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\
643 "cpp -lang-c++ %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
644 %{C:%{!E:%eGNU C++ does not support -C without using -E}}\
645 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
646 -undef -D__GNUC__=%v1 -D__GNUG__=%v1 -D__cplusplus -D__GNUC_MINOR__=%v2\
647 %{ansi:-trigraphs -$ -D__STRICT_ANSI__} %{!undef:%{!ansi:%p} %P}\
648 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
649 %{traditional-cpp:-traditional} %{trigraphs}\
650 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
651 %i %{!M:%{!MM:%{!E:%{!pipe:%g.ii}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
652 "%{!M:%{!MM:%{!E:cc1plus %{!pipe:%g.ii} %1 %2\
653 %{!Q:-quiet} -dumpbase %b.cc %{d*} %{m*} %{a}\
654 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
655 %{traditional} %{v:-version} %{pg:-p} %{p}\
656 %{f*} %{+e*} %{aux-info*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}}|\n\
659 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
660 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
661 %{!pipe:%g.s} %A\n }}}}"},
662 {".i", "@cpp-output"},
664 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a}\
665 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
666 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
668 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
669 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
670 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
671 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
672 %{!pipe:%g.s} %A\n }}}}"},
673 {".ii", "@c++-cpp-output"},
675 "%{!M:%{!MM:%{!E:cc1plus %i %1 %2 %{!Q:-quiet} %{d*} %{m*} %{a}\
676 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
677 %{traditional} %{v:-version} %{pg:-p} %{p}\
678 %{f*} %{+e*} %{aux-info*}\
679 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
680 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
681 %{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
682 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
683 %{!pipe:%g.s} %A\n }}}}"},
684 {".s", "@assembler"},
686 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
687 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
689 {".S", "@assembler-with-cpp"},
690 {"@assembler-with-cpp",
691 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
692 %{C:%{!E:%eGNU C does not support -C without using -E}}\
693 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
694 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
695 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
696 %{traditional-cpp:-traditional}\
697 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
698 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
699 "%{!M:%{!MM:%{!E:%{!S:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
700 %{c:%W{o*}%{!o*:-o %w%b.o}}%{!c:-o %d%w%u.o}\
701 %{!pipe:%g.s} %A\n }}}}"},
706 "%{!M:%{!MM:%{!E:gnat1 %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet}\
707 -dumpbase %b.ada %{g*} %{O*} %{p} %{pg:-p} %{f*}\
709 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
710 %i %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
711 %{!S:%{!gnatc:%{!gnats:as %{R} %{j} %{J} %{h} %{d2} %a %Y\
712 %{c:%W{o*}%{!o*:-o %w%b.o}}\
713 %{!c:-o %d%w%u.o} %{!pipe:%g.s} %A\n}}}}}} "},
714 /* Mark end of table */
718 /* Number of elements in default_compilers, not counting the terminator. */
720 static int n_default_compilers
721 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
723 /* Here is the spec for running the linker, after compiling all files. */
725 /* -u* was put back because both BSD and SysV seem to support it. */
726 /* %{static:} simply prevents an error message if the target machine
727 doesn't handle -static. */
728 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
729 scripts which exist in user specified directories, or in standard
731 #ifdef LINK_LIBGCC_SPECIAL_1
732 /* Have gcc do the search for libgcc.a, but generate -L options as usual. */
733 static char *link_command_spec
= "\
735 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
736 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
737 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
738 %{L*} %D %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
740 #ifdef LINK_LIBGCC_SPECIAL
741 /* Have gcc do the search for libgcc.a, and don't generate -L options. */
742 static char *link_command_spec
= "\
744 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
745 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
746 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
747 %{L*} %{T*} %o %{!nostdlib:libgcc.a%s %L libgcc.a%s %{!A:%E}}\n }}}}}}";
749 /* Use -L and have the linker do the search for -lgcc. */
750 static char *link_command_spec
= "\
752 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
753 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
754 %{!A:%{!nostartfiles:%{!nostdlib:%S}}} %{static:}\
755 %{L*} %D %{T*} %o %{!nostdlib:-lgcc %L -lgcc %{!A:%E}}\n }}}}}}";
759 /* A vector of options to give to the linker.
760 These options are accumulated by -Xlinker and -Wl,
761 and substituted into the linker command with %X. */
762 static int n_linker_options
;
763 static char **linker_options
;
765 /* A vector of options to give to the assembler.
766 These options are accumulated by -Wa,
767 and substituted into the assembler command with %Y. */
768 static int n_assembler_options
;
769 static char **assembler_options
;
771 /* A vector of options to give to the preprocessor.
772 These options are accumulated by -Wp,
773 and substituted into the preprocessor command with %Z. */
774 static int n_preprocessor_options
;
775 static char **preprocessor_options
;
777 /* Define how to map long options into short ones. */
779 /* This structure describes one mapping. */
782 /* The long option's name. */
784 /* The equivalent short option. */
786 /* Argument info. A string of flag chars; NULL equals no options.
787 a => argument required.
788 o => argument optional.
789 j => join argument to equivalent, making one word.
790 * => require other text after NAME as an argument. */
794 /* This is the table of mappings. Mappings are tried sequentially
795 for each option encountered; the first one that matches, wins. */
797 struct option_map option_map
[] =
799 {"--all-warnings", "-Wall", 0},
800 {"--ansi", "-ansi", 0},
801 {"--assemble", "-S", 0},
802 {"--assert", "-A", "a"},
803 {"--comments", "-C", 0},
804 {"--compile", "-c", 0},
805 {"--debug", "-g", "oj"},
806 {"--define-macro", "-D", "a"},
807 {"--dependencies", "-M", 0},
808 {"--dump", "-d", "a"},
809 {"--dumpbase", "-dumpbase", "a"},
810 {"--entry", "-e", 0},
811 {"--extra-warnings", "-W", 0},
812 {"--for-assembler", "-Wa", "a"},
813 {"--for-linker", "-Xlinker", "a"},
814 {"--force-link", "-u", "a"},
815 {"--imacros", "-imacros", "a"},
816 {"--include", "-include", "a"},
817 {"--include-barrier", "-I-", 0},
818 {"--include-directory", "-I", "a"},
819 {"--include-directory-after", "-idirafter", "a"},
820 {"--include-prefix", "-iprefix", "a"},
821 {"--include-with-prefix", "-iwithprefix", "a"},
822 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
823 {"--include-with-prefix-after", "-iwithprefix", "a"},
824 {"--language", "-x", "a"},
825 {"--library-directory", "-L", "a"},
826 {"--machine", "-m", "aj"},
827 {"--machine-", "-m", "*j"},
828 {"--no-line-commands", "-P", 0},
829 {"--no-precompiled-includes", "-noprecomp", 0},
830 {"--no-standard-includes", "-nostdinc", 0},
831 {"--no-standard-libraries", "-nostdlib", 0},
832 {"--no-warnings", "-w", 0},
833 {"--optimize", "-O", "oj"},
834 {"--output", "-o", "a"},
835 {"--pedantic", "-pedantic", 0},
836 {"--pedantic-errors", "-pedantic-errors", 0},
837 {"--pipe", "-pipe", 0},
838 {"--prefix", "-B", "a"},
839 {"--preprocess", "-E", 0},
840 {"--print-file-name", "-print-file-name=", "aj"},
841 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
842 {"--print-missing-file-dependencies", "-MG", 0},
843 {"--print-multi-lib", "-print-multi-lib", 0},
844 {"--print-multi-directory", "-print-multi-directory", 0},
845 {"--print-prog-name", "-print-prog-name=", "aj"},
846 {"--profile", "-p", 0},
847 {"--profile-blocks", "-a", 0},
848 {"--quiet", "-q", 0},
849 {"--save-temps", "-save-temps", 0},
850 {"--shared", "-shared", 0},
851 {"--silent", "-q", 0},
852 {"--static", "-static", 0},
853 {"--symbolic", "-symbolic", 0},
854 {"--target", "-b", "a"},
855 {"--trace-includes", "-H", 0},
856 {"--traditional", "-traditional", 0},
857 {"--traditional-cpp", "-traditional-cpp", 0},
858 {"--trigraphs", "-trigraphs", 0},
859 {"--undefine-macro", "-U", "a"},
860 {"--use-version", "-V", "a"},
861 {"--user-dependencies", "-MM", 0},
862 {"--verbose", "-v", 0},
863 {"--version", "-dumpversion", 0},
864 {"--warn-", "-W", "*j"},
865 {"--write-dependencies", "-MD", 0},
866 {"--write-user-dependencies", "-MMD", 0},
870 /* Translate the options described by *ARGCP and *ARGVP.
871 Make a new vector and store it back in *ARGVP,
872 and store its length in *ARGVC. */
875 translate_options (argcp
, argvp
)
881 char **argv
= *argvp
;
882 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
886 newv
[newindex
++] = argv
[i
++];
890 /* Translate -- options. */
891 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
893 /* Find a mapping that applies to this option. */
894 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
896 int optlen
= strlen (option_map
[j
].name
);
897 int arglen
= strlen (argv
[i
]);
898 int complen
= arglen
> optlen
? optlen
: arglen
;
899 char *arginfo
= option_map
[j
].arg_info
;
904 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
911 k
< sizeof (option_map
) / sizeof (option_map
[0]);
913 if (strlen (option_map
[k
].name
) >= arglen
914 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
916 error ("Ambiguous abbreviation %s", argv
[i
]);
920 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
926 /* If the option has an argument, accept that. */
927 if (argv
[i
][optlen
] == '=')
928 arg
= argv
[i
] + optlen
+ 1;
930 /* If this mapping requires extra text at end of name,
931 accept that as "argument". */
932 else if (index (arginfo
, '*') != 0)
933 arg
= argv
[i
] + optlen
;
935 /* Otherwise, extra text at end means mismatch.
936 Try other mappings. */
941 else if (index (arginfo
, '*') != 0)
943 error ("Incomplete `%s' option", option_map
[j
].name
);
947 /* Handle arguments. */
948 if (index (arginfo
, 'a') != 0)
954 error ("Missing argument to `%s' option",
962 else if (index (arginfo
, '*') != 0)
964 else if (index (arginfo
, 'o') == 0)
967 error ("Extraneous argument to `%s' option",
972 /* Store the translation as one argv elt or as two. */
973 if (arg
!= 0 && index (arginfo
, 'j') != 0)
974 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
);
977 newv
[newindex
++] = option_map
[j
].equivalent
;
978 newv
[newindex
++] = arg
;
981 newv
[newindex
++] = option_map
[j
].equivalent
;
989 /* Handle old-fashioned options--just copy them through,
990 with their arguments. */
991 else if (argv
[i
][0] == '-')
993 char *p
= argv
[i
] + 1;
997 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
998 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
999 else if (WORD_SWITCH_TAKES_ARG (p
))
1000 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1001 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1004 else if (! strcmp (p
, "Xlinker"))
1007 /* Watch out for an option at the end of the command line that
1008 is missing arguments, and avoid skipping past the end of the
1010 if (nskip
+ i
> argc
)
1015 newv
[newindex
++] = argv
[i
++];
1020 /* Ordinary operands, or +e options. */
1021 newv
[newindex
++] = argv
[i
++];
1030 /* Read compilation specs from a file named FILENAME,
1031 replacing the default ones.
1033 A suffix which starts with `*' is a definition for
1034 one of the machine-specific sub-specs. The "suffix" should be
1035 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1036 The corresponding spec is stored in asm_spec, etc.,
1037 rather than in the `compilers' vector.
1039 Anything invalid in the file is a fatal error. */
1042 read_specs (filename
)
1046 struct stat statbuf
;
1051 fprintf (stderr
, "Reading specs from %s\n", filename
);
1053 /* Open and stat the file. */
1054 desc
= open (filename
, O_RDONLY
, 0);
1056 pfatal_with_name (filename
);
1057 if (stat (filename
, &statbuf
) < 0)
1058 pfatal_with_name (filename
);
1060 /* Read contents of file into BUFFER. */
1061 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1062 read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1063 buffer
[statbuf
.st_size
] = 0;
1066 /* Scan BUFFER for specs, putting them in the vector. */
1072 char *in
, *out
, *p1
, *p2
;
1074 /* Advance P in BUFFER to the next nonblank nocomment line. */
1075 p
= skip_whitespace (p
);
1079 /* Find the colon that should end the suffix. */
1081 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1082 /* The colon shouldn't be missing. */
1084 fatal ("specs file malformed after %d characters", p1
- buffer
);
1085 /* Skip back over trailing whitespace. */
1087 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1088 /* Copy the suffix to a string. */
1089 suffix
= save_string (p
, p2
- p
);
1090 /* Find the next line. */
1091 p
= skip_whitespace (p1
+ 1);
1093 fatal ("specs file malformed after %d characters", p
- buffer
);
1095 /* Find next blank line. */
1096 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1097 /* Specs end at the blank line and do not include the newline. */
1098 spec
= save_string (p
, p1
- p
);
1101 /* Delete backslash-newline sequences from the spec. */
1106 if (in
[0] == '\\' && in
[1] == '\n')
1108 else if (in
[0] == '#')
1110 while (*in
&& *in
!= '\n') in
++;
1117 if (suffix
[0] == '*')
1119 if (! strcmp (suffix
, "*link_command"))
1120 link_command_spec
= spec
;
1122 set_spec (suffix
+ 1, spec
);
1126 /* Add this pair to the vector. */
1128 = ((struct compiler
*)
1129 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1130 compilers
[n_compilers
].suffix
= suffix
;
1131 bzero ((char *) compilers
[n_compilers
].spec
,
1132 sizeof compilers
[n_compilers
].spec
);
1133 compilers
[n_compilers
].spec
[0] = spec
;
1135 bzero ((char *) &compilers
[n_compilers
],
1136 sizeof compilers
[n_compilers
]);
1140 link_command_spec
= spec
;
1143 if (link_command_spec
== 0)
1144 fatal ("spec file has no spec for linking");
1153 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1154 be considered whitespace. */
1155 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1157 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1161 while (*p
!= '\n') p
++;
1171 /* Structure to keep track of the specs that have been defined so far. These
1172 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1176 char *name
; /* Name of the spec. */
1177 char *spec
; /* The spec itself. */
1178 struct spec_list
*next
; /* Next spec in linked list. */
1181 /* List of specs that have been defined so far. */
1183 static struct spec_list
*specs
= (struct spec_list
*) 0;
1185 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1186 removed; If the spec starts with a + then SPEC is added to the end of the
1190 set_spec (name
, spec
)
1194 struct spec_list
*sl
;
1197 /* See if the spec already exists */
1198 for (sl
= specs
; sl
; sl
= sl
->next
)
1199 if (strcmp (sl
->name
, name
) == 0)
1204 /* Not found - make it */
1205 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1206 sl
->name
= save_string (name
, strlen (name
));
1207 sl
->spec
= save_string ("", 0);
1212 old_spec
= sl
->spec
;
1213 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1214 sl
->spec
= concat (old_spec
, spec
+ 1);
1216 sl
->spec
= save_string (spec
, strlen (spec
));
1218 if (! strcmp (name
, "asm"))
1219 asm_spec
= sl
->spec
;
1220 else if (! strcmp (name
, "asm_final"))
1221 asm_final_spec
= sl
->spec
;
1222 else if (! strcmp (name
, "cc1"))
1223 cc1_spec
= sl
->spec
;
1224 else if (! strcmp (name
, "cc1plus"))
1225 cc1plus_spec
= sl
->spec
;
1226 else if (! strcmp (name
, "cpp"))
1227 cpp_spec
= sl
->spec
;
1228 else if (! strcmp (name
, "endfile"))
1229 endfile_spec
= sl
->spec
;
1230 else if (! strcmp (name
, "lib"))
1231 lib_spec
= sl
->spec
;
1232 else if (! strcmp (name
, "link"))
1233 link_spec
= sl
->spec
;
1234 else if (! strcmp (name
, "predefines"))
1235 cpp_predefines
= sl
->spec
;
1236 else if (! strcmp (name
, "signed_char"))
1237 signed_char_spec
= sl
->spec
;
1238 else if (! strcmp (name
, "startfile"))
1239 startfile_spec
= sl
->spec
;
1240 else if (! strcmp (name
, "switches_need_spaces"))
1241 switches_need_spaces
= sl
->spec
;
1242 else if (! strcmp (name
, "cross_compile"))
1243 cross_compile
= atoi (sl
->spec
);
1244 else if (! strcmp (name
, "multilib"))
1245 multilib_select
= sl
->spec
;
1246 /* Free the old spec */
1251 /* Accumulate a command (program name and args), and run it. */
1253 /* Vector of pointers to arguments in the current line of specifications. */
1255 static char **argbuf
;
1257 /* Number of elements allocated in argbuf. */
1259 static int argbuf_length
;
1261 /* Number of elements in argbuf currently in use (containing args). */
1263 static int argbuf_index
;
1265 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1266 temp file. Used only if MKTEMP_EACH_FILE. */
1268 static struct temp_name
{
1269 char *suffix
; /* suffix associated with the code. */
1270 int length
; /* strlen (suffix). */
1271 int unique
; /* Indicates whether %g or %u/%U was used. */
1272 char *filename
; /* associated filename. */
1273 int filename_length
; /* strlen (filename). */
1274 struct temp_name
*next
;
1277 /* Number of commands executed so far. */
1279 static int execution_count
;
1281 /* Number of commands that exited with a signal. */
1283 static int signal_count
;
1285 /* Name with which this program was invoked. */
1287 static char *programname
;
1289 /* Structures to keep track of prefixes to try when looking for files. */
1293 char *prefix
; /* String to prepend to the path. */
1294 struct prefix_list
*next
; /* Next in linked list. */
1295 int require_machine_suffix
; /* Don't use without machine_suffix. */
1296 /* 2 means try both machine_suffix and just_machine_suffix. */
1297 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1302 struct prefix_list
*plist
; /* List of prefixes to try */
1303 int max_len
; /* Max length of a prefix in PLIST */
1304 char *name
; /* Name of this list (used in config stuff) */
1307 /* List of prefixes to try when looking for executables. */
1309 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1311 /* List of prefixes to try when looking for startup (crt0) files. */
1313 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1315 /* List of prefixes to try when looking for include files. */
1317 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1319 /* Suffix to attach to directories searched for commands.
1320 This looks like `MACHINE/VERSION/'. */
1322 static char *machine_suffix
= 0;
1324 /* Suffix to attach to directories searched for commands.
1325 This is just `MACHINE/'. */
1327 static char *just_machine_suffix
= 0;
1329 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1331 static char *gcc_exec_prefix
;
1333 /* Default prefixes to attach to command names. */
1335 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1336 #undef MD_EXEC_PREFIX
1337 #undef MD_STARTFILE_PREFIX
1338 #undef MD_STARTFILE_PREFIX_1
1341 #ifndef STANDARD_EXEC_PREFIX
1342 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1343 #endif /* !defined STANDARD_EXEC_PREFIX */
1345 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1346 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1347 #ifdef MD_EXEC_PREFIX
1348 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1351 #ifndef STANDARD_STARTFILE_PREFIX
1352 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1353 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1355 #ifdef MD_STARTFILE_PREFIX
1356 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1358 #ifdef MD_STARTFILE_PREFIX_1
1359 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1361 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1362 static char *standard_startfile_prefix_1
= "/lib/";
1363 static char *standard_startfile_prefix_2
= "/usr/lib/";
1365 #ifndef TOOLDIR_BASE_PREFIX
1366 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1368 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1369 static char *tooldir_prefix
;
1371 /* Subdirectory to use for locating libraries. Set by
1372 set_multilib_dir based on the compilation options. */
1374 static char *multilib_dir
;
1376 /* Clear out the vector of arguments (after a command is executed). */
1384 /* Add one argument to the vector at the end.
1385 This is done when a space is seen or at the end of the line.
1386 If DELETE_ALWAYS is nonzero, the arg is a filename
1387 and the file should be deleted eventually.
1388 If DELETE_FAILURE is nonzero, the arg is a filename
1389 and the file should be deleted if this compilation fails. */
1392 store_arg (arg
, delete_always
, delete_failure
)
1394 int delete_always
, delete_failure
;
1396 if (argbuf_index
+ 1 == argbuf_length
)
1398 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1401 argbuf
[argbuf_index
++] = arg
;
1402 argbuf
[argbuf_index
] = 0;
1404 if (delete_always
|| delete_failure
)
1405 record_temp_file (arg
, delete_always
, delete_failure
);
1408 /* Record the names of temporary files we tell compilers to write,
1409 and delete them at the end of the run. */
1411 /* This is the common prefix we use to make temp file names.
1412 It is chosen once for each run of this program.
1413 It is substituted into a spec by %g.
1414 Thus, all temp file names contain this prefix.
1415 In practice, all temp file names start with this prefix.
1417 This prefix comes from the envvar TMPDIR if it is defined;
1418 otherwise, from the P_tmpdir macro if that is defined;
1419 otherwise, in /usr/tmp or /tmp. */
1421 static char *temp_filename
;
1423 /* Length of the prefix. */
1425 static int temp_filename_length
;
1427 /* Define the list of temporary files to delete. */
1432 struct temp_file
*next
;
1435 /* Queue of files to delete on success or failure of compilation. */
1436 static struct temp_file
*always_delete_queue
;
1437 /* Queue of files to delete on failure of compilation. */
1438 static struct temp_file
*failure_delete_queue
;
1440 /* Record FILENAME as a file to be deleted automatically.
1441 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1442 otherwise delete it in any case.
1443 FAIL_DELETE nonzero means delete it if a compilation step fails;
1444 otherwise delete it in any case. */
1447 record_temp_file (filename
, always_delete
, fail_delete
)
1452 register char *name
;
1453 name
= xmalloc (strlen (filename
) + 1);
1454 strcpy (name
, filename
);
1458 register struct temp_file
*temp
;
1459 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1460 if (! strcmp (name
, temp
->name
))
1462 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1463 temp
->next
= always_delete_queue
;
1465 always_delete_queue
= temp
;
1471 register struct temp_file
*temp
;
1472 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1473 if (! strcmp (name
, temp
->name
))
1475 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1476 temp
->next
= failure_delete_queue
;
1478 failure_delete_queue
= temp
;
1483 /* Delete all the temporary files whose names we previously recorded. */
1486 delete_if_ordinary (name
)
1493 printf ("Delete %s? (y or n) ", name
);
1497 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1498 if (i
== 'y' || i
== 'Y')
1500 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1501 if (unlink (name
) < 0)
1503 perror_with_name (name
);
1507 delete_temp_files ()
1509 register struct temp_file
*temp
;
1511 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1512 delete_if_ordinary (temp
->name
);
1513 always_delete_queue
= 0;
1516 /* Delete all the files to be deleted on error. */
1519 delete_failure_queue ()
1521 register struct temp_file
*temp
;
1523 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1524 delete_if_ordinary (temp
->name
);
1528 clear_failure_queue ()
1530 failure_delete_queue
= 0;
1533 /* Compute a string to use as the base of all temporary file names.
1534 It is substituted for %g. */
1537 choose_temp_base_try (try, base
)
1544 else if (try == (char *)0)
1546 else if (access (try, R_OK
| W_OK
) != 0)
1559 base
= choose_temp_base_try (getenv ("TMPDIR"), base
);
1560 base
= choose_temp_base_try (getenv ("TMP"), base
);
1561 base
= choose_temp_base_try (getenv ("TEMP"), base
);
1564 base
= choose_temp_base_try (P_tmpdir
, base
);
1567 base
= choose_temp_base_try (concat4 (dir_separator_str
, "usr",
1568 dir_separator_str
, "tmp"),
1570 base
= choose_temp_base_try (concat (dir_separator_str
, "tmp"), base
);
1572 /* If all else fails, use the current directory! */
1573 if (base
== (char *)0) base
= concat(".", dir_separator_str
);
1575 len
= strlen (base
);
1576 temp_filename
= xmalloc (len
+ strlen (concat (dir_separator_str
,
1578 strcpy (temp_filename
, base
);
1579 if (len
> 0 && temp_filename
[len
-1] != '/'
1580 && temp_filename
[len
-1] != DIR_SEPARATOR
)
1581 temp_filename
[len
++] = DIR_SEPARATOR
;
1582 strcpy (temp_filename
+ len
, "ccXXXXXX");
1584 mktemp (temp_filename
);
1585 temp_filename_length
= strlen (temp_filename
);
1586 if (temp_filename_length
== 0)
1591 /* Routine to add variables to the environment. We do this to pass
1592 the pathname of the gcc driver, and the directories search to the
1593 collect2 program, which is being run as ld. This way, we can be
1594 sure of executing the right compiler when collect2 wants to build
1595 constructors and destructors. Since the environment variables we
1596 use come from an obstack, we don't have to worry about allocating
1605 #ifndef VMS /* nor about VMS */
1607 extern char **environ
;
1608 char **old_environ
= environ
;
1612 int str_len
= strlen (str
);
1616 while ((ch
= *p
++) != '\0' && ch
!= '=')
1622 /* Search for replacing an existing environment variable, and
1623 count the number of total environment variables. */
1624 for (envp
= old_environ
; *envp
; envp
++)
1627 if (!strncmp (str
, *envp
, name_len
))
1634 /* Add a new environment variable */
1635 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1637 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1638 sizeof (char *) * (num_envs
+1));
1643 #endif /* HAVE_PUTENV */
1646 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1649 putenv_from_prefixes (paths
, env_var
)
1650 struct path_prefix
*paths
;
1653 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1655 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1656 int first_time
= TRUE
;
1657 struct prefix_list
*pprefix
;
1659 obstack_grow (&collect_obstack
, env_var
, strlen (env_var
));
1661 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1663 int len
= strlen (pprefix
->prefix
);
1666 && is_directory (pprefix
->prefix
, machine_suffix
, 0))
1669 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1672 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1673 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1676 if (just_machine_suffix
1677 && pprefix
->require_machine_suffix
== 2
1678 && is_directory (pprefix
->prefix
, just_machine_suffix
, 0))
1681 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1684 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1685 obstack_grow (&collect_obstack
, just_machine_suffix
,
1689 if (!pprefix
->require_machine_suffix
)
1692 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1695 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1698 obstack_1grow (&collect_obstack
, '\0');
1699 putenv (obstack_finish (&collect_obstack
));
1703 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1704 access to check permissions.
1705 Return 0 if not found, otherwise return its name, allocated with malloc. */
1708 find_a_file (pprefix
, name
, mode
)
1709 struct path_prefix
*pprefix
;
1714 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1715 struct prefix_list
*pl
;
1716 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1719 len
+= strlen (machine_suffix
);
1721 temp
= xmalloc (len
);
1723 /* Determine the filename to execute (special case for absolute paths). */
1725 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1727 if (access (name
, mode
))
1729 strcpy (temp
, name
);
1734 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1738 /* Some systems have a suffix for executable files.
1739 So try appending that first. */
1740 if (file_suffix
[0] != 0)
1742 strcpy (temp
, pl
->prefix
);
1743 strcat (temp
, machine_suffix
);
1744 strcat (temp
, name
);
1745 strcat (temp
, file_suffix
);
1746 if (access (temp
, mode
) == 0)
1748 if (pl
->used_flag_ptr
!= 0)
1749 *pl
->used_flag_ptr
= 1;
1754 /* Now try just the name. */
1755 strcpy (temp
, pl
->prefix
);
1756 strcat (temp
, machine_suffix
);
1757 strcat (temp
, name
);
1758 if (access (temp
, mode
) == 0)
1760 if (pl
->used_flag_ptr
!= 0)
1761 *pl
->used_flag_ptr
= 1;
1766 /* Certain prefixes are tried with just the machine type,
1767 not the version. This is used for finding as, ld, etc. */
1768 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1770 /* Some systems have a suffix for executable files.
1771 So try appending that first. */
1772 if (file_suffix
[0] != 0)
1774 strcpy (temp
, pl
->prefix
);
1775 strcat (temp
, just_machine_suffix
);
1776 strcat (temp
, name
);
1777 strcat (temp
, file_suffix
);
1778 if (access (temp
, mode
) == 0)
1780 if (pl
->used_flag_ptr
!= 0)
1781 *pl
->used_flag_ptr
= 1;
1786 strcpy (temp
, pl
->prefix
);
1787 strcat (temp
, just_machine_suffix
);
1788 strcat (temp
, name
);
1789 if (access (temp
, mode
) == 0)
1791 if (pl
->used_flag_ptr
!= 0)
1792 *pl
->used_flag_ptr
= 1;
1797 /* Certain prefixes can't be used without the machine suffix
1798 when the machine or version is explicitly specified. */
1799 if (!pl
->require_machine_suffix
)
1801 /* Some systems have a suffix for executable files.
1802 So try appending that first. */
1803 if (file_suffix
[0] != 0)
1805 strcpy (temp
, pl
->prefix
);
1806 strcat (temp
, name
);
1807 strcat (temp
, file_suffix
);
1808 if (access (temp
, mode
) == 0)
1810 if (pl
->used_flag_ptr
!= 0)
1811 *pl
->used_flag_ptr
= 1;
1816 strcpy (temp
, pl
->prefix
);
1817 strcat (temp
, name
);
1818 if (access (temp
, mode
) == 0)
1820 if (pl
->used_flag_ptr
!= 0)
1821 *pl
->used_flag_ptr
= 1;
1831 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1832 at the start of the list, otherwise it goes at the end.
1834 If WARN is nonzero, we will warn if no file is found
1835 through this prefix. WARN should point to an int
1836 which will be set to 1 if this entry is used.
1838 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1839 the complete value of machine_suffix.
1840 2 means try both machine_suffix and just_machine_suffix. */
1843 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1844 struct path_prefix
*pprefix
;
1847 int require_machine_suffix
;
1850 struct prefix_list
*pl
, **prev
;
1853 if (!first
&& pprefix
->plist
)
1855 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1860 prev
= &pprefix
->plist
;
1862 /* Keep track of the longest prefix */
1864 len
= strlen (prefix
);
1865 if (len
> pprefix
->max_len
)
1866 pprefix
->max_len
= len
;
1868 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1869 pl
->prefix
= save_string (prefix
, len
);
1870 pl
->require_machine_suffix
= require_machine_suffix
;
1871 pl
->used_flag_ptr
= warn
;
1878 pl
->next
= (struct prefix_list
*) 0;
1882 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1885 unused_prefix_warnings (pprefix
)
1886 struct path_prefix
*pprefix
;
1888 struct prefix_list
*pl
= pprefix
->plist
;
1892 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1894 error ("file path prefix `%s' never used",
1896 /* Prevent duplicate warnings. */
1897 *pl
->used_flag_ptr
= 1;
1903 /* Get rid of all prefixes built up so far in *PLISTP. */
1906 free_path_prefix (pprefix
)
1907 struct path_prefix
*pprefix
;
1909 struct prefix_list
*pl
= pprefix
->plist
;
1910 struct prefix_list
*temp
;
1916 free (temp
->prefix
);
1917 free ((char *) temp
);
1919 pprefix
->plist
= (struct prefix_list
*) 0;
1922 /* stdin file number. */
1923 #define STDIN_FILE_NO 0
1925 /* stdout file number. */
1926 #define STDOUT_FILE_NO 1
1928 /* value of `pipe': port index for reading. */
1931 /* value of `pipe': port index for writing. */
1932 #define WRITE_PORT 1
1934 /* Pipe waiting from last process, to be used as input for the next one.
1935 Value is STDIN_FILE_NO if no pipe is waiting
1936 (i.e. the next command is the first of a group). */
1938 static int last_pipe_input
;
1940 /* Fork one piped subcommand. FUNC is the system call to use
1941 (either execv or execvp). ARGV is the arg vector to use.
1942 NOT_LAST is nonzero if this is not the last subcommand
1943 (i.e. its output should be piped to the next one.) */
1947 #include <process.h>
1949 pexecute (search_flag
, program
, argv
, not_last
)
1956 int i
= (search_flag
? spawnv
: spawnvp
) (1, program
, argv
);
1960 int i
, el
= search_flag
? 0 : 4;
1962 scmd
= (char *)malloc (strlen (program
) + strlen (temp_filename
) + 6 + el
);
1963 rf
= scmd
+ strlen(program
) + 2 + el
;
1964 sprintf (scmd
, "%s%s @%s.gp", program
,
1965 (search_flag
? "" : ".exe"), temp_filename
);
1966 argfile
= fopen (rf
, "w");
1968 pfatal_with_name (rf
);
1970 for (i
=1; argv
[i
]; i
++)
1973 for (cp
= argv
[i
]; *cp
; cp
++)
1975 if (*cp
== '"' || *cp
== '\'' || *cp
== '\\' || isspace (*cp
))
1976 fputc ('\\', argfile
);
1977 fputc (*cp
, argfile
);
1979 fputc ('\n', argfile
);
1990 perror_exec (program
);
1991 return MIN_FATAL_STATUS
<< 8;
1998 #if !defined(__MSDOS__) && !defined(OS2) && !defined(WINNT)
2001 pexecute (search_flag
, program
, argv
, not_last
)
2007 int (*func
)() = (search_flag
? execv
: execvp
);
2010 int input_desc
= last_pipe_input
;
2011 int output_desc
= STDOUT_FILE_NO
;
2012 int retries
, sleep_interval
;
2014 /* If this isn't the last process, make a pipe for its output,
2015 and record it as waiting to be the input to the next process. */
2019 if (pipe (pdes
) < 0)
2020 pfatal_with_name ("pipe");
2021 output_desc
= pdes
[WRITE_PORT
];
2022 last_pipe_input
= pdes
[READ_PORT
];
2025 last_pipe_input
= STDIN_FILE_NO
;
2027 /* Fork a subprocess; wait and retry if it fails. */
2029 for (retries
= 0; retries
< 4; retries
++)
2034 sleep (sleep_interval
);
2035 sleep_interval
*= 2;
2042 pfatal_with_name ("fork");
2044 pfatal_with_name ("vfork");
2050 /* Move the input and output pipes into place, if nec. */
2051 if (input_desc
!= STDIN_FILE_NO
)
2053 close (STDIN_FILE_NO
);
2057 if (output_desc
!= STDOUT_FILE_NO
)
2059 close (STDOUT_FILE_NO
);
2061 close (output_desc
);
2064 /* Close the parent's descs that aren't wanted here. */
2065 if (last_pipe_input
!= STDIN_FILE_NO
)
2066 close (last_pipe_input
);
2068 /* Exec the program. */
2069 (*func
) (program
, argv
);
2070 perror_exec (program
);
2076 /* In the parent, after forking.
2077 Close the descriptors that we made for this child. */
2078 if (input_desc
!= STDIN_FILE_NO
)
2080 if (output_desc
!= STDOUT_FILE_NO
)
2081 close (output_desc
);
2083 /* Return child's process number. */
2088 #endif /* not __MSDOS__ and not OS2 */
2090 #if defined(OS2) || defined(WINNT)
2100 for (i
= 1; argvec
[i
] != 0; i
++)
2103 char *temp
, *newtemp
;
2106 len
= strlen (temp
);
2107 for (j
= 0; j
< len
; j
++)
2111 newtemp
= xmalloc (len
+ 2);
2112 strncpy (newtemp
, temp
, j
);
2114 strncpy (&newtemp
[j
+1], &temp
[j
], len
-j
);
2115 newtemp
[len
+1] = 0;
2129 #define FIX_ARGV(a) fix_argv(a)
2133 #define FIX_ARGV(a) a
2135 #endif /* OS2 or WINNT */
2138 pexecute (search_flag
, program
, argv
, not_last
)
2144 return (search_flag
? spawnv
: spawnvp
) (1, program
, FIX_ARGV (argv
));
2146 #endif /* OS2 or WINNT */
2149 /* Execute the command specified by the arguments on the current line of spec.
2150 When using pipes, this includes several piped-together commands
2151 with `|' between them.
2153 Return 0 if successful, -1 if failed. */
2159 int n_commands
; /* # of command. */
2163 char *prog
; /* program name. */
2164 char **argv
; /* vector of args. */
2165 int pid
; /* pid of process for this command. */
2168 struct command
*commands
; /* each command buffer with above info. */
2170 /* Count # of piped commands. */
2171 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2172 if (strcmp (argbuf
[i
], "|") == 0)
2175 /* Get storage for each command. */
2177 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2179 /* Split argbuf into its separate piped processes,
2180 and record info about each one.
2181 Also search for the programs that are to be run. */
2183 commands
[0].prog
= argbuf
[0]; /* first command. */
2184 commands
[0].argv
= &argbuf
[0];
2185 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2187 commands
[0].argv
[0] = string
;
2189 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2190 if (strcmp (argbuf
[i
], "|") == 0)
2191 { /* each command. */
2193 fatal ("-pipe not supported under MS-DOS");
2195 argbuf
[i
] = 0; /* termination of command args. */
2196 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2197 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2198 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2200 commands
[n_commands
].argv
[0] = string
;
2204 argbuf
[argbuf_index
] = 0;
2206 /* If -v, print what we are about to do, and maybe query. */
2210 /* Print each piped command as a separate line. */
2211 for (i
= 0; i
< n_commands
; i
++)
2215 for (j
= commands
[i
].argv
; *j
; j
++)
2216 fprintf (stderr
, " %s", *j
);
2218 /* Print a pipe symbol after all but the last command. */
2219 if (i
+ 1 != n_commands
)
2220 fprintf (stderr
, " |");
2221 fprintf (stderr
, "\n");
2225 fprintf (stderr
, "\nGo ahead? (y or n) ");
2229 while (getchar () != '\n') ;
2230 if (i
!= 'y' && i
!= 'Y')
2235 /* Run each piped subprocess. */
2237 last_pipe_input
= STDIN_FILE_NO
;
2238 for (i
= 0; i
< n_commands
; i
++)
2240 char *string
= commands
[i
].argv
[0];
2242 commands
[i
].pid
= pexecute (string
!= commands
[i
].prog
,
2243 string
, commands
[i
].argv
,
2244 i
+ 1 < n_commands
);
2246 if (string
!= commands
[i
].prog
)
2252 /* Wait for all the subprocesses to finish.
2253 We don't care what order they finish in;
2254 we know that N_COMMANDS waits will get them all. */
2259 for (i
= 0; i
< n_commands
; i
++)
2263 char *prog
= "unknown";
2266 status
= pid
= commands
[i
].pid
;
2269 pid
= cwait (&status
, commands
[i
].pid
, WAIT_CHILD
);
2271 pid
= wait (&status
);
2280 for (j
= 0; j
< n_commands
; j
++)
2281 if (commands
[j
].pid
== pid
)
2282 prog
= commands
[j
].prog
;
2284 if (WIFSIGNALED (status
))
2286 fatal ("Internal compiler error: program %s got fatal signal %d",
2287 prog
, WTERMSIG (status
));
2291 else if (WIFEXITED (status
)
2292 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2300 /* Find all the switches given to us
2301 and make a vector describing them.
2302 The elements of the vector are strings, one per switch given.
2303 If a switch uses following arguments, then the `part1' field
2304 is the switch itself and the `args' field
2305 is a null-terminated vector containing the following arguments.
2306 The `live_cond' field is 1 if the switch is true in a conditional spec,
2307 -1 if false (overridden by a later switch), and is initialized to zero.
2308 The `valid' field is nonzero if any spec has looked at this switch;
2309 if it remains zero at the end of the run, it must be meaningless. */
2319 static struct switchstr
*switches
;
2321 static int n_switches
;
2329 /* Also a vector of input files specified. */
2331 static struct infile
*infiles
;
2333 static int n_infiles
;
2335 /* And a vector of corresponding output files is made up later. */
2337 static char **outfiles
;
2339 /* Create the vector `switches' and its contents.
2340 Store its length in `n_switches'. */
2343 process_command (argc
, argv
)
2349 char *spec_lang
= 0;
2350 int last_language_n_infiles
;
2352 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2357 /* Figure compiler version from version string. */
2359 compiler_version
= save_string (version_string
, strlen (version_string
));
2360 for (temp
= compiler_version
; *temp
; ++temp
)
2369 /* Set up the default search paths. */
2371 if (gcc_exec_prefix
)
2373 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2374 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2377 /* COMPILER_PATH and LIBRARY_PATH have values
2378 that are lists of directory names with colons. */
2380 temp
= getenv ("COMPILER_PATH");
2383 char *startp
, *endp
;
2384 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2386 startp
= endp
= temp
;
2389 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2391 strncpy (nstore
, startp
, endp
-startp
);
2393 strcpy (nstore
, concat (".", dir_separator_str
));
2394 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2396 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2397 nstore
[endp
-startp
+1] = 0;
2400 nstore
[endp
-startp
] = 0;
2401 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2404 endp
= startp
= endp
+ 1;
2411 temp
= getenv ("LIBRARY_PATH");
2414 char *startp
, *endp
;
2415 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2417 startp
= endp
= temp
;
2420 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2422 strncpy (nstore
, startp
, endp
-startp
);
2424 strcpy (nstore
, concat (".", dir_separator_str
));
2425 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2427 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2428 nstore
[endp
-startp
+1] = 0;
2431 nstore
[endp
-startp
] = 0;
2432 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2435 endp
= startp
= endp
+ 1;
2442 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2443 temp
= getenv ("LPATH");
2446 char *startp
, *endp
;
2447 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2449 startp
= endp
= temp
;
2452 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2454 strncpy (nstore
, startp
, endp
-startp
);
2456 strcpy (nstore
, concat (".", dir_separator_str
));
2457 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2459 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2460 nstore
[endp
-startp
+1] = 0;
2463 nstore
[endp
-startp
] = 0;
2464 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2467 endp
= startp
= endp
+ 1;
2474 /* Convert new-style -- options to old-style. */
2475 translate_options (&argc
, &argv
);
2477 /* Scan argv twice. Here, the first time, just count how many switches
2478 there will be in their vector, and how many input files in theirs.
2479 Here we also parse the switches that cc itself uses (e.g. -v). */
2481 for (i
= 1; i
< argc
; i
++)
2483 if (! strcmp (argv
[i
], "-dumpspecs"))
2485 printf ("*asm:\n%s\n\n", asm_spec
);
2486 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2487 printf ("*cpp:\n%s\n\n", cpp_spec
);
2488 printf ("*cc1:\n%s\n\n", cc1_spec
);
2489 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2490 printf ("*endfile:\n%s\n\n", endfile_spec
);
2491 printf ("*link:\n%s\n\n", link_spec
);
2492 printf ("*lib:\n%s\n\n", lib_spec
);
2493 printf ("*startfile:\n%s\n\n", startfile_spec
);
2494 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2495 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2496 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2497 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2498 printf ("*multilib:\n%s\n\n", multilib_select
);
2502 else if (! strcmp (argv
[i
], "-dumpversion"))
2504 printf ("%s\n", version_string
);
2507 else if (! strcmp (argv
[i
], "-dumpmachine"))
2509 printf ("%s\n", spec_machine
);
2512 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2513 print_file_name
= "libgcc.a";
2514 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2515 print_file_name
= argv
[i
] + 17;
2516 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2517 print_prog_name
= argv
[i
] + 17;
2518 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2519 print_multi_lib
= 1;
2520 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2521 print_multi_directory
= 1;
2522 else if (! strcmp (argv
[i
], "-Xlinker"))
2524 /* Pass the argument of this option to the linker when we link. */
2527 fatal ("argument to `-Xlinker' is missing");
2530 if (!linker_options
)
2532 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2535 = (char **) xrealloc (linker_options
,
2536 n_linker_options
* sizeof (char **));
2538 linker_options
[n_linker_options
- 1] = argv
[++i
];
2540 else if (! strncmp (argv
[i
], "-Wl,", 4))
2543 /* Pass the rest of this option to the linker when we link. */
2546 if (!linker_options
)
2548 = (char **) xmalloc (n_linker_options
* sizeof (char **));
2551 = (char **) xrealloc (linker_options
,
2552 n_linker_options
* sizeof (char **));
2554 /* Split the argument at commas. */
2556 for (j
= 4; argv
[i
][j
]; j
++)
2557 if (argv
[i
][j
] == ',')
2559 linker_options
[n_linker_options
- 1]
2560 = save_string (argv
[i
] + prev
, j
- prev
);
2563 = (char **) xrealloc (linker_options
,
2564 n_linker_options
* sizeof (char **));
2567 /* Record the part after the last comma. */
2568 linker_options
[n_linker_options
- 1] = argv
[i
] + prev
;
2570 else if (! strncmp (argv
[i
], "-Wa,", 4))
2573 /* Pass the rest of this option to the assembler. */
2575 n_assembler_options
++;
2576 if (!assembler_options
)
2578 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2581 = (char **) xrealloc (assembler_options
,
2582 n_assembler_options
* sizeof (char **));
2584 /* Split the argument at commas. */
2586 for (j
= 4; argv
[i
][j
]; j
++)
2587 if (argv
[i
][j
] == ',')
2589 assembler_options
[n_assembler_options
- 1]
2590 = save_string (argv
[i
] + prev
, j
- prev
);
2591 n_assembler_options
++;
2593 = (char **) xrealloc (assembler_options
,
2594 n_assembler_options
* sizeof (char **));
2597 /* Record the part after the last comma. */
2598 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2600 else if (! strncmp (argv
[i
], "-Wp,", 4))
2603 /* Pass the rest of this option to the preprocessor. */
2605 n_preprocessor_options
++;
2606 if (!preprocessor_options
)
2607 preprocessor_options
2608 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2610 preprocessor_options
2611 = (char **) xrealloc (preprocessor_options
,
2612 n_preprocessor_options
* sizeof (char **));
2614 /* Split the argument at commas. */
2616 for (j
= 4; argv
[i
][j
]; j
++)
2617 if (argv
[i
][j
] == ',')
2619 preprocessor_options
[n_preprocessor_options
- 1]
2620 = save_string (argv
[i
] + prev
, j
- prev
);
2621 n_preprocessor_options
++;
2622 preprocessor_options
2623 = (char **) xrealloc (preprocessor_options
,
2624 n_preprocessor_options
* sizeof (char **));
2627 /* Record the part after the last comma. */
2628 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2630 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2631 /* The +e options to the C++ front-end. */
2633 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2635 register char *p
= &argv
[i
][1];
2636 register int c
= *p
;
2641 if (p
[1] == 0 && i
+ 1 == argc
)
2642 fatal ("argument to `-b' is missing");
2644 spec_machine
= argv
[++i
];
2646 spec_machine
= p
+ 1;
2651 int *temp
= (int *) xmalloc (sizeof (int));
2653 if (p
[1] == 0 && i
+ 1 == argc
)
2654 fatal ("argument to `-B' is missing");
2659 add_prefix (&exec_prefixes
, value
, 1, 0, temp
);
2660 add_prefix (&startfile_prefixes
, value
, 1, 0, temp
);
2661 add_prefix (&include_prefixes
, concat (value
, "include"),
2664 /* As a kludge, if the arg is "[foo/]stageN/", just add
2665 "[foo/]include" to the include prefix. */
2667 int len
= strlen (value
);
2670 && (value
[len
- 8] == '/'
2671 || value
[len
- 8] == DIR_SEPARATOR
)))
2672 && strncmp (value
+ len
- 7, "stage", 5) == 0
2673 && isdigit (value
[len
- 2])
2674 && (value
[len
- 1] == '/'
2675 || value
[len
- 1] == DIR_SEPARATOR
))
2678 add_prefix (&include_prefixes
, "include", 1, 0, 0);
2681 char *string
= xmalloc (len
+ 1);
2682 strncpy (string
, value
, len
-7);
2683 strcat (string
, "include");
2684 add_prefix (&include_prefixes
, string
, 1, 0, 0);
2691 case 'v': /* Print our subcommands and print versions. */
2693 /* If they do anything other than exactly `-v', don't set
2694 verbose_flag; rather, continue on to give the error. */
2701 if (p
[1] == 0 && i
+ 1 == argc
)
2702 fatal ("argument to `-V' is missing");
2704 spec_version
= argv
[++i
];
2706 spec_version
= p
+ 1;
2707 compiler_version
= spec_version
;
2711 if (!strcmp (p
, "save-temps"))
2713 save_temps_flag
= 1;
2720 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2721 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2722 else if (WORD_SWITCH_TAKES_ARG (p
))
2723 i
+= WORD_SWITCH_TAKES_ARG (p
);
2730 /* Set up the search paths before we go looking for config files. */
2732 /* These come before the md prefixes so that we will find gcc's subcommands
2733 (such as cpp) rather than those of the host system. */
2734 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2735 as well as trying the machine and the version. */
2737 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, NULL_PTR
);
2738 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, NULL_PTR
);
2741 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, NULL_PTR
);
2742 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, NULL_PTR
);
2744 tooldir_prefix
= concat3 (tooldir_base_prefix
, spec_machine
,
2747 /* If tooldir is relative, base it on exec_prefixes. A relative
2748 tooldir lets us move the installed tree as a unit.
2750 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2751 directories, so that we can search both the user specified directory
2752 and the standard place. */
2754 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2756 if (gcc_exec_prefix
)
2758 char *gcc_exec_tooldir_prefix
2759 = concat6 (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2760 spec_version
, dir_separator_str
, tooldir_prefix
);
2762 add_prefix (&exec_prefixes
,
2763 concat3 (gcc_exec_tooldir_prefix
, "bin",
2766 add_prefix (&startfile_prefixes
,
2767 concat3 (gcc_exec_tooldir_prefix
, "lib",
2772 tooldir_prefix
= concat6 (standard_exec_prefix
, spec_machine
,
2773 dir_separator_str
, spec_version
,
2774 dir_separator_str
, tooldir_prefix
);
2777 add_prefix (&exec_prefixes
,
2778 concat3 (tooldir_prefix
, "bin", dir_separator_str
),
2780 add_prefix (&startfile_prefixes
,
2781 concat3 (tooldir_prefix
, "lib", dir_separator_str
),
2784 /* More prefixes are enabled in main, after we read the specs file
2785 and determine whether this is cross-compilation or not. */
2788 /* Then create the space for the vectors and scan again. */
2790 switches
= ((struct switchstr
*)
2791 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2792 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2795 last_language_n_infiles
= -1;
2797 /* This, time, copy the text of each switch and store a pointer
2798 to the copy in the vector of switches.
2799 Store all the infiles in their vector. */
2801 for (i
= 1; i
< argc
; i
++)
2803 /* Just skip the switches that were handled by the preceding loop. */
2804 if (!strcmp (argv
[i
], "-Xlinker"))
2806 else if (! strncmp (argv
[i
], "-Wl,", 4))
2808 else if (! strncmp (argv
[i
], "-Wa,", 4))
2810 else if (! strncmp (argv
[i
], "-Wp,", 4))
2812 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2814 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2816 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2818 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2820 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2822 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2824 /* Compensate for the +e options to the C++ front-end;
2825 they're there simply for cfront call-compatibility. We do
2826 some magic in default_compilers to pass them down properly.
2827 Note we deliberately start at the `+' here, to avoid passing
2828 -e0 or -e1 down into the linker. */
2829 switches
[n_switches
].part1
= &argv
[i
][0];
2830 switches
[n_switches
].args
= 0;
2831 switches
[n_switches
].live_cond
= 0;
2832 switches
[n_switches
].valid
= 0;
2835 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0 && argv
[i
][1] != 'l')
2837 register char *p
= &argv
[i
][1];
2838 register int c
= *p
;
2840 if (c
== 'B' || c
== 'b' || c
== 'V')
2842 /* Skip a separate arg, if any. */
2849 if (p
[1] == 0 && i
+ 1 == argc
)
2850 fatal ("argument to `-x' is missing");
2852 spec_lang
= argv
[++i
];
2855 if (! strcmp (spec_lang
, "none"))
2856 /* Suppress the warning if -xnone comes after the last input file,
2857 because alternate command interfaces like g++ might find it
2858 useful to place -xnone after each input file. */
2861 last_language_n_infiles
= n_infiles
;
2864 switches
[n_switches
].part1
= p
;
2865 /* Deal with option arguments in separate argv elements. */
2866 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2867 || WORD_SWITCH_TAKES_ARG (p
))
2870 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2874 /* Count only the option arguments in separate argv elements. */
2875 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2877 if (i
+ n_args
>= argc
)
2878 fatal ("argument to `-%s' is missing", p
);
2879 switches
[n_switches
].args
2880 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2882 switches
[n_switches
].args
[j
++] = argv
[++i
];
2883 /* Null-terminate the vector. */
2884 switches
[n_switches
].args
[j
] = 0;
2886 else if (*switches_need_spaces
!= 0 && (c
== 'o' || c
== 'L'))
2888 /* On some systems, ld cannot handle -o or -L without space.
2889 So split the -o or -L from its argument. */
2890 switches
[n_switches
].part1
= (c
== 'o' ? "o" : "L");
2891 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2892 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2893 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2894 switches
[n_switches
].args
[1] = 0;
2897 switches
[n_switches
].args
= 0;
2899 switches
[n_switches
].live_cond
= 0;
2900 switches
[n_switches
].valid
= 0;
2901 /* This is always valid, since gcc.c itself understands it. */
2902 if (!strcmp (p
, "save-temps"))
2903 switches
[n_switches
].valid
= 1;
2908 if ((argv
[i
][0] != '-' || argv
[i
][1] != 'l')
2909 && strcmp (argv
[i
], "-")
2910 && access (argv
[i
], R_OK
) < 0)
2912 perror_with_name (argv
[i
]);
2917 infiles
[n_infiles
].language
= spec_lang
;
2918 infiles
[n_infiles
++].name
= argv
[i
];
2923 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2924 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2926 switches
[n_switches
].part1
= 0;
2927 infiles
[n_infiles
].name
= 0;
2929 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
2930 if (gcc_exec_prefix
)
2932 temp
= (char *) xmalloc (strlen (gcc_exec_prefix
) + strlen (spec_version
)
2933 + strlen (spec_machine
) + 3);
2934 strcpy (temp
, gcc_exec_prefix
);
2935 strcat (temp
, spec_machine
);
2936 strcat (temp
, dir_separator_str
);
2937 strcat (temp
, spec_version
);
2938 strcat (temp
, dir_separator_str
);
2939 gcc_exec_prefix
= temp
;
2943 /* Process a spec string, accumulating and running commands. */
2945 /* These variables describe the input file name.
2946 input_file_number is the index on outfiles of this file,
2947 so that the output file name can be stored for later use by %o.
2948 input_basename is the start of the part of the input file
2949 sans all directory names, and basename_length is the number
2950 of characters starting there excluding the suffix .c or whatever. */
2952 static char *input_filename
;
2953 static int input_file_number
;
2954 static int input_filename_length
;
2955 static int basename_length
;
2956 static char *input_basename
;
2957 static char *input_suffix
;
2959 /* These are variables used within do_spec and do_spec_1. */
2961 /* Nonzero if an arg has been started and not yet terminated
2962 (with space, tab or newline). */
2963 static int arg_going
;
2965 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2966 is a temporary file name. */
2967 static int delete_this_arg
;
2969 /* Nonzero means %w has been seen; the next arg to be terminated
2970 is the output file name of this compilation. */
2971 static int this_is_output_file
;
2973 /* Nonzero means %s has been seen; the next arg to be terminated
2974 is the name of a library file and we should try the standard
2975 search dirs for it. */
2976 static int this_is_library_file
;
2978 /* Nonzero means that the input of this command is coming from a pipe. */
2979 static int input_from_pipe
;
2981 /* Process the spec SPEC and run the commands specified therein.
2982 Returns 0 if the spec is successfully processed; -1 if failed. */
2992 delete_this_arg
= 0;
2993 this_is_output_file
= 0;
2994 this_is_library_file
= 0;
2995 input_from_pipe
= 0;
2997 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2999 /* Force out any unfinished command.
3000 If -pipe, this forces out the last command if it ended in `|'. */
3003 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3006 if (argbuf_index
> 0)
3013 /* Process the sub-spec SPEC as a portion of a larger spec.
3014 This is like processing a whole spec except that we do
3015 not initialize at the beginning and we do not supply a
3016 newline by default at the end.
3017 INSWITCH nonzero means don't process %-sequences in SPEC;
3018 in this case, % is treated as an ordinary character.
3019 This is used while substituting switches.
3020 INSWITCH nonzero also causes SPC not to terminate an argument.
3022 Value is zero unless a line was finished
3023 and the command on that line reported an error. */
3026 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3029 char *soft_matched_part
;
3031 register char *p
= spec
;
3038 /* If substituting a switch, treat all chars like letters.
3039 Otherwise, NL, SPC, TAB and % are special. */
3040 switch (inswitch
? 'a' : c
)
3043 /* End of line: finish any pending argument,
3044 then run the pending command if one has been started. */
3047 obstack_1grow (&obstack
, 0);
3048 string
= obstack_finish (&obstack
);
3049 if (this_is_library_file
)
3050 string
= find_file (string
);
3051 store_arg (string
, delete_this_arg
, this_is_output_file
);
3052 if (this_is_output_file
)
3053 outfiles
[input_file_number
] = string
;
3057 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3060 for (i
= 0; i
< n_switches
; i
++)
3061 if (!strcmp (switches
[i
].part1
, "pipe"))
3064 /* A `|' before the newline means use a pipe here,
3065 but only if -pipe was specified.
3066 Otherwise, execute now and don't pass the `|' as an arg. */
3069 input_from_pipe
= 1;
3070 switches
[i
].valid
= 1;
3077 if (argbuf_index
> 0)
3083 /* Reinitialize for a new command, and for a new argument. */
3086 delete_this_arg
= 0;
3087 this_is_output_file
= 0;
3088 this_is_library_file
= 0;
3089 input_from_pipe
= 0;
3093 /* End any pending argument. */
3096 obstack_1grow (&obstack
, 0);
3097 string
= obstack_finish (&obstack
);
3098 if (this_is_library_file
)
3099 string
= find_file (string
);
3100 store_arg (string
, delete_this_arg
, this_is_output_file
);
3101 if (this_is_output_file
)
3102 outfiles
[input_file_number
] = string
;
3106 obstack_1grow (&obstack
, c
);
3112 /* Space or tab ends an argument if one is pending. */
3115 obstack_1grow (&obstack
, 0);
3116 string
= obstack_finish (&obstack
);
3117 if (this_is_library_file
)
3118 string
= find_file (string
);
3119 store_arg (string
, delete_this_arg
, this_is_output_file
);
3120 if (this_is_output_file
)
3121 outfiles
[input_file_number
] = string
;
3123 /* Reinitialize for a new argument. */
3125 delete_this_arg
= 0;
3126 this_is_output_file
= 0;
3127 this_is_library_file
= 0;
3134 fatal ("Invalid specification! Bug in cc.");
3137 obstack_grow (&obstack
, input_basename
, basename_length
);
3142 delete_this_arg
= 2;
3145 /* Dump out the directories specified with LIBRARY_PATH,
3146 followed by the absolute directories
3147 that we search for startfiles. */
3150 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3152 char *buffer
= (char *) xmalloc (bufsize
);
3155 for (; pl
; pl
= pl
->next
)
3157 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3158 /* Used on systems which record the specified -L dirs
3159 and use them to search for dynamic linking. */
3160 /* Relative directories always come from -B,
3161 and it is better not to use them for searching
3162 at run time. In particular, stage1 loses */
3163 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3166 /* Try subdirectory if there is one. */
3167 if (multilib_dir
!= NULL
)
3171 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3173 bufsize
= (strlen (pl
->prefix
)
3174 + strlen (machine_suffix
)) * 2 + 1;
3175 buffer
= (char *) xrealloc (buffer
, bufsize
);
3176 strcpy (buffer
, pl
->prefix
);
3177 strcat (buffer
, machine_suffix
);
3178 if (is_directory (buffer
, multilib_dir
, 1))
3180 do_spec_1 ("-L", 0, NULL_PTR
);
3181 #ifdef SPACE_AFTER_L_OPTION
3182 do_spec_1 (" ", 0, NULL_PTR
);
3184 do_spec_1 (buffer
, 1, NULL_PTR
);
3185 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3186 /* Make this a separate argument. */
3187 do_spec_1 (" ", 0, NULL_PTR
);
3190 if (!pl
->require_machine_suffix
)
3192 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3194 do_spec_1 ("-L", 0, NULL_PTR
);
3195 #ifdef SPACE_AFTER_L_OPTION
3196 do_spec_1 (" ", 0, NULL_PTR
);
3198 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3199 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3200 /* Make this a separate argument. */
3201 do_spec_1 (" ", 0, NULL_PTR
);
3207 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3209 do_spec_1 ("-L", 0, NULL_PTR
);
3210 #ifdef SPACE_AFTER_L_OPTION
3211 do_spec_1 (" ", 0, NULL_PTR
);
3213 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3214 /* Remove slash from machine_suffix. */
3215 if (strlen (machine_suffix
) >= bufsize
)
3216 bufsize
= strlen (machine_suffix
) * 2 + 1;
3217 buffer
= (char *) xrealloc (buffer
, bufsize
);
3218 strcpy (buffer
, machine_suffix
);
3219 idx
= strlen (buffer
);
3220 if (buffer
[idx
- 1] == '/'
3221 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3222 buffer
[idx
- 1] = 0;
3223 do_spec_1 (buffer
, 1, NULL_PTR
);
3224 /* Make this a separate argument. */
3225 do_spec_1 (" ", 0, NULL_PTR
);
3228 if (!pl
->require_machine_suffix
)
3230 if (is_directory (pl
->prefix
, "", 1))
3232 do_spec_1 ("-L", 0, NULL_PTR
);
3233 #ifdef SPACE_AFTER_L_OPTION
3234 do_spec_1 (" ", 0, NULL_PTR
);
3236 /* Remove slash from pl->prefix. */
3237 if (strlen (pl
->prefix
) >= bufsize
)
3238 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3239 buffer
= (char *) xrealloc (buffer
, bufsize
);
3240 strcpy (buffer
, pl
->prefix
);
3241 idx
= strlen (buffer
);
3242 if (buffer
[idx
- 1] == '/'
3243 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3244 buffer
[idx
- 1] = 0;
3245 do_spec_1 (buffer
, 1, NULL_PTR
);
3246 /* Make this a separate argument. */
3247 do_spec_1 (" ", 0, NULL_PTR
);
3256 /* {...:%efoo} means report an error with `foo' as error message
3257 and don't execute any more commands for this file. */
3261 while (*p
!= 0 && *p
!= '\n') p
++;
3262 buf
= (char *) alloca (p
- q
+ 1);
3263 strncpy (buf
, q
, p
- q
);
3273 if (save_temps_flag
)
3275 obstack_grow (&obstack
, input_basename
, basename_length
);
3276 delete_this_arg
= 0;
3280 #ifdef MKTEMP_EACH_FILE
3281 /* ??? This has a problem: the total number of
3282 values mktemp can return is limited.
3283 That matters for the names of object files.
3284 In 2.4, do something about that. */
3285 struct temp_name
*t
;
3287 while (*p
== '.' || isalpha (*p
))
3290 /* See if we already have an association of %g/%u/%U and
3292 for (t
= temp_names
; t
; t
= t
->next
)
3293 if (t
->length
== p
- suffix
3294 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3295 && t
->unique
== (c
!= 'g'))
3298 /* Make a new association if needed. %u requires one. */
3299 if (t
== 0 || c
== 'u')
3303 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3304 t
->next
= temp_names
;
3307 t
->length
= p
- suffix
;
3308 t
->suffix
= save_string (suffix
, p
- suffix
);
3309 t
->unique
= (c
!= 'g');
3310 choose_temp_base ();
3311 t
->filename
= temp_filename
;
3312 t
->filename_length
= temp_filename_length
;
3315 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3316 delete_this_arg
= 1;
3318 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3319 if (c
== 'u' || c
== 'U')
3325 sprintf (buff
, "%d", unique
);
3326 obstack_grow (&obstack
, buff
, strlen (buff
));
3329 delete_this_arg
= 1;
3335 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3341 struct prefix_list
*pl
= include_prefixes
.plist
;
3343 if (gcc_exec_prefix
)
3345 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3346 /* Make this a separate argument. */
3347 do_spec_1 (" ", 0, NULL_PTR
);
3348 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3349 do_spec_1 (" ", 0, NULL_PTR
);
3352 for (; pl
; pl
= pl
->next
)
3354 do_spec_1 ("-isystem", 1, NULL_PTR
);
3355 /* Make this a separate argument. */
3356 do_spec_1 (" ", 0, NULL_PTR
);
3357 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3358 do_spec_1 (" ", 0, NULL_PTR
);
3366 for (f
= 0; f
< n_infiles
; f
++)
3367 store_arg (outfiles
[f
], 0, 0);
3372 this_is_library_file
= 1;
3376 this_is_output_file
= 1;
3381 int index
= argbuf_index
;
3382 /* Handle the {...} following the %W. */
3385 p
= handle_braces (p
+ 1);
3388 /* If any args were output, mark the last one for deletion
3390 if (argbuf_index
!= index
)
3391 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3395 /* %x{OPTION} records OPTION for %X to output. */
3401 /* Skip past the option value and make a copy. */
3406 string
= save_string (p1
+ 1, p
- p1
- 2);
3408 /* See if we already recorded this option. */
3409 for (i
= 0; i
< n_linker_options
; i
++)
3410 if (! strcmp (string
, linker_options
[i
]))
3416 /* This option is new; add it. */
3418 if (!linker_options
)
3420 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3423 = (char **) xrealloc (linker_options
,
3424 n_linker_options
* sizeof (char **));
3426 linker_options
[n_linker_options
- 1] = string
;
3430 /* Dump out the options accumulated previously using %x,
3431 -Xlinker and -Wl,. */
3433 for (i
= 0; i
< n_linker_options
; i
++)
3435 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3436 /* Make each accumulated option a separate argument. */
3437 do_spec_1 (" ", 0, NULL_PTR
);
3441 /* Dump out the options accumulated previously using -Wa,. */
3443 for (i
= 0; i
< n_assembler_options
; i
++)
3445 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3446 /* Make each accumulated option a separate argument. */
3447 do_spec_1 (" ", 0, NULL_PTR
);
3451 /* Dump out the options accumulated previously using -Wp,. */
3453 for (i
= 0; i
< n_preprocessor_options
; i
++)
3455 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3456 /* Make each accumulated option a separate argument. */
3457 do_spec_1 (" ", 0, NULL_PTR
);
3461 /* Here are digits and numbers that just process
3462 a certain constant string as a spec. */
3465 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3471 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3477 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3483 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3489 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3495 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3501 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3507 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3513 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3520 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3524 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3528 if (! strncmp (y
, "-D", 2))
3529 /* Copy the whole option. */
3530 while (*y
&& *y
!= ' ' && *y
!= '\t')
3532 else if (*y
== ' ' || *y
== '\t')
3533 /* Copy whitespace to the result. */
3535 /* Don't copy other options. */
3542 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3550 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3554 /* Copy all of CPP_PREDEFINES into BUF,
3555 but put __ after every -D and at the end of each arg. */
3559 if (! strncmp (y
, "-D", 2))
3567 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3569 /* Stick __ at front of macro name. */
3572 /* Arrange to stick __ at the end as well. */
3576 /* Copy the macro name. */
3577 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3586 /* Copy the value given, if any. */
3587 while (*y
&& *y
!= ' ' && *y
!= '\t')
3590 else if (*y
== ' ' || *y
== '\t')
3591 /* Copy whitespace to the result. */
3593 /* Don't copy -A options */
3599 /* Copy all of CPP_PREDEFINES into BUF,
3600 but put __ after every -D. */
3604 if (! strncmp (y
, "-D", 2))
3609 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3611 /* Stick -D__ at front of macro name. */
3617 /* Copy the macro name. */
3618 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3621 /* Copy the value given, if any. */
3622 while (*y
&& *y
!= ' ' && *y
!= '\t')
3627 /* Do not copy this macro - we have just done it before */
3628 while (*y
&& *y
!= ' ' && *y
!= '\t')
3632 else if (*y
== ' ' || *y
== '\t')
3633 /* Copy whitespace to the result. */
3635 /* Don't copy -A options */
3641 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3645 if (! strncmp (y
, "-A", 2))
3646 /* Copy the whole option. */
3647 while (*y
&& *y
!= ' ' && *y
!= '\t')
3649 else if (*y
== ' ' || *y
== '\t')
3650 /* Copy whitespace to the result. */
3652 /* Don't copy other options. */
3659 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3666 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3671 /* Here we define characters other than letters and digits. */
3674 p
= handle_braces (p
);
3680 obstack_1grow (&obstack
, '%');
3684 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3685 do_spec_1 (" ", 0, NULL_PTR
);
3688 /* Process a string found as the value of a spec given by name.
3689 This feature allows individual machine descriptions
3690 to add and use their own specs.
3691 %[...] modifies -D options the way %P does;
3692 %(...) uses the spec unmodified. */
3697 struct spec_list
*sl
;
3700 /* The string after the S/P is the name of a spec that is to be
3702 while (*p
&& *p
!= ')' && *p
!= ']')
3705 /* See if it's in the list */
3706 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3707 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3717 value
= do_spec_1 (name
, 0, NULL_PTR
);
3723 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3727 /* Copy all of NAME into BUF, but put __ after
3728 every -D and at the end of each arg, */
3731 if (! strncmp (y
, "-D", 2))
3739 else if (*y
== ' ' || *y
== 0)
3753 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3759 /* Discard the closing paren or bracket. */
3767 int c1
= *p
++; /* Select first or second version number. */
3768 char *v
= compiler_version
;
3770 /* If desired, advance to second version number. */
3773 /* Set P after the first period. */
3774 while (*v
!= 0 && *v
!= ' ' && *v
!= '.')
3779 /* Set Q at the next period or at the end. */
3781 while (*q
!= 0 && *q
!= ' ' && *q
!= '.')
3783 /* Empty string means zero. */
3789 /* Put that part into the command. */
3790 obstack_grow (&obstack
, v
, q
- v
);
3796 if (input_from_pipe
)
3797 do_spec_1 ("-", 0, NULL_PTR
);
3806 /* Backslash: treat next character as ordinary. */
3811 /* Ordinary character: put it into the current argument. */
3812 obstack_1grow (&obstack
, c
);
3816 return 0; /* End of string */
3819 /* Return 0 if we call do_spec_1 and that returns -1. */
3832 /* A `|' after the open-brace means,
3833 if the test fails, output a single minus sign rather than nothing.
3834 This is used in %{|!pipe:...}. */
3838 /* A `!' after the open-brace negates the condition:
3839 succeed if the specified switch is not present. */
3843 /* A `.' after the open-brace means test against the current suffix. */
3853 while (*p
!= ':' && *p
!= '}') p
++;
3856 register int count
= 1;
3874 int found
= (input_suffix
!= 0
3875 && strlen (input_suffix
) == p
- filter
3876 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3882 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3887 else if (p
[-1] == '*' && p
[0] == '}')
3889 /* Substitute all matching switches as separate args. */
3892 for (i
= 0; i
< n_switches
; i
++)
3893 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3894 && check_live_switch (i
, p
- filter
))
3899 /* Test for presence of the specified switch. */
3903 /* If name specified ends in *, as in {x*:...},
3904 check for %* and handle that case. */
3905 if (p
[-1] == '*' && !negate
)
3910 /* First see whether we have %*. */
3914 if (*r
== '%' && r
[1] == '*')
3918 /* If we do, handle that case. */
3921 /* Substitute all matching switches as separate args.
3922 But do this by substituting for %*
3923 in the text that follows the colon. */
3925 unsigned hard_match_len
= p
- filter
- 1;
3926 char *string
= save_string (p
+ 1, q
- p
- 2);
3928 for (i
= 0; i
< n_switches
; i
++)
3929 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3930 && check_live_switch (i
, -1))
3932 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3933 /* Pass any arguments this switch has. */
3941 /* If name specified ends in *, as in {x*:...},
3942 check for presence of any switch name starting with x. */
3945 for (i
= 0; i
< n_switches
; i
++)
3947 unsigned hard_match_len
= p
- filter
- 1;
3949 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3950 && check_live_switch (i
, hard_match_len
))
3956 /* Otherwise, check for presence of exact name specified. */
3959 for (i
= 0; i
< n_switches
; i
++)
3961 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3962 && switches
[i
].part1
[p
- filter
] == 0
3963 && check_live_switch (i
, -1))
3971 /* If it is as desired (present for %{s...}, absent for %{-s...})
3972 then substitute either the switch or the specified
3973 conditional text. */
3974 if (present
!= negate
)
3982 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3988 /* Here if a %{|...} conditional fails: output a minus sign,
3989 which means "standard output" or "standard input". */
3990 do_spec_1 ("-", 0, NULL_PTR
);
3997 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3998 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3999 spec, or -1 if either exact match or %* is used.
4001 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4002 whose value does not begin with "no-" is obsoleted by the same value
4003 with the "no-", similarly for a switch with the "no-" prefix. */
4006 check_live_switch (switchnum
, prefix_length
)
4010 char *name
= switches
[switchnum
].part1
;
4013 /* In the common case of {<at-most-one-letter>*}, a negating
4014 switch would always match, so ignore that case. We will just
4015 send the conflicting switches to the compiler phase. */
4016 if (prefix_length
>= 0 && prefix_length
<= 1)
4019 /* If we already processed this switch and determined if it was
4020 live or not, return our past determination. */
4021 if (switches
[switchnum
].live_cond
!= 0)
4022 return switches
[switchnum
].live_cond
> 0;
4024 /* Now search for duplicate in a manner that depends on the name. */
4028 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4029 if (switches
[i
].part1
[0] == 'O')
4031 switches
[switchnum
].valid
= 1;
4032 switches
[switchnum
].live_cond
= -1;
4037 case 'W': case 'f': case 'm':
4038 if (! strncmp (name
+ 1, "no-", 3))
4040 /* We have Xno-YYY, search for XYYY. */
4041 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4042 if (switches
[i
].part1
[0] == name
[0]
4043 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4045 switches
[switchnum
].valid
= 1;
4046 switches
[switchnum
].live_cond
= -1;
4052 /* We have XYYY, search for Xno-YYY. */
4053 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4054 if (switches
[i
].part1
[0] == name
[0]
4055 && switches
[i
].part1
[1] == 'n'
4056 && switches
[i
].part1
[2] == 'o'
4057 && switches
[i
].part1
[3] == '-'
4058 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4060 switches
[switchnum
].valid
= 1;
4061 switches
[switchnum
].live_cond
= -1;
4068 /* Otherwise the switch is live. */
4069 switches
[switchnum
].live_cond
= 1;
4073 /* Pass a switch to the current accumulating command
4074 in the same form that we received it.
4075 SWITCHNUM identifies the switch; it is an index into
4076 the vector of switches gcc received, which is `switches'.
4077 This cannot fail since it never finishes a command line.
4079 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
4082 give_switch (switchnum
, omit_first_word
)
4084 int omit_first_word
;
4086 if (!omit_first_word
)
4088 do_spec_1 ("-", 0, NULL_PTR
);
4089 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4091 do_spec_1 (" ", 0, NULL_PTR
);
4092 if (switches
[switchnum
].args
!= 0)
4095 for (p
= switches
[switchnum
].args
; *p
; p
++)
4097 do_spec_1 (*p
, 1, NULL_PTR
);
4098 do_spec_1 (" ", 0, NULL_PTR
);
4101 switches
[switchnum
].valid
= 1;
4104 /* Search for a file named NAME trying various prefixes including the
4105 user's -B prefix and some standard ones.
4106 Return the absolute file name found. If nothing is found, return NAME. */
4114 /* Try multilib_dir if it is defined. */
4115 if (multilib_dir
!= NULL
)
4119 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4120 strcpy (try, multilib_dir
);
4121 strcat (try, dir_separator_str
);
4124 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4126 /* If we don't find it in the multi library dir, then fall
4127 through and look for it in the normal places. */
4128 if (newname
!= NULL
)
4132 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4133 return newname
? newname
: name
;
4136 /* Determine whether a directory exists. If LINKER, return 0 for
4137 certain fixed names not needed by the linker. If not LINKER, it is
4138 only important to return 0 if the host machine has a small ARG_MAX
4142 is_directory (path1
, path2
, linker
)
4147 int len1
= strlen (path1
);
4148 int len2
= strlen (path2
);
4149 char *path
= (char *) alloca (3 + len1
+ len2
);
4153 #ifndef SMALL_ARG_MAX
4158 /* Construct the path from the two parts. Ensure the string ends with "/.".
4159 The resulting path will be a directory even if the given path is a
4161 bcopy (path1
, path
, len1
);
4162 bcopy (path2
, path
+ len1
, len2
);
4163 cp
= path
+ len1
+ len2
;
4164 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4165 *cp
++ = DIR_SEPARATOR
;
4169 /* Exclude directories that the linker is known to search. */
4172 && strcmp (path
, concat4 (dir_separator_str
, "lib",
4173 dir_separator_str
, ".")) == 0)
4175 && strcmp (path
, concat6 (dir_separator_str
, "usr",
4176 dir_separator_str
, "lib",
4177 dir_separator_str
, ".")) == 0)))
4180 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4183 /* On fatal signals, delete all the temporary files. */
4186 fatal_error (signum
)
4189 signal (signum
, SIG_DFL
);
4190 delete_failure_queue ();
4191 delete_temp_files ();
4192 /* Get the same signal again, this time not handled,
4193 so its normal effect occurs. */
4194 kill (getpid (), signum
);
4205 int linker_was_run
= 0;
4206 char *explicit_link_files
;
4210 p
= argv
[0] + strlen (argv
[0]);
4211 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4214 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4215 signal (SIGINT
, fatal_error
);
4217 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4218 signal (SIGHUP
, fatal_error
);
4220 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4221 signal (SIGTERM
, fatal_error
);
4223 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4224 signal (SIGPIPE
, fatal_error
);
4228 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4230 obstack_init (&obstack
);
4232 /* Set up to remember the pathname of gcc and any options
4233 needed for collect. We use argv[0] instead of programname because
4234 we need the complete pathname. */
4235 obstack_init (&collect_obstack
);
4236 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4237 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4238 putenv (obstack_finish (&collect_obstack
));
4240 /* Choose directory for temp files. */
4242 choose_temp_base ();
4244 /* Make a table of what switches there are (switches, n_switches).
4245 Make a table of specified input files (infiles, n_infiles).
4246 Decode switches that are handled locally. */
4248 process_command (argc
, argv
);
4250 /* Initialize the vector of specs to just the default.
4251 This means one element containing 0s, as a terminator. */
4253 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4254 bcopy ((char *) default_compilers
, (char *) compilers
,
4255 sizeof default_compilers
);
4256 n_compilers
= n_default_compilers
;
4258 /* Read specs from a file if there is one. */
4260 machine_suffix
= concat4 (spec_machine
, dir_separator_str
,
4261 spec_version
, dir_separator_str
);
4262 just_machine_suffix
= concat (spec_machine
, dir_separator_str
);
4264 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4265 /* Read the specs file unless it is a default one. */
4266 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4267 read_specs (specs_file
);
4269 /* If not cross-compiling, look for startfiles in the standard places. */
4270 /* The fact that these are done here, after reading the specs file,
4271 means that it cannot be found in these directories.
4272 But that's okay. It should never be there anyway. */
4275 #ifdef MD_EXEC_PREFIX
4276 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4277 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4280 #ifdef MD_STARTFILE_PREFIX
4281 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4284 #ifdef MD_STARTFILE_PREFIX_1
4285 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4288 /* If standard_startfile_prefix is relative, base it on
4289 standard_exec_prefix. This lets us move the installed tree
4290 as a unit. If GCC_EXEC_PREFIX is defined, base
4291 standard_startfile_prefix on that as well. */
4292 if (*standard_startfile_prefix
== '/'
4293 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4294 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4298 if (gcc_exec_prefix
)
4299 add_prefix (&startfile_prefixes
,
4300 concat (gcc_exec_prefix
, standard_startfile_prefix
),
4302 add_prefix (&startfile_prefixes
,
4303 concat3 (standard_exec_prefix
,
4305 standard_startfile_prefix
),
4309 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4311 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4313 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4314 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4318 /* Now we have the specs.
4319 Set the `valid' bits for switches that match anything in any spec. */
4321 validate_all_switches ();
4323 /* Now that we have the switches and the specs, set
4324 the subdirectory based on the options. */
4325 set_multilib_dir ();
4327 /* Warn about any switches that no pass was interested in. */
4329 for (i
= 0; i
< n_switches
; i
++)
4330 if (! switches
[i
].valid
)
4331 error ("unrecognized option `-%s'", switches
[i
].part1
);
4333 /* Obey some of the options. */
4335 if (print_file_name
)
4337 printf ("%s\n", find_file (print_file_name
));
4341 if (print_prog_name
)
4343 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4344 printf ("%s\n", (newname
? newname
: print_prog_name
));
4348 if (print_multi_lib
)
4350 print_multilib_info ();
4354 if (print_multi_directory
)
4356 if (multilib_dir
== NULL
)
4359 printf ("%s\n", multilib_dir
);
4365 fprintf (stderr
, "gcc version %s\n", version_string
);
4371 fatal ("No input files");
4373 /* Make a place to record the compiler output file names
4374 that correspond to the input files. */
4376 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4377 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4379 /* Record which files were specified explicitly as link input. */
4381 explicit_link_files
= xmalloc (n_infiles
);
4382 bzero (explicit_link_files
, n_infiles
);
4384 for (i
= 0; i
< n_infiles
; i
++)
4386 register struct compiler
*cp
= 0;
4387 int this_file_error
= 0;
4389 /* Tell do_spec what to substitute for %i. */
4391 input_filename
= infiles
[i
].name
;
4392 input_filename_length
= strlen (input_filename
);
4393 input_file_number
= i
;
4395 /* Use the same thing in %o, unless cp->spec says otherwise. */
4397 outfiles
[i
] = input_filename
;
4399 /* Figure out which compiler from the file's suffix. */
4401 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4402 infiles
[i
].language
);
4406 /* Ok, we found an applicable compiler. Run its spec. */
4407 /* First say how much of input_filename to substitute for %b */
4411 input_basename
= input_filename
;
4412 for (p
= input_filename
; *p
; p
++)
4413 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4414 input_basename
= p
+ 1;
4416 /* Find a suffix starting with the last period,
4417 and set basename_length to exclude that suffix. */
4418 basename_length
= strlen (input_basename
);
4419 p
= input_basename
+ basename_length
;
4420 while (p
!= input_basename
&& *p
!= '.') --p
;
4421 if (*p
== '.' && p
!= input_basename
)
4423 basename_length
= p
- input_basename
;
4424 input_suffix
= p
+ 1;
4430 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4432 len
+= strlen (cp
->spec
[j
]);
4434 p
= (char *) xmalloc (len
+ 1);
4437 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4440 strcpy (p
+ len
, cp
->spec
[j
]);
4441 len
+= strlen (cp
->spec
[j
]);
4444 value
= do_spec (p
);
4447 this_file_error
= 1;
4450 /* If this file's name does not contain a recognized suffix,
4451 record it as explicit linker input. */
4454 explicit_link_files
[i
] = 1;
4456 /* Clear the delete-on-failure queue, deleting the files in it
4457 if this compilation failed. */
4459 if (this_file_error
)
4461 delete_failure_queue ();
4464 /* If this compilation succeeded, don't delete those files later. */
4465 clear_failure_queue ();
4468 /* Run ld to link all the compiler output files. */
4470 if (error_count
== 0)
4472 int tmp
= execution_count
;
4476 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4478 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4479 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4481 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4483 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4484 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4487 for (i
= 0; i
< n_switches
; i
++)
4491 obstack_grow (&collect_obstack
, " ", 1);
4494 obstack_grow (&collect_obstack
, "-", 1);
4495 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4496 strlen (switches
[i
].part1
));
4498 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4500 obstack_grow (&collect_obstack
, " ", 1);
4501 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4504 obstack_grow (&collect_obstack
, "\0", 1);
4505 putenv (obstack_finish (&collect_obstack
));
4507 value
= do_spec (link_command_spec
);
4510 linker_was_run
= (tmp
!= execution_count
);
4513 /* Warn if a -B option was specified but the prefix was never used. */
4514 unused_prefix_warnings (&exec_prefixes
);
4515 unused_prefix_warnings (&startfile_prefixes
);
4517 /* If options said don't run linker,
4518 complain about input files to be given to the linker. */
4520 if (! linker_was_run
&& error_count
== 0)
4521 for (i
= 0; i
< n_infiles
; i
++)
4522 if (explicit_link_files
[i
])
4523 error ("%s: linker input file unused since linking not done",
4526 /* Delete some or all of the temporary files we made. */
4529 delete_failure_queue ();
4530 delete_temp_files ();
4532 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4537 /* Find the proper compilation spec for the file name NAME,
4538 whose length is LENGTH. LANGUAGE is the specified language,
4539 or 0 if none specified. */
4541 static struct compiler
*
4542 lookup_compiler (name
, length
, language
)
4547 struct compiler
*cp
;
4549 /* Look for the language, if one is spec'd. */
4552 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4556 if (cp
->suffix
[0] == '@'
4557 && !strcmp (cp
->suffix
+ 1, language
))
4561 error ("language %s not recognized", language
);
4564 /* Look for a suffix. */
4565 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4567 if (/* The suffix `-' matches only the file name `-'. */
4568 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4570 (strlen (cp
->suffix
) < length
4571 /* See if the suffix matches the end of NAME. */
4573 && (!strcmp (cp
->suffix
,
4574 name
+ length
- strlen (cp
->suffix
))
4575 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4576 && !strcasecmp (cp
->suffix
,
4577 name
+ length
- strlen (cp
->suffix
)))))
4579 && !strcmp (cp
->suffix
,
4580 name
+ length
- strlen (cp
->suffix
))))
4583 if (cp
->spec
[0][0] == '@')
4585 struct compiler
*new;
4586 /* An alias entry maps a suffix to a language.
4587 Search for the language; pass 0 for NAME and LENGTH
4588 to avoid infinite recursion if language not found.
4589 Construct the new compiler spec. */
4590 language
= cp
->spec
[0] + 1;
4591 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4592 new->suffix
= cp
->suffix
;
4593 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4594 (char *) new->spec
, sizeof new->spec
);
4597 /* A non-alias entry: return it. */
4609 register char *value
= (char *) malloc (size
);
4611 fatal ("virtual memory exhausted");
4616 xrealloc (ptr
, size
)
4620 register char *value
= (char *) realloc (ptr
, size
);
4622 fatal ("virtual memory exhausted");
4626 /* Return a newly-allocated string whose contents concatenate those of s1, s2 */
4632 int len1
= strlen (s1
);
4633 int len2
= strlen (s2
);
4634 char *result
= xmalloc (len1
+ len2
+ 1);
4636 strcpy (result
, s1
);
4637 strcpy (result
+ len1
, s2
);
4638 *(result
+ len1
+ len2
) = 0;
4644 concat3 (s1
, s2
, s3
)
4647 return concat (concat (s1
, s2
), s3
);
4651 concat4 (s1
, s2
, s3
, s4
)
4652 char *s1
, *s2
, *s3
, *s4
;
4654 return concat (concat (s1
, s2
), concat (s3
, s4
));
4658 concat6 (s1
, s2
, s3
, s4
, s5
, s6
)
4659 char *s1
, *s2
, *s3
, *s4
, *s5
, *s6
;
4661 return concat3 (concat (s1
, s2
), concat (s3
, s4
), concat (s5
, s6
));
4665 save_string (s
, len
)
4669 register char *result
= xmalloc (len
+ 1);
4671 bcopy (s
, result
, len
);
4677 pfatal_with_name (name
)
4682 if (errno
< sys_nerr
)
4683 s
= concat ("%s: ", sys_errlist
[errno
]);
4685 s
= "cannot open %s";
4690 perror_with_name (name
)
4695 if (errno
< sys_nerr
)
4696 s
= concat ("%s: ", sys_errlist
[errno
]);
4698 s
= "cannot open %s";
4708 if (errno
< sys_nerr
)
4709 s
= concat ("installation problem, cannot exec %s: ", sys_errlist
[errno
]);
4711 s
= "installation problem, cannot exec %s";
4715 /* More 'friendly' abort that prints the line and file.
4716 config.h can #define abort fancy_abort if you like that sort of thing. */
4721 fatal ("Internal gcc abort.");
4726 /* Output an error message and exit */
4729 fatal
VPROTO((char *format
, ...))
4736 VA_START (ap
, format
);
4739 format
= va_arg (ap
, char*);
4742 fprintf (stderr
, "%s: ", programname
);
4743 vfprintf (stderr
, format
, ap
);
4745 fprintf (stderr
, "\n");
4746 delete_temp_files ();
4751 error
VPROTO((char *format
, ...))
4758 VA_START (ap
, format
);
4761 format
= va_arg (ap
, char*);
4764 fprintf (stderr
, "%s: ", programname
);
4765 vfprintf (stderr
, format
, ap
);
4768 fprintf (stderr
, "\n");
4771 #else /* not HAVE_VPRINTF */
4774 fatal (msg
, arg1
, arg2
)
4775 char *msg
, *arg1
, *arg2
;
4777 error (msg
, arg1
, arg2
);
4778 delete_temp_files ();
4783 error (msg
, arg1
, arg2
)
4784 char *msg
, *arg1
, *arg2
;
4786 fprintf (stderr
, "%s: ", programname
);
4787 fprintf (stderr
, msg
, arg1
, arg2
);
4788 fprintf (stderr
, "\n");
4791 #endif /* not HAVE_VPRINTF */
4795 validate_all_switches ()
4797 struct compiler
*comp
;
4800 struct spec_list
*spec
;
4802 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4805 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4809 if (c
== '%' && *p
== '{')
4810 /* We have a switch spec. */
4811 validate_switches (p
+ 1);
4815 /* look through the linked list of extra specs read from the specs file */
4816 for (spec
= specs
; spec
; spec
= spec
->next
)
4820 if (c
== '%' && *p
== '{')
4821 /* We have a switch spec. */
4822 validate_switches (p
+ 1);
4825 p
= link_command_spec
;
4827 if (c
== '%' && *p
== '{')
4828 /* We have a switch spec. */
4829 validate_switches (p
+ 1);
4831 /* Now notice switches mentioned in the machine-specific specs. */
4835 if (c
== '%' && *p
== '{')
4836 /* We have a switch spec. */
4837 validate_switches (p
+ 1);
4841 if (c
== '%' && *p
== '{')
4842 /* We have a switch spec. */
4843 validate_switches (p
+ 1);
4847 if (c
== '%' && *p
== '{')
4848 /* We have a switch spec. */
4849 validate_switches (p
+ 1);
4851 p
= signed_char_spec
;
4853 if (c
== '%' && *p
== '{')
4854 /* We have a switch spec. */
4855 validate_switches (p
+ 1);
4859 if (c
== '%' && *p
== '{')
4860 /* We have a switch spec. */
4861 validate_switches (p
+ 1);
4865 if (c
== '%' && *p
== '{')
4866 /* We have a switch spec. */
4867 validate_switches (p
+ 1);
4871 if (c
== '%' && *p
== '{')
4872 /* We have a switch spec. */
4873 validate_switches (p
+ 1);
4877 if (c
== '%' && *p
== '{')
4878 /* We have a switch spec. */
4879 validate_switches (p
+ 1);
4883 if (c
== '%' && *p
== '{')
4884 /* We have a switch spec. */
4885 validate_switches (p
+ 1);
4888 /* Look at the switch-name that comes after START
4889 and mark as valid all supplied switches that match it. */
4892 validate_switches (start
)
4895 register char *p
= start
;
4910 while (*p
!= ':' && *p
!= '}') p
++;
4914 else if (p
[-1] == '*')
4916 /* Mark all matching switches as valid. */
4918 for (i
= 0; i
< n_switches
; i
++)
4919 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4920 switches
[i
].valid
= 1;
4924 /* Mark an exact matching switch as valid. */
4925 for (i
= 0; i
< n_switches
; i
++)
4927 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4928 && switches
[i
].part1
[p
- filter
] == 0)
4929 switches
[i
].valid
= 1;
4934 /* Check whether a particular argument was used. */
4943 for (i
= 0; i
< n_switches
; i
++)
4944 if (! strncmp (switches
[i
].part1
, p
, len
)
4945 && strlen (switches
[i
].part1
) == len
)
4950 /* Work out the subdirectory to use based on the
4951 options. The format of multilib_select is a list of elements.
4952 Each element is a subdirectory name followed by a list of options
4953 followed by a semicolon. gcc will consider each line in turn. If
4954 none of the options beginning with an exclamation point are
4955 present, and all of the other options are present, that
4956 subdirectory will be used. */
4961 char *p
= multilib_select
;
4963 char *this_path
, *this_arg
;
4968 /* Ignore newlines. */
4975 /* Get the initial path. */
4983 this_path_len
= p
- this_path
;
4985 /* Check the arguments. */
5000 while (*p
!= ' ' && *p
!= ';')
5007 if (*this_arg
== '!')
5008 failed
= used_arg (this_arg
+ 1, p
- (this_arg
+ 1));
5010 failed
= ! used_arg (this_arg
, p
- this_arg
);
5018 if (this_path_len
!= 1
5019 || this_path
[0] != '.')
5021 multilib_dir
= xmalloc (this_path_len
+ 1);
5022 strncpy (multilib_dir
, this_path
, this_path_len
);
5023 multilib_dir
[this_path_len
] = '\0';
5032 /* Print out the multiple library subdirectory selection
5033 information. This prints out a series of lines. Each line looks
5034 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5035 required. Only the desired options are printed out, the negative
5036 matches. The options are print without a leading dash. There are
5037 no spaces to make it easy to use the information in the shell.
5038 Each subdirectory is printed only once. This assumes the ordering
5039 generated by the genmultilib script. */
5042 print_multilib_info ()
5044 char *p
= multilib_select
;
5045 char *last_path
, *this_path
;
5046 int last_path_len
, skip
, use_arg
;
5050 /* Ignore newlines. */
5057 /* Get the initial path. */
5066 /* If this is a duplicate, skip it. */
5067 skip
= (p
- this_path
== last_path_len
5068 && ! strncmp (last_path
, this_path
, last_path_len
));
5070 last_path
= this_path
;
5071 last_path_len
= p
- this_path
;
5077 for (p1
= last_path
; p1
< p
; p1
++)
5096 use_arg
= *p
!= '!';
5101 while (*p
!= ' ' && *p
!= ';')