1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 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, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
34 #include <sys/types.h>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
46 #include "gansidecl.h"
61 /* ??? Need to find a GCC header to put these in. */
62 extern int pexecute
PROTO ((const char *, char * const *, const char *,
63 const char *, char **, char **, int));
64 extern int pwait
PROTO ((int, int *, int));
65 /* Flag arguments to pexecute. */
66 #define PEXECUTE_FIRST 1
67 #define PEXECUTE_LAST 2
68 #define PEXECUTE_SEARCH 4
69 #define PEXECUTE_VERBOSE 8
72 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
75 #define WTERMSIG(S) ((S) & 0x7f)
78 #define WIFEXITED(S) (((S) & 0xff) == 0)
81 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
84 /* Define O_RDONLY if the system hasn't defined it for us. */
93 /* Test if something is a normal file. */
95 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
98 /* Test if something is a directory. */
100 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
103 /* By default there is no special suffix for executables. */
104 #ifdef EXECUTABLE_SUFFIX
105 #define HAVE_EXECUTABLE_SUFFIX
107 #define EXECUTABLE_SUFFIX ""
110 /* By default, the suffix for object files is ".o". */
112 #define HAVE_OBJECT_SUFFIX
114 #define OBJECT_SUFFIX ".o"
117 /* By default, colon separates directories in a path. */
118 #ifndef PATH_SEPARATOR
119 #define PATH_SEPARATOR ':'
122 #ifndef DIR_SEPARATOR
123 #define DIR_SEPARATOR '/'
126 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
128 #define obstack_chunk_alloc xmalloc
129 #define obstack_chunk_free free
132 extern char *getenv ();
134 extern char *choose_temp_base
PROTO((void));
140 #ifndef HAVE_STRERROR
143 extern const char *const sys_errlist
[];
145 extern char *sys_errlist
[];
148 extern char *strerror();
151 /* If a stage of compilation returns an exit status >= 1,
152 compilation of that file ceases. */
154 #define MIN_FATAL_STATUS 1
156 /* Flag saying to print the directories gcc will search through looking for
157 programs, libraries, etc. */
159 static int print_search_dirs
;
161 /* Flag saying to print the full filename of this file
162 as found through our usual search mechanism. */
164 static char *print_file_name
= NULL
;
166 /* As print_file_name, but search for executable file. */
168 static char *print_prog_name
= NULL
;
170 /* Flag saying to print the relative path we'd use to
171 find libgcc.a given the current compiler flags. */
173 static int print_multi_directory
;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib
;
180 /* Flag indicating whether we should print the command and arguments */
182 static int verbose_flag
;
184 /* Nonzero means write "temp" files in source directory
185 and use the source file's name in them, and don't delete them. */
187 static int save_temps_flag
;
189 /* The compiler version. */
191 static char *compiler_version
;
193 /* The target version specified with -V */
195 static char *spec_version
= DEFAULT_TARGET_VERSION
;
197 /* The target machine specified with -b. */
199 static char *spec_machine
= DEFAULT_TARGET_MACHINE
;
201 /* Nonzero if cross-compiling.
202 When -b is used, the value comes from the `specs' file. */
205 static int cross_compile
= 1;
207 static int cross_compile
= 0;
210 /* The number of errors that have occurred; the link phase will not be
211 run if this is non-zero. */
212 static int error_count
= 0;
214 /* This is the obstack which we use to allocate many strings. */
216 static struct obstack obstack
;
218 /* This is the obstack to build an environment variable to pass to
219 collect2 that describes all of the relevant switches of what to
220 pass the compiler in building the list of pointers to constructors
223 static struct obstack collect_obstack
;
225 extern char *version_string
;
227 /* Forward declaration for prototypes. */
230 static void set_spec
PROTO((char *, char *));
231 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
232 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
233 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
234 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
235 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
236 static char *skip_whitespace
PROTO((char *));
237 static void record_temp_file
PROTO((char *, int, int));
238 static void delete_if_ordinary
PROTO((char *));
239 static void delete_temp_files
PROTO((void));
240 static void delete_failure_queue
PROTO((void));
241 static void clear_failure_queue
PROTO((void));
242 static int check_live_switch
PROTO((int, int));
243 static char *handle_braces
PROTO((char *));
244 static char *save_string
PROTO((char *, int));
245 static char *concat
PVPROTO((char *, ...));
246 static int do_spec
PROTO((char *));
247 static int do_spec_1
PROTO((char *, int, char *));
248 static char *find_file
PROTO((char *));
249 static int is_directory
PROTO((char *, char *, int));
250 static void validate_switches
PROTO((char *));
251 static void validate_all_switches
PROTO((void));
252 static void give_switch
PROTO((int, int));
253 static int used_arg
PROTO((char *, int));
254 static int default_arg
PROTO((char *, int));
255 static void set_multilib_dir
PROTO((void));
256 static void print_multilib_info
PROTO((void));
257 static void pfatal_with_name
PROTO((char *));
258 static void perror_with_name
PROTO((char *));
259 static void pfatal_pexecute
PROTO((char *, char *));
261 static void fatal
PVPROTO((char *, ...));
262 static void error
PVPROTO((char *, ...));
264 /* We must not provide any prototype here, even if ANSI C. */
265 static void fatal
PROTO(());
266 static void error
PROTO(());
273 /* Specs are strings containing lines, each of which (if not blank)
274 is made up of a program name, and arguments separated by spaces.
275 The program name must be exact and start from root, since no path
276 is searched and it is unreliable to depend on the current working directory.
277 Redirection of input or output is not supported; the subprograms must
278 accept filenames saying what files to read and write.
280 In addition, the specs can contain %-sequences to substitute variable text
281 or for conditional text. Here is a table of all defined %-sequences.
282 Note that spaces are not generated automatically around the results of
283 expanding these sequences; therefore, you can concatenate them together
284 or with constant text in a single argument.
286 %% substitute one % into the program name or argument.
287 %i substitute the name of the input file being processed.
288 %b substitute the basename of the input file being processed.
289 This is the substring up to (and not including) the last period
290 and not including the directory.
291 %g substitute the temporary-file-name-base. This is a string chosen
292 once per compilation. Different temporary file names are made by
293 concatenation of constant strings on the end, as in `%g.s'.
294 %g also has the same effect of %d.
295 %u like %g, but make the temporary file name unique.
296 %U returns the last file name generated with %u.
297 %d marks the argument containing or following the %d as a
298 temporary file name, so that that file will be deleted if CC exits
299 successfully. Unlike %g, this contributes no text to the argument.
300 %w marks the argument containing or following the %w as the
301 "output file" of this compilation. This puts the argument
302 into the sequence of arguments that %o will substitute later.
304 like %{...} but mark last argument supplied within
305 as a file to be deleted on failure.
306 %o substitutes the names of all the output files, with spaces
307 automatically placed around them. You should write spaces
308 around the %o as well or the results are undefined.
309 %o is for use in the specs for running the linker.
310 Input files whose names have no recognized suffix are not compiled
311 at all, but they are included among the output files, so they will
313 %O substitutes the suffix for object files.
314 %p substitutes the standard macro predefinitions for the
315 current target machine. Use this when running cpp.
316 %P like %p, but puts `__' before and after the name of each macro.
317 (Except macros that already have __.)
319 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
320 %s current argument is the name of a library or startup file of some sort.
321 Search for that file in a standard list of directories
322 and substitute the full name found.
323 %eSTR Print STR as an error message. STR is terminated by a newline.
324 Use this when inconsistent options are detected.
325 %x{OPTION} Accumulate an option for %X.
326 %X Output the accumulated linker options specified by compilations.
327 %Y Output the accumulated assembler options specified by compilations.
328 %Z Output the accumulated preprocessor options specified by compilations.
329 %v1 Substitute the major version number of GCC.
330 (For version 2.5.n, this is 2.)
331 %v2 Substitute the minor version number of GCC.
332 (For version 2.5.n, this is 5.)
333 %a process ASM_SPEC as a spec.
334 This allows config.h to specify part of the spec for running as.
335 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
336 used here. This can be used to run a post-processor after the
337 assembler has done it's job.
338 %D Dump out a -L option for each directory in startfile_prefixes.
339 If multilib_dir is set, extra entries are generated with it affixed.
340 %l process LINK_SPEC as a spec.
341 %L process LIB_SPEC as a spec.
342 %G process LIBGCC_SPEC as a spec.
343 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
344 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
345 %c process SIGNED_CHAR_SPEC as a spec.
346 %C process CPP_SPEC as a spec. A capital C is actually used here.
347 %1 process CC1_SPEC as a spec.
348 %2 process CC1PLUS_SPEC as a spec.
349 %| output "-" if the input for the current command is coming from a pipe.
350 %* substitute the variable part of a matched option. (See below.)
351 Note that each comma in the substituted string is replaced by
353 %{S} substitutes the -S switch, if that switch was given to CC.
354 If that switch was not specified, this substitutes nothing.
355 Here S is a metasyntactic variable.
356 %{S*} substitutes all the switches specified to CC whose names start
357 with -S. This is used for -o, -D, -I, etc; switches that take
358 arguments. CC considers `-o foo' as being one switch whose
359 name starts with `o'. %{o*} would substitute this text,
360 including the space; thus, two arguments would be generated.
361 %{S*:X} substitutes X if one or more switches whose names start with -S are
362 specified to CC. Note that the tail part of the -S option
363 (i.e. the part matched by the `*') will be substituted for each
364 occurrence of %* within X.
365 %{S:X} substitutes X, but only if the -S switch was given to CC.
366 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
367 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
368 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
369 %{.S:X} substitutes X, but only if processing a file with suffix S.
370 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
371 %(Spec) processes a specification defined in a specs file as *Spec:
372 %[Spec] as above, but put __ around -D arguments
374 The conditional text X in a %{S:X} or %{!S:X} construct may contain
375 other nested % constructs or spaces, or even newlines. They are
376 processed as usual, as described above.
378 The -O, -f, -m, and -W switches are handled specifically in these
379 constructs. If another value of -O or the negated form of a -f, -m, or
380 -W switch is found later in the command line, the earlier switch
381 value is ignored, except with {S*} where S is just one letter; this
382 passes all matching options.
384 The character | is used to indicate that a command should be piped to
385 the following command, but only if -pipe is specified.
387 Note that it is built into CC which switches take arguments and which
388 do not. You might think it would be useful to generalize this to
389 allow each compiler's spec to say which switches take arguments. But
390 this cannot be done in a consistent fashion. CC cannot even decide
391 which input files have been specified without knowing which switches
392 take arguments, and it must know which input files to compile in order
393 to tell which compilers to run.
395 CC also knows implicitly that arguments starting in `-l' are to be
396 treated as compiler output files, and passed to the linker in their
397 proper position among the other output files. */
399 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
401 /* config.h can define ASM_SPEC to provide extra args to the assembler
402 or extra switch-translations. */
407 /* config.h can define ASM_FINAL_SPEC to run a post processor after
408 the assembler has run. */
409 #ifndef ASM_FINAL_SPEC
410 #define ASM_FINAL_SPEC ""
413 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
414 or extra switch-translations. */
419 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
420 or extra switch-translations. */
425 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
426 or extra switch-translations. */
428 #define CC1PLUS_SPEC ""
431 /* config.h can define LINK_SPEC to provide extra args to the linker
432 or extra switch-translations. */
437 /* config.h can define LIB_SPEC to override the default libraries. */
439 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
442 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
445 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
446 /* Have gcc do the search for libgcc.a. */
447 #define LIBGCC_SPEC "libgcc.a%s"
449 #define LIBGCC_SPEC "-lgcc"
453 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
454 #ifndef STARTFILE_SPEC
455 #define STARTFILE_SPEC \
456 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
459 /* config.h can define SWITCHES_NEED_SPACES to control which options
460 require spaces between the option and the argument. */
461 #ifndef SWITCHES_NEED_SPACES
462 #define SWITCHES_NEED_SPACES ""
465 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
467 #define ENDFILE_SPEC ""
470 /* This spec is used for telling cpp whether char is signed or not. */
471 #ifndef SIGNED_CHAR_SPEC
472 /* Use #if rather than ?:
473 because MIPS C compiler rejects like ?: in initializers. */
474 #if DEFAULT_SIGNED_CHAR
475 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
477 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
481 static char *cpp_spec
= CPP_SPEC
;
482 static char *cpp_predefines
= CPP_PREDEFINES
;
483 static char *cc1_spec
= CC1_SPEC
;
484 static char *cc1plus_spec
= CC1PLUS_SPEC
;
485 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
486 static char *asm_spec
= ASM_SPEC
;
487 static char *asm_final_spec
= ASM_FINAL_SPEC
;
488 static char *link_spec
= LINK_SPEC
;
489 static char *lib_spec
= LIB_SPEC
;
490 static char *libgcc_spec
= LIBGCC_SPEC
;
491 static char *endfile_spec
= ENDFILE_SPEC
;
492 static char *startfile_spec
= STARTFILE_SPEC
;
493 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
495 /* Some compilers have limits on line lengths, and the multilib_select
496 and/or multilib_matches strings can be very long, so we build them at
498 static struct obstack multilib_obstack
;
499 static char *multilib_select
;
500 static char *multilib_matches
;
501 static char *multilib_defaults
;
502 #include "multilib.h"
504 /* Check whether a particular argument is a default argument. */
506 #ifndef MULTILIB_DEFAULTS
507 #define MULTILIB_DEFAULTS { "" }
510 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
513 static struct { char *name
, *spec
; } extra_specs
[] = { EXTRA_SPECS
};
516 /* This defines which switch letters take arguments. */
518 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
519 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
520 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
521 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
522 || (CHAR) == 'L' || (CHAR) == 'A')
524 #ifndef SWITCH_TAKES_ARG
525 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
528 /* This defines which multi-letter switches take arguments. */
530 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
531 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
532 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
533 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
534 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
535 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
536 || !strcmp (STR, "isystem"))
538 #ifndef WORD_SWITCH_TAKES_ARG
539 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
542 /* Record the mapping from file suffixes for compilation specs. */
546 char *suffix
; /* Use this compiler for input files
547 whose names end in this suffix. */
549 char *spec
[4]; /* To use this compiler, concatenate these
550 specs and pass to do_spec. */
553 /* Pointer to a vector of `struct compiler' that gives the spec for
554 compiling a file, based on its suffix.
555 A file that does not end in any of these suffixes will be passed
556 unchanged to the loader and nothing else will be done to it.
558 An entry containing two 0s is used to terminate the vector.
560 If multiple entries match a file, the last matching one is used. */
562 static struct compiler
*compilers
;
564 /* Number of entries in `compilers', not counting the null terminator. */
566 static int n_compilers
;
568 /* The default list of file name suffixes and their compilation specs. */
570 static struct compiler default_compilers
[] =
572 /* Add lists of suffixes of known languages here. If those languages
573 were no present when we built the driver, we will hit these copies
574 and given a more meaningful error than "file not used since
575 linking is not done". */
576 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
577 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
578 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
579 {".fpp", "#Fortran"},
580 /* Next come the entries for C. */
583 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
584 %{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
586 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
587 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
588 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
589 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
590 %{traditional-cpp:-traditional}\
591 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
592 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
593 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
594 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
595 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
596 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
598 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
599 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
601 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
602 %{!pipe:%g.s} %A\n }}}}"},
604 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
605 %{C:%{!E:%eGNU C does not support -C without using -E}}\
606 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
607 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
608 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
609 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
610 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
611 %{traditional-cpp:-traditional}\
612 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
614 %{!E:%e-E required when input is from standard input}"},
615 {".m", "@objective-c"},
617 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
618 %{C:%{!E:%eGNU C does not support -C without using -E}}\
619 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
620 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
621 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
622 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
623 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
624 %{traditional-cpp:-traditional}\
625 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
627 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
628 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
629 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
630 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
631 -lang-objc %{gen-decls} \
633 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
634 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
636 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
637 %{!pipe:%g.s} %A\n }}}}"},
640 "%{!E:%eCompilation of header file requested} \
641 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
642 %{C:%{!E:%eGNU C does not support -C without using -E}}\
643 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
644 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
645 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
646 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
647 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
648 %{traditional-cpp:-traditional}\
649 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
651 {".i", "@cpp-output"},
653 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
654 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
655 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
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\
660 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
661 %{!pipe:%g.s} %A\n }}}}"},
662 {".s", "@assembler"},
664 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
665 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
667 {".S", "@assembler-with-cpp"},
668 {"@assembler-with-cpp",
669 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
670 %{C:%{!E:%eGNU C does not support -C without using -E}}\
671 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
672 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
673 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
674 %{traditional-cpp:-traditional}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
676 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
677 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
678 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 %{!pipe:%g.s} %A\n }}}}"},
681 /* Mark end of table */
685 /* Number of elements in default_compilers, not counting the terminator. */
687 static int n_default_compilers
688 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
690 /* Here is the spec for running the linker, after compiling all files. */
692 /* -u* was put back because both BSD and SysV seem to support it. */
693 /* %{static:} simply prevents an error message if the target machine
694 doesn't handle -static. */
695 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
696 scripts which exist in user specified directories, or in standard
698 #ifdef LINK_LIBGCC_SPECIAL
699 /* Don't generate -L options. */
700 static char *link_command_spec
= "\
702 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
703 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
704 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
705 %{static:} %{L*} %{T*} %o\
706 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
707 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
710 static char *link_command_spec
= "\
712 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
713 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
714 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
715 %{static:} %{L*} %D %{T*} %o\
716 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
717 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
720 /* A vector of options to give to the linker.
721 These options are accumulated by %x,
722 and substituted into the linker command with %X. */
723 static int n_linker_options
;
724 static char **linker_options
;
726 /* A vector of options to give to the assembler.
727 These options are accumulated by -Wa,
728 and substituted into the assembler command with %Y. */
729 static int n_assembler_options
;
730 static char **assembler_options
;
732 /* A vector of options to give to the preprocessor.
733 These options are accumulated by -Wp,
734 and substituted into the preprocessor command with %Z. */
735 static int n_preprocessor_options
;
736 static char **preprocessor_options
;
738 /* Define how to map long options into short ones. */
740 /* This structure describes one mapping. */
743 /* The long option's name. */
745 /* The equivalent short option. */
747 /* Argument info. A string of flag chars; NULL equals no options.
748 a => argument required.
749 o => argument optional.
750 j => join argument to equivalent, making one word.
751 * => require other text after NAME as an argument. */
755 /* This is the table of mappings. Mappings are tried sequentially
756 for each option encountered; the first one that matches, wins. */
758 struct option_map option_map
[] =
760 {"--all-warnings", "-Wall", 0},
761 {"--ansi", "-ansi", 0},
762 {"--assemble", "-S", 0},
763 {"--assert", "-A", "a"},
764 {"--comments", "-C", 0},
765 {"--compile", "-c", 0},
766 {"--debug", "-g", "oj"},
767 {"--define-macro", "-D", "a"},
768 {"--dependencies", "-M", 0},
769 {"--dump", "-d", "a"},
770 {"--dumpbase", "-dumpbase", "a"},
771 {"--entry", "-e", 0},
772 {"--extra-warnings", "-W", 0},
773 {"--for-assembler", "-Wa", "a"},
774 {"--for-linker", "-Xlinker", "a"},
775 {"--force-link", "-u", "a"},
776 {"--imacros", "-imacros", "a"},
777 {"--include", "-include", "a"},
778 {"--include-barrier", "-I-", 0},
779 {"--include-directory", "-I", "a"},
780 {"--include-directory-after", "-idirafter", "a"},
781 {"--include-prefix", "-iprefix", "a"},
782 {"--include-with-prefix", "-iwithprefix", "a"},
783 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
784 {"--include-with-prefix-after", "-iwithprefix", "a"},
785 {"--language", "-x", "a"},
786 {"--library-directory", "-L", "a"},
787 {"--machine", "-m", "aj"},
788 {"--machine-", "-m", "*j"},
789 {"--no-line-commands", "-P", 0},
790 {"--no-precompiled-includes", "-noprecomp", 0},
791 {"--no-standard-includes", "-nostdinc", 0},
792 {"--no-standard-libraries", "-nostdlib", 0},
793 {"--no-warnings", "-w", 0},
794 {"--optimize", "-O", "oj"},
795 {"--output", "-o", "a"},
796 {"--pedantic", "-pedantic", 0},
797 {"--pedantic-errors", "-pedantic-errors", 0},
798 {"--pipe", "-pipe", 0},
799 {"--prefix", "-B", "a"},
800 {"--preprocess", "-E", 0},
801 {"--print-search-dirs", "-print-search-dirs", 0},
802 {"--print-file-name", "-print-file-name=", "aj"},
803 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
804 {"--print-missing-file-dependencies", "-MG", 0},
805 {"--print-multi-lib", "-print-multi-lib", 0},
806 {"--print-multi-directory", "-print-multi-directory", 0},
807 {"--print-prog-name", "-print-prog-name=", "aj"},
808 {"--profile", "-p", 0},
809 {"--profile-blocks", "-a", 0},
810 {"--quiet", "-q", 0},
811 {"--save-temps", "-save-temps", 0},
812 {"--shared", "-shared", 0},
813 {"--silent", "-q", 0},
814 {"--static", "-static", 0},
815 {"--symbolic", "-symbolic", 0},
816 {"--target", "-b", "a"},
817 {"--trace-includes", "-H", 0},
818 {"--traditional", "-traditional", 0},
819 {"--traditional-cpp", "-traditional-cpp", 0},
820 {"--trigraphs", "-trigraphs", 0},
821 {"--undefine-macro", "-U", "a"},
822 {"--use-version", "-V", "a"},
823 {"--user-dependencies", "-MM", 0},
824 {"--verbose", "-v", 0},
825 {"--version", "-dumpversion", 0},
826 {"--warn-", "-W", "*j"},
827 {"--write-dependencies", "-MD", 0},
828 {"--write-user-dependencies", "-MMD", 0},
832 /* Translate the options described by *ARGCP and *ARGVP.
833 Make a new vector and store it back in *ARGVP,
834 and store its length in *ARGVC. */
837 translate_options (argcp
, argvp
)
843 char **argv
= *argvp
;
844 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
848 newv
[newindex
++] = argv
[i
++];
852 /* Translate -- options. */
853 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
855 /* Find a mapping that applies to this option. */
856 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
858 int optlen
= strlen (option_map
[j
].name
);
859 int arglen
= strlen (argv
[i
]);
860 int complen
= arglen
> optlen
? optlen
: arglen
;
861 char *arginfo
= option_map
[j
].arg_info
;
866 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
873 k
< sizeof (option_map
) / sizeof (option_map
[0]);
875 if (strlen (option_map
[k
].name
) >= arglen
876 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
878 error ("Ambiguous abbreviation %s", argv
[i
]);
882 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
888 /* If the option has an argument, accept that. */
889 if (argv
[i
][optlen
] == '=')
890 arg
= argv
[i
] + optlen
+ 1;
892 /* If this mapping requires extra text at end of name,
893 accept that as "argument". */
894 else if (index (arginfo
, '*') != 0)
895 arg
= argv
[i
] + optlen
;
897 /* Otherwise, extra text at end means mismatch.
898 Try other mappings. */
903 else if (index (arginfo
, '*') != 0)
905 error ("Incomplete `%s' option", option_map
[j
].name
);
909 /* Handle arguments. */
910 if (index (arginfo
, 'a') != 0)
916 error ("Missing argument to `%s' option",
924 else if (index (arginfo
, '*') != 0)
926 else if (index (arginfo
, 'o') == 0)
929 error ("Extraneous argument to `%s' option",
934 /* Store the translation as one argv elt or as two. */
935 if (arg
!= 0 && index (arginfo
, 'j') != 0)
936 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
940 newv
[newindex
++] = option_map
[j
].equivalent
;
941 newv
[newindex
++] = arg
;
944 newv
[newindex
++] = option_map
[j
].equivalent
;
952 /* Handle old-fashioned options--just copy them through,
953 with their arguments. */
954 else if (argv
[i
][0] == '-')
956 char *p
= argv
[i
] + 1;
960 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
961 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
962 else if (WORD_SWITCH_TAKES_ARG (p
))
963 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
964 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
967 else if (! strcmp (p
, "Xlinker"))
970 /* Watch out for an option at the end of the command line that
971 is missing arguments, and avoid skipping past the end of the
973 if (nskip
+ i
> argc
)
978 newv
[newindex
++] = argv
[i
++];
983 /* Ordinary operands, or +e options. */
984 newv
[newindex
++] = argv
[i
++];
1003 static char buffer
[30];
1005 return "cannot access";
1007 if (e
> 0 && e
< sys_nerr
)
1008 return sys_errlist
[e
];
1010 sprintf (buffer
, "Unknown error %d", e
);
1015 /* Read compilation specs from a file named FILENAME,
1016 replacing the default ones.
1018 A suffix which starts with `*' is a definition for
1019 one of the machine-specific sub-specs. The "suffix" should be
1020 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1021 The corresponding spec is stored in asm_spec, etc.,
1022 rather than in the `compilers' vector.
1024 Anything invalid in the file is a fatal error. */
1027 read_specs (filename
)
1032 struct stat statbuf
;
1037 fprintf (stderr
, "Reading specs from %s\n", filename
);
1039 /* Open and stat the file. */
1040 desc
= open (filename
, O_RDONLY
, 0);
1042 pfatal_with_name (filename
);
1043 if (stat (filename
, &statbuf
) < 0)
1044 pfatal_with_name (filename
);
1046 /* Read contents of file into BUFFER. */
1047 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1048 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1050 pfatal_with_name (filename
);
1051 buffer
[readlen
] = 0;
1054 /* Scan BUFFER for specs, putting them in the vector. */
1060 char *in
, *out
, *p1
, *p2
;
1062 /* Advance P in BUFFER to the next nonblank nocomment line. */
1063 p
= skip_whitespace (p
);
1067 /* Find the colon that should end the suffix. */
1069 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1070 /* The colon shouldn't be missing. */
1072 fatal ("specs file malformed after %d characters", p1
- buffer
);
1073 /* Skip back over trailing whitespace. */
1075 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1076 /* Copy the suffix to a string. */
1077 suffix
= save_string (p
, p2
- p
);
1078 /* Find the next line. */
1079 p
= skip_whitespace (p1
+ 1);
1081 fatal ("specs file malformed after %d characters", p
- buffer
);
1083 /* Find next blank line. */
1084 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1085 /* Specs end at the blank line and do not include the newline. */
1086 spec
= save_string (p
, p1
- p
);
1089 /* Delete backslash-newline sequences from the spec. */
1094 if (in
[0] == '\\' && in
[1] == '\n')
1096 else if (in
[0] == '#')
1098 while (*in
&& *in
!= '\n') in
++;
1105 if (suffix
[0] == '*')
1107 if (! strcmp (suffix
, "*link_command"))
1108 link_command_spec
= spec
;
1110 set_spec (suffix
+ 1, spec
);
1114 /* Add this pair to the vector. */
1116 = ((struct compiler
*)
1117 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1118 compilers
[n_compilers
].suffix
= suffix
;
1119 bzero ((char *) compilers
[n_compilers
].spec
,
1120 sizeof compilers
[n_compilers
].spec
);
1121 compilers
[n_compilers
].spec
[0] = spec
;
1123 bzero ((char *) &compilers
[n_compilers
],
1124 sizeof compilers
[n_compilers
]);
1128 link_command_spec
= spec
;
1131 if (link_command_spec
== 0)
1132 fatal ("spec file has no spec for linking");
1141 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1142 be considered whitespace. */
1143 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1145 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1149 while (*p
!= '\n') p
++;
1159 /* Structure to keep track of the specs that have been defined so far.
1160 These are accessed using %(specname) or %[specname] in a compiler
1165 char *name
; /* Name of the spec. */
1166 char *spec
; /* The spec itself. */
1167 struct spec_list
*next
; /* Next spec in linked list. */
1170 /* List of specs that have been defined so far. */
1172 static struct spec_list
*specs
= (struct spec_list
*) 0;
1174 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1175 removed; If the spec starts with a + then SPEC is added to the end of the
1179 set_spec (name
, spec
)
1183 struct spec_list
*sl
;
1186 /* See if the spec already exists */
1187 for (sl
= specs
; sl
; sl
= sl
->next
)
1188 if (strcmp (sl
->name
, name
) == 0)
1193 /* Not found - make it */
1194 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1195 sl
->name
= save_string (name
, strlen (name
));
1196 sl
->spec
= save_string ("", 0);
1201 old_spec
= sl
->spec
;
1202 if (name
&& spec
[0] == '+' && isspace (spec
[1]))
1203 sl
->spec
= concat (old_spec
, spec
+ 1, NULL_PTR
);
1205 sl
->spec
= save_string (spec
, strlen (spec
));
1207 if (! strcmp (name
, "asm"))
1208 asm_spec
= sl
->spec
;
1209 else if (! strcmp (name
, "asm_final"))
1210 asm_final_spec
= sl
->spec
;
1211 else if (! strcmp (name
, "cc1"))
1212 cc1_spec
= sl
->spec
;
1213 else if (! strcmp (name
, "cc1plus"))
1214 cc1plus_spec
= sl
->spec
;
1215 else if (! strcmp (name
, "cpp"))
1216 cpp_spec
= sl
->spec
;
1217 else if (! strcmp (name
, "endfile"))
1218 endfile_spec
= sl
->spec
;
1219 else if (! strcmp (name
, "lib"))
1220 lib_spec
= sl
->spec
;
1221 else if (! strcmp (name
, "libgcc"))
1222 libgcc_spec
= sl
->spec
;
1223 else if (! strcmp (name
, "link"))
1224 link_spec
= sl
->spec
;
1225 else if (! strcmp (name
, "predefines"))
1226 cpp_predefines
= sl
->spec
;
1227 else if (! strcmp (name
, "signed_char"))
1228 signed_char_spec
= sl
->spec
;
1229 else if (! strcmp (name
, "startfile"))
1230 startfile_spec
= sl
->spec
;
1231 else if (! strcmp (name
, "switches_need_spaces"))
1232 switches_need_spaces
= sl
->spec
;
1233 else if (! strcmp (name
, "cross_compile"))
1234 cross_compile
= atoi (sl
->spec
);
1235 else if (! strcmp (name
, "multilib"))
1236 multilib_select
= sl
->spec
;
1237 else if (! strcmp (name
, "multilib_matches"))
1238 multilib_matches
= sl
->spec
;
1239 else if (! strcmp (name
, "multilib_extra"))
1240 multilib_extra
= sl
->spec
;
1241 else if (! strcmp (name
, "multilib_defaults"))
1242 multilib_defaults
= sl
->spec
;
1243 else if (! strcmp (name
, "version"))
1244 compiler_version
= sl
->spec
;
1249 for (i
= 0; i
< sizeof (extra_specs
) / sizeof (extra_specs
[0]); i
++)
1251 if (! strcmp (name
, extra_specs
[i
].name
))
1253 extra_specs
[i
].spec
= sl
->spec
;
1260 /* Free the old spec */
1265 /* Accumulate a command (program name and args), and run it. */
1267 /* Vector of pointers to arguments in the current line of specifications. */
1269 static char **argbuf
;
1271 /* Number of elements allocated in argbuf. */
1273 static int argbuf_length
;
1275 /* Number of elements in argbuf currently in use (containing args). */
1277 static int argbuf_index
;
1279 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1280 temp file. Used only if MKTEMP_EACH_FILE. */
1282 static struct temp_name
{
1283 char *suffix
; /* suffix associated with the code. */
1284 int length
; /* strlen (suffix). */
1285 int unique
; /* Indicates whether %g or %u/%U was used. */
1286 char *filename
; /* associated filename. */
1287 int filename_length
; /* strlen (filename). */
1288 struct temp_name
*next
;
1291 /* Number of commands executed so far. */
1293 static int execution_count
;
1295 /* Number of commands that exited with a signal. */
1297 static int signal_count
;
1299 /* Name with which this program was invoked. */
1301 static char *programname
;
1303 /* Structures to keep track of prefixes to try when looking for files. */
1307 char *prefix
; /* String to prepend to the path. */
1308 struct prefix_list
*next
; /* Next in linked list. */
1309 int require_machine_suffix
; /* Don't use without machine_suffix. */
1310 /* 2 means try both machine_suffix and just_machine_suffix. */
1311 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1316 struct prefix_list
*plist
; /* List of prefixes to try */
1317 int max_len
; /* Max length of a prefix in PLIST */
1318 char *name
; /* Name of this list (used in config stuff) */
1321 /* List of prefixes to try when looking for executables. */
1323 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1325 /* List of prefixes to try when looking for startup (crt0) files. */
1327 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1329 /* List of prefixes to try when looking for include files. */
1331 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1333 /* Suffix to attach to directories searched for commands.
1334 This looks like `MACHINE/VERSION/'. */
1336 static char *machine_suffix
= 0;
1338 /* Suffix to attach to directories searched for commands.
1339 This is just `MACHINE/'. */
1341 static char *just_machine_suffix
= 0;
1343 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1345 static char *gcc_exec_prefix
;
1347 /* Default prefixes to attach to command names. */
1349 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1350 #undef MD_EXEC_PREFIX
1351 #undef MD_STARTFILE_PREFIX
1352 #undef MD_STARTFILE_PREFIX_1
1355 #ifndef STANDARD_EXEC_PREFIX
1356 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1357 #endif /* !defined STANDARD_EXEC_PREFIX */
1359 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1360 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1361 #ifdef MD_EXEC_PREFIX
1362 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1365 #ifndef STANDARD_STARTFILE_PREFIX
1366 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1367 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1369 #ifdef MD_STARTFILE_PREFIX
1370 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1372 #ifdef MD_STARTFILE_PREFIX_1
1373 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1375 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1376 static char *standard_startfile_prefix_1
= "/lib/";
1377 static char *standard_startfile_prefix_2
= "/usr/lib/";
1379 #ifndef TOOLDIR_BASE_PREFIX
1380 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1382 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1383 static char *tooldir_prefix
;
1385 /* Subdirectory to use for locating libraries. Set by
1386 set_multilib_dir based on the compilation options. */
1388 static char *multilib_dir
;
1390 /* Clear out the vector of arguments (after a command is executed). */
1398 /* Add one argument to the vector at the end.
1399 This is done when a space is seen or at the end of the line.
1400 If DELETE_ALWAYS is nonzero, the arg is a filename
1401 and the file should be deleted eventually.
1402 If DELETE_FAILURE is nonzero, the arg is a filename
1403 and the file should be deleted if this compilation fails. */
1406 store_arg (arg
, delete_always
, delete_failure
)
1408 int delete_always
, delete_failure
;
1410 if (argbuf_index
+ 1 == argbuf_length
)
1412 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1415 argbuf
[argbuf_index
++] = arg
;
1416 argbuf
[argbuf_index
] = 0;
1418 if (delete_always
|| delete_failure
)
1419 record_temp_file (arg
, delete_always
, delete_failure
);
1422 /* Record the names of temporary files we tell compilers to write,
1423 and delete them at the end of the run. */
1425 /* This is the common prefix we use to make temp file names.
1426 It is chosen once for each run of this program.
1427 It is substituted into a spec by %g.
1428 Thus, all temp file names contain this prefix.
1429 In practice, all temp file names start with this prefix.
1431 This prefix comes from the envvar TMPDIR if it is defined;
1432 otherwise, from the P_tmpdir macro if that is defined;
1433 otherwise, in /usr/tmp or /tmp;
1434 or finally the current directory if all else fails. */
1436 static char *temp_filename
;
1438 /* Length of the prefix. */
1440 static int temp_filename_length
;
1442 /* Define the list of temporary files to delete. */
1447 struct temp_file
*next
;
1450 /* Queue of files to delete on success or failure of compilation. */
1451 static struct temp_file
*always_delete_queue
;
1452 /* Queue of files to delete on failure of compilation. */
1453 static struct temp_file
*failure_delete_queue
;
1455 /* Record FILENAME as a file to be deleted automatically.
1456 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1457 otherwise delete it in any case.
1458 FAIL_DELETE nonzero means delete it if a compilation step fails;
1459 otherwise delete it in any case. */
1462 record_temp_file (filename
, always_delete
, fail_delete
)
1467 register char *name
;
1468 name
= xmalloc (strlen (filename
) + 1);
1469 strcpy (name
, filename
);
1473 register struct temp_file
*temp
;
1474 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1475 if (! strcmp (name
, temp
->name
))
1477 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1478 temp
->next
= always_delete_queue
;
1480 always_delete_queue
= temp
;
1486 register struct temp_file
*temp
;
1487 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1488 if (! strcmp (name
, temp
->name
))
1490 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1491 temp
->next
= failure_delete_queue
;
1493 failure_delete_queue
= temp
;
1498 /* Delete all the temporary files whose names we previously recorded. */
1501 delete_if_ordinary (name
)
1508 printf ("Delete %s? (y or n) ", name
);
1512 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1513 if (i
== 'y' || i
== 'Y')
1515 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1516 if (unlink (name
) < 0)
1518 perror_with_name (name
);
1522 delete_temp_files ()
1524 register struct temp_file
*temp
;
1526 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1527 delete_if_ordinary (temp
->name
);
1528 always_delete_queue
= 0;
1531 /* Delete all the files to be deleted on error. */
1534 delete_failure_queue ()
1536 register struct temp_file
*temp
;
1538 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1539 delete_if_ordinary (temp
->name
);
1543 clear_failure_queue ()
1545 failure_delete_queue
= 0;
1548 /* Routine to add variables to the environment. We do this to pass
1549 the pathname of the gcc driver, and the directories search to the
1550 collect2 program, which is being run as ld. This way, we can be
1551 sure of executing the right compiler when collect2 wants to build
1552 constructors and destructors. Since the environment variables we
1553 use come from an obstack, we don't have to worry about allocating
1562 #ifndef VMS /* nor about VMS */
1564 extern char **environ
;
1565 char **old_environ
= environ
;
1569 int str_len
= strlen (str
);
1573 while ((ch
= *p
++) != '\0' && ch
!= '=')
1579 /* Search for replacing an existing environment variable, and
1580 count the number of total environment variables. */
1581 for (envp
= old_environ
; *envp
; envp
++)
1584 if (!strncmp (str
, *envp
, name_len
))
1591 /* Add a new environment variable */
1592 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1594 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1595 sizeof (char *) * (num_envs
+1));
1600 #endif /* HAVE_PUTENV */
1603 /* Build a list of search directories from PATHS.
1604 PREFIX is a string to prepend to the list.
1605 If CHECK_DIR_P is non-zero we ensure the directory exists.
1606 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1607 It is also used by the --print-search-dirs flag. */
1610 build_search_list (paths
, prefix
, check_dir_p
)
1611 struct path_prefix
*paths
;
1615 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1617 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1618 int first_time
= TRUE
;
1619 struct prefix_list
*pprefix
;
1621 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1623 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1625 int len
= strlen (pprefix
->prefix
);
1629 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1632 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1635 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1636 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1639 if (just_machine_suffix
1640 && pprefix
->require_machine_suffix
== 2
1642 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1645 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1648 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1649 obstack_grow (&collect_obstack
, just_machine_suffix
,
1653 if (!pprefix
->require_machine_suffix
)
1656 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1659 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1662 obstack_1grow (&collect_obstack
, '\0');
1663 return obstack_finish (&collect_obstack
);
1666 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1670 putenv_from_prefixes (paths
, env_var
)
1671 struct path_prefix
*paths
;
1674 putenv (build_search_list (paths
, env_var
, 1));
1677 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1678 access to check permissions.
1679 Return 0 if not found, otherwise return its name, allocated with malloc. */
1682 find_a_file (pprefix
, name
, mode
)
1683 struct path_prefix
*pprefix
;
1688 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1689 struct prefix_list
*pl
;
1690 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1693 len
+= strlen (machine_suffix
);
1695 temp
= xmalloc (len
);
1697 /* Determine the filename to execute (special case for absolute paths). */
1699 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1701 if (access (name
, mode
))
1703 strcpy (temp
, name
);
1708 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1712 /* Some systems have a suffix for executable files.
1713 So try appending that first. */
1714 if (file_suffix
[0] != 0)
1716 strcpy (temp
, pl
->prefix
);
1717 strcat (temp
, machine_suffix
);
1718 strcat (temp
, name
);
1719 strcat (temp
, file_suffix
);
1720 if (access (temp
, mode
) == 0)
1722 if (pl
->used_flag_ptr
!= 0)
1723 *pl
->used_flag_ptr
= 1;
1728 /* Now try just the name. */
1729 strcpy (temp
, pl
->prefix
);
1730 strcat (temp
, machine_suffix
);
1731 strcat (temp
, name
);
1732 if (access (temp
, mode
) == 0)
1734 if (pl
->used_flag_ptr
!= 0)
1735 *pl
->used_flag_ptr
= 1;
1740 /* Certain prefixes are tried with just the machine type,
1741 not the version. This is used for finding as, ld, etc. */
1742 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1744 /* Some systems have a suffix for executable files.
1745 So try appending that first. */
1746 if (file_suffix
[0] != 0)
1748 strcpy (temp
, pl
->prefix
);
1749 strcat (temp
, just_machine_suffix
);
1750 strcat (temp
, name
);
1751 strcat (temp
, file_suffix
);
1752 if (access (temp
, mode
) == 0)
1754 if (pl
->used_flag_ptr
!= 0)
1755 *pl
->used_flag_ptr
= 1;
1760 strcpy (temp
, pl
->prefix
);
1761 strcat (temp
, just_machine_suffix
);
1762 strcat (temp
, name
);
1763 if (access (temp
, mode
) == 0)
1765 if (pl
->used_flag_ptr
!= 0)
1766 *pl
->used_flag_ptr
= 1;
1771 /* Certain prefixes can't be used without the machine suffix
1772 when the machine or version is explicitly specified. */
1773 if (!pl
->require_machine_suffix
)
1775 /* Some systems have a suffix for executable files.
1776 So try appending that first. */
1777 if (file_suffix
[0] != 0)
1779 strcpy (temp
, pl
->prefix
);
1780 strcat (temp
, name
);
1781 strcat (temp
, file_suffix
);
1782 if (access (temp
, mode
) == 0)
1784 if (pl
->used_flag_ptr
!= 0)
1785 *pl
->used_flag_ptr
= 1;
1790 strcpy (temp
, pl
->prefix
);
1791 strcat (temp
, name
);
1792 if (access (temp
, mode
) == 0)
1794 if (pl
->used_flag_ptr
!= 0)
1795 *pl
->used_flag_ptr
= 1;
1805 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1806 at the start of the list, otherwise it goes at the end.
1808 If WARN is nonzero, we will warn if no file is found
1809 through this prefix. WARN should point to an int
1810 which will be set to 1 if this entry is used.
1812 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1813 the complete value of machine_suffix.
1814 2 means try both machine_suffix and just_machine_suffix. */
1817 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1818 struct path_prefix
*pprefix
;
1821 int require_machine_suffix
;
1824 struct prefix_list
*pl
, **prev
;
1827 if (!first
&& pprefix
->plist
)
1829 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
1834 prev
= &pprefix
->plist
;
1836 /* Keep track of the longest prefix */
1838 len
= strlen (prefix
);
1839 if (len
> pprefix
->max_len
)
1840 pprefix
->max_len
= len
;
1842 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
1843 pl
->prefix
= save_string (prefix
, len
);
1844 pl
->require_machine_suffix
= require_machine_suffix
;
1845 pl
->used_flag_ptr
= warn
;
1852 pl
->next
= (struct prefix_list
*) 0;
1856 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1859 unused_prefix_warnings (pprefix
)
1860 struct path_prefix
*pprefix
;
1862 struct prefix_list
*pl
= pprefix
->plist
;
1866 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
1868 if (pl
->require_machine_suffix
&& machine_suffix
)
1869 error ("file path prefix `%s%s' never used", pl
->prefix
,
1872 error ("file path prefix `%s' never used", pl
->prefix
);
1874 /* Prevent duplicate warnings. */
1875 *pl
->used_flag_ptr
= 1;
1881 /* Get rid of all prefixes built up so far in *PLISTP. */
1884 free_path_prefix (pprefix
)
1885 struct path_prefix
*pprefix
;
1887 struct prefix_list
*pl
= pprefix
->plist
;
1888 struct prefix_list
*temp
;
1894 free (temp
->prefix
);
1895 free ((char *) temp
);
1897 pprefix
->plist
= (struct prefix_list
*) 0;
1900 /* Execute the command specified by the arguments on the current line of spec.
1901 When using pipes, this includes several piped-together commands
1902 with `|' between them.
1904 Return 0 if successful, -1 if failed. */
1910 int n_commands
; /* # of command. */
1914 char *prog
; /* program name. */
1915 char **argv
; /* vector of args. */
1916 int pid
; /* pid of process for this command. */
1919 struct command
*commands
; /* each command buffer with above info. */
1921 /* Count # of piped commands. */
1922 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
1923 if (strcmp (argbuf
[i
], "|") == 0)
1926 /* Get storage for each command. */
1928 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
1930 /* Split argbuf into its separate piped processes,
1931 and record info about each one.
1932 Also search for the programs that are to be run. */
1934 commands
[0].prog
= argbuf
[0]; /* first command. */
1935 commands
[0].argv
= &argbuf
[0];
1936 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
1938 commands
[0].argv
[0] = string
;
1940 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
1941 if (strcmp (argbuf
[i
], "|") == 0)
1942 { /* each command. */
1943 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1944 fatal ("-pipe not supported");
1946 argbuf
[i
] = 0; /* termination of command args. */
1947 commands
[n_commands
].prog
= argbuf
[i
+ 1];
1948 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
1949 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
1951 commands
[n_commands
].argv
[0] = string
;
1955 argbuf
[argbuf_index
] = 0;
1957 /* If -v, print what we are about to do, and maybe query. */
1961 /* Print each piped command as a separate line. */
1962 for (i
= 0; i
< n_commands
; i
++)
1966 for (j
= commands
[i
].argv
; *j
; j
++)
1967 fprintf (stderr
, " %s", *j
);
1969 /* Print a pipe symbol after all but the last command. */
1970 if (i
+ 1 != n_commands
)
1971 fprintf (stderr
, " |");
1972 fprintf (stderr
, "\n");
1976 fprintf (stderr
, "\nGo ahead? (y or n) ");
1980 while (getchar () != '\n') ;
1981 if (i
!= 'y' && i
!= 'Y')
1986 /* Run each piped subprocess. */
1988 for (i
= 0; i
< n_commands
; i
++)
1990 char *errmsg_fmt
, *errmsg_arg
;
1991 char *string
= commands
[i
].argv
[0];
1993 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
1994 programname
, temp_filename
,
1995 &errmsg_fmt
, &errmsg_arg
,
1996 ((i
== 0 ? PEXECUTE_FIRST
: 0)
1997 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
1998 | (string
== commands
[i
].prog
1999 ? PEXECUTE_SEARCH
: 0)
2000 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2002 if (commands
[i
].pid
== -1)
2003 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2005 if (string
!= commands
[i
].prog
)
2011 /* Wait for all the subprocesses to finish.
2012 We don't care what order they finish in;
2013 we know that N_COMMANDS waits will get them all.
2014 Ignore subprocesses that we don't know about,
2015 since they can be spawned by the process that exec'ed us. */
2020 for (i
= 0; i
< n_commands
; )
2026 pid
= pwait (commands
[i
].pid
, &status
, 0);
2030 for (j
= 0; j
< n_commands
; j
++)
2031 if (commands
[j
].pid
== pid
)
2036 if (WIFSIGNALED (status
))
2038 fatal ("Internal compiler error: program %s got fatal signal %d",
2039 commands
[j
].prog
, WTERMSIG (status
));
2043 else if (WIFEXITED (status
)
2044 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2054 /* Find all the switches given to us
2055 and make a vector describing them.
2056 The elements of the vector are strings, one per switch given.
2057 If a switch uses following arguments, then the `part1' field
2058 is the switch itself and the `args' field
2059 is a null-terminated vector containing the following arguments.
2060 The `live_cond' field is 1 if the switch is true in a conditional spec,
2061 -1 if false (overridden by a later switch), and is initialized to zero.
2062 The `valid' field is nonzero if any spec has looked at this switch;
2063 if it remains zero at the end of the run, it must be meaningless. */
2073 static struct switchstr
*switches
;
2075 static int n_switches
;
2083 /* Also a vector of input files specified. */
2085 static struct infile
*infiles
;
2087 static int n_infiles
;
2089 /* And a vector of corresponding output files is made up later. */
2091 static char **outfiles
;
2093 /* Used to track if none of the -B paths are used. */
2096 /* Used to track if standard path isn't used and -b or -V is specified. */
2097 static int warn_std
;
2099 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2100 static int *warn_std_ptr
= 0;
2103 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2105 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2106 is true if we should look for an executable suffix as well. */
2109 convert_filename (name
, do_exe
)
2114 int len
= strlen (name
);
2116 #ifdef HAVE_OBJECT_SUFFIX
2117 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2119 && name
[len
- 2] == '.'
2120 && name
[len
- 1] == 'o')
2122 obstack_grow (&obstack
, name
[i
], len
- 2);
2123 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2124 name
= obstack_finish (&obstack
);
2128 #ifdef HAVE_EXECUTABLE_SUFFIX
2129 /* If there is no filetype, make it the executable suffix (which includes
2130 the "."). But don't get confused if we have just "-o". */
2131 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2134 for (i
= len
- 1; i
>= 0; i
--)
2135 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2138 for (i
++; i
< len
; i
++)
2142 obstack_grow (&obstack
, name
, len
);
2143 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2144 name
= obstack_finish (&obstack
);
2151 /* Create the vector `switches' and its contents.
2152 Store its length in `n_switches'. */
2155 process_command (argc
, argv
)
2161 char *spec_lang
= 0;
2162 int last_language_n_infiles
;
2165 int lang_n_infiles
= 0;
2167 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2172 /* Figure compiler version from version string. */
2174 compiler_version
= save_string (version_string
, strlen (version_string
));
2175 for (temp
= compiler_version
; *temp
; ++temp
)
2184 /* Set up the default search paths. */
2186 if (gcc_exec_prefix
)
2188 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2189 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2192 /* COMPILER_PATH and LIBRARY_PATH have values
2193 that are lists of directory names with colons. */
2195 temp
= getenv ("COMPILER_PATH");
2198 char *startp
, *endp
;
2199 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2201 startp
= endp
= temp
;
2204 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2206 strncpy (nstore
, startp
, endp
-startp
);
2208 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2209 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2211 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2212 nstore
[endp
-startp
+1] = 0;
2215 nstore
[endp
-startp
] = 0;
2216 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2219 endp
= startp
= endp
+ 1;
2226 temp
= getenv ("LIBRARY_PATH");
2227 if (temp
&& ! cross_compile
)
2229 char *startp
, *endp
;
2230 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2232 startp
= endp
= temp
;
2235 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2237 strncpy (nstore
, startp
, endp
-startp
);
2239 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2240 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2242 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2243 nstore
[endp
-startp
+1] = 0;
2246 nstore
[endp
-startp
] = 0;
2247 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2250 endp
= startp
= endp
+ 1;
2257 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2258 temp
= getenv ("LPATH");
2259 if (temp
&& ! cross_compile
)
2261 char *startp
, *endp
;
2262 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2264 startp
= endp
= temp
;
2267 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2269 strncpy (nstore
, startp
, endp
-startp
);
2271 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2272 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2274 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2275 nstore
[endp
-startp
+1] = 0;
2278 nstore
[endp
-startp
] = 0;
2279 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2282 endp
= startp
= endp
+ 1;
2289 /* Convert new-style -- options to old-style. */
2290 translate_options (&argc
, &argv
);
2292 /* Scan argv twice. Here, the first time, just count how many switches
2293 there will be in their vector, and how many input files in theirs.
2294 Here we also parse the switches that cc itself uses (e.g. -v). */
2296 for (i
= 1; i
< argc
; i
++)
2298 if (! strcmp (argv
[i
], "-dumpspecs"))
2300 printf ("*asm:\n%s\n\n", asm_spec
);
2301 printf ("*asm_final:\n%s\n\n", asm_final_spec
);
2302 printf ("*cpp:\n%s\n\n", cpp_spec
);
2303 printf ("*cc1:\n%s\n\n", cc1_spec
);
2304 printf ("*cc1plus:\n%s\n\n", cc1plus_spec
);
2305 printf ("*endfile:\n%s\n\n", endfile_spec
);
2306 printf ("*link:\n%s\n\n", link_spec
);
2307 printf ("*lib:\n%s\n\n", lib_spec
);
2308 printf ("*libgcc:\n%s\n\n", libgcc_spec
);
2309 printf ("*startfile:\n%s\n\n", startfile_spec
);
2310 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces
);
2311 printf ("*signed_char:\n%s\n\n", signed_char_spec
);
2312 printf ("*predefines:\n%s\n\n", cpp_predefines
);
2313 printf ("*cross_compile:\n%d\n\n", cross_compile
);
2314 printf ("*version:\n%s\n\n", compiler_version
);
2315 printf ("*multilib:\n%s\n\n", multilib_select
);
2316 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults
);
2317 printf ("*multilib_extra:\n%s\n\n", multilib_extra
);
2318 printf ("*multilib_matches:\n%s\n\n", multilib_matches
);
2323 for (j
= 0; j
< sizeof (extra_specs
) / sizeof (extra_specs
[0]); j
++)
2324 printf ("*%s:\n%s\n\n", extra_specs
[j
].name
,
2325 (extra_specs
[j
].spec
) ? extra_specs
[j
].spec
: "");
2330 else if (! strcmp (argv
[i
], "-dumpversion"))
2332 printf ("%s\n", version_string
);
2335 else if (! strcmp (argv
[i
], "-dumpmachine"))
2337 printf ("%s\n", spec_machine
);
2340 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2341 print_search_dirs
= 1;
2342 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2343 print_file_name
= "libgcc.a";
2344 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2345 print_file_name
= argv
[i
] + 17;
2346 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2347 print_prog_name
= argv
[i
] + 17;
2348 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2349 print_multi_lib
= 1;
2350 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2351 print_multi_directory
= 1;
2352 else if (! strncmp (argv
[i
], "-Wa,", 4))
2355 /* Pass the rest of this option to the assembler. */
2357 n_assembler_options
++;
2358 if (!assembler_options
)
2360 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2363 = (char **) xrealloc (assembler_options
,
2364 n_assembler_options
* sizeof (char **));
2366 /* Split the argument at commas. */
2368 for (j
= 4; argv
[i
][j
]; j
++)
2369 if (argv
[i
][j
] == ',')
2371 assembler_options
[n_assembler_options
- 1]
2372 = save_string (argv
[i
] + prev
, j
- prev
);
2373 n_assembler_options
++;
2375 = (char **) xrealloc (assembler_options
,
2376 n_assembler_options
* sizeof (char **));
2379 /* Record the part after the last comma. */
2380 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2382 else if (! strncmp (argv
[i
], "-Wp,", 4))
2385 /* Pass the rest of this option to the preprocessor. */
2387 n_preprocessor_options
++;
2388 if (!preprocessor_options
)
2389 preprocessor_options
2390 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2392 preprocessor_options
2393 = (char **) xrealloc (preprocessor_options
,
2394 n_preprocessor_options
* sizeof (char **));
2396 /* Split the argument at commas. */
2398 for (j
= 4; argv
[i
][j
]; j
++)
2399 if (argv
[i
][j
] == ',')
2401 preprocessor_options
[n_preprocessor_options
- 1]
2402 = save_string (argv
[i
] + prev
, j
- prev
);
2403 n_preprocessor_options
++;
2404 preprocessor_options
2405 = (char **) xrealloc (preprocessor_options
,
2406 n_preprocessor_options
* sizeof (char **));
2409 /* Record the part after the last comma. */
2410 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2412 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2413 /* The +e options to the C++ front-end. */
2415 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2418 /* Split the argument at commas. */
2419 for (j
= 3; argv
[i
][j
]; j
++)
2420 n_infiles
+= (argv
[i
][j
] == ',');
2422 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2425 fatal ("argument to `-Xlinker' is missing");
2430 else if (strncmp (argv
[i
], "-l", 2) == 0)
2432 else if (strcmp (argv
[i
], "-save-temps") == 0)
2434 save_temps_flag
= 1;
2437 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2439 register char *p
= &argv
[i
][1];
2440 register int c
= *p
;
2445 if (p
[1] == 0 && i
+ 1 == argc
)
2446 fatal ("argument to `-b' is missing");
2448 spec_machine
= argv
[++i
];
2450 spec_machine
= p
+ 1;
2452 warn_std_ptr
= &warn_std
;
2457 int *temp
= (int *) xmalloc (sizeof (int));
2459 if (p
[1] == 0 && i
+ 1 == argc
)
2460 fatal ("argument to `-B' is missing");
2465 add_prefix (&exec_prefixes
, value
, 1, 0, &warn_B
);
2466 add_prefix (&startfile_prefixes
, value
, 1, 0, &warn_B
);
2467 add_prefix (&include_prefixes
, concat (value
, "include", NULL_PTR
),
2470 /* As a kludge, if the arg is "[foo/]stageN/", just add
2471 "[foo/]include" to the include prefix. */
2473 int len
= strlen (value
);
2476 && (value
[len
- 8] == '/'
2477 || value
[len
- 8] == DIR_SEPARATOR
)))
2478 && strncmp (value
+ len
- 7, "stage", 5) == 0
2479 && isdigit (value
[len
- 2])
2480 && (value
[len
- 1] == '/'
2481 || value
[len
- 1] == DIR_SEPARATOR
))
2484 add_prefix (&include_prefixes
, "include",
2488 char *string
= xmalloc (len
+ 1);
2489 strncpy (string
, value
, len
-7);
2490 strcat (string
, "include");
2491 add_prefix (&include_prefixes
, string
,
2499 case 'v': /* Print our subcommands and print versions. */
2501 /* If they do anything other than exactly `-v', don't set
2502 verbose_flag; rather, continue on to give the error. */
2509 if (p
[1] == 0 && i
+ 1 == argc
)
2510 fatal ("argument to `-V' is missing");
2512 spec_version
= argv
[++i
];
2514 spec_version
= p
+ 1;
2515 compiler_version
= spec_version
;
2516 warn_std_ptr
= &warn_std
;
2530 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2531 argv
[i
] = convert_filename (argv
[i
], 1);
2533 argv
[i
+1] = convert_filename (argv
[i
+1], 1);
2541 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2542 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2543 else if (WORD_SWITCH_TAKES_ARG (p
))
2544 i
+= WORD_SWITCH_TAKES_ARG (p
);
2554 if (have_c
&& have_o
&& lang_n_infiles
> 1)
2555 fatal ("cannot specify -o with -c and multiple compilations");
2557 /* Set up the search paths before we go looking for config files. */
2559 /* These come before the md prefixes so that we will find gcc's subcommands
2560 (such as cpp) rather than those of the host system. */
2561 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2562 as well as trying the machine and the version. */
2564 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, warn_std_ptr
);
2565 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, warn_std_ptr
);
2568 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, warn_std_ptr
);
2569 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, warn_std_ptr
);
2571 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
2572 dir_separator_str
, NULL_PTR
);
2574 /* If tooldir is relative, base it on exec_prefixes. A relative
2575 tooldir lets us move the installed tree as a unit.
2577 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2578 directories, so that we can search both the user specified directory
2579 and the standard place. */
2581 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2583 if (gcc_exec_prefix
)
2585 char *gcc_exec_tooldir_prefix
2586 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2587 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2589 add_prefix (&exec_prefixes
,
2590 concat (gcc_exec_tooldir_prefix
, "bin",
2591 dir_separator_str
, NULL_PTR
),
2593 add_prefix (&startfile_prefixes
,
2594 concat (gcc_exec_tooldir_prefix
, "lib",
2595 dir_separator_str
, NULL_PTR
),
2599 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
2600 dir_separator_str
, spec_version
,
2601 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2604 add_prefix (&exec_prefixes
,
2605 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
2607 add_prefix (&startfile_prefixes
,
2608 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
2611 /* More prefixes are enabled in main, after we read the specs file
2612 and determine whether this is cross-compilation or not. */
2615 /* Then create the space for the vectors and scan again. */
2617 switches
= ((struct switchstr
*)
2618 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2619 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2622 last_language_n_infiles
= -1;
2624 /* This, time, copy the text of each switch and store a pointer
2625 to the copy in the vector of switches.
2626 Store all the infiles in their vector. */
2628 for (i
= 1; i
< argc
; i
++)
2630 /* Just skip the switches that were handled by the preceding loop. */
2631 if (! strncmp (argv
[i
], "-Wa,", 4))
2633 else if (! strncmp (argv
[i
], "-Wp,", 4))
2635 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2637 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2639 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2641 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2643 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2645 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2647 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2649 /* Compensate for the +e options to the C++ front-end;
2650 they're there simply for cfront call-compatibility. We do
2651 some magic in default_compilers to pass them down properly.
2652 Note we deliberately start at the `+' here, to avoid passing
2653 -e0 or -e1 down into the linker. */
2654 switches
[n_switches
].part1
= &argv
[i
][0];
2655 switches
[n_switches
].args
= 0;
2656 switches
[n_switches
].live_cond
= 0;
2657 switches
[n_switches
].valid
= 0;
2660 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2663 /* Split the argument at commas. */
2665 for (j
= 4; argv
[i
][j
]; j
++)
2666 if (argv
[i
][j
] == ',')
2668 infiles
[n_infiles
].language
= 0;
2669 infiles
[n_infiles
++].name
2670 = save_string (argv
[i
] + prev
, j
- prev
);
2673 /* Record the part after the last comma. */
2674 infiles
[n_infiles
].language
= 0;
2675 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2677 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2679 infiles
[n_infiles
].language
= 0;
2680 infiles
[n_infiles
++].name
= argv
[++i
];
2682 else if (strncmp (argv
[i
], "-l", 2) == 0)
2684 infiles
[n_infiles
].language
= 0;
2685 infiles
[n_infiles
++].name
= argv
[i
];
2687 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2689 register char *p
= &argv
[i
][1];
2690 register int c
= *p
;
2692 if (c
== 'B' || c
== 'b' || c
== 'V')
2694 /* Skip a separate arg, if any. */
2701 if (p
[1] == 0 && i
+ 1 == argc
)
2702 fatal ("argument to `-x' is missing");
2704 spec_lang
= argv
[++i
];
2707 if (! strcmp (spec_lang
, "none"))
2708 /* Suppress the warning if -xnone comes after the last input
2709 file, because alternate command interfaces like g++ might
2710 find it useful to place -xnone after each input file. */
2713 last_language_n_infiles
= n_infiles
;
2716 switches
[n_switches
].part1
= p
;
2717 /* Deal with option arguments in separate argv elements. */
2718 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2719 || WORD_SWITCH_TAKES_ARG (p
))
2722 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2726 /* Count only the option arguments in separate argv elements. */
2727 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2729 if (i
+ n_args
>= argc
)
2730 fatal ("argument to `-%s' is missing", p
);
2731 switches
[n_switches
].args
2732 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2734 switches
[n_switches
].args
[j
++] = argv
[++i
];
2735 /* Null-terminate the vector. */
2736 switches
[n_switches
].args
[j
] = 0;
2738 else if (index (switches_need_spaces
, c
))
2740 /* On some systems, ld cannot handle some options without
2741 a space. So split the option from its argument. */
2742 char *part1
= (char *) xmalloc (2);
2746 switches
[n_switches
].part1
= part1
;
2747 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2748 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2749 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2750 switches
[n_switches
].args
[1] = 0;
2753 switches
[n_switches
].args
= 0;
2755 switches
[n_switches
].live_cond
= 0;
2756 switches
[n_switches
].valid
= 0;
2757 /* This is always valid, since gcc.c itself understands it. */
2758 if (!strcmp (p
, "save-temps"))
2759 switches
[n_switches
].valid
= 1;
2764 #ifdef HAVE_OBJECT_SUFFIX
2765 argv
[i
] = convert_filename (argv
[i
], 0);
2768 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
2770 perror_with_name (argv
[i
]);
2775 infiles
[n_infiles
].language
= spec_lang
;
2776 infiles
[n_infiles
++].name
= argv
[i
];
2781 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2782 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2784 switches
[n_switches
].part1
= 0;
2785 infiles
[n_infiles
].name
= 0;
2788 /* Process a spec string, accumulating and running commands. */
2790 /* These variables describe the input file name.
2791 input_file_number is the index on outfiles of this file,
2792 so that the output file name can be stored for later use by %o.
2793 input_basename is the start of the part of the input file
2794 sans all directory names, and basename_length is the number
2795 of characters starting there excluding the suffix .c or whatever. */
2797 static char *input_filename
;
2798 static int input_file_number
;
2799 static int input_filename_length
;
2800 static int basename_length
;
2801 static char *input_basename
;
2802 static char *input_suffix
;
2804 /* These are variables used within do_spec and do_spec_1. */
2806 /* Nonzero if an arg has been started and not yet terminated
2807 (with space, tab or newline). */
2808 static int arg_going
;
2810 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2811 is a temporary file name. */
2812 static int delete_this_arg
;
2814 /* Nonzero means %w has been seen; the next arg to be terminated
2815 is the output file name of this compilation. */
2816 static int this_is_output_file
;
2818 /* Nonzero means %s has been seen; the next arg to be terminated
2819 is the name of a library file and we should try the standard
2820 search dirs for it. */
2821 static int this_is_library_file
;
2823 /* Nonzero means that the input of this command is coming from a pipe. */
2824 static int input_from_pipe
;
2826 /* Process the spec SPEC and run the commands specified therein.
2827 Returns 0 if the spec is successfully processed; -1 if failed. */
2837 delete_this_arg
= 0;
2838 this_is_output_file
= 0;
2839 this_is_library_file
= 0;
2840 input_from_pipe
= 0;
2842 value
= do_spec_1 (spec
, 0, NULL_PTR
);
2844 /* Force out any unfinished command.
2845 If -pipe, this forces out the last command if it ended in `|'. */
2848 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2851 if (argbuf_index
> 0)
2858 /* Process the sub-spec SPEC as a portion of a larger spec.
2859 This is like processing a whole spec except that we do
2860 not initialize at the beginning and we do not supply a
2861 newline by default at the end.
2862 INSWITCH nonzero means don't process %-sequences in SPEC;
2863 in this case, % is treated as an ordinary character.
2864 This is used while substituting switches.
2865 INSWITCH nonzero also causes SPC not to terminate an argument.
2867 Value is zero unless a line was finished
2868 and the command on that line reported an error. */
2871 do_spec_1 (spec
, inswitch
, soft_matched_part
)
2874 char *soft_matched_part
;
2876 register char *p
= spec
;
2883 /* If substituting a switch, treat all chars like letters.
2884 Otherwise, NL, SPC, TAB and % are special. */
2885 switch (inswitch
? 'a' : c
)
2888 /* End of line: finish any pending argument,
2889 then run the pending command if one has been started. */
2892 obstack_1grow (&obstack
, 0);
2893 string
= obstack_finish (&obstack
);
2894 if (this_is_library_file
)
2895 string
= find_file (string
);
2896 store_arg (string
, delete_this_arg
, this_is_output_file
);
2897 if (this_is_output_file
)
2898 outfiles
[input_file_number
] = string
;
2902 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
2904 for (i
= 0; i
< n_switches
; i
++)
2905 if (!strcmp (switches
[i
].part1
, "pipe"))
2908 /* A `|' before the newline means use a pipe here,
2909 but only if -pipe was specified.
2910 Otherwise, execute now and don't pass the `|' as an arg. */
2913 input_from_pipe
= 1;
2914 switches
[i
].valid
= 1;
2921 if (argbuf_index
> 0)
2927 /* Reinitialize for a new command, and for a new argument. */
2930 delete_this_arg
= 0;
2931 this_is_output_file
= 0;
2932 this_is_library_file
= 0;
2933 input_from_pipe
= 0;
2937 /* End any pending argument. */
2940 obstack_1grow (&obstack
, 0);
2941 string
= obstack_finish (&obstack
);
2942 if (this_is_library_file
)
2943 string
= find_file (string
);
2944 store_arg (string
, delete_this_arg
, this_is_output_file
);
2945 if (this_is_output_file
)
2946 outfiles
[input_file_number
] = string
;
2950 obstack_1grow (&obstack
, c
);
2956 /* Space or tab ends an argument if one is pending. */
2959 obstack_1grow (&obstack
, 0);
2960 string
= obstack_finish (&obstack
);
2961 if (this_is_library_file
)
2962 string
= find_file (string
);
2963 store_arg (string
, delete_this_arg
, this_is_output_file
);
2964 if (this_is_output_file
)
2965 outfiles
[input_file_number
] = string
;
2967 /* Reinitialize for a new argument. */
2969 delete_this_arg
= 0;
2970 this_is_output_file
= 0;
2971 this_is_library_file
= 0;
2978 fatal ("Invalid specification! Bug in cc.");
2981 obstack_grow (&obstack
, input_basename
, basename_length
);
2986 delete_this_arg
= 2;
2989 /* Dump out the directories specified with LIBRARY_PATH,
2990 followed by the absolute directories
2991 that we search for startfiles. */
2994 struct prefix_list
*pl
= startfile_prefixes
.plist
;
2996 char *buffer
= (char *) xmalloc (bufsize
);
2999 for (; pl
; pl
= pl
->next
)
3001 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3002 /* Used on systems which record the specified -L dirs
3003 and use them to search for dynamic linking. */
3004 /* Relative directories always come from -B,
3005 and it is better not to use them for searching
3006 at run time. In particular, stage1 loses */
3007 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3010 /* Try subdirectory if there is one. */
3011 if (multilib_dir
!= NULL
)
3015 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3017 bufsize
= (strlen (pl
->prefix
)
3018 + strlen (machine_suffix
)) * 2 + 1;
3019 buffer
= (char *) xrealloc (buffer
, bufsize
);
3020 strcpy (buffer
, pl
->prefix
);
3021 strcat (buffer
, machine_suffix
);
3022 if (is_directory (buffer
, multilib_dir
, 1))
3024 do_spec_1 ("-L", 0, NULL_PTR
);
3025 #ifdef SPACE_AFTER_L_OPTION
3026 do_spec_1 (" ", 0, NULL_PTR
);
3028 do_spec_1 (buffer
, 1, NULL_PTR
);
3029 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3030 /* Make this a separate argument. */
3031 do_spec_1 (" ", 0, NULL_PTR
);
3034 if (!pl
->require_machine_suffix
)
3036 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3038 do_spec_1 ("-L", 0, NULL_PTR
);
3039 #ifdef SPACE_AFTER_L_OPTION
3040 do_spec_1 (" ", 0, NULL_PTR
);
3042 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3043 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3044 /* Make this a separate argument. */
3045 do_spec_1 (" ", 0, NULL_PTR
);
3051 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3053 do_spec_1 ("-L", 0, NULL_PTR
);
3054 #ifdef SPACE_AFTER_L_OPTION
3055 do_spec_1 (" ", 0, NULL_PTR
);
3057 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3058 /* Remove slash from machine_suffix. */
3059 if (strlen (machine_suffix
) >= bufsize
)
3060 bufsize
= strlen (machine_suffix
) * 2 + 1;
3061 buffer
= (char *) xrealloc (buffer
, bufsize
);
3062 strcpy (buffer
, machine_suffix
);
3063 idx
= strlen (buffer
);
3064 if (buffer
[idx
- 1] == '/'
3065 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3066 buffer
[idx
- 1] = 0;
3067 do_spec_1 (buffer
, 1, NULL_PTR
);
3068 /* Make this a separate argument. */
3069 do_spec_1 (" ", 0, NULL_PTR
);
3072 if (!pl
->require_machine_suffix
)
3074 if (is_directory (pl
->prefix
, "", 1))
3076 do_spec_1 ("-L", 0, NULL_PTR
);
3077 #ifdef SPACE_AFTER_L_OPTION
3078 do_spec_1 (" ", 0, NULL_PTR
);
3080 /* Remove slash from pl->prefix. */
3081 if (strlen (pl
->prefix
) >= bufsize
)
3082 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3083 buffer
= (char *) xrealloc (buffer
, bufsize
);
3084 strcpy (buffer
, pl
->prefix
);
3085 idx
= strlen (buffer
);
3086 if (buffer
[idx
- 1] == '/'
3087 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3088 buffer
[idx
- 1] = 0;
3089 do_spec_1 (buffer
, 1, NULL_PTR
);
3090 /* Make this a separate argument. */
3091 do_spec_1 (" ", 0, NULL_PTR
);
3100 /* {...:%efoo} means report an error with `foo' as error message
3101 and don't execute any more commands for this file. */
3105 while (*p
!= 0 && *p
!= '\n') p
++;
3106 buf
= (char *) alloca (p
- q
+ 1);
3107 strncpy (buf
, q
, p
- q
);
3117 if (save_temps_flag
)
3119 obstack_grow (&obstack
, input_basename
, basename_length
);
3120 delete_this_arg
= 0;
3124 #ifdef MKTEMP_EACH_FILE
3125 /* ??? This has a problem: the total number of
3126 values mktemp can return is limited.
3127 That matters for the names of object files.
3128 In 2.4, do something about that. */
3129 struct temp_name
*t
;
3131 while (*p
== '.' || isalpha (*p
)
3132 || (p
[0] == '%' && p
[1] == 'O'))
3135 /* See if we already have an association of %g/%u/%U and
3137 for (t
= temp_names
; t
; t
= t
->next
)
3138 if (t
->length
== p
- suffix
3139 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3140 && t
->unique
== (c
!= 'g'))
3143 /* Make a new association if needed. %u requires one. */
3144 if (t
== 0 || c
== 'u')
3148 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3149 t
->next
= temp_names
;
3152 t
->length
= p
- suffix
;
3153 t
->suffix
= save_string (suffix
, p
- suffix
);
3154 t
->unique
= (c
!= 'g');
3155 temp_filename
= choose_temp_base ();
3156 temp_filename_length
= strlen (temp_filename
);
3157 t
->filename
= temp_filename
;
3158 t
->filename_length
= temp_filename_length
;
3161 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3162 delete_this_arg
= 1;
3164 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3165 if (c
== 'u' || c
== 'U')
3171 sprintf (buff
, "%d", unique
);
3172 obstack_grow (&obstack
, buff
, strlen (buff
));
3175 delete_this_arg
= 1;
3181 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3187 struct prefix_list
*pl
= include_prefixes
.plist
;
3189 if (gcc_exec_prefix
)
3191 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3192 /* Make this a separate argument. */
3193 do_spec_1 (" ", 0, NULL_PTR
);
3194 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3195 do_spec_1 (" ", 0, NULL_PTR
);
3198 for (; pl
; pl
= pl
->next
)
3200 do_spec_1 ("-isystem", 1, NULL_PTR
);
3201 /* Make this a separate argument. */
3202 do_spec_1 (" ", 0, NULL_PTR
);
3203 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3204 do_spec_1 (" ", 0, NULL_PTR
);
3210 for (i
= 0; i
< n_infiles
; i
++)
3211 store_arg (outfiles
[i
], 0, 0);
3215 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3220 this_is_library_file
= 1;
3224 this_is_output_file
= 1;
3229 int cur_index
= argbuf_index
;
3230 /* Handle the {...} following the %W. */
3233 p
= handle_braces (p
+ 1);
3236 /* If any args were output, mark the last one for deletion
3238 if (argbuf_index
!= cur_index
)
3239 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3243 /* %x{OPTION} records OPTION for %X to output. */
3249 /* Skip past the option value and make a copy. */
3254 string
= save_string (p1
+ 1, p
- p1
- 2);
3256 /* See if we already recorded this option. */
3257 for (i
= 0; i
< n_linker_options
; i
++)
3258 if (! strcmp (string
, linker_options
[i
]))
3264 /* This option is new; add it. */
3266 if (!linker_options
)
3268 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3271 = (char **) xrealloc (linker_options
,
3272 n_linker_options
* sizeof (char **));
3274 linker_options
[n_linker_options
- 1] = string
;
3278 /* Dump out the options accumulated previously using %x. */
3280 for (i
= 0; i
< n_linker_options
; i
++)
3282 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3283 /* Make each accumulated option a separate argument. */
3284 do_spec_1 (" ", 0, NULL_PTR
);
3288 /* Dump out the options accumulated previously using -Wa,. */
3290 for (i
= 0; i
< n_assembler_options
; i
++)
3292 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3293 /* Make each accumulated option a separate argument. */
3294 do_spec_1 (" ", 0, NULL_PTR
);
3298 /* Dump out the options accumulated previously using -Wp,. */
3300 for (i
= 0; i
< n_preprocessor_options
; i
++)
3302 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3303 /* Make each accumulated option a separate argument. */
3304 do_spec_1 (" ", 0, NULL_PTR
);
3308 /* Here are digits and numbers that just process
3309 a certain constant string as a spec. */
3312 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3318 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3324 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3330 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3336 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3342 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3348 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3354 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3360 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3366 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3373 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3377 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3381 if (! strncmp (y
, "-D", 2))
3382 /* Copy the whole option. */
3383 while (*y
&& *y
!= ' ' && *y
!= '\t')
3385 else if (*y
== ' ' || *y
== '\t')
3386 /* Copy whitespace to the result. */
3388 /* Don't copy other options. */
3395 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3403 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3407 /* Copy all of CPP_PREDEFINES into BUF,
3408 but put __ after every -D and at the end of each arg. */
3412 if (! strncmp (y
, "-D", 2))
3420 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3422 /* Stick __ at front of macro name. */
3425 /* Arrange to stick __ at the end as well. */
3429 /* Copy the macro name. */
3430 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3439 /* Copy the value given, if any. */
3440 while (*y
&& *y
!= ' ' && *y
!= '\t')
3443 else if (*y
== ' ' || *y
== '\t')
3444 /* Copy whitespace to the result. */
3446 /* Don't copy -A options */
3452 /* Copy all of CPP_PREDEFINES into BUF,
3453 but put __ after every -D. */
3457 if (! strncmp (y
, "-D", 2))
3462 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3464 /* Stick -D__ at front of macro name. */
3470 /* Copy the macro name. */
3471 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3474 /* Copy the value given, if any. */
3475 while (*y
&& *y
!= ' ' && *y
!= '\t')
3480 /* Do not copy this macro - we have just done it before */
3481 while (*y
&& *y
!= ' ' && *y
!= '\t')
3485 else if (*y
== ' ' || *y
== '\t')
3486 /* Copy whitespace to the result. */
3488 /* Don't copy -A options */
3494 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3498 if (! strncmp (y
, "-A", 2))
3499 /* Copy the whole option. */
3500 while (*y
&& *y
!= ' ' && *y
!= '\t')
3502 else if (*y
== ' ' || *y
== '\t')
3503 /* Copy whitespace to the result. */
3505 /* Don't copy other options. */
3512 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3519 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3524 /* Here we define characters other than letters and digits. */
3527 p
= handle_braces (p
);
3533 obstack_1grow (&obstack
, '%');
3537 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3538 do_spec_1 (" ", 0, NULL_PTR
);
3541 /* Process a string found as the value of a spec given by name.
3542 This feature allows individual machine descriptions
3543 to add and use their own specs.
3544 %[...] modifies -D options the way %P does;
3545 %(...) uses the spec unmodified. */
3550 struct spec_list
*sl
;
3553 /* The string after the S/P is the name of a spec that is to be
3555 while (*p
&& *p
!= ')' && *p
!= ']')
3558 /* See if it's in the list */
3559 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3560 if (strncmp (sl
->name
, name
, len
) == 0 && !sl
->name
[len
])
3570 value
= do_spec_1 (name
, 0, NULL_PTR
);
3576 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3580 /* Copy all of NAME into BUF, but put __ after
3581 every -D and at the end of each arg, */
3584 if (! strncmp (y
, "-D", 2))
3592 else if (*y
== ' ' || *y
== 0)
3606 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3612 /* Discard the closing paren or bracket. */
3620 int c1
= *p
++; /* Select first or second version number. */
3621 char *v
= compiler_version
;
3624 /* The format of the version string is
3625 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3627 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3628 while (! isdigit (*v
))
3630 if (v
> compiler_version
&& v
[-1] != '-')
3633 /* If desired, advance to second version number. */
3636 /* Set V after the first period. */
3637 while (isdigit (*v
))
3644 /* Set Q at the next period or at the end. */
3646 while (isdigit (*q
))
3648 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
3651 /* Put that part into the command. */
3652 obstack_grow (&obstack
, v
, q
- v
);
3658 if (input_from_pipe
)
3659 do_spec_1 ("-", 0, NULL_PTR
);
3668 /* Backslash: treat next character as ordinary. */
3673 /* Ordinary character: put it into the current argument. */
3674 obstack_1grow (&obstack
, c
);
3678 return 0; /* End of string */
3681 /* Return 0 if we call do_spec_1 and that returns -1. */
3694 /* A `|' after the open-brace means,
3695 if the test fails, output a single minus sign rather than nothing.
3696 This is used in %{|!pipe:...}. */
3700 /* A `!' after the open-brace negates the condition:
3701 succeed if the specified switch is not present. */
3705 /* A `.' after the open-brace means test against the current suffix. */
3715 while (*p
!= ':' && *p
!= '}') p
++;
3718 register int count
= 1;
3736 int found
= (input_suffix
!= 0
3737 && strlen (input_suffix
) == p
- filter
3738 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3744 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3749 else if (p
[-1] == '*' && p
[0] == '}')
3751 /* Substitute all matching switches as separate args. */
3754 for (i
= 0; i
< n_switches
; i
++)
3755 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3756 && check_live_switch (i
, p
- filter
))
3761 /* Test for presence of the specified switch. */
3765 /* If name specified ends in *, as in {x*:...},
3766 check for %* and handle that case. */
3767 if (p
[-1] == '*' && !negate
)
3772 /* First see whether we have %*. */
3776 if (*r
== '%' && r
[1] == '*')
3780 /* If we do, handle that case. */
3783 /* Substitute all matching switches as separate args.
3784 But do this by substituting for %*
3785 in the text that follows the colon. */
3787 unsigned hard_match_len
= p
- filter
- 1;
3788 char *string
= save_string (p
+ 1, q
- p
- 2);
3790 for (i
= 0; i
< n_switches
; i
++)
3791 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3792 && check_live_switch (i
, -1))
3794 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
3795 /* Pass any arguments this switch has. */
3803 /* If name specified ends in *, as in {x*:...},
3804 check for presence of any switch name starting with x. */
3807 for (i
= 0; i
< n_switches
; i
++)
3809 unsigned hard_match_len
= p
- filter
- 1;
3811 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
3812 && check_live_switch (i
, hard_match_len
))
3818 /* Otherwise, check for presence of exact name specified. */
3821 for (i
= 0; i
< n_switches
; i
++)
3823 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3824 && switches
[i
].part1
[p
- filter
] == 0
3825 && check_live_switch (i
, -1))
3833 /* If it is as desired (present for %{s...}, absent for %{-s...})
3834 then substitute either the switch or the specified
3835 conditional text. */
3836 if (present
!= negate
)
3844 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3850 /* Here if a %{|...} conditional fails: output a minus sign,
3851 which means "standard output" or "standard input". */
3852 do_spec_1 ("-", 0, NULL_PTR
);
3859 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3860 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3861 spec, or -1 if either exact match or %* is used.
3863 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3864 whose value does not begin with "no-" is obsoleted by the same value
3865 with the "no-", similarly for a switch with the "no-" prefix. */
3868 check_live_switch (switchnum
, prefix_length
)
3872 char *name
= switches
[switchnum
].part1
;
3875 /* In the common case of {<at-most-one-letter>*}, a negating
3876 switch would always match, so ignore that case. We will just
3877 send the conflicting switches to the compiler phase. */
3878 if (prefix_length
>= 0 && prefix_length
<= 1)
3881 /* If we already processed this switch and determined if it was
3882 live or not, return our past determination. */
3883 if (switches
[switchnum
].live_cond
!= 0)
3884 return switches
[switchnum
].live_cond
> 0;
3886 /* Now search for duplicate in a manner that depends on the name. */
3890 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3891 if (switches
[i
].part1
[0] == 'O')
3893 switches
[switchnum
].valid
= 1;
3894 switches
[switchnum
].live_cond
= -1;
3899 case 'W': case 'f': case 'm':
3900 if (! strncmp (name
+ 1, "no-", 3))
3902 /* We have Xno-YYY, search for XYYY. */
3903 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3904 if (switches
[i
].part1
[0] == name
[0]
3905 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
3907 switches
[switchnum
].valid
= 1;
3908 switches
[switchnum
].live_cond
= -1;
3914 /* We have XYYY, search for Xno-YYY. */
3915 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
3916 if (switches
[i
].part1
[0] == name
[0]
3917 && switches
[i
].part1
[1] == 'n'
3918 && switches
[i
].part1
[2] == 'o'
3919 && switches
[i
].part1
[3] == '-'
3920 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
3922 switches
[switchnum
].valid
= 1;
3923 switches
[switchnum
].live_cond
= -1;
3930 /* Otherwise the switch is live. */
3931 switches
[switchnum
].live_cond
= 1;
3935 /* Pass a switch to the current accumulating command
3936 in the same form that we received it.
3937 SWITCHNUM identifies the switch; it is an index into
3938 the vector of switches gcc received, which is `switches'.
3939 This cannot fail since it never finishes a command line.
3941 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3944 give_switch (switchnum
, omit_first_word
)
3946 int omit_first_word
;
3948 if (!omit_first_word
)
3950 do_spec_1 ("-", 0, NULL_PTR
);
3951 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
3953 do_spec_1 (" ", 0, NULL_PTR
);
3954 if (switches
[switchnum
].args
!= 0)
3957 for (p
= switches
[switchnum
].args
; *p
; p
++)
3959 do_spec_1 (*p
, 1, NULL_PTR
);
3960 do_spec_1 (" ", 0, NULL_PTR
);
3963 switches
[switchnum
].valid
= 1;
3966 /* Search for a file named NAME trying various prefixes including the
3967 user's -B prefix and some standard ones.
3968 Return the absolute file name found. If nothing is found, return NAME. */
3976 /* Try multilib_dir if it is defined. */
3977 if (multilib_dir
!= NULL
)
3981 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
3982 strcpy (try, multilib_dir
);
3983 strcat (try, dir_separator_str
);
3986 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
3988 /* If we don't find it in the multi library dir, then fall
3989 through and look for it in the normal places. */
3990 if (newname
!= NULL
)
3994 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
3995 return newname
? newname
: name
;
3998 /* Determine whether a directory exists. If LINKER, return 0 for
3999 certain fixed names not needed by the linker. If not LINKER, it is
4000 only important to return 0 if the host machine has a small ARG_MAX
4004 is_directory (path1
, path2
, linker
)
4009 int len1
= strlen (path1
);
4010 int len2
= strlen (path2
);
4011 char *path
= (char *) alloca (3 + len1
+ len2
);
4015 #ifndef SMALL_ARG_MAX
4020 /* Construct the path from the two parts. Ensure the string ends with "/.".
4021 The resulting path will be a directory even if the given path is a
4023 bcopy (path1
, path
, len1
);
4024 bcopy (path2
, path
+ len1
, len2
);
4025 cp
= path
+ len1
+ len2
;
4026 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4027 *cp
++ = DIR_SEPARATOR
;
4031 /* Exclude directories that the linker is known to search. */
4034 && strcmp (path
, concat (dir_separator_str
, "lib",
4035 dir_separator_str
, ".", NULL_PTR
)) == 0)
4037 && strcmp (path
, concat (dir_separator_str
, "usr",
4038 dir_separator_str
, "lib",
4039 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4042 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4045 /* On fatal signals, delete all the temporary files. */
4048 fatal_error (signum
)
4051 signal (signum
, SIG_DFL
);
4052 delete_failure_queue ();
4053 delete_temp_files ();
4054 /* Get the same signal again, this time not handled,
4055 so its normal effect occurs. */
4056 kill (getpid (), signum
);
4067 int linker_was_run
= 0;
4068 char *explicit_link_files
;
4072 p
= argv
[0] + strlen (argv
[0]);
4073 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4076 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4077 signal (SIGINT
, fatal_error
);
4079 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4080 signal (SIGHUP
, fatal_error
);
4082 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4083 signal (SIGTERM
, fatal_error
);
4085 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4086 signal (SIGPIPE
, fatal_error
);
4090 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4092 obstack_init (&obstack
);
4094 /* Build multilib_select, et. al from the separate lines that make up each
4095 multilib selection. */
4097 char **q
= multilib_raw
;
4100 obstack_init (&multilib_obstack
);
4101 while ((p
= *q
++) != (char *) 0)
4102 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4104 obstack_1grow (&multilib_obstack
, 0);
4105 multilib_select
= obstack_finish (&multilib_obstack
);
4107 q
= multilib_matches_raw
;
4108 while ((p
= *q
++) != (char *) 0)
4109 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4111 obstack_1grow (&multilib_obstack
, 0);
4112 multilib_matches
= obstack_finish (&multilib_obstack
);
4116 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4120 obstack_1grow (&multilib_obstack
, ' ');
4121 obstack_grow (&multilib_obstack
,
4122 multilib_defaults_raw
[i
],
4123 strlen (multilib_defaults_raw
[i
]));
4127 obstack_1grow (&multilib_obstack
, 0);
4128 multilib_defaults
= obstack_finish (&multilib_obstack
);
4131 /* Set up to remember the pathname of gcc and any options
4132 needed for collect. We use argv[0] instead of programname because
4133 we need the complete pathname. */
4134 obstack_init (&collect_obstack
);
4135 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4136 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4137 putenv (obstack_finish (&collect_obstack
));
4139 #ifdef INIT_ENVIRONMENT
4140 /* Set up any other necessary machine specific environment variables. */
4141 putenv (INIT_ENVIRONMENT
);
4144 /* Choose directory for temp files. */
4146 temp_filename
= choose_temp_base ();
4147 temp_filename_length
= strlen (temp_filename
);
4149 /* Make a table of what switches there are (switches, n_switches).
4150 Make a table of specified input files (infiles, n_infiles).
4151 Decode switches that are handled locally. */
4153 process_command (argc
, argv
);
4155 /* Initialize the vector of specs to just the default.
4156 This means one element containing 0s, as a terminator. */
4158 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4159 bcopy ((char *) default_compilers
, (char *) compilers
,
4160 sizeof default_compilers
);
4161 n_compilers
= n_default_compilers
;
4163 /* Read specs from a file if there is one. */
4165 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4166 spec_version
, dir_separator_str
, NULL_PTR
);
4167 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4169 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4170 /* Read the specs file unless it is a default one. */
4171 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4172 read_specs (specs_file
);
4178 for (k
= 0; k
< sizeof (extra_specs
) / sizeof (extra_specs
[0]); k
++)
4179 set_spec (extra_specs
[k
].name
, extra_specs
[k
].spec
);
4183 /* If not cross-compiling, look for startfiles in the standard places. */
4184 /* The fact that these are done here, after reading the specs file,
4185 means that it cannot be found in these directories.
4186 But that's okay. It should never be there anyway. */
4189 #ifdef MD_EXEC_PREFIX
4190 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4191 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4194 #ifdef MD_STARTFILE_PREFIX
4195 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4198 #ifdef MD_STARTFILE_PREFIX_1
4199 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4202 /* If standard_startfile_prefix is relative, base it on
4203 standard_exec_prefix. This lets us move the installed tree
4204 as a unit. If GCC_EXEC_PREFIX is defined, base
4205 standard_startfile_prefix on that as well. */
4206 if (*standard_startfile_prefix
== '/'
4207 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4208 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4212 if (gcc_exec_prefix
)
4213 add_prefix (&startfile_prefixes
,
4214 concat (gcc_exec_prefix
, machine_suffix
,
4215 standard_startfile_prefix
, NULL_PTR
),
4217 add_prefix (&startfile_prefixes
,
4218 concat (standard_exec_prefix
,
4220 standard_startfile_prefix
, NULL_PTR
),
4224 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4226 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4228 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4229 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4234 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4235 add_prefix (&startfile_prefixes
,
4236 concat (gcc_exec_prefix
, machine_suffix
,
4237 standard_startfile_prefix
, NULL_PTR
),
4241 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4242 if (gcc_exec_prefix
)
4244 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4245 + strlen (spec_version
)
4246 + strlen (spec_machine
) + 3);
4247 strcpy (temp
, gcc_exec_prefix
);
4248 strcat (temp
, spec_machine
);
4249 strcat (temp
, dir_separator_str
);
4250 strcat (temp
, spec_version
);
4251 strcat (temp
, dir_separator_str
);
4252 gcc_exec_prefix
= temp
;
4255 /* Now we have the specs.
4256 Set the `valid' bits for switches that match anything in any spec. */
4258 validate_all_switches ();
4260 /* Now that we have the switches and the specs, set
4261 the subdirectory based on the options. */
4262 set_multilib_dir ();
4264 /* Warn about any switches that no pass was interested in. */
4266 for (i
= 0; i
< n_switches
; i
++)
4267 if (! switches
[i
].valid
)
4268 error ("unrecognized option `-%s'", switches
[i
].part1
);
4270 /* Obey some of the options. */
4272 if (print_search_dirs
)
4274 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4275 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4276 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4280 if (print_file_name
)
4282 printf ("%s\n", find_file (print_file_name
));
4286 if (print_prog_name
)
4288 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4289 printf ("%s\n", (newname
? newname
: print_prog_name
));
4293 if (print_multi_lib
)
4295 print_multilib_info ();
4299 if (print_multi_directory
)
4301 if (multilib_dir
== NULL
)
4304 printf ("%s\n", multilib_dir
);
4310 if (! strcmp (version_string
, compiler_version
))
4311 fprintf (stderr
, "gcc version %s\n", version_string
);
4313 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4314 version_string
, compiler_version
);
4321 fatal ("No input files");
4323 /* Make a place to record the compiler output file names
4324 that correspond to the input files. */
4326 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4327 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4329 /* Record which files were specified explicitly as link input. */
4331 explicit_link_files
= xmalloc (n_infiles
);
4332 bzero (explicit_link_files
, n_infiles
);
4334 for (i
= 0; i
< n_infiles
; i
++)
4336 register struct compiler
*cp
= 0;
4337 int this_file_error
= 0;
4339 /* Tell do_spec what to substitute for %i. */
4341 input_filename
= infiles
[i
].name
;
4342 input_filename_length
= strlen (input_filename
);
4343 input_file_number
= i
;
4345 /* Use the same thing in %o, unless cp->spec says otherwise. */
4347 outfiles
[i
] = input_filename
;
4349 /* Figure out which compiler from the file's suffix. */
4351 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4352 infiles
[i
].language
);
4356 /* Ok, we found an applicable compiler. Run its spec. */
4357 /* First say how much of input_filename to substitute for %b */
4361 if (cp
->spec
[0][0] == '#')
4362 error ("%s: %s compiler not installed on this system",
4363 input_filename
, &cp
->spec
[0][1]);
4365 input_basename
= input_filename
;
4366 for (p
= input_filename
; *p
; p
++)
4367 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4368 input_basename
= p
+ 1;
4370 /* Find a suffix starting with the last period,
4371 and set basename_length to exclude that suffix. */
4372 basename_length
= strlen (input_basename
);
4373 p
= input_basename
+ basename_length
;
4374 while (p
!= input_basename
&& *p
!= '.') --p
;
4375 if (*p
== '.' && p
!= input_basename
)
4377 basename_length
= p
- input_basename
;
4378 input_suffix
= p
+ 1;
4384 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4386 len
+= strlen (cp
->spec
[j
]);
4388 p
= (char *) xmalloc (len
+ 1);
4391 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4394 strcpy (p
+ len
, cp
->spec
[j
]);
4395 len
+= strlen (cp
->spec
[j
]);
4398 value
= do_spec (p
);
4401 this_file_error
= 1;
4404 /* If this file's name does not contain a recognized suffix,
4405 record it as explicit linker input. */
4408 explicit_link_files
[i
] = 1;
4410 /* Clear the delete-on-failure queue, deleting the files in it
4411 if this compilation failed. */
4413 if (this_file_error
)
4415 delete_failure_queue ();
4418 /* If this compilation succeeded, don't delete those files later. */
4419 clear_failure_queue ();
4422 /* Run ld to link all the compiler output files. */
4424 if (error_count
== 0)
4426 int tmp
= execution_count
;
4430 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4432 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4433 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4435 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4437 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4438 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4441 for (i
= 0; i
< n_switches
; i
++)
4445 obstack_grow (&collect_obstack
, " ", 1);
4448 obstack_grow (&collect_obstack
, "-", 1);
4449 obstack_grow (&collect_obstack
, switches
[i
].part1
,
4450 strlen (switches
[i
].part1
));
4452 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4454 obstack_grow (&collect_obstack
, " ", 1);
4455 obstack_grow (&collect_obstack
, *args
, strlen (*args
));
4458 obstack_grow (&collect_obstack
, "\0", 1);
4459 putenv (obstack_finish (&collect_obstack
));
4461 value
= do_spec (link_command_spec
);
4464 linker_was_run
= (tmp
!= execution_count
);
4467 /* Warn if a -B option was specified but the prefix was never used. */
4468 unused_prefix_warnings (&exec_prefixes
);
4469 unused_prefix_warnings (&startfile_prefixes
);
4471 /* If options said don't run linker,
4472 complain about input files to be given to the linker. */
4474 if (! linker_was_run
&& error_count
== 0)
4475 for (i
= 0; i
< n_infiles
; i
++)
4476 if (explicit_link_files
[i
])
4477 error ("%s: linker input file unused since linking not done",
4480 /* Delete some or all of the temporary files we made. */
4483 delete_failure_queue ();
4484 delete_temp_files ();
4486 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4491 /* Find the proper compilation spec for the file name NAME,
4492 whose length is LENGTH. LANGUAGE is the specified language,
4493 or 0 if none specified. */
4495 static struct compiler
*
4496 lookup_compiler (name
, length
, language
)
4501 struct compiler
*cp
;
4503 /* Look for the language, if one is spec'd. */
4506 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4510 if (cp
->suffix
[0] == '@'
4511 && !strcmp (cp
->suffix
+ 1, language
))
4515 error ("language %s not recognized", language
);
4518 /* Look for a suffix. */
4519 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4521 if (/* The suffix `-' matches only the file name `-'. */
4522 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4524 (strlen (cp
->suffix
) < length
4525 /* See if the suffix matches the end of NAME. */
4527 && (!strcmp (cp
->suffix
,
4528 name
+ length
- strlen (cp
->suffix
))
4529 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4530 && !strcasecmp (cp
->suffix
,
4531 name
+ length
- strlen (cp
->suffix
)))))
4533 && !strcmp (cp
->suffix
,
4534 name
+ length
- strlen (cp
->suffix
))))
4537 if (cp
->spec
[0][0] == '@')
4539 struct compiler
*new;
4540 /* An alias entry maps a suffix to a language.
4541 Search for the language; pass 0 for NAME and LENGTH
4542 to avoid infinite recursion if language not found.
4543 Construct the new compiler spec. */
4544 language
= cp
->spec
[0] + 1;
4545 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4546 new->suffix
= cp
->suffix
;
4547 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4548 (char *) new->spec
, sizeof new->spec
);
4551 /* A non-alias entry: return it. */
4563 register char *value
= (char *) malloc (size
);
4565 fatal ("virtual memory exhausted");
4570 xrealloc (ptr
, size
)
4574 register char *value
= (char *) realloc (ptr
, size
);
4576 fatal ("virtual memory exhausted");
4580 /* This function is based on the one in libiberty. */
4583 concat
VPROTO((char *first
, ...))
4585 register int length
;
4586 register char *newstr
;
4594 /* First compute the size of the result and get sufficient memory. */
4596 VA_START (args
, first
);
4598 first
= va_arg (args
, char *);
4606 length
+= strlen (arg
);
4607 arg
= va_arg (args
, char *);
4610 newstr
= (char *) xmalloc (length
+ 1);
4613 /* Now copy the individual pieces to the result string. */
4615 VA_START (args
, first
);
4617 first
= va_arg (args
, char *);
4626 arg
= va_arg (args
, char *);
4635 save_string (s
, len
)
4639 register char *result
= xmalloc (len
+ 1);
4641 bcopy (s
, result
, len
);
4647 pfatal_with_name (name
)
4650 fatal ("%s: %s", name
, my_strerror (errno
));
4654 perror_with_name (name
)
4657 error ("%s: %s", name
, my_strerror (errno
));
4661 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
4667 /* Space for trailing '\0' is in %s. */
4668 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
4669 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
4673 fatal ("%s: %s", errmsg_fmt
, my_strerror (errno
));
4676 /* More 'friendly' abort that prints the line and file.
4677 config.h can #define abort fancy_abort if you like that sort of thing. */
4682 fatal ("Internal gcc abort.");
4687 /* Output an error message and exit */
4690 fatal
VPROTO((char *format
, ...))
4697 VA_START (ap
, format
);
4700 format
= va_arg (ap
, char *);
4703 fprintf (stderr
, "%s: ", programname
);
4704 vfprintf (stderr
, format
, ap
);
4706 fprintf (stderr
, "\n");
4707 delete_temp_files ();
4712 error
VPROTO((char *format
, ...))
4719 VA_START (ap
, format
);
4722 format
= va_arg (ap
, char *);
4725 fprintf (stderr
, "%s: ", programname
);
4726 vfprintf (stderr
, format
, ap
);
4729 fprintf (stderr
, "\n");
4732 #else /* not HAVE_VPRINTF */
4735 fatal (msg
, arg1
, arg2
)
4736 char *msg
, *arg1
, *arg2
;
4738 error (msg
, arg1
, arg2
);
4739 delete_temp_files ();
4744 error (msg
, arg1
, arg2
)
4745 char *msg
, *arg1
, *arg2
;
4747 fprintf (stderr
, "%s: ", programname
);
4748 fprintf (stderr
, msg
, arg1
, arg2
);
4749 fprintf (stderr
, "\n");
4752 #endif /* not HAVE_VPRINTF */
4756 validate_all_switches ()
4758 struct compiler
*comp
;
4761 struct spec_list
*spec
;
4763 for (comp
= compilers
; comp
->spec
[0]; comp
++)
4766 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
4770 if (c
== '%' && *p
== '{')
4771 /* We have a switch spec. */
4772 validate_switches (p
+ 1);
4776 /* look through the linked list of extra specs read from the specs file */
4777 for (spec
= specs
; spec
; spec
= spec
->next
)
4781 if (c
== '%' && *p
== '{')
4782 /* We have a switch spec. */
4783 validate_switches (p
+ 1);
4786 p
= link_command_spec
;
4788 if (c
== '%' && *p
== '{')
4789 /* We have a switch spec. */
4790 validate_switches (p
+ 1);
4792 /* Now notice switches mentioned in the machine-specific specs. */
4796 if (c
== '%' && *p
== '{')
4797 /* We have a switch spec. */
4798 validate_switches (p
+ 1);
4802 if (c
== '%' && *p
== '{')
4803 /* We have a switch spec. */
4804 validate_switches (p
+ 1);
4808 if (c
== '%' && *p
== '{')
4809 /* We have a switch spec. */
4810 validate_switches (p
+ 1);
4812 p
= signed_char_spec
;
4814 if (c
== '%' && *p
== '{')
4815 /* We have a switch spec. */
4816 validate_switches (p
+ 1);
4820 if (c
== '%' && *p
== '{')
4821 /* We have a switch spec. */
4822 validate_switches (p
+ 1);
4826 if (c
== '%' && *p
== '{')
4827 /* We have a switch spec. */
4828 validate_switches (p
+ 1);
4832 if (c
== '%' && *p
== '{')
4833 /* We have a switch spec. */
4834 validate_switches (p
+ 1);
4838 if (c
== '%' && *p
== '{')
4839 /* We have a switch spec. */
4840 validate_switches (p
+ 1);
4844 if (c
== '%' && *p
== '{')
4845 /* We have a switch spec. */
4846 validate_switches (p
+ 1);
4850 if (c
== '%' && *p
== '{')
4851 /* We have a switch spec. */
4852 validate_switches (p
+ 1);
4857 for (i
= 0; i
< sizeof (extra_specs
) / sizeof (extra_specs
[0]); i
++)
4859 p
= extra_specs
[i
].spec
;
4861 if (c
== '%' && *p
== '{')
4862 /* We have a switch spec. */
4863 validate_switches (p
+ 1);
4870 /* Look at the switch-name that comes after START
4871 and mark as valid all supplied switches that match it. */
4874 validate_switches (start
)
4877 register char *p
= start
;
4892 while (*p
!= ':' && *p
!= '}') p
++;
4896 else if (p
[-1] == '*')
4898 /* Mark all matching switches as valid. */
4900 for (i
= 0; i
< n_switches
; i
++)
4901 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
4902 switches
[i
].valid
= 1;
4906 /* Mark an exact matching switch as valid. */
4907 for (i
= 0; i
< n_switches
; i
++)
4909 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4910 && switches
[i
].part1
[p
- filter
] == 0)
4911 switches
[i
].valid
= 1;
4916 /* Check whether a particular argument was used. The first time we
4917 canonialize the switches to keep only the ones we care about. */
4931 static struct mswitchstr
*mswitches
;
4932 static int n_mswitches
;
4937 struct mswitchstr
*matches
;
4941 /* Break multilib_matches into the component strings of string and replacement
4943 for (p
= multilib_matches
; *p
!= '\0'; p
++)
4947 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
4949 q
= multilib_matches
;
4960 matches
[i
].len
= q
- matches
[i
].str
;
4962 matches
[i
].replace
= ++q
;
4963 while (*q
!= ';' && *q
!= '\0')
4969 matches
[i
].rep_len
= q
- matches
[i
].replace
;
4977 /* Now build a list of the replacement string for switches that we care about */
4978 mswitches
= (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
)) * n_switches
);
4979 for (i
= 0; i
< n_switches
; i
++)
4981 int xlen
= strlen (switches
[i
].part1
);
4982 for (j
= 0; j
< cnt
; j
++)
4983 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
4985 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
4986 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
4987 mswitches
[n_mswitches
].replace
= (char *)0;
4988 mswitches
[n_mswitches
].rep_len
= 0;
4995 for (i
= 0; i
< n_mswitches
; i
++)
4996 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5003 default_arg (p
, len
)
5010 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5012 while (*start
== ' ' || *start
== '\t')
5018 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5021 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5028 /* Work out the subdirectory to use based on the
5029 options. The format of multilib_select is a list of elements.
5030 Each element is a subdirectory name followed by a list of options
5031 followed by a semicolon. gcc will consider each line in turn. If
5032 none of the options beginning with an exclamation point are
5033 present, and all of the other options are present, that
5034 subdirectory will be used. */
5039 char *p
= multilib_select
;
5041 char *this_path
, *this_arg
;
5047 /* Ignore newlines. */
5054 /* Get the initial path. */
5062 this_path_len
= p
- this_path
;
5064 /* Check the arguments. */
5079 while (*p
!= ' ' && *p
!= ';')
5086 if (*this_arg
!= '!')
5094 /* If this is a default argument, we can just ignore it.
5095 This is true even if this_arg begins with '!'. Beginning
5096 with '!' does not mean that this argument is necessarily
5097 inappropriate for this library: it merely means that
5098 there is a more specific library which uses this
5099 argument. If this argument is a default, we need not
5100 consider that more specific library. */
5101 if (! default_arg (this_arg
, p
- this_arg
))
5103 ok
= used_arg (this_arg
, p
- this_arg
);
5114 if (this_path_len
!= 1
5115 || this_path
[0] != '.')
5117 multilib_dir
= xmalloc (this_path_len
+ 1);
5118 strncpy (multilib_dir
, this_path
, this_path_len
);
5119 multilib_dir
[this_path_len
] = '\0';
5128 /* Print out the multiple library subdirectory selection
5129 information. This prints out a series of lines. Each line looks
5130 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5131 required. Only the desired options are printed out, the negative
5132 matches. The options are print without a leading dash. There are
5133 no spaces to make it easy to use the information in the shell.
5134 Each subdirectory is printed only once. This assumes the ordering
5135 generated by the genmultilib script. */
5138 print_multilib_info ()
5140 char *p
= multilib_select
;
5141 char *last_path
= 0, *this_path
;
5143 int last_path_len
= 0;
5147 /* Ignore newlines. */
5154 /* Get the initial path. */
5163 /* If this is a duplicate, skip it. */
5164 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5165 && ! strncmp (last_path
, this_path
, last_path_len
));
5167 last_path
= this_path
;
5168 last_path_len
= p
- this_path
;
5170 /* If this directory requires any default arguments, we can skip
5171 it. We will already have printed a directory identical to
5172 this one which does not require that default argument. */
5190 while (*q
!= ' ' && *q
!= ';')
5198 && default_arg (arg
, q
- arg
))
5213 for (p1
= last_path
; p1
< p
; p1
++)
5232 use_arg
= *p
!= '!';
5237 while (*p
!= ' ' && *p
!= ';')
5252 /* If there are extra options, print them now */
5253 if (multilib_extra
&& *multilib_extra
)
5255 int print_at
= TRUE
;
5258 for (q
= multilib_extra
; *q
!= '\0'; q
++)