struct compiler *new;
3553 /* An alias entry maps a suffix to a language.
3554 Search for the language; pass 0 for NAME and LENGTH
3555 to avoid infinite recursion if language not found.
3556 Construct the new compiler spec. */
3557 language = cp->spec[0] + 1;
3558 new = (struct compiler *) xmalloc (sizeof (struct compiler));
3559 new->suffix = cp->suffix;
3560 bcopy (lookup_compiler (NULL_PTR, 0, language)->spec,
3561 new->spec, sizeof new->spec);
3564 /* A non-alias entry: return it. */
3576 register char *value = (char *) malloc (size);
3578 fatal ("virtual memory exhausted");
3583 xrealloc (ptr, size)
3587 register char *value = (char *) realloc (ptr, size);
3589 fatal ("virtual memory exhausted");
3593 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
3599 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
3600 char *result = xmalloc (len1 + len2 + len3 + 1);
3602 strcpy (result, s1);
3603 strcpy (result + len1, s2);
3604 strcpy (result + len1 + len2, s3);
3605 *(result + len1 + len2 + len3) = 0;
3611 save_string (s, len)
3615 register char *result = xmalloc (len + 1);
3617 bcopy (s, result, len);
3623 pfatal_with_name (name)
3628 if (errno < sys_nerr)
3629 s = concat ("%s: ", sys_errlist[errno], "");
3631 s = "cannot open %s";
3636 perror_with_name (name)
3641 if (errno < sys_nerr)
3642 s = concat ("%s: ", sys_errlist[errno], "");
3644 s = "cannot open %s";
3654 if (errno < sys_nerr)
3655 s = concat ("installation problem, cannot exec %s: ",
3656 sys_errlist[errno], "");
3658 s = "installation problem, cannot exec %s";
3662 /* More 'friendly' abort that prints the line and file.
3663 config.h can #define abort fancy_abort if you like that sort of thing. */
3668 fatal ("Internal gcc abort.");
3673 /* Output an error message and exit */
3683 format = va_arg (ap, char *);
3684 fprintf (stderr, "%s: ", programname);
3685 vfprintf (stderr, format, ap);
3687 fprintf (stderr, "\n");
3688 delete_temp_files ();
3700 format = va_arg (ap, char *);
3701 fprintf (stderr, "%s: ", programname);
3702 vfprintf (stderr, format, ap);
3705 fprintf (stderr, "\n");
3708 #else /* not HAVE_VPRINTF */
3711 fatal (msg, arg1, arg2)
3712 char *msg, *arg1, *arg2;
3714 error (msg, arg1, arg2);
3715 delete_temp_files ();
3720 error (msg, arg1, arg2)
3721 char *msg, *arg1, *arg2;
3723 fprintf (stderr, "%s: ", programname);
3724 fprintf (stderr, msg, arg1, arg2);
3725 fprintf (stderr, "\n");
3728 #endif /* not HAVE_VPRINTF */
3732 validate_all_switches ()
3734 struct compiler *comp;
3737 struct spec_list *spec;
3739 for (comp = compilers; comp->spec[0]; comp++)
3742 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
3746 if (c == '%' && *p == '{')
3747 /* We have a switch spec. */
3748 validate_switches (p + 1);
3752 /* look through the linked list of extra specs read from the specs file */
3753 for (spec = specs; spec ; spec = spec->next)
3757 if (c == '%' && *p == '{')
3758 /* We have a switch spec. */
3759 validate_switches (p + 1);
3762 p = link_command_spec;
3764 if (c == '%' && *p == '{')
3765 /* We have a switch spec. */
3766 validate_switches (p + 1);
3768 /* Now notice switches mentioned in the machine-specific specs. */
3772 if (c == '%' && *p == '{')
3773 /* We have a switch spec. */
3774 validate_switches (p + 1);
3778 if (c == '%' && *p == '{')
3779 /* We have a switch spec. */
3780 validate_switches (p + 1);
3784 if (c == '%' && *p == '{')
3785 /* We have a switch spec. */
3786 validate_switches (p + 1);
3788 p = signed_char_spec;
3790 if (c == '%' && *p == '{')
3791 /* We have a switch spec. */
3792 validate_switches (p + 1);
3796 if (c == '%' && *p == '{')
3797 /* We have a switch spec. */
3798 validate_switches (p + 1);
3802 if (c == '%' && *p == '{')
3803 /* We have a switch spec. */
3804 validate_switches (p + 1);
3808 if (c == '%' && *p == '{')
3809 /* We have a switch spec. */
3810 validate_switches (p + 1);
3814 if (c == '%' && *p == '{')
3815 /* We have a switch spec. */
3816 validate_switches (p + 1);
3820 if (c == '%' && *p == '{')
3821 /* We have a switch spec. */
3822 validate_switches (p + 1);
3825 /* Look at the switch-name that comes after START
3826 and mark as valid all supplied switches that match it. */
3829 validate_switches (start)
3832 register char *p = start;
3847 while (*p != ':' && *p != '}') p++;
3851 else if (p[-1] == '*')
3853 /* Mark all matching switches as valid. */
3855 for (i = 0; i < n_switches; i++)
3856 if (!strncmp (switches[i].part1, filter, p - filter))
3857 switches[i].valid = 1;
3861 /* Mark an exact matching switch as valid. */
3862 for (i = 0; i < n_switches; i++)
3864 if (!strncmp (switches[i].part1, filter, p - filter)
3865 && switches[i].part1[p - filter] == 0)
3866 switches[i].valid = 1;