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. */
48 /* Include multi-lib information. */
57 /* Add prototype support. */
59 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
60 #define PROTO(ARGS) ARGS
62 #define PROTO(ARGS) ()
68 #define PVPROTO(ARGS) ARGS
69 #define VPROTO(ARGS) ARGS
70 #define VA_START(va_list,var) va_start(va_list,var)
72 #define PVPROTO(ARGS) ()
73 #define VPROTO(ARGS) (va_alist) va_dcl
74 #define VA_START(va_list,var) va_start(va_list)
78 /* Define a generic NULL if one hasn't already been defined. */
85 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
86 #define GENERIC_PTR void *
88 #define GENERIC_PTR char *
93 #define NULL_PTR ((GENERIC_PTR)0)
100 /* On MSDOS, write temp files in current dir
101 because there's no place else we can expect to use. */
108 /* Test if something is a normal file. */
110 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
113 /* Test if something is a directory. */
115 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
118 /* By default there is no special suffix for executables. */
119 #ifndef EXECUTABLE_SUFFIX
120 #define EXECUTABLE_SUFFIX ""
123 /* By default, colon separates directories in a path. */
124 #ifndef PATH_SEPARATOR
125 #define PATH_SEPARATOR ':'
128 #define obstack_chunk_alloc xmalloc
129 #define obstack_chunk_free free
132 extern char *getenv ();
134 extern int errno
, sys_nerr
;
135 #if defined(bsd4_4) || defined(__NetBSD__)
136 extern const char *const sys_errlist
[];
138 extern char *sys_errlist
[];
141 extern int execv (), execvp ();
143 /* If a stage of compilation returns an exit status >= 1,
144 compilation of that file ceases. */
146 #define MIN_FATAL_STATUS 1
148 /* Flag saying to print the full filename of this file
149 as found through our usual search mechanism. */
151 static char *print_file_name
= NULL
;
153 /* As print_file_name, but search for executable file. */
155 static char *print_prog_name
= NULL
;
157 /* Flag saying to print the relative path we'd use to
158 find libgcc.a given the current compiler flags. */
160 static int print_multi_directory
;
162 /* Flag saying to print the list of subdirectories and
163 compiler flags used to select them in a standard form. */
165 static int print_multi_lib
;
167 /* Flag indicating whether we should print the command and arguments */
169 static int verbose_flag
;
171 /* Nonzero means write "temp" files in source directory
172 and use the source file's name in them, and don't delete them. */
174 static int save_temps_flag
;
176 /* The compiler version. */
178 static char *compiler_version
;
180 /* The target version specified with -V */
182 static char *spec_version
= DEFAULT_TARGET_VERSION
;
184 /* The target machine specified with -b. */
186 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
188 /* Nonzero if cross-compiling.
189 When -b is used, the value comes from the `specs' file. */
192 static int cross_compile
= 1;
194 static int cross_compile
= 0;
197 /* The number of errors that have occurred; the link phase will not be
198 run if this is non-zero. */
199 static int error_count
= 0;
201 /* This is the obstack which we use to allocate many strings. */
203 static struct obstack obstack
;
205 /* This is the obstack to build an environment variable to pass to
206 collect2 that describes all of the relevant switches of what to
207 pass the compiler in building the list of pointers to constructors
210 static struct obstack collect_obstack
;
212 extern char *version_string
;
214 /* Forward declaration for prototypes. */
217 static void set_spec
PROTO((char *, char *));
218 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
219 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
220 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
221 static char *skip_whitespace
PROTO((char *));
222 static void record_temp_file
PROTO((char *, int, int));
223 static void delete_if_ordinary
PROTO((char *));
224 static void delete_temp_files
PROTO((void));
225 static void delete_failure_queue
PROTO((void));
226 static void clear_failure_queue
PROTO((void));
227 static char *choose_temp_base_try
PROTO((char *, char *));
228 static void choose_temp_base
PROTO((void));
229 static int check_live_switch
PROTO((int, int));
230 static char *handle_braces
PROTO((char *));
231 static char *save_string
PROTO((char *, int));
232 static char *concat
PROTO((char *, char *, char *));
233 static int do_spec
PROTO((char *));
234 static int do_spec_1
PROTO((char *, int, char *));
235 static char *find_file
PROTO((char *));
236 static int is_directory
PROTO((char *, char *, int));
237 static void validate_switches
PROTO((char *));
238 static void validate_all_switches
PROTO((void));
239 static void give_switch
PROTO((int, int));
240 static int used_arg
PROTO((char *, int));
241 static void set_multilib_dir
PROTO((void));
242 static void print_multilib_info
PROTO((void));
243 static void pfatal_with_name
PROTO((char *));
244 static void perror_with_name
PROTO((char *));
245 static void perror_exec
PROTO((char *));
247 static void fatal
PVPROTO((char *, ...));
248 static void error
PVPROTO((char *, ...));
250 /* We must not provide any prototype here, even if ANSI C. */
251 static void fatal
PROTO(());
252 static void error
PROTO(());
259 /* Specs are strings containing lines, each of which (if not blank)
260 is made up of a program name, and arguments separated by spaces.
261 The program name must be exact and start from root, since no path
262 is searched and it is unreliable to depend on the current working directory.
263 Redirection of input or output is not supported; the subprograms must
264 accept filenames saying what files to read and write.
266 In addition, the specs can contain %-sequences to substitute variable text
267 or for conditional text. Here is a table of all defined %-sequences.
268 Note that spaces are not generated automatically around the results of
269 expanding these sequences; therefore, you can concatenate them together
270 or with constant text in a single argument.
272 %% substitute one % into the program name or argument.
273 %i substitute the name of the input file being processed.
274 %b substitute the basename of the input file being processed.
275 This is the substring up to (and not including) the last period
276 and not including the directory.
277 %g substitute the temporary-file-name-base. This is a string chosen
278 once per compilation. Different temporary file names are made by
279 concatenation of constant strings on the end, as in `%g.s'.
280 %g also has the same effect of %d.
281 %u like %g, but make the temporary file name unique.
282 %U returns the last file name generated with %u.
283 %d marks the argument containing or following the %d as a
284 temporary file name, so that that file will be deleted if CC exits
285 successfully. Unlike %g, this contributes no text to the argument.
286 %w marks the argument containing or following the %w as the
287 "output file" of this compilation. This puts the argument
288 into the sequence of arguments that %o will substitute later.
290 like %{...} but mark last argument supplied within
291 as a file to be deleted on failure.
292 %o substitutes the names of all the output files, with spaces
293 automatically placed around them. You should write spaces
294 around the %o as well or the results are undefined.
295 %o is for use in the specs for running the linker.
296 Input files whose names have no recognized suffix are not compiled
297 at all, but they are included among the output files, so they will
299 %p substitutes the standard macro predefinitions for the
300 current target machine. Use this when running cpp.
301 %P like %p, but puts `__' before and after the name of each macro.
302 (Except macros that already have __.)
304 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
305 %s current argument is the name of a library or startup file of some sort.
306 Search for that file in a standard list of directories
307 and substitute the full name found.
308 %eSTR Print STR as an error message. STR is terminated by a newline.
309 Use this when inconsistent options are detected.
310 %x{OPTION} Accumulate an option for %X.
311 %X Output the accumulated linker options specified by compilations.
312 %Y Output the accumulated assembler options specified by compilations.
313 %v1 Substitute the major version number of GCC.
314 (For version 2.5.n, this is 2.)
315 %v2 Substitute the minor version number of GCC.
316 (For version 2.5.n, this is 5.)
317 %a process ASM_SPEC as a spec.
318 This allows config.h to specify part of the spec for running as.
319 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
320 used here. This can be used to run a post-processor after the
321 assembler has done it's job.
322 %D Dump out a -L option for each directory in startfile_prefix.
323 If multilib_dir is set, extra entries are generated with it affixed.
324 %l process LINK_SPEC as a spec.
325 %L process LIB_SPEC as a spec.
326 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
327 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
328 %c process SIGNED_CHAR_SPEC as a spec.
329 %C process CPP_SPEC as a spec. A capital C is actually used here.
330 %1 process CC1_SPEC as a spec.
331 %2 process CC1PLUS_SPEC as a spec.
332 %| output "-" if the input for the current command is coming from a pipe.
333 %* substitute the variable part of a matched option. (See below.)
334 Note that each comma in the substituted string is replaced by
336 %{S} substitutes the -S switch, if that switch was given to CC.
337 If that switch was not specified, this substitutes nothing.
338 Here S is a metasyntactic variable.
339 %{S*} substitutes all the switches specified to CC whose names start
340 with -S. This is used for -o, -D, -I, etc; switches that take
341 arguments. CC considers `-o foo' as being one switch whose
342 name starts with `o'. %{o*} would substitute this text,
343 including the space; thus, two arguments would be generated.
344 %{S*:X} substitutes X if one or more switches whose names start with -S are
345 specified to CC. Note that the tail part of the -S option
346 (i.e. the part matched by the `*') will be substituted for each
347 occurrence of %* within X.
348 %{S:X} substitutes X, but only if the -S switch was given to CC.
349 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
350 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
351 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
352 %{.S:X} substitutes X, but only if processing a file with suffix S.
353 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
354 %(Spec) processes a specification defined in a specs file as *Spec:
355 %[Spec] as above, but put __ around -D arguments
357 The conditional text X in a %{S:X} or %{!S:X} construct may contain
358 other nested % constructs or spaces, or even newlines. They are
359 processed as usual, as described above.
361 The -O, -f, -m, and -W switches are handled specifically in these
362 constructs. If another value of -O or the negated form of a -f, -m, or
363 -W switch is found later in the command line, the earlier switch
364 value is ignored, except with {S*} where S is just one letter; this
365 passes all matching options.
367 The character | is used to indicate that a command should be piped to
368 the following command, but only if -pipe is specified.
370 Note that it is built into CC which switches take arguments and which
371 do not. You might think it would be useful to generalize this to
372 allow each compiler's spec to say which switches take arguments. But
373 this cannot be done in a consistent fashion. CC cannot even decide
374 which input files have been specified without knowing which switches
375 take arguments, and it must know which input files to compile in order
376 to tell which compilers to run.
378 CC also knows implicitly that arguments starting in `-l' are to be
379 treated as compiler output files, and passed to the linker in their
380 proper position among the other output files. */
382 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
384 /* config.h can define ASM_SPEC to provide extra args to the assembler
385 or extra switch-translations. */
390 /* config.h can define ASM_FINAL_SPEC to run a post processor after
391 the assembler has run. */
392 #ifndef ASM_FINAL_SPEC
393 #define ASM_FINAL_SPEC ""
396 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
397 or extra switch-translations. */
402 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
403 or extra switch-translations. */
408 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
409 or extra switch-translations. */
411 #define CC1PLUS_SPEC ""
414 /* config.h can define LINK_SPEC to provide extra args to the linker
415 or extra switch-translations. */
420 /* config.h can define LIB_SPEC to override the default libraries. */
422 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
425 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
426 #ifndef STARTFILE_SPEC
427 #define STARTFILE_SPEC \
428 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
431 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
432 Make the string nonempty to require spaces there. */
433 #ifndef SWITCHES_NEED_SPACES
434 #define SWITCHES_NEED_SPACES ""
437 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
439 #define ENDFILE_SPEC ""
442 /* This spec is used for telling cpp whether char is signed or not. */
443 #ifndef SIGNED_CHAR_SPEC
444 /* Use #if rather than ?:
445 because MIPS C compiler rejects like ?: in initializers. */
446 #if DEFAULT_SIGNED_CHAR
447 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
449 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
453 /* MULTILIB_SELECT comes from multilib.h. It gives a
454 string interpreted by set_multilib_dir to select a library
455 subdirectory based on the compiler options. */
456 #ifndef MULTILIB_SELECT
457 #define MULTILIB_SELECT ". ;"
460 static char *cpp_spec
= CPP_SPEC
;
461 static char *cpp_predefines
= CPP_PREDEFINES
;
462 static char *cc1_spec
= CC1_SPEC
;
463 static char *cc1plus_spec
= CC1PLUS_SPEC
;
464 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
465 static char *asm_spec
= ASM_SPEC
;
466 static char *asm_final_spec
= ASM_FINAL_SPEC
;
467 static char *link_spec
= LINK_SPEC
;
468 static char *lib_spec
= LIB_SPEC
;
469 static char *endfile_spec
= ENDFILE_SPEC
;
470 static char *startfile_spec
= STARTFILE_SPEC
;
471 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
472 static char *multilib_select
= MULTILIB_SELECT
;
474 /* This defines which switch letters take arguments. */
476 #ifndef SWITCH_TAKES_ARG
477 #define SWITCH_TAKES_ARG(CHAR) \
478 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
479 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
480 || (CHAR) == 'I' || (CHAR) == 'm' \
481 || (CHAR) == 'L' || (CHAR) == 'A')
484 /* This defines which multi-letter switches take arguments. */
486 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
487 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
488 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
489 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
490 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
491 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
492 || !strcmp (STR, "isystem"))
494 #ifndef WORD_SWITCH_TAKES_ARG
495 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
498 /* Record the mapping from file suffixes for compilation specs. */
502 char *suffix
; /* Use this compiler for input files
503 whose names end in this suffix. */
505 char *spec
[4]; /* To use this compiler, concatenate these
506 specs and pass to do_spec. */
509 /* Pointer to a vector of `struct compiler' that gives the spec for
510 compiling a file, based on its suffix.
511 A file that does not end in any of these suffixes will be passed
512 unchanged to the loader and nothing else will be done to it.
514 An entry containing two 0s is used to terminate the vector.
516 If multiple entries match a file, the last matching one is used. */
518 static struct compiler
*compilers
;
520 /* Number of entries in `compilers', not counting the null terminator. */
522 static int n_compilers
;
524 /* The default list of file name suffixes and their compilation specs. */
526 static struct compiler default_compilers
[] =
530 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
531 %{C:%{!E:%eGNU C does not support -C without using -E}}\
532 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
533 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
534 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
535 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
536 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
537 %{traditional-cpp:-traditional}\
538 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
539 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
540 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
541 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
542 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
543 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
545 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
546 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
547 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
548 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
549 %{!pipe:%g.s} %A\n }}}}"},
551 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
552 %{C:%{!E:%eGNU C does not support -C without using -E}}\
553 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
554 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
555 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
556 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
557 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
558 %{traditional-cpp:-traditional}\
559 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
561 %{!E:%e-E required when input is from standard input}"},
562 {".m", "@objective-c"},
564 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
565 %{C:%{!E:%eGNU C does not support -C without using -E}}\
566 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
567 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
568 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
569 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
570 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
571 %{traditional-cpp:-traditional}\
572 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
573 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
574 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
575 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
576 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
577 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
578 -lang-objc %{gen-decls} \
580 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
581 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
582 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
583 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
584 %{!pipe:%g.s} %A\n }}}}"},
587 "%{!E:%eCompilation of header file requested} \
588 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
589 %{C:%{!E:%eGNU C does not support -C without using -E}}\
590 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
591 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
592 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
593 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
594 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
595 %{traditional-cpp:-traditional}\
596 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
603 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
604 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
605 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
606 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
607 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
608 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
609 %{traditional-cpp:-traditional} %{trigraphs}\
610 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
611 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
612 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
613 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
614 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
615 %{traditional} %{v:-version} %{pg:-p} %{p}\
616 %{f*} %{+e*} %{aux-info*}\
617 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
618 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
619 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
620 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
621 %{!pipe:%g.s} %A\n }}}}"},
622 {".i", "@cpp-output"},
624 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
625 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
626 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
628 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
629 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
630 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
631 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
632 %{!pipe:%g.s} %A\n }}}}"},
633 {".ii", "@c++-cpp-output"},
635 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
636 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
637 %{traditional} %{v:-version} %{pg:-p} %{p}\
638 %{f*} %{+e*} %{aux-info*}\
639 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
640 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
641 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
642 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
643 %{!pipe:%g.s} %A\n }}}}"},
644 {".s", "@assembler"},
646 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
647 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
649 {".S", "@assembler-with-cpp"},
650 {"@assembler-with-cpp",
651 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
652 %{C:%{!E:%eGNU C does not support -C without using -E}}\
653 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
654 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
655 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
656 %{traditional-cpp:-traditional}\
657 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*}\
658 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
659 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
660 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
661 %{!pipe:%g.s} %A\n }}}}"},
666 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
667 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
669 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
670 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
671 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
672 %{c:%W{o*}%{!o*:-o %w%b.o}}\
673 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
674 /* Mark end of table */
678 /* Number of elements in default_compilers, not counting the terminator. */
680 static int n_default_compilers
681 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
683 /* Here is the spec for running the linker, after compiling all files. */
685 /* -u* was put back because both BSD and SysV seem to support it. */
686 /* %{static:} simply prevents an error message if the target machine
687 doesn't handle -static. */
688 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
689 scripts which exist in user specified directories, or in standard
691 #ifdef LINK_LIBGCC_SPECIAL_1
692 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
693 static char *link_command_spec
= "\
695 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
696 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
697 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
698 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
700 #ifdef LINK_LIBGCC_SPECIAL
701 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
702 static char *link_command_spec
= "\
704 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
705 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
706 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
707 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
709 /* Use -L and have the linker do the search for -lgcc. */
710 static char *link_command_spec
= "\
712 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
713 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
714 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
715 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
719 /* A vector of options to give to the linker.
720 These options are accumulated by -Xlinker and -Wl,
721 and substituted into the linker command with %X. */
722 static int n_linker_options
;
723 static char **linker_options
;
725 /* A vector of options to give to the assembler.
726 These options are accumulated by -Wa,
727 and substituted into the assembler command with %X. */
728 static int n_assembler_options
;
729 static char **assembler_options
;
731 /* Define how to map long options into short ones. */
733 /* This structure describes one mapping. */
736 /* The long option's name. */
738 /* The equivalent short option. */
740 /* Argument info. A string of flag chars; NULL equals no options.
741 a => argument required.
742 o => argument optional.
743 j => join argument to equivalent, making one word.
744 * => allow other text after NAME as an argument. */
748 /* This is the table of mappings. Mappings are tried sequentially
749 for each option encountered; the first one that matches, wins. */
751 struct option_map option_map
[] =
753 {"--profile-blocks", "-a", 0},
754 {"--target", "-b", "a"},
755 {"--compile", "-c", 0},
756 {"--dump", "-d", "a"},
757 {"--entry", "-e", 0},
758 {"--debug", "-g", "oj"},
759 {"--include", "-include", "a"},
760 {"--imacros", "-imacros", "a"},
761 {"--include-prefix", "-iprefix", "a"},
762 {"--include-directory-after", "-idirafter", "a"},
763 {"--include-with-prefix", "-iwithprefix", "a"},
764 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
765 {"--include-with-prefix-after", "-iwithprefix", "a"},
766 {"--machine-", "-m", "*j"},
767 {"--machine", "-m", "aj"},
768 {"--no-standard-includes", "-nostdinc", 0},
769 {"--no-standard-libraries", "-nostdlib", 0},
770 {"--no-precompiled-includes", "-noprecomp", 0},
771 {"--output", "-o", "a"},
772 {"--profile", "-p", 0},
773 {"--quiet", "-q", 0},
774 {"--silent", "-q", 0},
775 {"--force-link", "-u", "a"},
776 {"--verbose", "-v", 0},
777 {"--version", "-dumpversion", 0},
778 {"--no-warnings", "-w", 0},
779 {"--language", "-x", "a"},
781 {"--assert", "-A", "a"},
782 {"--prefix", "-B", "a"},
783 {"--comments", "-C", 0},
784 {"--define-macro", "-D", "a"},
785 {"--preprocess", "-E", 0},
786 {"--trace-includes", "-H", 0},
787 {"--include-directory", "-I", "a"},
788 {"--include-barrier", "-I-", 0},
789 {"--library-directory", "-L", "a"},
790 {"--dependencies", "-M", 0},
791 {"--user-dependencies", "-MM", 0},
792 {"--write-dependencies", "-MD", 0},
793 {"--write-user-dependencies", "-MMD", 0},
794 {"--print-missing-file-dependencies", "-MG", 0},
795 {"--optimize", "-O", "oj"},
796 {"--no-line-commands", "-P", 0},
797 {"--assemble", "-S", 0},
798 {"--undefine-macro", "-U", "a"},
799 {"--use-version", "-V", "a"},
800 {"--for-assembler", "-Wa", "a"},
801 {"--extra-warnings", "-W", 0},
802 {"--all-warnings", "-Wall", 0},
803 {"--warn-", "-W", "*j"},
804 {"--for-linker", "-Xlinker", "a"},
806 {"--ansi", "-ansi", 0},
807 {"--traditional", "-traditional", 0},
808 {"--traditional-cpp", "-traditional-cpp", 0},
809 {"--trigraphs", "-trigraphs", 0},
810 {"--pipe", "-pipe", 0},
811 {"--dumpbase", "-dumpbase", "a"},
812 {"--pedantic", "-pedantic", 0},
813 {"--pedantic-errors", "-pedantic-errors", 0},
814 {"--save-temps", "-save-temps", 0},
815 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
816 {"--print-file-name", "-print-file-name=", "aj"},
817 {"--print-prog-name", "-print-prog-name=", "aj"},
818 {"--print-multi-lib", "-print-multi-lib", 0},
819 {"--print-multi-directory", "-print-multi-directory", 0},
820 {"--static", "-static", 0},
821 {"--shared", "-shared", 0},
822 {"--symbolic", "-symbolic", 0},
826 /* Translate the options described by *ARGCP and *ARGVP.
827 Make a new vector and store it back in *ARGVP,
828 and store its length in *ARGVC. */
831 translate_options (argcp
, argvp
)
837 char **argv
= *argvp
;
838 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
842 newv
[newindex
++] = argv
[i
++];
846 /* Translate -- options. */
847 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
849 /* Find a mapping that applies to this option. */
850 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
852 int optlen
= strlen (option_map
[j
].name
);
853 int complen
= strlen (argv
[i
]);
854 char *arginfo
= option_map
[j
].arg_info
;
858 if (complen
> optlen
)
860 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
862 int extra
= strlen (argv
[i
]) > optlen
;
867 /* If the option has an argument, accept that. */
868 if (argv
[i
][optlen
] == '=')
869 arg
= argv
[i
] + optlen
+ 1;
870 /* If this mapping allows extra text at end of name,
871 accept that as "argument". */
872 else if (index (arginfo
, '*') != 0)
873 arg
= argv
[i
] + optlen
;
874 /* Otherwise, extra text at end means mismatch.
875 Try other mappings. */
879 else if (index (arginfo
, '*') != 0)
880 error ("Incomplete `%s' option", option_map
[j
].name
);
882 /* Handle arguments. */
883 if (index (arginfo
, 'o') != 0)
888 error ("Missing argument to `%s' option",
893 else if (index (arginfo
, '*') != 0)
895 else if (index (arginfo
, 'a') == 0)
898 error ("Extraneous argument to `%s' option",
903 /* Store the translation as one argv elt or as two. */
904 if (arg
!= 0 && index (arginfo
, 'j') != 0)
905 newv
[newindex
++] = concat (option_map
[j
].equivalent
,
909 newv
[newindex
++] = option_map
[j
].equivalent
;
910 newv
[newindex
++] = arg
;
913 newv
[newindex
++] = option_map
[j
].equivalent
;
920 /* Handle old-fashioned options--just copy them through,
921 with their arguments. */
922 else if (argv
[i
][0] == '-')
924 char *p
= argv
[i
] + 1;
928 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
929 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
930 else if (WORD_SWITCH_TAKES_ARG (p
))
931 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
932 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
935 else if (! strcmp (p
, "Xlinker"))
938 /* Watch out for an option at the end of the command line that
939 is missing arguments, and avoid skipping past the end of the
941 if (nskip
+ i
> argc
)
946 newv
[newindex
++] = argv
[i
++];
951 /* Ordinary operands, or +e options. */
952 newv
[newindex
++] = argv
[i
++];
961 /* Read compilation specs from a file named FILENAME,
962 replacing the default ones.
964 A suffix which starts with `*' is a definition for
965 one of the machine-specific sub-specs. The "suffix" should be
966 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
967 The corresponding spec is stored in asm_spec, etc.,
968 rather than in the `compilers' vector.
970 Anything invalid in the file is a fatal error. */
973 read_specs (filename
)
982 fprintf (stderr
, "Reading specs from %s\n", filename
);
984 /* Open and stat the file. */
985 desc
= open (filename
, 0, 0);
987 pfatal_with_name (filename
);
988 if (stat (filename
, &statbuf
) < 0)
989 pfatal_with_name (filename
);
991 /* Read contents of file into BUFFER. */
992 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
993 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
994 buffer
[statbuf
.st_size
] = 0;
997 /* Scan BUFFER for specs, putting them in the vector. */
1003 char *in
, *out
, *p1
, *p2
;
1005 /* Advance P in BUFFER to the next nonblank nocomment line. */
1006 p
= skip_whitespace (p
);
1010 /* Find the colon that should end the suffix. */
1012 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1013 /* The colon shouldn't be missing. */
1015 fatal ("specs file malformed after %d characters", p1
- buffer
);
1016 /* Skip back over trailing whitespace. */
1018 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1019 /* Copy the suffix to a string. */
1020 suffix
= save_string (p
, p2
- p
);
1021 /* Find the next line. */
1022 p
= skip_whitespace (p1
+ 1);
1024 fatal ("specs file malformed after %d characters", p
- buffer
);
1026 /* Find next blank line. */
1027 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1028 /* Specs end at the blank line and do not include the newline. */
1029 spec
= save_string (p
, p1
- p
);
1032 /* Delete backslash-newline sequences from the spec. */
1037 if (in
[0] == '\\' && in
[1] == '\n')
1039 else if (in
[0] == '#')
1041 while (*in
&& *in
!= '\n') in
++;
1048 if (suffix
[0] == '*')
1050 if (! strcmp (suffix
, "*link_command"))
1051 link_command_spec
= spec
;
1053 set_spec (suffix
+ 1, spec
);
1057 /* Add this pair to the vector. */
1059 = ((struct compiler
*)
1060 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1061 compilers
[n_compilers
].suffix
= suffix
;
1062 bzero ((char *) compilers
[n_compilers
].spec
,
1063 sizeof compilers
[n_compilers
].spec
);
1064 compilers
[n_compilers
].spec
[0] = spec
;
1066 bzero ((char *) &compilers
[n_compilers
],
1067 sizeof compilers
[n_compilers
]);
1071 link_command_spec
= spec
;
1074 if (link_command_spec
== 0)
1075 fatal ("spec file has no spec for linking");
1084 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1085 be considered whitespace. */
1086 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1088 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1092 while (*p
!= '\n') p
++;
1102 /* Structure to keep track of the specs that have been defined so far. These
1103 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1107 char *name
; /* Name of the spec. */
1108 char *spec
; /* The spec itself. */
1109 struct spec_list
*next
; /* Next spec in linked list. */
1112 /* List of specs that have been defined so far. */
1114 static struct spec_list
*specs
= (struct spec_list
*) 0;
1116 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1117 removed; If the spec starts with a + then SPEC is added to the end of the
1121 set_spec (name
, spec
)
1125 struct spec_list
*sl
;
1128 /* See if the spec already exists */
1129 for (sl
= specs
; sl
; sl
= sl
->next
)
1130 if (strcmp (sl
->name
, name
) == 0)
1135 /* Not found - make it */
1136 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1137 sl
->name
= save_string (name
, strlen (name
));
1138 sl
->spec
= save_string ("", 0);
1143 old_spec
= sl
->spec
;
1144 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1145 sl
->spec
= concat (old_spec
, spec
+ 1, "");
1147 sl
->spec
= save_string (spec
, strlen (spec
));
1149 if (! strcmp (name
, "asm"))
1150 asm_spec
= sl
->spec
;
1151 else if (! strcmp (name
, "asm_final"))
1152 asm_final_spec
= sl
->spec
;
1153 else if (! strcmp (name
, "cc1"))
1154 cc1_spec
= sl
->spec
;
1155 else if (! strcmp (name
, "cc1plus"))
1156 cc1plus_spec
= sl
->spec
;
1157 else if (! strcmp (name
, "cpp"))
1158 cpp_spec
= sl
->spec
;
1159 else if (! strcmp (name
, "endfile"))
1160 endfile_spec
= sl
->spec
;
1161 else if (! strcmp (name
, "lib"))
1162 lib_spec
= sl
->spec
;
1163 else if (! strcmp (name
, "link"))
1164 link_spec
= sl
->spec
;
1165 else if (! strcmp (name
, "predefines"))
1166 cpp_predefines
= sl
->spec
;
1167 else if (! strcmp (name
, "signed_char"))
1168 signed_char_spec
= sl
->spec
;
1169 else if (! strcmp (name
, "startfile"))
1170 startfile_spec
= sl
->spec
;
1171 else if (! strcmp (name
, "switches_need_spaces"))
1172 switches_need_spaces
= sl
->spec
;
1173 else if (! strcmp (name
, "cross_compile"))
1174 cross_compile
= atoi (sl
->spec
);
1175 else if (! strcmp (name
, "multilib"))
1176 multilib_select
= sl
->spec
;
1177 /* Free the old spec */
1182 /* Accumulate a command (program name and args), and run it. */
1184 /* Vector of pointers to arguments in the current line of specifications. */
1186 static char **argbuf
;
1188 /* Number of elements allocated in argbuf. */
1190 static int argbuf_length
;
1192 /* Number of elements in argbuf currently in use (containing args). */
1194 static int argbuf_index
;
1196 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1197 temp file. Used only if MKTEMP_EACH_FILE. */
1199 static struct temp_name
{
1200 char *suffix
; /* suffix associated with the code. */
1201 int length
; /* strlen (suffix). */
1202 int unique
; /* Indicates whether %g or %u/%U was used. */
1203 char *filename
; /* associated filename. */
1204 int filename_length
; /* strlen (filename). */
1205 struct temp_name
*next
;
1208 /* Number of commands executed so far. */
1210 static int execution_count
;
1212 /* Number of commands that exited with a signal. */
1214 static int signal_count
;
1216 /* Name with which this program was invoked. */
1218 static char *programname
;
1220 /* Structures to keep track of prefixes to try when looking for files. */
1224 char *prefix
; /* String to prepend to the path. */
1225 struct prefix_list
*next
; /* Next in linked list. */
1226 int require_machine_suffix
; /* Don't use without machine_suffix. */
1227 /* 2 means try both machine_suffix and just_machine_suffix. */
1228 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1233 struct prefix_list
*plist
; /* List of prefixes to try */
1234 int max_len
; /* Max length of a prefix in PLIST */
1235 char *name
; /* Name of this list (used in config stuff) */
1238 /* List of prefixes to try when looking for executables. */
1240 static struct path_prefix exec_prefix
= { 0, 0, "exec" };
1242 /* List of prefixes to try when looking for startup (crt0) files. */
1244 static struct path_prefix startfile_prefix
= { 0, 0, "startfile" };
1246 /* List of prefixes to try when looking for include files. */
1248 static struct path_prefix include_prefix
= { 0, 0, "include" };
1250 /* Suffix to attach to directories searched for commands.
1251 This looks like `MACHINE/VERSION/'. */
1253 static char *machine_suffix
= 0;
1255 /* Suffix to attach to directories searched for commands.
1256 This is just `MACHINE/'. */
1258 static char *just_machine_suffix
= 0;
1260 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1262 static char *gcc_exec_prefix
;
1264 /* Default prefixes to attach to command names. */
1266 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1267 #undef MD_EXEC_PREFIX
1268 #undef MD_STARTFILE_PREFIX
1269 #undef MD_STARTFILE_PREFIX_1
1272 #ifndef STANDARD_EXEC_PREFIX
1273 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1274 #endif /* !defined STANDARD_EXEC_PREFIX */
1276 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1277 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1278 #ifdef MD_EXEC_PREFIX
1279 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1282 #ifndef STANDARD_STARTFILE_PREFIX
1283 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1284 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1286 #ifdef MD_STARTFILE_PREFIX
1287 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1289 #ifdef MD_STARTFILE_PREFIX_1
1290 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1292 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1293 static char *standard_startfile_prefix_1
= "/lib/";
1294 static char *standard_startfile_prefix_2
= "/usr/lib/";
1296 #ifndef TOOLDIR_BASE_PREFIX
1297 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1299 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1300 static char *tooldir_prefix
;
1302 /* Subdirectory to use for locating libraries. Set by
1303 set_multilib_dir based on the compilation options. */
1305 static char *multilib_dir
;
1307 /* Clear out the vector of arguments (after a command is executed). */
1315 /* Add one argument to the vector at the end.
1316 This is done when a space is seen or at the end of the line.
1317 If DELETE_ALWAYS is nonzero, the arg is a filename
1318 and the file should be deleted eventually.
1319 If DELETE_FAILURE is nonzero, the arg is a filename
1320 and the file should be deleted if this compilation fails. */
1323 store_arg (arg
, delete_always
, delete_failure
)
1325 int delete_always
, delete_failure
;
1327 if (argbuf_index
+ 1 == argbuf_length
)
1329 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1332 argbuf
[argbuf_index
++] = arg
;
1333 argbuf
[argbuf_index
] = 0;
1335 if (delete_always
|| delete_failure
)
1336 record_temp_file (arg
, delete_always
, delete_failure
);
1339 /* Record the names of temporary files we tell compilers to write,
1340 and delete them at the end of the run. */
1342 /* This is the common prefix we use to make temp file names.
1343 It is chosen once for each run of this program.
1344 It is substituted into a spec by %g.
1345 Thus, all temp file names contain this prefix.
1346 In practice, all temp file names start with this prefix.
1348 This prefix comes from the envvar TMPDIR if it is defined;
1349 otherwise, from the P_tmpdir macro if that is defined;
1350 otherwise, in /usr/tmp or /tmp. */
1352 static char *temp_filename
;
1354 /* Length of the prefix. */
1356 static int temp_filename_length
;
1358 /* Define the list of temporary files to delete. */
1363 struct temp_file
*next
;
1366 /* Queue of files to delete on success or failure of compilation. */
1367 static struct temp_file
*always_delete_queue
;
1368 /* Queue of files to delete on failure of compilation. */
1369 static struct temp_file
*failure_delete_queue
;
1371 /* Record FILENAME as a file to be deleted automatically.
1372 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1373 otherwise delete it in any case.
1374 FAIL_DELETE nonzero means delete it if a compilation step fails;
1375 otherwise delete it in any case. */
1378 record_temp_file (filename
, always_delete
, fail_delete
)
1383 register char *name
;
1384 name
= xmalloc (strlen (filename
) + 1);
1385 strcpy (name
, filename
);
1389 register struct temp_file
*temp
;
1390 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1391 if (! strcmp (name
, temp
->name
))
1393 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1394 temp
->next
= always_delete_queue
;
1396 always_delete_queue
= temp
;
1402 register struct temp_file
*temp
;
1403 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1404 if (! strcmp (name
, temp
->name
))
1406 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1407 temp
->next
= failure_delete_queue
;
1409 failure_delete_queue
= temp
;
1414 /* Delete all the temporary files whose names we previously recorded. */
1417 delete_if_ordinary (name
)
1424 printf ("Delete %s? (y or n) ", name
);
1428 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1429 if (i
== 'y' || i
== 'Y')
1431 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1432 if (unlink (name
) < 0)
1434 perror_with_name (name
);
1438 delete_temp_files ()
1440 register struct temp_file
*temp
;
1442 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1443 delete_if_ordinary (temp
->name
);
1444 always_delete_queue
= 0;
1447 /* Delete all the files to be deleted on error. */
1450 delete_failure_queue ()
1452 register struct temp_file
*temp
;
1454 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1455 delete_if_ordinary (temp
->name
);
1459 clear_failure_queue ()
1461 failure_delete_queue
= 0;
1464 /* Compute a string to use as the base of all temporary file names.
1465 It is substituted for %g. */
1468 choose_temp_base_try (try, base
)
1475 else if (try == (char *)0)
1477 else if (access (try, R_OK
| W_OK
) != 0)
1490 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1491 base
= choose_temp_base_try (getenv ("TMP"), base
);
1492 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1495 base
= choose_temp_base_try (P_tmpdir
, base
);
1498 base
= choose_temp_base_try ("/usr/tmp", base
);
1499 base
= choose_temp_base_try ("/tmp", base
);
1501 /* If all else fails, use the current directory! */
1502 if (base
== (char *)0)
1505 len
= strlen (base
);
1506 temp_filename
= xmalloc (len
+ sizeof("/ccXXXXXX") + 1);
1507 strcpy (temp_filename
, base
);
1508 if (len
> 0 && temp_filename
[len
-1] != '/')
1509 temp_filename
[len
++] = '/';
1510 strcpy (temp_filename
+ len
, "ccXXXXXX");
1512 mktemp (temp_filename
);
1513 temp_filename_length
= strlen (temp_filename
);
1514 if (temp_filename_length
== 0)
1519 /* Routine to add variables to the environment. We do this to pass
1520 the pathname of the gcc driver, and the directories search to the
1521 collect2 program, which is being run as ld. This way, we can be
1522 sure of executing the right compiler when collect2 wants to build
1523 constructors and destructors. Since the environment variables we
1524 use come from an obstack, we don't have to worry about allocating
1533 #ifndef VMS /* nor about VMS */
1535 extern char **environ
;
1536 char **old_environ
= environ
;
1540 int str_len
= strlen (str
);
1544 while ((ch
= *p
++) != '\0' && ch
!= '=')
1550 /* Search for replacing an existing environment variable, and
1551 count the number of total environment variables. */
1552 for (envp
= old_environ
; *envp
; envp
++)
1555 if (!strncmp (str
, *envp
, name_len
))
1562 /* Add a new environment variable */
1563 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1565 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1566 sizeof (char *) * (num_envs
+1));
1571 #endif /* HAVE_PUTENV */
1574 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1577 putenv_from_prefixes (paths
, env_var
)
1578 struct path_prefix
*paths
;
1581 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1583 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1584 int first_time
= TRUE
;
1585 struct prefix_list
*pprefix
;
1587 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1589 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1591 int len
= strlen (pprefix
->prefix
);
1594 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1597 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1600 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1601 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1604 if (just_machine_suffix
1605 && pprefix
->require_machine_suffix
== 2
1606 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1609 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1612 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1613 obstack_grow (&collect_obstack
, just_machine_suffix
,
1617 if (!pprefix
->require_machine_suffix
)
1620 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1623 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1626 obstack_1grow (&collect_obstack
, '\0');
1627 putenv (obstack_finish (&collect_obstack
));
1631 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1632 access to check permissions.
1633 Return 0 if not found, otherwise return its name, allocated with malloc. */
1636 find_a_file (pprefix
, name
, mode
)
1637 struct path_prefix
*pprefix
;
1642 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1643 struct prefix_list
*pl
;
1644 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1647 len
+= strlen (machine_suffix
);
1649 temp
= xmalloc (len
);
1651 /* Determine the filename to execute (special case for absolute paths). */
1655 if (access (name
, mode
))
1657 strcpy (temp
, name
);
1662 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1666 /* Some systems have a suffix for executable files.
1667 So try appending that first. */
1668 if (file_suffix
[0] != 0)
1670 strcpy (temp
, pl
->prefix
);
1671 strcat (temp
, machine_suffix
);
1672 strcat (temp
, name
);
1673 strcat (temp
, file_suffix
);
1674 if (access (temp
, mode
) == 0)
1676 if (pl
->used_flag_ptr
!= 0)
1677 *pl
->used_flag_ptr
= 1;
1682 /* Now try just the name. */
1683 strcpy (temp
, pl
->prefix
);
1684 strcat (temp
, machine_suffix
);
1685 strcat (temp
, name
);
1686 if (access (temp
, mode
) == 0)
1688 if (pl
->used_flag_ptr
!= 0)
1689 *pl
->used_flag_ptr
= 1;
1694 /* Certain prefixes are tried with just the machine type,
1695 not the version. This is used for finding as, ld, etc. */
1696 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1698 /* Some systems have a suffix for executable files.
1699 So try appending that first. */
1700 if (file_suffix
[0] != 0)
1702 strcpy (temp
, pl
->prefix
);
1703 strcat (temp
, just_machine_suffix
);
1704 strcat (temp
, name
);
1705 strcat (temp
, file_suffix
);
1706 if (access (temp
, mode
) == 0)
1708 if (pl
->used_flag_ptr
!= 0)
1709 *pl
->used_flag_ptr
= 1;
1714 strcpy (temp
, pl
->prefix
);
1715 strcat (temp
, just_machine_suffix
);
1716 strcat (temp
, name
);
1717 if (access (temp
, mode
) == 0)
1719 if (pl
->used_flag_ptr
!= 0)
1720 *pl
->used_flag_ptr
= 1;
1725 /* Certain prefixes can't be used without the machine suffix
1726 when the machine or version is explicitly specified. */
1727 if (!pl
->require_machine_suffix
)
1729 /* Some systems have a suffix for executable files.
1730 So try appending that first. */
1731 if (file_suffix
[0] != 0)
1733 strcpy (temp
, pl
->prefix
);
1734 strcat (temp
, name
);
1735 strcat (temp
, file_suffix
);
1736 if (access (temp
, mode
) == 0)
1738 if (pl
->used_flag_ptr
!= 0)
1739 *pl
->used_flag_ptr
= 1;
1744 strcpy (temp
, pl
->prefix
);
1745 strcat (temp
, name
);
1746 if (access (temp
, mode
) == 0)
1748 if (pl
->used_flag_ptr
!= 0)
1749 *pl
->used_flag_ptr
= 1;
1759 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1760 at the start of the list, otherwise it goes at the end.
1762 If WARN is nonzero, we will warn if no file is found
1763 through this prefix. WARN should point to an int
1764 which will be set to 1 if this entry is used.
1766 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1767 the complete value of machine_suffix.
1768 2 means try both machine_suffix and just_machine_suffix. */
1771 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1772 struct path_prefix
*pprefix
;
1775 int require_machine_suffix
;
1778 struct prefix_list
*pl
, **prev
;
1781 if (!first
&& pprefix
->plist
)
1783 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1788 prev
= &pprefix
->plist
;
1790 /* Keep track of the longest prefix */
1792 len
= strlen (prefix
);
1793 if (len
> pprefix
->max_len
)
1794 pprefix
->max_len
= len
;
1796 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1797 pl
->prefix
= save_string (prefix
, len
);
1798 pl
->require_machine_suffix
= require_machine_suffix
;
1799 pl
->used_flag_ptr
= warn
;
1806 pl
->next
= (struct prefix_list
*) 0;
1810 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1813 unused_prefix_warnings (pprefix
)
1814 struct path_prefix
*pprefix
;
1816 struct prefix_list
*pl
= pprefix
->plist
;
1820 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1822 error ("file path prefix `%s' never used",
1824 /* Prevent duplicate warnings. */
1825 *pl
->used_flag_ptr
= 1;
1831 /* Get rid of all prefixes built up so far in *PLISTP. */
1834 free_path_prefix (pprefix
)
1835 struct path_prefix
*pprefix
;
1837 struct prefix_list
*pl
= pprefix
->plist
;
1838 struct prefix_list
*temp
;
1844 free (temp
->prefix
);
1845 free ((char *) temp
);
1847 pprefix
->plist
= (struct prefix_list
*) 0;
1850 /* stdin file number. */
1851 #define STDIN_FILE_NO 0
1853 /* stdout file number. */
1854 #define STDOUT_FILE_NO 1
1856 /* value of `pipe': port index for reading. */
1859 /* value of `pipe': port index for writing. */
1860 #define WRITE_PORT 1
1862 /* Pipe waiting from last process, to be used as input for the next one.
1863 Value is STDIN_FILE_NO if no pipe is waiting
1864 (i.e. the next command is the first of a group). */
1866 static int last_pipe_input
;
1868 /* Fork one piped subcommand. FUNC is the system call to use
1869 (either execv or execvp). ARGV is the arg vector to use.
1870 NOT_LAST is nonzero if this is not the last subcommand
1871 (i.e. its output should be piped to the next one.) */
1876 /* Declare these to avoid compilation error. They won't be called. */
1877 int execv(const char *a
, const char **b
){}
1878 int execvp(const char *a
, const char **b
){}
1881 pexecute (search_flag
, program
, argv
, not_last
)
1889 int i
, el
= search_flag
? 0 : 4;
1891 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1892 rf
= scmd
+ strlen(program
) + 2 + el
;
1893 sprintf (scmd
, "%s%s @%s.gp", program
,
1894 (search_flag
? "" : ".exe"), temp_filename
);
1895 argfile
= fopen (rf
, "w");
1897 pfatal_with_name (rf
);
1899 for (i
=1; argv
[i
]; i
++)
1902 for (cp
= argv
[i
]; *cp
; cp
++)
1904 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1905 fputc ('\\', argfile
);
1906 fputc (*cp
, argfile
);
1908 fputc ('\n', argfile
);
1918 perror_exec (program
);
1919 return MIN_FATAL_STATUS
<< 8;
1925 #else /* not __MSDOS__ */
1928 pexecute (search_flag
, program
, argv
, not_last
)
1934 int (*func
)() = (search_flag
? execv
: execvp
);
1937 int input_desc
= last_pipe_input
;
1938 int output_desc
= STDOUT_FILE_NO
;
1939 int retries
, sleep_interval
;
1941 /* If this isn't the last process, make a pipe for its output,
1942 and record it as waiting to be the input to the next process. */
1946 if (pipe (pdes
) < 0)
1947 pfatal_with_name ("pipe");
1948 output_desc
= pdes
[WRITE_PORT
];
1949 last_pipe_input
= pdes
[READ_PORT
];
1952 last_pipe_input
= STDIN_FILE_NO
;
1954 /* Fork a subprocess; wait and retry if it fails. */
1956 for (retries
= 0; retries
< 4; retries
++)
1961 sleep (sleep_interval
);
1962 sleep_interval
*= 2;
1969 pfatal_with_name ("fork");
1971 pfatal_with_name ("vfork");
1977 /* Move the input and output pipes into place, if nec. */
1978 if (input_desc
!= STDIN_FILE_NO
)
1980 close (STDIN_FILE_NO
);
1984 if (output_desc
!= STDOUT_FILE_NO
)
1986 close (STDOUT_FILE_NO
);
1988 close (output_desc
);
1991 /* Close the parent's descs that aren't wanted here. */
1992 if (last_pipe_input
!= STDIN_FILE_NO
)
1993 close (last_pipe_input
);
1995 /* Exec the program. */
1996 (*func
) (program
, argv
);
1997 perror_exec (program
);
2003 /* In the parent, after forking.
2004 Close the descriptors that we made for this child. */
2005 if (input_desc
!= STDIN_FILE_NO
)
2007 if (output_desc
!= STDOUT_FILE_NO
)
2008 close (output_desc
);
2010 /* Return child's process number. */
2015 #endif /* not __MSDOS__ */
2019 pexecute (search_flag
, program
, argv
, not_last
)
2025 return (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
2027 #endif /* not OS2 */
2029 /* Execute the command specified by the arguments on the current line of spec.
2030 When using pipes, this includes several piped-together commands
2031 with `|' between them.
2033 Return 0 if successful, -1 if failed. */
2039 int n_commands
; /* # of command. */
2043 char *prog
; /* program name. */
2044 char **argv
; /* vector of args. */
2045 int pid
; /* pid of process for this command. */
2048 struct command
*commands
; /* each command buffer with above info. */
2050 /* Count # of piped commands. */
2051 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2052 if (strcmp (argbuf
[i
], "|") == 0)
2055 /* Get storage for each command. */
2057 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2059 /* Split argbuf into its separate piped processes,
2060 and record info about each one.
2061 Also search for the programs that are to be run. */
2063 commands
[0].prog
= argbuf
[0]; /* first command. */
2064 commands
[0].argv
= &argbuf
[0];
2065 string
= find_a_file (&exec_prefix
, commands
[0].prog
, X_OK
);
2067 commands
[0].argv
[0] = string
;
2069 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2070 if (strcmp (argbuf
[i
], "|") == 0)
2071 { /* each command. */
2073 fatal ("-pipe not supported under MS-DOS");
2075 argbuf
[i
] = 0; /* termination of command args. */
2076 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2077 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2078 string
= find_a_file (&exec_prefix
, commands
[n_commands
].prog
, X_OK
);
2080 commands
[n_commands
].argv
[0] = string
;
2084 argbuf
[argbuf_index
] = 0;
2086 /* If -v, print what we are about to do, and maybe query. */
2090 /* Print each piped command as a separate line. */
2091 for (i
= 0; i
< n_commands
; i
++)
2095 for (j
= commands
[i
].argv
; *j
; j
++)
2096 fprintf (stderr
, " %s", *j
);
2098 /* Print a pipe symbol after all but the last command. */
2099 if (i
+ 1 != n_commands
)
2100 fprintf (stderr
, " |");
2101 fprintf (stderr
, "\n");
2105 fprintf (stderr
, "\nGo ahead? (y or n) ");
2109 while (getchar () != '\n') ;
2110 if (i
!= 'y' && i
!= 'Y')
2115 /* Run each piped subprocess. */
2117 last_pipe_input
= STDIN_FILE_NO
;
2118 for (i
= 0; i
< n_commands
; i
++)
2120 char *string
= commands
[i
].argv
[0];
2122 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2123 string
, commands
[i
].argv
,
2124 i
+ 1 < n_commands
);
2126 if (string
!= commands
[i
].prog
)
2132 /* Wait for all the subprocesses to finish.
2133 We don't care what order they finish in;
2134 we know that N_COMMANDS waits will get them all. */
2139 for (i
= 0; i
< n_commands
; i
++)
2143 char *prog
= "unknown";
2146 status
= pid
= commands
[i
].pid
;
2148 pid
= wait (&status
);
2156 for (j
= 0; j
< n_commands
; j
++)
2157 if (commands
[j
].pid
== pid
)
2158 prog
= commands
[j
].prog
;
2160 if ((status
& 0x7F) != 0)
2162 fatal ("Internal compiler error: program %s got fatal signal %d",
2163 prog
, (status
& 0x7F));
2166 if (((status
& 0xFF00) >> 8) >= MIN_FATAL_STATUS
)
2174 /* Find all the switches given to us
2175 and make a vector describing them.
2176 The elements of the vector are strings, one per switch given.
2177 If a switch uses following arguments, then the `part1' field
2178 is the switch itself and the `args' field
2179 is a null-terminated vector containing the following arguments.
2180 The `live_cond' field is 1 if the switch is true in a conditional spec,
2181 -1 if false (overridden by a later switch), and is initialized to zero.
2182 The `valid' field is nonzero if any spec has looked at this switch;
2183 if it remains zero at the end of the run, it must be meaningless. */
2193 static struct switchstr
*switches
;
2195 static int n_switches
;
2203 /* Also a vector of input files specified. */
2205 static struct infile
*infiles
;
2207 static int n_infiles
;
2209 /* And a vector of corresponding output files is made up later. */
2211 static char **outfiles
;
2213 /* Create the vector `switches' and its contents.
2214 Store its length in `n_switches'. */
2217 process_command (argc
, argv
)
2223 char *spec_lang
= 0;
2224 int last_language_n_infiles
;
2226 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2231 /* Figure compiler version from version string. */
2233 compiler_version
= save_string (version_string
, strlen (version_string
));
2234 for (temp
= compiler_version
; *temp
; ++temp
)
2243 /* Set up the default search paths. */
2245 if (gcc_exec_prefix
)
2247 add_prefix (&exec_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2248 add_prefix (&startfile_prefix
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2251 /* COMPILER_PATH and LIBRARY_PATH have values
2252 that are lists of directory names with colons. */
2254 temp
= getenv ("COMPILER_PATH");
2257 char *startp
, *endp
;
2258 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2260 startp
= endp
= temp
;
2263 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2265 strncpy (nstore
, startp
, endp
-startp
);
2268 strcpy (nstore
, "./");
2270 else if (endp
[-1] != '/')
2272 nstore
[endp
-startp
] = '/';
2273 nstore
[endp
-startp
+1] = 0;
2276 nstore
[endp
-startp
] = 0;
2277 add_prefix (&exec_prefix
, nstore
, 0, 0, NULL_PTR
);
2280 endp
= startp
= endp
+ 1;
2287 temp
= getenv ("LIBRARY_PATH");
2290 char *startp
, *endp
;
2291 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2293 startp
= endp
= temp
;
2296 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2298 strncpy (nstore
, startp
, endp
-startp
);
2301 strcpy (nstore
, "./");
2303 else if (endp
[-1] != '/')
2305 nstore
[endp
-startp
] = '/';
2306 nstore
[endp
-startp
+1] = 0;
2309 nstore
[endp
-startp
] = 0;
2310 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2313 endp
= startp
= endp
+ 1;
2320 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2321 temp
= getenv ("LPATH");
2324 char *startp
, *endp
;
2325 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2327 startp
= endp
= temp
;
2330 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2332 strncpy (nstore
, startp
, endp
-startp
);
2335 strcpy (nstore
, "./");
2337 else if (endp
[-1] != '/')
2339 nstore
[endp
-startp
] = '/';
2340 nstore
[endp
-startp
+1] = 0;
2343 nstore
[endp
-startp
] = 0;
2344 add_prefix (&startfile_prefix
, nstore
, 0, 0, NULL_PTR
);
2347 endp
= startp
= endp
+ 1;
2354 /* Convert new-style -- options to old-style. */
2355 translate_options (&argc
, &argv
);
2357 /* Scan argv twice. Here, the first time, just count how many switches
2358 there will be in their vector, and how many input files in theirs.
2359 Here we also parse the switches that cc itself uses (e.g. -v). */
2361 for (i
= 1; i
< argc
; i
++)
2363 if (! strcmp (argv
[i
], "-dumpspecs"))
2365 printf ("*asm:\n%s\n\n", asm_spec
);
2366 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2367 printf ("*cpp:\n%s\n\n", cpp_spec
);
2368 printf ("*cc1:\n%s\n\n", cc1_spec
);
2369 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2370 printf ("*endfile:\n%s\n\n", endfile_spec
);
2371 printf ("*link:\n%s\n\n", link_spec
);
2372 printf ("*lib:\n%s\n\n", lib_spec
);
2373 printf ("*startfile:\n%s\n\n", startfile_spec
);
2374 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2375 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2376 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2377 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2378 printf ("*multilib:\n%s\n\n", multilib_select
);
2382 else if (! strcmp (argv
[i
], "-dumpversion"))
2384 printf ("%s\n", version_string
);
2387 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2388 print_file_name
= "libgcc.a";
2389 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2390 print_file_name
= argv
[i
] + 17;
2391 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2392 print_prog_name
= argv
[i
] + 17;
2393 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2394 print_multi_lib
= 1;
2395 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2396 print_multi_directory
= 1;
2397 else if (! strcmp (argv
[i
], "-Xlinker"))
2399 /* Pass the argument of this option to the linker when we link. */
2402 fatal ("argument to `-Xlinker' is missing");
2405 if (!linker_options
)
2407 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2410 = (char **) xrealloc (linker_options
,
2411 n_linker_options
* sizeof (char **));
2413 linker_options
[n_linker_options
- 1] = argv
[++i
];
2415 else if (! strncmp (argv
[i
], "-Wl,", 4))
2418 /* Pass the rest of this option to the linker when we link. */
2421 if (!linker_options
)
2423 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2426 = (char **) xrealloc (linker_options
,
2427 n_linker_options
* sizeof (char **));
2429 /* Split the argument at commas. */
2431 for (j
= 4; argv
[i
][j
]; j
++)
2432 if (argv
[i
][j
] == ',')
2434 linker_options
[n_linker_options
- 1]
2435 = save_string (argv
[i
] + prev
, j
- prev
);
2438 = (char **) xrealloc (linker_options
,
2439 n_linker_options
* sizeof (char **));
2442 /* Record the part after the last comma. */
2443 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2445 else if (! strncmp (argv
[i
], "-Wa,", 4))
2448 /* Pass the rest of this option to the assembler. */
2450 n_assembler_options
++;
2451 if (!assembler_options
)
2453 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2456 = (char **) xrealloc (assembler_options
,
2457 n_assembler_options
* sizeof (char **));
2459 /* Split the argument at commas. */
2461 for (j
= 4; argv
[i
][j
]; j
++)
2462 if (argv
[i
][j
] == ',')
2464 assembler_options
[n_assembler_options
- 1]
2465 = save_string (argv
[i
] + prev
, j
- prev
);
2466 n_assembler_options
++;
2468 = (char **) xrealloc (assembler_options
,
2469 n_assembler_options
* sizeof (char **));
2472 /* Record the part after the last comma. */
2473 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2475 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2476 /* The +e options to the C++ front-end. */
2478 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2480 register char *p
= &argv
[i
][1];
2481 register int c
= *p
;
2486 if (p
[1] == 0 && i
+ 1 == argc
)
2487 fatal ("argument to `-b' is missing");
2489 spec_machine
= argv
[++i
];
2491 spec_machine
= p
+ 1;
2496 int *temp
= (int *) xmalloc (sizeof (int));
2498 if (p
[1] == 0 && i
+ 1 == argc
)
2499 fatal ("argument to `-B' is missing");
2504 add_prefix (&exec_prefix
, value
, 1, 0, temp
);
2505 add_prefix (&startfile_prefix
, value
, 1, 0, temp
);
2506 add_prefix (&include_prefix
, concat (value
, "include", ""),
2509 /* As a kludge, if the arg is "[foo/]stageN/", just add
2510 "[foo/]include" to the include prefix. */
2512 int len
= strlen (value
);
2513 if ((len
== 7 || (len
> 7 && value
[len
- 8] == '/'))
2514 && strncmp (value
+ len
- 7, "stage", 5) == 0
2515 && isdigit (value
[len
- 2])
2516 && value
[len
- 1] == '/')
2519 add_prefix (&include_prefix
, "include", 1, 0, 0);
2522 char *string
= xmalloc (len
+ 1);
2523 strncpy (string
, value
, len
-7);
2524 strcat (string
, "include");
2525 add_prefix (&include_prefix
, string
, 1, 0, 0);
2532 case 'v': /* Print our subcommands and print versions. */
2534 /* If they do anything other than exactly `-v', don't set
2535 verbose_flag; rather, continue on to give the error. */
2542 if (p
[1] == 0 && i
+ 1 == argc
)
2543 fatal ("argument to `-V' is missing");
2545 spec_version
= argv
[++i
];
2547 spec_version
= p
+ 1;
2548 compiler_version
= spec_version
;
2552 if (!strcmp (p
, "save-temps"))
2554 save_temps_flag
= 1;
2561 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2562 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2563 else if (WORD_SWITCH_TAKES_ARG (p
))
2564 i
+= WORD_SWITCH_TAKES_ARG (p
);
2571 /* Set up the search paths before we go looking for config files. */
2573 /* These come before the md prefixes so that we will find gcc's subcommands
2574 (such as cpp) rather than those of the host system. */
2575 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2576 as well as trying the machine and the version. */
2577 add_prefix (&exec_prefix
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2578 add_prefix (&exec_prefix
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2580 add_prefix (&startfile_prefix
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2581 add_prefix (&startfile_prefix
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2583 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
, "/");
2585 /* If tooldir is relative, base it on exec_prefix. A relative
2586 tooldir lets us move the installed tree as a unit.
2588 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2589 directories, so that we can search both the user specified directory
2590 and the standard place. */
2592 if (*tooldir_prefix
!= '/')
2594 if (gcc_exec_prefix
)
2596 char *gcc_exec_tooldir_prefix
2597 = concat (concat (gcc_exec_prefix
, spec_machine
, "/"),
2598 concat (spec_version
, "/", tooldir_prefix
),
2601 add_prefix (&exec_prefix
, concat (gcc_exec_tooldir_prefix
, "bin", "/"),
2603 add_prefix (&startfile_prefix
, concat (gcc_exec_tooldir_prefix
, "lib", "/"),
2607 tooldir_prefix
= concat (concat (standard_exec_prefix
, spec_machine
, "/"),
2608 concat (spec_version
, "/", tooldir_prefix
),
2612 add_prefix (&exec_prefix
, concat (tooldir_prefix
, "bin", "/"),
2614 add_prefix (&startfile_prefix
, concat (tooldir_prefix
, "lib", "/"),
2617 /* More prefixes are enabled in main, after we read the specs file
2618 and determine whether this is cross-compilation or not. */
2621 /* Then create the space for the vectors and scan again. */
2623 switches
= ((struct switchstr
*)
2624 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2625 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2628 last_language_n_infiles
= -1;
2630 /* This, time, copy the text of each switch and store a pointer
2631 to the copy in the vector of switches.
2632 Store all the infiles in their vector. */
2634 for (i
= 1; i
< argc
; i
++)
2636 /* Just skip the switches that were handled by the preceding loop. */
2637 if (!strcmp (argv
[i
], "-Xlinker"))
2639 else if (! strncmp (argv
[i
], "-Wl,", 4))
2641 else if (! strncmp (argv
[i
], "-Wa,", 4))
2643 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2645 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2647 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2649 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2651 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2653 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2655 /* Compensate for the +e options to the C++ front-end;
2656 they're there simply for cfront call-compatibility. We do
2657 some magic in default_compilers to pass them down properly.
2658 Note we deliberately start at the `+' here, to avoid passing
2659 -e0 or -e1 down into the linker. */
2660 switches
[n_switches
].part1
= &argv
[i
][0];
2661 switches
[n_switches
].args
= 0;
2662 switches
[n_switches
].live_cond
= 0;
2663 switches
[n_switches
].valid
= 0;
2666 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2668 register char *p
= &argv
[i
][1];
2669 register int c
= *p
;
2671 if (c
== 'B' || c
== 'b' || c
== 'V')
2673 /* Skip a separate arg, if any. */
2680 if (p
[1] == 0 && i
+ 1 == argc
)
2681 fatal ("argument to `-x' is missing");
2683 spec_lang
= argv
[++i
];
2686 if (! strcmp (spec_lang
, "none"))
2687 /* Suppress the warning if -xnone comes after the last input file,
2688 because alternate command interfaces like g++ might find it
2689 useful to place -xnone after each input file. */
2692 last_language_n_infiles
= n_infiles
;
2695 switches
[n_switches
].part1
= p
;
2696 /* Deal with option arguments in separate argv elements. */
2697 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2698 || WORD_SWITCH_TAKES_ARG (p
))
2701 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2705 /* Count only the option arguments in separate argv elements. */
2706 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2708 if (i
+ n_args
>= argc
)
2709 fatal ("argument to `-%s' is missing", p
);
2710 switches
[n_switches
].args
2711 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2713 switches
[n_switches
].args
[j
++] = argv
[++i
];
2714 /* Null-terminate the vector. */
2715 switches
[n_switches
].args
[j
] = 0;
2717 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2719 /* On some systems, ld cannot handle -o or -L without space.
2720 So split the -o or -L from its argument. */
2721 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2722 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2723 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2724 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2725 switches
[n_switches
].args
[1] = 0;
2728 switches
[n_switches
].args
= 0;
2730 switches
[n_switches
].live_cond
= 0;
2731 switches
[n_switches
].valid
= 0;
2732 /* This is always valid, since gcc.c itself understands it. */
2733 if (!strcmp (p
, "save-temps"))
2734 switches
[n_switches
].valid
= 1;
2739 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2740 && strcmp (argv
[i
], "-")
2741 && access (argv
[i
], R_OK
) < 0)
2743 perror_with_name (argv
[i
]);
2748 infiles
[n_infiles
].language
= spec_lang
;
2749 infiles
[n_infiles
++].name
= argv
[i
];
2754 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2755 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2757 switches
[n_switches
].part1
= 0;
2758 infiles
[n_infiles
].name
= 0;
2760 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2761 if (gcc_exec_prefix
)
2763 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2764 + strlen (spec_machine
) + 3);
2765 strcpy (temp
, gcc_exec_prefix
);
2766 strcat (temp
, spec_machine
);
2768 strcat (temp
, spec_version
);
2770 gcc_exec_prefix
= temp
;
2774 /* Process a spec string, accumulating and running commands. */
2776 /* These variables describe the input file name.
2777 input_file_number is the index on outfiles of this file,
2778 so that the output file name can be stored for later use by %o.
2779 input_basename is the start of the part of the input file
2780 sans all directory names, and basename_length is the number
2781 of characters starting there excluding the suffix .c or whatever. */
2783 static char *input_filename
;
2784 static int input_file_number
;
2785 static int input_filename_length
;
2786 static int basename_length
;
2787 static char *input_basename
;
2788 static char *input_suffix
;
2790 /* These are variables used within do_spec and do_spec_1. */
2792 /* Nonzero if an arg has been started and not yet terminated
2793 (with space, tab or newline). */
2794 static int arg_going
;
2796 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2797 is a temporary file name. */
2798 static int delete_this_arg
;
2800 /* Nonzero means %w has been seen; the next arg to be terminated
2801 is the output file name of this compilation. */
2802 static int this_is_output_file
;
2804 /* Nonzero means %s has been seen; the next arg to be terminated
2805 is the name of a library file and we should try the standard
2806 search dirs for it. */
2807 static int this_is_library_file
;
2809 /* Nonzero means that the input of this command is coming from a pipe. */
2810 static int input_from_pipe
;
2812 /* Process the spec SPEC and run the commands specified therein.
2813 Returns 0 if the spec is successfully processed; -1 if failed. */
2823 delete_this_arg
= 0;
2824 this_is_output_file
= 0;
2825 this_is_library_file
= 0;
2826 input_from_pipe
= 0;
2828 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2830 /* Force out any unfinished command.
2831 If -pipe, this forces out the last command if it ended in `|'. */
2834 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2837 if (argbuf_index
> 0)
2844 /* Process the sub-spec SPEC as a portion of a larger spec.
2845 This is like processing a whole spec except that we do
2846 not initialize at the beginning and we do not supply a
2847 newline by default at the end.
2848 INSWITCH nonzero means don't process %-sequences in SPEC;
2849 in this case, % is treated as an ordinary character.
2850 This is used while substituting switches.
2851 INSWITCH nonzero also causes SPC not to terminate an argument.
2853 Value is zero unless a line was finished
2854 and the command on that line reported an error. */
2857 do_spec_1 (spec
, inswitch
, soft_matched_part
)
2860 char *soft_matched_part
;
2862 register char *p
= spec
;
2869 /* If substituting a switch, treat all chars like letters.
2870 Otherwise, NL, SPC, TAB and % are special. */
2871 switch (inswitch
? 'a' : c
)
2874 /* End of line: finish any pending argument,
2875 then run the pending command if one has been started. */
2878 obstack_1grow (&obstack
, 0);
2879 string
= obstack_finish (&obstack
);
2880 if (this_is_library_file
)
2881 string
= find_file (string
);
2882 store_arg (string
, delete_this_arg
, this_is_output_file
);
2883 if (this_is_output_file
)
2884 outfiles
[input_file_number
] = string
;
2888 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2891 for (i
= 0; i
< n_switches
; i
++)
2892 if (!strcmp (switches
[i
].part1
, "pipe"))
2895 /* A `|' before the newline means use a pipe here,
2896 but only if -pipe was specified.
2897 Otherwise, execute now and don't pass the `|' as an arg. */
2900 input_from_pipe
= 1;
2901 switches
[i
].valid
= 1;
2908 if (argbuf_index
> 0)
2914 /* Reinitialize for a new command, and for a new argument. */
2917 delete_this_arg
= 0;
2918 this_is_output_file
= 0;
2919 this_is_library_file
= 0;
2920 input_from_pipe
= 0;
2924 /* End any pending argument. */
2927 obstack_1grow (&obstack
, 0);
2928 string
= obstack_finish (&obstack
);
2929 if (this_is_library_file
)
2930 string
= find_file (string
);
2931 store_arg (string
, delete_this_arg
, this_is_output_file
);
2932 if (this_is_output_file
)
2933 outfiles
[input_file_number
] = string
;
2937 obstack_1grow (&obstack
, c
);
2943 /* Space or tab ends an argument if one is pending. */
2946 obstack_1grow (&obstack
, 0);
2947 string
= obstack_finish (&obstack
);
2948 if (this_is_library_file
)
2949 string
= find_file (string
);
2950 store_arg (string
, delete_this_arg
, this_is_output_file
);
2951 if (this_is_output_file
)
2952 outfiles
[input_file_number
] = string
;
2954 /* Reinitialize for a new argument. */
2956 delete_this_arg
= 0;
2957 this_is_output_file
= 0;
2958 this_is_library_file
= 0;
2965 fatal ("Invalid specification! Bug in cc.");
2968 obstack_grow (&obstack
, input_basename
, basename_length
);
2973 delete_this_arg
= 2;
2976 /* Dump out the directories specified with LIBRARY_PATH,
2977 followed by the absolute directories
2978 that we search for startfiles. */
2981 struct prefix_list
*pl
= startfile_prefix
.plist
;
2983 char *buffer
= (char *) xmalloc (bufsize
);
2986 for (; pl
; pl
= pl
->next
)
2988 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2989 /* Used on systems which record the specified -L dirs
2990 and use them to search for dynamic linking. */
2991 /* Relative directories always come from -B,
2992 and it is better not to use them for searching
2993 at run time. In particular, stage1 loses */
2994 if (pl
->prefix
[0] != '/')
2997 /* Try subdirectory if there is one. */
2998 if (multilib_dir
!= NULL
)
3002 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3004 bufsize
= (strlen (pl
->prefix
)
3005 + strlen (machine_suffix
)) * 2 + 1;
3006 buffer
= (char *) xrealloc (buffer
, bufsize
);
3007 strcpy (buffer
, pl
->prefix
);
3008 strcat (buffer
, machine_suffix
);
3009 if (is_directory (buffer
, multilib_dir
, 1))
3011 do_spec_1 ("-L", 0, NULL_PTR
);
3012 #ifdef SPACE_AFTER_L_OPTION
3013 do_spec_1 (" ", 0, NULL_PTR
);
3015 do_spec_1 (buffer
, 1, NULL_PTR
);
3016 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3017 /* Make this a separate argument. */
3018 do_spec_1 (" ", 0, NULL_PTR
);
3021 if (!pl
->require_machine_suffix
)
3023 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3025 do_spec_1 ("-L", 0, NULL_PTR
);
3026 #ifdef SPACE_AFTER_L_OPTION
3027 do_spec_1 (" ", 0, NULL_PTR
);
3029 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3030 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3031 /* Make this a separate argument. */
3032 do_spec_1 (" ", 0, NULL_PTR
);
3038 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3040 do_spec_1 ("-L", 0, NULL_PTR
);
3041 #ifdef SPACE_AFTER_L_OPTION
3042 do_spec_1 (" ", 0, NULL_PTR
);
3044 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3045 /* Remove slash from machine_suffix. */
3046 if (strlen (machine_suffix
) >= bufsize
)
3047 bufsize
= strlen (machine_suffix
) * 2 + 1;
3048 buffer
= (char *) xrealloc (buffer
, bufsize
);
3049 strcpy (buffer
, machine_suffix
);
3050 idx
= strlen (buffer
);
3051 if (buffer
[idx
- 1] == '/')
3052 buffer
[idx
- 1] = 0;
3053 do_spec_1 (buffer
, 1, NULL_PTR
);
3054 /* Make this a separate argument. */
3055 do_spec_1 (" ", 0, NULL_PTR
);
3058 if (!pl
->require_machine_suffix
)
3060 if (is_directory (pl
->prefix
, "", 1))
3062 do_spec_1 ("-L", 0, NULL_PTR
);
3063 #ifdef SPACE_AFTER_L_OPTION
3064 do_spec_1 (" ", 0, NULL_PTR
);
3066 /* Remove slash from pl->prefix. */
3067 if (strlen (pl
->prefix
) >= bufsize
)
3068 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3069 buffer
= (char *) xrealloc (buffer
, bufsize
);
3070 strcpy (buffer
, pl
->prefix
);
3071 idx
= strlen (buffer
);
3072 if (buffer
[idx
- 1] == '/')
3073 buffer
[idx
- 1] = 0;
3074 do_spec_1 (buffer
, 1, NULL_PTR
);
3075 /* Make this a separate argument. */
3076 do_spec_1 (" ", 0, NULL_PTR
);
3085 /* {...:%efoo} means report an error with `foo' as error message
3086 and don't execute any more commands for this file. */
3090 while (*p
!= 0 && *p
!= '\n') p
++;
3091 buf
= (char *) alloca (p
- q
+ 1);
3092 strncpy (buf
, q
, p
- q
);
3102 if (save_temps_flag
)
3104 obstack_grow (&obstack
, input_basename
, basename_length
);
3105 delete_this_arg
= 0;
3109 #ifdef MKTEMP_EACH_FILE
3110 /* ??? This has a problem: the total number of
3111 values mktemp can return is limited.
3112 That matters for the names of object files.
3113 In 2.4, do something about that. */
3114 struct temp_name
*t
;
3116 while (*p
== '.' || isalpha (*p
))
3119 /* See if we already have an association of %g/%u/%U and
3121 for (t
= temp_names
; t
; t
= t
->next
)
3122 if (t
->length
== p
- suffix
3123 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3124 && t
->unique
== (c
!= 'g'))
3127 /* Make a new association if needed. %u requires one. */
3128 if (t
== 0 || c
== 'u')
3132 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3133 t
->next
= temp_names
;
3136 t
->length
= p
- suffix
;
3137 t
->suffix
= save_string (suffix
, p
- suffix
);
3138 t
->unique
= (c
!= 'g');
3139 choose_temp_base ();
3140 t
->filename
= temp_filename
;
3141 t
->filename_length
= temp_filename_length
;
3144 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3145 delete_this_arg
= 1;
3147 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3148 if (c
== 'u' || c
== 'U')
3154 sprintf (buff
, "%d", unique
);
3155 obstack_grow (&obstack
, buff
, strlen (buff
));
3158 delete_this_arg
= 1;
3164 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3170 struct prefix_list
*pl
= include_prefix
.plist
;
3172 if (gcc_exec_prefix
)
3174 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3175 /* Make this a separate argument. */
3176 do_spec_1 (" ", 0, NULL_PTR
);
3177 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3178 do_spec_1 (" ", 0, NULL_PTR
);
3181 for (; pl
; pl
= pl
->next
)
3183 do_spec_1 ("-isystem", 1, NULL_PTR
);
3184 /* Make this a separate argument. */
3185 do_spec_1 (" ", 0, NULL_PTR
);
3186 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3187 do_spec_1 (" ", 0, NULL_PTR
);
3195 for (f
= 0; f
< n_infiles
; f
++)
3196 store_arg (outfiles
[f
], 0, 0);
3201 this_is_library_file
= 1;
3205 this_is_output_file
= 1;
3210 int index
= argbuf_index
;
3211 /* Handle the {...} following the %W. */
3214 p
= handle_braces (p
+ 1);
3217 /* If any args were output, mark the last one for deletion
3219 if (argbuf_index
!= index
)
3220 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3224 /* %x{OPTION} records OPTION for %X to output. */
3230 /* Skip past the option value and make a copy. */
3235 string
= save_string (p1
+ 1, p
- p1
- 2);
3237 /* See if we already recorded this option. */
3238 for (i
= 0; i
< n_linker_options
; i
++)
3239 if (! strcmp (string
, linker_options
[i
]))
3245 /* This option is new; add it. */
3247 if (!linker_options
)
3249 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3252 = (char **) xrealloc (linker_options
,
3253 n_linker_options
* sizeof (char **));
3255 linker_options
[n_linker_options
- 1] = string
;
3259 /* Dump out the options accumulated previously using %x,
3260 -Xlinker and -Wl,. */
3262 for (i
= 0; i
< n_linker_options
; i
++)
3264 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3265 /* Make each accumulated option a separate argument. */
3266 do_spec_1 (" ", 0, NULL_PTR
);
3270 /* Dump out the options accumulated previously using -Wa,. */
3272 for (i
= 0; i
< n_assembler_options
; i
++)
3274 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3275 /* Make each accumulated option a separate argument. */
3276 do_spec_1 (" ", 0, NULL_PTR
);
3280 /* Here are digits and numbers that just process
3281 a certain constant string as a spec. */
3284 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3290 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3296 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3302 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3308 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3314 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3320 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3326 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3332 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3339 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3343 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3347 if (! strncmp (y
, "-D", 2))
3348 /* Copy the whole option. */
3349 while (*y
&& *y
!= ' ' && *y
!= '\t')
3351 else if (*y
== ' ' || *y
== '\t')
3352 /* Copy whitespace to the result. */
3354 /* Don't copy other options. */
3361 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3369 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3373 /* Copy all of CPP_PREDEFINES into BUF,
3374 but put __ after every -D and at the end of each arg. */
3378 if (! strncmp (y
, "-D", 2))
3386 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3388 /* Stick __ at front of macro name. */
3391 /* Arrange to stick __ at the end as well. */
3395 /* Copy the macro name. */
3396 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3405 /* Copy the value given, if any. */
3406 while (*y
&& *y
!= ' ' && *y
!= '\t')
3409 else if (*y
== ' ' || *y
== '\t')
3410 /* Copy whitespace to the result. */
3412 /* Don't copy -A options */
3418 /* Copy all of CPP_PREDEFINES into BUF,
3419 but put __ after every -D. */
3423 if (! strncmp (y
, "-D", 2))
3428 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3430 /* Stick -D__ at front of macro name. */
3436 /* Copy the macro name. */
3437 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3440 /* Copy the value given, if any. */
3441 while (*y
&& *y
!= ' ' && *y
!= '\t')
3446 /* Do not copy this macro - we have just done it before */
3447 while (*y
&& *y
!= ' ' && *y
!= '\t')
3451 else if (*y
== ' ' || *y
== '\t')
3452 /* Copy whitespace to the result. */
3454 /* Don't copy -A options */
3460 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3464 if (! strncmp (y
, "-A", 2))
3465 /* Copy the whole option. */
3466 while (*y
&& *y
!= ' ' && *y
!= '\t')
3468 else if (*y
== ' ' || *y
== '\t')
3469 /* Copy whitespace to the result. */
3471 /* Don't copy other options. */
3478 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3485 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3490 /* Here we define characters other than letters and digits. */
3493 p
= handle_braces (p
);
3499 obstack_1grow (&obstack
, '%');
3503 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3504 do_spec_1 (" ", 0, NULL_PTR
);
3507 /* Process a string found as the value of a spec given by name.
3508 This feature allows individual machine descriptions
3509 to add and use their own specs.
3510 %[...] modifies -D options the way %P does;
3511 %(...) uses the spec unmodified. */
3516 struct spec_list
*sl
;
3519 /* The string after the S/P is the name of a spec that is to be
3521 while (*p
&& *p
!= ')' && *p
!= ']')
3524 /* See if it's in the list */
3525 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3526 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3536 value
= do_spec_1 (name
, 0, NULL_PTR
);
3542 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3546 /* Copy all of NAME into BUF, but put __ after
3547 every -D and at the end of each arg, */
3550 if (! strncmp (y
, "-D", 2))
3558 else if (*y
== ' ' || *y
== 0)
3572 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3578 /* Discard the closing paren or bracket. */
3586 int c1
= *p
++; /* Select first or second version number. */
3587 char *v
= compiler_version
;
3589 /* If desired, advance to second version number. */
3592 /* Set P after the first period. */
3593 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3598 /* Set Q at the next period or at the end. */
3600 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3602 /* Empty string means zero. */
3608 /* Put that part into the command. */
3609 obstack_grow (&obstack
, v
, q
- v
);
3615 if (input_from_pipe
)
3616 do_spec_1 ("-", 0, NULL_PTR
);
3625 /* Backslash: treat next character as ordinary. */
3630 /* Ordinary character: put it into the current argument. */
3631 obstack_1grow (&obstack
, c
);
3635 return 0; /* End of string */
3638 /* Return 0 if we call do_spec_1 and that returns -1. */
3651 /* A `|' after the open-brace means,
3652 if the test fails, output a single minus sign rather than nothing.
3653 This is used in %{|!pipe:...}. */
3657 /* A `!' after the open-brace negates the condition:
3658 succeed if the specified switch is not present. */
3662 /* A `.' after the open-brace means test against the current suffix. */
3672 while (*p
!= ':' && *p
!= '}') p
++;
3675 register int count
= 1;
3693 int found
= (input_suffix
!= 0
3694 && strlen (input_suffix
) == p
- filter
3695 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3701 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3706 else if (p
[-1] == '*' && p
[0] == '}')
3708 /* Substitute all matching switches as separate args. */
3711 for (i
= 0; i
< n_switches
; i
++)
3712 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3713 && check_live_switch (i
, p
- filter
))
3718 /* Test for presence of the specified switch. */
3722 /* If name specified ends in *, as in {x*:...},
3723 check for %* and handle that case. */
3724 if (p
[-1] == '*' && !negate
)
3729 /* First see whether we have %*. */
3733 if (*r
== '%' && r
[1] == '*')
3737 /* If we do, handle that case. */
3740 /* Substitute all matching switches as separate args.
3741 But do this by substituting for %*
3742 in the text that follows the colon. */
3744 unsigned hard_match_len
= p
- filter
- 1;
3745 char *string
= save_string (p
+ 1, q
- p
- 2);
3747 for (i
= 0; i
< n_switches
; i
++)
3748 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3749 && check_live_switch (i
, -1))
3751 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3752 /* Pass any arguments this switch has. */
3760 /* If name specified ends in *, as in {x*:...},
3761 check for presence of any switch name starting with x. */
3764 for (i
= 0; i
< n_switches
; i
++)
3766 unsigned hard_match_len
= p
- filter
- 1;
3768 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3769 && check_live_switch (i
, hard_match_len
))
3775 /* Otherwise, check for presence of exact name specified. */
3778 for (i
= 0; i
< n_switches
; i
++)
3780 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3781 && switches
[i
].part1
[p
- filter
] == 0
3782 && check_live_switch (i
, -1))
3790 /* If it is as desired (present for %{s...}, absent for %{-s...})
3791 then substitute either the switch or the specified
3792 conditional text. */
3793 if (present
!= negate
)
3801 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3807 /* Here if a %{|...} conditional fails: output a minus sign,
3808 which means "standard output" or "standard input". */
3809 do_spec_1 ("-", 0, NULL_PTR
);
3816 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3817 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3818 spec, or -1 if either exact match or %* is used.
3820 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3821 whose value does not begin with "no-" is obsoleted by the same value
3822 with the "no-", similarly for a switch with the "no-" prefix. */
3825 check_live_switch (switchnum
, prefix_length
)
3829 char *name
= switches
[switchnum
].part1
;
3832 /* In the common case of {<at-most-one-letter>*}, a negating
3833 switch would always match, so ignore that case. We will just
3834 send the conflicting switches to the compiler phase. */
3835 if (prefix_length
>= 0 && prefix_length
<= 1)
3838 /* If we already processed this switch and determined if it was
3839 live or not, return our past determination. */
3840 if (switches
[switchnum
].live_cond
!= 0)
3841 return switches
[switchnum
].live_cond
> 0;
3843 /* Now search for duplicate in a manner that depends on the name. */
3847 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3848 if (switches
[i
].part1
[0] == 'O')
3850 switches
[switchnum
].valid
= 1;
3851 switches
[switchnum
].live_cond
= -1;
3856 case 'W': case 'f': case 'm':
3857 if (! strncmp (name
+ 1, "no-", 3))
3859 /* We have Xno-YYY, search for XYYY. */
3860 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3861 if (switches
[i
].part1
[0] == name
[0]
3862 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
3864 switches
[switchnum
].valid
= 1;
3865 switches
[switchnum
].live_cond
= -1;
3871 /* We have XYYY, search for Xno-YYY. */
3872 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3873 if (switches
[i
].part1
[0] == name
[0]
3874 && switches
[i
].part1
[1] == 'n'
3875 && switches
[i
].part1
[2] == 'o'
3876 && switches
[i
].part1
[3] == '-'
3877 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
3879 switches
[switchnum
].valid
= 1;
3880 switches
[switchnum
].live_cond
= -1;
3887 /* Otherwise the switch is live. */
3888 switches
[switchnum
].live_cond
= 1;
3892 /* Pass a switch to the current accumulating command
3893 in the same form that we received it.
3894 SWITCHNUM identifies the switch; it is an index into
3895 the vector of switches gcc received, which is `switches'.
3896 This cannot fail since it never finishes a command line.
3898 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3901 give_switch (switchnum
, omit_first_word
)
3903 int omit_first_word
;
3905 if (!omit_first_word
)
3907 do_spec_1 ("-", 0, NULL_PTR
);
3908 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
3910 do_spec_1 (" ", 0, NULL_PTR
);
3911 if (switches
[switchnum
].args
!= 0)
3914 for (p
= switches
[switchnum
].args
; *p
; p
++)
3916 do_spec_1 (*p
, 1, NULL_PTR
);
3917 do_spec_1 (" ", 0, NULL_PTR
);
3920 switches
[switchnum
].valid
= 1;
3923 /* Search for a file named NAME trying various prefixes including the
3924 user's -B prefix and some standard ones.
3925 Return the absolute file name found. If nothing is found, return NAME. */
3933 /* Try multilib_dir if it is defined. */
3934 if (multilib_dir
!= NULL
)
3938 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
3939 strcpy (try, multilib_dir
);
3943 newname
= find_a_file (&startfile_prefix
, try, R_OK
);
3945 /* If we don't find it in the multi library dir, then fall
3946 through and look for it in the normal places. */
3947 if (newname
!= NULL
)
3951 newname
= find_a_file (&startfile_prefix
, name
, R_OK
);
3952 return newname
? newname
: name
;
3955 /* Determine whether a directory exists. If LINKER, return 0 for
3956 certain fixed names not needed by the linker. If not LINKER, it is
3957 only important to return 0 if the host machine has a small ARG_MAX
3961 is_directory (path1
, path2
, linker
)
3966 int len1
= strlen (path1
);
3967 int len2
= strlen (path2
);
3968 char *path
= (char *) alloca (3 + len1
+ len2
);
3972 #ifndef SMALL_ARG_MAX
3977 /* Construct the path from the two parts. Ensure the string ends with "/.".
3978 The resulting path will be a directory even if the given path is a
3980 bcopy (path1
, path
, len1
);
3981 bcopy (path2
, path
+ len1
, len2
);
3982 cp
= path
+ len1
+ len2
;
3988 /* Exclude directories that the linker is known to search. */
3990 && ((cp
- path
== 6 && strcmp (path
, "/lib/.") == 0)
3991 || (cp
- path
== 10 && strcmp (path
, "/usr/lib/.") == 0)))
3994 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
3997 /* On fatal signals, delete all the temporary files. */
4000 fatal_error (signum
)
4003 signal (signum
, SIG_DFL
);
4004 delete_failure_queue ();
4005 delete_temp_files ();
4006 /* Get the same signal again, this time not handled,
4007 so its normal effect occurs. */
4008 kill (getpid (), signum
);
4019 int linker_was_run
= 0;
4020 char *explicit_link_files
;
4024 p
= argv
[0] + strlen (argv
[0]);
4025 while (p
!= argv
[0] && p
[-1] != '/') --p
;
4028 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4029 signal (SIGINT
, fatal_error
);
4031 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4032 signal (SIGHUP
, fatal_error
);
4034 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4035 signal (SIGTERM
, fatal_error
);
4037 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4038 signal (SIGPIPE
, fatal_error
);
4042 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4044 obstack_init (&obstack
);
4046 /* Set up to remember the pathname of gcc and any options
4047 needed for collect. We use argv[0] instead of programname because
4048 we need the complete pathname. */
4049 obstack_init (&collect_obstack
);
4050 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4051 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4052 putenv (obstack_finish (&collect_obstack
));
4054 /* Choose directory for temp files. */
4056 choose_temp_base ();
4058 /* Make a table of what switches there are (switches, n_switches).
4059 Make a table of specified input files (infiles, n_infiles).
4060 Decode switches that are handled locally. */
4062 process_command (argc
, argv
);
4064 /* Initialize the vector of specs to just the default.
4065 This means one element containing 0s, as a terminator. */
4067 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4068 bcopy ((char *) default_compilers
, (char *) compilers
,
4069 sizeof default_compilers
);
4070 n_compilers
= n_default_compilers
;
4072 /* Read specs from a file if there is one. */
4074 machine_suffix
= concat (spec_machine
, "/", concat (spec_version
, "/", ""));
4075 just_machine_suffix
= concat (spec_machine
, "/", "");
4077 specs_file
= find_a_file (&startfile_prefix
, "specs", R_OK
);
4078 /* Read the specs file unless it is a default one. */
4079 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4080 read_specs (specs_file
);
4082 /* If not cross-compiling, look for startfiles in the standard places. */
4083 /* The fact that these are done here, after reading the specs file,
4084 means that it cannot be found in these directories.
4085 But that's okay. It should never be there anyway. */
4088 #ifdef MD_EXEC_PREFIX
4089 add_prefix (&exec_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
4090 add_prefix (&startfile_prefix
, md_exec_prefix
, 0, 0, NULL_PTR
);
4093 #ifdef MD_STARTFILE_PREFIX
4094 add_prefix (&startfile_prefix
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4097 #ifdef MD_STARTFILE_PREFIX_1
4098 add_prefix (&startfile_prefix
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4101 /* If standard_startfile_prefix is relative, base it on
4102 standard_exec_prefix. This lets us move the installed tree
4103 as a unit. If GCC_EXEC_PREFIX is defined, base
4104 standard_startfile_prefix on that as well. */
4105 if (*standard_startfile_prefix
== '/')
4106 add_prefix (&startfile_prefix
, standard_startfile_prefix
, 0, 0,
4110 if (gcc_exec_prefix
)
4111 add_prefix (&startfile_prefix
,
4112 concat (gcc_exec_prefix
,
4113 standard_startfile_prefix
,
4116 add_prefix (&startfile_prefix
,
4117 concat (standard_exec_prefix
,
4119 standard_startfile_prefix
),
4123 add_prefix (&startfile_prefix
, standard_startfile_prefix_1
, 0, 0,
4125 add_prefix (&startfile_prefix
, standard_startfile_prefix_2
, 0, 0,
4127 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4128 add_prefix (&startfile_prefix
, "./", 0, 1, NULL_PTR
);
4132 /* Now we have the specs.
4133 Set the `valid' bits for switches that match anything in any spec. */
4135 validate_all_switches ();
4137 /* Now that we have the switches and the specs, set
4138 the subdirectory based on the options. */
4139 set_multilib_dir ();
4141 /* Warn about any switches that no pass was interested in. */
4143 for (i
= 0; i
< n_switches
; i
++)
4144 if (! switches
[i
].valid
)
4145 error ("unrecognized option `-%s'", switches
[i
].part1
);
4147 /* Obey some of the options. */
4149 if (print_file_name
)
4151 printf ("%s\n", find_file (print_file_name
));
4155 if (print_prog_name
)
4157 char *newname
= find_a_file (&exec_prefix
, print_prog_name
, X_OK
);
4158 printf ("%s\n", (newname
? newname
: print_prog_name
));
4162 if (print_multi_lib
)
4164 print_multilib_info ();
4168 if (print_multi_directory
)
4170 if (multilib_dir
== NULL
)
4173 printf ("%s\n", multilib_dir
);
4179 fprintf (stderr
, "gcc version %s\n", version_string
);
4185 fatal ("No input files");
4187 /* Make a place to record the compiler output file names
4188 that correspond to the input files. */
4190 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4191 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4193 /* Record which files were specified explicitly as link input. */
4195 explicit_link_files
= xmalloc (n_infiles
);
4196 bzero (explicit_link_files
, n_infiles
);
4198 for (i
= 0; i
< n_infiles
; i
++)
4200 register struct compiler
*cp
= 0;
4201 int this_file_error
= 0;
4203 /* Tell do_spec what to substitute for %i. */
4205 input_filename
= infiles
[i
].name
;
4206 input_filename_length
= strlen (input_filename
);
4207 input_file_number
= i
;
4209 /* Use the same thing in %o, unless cp->spec says otherwise. */
4211 outfiles
[i
] = input_filename
;
4213 /* Figure out which compiler from the file's suffix. */
4215 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4216 infiles
[i
].language
);
4220 /* Ok, we found an applicable compiler. Run its spec. */
4221 /* First say how much of input_filename to substitute for %b */
4225 input_basename
= input_filename
;
4226 for (p
= input_filename
; *p
; p
++)
4228 input_basename
= p
+ 1;
4230 /* Find a suffix starting with the last period,
4231 and set basename_length to exclude that suffix. */
4232 basename_length
= strlen (input_basename
);
4233 p
= input_basename
+ basename_length
;
4234 while (p
!= input_basename
&& *p
!= '.') --p
;
4235 if (*p
== '.' && p
!= input_basename
)
4237 basename_length
= p
- input_basename
;
4238 input_suffix
= p
+ 1;
4244 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4246 len
+= strlen (cp
->spec
[j
]);
4248 p
= (char *) xmalloc (len
+ 1);
4251 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4254 strcpy (p
+ len
, cp
->spec
[j
]);
4255 len
+= strlen (cp
->spec
[j
]);
4258 value
= do_spec (p
);
4261 this_file_error
= 1;
4264 /* If this file's name does not contain a recognized suffix,
4265 record it as explicit linker input. */
4268 explicit_link_files
[i
] = 1;
4270 /* Clear the delete-on-failure queue, deleting the files in it
4271 if this compilation failed. */
4273 if (this_file_error
)
4275 delete_failure_queue ();
4278 /* If this compilation succeeded, don't delete those files later. */
4279 clear_failure_queue ();
4282 /* Run ld to link all the compiler output files. */
4284 if (error_count
== 0)
4286 int tmp
= execution_count
;
4290 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4292 putenv_from_prefixes (&exec_prefix
, "COMPILER_PATH=");
4293 putenv_from_prefixes (&startfile_prefix
, "LIBRARY_PATH=");
4295 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4297 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4298 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4301 for (i
= 0; i
< n_switches
; i
++)
4305 obstack_grow (&collect_obstack
, " ", 1);
4308 obstack_grow (&collect_obstack
, "-", 1);
4309 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4310 strlen (switches
[i
].part1
));
4312 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4314 obstack_grow (&collect_obstack
, " ", 1);
4315 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4318 obstack_grow (&collect_obstack
, "\0", 1);
4319 putenv (obstack_finish (&collect_obstack
));
4321 value
= do_spec (link_command_spec
);
4324 linker_was_run
= (tmp
!= execution_count
);
4327 /* Warn if a -B option was specified but the prefix was never used. */
4328 unused_prefix_warnings (&exec_prefix
);
4329 unused_prefix_warnings (&startfile_prefix
);
4331 /* If options said don't run linker,
4332 complain about input files to be given to the linker. */
4334 if (! linker_was_run
&& error_count
== 0)
4335 for (i
= 0; i
< n_infiles
; i
++)
4336 if (explicit_link_files
[i
])
4337 error ("%s: linker input file unused since linking not done",
4340 /* Delete some or all of the temporary files we made. */
4343 delete_failure_queue ();
4344 delete_temp_files ();
4346 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4351 /* Find the proper compilation spec for the file name NAME,
4352 whose length is LENGTH. LANGUAGE is the specified language,
4353 or 0 if none specified. */
4355 static struct compiler
*
4356 lookup_compiler (name
, length
, language
)
4361 struct compiler
*cp
;
4363 /* Look for the language, if one is spec'd. */
4366 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4370 if (cp
->suffix
[0] == '@'
4371 && !strcmp (cp
->suffix
+ 1, language
))
4375 error ("language %s not recognized", language
);
4378 /* Look for a suffix. */
4379 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4381 if (/* The suffix `-' matches only the file name `-'. */
4382 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4384 (strlen (cp
->suffix
) < length
4385 /* See if the suffix matches the end of NAME. */
4386 && !strcmp (cp
->suffix
,
4387 name
+ length
- strlen (cp
->suffix
))))
4389 if (cp
->spec
[0][0] == '@')
4391 struct compiler
*new;
4392 /* An alias entry maps a suffix to a language.
4393 Search for the language; pass 0 for NAME and LENGTH
4394 to avoid infinite recursion if language not found.
4395 Construct the new compiler spec. */
4396 language
= cp
->spec
[0] + 1;
4397 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4398 new->suffix
= cp
->suffix
;
4399 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4400 (char *) new->spec
, sizeof new->spec
);
4403 /* A non-alias entry: return it. */
4415 register char *value
= (char *) malloc (size
);
4417 fatal ("virtual memory exhausted");
4422 xrealloc (ptr
, size
)
4426 register char *value
= (char *) realloc (ptr
, size
);
4428 fatal ("virtual memory exhausted");
4432 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
4438 int len1
= strlen (s1
), len2
= strlen (s2
), len3
= strlen (s3
);
4439 char *result
= xmalloc (len1
+ len2
+ len3
+ 1);
4441 strcpy (result
, s1
);
4442 strcpy (result
+ len1
, s2
);
4443 strcpy (result
+ len1
+ len2
, s3
);
4444 *(result
+ len1
+ len2
+ len3
) = 0;
4450 save_string (s
, len
)
4454 register char *result
= xmalloc (len
+ 1);
4456 bcopy (s
, result
, len
);
4462 pfatal_with_name (name
)
4467 if (errno
< sys_nerr
)
4468 s
= concat ("%s: ", sys_errlist
[errno
], "");
4470 s
= "cannot open %s";
4475 perror_with_name (name
)
4480 if (errno
< sys_nerr
)
4481 s
= concat ("%s: ", sys_errlist
[errno
], "");
4483 s
= "cannot open %s";
4493 if (errno
< sys_nerr
)
4494 s
= concat ("installation problem, cannot exec %s: ",
4495 sys_errlist
[errno
], "");
4497 s
= "installation problem, cannot exec %s";
4501 /* More 'friendly' abort that prints the line and file.
4502 config.h can #define abort fancy_abort if you like that sort of thing. */
4507 fatal ("Internal gcc abort.");
4512 /* Output an error message and exit */
4515 fatal
VPROTO((char *format
, ...))
4522 VA_START (ap
, format
);
4525 format
= va_arg (ap
, char*);
4528 fprintf (stderr
, "%s: ", programname
);
4529 vfprintf (stderr
, format
, ap
);
4531 fprintf (stderr
, "\n");
4532 delete_temp_files ();
4537 error
VPROTO((char *format
, ...))
4544 VA_START (ap
, format
);
4547 format
= va_arg (ap
, char*);
4550 fprintf (stderr
, "%s: ", programname
);
4551 vfprintf (stderr
, format
, ap
);
4554 fprintf (stderr
, "\n");
4557 #else /* not HAVE_VPRINTF */
4560 fatal (msg
, arg1
, arg2
)
4561 char *msg
, *arg1
, *arg2
;
4563 error (msg
, arg1
, arg2
);
4564 delete_temp_files ();
4569 error (msg
, arg1
, arg2
)
4570 char *msg
, *arg1
, *arg2
;
4572 fprintf (stderr
, "%s: ", programname
);
4573 fprintf (stderr
, msg
, arg1
, arg2
);
4574 fprintf (stderr
, "\n");
4577 #endif /* not HAVE_VPRINTF */
4581 validate_all_switches ()
4583 struct compiler
*comp
;
4586 struct spec_list
*spec
;
4588 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4591 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4595 if (c
== '%' && *p
== '{')
4596 /* We have a switch spec. */
4597 validate_switches (p
+ 1);
4601 /* look through the linked list of extra specs read from the specs file */
4602 for (spec
= specs
; spec
; spec
= spec
->next
)
4606 if (c
== '%' && *p
== '{')
4607 /* We have a switch spec. */
4608 validate_switches (p
+ 1);
4611 p
= link_command_spec
;
4613 if (c
== '%' && *p
== '{')
4614 /* We have a switch spec. */
4615 validate_switches (p
+ 1);
4617 /* Now notice switches mentioned in the machine-specific specs. */
4621 if (c
== '%' && *p
== '{')
4622 /* We have a switch spec. */
4623 validate_switches (p
+ 1);
4627 if (c
== '%' && *p
== '{')
4628 /* We have a switch spec. */
4629 validate_switches (p
+ 1);
4633 if (c
== '%' && *p
== '{')
4634 /* We have a switch spec. */
4635 validate_switches (p
+ 1);
4637 p
= signed_char_spec
;
4639 if (c
== '%' && *p
== '{')
4640 /* We have a switch spec. */
4641 validate_switches (p
+ 1);
4645 if (c
== '%' && *p
== '{')
4646 /* We have a switch spec. */
4647 validate_switches (p
+ 1);
4651 if (c
== '%' && *p
== '{')
4652 /* We have a switch spec. */
4653 validate_switches (p
+ 1);
4657 if (c
== '%' && *p
== '{')
4658 /* We have a switch spec. */
4659 validate_switches (p
+ 1);
4663 if (c
== '%' && *p
== '{')
4664 /* We have a switch spec. */
4665 validate_switches (p
+ 1);
4669 if (c
== '%' && *p
== '{')
4670 /* We have a switch spec. */
4671 validate_switches (p
+ 1);
4674 /* Look at the switch-name that comes after START
4675 and mark as valid all supplied switches that match it. */
4678 validate_switches (start
)
4681 register char *p
= start
;
4696 while (*p
!= ':' && *p
!= '}') p
++;
4700 else if (p
[-1] == '*')
4702 /* Mark all matching switches as valid. */
4704 for (i
= 0; i
< n_switches
; i
++)
4705 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4706 switches
[i
].valid
= 1;
4710 /* Mark an exact matching switch as valid. */
4711 for (i
= 0; i
< n_switches
; i
++)
4713 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4714 && switches
[i
].part1
[p
- filter
] == 0)
4715 switches
[i
].valid
= 1;
4720 /* Check whether a particular argument was used. */
4729 for (i
= 0; i
< n_switches
; i
++)
4730 if (! strncmp (switches
[i
].part1
, p
, len
)
4731 && strlen (switches
[i
].part1
) == len
)
4736 /* Work out the subdirectory to use based on the
4737 options. The format of multilib_select is a list of elements.
4738 Each element is a subdirectory name followed by a list of options
4739 followed by a semicolon. gcc will consider each line in turn. If
4740 none of the options beginning with an exclamation point are
4741 present, and all of the other options are present, that
4742 subdirectory will be used. */
4747 char *p
= multilib_select
;
4749 char *this_path
, *this_arg
;
4754 /* Ignore newlines. */
4761 /* Get the initial path. */
4769 this_path_len
= p
- this_path
;
4771 /* Check the arguments. */
4786 while (*p
!= ' ' && *p
!= ';')
4793 if (*this_arg
== '!')
4794 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
4796 failed
= ! used_arg (this_arg
, p
- this_arg
);
4804 if (this_path_len
!= 1
4805 || this_path
[0] != '.')
4807 multilib_dir
= xmalloc (this_path_len
+ 1);
4808 strncpy (multilib_dir
, this_path
, this_path_len
);
4809 multilib_dir
[this_path_len
] = '\0';
4818 /* Print out the multiple library subdirectory selection
4819 information. This prints out a series of lines. Each line looks
4820 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4821 required. Only the desired options are printed out, the negative
4822 matches. The options are print without a leading dash. There are
4823 no spaces to make it easy to use the information in the shell.
4824 Each subdirectory is printed only once. This assumes the ordering
4825 generated by the genmultilib script. */
4828 print_multilib_info ()
4830 char *p
= multilib_select
;
4831 char *last_path
, *this_path
;
4832 int last_path_len
, skip
, use_arg
;
4836 /* Ignore newlines. */
4843 /* Get the initial path. */
4852 /* If this is a duplicate, skip it. */
4853 skip
= (p
- this_path
== last_path_len
4854 && ! strncmp (last_path
, this_path
, last_path_len
));
4856 last_path
= this_path
;
4857 last_path_len
= p
- this_path
;
4863 for (p1
= last_path
; p1
< p
; p1
++)
4882 use_arg
= *p
!= '!';
4887 while (*p
!= ' ' && *p
!= ';')