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 ((char *) compilers
[n_compilers
].spec
,
1035 sizeof compilers
[n_compilers
].spec
);
1036 compilers
[n_compilers
].spec
[0] = spec
;
1038 bzero ((char *) &compilers
[n_compilers
],
1039 sizeof compilers
[n_compilers
]);
1043 link_command_spec
= spec
;
1046 if (link_command_spec
== 0)
1047 fatal ("spec file has no spec for linking");
1056 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1057 be considered whitespace. */
1058 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1060 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1064 while (*p
!= '\n') p
++;
1074 /* Structure to keep track of the specs that have been defined so far. These
1075 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1079 char *name
; /* Name of the spec. */
1080 char *spec
; /* The spec itself. */
1081 struct spec_list
*next
; /* Next spec in linked list. */
1084 /* List of specs that have been defined so far. */
1086 static struct spec_list
*specs
= (struct spec_list
*) 0;
1088 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1089 removed; If the spec starts with a + then SPEC is added to the end of the
1093 set_spec (name
, spec
)
1097 struct spec_list
*sl
;
1100 /* See if the spec already exists */
1101 for (sl
= specs
; sl
; sl
= sl
->next
)
1102 if (strcmp (sl
->name
, name
) == 0)
1107 /* Not found - make it */
1108 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1109 sl
->name
= save_string (name
, strlen (name
));
1110 sl
->spec
= save_string ("", 0);
1115 old_spec
= sl
->spec
;
1116 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1117 sl
->spec
= concat (old_spec
, spec
+ 1, "");
1119 sl
->spec
= save_string (spec
, strlen (spec
));
1121 if (! strcmp (name
, "asm"))
1122 asm_spec
= sl
->spec
;
1123 else if (! strcmp (name
, "asm_final"))
1124 asm_final_spec
= sl
->spec
;
1125 else if (! strcmp (name
, "cc1"))
1126 cc1_spec
= sl
->spec
;
1127 else if (! strcmp (name
, "cc1plus"))
1128 cc1plus_spec
= sl
->spec
;
1129 else if (! strcmp (name
, "cpp"))
1130 cpp_spec
= sl
->spec
;
1131 else if (! strcmp (name
, "endfile"))
1132 endfile_spec
= sl
->spec
;
1133 else if (! strcmp (name
, "lib"))
1134 lib_spec
= sl
->spec
;
1135 else if (! strcmp (name
, "link"))
1136 link_spec
= sl
->spec
;
1137 else if (! strcmp (name
, "predefines"))
1138 cpp_predefines
= sl
->spec
;
1139 else if (! strcmp (name
, "signed_char"))
1140 signed_char_spec
= sl
->spec
;
1141 else if (! strcmp (name
, "startfile"))
1142 startfile_spec
= sl
->spec
;
1143 else if (! strcmp (name
, "switches_need_spaces"))
1144 switches_need_spaces
= sl
->spec
;
1145 else if (! strcmp (name
, "cross_compile"))
1146 cross_compile
= atoi (sl
->spec
);
1147 /* Free the old spec */
1152 /* Accumulate a command (program name and args), and run it. */
1154 /* Vector of pointers to arguments in the current line of specifications. */
1156 static char **argbuf
;
1158 /* Number of elements allocated in argbuf. */
1160 static int argbuf_length
;
1162 /* Number of elements in argbuf currently in use (containing args). */
1164 static int argbuf_index
;
1166 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1167 temp file. Used only if MKTEMP_EACH_FILE. */
1169 static struct temp_name
{
1170 char *suffix
; /* suffix associated with the code. */
1171 int length
; /* strlen (suffix). */
1172 int unique
; /* Indicates whether %g or %u/%U was used. */
1173 char *filename
; /* associated filename. */
1174 int filename_length
; /* strlen (filename). */
1175 struct temp_name
*next
;
1178 /* Number of commands executed so far. */
1180 static int execution_count
;
1182 /* Number of commands that exited with a signal. */
1184 static int signal_count
;
1186 /* Name with which this program was invoked. */
1188 static char *programname
;
1190 /* Structures to keep track of prefixes to try when looking for files. */
1194 char *prefix
; /* String to prepend to the path. */
1195 struct prefix_list
*next
; /* Next in linked list. */
1196 int require_machine_suffix
; /* Don't use without machine_suffix. */
1197 /* 2 means try both machine_suffix and just_machine_suffix. */
1198 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1203 struct prefix_list
*plist
; /* List of prefixes to try */
1204 int max_len
; /* Max length of a prefix in PLIST */
1205 char *name
; /* Name of this list (used in config stuff) */
1208 /* List of prefixes to try when looking for executables. */
1210 static struct path_prefix exec_prefix
= { 0, 0, "exec" };
1212 /* List of prefixes to try when looking for startup (crt0) files. */
1214 static struct path_prefix startfile_prefix
= { 0, 0, "startfile" };
1216 /* List of prefixes to try when looking for include files. */
1218 static struct path_prefix include_prefix
= { 0, 0, "include" };
1220 /* Suffix to attach to directories searched for commands.
1221 This looks like `MACHINE/VERSION/'. */
1223 static char *machine_suffix
= 0;
1225 /* Suffix to attach to directories searched for commands.
1226 This is just `MACHINE/'. */
1228 static char *just_machine_suffix
= 0;
1230 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1232 static char *gcc_exec_prefix
;
1234 /* Default prefixes to attach to command names. */
1236 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1237 #undef MD_EXEC_PREFIX
1238 #undef MD_STARTFILE_PREFIX
1239 #undef MD_STARTFILE_PREFIX_1
1242 #ifndef STANDARD_EXEC_PREFIX
1243 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1244 #endif /* !defined STANDARD_EXEC_PREFIX */
1246 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1247 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1248 #ifdef MD_EXEC_PREFIX
1249 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1252 #ifndef STANDARD_STARTFILE_PREFIX
1253 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1254 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1256 #ifdef MD_STARTFILE_PREFIX
1257 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1259 #ifdef MD_STARTFILE_PREFIX_1
1260 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1262 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1263 static char *standard_startfile_prefix_1
= "/lib/";
1264 static char *standard_startfile_prefix_2
= "/usr/lib/";
1266 #ifndef TOOLDIR_BASE_PREFIX
1267 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1269 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1270 static char *tooldir_prefix
;
1272 /* Clear out the vector of arguments (after a command is executed). */
1280 /* Add one argument to the vector at the end.
1281 This is done when a space is seen or at the end of the line.
1282 If DELETE_ALWAYS is nonzero, the arg is a filename
1283 and the file should be deleted eventually.
1284 If DELETE_FAILURE is nonzero, the arg is a filename
1285 and the file should be deleted if this compilation fails. */
1288 store_arg (arg
, delete_always
, delete_failure
)
1290 int delete_always
, delete_failure
;
1292 if (argbuf_index
+ 1 == argbuf_length
)
1294 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1297 argbuf
[argbuf_index
++] = arg
;
1298 argbuf
[argbuf_index
] = 0;
1300 if (delete_always
|| delete_failure
)
1301 record_temp_file (arg
, delete_always
, delete_failure
);
1304 /* Record the names of temporary files we tell compilers to write,
1305 and delete them at the end of the run. */
1307 /* This is the common prefix we use to make temp file names.
1308 It is chosen once for each run of this program.
1309 It is substituted into a spec by %g.
1310 Thus, all temp file names contain this prefix.
1311 In practice, all temp file names start with this prefix.
1313 This prefix comes from the envvar TMPDIR if it is defined;
1314 otherwise, from the P_tmpdir macro if that is defined;
1315 otherwise, in /usr/tmp or /tmp. */
1317 static char *temp_filename
;
1319 /* Length of the prefix. */
1321 static int temp_filename_length
;
1323 /* Define the list of temporary files to delete. */
1328 struct temp_file
*next
;
1331 /* Queue of files to delete on success or failure of compilation. */
1332 static struct temp_file
*always_delete_queue
;
1333 /* Queue of files to delete on failure of compilation. */
1334 static struct temp_file
*failure_delete_queue
;
1336 /* Record FILENAME as a file to be deleted automatically.
1337 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1338 otherwise delete it in any case.
1339 FAIL_DELETE nonzero means delete it if a compilation step fails;
1340 otherwise delete it in any case. */
1343 record_temp_file (filename
, always_delete
, fail_delete
)
1348 register char *name
;
1349 name
= xmalloc (strlen (filename
) + 1);
1350 strcpy (name
, filename
);
1354 register struct temp_file
*temp
;
1355 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1356 if (! strcmp (name
, temp
->name
))
1358 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1359 temp
->next
= always_delete_queue
;
1361 always_delete_queue
= temp
;
1367 register struct temp_file
*temp
;
1368 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1369 if (! strcmp (name
, temp
->name
))
1371 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1372 temp
->next
= failure_delete_queue
;
1374 failure_delete_queue
= temp
;
1379 /* Delete all the temporary files whose names we previously recorded. */
1382 delete_if_ordinary (name
)
1389 printf ("Delete %s? (y or n) ", name
);
1393 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1394 if (i
== 'y' || i
== 'Y')
1396 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1397 if (unlink (name
) < 0)
1399 perror_with_name (name
);
1403 delete_temp_files ()
1405 register struct temp_file
*temp
;
1407 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1408 delete_if_ordinary (temp
->name
);
1409 always_delete_queue
= 0;
1412 /* Delete all the files to be deleted on error. */
1415 delete_failure_queue ()
1417 register struct temp_file
*temp
;
1419 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1420 delete_if_ordinary (temp
->name
);
1424 clear_failure_queue ()
1426 failure_delete_queue
= 0;
1429 /* Compute a string to use as the base of all temporary file names.
1430 It is substituted for %g. */
1433 choose_temp_base_try (try, base
)
1440 else if (try == (char *)0)
1442 else if (access (try, R_OK
| W_OK
) != 0)
1455 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1456 base
= choose_temp_base_try (getenv ("TMP"), base
);
1457 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1460 base
= choose_temp_base_try (P_tmpdir
, base
);
1463 base
= choose_temp_base_try ("/usr/tmp", base
);
1464 base
= choose_temp_base_try ("/tmp", base
);
1466 /* If all else fails, use the current directory! */
1467 if (base
== (char *)0)
1470 len
= strlen (base
);
1471 temp_filename
= xmalloc (len
+ sizeof("/ccXXXXXX") + 1);
1472 strcpy (temp_filename
, base
);
1473 if (len
> 0 && temp_filename
[len
-1] != '/')
1474 temp_filename
[len
++] = '/';
1475 strcpy (temp_filename
+ len
, "ccXXXXXX");
1477 mktemp (temp_filename
);
1478 temp_filename_length
= strlen (temp_filename
);
1479 if (temp_filename_length
== 0)
1484 /* Routine to add variables to the environment. We do this to pass
1485 the pathname of the gcc driver, and the directories search to the
1486 collect2 program, which is being run as ld. This way, we can be
1487 sure of executing the right compiler when collect2 wants to build
1488 constructors and destructors. Since the environment variables we
1489 use come from an obstack, we don't have to worry about allocating
1498 #ifndef VMS /* nor about VMS */
1500 extern char **environ
;
1501 char **old_environ
= environ
;
1505 int str_len
= strlen (str
);
1509 while ((ch
= *p
++) != '\0' && ch
!= '=')
1515 /* Search for replacing an existing environment variable, and
1516 count the number of total environment variables. */
1517 for (envp
= old_environ
; *envp
; envp
++)
1520 if (!strncmp (str
, *envp
, name_len
))
1527 /* Add a new environment variable */
1528 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1530 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1531 sizeof (char *) * (num_envs
+1));
1536 #endif /* HAVE_PUTENV */
1539 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1542 putenv_from_prefixes (paths
, env_var
)
1543 struct path_prefix
*paths
;
1546 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1548 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1549 int first_time
= TRUE
;
1550 struct prefix_list
*pprefix
;
1552 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1554 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1556 int len
= strlen (pprefix
->prefix
);
1559 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1562 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1565 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1566 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1569 if (just_machine_suffix
1570 && pprefix
->require_machine_suffix
== 2
1571 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1574 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1577 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1578 obstack_grow (&collect_obstack
, just_machine_suffix
,
1582 if (!pprefix
->require_machine_suffix
)
1585 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1588 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1591 obstack_1grow (&collect_obstack
, '\0');
1592 putenv (obstack_finish (&collect_obstack
));
1596 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1597 access to check permissions.
1598 Return 0 if not found, otherwise return its name, allocated with malloc. */
1601 find_a_file (pprefix
, name
, mode
)
1602 struct path_prefix
*pprefix
;
1607 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1608 struct prefix_list
*pl
;
1609 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1612 len
+= strlen (machine_suffix
);
1614 temp
= xmalloc (len
);
1616 /* Determine the filename to execute (special case for absolute paths). */
1620 if (access (name
, mode
))
1622 strcpy (temp
, name
);
1627 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1631 /* Some systems have a suffix for executable files.
1632 So try appending that first. */
1633 if (file_suffix
[0] != 0)
1635 strcpy (temp
, pl
->prefix
);
1636 strcat (temp
, machine_suffix
);
1637 strcat (temp
, name
);
1638 strcat (temp
, file_suffix
);
1639 if (access (temp
, mode
) == 0)
1641 if (pl
->used_flag_ptr
!= 0)
1642 *pl
->used_flag_ptr
= 1;
1647 /* Now try just the name. */
1648 strcpy (temp
, pl
->prefix
);
1649 strcat (temp
, machine_suffix
);
1650 strcat (temp
, name
);
1651 if (access (temp
, mode
) == 0)
1653 if (pl
->used_flag_ptr
!= 0)
1654 *pl
->used_flag_ptr
= 1;
1659 /* Certain prefixes are tried with just the machine type,
1660 not the version. This is used for finding as, ld, etc. */
1661 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1663 /* Some systems have a suffix for executable files.
1664 So try appending that first. */
1665 if (file_suffix
[0] != 0)
1667 strcpy (temp
, pl
->prefix
);
1668 strcat (temp
, just_machine_suffix
);
1669 strcat (temp
, name
);
1670 strcat (temp
, file_suffix
);
1671 if (access (temp
, mode
) == 0)
1673 if (pl
->used_flag_ptr
!= 0)
1674 *pl
->used_flag_ptr
= 1;
1679 strcpy (temp
, pl
->prefix
);
1680 strcat (temp
, just_machine_suffix
);
1681 strcat (temp
, name
);
1682 if (access (temp
, mode
) == 0)
1684 if (pl
->used_flag_ptr
!= 0)
1685 *pl
->used_flag_ptr
= 1;
1690 /* Certain prefixes can't be used without the machine suffix
1691 when the machine or version is explicitly specified. */
1692 if (!pl
->require_machine_suffix
)
1694 /* Some systems have a suffix for executable files.
1695 So try appending that first. */
1696 if (file_suffix
[0] != 0)
1698 strcpy (temp
, pl
->prefix
);
1699 strcat (temp
, name
);
1700 strcat (temp
, file_suffix
);
1701 if (access (temp
, mode
) == 0)
1703 if (pl
->used_flag_ptr
!= 0)
1704 *pl
->used_flag_ptr
= 1;
1709 strcpy (temp
, pl
->prefix
);
1710 strcat (temp
, name
);
1711 if (access (temp
, mode
) == 0)
1713 if (pl
->used_flag_ptr
!= 0)
1714 *pl
->used_flag_ptr
= 1;
1724 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1725 at the start of the list, otherwise it goes at the end.
1727 If WARN is nonzero, we will warn if no file is found
1728 through this prefix. WARN should point to an int
1729 which will be set to 1 if this entry is used.
1731 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1732 the complete value of machine_suffix.
1733 2 means try both machine_suffix and just_machine_suffix. */
1736 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1737 struct path_prefix
*pprefix
;
1740 int require_machine_suffix
;
1743 struct prefix_list
*pl
, **prev
;
1746 if (!first
&& pprefix
->plist
)
1748 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1753 prev
= &pprefix
->plist
;
1755 /* Keep track of the longest prefix */
1757 len
= strlen (prefix
);
1758 if (len
> pprefix
->max_len
)
1759 pprefix
->max_len
= len
;
1761 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1762 pl
->prefix
= save_string (prefix
, len
);
1763 pl
->require_machine_suffix
= require_machine_suffix
;
1764 pl
->used_flag_ptr
= warn
;
1771 pl
->next
= (struct prefix_list
*) 0;
1775 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1778 unused_prefix_warnings (pprefix
)
1779 struct path_prefix
*pprefix
;
1781 struct prefix_list
*pl
= pprefix
->plist
;
1785 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1787 error ("file path prefix `%s' never used",
1789 /* Prevent duplicate warnings. */
1790 *pl
->used_flag_ptr
= 1;
1796 /* Get rid of all prefixes built up so far in *PLISTP. */
1799 free_path_prefix (pprefix
)
1800 struct path_prefix
*pprefix
;
1802 struct prefix_list
*pl
= pprefix
->plist
;
1803 struct prefix_list
*temp
;
1809 free (temp
->prefix
);
1810 free ((char *) temp
);
1812 pprefix
->plist
= (struct prefix_list
*) 0;
1815 /* stdin file number. */
1816 #define STDIN_FILE_NO 0
1818 /* stdout file number. */
1819 #define STDOUT_FILE_NO 1
1821 /* value of `pipe': port index for reading. */
1824 /* value of `pipe': port index for writing. */
1825 #define WRITE_PORT 1
1827 /* Pipe waiting from last process, to be used as input for the next one.
1828 Value is STDIN_FILE_NO if no pipe is waiting
1829 (i.e. the next command is the first of a group). */
1831 static int last_pipe_input
;
1833 /* Fork one piped subcommand. FUNC is the system call to use
1834 (either execv or execvp). ARGV is the arg vector to use.
1835 NOT_LAST is nonzero if this is not the last subcommand
1836 (i.e. its output should be piped to the next one.) */
1841 /* Declare these to avoid compilation error. They won't be called. */
1842 int execv(const char *a
, const char **b
){}
1843 int execvp(const char *a
, const char **b
){}
1846 pexecute (search_flag
, program
, argv
, not_last
)
1854 int i
, el
= search_flag
? 0 : 4;
1856 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1857 rf
= scmd
+ strlen(program
) + 2 + el
;
1858 sprintf (scmd
, "%s%s @%s.gp", program
,
1859 (search_flag
? "" : ".exe"), temp_filename
);
1860 argfile
= fopen (rf
, "w");
1862 pfatal_with_name (rf
);
1864 for (i
=1; argv
[i
]; i
++)
1867 for (cp
= argv
[i
]; *cp
; cp
++)
1869 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1870 fputc ('\\', argfile
);
1871 fputc (*cp
, argfile
);
1873 fputc ('\n', argfile
);
1883 perror_exec (program
);
1884 return MIN_FATAL_STATUS
<< 8;
1890 #else /* not __MSDOS__ */
1893 pexecute (search_flag
, program
, argv
, not_last
)
1899 int (*func
)() = (search_flag
? execv
: execvp
);
1902 int input_desc
= last_pipe_input
;
1903 int output_desc
= STDOUT_FILE_NO
;
1904 int retries
, sleep_interval
;
1906 /* If this isn't the last process, make a pipe for its output,
1907 and record it as waiting to be the input to the next process. */
1911 if (pipe (pdes
) < 0)
1912 pfatal_with_name ("pipe");
1913 output_desc
= pdes
[WRITE_PORT
];
1914 last_pipe_input
= pdes
[READ_PORT
];
1917 last_pipe_input
= STDIN_FILE_NO
;
1919 /* Fork a subprocess; wait and retry if it fails. */
1921 for (retries
= 0; retries
< 4; retries
++)
1926 sleep (sleep_interval
);
1927 sleep_interval
*= 2;
1934 pfatal_with_name ("fork");
1936 pfatal_with_name ("vfork");
1942 /* Move the input and output pipes into place, if nec. */
1943 if (input_desc
!= STDIN_FILE_NO
)
1945 close (STDIN_FILE_NO
);
1949 if (output_desc
!= STDOUT_FILE_NO
)
1951 close (STDOUT_FILE_NO
);
1953 close (output_desc
);
1956 /* Close the parent's descs that aren't wanted here. */
1957 if (last_pipe_input
!= STDIN_FILE_NO
)
1958 close (last_pipe_input
);
1960 /* Exec the program. */
1961 (*func
) (program
, argv
);
1962 perror_exec (program
);
1968 /* In the parent, after forking.
1969 Close the descriptors that we made for this child. */
1970 if (input_desc
!= STDIN_FILE_NO
)
1972 if (output_desc
!= STDOUT_FILE_NO
)
1973 close (output_desc
);
1975 /* Return child's process number. */
1980 #endif /* not __MSDOS__ */
1984 pexecute (search_flag
, program
, argv
, not_last
)
1990 return (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1992 #endif /* not OS2 */
1994 /* Execute the command specified by the arguments on the current line of spec.
1995 When using pipes, this includes several piped-together commands
1996 with `|' between them.
1998 Return 0 if successful, -1 if failed. */
2004 int n_commands
; /* # of command. */
2008 char *prog
; /* program name. */
2009 char **argv
; /* vector of args. */
2010 int pid
; /* pid of process for this command. */
2013 struct command
*commands
; /* each command buffer with above info. */
2015 /* Count # of piped commands. */
2016 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2017 if (strcmp (argbuf
[i
], "|") == 0)
2020 /* Get storage for each command. */
2022 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2024 /* Split argbuf into its separate piped processes,
2025 and record info about each one.
2026 Also search for the programs that are to be run. */
2028 commands
[0].prog
= argbuf
[0]; /* first command. */
2029 commands
[0].argv
= &argbuf
[0];
2030 string
= find_a_file (&exec_prefix
, commands
[0].prog
, X_OK
);
2032 commands
[0].argv
[0] = string
;
2034 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2035 if (strcmp (argbuf
[i
], "|") == 0)
2036 { /* each command. */
2038 fatal ("-pipe not supported under MS-DOS");
2040 argbuf
[i
] = 0; /* termination of command args. */
2041 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2042 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2043 string
= find_a_file (&exec_prefix
, commands
[n_commands
].prog
, X_OK
);
2045 commands
[n_commands
].argv
[0] = string
;
2049 argbuf
[argbuf_index
] = 0;
2051 /* If -v, print what we are about to do, and maybe query. */
2055 /* Print each piped command as a separate line. */
2056 for (i
= 0; i
< n_commands
; i
++)
2060 for (j
= commands
[i
].argv
; *j
; j
++)
2061 fprintf (stderr
, " %s", *j
);
2063 /* Print a pipe symbol after all but the last command. */
2064 if (i
+ 1 != n_commands
)
2065 fprintf (stderr
, " |");
2066 fprintf (stderr
, "\n");
2070 fprintf (stderr
, "\nGo ahead? (y or n) ");
2074 while (getchar () != '\n') ;
2075 if (i
!= 'y' && i
!= 'Y')
2080 /* Run each piped subprocess. */
2082 last_pipe_input
= STDIN_FILE_NO
;
2083 for (i
= 0; i
< n_commands
; i
++)
2085 char *string
= commands
[i
].argv
[0];
2087 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2088 string
, commands
[i
].argv
,
2089 i
+ 1 < n_commands
);
2091 if (string
!= commands
[i
].prog
)
2097 /* Wait for all the subprocesses to finish.
2098 We don't care what order they finish in;
2099 we know that N_COMMANDS waits will get them all. */
2104 for (i
= 0; i
< n_commands
; i
++)
2108 char *prog
= "unknown";
2111 status
= pid
= commands
[i
].pid
;
2113 pid
= wait (&status
);
2121 for (j
= 0; j
< n_commands
; j
++)
2122 if (commands
[j
].pid
== pid
)
2123 prog
= commands
[j
].prog
;
2125 if ((status
& 0x7F) != 0)
2127 fatal ("Internal compiler error: program %s got fatal signal %d",
2128 prog
, (status
& 0x7F));
2131 if (((status
& 0xFF00) >> 8) >= MIN_FATAL_STATUS
)
2139 /* Find all the switches given to us
2140 and make a vector describing them.
2141 The elements of the vector are strings, one per switch given.
2142 If a switch uses following arguments, then the `part1' field
2143 is the switch itself and the `args' field
2144 is a null-terminated vector containing the following arguments.
2145 The `live_cond' field is 1 if the switch is true in a conditional spec,
2146 -1 if false (overridden by a later switch), and is initialized to zero.
2147 The `valid' field is nonzero if any spec has looked at this switch;
2148 if it remains zero at the end of the run, it must be meaningless. */
2158 static struct switchstr
*switches
;
2160 static int n_switches
;
2168 /* Also a vector of input files specified. */
2170 static struct infile
*infiles
;
2172 static int n_infiles
;
2174 /* And a vector of corresponding output files is made up later. */
2176 static char **outfiles
;
2178 /* Create the vector `switches' and its contents.
2179 Store its length in `n_switches'. */
2182 process_command (argc
, argv
)
2188 char *spec_lang
= 0;
2189 int last_language_n_infiles
;
2191 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2196 /* Figure compiler version from version string. */
2198 compiler_version
= save_string (version_string
, strlen (version_string
));
2199 for (temp
= compiler_version
; *temp
; ++temp
)
2208 /* Set up the default search paths. */
2210 if (gcc_exec_prefix
)
2212 add_prefix (&exec_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2213 add_prefix (&startfile_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2216 /* COMPILER_PATH and LIBRARY_PATH have values
2217 that are lists of directory names with colons. */
2219 temp
= getenv ("COMPILER_PATH");
2222 char *startp
, *endp
;
2223 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2225 startp
= endp
= temp
;
2228 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2230 strncpy (nstore
, startp
, endp
-startp
);
2233 strcpy (nstore
, "./");
2235 else if (endp
[-1] != '/')
2237 nstore
[endp
-startp
] = '/';
2238 nstore
[endp
-startp
+1] = 0;
2241 nstore
[endp
-startp
] = 0;
2242 add_prefix (&exec_prefix
, nstore
, 0, 0, NULL_PTR
);
2245 endp
= startp
= endp
+ 1;
2252 temp
= getenv ("LIBRARY_PATH");
2255 char *startp
, *endp
;
2256 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2258 startp
= endp
= temp
;
2261 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2263 strncpy (nstore
, startp
, endp
-startp
);
2266 strcpy (nstore
, "./");
2268 else if (endp
[-1] != '/')
2270 nstore
[endp
-startp
] = '/';
2271 nstore
[endp
-startp
+1] = 0;
2274 nstore
[endp
-startp
] = 0;
2275 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2278 endp
= startp
= endp
+ 1;
2285 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2286 temp
= getenv ("LPATH");
2289 char *startp
, *endp
;
2290 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2292 startp
= endp
= temp
;
2295 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2297 strncpy (nstore
, startp
, endp
-startp
);
2300 strcpy (nstore
, "./");
2302 else if (endp
[-1] != '/')
2304 nstore
[endp
-startp
] = '/';
2305 nstore
[endp
-startp
+1] = 0;
2308 nstore
[endp
-startp
] = 0;
2309 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2312 endp
= startp
= endp
+ 1;
2319 /* Convert new-style -- options to old-style. */
2320 translate_options (&argc
, &argv
);
2322 /* Scan argv twice. Here, the first time, just count how many switches
2323 there will be in their vector, and how many input files in theirs.
2324 Here we also parse the switches that cc itself uses (e.g. -v). */
2326 for (i
= 1; i
< argc
; i
++)
2328 if (! strcmp (argv
[i
], "-dumpspecs"))
2330 printf ("*asm:\n%s\n\n", asm_spec
);
2331 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2332 printf ("*cpp:\n%s\n\n", cpp_spec
);
2333 printf ("*cc1:\n%s\n\n", cc1_spec
);
2334 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2335 printf ("*endfile:\n%s\n\n", endfile_spec
);
2336 printf ("*link:\n%s\n\n", link_spec
);
2337 printf ("*lib:\n%s\n\n", lib_spec
);
2338 printf ("*startfile:\n%s\n\n", startfile_spec
);
2339 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2340 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2341 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2342 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2346 else if (! strcmp (argv
[i
], "-dumpversion"))
2348 printf ("%s\n", version_string
);
2351 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2352 print_file_name
= "libgcc.a";
2353 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2354 print_file_name
= argv
[i
] + 17;
2355 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2356 print_prog_name
= argv
[i
] + 17;
2357 else if (! strcmp (argv
[i
], "-Xlinker"))
2359 /* Pass the argument of this option to the linker when we link. */
2362 fatal ("argument to `-Xlinker' is missing");
2365 if (!linker_options
)
2367 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2370 = (char **) xrealloc (linker_options
,
2371 n_linker_options
* sizeof (char **));
2373 linker_options
[n_linker_options
- 1] = argv
[++i
];
2375 else if (! strncmp (argv
[i
], "-Wl,", 4))
2378 /* Pass the rest of this option to the linker when we link. */
2381 if (!linker_options
)
2383 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2386 = (char **) xrealloc (linker_options
,
2387 n_linker_options
* sizeof (char **));
2389 /* Split the argument at commas. */
2391 for (j
= 4; argv
[i
][j
]; j
++)
2392 if (argv
[i
][j
] == ',')
2394 linker_options
[n_linker_options
- 1]
2395 = save_string (argv
[i
] + prev
, j
- prev
);
2398 = (char **) xrealloc (linker_options
,
2399 n_linker_options
* sizeof (char **));
2402 /* Record the part after the last comma. */
2403 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2405 else if (! strncmp (argv
[i
], "-Wa,", 4))
2408 /* Pass the rest of this option to the assembler. */
2410 n_assembler_options
++;
2411 if (!assembler_options
)
2413 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2416 = (char **) xrealloc (assembler_options
,
2417 n_assembler_options
* sizeof (char **));
2419 /* Split the argument at commas. */
2421 for (j
= 4; argv
[i
][j
]; j
++)
2422 if (argv
[i
][j
] == ',')
2424 assembler_options
[n_assembler_options
- 1]
2425 = save_string (argv
[i
] + prev
, j
- prev
);
2426 n_assembler_options
++;
2428 = (char **) xrealloc (assembler_options
,
2429 n_assembler_options
* sizeof (char **));
2432 /* Record the part after the last comma. */
2433 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2435 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2436 /* The +e options to the C++ front-end. */
2438 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2440 register char *p
= &argv
[i
][1];
2441 register int c
= *p
;
2446 if (p
[1] == 0 && i
+ 1 == argc
)
2447 fatal ("argument to `-b' is missing");
2449 spec_machine
= argv
[++i
];
2451 spec_machine
= p
+ 1;
2456 int *temp
= (int *) xmalloc (sizeof (int));
2458 if (p
[1] == 0 && i
+ 1 == argc
)
2459 fatal ("argument to `-B' is missing");
2464 add_prefix (&exec_prefix
, value
, 1, 0, temp
);
2465 add_prefix (&startfile_prefix
, value
, 1, 0, temp
);
2466 add_prefix (&include_prefix
, concat (value
, "include", ""),
2469 /* As a kludge, if the arg is "[foo/]stageN/", just add
2470 "[foo/]stageN/../include" to the include prefix. */
2472 int len
= strlen (value
);
2473 if ((len
== 7 || (len
> 7 && value
[len
- 8] == '/'))
2474 && strncmp (value
+ len
- 7, "stage", 5) == 0
2475 && isdigit (value
[len
- 2])
2476 && value
[len
- 1] == '/')
2477 add_prefix (&include_prefix
,
2478 concat (value
, "../include", ""), 1, 0, 0);
2483 case 'v': /* Print our subcommands and print versions. */
2485 /* If they do anything other than exactly `-v', don't set
2486 verbose_flag; rather, continue on to give the error. */
2493 if (p
[1] == 0 && i
+ 1 == argc
)
2494 fatal ("argument to `-V' is missing");
2496 spec_version
= argv
[++i
];
2498 spec_version
= p
+ 1;
2499 compiler_version
= spec_version
;
2503 if (!strcmp (p
, "save-temps"))
2505 save_temps_flag
= 1;
2512 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2513 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2514 else if (WORD_SWITCH_TAKES_ARG (p
))
2515 i
+= WORD_SWITCH_TAKES_ARG (p
);
2522 /* Set up the search paths before we go looking for config files. */
2524 /* These come before the md prefixes so that we will find gcc's subcommands
2525 (such as cpp) rather than those of the host system. */
2526 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2527 as well as trying the machine and the version. */
2528 add_prefix (&exec_prefix
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2529 add_prefix (&exec_prefix
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2531 add_prefix (&startfile_prefix
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2532 add_prefix (&startfile_prefix
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2534 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
, "/");
2536 /* If tooldir is relative, base it on exec_prefix. A relative
2537 tooldir lets us move the installed tree as a unit.
2539 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2540 directories, so that we can search both the user specified directory
2541 and the standard place. */
2543 if (*tooldir_prefix
!= '/')
2545 if (gcc_exec_prefix
)
2547 char *gcc_exec_tooldir_prefix
2548 = concat (concat (gcc_exec_prefix
, spec_machine
, "/"),
2549 concat (spec_version
, "/", tooldir_prefix
),
2552 add_prefix (&exec_prefix
, concat (gcc_exec_tooldir_prefix
, "bin", "/"),
2554 add_prefix (&startfile_prefix
, concat (gcc_exec_tooldir_prefix
, "lib", "/"),
2558 tooldir_prefix
= concat (concat (standard_exec_prefix
, spec_machine
, "/"),
2559 concat (spec_version
, "/", tooldir_prefix
),
2563 add_prefix (&exec_prefix
, concat (tooldir_prefix
, "bin", "/"),
2565 add_prefix (&startfile_prefix
, concat (tooldir_prefix
, "lib", "/"),
2568 /* More prefixes are enabled in main, after we read the specs file
2569 and determine whether this is cross-compilation or not. */
2572 /* Then create the space for the vectors and scan again. */
2574 switches
= ((struct switchstr
*)
2575 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2576 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2579 last_language_n_infiles
= -1;
2581 /* This, time, copy the text of each switch and store a pointer
2582 to the copy in the vector of switches.
2583 Store all the infiles in their vector. */
2585 for (i
= 1; i
< argc
; i
++)
2587 /* Just skip the switches that were handled by the preceding loop. */
2588 if (!strcmp (argv
[i
], "-Xlinker"))
2590 else if (! strncmp (argv
[i
], "-Wl,", 4))
2592 else if (! strncmp (argv
[i
], "-Wa,", 4))
2594 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2596 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2598 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2600 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2602 /* Compensate for the +e options to the C++ front-end;
2603 they're there simply for cfront call-compatibility. We do
2604 some magic in default_compilers to pass them down properly.
2605 Note we deliberately start at the `+' here, to avoid passing
2606 -e0 or -e1 down into the linker. */
2607 switches
[n_switches
].part1
= &argv
[i
][0];
2608 switches
[n_switches
].args
= 0;
2609 switches
[n_switches
].live_cond
= 0;
2610 switches
[n_switches
].valid
= 0;
2613 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2615 register char *p
= &argv
[i
][1];
2616 register int c
= *p
;
2618 if (c
== 'B' || c
== 'b' || c
== 'V')
2620 /* Skip a separate arg, if any. */
2627 if (p
[1] == 0 && i
+ 1 == argc
)
2628 fatal ("argument to `-x' is missing");
2630 spec_lang
= argv
[++i
];
2633 if (! strcmp (spec_lang
, "none"))
2634 /* Suppress the warning if -xnone comes after the last input file,
2635 because alternate command interfaces like g++ might find it
2636 useful to place -xnone after each input file. */
2639 last_language_n_infiles
= n_infiles
;
2642 switches
[n_switches
].part1
= p
;
2643 /* Deal with option arguments in separate argv elements. */
2644 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2645 || WORD_SWITCH_TAKES_ARG (p
))
2648 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2652 /* Count only the option arguments in separate argv elements. */
2653 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2655 if (i
+ n_args
>= argc
)
2656 fatal ("argument to `-%s' is missing", p
);
2657 switches
[n_switches
].args
2658 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2660 switches
[n_switches
].args
[j
++] = argv
[++i
];
2661 /* Null-terminate the vector. */
2662 switches
[n_switches
].args
[j
] = 0;
2664 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2666 /* On some systems, ld cannot handle -o or -L without space.
2667 So split the -o or -L from its argument. */
2668 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2669 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2670 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2671 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2672 switches
[n_switches
].args
[1] = 0;
2675 switches
[n_switches
].args
= 0;
2677 switches
[n_switches
].live_cond
= 0;
2678 switches
[n_switches
].valid
= 0;
2679 /* This is always valid, since gcc.c itself understands it. */
2680 if (!strcmp (p
, "save-temps"))
2681 switches
[n_switches
].valid
= 1;
2686 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2687 && strcmp (argv
[i
], "-")
2688 && access (argv
[i
], R_OK
) < 0)
2690 perror_with_name (argv
[i
]);
2695 infiles
[n_infiles
].language
= spec_lang
;
2696 infiles
[n_infiles
++].name
= argv
[i
];
2701 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2702 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2704 switches
[n_switches
].part1
= 0;
2705 infiles
[n_infiles
].name
= 0;
2707 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2708 if (gcc_exec_prefix
)
2710 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2711 + strlen (spec_machine
) + 3);
2712 strcpy (temp
, gcc_exec_prefix
);
2713 strcat (temp
, spec_machine
);
2715 strcat (temp
, spec_version
);
2717 gcc_exec_prefix
= temp
;
2721 /* Process a spec string, accumulating and running commands. */
2723 /* These variables describe the input file name.
2724 input_file_number is the index on outfiles of this file,
2725 so that the output file name can be stored for later use by %o.
2726 input_basename is the start of the part of the input file
2727 sans all directory names, and basename_length is the number
2728 of characters starting there excluding the suffix .c or whatever. */
2730 static char *input_filename
;
2731 static int input_file_number
;
2732 static int input_filename_length
;
2733 static int basename_length
;
2734 static char *input_basename
;
2735 static char *input_suffix
;
2737 /* These are variables used within do_spec and do_spec_1. */
2739 /* Nonzero if an arg has been started and not yet terminated
2740 (with space, tab or newline). */
2741 static int arg_going
;
2743 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2744 is a temporary file name. */
2745 static int delete_this_arg
;
2747 /* Nonzero means %w has been seen; the next arg to be terminated
2748 is the output file name of this compilation. */
2749 static int this_is_output_file
;
2751 /* Nonzero means %s has been seen; the next arg to be terminated
2752 is the name of a library file and we should try the standard
2753 search dirs for it. */
2754 static int this_is_library_file
;
2756 /* Nonzero means that the input of this command is coming from a pipe. */
2757 static int input_from_pipe
;
2759 /* Process the spec SPEC and run the commands specified therein.
2760 Returns 0 if the spec is successfully processed; -1 if failed. */
2770 delete_this_arg
= 0;
2771 this_is_output_file
= 0;
2772 this_is_library_file
= 0;
2773 input_from_pipe
= 0;
2775 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2777 /* Force out any unfinished command.
2778 If -pipe, this forces out the last command if it ended in `|'. */
2781 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2784 if (argbuf_index
> 0)
2791 /* Process the sub-spec SPEC as a portion of a larger spec.
2792 This is like processing a whole spec except that we do
2793 not initialize at the beginning and we do not supply a
2794 newline by default at the end.
2795 INSWITCH nonzero means don't process %-sequences in SPEC;
2796 in this case, % is treated as an ordinary character.
2797 This is used while substituting switches.
2798 INSWITCH nonzero also causes SPC not to terminate an argument.
2800 Value is zero unless a line was finished
2801 and the command on that line reported an error. */
2804 do_spec_1 (spec
, inswitch
, soft_matched_part
)
2807 char *soft_matched_part
;
2809 register char *p
= spec
;
2816 /* If substituting a switch, treat all chars like letters.
2817 Otherwise, NL, SPC, TAB and % are special. */
2818 switch (inswitch
? 'a' : c
)
2821 /* End of line: finish any pending argument,
2822 then run the pending command if one has been started. */
2825 obstack_1grow (&obstack
, 0);
2826 string
= obstack_finish (&obstack
);
2827 if (this_is_library_file
)
2828 string
= find_file (string
);
2829 store_arg (string
, delete_this_arg
, this_is_output_file
);
2830 if (this_is_output_file
)
2831 outfiles
[input_file_number
] = string
;
2835 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2838 for (i
= 0; i
< n_switches
; i
++)
2839 if (!strcmp (switches
[i
].part1
, "pipe"))
2842 /* A `|' before the newline means use a pipe here,
2843 but only if -pipe was specified.
2844 Otherwise, execute now and don't pass the `|' as an arg. */
2847 input_from_pipe
= 1;
2848 switches
[i
].valid
= 1;
2855 if (argbuf_index
> 0)
2861 /* Reinitialize for a new command, and for a new argument. */
2864 delete_this_arg
= 0;
2865 this_is_output_file
= 0;
2866 this_is_library_file
= 0;
2867 input_from_pipe
= 0;
2871 /* End any pending argument. */
2874 obstack_1grow (&obstack
, 0);
2875 string
= obstack_finish (&obstack
);
2876 if (this_is_library_file
)
2877 string
= find_file (string
);
2878 store_arg (string
, delete_this_arg
, this_is_output_file
);
2879 if (this_is_output_file
)
2880 outfiles
[input_file_number
] = string
;
2884 obstack_1grow (&obstack
, c
);
2890 /* Space or tab ends an argument if one is pending. */
2893 obstack_1grow (&obstack
, 0);
2894 string
= obstack_finish (&obstack
);
2895 if (this_is_library_file
)
2896 string
= find_file (string
);
2897 store_arg (string
, delete_this_arg
, this_is_output_file
);
2898 if (this_is_output_file
)
2899 outfiles
[input_file_number
] = string
;
2901 /* Reinitialize for a new argument. */
2903 delete_this_arg
= 0;
2904 this_is_output_file
= 0;
2905 this_is_library_file
= 0;
2912 fatal ("Invalid specification! Bug in cc.");
2915 obstack_grow (&obstack
, input_basename
, basename_length
);
2920 delete_this_arg
= 2;
2923 /* Dump out the directories specified with LIBRARY_PATH,
2924 followed by the absolute directories
2925 that we search for startfiles. */
2928 struct prefix_list
*pl
= startfile_prefix
.plist
;
2930 char *buffer
= (char *) xmalloc (bufsize
);
2933 for (; pl
; pl
= pl
->next
)
2935 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2936 /* Used on systems which record the specified -L dirs
2937 and use them to search for dynamic linking. */
2938 /* Relative directories always come from -B,
2939 and it is better not to use them for searching
2940 at run time. In particular, stage1 loses */
2941 if (pl
->prefix
[0] != '/')
2946 if (is_directory (pl
->prefix
, machine_suffix
, 1))
2948 do_spec_1 ("-L", 0, NULL_PTR
);
2949 #ifdef SPACE_AFTER_L_OPTION
2950 do_spec_1 (" ", 0, NULL_PTR
);
2952 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
2953 /* Remove slash from machine_suffix. */
2954 if (strlen (machine_suffix
) >= bufsize
)
2955 bufsize
= strlen (machine_suffix
) * 2 + 1;
2956 buffer
= (char *) xrealloc (buffer
, bufsize
);
2957 strcpy (buffer
, machine_suffix
);
2958 idx
= strlen (buffer
);
2959 if (buffer
[idx
- 1] == '/')
2960 buffer
[idx
- 1] = 0;
2961 do_spec_1 (buffer
, 1, NULL_PTR
);
2962 /* Make this a separate argument. */
2963 do_spec_1 (" ", 0, NULL_PTR
);
2966 if (!pl
->require_machine_suffix
)
2968 if (is_directory (pl
->prefix
, "", 1))
2970 do_spec_1 ("-L", 0, NULL_PTR
);
2971 #ifdef SPACE_AFTER_L_OPTION
2972 do_spec_1 (" ", 0, NULL_PTR
);
2974 /* Remove slash from pl->prefix. */
2975 if (strlen (pl
->prefix
) >= bufsize
)
2976 bufsize
= strlen (pl
->prefix
) * 2 + 1;
2977 buffer
= (char *) xrealloc (buffer
, bufsize
);
2978 strcpy (buffer
, pl
->prefix
);
2979 idx
= strlen (buffer
);
2980 if (buffer
[idx
- 1] == '/')
2981 buffer
[idx
- 1] = 0;
2982 do_spec_1 (buffer
, 1, NULL_PTR
);
2983 /* Make this a separate argument. */
2984 do_spec_1 (" ", 0, NULL_PTR
);
2993 /* {...:%efoo} means report an error with `foo' as error message
2994 and don't execute any more commands for this file. */
2998 while (*p
!= 0 && *p
!= '\n') p
++;
2999 buf
= (char *) alloca (p
- q
+ 1);
3000 strncpy (buf
, q
, p
- q
);
3010 if (save_temps_flag
)
3012 obstack_grow (&obstack
, input_basename
, basename_length
);
3013 delete_this_arg
= 0;
3017 #ifdef MKTEMP_EACH_FILE
3018 /* ??? This has a problem: the total number of
3019 values mktemp can return is limited.
3020 That matters for the names of object files.
3021 In 2.4, do something about that. */
3022 struct temp_name
*t
;
3024 while (*p
== '.' || isalpha (*p
))
3027 /* See if we already have an association of %g/%u/%U and
3029 for (t
= temp_names
; t
; t
= t
->next
)
3030 if (t
->length
== p
- suffix
3031 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3032 && t
->unique
== (c
!= 'g'))
3035 /* Make a new association if needed. %u requires one. */
3036 if (t
== 0 || c
== 'u')
3040 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3041 t
->next
= temp_names
;
3044 t
->length
= p
- suffix
;
3045 t
->suffix
= save_string (suffix
, p
- suffix
);
3046 t
->unique
= (c
!= 'g');
3047 choose_temp_base ();
3048 t
->filename
= temp_filename
;
3049 t
->filename_length
= temp_filename_length
;
3052 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3053 delete_this_arg
= 1;
3055 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3056 if (c
== 'u' || c
== 'U')
3062 sprintf (buff
, "%d", unique
);
3063 obstack_grow (&obstack
, buff
, strlen (buff
));
3066 delete_this_arg
= 1;
3072 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3078 struct prefix_list
*pl
= include_prefix
.plist
;
3080 if (gcc_exec_prefix
)
3082 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3083 /* Make this a separate argument. */
3084 do_spec_1 (" ", 0, NULL_PTR
);
3085 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3086 do_spec_1 (" ", 0, NULL_PTR
);
3089 for (; pl
; pl
= pl
->next
)
3091 do_spec_1 ("-isystem", 1, NULL_PTR
);
3092 /* Make this a separate argument. */
3093 do_spec_1 (" ", 0, NULL_PTR
);
3094 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3095 do_spec_1 (" ", 0, NULL_PTR
);
3103 for (f
= 0; f
< n_infiles
; f
++)
3104 store_arg (outfiles
[f
], 0, 0);
3109 this_is_library_file
= 1;
3113 this_is_output_file
= 1;
3118 int index
= argbuf_index
;
3119 /* Handle the {...} following the %W. */
3122 p
= handle_braces (p
+ 1);
3125 /* If any args were output, mark the last one for deletion
3127 if (argbuf_index
!= index
)
3128 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3132 /* %x{OPTION} records OPTION for %X to output. */
3138 /* Skip past the option value and make a copy. */
3143 string
= save_string (p1
+ 1, p
- p1
- 2);
3145 /* See if we already recorded this option. */
3146 for (i
= 0; i
< n_linker_options
; i
++)
3147 if (! strcmp (string
, linker_options
[i
]))
3153 /* This option is new; add it. */
3155 if (!linker_options
)
3157 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3160 = (char **) xrealloc (linker_options
,
3161 n_linker_options
* sizeof (char **));
3163 linker_options
[n_linker_options
- 1] = string
;
3167 /* Dump out the options accumulated previously using %x,
3168 -Xlinker and -Wl,. */
3170 for (i
= 0; i
< n_linker_options
; i
++)
3172 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3173 /* Make each accumulated option a separate argument. */
3174 do_spec_1 (" ", 0, NULL_PTR
);
3178 /* Dump out the options accumulated previously using -Wa,. */
3180 for (i
= 0; i
< n_assembler_options
; i
++)
3182 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3183 /* Make each accumulated option a separate argument. */
3184 do_spec_1 (" ", 0, NULL_PTR
);
3188 /* Here are digits and numbers that just process
3189 a certain constant string as a spec. */
3192 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3198 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3204 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3210 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3216 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3222 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3228 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3234 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3240 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3247 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3251 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3255 if (! strncmp (y
, "-D", 2))
3256 /* Copy the whole option. */
3257 while (*y
&& *y
!= ' ' && *y
!= '\t')
3259 else if (*y
== ' ' || *y
== '\t')
3260 /* Copy whitespace to the result. */
3262 /* Don't copy other options. */
3269 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3277 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3281 /* Copy all of CPP_PREDEFINES into BUF,
3282 but put __ after every -D and at the end of each arg. */
3286 if (! strncmp (y
, "-D", 2))
3293 if (strncmp (y
, "__", 2))
3295 /* Stick __ at front of macro name. */
3298 /* Arrange to stick __ at the end as well. */
3302 /* Copy the macro name. */
3303 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3312 /* Copy the value given, if any. */
3313 while (*y
&& *y
!= ' ' && *y
!= '\t')
3316 else if (*y
== ' ' || *y
== '\t')
3317 /* Copy whitespace to the result. */
3319 /* Don't copy -A options */
3325 /* Copy all of CPP_PREDEFINES into BUF,
3326 but put __ after every -D. */
3330 if (! strncmp (y
, "-D", 2))
3334 if (strncmp (y
, "__", 2))
3336 /* Stick -D__ at front of macro name. */
3342 /* Copy the macro name. */
3343 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3346 /* Copy the value given, if any. */
3347 while (*y
&& *y
!= ' ' && *y
!= '\t')
3352 /* Do not copy this macro - we have just done it before */
3353 while (*y
&& *y
!= ' ' && *y
!= '\t')
3357 else if (*y
== ' ' || *y
== '\t')
3358 /* Copy whitespace to the result. */
3360 /* Don't copy -A options */
3366 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3370 if (! strncmp (y
, "-A", 2))
3371 /* Copy the whole option. */
3372 while (*y
&& *y
!= ' ' && *y
!= '\t')
3374 else if (*y
== ' ' || *y
== '\t')
3375 /* Copy whitespace to the result. */
3377 /* Don't copy other options. */
3384 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3391 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3396 /* Here we define characters other than letters and digits. */
3399 p
= handle_braces (p
);
3405 obstack_1grow (&obstack
, '%');
3409 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3410 do_spec_1 (" ", 0, NULL_PTR
);
3413 /* Process a string found as the value of a spec given by name.
3414 This feature allows individual machine descriptions
3415 to add and use their own specs.
3416 %[...] modifies -D options the way %P does;
3417 %(...) uses the spec unmodified. */
3422 struct spec_list
*sl
;
3425 /* The string after the S/P is the name of a spec that is to be
3427 while (*p
&& *p
!= ')' && *p
!= ']')
3430 /* See if it's in the list */
3431 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3432 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3442 value
= do_spec_1 (name
, 0, NULL_PTR
);
3448 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3452 /* Copy all of NAME into BUF, but put __ after
3453 every -D and at the end of each arg, */
3456 if (! strncmp (y
, "-D", 2))
3464 else if (*y
== ' ' || *y
== 0)
3478 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3484 /* Discard the closing paren or bracket. */
3492 int c1
= *p
++; /* Select first or second version number. */
3493 char *v
= compiler_version
;
3495 /* If desired, advance to second version number. */
3498 /* Set P after the first period. */
3499 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3504 /* Set Q at the next period or at the end. */
3506 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3508 /* Empty string means zero. */
3514 /* Put that part into the command. */
3515 obstack_grow (&obstack
, v
, q
- v
);
3521 if (input_from_pipe
)
3522 do_spec_1 ("-", 0, NULL_PTR
);
3531 /* Backslash: treat next character as ordinary. */
3536 /* Ordinary character: put it into the current argument. */
3537 obstack_1grow (&obstack
, c
);
3541 return 0; /* End of string */
3544 /* Return 0 if we call do_spec_1 and that returns -1. */
3557 /* A `|' after the open-brace means,
3558 if the test fails, output a single minus sign rather than nothing.
3559 This is used in %{|!pipe:...}. */
3563 /* A `!' after the open-brace negates the condition:
3564 succeed if the specified switch is not present. */
3568 /* A `.' after the open-brace means test against the current suffix. */
3578 while (*p
!= ':' && *p
!= '}') p
++;
3581 register int count
= 1;
3599 int found
= (input_suffix
!= 0
3600 && strlen (input_suffix
) == p
- filter
3601 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3607 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3612 else if (p
[-1] == '*' && p
[0] == '}')
3614 /* Substitute all matching switches as separate args. */
3617 for (i
= 0; i
< n_switches
; i
++)
3618 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3619 && check_live_switch (i
, p
- filter
))
3624 /* Test for presence of the specified switch. */
3628 /* If name specified ends in *, as in {x*:...},
3629 check for %* and handle that case. */
3630 if (p
[-1] == '*' && !negate
)
3635 /* First see whether we have %*. */
3639 if (*r
== '%' && r
[1] == '*')
3643 /* If we do, handle that case. */
3646 /* Substitute all matching switches as separate args.
3647 But do this by substituting for %*
3648 in the text that follows the colon. */
3650 unsigned hard_match_len
= p
- filter
- 1;
3651 char *string
= save_string (p
+ 1, q
- p
- 2);
3653 for (i
= 0; i
< n_switches
; i
++)
3654 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3655 && check_live_switch (i
, -1))
3657 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3658 /* Pass any arguments this switch has. */
3666 /* If name specified ends in *, as in {x*:...},
3667 check for presence of any switch name starting with x. */
3670 for (i
= 0; i
< n_switches
; i
++)
3672 unsigned hard_match_len
= p
- filter
- 1;
3674 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3675 && check_live_switch (i
, hard_match_len
))
3681 /* Otherwise, check for presence of exact name specified. */
3684 for (i
= 0; i
< n_switches
; i
++)
3686 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3687 && switches
[i
].part1
[p
- filter
] == 0
3688 && check_live_switch (i
, -1))
3696 /* If it is as desired (present for %{s...}, absent for %{-s...})
3697 then substitute either the switch or the specified
3698 conditional text. */
3699 if (present
!= negate
)
3707 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3713 /* Here if a %{|...} conditional fails: output a minus sign,
3714 which means "standard output" or "standard input". */
3715 do_spec_1 ("-", 0, NULL_PTR
);
3722 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3723 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3724 spec, or -1 if either exact match or %* is used.
3726 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3727 whose value does not begin with "no-" is obsoleted by the same value
3728 with the "no-", similarly for a switch with the "no-" prefix. */
3731 check_live_switch (switchnum
, prefix_length
)
3735 char *name
= switches
[switchnum
].part1
;
3738 /* In the common case of {<at-most-one-letter>*}, a negating
3739 switch would always match, so ignore that case. We will just
3740 send the conflicting switches to the compiler phase. */
3741 if (prefix_length
>= 0 && prefix_length
<= 1)
3744 /* If we already processed this switch and determined if it was
3745 live or not, return our past determination. */
3746 if (switches
[switchnum
].live_cond
!= 0)
3747 return switches
[switchnum
].live_cond
> 0;
3749 /* Now search for duplicate in a manner that depends on the name. */
3753 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3754 if (switches
[i
].part1
[0] == 'O')
3756 switches
[switchnum
].valid
= 1;
3757 switches
[switchnum
].live_cond
= -1;
3762 case 'W': case 'f': case 'm':
3763 if (! strncmp (name
+ 1, "no-", 3))
3765 /* We have Xno-YYY, search for XYYY. */
3766 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3767 if (switches
[i
].part1
[0] == name
[0]
3768 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
3770 switches
[switchnum
].valid
= 1;
3771 switches
[switchnum
].live_cond
= -1;
3777 /* We have XYYY, search for Xno-YYY. */
3778 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3779 if (switches
[i
].part1
[0] == name
[0]
3780 && switches
[i
].part1
[1] == 'n'
3781 && switches
[i
].part1
[2] == 'o'
3782 && switches
[i
].part1
[3] == '-'
3783 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
3785 switches
[switchnum
].valid
= 1;
3786 switches
[switchnum
].live_cond
= -1;
3793 /* Otherwise the switch is live. */
3794 switches
[switchnum
].live_cond
= 1;
3798 /* Pass a switch to the current accumulating command
3799 in the same form that we received it.
3800 SWITCHNUM identifies the switch; it is an index into
3801 the vector of switches gcc received, which is `switches'.
3802 This cannot fail since it never finishes a command line.
3804 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3807 give_switch (switchnum
, omit_first_word
)
3809 int omit_first_word
;
3811 if (!omit_first_word
)
3813 do_spec_1 ("-", 0, NULL_PTR
);
3814 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
3816 do_spec_1 (" ", 0, NULL_PTR
);
3817 if (switches
[switchnum
].args
!= 0)
3820 for (p
= switches
[switchnum
].args
; *p
; p
++)
3822 do_spec_1 (*p
, 1, NULL_PTR
);
3823 do_spec_1 (" ", 0, NULL_PTR
);
3826 switches
[switchnum
].valid
= 1;
3829 /* Search for a file named NAME trying various prefixes including the
3830 user's -B prefix and some standard ones.
3831 Return the absolute file name found. If nothing is found, return NAME. */
3839 newname
= find_a_file (&startfile_prefix
, name
, R_OK
);
3840 return newname
? newname
: name
;
3843 /* Determine whether a directory exists. If LINKER, return 0 for
3844 certain fixed names not needed by the linker. If not LINKER, it is
3845 only important to return 0 if the host machine has a small ARG_MAX
3849 is_directory (path1
, path2
, linker
)
3854 int len1
= strlen (path1
);
3855 int len2
= strlen (path2
);
3856 char *path
= (char *) alloca (3 + len1
+ len2
);
3860 #ifndef SMALL_ARG_MAX
3865 /* Construct the path from the two parts. Ensure the string ends with "/.".
3866 The resulting path will be a directory even if the given path is a
3868 bcopy (path1
, path
, len1
);
3869 bcopy (path2
, path
+ len1
, len2
);
3870 cp
= path
+ len1
+ len2
;
3876 /* Exclude directories that the linker is known to search. */
3878 && ((cp
- path
== 6 && strcmp (path
, "/lib/.") == 0)
3879 || (cp
- path
== 10 && strcmp (path
, "/usr/lib/.") == 0)))
3882 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
3885 /* On fatal signals, delete all the temporary files. */
3888 fatal_error (signum
)
3891 signal (signum
, SIG_DFL
);
3892 delete_failure_queue ();
3893 delete_temp_files ();
3894 /* Get the same signal again, this time not handled,
3895 so its normal effect occurs. */
3896 kill (getpid (), signum
);
3907 int linker_was_run
= 0;
3908 char *explicit_link_files
;
3912 p
= argv
[0] + strlen (argv
[0]);
3913 while (p
!= argv
[0] && p
[-1] != '/') --p
;
3916 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
3917 signal (SIGINT
, fatal_error
);
3919 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
3920 signal (SIGHUP
, fatal_error
);
3922 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
3923 signal (SIGTERM
, fatal_error
);
3925 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
3926 signal (SIGPIPE
, fatal_error
);
3930 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
3932 obstack_init (&obstack
);
3934 /* Set up to remember the pathname of gcc and any options
3935 needed for collect. We use argv[0] instead of programname because
3936 we need the complete pathname. */
3937 obstack_init (&collect_obstack
);
3938 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
3939 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
3940 putenv (obstack_finish (&collect_obstack
));
3942 /* Choose directory for temp files. */
3944 choose_temp_base ();
3946 /* Make a table of what switches there are (switches, n_switches).
3947 Make a table of specified input files (infiles, n_infiles).
3948 Decode switches that are handled locally. */
3950 process_command (argc
, argv
);
3952 /* Initialize the vector of specs to just the default.
3953 This means one element containing 0s, as a terminator. */
3955 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
3956 bcopy ((char *) default_compilers
, (char *) compilers
,
3957 sizeof default_compilers
);
3958 n_compilers
= n_default_compilers
;
3960 /* Read specs from a file if there is one. */
3962 machine_suffix
= concat (spec_machine
, "/", concat (spec_version
, "/", ""));
3963 just_machine_suffix
= concat (spec_machine
, "/", "");
3965 specs_file
= find_a_file (&startfile_prefix
, "specs", R_OK
);
3966 /* Read the specs file unless it is a default one. */
3967 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
3968 read_specs (specs_file
);
3970 /* If not cross-compiling, look for startfiles in the standard places. */
3971 /* The fact that these are done here, after reading the specs file,
3972 means that it cannot be found in these directories.
3973 But that's okay. It should never be there anyway. */
3976 #ifdef MD_EXEC_PREFIX
3977 add_prefix (&exec_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3978 add_prefix (&startfile_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
3981 #ifdef MD_STARTFILE_PREFIX
3982 add_prefix (&startfile_prefix
, md_startfile_prefix
, 0, 0, NULL_PTR
);
3985 #ifdef MD_STARTFILE_PREFIX_1
3986 add_prefix (&startfile_prefix
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
3989 /* If standard_startfile_prefix is relative, base it on
3990 standard_exec_prefix. This lets us move the installed tree
3991 as a unit. If GCC_EXEC_PREFIX is defined, base
3992 standard_startfile_prefix on that as well. */
3993 if (*standard_startfile_prefix
== '/')
3994 add_prefix (&startfile_prefix
, standard_startfile_prefix
, 0, 0,
3998 if (gcc_exec_prefix
)
3999 add_prefix (&startfile_prefix
,
4000 concat (gcc_exec_prefix
,
4001 standard_startfile_prefix
,
4004 add_prefix (&startfile_prefix
,
4005 concat (standard_exec_prefix
,
4007 standard_startfile_prefix
),
4011 add_prefix (&startfile_prefix
, standard_startfile_prefix_1
, 0, 0,
4013 add_prefix (&startfile_prefix
, standard_startfile_prefix_2
, 0, 0,
4015 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4016 add_prefix (&startfile_prefix
, "./", 0, 1, NULL_PTR
);
4020 /* Now we have the specs.
4021 Set the `valid' bits for switches that match anything in any spec. */
4023 validate_all_switches ();
4025 /* Warn about any switches that no pass was interested in. */
4027 for (i
= 0; i
< n_switches
; i
++)
4028 if (! switches
[i
].valid
)
4029 error ("unrecognized option `-%s'", switches
[i
].part1
);
4031 /* Obey some of the options. */
4033 if (print_file_name
)
4035 printf ("%s\n", find_file (print_file_name
));
4039 if (print_prog_name
)
4041 char *newname
= find_a_file (&exec_prefix
, print_prog_name
, X_OK
);
4042 printf ("%s\n", (newname
? newname
: print_prog_name
));
4048 fprintf (stderr
, "gcc version %s\n", version_string
);
4054 fatal ("No input files");
4056 /* Make a place to record the compiler output file names
4057 that correspond to the input files. */
4059 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4060 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4062 /* Record which files were specified explicitly as link input. */
4064 explicit_link_files
= xmalloc (n_infiles
);
4065 bzero (explicit_link_files
, n_infiles
);
4067 for (i
= 0; i
< n_infiles
; i
++)
4069 register struct compiler
*cp
= 0;
4070 int this_file_error
= 0;
4072 /* Tell do_spec what to substitute for %i. */
4074 input_filename
= infiles
[i
].name
;
4075 input_filename_length
= strlen (input_filename
);
4076 input_file_number
= i
;
4078 /* Use the same thing in %o, unless cp->spec says otherwise. */
4080 outfiles
[i
] = input_filename
;
4082 /* Figure out which compiler from the file's suffix. */
4084 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4085 infiles
[i
].language
);
4089 /* Ok, we found an applicable compiler. Run its spec. */
4090 /* First say how much of input_filename to substitute for %b */
4094 input_basename
= input_filename
;
4095 for (p
= input_filename
; *p
; p
++)
4097 input_basename
= p
+ 1;
4099 /* Find a suffix starting with the last period,
4100 and set basename_length to exclude that suffix. */
4101 basename_length
= strlen (input_basename
);
4102 p
= input_basename
+ basename_length
;
4103 while (p
!= input_basename
&& *p
!= '.') --p
;
4104 if (*p
== '.' && p
!= input_basename
)
4106 basename_length
= p
- input_basename
;
4107 input_suffix
= p
+ 1;
4113 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4115 len
+= strlen (cp
->spec
[j
]);
4117 p
= (char *) xmalloc (len
+ 1);
4120 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4123 strcpy (p
+ len
, cp
->spec
[j
]);
4124 len
+= strlen (cp
->spec
[j
]);
4127 value
= do_spec (p
);
4130 this_file_error
= 1;
4133 /* If this file's name does not contain a recognized suffix,
4134 record it as explicit linker input. */
4137 explicit_link_files
[i
] = 1;
4139 /* Clear the delete-on-failure queue, deleting the files in it
4140 if this compilation failed. */
4142 if (this_file_error
)
4144 delete_failure_queue ();
4147 /* If this compilation succeeded, don't delete those files later. */
4148 clear_failure_queue ();
4151 /* Run ld to link all the compiler output files. */
4153 if (error_count
== 0)
4155 int tmp
= execution_count
;
4159 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4161 putenv_from_prefixes (&exec_prefix
, "COMPILER_PATH=");
4162 putenv_from_prefixes (&startfile_prefix
, "LIBRARY_PATH=");
4164 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4166 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4167 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4170 for (i
= 0; i
< n_switches
; i
++)
4174 obstack_grow (&collect_obstack
, " ", 1);
4177 obstack_grow (&collect_obstack
, "-", 1);
4178 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4179 strlen (switches
[i
].part1
));
4181 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4183 obstack_grow (&collect_obstack
, " ", 1);
4184 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4187 obstack_grow (&collect_obstack
, "\0", 1);
4188 putenv (obstack_finish (&collect_obstack
));
4190 value
= do_spec (link_command_spec
);
4193 linker_was_run
= (tmp
!= execution_count
);
4196 /* Warn if a -B option was specified but the prefix was never used. */
4197 unused_prefix_warnings (&exec_prefix
);
4198 unused_prefix_warnings (&startfile_prefix
);
4200 /* If options said don't run linker,
4201 complain about input files to be given to the linker. */
4203 if (! linker_was_run
&& error_count
== 0)
4204 for (i
= 0; i
< n_infiles
; i
++)
4205 if (explicit_link_files
[i
])
4206 error ("%s: linker input file unused since linking not done",
4209 /* Delete some or all of the temporary files we made. */
4212 delete_failure_queue ();
4213 delete_temp_files ();
4215 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4220 /* Find the proper compilation spec for the file name NAME,
4221 whose length is LENGTH. LANGUAGE is the specified language,
4222 or 0 if none specified. */
4224 static struct compiler
*
4225 lookup_compiler (name
, length
, language
)
4230 struct compiler
*cp
;
4232 /* Look for the language, if one is spec'd. */
4235 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4239 if (cp
->suffix
[0] == '@'
4240 && !strcmp (cp
->suffix
+ 1, language
))
4244 error ("language %s not recognized", language
);
4247 /* Look for a suffix. */
4248 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4250 if (/* The suffix `-' matches only the file name `-'. */
4251 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4253 (strlen (cp
->suffix
) < length
4254 /* See if the suffix matches the end of NAME. */
4255 && !strcmp (cp
->suffix
,
4256 name
+ length
- strlen (cp
->suffix
))))
4258 if (cp
->spec
[0][0] == '@')
4260 struct compiler
*new;
4261 /* An alias entry maps a suffix to a language.
4262 Search for the language; pass 0 for NAME and LENGTH
4263 to avoid infinite recursion if language not found.
4264 Construct the new compiler spec. */
4265 language
= cp
->spec
[0] + 1;
4266 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4267 new->suffix
= cp
->suffix
;
4268 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4269 (char *) new->spec
, sizeof new->spec
);
4272 /* A non-alias entry: return it. */
4284 register char *value
= (char *) malloc (size
);
4286 fatal ("virtual memory exhausted");
4291 xrealloc (ptr
, size
)
4295 register char *value
= (char *) realloc (ptr
, size
);
4297 fatal ("virtual memory exhausted");
4301 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4307 int len1
= strlen (s1
), len2
= strlen (s2
), len3
= strlen (s3
);
4308 char *result
= xmalloc (len1
+ len2
+ len3
+ 1);
4310 strcpy (result
, s1
);
4311 strcpy (result
+ len1
, s2
);
4312 strcpy (result
+ len1
+ len2
, s3
);
4313 *(result
+ len1
+ len2
+ len3
) = 0;
4319 save_string (s
, len
)
4323 register char *result
= xmalloc (len
+ 1);
4325 bcopy (s
, result
, len
);
4331 pfatal_with_name (name
)
4336 if (errno
< sys_nerr
)
4337 s
= concat ("%s: ", sys_errlist
[errno
], "");
4339 s
= "cannot open %s";
4344 perror_with_name (name
)
4349 if (errno
< sys_nerr
)
4350 s
= concat ("%s: ", sys_errlist
[errno
], "");
4352 s
= "cannot open %s";
4362 if (errno
< sys_nerr
)
4363 s
= concat ("installation problem, cannot exec %s: ",
4364 sys_errlist
[errno
], "");
4366 s
= "installation problem, cannot exec %s";
4370 /* More 'friendly' abort that prints the line and file.
4371 config.h can #define abort fancy_abort if you like that sort of thing. */
4376 fatal ("Internal gcc abort.");
4381 /* Output an error message and exit */
4384 fatal
VPROTO((char *format
, ...))
4391 VA_START (ap
, format
);
4394 format
= va_arg (ap
, char*);
4397 fprintf (stderr
, "%s: ", programname
);
4398 vfprintf (stderr
, format
, ap
);
4400 fprintf (stderr
, "\n");
4401 delete_temp_files ();
4406 error
VPROTO((char *format
, ...))
4413 VA_START (ap
, format
);
4416 format
= va_arg (ap
, char*);
4419 fprintf (stderr
, "%s: ", programname
);
4420 vfprintf (stderr
, format
, ap
);
4423 fprintf (stderr
, "\n");
4426 #else /* not HAVE_VPRINTF */
4429 fatal (msg
, arg1
, arg2
)
4430 char *msg
, *arg1
, *arg2
;
4432 error (msg
, arg1
, arg2
);
4433 delete_temp_files ();
4438 error (msg
, arg1
, arg2
)
4439 char *msg
, *arg1
, *arg2
;
4441 fprintf (stderr
, "%s: ", programname
);
4442 fprintf (stderr
, msg
, arg1
, arg2
);
4443 fprintf (stderr
, "\n");
4446 #endif /* not HAVE_VPRINTF */
4450 validate_all_switches ()
4452 struct compiler
*comp
;
4455 struct spec_list
*spec
;
4457 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4460 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4464 if (c
== '%' && *p
== '{')
4465 /* We have a switch spec. */
4466 validate_switches (p
+ 1);
4470 /* look through the linked list of extra specs read from the specs file */
4471 for (spec
= specs
; spec
; spec
= spec
->next
)
4475 if (c
== '%' && *p
== '{')
4476 /* We have a switch spec. */
4477 validate_switches (p
+ 1);
4480 p
= link_command_spec
;
4482 if (c
== '%' && *p
== '{')
4483 /* We have a switch spec. */
4484 validate_switches (p
+ 1);
4486 /* Now notice switches mentioned in the machine-specific specs. */
4490 if (c
== '%' && *p
== '{')
4491 /* We have a switch spec. */
4492 validate_switches (p
+ 1);
4496 if (c
== '%' && *p
== '{')
4497 /* We have a switch spec. */
4498 validate_switches (p
+ 1);
4502 if (c
== '%' && *p
== '{')
4503 /* We have a switch spec. */
4504 validate_switches (p
+ 1);
4506 p
= signed_char_spec
;
4508 if (c
== '%' && *p
== '{')
4509 /* We have a switch spec. */
4510 validate_switches (p
+ 1);
4514 if (c
== '%' && *p
== '{')
4515 /* We have a switch spec. */
4516 validate_switches (p
+ 1);
4520 if (c
== '%' && *p
== '{')
4521 /* We have a switch spec. */
4522 validate_switches (p
+ 1);
4526 if (c
== '%' && *p
== '{')
4527 /* We have a switch spec. */
4528 validate_switches (p
+ 1);
4532 if (c
== '%' && *p
== '{')
4533 /* We have a switch spec. */
4534 validate_switches (p
+ 1);
4538 if (c
== '%' && *p
== '{')
4539 /* We have a switch spec. */
4540 validate_switches (p
+ 1);
4543 /* Look at the switch-name that comes after START
4544 and mark as valid all supplied switches that match it. */
4547 validate_switches (start
)
4550 register char *p
= start
;
4565 while (*p
!= ':' && *p
!= '}') p
++;
4569 else if (p
[-1] == '*')
4571 /* Mark all matching switches as valid. */
4573 for (i
= 0; i
< n_switches
; i
++)
4574 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4575 switches
[i
].valid
= 1;
4579 /* Mark an exact matching switch as valid. */
4580 for (i
= 0; i
< n_switches
; i
++)
4582 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4583 && switches
[i
].part1
[p
- filter
] == 0)
4584 switches
[i
].valid
= 1;