1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
51 extern int getrusage PARAMS ((int, struct rusage *));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str[] = { DIR_SEPARATOR, 0 };
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes;
103 /* Definition of string containing the arguments given to configure. */
104 #include "configargs.h"
106 /* Flag saying to print the directories gcc will search through looking for
107 programs, libraries, etc. */
109 static int print_search_dirs;
111 /* Flag saying to print the full filename of this file
112 as found through our usual search mechanism. */
114 static const char *print_file_name = NULL;
116 /* As print_file_name, but search for executable file. */
118 static const char *print_prog_name = NULL;
120 /* Flag saying to print the relative path we'd use to
121 find libgcc.a given the current compiler flags. */
123 static int print_multi_directory;
125 /* Flag saying to print the list of subdirectories and
126 compiler flags used to select them in a standard form. */
128 static int print_multi_lib;
130 /* Flag saying to print the command line options understood by gcc and its
133 static int print_help_list;
135 /* Flag indicating whether we should print the command and arguments */
137 static int verbose_flag;
139 /* Flag indicating to print target specific command line options. */
141 static int target_help_flag;
143 /* Flag indicating whether we should report subprocess execution times
144 (if this is supported by the system - see pexecute.c). */
146 static int report_times;
148 /* Nonzero means write "temp" files in source directory
149 and use the source file's name in them, and don't delete them. */
151 static int save_temps_flag;
153 /* The compiler version. */
155 static const char *compiler_version;
157 /* The target version specified with -V */
159 static const char *spec_version = DEFAULT_TARGET_VERSION;
161 /* The target machine specified with -b. */
163 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
165 /* Nonzero if cross-compiling.
166 When -b is used, the value comes from the `specs' file. */
169 static const char *cross_compile = "1";
171 static const char *cross_compile = "0";
174 #ifdef MODIFY_TARGET_NAME
176 /* Information on how to alter the target name based on a command-line
177 switch. The only case we support now is simply appending or deleting a
178 string to or from the end of the first part of the configuration name. */
183 enum add_del {ADD, DELETE} add_del;
186 modify_target[] = MODIFY_TARGET_NAME;
189 /* The number of errors that have occurred; the link phase will not be
190 run if this is non-zero. */
191 static int error_count = 0;
193 /* Greatest exit code of sub-processes that has been encountered up to
195 static int greatest_status = 1;
197 /* This is the obstack which we use to allocate many strings. */
199 static struct obstack obstack;
201 /* This is the obstack to build an environment variable to pass to
202 collect2 that describes all of the relevant switches of what to
203 pass the compiler in building the list of pointers to constructors
206 static struct obstack collect_obstack;
208 /* These structs are used to collect resource usage information for
210 #ifdef HAVE_GETRUSAGE
211 static struct rusage rus, prus;
214 /* Forward declaration for prototypes. */
217 static void init_spec PARAMS ((void));
219 static char **split_directories PARAMS ((const char *, int *));
220 static void free_split_directories PARAMS ((char **));
221 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
223 static void store_arg PARAMS ((const char *, int, int));
224 static char *load_specs PARAMS ((const char *));
225 static void read_specs PARAMS ((const char *, int));
226 static void set_spec PARAMS ((const char *, const char *));
227 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
228 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
229 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
230 static int access_check PARAMS ((const char *, int));
231 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
232 static void add_prefix PARAMS ((struct path_prefix *, const char *,
233 const char *, int, int, int *));
234 static void translate_options PARAMS ((int *, const char *const **));
235 static char *skip_whitespace PARAMS ((char *));
236 static void record_temp_file PARAMS ((const char *, int, int));
237 static void delete_if_ordinary PARAMS ((const char *));
238 static void delete_temp_files PARAMS ((void));
239 static void delete_failure_queue PARAMS ((void));
240 static void clear_failure_queue PARAMS ((void));
241 static int check_live_switch PARAMS ((int, int));
242 static const char *handle_braces PARAMS ((const char *));
243 static char *save_string PARAMS ((const char *, int));
244 static int do_spec_1 PARAMS ((const char *, int, const char *));
245 static const char *find_file PARAMS ((const char *));
246 static int is_directory PARAMS ((const char *, const char *, int));
247 static void validate_switches PARAMS ((const char *));
248 static void validate_all_switches PARAMS ((void));
249 static void give_switch PARAMS ((int, int, int));
250 static int used_arg PARAMS ((const char *, int));
251 static int default_arg PARAMS ((const char *, int));
252 static void set_multilib_dir PARAMS ((void));
253 static void print_multilib_info PARAMS ((void));
254 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
255 static void perror_with_name PARAMS ((const char *));
256 static void pfatal_pexecute PARAMS ((const char *, const char *))
258 static void error PARAMS ((const char *, ...))
260 static void notice PARAMS ((const char *, ...))
262 static void display_help PARAMS ((void));
263 static void add_preprocessor_option PARAMS ((const char *, int));
264 static void add_assembler_option PARAMS ((const char *, int));
265 static void add_linker_option PARAMS ((const char *, int));
266 static void process_command PARAMS ((int, const char *const *));
267 static int execute PARAMS ((void));
268 static void clear_args PARAMS ((void));
269 static void fatal_error PARAMS ((int));
270 static void set_input PARAMS ((const char *));
272 /* Specs are strings containing lines, each of which (if not blank)
273 is made up of a program name, and arguments separated by spaces.
274 The program name must be exact and start from root, since no path
275 is searched and it is unreliable to depend on the current working directory.
276 Redirection of input or output is not supported; the subprograms must
277 accept filenames saying what files to read and write.
279 In addition, the specs can contain %-sequences to substitute variable text
280 or for conditional text. Here is a table of all defined %-sequences.
281 Note that spaces are not generated automatically around the results of
282 expanding these sequences; therefore, you can concatenate them together
283 or with constant text in a single argument.
285 %% substitute one % into the program name or argument.
286 %i substitute the name of the input file being processed.
287 %b substitute the basename of the input file being processed.
288 This is the substring up to (and not including) the last period
289 and not including the directory.
290 %B same as %b, but include the file suffix (text after the last period).
292 substitute a file name that has suffix SUFFIX and is chosen
293 once per compilation, and mark the argument a la %d. To reduce
294 exposure to denial-of-service attacks, the file name is now
295 chosen in a way that is hard to predict even when previously
296 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
297 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
298 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
299 had been pre-processed. Previously, %g was simply substituted
300 with a file name chosen once per compilation, without regard
301 to any appended suffix (which was therefore treated just like
302 ordinary text), making such attacks more likely to succeed.
304 like %g, but generates a new temporary file name even if %uSUFFIX
307 substitutes the last file name generated with %uSUFFIX, generating a
308 new one if there is no such last file name. In the absence of any
309 %uSUFFIX, this is just like %gSUFFIX, except they don't share
310 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
311 would involve the generation of two distinct file names, one
312 for each `%g.s' and another for each `%U.s'. Previously, %U was
313 simply substituted with a file name chosen for the previous %u,
314 without regard to any appended suffix.
316 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
317 writable, and if save-temps is off; otherwise, substitute the name
318 of a temporary file, just like %u. This temporary file is not
319 meant for communication between processes, but rather as a junk
321 %d marks the argument containing or following the %d as a
322 temporary file name, so that that file will be deleted if CC exits
323 successfully. Unlike %g, this contributes no text to the argument.
324 %w marks the argument containing or following the %w as the
325 "output file" of this compilation. This puts the argument
326 into the sequence of arguments that %o will substitute later.
328 like %{...} but mark last argument supplied within
329 as a file to be deleted on failure.
330 %o substitutes the names of all the output files, with spaces
331 automatically placed around them. You should write spaces
332 around the %o as well or the results are undefined.
333 %o is for use in the specs for running the linker.
334 Input files whose names have no recognized suffix are not compiled
335 at all, but they are included among the output files, so they will
337 %O substitutes the suffix for object files. Note that this is
338 handled specially when it immediately follows %g, %u, or %U
339 (with or without a suffix argument) because of the need for
340 those to form complete file names. The handling is such that
341 %O is treated exactly as if it had already been substituted,
342 except that %g, %u, and %U do not currently support additional
343 SUFFIX characters following %O as they would following, for
345 %p substitutes the standard macro predefinitions for the
346 current target machine. Use this when running cpp.
347 %P like %p, but puts `__' before and after the name of each macro.
348 (Except macros that already have __.)
350 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
351 %s current argument is the name of a library or startup file of some sort.
352 Search for that file in a standard list of directories
353 and substitute the full name found.
354 %eSTR Print STR as an error message. STR is terminated by a newline.
355 Use this when inconsistent options are detected.
356 %x{OPTION} Accumulate an option for %X.
357 %X Output the accumulated linker options specified by compilations.
358 %Y Output the accumulated assembler options specified by compilations.
359 %Z Output the accumulated preprocessor options specified by compilations.
360 %v1 Substitute the major version number of GCC.
361 (For version 2.5.3, this is 2.)
362 %v2 Substitute the minor version number of GCC.
363 (For version 2.5.3, this is 5.)
364 %v3 Substitute the patch level number of GCC.
365 (For version 2.5.3, this is 3.)
366 %a process ASM_SPEC as a spec.
367 This allows config.h to specify part of the spec for running as.
368 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
369 used here. This can be used to run a post-processor after the
370 assembler has done its job.
371 %D Dump out a -L option for each directory in startfile_prefixes.
372 If multilib_dir is set, extra entries are generated with it affixed.
373 %l process LINK_SPEC as a spec.
374 %L process LIB_SPEC as a spec.
375 %G process LIBGCC_SPEC as a spec.
376 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
377 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
378 %c process SIGNED_CHAR_SPEC as a spec.
379 %C process CPP_SPEC as a spec. A capital C is actually used here.
380 %1 process CC1_SPEC as a spec.
381 %2 process CC1PLUS_SPEC as a spec.
382 %| output "-" if the input for the current command is coming from a pipe.
383 %* substitute the variable part of a matched option. (See below.)
384 Note that each comma in the substituted string is replaced by
386 %{S} substitutes the -S switch, if that switch was given to CC.
387 If that switch was not specified, this substitutes nothing.
388 Here S is a metasyntactic variable.
389 %{S*} substitutes all the switches specified to CC whose names start
390 with -S. This is used for -o, -D, -I, etc; switches that take
391 arguments. CC considers `-o foo' as being one switch whose
392 name starts with `o'. %{o*} would substitute this text,
393 including the space; thus, two arguments would be generated.
394 %{^S*} likewise, but don't put a blank between a switch and any args.
395 %{S*:X} substitutes X if one or more switches whose names start with -S are
396 specified to CC. Note that the tail part of the -S option
397 (i.e. the part matched by the `*') will be substituted for each
398 occurrence of %* within X.
399 %{<S} remove all occurences of -S from the command line.
400 Note - this option is position dependent. % commands in the
401 spec string before this option will see -S, % commands in the
402 spec string after this option will not.
403 %{S:X} substitutes X, but only if the -S switch was given to CC.
404 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
405 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
406 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
407 %{.S:X} substitutes X, but only if processing a file with suffix S.
408 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
409 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
410 combined with ! and . as above binding stronger than the OR.
411 %(Spec) processes a specification defined in a specs file as *Spec:
412 %[Spec] as above, but put __ around -D arguments
414 The conditional text X in a %{S:X} or %{!S:X} construct may contain
415 other nested % constructs or spaces, or even newlines. They are
416 processed as usual, as described above.
418 The -O, -f, -m, and -W switches are handled specifically in these
419 constructs. If another value of -O or the negated form of a -f, -m, or
420 -W switch is found later in the command line, the earlier switch
421 value is ignored, except with {S*} where S is just one letter; this
422 passes all matching options.
424 The character | at the beginning of the predicate text is used to indicate
425 that a command should be piped to the following command, but only if -pipe
428 Note that it is built into CC which switches take arguments and which
429 do not. You might think it would be useful to generalize this to
430 allow each compiler's spec to say which switches take arguments. But
431 this cannot be done in a consistent fashion. CC cannot even decide
432 which input files have been specified without knowing which switches
433 take arguments, and it must know which input files to compile in order
434 to tell which compilers to run.
436 CC also knows implicitly that arguments starting in `-l' are to be
437 treated as compiler output files, and passed to the linker in their
438 proper position among the other output files. */
440 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
442 /* config.h can define ASM_SPEC to provide extra args to the assembler
443 or extra switch-translations. */
448 /* config.h can define ASM_FINAL_SPEC to run a post processor after
449 the assembler has run. */
450 #ifndef ASM_FINAL_SPEC
451 #define ASM_FINAL_SPEC ""
454 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
455 or extra switch-translations. */
460 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
461 or extra switch-translations. */
466 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
467 or extra switch-translations. */
469 #define CC1PLUS_SPEC ""
472 /* config.h can define LINK_SPEC to provide extra args to the linker
473 or extra switch-translations. */
478 /* config.h can define LIB_SPEC to override the default libraries. */
480 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
483 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
486 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
487 /* Have gcc do the search for libgcc.a. */
488 #define LIBGCC_SPEC "libgcc.a%s"
490 #define LIBGCC_SPEC "-lgcc"
494 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
495 #ifndef STARTFILE_SPEC
496 #define STARTFILE_SPEC \
497 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
500 /* config.h can define SWITCHES_NEED_SPACES to control which options
501 require spaces between the option and the argument. */
502 #ifndef SWITCHES_NEED_SPACES
503 #define SWITCHES_NEED_SPACES ""
506 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
508 #define ENDFILE_SPEC ""
511 /* This spec is used for telling cpp whether char is signed or not. */
512 #ifndef SIGNED_CHAR_SPEC
513 /* Use #if rather than ?:
514 because MIPS C compiler rejects like ?: in initializers. */
515 #if DEFAULT_SIGNED_CHAR
516 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
518 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
523 #define LINKER_NAME "collect2"
526 /* Here is the spec for running the linker, after compiling all files. */
528 /* -u* was put back because both BSD and SysV seem to support it. */
529 /* %{static:} simply prevents an error message if the target machine
530 doesn't handle -static. */
531 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
532 scripts which exist in user specified directories, or in standard
534 #ifndef LINK_COMMAND_SPEC
535 #define LINK_COMMAND_SPEC "\
536 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
537 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
538 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
539 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
540 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
543 #ifndef LINK_LIBGCC_SPEC
544 # ifdef LINK_LIBGCC_SPECIAL
545 /* Don't generate -L options for startfile prefix list. */
546 # define LINK_LIBGCC_SPEC ""
548 /* Do generate them. */
549 # define LINK_LIBGCC_SPEC "%D"
553 static const char *cpp_spec = CPP_SPEC;
554 static const char *cpp_predefines = CPP_PREDEFINES;
555 static const char *cc1_spec = CC1_SPEC;
556 static const char *cc1plus_spec = CC1PLUS_SPEC;
557 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
558 static const char *asm_spec = ASM_SPEC;
559 static const char *asm_final_spec = ASM_FINAL_SPEC;
560 static const char *link_spec = LINK_SPEC;
561 static const char *lib_spec = LIB_SPEC;
562 static const char *libgcc_spec = LIBGCC_SPEC;
563 static const char *endfile_spec = ENDFILE_SPEC;
564 static const char *startfile_spec = STARTFILE_SPEC;
565 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
566 static const char *linker_name_spec = LINKER_NAME;
567 static const char *link_command_spec = LINK_COMMAND_SPEC;
568 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
570 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
571 There should be no need to override these in target dependent files,
572 but we need to copy them to the specs file so that newer versions
573 of the GCC driver can correctly drive older tool chains with the
574 appropriate -B options. */
576 static const char *trad_capable_cpp =
577 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
579 static const char *cpp_options =
580 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
581 %{std*} %{nostdinc*}\
582 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
583 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
584 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
585 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
586 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
587 %{ffast-math:-D__FAST_MATH__}\
588 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
589 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
590 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
591 %{fshow-column} %{fno-show-column}\
592 %{fleading-underscore} %{fno-leading-underscore}\
594 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{U*} %{D*} %{i*} %Z %i\
595 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
597 /* NB: This is shared amongst all front-ends. */
598 static const char *cc1_options =
599 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
600 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
601 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
602 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
603 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
604 %{--target-help:--target-help}\
605 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
606 %{fsyntax-only:-o %j}";
608 static const char *asm_options =
609 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
611 static const char *invoke_as =
612 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
614 /* Some compilers have limits on line lengths, and the multilib_select
615 and/or multilib_matches strings can be very long, so we build them at
617 static struct obstack multilib_obstack;
618 static const char *multilib_select;
619 static const char *multilib_matches;
620 static const char *multilib_defaults;
621 static const char *multilib_exclusions;
622 #include "multilib.h"
624 /* Check whether a particular argument is a default argument. */
626 #ifndef MULTILIB_DEFAULTS
627 #define MULTILIB_DEFAULTS { "" }
630 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
634 struct user_specs *next;
635 const char *filename;
638 static struct user_specs *user_specs_head, *user_specs_tail;
640 /* This defines which switch letters take arguments. */
642 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
643 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
644 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
645 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
646 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
647 || (CHAR) == 'B' || (CHAR) == 'b')
649 #ifndef SWITCH_TAKES_ARG
650 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
653 /* This defines which multi-letter switches take arguments. */
655 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
656 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
657 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
658 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
659 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
660 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
661 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
662 || !strcmp (STR, "MF") || !strcmp (STR, "MT"))
664 #ifndef WORD_SWITCH_TAKES_ARG
665 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
668 #ifdef HAVE_EXECUTABLE_SUFFIX
669 /* This defines which switches stop a full compilation. */
670 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
671 ((CHAR) == 'c' || (CHAR) == 'S')
673 #ifndef SWITCH_CURTAILS_COMPILATION
674 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
675 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
679 /* Record the mapping from file suffixes for compilation specs. */
683 const char *suffix; /* Use this compiler for input files
684 whose names end in this suffix. */
686 const char *spec; /* To use this compiler, run this spec. */
689 /* Pointer to a vector of `struct compiler' that gives the spec for
690 compiling a file, based on its suffix.
691 A file that does not end in any of these suffixes will be passed
692 unchanged to the loader and nothing else will be done to it.
694 An entry containing two 0s is used to terminate the vector.
696 If multiple entries match a file, the last matching one is used. */
698 static struct compiler *compilers;
700 /* Number of entries in `compilers', not counting the null terminator. */
702 static int n_compilers;
704 /* The default list of file name suffixes and their compilation specs. */
706 static struct compiler default_compilers[] =
708 /* Add lists of suffixes of known languages here. If those languages
709 were not present when we built the driver, we will hit these copies
710 and be given a more meaningful error than "file not used since
711 linking is not done". */
712 {".m", "#Objective-C"},
713 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
714 {".c++", "#C++"}, {".C", "#C++"},
715 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
716 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
717 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
718 {".p", "#Pascal"}, {".pas", "#Pascal"},
719 {".ch", "#Chill"}, {".chi", "#Chill"},
720 {".java", "#Java"}, {".class", "#Java"},
721 {".zip", "#Java"}, {".jar", "#Java"},
722 /* Next come the entries for C. */
725 /* cc1 has an integrated ISO C preprocessor. We should invoke the
726 external preprocessor if -save-temps or -traditional is given. */
727 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
729 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
730 %(cpp_options) %b.i \n\
731 cc1 -fpreprocessed %b.i %(cc1_options)}\
733 %{traditional|ftraditional|traditional-cpp:\
734 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
735 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
736 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
737 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
738 %{!fsyntax-only:%(invoke_as)}}}}"},
740 "%{!E:%e-E required when input is from standard input}\
741 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
744 "%{!E:%eCompilation of header file requested} \
745 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
746 {".i", "@cpp-output"},
748 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
749 {".s", "@assembler"},
751 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
752 {".S", "@assembler-with-cpp"},
753 {"@assembler-with-cpp",
754 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
755 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
757 /* Mark end of table */
761 /* Number of elements in default_compilers, not counting the terminator. */
763 static int n_default_compilers
764 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
766 /* A vector of options to give to the linker.
767 These options are accumulated by %x,
768 and substituted into the linker command with %X. */
769 static int n_linker_options;
770 static char **linker_options;
772 /* A vector of options to give to the assembler.
773 These options are accumulated by -Wa,
774 and substituted into the assembler command with %Y. */
775 static int n_assembler_options;
776 static char **assembler_options;
778 /* A vector of options to give to the preprocessor.
779 These options are accumulated by -Wp,
780 and substituted into the preprocessor command with %Z. */
781 static int n_preprocessor_options;
782 static char **preprocessor_options;
784 /* Define how to map long options into short ones. */
786 /* This structure describes one mapping. */
789 /* The long option's name. */
791 /* The equivalent short option. */
792 const char *equivalent;
793 /* Argument info. A string of flag chars; NULL equals no options.
794 a => argument required.
795 o => argument optional.
796 j => join argument to equivalent, making one word.
797 * => require other text after NAME as an argument. */
798 const char *arg_info;
801 /* This is the table of mappings. Mappings are tried sequentially
802 for each option encountered; the first one that matches, wins. */
804 struct option_map option_map[] =
806 {"--all-warnings", "-Wall", 0},
807 {"--ansi", "-ansi", 0},
808 {"--assemble", "-S", 0},
809 {"--assert", "-A", "a"},
810 {"--classpath", "-fclasspath=", "aj"},
811 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
812 {"--comments", "-C", 0},
813 {"--compile", "-c", 0},
814 {"--debug", "-g", "oj"},
815 {"--define-macro", "-D", "aj"},
816 {"--dependencies", "-M", 0},
817 {"--dump", "-d", "a"},
818 {"--dumpbase", "-dumpbase", "a"},
819 {"--entry", "-e", 0},
820 {"--extra-warnings", "-W", 0},
821 {"--for-assembler", "-Wa", "a"},
822 {"--for-linker", "-Xlinker", "a"},
823 {"--force-link", "-u", "a"},
824 {"--imacros", "-imacros", "a"},
825 {"--include", "-include", "a"},
826 {"--include-barrier", "-I-", 0},
827 {"--include-directory", "-I", "aj"},
828 {"--include-directory-after", "-idirafter", "a"},
829 {"--include-prefix", "-iprefix", "a"},
830 {"--include-with-prefix", "-iwithprefix", "a"},
831 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
832 {"--include-with-prefix-after", "-iwithprefix", "a"},
833 {"--language", "-x", "a"},
834 {"--library-directory", "-L", "a"},
835 {"--machine", "-m", "aj"},
836 {"--machine-", "-m", "*j"},
837 {"--no-line-commands", "-P", 0},
838 {"--no-precompiled-includes", "-noprecomp", 0},
839 {"--no-standard-includes", "-nostdinc", 0},
840 {"--no-standard-libraries", "-nostdlib", 0},
841 {"--no-warnings", "-w", 0},
842 {"--optimize", "-O", "oj"},
843 {"--output", "-o", "a"},
844 {"--output-class-directory", "-foutput-class-dir=", "ja"},
845 {"--pedantic", "-pedantic", 0},
846 {"--pedantic-errors", "-pedantic-errors", 0},
847 {"--pipe", "-pipe", 0},
848 {"--prefix", "-B", "a"},
849 {"--preprocess", "-E", 0},
850 {"--print-search-dirs", "-print-search-dirs", 0},
851 {"--print-file-name", "-print-file-name=", "aj"},
852 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
853 {"--print-missing-file-dependencies", "-MG", 0},
854 {"--print-multi-lib", "-print-multi-lib", 0},
855 {"--print-multi-directory", "-print-multi-directory", 0},
856 {"--print-prog-name", "-print-prog-name=", "aj"},
857 {"--profile", "-p", 0},
858 {"--profile-blocks", "-a", 0},
859 {"--quiet", "-q", 0},
860 {"--save-temps", "-save-temps", 0},
861 {"--shared", "-shared", 0},
862 {"--silent", "-q", 0},
863 {"--specs", "-specs=", "aj"},
864 {"--static", "-static", 0},
865 {"--std", "-std=", "aj"},
866 {"--symbolic", "-symbolic", 0},
867 {"--target", "-b", "a"},
868 {"--time", "-time", 0},
869 {"--trace-includes", "-H", 0},
870 {"--traditional", "-traditional", 0},
871 {"--traditional-cpp", "-traditional-cpp", 0},
872 {"--trigraphs", "-trigraphs", 0},
873 {"--undefine-macro", "-U", "aj"},
874 {"--use-version", "-V", "a"},
875 {"--user-dependencies", "-MM", 0},
876 {"--verbose", "-v", 0},
877 {"--version", "-dumpversion", 0},
878 {"--warn-", "-W", "*j"},
879 {"--write-dependencies", "-MD", 0},
880 {"--write-user-dependencies", "-MMD", 0},
884 /* Translate the options described by *ARGCP and *ARGVP.
885 Make a new vector and store it back in *ARGVP,
886 and store its length in *ARGVC. */
889 translate_options (argcp, argvp)
891 const char *const **argvp;
895 const char *const *argv = *argvp;
897 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
901 newv[newindex++] = argv[i++];
905 /* Translate -- options. */
906 if (argv[i][0] == '-' && argv[i][1] == '-')
909 /* Find a mapping that applies to this option. */
910 for (j = 0; j < ARRAY_SIZE (option_map); j++)
912 size_t optlen = strlen (option_map[j].name);
913 size_t arglen = strlen (argv[i]);
914 size_t complen = arglen > optlen ? optlen : arglen;
915 const char *arginfo = option_map[j].arg_info;
920 if (!strncmp (argv[i], option_map[j].name, complen))
927 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
928 if (strlen (option_map[k].name) >= arglen
929 && !strncmp (argv[i], option_map[k].name, arglen))
931 error ("Ambiguous abbreviation %s", argv[i]);
935 if (k != ARRAY_SIZE (option_map))
941 /* If the option has an argument, accept that. */
942 if (argv[i][optlen] == '=')
943 arg = argv[i] + optlen + 1;
945 /* If this mapping requires extra text at end of name,
946 accept that as "argument". */
947 else if (strchr (arginfo, '*') != 0)
948 arg = argv[i] + optlen;
950 /* Otherwise, extra text at end means mismatch.
951 Try other mappings. */
956 else if (strchr (arginfo, '*') != 0)
958 error ("Incomplete `%s' option", option_map[j].name);
962 /* Handle arguments. */
963 if (strchr (arginfo, 'a') != 0)
969 error ("Missing argument to `%s' option",
977 else if (strchr (arginfo, '*') != 0)
979 else if (strchr (arginfo, 'o') == 0)
982 error ("Extraneous argument to `%s' option",
987 /* Store the translation as one argv elt or as two. */
988 if (arg != 0 && strchr (arginfo, 'j') != 0)
989 newv[newindex++] = concat (option_map[j].equivalent, arg,
993 newv[newindex++] = option_map[j].equivalent;
994 newv[newindex++] = arg;
997 newv[newindex++] = option_map[j].equivalent;
1005 /* Handle old-fashioned options--just copy them through,
1006 with their arguments. */
1007 else if (argv[i][0] == '-')
1009 const char *p = argv[i] + 1;
1013 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1014 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1015 else if (WORD_SWITCH_TAKES_ARG (p))
1016 nskip += WORD_SWITCH_TAKES_ARG (p);
1017 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1020 else if (! strcmp (p, "Xlinker"))
1023 /* Watch out for an option at the end of the command line that
1024 is missing arguments, and avoid skipping past the end of the
1026 if (nskip + i > argc)
1031 newv[newindex++] = argv[i++];
1036 /* Ordinary operands, or +e options. */
1037 newv[newindex++] = argv[i++];
1052 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1053 be considered whitespace. */
1054 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1056 else if (*p == '\n' || *p == ' ' || *p == '\t')
1070 /* Structures to keep track of prefixes to try when looking for files. */
1074 char *prefix; /* String to prepend to the path. */
1075 struct prefix_list *next; /* Next in linked list. */
1076 int require_machine_suffix; /* Don't use without machine_suffix. */
1077 /* 2 means try both machine_suffix and just_machine_suffix. */
1078 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1079 int priority; /* Sort key - priority within list */
1084 struct prefix_list *plist; /* List of prefixes to try */
1085 int max_len; /* Max length of a prefix in PLIST */
1086 const char *name; /* Name of this list (used in config stuff) */
1089 /* List of prefixes to try when looking for executables. */
1091 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1093 /* List of prefixes to try when looking for startup (crt0) files. */
1095 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1097 /* List of prefixes to try when looking for include files. */
1099 static struct path_prefix include_prefixes = { 0, 0, "include" };
1101 /* Suffix to attach to directories searched for commands.
1102 This looks like `MACHINE/VERSION/'. */
1104 static const char *machine_suffix = 0;
1106 /* Suffix to attach to directories searched for commands.
1107 This is just `MACHINE/'. */
1109 static const char *just_machine_suffix = 0;
1111 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1113 static const char *gcc_exec_prefix;
1115 /* Default prefixes to attach to command names. */
1117 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1118 #undef MD_EXEC_PREFIX
1119 #undef MD_STARTFILE_PREFIX
1120 #undef MD_STARTFILE_PREFIX_1
1123 /* If no prefixes defined, use the null string, which will disable them. */
1124 #ifndef MD_EXEC_PREFIX
1125 #define MD_EXEC_PREFIX ""
1127 #ifndef MD_STARTFILE_PREFIX
1128 #define MD_STARTFILE_PREFIX ""
1130 #ifndef MD_STARTFILE_PREFIX_1
1131 #define MD_STARTFILE_PREFIX_1 ""
1134 /* Supply defaults for the standard prefixes. */
1136 #ifndef STANDARD_EXEC_PREFIX
1137 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1139 #ifndef STANDARD_STARTFILE_PREFIX
1140 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1142 #ifndef TOOLDIR_BASE_PREFIX
1143 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1145 #ifndef STANDARD_BINDIR_PREFIX
1146 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1149 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1150 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1151 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1153 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1154 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1155 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1156 static const char *standard_startfile_prefix_1 = "/lib/";
1157 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1159 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1160 static const char *tooldir_prefix;
1162 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1164 /* Subdirectory to use for locating libraries. Set by
1165 set_multilib_dir based on the compilation options. */
1167 static const char *multilib_dir;
1169 /* Structure to keep track of the specs that have been defined so far.
1170 These are accessed using %(specname) or %[specname] in a compiler
1175 /* The following 2 fields must be first */
1176 /* to allow EXTRA_SPECS to be initialized */
1177 const char *name; /* name of the spec. */
1178 const char *ptr; /* available ptr if no static pointer */
1180 /* The following fields are not initialized */
1181 /* by EXTRA_SPECS */
1182 const char **ptr_spec; /* pointer to the spec itself. */
1183 struct spec_list *next; /* Next spec in linked list. */
1184 int name_len; /* length of the name */
1185 int alloc_p; /* whether string was allocated */
1188 #define INIT_STATIC_SPEC(NAME,PTR) \
1189 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1191 /* List of statically defined specs. */
1192 static struct spec_list static_specs[] =
1194 INIT_STATIC_SPEC ("asm", &asm_spec),
1195 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1196 INIT_STATIC_SPEC ("asm_options", &asm_options),
1197 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1198 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1199 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1200 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1201 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1202 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1203 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1204 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1205 INIT_STATIC_SPEC ("link", &link_spec),
1206 INIT_STATIC_SPEC ("lib", &lib_spec),
1207 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1208 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1209 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1210 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1211 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1212 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1213 INIT_STATIC_SPEC ("version", &compiler_version),
1214 INIT_STATIC_SPEC ("multilib", &multilib_select),
1215 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1216 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1217 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1218 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1219 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1220 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1221 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1222 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1223 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1226 #ifdef EXTRA_SPECS /* additional specs needed */
1227 /* Structure to keep track of just the first two args of a spec_list.
1228 That is all that the EXTRA_SPECS macro gives us. */
1235 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1236 static struct spec_list *extra_specs = (struct spec_list *) 0;
1239 /* List of dynamically allocates specs that have been defined so far. */
1241 static struct spec_list *specs = (struct spec_list *) 0;
1243 /* Initialize the specs lookup routines. */
1248 struct spec_list *next = (struct spec_list *) 0;
1249 struct spec_list *sl = (struct spec_list *) 0;
1253 return; /* Already initialized. */
1256 notice ("Using builtin specs.\n");
1259 extra_specs = (struct spec_list *)
1260 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1262 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1264 sl = &extra_specs[i];
1265 sl->name = extra_specs_1[i].name;
1266 sl->ptr = extra_specs_1[i].ptr;
1268 sl->name_len = strlen (sl->name);
1269 sl->ptr_spec = &sl->ptr;
1274 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1276 sl = &static_specs[i];
1284 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1285 removed; If the spec starts with a + then SPEC is added to the end of the
1289 set_spec (name, spec)
1293 struct spec_list *sl;
1294 const char *old_spec;
1295 int name_len = strlen (name);
1298 /* If this is the first call, initialize the statically allocated specs. */
1301 struct spec_list *next = (struct spec_list *) 0;
1302 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1304 sl = &static_specs[i];
1311 /* See if the spec already exists. */
1312 for (sl = specs; sl; sl = sl->next)
1313 if (name_len == sl->name_len && !strcmp (sl->name, name))
1318 /* Not found - make it. */
1319 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1320 sl->name = xstrdup (name);
1321 sl->name_len = name_len;
1322 sl->ptr_spec = &sl->ptr;
1324 *(sl->ptr_spec) = "";
1329 old_spec = *(sl->ptr_spec);
1330 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1331 ? concat (old_spec, spec + 1, NULL_PTR)
1336 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1339 /* Free the old spec. */
1340 if (old_spec && sl->alloc_p)
1341 free ((PTR) old_spec);
1346 /* Accumulate a command (program name and args), and run it. */
1348 /* Vector of pointers to arguments in the current line of specifications. */
1350 static const char **argbuf;
1352 /* Number of elements allocated in argbuf. */
1354 static int argbuf_length;
1356 /* Number of elements in argbuf currently in use (containing args). */
1358 static int argbuf_index;
1360 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1361 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1364 static struct temp_name {
1365 const char *suffix; /* suffix associated with the code. */
1366 int length; /* strlen (suffix). */
1367 int unique; /* Indicates whether %g or %u/%U was used. */
1368 const char *filename; /* associated filename. */
1369 int filename_length; /* strlen (filename). */
1370 struct temp_name *next;
1373 /* Number of commands executed so far. */
1375 static int execution_count;
1377 /* Number of commands that exited with a signal. */
1379 static int signal_count;
1381 /* Name with which this program was invoked. */
1383 static const char *programname;
1385 /* Clear out the vector of arguments (after a command is executed). */
1393 /* Add one argument to the vector at the end.
1394 This is done when a space is seen or at the end of the line.
1395 If DELETE_ALWAYS is nonzero, the arg is a filename
1396 and the file should be deleted eventually.
1397 If DELETE_FAILURE is nonzero, the arg is a filename
1398 and the file should be deleted if this compilation fails. */
1401 store_arg (arg, delete_always, delete_failure)
1403 int delete_always, delete_failure;
1405 if (argbuf_index + 1 == argbuf_length)
1407 = (const char **) xrealloc (argbuf,
1408 (argbuf_length *= 2) * sizeof (const char *));
1410 argbuf[argbuf_index++] = arg;
1411 argbuf[argbuf_index] = 0;
1413 if (delete_always || delete_failure)
1414 record_temp_file (arg, delete_always, delete_failure);
1417 /* Load specs from a file name named FILENAME, replacing occurances of
1418 various different types of line-endings, \r\n, \n\r and just \r, with
1422 load_specs (filename)
1423 const char *filename;
1427 struct stat statbuf;
1434 notice ("Reading specs from %s\n", filename);
1436 /* Open and stat the file. */
1437 desc = open (filename, O_RDONLY, 0);
1439 pfatal_with_name (filename);
1440 if (stat (filename, &statbuf) < 0)
1441 pfatal_with_name (filename);
1443 /* Read contents of file into BUFFER. */
1444 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1445 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1447 pfatal_with_name (filename);
1448 buffer[readlen] = 0;
1451 specs = xmalloc (readlen + 1);
1453 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1459 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1461 else if (*(buffer_p + 1) == '\n') /* \r\n */
1475 /* Read compilation specs from a file named FILENAME,
1476 replacing the default ones.
1478 A suffix which starts with `*' is a definition for
1479 one of the machine-specific sub-specs. The "suffix" should be
1480 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1481 The corresponding spec is stored in asm_spec, etc.,
1482 rather than in the `compilers' vector.
1484 Anything invalid in the file is a fatal error. */
1487 read_specs (filename, main_p)
1488 const char *filename;
1494 buffer = load_specs (filename);
1496 /* Scan BUFFER for specs, putting them in the vector. */
1502 char *in, *out, *p1, *p2, *p3;
1504 /* Advance P in BUFFER to the next nonblank nocomment line. */
1505 p = skip_whitespace (p);
1509 /* Is this a special command that starts with '%'? */
1510 /* Don't allow this for the main specs file, since it would
1511 encourage people to overwrite it. */
1512 if (*p == '%' && !main_p)
1515 while (*p && *p != '\n')
1521 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1522 && (p1[sizeof "%include" - 1] == ' '
1523 || p1[sizeof "%include" - 1] == '\t'))
1527 p1 += sizeof ("%include");
1528 while (*p1 == ' ' || *p1 == '\t')
1531 if (*p1++ != '<' || p[-2] != '>')
1532 fatal ("specs %%include syntax malformed after %ld characters",
1533 (long) (p1 - buffer + 1));
1536 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1537 read_specs (new_filename ? new_filename : p1, FALSE);
1540 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1541 && (p1[sizeof "%include_noerr" - 1] == ' '
1542 || p1[sizeof "%include_noerr" - 1] == '\t'))
1546 p1 += sizeof "%include_noerr";
1547 while (*p1 == ' ' || *p1 == '\t')
1550 if (*p1++ != '<' || p[-2] != '>')
1551 fatal ("specs %%include syntax malformed after %ld characters",
1552 (long) (p1 - buffer + 1));
1555 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1557 read_specs (new_filename, FALSE);
1558 else if (verbose_flag)
1559 notice ("Could not find specs file %s\n", p1);
1562 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1563 && (p1[sizeof "%rename" - 1] == ' '
1564 || p1[sizeof "%rename" - 1] == '\t'))
1567 struct spec_list *sl;
1569 /* Get original name */
1570 p1 += sizeof "%rename";
1571 while (*p1 == ' ' || *p1 == '\t')
1574 if (! ISALPHA ((unsigned char) *p1))
1575 fatal ("specs %%rename syntax malformed after %ld characters",
1576 (long) (p1 - buffer));
1579 while (*p2 && !ISSPACE ((unsigned char) *p2))
1582 if (*p2 != ' ' && *p2 != '\t')
1583 fatal ("specs %%rename syntax malformed after %ld characters",
1584 (long) (p2 - buffer));
1588 while (*p2 == ' ' || *p2 == '\t')
1591 if (! ISALPHA ((unsigned char) *p2))
1592 fatal ("specs %%rename syntax malformed after %ld characters",
1593 (long) (p2 - buffer));
1595 /* Get new spec name. */
1597 while (*p3 && !ISSPACE ((unsigned char) *p3))
1601 fatal ("specs %%rename syntax malformed after %ld characters",
1602 (long) (p3 - buffer));
1605 for (sl = specs; sl; sl = sl->next)
1606 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1610 fatal ("specs %s spec was not found to be renamed", p1);
1612 if (strcmp (p1, p2) == 0)
1617 notice ("rename spec %s to %s\n", p1, p2);
1619 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1623 set_spec (p2, *(sl->ptr_spec));
1625 free ((PTR) *(sl->ptr_spec));
1627 *(sl->ptr_spec) = "";
1632 fatal ("specs unknown %% command after %ld characters",
1633 (long) (p1 - buffer));
1636 /* Find the colon that should end the suffix. */
1638 while (*p1 && *p1 != ':' && *p1 != '\n')
1641 /* The colon shouldn't be missing. */
1643 fatal ("specs file malformed after %ld characters",
1644 (long) (p1 - buffer));
1646 /* Skip back over trailing whitespace. */
1648 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1651 /* Copy the suffix to a string. */
1652 suffix = save_string (p, p2 - p);
1653 /* Find the next line. */
1654 p = skip_whitespace (p1 + 1);
1656 fatal ("specs file malformed after %ld characters",
1657 (long) (p - buffer));
1660 /* Find next blank line or end of string. */
1661 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1664 /* Specs end at the blank line and do not include the newline. */
1665 spec = save_string (p, p1 - p);
1668 /* Delete backslash-newline sequences from the spec. */
1673 if (in[0] == '\\' && in[1] == '\n')
1675 else if (in[0] == '#')
1676 while (*in && *in != '\n')
1684 if (suffix[0] == '*')
1686 if (! strcmp (suffix, "*link_command"))
1687 link_command_spec = spec;
1689 set_spec (suffix + 1, spec);
1693 /* Add this pair to the vector. */
1695 = ((struct compiler *)
1696 xrealloc (compilers,
1697 (n_compilers + 2) * sizeof (struct compiler)));
1699 compilers[n_compilers].suffix = suffix;
1700 compilers[n_compilers].spec = spec;
1702 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1706 link_command_spec = spec;
1709 if (link_command_spec == 0)
1710 fatal ("spec file has no spec for linking");
1713 /* Record the names of temporary files we tell compilers to write,
1714 and delete them at the end of the run. */
1716 /* This is the common prefix we use to make temp file names.
1717 It is chosen once for each run of this program.
1718 It is substituted into a spec by %g or %j.
1719 Thus, all temp file names contain this prefix.
1720 In practice, all temp file names start with this prefix.
1722 This prefix comes from the envvar TMPDIR if it is defined;
1723 otherwise, from the P_tmpdir macro if that is defined;
1724 otherwise, in /usr/tmp or /tmp;
1725 or finally the current directory if all else fails. */
1727 static const char *temp_filename;
1729 /* Length of the prefix. */
1731 static int temp_filename_length;
1733 /* Define the list of temporary files to delete. */
1738 struct temp_file *next;
1741 /* Queue of files to delete on success or failure of compilation. */
1742 static struct temp_file *always_delete_queue;
1743 /* Queue of files to delete on failure of compilation. */
1744 static struct temp_file *failure_delete_queue;
1746 /* Record FILENAME as a file to be deleted automatically.
1747 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1748 otherwise delete it in any case.
1749 FAIL_DELETE nonzero means delete it if a compilation step fails;
1750 otherwise delete it in any case. */
1753 record_temp_file (filename, always_delete, fail_delete)
1754 const char *filename;
1758 register char *const name = xstrdup (filename);
1762 register struct temp_file *temp;
1763 for (temp = always_delete_queue; temp; temp = temp->next)
1764 if (! strcmp (name, temp->name))
1767 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1768 temp->next = always_delete_queue;
1770 always_delete_queue = temp;
1777 register struct temp_file *temp;
1778 for (temp = failure_delete_queue; temp; temp = temp->next)
1779 if (! strcmp (name, temp->name))
1782 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1783 temp->next = failure_delete_queue;
1785 failure_delete_queue = temp;
1791 /* Delete all the temporary files whose names we previously recorded. */
1794 delete_if_ordinary (name)
1801 printf ("Delete %s? (y or n) ", name);
1805 while ((c = getchar ()) != '\n' && c != EOF)
1808 if (i == 'y' || i == 'Y')
1810 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1811 if (unlink (name) < 0)
1813 perror_with_name (name);
1817 delete_temp_files ()
1819 register struct temp_file *temp;
1821 for (temp = always_delete_queue; temp; temp = temp->next)
1822 delete_if_ordinary (temp->name);
1823 always_delete_queue = 0;
1826 /* Delete all the files to be deleted on error. */
1829 delete_failure_queue ()
1831 register struct temp_file *temp;
1833 for (temp = failure_delete_queue; temp; temp = temp->next)
1834 delete_if_ordinary (temp->name);
1838 clear_failure_queue ()
1840 failure_delete_queue = 0;
1843 /* Routine to add variables to the environment. We do this to pass
1844 the pathname of the gcc driver, and the directories search to the
1845 collect2 program, which is being run as ld. This way, we can be
1846 sure of executing the right compiler when collect2 wants to build
1847 constructors and destructors. Since the environment variables we
1848 use come from an obstack, we don't have to worry about allocating
1857 #ifndef VMS /* nor about VMS */
1859 extern char **environ;
1860 char **old_environ = environ;
1864 int str_len = strlen (str);
1868 while ((ch = *p++) != '\0' && ch != '=')
1874 /* Search for replacing an existing environment variable, and
1875 count the number of total environment variables. */
1876 for (envp = old_environ; *envp; envp++)
1879 if (!strncmp (str, *envp, name_len))
1886 /* Add a new environment variable */
1887 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
1889 memcpy ((char *) (environ + 1), (char *) old_environ,
1890 sizeof (char *) * (num_envs + 1));
1895 #endif /* HAVE_PUTENV */
1897 /* Build a list of search directories from PATHS.
1898 PREFIX is a string to prepend to the list.
1899 If CHECK_DIR_P is non-zero we ensure the directory exists.
1900 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1901 It is also used by the --print-search-dirs flag. */
1904 build_search_list (paths, prefix, check_dir_p)
1905 struct path_prefix *paths;
1909 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1911 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1912 int first_time = TRUE;
1913 struct prefix_list *pprefix;
1915 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1916 obstack_1grow (&collect_obstack, '=');
1918 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1920 int len = strlen (pprefix->prefix);
1924 || is_directory (pprefix->prefix, machine_suffix, 0)))
1927 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1930 obstack_grow (&collect_obstack, pprefix->prefix, len);
1931 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1934 if (just_machine_suffix
1935 && pprefix->require_machine_suffix == 2
1937 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1940 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1943 obstack_grow (&collect_obstack, pprefix->prefix, len);
1944 obstack_grow (&collect_obstack, just_machine_suffix,
1948 if (! pprefix->require_machine_suffix)
1951 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1954 obstack_grow (&collect_obstack, pprefix->prefix, len);
1958 obstack_1grow (&collect_obstack, '\0');
1959 return obstack_finish (&collect_obstack);
1962 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1966 putenv_from_prefixes (paths, env_var)
1967 struct path_prefix *paths;
1968 const char *env_var;
1970 putenv (build_search_list (paths, env_var, 1));
1975 /* FIXME: the location independence code for VMS is hairier than this,
1976 and hasn't been written. */
1978 /* Split a filename into component directories. */
1981 split_directories (name, ptr_num_dirs)
1990 /* Count the number of directories. Special case MSDOS disk names as part
1991 of the initial directory. */
1993 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1994 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1999 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2001 while ((ch = *p++) != '\0')
2003 if (IS_DIR_SEPARATOR (ch))
2006 while (IS_DIR_SEPARATOR (*p))
2011 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2013 /* Now copy the directory parts. */
2016 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2017 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2019 dirs[num_dirs++] = save_string (p, 3);
2022 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2025 while ((ch = *p++) != '\0')
2027 if (IS_DIR_SEPARATOR (ch))
2029 while (IS_DIR_SEPARATOR (*p))
2032 dirs[num_dirs++] = save_string (q, p - q);
2038 dirs[num_dirs++] = save_string (q, p - 1 - q);
2040 dirs[num_dirs] = NULL_PTR;
2042 *ptr_num_dirs = num_dirs;
2047 /* Release storage held by split directories. */
2050 free_split_directories (dirs)
2055 while (dirs[i] != NULL_PTR)
2058 free ((char *) dirs);
2061 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2062 to PREFIX starting with the directory portion of PROGNAME and a relative
2063 pathname of the difference between BIN_PREFIX and PREFIX.
2065 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2066 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2067 function will return /red/green/blue/../omega.
2069 If no relative prefix can be found, return NULL. */
2072 make_relative_prefix (progname, bin_prefix, prefix)
2073 const char *progname;
2074 const char *bin_prefix;
2077 char **prog_dirs, **bin_dirs, **prefix_dirs;
2078 int prog_num, bin_num, prefix_num, std_loc_p;
2081 prog_dirs = split_directories (progname, &prog_num);
2082 bin_dirs = split_directories (bin_prefix, &bin_num);
2084 /* If there is no full pathname, try to find the program by checking in each
2085 of the directories specified in the PATH environment variable. */
2090 GET_ENV_PATH_LIST (temp, "PATH");
2093 char *startp, *endp;
2094 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2096 startp = endp = temp;
2099 if (*endp == PATH_SEPARATOR || *endp == 0)
2104 nstore[1] = DIR_SEPARATOR;
2109 strncpy (nstore, startp, endp - startp);
2110 if (! IS_DIR_SEPARATOR (endp[-1]))
2112 nstore[endp - startp] = DIR_SEPARATOR;
2113 nstore[endp - startp + 1] = 0;
2116 nstore[endp - startp] = 0;
2118 strcat (nstore, progname);
2119 if (! access (nstore, X_OK)
2120 #ifdef HAVE_EXECUTABLE_SUFFIX
2121 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2125 free_split_directories (prog_dirs);
2127 prog_dirs = split_directories (progname, &prog_num);
2133 endp = startp = endp + 1;
2141 /* Remove the program name from comparison of directory names. */
2144 /* Determine if the compiler is installed in the standard location, and if
2145 so, we don't need to specify relative directories. Also, if argv[0]
2146 doesn't contain any directory specifiers, there is not much we can do. */
2148 if (prog_num == bin_num)
2150 for (i = 0; i < bin_num; i++)
2152 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2156 if (prog_num <= 0 || i == bin_num)
2159 free_split_directories (prog_dirs);
2160 free_split_directories (bin_dirs);
2161 prog_dirs = bin_dirs = (char **) 0;
2166 prefix_dirs = split_directories (prefix, &prefix_num);
2168 /* Find how many directories are in common between bin_prefix & prefix. */
2169 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2170 for (common = 0; common < n; common++)
2172 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2176 /* If there are no common directories, there can be no relative prefix. */
2179 free_split_directories (prog_dirs);
2180 free_split_directories (bin_dirs);
2181 free_split_directories (prefix_dirs);
2185 /* Build up the pathnames in argv[0]. */
2186 for (i = 0; i < prog_num; i++)
2187 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2189 /* Now build up the ..'s. */
2190 for (i = common; i < n; i++)
2192 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2193 obstack_1grow (&obstack, DIR_SEPARATOR);
2196 /* Put in directories to move over to prefix. */
2197 for (i = common; i < prefix_num; i++)
2198 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2200 free_split_directories (prog_dirs);
2201 free_split_directories (bin_dirs);
2202 free_split_directories (prefix_dirs);
2204 obstack_1grow (&obstack, '\0');
2205 return obstack_finish (&obstack);
2209 /* Check whether NAME can be accessed in MODE. This is like access,
2210 except that it never considers directories to be executable. */
2213 access_check (name, mode)
2221 if (stat (name, &st) < 0
2222 || S_ISDIR (st.st_mode))
2226 return access (name, mode);
2229 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2230 access to check permissions.
2231 Return 0 if not found, otherwise return its name, allocated with malloc. */
2234 find_a_file (pprefix, name, mode)
2235 struct path_prefix *pprefix;
2240 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2241 struct prefix_list *pl;
2242 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2244 #ifdef DEFAULT_ASSEMBLER
2245 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2246 return xstrdup (DEFAULT_ASSEMBLER);
2249 #ifdef DEFAULT_LINKER
2250 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2251 return xstrdup (DEFAULT_LINKER);
2255 len += strlen (machine_suffix);
2257 temp = xmalloc (len);
2259 /* Determine the filename to execute (special case for absolute paths). */
2261 if (IS_ABSOLUTE_PATHNAME (name))
2263 if (access (name, mode) == 0)
2265 strcpy (temp, name);
2270 for (pl = pprefix->plist; pl; pl = pl->next)
2274 /* Some systems have a suffix for executable files.
2275 So try appending that first. */
2276 if (file_suffix[0] != 0)
2278 strcpy (temp, pl->prefix);
2279 strcat (temp, machine_suffix);
2280 strcat (temp, name);
2281 strcat (temp, file_suffix);
2282 if (access_check (temp, mode) == 0)
2284 if (pl->used_flag_ptr != 0)
2285 *pl->used_flag_ptr = 1;
2290 /* Now try just the name. */
2291 strcpy (temp, pl->prefix);
2292 strcat (temp, machine_suffix);
2293 strcat (temp, name);
2294 if (access_check (temp, mode) == 0)
2296 if (pl->used_flag_ptr != 0)
2297 *pl->used_flag_ptr = 1;
2302 /* Certain prefixes are tried with just the machine type,
2303 not the version. This is used for finding as, ld, etc. */
2304 if (just_machine_suffix && pl->require_machine_suffix == 2)
2306 /* Some systems have a suffix for executable files.
2307 So try appending that first. */
2308 if (file_suffix[0] != 0)
2310 strcpy (temp, pl->prefix);
2311 strcat (temp, just_machine_suffix);
2312 strcat (temp, name);
2313 strcat (temp, file_suffix);
2314 if (access_check (temp, mode) == 0)
2316 if (pl->used_flag_ptr != 0)
2317 *pl->used_flag_ptr = 1;
2322 strcpy (temp, pl->prefix);
2323 strcat (temp, just_machine_suffix);
2324 strcat (temp, name);
2325 if (access_check (temp, mode) == 0)
2327 if (pl->used_flag_ptr != 0)
2328 *pl->used_flag_ptr = 1;
2333 /* Certain prefixes can't be used without the machine suffix
2334 when the machine or version is explicitly specified. */
2335 if (! pl->require_machine_suffix)
2337 /* Some systems have a suffix for executable files.
2338 So try appending that first. */
2339 if (file_suffix[0] != 0)
2341 strcpy (temp, pl->prefix);
2342 strcat (temp, name);
2343 strcat (temp, file_suffix);
2344 if (access_check (temp, mode) == 0)
2346 if (pl->used_flag_ptr != 0)
2347 *pl->used_flag_ptr = 1;
2352 strcpy (temp, pl->prefix);
2353 strcat (temp, name);
2354 if (access_check (temp, mode) == 0)
2356 if (pl->used_flag_ptr != 0)
2357 *pl->used_flag_ptr = 1;
2367 /* Ranking of prefixes in the sort list. -B prefixes are put before
2370 enum path_prefix_priority
2372 PREFIX_PRIORITY_B_OPT,
2373 PREFIX_PRIORITY_LAST
2376 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2377 order according to PRIORITY. Within each PRIORITY, new entries are
2380 If WARN is nonzero, we will warn if no file is found
2381 through this prefix. WARN should point to an int
2382 which will be set to 1 if this entry is used.
2384 COMPONENT is the value to be passed to update_path.
2386 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2387 the complete value of machine_suffix.
2388 2 means try both machine_suffix and just_machine_suffix. */
2391 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2392 struct path_prefix *pprefix;
2394 const char *component;
2395 /* enum prefix_priority */ int priority;
2396 int require_machine_suffix;
2399 struct prefix_list *pl, **prev;
2402 for (prev = &pprefix->plist;
2403 (*prev) != NULL && (*prev)->priority <= priority;
2404 prev = &(*prev)->next)
2407 /* Keep track of the longest prefix */
2409 prefix = update_path (prefix, component);
2410 len = strlen (prefix);
2411 if (len > pprefix->max_len)
2412 pprefix->max_len = len;
2414 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2415 pl->prefix = save_string (prefix, len);
2416 pl->require_machine_suffix = require_machine_suffix;
2417 pl->used_flag_ptr = warn;
2418 pl->priority = priority;
2422 /* Insert after PREV */
2427 /* Execute the command specified by the arguments on the current line of spec.
2428 When using pipes, this includes several piped-together commands
2429 with `|' between them.
2431 Return 0 if successful, -1 if failed. */
2437 int n_commands; /* # of command. */
2441 const char *prog; /* program name. */
2442 const char **argv; /* vector of args. */
2443 int pid; /* pid of process for this command. */
2446 struct command *commands; /* each command buffer with above info. */
2448 /* Count # of piped commands. */
2449 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2450 if (strcmp (argbuf[i], "|") == 0)
2453 /* Get storage for each command. */
2454 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2456 /* Split argbuf into its separate piped processes,
2457 and record info about each one.
2458 Also search for the programs that are to be run. */
2460 commands[0].prog = argbuf[0]; /* first command. */
2461 commands[0].argv = &argbuf[0];
2462 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2465 commands[0].argv[0] = string;
2467 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2468 if (strcmp (argbuf[i], "|") == 0)
2469 { /* each command. */
2470 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2471 fatal ("-pipe not supported");
2473 argbuf[i] = 0; /* termination of command args. */
2474 commands[n_commands].prog = argbuf[i + 1];
2475 commands[n_commands].argv = &argbuf[i + 1];
2476 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2478 commands[n_commands].argv[0] = string;
2482 argbuf[argbuf_index] = 0;
2484 /* If -v, print what we are about to do, and maybe query. */
2488 /* For help listings, put a blank line between sub-processes. */
2489 if (print_help_list)
2490 fputc ('\n', stderr);
2492 /* Print each piped command as a separate line. */
2493 for (i = 0; i < n_commands; i++)
2495 const char *const *j;
2497 for (j = commands[i].argv; *j; j++)
2498 fprintf (stderr, " %s", *j);
2500 /* Print a pipe symbol after all but the last command. */
2501 if (i + 1 != n_commands)
2502 fprintf (stderr, " |");
2503 fprintf (stderr, "\n");
2507 notice ("\nGo ahead? (y or n) ");
2511 while (getchar () != '\n')
2514 if (i != 'y' && i != 'Y')
2519 /* Run each piped subprocess. */
2521 for (i = 0; i < n_commands; i++)
2523 char *errmsg_fmt, *errmsg_arg;
2524 const char *string = commands[i].argv[0];
2526 /* For some bizarre reason, the second argument of execvp() is
2527 char *const *, not const char *const *. */
2528 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2529 programname, temp_filename,
2530 &errmsg_fmt, &errmsg_arg,
2531 ((i == 0 ? PEXECUTE_FIRST : 0)
2532 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2533 | (string == commands[i].prog
2534 ? PEXECUTE_SEARCH : 0)
2535 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2537 if (commands[i].pid == -1)
2538 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2540 if (string != commands[i].prog)
2541 free ((PTR) string);
2546 /* Wait for all the subprocesses to finish.
2547 We don't care what order they finish in;
2548 we know that N_COMMANDS waits will get them all.
2549 Ignore subprocesses that we don't know about,
2550 since they can be spawned by the process that exec'ed us. */
2554 #ifdef HAVE_GETRUSAGE
2556 double ut = 0.0, st = 0.0;
2559 for (i = 0; i < n_commands;)
2565 pid = pwait (commands[i].pid, &status, 0);
2569 #ifdef HAVE_GETRUSAGE
2572 /* getrusage returns the total resource usage of all children
2573 up to now. Copy the previous values into prus, get the
2574 current statistics, then take the difference. */
2577 getrusage (RUSAGE_CHILDREN, &rus);
2578 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2579 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2580 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2582 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2583 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2584 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2588 for (j = 0; j < n_commands; j++)
2589 if (commands[j].pid == pid)
2592 if (WIFSIGNALED (status))
2595 /* SIGPIPE is a special case. It happens in -pipe mode
2596 when the compiler dies before the preprocessor is
2597 done, or the assembler dies before the compiler is
2598 done. There's generally been an error already, and
2599 this is just fallout. So don't generate another error
2600 unless we would otherwise have succeeded. */
2601 if (WTERMSIG (status) == SIGPIPE
2602 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2607 Internal error: %s (program %s)\n\
2608 Please submit a full bug report.\n\
2609 See %s for instructions.",
2610 strsignal (WTERMSIG (status)), commands[j].prog,
2615 else if (WIFEXITED (status)
2616 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2618 if (WEXITSTATUS (status) > greatest_status)
2619 greatest_status = WEXITSTATUS (status);
2622 #ifdef HAVE_GETRUSAGE
2623 if (report_times && ut + st != 0)
2624 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2633 /* Find all the switches given to us
2634 and make a vector describing them.
2635 The elements of the vector are strings, one per switch given.
2636 If a switch uses following arguments, then the `part1' field
2637 is the switch itself and the `args' field
2638 is a null-terminated vector containing the following arguments.
2639 The `live_cond' field is:
2641 1 if the switch is true in a conditional spec,
2642 -1 if false (overridden by a later switch)
2643 -2 if this switch should be ignored (used in %{<S})
2644 The `validated' field is nonzero if any spec has looked at this switch;
2645 if it remains zero at the end of the run, it must be meaningless. */
2648 #define SWITCH_FALSE -1
2649 #define SWITCH_IGNORE -2
2650 #define SWITCH_LIVE 1
2660 static struct switchstr *switches;
2662 static int n_switches;
2667 const char *language;
2670 /* Also a vector of input files specified. */
2672 static struct infile *infiles;
2674 static int n_infiles;
2676 /* This counts the number of libraries added by lang_specific_driver, so that
2677 we can tell if there were any user supplied any files or libraries. */
2679 static int added_libraries;
2681 /* And a vector of corresponding output files is made up later. */
2683 static const char **outfiles;
2685 /* Used to track if none of the -B paths are used. */
2688 /* Used to track if standard path isn't used and -b or -V is specified. */
2689 static int warn_std;
2691 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2692 static int *warn_std_ptr = 0;
2694 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2696 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2697 is true if we should look for an executable suffix as well. */
2700 convert_filename (name, do_exe)
2710 len = strlen (name);
2712 #ifdef HAVE_OBJECT_SUFFIX
2713 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2715 && name[len - 2] == '.'
2716 && name[len - 1] == 'o')
2718 obstack_grow (&obstack, name, len - 2);
2719 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2720 name = obstack_finish (&obstack);
2724 #ifdef HAVE_EXECUTABLE_SUFFIX
2725 /* If there is no filetype, make it the executable suffix (which includes
2726 the "."). But don't get confused if we have just "-o". */
2727 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2730 for (i = len - 1; i >= 0; i--)
2731 if (IS_DIR_SEPARATOR (name[i]))
2734 for (i++; i < len; i++)
2738 obstack_grow (&obstack, name, len);
2739 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2740 name = obstack_finish (&obstack);
2747 /* Display the command line switches accepted by gcc. */
2751 printf (_("Usage: %s [options] file...\n"), programname);
2752 fputs (_("Options:\n"), stdout);
2754 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2755 fputs (_(" --help Display this information\n"), stdout);
2756 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2758 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2759 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2760 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2761 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2762 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2763 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2764 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2765 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2766 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2768 -print-multi-lib Display the mapping between command line options and\n\
2769 multiple library search directories\n"), stdout);
2770 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2771 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2772 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2773 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2774 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2775 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2776 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2777 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2778 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2779 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2780 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2781 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2782 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2783 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2784 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2785 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2786 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2788 -x <language> Specify the language of the following input files\n\
2789 Permissable languages include: c c++ assembler none\n\
2790 'none' means revert to the default behaviour of\n\
2791 guessing the language based on the file's extension\n\
2795 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2796 the various sub-processes invoked by %s. In order to pass other options\n\
2797 on to these processes the -W<letter> options must be used.\n\
2800 /* The rest of the options are displayed by invocations of the various
2805 add_preprocessor_option (option, len)
2809 n_preprocessor_options++;
2811 if (! preprocessor_options)
2812 preprocessor_options
2813 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2815 preprocessor_options
2816 = (char **) xrealloc (preprocessor_options,
2817 n_preprocessor_options * sizeof (char *));
2819 preprocessor_options [n_preprocessor_options - 1] =
2820 save_string (option, len);
2824 add_assembler_option (option, len)
2828 n_assembler_options++;
2830 if (! assembler_options)
2832 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2835 = (char **) xrealloc (assembler_options,
2836 n_assembler_options * sizeof (char *));
2838 assembler_options [n_assembler_options - 1] = save_string (option, len);
2842 add_linker_option (option, len)
2848 if (! linker_options)
2850 = (char **) xmalloc (n_linker_options * sizeof (char *));
2853 = (char **) xrealloc (linker_options,
2854 n_linker_options * sizeof (char *));
2856 linker_options [n_linker_options - 1] = save_string (option, len);
2859 /* Create the vector `switches' and its contents.
2860 Store its length in `n_switches'. */
2863 process_command (argc, argv)
2865 const char *const *argv;
2870 const char *spec_lang = 0;
2871 int last_language_n_infiles;
2874 int lang_n_infiles = 0;
2875 #ifdef MODIFY_TARGET_NAME
2876 int is_modify_target_name;
2880 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2884 added_libraries = 0;
2886 /* Figure compiler version from version string. */
2888 compiler_version = temp1 = xstrdup (version_string);
2890 for (; *temp1; ++temp1)
2899 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2900 see if we can create it from the pathname specified in argv[0]. */
2903 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2904 if (!gcc_exec_prefix)
2906 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2907 standard_exec_prefix);
2908 if (gcc_exec_prefix)
2909 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2913 if (gcc_exec_prefix)
2915 int len = strlen (gcc_exec_prefix);
2917 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
2918 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2920 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2921 if (IS_DIR_SEPARATOR (*temp)
2922 && strncmp (temp + 1, "lib", 3) == 0
2923 && IS_DIR_SEPARATOR (temp[4])
2924 && strncmp (temp + 5, "gcc-lib", 7) == 0)
2925 len -= sizeof ("/lib/gcc-lib/") - 1;
2928 set_std_prefix (gcc_exec_prefix, len);
2929 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2930 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2931 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2932 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2935 /* COMPILER_PATH and LIBRARY_PATH have values
2936 that are lists of directory names with colons. */
2938 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2941 const char *startp, *endp;
2942 char *nstore = (char *) alloca (strlen (temp) + 3);
2944 startp = endp = temp;
2947 if (*endp == PATH_SEPARATOR || *endp == 0)
2949 strncpy (nstore, startp, endp - startp);
2951 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2952 else if (!IS_DIR_SEPARATOR (endp[-1]))
2954 nstore[endp - startp] = DIR_SEPARATOR;
2955 nstore[endp - startp + 1] = 0;
2958 nstore[endp - startp] = 0;
2959 add_prefix (&exec_prefixes, nstore, 0,
2960 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2961 add_prefix (&include_prefixes,
2962 concat (nstore, "include", NULL_PTR),
2963 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2966 endp = startp = endp + 1;
2973 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2974 if (temp && *cross_compile == '0')
2976 const char *startp, *endp;
2977 char *nstore = (char *) alloca (strlen (temp) + 3);
2979 startp = endp = temp;
2982 if (*endp == PATH_SEPARATOR || *endp == 0)
2984 strncpy (nstore, startp, endp - startp);
2986 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2987 else if (!IS_DIR_SEPARATOR (endp[-1]))
2989 nstore[endp - startp] = DIR_SEPARATOR;
2990 nstore[endp - startp + 1] = 0;
2993 nstore[endp - startp] = 0;
2994 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2995 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2998 endp = startp = endp + 1;
3005 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3006 GET_ENV_PATH_LIST (temp, "LPATH");
3007 if (temp && *cross_compile == '0')
3009 const char *startp, *endp;
3010 char *nstore = (char *) alloca (strlen (temp) + 3);
3012 startp = endp = temp;
3015 if (*endp == PATH_SEPARATOR || *endp == 0)
3017 strncpy (nstore, startp, endp - startp);
3019 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3020 else if (!IS_DIR_SEPARATOR (endp[-1]))
3022 nstore[endp - startp] = DIR_SEPARATOR;
3023 nstore[endp - startp + 1] = 0;
3026 nstore[endp - startp] = 0;
3027 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3028 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3031 endp = startp = endp + 1;
3038 /* Convert new-style -- options to old-style. */
3039 translate_options (&argc, &argv);
3041 /* Do language-specific adjustment/addition of flags. */
3042 lang_specific_driver (&argc, &argv, &added_libraries);
3044 /* Scan argv twice. Here, the first time, just count how many switches
3045 there will be in their vector, and how many input files in theirs.
3046 Also parse any switches that determine the configuration name, such as -b.
3047 Here we also parse the switches that cc itself uses (e.g. -v). */
3049 for (i = 1; i < argc; i++)
3051 if (! strcmp (argv[i], "-dumpspecs"))
3053 struct spec_list *sl;
3055 for (sl = specs; sl; sl = sl->next)
3056 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3057 if (link_command_spec)
3058 printf ("*link_command:\n%s\n\n", link_command_spec);
3061 else if (! strcmp (argv[i], "-dumpversion"))
3063 printf ("%s\n", spec_version);
3066 else if (! strcmp (argv[i], "-dumpmachine"))
3068 printf ("%s\n", spec_machine);
3071 else if (strcmp (argv[i], "-fhelp") == 0)
3073 /* translate_options () has turned --help into -fhelp. */
3074 print_help_list = 1;
3076 /* We will be passing a dummy file on to the sub-processes. */
3080 add_preprocessor_option ("--help", 6);
3081 add_assembler_option ("--help", 6);
3082 add_linker_option ("--help", 6);
3084 else if (strcmp (argv[i], "-ftarget-help") == 0)
3086 /* translate_options() has turned --target-help into -ftarget-help. */
3087 target_help_flag = 1;
3089 /* We will be passing a dummy file on to the sub-processes. */
3093 add_preprocessor_option ("--target-help", 13);
3094 add_assembler_option ("--target-help", 13);
3095 add_linker_option ("--target-help", 13);
3097 else if (! strcmp (argv[i], "-pass-exit-codes"))
3099 pass_exit_codes = 1;
3102 else if (! strcmp (argv[i], "-print-search-dirs"))
3103 print_search_dirs = 1;
3104 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3105 print_file_name = "libgcc.a";
3106 else if (! strncmp (argv[i], "-print-file-name=", 17))
3107 print_file_name = argv[i] + 17;
3108 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3109 print_prog_name = argv[i] + 17;
3110 else if (! strcmp (argv[i], "-print-multi-lib"))
3111 print_multi_lib = 1;
3112 else if (! strcmp (argv[i], "-print-multi-directory"))
3113 print_multi_directory = 1;
3114 else if (! strncmp (argv[i], "-Wa,", 4))
3117 /* Pass the rest of this option to the assembler. */
3119 /* Split the argument at commas. */
3121 for (j = 4; argv[i][j]; j++)
3122 if (argv[i][j] == ',')
3124 add_assembler_option (argv[i] + prev, j - prev);
3128 /* Record the part after the last comma. */
3129 add_assembler_option (argv[i] + prev, j - prev);
3131 else if (! strncmp (argv[i], "-Wp,", 4))
3134 /* Pass the rest of this option to the preprocessor. */
3136 /* Split the argument at commas. */
3138 for (j = 4; argv[i][j]; j++)
3139 if (argv[i][j] == ',')
3141 add_preprocessor_option (argv[i] + prev, j - prev);
3145 /* Record the part after the last comma. */
3146 add_preprocessor_option (argv[i] + prev, j - prev);
3148 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3149 /* The +e options to the C++ front-end. */
3151 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3154 /* Split the argument at commas. */
3155 for (j = 3; argv[i][j]; j++)
3156 n_infiles += (argv[i][j] == ',');
3158 else if (strcmp (argv[i], "-Xlinker") == 0)
3161 fatal ("argument to `-Xlinker' is missing");
3166 else if (strncmp (argv[i], "-l", 2) == 0)
3168 else if (strcmp (argv[i], "-save-temps") == 0)
3170 save_temps_flag = 1;
3173 else if (strcmp (argv[i], "-specs") == 0)
3175 struct user_specs *user = (struct user_specs *)
3176 xmalloc (sizeof (struct user_specs));
3178 fatal ("argument to `-specs' is missing");
3180 user->next = (struct user_specs *) 0;
3181 user->filename = argv[i];
3182 if (user_specs_tail)
3183 user_specs_tail->next = user;
3185 user_specs_head = user;
3186 user_specs_tail = user;
3188 else if (strncmp (argv[i], "-specs=", 7) == 0)
3190 struct user_specs *user = (struct user_specs *)
3191 xmalloc (sizeof (struct user_specs));
3192 if (strlen (argv[i]) == 7)
3193 fatal ("argument to `-specs=' is missing");
3195 user->next = (struct user_specs *) 0;
3196 user->filename = argv[i] + 7;
3197 if (user_specs_tail)
3198 user_specs_tail->next = user;
3200 user_specs_head = user;
3201 user_specs_tail = user;
3203 else if (strcmp (argv[i], "-time") == 0)
3205 else if (argv[i][0] == '-' && argv[i][1] != 0)
3207 register const char *p = &argv[i][1];
3208 register int c = *p;
3214 if (p[1] == 0 && i + 1 == argc)
3215 fatal ("argument to `-b' is missing");
3217 spec_machine = argv[++i];
3219 spec_machine = p + 1;
3221 warn_std_ptr = &warn_std;
3227 if (p[1] == 0 && i + 1 == argc)
3228 fatal ("argument to `-B' is missing");
3234 /* As a kludge, if the arg is "[foo/]stageN/", just
3235 add "[foo/]include" to the include prefix. */
3236 int len = strlen (value);
3239 && (IS_DIR_SEPARATOR (value[len - 8]))))
3240 && strncmp (value + len - 7, "stage", 5) == 0
3241 && ISDIGIT (value[len - 2])
3242 && (IS_DIR_SEPARATOR (value[len - 1])))
3245 add_prefix (&include_prefixes, "include", NULL_PTR,
3246 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3249 char *string = xmalloc (len + 1);
3250 strncpy (string, value, len-7);
3251 strcpy (string+len-7, "include");
3252 add_prefix (&include_prefixes, string, NULL_PTR,
3253 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3257 add_prefix (&exec_prefixes, value, NULL_PTR,
3258 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3259 add_prefix (&startfile_prefixes, value, NULL_PTR,
3260 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3261 add_prefix (&include_prefixes, concat (value, "include",
3264 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3269 case 'v': /* Print our subcommands and print versions. */
3271 /* If they do anything other than exactly `-v', don't set
3272 verbose_flag; rather, continue on to give the error. */
3280 if (p[1] == 0 && i + 1 == argc)
3281 fatal ("argument to `-V' is missing");
3283 spec_version = argv[++i];
3285 spec_version = p + 1;
3286 compiler_version = spec_version;
3287 warn_std_ptr = &warn_std;
3289 /* Validate the version number. Use the same checks
3290 done when inserting it into a spec.
3292 The format of the version string is
3293 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3295 const char *v = compiler_version;
3297 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3298 while (! ISDIGIT (*v))
3301 if (v > compiler_version && v[-1] != '-')
3302 fatal ("invalid version number format");
3304 /* Set V after the first period. */
3305 while (ISDIGIT (*v))
3309 fatal ("invalid version number format");
3312 while (ISDIGIT (*v))
3315 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3316 fatal ("invalid version number format");
3332 #if defined(HAVE_EXECUTABLE_SUFFIX)
3337 /* Forward scan, just in case -S or -c is specified
3344 if (argv[j][0] == '-')
3346 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3352 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3353 j += skip - (argv[j][2] != 0);
3354 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3361 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3363 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3365 argv[i] = convert_filename (argv[i], ! have_c);
3372 #ifdef MODIFY_TARGET_NAME
3373 is_modify_target_name = 0;
3376 j < sizeof modify_target / sizeof modify_target[0]; j++)
3377 if (! strcmp (argv[i], modify_target[j].sw))
3380 = (char *) xmalloc (strlen (modify_target[j].str)
3381 + strlen (spec_machine));
3384 int made_addition = 0;
3386 is_modify_target_name = 1;
3387 for (p = spec_machine, q = new_name; *p != 0; )
3389 if (modify_target[j].add_del == DELETE
3390 && (! strncmp (q, modify_target[j].str,
3391 strlen (modify_target[j].str))))
3392 p += strlen (modify_target[j].str);
3393 else if (modify_target[j].add_del == ADD
3394 && ! made_addition && *p == '-')
3396 for (r = modify_target[j].str; *r != 0; )
3404 spec_machine = new_name;
3407 if (is_modify_target_name)
3413 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3414 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3415 else if (WORD_SWITCH_TAKES_ARG (p))
3416 i += WORD_SWITCH_TAKES_ARG (p);
3426 if (have_c && have_o && lang_n_infiles > 1)
3427 fatal ("cannot specify -o with -c or -S and multiple compilations");
3429 /* Set up the search paths before we go looking for config files. */
3431 /* These come before the md prefixes so that we will find gcc's subcommands
3432 (such as cpp) rather than those of the host system. */
3433 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3434 as well as trying the machine and the version. */
3436 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3437 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3438 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3439 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3440 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3441 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3444 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3445 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3446 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3447 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3449 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3450 dir_separator_str, NULL_PTR);
3452 /* If tooldir is relative, base it on exec_prefixes. A relative
3453 tooldir lets us move the installed tree as a unit.
3455 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3456 directories, so that we can search both the user specified directory
3457 and the standard place. */
3459 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3461 if (gcc_exec_prefix)
3463 char *gcc_exec_tooldir_prefix
3464 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3465 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3467 add_prefix (&exec_prefixes,
3468 concat (gcc_exec_tooldir_prefix, "bin",
3469 dir_separator_str, NULL_PTR),
3470 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3471 add_prefix (&startfile_prefixes,
3472 concat (gcc_exec_tooldir_prefix, "lib",
3473 dir_separator_str, NULL_PTR),
3474 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3477 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3478 dir_separator_str, spec_version,
3479 dir_separator_str, tooldir_prefix, NULL_PTR);
3482 add_prefix (&exec_prefixes,
3483 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3484 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3485 add_prefix (&startfile_prefixes,
3486 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3487 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3489 /* More prefixes are enabled in main, after we read the specs file
3490 and determine whether this is cross-compilation or not. */
3492 /* Then create the space for the vectors and scan again. */
3494 switches = ((struct switchstr *)
3495 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3496 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3499 last_language_n_infiles = -1;
3501 /* This, time, copy the text of each switch and store a pointer
3502 to the copy in the vector of switches.
3503 Store all the infiles in their vector. */
3505 for (i = 1; i < argc; i++)
3507 /* Just skip the switches that were handled by the preceding loop. */
3508 #ifdef MODIFY_TARGET_NAME
3509 is_modify_target_name = 0;
3511 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3512 if (! strcmp (argv[i], modify_target[j].sw))
3513 is_modify_target_name = 1;
3515 if (is_modify_target_name)
3519 if (! strncmp (argv[i], "-Wa,", 4))
3521 else if (! strncmp (argv[i], "-Wp,", 4))
3523 else if (! strcmp (argv[i], "-pass-exit-codes"))
3525 else if (! strcmp (argv[i], "-print-search-dirs"))
3527 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3529 else if (! strncmp (argv[i], "-print-file-name=", 17))
3531 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3533 else if (! strcmp (argv[i], "-print-multi-lib"))
3535 else if (! strcmp (argv[i], "-print-multi-directory"))
3537 else if (strcmp (argv[i], "-ftarget-help") == 0)
3539 /* Create a dummy input file, so that we can pass --target-help on to
3540 the various sub-processes. */
3541 infiles[n_infiles].language = "c";
3542 infiles[n_infiles++].name = "target-dummy";
3544 /* Preserve the --target-help switch so that it can be caught by
3545 the cc1 spec string. */
3546 switches[n_switches].part1 = "--target-help";
3547 switches[n_switches].args = 0;
3548 switches[n_switches].live_cond = SWITCH_OK;
3549 switches[n_switches].validated = 0;
3553 else if (strcmp (argv[i], "-fhelp") == 0)
3557 /* Create a dummy input file, so that we can pass --help on to
3558 the various sub-processes. */
3559 infiles[n_infiles].language = "c";
3560 infiles[n_infiles++].name = "help-dummy";
3562 /* Preserve the --help switch so that it can be caught by the
3564 switches[n_switches].part1 = "--help";
3565 switches[n_switches].args = 0;
3566 switches[n_switches].live_cond = SWITCH_OK;
3567 switches[n_switches].validated = 0;
3572 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3574 /* Compensate for the +e options to the C++ front-end;
3575 they're there simply for cfront call-compatibility. We do
3576 some magic in default_compilers to pass them down properly.
3577 Note we deliberately start at the `+' here, to avoid passing
3578 -e0 or -e1 down into the linker. */
3579 switches[n_switches].part1 = &argv[i][0];
3580 switches[n_switches].args = 0;
3581 switches[n_switches].live_cond = SWITCH_OK;
3582 switches[n_switches].validated = 0;
3585 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3588 /* Split the argument at commas. */
3590 for (j = 4; argv[i][j]; j++)
3591 if (argv[i][j] == ',')
3593 infiles[n_infiles].language = "*";
3594 infiles[n_infiles++].name
3595 = save_string (argv[i] + prev, j - prev);
3598 /* Record the part after the last comma. */
3599 infiles[n_infiles].language = "*";
3600 infiles[n_infiles++].name = argv[i] + prev;
3602 else if (strcmp (argv[i], "-Xlinker") == 0)
3604 infiles[n_infiles].language = "*";
3605 infiles[n_infiles++].name = argv[++i];
3607 else if (strncmp (argv[i], "-l", 2) == 0)
3609 infiles[n_infiles].language = "*";
3610 infiles[n_infiles++].name = argv[i];
3612 else if (strcmp (argv[i], "-specs") == 0)
3614 else if (strncmp (argv[i], "-specs=", 7) == 0)
3616 else if (strcmp (argv[i], "-time") == 0)
3618 else if ((save_temps_flag || report_times)
3619 && strcmp (argv[i], "-pipe") == 0)
3621 /* -save-temps overrides -pipe, so that temp files are produced */
3622 if (save_temps_flag)
3623 error ("Warning: -pipe ignored because -save-temps specified");
3624 /* -time overrides -pipe because we can't get correct stats when
3625 multiple children are running at once. */
3626 else if (report_times)
3627 error ("Warning: -pipe ignored because -time specified");
3629 else if (argv[i][0] == '-' && argv[i][1] != 0)
3631 const char *p = &argv[i][1];
3636 if (p[1] == 0 && i + 1 == argc)
3637 fatal ("argument to `-x' is missing");
3639 spec_lang = argv[++i];
3642 if (! strcmp (spec_lang, "none"))
3643 /* Suppress the warning if -xnone comes after the last input
3644 file, because alternate command interfaces like g++ might
3645 find it useful to place -xnone after each input file. */
3648 last_language_n_infiles = n_infiles;
3651 switches[n_switches].part1 = p;
3652 /* Deal with option arguments in separate argv elements. */
3653 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3654 || WORD_SWITCH_TAKES_ARG (p))
3657 int n_args = WORD_SWITCH_TAKES_ARG (p);
3661 /* Count only the option arguments in separate argv elements. */
3662 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3664 if (i + n_args >= argc)
3665 fatal ("argument to `-%s' is missing", p);
3666 switches[n_switches].args
3667 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3669 switches[n_switches].args[j++] = argv[++i];
3670 /* Null-terminate the vector. */
3671 switches[n_switches].args[j] = 0;
3673 else if (strchr (switches_need_spaces, c))
3675 /* On some systems, ld cannot handle some options without
3676 a space. So split the option from its argument. */
3677 char *part1 = (char *) xmalloc (2);
3682 switches[n_switches].part1 = part1;
3683 switches[n_switches].args
3684 = (const char **) xmalloc (2 * sizeof (const char *));
3685 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3686 strcpy (tmp, &p[1]);
3687 switches[n_switches].args[1] = 0;
3690 switches[n_switches].args = 0;
3692 switches[n_switches].live_cond = SWITCH_OK;
3693 switches[n_switches].validated = 0;
3694 /* This is always valid, since gcc.c itself understands it. */
3695 if (!strcmp (p, "save-temps"))
3696 switches[n_switches].validated = 1;
3699 char ch = switches[n_switches].part1[0];
3700 if (ch == 'V' || ch == 'b' || ch == 'B')
3701 switches[n_switches].validated = 1;
3707 #ifdef HAVE_OBJECT_SUFFIX
3708 argv[i] = convert_filename (argv[i], 0);
3711 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3713 perror_with_name (argv[i]);
3718 infiles[n_infiles].language = spec_lang;
3719 infiles[n_infiles++].name = argv[i];
3724 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3725 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3727 switches[n_switches].part1 = 0;
3728 infiles[n_infiles].name = 0;
3731 /* Process a spec string, accumulating and running commands. */
3733 /* These variables describe the input file name.
3734 input_file_number is the index on outfiles of this file,
3735 so that the output file name can be stored for later use by %o.
3736 input_basename is the start of the part of the input file
3737 sans all directory names, and basename_length is the number
3738 of characters starting there excluding the suffix .c or whatever. */
3740 const char *input_filename;
3741 static int input_file_number;
3742 size_t input_filename_length;
3743 static int basename_length;
3744 static int suffixed_basename_length;
3745 static const char *input_basename;
3746 static const char *input_suffix;
3748 /* These are variables used within do_spec and do_spec_1. */
3750 /* Nonzero if an arg has been started and not yet terminated
3751 (with space, tab or newline). */
3752 static int arg_going;
3754 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3755 is a temporary file name. */
3756 static int delete_this_arg;
3758 /* Nonzero means %w has been seen; the next arg to be terminated
3759 is the output file name of this compilation. */
3760 static int this_is_output_file;
3762 /* Nonzero means %s has been seen; the next arg to be terminated
3763 is the name of a library file and we should try the standard
3764 search dirs for it. */
3765 static int this_is_library_file;
3767 /* Nonzero means that the input of this command is coming from a pipe. */
3768 static int input_from_pipe;
3770 /* Process the spec SPEC and run the commands specified therein.
3771 Returns 0 if the spec is successfully processed; -1 if failed. */
3781 delete_this_arg = 0;
3782 this_is_output_file = 0;
3783 this_is_library_file = 0;
3784 input_from_pipe = 0;
3786 value = do_spec_1 (spec, 0, NULL_PTR);
3788 /* Force out any unfinished command.
3789 If -pipe, this forces out the last command if it ended in `|'. */
3792 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3795 if (argbuf_index > 0)
3802 /* Process the sub-spec SPEC as a portion of a larger spec.
3803 This is like processing a whole spec except that we do
3804 not initialize at the beginning and we do not supply a
3805 newline by default at the end.
3806 INSWITCH nonzero means don't process %-sequences in SPEC;
3807 in this case, % is treated as an ordinary character.
3808 This is used while substituting switches.
3809 INSWITCH nonzero also causes SPC not to terminate an argument.
3811 Value is zero unless a line was finished
3812 and the command on that line reported an error. */
3815 do_spec_1 (spec, inswitch, soft_matched_part)
3818 const char *soft_matched_part;
3820 register const char *p = spec;
3827 /* If substituting a switch, treat all chars like letters.
3828 Otherwise, NL, SPC, TAB and % are special. */
3829 switch (inswitch ? 'a' : c)
3832 /* End of line: finish any pending argument,
3833 then run the pending command if one has been started. */
3836 obstack_1grow (&obstack, 0);
3837 string = obstack_finish (&obstack);
3838 if (this_is_library_file)
3839 string = find_file (string);
3840 store_arg (string, delete_this_arg, this_is_output_file);
3841 if (this_is_output_file)
3842 outfiles[input_file_number] = string;
3846 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3848 for (i = 0; i < n_switches; i++)
3849 if (!strcmp (switches[i].part1, "pipe"))
3852 /* A `|' before the newline means use a pipe here,
3853 but only if -pipe was specified.
3854 Otherwise, execute now and don't pass the `|' as an arg. */
3857 input_from_pipe = 1;
3858 switches[i].validated = 1;
3865 if (argbuf_index > 0)
3871 /* Reinitialize for a new command, and for a new argument. */
3874 delete_this_arg = 0;
3875 this_is_output_file = 0;
3876 this_is_library_file = 0;
3877 input_from_pipe = 0;
3881 /* End any pending argument. */
3884 obstack_1grow (&obstack, 0);
3885 string = obstack_finish (&obstack);
3886 if (this_is_library_file)
3887 string = find_file (string);
3888 store_arg (string, delete_this_arg, this_is_output_file);
3889 if (this_is_output_file)
3890 outfiles[input_file_number] = string;
3894 obstack_1grow (&obstack, c);
3900 /* Space or tab ends an argument if one is pending. */
3903 obstack_1grow (&obstack, 0);
3904 string = obstack_finish (&obstack);
3905 if (this_is_library_file)
3906 string = find_file (string);
3907 store_arg (string, delete_this_arg, this_is_output_file);
3908 if (this_is_output_file)
3909 outfiles[input_file_number] = string;
3911 /* Reinitialize for a new argument. */
3913 delete_this_arg = 0;
3914 this_is_output_file = 0;
3915 this_is_library_file = 0;
3922 fatal ("Invalid specification! Bug in cc.");
3925 obstack_grow (&obstack, input_basename, basename_length);
3930 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3935 delete_this_arg = 2;
3938 /* Dump out the directories specified with LIBRARY_PATH,
3939 followed by the absolute directories
3940 that we search for startfiles. */
3943 struct prefix_list *pl = startfile_prefixes.plist;
3944 size_t bufsize = 100;
3945 char *buffer = (char *) xmalloc (bufsize);
3948 for (; pl; pl = pl->next)
3950 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3951 /* Used on systems which record the specified -L dirs
3952 and use them to search for dynamic linking. */
3953 /* Relative directories always come from -B,
3954 and it is better not to use them for searching
3955 at run time. In particular, stage1 loses. */
3956 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
3959 /* Try subdirectory if there is one. */
3960 if (multilib_dir != NULL)
3964 if (strlen (pl->prefix) + strlen (machine_suffix)
3966 bufsize = (strlen (pl->prefix)
3967 + strlen (machine_suffix)) * 2 + 1;
3968 buffer = (char *) xrealloc (buffer, bufsize);
3969 strcpy (buffer, pl->prefix);
3970 strcat (buffer, machine_suffix);
3971 if (is_directory (buffer, multilib_dir, 1))
3973 do_spec_1 ("-L", 0, NULL_PTR);
3974 #ifdef SPACE_AFTER_L_OPTION
3975 do_spec_1 (" ", 0, NULL_PTR);
3977 do_spec_1 (buffer, 1, NULL_PTR);
3978 do_spec_1 (multilib_dir, 1, NULL_PTR);
3979 /* Make this a separate argument. */
3980 do_spec_1 (" ", 0, NULL_PTR);
3983 if (!pl->require_machine_suffix)
3985 if (is_directory (pl->prefix, multilib_dir, 1))
3987 do_spec_1 ("-L", 0, NULL_PTR);
3988 #ifdef SPACE_AFTER_L_OPTION
3989 do_spec_1 (" ", 0, NULL_PTR);
3991 do_spec_1 (pl->prefix, 1, NULL_PTR);
3992 do_spec_1 (multilib_dir, 1, NULL_PTR);
3993 /* Make this a separate argument. */
3994 do_spec_1 (" ", 0, NULL_PTR);
4000 if (is_directory (pl->prefix, machine_suffix, 1))
4002 do_spec_1 ("-L", 0, NULL_PTR);
4003 #ifdef SPACE_AFTER_L_OPTION
4004 do_spec_1 (" ", 0, NULL_PTR);
4006 do_spec_1 (pl->prefix, 1, NULL_PTR);
4007 /* Remove slash from machine_suffix. */
4008 if (strlen (machine_suffix) >= bufsize)
4009 bufsize = strlen (machine_suffix) * 2 + 1;
4010 buffer = (char *) xrealloc (buffer, bufsize);
4011 strcpy (buffer, machine_suffix);
4012 idx = strlen (buffer);
4013 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4014 buffer[idx - 1] = 0;
4015 do_spec_1 (buffer, 1, NULL_PTR);
4016 /* Make this a separate argument. */
4017 do_spec_1 (" ", 0, NULL_PTR);
4020 if (!pl->require_machine_suffix)
4022 if (is_directory (pl->prefix, "", 1))
4024 do_spec_1 ("-L", 0, NULL_PTR);
4025 #ifdef SPACE_AFTER_L_OPTION
4026 do_spec_1 (" ", 0, NULL_PTR);
4028 /* Remove slash from pl->prefix. */
4029 if (strlen (pl->prefix) >= bufsize)
4030 bufsize = strlen (pl->prefix) * 2 + 1;
4031 buffer = (char *) xrealloc (buffer, bufsize);
4032 strcpy (buffer, pl->prefix);
4033 idx = strlen (buffer);
4034 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4035 buffer[idx - 1] = 0;
4036 do_spec_1 (buffer, 1, NULL_PTR);
4037 /* Make this a separate argument. */
4038 do_spec_1 (" ", 0, NULL_PTR);
4047 /* %efoo means report an error with `foo' as error message
4048 and don't execute any more commands for this file. */
4052 while (*p != 0 && *p != '\n')
4054 buf = (char *) alloca (p - q + 1);
4055 strncpy (buf, q, p - q);
4066 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4067 and it is not a directory, and it is writable, use it.
4068 Otherwise, fall through and treat this like any other
4071 if ((!save_temps_flag)
4072 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4073 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4075 obstack_grow (&obstack, HOST_BIT_BUCKET,
4076 strlen (HOST_BIT_BUCKET));
4077 delete_this_arg = 0;
4085 if (save_temps_flag)
4087 obstack_grow (&obstack, input_basename, basename_length);
4088 delete_this_arg = 0;
4092 struct temp_name *t;
4094 const char *suffix = p;
4095 char *saved_suffix = NULL;
4097 while (*p == '.' || ISALPHA ((unsigned char) *p))
4099 suffix_length = p - suffix;
4100 if (p[0] == '%' && p[1] == 'O')
4103 /* We don't support extra suffix characters after %O. */
4104 if (*p == '.' || ISALPHA ((unsigned char) *p))
4106 if (suffix_length == 0)
4107 suffix = OBJECT_SUFFIX;
4111 = (char *) xmalloc (suffix_length
4112 + strlen (OBJECT_SUFFIX));
4113 strncpy (saved_suffix, suffix, suffix_length);
4114 strcpy (saved_suffix + suffix_length,
4117 suffix_length += strlen (OBJECT_SUFFIX);
4120 /* See if we already have an association of %g/%u/%U and
4122 for (t = temp_names; t; t = t->next)
4123 if (t->length == suffix_length
4124 && strncmp (t->suffix, suffix, suffix_length) == 0
4125 && t->unique == (c != 'g'))
4128 /* Make a new association if needed. %u and %j require one. */
4129 if (t == 0 || c == 'u' || c == 'j')
4133 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4134 t->next = temp_names;
4137 t->length = suffix_length;
4138 t->suffix = save_string (suffix, suffix_length);
4139 t->unique = (c != 'g');
4140 temp_filename = make_temp_file (t->suffix);
4141 temp_filename_length = strlen (temp_filename);
4142 t->filename = temp_filename;
4143 t->filename_length = temp_filename_length;
4147 free (saved_suffix);
4149 obstack_grow (&obstack, t->filename, t->filename_length);
4150 delete_this_arg = 1;
4156 obstack_grow (&obstack, input_filename, input_filename_length);
4162 struct prefix_list *pl = include_prefixes.plist;
4164 if (gcc_exec_prefix)
4166 do_spec_1 ("-iprefix", 1, NULL_PTR);
4167 /* Make this a separate argument. */
4168 do_spec_1 (" ", 0, NULL_PTR);
4169 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4170 do_spec_1 (" ", 0, NULL_PTR);
4173 for (; pl; pl = pl->next)
4175 do_spec_1 ("-isystem", 1, NULL_PTR);
4176 /* Make this a separate argument. */
4177 do_spec_1 (" ", 0, NULL_PTR);
4178 do_spec_1 (pl->prefix, 1, NULL_PTR);
4179 do_spec_1 (" ", 0, NULL_PTR);
4186 int max = n_infiles;
4187 max += lang_specific_extra_outfiles;
4189 for (i = 0; i < max; i++)
4191 store_arg (outfiles[i], 0, 0);
4196 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4201 this_is_library_file = 1;
4205 this_is_output_file = 1;
4210 int cur_index = argbuf_index;
4211 /* Handle the {...} following the %W. */
4214 p = handle_braces (p + 1);
4217 /* If any args were output, mark the last one for deletion
4219 if (argbuf_index != cur_index)
4220 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4224 /* %x{OPTION} records OPTION for %X to output. */
4230 /* Skip past the option value and make a copy. */
4235 string = save_string (p1 + 1, p - p1 - 2);
4237 /* See if we already recorded this option. */
4238 for (i = 0; i < n_linker_options; i++)
4239 if (! strcmp (string, linker_options[i]))
4245 /* This option is new; add it. */
4246 add_linker_option (string, strlen (string));
4250 /* Dump out the options accumulated previously using %x. */
4252 for (i = 0; i < n_linker_options; i++)
4254 do_spec_1 (linker_options[i], 1, NULL_PTR);
4255 /* Make each accumulated option a separate argument. */
4256 do_spec_1 (" ", 0, NULL_PTR);
4260 /* Dump out the options accumulated previously using -Wa,. */
4262 for (i = 0; i < n_assembler_options; i++)
4264 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4265 /* Make each accumulated option a separate argument. */
4266 do_spec_1 (" ", 0, NULL_PTR);
4270 /* Dump out the options accumulated previously using -Wp,. */
4272 for (i = 0; i < n_preprocessor_options; i++)
4274 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4275 /* Make each accumulated option a separate argument. */
4276 do_spec_1 (" ", 0, NULL_PTR);
4280 /* Here are digits and numbers that just process
4281 a certain constant string as a spec. */
4284 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4290 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4296 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4302 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4308 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4314 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4320 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4326 value = do_spec_1 (link_spec, 0, NULL_PTR);
4332 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4338 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4345 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4349 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4353 if (! strncmp (y, "-D", 2))
4354 /* Copy the whole option. */
4355 while (*y && *y != ' ' && *y != '\t')
4357 else if (*y == ' ' || *y == '\t')
4358 /* Copy whitespace to the result. */
4360 /* Don't copy other options. */
4367 value = do_spec_1 (buf, 0, NULL_PTR);
4375 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4379 /* Copy all of CPP_PREDEFINES into BUF,
4380 but force them all into the reserved name space if they
4381 aren't already there. The reserved name space is all
4382 identifiers beginning with two underscores or with one
4383 underscore and a capital letter. We do the forcing by
4384 adding up to two underscores to the beginning and end
4385 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4390 if (! strncmp (y, "-D", 2))
4399 && ! ISUPPER ((unsigned char) *(y + 1))))
4401 /* Stick __ at front of macro name. */
4405 /* Arrange to stick __ at the end as well. */
4409 /* Copy the macro name. */
4410 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4423 /* Copy the value given, if any. */
4424 while (*y && *y != ' ' && *y != '\t')
4427 else if (*y == ' ' || *y == '\t')
4428 /* Copy whitespace to the result. */
4430 /* Don't copy -A options */
4436 /* Copy all of CPP_PREDEFINES into BUF,
4437 but put __ after every -D. */
4441 if (! strncmp (y, "-D", 2))
4447 && ! ISUPPER ((unsigned char) *(y + 1))))
4449 /* Stick -D__ at front of macro name. */
4456 /* Copy the macro name. */
4457 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4460 /* Copy the value given, if any. */
4461 while (*y && *y != ' ' && *y != '\t')
4466 /* Do not copy this macro - we have just done it before */
4467 while (*y && *y != ' ' && *y != '\t')
4471 else if (*y == ' ' || *y == '\t')
4472 /* Copy whitespace to the result. */
4474 /* Don't copy -A options. */
4480 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4484 if (! strncmp (y, "-A", 2))
4485 /* Copy the whole option. */
4486 while (*y && *y != ' ' && *y != '\t')
4488 else if (*y == ' ' || *y == '\t')
4489 /* Copy whitespace to the result. */
4491 /* Don't copy other options. */
4498 value = do_spec_1 (buf, 0, NULL_PTR);
4505 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4510 /* Here we define characters other than letters and digits. */
4513 p = handle_braces (p);
4519 obstack_1grow (&obstack, '%');
4523 if (soft_matched_part)
4525 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4526 do_spec_1 (" ", 0, NULL_PTR);
4529 /* Catch the case where a spec string contains something like
4530 '%{foo:%*}'. ie there is no * in the pattern on the left
4531 hand side of the :. */
4532 error ("Spec failure: '%%*' has not been initialised by pattern match");
4535 /* Process a string found as the value of a spec given by name.
4536 This feature allows individual machine descriptions
4537 to add and use their own specs.
4538 %[...] modifies -D options the way %P does;
4539 %(...) uses the spec unmodified. */
4541 error ("Warning: use of obsolete %%[ operator in specs");
4544 const char *name = p;
4545 struct spec_list *sl;
4548 /* The string after the S/P is the name of a spec that is to be
4550 while (*p && *p != ')' && *p != ']')
4553 /* See if it's in the list. */
4554 for (len = p - name, sl = specs; sl; sl = sl->next)
4555 if (sl->name_len == len && !strncmp (sl->name, name, len))
4557 name = *(sl->ptr_spec);
4559 notice ("Processing spec %c%s%c, which is '%s'\n",
4560 c, sl->name, (c == '(') ? ')' : ']', name);
4569 value = do_spec_1 (name, 0, NULL_PTR);
4575 char *x = (char *) alloca (strlen (name) * 2 + 1);
4577 const char *y = name;
4580 /* Copy all of NAME into BUF, but put __ after
4581 every -D and at the end of each arg. */
4584 if (! strncmp (y, "-D", 2))
4595 && (*y == ' ' || *y == '\t' || *y == '='
4596 || *y == '}' || *y == 0))
4609 value = do_spec_1 (buf, 0, NULL_PTR);
4615 /* Discard the closing paren or bracket. */
4623 int c1 = *p++; /* Select first or second version number. */
4624 const char *v = compiler_version;
4626 static const char zeroc = '0';
4628 /* The format of the version string is
4629 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4631 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4632 while (! ISDIGIT (*v))
4634 if (v > compiler_version && v[-1] != '-')
4637 /* If desired, advance to second version number. */
4640 /* Set V after the first period. */
4641 while (ISDIGIT (*v))
4648 /* If desired, advance to third version number.
4649 But don't complain if it's not present */
4652 /* Set V after the second period. */
4653 while (ISDIGIT (*v))
4655 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4661 /* Set Q at the next period or at the end. */
4663 while (ISDIGIT (*q))
4665 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4669 /* Put that part into the command. */
4670 obstack_grow (&obstack, v, q - v);
4672 /* Default to "0" */
4673 obstack_grow (&obstack, &zeroc, 1);
4679 if (input_from_pipe)
4680 do_spec_1 ("-", 0, NULL_PTR);
4684 error ("Spec failure: Unrecognised spec option '%c'", c);
4690 /* Backslash: treat next character as ordinary. */
4695 /* Ordinary character: put it into the current argument. */
4696 obstack_1grow (&obstack, c);
4700 /* End of string. */
4704 /* Return 0 if we call do_spec_1 and that returns -1. */
4708 register const char *p;
4710 const char *filter, *body = NULL, *endbody = NULL;
4712 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4715 int include_blanks = 1;
4716 int elide_switch = 0;
4720 /* A '^' after the open-brace means to not give blanks before args. */
4727 /* A `|' after the open-brace means,
4728 if the test fails, output a single minus sign rather than nothing.
4729 This is used in %{|!pipe:...}. */
4736 /* A `<' after the open-brace means that the switch should be
4737 removed from the command-line. */
4743 negate = suffix = 0;
4746 /* A `!' after the open-brace negates the condition:
4747 succeed if the specified switch is not present. */
4751 /* A `.' after the open-brace means test against the current suffix. */
4760 if (elide_switch && (negate || pipe_p || suffix))
4762 /* It doesn't make sense to mix elision with other flags. We
4763 could fatal() here, but the standard seems to be to abort. */
4768 while (*p != ':' && *p != '}' && *p != '|')
4771 if (*p == '|' && pipe_p)
4778 register int count = 1;
4779 register const char *q = p;
4798 body = p, endbody = p + 1;
4803 int found = (input_suffix != 0
4804 && (long) strlen (input_suffix) == (long) (p - filter)
4805 && strncmp (input_suffix, filter, p - filter) == 0);
4811 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4814 else if (p[-1] == '*' && p[0] == '}')
4816 /* Substitute all matching switches as separate args. */
4819 for (i = 0; i < n_switches; i++)
4820 if (!strncmp (switches[i].part1, filter, p - filter)
4821 && check_live_switch (i, p - filter))
4822 give_switch (i, 0, include_blanks);
4826 /* Test for presence of the specified switch. */
4830 /* If name specified ends in *, as in {x*:...},
4831 check for %* and handle that case. */
4832 if (p[-1] == '*' && !negate)
4835 const char *r = body;
4837 /* First see whether we have %*. */
4841 if (*r == '%' && r[1] == '*')
4845 /* If we do, handle that case. */
4848 /* Substitute all matching switches as separate args.
4849 But do this by substituting for %*
4850 in the text that follows the colon. */
4852 unsigned hard_match_len = p - filter - 1;
4853 char *string = save_string (body, endbody - body - 1);
4855 for (i = 0; i < n_switches; i++)
4856 if (!strncmp (switches[i].part1, filter, hard_match_len)
4857 && check_live_switch (i, -1))
4859 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4860 /* Pass any arguments this switch has. */
4861 give_switch (i, 1, 1);
4864 /* We didn't match. Try again. */
4871 /* If name specified ends in *, as in {x*:...},
4872 check for presence of any switch name starting with x. */
4875 for (i = 0; i < n_switches; i++)
4877 unsigned hard_match_len = p - filter - 1;
4879 if (!strncmp (switches[i].part1, filter, hard_match_len)
4880 && check_live_switch (i, hard_match_len))
4887 /* Otherwise, check for presence of exact name specified. */
4890 for (i = 0; i < n_switches; i++)
4892 if (!strncmp (switches[i].part1, filter, p - filter)
4893 && switches[i].part1[p - filter] == 0
4894 && check_live_switch (i, -1))
4902 /* If it is as desired (present for %{s...}, absent for %{!s...})
4903 then substitute either the switch or the specified
4904 conditional text. */
4905 if (present != negate)
4909 switches[i].live_cond = SWITCH_IGNORE;
4910 switches[i].validated = 1;
4914 give_switch (i, 0, include_blanks);
4917 /* Even if many alternatives are matched, only output once. */
4922 /* Here if a %{|...} conditional fails: output a minus sign,
4923 which means "standard output" or "standard input". */
4924 do_spec_1 ("-", 0, NULL_PTR);
4929 /* We didn't match; try again. */
4933 /* Process the spec just once, regardless of match count. */
4936 if (do_spec_1 (save_string (body, endbody - body - 1),
4944 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4945 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4946 spec, or -1 if either exact match or %* is used.
4948 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4949 whose value does not begin with "no-" is obsoleted by the same value
4950 with the "no-", similarly for a switch with the "no-" prefix. */
4953 check_live_switch (switchnum, prefix_length)
4957 const char *name = switches[switchnum].part1;
4960 /* In the common case of {<at-most-one-letter>*}, a negating
4961 switch would always match, so ignore that case. We will just
4962 send the conflicting switches to the compiler phase. */
4963 if (prefix_length >= 0 && prefix_length <= 1)
4966 /* If we already processed this switch and determined if it was
4967 live or not, return our past determination. */
4968 if (switches[switchnum].live_cond != 0)
4969 return switches[switchnum].live_cond > 0;
4971 /* Now search for duplicate in a manner that depends on the name. */
4975 for (i = switchnum + 1; i < n_switches; i++)
4976 if (switches[i].part1[0] == 'O')
4978 switches[switchnum].validated = 1;
4979 switches[switchnum].live_cond = SWITCH_FALSE;
4984 case 'W': case 'f': case 'm':
4985 if (! strncmp (name + 1, "no-", 3))
4987 /* We have Xno-YYY, search for XYYY. */
4988 for (i = switchnum + 1; i < n_switches; i++)
4989 if (switches[i].part1[0] == name[0]
4990 && ! strcmp (&switches[i].part1[1], &name[4]))
4992 switches[switchnum].validated = 1;
4993 switches[switchnum].live_cond = SWITCH_FALSE;
4999 /* We have XYYY, search for Xno-YYY. */
5000 for (i = switchnum + 1; i < n_switches; i++)
5001 if (switches[i].part1[0] == name[0]
5002 && switches[i].part1[1] == 'n'
5003 && switches[i].part1[2] == 'o'
5004 && switches[i].part1[3] == '-'
5005 && !strcmp (&switches[i].part1[4], &name[1]))
5007 switches[switchnum].validated = 1;
5008 switches[switchnum].live_cond = SWITCH_FALSE;
5015 /* Otherwise the switch is live. */
5016 switches[switchnum].live_cond = SWITCH_LIVE;
5020 /* Pass a switch to the current accumulating command
5021 in the same form that we received it.
5022 SWITCHNUM identifies the switch; it is an index into
5023 the vector of switches gcc received, which is `switches'.
5024 This cannot fail since it never finishes a command line.
5026 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5028 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5032 give_switch (switchnum, omit_first_word, include_blanks)
5034 int omit_first_word;
5037 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5040 if (!omit_first_word)
5042 do_spec_1 ("-", 0, NULL_PTR);
5043 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5046 if (switches[switchnum].args != 0)
5049 for (p = switches[switchnum].args; *p; p++)
5052 do_spec_1 (" ", 0, NULL_PTR);
5053 do_spec_1 (*p, 1, NULL_PTR);
5057 do_spec_1 (" ", 0, NULL_PTR);
5058 switches[switchnum].validated = 1;
5061 /* Search for a file named NAME trying various prefixes including the
5062 user's -B prefix and some standard ones.
5063 Return the absolute file name found. If nothing is found, return NAME. */
5071 /* Try multilib_dir if it is defined. */
5072 if (multilib_dir != NULL)
5076 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5077 strcpy (try, multilib_dir);
5078 strcat (try, dir_separator_str);
5081 newname = find_a_file (&startfile_prefixes, try, R_OK);
5083 /* If we don't find it in the multi library dir, then fall
5084 through and look for it in the normal places. */
5085 if (newname != NULL)
5089 newname = find_a_file (&startfile_prefixes, name, R_OK);
5090 return newname ? newname : name;
5093 /* Determine whether a directory exists. If LINKER, return 0 for
5094 certain fixed names not needed by the linker. If not LINKER, it is
5095 only important to return 0 if the host machine has a small ARG_MAX
5099 is_directory (path1, path2, linker)
5104 int len1 = strlen (path1);
5105 int len2 = strlen (path2);
5106 char *path = (char *) alloca (3 + len1 + len2);
5110 #ifndef SMALL_ARG_MAX
5115 /* Construct the path from the two parts. Ensure the string ends with "/.".
5116 The resulting path will be a directory even if the given path is a
5118 memcpy (path, path1, len1);
5119 memcpy (path + len1, path2, len2);
5120 cp = path + len1 + len2;
5121 if (!IS_DIR_SEPARATOR (cp[-1]))
5122 *cp++ = DIR_SEPARATOR;
5126 /* Exclude directories that the linker is known to search. */
5129 && strcmp (path, concat (dir_separator_str, "lib",
5130 dir_separator_str, ".", NULL_PTR)) == 0)
5132 && strcmp (path, concat (dir_separator_str, "usr",
5133 dir_separator_str, "lib",
5134 dir_separator_str, ".", NULL_PTR)) == 0)))
5137 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5140 /* Set up the various global variables to indicate that we're processing
5141 the input file named FILENAME. */
5144 set_input (filename)
5145 const char *filename;
5147 register const char *p;
5149 input_filename = filename;
5150 input_filename_length = strlen (input_filename);
5152 input_basename = input_filename;
5153 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5154 /* Skip drive name so 'x:foo' is handled properly. */
5155 if (input_basename[1] == ':')
5156 input_basename += 2;
5158 for (p = input_basename; *p; p++)
5159 if (IS_DIR_SEPARATOR (*p))
5160 input_basename = p + 1;
5162 /* Find a suffix starting with the last period,
5163 and set basename_length to exclude that suffix. */
5164 basename_length = strlen (input_basename);
5165 suffixed_basename_length = basename_length;
5166 p = input_basename + basename_length;
5167 while (p != input_basename && *p != '.')
5169 if (*p == '.' && p != input_basename)
5171 basename_length = p - input_basename;
5172 input_suffix = p + 1;
5178 /* On fatal signals, delete all the temporary files. */
5181 fatal_error (signum)
5184 signal (signum, SIG_DFL);
5185 delete_failure_queue ();
5186 delete_temp_files ();
5187 /* Get the same signal again, this time not handled,
5188 so its normal effect occurs. */
5189 kill (getpid (), signum);
5192 extern int main PARAMS ((int, const char *const *));
5197 const char *const *argv;
5201 int linker_was_run = 0;
5202 char *explicit_link_files;
5205 struct user_specs *uptr;
5207 p = argv[0] + strlen (argv[0]);
5208 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5212 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5213 /* Perform host dependant initialization when needed. */
5214 GCC_DRIVER_HOST_INITIALIZATION;
5217 #ifdef HAVE_LC_MESSAGES
5218 setlocale (LC_MESSAGES, "");
5220 (void) bindtextdomain (PACKAGE, localedir);
5221 (void) textdomain (PACKAGE);
5223 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5224 signal (SIGINT, fatal_error);
5226 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5227 signal (SIGHUP, fatal_error);
5229 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5230 signal (SIGTERM, fatal_error);
5232 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5233 signal (SIGPIPE, fatal_error);
5237 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5239 obstack_init (&obstack);
5241 /* Build multilib_select, et. al from the separate lines that make up each
5242 multilib selection. */
5244 const char *const *q = multilib_raw;
5247 obstack_init (&multilib_obstack);
5248 while ((p = *q++) != (char *) 0)
5249 obstack_grow (&multilib_obstack, p, strlen (p));
5251 obstack_1grow (&multilib_obstack, 0);
5252 multilib_select = obstack_finish (&multilib_obstack);
5254 q = multilib_matches_raw;
5255 while ((p = *q++) != (char *) 0)
5256 obstack_grow (&multilib_obstack, p, strlen (p));
5258 obstack_1grow (&multilib_obstack, 0);
5259 multilib_matches = obstack_finish (&multilib_obstack);
5261 q = multilib_exclusions_raw;
5262 while ((p = *q++) != (char *) 0)
5263 obstack_grow (&multilib_obstack, p, strlen (p));
5265 obstack_1grow (&multilib_obstack, 0);
5266 multilib_exclusions = obstack_finish (&multilib_obstack);
5269 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5272 obstack_1grow (&multilib_obstack, ' ');
5273 obstack_grow (&multilib_obstack,
5274 multilib_defaults_raw[i],
5275 strlen (multilib_defaults_raw[i]));
5279 obstack_1grow (&multilib_obstack, 0);
5280 multilib_defaults = obstack_finish (&multilib_obstack);
5283 /* Set up to remember the pathname of gcc and any options
5284 needed for collect. We use argv[0] instead of programname because
5285 we need the complete pathname. */
5286 obstack_init (&collect_obstack);
5287 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5288 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5289 putenv (obstack_finish (&collect_obstack));
5291 #ifdef INIT_ENVIRONMENT
5292 /* Set up any other necessary machine specific environment variables. */
5293 putenv (INIT_ENVIRONMENT);
5296 /* Make a table of what switches there are (switches, n_switches).
5297 Make a table of specified input files (infiles, n_infiles).
5298 Decode switches that are handled locally. */
5300 process_command (argc, argv);
5305 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5307 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5308 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5311 for (i = 0; (int) i < n_switches; i++)
5313 const char *const *args;
5316 obstack_grow (&collect_obstack, " ", 1);
5319 obstack_grow (&collect_obstack, "'-", 2);
5320 q = switches[i].part1;
5321 while ((p = strchr (q, '\'')))
5323 obstack_grow (&collect_obstack, q, p - q);
5324 obstack_grow (&collect_obstack, "'\\''", 4);
5327 obstack_grow (&collect_obstack, q, strlen (q));
5328 obstack_grow (&collect_obstack, "'", 1);
5330 for (args = switches[i].args; args && *args; args++)
5332 obstack_grow (&collect_obstack, " '", 2);
5334 while ((p = strchr (q, '\'')))
5336 obstack_grow (&collect_obstack, q, p - q);
5337 obstack_grow (&collect_obstack, "'\\''", 4);
5340 obstack_grow (&collect_obstack, q, strlen (q));
5341 obstack_grow (&collect_obstack, "'", 1);
5344 obstack_grow (&collect_obstack, "\0", 1);
5345 putenv (obstack_finish (&collect_obstack));
5348 /* Initialize the vector of specs to just the default.
5349 This means one element containing 0s, as a terminator. */
5351 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5352 memcpy ((char *) compilers, (char *) default_compilers,
5353 sizeof default_compilers);
5354 n_compilers = n_default_compilers;
5356 /* Read specs from a file if there is one. */
5358 machine_suffix = concat (spec_machine, dir_separator_str,
5359 spec_version, dir_separator_str, NULL_PTR);
5360 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5362 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5363 /* Read the specs file unless it is a default one. */
5364 if (specs_file != 0 && strcmp (specs_file, "specs"))
5365 read_specs (specs_file, TRUE);
5369 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5370 for any override of as, ld and libraries. */
5371 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5372 + strlen (just_machine_suffix)
5373 + sizeof ("specs"));
5375 strcpy (specs_file, standard_exec_prefix);
5376 strcat (specs_file, just_machine_suffix);
5377 strcat (specs_file, "specs");
5378 if (access (specs_file, R_OK) == 0)
5379 read_specs (specs_file, TRUE);
5381 /* If not cross-compiling, look for startfiles in the standard places. */
5382 if (*cross_compile == '0')
5384 if (*md_exec_prefix)
5386 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5387 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5388 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5389 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5392 if (*md_startfile_prefix)
5393 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5394 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5396 if (*md_startfile_prefix_1)
5397 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5398 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5400 /* If standard_startfile_prefix is relative, base it on
5401 standard_exec_prefix. This lets us move the installed tree
5402 as a unit. If GCC_EXEC_PREFIX is defined, base
5403 standard_startfile_prefix on that as well. */
5404 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5405 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5406 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5409 if (gcc_exec_prefix)
5410 add_prefix (&startfile_prefixes,
5411 concat (gcc_exec_prefix, machine_suffix,
5412 standard_startfile_prefix, NULL_PTR),
5413 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5414 add_prefix (&startfile_prefixes,
5415 concat (standard_exec_prefix,
5417 standard_startfile_prefix, NULL_PTR),
5418 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5421 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5422 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5423 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5424 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5425 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5426 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5427 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5432 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5434 add_prefix (&startfile_prefixes,
5435 concat (gcc_exec_prefix, machine_suffix,
5436 standard_startfile_prefix, NULL_PTR),
5437 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5440 /* Process any user specified specs in the order given on the command
5442 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5444 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5445 read_specs (filename ? filename : uptr->filename, FALSE);
5448 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5449 if (gcc_exec_prefix)
5451 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5452 + strlen (spec_version)
5453 + strlen (spec_machine) + 3);
5454 strcpy (temp, gcc_exec_prefix);
5455 strcat (temp, spec_machine);
5456 strcat (temp, dir_separator_str);
5457 strcat (temp, spec_version);
5458 strcat (temp, dir_separator_str);
5459 gcc_exec_prefix = temp;
5462 /* Now we have the specs.
5463 Set the `valid' bits for switches that match anything in any spec. */
5465 validate_all_switches ();
5467 /* Now that we have the switches and the specs, set
5468 the subdirectory based on the options. */
5469 set_multilib_dir ();
5471 /* Warn about any switches that no pass was interested in. */
5473 for (i = 0; (int) i < n_switches; i++)
5474 if (! switches[i].validated)
5475 error ("unrecognized option `-%s'", switches[i].part1);
5477 /* Obey some of the options. */
5479 if (print_search_dirs)
5481 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5482 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5483 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5487 if (print_file_name)
5489 printf ("%s\n", find_file (print_file_name));
5493 if (print_prog_name)
5495 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5496 printf ("%s\n", (newname ? newname : print_prog_name));
5500 if (print_multi_lib)
5502 print_multilib_info ();
5506 if (print_multi_directory)
5508 if (multilib_dir == NULL)
5511 printf ("%s\n", multilib_dir);
5515 if (target_help_flag)
5517 /* Print if any target specific options.*/
5519 /* We do not exit here. Instead we have created a fake input file
5520 called 'target-dummy' which needs to be compiled, and we pass this
5521 on to the various sub-processes, along with the --target-help
5525 if (print_help_list)
5531 printf (_("\nFor bug reporting instructions, please see:\n"));
5532 printf ("%s.\n", GCCBUGURL);
5537 /* We do not exit here. Instead we have created a fake input file
5538 called 'help-dummy' which needs to be compiled, and we pass this
5539 on the the various sub-processes, along with the --help switch. */
5546 notice ("Configured with: %s\n", configuration_arguments);
5548 /* compiler_version is truncated at the first space when initialized
5549 from version string, so truncate version_string at the first space
5550 before comparing. */
5551 for (n = 0; version_string[n]; n++)
5552 if (version_string[n] == ' ')
5555 if (! strncmp (version_string, compiler_version, n)
5556 && compiler_version[n] == 0)
5557 notice ("gcc version %s\n", version_string);
5559 notice ("gcc driver version %s executing gcc version %s\n",
5560 version_string, compiler_version);
5566 if (n_infiles == added_libraries)
5567 fatal ("No input files");
5569 /* Make a place to record the compiler output file names
5570 that correspond to the input files. */
5573 i += lang_specific_extra_outfiles;
5574 outfiles = (const char **) xcalloc (i, sizeof (char *));
5576 /* Record which files were specified explicitly as link input. */
5578 explicit_link_files = xcalloc (1, n_infiles);
5580 for (i = 0; (int) i < n_infiles; i++)
5582 register struct compiler *cp = 0;
5583 int this_file_error = 0;
5585 /* Tell do_spec what to substitute for %i. */
5587 input_file_number = i;
5588 set_input (infiles[i].name);
5590 /* Use the same thing in %o, unless cp->spec says otherwise. */
5592 outfiles[i] = input_filename;
5594 /* Figure out which compiler from the file's suffix. */
5596 cp = lookup_compiler (infiles[i].name, input_filename_length,
5597 infiles[i].language);
5601 /* Ok, we found an applicable compiler. Run its spec. */
5603 if (cp->spec[0] == '#')
5604 error ("%s: %s compiler not installed on this system",
5605 input_filename, &cp->spec[1]);
5606 value = do_spec (cp->spec);
5608 this_file_error = 1;
5611 /* If this file's name does not contain a recognized suffix,
5612 record it as explicit linker input. */
5615 explicit_link_files[i] = 1;
5617 /* Clear the delete-on-failure queue, deleting the files in it
5618 if this compilation failed. */
5620 if (this_file_error)
5622 delete_failure_queue ();
5625 /* If this compilation succeeded, don't delete those files later. */
5626 clear_failure_queue ();
5629 /* Reset the output file name to the first input file name, for use
5630 with %b in LINK_SPEC on a target that prefers not to emit a.out
5633 set_input (infiles[0].name);
5635 if (error_count == 0)
5637 /* Make sure INPUT_FILE_NUMBER points to first available open
5639 input_file_number = n_infiles;
5640 if (lang_specific_pre_link ())
5644 /* Run ld to link all the compiler output files. */
5646 if (error_count == 0)
5648 int tmp = execution_count;
5650 /* We'll use ld if we can't find collect2. */
5651 if (! strcmp (linker_name_spec, "collect2"))
5653 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5655 linker_name_spec = "ld";
5657 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5659 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5660 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5662 value = do_spec (link_command_spec);
5665 linker_was_run = (tmp != execution_count);
5668 /* If options said don't run linker,
5669 complain about input files to be given to the linker. */
5671 if (! linker_was_run && error_count == 0)
5672 for (i = 0; (int) i < n_infiles; i++)
5673 if (explicit_link_files[i])
5674 error ("%s: linker input file unused because linking not done",
5677 /* Delete some or all of the temporary files we made. */
5680 delete_failure_queue ();
5681 delete_temp_files ();
5683 if (print_help_list)
5685 printf (("\nFor bug reporting instructions, please see:\n"));
5686 printf ("%s\n", GCCBUGURL);
5689 return (signal_count != 0 ? 2
5690 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5694 /* Find the proper compilation spec for the file name NAME,
5695 whose length is LENGTH. LANGUAGE is the specified language,
5696 or 0 if this file is to be passed to the linker. */
5698 static struct compiler *
5699 lookup_compiler (name, length, language)
5702 const char *language;
5704 struct compiler *cp;
5706 /* If this was specified by the user to be a linker input, indicate that. */
5707 if (language != 0 && language[0] == '*')
5710 /* Otherwise, look for the language, if one is spec'd. */
5713 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5714 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5717 error ("language %s not recognized", language);
5721 /* Look for a suffix. */
5722 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5724 if (/* The suffix `-' matches only the file name `-'. */
5725 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5726 || (strlen (cp->suffix) < length
5727 /* See if the suffix matches the end of NAME. */
5728 && !strcmp (cp->suffix,
5729 name + length - strlen (cp->suffix))
5734 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5735 /* look again, but case-insensitively this time. */
5737 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5739 if (/* The suffix `-' matches only the file name `-'. */
5740 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5741 || (strlen (cp->suffix) < length
5742 /* See if the suffix matches the end of NAME. */
5743 && ((!strcmp (cp->suffix,
5744 name + length - strlen (cp->suffix))
5745 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5746 && !strcasecmp (cp->suffix,
5747 name + length - strlen (cp->suffix)))
5753 if (cp >= compilers)
5755 if (cp->spec[0] != '@')
5756 /* A non-alias entry: return it. */
5759 /* An alias entry maps a suffix to a language.
5760 Search for the language; pass 0 for NAME and LENGTH
5761 to avoid infinite recursion if language not found. */
5762 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5768 save_string (s, len)
5772 register char *result = xmalloc (len + 1);
5774 memcpy (result, s, len);
5780 pfatal_with_name (name)
5783 perror_with_name (name);
5784 delete_temp_files ();
5789 perror_with_name (name)
5792 error ("%s: %s", name, xstrerror (errno));
5796 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5797 const char *errmsg_fmt;
5798 const char *errmsg_arg;
5802 int save_errno = errno;
5804 /* Space for trailing '\0' is in %s. */
5805 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5806 sprintf (msg, errmsg_fmt, errmsg_arg);
5812 pfatal_with_name (errmsg_fmt);
5815 /* Output an error message and exit */
5820 fatal ("Internal gcc abort.");
5823 /* Output an error message and exit */
5826 fatal VPARAMS ((const char *msgid, ...))
5828 #ifndef ANSI_PROTOTYPES
5833 VA_START (ap, msgid);
5835 #ifndef ANSI_PROTOTYPES
5836 msgid = va_arg (ap, const char *);
5839 fprintf (stderr, "%s: ", programname);
5840 vfprintf (stderr, _(msgid), ap);
5842 fprintf (stderr, "\n");
5843 delete_temp_files ();
5848 error VPARAMS ((const char *msgid, ...))
5850 #ifndef ANSI_PROTOTYPES
5855 VA_START (ap, msgid);
5857 #ifndef ANSI_PROTOTYPES
5858 msgid = va_arg (ap, const char *);
5861 fprintf (stderr, "%s: ", programname);
5862 vfprintf (stderr, _(msgid), ap);
5865 fprintf (stderr, "\n");
5869 notice VPARAMS ((const char *msgid, ...))
5871 #ifndef ANSI_PROTOTYPES
5876 VA_START (ap, msgid);
5878 #ifndef ANSI_PROTOTYPES
5879 msgid = va_arg (ap, const char *);
5882 vfprintf (stderr, _(msgid), ap);
5887 validate_all_switches ()
5889 struct compiler *comp;
5890 register const char *p;
5892 struct spec_list *spec;
5894 for (comp = compilers; comp->spec; comp++)
5898 if (c == '%' && *p == '{')
5899 /* We have a switch spec. */
5900 validate_switches (p + 1);
5903 /* Look through the linked list of specs read from the specs file. */
5904 for (spec = specs; spec; spec = spec->next)
5906 p = *(spec->ptr_spec);
5908 if (c == '%' && *p == '{')
5909 /* We have a switch spec. */
5910 validate_switches (p + 1);
5913 p = link_command_spec;
5915 if (c == '%' && *p == '{')
5916 /* We have a switch spec. */
5917 validate_switches (p + 1);
5920 /* Look at the switch-name that comes after START
5921 and mark as valid all supplied switches that match it. */
5924 validate_switches (start)
5927 register const char *p = start;
5944 while (*p != ':' && *p != '}' && *p != '|')
5949 else if (p[-1] == '*')
5951 /* Mark all matching switches as valid. */
5952 for (i = 0; i < n_switches; i++)
5953 if (!strncmp (switches[i].part1, filter, p - filter - 1))
5954 switches[i].validated = 1;
5958 /* Mark an exact matching switch as valid. */
5959 for (i = 0; i < n_switches; i++)
5961 if (!strncmp (switches[i].part1, filter, p - filter)
5962 && switches[i].part1[p - filter] == 0)
5963 switches[i].validated = 1;
5971 /* Check whether a particular argument was used. The first time we
5972 canonicalize the switches to keep only the ones we care about. */
5982 const char *replace;
5987 static struct mswitchstr *mswitches;
5988 static int n_mswitches;
5993 struct mswitchstr *matches;
5997 /* Break multilib_matches into the component strings of string
5998 and replacement string. */
5999 for (q = multilib_matches; *q != '\0'; q++)
6004 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6006 q = multilib_matches;
6016 matches[i].len = q - matches[i].str;
6018 matches[i].replace = ++q;
6019 while (*q != ';' && *q != '\0')
6025 matches[i].rep_len = q - matches[i].replace;
6031 /* Now build a list of the replacement string for switches that we care
6032 about. Make sure we allocate at least one entry. This prevents
6033 xmalloc from calling fatal, and prevents us from re-executing this
6036 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6037 * (n_switches ? n_switches : 1));
6038 for (i = 0; i < n_switches; i++)
6040 int xlen = strlen (switches[i].part1);
6041 for (j = 0; j < cnt; j++)
6042 if (xlen == matches[j].len
6043 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6045 mswitches[n_mswitches].str = matches[j].replace;
6046 mswitches[n_mswitches].len = matches[j].rep_len;
6047 mswitches[n_mswitches].replace = (char *) 0;
6048 mswitches[n_mswitches].rep_len = 0;
6055 for (i = 0; i < n_mswitches; i++)
6056 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6063 default_arg (p, len)
6067 const char *start, *end;
6069 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6071 while (*start == ' ' || *start == '\t')
6077 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6080 if ((end - start) == len && strncmp (p, start, len) == 0)
6090 /* Work out the subdirectory to use based on the options. The format of
6091 multilib_select is a list of elements. Each element is a subdirectory
6092 name followed by a list of options followed by a semicolon. The format
6093 of multilib_exclusions is the same, but without the preceding
6094 directory. First gcc will check the exclusions, if none of the options
6095 beginning with an exclamation point are present, and all of the other
6096 options are present, then we will ignore this completely. Passing
6097 that, gcc will consider each multilib_select in turn using the same
6098 rules for matching the options. If a match is found, that subdirectory
6105 unsigned int this_path_len;
6106 const char *this_path, *this_arg;
6110 p = multilib_exclusions;
6113 /* Ignore newlines. */
6120 /* Check the arguments. */
6134 while (*p != ' ' && *p != ';')
6141 if (*this_arg != '!')
6149 ok = used_arg (this_arg, p - this_arg);
6163 p = multilib_select;
6166 /* Ignore newlines. */
6173 /* Get the initial path. */
6181 this_path_len = p - this_path;
6183 /* Check the arguments. */
6198 while (*p != ' ' && *p != ';')
6205 if (*this_arg != '!')
6213 /* If this is a default argument, we can just ignore it.
6214 This is true even if this_arg begins with '!'. Beginning
6215 with '!' does not mean that this argument is necessarily
6216 inappropriate for this library: it merely means that
6217 there is a more specific library which uses this
6218 argument. If this argument is a default, we need not
6219 consider that more specific library. */
6220 if (! default_arg (this_arg, p - this_arg))
6222 ok = used_arg (this_arg, p - this_arg);
6233 if (this_path_len != 1
6234 || this_path[0] != '.')
6236 char *new_multilib_dir = xmalloc (this_path_len + 1);
6237 strncpy (new_multilib_dir, this_path, this_path_len);
6238 new_multilib_dir[this_path_len] = '\0';
6239 multilib_dir = new_multilib_dir;
6248 /* Print out the multiple library subdirectory selection
6249 information. This prints out a series of lines. Each line looks
6250 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6251 required. Only the desired options are printed out, the negative
6252 matches. The options are print without a leading dash. There are
6253 no spaces to make it easy to use the information in the shell.
6254 Each subdirectory is printed only once. This assumes the ordering
6255 generated by the genmultilib script. Also, we leave out ones that match
6259 print_multilib_info ()
6261 const char *p = multilib_select;
6262 const char *last_path = 0, *this_path;
6264 unsigned int last_path_len = 0;
6269 /* Ignore newlines. */
6276 /* Get the initial path. */
6285 /* Check for matches with the multilib_exclusions. We don't bother
6286 with the '!' in either list. If any of the exclusion rules match
6287 all of its options with the select rule, we skip it. */
6289 const char *e = multilib_exclusions;
6290 const char *this_arg;
6295 /* Ignore newlines. */
6302 /* Check the arguments. */
6319 while (*e != ' ' && *e != ';')
6330 int len = e - this_arg;
6337 while (*q != ' ' && *q != ';')
6344 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6345 default_arg (this_arg, e - this_arg))
6375 /* If this is a duplicate, skip it. */
6376 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6377 && ! strncmp (last_path, this_path, last_path_len));
6379 last_path = this_path;
6380 last_path_len = p - this_path;
6383 /* If this directory requires any default arguments, we can skip
6384 it. We will already have printed a directory identical to
6385 this one which does not require that default argument. */
6403 while (*q != ' ' && *q != ';')
6411 && default_arg (arg, q - arg))
6426 for (p1 = last_path; p1 < p; p1++)
6445 use_arg = *p != '!';
6450 while (*p != ' ' && *p != ';')
6465 /* If there are extra options, print them now. */
6466 if (multilib_extra && *multilib_extra)
6468 int print_at = TRUE;
6471 for (q = multilib_extra; *q != '\0'; q++)