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, -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*&T*} likewise, but preserve order of S and T options (the order
396 of S and T in the spec is not significant). Can be any number
397 of ampersand-separated variables; for each the wild card is
398 optional. Useful for CPP as %{D*&U*&A*}.
399 %{S*:X} substitutes X if one or more switches whose names start with -S are
400 specified to CC. Note that the tail part of the -S option
401 (i.e. the part matched by the `*') will be substituted for each
402 occurrence of %* within X.
403 %{<S} remove all occurences of -S from the command line.
404 Note - this option is position dependent. % commands in the
405 spec string before this option will see -S, % commands in the
406 spec string after this option will not.
407 %{S:X} substitutes X, but only if the -S switch was given to CC.
408 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
409 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
410 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
411 %{.S:X} substitutes X, but only if processing a file with suffix S.
412 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
413 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
414 combined with ! and . as above binding stronger than the OR.
415 %(Spec) processes a specification defined in a specs file as *Spec:
416 %[Spec] as above, but put __ around -D arguments
418 The conditional text X in a %{S:X} or %{!S:X} construct may contain
419 other nested % constructs or spaces, or even newlines. They are
420 processed as usual, as described above.
422 The -O, -f, -m, and -W switches are handled specifically in these
423 constructs. If another value of -O or the negated form of a -f, -m, or
424 -W switch is found later in the command line, the earlier switch
425 value is ignored, except with {S*} where S is just one letter; this
426 passes all matching options.
428 The character | at the beginning of the predicate text is used to indicate
429 that a command should be piped to the following command, but only if -pipe
432 Note that it is built into CC which switches take arguments and which
433 do not. You might think it would be useful to generalize this to
434 allow each compiler's spec to say which switches take arguments. But
435 this cannot be done in a consistent fashion. CC cannot even decide
436 which input files have been specified without knowing which switches
437 take arguments, and it must know which input files to compile in order
438 to tell which compilers to run.
440 CC also knows implicitly that arguments starting in `-l' are to be
441 treated as compiler output files, and passed to the linker in their
442 proper position among the other output files. */
444 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
446 /* config.h can define ASM_SPEC to provide extra args to the assembler
447 or extra switch-translations. */
452 /* config.h can define ASM_FINAL_SPEC to run a post processor after
453 the assembler has run. */
454 #ifndef ASM_FINAL_SPEC
455 #define ASM_FINAL_SPEC ""
458 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
459 or extra switch-translations. */
464 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
465 or extra switch-translations. */
470 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
471 or extra switch-translations. */
473 #define CC1PLUS_SPEC ""
476 /* config.h can define LINK_SPEC to provide extra args to the linker
477 or extra switch-translations. */
482 /* config.h can define LIB_SPEC to override the default libraries. */
484 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
487 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
490 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
491 /* Have gcc do the search for libgcc.a. */
492 #define LIBGCC_SPEC "libgcc.a%s"
494 #define LIBGCC_SPEC "-lgcc"
498 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
499 #ifndef STARTFILE_SPEC
500 #define STARTFILE_SPEC \
501 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
504 /* config.h can define SWITCHES_NEED_SPACES to control which options
505 require spaces between the option and the argument. */
506 #ifndef SWITCHES_NEED_SPACES
507 #define SWITCHES_NEED_SPACES ""
510 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
512 #define ENDFILE_SPEC ""
515 /* This spec is used for telling cpp whether char is signed or not. */
516 #ifndef SIGNED_CHAR_SPEC
517 /* Use #if rather than ?:
518 because MIPS C compiler rejects like ?: in initializers. */
519 #if DEFAULT_SIGNED_CHAR
520 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
522 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
527 #define LINKER_NAME "collect2"
530 /* Here is the spec for running the linker, after compiling all files. */
532 /* -u* was put back because both BSD and SysV seem to support it. */
533 /* %{static:} simply prevents an error message if the target machine
534 doesn't handle -static. */
535 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
536 scripts which exist in user specified directories, or in standard
538 #ifndef LINK_COMMAND_SPEC
539 #define LINK_COMMAND_SPEC "\
540 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
541 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
542 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
543 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
544 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
547 #ifndef LINK_LIBGCC_SPEC
548 # ifdef LINK_LIBGCC_SPECIAL
549 /* Don't generate -L options for startfile prefix list. */
550 # define LINK_LIBGCC_SPEC ""
552 /* Do generate them. */
553 # define LINK_LIBGCC_SPEC "%D"
557 static const char *cpp_spec = CPP_SPEC;
558 static const char *cpp_predefines = CPP_PREDEFINES;
559 static const char *cc1_spec = CC1_SPEC;
560 static const char *cc1plus_spec = CC1PLUS_SPEC;
561 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
562 static const char *asm_spec = ASM_SPEC;
563 static const char *asm_final_spec = ASM_FINAL_SPEC;
564 static const char *link_spec = LINK_SPEC;
565 static const char *lib_spec = LIB_SPEC;
566 static const char *libgcc_spec = LIBGCC_SPEC;
567 static const char *endfile_spec = ENDFILE_SPEC;
568 static const char *startfile_spec = STARTFILE_SPEC;
569 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
570 static const char *linker_name_spec = LINKER_NAME;
571 static const char *link_command_spec = LINK_COMMAND_SPEC;
572 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
574 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
575 There should be no need to override these in target dependent files,
576 but we need to copy them to the specs file so that newer versions
577 of the GCC driver can correctly drive older tool chains with the
578 appropriate -B options. */
580 static const char *trad_capable_cpp =
581 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
583 static const char *cpp_options =
584 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{std*} %{nostdinc*}\
586 %{C} %{v} %{I*} %{P} %{$} %I\
587 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
588 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
589 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
590 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
591 %{ffast-math:-D__FAST_MATH__}\
592 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
593 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
594 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
595 %{fshow-column} %{fno-show-column}\
596 %{fleading-underscore} %{fno-leading-underscore}\
597 %{fno-operator-names} %{ftabstop=*} %{remap}\
598 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
599 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
601 /* NB: This is shared amongst all front-ends. */
602 static const char *cc1_options =
603 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
604 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
605 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
606 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
607 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
608 %{--target-help:--target-help}\
609 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
610 %{fsyntax-only:-o %j}";
612 static const char *asm_options =
613 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
615 static const char *invoke_as =
616 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
618 /* Some compilers have limits on line lengths, and the multilib_select
619 and/or multilib_matches strings can be very long, so we build them at
621 static struct obstack multilib_obstack;
622 static const char *multilib_select;
623 static const char *multilib_matches;
624 static const char *multilib_defaults;
625 static const char *multilib_exclusions;
626 #include "multilib.h"
628 /* Check whether a particular argument is a default argument. */
630 #ifndef MULTILIB_DEFAULTS
631 #define MULTILIB_DEFAULTS { "" }
634 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
638 struct user_specs *next;
639 const char *filename;
642 static struct user_specs *user_specs_head, *user_specs_tail;
644 /* This defines which switch letters take arguments. */
646 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
647 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
648 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
649 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
650 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
651 || (CHAR) == 'B' || (CHAR) == 'b')
653 #ifndef SWITCH_TAKES_ARG
654 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
657 /* This defines which multi-letter switches take arguments. */
659 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
660 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
661 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
662 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
663 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
664 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
665 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
666 || !strcmp (STR, "MF") || !strcmp (STR, "MT"))
668 #ifndef WORD_SWITCH_TAKES_ARG
669 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
672 #ifdef HAVE_EXECUTABLE_SUFFIX
673 /* This defines which switches stop a full compilation. */
674 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
675 ((CHAR) == 'c' || (CHAR) == 'S')
677 #ifndef SWITCH_CURTAILS_COMPILATION
678 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
679 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
683 /* Record the mapping from file suffixes for compilation specs. */
687 const char *suffix; /* Use this compiler for input files
688 whose names end in this suffix. */
690 const char *spec; /* To use this compiler, run this spec. */
693 /* Pointer to a vector of `struct compiler' that gives the spec for
694 compiling a file, based on its suffix.
695 A file that does not end in any of these suffixes will be passed
696 unchanged to the loader and nothing else will be done to it.
698 An entry containing two 0s is used to terminate the vector.
700 If multiple entries match a file, the last matching one is used. */
702 static struct compiler *compilers;
704 /* Number of entries in `compilers', not counting the null terminator. */
706 static int n_compilers;
708 /* The default list of file name suffixes and their compilation specs. */
710 static struct compiler default_compilers[] =
712 /* Add lists of suffixes of known languages here. If those languages
713 were not present when we built the driver, we will hit these copies
714 and be given a more meaningful error than "file not used since
715 linking is not done". */
716 {".m", "#Objective-C"}, {".mi", "#Objective-C"},
717 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".cp", "#C++"},
718 {".c++", "#C++"}, {".C", "#C++"}, {".ii", "#C++"},
719 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
720 {".f", "#Fortran"}, {".for", "#Fortran"}, {".fpp", "#Fortran"},
721 {".F", "#Fortran"}, {".FOR", "#Fortran"}, {".FPP", "#Fortran"},
723 {".p", "#Pascal"}, {".pas", "#Pascal"},
724 {".ch", "#Chill"}, {".chi", "#Chill"},
725 {".java", "#Java"}, {".class", "#Java"},
726 {".zip", "#Java"}, {".jar", "#Java"},
727 /* Next come the entries for C. */
730 /* cc1 has an integrated ISO C preprocessor. We should invoke the
731 external preprocessor if -save-temps or -traditional is given. */
732 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
734 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
735 %(cpp_options) %b.i \n\
736 cc1 -fpreprocessed %b.i %(cc1_options)}\
738 %{traditional|ftraditional|traditional-cpp:\
739 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
740 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
741 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
742 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
743 %{!fsyntax-only:%(invoke_as)}}}}"},
745 "%{!E:%e-E required when input is from standard input}\
746 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
749 "%{!E:%eCompilation of header file requested} \
750 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
751 {".i", "@cpp-output"},
753 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
754 {".s", "@assembler"},
756 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
757 {".S", "@assembler-with-cpp"},
758 {"@assembler-with-cpp",
759 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
760 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
762 /* Mark end of table */
766 /* Number of elements in default_compilers, not counting the terminator. */
768 static int n_default_compilers
769 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
771 /* A vector of options to give to the linker.
772 These options are accumulated by %x,
773 and substituted into the linker command with %X. */
774 static int n_linker_options;
775 static char **linker_options;
777 /* A vector of options to give to the assembler.
778 These options are accumulated by -Wa,
779 and substituted into the assembler command with %Y. */
780 static int n_assembler_options;
781 static char **assembler_options;
783 /* A vector of options to give to the preprocessor.
784 These options are accumulated by -Wp,
785 and substituted into the preprocessor command with %Z. */
786 static int n_preprocessor_options;
787 static char **preprocessor_options;
789 /* Define how to map long options into short ones. */
791 /* This structure describes one mapping. */
794 /* The long option's name. */
796 /* The equivalent short option. */
797 const char *equivalent;
798 /* Argument info. A string of flag chars; NULL equals no options.
799 a => argument required.
800 o => argument optional.
801 j => join argument to equivalent, making one word.
802 * => require other text after NAME as an argument. */
803 const char *arg_info;
806 /* This is the table of mappings. Mappings are tried sequentially
807 for each option encountered; the first one that matches, wins. */
809 struct option_map option_map[] =
811 {"--all-warnings", "-Wall", 0},
812 {"--ansi", "-ansi", 0},
813 {"--assemble", "-S", 0},
814 {"--assert", "-A", "a"},
815 {"--classpath", "-fclasspath=", "aj"},
816 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
817 {"--comments", "-C", 0},
818 {"--compile", "-c", 0},
819 {"--debug", "-g", "oj"},
820 {"--define-macro", "-D", "aj"},
821 {"--dependencies", "-M", 0},
822 {"--dump", "-d", "a"},
823 {"--dumpbase", "-dumpbase", "a"},
824 {"--entry", "-e", 0},
825 {"--extra-warnings", "-W", 0},
826 {"--for-assembler", "-Wa", "a"},
827 {"--for-linker", "-Xlinker", "a"},
828 {"--force-link", "-u", "a"},
829 {"--imacros", "-imacros", "a"},
830 {"--include", "-include", "a"},
831 {"--include-barrier", "-I-", 0},
832 {"--include-directory", "-I", "aj"},
833 {"--include-directory-after", "-idirafter", "a"},
834 {"--include-prefix", "-iprefix", "a"},
835 {"--include-with-prefix", "-iwithprefix", "a"},
836 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
837 {"--include-with-prefix-after", "-iwithprefix", "a"},
838 {"--language", "-x", "a"},
839 {"--library-directory", "-L", "a"},
840 {"--machine", "-m", "aj"},
841 {"--machine-", "-m", "*j"},
842 {"--no-line-commands", "-P", 0},
843 {"--no-precompiled-includes", "-noprecomp", 0},
844 {"--no-standard-includes", "-nostdinc", 0},
845 {"--no-standard-libraries", "-nostdlib", 0},
846 {"--no-warnings", "-w", 0},
847 {"--optimize", "-O", "oj"},
848 {"--output", "-o", "a"},
849 {"--output-class-directory", "-foutput-class-dir=", "ja"},
850 {"--pedantic", "-pedantic", 0},
851 {"--pedantic-errors", "-pedantic-errors", 0},
852 {"--pipe", "-pipe", 0},
853 {"--prefix", "-B", "a"},
854 {"--preprocess", "-E", 0},
855 {"--print-search-dirs", "-print-search-dirs", 0},
856 {"--print-file-name", "-print-file-name=", "aj"},
857 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
858 {"--print-missing-file-dependencies", "-MG", 0},
859 {"--print-multi-lib", "-print-multi-lib", 0},
860 {"--print-multi-directory", "-print-multi-directory", 0},
861 {"--print-prog-name", "-print-prog-name=", "aj"},
862 {"--profile", "-p", 0},
863 {"--profile-blocks", "-a", 0},
864 {"--quiet", "-q", 0},
865 {"--save-temps", "-save-temps", 0},
866 {"--shared", "-shared", 0},
867 {"--silent", "-q", 0},
868 {"--specs", "-specs=", "aj"},
869 {"--static", "-static", 0},
870 {"--std", "-std=", "aj"},
871 {"--symbolic", "-symbolic", 0},
872 {"--target", "-b", "a"},
873 {"--time", "-time", 0},
874 {"--trace-includes", "-H", 0},
875 {"--traditional", "-traditional", 0},
876 {"--traditional-cpp", "-traditional-cpp", 0},
877 {"--trigraphs", "-trigraphs", 0},
878 {"--undefine-macro", "-U", "aj"},
879 {"--use-version", "-V", "a"},
880 {"--user-dependencies", "-MM", 0},
881 {"--verbose", "-v", 0},
882 {"--version", "-dumpversion", 0},
883 {"--warn-", "-W", "*j"},
884 {"--write-dependencies", "-MD", 0},
885 {"--write-user-dependencies", "-MMD", 0},
889 /* Translate the options described by *ARGCP and *ARGVP.
890 Make a new vector and store it back in *ARGVP,
891 and store its length in *ARGVC. */
894 translate_options (argcp, argvp)
896 const char *const **argvp;
900 const char *const *argv = *argvp;
902 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
906 newv[newindex++] = argv[i++];
910 /* Translate -- options. */
911 if (argv[i][0] == '-' && argv[i][1] == '-')
914 /* Find a mapping that applies to this option. */
915 for (j = 0; j < ARRAY_SIZE (option_map); j++)
917 size_t optlen = strlen (option_map[j].name);
918 size_t arglen = strlen (argv[i]);
919 size_t complen = arglen > optlen ? optlen : arglen;
920 const char *arginfo = option_map[j].arg_info;
925 if (!strncmp (argv[i], option_map[j].name, complen))
932 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
933 if (strlen (option_map[k].name) >= arglen
934 && !strncmp (argv[i], option_map[k].name, arglen))
936 error ("Ambiguous abbreviation %s", argv[i]);
940 if (k != ARRAY_SIZE (option_map))
946 /* If the option has an argument, accept that. */
947 if (argv[i][optlen] == '=')
948 arg = argv[i] + optlen + 1;
950 /* If this mapping requires extra text at end of name,
951 accept that as "argument". */
952 else if (strchr (arginfo, '*') != 0)
953 arg = argv[i] + optlen;
955 /* Otherwise, extra text at end means mismatch.
956 Try other mappings. */
961 else if (strchr (arginfo, '*') != 0)
963 error ("Incomplete `%s' option", option_map[j].name);
967 /* Handle arguments. */
968 if (strchr (arginfo, 'a') != 0)
974 error ("Missing argument to `%s' option",
982 else if (strchr (arginfo, '*') != 0)
984 else if (strchr (arginfo, 'o') == 0)
987 error ("Extraneous argument to `%s' option",
992 /* Store the translation as one argv elt or as two. */
993 if (arg != 0 && strchr (arginfo, 'j') != 0)
994 newv[newindex++] = concat (option_map[j].equivalent, arg,
998 newv[newindex++] = option_map[j].equivalent;
999 newv[newindex++] = arg;
1002 newv[newindex++] = option_map[j].equivalent;
1010 /* Handle old-fashioned options--just copy them through,
1011 with their arguments. */
1012 else if (argv[i][0] == '-')
1014 const char *p = argv[i] + 1;
1018 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1019 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1020 else if (WORD_SWITCH_TAKES_ARG (p))
1021 nskip += WORD_SWITCH_TAKES_ARG (p);
1022 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1025 else if (! strcmp (p, "Xlinker"))
1028 /* Watch out for an option at the end of the command line that
1029 is missing arguments, and avoid skipping past the end of the
1031 if (nskip + i > argc)
1036 newv[newindex++] = argv[i++];
1041 /* Ordinary operands, or +e options. */
1042 newv[newindex++] = argv[i++];
1057 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1058 be considered whitespace. */
1059 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1061 else if (*p == '\n' || *p == ' ' || *p == '\t')
1075 /* Structures to keep track of prefixes to try when looking for files. */
1079 char *prefix; /* String to prepend to the path. */
1080 struct prefix_list *next; /* Next in linked list. */
1081 int require_machine_suffix; /* Don't use without machine_suffix. */
1082 /* 2 means try both machine_suffix and just_machine_suffix. */
1083 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1084 int priority; /* Sort key - priority within list */
1089 struct prefix_list *plist; /* List of prefixes to try */
1090 int max_len; /* Max length of a prefix in PLIST */
1091 const char *name; /* Name of this list (used in config stuff) */
1094 /* List of prefixes to try when looking for executables. */
1096 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1098 /* List of prefixes to try when looking for startup (crt0) files. */
1100 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1102 /* List of prefixes to try when looking for include files. */
1104 static struct path_prefix include_prefixes = { 0, 0, "include" };
1106 /* Suffix to attach to directories searched for commands.
1107 This looks like `MACHINE/VERSION/'. */
1109 static const char *machine_suffix = 0;
1111 /* Suffix to attach to directories searched for commands.
1112 This is just `MACHINE/'. */
1114 static const char *just_machine_suffix = 0;
1116 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1118 static const char *gcc_exec_prefix;
1120 /* Default prefixes to attach to command names. */
1122 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1123 #undef MD_EXEC_PREFIX
1124 #undef MD_STARTFILE_PREFIX
1125 #undef MD_STARTFILE_PREFIX_1
1128 /* If no prefixes defined, use the null string, which will disable them. */
1129 #ifndef MD_EXEC_PREFIX
1130 #define MD_EXEC_PREFIX ""
1132 #ifndef MD_STARTFILE_PREFIX
1133 #define MD_STARTFILE_PREFIX ""
1135 #ifndef MD_STARTFILE_PREFIX_1
1136 #define MD_STARTFILE_PREFIX_1 ""
1139 /* Supply defaults for the standard prefixes. */
1141 #ifndef STANDARD_EXEC_PREFIX
1142 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1144 #ifndef STANDARD_STARTFILE_PREFIX
1145 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1147 #ifndef TOOLDIR_BASE_PREFIX
1148 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1150 #ifndef STANDARD_BINDIR_PREFIX
1151 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1154 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1155 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1156 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1158 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1159 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1160 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1161 static const char *standard_startfile_prefix_1 = "/lib/";
1162 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1164 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1165 static const char *tooldir_prefix;
1167 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1169 /* Subdirectory to use for locating libraries. Set by
1170 set_multilib_dir based on the compilation options. */
1172 static const char *multilib_dir;
1174 /* Structure to keep track of the specs that have been defined so far.
1175 These are accessed using %(specname) or %[specname] in a compiler
1180 /* The following 2 fields must be first */
1181 /* to allow EXTRA_SPECS to be initialized */
1182 const char *name; /* name of the spec. */
1183 const char *ptr; /* available ptr if no static pointer */
1185 /* The following fields are not initialized */
1186 /* by EXTRA_SPECS */
1187 const char **ptr_spec; /* pointer to the spec itself. */
1188 struct spec_list *next; /* Next spec in linked list. */
1189 int name_len; /* length of the name */
1190 int alloc_p; /* whether string was allocated */
1193 #define INIT_STATIC_SPEC(NAME,PTR) \
1194 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1196 /* List of statically defined specs. */
1197 static struct spec_list static_specs[] =
1199 INIT_STATIC_SPEC ("asm", &asm_spec),
1200 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1201 INIT_STATIC_SPEC ("asm_options", &asm_options),
1202 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1203 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1204 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1205 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1206 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1207 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1208 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1209 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1210 INIT_STATIC_SPEC ("link", &link_spec),
1211 INIT_STATIC_SPEC ("lib", &lib_spec),
1212 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1213 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1214 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1215 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1216 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1217 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1218 INIT_STATIC_SPEC ("version", &compiler_version),
1219 INIT_STATIC_SPEC ("multilib", &multilib_select),
1220 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1221 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1222 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1223 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1224 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1225 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1226 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1227 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1228 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1231 #ifdef EXTRA_SPECS /* additional specs needed */
1232 /* Structure to keep track of just the first two args of a spec_list.
1233 That is all that the EXTRA_SPECS macro gives us. */
1240 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1241 static struct spec_list *extra_specs = (struct spec_list *) 0;
1244 /* List of dynamically allocates specs that have been defined so far. */
1246 static struct spec_list *specs = (struct spec_list *) 0;
1248 /* Initialize the specs lookup routines. */
1253 struct spec_list *next = (struct spec_list *) 0;
1254 struct spec_list *sl = (struct spec_list *) 0;
1258 return; /* Already initialized. */
1261 notice ("Using builtin specs.\n");
1264 extra_specs = (struct spec_list *)
1265 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1267 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1269 sl = &extra_specs[i];
1270 sl->name = extra_specs_1[i].name;
1271 sl->ptr = extra_specs_1[i].ptr;
1273 sl->name_len = strlen (sl->name);
1274 sl->ptr_spec = &sl->ptr;
1279 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1281 sl = &static_specs[i];
1289 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1290 removed; If the spec starts with a + then SPEC is added to the end of the
1294 set_spec (name, spec)
1298 struct spec_list *sl;
1299 const char *old_spec;
1300 int name_len = strlen (name);
1303 /* If this is the first call, initialize the statically allocated specs. */
1306 struct spec_list *next = (struct spec_list *) 0;
1307 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1309 sl = &static_specs[i];
1316 /* See if the spec already exists. */
1317 for (sl = specs; sl; sl = sl->next)
1318 if (name_len == sl->name_len && !strcmp (sl->name, name))
1323 /* Not found - make it. */
1324 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1325 sl->name = xstrdup (name);
1326 sl->name_len = name_len;
1327 sl->ptr_spec = &sl->ptr;
1329 *(sl->ptr_spec) = "";
1334 old_spec = *(sl->ptr_spec);
1335 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1336 ? concat (old_spec, spec + 1, NULL_PTR)
1341 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1344 /* Free the old spec. */
1345 if (old_spec && sl->alloc_p)
1346 free ((PTR) old_spec);
1351 /* Accumulate a command (program name and args), and run it. */
1353 /* Vector of pointers to arguments in the current line of specifications. */
1355 static const char **argbuf;
1357 /* Number of elements allocated in argbuf. */
1359 static int argbuf_length;
1361 /* Number of elements in argbuf currently in use (containing args). */
1363 static int argbuf_index;
1365 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1366 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1369 static struct temp_name {
1370 const char *suffix; /* suffix associated with the code. */
1371 int length; /* strlen (suffix). */
1372 int unique; /* Indicates whether %g or %u/%U was used. */
1373 const char *filename; /* associated filename. */
1374 int filename_length; /* strlen (filename). */
1375 struct temp_name *next;
1378 /* Number of commands executed so far. */
1380 static int execution_count;
1382 /* Number of commands that exited with a signal. */
1384 static int signal_count;
1386 /* Name with which this program was invoked. */
1388 static const char *programname;
1390 /* Clear out the vector of arguments (after a command is executed). */
1398 /* Add one argument to the vector at the end.
1399 This is done when a space is seen or at the end of the line.
1400 If DELETE_ALWAYS is nonzero, the arg is a filename
1401 and the file should be deleted eventually.
1402 If DELETE_FAILURE is nonzero, the arg is a filename
1403 and the file should be deleted if this compilation fails. */
1406 store_arg (arg, delete_always, delete_failure)
1408 int delete_always, delete_failure;
1410 if (argbuf_index + 1 == argbuf_length)
1412 = (const char **) xrealloc (argbuf,
1413 (argbuf_length *= 2) * sizeof (const char *));
1415 argbuf[argbuf_index++] = arg;
1416 argbuf[argbuf_index] = 0;
1418 if (delete_always || delete_failure)
1419 record_temp_file (arg, delete_always, delete_failure);
1422 /* Load specs from a file name named FILENAME, replacing occurances of
1423 various different types of line-endings, \r\n, \n\r and just \r, with
1427 load_specs (filename)
1428 const char *filename;
1432 struct stat statbuf;
1439 notice ("Reading specs from %s\n", filename);
1441 /* Open and stat the file. */
1442 desc = open (filename, O_RDONLY, 0);
1444 pfatal_with_name (filename);
1445 if (stat (filename, &statbuf) < 0)
1446 pfatal_with_name (filename);
1448 /* Read contents of file into BUFFER. */
1449 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1450 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1452 pfatal_with_name (filename);
1453 buffer[readlen] = 0;
1456 specs = xmalloc (readlen + 1);
1458 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1464 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1466 else if (*(buffer_p + 1) == '\n') /* \r\n */
1480 /* Read compilation specs from a file named FILENAME,
1481 replacing the default ones.
1483 A suffix which starts with `*' is a definition for
1484 one of the machine-specific sub-specs. The "suffix" should be
1485 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1486 The corresponding spec is stored in asm_spec, etc.,
1487 rather than in the `compilers' vector.
1489 Anything invalid in the file is a fatal error. */
1492 read_specs (filename, main_p)
1493 const char *filename;
1499 buffer = load_specs (filename);
1501 /* Scan BUFFER for specs, putting them in the vector. */
1507 char *in, *out, *p1, *p2, *p3;
1509 /* Advance P in BUFFER to the next nonblank nocomment line. */
1510 p = skip_whitespace (p);
1514 /* Is this a special command that starts with '%'? */
1515 /* Don't allow this for the main specs file, since it would
1516 encourage people to overwrite it. */
1517 if (*p == '%' && !main_p)
1520 while (*p && *p != '\n')
1526 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1527 && (p1[sizeof "%include" - 1] == ' '
1528 || p1[sizeof "%include" - 1] == '\t'))
1532 p1 += sizeof ("%include");
1533 while (*p1 == ' ' || *p1 == '\t')
1536 if (*p1++ != '<' || p[-2] != '>')
1537 fatal ("specs %%include syntax malformed after %ld characters",
1538 (long) (p1 - buffer + 1));
1541 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1542 read_specs (new_filename ? new_filename : p1, FALSE);
1545 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1546 && (p1[sizeof "%include_noerr" - 1] == ' '
1547 || p1[sizeof "%include_noerr" - 1] == '\t'))
1551 p1 += sizeof "%include_noerr";
1552 while (*p1 == ' ' || *p1 == '\t')
1555 if (*p1++ != '<' || p[-2] != '>')
1556 fatal ("specs %%include syntax malformed after %ld characters",
1557 (long) (p1 - buffer + 1));
1560 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1562 read_specs (new_filename, FALSE);
1563 else if (verbose_flag)
1564 notice ("Could not find specs file %s\n", p1);
1567 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1568 && (p1[sizeof "%rename" - 1] == ' '
1569 || p1[sizeof "%rename" - 1] == '\t'))
1572 struct spec_list *sl;
1574 /* Get original name */
1575 p1 += sizeof "%rename";
1576 while (*p1 == ' ' || *p1 == '\t')
1579 if (! ISALPHA ((unsigned char) *p1))
1580 fatal ("specs %%rename syntax malformed after %ld characters",
1581 (long) (p1 - buffer));
1584 while (*p2 && !ISSPACE ((unsigned char) *p2))
1587 if (*p2 != ' ' && *p2 != '\t')
1588 fatal ("specs %%rename syntax malformed after %ld characters",
1589 (long) (p2 - buffer));
1593 while (*p2 == ' ' || *p2 == '\t')
1596 if (! ISALPHA ((unsigned char) *p2))
1597 fatal ("specs %%rename syntax malformed after %ld characters",
1598 (long) (p2 - buffer));
1600 /* Get new spec name. */
1602 while (*p3 && !ISSPACE ((unsigned char) *p3))
1606 fatal ("specs %%rename syntax malformed after %ld characters",
1607 (long) (p3 - buffer));
1610 for (sl = specs; sl; sl = sl->next)
1611 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1615 fatal ("specs %s spec was not found to be renamed", p1);
1617 if (strcmp (p1, p2) == 0)
1622 notice ("rename spec %s to %s\n", p1, p2);
1624 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1628 set_spec (p2, *(sl->ptr_spec));
1630 free ((PTR) *(sl->ptr_spec));
1632 *(sl->ptr_spec) = "";
1637 fatal ("specs unknown %% command after %ld characters",
1638 (long) (p1 - buffer));
1641 /* Find the colon that should end the suffix. */
1643 while (*p1 && *p1 != ':' && *p1 != '\n')
1646 /* The colon shouldn't be missing. */
1648 fatal ("specs file malformed after %ld characters",
1649 (long) (p1 - buffer));
1651 /* Skip back over trailing whitespace. */
1653 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1656 /* Copy the suffix to a string. */
1657 suffix = save_string (p, p2 - p);
1658 /* Find the next line. */
1659 p = skip_whitespace (p1 + 1);
1661 fatal ("specs file malformed after %ld characters",
1662 (long) (p - buffer));
1665 /* Find next blank line or end of string. */
1666 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1669 /* Specs end at the blank line and do not include the newline. */
1670 spec = save_string (p, p1 - p);
1673 /* Delete backslash-newline sequences from the spec. */
1678 if (in[0] == '\\' && in[1] == '\n')
1680 else if (in[0] == '#')
1681 while (*in && *in != '\n')
1689 if (suffix[0] == '*')
1691 if (! strcmp (suffix, "*link_command"))
1692 link_command_spec = spec;
1694 set_spec (suffix + 1, spec);
1698 /* Add this pair to the vector. */
1700 = ((struct compiler *)
1701 xrealloc (compilers,
1702 (n_compilers + 2) * sizeof (struct compiler)));
1704 compilers[n_compilers].suffix = suffix;
1705 compilers[n_compilers].spec = spec;
1707 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1711 link_command_spec = spec;
1714 if (link_command_spec == 0)
1715 fatal ("spec file has no spec for linking");
1718 /* Record the names of temporary files we tell compilers to write,
1719 and delete them at the end of the run. */
1721 /* This is the common prefix we use to make temp file names.
1722 It is chosen once for each run of this program.
1723 It is substituted into a spec by %g or %j.
1724 Thus, all temp file names contain this prefix.
1725 In practice, all temp file names start with this prefix.
1727 This prefix comes from the envvar TMPDIR if it is defined;
1728 otherwise, from the P_tmpdir macro if that is defined;
1729 otherwise, in /usr/tmp or /tmp;
1730 or finally the current directory if all else fails. */
1732 static const char *temp_filename;
1734 /* Length of the prefix. */
1736 static int temp_filename_length;
1738 /* Define the list of temporary files to delete. */
1743 struct temp_file *next;
1746 /* Queue of files to delete on success or failure of compilation. */
1747 static struct temp_file *always_delete_queue;
1748 /* Queue of files to delete on failure of compilation. */
1749 static struct temp_file *failure_delete_queue;
1751 /* Record FILENAME as a file to be deleted automatically.
1752 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1753 otherwise delete it in any case.
1754 FAIL_DELETE nonzero means delete it if a compilation step fails;
1755 otherwise delete it in any case. */
1758 record_temp_file (filename, always_delete, fail_delete)
1759 const char *filename;
1763 register char *const name = xstrdup (filename);
1767 register struct temp_file *temp;
1768 for (temp = always_delete_queue; temp; temp = temp->next)
1769 if (! strcmp (name, temp->name))
1772 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1773 temp->next = always_delete_queue;
1775 always_delete_queue = temp;
1782 register struct temp_file *temp;
1783 for (temp = failure_delete_queue; temp; temp = temp->next)
1784 if (! strcmp (name, temp->name))
1787 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1788 temp->next = failure_delete_queue;
1790 failure_delete_queue = temp;
1796 /* Delete all the temporary files whose names we previously recorded. */
1799 delete_if_ordinary (name)
1806 printf ("Delete %s? (y or n) ", name);
1810 while ((c = getchar ()) != '\n' && c != EOF)
1813 if (i == 'y' || i == 'Y')
1815 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1816 if (unlink (name) < 0)
1818 perror_with_name (name);
1822 delete_temp_files ()
1824 register struct temp_file *temp;
1826 for (temp = always_delete_queue; temp; temp = temp->next)
1827 delete_if_ordinary (temp->name);
1828 always_delete_queue = 0;
1831 /* Delete all the files to be deleted on error. */
1834 delete_failure_queue ()
1836 register struct temp_file *temp;
1838 for (temp = failure_delete_queue; temp; temp = temp->next)
1839 delete_if_ordinary (temp->name);
1843 clear_failure_queue ()
1845 failure_delete_queue = 0;
1848 /* Routine to add variables to the environment. We do this to pass
1849 the pathname of the gcc driver, and the directories search to the
1850 collect2 program, which is being run as ld. This way, we can be
1851 sure of executing the right compiler when collect2 wants to build
1852 constructors and destructors. Since the environment variables we
1853 use come from an obstack, we don't have to worry about allocating
1862 #ifndef VMS /* nor about VMS */
1864 extern char **environ;
1865 char **old_environ = environ;
1869 int str_len = strlen (str);
1873 while ((ch = *p++) != '\0' && ch != '=')
1879 /* Search for replacing an existing environment variable, and
1880 count the number of total environment variables. */
1881 for (envp = old_environ; *envp; envp++)
1884 if (!strncmp (str, *envp, name_len))
1891 /* Add a new environment variable */
1892 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
1894 memcpy ((char *) (environ + 1), (char *) old_environ,
1895 sizeof (char *) * (num_envs + 1));
1900 #endif /* HAVE_PUTENV */
1902 /* Build a list of search directories from PATHS.
1903 PREFIX is a string to prepend to the list.
1904 If CHECK_DIR_P is non-zero we ensure the directory exists.
1905 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1906 It is also used by the --print-search-dirs flag. */
1909 build_search_list (paths, prefix, check_dir_p)
1910 struct path_prefix *paths;
1914 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1916 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1917 int first_time = TRUE;
1918 struct prefix_list *pprefix;
1920 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1921 obstack_1grow (&collect_obstack, '=');
1923 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1925 int len = strlen (pprefix->prefix);
1929 || is_directory (pprefix->prefix, machine_suffix, 0)))
1932 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1935 obstack_grow (&collect_obstack, pprefix->prefix, len);
1936 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1939 if (just_machine_suffix
1940 && pprefix->require_machine_suffix == 2
1942 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1945 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1948 obstack_grow (&collect_obstack, pprefix->prefix, len);
1949 obstack_grow (&collect_obstack, just_machine_suffix,
1953 if (! pprefix->require_machine_suffix)
1956 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1959 obstack_grow (&collect_obstack, pprefix->prefix, len);
1963 obstack_1grow (&collect_obstack, '\0');
1964 return obstack_finish (&collect_obstack);
1967 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1971 putenv_from_prefixes (paths, env_var)
1972 struct path_prefix *paths;
1973 const char *env_var;
1975 putenv (build_search_list (paths, env_var, 1));
1980 /* FIXME: the location independence code for VMS is hairier than this,
1981 and hasn't been written. */
1983 /* Split a filename into component directories. */
1986 split_directories (name, ptr_num_dirs)
1995 /* Count the number of directories. Special case MSDOS disk names as part
1996 of the initial directory. */
1998 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1999 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2004 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2006 while ((ch = *p++) != '\0')
2008 if (IS_DIR_SEPARATOR (ch))
2011 while (IS_DIR_SEPARATOR (*p))
2016 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2018 /* Now copy the directory parts. */
2021 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2022 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2024 dirs[num_dirs++] = save_string (p, 3);
2027 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2030 while ((ch = *p++) != '\0')
2032 if (IS_DIR_SEPARATOR (ch))
2034 while (IS_DIR_SEPARATOR (*p))
2037 dirs[num_dirs++] = save_string (q, p - q);
2043 dirs[num_dirs++] = save_string (q, p - 1 - q);
2045 dirs[num_dirs] = NULL_PTR;
2047 *ptr_num_dirs = num_dirs;
2052 /* Release storage held by split directories. */
2055 free_split_directories (dirs)
2060 while (dirs[i] != NULL_PTR)
2063 free ((char *) dirs);
2066 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2067 to PREFIX starting with the directory portion of PROGNAME and a relative
2068 pathname of the difference between BIN_PREFIX and PREFIX.
2070 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2071 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2072 function will return /red/green/blue/../omega.
2074 If no relative prefix can be found, return NULL. */
2077 make_relative_prefix (progname, bin_prefix, prefix)
2078 const char *progname;
2079 const char *bin_prefix;
2082 char **prog_dirs, **bin_dirs, **prefix_dirs;
2083 int prog_num, bin_num, prefix_num, std_loc_p;
2086 prog_dirs = split_directories (progname, &prog_num);
2087 bin_dirs = split_directories (bin_prefix, &bin_num);
2089 /* If there is no full pathname, try to find the program by checking in each
2090 of the directories specified in the PATH environment variable. */
2095 GET_ENV_PATH_LIST (temp, "PATH");
2098 char *startp, *endp;
2099 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2101 startp = endp = temp;
2104 if (*endp == PATH_SEPARATOR || *endp == 0)
2109 nstore[1] = DIR_SEPARATOR;
2114 strncpy (nstore, startp, endp - startp);
2115 if (! IS_DIR_SEPARATOR (endp[-1]))
2117 nstore[endp - startp] = DIR_SEPARATOR;
2118 nstore[endp - startp + 1] = 0;
2121 nstore[endp - startp] = 0;
2123 strcat (nstore, progname);
2124 if (! access (nstore, X_OK)
2125 #ifdef HAVE_EXECUTABLE_SUFFIX
2126 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2130 free_split_directories (prog_dirs);
2132 prog_dirs = split_directories (progname, &prog_num);
2138 endp = startp = endp + 1;
2146 /* Remove the program name from comparison of directory names. */
2149 /* Determine if the compiler is installed in the standard location, and if
2150 so, we don't need to specify relative directories. Also, if argv[0]
2151 doesn't contain any directory specifiers, there is not much we can do. */
2153 if (prog_num == bin_num)
2155 for (i = 0; i < bin_num; i++)
2157 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2161 if (prog_num <= 0 || i == bin_num)
2164 free_split_directories (prog_dirs);
2165 free_split_directories (bin_dirs);
2166 prog_dirs = bin_dirs = (char **) 0;
2171 prefix_dirs = split_directories (prefix, &prefix_num);
2173 /* Find how many directories are in common between bin_prefix & prefix. */
2174 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2175 for (common = 0; common < n; common++)
2177 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2181 /* If there are no common directories, there can be no relative prefix. */
2184 free_split_directories (prog_dirs);
2185 free_split_directories (bin_dirs);
2186 free_split_directories (prefix_dirs);
2190 /* Build up the pathnames in argv[0]. */
2191 for (i = 0; i < prog_num; i++)
2192 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2194 /* Now build up the ..'s. */
2195 for (i = common; i < n; i++)
2197 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2198 obstack_1grow (&obstack, DIR_SEPARATOR);
2201 /* Put in directories to move over to prefix. */
2202 for (i = common; i < prefix_num; i++)
2203 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2205 free_split_directories (prog_dirs);
2206 free_split_directories (bin_dirs);
2207 free_split_directories (prefix_dirs);
2209 obstack_1grow (&obstack, '\0');
2210 return obstack_finish (&obstack);
2214 /* Check whether NAME can be accessed in MODE. This is like access,
2215 except that it never considers directories to be executable. */
2218 access_check (name, mode)
2226 if (stat (name, &st) < 0
2227 || S_ISDIR (st.st_mode))
2231 return access (name, mode);
2234 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2235 access to check permissions.
2236 Return 0 if not found, otherwise return its name, allocated with malloc. */
2239 find_a_file (pprefix, name, mode)
2240 struct path_prefix *pprefix;
2245 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2246 struct prefix_list *pl;
2247 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2249 #ifdef DEFAULT_ASSEMBLER
2250 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2251 return xstrdup (DEFAULT_ASSEMBLER);
2254 #ifdef DEFAULT_LINKER
2255 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2256 return xstrdup (DEFAULT_LINKER);
2260 len += strlen (machine_suffix);
2262 temp = xmalloc (len);
2264 /* Determine the filename to execute (special case for absolute paths). */
2266 if (IS_ABSOLUTE_PATHNAME (name))
2268 if (access (name, mode) == 0)
2270 strcpy (temp, name);
2275 for (pl = pprefix->plist; pl; pl = pl->next)
2279 /* Some systems have a suffix for executable files.
2280 So try appending that first. */
2281 if (file_suffix[0] != 0)
2283 strcpy (temp, pl->prefix);
2284 strcat (temp, machine_suffix);
2285 strcat (temp, name);
2286 strcat (temp, file_suffix);
2287 if (access_check (temp, mode) == 0)
2289 if (pl->used_flag_ptr != 0)
2290 *pl->used_flag_ptr = 1;
2295 /* Now try just the name. */
2296 strcpy (temp, pl->prefix);
2297 strcat (temp, machine_suffix);
2298 strcat (temp, name);
2299 if (access_check (temp, mode) == 0)
2301 if (pl->used_flag_ptr != 0)
2302 *pl->used_flag_ptr = 1;
2307 /* Certain prefixes are tried with just the machine type,
2308 not the version. This is used for finding as, ld, etc. */
2309 if (just_machine_suffix && pl->require_machine_suffix == 2)
2311 /* Some systems have a suffix for executable files.
2312 So try appending that first. */
2313 if (file_suffix[0] != 0)
2315 strcpy (temp, pl->prefix);
2316 strcat (temp, just_machine_suffix);
2317 strcat (temp, name);
2318 strcat (temp, file_suffix);
2319 if (access_check (temp, mode) == 0)
2321 if (pl->used_flag_ptr != 0)
2322 *pl->used_flag_ptr = 1;
2327 strcpy (temp, pl->prefix);
2328 strcat (temp, just_machine_suffix);
2329 strcat (temp, name);
2330 if (access_check (temp, mode) == 0)
2332 if (pl->used_flag_ptr != 0)
2333 *pl->used_flag_ptr = 1;
2338 /* Certain prefixes can't be used without the machine suffix
2339 when the machine or version is explicitly specified. */
2340 if (! pl->require_machine_suffix)
2342 /* Some systems have a suffix for executable files.
2343 So try appending that first. */
2344 if (file_suffix[0] != 0)
2346 strcpy (temp, pl->prefix);
2347 strcat (temp, name);
2348 strcat (temp, file_suffix);
2349 if (access_check (temp, mode) == 0)
2351 if (pl->used_flag_ptr != 0)
2352 *pl->used_flag_ptr = 1;
2357 strcpy (temp, pl->prefix);
2358 strcat (temp, name);
2359 if (access_check (temp, mode) == 0)
2361 if (pl->used_flag_ptr != 0)
2362 *pl->used_flag_ptr = 1;
2372 /* Ranking of prefixes in the sort list. -B prefixes are put before
2375 enum path_prefix_priority
2377 PREFIX_PRIORITY_B_OPT,
2378 PREFIX_PRIORITY_LAST
2381 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2382 order according to PRIORITY. Within each PRIORITY, new entries are
2385 If WARN is nonzero, we will warn if no file is found
2386 through this prefix. WARN should point to an int
2387 which will be set to 1 if this entry is used.
2389 COMPONENT is the value to be passed to update_path.
2391 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2392 the complete value of machine_suffix.
2393 2 means try both machine_suffix and just_machine_suffix. */
2396 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2397 struct path_prefix *pprefix;
2399 const char *component;
2400 /* enum prefix_priority */ int priority;
2401 int require_machine_suffix;
2404 struct prefix_list *pl, **prev;
2407 for (prev = &pprefix->plist;
2408 (*prev) != NULL && (*prev)->priority <= priority;
2409 prev = &(*prev)->next)
2412 /* Keep track of the longest prefix */
2414 prefix = update_path (prefix, component);
2415 len = strlen (prefix);
2416 if (len > pprefix->max_len)
2417 pprefix->max_len = len;
2419 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2420 pl->prefix = save_string (prefix, len);
2421 pl->require_machine_suffix = require_machine_suffix;
2422 pl->used_flag_ptr = warn;
2423 pl->priority = priority;
2427 /* Insert after PREV */
2432 /* Execute the command specified by the arguments on the current line of spec.
2433 When using pipes, this includes several piped-together commands
2434 with `|' between them.
2436 Return 0 if successful, -1 if failed. */
2442 int n_commands; /* # of command. */
2446 const char *prog; /* program name. */
2447 const char **argv; /* vector of args. */
2448 int pid; /* pid of process for this command. */
2451 struct command *commands; /* each command buffer with above info. */
2453 /* Count # of piped commands. */
2454 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2455 if (strcmp (argbuf[i], "|") == 0)
2458 /* Get storage for each command. */
2459 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2461 /* Split argbuf into its separate piped processes,
2462 and record info about each one.
2463 Also search for the programs that are to be run. */
2465 commands[0].prog = argbuf[0]; /* first command. */
2466 commands[0].argv = &argbuf[0];
2467 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2470 commands[0].argv[0] = string;
2472 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2473 if (strcmp (argbuf[i], "|") == 0)
2474 { /* each command. */
2475 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2476 fatal ("-pipe not supported");
2478 argbuf[i] = 0; /* termination of command args. */
2479 commands[n_commands].prog = argbuf[i + 1];
2480 commands[n_commands].argv = &argbuf[i + 1];
2481 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2483 commands[n_commands].argv[0] = string;
2487 argbuf[argbuf_index] = 0;
2489 /* If -v, print what we are about to do, and maybe query. */
2493 /* For help listings, put a blank line between sub-processes. */
2494 if (print_help_list)
2495 fputc ('\n', stderr);
2497 /* Print each piped command as a separate line. */
2498 for (i = 0; i < n_commands; i++)
2500 const char *const *j;
2502 for (j = commands[i].argv; *j; j++)
2503 fprintf (stderr, " %s", *j);
2505 /* Print a pipe symbol after all but the last command. */
2506 if (i + 1 != n_commands)
2507 fprintf (stderr, " |");
2508 fprintf (stderr, "\n");
2512 notice ("\nGo ahead? (y or n) ");
2516 while (getchar () != '\n')
2519 if (i != 'y' && i != 'Y')
2524 /* Run each piped subprocess. */
2526 for (i = 0; i < n_commands; i++)
2528 char *errmsg_fmt, *errmsg_arg;
2529 const char *string = commands[i].argv[0];
2531 /* For some bizarre reason, the second argument of execvp() is
2532 char *const *, not const char *const *. */
2533 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2534 programname, temp_filename,
2535 &errmsg_fmt, &errmsg_arg,
2536 ((i == 0 ? PEXECUTE_FIRST : 0)
2537 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2538 | (string == commands[i].prog
2539 ? PEXECUTE_SEARCH : 0)
2540 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2542 if (commands[i].pid == -1)
2543 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2545 if (string != commands[i].prog)
2546 free ((PTR) string);
2551 /* Wait for all the subprocesses to finish.
2552 We don't care what order they finish in;
2553 we know that N_COMMANDS waits will get them all.
2554 Ignore subprocesses that we don't know about,
2555 since they can be spawned by the process that exec'ed us. */
2559 #ifdef HAVE_GETRUSAGE
2561 double ut = 0.0, st = 0.0;
2564 for (i = 0; i < n_commands;)
2570 pid = pwait (commands[i].pid, &status, 0);
2574 #ifdef HAVE_GETRUSAGE
2577 /* getrusage returns the total resource usage of all children
2578 up to now. Copy the previous values into prus, get the
2579 current statistics, then take the difference. */
2582 getrusage (RUSAGE_CHILDREN, &rus);
2583 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2584 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2585 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2587 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2588 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2589 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2593 for (j = 0; j < n_commands; j++)
2594 if (commands[j].pid == pid)
2597 if (WIFSIGNALED (status))
2600 /* SIGPIPE is a special case. It happens in -pipe mode
2601 when the compiler dies before the preprocessor is
2602 done, or the assembler dies before the compiler is
2603 done. There's generally been an error already, and
2604 this is just fallout. So don't generate another error
2605 unless we would otherwise have succeeded. */
2606 if (WTERMSIG (status) == SIGPIPE
2607 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2612 Internal error: %s (program %s)\n\
2613 Please submit a full bug report.\n\
2614 See %s for instructions.",
2615 strsignal (WTERMSIG (status)), commands[j].prog,
2620 else if (WIFEXITED (status)
2621 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2623 if (WEXITSTATUS (status) > greatest_status)
2624 greatest_status = WEXITSTATUS (status);
2627 #ifdef HAVE_GETRUSAGE
2628 if (report_times && ut + st != 0)
2629 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2638 /* Find all the switches given to us
2639 and make a vector describing them.
2640 The elements of the vector are strings, one per switch given.
2641 If a switch uses following arguments, then the `part1' field
2642 is the switch itself and the `args' field
2643 is a null-terminated vector containing the following arguments.
2644 The `live_cond' field is:
2646 1 if the switch is true in a conditional spec,
2647 -1 if false (overridden by a later switch)
2648 -2 if this switch should be ignored (used in %{<S})
2649 The `validated' field is nonzero if any spec has looked at this switch;
2650 if it remains zero at the end of the run, it must be meaningless. */
2653 #define SWITCH_FALSE -1
2654 #define SWITCH_IGNORE -2
2655 #define SWITCH_LIVE 1
2662 unsigned char validated;
2663 unsigned char ordering;
2666 static struct switchstr *switches;
2668 static int n_switches;
2673 const char *language;
2676 /* Also a vector of input files specified. */
2678 static struct infile *infiles;
2680 static int n_infiles;
2682 /* This counts the number of libraries added by lang_specific_driver, so that
2683 we can tell if there were any user supplied any files or libraries. */
2685 static int added_libraries;
2687 /* And a vector of corresponding output files is made up later. */
2689 static const char **outfiles;
2691 /* Used to track if none of the -B paths are used. */
2694 /* Used to track if standard path isn't used and -b or -V is specified. */
2695 static int warn_std;
2697 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2698 static int *warn_std_ptr = 0;
2700 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2702 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2703 is true if we should look for an executable suffix as well. */
2706 convert_filename (name, do_exe)
2716 len = strlen (name);
2718 #ifdef HAVE_OBJECT_SUFFIX
2719 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2721 && name[len - 2] == '.'
2722 && name[len - 1] == 'o')
2724 obstack_grow (&obstack, name, len - 2);
2725 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2726 name = obstack_finish (&obstack);
2730 #ifdef HAVE_EXECUTABLE_SUFFIX
2731 /* If there is no filetype, make it the executable suffix (which includes
2732 the "."). But don't get confused if we have just "-o". */
2733 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2736 for (i = len - 1; i >= 0; i--)
2737 if (IS_DIR_SEPARATOR (name[i]))
2740 for (i++; i < len; i++)
2744 obstack_grow (&obstack, name, len);
2745 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2746 name = obstack_finish (&obstack);
2753 /* Display the command line switches accepted by gcc. */
2757 printf (_("Usage: %s [options] file...\n"), programname);
2758 fputs (_("Options:\n"), stdout);
2760 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2761 fputs (_(" --help Display this information\n"), stdout);
2762 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2764 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2765 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2766 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2767 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2768 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2769 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2770 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2771 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2772 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2774 -print-multi-lib Display the mapping between command line options and\n\
2775 multiple library search directories\n"), stdout);
2776 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2777 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2778 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2779 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2780 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2781 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2782 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2783 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2784 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2785 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2786 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2787 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2788 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2789 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2790 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2791 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2792 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2794 -x <language> Specify the language of the following input files\n\
2795 Permissable languages include: c c++ assembler none\n\
2796 'none' means revert to the default behaviour of\n\
2797 guessing the language based on the file's extension\n\
2801 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2802 the various sub-processes invoked by %s. In order to pass other options\n\
2803 on to these processes the -W<letter> options must be used.\n\
2806 /* The rest of the options are displayed by invocations of the various
2811 add_preprocessor_option (option, len)
2815 n_preprocessor_options++;
2817 if (! preprocessor_options)
2818 preprocessor_options
2819 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2821 preprocessor_options
2822 = (char **) xrealloc (preprocessor_options,
2823 n_preprocessor_options * sizeof (char *));
2825 preprocessor_options [n_preprocessor_options - 1] =
2826 save_string (option, len);
2830 add_assembler_option (option, len)
2834 n_assembler_options++;
2836 if (! assembler_options)
2838 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2841 = (char **) xrealloc (assembler_options,
2842 n_assembler_options * sizeof (char *));
2844 assembler_options [n_assembler_options - 1] = save_string (option, len);
2848 add_linker_option (option, len)
2854 if (! linker_options)
2856 = (char **) xmalloc (n_linker_options * sizeof (char *));
2859 = (char **) xrealloc (linker_options,
2860 n_linker_options * sizeof (char *));
2862 linker_options [n_linker_options - 1] = save_string (option, len);
2865 /* Create the vector `switches' and its contents.
2866 Store its length in `n_switches'. */
2869 process_command (argc, argv)
2871 const char *const *argv;
2876 const char *spec_lang = 0;
2877 int last_language_n_infiles;
2880 int lang_n_infiles = 0;
2881 #ifdef MODIFY_TARGET_NAME
2882 int is_modify_target_name;
2886 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2890 added_libraries = 0;
2892 /* Figure compiler version from version string. */
2894 compiler_version = temp1 = xstrdup (version_string);
2896 for (; *temp1; ++temp1)
2905 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2906 see if we can create it from the pathname specified in argv[0]. */
2909 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2910 if (!gcc_exec_prefix)
2912 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2913 standard_exec_prefix);
2914 if (gcc_exec_prefix)
2915 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2919 if (gcc_exec_prefix)
2921 int len = strlen (gcc_exec_prefix);
2923 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
2924 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2926 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2927 if (IS_DIR_SEPARATOR (*temp)
2928 && strncmp (temp + 1, "lib", 3) == 0
2929 && IS_DIR_SEPARATOR (temp[4])
2930 && strncmp (temp + 5, "gcc-lib", 7) == 0)
2931 len -= sizeof ("/lib/gcc-lib/") - 1;
2934 set_std_prefix (gcc_exec_prefix, len);
2935 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2936 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2937 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2938 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2941 /* COMPILER_PATH and LIBRARY_PATH have values
2942 that are lists of directory names with colons. */
2944 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2947 const char *startp, *endp;
2948 char *nstore = (char *) alloca (strlen (temp) + 3);
2950 startp = endp = temp;
2953 if (*endp == PATH_SEPARATOR || *endp == 0)
2955 strncpy (nstore, startp, endp - startp);
2957 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2958 else if (!IS_DIR_SEPARATOR (endp[-1]))
2960 nstore[endp - startp] = DIR_SEPARATOR;
2961 nstore[endp - startp + 1] = 0;
2964 nstore[endp - startp] = 0;
2965 add_prefix (&exec_prefixes, nstore, 0,
2966 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2967 add_prefix (&include_prefixes,
2968 concat (nstore, "include", NULL_PTR),
2969 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2972 endp = startp = endp + 1;
2979 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2980 if (temp && *cross_compile == '0')
2982 const char *startp, *endp;
2983 char *nstore = (char *) alloca (strlen (temp) + 3);
2985 startp = endp = temp;
2988 if (*endp == PATH_SEPARATOR || *endp == 0)
2990 strncpy (nstore, startp, endp - startp);
2992 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2993 else if (!IS_DIR_SEPARATOR (endp[-1]))
2995 nstore[endp - startp] = DIR_SEPARATOR;
2996 nstore[endp - startp + 1] = 0;
2999 nstore[endp - startp] = 0;
3000 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3001 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3004 endp = startp = endp + 1;
3011 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3012 GET_ENV_PATH_LIST (temp, "LPATH");
3013 if (temp && *cross_compile == '0')
3015 const char *startp, *endp;
3016 char *nstore = (char *) alloca (strlen (temp) + 3);
3018 startp = endp = temp;
3021 if (*endp == PATH_SEPARATOR || *endp == 0)
3023 strncpy (nstore, startp, endp - startp);
3025 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3026 else if (!IS_DIR_SEPARATOR (endp[-1]))
3028 nstore[endp - startp] = DIR_SEPARATOR;
3029 nstore[endp - startp + 1] = 0;
3032 nstore[endp - startp] = 0;
3033 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3034 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3037 endp = startp = endp + 1;
3044 /* Convert new-style -- options to old-style. */
3045 translate_options (&argc, &argv);
3047 /* Do language-specific adjustment/addition of flags. */
3048 lang_specific_driver (&argc, &argv, &added_libraries);
3050 /* Scan argv twice. Here, the first time, just count how many switches
3051 there will be in their vector, and how many input files in theirs.
3052 Also parse any switches that determine the configuration name, such as -b.
3053 Here we also parse the switches that cc itself uses (e.g. -v). */
3055 for (i = 1; i < argc; i++)
3057 if (! strcmp (argv[i], "-dumpspecs"))
3059 struct spec_list *sl;
3061 for (sl = specs; sl; sl = sl->next)
3062 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3063 if (link_command_spec)
3064 printf ("*link_command:\n%s\n\n", link_command_spec);
3067 else if (! strcmp (argv[i], "-dumpversion"))
3069 printf ("%s\n", spec_version);
3072 else if (! strcmp (argv[i], "-dumpmachine"))
3074 printf ("%s\n", spec_machine);
3077 else if (strcmp (argv[i], "-fhelp") == 0)
3079 /* translate_options () has turned --help into -fhelp. */
3080 print_help_list = 1;
3082 /* We will be passing a dummy file on to the sub-processes. */
3086 add_preprocessor_option ("--help", 6);
3087 add_assembler_option ("--help", 6);
3088 add_linker_option ("--help", 6);
3090 else if (strcmp (argv[i], "-ftarget-help") == 0)
3092 /* translate_options() has turned --target-help into -ftarget-help. */
3093 target_help_flag = 1;
3095 /* We will be passing a dummy file on to the sub-processes. */
3099 add_preprocessor_option ("--target-help", 13);
3100 add_assembler_option ("--target-help", 13);
3101 add_linker_option ("--target-help", 13);
3103 else if (! strcmp (argv[i], "-pass-exit-codes"))
3105 pass_exit_codes = 1;
3108 else if (! strcmp (argv[i], "-print-search-dirs"))
3109 print_search_dirs = 1;
3110 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3111 print_file_name = "libgcc.a";
3112 else if (! strncmp (argv[i], "-print-file-name=", 17))
3113 print_file_name = argv[i] + 17;
3114 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3115 print_prog_name = argv[i] + 17;
3116 else if (! strcmp (argv[i], "-print-multi-lib"))
3117 print_multi_lib = 1;
3118 else if (! strcmp (argv[i], "-print-multi-directory"))
3119 print_multi_directory = 1;
3120 else if (! strncmp (argv[i], "-Wa,", 4))
3123 /* Pass the rest of this option to the assembler. */
3125 /* Split the argument at commas. */
3127 for (j = 4; argv[i][j]; j++)
3128 if (argv[i][j] == ',')
3130 add_assembler_option (argv[i] + prev, j - prev);
3134 /* Record the part after the last comma. */
3135 add_assembler_option (argv[i] + prev, j - prev);
3137 else if (! strncmp (argv[i], "-Wp,", 4))
3140 /* Pass the rest of this option to the preprocessor. */
3142 /* Split the argument at commas. */
3144 for (j = 4; argv[i][j]; j++)
3145 if (argv[i][j] == ',')
3147 add_preprocessor_option (argv[i] + prev, j - prev);
3151 /* Record the part after the last comma. */
3152 add_preprocessor_option (argv[i] + prev, j - prev);
3154 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3155 /* The +e options to the C++ front-end. */
3157 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3160 /* Split the argument at commas. */
3161 for (j = 3; argv[i][j]; j++)
3162 n_infiles += (argv[i][j] == ',');
3164 else if (strcmp (argv[i], "-Xlinker") == 0)
3167 fatal ("argument to `-Xlinker' is missing");
3172 else if (strncmp (argv[i], "-l", 2) == 0)
3174 else if (strcmp (argv[i], "-save-temps") == 0)
3176 save_temps_flag = 1;
3179 else if (strcmp (argv[i], "-specs") == 0)
3181 struct user_specs *user = (struct user_specs *)
3182 xmalloc (sizeof (struct user_specs));
3184 fatal ("argument to `-specs' is missing");
3186 user->next = (struct user_specs *) 0;
3187 user->filename = argv[i];
3188 if (user_specs_tail)
3189 user_specs_tail->next = user;
3191 user_specs_head = user;
3192 user_specs_tail = user;
3194 else if (strncmp (argv[i], "-specs=", 7) == 0)
3196 struct user_specs *user = (struct user_specs *)
3197 xmalloc (sizeof (struct user_specs));
3198 if (strlen (argv[i]) == 7)
3199 fatal ("argument to `-specs=' is missing");
3201 user->next = (struct user_specs *) 0;
3202 user->filename = argv[i] + 7;
3203 if (user_specs_tail)
3204 user_specs_tail->next = user;
3206 user_specs_head = user;
3207 user_specs_tail = user;
3209 else if (strcmp (argv[i], "-time") == 0)
3211 else if (argv[i][0] == '-' && argv[i][1] != 0)
3213 register const char *p = &argv[i][1];
3214 register int c = *p;
3220 if (p[1] == 0 && i + 1 == argc)
3221 fatal ("argument to `-b' is missing");
3223 spec_machine = argv[++i];
3225 spec_machine = p + 1;
3227 warn_std_ptr = &warn_std;
3233 if (p[1] == 0 && i + 1 == argc)
3234 fatal ("argument to `-B' is missing");
3240 /* As a kludge, if the arg is "[foo/]stageN/", just
3241 add "[foo/]include" to the include prefix. */
3242 int len = strlen (value);
3245 && (IS_DIR_SEPARATOR (value[len - 8]))))
3246 && strncmp (value + len - 7, "stage", 5) == 0
3247 && ISDIGIT (value[len - 2])
3248 && (IS_DIR_SEPARATOR (value[len - 1])))
3251 add_prefix (&include_prefixes, "include", NULL_PTR,
3252 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3255 char *string = xmalloc (len + 1);
3256 strncpy (string, value, len-7);
3257 strcpy (string+len-7, "include");
3258 add_prefix (&include_prefixes, string, NULL_PTR,
3259 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3263 add_prefix (&exec_prefixes, value, NULL_PTR,
3264 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3265 add_prefix (&startfile_prefixes, value, NULL_PTR,
3266 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3267 add_prefix (&include_prefixes, concat (value, "include",
3270 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3275 case 'v': /* Print our subcommands and print versions. */
3277 /* If they do anything other than exactly `-v', don't set
3278 verbose_flag; rather, continue on to give the error. */
3286 if (p[1] == 0 && i + 1 == argc)
3287 fatal ("argument to `-V' is missing");
3289 spec_version = argv[++i];
3291 spec_version = p + 1;
3292 compiler_version = spec_version;
3293 warn_std_ptr = &warn_std;
3295 /* Validate the version number. Use the same checks
3296 done when inserting it into a spec.
3298 The format of the version string is
3299 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3301 const char *v = compiler_version;
3303 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3304 while (! ISDIGIT (*v))
3307 if (v > compiler_version && v[-1] != '-')
3308 fatal ("invalid version number format");
3310 /* Set V after the first period. */
3311 while (ISDIGIT (*v))
3315 fatal ("invalid version number format");
3318 while (ISDIGIT (*v))
3321 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3322 fatal ("invalid version number format");
3338 #if defined(HAVE_EXECUTABLE_SUFFIX)
3343 /* Forward scan, just in case -S or -c is specified
3350 if (argv[j][0] == '-')
3352 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3358 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3359 j += skip - (argv[j][2] != 0);
3360 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3367 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3369 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3371 argv[i] = convert_filename (argv[i], ! have_c);
3378 #ifdef MODIFY_TARGET_NAME
3379 is_modify_target_name = 0;
3382 j < sizeof modify_target / sizeof modify_target[0]; j++)
3383 if (! strcmp (argv[i], modify_target[j].sw))
3386 = (char *) xmalloc (strlen (modify_target[j].str)
3387 + strlen (spec_machine));
3390 int made_addition = 0;
3392 is_modify_target_name = 1;
3393 for (p = spec_machine, q = new_name; *p != 0; )
3395 if (modify_target[j].add_del == DELETE
3396 && (! strncmp (q, modify_target[j].str,
3397 strlen (modify_target[j].str))))
3398 p += strlen (modify_target[j].str);
3399 else if (modify_target[j].add_del == ADD
3400 && ! made_addition && *p == '-')
3402 for (r = modify_target[j].str; *r != 0; )
3410 spec_machine = new_name;
3413 if (is_modify_target_name)
3419 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3420 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3421 else if (WORD_SWITCH_TAKES_ARG (p))
3422 i += WORD_SWITCH_TAKES_ARG (p);
3432 if (have_c && have_o && lang_n_infiles > 1)
3433 fatal ("cannot specify -o with -c or -S and multiple compilations");
3435 /* Set up the search paths before we go looking for config files. */
3437 /* These come before the md prefixes so that we will find gcc's subcommands
3438 (such as cpp) rather than those of the host system. */
3439 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3440 as well as trying the machine and the version. */
3442 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3443 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3444 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3445 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3446 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3447 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3450 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3451 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3452 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3453 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3455 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3456 dir_separator_str, NULL_PTR);
3458 /* If tooldir is relative, base it on exec_prefixes. A relative
3459 tooldir lets us move the installed tree as a unit.
3461 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3462 directories, so that we can search both the user specified directory
3463 and the standard place. */
3465 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3467 if (gcc_exec_prefix)
3469 char *gcc_exec_tooldir_prefix
3470 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3471 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3473 add_prefix (&exec_prefixes,
3474 concat (gcc_exec_tooldir_prefix, "bin",
3475 dir_separator_str, NULL_PTR),
3476 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3477 add_prefix (&startfile_prefixes,
3478 concat (gcc_exec_tooldir_prefix, "lib",
3479 dir_separator_str, NULL_PTR),
3480 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3483 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3484 dir_separator_str, spec_version,
3485 dir_separator_str, tooldir_prefix, NULL_PTR);
3488 add_prefix (&exec_prefixes,
3489 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3490 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3491 add_prefix (&startfile_prefixes,
3492 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3493 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3495 /* More prefixes are enabled in main, after we read the specs file
3496 and determine whether this is cross-compilation or not. */
3498 /* Then create the space for the vectors and scan again. */
3500 switches = ((struct switchstr *)
3501 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3502 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3505 last_language_n_infiles = -1;
3507 /* This, time, copy the text of each switch and store a pointer
3508 to the copy in the vector of switches.
3509 Store all the infiles in their vector. */
3511 for (i = 1; i < argc; i++)
3513 /* Just skip the switches that were handled by the preceding loop. */
3514 #ifdef MODIFY_TARGET_NAME
3515 is_modify_target_name = 0;
3517 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3518 if (! strcmp (argv[i], modify_target[j].sw))
3519 is_modify_target_name = 1;
3521 if (is_modify_target_name)
3525 if (! strncmp (argv[i], "-Wa,", 4))
3527 else if (! strncmp (argv[i], "-Wp,", 4))
3529 else if (! strcmp (argv[i], "-pass-exit-codes"))
3531 else if (! strcmp (argv[i], "-print-search-dirs"))
3533 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3535 else if (! strncmp (argv[i], "-print-file-name=", 17))
3537 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3539 else if (! strcmp (argv[i], "-print-multi-lib"))
3541 else if (! strcmp (argv[i], "-print-multi-directory"))
3543 else if (strcmp (argv[i], "-ftarget-help") == 0)
3545 /* Create a dummy input file, so that we can pass --target-help on to
3546 the various sub-processes. */
3547 infiles[n_infiles].language = "c";
3548 infiles[n_infiles++].name = "target-dummy";
3550 /* Preserve the --target-help switch so that it can be caught by
3551 the cc1 spec string. */
3552 switches[n_switches].part1 = "--target-help";
3553 switches[n_switches].args = 0;
3554 switches[n_switches].live_cond = SWITCH_OK;
3555 switches[n_switches].validated = 0;
3559 else if (strcmp (argv[i], "-fhelp") == 0)
3563 /* Create a dummy input file, so that we can pass --help on to
3564 the various sub-processes. */
3565 infiles[n_infiles].language = "c";
3566 infiles[n_infiles++].name = "help-dummy";
3568 /* Preserve the --help switch so that it can be caught by the
3570 switches[n_switches].part1 = "--help";
3571 switches[n_switches].args = 0;
3572 switches[n_switches].live_cond = SWITCH_OK;
3573 switches[n_switches].validated = 0;
3578 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3580 /* Compensate for the +e options to the C++ front-end;
3581 they're there simply for cfront call-compatibility. We do
3582 some magic in default_compilers to pass them down properly.
3583 Note we deliberately start at the `+' here, to avoid passing
3584 -e0 or -e1 down into the linker. */
3585 switches[n_switches].part1 = &argv[i][0];
3586 switches[n_switches].args = 0;
3587 switches[n_switches].live_cond = SWITCH_OK;
3588 switches[n_switches].validated = 0;
3591 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3594 /* Split the argument at commas. */
3596 for (j = 4; argv[i][j]; j++)
3597 if (argv[i][j] == ',')
3599 infiles[n_infiles].language = "*";
3600 infiles[n_infiles++].name
3601 = save_string (argv[i] + prev, j - prev);
3604 /* Record the part after the last comma. */
3605 infiles[n_infiles].language = "*";
3606 infiles[n_infiles++].name = argv[i] + prev;
3608 else if (strcmp (argv[i], "-Xlinker") == 0)
3610 infiles[n_infiles].language = "*";
3611 infiles[n_infiles++].name = argv[++i];
3613 else if (strncmp (argv[i], "-l", 2) == 0)
3615 infiles[n_infiles].language = "*";
3616 infiles[n_infiles++].name = argv[i];
3618 else if (strcmp (argv[i], "-specs") == 0)
3620 else if (strncmp (argv[i], "-specs=", 7) == 0)
3622 else if (strcmp (argv[i], "-time") == 0)
3624 else if ((save_temps_flag || report_times)
3625 && strcmp (argv[i], "-pipe") == 0)
3627 /* -save-temps overrides -pipe, so that temp files are produced */
3628 if (save_temps_flag)
3629 error ("Warning: -pipe ignored because -save-temps specified");
3630 /* -time overrides -pipe because we can't get correct stats when
3631 multiple children are running at once. */
3632 else if (report_times)
3633 error ("Warning: -pipe ignored because -time specified");
3635 else if (argv[i][0] == '-' && argv[i][1] != 0)
3637 const char *p = &argv[i][1];
3642 if (p[1] == 0 && i + 1 == argc)
3643 fatal ("argument to `-x' is missing");
3645 spec_lang = argv[++i];
3648 if (! strcmp (spec_lang, "none"))
3649 /* Suppress the warning if -xnone comes after the last input
3650 file, because alternate command interfaces like g++ might
3651 find it useful to place -xnone after each input file. */
3654 last_language_n_infiles = n_infiles;
3657 switches[n_switches].part1 = p;
3658 /* Deal with option arguments in separate argv elements. */
3659 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3660 || WORD_SWITCH_TAKES_ARG (p))
3663 int n_args = WORD_SWITCH_TAKES_ARG (p);
3667 /* Count only the option arguments in separate argv elements. */
3668 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3670 if (i + n_args >= argc)
3671 fatal ("argument to `-%s' is missing", p);
3672 switches[n_switches].args
3673 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3675 switches[n_switches].args[j++] = argv[++i];
3676 /* Null-terminate the vector. */
3677 switches[n_switches].args[j] = 0;
3679 else if (strchr (switches_need_spaces, c))
3681 /* On some systems, ld cannot handle some options without
3682 a space. So split the option from its argument. */
3683 char *part1 = (char *) xmalloc (2);
3688 switches[n_switches].part1 = part1;
3689 switches[n_switches].args
3690 = (const char **) xmalloc (2 * sizeof (const char *));
3691 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3692 strcpy (tmp, &p[1]);
3693 switches[n_switches].args[1] = 0;
3696 switches[n_switches].args = 0;
3698 switches[n_switches].live_cond = SWITCH_OK;
3699 switches[n_switches].validated = 0;
3700 /* This is always valid, since gcc.c itself understands it. */
3701 if (!strcmp (p, "save-temps"))
3702 switches[n_switches].validated = 1;
3705 char ch = switches[n_switches].part1[0];
3706 if (ch == 'V' || ch == 'b' || ch == 'B')
3707 switches[n_switches].validated = 1;
3713 #ifdef HAVE_OBJECT_SUFFIX
3714 argv[i] = convert_filename (argv[i], 0);
3717 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3719 perror_with_name (argv[i]);
3724 infiles[n_infiles].language = spec_lang;
3725 infiles[n_infiles++].name = argv[i];
3730 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3731 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3733 switches[n_switches].part1 = 0;
3734 infiles[n_infiles].name = 0;
3737 /* Process a spec string, accumulating and running commands. */
3739 /* These variables describe the input file name.
3740 input_file_number is the index on outfiles of this file,
3741 so that the output file name can be stored for later use by %o.
3742 input_basename is the start of the part of the input file
3743 sans all directory names, and basename_length is the number
3744 of characters starting there excluding the suffix .c or whatever. */
3746 const char *input_filename;
3747 static int input_file_number;
3748 size_t input_filename_length;
3749 static int basename_length;
3750 static int suffixed_basename_length;
3751 static const char *input_basename;
3752 static const char *input_suffix;
3754 /* These are variables used within do_spec and do_spec_1. */
3756 /* Nonzero if an arg has been started and not yet terminated
3757 (with space, tab or newline). */
3758 static int arg_going;
3760 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3761 is a temporary file name. */
3762 static int delete_this_arg;
3764 /* Nonzero means %w has been seen; the next arg to be terminated
3765 is the output file name of this compilation. */
3766 static int this_is_output_file;
3768 /* Nonzero means %s has been seen; the next arg to be terminated
3769 is the name of a library file and we should try the standard
3770 search dirs for it. */
3771 static int this_is_library_file;
3773 /* Nonzero means that the input of this command is coming from a pipe. */
3774 static int input_from_pipe;
3776 /* Process the spec SPEC and run the commands specified therein.
3777 Returns 0 if the spec is successfully processed; -1 if failed. */
3787 delete_this_arg = 0;
3788 this_is_output_file = 0;
3789 this_is_library_file = 0;
3790 input_from_pipe = 0;
3792 value = do_spec_1 (spec, 0, NULL_PTR);
3794 /* Force out any unfinished command.
3795 If -pipe, this forces out the last command if it ended in `|'. */
3798 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3801 if (argbuf_index > 0)
3808 /* Process the sub-spec SPEC as a portion of a larger spec.
3809 This is like processing a whole spec except that we do
3810 not initialize at the beginning and we do not supply a
3811 newline by default at the end.
3812 INSWITCH nonzero means don't process %-sequences in SPEC;
3813 in this case, % is treated as an ordinary character.
3814 This is used while substituting switches.
3815 INSWITCH nonzero also causes SPC not to terminate an argument.
3817 Value is zero unless a line was finished
3818 and the command on that line reported an error. */
3821 do_spec_1 (spec, inswitch, soft_matched_part)
3824 const char *soft_matched_part;
3826 register const char *p = spec;
3833 /* If substituting a switch, treat all chars like letters.
3834 Otherwise, NL, SPC, TAB and % are special. */
3835 switch (inswitch ? 'a' : c)
3838 /* End of line: finish any pending argument,
3839 then run the pending command if one has been started. */
3842 obstack_1grow (&obstack, 0);
3843 string = obstack_finish (&obstack);
3844 if (this_is_library_file)
3845 string = find_file (string);
3846 store_arg (string, delete_this_arg, this_is_output_file);
3847 if (this_is_output_file)
3848 outfiles[input_file_number] = string;
3852 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3854 for (i = 0; i < n_switches; i++)
3855 if (!strcmp (switches[i].part1, "pipe"))
3858 /* A `|' before the newline means use a pipe here,
3859 but only if -pipe was specified.
3860 Otherwise, execute now and don't pass the `|' as an arg. */
3863 input_from_pipe = 1;
3864 switches[i].validated = 1;
3871 if (argbuf_index > 0)
3877 /* Reinitialize for a new command, and for a new argument. */
3880 delete_this_arg = 0;
3881 this_is_output_file = 0;
3882 this_is_library_file = 0;
3883 input_from_pipe = 0;
3887 /* End any pending argument. */
3890 obstack_1grow (&obstack, 0);
3891 string = obstack_finish (&obstack);
3892 if (this_is_library_file)
3893 string = find_file (string);
3894 store_arg (string, delete_this_arg, this_is_output_file);
3895 if (this_is_output_file)
3896 outfiles[input_file_number] = string;
3900 obstack_1grow (&obstack, c);
3906 /* Space or tab ends an argument if one is pending. */
3909 obstack_1grow (&obstack, 0);
3910 string = obstack_finish (&obstack);
3911 if (this_is_library_file)
3912 string = find_file (string);
3913 store_arg (string, delete_this_arg, this_is_output_file);
3914 if (this_is_output_file)
3915 outfiles[input_file_number] = string;
3917 /* Reinitialize for a new argument. */
3919 delete_this_arg = 0;
3920 this_is_output_file = 0;
3921 this_is_library_file = 0;
3928 fatal ("Invalid specification! Bug in cc.");
3931 obstack_grow (&obstack, input_basename, basename_length);
3936 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3941 delete_this_arg = 2;
3944 /* Dump out the directories specified with LIBRARY_PATH,
3945 followed by the absolute directories
3946 that we search for startfiles. */
3949 struct prefix_list *pl = startfile_prefixes.plist;
3950 size_t bufsize = 100;
3951 char *buffer = (char *) xmalloc (bufsize);
3954 for (; pl; pl = pl->next)
3956 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3957 /* Used on systems which record the specified -L dirs
3958 and use them to search for dynamic linking. */
3959 /* Relative directories always come from -B,
3960 and it is better not to use them for searching
3961 at run time. In particular, stage1 loses. */
3962 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
3965 /* Try subdirectory if there is one. */
3966 if (multilib_dir != NULL)
3970 if (strlen (pl->prefix) + strlen (machine_suffix)
3972 bufsize = (strlen (pl->prefix)
3973 + strlen (machine_suffix)) * 2 + 1;
3974 buffer = (char *) xrealloc (buffer, bufsize);
3975 strcpy (buffer, pl->prefix);
3976 strcat (buffer, machine_suffix);
3977 if (is_directory (buffer, multilib_dir, 1))
3979 do_spec_1 ("-L", 0, NULL_PTR);
3980 #ifdef SPACE_AFTER_L_OPTION
3981 do_spec_1 (" ", 0, NULL_PTR);
3983 do_spec_1 (buffer, 1, NULL_PTR);
3984 do_spec_1 (multilib_dir, 1, NULL_PTR);
3985 /* Make this a separate argument. */
3986 do_spec_1 (" ", 0, NULL_PTR);
3989 if (!pl->require_machine_suffix)
3991 if (is_directory (pl->prefix, multilib_dir, 1))
3993 do_spec_1 ("-L", 0, NULL_PTR);
3994 #ifdef SPACE_AFTER_L_OPTION
3995 do_spec_1 (" ", 0, NULL_PTR);
3997 do_spec_1 (pl->prefix, 1, NULL_PTR);
3998 do_spec_1 (multilib_dir, 1, NULL_PTR);
3999 /* Make this a separate argument. */
4000 do_spec_1 (" ", 0, NULL_PTR);
4006 if (is_directory (pl->prefix, machine_suffix, 1))
4008 do_spec_1 ("-L", 0, NULL_PTR);
4009 #ifdef SPACE_AFTER_L_OPTION
4010 do_spec_1 (" ", 0, NULL_PTR);
4012 do_spec_1 (pl->prefix, 1, NULL_PTR);
4013 /* Remove slash from machine_suffix. */
4014 if (strlen (machine_suffix) >= bufsize)
4015 bufsize = strlen (machine_suffix) * 2 + 1;
4016 buffer = (char *) xrealloc (buffer, bufsize);
4017 strcpy (buffer, machine_suffix);
4018 idx = strlen (buffer);
4019 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4020 buffer[idx - 1] = 0;
4021 do_spec_1 (buffer, 1, NULL_PTR);
4022 /* Make this a separate argument. */
4023 do_spec_1 (" ", 0, NULL_PTR);
4026 if (!pl->require_machine_suffix)
4028 if (is_directory (pl->prefix, "", 1))
4030 do_spec_1 ("-L", 0, NULL_PTR);
4031 #ifdef SPACE_AFTER_L_OPTION
4032 do_spec_1 (" ", 0, NULL_PTR);
4034 /* Remove slash from pl->prefix. */
4035 if (strlen (pl->prefix) >= bufsize)
4036 bufsize = strlen (pl->prefix) * 2 + 1;
4037 buffer = (char *) xrealloc (buffer, bufsize);
4038 strcpy (buffer, pl->prefix);
4039 idx = strlen (buffer);
4040 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4041 buffer[idx - 1] = 0;
4042 do_spec_1 (buffer, 1, NULL_PTR);
4043 /* Make this a separate argument. */
4044 do_spec_1 (" ", 0, NULL_PTR);
4053 /* %efoo means report an error with `foo' as error message
4054 and don't execute any more commands for this file. */
4058 while (*p != 0 && *p != '\n')
4060 buf = (char *) alloca (p - q + 1);
4061 strncpy (buf, q, p - q);
4072 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4073 and it is not a directory, and it is writable, use it.
4074 Otherwise, fall through and treat this like any other
4077 if ((!save_temps_flag)
4078 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4079 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4081 obstack_grow (&obstack, HOST_BIT_BUCKET,
4082 strlen (HOST_BIT_BUCKET));
4083 delete_this_arg = 0;
4091 if (save_temps_flag)
4093 obstack_grow (&obstack, input_basename, basename_length);
4094 delete_this_arg = 0;
4098 struct temp_name *t;
4100 const char *suffix = p;
4101 char *saved_suffix = NULL;
4103 while (*p == '.' || ISALPHA ((unsigned char) *p))
4105 suffix_length = p - suffix;
4106 if (p[0] == '%' && p[1] == 'O')
4109 /* We don't support extra suffix characters after %O. */
4110 if (*p == '.' || ISALPHA ((unsigned char) *p))
4112 if (suffix_length == 0)
4113 suffix = OBJECT_SUFFIX;
4117 = (char *) xmalloc (suffix_length
4118 + strlen (OBJECT_SUFFIX));
4119 strncpy (saved_suffix, suffix, suffix_length);
4120 strcpy (saved_suffix + suffix_length,
4123 suffix_length += strlen (OBJECT_SUFFIX);
4126 /* See if we already have an association of %g/%u/%U and
4128 for (t = temp_names; t; t = t->next)
4129 if (t->length == suffix_length
4130 && strncmp (t->suffix, suffix, suffix_length) == 0
4131 && t->unique == (c != 'g'))
4134 /* Make a new association if needed. %u and %j require one. */
4135 if (t == 0 || c == 'u' || c == 'j')
4139 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4140 t->next = temp_names;
4143 t->length = suffix_length;
4144 t->suffix = save_string (suffix, suffix_length);
4145 t->unique = (c != 'g');
4146 temp_filename = make_temp_file (t->suffix);
4147 temp_filename_length = strlen (temp_filename);
4148 t->filename = temp_filename;
4149 t->filename_length = temp_filename_length;
4153 free (saved_suffix);
4155 obstack_grow (&obstack, t->filename, t->filename_length);
4156 delete_this_arg = 1;
4162 obstack_grow (&obstack, input_filename, input_filename_length);
4168 struct prefix_list *pl = include_prefixes.plist;
4170 if (gcc_exec_prefix)
4172 do_spec_1 ("-iprefix", 1, NULL_PTR);
4173 /* Make this a separate argument. */
4174 do_spec_1 (" ", 0, NULL_PTR);
4175 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4176 do_spec_1 (" ", 0, NULL_PTR);
4179 for (; pl; pl = pl->next)
4181 do_spec_1 ("-isystem", 1, NULL_PTR);
4182 /* Make this a separate argument. */
4183 do_spec_1 (" ", 0, NULL_PTR);
4184 do_spec_1 (pl->prefix, 1, NULL_PTR);
4185 do_spec_1 (" ", 0, NULL_PTR);
4192 int max = n_infiles;
4193 max += lang_specific_extra_outfiles;
4195 for (i = 0; i < max; i++)
4197 store_arg (outfiles[i], 0, 0);
4202 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4207 this_is_library_file = 1;
4211 this_is_output_file = 1;
4216 int cur_index = argbuf_index;
4217 /* Handle the {...} following the %W. */
4220 p = handle_braces (p + 1);
4223 /* If any args were output, mark the last one for deletion
4225 if (argbuf_index != cur_index)
4226 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4230 /* %x{OPTION} records OPTION for %X to output. */
4236 /* Skip past the option value and make a copy. */
4241 string = save_string (p1 + 1, p - p1 - 2);
4243 /* See if we already recorded this option. */
4244 for (i = 0; i < n_linker_options; i++)
4245 if (! strcmp (string, linker_options[i]))
4251 /* This option is new; add it. */
4252 add_linker_option (string, strlen (string));
4256 /* Dump out the options accumulated previously using %x. */
4258 for (i = 0; i < n_linker_options; i++)
4260 do_spec_1 (linker_options[i], 1, NULL_PTR);
4261 /* Make each accumulated option a separate argument. */
4262 do_spec_1 (" ", 0, NULL_PTR);
4266 /* Dump out the options accumulated previously using -Wa,. */
4268 for (i = 0; i < n_assembler_options; i++)
4270 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4271 /* Make each accumulated option a separate argument. */
4272 do_spec_1 (" ", 0, NULL_PTR);
4276 /* Dump out the options accumulated previously using -Wp,. */
4278 for (i = 0; i < n_preprocessor_options; i++)
4280 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4281 /* Make each accumulated option a separate argument. */
4282 do_spec_1 (" ", 0, NULL_PTR);
4286 /* Here are digits and numbers that just process
4287 a certain constant string as a spec. */
4290 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4296 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4302 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4308 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4314 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4320 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4326 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4332 value = do_spec_1 (link_spec, 0, NULL_PTR);
4338 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4344 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4351 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4355 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4359 if (! strncmp (y, "-D", 2))
4360 /* Copy the whole option. */
4361 while (*y && *y != ' ' && *y != '\t')
4363 else if (*y == ' ' || *y == '\t')
4364 /* Copy whitespace to the result. */
4366 /* Don't copy other options. */
4373 value = do_spec_1 (buf, 0, NULL_PTR);
4381 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4385 /* Copy all of CPP_PREDEFINES into BUF,
4386 but force them all into the reserved name space if they
4387 aren't already there. The reserved name space is all
4388 identifiers beginning with two underscores or with one
4389 underscore and a capital letter. We do the forcing by
4390 adding up to two underscores to the beginning and end
4391 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4396 if (! strncmp (y, "-D", 2))
4405 && ! ISUPPER ((unsigned char) *(y + 1))))
4407 /* Stick __ at front of macro name. */
4411 /* Arrange to stick __ at the end as well. */
4415 /* Copy the macro name. */
4416 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4429 /* Copy the value given, if any. */
4430 while (*y && *y != ' ' && *y != '\t')
4433 else if (*y == ' ' || *y == '\t')
4434 /* Copy whitespace to the result. */
4436 /* Don't copy -A options */
4442 /* Copy all of CPP_PREDEFINES into BUF,
4443 but put __ after every -D. */
4447 if (! strncmp (y, "-D", 2))
4453 && ! ISUPPER ((unsigned char) *(y + 1))))
4455 /* Stick -D__ at front of macro name. */
4462 /* Copy the macro name. */
4463 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4466 /* Copy the value given, if any. */
4467 while (*y && *y != ' ' && *y != '\t')
4472 /* Do not copy this macro - we have just done it before */
4473 while (*y && *y != ' ' && *y != '\t')
4477 else if (*y == ' ' || *y == '\t')
4478 /* Copy whitespace to the result. */
4480 /* Don't copy -A options. */
4486 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4490 if (! strncmp (y, "-A", 2))
4491 /* Copy the whole option. */
4492 while (*y && *y != ' ' && *y != '\t')
4494 else if (*y == ' ' || *y == '\t')
4495 /* Copy whitespace to the result. */
4497 /* Don't copy other options. */
4504 value = do_spec_1 (buf, 0, NULL_PTR);
4511 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4516 /* Here we define characters other than letters and digits. */
4519 p = handle_braces (p);
4525 obstack_1grow (&obstack, '%');
4529 if (soft_matched_part)
4531 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4532 do_spec_1 (" ", 0, NULL_PTR);
4535 /* Catch the case where a spec string contains something like
4536 '%{foo:%*}'. ie there is no * in the pattern on the left
4537 hand side of the :. */
4538 error ("Spec failure: '%%*' has not been initialised by pattern match");
4541 /* Process a string found as the value of a spec given by name.
4542 This feature allows individual machine descriptions
4543 to add and use their own specs.
4544 %[...] modifies -D options the way %P does;
4545 %(...) uses the spec unmodified. */
4547 error ("Warning: use of obsolete %%[ operator in specs");
4550 const char *name = p;
4551 struct spec_list *sl;
4554 /* The string after the S/P is the name of a spec that is to be
4556 while (*p && *p != ')' && *p != ']')
4559 /* See if it's in the list. */
4560 for (len = p - name, sl = specs; sl; sl = sl->next)
4561 if (sl->name_len == len && !strncmp (sl->name, name, len))
4563 name = *(sl->ptr_spec);
4565 notice ("Processing spec %c%s%c, which is '%s'\n",
4566 c, sl->name, (c == '(') ? ')' : ']', name);
4575 value = do_spec_1 (name, 0, NULL_PTR);
4581 char *x = (char *) alloca (strlen (name) * 2 + 1);
4583 const char *y = name;
4586 /* Copy all of NAME into BUF, but put __ after
4587 every -D and at the end of each arg. */
4590 if (! strncmp (y, "-D", 2))
4601 && (*y == ' ' || *y == '\t' || *y == '='
4602 || *y == '}' || *y == 0))
4615 value = do_spec_1 (buf, 0, NULL_PTR);
4621 /* Discard the closing paren or bracket. */
4629 int c1 = *p++; /* Select first or second version number. */
4630 const char *v = compiler_version;
4632 static const char zeroc = '0';
4634 /* The format of the version string is
4635 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4637 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4638 while (! ISDIGIT (*v))
4640 if (v > compiler_version && v[-1] != '-')
4643 /* If desired, advance to second version number. */
4646 /* Set V after the first period. */
4647 while (ISDIGIT (*v))
4654 /* If desired, advance to third version number.
4655 But don't complain if it's not present */
4658 /* Set V after the second period. */
4659 while (ISDIGIT (*v))
4661 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4667 /* Set Q at the next period or at the end. */
4669 while (ISDIGIT (*q))
4671 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4675 /* Put that part into the command. */
4676 obstack_grow (&obstack, v, q - v);
4678 /* Default to "0" */
4679 obstack_grow (&obstack, &zeroc, 1);
4685 if (input_from_pipe)
4686 do_spec_1 ("-", 0, NULL_PTR);
4690 error ("Spec failure: Unrecognised spec option '%c'", c);
4696 /* Backslash: treat next character as ordinary. */
4701 /* Ordinary character: put it into the current argument. */
4702 obstack_1grow (&obstack, c);
4706 /* End of string. */
4710 /* Return 0 if we call do_spec_1 and that returns -1. */
4714 register const char *p;
4716 const char *filter, *body = NULL, *endbody = NULL;
4718 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4721 int include_blanks = 1;
4722 int elide_switch = 0;
4727 /* A '^' after the open-brace means to not give blanks before args. */
4734 /* A `|' after the open-brace means,
4735 if the test fails, output a single minus sign rather than nothing.
4736 This is used in %{|!pipe:...}. */
4743 /* A `<' after the open-brace means that the switch should be
4744 removed from the command-line. */
4750 negate = suffix = 0;
4753 /* A `!' after the open-brace negates the condition:
4754 succeed if the specified switch is not present. */
4758 /* A `.' after the open-brace means test against the current suffix. */
4767 if (elide_switch && (negate || pipe_p || suffix))
4769 /* It doesn't make sense to mix elision with other flags. We
4770 could fatal() here, but the standard seems to be to abort. */
4776 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
4779 if (*p == '|' && (pipe_p || ordered))
4784 if (*p != '}' && *p != '&')
4786 register int count = 1;
4787 register const char *q = p;
4806 body = p, endbody = p + 1;
4811 int found = (input_suffix != 0
4812 && (long) strlen (input_suffix) == (long) (p - filter)
4813 && strncmp (input_suffix, filter, p - filter) == 0);
4819 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4822 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
4824 /* Substitute all matching switches as separate args. */
4827 for (i = 0; i < n_switches; i++)
4828 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
4829 && check_live_switch (i, p - 1 - filter))
4833 switches[i].live_cond = SWITCH_IGNORE;
4834 switches[i].validated = 1;
4837 ordered = 1, switches[i].ordering = 1;
4842 /* Test for presence of the specified switch. */
4846 /* If name specified ends in *, as in {x*:...},
4847 check for %* and handle that case. */
4848 if (p[-1] == '*' && !negate)
4851 const char *r = body;
4853 /* First see whether we have %*. */
4857 if (*r == '%' && r[1] == '*')
4861 /* If we do, handle that case. */
4864 /* Substitute all matching switches as separate args.
4865 But do this by substituting for %*
4866 in the text that follows the colon. */
4868 unsigned hard_match_len = p - filter - 1;
4869 char *string = save_string (body, endbody - body - 1);
4871 for (i = 0; i < n_switches; i++)
4872 if (!strncmp (switches[i].part1, filter, hard_match_len)
4873 && check_live_switch (i, -1))
4875 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4876 /* Pass any arguments this switch has. */
4877 give_switch (i, 1, 1);
4880 /* We didn't match. Try again. */
4887 /* If name specified ends in *, as in {x*:...},
4888 check for presence of any switch name starting with x. */
4891 for (i = 0; i < n_switches; i++)
4893 unsigned hard_match_len = p - filter - 1;
4895 if (!strncmp (switches[i].part1, filter, hard_match_len)
4896 && check_live_switch (i, hard_match_len))
4903 /* Otherwise, check for presence of exact name specified. */
4906 for (i = 0; i < n_switches; i++)
4908 if (!strncmp (switches[i].part1, filter, p - filter)
4909 && switches[i].part1[p - filter] == 0
4910 && check_live_switch (i, -1))
4918 /* If it is as desired (present for %{s...}, absent for %{!s...})
4919 then substitute either the switch or the specified
4920 conditional text. */
4921 if (present != negate)
4925 switches[i].live_cond = SWITCH_IGNORE;
4926 switches[i].validated = 1;
4928 else if (ordered || *p == '&')
4929 ordered = 1, switches[i].ordering = 1;
4931 give_switch (i, 0, include_blanks);
4933 /* Even if many alternatives are matched, only output once. */
4938 /* Here if a %{|...} conditional fails: output a minus sign,
4939 which means "standard output" or "standard input". */
4940 do_spec_1 ("-", 0, NULL_PTR);
4945 /* We didn't match; try again. */
4952 goto next_ampersand;
4958 /* Doing this set of switches later preserves their command-line
4959 ordering. This is needed for e.g. -U, -D and -A. */
4960 for (i = 0; i < n_switches; i++)
4961 if (switches[i].ordering == 1)
4963 switches[i].ordering = 0;
4964 give_switch (i, 0, include_blanks);
4967 /* Process the spec just once, regardless of match count. */
4970 if (do_spec_1 (save_string (body, endbody - body - 1),
4978 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4979 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4980 spec, or -1 if either exact match or %* is used.
4982 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4983 whose value does not begin with "no-" is obsoleted by the same value
4984 with the "no-", similarly for a switch with the "no-" prefix. */
4987 check_live_switch (switchnum, prefix_length)
4991 const char *name = switches[switchnum].part1;
4994 /* In the common case of {<at-most-one-letter>*}, a negating
4995 switch would always match, so ignore that case. We will just
4996 send the conflicting switches to the compiler phase. */
4997 if (prefix_length >= 0 && prefix_length <= 1)
5000 /* If we already processed this switch and determined if it was
5001 live or not, return our past determination. */
5002 if (switches[switchnum].live_cond != 0)
5003 return switches[switchnum].live_cond > 0;
5005 /* Now search for duplicate in a manner that depends on the name. */
5009 for (i = switchnum + 1; i < n_switches; i++)
5010 if (switches[i].part1[0] == 'O')
5012 switches[switchnum].validated = 1;
5013 switches[switchnum].live_cond = SWITCH_FALSE;
5018 case 'W': case 'f': case 'm':
5019 if (! strncmp (name + 1, "no-", 3))
5021 /* We have Xno-YYY, search for XYYY. */
5022 for (i = switchnum + 1; i < n_switches; i++)
5023 if (switches[i].part1[0] == name[0]
5024 && ! strcmp (&switches[i].part1[1], &name[4]))
5026 switches[switchnum].validated = 1;
5027 switches[switchnum].live_cond = SWITCH_FALSE;
5033 /* We have XYYY, search for Xno-YYY. */
5034 for (i = switchnum + 1; i < n_switches; i++)
5035 if (switches[i].part1[0] == name[0]
5036 && switches[i].part1[1] == 'n'
5037 && switches[i].part1[2] == 'o'
5038 && switches[i].part1[3] == '-'
5039 && !strcmp (&switches[i].part1[4], &name[1]))
5041 switches[switchnum].validated = 1;
5042 switches[switchnum].live_cond = SWITCH_FALSE;
5049 /* Otherwise the switch is live. */
5050 switches[switchnum].live_cond = SWITCH_LIVE;
5054 /* Pass a switch to the current accumulating command
5055 in the same form that we received it.
5056 SWITCHNUM identifies the switch; it is an index into
5057 the vector of switches gcc received, which is `switches'.
5058 This cannot fail since it never finishes a command line.
5060 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5062 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5066 give_switch (switchnum, omit_first_word, include_blanks)
5068 int omit_first_word;
5071 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5074 if (!omit_first_word)
5076 do_spec_1 ("-", 0, NULL_PTR);
5077 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5080 if (switches[switchnum].args != 0)
5083 for (p = switches[switchnum].args; *p; p++)
5086 do_spec_1 (" ", 0, NULL_PTR);
5087 do_spec_1 (*p, 1, NULL_PTR);
5091 do_spec_1 (" ", 0, NULL_PTR);
5092 switches[switchnum].validated = 1;
5095 /* Search for a file named NAME trying various prefixes including the
5096 user's -B prefix and some standard ones.
5097 Return the absolute file name found. If nothing is found, return NAME. */
5105 /* Try multilib_dir if it is defined. */
5106 if (multilib_dir != NULL)
5110 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5111 strcpy (try, multilib_dir);
5112 strcat (try, dir_separator_str);
5115 newname = find_a_file (&startfile_prefixes, try, R_OK);
5117 /* If we don't find it in the multi library dir, then fall
5118 through and look for it in the normal places. */
5119 if (newname != NULL)
5123 newname = find_a_file (&startfile_prefixes, name, R_OK);
5124 return newname ? newname : name;
5127 /* Determine whether a directory exists. If LINKER, return 0 for
5128 certain fixed names not needed by the linker. If not LINKER, it is
5129 only important to return 0 if the host machine has a small ARG_MAX
5133 is_directory (path1, path2, linker)
5138 int len1 = strlen (path1);
5139 int len2 = strlen (path2);
5140 char *path = (char *) alloca (3 + len1 + len2);
5144 #ifndef SMALL_ARG_MAX
5149 /* Construct the path from the two parts. Ensure the string ends with "/.".
5150 The resulting path will be a directory even if the given path is a
5152 memcpy (path, path1, len1);
5153 memcpy (path + len1, path2, len2);
5154 cp = path + len1 + len2;
5155 if (!IS_DIR_SEPARATOR (cp[-1]))
5156 *cp++ = DIR_SEPARATOR;
5160 /* Exclude directories that the linker is known to search. */
5163 && strcmp (path, concat (dir_separator_str, "lib",
5164 dir_separator_str, ".", NULL_PTR)) == 0)
5166 && strcmp (path, concat (dir_separator_str, "usr",
5167 dir_separator_str, "lib",
5168 dir_separator_str, ".", NULL_PTR)) == 0)))
5171 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5174 /* Set up the various global variables to indicate that we're processing
5175 the input file named FILENAME. */
5178 set_input (filename)
5179 const char *filename;
5181 register const char *p;
5183 input_filename = filename;
5184 input_filename_length = strlen (input_filename);
5186 input_basename = input_filename;
5187 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5188 /* Skip drive name so 'x:foo' is handled properly. */
5189 if (input_basename[1] == ':')
5190 input_basename += 2;
5192 for (p = input_basename; *p; p++)
5193 if (IS_DIR_SEPARATOR (*p))
5194 input_basename = p + 1;
5196 /* Find a suffix starting with the last period,
5197 and set basename_length to exclude that suffix. */
5198 basename_length = strlen (input_basename);
5199 suffixed_basename_length = basename_length;
5200 p = input_basename + basename_length;
5201 while (p != input_basename && *p != '.')
5203 if (*p == '.' && p != input_basename)
5205 basename_length = p - input_basename;
5206 input_suffix = p + 1;
5212 /* On fatal signals, delete all the temporary files. */
5215 fatal_error (signum)
5218 signal (signum, SIG_DFL);
5219 delete_failure_queue ();
5220 delete_temp_files ();
5221 /* Get the same signal again, this time not handled,
5222 so its normal effect occurs. */
5223 kill (getpid (), signum);
5226 extern int main PARAMS ((int, const char *const *));
5231 const char *const *argv;
5235 int linker_was_run = 0;
5236 char *explicit_link_files;
5239 struct user_specs *uptr;
5241 p = argv[0] + strlen (argv[0]);
5242 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5246 xmalloc_set_program_name (programname);
5248 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5249 /* Perform host dependant initialization when needed. */
5250 GCC_DRIVER_HOST_INITIALIZATION;
5253 /* LC_CTYPE determines the character set used by the terminal so it has be set
5254 to output messages correctly. */
5256 #ifdef HAVE_LC_MESSAGES
5257 setlocale (LC_CTYPE, "");
5258 setlocale (LC_MESSAGES, "");
5260 setlocale (LC_ALL, "");
5263 (void) bindtextdomain (PACKAGE, localedir);
5264 (void) textdomain (PACKAGE);
5266 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5267 signal (SIGINT, fatal_error);
5269 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5270 signal (SIGHUP, fatal_error);
5272 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5273 signal (SIGTERM, fatal_error);
5275 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5276 signal (SIGPIPE, fatal_error);
5280 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5282 obstack_init (&obstack);
5284 /* Build multilib_select, et. al from the separate lines that make up each
5285 multilib selection. */
5287 const char *const *q = multilib_raw;
5290 obstack_init (&multilib_obstack);
5291 while ((p = *q++) != (char *) 0)
5292 obstack_grow (&multilib_obstack, p, strlen (p));
5294 obstack_1grow (&multilib_obstack, 0);
5295 multilib_select = obstack_finish (&multilib_obstack);
5297 q = multilib_matches_raw;
5298 while ((p = *q++) != (char *) 0)
5299 obstack_grow (&multilib_obstack, p, strlen (p));
5301 obstack_1grow (&multilib_obstack, 0);
5302 multilib_matches = obstack_finish (&multilib_obstack);
5304 q = multilib_exclusions_raw;
5305 while ((p = *q++) != (char *) 0)
5306 obstack_grow (&multilib_obstack, p, strlen (p));
5308 obstack_1grow (&multilib_obstack, 0);
5309 multilib_exclusions = obstack_finish (&multilib_obstack);
5312 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5315 obstack_1grow (&multilib_obstack, ' ');
5316 obstack_grow (&multilib_obstack,
5317 multilib_defaults_raw[i],
5318 strlen (multilib_defaults_raw[i]));
5322 obstack_1grow (&multilib_obstack, 0);
5323 multilib_defaults = obstack_finish (&multilib_obstack);
5326 /* Set up to remember the pathname of gcc and any options
5327 needed for collect. We use argv[0] instead of programname because
5328 we need the complete pathname. */
5329 obstack_init (&collect_obstack);
5330 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5331 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5332 putenv (obstack_finish (&collect_obstack));
5334 #ifdef INIT_ENVIRONMENT
5335 /* Set up any other necessary machine specific environment variables. */
5336 putenv (INIT_ENVIRONMENT);
5339 /* Make a table of what switches there are (switches, n_switches).
5340 Make a table of specified input files (infiles, n_infiles).
5341 Decode switches that are handled locally. */
5343 process_command (argc, argv);
5348 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5350 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5351 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5354 for (i = 0; (int) i < n_switches; i++)
5356 const char *const *args;
5359 obstack_grow (&collect_obstack, " ", 1);
5362 obstack_grow (&collect_obstack, "'-", 2);
5363 q = switches[i].part1;
5364 while ((p = strchr (q, '\'')))
5366 obstack_grow (&collect_obstack, q, p - q);
5367 obstack_grow (&collect_obstack, "'\\''", 4);
5370 obstack_grow (&collect_obstack, q, strlen (q));
5371 obstack_grow (&collect_obstack, "'", 1);
5373 for (args = switches[i].args; args && *args; args++)
5375 obstack_grow (&collect_obstack, " '", 2);
5377 while ((p = strchr (q, '\'')))
5379 obstack_grow (&collect_obstack, q, p - q);
5380 obstack_grow (&collect_obstack, "'\\''", 4);
5383 obstack_grow (&collect_obstack, q, strlen (q));
5384 obstack_grow (&collect_obstack, "'", 1);
5387 obstack_grow (&collect_obstack, "\0", 1);
5388 putenv (obstack_finish (&collect_obstack));
5391 /* Initialize the vector of specs to just the default.
5392 This means one element containing 0s, as a terminator. */
5394 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5395 memcpy ((char *) compilers, (char *) default_compilers,
5396 sizeof default_compilers);
5397 n_compilers = n_default_compilers;
5399 /* Read specs from a file if there is one. */
5401 machine_suffix = concat (spec_machine, dir_separator_str,
5402 spec_version, dir_separator_str, NULL_PTR);
5403 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5405 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5406 /* Read the specs file unless it is a default one. */
5407 if (specs_file != 0 && strcmp (specs_file, "specs"))
5408 read_specs (specs_file, TRUE);
5412 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5413 for any override of as, ld and libraries. */
5414 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5415 + strlen (just_machine_suffix)
5416 + sizeof ("specs"));
5418 strcpy (specs_file, standard_exec_prefix);
5419 strcat (specs_file, just_machine_suffix);
5420 strcat (specs_file, "specs");
5421 if (access (specs_file, R_OK) == 0)
5422 read_specs (specs_file, TRUE);
5424 /* If not cross-compiling, look for startfiles in the standard places. */
5425 if (*cross_compile == '0')
5427 if (*md_exec_prefix)
5429 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5430 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5431 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5432 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5435 if (*md_startfile_prefix)
5436 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5437 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5439 if (*md_startfile_prefix_1)
5440 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5441 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5443 /* If standard_startfile_prefix is relative, base it on
5444 standard_exec_prefix. This lets us move the installed tree
5445 as a unit. If GCC_EXEC_PREFIX is defined, base
5446 standard_startfile_prefix on that as well. */
5447 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5448 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5449 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5452 if (gcc_exec_prefix)
5453 add_prefix (&startfile_prefixes,
5454 concat (gcc_exec_prefix, machine_suffix,
5455 standard_startfile_prefix, NULL_PTR),
5456 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5457 add_prefix (&startfile_prefixes,
5458 concat (standard_exec_prefix,
5460 standard_startfile_prefix, NULL_PTR),
5461 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5464 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5465 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5466 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5467 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5468 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5469 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5470 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5475 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5477 add_prefix (&startfile_prefixes,
5478 concat (gcc_exec_prefix, machine_suffix,
5479 standard_startfile_prefix, NULL_PTR),
5480 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5483 /* Process any user specified specs in the order given on the command
5485 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5487 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5488 read_specs (filename ? filename : uptr->filename, FALSE);
5491 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5492 if (gcc_exec_prefix)
5494 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5495 + strlen (spec_version)
5496 + strlen (spec_machine) + 3);
5497 strcpy (temp, gcc_exec_prefix);
5498 strcat (temp, spec_machine);
5499 strcat (temp, dir_separator_str);
5500 strcat (temp, spec_version);
5501 strcat (temp, dir_separator_str);
5502 gcc_exec_prefix = temp;
5505 /* Now we have the specs.
5506 Set the `valid' bits for switches that match anything in any spec. */
5508 validate_all_switches ();
5510 /* Now that we have the switches and the specs, set
5511 the subdirectory based on the options. */
5512 set_multilib_dir ();
5514 /* Warn about any switches that no pass was interested in. */
5516 for (i = 0; (int) i < n_switches; i++)
5517 if (! switches[i].validated)
5518 error ("unrecognized option `-%s'", switches[i].part1);
5520 /* Obey some of the options. */
5522 if (print_search_dirs)
5524 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5525 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5526 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5530 if (print_file_name)
5532 printf ("%s\n", find_file (print_file_name));
5536 if (print_prog_name)
5538 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5539 printf ("%s\n", (newname ? newname : print_prog_name));
5543 if (print_multi_lib)
5545 print_multilib_info ();
5549 if (print_multi_directory)
5551 if (multilib_dir == NULL)
5554 printf ("%s\n", multilib_dir);
5558 if (target_help_flag)
5560 /* Print if any target specific options.*/
5562 /* We do not exit here. Instead we have created a fake input file
5563 called 'target-dummy' which needs to be compiled, and we pass this
5564 on to the various sub-processes, along with the --target-help
5568 if (print_help_list)
5574 printf (_("\nFor bug reporting instructions, please see:\n"));
5575 printf ("%s.\n", GCCBUGURL);
5580 /* We do not exit here. Instead we have created a fake input file
5581 called 'help-dummy' which needs to be compiled, and we pass this
5582 on the the various sub-processes, along with the --help switch. */
5589 notice ("Configured with: %s\n", configuration_arguments);
5591 /* compiler_version is truncated at the first space when initialized
5592 from version string, so truncate version_string at the first space
5593 before comparing. */
5594 for (n = 0; version_string[n]; n++)
5595 if (version_string[n] == ' ')
5598 if (! strncmp (version_string, compiler_version, n)
5599 && compiler_version[n] == 0)
5600 notice ("gcc version %s\n", version_string);
5602 notice ("gcc driver version %s executing gcc version %s\n",
5603 version_string, compiler_version);
5609 if (n_infiles == added_libraries)
5610 fatal ("No input files");
5612 /* Make a place to record the compiler output file names
5613 that correspond to the input files. */
5616 i += lang_specific_extra_outfiles;
5617 outfiles = (const char **) xcalloc (i, sizeof (char *));
5619 /* Record which files were specified explicitly as link input. */
5621 explicit_link_files = xcalloc (1, n_infiles);
5623 for (i = 0; (int) i < n_infiles; i++)
5625 register struct compiler *cp = 0;
5626 int this_file_error = 0;
5628 /* Tell do_spec what to substitute for %i. */
5630 input_file_number = i;
5631 set_input (infiles[i].name);
5633 /* Use the same thing in %o, unless cp->spec says otherwise. */
5635 outfiles[i] = input_filename;
5637 /* Figure out which compiler from the file's suffix. */
5639 cp = lookup_compiler (infiles[i].name, input_filename_length,
5640 infiles[i].language);
5644 /* Ok, we found an applicable compiler. Run its spec. */
5646 if (cp->spec[0] == '#')
5647 error ("%s: %s compiler not installed on this system",
5648 input_filename, &cp->spec[1]);
5649 value = do_spec (cp->spec);
5651 this_file_error = 1;
5654 /* If this file's name does not contain a recognized suffix,
5655 record it as explicit linker input. */
5658 explicit_link_files[i] = 1;
5660 /* Clear the delete-on-failure queue, deleting the files in it
5661 if this compilation failed. */
5663 if (this_file_error)
5665 delete_failure_queue ();
5668 /* If this compilation succeeded, don't delete those files later. */
5669 clear_failure_queue ();
5672 /* Reset the output file name to the first input file name, for use
5673 with %b in LINK_SPEC on a target that prefers not to emit a.out
5676 set_input (infiles[0].name);
5678 if (error_count == 0)
5680 /* Make sure INPUT_FILE_NUMBER points to first available open
5682 input_file_number = n_infiles;
5683 if (lang_specific_pre_link ())
5687 /* Run ld to link all the compiler output files. */
5689 if (error_count == 0)
5691 int tmp = execution_count;
5693 /* We'll use ld if we can't find collect2. */
5694 if (! strcmp (linker_name_spec, "collect2"))
5696 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5698 linker_name_spec = "ld";
5700 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5702 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5703 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5705 value = do_spec (link_command_spec);
5708 linker_was_run = (tmp != execution_count);
5711 /* If options said don't run linker,
5712 complain about input files to be given to the linker. */
5714 if (! linker_was_run && error_count == 0)
5715 for (i = 0; (int) i < n_infiles; i++)
5716 if (explicit_link_files[i])
5717 error ("%s: linker input file unused because linking not done",
5720 /* Delete some or all of the temporary files we made. */
5723 delete_failure_queue ();
5724 delete_temp_files ();
5726 if (print_help_list)
5728 printf (("\nFor bug reporting instructions, please see:\n"));
5729 printf ("%s\n", GCCBUGURL);
5732 return (signal_count != 0 ? 2
5733 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5737 /* Find the proper compilation spec for the file name NAME,
5738 whose length is LENGTH. LANGUAGE is the specified language,
5739 or 0 if this file is to be passed to the linker. */
5741 static struct compiler *
5742 lookup_compiler (name, length, language)
5745 const char *language;
5747 struct compiler *cp;
5749 /* If this was specified by the user to be a linker input, indicate that. */
5750 if (language != 0 && language[0] == '*')
5753 /* Otherwise, look for the language, if one is spec'd. */
5756 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5757 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5760 error ("language %s not recognized", language);
5764 /* Look for a suffix. */
5765 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5767 if (/* The suffix `-' matches only the file name `-'. */
5768 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5769 || (strlen (cp->suffix) < length
5770 /* See if the suffix matches the end of NAME. */
5771 && !strcmp (cp->suffix,
5772 name + length - strlen (cp->suffix))
5777 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5778 /* look again, but case-insensitively this time. */
5780 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5782 if (/* The suffix `-' matches only the file name `-'. */
5783 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5784 || (strlen (cp->suffix) < length
5785 /* See if the suffix matches the end of NAME. */
5786 && ((!strcmp (cp->suffix,
5787 name + length - strlen (cp->suffix))
5788 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5789 && !strcasecmp (cp->suffix,
5790 name + length - strlen (cp->suffix)))
5796 if (cp >= compilers)
5798 if (cp->spec[0] != '@')
5799 /* A non-alias entry: return it. */
5802 /* An alias entry maps a suffix to a language.
5803 Search for the language; pass 0 for NAME and LENGTH
5804 to avoid infinite recursion if language not found. */
5805 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5811 save_string (s, len)
5815 register char *result = xmalloc (len + 1);
5817 memcpy (result, s, len);
5823 pfatal_with_name (name)
5826 perror_with_name (name);
5827 delete_temp_files ();
5832 perror_with_name (name)
5835 error ("%s: %s", name, xstrerror (errno));
5839 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5840 const char *errmsg_fmt;
5841 const char *errmsg_arg;
5845 int save_errno = errno;
5847 /* Space for trailing '\0' is in %s. */
5848 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5849 sprintf (msg, errmsg_fmt, errmsg_arg);
5855 pfatal_with_name (errmsg_fmt);
5858 /* Output an error message and exit */
5863 fatal ("Internal gcc abort.");
5866 /* Output an error message and exit */
5869 fatal VPARAMS ((const char *msgid, ...))
5871 #ifndef ANSI_PROTOTYPES
5876 VA_START (ap, msgid);
5878 #ifndef ANSI_PROTOTYPES
5879 msgid = va_arg (ap, const char *);
5882 fprintf (stderr, "%s: ", programname);
5883 vfprintf (stderr, _(msgid), ap);
5885 fprintf (stderr, "\n");
5886 delete_temp_files ();
5891 error VPARAMS ((const char *msgid, ...))
5893 #ifndef ANSI_PROTOTYPES
5898 VA_START (ap, msgid);
5900 #ifndef ANSI_PROTOTYPES
5901 msgid = va_arg (ap, const char *);
5904 fprintf (stderr, "%s: ", programname);
5905 vfprintf (stderr, _(msgid), ap);
5908 fprintf (stderr, "\n");
5912 notice VPARAMS ((const char *msgid, ...))
5914 #ifndef ANSI_PROTOTYPES
5919 VA_START (ap, msgid);
5921 #ifndef ANSI_PROTOTYPES
5922 msgid = va_arg (ap, const char *);
5925 vfprintf (stderr, _(msgid), ap);
5930 validate_all_switches ()
5932 struct compiler *comp;
5933 register const char *p;
5935 struct spec_list *spec;
5937 for (comp = compilers; comp->spec; comp++)
5941 if (c == '%' && *p == '{')
5942 /* We have a switch spec. */
5943 validate_switches (p + 1);
5946 /* Look through the linked list of specs read from the specs file. */
5947 for (spec = specs; spec; spec = spec->next)
5949 p = *(spec->ptr_spec);
5951 if (c == '%' && *p == '{')
5952 /* We have a switch spec. */
5953 validate_switches (p + 1);
5956 p = link_command_spec;
5958 if (c == '%' && *p == '{')
5959 /* We have a switch spec. */
5960 validate_switches (p + 1);
5963 /* Look at the switch-name that comes after START
5964 and mark as valid all supplied switches that match it. */
5967 validate_switches (start)
5970 register const char *p = start;
5987 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
5992 else if (p[-1] == '*')
5994 /* Mark all matching switches as valid. */
5995 for (i = 0; i < n_switches; i++)
5996 if (!strncmp (switches[i].part1, filter, p - filter - 1))
5997 switches[i].validated = 1;
6001 /* Mark an exact matching switch as valid. */
6002 for (i = 0; i < n_switches; i++)
6004 if (!strncmp (switches[i].part1, filter, p - filter)
6005 && switches[i].part1[p - filter] == 0)
6006 switches[i].validated = 1;
6010 if (*p++ == '|' || p[-1] == '&')
6014 /* Check whether a particular argument was used. The first time we
6015 canonicalize the switches to keep only the ones we care about. */
6025 const char *replace;
6030 static struct mswitchstr *mswitches;
6031 static int n_mswitches;
6036 struct mswitchstr *matches;
6040 /* Break multilib_matches into the component strings of string
6041 and replacement string. */
6042 for (q = multilib_matches; *q != '\0'; q++)
6047 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6049 q = multilib_matches;
6059 matches[i].len = q - matches[i].str;
6061 matches[i].replace = ++q;
6062 while (*q != ';' && *q != '\0')
6068 matches[i].rep_len = q - matches[i].replace;
6074 /* Now build a list of the replacement string for switches that we care
6075 about. Make sure we allocate at least one entry. This prevents
6076 xmalloc from calling fatal, and prevents us from re-executing this
6079 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6080 * (n_switches ? n_switches : 1));
6081 for (i = 0; i < n_switches; i++)
6083 int xlen = strlen (switches[i].part1);
6084 for (j = 0; j < cnt; j++)
6085 if (xlen == matches[j].len
6086 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6088 mswitches[n_mswitches].str = matches[j].replace;
6089 mswitches[n_mswitches].len = matches[j].rep_len;
6090 mswitches[n_mswitches].replace = (char *) 0;
6091 mswitches[n_mswitches].rep_len = 0;
6098 for (i = 0; i < n_mswitches; i++)
6099 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6106 default_arg (p, len)
6110 const char *start, *end;
6112 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6114 while (*start == ' ' || *start == '\t')
6120 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6123 if ((end - start) == len && strncmp (p, start, len) == 0)
6133 /* Work out the subdirectory to use based on the options. The format of
6134 multilib_select is a list of elements. Each element is a subdirectory
6135 name followed by a list of options followed by a semicolon. The format
6136 of multilib_exclusions is the same, but without the preceding
6137 directory. First gcc will check the exclusions, if none of the options
6138 beginning with an exclamation point are present, and all of the other
6139 options are present, then we will ignore this completely. Passing
6140 that, gcc will consider each multilib_select in turn using the same
6141 rules for matching the options. If a match is found, that subdirectory
6148 unsigned int this_path_len;
6149 const char *this_path, *this_arg;
6153 p = multilib_exclusions;
6156 /* Ignore newlines. */
6163 /* Check the arguments. */
6177 while (*p != ' ' && *p != ';')
6184 if (*this_arg != '!')
6192 ok = used_arg (this_arg, p - this_arg);
6206 p = multilib_select;
6209 /* Ignore newlines. */
6216 /* Get the initial path. */
6224 this_path_len = p - this_path;
6226 /* Check the arguments. */
6241 while (*p != ' ' && *p != ';')
6248 if (*this_arg != '!')
6256 /* If this is a default argument, we can just ignore it.
6257 This is true even if this_arg begins with '!'. Beginning
6258 with '!' does not mean that this argument is necessarily
6259 inappropriate for this library: it merely means that
6260 there is a more specific library which uses this
6261 argument. If this argument is a default, we need not
6262 consider that more specific library. */
6263 if (! default_arg (this_arg, p - this_arg))
6265 ok = used_arg (this_arg, p - this_arg);
6276 if (this_path_len != 1
6277 || this_path[0] != '.')
6279 char *new_multilib_dir = xmalloc (this_path_len + 1);
6280 strncpy (new_multilib_dir, this_path, this_path_len);
6281 new_multilib_dir[this_path_len] = '\0';
6282 multilib_dir = new_multilib_dir;
6291 /* Print out the multiple library subdirectory selection
6292 information. This prints out a series of lines. Each line looks
6293 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6294 required. Only the desired options are printed out, the negative
6295 matches. The options are print without a leading dash. There are
6296 no spaces to make it easy to use the information in the shell.
6297 Each subdirectory is printed only once. This assumes the ordering
6298 generated by the genmultilib script. Also, we leave out ones that match
6302 print_multilib_info ()
6304 const char *p = multilib_select;
6305 const char *last_path = 0, *this_path;
6307 unsigned int last_path_len = 0;
6312 /* Ignore newlines. */
6319 /* Get the initial path. */
6328 /* Check for matches with the multilib_exclusions. We don't bother
6329 with the '!' in either list. If any of the exclusion rules match
6330 all of its options with the select rule, we skip it. */
6332 const char *e = multilib_exclusions;
6333 const char *this_arg;
6338 /* Ignore newlines. */
6345 /* Check the arguments. */
6362 while (*e != ' ' && *e != ';')
6373 int len = e - this_arg;
6380 while (*q != ' ' && *q != ';')
6387 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6388 default_arg (this_arg, e - this_arg))
6418 /* If this is a duplicate, skip it. */
6419 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6420 && ! strncmp (last_path, this_path, last_path_len));
6422 last_path = this_path;
6423 last_path_len = p - this_path;
6426 /* If this directory requires any default arguments, we can skip
6427 it. We will already have printed a directory identical to
6428 this one which does not require that default argument. */
6446 while (*q != ' ' && *q != ';')
6454 && default_arg (arg, q - arg))
6469 for (p1 = last_path; p1 < p; p1++)
6488 use_arg = *p != '!';
6493 while (*p != ' ' && *p != ';')
6508 /* If there are extra options, print them now. */
6509 if (multilib_extra && *multilib_extra)
6511 int print_at = TRUE;
6514 for (q = multilib_extra; *q != '\0'; q++)