1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001 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 *));
271 static void init_gcc_specs PARAMS ((struct obstack *,
275 /* Specs are strings containing lines, each of which (if not blank)
276 is made up of a program name, and arguments separated by spaces.
277 The program name must be exact and start from root, since no path
278 is searched and it is unreliable to depend on the current working directory.
279 Redirection of input or output is not supported; the subprograms must
280 accept filenames saying what files to read and write.
282 In addition, the specs can contain %-sequences to substitute variable text
283 or for conditional text. Here is a table of all defined %-sequences.
284 Note that spaces are not generated automatically around the results of
285 expanding these sequences; therefore, you can concatenate them together
286 or with constant text in a single argument.
288 %% substitute one % into the program name or argument.
289 %i substitute the name of the input file being processed.
290 %b substitute the basename of the input file being processed.
291 This is the substring up to (and not including) the last period
292 and not including the directory.
293 %B same as %b, but include the file suffix (text after the last period).
295 substitute a file name that has suffix SUFFIX and is chosen
296 once per compilation, and mark the argument a la %d. To reduce
297 exposure to denial-of-service attacks, the file name is now
298 chosen in a way that is hard to predict even when previously
299 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
300 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
301 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
302 had been pre-processed. Previously, %g was simply substituted
303 with a file name chosen once per compilation, without regard
304 to any appended suffix (which was therefore treated just like
305 ordinary text), making such attacks more likely to succeed.
307 like %g, but generates a new temporary file name even if %uSUFFIX
310 substitutes the last file name generated with %uSUFFIX, generating a
311 new one if there is no such last file name. In the absence of any
312 %uSUFFIX, this is just like %gSUFFIX, except they don't share
313 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
314 would involve the generation of two distinct file names, one
315 for each `%g.s' and another for each `%U.s'. Previously, %U was
316 simply substituted with a file name chosen for the previous %u,
317 without regard to any appended suffix.
319 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
320 writable, and if save-temps is off; otherwise, substitute the name
321 of a temporary file, just like %u. This temporary file is not
322 meant for communication between processes, but rather as a junk
325 substitutes .SUFFIX for the suffixes of a matched switch's args when
326 it is subsequently output with %*. SUFFIX is terminated by the next
328 %d marks the argument containing or following the %d as a
329 temporary file name, so that that file will be deleted if CC exits
330 successfully. Unlike %g, this contributes no text to the argument.
331 %w marks the argument containing or following the %w as the
332 "output file" of this compilation. This puts the argument
333 into the sequence of arguments that %o will substitute later.
335 like %{...} but mark last argument supplied within
336 as a file to be deleted on failure.
337 %o substitutes the names of all the output files, with spaces
338 automatically placed around them. You should write spaces
339 around the %o as well or the results are undefined.
340 %o is for use in the specs for running the linker.
341 Input files whose names have no recognized suffix are not compiled
342 at all, but they are included among the output files, so they will
344 %O substitutes the suffix for object files. Note that this is
345 handled specially when it immediately follows %g, %u, or %U
346 (with or without a suffix argument) because of the need for
347 those to form complete file names. The handling is such that
348 %O is treated exactly as if it had already been substituted,
349 except that %g, %u, and %U do not currently support additional
350 SUFFIX characters following %O as they would following, for
352 %p substitutes the standard macro predefinitions for the
353 current target machine. Use this when running cpp.
354 %P like %p, but puts `__' before and after the name of each macro.
355 (Except macros that already have __.)
357 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
358 %s current argument is the name of a library or startup file of some sort.
359 Search for that file in a standard list of directories
360 and substitute the full name found.
361 %eSTR Print STR as an error message. STR is terminated by a newline.
362 Use this when inconsistent options are detected.
363 %x{OPTION} Accumulate an option for %X.
364 %X Output the accumulated linker options specified by compilations.
365 %Y Output the accumulated assembler options specified by compilations.
366 %Z Output the accumulated preprocessor options specified by compilations.
367 %v1 Substitute the major version number of GCC.
368 (For version 2.5.3, this is 2.)
369 %v2 Substitute the minor version number of GCC.
370 (For version 2.5.3, this is 5.)
371 %v3 Substitute the patch level number of GCC.
372 (For version 2.5.3, this is 3.)
373 %a process ASM_SPEC as a spec.
374 This allows config.h to specify part of the spec for running as.
375 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
376 used here. This can be used to run a post-processor after the
377 assembler has done its job.
378 %D Dump out a -L option for each directory in startfile_prefixes.
379 If multilib_dir is set, extra entries are generated with it affixed.
380 %l process LINK_SPEC as a spec.
381 %L process LIB_SPEC as a spec.
382 %G process LIBGCC_SPEC as a spec.
383 %M output multilib_dir with directory separators replaced with "_";
384 if multilib_dir is not set or is ".", output "".
385 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
386 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
387 %c process SIGNED_CHAR_SPEC as a spec.
388 %C process CPP_SPEC as a spec.
389 %1 process CC1_SPEC as a spec.
390 %2 process CC1PLUS_SPEC as a spec.
391 %| output "-" if the input for the current command is coming from a pipe.
392 %* substitute the variable part of a matched option. (See below.)
393 Note that each comma in the substituted string is replaced by
395 %{S} substitutes the -S switch, if that switch was given to CC.
396 If that switch was not specified, this substitutes nothing.
397 Here S is a metasyntactic variable.
398 %{S*} substitutes all the switches specified to CC whose names start
399 with -S. This is used for -o, -I, etc; switches that take
400 arguments. CC considers `-o foo' as being one switch whose
401 name starts with `o'. %{o*} would substitute this text,
402 including the space; thus, two arguments would be generated.
403 %{^S*} likewise, but don't put a blank between a switch and any args.
404 %{S*&T*} likewise, but preserve order of S and T options (the order
405 of S and T in the spec is not significant). Can be any number
406 of ampersand-separated variables; for each the wild card is
407 optional. Useful for CPP as %{D*&U*&A*}.
408 %{S*:X} substitutes X if one or more switches whose names start with -S are
409 specified to CC. Note that the tail part of the -S option
410 (i.e. the part matched by the `*') will be substituted for each
411 occurrence of %* within X.
412 %{<S} remove all occurences of -S from the command line.
413 Note - this option is position dependent. % commands in the
414 spec string before this option will see -S, % commands in the
415 spec string after this option will not.
416 %{S:X} substitutes X, but only if the -S switch was given to CC.
417 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
418 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
419 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
420 %{.S:X} substitutes X, but only if processing a file with suffix S.
421 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
422 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
423 combined with ! and . as above binding stronger than the OR.
424 %(Spec) processes a specification defined in a specs file as *Spec:
425 %[Spec] as above, but put __ around -D arguments
427 The conditional text X in a %{S:X} or %{!S:X} construct may contain
428 other nested % constructs or spaces, or even newlines. They are
429 processed as usual, as described above.
431 The -O, -f, -m, and -W switches are handled specifically in these
432 constructs. If another value of -O or the negated form of a -f, -m, or
433 -W switch is found later in the command line, the earlier switch
434 value is ignored, except with {S*} where S is just one letter; this
435 passes all matching options.
437 The character | at the beginning of the predicate text is used to indicate
438 that a command should be piped to the following command, but only if -pipe
441 Note that it is built into CC which switches take arguments and which
442 do not. You might think it would be useful to generalize this to
443 allow each compiler's spec to say which switches take arguments. But
444 this cannot be done in a consistent fashion. CC cannot even decide
445 which input files have been specified without knowing which switches
446 take arguments, and it must know which input files to compile in order
447 to tell which compilers to run.
449 CC also knows implicitly that arguments starting in `-l' are to be
450 treated as compiler output files, and passed to the linker in their
451 proper position among the other output files. */
453 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
455 /* config.h can define ASM_SPEC to provide extra args to the assembler
456 or extra switch-translations. */
461 /* config.h can define ASM_FINAL_SPEC to run a post processor after
462 the assembler has run. */
463 #ifndef ASM_FINAL_SPEC
464 #define ASM_FINAL_SPEC ""
467 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
468 or extra switch-translations. */
473 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
474 or extra switch-translations. */
479 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
480 or extra switch-translations. */
482 #define CC1PLUS_SPEC ""
485 /* config.h can define LINK_SPEC to provide extra args to the linker
486 or extra switch-translations. */
491 /* config.h can define LIB_SPEC to override the default libraries. */
493 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
496 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
499 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
500 /* Have gcc do the search for libgcc.a. */
501 #define LIBGCC_SPEC "libgcc.a%s"
503 #define LIBGCC_SPEC "-lgcc"
507 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
508 #ifndef STARTFILE_SPEC
509 #define STARTFILE_SPEC \
510 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
513 /* config.h can define SWITCHES_NEED_SPACES to control which options
514 require spaces between the option and the argument. */
515 #ifndef SWITCHES_NEED_SPACES
516 #define SWITCHES_NEED_SPACES ""
519 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
521 #define ENDFILE_SPEC ""
524 /* This spec is used for telling cpp whether char is signed or not. */
525 #ifndef SIGNED_CHAR_SPEC
526 /* Use #if rather than ?:
527 because MIPS C compiler rejects like ?: in initializers. */
528 #if DEFAULT_SIGNED_CHAR
529 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
531 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
536 #define LINKER_NAME "collect2"
539 /* Here is the spec for running the linker, after compiling all files. */
541 /* -u* was put back because both BSD and SysV seem to support it. */
542 /* %{static:} simply prevents an error message if the target machine
543 doesn't handle -static. */
544 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
545 scripts which exist in user specified directories, or in standard
547 #ifndef LINK_COMMAND_SPEC
548 #define LINK_COMMAND_SPEC "\
549 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
550 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
551 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
552 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
553 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
556 #ifndef LINK_LIBGCC_SPEC
557 # ifdef LINK_LIBGCC_SPECIAL
558 /* Don't generate -L options for startfile prefix list. */
559 # define LINK_LIBGCC_SPEC ""
561 /* Do generate them. */
562 # define LINK_LIBGCC_SPEC "%D"
566 static const char *cpp_spec = CPP_SPEC;
567 static const char *cpp_predefines = CPP_PREDEFINES;
568 static const char *cc1_spec = CC1_SPEC;
569 static const char *cc1plus_spec = CC1PLUS_SPEC;
570 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
571 static const char *asm_spec = ASM_SPEC;
572 static const char *asm_final_spec = ASM_FINAL_SPEC;
573 static const char *link_spec = LINK_SPEC;
574 static const char *lib_spec = LIB_SPEC;
575 static const char *libgcc_spec = LIBGCC_SPEC;
576 static const char *endfile_spec = ENDFILE_SPEC;
577 static const char *startfile_spec = STARTFILE_SPEC;
578 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
579 static const char *linker_name_spec = LINKER_NAME;
580 static const char *link_command_spec = LINK_COMMAND_SPEC;
581 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
583 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
584 There should be no need to override these in target dependent files,
585 but we need to copy them to the specs file so that newer versions
586 of the GCC driver can correctly drive older tool chains with the
587 appropriate -B options. */
589 static const char *trad_capable_cpp =
590 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
592 static const char *cpp_options =
593 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
594 %{std*} %{nostdinc*}\
595 %{C} %{v} %{I*} %{P} %{$} %I\
596 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
597 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
598 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
599 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
600 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
601 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
602 %{ffast-math:-D__FAST_MATH__}\
603 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
604 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
605 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
606 %{fshow-column} %{fno-show-column}\
607 %{fleading-underscore} %{fno-leading-underscore}\
608 %{fno-operator-names} %{ftabstop=*} %{remap}\
609 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
612 /* NB: This is shared amongst all front-ends. */
613 static const char *cc1_options =
614 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
615 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
616 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
617 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
618 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
619 %{--target-help:--target-help}\
620 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
621 %{fsyntax-only:-o %j}";
623 static const char *asm_options =
624 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
626 static const char *invoke_as =
627 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
629 /* Some compilers have limits on line lengths, and the multilib_select
630 and/or multilib_matches strings can be very long, so we build them at
632 static struct obstack multilib_obstack;
633 static const char *multilib_select;
634 static const char *multilib_matches;
635 static const char *multilib_defaults;
636 static const char *multilib_exclusions;
637 #include "multilib.h"
639 /* Check whether a particular argument is a default argument. */
641 #ifndef MULTILIB_DEFAULTS
642 #define MULTILIB_DEFAULTS { "" }
645 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
649 struct user_specs *next;
650 const char *filename;
653 static struct user_specs *user_specs_head, *user_specs_tail;
655 /* This defines which switch letters take arguments. */
657 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
658 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
659 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
660 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
661 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
662 || (CHAR) == 'B' || (CHAR) == 'b')
664 #ifndef SWITCH_TAKES_ARG
665 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
668 /* This defines which multi-letter switches take arguments. */
670 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
671 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
672 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
673 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
674 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
675 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
676 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
677 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
679 #ifndef WORD_SWITCH_TAKES_ARG
680 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
683 #ifdef HAVE_EXECUTABLE_SUFFIX
684 /* This defines which switches stop a full compilation. */
685 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
686 ((CHAR) == 'c' || (CHAR) == 'S')
688 #ifndef SWITCH_CURTAILS_COMPILATION
689 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
690 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
694 /* Record the mapping from file suffixes for compilation specs. */
698 const char *suffix; /* Use this compiler for input files
699 whose names end in this suffix. */
701 const char *spec; /* To use this compiler, run this spec. */
703 const char *cpp_spec; /* If non-NULL, substitute this spec
704 for `%C', rather than the usual
708 /* Pointer to a vector of `struct compiler' that gives the spec for
709 compiling a file, based on its suffix.
710 A file that does not end in any of these suffixes will be passed
711 unchanged to the loader and nothing else will be done to it.
713 An entry containing two 0s is used to terminate the vector.
715 If multiple entries match a file, the last matching one is used. */
717 static struct compiler *compilers;
719 /* Number of entries in `compilers', not counting the null terminator. */
721 static int n_compilers;
723 /* The default list of file name suffixes and their compilation specs. */
725 static struct compiler default_compilers[] =
727 /* Add lists of suffixes of known languages here. If those languages
728 were not present when we built the driver, we will hit these copies
729 and be given a more meaningful error than "file not used since
730 linking is not done". */
731 {".m", "#Objective-C"}, {".mi", "#Objective-C"},
732 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".cp", "#C++"},
733 {".c++", "#C++"}, {".C", "#C++"}, {".ii", "#C++"},
734 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
735 {".f", "#Fortran"}, {".for", "#Fortran"}, {".fpp", "#Fortran"},
736 {".F", "#Fortran"}, {".FOR", "#Fortran"}, {".FPP", "#Fortran"},
738 {".p", "#Pascal"}, {".pas", "#Pascal"},
739 {".ch", "#Chill"}, {".chi", "#Chill"},
740 {".java", "#Java"}, {".class", "#Java"},
741 {".zip", "#Java"}, {".jar", "#Java"},
742 /* Next come the entries for C. */
745 /* cc1 has an integrated ISO C preprocessor. We should invoke the
746 external preprocessor if -save-temps or -traditional is given. */
747 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
749 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
750 %(cpp_options) %b.i \n\
751 cc1 -fpreprocessed %b.i %(cc1_options)}\
753 %{traditional|ftraditional|traditional-cpp:\
754 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
755 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
756 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
757 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
758 %{!fsyntax-only:%(invoke_as)}}}}"},
760 "%{!E:%e-E required when input is from standard input}\
761 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
764 "%{!E:%eCompilation of header file requested} \
765 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
766 {".i", "@cpp-output"},
768 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
769 {".s", "@assembler"},
771 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
772 {".S", "@assembler-with-cpp"},
773 {"@assembler-with-cpp",
774 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
775 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
777 /* Mark end of table */
781 /* Number of elements in default_compilers, not counting the terminator. */
783 static int n_default_compilers
784 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
786 /* A vector of options to give to the linker.
787 These options are accumulated by %x,
788 and substituted into the linker command with %X. */
789 static int n_linker_options;
790 static char **linker_options;
792 /* A vector of options to give to the assembler.
793 These options are accumulated by -Wa,
794 and substituted into the assembler command with %Y. */
795 static int n_assembler_options;
796 static char **assembler_options;
798 /* A vector of options to give to the preprocessor.
799 These options are accumulated by -Wp,
800 and substituted into the preprocessor command with %Z. */
801 static int n_preprocessor_options;
802 static char **preprocessor_options;
804 /* Define how to map long options into short ones. */
806 /* This structure describes one mapping. */
809 /* The long option's name. */
811 /* The equivalent short option. */
812 const char *equivalent;
813 /* Argument info. A string of flag chars; NULL equals no options.
814 a => argument required.
815 o => argument optional.
816 j => join argument to equivalent, making one word.
817 * => require other text after NAME as an argument. */
818 const char *arg_info;
821 /* This is the table of mappings. Mappings are tried sequentially
822 for each option encountered; the first one that matches, wins. */
824 struct option_map option_map[] =
826 {"--all-warnings", "-Wall", 0},
827 {"--ansi", "-ansi", 0},
828 {"--assemble", "-S", 0},
829 {"--assert", "-A", "a"},
830 {"--classpath", "-fclasspath=", "aj"},
831 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
832 {"--comments", "-C", 0},
833 {"--compile", "-c", 0},
834 {"--debug", "-g", "oj"},
835 {"--define-macro", "-D", "aj"},
836 {"--dependencies", "-M", 0},
837 {"--dump", "-d", "a"},
838 {"--dumpbase", "-dumpbase", "a"},
839 {"--entry", "-e", 0},
840 {"--extra-warnings", "-W", 0},
841 {"--for-assembler", "-Wa", "a"},
842 {"--for-linker", "-Xlinker", "a"},
843 {"--force-link", "-u", "a"},
844 {"--imacros", "-imacros", "a"},
845 {"--include", "-include", "a"},
846 {"--include-barrier", "-I-", 0},
847 {"--include-directory", "-I", "aj"},
848 {"--include-directory-after", "-idirafter", "a"},
849 {"--include-prefix", "-iprefix", "a"},
850 {"--include-with-prefix", "-iwithprefix", "a"},
851 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
852 {"--include-with-prefix-after", "-iwithprefix", "a"},
853 {"--language", "-x", "a"},
854 {"--library-directory", "-L", "a"},
855 {"--machine", "-m", "aj"},
856 {"--machine-", "-m", "*j"},
857 {"--no-line-commands", "-P", 0},
858 {"--no-precompiled-includes", "-noprecomp", 0},
859 {"--no-standard-includes", "-nostdinc", 0},
860 {"--no-standard-libraries", "-nostdlib", 0},
861 {"--no-warnings", "-w", 0},
862 {"--optimize", "-O", "oj"},
863 {"--output", "-o", "a"},
864 {"--output-class-directory", "-foutput-class-dir=", "ja"},
865 {"--pedantic", "-pedantic", 0},
866 {"--pedantic-errors", "-pedantic-errors", 0},
867 {"--pipe", "-pipe", 0},
868 {"--prefix", "-B", "a"},
869 {"--preprocess", "-E", 0},
870 {"--print-search-dirs", "-print-search-dirs", 0},
871 {"--print-file-name", "-print-file-name=", "aj"},
872 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
873 {"--print-missing-file-dependencies", "-MG", 0},
874 {"--print-multi-lib", "-print-multi-lib", 0},
875 {"--print-multi-directory", "-print-multi-directory", 0},
876 {"--print-prog-name", "-print-prog-name=", "aj"},
877 {"--profile", "-p", 0},
878 {"--profile-blocks", "-a", 0},
879 {"--quiet", "-q", 0},
880 {"--save-temps", "-save-temps", 0},
881 {"--shared", "-shared", 0},
882 {"--silent", "-q", 0},
883 {"--specs", "-specs=", "aj"},
884 {"--static", "-static", 0},
885 {"--std", "-std=", "aj"},
886 {"--symbolic", "-symbolic", 0},
887 {"--target", "-b", "a"},
888 {"--time", "-time", 0},
889 {"--trace-includes", "-H", 0},
890 {"--traditional", "-traditional", 0},
891 {"--traditional-cpp", "-traditional-cpp", 0},
892 {"--trigraphs", "-trigraphs", 0},
893 {"--undefine-macro", "-U", "aj"},
894 {"--use-version", "-V", "a"},
895 {"--user-dependencies", "-MM", 0},
896 {"--verbose", "-v", 0},
897 {"--version", "-dumpversion", 0},
898 {"--warn-", "-W", "*j"},
899 {"--write-dependencies", "-MD", 0},
900 {"--write-user-dependencies", "-MMD", 0},
904 /* Translate the options described by *ARGCP and *ARGVP.
905 Make a new vector and store it back in *ARGVP,
906 and store its length in *ARGVC. */
909 translate_options (argcp, argvp)
911 const char *const **argvp;
915 const char *const *argv = *argvp;
917 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
921 newv[newindex++] = argv[i++];
925 /* Translate -- options. */
926 if (argv[i][0] == '-' && argv[i][1] == '-')
929 /* Find a mapping that applies to this option. */
930 for (j = 0; j < ARRAY_SIZE (option_map); j++)
932 size_t optlen = strlen (option_map[j].name);
933 size_t arglen = strlen (argv[i]);
934 size_t complen = arglen > optlen ? optlen : arglen;
935 const char *arginfo = option_map[j].arg_info;
940 if (!strncmp (argv[i], option_map[j].name, complen))
947 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
948 if (strlen (option_map[k].name) >= arglen
949 && !strncmp (argv[i], option_map[k].name, arglen))
951 error ("Ambiguous abbreviation %s", argv[i]);
955 if (k != ARRAY_SIZE (option_map))
961 /* If the option has an argument, accept that. */
962 if (argv[i][optlen] == '=')
963 arg = argv[i] + optlen + 1;
965 /* If this mapping requires extra text at end of name,
966 accept that as "argument". */
967 else if (strchr (arginfo, '*') != 0)
968 arg = argv[i] + optlen;
970 /* Otherwise, extra text at end means mismatch.
971 Try other mappings. */
976 else if (strchr (arginfo, '*') != 0)
978 error ("Incomplete `%s' option", option_map[j].name);
982 /* Handle arguments. */
983 if (strchr (arginfo, 'a') != 0)
989 error ("Missing argument to `%s' option",
997 else if (strchr (arginfo, '*') != 0)
999 else if (strchr (arginfo, 'o') == 0)
1002 error ("Extraneous argument to `%s' option",
1003 option_map[j].name);
1007 /* Store the translation as one argv elt or as two. */
1008 if (arg != 0 && strchr (arginfo, 'j') != 0)
1009 newv[newindex++] = concat (option_map[j].equivalent, arg,
1013 newv[newindex++] = option_map[j].equivalent;
1014 newv[newindex++] = arg;
1017 newv[newindex++] = option_map[j].equivalent;
1025 /* Handle old-fashioned options--just copy them through,
1026 with their arguments. */
1027 else if (argv[i][0] == '-')
1029 const char *p = argv[i] + 1;
1033 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1034 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1035 else if (WORD_SWITCH_TAKES_ARG (p))
1036 nskip += WORD_SWITCH_TAKES_ARG (p);
1037 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1040 else if (! strcmp (p, "Xlinker"))
1043 /* Watch out for an option at the end of the command line that
1044 is missing arguments, and avoid skipping past the end of the
1046 if (nskip + i > argc)
1051 newv[newindex++] = argv[i++];
1056 /* Ordinary operands, or +e options. */
1057 newv[newindex++] = argv[i++];
1072 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1073 be considered whitespace. */
1074 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1076 else if (*p == '\n' || *p == ' ' || *p == '\t')
1090 /* Structures to keep track of prefixes to try when looking for files. */
1094 char *prefix; /* String to prepend to the path. */
1095 struct prefix_list *next; /* Next in linked list. */
1096 int require_machine_suffix; /* Don't use without machine_suffix. */
1097 /* 2 means try both machine_suffix and just_machine_suffix. */
1098 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1099 int priority; /* Sort key - priority within list */
1104 struct prefix_list *plist; /* List of prefixes to try */
1105 int max_len; /* Max length of a prefix in PLIST */
1106 const char *name; /* Name of this list (used in config stuff) */
1109 /* List of prefixes to try when looking for executables. */
1111 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1113 /* List of prefixes to try when looking for startup (crt0) files. */
1115 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1117 /* List of prefixes to try when looking for include files. */
1119 static struct path_prefix include_prefixes = { 0, 0, "include" };
1121 /* Suffix to attach to directories searched for commands.
1122 This looks like `MACHINE/VERSION/'. */
1124 static const char *machine_suffix = 0;
1126 /* Suffix to attach to directories searched for commands.
1127 This is just `MACHINE/'. */
1129 static const char *just_machine_suffix = 0;
1131 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1133 static const char *gcc_exec_prefix;
1135 /* Default prefixes to attach to command names. */
1137 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1138 #undef MD_EXEC_PREFIX
1139 #undef MD_STARTFILE_PREFIX
1140 #undef MD_STARTFILE_PREFIX_1
1143 /* If no prefixes defined, use the null string, which will disable them. */
1144 #ifndef MD_EXEC_PREFIX
1145 #define MD_EXEC_PREFIX ""
1147 #ifndef MD_STARTFILE_PREFIX
1148 #define MD_STARTFILE_PREFIX ""
1150 #ifndef MD_STARTFILE_PREFIX_1
1151 #define MD_STARTFILE_PREFIX_1 ""
1154 /* Supply defaults for the standard prefixes. */
1156 #ifndef STANDARD_EXEC_PREFIX
1157 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1159 #ifndef STANDARD_STARTFILE_PREFIX
1160 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1162 #ifndef TOOLDIR_BASE_PREFIX
1163 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1165 #ifndef STANDARD_BINDIR_PREFIX
1166 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1169 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1170 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1171 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1173 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1174 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1175 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1176 static const char *standard_startfile_prefix_1 = "/lib/";
1177 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1179 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1180 static const char *tooldir_prefix;
1182 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1184 /* Subdirectory to use for locating libraries. Set by
1185 set_multilib_dir based on the compilation options. */
1187 static const char *multilib_dir;
1189 /* Structure to keep track of the specs that have been defined so far.
1190 These are accessed using %(specname) or %[specname] in a compiler
1195 /* The following 2 fields must be first */
1196 /* to allow EXTRA_SPECS to be initialized */
1197 const char *name; /* name of the spec. */
1198 const char *ptr; /* available ptr if no static pointer */
1200 /* The following fields are not initialized */
1201 /* by EXTRA_SPECS */
1202 const char **ptr_spec; /* pointer to the spec itself. */
1203 struct spec_list *next; /* Next spec in linked list. */
1204 int name_len; /* length of the name */
1205 int alloc_p; /* whether string was allocated */
1208 #define INIT_STATIC_SPEC(NAME,PTR) \
1209 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1211 /* List of statically defined specs. */
1212 static struct spec_list static_specs[] =
1214 INIT_STATIC_SPEC ("asm", &asm_spec),
1215 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1216 INIT_STATIC_SPEC ("asm_options", &asm_options),
1217 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1218 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1219 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1220 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1221 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1222 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1223 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1224 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1225 INIT_STATIC_SPEC ("link", &link_spec),
1226 INIT_STATIC_SPEC ("lib", &lib_spec),
1227 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1228 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1229 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1230 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1231 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1232 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1233 INIT_STATIC_SPEC ("version", &compiler_version),
1234 INIT_STATIC_SPEC ("multilib", &multilib_select),
1235 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1236 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1237 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1238 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1239 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1240 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1241 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1242 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1243 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1246 #ifdef EXTRA_SPECS /* additional specs needed */
1247 /* Structure to keep track of just the first two args of a spec_list.
1248 That is all that the EXTRA_SPECS macro gives us. */
1255 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1256 static struct spec_list *extra_specs = (struct spec_list *) 0;
1259 /* List of dynamically allocates specs that have been defined so far. */
1261 static struct spec_list *specs = (struct spec_list *) 0;
1263 /* Add appropriate libgcc specs to OBSTACK, taking into account
1264 various permutations of -shared-libgcc, -shared, and such. */
1267 init_gcc_specs (obstack, shared_name, static_name)
1268 struct obstack *obstack;
1269 const char *shared_name;
1270 const char *static_name;
1274 /* If we see -shared-libgcc, then use the shared version. */
1275 sprintf (buffer, "%%{shared-libgcc:%s}", shared_name);
1276 obstack_grow (obstack, buffer, strlen (buffer));
1277 /* If we see -static-libgcc, then use the shared version. */
1278 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1279 obstack_grow (obstack, buffer, strlen (buffer));
1280 /* Otherwise, if we see -shared, then use the shared version. */
1282 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s}}}",
1284 obstack_grow (obstack, buffer, strlen (buffer));
1285 /* Otherwise, use the static version. */
1287 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1289 obstack_grow (obstack, buffer, strlen (buffer));
1292 /* Initialize the specs lookup routines. */
1297 struct spec_list *next = (struct spec_list *) 0;
1298 struct spec_list *sl = (struct spec_list *) 0;
1302 return; /* Already initialized. */
1305 notice ("Using builtin specs.\n");
1308 extra_specs = (struct spec_list *)
1309 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1311 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1313 sl = &extra_specs[i];
1314 sl->name = extra_specs_1[i].name;
1315 sl->ptr = extra_specs_1[i].ptr;
1317 sl->name_len = strlen (sl->name);
1318 sl->ptr_spec = &sl->ptr;
1323 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1325 sl = &static_specs[i];
1330 #ifdef ENABLE_SHARED_LIBGCC
1331 /* ??? If neither -shared-libgcc nor --static-libgcc was
1332 seen, then we should be making an educated guess. Some proposed
1333 heuristics for ELF include:
1335 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1336 program will be doing dynamic loading, which will likely
1337 need the shared libgcc.
1339 (2) If "-ldl", then it's also a fair bet that we're doing
1342 (3) For each ET_DYN we're linking against (either through -lfoo
1343 or /some/path/foo.so), check to see whether it or one of
1344 its dependancies depends on a shared libgcc.
1348 If the runtime is fixed to look for program headers instead
1349 of calling __register_frame_info at all, for each object,
1350 use the shared libgcc if any EH symbol referenced.
1352 If crtstuff is fixed to not invoke __register_frame_info
1353 automatically, for each object, use the shared libgcc if
1354 any non-empty unwind section found.
1356 Doing any of this probably requires invoking an external program to
1357 do the actual object file scanning. */
1359 const char *p = libgcc_spec;
1362 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1363 when given the proper command line arguments. */
1366 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1368 init_gcc_specs (&obstack,
1369 #ifdef NO_SHARED_LIBGCC_MULTILIB
1379 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1381 /* Ug. We don't know shared library extensions. Hope that
1382 systems that use this form don't do shared libraries. */
1383 init_gcc_specs (&obstack,
1384 #ifdef NO_SHARED_LIBGCC_MULTILIB
1396 obstack_1grow (&obstack, *p);
1397 in_sep = (*p == ' ');
1402 obstack_1grow (&obstack, '\0');
1403 libgcc_spec = obstack_finish (&obstack);
1410 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1411 removed; If the spec starts with a + then SPEC is added to the end of the
1415 set_spec (name, spec)
1419 struct spec_list *sl;
1420 const char *old_spec;
1421 int name_len = strlen (name);
1424 /* If this is the first call, initialize the statically allocated specs. */
1427 struct spec_list *next = (struct spec_list *) 0;
1428 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1430 sl = &static_specs[i];
1437 /* See if the spec already exists. */
1438 for (sl = specs; sl; sl = sl->next)
1439 if (name_len == sl->name_len && !strcmp (sl->name, name))
1444 /* Not found - make it. */
1445 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1446 sl->name = xstrdup (name);
1447 sl->name_len = name_len;
1448 sl->ptr_spec = &sl->ptr;
1450 *(sl->ptr_spec) = "";
1455 old_spec = *(sl->ptr_spec);
1456 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1457 ? concat (old_spec, spec + 1, NULL_PTR)
1462 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1465 /* Free the old spec. */
1466 if (old_spec && sl->alloc_p)
1467 free ((PTR) old_spec);
1472 /* Accumulate a command (program name and args), and run it. */
1474 /* Vector of pointers to arguments in the current line of specifications. */
1476 static const char **argbuf;
1478 /* Number of elements allocated in argbuf. */
1480 static int argbuf_length;
1482 /* Number of elements in argbuf currently in use (containing args). */
1484 static int argbuf_index;
1486 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1487 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1490 static struct temp_name {
1491 const char *suffix; /* suffix associated with the code. */
1492 int length; /* strlen (suffix). */
1493 int unique; /* Indicates whether %g or %u/%U was used. */
1494 const char *filename; /* associated filename. */
1495 int filename_length; /* strlen (filename). */
1496 struct temp_name *next;
1499 /* Number of commands executed so far. */
1501 static int execution_count;
1503 /* Number of commands that exited with a signal. */
1505 static int signal_count;
1507 /* Name with which this program was invoked. */
1509 static const char *programname;
1511 /* Clear out the vector of arguments (after a command is executed). */
1519 /* Add one argument to the vector at the end.
1520 This is done when a space is seen or at the end of the line.
1521 If DELETE_ALWAYS is nonzero, the arg is a filename
1522 and the file should be deleted eventually.
1523 If DELETE_FAILURE is nonzero, the arg is a filename
1524 and the file should be deleted if this compilation fails. */
1527 store_arg (arg, delete_always, delete_failure)
1529 int delete_always, delete_failure;
1531 if (argbuf_index + 1 == argbuf_length)
1533 = (const char **) xrealloc (argbuf,
1534 (argbuf_length *= 2) * sizeof (const char *));
1536 argbuf[argbuf_index++] = arg;
1537 argbuf[argbuf_index] = 0;
1539 if (delete_always || delete_failure)
1540 record_temp_file (arg, delete_always, delete_failure);
1543 /* Load specs from a file name named FILENAME, replacing occurances of
1544 various different types of line-endings, \r\n, \n\r and just \r, with
1548 load_specs (filename)
1549 const char *filename;
1553 struct stat statbuf;
1560 notice ("Reading specs from %s\n", filename);
1562 /* Open and stat the file. */
1563 desc = open (filename, O_RDONLY, 0);
1565 pfatal_with_name (filename);
1566 if (stat (filename, &statbuf) < 0)
1567 pfatal_with_name (filename);
1569 /* Read contents of file into BUFFER. */
1570 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1571 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1573 pfatal_with_name (filename);
1574 buffer[readlen] = 0;
1577 specs = xmalloc (readlen + 1);
1579 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1585 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1587 else if (*(buffer_p + 1) == '\n') /* \r\n */
1601 /* Read compilation specs from a file named FILENAME,
1602 replacing the default ones.
1604 A suffix which starts with `*' is a definition for
1605 one of the machine-specific sub-specs. The "suffix" should be
1606 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1607 The corresponding spec is stored in asm_spec, etc.,
1608 rather than in the `compilers' vector.
1610 Anything invalid in the file is a fatal error. */
1613 read_specs (filename, main_p)
1614 const char *filename;
1620 buffer = load_specs (filename);
1622 /* Scan BUFFER for specs, putting them in the vector. */
1628 char *in, *out, *p1, *p2, *p3;
1630 /* Advance P in BUFFER to the next nonblank nocomment line. */
1631 p = skip_whitespace (p);
1635 /* Is this a special command that starts with '%'? */
1636 /* Don't allow this for the main specs file, since it would
1637 encourage people to overwrite it. */
1638 if (*p == '%' && !main_p)
1641 while (*p && *p != '\n')
1647 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1648 && (p1[sizeof "%include" - 1] == ' '
1649 || p1[sizeof "%include" - 1] == '\t'))
1653 p1 += sizeof ("%include");
1654 while (*p1 == ' ' || *p1 == '\t')
1657 if (*p1++ != '<' || p[-2] != '>')
1658 fatal ("specs %%include syntax malformed after %ld characters",
1659 (long) (p1 - buffer + 1));
1662 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1663 read_specs (new_filename ? new_filename : p1, FALSE);
1666 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1667 && (p1[sizeof "%include_noerr" - 1] == ' '
1668 || p1[sizeof "%include_noerr" - 1] == '\t'))
1672 p1 += sizeof "%include_noerr";
1673 while (*p1 == ' ' || *p1 == '\t')
1676 if (*p1++ != '<' || p[-2] != '>')
1677 fatal ("specs %%include syntax malformed after %ld characters",
1678 (long) (p1 - buffer + 1));
1681 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1683 read_specs (new_filename, FALSE);
1684 else if (verbose_flag)
1685 notice ("Could not find specs file %s\n", p1);
1688 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1689 && (p1[sizeof "%rename" - 1] == ' '
1690 || p1[sizeof "%rename" - 1] == '\t'))
1693 struct spec_list *sl;
1695 /* Get original name */
1696 p1 += sizeof "%rename";
1697 while (*p1 == ' ' || *p1 == '\t')
1700 if (! ISALPHA ((unsigned char) *p1))
1701 fatal ("specs %%rename syntax malformed after %ld characters",
1702 (long) (p1 - buffer));
1705 while (*p2 && !ISSPACE ((unsigned char) *p2))
1708 if (*p2 != ' ' && *p2 != '\t')
1709 fatal ("specs %%rename syntax malformed after %ld characters",
1710 (long) (p2 - buffer));
1714 while (*p2 == ' ' || *p2 == '\t')
1717 if (! ISALPHA ((unsigned char) *p2))
1718 fatal ("specs %%rename syntax malformed after %ld characters",
1719 (long) (p2 - buffer));
1721 /* Get new spec name. */
1723 while (*p3 && !ISSPACE ((unsigned char) *p3))
1727 fatal ("specs %%rename syntax malformed after %ld characters",
1728 (long) (p3 - buffer));
1731 for (sl = specs; sl; sl = sl->next)
1732 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1736 fatal ("specs %s spec was not found to be renamed", p1);
1738 if (strcmp (p1, p2) == 0)
1743 notice ("rename spec %s to %s\n", p1, p2);
1745 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1749 set_spec (p2, *(sl->ptr_spec));
1751 free ((PTR) *(sl->ptr_spec));
1753 *(sl->ptr_spec) = "";
1758 fatal ("specs unknown %% command after %ld characters",
1759 (long) (p1 - buffer));
1762 /* Find the colon that should end the suffix. */
1764 while (*p1 && *p1 != ':' && *p1 != '\n')
1767 /* The colon shouldn't be missing. */
1769 fatal ("specs file malformed after %ld characters",
1770 (long) (p1 - buffer));
1772 /* Skip back over trailing whitespace. */
1774 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1777 /* Copy the suffix to a string. */
1778 suffix = save_string (p, p2 - p);
1779 /* Find the next line. */
1780 p = skip_whitespace (p1 + 1);
1782 fatal ("specs file malformed after %ld characters",
1783 (long) (p - buffer));
1786 /* Find next blank line or end of string. */
1787 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1790 /* Specs end at the blank line and do not include the newline. */
1791 spec = save_string (p, p1 - p);
1794 /* Delete backslash-newline sequences from the spec. */
1799 if (in[0] == '\\' && in[1] == '\n')
1801 else if (in[0] == '#')
1802 while (*in && *in != '\n')
1810 if (suffix[0] == '*')
1812 if (! strcmp (suffix, "*link_command"))
1813 link_command_spec = spec;
1815 set_spec (suffix + 1, spec);
1819 /* Add this pair to the vector. */
1821 = ((struct compiler *)
1822 xrealloc (compilers,
1823 (n_compilers + 2) * sizeof (struct compiler)));
1825 compilers[n_compilers].suffix = suffix;
1826 compilers[n_compilers].spec = spec;
1828 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1832 link_command_spec = spec;
1835 if (link_command_spec == 0)
1836 fatal ("spec file has no spec for linking");
1839 /* Record the names of temporary files we tell compilers to write,
1840 and delete them at the end of the run. */
1842 /* This is the common prefix we use to make temp file names.
1843 It is chosen once for each run of this program.
1844 It is substituted into a spec by %g or %j.
1845 Thus, all temp file names contain this prefix.
1846 In practice, all temp file names start with this prefix.
1848 This prefix comes from the envvar TMPDIR if it is defined;
1849 otherwise, from the P_tmpdir macro if that is defined;
1850 otherwise, in /usr/tmp or /tmp;
1851 or finally the current directory if all else fails. */
1853 static const char *temp_filename;
1855 /* Length of the prefix. */
1857 static int temp_filename_length;
1859 /* Define the list of temporary files to delete. */
1864 struct temp_file *next;
1867 /* Queue of files to delete on success or failure of compilation. */
1868 static struct temp_file *always_delete_queue;
1869 /* Queue of files to delete on failure of compilation. */
1870 static struct temp_file *failure_delete_queue;
1872 /* Record FILENAME as a file to be deleted automatically.
1873 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1874 otherwise delete it in any case.
1875 FAIL_DELETE nonzero means delete it if a compilation step fails;
1876 otherwise delete it in any case. */
1879 record_temp_file (filename, always_delete, fail_delete)
1880 const char *filename;
1884 register char *const name = xstrdup (filename);
1888 register struct temp_file *temp;
1889 for (temp = always_delete_queue; temp; temp = temp->next)
1890 if (! strcmp (name, temp->name))
1893 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1894 temp->next = always_delete_queue;
1896 always_delete_queue = temp;
1903 register struct temp_file *temp;
1904 for (temp = failure_delete_queue; temp; temp = temp->next)
1905 if (! strcmp (name, temp->name))
1908 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1909 temp->next = failure_delete_queue;
1911 failure_delete_queue = temp;
1917 /* Delete all the temporary files whose names we previously recorded. */
1920 delete_if_ordinary (name)
1927 printf ("Delete %s? (y or n) ", name);
1931 while ((c = getchar ()) != '\n' && c != EOF)
1934 if (i == 'y' || i == 'Y')
1936 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1937 if (unlink (name) < 0)
1939 perror_with_name (name);
1943 delete_temp_files ()
1945 register struct temp_file *temp;
1947 for (temp = always_delete_queue; temp; temp = temp->next)
1948 delete_if_ordinary (temp->name);
1949 always_delete_queue = 0;
1952 /* Delete all the files to be deleted on error. */
1955 delete_failure_queue ()
1957 register struct temp_file *temp;
1959 for (temp = failure_delete_queue; temp; temp = temp->next)
1960 delete_if_ordinary (temp->name);
1964 clear_failure_queue ()
1966 failure_delete_queue = 0;
1969 /* Routine to add variables to the environment. We do this to pass
1970 the pathname of the gcc driver, and the directories search to the
1971 collect2 program, which is being run as ld. This way, we can be
1972 sure of executing the right compiler when collect2 wants to build
1973 constructors and destructors. Since the environment variables we
1974 use come from an obstack, we don't have to worry about allocating
1983 #ifndef VMS /* nor about VMS */
1985 extern char **environ;
1986 char **old_environ = environ;
1990 int str_len = strlen (str);
1994 while ((ch = *p++) != '\0' && ch != '=')
2000 /* Search for replacing an existing environment variable, and
2001 count the number of total environment variables. */
2002 for (envp = old_environ; *envp; envp++)
2005 if (!strncmp (str, *envp, name_len))
2012 /* Add a new environment variable */
2013 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
2015 memcpy ((char *) (environ + 1), (char *) old_environ,
2016 sizeof (char *) * (num_envs + 1));
2021 #endif /* HAVE_PUTENV */
2023 /* Build a list of search directories from PATHS.
2024 PREFIX is a string to prepend to the list.
2025 If CHECK_DIR_P is non-zero we ensure the directory exists.
2026 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2027 It is also used by the --print-search-dirs flag. */
2030 build_search_list (paths, prefix, check_dir_p)
2031 struct path_prefix *paths;
2035 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2037 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2038 int first_time = TRUE;
2039 struct prefix_list *pprefix;
2041 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2042 obstack_1grow (&collect_obstack, '=');
2044 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2046 int len = strlen (pprefix->prefix);
2050 || is_directory (pprefix->prefix, machine_suffix, 0)))
2053 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2056 obstack_grow (&collect_obstack, pprefix->prefix, len);
2057 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2060 if (just_machine_suffix
2061 && pprefix->require_machine_suffix == 2
2063 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2066 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2069 obstack_grow (&collect_obstack, pprefix->prefix, len);
2070 obstack_grow (&collect_obstack, just_machine_suffix,
2074 if (! pprefix->require_machine_suffix)
2077 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2080 obstack_grow (&collect_obstack, pprefix->prefix, len);
2084 obstack_1grow (&collect_obstack, '\0');
2085 return obstack_finish (&collect_obstack);
2088 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2092 putenv_from_prefixes (paths, env_var)
2093 struct path_prefix *paths;
2094 const char *env_var;
2096 putenv (build_search_list (paths, env_var, 1));
2101 /* FIXME: the location independence code for VMS is hairier than this,
2102 and hasn't been written. */
2104 /* Split a filename into component directories. */
2107 split_directories (name, ptr_num_dirs)
2116 /* Count the number of directories. Special case MSDOS disk names as part
2117 of the initial directory. */
2119 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2120 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2125 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2127 while ((ch = *p++) != '\0')
2129 if (IS_DIR_SEPARATOR (ch))
2132 while (IS_DIR_SEPARATOR (*p))
2137 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2139 /* Now copy the directory parts. */
2142 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2143 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2145 dirs[num_dirs++] = save_string (p, 3);
2148 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2151 while ((ch = *p++) != '\0')
2153 if (IS_DIR_SEPARATOR (ch))
2155 while (IS_DIR_SEPARATOR (*p))
2158 dirs[num_dirs++] = save_string (q, p - q);
2164 dirs[num_dirs++] = save_string (q, p - 1 - q);
2166 dirs[num_dirs] = NULL_PTR;
2168 *ptr_num_dirs = num_dirs;
2173 /* Release storage held by split directories. */
2176 free_split_directories (dirs)
2181 while (dirs[i] != NULL_PTR)
2184 free ((char *) dirs);
2187 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2188 to PREFIX starting with the directory portion of PROGNAME and a relative
2189 pathname of the difference between BIN_PREFIX and PREFIX.
2191 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2192 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2193 function will return /red/green/blue/../omega.
2195 If no relative prefix can be found, return NULL. */
2198 make_relative_prefix (progname, bin_prefix, prefix)
2199 const char *progname;
2200 const char *bin_prefix;
2203 char **prog_dirs, **bin_dirs, **prefix_dirs;
2204 int prog_num, bin_num, prefix_num, std_loc_p;
2207 prog_dirs = split_directories (progname, &prog_num);
2208 bin_dirs = split_directories (bin_prefix, &bin_num);
2210 /* If there is no full pathname, try to find the program by checking in each
2211 of the directories specified in the PATH environment variable. */
2216 GET_ENV_PATH_LIST (temp, "PATH");
2219 char *startp, *endp;
2220 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2222 startp = endp = temp;
2225 if (*endp == PATH_SEPARATOR || *endp == 0)
2230 nstore[1] = DIR_SEPARATOR;
2235 strncpy (nstore, startp, endp - startp);
2236 if (! IS_DIR_SEPARATOR (endp[-1]))
2238 nstore[endp - startp] = DIR_SEPARATOR;
2239 nstore[endp - startp + 1] = 0;
2242 nstore[endp - startp] = 0;
2244 strcat (nstore, progname);
2245 if (! access (nstore, X_OK)
2246 #ifdef HAVE_EXECUTABLE_SUFFIX
2247 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2251 free_split_directories (prog_dirs);
2253 prog_dirs = split_directories (progname, &prog_num);
2259 endp = startp = endp + 1;
2267 /* Remove the program name from comparison of directory names. */
2270 /* Determine if the compiler is installed in the standard location, and if
2271 so, we don't need to specify relative directories. Also, if argv[0]
2272 doesn't contain any directory specifiers, there is not much we can do. */
2274 if (prog_num == bin_num)
2276 for (i = 0; i < bin_num; i++)
2278 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2282 if (prog_num <= 0 || i == bin_num)
2285 free_split_directories (prog_dirs);
2286 free_split_directories (bin_dirs);
2287 prog_dirs = bin_dirs = (char **) 0;
2292 prefix_dirs = split_directories (prefix, &prefix_num);
2294 /* Find how many directories are in common between bin_prefix & prefix. */
2295 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2296 for (common = 0; common < n; common++)
2298 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2302 /* If there are no common directories, there can be no relative prefix. */
2305 free_split_directories (prog_dirs);
2306 free_split_directories (bin_dirs);
2307 free_split_directories (prefix_dirs);
2311 /* Build up the pathnames in argv[0]. */
2312 for (i = 0; i < prog_num; i++)
2313 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2315 /* Now build up the ..'s. */
2316 for (i = common; i < n; i++)
2318 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2319 obstack_1grow (&obstack, DIR_SEPARATOR);
2322 /* Put in directories to move over to prefix. */
2323 for (i = common; i < prefix_num; i++)
2324 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2326 free_split_directories (prog_dirs);
2327 free_split_directories (bin_dirs);
2328 free_split_directories (prefix_dirs);
2330 obstack_1grow (&obstack, '\0');
2331 return obstack_finish (&obstack);
2335 /* Check whether NAME can be accessed in MODE. This is like access,
2336 except that it never considers directories to be executable. */
2339 access_check (name, mode)
2347 if (stat (name, &st) < 0
2348 || S_ISDIR (st.st_mode))
2352 return access (name, mode);
2355 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2356 access to check permissions.
2357 Return 0 if not found, otherwise return its name, allocated with malloc. */
2360 find_a_file (pprefix, name, mode)
2361 struct path_prefix *pprefix;
2366 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2367 struct prefix_list *pl;
2368 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2370 #ifdef DEFAULT_ASSEMBLER
2371 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2372 return xstrdup (DEFAULT_ASSEMBLER);
2375 #ifdef DEFAULT_LINKER
2376 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2377 return xstrdup (DEFAULT_LINKER);
2381 len += strlen (machine_suffix);
2383 temp = xmalloc (len);
2385 /* Determine the filename to execute (special case for absolute paths). */
2387 if (IS_ABSOLUTE_PATHNAME (name))
2389 if (access (name, mode) == 0)
2391 strcpy (temp, name);
2396 for (pl = pprefix->plist; pl; pl = pl->next)
2400 /* Some systems have a suffix for executable files.
2401 So try appending that first. */
2402 if (file_suffix[0] != 0)
2404 strcpy (temp, pl->prefix);
2405 strcat (temp, machine_suffix);
2406 strcat (temp, name);
2407 strcat (temp, file_suffix);
2408 if (access_check (temp, mode) == 0)
2410 if (pl->used_flag_ptr != 0)
2411 *pl->used_flag_ptr = 1;
2416 /* Now try just the name. */
2417 strcpy (temp, pl->prefix);
2418 strcat (temp, machine_suffix);
2419 strcat (temp, name);
2420 if (access_check (temp, mode) == 0)
2422 if (pl->used_flag_ptr != 0)
2423 *pl->used_flag_ptr = 1;
2428 /* Certain prefixes are tried with just the machine type,
2429 not the version. This is used for finding as, ld, etc. */
2430 if (just_machine_suffix && pl->require_machine_suffix == 2)
2432 /* Some systems have a suffix for executable files.
2433 So try appending that first. */
2434 if (file_suffix[0] != 0)
2436 strcpy (temp, pl->prefix);
2437 strcat (temp, just_machine_suffix);
2438 strcat (temp, name);
2439 strcat (temp, file_suffix);
2440 if (access_check (temp, mode) == 0)
2442 if (pl->used_flag_ptr != 0)
2443 *pl->used_flag_ptr = 1;
2448 strcpy (temp, pl->prefix);
2449 strcat (temp, just_machine_suffix);
2450 strcat (temp, name);
2451 if (access_check (temp, mode) == 0)
2453 if (pl->used_flag_ptr != 0)
2454 *pl->used_flag_ptr = 1;
2459 /* Certain prefixes can't be used without the machine suffix
2460 when the machine or version is explicitly specified. */
2461 if (! pl->require_machine_suffix)
2463 /* Some systems have a suffix for executable files.
2464 So try appending that first. */
2465 if (file_suffix[0] != 0)
2467 strcpy (temp, pl->prefix);
2468 strcat (temp, name);
2469 strcat (temp, file_suffix);
2470 if (access_check (temp, mode) == 0)
2472 if (pl->used_flag_ptr != 0)
2473 *pl->used_flag_ptr = 1;
2478 strcpy (temp, pl->prefix);
2479 strcat (temp, name);
2480 if (access_check (temp, mode) == 0)
2482 if (pl->used_flag_ptr != 0)
2483 *pl->used_flag_ptr = 1;
2493 /* Ranking of prefixes in the sort list. -B prefixes are put before
2496 enum path_prefix_priority
2498 PREFIX_PRIORITY_B_OPT,
2499 PREFIX_PRIORITY_LAST
2502 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2503 order according to PRIORITY. Within each PRIORITY, new entries are
2506 If WARN is nonzero, we will warn if no file is found
2507 through this prefix. WARN should point to an int
2508 which will be set to 1 if this entry is used.
2510 COMPONENT is the value to be passed to update_path.
2512 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2513 the complete value of machine_suffix.
2514 2 means try both machine_suffix and just_machine_suffix. */
2517 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2518 struct path_prefix *pprefix;
2520 const char *component;
2521 /* enum prefix_priority */ int priority;
2522 int require_machine_suffix;
2525 struct prefix_list *pl, **prev;
2528 for (prev = &pprefix->plist;
2529 (*prev) != NULL && (*prev)->priority <= priority;
2530 prev = &(*prev)->next)
2533 /* Keep track of the longest prefix */
2535 prefix = update_path (prefix, component);
2536 len = strlen (prefix);
2537 if (len > pprefix->max_len)
2538 pprefix->max_len = len;
2540 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2541 pl->prefix = save_string (prefix, len);
2542 pl->require_machine_suffix = require_machine_suffix;
2543 pl->used_flag_ptr = warn;
2544 pl->priority = priority;
2548 /* Insert after PREV */
2553 /* Execute the command specified by the arguments on the current line of spec.
2554 When using pipes, this includes several piped-together commands
2555 with `|' between them.
2557 Return 0 if successful, -1 if failed. */
2563 int n_commands; /* # of command. */
2567 const char *prog; /* program name. */
2568 const char **argv; /* vector of args. */
2569 int pid; /* pid of process for this command. */
2572 struct command *commands; /* each command buffer with above info. */
2574 /* Count # of piped commands. */
2575 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2576 if (strcmp (argbuf[i], "|") == 0)
2579 /* Get storage for each command. */
2580 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2582 /* Split argbuf into its separate piped processes,
2583 and record info about each one.
2584 Also search for the programs that are to be run. */
2586 commands[0].prog = argbuf[0]; /* first command. */
2587 commands[0].argv = &argbuf[0];
2588 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2591 commands[0].argv[0] = string;
2593 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2594 if (strcmp (argbuf[i], "|") == 0)
2595 { /* each command. */
2596 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2597 fatal ("-pipe not supported");
2599 argbuf[i] = 0; /* termination of command args. */
2600 commands[n_commands].prog = argbuf[i + 1];
2601 commands[n_commands].argv = &argbuf[i + 1];
2602 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2604 commands[n_commands].argv[0] = string;
2608 argbuf[argbuf_index] = 0;
2610 /* If -v, print what we are about to do, and maybe query. */
2614 /* For help listings, put a blank line between sub-processes. */
2615 if (print_help_list)
2616 fputc ('\n', stderr);
2618 /* Print each piped command as a separate line. */
2619 for (i = 0; i < n_commands; i++)
2621 const char *const *j;
2623 for (j = commands[i].argv; *j; j++)
2624 fprintf (stderr, " %s", *j);
2626 /* Print a pipe symbol after all but the last command. */
2627 if (i + 1 != n_commands)
2628 fprintf (stderr, " |");
2629 fprintf (stderr, "\n");
2633 notice ("\nGo ahead? (y or n) ");
2637 while (getchar () != '\n')
2640 if (i != 'y' && i != 'Y')
2645 /* Run each piped subprocess. */
2647 for (i = 0; i < n_commands; i++)
2649 char *errmsg_fmt, *errmsg_arg;
2650 const char *string = commands[i].argv[0];
2652 /* For some bizarre reason, the second argument of execvp() is
2653 char *const *, not const char *const *. */
2654 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2655 programname, temp_filename,
2656 &errmsg_fmt, &errmsg_arg,
2657 ((i == 0 ? PEXECUTE_FIRST : 0)
2658 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2659 | (string == commands[i].prog
2660 ? PEXECUTE_SEARCH : 0)
2661 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2663 if (commands[i].pid == -1)
2664 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2666 if (string != commands[i].prog)
2667 free ((PTR) string);
2672 /* Wait for all the subprocesses to finish.
2673 We don't care what order they finish in;
2674 we know that N_COMMANDS waits will get them all.
2675 Ignore subprocesses that we don't know about,
2676 since they can be spawned by the process that exec'ed us. */
2680 #ifdef HAVE_GETRUSAGE
2682 double ut = 0.0, st = 0.0;
2685 for (i = 0; i < n_commands;)
2691 pid = pwait (commands[i].pid, &status, 0);
2695 #ifdef HAVE_GETRUSAGE
2698 /* getrusage returns the total resource usage of all children
2699 up to now. Copy the previous values into prus, get the
2700 current statistics, then take the difference. */
2703 getrusage (RUSAGE_CHILDREN, &rus);
2704 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2705 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2706 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2708 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2709 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2710 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2714 for (j = 0; j < n_commands; j++)
2715 if (commands[j].pid == pid)
2718 if (WIFSIGNALED (status))
2721 /* SIGPIPE is a special case. It happens in -pipe mode
2722 when the compiler dies before the preprocessor is
2723 done, or the assembler dies before the compiler is
2724 done. There's generally been an error already, and
2725 this is just fallout. So don't generate another error
2726 unless we would otherwise have succeeded. */
2727 if (WTERMSIG (status) == SIGPIPE
2728 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2733 Internal error: %s (program %s)\n\
2734 Please submit a full bug report.\n\
2735 See %s for instructions.",
2736 strsignal (WTERMSIG (status)), commands[j].prog,
2741 else if (WIFEXITED (status)
2742 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2744 if (WEXITSTATUS (status) > greatest_status)
2745 greatest_status = WEXITSTATUS (status);
2748 #ifdef HAVE_GETRUSAGE
2749 if (report_times && ut + st != 0)
2750 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2759 /* Find all the switches given to us
2760 and make a vector describing them.
2761 The elements of the vector are strings, one per switch given.
2762 If a switch uses following arguments, then the `part1' field
2763 is the switch itself and the `args' field
2764 is a null-terminated vector containing the following arguments.
2765 The `live_cond' field is:
2767 1 if the switch is true in a conditional spec,
2768 -1 if false (overridden by a later switch)
2769 -2 if this switch should be ignored (used in %{<S})
2770 The `validated' field is nonzero if any spec has looked at this switch;
2771 if it remains zero at the end of the run, it must be meaningless. */
2774 #define SWITCH_FALSE -1
2775 #define SWITCH_IGNORE -2
2776 #define SWITCH_LIVE 1
2783 unsigned char validated;
2784 unsigned char ordering;
2787 static struct switchstr *switches;
2789 static int n_switches;
2794 const char *language;
2797 /* Also a vector of input files specified. */
2799 static struct infile *infiles;
2801 static int n_infiles;
2803 /* This counts the number of libraries added by lang_specific_driver, so that
2804 we can tell if there were any user supplied any files or libraries. */
2806 static int added_libraries;
2808 /* And a vector of corresponding output files is made up later. */
2810 static const char **outfiles;
2812 /* Used to track if none of the -B paths are used. */
2815 /* Used to track if standard path isn't used and -b or -V is specified. */
2816 static int warn_std;
2818 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2819 static int *warn_std_ptr = 0;
2821 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2823 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2824 is true if we should look for an executable suffix as well. */
2827 convert_filename (name, do_exe)
2837 len = strlen (name);
2839 #ifdef HAVE_OBJECT_SUFFIX
2840 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2842 && name[len - 2] == '.'
2843 && name[len - 1] == 'o')
2845 obstack_grow (&obstack, name, len - 2);
2846 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2847 name = obstack_finish (&obstack);
2851 #ifdef HAVE_EXECUTABLE_SUFFIX
2852 /* If there is no filetype, make it the executable suffix (which includes
2853 the "."). But don't get confused if we have just "-o". */
2854 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2857 for (i = len - 1; i >= 0; i--)
2858 if (IS_DIR_SEPARATOR (name[i]))
2861 for (i++; i < len; i++)
2865 obstack_grow (&obstack, name, len);
2866 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2867 name = obstack_finish (&obstack);
2874 /* Display the command line switches accepted by gcc. */
2878 printf (_("Usage: %s [options] file...\n"), programname);
2879 fputs (_("Options:\n"), stdout);
2881 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2882 fputs (_(" --help Display this information\n"), stdout);
2883 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2885 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2886 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2887 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2888 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2889 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2890 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2891 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2892 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2893 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2895 -print-multi-lib Display the mapping between command line options and\n\
2896 multiple library search directories\n"), stdout);
2897 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2898 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2899 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2900 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2901 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2902 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2903 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2904 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2905 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2906 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2907 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2908 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2909 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2910 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2911 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2912 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2913 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2915 -x <language> Specify the language of the following input files\n\
2916 Permissable languages include: c c++ assembler none\n\
2917 'none' means revert to the default behaviour of\n\
2918 guessing the language based on the file's extension\n\
2922 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2923 the various sub-processes invoked by %s. In order to pass other options\n\
2924 on to these processes the -W<letter> options must be used.\n\
2927 /* The rest of the options are displayed by invocations of the various
2932 add_preprocessor_option (option, len)
2936 n_preprocessor_options++;
2938 if (! preprocessor_options)
2939 preprocessor_options
2940 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2942 preprocessor_options
2943 = (char **) xrealloc (preprocessor_options,
2944 n_preprocessor_options * sizeof (char *));
2946 preprocessor_options [n_preprocessor_options - 1] =
2947 save_string (option, len);
2951 add_assembler_option (option, len)
2955 n_assembler_options++;
2957 if (! assembler_options)
2959 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2962 = (char **) xrealloc (assembler_options,
2963 n_assembler_options * sizeof (char *));
2965 assembler_options [n_assembler_options - 1] = save_string (option, len);
2969 add_linker_option (option, len)
2975 if (! linker_options)
2977 = (char **) xmalloc (n_linker_options * sizeof (char *));
2980 = (char **) xrealloc (linker_options,
2981 n_linker_options * sizeof (char *));
2983 linker_options [n_linker_options - 1] = save_string (option, len);
2986 /* Create the vector `switches' and its contents.
2987 Store its length in `n_switches'. */
2990 process_command (argc, argv)
2992 const char *const *argv;
2997 const char *spec_lang = 0;
2998 int last_language_n_infiles;
3001 int lang_n_infiles = 0;
3002 #ifdef MODIFY_TARGET_NAME
3003 int is_modify_target_name;
3007 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3011 added_libraries = 0;
3013 /* Figure compiler version from version string. */
3015 compiler_version = temp1 = xstrdup (version_string);
3017 for (; *temp1; ++temp1)
3026 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3027 see if we can create it from the pathname specified in argv[0]. */
3030 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3031 if (!gcc_exec_prefix)
3033 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3034 standard_exec_prefix);
3035 if (gcc_exec_prefix)
3036 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
3040 if (gcc_exec_prefix)
3042 int len = strlen (gcc_exec_prefix);
3044 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3045 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3047 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3048 if (IS_DIR_SEPARATOR (*temp)
3049 && strncmp (temp + 1, "lib", 3) == 0
3050 && IS_DIR_SEPARATOR (temp[4])
3051 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3052 len -= sizeof ("/lib/gcc-lib/") - 1;
3055 set_std_prefix (gcc_exec_prefix, len);
3056 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3057 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3058 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3059 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3062 /* COMPILER_PATH and LIBRARY_PATH have values
3063 that are lists of directory names with colons. */
3065 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3068 const char *startp, *endp;
3069 char *nstore = (char *) alloca (strlen (temp) + 3);
3071 startp = endp = temp;
3074 if (*endp == PATH_SEPARATOR || *endp == 0)
3076 strncpy (nstore, startp, endp - startp);
3078 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3079 else if (!IS_DIR_SEPARATOR (endp[-1]))
3081 nstore[endp - startp] = DIR_SEPARATOR;
3082 nstore[endp - startp + 1] = 0;
3085 nstore[endp - startp] = 0;
3086 add_prefix (&exec_prefixes, nstore, 0,
3087 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3088 add_prefix (&include_prefixes,
3089 concat (nstore, "include", NULL_PTR),
3090 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3093 endp = startp = endp + 1;
3100 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3101 if (temp && *cross_compile == '0')
3103 const char *startp, *endp;
3104 char *nstore = (char *) alloca (strlen (temp) + 3);
3106 startp = endp = temp;
3109 if (*endp == PATH_SEPARATOR || *endp == 0)
3111 strncpy (nstore, startp, endp - startp);
3113 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3114 else if (!IS_DIR_SEPARATOR (endp[-1]))
3116 nstore[endp - startp] = DIR_SEPARATOR;
3117 nstore[endp - startp + 1] = 0;
3120 nstore[endp - startp] = 0;
3121 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3122 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3125 endp = startp = endp + 1;
3132 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3133 GET_ENV_PATH_LIST (temp, "LPATH");
3134 if (temp && *cross_compile == '0')
3136 const char *startp, *endp;
3137 char *nstore = (char *) alloca (strlen (temp) + 3);
3139 startp = endp = temp;
3142 if (*endp == PATH_SEPARATOR || *endp == 0)
3144 strncpy (nstore, startp, endp - startp);
3146 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3147 else if (!IS_DIR_SEPARATOR (endp[-1]))
3149 nstore[endp - startp] = DIR_SEPARATOR;
3150 nstore[endp - startp + 1] = 0;
3153 nstore[endp - startp] = 0;
3154 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3155 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3158 endp = startp = endp + 1;
3165 /* Convert new-style -- options to old-style. */
3166 translate_options (&argc, &argv);
3168 /* Do language-specific adjustment/addition of flags. */
3169 lang_specific_driver (&argc, &argv, &added_libraries);
3171 /* Scan argv twice. Here, the first time, just count how many switches
3172 there will be in their vector, and how many input files in theirs.
3173 Also parse any switches that determine the configuration name, such as -b.
3174 Here we also parse the switches that cc itself uses (e.g. -v). */
3176 for (i = 1; i < argc; i++)
3178 if (! strcmp (argv[i], "-dumpspecs"))
3180 struct spec_list *sl;
3182 for (sl = specs; sl; sl = sl->next)
3183 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3184 if (link_command_spec)
3185 printf ("*link_command:\n%s\n\n", link_command_spec);
3188 else if (! strcmp (argv[i], "-dumpversion"))
3190 printf ("%s\n", spec_version);
3193 else if (! strcmp (argv[i], "-dumpmachine"))
3195 printf ("%s\n", spec_machine);
3198 else if (strcmp (argv[i], "-fhelp") == 0)
3200 /* translate_options () has turned --help into -fhelp. */
3201 print_help_list = 1;
3203 /* We will be passing a dummy file on to the sub-processes. */
3207 add_preprocessor_option ("--help", 6);
3208 add_assembler_option ("--help", 6);
3209 add_linker_option ("--help", 6);
3211 else if (strcmp (argv[i], "-ftarget-help") == 0)
3213 /* translate_options() has turned --target-help into -ftarget-help. */
3214 target_help_flag = 1;
3216 /* We will be passing a dummy file on to the sub-processes. */
3220 add_preprocessor_option ("--target-help", 13);
3221 add_assembler_option ("--target-help", 13);
3222 add_linker_option ("--target-help", 13);
3224 else if (! strcmp (argv[i], "-pass-exit-codes"))
3226 pass_exit_codes = 1;
3229 else if (! strcmp (argv[i], "-print-search-dirs"))
3230 print_search_dirs = 1;
3231 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3232 print_file_name = "libgcc.a";
3233 else if (! strncmp (argv[i], "-print-file-name=", 17))
3234 print_file_name = argv[i] + 17;
3235 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3236 print_prog_name = argv[i] + 17;
3237 else if (! strcmp (argv[i], "-print-multi-lib"))
3238 print_multi_lib = 1;
3239 else if (! strcmp (argv[i], "-print-multi-directory"))
3240 print_multi_directory = 1;
3241 else if (! strncmp (argv[i], "-Wa,", 4))
3244 /* Pass the rest of this option to the assembler. */
3246 /* Split the argument at commas. */
3248 for (j = 4; argv[i][j]; j++)
3249 if (argv[i][j] == ',')
3251 add_assembler_option (argv[i] + prev, j - prev);
3255 /* Record the part after the last comma. */
3256 add_assembler_option (argv[i] + prev, j - prev);
3258 else if (! strncmp (argv[i], "-Wp,", 4))
3261 /* Pass the rest of this option to the preprocessor. */
3263 /* Split the argument at commas. */
3265 for (j = 4; argv[i][j]; j++)
3266 if (argv[i][j] == ',')
3268 add_preprocessor_option (argv[i] + prev, j - prev);
3272 /* Record the part after the last comma. */
3273 add_preprocessor_option (argv[i] + prev, j - prev);
3275 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3276 /* The +e options to the C++ front-end. */
3278 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3281 /* Split the argument at commas. */
3282 for (j = 3; argv[i][j]; j++)
3283 n_infiles += (argv[i][j] == ',');
3285 else if (strcmp (argv[i], "-Xlinker") == 0)
3288 fatal ("argument to `-Xlinker' is missing");
3293 else if (strncmp (argv[i], "-l", 2) == 0)
3295 else if (strcmp (argv[i], "-save-temps") == 0)
3297 save_temps_flag = 1;
3300 else if (strcmp (argv[i], "-specs") == 0)
3302 struct user_specs *user = (struct user_specs *)
3303 xmalloc (sizeof (struct user_specs));
3305 fatal ("argument to `-specs' is missing");
3307 user->next = (struct user_specs *) 0;
3308 user->filename = argv[i];
3309 if (user_specs_tail)
3310 user_specs_tail->next = user;
3312 user_specs_head = user;
3313 user_specs_tail = user;
3315 else if (strncmp (argv[i], "-specs=", 7) == 0)
3317 struct user_specs *user = (struct user_specs *)
3318 xmalloc (sizeof (struct user_specs));
3319 if (strlen (argv[i]) == 7)
3320 fatal ("argument to `-specs=' is missing");
3322 user->next = (struct user_specs *) 0;
3323 user->filename = argv[i] + 7;
3324 if (user_specs_tail)
3325 user_specs_tail->next = user;
3327 user_specs_head = user;
3328 user_specs_tail = user;
3330 else if (strcmp (argv[i], "-time") == 0)
3332 else if (argv[i][0] == '-' && argv[i][1] != 0)
3334 register const char *p = &argv[i][1];
3335 register int c = *p;
3341 if (p[1] == 0 && i + 1 == argc)
3342 fatal ("argument to `-b' is missing");
3344 spec_machine = argv[++i];
3346 spec_machine = p + 1;
3348 warn_std_ptr = &warn_std;
3354 if (p[1] == 0 && i + 1 == argc)
3355 fatal ("argument to `-B' is missing");
3361 /* As a kludge, if the arg is "[foo/]stageN/", just
3362 add "[foo/]include" to the include prefix. */
3363 int len = strlen (value);
3366 && (IS_DIR_SEPARATOR (value[len - 8]))))
3367 && strncmp (value + len - 7, "stage", 5) == 0
3368 && ISDIGIT (value[len - 2])
3369 && (IS_DIR_SEPARATOR (value[len - 1])))
3372 add_prefix (&include_prefixes, "include", NULL_PTR,
3373 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3376 char *string = xmalloc (len + 1);
3377 strncpy (string, value, len-7);
3378 strcpy (string+len-7, "include");
3379 add_prefix (&include_prefixes, string, NULL_PTR,
3380 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3384 add_prefix (&exec_prefixes, value, NULL_PTR,
3385 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3386 add_prefix (&startfile_prefixes, value, NULL_PTR,
3387 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3388 add_prefix (&include_prefixes, concat (value, "include",
3391 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3396 case 'v': /* Print our subcommands and print versions. */
3398 /* If they do anything other than exactly `-v', don't set
3399 verbose_flag; rather, continue on to give the error. */
3407 if (p[1] == 0 && i + 1 == argc)
3408 fatal ("argument to `-V' is missing");
3410 spec_version = argv[++i];
3412 spec_version = p + 1;
3413 compiler_version = spec_version;
3414 warn_std_ptr = &warn_std;
3416 /* Validate the version number. Use the same checks
3417 done when inserting it into a spec.
3419 The format of the version string is
3420 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3422 const char *v = compiler_version;
3424 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3425 while (! ISDIGIT (*v))
3428 if (v > compiler_version && v[-1] != '-')
3429 fatal ("invalid version number format");
3431 /* Set V after the first period. */
3432 while (ISDIGIT (*v))
3436 fatal ("invalid version number format");
3439 while (ISDIGIT (*v))
3442 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3443 fatal ("invalid version number format");
3459 #if defined(HAVE_EXECUTABLE_SUFFIX)
3464 /* Forward scan, just in case -S or -c is specified
3471 if (argv[j][0] == '-')
3473 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3479 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3480 j += skip - (argv[j][2] != 0);
3481 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3488 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3490 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3492 argv[i] = convert_filename (argv[i], ! have_c);
3499 #ifdef MODIFY_TARGET_NAME
3500 is_modify_target_name = 0;
3503 j < sizeof modify_target / sizeof modify_target[0]; j++)
3504 if (! strcmp (argv[i], modify_target[j].sw))
3507 = (char *) xmalloc (strlen (modify_target[j].str)
3508 + strlen (spec_machine));
3511 int made_addition = 0;
3513 is_modify_target_name = 1;
3514 for (p = spec_machine, q = new_name; *p != 0; )
3516 if (modify_target[j].add_del == DELETE
3517 && (! strncmp (q, modify_target[j].str,
3518 strlen (modify_target[j].str))))
3519 p += strlen (modify_target[j].str);
3520 else if (modify_target[j].add_del == ADD
3521 && ! made_addition && *p == '-')
3523 for (r = modify_target[j].str; *r != 0; )
3531 spec_machine = new_name;
3534 if (is_modify_target_name)
3540 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3541 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3542 else if (WORD_SWITCH_TAKES_ARG (p))
3543 i += WORD_SWITCH_TAKES_ARG (p);
3553 if (have_c && have_o && lang_n_infiles > 1)
3554 fatal ("cannot specify -o with -c or -S and multiple compilations");
3556 /* Set up the search paths before we go looking for config files. */
3558 /* These come before the md prefixes so that we will find gcc's subcommands
3559 (such as cpp) rather than those of the host system. */
3560 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3561 as well as trying the machine and the version. */
3563 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3564 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3565 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3566 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3567 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3568 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3571 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3572 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3573 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3574 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3576 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3577 dir_separator_str, NULL_PTR);
3579 /* If tooldir is relative, base it on exec_prefixes. A relative
3580 tooldir lets us move the installed tree as a unit.
3582 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3583 directories, so that we can search both the user specified directory
3584 and the standard place. */
3586 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3588 if (gcc_exec_prefix)
3590 char *gcc_exec_tooldir_prefix
3591 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3592 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3594 add_prefix (&exec_prefixes,
3595 concat (gcc_exec_tooldir_prefix, "bin",
3596 dir_separator_str, NULL_PTR),
3597 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3598 add_prefix (&startfile_prefixes,
3599 concat (gcc_exec_tooldir_prefix, "lib",
3600 dir_separator_str, NULL_PTR),
3601 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3604 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3605 dir_separator_str, spec_version,
3606 dir_separator_str, tooldir_prefix, NULL_PTR);
3609 add_prefix (&exec_prefixes,
3610 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3611 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3612 add_prefix (&startfile_prefixes,
3613 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3614 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3616 /* More prefixes are enabled in main, after we read the specs file
3617 and determine whether this is cross-compilation or not. */
3619 /* Then create the space for the vectors and scan again. */
3621 switches = ((struct switchstr *)
3622 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3623 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3626 last_language_n_infiles = -1;
3628 /* This, time, copy the text of each switch and store a pointer
3629 to the copy in the vector of switches.
3630 Store all the infiles in their vector. */
3632 for (i = 1; i < argc; i++)
3634 /* Just skip the switches that were handled by the preceding loop. */
3635 #ifdef MODIFY_TARGET_NAME
3636 is_modify_target_name = 0;
3638 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3639 if (! strcmp (argv[i], modify_target[j].sw))
3640 is_modify_target_name = 1;
3642 if (is_modify_target_name)
3646 if (! strncmp (argv[i], "-Wa,", 4))
3648 else if (! strncmp (argv[i], "-Wp,", 4))
3650 else if (! strcmp (argv[i], "-pass-exit-codes"))
3652 else if (! strcmp (argv[i], "-print-search-dirs"))
3654 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3656 else if (! strncmp (argv[i], "-print-file-name=", 17))
3658 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3660 else if (! strcmp (argv[i], "-print-multi-lib"))
3662 else if (! strcmp (argv[i], "-print-multi-directory"))
3664 else if (strcmp (argv[i], "-ftarget-help") == 0)
3666 /* Create a dummy input file, so that we can pass --target-help on to
3667 the various sub-processes. */
3668 infiles[n_infiles].language = "c";
3669 infiles[n_infiles++].name = "target-dummy";
3671 /* Preserve the --target-help switch so that it can be caught by
3672 the cc1 spec string. */
3673 switches[n_switches].part1 = "--target-help";
3674 switches[n_switches].args = 0;
3675 switches[n_switches].live_cond = SWITCH_OK;
3676 switches[n_switches].validated = 0;
3680 else if (strcmp (argv[i], "-fhelp") == 0)
3684 /* Create a dummy input file, so that we can pass --help on to
3685 the various sub-processes. */
3686 infiles[n_infiles].language = "c";
3687 infiles[n_infiles++].name = "help-dummy";
3689 /* Preserve the --help switch so that it can be caught by the
3691 switches[n_switches].part1 = "--help";
3692 switches[n_switches].args = 0;
3693 switches[n_switches].live_cond = SWITCH_OK;
3694 switches[n_switches].validated = 0;
3699 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3701 /* Compensate for the +e options to the C++ front-end;
3702 they're there simply for cfront call-compatibility. We do
3703 some magic in default_compilers to pass them down properly.
3704 Note we deliberately start at the `+' here, to avoid passing
3705 -e0 or -e1 down into the linker. */
3706 switches[n_switches].part1 = &argv[i][0];
3707 switches[n_switches].args = 0;
3708 switches[n_switches].live_cond = SWITCH_OK;
3709 switches[n_switches].validated = 0;
3712 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3715 /* Split the argument at commas. */
3717 for (j = 4; argv[i][j]; j++)
3718 if (argv[i][j] == ',')
3720 infiles[n_infiles].language = "*";
3721 infiles[n_infiles++].name
3722 = save_string (argv[i] + prev, j - prev);
3725 /* Record the part after the last comma. */
3726 infiles[n_infiles].language = "*";
3727 infiles[n_infiles++].name = argv[i] + prev;
3729 else if (strcmp (argv[i], "-Xlinker") == 0)
3731 infiles[n_infiles].language = "*";
3732 infiles[n_infiles++].name = argv[++i];
3734 else if (strncmp (argv[i], "-l", 2) == 0)
3736 infiles[n_infiles].language = "*";
3737 infiles[n_infiles++].name = argv[i];
3739 else if (strcmp (argv[i], "-specs") == 0)
3741 else if (strncmp (argv[i], "-specs=", 7) == 0)
3743 else if (strcmp (argv[i], "-time") == 0)
3745 else if ((save_temps_flag || report_times)
3746 && strcmp (argv[i], "-pipe") == 0)
3748 /* -save-temps overrides -pipe, so that temp files are produced */
3749 if (save_temps_flag)
3750 error ("Warning: -pipe ignored because -save-temps specified");
3751 /* -time overrides -pipe because we can't get correct stats when
3752 multiple children are running at once. */
3753 else if (report_times)
3754 error ("Warning: -pipe ignored because -time specified");
3756 else if (argv[i][0] == '-' && argv[i][1] != 0)
3758 const char *p = &argv[i][1];
3763 if (p[1] == 0 && i + 1 == argc)
3764 fatal ("argument to `-x' is missing");
3766 spec_lang = argv[++i];
3769 if (! strcmp (spec_lang, "none"))
3770 /* Suppress the warning if -xnone comes after the last input
3771 file, because alternate command interfaces like g++ might
3772 find it useful to place -xnone after each input file. */
3775 last_language_n_infiles = n_infiles;
3778 switches[n_switches].part1 = p;
3779 /* Deal with option arguments in separate argv elements. */
3780 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3781 || WORD_SWITCH_TAKES_ARG (p))
3784 int n_args = WORD_SWITCH_TAKES_ARG (p);
3788 /* Count only the option arguments in separate argv elements. */
3789 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3791 if (i + n_args >= argc)
3792 fatal ("argument to `-%s' is missing", p);
3793 switches[n_switches].args
3794 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3796 switches[n_switches].args[j++] = argv[++i];
3797 /* Null-terminate the vector. */
3798 switches[n_switches].args[j] = 0;
3800 else if (strchr (switches_need_spaces, c))
3802 /* On some systems, ld cannot handle some options without
3803 a space. So split the option from its argument. */
3804 char *part1 = (char *) xmalloc (2);
3809 switches[n_switches].part1 = part1;
3810 switches[n_switches].args
3811 = (const char **) xmalloc (2 * sizeof (const char *));
3812 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3813 strcpy (tmp, &p[1]);
3814 switches[n_switches].args[1] = 0;
3817 switches[n_switches].args = 0;
3819 switches[n_switches].live_cond = SWITCH_OK;
3820 switches[n_switches].validated = 0;
3821 switches[n_switches].ordering = 0;
3822 /* These are always valid, since gcc.c itself understands it. */
3823 if (!strcmp (p, "save-temps")
3824 || !strcmp (p, "static-libgcc")
3825 || !strcmp (p, "shared-libgcc"))
3826 switches[n_switches].validated = 1;
3829 char ch = switches[n_switches].part1[0];
3830 if (ch == 'V' || ch == 'b' || ch == 'B')
3831 switches[n_switches].validated = 1;
3837 #ifdef HAVE_OBJECT_SUFFIX
3838 argv[i] = convert_filename (argv[i], 0);
3841 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3843 perror_with_name (argv[i]);
3848 infiles[n_infiles].language = spec_lang;
3849 infiles[n_infiles++].name = argv[i];
3854 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3855 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3857 switches[n_switches].part1 = 0;
3858 infiles[n_infiles].name = 0;
3861 /* Process a spec string, accumulating and running commands. */
3863 /* These variables describe the input file name.
3864 input_file_number is the index on outfiles of this file,
3865 so that the output file name can be stored for later use by %o.
3866 input_basename is the start of the part of the input file
3867 sans all directory names, and basename_length is the number
3868 of characters starting there excluding the suffix .c or whatever. */
3870 const char *input_filename;
3871 static int input_file_number;
3872 size_t input_filename_length;
3873 static int basename_length;
3874 static int suffixed_basename_length;
3875 static const char *input_basename;
3876 static const char *input_suffix;
3878 /* The compiler used to process the current input file. */
3879 static struct compiler *input_file_compiler;
3881 /* These are variables used within do_spec and do_spec_1. */
3883 /* Nonzero if an arg has been started and not yet terminated
3884 (with space, tab or newline). */
3885 static int arg_going;
3887 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3888 is a temporary file name. */
3889 static int delete_this_arg;
3891 /* Nonzero means %w has been seen; the next arg to be terminated
3892 is the output file name of this compilation. */
3893 static int this_is_output_file;
3895 /* Nonzero means %s has been seen; the next arg to be terminated
3896 is the name of a library file and we should try the standard
3897 search dirs for it. */
3898 static int this_is_library_file;
3900 /* Nonzero means that the input of this command is coming from a pipe. */
3901 static int input_from_pipe;
3903 /* Nonnull means substitute this for any suffix when outputting a switches
3905 static const char *suffix_subst;
3907 /* Process the spec SPEC and run the commands specified therein.
3908 Returns 0 if the spec is successfully processed; -1 if failed. */
3918 delete_this_arg = 0;
3919 this_is_output_file = 0;
3920 this_is_library_file = 0;
3921 input_from_pipe = 0;
3922 suffix_subst = NULL;
3924 value = do_spec_1 (spec, 0, NULL_PTR);
3926 /* Force out any unfinished command.
3927 If -pipe, this forces out the last command if it ended in `|'. */
3930 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3933 if (argbuf_index > 0)
3940 /* Process the sub-spec SPEC as a portion of a larger spec.
3941 This is like processing a whole spec except that we do
3942 not initialize at the beginning and we do not supply a
3943 newline by default at the end.
3944 INSWITCH nonzero means don't process %-sequences in SPEC;
3945 in this case, % is treated as an ordinary character.
3946 This is used while substituting switches.
3947 INSWITCH nonzero also causes SPC not to terminate an argument.
3949 Value is zero unless a line was finished
3950 and the command on that line reported an error. */
3953 do_spec_1 (spec, inswitch, soft_matched_part)
3956 const char *soft_matched_part;
3958 register const char *p = spec;
3965 /* If substituting a switch, treat all chars like letters.
3966 Otherwise, NL, SPC, TAB and % are special. */
3967 switch (inswitch ? 'a' : c)
3970 /* End of line: finish any pending argument,
3971 then run the pending command if one has been started. */
3974 obstack_1grow (&obstack, 0);
3975 string = obstack_finish (&obstack);
3976 if (this_is_library_file)
3977 string = find_file (string);
3978 store_arg (string, delete_this_arg, this_is_output_file);
3979 if (this_is_output_file)
3980 outfiles[input_file_number] = string;
3984 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3986 for (i = 0; i < n_switches; i++)
3987 if (!strcmp (switches[i].part1, "pipe"))
3990 /* A `|' before the newline means use a pipe here,
3991 but only if -pipe was specified.
3992 Otherwise, execute now and don't pass the `|' as an arg. */
3995 input_from_pipe = 1;
3996 switches[i].validated = 1;
4003 if (argbuf_index > 0)
4009 /* Reinitialize for a new command, and for a new argument. */
4012 delete_this_arg = 0;
4013 this_is_output_file = 0;
4014 this_is_library_file = 0;
4015 input_from_pipe = 0;
4019 /* End any pending argument. */
4022 obstack_1grow (&obstack, 0);
4023 string = obstack_finish (&obstack);
4024 if (this_is_library_file)
4025 string = find_file (string);
4026 store_arg (string, delete_this_arg, this_is_output_file);
4027 if (this_is_output_file)
4028 outfiles[input_file_number] = string;
4032 obstack_1grow (&obstack, c);
4038 /* Space or tab ends an argument if one is pending. */
4041 obstack_1grow (&obstack, 0);
4042 string = obstack_finish (&obstack);
4043 if (this_is_library_file)
4044 string = find_file (string);
4045 store_arg (string, delete_this_arg, this_is_output_file);
4046 if (this_is_output_file)
4047 outfiles[input_file_number] = string;
4049 /* Reinitialize for a new argument. */
4051 delete_this_arg = 0;
4052 this_is_output_file = 0;
4053 this_is_library_file = 0;
4060 fatal ("Invalid specification! Bug in cc.");
4063 obstack_grow (&obstack, input_basename, basename_length);
4068 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4073 delete_this_arg = 2;
4076 /* Dump out the directories specified with LIBRARY_PATH,
4077 followed by the absolute directories
4078 that we search for startfiles. */
4081 struct prefix_list *pl = startfile_prefixes.plist;
4082 size_t bufsize = 100;
4083 char *buffer = (char *) xmalloc (bufsize);
4086 for (; pl; pl = pl->next)
4088 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4089 /* Used on systems which record the specified -L dirs
4090 and use them to search for dynamic linking. */
4091 /* Relative directories always come from -B,
4092 and it is better not to use them for searching
4093 at run time. In particular, stage1 loses. */
4094 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4097 /* Try subdirectory if there is one. */
4098 if (multilib_dir != NULL)
4102 if (strlen (pl->prefix) + strlen (machine_suffix)
4104 bufsize = (strlen (pl->prefix)
4105 + strlen (machine_suffix)) * 2 + 1;
4106 buffer = (char *) xrealloc (buffer, bufsize);
4107 strcpy (buffer, pl->prefix);
4108 strcat (buffer, machine_suffix);
4109 if (is_directory (buffer, multilib_dir, 1))
4111 do_spec_1 ("-L", 0, NULL_PTR);
4112 #ifdef SPACE_AFTER_L_OPTION
4113 do_spec_1 (" ", 0, NULL_PTR);
4115 do_spec_1 (buffer, 1, NULL_PTR);
4116 do_spec_1 (multilib_dir, 1, NULL_PTR);
4117 /* Make this a separate argument. */
4118 do_spec_1 (" ", 0, NULL_PTR);
4121 if (!pl->require_machine_suffix)
4123 if (is_directory (pl->prefix, multilib_dir, 1))
4125 do_spec_1 ("-L", 0, NULL_PTR);
4126 #ifdef SPACE_AFTER_L_OPTION
4127 do_spec_1 (" ", 0, NULL_PTR);
4129 do_spec_1 (pl->prefix, 1, NULL_PTR);
4130 do_spec_1 (multilib_dir, 1, NULL_PTR);
4131 /* Make this a separate argument. */
4132 do_spec_1 (" ", 0, NULL_PTR);
4138 if (is_directory (pl->prefix, machine_suffix, 1))
4140 do_spec_1 ("-L", 0, NULL_PTR);
4141 #ifdef SPACE_AFTER_L_OPTION
4142 do_spec_1 (" ", 0, NULL_PTR);
4144 do_spec_1 (pl->prefix, 1, NULL_PTR);
4145 /* Remove slash from machine_suffix. */
4146 if (strlen (machine_suffix) >= bufsize)
4147 bufsize = strlen (machine_suffix) * 2 + 1;
4148 buffer = (char *) xrealloc (buffer, bufsize);
4149 strcpy (buffer, machine_suffix);
4150 idx = strlen (buffer);
4151 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4152 buffer[idx - 1] = 0;
4153 do_spec_1 (buffer, 1, NULL_PTR);
4154 /* Make this a separate argument. */
4155 do_spec_1 (" ", 0, NULL_PTR);
4158 if (!pl->require_machine_suffix)
4160 if (is_directory (pl->prefix, "", 1))
4162 do_spec_1 ("-L", 0, NULL_PTR);
4163 #ifdef SPACE_AFTER_L_OPTION
4164 do_spec_1 (" ", 0, NULL_PTR);
4166 /* Remove slash from pl->prefix. */
4167 if (strlen (pl->prefix) >= bufsize)
4168 bufsize = strlen (pl->prefix) * 2 + 1;
4169 buffer = (char *) xrealloc (buffer, bufsize);
4170 strcpy (buffer, pl->prefix);
4171 idx = strlen (buffer);
4172 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4173 buffer[idx - 1] = 0;
4174 do_spec_1 (buffer, 1, NULL_PTR);
4175 /* Make this a separate argument. */
4176 do_spec_1 (" ", 0, NULL_PTR);
4185 /* %efoo means report an error with `foo' as error message
4186 and don't execute any more commands for this file. */
4190 while (*p != 0 && *p != '\n')
4192 buf = (char *) alloca (p - q + 1);
4193 strncpy (buf, q, p - q);
4204 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4205 and it is not a directory, and it is writable, use it.
4206 Otherwise, fall through and treat this like any other
4209 if ((!save_temps_flag)
4210 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4211 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4213 obstack_grow (&obstack, HOST_BIT_BUCKET,
4214 strlen (HOST_BIT_BUCKET));
4215 delete_this_arg = 0;
4223 if (save_temps_flag)
4225 obstack_grow (&obstack, input_basename, basename_length);
4226 delete_this_arg = 0;
4230 struct temp_name *t;
4232 const char *suffix = p;
4233 char *saved_suffix = NULL;
4235 while (*p == '.' || ISALPHA ((unsigned char) *p))
4237 suffix_length = p - suffix;
4238 if (p[0] == '%' && p[1] == 'O')
4241 /* We don't support extra suffix characters after %O. */
4242 if (*p == '.' || ISALPHA ((unsigned char) *p))
4244 if (suffix_length == 0)
4245 suffix = OBJECT_SUFFIX;
4249 = (char *) xmalloc (suffix_length
4250 + strlen (OBJECT_SUFFIX));
4251 strncpy (saved_suffix, suffix, suffix_length);
4252 strcpy (saved_suffix + suffix_length,
4255 suffix_length += strlen (OBJECT_SUFFIX);
4258 /* See if we already have an association of %g/%u/%U and
4260 for (t = temp_names; t; t = t->next)
4261 if (t->length == suffix_length
4262 && strncmp (t->suffix, suffix, suffix_length) == 0
4263 && t->unique == (c != 'g'))
4266 /* Make a new association if needed. %u and %j require one. */
4267 if (t == 0 || c == 'u' || c == 'j')
4271 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4272 t->next = temp_names;
4275 t->length = suffix_length;
4276 t->suffix = save_string (suffix, suffix_length);
4277 t->unique = (c != 'g');
4278 temp_filename = make_temp_file (t->suffix);
4279 temp_filename_length = strlen (temp_filename);
4280 t->filename = temp_filename;
4281 t->filename_length = temp_filename_length;
4285 free (saved_suffix);
4287 obstack_grow (&obstack, t->filename, t->filename_length);
4288 delete_this_arg = 1;
4294 obstack_grow (&obstack, input_filename, input_filename_length);
4300 struct prefix_list *pl = include_prefixes.plist;
4302 if (gcc_exec_prefix)
4304 do_spec_1 ("-iprefix", 1, NULL_PTR);
4305 /* Make this a separate argument. */
4306 do_spec_1 (" ", 0, NULL_PTR);
4307 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4308 do_spec_1 (" ", 0, NULL_PTR);
4311 for (; pl; pl = pl->next)
4313 do_spec_1 ("-isystem", 1, NULL_PTR);
4314 /* Make this a separate argument. */
4315 do_spec_1 (" ", 0, NULL_PTR);
4316 do_spec_1 (pl->prefix, 1, NULL_PTR);
4317 do_spec_1 (" ", 0, NULL_PTR);
4324 int max = n_infiles;
4325 max += lang_specific_extra_outfiles;
4327 for (i = 0; i < max; i++)
4329 store_arg (outfiles[i], 0, 0);
4334 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4339 this_is_library_file = 1;
4343 this_is_output_file = 1;
4348 int cur_index = argbuf_index;
4349 /* Handle the {...} following the %W. */
4352 p = handle_braces (p + 1);
4355 /* If any args were output, mark the last one for deletion
4357 if (argbuf_index != cur_index)
4358 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4362 /* %x{OPTION} records OPTION for %X to output. */
4368 /* Skip past the option value and make a copy. */
4373 string = save_string (p1 + 1, p - p1 - 2);
4375 /* See if we already recorded this option. */
4376 for (i = 0; i < n_linker_options; i++)
4377 if (! strcmp (string, linker_options[i]))
4383 /* This option is new; add it. */
4384 add_linker_option (string, strlen (string));
4388 /* Dump out the options accumulated previously using %x. */
4390 for (i = 0; i < n_linker_options; i++)
4392 do_spec_1 (linker_options[i], 1, NULL_PTR);
4393 /* Make each accumulated option a separate argument. */
4394 do_spec_1 (" ", 0, NULL_PTR);
4398 /* Dump out the options accumulated previously using -Wa,. */
4400 for (i = 0; i < n_assembler_options; i++)
4402 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4403 /* Make each accumulated option a separate argument. */
4404 do_spec_1 (" ", 0, NULL_PTR);
4408 /* Dump out the options accumulated previously using -Wp,. */
4410 for (i = 0; i < n_preprocessor_options; i++)
4412 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4413 /* Make each accumulated option a separate argument. */
4414 do_spec_1 (" ", 0, NULL_PTR);
4418 /* Here are digits and numbers that just process
4419 a certain constant string as a spec. */
4422 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4428 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4434 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4440 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4446 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4454 = (input_file_compiler->cpp_spec
4455 ? input_file_compiler->cpp_spec
4457 value = do_spec_1 (spec, 0, NULL_PTR);
4464 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4470 value = do_spec_1 (link_spec, 0, NULL_PTR);
4476 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4482 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4488 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4494 len = strlen (multilib_dir);
4495 obstack_blank (&obstack, len + 1);
4496 p = obstack_next_free (&obstack) - len;
4499 for (q = multilib_dir; *q ; ++q, ++p)
4500 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4506 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4510 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4514 if (! strncmp (y, "-D", 2))
4515 /* Copy the whole option. */
4516 while (*y && *y != ' ' && *y != '\t')
4518 else if (*y == ' ' || *y == '\t')
4519 /* Copy whitespace to the result. */
4521 /* Don't copy other options. */
4528 value = do_spec_1 (buf, 0, NULL_PTR);
4536 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4540 /* Copy all of CPP_PREDEFINES into BUF,
4541 but force them all into the reserved name space if they
4542 aren't already there. The reserved name space is all
4543 identifiers beginning with two underscores or with one
4544 underscore and a capital letter. We do the forcing by
4545 adding up to two underscores to the beginning and end
4546 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4551 if (! strncmp (y, "-D", 2))
4560 && ! ISUPPER ((unsigned char) *(y + 1))))
4562 /* Stick __ at front of macro name. */
4566 /* Arrange to stick __ at the end as well. */
4570 /* Copy the macro name. */
4571 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4584 /* Copy the value given, if any. */
4585 while (*y && *y != ' ' && *y != '\t')
4588 else if (*y == ' ' || *y == '\t')
4589 /* Copy whitespace to the result. */
4591 /* Don't copy -A options */
4597 /* Copy all of CPP_PREDEFINES into BUF,
4598 but put __ after every -D. */
4602 if (! strncmp (y, "-D", 2))
4608 && ! ISUPPER ((unsigned char) *(y + 1))))
4610 /* Stick -D__ at front of macro name. */
4617 /* Copy the macro name. */
4618 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4621 /* Copy the value given, if any. */
4622 while (*y && *y != ' ' && *y != '\t')
4627 /* Do not copy this macro - we have just done it before */
4628 while (*y && *y != ' ' && *y != '\t')
4632 else if (*y == ' ' || *y == '\t')
4633 /* Copy whitespace to the result. */
4635 /* Don't copy -A options. */
4641 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4645 if (! strncmp (y, "-A", 2))
4646 /* Copy the whole option. */
4647 while (*y && *y != ' ' && *y != '\t')
4649 else if (*y == ' ' || *y == '\t')
4650 /* Copy whitespace to the result. */
4652 /* Don't copy other options. */
4659 value = do_spec_1 (buf, 0, NULL_PTR);
4666 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4671 /* Here we define characters other than letters and digits. */
4674 p = handle_braces (p);
4680 obstack_1grow (&obstack, '%');
4687 while (p[len] && p[len] != ' ' && p[len] != '%')
4689 suffix_subst = save_string (p - 1, len + 1);
4695 if (soft_matched_part)
4697 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4698 do_spec_1 (" ", 0, NULL_PTR);
4701 /* Catch the case where a spec string contains something like
4702 '%{foo:%*}'. ie there is no * in the pattern on the left
4703 hand side of the :. */
4704 error ("Spec failure: '%%*' has not been initialised by pattern match");
4707 /* Process a string found as the value of a spec given by name.
4708 This feature allows individual machine descriptions
4709 to add and use their own specs.
4710 %[...] modifies -D options the way %P does;
4711 %(...) uses the spec unmodified. */
4713 error ("Warning: use of obsolete %%[ operator in specs");
4716 const char *name = p;
4717 struct spec_list *sl;
4720 /* The string after the S/P is the name of a spec that is to be
4722 while (*p && *p != ')' && *p != ']')
4725 /* See if it's in the list. */
4726 for (len = p - name, sl = specs; sl; sl = sl->next)
4727 if (sl->name_len == len && !strncmp (sl->name, name, len))
4729 name = *(sl->ptr_spec);
4731 notice ("Processing spec %c%s%c, which is '%s'\n",
4732 c, sl->name, (c == '(') ? ')' : ']', name);
4741 value = do_spec_1 (name, 0, NULL_PTR);
4747 char *x = (char *) alloca (strlen (name) * 2 + 1);
4749 const char *y = name;
4752 /* Copy all of NAME into BUF, but put __ after
4753 every -D and at the end of each arg. */
4756 if (! strncmp (y, "-D", 2))
4767 && (*y == ' ' || *y == '\t' || *y == '='
4768 || *y == '}' || *y == 0))
4781 value = do_spec_1 (buf, 0, NULL_PTR);
4787 /* Discard the closing paren or bracket. */
4795 int c1 = *p++; /* Select first or second version number. */
4796 const char *v = compiler_version;
4798 static const char zeroc = '0';
4800 /* The format of the version string is
4801 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4803 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4804 while (! ISDIGIT (*v))
4806 if (v > compiler_version && v[-1] != '-')
4809 /* If desired, advance to second version number. */
4812 /* Set V after the first period. */
4813 while (ISDIGIT (*v))
4820 /* If desired, advance to third version number.
4821 But don't complain if it's not present */
4824 /* Set V after the second period. */
4825 while (ISDIGIT (*v))
4827 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4833 /* Set Q at the next period or at the end. */
4835 while (ISDIGIT (*q))
4837 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4841 /* Put that part into the command. */
4842 obstack_grow (&obstack, v, q - v);
4844 /* Default to "0" */
4845 obstack_grow (&obstack, &zeroc, 1);
4851 if (input_from_pipe)
4852 do_spec_1 ("-", 0, NULL_PTR);
4856 error ("Spec failure: Unrecognised spec option '%c'", c);
4862 /* Backslash: treat next character as ordinary. */
4867 /* Ordinary character: put it into the current argument. */
4868 obstack_1grow (&obstack, c);
4872 /* End of string. */
4876 /* Return 0 if we call do_spec_1 and that returns -1. */
4880 register const char *p;
4882 const char *filter, *body = NULL, *endbody = NULL;
4884 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4887 int include_blanks = 1;
4888 int elide_switch = 0;
4893 /* A '^' after the open-brace means to not give blanks before args. */
4900 /* A `|' after the open-brace means,
4901 if the test fails, output a single minus sign rather than nothing.
4902 This is used in %{|!pipe:...}. */
4909 /* A `<' after the open-brace means that the switch should be
4910 removed from the command-line. */
4916 negate = suffix = 0;
4919 /* A `!' after the open-brace negates the condition:
4920 succeed if the specified switch is not present. */
4924 /* A `.' after the open-brace means test against the current suffix. */
4933 if (elide_switch && (negate || pipe_p || suffix))
4935 /* It doesn't make sense to mix elision with other flags. We
4936 could fatal() here, but the standard seems to be to abort. */
4942 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
4945 if (*p == '|' && (pipe_p || ordered))
4950 if (*p != '}' && *p != '&')
4952 register int count = 1;
4953 register const char *q = p;
4972 body = p, endbody = p + 1;
4977 int found = (input_suffix != 0
4978 && (long) strlen (input_suffix) == (long) (p - filter)
4979 && strncmp (input_suffix, filter, p - filter) == 0);
4985 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4988 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
4990 /* Substitute all matching switches as separate args. */
4993 for (i = 0; i < n_switches; i++)
4994 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
4995 && check_live_switch (i, p - 1 - filter))
4999 switches[i].live_cond = SWITCH_IGNORE;
5000 switches[i].validated = 1;
5003 ordered = 1, switches[i].ordering = 1;
5008 /* Test for presence of the specified switch. */
5012 /* If name specified ends in *, as in {x*:...},
5013 check for %* and handle that case. */
5014 if (p[-1] == '*' && !negate)
5017 const char *r = body;
5019 /* First see whether we have %*. */
5023 if (*r == '%' && r[1] == '*')
5027 /* If we do, handle that case. */
5030 /* Substitute all matching switches as separate args.
5031 But do this by substituting for %*
5032 in the text that follows the colon. */
5034 unsigned hard_match_len = p - filter - 1;
5035 char *string = save_string (body, endbody - body - 1);
5037 for (i = 0; i < n_switches; i++)
5038 if (!strncmp (switches[i].part1, filter, hard_match_len)
5039 && check_live_switch (i, -1))
5041 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5042 /* Pass any arguments this switch has. */
5043 give_switch (i, 1, 1);
5044 suffix_subst = NULL;
5047 /* We didn't match. Try again. */
5054 /* If name specified ends in *, as in {x*:...},
5055 check for presence of any switch name starting with x. */
5058 for (i = 0; i < n_switches; i++)
5060 unsigned hard_match_len = p - filter - 1;
5062 if (!strncmp (switches[i].part1, filter, hard_match_len)
5063 && check_live_switch (i, hard_match_len))
5070 /* Otherwise, check for presence of exact name specified. */
5073 for (i = 0; i < n_switches; i++)
5075 if (!strncmp (switches[i].part1, filter, p - filter)
5076 && switches[i].part1[p - filter] == 0
5077 && check_live_switch (i, -1))
5085 /* If it is as desired (present for %{s...}, absent for %{!s...})
5086 then substitute either the switch or the specified
5087 conditional text. */
5088 if (present != negate)
5092 switches[i].live_cond = SWITCH_IGNORE;
5093 switches[i].validated = 1;
5095 else if (ordered || *p == '&')
5096 ordered = 1, switches[i].ordering = 1;
5098 give_switch (i, 0, include_blanks);
5100 /* Even if many alternatives are matched, only output once. */
5105 /* Here if a %{|...} conditional fails: output a minus sign,
5106 which means "standard output" or "standard input". */
5107 do_spec_1 ("-", 0, NULL_PTR);
5112 /* We didn't match; try again. */
5119 goto next_ampersand;
5125 /* Doing this set of switches later preserves their command-line
5126 ordering. This is needed for e.g. -U, -D and -A. */
5127 for (i = 0; i < n_switches; i++)
5128 if (switches[i].ordering == 1)
5130 switches[i].ordering = 0;
5131 give_switch (i, 0, include_blanks);
5134 /* Process the spec just once, regardless of match count. */
5137 if (do_spec_1 (save_string (body, endbody - body - 1),
5145 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5146 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5147 spec, or -1 if either exact match or %* is used.
5149 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5150 whose value does not begin with "no-" is obsoleted by the same value
5151 with the "no-", similarly for a switch with the "no-" prefix. */
5154 check_live_switch (switchnum, prefix_length)
5158 const char *name = switches[switchnum].part1;
5161 /* In the common case of {<at-most-one-letter>*}, a negating
5162 switch would always match, so ignore that case. We will just
5163 send the conflicting switches to the compiler phase. */
5164 if (prefix_length >= 0 && prefix_length <= 1)
5167 /* If we already processed this switch and determined if it was
5168 live or not, return our past determination. */
5169 if (switches[switchnum].live_cond != 0)
5170 return switches[switchnum].live_cond > 0;
5172 /* Now search for duplicate in a manner that depends on the name. */
5176 for (i = switchnum + 1; i < n_switches; i++)
5177 if (switches[i].part1[0] == 'O')
5179 switches[switchnum].validated = 1;
5180 switches[switchnum].live_cond = SWITCH_FALSE;
5185 case 'W': case 'f': case 'm':
5186 if (! strncmp (name + 1, "no-", 3))
5188 /* We have Xno-YYY, search for XYYY. */
5189 for (i = switchnum + 1; i < n_switches; i++)
5190 if (switches[i].part1[0] == name[0]
5191 && ! strcmp (&switches[i].part1[1], &name[4]))
5193 switches[switchnum].validated = 1;
5194 switches[switchnum].live_cond = SWITCH_FALSE;
5200 /* We have XYYY, search for Xno-YYY. */
5201 for (i = switchnum + 1; i < n_switches; i++)
5202 if (switches[i].part1[0] == name[0]
5203 && switches[i].part1[1] == 'n'
5204 && switches[i].part1[2] == 'o'
5205 && switches[i].part1[3] == '-'
5206 && !strcmp (&switches[i].part1[4], &name[1]))
5208 switches[switchnum].validated = 1;
5209 switches[switchnum].live_cond = SWITCH_FALSE;
5216 /* Otherwise the switch is live. */
5217 switches[switchnum].live_cond = SWITCH_LIVE;
5221 /* Pass a switch to the current accumulating command
5222 in the same form that we received it.
5223 SWITCHNUM identifies the switch; it is an index into
5224 the vector of switches gcc received, which is `switches'.
5225 This cannot fail since it never finishes a command line.
5227 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5229 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5233 give_switch (switchnum, omit_first_word, include_blanks)
5235 int omit_first_word;
5238 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5241 if (!omit_first_word)
5243 do_spec_1 ("-", 0, NULL_PTR);
5244 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5247 if (switches[switchnum].args != 0)
5250 for (p = switches[switchnum].args; *p; p++)
5252 const char *arg = *p;
5255 do_spec_1 (" ", 0, NULL_PTR);
5258 unsigned length = strlen (arg);
5260 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5261 if (arg[length] == '.')
5263 ((char *)arg)[length] = 0;
5266 do_spec_1 (arg, 1, NULL_PTR);
5269 ((char *)arg)[length] = '.';
5270 do_spec_1 (suffix_subst, 1, NULL_PTR);
5274 do_spec_1 (arg, 1, NULL_PTR);
5278 do_spec_1 (" ", 0, NULL_PTR);
5279 switches[switchnum].validated = 1;
5282 /* Search for a file named NAME trying various prefixes including the
5283 user's -B prefix and some standard ones.
5284 Return the absolute file name found. If nothing is found, return NAME. */
5292 /* Try multilib_dir if it is defined. */
5293 if (multilib_dir != NULL)
5297 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5298 strcpy (try, multilib_dir);
5299 strcat (try, dir_separator_str);
5302 newname = find_a_file (&startfile_prefixes, try, R_OK);
5304 /* If we don't find it in the multi library dir, then fall
5305 through and look for it in the normal places. */
5306 if (newname != NULL)
5310 newname = find_a_file (&startfile_prefixes, name, R_OK);
5311 return newname ? newname : name;
5314 /* Determine whether a directory exists. If LINKER, return 0 for
5315 certain fixed names not needed by the linker. If not LINKER, it is
5316 only important to return 0 if the host machine has a small ARG_MAX
5320 is_directory (path1, path2, linker)
5325 int len1 = strlen (path1);
5326 int len2 = strlen (path2);
5327 char *path = (char *) alloca (3 + len1 + len2);
5331 #ifndef SMALL_ARG_MAX
5336 /* Construct the path from the two parts. Ensure the string ends with "/.".
5337 The resulting path will be a directory even if the given path is a
5339 memcpy (path, path1, len1);
5340 memcpy (path + len1, path2, len2);
5341 cp = path + len1 + len2;
5342 if (!IS_DIR_SEPARATOR (cp[-1]))
5343 *cp++ = DIR_SEPARATOR;
5347 /* Exclude directories that the linker is known to search. */
5350 && strcmp (path, concat (dir_separator_str, "lib",
5351 dir_separator_str, ".", NULL_PTR)) == 0)
5353 && strcmp (path, concat (dir_separator_str, "usr",
5354 dir_separator_str, "lib",
5355 dir_separator_str, ".", NULL_PTR)) == 0)))
5358 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5361 /* Set up the various global variables to indicate that we're processing
5362 the input file named FILENAME. */
5365 set_input (filename)
5366 const char *filename;
5368 register const char *p;
5370 input_filename = filename;
5371 input_filename_length = strlen (input_filename);
5373 input_basename = input_filename;
5374 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5375 /* Skip drive name so 'x:foo' is handled properly. */
5376 if (input_basename[1] == ':')
5377 input_basename += 2;
5379 for (p = input_basename; *p; p++)
5380 if (IS_DIR_SEPARATOR (*p))
5381 input_basename = p + 1;
5383 /* Find a suffix starting with the last period,
5384 and set basename_length to exclude that suffix. */
5385 basename_length = strlen (input_basename);
5386 suffixed_basename_length = basename_length;
5387 p = input_basename + basename_length;
5388 while (p != input_basename && *p != '.')
5390 if (*p == '.' && p != input_basename)
5392 basename_length = p - input_basename;
5393 input_suffix = p + 1;
5399 /* On fatal signals, delete all the temporary files. */
5402 fatal_error (signum)
5405 signal (signum, SIG_DFL);
5406 delete_failure_queue ();
5407 delete_temp_files ();
5408 /* Get the same signal again, this time not handled,
5409 so its normal effect occurs. */
5410 kill (getpid (), signum);
5413 extern int main PARAMS ((int, const char *const *));
5418 const char *const *argv;
5422 int linker_was_run = 0;
5423 char *explicit_link_files;
5426 struct user_specs *uptr;
5428 p = argv[0] + strlen (argv[0]);
5429 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5433 xmalloc_set_program_name (programname);
5435 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5436 /* Perform host dependant initialization when needed. */
5437 GCC_DRIVER_HOST_INITIALIZATION;
5440 /* LC_CTYPE determines the character set used by the terminal so it has be set
5441 to output messages correctly. */
5443 #ifdef HAVE_LC_MESSAGES
5444 setlocale (LC_CTYPE, "");
5445 setlocale (LC_MESSAGES, "");
5447 setlocale (LC_ALL, "");
5450 (void) bindtextdomain (PACKAGE, localedir);
5451 (void) textdomain (PACKAGE);
5453 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5454 signal (SIGINT, fatal_error);
5456 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5457 signal (SIGHUP, fatal_error);
5459 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5460 signal (SIGTERM, fatal_error);
5462 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5463 signal (SIGPIPE, fatal_error);
5467 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5469 obstack_init (&obstack);
5471 /* Build multilib_select, et. al from the separate lines that make up each
5472 multilib selection. */
5474 const char *const *q = multilib_raw;
5477 obstack_init (&multilib_obstack);
5478 while ((p = *q++) != (char *) 0)
5479 obstack_grow (&multilib_obstack, p, strlen (p));
5481 obstack_1grow (&multilib_obstack, 0);
5482 multilib_select = obstack_finish (&multilib_obstack);
5484 q = multilib_matches_raw;
5485 while ((p = *q++) != (char *) 0)
5486 obstack_grow (&multilib_obstack, p, strlen (p));
5488 obstack_1grow (&multilib_obstack, 0);
5489 multilib_matches = obstack_finish (&multilib_obstack);
5491 q = multilib_exclusions_raw;
5492 while ((p = *q++) != (char *) 0)
5493 obstack_grow (&multilib_obstack, p, strlen (p));
5495 obstack_1grow (&multilib_obstack, 0);
5496 multilib_exclusions = obstack_finish (&multilib_obstack);
5499 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5502 obstack_1grow (&multilib_obstack, ' ');
5503 obstack_grow (&multilib_obstack,
5504 multilib_defaults_raw[i],
5505 strlen (multilib_defaults_raw[i]));
5509 obstack_1grow (&multilib_obstack, 0);
5510 multilib_defaults = obstack_finish (&multilib_obstack);
5513 /* Set up to remember the pathname of gcc and any options
5514 needed for collect. We use argv[0] instead of programname because
5515 we need the complete pathname. */
5516 obstack_init (&collect_obstack);
5517 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5518 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5519 putenv (obstack_finish (&collect_obstack));
5521 #ifdef INIT_ENVIRONMENT
5522 /* Set up any other necessary machine specific environment variables. */
5523 putenv (INIT_ENVIRONMENT);
5526 /* Make a table of what switches there are (switches, n_switches).
5527 Make a table of specified input files (infiles, n_infiles).
5528 Decode switches that are handled locally. */
5530 process_command (argc, argv);
5535 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5537 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5538 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5541 for (i = 0; (int) i < n_switches; i++)
5543 const char *const *args;
5546 obstack_grow (&collect_obstack, " ", 1);
5549 obstack_grow (&collect_obstack, "'-", 2);
5550 q = switches[i].part1;
5551 while ((p = strchr (q, '\'')))
5553 obstack_grow (&collect_obstack, q, p - q);
5554 obstack_grow (&collect_obstack, "'\\''", 4);
5557 obstack_grow (&collect_obstack, q, strlen (q));
5558 obstack_grow (&collect_obstack, "'", 1);
5560 for (args = switches[i].args; args && *args; args++)
5562 obstack_grow (&collect_obstack, " '", 2);
5564 while ((p = strchr (q, '\'')))
5566 obstack_grow (&collect_obstack, q, p - q);
5567 obstack_grow (&collect_obstack, "'\\''", 4);
5570 obstack_grow (&collect_obstack, q, strlen (q));
5571 obstack_grow (&collect_obstack, "'", 1);
5574 obstack_grow (&collect_obstack, "\0", 1);
5575 putenv (obstack_finish (&collect_obstack));
5578 /* Initialize the vector of specs to just the default.
5579 This means one element containing 0s, as a terminator. */
5581 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5582 memcpy ((char *) compilers, (char *) default_compilers,
5583 sizeof default_compilers);
5584 n_compilers = n_default_compilers;
5586 /* Read specs from a file if there is one. */
5588 machine_suffix = concat (spec_machine, dir_separator_str,
5589 spec_version, dir_separator_str, NULL_PTR);
5590 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5592 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5593 /* Read the specs file unless it is a default one. */
5594 if (specs_file != 0 && strcmp (specs_file, "specs"))
5595 read_specs (specs_file, TRUE);
5599 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5600 for any override of as, ld and libraries. */
5601 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5602 + strlen (just_machine_suffix)
5603 + sizeof ("specs"));
5605 strcpy (specs_file, standard_exec_prefix);
5606 strcat (specs_file, just_machine_suffix);
5607 strcat (specs_file, "specs");
5608 if (access (specs_file, R_OK) == 0)
5609 read_specs (specs_file, TRUE);
5611 /* If not cross-compiling, look for startfiles in the standard places. */
5612 if (*cross_compile == '0')
5614 if (*md_exec_prefix)
5616 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5617 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5618 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5619 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5622 if (*md_startfile_prefix)
5623 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5624 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5626 if (*md_startfile_prefix_1)
5627 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5628 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5630 /* If standard_startfile_prefix is relative, base it on
5631 standard_exec_prefix. This lets us move the installed tree
5632 as a unit. If GCC_EXEC_PREFIX is defined, base
5633 standard_startfile_prefix on that as well. */
5634 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5635 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5636 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5639 if (gcc_exec_prefix)
5640 add_prefix (&startfile_prefixes,
5641 concat (gcc_exec_prefix, machine_suffix,
5642 standard_startfile_prefix, NULL_PTR),
5643 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5644 add_prefix (&startfile_prefixes,
5645 concat (standard_exec_prefix,
5647 standard_startfile_prefix, NULL_PTR),
5648 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5651 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5652 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5653 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5654 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5655 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5656 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5657 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5662 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5664 add_prefix (&startfile_prefixes,
5665 concat (gcc_exec_prefix, machine_suffix,
5666 standard_startfile_prefix, NULL_PTR),
5667 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5670 /* Process any user specified specs in the order given on the command
5672 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5674 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5675 read_specs (filename ? filename : uptr->filename, FALSE);
5678 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5679 if (gcc_exec_prefix)
5681 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5682 + strlen (spec_version)
5683 + strlen (spec_machine) + 3);
5684 strcpy (temp, gcc_exec_prefix);
5685 strcat (temp, spec_machine);
5686 strcat (temp, dir_separator_str);
5687 strcat (temp, spec_version);
5688 strcat (temp, dir_separator_str);
5689 gcc_exec_prefix = temp;
5692 /* Now we have the specs.
5693 Set the `valid' bits for switches that match anything in any spec. */
5695 validate_all_switches ();
5697 /* Now that we have the switches and the specs, set
5698 the subdirectory based on the options. */
5699 set_multilib_dir ();
5701 /* Warn about any switches that no pass was interested in. */
5703 for (i = 0; (int) i < n_switches; i++)
5704 if (! switches[i].validated)
5705 error ("unrecognized option `-%s'", switches[i].part1);
5707 /* Obey some of the options. */
5709 if (print_search_dirs)
5711 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5712 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5713 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5717 if (print_file_name)
5719 printf ("%s\n", find_file (print_file_name));
5723 if (print_prog_name)
5725 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5726 printf ("%s\n", (newname ? newname : print_prog_name));
5730 if (print_multi_lib)
5732 print_multilib_info ();
5736 if (print_multi_directory)
5738 if (multilib_dir == NULL)
5741 printf ("%s\n", multilib_dir);
5745 if (target_help_flag)
5747 /* Print if any target specific options.*/
5749 /* We do not exit here. Instead we have created a fake input file
5750 called 'target-dummy' which needs to be compiled, and we pass this
5751 on to the various sub-processes, along with the --target-help
5755 if (print_help_list)
5761 printf (_("\nFor bug reporting instructions, please see:\n"));
5762 printf ("%s.\n", GCCBUGURL);
5767 /* We do not exit here. Instead we have created a fake input file
5768 called 'help-dummy' which needs to be compiled, and we pass this
5769 on the the various sub-processes, along with the --help switch. */
5776 notice ("Configured with: %s\n", configuration_arguments);
5778 /* compiler_version is truncated at the first space when initialized
5779 from version string, so truncate version_string at the first space
5780 before comparing. */
5781 for (n = 0; version_string[n]; n++)
5782 if (version_string[n] == ' ')
5785 if (! strncmp (version_string, compiler_version, n)
5786 && compiler_version[n] == 0)
5787 notice ("gcc version %s\n", version_string);
5789 notice ("gcc driver version %s executing gcc version %s\n",
5790 version_string, compiler_version);
5796 if (n_infiles == added_libraries)
5797 fatal ("No input files");
5799 /* Make a place to record the compiler output file names
5800 that correspond to the input files. */
5803 i += lang_specific_extra_outfiles;
5804 outfiles = (const char **) xcalloc (i, sizeof (char *));
5806 /* Record which files were specified explicitly as link input. */
5808 explicit_link_files = xcalloc (1, n_infiles);
5810 for (i = 0; (int) i < n_infiles; i++)
5812 int this_file_error = 0;
5814 /* Tell do_spec what to substitute for %i. */
5816 input_file_number = i;
5817 set_input (infiles[i].name);
5819 /* Use the same thing in %o, unless cp->spec says otherwise. */
5821 outfiles[i] = input_filename;
5823 /* Figure out which compiler from the file's suffix. */
5826 = lookup_compiler (infiles[i].name, input_filename_length,
5827 infiles[i].language);
5829 if (input_file_compiler)
5831 /* Ok, we found an applicable compiler. Run its spec. */
5833 if (input_file_compiler->spec[0] == '#')
5834 error ("%s: %s compiler not installed on this system",
5835 input_filename, &input_file_compiler->spec[1]);
5836 value = do_spec (input_file_compiler->spec);
5838 this_file_error = 1;
5841 /* If this file's name does not contain a recognized suffix,
5842 record it as explicit linker input. */
5845 explicit_link_files[i] = 1;
5847 /* Clear the delete-on-failure queue, deleting the files in it
5848 if this compilation failed. */
5850 if (this_file_error)
5852 delete_failure_queue ();
5855 /* If this compilation succeeded, don't delete those files later. */
5856 clear_failure_queue ();
5859 /* Reset the output file name to the first input file name, for use
5860 with %b in LINK_SPEC on a target that prefers not to emit a.out
5863 set_input (infiles[0].name);
5865 if (error_count == 0)
5867 /* Make sure INPUT_FILE_NUMBER points to first available open
5869 input_file_number = n_infiles;
5870 if (lang_specific_pre_link ())
5874 /* Run ld to link all the compiler output files. */
5876 if (error_count == 0)
5878 int tmp = execution_count;
5880 /* We'll use ld if we can't find collect2. */
5881 if (! strcmp (linker_name_spec, "collect2"))
5883 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5885 linker_name_spec = "ld";
5887 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5889 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5890 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5892 value = do_spec (link_command_spec);
5895 linker_was_run = (tmp != execution_count);
5898 /* If options said don't run linker,
5899 complain about input files to be given to the linker. */
5901 if (! linker_was_run && error_count == 0)
5902 for (i = 0; (int) i < n_infiles; i++)
5903 if (explicit_link_files[i])
5904 error ("%s: linker input file unused because linking not done",
5907 /* Delete some or all of the temporary files we made. */
5910 delete_failure_queue ();
5911 delete_temp_files ();
5913 if (print_help_list)
5915 printf (("\nFor bug reporting instructions, please see:\n"));
5916 printf ("%s\n", GCCBUGURL);
5919 return (signal_count != 0 ? 2
5920 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5924 /* Find the proper compilation spec for the file name NAME,
5925 whose length is LENGTH. LANGUAGE is the specified language,
5926 or 0 if this file is to be passed to the linker. */
5928 static struct compiler *
5929 lookup_compiler (name, length, language)
5932 const char *language;
5934 struct compiler *cp;
5936 /* If this was specified by the user to be a linker input, indicate that. */
5937 if (language != 0 && language[0] == '*')
5940 /* Otherwise, look for the language, if one is spec'd. */
5943 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5944 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5947 error ("language %s not recognized", language);
5951 /* Look for a suffix. */
5952 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5954 if (/* The suffix `-' matches only the file name `-'. */
5955 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5956 || (strlen (cp->suffix) < length
5957 /* See if the suffix matches the end of NAME. */
5958 && !strcmp (cp->suffix,
5959 name + length - strlen (cp->suffix))
5964 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5965 /* look again, but case-insensitively this time. */
5967 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5969 if (/* The suffix `-' matches only the file name `-'. */
5970 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5971 || (strlen (cp->suffix) < length
5972 /* See if the suffix matches the end of NAME. */
5973 && ((!strcmp (cp->suffix,
5974 name + length - strlen (cp->suffix))
5975 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5976 && !strcasecmp (cp->suffix,
5977 name + length - strlen (cp->suffix)))
5983 if (cp >= compilers)
5985 if (cp->spec[0] != '@')
5986 /* A non-alias entry: return it. */
5989 /* An alias entry maps a suffix to a language.
5990 Search for the language; pass 0 for NAME and LENGTH
5991 to avoid infinite recursion if language not found. */
5992 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5998 save_string (s, len)
6002 register char *result = xmalloc (len + 1);
6004 memcpy (result, s, len);
6010 pfatal_with_name (name)
6013 perror_with_name (name);
6014 delete_temp_files ();
6019 perror_with_name (name)
6022 error ("%s: %s", name, xstrerror (errno));
6026 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6027 const char *errmsg_fmt;
6028 const char *errmsg_arg;
6032 int save_errno = errno;
6034 /* Space for trailing '\0' is in %s. */
6035 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6036 sprintf (msg, errmsg_fmt, errmsg_arg);
6042 pfatal_with_name (errmsg_fmt);
6045 /* Output an error message and exit */
6050 fatal ("Internal gcc abort.");
6053 /* Output an error message and exit */
6056 fatal VPARAMS ((const char *msgid, ...))
6058 #ifndef ANSI_PROTOTYPES
6063 VA_START (ap, msgid);
6065 #ifndef ANSI_PROTOTYPES
6066 msgid = va_arg (ap, const char *);
6069 fprintf (stderr, "%s: ", programname);
6070 vfprintf (stderr, _(msgid), ap);
6072 fprintf (stderr, "\n");
6073 delete_temp_files ();
6078 error VPARAMS ((const char *msgid, ...))
6080 #ifndef ANSI_PROTOTYPES
6085 VA_START (ap, msgid);
6087 #ifndef ANSI_PROTOTYPES
6088 msgid = va_arg (ap, const char *);
6091 fprintf (stderr, "%s: ", programname);
6092 vfprintf (stderr, _(msgid), ap);
6095 fprintf (stderr, "\n");
6099 notice VPARAMS ((const char *msgid, ...))
6101 #ifndef ANSI_PROTOTYPES
6106 VA_START (ap, msgid);
6108 #ifndef ANSI_PROTOTYPES
6109 msgid = va_arg (ap, const char *);
6112 vfprintf (stderr, _(msgid), ap);
6117 validate_all_switches ()
6119 struct compiler *comp;
6120 register const char *p;
6122 struct spec_list *spec;
6124 for (comp = compilers; comp->spec; comp++)
6128 if (c == '%' && *p == '{')
6129 /* We have a switch spec. */
6130 validate_switches (p + 1);
6133 /* Look through the linked list of specs read from the specs file. */
6134 for (spec = specs; spec; spec = spec->next)
6136 p = *(spec->ptr_spec);
6138 if (c == '%' && *p == '{')
6139 /* We have a switch spec. */
6140 validate_switches (p + 1);
6143 p = link_command_spec;
6145 if (c == '%' && *p == '{')
6146 /* We have a switch spec. */
6147 validate_switches (p + 1);
6150 /* Look at the switch-name that comes after START
6151 and mark as valid all supplied switches that match it. */
6154 validate_switches (start)
6157 register const char *p = start;
6174 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6179 else if (p[-1] == '*')
6181 /* Mark all matching switches as valid. */
6182 for (i = 0; i < n_switches; i++)
6183 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6184 switches[i].validated = 1;
6188 /* Mark an exact matching switch as valid. */
6189 for (i = 0; i < n_switches; i++)
6191 if (!strncmp (switches[i].part1, filter, p - filter)
6192 && switches[i].part1[p - filter] == 0)
6193 switches[i].validated = 1;
6197 if (*p++ == '|' || p[-1] == '&')
6201 /* Check whether a particular argument was used. The first time we
6202 canonicalize the switches to keep only the ones we care about. */
6212 const char *replace;
6217 static struct mswitchstr *mswitches;
6218 static int n_mswitches;
6223 struct mswitchstr *matches;
6227 /* Break multilib_matches into the component strings of string
6228 and replacement string. */
6229 for (q = multilib_matches; *q != '\0'; q++)
6234 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6236 q = multilib_matches;
6246 matches[i].len = q - matches[i].str;
6248 matches[i].replace = ++q;
6249 while (*q != ';' && *q != '\0')
6255 matches[i].rep_len = q - matches[i].replace;
6261 /* Now build a list of the replacement string for switches that we care
6262 about. Make sure we allocate at least one entry. This prevents
6263 xmalloc from calling fatal, and prevents us from re-executing this
6266 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6267 * (n_switches ? n_switches : 1));
6268 for (i = 0; i < n_switches; i++)
6270 int xlen = strlen (switches[i].part1);
6271 for (j = 0; j < cnt; j++)
6272 if (xlen == matches[j].len
6273 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6275 mswitches[n_mswitches].str = matches[j].replace;
6276 mswitches[n_mswitches].len = matches[j].rep_len;
6277 mswitches[n_mswitches].replace = (char *) 0;
6278 mswitches[n_mswitches].rep_len = 0;
6285 for (i = 0; i < n_mswitches; i++)
6286 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6293 default_arg (p, len)
6297 const char *start, *end;
6299 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6301 while (*start == ' ' || *start == '\t')
6307 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6310 if ((end - start) == len && strncmp (p, start, len) == 0)
6320 /* Work out the subdirectory to use based on the options. The format of
6321 multilib_select is a list of elements. Each element is a subdirectory
6322 name followed by a list of options followed by a semicolon. The format
6323 of multilib_exclusions is the same, but without the preceding
6324 directory. First gcc will check the exclusions, if none of the options
6325 beginning with an exclamation point are present, and all of the other
6326 options are present, then we will ignore this completely. Passing
6327 that, gcc will consider each multilib_select in turn using the same
6328 rules for matching the options. If a match is found, that subdirectory
6335 unsigned int this_path_len;
6336 const char *this_path, *this_arg;
6340 p = multilib_exclusions;
6343 /* Ignore newlines. */
6350 /* Check the arguments. */
6364 while (*p != ' ' && *p != ';')
6371 if (*this_arg != '!')
6379 ok = used_arg (this_arg, p - this_arg);
6393 p = multilib_select;
6396 /* Ignore newlines. */
6403 /* Get the initial path. */
6411 this_path_len = p - this_path;
6413 /* Check the arguments. */
6428 while (*p != ' ' && *p != ';')
6435 if (*this_arg != '!')
6443 /* If this is a default argument, we can just ignore it.
6444 This is true even if this_arg begins with '!'. Beginning
6445 with '!' does not mean that this argument is necessarily
6446 inappropriate for this library: it merely means that
6447 there is a more specific library which uses this
6448 argument. If this argument is a default, we need not
6449 consider that more specific library. */
6450 if (! default_arg (this_arg, p - this_arg))
6452 ok = used_arg (this_arg, p - this_arg);
6463 if (this_path_len != 1
6464 || this_path[0] != '.')
6466 char *new_multilib_dir = xmalloc (this_path_len + 1);
6467 strncpy (new_multilib_dir, this_path, this_path_len);
6468 new_multilib_dir[this_path_len] = '\0';
6469 multilib_dir = new_multilib_dir;
6478 /* Print out the multiple library subdirectory selection
6479 information. This prints out a series of lines. Each line looks
6480 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6481 required. Only the desired options are printed out, the negative
6482 matches. The options are print without a leading dash. There are
6483 no spaces to make it easy to use the information in the shell.
6484 Each subdirectory is printed only once. This assumes the ordering
6485 generated by the genmultilib script. Also, we leave out ones that match
6489 print_multilib_info ()
6491 const char *p = multilib_select;
6492 const char *last_path = 0, *this_path;
6494 unsigned int last_path_len = 0;
6499 /* Ignore newlines. */
6506 /* Get the initial path. */
6515 /* Check for matches with the multilib_exclusions. We don't bother
6516 with the '!' in either list. If any of the exclusion rules match
6517 all of its options with the select rule, we skip it. */
6519 const char *e = multilib_exclusions;
6520 const char *this_arg;
6525 /* Ignore newlines. */
6532 /* Check the arguments. */
6549 while (*e != ' ' && *e != ';')
6560 int len = e - this_arg;
6567 while (*q != ' ' && *q != ';')
6574 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6575 default_arg (this_arg, e - this_arg))
6605 /* If this is a duplicate, skip it. */
6606 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6607 && ! strncmp (last_path, this_path, last_path_len));
6609 last_path = this_path;
6610 last_path_len = p - this_path;
6613 /* If this directory requires any default arguments, we can skip
6614 it. We will already have printed a directory identical to
6615 this one which does not require that default argument. */
6633 while (*q != ' ' && *q != ';')
6641 && default_arg (arg, q - arg))
6656 for (p1 = last_path; p1 < p; p1++)
6675 use_arg = *p != '!';
6680 while (*p != ' ' && *p != ';')
6695 /* If there are extra options, print them now. */
6696 if (multilib_extra && *multilib_extra)
6698 int print_at = TRUE;
6701 for (q = multilib_extra; *q != '\0'; q++)