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 whether we should report subprocess execution times
140 (if this is supported by the system - see pexecute.c). */
142 static int report_times;
144 /* Nonzero means write "temp" files in source directory
145 and use the source file's name in them, and don't delete them. */
147 static int save_temps_flag;
149 /* The compiler version. */
151 static const char *compiler_version;
153 /* The target version specified with -V */
155 static const char *spec_version = DEFAULT_TARGET_VERSION;
157 /* The target machine specified with -b. */
159 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
161 /* Nonzero if cross-compiling.
162 When -b is used, the value comes from the `specs' file. */
165 static const char *cross_compile = "1";
167 static const char *cross_compile = "0";
170 #ifdef MODIFY_TARGET_NAME
172 /* Information on how to alter the target name based on a command-line
173 switch. The only case we support now is simply appending or deleting a
174 string to or from the end of the first part of the configuration name. */
179 enum add_del {ADD, DELETE} add_del;
182 modify_target[] = MODIFY_TARGET_NAME;
185 /* The number of errors that have occurred; the link phase will not be
186 run if this is non-zero. */
187 static int error_count = 0;
189 /* Greatest exit code of sub-processes that has been encountered up to
191 static int greatest_status = 1;
193 /* This is the obstack which we use to allocate many strings. */
195 static struct obstack obstack;
197 /* This is the obstack to build an environment variable to pass to
198 collect2 that describes all of the relevant switches of what to
199 pass the compiler in building the list of pointers to constructors
202 static struct obstack collect_obstack;
204 /* These structs are used to collect resource usage information for
206 #ifdef HAVE_GETRUSAGE
207 static struct rusage rus, prus;
210 /* Forward declaration for prototypes. */
213 static void init_spec PARAMS ((void));
215 static char **split_directories PARAMS ((const char *, int *));
216 static void free_split_directories PARAMS ((char **));
217 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
219 static void store_arg PARAMS ((const char *, int, int));
220 static char *load_specs PARAMS ((const char *));
221 static void read_specs PARAMS ((const char *, int));
222 static void set_spec PARAMS ((const char *, const char *));
223 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
224 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
225 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
226 static int access_check PARAMS ((const char *, int));
227 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
228 static void add_prefix PARAMS ((struct path_prefix *, const char *,
229 const char *, int, int, int *));
230 static void translate_options PARAMS ((int *, const char *const **));
231 static char *skip_whitespace PARAMS ((char *));
232 static void record_temp_file PARAMS ((const char *, int, int));
233 static void delete_if_ordinary PARAMS ((const char *));
234 static void delete_temp_files PARAMS ((void));
235 static void delete_failure_queue PARAMS ((void));
236 static void clear_failure_queue PARAMS ((void));
237 static int check_live_switch PARAMS ((int, int));
238 static const char *handle_braces PARAMS ((const char *));
239 static char *save_string PARAMS ((const char *, int));
240 static int do_spec_1 PARAMS ((const char *, int, const char *));
241 static const char *find_file PARAMS ((const char *));
242 static int is_directory PARAMS ((const char *, const char *, int));
243 static void validate_switches PARAMS ((const char *));
244 static void validate_all_switches PARAMS ((void));
245 static void give_switch PARAMS ((int, int, int));
246 static int used_arg PARAMS ((const char *, int));
247 static int default_arg PARAMS ((const char *, int));
248 static void set_multilib_dir PARAMS ((void));
249 static void print_multilib_info PARAMS ((void));
250 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
251 static void perror_with_name PARAMS ((const char *));
252 static void pfatal_pexecute PARAMS ((const char *, const char *))
254 static void error PARAMS ((const char *, ...))
256 static void notice PARAMS ((const char *, ...))
258 static void display_help PARAMS ((void));
259 static void add_preprocessor_option PARAMS ((const char *, int));
260 static void add_assembler_option PARAMS ((const char *, int));
261 static void add_linker_option PARAMS ((const char *, int));
262 static void process_command PARAMS ((int, const char *const *));
263 static int execute PARAMS ((void));
264 static void clear_args PARAMS ((void));
265 static void fatal_error PARAMS ((int));
266 static void set_input PARAMS ((const char *));
268 /* Specs are strings containing lines, each of which (if not blank)
269 is made up of a program name, and arguments separated by spaces.
270 The program name must be exact and start from root, since no path
271 is searched and it is unreliable to depend on the current working directory.
272 Redirection of input or output is not supported; the subprograms must
273 accept filenames saying what files to read and write.
275 In addition, the specs can contain %-sequences to substitute variable text
276 or for conditional text. Here is a table of all defined %-sequences.
277 Note that spaces are not generated automatically around the results of
278 expanding these sequences; therefore, you can concatenate them together
279 or with constant text in a single argument.
281 %% substitute one % into the program name or argument.
282 %i substitute the name of the input file being processed.
283 %b substitute the basename of the input file being processed.
284 This is the substring up to (and not including) the last period
285 and not including the directory.
286 %B same as %b, but include the file suffix (text after the last period).
288 substitute a file name that has suffix SUFFIX and is chosen
289 once per compilation, and mark the argument a la %d. To reduce
290 exposure to denial-of-service attacks, the file name is now
291 chosen in a way that is hard to predict even when previously
292 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
293 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
294 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
295 had been pre-processed. Previously, %g was simply substituted
296 with a file name chosen once per compilation, without regard
297 to any appended suffix (which was therefore treated just like
298 ordinary text), making such attacks more likely to succeed.
300 like %g, but generates a new temporary file name even if %uSUFFIX
303 substitutes the last file name generated with %uSUFFIX, generating a
304 new one if there is no such last file name. In the absence of any
305 %uSUFFIX, this is just like %gSUFFIX, except they don't share
306 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
307 would involve the generation of two distinct file names, one
308 for each `%g.s' and another for each `%U.s'. Previously, %U was
309 simply substituted with a file name chosen for the previous %u,
310 without regard to any appended suffix.
312 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
313 writable, and if save-temps is off; otherwise, substitute the name
314 of a temporary file, just like %u. This temporary file is not
315 meant for communication between processes, but rather as a junk
317 %d marks the argument containing or following the %d as a
318 temporary file name, so that that file will be deleted if CC exits
319 successfully. Unlike %g, this contributes no text to the argument.
320 %w marks the argument containing or following the %w as the
321 "output file" of this compilation. This puts the argument
322 into the sequence of arguments that %o will substitute later.
324 like %{...} but mark last argument supplied within
325 as a file to be deleted on failure.
326 %o substitutes the names of all the output files, with spaces
327 automatically placed around them. You should write spaces
328 around the %o as well or the results are undefined.
329 %o is for use in the specs for running the linker.
330 Input files whose names have no recognized suffix are not compiled
331 at all, but they are included among the output files, so they will
333 %O substitutes the suffix for object files. Note that this is
334 handled specially when it immediately follows %g, %u, or %U
335 (with or without a suffix argument) because of the need for
336 those to form complete file names. The handling is such that
337 %O is treated exactly as if it had already been substituted,
338 except that %g, %u, and %U do not currently support additional
339 SUFFIX characters following %O as they would following, for
341 %p substitutes the standard macro predefinitions for the
342 current target machine. Use this when running cpp.
343 %P like %p, but puts `__' before and after the name of each macro.
344 (Except macros that already have __.)
346 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
347 %s current argument is the name of a library or startup file of some sort.
348 Search for that file in a standard list of directories
349 and substitute the full name found.
350 %eSTR Print STR as an error message. STR is terminated by a newline.
351 Use this when inconsistent options are detected.
352 %x{OPTION} Accumulate an option for %X.
353 %X Output the accumulated linker options specified by compilations.
354 %Y Output the accumulated assembler options specified by compilations.
355 %Z Output the accumulated preprocessor options specified by compilations.
356 %v1 Substitute the major version number of GCC.
357 (For version 2.5.3, this is 2.)
358 %v2 Substitute the minor version number of GCC.
359 (For version 2.5.3, this is 5.)
360 %v3 Substitute the patch level number of GCC.
361 (For version 2.5.3, this is 3.)
362 %a process ASM_SPEC as a spec.
363 This allows config.h to specify part of the spec for running as.
364 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
365 used here. This can be used to run a post-processor after the
366 assembler has done its job.
367 %D Dump out a -L option for each directory in startfile_prefixes.
368 If multilib_dir is set, extra entries are generated with it affixed.
369 %l process LINK_SPEC as a spec.
370 %L process LIB_SPEC as a spec.
371 %G process LIBGCC_SPEC as a spec.
372 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
373 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
374 %c process SIGNED_CHAR_SPEC as a spec.
375 %C process CPP_SPEC as a spec. A capital C is actually used here.
376 %1 process CC1_SPEC as a spec.
377 %2 process CC1PLUS_SPEC as a spec.
378 %| output "-" if the input for the current command is coming from a pipe.
379 %* substitute the variable part of a matched option. (See below.)
380 Note that each comma in the substituted string is replaced by
382 %{S} substitutes the -S switch, if that switch was given to CC.
383 If that switch was not specified, this substitutes nothing.
384 Here S is a metasyntactic variable.
385 %{S*} substitutes all the switches specified to CC whose names start
386 with -S. This is used for -o, -D, -I, etc; switches that take
387 arguments. CC considers `-o foo' as being one switch whose
388 name starts with `o'. %{o*} would substitute this text,
389 including the space; thus, two arguments would be generated.
390 %{^S*} likewise, but don't put a blank between a switch and any args.
391 %{S*:X} substitutes X if one or more switches whose names start with -S are
392 specified to CC. Note that the tail part of the -S option
393 (i.e. the part matched by the `*') will be substituted for each
394 occurrence of %* within X.
395 %{<S} remove all occurences of -S from the command line.
396 Note - this option is position dependent. % commands in the
397 spec string before this option will see -S, % commands in the
398 spec string after this option will not.
399 %{S:X} substitutes X, but only if the -S switch was given to CC.
400 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
401 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
402 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
403 %{.S:X} substitutes X, but only if processing a file with suffix S.
404 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
405 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
406 combined with ! and . as above binding stronger than the OR.
407 %(Spec) processes a specification defined in a specs file as *Spec:
408 %[Spec] as above, but put __ around -D arguments
410 The conditional text X in a %{S:X} or %{!S:X} construct may contain
411 other nested % constructs or spaces, or even newlines. They are
412 processed as usual, as described above.
414 The -O, -f, -m, and -W switches are handled specifically in these
415 constructs. If another value of -O or the negated form of a -f, -m, or
416 -W switch is found later in the command line, the earlier switch
417 value is ignored, except with {S*} where S is just one letter; this
418 passes all matching options.
420 The character | at the beginning of the predicate text is used to indicate
421 that a command should be piped to the following command, but only if -pipe
424 Note that it is built into CC which switches take arguments and which
425 do not. You might think it would be useful to generalize this to
426 allow each compiler's spec to say which switches take arguments. But
427 this cannot be done in a consistent fashion. CC cannot even decide
428 which input files have been specified without knowing which switches
429 take arguments, and it must know which input files to compile in order
430 to tell which compilers to run.
432 CC also knows implicitly that arguments starting in `-l' are to be
433 treated as compiler output files, and passed to the linker in their
434 proper position among the other output files. */
436 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
438 /* config.h can define ASM_SPEC to provide extra args to the assembler
439 or extra switch-translations. */
444 /* config.h can define ASM_FINAL_SPEC to run a post processor after
445 the assembler has run. */
446 #ifndef ASM_FINAL_SPEC
447 #define ASM_FINAL_SPEC ""
450 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
451 or extra switch-translations. */
456 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
457 or extra switch-translations. */
462 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
463 or extra switch-translations. */
465 #define CC1PLUS_SPEC ""
468 /* config.h can define LINK_SPEC to provide extra args to the linker
469 or extra switch-translations. */
474 /* config.h can define LIB_SPEC to override the default libraries. */
476 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
479 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
482 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
483 /* Have gcc do the search for libgcc.a. */
484 #define LIBGCC_SPEC "libgcc.a%s"
486 #define LIBGCC_SPEC "-lgcc"
490 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
491 #ifndef STARTFILE_SPEC
492 #define STARTFILE_SPEC \
493 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
496 /* config.h can define SWITCHES_NEED_SPACES to control which options
497 require spaces between the option and the argument. */
498 #ifndef SWITCHES_NEED_SPACES
499 #define SWITCHES_NEED_SPACES ""
502 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
504 #define ENDFILE_SPEC ""
507 /* This spec is used for telling cpp whether char is signed or not. */
508 #ifndef SIGNED_CHAR_SPEC
509 /* Use #if rather than ?:
510 because MIPS C compiler rejects like ?: in initializers. */
511 #if DEFAULT_SIGNED_CHAR
512 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
514 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
519 #define LINKER_NAME "collect2"
522 /* Here is the spec for running the linker, after compiling all files. */
524 /* -u* was put back because both BSD and SysV seem to support it. */
525 /* %{static:} simply prevents an error message if the target machine
526 doesn't handle -static. */
527 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
528 scripts which exist in user specified directories, or in standard
530 #ifndef LINK_COMMAND_SPEC
531 #define LINK_COMMAND_SPEC "\
532 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
533 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
534 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
535 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
536 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
539 #ifndef LINK_LIBGCC_SPEC
540 # ifdef LINK_LIBGCC_SPECIAL
541 /* Don't generate -L options for startfile prefix list. */
542 # define LINK_LIBGCC_SPEC ""
544 /* Do generate them. */
545 # define LINK_LIBGCC_SPEC "%D"
549 static const char *cpp_spec = CPP_SPEC;
550 static const char *cpp_predefines = CPP_PREDEFINES;
551 static const char *cc1_spec = CC1_SPEC;
552 static const char *cc1plus_spec = CC1PLUS_SPEC;
553 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
554 static const char *asm_spec = ASM_SPEC;
555 static const char *asm_final_spec = ASM_FINAL_SPEC;
556 static const char *link_spec = LINK_SPEC;
557 static const char *lib_spec = LIB_SPEC;
558 static const char *libgcc_spec = LIBGCC_SPEC;
559 static const char *endfile_spec = ENDFILE_SPEC;
560 static const char *startfile_spec = STARTFILE_SPEC;
561 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
562 static const char *linker_name_spec = LINKER_NAME;
563 static const char *link_command_spec = LINK_COMMAND_SPEC;
564 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
566 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
567 There should be no need to override these in target dependent files,
568 but we need to copy them to the specs file so that newer versions
569 of the GCC driver can correctly drive older tool chains with the
570 appropriate -B options. */
572 static const char *trad_capable_cpp =
573 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
575 static const char *cpp_options =
576 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
577 %{std*} %{nostdinc*}\
578 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
579 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
580 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
581 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
582 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
583 %{ffast-math:-D__FAST_MATH__}\
584 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
585 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
586 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
587 %{fshow-column} %{fno-show-column}\
588 %{fleading-underscore} %{fno-leading-underscore}\
590 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{U*} %{D*} %{i*} %Z %i\
591 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
593 /* NB: This is shared amongst all front-ends. */
594 static const char *cc1_options =
595 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
596 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
597 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
598 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
599 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
600 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
601 %{fsyntax-only:-o %j}";
603 static const char *asm_options =
604 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
606 static const char *invoke_as =
607 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
609 /* Some compilers have limits on line lengths, and the multilib_select
610 and/or multilib_matches strings can be very long, so we build them at
612 static struct obstack multilib_obstack;
613 static const char *multilib_select;
614 static const char *multilib_matches;
615 static const char *multilib_defaults;
616 static const char *multilib_exclusions;
617 #include "multilib.h"
619 /* Check whether a particular argument is a default argument. */
621 #ifndef MULTILIB_DEFAULTS
622 #define MULTILIB_DEFAULTS { "" }
625 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
629 struct user_specs *next;
630 const char *filename;
633 static struct user_specs *user_specs_head, *user_specs_tail;
635 /* This defines which switch letters take arguments. */
637 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
638 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
639 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
640 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
641 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
642 || (CHAR) == 'B' || (CHAR) == 'b')
644 #ifndef SWITCH_TAKES_ARG
645 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
648 /* This defines which multi-letter switches take arguments. */
650 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
651 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
652 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
653 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
654 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
655 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
656 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
657 || !strcmp (STR, "MF") || !strcmp (STR, "MT"))
659 #ifndef WORD_SWITCH_TAKES_ARG
660 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
663 #ifdef HAVE_EXECUTABLE_SUFFIX
664 /* This defines which switches stop a full compilation. */
665 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
666 ((CHAR) == 'c' || (CHAR) == 'S')
668 #ifndef SWITCH_CURTAILS_COMPILATION
669 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
670 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
674 /* Record the mapping from file suffixes for compilation specs. */
678 const char *suffix; /* Use this compiler for input files
679 whose names end in this suffix. */
681 const char *spec; /* To use this compiler, run this spec. */
684 /* Pointer to a vector of `struct compiler' that gives the spec for
685 compiling a file, based on its suffix.
686 A file that does not end in any of these suffixes will be passed
687 unchanged to the loader and nothing else will be done to it.
689 An entry containing two 0s is used to terminate the vector.
691 If multiple entries match a file, the last matching one is used. */
693 static struct compiler *compilers;
695 /* Number of entries in `compilers', not counting the null terminator. */
697 static int n_compilers;
699 /* The default list of file name suffixes and their compilation specs. */
701 static struct compiler default_compilers[] =
703 /* Add lists of suffixes of known languages here. If those languages
704 were not present when we built the driver, we will hit these copies
705 and be given a more meaningful error than "file not used since
706 linking is not done". */
707 {".m", "#Objective-C"},
708 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
709 {".c++", "#C++"}, {".C", "#C++"},
710 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
711 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
712 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
713 {".p", "#Pascal"}, {".pas", "#Pascal"},
714 {".ch", "#Chill"}, {".chi", "#Chill"},
715 {".java", "#Java"}, {".class", "#Java"},
716 {".zip", "#Java"}, {".jar", "#Java"},
717 /* Next come the entries for C. */
721 /* cc1 has an integrated ISO C preprocessor. We should invoke the
722 external preprocessor if -save-temps or -traditional is given. */
723 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
725 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
726 %(cpp_options) %b.i \n\
727 cc1 -fpreprocessed %b.i %(cc1_options)}\
729 %{traditional|ftraditional|traditional-cpp:\
730 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
731 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
732 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
733 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
734 %{!fsyntax-only:%(invoke_as)}}}}"
735 #else /* ! USE_CPPLIB */
736 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
737 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
738 cc1 %{!pipe:%g.i} %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"
739 #endif /* ! USE_CPPLIB */
742 "%{!E:%e-E required when input is from standard input}\
743 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
746 "%{!E:%eCompilation of header file requested} \
747 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
748 {".i", "@cpp-output"},
750 "%{!M:%{!MM:%{!E:cc1 %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
751 {".s", "@assembler"},
753 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
754 {".S", "@assembler-with-cpp"},
755 {"@assembler-with-cpp",
756 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
757 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
759 /* Mark end of table */
763 /* Number of elements in default_compilers, not counting the terminator. */
765 static int n_default_compilers
766 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
768 /* A vector of options to give to the linker.
769 These options are accumulated by %x,
770 and substituted into the linker command with %X. */
771 static int n_linker_options;
772 static char **linker_options;
774 /* A vector of options to give to the assembler.
775 These options are accumulated by -Wa,
776 and substituted into the assembler command with %Y. */
777 static int n_assembler_options;
778 static char **assembler_options;
780 /* A vector of options to give to the preprocessor.
781 These options are accumulated by -Wp,
782 and substituted into the preprocessor command with %Z. */
783 static int n_preprocessor_options;
784 static char **preprocessor_options;
786 /* Define how to map long options into short ones. */
788 /* This structure describes one mapping. */
791 /* The long option's name. */
793 /* The equivalent short option. */
794 const char *equivalent;
795 /* Argument info. A string of flag chars; NULL equals no options.
796 a => argument required.
797 o => argument optional.
798 j => join argument to equivalent, making one word.
799 * => require other text after NAME as an argument. */
800 const char *arg_info;
803 /* This is the table of mappings. Mappings are tried sequentially
804 for each option encountered; the first one that matches, wins. */
806 struct option_map option_map[] =
808 {"--all-warnings", "-Wall", 0},
809 {"--ansi", "-ansi", 0},
810 {"--assemble", "-S", 0},
811 {"--assert", "-A", "a"},
812 {"--classpath", "-fclasspath=", "aj"},
813 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
814 {"--comments", "-C", 0},
815 {"--compile", "-c", 0},
816 {"--debug", "-g", "oj"},
817 {"--define-macro", "-D", "aj"},
818 {"--dependencies", "-M", 0},
819 {"--dump", "-d", "a"},
820 {"--dumpbase", "-dumpbase", "a"},
821 {"--entry", "-e", 0},
822 {"--extra-warnings", "-W", 0},
823 {"--for-assembler", "-Wa", "a"},
824 {"--for-linker", "-Xlinker", "a"},
825 {"--force-link", "-u", "a"},
826 {"--imacros", "-imacros", "a"},
827 {"--include", "-include", "a"},
828 {"--include-barrier", "-I-", 0},
829 {"--include-directory", "-I", "aj"},
830 {"--include-directory-after", "-idirafter", "a"},
831 {"--include-prefix", "-iprefix", "a"},
832 {"--include-with-prefix", "-iwithprefix", "a"},
833 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
834 {"--include-with-prefix-after", "-iwithprefix", "a"},
835 {"--language", "-x", "a"},
836 {"--library-directory", "-L", "a"},
837 {"--machine", "-m", "aj"},
838 {"--machine-", "-m", "*j"},
839 {"--no-line-commands", "-P", 0},
840 {"--no-precompiled-includes", "-noprecomp", 0},
841 {"--no-standard-includes", "-nostdinc", 0},
842 {"--no-standard-libraries", "-nostdlib", 0},
843 {"--no-warnings", "-w", 0},
844 {"--optimize", "-O", "oj"},
845 {"--output", "-o", "a"},
846 {"--output-class-directory", "-foutput-class-dir=", "ja"},
847 {"--pedantic", "-pedantic", 0},
848 {"--pedantic-errors", "-pedantic-errors", 0},
849 {"--pipe", "-pipe", 0},
850 {"--prefix", "-B", "a"},
851 {"--preprocess", "-E", 0},
852 {"--print-search-dirs", "-print-search-dirs", 0},
853 {"--print-file-name", "-print-file-name=", "aj"},
854 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
855 {"--print-missing-file-dependencies", "-MG", 0},
856 {"--print-multi-lib", "-print-multi-lib", 0},
857 {"--print-multi-directory", "-print-multi-directory", 0},
858 {"--print-prog-name", "-print-prog-name=", "aj"},
859 {"--profile", "-p", 0},
860 {"--profile-blocks", "-a", 0},
861 {"--quiet", "-q", 0},
862 {"--save-temps", "-save-temps", 0},
863 {"--shared", "-shared", 0},
864 {"--silent", "-q", 0},
865 {"--specs", "-specs=", "aj"},
866 {"--static", "-static", 0},
867 {"--std", "-std=", "aj"},
868 {"--symbolic", "-symbolic", 0},
869 {"--target", "-b", "a"},
870 {"--time", "-time", 0},
871 {"--trace-includes", "-H", 0},
872 {"--traditional", "-traditional", 0},
873 {"--traditional-cpp", "-traditional-cpp", 0},
874 {"--trigraphs", "-trigraphs", 0},
875 {"--undefine-macro", "-U", "aj"},
876 {"--use-version", "-V", "a"},
877 {"--user-dependencies", "-MM", 0},
878 {"--verbose", "-v", 0},
879 {"--version", "-dumpversion", 0},
880 {"--warn-", "-W", "*j"},
881 {"--write-dependencies", "-MD", 0},
882 {"--write-user-dependencies", "-MMD", 0},
886 /* Translate the options described by *ARGCP and *ARGVP.
887 Make a new vector and store it back in *ARGVP,
888 and store its length in *ARGVC. */
891 translate_options (argcp, argvp)
893 const char *const **argvp;
897 const char *const *argv = *argvp;
899 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
903 newv[newindex++] = argv[i++];
907 /* Translate -- options. */
908 if (argv[i][0] == '-' && argv[i][1] == '-')
911 /* Find a mapping that applies to this option. */
912 for (j = 0; j < ARRAY_SIZE (option_map); j++)
914 size_t optlen = strlen (option_map[j].name);
915 size_t arglen = strlen (argv[i]);
916 size_t complen = arglen > optlen ? optlen : arglen;
917 const char *arginfo = option_map[j].arg_info;
922 if (!strncmp (argv[i], option_map[j].name, complen))
929 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
930 if (strlen (option_map[k].name) >= arglen
931 && !strncmp (argv[i], option_map[k].name, arglen))
933 error ("Ambiguous abbreviation %s", argv[i]);
937 if (k != ARRAY_SIZE (option_map))
943 /* If the option has an argument, accept that. */
944 if (argv[i][optlen] == '=')
945 arg = argv[i] + optlen + 1;
947 /* If this mapping requires extra text at end of name,
948 accept that as "argument". */
949 else if (strchr (arginfo, '*') != 0)
950 arg = argv[i] + optlen;
952 /* Otherwise, extra text at end means mismatch.
953 Try other mappings. */
958 else if (strchr (arginfo, '*') != 0)
960 error ("Incomplete `%s' option", option_map[j].name);
964 /* Handle arguments. */
965 if (strchr (arginfo, 'a') != 0)
971 error ("Missing argument to `%s' option",
979 else if (strchr (arginfo, '*') != 0)
981 else if (strchr (arginfo, 'o') == 0)
984 error ("Extraneous argument to `%s' option",
989 /* Store the translation as one argv elt or as two. */
990 if (arg != 0 && strchr (arginfo, 'j') != 0)
991 newv[newindex++] = concat (option_map[j].equivalent, arg,
995 newv[newindex++] = option_map[j].equivalent;
996 newv[newindex++] = arg;
999 newv[newindex++] = option_map[j].equivalent;
1007 /* Handle old-fashioned options--just copy them through,
1008 with their arguments. */
1009 else if (argv[i][0] == '-')
1011 const char *p = argv[i] + 1;
1015 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1016 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1017 else if (WORD_SWITCH_TAKES_ARG (p))
1018 nskip += WORD_SWITCH_TAKES_ARG (p);
1019 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1022 else if (! strcmp (p, "Xlinker"))
1025 /* Watch out for an option at the end of the command line that
1026 is missing arguments, and avoid skipping past the end of the
1028 if (nskip + i > argc)
1033 newv[newindex++] = argv[i++];
1038 /* Ordinary operands, or +e options. */
1039 newv[newindex++] = argv[i++];
1054 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1055 be considered whitespace. */
1056 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1058 else if (*p == '\n' || *p == ' ' || *p == '\t')
1072 /* Structures to keep track of prefixes to try when looking for files. */
1076 char *prefix; /* String to prepend to the path. */
1077 struct prefix_list *next; /* Next in linked list. */
1078 int require_machine_suffix; /* Don't use without machine_suffix. */
1079 /* 2 means try both machine_suffix and just_machine_suffix. */
1080 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1081 int priority; /* Sort key - priority within list */
1086 struct prefix_list *plist; /* List of prefixes to try */
1087 int max_len; /* Max length of a prefix in PLIST */
1088 const char *name; /* Name of this list (used in config stuff) */
1091 /* List of prefixes to try when looking for executables. */
1093 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1095 /* List of prefixes to try when looking for startup (crt0) files. */
1097 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1099 /* List of prefixes to try when looking for include files. */
1101 static struct path_prefix include_prefixes = { 0, 0, "include" };
1103 /* Suffix to attach to directories searched for commands.
1104 This looks like `MACHINE/VERSION/'. */
1106 static const char *machine_suffix = 0;
1108 /* Suffix to attach to directories searched for commands.
1109 This is just `MACHINE/'. */
1111 static const char *just_machine_suffix = 0;
1113 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1115 static const char *gcc_exec_prefix;
1117 /* Default prefixes to attach to command names. */
1119 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1120 #undef MD_EXEC_PREFIX
1121 #undef MD_STARTFILE_PREFIX
1122 #undef MD_STARTFILE_PREFIX_1
1125 /* If no prefixes defined, use the null string, which will disable them. */
1126 #ifndef MD_EXEC_PREFIX
1127 #define MD_EXEC_PREFIX ""
1129 #ifndef MD_STARTFILE_PREFIX
1130 #define MD_STARTFILE_PREFIX ""
1132 #ifndef MD_STARTFILE_PREFIX_1
1133 #define MD_STARTFILE_PREFIX_1 ""
1136 /* Supply defaults for the standard prefixes. */
1138 #ifndef STANDARD_EXEC_PREFIX
1139 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1141 #ifndef STANDARD_STARTFILE_PREFIX
1142 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1144 #ifndef TOOLDIR_BASE_PREFIX
1145 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1147 #ifndef STANDARD_BINDIR_PREFIX
1148 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1151 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1152 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1153 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1155 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1156 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1157 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1158 static const char *standard_startfile_prefix_1 = "/lib/";
1159 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1161 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1162 static const char *tooldir_prefix;
1164 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1166 /* Subdirectory to use for locating libraries. Set by
1167 set_multilib_dir based on the compilation options. */
1169 static const char *multilib_dir;
1171 /* Structure to keep track of the specs that have been defined so far.
1172 These are accessed using %(specname) or %[specname] in a compiler
1177 /* The following 2 fields must be first */
1178 /* to allow EXTRA_SPECS to be initialized */
1179 const char *name; /* name of the spec. */
1180 const char *ptr; /* available ptr if no static pointer */
1182 /* The following fields are not initialized */
1183 /* by EXTRA_SPECS */
1184 const char **ptr_spec; /* pointer to the spec itself. */
1185 struct spec_list *next; /* Next spec in linked list. */
1186 int name_len; /* length of the name */
1187 int alloc_p; /* whether string was allocated */
1190 #define INIT_STATIC_SPEC(NAME,PTR) \
1191 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1193 /* List of statically defined specs. */
1194 static struct spec_list static_specs[] =
1196 INIT_STATIC_SPEC ("asm", &asm_spec),
1197 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1198 INIT_STATIC_SPEC ("asm_options", &asm_options),
1199 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1200 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1201 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1202 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1203 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1204 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1205 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1206 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1207 INIT_STATIC_SPEC ("link", &link_spec),
1208 INIT_STATIC_SPEC ("lib", &lib_spec),
1209 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1210 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1211 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1212 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1213 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1214 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1215 INIT_STATIC_SPEC ("version", &compiler_version),
1216 INIT_STATIC_SPEC ("multilib", &multilib_select),
1217 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1218 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1219 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1220 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1221 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1222 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1223 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1224 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1225 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1228 #ifdef EXTRA_SPECS /* additional specs needed */
1229 /* Structure to keep track of just the first two args of a spec_list.
1230 That is all that the EXTRA_SPECS macro gives us. */
1237 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1238 static struct spec_list *extra_specs = (struct spec_list *) 0;
1241 /* List of dynamically allocates specs that have been defined so far. */
1243 static struct spec_list *specs = (struct spec_list *) 0;
1245 /* Initialize the specs lookup routines. */
1250 struct spec_list *next = (struct spec_list *) 0;
1251 struct spec_list *sl = (struct spec_list *) 0;
1255 return; /* Already initialized. */
1258 notice ("Using builtin specs.\n");
1261 extra_specs = (struct spec_list *)
1262 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1264 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1266 sl = &extra_specs[i];
1267 sl->name = extra_specs_1[i].name;
1268 sl->ptr = extra_specs_1[i].ptr;
1270 sl->name_len = strlen (sl->name);
1271 sl->ptr_spec = &sl->ptr;
1276 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1278 sl = &static_specs[i];
1286 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1287 removed; If the spec starts with a + then SPEC is added to the end of the
1291 set_spec (name, spec)
1295 struct spec_list *sl;
1296 const char *old_spec;
1297 int name_len = strlen (name);
1300 /* If this is the first call, initialize the statically allocated specs. */
1303 struct spec_list *next = (struct spec_list *) 0;
1304 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1306 sl = &static_specs[i];
1313 /* See if the spec already exists. */
1314 for (sl = specs; sl; sl = sl->next)
1315 if (name_len == sl->name_len && !strcmp (sl->name, name))
1320 /* Not found - make it. */
1321 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1322 sl->name = xstrdup (name);
1323 sl->name_len = name_len;
1324 sl->ptr_spec = &sl->ptr;
1326 *(sl->ptr_spec) = "";
1331 old_spec = *(sl->ptr_spec);
1332 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1333 ? concat (old_spec, spec + 1, NULL_PTR)
1338 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1341 /* Free the old spec. */
1342 if (old_spec && sl->alloc_p)
1343 free ((PTR) old_spec);
1348 /* Accumulate a command (program name and args), and run it. */
1350 /* Vector of pointers to arguments in the current line of specifications. */
1352 static const char **argbuf;
1354 /* Number of elements allocated in argbuf. */
1356 static int argbuf_length;
1358 /* Number of elements in argbuf currently in use (containing args). */
1360 static int argbuf_index;
1362 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1363 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1366 static struct temp_name {
1367 const char *suffix; /* suffix associated with the code. */
1368 int length; /* strlen (suffix). */
1369 int unique; /* Indicates whether %g or %u/%U was used. */
1370 const char *filename; /* associated filename. */
1371 int filename_length; /* strlen (filename). */
1372 struct temp_name *next;
1375 /* Number of commands executed so far. */
1377 static int execution_count;
1379 /* Number of commands that exited with a signal. */
1381 static int signal_count;
1383 /* Name with which this program was invoked. */
1385 static const char *programname;
1387 /* Clear out the vector of arguments (after a command is executed). */
1395 /* Add one argument to the vector at the end.
1396 This is done when a space is seen or at the end of the line.
1397 If DELETE_ALWAYS is nonzero, the arg is a filename
1398 and the file should be deleted eventually.
1399 If DELETE_FAILURE is nonzero, the arg is a filename
1400 and the file should be deleted if this compilation fails. */
1403 store_arg (arg, delete_always, delete_failure)
1405 int delete_always, delete_failure;
1407 if (argbuf_index + 1 == argbuf_length)
1409 = (const char **) xrealloc (argbuf,
1410 (argbuf_length *= 2) * sizeof (const char *));
1412 argbuf[argbuf_index++] = arg;
1413 argbuf[argbuf_index] = 0;
1415 if (delete_always || delete_failure)
1416 record_temp_file (arg, delete_always, delete_failure);
1419 /* Load specs from a file name named FILENAME, replacing occurances of
1420 various different types of line-endings, \r\n, \n\r and just \r, with
1424 load_specs (filename)
1425 const char *filename;
1429 struct stat statbuf;
1436 notice ("Reading specs from %s\n", filename);
1438 /* Open and stat the file. */
1439 desc = open (filename, O_RDONLY, 0);
1441 pfatal_with_name (filename);
1442 if (stat (filename, &statbuf) < 0)
1443 pfatal_with_name (filename);
1445 /* Read contents of file into BUFFER. */
1446 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1447 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1449 pfatal_with_name (filename);
1450 buffer[readlen] = 0;
1453 specs = xmalloc (readlen + 1);
1455 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1461 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1463 else if (*(buffer_p + 1) == '\n') /* \r\n */
1477 /* Read compilation specs from a file named FILENAME,
1478 replacing the default ones.
1480 A suffix which starts with `*' is a definition for
1481 one of the machine-specific sub-specs. The "suffix" should be
1482 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1483 The corresponding spec is stored in asm_spec, etc.,
1484 rather than in the `compilers' vector.
1486 Anything invalid in the file is a fatal error. */
1489 read_specs (filename, main_p)
1490 const char *filename;
1496 buffer = load_specs (filename);
1498 /* Scan BUFFER for specs, putting them in the vector. */
1504 char *in, *out, *p1, *p2, *p3;
1506 /* Advance P in BUFFER to the next nonblank nocomment line. */
1507 p = skip_whitespace (p);
1511 /* Is this a special command that starts with '%'? */
1512 /* Don't allow this for the main specs file, since it would
1513 encourage people to overwrite it. */
1514 if (*p == '%' && !main_p)
1517 while (*p && *p != '\n')
1523 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1524 && (p1[sizeof "%include" - 1] == ' '
1525 || p1[sizeof "%include" - 1] == '\t'))
1529 p1 += sizeof ("%include");
1530 while (*p1 == ' ' || *p1 == '\t')
1533 if (*p1++ != '<' || p[-2] != '>')
1534 fatal ("specs %%include syntax malformed after %ld characters",
1535 (long) (p1 - buffer + 1));
1538 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1539 read_specs (new_filename ? new_filename : p1, FALSE);
1542 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1543 && (p1[sizeof "%include_noerr" - 1] == ' '
1544 || p1[sizeof "%include_noerr" - 1] == '\t'))
1548 p1 += sizeof "%include_noerr";
1549 while (*p1 == ' ' || *p1 == '\t')
1552 if (*p1++ != '<' || p[-2] != '>')
1553 fatal ("specs %%include syntax malformed after %ld characters",
1554 (long) (p1 - buffer + 1));
1557 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1559 read_specs (new_filename, FALSE);
1560 else if (verbose_flag)
1561 notice ("Could not find specs file %s\n", p1);
1564 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1565 && (p1[sizeof "%rename" - 1] == ' '
1566 || p1[sizeof "%rename" - 1] == '\t'))
1569 struct spec_list *sl;
1571 /* Get original name */
1572 p1 += sizeof "%rename";
1573 while (*p1 == ' ' || *p1 == '\t')
1576 if (! ISALPHA ((unsigned char) *p1))
1577 fatal ("specs %%rename syntax malformed after %ld characters",
1578 (long) (p1 - buffer));
1581 while (*p2 && !ISSPACE ((unsigned char) *p2))
1584 if (*p2 != ' ' && *p2 != '\t')
1585 fatal ("specs %%rename syntax malformed after %ld characters",
1586 (long) (p2 - buffer));
1590 while (*p2 == ' ' || *p2 == '\t')
1593 if (! ISALPHA ((unsigned char) *p2))
1594 fatal ("specs %%rename syntax malformed after %ld characters",
1595 (long) (p2 - buffer));
1597 /* Get new spec name. */
1599 while (*p3 && !ISSPACE ((unsigned char) *p3))
1603 fatal ("specs %%rename syntax malformed after %ld characters",
1604 (long) (p3 - buffer));
1607 for (sl = specs; sl; sl = sl->next)
1608 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1612 fatal ("specs %s spec was not found to be renamed", p1);
1614 if (strcmp (p1, p2) == 0)
1619 notice ("rename spec %s to %s\n", p1, p2);
1621 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1625 set_spec (p2, *(sl->ptr_spec));
1627 free ((PTR) *(sl->ptr_spec));
1629 *(sl->ptr_spec) = "";
1634 fatal ("specs unknown %% command after %ld characters",
1635 (long) (p1 - buffer));
1638 /* Find the colon that should end the suffix. */
1640 while (*p1 && *p1 != ':' && *p1 != '\n')
1643 /* The colon shouldn't be missing. */
1645 fatal ("specs file malformed after %ld characters",
1646 (long) (p1 - buffer));
1648 /* Skip back over trailing whitespace. */
1650 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1653 /* Copy the suffix to a string. */
1654 suffix = save_string (p, p2 - p);
1655 /* Find the next line. */
1656 p = skip_whitespace (p1 + 1);
1658 fatal ("specs file malformed after %ld characters",
1659 (long) (p - buffer));
1662 /* Find next blank line or end of string. */
1663 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1666 /* Specs end at the blank line and do not include the newline. */
1667 spec = save_string (p, p1 - p);
1670 /* Delete backslash-newline sequences from the spec. */
1675 if (in[0] == '\\' && in[1] == '\n')
1677 else if (in[0] == '#')
1678 while (*in && *in != '\n')
1686 if (suffix[0] == '*')
1688 if (! strcmp (suffix, "*link_command"))
1689 link_command_spec = spec;
1691 set_spec (suffix + 1, spec);
1695 /* Add this pair to the vector. */
1697 = ((struct compiler *)
1698 xrealloc (compilers,
1699 (n_compilers + 2) * sizeof (struct compiler)));
1701 compilers[n_compilers].suffix = suffix;
1702 compilers[n_compilers].spec = spec;
1704 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1708 link_command_spec = spec;
1711 if (link_command_spec == 0)
1712 fatal ("spec file has no spec for linking");
1715 /* Record the names of temporary files we tell compilers to write,
1716 and delete them at the end of the run. */
1718 /* This is the common prefix we use to make temp file names.
1719 It is chosen once for each run of this program.
1720 It is substituted into a spec by %g or %j.
1721 Thus, all temp file names contain this prefix.
1722 In practice, all temp file names start with this prefix.
1724 This prefix comes from the envvar TMPDIR if it is defined;
1725 otherwise, from the P_tmpdir macro if that is defined;
1726 otherwise, in /usr/tmp or /tmp;
1727 or finally the current directory if all else fails. */
1729 static const char *temp_filename;
1731 /* Length of the prefix. */
1733 static int temp_filename_length;
1735 /* Define the list of temporary files to delete. */
1740 struct temp_file *next;
1743 /* Queue of files to delete on success or failure of compilation. */
1744 static struct temp_file *always_delete_queue;
1745 /* Queue of files to delete on failure of compilation. */
1746 static struct temp_file *failure_delete_queue;
1748 /* Record FILENAME as a file to be deleted automatically.
1749 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1750 otherwise delete it in any case.
1751 FAIL_DELETE nonzero means delete it if a compilation step fails;
1752 otherwise delete it in any case. */
1755 record_temp_file (filename, always_delete, fail_delete)
1756 const char *filename;
1760 register char *const name = xstrdup (filename);
1764 register struct temp_file *temp;
1765 for (temp = always_delete_queue; temp; temp = temp->next)
1766 if (! strcmp (name, temp->name))
1769 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1770 temp->next = always_delete_queue;
1772 always_delete_queue = temp;
1779 register struct temp_file *temp;
1780 for (temp = failure_delete_queue; temp; temp = temp->next)
1781 if (! strcmp (name, temp->name))
1784 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1785 temp->next = failure_delete_queue;
1787 failure_delete_queue = temp;
1793 /* Delete all the temporary files whose names we previously recorded. */
1796 delete_if_ordinary (name)
1803 printf ("Delete %s? (y or n) ", name);
1807 while ((c = getchar ()) != '\n' && c != EOF)
1810 if (i == 'y' || i == 'Y')
1812 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1813 if (unlink (name) < 0)
1815 perror_with_name (name);
1819 delete_temp_files ()
1821 register struct temp_file *temp;
1823 for (temp = always_delete_queue; temp; temp = temp->next)
1824 delete_if_ordinary (temp->name);
1825 always_delete_queue = 0;
1828 /* Delete all the files to be deleted on error. */
1831 delete_failure_queue ()
1833 register struct temp_file *temp;
1835 for (temp = failure_delete_queue; temp; temp = temp->next)
1836 delete_if_ordinary (temp->name);
1840 clear_failure_queue ()
1842 failure_delete_queue = 0;
1845 /* Routine to add variables to the environment. We do this to pass
1846 the pathname of the gcc driver, and the directories search to the
1847 collect2 program, which is being run as ld. This way, we can be
1848 sure of executing the right compiler when collect2 wants to build
1849 constructors and destructors. Since the environment variables we
1850 use come from an obstack, we don't have to worry about allocating
1859 #ifndef VMS /* nor about VMS */
1861 extern char **environ;
1862 char **old_environ = environ;
1866 int str_len = strlen (str);
1870 while ((ch = *p++) != '\0' && ch != '=')
1876 /* Search for replacing an existing environment variable, and
1877 count the number of total environment variables. */
1878 for (envp = old_environ; *envp; envp++)
1881 if (!strncmp (str, *envp, name_len))
1888 /* Add a new environment variable */
1889 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
1891 memcpy ((char *) (environ + 1), (char *) old_environ,
1892 sizeof (char *) * (num_envs + 1));
1897 #endif /* HAVE_PUTENV */
1899 /* Build a list of search directories from PATHS.
1900 PREFIX is a string to prepend to the list.
1901 If CHECK_DIR_P is non-zero we ensure the directory exists.
1902 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1903 It is also used by the --print-search-dirs flag. */
1906 build_search_list (paths, prefix, check_dir_p)
1907 struct path_prefix *paths;
1911 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1913 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1914 int first_time = TRUE;
1915 struct prefix_list *pprefix;
1917 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1918 obstack_1grow (&collect_obstack, '=');
1920 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1922 int len = strlen (pprefix->prefix);
1926 || is_directory (pprefix->prefix, machine_suffix, 0)))
1929 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1932 obstack_grow (&collect_obstack, pprefix->prefix, len);
1933 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1936 if (just_machine_suffix
1937 && pprefix->require_machine_suffix == 2
1939 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1942 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1945 obstack_grow (&collect_obstack, pprefix->prefix, len);
1946 obstack_grow (&collect_obstack, just_machine_suffix,
1950 if (! pprefix->require_machine_suffix)
1953 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1956 obstack_grow (&collect_obstack, pprefix->prefix, len);
1960 obstack_1grow (&collect_obstack, '\0');
1961 return obstack_finish (&collect_obstack);
1964 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1968 putenv_from_prefixes (paths, env_var)
1969 struct path_prefix *paths;
1970 const char *env_var;
1972 putenv (build_search_list (paths, env_var, 1));
1977 /* FIXME: the location independence code for VMS is hairier than this,
1978 and hasn't been written. */
1980 /* Split a filename into component directories. */
1983 split_directories (name, ptr_num_dirs)
1992 /* Count the number of directories. Special case MSDOS disk names as part
1993 of the initial directory. */
1995 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1996 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2001 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2003 while ((ch = *p++) != '\0')
2005 if (IS_DIR_SEPARATOR (ch))
2008 while (IS_DIR_SEPARATOR (*p))
2013 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2015 /* Now copy the directory parts. */
2018 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2019 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2021 dirs[num_dirs++] = save_string (p, 3);
2024 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2027 while ((ch = *p++) != '\0')
2029 if (IS_DIR_SEPARATOR (ch))
2031 while (IS_DIR_SEPARATOR (*p))
2034 dirs[num_dirs++] = save_string (q, p - q);
2040 dirs[num_dirs++] = save_string (q, p - 1 - q);
2042 dirs[num_dirs] = NULL_PTR;
2044 *ptr_num_dirs = num_dirs;
2049 /* Release storage held by split directories. */
2052 free_split_directories (dirs)
2057 while (dirs[i] != NULL_PTR)
2060 free ((char *) dirs);
2063 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2064 to PREFIX starting with the directory portion of PROGNAME and a relative
2065 pathname of the difference between BIN_PREFIX and PREFIX.
2067 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2068 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2069 function will return /red/green/blue/../omega.
2071 If no relative prefix can be found, return NULL. */
2074 make_relative_prefix (progname, bin_prefix, prefix)
2075 const char *progname;
2076 const char *bin_prefix;
2079 char **prog_dirs, **bin_dirs, **prefix_dirs;
2080 int prog_num, bin_num, prefix_num, std_loc_p;
2083 prog_dirs = split_directories (progname, &prog_num);
2084 bin_dirs = split_directories (bin_prefix, &bin_num);
2086 /* If there is no full pathname, try to find the program by checking in each
2087 of the directories specified in the PATH environment variable. */
2092 GET_ENV_PATH_LIST (temp, "PATH");
2095 char *startp, *endp;
2096 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2098 startp = endp = temp;
2101 if (*endp == PATH_SEPARATOR || *endp == 0)
2106 nstore[1] = DIR_SEPARATOR;
2111 strncpy (nstore, startp, endp - startp);
2112 if (! IS_DIR_SEPARATOR (endp[-1]))
2114 nstore[endp - startp] = DIR_SEPARATOR;
2115 nstore[endp - startp + 1] = 0;
2118 nstore[endp - startp] = 0;
2120 strcat (nstore, progname);
2121 if (! access (nstore, X_OK)
2122 #ifdef HAVE_EXECUTABLE_SUFFIX
2123 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2127 free_split_directories (prog_dirs);
2129 prog_dirs = split_directories (progname, &prog_num);
2135 endp = startp = endp + 1;
2143 /* Remove the program name from comparison of directory names. */
2146 /* Determine if the compiler is installed in the standard location, and if
2147 so, we don't need to specify relative directories. Also, if argv[0]
2148 doesn't contain any directory specifiers, there is not much we can do. */
2150 if (prog_num == bin_num)
2152 for (i = 0; i < bin_num; i++)
2154 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2158 if (prog_num <= 0 || i == bin_num)
2161 free_split_directories (prog_dirs);
2162 free_split_directories (bin_dirs);
2163 prog_dirs = bin_dirs = (char **) 0;
2168 prefix_dirs = split_directories (prefix, &prefix_num);
2170 /* Find how many directories are in common between bin_prefix & prefix. */
2171 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2172 for (common = 0; common < n; common++)
2174 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2178 /* If there are no common directories, there can be no relative prefix. */
2181 free_split_directories (prog_dirs);
2182 free_split_directories (bin_dirs);
2183 free_split_directories (prefix_dirs);
2187 /* Build up the pathnames in argv[0]. */
2188 for (i = 0; i < prog_num; i++)
2189 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2191 /* Now build up the ..'s. */
2192 for (i = common; i < n; i++)
2194 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2195 obstack_1grow (&obstack, DIR_SEPARATOR);
2198 /* Put in directories to move over to prefix. */
2199 for (i = common; i < prefix_num; i++)
2200 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2202 free_split_directories (prog_dirs);
2203 free_split_directories (bin_dirs);
2204 free_split_directories (prefix_dirs);
2206 obstack_1grow (&obstack, '\0');
2207 return obstack_finish (&obstack);
2211 /* Check whether NAME can be accessed in MODE. This is like access,
2212 except that it never considers directories to be executable. */
2215 access_check (name, mode)
2223 if (stat (name, &st) < 0
2224 || S_ISDIR (st.st_mode))
2228 return access (name, mode);
2231 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2232 access to check permissions.
2233 Return 0 if not found, otherwise return its name, allocated with malloc. */
2236 find_a_file (pprefix, name, mode)
2237 struct path_prefix *pprefix;
2242 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2243 struct prefix_list *pl;
2244 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2246 #ifdef DEFAULT_ASSEMBLER
2247 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2248 return xstrdup (DEFAULT_ASSEMBLER);
2251 #ifdef DEFAULT_LINKER
2252 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2253 return xstrdup (DEFAULT_LINKER);
2257 len += strlen (machine_suffix);
2259 temp = xmalloc (len);
2261 /* Determine the filename to execute (special case for absolute paths). */
2263 if (IS_DIR_SEPARATOR (*name)
2264 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2265 /* Check for disk name on MS-DOS-based systems. */
2266 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2270 if (access (name, mode) == 0)
2272 strcpy (temp, name);
2277 for (pl = pprefix->plist; pl; pl = pl->next)
2281 /* Some systems have a suffix for executable files.
2282 So try appending that first. */
2283 if (file_suffix[0] != 0)
2285 strcpy (temp, pl->prefix);
2286 strcat (temp, machine_suffix);
2287 strcat (temp, name);
2288 strcat (temp, file_suffix);
2289 if (access_check (temp, mode) == 0)
2291 if (pl->used_flag_ptr != 0)
2292 *pl->used_flag_ptr = 1;
2297 /* Now try just the name. */
2298 strcpy (temp, pl->prefix);
2299 strcat (temp, machine_suffix);
2300 strcat (temp, name);
2301 if (access_check (temp, mode) == 0)
2303 if (pl->used_flag_ptr != 0)
2304 *pl->used_flag_ptr = 1;
2309 /* Certain prefixes are tried with just the machine type,
2310 not the version. This is used for finding as, ld, etc. */
2311 if (just_machine_suffix && pl->require_machine_suffix == 2)
2313 /* Some systems have a suffix for executable files.
2314 So try appending that first. */
2315 if (file_suffix[0] != 0)
2317 strcpy (temp, pl->prefix);
2318 strcat (temp, just_machine_suffix);
2319 strcat (temp, name);
2320 strcat (temp, file_suffix);
2321 if (access_check (temp, mode) == 0)
2323 if (pl->used_flag_ptr != 0)
2324 *pl->used_flag_ptr = 1;
2329 strcpy (temp, pl->prefix);
2330 strcat (temp, just_machine_suffix);
2331 strcat (temp, name);
2332 if (access_check (temp, mode) == 0)
2334 if (pl->used_flag_ptr != 0)
2335 *pl->used_flag_ptr = 1;
2340 /* Certain prefixes can't be used without the machine suffix
2341 when the machine or version is explicitly specified. */
2342 if (! pl->require_machine_suffix)
2344 /* Some systems have a suffix for executable files.
2345 So try appending that first. */
2346 if (file_suffix[0] != 0)
2348 strcpy (temp, pl->prefix);
2349 strcat (temp, name);
2350 strcat (temp, file_suffix);
2351 if (access_check (temp, mode) == 0)
2353 if (pl->used_flag_ptr != 0)
2354 *pl->used_flag_ptr = 1;
2359 strcpy (temp, pl->prefix);
2360 strcat (temp, name);
2361 if (access_check (temp, mode) == 0)
2363 if (pl->used_flag_ptr != 0)
2364 *pl->used_flag_ptr = 1;
2374 /* Ranking of prefixes in the sort list. -B prefixes are put before
2377 enum path_prefix_priority
2379 PREFIX_PRIORITY_B_OPT,
2380 PREFIX_PRIORITY_LAST
2383 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2384 order according to PRIORITY. Within each PRIORITY, new entries are
2387 If WARN is nonzero, we will warn if no file is found
2388 through this prefix. WARN should point to an int
2389 which will be set to 1 if this entry is used.
2391 COMPONENT is the value to be passed to update_path.
2393 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2394 the complete value of machine_suffix.
2395 2 means try both machine_suffix and just_machine_suffix. */
2398 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2399 struct path_prefix *pprefix;
2401 const char *component;
2402 /* enum prefix_priority */ int priority;
2403 int require_machine_suffix;
2406 struct prefix_list *pl, **prev;
2409 for (prev = &pprefix->plist;
2410 (*prev) != NULL && (*prev)->priority <= priority;
2411 prev = &(*prev)->next)
2414 /* Keep track of the longest prefix */
2416 prefix = update_path (prefix, component);
2417 len = strlen (prefix);
2418 if (len > pprefix->max_len)
2419 pprefix->max_len = len;
2421 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2422 pl->prefix = save_string (prefix, len);
2423 pl->require_machine_suffix = require_machine_suffix;
2424 pl->used_flag_ptr = warn;
2425 pl->priority = priority;
2429 /* Insert after PREV */
2434 /* Execute the command specified by the arguments on the current line of spec.
2435 When using pipes, this includes several piped-together commands
2436 with `|' between them.
2438 Return 0 if successful, -1 if failed. */
2444 int n_commands; /* # of command. */
2448 const char *prog; /* program name. */
2449 const char **argv; /* vector of args. */
2450 int pid; /* pid of process for this command. */
2453 struct command *commands; /* each command buffer with above info. */
2455 /* Count # of piped commands. */
2456 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2457 if (strcmp (argbuf[i], "|") == 0)
2460 /* Get storage for each command. */
2461 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2463 /* Split argbuf into its separate piped processes,
2464 and record info about each one.
2465 Also search for the programs that are to be run. */
2467 commands[0].prog = argbuf[0]; /* first command. */
2468 commands[0].argv = &argbuf[0];
2469 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2472 commands[0].argv[0] = string;
2474 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2475 if (strcmp (argbuf[i], "|") == 0)
2476 { /* each command. */
2477 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2478 fatal ("-pipe not supported");
2480 argbuf[i] = 0; /* termination of command args. */
2481 commands[n_commands].prog = argbuf[i + 1];
2482 commands[n_commands].argv = &argbuf[i + 1];
2483 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2485 commands[n_commands].argv[0] = string;
2489 argbuf[argbuf_index] = 0;
2491 /* If -v, print what we are about to do, and maybe query. */
2495 /* For help listings, put a blank line between sub-processes. */
2496 if (print_help_list)
2497 fputc ('\n', stderr);
2499 /* Print each piped command as a separate line. */
2500 for (i = 0; i < n_commands; i++)
2502 const char *const *j;
2504 for (j = commands[i].argv; *j; j++)
2505 fprintf (stderr, " %s", *j);
2507 /* Print a pipe symbol after all but the last command. */
2508 if (i + 1 != n_commands)
2509 fprintf (stderr, " |");
2510 fprintf (stderr, "\n");
2514 notice ("\nGo ahead? (y or n) ");
2518 while (getchar () != '\n')
2521 if (i != 'y' && i != 'Y')
2526 /* Run each piped subprocess. */
2528 for (i = 0; i < n_commands; i++)
2530 char *errmsg_fmt, *errmsg_arg;
2531 const char *string = commands[i].argv[0];
2533 /* For some bizarre reason, the second argument of execvp() is
2534 char *const *, not const char *const *. */
2535 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2536 programname, temp_filename,
2537 &errmsg_fmt, &errmsg_arg,
2538 ((i == 0 ? PEXECUTE_FIRST : 0)
2539 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2540 | (string == commands[i].prog
2541 ? PEXECUTE_SEARCH : 0)
2542 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2544 if (commands[i].pid == -1)
2545 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2547 if (string != commands[i].prog)
2548 free ((PTR) string);
2553 /* Wait for all the subprocesses to finish.
2554 We don't care what order they finish in;
2555 we know that N_COMMANDS waits will get them all.
2556 Ignore subprocesses that we don't know about,
2557 since they can be spawned by the process that exec'ed us. */
2561 #ifdef HAVE_GETRUSAGE
2563 double ut = 0.0, st = 0.0;
2566 for (i = 0; i < n_commands;)
2572 pid = pwait (commands[i].pid, &status, 0);
2576 #ifdef HAVE_GETRUSAGE
2579 /* getrusage returns the total resource usage of all children
2580 up to now. Copy the previous values into prus, get the
2581 current statistics, then take the difference. */
2584 getrusage (RUSAGE_CHILDREN, &rus);
2585 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2586 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2587 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2589 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2590 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2591 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2595 for (j = 0; j < n_commands; j++)
2596 if (commands[j].pid == pid)
2599 if (WIFSIGNALED (status))
2602 /* SIGPIPE is a special case. It happens in -pipe mode
2603 when the compiler dies before the preprocessor is
2604 done, or the assembler dies before the compiler is
2605 done. There's generally been an error already, and
2606 this is just fallout. So don't generate another error
2607 unless we would otherwise have succeeded. */
2608 if (WTERMSIG (status) == SIGPIPE
2609 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2614 Internal error: %s (program %s)\n\
2615 Please submit a full bug report.\n\
2616 See %s for instructions.",
2617 strsignal (WTERMSIG (status)), commands[j].prog,
2622 else if (WIFEXITED (status)
2623 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2625 if (WEXITSTATUS (status) > greatest_status)
2626 greatest_status = WEXITSTATUS (status);
2629 #ifdef HAVE_GETRUSAGE
2630 if (report_times && ut + st != 0)
2631 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2640 /* Find all the switches given to us
2641 and make a vector describing them.
2642 The elements of the vector are strings, one per switch given.
2643 If a switch uses following arguments, then the `part1' field
2644 is the switch itself and the `args' field
2645 is a null-terminated vector containing the following arguments.
2646 The `live_cond' field is:
2648 1 if the switch is true in a conditional spec,
2649 -1 if false (overridden by a later switch)
2650 -2 if this switch should be ignored (used in %{<S})
2651 The `validated' field is nonzero if any spec has looked at this switch;
2652 if it remains zero at the end of the run, it must be meaningless. */
2655 #define SWITCH_FALSE -1
2656 #define SWITCH_IGNORE -2
2657 #define SWITCH_LIVE 1
2667 static struct switchstr *switches;
2669 static int n_switches;
2674 const char *language;
2677 /* Also a vector of input files specified. */
2679 static struct infile *infiles;
2681 static int n_infiles;
2683 /* This counts the number of libraries added by lang_specific_driver, so that
2684 we can tell if there were any user supplied any files or libraries. */
2686 static int added_libraries;
2688 /* And a vector of corresponding output files is made up later. */
2690 static const char **outfiles;
2692 /* Used to track if none of the -B paths are used. */
2695 /* Used to track if standard path isn't used and -b or -V is specified. */
2696 static int warn_std;
2698 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2699 static int *warn_std_ptr = 0;
2701 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2703 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2704 is true if we should look for an executable suffix as well. */
2707 convert_filename (name, do_exe)
2717 len = strlen (name);
2719 #ifdef HAVE_OBJECT_SUFFIX
2720 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2722 && name[len - 2] == '.'
2723 && name[len - 1] == 'o')
2725 obstack_grow (&obstack, name, len - 2);
2726 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2727 name = obstack_finish (&obstack);
2731 #ifdef HAVE_EXECUTABLE_SUFFIX
2732 /* If there is no filetype, make it the executable suffix (which includes
2733 the "."). But don't get confused if we have just "-o". */
2734 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2737 for (i = len - 1; i >= 0; i--)
2738 if (IS_DIR_SEPARATOR (name[i]))
2741 for (i++; i < len; i++)
2745 obstack_grow (&obstack, name, len);
2746 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2747 name = obstack_finish (&obstack);
2754 /* Display the command line switches accepted by gcc. */
2758 printf (_("Usage: %s [options] file...\n"), programname);
2759 fputs (_("Options:\n"), stdout);
2761 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2762 fputs (_(" --help Display this information\n"), stdout);
2764 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2765 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2766 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2767 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2768 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2769 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2770 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2771 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2772 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2774 -print-multi-lib Display the mapping between command line options and\n\
2775 multiple library search directories\n"), stdout);
2776 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2777 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2778 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2779 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2780 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2781 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2782 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2783 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2784 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2785 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2786 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2787 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2788 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2789 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2790 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2791 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2792 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2794 -x <language> Specify the language of the following input files\n\
2795 Permissable languages include: c c++ assembler none\n\
2796 'none' means revert to the default behaviour of\n\
2797 guessing the language based on the file's extension\n\
2801 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2802 the various sub-processes invoked by %s. In order to pass other options\n\
2803 on to these processes the -W<letter> options must be used.\n\
2806 /* The rest of the options are displayed by invocations of the various
2811 add_preprocessor_option (option, len)
2815 n_preprocessor_options++;
2817 if (! preprocessor_options)
2818 preprocessor_options
2819 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2821 preprocessor_options
2822 = (char **) xrealloc (preprocessor_options,
2823 n_preprocessor_options * sizeof (char *));
2825 preprocessor_options [n_preprocessor_options - 1] =
2826 save_string (option, len);
2830 add_assembler_option (option, len)
2834 n_assembler_options++;
2836 if (! assembler_options)
2838 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2841 = (char **) xrealloc (assembler_options,
2842 n_assembler_options * sizeof (char *));
2844 assembler_options [n_assembler_options - 1] = save_string (option, len);
2848 add_linker_option (option, len)
2854 if (! linker_options)
2856 = (char **) xmalloc (n_linker_options * sizeof (char *));
2859 = (char **) xrealloc (linker_options,
2860 n_linker_options * sizeof (char *));
2862 linker_options [n_linker_options - 1] = save_string (option, len);
2865 /* Create the vector `switches' and its contents.
2866 Store its length in `n_switches'. */
2869 process_command (argc, argv)
2871 const char *const *argv;
2877 const char *spec_lang = 0;
2878 int last_language_n_infiles;
2881 int lang_n_infiles = 0;
2882 #ifdef MODIFY_TARGET_NAME
2883 int is_modify_target_name;
2886 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2890 added_libraries = 0;
2892 /* Figure compiler version from version string. */
2894 compiler_version = temp1 = xstrdup (version_string);
2896 for (; *temp1; ++temp1)
2905 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2906 see if we can create it from the pathname specified in argv[0]. */
2909 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2910 if (!gcc_exec_prefix)
2912 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2913 standard_exec_prefix);
2914 if (gcc_exec_prefix)
2915 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2919 if (gcc_exec_prefix)
2921 int len = strlen (gcc_exec_prefix);
2922 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
2923 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2925 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2926 if (IS_DIR_SEPARATOR (*temp)
2927 && strncmp (temp + 1, "lib", 3) == 0
2928 && IS_DIR_SEPARATOR (temp[4])
2929 && strncmp (temp + 5, "gcc-lib", 7) == 0)
2930 len -= sizeof ("/lib/gcc-lib/") - 1;
2933 set_std_prefix (gcc_exec_prefix, len);
2934 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2935 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2936 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2937 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2940 /* COMPILER_PATH and LIBRARY_PATH have values
2941 that are lists of directory names with colons. */
2943 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2946 const char *startp, *endp;
2947 char *nstore = (char *) alloca (strlen (temp) + 3);
2949 startp = endp = temp;
2952 if (*endp == PATH_SEPARATOR || *endp == 0)
2954 strncpy (nstore, startp, endp - startp);
2956 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2957 else if (!IS_DIR_SEPARATOR (endp[-1]))
2959 nstore[endp - startp] = DIR_SEPARATOR;
2960 nstore[endp - startp + 1] = 0;
2963 nstore[endp - startp] = 0;
2964 add_prefix (&exec_prefixes, nstore, 0,
2965 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2966 add_prefix (&include_prefixes,
2967 concat (nstore, "include", NULL_PTR),
2968 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2971 endp = startp = endp + 1;
2978 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2979 if (temp && *cross_compile == '0')
2981 const char *startp, *endp;
2982 char *nstore = (char *) alloca (strlen (temp) + 3);
2984 startp = endp = temp;
2987 if (*endp == PATH_SEPARATOR || *endp == 0)
2989 strncpy (nstore, startp, endp - startp);
2991 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2992 else if (!IS_DIR_SEPARATOR (endp[-1]))
2994 nstore[endp - startp] = DIR_SEPARATOR;
2995 nstore[endp - startp + 1] = 0;
2998 nstore[endp - startp] = 0;
2999 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3000 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3003 endp = startp = endp + 1;
3010 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3011 GET_ENV_PATH_LIST (temp, "LPATH");
3012 if (temp && *cross_compile == '0')
3014 const char *startp, *endp;
3015 char *nstore = (char *) alloca (strlen (temp) + 3);
3017 startp = endp = temp;
3020 if (*endp == PATH_SEPARATOR || *endp == 0)
3022 strncpy (nstore, startp, endp - startp);
3024 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3025 else if (!IS_DIR_SEPARATOR (endp[-1]))
3027 nstore[endp - startp] = DIR_SEPARATOR;
3028 nstore[endp - startp + 1] = 0;
3031 nstore[endp - startp] = 0;
3032 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3033 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3036 endp = startp = endp + 1;
3043 /* Convert new-style -- options to old-style. */
3044 translate_options (&argc, &argv);
3046 /* Do language-specific adjustment/addition of flags. */
3047 lang_specific_driver (&argc, &argv, &added_libraries);
3049 /* Scan argv twice. Here, the first time, just count how many switches
3050 there will be in their vector, and how many input files in theirs.
3051 Also parse any switches that determine the configuration name, such as -b.
3052 Here we also parse the switches that cc itself uses (e.g. -v). */
3054 for (i = 1; i < argc; i++)
3056 if (! strcmp (argv[i], "-dumpspecs"))
3058 struct spec_list *sl;
3060 for (sl = specs; sl; sl = sl->next)
3061 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3062 if (link_command_spec)
3063 printf ("*link_command:\n%s\n\n", link_command_spec);
3066 else if (! strcmp (argv[i], "-dumpversion"))
3068 printf ("%s\n", spec_version);
3071 else if (! strcmp (argv[i], "-dumpmachine"))
3073 printf ("%s\n", spec_machine);
3076 else if (strcmp (argv[i], "-fhelp") == 0)
3078 /* translate_options () has turned --help into -fhelp. */
3079 print_help_list = 1;
3081 /* We will be passing a dummy file on to the sub-processes. */
3085 add_preprocessor_option ("--help", 6);
3086 add_assembler_option ("--help", 6);
3087 add_linker_option ("--help", 6);
3089 else if (! strcmp (argv[i], "-pass-exit-codes"))
3091 pass_exit_codes = 1;
3094 else if (! strcmp (argv[i], "-print-search-dirs"))
3095 print_search_dirs = 1;
3096 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3097 print_file_name = "libgcc.a";
3098 else if (! strncmp (argv[i], "-print-file-name=", 17))
3099 print_file_name = argv[i] + 17;
3100 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3101 print_prog_name = argv[i] + 17;
3102 else if (! strcmp (argv[i], "-print-multi-lib"))
3103 print_multi_lib = 1;
3104 else if (! strcmp (argv[i], "-print-multi-directory"))
3105 print_multi_directory = 1;
3106 else if (! strncmp (argv[i], "-Wa,", 4))
3109 /* Pass the rest of this option to the assembler. */
3111 /* Split the argument at commas. */
3113 for (j = 4; argv[i][j]; j++)
3114 if (argv[i][j] == ',')
3116 add_assembler_option (argv[i] + prev, j - prev);
3120 /* Record the part after the last comma. */
3121 add_assembler_option (argv[i] + prev, j - prev);
3123 else if (! strncmp (argv[i], "-Wp,", 4))
3126 /* Pass the rest of this option to the preprocessor. */
3128 /* Split the argument at commas. */
3130 for (j = 4; argv[i][j]; j++)
3131 if (argv[i][j] == ',')
3133 add_preprocessor_option (argv[i] + prev, j - prev);
3137 /* Record the part after the last comma. */
3138 add_preprocessor_option (argv[i] + prev, j - prev);
3140 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3141 /* The +e options to the C++ front-end. */
3143 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3146 /* Split the argument at commas. */
3147 for (j = 3; argv[i][j]; j++)
3148 n_infiles += (argv[i][j] == ',');
3150 else if (strcmp (argv[i], "-Xlinker") == 0)
3153 fatal ("argument to `-Xlinker' is missing");
3158 else if (strncmp (argv[i], "-l", 2) == 0)
3160 else if (strcmp (argv[i], "-save-temps") == 0)
3162 save_temps_flag = 1;
3165 else if (strcmp (argv[i], "-specs") == 0)
3167 struct user_specs *user = (struct user_specs *)
3168 xmalloc (sizeof (struct user_specs));
3170 fatal ("argument to `-specs' is missing");
3172 user->next = (struct user_specs *) 0;
3173 user->filename = argv[i];
3174 if (user_specs_tail)
3175 user_specs_tail->next = user;
3177 user_specs_head = user;
3178 user_specs_tail = user;
3180 else if (strncmp (argv[i], "-specs=", 7) == 0)
3182 struct user_specs *user = (struct user_specs *)
3183 xmalloc (sizeof (struct user_specs));
3184 if (strlen (argv[i]) == 7)
3185 fatal ("argument to `-specs=' is missing");
3187 user->next = (struct user_specs *) 0;
3188 user->filename = argv[i] + 7;
3189 if (user_specs_tail)
3190 user_specs_tail->next = user;
3192 user_specs_head = user;
3193 user_specs_tail = user;
3195 else if (strcmp (argv[i], "-time") == 0)
3197 else if (argv[i][0] == '-' && argv[i][1] != 0)
3199 register const char *p = &argv[i][1];
3200 register int c = *p;
3206 if (p[1] == 0 && i + 1 == argc)
3207 fatal ("argument to `-b' is missing");
3209 spec_machine = argv[++i];
3211 spec_machine = p + 1;
3213 warn_std_ptr = &warn_std;
3219 if (p[1] == 0 && i + 1 == argc)
3220 fatal ("argument to `-B' is missing");
3226 /* As a kludge, if the arg is "[foo/]stageN/", just
3227 add "[foo/]include" to the include prefix. */
3228 int len = strlen (value);
3231 && (IS_DIR_SEPARATOR (value[len - 8]))))
3232 && strncmp (value + len - 7, "stage", 5) == 0
3233 && ISDIGIT (value[len - 2])
3234 && (IS_DIR_SEPARATOR (value[len - 1])))
3237 add_prefix (&include_prefixes, "include", NULL_PTR,
3238 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3241 char *string = xmalloc (len + 1);
3242 strncpy (string, value, len-7);
3243 strcpy (string+len-7, "include");
3244 add_prefix (&include_prefixes, string, NULL_PTR,
3245 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3249 add_prefix (&exec_prefixes, value, NULL_PTR,
3250 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3251 add_prefix (&startfile_prefixes, value, NULL_PTR,
3252 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3253 add_prefix (&include_prefixes, concat (value, "include",
3256 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3261 case 'v': /* Print our subcommands and print versions. */
3263 /* If they do anything other than exactly `-v', don't set
3264 verbose_flag; rather, continue on to give the error. */
3272 if (p[1] == 0 && i + 1 == argc)
3273 fatal ("argument to `-V' is missing");
3275 spec_version = argv[++i];
3277 spec_version = p + 1;
3278 compiler_version = spec_version;
3279 warn_std_ptr = &warn_std;
3281 /* Validate the version number. Use the same checks
3282 done when inserting it into a spec.
3284 The format of the version string is
3285 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3287 const char *v = compiler_version;
3289 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3290 while (! ISDIGIT (*v))
3293 if (v > compiler_version && v[-1] != '-')
3294 fatal ("invalid version number format");
3296 /* Set V after the first period. */
3297 while (ISDIGIT (*v))
3301 fatal ("invalid version number format");
3304 while (ISDIGIT (*v))
3307 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3308 fatal ("invalid version number format");
3324 #if defined(HAVE_EXECUTABLE_SUFFIX)
3329 /* Forward scan, just in case -S or -c is specified
3336 if (argv[j][0] == '-')
3338 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3344 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3345 j += skip - (argv[j][2] != 0);
3346 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3353 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3355 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3357 argv[i] = convert_filename (argv[i], ! have_c);
3364 #ifdef MODIFY_TARGET_NAME
3365 is_modify_target_name = 0;
3368 j < sizeof modify_target / sizeof modify_target[0]; j++)
3369 if (! strcmp (argv[i], modify_target[j].sw))
3372 = (char *) xmalloc (strlen (modify_target[j].str)
3373 + strlen (spec_machine));
3376 int made_addition = 0;
3378 is_modify_target_name = 1;
3379 for (p = spec_machine, q = new_name; *p != 0; )
3381 if (modify_target[j].add_del == DELETE
3382 && (! strncmp (q, modify_target[j].str,
3383 strlen (modify_target[j].str))))
3384 p += strlen (modify_target[j].str);
3385 else if (modify_target[j].add_del == ADD
3386 && ! made_addition && *p == '-')
3388 for (r = modify_target[j].str; *r != 0; )
3396 spec_machine = new_name;
3399 if (is_modify_target_name)
3405 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3406 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3407 else if (WORD_SWITCH_TAKES_ARG (p))
3408 i += WORD_SWITCH_TAKES_ARG (p);
3418 if (have_c && have_o && lang_n_infiles > 1)
3419 fatal ("cannot specify -o with -c or -S and multiple compilations");
3421 /* Set up the search paths before we go looking for config files. */
3423 /* These come before the md prefixes so that we will find gcc's subcommands
3424 (such as cpp) rather than those of the host system. */
3425 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3426 as well as trying the machine and the version. */
3428 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3429 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3430 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3431 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3432 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3433 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3436 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3437 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3438 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3439 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3441 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3442 dir_separator_str, NULL_PTR);
3444 /* If tooldir is relative, base it on exec_prefixes. A relative
3445 tooldir lets us move the installed tree as a unit.
3447 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3448 directories, so that we can search both the user specified directory
3449 and the standard place. */
3451 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3453 if (gcc_exec_prefix)
3455 char *gcc_exec_tooldir_prefix
3456 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3457 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3459 add_prefix (&exec_prefixes,
3460 concat (gcc_exec_tooldir_prefix, "bin",
3461 dir_separator_str, NULL_PTR),
3462 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3463 add_prefix (&startfile_prefixes,
3464 concat (gcc_exec_tooldir_prefix, "lib",
3465 dir_separator_str, NULL_PTR),
3466 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3469 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3470 dir_separator_str, spec_version,
3471 dir_separator_str, tooldir_prefix, NULL_PTR);
3474 add_prefix (&exec_prefixes,
3475 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3476 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3477 add_prefix (&startfile_prefixes,
3478 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3479 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3481 /* More prefixes are enabled in main, after we read the specs file
3482 and determine whether this is cross-compilation or not. */
3484 /* Then create the space for the vectors and scan again. */
3486 switches = ((struct switchstr *)
3487 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3488 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3491 last_language_n_infiles = -1;
3493 /* This, time, copy the text of each switch and store a pointer
3494 to the copy in the vector of switches.
3495 Store all the infiles in their vector. */
3497 for (i = 1; i < argc; i++)
3499 /* Just skip the switches that were handled by the preceding loop. */
3500 #ifdef MODIFY_TARGET_NAME
3501 is_modify_target_name = 0;
3503 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3504 if (! strcmp (argv[i], modify_target[j].sw))
3505 is_modify_target_name = 1;
3507 if (is_modify_target_name)
3511 if (! strncmp (argv[i], "-Wa,", 4))
3513 else if (! strncmp (argv[i], "-Wp,", 4))
3515 else if (! strcmp (argv[i], "-pass-exit-codes"))
3517 else if (! strcmp (argv[i], "-print-search-dirs"))
3519 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3521 else if (! strncmp (argv[i], "-print-file-name=", 17))
3523 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3525 else if (! strcmp (argv[i], "-print-multi-lib"))
3527 else if (! strcmp (argv[i], "-print-multi-directory"))
3529 else if (strcmp (argv[i], "-fhelp") == 0)
3533 /* Create a dummy input file, so that we can pass --help on to
3534 the various sub-processes. */
3535 infiles[n_infiles].language = "c";
3536 infiles[n_infiles++].name = "help-dummy";
3538 /* Preserve the --help switch so that it can be caught by the
3540 switches[n_switches].part1 = "--help";
3541 switches[n_switches].args = 0;
3542 switches[n_switches].live_cond = SWITCH_OK;
3543 switches[n_switches].validated = 0;
3548 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3550 /* Compensate for the +e options to the C++ front-end;
3551 they're there simply for cfront call-compatibility. We do
3552 some magic in default_compilers to pass them down properly.
3553 Note we deliberately start at the `+' here, to avoid passing
3554 -e0 or -e1 down into the linker. */
3555 switches[n_switches].part1 = &argv[i][0];
3556 switches[n_switches].args = 0;
3557 switches[n_switches].live_cond = SWITCH_OK;
3558 switches[n_switches].validated = 0;
3561 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3564 /* Split the argument at commas. */
3566 for (j = 4; argv[i][j]; j++)
3567 if (argv[i][j] == ',')
3569 infiles[n_infiles].language = "*";
3570 infiles[n_infiles++].name
3571 = save_string (argv[i] + prev, j - prev);
3574 /* Record the part after the last comma. */
3575 infiles[n_infiles].language = "*";
3576 infiles[n_infiles++].name = argv[i] + prev;
3578 else if (strcmp (argv[i], "-Xlinker") == 0)
3580 infiles[n_infiles].language = "*";
3581 infiles[n_infiles++].name = argv[++i];
3583 else if (strncmp (argv[i], "-l", 2) == 0)
3585 infiles[n_infiles].language = "*";
3586 infiles[n_infiles++].name = argv[i];
3588 else if (strcmp (argv[i], "-specs") == 0)
3590 else if (strncmp (argv[i], "-specs=", 7) == 0)
3592 else if (strcmp (argv[i], "-time") == 0)
3594 else if ((save_temps_flag || report_times)
3595 && strcmp (argv[i], "-pipe") == 0)
3597 /* -save-temps overrides -pipe, so that temp files are produced */
3598 if (save_temps_flag)
3599 error ("Warning: -pipe ignored because -save-temps specified");
3600 /* -time overrides -pipe because we can't get correct stats when
3601 multiple children are running at once. */
3602 else if (report_times)
3603 error ("Warning: -pipe ignored because -time specified");
3605 else if (argv[i][0] == '-' && argv[i][1] != 0)
3607 const char *p = &argv[i][1];
3612 if (p[1] == 0 && i + 1 == argc)
3613 fatal ("argument to `-x' is missing");
3615 spec_lang = argv[++i];
3618 if (! strcmp (spec_lang, "none"))
3619 /* Suppress the warning if -xnone comes after the last input
3620 file, because alternate command interfaces like g++ might
3621 find it useful to place -xnone after each input file. */
3624 last_language_n_infiles = n_infiles;
3627 switches[n_switches].part1 = p;
3628 /* Deal with option arguments in separate argv elements. */
3629 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3630 || WORD_SWITCH_TAKES_ARG (p))
3633 int n_args = WORD_SWITCH_TAKES_ARG (p);
3637 /* Count only the option arguments in separate argv elements. */
3638 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3640 if (i + n_args >= argc)
3641 fatal ("argument to `-%s' is missing", p);
3642 switches[n_switches].args
3643 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3645 switches[n_switches].args[j++] = argv[++i];
3646 /* Null-terminate the vector. */
3647 switches[n_switches].args[j] = 0;
3649 else if (strchr (switches_need_spaces, c))
3651 /* On some systems, ld cannot handle some options without
3652 a space. So split the option from its argument. */
3653 char *part1 = (char *) xmalloc (2);
3658 switches[n_switches].part1 = part1;
3659 switches[n_switches].args
3660 = (const char **) xmalloc (2 * sizeof (const char *));
3661 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3662 strcpy (tmp, &p[1]);
3663 switches[n_switches].args[1] = 0;
3666 switches[n_switches].args = 0;
3668 switches[n_switches].live_cond = SWITCH_OK;
3669 switches[n_switches].validated = 0;
3670 /* This is always valid, since gcc.c itself understands it. */
3671 if (!strcmp (p, "save-temps"))
3672 switches[n_switches].validated = 1;
3675 char ch = switches[n_switches].part1[0];
3676 if (ch == 'V' || ch == 'b' || ch == 'B')
3677 switches[n_switches].validated = 1;
3683 #ifdef HAVE_OBJECT_SUFFIX
3684 argv[i] = convert_filename (argv[i], 0);
3687 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3689 perror_with_name (argv[i]);
3694 infiles[n_infiles].language = spec_lang;
3695 infiles[n_infiles++].name = argv[i];
3700 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3701 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3703 switches[n_switches].part1 = 0;
3704 infiles[n_infiles].name = 0;
3707 /* Process a spec string, accumulating and running commands. */
3709 /* These variables describe the input file name.
3710 input_file_number is the index on outfiles of this file,
3711 so that the output file name can be stored for later use by %o.
3712 input_basename is the start of the part of the input file
3713 sans all directory names, and basename_length is the number
3714 of characters starting there excluding the suffix .c or whatever. */
3716 const char *input_filename;
3717 static int input_file_number;
3718 size_t input_filename_length;
3719 static int basename_length;
3720 static int suffixed_basename_length;
3721 static const char *input_basename;
3722 static const char *input_suffix;
3724 /* These are variables used within do_spec and do_spec_1. */
3726 /* Nonzero if an arg has been started and not yet terminated
3727 (with space, tab or newline). */
3728 static int arg_going;
3730 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3731 is a temporary file name. */
3732 static int delete_this_arg;
3734 /* Nonzero means %w has been seen; the next arg to be terminated
3735 is the output file name of this compilation. */
3736 static int this_is_output_file;
3738 /* Nonzero means %s has been seen; the next arg to be terminated
3739 is the name of a library file and we should try the standard
3740 search dirs for it. */
3741 static int this_is_library_file;
3743 /* Nonzero means that the input of this command is coming from a pipe. */
3744 static int input_from_pipe;
3746 /* Process the spec SPEC and run the commands specified therein.
3747 Returns 0 if the spec is successfully processed; -1 if failed. */
3757 delete_this_arg = 0;
3758 this_is_output_file = 0;
3759 this_is_library_file = 0;
3760 input_from_pipe = 0;
3762 value = do_spec_1 (spec, 0, NULL_PTR);
3764 /* Force out any unfinished command.
3765 If -pipe, this forces out the last command if it ended in `|'. */
3768 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3771 if (argbuf_index > 0)
3778 /* Process the sub-spec SPEC as a portion of a larger spec.
3779 This is like processing a whole spec except that we do
3780 not initialize at the beginning and we do not supply a
3781 newline by default at the end.
3782 INSWITCH nonzero means don't process %-sequences in SPEC;
3783 in this case, % is treated as an ordinary character.
3784 This is used while substituting switches.
3785 INSWITCH nonzero also causes SPC not to terminate an argument.
3787 Value is zero unless a line was finished
3788 and the command on that line reported an error. */
3791 do_spec_1 (spec, inswitch, soft_matched_part)
3794 const char *soft_matched_part;
3796 register const char *p = spec;
3803 /* If substituting a switch, treat all chars like letters.
3804 Otherwise, NL, SPC, TAB and % are special. */
3805 switch (inswitch ? 'a' : c)
3808 /* End of line: finish any pending argument,
3809 then run the pending command if one has been started. */
3812 obstack_1grow (&obstack, 0);
3813 string = obstack_finish (&obstack);
3814 if (this_is_library_file)
3815 string = find_file (string);
3816 store_arg (string, delete_this_arg, this_is_output_file);
3817 if (this_is_output_file)
3818 outfiles[input_file_number] = string;
3822 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3824 for (i = 0; i < n_switches; i++)
3825 if (!strcmp (switches[i].part1, "pipe"))
3828 /* A `|' before the newline means use a pipe here,
3829 but only if -pipe was specified.
3830 Otherwise, execute now and don't pass the `|' as an arg. */
3833 input_from_pipe = 1;
3834 switches[i].validated = 1;
3841 if (argbuf_index > 0)
3847 /* Reinitialize for a new command, and for a new argument. */
3850 delete_this_arg = 0;
3851 this_is_output_file = 0;
3852 this_is_library_file = 0;
3853 input_from_pipe = 0;
3857 /* End any pending argument. */
3860 obstack_1grow (&obstack, 0);
3861 string = obstack_finish (&obstack);
3862 if (this_is_library_file)
3863 string = find_file (string);
3864 store_arg (string, delete_this_arg, this_is_output_file);
3865 if (this_is_output_file)
3866 outfiles[input_file_number] = string;
3870 obstack_1grow (&obstack, c);
3876 /* Space or tab ends an argument if one is pending. */
3879 obstack_1grow (&obstack, 0);
3880 string = obstack_finish (&obstack);
3881 if (this_is_library_file)
3882 string = find_file (string);
3883 store_arg (string, delete_this_arg, this_is_output_file);
3884 if (this_is_output_file)
3885 outfiles[input_file_number] = string;
3887 /* Reinitialize for a new argument. */
3889 delete_this_arg = 0;
3890 this_is_output_file = 0;
3891 this_is_library_file = 0;
3898 fatal ("Invalid specification! Bug in cc.");
3901 obstack_grow (&obstack, input_basename, basename_length);
3906 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3911 delete_this_arg = 2;
3914 /* Dump out the directories specified with LIBRARY_PATH,
3915 followed by the absolute directories
3916 that we search for startfiles. */
3919 struct prefix_list *pl = startfile_prefixes.plist;
3920 size_t bufsize = 100;
3921 char *buffer = (char *) xmalloc (bufsize);
3924 for (; pl; pl = pl->next)
3926 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3927 /* Used on systems which record the specified -L dirs
3928 and use them to search for dynamic linking. */
3929 /* Relative directories always come from -B,
3930 and it is better not to use them for searching
3931 at run time. In particular, stage1 loses. */
3932 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3935 /* Try subdirectory if there is one. */
3936 if (multilib_dir != NULL)
3940 if (strlen (pl->prefix) + strlen (machine_suffix)
3942 bufsize = (strlen (pl->prefix)
3943 + strlen (machine_suffix)) * 2 + 1;
3944 buffer = (char *) xrealloc (buffer, bufsize);
3945 strcpy (buffer, pl->prefix);
3946 strcat (buffer, machine_suffix);
3947 if (is_directory (buffer, multilib_dir, 1))
3949 do_spec_1 ("-L", 0, NULL_PTR);
3950 #ifdef SPACE_AFTER_L_OPTION
3951 do_spec_1 (" ", 0, NULL_PTR);
3953 do_spec_1 (buffer, 1, NULL_PTR);
3954 do_spec_1 (multilib_dir, 1, NULL_PTR);
3955 /* Make this a separate argument. */
3956 do_spec_1 (" ", 0, NULL_PTR);
3959 if (!pl->require_machine_suffix)
3961 if (is_directory (pl->prefix, multilib_dir, 1))
3963 do_spec_1 ("-L", 0, NULL_PTR);
3964 #ifdef SPACE_AFTER_L_OPTION
3965 do_spec_1 (" ", 0, NULL_PTR);
3967 do_spec_1 (pl->prefix, 1, NULL_PTR);
3968 do_spec_1 (multilib_dir, 1, NULL_PTR);
3969 /* Make this a separate argument. */
3970 do_spec_1 (" ", 0, NULL_PTR);
3976 if (is_directory (pl->prefix, machine_suffix, 1))
3978 do_spec_1 ("-L", 0, NULL_PTR);
3979 #ifdef SPACE_AFTER_L_OPTION
3980 do_spec_1 (" ", 0, NULL_PTR);
3982 do_spec_1 (pl->prefix, 1, NULL_PTR);
3983 /* Remove slash from machine_suffix. */
3984 if (strlen (machine_suffix) >= bufsize)
3985 bufsize = strlen (machine_suffix) * 2 + 1;
3986 buffer = (char *) xrealloc (buffer, bufsize);
3987 strcpy (buffer, machine_suffix);
3988 idx = strlen (buffer);
3989 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3990 buffer[idx - 1] = 0;
3991 do_spec_1 (buffer, 1, NULL_PTR);
3992 /* Make this a separate argument. */
3993 do_spec_1 (" ", 0, NULL_PTR);
3996 if (!pl->require_machine_suffix)
3998 if (is_directory (pl->prefix, "", 1))
4000 do_spec_1 ("-L", 0, NULL_PTR);
4001 #ifdef SPACE_AFTER_L_OPTION
4002 do_spec_1 (" ", 0, NULL_PTR);
4004 /* Remove slash from pl->prefix. */
4005 if (strlen (pl->prefix) >= bufsize)
4006 bufsize = strlen (pl->prefix) * 2 + 1;
4007 buffer = (char *) xrealloc (buffer, bufsize);
4008 strcpy (buffer, pl->prefix);
4009 idx = strlen (buffer);
4010 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4011 buffer[idx - 1] = 0;
4012 do_spec_1 (buffer, 1, NULL_PTR);
4013 /* Make this a separate argument. */
4014 do_spec_1 (" ", 0, NULL_PTR);
4023 /* %efoo means report an error with `foo' as error message
4024 and don't execute any more commands for this file. */
4028 while (*p != 0 && *p != '\n')
4030 buf = (char *) alloca (p - q + 1);
4031 strncpy (buf, q, p - q);
4042 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4043 and it is not a directory, and it is writable, use it.
4044 Otherwise, fall through and treat this like any other
4047 if ((!save_temps_flag)
4048 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4049 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4051 obstack_grow (&obstack, HOST_BIT_BUCKET,
4052 strlen (HOST_BIT_BUCKET));
4053 delete_this_arg = 0;
4061 if (save_temps_flag)
4063 obstack_grow (&obstack, input_basename, basename_length);
4064 delete_this_arg = 0;
4068 struct temp_name *t;
4070 const char *suffix = p;
4071 char *saved_suffix = NULL;
4073 while (*p == '.' || ISALPHA ((unsigned char) *p))
4075 suffix_length = p - suffix;
4076 if (p[0] == '%' && p[1] == 'O')
4079 /* We don't support extra suffix characters after %O. */
4080 if (*p == '.' || ISALPHA ((unsigned char) *p))
4082 if (suffix_length == 0)
4083 suffix = OBJECT_SUFFIX;
4087 = (char *) xmalloc (suffix_length
4088 + strlen (OBJECT_SUFFIX));
4089 strncpy (saved_suffix, suffix, suffix_length);
4090 strcpy (saved_suffix + suffix_length,
4093 suffix_length += strlen (OBJECT_SUFFIX);
4096 /* See if we already have an association of %g/%u/%U and
4098 for (t = temp_names; t; t = t->next)
4099 if (t->length == suffix_length
4100 && strncmp (t->suffix, suffix, suffix_length) == 0
4101 && t->unique == (c != 'g'))
4104 /* Make a new association if needed. %u and %j require one. */
4105 if (t == 0 || c == 'u' || c == 'j')
4109 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4110 t->next = temp_names;
4113 t->length = suffix_length;
4114 t->suffix = save_string (suffix, suffix_length);
4115 t->unique = (c != 'g');
4116 temp_filename = make_temp_file (t->suffix);
4117 temp_filename_length = strlen (temp_filename);
4118 t->filename = temp_filename;
4119 t->filename_length = temp_filename_length;
4123 free (saved_suffix);
4125 obstack_grow (&obstack, t->filename, t->filename_length);
4126 delete_this_arg = 1;
4132 obstack_grow (&obstack, input_filename, input_filename_length);
4138 struct prefix_list *pl = include_prefixes.plist;
4140 if (gcc_exec_prefix)
4142 do_spec_1 ("-iprefix", 1, NULL_PTR);
4143 /* Make this a separate argument. */
4144 do_spec_1 (" ", 0, NULL_PTR);
4145 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4146 do_spec_1 (" ", 0, NULL_PTR);
4149 for (; pl; pl = pl->next)
4151 do_spec_1 ("-isystem", 1, NULL_PTR);
4152 /* Make this a separate argument. */
4153 do_spec_1 (" ", 0, NULL_PTR);
4154 do_spec_1 (pl->prefix, 1, NULL_PTR);
4155 do_spec_1 (" ", 0, NULL_PTR);
4162 int max = n_infiles;
4163 max += lang_specific_extra_outfiles;
4165 for (i = 0; i < max; i++)
4167 store_arg (outfiles[i], 0, 0);
4172 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4177 this_is_library_file = 1;
4181 this_is_output_file = 1;
4186 int cur_index = argbuf_index;
4187 /* Handle the {...} following the %W. */
4190 p = handle_braces (p + 1);
4193 /* If any args were output, mark the last one for deletion
4195 if (argbuf_index != cur_index)
4196 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4200 /* %x{OPTION} records OPTION for %X to output. */
4206 /* Skip past the option value and make a copy. */
4211 string = save_string (p1 + 1, p - p1 - 2);
4213 /* See if we already recorded this option. */
4214 for (i = 0; i < n_linker_options; i++)
4215 if (! strcmp (string, linker_options[i]))
4221 /* This option is new; add it. */
4222 add_linker_option (string, strlen (string));
4226 /* Dump out the options accumulated previously using %x. */
4228 for (i = 0; i < n_linker_options; i++)
4230 do_spec_1 (linker_options[i], 1, NULL_PTR);
4231 /* Make each accumulated option a separate argument. */
4232 do_spec_1 (" ", 0, NULL_PTR);
4236 /* Dump out the options accumulated previously using -Wa,. */
4238 for (i = 0; i < n_assembler_options; i++)
4240 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4241 /* Make each accumulated option a separate argument. */
4242 do_spec_1 (" ", 0, NULL_PTR);
4246 /* Dump out the options accumulated previously using -Wp,. */
4248 for (i = 0; i < n_preprocessor_options; i++)
4250 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4251 /* Make each accumulated option a separate argument. */
4252 do_spec_1 (" ", 0, NULL_PTR);
4256 /* Here are digits and numbers that just process
4257 a certain constant string as a spec. */
4260 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4266 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4272 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4278 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4284 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4290 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4296 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4302 value = do_spec_1 (link_spec, 0, NULL_PTR);
4308 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4314 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4321 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4325 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4329 if (! strncmp (y, "-D", 2))
4330 /* Copy the whole option. */
4331 while (*y && *y != ' ' && *y != '\t')
4333 else if (*y == ' ' || *y == '\t')
4334 /* Copy whitespace to the result. */
4336 /* Don't copy other options. */
4343 value = do_spec_1 (buf, 0, NULL_PTR);
4351 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4355 /* Copy all of CPP_PREDEFINES into BUF,
4356 but force them all into the reserved name space if they
4357 aren't already there. The reserved name space is all
4358 identifiers beginning with two underscores or with one
4359 underscore and a capital letter. We do the forcing by
4360 adding up to two underscores to the beginning and end
4361 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4366 if (! strncmp (y, "-D", 2))
4375 && ! ISUPPER ((unsigned char) *(y + 1))))
4377 /* Stick __ at front of macro name. */
4381 /* Arrange to stick __ at the end as well. */
4385 /* Copy the macro name. */
4386 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4399 /* Copy the value given, if any. */
4400 while (*y && *y != ' ' && *y != '\t')
4403 else if (*y == ' ' || *y == '\t')
4404 /* Copy whitespace to the result. */
4406 /* Don't copy -A options */
4412 /* Copy all of CPP_PREDEFINES into BUF,
4413 but put __ after every -D. */
4417 if (! strncmp (y, "-D", 2))
4423 && ! ISUPPER ((unsigned char) *(y + 1))))
4425 /* Stick -D__ at front of macro name. */
4432 /* Copy the macro name. */
4433 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4436 /* Copy the value given, if any. */
4437 while (*y && *y != ' ' && *y != '\t')
4442 /* Do not copy this macro - we have just done it before */
4443 while (*y && *y != ' ' && *y != '\t')
4447 else if (*y == ' ' || *y == '\t')
4448 /* Copy whitespace to the result. */
4450 /* Don't copy -A options. */
4456 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4460 if (! strncmp (y, "-A", 2))
4461 /* Copy the whole option. */
4462 while (*y && *y != ' ' && *y != '\t')
4464 else if (*y == ' ' || *y == '\t')
4465 /* Copy whitespace to the result. */
4467 /* Don't copy other options. */
4474 value = do_spec_1 (buf, 0, NULL_PTR);
4481 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4486 /* Here we define characters other than letters and digits. */
4489 p = handle_braces (p);
4495 obstack_1grow (&obstack, '%');
4499 if (soft_matched_part)
4501 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4502 do_spec_1 (" ", 0, NULL_PTR);
4505 /* Catch the case where a spec string contains something like
4506 '%{foo:%*}'. ie there is no * in the pattern on the left
4507 hand side of the :. */
4508 error ("Spec failure: '%%*' has not been initialised by pattern match");
4511 /* Process a string found as the value of a spec given by name.
4512 This feature allows individual machine descriptions
4513 to add and use their own specs.
4514 %[...] modifies -D options the way %P does;
4515 %(...) uses the spec unmodified. */
4517 error ("Warning: use of obsolete %%[ operator in specs");
4520 const char *name = p;
4521 struct spec_list *sl;
4524 /* The string after the S/P is the name of a spec that is to be
4526 while (*p && *p != ')' && *p != ']')
4529 /* See if it's in the list. */
4530 for (len = p - name, sl = specs; sl; sl = sl->next)
4531 if (sl->name_len == len && !strncmp (sl->name, name, len))
4533 name = *(sl->ptr_spec);
4535 notice ("Processing spec %c%s%c, which is '%s'\n",
4536 c, sl->name, (c == '(') ? ')' : ']', name);
4545 value = do_spec_1 (name, 0, NULL_PTR);
4551 char *x = (char *) alloca (strlen (name) * 2 + 1);
4553 const char *y = name;
4556 /* Copy all of NAME into BUF, but put __ after
4557 every -D and at the end of each arg. */
4560 if (! strncmp (y, "-D", 2))
4571 && (*y == ' ' || *y == '\t' || *y == '='
4572 || *y == '}' || *y == 0))
4585 value = do_spec_1 (buf, 0, NULL_PTR);
4591 /* Discard the closing paren or bracket. */
4599 int c1 = *p++; /* Select first or second version number. */
4600 const char *v = compiler_version;
4602 static const char zeroc = '0';
4604 /* The format of the version string is
4605 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4607 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4608 while (! ISDIGIT (*v))
4610 if (v > compiler_version && v[-1] != '-')
4613 /* If desired, advance to second version number. */
4616 /* Set V after the first period. */
4617 while (ISDIGIT (*v))
4624 /* If desired, advance to third version number.
4625 But don't complain if it's not present */
4628 /* Set V after the second period. */
4629 while (ISDIGIT (*v))
4631 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4637 /* Set Q at the next period or at the end. */
4639 while (ISDIGIT (*q))
4641 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4645 /* Put that part into the command. */
4646 obstack_grow (&obstack, v, q - v);
4648 /* Default to "0" */
4649 obstack_grow (&obstack, &zeroc, 1);
4655 if (input_from_pipe)
4656 do_spec_1 ("-", 0, NULL_PTR);
4660 error ("Spec failure: Unrecognised spec option '%c'", c);
4666 /* Backslash: treat next character as ordinary. */
4671 /* Ordinary character: put it into the current argument. */
4672 obstack_1grow (&obstack, c);
4676 /* End of string. */
4680 /* Return 0 if we call do_spec_1 and that returns -1. */
4684 register const char *p;
4686 const char *filter, *body = NULL, *endbody = NULL;
4690 int include_blanks = 1;
4691 int elide_switch = 0;
4695 /* A '^' after the open-brace means to not give blanks before args. */
4702 /* A `|' after the open-brace means,
4703 if the test fails, output a single minus sign rather than nothing.
4704 This is used in %{|!pipe:...}. */
4711 /* A `<' after the open-brace means that the switch should be
4712 removed from the command-line. */
4718 negate = suffix = 0;
4721 /* A `!' after the open-brace negates the condition:
4722 succeed if the specified switch is not present. */
4726 /* A `.' after the open-brace means test against the current suffix. */
4735 if (elide_switch && (negate || pipe_p || suffix))
4737 /* It doesn't make sense to mix elision with other flags. We
4738 could fatal() here, but the standard seems to be to abort. */
4743 while (*p != ':' && *p != '}' && *p != '|')
4746 if (*p == '|' && pipe_p)
4753 register int count = 1;
4754 register const char *q = p;
4773 body = p, endbody = p + 1;
4778 int found = (input_suffix != 0
4779 && (long) strlen (input_suffix) == (long) (p - filter)
4780 && strncmp (input_suffix, filter, p - filter) == 0);
4786 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4789 else if (p[-1] == '*' && p[0] == '}')
4791 /* Substitute all matching switches as separate args. */
4794 for (i = 0; i < n_switches; i++)
4795 if (!strncmp (switches[i].part1, filter, p - filter)
4796 && check_live_switch (i, p - filter))
4797 give_switch (i, 0, include_blanks);
4801 /* Test for presence of the specified switch. */
4805 /* If name specified ends in *, as in {x*:...},
4806 check for %* and handle that case. */
4807 if (p[-1] == '*' && !negate)
4810 const char *r = body;
4812 /* First see whether we have %*. */
4816 if (*r == '%' && r[1] == '*')
4820 /* If we do, handle that case. */
4823 /* Substitute all matching switches as separate args.
4824 But do this by substituting for %*
4825 in the text that follows the colon. */
4827 unsigned hard_match_len = p - filter - 1;
4828 char *string = save_string (body, endbody - body - 1);
4830 for (i = 0; i < n_switches; i++)
4831 if (!strncmp (switches[i].part1, filter, hard_match_len)
4832 && check_live_switch (i, -1))
4834 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4835 /* Pass any arguments this switch has. */
4836 give_switch (i, 1, 1);
4839 /* We didn't match. Try again. */
4846 /* If name specified ends in *, as in {x*:...},
4847 check for presence of any switch name starting with x. */
4850 for (i = 0; i < n_switches; i++)
4852 unsigned hard_match_len = p - filter - 1;
4854 if (!strncmp (switches[i].part1, filter, hard_match_len)
4855 && check_live_switch (i, hard_match_len))
4862 /* Otherwise, check for presence of exact name specified. */
4865 for (i = 0; i < n_switches; i++)
4867 if (!strncmp (switches[i].part1, filter, p - filter)
4868 && switches[i].part1[p - filter] == 0
4869 && check_live_switch (i, -1))
4877 /* If it is as desired (present for %{s...}, absent for %{!s...})
4878 then substitute either the switch or the specified
4879 conditional text. */
4880 if (present != negate)
4884 switches[i].live_cond = SWITCH_IGNORE;
4885 switches[i].validated = 1;
4889 give_switch (i, 0, include_blanks);
4893 if (do_spec_1 (save_string (body, endbody - body - 1),
4900 /* Here if a %{|...} conditional fails: output a minus sign,
4901 which means "standard output" or "standard input". */
4902 do_spec_1 ("-", 0, NULL_PTR);
4907 /* We didn't match; try again. */
4914 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4915 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4916 spec, or -1 if either exact match or %* is used.
4918 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4919 whose value does not begin with "no-" is obsoleted by the same value
4920 with the "no-", similarly for a switch with the "no-" prefix. */
4923 check_live_switch (switchnum, prefix_length)
4927 const char *name = switches[switchnum].part1;
4930 /* In the common case of {<at-most-one-letter>*}, a negating
4931 switch would always match, so ignore that case. We will just
4932 send the conflicting switches to the compiler phase. */
4933 if (prefix_length >= 0 && prefix_length <= 1)
4936 /* If we already processed this switch and determined if it was
4937 live or not, return our past determination. */
4938 if (switches[switchnum].live_cond != 0)
4939 return switches[switchnum].live_cond > 0;
4941 /* Now search for duplicate in a manner that depends on the name. */
4945 for (i = switchnum + 1; i < n_switches; i++)
4946 if (switches[i].part1[0] == 'O')
4948 switches[switchnum].validated = 1;
4949 switches[switchnum].live_cond = SWITCH_FALSE;
4954 case 'W': case 'f': case 'm':
4955 if (! strncmp (name + 1, "no-", 3))
4957 /* We have Xno-YYY, search for XYYY. */
4958 for (i = switchnum + 1; i < n_switches; i++)
4959 if (switches[i].part1[0] == name[0]
4960 && ! strcmp (&switches[i].part1[1], &name[4]))
4962 switches[switchnum].validated = 1;
4963 switches[switchnum].live_cond = SWITCH_FALSE;
4969 /* We have XYYY, search for Xno-YYY. */
4970 for (i = switchnum + 1; i < n_switches; i++)
4971 if (switches[i].part1[0] == name[0]
4972 && switches[i].part1[1] == 'n'
4973 && switches[i].part1[2] == 'o'
4974 && switches[i].part1[3] == '-'
4975 && !strcmp (&switches[i].part1[4], &name[1]))
4977 switches[switchnum].validated = 1;
4978 switches[switchnum].live_cond = SWITCH_FALSE;
4985 /* Otherwise the switch is live. */
4986 switches[switchnum].live_cond = SWITCH_LIVE;
4990 /* Pass a switch to the current accumulating command
4991 in the same form that we received it.
4992 SWITCHNUM identifies the switch; it is an index into
4993 the vector of switches gcc received, which is `switches'.
4994 This cannot fail since it never finishes a command line.
4996 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4998 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5002 give_switch (switchnum, omit_first_word, include_blanks)
5004 int omit_first_word;
5007 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5010 if (!omit_first_word)
5012 do_spec_1 ("-", 0, NULL_PTR);
5013 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5016 if (switches[switchnum].args != 0)
5019 for (p = switches[switchnum].args; *p; p++)
5022 do_spec_1 (" ", 0, NULL_PTR);
5023 do_spec_1 (*p, 1, NULL_PTR);
5027 do_spec_1 (" ", 0, NULL_PTR);
5028 switches[switchnum].validated = 1;
5031 /* Search for a file named NAME trying various prefixes including the
5032 user's -B prefix and some standard ones.
5033 Return the absolute file name found. If nothing is found, return NAME. */
5041 /* Try multilib_dir if it is defined. */
5042 if (multilib_dir != NULL)
5046 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5047 strcpy (try, multilib_dir);
5048 strcat (try, dir_separator_str);
5051 newname = find_a_file (&startfile_prefixes, try, R_OK);
5053 /* If we don't find it in the multi library dir, then fall
5054 through and look for it in the normal places. */
5055 if (newname != NULL)
5059 newname = find_a_file (&startfile_prefixes, name, R_OK);
5060 return newname ? newname : name;
5063 /* Determine whether a directory exists. If LINKER, return 0 for
5064 certain fixed names not needed by the linker. If not LINKER, it is
5065 only important to return 0 if the host machine has a small ARG_MAX
5069 is_directory (path1, path2, linker)
5074 int len1 = strlen (path1);
5075 int len2 = strlen (path2);
5076 char *path = (char *) alloca (3 + len1 + len2);
5080 #ifndef SMALL_ARG_MAX
5085 /* Construct the path from the two parts. Ensure the string ends with "/.".
5086 The resulting path will be a directory even if the given path is a
5088 memcpy (path, path1, len1);
5089 memcpy (path + len1, path2, len2);
5090 cp = path + len1 + len2;
5091 if (!IS_DIR_SEPARATOR (cp[-1]))
5092 *cp++ = DIR_SEPARATOR;
5096 /* Exclude directories that the linker is known to search. */
5099 && strcmp (path, concat (dir_separator_str, "lib",
5100 dir_separator_str, ".", NULL_PTR)) == 0)
5102 && strcmp (path, concat (dir_separator_str, "usr",
5103 dir_separator_str, "lib",
5104 dir_separator_str, ".", NULL_PTR)) == 0)))
5107 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5110 /* Set up the various global variables to indicate that we're processing
5111 the input file named FILENAME. */
5114 set_input (filename)
5115 const char *filename;
5117 register const char *p;
5119 input_filename = filename;
5120 input_filename_length = strlen (input_filename);
5122 input_basename = input_filename;
5123 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5124 /* Skip drive name so 'x:foo' is handled properly. */
5125 if (input_basename[1] == ':')
5126 input_basename += 2;
5128 for (p = input_basename; *p; p++)
5129 if (IS_DIR_SEPARATOR (*p))
5130 input_basename = p + 1;
5132 /* Find a suffix starting with the last period,
5133 and set basename_length to exclude that suffix. */
5134 basename_length = strlen (input_basename);
5135 suffixed_basename_length = basename_length;
5136 p = input_basename + basename_length;
5137 while (p != input_basename && *p != '.')
5139 if (*p == '.' && p != input_basename)
5141 basename_length = p - input_basename;
5142 input_suffix = p + 1;
5148 /* On fatal signals, delete all the temporary files. */
5151 fatal_error (signum)
5154 signal (signum, SIG_DFL);
5155 delete_failure_queue ();
5156 delete_temp_files ();
5157 /* Get the same signal again, this time not handled,
5158 so its normal effect occurs. */
5159 kill (getpid (), signum);
5162 extern int main PARAMS ((int, const char *const *));
5167 const char *const *argv;
5171 int linker_was_run = 0;
5172 char *explicit_link_files;
5175 struct user_specs *uptr;
5177 p = argv[0] + strlen (argv[0]);
5178 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5182 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5183 /* Perform host dependant initialization when needed. */
5184 GCC_DRIVER_HOST_INITIALIZATION;
5187 #ifdef HAVE_LC_MESSAGES
5188 setlocale (LC_MESSAGES, "");
5190 (void) bindtextdomain (PACKAGE, localedir);
5191 (void) textdomain (PACKAGE);
5193 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5194 signal (SIGINT, fatal_error);
5196 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5197 signal (SIGHUP, fatal_error);
5199 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5200 signal (SIGTERM, fatal_error);
5202 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5203 signal (SIGPIPE, fatal_error);
5207 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5209 obstack_init (&obstack);
5211 /* Build multilib_select, et. al from the separate lines that make up each
5212 multilib selection. */
5214 const char *const *q = multilib_raw;
5217 obstack_init (&multilib_obstack);
5218 while ((p = *q++) != (char *) 0)
5219 obstack_grow (&multilib_obstack, p, strlen (p));
5221 obstack_1grow (&multilib_obstack, 0);
5222 multilib_select = obstack_finish (&multilib_obstack);
5224 q = multilib_matches_raw;
5225 while ((p = *q++) != (char *) 0)
5226 obstack_grow (&multilib_obstack, p, strlen (p));
5228 obstack_1grow (&multilib_obstack, 0);
5229 multilib_matches = obstack_finish (&multilib_obstack);
5231 q = multilib_exclusions_raw;
5232 while ((p = *q++) != (char *) 0)
5233 obstack_grow (&multilib_obstack, p, strlen (p));
5235 obstack_1grow (&multilib_obstack, 0);
5236 multilib_exclusions = obstack_finish (&multilib_obstack);
5239 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5242 obstack_1grow (&multilib_obstack, ' ');
5243 obstack_grow (&multilib_obstack,
5244 multilib_defaults_raw[i],
5245 strlen (multilib_defaults_raw[i]));
5249 obstack_1grow (&multilib_obstack, 0);
5250 multilib_defaults = obstack_finish (&multilib_obstack);
5253 /* Set up to remember the pathname of gcc and any options
5254 needed for collect. We use argv[0] instead of programname because
5255 we need the complete pathname. */
5256 obstack_init (&collect_obstack);
5257 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5258 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5259 putenv (obstack_finish (&collect_obstack));
5261 #ifdef INIT_ENVIRONMENT
5262 /* Set up any other necessary machine specific environment variables. */
5263 putenv (INIT_ENVIRONMENT);
5266 /* Make a table of what switches there are (switches, n_switches).
5267 Make a table of specified input files (infiles, n_infiles).
5268 Decode switches that are handled locally. */
5270 process_command (argc, argv);
5275 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5277 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5278 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5281 for (i = 0; (int) i < n_switches; i++)
5283 const char *const *args;
5286 obstack_grow (&collect_obstack, " ", 1);
5289 obstack_grow (&collect_obstack, "'-", 2);
5290 q = switches[i].part1;
5291 while ((p = strchr (q, '\'')))
5293 obstack_grow (&collect_obstack, q, p - q);
5294 obstack_grow (&collect_obstack, "'\\''", 4);
5297 obstack_grow (&collect_obstack, q, strlen (q));
5298 obstack_grow (&collect_obstack, "'", 1);
5300 for (args = switches[i].args; args && *args; args++)
5302 obstack_grow (&collect_obstack, " '", 2);
5304 while ((p = strchr (q, '\'')))
5306 obstack_grow (&collect_obstack, q, p - q);
5307 obstack_grow (&collect_obstack, "'\\''", 4);
5310 obstack_grow (&collect_obstack, q, strlen (q));
5311 obstack_grow (&collect_obstack, "'", 1);
5314 obstack_grow (&collect_obstack, "\0", 1);
5315 putenv (obstack_finish (&collect_obstack));
5318 /* Initialize the vector of specs to just the default.
5319 This means one element containing 0s, as a terminator. */
5321 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5322 memcpy ((char *) compilers, (char *) default_compilers,
5323 sizeof default_compilers);
5324 n_compilers = n_default_compilers;
5326 /* Read specs from a file if there is one. */
5328 machine_suffix = concat (spec_machine, dir_separator_str,
5329 spec_version, dir_separator_str, NULL_PTR);
5330 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5332 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5333 /* Read the specs file unless it is a default one. */
5334 if (specs_file != 0 && strcmp (specs_file, "specs"))
5335 read_specs (specs_file, TRUE);
5339 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5340 for any override of as, ld and libraries. */
5341 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5342 + strlen (just_machine_suffix)
5343 + sizeof ("specs"));
5345 strcpy (specs_file, standard_exec_prefix);
5346 strcat (specs_file, just_machine_suffix);
5347 strcat (specs_file, "specs");
5348 if (access (specs_file, R_OK) == 0)
5349 read_specs (specs_file, TRUE);
5351 /* If not cross-compiling, look for startfiles in the standard places. */
5352 if (*cross_compile == '0')
5354 if (*md_exec_prefix)
5356 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5357 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5358 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5359 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5362 if (*md_startfile_prefix)
5363 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5364 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5366 if (*md_startfile_prefix_1)
5367 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5368 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5370 /* If standard_startfile_prefix is relative, base it on
5371 standard_exec_prefix. This lets us move the installed tree
5372 as a unit. If GCC_EXEC_PREFIX is defined, base
5373 standard_startfile_prefix on that as well. */
5374 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5375 || *standard_startfile_prefix == '$'
5376 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5377 /* Check for disk name on MS-DOS-based systems. */
5378 || (standard_startfile_prefix[1] == ':'
5379 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5382 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5383 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5386 if (gcc_exec_prefix)
5387 add_prefix (&startfile_prefixes,
5388 concat (gcc_exec_prefix, machine_suffix,
5389 standard_startfile_prefix, NULL_PTR),
5390 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5391 add_prefix (&startfile_prefixes,
5392 concat (standard_exec_prefix,
5394 standard_startfile_prefix, NULL_PTR),
5395 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5398 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5399 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5400 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5401 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5402 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5403 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5404 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5409 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5410 add_prefix (&startfile_prefixes,
5411 concat (gcc_exec_prefix, machine_suffix,
5412 standard_startfile_prefix, NULL_PTR),
5413 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5416 /* Process any user specified specs in the order given on the command
5418 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5420 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5421 read_specs (filename ? filename : uptr->filename, FALSE);
5424 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5425 if (gcc_exec_prefix)
5427 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5428 + strlen (spec_version)
5429 + strlen (spec_machine) + 3);
5430 strcpy (temp, gcc_exec_prefix);
5431 strcat (temp, spec_machine);
5432 strcat (temp, dir_separator_str);
5433 strcat (temp, spec_version);
5434 strcat (temp, dir_separator_str);
5435 gcc_exec_prefix = temp;
5438 /* Now we have the specs.
5439 Set the `valid' bits for switches that match anything in any spec. */
5441 validate_all_switches ();
5443 /* Now that we have the switches and the specs, set
5444 the subdirectory based on the options. */
5445 set_multilib_dir ();
5447 /* Warn about any switches that no pass was interested in. */
5449 for (i = 0; (int) i < n_switches; i++)
5450 if (! switches[i].validated)
5451 error ("unrecognized option `-%s'", switches[i].part1);
5453 /* Obey some of the options. */
5455 if (print_search_dirs)
5457 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5458 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5459 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5463 if (print_file_name)
5465 printf ("%s\n", find_file (print_file_name));
5469 if (print_prog_name)
5471 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5472 printf ("%s\n", (newname ? newname : print_prog_name));
5476 if (print_multi_lib)
5478 print_multilib_info ();
5482 if (print_multi_directory)
5484 if (multilib_dir == NULL)
5487 printf ("%s\n", multilib_dir);
5491 if (print_help_list)
5497 printf (_("\nFor bug reporting instructions, please see:\n"));
5498 printf ("%s.\n", GCCBUGURL);
5503 /* We do not exit here. Instead we have created a fake input file
5504 called 'help-dummy' which needs to be compiled, and we pass this
5505 on the the various sub-processes, along with the --help switch. */
5512 notice ("Configured with: %s\n", configuration_arguments);
5514 /* compiler_version is truncated at the first space when initialized
5515 from version string, so truncate version_string at the first space
5516 before comparing. */
5517 for (n = 0; version_string[n]; n++)
5518 if (version_string[n] == ' ')
5521 if (! strncmp (version_string, compiler_version, n)
5522 && compiler_version[n] == 0)
5523 notice ("gcc version %s\n", version_string);
5525 notice ("gcc driver version %s executing gcc version %s\n",
5526 version_string, compiler_version);
5532 if (n_infiles == added_libraries)
5533 fatal ("No input files");
5535 /* Make a place to record the compiler output file names
5536 that correspond to the input files. */
5539 i += lang_specific_extra_outfiles;
5540 outfiles = (const char **) xcalloc (i, sizeof (char *));
5542 /* Record which files were specified explicitly as link input. */
5544 explicit_link_files = xcalloc (1, n_infiles);
5546 for (i = 0; (int) i < n_infiles; i++)
5548 register struct compiler *cp = 0;
5549 int this_file_error = 0;
5551 /* Tell do_spec what to substitute for %i. */
5553 input_file_number = i;
5554 set_input (infiles[i].name);
5556 /* Use the same thing in %o, unless cp->spec says otherwise. */
5558 outfiles[i] = input_filename;
5560 /* Figure out which compiler from the file's suffix. */
5562 cp = lookup_compiler (infiles[i].name, input_filename_length,
5563 infiles[i].language);
5567 /* Ok, we found an applicable compiler. Run its spec. */
5569 if (cp->spec[0] == '#')
5570 error ("%s: %s compiler not installed on this system",
5571 input_filename, &cp->spec[1]);
5572 value = do_spec (cp->spec);
5574 this_file_error = 1;
5577 /* If this file's name does not contain a recognized suffix,
5578 record it as explicit linker input. */
5581 explicit_link_files[i] = 1;
5583 /* Clear the delete-on-failure queue, deleting the files in it
5584 if this compilation failed. */
5586 if (this_file_error)
5588 delete_failure_queue ();
5591 /* If this compilation succeeded, don't delete those files later. */
5592 clear_failure_queue ();
5595 /* Reset the output file name to the first input file name, for use
5596 with %b in LINK_SPEC on a target that prefers not to emit a.out
5599 set_input (infiles[0].name);
5601 if (error_count == 0)
5603 /* Make sure INPUT_FILE_NUMBER points to first available open
5605 input_file_number = n_infiles;
5606 if (lang_specific_pre_link ())
5610 /* Run ld to link all the compiler output files. */
5612 if (error_count == 0)
5614 int tmp = execution_count;
5616 /* We'll use ld if we can't find collect2. */
5617 if (! strcmp (linker_name_spec, "collect2"))
5619 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5621 linker_name_spec = "ld";
5623 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5625 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5626 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5628 value = do_spec (link_command_spec);
5631 linker_was_run = (tmp != execution_count);
5634 /* If options said don't run linker,
5635 complain about input files to be given to the linker. */
5637 if (! linker_was_run && error_count == 0)
5638 for (i = 0; (int) i < n_infiles; i++)
5639 if (explicit_link_files[i])
5640 error ("%s: linker input file unused because linking not done",
5643 /* Delete some or all of the temporary files we made. */
5646 delete_failure_queue ();
5647 delete_temp_files ();
5649 if (print_help_list)
5651 printf (("\nFor bug reporting instructions, please see:\n"));
5652 printf ("%s\n", GCCBUGURL);
5655 return (signal_count != 0 ? 2
5656 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5660 /* Find the proper compilation spec for the file name NAME,
5661 whose length is LENGTH. LANGUAGE is the specified language,
5662 or 0 if this file is to be passed to the linker. */
5664 static struct compiler *
5665 lookup_compiler (name, length, language)
5668 const char *language;
5670 struct compiler *cp;
5672 /* If this was specified by the user to be a linker input, indicate that. */
5673 if (language != 0 && language[0] == '*')
5676 /* Otherwise, look for the language, if one is spec'd. */
5679 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5680 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5683 error ("language %s not recognized", language);
5687 /* Look for a suffix. */
5688 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5690 if (/* The suffix `-' matches only the file name `-'. */
5691 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5692 || (strlen (cp->suffix) < length
5693 /* See if the suffix matches the end of NAME. */
5694 && !strcmp (cp->suffix,
5695 name + length - strlen (cp->suffix))
5700 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5701 /* look again, but case-insensitively this time. */
5703 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5705 if (/* The suffix `-' matches only the file name `-'. */
5706 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5707 || (strlen (cp->suffix) < length
5708 /* See if the suffix matches the end of NAME. */
5709 && ((!strcmp (cp->suffix,
5710 name + length - strlen (cp->suffix))
5711 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5712 && !strcasecmp (cp->suffix,
5713 name + length - strlen (cp->suffix)))
5719 if (cp >= compilers)
5721 if (cp->spec[0] != '@')
5722 /* A non-alias entry: return it. */
5725 /* An alias entry maps a suffix to a language.
5726 Search for the language; pass 0 for NAME and LENGTH
5727 to avoid infinite recursion if language not found. */
5728 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5734 save_string (s, len)
5738 register char *result = xmalloc (len + 1);
5740 memcpy (result, s, len);
5746 pfatal_with_name (name)
5749 perror_with_name (name);
5750 delete_temp_files ();
5755 perror_with_name (name)
5758 error ("%s: %s", name, xstrerror (errno));
5762 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5763 const char *errmsg_fmt;
5764 const char *errmsg_arg;
5768 int save_errno = errno;
5770 /* Space for trailing '\0' is in %s. */
5771 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5772 sprintf (msg, errmsg_fmt, errmsg_arg);
5778 pfatal_with_name (errmsg_fmt);
5781 /* Output an error message and exit */
5786 fatal ("Internal gcc abort.");
5789 /* Output an error message and exit */
5792 fatal VPARAMS ((const char *msgid, ...))
5794 #ifndef ANSI_PROTOTYPES
5799 VA_START (ap, msgid);
5801 #ifndef ANSI_PROTOTYPES
5802 msgid = va_arg (ap, const char *);
5805 fprintf (stderr, "%s: ", programname);
5806 vfprintf (stderr, _(msgid), ap);
5808 fprintf (stderr, "\n");
5809 delete_temp_files ();
5814 error VPARAMS ((const char *msgid, ...))
5816 #ifndef ANSI_PROTOTYPES
5821 VA_START (ap, msgid);
5823 #ifndef ANSI_PROTOTYPES
5824 msgid = va_arg (ap, const char *);
5827 fprintf (stderr, "%s: ", programname);
5828 vfprintf (stderr, _(msgid), ap);
5831 fprintf (stderr, "\n");
5835 notice VPARAMS ((const char *msgid, ...))
5837 #ifndef ANSI_PROTOTYPES
5842 VA_START (ap, msgid);
5844 #ifndef ANSI_PROTOTYPES
5845 msgid = va_arg (ap, const char *);
5848 vfprintf (stderr, _(msgid), ap);
5853 validate_all_switches ()
5855 struct compiler *comp;
5856 register const char *p;
5858 struct spec_list *spec;
5860 for (comp = compilers; comp->spec; comp++)
5864 if (c == '%' && *p == '{')
5865 /* We have a switch spec. */
5866 validate_switches (p + 1);
5869 /* Look through the linked list of specs read from the specs file. */
5870 for (spec = specs; spec; spec = spec->next)
5872 p = *(spec->ptr_spec);
5874 if (c == '%' && *p == '{')
5875 /* We have a switch spec. */
5876 validate_switches (p + 1);
5879 p = link_command_spec;
5881 if (c == '%' && *p == '{')
5882 /* We have a switch spec. */
5883 validate_switches (p + 1);
5886 /* Look at the switch-name that comes after START
5887 and mark as valid all supplied switches that match it. */
5890 validate_switches (start)
5893 register const char *p = start;
5908 while (*p != ':' && *p != '}')
5913 else if (p[-1] == '*')
5915 /* Mark all matching switches as valid. */
5917 for (i = 0; i < n_switches; i++)
5918 if (!strncmp (switches[i].part1, filter, p - filter))
5919 switches[i].validated = 1;
5923 /* Mark an exact matching switch as valid. */
5924 for (i = 0; i < n_switches; i++)
5926 if (!strncmp (switches[i].part1, filter, p - filter)
5927 && switches[i].part1[p - filter] == 0)
5928 switches[i].validated = 1;
5933 /* Check whether a particular argument was used. The first time we
5934 canonicalize the switches to keep only the ones we care about. */
5944 const char *replace;
5949 static struct mswitchstr *mswitches;
5950 static int n_mswitches;
5955 struct mswitchstr *matches;
5959 /* Break multilib_matches into the component strings of string
5960 and replacement string. */
5961 for (q = multilib_matches; *q != '\0'; q++)
5966 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5968 q = multilib_matches;
5978 matches[i].len = q - matches[i].str;
5980 matches[i].replace = ++q;
5981 while (*q != ';' && *q != '\0')
5987 matches[i].rep_len = q - matches[i].replace;
5993 /* Now build a list of the replacement string for switches that we care
5994 about. Make sure we allocate at least one entry. This prevents
5995 xmalloc from calling fatal, and prevents us from re-executing this
5998 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5999 * (n_switches ? n_switches : 1));
6000 for (i = 0; i < n_switches; i++)
6002 int xlen = strlen (switches[i].part1);
6003 for (j = 0; j < cnt; j++)
6004 if (xlen == matches[j].len
6005 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6007 mswitches[n_mswitches].str = matches[j].replace;
6008 mswitches[n_mswitches].len = matches[j].rep_len;
6009 mswitches[n_mswitches].replace = (char *) 0;
6010 mswitches[n_mswitches].rep_len = 0;
6017 for (i = 0; i < n_mswitches; i++)
6018 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6025 default_arg (p, len)
6029 const char *start, *end;
6031 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6033 while (*start == ' ' || *start == '\t')
6039 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6042 if ((end - start) == len && strncmp (p, start, len) == 0)
6052 /* Work out the subdirectory to use based on the options. The format of
6053 multilib_select is a list of elements. Each element is a subdirectory
6054 name followed by a list of options followed by a semicolon. The format
6055 of multilib_exclusions is the same, but without the preceding
6056 directory. First gcc will check the exclusions, if none of the options
6057 beginning with an exclamation point are present, and all of the other
6058 options are present, then we will ignore this completely. Passing
6059 that, gcc will consider each multilib_select in turn using the same
6060 rules for matching the options. If a match is found, that subdirectory
6067 unsigned int this_path_len;
6068 const char *this_path, *this_arg;
6072 p = multilib_exclusions;
6075 /* Ignore newlines. */
6082 /* Check the arguments. */
6096 while (*p != ' ' && *p != ';')
6103 if (*this_arg != '!')
6111 ok = used_arg (this_arg, p - this_arg);
6125 p = multilib_select;
6128 /* Ignore newlines. */
6135 /* Get the initial path. */
6143 this_path_len = p - this_path;
6145 /* Check the arguments. */
6160 while (*p != ' ' && *p != ';')
6167 if (*this_arg != '!')
6175 /* If this is a default argument, we can just ignore it.
6176 This is true even if this_arg begins with '!'. Beginning
6177 with '!' does not mean that this argument is necessarily
6178 inappropriate for this library: it merely means that
6179 there is a more specific library which uses this
6180 argument. If this argument is a default, we need not
6181 consider that more specific library. */
6182 if (! default_arg (this_arg, p - this_arg))
6184 ok = used_arg (this_arg, p - this_arg);
6195 if (this_path_len != 1
6196 || this_path[0] != '.')
6198 char *new_multilib_dir = xmalloc (this_path_len + 1);
6199 strncpy (new_multilib_dir, this_path, this_path_len);
6200 new_multilib_dir[this_path_len] = '\0';
6201 multilib_dir = new_multilib_dir;
6210 /* Print out the multiple library subdirectory selection
6211 information. This prints out a series of lines. Each line looks
6212 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6213 required. Only the desired options are printed out, the negative
6214 matches. The options are print without a leading dash. There are
6215 no spaces to make it easy to use the information in the shell.
6216 Each subdirectory is printed only once. This assumes the ordering
6217 generated by the genmultilib script. Also, we leave out ones that match
6221 print_multilib_info ()
6223 const char *p = multilib_select;
6224 const char *last_path = 0, *this_path;
6226 unsigned int last_path_len = 0;
6231 /* Ignore newlines. */
6238 /* Get the initial path. */
6247 /* Check for matches with the multilib_exclusions. We don't bother
6248 with the '!' in either list. If any of the exclusion rules match
6249 all of its options with the select rule, we skip it. */
6251 const char *e = multilib_exclusions;
6252 const char *this_arg;
6257 /* Ignore newlines. */
6264 /* Check the arguments. */
6281 while (*e != ' ' && *e != ';')
6292 int len = e - this_arg;
6299 while (*q != ' ' && *q != ';')
6306 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6307 default_arg (this_arg, e - this_arg))
6337 /* If this is a duplicate, skip it. */
6338 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6339 && ! strncmp (last_path, this_path, last_path_len));
6341 last_path = this_path;
6342 last_path_len = p - this_path;
6345 /* If this directory requires any default arguments, we can skip
6346 it. We will already have printed a directory identical to
6347 this one which does not require that default argument. */
6365 while (*q != ' ' && *q != ';')
6373 && default_arg (arg, q - arg))
6388 for (p1 = last_path; p1 < p; p1++)
6407 use_arg = *p != '!';
6412 while (*p != ' ' && *p != ';')
6427 /* If there are extra options, print them now. */
6428 if (multilib_extra && *multilib_extra)
6430 int print_at = TRUE;
6433 for (q = multilib_extra; *q != '\0'; q++)