1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
51 extern int getrusage PARAMS ((int, struct rusage *));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str[] = { DIR_SEPARATOR, 0 };
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes;
103 /* Definition of string containing the arguments given to configure. */
104 #include "configargs.h"
106 /* Flag saying to print the directories gcc will search through looking for
107 programs, libraries, etc. */
109 static int print_search_dirs;
111 /* Flag saying to print the full filename of this file
112 as found through our usual search mechanism. */
114 static const char *print_file_name = NULL;
116 /* As print_file_name, but search for executable file. */
118 static const char *print_prog_name = NULL;
120 /* Flag saying to print the relative path we'd use to
121 find libgcc.a given the current compiler flags. */
123 static int print_multi_directory;
125 /* Flag saying to print the list of subdirectories and
126 compiler flags used to select them in a standard form. */
128 static int print_multi_lib;
130 /* Flag saying to print the command line options understood by gcc and its
133 static int print_help_list;
135 /* Flag indicating whether we should print the command and arguments */
137 static int verbose_flag;
139 /* Flag indicating to print target specific command line options. */
141 static int target_help_flag;
143 /* Flag indicating whether we should report subprocess execution times
144 (if this is supported by the system - see pexecute.c). */
146 static int report_times;
148 /* Nonzero means write "temp" files in source directory
149 and use the source file's name in them, and don't delete them. */
151 static int save_temps_flag;
153 /* The compiler version. */
155 static const char *compiler_version;
157 /* The target version specified with -V */
159 static const char *spec_version = DEFAULT_TARGET_VERSION;
161 /* The target machine specified with -b. */
163 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
165 /* Nonzero if cross-compiling.
166 When -b is used, the value comes from the `specs' file. */
169 static const char *cross_compile = "1";
171 static const char *cross_compile = "0";
174 #ifdef MODIFY_TARGET_NAME
176 /* Information on how to alter the target name based on a command-line
177 switch. The only case we support now is simply appending or deleting a
178 string to or from the end of the first part of the configuration name. */
183 enum add_del {ADD, DELETE} add_del;
186 modify_target[] = MODIFY_TARGET_NAME;
189 /* The number of errors that have occurred; the link phase will not be
190 run if this is non-zero. */
191 static int error_count = 0;
193 /* Greatest exit code of sub-processes that has been encountered up to
195 static int greatest_status = 1;
197 /* This is the obstack which we use to allocate many strings. */
199 static struct obstack obstack;
201 /* This is the obstack to build an environment variable to pass to
202 collect2 that describes all of the relevant switches of what to
203 pass the compiler in building the list of pointers to constructors
206 static struct obstack collect_obstack;
208 /* These structs are used to collect resource usage information for
210 #ifdef HAVE_GETRUSAGE
211 static struct rusage rus, prus;
214 /* Forward declaration for prototypes. */
217 static void init_spec PARAMS ((void));
219 static char **split_directories PARAMS ((const char *, int *));
220 static void free_split_directories PARAMS ((char **));
221 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
223 static void store_arg PARAMS ((const char *, int, int));
224 static char *load_specs PARAMS ((const char *));
225 static void read_specs PARAMS ((const char *, int));
226 static void set_spec PARAMS ((const char *, const char *));
227 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
228 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
229 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
230 static int access_check PARAMS ((const char *, int));
231 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
232 static void add_prefix PARAMS ((struct path_prefix *, const char *,
233 const char *, int, int, int *));
234 static void translate_options PARAMS ((int *, const char *const **));
235 static char *skip_whitespace PARAMS ((char *));
236 static void record_temp_file PARAMS ((const char *, int, int));
237 static void delete_if_ordinary PARAMS ((const char *));
238 static void delete_temp_files PARAMS ((void));
239 static void delete_failure_queue PARAMS ((void));
240 static void clear_failure_queue PARAMS ((void));
241 static int check_live_switch PARAMS ((int, int));
242 static const char *handle_braces PARAMS ((const char *));
243 static char *save_string PARAMS ((const char *, int));
244 static int do_spec_1 PARAMS ((const char *, int, const char *));
245 static const char *find_file PARAMS ((const char *));
246 static int is_directory PARAMS ((const char *, const char *, int));
247 static void validate_switches PARAMS ((const char *));
248 static void validate_all_switches PARAMS ((void));
249 static void give_switch PARAMS ((int, int, int));
250 static int used_arg PARAMS ((const char *, int));
251 static int default_arg PARAMS ((const char *, int));
252 static void set_multilib_dir PARAMS ((void));
253 static void print_multilib_info PARAMS ((void));
254 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
255 static void perror_with_name PARAMS ((const char *));
256 static void pfatal_pexecute PARAMS ((const char *, const char *))
258 static void error PARAMS ((const char *, ...))
260 static void notice PARAMS ((const char *, ...))
262 static void display_help PARAMS ((void));
263 static void add_preprocessor_option PARAMS ((const char *, int));
264 static void add_assembler_option PARAMS ((const char *, int));
265 static void add_linker_option PARAMS ((const char *, int));
266 static void process_command PARAMS ((int, const char *const *));
267 static int execute PARAMS ((void));
268 static void clear_args PARAMS ((void));
269 static void fatal_error PARAMS ((int));
270 static void set_input PARAMS ((const char *));
272 /* Specs are strings containing lines, each of which (if not blank)
273 is made up of a program name, and arguments separated by spaces.
274 The program name must be exact and start from root, since no path
275 is searched and it is unreliable to depend on the current working directory.
276 Redirection of input or output is not supported; the subprograms must
277 accept filenames saying what files to read and write.
279 In addition, the specs can contain %-sequences to substitute variable text
280 or for conditional text. Here is a table of all defined %-sequences.
281 Note that spaces are not generated automatically around the results of
282 expanding these sequences; therefore, you can concatenate them together
283 or with constant text in a single argument.
285 %% substitute one % into the program name or argument.
286 %i substitute the name of the input file being processed.
287 %b substitute the basename of the input file being processed.
288 This is the substring up to (and not including) the last period
289 and not including the directory.
290 %B same as %b, but include the file suffix (text after the last period).
292 substitute a file name that has suffix SUFFIX and is chosen
293 once per compilation, and mark the argument a la %d. To reduce
294 exposure to denial-of-service attacks, the file name is now
295 chosen in a way that is hard to predict even when previously
296 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
297 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
298 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
299 had been pre-processed. Previously, %g was simply substituted
300 with a file name chosen once per compilation, without regard
301 to any appended suffix (which was therefore treated just like
302 ordinary text), making such attacks more likely to succeed.
304 like %g, but generates a new temporary file name even if %uSUFFIX
307 substitutes the last file name generated with %uSUFFIX, generating a
308 new one if there is no such last file name. In the absence of any
309 %uSUFFIX, this is just like %gSUFFIX, except they don't share
310 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
311 would involve the generation of two distinct file names, one
312 for each `%g.s' and another for each `%U.s'. Previously, %U was
313 simply substituted with a file name chosen for the previous %u,
314 without regard to any appended suffix.
316 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
317 writable, and if save-temps is off; otherwise, substitute the name
318 of a temporary file, just like %u. This temporary file is not
319 meant for communication between processes, but rather as a junk
321 %d marks the argument containing or following the %d as a
322 temporary file name, so that that file will be deleted if CC exits
323 successfully. Unlike %g, this contributes no text to the argument.
324 %w marks the argument containing or following the %w as the
325 "output file" of this compilation. This puts the argument
326 into the sequence of arguments that %o will substitute later.
328 like %{...} but mark last argument supplied within
329 as a file to be deleted on failure.
330 %o substitutes the names of all the output files, with spaces
331 automatically placed around them. You should write spaces
332 around the %o as well or the results are undefined.
333 %o is for use in the specs for running the linker.
334 Input files whose names have no recognized suffix are not compiled
335 at all, but they are included among the output files, so they will
337 %O substitutes the suffix for object files. Note that this is
338 handled specially when it immediately follows %g, %u, or %U
339 (with or without a suffix argument) because of the need for
340 those to form complete file names. The handling is such that
341 %O is treated exactly as if it had already been substituted,
342 except that %g, %u, and %U do not currently support additional
343 SUFFIX characters following %O as they would following, for
345 %p substitutes the standard macro predefinitions for the
346 current target machine. Use this when running cpp.
347 %P like %p, but puts `__' before and after the name of each macro.
348 (Except macros that already have __.)
350 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
351 %s current argument is the name of a library or startup file of some sort.
352 Search for that file in a standard list of directories
353 and substitute the full name found.
354 %eSTR Print STR as an error message. STR is terminated by a newline.
355 Use this when inconsistent options are detected.
356 %x{OPTION} Accumulate an option for %X.
357 %X Output the accumulated linker options specified by compilations.
358 %Y Output the accumulated assembler options specified by compilations.
359 %Z Output the accumulated preprocessor options specified by compilations.
360 %v1 Substitute the major version number of GCC.
361 (For version 2.5.3, this is 2.)
362 %v2 Substitute the minor version number of GCC.
363 (For version 2.5.3, this is 5.)
364 %v3 Substitute the patch level number of GCC.
365 (For version 2.5.3, this is 3.)
366 %a process ASM_SPEC as a spec.
367 This allows config.h to specify part of the spec for running as.
368 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
369 used here. This can be used to run a post-processor after the
370 assembler has done its job.
371 %D Dump out a -L option for each directory in startfile_prefixes.
372 If multilib_dir is set, extra entries are generated with it affixed.
373 %l process LINK_SPEC as a spec.
374 %L process LIB_SPEC as a spec.
375 %G process LIBGCC_SPEC as a spec.
376 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
377 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
378 %c process SIGNED_CHAR_SPEC as a spec.
379 %C process CPP_SPEC as a spec. A capital C is actually used here.
380 %1 process CC1_SPEC as a spec.
381 %2 process CC1PLUS_SPEC as a spec.
382 %| output "-" if the input for the current command is coming from a pipe.
383 %* substitute the variable part of a matched option. (See below.)
384 Note that each comma in the substituted string is replaced by
386 %{S} substitutes the -S switch, if that switch was given to CC.
387 If that switch was not specified, this substitutes nothing.
388 Here S is a metasyntactic variable.
389 %{S*} substitutes all the switches specified to CC whose names start
390 with -S. This is used for -o, -D, -I, etc; switches that take
391 arguments. CC considers `-o foo' as being one switch whose
392 name starts with `o'. %{o*} would substitute this text,
393 including the space; thus, two arguments would be generated.
394 %{^S*} likewise, but don't put a blank between a switch and any args.
395 %{S*:X} substitutes X if one or more switches whose names start with -S are
396 specified to CC. Note that the tail part of the -S option
397 (i.e. the part matched by the `*') will be substituted for each
398 occurrence of %* within X.
399 %{<S} remove all occurences of -S from the command line.
400 Note - this option is position dependent. % commands in the
401 spec string before this option will see -S, % commands in the
402 spec string after this option will not.
403 %{S:X} substitutes X, but only if the -S switch was given to CC.
404 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
405 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
406 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
407 %{.S:X} substitutes X, but only if processing a file with suffix S.
408 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
409 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
410 combined with ! and . as above binding stronger than the OR.
411 %(Spec) processes a specification defined in a specs file as *Spec:
412 %[Spec] as above, but put __ around -D arguments
414 The conditional text X in a %{S:X} or %{!S:X} construct may contain
415 other nested % constructs or spaces, or even newlines. They are
416 processed as usual, as described above.
418 The -O, -f, -m, and -W switches are handled specifically in these
419 constructs. If another value of -O or the negated form of a -f, -m, or
420 -W switch is found later in the command line, the earlier switch
421 value is ignored, except with {S*} where S is just one letter; this
422 passes all matching options.
424 The character | at the beginning of the predicate text is used to indicate
425 that a command should be piped to the following command, but only if -pipe
428 Note that it is built into CC which switches take arguments and which
429 do not. You might think it would be useful to generalize this to
430 allow each compiler's spec to say which switches take arguments. But
431 this cannot be done in a consistent fashion. CC cannot even decide
432 which input files have been specified without knowing which switches
433 take arguments, and it must know which input files to compile in order
434 to tell which compilers to run.
436 CC also knows implicitly that arguments starting in `-l' are to be
437 treated as compiler output files, and passed to the linker in their
438 proper position among the other output files. */
440 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
442 /* config.h can define ASM_SPEC to provide extra args to the assembler
443 or extra switch-translations. */
448 /* config.h can define ASM_FINAL_SPEC to run a post processor after
449 the assembler has run. */
450 #ifndef ASM_FINAL_SPEC
451 #define ASM_FINAL_SPEC ""
454 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
455 or extra switch-translations. */
460 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
461 or extra switch-translations. */
466 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
467 or extra switch-translations. */
469 #define CC1PLUS_SPEC ""
472 /* config.h can define LINK_SPEC to provide extra args to the linker
473 or extra switch-translations. */
478 /* config.h can define LIB_SPEC to override the default libraries. */
480 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
483 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
486 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
487 /* Have gcc do the search for libgcc.a. */
488 #define LIBGCC_SPEC "libgcc.a%s"
490 #define LIBGCC_SPEC "-lgcc"
494 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
495 #ifndef STARTFILE_SPEC
496 #define STARTFILE_SPEC \
497 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
500 /* config.h can define SWITCHES_NEED_SPACES to control which options
501 require spaces between the option and the argument. */
502 #ifndef SWITCHES_NEED_SPACES
503 #define SWITCHES_NEED_SPACES ""
506 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
508 #define ENDFILE_SPEC ""
511 /* This spec is used for telling cpp whether char is signed or not. */
512 #ifndef SIGNED_CHAR_SPEC
513 /* Use #if rather than ?:
514 because MIPS C compiler rejects like ?: in initializers. */
515 #if DEFAULT_SIGNED_CHAR
516 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
518 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
523 #define LINKER_NAME "collect2"
526 /* Here is the spec for running the linker, after compiling all files. */
528 /* -u* was put back because both BSD and SysV seem to support it. */
529 /* %{static:} simply prevents an error message if the target machine
530 doesn't handle -static. */
531 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
532 scripts which exist in user specified directories, or in standard
534 #ifndef LINK_COMMAND_SPEC
535 #define LINK_COMMAND_SPEC "\
536 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
537 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
538 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
539 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
540 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
543 #ifndef LINK_LIBGCC_SPEC
544 # ifdef LINK_LIBGCC_SPECIAL
545 /* Don't generate -L options for startfile prefix list. */
546 # define LINK_LIBGCC_SPEC ""
548 /* Do generate them. */
549 # define LINK_LIBGCC_SPEC "%D"
553 static const char *cpp_spec = CPP_SPEC;
554 static const char *cpp_predefines = CPP_PREDEFINES;
555 static const char *cc1_spec = CC1_SPEC;
556 static const char *cc1plus_spec = CC1PLUS_SPEC;
557 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
558 static const char *asm_spec = ASM_SPEC;
559 static const char *asm_final_spec = ASM_FINAL_SPEC;
560 static const char *link_spec = LINK_SPEC;
561 static const char *lib_spec = LIB_SPEC;
562 static const char *libgcc_spec = LIBGCC_SPEC;
563 static const char *endfile_spec = ENDFILE_SPEC;
564 static const char *startfile_spec = STARTFILE_SPEC;
565 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
566 static const char *linker_name_spec = LINKER_NAME;
567 static const char *link_command_spec = LINK_COMMAND_SPEC;
568 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
570 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
571 There should be no need to override these in target dependent files,
572 but we need to copy them to the specs file so that newer versions
573 of the GCC driver can correctly drive older tool chains with the
574 appropriate -B options. */
576 static const char *trad_capable_cpp =
577 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
579 static const char *cpp_options =
580 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
581 %{std*} %{nostdinc*}\
582 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
583 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
584 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
585 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
586 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
587 %{ffast-math:-D__FAST_MATH__}\
588 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
589 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
590 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
591 %{fshow-column} %{fno-show-column}\
592 %{fleading-underscore} %{fno-leading-underscore}\
594 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{U*} %{D*} %{i*} %Z %i\
595 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
597 /* NB: This is shared amongst all front-ends. */
598 static const char *cc1_options =
599 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
600 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
601 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
602 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
603 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
604 %{--target-help:--target-help}\
605 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
606 %{fsyntax-only:-o %j}";
608 static const char *asm_options =
609 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
611 static const char *invoke_as =
612 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
614 /* Some compilers have limits on line lengths, and the multilib_select
615 and/or multilib_matches strings can be very long, so we build them at
617 static struct obstack multilib_obstack;
618 static const char *multilib_select;
619 static const char *multilib_matches;
620 static const char *multilib_defaults;
621 static const char *multilib_exclusions;
622 #include "multilib.h"
624 /* Check whether a particular argument is a default argument. */
626 #ifndef MULTILIB_DEFAULTS
627 #define MULTILIB_DEFAULTS { "" }
630 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
634 struct user_specs *next;
635 const char *filename;
638 static struct user_specs *user_specs_head, *user_specs_tail;
640 /* This defines which switch letters take arguments. */
642 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
643 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
644 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
645 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
646 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
647 || (CHAR) == 'B' || (CHAR) == 'b')
649 #ifndef SWITCH_TAKES_ARG
650 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
653 /* This defines which multi-letter switches take arguments. */
655 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
656 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
657 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
658 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
659 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
660 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
661 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
662 || !strcmp (STR, "MF") || !strcmp (STR, "MT"))
664 #ifndef WORD_SWITCH_TAKES_ARG
665 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
668 #ifdef HAVE_EXECUTABLE_SUFFIX
669 /* This defines which switches stop a full compilation. */
670 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
671 ((CHAR) == 'c' || (CHAR) == 'S')
673 #ifndef SWITCH_CURTAILS_COMPILATION
674 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
675 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
679 /* Record the mapping from file suffixes for compilation specs. */
683 const char *suffix; /* Use this compiler for input files
684 whose names end in this suffix. */
686 const char *spec; /* To use this compiler, run this spec. */
689 /* Pointer to a vector of `struct compiler' that gives the spec for
690 compiling a file, based on its suffix.
691 A file that does not end in any of these suffixes will be passed
692 unchanged to the loader and nothing else will be done to it.
694 An entry containing two 0s is used to terminate the vector.
696 If multiple entries match a file, the last matching one is used. */
698 static struct compiler *compilers;
700 /* Number of entries in `compilers', not counting the null terminator. */
702 static int n_compilers;
704 /* The default list of file name suffixes and their compilation specs. */
706 static struct compiler default_compilers[] =
708 /* Add lists of suffixes of known languages here. If those languages
709 were not present when we built the driver, we will hit these copies
710 and be given a more meaningful error than "file not used since
711 linking is not done". */
712 {".m", "#Objective-C"},
713 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
714 {".c++", "#C++"}, {".C", "#C++"},
715 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
716 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
717 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
718 {".p", "#Pascal"}, {".pas", "#Pascal"},
719 {".ch", "#Chill"}, {".chi", "#Chill"},
720 {".java", "#Java"}, {".class", "#Java"},
721 {".zip", "#Java"}, {".jar", "#Java"},
722 /* Next come the entries for C. */
726 /* cc1 has an integrated ISO C preprocessor. We should invoke the
727 external preprocessor if -save-temps or -traditional is given. */
728 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
730 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
731 %(cpp_options) %b.i \n\
732 cc1 -fpreprocessed %b.i %(cc1_options)}\
734 %{traditional|ftraditional|traditional-cpp:\
735 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
736 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
737 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
738 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
739 %{!fsyntax-only:%(invoke_as)}}}}"
740 #else /* ! USE_CPPLIB */
741 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
742 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
743 cc1 %{!pipe:%g.i} %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"
744 #endif /* ! USE_CPPLIB */
747 "%{!E:%e-E required when input is from standard input}\
748 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
751 "%{!E:%eCompilation of header file requested} \
752 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
753 {".i", "@cpp-output"},
755 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
756 {".s", "@assembler"},
758 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
759 {".S", "@assembler-with-cpp"},
760 {"@assembler-with-cpp",
761 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
762 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
764 /* Mark end of table */
768 /* Number of elements in default_compilers, not counting the terminator. */
770 static int n_default_compilers
771 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
773 /* A vector of options to give to the linker.
774 These options are accumulated by %x,
775 and substituted into the linker command with %X. */
776 static int n_linker_options;
777 static char **linker_options;
779 /* A vector of options to give to the assembler.
780 These options are accumulated by -Wa,
781 and substituted into the assembler command with %Y. */
782 static int n_assembler_options;
783 static char **assembler_options;
785 /* A vector of options to give to the preprocessor.
786 These options are accumulated by -Wp,
787 and substituted into the preprocessor command with %Z. */
788 static int n_preprocessor_options;
789 static char **preprocessor_options;
791 /* Define how to map long options into short ones. */
793 /* This structure describes one mapping. */
796 /* The long option's name. */
798 /* The equivalent short option. */
799 const char *equivalent;
800 /* Argument info. A string of flag chars; NULL equals no options.
801 a => argument required.
802 o => argument optional.
803 j => join argument to equivalent, making one word.
804 * => require other text after NAME as an argument. */
805 const char *arg_info;
808 /* This is the table of mappings. Mappings are tried sequentially
809 for each option encountered; the first one that matches, wins. */
811 struct option_map option_map[] =
813 {"--all-warnings", "-Wall", 0},
814 {"--ansi", "-ansi", 0},
815 {"--assemble", "-S", 0},
816 {"--assert", "-A", "a"},
817 {"--classpath", "-fclasspath=", "aj"},
818 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
819 {"--comments", "-C", 0},
820 {"--compile", "-c", 0},
821 {"--debug", "-g", "oj"},
822 {"--define-macro", "-D", "aj"},
823 {"--dependencies", "-M", 0},
824 {"--dump", "-d", "a"},
825 {"--dumpbase", "-dumpbase", "a"},
826 {"--entry", "-e", 0},
827 {"--extra-warnings", "-W", 0},
828 {"--for-assembler", "-Wa", "a"},
829 {"--for-linker", "-Xlinker", "a"},
830 {"--force-link", "-u", "a"},
831 {"--imacros", "-imacros", "a"},
832 {"--include", "-include", "a"},
833 {"--include-barrier", "-I-", 0},
834 {"--include-directory", "-I", "aj"},
835 {"--include-directory-after", "-idirafter", "a"},
836 {"--include-prefix", "-iprefix", "a"},
837 {"--include-with-prefix", "-iwithprefix", "a"},
838 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
839 {"--include-with-prefix-after", "-iwithprefix", "a"},
840 {"--language", "-x", "a"},
841 {"--library-directory", "-L", "a"},
842 {"--machine", "-m", "aj"},
843 {"--machine-", "-m", "*j"},
844 {"--no-line-commands", "-P", 0},
845 {"--no-precompiled-includes", "-noprecomp", 0},
846 {"--no-standard-includes", "-nostdinc", 0},
847 {"--no-standard-libraries", "-nostdlib", 0},
848 {"--no-warnings", "-w", 0},
849 {"--optimize", "-O", "oj"},
850 {"--output", "-o", "a"},
851 {"--output-class-directory", "-foutput-class-dir=", "ja"},
852 {"--pedantic", "-pedantic", 0},
853 {"--pedantic-errors", "-pedantic-errors", 0},
854 {"--pipe", "-pipe", 0},
855 {"--prefix", "-B", "a"},
856 {"--preprocess", "-E", 0},
857 {"--print-search-dirs", "-print-search-dirs", 0},
858 {"--print-file-name", "-print-file-name=", "aj"},
859 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
860 {"--print-missing-file-dependencies", "-MG", 0},
861 {"--print-multi-lib", "-print-multi-lib", 0},
862 {"--print-multi-directory", "-print-multi-directory", 0},
863 {"--print-prog-name", "-print-prog-name=", "aj"},
864 {"--profile", "-p", 0},
865 {"--profile-blocks", "-a", 0},
866 {"--quiet", "-q", 0},
867 {"--save-temps", "-save-temps", 0},
868 {"--shared", "-shared", 0},
869 {"--silent", "-q", 0},
870 {"--specs", "-specs=", "aj"},
871 {"--static", "-static", 0},
872 {"--std", "-std=", "aj"},
873 {"--symbolic", "-symbolic", 0},
874 {"--target", "-b", "a"},
875 {"--time", "-time", 0},
876 {"--trace-includes", "-H", 0},
877 {"--traditional", "-traditional", 0},
878 {"--traditional-cpp", "-traditional-cpp", 0},
879 {"--trigraphs", "-trigraphs", 0},
880 {"--undefine-macro", "-U", "aj"},
881 {"--use-version", "-V", "a"},
882 {"--user-dependencies", "-MM", 0},
883 {"--verbose", "-v", 0},
884 {"--version", "-dumpversion", 0},
885 {"--warn-", "-W", "*j"},
886 {"--write-dependencies", "-MD", 0},
887 {"--write-user-dependencies", "-MMD", 0},
891 /* Translate the options described by *ARGCP and *ARGVP.
892 Make a new vector and store it back in *ARGVP,
893 and store its length in *ARGVC. */
896 translate_options (argcp, argvp)
898 const char *const **argvp;
902 const char *const *argv = *argvp;
904 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
908 newv[newindex++] = argv[i++];
912 /* Translate -- options. */
913 if (argv[i][0] == '-' && argv[i][1] == '-')
916 /* Find a mapping that applies to this option. */
917 for (j = 0; j < ARRAY_SIZE (option_map); j++)
919 size_t optlen = strlen (option_map[j].name);
920 size_t arglen = strlen (argv[i]);
921 size_t complen = arglen > optlen ? optlen : arglen;
922 const char *arginfo = option_map[j].arg_info;
927 if (!strncmp (argv[i], option_map[j].name, complen))
934 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
935 if (strlen (option_map[k].name) >= arglen
936 && !strncmp (argv[i], option_map[k].name, arglen))
938 error ("Ambiguous abbreviation %s", argv[i]);
942 if (k != ARRAY_SIZE (option_map))
948 /* If the option has an argument, accept that. */
949 if (argv[i][optlen] == '=')
950 arg = argv[i] + optlen + 1;
952 /* If this mapping requires extra text at end of name,
953 accept that as "argument". */
954 else if (strchr (arginfo, '*') != 0)
955 arg = argv[i] + optlen;
957 /* Otherwise, extra text at end means mismatch.
958 Try other mappings. */
963 else if (strchr (arginfo, '*') != 0)
965 error ("Incomplete `%s' option", option_map[j].name);
969 /* Handle arguments. */
970 if (strchr (arginfo, 'a') != 0)
976 error ("Missing argument to `%s' option",
984 else if (strchr (arginfo, '*') != 0)
986 else if (strchr (arginfo, 'o') == 0)
989 error ("Extraneous argument to `%s' option",
994 /* Store the translation as one argv elt or as two. */
995 if (arg != 0 && strchr (arginfo, 'j') != 0)
996 newv[newindex++] = concat (option_map[j].equivalent, arg,
1000 newv[newindex++] = option_map[j].equivalent;
1001 newv[newindex++] = arg;
1004 newv[newindex++] = option_map[j].equivalent;
1012 /* Handle old-fashioned options--just copy them through,
1013 with their arguments. */
1014 else if (argv[i][0] == '-')
1016 const char *p = argv[i] + 1;
1020 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1021 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1022 else if (WORD_SWITCH_TAKES_ARG (p))
1023 nskip += WORD_SWITCH_TAKES_ARG (p);
1024 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1027 else if (! strcmp (p, "Xlinker"))
1030 /* Watch out for an option at the end of the command line that
1031 is missing arguments, and avoid skipping past the end of the
1033 if (nskip + i > argc)
1038 newv[newindex++] = argv[i++];
1043 /* Ordinary operands, or +e options. */
1044 newv[newindex++] = argv[i++];
1059 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1060 be considered whitespace. */
1061 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1063 else if (*p == '\n' || *p == ' ' || *p == '\t')
1077 /* Structures to keep track of prefixes to try when looking for files. */
1081 char *prefix; /* String to prepend to the path. */
1082 struct prefix_list *next; /* Next in linked list. */
1083 int require_machine_suffix; /* Don't use without machine_suffix. */
1084 /* 2 means try both machine_suffix and just_machine_suffix. */
1085 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1086 int priority; /* Sort key - priority within list */
1091 struct prefix_list *plist; /* List of prefixes to try */
1092 int max_len; /* Max length of a prefix in PLIST */
1093 const char *name; /* Name of this list (used in config stuff) */
1096 /* List of prefixes to try when looking for executables. */
1098 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1100 /* List of prefixes to try when looking for startup (crt0) files. */
1102 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1104 /* List of prefixes to try when looking for include files. */
1106 static struct path_prefix include_prefixes = { 0, 0, "include" };
1108 /* Suffix to attach to directories searched for commands.
1109 This looks like `MACHINE/VERSION/'. */
1111 static const char *machine_suffix = 0;
1113 /* Suffix to attach to directories searched for commands.
1114 This is just `MACHINE/'. */
1116 static const char *just_machine_suffix = 0;
1118 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1120 static const char *gcc_exec_prefix;
1122 /* Default prefixes to attach to command names. */
1124 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1125 #undef MD_EXEC_PREFIX
1126 #undef MD_STARTFILE_PREFIX
1127 #undef MD_STARTFILE_PREFIX_1
1130 /* If no prefixes defined, use the null string, which will disable them. */
1131 #ifndef MD_EXEC_PREFIX
1132 #define MD_EXEC_PREFIX ""
1134 #ifndef MD_STARTFILE_PREFIX
1135 #define MD_STARTFILE_PREFIX ""
1137 #ifndef MD_STARTFILE_PREFIX_1
1138 #define MD_STARTFILE_PREFIX_1 ""
1141 /* Supply defaults for the standard prefixes. */
1143 #ifndef STANDARD_EXEC_PREFIX
1144 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1146 #ifndef STANDARD_STARTFILE_PREFIX
1147 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1149 #ifndef TOOLDIR_BASE_PREFIX
1150 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1152 #ifndef STANDARD_BINDIR_PREFIX
1153 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1156 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1157 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1158 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1160 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1161 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1162 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1163 static const char *standard_startfile_prefix_1 = "/lib/";
1164 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1166 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1167 static const char *tooldir_prefix;
1169 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1171 /* Subdirectory to use for locating libraries. Set by
1172 set_multilib_dir based on the compilation options. */
1174 static const char *multilib_dir;
1176 /* Structure to keep track of the specs that have been defined so far.
1177 These are accessed using %(specname) or %[specname] in a compiler
1182 /* The following 2 fields must be first */
1183 /* to allow EXTRA_SPECS to be initialized */
1184 const char *name; /* name of the spec. */
1185 const char *ptr; /* available ptr if no static pointer */
1187 /* The following fields are not initialized */
1188 /* by EXTRA_SPECS */
1189 const char **ptr_spec; /* pointer to the spec itself. */
1190 struct spec_list *next; /* Next spec in linked list. */
1191 int name_len; /* length of the name */
1192 int alloc_p; /* whether string was allocated */
1195 #define INIT_STATIC_SPEC(NAME,PTR) \
1196 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1198 /* List of statically defined specs. */
1199 static struct spec_list static_specs[] =
1201 INIT_STATIC_SPEC ("asm", &asm_spec),
1202 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1203 INIT_STATIC_SPEC ("asm_options", &asm_options),
1204 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1205 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1206 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1207 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1208 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1209 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1210 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1211 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1212 INIT_STATIC_SPEC ("link", &link_spec),
1213 INIT_STATIC_SPEC ("lib", &lib_spec),
1214 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1215 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1216 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1217 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1218 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1219 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1220 INIT_STATIC_SPEC ("version", &compiler_version),
1221 INIT_STATIC_SPEC ("multilib", &multilib_select),
1222 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1223 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1224 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1225 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1226 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1227 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1228 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1229 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1230 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1233 #ifdef EXTRA_SPECS /* additional specs needed */
1234 /* Structure to keep track of just the first two args of a spec_list.
1235 That is all that the EXTRA_SPECS macro gives us. */
1242 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1243 static struct spec_list *extra_specs = (struct spec_list *) 0;
1246 /* List of dynamically allocates specs that have been defined so far. */
1248 static struct spec_list *specs = (struct spec_list *) 0;
1250 /* Initialize the specs lookup routines. */
1255 struct spec_list *next = (struct spec_list *) 0;
1256 struct spec_list *sl = (struct spec_list *) 0;
1260 return; /* Already initialized. */
1263 notice ("Using builtin specs.\n");
1266 extra_specs = (struct spec_list *)
1267 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1269 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1271 sl = &extra_specs[i];
1272 sl->name = extra_specs_1[i].name;
1273 sl->ptr = extra_specs_1[i].ptr;
1275 sl->name_len = strlen (sl->name);
1276 sl->ptr_spec = &sl->ptr;
1281 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1283 sl = &static_specs[i];
1291 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1292 removed; If the spec starts with a + then SPEC is added to the end of the
1296 set_spec (name, spec)
1300 struct spec_list *sl;
1301 const char *old_spec;
1302 int name_len = strlen (name);
1305 /* If this is the first call, initialize the statically allocated specs. */
1308 struct spec_list *next = (struct spec_list *) 0;
1309 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1311 sl = &static_specs[i];
1318 /* See if the spec already exists. */
1319 for (sl = specs; sl; sl = sl->next)
1320 if (name_len == sl->name_len && !strcmp (sl->name, name))
1325 /* Not found - make it. */
1326 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1327 sl->name = xstrdup (name);
1328 sl->name_len = name_len;
1329 sl->ptr_spec = &sl->ptr;
1331 *(sl->ptr_spec) = "";
1336 old_spec = *(sl->ptr_spec);
1337 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1338 ? concat (old_spec, spec + 1, NULL_PTR)
1343 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1346 /* Free the old spec. */
1347 if (old_spec && sl->alloc_p)
1348 free ((PTR) old_spec);
1353 /* Accumulate a command (program name and args), and run it. */
1355 /* Vector of pointers to arguments in the current line of specifications. */
1357 static const char **argbuf;
1359 /* Number of elements allocated in argbuf. */
1361 static int argbuf_length;
1363 /* Number of elements in argbuf currently in use (containing args). */
1365 static int argbuf_index;
1367 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1368 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1371 static struct temp_name {
1372 const char *suffix; /* suffix associated with the code. */
1373 int length; /* strlen (suffix). */
1374 int unique; /* Indicates whether %g or %u/%U was used. */
1375 const char *filename; /* associated filename. */
1376 int filename_length; /* strlen (filename). */
1377 struct temp_name *next;
1380 /* Number of commands executed so far. */
1382 static int execution_count;
1384 /* Number of commands that exited with a signal. */
1386 static int signal_count;
1388 /* Name with which this program was invoked. */
1390 static const char *programname;
1392 /* Clear out the vector of arguments (after a command is executed). */
1400 /* Add one argument to the vector at the end.
1401 This is done when a space is seen or at the end of the line.
1402 If DELETE_ALWAYS is nonzero, the arg is a filename
1403 and the file should be deleted eventually.
1404 If DELETE_FAILURE is nonzero, the arg is a filename
1405 and the file should be deleted if this compilation fails. */
1408 store_arg (arg, delete_always, delete_failure)
1410 int delete_always, delete_failure;
1412 if (argbuf_index + 1 == argbuf_length)
1414 = (const char **) xrealloc (argbuf,
1415 (argbuf_length *= 2) * sizeof (const char *));
1417 argbuf[argbuf_index++] = arg;
1418 argbuf[argbuf_index] = 0;
1420 if (delete_always || delete_failure)
1421 record_temp_file (arg, delete_always, delete_failure);
1424 /* Load specs from a file name named FILENAME, replacing occurances of
1425 various different types of line-endings, \r\n, \n\r and just \r, with
1429 load_specs (filename)
1430 const char *filename;
1434 struct stat statbuf;
1441 notice ("Reading specs from %s\n", filename);
1443 /* Open and stat the file. */
1444 desc = open (filename, O_RDONLY, 0);
1446 pfatal_with_name (filename);
1447 if (stat (filename, &statbuf) < 0)
1448 pfatal_with_name (filename);
1450 /* Read contents of file into BUFFER. */
1451 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1452 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1454 pfatal_with_name (filename);
1455 buffer[readlen] = 0;
1458 specs = xmalloc (readlen + 1);
1460 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1466 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1468 else if (*(buffer_p + 1) == '\n') /* \r\n */
1482 /* Read compilation specs from a file named FILENAME,
1483 replacing the default ones.
1485 A suffix which starts with `*' is a definition for
1486 one of the machine-specific sub-specs. The "suffix" should be
1487 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1488 The corresponding spec is stored in asm_spec, etc.,
1489 rather than in the `compilers' vector.
1491 Anything invalid in the file is a fatal error. */
1494 read_specs (filename, main_p)
1495 const char *filename;
1501 buffer = load_specs (filename);
1503 /* Scan BUFFER for specs, putting them in the vector. */
1509 char *in, *out, *p1, *p2, *p3;
1511 /* Advance P in BUFFER to the next nonblank nocomment line. */
1512 p = skip_whitespace (p);
1516 /* Is this a special command that starts with '%'? */
1517 /* Don't allow this for the main specs file, since it would
1518 encourage people to overwrite it. */
1519 if (*p == '%' && !main_p)
1522 while (*p && *p != '\n')
1528 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1529 && (p1[sizeof "%include" - 1] == ' '
1530 || p1[sizeof "%include" - 1] == '\t'))
1534 p1 += sizeof ("%include");
1535 while (*p1 == ' ' || *p1 == '\t')
1538 if (*p1++ != '<' || p[-2] != '>')
1539 fatal ("specs %%include syntax malformed after %ld characters",
1540 (long) (p1 - buffer + 1));
1543 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1544 read_specs (new_filename ? new_filename : p1, FALSE);
1547 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1548 && (p1[sizeof "%include_noerr" - 1] == ' '
1549 || p1[sizeof "%include_noerr" - 1] == '\t'))
1553 p1 += sizeof "%include_noerr";
1554 while (*p1 == ' ' || *p1 == '\t')
1557 if (*p1++ != '<' || p[-2] != '>')
1558 fatal ("specs %%include syntax malformed after %ld characters",
1559 (long) (p1 - buffer + 1));
1562 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1564 read_specs (new_filename, FALSE);
1565 else if (verbose_flag)
1566 notice ("Could not find specs file %s\n", p1);
1569 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1570 && (p1[sizeof "%rename" - 1] == ' '
1571 || p1[sizeof "%rename" - 1] == '\t'))
1574 struct spec_list *sl;
1576 /* Get original name */
1577 p1 += sizeof "%rename";
1578 while (*p1 == ' ' || *p1 == '\t')
1581 if (! ISALPHA ((unsigned char) *p1))
1582 fatal ("specs %%rename syntax malformed after %ld characters",
1583 (long) (p1 - buffer));
1586 while (*p2 && !ISSPACE ((unsigned char) *p2))
1589 if (*p2 != ' ' && *p2 != '\t')
1590 fatal ("specs %%rename syntax malformed after %ld characters",
1591 (long) (p2 - buffer));
1595 while (*p2 == ' ' || *p2 == '\t')
1598 if (! ISALPHA ((unsigned char) *p2))
1599 fatal ("specs %%rename syntax malformed after %ld characters",
1600 (long) (p2 - buffer));
1602 /* Get new spec name. */
1604 while (*p3 && !ISSPACE ((unsigned char) *p3))
1608 fatal ("specs %%rename syntax malformed after %ld characters",
1609 (long) (p3 - buffer));
1612 for (sl = specs; sl; sl = sl->next)
1613 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1617 fatal ("specs %s spec was not found to be renamed", p1);
1619 if (strcmp (p1, p2) == 0)
1624 notice ("rename spec %s to %s\n", p1, p2);
1626 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1630 set_spec (p2, *(sl->ptr_spec));
1632 free ((PTR) *(sl->ptr_spec));
1634 *(sl->ptr_spec) = "";
1639 fatal ("specs unknown %% command after %ld characters",
1640 (long) (p1 - buffer));
1643 /* Find the colon that should end the suffix. */
1645 while (*p1 && *p1 != ':' && *p1 != '\n')
1648 /* The colon shouldn't be missing. */
1650 fatal ("specs file malformed after %ld characters",
1651 (long) (p1 - buffer));
1653 /* Skip back over trailing whitespace. */
1655 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1658 /* Copy the suffix to a string. */
1659 suffix = save_string (p, p2 - p);
1660 /* Find the next line. */
1661 p = skip_whitespace (p1 + 1);
1663 fatal ("specs file malformed after %ld characters",
1664 (long) (p - buffer));
1667 /* Find next blank line or end of string. */
1668 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1671 /* Specs end at the blank line and do not include the newline. */
1672 spec = save_string (p, p1 - p);
1675 /* Delete backslash-newline sequences from the spec. */
1680 if (in[0] == '\\' && in[1] == '\n')
1682 else if (in[0] == '#')
1683 while (*in && *in != '\n')
1691 if (suffix[0] == '*')
1693 if (! strcmp (suffix, "*link_command"))
1694 link_command_spec = spec;
1696 set_spec (suffix + 1, spec);
1700 /* Add this pair to the vector. */
1702 = ((struct compiler *)
1703 xrealloc (compilers,
1704 (n_compilers + 2) * sizeof (struct compiler)));
1706 compilers[n_compilers].suffix = suffix;
1707 compilers[n_compilers].spec = spec;
1709 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1713 link_command_spec = spec;
1716 if (link_command_spec == 0)
1717 fatal ("spec file has no spec for linking");
1720 /* Record the names of temporary files we tell compilers to write,
1721 and delete them at the end of the run. */
1723 /* This is the common prefix we use to make temp file names.
1724 It is chosen once for each run of this program.
1725 It is substituted into a spec by %g or %j.
1726 Thus, all temp file names contain this prefix.
1727 In practice, all temp file names start with this prefix.
1729 This prefix comes from the envvar TMPDIR if it is defined;
1730 otherwise, from the P_tmpdir macro if that is defined;
1731 otherwise, in /usr/tmp or /tmp;
1732 or finally the current directory if all else fails. */
1734 static const char *temp_filename;
1736 /* Length of the prefix. */
1738 static int temp_filename_length;
1740 /* Define the list of temporary files to delete. */
1745 struct temp_file *next;
1748 /* Queue of files to delete on success or failure of compilation. */
1749 static struct temp_file *always_delete_queue;
1750 /* Queue of files to delete on failure of compilation. */
1751 static struct temp_file *failure_delete_queue;
1753 /* Record FILENAME as a file to be deleted automatically.
1754 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1755 otherwise delete it in any case.
1756 FAIL_DELETE nonzero means delete it if a compilation step fails;
1757 otherwise delete it in any case. */
1760 record_temp_file (filename, always_delete, fail_delete)
1761 const char *filename;
1765 register char *const name = xstrdup (filename);
1769 register struct temp_file *temp;
1770 for (temp = always_delete_queue; temp; temp = temp->next)
1771 if (! strcmp (name, temp->name))
1774 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1775 temp->next = always_delete_queue;
1777 always_delete_queue = temp;
1784 register struct temp_file *temp;
1785 for (temp = failure_delete_queue; temp; temp = temp->next)
1786 if (! strcmp (name, temp->name))
1789 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1790 temp->next = failure_delete_queue;
1792 failure_delete_queue = temp;
1798 /* Delete all the temporary files whose names we previously recorded. */
1801 delete_if_ordinary (name)
1808 printf ("Delete %s? (y or n) ", name);
1812 while ((c = getchar ()) != '\n' && c != EOF)
1815 if (i == 'y' || i == 'Y')
1817 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1818 if (unlink (name) < 0)
1820 perror_with_name (name);
1824 delete_temp_files ()
1826 register struct temp_file *temp;
1828 for (temp = always_delete_queue; temp; temp = temp->next)
1829 delete_if_ordinary (temp->name);
1830 always_delete_queue = 0;
1833 /* Delete all the files to be deleted on error. */
1836 delete_failure_queue ()
1838 register struct temp_file *temp;
1840 for (temp = failure_delete_queue; temp; temp = temp->next)
1841 delete_if_ordinary (temp->name);
1845 clear_failure_queue ()
1847 failure_delete_queue = 0;
1850 /* Routine to add variables to the environment. We do this to pass
1851 the pathname of the gcc driver, and the directories search to the
1852 collect2 program, which is being run as ld. This way, we can be
1853 sure of executing the right compiler when collect2 wants to build
1854 constructors and destructors. Since the environment variables we
1855 use come from an obstack, we don't have to worry about allocating
1864 #ifndef VMS /* nor about VMS */
1866 extern char **environ;
1867 char **old_environ = environ;
1871 int str_len = strlen (str);
1875 while ((ch = *p++) != '\0' && ch != '=')
1881 /* Search for replacing an existing environment variable, and
1882 count the number of total environment variables. */
1883 for (envp = old_environ; *envp; envp++)
1886 if (!strncmp (str, *envp, name_len))
1893 /* Add a new environment variable */
1894 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
1896 memcpy ((char *) (environ + 1), (char *) old_environ,
1897 sizeof (char *) * (num_envs + 1));
1902 #endif /* HAVE_PUTENV */
1904 /* Build a list of search directories from PATHS.
1905 PREFIX is a string to prepend to the list.
1906 If CHECK_DIR_P is non-zero we ensure the directory exists.
1907 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1908 It is also used by the --print-search-dirs flag. */
1911 build_search_list (paths, prefix, check_dir_p)
1912 struct path_prefix *paths;
1916 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1918 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1919 int first_time = TRUE;
1920 struct prefix_list *pprefix;
1922 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1923 obstack_1grow (&collect_obstack, '=');
1925 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1927 int len = strlen (pprefix->prefix);
1931 || is_directory (pprefix->prefix, machine_suffix, 0)))
1934 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1937 obstack_grow (&collect_obstack, pprefix->prefix, len);
1938 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1941 if (just_machine_suffix
1942 && pprefix->require_machine_suffix == 2
1944 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1947 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1950 obstack_grow (&collect_obstack, pprefix->prefix, len);
1951 obstack_grow (&collect_obstack, just_machine_suffix,
1955 if (! pprefix->require_machine_suffix)
1958 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1961 obstack_grow (&collect_obstack, pprefix->prefix, len);
1965 obstack_1grow (&collect_obstack, '\0');
1966 return obstack_finish (&collect_obstack);
1969 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1973 putenv_from_prefixes (paths, env_var)
1974 struct path_prefix *paths;
1975 const char *env_var;
1977 putenv (build_search_list (paths, env_var, 1));
1982 /* FIXME: the location independence code for VMS is hairier than this,
1983 and hasn't been written. */
1985 /* Split a filename into component directories. */
1988 split_directories (name, ptr_num_dirs)
1997 /* Count the number of directories. Special case MSDOS disk names as part
1998 of the initial directory. */
2000 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2001 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2006 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2008 while ((ch = *p++) != '\0')
2010 if (IS_DIR_SEPARATOR (ch))
2013 while (IS_DIR_SEPARATOR (*p))
2018 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2020 /* Now copy the directory parts. */
2023 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2024 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2026 dirs[num_dirs++] = save_string (p, 3);
2029 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2032 while ((ch = *p++) != '\0')
2034 if (IS_DIR_SEPARATOR (ch))
2036 while (IS_DIR_SEPARATOR (*p))
2039 dirs[num_dirs++] = save_string (q, p - q);
2045 dirs[num_dirs++] = save_string (q, p - 1 - q);
2047 dirs[num_dirs] = NULL_PTR;
2049 *ptr_num_dirs = num_dirs;
2054 /* Release storage held by split directories. */
2057 free_split_directories (dirs)
2062 while (dirs[i] != NULL_PTR)
2065 free ((char *) dirs);
2068 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2069 to PREFIX starting with the directory portion of PROGNAME and a relative
2070 pathname of the difference between BIN_PREFIX and PREFIX.
2072 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2073 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2074 function will return /red/green/blue/../omega.
2076 If no relative prefix can be found, return NULL. */
2079 make_relative_prefix (progname, bin_prefix, prefix)
2080 const char *progname;
2081 const char *bin_prefix;
2084 char **prog_dirs, **bin_dirs, **prefix_dirs;
2085 int prog_num, bin_num, prefix_num, std_loc_p;
2088 prog_dirs = split_directories (progname, &prog_num);
2089 bin_dirs = split_directories (bin_prefix, &bin_num);
2091 /* If there is no full pathname, try to find the program by checking in each
2092 of the directories specified in the PATH environment variable. */
2097 GET_ENV_PATH_LIST (temp, "PATH");
2100 char *startp, *endp;
2101 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2103 startp = endp = temp;
2106 if (*endp == PATH_SEPARATOR || *endp == 0)
2111 nstore[1] = DIR_SEPARATOR;
2116 strncpy (nstore, startp, endp - startp);
2117 if (! IS_DIR_SEPARATOR (endp[-1]))
2119 nstore[endp - startp] = DIR_SEPARATOR;
2120 nstore[endp - startp + 1] = 0;
2123 nstore[endp - startp] = 0;
2125 strcat (nstore, progname);
2126 if (! access (nstore, X_OK)
2127 #ifdef HAVE_EXECUTABLE_SUFFIX
2128 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2132 free_split_directories (prog_dirs);
2134 prog_dirs = split_directories (progname, &prog_num);
2140 endp = startp = endp + 1;
2148 /* Remove the program name from comparison of directory names. */
2151 /* Determine if the compiler is installed in the standard location, and if
2152 so, we don't need to specify relative directories. Also, if argv[0]
2153 doesn't contain any directory specifiers, there is not much we can do. */
2155 if (prog_num == bin_num)
2157 for (i = 0; i < bin_num; i++)
2159 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2163 if (prog_num <= 0 || i == bin_num)
2166 free_split_directories (prog_dirs);
2167 free_split_directories (bin_dirs);
2168 prog_dirs = bin_dirs = (char **) 0;
2173 prefix_dirs = split_directories (prefix, &prefix_num);
2175 /* Find how many directories are in common between bin_prefix & prefix. */
2176 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2177 for (common = 0; common < n; common++)
2179 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2183 /* If there are no common directories, there can be no relative prefix. */
2186 free_split_directories (prog_dirs);
2187 free_split_directories (bin_dirs);
2188 free_split_directories (prefix_dirs);
2192 /* Build up the pathnames in argv[0]. */
2193 for (i = 0; i < prog_num; i++)
2194 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2196 /* Now build up the ..'s. */
2197 for (i = common; i < n; i++)
2199 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2200 obstack_1grow (&obstack, DIR_SEPARATOR);
2203 /* Put in directories to move over to prefix. */
2204 for (i = common; i < prefix_num; i++)
2205 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2207 free_split_directories (prog_dirs);
2208 free_split_directories (bin_dirs);
2209 free_split_directories (prefix_dirs);
2211 obstack_1grow (&obstack, '\0');
2212 return obstack_finish (&obstack);
2216 /* Check whether NAME can be accessed in MODE. This is like access,
2217 except that it never considers directories to be executable. */
2220 access_check (name, mode)
2228 if (stat (name, &st) < 0
2229 || S_ISDIR (st.st_mode))
2233 return access (name, mode);
2236 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2237 access to check permissions.
2238 Return 0 if not found, otherwise return its name, allocated with malloc. */
2241 find_a_file (pprefix, name, mode)
2242 struct path_prefix *pprefix;
2247 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2248 struct prefix_list *pl;
2249 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2251 #ifdef DEFAULT_ASSEMBLER
2252 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2253 return xstrdup (DEFAULT_ASSEMBLER);
2256 #ifdef DEFAULT_LINKER
2257 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2258 return xstrdup (DEFAULT_LINKER);
2262 len += strlen (machine_suffix);
2264 temp = xmalloc (len);
2266 /* Determine the filename to execute (special case for absolute paths). */
2268 if (IS_DIR_SEPARATOR (*name)
2269 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2270 /* Check for disk name on MS-DOS-based systems. */
2271 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2275 if (access (name, mode) == 0)
2277 strcpy (temp, name);
2282 for (pl = pprefix->plist; pl; pl = pl->next)
2286 /* Some systems have a suffix for executable files.
2287 So try appending that first. */
2288 if (file_suffix[0] != 0)
2290 strcpy (temp, pl->prefix);
2291 strcat (temp, machine_suffix);
2292 strcat (temp, name);
2293 strcat (temp, file_suffix);
2294 if (access_check (temp, mode) == 0)
2296 if (pl->used_flag_ptr != 0)
2297 *pl->used_flag_ptr = 1;
2302 /* Now try just the name. */
2303 strcpy (temp, pl->prefix);
2304 strcat (temp, machine_suffix);
2305 strcat (temp, name);
2306 if (access_check (temp, mode) == 0)
2308 if (pl->used_flag_ptr != 0)
2309 *pl->used_flag_ptr = 1;
2314 /* Certain prefixes are tried with just the machine type,
2315 not the version. This is used for finding as, ld, etc. */
2316 if (just_machine_suffix && pl->require_machine_suffix == 2)
2318 /* Some systems have a suffix for executable files.
2319 So try appending that first. */
2320 if (file_suffix[0] != 0)
2322 strcpy (temp, pl->prefix);
2323 strcat (temp, just_machine_suffix);
2324 strcat (temp, name);
2325 strcat (temp, file_suffix);
2326 if (access_check (temp, mode) == 0)
2328 if (pl->used_flag_ptr != 0)
2329 *pl->used_flag_ptr = 1;
2334 strcpy (temp, pl->prefix);
2335 strcat (temp, just_machine_suffix);
2336 strcat (temp, name);
2337 if (access_check (temp, mode) == 0)
2339 if (pl->used_flag_ptr != 0)
2340 *pl->used_flag_ptr = 1;
2345 /* Certain prefixes can't be used without the machine suffix
2346 when the machine or version is explicitly specified. */
2347 if (! pl->require_machine_suffix)
2349 /* Some systems have a suffix for executable files.
2350 So try appending that first. */
2351 if (file_suffix[0] != 0)
2353 strcpy (temp, pl->prefix);
2354 strcat (temp, name);
2355 strcat (temp, file_suffix);
2356 if (access_check (temp, mode) == 0)
2358 if (pl->used_flag_ptr != 0)
2359 *pl->used_flag_ptr = 1;
2364 strcpy (temp, pl->prefix);
2365 strcat (temp, name);
2366 if (access_check (temp, mode) == 0)
2368 if (pl->used_flag_ptr != 0)
2369 *pl->used_flag_ptr = 1;
2379 /* Ranking of prefixes in the sort list. -B prefixes are put before
2382 enum path_prefix_priority
2384 PREFIX_PRIORITY_B_OPT,
2385 PREFIX_PRIORITY_LAST
2388 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2389 order according to PRIORITY. Within each PRIORITY, new entries are
2392 If WARN is nonzero, we will warn if no file is found
2393 through this prefix. WARN should point to an int
2394 which will be set to 1 if this entry is used.
2396 COMPONENT is the value to be passed to update_path.
2398 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2399 the complete value of machine_suffix.
2400 2 means try both machine_suffix and just_machine_suffix. */
2403 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2404 struct path_prefix *pprefix;
2406 const char *component;
2407 /* enum prefix_priority */ int priority;
2408 int require_machine_suffix;
2411 struct prefix_list *pl, **prev;
2414 for (prev = &pprefix->plist;
2415 (*prev) != NULL && (*prev)->priority <= priority;
2416 prev = &(*prev)->next)
2419 /* Keep track of the longest prefix */
2421 prefix = update_path (prefix, component);
2422 len = strlen (prefix);
2423 if (len > pprefix->max_len)
2424 pprefix->max_len = len;
2426 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2427 pl->prefix = save_string (prefix, len);
2428 pl->require_machine_suffix = require_machine_suffix;
2429 pl->used_flag_ptr = warn;
2430 pl->priority = priority;
2434 /* Insert after PREV */
2439 /* Execute the command specified by the arguments on the current line of spec.
2440 When using pipes, this includes several piped-together commands
2441 with `|' between them.
2443 Return 0 if successful, -1 if failed. */
2449 int n_commands; /* # of command. */
2453 const char *prog; /* program name. */
2454 const char **argv; /* vector of args. */
2455 int pid; /* pid of process for this command. */
2458 struct command *commands; /* each command buffer with above info. */
2460 /* Count # of piped commands. */
2461 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2462 if (strcmp (argbuf[i], "|") == 0)
2465 /* Get storage for each command. */
2466 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2468 /* Split argbuf into its separate piped processes,
2469 and record info about each one.
2470 Also search for the programs that are to be run. */
2472 commands[0].prog = argbuf[0]; /* first command. */
2473 commands[0].argv = &argbuf[0];
2474 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2477 commands[0].argv[0] = string;
2479 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2480 if (strcmp (argbuf[i], "|") == 0)
2481 { /* each command. */
2482 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2483 fatal ("-pipe not supported");
2485 argbuf[i] = 0; /* termination of command args. */
2486 commands[n_commands].prog = argbuf[i + 1];
2487 commands[n_commands].argv = &argbuf[i + 1];
2488 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2490 commands[n_commands].argv[0] = string;
2494 argbuf[argbuf_index] = 0;
2496 /* If -v, print what we are about to do, and maybe query. */
2500 /* For help listings, put a blank line between sub-processes. */
2501 if (print_help_list)
2502 fputc ('\n', stderr);
2504 /* Print each piped command as a separate line. */
2505 for (i = 0; i < n_commands; i++)
2507 const char *const *j;
2509 for (j = commands[i].argv; *j; j++)
2510 fprintf (stderr, " %s", *j);
2512 /* Print a pipe symbol after all but the last command. */
2513 if (i + 1 != n_commands)
2514 fprintf (stderr, " |");
2515 fprintf (stderr, "\n");
2519 notice ("\nGo ahead? (y or n) ");
2523 while (getchar () != '\n')
2526 if (i != 'y' && i != 'Y')
2531 /* Run each piped subprocess. */
2533 for (i = 0; i < n_commands; i++)
2535 char *errmsg_fmt, *errmsg_arg;
2536 const char *string = commands[i].argv[0];
2538 /* For some bizarre reason, the second argument of execvp() is
2539 char *const *, not const char *const *. */
2540 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2541 programname, temp_filename,
2542 &errmsg_fmt, &errmsg_arg,
2543 ((i == 0 ? PEXECUTE_FIRST : 0)
2544 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2545 | (string == commands[i].prog
2546 ? PEXECUTE_SEARCH : 0)
2547 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2549 if (commands[i].pid == -1)
2550 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2552 if (string != commands[i].prog)
2553 free ((PTR) string);
2558 /* Wait for all the subprocesses to finish.
2559 We don't care what order they finish in;
2560 we know that N_COMMANDS waits will get them all.
2561 Ignore subprocesses that we don't know about,
2562 since they can be spawned by the process that exec'ed us. */
2566 #ifdef HAVE_GETRUSAGE
2568 double ut = 0.0, st = 0.0;
2571 for (i = 0; i < n_commands;)
2577 pid = pwait (commands[i].pid, &status, 0);
2581 #ifdef HAVE_GETRUSAGE
2584 /* getrusage returns the total resource usage of all children
2585 up to now. Copy the previous values into prus, get the
2586 current statistics, then take the difference. */
2589 getrusage (RUSAGE_CHILDREN, &rus);
2590 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2591 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2592 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2594 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2595 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2596 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2600 for (j = 0; j < n_commands; j++)
2601 if (commands[j].pid == pid)
2604 if (WIFSIGNALED (status))
2607 /* SIGPIPE is a special case. It happens in -pipe mode
2608 when the compiler dies before the preprocessor is
2609 done, or the assembler dies before the compiler is
2610 done. There's generally been an error already, and
2611 this is just fallout. So don't generate another error
2612 unless we would otherwise have succeeded. */
2613 if (WTERMSIG (status) == SIGPIPE
2614 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2619 Internal error: %s (program %s)\n\
2620 Please submit a full bug report.\n\
2621 See %s for instructions.",
2622 strsignal (WTERMSIG (status)), commands[j].prog,
2627 else if (WIFEXITED (status)
2628 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2630 if (WEXITSTATUS (status) > greatest_status)
2631 greatest_status = WEXITSTATUS (status);
2634 #ifdef HAVE_GETRUSAGE
2635 if (report_times && ut + st != 0)
2636 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2645 /* Find all the switches given to us
2646 and make a vector describing them.
2647 The elements of the vector are strings, one per switch given.
2648 If a switch uses following arguments, then the `part1' field
2649 is the switch itself and the `args' field
2650 is a null-terminated vector containing the following arguments.
2651 The `live_cond' field is:
2653 1 if the switch is true in a conditional spec,
2654 -1 if false (overridden by a later switch)
2655 -2 if this switch should be ignored (used in %{<S})
2656 The `validated' field is nonzero if any spec has looked at this switch;
2657 if it remains zero at the end of the run, it must be meaningless. */
2660 #define SWITCH_FALSE -1
2661 #define SWITCH_IGNORE -2
2662 #define SWITCH_LIVE 1
2672 static struct switchstr *switches;
2674 static int n_switches;
2679 const char *language;
2682 /* Also a vector of input files specified. */
2684 static struct infile *infiles;
2686 static int n_infiles;
2688 /* This counts the number of libraries added by lang_specific_driver, so that
2689 we can tell if there were any user supplied any files or libraries. */
2691 static int added_libraries;
2693 /* And a vector of corresponding output files is made up later. */
2695 static const char **outfiles;
2697 /* Used to track if none of the -B paths are used. */
2700 /* Used to track if standard path isn't used and -b or -V is specified. */
2701 static int warn_std;
2703 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2704 static int *warn_std_ptr = 0;
2706 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2708 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2709 is true if we should look for an executable suffix as well. */
2712 convert_filename (name, do_exe)
2722 len = strlen (name);
2724 #ifdef HAVE_OBJECT_SUFFIX
2725 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2727 && name[len - 2] == '.'
2728 && name[len - 1] == 'o')
2730 obstack_grow (&obstack, name, len - 2);
2731 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2732 name = obstack_finish (&obstack);
2736 #ifdef HAVE_EXECUTABLE_SUFFIX
2737 /* If there is no filetype, make it the executable suffix (which includes
2738 the "."). But don't get confused if we have just "-o". */
2739 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2742 for (i = len - 1; i >= 0; i--)
2743 if (IS_DIR_SEPARATOR (name[i]))
2746 for (i++; i < len; i++)
2750 obstack_grow (&obstack, name, len);
2751 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2752 name = obstack_finish (&obstack);
2759 /* Display the command line switches accepted by gcc. */
2763 printf (_("Usage: %s [options] file...\n"), programname);
2764 fputs (_("Options:\n"), stdout);
2766 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2767 fputs (_(" --help Display this information\n"), stdout);
2768 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2770 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2771 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2772 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2773 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2774 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2775 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2776 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2777 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2778 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2780 -print-multi-lib Display the mapping between command line options and\n\
2781 multiple library search directories\n"), stdout);
2782 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2783 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2784 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2785 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2786 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2787 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2788 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2789 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2790 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2791 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2792 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2793 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2794 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2795 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2796 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2797 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2798 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2800 -x <language> Specify the language of the following input files\n\
2801 Permissable languages include: c c++ assembler none\n\
2802 'none' means revert to the default behaviour of\n\
2803 guessing the language based on the file's extension\n\
2807 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2808 the various sub-processes invoked by %s. In order to pass other options\n\
2809 on to these processes the -W<letter> options must be used.\n\
2812 /* The rest of the options are displayed by invocations of the various
2817 add_preprocessor_option (option, len)
2821 n_preprocessor_options++;
2823 if (! preprocessor_options)
2824 preprocessor_options
2825 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2827 preprocessor_options
2828 = (char **) xrealloc (preprocessor_options,
2829 n_preprocessor_options * sizeof (char *));
2831 preprocessor_options [n_preprocessor_options - 1] =
2832 save_string (option, len);
2836 add_assembler_option (option, len)
2840 n_assembler_options++;
2842 if (! assembler_options)
2844 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2847 = (char **) xrealloc (assembler_options,
2848 n_assembler_options * sizeof (char *));
2850 assembler_options [n_assembler_options - 1] = save_string (option, len);
2854 add_linker_option (option, len)
2860 if (! linker_options)
2862 = (char **) xmalloc (n_linker_options * sizeof (char *));
2865 = (char **) xrealloc (linker_options,
2866 n_linker_options * sizeof (char *));
2868 linker_options [n_linker_options - 1] = save_string (option, len);
2871 /* Create the vector `switches' and its contents.
2872 Store its length in `n_switches'. */
2875 process_command (argc, argv)
2877 const char *const *argv;
2882 const char *spec_lang = 0;
2883 int last_language_n_infiles;
2886 int lang_n_infiles = 0;
2887 #ifdef MODIFY_TARGET_NAME
2888 int is_modify_target_name;
2892 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2896 added_libraries = 0;
2898 /* Figure compiler version from version string. */
2900 compiler_version = temp1 = xstrdup (version_string);
2902 for (; *temp1; ++temp1)
2911 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2912 see if we can create it from the pathname specified in argv[0]. */
2915 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2916 if (!gcc_exec_prefix)
2918 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2919 standard_exec_prefix);
2920 if (gcc_exec_prefix)
2921 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2925 if (gcc_exec_prefix)
2927 int len = strlen (gcc_exec_prefix);
2928 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
2929 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2931 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2932 if (IS_DIR_SEPARATOR (*temp)
2933 && strncmp (temp + 1, "lib", 3) == 0
2934 && IS_DIR_SEPARATOR (temp[4])
2935 && strncmp (temp + 5, "gcc-lib", 7) == 0)
2936 len -= sizeof ("/lib/gcc-lib/") - 1;
2939 set_std_prefix (gcc_exec_prefix, len);
2940 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2941 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2942 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2943 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2946 /* COMPILER_PATH and LIBRARY_PATH have values
2947 that are lists of directory names with colons. */
2949 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2952 const char *startp, *endp;
2953 char *nstore = (char *) alloca (strlen (temp) + 3);
2955 startp = endp = temp;
2958 if (*endp == PATH_SEPARATOR || *endp == 0)
2960 strncpy (nstore, startp, endp - startp);
2962 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2963 else if (!IS_DIR_SEPARATOR (endp[-1]))
2965 nstore[endp - startp] = DIR_SEPARATOR;
2966 nstore[endp - startp + 1] = 0;
2969 nstore[endp - startp] = 0;
2970 add_prefix (&exec_prefixes, nstore, 0,
2971 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2972 add_prefix (&include_prefixes,
2973 concat (nstore, "include", NULL_PTR),
2974 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2977 endp = startp = endp + 1;
2984 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2985 if (temp && *cross_compile == '0')
2987 const char *startp, *endp;
2988 char *nstore = (char *) alloca (strlen (temp) + 3);
2990 startp = endp = temp;
2993 if (*endp == PATH_SEPARATOR || *endp == 0)
2995 strncpy (nstore, startp, endp - startp);
2997 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2998 else if (!IS_DIR_SEPARATOR (endp[-1]))
3000 nstore[endp - startp] = DIR_SEPARATOR;
3001 nstore[endp - startp + 1] = 0;
3004 nstore[endp - startp] = 0;
3005 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3006 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3009 endp = startp = endp + 1;
3016 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3017 GET_ENV_PATH_LIST (temp, "LPATH");
3018 if (temp && *cross_compile == '0')
3020 const char *startp, *endp;
3021 char *nstore = (char *) alloca (strlen (temp) + 3);
3023 startp = endp = temp;
3026 if (*endp == PATH_SEPARATOR || *endp == 0)
3028 strncpy (nstore, startp, endp - startp);
3030 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3031 else if (!IS_DIR_SEPARATOR (endp[-1]))
3033 nstore[endp - startp] = DIR_SEPARATOR;
3034 nstore[endp - startp + 1] = 0;
3037 nstore[endp - startp] = 0;
3038 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3039 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3042 endp = startp = endp + 1;
3049 /* Convert new-style -- options to old-style. */
3050 translate_options (&argc, &argv);
3052 /* Do language-specific adjustment/addition of flags. */
3053 lang_specific_driver (&argc, &argv, &added_libraries);
3055 /* Scan argv twice. Here, the first time, just count how many switches
3056 there will be in their vector, and how many input files in theirs.
3057 Also parse any switches that determine the configuration name, such as -b.
3058 Here we also parse the switches that cc itself uses (e.g. -v). */
3060 for (i = 1; i < argc; i++)
3062 if (! strcmp (argv[i], "-dumpspecs"))
3064 struct spec_list *sl;
3066 for (sl = specs; sl; sl = sl->next)
3067 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3068 if (link_command_spec)
3069 printf ("*link_command:\n%s\n\n", link_command_spec);
3072 else if (! strcmp (argv[i], "-dumpversion"))
3074 printf ("%s\n", spec_version);
3077 else if (! strcmp (argv[i], "-dumpmachine"))
3079 printf ("%s\n", spec_machine);
3082 else if (strcmp (argv[i], "-fhelp") == 0)
3084 /* translate_options () has turned --help into -fhelp. */
3085 print_help_list = 1;
3087 /* We will be passing a dummy file on to the sub-processes. */
3091 add_preprocessor_option ("--help", 6);
3092 add_assembler_option ("--help", 6);
3093 add_linker_option ("--help", 6);
3095 else if (strcmp (argv[i], "-ftarget-help") == 0)
3097 /* translate_options() has turned --target-help into -ftarget-help. */
3098 target_help_flag = 1;
3100 /* We will be passing a dummy file on to the sub-processes. */
3104 add_preprocessor_option ("--target-help", 13);
3105 add_assembler_option ("--target-help", 13);
3106 add_linker_option ("--target-help", 13);
3108 else if (! strcmp (argv[i], "-pass-exit-codes"))
3110 pass_exit_codes = 1;
3113 else if (! strcmp (argv[i], "-print-search-dirs"))
3114 print_search_dirs = 1;
3115 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3116 print_file_name = "libgcc.a";
3117 else if (! strncmp (argv[i], "-print-file-name=", 17))
3118 print_file_name = argv[i] + 17;
3119 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3120 print_prog_name = argv[i] + 17;
3121 else if (! strcmp (argv[i], "-print-multi-lib"))
3122 print_multi_lib = 1;
3123 else if (! strcmp (argv[i], "-print-multi-directory"))
3124 print_multi_directory = 1;
3125 else if (! strncmp (argv[i], "-Wa,", 4))
3128 /* Pass the rest of this option to the assembler. */
3130 /* Split the argument at commas. */
3132 for (j = 4; argv[i][j]; j++)
3133 if (argv[i][j] == ',')
3135 add_assembler_option (argv[i] + prev, j - prev);
3139 /* Record the part after the last comma. */
3140 add_assembler_option (argv[i] + prev, j - prev);
3142 else if (! strncmp (argv[i], "-Wp,", 4))
3145 /* Pass the rest of this option to the preprocessor. */
3147 /* Split the argument at commas. */
3149 for (j = 4; argv[i][j]; j++)
3150 if (argv[i][j] == ',')
3152 add_preprocessor_option (argv[i] + prev, j - prev);
3156 /* Record the part after the last comma. */
3157 add_preprocessor_option (argv[i] + prev, j - prev);
3159 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3160 /* The +e options to the C++ front-end. */
3162 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3165 /* Split the argument at commas. */
3166 for (j = 3; argv[i][j]; j++)
3167 n_infiles += (argv[i][j] == ',');
3169 else if (strcmp (argv[i], "-Xlinker") == 0)
3172 fatal ("argument to `-Xlinker' is missing");
3177 else if (strncmp (argv[i], "-l", 2) == 0)
3179 else if (strcmp (argv[i], "-save-temps") == 0)
3181 save_temps_flag = 1;
3184 else if (strcmp (argv[i], "-specs") == 0)
3186 struct user_specs *user = (struct user_specs *)
3187 xmalloc (sizeof (struct user_specs));
3189 fatal ("argument to `-specs' is missing");
3191 user->next = (struct user_specs *) 0;
3192 user->filename = argv[i];
3193 if (user_specs_tail)
3194 user_specs_tail->next = user;
3196 user_specs_head = user;
3197 user_specs_tail = user;
3199 else if (strncmp (argv[i], "-specs=", 7) == 0)
3201 struct user_specs *user = (struct user_specs *)
3202 xmalloc (sizeof (struct user_specs));
3203 if (strlen (argv[i]) == 7)
3204 fatal ("argument to `-specs=' is missing");
3206 user->next = (struct user_specs *) 0;
3207 user->filename = argv[i] + 7;
3208 if (user_specs_tail)
3209 user_specs_tail->next = user;
3211 user_specs_head = user;
3212 user_specs_tail = user;
3214 else if (strcmp (argv[i], "-time") == 0)
3216 else if (argv[i][0] == '-' && argv[i][1] != 0)
3218 register const char *p = &argv[i][1];
3219 register int c = *p;
3225 if (p[1] == 0 && i + 1 == argc)
3226 fatal ("argument to `-b' is missing");
3228 spec_machine = argv[++i];
3230 spec_machine = p + 1;
3232 warn_std_ptr = &warn_std;
3238 if (p[1] == 0 && i + 1 == argc)
3239 fatal ("argument to `-B' is missing");
3245 /* As a kludge, if the arg is "[foo/]stageN/", just
3246 add "[foo/]include" to the include prefix. */
3247 int len = strlen (value);
3250 && (IS_DIR_SEPARATOR (value[len - 8]))))
3251 && strncmp (value + len - 7, "stage", 5) == 0
3252 && ISDIGIT (value[len - 2])
3253 && (IS_DIR_SEPARATOR (value[len - 1])))
3256 add_prefix (&include_prefixes, "include", NULL_PTR,
3257 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3260 char *string = xmalloc (len + 1);
3261 strncpy (string, value, len-7);
3262 strcpy (string+len-7, "include");
3263 add_prefix (&include_prefixes, string, NULL_PTR,
3264 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3268 add_prefix (&exec_prefixes, value, NULL_PTR,
3269 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3270 add_prefix (&startfile_prefixes, value, NULL_PTR,
3271 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3272 add_prefix (&include_prefixes, concat (value, "include",
3275 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3280 case 'v': /* Print our subcommands and print versions. */
3282 /* If they do anything other than exactly `-v', don't set
3283 verbose_flag; rather, continue on to give the error. */
3291 if (p[1] == 0 && i + 1 == argc)
3292 fatal ("argument to `-V' is missing");
3294 spec_version = argv[++i];
3296 spec_version = p + 1;
3297 compiler_version = spec_version;
3298 warn_std_ptr = &warn_std;
3300 /* Validate the version number. Use the same checks
3301 done when inserting it into a spec.
3303 The format of the version string is
3304 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3306 const char *v = compiler_version;
3308 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3309 while (! ISDIGIT (*v))
3312 if (v > compiler_version && v[-1] != '-')
3313 fatal ("invalid version number format");
3315 /* Set V after the first period. */
3316 while (ISDIGIT (*v))
3320 fatal ("invalid version number format");
3323 while (ISDIGIT (*v))
3326 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3327 fatal ("invalid version number format");
3343 #if defined(HAVE_EXECUTABLE_SUFFIX)
3348 /* Forward scan, just in case -S or -c is specified
3355 if (argv[j][0] == '-')
3357 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3363 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3364 j += skip - (argv[j][2] != 0);
3365 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3372 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3374 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3376 argv[i] = convert_filename (argv[i], ! have_c);
3383 #ifdef MODIFY_TARGET_NAME
3384 is_modify_target_name = 0;
3387 j < sizeof modify_target / sizeof modify_target[0]; j++)
3388 if (! strcmp (argv[i], modify_target[j].sw))
3391 = (char *) xmalloc (strlen (modify_target[j].str)
3392 + strlen (spec_machine));
3395 int made_addition = 0;
3397 is_modify_target_name = 1;
3398 for (p = spec_machine, q = new_name; *p != 0; )
3400 if (modify_target[j].add_del == DELETE
3401 && (! strncmp (q, modify_target[j].str,
3402 strlen (modify_target[j].str))))
3403 p += strlen (modify_target[j].str);
3404 else if (modify_target[j].add_del == ADD
3405 && ! made_addition && *p == '-')
3407 for (r = modify_target[j].str; *r != 0; )
3415 spec_machine = new_name;
3418 if (is_modify_target_name)
3424 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3425 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3426 else if (WORD_SWITCH_TAKES_ARG (p))
3427 i += WORD_SWITCH_TAKES_ARG (p);
3437 if (have_c && have_o && lang_n_infiles > 1)
3438 fatal ("cannot specify -o with -c or -S and multiple compilations");
3440 /* Set up the search paths before we go looking for config files. */
3442 /* These come before the md prefixes so that we will find gcc's subcommands
3443 (such as cpp) rather than those of the host system. */
3444 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3445 as well as trying the machine and the version. */
3447 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3448 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3449 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3450 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3451 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3452 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3455 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3456 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3457 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3458 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3460 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3461 dir_separator_str, NULL_PTR);
3463 /* If tooldir is relative, base it on exec_prefixes. A relative
3464 tooldir lets us move the installed tree as a unit.
3466 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3467 directories, so that we can search both the user specified directory
3468 and the standard place. */
3470 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3472 if (gcc_exec_prefix)
3474 char *gcc_exec_tooldir_prefix
3475 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3476 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3478 add_prefix (&exec_prefixes,
3479 concat (gcc_exec_tooldir_prefix, "bin",
3480 dir_separator_str, NULL_PTR),
3481 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3482 add_prefix (&startfile_prefixes,
3483 concat (gcc_exec_tooldir_prefix, "lib",
3484 dir_separator_str, NULL_PTR),
3485 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3488 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3489 dir_separator_str, spec_version,
3490 dir_separator_str, tooldir_prefix, NULL_PTR);
3493 add_prefix (&exec_prefixes,
3494 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3495 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3496 add_prefix (&startfile_prefixes,
3497 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3498 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3500 /* More prefixes are enabled in main, after we read the specs file
3501 and determine whether this is cross-compilation or not. */
3503 /* Then create the space for the vectors and scan again. */
3505 switches = ((struct switchstr *)
3506 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3507 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3510 last_language_n_infiles = -1;
3512 /* This, time, copy the text of each switch and store a pointer
3513 to the copy in the vector of switches.
3514 Store all the infiles in their vector. */
3516 for (i = 1; i < argc; i++)
3518 /* Just skip the switches that were handled by the preceding loop. */
3519 #ifdef MODIFY_TARGET_NAME
3520 is_modify_target_name = 0;
3522 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3523 if (! strcmp (argv[i], modify_target[j].sw))
3524 is_modify_target_name = 1;
3526 if (is_modify_target_name)
3530 if (! strncmp (argv[i], "-Wa,", 4))
3532 else if (! strncmp (argv[i], "-Wp,", 4))
3534 else if (! strcmp (argv[i], "-pass-exit-codes"))
3536 else if (! strcmp (argv[i], "-print-search-dirs"))
3538 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3540 else if (! strncmp (argv[i], "-print-file-name=", 17))
3542 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3544 else if (! strcmp (argv[i], "-print-multi-lib"))
3546 else if (! strcmp (argv[i], "-print-multi-directory"))
3548 else if (strcmp (argv[i], "-ftarget-help") == 0)
3550 /* Create a dummy input file, so that we can pass --target-help on to
3551 the various sub-processes. */
3552 infiles[n_infiles].language = "c";
3553 infiles[n_infiles++].name = "target-dummy";
3555 /* Preserve the --target-help switch so that it can be caught by
3556 the cc1 spec string. */
3557 switches[n_switches].part1 = "--target-help";
3558 switches[n_switches].args = 0;
3559 switches[n_switches].live_cond = SWITCH_OK;
3560 switches[n_switches].validated = 0;
3564 else if (strcmp (argv[i], "-fhelp") == 0)
3568 /* Create a dummy input file, so that we can pass --help on to
3569 the various sub-processes. */
3570 infiles[n_infiles].language = "c";
3571 infiles[n_infiles++].name = "help-dummy";
3573 /* Preserve the --help switch so that it can be caught by the
3575 switches[n_switches].part1 = "--help";
3576 switches[n_switches].args = 0;
3577 switches[n_switches].live_cond = SWITCH_OK;
3578 switches[n_switches].validated = 0;
3583 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3585 /* Compensate for the +e options to the C++ front-end;
3586 they're there simply for cfront call-compatibility. We do
3587 some magic in default_compilers to pass them down properly.
3588 Note we deliberately start at the `+' here, to avoid passing
3589 -e0 or -e1 down into the linker. */
3590 switches[n_switches].part1 = &argv[i][0];
3591 switches[n_switches].args = 0;
3592 switches[n_switches].live_cond = SWITCH_OK;
3593 switches[n_switches].validated = 0;
3596 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3599 /* Split the argument at commas. */
3601 for (j = 4; argv[i][j]; j++)
3602 if (argv[i][j] == ',')
3604 infiles[n_infiles].language = "*";
3605 infiles[n_infiles++].name
3606 = save_string (argv[i] + prev, j - prev);
3609 /* Record the part after the last comma. */
3610 infiles[n_infiles].language = "*";
3611 infiles[n_infiles++].name = argv[i] + prev;
3613 else if (strcmp (argv[i], "-Xlinker") == 0)
3615 infiles[n_infiles].language = "*";
3616 infiles[n_infiles++].name = argv[++i];
3618 else if (strncmp (argv[i], "-l", 2) == 0)
3620 infiles[n_infiles].language = "*";
3621 infiles[n_infiles++].name = argv[i];
3623 else if (strcmp (argv[i], "-specs") == 0)
3625 else if (strncmp (argv[i], "-specs=", 7) == 0)
3627 else if (strcmp (argv[i], "-time") == 0)
3629 else if ((save_temps_flag || report_times)
3630 && strcmp (argv[i], "-pipe") == 0)
3632 /* -save-temps overrides -pipe, so that temp files are produced */
3633 if (save_temps_flag)
3634 error ("Warning: -pipe ignored because -save-temps specified");
3635 /* -time overrides -pipe because we can't get correct stats when
3636 multiple children are running at once. */
3637 else if (report_times)
3638 error ("Warning: -pipe ignored because -time specified");
3640 else if (argv[i][0] == '-' && argv[i][1] != 0)
3642 const char *p = &argv[i][1];
3647 if (p[1] == 0 && i + 1 == argc)
3648 fatal ("argument to `-x' is missing");
3650 spec_lang = argv[++i];
3653 if (! strcmp (spec_lang, "none"))
3654 /* Suppress the warning if -xnone comes after the last input
3655 file, because alternate command interfaces like g++ might
3656 find it useful to place -xnone after each input file. */
3659 last_language_n_infiles = n_infiles;
3662 switches[n_switches].part1 = p;
3663 /* Deal with option arguments in separate argv elements. */
3664 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3665 || WORD_SWITCH_TAKES_ARG (p))
3668 int n_args = WORD_SWITCH_TAKES_ARG (p);
3672 /* Count only the option arguments in separate argv elements. */
3673 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3675 if (i + n_args >= argc)
3676 fatal ("argument to `-%s' is missing", p);
3677 switches[n_switches].args
3678 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3680 switches[n_switches].args[j++] = argv[++i];
3681 /* Null-terminate the vector. */
3682 switches[n_switches].args[j] = 0;
3684 else if (strchr (switches_need_spaces, c))
3686 /* On some systems, ld cannot handle some options without
3687 a space. So split the option from its argument. */
3688 char *part1 = (char *) xmalloc (2);
3693 switches[n_switches].part1 = part1;
3694 switches[n_switches].args
3695 = (const char **) xmalloc (2 * sizeof (const char *));
3696 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3697 strcpy (tmp, &p[1]);
3698 switches[n_switches].args[1] = 0;
3701 switches[n_switches].args = 0;
3703 switches[n_switches].live_cond = SWITCH_OK;
3704 switches[n_switches].validated = 0;
3705 /* This is always valid, since gcc.c itself understands it. */
3706 if (!strcmp (p, "save-temps"))
3707 switches[n_switches].validated = 1;
3710 char ch = switches[n_switches].part1[0];
3711 if (ch == 'V' || ch == 'b' || ch == 'B')
3712 switches[n_switches].validated = 1;
3718 #ifdef HAVE_OBJECT_SUFFIX
3719 argv[i] = convert_filename (argv[i], 0);
3722 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3724 perror_with_name (argv[i]);
3729 infiles[n_infiles].language = spec_lang;
3730 infiles[n_infiles++].name = argv[i];
3735 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3736 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3738 switches[n_switches].part1 = 0;
3739 infiles[n_infiles].name = 0;
3742 /* Process a spec string, accumulating and running commands. */
3744 /* These variables describe the input file name.
3745 input_file_number is the index on outfiles of this file,
3746 so that the output file name can be stored for later use by %o.
3747 input_basename is the start of the part of the input file
3748 sans all directory names, and basename_length is the number
3749 of characters starting there excluding the suffix .c or whatever. */
3751 const char *input_filename;
3752 static int input_file_number;
3753 size_t input_filename_length;
3754 static int basename_length;
3755 static int suffixed_basename_length;
3756 static const char *input_basename;
3757 static const char *input_suffix;
3759 /* These are variables used within do_spec and do_spec_1. */
3761 /* Nonzero if an arg has been started and not yet terminated
3762 (with space, tab or newline). */
3763 static int arg_going;
3765 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3766 is a temporary file name. */
3767 static int delete_this_arg;
3769 /* Nonzero means %w has been seen; the next arg to be terminated
3770 is the output file name of this compilation. */
3771 static int this_is_output_file;
3773 /* Nonzero means %s has been seen; the next arg to be terminated
3774 is the name of a library file and we should try the standard
3775 search dirs for it. */
3776 static int this_is_library_file;
3778 /* Nonzero means that the input of this command is coming from a pipe. */
3779 static int input_from_pipe;
3781 /* Process the spec SPEC and run the commands specified therein.
3782 Returns 0 if the spec is successfully processed; -1 if failed. */
3792 delete_this_arg = 0;
3793 this_is_output_file = 0;
3794 this_is_library_file = 0;
3795 input_from_pipe = 0;
3797 value = do_spec_1 (spec, 0, NULL_PTR);
3799 /* Force out any unfinished command.
3800 If -pipe, this forces out the last command if it ended in `|'. */
3803 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3806 if (argbuf_index > 0)
3813 /* Process the sub-spec SPEC as a portion of a larger spec.
3814 This is like processing a whole spec except that we do
3815 not initialize at the beginning and we do not supply a
3816 newline by default at the end.
3817 INSWITCH nonzero means don't process %-sequences in SPEC;
3818 in this case, % is treated as an ordinary character.
3819 This is used while substituting switches.
3820 INSWITCH nonzero also causes SPC not to terminate an argument.
3822 Value is zero unless a line was finished
3823 and the command on that line reported an error. */
3826 do_spec_1 (spec, inswitch, soft_matched_part)
3829 const char *soft_matched_part;
3831 register const char *p = spec;
3838 /* If substituting a switch, treat all chars like letters.
3839 Otherwise, NL, SPC, TAB and % are special. */
3840 switch (inswitch ? 'a' : c)
3843 /* End of line: finish any pending argument,
3844 then run the pending command if one has been started. */
3847 obstack_1grow (&obstack, 0);
3848 string = obstack_finish (&obstack);
3849 if (this_is_library_file)
3850 string = find_file (string);
3851 store_arg (string, delete_this_arg, this_is_output_file);
3852 if (this_is_output_file)
3853 outfiles[input_file_number] = string;
3857 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3859 for (i = 0; i < n_switches; i++)
3860 if (!strcmp (switches[i].part1, "pipe"))
3863 /* A `|' before the newline means use a pipe here,
3864 but only if -pipe was specified.
3865 Otherwise, execute now and don't pass the `|' as an arg. */
3868 input_from_pipe = 1;
3869 switches[i].validated = 1;
3876 if (argbuf_index > 0)
3882 /* Reinitialize for a new command, and for a new argument. */
3885 delete_this_arg = 0;
3886 this_is_output_file = 0;
3887 this_is_library_file = 0;
3888 input_from_pipe = 0;
3892 /* End any pending argument. */
3895 obstack_1grow (&obstack, 0);
3896 string = obstack_finish (&obstack);
3897 if (this_is_library_file)
3898 string = find_file (string);
3899 store_arg (string, delete_this_arg, this_is_output_file);
3900 if (this_is_output_file)
3901 outfiles[input_file_number] = string;
3905 obstack_1grow (&obstack, c);
3911 /* Space or tab ends an argument if one is pending. */
3914 obstack_1grow (&obstack, 0);
3915 string = obstack_finish (&obstack);
3916 if (this_is_library_file)
3917 string = find_file (string);
3918 store_arg (string, delete_this_arg, this_is_output_file);
3919 if (this_is_output_file)
3920 outfiles[input_file_number] = string;
3922 /* Reinitialize for a new argument. */
3924 delete_this_arg = 0;
3925 this_is_output_file = 0;
3926 this_is_library_file = 0;
3933 fatal ("Invalid specification! Bug in cc.");
3936 obstack_grow (&obstack, input_basename, basename_length);
3941 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3946 delete_this_arg = 2;
3949 /* Dump out the directories specified with LIBRARY_PATH,
3950 followed by the absolute directories
3951 that we search for startfiles. */
3954 struct prefix_list *pl = startfile_prefixes.plist;
3955 size_t bufsize = 100;
3956 char *buffer = (char *) xmalloc (bufsize);
3959 for (; pl; pl = pl->next)
3961 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3962 /* Used on systems which record the specified -L dirs
3963 and use them to search for dynamic linking. */
3964 /* Relative directories always come from -B,
3965 and it is better not to use them for searching
3966 at run time. In particular, stage1 loses. */
3967 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3970 /* Try subdirectory if there is one. */
3971 if (multilib_dir != NULL)
3975 if (strlen (pl->prefix) + strlen (machine_suffix)
3977 bufsize = (strlen (pl->prefix)
3978 + strlen (machine_suffix)) * 2 + 1;
3979 buffer = (char *) xrealloc (buffer, bufsize);
3980 strcpy (buffer, pl->prefix);
3981 strcat (buffer, machine_suffix);
3982 if (is_directory (buffer, multilib_dir, 1))
3984 do_spec_1 ("-L", 0, NULL_PTR);
3985 #ifdef SPACE_AFTER_L_OPTION
3986 do_spec_1 (" ", 0, NULL_PTR);
3988 do_spec_1 (buffer, 1, NULL_PTR);
3989 do_spec_1 (multilib_dir, 1, NULL_PTR);
3990 /* Make this a separate argument. */
3991 do_spec_1 (" ", 0, NULL_PTR);
3994 if (!pl->require_machine_suffix)
3996 if (is_directory (pl->prefix, multilib_dir, 1))
3998 do_spec_1 ("-L", 0, NULL_PTR);
3999 #ifdef SPACE_AFTER_L_OPTION
4000 do_spec_1 (" ", 0, NULL_PTR);
4002 do_spec_1 (pl->prefix, 1, NULL_PTR);
4003 do_spec_1 (multilib_dir, 1, NULL_PTR);
4004 /* Make this a separate argument. */
4005 do_spec_1 (" ", 0, NULL_PTR);
4011 if (is_directory (pl->prefix, machine_suffix, 1))
4013 do_spec_1 ("-L", 0, NULL_PTR);
4014 #ifdef SPACE_AFTER_L_OPTION
4015 do_spec_1 (" ", 0, NULL_PTR);
4017 do_spec_1 (pl->prefix, 1, NULL_PTR);
4018 /* Remove slash from machine_suffix. */
4019 if (strlen (machine_suffix) >= bufsize)
4020 bufsize = strlen (machine_suffix) * 2 + 1;
4021 buffer = (char *) xrealloc (buffer, bufsize);
4022 strcpy (buffer, machine_suffix);
4023 idx = strlen (buffer);
4024 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4025 buffer[idx - 1] = 0;
4026 do_spec_1 (buffer, 1, NULL_PTR);
4027 /* Make this a separate argument. */
4028 do_spec_1 (" ", 0, NULL_PTR);
4031 if (!pl->require_machine_suffix)
4033 if (is_directory (pl->prefix, "", 1))
4035 do_spec_1 ("-L", 0, NULL_PTR);
4036 #ifdef SPACE_AFTER_L_OPTION
4037 do_spec_1 (" ", 0, NULL_PTR);
4039 /* Remove slash from pl->prefix. */
4040 if (strlen (pl->prefix) >= bufsize)
4041 bufsize = strlen (pl->prefix) * 2 + 1;
4042 buffer = (char *) xrealloc (buffer, bufsize);
4043 strcpy (buffer, pl->prefix);
4044 idx = strlen (buffer);
4045 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4046 buffer[idx - 1] = 0;
4047 do_spec_1 (buffer, 1, NULL_PTR);
4048 /* Make this a separate argument. */
4049 do_spec_1 (" ", 0, NULL_PTR);
4058 /* %efoo means report an error with `foo' as error message
4059 and don't execute any more commands for this file. */
4063 while (*p != 0 && *p != '\n')
4065 buf = (char *) alloca (p - q + 1);
4066 strncpy (buf, q, p - q);
4077 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4078 and it is not a directory, and it is writable, use it.
4079 Otherwise, fall through and treat this like any other
4082 if ((!save_temps_flag)
4083 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4084 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4086 obstack_grow (&obstack, HOST_BIT_BUCKET,
4087 strlen (HOST_BIT_BUCKET));
4088 delete_this_arg = 0;
4096 if (save_temps_flag)
4098 obstack_grow (&obstack, input_basename, basename_length);
4099 delete_this_arg = 0;
4103 struct temp_name *t;
4105 const char *suffix = p;
4106 char *saved_suffix = NULL;
4108 while (*p == '.' || ISALPHA ((unsigned char) *p))
4110 suffix_length = p - suffix;
4111 if (p[0] == '%' && p[1] == 'O')
4114 /* We don't support extra suffix characters after %O. */
4115 if (*p == '.' || ISALPHA ((unsigned char) *p))
4117 if (suffix_length == 0)
4118 suffix = OBJECT_SUFFIX;
4122 = (char *) xmalloc (suffix_length
4123 + strlen (OBJECT_SUFFIX));
4124 strncpy (saved_suffix, suffix, suffix_length);
4125 strcpy (saved_suffix + suffix_length,
4128 suffix_length += strlen (OBJECT_SUFFIX);
4131 /* See if we already have an association of %g/%u/%U and
4133 for (t = temp_names; t; t = t->next)
4134 if (t->length == suffix_length
4135 && strncmp (t->suffix, suffix, suffix_length) == 0
4136 && t->unique == (c != 'g'))
4139 /* Make a new association if needed. %u and %j require one. */
4140 if (t == 0 || c == 'u' || c == 'j')
4144 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4145 t->next = temp_names;
4148 t->length = suffix_length;
4149 t->suffix = save_string (suffix, suffix_length);
4150 t->unique = (c != 'g');
4151 temp_filename = make_temp_file (t->suffix);
4152 temp_filename_length = strlen (temp_filename);
4153 t->filename = temp_filename;
4154 t->filename_length = temp_filename_length;
4158 free (saved_suffix);
4160 obstack_grow (&obstack, t->filename, t->filename_length);
4161 delete_this_arg = 1;
4167 obstack_grow (&obstack, input_filename, input_filename_length);
4173 struct prefix_list *pl = include_prefixes.plist;
4175 if (gcc_exec_prefix)
4177 do_spec_1 ("-iprefix", 1, NULL_PTR);
4178 /* Make this a separate argument. */
4179 do_spec_1 (" ", 0, NULL_PTR);
4180 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4181 do_spec_1 (" ", 0, NULL_PTR);
4184 for (; pl; pl = pl->next)
4186 do_spec_1 ("-isystem", 1, NULL_PTR);
4187 /* Make this a separate argument. */
4188 do_spec_1 (" ", 0, NULL_PTR);
4189 do_spec_1 (pl->prefix, 1, NULL_PTR);
4190 do_spec_1 (" ", 0, NULL_PTR);
4197 int max = n_infiles;
4198 max += lang_specific_extra_outfiles;
4200 for (i = 0; i < max; i++)
4202 store_arg (outfiles[i], 0, 0);
4207 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4212 this_is_library_file = 1;
4216 this_is_output_file = 1;
4221 int cur_index = argbuf_index;
4222 /* Handle the {...} following the %W. */
4225 p = handle_braces (p + 1);
4228 /* If any args were output, mark the last one for deletion
4230 if (argbuf_index != cur_index)
4231 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4235 /* %x{OPTION} records OPTION for %X to output. */
4241 /* Skip past the option value and make a copy. */
4246 string = save_string (p1 + 1, p - p1 - 2);
4248 /* See if we already recorded this option. */
4249 for (i = 0; i < n_linker_options; i++)
4250 if (! strcmp (string, linker_options[i]))
4256 /* This option is new; add it. */
4257 add_linker_option (string, strlen (string));
4261 /* Dump out the options accumulated previously using %x. */
4263 for (i = 0; i < n_linker_options; i++)
4265 do_spec_1 (linker_options[i], 1, NULL_PTR);
4266 /* Make each accumulated option a separate argument. */
4267 do_spec_1 (" ", 0, NULL_PTR);
4271 /* Dump out the options accumulated previously using -Wa,. */
4273 for (i = 0; i < n_assembler_options; i++)
4275 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4276 /* Make each accumulated option a separate argument. */
4277 do_spec_1 (" ", 0, NULL_PTR);
4281 /* Dump out the options accumulated previously using -Wp,. */
4283 for (i = 0; i < n_preprocessor_options; i++)
4285 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4286 /* Make each accumulated option a separate argument. */
4287 do_spec_1 (" ", 0, NULL_PTR);
4291 /* Here are digits and numbers that just process
4292 a certain constant string as a spec. */
4295 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4301 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4307 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4313 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4319 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4325 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4331 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4337 value = do_spec_1 (link_spec, 0, NULL_PTR);
4343 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4349 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4356 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4360 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4364 if (! strncmp (y, "-D", 2))
4365 /* Copy the whole option. */
4366 while (*y && *y != ' ' && *y != '\t')
4368 else if (*y == ' ' || *y == '\t')
4369 /* Copy whitespace to the result. */
4371 /* Don't copy other options. */
4378 value = do_spec_1 (buf, 0, NULL_PTR);
4386 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4390 /* Copy all of CPP_PREDEFINES into BUF,
4391 but force them all into the reserved name space if they
4392 aren't already there. The reserved name space is all
4393 identifiers beginning with two underscores or with one
4394 underscore and a capital letter. We do the forcing by
4395 adding up to two underscores to the beginning and end
4396 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4401 if (! strncmp (y, "-D", 2))
4410 && ! ISUPPER ((unsigned char) *(y + 1))))
4412 /* Stick __ at front of macro name. */
4416 /* Arrange to stick __ at the end as well. */
4420 /* Copy the macro name. */
4421 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4434 /* Copy the value given, if any. */
4435 while (*y && *y != ' ' && *y != '\t')
4438 else if (*y == ' ' || *y == '\t')
4439 /* Copy whitespace to the result. */
4441 /* Don't copy -A options */
4447 /* Copy all of CPP_PREDEFINES into BUF,
4448 but put __ after every -D. */
4452 if (! strncmp (y, "-D", 2))
4458 && ! ISUPPER ((unsigned char) *(y + 1))))
4460 /* Stick -D__ at front of macro name. */
4467 /* Copy the macro name. */
4468 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4471 /* Copy the value given, if any. */
4472 while (*y && *y != ' ' && *y != '\t')
4477 /* Do not copy this macro - we have just done it before */
4478 while (*y && *y != ' ' && *y != '\t')
4482 else if (*y == ' ' || *y == '\t')
4483 /* Copy whitespace to the result. */
4485 /* Don't copy -A options. */
4491 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4495 if (! strncmp (y, "-A", 2))
4496 /* Copy the whole option. */
4497 while (*y && *y != ' ' && *y != '\t')
4499 else if (*y == ' ' || *y == '\t')
4500 /* Copy whitespace to the result. */
4502 /* Don't copy other options. */
4509 value = do_spec_1 (buf, 0, NULL_PTR);
4516 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4521 /* Here we define characters other than letters and digits. */
4524 p = handle_braces (p);
4530 obstack_1grow (&obstack, '%');
4534 if (soft_matched_part)
4536 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4537 do_spec_1 (" ", 0, NULL_PTR);
4540 /* Catch the case where a spec string contains something like
4541 '%{foo:%*}'. ie there is no * in the pattern on the left
4542 hand side of the :. */
4543 error ("Spec failure: '%%*' has not been initialised by pattern match");
4546 /* Process a string found as the value of a spec given by name.
4547 This feature allows individual machine descriptions
4548 to add and use their own specs.
4549 %[...] modifies -D options the way %P does;
4550 %(...) uses the spec unmodified. */
4552 error ("Warning: use of obsolete %%[ operator in specs");
4555 const char *name = p;
4556 struct spec_list *sl;
4559 /* The string after the S/P is the name of a spec that is to be
4561 while (*p && *p != ')' && *p != ']')
4564 /* See if it's in the list. */
4565 for (len = p - name, sl = specs; sl; sl = sl->next)
4566 if (sl->name_len == len && !strncmp (sl->name, name, len))
4568 name = *(sl->ptr_spec);
4570 notice ("Processing spec %c%s%c, which is '%s'\n",
4571 c, sl->name, (c == '(') ? ')' : ']', name);
4580 value = do_spec_1 (name, 0, NULL_PTR);
4586 char *x = (char *) alloca (strlen (name) * 2 + 1);
4588 const char *y = name;
4591 /* Copy all of NAME into BUF, but put __ after
4592 every -D and at the end of each arg. */
4595 if (! strncmp (y, "-D", 2))
4606 && (*y == ' ' || *y == '\t' || *y == '='
4607 || *y == '}' || *y == 0))
4620 value = do_spec_1 (buf, 0, NULL_PTR);
4626 /* Discard the closing paren or bracket. */
4634 int c1 = *p++; /* Select first or second version number. */
4635 const char *v = compiler_version;
4637 static const char zeroc = '0';
4639 /* The format of the version string is
4640 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4642 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4643 while (! ISDIGIT (*v))
4645 if (v > compiler_version && v[-1] != '-')
4648 /* If desired, advance to second version number. */
4651 /* Set V after the first period. */
4652 while (ISDIGIT (*v))
4659 /* If desired, advance to third version number.
4660 But don't complain if it's not present */
4663 /* Set V after the second period. */
4664 while (ISDIGIT (*v))
4666 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4672 /* Set Q at the next period or at the end. */
4674 while (ISDIGIT (*q))
4676 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4680 /* Put that part into the command. */
4681 obstack_grow (&obstack, v, q - v);
4683 /* Default to "0" */
4684 obstack_grow (&obstack, &zeroc, 1);
4690 if (input_from_pipe)
4691 do_spec_1 ("-", 0, NULL_PTR);
4695 error ("Spec failure: Unrecognised spec option '%c'", c);
4701 /* Backslash: treat next character as ordinary. */
4706 /* Ordinary character: put it into the current argument. */
4707 obstack_1grow (&obstack, c);
4711 /* End of string. */
4715 /* Return 0 if we call do_spec_1 and that returns -1. */
4719 register const char *p;
4721 const char *filter, *body = NULL, *endbody = NULL;
4723 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4726 int include_blanks = 1;
4727 int elide_switch = 0;
4731 /* A '^' after the open-brace means to not give blanks before args. */
4738 /* A `|' after the open-brace means,
4739 if the test fails, output a single minus sign rather than nothing.
4740 This is used in %{|!pipe:...}. */
4747 /* A `<' after the open-brace means that the switch should be
4748 removed from the command-line. */
4754 negate = suffix = 0;
4757 /* A `!' after the open-brace negates the condition:
4758 succeed if the specified switch is not present. */
4762 /* A `.' after the open-brace means test against the current suffix. */
4771 if (elide_switch && (negate || pipe_p || suffix))
4773 /* It doesn't make sense to mix elision with other flags. We
4774 could fatal() here, but the standard seems to be to abort. */
4779 while (*p != ':' && *p != '}' && *p != '|')
4782 if (*p == '|' && pipe_p)
4789 register int count = 1;
4790 register const char *q = p;
4809 body = p, endbody = p + 1;
4814 int found = (input_suffix != 0
4815 && (long) strlen (input_suffix) == (long) (p - filter)
4816 && strncmp (input_suffix, filter, p - filter) == 0);
4822 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4825 else if (p[-1] == '*' && p[0] == '}')
4827 /* Substitute all matching switches as separate args. */
4830 for (i = 0; i < n_switches; i++)
4831 if (!strncmp (switches[i].part1, filter, p - filter)
4832 && check_live_switch (i, p - filter))
4833 give_switch (i, 0, include_blanks);
4837 /* Test for presence of the specified switch. */
4841 /* If name specified ends in *, as in {x*:...},
4842 check for %* and handle that case. */
4843 if (p[-1] == '*' && !negate)
4846 const char *r = body;
4848 /* First see whether we have %*. */
4852 if (*r == '%' && r[1] == '*')
4856 /* If we do, handle that case. */
4859 /* Substitute all matching switches as separate args.
4860 But do this by substituting for %*
4861 in the text that follows the colon. */
4863 unsigned hard_match_len = p - filter - 1;
4864 char *string = save_string (body, endbody - body - 1);
4866 for (i = 0; i < n_switches; i++)
4867 if (!strncmp (switches[i].part1, filter, hard_match_len)
4868 && check_live_switch (i, -1))
4870 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4871 /* Pass any arguments this switch has. */
4872 give_switch (i, 1, 1);
4875 /* We didn't match. Try again. */
4882 /* If name specified ends in *, as in {x*:...},
4883 check for presence of any switch name starting with x. */
4886 for (i = 0; i < n_switches; i++)
4888 unsigned hard_match_len = p - filter - 1;
4890 if (!strncmp (switches[i].part1, filter, hard_match_len)
4891 && check_live_switch (i, hard_match_len))
4898 /* Otherwise, check for presence of exact name specified. */
4901 for (i = 0; i < n_switches; i++)
4903 if (!strncmp (switches[i].part1, filter, p - filter)
4904 && switches[i].part1[p - filter] == 0
4905 && check_live_switch (i, -1))
4913 /* If it is as desired (present for %{s...}, absent for %{!s...})
4914 then substitute either the switch or the specified
4915 conditional text. */
4916 if (present != negate)
4920 switches[i].live_cond = SWITCH_IGNORE;
4921 switches[i].validated = 1;
4925 give_switch (i, 0, include_blanks);
4928 /* Even if many alternatives are matched, only output once. */
4933 /* Here if a %{|...} conditional fails: output a minus sign,
4934 which means "standard output" or "standard input". */
4935 do_spec_1 ("-", 0, NULL_PTR);
4940 /* We didn't match; try again. */
4944 /* Process the spec just once, regardless of match count. */
4947 if (do_spec_1 (save_string (body, endbody - body - 1),
4955 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4956 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4957 spec, or -1 if either exact match or %* is used.
4959 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4960 whose value does not begin with "no-" is obsoleted by the same value
4961 with the "no-", similarly for a switch with the "no-" prefix. */
4964 check_live_switch (switchnum, prefix_length)
4968 const char *name = switches[switchnum].part1;
4971 /* In the common case of {<at-most-one-letter>*}, a negating
4972 switch would always match, so ignore that case. We will just
4973 send the conflicting switches to the compiler phase. */
4974 if (prefix_length >= 0 && prefix_length <= 1)
4977 /* If we already processed this switch and determined if it was
4978 live or not, return our past determination. */
4979 if (switches[switchnum].live_cond != 0)
4980 return switches[switchnum].live_cond > 0;
4982 /* Now search for duplicate in a manner that depends on the name. */
4986 for (i = switchnum + 1; i < n_switches; i++)
4987 if (switches[i].part1[0] == 'O')
4989 switches[switchnum].validated = 1;
4990 switches[switchnum].live_cond = SWITCH_FALSE;
4995 case 'W': case 'f': case 'm':
4996 if (! strncmp (name + 1, "no-", 3))
4998 /* We have Xno-YYY, search for XYYY. */
4999 for (i = switchnum + 1; i < n_switches; i++)
5000 if (switches[i].part1[0] == name[0]
5001 && ! strcmp (&switches[i].part1[1], &name[4]))
5003 switches[switchnum].validated = 1;
5004 switches[switchnum].live_cond = SWITCH_FALSE;
5010 /* We have XYYY, search for Xno-YYY. */
5011 for (i = switchnum + 1; i < n_switches; i++)
5012 if (switches[i].part1[0] == name[0]
5013 && switches[i].part1[1] == 'n'
5014 && switches[i].part1[2] == 'o'
5015 && switches[i].part1[3] == '-'
5016 && !strcmp (&switches[i].part1[4], &name[1]))
5018 switches[switchnum].validated = 1;
5019 switches[switchnum].live_cond = SWITCH_FALSE;
5026 /* Otherwise the switch is live. */
5027 switches[switchnum].live_cond = SWITCH_LIVE;
5031 /* Pass a switch to the current accumulating command
5032 in the same form that we received it.
5033 SWITCHNUM identifies the switch; it is an index into
5034 the vector of switches gcc received, which is `switches'.
5035 This cannot fail since it never finishes a command line.
5037 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5039 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5043 give_switch (switchnum, omit_first_word, include_blanks)
5045 int omit_first_word;
5048 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5051 if (!omit_first_word)
5053 do_spec_1 ("-", 0, NULL_PTR);
5054 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5057 if (switches[switchnum].args != 0)
5060 for (p = switches[switchnum].args; *p; p++)
5063 do_spec_1 (" ", 0, NULL_PTR);
5064 do_spec_1 (*p, 1, NULL_PTR);
5068 do_spec_1 (" ", 0, NULL_PTR);
5069 switches[switchnum].validated = 1;
5072 /* Search for a file named NAME trying various prefixes including the
5073 user's -B prefix and some standard ones.
5074 Return the absolute file name found. If nothing is found, return NAME. */
5082 /* Try multilib_dir if it is defined. */
5083 if (multilib_dir != NULL)
5087 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5088 strcpy (try, multilib_dir);
5089 strcat (try, dir_separator_str);
5092 newname = find_a_file (&startfile_prefixes, try, R_OK);
5094 /* If we don't find it in the multi library dir, then fall
5095 through and look for it in the normal places. */
5096 if (newname != NULL)
5100 newname = find_a_file (&startfile_prefixes, name, R_OK);
5101 return newname ? newname : name;
5104 /* Determine whether a directory exists. If LINKER, return 0 for
5105 certain fixed names not needed by the linker. If not LINKER, it is
5106 only important to return 0 if the host machine has a small ARG_MAX
5110 is_directory (path1, path2, linker)
5115 int len1 = strlen (path1);
5116 int len2 = strlen (path2);
5117 char *path = (char *) alloca (3 + len1 + len2);
5121 #ifndef SMALL_ARG_MAX
5126 /* Construct the path from the two parts. Ensure the string ends with "/.".
5127 The resulting path will be a directory even if the given path is a
5129 memcpy (path, path1, len1);
5130 memcpy (path + len1, path2, len2);
5131 cp = path + len1 + len2;
5132 if (!IS_DIR_SEPARATOR (cp[-1]))
5133 *cp++ = DIR_SEPARATOR;
5137 /* Exclude directories that the linker is known to search. */
5140 && strcmp (path, concat (dir_separator_str, "lib",
5141 dir_separator_str, ".", NULL_PTR)) == 0)
5143 && strcmp (path, concat (dir_separator_str, "usr",
5144 dir_separator_str, "lib",
5145 dir_separator_str, ".", NULL_PTR)) == 0)))
5148 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5151 /* Set up the various global variables to indicate that we're processing
5152 the input file named FILENAME. */
5155 set_input (filename)
5156 const char *filename;
5158 register const char *p;
5160 input_filename = filename;
5161 input_filename_length = strlen (input_filename);
5163 input_basename = input_filename;
5164 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5165 /* Skip drive name so 'x:foo' is handled properly. */
5166 if (input_basename[1] == ':')
5167 input_basename += 2;
5169 for (p = input_basename; *p; p++)
5170 if (IS_DIR_SEPARATOR (*p))
5171 input_basename = p + 1;
5173 /* Find a suffix starting with the last period,
5174 and set basename_length to exclude that suffix. */
5175 basename_length = strlen (input_basename);
5176 suffixed_basename_length = basename_length;
5177 p = input_basename + basename_length;
5178 while (p != input_basename && *p != '.')
5180 if (*p == '.' && p != input_basename)
5182 basename_length = p - input_basename;
5183 input_suffix = p + 1;
5189 /* On fatal signals, delete all the temporary files. */
5192 fatal_error (signum)
5195 signal (signum, SIG_DFL);
5196 delete_failure_queue ();
5197 delete_temp_files ();
5198 /* Get the same signal again, this time not handled,
5199 so its normal effect occurs. */
5200 kill (getpid (), signum);
5203 extern int main PARAMS ((int, const char *const *));
5208 const char *const *argv;
5212 int linker_was_run = 0;
5213 char *explicit_link_files;
5216 struct user_specs *uptr;
5218 p = argv[0] + strlen (argv[0]);
5219 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5223 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5224 /* Perform host dependant initialization when needed. */
5225 GCC_DRIVER_HOST_INITIALIZATION;
5228 #ifdef HAVE_LC_MESSAGES
5229 setlocale (LC_MESSAGES, "");
5231 (void) bindtextdomain (PACKAGE, localedir);
5232 (void) textdomain (PACKAGE);
5234 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5235 signal (SIGINT, fatal_error);
5237 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5238 signal (SIGHUP, fatal_error);
5240 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5241 signal (SIGTERM, fatal_error);
5243 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5244 signal (SIGPIPE, fatal_error);
5248 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5250 obstack_init (&obstack);
5252 /* Build multilib_select, et. al from the separate lines that make up each
5253 multilib selection. */
5255 const char *const *q = multilib_raw;
5258 obstack_init (&multilib_obstack);
5259 while ((p = *q++) != (char *) 0)
5260 obstack_grow (&multilib_obstack, p, strlen (p));
5262 obstack_1grow (&multilib_obstack, 0);
5263 multilib_select = obstack_finish (&multilib_obstack);
5265 q = multilib_matches_raw;
5266 while ((p = *q++) != (char *) 0)
5267 obstack_grow (&multilib_obstack, p, strlen (p));
5269 obstack_1grow (&multilib_obstack, 0);
5270 multilib_matches = obstack_finish (&multilib_obstack);
5272 q = multilib_exclusions_raw;
5273 while ((p = *q++) != (char *) 0)
5274 obstack_grow (&multilib_obstack, p, strlen (p));
5276 obstack_1grow (&multilib_obstack, 0);
5277 multilib_exclusions = obstack_finish (&multilib_obstack);
5280 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5283 obstack_1grow (&multilib_obstack, ' ');
5284 obstack_grow (&multilib_obstack,
5285 multilib_defaults_raw[i],
5286 strlen (multilib_defaults_raw[i]));
5290 obstack_1grow (&multilib_obstack, 0);
5291 multilib_defaults = obstack_finish (&multilib_obstack);
5294 /* Set up to remember the pathname of gcc and any options
5295 needed for collect. We use argv[0] instead of programname because
5296 we need the complete pathname. */
5297 obstack_init (&collect_obstack);
5298 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5299 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5300 putenv (obstack_finish (&collect_obstack));
5302 #ifdef INIT_ENVIRONMENT
5303 /* Set up any other necessary machine specific environment variables. */
5304 putenv (INIT_ENVIRONMENT);
5307 /* Make a table of what switches there are (switches, n_switches).
5308 Make a table of specified input files (infiles, n_infiles).
5309 Decode switches that are handled locally. */
5311 process_command (argc, argv);
5316 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5318 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5319 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5322 for (i = 0; (int) i < n_switches; i++)
5324 const char *const *args;
5327 obstack_grow (&collect_obstack, " ", 1);
5330 obstack_grow (&collect_obstack, "'-", 2);
5331 q = switches[i].part1;
5332 while ((p = strchr (q, '\'')))
5334 obstack_grow (&collect_obstack, q, p - q);
5335 obstack_grow (&collect_obstack, "'\\''", 4);
5338 obstack_grow (&collect_obstack, q, strlen (q));
5339 obstack_grow (&collect_obstack, "'", 1);
5341 for (args = switches[i].args; args && *args; args++)
5343 obstack_grow (&collect_obstack, " '", 2);
5345 while ((p = strchr (q, '\'')))
5347 obstack_grow (&collect_obstack, q, p - q);
5348 obstack_grow (&collect_obstack, "'\\''", 4);
5351 obstack_grow (&collect_obstack, q, strlen (q));
5352 obstack_grow (&collect_obstack, "'", 1);
5355 obstack_grow (&collect_obstack, "\0", 1);
5356 putenv (obstack_finish (&collect_obstack));
5359 /* Initialize the vector of specs to just the default.
5360 This means one element containing 0s, as a terminator. */
5362 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5363 memcpy ((char *) compilers, (char *) default_compilers,
5364 sizeof default_compilers);
5365 n_compilers = n_default_compilers;
5367 /* Read specs from a file if there is one. */
5369 machine_suffix = concat (spec_machine, dir_separator_str,
5370 spec_version, dir_separator_str, NULL_PTR);
5371 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5373 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5374 /* Read the specs file unless it is a default one. */
5375 if (specs_file != 0 && strcmp (specs_file, "specs"))
5376 read_specs (specs_file, TRUE);
5380 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5381 for any override of as, ld and libraries. */
5382 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5383 + strlen (just_machine_suffix)
5384 + sizeof ("specs"));
5386 strcpy (specs_file, standard_exec_prefix);
5387 strcat (specs_file, just_machine_suffix);
5388 strcat (specs_file, "specs");
5389 if (access (specs_file, R_OK) == 0)
5390 read_specs (specs_file, TRUE);
5392 /* If not cross-compiling, look for startfiles in the standard places. */
5393 if (*cross_compile == '0')
5395 if (*md_exec_prefix)
5397 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5398 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5399 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5400 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5403 if (*md_startfile_prefix)
5404 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5405 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5407 if (*md_startfile_prefix_1)
5408 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5409 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5411 /* If standard_startfile_prefix is relative, base it on
5412 standard_exec_prefix. This lets us move the installed tree
5413 as a unit. If GCC_EXEC_PREFIX is defined, base
5414 standard_startfile_prefix on that as well. */
5415 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5416 || *standard_startfile_prefix == '$'
5417 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5418 /* Check for disk name on MS-DOS-based systems. */
5419 || (standard_startfile_prefix[1] == ':'
5420 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5423 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5424 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5427 if (gcc_exec_prefix)
5428 add_prefix (&startfile_prefixes,
5429 concat (gcc_exec_prefix, machine_suffix,
5430 standard_startfile_prefix, NULL_PTR),
5431 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5432 add_prefix (&startfile_prefixes,
5433 concat (standard_exec_prefix,
5435 standard_startfile_prefix, NULL_PTR),
5436 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5439 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5440 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5441 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5442 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5443 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5444 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5445 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5450 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5451 add_prefix (&startfile_prefixes,
5452 concat (gcc_exec_prefix, machine_suffix,
5453 standard_startfile_prefix, NULL_PTR),
5454 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5457 /* Process any user specified specs in the order given on the command
5459 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5461 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5462 read_specs (filename ? filename : uptr->filename, FALSE);
5465 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5466 if (gcc_exec_prefix)
5468 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5469 + strlen (spec_version)
5470 + strlen (spec_machine) + 3);
5471 strcpy (temp, gcc_exec_prefix);
5472 strcat (temp, spec_machine);
5473 strcat (temp, dir_separator_str);
5474 strcat (temp, spec_version);
5475 strcat (temp, dir_separator_str);
5476 gcc_exec_prefix = temp;
5479 /* Now we have the specs.
5480 Set the `valid' bits for switches that match anything in any spec. */
5482 validate_all_switches ();
5484 /* Now that we have the switches and the specs, set
5485 the subdirectory based on the options. */
5486 set_multilib_dir ();
5488 /* Warn about any switches that no pass was interested in. */
5490 for (i = 0; (int) i < n_switches; i++)
5491 if (! switches[i].validated)
5492 error ("unrecognized option `-%s'", switches[i].part1);
5494 /* Obey some of the options. */
5496 if (print_search_dirs)
5498 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5499 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5500 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5504 if (print_file_name)
5506 printf ("%s\n", find_file (print_file_name));
5510 if (print_prog_name)
5512 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5513 printf ("%s\n", (newname ? newname : print_prog_name));
5517 if (print_multi_lib)
5519 print_multilib_info ();
5523 if (print_multi_directory)
5525 if (multilib_dir == NULL)
5528 printf ("%s\n", multilib_dir);
5532 if (target_help_flag)
5534 /* Print if any target specific options.*/
5536 /* We do not exit here. Instead we have created a fake input file
5537 called 'target-dummy' which needs to be compiled, and we pass this
5538 on to the various sub-processes, along with the --target-help
5542 if (print_help_list)
5548 printf (_("\nFor bug reporting instructions, please see:\n"));
5549 printf ("%s.\n", GCCBUGURL);
5554 /* We do not exit here. Instead we have created a fake input file
5555 called 'help-dummy' which needs to be compiled, and we pass this
5556 on the the various sub-processes, along with the --help switch. */
5563 notice ("Configured with: %s\n", configuration_arguments);
5565 /* compiler_version is truncated at the first space when initialized
5566 from version string, so truncate version_string at the first space
5567 before comparing. */
5568 for (n = 0; version_string[n]; n++)
5569 if (version_string[n] == ' ')
5572 if (! strncmp (version_string, compiler_version, n)
5573 && compiler_version[n] == 0)
5574 notice ("gcc version %s\n", version_string);
5576 notice ("gcc driver version %s executing gcc version %s\n",
5577 version_string, compiler_version);
5583 if (n_infiles == added_libraries)
5584 fatal ("No input files");
5586 /* Make a place to record the compiler output file names
5587 that correspond to the input files. */
5590 i += lang_specific_extra_outfiles;
5591 outfiles = (const char **) xcalloc (i, sizeof (char *));
5593 /* Record which files were specified explicitly as link input. */
5595 explicit_link_files = xcalloc (1, n_infiles);
5597 for (i = 0; (int) i < n_infiles; i++)
5599 register struct compiler *cp = 0;
5600 int this_file_error = 0;
5602 /* Tell do_spec what to substitute for %i. */
5604 input_file_number = i;
5605 set_input (infiles[i].name);
5607 /* Use the same thing in %o, unless cp->spec says otherwise. */
5609 outfiles[i] = input_filename;
5611 /* Figure out which compiler from the file's suffix. */
5613 cp = lookup_compiler (infiles[i].name, input_filename_length,
5614 infiles[i].language);
5618 /* Ok, we found an applicable compiler. Run its spec. */
5620 if (cp->spec[0] == '#')
5621 error ("%s: %s compiler not installed on this system",
5622 input_filename, &cp->spec[1]);
5623 value = do_spec (cp->spec);
5625 this_file_error = 1;
5628 /* If this file's name does not contain a recognized suffix,
5629 record it as explicit linker input. */
5632 explicit_link_files[i] = 1;
5634 /* Clear the delete-on-failure queue, deleting the files in it
5635 if this compilation failed. */
5637 if (this_file_error)
5639 delete_failure_queue ();
5642 /* If this compilation succeeded, don't delete those files later. */
5643 clear_failure_queue ();
5646 /* Reset the output file name to the first input file name, for use
5647 with %b in LINK_SPEC on a target that prefers not to emit a.out
5650 set_input (infiles[0].name);
5652 if (error_count == 0)
5654 /* Make sure INPUT_FILE_NUMBER points to first available open
5656 input_file_number = n_infiles;
5657 if (lang_specific_pre_link ())
5661 /* Run ld to link all the compiler output files. */
5663 if (error_count == 0)
5665 int tmp = execution_count;
5667 /* We'll use ld if we can't find collect2. */
5668 if (! strcmp (linker_name_spec, "collect2"))
5670 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5672 linker_name_spec = "ld";
5674 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5676 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5677 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5679 value = do_spec (link_command_spec);
5682 linker_was_run = (tmp != execution_count);
5685 /* If options said don't run linker,
5686 complain about input files to be given to the linker. */
5688 if (! linker_was_run && error_count == 0)
5689 for (i = 0; (int) i < n_infiles; i++)
5690 if (explicit_link_files[i])
5691 error ("%s: linker input file unused because linking not done",
5694 /* Delete some or all of the temporary files we made. */
5697 delete_failure_queue ();
5698 delete_temp_files ();
5700 if (print_help_list)
5702 printf (("\nFor bug reporting instructions, please see:\n"));
5703 printf ("%s\n", GCCBUGURL);
5706 return (signal_count != 0 ? 2
5707 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5711 /* Find the proper compilation spec for the file name NAME,
5712 whose length is LENGTH. LANGUAGE is the specified language,
5713 or 0 if this file is to be passed to the linker. */
5715 static struct compiler *
5716 lookup_compiler (name, length, language)
5719 const char *language;
5721 struct compiler *cp;
5723 /* If this was specified by the user to be a linker input, indicate that. */
5724 if (language != 0 && language[0] == '*')
5727 /* Otherwise, look for the language, if one is spec'd. */
5730 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5731 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5734 error ("language %s not recognized", language);
5738 /* Look for a suffix. */
5739 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5741 if (/* The suffix `-' matches only the file name `-'. */
5742 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5743 || (strlen (cp->suffix) < length
5744 /* See if the suffix matches the end of NAME. */
5745 && !strcmp (cp->suffix,
5746 name + length - strlen (cp->suffix))
5751 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5752 /* look again, but case-insensitively this time. */
5754 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5756 if (/* The suffix `-' matches only the file name `-'. */
5757 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5758 || (strlen (cp->suffix) < length
5759 /* See if the suffix matches the end of NAME. */
5760 && ((!strcmp (cp->suffix,
5761 name + length - strlen (cp->suffix))
5762 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5763 && !strcasecmp (cp->suffix,
5764 name + length - strlen (cp->suffix)))
5770 if (cp >= compilers)
5772 if (cp->spec[0] != '@')
5773 /* A non-alias entry: return it. */
5776 /* An alias entry maps a suffix to a language.
5777 Search for the language; pass 0 for NAME and LENGTH
5778 to avoid infinite recursion if language not found. */
5779 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5785 save_string (s, len)
5789 register char *result = xmalloc (len + 1);
5791 memcpy (result, s, len);
5797 pfatal_with_name (name)
5800 perror_with_name (name);
5801 delete_temp_files ();
5806 perror_with_name (name)
5809 error ("%s: %s", name, xstrerror (errno));
5813 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5814 const char *errmsg_fmt;
5815 const char *errmsg_arg;
5819 int save_errno = errno;
5821 /* Space for trailing '\0' is in %s. */
5822 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5823 sprintf (msg, errmsg_fmt, errmsg_arg);
5829 pfatal_with_name (errmsg_fmt);
5832 /* Output an error message and exit */
5837 fatal ("Internal gcc abort.");
5840 /* Output an error message and exit */
5843 fatal VPARAMS ((const char *msgid, ...))
5845 #ifndef ANSI_PROTOTYPES
5850 VA_START (ap, msgid);
5852 #ifndef ANSI_PROTOTYPES
5853 msgid = va_arg (ap, const char *);
5856 fprintf (stderr, "%s: ", programname);
5857 vfprintf (stderr, _(msgid), ap);
5859 fprintf (stderr, "\n");
5860 delete_temp_files ();
5865 error VPARAMS ((const char *msgid, ...))
5867 #ifndef ANSI_PROTOTYPES
5872 VA_START (ap, msgid);
5874 #ifndef ANSI_PROTOTYPES
5875 msgid = va_arg (ap, const char *);
5878 fprintf (stderr, "%s: ", programname);
5879 vfprintf (stderr, _(msgid), ap);
5882 fprintf (stderr, "\n");
5886 notice VPARAMS ((const char *msgid, ...))
5888 #ifndef ANSI_PROTOTYPES
5893 VA_START (ap, msgid);
5895 #ifndef ANSI_PROTOTYPES
5896 msgid = va_arg (ap, const char *);
5899 vfprintf (stderr, _(msgid), ap);
5904 validate_all_switches ()
5906 struct compiler *comp;
5907 register const char *p;
5909 struct spec_list *spec;
5911 for (comp = compilers; comp->spec; comp++)
5915 if (c == '%' && *p == '{')
5916 /* We have a switch spec. */
5917 validate_switches (p + 1);
5920 /* Look through the linked list of specs read from the specs file. */
5921 for (spec = specs; spec; spec = spec->next)
5923 p = *(spec->ptr_spec);
5925 if (c == '%' && *p == '{')
5926 /* We have a switch spec. */
5927 validate_switches (p + 1);
5930 p = link_command_spec;
5932 if (c == '%' && *p == '{')
5933 /* We have a switch spec. */
5934 validate_switches (p + 1);
5937 /* Look at the switch-name that comes after START
5938 and mark as valid all supplied switches that match it. */
5941 validate_switches (start)
5944 register const char *p = start;
5961 while (*p != ':' && *p != '}' && *p != '|')
5966 else if (p[-1] == '*')
5968 /* Mark all matching switches as valid. */
5969 for (i = 0; i < n_switches; i++)
5970 if (!strncmp (switches[i].part1, filter, p - filter - 1))
5971 switches[i].validated = 1;
5975 /* Mark an exact matching switch as valid. */
5976 for (i = 0; i < n_switches; i++)
5978 if (!strncmp (switches[i].part1, filter, p - filter)
5979 && switches[i].part1[p - filter] == 0)
5980 switches[i].validated = 1;
5988 /* Check whether a particular argument was used. The first time we
5989 canonicalize the switches to keep only the ones we care about. */
5999 const char *replace;
6004 static struct mswitchstr *mswitches;
6005 static int n_mswitches;
6010 struct mswitchstr *matches;
6014 /* Break multilib_matches into the component strings of string
6015 and replacement string. */
6016 for (q = multilib_matches; *q != '\0'; q++)
6021 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6023 q = multilib_matches;
6033 matches[i].len = q - matches[i].str;
6035 matches[i].replace = ++q;
6036 while (*q != ';' && *q != '\0')
6042 matches[i].rep_len = q - matches[i].replace;
6048 /* Now build a list of the replacement string for switches that we care
6049 about. Make sure we allocate at least one entry. This prevents
6050 xmalloc from calling fatal, and prevents us from re-executing this
6053 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6054 * (n_switches ? n_switches : 1));
6055 for (i = 0; i < n_switches; i++)
6057 int xlen = strlen (switches[i].part1);
6058 for (j = 0; j < cnt; j++)
6059 if (xlen == matches[j].len
6060 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6062 mswitches[n_mswitches].str = matches[j].replace;
6063 mswitches[n_mswitches].len = matches[j].rep_len;
6064 mswitches[n_mswitches].replace = (char *) 0;
6065 mswitches[n_mswitches].rep_len = 0;
6072 for (i = 0; i < n_mswitches; i++)
6073 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6080 default_arg (p, len)
6084 const char *start, *end;
6086 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6088 while (*start == ' ' || *start == '\t')
6094 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6097 if ((end - start) == len && strncmp (p, start, len) == 0)
6107 /* Work out the subdirectory to use based on the options. The format of
6108 multilib_select is a list of elements. Each element is a subdirectory
6109 name followed by a list of options followed by a semicolon. The format
6110 of multilib_exclusions is the same, but without the preceding
6111 directory. First gcc will check the exclusions, if none of the options
6112 beginning with an exclamation point are present, and all of the other
6113 options are present, then we will ignore this completely. Passing
6114 that, gcc will consider each multilib_select in turn using the same
6115 rules for matching the options. If a match is found, that subdirectory
6122 unsigned int this_path_len;
6123 const char *this_path, *this_arg;
6127 p = multilib_exclusions;
6130 /* Ignore newlines. */
6137 /* Check the arguments. */
6151 while (*p != ' ' && *p != ';')
6158 if (*this_arg != '!')
6166 ok = used_arg (this_arg, p - this_arg);
6180 p = multilib_select;
6183 /* Ignore newlines. */
6190 /* Get the initial path. */
6198 this_path_len = p - this_path;
6200 /* Check the arguments. */
6215 while (*p != ' ' && *p != ';')
6222 if (*this_arg != '!')
6230 /* If this is a default argument, we can just ignore it.
6231 This is true even if this_arg begins with '!'. Beginning
6232 with '!' does not mean that this argument is necessarily
6233 inappropriate for this library: it merely means that
6234 there is a more specific library which uses this
6235 argument. If this argument is a default, we need not
6236 consider that more specific library. */
6237 if (! default_arg (this_arg, p - this_arg))
6239 ok = used_arg (this_arg, p - this_arg);
6250 if (this_path_len != 1
6251 || this_path[0] != '.')
6253 char *new_multilib_dir = xmalloc (this_path_len + 1);
6254 strncpy (new_multilib_dir, this_path, this_path_len);
6255 new_multilib_dir[this_path_len] = '\0';
6256 multilib_dir = new_multilib_dir;
6265 /* Print out the multiple library subdirectory selection
6266 information. This prints out a series of lines. Each line looks
6267 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6268 required. Only the desired options are printed out, the negative
6269 matches. The options are print without a leading dash. There are
6270 no spaces to make it easy to use the information in the shell.
6271 Each subdirectory is printed only once. This assumes the ordering
6272 generated by the genmultilib script. Also, we leave out ones that match
6276 print_multilib_info ()
6278 const char *p = multilib_select;
6279 const char *last_path = 0, *this_path;
6281 unsigned int last_path_len = 0;
6286 /* Ignore newlines. */
6293 /* Get the initial path. */
6302 /* Check for matches with the multilib_exclusions. We don't bother
6303 with the '!' in either list. If any of the exclusion rules match
6304 all of its options with the select rule, we skip it. */
6306 const char *e = multilib_exclusions;
6307 const char *this_arg;
6312 /* Ignore newlines. */
6319 /* Check the arguments. */
6336 while (*e != ' ' && *e != ';')
6347 int len = e - this_arg;
6354 while (*q != ' ' && *q != ';')
6361 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6362 default_arg (this_arg, e - this_arg))
6392 /* If this is a duplicate, skip it. */
6393 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6394 && ! strncmp (last_path, this_path, last_path_len));
6396 last_path = this_path;
6397 last_path_len = p - this_path;
6400 /* If this directory requires any default arguments, we can skip
6401 it. We will already have printed a directory identical to
6402 this one which does not require that default argument. */
6420 while (*q != ' ' && *q != ';')
6428 && default_arg (arg, q - arg))
6443 for (p1 = last_path; p1 < p; p1++)
6462 use_arg = *p != '!';
6467 while (*p != ' ' && *p != ';')
6482 /* If there are extra options, print them now. */
6483 if (multilib_extra && *multilib_extra)
6485 int print_at = TRUE;
6488 for (q = multilib_extra; *q != '\0'; q++)