1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 This paragraph is here to try to keep Sun CC from dying.
21 The number of chars here seems crucial!!!! */
23 /* This program is the user interface to the C compiler and possibly to
24 other compilers. It is used because compilation is a complicated procedure
25 which involves running several programs and passing temporary files between
26 them, forwarding the users switches to those programs selectively,
27 and deleting the temporary files at the end.
29 CC recognizes how to compile each input file by suffixes in the file names.
30 Once it knows which kind of compilation to perform, the procedure for
31 compilation is specified by a string called a "spec". */
33 #include <sys/types.h>
37 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Add prototype support. */
56 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
57 #define PROTO(ARGS) ARGS
59 #define PROTO(ARGS) ()
65 #define PVPROTO(ARGS) ARGS
66 #define VPROTO(ARGS) ARGS
67 #define VA_START(va_list,var) va_start(va_list,var)
69 #define PVPROTO(ARGS) ()
70 #define VPROTO(ARGS) (va_alist) va_dcl
71 #define VA_START(va_list,var) va_start(va_list)
75 /* Define a generic NULL if one hasn't already been defined. */
82 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
83 #define GENERIC_PTR void *
85 #define GENERIC_PTR char *
90 #define NULL_PTR ((GENERIC_PTR)0)
97 /* On MSDOS, write temp files in current dir
98 because there's no place else we can expect to use. */
105 /* Test if something is a normal file. */
107 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
110 /* Test if something is a directory. */
112 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
115 /* By default there is no special suffix for executables. */
116 #ifndef EXECUTABLE_SUFFIX
117 #define EXECUTABLE_SUFFIX ""
120 /* By default, colon separates directories in a path. */
121 #ifndef PATH_SEPARATOR
122 #define PATH_SEPARATOR ':'
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
129 extern char *getenv ();
131 extern int errno
, sys_nerr
;
133 extern const char *const sys_errlist
[];
135 extern char *sys_errlist
[];
138 extern int execv (), execvp ();
140 /* If a stage of compilation returns an exit status >= 1,
141 compilation of that file ceases. */
143 #define MIN_FATAL_STATUS 1
145 /* Flag saying to print the full filename of this file
146 as found through our usual search mechanism. */
148 static char *print_file_name
= NULL
;
150 /* As print_file_name, but search for executable file. */
152 static char *print_prog_name
= NULL
;
154 /* Flag indicating whether we should print the command and arguments */
156 static int verbose_flag
;
158 /* Nonzero means write "temp" files in source directory
159 and use the source file's name in them, and don't delete them. */
161 static int save_temps_flag
;
163 /* The compiler version. */
165 static char *compiler_version
;
167 /* The target version specified with -V */
169 static char *spec_version
= DEFAULT_TARGET_VERSION
;
171 /* The target machine specified with -b. */
173 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
175 /* Nonzero if cross-compiling.
176 When -b is used, the value comes from the `specs' file. */
179 static int cross_compile
= 1;
181 static int cross_compile
= 0;
184 /* The number of errors that have occurred; the link phase will not be
185 run if this is non-zero. */
186 static int error_count
= 0;
188 /* This is the obstack which we use to allocate many strings. */
190 static struct obstack obstack
;
192 /* This is the obstack to build an environment variable to pass to
193 collect2 that describes all of the relevant switches of what to
194 pass the compiler in building the list of pointers to constructors
197 static struct obstack collect_obstack
;
199 extern char *version_string
;
201 /* Forward declaration for prototypes. */
204 static void set_spec
PROTO((char *, char *));
205 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
206 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
207 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
208 static char *skip_whitespace
PROTO((char *));
209 static void record_temp_file
PROTO((char *, int, int));
210 static void delete_if_ordinary
PROTO((char *));
211 static void delete_temp_files
PROTO((void));
212 static void delete_failure_queue
PROTO((void));
213 static void clear_failure_queue
PROTO((void));
214 static char *choose_temp_base_try
PROTO((char *, char *));
215 static void choose_temp_base
PROTO((void));
216 static int check_live_switch
PROTO((int, int));
217 static char *handle_braces
PROTO((char *));
218 static char *save_string
PROTO((char *, int));
219 static char *concat
PROTO((char *, char *, char *));
220 static int do_spec
PROTO((char *));
221 static int do_spec_1
PROTO((char *, int, char *));
222 static char *find_file
PROTO((char *));
223 static int is_directory
PROTO((char *, char *, int));
224 static void validate_switches
PROTO((char *));
225 static void validate_all_switches
PROTO((void));
226 static void give_switch
PROTO((int, int));
227 static void pfatal_with_name
PROTO((char *));
228 static void perror_with_name
PROTO((char *));
229 static void perror_exec
PROTO((char *));
231 static void fatal
PVPROTO((char *, ...));
232 static void error
PVPROTO((char *, ...));
234 /* We must not provide any prototype here, even if ANSI C. */
235 static void fatal
PROTO(());
236 static void error
PROTO(());
243 /* Specs are strings containing lines, each of which (if not blank)
244 is made up of a program name, and arguments separated by spaces.
245 The program name must be exact and start from root, since no path
246 is searched and it is unreliable to depend on the current working directory.
247 Redirection of input or output is not supported; the subprograms must
248 accept filenames saying what files to read and write.
250 In addition, the specs can contain %-sequences to substitute variable text
251 or for conditional text. Here is a table of all defined %-sequences.
252 Note that spaces are not generated automatically around the results of
253 expanding these sequences; therefore, you can concatenate them together
254 or with constant text in a single argument.
256 %% substitute one % into the program name or argument.
257 %i substitute the name of the input file being processed.
258 %b substitute the basename of the input file being processed.
259 This is the substring up to (and not including) the last period
260 and not including the directory.
261 %g substitute the temporary-file-name-base. This is a string chosen
262 once per compilation. Different temporary file names are made by
263 concatenation of constant strings on the end, as in `%g.s'.
264 %g also has the same effect of %d.
265 %u like %g, but make the temporary file name unique.
266 %U returns the last file name generated with %u.
267 %d marks the argument containing or following the %d as a
268 temporary file name, so that that file will be deleted if CC exits
269 successfully. Unlike %g, this contributes no text to the argument.
270 %w marks the argument containing or following the %w as the
271 "output file" of this compilation. This puts the argument
272 into the sequence of arguments that %o will substitute later.
274 like %{...} but mark last argument supplied within
275 as a file to be deleted on failure.
276 %o substitutes the names of all the output files, with spaces
277 automatically placed around them. You should write spaces
278 around the %o as well or the results are undefined.
279 %o is for use in the specs for running the linker.
280 Input files whose names have no recognized suffix are not compiled
281 at all, but they are included among the output files, so they will
283 %p substitutes the standard macro predefinitions for the
284 current target machine. Use this when running cpp.
285 %P like %p, but puts `__' before and after the name of each macro.
286 (Except macros that already have __.)
288 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
289 %s current argument is the name of a library or startup file of some sort.
290 Search for that file in a standard list of directories
291 and substitute the full name found.
292 %eSTR Print STR as an error message. STR is terminated by a newline.
293 Use this when inconsistent options are detected.
294 %x{OPTION} Accumulate an option for %X.
295 %X Output the accumulated linker options specified by compilations.
296 %Y Output the accumulated assembler options specified by compilations.
297 %v1 Substitute the major version number of GCC.
298 (For version 2.5.n, this is 2.)
299 %v2 Substitute the minor version number of GCC.
300 (For version 2.5.n, this is 5.)
301 %a process ASM_SPEC as a spec.
302 This allows config.h to specify part of the spec for running as.
303 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
304 used here. This can be used to run a post-processor after the
305 assembler has done it's job.
306 %D Dump out a -L option for each directory in startfile_prefix.
307 %l process LINK_SPEC as a spec.
308 %L process LIB_SPEC as a spec.
309 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
310 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
311 %c process SIGNED_CHAR_SPEC as a spec.
312 %C process CPP_SPEC as a spec. A capital C is actually used here.
313 %1 process CC1_SPEC as a spec.
314 %2 process CC1PLUS_SPEC as a spec.
315 %| output "-" if the input for the current command is coming from a pipe.
316 %* substitute the variable part of a matched option. (See below.)
317 Note that each comma in the substituted string is replaced by
319 %{S} substitutes the -S switch, if that switch was given to CC.
320 If that switch was not specified, this substitutes nothing.
321 Here S is a metasyntactic variable.
322 %{S*} substitutes all the switches specified to CC whose names start
323 with -S. This is used for -o, -D, -I, etc; switches that take
324 arguments. CC considers `-o foo' as being one switch whose
325 name starts with `o'. %{o*} would substitute this text,
326 including the space; thus, two arguments would be generated.
327 %{S*:X} substitutes X if one or more switches whose names start with -S are
328 specified to CC. Note that the tail part of the -S option
329 (i.e. the part matched by the `*') will be substituted for each
330 occurrence of %* within X.
331 %{S:X} substitutes X, but only if the -S switch was given to CC.
332 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
333 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
334 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
335 %{.S:X} substitutes X, but only if processing a file with suffix S.
336 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
337 %(Spec) processes a specification defined in a specs file as *Spec:
338 %[Spec] as above, but put __ around -D arguments
340 The conditional text X in a %{S:X} or %{!S:X} construct may contain
341 other nested % constructs or spaces, or even newlines. They are
342 processed as usual, as described above.
344 The -O, -f, -m, and -W switches are handled specifically in these
345 constructs. If another value of -O or the negated form of a -f, -m, or
346 -W switch is found later in the command line, the earlier switch
347 value is ignored, except with {S*} where S is just one letter; this
348 passes all matching options.
350 The character | is used to indicate that a command should be piped to
351 the following command, but only if -pipe is specified.
353 Note that it is built into CC which switches take arguments and which
354 do not. You might think it would be useful to generalize this to
355 allow each compiler's spec to say which switches take arguments. But
356 this cannot be done in a consistent fashion. CC cannot even decide
357 which input files have been specified without knowing which switches
358 take arguments, and it must know which input files to compile in order
359 to tell which compilers to run.
361 CC also knows implicitly that arguments starting in `-l' are to be
362 treated as compiler output files, and passed to the linker in their
363 proper position among the other output files. */
365 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
367 /* config.h can define ASM_SPEC to provide extra args to the assembler
368 or extra switch-translations. */
373 /* config.h can define ASM_FINAL_SPEC to run a post processor after
374 the assembler has run. */
375 #ifndef ASM_FINAL_SPEC
376 #define ASM_FINAL_SPEC ""
379 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
380 or extra switch-translations. */
385 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
386 or extra switch-translations. */
391 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
392 or extra switch-translations. */
394 #define CC1PLUS_SPEC ""
397 /* config.h can define LINK_SPEC to provide extra args to the linker
398 or extra switch-translations. */
403 /* config.h can define LIB_SPEC to override the default libraries. */
405 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
408 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
409 #ifndef STARTFILE_SPEC
410 #define STARTFILE_SPEC \
411 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
414 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
415 Make the string nonempty to require spaces there. */
416 #ifndef SWITCHES_NEED_SPACES
417 #define SWITCHES_NEED_SPACES ""
420 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
422 #define ENDFILE_SPEC ""
425 /* This spec is used for telling cpp whether char is signed or not. */
426 #ifndef SIGNED_CHAR_SPEC
427 /* Use #if rather than ?:
428 because MIPS C compiler rejects like ?: in initializers. */
429 #if DEFAULT_SIGNED_CHAR
430 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
432 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
436 static char *cpp_spec
= CPP_SPEC
;
437 static char *cpp_predefines
= CPP_PREDEFINES
;
438 static char *cc1_spec
= CC1_SPEC
;
439 static char *cc1plus_spec
= CC1PLUS_SPEC
;
440 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
441 static char *asm_spec
= ASM_SPEC
;
442 static char *asm_final_spec
= ASM_FINAL_SPEC
;
443 static char *link_spec
= LINK_SPEC
;
444 static char *lib_spec
= LIB_SPEC
;
445 static char *endfile_spec
= ENDFILE_SPEC
;
446 static char *startfile_spec
= STARTFILE_SPEC
;
447 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
449 /* This defines which switch letters take arguments. */
451 #ifndef SWITCH_TAKES_ARG
452 #define SWITCH_TAKES_ARG(CHAR) \
453 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
454 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
455 || (CHAR) == 'I' || (CHAR) == 'm' \
456 || (CHAR) == 'L' || (CHAR) == 'A')
459 /* This defines which multi-letter switches take arguments. */
461 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
462 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
463 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
464 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
465 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
466 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore"))
468 #ifndef WORD_SWITCH_TAKES_ARG
469 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
472 /* Record the mapping from file suffixes for compilation specs. */
476 char *suffix
; /* Use this compiler for input files
477 whose names end in this suffix. */
479 char *spec
[4]; /* To use this compiler, concatenate these
480 specs and pass to do_spec. */
483 /* Pointer to a vector of `struct compiler' that gives the spec for
484 compiling a file, based on its suffix.
485 A file that does not end in any of these suffixes will be passed
486 unchanged to the loader and nothing else will be done to it.
488 An entry containing two 0s is used to terminate the vector.
490 If multiple entries match a file, the last matching one is used. */
492 static struct compiler
*compilers
;
494 /* Number of entries in `compilers', not counting the null terminator. */
496 static int n_compilers
;
498 /* The default list of file name suffixes and their compilation specs. */
500 static struct compiler default_compilers
[] =
504 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
505 %{C:%{!E:%eGNU C does not support -C without using -E}}\
506 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
507 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
508 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
509 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
510 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
511 %{traditional-cpp:-traditional}\
512 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
513 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
514 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
515 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
516 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
517 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
519 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
520 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
521 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
522 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
523 %{!pipe:%g.s} %A\n }}}}"},
525 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
526 %{C:%{!E:%eGNU C does not support -C without using -E}}\
527 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
528 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
529 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
530 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
531 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
532 %{traditional-cpp:-traditional}\
533 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
535 %{!E:%e-E required when input is from standard input}"},
536 {".m", "@objective-c"},
538 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
539 %{C:%{!E:%eGNU C does not support -C without using -E}}\
540 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d}\
541 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
542 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
543 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
544 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
545 %{traditional-cpp:-traditional}\
546 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
547 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
548 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
549 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
550 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
551 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
552 -lang-objc %{gen-decls} \
554 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
555 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
556 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
557 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
558 %{!pipe:%g.s} %A\n }}}}"},
561 "%{!E:%eCompilation of header file requested} \
562 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
563 %{C:%{!E:%eGNU C does not support -C without using -E}}\
564 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
565 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
566 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
567 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
568 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
569 %{traditional-cpp:-traditional}\
570 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
577 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
578 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
579 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} \
580 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
581 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
582 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
583 %{traditional-cpp:-traditional} %{trigraphs}\
584 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
585 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
586 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
587 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
588 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
589 %{traditional} %{v:-version} %{pg:-p} %{p}\
590 %{f*} %{+e*} %{aux-info*}\
591 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
592 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
593 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
594 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
595 %{!pipe:%g.s} %A\n }}}}"},
596 {".i", "@cpp-output"},
598 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
599 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
600 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
602 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
603 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
604 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
605 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
606 %{!pipe:%g.s} %A\n }}}}"},
607 {".ii", "@c++-cpp-output"},
609 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
610 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
611 %{traditional} %{v:-version} %{pg:-p} %{p}\
612 %{f*} %{+e*} %{aux-info*}\
613 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
614 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
615 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
616 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
617 %{!pipe:%g.s} %A\n }}}}"},
618 {".s", "@assembler"},
620 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
621 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 {".S", "@assembler-with-cpp"},
624 {"@assembler-with-cpp",
625 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
626 %{C:%{!E:%eGNU C does not support -C without using -E}}\
627 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{trigraphs} \
628 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
629 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
630 %{traditional-cpp:-traditional}\
631 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
632 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
633 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
634 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
635 %{!pipe:%g.s} %A\n }}}}"},
640 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
641 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
643 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
644 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
645 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
646 %{c:%W{o*}%{!o*:-o %w%b.o}}\
647 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
648 /* Mark end of table */
652 /* Number of elements in default_compilers, not counting the terminator. */
654 static int n_default_compilers
655 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
657 /* Here is the spec for running the linker, after compiling all files. */
659 /* -u* was put back because both BSD and SysV seem to support it. */
660 /* %{static:} simply prevents an error message if the target machine
661 doesn't handle -static. */
662 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
663 scripts which exist in user specified directories, or in standard
665 #ifdef LINK_LIBGCC_SPECIAL_1
666 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
667 static char *link_command_spec
= "\
669 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
670 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
671 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
672 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
674 #ifdef LINK_LIBGCC_SPECIAL
675 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
676 static char *link_command_spec
= "\
678 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
679 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
680 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
681 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
683 /* Use -L and have the linker do the search for -lgcc. */
684 static char *link_command_spec
= "\
686 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
687 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
688 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
689 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
693 /* A vector of options to give to the linker.
694 These options are accumulated by -Xlinker and -Wl,
695 and substituted into the linker command with %X. */
696 static int n_linker_options
;
697 static char **linker_options
;
699 /* A vector of options to give to the assembler.
700 These options are accumulated by -Wa,
701 and substituted into the assembler command with %X. */
702 static int n_assembler_options
;
703 static char **assembler_options
;
705 /* Define how to map long options into short ones. */
707 /* This structure describes one mapping. */
710 /* The long option's name. */
712 /* The equivalent short option. */
714 /* Argument info. A string of flag chars; NULL equals no options.
715 a => argument required.
716 o => argument optional.
717 j => join argument to equivalent, making one word.
718 * => allow other text after NAME as an argument. */
722 /* This is the table of mappings. Mappings are tried sequentially
723 for each option encountered; the first one that matches, wins. */
725 struct option_map option_map
[] =
727 {"--profile-blocks", "-a", 0},
728 {"--target", "-b", "a"},
729 {"--compile", "-c", 0},
730 {"--dump", "-d", "a"},
731 {"--entry", "-e", 0},
732 {"--debug", "-g", "oj"},
733 {"--include", "-include", "a"},
734 {"--imacros", "-imacros", "a"},
735 {"--include-prefix", "-iprefix", "a"},
736 {"--include-directory-after", "-idirafter", "a"},
737 {"--include-with-prefix", "-iwithprefix", "a"},
738 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
739 {"--include-with-prefix-after", "-iwithprefix", "a"},
740 {"--machine-", "-m", "*j"},
741 {"--machine", "-m", "aj"},
742 {"--no-standard-includes", "-nostdinc", 0},
743 {"--no-standard-libraries", "-nostdlib", 0},
744 {"--no-precompiled-includes", "-noprecomp", 0},
745 {"--output", "-o", "a"},
746 {"--profile", "-p", 0},
747 {"--quiet", "-q", 0},
748 {"--silent", "-q", 0},
749 {"--force-link", "-u", "a"},
750 {"--verbose", "-v", 0},
751 {"--version", "-dumpversion", 0},
752 {"--no-warnings", "-w", 0},
753 {"--language", "-x", "a"},
755 {"--assert", "-A", "a"},
756 {"--prefix", "-B", "a"},
757 {"--comments", "-C", 0},
758 {"--define-macro", "-D", "a"},
759 {"--preprocess", "-E", 0},
760 {"--trace-includes", "-H", 0},
761 {"--include-directory", "-I", "a"},
762 {"--include-barrier", "-I-", 0},
763 {"--library-directory", "-L", "a"},
764 {"--dependencies", "-M", 0},
765 {"--user-dependencies", "-MM", 0},
766 {"--write-dependencies", "-MD", 0},
767 {"--write-user-dependencies", "-MMD", 0},
768 {"--optimize", "-O", "oj"},
769 {"--no-line-commands", "-P", 0},
770 {"--assemble", "-S", 0},
771 {"--undefine-macro", "-U", "a"},
772 {"--use-version", "-V", "a"},
773 {"--for-assembler", "-Wa", "a"},
774 {"--extra-warnings", "-W", 0},
775 {"--all-warnings", "-Wall", 0},
776 {"--warn-", "-W", "*j"},
777 {"--for-linker", "-Xlinker", "a"},
779 {"--ansi", "-ansi", 0},
780 {"--traditional", "-traditional", 0},
781 {"--traditional-cpp", "-traditional-cpp", 0},
782 {"--trigraphs", "-trigraphs", 0},
783 {"--pipe", "-pipe", 0},
784 {"--dumpbase", "-dumpbase", "a"},
785 {"--pedantic", "-pedantic", 0},
786 {"--pedantic-errors", "-pedantic-errors", 0},
787 {"--save-temps", "-save-temps", 0},
788 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
789 {"--print-file-name", "-print-file-name=", "aj"},
790 {"--print-prog-name", "-print-prog-name=", "aj"},
791 {"--static", "-static", 0},
792 {"--shared", "-shared", 0},
793 {"--symbolic", "-symbolic", 0},
797 /* Translate the options described by *ARGCP and *ARGVP.
798 Make a new vector and store it back in *ARGVP,
799 and store its length in *ARGVC. */
802 translate_options (argcp
, argvp
)
808 char **argv
= *argvp
;
809 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
813 newv
[newindex
++] = argv
[i
++];
817 /* Translate -- options. */
818 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
820 /* Find a mapping that applies to this option. */
821 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
823 int optlen
= strlen (option_map
[j
].name
);
824 int complen
= strlen (argv
[i
]);
825 char *arginfo
= option_map
[j
].arg_info
;
829 if (complen
> optlen
)
831 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
833 int extra
= strlen (argv
[i
]) > optlen
;
838 /* If the option has an argument, accept that. */
839 if (argv
[i
][optlen
] == '=')
840 arg
= argv
[i
] + optlen
+ 1;
841 /* If this mapping allows extra text at end of name,
842 accept that as "argument". */
843 else if (index (arginfo
, '*') != 0)
844 arg
= argv
[i
] + optlen
;
845 /* Otherwise, extra text at end means mismatch.
846 Try other mappings. */
850 else if (index (arginfo
, '*') != 0)
851 error ("Incomplete `%s' option", option_map
[j
].name
);
853 /* Handle arguments. */
854 if (index (arginfo
, 'o') != 0)
859 error ("Missing argument to `%s' option",
864 else if (index (arginfo
, '*') != 0)
866 else if (index (arginfo
, 'a') == 0)
869 error ("Extraneous argument to `%s' option",
874 /* Store the translation as one argv elt or as two. */
875 if (arg
!= 0 && index (arginfo
, 'j') != 0)
876 newv
[newindex
++] = concat (option_map
[j
].equivalent
,
880 newv
[newindex
++] = option_map
[j
].equivalent
;
881 newv
[newindex
++] = arg
;
884 newv
[newindex
++] = option_map
[j
].equivalent
;
891 /* Handle old-fashioned options--just copy them through,
892 with their arguments. */
893 else if (argv
[i
][0] == '-')
895 char *p
= argv
[i
] + 1;
899 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
900 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
901 else if (WORD_SWITCH_TAKES_ARG (p
))
902 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
903 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
906 else if (! strcmp (p
, "Xlinker"))
909 /* Watch out for an option at the end of the command line that
910 is missing arguments, and avoid skipping past the end of the
912 if (nskip
+ i
> argc
)
917 newv
[newindex
++] = argv
[i
++];
922 /* Ordinary operands, or +e options. */
923 newv
[newindex
++] = argv
[i
++];
932 /* Read compilation specs from a file named FILENAME,
933 replacing the default ones.
935 A suffix which starts with `*' is a definition for
936 one of the machine-specific sub-specs. The "suffix" should be
937 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
938 The corresponding spec is stored in asm_spec, etc.,
939 rather than in the `compilers' vector.
941 Anything invalid in the file is a fatal error. */
944 read_specs (filename
)
953 fprintf (stderr
, "Reading specs from %s\n", filename
);
955 /* Open and stat the file. */
956 desc
= open (filename
, 0, 0);
958 pfatal_with_name (filename
);
959 if (stat (filename
, &statbuf
) < 0)
960 pfatal_with_name (filename
);
962 /* Read contents of file into BUFFER. */
963 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
964 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
965 buffer
[statbuf
.st_size
] = 0;
968 /* Scan BUFFER for specs, putting them in the vector. */
974 char *in
, *out
, *p1
, *p2
;
976 /* Advance P in BUFFER to the next nonblank nocomment line. */
977 p
= skip_whitespace (p
);
981 /* Find the colon that should end the suffix. */
983 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
984 /* The colon shouldn't be missing. */
986 fatal ("specs file malformed after %d characters", p1
- buffer
);
987 /* Skip back over trailing whitespace. */
989 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
990 /* Copy the suffix to a string. */
991 suffix
= save_string (p
, p2
- p
);
992 /* Find the next line. */
993 p
= skip_whitespace (p1
+ 1);
995 fatal ("specs file malformed after %d characters", p
- buffer
);
997 /* Find next blank line. */
998 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
999 /* Specs end at the blank line and do not include the newline. */
1000 spec
= save_string (p
, p1
- p
);
1003 /* Delete backslash-newline sequences from the spec. */
1008 if (in
[0] == '\\' && in
[1] == '\n')
1010 else if (in
[0] == '#')
1012 while (*in
&& *in
!= '\n') in
++;
1019 if (suffix
[0] == '*')
1021 if (! strcmp (suffix
, "*link_command"))
1022 link_command_spec
= spec
;
1024 set_spec (suffix
+ 1, spec
);
1028 /* Add this pair to the vector. */
1030 = ((struct compiler
*)
1031 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1032 compilers
[n_compilers
].suffix
= suffix
;
1033 bzero (compilers
[n_compilers
].spec
,
1034 sizeof compilers
[n_compilers
].spec
);
1035 compilers
[n_compilers
].spec
[0] = spec
;
1037 bzero (&compilers
[n_compilers
], sizeof compilers
[n_compilers
]);
1041 link_command_spec
= spec
;
1044 if (link_command_spec
== 0)
1045 fatal ("spec file has no spec for linking");
1054 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1055 be considered whitespace. */
1056 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1058 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1062 while (*p
!= '\n') p
++;
1072 /* Structure to keep track of the specs that have been defined so far. These
1073 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1077 char *name
; /* Name of the spec. */
1078 char *spec
; /* The spec itself. */
1079 struct spec_list
*next
; /* Next spec in linked list. */
1082 /* List of specs that have been defined so far. */
1084 static struct spec_list
*specs
= (struct spec_list
*) 0;
1086 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1087 removed; If the spec starts with a + then SPEC is added to the end of the
1091 set_spec (name
, spec
)
1095 struct spec_list
*sl
;
1098 /* See if the spec already exists */
1099 for (sl
= specs
; sl
; sl
= sl
->next
)
1100 if (strcmp (sl
->name
, name
) == 0)
1105 /* Not found - make it */
1106 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1107 sl
->name
= save_string (name
, strlen (name
));
1108 sl
->spec
= save_string ("", 0);
1113 old_spec
= sl
->spec
;
1114 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1115 sl
->spec
= concat (old_spec
, spec
+ 1, "");
1117 sl
->spec
= save_string (spec
, strlen (spec
));
1119 if (! strcmp (name
, "asm"))
1120 asm_spec
= sl
->spec
;
1121 else if (! strcmp (name
, "asm_final"))
1122 asm_final_spec
= sl
->spec
;
1123 else if (! strcmp (name
, "cc1"))
1124 cc1_spec
= sl
->spec
;
1125 else if (! strcmp (name
, "cc1plus"))
1126 cc1plus_spec
= sl
->spec
;
1127 else if (! strcmp (name
, "cpp"))
1128 cpp_spec
= sl
->spec
;
1129 else if (! strcmp (name
, "endfile"))
1130 endfile_spec
= sl
->spec
;
1131 else if (! strcmp (name
, "lib"))
1132 lib_spec
= sl
->spec
;
1133 else if (! strcmp (name
, "link"))
1134 link_spec
= sl
->spec
;
1135 else if (! strcmp (name
, "predefines"))
1136 cpp_predefines
= sl
->spec
;
1137 else if (! strcmp (name
, "signed_char"))
1138 signed_char_spec
= sl
->spec
;
1139 else if (! strcmp (name
, "startfile"))
1140 startfile_spec
= sl
->spec
;
1141 else if (! strcmp (name
, "switches_need_spaces"))
1142 switches_need_spaces
= sl
->spec
;
1143 else if (! strcmp (name
, "cross_compile"))
1144 cross_compile
= atoi (sl
->spec
);
1145 /* Free the old spec */
1150 /* Accumulate a command (program name and args), and run it. */
1152 /* Vector of pointers to arguments in the current line of specifications. */
1154 static char **argbuf
;
1156 /* Number of elements allocated in argbuf. */
1158 static int argbuf_length
;
1160 /* Number of elements in argbuf currently in use (containing args). */
1162 static int argbuf_index
;
1164 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1165 temp file. Used only if MKTEMP_EACH_FILE. */
1167 static struct temp_name
{
1168 char *suffix
; /* suffix associated with the code. */
1169 int length
; /* strlen (suffix). */
1170 int unique
; /* Indicates whether %g or %u/%U was used. */
1171 char *filename
; /* associated filename. */
1172 int filename_length
; /* strlen (filename). */
1173 struct temp_name
*next
;
1176 /* Number of commands executed so far. */
1178 static int execution_count
;
1180 /* Number of commands that exited with a signal. */
1182 static int signal_count
;
1184 /* Name with which this program was invoked. */
1186 static char *programname
;
1188 /* Structures to keep track of prefixes to try when looking for files. */
1192 char *prefix
; /* String to prepend to the path. */
1193 struct prefix_list
*next
; /* Next in linked list. */
1194 int require_machine_suffix
; /* Don't use without machine_suffix. */
1195 /* 2 means try both machine_suffix and just_machine_suffix. */
1196 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1201 struct prefix_list
*plist
; /* List of prefixes to try */
1202 int max_len
; /* Max length of a prefix in PLIST */
1203 char *name
; /* Name of this list (used in config stuff) */
1206 /* List of prefixes to try when looking for executables. */
1208 static struct path_prefix exec_prefix
= { 0, 0, "exec" };
1210 /* List of prefixes to try when looking for startup (crt0) files. */
1212 static struct path_prefix startfile_prefix
= { 0, 0, "startfile" };
1214 /* List of prefixes to try when looking for include files. */
1216 static struct path_prefix include_prefix
= { 0, 0, "include" };
1218 /* Suffix to attach to directories searched for commands.
1219 This looks like `MACHINE/VERSION/'. */
1221 static char *machine_suffix
= 0;
1223 /* Suffix to attach to directories searched for commands.
1224 This is just `MACHINE/'. */
1226 static char *just_machine_suffix
= 0;
1228 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1230 static char *gcc_exec_prefix
;
1232 /* Default prefixes to attach to command names. */
1234 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1235 #undef MD_EXEC_PREFIX
1236 #undef MD_STARTFILE_PREFIX
1237 #undef MD_STARTFILE_PREFIX_1
1240 #ifndef STANDARD_EXEC_PREFIX
1241 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1242 #endif /* !defined STANDARD_EXEC_PREFIX */
1244 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1245 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1246 #ifdef MD_EXEC_PREFIX
1247 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1250 #ifndef STANDARD_STARTFILE_PREFIX
1251 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1252 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1254 #ifdef MD_STARTFILE_PREFIX
1255 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1257 #ifdef MD_STARTFILE_PREFIX_1
1258 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1260 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1261 static char *standard_startfile_prefix_1
= "/lib/";
1262 static char *standard_startfile_prefix_2
= "/usr/lib/";
1264 #ifndef TOOLDIR_BASE_PREFIX
1265 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1267 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1268 static char *tooldir_prefix
;
1270 /* Clear out the vector of arguments (after a command is executed). */
1278 /* Add one argument to the vector at the end.
1279 This is done when a space is seen or at the end of the line.
1280 If DELETE_ALWAYS is nonzero, the arg is a filename
1281 and the file should be deleted eventually.
1282 If DELETE_FAILURE is nonzero, the arg is a filename
1283 and the file should be deleted if this compilation fails. */
1286 store_arg (arg
, delete_always
, delete_failure
)
1288 int delete_always
, delete_failure
;
1290 if (argbuf_index
+ 1 == argbuf_length
)
1292 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1295 argbuf
[argbuf_index
++] = arg
;
1296 argbuf
[argbuf_index
] = 0;
1298 if (delete_always
|| delete_failure
)
1299 record_temp_file (arg
, delete_always
, delete_failure
);
1302 /* Record the names of temporary files we tell compilers to write,
1303 and delete them at the end of the run. */
1305 /* This is the common prefix we use to make temp file names.
1306 It is chosen once for each run of this program.
1307 It is substituted into a spec by %g.
1308 Thus, all temp file names contain this prefix.
1309 In practice, all temp file names start with this prefix.
1311 This prefix comes from the envvar TMPDIR if it is defined;
1312 otherwise, from the P_tmpdir macro if that is defined;
1313 otherwise, in /usr/tmp or /tmp. */
1315 static char *temp_filename
;
1317 /* Length of the prefix. */
1319 static int temp_filename_length
;
1321 /* Define the list of temporary files to delete. */
1326 struct temp_file
*next
;
1329 /* Queue of files to delete on success or failure of compilation. */
1330 static struct temp_file
*always_delete_queue
;
1331 /* Queue of files to delete on failure of compilation. */
1332 static struct temp_file
*failure_delete_queue
;
1334 /* Record FILENAME as a file to be deleted automatically.
1335 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1336 otherwise delete it in any case.
1337 FAIL_DELETE nonzero means delete it if a compilation step fails;
1338 otherwise delete it in any case. */
1341 record_temp_file (filename
, always_delete
, fail_delete
)
1346 register char *name
;
1347 name
= xmalloc (strlen (filename
) + 1);
1348 strcpy (name
, filename
);
1352 register struct temp_file
*temp
;
1353 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1354 if (! strcmp (name
, temp
->name
))
1356 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1357 temp
->next
= always_delete_queue
;
1359 always_delete_queue
= temp
;
1365 register struct temp_file
*temp
;
1366 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1367 if (! strcmp (name
, temp
->name
))
1369 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1370 temp
->next
= failure_delete_queue
;
1372 failure_delete_queue
= temp
;
1377 /* Delete all the temporary files whose names we previously recorded. */
1380 delete_if_ordinary (name
)
1387 printf ("Delete %s? (y or n) ", name
);
1391 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1392 if (i
== 'y' || i
== 'Y')
1394 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1395 if (unlink (name
) < 0)
1397 perror_with_name (name
);
1401 delete_temp_files ()
1403 register struct temp_file
*temp
;
1405 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1406 delete_if_ordinary (temp
->name
);
1407 always_delete_queue
= 0;
1410 /* Delete all the files to be deleted on error. */
1413 delete_failure_queue ()
1415 register struct temp_file
*temp
;
1417 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1418 delete_if_ordinary (temp
->name
);
1422 clear_failure_queue ()
1424 failure_delete_queue
= 0;
1427 /* Compute a string to use as the base of all temporary file names.
1428 It is substituted for %g. */
1431 choose_temp_base_try (try, base
)
1438 else if (try == (char *)0)
1440 else if (access (try, R_OK
| W_OK
) != 0)
1453 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1454 base
= choose_temp_base_try (getenv ("TMP"), base
);
1455 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1458 base
= choose_temp_base_try (P_tmpdir
, base
);
1461 base
= choose_temp_base_try ("/usr/tmp", base
);
1462 base
= choose_temp_base_try ("/tmp", base
);
1464 /* If all else fails, use the current directory! */
1465 if (base
== (char *)0)
1468 len
= strlen (base
);
1469 temp_filename
= xmalloc (len
+ sizeof("/ccXXXXXX") + 1);
1470 strcpy (temp_filename
, base
);
1471 if (len
> 0 && temp_filename
[len
-1] != '/')
1472 temp_filename
[len
++] = '/';
1473 strcpy (temp_filename
+ len
, "ccXXXXXX");
1475 mktemp (temp_filename
);
1476 temp_filename_length
= strlen (temp_filename
);
1477 if (temp_filename_length
== 0)
1482 /* Routine to add variables to the environment. We do this to pass
1483 the pathname of the gcc driver, and the directories search to the
1484 collect2 program, which is being run as ld. This way, we can be
1485 sure of executing the right compiler when collect2 wants to build
1486 constructors and destructors. Since the environment variables we
1487 use come from an obstack, we don't have to worry about allocating
1496 #ifndef VMS /* nor about VMS */
1498 extern char **environ
;
1499 char **old_environ
= environ
;
1503 int str_len
= strlen (str
);
1507 while ((ch
= *p
++) != '\0' && ch
!= '=')
1513 /* Search for replacing an existing environment variable, and
1514 count the number of total environment variables. */
1515 for (envp
= old_environ
; *envp
; envp
++)
1518 if (!strncmp (str
, *envp
, name_len
))
1525 /* Add a new environment variable */
1526 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1528 bcopy (old_environ
, environ
+1, sizeof (char *) * (num_envs
+1));
1533 #endif /* HAVE_PUTENV */
1536 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1539 putenv_from_prefixes (paths
, env_var
)
1540 struct path_prefix
*paths
;
1543 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1545 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1546 int first_time
= TRUE
;
1547 struct prefix_list
*pprefix
;
1549 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1551 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1553 int len
= strlen (pprefix
->prefix
);
1556 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1559 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1562 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1563 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1566 if (just_machine_suffix
1567 && pprefix
->require_machine_suffix
== 2
1568 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1571 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1574 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1575 obstack_grow (&collect_obstack
, just_machine_suffix
,
1579 if (!pprefix
->require_machine_suffix
)
1582 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1585 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1588 obstack_1grow (&collect_obstack
, '\0');
1589 putenv (obstack_finish (&collect_obstack
));
1593 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1594 access to check permissions.
1595 Return 0 if not found, otherwise return its name, allocated with malloc. */
1598 find_a_file (pprefix
, name
, mode
)
1599 struct path_prefix
*pprefix
;
1604 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1605 struct prefix_list
*pl
;
1606 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1609 len
+= strlen (machine_suffix
);
1611 temp
= xmalloc (len
);
1613 /* Determine the filename to execute (special case for absolute paths). */
1617 if (access (name
, mode
))
1619 strcpy (temp
, name
);
1624 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1628 strcpy (temp
, pl
->prefix
);
1629 strcat (temp
, machine_suffix
);
1630 strcat (temp
, name
);
1631 if (access (temp
, mode
) == 0)
1633 if (pl
->used_flag_ptr
!= 0)
1634 *pl
->used_flag_ptr
= 1;
1637 /* Some systems have a suffix for executable files.
1638 So try appending that. */
1639 if (file_suffix
[0] != 0)
1641 strcat (temp
, file_suffix
);
1642 if (access (temp
, mode
) == 0)
1644 if (pl
->used_flag_ptr
!= 0)
1645 *pl
->used_flag_ptr
= 1;
1650 /* Certain prefixes are tried with just the machine type,
1651 not the version. This is used for finding as, ld, etc. */
1652 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1654 strcpy (temp
, pl
->prefix
);
1655 strcat (temp
, just_machine_suffix
);
1656 strcat (temp
, name
);
1657 if (access (temp
, mode
) == 0)
1659 if (pl
->used_flag_ptr
!= 0)
1660 *pl
->used_flag_ptr
= 1;
1663 /* Some systems have a suffix for executable files.
1664 So try appending that. */
1665 if (file_suffix
[0] != 0)
1667 strcat (temp
, file_suffix
);
1668 if (access (temp
, mode
) == 0)
1670 if (pl
->used_flag_ptr
!= 0)
1671 *pl
->used_flag_ptr
= 1;
1676 /* Certain prefixes can't be used without the machine suffix
1677 when the machine or version is explicitly specified. */
1678 if (!pl
->require_machine_suffix
)
1680 strcpy (temp
, pl
->prefix
);
1681 strcat (temp
, name
);
1682 if (access (temp
, mode
) == 0)
1684 if (pl
->used_flag_ptr
!= 0)
1685 *pl
->used_flag_ptr
= 1;
1688 /* Some systems have a suffix for executable files.
1689 So try appending that. */
1690 if (file_suffix
[0] != 0)
1692 strcat (temp
, file_suffix
);
1693 if (access (temp
, mode
) == 0)
1695 if (pl
->used_flag_ptr
!= 0)
1696 *pl
->used_flag_ptr
= 1;
1707 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1708 at the start of the list, otherwise it goes at the end.
1710 If WARN is nonzero, we will warn if no file is found
1711 through this prefix. WARN should point to an int
1712 which will be set to 1 if this entry is used.
1714 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1715 the complete value of machine_suffix.
1716 2 means try both machine_suffix and just_machine_suffix. */
1719 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1720 struct path_prefix
*pprefix
;
1723 int require_machine_suffix
;
1726 struct prefix_list
*pl
, **prev
;
1729 if (!first
&& pprefix
->plist
)
1731 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1736 prev
= &pprefix
->plist
;
1738 /* Keep track of the longest prefix */
1740 len
= strlen (prefix
);
1741 if (len
> pprefix
->max_len
)
1742 pprefix
->max_len
= len
;
1744 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1745 pl
->prefix
= save_string (prefix
, len
);
1746 pl
->require_machine_suffix
= require_machine_suffix
;
1747 pl
->used_flag_ptr
= warn
;
1754 pl
->next
= (struct prefix_list
*) 0;
1758 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1761 unused_prefix_warnings (pprefix
)
1762 struct path_prefix
*pprefix
;
1764 struct prefix_list
*pl
= pprefix
->plist
;
1768 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1770 error ("file path prefix `%s' never used",
1772 /* Prevent duplicate warnings. */
1773 *pl
->used_flag_ptr
= 1;
1779 /* Get rid of all prefixes built up so far in *PLISTP. */
1782 free_path_prefix (pprefix
)
1783 struct path_prefix
*pprefix
;
1785 struct prefix_list
*pl
= pprefix
->plist
;
1786 struct prefix_list
*temp
;
1792 free (temp
->prefix
);
1793 free ((char *) temp
);
1795 pprefix
->plist
= (struct prefix_list
*) 0;
1798 /* stdin file number. */
1799 #define STDIN_FILE_NO 0
1801 /* stdout file number. */
1802 #define STDOUT_FILE_NO 1
1804 /* value of `pipe': port index for reading. */
1807 /* value of `pipe': port index for writing. */
1808 #define WRITE_PORT 1
1810 /* Pipe waiting from last process, to be used as input for the next one.
1811 Value is STDIN_FILE_NO if no pipe is waiting
1812 (i.e. the next command is the first of a group). */
1814 static int last_pipe_input
;
1816 /* Fork one piped subcommand. FUNC is the system call to use
1817 (either execv or execvp). ARGV is the arg vector to use.
1818 NOT_LAST is nonzero if this is not the last subcommand
1819 (i.e. its output should be piped to the next one.) */
1824 /* Declare these to avoid compilation error. They won't be called. */
1825 int execv(const char *a
, const char **b
){}
1826 int execvp(const char *a
, const char **b
){}
1829 pexecute (search_flag
, program
, argv
, not_last
)
1837 int i
, el
= search_flag
? 0 : 4;
1839 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1840 rf
= scmd
+ strlen(program
) + 2 + el
;
1841 sprintf (scmd
, "%s%s @%s.gp", program
,
1842 (search_flag
? "" : ".exe"), temp_filename
);
1843 argfile
= fopen (rf
, "w");
1845 pfatal_with_name (rf
);
1847 for (i
=1; argv
[i
]; i
++)
1850 for (cp
= argv
[i
]; *cp
; cp
++)
1852 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1853 fputc ('\\', argfile
);
1854 fputc (*cp
, argfile
);
1856 fputc ('\n', argfile
);
1866 perror_exec (program
);
1867 return MIN_FATAL_STATUS
<< 8;
1873 #else /* not __MSDOS__ */
1876 pexecute (search_flag
, program
, argv
, not_last
)
1882 int (*func
)() = (search_flag
? execv
: execvp
);
1885 int input_desc
= last_pipe_input
;
1886 int output_desc
= STDOUT_FILE_NO
;
1887 int retries
, sleep_interval
;
1889 /* If this isn't the last process, make a pipe for its output,
1890 and record it as waiting to be the input to the next process. */
1894 if (pipe (pdes
) < 0)
1895 pfatal_with_name ("pipe");
1896 output_desc
= pdes
[WRITE_PORT
];
1897 last_pipe_input
= pdes
[READ_PORT
];
1900 last_pipe_input
= STDIN_FILE_NO
;
1902 /* Fork a subprocess; wait and retry if it fails. */
1904 for (retries
= 0; retries
< 4; retries
++)
1909 sleep (sleep_interval
);
1910 sleep_interval
*= 2;
1917 pfatal_with_name ("fork");
1919 pfatal_with_name ("vfork");
1925 /* Move the input and output pipes into place, if nec. */
1926 if (input_desc
!= STDIN_FILE_NO
)
1928 close (STDIN_FILE_NO
);
1932 if (output_desc
!= STDOUT_FILE_NO
)
1934 close (STDOUT_FILE_NO
);
1936 close (output_desc
);
1939 /* Close the parent's descs that aren't wanted here. */
1940 if (last_pipe_input
!= STDIN_FILE_NO
)
1941 close (last_pipe_input
);
1943 /* Exec the program. */
1944 (*func
) (program
, argv
);
1945 perror_exec (program
);
1951 /* In the parent, after forking.
1952 Close the descriptors that we made for this child. */
1953 if (input_desc
!= STDIN_FILE_NO
)
1955 if (output_desc
!= STDOUT_FILE_NO
)
1956 close (output_desc
);
1958 /* Return child's process number. */
1963 #endif /* not __MSDOS__ */
1967 pexecute (search_flag
, program
, argv
, not_last
)
1973 return (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1975 #endif /* not OS2 */
1977 /* Execute the command specified by the arguments on the current line of spec.
1978 When using pipes, this includes several piped-together commands
1979 with `|' between them.
1981 Return 0 if successful, -1 if failed. */
1987 int n_commands
; /* # of command. */
1991 char *prog
; /* program name. */
1992 char **argv
; /* vector of args. */
1993 int pid
; /* pid of process for this command. */
1996 struct command
*commands
; /* each command buffer with above info. */
1998 /* Count # of piped commands. */
1999 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2000 if (strcmp (argbuf
[i
], "|") == 0)
2003 /* Get storage for each command. */
2005 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2007 /* Split argbuf into its separate piped processes,
2008 and record info about each one.
2009 Also search for the programs that are to be run. */
2011 commands
[0].prog
= argbuf
[0]; /* first command. */
2012 commands
[0].argv
= &argbuf
[0];
2013 string
= find_a_file (&exec_prefix
, commands
[0].prog
, X_OK
);
2015 commands
[0].argv
[0] = string
;
2017 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2018 if (strcmp (argbuf
[i
], "|") == 0)
2019 { /* each command. */
2021 fatal ("-pipe not supported under MS-DOS");
2023 argbuf
[i
] = 0; /* termination of command args. */
2024 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2025 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2026 string
= find_a_file (&exec_prefix
, commands
[n_commands
].prog
, X_OK
);
2028 commands
[n_commands
].argv
[0] = string
;
2032 argbuf
[argbuf_index
] = 0;
2034 /* If -v, print what we are about to do, and maybe query. */
2038 /* Print each piped command as a separate line. */
2039 for (i
= 0; i
< n_commands
; i
++)
2043 for (j
= commands
[i
].argv
; *j
; j
++)
2044 fprintf (stderr
, " %s", *j
);
2046 /* Print a pipe symbol after all but the last command. */
2047 if (i
+ 1 != n_commands
)
2048 fprintf (stderr
, " |");
2049 fprintf (stderr
, "\n");
2053 fprintf (stderr
, "\nGo ahead? (y or n) ");
2057 while (getchar () != '\n') ;
2058 if (i
!= 'y' && i
!= 'Y')
2063 /* Run each piped subprocess. */
2065 last_pipe_input
= STDIN_FILE_NO
;
2066 for (i
= 0; i
< n_commands
; i
++)
2068 char *string
= commands
[i
].argv
[0];
2070 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2071 string
, commands
[i
].argv
,
2072 i
+ 1 < n_commands
);
2074 if (string
!= commands
[i
].prog
)
2080 /* Wait for all the subprocesses to finish.
2081 We don't care what order they finish in;
2082 we know that N_COMMANDS waits will get them all. */
2087 for (i
= 0; i
< n_commands
; i
++)
2091 char *prog
= "unknown";
2094 status
= pid
= commands
[i
].pid
;
2096 pid
= wait (&status
);
2104 for (j
= 0; j
< n_commands
; j
++)
2105 if (commands
[j
].pid
== pid
)
2106 prog
= commands
[j
].prog
;
2108 if ((status
& 0x7F) != 0)
2110 fatal ("Internal compiler error: program %s got fatal signal %d",
2111 prog
, (status
& 0x7F));
2114 if (((status
& 0xFF00) >> 8) >= MIN_FATAL_STATUS
)
2122 /* Find all the switches given to us
2123 and make a vector describing them.
2124 The elements of the vector are strings, one per switch given.
2125 If a switch uses following arguments, then the `part1' field
2126 is the switch itself and the `args' field
2127 is a null-terminated vector containing the following arguments.
2128 The `live_cond' field is 1 if the switch is true in a conditional spec,
2129 -1 if false (overridden by a later switch), and is initialized to zero.
2130 The `valid' field is nonzero if any spec has looked at this switch;
2131 if it remains zero at the end of the run, it must be meaningless. */
2141 static struct switchstr
*switches
;
2143 static int n_switches
;
2151 /* Also a vector of input files specified. */
2153 static struct infile
*infiles
;
2155 static int n_infiles
;
2157 /* And a vector of corresponding output files is made up later. */
2159 static char **outfiles
;
2161 /* Create the vector `switches' and its contents.
2162 Store its length in `n_switches'. */
2165 process_command (argc
, argv
)
2171 char *spec_lang
= 0;
2172 int last_language_n_infiles
;
2174 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2179 /* Figure compiler version from version string. */
2181 compiler_version
= save_string (version_string
, strlen (version_string
));
2182 for (temp
= compiler_version
; *temp
; ++temp
)
2191 /* Set up the default search paths. */
2193 if (gcc_exec_prefix
)
2195 add_prefix (&exec_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2196 add_prefix (&startfile_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2199 /* COMPILER_PATH and LIBRARY_PATH have values
2200 that are lists of directory names with colons. */
2202 temp
= getenv ("COMPILER_PATH");
2205 char *startp
, *endp
;
2206 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2208 startp
= endp
= temp
;
2211 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2213 strncpy (nstore
, startp
, endp
-startp
);
2216 strcpy (nstore
, "./");
2218 else if (endp
[-1] != '/')
2220 nstore
[endp
-startp
] = '/';
2221 nstore
[endp
-startp
+1] = 0;
2224 nstore
[endp
-startp
] = 0;
2225 add_prefix (&exec_prefix
, nstore
, 0, 0, NULL_PTR
);
2228 endp
= startp
= endp
+ 1;
2235 temp
= getenv ("LIBRARY_PATH");
2238 char *startp
, *endp
;
2239 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2241 startp
= endp
= temp
;
2244 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2246 strncpy (nstore
, startp
, endp
-startp
);
2249 strcpy (nstore
, "./");
2251 else if (endp
[-1] != '/')
2253 nstore
[endp
-startp
] = '/';
2254 nstore
[endp
-startp
+1] = 0;
2257 nstore
[endp
-startp
] = 0;
2258 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2261 endp
= startp
= endp
+ 1;
2268 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2269 temp
= getenv ("LPATH");
2272 char *startp
, *endp
;
2273 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2275 startp
= endp
= temp
;
2278 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2280 strncpy (nstore
, startp
, endp
-startp
);
2283 strcpy (nstore
, "./");
2285 else if (endp
[-1] != '/')
2287 nstore
[endp
-startp
] = '/';
2288 nstore
[endp
-startp
+1] = 0;
2291 nstore
[endp
-startp
] = 0;
2292 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2295 endp
= startp
= endp
+ 1;
2302 /* Convert new-style -- options to old-style. */
2303 translate_options (&argc
, &argv
);
2305 /* Scan argv twice. Here, the first time, just count how many switches
2306 there will be in their vector, and how many input files in theirs.
2307 Here we also parse the switches that cc itself uses (e.g. -v). */
2309 for (i
= 1; i
< argc
; i
++)
2311 if (! strcmp (argv
[i
], "-dumpspecs"))
2313 printf ("*asm:\n%s\n\n", asm_spec
);
2314 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2315 printf ("*cpp:\n%s\n\n", cpp_spec
);
2316 printf ("*cc1:\n%s\n\n", cc1_spec
);
2317 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2318 printf ("*endfile:\n%s\n\n", endfile_spec
);
2319 printf ("*link:\n%s\n\n", link_spec
);
2320 printf ("*lib:\n%s\n\n", lib_spec
);
2321 printf ("*startfile:\n%s\n\n", startfile_spec
);
2322 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2323 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2324 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2325 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2329 else if (! strcmp (argv
[i
], "-dumpversion"))
2331 printf ("%s\n", version_string
);
2334 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2335 print_file_name
= "libgcc.a";
2336 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2337 print_file_name
= argv
[i
] + 17;
2338 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2339 print_prog_name
= argv
[i
] + 17;
2340 else if (! strcmp (argv
[i
], "-Xlinker"))
2342 /* Pass the argument of this option to the linker when we link. */
2345 fatal ("argument to `-Xlinker' is missing");
2348 if (!linker_options
)
2350 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2353 = (char **) xrealloc (linker_options
,
2354 n_linker_options
* sizeof (char **));
2356 linker_options
[n_linker_options
- 1] = argv
[++i
];
2358 else if (! strncmp (argv
[i
], "-Wl,", 4))
2361 /* Pass the rest of this option to the linker when we link. */
2364 if (!linker_options
)
2366 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2369 = (char **) xrealloc (linker_options
,
2370 n_linker_options
* sizeof (char **));
2372 /* Split the argument at commas. */
2374 for (j
= 4; argv
[i
][j
]; j
++)
2375 if (argv
[i
][j
] == ',')
2377 linker_options
[n_linker_options
- 1]
2378 = save_string (argv
[i
] + prev
, j
- prev
);
2381 = (char **) xrealloc (linker_options
,
2382 n_linker_options
* sizeof (char **));
2385 /* Record the part after the last comma. */
2386 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2388 else if (! strncmp (argv
[i
], "-Wa,", 4))
2391 /* Pass the rest of this option to the assembler. */
2393 n_assembler_options
++;
2394 if (!assembler_options
)
2396 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2399 = (char **) xrealloc (assembler_options
,
2400 n_assembler_options
* sizeof (char **));
2402 /* Split the argument at commas. */
2404 for (j
= 4; argv
[i
][j
]; j
++)
2405 if (argv
[i
][j
] == ',')
2407 assembler_options
[n_assembler_options
- 1]
2408 = save_string (argv
[i
] + prev
, j
- prev
);
2409 n_assembler_options
++;
2411 = (char **) xrealloc (assembler_options
,
2412 n_assembler_options
* sizeof (char **));
2415 /* Record the part after the last comma. */
2416 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2418 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2419 /* The +e options to the C++ front-end. */
2421 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2423 register char *p
= &argv
[i
][1];
2424 register int c
= *p
;
2429 if (p
[1] == 0 && i
+ 1 == argc
)
2430 fatal ("argument to `-b' is missing");
2432 spec_machine
= argv
[++i
];
2434 spec_machine
= p
+ 1;
2439 int *temp
= (int *) xmalloc (sizeof (int));
2441 if (p
[1] == 0 && i
+ 1 == argc
)
2442 fatal ("argument to `-B' is missing");
2447 add_prefix (&exec_prefix
, value
, 1, 0, temp
);
2448 add_prefix (&startfile_prefix
, value
, 1, 0, temp
);
2449 add_prefix (&include_prefix
, concat (value
, "include", ""),
2452 /* As a kludge, if the arg is "[foo/]stageN/", just add
2453 "[foo/]stageN/../include" to the include prefix. */
2455 int len
= strlen (value
);
2456 if ((len
== 7 || (len
> 7 && value
[len
- 8] == '/'))
2457 && strncmp (value
+ len
- 7, "stage", 5) == 0
2458 && isdigit (value
[len
- 2])
2459 && value
[len
- 1] == '/')
2460 add_prefix (&include_prefix
,
2461 concat (value
, "../include", ""), 1, 0, 0);
2466 case 'v': /* Print our subcommands and print versions. */
2468 /* If they do anything other than exactly `-v', don't set
2469 verbose_flag; rather, continue on to give the error. */
2476 if (p
[1] == 0 && i
+ 1 == argc
)
2477 fatal ("argument to `-V' is missing");
2479 spec_version
= argv
[++i
];
2481 spec_version
= p
+ 1;
2482 compiler_version
= spec_version
;
2486 if (!strcmp (p
, "save-temps"))
2488 save_temps_flag
= 1;
2495 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2496 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2497 else if (WORD_SWITCH_TAKES_ARG (p
))
2498 i
+= WORD_SWITCH_TAKES_ARG (p
);
2505 /* Set up the search paths before we go looking for config files. */
2507 /* These come before the md prefixes so that we will find gcc's subcommands
2508 (such as cpp) rather than those of the host system. */
2509 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2510 as well as trying the machine and the version. */
2511 add_prefix (&exec_prefix
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2512 add_prefix (&exec_prefix
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2514 add_prefix (&startfile_prefix
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2515 add_prefix (&startfile_prefix
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2517 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
, "/");
2519 /* If tooldir is relative, base it on exec_prefix. A relative
2520 tooldir lets us move the installed tree as a unit.
2522 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2523 directories, so that we can search both the user specified directory
2524 and the standard place. */
2526 if (*tooldir_prefix
!= '/')
2528 if (gcc_exec_prefix
)
2530 char *gcc_exec_tooldir_prefix
2531 = concat (concat (gcc_exec_prefix
, spec_machine
, "/"),
2532 concat (spec_version
, "/", tooldir_prefix
),
2535 add_prefix (&exec_prefix
, concat (gcc_exec_tooldir_prefix
, "bin", "/"),
2537 add_prefix (&startfile_prefix
, concat (gcc_exec_tooldir_prefix
, "lib", "/"),
2541 tooldir_prefix
= concat (concat (standard_exec_prefix
, spec_machine
, "/"),
2542 concat (spec_version
, "/", tooldir_prefix
),
2546 add_prefix (&exec_prefix
, concat (tooldir_prefix
, "bin", "/"),
2548 add_prefix (&startfile_prefix
, concat (tooldir_prefix
, "lib", "/"),
2551 /* More prefixes are enabled in main, after we read the specs file
2552 and determine whether this is cross-compilation or not. */
2555 /* Then create the space for the vectors and scan again. */
2557 switches
= ((struct switchstr
*)
2558 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2559 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2562 last_language_n_infiles
= -1;
2564 /* This, time, copy the text of each switch and store a pointer
2565 to the copy in the vector of switches.
2566 Store all the infiles in their vector. */
2568 for (i
= 1; i
< argc
; i
++)
2570 /* Just skip the switches that were handled by the preceding loop. */
2571 if (!strcmp (argv
[i
], "-Xlinker"))
2573 else if (! strncmp (argv
[i
], "-Wl,", 4))
2575 else if (! strncmp (argv
[i
], "-Wa,", 4))
2577 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2579 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2581 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2583 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2585 /* Compensate for the +e options to the C++ front-end;
2586 they're there simply for cfront call-compatibility. We do
2587 some magic in default_compilers to pass them down properly.
2588 Note we deliberately start at the `+' here, to avoid passing
2589 -e0 or -e1 down into the linker. */
2590 switches
[n_switches
].part1
= &argv
[i
][0];
2591 switches
[n_switches
].args
= 0;
2592 switches
[n_switches
].live_cond
= 0;
2593 switches
[n_switches
].valid
= 0;
2596 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2598 register char *p
= &argv
[i
][1];
2599 register int c
= *p
;
2601 if (c
== 'B' || c
== 'b' || c
== 'V')
2603 /* Skip a separate arg, if any. */
2610 if (p
[1] == 0 && i
+ 1 == argc
)
2611 fatal ("argument to `-x' is missing");
2613 spec_lang
= argv
[++i
];
2616 if (! strcmp (spec_lang
, "none"))
2617 /* Suppress the warning if -xnone comes after the last input file,
2618 because alternate command interfaces like g++ might find it
2619 useful to place -xnone after each input file. */
2622 last_language_n_infiles
= n_infiles
;
2625 switches
[n_switches
].part1
= p
;
2626 /* Deal with option arguments in separate argv elements. */
2627 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2628 || WORD_SWITCH_TAKES_ARG (p
))
2631 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2635 /* Count only the option arguments in separate argv elements. */
2636 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2638 if (i
+ n_args
>= argc
)
2639 fatal ("argument to `-%s' is missing", p
);
2640 switches
[n_switches
].args
2641 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2643 switches
[n_switches
].args
[j
++] = argv
[++i
];
2644 /* Null-terminate the vector. */
2645 switches
[n_switches
].args
[j
] = 0;
2647 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2649 /* On some systems, ld cannot handle -o or -L without space.
2650 So split the -o or -L from its argument. */
2651 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2652 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2653 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2654 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2655 switches
[n_switches
].args
[1] = 0;
2658 switches
[n_switches
].args
= 0;
2660 switches
[n_switches
].live_cond
= 0;
2661 switches
[n_switches
].valid
= 0;
2662 /* This is always valid, since gcc.c itself understands it. */
2663 if (!strcmp (p
, "save-temps"))
2664 switches
[n_switches
].valid
= 1;
2669 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2670 && strcmp (argv
[i
], "-")
2671 && access (argv
[i
], R_OK
) < 0)
2673 perror_with_name (argv
[i
]);
2678 infiles
[n_infiles
].language
= spec_lang
;
2679 infiles
[n_infiles
++].name
= argv
[i
];
2684 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2685 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2687 switches
[n_switches
].part1
= 0;
2688 infiles
[n_infiles
].name
= 0;
2690 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2691 if (gcc_exec_prefix
)
2693 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2694 + strlen (spec_machine
) + 3);
2695 strcpy (temp
, gcc_exec_prefix
);
2696 strcat (temp
, spec_machine
);
2698 strcat (temp
, spec_version
);
2700 gcc_exec_prefix
= temp
;
2704 /* Process a spec string, accumulating and running commands. */
2706 /* These variables describe the input file name.
2707 input_file_number is the index on outfiles of this file,
2708 so that the output file name can be stored for later use by %o.
2709 input_basename is the start of the part of the input file
2710 sans all directory names, and basename_length is the number
2711 of characters starting there excluding the suffix .c or whatever. */
2713 static char *input_filename
;
2714 static int input_file_number
;
2715 static int input_filename_length
;
2716 static int basename_length
;
2717 static char *input_basename
;
2718 static char *input_suffix
;
2720 /* These are variables used within do_spec and do_spec_1. */
2722 /* Nonzero if an arg has been started and not yet terminated
2723 (with space, tab or newline). */
2724 static int arg_going
;
2726 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2727 is a temporary file name. */
2728 static int delete_this_arg
;
2730 /* Nonzero means %w has been seen; the next arg to be terminated
2731 is the output file name of this compilation. */
2732 static int this_is_output_file
;
2734 /* Nonzero means %s has been seen; the next arg to be terminated
2735 is the name of a library file and we should try the standard
2736 search dirs for it. */
2737 static int this_is_library_file
;
2739 /* Nonzero means that the input of this command is coming from a pipe. */
2740 static int input_from_pipe
;
2742 /* Process the spec SPEC and run the commands specified therein.
2743 Returns 0 if the spec is successfully processed; -1 if failed. */
2753 delete_this_arg
= 0;
2754 this_is_output_file
= 0;
2755 this_is_library_file
= 0;
2756 input_from_pipe
= 0;
2758 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2760 /* Force out any unfinished command.
2761 If -pipe, this forces out the last command if it ended in `|'. */
2764 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2767 if (argbuf_index
> 0)
2774 /* Process the sub-spec SPEC as a portion of a larger spec.
2775 This is like processing a whole spec except that we do
2776 not initialize at the beginning and we do not supply a
2777 newline by default at the end.
2778 INSWITCH nonzero means don't process %-sequences in SPEC;
2779 in this case, % is treated as an ordinary character.
2780 This is used while substituting switches.
2781 INSWITCH nonzero also causes SPC not to terminate an argument.
2783 Value is zero unless a line was finished
2784 and the command on that line reported an error. */
2787 do_spec_1 (spec
, inswitch
, soft_matched_part
)
2790 char *soft_matched_part
;
2792 register char *p
= spec
;
2799 /* If substituting a switch, treat all chars like letters.
2800 Otherwise, NL, SPC, TAB and % are special. */
2801 switch (inswitch
? 'a' : c
)
2804 /* End of line: finish any pending argument,
2805 then run the pending command if one has been started. */
2808 obstack_1grow (&obstack
, 0);
2809 string
= obstack_finish (&obstack
);
2810 if (this_is_library_file
)
2811 string
= find_file (string
);
2812 store_arg (string
, delete_this_arg
, this_is_output_file
);
2813 if (this_is_output_file
)
2814 outfiles
[input_file_number
] = string
;
2818 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2821 for (i
= 0; i
< n_switches
; i
++)
2822 if (!strcmp (switches
[i
].part1
, "pipe"))
2825 /* A `|' before the newline means use a pipe here,
2826 but only if -pipe was specified.
2827 Otherwise, execute now and don't pass the `|' as an arg. */
2830 input_from_pipe
= 1;
2831 switches
[i
].valid
= 1;
2838 if (argbuf_index
> 0)
2844 /* Reinitialize for a new command, and for a new argument. */
2847 delete_this_arg
= 0;
2848 this_is_output_file
= 0;
2849 this_is_library_file
= 0;
2850 input_from_pipe
= 0;
2854 /* End any pending argument. */
2857 obstack_1grow (&obstack
, 0);
2858 string
= obstack_finish (&obstack
);
2859 if (this_is_library_file
)
2860 string
= find_file (string
);
2861 store_arg (string
, delete_this_arg
, this_is_output_file
);
2862 if (this_is_output_file
)
2863 outfiles
[input_file_number
] = string
;
2867 obstack_1grow (&obstack
, c
);
2873 /* Space or tab ends an argument if one is pending. */
2876 obstack_1grow (&obstack
, 0);
2877 string
= obstack_finish (&obstack
);
2878 if (this_is_library_file
)
2879 string
= find_file (string
);
2880 store_arg (string
, delete_this_arg
, this_is_output_file
);
2881 if (this_is_output_file
)
2882 outfiles
[input_file_number
] = string
;
2884 /* Reinitialize for a new argument. */
2886 delete_this_arg
= 0;
2887 this_is_output_file
= 0;
2888 this_is_library_file
= 0;
2895 fatal ("Invalid specification! Bug in cc.");
2898 obstack_grow (&obstack
, input_basename
, basename_length
);
2903 delete_this_arg
= 2;
2906 /* Dump out the directories specified with LIBRARY_PATH,
2907 followed by the absolute directories
2908 that we search for startfiles. */
2911 struct prefix_list
*pl
= startfile_prefix
.plist
;
2913 char *buffer
= (char *) xmalloc (bufsize
);
2916 for (; pl
; pl
= pl
->next
)
2918 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2919 /* Used on systems which record the specified -L dirs
2920 and use them to search for dynamic linking. */
2921 /* Relative directories always come from -B,
2922 and it is better not to use them for searching
2923 at run time. In particular, stage1 loses */
2924 if (pl
->prefix
[0] != '/')
2929 if (is_directory (pl
->prefix
, machine_suffix
, 1))
2931 do_spec_1 ("-L", 0, NULL_PTR
);
2932 #ifdef SPACE_AFTER_L_OPTION
2933 do_spec_1 (" ", 0, NULL_PTR
);
2935 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
2936 /* Remove slash from machine_suffix. */
2937 if (strlen (machine_suffix
) >= bufsize
)
2938 bufsize
= strlen (machine_suffix
) * 2 + 1;
2939 buffer
= (char *) xrealloc (buffer
, bufsize
);
2940 strcpy (buffer
, machine_suffix
);
2941 idx
= strlen (buffer
);
2942 if (buffer
[idx
- 1] == '/')
2943 buffer
[idx
- 1] = 0;
2944 do_spec_1 (buffer
, 1, NULL_PTR
);
2945 /* Make this a separate argument. */
2946 do_spec_1 (" ", 0, NULL_PTR
);
2949 if (!pl
->require_machine_suffix
)
2951 if (is_directory (pl
->prefix
, "", 1))
2953 do_spec_1 ("-L", 0, NULL_PTR
);
2954 #ifdef SPACE_AFTER_L_OPTION
2955 do_spec_1 (" ", 0, NULL_PTR
);
2957 /* Remove slash from pl->prefix. */
2958 if (strlen (pl
->prefix
) >= bufsize
)
2959 bufsize
= strlen (pl
->prefix
) * 2 + 1;
2960 buffer
= (char *) xrealloc (buffer
, bufsize
);
2961 strcpy (buffer
, pl
->prefix
);
2962 idx
= strlen (buffer
);
2963 if (buffer
[idx
- 1] == '/')
2964 buffer
[idx
- 1] = 0;
2965 do_spec_1 (buffer
, 1, NULL_PTR
);
2966 /* Make this a separate argument. */
2967 do_spec_1 (" ", 0, NULL_PTR
);
2976 /* {...:%efoo} means report an error with `foo' as error message
2977 and don't execute any more commands for this file. */
2981 while (*p
!= 0 && *p
!= '\n') p
++;
2982 buf
= (char *) alloca (p
- q
+ 1);
2983 strncpy (buf
, q
, p
- q
);
2993 if (save_temps_flag
)
2995 obstack_grow (&obstack
, input_basename
, basename_length
);
2996 delete_this_arg
= 0;
3000 #ifdef MKTEMP_EACH_FILE
3001 /* ??? This has a problem: the total number of
3002 values mktemp can return is limited.
3003 That matters for the names of object files.
3004 In 2.4, do something about that. */
3005 struct temp_name
*t
;
3007 while (*p
== '.' || isalpha (*p
))
3010 /* See if we already have an association of %g/%u/%U and
3012 for (t
= temp_names
; t
; t
= t
->next
)
3013 if (t
->length
== p
- suffix
3014 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3015 && t
->unique
== (c
!= 'g'))
3018 /* Make a new association if needed. %u requires one. */
3019 if (t
== 0 || c
== 'u')
3023 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3024 t
->next
= temp_names
;
3027 t
->length
= p
- suffix
;
3028 t
->suffix
= save_string (suffix
, p
- suffix
);
3029 t
->unique
= (c
!= 'g');
3030 choose_temp_base ();
3031 t
->filename
= temp_filename
;
3032 t
->filename_length
= temp_filename_length
;
3035 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3036 delete_this_arg
= 1;
3038 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3039 if (c
== 'u' || c
== 'U')
3045 sprintf (buff
, "%d", unique
);
3046 obstack_grow (&obstack
, buff
, strlen (buff
));
3049 delete_this_arg
= 1;
3055 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3061 struct prefix_list
*pl
= include_prefix
.plist
;
3063 if (gcc_exec_prefix
)
3065 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3066 /* Make this a separate argument. */
3067 do_spec_1 (" ", 0, NULL_PTR
);
3068 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3069 do_spec_1 (" ", 0, NULL_PTR
);
3072 for (; pl
; pl
= pl
->next
)
3074 do_spec_1 ("-isystem", 1, NULL_PTR
);
3075 /* Make this a separate argument. */
3076 do_spec_1 (" ", 0, NULL_PTR
);
3077 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3078 do_spec_1 (" ", 0, NULL_PTR
);
3086 for (f
= 0; f
< n_infiles
; f
++)
3087 store_arg (outfiles
[f
], 0, 0);
3092 this_is_library_file
= 1;
3096 this_is_output_file
= 1;
3101 int index
= argbuf_index
;
3102 /* Handle the {...} following the %W. */
3105 p
= handle_braces (p
+ 1);
3108 /* If any args were output, mark the last one for deletion
3110 if (argbuf_index
!= index
)
3111 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3115 /* %x{OPTION} records OPTION for %X to output. */
3121 /* Skip past the option value and make a copy. */
3126 string
= save_string (p1
+ 1, p
- p1
- 2);
3128 /* See if we already recorded this option. */
3129 for (i
= 0; i
< n_linker_options
; i
++)
3130 if (! strcmp (string
, linker_options
[i
]))
3136 /* This option is new; add it. */
3138 if (!linker_options
)
3140 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3143 = (char **) xrealloc (linker_options
,
3144 n_linker_options
* sizeof (char **));
3146 linker_options
[n_linker_options
- 1] = string
;
3150 /* Dump out the options accumulated previously using %x,
3151 -Xlinker and -Wl,. */
3153 for (i
= 0; i
< n_linker_options
; i
++)
3155 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3156 /* Make each accumulated option a separate argument. */
3157 do_spec_1 (" ", 0, NULL_PTR
);
3161 /* Dump out the options accumulated previously using -Wa,. */
3163 for (i
= 0; i
< n_assembler_options
; i
++)
3165 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3166 /* Make each accumulated option a separate argument. */
3167 do_spec_1 (" ", 0, NULL_PTR
);
3171 /* Here are digits and numbers that just process
3172 a certain constant string as a spec. */
3175 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3181 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3187 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3193 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3199 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3205 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3211 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3217 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3223 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3230 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3234 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3238 if (! strncmp (y
, "-D", 2))
3239 /* Copy the whole option. */
3240 while (*y
&& *y
!= ' ' && *y
!= '\t')
3242 else if (*y
== ' ' || *y
== '\t')
3243 /* Copy whitespace to the result. */
3245 /* Don't copy other options. */
3252 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3260 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3264 /* Copy all of CPP_PREDEFINES into BUF,
3265 but put __ after every -D and at the end of each arg. */
3269 if (! strncmp (y
, "-D", 2))
3276 if (strncmp (y
, "__", 2))
3278 /* Stick __ at front of macro name. */
3281 /* Arrange to stick __ at the end as well. */
3285 /* Copy the macro name. */
3286 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3295 /* Copy the value given, if any. */
3296 while (*y
&& *y
!= ' ' && *y
!= '\t')
3299 else if (*y
== ' ' || *y
== '\t')
3300 /* Copy whitespace to the result. */
3302 /* Don't copy -A options */
3308 /* Copy all of CPP_PREDEFINES into BUF,
3309 but put __ after every -D. */
3313 if (! strncmp (y
, "-D", 2))
3317 if (strncmp (y
, "__", 2))
3319 /* Stick -D__ at front of macro name. */
3325 /* Copy the macro name. */
3326 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3329 /* Copy the value given, if any. */
3330 while (*y
&& *y
!= ' ' && *y
!= '\t')
3335 /* Do not copy this macro - we have just done it before */
3336 while (*y
&& *y
!= ' ' && *y
!= '\t')
3340 else if (*y
== ' ' || *y
== '\t')
3341 /* Copy whitespace to the result. */
3343 /* Don't copy -A options */
3349 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3353 if (! strncmp (y
, "-A", 2))
3354 /* Copy the whole option. */
3355 while (*y
&& *y
!= ' ' && *y
!= '\t')
3357 else if (*y
== ' ' || *y
== '\t')
3358 /* Copy whitespace to the result. */
3360 /* Don't copy other options. */
3367 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3374 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3379 /* Here we define characters other than letters and digits. */
3382 p
= handle_braces (p
);
3388 obstack_1grow (&obstack
, '%');
3392 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3393 do_spec_1 (" ", 0, NULL_PTR
);
3396 /* Process a string found as the value of a spec given by name.
3397 This feature allows individual machine descriptions
3398 to add and use their own specs.
3399 %[...] modifies -D options the way %P does;
3400 %(...) uses the spec unmodified. */
3405 struct spec_list
*sl
;
3408 /* The string after the S/P is the name of a spec that is to be
3410 while (*p
&& *p
!= ')' && *p
!= ']')
3413 /* See if it's in the list */
3414 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3415 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3425 value
= do_spec_1 (name
, 0, NULL_PTR
);
3431 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3435 /* Copy all of NAME into BUF, but put __ after
3436 every -D and at the end of each arg, */
3439 if (! strncmp (y
, "-D", 2))
3447 else if (*y
== ' ' || *y
== 0)
3461 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3467 /* Discard the closing paren or bracket. */
3475 int c1
= *p
++; /* Select first or second version number. */
3476 char *v
= compiler_version
;
3478 /* If desired, advance to second version number. */
3481 /* Set P after the first period. */
3482 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3487 /* Set Q at the next period or at the end. */
3489 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3491 /* Empty string means zero. */
3497 /* Put that part into the command. */
3498 obstack_grow (&obstack
, v
, q
- v
);
3504 if (input_from_pipe
)
3505 do_spec_1 ("-", 0, NULL_PTR
);
3514 /* Backslash: treat next character as ordinary. */
3519 /* Ordinary character: put it into the current argument. */
3520 obstack_1grow (&obstack
, c
);
3524 return 0; /* End of string */
3527 /* Return 0 if we call do_spec_1 and that returns -1. */
3540 /* A `|' after the open-brace means,
3541 if the test fails, output a single minus sign rather than nothing.
3542 This is used in %{|!pipe:...}. */
3546 /* A `!' after the open-brace negates the condition:
3547 succeed if the specified switch is not present. */
3551 /* A `.' after the open-brace means test against the current suffix. */
3561 while (*p
!= ':' && *p
!= '}') p
++;
3564 register int count
= 1;
3582 int found
= (input_suffix
!= 0
3583 && strlen (input_suffix
) == p
- filter
3584 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3590 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3595 else if (p
[-1] == '*' && p
[0] == '}')
3597 /* Substitute all matching switches as separate args. */
3600 for (i
= 0; i
< n_switches
; i
++)
3601 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3602 && check_live_switch (i
, p
- filter
))
3607 /* Test for presence of the specified switch. */
3611 /* If name specified ends in *, as in {x*:...},
3612 check for %* and handle that case. */
3613 if (p
[-1] == '*' && !negate
)
3618 /* First see whether we have %*. */
3622 if (*r
== '%' && r
[1] == '*')
3626 /* If we do, handle that case. */
3629 /* Substitute all matching switches as separate args.
3630 But do this by substituting for %*
3631 in the text that follows the colon. */
3633 unsigned hard_match_len
= p
- filter
- 1;
3634 char *string
= save_string (p
+ 1, q
- p
- 2);
3636 for (i
= 0; i
< n_switches
; i
++)
3637 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3638 && check_live_switch (i
, -1))
3640 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3641 /* Pass any arguments this switch has. */
3649 /* If name specified ends in *, as in {x*:...},
3650 check for presence of any switch name starting with x. */
3653 for (i
= 0; i
< n_switches
; i
++)
3655 unsigned hard_match_len
= p
- filter
- 1;
3657 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3658 && check_live_switch (i
, hard_match_len
))
3664 /* Otherwise, check for presence of exact name specified. */
3667 for (i
= 0; i
< n_switches
; i
++)
3669 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3670 && switches
[i
].part1
[p
- filter
] == 0
3671 && check_live_switch (i
, -1))
3679 /* If it is as desired (present for %{s...}, absent for %{-s...})
3680 then substitute either the switch or the specified
3681 conditional text. */
3682 if (present
!= negate
)
3690 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3696 /* Here if a %{|...} conditional fails: output a minus sign,
3697 which means "standard output" or "standard input". */
3698 do_spec_1 ("-", 0, NULL_PTR
);
3705 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3706 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3707 spec, or -1 if either exact match or %* is used.
3709 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3710 whose value does not begin with "no-" is obsoleted by the same value
3711 with the "no-", similarly for a switch with the "no-" prefix. */
3714 check_live_switch (switchnum
, prefix_length
)
3718 char *name
= switches
[switchnum
].part1
;
3721 /* In the common case of {<at-most-one-letter>*}, a negating
3722 switch would always match, so ignore that case. We will just
3723 send the conflicting switches to the compiler phase. */
3724 if (prefix_length
>= 0 && prefix_length
<= 1)
3727 /* If we already processed this switch and determined if it was
3728 live or not, return our past determination. */
3729 if (switches
[switchnum
].live_cond
!= 0)
3730 return switches
[switchnum
].live_cond
> 0;
3732 /* Now search for duplicate in a manner that depends on the name. */
3736 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3737 if (switches
[i
].part1
[0] == 'O')
3739 switches
[switchnum
].valid
= 1;
3740 switches
[switchnum
].live_cond
= -1;
3745 case 'W': case 'f': case 'm':
3746 if (! strncmp (name
+ 1, "no-", 3))
3748 /* We have Xno-YYY, search for XYYY. */
3749 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3750 if (switches
[i
].part1
[0] == name
[0]
3751 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
3753 switches
[switchnum
].valid
= 1;
3754 switches
[switchnum
].live_cond
= -1;
3760 /* We have XYYY, search for Xno-YYY. */
3761 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3762 if (switches
[i
].part1
[0] == name
[0]
3763 && switches
[i
].part1
[1] == 'n'
3764 && switches
[i
].part1
[2] == 'o'
3765 && switches
[i
].part1
[3] == '-'
3766 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
3768 switches
[switchnum
].valid
= 1;
3769 switches
[switchnum
].live_cond
= -1;
3776 /* Otherwise the switch is live. */
3777 switches
[switchnum
].live_cond
= 1;
3781 /* Pass a switch to the current accumulating command
3782 in the same form that we received it.
3783 SWITCHNUM identifies the switch; it is an index into
3784 the vector of switches gcc received, which is `switches'.
3785 This cannot fail since it never finishes a command line.
3787 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3790 give_switch (switchnum
, omit_first_word
)
3792 int omit_first_word
;
3794 if (!omit_first_word
)
3796 do_spec_1 ("-", 0, NULL_PTR
);
3797 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
3799 do_spec_1 (" ", 0, NULL_PTR
);
3800 if (switches
[switchnum
].args
!= 0)
3803 for (p
= switches
[switchnum
].args
; *p
; p
++)
3805 do_spec_1 (*p
, 1, NULL_PTR
);
3806 do_spec_1 (" ", 0, NULL_PTR
);
3809 switches
[switchnum
].valid
= 1;
3812 /* Search for a file named NAME trying various prefixes including the
3813 user's -B prefix and some standard ones.
3814 Return the absolute file name found. If nothing is found, return NAME. */
3822 newname
= find_a_file (&startfile_prefix
, name
, R_OK
);
3823 return newname
? newname
: name
;
3826 /* Determine whether a directory exists. If LINKER, return 0 for
3827 certain fixed names not needed by the linker. If not LINKER, it is
3828 only important to return 0 if the host machine has a small ARG_MAX
3832 is_directory (path1
, path2
, linker
)
3837 int len1
= strlen (path1
);
3838 int len2
= strlen (path2
);
3839 char *path
= (char *) alloca (3 + len1
+ len2
);
3843 #ifndef SMALL_ARG_MAX
3848 /* Construct the path from the two parts. Ensure the string ends with "/.".
3849 The resulting path will be a directory even if the given path is a
3851 bcopy (path1
, path
, len1
);
3852 bcopy (path2
, path
+ len1
, len2
);
3853 cp
= path
+ len1
+ len2
;
3859 /* Exclude directories that the linker is known to search. */
3861 && ((cp
- path
== 6 && strcmp (path
, "/lib/.") == 0)
3862 || (cp
- path
== 10 && strcmp (path
, "/usr/lib/.") == 0)))
3865 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
3868 /* On fatal signals, delete all the temporary files. */
3871 fatal_error (signum
)
3874 signal (signum
, SIG_DFL
);
3875 delete_failure_queue ();
3876 delete_temp_files ();
3877 /* Get the same signal again, this time not handled,
3878 so its normal effect occurs. */
3879 kill (getpid (), signum
);
3890 int linker_was_run
= 0;
3891 char *explicit_link_files
;
3895 p
= argv
[0] + strlen (argv
[0]);
3896 while (p
!= argv
[0] && p
[-1] != '/') --p
;
3899 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
3900 signal (SIGINT
, fatal_error
);
3902 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
3903 signal (SIGHUP
, fatal_error
);
3905 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
3906 signal (SIGTERM
, fatal_error
);
3908 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
3909 signal (SIGPIPE
, fatal_error
);
3913 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
3915 obstack_init (&obstack
);
3917 /* Set up to remember the pathname of gcc and any options
3918 needed for collect. We use argv[0] instead of programname because
3919 we need the complete pathname. */
3920 obstack_init (&collect_obstack
);
3921 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3922 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
3923 putenv (obstack_finish (&collect_obstack
));
3925 /* Choose directory for temp files. */
3927 choose_temp_base ();
3929 /* Make a table of what switches there are (switches, n_switches).
3930 Make a table of specified input files (infiles, n_infiles).
3931 Decode switches that are handled locally. */
3933 process_command (argc
, argv
);
3935 /* Initialize the vector of specs to just the default.
3936 This means one element containing 0s, as a terminator. */
3938 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
3939 bcopy (default_compilers
, compilers
, sizeof default_compilers
);
3940 n_compilers
= n_default_compilers
;
3942 /* Read specs from a file if there is one. */
3944 machine_suffix
= concat (spec_machine
, "/", concat (spec_version
, "/", ""));
3945 just_machine_suffix
= concat (spec_machine
, "/", "");
3947 specs_file
= find_a_file (&startfile_prefix
, "specs", R_OK
);
3948 /* Read the specs file unless it is a default one. */
3949 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
3950 read_specs (specs_file
);
3952 /* If not cross-compiling, look for startfiles in the standard places. */
3953 /* The fact that these are done here, after reading the specs file,
3954 means that it cannot be found in these directories.
3955 But that's okay. It should never be there anyway. */
3958 #ifdef MD_EXEC_PREFIX
3959 add_prefix (&exec_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3960 add_prefix (&startfile_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3963 #ifdef MD_STARTFILE_PREFIX
3964 add_prefix (&startfile_prefix
, md_startfile_prefix
, 0, 0, NULL_PTR
);
3967 #ifdef MD_STARTFILE_PREFIX_1
3968 add_prefix (&startfile_prefix
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
3971 /* If standard_startfile_prefix is relative, base it on
3972 standard_exec_prefix. This lets us move the installed tree
3973 as a unit. If GCC_EXEC_PREFIX is defined, base
3974 standard_startfile_prefix on that as well. */
3975 if (*standard_startfile_prefix
== '/')
3976 add_prefix (&startfile_prefix
, standard_startfile_prefix
, 0, 0,
3980 if (gcc_exec_prefix
)
3981 add_prefix (&startfile_prefix
,
3982 concat (gcc_exec_prefix
,
3983 standard_startfile_prefix
,
3986 add_prefix (&startfile_prefix
,
3987 concat (standard_exec_prefix
,
3989 standard_startfile_prefix
),
3993 add_prefix (&startfile_prefix
, standard_startfile_prefix_1
, 0, 0,
3995 add_prefix (&startfile_prefix
, standard_startfile_prefix_2
, 0, 0,
3997 #if 0 /* Can cause surprises, and one can use -B./ instead. */
3998 add_prefix (&startfile_prefix
, "./", 0, 1, NULL_PTR
);
4002 /* Now we have the specs.
4003 Set the `valid' bits for switches that match anything in any spec. */
4005 validate_all_switches ();
4007 /* Warn about any switches that no pass was interested in. */
4009 for (i
= 0; i
< n_switches
; i
++)
4010 if (! switches
[i
].valid
)
4011 error ("unrecognized option `-%s'", switches
[i
].part1
);
4013 /* Obey some of the options. */
4015 if (print_file_name
)
4017 printf ("%s\n", find_file (print_file_name
));
4021 if (print_prog_name
)
4023 char *newname
= find_a_file (&exec_prefix
, print_prog_name
, X_OK
);
4024 printf ("%s\n", (newname
? newname
: print_prog_name
));
4030 fprintf (stderr
, "gcc version %s\n", version_string
);
4036 fatal ("No input files");
4038 /* Make a place to record the compiler output file names
4039 that correspond to the input files. */
4041 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4042 bzero (outfiles
, n_infiles
* sizeof (char *));
4044 /* Record which files were specified explicitly as link input. */
4046 explicit_link_files
= xmalloc (n_infiles
);
4047 bzero (explicit_link_files
, n_infiles
);
4049 for (i
= 0; i
< n_infiles
; i
++)
4051 register struct compiler
*cp
= 0;
4052 int this_file_error
= 0;
4054 /* Tell do_spec what to substitute for %i. */
4056 input_filename
= infiles
[i
].name
;
4057 input_filename_length
= strlen (input_filename
);
4058 input_file_number
= i
;
4060 /* Use the same thing in %o, unless cp->spec says otherwise. */
4062 outfiles
[i
] = input_filename
;
4064 /* Figure out which compiler from the file's suffix. */
4066 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4067 infiles
[i
].language
);
4071 /* Ok, we found an applicable compiler. Run its spec. */
4072 /* First say how much of input_filename to substitute for %b */
4076 input_basename
= input_filename
;
4077 for (p
= input_filename
; *p
; p
++)
4079 input_basename
= p
+ 1;
4081 /* Find a suffix starting with the last period,
4082 and set basename_length to exclude that suffix. */
4083 basename_length
= strlen (input_basename
);
4084 p
= input_basename
+ basename_length
;
4085 while (p
!= input_basename
&& *p
!= '.') --p
;
4086 if (*p
== '.' && p
!= input_basename
)
4088 basename_length
= p
- input_basename
;
4089 input_suffix
= p
+ 1;
4095 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4097 len
+= strlen (cp
->spec
[j
]);
4099 p
= (char *) xmalloc (len
+ 1);
4102 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4105 strcpy (p
+ len
, cp
->spec
[j
]);
4106 len
+= strlen (cp
->spec
[j
]);
4109 value
= do_spec (p
);
4112 this_file_error
= 1;
4115 /* If this file's name does not contain a recognized suffix,
4116 record it as explicit linker input. */
4119 explicit_link_files
[i
] = 1;
4121 /* Clear the delete-on-failure queue, deleting the files in it
4122 if this compilation failed. */
4124 if (this_file_error
)
4126 delete_failure_queue ();
4129 /* If this compilation succeeded, don't delete those files later. */
4130 clear_failure_queue ();
4133 /* Run ld to link all the compiler output files. */
4135 if (error_count
== 0)
4137 int tmp
= execution_count
;
4141 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4143 putenv_from_prefixes (&exec_prefix
, "COMPILER_PATH=");
4144 putenv_from_prefixes (&startfile_prefix
, "LIBRARY_PATH=");
4146 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4148 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4149 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4152 for (i
= 0; i
< n_switches
; i
++)
4156 obstack_grow (&collect_obstack
, " ", 1);
4159 obstack_grow (&collect_obstack
, "-", 1);
4160 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4161 strlen (switches
[i
].part1
));
4163 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4165 obstack_grow (&collect_obstack
, " ", 1);
4166 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4169 obstack_grow (&collect_obstack
, "\0", 1);
4170 putenv (obstack_finish (&collect_obstack
));
4172 value
= do_spec (link_command_spec
);
4175 linker_was_run
= (tmp
!= execution_count
);
4178 /* Warn if a -B option was specified but the prefix was never used. */
4179 unused_prefix_warnings (&exec_prefix
);
4180 unused_prefix_warnings (&startfile_prefix
);
4182 /* If options said don't run linker,
4183 complain about input files to be given to the linker. */
4185 if (! linker_was_run
&& error_count
== 0)
4186 for (i
= 0; i
< n_infiles
; i
++)
4187 if (explicit_link_files
[i
])
4188 error ("%s: linker input file unused since linking not done",
4191 /* Delete some or all of the temporary files we made. */
4194 delete_failure_queue ();
4195 delete_temp_files ();
4197 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4202 /* Find the proper compilation spec for the file name NAME,
4203 whose length is LENGTH. LANGUAGE is the specified language,
4204 or 0 if none specified. */
4206 static struct compiler
*
4207 lookup_compiler (name
, length
, language
)
4212 struct compiler
*cp
;
4214 /* Look for the language, if one is spec'd. */
4217 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4221 if (cp
->suffix
[0] == '@'
4222 && !strcmp (cp
->suffix
+ 1, language
))
4226 error ("language %s not recognized", language
);
4229 /* Look for a suffix. */
4230 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4232 if (/* The suffix `-' matches only the file name `-'. */
4233 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4235 (strlen (cp
->suffix
) < length
4236 /* See if the suffix matches the end of NAME. */
4237 && !strcmp (cp
->suffix
,
4238 name
+ length
- strlen (cp
->suffix
))))
4240 if (cp
->spec
[0][0] == '@')
4242 struct compiler
*new;
4243 /* An alias entry maps a suffix to a language.
4244 Search for the language; pass 0 for NAME and LENGTH
4245 to avoid infinite recursion if language not found.
4246 Construct the new compiler spec. */
4247 language
= cp
->spec
[0] + 1;
4248 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4249 new->suffix
= cp
->suffix
;
4250 bcopy (lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4251 new->spec
, sizeof new->spec
);
4254 /* A non-alias entry: return it. */
4266 register char *value
= (char *) malloc (size
);
4268 fatal ("virtual memory exhausted");
4273 xrealloc (ptr
, size
)
4277 register char *value
= (char *) realloc (ptr
, size
);
4279 fatal ("virtual memory exhausted");
4283 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4289 int len1
= strlen (s1
), len2
= strlen (s2
), len3
= strlen (s3
);
4290 char *result
= xmalloc (len1
+ len2
+ len3
+ 1);
4292 strcpy (result
, s1
);
4293 strcpy (result
+ len1
, s2
);
4294 strcpy (result
+ len1
+ len2
, s3
);
4295 *(result
+ len1
+ len2
+ len3
) = 0;
4301 save_string (s
, len
)
4305 register char *result
= xmalloc (len
+ 1);
4307 bcopy (s
, result
, len
);
4313 pfatal_with_name (name
)
4318 if (errno
< sys_nerr
)
4319 s
= concat ("%s: ", sys_errlist
[errno
], "");
4321 s
= "cannot open %s";
4326 perror_with_name (name
)
4331 if (errno
< sys_nerr
)
4332 s
= concat ("%s: ", sys_errlist
[errno
], "");
4334 s
= "cannot open %s";
4344 if (errno
< sys_nerr
)
4345 s
= concat ("installation problem, cannot exec %s: ",
4346 sys_errlist
[errno
], "");
4348 s
= "installation problem, cannot exec %s";
4352 /* More 'friendly' abort that prints the line and file.
4353 config.h can #define abort fancy_abort if you like that sort of thing. */
4358 fatal ("Internal gcc abort.");
4363 /* Output an error message and exit */
4366 fatal
VPROTO((char *format
, ...))
4373 VA_START (ap
, format
);
4376 format
= va_arg (ap
, char*);
4379 fprintf (stderr
, "%s: ", programname
);
4380 vfprintf (stderr
, format
, ap
);
4382 fprintf (stderr
, "\n");
4383 delete_temp_files ();
4388 error
VPROTO((char *format
, ...))
4395 VA_START (ap
, format
);
4398 format
= va_arg (ap
, char*);
4401 fprintf (stderr
, "%s: ", programname
);
4402 vfprintf (stderr
, format
, ap
);
4405 fprintf (stderr
, "\n");
4408 #else /* not HAVE_VPRINTF */
4411 fatal (msg
, arg1
, arg2
)
4412 char *msg
, *arg1
, *arg2
;
4414 error (msg
, arg1
, arg2
);
4415 delete_temp_files ();
4420 error (msg
, arg1
, arg2
)
4421 char *msg
, *arg1
, *arg2
;
4423 fprintf (stderr
, "%s: ", programname
);
4424 fprintf (stderr
, msg
, arg1
, arg2
);
4425 fprintf (stderr
, "\n");
4428 #endif /* not HAVE_VPRINTF */
4432 validate_all_switches ()
4434 struct compiler
*comp
;
4437 struct spec_list
*spec
;
4439 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4442 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4446 if (c
== '%' && *p
== '{')
4447 /* We have a switch spec. */
4448 validate_switches (p
+ 1);
4452 /* look through the linked list of extra specs read from the specs file */
4453 for (spec
= specs
; spec
; spec
= spec
->next
)
4457 if (c
== '%' && *p
== '{')
4458 /* We have a switch spec. */
4459 validate_switches (p
+ 1);
4462 p
= link_command_spec
;
4464 if (c
== '%' && *p
== '{')
4465 /* We have a switch spec. */
4466 validate_switches (p
+ 1);
4468 /* Now notice switches mentioned in the machine-specific specs. */
4472 if (c
== '%' && *p
== '{')
4473 /* We have a switch spec. */
4474 validate_switches (p
+ 1);
4478 if (c
== '%' && *p
== '{')
4479 /* We have a switch spec. */
4480 validate_switches (p
+ 1);
4484 if (c
== '%' && *p
== '{')
4485 /* We have a switch spec. */
4486 validate_switches (p
+ 1);
4488 p
= signed_char_spec
;
4490 if (c
== '%' && *p
== '{')
4491 /* We have a switch spec. */
4492 validate_switches (p
+ 1);
4496 if (c
== '%' && *p
== '{')
4497 /* We have a switch spec. */
4498 validate_switches (p
+ 1);
4502 if (c
== '%' && *p
== '{')
4503 /* We have a switch spec. */
4504 validate_switches (p
+ 1);
4508 if (c
== '%' && *p
== '{')
4509 /* We have a switch spec. */
4510 validate_switches (p
+ 1);
4514 if (c
== '%' && *p
== '{')
4515 /* We have a switch spec. */
4516 validate_switches (p
+ 1);
4520 if (c
== '%' && *p
== '{')
4521 /* We have a switch spec. */
4522 validate_switches (p
+ 1);
4525 /* Look at the switch-name that comes after START
4526 and mark as valid all supplied switches that match it. */
4529 validate_switches (start
)
4532 register char *p
= start
;
4547 while (*p
!= ':' && *p
!= '}') p
++;
4551 else if (p
[-1] == '*')
4553 /* Mark all matching switches as valid. */
4555 for (i
= 0; i
< n_switches
; i
++)
4556 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4557 switches
[i
].valid
= 1;
4561 /* Mark an exact matching switch as valid. */
4562 for (i
= 0; i
< n_switches
; i
++)
4564 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4565 && switches
[i
].part1
[p
- filter
] == 0)
4566 switches
[i
].valid
= 1;