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} %{MG}\
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} %{MG}\
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} %{MG}\
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} %{MG}\
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} %{MG}\
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} %{MG} %{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 {"--print-missing-file-dependencies", "-MG", 0},
769 {"--optimize", "-O", "oj"},
770 {"--no-line-commands", "-P", 0},
771 {"--assemble", "-S", 0},
772 {"--undefine-macro", "-U", "a"},
773 {"--use-version", "-V", "a"},
774 {"--for-assembler", "-Wa", "a"},
775 {"--extra-warnings", "-W", 0},
776 {"--all-warnings", "-Wall", 0},
777 {"--warn-", "-W", "*j"},
778 {"--for-linker", "-Xlinker", "a"},
780 {"--ansi", "-ansi", 0},
781 {"--traditional", "-traditional", 0},
782 {"--traditional-cpp", "-traditional-cpp", 0},
783 {"--trigraphs", "-trigraphs", 0},
784 {"--pipe", "-pipe", 0},
785 {"--dumpbase", "-dumpbase", "a"},
786 {"--pedantic", "-pedantic", 0},
787 {"--pedantic-errors", "-pedantic-errors", 0},
788 {"--save-temps", "-save-temps", 0},
789 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
790 {"--print-file-name", "-print-file-name=", "aj"},
791 {"--print-prog-name", "-print-prog-name=", "aj"},
792 {"--static", "-static", 0},
793 {"--shared", "-shared", 0},
794 {"--symbolic", "-symbolic", 0},
798 /* Translate the options described by *ARGCP and *ARGVP.
799 Make a new vector and store it back in *ARGVP,
800 and store its length in *ARGVC. */
803 translate_options (argcp
, argvp
)
809 char **argv
= *argvp
;
810 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
814 newv
[newindex
++] = argv
[i
++];
818 /* Translate -- options. */
819 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
821 /* Find a mapping that applies to this option. */
822 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
824 int optlen
= strlen (option_map
[j
].name
);
825 int complen
= strlen (argv
[i
]);
826 char *arginfo
= option_map
[j
].arg_info
;
830 if (complen
> optlen
)
832 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
834 int extra
= strlen (argv
[i
]) > optlen
;
839 /* If the option has an argument, accept that. */
840 if (argv
[i
][optlen
] == '=')
841 arg
= argv
[i
] + optlen
+ 1;
842 /* If this mapping allows extra text at end of name,
843 accept that as "argument". */
844 else if (index (arginfo
, '*') != 0)
845 arg
= argv
[i
] + optlen
;
846 /* Otherwise, extra text at end means mismatch.
847 Try other mappings. */
851 else if (index (arginfo
, '*') != 0)
852 error ("Incomplete `%s' option", option_map
[j
].name
);
854 /* Handle arguments. */
855 if (index (arginfo
, 'o') != 0)
860 error ("Missing argument to `%s' option",
865 else if (index (arginfo
, '*') != 0)
867 else if (index (arginfo
, 'a') == 0)
870 error ("Extraneous argument to `%s' option",
875 /* Store the translation as one argv elt or as two. */
876 if (arg
!= 0 && index (arginfo
, 'j') != 0)
877 newv
[newindex
++] = concat (option_map
[j
].equivalent
,
881 newv
[newindex
++] = option_map
[j
].equivalent
;
882 newv
[newindex
++] = arg
;
885 newv
[newindex
++] = option_map
[j
].equivalent
;
892 /* Handle old-fashioned options--just copy them through,
893 with their arguments. */
894 else if (argv
[i
][0] == '-')
896 char *p
= argv
[i
] + 1;
900 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
901 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
902 else if (WORD_SWITCH_TAKES_ARG (p
))
903 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
904 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
907 else if (! strcmp (p
, "Xlinker"))
910 /* Watch out for an option at the end of the command line that
911 is missing arguments, and avoid skipping past the end of the
913 if (nskip
+ i
> argc
)
918 newv
[newindex
++] = argv
[i
++];
923 /* Ordinary operands, or +e options. */
924 newv
[newindex
++] = argv
[i
++];
933 /* Read compilation specs from a file named FILENAME,
934 replacing the default ones.
936 A suffix which starts with `*' is a definition for
937 one of the machine-specific sub-specs. The "suffix" should be
938 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
939 The corresponding spec is stored in asm_spec, etc.,
940 rather than in the `compilers' vector.
942 Anything invalid in the file is a fatal error. */
945 read_specs (filename
)
954 fprintf (stderr
, "Reading specs from %s\n", filename
);
956 /* Open and stat the file. */
957 desc
= open (filename
, 0, 0);
959 pfatal_with_name (filename
);
960 if (stat (filename
, &statbuf
) < 0)
961 pfatal_with_name (filename
);
963 /* Read contents of file into BUFFER. */
964 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
965 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
966 buffer
[statbuf
.st_size
] = 0;
969 /* Scan BUFFER for specs, putting them in the vector. */
975 char *in
, *out
, *p1
, *p2
;
977 /* Advance P in BUFFER to the next nonblank nocomment line. */
978 p
= skip_whitespace (p
);
982 /* Find the colon that should end the suffix. */
984 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
985 /* The colon shouldn't be missing. */
987 fatal ("specs file malformed after %d characters", p1
- buffer
);
988 /* Skip back over trailing whitespace. */
990 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
991 /* Copy the suffix to a string. */
992 suffix
= save_string (p
, p2
- p
);
993 /* Find the next line. */
994 p
= skip_whitespace (p1
+ 1);
996 fatal ("specs file malformed after %d characters", p
- buffer
);
998 /* Find next blank line. */
999 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1000 /* Specs end at the blank line and do not include the newline. */
1001 spec
= save_string (p
, p1
- p
);
1004 /* Delete backslash-newline sequences from the spec. */
1009 if (in
[0] == '\\' && in
[1] == '\n')
1011 else if (in
[0] == '#')
1013 while (*in
&& *in
!= '\n') in
++;
1020 if (suffix
[0] == '*')
1022 if (! strcmp (suffix
, "*link_command"))
1023 link_command_spec
= spec
;
1025 set_spec (suffix
+ 1, spec
);
1029 /* Add this pair to the vector. */
1031 = ((struct compiler
*)
1032 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1033 compilers
[n_compilers
].suffix
= suffix
;
1034 bzero (compilers
[n_compilers
].spec
,
1035 sizeof compilers
[n_compilers
].spec
);
1036 compilers
[n_compilers
].spec
[0] = spec
;
1038 bzero (&compilers
[n_compilers
], sizeof compilers
[n_compilers
]);
1042 link_command_spec
= spec
;
1045 if (link_command_spec
== 0)
1046 fatal ("spec file has no spec for linking");
1055 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1056 be considered whitespace. */
1057 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1059 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1063 while (*p
!= '\n') p
++;
1073 /* Structure to keep track of the specs that have been defined so far. These
1074 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1078 char *name
; /* Name of the spec. */
1079 char *spec
; /* The spec itself. */
1080 struct spec_list
*next
; /* Next spec in linked list. */
1083 /* List of specs that have been defined so far. */
1085 static struct spec_list
*specs
= (struct spec_list
*) 0;
1087 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1088 removed; If the spec starts with a + then SPEC is added to the end of the
1092 set_spec (name
, spec
)
1096 struct spec_list
*sl
;
1099 /* See if the spec already exists */
1100 for (sl
= specs
; sl
; sl
= sl
->next
)
1101 if (strcmp (sl
->name
, name
) == 0)
1106 /* Not found - make it */
1107 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1108 sl
->name
= save_string (name
, strlen (name
));
1109 sl
->spec
= save_string ("", 0);
1114 old_spec
= sl
->spec
;
1115 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1116 sl
->spec
= concat (old_spec
, spec
+ 1, "");
1118 sl
->spec
= save_string (spec
, strlen (spec
));
1120 if (! strcmp (name
, "asm"))
1121 asm_spec
= sl
->spec
;
1122 else if (! strcmp (name
, "asm_final"))
1123 asm_final_spec
= sl
->spec
;
1124 else if (! strcmp (name
, "cc1"))
1125 cc1_spec
= sl
->spec
;
1126 else if (! strcmp (name
, "cc1plus"))
1127 cc1plus_spec
= sl
->spec
;
1128 else if (! strcmp (name
, "cpp"))
1129 cpp_spec
= sl
->spec
;
1130 else if (! strcmp (name
, "endfile"))
1131 endfile_spec
= sl
->spec
;
1132 else if (! strcmp (name
, "lib"))
1133 lib_spec
= sl
->spec
;
1134 else if (! strcmp (name
, "link"))
1135 link_spec
= sl
->spec
;
1136 else if (! strcmp (name
, "predefines"))
1137 cpp_predefines
= sl
->spec
;
1138 else if (! strcmp (name
, "signed_char"))
1139 signed_char_spec
= sl
->spec
;
1140 else if (! strcmp (name
, "startfile"))
1141 startfile_spec
= sl
->spec
;
1142 else if (! strcmp (name
, "switches_need_spaces"))
1143 switches_need_spaces
= sl
->spec
;
1144 else if (! strcmp (name
, "cross_compile"))
1145 cross_compile
= atoi (sl
->spec
);
1146 /* Free the old spec */
1151 /* Accumulate a command (program name and args), and run it. */
1153 /* Vector of pointers to arguments in the current line of specifications. */
1155 static char **argbuf
;
1157 /* Number of elements allocated in argbuf. */
1159 static int argbuf_length
;
1161 /* Number of elements in argbuf currently in use (containing args). */
1163 static int argbuf_index
;
1165 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1166 temp file. Used only if MKTEMP_EACH_FILE. */
1168 static struct temp_name
{
1169 char *suffix
; /* suffix associated with the code. */
1170 int length
; /* strlen (suffix). */
1171 int unique
; /* Indicates whether %g or %u/%U was used. */
1172 char *filename
; /* associated filename. */
1173 int filename_length
; /* strlen (filename). */
1174 struct temp_name
*next
;
1177 /* Number of commands executed so far. */
1179 static int execution_count
;
1181 /* Number of commands that exited with a signal. */
1183 static int signal_count
;
1185 /* Name with which this program was invoked. */
1187 static char *programname
;
1189 /* Structures to keep track of prefixes to try when looking for files. */
1193 char *prefix
; /* String to prepend to the path. */
1194 struct prefix_list
*next
; /* Next in linked list. */
1195 int require_machine_suffix
; /* Don't use without machine_suffix. */
1196 /* 2 means try both machine_suffix and just_machine_suffix. */
1197 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1202 struct prefix_list
*plist
; /* List of prefixes to try */
1203 int max_len
; /* Max length of a prefix in PLIST */
1204 char *name
; /* Name of this list (used in config stuff) */
1207 /* List of prefixes to try when looking for executables. */
1209 static struct path_prefix exec_prefix
= { 0, 0, "exec" };
1211 /* List of prefixes to try when looking for startup (crt0) files. */
1213 static struct path_prefix startfile_prefix
= { 0, 0, "startfile" };
1215 /* List of prefixes to try when looking for include files. */
1217 static struct path_prefix include_prefix
= { 0, 0, "include" };
1219 /* Suffix to attach to directories searched for commands.
1220 This looks like `MACHINE/VERSION/'. */
1222 static char *machine_suffix
= 0;
1224 /* Suffix to attach to directories searched for commands.
1225 This is just `MACHINE/'. */
1227 static char *just_machine_suffix
= 0;
1229 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1231 static char *gcc_exec_prefix
;
1233 /* Default prefixes to attach to command names. */
1235 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1236 #undef MD_EXEC_PREFIX
1237 #undef MD_STARTFILE_PREFIX
1238 #undef MD_STARTFILE_PREFIX_1
1241 #ifndef STANDARD_EXEC_PREFIX
1242 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1243 #endif /* !defined STANDARD_EXEC_PREFIX */
1245 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1246 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1247 #ifdef MD_EXEC_PREFIX
1248 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1251 #ifndef STANDARD_STARTFILE_PREFIX
1252 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1253 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1255 #ifdef MD_STARTFILE_PREFIX
1256 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1258 #ifdef MD_STARTFILE_PREFIX_1
1259 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1261 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1262 static char *standard_startfile_prefix_1
= "/lib/";
1263 static char *standard_startfile_prefix_2
= "/usr/lib/";
1265 #ifndef TOOLDIR_BASE_PREFIX
1266 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1268 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1269 static char *tooldir_prefix
;
1271 /* Clear out the vector of arguments (after a command is executed). */
1279 /* Add one argument to the vector at the end.
1280 This is done when a space is seen or at the end of the line.
1281 If DELETE_ALWAYS is nonzero, the arg is a filename
1282 and the file should be deleted eventually.
1283 If DELETE_FAILURE is nonzero, the arg is a filename
1284 and the file should be deleted if this compilation fails. */
1287 store_arg (arg
, delete_always
, delete_failure
)
1289 int delete_always
, delete_failure
;
1291 if (argbuf_index
+ 1 == argbuf_length
)
1293 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1296 argbuf
[argbuf_index
++] = arg
;
1297 argbuf
[argbuf_index
] = 0;
1299 if (delete_always
|| delete_failure
)
1300 record_temp_file (arg
, delete_always
, delete_failure
);
1303 /* Record the names of temporary files we tell compilers to write,
1304 and delete them at the end of the run. */
1306 /* This is the common prefix we use to make temp file names.
1307 It is chosen once for each run of this program.
1308 It is substituted into a spec by %g.
1309 Thus, all temp file names contain this prefix.
1310 In practice, all temp file names start with this prefix.
1312 This prefix comes from the envvar TMPDIR if it is defined;
1313 otherwise, from the P_tmpdir macro if that is defined;
1314 otherwise, in /usr/tmp or /tmp. */
1316 static char *temp_filename
;
1318 /* Length of the prefix. */
1320 static int temp_filename_length
;
1322 /* Define the list of temporary files to delete. */
1327 struct temp_file
*next
;
1330 /* Queue of files to delete on success or failure of compilation. */
1331 static struct temp_file
*always_delete_queue
;
1332 /* Queue of files to delete on failure of compilation. */
1333 static struct temp_file
*failure_delete_queue
;
1335 /* Record FILENAME as a file to be deleted automatically.
1336 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1337 otherwise delete it in any case.
1338 FAIL_DELETE nonzero means delete it if a compilation step fails;
1339 otherwise delete it in any case. */
1342 record_temp_file (filename
, always_delete
, fail_delete
)
1347 register char *name
;
1348 name
= xmalloc (strlen (filename
) + 1);
1349 strcpy (name
, filename
);
1353 register struct temp_file
*temp
;
1354 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1355 if (! strcmp (name
, temp
->name
))
1357 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1358 temp
->next
= always_delete_queue
;
1360 always_delete_queue
= temp
;
1366 register struct temp_file
*temp
;
1367 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1368 if (! strcmp (name
, temp
->name
))
1370 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1371 temp
->next
= failure_delete_queue
;
1373 failure_delete_queue
= temp
;
1378 /* Delete all the temporary files whose names we previously recorded. */
1381 delete_if_ordinary (name
)
1388 printf ("Delete %s? (y or n) ", name
);
1392 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1393 if (i
== 'y' || i
== 'Y')
1395 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1396 if (unlink (name
) < 0)
1398 perror_with_name (name
);
1402 delete_temp_files ()
1404 register struct temp_file
*temp
;
1406 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1407 delete_if_ordinary (temp
->name
);
1408 always_delete_queue
= 0;
1411 /* Delete all the files to be deleted on error. */
1414 delete_failure_queue ()
1416 register struct temp_file
*temp
;
1418 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1419 delete_if_ordinary (temp
->name
);
1423 clear_failure_queue ()
1425 failure_delete_queue
= 0;
1428 /* Compute a string to use as the base of all temporary file names.
1429 It is substituted for %g. */
1432 choose_temp_base_try (try, base
)
1439 else if (try == (char *)0)
1441 else if (access (try, R_OK
| W_OK
) != 0)
1454 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1455 base
= choose_temp_base_try (getenv ("TMP"), base
);
1456 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1459 base
= choose_temp_base_try (P_tmpdir
, base
);
1462 base
= choose_temp_base_try ("/usr/tmp", base
);
1463 base
= choose_temp_base_try ("/tmp", base
);
1465 /* If all else fails, use the current directory! */
1466 if (base
== (char *)0)
1469 len
= strlen (base
);
1470 temp_filename
= xmalloc (len
+ sizeof("/ccXXXXXX") + 1);
1471 strcpy (temp_filename
, base
);
1472 if (len
> 0 && temp_filename
[len
-1] != '/')
1473 temp_filename
[len
++] = '/';
1474 strcpy (temp_filename
+ len
, "ccXXXXXX");
1476 mktemp (temp_filename
);
1477 temp_filename_length
= strlen (temp_filename
);
1478 if (temp_filename_length
== 0)
1483 /* Routine to add variables to the environment. We do this to pass
1484 the pathname of the gcc driver, and the directories search to the
1485 collect2 program, which is being run as ld. This way, we can be
1486 sure of executing the right compiler when collect2 wants to build
1487 constructors and destructors. Since the environment variables we
1488 use come from an obstack, we don't have to worry about allocating
1497 #ifndef VMS /* nor about VMS */
1499 extern char **environ
;
1500 char **old_environ
= environ
;
1504 int str_len
= strlen (str
);
1508 while ((ch
= *p
++) != '\0' && ch
!= '=')
1514 /* Search for replacing an existing environment variable, and
1515 count the number of total environment variables. */
1516 for (envp
= old_environ
; *envp
; envp
++)
1519 if (!strncmp (str
, *envp
, name_len
))
1526 /* Add a new environment variable */
1527 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1529 bcopy (old_environ
, environ
+1, sizeof (char *) * (num_envs
+1));
1534 #endif /* HAVE_PUTENV */
1537 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1540 putenv_from_prefixes (paths
, env_var
)
1541 struct path_prefix
*paths
;
1544 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1546 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1547 int first_time
= TRUE
;
1548 struct prefix_list
*pprefix
;
1550 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1552 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1554 int len
= strlen (pprefix
->prefix
);
1557 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1560 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1563 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1564 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1567 if (just_machine_suffix
1568 && pprefix
->require_machine_suffix
== 2
1569 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1572 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1575 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1576 obstack_grow (&collect_obstack
, just_machine_suffix
,
1580 if (!pprefix
->require_machine_suffix
)
1583 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1586 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1589 obstack_1grow (&collect_obstack
, '\0');
1590 putenv (obstack_finish (&collect_obstack
));
1594 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1595 access to check permissions.
1596 Return 0 if not found, otherwise return its name, allocated with malloc. */
1599 find_a_file (pprefix
, name
, mode
)
1600 struct path_prefix
*pprefix
;
1605 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1606 struct prefix_list
*pl
;
1607 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1610 len
+= strlen (machine_suffix
);
1612 temp
= xmalloc (len
);
1614 /* Determine the filename to execute (special case for absolute paths). */
1618 if (access (name
, mode
))
1620 strcpy (temp
, name
);
1625 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1629 /* Some systems have a suffix for executable files.
1630 So try appending that first. */
1631 if (file_suffix
[0] != 0)
1633 strcpy (temp
, pl
->prefix
);
1634 strcat (temp
, machine_suffix
);
1635 strcat (temp
, name
);
1636 strcat (temp
, file_suffix
);
1637 if (access (temp
, mode
) == 0)
1639 if (pl
->used_flag_ptr
!= 0)
1640 *pl
->used_flag_ptr
= 1;
1645 /* Now try just the name. */
1646 strcpy (temp
, pl
->prefix
);
1647 strcat (temp
, machine_suffix
);
1648 strcat (temp
, name
);
1649 if (access (temp
, mode
) == 0)
1651 if (pl
->used_flag_ptr
!= 0)
1652 *pl
->used_flag_ptr
= 1;
1657 /* Certain prefixes are tried with just the machine type,
1658 not the version. This is used for finding as, ld, etc. */
1659 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1661 /* Some systems have a suffix for executable files.
1662 So try appending that first. */
1663 if (file_suffix
[0] != 0)
1665 strcpy (temp
, pl
->prefix
);
1666 strcat (temp
, just_machine_suffix
);
1667 strcat (temp
, name
);
1668 strcat (temp
, file_suffix
);
1669 if (access (temp
, mode
) == 0)
1671 if (pl
->used_flag_ptr
!= 0)
1672 *pl
->used_flag_ptr
= 1;
1677 strcpy (temp
, pl
->prefix
);
1678 strcat (temp
, just_machine_suffix
);
1679 strcat (temp
, name
);
1680 if (access (temp
, mode
) == 0)
1682 if (pl
->used_flag_ptr
!= 0)
1683 *pl
->used_flag_ptr
= 1;
1688 /* Certain prefixes can't be used without the machine suffix
1689 when the machine or version is explicitly specified. */
1690 if (!pl
->require_machine_suffix
)
1692 /* Some systems have a suffix for executable files.
1693 So try appending that first. */
1694 if (file_suffix
[0] != 0)
1696 strcpy (temp
, pl
->prefix
);
1697 strcat (temp
, name
);
1698 strcat (temp
, file_suffix
);
1699 if (access (temp
, mode
) == 0)
1701 if (pl
->used_flag_ptr
!= 0)
1702 *pl
->used_flag_ptr
= 1;
1707 strcpy (temp
, pl
->prefix
);
1708 strcat (temp
, name
);
1709 if (access (temp
, mode
) == 0)
1711 if (pl
->used_flag_ptr
!= 0)
1712 *pl
->used_flag_ptr
= 1;
1722 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1723 at the start of the list, otherwise it goes at the end.
1725 If WARN is nonzero, we will warn if no file is found
1726 through this prefix. WARN should point to an int
1727 which will be set to 1 if this entry is used.
1729 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1730 the complete value of machine_suffix.
1731 2 means try both machine_suffix and just_machine_suffix. */
1734 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1735 struct path_prefix
*pprefix
;
1738 int require_machine_suffix
;
1741 struct prefix_list
*pl
, **prev
;
1744 if (!first
&& pprefix
->plist
)
1746 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1751 prev
= &pprefix
->plist
;
1753 /* Keep track of the longest prefix */
1755 len
= strlen (prefix
);
1756 if (len
> pprefix
->max_len
)
1757 pprefix
->max_len
= len
;
1759 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1760 pl
->prefix
= save_string (prefix
, len
);
1761 pl
->require_machine_suffix
= require_machine_suffix
;
1762 pl
->used_flag_ptr
= warn
;
1769 pl
->next
= (struct prefix_list
*) 0;
1773 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1776 unused_prefix_warnings (pprefix
)
1777 struct path_prefix
*pprefix
;
1779 struct prefix_list
*pl
= pprefix
->plist
;
1783 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1785 error ("file path prefix `%s' never used",
1787 /* Prevent duplicate warnings. */
1788 *pl
->used_flag_ptr
= 1;
1794 /* Get rid of all prefixes built up so far in *PLISTP. */
1797 free_path_prefix (pprefix
)
1798 struct path_prefix
*pprefix
;
1800 struct prefix_list
*pl
= pprefix
->plist
;
1801 struct prefix_list
*temp
;
1807 free (temp
->prefix
);
1808 free ((char *) temp
);
1810 pprefix
->plist
= (struct prefix_list
*) 0;
1813 /* stdin file number. */
1814 #define STDIN_FILE_NO 0
1816 /* stdout file number. */
1817 #define STDOUT_FILE_NO 1
1819 /* value of `pipe': port index for reading. */
1822 /* value of `pipe': port index for writing. */
1823 #define WRITE_PORT 1
1825 /* Pipe waiting from last process, to be used as input for the next one.
1826 Value is STDIN_FILE_NO if no pipe is waiting
1827 (i.e. the next command is the first of a group). */
1829 static int last_pipe_input
;
1831 /* Fork one piped subcommand. FUNC is the system call to use
1832 (either execv or execvp). ARGV is the arg vector to use.
1833 NOT_LAST is nonzero if this is not the last subcommand
1834 (i.e. its output should be piped to the next one.) */
1839 /* Declare these to avoid compilation error. They won't be called. */
1840 int execv(const char *a
, const char **b
){}
1841 int execvp(const char *a
, const char **b
){}
1844 pexecute (search_flag
, program
, argv
, not_last
)
1852 int i
, el
= search_flag
? 0 : 4;
1854 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1855 rf
= scmd
+ strlen(program
) + 2 + el
;
1856 sprintf (scmd
, "%s%s @%s.gp", program
,
1857 (search_flag
? "" : ".exe"), temp_filename
);
1858 argfile
= fopen (rf
, "w");
1860 pfatal_with_name (rf
);
1862 for (i
=1; argv
[i
]; i
++)
1865 for (cp
= argv
[i
]; *cp
; cp
++)
1867 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1868 fputc ('\\', argfile
);
1869 fputc (*cp
, argfile
);
1871 fputc ('\n', argfile
);
1881 perror_exec (program
);
1882 return MIN_FATAL_STATUS
<< 8;
1888 #else /* not __MSDOS__ */
1891 pexecute (search_flag
, program
, argv
, not_last
)
1897 int (*func
)() = (search_flag
? execv
: execvp
);
1900 int input_desc
= last_pipe_input
;
1901 int output_desc
= STDOUT_FILE_NO
;
1902 int retries
, sleep_interval
;
1904 /* If this isn't the last process, make a pipe for its output,
1905 and record it as waiting to be the input to the next process. */
1909 if (pipe (pdes
) < 0)
1910 pfatal_with_name ("pipe");
1911 output_desc
= pdes
[WRITE_PORT
];
1912 last_pipe_input
= pdes
[READ_PORT
];
1915 last_pipe_input
= STDIN_FILE_NO
;
1917 /* Fork a subprocess; wait and retry if it fails. */
1919 for (retries
= 0; retries
< 4; retries
++)
1924 sleep (sleep_interval
);
1925 sleep_interval
*= 2;
1932 pfatal_with_name ("fork");
1934 pfatal_with_name ("vfork");
1940 /* Move the input and output pipes into place, if nec. */
1941 if (input_desc
!= STDIN_FILE_NO
)
1943 close (STDIN_FILE_NO
);
1947 if (output_desc
!= STDOUT_FILE_NO
)
1949 close (STDOUT_FILE_NO
);
1951 close (output_desc
);
1954 /* Close the parent's descs that aren't wanted here. */
1955 if (last_pipe_input
!= STDIN_FILE_NO
)
1956 close (last_pipe_input
);
1958 /* Exec the program. */
1959 (*func
) (program
, argv
);
1960 perror_exec (program
);
1966 /* In the parent, after forking.
1967 Close the descriptors that we made for this child. */
1968 if (input_desc
!= STDIN_FILE_NO
)
1970 if (output_desc
!= STDOUT_FILE_NO
)
1971 close (output_desc
);
1973 /* Return child's process number. */
1978 #endif /* not __MSDOS__ */
1982 pexecute (search_flag
, program
, argv
, not_last
)
1988 return (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1990 #endif /* not OS2 */
1992 /* Execute the command specified by the arguments on the current line of spec.
1993 When using pipes, this includes several piped-together commands
1994 with `|' between them.
1996 Return 0 if successful, -1 if failed. */
2002 int n_commands
; /* # of command. */
2006 char *prog
; /* program name. */
2007 char **argv
; /* vector of args. */
2008 int pid
; /* pid of process for this command. */
2011 struct command
*commands
; /* each command buffer with above info. */
2013 /* Count # of piped commands. */
2014 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2015 if (strcmp (argbuf
[i
], "|") == 0)
2018 /* Get storage for each command. */
2020 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2022 /* Split argbuf into its separate piped processes,
2023 and record info about each one.
2024 Also search for the programs that are to be run. */
2026 commands
[0].prog
= argbuf
[0]; /* first command. */
2027 commands
[0].argv
= &argbuf
[0];
2028 string
= find_a_file (&exec_prefix
, commands
[0].prog
, X_OK
);
2030 commands
[0].argv
[0] = string
;
2032 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2033 if (strcmp (argbuf
[i
], "|") == 0)
2034 { /* each command. */
2036 fatal ("-pipe not supported under MS-DOS");
2038 argbuf
[i
] = 0; /* termination of command args. */
2039 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2040 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2041 string
= find_a_file (&exec_prefix
, commands
[n_commands
].prog
, X_OK
);
2043 commands
[n_commands
].argv
[0] = string
;
2047 argbuf
[argbuf_index
] = 0;
2049 /* If -v, print what we are about to do, and maybe query. */
2053 /* Print each piped command as a separate line. */
2054 for (i
= 0; i
< n_commands
; i
++)
2058 for (j
= commands
[i
].argv
; *j
; j
++)
2059 fprintf (stderr
, " %s", *j
);
2061 /* Print a pipe symbol after all but the last command. */
2062 if (i
+ 1 != n_commands
)
2063 fprintf (stderr
, " |");
2064 fprintf (stderr
, "\n");
2068 fprintf (stderr
, "\nGo ahead? (y or n) ");
2072 while (getchar () != '\n') ;
2073 if (i
!= 'y' && i
!= 'Y')
2078 /* Run each piped subprocess. */
2080 last_pipe_input
= STDIN_FILE_NO
;
2081 for (i
= 0; i
< n_commands
; i
++)
2083 char *string
= commands
[i
].argv
[0];
2085 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2086 string
, commands
[i
].argv
,
2087 i
+ 1 < n_commands
);
2089 if (string
!= commands
[i
].prog
)
2095 /* Wait for all the subprocesses to finish.
2096 We don't care what order they finish in;
2097 we know that N_COMMANDS waits will get them all. */
2102 for (i
= 0; i
< n_commands
; i
++)
2106 char *prog
= "unknown";
2109 status
= pid
= commands
[i
].pid
;
2111 pid
= wait (&status
);
2119 for (j
= 0; j
< n_commands
; j
++)
2120 if (commands
[j
].pid
== pid
)
2121 prog
= commands
[j
].prog
;
2123 if ((status
& 0x7F) != 0)
2125 fatal ("Internal compiler error: program %s got fatal signal %d",
2126 prog
, (status
& 0x7F));
2129 if (((status
& 0xFF00) >> 8) >= MIN_FATAL_STATUS
)
2137 /* Find all the switches given to us
2138 and make a vector describing them.
2139 The elements of the vector are strings, one per switch given.
2140 If a switch uses following arguments, then the `part1' field
2141 is the switch itself and the `args' field
2142 is a null-terminated vector containing the following arguments.
2143 The `live_cond' field is 1 if the switch is true in a conditional spec,
2144 -1 if false (overridden by a later switch), and is initialized to zero.
2145 The `valid' field is nonzero if any spec has looked at this switch;
2146 if it remains zero at the end of the run, it must be meaningless. */
2156 static struct switchstr
*switches
;
2158 static int n_switches
;
2166 /* Also a vector of input files specified. */
2168 static struct infile
*infiles
;
2170 static int n_infiles
;
2172 /* And a vector of corresponding output files is made up later. */
2174 static char **outfiles
;
2176 /* Create the vector `switches' and its contents.
2177 Store its length in `n_switches'. */
2180 process_command (argc
, argv
)
2186 char *spec_lang
= 0;
2187 int last_language_n_infiles
;
2189 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2194 /* Figure compiler version from version string. */
2196 compiler_version
= save_string (version_string
, strlen (version_string
));
2197 for (temp
= compiler_version
; *temp
; ++temp
)
2206 /* Set up the default search paths. */
2208 if (gcc_exec_prefix
)
2210 add_prefix (&exec_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2211 add_prefix (&startfile_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2214 /* COMPILER_PATH and LIBRARY_PATH have values
2215 that are lists of directory names with colons. */
2217 temp
= getenv ("COMPILER_PATH");
2220 char *startp
, *endp
;
2221 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2223 startp
= endp
= temp
;
2226 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2228 strncpy (nstore
, startp
, endp
-startp
);
2231 strcpy (nstore
, "./");
2233 else if (endp
[-1] != '/')
2235 nstore
[endp
-startp
] = '/';
2236 nstore
[endp
-startp
+1] = 0;
2239 nstore
[endp
-startp
] = 0;
2240 add_prefix (&exec_prefix
, nstore
, 0, 0, NULL_PTR
);
2243 endp
= startp
= endp
+ 1;
2250 temp
= getenv ("LIBRARY_PATH");
2253 char *startp
, *endp
;
2254 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2256 startp
= endp
= temp
;
2259 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2261 strncpy (nstore
, startp
, endp
-startp
);
2264 strcpy (nstore
, "./");
2266 else if (endp
[-1] != '/')
2268 nstore
[endp
-startp
] = '/';
2269 nstore
[endp
-startp
+1] = 0;
2272 nstore
[endp
-startp
] = 0;
2273 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2276 endp
= startp
= endp
+ 1;
2283 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2284 temp
= getenv ("LPATH");
2287 char *startp
, *endp
;
2288 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2290 startp
= endp
= temp
;
2293 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2295 strncpy (nstore
, startp
, endp
-startp
);
2298 strcpy (nstore
, "./");
2300 else if (endp
[-1] != '/')
2302 nstore
[endp
-startp
] = '/';
2303 nstore
[endp
-startp
+1] = 0;
2306 nstore
[endp
-startp
] = 0;
2307 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2310 endp
= startp
= endp
+ 1;
2317 /* Convert new-style -- options to old-style. */
2318 translate_options (&argc
, &argv
);
2320 /* Scan argv twice. Here, the first time, just count how many switches
2321 there will be in their vector, and how many input files in theirs.
2322 Here we also parse the switches that cc itself uses (e.g. -v). */
2324 for (i
= 1; i
< argc
; i
++)
2326 if (! strcmp (argv
[i
], "-dumpspecs"))
2328 printf ("*asm:\n%s\n\n", asm_spec
);
2329 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2330 printf ("*cpp:\n%s\n\n", cpp_spec
);
2331 printf ("*cc1:\n%s\n\n", cc1_spec
);
2332 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2333 printf ("*endfile:\n%s\n\n", endfile_spec
);
2334 printf ("*link:\n%s\n\n", link_spec
);
2335 printf ("*lib:\n%s\n\n", lib_spec
);
2336 printf ("*startfile:\n%s\n\n", startfile_spec
);
2337 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2338 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2339 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2340 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2344 else if (! strcmp (argv
[i
], "-dumpversion"))
2346 printf ("%s\n", version_string
);
2349 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2350 print_file_name
= "libgcc.a";
2351 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2352 print_file_name
= argv
[i
] + 17;
2353 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2354 print_prog_name
= argv
[i
] + 17;
2355 else if (! strcmp (argv
[i
], "-Xlinker"))
2357 /* Pass the argument of this option to the linker when we link. */
2360 fatal ("argument to `-Xlinker' is missing");
2363 if (!linker_options
)
2365 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2368 = (char **) xrealloc (linker_options
,
2369 n_linker_options
* sizeof (char **));
2371 linker_options
[n_linker_options
- 1] = argv
[++i
];
2373 else if (! strncmp (argv
[i
], "-Wl,", 4))
2376 /* Pass the rest of this option to the linker when we link. */
2379 if (!linker_options
)
2381 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2384 = (char **) xrealloc (linker_options
,
2385 n_linker_options
* sizeof (char **));
2387 /* Split the argument at commas. */
2389 for (j
= 4; argv
[i
][j
]; j
++)
2390 if (argv
[i
][j
] == ',')
2392 linker_options
[n_linker_options
- 1]
2393 = save_string (argv
[i
] + prev
, j
- prev
);
2396 = (char **) xrealloc (linker_options
,
2397 n_linker_options
* sizeof (char **));
2400 /* Record the part after the last comma. */
2401 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2403 else if (! strncmp (argv
[i
], "-Wa,", 4))
2406 /* Pass the rest of this option to the assembler. */
2408 n_assembler_options
++;
2409 if (!assembler_options
)
2411 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2414 = (char **) xrealloc (assembler_options
,
2415 n_assembler_options
* sizeof (char **));
2417 /* Split the argument at commas. */
2419 for (j
= 4; argv
[i
][j
]; j
++)
2420 if (argv
[i
][j
] == ',')
2422 assembler_options
[n_assembler_options
- 1]
2423 = save_string (argv
[i
] + prev
, j
- prev
);
2424 n_assembler_options
++;
2426 = (char **) xrealloc (assembler_options
,
2427 n_assembler_options
* sizeof (char **));
2430 /* Record the part after the last comma. */
2431 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2433 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2434 /* The +e options to the C++ front-end. */
2436 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2438 register char *p
= &argv
[i
][1];
2439 register int c
= *p
;
2444 if (p
[1] == 0 && i
+ 1 == argc
)
2445 fatal ("argument to `-b' is missing");
2447 spec_machine
= argv
[++i
];
2449 spec_machine
= p
+ 1;
2454 int *temp
= (int *) xmalloc (sizeof (int));
2456 if (p
[1] == 0 && i
+ 1 == argc
)
2457 fatal ("argument to `-B' is missing");
2462 add_prefix (&exec_prefix
, value
, 1, 0, temp
);
2463 add_prefix (&startfile_prefix
, value
, 1, 0, temp
);
2464 add_prefix (&include_prefix
, concat (value
, "include", ""),
2467 /* As a kludge, if the arg is "[foo/]stageN/", just add
2468 "[foo/]stageN/../include" to the include prefix. */
2470 int len
= strlen (value
);
2471 if ((len
== 7 || (len
> 7 && value
[len
- 8] == '/'))
2472 && strncmp (value
+ len
- 7, "stage", 5) == 0
2473 && isdigit (value
[len
- 2])
2474 && value
[len
- 1] == '/')
2475 add_prefix (&include_prefix
,
2476 concat (value
, "../include", ""), 1, 0, 0);
2481 case 'v': /* Print our subcommands and print versions. */
2483 /* If they do anything other than exactly `-v', don't set
2484 verbose_flag; rather, continue on to give the error. */
2491 if (p
[1] == 0 && i
+ 1 == argc
)
2492 fatal ("argument to `-V' is missing");
2494 spec_version
= argv
[++i
];
2496 spec_version
= p
+ 1;
2497 compiler_version
= spec_version
;
2501 if (!strcmp (p
, "save-temps"))
2503 save_temps_flag
= 1;
2510 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2511 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2512 else if (WORD_SWITCH_TAKES_ARG (p
))
2513 i
+= WORD_SWITCH_TAKES_ARG (p
);
2520 /* Set up the search paths before we go looking for config files. */
2522 /* These come before the md prefixes so that we will find gcc's subcommands
2523 (such as cpp) rather than those of the host system. */
2524 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2525 as well as trying the machine and the version. */
2526 add_prefix (&exec_prefix
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2527 add_prefix (&exec_prefix
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2529 add_prefix (&startfile_prefix
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2530 add_prefix (&startfile_prefix
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2532 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
, "/");
2534 /* If tooldir is relative, base it on exec_prefix. A relative
2535 tooldir lets us move the installed tree as a unit.
2537 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2538 directories, so that we can search both the user specified directory
2539 and the standard place. */
2541 if (*tooldir_prefix
!= '/')
2543 if (gcc_exec_prefix
)
2545 char *gcc_exec_tooldir_prefix
2546 = concat (concat (gcc_exec_prefix
, spec_machine
, "/"),
2547 concat (spec_version
, "/", tooldir_prefix
),
2550 add_prefix (&exec_prefix
, concat (gcc_exec_tooldir_prefix
, "bin", "/"),
2552 add_prefix (&startfile_prefix
, concat (gcc_exec_tooldir_prefix
, "lib", "/"),
2556 tooldir_prefix
= concat (concat (standard_exec_prefix
, spec_machine
, "/"),
2557 concat (spec_version
, "/", tooldir_prefix
),
2561 add_prefix (&exec_prefix
, concat (tooldir_prefix
, "bin", "/"),
2563 add_prefix (&startfile_prefix
, concat (tooldir_prefix
, "lib", "/"),
2566 /* More prefixes are enabled in main, after we read the specs file
2567 and determine whether this is cross-compilation or not. */
2570 /* Then create the space for the vectors and scan again. */
2572 switches
= ((struct switchstr
*)
2573 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2574 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2577 last_language_n_infiles
= -1;
2579 /* This, time, copy the text of each switch and store a pointer
2580 to the copy in the vector of switches.
2581 Store all the infiles in their vector. */
2583 for (i
= 1; i
< argc
; i
++)
2585 /* Just skip the switches that were handled by the preceding loop. */
2586 if (!strcmp (argv
[i
], "-Xlinker"))
2588 else if (! strncmp (argv
[i
], "-Wl,", 4))
2590 else if (! strncmp (argv
[i
], "-Wa,", 4))
2592 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2594 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2596 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2598 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2600 /* Compensate for the +e options to the C++ front-end;
2601 they're there simply for cfront call-compatibility. We do
2602 some magic in default_compilers to pass them down properly.
2603 Note we deliberately start at the `+' here, to avoid passing
2604 -e0 or -e1 down into the linker. */
2605 switches
[n_switches
].part1
= &argv
[i
][0];
2606 switches
[n_switches
].args
= 0;
2607 switches
[n_switches
].live_cond
= 0;
2608 switches
[n_switches
].valid
= 0;
2611 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2613 register char *p
= &argv
[i
][1];
2614 register int c
= *p
;
2616 if (c
== 'B' || c
== 'b' || c
== 'V')
2618 /* Skip a separate arg, if any. */
2625 if (p
[1] == 0 && i
+ 1 == argc
)
2626 fatal ("argument to `-x' is missing");
2628 spec_lang
= argv
[++i
];
2631 if (! strcmp (spec_lang
, "none"))
2632 /* Suppress the warning if -xnone comes after the last input file,
2633 because alternate command interfaces like g++ might find it
2634 useful to place -xnone after each input file. */
2637 last_language_n_infiles
= n_infiles
;
2640 switches
[n_switches
].part1
= p
;
2641 /* Deal with option arguments in separate argv elements. */
2642 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2643 || WORD_SWITCH_TAKES_ARG (p
))
2646 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2650 /* Count only the option arguments in separate argv elements. */
2651 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2653 if (i
+ n_args
>= argc
)
2654 fatal ("argument to `-%s' is missing", p
);
2655 switches
[n_switches
].args
2656 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2658 switches
[n_switches
].args
[j
++] = argv
[++i
];
2659 /* Null-terminate the vector. */
2660 switches
[n_switches
].args
[j
] = 0;
2662 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2664 /* On some systems, ld cannot handle -o or -L without space.
2665 So split the -o or -L from its argument. */
2666 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2667 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2668 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2669 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2670 switches
[n_switches
].args
[1] = 0;
2673 switches
[n_switches
].args
= 0;
2675 switches
[n_switches
].live_cond
= 0;
2676 switches
[n_switches
].valid
= 0;
2677 /* This is always valid, since gcc.c itself understands it. */
2678 if (!strcmp (p
, "save-temps"))
2679 switches
[n_switches
].valid
= 1;
2684 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2685 && strcmp (argv
[i
], "-")
2686 && access (argv
[i
], R_OK
) < 0)
2688 perror_with_name (argv
[i
]);
2693 infiles
[n_infiles
].language
= spec_lang
;
2694 infiles
[n_infiles
++].name
= argv
[i
];
2699 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2700 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2702 switches
[n_switches
].part1
= 0;
2703 infiles
[n_infiles
].name
= 0;
2705 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2706 if (gcc_exec_prefix
)
2708 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2709 + strlen (spec_machine
) + 3);
2710 strcpy (temp
, gcc_exec_prefix
);
2711 strcat (temp
, spec_machine
);
2713 strcat (temp
, spec_version
);
2715 gcc_exec_prefix
= temp
;
2719 /* Process a spec string, accumulating and running commands. */
2721 /* These variables describe the input file name.
2722 input_file_number is the index on outfiles of this file,
2723 so that the output file name can be stored for later use by %o.
2724 input_basename is the start of the part of the input file
2725 sans all directory names, and basename_length is the number
2726 of characters starting there excluding the suffix .c or whatever. */
2728 static char *input_filename
;
2729 static int input_file_number
;
2730 static int input_filename_length
;
2731 static int basename_length
;
2732 static char *input_basename
;
2733 static char *input_suffix
;
2735 /* These are variables used within do_spec and do_spec_1. */
2737 /* Nonzero if an arg has been started and not yet terminated
2738 (with space, tab or newline). */
2739 static int arg_going
;
2741 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2742 is a temporary file name. */
2743 static int delete_this_arg
;
2745 /* Nonzero means %w has been seen; the next arg to be terminated
2746 is the output file name of this compilation. */
2747 static int this_is_output_file
;
2749 /* Nonzero means %s has been seen; the next arg to be terminated
2750 is the name of a library file and we should try the standard
2751 search dirs for it. */
2752 static int this_is_library_file
;
2754 /* Nonzero means that the input of this command is coming from a pipe. */
2755 static int input_from_pipe
;
2757 /* Process the spec SPEC and run the commands specified therein.
2758 Returns 0 if the spec is successfully processed; -1 if failed. */
2768 delete_this_arg
= 0;
2769 this_is_output_file
= 0;
2770 this_is_library_file
= 0;
2771 input_from_pipe
= 0;
2773 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2775 /* Force out any unfinished command.
2776 If -pipe, this forces out the last command if it ended in `|'. */
2779 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2782 if (argbuf_index
> 0)
2789 /* Process the sub-spec SPEC as a portion of a larger spec.
2790 This is like processing a whole spec except that we do
2791 not initialize at the beginning and we do not supply a
2792 newline by default at the end.
2793 INSWITCH nonzero means don't process %-sequences in SPEC;
2794 in this case, % is treated as an ordinary character.
2795 This is used while substituting switches.
2796 INSWITCH nonzero also causes SPC not to terminate an argument.
2798 Value is zero unless a line was finished
2799 and the command on that line reported an error. */
2802 do_spec_1 (spec
, inswitch
, soft_matched_part
)
2805 char *soft_matched_part
;
2807 register char *p
= spec
;
2814 /* If substituting a switch, treat all chars like letters.
2815 Otherwise, NL, SPC, TAB and % are special. */
2816 switch (inswitch
? 'a' : c
)
2819 /* End of line: finish any pending argument,
2820 then run the pending command if one has been started. */
2823 obstack_1grow (&obstack
, 0);
2824 string
= obstack_finish (&obstack
);
2825 if (this_is_library_file
)
2826 string
= find_file (string
);
2827 store_arg (string
, delete_this_arg
, this_is_output_file
);
2828 if (this_is_output_file
)
2829 outfiles
[input_file_number
] = string
;
2833 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2836 for (i
= 0; i
< n_switches
; i
++)
2837 if (!strcmp (switches
[i
].part1
, "pipe"))
2840 /* A `|' before the newline means use a pipe here,
2841 but only if -pipe was specified.
2842 Otherwise, execute now and don't pass the `|' as an arg. */
2845 input_from_pipe
= 1;
2846 switches
[i
].valid
= 1;
2853 if (argbuf_index
> 0)
2859 /* Reinitialize for a new command, and for a new argument. */
2862 delete_this_arg
= 0;
2863 this_is_output_file
= 0;
2864 this_is_library_file
= 0;
2865 input_from_pipe
= 0;
2869 /* End any pending argument. */
2872 obstack_1grow (&obstack
, 0);
2873 string
= obstack_finish (&obstack
);
2874 if (this_is_library_file
)
2875 string
= find_file (string
);
2876 store_arg (string
, delete_this_arg
, this_is_output_file
);
2877 if (this_is_output_file
)
2878 outfiles
[input_file_number
] = string
;
2882 obstack_1grow (&obstack
, c
);
2888 /* Space or tab ends an argument if one is pending. */
2891 obstack_1grow (&obstack
, 0);
2892 string
= obstack_finish (&obstack
);
2893 if (this_is_library_file
)
2894 string
= find_file (string
);
2895 store_arg (string
, delete_this_arg
, this_is_output_file
);
2896 if (this_is_output_file
)
2897 outfiles
[input_file_number
] = string
;
2899 /* Reinitialize for a new argument. */
2901 delete_this_arg
= 0;
2902 this_is_output_file
= 0;
2903 this_is_library_file
= 0;
2910 fatal ("Invalid specification! Bug in cc.");
2913 obstack_grow (&obstack
, input_basename
, basename_length
);
2918 delete_this_arg
= 2;
2921 /* Dump out the directories specified with LIBRARY_PATH,
2922 followed by the absolute directories
2923 that we search for startfiles. */
2926 struct prefix_list
*pl
= startfile_prefix
.plist
;
2928 char *buffer
= (char *) xmalloc (bufsize
);
2931 for (; pl
; pl
= pl
->next
)
2933 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2934 /* Used on systems which record the specified -L dirs
2935 and use them to search for dynamic linking. */
2936 /* Relative directories always come from -B,
2937 and it is better not to use them for searching
2938 at run time. In particular, stage1 loses */
2939 if (pl
->prefix
[0] != '/')
2944 if (is_directory (pl
->prefix
, machine_suffix
, 1))
2946 do_spec_1 ("-L", 0, NULL_PTR
);
2947 #ifdef SPACE_AFTER_L_OPTION
2948 do_spec_1 (" ", 0, NULL_PTR
);
2950 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
2951 /* Remove slash from machine_suffix. */
2952 if (strlen (machine_suffix
) >= bufsize
)
2953 bufsize
= strlen (machine_suffix
) * 2 + 1;
2954 buffer
= (char *) xrealloc (buffer
, bufsize
);
2955 strcpy (buffer
, machine_suffix
);
2956 idx
= strlen (buffer
);
2957 if (buffer
[idx
- 1] == '/')
2958 buffer
[idx
- 1] = 0;
2959 do_spec_1 (buffer
, 1, NULL_PTR
);
2960 /* Make this a separate argument. */
2961 do_spec_1 (" ", 0, NULL_PTR
);
2964 if (!pl
->require_machine_suffix
)
2966 if (is_directory (pl
->prefix
, "", 1))
2968 do_spec_1 ("-L", 0, NULL_PTR
);
2969 #ifdef SPACE_AFTER_L_OPTION
2970 do_spec_1 (" ", 0, NULL_PTR
);
2972 /* Remove slash from pl->prefix. */
2973 if (strlen (pl
->prefix
) >= bufsize
)
2974 bufsize
= strlen (pl
->prefix
) * 2 + 1;
2975 buffer
= (char *) xrealloc (buffer
, bufsize
);
2976 strcpy (buffer
, pl
->prefix
);
2977 idx
= strlen (buffer
);
2978 if (buffer
[idx
- 1] == '/')
2979 buffer
[idx
- 1] = 0;
2980 do_spec_1 (buffer
, 1, NULL_PTR
);
2981 /* Make this a separate argument. */
2982 do_spec_1 (" ", 0, NULL_PTR
);
2991 /* {...:%efoo} means report an error with `foo' as error message
2992 and don't execute any more commands for this file. */
2996 while (*p
!= 0 && *p
!= '\n') p
++;
2997 buf
= (char *) alloca (p
- q
+ 1);
2998 strncpy (buf
, q
, p
- q
);
3008 if (save_temps_flag
)
3010 obstack_grow (&obstack
, input_basename
, basename_length
);
3011 delete_this_arg
= 0;
3015 #ifdef MKTEMP_EACH_FILE
3016 /* ??? This has a problem: the total number of
3017 values mktemp can return is limited.
3018 That matters for the names of object files.
3019 In 2.4, do something about that. */
3020 struct temp_name
*t
;
3022 while (*p
== '.' || isalpha (*p
))
3025 /* See if we already have an association of %g/%u/%U and
3027 for (t
= temp_names
; t
; t
= t
->next
)
3028 if (t
->length
== p
- suffix
3029 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3030 && t
->unique
== (c
!= 'g'))
3033 /* Make a new association if needed. %u requires one. */
3034 if (t
== 0 || c
== 'u')
3038 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3039 t
->next
= temp_names
;
3042 t
->length
= p
- suffix
;
3043 t
->suffix
= save_string (suffix
, p
- suffix
);
3044 t
->unique
= (c
!= 'g');
3045 choose_temp_base ();
3046 t
->filename
= temp_filename
;
3047 t
->filename_length
= temp_filename_length
;
3050 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3051 delete_this_arg
= 1;
3053 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3054 if (c
== 'u' || c
== 'U')
3060 sprintf (buff
, "%d", unique
);
3061 obstack_grow (&obstack
, buff
, strlen (buff
));
3064 delete_this_arg
= 1;
3070 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3076 struct prefix_list
*pl
= include_prefix
.plist
;
3078 if (gcc_exec_prefix
)
3080 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3081 /* Make this a separate argument. */
3082 do_spec_1 (" ", 0, NULL_PTR
);
3083 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3084 do_spec_1 (" ", 0, NULL_PTR
);
3087 for (; pl
; pl
= pl
->next
)
3089 do_spec_1 ("-isystem", 1, NULL_PTR
);
3090 /* Make this a separate argument. */
3091 do_spec_1 (" ", 0, NULL_PTR
);
3092 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3093 do_spec_1 (" ", 0, NULL_PTR
);
3101 for (f
= 0; f
< n_infiles
; f
++)
3102 store_arg (outfiles
[f
], 0, 0);
3107 this_is_library_file
= 1;
3111 this_is_output_file
= 1;
3116 int index
= argbuf_index
;
3117 /* Handle the {...} following the %W. */
3120 p
= handle_braces (p
+ 1);
3123 /* If any args were output, mark the last one for deletion
3125 if (argbuf_index
!= index
)
3126 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3130 /* %x{OPTION} records OPTION for %X to output. */
3136 /* Skip past the option value and make a copy. */
3141 string
= save_string (p1
+ 1, p
- p1
- 2);
3143 /* See if we already recorded this option. */
3144 for (i
= 0; i
< n_linker_options
; i
++)
3145 if (! strcmp (string
, linker_options
[i
]))
3151 /* This option is new; add it. */
3153 if (!linker_options
)
3155 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3158 = (char **) xrealloc (linker_options
,
3159 n_linker_options
* sizeof (char **));
3161 linker_options
[n_linker_options
- 1] = string
;
3165 /* Dump out the options accumulated previously using %x,
3166 -Xlinker and -Wl,. */
3168 for (i
= 0; i
< n_linker_options
; i
++)
3170 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3171 /* Make each accumulated option a separate argument. */
3172 do_spec_1 (" ", 0, NULL_PTR
);
3176 /* Dump out the options accumulated previously using -Wa,. */
3178 for (i
= 0; i
< n_assembler_options
; i
++)
3180 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3181 /* Make each accumulated option a separate argument. */
3182 do_spec_1 (" ", 0, NULL_PTR
);
3186 /* Here are digits and numbers that just process
3187 a certain constant string as a spec. */
3190 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3196 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3202 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3208 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3214 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3220 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3226 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3232 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3238 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3245 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3249 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3253 if (! strncmp (y
, "-D", 2))
3254 /* Copy the whole option. */
3255 while (*y
&& *y
!= ' ' && *y
!= '\t')
3257 else if (*y
== ' ' || *y
== '\t')
3258 /* Copy whitespace to the result. */
3260 /* Don't copy other options. */
3267 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3275 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3279 /* Copy all of CPP_PREDEFINES into BUF,
3280 but put __ after every -D and at the end of each arg. */
3284 if (! strncmp (y
, "-D", 2))
3291 if (strncmp (y
, "__", 2))
3293 /* Stick __ at front of macro name. */
3296 /* Arrange to stick __ at the end as well. */
3300 /* Copy the macro name. */
3301 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3310 /* Copy the value given, if any. */
3311 while (*y
&& *y
!= ' ' && *y
!= '\t')
3314 else if (*y
== ' ' || *y
== '\t')
3315 /* Copy whitespace to the result. */
3317 /* Don't copy -A options */
3323 /* Copy all of CPP_PREDEFINES into BUF,
3324 but put __ after every -D. */
3328 if (! strncmp (y
, "-D", 2))
3332 if (strncmp (y
, "__", 2))
3334 /* Stick -D__ at front of macro name. */
3340 /* Copy the macro name. */
3341 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3344 /* Copy the value given, if any. */
3345 while (*y
&& *y
!= ' ' && *y
!= '\t')
3350 /* Do not copy this macro - we have just done it before */
3351 while (*y
&& *y
!= ' ' && *y
!= '\t')
3355 else if (*y
== ' ' || *y
== '\t')
3356 /* Copy whitespace to the result. */
3358 /* Don't copy -A options */
3364 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3368 if (! strncmp (y
, "-A", 2))
3369 /* Copy the whole option. */
3370 while (*y
&& *y
!= ' ' && *y
!= '\t')
3372 else if (*y
== ' ' || *y
== '\t')
3373 /* Copy whitespace to the result. */
3375 /* Don't copy other options. */
3382 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3389 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3394 /* Here we define characters other than letters and digits. */
3397 p
= handle_braces (p
);
3403 obstack_1grow (&obstack
, '%');
3407 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3408 do_spec_1 (" ", 0, NULL_PTR
);
3411 /* Process a string found as the value of a spec given by name.
3412 This feature allows individual machine descriptions
3413 to add and use their own specs.
3414 %[...] modifies -D options the way %P does;
3415 %(...) uses the spec unmodified. */
3420 struct spec_list
*sl
;
3423 /* The string after the S/P is the name of a spec that is to be
3425 while (*p
&& *p
!= ')' && *p
!= ']')
3428 /* See if it's in the list */
3429 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3430 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3440 value
= do_spec_1 (name
, 0, NULL_PTR
);
3446 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3450 /* Copy all of NAME into BUF, but put __ after
3451 every -D and at the end of each arg, */
3454 if (! strncmp (y
, "-D", 2))
3462 else if (*y
== ' ' || *y
== 0)
3476 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3482 /* Discard the closing paren or bracket. */
3490 int c1
= *p
++; /* Select first or second version number. */
3491 char *v
= compiler_version
;
3493 /* If desired, advance to second version number. */
3496 /* Set P after the first period. */
3497 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3502 /* Set Q at the next period or at the end. */
3504 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3506 /* Empty string means zero. */
3512 /* Put that part into the command. */
3513 obstack_grow (&obstack
, v
, q
- v
);
3519 if (input_from_pipe
)
3520 do_spec_1 ("-", 0, NULL_PTR
);
3529 /* Backslash: treat next character as ordinary. */
3534 /* Ordinary character: put it into the current argument. */
3535 obstack_1grow (&obstack
, c
);
3539 return 0; /* End of string */
3542 /* Return 0 if we call do_spec_1 and that returns -1. */
3555 /* A `|' after the open-brace means,
3556 if the test fails, output a single minus sign rather than nothing.
3557 This is used in %{|!pipe:...}. */
3561 /* A `!' after the open-brace negates the condition:
3562 succeed if the specified switch is not present. */
3566 /* A `.' after the open-brace means test against the current suffix. */
3576 while (*p
!= ':' && *p
!= '}') p
++;
3579 register int count
= 1;
3597 int found
= (input_suffix
!= 0
3598 && strlen (input_suffix
) == p
- filter
3599 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3605 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3610 else if (p
[-1] == '*' && p
[0] == '}')
3612 /* Substitute all matching switches as separate args. */
3615 for (i
= 0; i
< n_switches
; i
++)
3616 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3617 && check_live_switch (i
, p
- filter
))
3622 /* Test for presence of the specified switch. */
3626 /* If name specified ends in *, as in {x*:...},
3627 check for %* and handle that case. */
3628 if (p
[-1] == '*' && !negate
)
3633 /* First see whether we have %*. */
3637 if (*r
== '%' && r
[1] == '*')
3641 /* If we do, handle that case. */
3644 /* Substitute all matching switches as separate args.
3645 But do this by substituting for %*
3646 in the text that follows the colon. */
3648 unsigned hard_match_len
= p
- filter
- 1;
3649 char *string
= save_string (p
+ 1, q
- p
- 2);
3651 for (i
= 0; i
< n_switches
; i
++)
3652 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3653 && check_live_switch (i
, -1))
3655 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3656 /* Pass any arguments this switch has. */
3664 /* If name specified ends in *, as in {x*:...},
3665 check for presence of any switch name starting with x. */
3668 for (i
= 0; i
< n_switches
; i
++)
3670 unsigned hard_match_len
= p
- filter
- 1;
3672 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3673 && check_live_switch (i
, hard_match_len
))
3679 /* Otherwise, check for presence of exact name specified. */
3682 for (i
= 0; i
< n_switches
; i
++)
3684 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3685 && switches
[i
].part1
[p
- filter
] == 0
3686 && check_live_switch (i
, -1))
3694 /* If it is as desired (present for %{s...}, absent for %{-s...})
3695 then substitute either the switch or the specified
3696 conditional text. */
3697 if (present
!= negate
)
3705 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3711 /* Here if a %{|...} conditional fails: output a minus sign,
3712 which means "standard output" or "standard input". */
3713 do_spec_1 ("-", 0, NULL_PTR
);
3720 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3721 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3722 spec, or -1 if either exact match or %* is used.
3724 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3725 whose value does not begin with "no-" is obsoleted by the same value
3726 with the "no-", similarly for a switch with the "no-" prefix. */
3729 check_live_switch (switchnum
, prefix_length
)
3733 char *name
= switches
[switchnum
].part1
;
3736 /* In the common case of {<at-most-one-letter>*}, a negating
3737 switch would always match, so ignore that case. We will just
3738 send the conflicting switches to the compiler phase. */
3739 if (prefix_length
>= 0 && prefix_length
<= 1)
3742 /* If we already processed this switch and determined if it was
3743 live or not, return our past determination. */
3744 if (switches
[switchnum
].live_cond
!= 0)
3745 return switches
[switchnum
].live_cond
> 0;
3747 /* Now search for duplicate in a manner that depends on the name. */
3751 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3752 if (switches
[i
].part1
[0] == 'O')
3754 switches
[switchnum
].valid
= 1;
3755 switches
[switchnum
].live_cond
= -1;
3760 case 'W': case 'f': case 'm':
3761 if (! strncmp (name
+ 1, "no-", 3))
3763 /* We have Xno-YYY, search for XYYY. */
3764 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3765 if (switches
[i
].part1
[0] == name
[0]
3766 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
3768 switches
[switchnum
].valid
= 1;
3769 switches
[switchnum
].live_cond
= -1;
3775 /* We have XYYY, search for Xno-YYY. */
3776 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3777 if (switches
[i
].part1
[0] == name
[0]
3778 && switches
[i
].part1
[1] == 'n'
3779 && switches
[i
].part1
[2] == 'o'
3780 && switches
[i
].part1
[3] == '-'
3781 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
3783 switches
[switchnum
].valid
= 1;
3784 switches
[switchnum
].live_cond
= -1;
3791 /* Otherwise the switch is live. */
3792 switches
[switchnum
].live_cond
= 1;
3796 /* Pass a switch to the current accumulating command
3797 in the same form that we received it.
3798 SWITCHNUM identifies the switch; it is an index into
3799 the vector of switches gcc received, which is `switches'.
3800 This cannot fail since it never finishes a command line.
3802 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3805 give_switch (switchnum
, omit_first_word
)
3807 int omit_first_word
;
3809 if (!omit_first_word
)
3811 do_spec_1 ("-", 0, NULL_PTR
);
3812 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
3814 do_spec_1 (" ", 0, NULL_PTR
);
3815 if (switches
[switchnum
].args
!= 0)
3818 for (p
= switches
[switchnum
].args
; *p
; p
++)
3820 do_spec_1 (*p
, 1, NULL_PTR
);
3821 do_spec_1 (" ", 0, NULL_PTR
);
3824 switches
[switchnum
].valid
= 1;
3827 /* Search for a file named NAME trying various prefixes including the
3828 user's -B prefix and some standard ones.
3829 Return the absolute file name found. If nothing is found, return NAME. */
3837 newname
= find_a_file (&startfile_prefix
, name
, R_OK
);
3838 return newname
? newname
: name
;
3841 /* Determine whether a directory exists. If LINKER, return 0 for
3842 certain fixed names not needed by the linker. If not LINKER, it is
3843 only important to return 0 if the host machine has a small ARG_MAX
3847 is_directory (path1
, path2
, linker
)
3852 int len1
= strlen (path1
);
3853 int len2
= strlen (path2
);
3854 char *path
= (char *) alloca (3 + len1
+ len2
);
3858 #ifndef SMALL_ARG_MAX
3863 /* Construct the path from the two parts. Ensure the string ends with "/.".
3864 The resulting path will be a directory even if the given path is a
3866 bcopy (path1
, path
, len1
);
3867 bcopy (path2
, path
+ len1
, len2
);
3868 cp
= path
+ len1
+ len2
;
3874 /* Exclude directories that the linker is known to search. */
3876 && ((cp
- path
== 6 && strcmp (path
, "/lib/.") == 0)
3877 || (cp
- path
== 10 && strcmp (path
, "/usr/lib/.") == 0)))
3880 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
3883 /* On fatal signals, delete all the temporary files. */
3886 fatal_error (signum
)
3889 signal (signum
, SIG_DFL
);
3890 delete_failure_queue ();
3891 delete_temp_files ();
3892 /* Get the same signal again, this time not handled,
3893 so its normal effect occurs. */
3894 kill (getpid (), signum
);
3905 int linker_was_run
= 0;
3906 char *explicit_link_files
;
3910 p
= argv
[0] + strlen (argv
[0]);
3911 while (p
!= argv
[0] && p
[-1] != '/') --p
;
3914 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
3915 signal (SIGINT
, fatal_error
);
3917 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
3918 signal (SIGHUP
, fatal_error
);
3920 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
3921 signal (SIGTERM
, fatal_error
);
3923 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
3924 signal (SIGPIPE
, fatal_error
);
3928 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
3930 obstack_init (&obstack
);
3932 /* Set up to remember the pathname of gcc and any options
3933 needed for collect. We use argv[0] instead of programname because
3934 we need the complete pathname. */
3935 obstack_init (&collect_obstack
);
3936 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3937 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
3938 putenv (obstack_finish (&collect_obstack
));
3940 /* Choose directory for temp files. */
3942 choose_temp_base ();
3944 /* Make a table of what switches there are (switches, n_switches).
3945 Make a table of specified input files (infiles, n_infiles).
3946 Decode switches that are handled locally. */
3948 process_command (argc
, argv
);
3950 /* Initialize the vector of specs to just the default.
3951 This means one element containing 0s, as a terminator. */
3953 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
3954 bcopy (default_compilers
, compilers
, sizeof default_compilers
);
3955 n_compilers
= n_default_compilers
;
3957 /* Read specs from a file if there is one. */
3959 machine_suffix
= concat (spec_machine
, "/", concat (spec_version
, "/", ""));
3960 just_machine_suffix
= concat (spec_machine
, "/", "");
3962 specs_file
= find_a_file (&startfile_prefix
, "specs", R_OK
);
3963 /* Read the specs file unless it is a default one. */
3964 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
3965 read_specs (specs_file
);
3967 /* If not cross-compiling, look for startfiles in the standard places. */
3968 /* The fact that these are done here, after reading the specs file,
3969 means that it cannot be found in these directories.
3970 But that's okay. It should never be there anyway. */
3973 #ifdef MD_EXEC_PREFIX
3974 add_prefix (&exec_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3975 add_prefix (&startfile_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3978 #ifdef MD_STARTFILE_PREFIX
3979 add_prefix (&startfile_prefix
, md_startfile_prefix
, 0, 0, NULL_PTR
);
3982 #ifdef MD_STARTFILE_PREFIX_1
3983 add_prefix (&startfile_prefix
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
3986 /* If standard_startfile_prefix is relative, base it on
3987 standard_exec_prefix. This lets us move the installed tree
3988 as a unit. If GCC_EXEC_PREFIX is defined, base
3989 standard_startfile_prefix on that as well. */
3990 if (*standard_startfile_prefix
== '/')
3991 add_prefix (&startfile_prefix
, standard_startfile_prefix
, 0, 0,
3995 if (gcc_exec_prefix
)
3996 add_prefix (&startfile_prefix
,
3997 concat (gcc_exec_prefix
,
3998 standard_startfile_prefix
,
4001 add_prefix (&startfile_prefix
,
4002 concat (standard_exec_prefix
,
4004 standard_startfile_prefix
),
4008 add_prefix (&startfile_prefix
, standard_startfile_prefix_1
, 0, 0,
4010 add_prefix (&startfile_prefix
, standard_startfile_prefix_2
, 0, 0,
4012 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4013 add_prefix (&startfile_prefix
, "./", 0, 1, NULL_PTR
);
4017 /* Now we have the specs.
4018 Set the `valid' bits for switches that match anything in any spec. */
4020 validate_all_switches ();
4022 /* Warn about any switches that no pass was interested in. */
4024 for (i
= 0; i
< n_switches
; i
++)
4025 if (! switches
[i
].valid
)
4026 error ("unrecognized option `-%s'", switches
[i
].part1
);
4028 /* Obey some of the options. */
4030 if (print_file_name
)
4032 printf ("%s\n", find_file (print_file_name
));
4036 if (print_prog_name
)
4038 char *newname
= find_a_file (&exec_prefix
, print_prog_name
, X_OK
);
4039 printf ("%s\n", (newname
? newname
: print_prog_name
));
4045 fprintf (stderr
, "gcc version %s\n", version_string
);
4051 fatal ("No input files");
4053 /* Make a place to record the compiler output file names
4054 that correspond to the input files. */
4056 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4057 bzero (outfiles
, n_infiles
* sizeof (char *));
4059 /* Record which files were specified explicitly as link input. */
4061 explicit_link_files
= xmalloc (n_infiles
);
4062 bzero (explicit_link_files
, n_infiles
);
4064 for (i
= 0; i
< n_infiles
; i
++)
4066 register struct compiler
*cp
= 0;
4067 int this_file_error
= 0;
4069 /* Tell do_spec what to substitute for %i. */
4071 input_filename
= infiles
[i
].name
;
4072 input_filename_length
= strlen (input_filename
);
4073 input_file_number
= i
;
4075 /* Use the same thing in %o, unless cp->spec says otherwise. */
4077 outfiles
[i
] = input_filename
;
4079 /* Figure out which compiler from the file's suffix. */
4081 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4082 infiles
[i
].language
);
4086 /* Ok, we found an applicable compiler. Run its spec. */
4087 /* First say how much of input_filename to substitute for %b */
4091 input_basename
= input_filename
;
4092 for (p
= input_filename
; *p
; p
++)
4094 input_basename
= p
+ 1;
4096 /* Find a suffix starting with the last period,
4097 and set basename_length to exclude that suffix. */
4098 basename_length
= strlen (input_basename
);
4099 p
= input_basename
+ basename_length
;
4100 while (p
!= input_basename
&& *p
!= '.') --p
;
4101 if (*p
== '.' && p
!= input_basename
)
4103 basename_length
= p
- input_basename
;
4104 input_suffix
= p
+ 1;
4110 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4112 len
+= strlen (cp
->spec
[j
]);
4114 p
= (char *) xmalloc (len
+ 1);
4117 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4120 strcpy (p
+ len
, cp
->spec
[j
]);
4121 len
+= strlen (cp
->spec
[j
]);
4124 value
= do_spec (p
);
4127 this_file_error
= 1;
4130 /* If this file's name does not contain a recognized suffix,
4131 record it as explicit linker input. */
4134 explicit_link_files
[i
] = 1;
4136 /* Clear the delete-on-failure queue, deleting the files in it
4137 if this compilation failed. */
4139 if (this_file_error
)
4141 delete_failure_queue ();
4144 /* If this compilation succeeded, don't delete those files later. */
4145 clear_failure_queue ();
4148 /* Run ld to link all the compiler output files. */
4150 if (error_count
== 0)
4152 int tmp
= execution_count
;
4156 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4158 putenv_from_prefixes (&exec_prefix
, "COMPILER_PATH=");
4159 putenv_from_prefixes (&startfile_prefix
, "LIBRARY_PATH=");
4161 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4163 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4164 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4167 for (i
= 0; i
< n_switches
; i
++)
4171 obstack_grow (&collect_obstack
, " ", 1);
4174 obstack_grow (&collect_obstack
, "-", 1);
4175 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4176 strlen (switches
[i
].part1
));
4178 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4180 obstack_grow (&collect_obstack
, " ", 1);
4181 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4184 obstack_grow (&collect_obstack
, "\0", 1);
4185 putenv (obstack_finish (&collect_obstack
));
4187 value
= do_spec (link_command_spec
);
4190 linker_was_run
= (tmp
!= execution_count
);
4193 /* Warn if a -B option was specified but the prefix was never used. */
4194 unused_prefix_warnings (&exec_prefix
);
4195 unused_prefix_warnings (&startfile_prefix
);
4197 /* If options said don't run linker,
4198 complain about input files to be given to the linker. */
4200 if (! linker_was_run
&& error_count
== 0)
4201 for (i
= 0; i
< n_infiles
; i
++)
4202 if (explicit_link_files
[i
])
4203 error ("%s: linker input file unused since linking not done",
4206 /* Delete some or all of the temporary files we made. */
4209 delete_failure_queue ();
4210 delete_temp_files ();
4212 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4217 /* Find the proper compilation spec for the file name NAME,
4218 whose length is LENGTH. LANGUAGE is the specified language,
4219 or 0 if none specified. */
4221 static struct compiler
*
4222 lookup_compiler (name
, length
, language
)
4227 struct compiler
*cp
;
4229 /* Look for the language, if one is spec'd. */
4232 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4236 if (cp
->suffix
[0] == '@'
4237 && !strcmp (cp
->suffix
+ 1, language
))
4241 error ("language %s not recognized", language
);
4244 /* Look for a suffix. */
4245 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4247 if (/* The suffix `-' matches only the file name `-'. */
4248 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4250 (strlen (cp
->suffix
) < length
4251 /* See if the suffix matches the end of NAME. */
4252 && !strcmp (cp
->suffix
,
4253 name
+ length
- strlen (cp
->suffix
))))
4255 if (cp
->spec
[0][0] == '@')
4257 struct compiler
*new;
4258 /* An alias entry maps a suffix to a language.
4259 Search for the language; pass 0 for NAME and LENGTH
4260 to avoid infinite recursion if language not found.
4261 Construct the new compiler spec. */
4262 language
= cp
->spec
[0] + 1;
4263 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4264 new->suffix
= cp
->suffix
;
4265 bcopy (lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4266 new->spec
, sizeof new->spec
);
4269 /* A non-alias entry: return it. */
4281 register char *value
= (char *) malloc (size
);
4283 fatal ("virtual memory exhausted");
4288 xrealloc (ptr
, size
)
4292 register char *value
= (char *) realloc (ptr
, size
);
4294 fatal ("virtual memory exhausted");
4298 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4304 int len1
= strlen (s1
), len2
= strlen (s2
), len3
= strlen (s3
);
4305 char *result
= xmalloc (len1
+ len2
+ len3
+ 1);
4307 strcpy (result
, s1
);
4308 strcpy (result
+ len1
, s2
);
4309 strcpy (result
+ len1
+ len2
, s3
);
4310 *(result
+ len1
+ len2
+ len3
) = 0;
4316 save_string (s
, len
)
4320 register char *result
= xmalloc (len
+ 1);
4322 bcopy (s
, result
, len
);
4328 pfatal_with_name (name
)
4333 if (errno
< sys_nerr
)
4334 s
= concat ("%s: ", sys_errlist
[errno
], "");
4336 s
= "cannot open %s";
4341 perror_with_name (name
)
4346 if (errno
< sys_nerr
)
4347 s
= concat ("%s: ", sys_errlist
[errno
], "");
4349 s
= "cannot open %s";
4359 if (errno
< sys_nerr
)
4360 s
= concat ("installation problem, cannot exec %s: ",
4361 sys_errlist
[errno
], "");
4363 s
= "installation problem, cannot exec %s";
4367 /* More 'friendly' abort that prints the line and file.
4368 config.h can #define abort fancy_abort if you like that sort of thing. */
4373 fatal ("Internal gcc abort.");
4378 /* Output an error message and exit */
4381 fatal
VPROTO((char *format
, ...))
4388 VA_START (ap
, format
);
4391 format
= va_arg (ap
, char*);
4394 fprintf (stderr
, "%s: ", programname
);
4395 vfprintf (stderr
, format
, ap
);
4397 fprintf (stderr
, "\n");
4398 delete_temp_files ();
4403 error
VPROTO((char *format
, ...))
4410 VA_START (ap
, format
);
4413 format
= va_arg (ap
, char*);
4416 fprintf (stderr
, "%s: ", programname
);
4417 vfprintf (stderr
, format
, ap
);
4420 fprintf (stderr
, "\n");
4423 #else /* not HAVE_VPRINTF */
4426 fatal (msg
, arg1
, arg2
)
4427 char *msg
, *arg1
, *arg2
;
4429 error (msg
, arg1
, arg2
);
4430 delete_temp_files ();
4435 error (msg
, arg1
, arg2
)
4436 char *msg
, *arg1
, *arg2
;
4438 fprintf (stderr
, "%s: ", programname
);
4439 fprintf (stderr
, msg
, arg1
, arg2
);
4440 fprintf (stderr
, "\n");
4443 #endif /* not HAVE_VPRINTF */
4447 validate_all_switches ()
4449 struct compiler
*comp
;
4452 struct spec_list
*spec
;
4454 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4457 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4461 if (c
== '%' && *p
== '{')
4462 /* We have a switch spec. */
4463 validate_switches (p
+ 1);
4467 /* look through the linked list of extra specs read from the specs file */
4468 for (spec
= specs
; spec
; spec
= spec
->next
)
4472 if (c
== '%' && *p
== '{')
4473 /* We have a switch spec. */
4474 validate_switches (p
+ 1);
4477 p
= link_command_spec
;
4479 if (c
== '%' && *p
== '{')
4480 /* We have a switch spec. */
4481 validate_switches (p
+ 1);
4483 /* Now notice switches mentioned in the machine-specific specs. */
4487 if (c
== '%' && *p
== '{')
4488 /* We have a switch spec. */
4489 validate_switches (p
+ 1);
4493 if (c
== '%' && *p
== '{')
4494 /* We have a switch spec. */
4495 validate_switches (p
+ 1);
4499 if (c
== '%' && *p
== '{')
4500 /* We have a switch spec. */
4501 validate_switches (p
+ 1);
4503 p
= signed_char_spec
;
4505 if (c
== '%' && *p
== '{')
4506 /* We have a switch spec. */
4507 validate_switches (p
+ 1);
4511 if (c
== '%' && *p
== '{')
4512 /* We have a switch spec. */
4513 validate_switches (p
+ 1);
4517 if (c
== '%' && *p
== '{')
4518 /* We have a switch spec. */
4519 validate_switches (p
+ 1);
4523 if (c
== '%' && *p
== '{')
4524 /* We have a switch spec. */
4525 validate_switches (p
+ 1);
4529 if (c
== '%' && *p
== '{')
4530 /* We have a switch spec. */
4531 validate_switches (p
+ 1);
4535 if (c
== '%' && *p
== '{')
4536 /* We have a switch spec. */
4537 validate_switches (p
+ 1);
4540 /* Look at the switch-name that comes after START
4541 and mark as valid all supplied switches that match it. */
4544 validate_switches (start
)
4547 register char *p
= start
;
4562 while (*p
!= ':' && *p
!= '}') p
++;
4566 else if (p
[-1] == '*')
4568 /* Mark all matching switches as valid. */
4570 for (i
= 0; i
< n_switches
; i
++)
4571 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4572 switches
[i
].valid
= 1;
4576 /* Mark an exact matching switch as valid. */
4577 for (i
= 0; i
< n_switches
; i
++)
4579 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4580 && switches
[i
].part1
[p
- filter
] == 0)
4581 switches
[i
].valid
= 1;