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>
40 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
54 /* Include multi-lib information. */
64 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
67 #define WTERMSIG(S) ((S) & 0x7f)
70 #define WIFEXITED(S) (((S) & 0xff) == 0)
73 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
76 /* Add prototype support. */
78 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
79 #define PROTO(ARGS) ARGS
81 #define PROTO(ARGS) ()
87 #define PVPROTO(ARGS) ARGS
88 #define VPROTO(ARGS) ARGS
89 #define VA_START(va_list,var) va_start(va_list,var)
91 #define PVPROTO(ARGS) ()
92 #define VPROTO(ARGS) (va_alist) va_dcl
93 #define VA_START(va_list,var) va_start(va_list)
97 /* Define a generic NULL if one hasn't already been defined. */
103 /* Define O_RDONLY if the system hasn't defined it for us. */
109 #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
110 #define GENERIC_PTR void *
112 #define GENERIC_PTR char *
117 #define NULL_PTR ((GENERIC_PTR)0)
124 /* On MSDOS, write temp files in current dir
125 because there's no place else we can expect to use. */
132 /* Test if something is a normal file. */
134 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
137 /* Test if something is a directory. */
139 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
142 /* By default there is no special suffix for executables. */
143 #ifndef EXECUTABLE_SUFFIX
144 #define EXECUTABLE_SUFFIX ""
147 /* By default, colon separates directories in a path. */
148 #ifndef PATH_SEPARATOR
149 #define PATH_SEPARATOR ':'
152 #ifndef DIR_SEPARATOR
153 #define DIR_SEPARATOR '/'
156 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
158 #define obstack_chunk_alloc xmalloc
159 #define obstack_chunk_free free
162 extern char *getenv ();
169 #if defined(bsd4_4) || defined(__NetBSD__)
170 extern const char *const sys_errlist
[];
172 extern char *sys_errlist
[];
175 extern int execv (), execvp ();
177 /* If a stage of compilation returns an exit status >= 1,
178 compilation of that file ceases. */
180 #define MIN_FATAL_STATUS 1
182 /* Flag saying to print the full filename of this file
183 as found through our usual search mechanism. */
185 static char *print_file_name
= NULL
;
187 /* As print_file_name, but search for executable file. */
189 static char *print_prog_name
= NULL
;
191 /* Flag saying to print the relative path we'd use to
192 find libgcc.a given the current compiler flags. */
194 static int print_multi_directory
;
196 /* Flag saying to print the list of subdirectories and
197 compiler flags used to select them in a standard form. */
199 static int print_multi_lib
;
201 /* Flag indicating whether we should print the command and arguments */
203 static int verbose_flag
;
205 /* Nonzero means write "temp" files in source directory
206 and use the source file's name in them, and don't delete them. */
208 static int save_temps_flag
;
210 /* The compiler version. */
212 static char *compiler_version
;
214 /* The target version specified with -V */
216 static char *spec_version
= DEFAULT_TARGET_VERSION
;
218 /* The target machine specified with -b. */
220 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
222 /* Nonzero if cross-compiling.
223 When -b is used, the value comes from the `specs' file. */
226 static int cross_compile
= 1;
228 static int cross_compile
= 0;
231 /* The number of errors that have occurred; the link phase will not be
232 run if this is non-zero. */
233 static int error_count
= 0;
235 /* This is the obstack which we use to allocate many strings. */
237 static struct obstack obstack
;
239 /* This is the obstack to build an environment variable to pass to
240 collect2 that describes all of the relevant switches of what to
241 pass the compiler in building the list of pointers to constructors
244 static struct obstack collect_obstack
;
246 extern char *version_string
;
248 /* Forward declaration for prototypes. */
251 static void set_spec
PROTO((char *, char *));
252 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
253 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
254 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
255 static char *skip_whitespace
PROTO((char *));
256 static void record_temp_file
PROTO((char *, int, int));
257 static void delete_if_ordinary
PROTO((char *));
258 static void delete_temp_files
PROTO((void));
259 static void delete_failure_queue
PROTO((void));
260 static void clear_failure_queue
PROTO((void));
261 static char *choose_temp_base_try
PROTO((char *, char *));
262 static void choose_temp_base
PROTO((void));
263 static int check_live_switch
PROTO((int, int));
264 static char *handle_braces
PROTO((char *));
265 static char *save_string
PROTO((char *, int));
266 static char *concat
PROTO((char *, char *));
267 static char *concat3
PROTO((char *, char *, char *));
268 static char *concat4
PROTO((char *, char *, char *, char *));
269 static char *concat6
PROTO((char *, char *, char *, char *, char *, \
271 static int do_spec
PROTO((char *));
272 static int do_spec_1
PROTO((char *, int, char *));
273 static char *find_file
PROTO((char *));
274 static int is_directory
PROTO((char *, char *, int));
275 static void validate_switches
PROTO((char *));
276 static void validate_all_switches
PROTO((void));
277 static void give_switch
PROTO((int, int));
278 static int used_arg
PROTO((char *, int));
279 static void set_multilib_dir
PROTO((void));
280 static void print_multilib_info
PROTO((void));
281 static void pfatal_with_name
PROTO((char *));
282 static void perror_with_name
PROTO((char *));
283 static void perror_exec
PROTO((char *));
285 static void fatal
PVPROTO((char *, ...));
286 static void error
PVPROTO((char *, ...));
288 /* We must not provide any prototype here, even if ANSI C. */
289 static void fatal
PROTO(());
290 static void error
PROTO(());
297 /* Specs are strings containing lines, each of which (if not blank)
298 is made up of a program name, and arguments separated by spaces.
299 The program name must be exact and start from root, since no path
300 is searched and it is unreliable to depend on the current working directory.
301 Redirection of input or output is not supported; the subprograms must
302 accept filenames saying what files to read and write.
304 In addition, the specs can contain %-sequences to substitute variable text
305 or for conditional text. Here is a table of all defined %-sequences.
306 Note that spaces are not generated automatically around the results of
307 expanding these sequences; therefore, you can concatenate them together
308 or with constant text in a single argument.
310 %% substitute one % into the program name or argument.
311 %i substitute the name of the input file being processed.
312 %b substitute the basename of the input file being processed.
313 This is the substring up to (and not including) the last period
314 and not including the directory.
315 %g substitute the temporary-file-name-base. This is a string chosen
316 once per compilation. Different temporary file names are made by
317 concatenation of constant strings on the end, as in `%g.s'.
318 %g also has the same effect of %d.
319 %u like %g, but make the temporary file name unique.
320 %U returns the last file name generated with %u.
321 %d marks the argument containing or following the %d as a
322 temporary file name, so that that file will be deleted if CC exits
323 successfully. Unlike %g, this contributes no text to the argument.
324 %w marks the argument containing or following the %w as the
325 "output file" of this compilation. This puts the argument
326 into the sequence of arguments that %o will substitute later.
328 like %{...} but mark last argument supplied within
329 as a file to be deleted on failure.
330 %o substitutes the names of all the output files, with spaces
331 automatically placed around them. You should write spaces
332 around the %o as well or the results are undefined.
333 %o is for use in the specs for running the linker.
334 Input files whose names have no recognized suffix are not compiled
335 at all, but they are included among the output files, so they will
337 %p substitutes the standard macro predefinitions for the
338 current target machine. Use this when running cpp.
339 %P like %p, but puts `__' before and after the name of each macro.
340 (Except macros that already have __.)
342 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
343 %s current argument is the name of a library or startup file of some sort.
344 Search for that file in a standard list of directories
345 and substitute the full name found.
346 %eSTR Print STR as an error message. STR is terminated by a newline.
347 Use this when inconsistent options are detected.
348 %x{OPTION} Accumulate an option for %X.
349 %X Output the accumulated linker options specified by compilations.
350 %Y Output the accumulated assembler options specified by compilations.
351 %Z Output the accumulated preprocessor options specified by compilations.
352 %v1 Substitute the major version number of GCC.
353 (For version 2.5.n, this is 2.)
354 %v2 Substitute the minor version number of GCC.
355 (For version 2.5.n, this is 5.)
356 %a process ASM_SPEC as a spec.
357 This allows config.h to specify part of the spec for running as.
358 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
359 used here. This can be used to run a post-processor after the
360 assembler has done it's job.
361 %D Dump out a -L option for each directory in startfile_prefixes.
362 If multilib_dir is set, extra entries are generated with it affixed.
363 %l process LINK_SPEC as a spec.
364 %L process LIB_SPEC as a spec.
365 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
366 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
367 %c process SIGNED_CHAR_SPEC as a spec.
368 %C process CPP_SPEC as a spec. A capital C is actually used here.
369 %1 process CC1_SPEC as a spec.
370 %2 process CC1PLUS_SPEC as a spec.
371 %| output "-" if the input for the current command is coming from a pipe.
372 %* substitute the variable part of a matched option. (See below.)
373 Note that each comma in the substituted string is replaced by
375 %{S} substitutes the -S switch, if that switch was given to CC.
376 If that switch was not specified, this substitutes nothing.
377 Here S is a metasyntactic variable.
378 %{S*} substitutes all the switches specified to CC whose names start
379 with -S. This is used for -o, -D, -I, etc; switches that take
380 arguments. CC considers `-o foo' as being one switch whose
381 name starts with `o'. %{o*} would substitute this text,
382 including the space; thus, two arguments would be generated.
383 %{S*:X} substitutes X if one or more switches whose names start with -S are
384 specified to CC. Note that the tail part of the -S option
385 (i.e. the part matched by the `*') will be substituted for each
386 occurrence of %* within X.
387 %{S:X} substitutes X, but only if the -S switch was given to CC.
388 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
389 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
390 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
391 %{.S:X} substitutes X, but only if processing a file with suffix S.
392 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
393 %(Spec) processes a specification defined in a specs file as *Spec:
394 %[Spec] as above, but put __ around -D arguments
396 The conditional text X in a %{S:X} or %{!S:X} construct may contain
397 other nested % constructs or spaces, or even newlines. They are
398 processed as usual, as described above.
400 The -O, -f, -m, and -W switches are handled specifically in these
401 constructs. If another value of -O or the negated form of a -f, -m, or
402 -W switch is found later in the command line, the earlier switch
403 value is ignored, except with {S*} where S is just one letter; this
404 passes all matching options.
406 The character | is used to indicate that a command should be piped to
407 the following command, but only if -pipe is specified.
409 Note that it is built into CC which switches take arguments and which
410 do not. You might think it would be useful to generalize this to
411 allow each compiler's spec to say which switches take arguments. But
412 this cannot be done in a consistent fashion. CC cannot even decide
413 which input files have been specified without knowing which switches
414 take arguments, and it must know which input files to compile in order
415 to tell which compilers to run.
417 CC also knows implicitly that arguments starting in `-l' are to be
418 treated as compiler output files, and passed to the linker in their
419 proper position among the other output files. */
421 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
423 /* config.h can define ASM_SPEC to provide extra args to the assembler
424 or extra switch-translations. */
429 /* config.h can define ASM_FINAL_SPEC to run a post processor after
430 the assembler has run. */
431 #ifndef ASM_FINAL_SPEC
432 #define ASM_FINAL_SPEC ""
435 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
436 or extra switch-translations. */
441 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
442 or extra switch-translations. */
447 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
448 or extra switch-translations. */
450 #define CC1PLUS_SPEC ""
453 /* config.h can define LINK_SPEC to provide extra args to the linker
454 or extra switch-translations. */
459 /* config.h can define LIB_SPEC to override the default libraries. */
461 #define LIB_SPEC "%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
464 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
465 #ifndef STARTFILE_SPEC
466 #define STARTFILE_SPEC \
467 "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
470 /* config.h can define SWITCHES_NEED_SPACES to control passing -o and -L.
471 Make the string nonempty to require spaces there. */
472 #ifndef SWITCHES_NEED_SPACES
473 #define SWITCHES_NEED_SPACES ""
476 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
478 #define ENDFILE_SPEC ""
481 /* This spec is used for telling cpp whether char is signed or not. */
482 #ifndef SIGNED_CHAR_SPEC
483 /* Use #if rather than ?:
484 because MIPS C compiler rejects like ?: in initializers. */
485 #if DEFAULT_SIGNED_CHAR
486 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
488 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
492 /* MULTILIB_SELECT comes from multilib.h. It gives a
493 string interpreted by set_multilib_dir to select a library
494 subdirectory based on the compiler options. */
495 #ifndef MULTILIB_SELECT
496 #define MULTILIB_SELECT ". ;"
499 static char *cpp_spec
= CPP_SPEC
;
500 static char *cpp_predefines
= CPP_PREDEFINES
;
501 static char *cc1_spec
= CC1_SPEC
;
502 static char *cc1plus_spec
= CC1PLUS_SPEC
;
503 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
504 static char *asm_spec
= ASM_SPEC
;
505 static char *asm_final_spec
= ASM_FINAL_SPEC
;
506 static char *link_spec
= LINK_SPEC
;
507 static char *lib_spec
= LIB_SPEC
;
508 static char *endfile_spec
= ENDFILE_SPEC
;
509 static char *startfile_spec
= STARTFILE_SPEC
;
510 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
511 static char *multilib_select
= MULTILIB_SELECT
;
513 /* This defines which switch letters take arguments. */
515 #ifndef SWITCH_TAKES_ARG
516 #define SWITCH_TAKES_ARG(CHAR) \
517 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
518 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
519 || (CHAR) == 'I' || (CHAR) == 'm' \
520 || (CHAR) == 'L' || (CHAR) == 'A')
523 /* This defines which multi-letter switches take arguments. */
525 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
526 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
527 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
528 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
529 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
530 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
531 || !strcmp (STR, "isystem"))
533 #ifndef WORD_SWITCH_TAKES_ARG
534 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
537 /* Record the mapping from file suffixes for compilation specs. */
541 char *suffix
; /* Use this compiler for input files
542 whose names end in this suffix. */
544 char *spec
[4]; /* To use this compiler, concatenate these
545 specs and pass to do_spec. */
548 /* Pointer to a vector of `struct compiler' that gives the spec for
549 compiling a file, based on its suffix.
550 A file that does not end in any of these suffixes will be passed
551 unchanged to the loader and nothing else will be done to it.
553 An entry containing two 0s is used to terminate the vector.
555 If multiple entries match a file, the last matching one is used. */
557 static struct compiler
*compilers
;
559 /* Number of entries in `compilers', not counting the null terminator. */
561 static int n_compilers
;
563 /* The default list of file name suffixes and their compilation specs. */
565 static struct compiler default_compilers
[] =
569 "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
570 %{C:%{!E:%eGNU C does not support -C without using -E}}\
571 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
572 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
573 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
574 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
575 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
576 %{traditional-cpp:-traditional}\
577 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
578 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
579 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
580 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a}\
581 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
582 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
584 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
585 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
586 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
587 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
588 %{!pipe:%g.s} %A\n }}}}"},
590 "%{E:cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
591 %{C:%{!E:%eGNU C does not support -C without using -E}}\
592 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
593 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
594 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
595 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
596 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
597 %{traditional-cpp:-traditional}\
598 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
600 %{!E:%e-E required when input is from standard input}"},
601 {".m", "@objective-c"},
603 "cpp -lang-objc %{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__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
607 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
608 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
609 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
610 %{traditional-cpp:-traditional}\
611 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
612 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
613 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
614 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a}\
615 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
616 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
617 -lang-objc %{gen-decls} \
619 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
620 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
621 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
622 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
623 %{!pipe:%g.s} %A\n }}}}"},
626 "%{!E:%eCompilation of header file requested} \
627 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
628 %{C:%{!E:%eGNU C does not support -C without using -E}}\
629 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
630 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
631 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
632 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
633 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
634 %{traditional-cpp:-traditional}\
635 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
642 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
643 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
644 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
645 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
646 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
647 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
648 %{traditional-cpp:-traditional} %{trigraphs}\
649 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
650 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
651 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
652 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
653 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
654 %{traditional} %{v:-version} %{pg:-p} %{p}\
655 %{f*} %{+e*} %{aux-info*}\
656 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
657 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
658 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
659 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
660 %{!pipe:%g.s} %A\n }}}}"},
661 {".i", "@cpp-output"},
663 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
664 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
665 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
667 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
668 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
669 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
670 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
671 %{!pipe:%g.s} %A\n }}}}"},
672 {".ii", "@c++-cpp-output"},
674 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
675 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
676 %{traditional} %{v:-version} %{pg:-p} %{p}\
677 %{f*} %{+e*} %{aux-info*}\
678 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
679 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
680 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
681 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
682 %{!pipe:%g.s} %A\n }}}}"},
683 {".s", "@assembler"},
685 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
686 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
688 {".S", "@assembler-with-cpp"},
689 {"@assembler-with-cpp",
690 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
691 %{C:%{!E:%eGNU C does not support -C without using -E}}\
692 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
693 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
694 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
695 %{traditional-cpp:-traditional}\
696 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
697 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
698 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
699 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
700 %{!pipe:%g.s} %A\n }}}}"},
705 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
706 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
708 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
709 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
710 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
711 %{c:%W{o*}%{!o*:-o %w%b.o}}\
712 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
713 /* Mark end of table */
717 /* Number of elements in default_compilers, not counting the terminator. */
719 static int n_default_compilers
720 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
722 /* Here is the spec for running the linker, after compiling all files. */
724 /* -u* was put back because both BSD and SysV seem to support it. */
725 /* %{static:} simply prevents an error message if the target machine
726 doesn't handle -static. */
727 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
728 scripts which exist in user specified directories, or in standard
730 #ifdef LINK_LIBGCC_SPECIAL_1
731 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
732 static char *link_command_spec
= "\
734 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
735 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
736 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
737 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
739 #ifdef LINK_LIBGCC_SPECIAL
740 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
741 static char *link_command_spec
= "\
743 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
744 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
745 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
746 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
748 /* Use -L and have the linker do the search for -lgcc. */
749 static char *link_command_spec
= "\
751 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
752 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
753 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
754 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
758 /* A vector of options to give to the linker.
759 These options are accumulated by -Xlinker and -Wl,
760 and substituted into the linker command with %X. */
761 static int n_linker_options
;
762 static char **linker_options
;
764 /* A vector of options to give to the assembler.
765 These options are accumulated by -Wa,
766 and substituted into the assembler command with %Y. */
767 static int n_assembler_options
;
768 static char **assembler_options
;
770 /* A vector of options to give to the preprocessor.
771 These options are accumulated by -Wp,
772 and substituted into the preprocessor command with %Z. */
773 static int n_preprocessor_options
;
774 static char **preprocessor_options
;
776 /* Define how to map long options into short ones. */
778 /* This structure describes one mapping. */
781 /* The long option's name. */
783 /* The equivalent short option. */
785 /* Argument info. A string of flag chars; NULL equals no options.
786 a => argument required.
787 o => argument optional.
788 j => join argument to equivalent, making one word.
789 * => require other text after NAME as an argument. */
793 /* This is the table of mappings. Mappings are tried sequentially
794 for each option encountered; the first one that matches, wins. */
796 struct option_map option_map
[] =
798 {"--all-warnings", "-Wall", 0},
799 {"--ansi", "-ansi", 0},
800 {"--assemble", "-S", 0},
801 {"--assert", "-A", "a"},
802 {"--comments", "-C", 0},
803 {"--compile", "-c", 0},
804 {"--debug", "-g", "oj"},
805 {"--define-macro", "-D", "a"},
806 {"--dependencies", "-M", 0},
807 {"--dump", "-d", "a"},
808 {"--dumpbase", "-dumpbase", "a"},
809 {"--entry", "-e", 0},
810 {"--extra-warnings", "-W", 0},
811 {"--for-assembler", "-Wa", "a"},
812 {"--for-linker", "-Xlinker", "a"},
813 {"--force-link", "-u", "a"},
814 {"--imacros", "-imacros", "a"},
815 {"--include", "-include", "a"},
816 {"--include-barrier", "-I-", 0},
817 {"--include-directory", "-I", "a"},
818 {"--include-directory-after", "-idirafter", "a"},
819 {"--include-prefix", "-iprefix", "a"},
820 {"--include-with-prefix", "-iwithprefix", "a"},
821 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
822 {"--include-with-prefix-after", "-iwithprefix", "a"},
823 {"--language", "-x", "a"},
824 {"--library-directory", "-L", "a"},
825 {"--machine", "-m", "aj"},
826 {"--machine-", "-m", "*j"},
827 {"--no-line-commands", "-P", 0},
828 {"--no-precompiled-includes", "-noprecomp", 0},
829 {"--no-standard-includes", "-nostdinc", 0},
830 {"--no-standard-libraries", "-nostdlib", 0},
831 {"--no-warnings", "-w", 0},
832 {"--optimize", "-O", "oj"},
833 {"--output", "-o", "a"},
834 {"--pedantic", "-pedantic", 0},
835 {"--pedantic-errors", "-pedantic-errors", 0},
836 {"--pipe", "-pipe", 0},
837 {"--prefix", "-B", "a"},
838 {"--preprocess", "-E", 0},
839 {"--print-file-name", "-print-file-name=", "aj"},
840 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
841 {"--print-missing-file-dependencies", "-MG", 0},
842 {"--print-multi-lib", "-print-multi-lib", 0},
843 {"--print-multi-directory", "-print-multi-directory", 0},
844 {"--print-prog-name", "-print-prog-name=", "aj"},
845 {"--profile", "-p", 0},
846 {"--profile-blocks", "-a", 0},
847 {"--quiet", "-q", 0},
848 {"--save-temps", "-save-temps", 0},
849 {"--shared", "-shared", 0},
850 {"--silent", "-q", 0},
851 {"--static", "-static", 0},
852 {"--symbolic", "-symbolic", 0},
853 {"--target", "-b", "a"},
854 {"--trace-includes", "-H", 0},
855 {"--traditional", "-traditional", 0},
856 {"--traditional-cpp", "-traditional-cpp", 0},
857 {"--trigraphs", "-trigraphs", 0},
858 {"--undefine-macro", "-U", "a"},
859 {"--use-version", "-V", "a"},
860 {"--user-dependencies", "-MM", 0},
861 {"--verbose", "-v", 0},
862 {"--version", "-dumpversion", 0},
863 {"--warn-", "-W", "*j"},
864 {"--write-dependencies", "-MD", 0},
865 {"--write-user-dependencies", "-MMD", 0},
869 /* Translate the options described by *ARGCP and *ARGVP.
870 Make a new vector and store it back in *ARGVP,
871 and store its length in *ARGVC. */
874 translate_options (argcp
, argvp
)
880 char **argv
= *argvp
;
881 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
885 newv
[newindex
++] = argv
[i
++];
889 /* Translate -- options. */
890 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
892 /* Find a mapping that applies to this option. */
893 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
895 int optlen
= strlen (option_map
[j
].name
);
896 int arglen
= strlen (argv
[i
]);
897 int complen
= arglen
> optlen
? optlen
: arglen
;
898 char *arginfo
= option_map
[j
].arg_info
;
903 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
910 k
< sizeof (option_map
) / sizeof (option_map
[0]);
912 if (strlen (option_map
[k
].name
) >= arglen
913 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
915 error ("Ambiguous abbreviation %s", argv
[i
]);
919 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
925 /* If the option has an argument, accept that. */
926 if (argv
[i
][optlen
] == '=')
927 arg
= argv
[i
] + optlen
+ 1;
929 /* If this mapping requires extra text at end of name,
930 accept that as "argument". */
931 else if (index (arginfo
, '*') != 0)
932 arg
= argv
[i
] + optlen
;
934 /* Otherwise, extra text at end means mismatch.
935 Try other mappings. */
940 else if (index (arginfo
, '*') != 0)
942 error ("Incomplete `%s' option", option_map
[j
].name
);
946 /* Handle arguments. */
947 if (index (arginfo
, 'a') != 0)
953 error ("Missing argument to `%s' option",
961 else if (index (arginfo
, '*') != 0)
963 else if (index (arginfo
, 'o') == 0)
966 error ("Extraneous argument to `%s' option",
971 /* Store the translation as one argv elt or as two. */
972 if (arg
!= 0 && index (arginfo
, 'j') != 0)
973 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
);
976 newv
[newindex
++] = option_map
[j
].equivalent
;
977 newv
[newindex
++] = arg
;
980 newv
[newindex
++] = option_map
[j
].equivalent
;
988 /* Handle old-fashioned options--just copy them through,
989 with their arguments. */
990 else if (argv
[i
][0] == '-')
992 char *p
= argv
[i
] + 1;
996 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
997 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
998 else if (WORD_SWITCH_TAKES_ARG (p
))
999 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1000 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1003 else if (! strcmp (p
, "Xlinker"))
1006 /* Watch out for an option at the end of the command line that
1007 is missing arguments, and avoid skipping past the end of the
1009 if (nskip
+ i
> argc
)
1014 newv
[newindex
++] = argv
[i
++];
1019 /* Ordinary operands, or +e options. */
1020 newv
[newindex
++] = argv
[i
++];
1029 /* Read compilation specs from a file named FILENAME,
1030 replacing the default ones.
1032 A suffix which starts with `*' is a definition for
1033 one of the machine-specific sub-specs. The "suffix" should be
1034 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1035 The corresponding spec is stored in asm_spec, etc.,
1036 rather than in the `compilers' vector.
1038 Anything invalid in the file is a fatal error. */
1041 read_specs (filename
)
1045 struct stat statbuf
;
1050 fprintf (stderr
, "Reading specs from %s\n", filename
);
1052 /* Open and stat the file. */
1053 desc
= open (filename
, O_RDONLY
, 0);
1055 pfatal_with_name (filename
);
1056 if (stat (filename
, &statbuf
) < 0)
1057 pfatal_with_name (filename
);
1059 /* Read contents of file into BUFFER. */
1060 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1061 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1062 buffer
[statbuf
.st_size
] = 0;
1065 /* Scan BUFFER for specs, putting them in the vector. */
1071 char *in
, *out
, *p1
, *p2
;
1073 /* Advance P in BUFFER to the next nonblank nocomment line. */
1074 p
= skip_whitespace (p
);
1078 /* Find the colon that should end the suffix. */
1080 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1081 /* The colon shouldn't be missing. */
1083 fatal ("specs file malformed after %d characters", p1
- buffer
);
1084 /* Skip back over trailing whitespace. */
1086 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1087 /* Copy the suffix to a string. */
1088 suffix
= save_string (p
, p2
- p
);
1089 /* Find the next line. */
1090 p
= skip_whitespace (p1
+ 1);
1092 fatal ("specs file malformed after %d characters", p
- buffer
);
1094 /* Find next blank line. */
1095 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1096 /* Specs end at the blank line and do not include the newline. */
1097 spec
= save_string (p
, p1
- p
);
1100 /* Delete backslash-newline sequences from the spec. */
1105 if (in
[0] == '\\' && in
[1] == '\n')
1107 else if (in
[0] == '#')
1109 while (*in
&& *in
!= '\n') in
++;
1116 if (suffix
[0] == '*')
1118 if (! strcmp (suffix
, "*link_command"))
1119 link_command_spec
= spec
;
1121 set_spec (suffix
+ 1, spec
);
1125 /* Add this pair to the vector. */
1127 = ((struct compiler
*)
1128 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1129 compilers
[n_compilers
].suffix
= suffix
;
1130 bzero ((char *) compilers
[n_compilers
].spec
,
1131 sizeof compilers
[n_compilers
].spec
);
1132 compilers
[n_compilers
].spec
[0] = spec
;
1134 bzero ((char *) &compilers
[n_compilers
],
1135 sizeof compilers
[n_compilers
]);
1139 link_command_spec
= spec
;
1142 if (link_command_spec
== 0)
1143 fatal ("spec file has no spec for linking");
1152 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1153 be considered whitespace. */
1154 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1156 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1160 while (*p
!= '\n') p
++;
1170 /* Structure to keep track of the specs that have been defined so far. These
1171 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1175 char *name
; /* Name of the spec. */
1176 char *spec
; /* The spec itself. */
1177 struct spec_list
*next
; /* Next spec in linked list. */
1180 /* List of specs that have been defined so far. */
1182 static struct spec_list
*specs
= (struct spec_list
*) 0;
1184 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1185 removed; If the spec starts with a + then SPEC is added to the end of the
1189 set_spec (name
, spec
)
1193 struct spec_list
*sl
;
1196 /* See if the spec already exists */
1197 for (sl
= specs
; sl
; sl
= sl
->next
)
1198 if (strcmp (sl
->name
, name
) == 0)
1203 /* Not found - make it */
1204 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1205 sl
->name
= save_string (name
, strlen (name
));
1206 sl
->spec
= save_string ("", 0);
1211 old_spec
= sl
->spec
;
1212 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1213 sl
->spec
= concat (old_spec
, spec
+ 1);
1215 sl
->spec
= save_string (spec
, strlen (spec
));
1217 if (! strcmp (name
, "asm"))
1218 asm_spec
= sl
->spec
;
1219 else if (! strcmp (name
, "asm_final"))
1220 asm_final_spec
= sl
->spec
;
1221 else if (! strcmp (name
, "cc1"))
1222 cc1_spec
= sl
->spec
;
1223 else if (! strcmp (name
, "cc1plus"))
1224 cc1plus_spec
= sl
->spec
;
1225 else if (! strcmp (name
, "cpp"))
1226 cpp_spec
= sl
->spec
;
1227 else if (! strcmp (name
, "endfile"))
1228 endfile_spec
= sl
->spec
;
1229 else if (! strcmp (name
, "lib"))
1230 lib_spec
= sl
->spec
;
1231 else if (! strcmp (name
, "link"))
1232 link_spec
= sl
->spec
;
1233 else if (! strcmp (name
, "predefines"))
1234 cpp_predefines
= sl
->spec
;
1235 else if (! strcmp (name
, "signed_char"))
1236 signed_char_spec
= sl
->spec
;
1237 else if (! strcmp (name
, "startfile"))
1238 startfile_spec
= sl
->spec
;
1239 else if (! strcmp (name
, "switches_need_spaces"))
1240 switches_need_spaces
= sl
->spec
;
1241 else if (! strcmp (name
, "cross_compile"))
1242 cross_compile
= atoi (sl
->spec
);
1243 else if (! strcmp (name
, "multilib"))
1244 multilib_select
= sl
->spec
;
1245 /* Free the old spec */
1250 /* Accumulate a command (program name and args), and run it. */
1252 /* Vector of pointers to arguments in the current line of specifications. */
1254 static char **argbuf
;
1256 /* Number of elements allocated in argbuf. */
1258 static int argbuf_length
;
1260 /* Number of elements in argbuf currently in use (containing args). */
1262 static int argbuf_index
;
1264 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1265 temp file. Used only if MKTEMP_EACH_FILE. */
1267 static struct temp_name
{
1268 char *suffix
; /* suffix associated with the code. */
1269 int length
; /* strlen (suffix). */
1270 int unique
; /* Indicates whether %g or %u/%U was used. */
1271 char *filename
; /* associated filename. */
1272 int filename_length
; /* strlen (filename). */
1273 struct temp_name
*next
;
1276 /* Number of commands executed so far. */
1278 static int execution_count
;
1280 /* Number of commands that exited with a signal. */
1282 static int signal_count
;
1284 /* Name with which this program was invoked. */
1286 static char *programname
;
1288 /* Structures to keep track of prefixes to try when looking for files. */
1292 char *prefix
; /* String to prepend to the path. */
1293 struct prefix_list
*next
; /* Next in linked list. */
1294 int require_machine_suffix
; /* Don't use without machine_suffix. */
1295 /* 2 means try both machine_suffix and just_machine_suffix. */
1296 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1301 struct prefix_list
*plist
; /* List of prefixes to try */
1302 int max_len
; /* Max length of a prefix in PLIST */
1303 char *name
; /* Name of this list (used in config stuff) */
1306 /* List of prefixes to try when looking for executables. */
1308 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1310 /* List of prefixes to try when looking for startup (crt0) files. */
1312 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1314 /* List of prefixes to try when looking for include files. */
1316 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1318 /* Suffix to attach to directories searched for commands.
1319 This looks like `MACHINE/VERSION/'. */
1321 static char *machine_suffix
= 0;
1323 /* Suffix to attach to directories searched for commands.
1324 This is just `MACHINE/'. */
1326 static char *just_machine_suffix
= 0;
1328 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1330 static char *gcc_exec_prefix
;
1332 /* Default prefixes to attach to command names. */
1334 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1335 #undef MD_EXEC_PREFIX
1336 #undef MD_STARTFILE_PREFIX
1337 #undef MD_STARTFILE_PREFIX_1
1340 #ifndef STANDARD_EXEC_PREFIX
1341 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1342 #endif /* !defined STANDARD_EXEC_PREFIX */
1344 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1345 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1346 #ifdef MD_EXEC_PREFIX
1347 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1350 #ifndef STANDARD_STARTFILE_PREFIX
1351 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1352 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1354 #ifdef MD_STARTFILE_PREFIX
1355 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1357 #ifdef MD_STARTFILE_PREFIX_1
1358 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1360 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1361 static char *standard_startfile_prefix_1
= "/lib/";
1362 static char *standard_startfile_prefix_2
= "/usr/lib/";
1364 #ifndef TOOLDIR_BASE_PREFIX
1365 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1367 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1368 static char *tooldir_prefix
;
1370 /* Subdirectory to use for locating libraries. Set by
1371 set_multilib_dir based on the compilation options. */
1373 static char *multilib_dir
;
1375 /* Clear out the vector of arguments (after a command is executed). */
1383 /* Add one argument to the vector at the end.
1384 This is done when a space is seen or at the end of the line.
1385 If DELETE_ALWAYS is nonzero, the arg is a filename
1386 and the file should be deleted eventually.
1387 If DELETE_FAILURE is nonzero, the arg is a filename
1388 and the file should be deleted if this compilation fails. */
1391 store_arg (arg
, delete_always
, delete_failure
)
1393 int delete_always
, delete_failure
;
1395 if (argbuf_index
+ 1 == argbuf_length
)
1397 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1400 argbuf
[argbuf_index
++] = arg
;
1401 argbuf
[argbuf_index
] = 0;
1403 if (delete_always
|| delete_failure
)
1404 record_temp_file (arg
, delete_always
, delete_failure
);
1407 /* Record the names of temporary files we tell compilers to write,
1408 and delete them at the end of the run. */
1410 /* This is the common prefix we use to make temp file names.
1411 It is chosen once for each run of this program.
1412 It is substituted into a spec by %g.
1413 Thus, all temp file names contain this prefix.
1414 In practice, all temp file names start with this prefix.
1416 This prefix comes from the envvar TMPDIR if it is defined;
1417 otherwise, from the P_tmpdir macro if that is defined;
1418 otherwise, in /usr/tmp or /tmp. */
1420 static char *temp_filename
;
1422 /* Length of the prefix. */
1424 static int temp_filename_length
;
1426 /* Define the list of temporary files to delete. */
1431 struct temp_file
*next
;
1434 /* Queue of files to delete on success or failure of compilation. */
1435 static struct temp_file
*always_delete_queue
;
1436 /* Queue of files to delete on failure of compilation. */
1437 static struct temp_file
*failure_delete_queue
;
1439 /* Record FILENAME as a file to be deleted automatically.
1440 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1441 otherwise delete it in any case.
1442 FAIL_DELETE nonzero means delete it if a compilation step fails;
1443 otherwise delete it in any case. */
1446 record_temp_file (filename
, always_delete
, fail_delete
)
1451 register char *name
;
1452 name
= xmalloc (strlen (filename
) + 1);
1453 strcpy (name
, filename
);
1457 register struct temp_file
*temp
;
1458 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1459 if (! strcmp (name
, temp
->name
))
1461 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1462 temp
->next
= always_delete_queue
;
1464 always_delete_queue
= temp
;
1470 register struct temp_file
*temp
;
1471 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1472 if (! strcmp (name
, temp
->name
))
1474 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1475 temp
->next
= failure_delete_queue
;
1477 failure_delete_queue
= temp
;
1482 /* Delete all the temporary files whose names we previously recorded. */
1485 delete_if_ordinary (name
)
1492 printf ("Delete %s? (y or n) ", name
);
1496 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1497 if (i
== 'y' || i
== 'Y')
1499 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1500 if (unlink (name
) < 0)
1502 perror_with_name (name
);
1506 delete_temp_files ()
1508 register struct temp_file
*temp
;
1510 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1511 delete_if_ordinary (temp
->name
);
1512 always_delete_queue
= 0;
1515 /* Delete all the files to be deleted on error. */
1518 delete_failure_queue ()
1520 register struct temp_file
*temp
;
1522 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1523 delete_if_ordinary (temp
->name
);
1527 clear_failure_queue ()
1529 failure_delete_queue
= 0;
1532 /* Compute a string to use as the base of all temporary file names.
1533 It is substituted for %g. */
1536 choose_temp_base_try (try, base
)
1543 else if (try == (char *)0)
1545 else if (access (try, R_OK
| W_OK
) != 0)
1558 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1559 base
= choose_temp_base_try (getenv ("TMP"), base
);
1560 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1563 base
= choose_temp_base_try (P_tmpdir
, base
);
1566 base
= choose_temp_base_try (concat4 (dir_separator_str
, "usr",
1567 dir_separator_str
, "tmp"),
1569 base
= choose_temp_base_try (concat (dir_separator_str
, "tmp"), base
);
1571 /* If all else fails, use the current directory! */
1572 if (base
== (char *)0) base
= concat(".", dir_separator_str
);
1574 len
= strlen (base
);
1575 temp_filename
= xmalloc (len
+ strlen (concat (dir_separator_str
,
1577 strcpy (temp_filename
, base
);
1578 if (len
> 0 && temp_filename
[len
-1] != '/'
1579 && temp_filename
[len
-1] != DIR_SEPARATOR
)
1580 temp_filename
[len
++] = DIR_SEPARATOR
;
1581 strcpy (temp_filename
+ len
, "ccXXXXXX");
1583 mktemp (temp_filename
);
1584 temp_filename_length
= strlen (temp_filename
);
1585 if (temp_filename_length
== 0)
1590 /* Routine to add variables to the environment. We do this to pass
1591 the pathname of the gcc driver, and the directories search to the
1592 collect2 program, which is being run as ld. This way, we can be
1593 sure of executing the right compiler when collect2 wants to build
1594 constructors and destructors. Since the environment variables we
1595 use come from an obstack, we don't have to worry about allocating
1604 #ifndef VMS /* nor about VMS */
1606 extern char **environ
;
1607 char **old_environ
= environ
;
1611 int str_len
= strlen (str
);
1615 while ((ch
= *p
++) != '\0' && ch
!= '=')
1621 /* Search for replacing an existing environment variable, and
1622 count the number of total environment variables. */
1623 for (envp
= old_environ
; *envp
; envp
++)
1626 if (!strncmp (str
, *envp
, name_len
))
1633 /* Add a new environment variable */
1634 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1636 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1637 sizeof (char *) * (num_envs
+1));
1642 #endif /* HAVE_PUTENV */
1645 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1648 putenv_from_prefixes (paths
, env_var
)
1649 struct path_prefix
*paths
;
1652 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1654 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1655 int first_time
= TRUE
;
1656 struct prefix_list
*pprefix
;
1658 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1660 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1662 int len
= strlen (pprefix
->prefix
);
1665 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1668 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1671 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1672 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1675 if (just_machine_suffix
1676 && pprefix
->require_machine_suffix
== 2
1677 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1680 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1683 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1684 obstack_grow (&collect_obstack
, just_machine_suffix
,
1688 if (!pprefix
->require_machine_suffix
)
1691 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1694 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1697 obstack_1grow (&collect_obstack
, '\0');
1698 putenv (obstack_finish (&collect_obstack
));
1702 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1703 access to check permissions.
1704 Return 0 if not found, otherwise return its name, allocated with malloc. */
1707 find_a_file (pprefix
, name
, mode
)
1708 struct path_prefix
*pprefix
;
1713 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1714 struct prefix_list
*pl
;
1715 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1718 len
+= strlen (machine_suffix
);
1720 temp
= xmalloc (len
);
1722 /* Determine the filename to execute (special case for absolute paths). */
1724 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1726 if (access (name
, mode
))
1728 strcpy (temp
, name
);
1733 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1737 /* Some systems have a suffix for executable files.
1738 So try appending that first. */
1739 if (file_suffix
[0] != 0)
1741 strcpy (temp
, pl
->prefix
);
1742 strcat (temp
, machine_suffix
);
1743 strcat (temp
, name
);
1744 strcat (temp
, file_suffix
);
1745 if (access (temp
, mode
) == 0)
1747 if (pl
->used_flag_ptr
!= 0)
1748 *pl
->used_flag_ptr
= 1;
1753 /* Now try just the name. */
1754 strcpy (temp
, pl
->prefix
);
1755 strcat (temp
, machine_suffix
);
1756 strcat (temp
, name
);
1757 if (access (temp
, mode
) == 0)
1759 if (pl
->used_flag_ptr
!= 0)
1760 *pl
->used_flag_ptr
= 1;
1765 /* Certain prefixes are tried with just the machine type,
1766 not the version. This is used for finding as, ld, etc. */
1767 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1769 /* Some systems have a suffix for executable files.
1770 So try appending that first. */
1771 if (file_suffix
[0] != 0)
1773 strcpy (temp
, pl
->prefix
);
1774 strcat (temp
, just_machine_suffix
);
1775 strcat (temp
, name
);
1776 strcat (temp
, file_suffix
);
1777 if (access (temp
, mode
) == 0)
1779 if (pl
->used_flag_ptr
!= 0)
1780 *pl
->used_flag_ptr
= 1;
1785 strcpy (temp
, pl
->prefix
);
1786 strcat (temp
, just_machine_suffix
);
1787 strcat (temp
, name
);
1788 if (access (temp
, mode
) == 0)
1790 if (pl
->used_flag_ptr
!= 0)
1791 *pl
->used_flag_ptr
= 1;
1796 /* Certain prefixes can't be used without the machine suffix
1797 when the machine or version is explicitly specified. */
1798 if (!pl
->require_machine_suffix
)
1800 /* Some systems have a suffix for executable files.
1801 So try appending that first. */
1802 if (file_suffix
[0] != 0)
1804 strcpy (temp
, pl
->prefix
);
1805 strcat (temp
, name
);
1806 strcat (temp
, file_suffix
);
1807 if (access (temp
, mode
) == 0)
1809 if (pl
->used_flag_ptr
!= 0)
1810 *pl
->used_flag_ptr
= 1;
1815 strcpy (temp
, pl
->prefix
);
1816 strcat (temp
, name
);
1817 if (access (temp
, mode
) == 0)
1819 if (pl
->used_flag_ptr
!= 0)
1820 *pl
->used_flag_ptr
= 1;
1830 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1831 at the start of the list, otherwise it goes at the end.
1833 If WARN is nonzero, we will warn if no file is found
1834 through this prefix. WARN should point to an int
1835 which will be set to 1 if this entry is used.
1837 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1838 the complete value of machine_suffix.
1839 2 means try both machine_suffix and just_machine_suffix. */
1842 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1843 struct path_prefix
*pprefix
;
1846 int require_machine_suffix
;
1849 struct prefix_list
*pl
, **prev
;
1852 if (!first
&& pprefix
->plist
)
1854 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1859 prev
= &pprefix
->plist
;
1861 /* Keep track of the longest prefix */
1863 len
= strlen (prefix
);
1864 if (len
> pprefix
->max_len
)
1865 pprefix
->max_len
= len
;
1867 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1868 pl
->prefix
= save_string (prefix
, len
);
1869 pl
->require_machine_suffix
= require_machine_suffix
;
1870 pl
->used_flag_ptr
= warn
;
1877 pl
->next
= (struct prefix_list
*) 0;
1881 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1884 unused_prefix_warnings (pprefix
)
1885 struct path_prefix
*pprefix
;
1887 struct prefix_list
*pl
= pprefix
->plist
;
1891 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1893 error ("file path prefix `%s' never used",
1895 /* Prevent duplicate warnings. */
1896 *pl
->used_flag_ptr
= 1;
1902 /* Get rid of all prefixes built up so far in *PLISTP. */
1905 free_path_prefix (pprefix
)
1906 struct path_prefix
*pprefix
;
1908 struct prefix_list
*pl
= pprefix
->plist
;
1909 struct prefix_list
*temp
;
1915 free (temp
->prefix
);
1916 free ((char *) temp
);
1918 pprefix
->plist
= (struct prefix_list
*) 0;
1921 /* stdin file number. */
1922 #define STDIN_FILE_NO 0
1924 /* stdout file number. */
1925 #define STDOUT_FILE_NO 1
1927 /* value of `pipe': port index for reading. */
1930 /* value of `pipe': port index for writing. */
1931 #define WRITE_PORT 1
1933 /* Pipe waiting from last process, to be used as input for the next one.
1934 Value is STDIN_FILE_NO if no pipe is waiting
1935 (i.e. the next command is the first of a group). */
1937 static int last_pipe_input
;
1939 /* Fork one piped subcommand. FUNC is the system call to use
1940 (either execv or execvp). ARGV is the arg vector to use.
1941 NOT_LAST is nonzero if this is not the last subcommand
1942 (i.e. its output should be piped to the next one.) */
1946 #include <process.h>
1948 pexecute (search_flag
, program
, argv
, not_last
)
1955 int i
= (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1959 int i
, el
= search_flag
? 0 : 4;
1961 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1962 rf
= scmd
+ strlen(program
) + 2 + el
;
1963 sprintf (scmd
, "%s%s @%s.gp", program
,
1964 (search_flag
? "" : ".exe"), temp_filename
);
1965 argfile
= fopen (rf
, "w");
1967 pfatal_with_name (rf
);
1969 for (i
=1; argv
[i
]; i
++)
1972 for (cp
= argv
[i
]; *cp
; cp
++)
1974 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1975 fputc ('\\', argfile
);
1976 fputc (*cp
, argfile
);
1978 fputc ('\n', argfile
);
1989 perror_exec (program
);
1990 return MIN_FATAL_STATUS
<< 8;
1997 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2000 pexecute (search_flag
, program
, argv
, not_last
)
2006 int (*func
)() = (search_flag
? execv
: execvp
);
2009 int input_desc
= last_pipe_input
;
2010 int output_desc
= STDOUT_FILE_NO
;
2011 int retries
, sleep_interval
;
2013 /* If this isn't the last process, make a pipe for its output,
2014 and record it as waiting to be the input to the next process. */
2018 if (pipe (pdes
) < 0)
2019 pfatal_with_name ("pipe");
2020 output_desc
= pdes
[WRITE_PORT
];
2021 last_pipe_input
= pdes
[READ_PORT
];
2024 last_pipe_input
= STDIN_FILE_NO
;
2026 /* Fork a subprocess; wait and retry if it fails. */
2028 for (retries
= 0; retries
< 4; retries
++)
2033 sleep (sleep_interval
);
2034 sleep_interval
*= 2;
2041 pfatal_with_name ("fork");
2043 pfatal_with_name ("vfork");
2049 /* Move the input and output pipes into place, if nec. */
2050 if (input_desc
!= STDIN_FILE_NO
)
2052 close (STDIN_FILE_NO
);
2056 if (output_desc
!= STDOUT_FILE_NO
)
2058 close (STDOUT_FILE_NO
);
2060 close (output_desc
);
2063 /* Close the parent's descs that aren't wanted here. */
2064 if (last_pipe_input
!= STDIN_FILE_NO
)
2065 close (last_pipe_input
);
2067 /* Exec the program. */
2068 (*func
) (program
, argv
);
2069 perror_exec (program
);
2075 /* In the parent, after forking.
2076 Close the descriptors that we made for this child. */
2077 if (input_desc
!= STDIN_FILE_NO
)
2079 if (output_desc
!= STDOUT_FILE_NO
)
2080 close (output_desc
);
2082 /* Return child's process number. */
2087 #endif /* not __MSDOS__ and not OS2 */
2089 #if defined(OS2) || defined(WINNT)
2099 for (i
= 1; argvec
[i
] != 0; i
++)
2102 char *temp
, *newtemp
;
2105 len
= strlen (temp
);
2106 for (j
= 0; j
< len
; j
++)
2110 newtemp
= xmalloc (len
+ 2);
2111 strncpy (newtemp
, temp
, j
);
2113 strncpy (&newtemp
[j
+1], &temp
[j
], len
-j
);
2114 newtemp
[len
+1] = 0;
2128 #define FIX_ARGV(a) fix_argv(a)
2132 #define FIX_ARGV(a) a
2134 #endif /* OS2 or WINNT */
2137 pexecute (search_flag
, program
, argv
, not_last
)
2143 return (search_flag
? spawnv
: spawnvp
) (1, program
, FIX_ARGV (argv
));
2145 #endif /* OS2 or WINNT */
2148 /* Execute the command specified by the arguments on the current line of spec.
2149 When using pipes, this includes several piped-together commands
2150 with `|' between them.
2152 Return 0 if successful, -1 if failed. */
2158 int n_commands
; /* # of command. */
2162 char *prog
; /* program name. */
2163 char **argv
; /* vector of args. */
2164 int pid
; /* pid of process for this command. */
2167 struct command
*commands
; /* each command buffer with above info. */
2169 /* Count # of piped commands. */
2170 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2171 if (strcmp (argbuf
[i
], "|") == 0)
2174 /* Get storage for each command. */
2176 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2178 /* Split argbuf into its separate piped processes,
2179 and record info about each one.
2180 Also search for the programs that are to be run. */
2182 commands
[0].prog
= argbuf
[0]; /* first command. */
2183 commands
[0].argv
= &argbuf
[0];
2184 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2186 commands
[0].argv
[0] = string
;
2188 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2189 if (strcmp (argbuf
[i
], "|") == 0)
2190 { /* each command. */
2192 fatal ("-pipe not supported under MS-DOS");
2194 argbuf
[i
] = 0; /* termination of command args. */
2195 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2196 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2197 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2199 commands
[n_commands
].argv
[0] = string
;
2203 argbuf
[argbuf_index
] = 0;
2205 /* If -v, print what we are about to do, and maybe query. */
2209 /* Print each piped command as a separate line. */
2210 for (i
= 0; i
< n_commands
; i
++)
2214 for (j
= commands
[i
].argv
; *j
; j
++)
2215 fprintf (stderr
, " %s", *j
);
2217 /* Print a pipe symbol after all but the last command. */
2218 if (i
+ 1 != n_commands
)
2219 fprintf (stderr
, " |");
2220 fprintf (stderr
, "\n");
2224 fprintf (stderr
, "\nGo ahead? (y or n) ");
2228 while (getchar () != '\n') ;
2229 if (i
!= 'y' && i
!= 'Y')
2234 /* Run each piped subprocess. */
2236 last_pipe_input
= STDIN_FILE_NO
;
2237 for (i
= 0; i
< n_commands
; i
++)
2239 char *string
= commands
[i
].argv
[0];
2241 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2242 string
, commands
[i
].argv
,
2243 i
+ 1 < n_commands
);
2245 if (string
!= commands
[i
].prog
)
2251 /* Wait for all the subprocesses to finish.
2252 We don't care what order they finish in;
2253 we know that N_COMMANDS waits will get them all. */
2258 for (i
= 0; i
< n_commands
; i
++)
2262 char *prog
= "unknown";
2265 status
= pid
= commands
[i
].pid
;
2268 pid
= cwait (&status
, commands
[i
].pid
, WAIT_CHILD
);
2270 pid
= wait (&status
);
2279 for (j
= 0; j
< n_commands
; j
++)
2280 if (commands
[j
].pid
== pid
)
2281 prog
= commands
[j
].prog
;
2283 if (WIFSIGNALED (status
))
2285 fatal ("Internal compiler error: program %s got fatal signal %d",
2286 prog
, WTERMSIG (status
));
2290 else if (WIFEXITED (status
)
2291 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2299 /* Find all the switches given to us
2300 and make a vector describing them.
2301 The elements of the vector are strings, one per switch given.
2302 If a switch uses following arguments, then the `part1' field
2303 is the switch itself and the `args' field
2304 is a null-terminated vector containing the following arguments.
2305 The `live_cond' field is 1 if the switch is true in a conditional spec,
2306 -1 if false (overridden by a later switch), and is initialized to zero.
2307 The `valid' field is nonzero if any spec has looked at this switch;
2308 if it remains zero at the end of the run, it must be meaningless. */
2318 static struct switchstr
*switches
;
2320 static int n_switches
;
2328 /* Also a vector of input files specified. */
2330 static struct infile
*infiles
;
2332 static int n_infiles
;
2334 /* And a vector of corresponding output files is made up later. */
2336 static char **outfiles
;
2338 /* Create the vector `switches' and its contents.
2339 Store its length in `n_switches'. */
2342 process_command (argc
, argv
)
2348 char *spec_lang
= 0;
2349 int last_language_n_infiles
;
2351 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2356 /* Figure compiler version from version string. */
2358 compiler_version
= save_string (version_string
, strlen (version_string
));
2359 for (temp
= compiler_version
; *temp
; ++temp
)
2368 /* Set up the default search paths. */
2370 if (gcc_exec_prefix
)
2372 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2373 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2376 /* COMPILER_PATH and LIBRARY_PATH have values
2377 that are lists of directory names with colons. */
2379 temp
= getenv ("COMPILER_PATH");
2382 char *startp
, *endp
;
2383 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2385 startp
= endp
= temp
;
2388 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2390 strncpy (nstore
, startp
, endp
-startp
);
2392 strcpy (nstore
, concat (".", dir_separator_str
));
2393 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2395 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2396 nstore
[endp
-startp
+1] = 0;
2399 nstore
[endp
-startp
] = 0;
2400 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2403 endp
= startp
= endp
+ 1;
2410 temp
= getenv ("LIBRARY_PATH");
2413 char *startp
, *endp
;
2414 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2416 startp
= endp
= temp
;
2419 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2421 strncpy (nstore
, startp
, endp
-startp
);
2423 strcpy (nstore
, concat (".", dir_separator_str
));
2424 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2426 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2427 nstore
[endp
-startp
+1] = 0;
2430 nstore
[endp
-startp
] = 0;
2431 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2434 endp
= startp
= endp
+ 1;
2441 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2442 temp
= getenv ("LPATH");
2445 char *startp
, *endp
;
2446 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2448 startp
= endp
= temp
;
2451 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2453 strncpy (nstore
, startp
, endp
-startp
);
2455 strcpy (nstore
, concat (".", dir_separator_str
));
2456 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2458 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2459 nstore
[endp
-startp
+1] = 0;
2462 nstore
[endp
-startp
] = 0;
2463 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2466 endp
= startp
= endp
+ 1;
2473 /* Convert new-style -- options to old-style. */
2474 translate_options (&argc
, &argv
);
2476 /* Scan argv twice. Here, the first time, just count how many switches
2477 there will be in their vector, and how many input files in theirs.
2478 Here we also parse the switches that cc itself uses (e.g. -v). */
2480 for (i
= 1; i
< argc
; i
++)
2482 if (! strcmp (argv
[i
], "-dumpspecs"))
2484 printf ("*asm:\n%s\n\n", asm_spec
);
2485 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2486 printf ("*cpp:\n%s\n\n", cpp_spec
);
2487 printf ("*cc1:\n%s\n\n", cc1_spec
);
2488 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2489 printf ("*endfile:\n%s\n\n", endfile_spec
);
2490 printf ("*link:\n%s\n\n", link_spec
);
2491 printf ("*lib:\n%s\n\n", lib_spec
);
2492 printf ("*startfile:\n%s\n\n", startfile_spec
);
2493 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2494 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2495 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2496 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2497 printf ("*multilib:\n%s\n\n", multilib_select
);
2501 else if (! strcmp (argv
[i
], "-dumpversion"))
2503 printf ("%s\n", version_string
);
2506 else if (! strcmp (argv
[i
], "-dumpmachine"))
2508 printf ("%s\n", spec_machine
);
2511 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2512 print_file_name
= "libgcc.a";
2513 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2514 print_file_name
= argv
[i
] + 17;
2515 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2516 print_prog_name
= argv
[i
] + 17;
2517 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2518 print_multi_lib
= 1;
2519 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2520 print_multi_directory
= 1;
2521 else if (! strcmp (argv
[i
], "-Xlinker"))
2523 /* Pass the argument of this option to the linker when we link. */
2526 fatal ("argument to `-Xlinker' is missing");
2529 if (!linker_options
)
2531 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2534 = (char **) xrealloc (linker_options
,
2535 n_linker_options
* sizeof (char **));
2537 linker_options
[n_linker_options
- 1] = argv
[++i
];
2539 else if (! strncmp (argv
[i
], "-Wl,", 4))
2542 /* Pass the rest of this option to the linker when we link. */
2545 if (!linker_options
)
2547 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2550 = (char **) xrealloc (linker_options
,
2551 n_linker_options
* sizeof (char **));
2553 /* Split the argument at commas. */
2555 for (j
= 4; argv
[i
][j
]; j
++)
2556 if (argv
[i
][j
] == ',')
2558 linker_options
[n_linker_options
- 1]
2559 = save_string (argv
[i
] + prev
, j
- prev
);
2562 = (char **) xrealloc (linker_options
,
2563 n_linker_options
* sizeof (char **));
2566 /* Record the part after the last comma. */
2567 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2569 else if (! strncmp (argv
[i
], "-Wa,", 4))
2572 /* Pass the rest of this option to the assembler. */
2574 n_assembler_options
++;
2575 if (!assembler_options
)
2577 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2580 = (char **) xrealloc (assembler_options
,
2581 n_assembler_options
* sizeof (char **));
2583 /* Split the argument at commas. */
2585 for (j
= 4; argv
[i
][j
]; j
++)
2586 if (argv
[i
][j
] == ',')
2588 assembler_options
[n_assembler_options
- 1]
2589 = save_string (argv
[i
] + prev
, j
- prev
);
2590 n_assembler_options
++;
2592 = (char **) xrealloc (assembler_options
,
2593 n_assembler_options
* sizeof (char **));
2596 /* Record the part after the last comma. */
2597 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2599 else if (! strncmp (argv
[i
], "-Wp,", 4))
2602 /* Pass the rest of this option to the preprocessor. */
2604 n_preprocessor_options
++;
2605 if (!preprocessor_options
)
2606 preprocessor_options
2607 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2609 preprocessor_options
2610 = (char **) xrealloc (preprocessor_options
,
2611 n_preprocessor_options
* sizeof (char **));
2613 /* Split the argument at commas. */
2615 for (j
= 4; argv
[i
][j
]; j
++)
2616 if (argv
[i
][j
] == ',')
2618 preprocessor_options
[n_preprocessor_options
- 1]
2619 = save_string (argv
[i
] + prev
, j
- prev
);
2620 n_preprocessor_options
++;
2621 preprocessor_options
2622 = (char **) xrealloc (preprocessor_options
,
2623 n_preprocessor_options
* sizeof (char **));
2626 /* Record the part after the last comma. */
2627 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2629 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2630 /* The +e options to the C++ front-end. */
2632 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2634 register char *p
= &argv
[i
][1];
2635 register int c
= *p
;
2640 if (p
[1] == 0 && i
+ 1 == argc
)
2641 fatal ("argument to `-b' is missing");
2643 spec_machine
= argv
[++i
];
2645 spec_machine
= p
+ 1;
2650 int *temp
= (int *) xmalloc (sizeof (int));
2652 if (p
[1] == 0 && i
+ 1 == argc
)
2653 fatal ("argument to `-B' is missing");
2658 add_prefix (&exec_prefixes
, value
, 1, 0, temp
);
2659 add_prefix (&startfile_prefixes
, value
, 1, 0, temp
);
2660 add_prefix (&include_prefixes
, concat (value
, "include"),
2663 /* As a kludge, if the arg is "[foo/]stageN/", just add
2664 "[foo/]include" to the include prefix. */
2666 int len
= strlen (value
);
2669 && (value
[len
- 8] == '/'
2670 || value
[len
- 8] == DIR_SEPARATOR
)))
2671 && strncmp (value
+ len
- 7, "stage", 5) == 0
2672 && isdigit (value
[len
- 2])
2673 && (value
[len
- 1] == '/'
2674 || value
[len
- 1] == DIR_SEPARATOR
))
2677 add_prefix (&include_prefixes
, "include", 1, 0, 0);
2680 char *string
= xmalloc (len
+ 1);
2681 strncpy (string
, value
, len
-7);
2682 strcat (string
, "include");
2683 add_prefix (&include_prefixes
, string
, 1, 0, 0);
2690 case 'v': /* Print our subcommands and print versions. */
2692 /* If they do anything other than exactly `-v', don't set
2693 verbose_flag; rather, continue on to give the error. */
2700 if (p
[1] == 0 && i
+ 1 == argc
)
2701 fatal ("argument to `-V' is missing");
2703 spec_version
= argv
[++i
];
2705 spec_version
= p
+ 1;
2706 compiler_version
= spec_version
;
2710 if (!strcmp (p
, "save-temps"))
2712 save_temps_flag
= 1;
2719 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2720 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2721 else if (WORD_SWITCH_TAKES_ARG (p
))
2722 i
+= WORD_SWITCH_TAKES_ARG (p
);
2729 /* Set up the search paths before we go looking for config files. */
2731 /* These come before the md prefixes so that we will find gcc's subcommands
2732 (such as cpp) rather than those of the host system. */
2733 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2734 as well as trying the machine and the version. */
2736 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2737 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2740 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2741 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2743 tooldir_prefix
= concat3 (tooldir_base_prefix
, spec_machine
,
2746 /* If tooldir is relative, base it on exec_prefixes. A relative
2747 tooldir lets us move the installed tree as a unit.
2749 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2750 directories, so that we can search both the user specified directory
2751 and the standard place. */
2753 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2755 if (gcc_exec_prefix
)
2757 char *gcc_exec_tooldir_prefix
2758 = concat6 (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2759 spec_version
, dir_separator_str
, tooldir_prefix
);
2761 add_prefix (&exec_prefixes
,
2762 concat3 (gcc_exec_tooldir_prefix
, "bin",
2765 add_prefix (&startfile_prefixes
,
2766 concat3 (gcc_exec_tooldir_prefix
, "lib",
2771 tooldir_prefix
= concat6 (standard_exec_prefix
, spec_machine
,
2772 dir_separator_str
, spec_version
,
2773 dir_separator_str
, tooldir_prefix
);
2776 add_prefix (&exec_prefixes
,
2777 concat3 (tooldir_prefix
, "bin", dir_separator_str
),
2779 add_prefix (&startfile_prefixes
,
2780 concat3 (tooldir_prefix
, "lib", dir_separator_str
),
2783 /* More prefixes are enabled in main, after we read the specs file
2784 and determine whether this is cross-compilation or not. */
2787 /* Then create the space for the vectors and scan again. */
2789 switches
= ((struct switchstr
*)
2790 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2791 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2794 last_language_n_infiles
= -1;
2796 /* This, time, copy the text of each switch and store a pointer
2797 to the copy in the vector of switches.
2798 Store all the infiles in their vector. */
2800 for (i
= 1; i
< argc
; i
++)
2802 /* Just skip the switches that were handled by the preceding loop. */
2803 if (!strcmp (argv
[i
], "-Xlinker"))
2805 else if (! strncmp (argv
[i
], "-Wl,", 4))
2807 else if (! strncmp (argv
[i
], "-Wa,", 4))
2809 else if (! strncmp (argv
[i
], "-Wp,", 4))
2811 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2813 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2815 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2817 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2819 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2821 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2823 /* Compensate for the +e options to the C++ front-end;
2824 they're there simply for cfront call-compatibility. We do
2825 some magic in default_compilers to pass them down properly.
2826 Note we deliberately start at the `+' here, to avoid passing
2827 -e0 or -e1 down into the linker. */
2828 switches
[n_switches
].part1
= &argv
[i
][0];
2829 switches
[n_switches
].args
= 0;
2830 switches
[n_switches
].live_cond
= 0;
2831 switches
[n_switches
].valid
= 0;
2834 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2836 register char *p
= &argv
[i
][1];
2837 register int c
= *p
;
2839 if (c
== 'B' || c
== 'b' || c
== 'V')
2841 /* Skip a separate arg, if any. */
2848 if (p
[1] == 0 && i
+ 1 == argc
)
2849 fatal ("argument to `-x' is missing");
2851 spec_lang
= argv
[++i
];
2854 if (! strcmp (spec_lang
, "none"))
2855 /* Suppress the warning if -xnone comes after the last input file,
2856 because alternate command interfaces like g++ might find it
2857 useful to place -xnone after each input file. */
2860 last_language_n_infiles
= n_infiles
;
2863 switches
[n_switches
].part1
= p
;
2864 /* Deal with option arguments in separate argv elements. */
2865 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2866 || WORD_SWITCH_TAKES_ARG (p
))
2869 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2873 /* Count only the option arguments in separate argv elements. */
2874 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2876 if (i
+ n_args
>= argc
)
2877 fatal ("argument to `-%s' is missing", p
);
2878 switches
[n_switches
].args
2879 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2881 switches
[n_switches
].args
[j
++] = argv
[++i
];
2882 /* Null-terminate the vector. */
2883 switches
[n_switches
].args
[j
] = 0;
2885 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2887 /* On some systems, ld cannot handle -o or -L without space.
2888 So split the -o or -L from its argument. */
2889 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2890 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2891 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2892 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2893 switches
[n_switches
].args
[1] = 0;
2896 switches
[n_switches
].args
= 0;
2898 switches
[n_switches
].live_cond
= 0;
2899 switches
[n_switches
].valid
= 0;
2900 /* This is always valid, since gcc.c itself understands it. */
2901 if (!strcmp (p
, "save-temps"))
2902 switches
[n_switches
].valid
= 1;
2907 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2908 && strcmp (argv
[i
], "-")
2909 && access (argv
[i
], R_OK
) < 0)
2911 perror_with_name (argv
[i
]);
2916 infiles
[n_infiles
].language
= spec_lang
;
2917 infiles
[n_infiles
++].name
= argv
[i
];
2922 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2923 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2925 switches
[n_switches
].part1
= 0;
2926 infiles
[n_infiles
].name
= 0;
2928 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2929 if (gcc_exec_prefix
)
2931 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2932 + strlen (spec_machine
) + 3);
2933 strcpy (temp
, gcc_exec_prefix
);
2934 strcat (temp
, spec_machine
);
2935 strcat (temp
, dir_separator_str
);
2936 strcat (temp
, spec_version
);
2937 strcat (temp
, dir_separator_str
);
2938 gcc_exec_prefix
= temp
;
2942 /* Process a spec string, accumulating and running commands. */
2944 /* These variables describe the input file name.
2945 input_file_number is the index on outfiles of this file,
2946 so that the output file name can be stored for later use by %o.
2947 input_basename is the start of the part of the input file
2948 sans all directory names, and basename_length is the number
2949 of characters starting there excluding the suffix .c or whatever. */
2951 static char *input_filename
;
2952 static int input_file_number
;
2953 static int input_filename_length
;
2954 static int basename_length
;
2955 static char *input_basename
;
2956 static char *input_suffix
;
2958 /* These are variables used within do_spec and do_spec_1. */
2960 /* Nonzero if an arg has been started and not yet terminated
2961 (with space, tab or newline). */
2962 static int arg_going
;
2964 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2965 is a temporary file name. */
2966 static int delete_this_arg
;
2968 /* Nonzero means %w has been seen; the next arg to be terminated
2969 is the output file name of this compilation. */
2970 static int this_is_output_file
;
2972 /* Nonzero means %s has been seen; the next arg to be terminated
2973 is the name of a library file and we should try the standard
2974 search dirs for it. */
2975 static int this_is_library_file
;
2977 /* Nonzero means that the input of this command is coming from a pipe. */
2978 static int input_from_pipe
;
2980 /* Process the spec SPEC and run the commands specified therein.
2981 Returns 0 if the spec is successfully processed; -1 if failed. */
2991 delete_this_arg
= 0;
2992 this_is_output_file
= 0;
2993 this_is_library_file
= 0;
2994 input_from_pipe
= 0;
2996 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2998 /* Force out any unfinished command.
2999 If -pipe, this forces out the last command if it ended in `|'. */
3002 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3005 if (argbuf_index
> 0)
3012 /* Process the sub-spec SPEC as a portion of a larger spec.
3013 This is like processing a whole spec except that we do
3014 not initialize at the beginning and we do not supply a
3015 newline by default at the end.
3016 INSWITCH nonzero means don't process %-sequences in SPEC;
3017 in this case, % is treated as an ordinary character.
3018 This is used while substituting switches.
3019 INSWITCH nonzero also causes SPC not to terminate an argument.
3021 Value is zero unless a line was finished
3022 and the command on that line reported an error. */
3025 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3028 char *soft_matched_part
;
3030 register char *p
= spec
;
3037 /* If substituting a switch, treat all chars like letters.
3038 Otherwise, NL, SPC, TAB and % are special. */
3039 switch (inswitch
? 'a' : c
)
3042 /* End of line: finish any pending argument,
3043 then run the pending command if one has been started. */
3046 obstack_1grow (&obstack
, 0);
3047 string
= obstack_finish (&obstack
);
3048 if (this_is_library_file
)
3049 string
= find_file (string
);
3050 store_arg (string
, delete_this_arg
, this_is_output_file
);
3051 if (this_is_output_file
)
3052 outfiles
[input_file_number
] = string
;
3056 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3059 for (i
= 0; i
< n_switches
; i
++)
3060 if (!strcmp (switches
[i
].part1
, "pipe"))
3063 /* A `|' before the newline means use a pipe here,
3064 but only if -pipe was specified.
3065 Otherwise, execute now and don't pass the `|' as an arg. */
3068 input_from_pipe
= 1;
3069 switches
[i
].valid
= 1;
3076 if (argbuf_index
> 0)
3082 /* Reinitialize for a new command, and for a new argument. */
3085 delete_this_arg
= 0;
3086 this_is_output_file
= 0;
3087 this_is_library_file
= 0;
3088 input_from_pipe
= 0;
3092 /* End any pending argument. */
3095 obstack_1grow (&obstack
, 0);
3096 string
= obstack_finish (&obstack
);
3097 if (this_is_library_file
)
3098 string
= find_file (string
);
3099 store_arg (string
, delete_this_arg
, this_is_output_file
);
3100 if (this_is_output_file
)
3101 outfiles
[input_file_number
] = string
;
3105 obstack_1grow (&obstack
, c
);
3111 /* Space or tab ends an argument if one is pending. */
3114 obstack_1grow (&obstack
, 0);
3115 string
= obstack_finish (&obstack
);
3116 if (this_is_library_file
)
3117 string
= find_file (string
);
3118 store_arg (string
, delete_this_arg
, this_is_output_file
);
3119 if (this_is_output_file
)
3120 outfiles
[input_file_number
] = string
;
3122 /* Reinitialize for a new argument. */
3124 delete_this_arg
= 0;
3125 this_is_output_file
= 0;
3126 this_is_library_file
= 0;
3133 fatal ("Invalid specification! Bug in cc.");
3136 obstack_grow (&obstack
, input_basename
, basename_length
);
3141 delete_this_arg
= 2;
3144 /* Dump out the directories specified with LIBRARY_PATH,
3145 followed by the absolute directories
3146 that we search for startfiles. */
3149 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3151 char *buffer
= (char *) xmalloc (bufsize
);
3154 for (; pl
; pl
= pl
->next
)
3156 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3157 /* Used on systems which record the specified -L dirs
3158 and use them to search for dynamic linking. */
3159 /* Relative directories always come from -B,
3160 and it is better not to use them for searching
3161 at run time. In particular, stage1 loses */
3162 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3165 /* Try subdirectory if there is one. */
3166 if (multilib_dir
!= NULL
)
3170 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3172 bufsize
= (strlen (pl
->prefix
)
3173 + strlen (machine_suffix
)) * 2 + 1;
3174 buffer
= (char *) xrealloc (buffer
, bufsize
);
3175 strcpy (buffer
, pl
->prefix
);
3176 strcat (buffer
, machine_suffix
);
3177 if (is_directory (buffer
, multilib_dir
, 1))
3179 do_spec_1 ("-L", 0, NULL_PTR
);
3180 #ifdef SPACE_AFTER_L_OPTION
3181 do_spec_1 (" ", 0, NULL_PTR
);
3183 do_spec_1 (buffer
, 1, NULL_PTR
);
3184 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3185 /* Make this a separate argument. */
3186 do_spec_1 (" ", 0, NULL_PTR
);
3189 if (!pl
->require_machine_suffix
)
3191 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3193 do_spec_1 ("-L", 0, NULL_PTR
);
3194 #ifdef SPACE_AFTER_L_OPTION
3195 do_spec_1 (" ", 0, NULL_PTR
);
3197 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3198 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3199 /* Make this a separate argument. */
3200 do_spec_1 (" ", 0, NULL_PTR
);
3206 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3208 do_spec_1 ("-L", 0, NULL_PTR
);
3209 #ifdef SPACE_AFTER_L_OPTION
3210 do_spec_1 (" ", 0, NULL_PTR
);
3212 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3213 /* Remove slash from machine_suffix. */
3214 if (strlen (machine_suffix
) >= bufsize
)
3215 bufsize
= strlen (machine_suffix
) * 2 + 1;
3216 buffer
= (char *) xrealloc (buffer
, bufsize
);
3217 strcpy (buffer
, machine_suffix
);
3218 idx
= strlen (buffer
);
3219 if (buffer
[idx
- 1] == '/'
3220 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3221 buffer
[idx
- 1] = 0;
3222 do_spec_1 (buffer
, 1, NULL_PTR
);
3223 /* Make this a separate argument. */
3224 do_spec_1 (" ", 0, NULL_PTR
);
3227 if (!pl
->require_machine_suffix
)
3229 if (is_directory (pl
->prefix
, "", 1))
3231 do_spec_1 ("-L", 0, NULL_PTR
);
3232 #ifdef SPACE_AFTER_L_OPTION
3233 do_spec_1 (" ", 0, NULL_PTR
);
3235 /* Remove slash from pl->prefix. */
3236 if (strlen (pl
->prefix
) >= bufsize
)
3237 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3238 buffer
= (char *) xrealloc (buffer
, bufsize
);
3239 strcpy (buffer
, pl
->prefix
);
3240 idx
= strlen (buffer
);
3241 if (buffer
[idx
- 1] == '/'
3242 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3243 buffer
[idx
- 1] = 0;
3244 do_spec_1 (buffer
, 1, NULL_PTR
);
3245 /* Make this a separate argument. */
3246 do_spec_1 (" ", 0, NULL_PTR
);
3255 /* {...:%efoo} means report an error with `foo' as error message
3256 and don't execute any more commands for this file. */
3260 while (*p
!= 0 && *p
!= '\n') p
++;
3261 buf
= (char *) alloca (p
- q
+ 1);
3262 strncpy (buf
, q
, p
- q
);
3272 if (save_temps_flag
)
3274 obstack_grow (&obstack
, input_basename
, basename_length
);
3275 delete_this_arg
= 0;
3279 #ifdef MKTEMP_EACH_FILE
3280 /* ??? This has a problem: the total number of
3281 values mktemp can return is limited.
3282 That matters for the names of object files.
3283 In 2.4, do something about that. */
3284 struct temp_name
*t
;
3286 while (*p
== '.' || isalpha (*p
))
3289 /* See if we already have an association of %g/%u/%U and
3291 for (t
= temp_names
; t
; t
= t
->next
)
3292 if (t
->length
== p
- suffix
3293 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3294 && t
->unique
== (c
!= 'g'))
3297 /* Make a new association if needed. %u requires one. */
3298 if (t
== 0 || c
== 'u')
3302 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3303 t
->next
= temp_names
;
3306 t
->length
= p
- suffix
;
3307 t
->suffix
= save_string (suffix
, p
- suffix
);
3308 t
->unique
= (c
!= 'g');
3309 choose_temp_base ();
3310 t
->filename
= temp_filename
;
3311 t
->filename_length
= temp_filename_length
;
3314 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3315 delete_this_arg
= 1;
3317 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3318 if (c
== 'u' || c
== 'U')
3324 sprintf (buff
, "%d", unique
);
3325 obstack_grow (&obstack
, buff
, strlen (buff
));
3328 delete_this_arg
= 1;
3334 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3340 struct prefix_list
*pl
= include_prefixes
.plist
;
3342 if (gcc_exec_prefix
)
3344 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3345 /* Make this a separate argument. */
3346 do_spec_1 (" ", 0, NULL_PTR
);
3347 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3348 do_spec_1 (" ", 0, NULL_PTR
);
3351 for (; pl
; pl
= pl
->next
)
3353 do_spec_1 ("-isystem", 1, NULL_PTR
);
3354 /* Make this a separate argument. */
3355 do_spec_1 (" ", 0, NULL_PTR
);
3356 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3357 do_spec_1 (" ", 0, NULL_PTR
);
3365 for (f
= 0; f
< n_infiles
; f
++)
3366 store_arg (outfiles
[f
], 0, 0);
3371 this_is_library_file
= 1;
3375 this_is_output_file
= 1;
3380 int index
= argbuf_index
;
3381 /* Handle the {...} following the %W. */
3384 p
= handle_braces (p
+ 1);
3387 /* If any args were output, mark the last one for deletion
3389 if (argbuf_index
!= index
)
3390 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3394 /* %x{OPTION} records OPTION for %X to output. */
3400 /* Skip past the option value and make a copy. */
3405 string
= save_string (p1
+ 1, p
- p1
- 2);
3407 /* See if we already recorded this option. */
3408 for (i
= 0; i
< n_linker_options
; i
++)
3409 if (! strcmp (string
, linker_options
[i
]))
3415 /* This option is new; add it. */
3417 if (!linker_options
)
3419 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3422 = (char **) xrealloc (linker_options
,
3423 n_linker_options
* sizeof (char **));
3425 linker_options
[n_linker_options
- 1] = string
;
3429 /* Dump out the options accumulated previously using %x,
3430 -Xlinker and -Wl,. */
3432 for (i
= 0; i
< n_linker_options
; i
++)
3434 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3435 /* Make each accumulated option a separate argument. */
3436 do_spec_1 (" ", 0, NULL_PTR
);
3440 /* Dump out the options accumulated previously using -Wa,. */
3442 for (i
= 0; i
< n_assembler_options
; i
++)
3444 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3445 /* Make each accumulated option a separate argument. */
3446 do_spec_1 (" ", 0, NULL_PTR
);
3450 /* Dump out the options accumulated previously using -Wp,. */
3452 for (i
= 0; i
< n_preprocessor_options
; i
++)
3454 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3455 /* Make each accumulated option a separate argument. */
3456 do_spec_1 (" ", 0, NULL_PTR
);
3460 /* Here are digits and numbers that just process
3461 a certain constant string as a spec. */
3464 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3470 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3476 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3482 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3488 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3494 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3500 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3506 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3512 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3519 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3523 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3527 if (! strncmp (y
, "-D", 2))
3528 /* Copy the whole option. */
3529 while (*y
&& *y
!= ' ' && *y
!= '\t')
3531 else if (*y
== ' ' || *y
== '\t')
3532 /* Copy whitespace to the result. */
3534 /* Don't copy other options. */
3541 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3549 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3553 /* Copy all of CPP_PREDEFINES into BUF,
3554 but put __ after every -D and at the end of each arg. */
3558 if (! strncmp (y
, "-D", 2))
3566 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3568 /* Stick __ at front of macro name. */
3571 /* Arrange to stick __ at the end as well. */
3575 /* Copy the macro name. */
3576 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3585 /* Copy the value given, if any. */
3586 while (*y
&& *y
!= ' ' && *y
!= '\t')
3589 else if (*y
== ' ' || *y
== '\t')
3590 /* Copy whitespace to the result. */
3592 /* Don't copy -A options */
3598 /* Copy all of CPP_PREDEFINES into BUF,
3599 but put __ after every -D. */
3603 if (! strncmp (y
, "-D", 2))
3608 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3610 /* Stick -D__ at front of macro name. */
3616 /* Copy the macro name. */
3617 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3620 /* Copy the value given, if any. */
3621 while (*y
&& *y
!= ' ' && *y
!= '\t')
3626 /* Do not copy this macro - we have just done it before */
3627 while (*y
&& *y
!= ' ' && *y
!= '\t')
3631 else if (*y
== ' ' || *y
== '\t')
3632 /* Copy whitespace to the result. */
3634 /* Don't copy -A options */
3640 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3644 if (! strncmp (y
, "-A", 2))
3645 /* Copy the whole option. */
3646 while (*y
&& *y
!= ' ' && *y
!= '\t')
3648 else if (*y
== ' ' || *y
== '\t')
3649 /* Copy whitespace to the result. */
3651 /* Don't copy other options. */
3658 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3665 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3670 /* Here we define characters other than letters and digits. */
3673 p
= handle_braces (p
);
3679 obstack_1grow (&obstack
, '%');
3683 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3684 do_spec_1 (" ", 0, NULL_PTR
);
3687 /* Process a string found as the value of a spec given by name.
3688 This feature allows individual machine descriptions
3689 to add and use their own specs.
3690 %[...] modifies -D options the way %P does;
3691 %(...) uses the spec unmodified. */
3696 struct spec_list
*sl
;
3699 /* The string after the S/P is the name of a spec that is to be
3701 while (*p
&& *p
!= ')' && *p
!= ']')
3704 /* See if it's in the list */
3705 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3706 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3716 value
= do_spec_1 (name
, 0, NULL_PTR
);
3722 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3726 /* Copy all of NAME into BUF, but put __ after
3727 every -D and at the end of each arg, */
3730 if (! strncmp (y
, "-D", 2))
3738 else if (*y
== ' ' || *y
== 0)
3752 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3758 /* Discard the closing paren or bracket. */
3766 int c1
= *p
++; /* Select first or second version number. */
3767 char *v
= compiler_version
;
3769 /* If desired, advance to second version number. */
3772 /* Set P after the first period. */
3773 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3778 /* Set Q at the next period or at the end. */
3780 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3782 /* Empty string means zero. */
3788 /* Put that part into the command. */
3789 obstack_grow (&obstack
, v
, q
- v
);
3795 if (input_from_pipe
)
3796 do_spec_1 ("-", 0, NULL_PTR
);
3805 /* Backslash: treat next character as ordinary. */
3810 /* Ordinary character: put it into the current argument. */
3811 obstack_1grow (&obstack
, c
);
3815 return 0; /* End of string */
3818 /* Return 0 if we call do_spec_1 and that returns -1. */
3831 /* A `|' after the open-brace means,
3832 if the test fails, output a single minus sign rather than nothing.
3833 This is used in %{|!pipe:...}. */
3837 /* A `!' after the open-brace negates the condition:
3838 succeed if the specified switch is not present. */
3842 /* A `.' after the open-brace means test against the current suffix. */
3852 while (*p
!= ':' && *p
!= '}') p
++;
3855 register int count
= 1;
3873 int found
= (input_suffix
!= 0
3874 && strlen (input_suffix
) == p
- filter
3875 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3881 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3886 else if (p
[-1] == '*' && p
[0] == '}')
3888 /* Substitute all matching switches as separate args. */
3891 for (i
= 0; i
< n_switches
; i
++)
3892 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3893 && check_live_switch (i
, p
- filter
))
3898 /* Test for presence of the specified switch. */
3902 /* If name specified ends in *, as in {x*:...},
3903 check for %* and handle that case. */
3904 if (p
[-1] == '*' && !negate
)
3909 /* First see whether we have %*. */
3913 if (*r
== '%' && r
[1] == '*')
3917 /* If we do, handle that case. */
3920 /* Substitute all matching switches as separate args.
3921 But do this by substituting for %*
3922 in the text that follows the colon. */
3924 unsigned hard_match_len
= p
- filter
- 1;
3925 char *string
= save_string (p
+ 1, q
- p
- 2);
3927 for (i
= 0; i
< n_switches
; i
++)
3928 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3929 && check_live_switch (i
, -1))
3931 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3932 /* Pass any arguments this switch has. */
3940 /* If name specified ends in *, as in {x*:...},
3941 check for presence of any switch name starting with x. */
3944 for (i
= 0; i
< n_switches
; i
++)
3946 unsigned hard_match_len
= p
- filter
- 1;
3948 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3949 && check_live_switch (i
, hard_match_len
))
3955 /* Otherwise, check for presence of exact name specified. */
3958 for (i
= 0; i
< n_switches
; i
++)
3960 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3961 && switches
[i
].part1
[p
- filter
] == 0
3962 && check_live_switch (i
, -1))
3970 /* If it is as desired (present for %{s...}, absent for %{-s...})
3971 then substitute either the switch or the specified
3972 conditional text. */
3973 if (present
!= negate
)
3981 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3987 /* Here if a %{|...} conditional fails: output a minus sign,
3988 which means "standard output" or "standard input". */
3989 do_spec_1 ("-", 0, NULL_PTR
);
3996 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3997 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3998 spec, or -1 if either exact match or %* is used.
4000 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4001 whose value does not begin with "no-" is obsoleted by the same value
4002 with the "no-", similarly for a switch with the "no-" prefix. */
4005 check_live_switch (switchnum
, prefix_length
)
4009 char *name
= switches
[switchnum
].part1
;
4012 /* In the common case of {<at-most-one-letter>*}, a negating
4013 switch would always match, so ignore that case. We will just
4014 send the conflicting switches to the compiler phase. */
4015 if (prefix_length
>= 0 && prefix_length
<= 1)
4018 /* If we already processed this switch and determined if it was
4019 live or not, return our past determination. */
4020 if (switches
[switchnum
].live_cond
!= 0)
4021 return switches
[switchnum
].live_cond
> 0;
4023 /* Now search for duplicate in a manner that depends on the name. */
4027 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4028 if (switches
[i
].part1
[0] == 'O')
4030 switches
[switchnum
].valid
= 1;
4031 switches
[switchnum
].live_cond
= -1;
4036 case 'W': case 'f': case 'm':
4037 if (! strncmp (name
+ 1, "no-", 3))
4039 /* We have Xno-YYY, search for XYYY. */
4040 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4041 if (switches
[i
].part1
[0] == name
[0]
4042 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4044 switches
[switchnum
].valid
= 1;
4045 switches
[switchnum
].live_cond
= -1;
4051 /* We have XYYY, search for Xno-YYY. */
4052 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4053 if (switches
[i
].part1
[0] == name
[0]
4054 && switches
[i
].part1
[1] == 'n'
4055 && switches
[i
].part1
[2] == 'o'
4056 && switches
[i
].part1
[3] == '-'
4057 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4059 switches
[switchnum
].valid
= 1;
4060 switches
[switchnum
].live_cond
= -1;
4067 /* Otherwise the switch is live. */
4068 switches
[switchnum
].live_cond
= 1;
4072 /* Pass a switch to the current accumulating command
4073 in the same form that we received it.
4074 SWITCHNUM identifies the switch; it is an index into
4075 the vector of switches gcc received, which is `switches'.
4076 This cannot fail since it never finishes a command line.
4078 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4081 give_switch (switchnum
, omit_first_word
)
4083 int omit_first_word
;
4085 if (!omit_first_word
)
4087 do_spec_1 ("-", 0, NULL_PTR
);
4088 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4090 do_spec_1 (" ", 0, NULL_PTR
);
4091 if (switches
[switchnum
].args
!= 0)
4094 for (p
= switches
[switchnum
].args
; *p
; p
++)
4096 do_spec_1 (*p
, 1, NULL_PTR
);
4097 do_spec_1 (" ", 0, NULL_PTR
);
4100 switches
[switchnum
].valid
= 1;
4103 /* Search for a file named NAME trying various prefixes including the
4104 user's -B prefix and some standard ones.
4105 Return the absolute file name found. If nothing is found, return NAME. */
4113 /* Try multilib_dir if it is defined. */
4114 if (multilib_dir
!= NULL
)
4118 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4119 strcpy (try, multilib_dir
);
4120 strcat (try, dir_separator_str
);
4123 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4125 /* If we don't find it in the multi library dir, then fall
4126 through and look for it in the normal places. */
4127 if (newname
!= NULL
)
4131 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4132 return newname
? newname
: name
;
4135 /* Determine whether a directory exists. If LINKER, return 0 for
4136 certain fixed names not needed by the linker. If not LINKER, it is
4137 only important to return 0 if the host machine has a small ARG_MAX
4141 is_directory (path1
, path2
, linker
)
4146 int len1
= strlen (path1
);
4147 int len2
= strlen (path2
);
4148 char *path
= (char *) alloca (3 + len1
+ len2
);
4152 #ifndef SMALL_ARG_MAX
4157 /* Construct the path from the two parts. Ensure the string ends with "/.".
4158 The resulting path will be a directory even if the given path is a
4160 bcopy (path1
, path
, len1
);
4161 bcopy (path2
, path
+ len1
, len2
);
4162 cp
= path
+ len1
+ len2
;
4163 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4164 *cp
++ = DIR_SEPARATOR
;
4168 /* Exclude directories that the linker is known to search. */
4171 && strcmp (path
, concat4 (dir_separator_str
, "lib",
4172 dir_separator_str
, ".")) == 0)
4174 && strcmp (path
, concat6 (dir_separator_str
, "usr",
4175 dir_separator_str
, "lib",
4176 dir_separator_str
, ".")) == 0)))
4179 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4182 /* On fatal signals, delete all the temporary files. */
4185 fatal_error (signum
)
4188 signal (signum
, SIG_DFL
);
4189 delete_failure_queue ();
4190 delete_temp_files ();
4191 /* Get the same signal again, this time not handled,
4192 so its normal effect occurs. */
4193 kill (getpid (), signum
);
4204 int linker_was_run
= 0;
4205 char *explicit_link_files
;
4209 p
= argv
[0] + strlen (argv
[0]);
4210 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4213 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4214 signal (SIGINT
, fatal_error
);
4216 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4217 signal (SIGHUP
, fatal_error
);
4219 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4220 signal (SIGTERM
, fatal_error
);
4222 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4223 signal (SIGPIPE
, fatal_error
);
4227 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4229 obstack_init (&obstack
);
4231 /* Set up to remember the pathname of gcc and any options
4232 needed for collect. We use argv[0] instead of programname because
4233 we need the complete pathname. */
4234 obstack_init (&collect_obstack
);
4235 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4236 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4237 putenv (obstack_finish (&collect_obstack
));
4239 /* Choose directory for temp files. */
4241 choose_temp_base ();
4243 /* Make a table of what switches there are (switches, n_switches).
4244 Make a table of specified input files (infiles, n_infiles).
4245 Decode switches that are handled locally. */
4247 process_command (argc
, argv
);
4249 /* Initialize the vector of specs to just the default.
4250 This means one element containing 0s, as a terminator. */
4252 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4253 bcopy ((char *) default_compilers
, (char *) compilers
,
4254 sizeof default_compilers
);
4255 n_compilers
= n_default_compilers
;
4257 /* Read specs from a file if there is one. */
4259 machine_suffix
= concat4 (spec_machine
, dir_separator_str
,
4260 spec_version
, dir_separator_str
);
4261 just_machine_suffix
= concat (spec_machine
, dir_separator_str
);
4263 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4264 /* Read the specs file unless it is a default one. */
4265 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4266 read_specs (specs_file
);
4268 /* If not cross-compiling, look for startfiles in the standard places. */
4269 /* The fact that these are done here, after reading the specs file,
4270 means that it cannot be found in these directories.
4271 But that's okay. It should never be there anyway. */
4274 #ifdef MD_EXEC_PREFIX
4275 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4276 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4279 #ifdef MD_STARTFILE_PREFIX
4280 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4283 #ifdef MD_STARTFILE_PREFIX_1
4284 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4287 /* If standard_startfile_prefix is relative, base it on
4288 standard_exec_prefix. This lets us move the installed tree
4289 as a unit. If GCC_EXEC_PREFIX is defined, base
4290 standard_startfile_prefix on that as well. */
4291 if (*standard_startfile_prefix
== '/'
4292 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4293 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4297 if (gcc_exec_prefix
)
4298 add_prefix (&startfile_prefixes
,
4299 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4301 add_prefix (&startfile_prefixes
,
4302 concat3 (standard_exec_prefix
,
4304 standard_startfile_prefix
),
4308 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4310 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4312 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4313 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4317 /* Now we have the specs.
4318 Set the `valid' bits for switches that match anything in any spec. */
4320 validate_all_switches ();
4322 /* Now that we have the switches and the specs, set
4323 the subdirectory based on the options. */
4324 set_multilib_dir ();
4326 /* Warn about any switches that no pass was interested in. */
4328 for (i
= 0; i
< n_switches
; i
++)
4329 if (! switches
[i
].valid
)
4330 error ("unrecognized option `-%s'", switches
[i
].part1
);
4332 /* Obey some of the options. */
4334 if (print_file_name
)
4336 printf ("%s\n", find_file (print_file_name
));
4340 if (print_prog_name
)
4342 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4343 printf ("%s\n", (newname
? newname
: print_prog_name
));
4347 if (print_multi_lib
)
4349 print_multilib_info ();
4353 if (print_multi_directory
)
4355 if (multilib_dir
== NULL
)
4358 printf ("%s\n", multilib_dir
);
4364 fprintf (stderr
, "gcc version %s\n", version_string
);
4370 fatal ("No input files");
4372 /* Make a place to record the compiler output file names
4373 that correspond to the input files. */
4375 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4376 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4378 /* Record which files were specified explicitly as link input. */
4380 explicit_link_files
= xmalloc (n_infiles
);
4381 bzero (explicit_link_files
, n_infiles
);
4383 for (i
= 0; i
< n_infiles
; i
++)
4385 register struct compiler
*cp
= 0;
4386 int this_file_error
= 0;
4388 /* Tell do_spec what to substitute for %i. */
4390 input_filename
= infiles
[i
].name
;
4391 input_filename_length
= strlen (input_filename
);
4392 input_file_number
= i
;
4394 /* Use the same thing in %o, unless cp->spec says otherwise. */
4396 outfiles
[i
] = input_filename
;
4398 /* Figure out which compiler from the file's suffix. */
4400 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4401 infiles
[i
].language
);
4405 /* Ok, we found an applicable compiler. Run its spec. */
4406 /* First say how much of input_filename to substitute for %b */
4410 input_basename
= input_filename
;
4411 for (p
= input_filename
; *p
; p
++)
4412 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4413 input_basename
= p
+ 1;
4415 /* Find a suffix starting with the last period,
4416 and set basename_length to exclude that suffix. */
4417 basename_length
= strlen (input_basename
);
4418 p
= input_basename
+ basename_length
;
4419 while (p
!= input_basename
&& *p
!= '.') --p
;
4420 if (*p
== '.' && p
!= input_basename
)
4422 basename_length
= p
- input_basename
;
4423 input_suffix
= p
+ 1;
4429 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4431 len
+= strlen (cp
->spec
[j
]);
4433 p
= (char *) xmalloc (len
+ 1);
4436 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4439 strcpy (p
+ len
, cp
->spec
[j
]);
4440 len
+= strlen (cp
->spec
[j
]);
4443 value
= do_spec (p
);
4446 this_file_error
= 1;
4449 /* If this file's name does not contain a recognized suffix,
4450 record it as explicit linker input. */
4453 explicit_link_files
[i
] = 1;
4455 /* Clear the delete-on-failure queue, deleting the files in it
4456 if this compilation failed. */
4458 if (this_file_error
)
4460 delete_failure_queue ();
4463 /* If this compilation succeeded, don't delete those files later. */
4464 clear_failure_queue ();
4467 /* Run ld to link all the compiler output files. */
4469 if (error_count
== 0)
4471 int tmp
= execution_count
;
4475 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4477 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4478 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4480 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4482 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4483 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4486 for (i
= 0; i
< n_switches
; i
++)
4490 obstack_grow (&collect_obstack
, " ", 1);
4493 obstack_grow (&collect_obstack
, "-", 1);
4494 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4495 strlen (switches
[i
].part1
));
4497 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4499 obstack_grow (&collect_obstack
, " ", 1);
4500 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4503 obstack_grow (&collect_obstack
, "\0", 1);
4504 putenv (obstack_finish (&collect_obstack
));
4506 value
= do_spec (link_command_spec
);
4509 linker_was_run
= (tmp
!= execution_count
);
4512 /* Warn if a -B option was specified but the prefix was never used. */
4513 unused_prefix_warnings (&exec_prefixes
);
4514 unused_prefix_warnings (&startfile_prefixes
);
4516 /* If options said don't run linker,
4517 complain about input files to be given to the linker. */
4519 if (! linker_was_run
&& error_count
== 0)
4520 for (i
= 0; i
< n_infiles
; i
++)
4521 if (explicit_link_files
[i
])
4522 error ("%s: linker input file unused since linking not done",
4525 /* Delete some or all of the temporary files we made. */
4528 delete_failure_queue ();
4529 delete_temp_files ();
4531 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4536 /* Find the proper compilation spec for the file name NAME,
4537 whose length is LENGTH. LANGUAGE is the specified language,
4538 or 0 if none specified. */
4540 static struct compiler
*
4541 lookup_compiler (name
, length
, language
)
4546 struct compiler
*cp
;
4548 /* Look for the language, if one is spec'd. */
4551 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4555 if (cp
->suffix
[0] == '@'
4556 && !strcmp (cp
->suffix
+ 1, language
))
4560 error ("language %s not recognized", language
);
4563 /* Look for a suffix. */
4564 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4566 if (/* The suffix `-' matches only the file name `-'. */
4567 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4569 (strlen (cp
->suffix
) < length
4570 /* See if the suffix matches the end of NAME. */
4572 && (!strcmp (cp
->suffix
,
4573 name
+ length
- strlen (cp
->suffix
))
4574 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4575 && !strcasecmp (cp
->suffix
,
4576 name
+ length
- strlen (cp
->suffix
)))))
4578 && !strcmp (cp
->suffix
,
4579 name
+ length
- strlen (cp
->suffix
))))
4582 if (cp
->spec
[0][0] == '@')
4584 struct compiler
*new;
4585 /* An alias entry maps a suffix to a language.
4586 Search for the language; pass 0 for NAME and LENGTH
4587 to avoid infinite recursion if language not found.
4588 Construct the new compiler spec. */
4589 language
= cp
->spec
[0] + 1;
4590 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4591 new->suffix
= cp
->suffix
;
4592 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4593 (char *) new->spec
, sizeof new->spec
);
4596 /* A non-alias entry: return it. */
4608 register char *value
= (char *) malloc (size
);
4610 fatal ("virtual memory exhausted");
4615 xrealloc (ptr
, size
)
4619 register char *value
= (char *) realloc (ptr
, size
);
4621 fatal ("virtual memory exhausted");
4625 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4631 int len1
= strlen (s1
);
4632 int len2
= strlen (s2
);
4633 char *result
= xmalloc (len1
+ len2
+ 1);
4635 strcpy (result
, s1
);
4636 strcpy (result
+ len1
, s2
);
4637 *(result
+ len1
+ len2
) = 0;
4643 concat3 (s1
, s2
, s3
)
4646 return concat (concat (s1
, s2
), s3
);
4650 concat4 (s1
, s2
, s3
, s4
)
4651 char *s1
, *s2
, *s3
, *s4
;
4653 return concat (concat (s1
, s2
), concat (s3
, s4
));
4657 concat6 (s1
, s2
, s3
, s4
, s5
, s6
)
4658 char *s1
, *s2
, *s3
, *s4
, *s5
, *s6
;
4660 return concat3 (concat (s1
, s2
), concat (s3
, s4
), concat (s5
, s6
));
4664 save_string (s
, len
)
4668 register char *result
= xmalloc (len
+ 1);
4670 bcopy (s
, result
, len
);
4676 pfatal_with_name (name
)
4681 if (errno
< sys_nerr
)
4682 s
= concat ("%s: ", sys_errlist
[errno
]);
4684 s
= "cannot open %s";
4689 perror_with_name (name
)
4694 if (errno
< sys_nerr
)
4695 s
= concat ("%s: ", sys_errlist
[errno
]);
4697 s
= "cannot open %s";
4707 if (errno
< sys_nerr
)
4708 s
= concat ("installation problem, cannot exec %s: ", sys_errlist
[errno
]);
4710 s
= "installation problem, cannot exec %s";
4714 /* More 'friendly' abort that prints the line and file.
4715 config.h can #define abort fancy_abort if you like that sort of thing. */
4720 fatal ("Internal gcc abort.");
4725 /* Output an error message and exit */
4728 fatal
VPROTO((char *format
, ...))
4735 VA_START (ap
, format
);
4738 format
= va_arg (ap
, char*);
4741 fprintf (stderr
, "%s: ", programname
);
4742 vfprintf (stderr
, format
, ap
);
4744 fprintf (stderr
, "\n");
4745 delete_temp_files ();
4750 error
VPROTO((char *format
, ...))
4757 VA_START (ap
, format
);
4760 format
= va_arg (ap
, char*);
4763 fprintf (stderr
, "%s: ", programname
);
4764 vfprintf (stderr
, format
, ap
);
4767 fprintf (stderr
, "\n");
4770 #else /* not HAVE_VPRINTF */
4773 fatal (msg
, arg1
, arg2
)
4774 char *msg
, *arg1
, *arg2
;
4776 error (msg
, arg1
, arg2
);
4777 delete_temp_files ();
4782 error (msg
, arg1
, arg2
)
4783 char *msg
, *arg1
, *arg2
;
4785 fprintf (stderr
, "%s: ", programname
);
4786 fprintf (stderr
, msg
, arg1
, arg2
);
4787 fprintf (stderr
, "\n");
4790 #endif /* not HAVE_VPRINTF */
4794 validate_all_switches ()
4796 struct compiler
*comp
;
4799 struct spec_list
*spec
;
4801 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4804 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4808 if (c
== '%' && *p
== '{')
4809 /* We have a switch spec. */
4810 validate_switches (p
+ 1);
4814 /* look through the linked list of extra specs read from the specs file */
4815 for (spec
= specs
; spec
; spec
= spec
->next
)
4819 if (c
== '%' && *p
== '{')
4820 /* We have a switch spec. */
4821 validate_switches (p
+ 1);
4824 p
= link_command_spec
;
4826 if (c
== '%' && *p
== '{')
4827 /* We have a switch spec. */
4828 validate_switches (p
+ 1);
4830 /* Now notice switches mentioned in the machine-specific specs. */
4834 if (c
== '%' && *p
== '{')
4835 /* We have a switch spec. */
4836 validate_switches (p
+ 1);
4840 if (c
== '%' && *p
== '{')
4841 /* We have a switch spec. */
4842 validate_switches (p
+ 1);
4846 if (c
== '%' && *p
== '{')
4847 /* We have a switch spec. */
4848 validate_switches (p
+ 1);
4850 p
= signed_char_spec
;
4852 if (c
== '%' && *p
== '{')
4853 /* We have a switch spec. */
4854 validate_switches (p
+ 1);
4858 if (c
== '%' && *p
== '{')
4859 /* We have a switch spec. */
4860 validate_switches (p
+ 1);
4864 if (c
== '%' && *p
== '{')
4865 /* We have a switch spec. */
4866 validate_switches (p
+ 1);
4870 if (c
== '%' && *p
== '{')
4871 /* We have a switch spec. */
4872 validate_switches (p
+ 1);
4876 if (c
== '%' && *p
== '{')
4877 /* We have a switch spec. */
4878 validate_switches (p
+ 1);
4882 if (c
== '%' && *p
== '{')
4883 /* We have a switch spec. */
4884 validate_switches (p
+ 1);
4887 /* Look at the switch-name that comes after START
4888 and mark as valid all supplied switches that match it. */
4891 validate_switches (start
)
4894 register char *p
= start
;
4909 while (*p
!= ':' && *p
!= '}') p
++;
4913 else if (p
[-1] == '*')
4915 /* Mark all matching switches as valid. */
4917 for (i
= 0; i
< n_switches
; i
++)
4918 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4919 switches
[i
].valid
= 1;
4923 /* Mark an exact matching switch as valid. */
4924 for (i
= 0; i
< n_switches
; i
++)
4926 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4927 && switches
[i
].part1
[p
- filter
] == 0)
4928 switches
[i
].valid
= 1;
4933 /* Check whether a particular argument was used. */
4942 for (i
= 0; i
< n_switches
; i
++)
4943 if (! strncmp (switches
[i
].part1
, p
, len
)
4944 && strlen (switches
[i
].part1
) == len
)
4949 /* Work out the subdirectory to use based on the
4950 options. The format of multilib_select is a list of elements.
4951 Each element is a subdirectory name followed by a list of options
4952 followed by a semicolon. gcc will consider each line in turn. If
4953 none of the options beginning with an exclamation point are
4954 present, and all of the other options are present, that
4955 subdirectory will be used. */
4960 char *p
= multilib_select
;
4962 char *this_path
, *this_arg
;
4967 /* Ignore newlines. */
4974 /* Get the initial path. */
4982 this_path_len
= p
- this_path
;
4984 /* Check the arguments. */
4999 while (*p
!= ' ' && *p
!= ';')
5006 if (*this_arg
== '!')
5007 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
5009 failed
= ! used_arg (this_arg
, p
- this_arg
);
5017 if (this_path_len
!= 1
5018 || this_path
[0] != '.')
5020 multilib_dir
= xmalloc (this_path_len
+ 1);
5021 strncpy (multilib_dir
, this_path
, this_path_len
);
5022 multilib_dir
[this_path_len
] = '\0';
5031 /* Print out the multiple library subdirectory selection
5032 information. This prints out a series of lines. Each line looks
5033 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5034 required. Only the desired options are printed out, the negative
5035 matches. The options are print without a leading dash. There are
5036 no spaces to make it easy to use the information in the shell.
5037 Each subdirectory is printed only once. This assumes the ordering
5038 generated by the genmultilib script. */
5041 print_multilib_info ()
5043 char *p
= multilib_select
;
5044 char *last_path
, *this_path
;
5045 int last_path_len
, skip
, use_arg
;
5049 /* Ignore newlines. */
5056 /* Get the initial path. */
5065 /* If this is a duplicate, skip it. */
5066 skip
= (p
- this_path
== last_path_len
5067 && ! strncmp (last_path
, this_path
, last_path_len
));
5069 last_path
= this_path
;
5070 last_path_len
= p
- this_path
;
5076 for (p1
= last_path
; p1
< p
; p1
++)
5095 use_arg
= *p
!= '!';
5100 while (*p
!= ' ' && *p
!= ';')