1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-96, 1997 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)
85 #define exit __posix_exit
88 /* Define O_RDONLY if the system hasn't defined it for us. */
97 /* Test if something is a normal file. */
99 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
102 /* Test if something is a directory. */
104 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
107 /* By default there is no special suffix for executables. */
108 #ifdef EXECUTABLE_SUFFIX
109 #define HAVE_EXECUTABLE_SUFFIX
111 #define EXECUTABLE_SUFFIX ""
114 /* By default, the suffix for object files is ".o". */
116 #define HAVE_OBJECT_SUFFIX
118 #define OBJECT_SUFFIX ".o"
121 /* By default, colon separates directories in a path. */
122 #ifndef PATH_SEPARATOR
123 #define PATH_SEPARATOR ':'
126 #ifndef DIR_SEPARATOR
127 #define DIR_SEPARATOR '/'
130 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
132 #define obstack_chunk_alloc xmalloc
133 #define obstack_chunk_free free
136 extern char *getenv ();
138 extern char *choose_temp_base
PROTO((void));
144 #ifndef HAVE_STRERROR
146 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 char *cross_compile
= "1";
207 static char *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 init_spec
PROTO((void));
231 static void read_specs
PROTO((char *, int));
232 static void set_spec
PROTO((char *, char *));
233 static struct compiler
*lookup_compiler
PROTO((char *, int, char *));
234 static char *build_search_list
PROTO((struct path_prefix
*, char *, int));
235 static void putenv_from_prefixes
PROTO((struct path_prefix
*, char *));
236 static char *find_a_file
PROTO((struct path_prefix
*, char *, int));
237 static void add_prefix
PROTO((struct path_prefix
*, char *, int, int, int *));
238 static char *skip_whitespace
PROTO((char *));
239 static void record_temp_file
PROTO((char *, int, int));
240 static void delete_if_ordinary
PROTO((char *));
241 static void delete_temp_files
PROTO((void));
242 static void delete_failure_queue
PROTO((void));
243 static void clear_failure_queue
PROTO((void));
244 static int check_live_switch
PROTO((int, int));
245 static char *handle_braces
PROTO((char *));
246 static char *save_string
PROTO((char *, int));
247 static char *concat
PVPROTO((char *, ...));
248 static int do_spec
PROTO((char *));
249 static int do_spec_1
PROTO((char *, int, char *));
250 static char *find_file
PROTO((char *));
251 static int is_directory
PROTO((char *, char *, int));
252 static void validate_switches
PROTO((char *));
253 static void validate_all_switches
PROTO((void));
254 static void give_switch
PROTO((int, int, int));
255 static int used_arg
PROTO((char *, int));
256 static int default_arg
PROTO((char *, int));
257 static void set_multilib_dir
PROTO((void));
258 static void print_multilib_info
PROTO((void));
259 static void pfatal_with_name
PROTO((char *));
260 static void perror_with_name
PROTO((char *));
261 static void pfatal_pexecute
PROTO((char *, char *));
263 static void fatal
PVPROTO((char *, ...));
264 static void error
PVPROTO((char *, ...));
266 /* We must not provide any prototype here, even if ANSI C. */
267 static void fatal
PROTO(());
268 static void error
PROTO(());
275 /* Specs are strings containing lines, each of which (if not blank)
276 is made up of a program name, and arguments separated by spaces.
277 The program name must be exact and start from root, since no path
278 is searched and it is unreliable to depend on the current working directory.
279 Redirection of input or output is not supported; the subprograms must
280 accept filenames saying what files to read and write.
282 In addition, the specs can contain %-sequences to substitute variable text
283 or for conditional text. Here is a table of all defined %-sequences.
284 Note that spaces are not generated automatically around the results of
285 expanding these sequences; therefore, you can concatenate them together
286 or with constant text in a single argument.
288 %% substitute one % into the program name or argument.
289 %i substitute the name of the input file being processed.
290 %b substitute the basename of the input file being processed.
291 This is the substring up to (and not including) the last period
292 and not including the directory.
293 %g substitute the temporary-file-name-base. This is a string chosen
294 once per compilation. Different temporary file names are made by
295 concatenation of constant strings on the end, as in `%g.s'.
296 %g also has the same effect of %d.
297 %u like %g, but make the temporary file name unique.
298 %U returns the last file name generated with %u.
299 %d marks the argument containing or following the %d as a
300 temporary file name, so that that file will be deleted if CC exits
301 successfully. Unlike %g, this contributes no text to the argument.
302 %w marks the argument containing or following the %w as the
303 "output file" of this compilation. This puts the argument
304 into the sequence of arguments that %o will substitute later.
306 like %{...} but mark last argument supplied within
307 as a file to be deleted on failure.
308 %o substitutes the names of all the output files, with spaces
309 automatically placed around them. You should write spaces
310 around the %o as well or the results are undefined.
311 %o is for use in the specs for running the linker.
312 Input files whose names have no recognized suffix are not compiled
313 at all, but they are included among the output files, so they will
315 %O substitutes the suffix for object files.
316 %p substitutes the standard macro predefinitions for the
317 current target machine. Use this when running cpp.
318 %P like %p, but puts `__' before and after the name of each macro.
319 (Except macros that already have __.)
321 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
322 %s current argument is the name of a library or startup file of some sort.
323 Search for that file in a standard list of directories
324 and substitute the full name found.
325 %eSTR Print STR as an error message. STR is terminated by a newline.
326 Use this when inconsistent options are detected.
327 %x{OPTION} Accumulate an option for %X.
328 %X Output the accumulated linker options specified by compilations.
329 %Y Output the accumulated assembler options specified by compilations.
330 %Z Output the accumulated preprocessor options specified by compilations.
331 %v1 Substitute the major version number of GCC.
332 (For version 2.5.n, this is 2.)
333 %v2 Substitute the minor version number of GCC.
334 (For version 2.5.n, this is 5.)
335 %a process ASM_SPEC as a spec.
336 This allows config.h to specify part of the spec for running as.
337 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
338 used here. This can be used to run a post-processor after the
339 assembler has done it's job.
340 %D Dump out a -L option for each directory in startfile_prefixes.
341 If multilib_dir is set, extra entries are generated with it affixed.
342 %l process LINK_SPEC as a spec.
343 %L process LIB_SPEC as a spec.
344 %G process LIBGCC_SPEC as a spec.
345 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
346 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
347 %c process SIGNED_CHAR_SPEC as a spec.
348 %C process CPP_SPEC as a spec. A capital C is actually used here.
349 %1 process CC1_SPEC as a spec.
350 %2 process CC1PLUS_SPEC as a spec.
351 %| output "-" if the input for the current command is coming from a pipe.
352 %* substitute the variable part of a matched option. (See below.)
353 Note that each comma in the substituted string is replaced by
355 %{S} substitutes the -S switch, if that switch was given to CC.
356 If that switch was not specified, this substitutes nothing.
357 Here S is a metasyntactic variable.
358 %{S*} substitutes all the switches specified to CC whose names start
359 with -S. This is used for -o, -D, -I, etc; switches that take
360 arguments. CC considers `-o foo' as being one switch whose
361 name starts with `o'. %{o*} would substitute this text,
362 including the space; thus, two arguments would be generated.
363 %{^S*} likewise, but don't put a blank between a switch and any args.
364 %{S*:X} substitutes X if one or more switches whose names start with -S are
365 specified to CC. Note that the tail part of the -S option
366 (i.e. the part matched by the `*') will be substituted for each
367 occurrence of %* within X.
368 %{S:X} substitutes X, but only if the -S switch was given to CC.
369 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
370 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
371 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
372 %{.S:X} substitutes X, but only if processing a file with suffix S.
373 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
374 %(Spec) processes a specification defined in a specs file as *Spec:
375 %[Spec] as above, but put __ around -D arguments
377 The conditional text X in a %{S:X} or %{!S:X} construct may contain
378 other nested % constructs or spaces, or even newlines. They are
379 processed as usual, as described above.
381 The -O, -f, -m, and -W switches are handled specifically in these
382 constructs. If another value of -O or the negated form of a -f, -m, or
383 -W switch is found later in the command line, the earlier switch
384 value is ignored, except with {S*} where S is just one letter; this
385 passes all matching options.
387 The character | is used to indicate that a command should be piped to
388 the following command, but only if -pipe is specified.
390 Note that it is built into CC which switches take arguments and which
391 do not. You might think it would be useful to generalize this to
392 allow each compiler's spec to say which switches take arguments. But
393 this cannot be done in a consistent fashion. CC cannot even decide
394 which input files have been specified without knowing which switches
395 take arguments, and it must know which input files to compile in order
396 to tell which compilers to run.
398 CC also knows implicitly that arguments starting in `-l' are to be
399 treated as compiler output files, and passed to the linker in their
400 proper position among the other output files. */
402 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
404 /* config.h can define ASM_SPEC to provide extra args to the assembler
405 or extra switch-translations. */
410 /* config.h can define ASM_FINAL_SPEC to run a post processor after
411 the assembler has run. */
412 #ifndef ASM_FINAL_SPEC
413 #define ASM_FINAL_SPEC ""
416 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
417 or extra switch-translations. */
422 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
423 or extra switch-translations. */
428 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
429 or extra switch-translations. */
431 #define CC1PLUS_SPEC ""
434 /* config.h can define LINK_SPEC to provide extra args to the linker
435 or extra switch-translations. */
440 /* config.h can define LIB_SPEC to override the default libraries. */
442 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
445 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
448 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
449 /* Have gcc do the search for libgcc.a. */
450 #define LIBGCC_SPEC "libgcc.a%s"
452 #define LIBGCC_SPEC "-lgcc"
456 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
457 #ifndef STARTFILE_SPEC
458 #define STARTFILE_SPEC \
459 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
462 /* config.h can define SWITCHES_NEED_SPACES to control which options
463 require spaces between the option and the argument. */
464 #ifndef SWITCHES_NEED_SPACES
465 #define SWITCHES_NEED_SPACES ""
468 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
470 #define ENDFILE_SPEC ""
473 /* This spec is used for telling cpp whether char is signed or not. */
474 #ifndef SIGNED_CHAR_SPEC
475 /* Use #if rather than ?:
476 because MIPS C compiler rejects like ?: in initializers. */
477 #if DEFAULT_SIGNED_CHAR
478 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
480 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
484 static char *cpp_spec
= CPP_SPEC
;
485 static char *cpp_predefines
= CPP_PREDEFINES
;
486 static char *cc1_spec
= CC1_SPEC
;
487 static char *cc1plus_spec
= CC1PLUS_SPEC
;
488 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
489 static char *asm_spec
= ASM_SPEC
;
490 static char *asm_final_spec
= ASM_FINAL_SPEC
;
491 static char *link_spec
= LINK_SPEC
;
492 static char *lib_spec
= LIB_SPEC
;
493 static char *libgcc_spec
= LIBGCC_SPEC
;
494 static char *endfile_spec
= ENDFILE_SPEC
;
495 static char *startfile_spec
= STARTFILE_SPEC
;
496 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
498 /* Some compilers have limits on line lengths, and the multilib_select
499 and/or multilib_matches strings can be very long, so we build them at
501 static struct obstack multilib_obstack
;
502 static char *multilib_select
;
503 static char *multilib_matches
;
504 static char *multilib_defaults
;
505 #include "multilib.h"
507 /* Check whether a particular argument is a default argument. */
509 #ifndef MULTILIB_DEFAULTS
510 #define MULTILIB_DEFAULTS { "" }
513 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
516 struct user_specs
*next
;
520 static struct user_specs
*user_specs_head
, *user_specs_tail
;
522 /* This defines which switch letters take arguments. */
524 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
525 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
526 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
527 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
528 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
529 || (CHAR) == 'B' || (CHAR) == 'b')
531 #ifndef SWITCH_TAKES_ARG
532 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
535 /* This defines which multi-letter switches take arguments. */
537 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
538 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
539 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
540 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
541 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
542 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
543 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
545 #ifndef WORD_SWITCH_TAKES_ARG
546 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
549 /* Record the mapping from file suffixes for compilation specs. */
553 char *suffix
; /* Use this compiler for input files
554 whose names end in this suffix. */
556 char *spec
[4]; /* To use this compiler, concatenate these
557 specs and pass to do_spec. */
560 /* Pointer to a vector of `struct compiler' that gives the spec for
561 compiling a file, based on its suffix.
562 A file that does not end in any of these suffixes will be passed
563 unchanged to the loader and nothing else will be done to it.
565 An entry containing two 0s is used to terminate the vector.
567 If multiple entries match a file, the last matching one is used. */
569 static struct compiler
*compilers
;
571 /* Number of entries in `compilers', not counting the null terminator. */
573 static int n_compilers
;
575 /* The default list of file name suffixes and their compilation specs. */
577 static struct compiler default_compilers
[] =
579 /* Add lists of suffixes of known languages here. If those languages
580 were no present when we built the driver, we will hit these copies
581 and given a more meaningful error than "file not used since
582 linking is not done". */
583 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
584 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
585 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
586 {".fpp", "#Fortran"},
587 /* Next come the entries for C. */
590 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
591 %{C:%{!E:%eGNU C does not support -C without using -E}}\
592 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
593 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
594 %{ansi:-trigraphs -D__STRICT_ANSI__}\
595 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
596 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
597 %{traditional-cpp:-traditional}\
598 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
599 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
600 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
601 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
602 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
603 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
605 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
606 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
608 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
609 %{!pipe:%g.s} %A\n }}}}"},
611 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
612 %{C:%{!E:%eGNU C does not support -C without using -E}}\
613 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
614 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
615 %{ansi:-trigraphs -D__STRICT_ANSI__}\
616 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
617 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
618 %{traditional-cpp:-traditional}\
619 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
621 %{!E:%e-E required when input is from standard input}"},
622 {".m", "@objective-c"},
624 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
625 %{C:%{!E:%eGNU C does not support -C without using -E}}\
626 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
627 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
628 %{ansi:-trigraphs -D__STRICT_ANSI__}\
629 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
630 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
631 %{traditional-cpp:-traditional}\
632 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
633 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
634 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
635 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
636 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
637 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
638 -lang-objc %{gen-decls} \
640 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
641 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
643 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
644 %{!pipe:%g.s} %A\n }}}}"},
647 "%{!E:%eCompilation of header file requested} \
648 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
649 %{C:%{!E:%eGNU C does not support -C without using -E}}\
650 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
651 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
652 %{ansi:-trigraphs -D__STRICT_ANSI__}\
653 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
654 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
655 %{traditional-cpp:-traditional}\
656 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
658 {".i", "@cpp-output"},
660 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
661 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
662 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
664 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
665 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
667 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
668 %{!pipe:%g.s} %A\n }}}}"},
669 {".s", "@assembler"},
671 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
672 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
674 {".S", "@assembler-with-cpp"},
675 {"@assembler-with-cpp",
676 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
677 %{C:%{!E:%eGNU C does not support -C without using -E}}\
678 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
679 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
680 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
681 %{traditional-cpp:-traditional}\
682 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
683 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
684 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
685 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
686 %{!pipe:%g.s} %A\n }}}}"},
688 /* Mark end of table */
692 /* Number of elements in default_compilers, not counting the terminator. */
694 static int n_default_compilers
695 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
697 /* Here is the spec for running the linker, after compiling all files. */
699 /* -u* was put back because both BSD and SysV seem to support it. */
700 /* %{static:} simply prevents an error message if the target machine
701 doesn't handle -static. */
702 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
703 scripts which exist in user specified directories, or in standard
705 #ifdef LINK_LIBGCC_SPECIAL
706 /* Don't generate -L options. */
707 static char *link_command_spec
= "\
709 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
710 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
711 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
713 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
714 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
719 static char *link_command_spec
= "\
721 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
722 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
723 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
724 %{static:} %{L*} %D %o\
725 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
726 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
731 /* A vector of options to give to the linker.
732 These options are accumulated by %x,
733 and substituted into the linker command with %X. */
734 static int n_linker_options
;
735 static char **linker_options
;
737 /* A vector of options to give to the assembler.
738 These options are accumulated by -Wa,
739 and substituted into the assembler command with %Y. */
740 static int n_assembler_options
;
741 static char **assembler_options
;
743 /* A vector of options to give to the preprocessor.
744 These options are accumulated by -Wp,
745 and substituted into the preprocessor command with %Z. */
746 static int n_preprocessor_options
;
747 static char **preprocessor_options
;
749 /* Define how to map long options into short ones. */
751 /* This structure describes one mapping. */
754 /* The long option's name. */
756 /* The equivalent short option. */
758 /* Argument info. A string of flag chars; NULL equals no options.
759 a => argument required.
760 o => argument optional.
761 j => join argument to equivalent, making one word.
762 * => require other text after NAME as an argument. */
766 /* This is the table of mappings. Mappings are tried sequentially
767 for each option encountered; the first one that matches, wins. */
769 struct option_map option_map
[] =
771 {"--all-warnings", "-Wall", 0},
772 {"--ansi", "-ansi", 0},
773 {"--assemble", "-S", 0},
774 {"--assert", "-A", "a"},
775 {"--comments", "-C", 0},
776 {"--compile", "-c", 0},
777 {"--debug", "-g", "oj"},
778 {"--define-macro", "-D", "aj"},
779 {"--dependencies", "-M", 0},
780 {"--dump", "-d", "a"},
781 {"--dumpbase", "-dumpbase", "a"},
782 {"--entry", "-e", 0},
783 {"--extra-warnings", "-W", 0},
784 {"--for-assembler", "-Wa", "a"},
785 {"--for-linker", "-Xlinker", "a"},
786 {"--force-link", "-u", "a"},
787 {"--imacros", "-imacros", "a"},
788 {"--include", "-include", "a"},
789 {"--include-barrier", "-I-", 0},
790 {"--include-directory", "-I", "aj"},
791 {"--include-directory-after", "-idirafter", "a"},
792 {"--include-prefix", "-iprefix", "a"},
793 {"--include-with-prefix", "-iwithprefix", "a"},
794 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
795 {"--include-with-prefix-after", "-iwithprefix", "a"},
796 {"--language", "-x", "a"},
797 {"--library-directory", "-L", "a"},
798 {"--machine", "-m", "aj"},
799 {"--machine-", "-m", "*j"},
800 {"--no-line-commands", "-P", 0},
801 {"--no-precompiled-includes", "-noprecomp", 0},
802 {"--no-standard-includes", "-nostdinc", 0},
803 {"--no-standard-libraries", "-nostdlib", 0},
804 {"--no-warnings", "-w", 0},
805 {"--optimize", "-O", "oj"},
806 {"--output", "-o", "a"},
807 {"--pedantic", "-pedantic", 0},
808 {"--pedantic-errors", "-pedantic-errors", 0},
809 {"--pipe", "-pipe", 0},
810 {"--prefix", "-B", "a"},
811 {"--preprocess", "-E", 0},
812 {"--print-search-dirs", "-print-search-dirs", 0},
813 {"--print-file-name", "-print-file-name=", "aj"},
814 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
815 {"--print-missing-file-dependencies", "-MG", 0},
816 {"--print-multi-lib", "-print-multi-lib", 0},
817 {"--print-multi-directory", "-print-multi-directory", 0},
818 {"--print-prog-name", "-print-prog-name=", "aj"},
819 {"--profile", "-p", 0},
820 {"--profile-blocks", "-a", 0},
821 {"--quiet", "-q", 0},
822 {"--save-temps", "-save-temps", 0},
823 {"--shared", "-shared", 0},
824 {"--silent", "-q", 0},
825 {"--specs", "-specs=", "aj"},
826 {"--static", "-static", 0},
827 {"--symbolic", "-symbolic", 0},
828 {"--target", "-b", "a"},
829 {"--trace-includes", "-H", 0},
830 {"--traditional", "-traditional", 0},
831 {"--traditional-cpp", "-traditional-cpp", 0},
832 {"--trigraphs", "-trigraphs", 0},
833 {"--undefine-macro", "-U", "aj"},
834 {"--use-version", "-V", "a"},
835 {"--user-dependencies", "-MM", 0},
836 {"--verbose", "-v", 0},
837 {"--version", "-dumpversion", 0},
838 {"--warn-", "-W", "*j"},
839 {"--write-dependencies", "-MD", 0},
840 {"--write-user-dependencies", "-MMD", 0},
844 /* Translate the options described by *ARGCP and *ARGVP.
845 Make a new vector and store it back in *ARGVP,
846 and store its length in *ARGVC. */
849 translate_options (argcp
, argvp
)
855 char **argv
= *argvp
;
856 char **newv
= (char **) xmalloc ((argc
+ 2) * 2 * sizeof (char *));
860 newv
[newindex
++] = argv
[i
++];
864 /* Translate -- options. */
865 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
867 /* Find a mapping that applies to this option. */
868 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
870 int optlen
= strlen (option_map
[j
].name
);
871 int arglen
= strlen (argv
[i
]);
872 int complen
= arglen
> optlen
? optlen
: arglen
;
873 char *arginfo
= option_map
[j
].arg_info
;
878 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
885 k
< sizeof (option_map
) / sizeof (option_map
[0]);
887 if (strlen (option_map
[k
].name
) >= arglen
888 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
890 error ("Ambiguous abbreviation %s", argv
[i
]);
894 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
900 /* If the option has an argument, accept that. */
901 if (argv
[i
][optlen
] == '=')
902 arg
= argv
[i
] + optlen
+ 1;
904 /* If this mapping requires extra text at end of name,
905 accept that as "argument". */
906 else if (index (arginfo
, '*') != 0)
907 arg
= argv
[i
] + optlen
;
909 /* Otherwise, extra text at end means mismatch.
910 Try other mappings. */
915 else if (index (arginfo
, '*') != 0)
917 error ("Incomplete `%s' option", option_map
[j
].name
);
921 /* Handle arguments. */
922 if (index (arginfo
, 'a') != 0)
928 error ("Missing argument to `%s' option",
936 else if (index (arginfo
, '*') != 0)
938 else if (index (arginfo
, 'o') == 0)
941 error ("Extraneous argument to `%s' option",
946 /* Store the translation as one argv elt or as two. */
947 if (arg
!= 0 && index (arginfo
, 'j') != 0)
948 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
952 newv
[newindex
++] = option_map
[j
].equivalent
;
953 newv
[newindex
++] = arg
;
956 newv
[newindex
++] = option_map
[j
].equivalent
;
964 /* Handle old-fashioned options--just copy them through,
965 with their arguments. */
966 else if (argv
[i
][0] == '-')
968 char *p
= argv
[i
] + 1;
972 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
973 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
974 else if (WORD_SWITCH_TAKES_ARG (p
))
975 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
976 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
979 else if (! strcmp (p
, "Xlinker"))
982 /* Watch out for an option at the end of the command line that
983 is missing arguments, and avoid skipping past the end of the
985 if (nskip
+ i
> argc
)
990 newv
[newindex
++] = argv
[i
++];
995 /* Ordinary operands, or +e options. */
996 newv
[newindex
++] = argv
[i
++];
1009 #ifdef HAVE_STRERROR
1015 static char buffer
[30];
1017 return "cannot access";
1019 if (e
> 0 && e
< sys_nerr
)
1020 return sys_errlist
[e
];
1022 sprintf (buffer
, "Unknown error %d", e
);
1033 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1034 be considered whitespace. */
1035 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1037 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1041 while (*p
!= '\n') p
++;
1051 /* Structure to keep track of the specs that have been defined so far.
1052 These are accessed using %(specname) or %[specname] in a compiler
1057 /* The following 2 fields must be first */
1058 /* to allow EXTRA_SPECS to be initialized */
1059 char *name
; /* name of the spec. */
1060 char *ptr
; /* available ptr if no static pointer */
1062 /* The following fields are not initialized */
1063 /* by EXTRA_SPECS */
1064 char **ptr_spec
; /* pointer to the spec itself. */
1065 struct spec_list
*next
; /* Next spec in linked list. */
1066 int name_len
; /* length of the name */
1067 int alloc_p
; /* whether string was allocated */
1070 #define INIT_STATIC_SPEC(NAME,PTR) \
1071 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1073 /* List of statically defined specs */
1074 static struct spec_list static_specs
[] = {
1075 INIT_STATIC_SPEC ("asm", &asm_spec
),
1076 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1077 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1078 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1079 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1080 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1081 INIT_STATIC_SPEC ("link", &link_spec
),
1082 INIT_STATIC_SPEC ("lib", &lib_spec
),
1083 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1084 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1085 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1086 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1087 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1088 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1089 INIT_STATIC_SPEC ("version", &compiler_version
),
1090 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1091 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1092 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1093 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1096 #ifdef EXTRA_SPECS /* additional specs needed */
1097 static struct spec_list extra_specs
[] = { EXTRA_SPECS
};
1100 /* List of dynamically allocates specs that have been defined so far. */
1102 static struct spec_list
*specs
= (struct spec_list
*)0;
1105 /* Initialize the specs lookup routines. */
1110 struct spec_list
*next
= (struct spec_list
*)0;
1111 struct spec_list
*sl
= (struct spec_list
*)0;
1115 return; /* already initialized */
1118 fprintf (stderr
, "Using builtin specs.\n");
1121 for (i
= (sizeof (extra_specs
) / sizeof (extra_specs
[0])) - 1; i
>= 0; i
--)
1123 sl
= &extra_specs
[i
];
1125 sl
->name_len
= strlen (sl
->name
);
1126 sl
->ptr_spec
= &sl
->ptr
;
1131 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1133 sl
= &static_specs
[i
];
1142 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1143 removed; If the spec starts with a + then SPEC is added to the end of the
1147 set_spec (name
, spec
)
1151 struct spec_list
*sl
;
1153 int name_len
= strlen (name
);
1156 /* If this is the first call, initialize the statically allocated specs */
1159 struct spec_list
*next
= (struct spec_list
*)0;
1160 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1162 sl
= &static_specs
[i
];
1169 /* See if the spec already exists */
1170 for (sl
= specs
; sl
; sl
= sl
->next
)
1171 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1176 /* Not found - make it */
1177 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1178 sl
->name
= save_string (name
, strlen (name
));
1179 sl
->name_len
= name_len
;
1180 sl
->ptr_spec
= &sl
->ptr
;
1182 *(sl
->ptr_spec
) = "";
1187 old_spec
= *(sl
->ptr_spec
);
1188 *(sl
->ptr_spec
) = ((spec
[0] == '+' && isspace (spec
[1]))
1189 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1190 : save_string (spec
, strlen (spec
)));
1194 fprintf (stderr
, "Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1197 /* Free the old spec */
1198 if (old_spec
&& sl
->alloc_p
)
1204 /* Accumulate a command (program name and args), and run it. */
1206 /* Vector of pointers to arguments in the current line of specifications. */
1208 static char **argbuf
;
1210 /* Number of elements allocated in argbuf. */
1212 static int argbuf_length
;
1214 /* Number of elements in argbuf currently in use (containing args). */
1216 static int argbuf_index
;
1218 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1219 temp file. Used only if MKTEMP_EACH_FILE. */
1221 static struct temp_name
{
1222 char *suffix
; /* suffix associated with the code. */
1223 int length
; /* strlen (suffix). */
1224 int unique
; /* Indicates whether %g or %u/%U was used. */
1225 char *filename
; /* associated filename. */
1226 int filename_length
; /* strlen (filename). */
1227 struct temp_name
*next
;
1230 /* Number of commands executed so far. */
1232 static int execution_count
;
1234 /* Number of commands that exited with a signal. */
1236 static int signal_count
;
1238 /* Name with which this program was invoked. */
1240 static char *programname
;
1242 /* Structures to keep track of prefixes to try when looking for files. */
1246 char *prefix
; /* String to prepend to the path. */
1247 struct prefix_list
*next
; /* Next in linked list. */
1248 int require_machine_suffix
; /* Don't use without machine_suffix. */
1249 /* 2 means try both machine_suffix and just_machine_suffix. */
1250 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1255 struct prefix_list
*plist
; /* List of prefixes to try */
1256 int max_len
; /* Max length of a prefix in PLIST */
1257 char *name
; /* Name of this list (used in config stuff) */
1260 /* List of prefixes to try when looking for executables. */
1262 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1264 /* List of prefixes to try when looking for startup (crt0) files. */
1266 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1268 /* List of prefixes to try when looking for include files. */
1270 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1272 /* Suffix to attach to directories searched for commands.
1273 This looks like `MACHINE/VERSION/'. */
1275 static char *machine_suffix
= 0;
1277 /* Suffix to attach to directories searched for commands.
1278 This is just `MACHINE/'. */
1280 static char *just_machine_suffix
= 0;
1282 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1284 static char *gcc_exec_prefix
;
1286 /* Default prefixes to attach to command names. */
1288 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1289 #undef MD_EXEC_PREFIX
1290 #undef MD_STARTFILE_PREFIX
1291 #undef MD_STARTFILE_PREFIX_1
1294 #ifndef STANDARD_EXEC_PREFIX
1295 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1296 #endif /* !defined STANDARD_EXEC_PREFIX */
1298 static char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1299 static char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1300 #ifdef MD_EXEC_PREFIX
1301 static char *md_exec_prefix
= MD_EXEC_PREFIX
;
1304 #ifndef STANDARD_STARTFILE_PREFIX
1305 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1306 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1308 #ifdef MD_STARTFILE_PREFIX
1309 static char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1311 #ifdef MD_STARTFILE_PREFIX_1
1312 static char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1314 static char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1315 static char *standard_startfile_prefix_1
= "/lib/";
1316 static char *standard_startfile_prefix_2
= "/usr/lib/";
1318 #ifndef TOOLDIR_BASE_PREFIX
1319 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1321 static char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1322 static char *tooldir_prefix
;
1324 /* Subdirectory to use for locating libraries. Set by
1325 set_multilib_dir based on the compilation options. */
1327 static char *multilib_dir
;
1329 /* Clear out the vector of arguments (after a command is executed). */
1337 /* Add one argument to the vector at the end.
1338 This is done when a space is seen or at the end of the line.
1339 If DELETE_ALWAYS is nonzero, the arg is a filename
1340 and the file should be deleted eventually.
1341 If DELETE_FAILURE is nonzero, the arg is a filename
1342 and the file should be deleted if this compilation fails. */
1345 store_arg (arg
, delete_always
, delete_failure
)
1347 int delete_always
, delete_failure
;
1349 if (argbuf_index
+ 1 == argbuf_length
)
1351 argbuf
= (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1354 argbuf
[argbuf_index
++] = arg
;
1355 argbuf
[argbuf_index
] = 0;
1357 if (delete_always
|| delete_failure
)
1358 record_temp_file (arg
, delete_always
, delete_failure
);
1361 /* Read compilation specs from a file named FILENAME,
1362 replacing the default ones.
1364 A suffix which starts with `*' is a definition for
1365 one of the machine-specific sub-specs. The "suffix" should be
1366 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1367 The corresponding spec is stored in asm_spec, etc.,
1368 rather than in the `compilers' vector.
1370 Anything invalid in the file is a fatal error. */
1373 read_specs (filename
, main_p
)
1379 struct stat statbuf
;
1384 fprintf (stderr
, "Reading specs from %s\n", filename
);
1386 /* Open and stat the file. */
1387 desc
= open (filename
, O_RDONLY
, 0);
1389 pfatal_with_name (filename
);
1390 if (stat (filename
, &statbuf
) < 0)
1391 pfatal_with_name (filename
);
1393 /* Read contents of file into BUFFER. */
1394 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1395 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1397 pfatal_with_name (filename
);
1398 buffer
[readlen
] = 0;
1401 /* Scan BUFFER for specs, putting them in the vector. */
1407 char *in
, *out
, *p1
, *p2
, *p3
;
1409 /* Advance P in BUFFER to the next nonblank nocomment line. */
1410 p
= skip_whitespace (p
);
1414 /* Is this a special command that starts with '%'? */
1415 /* Don't allow this for the main specs file, since it would
1416 encourage people to overwrite it. */
1417 if (*p
== '%' && !main_p
)
1420 while (*p
&& *p
!= '\n') p
++;
1423 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1424 && (p1
[ sizeof ("%include")-1 ] == ' '
1425 || p1
[ sizeof ("%include")-1 ] == '\t'))
1429 p1
+= sizeof ("%include");
1430 while (*p1
== ' ' || *p1
== '\t') p1
++;
1432 if (*p1
++ != '<' || p
[-2] != '>')
1433 fatal ("specs %%include syntax malformed after %d characters",
1437 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1438 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1441 else if (!strncmp (p1
, "%include_noerr", sizeof ("%include_noerr")-1)
1442 && (p1
[ sizeof ("%include_noerr")-1 ] == ' '
1443 || p1
[ sizeof ("%include_noerr")-1 ] == '\t'))
1447 p1
+= sizeof ("%include_noerr");
1448 while (*p1
== ' ' || *p1
== '\t') p1
++;
1450 if (*p1
++ != '<' || p
[-2] != '>')
1451 fatal ("specs %%include syntax malformed after %d characters",
1455 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1457 read_specs (new_filename
, FALSE
);
1458 else if (verbose_flag
)
1459 fprintf (stderr
, "Could not find specs file %s\n", p1
);
1462 else if (!strncmp (p1
, "%rename", sizeof ("%rename")-1)
1463 && (p1
[ sizeof ("%rename")-1 ] == ' '
1464 || p1
[ sizeof ("%rename")-1 ] == '\t'))
1467 struct spec_list
*sl
;
1469 /* Get original name */
1470 p1
+= sizeof ("%rename");
1471 while (*p1
== ' ' || *p1
== '\t') p1
++;
1473 fatal ("specs %%rename syntax malformed after %d characters",
1477 while (*p2
&& !isspace (*p2
)) p2
++;
1478 if (*p2
!= ' ' && *p2
!= '\t')
1479 fatal ("specs %%rename syntax malformed after %d characters",
1484 while (*p2
== ' ' || *p2
== '\t') p2
++;
1486 fatal ("specs %%rename syntax malformed after %d characters",
1489 /* Get new spec name */
1491 while (*p3
&& !isspace (*p3
)) p3
++;
1493 fatal ("specs %%rename syntax malformed after %d characters",
1497 for (sl
= specs
; sl
; sl
= sl
->next
)
1498 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1502 fatal ("specs %s spec was not found to be renamed", p1
);
1504 if (!strcmp (p1
, p2
))
1509 fprintf (stderr
, "rename spec %s to %s\n", p1
, p2
);
1511 fprintf (stderr
, "spec is '%s'\n\n", *(sl
->ptr_spec
));
1515 set_spec (p2
, *(sl
->ptr_spec
));
1517 free (*(sl
->ptr_spec
));
1519 *(sl
->ptr_spec
) = "";
1524 fatal ("specs unknown %% command after %d characters",
1528 /* Find the colon that should end the suffix. */
1530 while (*p1
&& *p1
!= ':' && *p1
!= '\n') p1
++;
1531 /* The colon shouldn't be missing. */
1533 fatal ("specs file malformed after %d characters", p1
- buffer
);
1534 /* Skip back over trailing whitespace. */
1536 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t')) p2
--;
1537 /* Copy the suffix to a string. */
1538 suffix
= save_string (p
, p2
- p
);
1539 /* Find the next line. */
1540 p
= skip_whitespace (p1
+ 1);
1542 fatal ("specs file malformed after %d characters", p
- buffer
);
1544 /* Find next blank line. */
1545 while (*p1
&& !(*p1
== '\n' && p1
[1] == '\n')) p1
++;
1546 /* Specs end at the blank line and do not include the newline. */
1547 spec
= save_string (p
, p1
- p
);
1550 /* Delete backslash-newline sequences from the spec. */
1555 if (in
[0] == '\\' && in
[1] == '\n')
1557 else if (in
[0] == '#')
1559 while (*in
&& *in
!= '\n') in
++;
1566 if (suffix
[0] == '*')
1568 if (! strcmp (suffix
, "*link_command"))
1569 link_command_spec
= spec
;
1571 set_spec (suffix
+ 1, spec
);
1575 /* Add this pair to the vector. */
1577 = ((struct compiler
*)
1578 xrealloc (compilers
, (n_compilers
+ 2) * sizeof (struct compiler
)));
1579 compilers
[n_compilers
].suffix
= suffix
;
1580 bzero ((char *) compilers
[n_compilers
].spec
,
1581 sizeof compilers
[n_compilers
].spec
);
1582 compilers
[n_compilers
].spec
[0] = spec
;
1584 bzero ((char *) &compilers
[n_compilers
],
1585 sizeof compilers
[n_compilers
]);
1589 link_command_spec
= spec
;
1592 if (link_command_spec
== 0)
1593 fatal ("spec file has no spec for linking");
1596 /* Record the names of temporary files we tell compilers to write,
1597 and delete them at the end of the run. */
1599 /* This is the common prefix we use to make temp file names.
1600 It is chosen once for each run of this program.
1601 It is substituted into a spec by %g.
1602 Thus, all temp file names contain this prefix.
1603 In practice, all temp file names start with this prefix.
1605 This prefix comes from the envvar TMPDIR if it is defined;
1606 otherwise, from the P_tmpdir macro if that is defined;
1607 otherwise, in /usr/tmp or /tmp;
1608 or finally the current directory if all else fails. */
1610 static char *temp_filename
;
1612 /* Length of the prefix. */
1614 static int temp_filename_length
;
1616 /* Define the list of temporary files to delete. */
1621 struct temp_file
*next
;
1624 /* Queue of files to delete on success or failure of compilation. */
1625 static struct temp_file
*always_delete_queue
;
1626 /* Queue of files to delete on failure of compilation. */
1627 static struct temp_file
*failure_delete_queue
;
1629 /* Record FILENAME as a file to be deleted automatically.
1630 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1631 otherwise delete it in any case.
1632 FAIL_DELETE nonzero means delete it if a compilation step fails;
1633 otherwise delete it in any case. */
1636 record_temp_file (filename
, always_delete
, fail_delete
)
1641 register char *name
;
1642 name
= xmalloc (strlen (filename
) + 1);
1643 strcpy (name
, filename
);
1647 register struct temp_file
*temp
;
1648 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1649 if (! strcmp (name
, temp
->name
))
1651 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1652 temp
->next
= always_delete_queue
;
1654 always_delete_queue
= temp
;
1660 register struct temp_file
*temp
;
1661 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1662 if (! strcmp (name
, temp
->name
))
1664 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1665 temp
->next
= failure_delete_queue
;
1667 failure_delete_queue
= temp
;
1672 /* Delete all the temporary files whose names we previously recorded. */
1675 delete_if_ordinary (name
)
1682 printf ("Delete %s? (y or n) ", name
);
1686 while ((c
= getchar ()) != '\n' && c
!= EOF
) ;
1687 if (i
== 'y' || i
== 'Y')
1689 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1690 if (unlink (name
) < 0)
1692 perror_with_name (name
);
1696 delete_temp_files ()
1698 register struct temp_file
*temp
;
1700 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1701 delete_if_ordinary (temp
->name
);
1702 always_delete_queue
= 0;
1705 /* Delete all the files to be deleted on error. */
1708 delete_failure_queue ()
1710 register struct temp_file
*temp
;
1712 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1713 delete_if_ordinary (temp
->name
);
1717 clear_failure_queue ()
1719 failure_delete_queue
= 0;
1722 /* Routine to add variables to the environment. We do this to pass
1723 the pathname of the gcc driver, and the directories search to the
1724 collect2 program, which is being run as ld. This way, we can be
1725 sure of executing the right compiler when collect2 wants to build
1726 constructors and destructors. Since the environment variables we
1727 use come from an obstack, we don't have to worry about allocating
1736 #ifndef VMS /* nor about VMS */
1738 extern char **environ
;
1739 char **old_environ
= environ
;
1743 int str_len
= strlen (str
);
1747 while ((ch
= *p
++) != '\0' && ch
!= '=')
1753 /* Search for replacing an existing environment variable, and
1754 count the number of total environment variables. */
1755 for (envp
= old_environ
; *envp
; envp
++)
1758 if (!strncmp (str
, *envp
, name_len
))
1765 /* Add a new environment variable */
1766 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1768 bcopy ((char *) old_environ
, (char *) (environ
+ 1),
1769 sizeof (char *) * (num_envs
+1));
1774 #endif /* HAVE_PUTENV */
1777 /* Build a list of search directories from PATHS.
1778 PREFIX is a string to prepend to the list.
1779 If CHECK_DIR_P is non-zero we ensure the directory exists.
1780 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1781 It is also used by the --print-search-dirs flag. */
1784 build_search_list (paths
, prefix
, check_dir_p
)
1785 struct path_prefix
*paths
;
1789 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1791 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1792 int first_time
= TRUE
;
1793 struct prefix_list
*pprefix
;
1795 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1797 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1799 int len
= strlen (pprefix
->prefix
);
1803 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1806 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1809 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1810 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1813 if (just_machine_suffix
1814 && pprefix
->require_machine_suffix
== 2
1816 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1819 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1822 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1823 obstack_grow (&collect_obstack
, just_machine_suffix
,
1827 if (!pprefix
->require_machine_suffix
)
1830 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1833 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1836 obstack_1grow (&collect_obstack
, '\0');
1837 return obstack_finish (&collect_obstack
);
1840 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1844 putenv_from_prefixes (paths
, env_var
)
1845 struct path_prefix
*paths
;
1848 putenv (build_search_list (paths
, env_var
, 1));
1851 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1852 access to check permissions.
1853 Return 0 if not found, otherwise return its name, allocated with malloc. */
1856 find_a_file (pprefix
, name
, mode
)
1857 struct path_prefix
*pprefix
;
1862 char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1863 struct prefix_list
*pl
;
1864 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1867 len
+= strlen (machine_suffix
);
1869 temp
= xmalloc (len
);
1871 /* Determine the filename to execute (special case for absolute paths). */
1873 if (*name
== '/' || *name
== DIR_SEPARATOR
)
1875 if (access (name
, mode
))
1877 strcpy (temp
, name
);
1882 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
1886 /* Some systems have a suffix for executable files.
1887 So try appending that first. */
1888 if (file_suffix
[0] != 0)
1890 strcpy (temp
, pl
->prefix
);
1891 strcat (temp
, machine_suffix
);
1892 strcat (temp
, name
);
1893 strcat (temp
, file_suffix
);
1894 if (access (temp
, mode
) == 0)
1896 if (pl
->used_flag_ptr
!= 0)
1897 *pl
->used_flag_ptr
= 1;
1902 /* Now try just the name. */
1903 strcpy (temp
, pl
->prefix
);
1904 strcat (temp
, machine_suffix
);
1905 strcat (temp
, name
);
1906 if (access (temp
, mode
) == 0)
1908 if (pl
->used_flag_ptr
!= 0)
1909 *pl
->used_flag_ptr
= 1;
1914 /* Certain prefixes are tried with just the machine type,
1915 not the version. This is used for finding as, ld, etc. */
1916 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
1918 /* Some systems have a suffix for executable files.
1919 So try appending that first. */
1920 if (file_suffix
[0] != 0)
1922 strcpy (temp
, pl
->prefix
);
1923 strcat (temp
, just_machine_suffix
);
1924 strcat (temp
, name
);
1925 strcat (temp
, file_suffix
);
1926 if (access (temp
, mode
) == 0)
1928 if (pl
->used_flag_ptr
!= 0)
1929 *pl
->used_flag_ptr
= 1;
1934 strcpy (temp
, pl
->prefix
);
1935 strcat (temp
, just_machine_suffix
);
1936 strcat (temp
, name
);
1937 if (access (temp
, mode
) == 0)
1939 if (pl
->used_flag_ptr
!= 0)
1940 *pl
->used_flag_ptr
= 1;
1945 /* Certain prefixes can't be used without the machine suffix
1946 when the machine or version is explicitly specified. */
1947 if (!pl
->require_machine_suffix
)
1949 /* Some systems have a suffix for executable files.
1950 So try appending that first. */
1951 if (file_suffix
[0] != 0)
1953 strcpy (temp
, pl
->prefix
);
1954 strcat (temp
, name
);
1955 strcat (temp
, file_suffix
);
1956 if (access (temp
, mode
) == 0)
1958 if (pl
->used_flag_ptr
!= 0)
1959 *pl
->used_flag_ptr
= 1;
1964 strcpy (temp
, pl
->prefix
);
1965 strcat (temp
, name
);
1966 if (access (temp
, mode
) == 0)
1968 if (pl
->used_flag_ptr
!= 0)
1969 *pl
->used_flag_ptr
= 1;
1979 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1980 at the start of the list, otherwise it goes at the end.
1982 If WARN is nonzero, we will warn if no file is found
1983 through this prefix. WARN should point to an int
1984 which will be set to 1 if this entry is used.
1986 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1987 the complete value of machine_suffix.
1988 2 means try both machine_suffix and just_machine_suffix. */
1991 add_prefix (pprefix
, prefix
, first
, require_machine_suffix
, warn
)
1992 struct path_prefix
*pprefix
;
1995 int require_machine_suffix
;
1998 struct prefix_list
*pl
, **prev
;
2001 if (!first
&& pprefix
->plist
)
2003 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2008 prev
= &pprefix
->plist
;
2010 /* Keep track of the longest prefix */
2012 len
= strlen (prefix
);
2013 if (len
> pprefix
->max_len
)
2014 pprefix
->max_len
= len
;
2016 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2017 pl
->prefix
= save_string (prefix
, len
);
2018 pl
->require_machine_suffix
= require_machine_suffix
;
2019 pl
->used_flag_ptr
= warn
;
2026 pl
->next
= (struct prefix_list
*) 0;
2030 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2033 unused_prefix_warnings (pprefix
)
2034 struct path_prefix
*pprefix
;
2036 struct prefix_list
*pl
= pprefix
->plist
;
2040 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2042 if (pl
->require_machine_suffix
&& machine_suffix
)
2043 error ("file path prefix `%s%s' never used", pl
->prefix
,
2046 error ("file path prefix `%s' never used", pl
->prefix
);
2048 /* Prevent duplicate warnings. */
2049 *pl
->used_flag_ptr
= 1;
2055 /* Get rid of all prefixes built up so far in *PLISTP. */
2058 free_path_prefix (pprefix
)
2059 struct path_prefix
*pprefix
;
2061 struct prefix_list
*pl
= pprefix
->plist
;
2062 struct prefix_list
*temp
;
2068 free (temp
->prefix
);
2069 free ((char *) temp
);
2071 pprefix
->plist
= (struct prefix_list
*) 0;
2074 /* Execute the command specified by the arguments on the current line of spec.
2075 When using pipes, this includes several piped-together commands
2076 with `|' between them.
2078 Return 0 if successful, -1 if failed. */
2084 int n_commands
; /* # of command. */
2088 char *prog
; /* program name. */
2089 char **argv
; /* vector of args. */
2090 int pid
; /* pid of process for this command. */
2093 struct command
*commands
; /* each command buffer with above info. */
2095 /* Count # of piped commands. */
2096 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2097 if (strcmp (argbuf
[i
], "|") == 0)
2100 /* Get storage for each command. */
2102 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2104 /* Split argbuf into its separate piped processes,
2105 and record info about each one.
2106 Also search for the programs that are to be run. */
2108 commands
[0].prog
= argbuf
[0]; /* first command. */
2109 commands
[0].argv
= &argbuf
[0];
2110 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2112 commands
[0].argv
[0] = string
;
2114 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2115 if (strcmp (argbuf
[i
], "|") == 0)
2116 { /* each command. */
2117 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
2118 fatal ("-pipe not supported");
2120 argbuf
[i
] = 0; /* termination of command args. */
2121 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2122 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2123 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2125 commands
[n_commands
].argv
[0] = string
;
2129 argbuf
[argbuf_index
] = 0;
2131 /* If -v, print what we are about to do, and maybe query. */
2135 /* Print each piped command as a separate line. */
2136 for (i
= 0; i
< n_commands
; i
++)
2140 for (j
= commands
[i
].argv
; *j
; j
++)
2141 fprintf (stderr
, " %s", *j
);
2143 /* Print a pipe symbol after all but the last command. */
2144 if (i
+ 1 != n_commands
)
2145 fprintf (stderr
, " |");
2146 fprintf (stderr
, "\n");
2150 fprintf (stderr
, "\nGo ahead? (y or n) ");
2154 while (getchar () != '\n') ;
2155 if (i
!= 'y' && i
!= 'Y')
2160 /* Run each piped subprocess. */
2162 for (i
= 0; i
< n_commands
; i
++)
2164 char *errmsg_fmt
, *errmsg_arg
;
2165 char *string
= commands
[i
].argv
[0];
2167 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2168 programname
, temp_filename
,
2169 &errmsg_fmt
, &errmsg_arg
,
2170 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2171 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2172 | (string
== commands
[i
].prog
2173 ? PEXECUTE_SEARCH
: 0)
2174 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2176 if (commands
[i
].pid
== -1)
2177 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2179 if (string
!= commands
[i
].prog
)
2185 /* Wait for all the subprocesses to finish.
2186 We don't care what order they finish in;
2187 we know that N_COMMANDS waits will get them all.
2188 Ignore subprocesses that we don't know about,
2189 since they can be spawned by the process that exec'ed us. */
2194 for (i
= 0; i
< n_commands
; )
2200 pid
= pwait (commands
[i
].pid
, &status
, 0);
2204 for (j
= 0; j
< n_commands
; j
++)
2205 if (commands
[j
].pid
== pid
)
2210 if (WIFSIGNALED (status
))
2212 fatal ("Internal compiler error: program %s got fatal signal %d",
2213 commands
[j
].prog
, WTERMSIG (status
));
2217 else if (WIFEXITED (status
)
2218 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2228 /* Find all the switches given to us
2229 and make a vector describing them.
2230 The elements of the vector are strings, one per switch given.
2231 If a switch uses following arguments, then the `part1' field
2232 is the switch itself and the `args' field
2233 is a null-terminated vector containing the following arguments.
2234 The `live_cond' field is 1 if the switch is true in a conditional spec,
2235 -1 if false (overridden by a later switch), and is initialized to zero.
2236 The `valid' field is nonzero if any spec has looked at this switch;
2237 if it remains zero at the end of the run, it must be meaningless. */
2247 static struct switchstr
*switches
;
2249 static int n_switches
;
2257 /* Also a vector of input files specified. */
2259 static struct infile
*infiles
;
2261 static int n_infiles
;
2263 /* And a vector of corresponding output files is made up later. */
2265 static char **outfiles
;
2267 /* Used to track if none of the -B paths are used. */
2270 /* Used to track if standard path isn't used and -b or -V is specified. */
2271 static int warn_std
;
2273 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2274 static int *warn_std_ptr
= 0;
2277 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2279 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2280 is true if we should look for an executable suffix as well. */
2283 convert_filename (name
, do_exe
)
2288 int len
= strlen (name
);
2290 #ifdef HAVE_OBJECT_SUFFIX
2291 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2293 && name
[len
- 2] == '.'
2294 && name
[len
- 1] == 'o')
2296 obstack_grow (&obstack
, name
, len
- 2);
2297 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2298 name
= obstack_finish (&obstack
);
2302 #ifdef HAVE_EXECUTABLE_SUFFIX
2303 /* If there is no filetype, make it the executable suffix (which includes
2304 the "."). But don't get confused if we have just "-o". */
2305 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2308 for (i
= len
- 1; i
>= 0; i
--)
2309 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2312 for (i
++; i
< len
; i
++)
2316 obstack_grow (&obstack
, name
, len
);
2317 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2318 name
= obstack_finish (&obstack
);
2325 /* Create the vector `switches' and its contents.
2326 Store its length in `n_switches'. */
2329 process_command (argc
, argv
)
2335 char *spec_lang
= 0;
2336 int last_language_n_infiles
;
2339 int lang_n_infiles
= 0;
2341 gcc_exec_prefix
= getenv ("GCC_EXEC_PREFIX");
2346 /* Figure compiler version from version string. */
2348 compiler_version
= save_string (version_string
, strlen (version_string
));
2349 for (temp
= compiler_version
; *temp
; ++temp
)
2358 /* Set up the default search paths. */
2360 if (gcc_exec_prefix
)
2362 add_prefix (&exec_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2363 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, 0, 0, NULL_PTR
);
2366 /* COMPILER_PATH and LIBRARY_PATH have values
2367 that are lists of directory names with colons. */
2369 temp
= getenv ("COMPILER_PATH");
2372 char *startp
, *endp
;
2373 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2375 startp
= endp
= temp
;
2378 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2380 strncpy (nstore
, startp
, endp
-startp
);
2382 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2383 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2385 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2386 nstore
[endp
-startp
+1] = 0;
2389 nstore
[endp
-startp
] = 0;
2390 add_prefix (&exec_prefixes
, nstore
, 0, 0, NULL_PTR
);
2391 add_prefix (&include_prefixes
,
2392 concat (nstore
, "include", NULL_PTR
),
2396 endp
= startp
= endp
+ 1;
2403 temp
= getenv ("LIBRARY_PATH");
2404 if (temp
&& *cross_compile
== '0')
2406 char *startp
, *endp
;
2407 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2409 startp
= endp
= temp
;
2412 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2414 strncpy (nstore
, startp
, endp
-startp
);
2416 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2417 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2419 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2420 nstore
[endp
-startp
+1] = 0;
2423 nstore
[endp
-startp
] = 0;
2424 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2427 endp
= startp
= endp
+ 1;
2434 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2435 temp
= getenv ("LPATH");
2436 if (temp
&& *cross_compile
== '0')
2438 char *startp
, *endp
;
2439 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2441 startp
= endp
= temp
;
2444 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2446 strncpy (nstore
, startp
, endp
-startp
);
2448 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2449 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2451 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2452 nstore
[endp
-startp
+1] = 0;
2455 nstore
[endp
-startp
] = 0;
2456 add_prefix (&startfile_prefixes
, nstore
, 0, 0, NULL_PTR
);
2459 endp
= startp
= endp
+ 1;
2466 /* Convert new-style -- options to old-style. */
2467 translate_options (&argc
, &argv
);
2469 #ifdef LANG_SPECIFIC_DRIVER
2470 /* Do language-specific adjustment/addition of flags. */
2471 lang_specific_driver (&fatal
, &argc
, &argv
);
2474 /* Scan argv twice. Here, the first time, just count how many switches
2475 there will be in their vector, and how many input files in theirs.
2476 Here we also parse the switches that cc itself uses (e.g. -v). */
2478 for (i
= 1; i
< argc
; i
++)
2480 if (! strcmp (argv
[i
], "-dumpspecs"))
2482 struct spec_list
*sl
;
2484 for (sl
= specs
; sl
; sl
= sl
->next
)
2485 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2488 else if (! strcmp (argv
[i
], "-dumpversion"))
2490 printf ("%s\n", version_string
);
2493 else if (! strcmp (argv
[i
], "-dumpmachine"))
2495 printf ("%s\n", spec_machine
);
2498 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2499 print_search_dirs
= 1;
2500 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2501 print_file_name
= "libgcc.a";
2502 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2503 print_file_name
= argv
[i
] + 17;
2504 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2505 print_prog_name
= argv
[i
] + 17;
2506 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2507 print_multi_lib
= 1;
2508 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2509 print_multi_directory
= 1;
2510 else if (! strncmp (argv
[i
], "-Wa,", 4))
2513 /* Pass the rest of this option to the assembler. */
2515 n_assembler_options
++;
2516 if (!assembler_options
)
2518 = (char **) xmalloc (n_assembler_options
* sizeof (char **));
2521 = (char **) xrealloc (assembler_options
,
2522 n_assembler_options
* sizeof (char **));
2524 /* Split the argument at commas. */
2526 for (j
= 4; argv
[i
][j
]; j
++)
2527 if (argv
[i
][j
] == ',')
2529 assembler_options
[n_assembler_options
- 1]
2530 = save_string (argv
[i
] + prev
, j
- prev
);
2531 n_assembler_options
++;
2533 = (char **) xrealloc (assembler_options
,
2534 n_assembler_options
* sizeof (char **));
2537 /* Record the part after the last comma. */
2538 assembler_options
[n_assembler_options
- 1] = argv
[i
] + prev
;
2540 else if (! strncmp (argv
[i
], "-Wp,", 4))
2543 /* Pass the rest of this option to the preprocessor. */
2545 n_preprocessor_options
++;
2546 if (!preprocessor_options
)
2547 preprocessor_options
2548 = (char **) xmalloc (n_preprocessor_options
* sizeof (char **));
2550 preprocessor_options
2551 = (char **) xrealloc (preprocessor_options
,
2552 n_preprocessor_options
* sizeof (char **));
2554 /* Split the argument at commas. */
2556 for (j
= 4; argv
[i
][j
]; j
++)
2557 if (argv
[i
][j
] == ',')
2559 preprocessor_options
[n_preprocessor_options
- 1]
2560 = save_string (argv
[i
] + prev
, j
- prev
);
2561 n_preprocessor_options
++;
2562 preprocessor_options
2563 = (char **) xrealloc (preprocessor_options
,
2564 n_preprocessor_options
* sizeof (char **));
2567 /* Record the part after the last comma. */
2568 preprocessor_options
[n_preprocessor_options
- 1] = argv
[i
] + prev
;
2570 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2571 /* The +e options to the C++ front-end. */
2573 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2576 /* Split the argument at commas. */
2577 for (j
= 3; argv
[i
][j
]; j
++)
2578 n_infiles
+= (argv
[i
][j
] == ',');
2580 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2583 fatal ("argument to `-Xlinker' is missing");
2588 else if (strncmp (argv
[i
], "-l", 2) == 0)
2590 else if (strcmp (argv
[i
], "-save-temps") == 0)
2592 save_temps_flag
= 1;
2595 else if (strcmp (argv
[i
], "-specs") == 0)
2597 struct user_specs
*user
= (struct user_specs
*)
2598 xmalloc (sizeof (struct user_specs
));
2600 fatal ("argument to `-specs' is missing");
2602 user
->next
= (struct user_specs
*)0;
2603 user
->filename
= argv
[i
];
2604 if (user_specs_tail
)
2605 user_specs_tail
->next
= user
;
2607 user_specs_head
= user
;
2608 user_specs_tail
= user
;
2610 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2612 struct user_specs
*user
= (struct user_specs
*)
2613 xmalloc (sizeof (struct user_specs
));
2614 if (strlen (argv
[i
]) == 7)
2615 fatal ("argument to `-specs=' is missing");
2617 user
->next
= (struct user_specs
*)0;
2618 user
->filename
= argv
[i
]+7;
2619 if (user_specs_tail
)
2620 user_specs_tail
->next
= user
;
2622 user_specs_head
= user
;
2623 user_specs_tail
= user
;
2625 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2627 register char *p
= &argv
[i
][1];
2628 register int c
= *p
;
2634 if (p
[1] == 0 && i
+ 1 == argc
)
2635 fatal ("argument to `-b' is missing");
2637 spec_machine
= argv
[++i
];
2639 spec_machine
= p
+ 1;
2641 warn_std_ptr
= &warn_std
;
2646 int *temp
= (int *) xmalloc (sizeof (int));
2648 if (p
[1] == 0 && i
+ 1 == argc
)
2649 fatal ("argument to `-B' is missing");
2654 add_prefix (&exec_prefixes
, value
, 1, 0, &warn_B
);
2655 add_prefix (&startfile_prefixes
, value
, 1, 0, &warn_B
);
2656 add_prefix (&include_prefixes
, concat (value
, "include", NULL_PTR
),
2659 /* As a kludge, if the arg is "[foo/]stageN/", just add
2660 "[foo/]include" to the include prefix. */
2662 int len
= strlen (value
);
2665 && (value
[len
- 8] == '/'
2666 || value
[len
- 8] == DIR_SEPARATOR
)))
2667 && strncmp (value
+ len
- 7, "stage", 5) == 0
2668 && isdigit (value
[len
- 2])
2669 && (value
[len
- 1] == '/'
2670 || value
[len
- 1] == DIR_SEPARATOR
))
2673 add_prefix (&include_prefixes
, "include",
2677 char *string
= xmalloc (len
+ 1);
2678 strncpy (string
, value
, len
-7);
2679 strcpy (string
+len
-7, "include");
2680 add_prefix (&include_prefixes
, string
,
2689 case 'v': /* Print our subcommands and print versions. */
2691 /* If they do anything other than exactly `-v', don't set
2692 verbose_flag; rather, continue on to give the error. */
2700 if (p
[1] == 0 && i
+ 1 == argc
)
2701 fatal ("argument to `-V' is missing");
2703 spec_version
= argv
[++i
];
2705 spec_version
= p
+ 1;
2706 compiler_version
= spec_version
;
2707 warn_std_ptr
= &warn_std
;
2721 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2722 argv
[i
] = convert_filename (argv
[i
], 1);
2724 argv
[i
+1] = convert_filename (argv
[i
+1], 1);
2732 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2733 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2734 else if (WORD_SWITCH_TAKES_ARG (p
))
2735 i
+= WORD_SWITCH_TAKES_ARG (p
);
2745 if (have_c
&& have_o
&& lang_n_infiles
> 1)
2746 fatal ("cannot specify -o with -c and multiple compilations");
2748 /* Set up the search paths before we go looking for config files. */
2750 /* These come before the md prefixes so that we will find gcc's subcommands
2751 (such as cpp) rather than those of the host system. */
2752 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2753 as well as trying the machine and the version. */
2755 add_prefix (&exec_prefixes
, standard_exec_prefix
, 0, 2, warn_std_ptr
);
2756 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, 0, 2, warn_std_ptr
);
2759 add_prefix (&startfile_prefixes
, standard_exec_prefix
, 0, 1, warn_std_ptr
);
2760 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, 0, 1, warn_std_ptr
);
2762 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
2763 dir_separator_str
, NULL_PTR
);
2765 /* If tooldir is relative, base it on exec_prefixes. A relative
2766 tooldir lets us move the installed tree as a unit.
2768 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2769 directories, so that we can search both the user specified directory
2770 and the standard place. */
2772 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
2774 if (gcc_exec_prefix
)
2776 char *gcc_exec_tooldir_prefix
2777 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
2778 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2780 add_prefix (&exec_prefixes
,
2781 concat (gcc_exec_tooldir_prefix
, "bin",
2782 dir_separator_str
, NULL_PTR
),
2784 add_prefix (&startfile_prefixes
,
2785 concat (gcc_exec_tooldir_prefix
, "lib",
2786 dir_separator_str
, NULL_PTR
),
2790 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
2791 dir_separator_str
, spec_version
,
2792 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
2795 add_prefix (&exec_prefixes
,
2796 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
2798 add_prefix (&startfile_prefixes
,
2799 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
2802 /* More prefixes are enabled in main, after we read the specs file
2803 and determine whether this is cross-compilation or not. */
2806 /* Then create the space for the vectors and scan again. */
2808 switches
= ((struct switchstr
*)
2809 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
2810 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
2813 last_language_n_infiles
= -1;
2815 /* This, time, copy the text of each switch and store a pointer
2816 to the copy in the vector of switches.
2817 Store all the infiles in their vector. */
2819 for (i
= 1; i
< argc
; i
++)
2821 /* Just skip the switches that were handled by the preceding loop. */
2822 if (! strncmp (argv
[i
], "-Wa,", 4))
2824 else if (! strncmp (argv
[i
], "-Wp,", 4))
2826 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2828 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2830 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2832 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2834 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2836 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2838 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2840 /* Compensate for the +e options to the C++ front-end;
2841 they're there simply for cfront call-compatibility. We do
2842 some magic in default_compilers to pass them down properly.
2843 Note we deliberately start at the `+' here, to avoid passing
2844 -e0 or -e1 down into the linker. */
2845 switches
[n_switches
].part1
= &argv
[i
][0];
2846 switches
[n_switches
].args
= 0;
2847 switches
[n_switches
].live_cond
= 0;
2848 switches
[n_switches
].valid
= 0;
2851 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2854 /* Split the argument at commas. */
2856 for (j
= 4; argv
[i
][j
]; j
++)
2857 if (argv
[i
][j
] == ',')
2859 infiles
[n_infiles
].language
= 0;
2860 infiles
[n_infiles
++].name
2861 = save_string (argv
[i
] + prev
, j
- prev
);
2864 /* Record the part after the last comma. */
2865 infiles
[n_infiles
].language
= 0;
2866 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
2868 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2870 infiles
[n_infiles
].language
= 0;
2871 infiles
[n_infiles
++].name
= argv
[++i
];
2873 else if (strncmp (argv
[i
], "-l", 2) == 0)
2875 infiles
[n_infiles
].language
= 0;
2876 infiles
[n_infiles
++].name
= argv
[i
];
2878 else if (strcmp (argv
[i
], "-specs") == 0)
2880 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2882 /* -save-temps overrides -pipe, so that temp files are produced */
2883 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
2884 error ("Warning: -pipe ignored since -save-temps specified");
2885 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2887 register char *p
= &argv
[i
][1];
2888 register int c
= *p
;
2892 if (p
[1] == 0 && i
+ 1 == argc
)
2893 fatal ("argument to `-x' is missing");
2895 spec_lang
= argv
[++i
];
2898 if (! strcmp (spec_lang
, "none"))
2899 /* Suppress the warning if -xnone comes after the last input
2900 file, because alternate command interfaces like g++ might
2901 find it useful to place -xnone after each input file. */
2904 last_language_n_infiles
= n_infiles
;
2907 switches
[n_switches
].part1
= p
;
2908 /* Deal with option arguments in separate argv elements. */
2909 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
2910 || WORD_SWITCH_TAKES_ARG (p
))
2913 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
2917 /* Count only the option arguments in separate argv elements. */
2918 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
2920 if (i
+ n_args
>= argc
)
2921 fatal ("argument to `-%s' is missing", p
);
2922 switches
[n_switches
].args
2923 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
2925 switches
[n_switches
].args
[j
++] = argv
[++i
];
2926 /* Null-terminate the vector. */
2927 switches
[n_switches
].args
[j
] = 0;
2929 else if (index (switches_need_spaces
, c
))
2931 /* On some systems, ld cannot handle some options without
2932 a space. So split the option from its argument. */
2933 char *part1
= (char *) xmalloc (2);
2937 switches
[n_switches
].part1
= part1
;
2938 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
2939 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
2940 strcpy (switches
[n_switches
].args
[0], &p
[1]);
2941 switches
[n_switches
].args
[1] = 0;
2944 switches
[n_switches
].args
= 0;
2946 switches
[n_switches
].live_cond
= 0;
2947 switches
[n_switches
].valid
= 0;
2948 /* This is always valid, since gcc.c itself understands it. */
2949 if (!strcmp (p
, "save-temps"))
2950 switches
[n_switches
].valid
= 1;
2953 char ch
= switches
[n_switches
].part1
[0];
2954 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
2955 switches
[n_switches
].valid
= 1;
2961 #ifdef HAVE_OBJECT_SUFFIX
2962 argv
[i
] = convert_filename (argv
[i
], 0);
2965 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
2967 perror_with_name (argv
[i
]);
2972 infiles
[n_infiles
].language
= spec_lang
;
2973 infiles
[n_infiles
++].name
= argv
[i
];
2978 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
2979 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
2981 switches
[n_switches
].part1
= 0;
2982 infiles
[n_infiles
].name
= 0;
2985 /* Process a spec string, accumulating and running commands. */
2987 /* These variables describe the input file name.
2988 input_file_number is the index on outfiles of this file,
2989 so that the output file name can be stored for later use by %o.
2990 input_basename is the start of the part of the input file
2991 sans all directory names, and basename_length is the number
2992 of characters starting there excluding the suffix .c or whatever. */
2994 static char *input_filename
;
2995 static int input_file_number
;
2996 static int input_filename_length
;
2997 static int basename_length
;
2998 static char *input_basename
;
2999 static char *input_suffix
;
3001 /* These are variables used within do_spec and do_spec_1. */
3003 /* Nonzero if an arg has been started and not yet terminated
3004 (with space, tab or newline). */
3005 static int arg_going
;
3007 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3008 is a temporary file name. */
3009 static int delete_this_arg
;
3011 /* Nonzero means %w has been seen; the next arg to be terminated
3012 is the output file name of this compilation. */
3013 static int this_is_output_file
;
3015 /* Nonzero means %s has been seen; the next arg to be terminated
3016 is the name of a library file and we should try the standard
3017 search dirs for it. */
3018 static int this_is_library_file
;
3020 /* Nonzero means that the input of this command is coming from a pipe. */
3021 static int input_from_pipe
;
3023 /* Process the spec SPEC and run the commands specified therein.
3024 Returns 0 if the spec is successfully processed; -1 if failed. */
3034 delete_this_arg
= 0;
3035 this_is_output_file
= 0;
3036 this_is_library_file
= 0;
3037 input_from_pipe
= 0;
3039 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3041 /* Force out any unfinished command.
3042 If -pipe, this forces out the last command if it ended in `|'. */
3045 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3048 if (argbuf_index
> 0)
3055 /* Process the sub-spec SPEC as a portion of a larger spec.
3056 This is like processing a whole spec except that we do
3057 not initialize at the beginning and we do not supply a
3058 newline by default at the end.
3059 INSWITCH nonzero means don't process %-sequences in SPEC;
3060 in this case, % is treated as an ordinary character.
3061 This is used while substituting switches.
3062 INSWITCH nonzero also causes SPC not to terminate an argument.
3064 Value is zero unless a line was finished
3065 and the command on that line reported an error. */
3068 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3071 char *soft_matched_part
;
3073 register char *p
= spec
;
3080 /* If substituting a switch, treat all chars like letters.
3081 Otherwise, NL, SPC, TAB and % are special. */
3082 switch (inswitch
? 'a' : c
)
3085 /* End of line: finish any pending argument,
3086 then run the pending command if one has been started. */
3089 obstack_1grow (&obstack
, 0);
3090 string
= obstack_finish (&obstack
);
3091 if (this_is_library_file
)
3092 string
= find_file (string
);
3093 store_arg (string
, delete_this_arg
, this_is_output_file
);
3094 if (this_is_output_file
)
3095 outfiles
[input_file_number
] = string
;
3099 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3101 for (i
= 0; i
< n_switches
; i
++)
3102 if (!strcmp (switches
[i
].part1
, "pipe"))
3105 /* A `|' before the newline means use a pipe here,
3106 but only if -pipe was specified.
3107 Otherwise, execute now and don't pass the `|' as an arg. */
3110 input_from_pipe
= 1;
3111 switches
[i
].valid
= 1;
3118 if (argbuf_index
> 0)
3124 /* Reinitialize for a new command, and for a new argument. */
3127 delete_this_arg
= 0;
3128 this_is_output_file
= 0;
3129 this_is_library_file
= 0;
3130 input_from_pipe
= 0;
3134 /* End any pending argument. */
3137 obstack_1grow (&obstack
, 0);
3138 string
= obstack_finish (&obstack
);
3139 if (this_is_library_file
)
3140 string
= find_file (string
);
3141 store_arg (string
, delete_this_arg
, this_is_output_file
);
3142 if (this_is_output_file
)
3143 outfiles
[input_file_number
] = string
;
3147 obstack_1grow (&obstack
, c
);
3153 /* Space or tab ends an argument if one is pending. */
3156 obstack_1grow (&obstack
, 0);
3157 string
= obstack_finish (&obstack
);
3158 if (this_is_library_file
)
3159 string
= find_file (string
);
3160 store_arg (string
, delete_this_arg
, this_is_output_file
);
3161 if (this_is_output_file
)
3162 outfiles
[input_file_number
] = string
;
3164 /* Reinitialize for a new argument. */
3166 delete_this_arg
= 0;
3167 this_is_output_file
= 0;
3168 this_is_library_file
= 0;
3175 fatal ("Invalid specification! Bug in cc.");
3178 obstack_grow (&obstack
, input_basename
, basename_length
);
3183 delete_this_arg
= 2;
3186 /* Dump out the directories specified with LIBRARY_PATH,
3187 followed by the absolute directories
3188 that we search for startfiles. */
3191 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3193 char *buffer
= (char *) xmalloc (bufsize
);
3196 for (; pl
; pl
= pl
->next
)
3198 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3199 /* Used on systems which record the specified -L dirs
3200 and use them to search for dynamic linking. */
3201 /* Relative directories always come from -B,
3202 and it is better not to use them for searching
3203 at run time. In particular, stage1 loses */
3204 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3207 /* Try subdirectory if there is one. */
3208 if (multilib_dir
!= NULL
)
3212 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3214 bufsize
= (strlen (pl
->prefix
)
3215 + strlen (machine_suffix
)) * 2 + 1;
3216 buffer
= (char *) xrealloc (buffer
, bufsize
);
3217 strcpy (buffer
, pl
->prefix
);
3218 strcat (buffer
, machine_suffix
);
3219 if (is_directory (buffer
, multilib_dir
, 1))
3221 do_spec_1 ("-L", 0, NULL_PTR
);
3222 #ifdef SPACE_AFTER_L_OPTION
3223 do_spec_1 (" ", 0, NULL_PTR
);
3225 do_spec_1 (buffer
, 1, NULL_PTR
);
3226 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3227 /* Make this a separate argument. */
3228 do_spec_1 (" ", 0, NULL_PTR
);
3231 if (!pl
->require_machine_suffix
)
3233 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3235 do_spec_1 ("-L", 0, NULL_PTR
);
3236 #ifdef SPACE_AFTER_L_OPTION
3237 do_spec_1 (" ", 0, NULL_PTR
);
3239 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3240 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3241 /* Make this a separate argument. */
3242 do_spec_1 (" ", 0, NULL_PTR
);
3248 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3250 do_spec_1 ("-L", 0, NULL_PTR
);
3251 #ifdef SPACE_AFTER_L_OPTION
3252 do_spec_1 (" ", 0, NULL_PTR
);
3254 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3255 /* Remove slash from machine_suffix. */
3256 if (strlen (machine_suffix
) >= bufsize
)
3257 bufsize
= strlen (machine_suffix
) * 2 + 1;
3258 buffer
= (char *) xrealloc (buffer
, bufsize
);
3259 strcpy (buffer
, machine_suffix
);
3260 idx
= strlen (buffer
);
3261 if (buffer
[idx
- 1] == '/'
3262 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3263 buffer
[idx
- 1] = 0;
3264 do_spec_1 (buffer
, 1, NULL_PTR
);
3265 /* Make this a separate argument. */
3266 do_spec_1 (" ", 0, NULL_PTR
);
3269 if (!pl
->require_machine_suffix
)
3271 if (is_directory (pl
->prefix
, "", 1))
3273 do_spec_1 ("-L", 0, NULL_PTR
);
3274 #ifdef SPACE_AFTER_L_OPTION
3275 do_spec_1 (" ", 0, NULL_PTR
);
3277 /* Remove slash from pl->prefix. */
3278 if (strlen (pl
->prefix
) >= bufsize
)
3279 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3280 buffer
= (char *) xrealloc (buffer
, bufsize
);
3281 strcpy (buffer
, pl
->prefix
);
3282 idx
= strlen (buffer
);
3283 if (buffer
[idx
- 1] == '/'
3284 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3285 buffer
[idx
- 1] = 0;
3286 do_spec_1 (buffer
, 1, NULL_PTR
);
3287 /* Make this a separate argument. */
3288 do_spec_1 (" ", 0, NULL_PTR
);
3297 /* {...:%efoo} means report an error with `foo' as error message
3298 and don't execute any more commands for this file. */
3302 while (*p
!= 0 && *p
!= '\n') p
++;
3303 buf
= (char *) alloca (p
- q
+ 1);
3304 strncpy (buf
, q
, p
- q
);
3314 if (save_temps_flag
)
3316 obstack_grow (&obstack
, input_basename
, basename_length
);
3317 delete_this_arg
= 0;
3321 #ifdef MKTEMP_EACH_FILE
3322 /* ??? This has a problem: the total number of
3323 values mktemp can return is limited.
3324 That matters for the names of object files.
3325 In 2.4, do something about that. */
3326 struct temp_name
*t
;
3328 while (*p
== '.' || isalpha (*p
)
3329 || (p
[0] == '%' && p
[1] == 'O'))
3332 /* See if we already have an association of %g/%u/%U and
3334 for (t
= temp_names
; t
; t
= t
->next
)
3335 if (t
->length
== p
- suffix
3336 && strncmp (t
->suffix
, suffix
, p
- suffix
) == 0
3337 && t
->unique
== (c
!= 'g'))
3340 /* Make a new association if needed. %u requires one. */
3341 if (t
== 0 || c
== 'u')
3345 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3346 t
->next
= temp_names
;
3349 t
->length
= p
- suffix
;
3350 t
->suffix
= save_string (suffix
, p
- suffix
);
3351 t
->unique
= (c
!= 'g');
3352 temp_filename
= choose_temp_base ();
3353 temp_filename_length
= strlen (temp_filename
);
3354 t
->filename
= temp_filename
;
3355 t
->filename_length
= temp_filename_length
;
3358 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3359 delete_this_arg
= 1;
3361 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3362 if (c
== 'u' || c
== 'U')
3368 sprintf (buff
, "%d", unique
);
3369 obstack_grow (&obstack
, buff
, strlen (buff
));
3372 delete_this_arg
= 1;
3378 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3384 struct prefix_list
*pl
= include_prefixes
.plist
;
3386 if (gcc_exec_prefix
)
3388 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3389 /* Make this a separate argument. */
3390 do_spec_1 (" ", 0, NULL_PTR
);
3391 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3392 do_spec_1 (" ", 0, NULL_PTR
);
3395 for (; pl
; pl
= pl
->next
)
3397 do_spec_1 ("-isystem", 1, NULL_PTR
);
3398 /* Make this a separate argument. */
3399 do_spec_1 (" ", 0, NULL_PTR
);
3400 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3401 do_spec_1 (" ", 0, NULL_PTR
);
3407 for (i
= 0; i
< n_infiles
; i
++)
3408 store_arg (outfiles
[i
], 0, 0);
3412 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3417 this_is_library_file
= 1;
3421 this_is_output_file
= 1;
3426 int cur_index
= argbuf_index
;
3427 /* Handle the {...} following the %W. */
3430 p
= handle_braces (p
+ 1);
3433 /* If any args were output, mark the last one for deletion
3435 if (argbuf_index
!= cur_index
)
3436 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3440 /* %x{OPTION} records OPTION for %X to output. */
3446 /* Skip past the option value and make a copy. */
3451 string
= save_string (p1
+ 1, p
- p1
- 2);
3453 /* See if we already recorded this option. */
3454 for (i
= 0; i
< n_linker_options
; i
++)
3455 if (! strcmp (string
, linker_options
[i
]))
3461 /* This option is new; add it. */
3463 if (!linker_options
)
3465 = (char **) xmalloc (n_linker_options
* sizeof (char **));
3468 = (char **) xrealloc (linker_options
,
3469 n_linker_options
* sizeof (char **));
3471 linker_options
[n_linker_options
- 1] = string
;
3475 /* Dump out the options accumulated previously using %x. */
3477 for (i
= 0; i
< n_linker_options
; i
++)
3479 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3480 /* Make each accumulated option a separate argument. */
3481 do_spec_1 (" ", 0, NULL_PTR
);
3485 /* Dump out the options accumulated previously using -Wa,. */
3487 for (i
= 0; i
< n_assembler_options
; i
++)
3489 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3490 /* Make each accumulated option a separate argument. */
3491 do_spec_1 (" ", 0, NULL_PTR
);
3495 /* Dump out the options accumulated previously using -Wp,. */
3497 for (i
= 0; i
< n_preprocessor_options
; i
++)
3499 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3500 /* Make each accumulated option a separate argument. */
3501 do_spec_1 (" ", 0, NULL_PTR
);
3505 /* Here are digits and numbers that just process
3506 a certain constant string as a spec. */
3509 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3515 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3521 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3527 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3533 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3539 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3545 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3551 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3557 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3563 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3570 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3574 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3578 if (! strncmp (y
, "-D", 2))
3579 /* Copy the whole option. */
3580 while (*y
&& *y
!= ' ' && *y
!= '\t')
3582 else if (*y
== ' ' || *y
== '\t')
3583 /* Copy whitespace to the result. */
3585 /* Don't copy other options. */
3592 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3600 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3604 /* Copy all of CPP_PREDEFINES into BUF,
3605 but put __ after every -D and at the end of each arg. */
3609 if (! strncmp (y
, "-D", 2))
3617 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3619 /* Stick __ at front of macro name. */
3622 /* Arrange to stick __ at the end as well. */
3626 /* Copy the macro name. */
3627 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3636 /* Copy the value given, if any. */
3637 while (*y
&& *y
!= ' ' && *y
!= '\t')
3640 else if (*y
== ' ' || *y
== '\t')
3641 /* Copy whitespace to the result. */
3643 /* Don't copy -A options */
3649 /* Copy all of CPP_PREDEFINES into BUF,
3650 but put __ after every -D. */
3654 if (! strncmp (y
, "-D", 2))
3659 || (*(y
+1) != '_' && ! isupper (*(y
+1))))
3661 /* Stick -D__ at front of macro name. */
3667 /* Copy the macro name. */
3668 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3671 /* Copy the value given, if any. */
3672 while (*y
&& *y
!= ' ' && *y
!= '\t')
3677 /* Do not copy this macro - we have just done it before */
3678 while (*y
&& *y
!= ' ' && *y
!= '\t')
3682 else if (*y
== ' ' || *y
== '\t')
3683 /* Copy whitespace to the result. */
3685 /* Don't copy -A options */
3691 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3695 if (! strncmp (y
, "-A", 2))
3696 /* Copy the whole option. */
3697 while (*y
&& *y
!= ' ' && *y
!= '\t')
3699 else if (*y
== ' ' || *y
== '\t')
3700 /* Copy whitespace to the result. */
3702 /* Don't copy other options. */
3709 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3716 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
3721 /* Here we define characters other than letters and digits. */
3724 p
= handle_braces (p
);
3730 obstack_1grow (&obstack
, '%');
3734 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
3735 do_spec_1 (" ", 0, NULL_PTR
);
3738 /* Process a string found as the value of a spec given by name.
3739 This feature allows individual machine descriptions
3740 to add and use their own specs.
3741 %[...] modifies -D options the way %P does;
3742 %(...) uses the spec unmodified. */
3747 struct spec_list
*sl
;
3750 /* The string after the S/P is the name of a spec that is to be
3752 while (*p
&& *p
!= ')' && *p
!= ']')
3755 /* See if it's in the list */
3756 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
3757 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
3759 name
= *(sl
->ptr_spec
);
3761 fprintf (stderr
, "Processing spec %c%s%c, which is '%s'\n",
3762 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
3771 value
= do_spec_1 (name
, 0, NULL_PTR
);
3777 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
3781 /* Copy all of NAME into BUF, but put __ after
3782 every -D and at the end of each arg, */
3787 if (! strncmp (y
, "-D", 2))
3797 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
3798 || *y
== '}' || *y
== 0))
3811 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3817 /* Discard the closing paren or bracket. */
3825 int c1
= *p
++; /* Select first or second version number. */
3826 char *v
= compiler_version
;
3829 /* The format of the version string is
3830 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3832 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3833 while (! isdigit (*v
))
3835 if (v
> compiler_version
&& v
[-1] != '-')
3838 /* If desired, advance to second version number. */
3841 /* Set V after the first period. */
3842 while (isdigit (*v
))
3849 /* Set Q at the next period or at the end. */
3851 while (isdigit (*q
))
3853 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
3856 /* Put that part into the command. */
3857 obstack_grow (&obstack
, v
, q
- v
);
3863 if (input_from_pipe
)
3864 do_spec_1 ("-", 0, NULL_PTR
);
3873 /* Backslash: treat next character as ordinary. */
3878 /* Ordinary character: put it into the current argument. */
3879 obstack_1grow (&obstack
, c
);
3883 return 0; /* End of string */
3886 /* Return 0 if we call do_spec_1 and that returns -1. */
3897 int include_blanks
= 1;
3900 /* A '^' after the open-brace means to not give blanks before args. */
3901 include_blanks
= 0, ++p
;
3904 /* A `|' after the open-brace means,
3905 if the test fails, output a single minus sign rather than nothing.
3906 This is used in %{|!pipe:...}. */
3910 /* A `!' after the open-brace negates the condition:
3911 succeed if the specified switch is not present. */
3915 /* A `.' after the open-brace means test against the current suffix. */
3925 while (*p
!= ':' && *p
!= '}') p
++;
3928 register int count
= 1;
3946 int found
= (input_suffix
!= 0
3947 && strlen (input_suffix
) == p
- filter
3948 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
3954 && do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
3959 else if (p
[-1] == '*' && p
[0] == '}')
3961 /* Substitute all matching switches as separate args. */
3964 for (i
= 0; i
< n_switches
; i
++)
3965 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
3966 && check_live_switch (i
, p
- filter
))
3967 give_switch (i
, 0, include_blanks
);
3971 /* Test for presence of the specified switch. */
3975 /* If name specified ends in *, as in {x*:...},
3976 check for %* and handle that case. */
3977 if (p
[-1] == '*' && !negate
)
3982 /* First see whether we have %*. */
3986 if (*r
== '%' && r
[1] == '*')
3990 /* If we do, handle that case. */
3993 /* Substitute all matching switches as separate args.
3994 But do this by substituting for %*
3995 in the text that follows the colon. */
3997 unsigned hard_match_len
= p
- filter
- 1;
3998 char *string
= save_string (p
+ 1, q
- p
- 2);
4000 for (i
= 0; i
< n_switches
; i
++)
4001 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4002 && check_live_switch (i
, -1))
4004 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4005 /* Pass any arguments this switch has. */
4006 give_switch (i
, 1, 1);
4013 /* If name specified ends in *, as in {x*:...},
4014 check for presence of any switch name starting with x. */
4017 for (i
= 0; i
< n_switches
; i
++)
4019 unsigned hard_match_len
= p
- filter
- 1;
4021 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4022 && check_live_switch (i
, hard_match_len
))
4028 /* Otherwise, check for presence of exact name specified. */
4031 for (i
= 0; i
< n_switches
; i
++)
4033 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4034 && switches
[i
].part1
[p
- filter
] == 0
4035 && check_live_switch (i
, -1))
4043 /* If it is as desired (present for %{s...}, absent for %{-s...})
4044 then substitute either the switch or the specified
4045 conditional text. */
4046 if (present
!= negate
)
4050 give_switch (i
, 0, include_blanks
);
4054 if (do_spec_1 (save_string (p
+ 1, q
- p
- 2), 0, NULL_PTR
) < 0)
4060 /* Here if a %{|...} conditional fails: output a minus sign,
4061 which means "standard output" or "standard input". */
4062 do_spec_1 ("-", 0, NULL_PTR
);
4069 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4070 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4071 spec, or -1 if either exact match or %* is used.
4073 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4074 whose value does not begin with "no-" is obsoleted by the same value
4075 with the "no-", similarly for a switch with the "no-" prefix. */
4078 check_live_switch (switchnum
, prefix_length
)
4082 char *name
= switches
[switchnum
].part1
;
4085 /* In the common case of {<at-most-one-letter>*}, a negating
4086 switch would always match, so ignore that case. We will just
4087 send the conflicting switches to the compiler phase. */
4088 if (prefix_length
>= 0 && prefix_length
<= 1)
4091 /* If we already processed this switch and determined if it was
4092 live or not, return our past determination. */
4093 if (switches
[switchnum
].live_cond
!= 0)
4094 return switches
[switchnum
].live_cond
> 0;
4096 /* Now search for duplicate in a manner that depends on the name. */
4100 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4101 if (switches
[i
].part1
[0] == 'O')
4103 switches
[switchnum
].valid
= 1;
4104 switches
[switchnum
].live_cond
= -1;
4109 case 'W': case 'f': case 'm':
4110 if (! strncmp (name
+ 1, "no-", 3))
4112 /* We have Xno-YYY, search for XYYY. */
4113 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4114 if (switches
[i
].part1
[0] == name
[0]
4115 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4117 switches
[switchnum
].valid
= 1;
4118 switches
[switchnum
].live_cond
= -1;
4124 /* We have XYYY, search for Xno-YYY. */
4125 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4126 if (switches
[i
].part1
[0] == name
[0]
4127 && switches
[i
].part1
[1] == 'n'
4128 && switches
[i
].part1
[2] == 'o'
4129 && switches
[i
].part1
[3] == '-'
4130 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4132 switches
[switchnum
].valid
= 1;
4133 switches
[switchnum
].live_cond
= -1;
4140 /* Otherwise the switch is live. */
4141 switches
[switchnum
].live_cond
= 1;
4145 /* Pass a switch to the current accumulating command
4146 in the same form that we received it.
4147 SWITCHNUM identifies the switch; it is an index into
4148 the vector of switches gcc received, which is `switches'.
4149 This cannot fail since it never finishes a command line.
4151 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4153 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4157 give_switch (switchnum
, omit_first_word
, include_blanks
)
4159 int omit_first_word
;
4162 if (!omit_first_word
)
4164 do_spec_1 ("-", 0, NULL_PTR
);
4165 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4168 if (switches
[switchnum
].args
!= 0)
4171 for (p
= switches
[switchnum
].args
; *p
; p
++)
4174 do_spec_1 (" ", 0, NULL_PTR
);
4175 do_spec_1 (*p
, 1, NULL_PTR
);
4179 do_spec_1 (" ", 0, NULL_PTR
);
4180 switches
[switchnum
].valid
= 1;
4183 /* Search for a file named NAME trying various prefixes including the
4184 user's -B prefix and some standard ones.
4185 Return the absolute file name found. If nothing is found, return NAME. */
4193 /* Try multilib_dir if it is defined. */
4194 if (multilib_dir
!= NULL
)
4198 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4199 strcpy (try, multilib_dir
);
4200 strcat (try, dir_separator_str
);
4203 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4205 /* If we don't find it in the multi library dir, then fall
4206 through and look for it in the normal places. */
4207 if (newname
!= NULL
)
4211 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4212 return newname
? newname
: name
;
4215 /* Determine whether a directory exists. If LINKER, return 0 for
4216 certain fixed names not needed by the linker. If not LINKER, it is
4217 only important to return 0 if the host machine has a small ARG_MAX
4221 is_directory (path1
, path2
, linker
)
4226 int len1
= strlen (path1
);
4227 int len2
= strlen (path2
);
4228 char *path
= (char *) alloca (3 + len1
+ len2
);
4232 #ifndef SMALL_ARG_MAX
4237 /* Construct the path from the two parts. Ensure the string ends with "/.".
4238 The resulting path will be a directory even if the given path is a
4240 bcopy (path1
, path
, len1
);
4241 bcopy (path2
, path
+ len1
, len2
);
4242 cp
= path
+ len1
+ len2
;
4243 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4244 *cp
++ = DIR_SEPARATOR
;
4248 /* Exclude directories that the linker is known to search. */
4251 && strcmp (path
, concat (dir_separator_str
, "lib",
4252 dir_separator_str
, ".", NULL_PTR
)) == 0)
4254 && strcmp (path
, concat (dir_separator_str
, "usr",
4255 dir_separator_str
, "lib",
4256 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4259 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4262 /* On fatal signals, delete all the temporary files. */
4265 fatal_error (signum
)
4268 signal (signum
, SIG_DFL
);
4269 delete_failure_queue ();
4270 delete_temp_files ();
4271 /* Get the same signal again, this time not handled,
4272 so its normal effect occurs. */
4273 kill (getpid (), signum
);
4284 int linker_was_run
= 0;
4285 char *explicit_link_files
;
4288 struct user_specs
*uptr
;
4290 p
= argv
[0] + strlen (argv
[0]);
4291 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4294 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4295 signal (SIGINT
, fatal_error
);
4297 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4298 signal (SIGHUP
, fatal_error
);
4300 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4301 signal (SIGTERM
, fatal_error
);
4303 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4304 signal (SIGPIPE
, fatal_error
);
4308 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4310 obstack_init (&obstack
);
4312 /* Build multilib_select, et. al from the separate lines that make up each
4313 multilib selection. */
4315 char **q
= multilib_raw
;
4318 obstack_init (&multilib_obstack
);
4319 while ((p
= *q
++) != (char *) 0)
4320 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4322 obstack_1grow (&multilib_obstack
, 0);
4323 multilib_select
= obstack_finish (&multilib_obstack
);
4325 q
= multilib_matches_raw
;
4326 while ((p
= *q
++) != (char *) 0)
4327 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4329 obstack_1grow (&multilib_obstack
, 0);
4330 multilib_matches
= obstack_finish (&multilib_obstack
);
4334 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4338 obstack_1grow (&multilib_obstack
, ' ');
4339 obstack_grow (&multilib_obstack
,
4340 multilib_defaults_raw
[i
],
4341 strlen (multilib_defaults_raw
[i
]));
4345 obstack_1grow (&multilib_obstack
, 0);
4346 multilib_defaults
= obstack_finish (&multilib_obstack
);
4349 /* Set up to remember the pathname of gcc and any options
4350 needed for collect. We use argv[0] instead of programname because
4351 we need the complete pathname. */
4352 obstack_init (&collect_obstack
);
4353 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4354 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4355 putenv (obstack_finish (&collect_obstack
));
4357 #ifdef INIT_ENVIRONMENT
4358 /* Set up any other necessary machine specific environment variables. */
4359 putenv (INIT_ENVIRONMENT
);
4362 /* Choose directory for temp files. */
4364 temp_filename
= choose_temp_base ();
4365 temp_filename_length
= strlen (temp_filename
);
4367 /* Make a table of what switches there are (switches, n_switches).
4368 Make a table of specified input files (infiles, n_infiles).
4369 Decode switches that are handled locally. */
4371 process_command (argc
, argv
);
4377 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4379 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4380 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4383 for (i
= 0; i
< n_switches
; i
++)
4388 obstack_grow (&collect_obstack
, " ", 1);
4391 obstack_grow (&collect_obstack
, "'-", 2);
4392 q
= switches
[i
].part1
;
4393 while (p
= (char *) index (q
,'\''))
4395 obstack_grow (&collect_obstack
, q
, p
-q
);
4396 obstack_grow (&collect_obstack
, "'\\''", 4);
4399 obstack_grow (&collect_obstack
, q
, strlen (q
));
4400 obstack_grow (&collect_obstack
, "'", 1);
4402 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4404 obstack_grow (&collect_obstack
, " '", 2);
4406 while (p
= (char *) index (q
,'\''))
4408 obstack_grow (&collect_obstack
, q
, p
-q
);
4409 obstack_grow (&collect_obstack
, "'\\''", 4);
4412 obstack_grow (&collect_obstack
, q
, strlen (q
));
4413 obstack_grow (&collect_obstack
, "'", 1);
4416 obstack_grow (&collect_obstack
, "\0", 1);
4417 putenv (obstack_finish (&collect_obstack
));
4420 /* Initialize the vector of specs to just the default.
4421 This means one element containing 0s, as a terminator. */
4423 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4424 bcopy ((char *) default_compilers
, (char *) compilers
,
4425 sizeof default_compilers
);
4426 n_compilers
= n_default_compilers
;
4428 /* Read specs from a file if there is one. */
4430 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4431 spec_version
, dir_separator_str
, NULL_PTR
);
4432 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4434 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4435 /* Read the specs file unless it is a default one. */
4436 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4437 read_specs (specs_file
, TRUE
);
4441 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4442 for any override of as, ld and libraries. */
4443 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4444 + strlen (just_machine_suffix
)
4445 + sizeof ("specs"));
4447 strcpy (specs_file
, standard_exec_prefix
);
4448 strcat (specs_file
, just_machine_suffix
);
4449 strcat (specs_file
, "specs");
4450 if (access (specs_file
, R_OK
) == 0)
4451 read_specs (specs_file
, TRUE
);
4453 /* Process any user specified specs in the order given on the command
4455 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4457 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4458 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4461 /* If not cross-compiling, look for startfiles in the standard places. */
4462 /* The fact that these are done here, after reading the specs file,
4463 means that it cannot be found in these directories.
4464 But that's okay. It should never be there anyway. */
4465 if (*cross_compile
== '0')
4467 #ifdef MD_EXEC_PREFIX
4468 add_prefix (&exec_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4469 add_prefix (&startfile_prefixes
, md_exec_prefix
, 0, 0, NULL_PTR
);
4472 #ifdef MD_STARTFILE_PREFIX
4473 add_prefix (&startfile_prefixes
, md_startfile_prefix
, 0, 0, NULL_PTR
);
4476 #ifdef MD_STARTFILE_PREFIX_1
4477 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, 0, 0, NULL_PTR
);
4480 /* If standard_startfile_prefix is relative, base it on
4481 standard_exec_prefix. This lets us move the installed tree
4482 as a unit. If GCC_EXEC_PREFIX is defined, base
4483 standard_startfile_prefix on that as well. */
4484 if (*standard_startfile_prefix
== '/'
4485 || *standard_startfile_prefix
== DIR_SEPARATOR
)
4486 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, 0, 0,
4490 if (gcc_exec_prefix
)
4491 add_prefix (&startfile_prefixes
,
4492 concat (gcc_exec_prefix
, machine_suffix
,
4493 standard_startfile_prefix
, NULL_PTR
),
4495 add_prefix (&startfile_prefixes
,
4496 concat (standard_exec_prefix
,
4498 standard_startfile_prefix
, NULL_PTR
),
4502 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
, 0, 0,
4504 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
, 0, 0,
4506 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4507 add_prefix (&startfile_prefixes
, "./", 0, 1, NULL_PTR
);
4512 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4513 add_prefix (&startfile_prefixes
,
4514 concat (gcc_exec_prefix
, machine_suffix
,
4515 standard_startfile_prefix
, NULL_PTR
),
4519 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4520 if (gcc_exec_prefix
)
4522 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4523 + strlen (spec_version
)
4524 + strlen (spec_machine
) + 3);
4525 strcpy (temp
, gcc_exec_prefix
);
4526 strcat (temp
, spec_machine
);
4527 strcat (temp
, dir_separator_str
);
4528 strcat (temp
, spec_version
);
4529 strcat (temp
, dir_separator_str
);
4530 gcc_exec_prefix
= temp
;
4533 /* Now we have the specs.
4534 Set the `valid' bits for switches that match anything in any spec. */
4536 validate_all_switches ();
4538 /* Now that we have the switches and the specs, set
4539 the subdirectory based on the options. */
4540 set_multilib_dir ();
4542 /* Warn about any switches that no pass was interested in. */
4544 for (i
= 0; i
< n_switches
; i
++)
4545 if (! switches
[i
].valid
)
4546 error ("unrecognized option `-%s'", switches
[i
].part1
);
4548 /* Obey some of the options. */
4550 if (print_search_dirs
)
4552 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4553 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4554 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4558 if (print_file_name
)
4560 printf ("%s\n", find_file (print_file_name
));
4564 if (print_prog_name
)
4566 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4567 printf ("%s\n", (newname
? newname
: print_prog_name
));
4571 if (print_multi_lib
)
4573 print_multilib_info ();
4577 if (print_multi_directory
)
4579 if (multilib_dir
== NULL
)
4582 printf ("%s\n", multilib_dir
);
4590 /* compiler_version is truncated at the first space when initialized
4591 from version string, so truncate version_string at the first space
4592 before comparing. */
4593 for (n
= 0; version_string
[n
]; n
++)
4594 if (version_string
[n
] == ' ')
4597 if (! strncmp (version_string
, compiler_version
, n
)
4598 && compiler_version
[n
] == 0)
4599 fprintf (stderr
, "gcc version %s\n", version_string
);
4601 fprintf (stderr
, "gcc driver version %s executing gcc version %s\n",
4602 version_string
, compiler_version
);
4609 fatal ("No input files");
4611 /* Make a place to record the compiler output file names
4612 that correspond to the input files. */
4614 outfiles
= (char **) xmalloc (n_infiles
* sizeof (char *));
4615 bzero ((char *) outfiles
, n_infiles
* sizeof (char *));
4617 /* Record which files were specified explicitly as link input. */
4619 explicit_link_files
= xmalloc (n_infiles
);
4620 bzero (explicit_link_files
, n_infiles
);
4622 for (i
= 0; i
< n_infiles
; i
++)
4624 register struct compiler
*cp
= 0;
4625 int this_file_error
= 0;
4627 /* Tell do_spec what to substitute for %i. */
4629 input_filename
= infiles
[i
].name
;
4630 input_filename_length
= strlen (input_filename
);
4631 input_file_number
= i
;
4633 /* Use the same thing in %o, unless cp->spec says otherwise. */
4635 outfiles
[i
] = input_filename
;
4637 /* Figure out which compiler from the file's suffix. */
4639 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
4640 infiles
[i
].language
);
4644 /* Ok, we found an applicable compiler. Run its spec. */
4645 /* First say how much of input_filename to substitute for %b */
4649 if (cp
->spec
[0][0] == '#')
4650 error ("%s: %s compiler not installed on this system",
4651 input_filename
, &cp
->spec
[0][1]);
4653 input_basename
= input_filename
;
4654 for (p
= input_filename
; *p
; p
++)
4655 if (*p
== '/' || *p
== DIR_SEPARATOR
)
4656 input_basename
= p
+ 1;
4658 /* Find a suffix starting with the last period,
4659 and set basename_length to exclude that suffix. */
4660 basename_length
= strlen (input_basename
);
4661 p
= input_basename
+ basename_length
;
4662 while (p
!= input_basename
&& *p
!= '.') --p
;
4663 if (*p
== '.' && p
!= input_basename
)
4665 basename_length
= p
- input_basename
;
4666 input_suffix
= p
+ 1;
4672 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4674 len
+= strlen (cp
->spec
[j
]);
4676 p
= (char *) xmalloc (len
+ 1);
4679 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
4682 strcpy (p
+ len
, cp
->spec
[j
]);
4683 len
+= strlen (cp
->spec
[j
]);
4686 value
= do_spec (p
);
4689 this_file_error
= 1;
4692 /* If this file's name does not contain a recognized suffix,
4693 record it as explicit linker input. */
4696 explicit_link_files
[i
] = 1;
4698 /* Clear the delete-on-failure queue, deleting the files in it
4699 if this compilation failed. */
4701 if (this_file_error
)
4703 delete_failure_queue ();
4706 /* If this compilation succeeded, don't delete those files later. */
4707 clear_failure_queue ();
4710 /* Run ld to link all the compiler output files. */
4712 if (error_count
== 0)
4714 int tmp
= execution_count
;
4718 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4720 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
4721 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
4723 value
= do_spec (link_command_spec
);
4726 linker_was_run
= (tmp
!= execution_count
);
4729 /* Warn if a -B option was specified but the prefix was never used. */
4730 unused_prefix_warnings (&exec_prefixes
);
4731 unused_prefix_warnings (&startfile_prefixes
);
4733 /* If options said don't run linker,
4734 complain about input files to be given to the linker. */
4736 if (! linker_was_run
&& error_count
== 0)
4737 for (i
= 0; i
< n_infiles
; i
++)
4738 if (explicit_link_files
[i
])
4739 error ("%s: linker input file unused since linking not done",
4742 /* Delete some or all of the temporary files we made. */
4745 delete_failure_queue ();
4746 delete_temp_files ();
4748 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
4753 /* Find the proper compilation spec for the file name NAME,
4754 whose length is LENGTH. LANGUAGE is the specified language,
4755 or 0 if none specified. */
4757 static struct compiler
*
4758 lookup_compiler (name
, length
, language
)
4763 struct compiler
*cp
;
4765 /* Look for the language, if one is spec'd. */
4768 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4772 if (cp
->suffix
[0] == '@'
4773 && !strcmp (cp
->suffix
+ 1, language
))
4777 error ("language %s not recognized", language
);
4780 /* Look for a suffix. */
4781 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
4783 if (/* The suffix `-' matches only the file name `-'. */
4784 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
4786 (strlen (cp
->suffix
) < length
4787 /* See if the suffix matches the end of NAME. */
4789 && (!strcmp (cp
->suffix
,
4790 name
+ length
- strlen (cp
->suffix
))
4791 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4792 && !strcasecmp (cp
->suffix
,
4793 name
+ length
- strlen (cp
->suffix
)))))
4795 && !strcmp (cp
->suffix
,
4796 name
+ length
- strlen (cp
->suffix
))))
4799 if (cp
->spec
[0][0] == '@')
4801 struct compiler
*new;
4802 /* An alias entry maps a suffix to a language.
4803 Search for the language; pass 0 for NAME and LENGTH
4804 to avoid infinite recursion if language not found.
4805 Construct the new compiler spec. */
4806 language
= cp
->spec
[0] + 1;
4807 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
4808 new->suffix
= cp
->suffix
;
4809 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
4810 (char *) new->spec
, sizeof new->spec
);
4813 /* A non-alias entry: return it. */
4825 register char *value
= (char *) malloc (size
);
4827 fatal ("virtual memory exhausted");
4832 xrealloc (ptr
, size
)
4836 register char *value
= (char *) realloc (ptr
, size
);
4838 fatal ("virtual memory exhausted");
4842 /* This function is based on the one in libiberty. */
4845 concat
VPROTO((char *first
, ...))
4847 register int length
;
4848 register char *newstr
;
4856 /* First compute the size of the result and get sufficient memory. */
4858 VA_START (args
, first
);
4860 first
= va_arg (args
, char *);
4868 length
+= strlen (arg
);
4869 arg
= va_arg (args
, char *);
4872 newstr
= (char *) xmalloc (length
+ 1);
4875 /* Now copy the individual pieces to the result string. */
4877 VA_START (args
, first
);
4879 first
= va_arg (args
, char *);
4888 arg
= va_arg (args
, char *);
4897 save_string (s
, len
)
4901 register char *result
= xmalloc (len
+ 1);
4903 bcopy (s
, result
, len
);
4909 pfatal_with_name (name
)
4912 fatal ("%s: %s", name
, my_strerror (errno
));
4916 perror_with_name (name
)
4919 error ("%s: %s", name
, my_strerror (errno
));
4923 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
4929 /* Space for trailing '\0' is in %s. */
4930 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
4931 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
4935 fatal ("%s: %s", errmsg_fmt
, my_strerror (errno
));
4938 /* More 'friendly' abort that prints the line and file.
4939 config.h can #define abort fancy_abort if you like that sort of thing. */
4944 fatal ("Internal gcc abort.");
4949 /* Output an error message and exit */
4952 fatal
VPROTO((char *format
, ...))
4959 VA_START (ap
, format
);
4962 format
= va_arg (ap
, char *);
4965 fprintf (stderr
, "%s: ", programname
);
4966 vfprintf (stderr
, format
, ap
);
4968 fprintf (stderr
, "\n");
4969 delete_temp_files ();
4974 error
VPROTO((char *format
, ...))
4981 VA_START (ap
, format
);
4984 format
= va_arg (ap
, char *);
4987 fprintf (stderr
, "%s: ", programname
);
4988 vfprintf (stderr
, format
, ap
);
4991 fprintf (stderr
, "\n");
4994 #else /* not HAVE_VPRINTF */
4997 fatal (msg
, arg1
, arg2
)
4998 char *msg
, *arg1
, *arg2
;
5000 error (msg
, arg1
, arg2
);
5001 delete_temp_files ();
5006 error (msg
, arg1
, arg2
)
5007 char *msg
, *arg1
, *arg2
;
5009 fprintf (stderr
, "%s: ", programname
);
5010 fprintf (stderr
, msg
, arg1
, arg2
);
5011 fprintf (stderr
, "\n");
5014 #endif /* not HAVE_VPRINTF */
5018 validate_all_switches ()
5020 struct compiler
*comp
;
5023 struct spec_list
*spec
;
5025 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5028 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5032 if (c
== '%' && *p
== '{')
5033 /* We have a switch spec. */
5034 validate_switches (p
+ 1);
5038 /* look through the linked list of specs read from the specs file */
5039 for (spec
= specs
; spec
; spec
= spec
->next
)
5041 p
= *(spec
->ptr_spec
);
5043 if (c
== '%' && *p
== '{')
5044 /* We have a switch spec. */
5045 validate_switches (p
+ 1);
5048 p
= link_command_spec
;
5050 if (c
== '%' && *p
== '{')
5051 /* We have a switch spec. */
5052 validate_switches (p
+ 1);
5055 /* Look at the switch-name that comes after START
5056 and mark as valid all supplied switches that match it. */
5059 validate_switches (start
)
5062 register char *p
= start
;
5077 while (*p
!= ':' && *p
!= '}') p
++;
5081 else if (p
[-1] == '*')
5083 /* Mark all matching switches as valid. */
5085 for (i
= 0; i
< n_switches
; i
++)
5086 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5087 switches
[i
].valid
= 1;
5091 /* Mark an exact matching switch as valid. */
5092 for (i
= 0; i
< n_switches
; i
++)
5094 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5095 && switches
[i
].part1
[p
- filter
] == 0)
5096 switches
[i
].valid
= 1;
5101 /* Check whether a particular argument was used. The first time we
5102 canonialize the switches to keep only the ones we care about. */
5116 static struct mswitchstr
*mswitches
;
5117 static int n_mswitches
;
5122 struct mswitchstr
*matches
;
5126 /* Break multilib_matches into the component strings of string and replacement
5128 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5132 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5134 q
= multilib_matches
;
5145 matches
[i
].len
= q
- matches
[i
].str
;
5147 matches
[i
].replace
= ++q
;
5148 while (*q
!= ';' && *q
!= '\0')
5154 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5162 /* Now build a list of the replacement string for switches that we care
5163 about. Make sure we allocate at least one entry. This prevents
5164 xmalloc from calling fatal, and prevents us from re-executing this
5167 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5168 * (n_switches
? n_switches
: 1));
5169 for (i
= 0; i
< n_switches
; i
++)
5171 int xlen
= strlen (switches
[i
].part1
);
5172 for (j
= 0; j
< cnt
; j
++)
5173 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5175 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5176 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5177 mswitches
[n_mswitches
].replace
= (char *)0;
5178 mswitches
[n_mswitches
].rep_len
= 0;
5185 for (i
= 0; i
< n_mswitches
; i
++)
5186 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5193 default_arg (p
, len
)
5200 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5202 while (*start
== ' ' || *start
== '\t')
5208 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5211 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5218 /* Work out the subdirectory to use based on the
5219 options. The format of multilib_select is a list of elements.
5220 Each element is a subdirectory name followed by a list of options
5221 followed by a semicolon. gcc will consider each line in turn. If
5222 none of the options beginning with an exclamation point are
5223 present, and all of the other options are present, that
5224 subdirectory will be used. */
5229 char *p
= multilib_select
;
5231 char *this_path
, *this_arg
;
5237 /* Ignore newlines. */
5244 /* Get the initial path. */
5252 this_path_len
= p
- this_path
;
5254 /* Check the arguments. */
5269 while (*p
!= ' ' && *p
!= ';')
5276 if (*this_arg
!= '!')
5284 /* If this is a default argument, we can just ignore it.
5285 This is true even if this_arg begins with '!'. Beginning
5286 with '!' does not mean that this argument is necessarily
5287 inappropriate for this library: it merely means that
5288 there is a more specific library which uses this
5289 argument. If this argument is a default, we need not
5290 consider that more specific library. */
5291 if (! default_arg (this_arg
, p
- this_arg
))
5293 ok
= used_arg (this_arg
, p
- this_arg
);
5304 if (this_path_len
!= 1
5305 || this_path
[0] != '.')
5307 multilib_dir
= xmalloc (this_path_len
+ 1);
5308 strncpy (multilib_dir
, this_path
, this_path_len
);
5309 multilib_dir
[this_path_len
] = '\0';
5318 /* Print out the multiple library subdirectory selection
5319 information. This prints out a series of lines. Each line looks
5320 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5321 required. Only the desired options are printed out, the negative
5322 matches. The options are print without a leading dash. There are
5323 no spaces to make it easy to use the information in the shell.
5324 Each subdirectory is printed only once. This assumes the ordering
5325 generated by the genmultilib script. */
5328 print_multilib_info ()
5330 char *p
= multilib_select
;
5331 char *last_path
= 0, *this_path
;
5333 int last_path_len
= 0;
5337 /* Ignore newlines. */
5344 /* Get the initial path. */
5353 /* If this is a duplicate, skip it. */
5354 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5355 && ! strncmp (last_path
, this_path
, last_path_len
));
5357 last_path
= this_path
;
5358 last_path_len
= p
- this_path
;
5360 /* If this directory requires any default arguments, we can skip
5361 it. We will already have printed a directory identical to
5362 this one which does not require that default argument. */
5380 while (*q
!= ' ' && *q
!= ';')
5388 && default_arg (arg
, q
- arg
))
5403 for (p1
= last_path
; p1
< p
; p1
++)
5422 use_arg
= *p
!= '!';
5427 while (*p
!= ' ' && *p
!= ';')
5442 /* If there are extra options, print them now */
5443 if (multilib_extra
&& *multilib_extra
)
5445 int print_at
= TRUE
;
5448 for (q
= multilib_extra
; *q
!= '\0'; q
++)