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 %nSTR Print STR as an notice. STR is terminated by a newline.
364 %x{OPTION} Accumulate an option for %X.
365 %X Output the accumulated linker options specified by compilations.
366 %Y Output the accumulated assembler options specified by compilations.
367 %Z Output the accumulated preprocessor options specified by compilations.
368 %v1 Substitute the major version number of GCC.
369 (For version 2.5.3, this is 2.)
370 %v2 Substitute the minor version number of GCC.
371 (For version 2.5.3, this is 5.)
372 %v3 Substitute the patch level number of GCC.
373 (For version 2.5.3, this is 3.)
374 %a process ASM_SPEC as a spec.
375 This allows config.h to specify part of the spec for running as.
376 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
377 used here. This can be used to run a post-processor after the
378 assembler has done its job.
379 %D Dump out a -L option for each directory in startfile_prefixes.
380 If multilib_dir is set, extra entries are generated with it affixed.
381 %l process LINK_SPEC as a spec.
382 %L process LIB_SPEC as a spec.
383 %G process LIBGCC_SPEC as a spec.
384 %M output multilib_dir with directory separators replaced with "_";
385 if multilib_dir is not set or is ".", output "".
386 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
387 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
388 %c process SIGNED_CHAR_SPEC as a spec.
389 %C process CPP_SPEC as a spec.
390 %1 process CC1_SPEC as a spec.
391 %2 process CC1PLUS_SPEC as a spec.
392 %| output "-" if the input for the current command is coming from a pipe.
393 %* substitute the variable part of a matched option. (See below.)
394 Note that each comma in the substituted string is replaced by
396 %{S} substitutes the -S switch, if that switch was given to CC.
397 If that switch was not specified, this substitutes nothing.
398 Here S is a metasyntactic variable.
399 %{S*} substitutes all the switches specified to CC whose names start
400 with -S. This is used for -o, -I, etc; switches that take
401 arguments. CC considers `-o foo' as being one switch whose
402 name starts with `o'. %{o*} would substitute this text,
403 including the space; thus, two arguments would be generated.
404 %{^S*} likewise, but don't put a blank between a switch and any args.
405 %{S*&T*} likewise, but preserve order of S and T options (the order
406 of S and T in the spec is not significant). Can be any number
407 of ampersand-separated variables; for each the wild card is
408 optional. Useful for CPP as %{D*&U*&A*}.
409 %{S*:X} substitutes X if one or more switches whose names start with -S are
410 specified to CC. Note that the tail part of the -S option
411 (i.e. the part matched by the `*') will be substituted for each
412 occurrence of %* within X.
413 %{<S} remove all occurences of -S from the command line.
414 Note - this option is position dependent. % commands in the
415 spec string before this option will see -S, % commands in the
416 spec string after this option will not.
417 %{S:X} substitutes X, but only if the -S switch was given to CC.
418 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
419 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
420 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
421 %{.S:X} substitutes X, but only if processing a file with suffix S.
422 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
423 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
424 combined with ! and . as above binding stronger than the OR.
425 %(Spec) processes a specification defined in a specs file as *Spec:
426 %[Spec] as above, but put __ around -D arguments
428 The conditional text X in a %{S:X} or %{!S:X} construct may contain
429 other nested % constructs or spaces, or even newlines. They are
430 processed as usual, as described above.
432 The -O, -f, -m, and -W switches are handled specifically in these
433 constructs. If another value of -O or the negated form of a -f, -m, or
434 -W switch is found later in the command line, the earlier switch
435 value is ignored, except with {S*} where S is just one letter; this
436 passes all matching options.
438 The character | at the beginning of the predicate text is used to indicate
439 that a command should be piped to the following command, but only if -pipe
442 Note that it is built into CC which switches take arguments and which
443 do not. You might think it would be useful to generalize this to
444 allow each compiler's spec to say which switches take arguments. But
445 this cannot be done in a consistent fashion. CC cannot even decide
446 which input files have been specified without knowing which switches
447 take arguments, and it must know which input files to compile in order
448 to tell which compilers to run.
450 CC also knows implicitly that arguments starting in `-l' are to be
451 treated as compiler output files, and passed to the linker in their
452 proper position among the other output files. */
454 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
456 /* config.h can define ASM_SPEC to provide extra args to the assembler
457 or extra switch-translations. */
462 /* config.h can define ASM_FINAL_SPEC to run a post processor after
463 the assembler has run. */
464 #ifndef ASM_FINAL_SPEC
465 #define ASM_FINAL_SPEC ""
468 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
469 or extra switch-translations. */
474 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
475 or extra switch-translations. */
480 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
481 or extra switch-translations. */
483 #define CC1PLUS_SPEC ""
486 /* config.h can define LINK_SPEC to provide extra args to the linker
487 or extra switch-translations. */
492 /* config.h can define LIB_SPEC to override the default libraries. */
494 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
497 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
500 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
501 /* Have gcc do the search for libgcc.a. */
502 #define LIBGCC_SPEC "libgcc.a%s"
504 #define LIBGCC_SPEC "-lgcc"
508 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
509 #ifndef STARTFILE_SPEC
510 #define STARTFILE_SPEC \
511 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
514 /* config.h can define SWITCHES_NEED_SPACES to control which options
515 require spaces between the option and the argument. */
516 #ifndef SWITCHES_NEED_SPACES
517 #define SWITCHES_NEED_SPACES ""
520 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
522 #define ENDFILE_SPEC ""
525 /* This spec is used for telling cpp whether char is signed or not. */
526 #ifndef SIGNED_CHAR_SPEC
527 /* Use #if rather than ?:
528 because MIPS C compiler rejects like ?: in initializers. */
529 #if DEFAULT_SIGNED_CHAR
530 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
532 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
537 #define LINKER_NAME "collect2"
540 /* Here is the spec for running the linker, after compiling all files. */
542 /* -u* was put back because both BSD and SysV seem to support it. */
543 /* %{static:} simply prevents an error message if the target machine
544 doesn't handle -static. */
545 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
546 scripts which exist in user specified directories, or in standard
548 #ifndef LINK_COMMAND_SPEC
549 #define LINK_COMMAND_SPEC "\
550 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
551 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
552 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
553 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
554 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
557 #ifndef LINK_LIBGCC_SPEC
558 # ifdef LINK_LIBGCC_SPECIAL
559 /* Don't generate -L options for startfile prefix list. */
560 # define LINK_LIBGCC_SPEC ""
562 /* Do generate them. */
563 # define LINK_LIBGCC_SPEC "%D"
567 static const char *cpp_spec = CPP_SPEC;
568 static const char *cpp_predefines = CPP_PREDEFINES;
569 static const char *cc1_spec = CC1_SPEC;
570 static const char *cc1plus_spec = CC1PLUS_SPEC;
571 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
572 static const char *asm_spec = ASM_SPEC;
573 static const char *asm_final_spec = ASM_FINAL_SPEC;
574 static const char *link_spec = LINK_SPEC;
575 static const char *lib_spec = LIB_SPEC;
576 static const char *libgcc_spec = LIBGCC_SPEC;
577 static const char *endfile_spec = ENDFILE_SPEC;
578 static const char *startfile_spec = STARTFILE_SPEC;
579 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
580 static const char *linker_name_spec = LINKER_NAME;
581 static const char *link_command_spec = LINK_COMMAND_SPEC;
582 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
584 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
585 There should be no need to override these in target dependent files,
586 but we need to copy them to the specs file so that newer versions
587 of the GCC driver can correctly drive older tool chains with the
588 appropriate -B options. */
590 static const char *trad_capable_cpp =
591 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
593 static const char *cpp_options =
594 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
595 %{std*} %{nostdinc*}\
596 %{C} %{v} %{I*} %{P} %{$} %I\
597 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
598 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
599 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
600 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
601 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
602 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
603 %{ffast-math:-D__FAST_MATH__}\
604 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
605 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
606 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
607 %{fshow-column} %{fno-show-column}\
608 %{fleading-underscore} %{fno-leading-underscore}\
609 %{fno-operator-names} %{ftabstop=*} %{remap}\
610 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
613 /* NB: This is shared amongst all front-ends. */
614 static const char *cc1_options =
615 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
616 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
617 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
618 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
619 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
620 %{--target-help:--target-help}\
621 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
622 %{fsyntax-only:-o %j}";
624 static const char *asm_options =
625 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
627 static const char *invoke_as =
628 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
630 /* Some compilers have limits on line lengths, and the multilib_select
631 and/or multilib_matches strings can be very long, so we build them at
633 static struct obstack multilib_obstack;
634 static const char *multilib_select;
635 static const char *multilib_matches;
636 static const char *multilib_defaults;
637 static const char *multilib_exclusions;
638 #include "multilib.h"
640 /* Check whether a particular argument is a default argument. */
642 #ifndef MULTILIB_DEFAULTS
643 #define MULTILIB_DEFAULTS { "" }
646 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
650 struct user_specs *next;
651 const char *filename;
654 static struct user_specs *user_specs_head, *user_specs_tail;
656 /* This defines which switch letters take arguments. */
658 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
659 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
660 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
661 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
662 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
663 || (CHAR) == 'B' || (CHAR) == 'b')
665 #ifndef SWITCH_TAKES_ARG
666 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
669 /* This defines which multi-letter switches take arguments. */
671 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
672 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
673 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
674 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
675 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
676 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
677 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
678 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
680 #ifndef WORD_SWITCH_TAKES_ARG
681 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
684 #ifdef HAVE_EXECUTABLE_SUFFIX
685 /* This defines which switches stop a full compilation. */
686 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
687 ((CHAR) == 'c' || (CHAR) == 'S')
689 #ifndef SWITCH_CURTAILS_COMPILATION
690 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
691 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
695 /* Record the mapping from file suffixes for compilation specs. */
699 const char *suffix; /* Use this compiler for input files
700 whose names end in this suffix. */
702 const char *spec; /* To use this compiler, run this spec. */
704 const char *cpp_spec; /* If non-NULL, substitute this spec
705 for `%C', rather than the usual
709 /* Pointer to a vector of `struct compiler' that gives the spec for
710 compiling a file, based on its suffix.
711 A file that does not end in any of these suffixes will be passed
712 unchanged to the loader and nothing else will be done to it.
714 An entry containing two 0s is used to terminate the vector.
716 If multiple entries match a file, the last matching one is used. */
718 static struct compiler *compilers;
720 /* Number of entries in `compilers', not counting the null terminator. */
722 static int n_compilers;
724 /* The default list of file name suffixes and their compilation specs. */
726 static struct compiler default_compilers[] =
728 /* Add lists of suffixes of known languages here. If those languages
729 were not present when we built the driver, we will hit these copies
730 and be given a more meaningful error than "file not used since
731 linking is not done". */
732 {".m", "#Objective-C"}, {".mi", "#Objective-C"},
733 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".cp", "#C++"},
734 {".c++", "#C++"}, {".C", "#C++"}, {".ii", "#C++"},
735 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
736 {".f", "#Fortran"}, {".for", "#Fortran"}, {".fpp", "#Fortran"},
737 {".F", "#Fortran"}, {".FOR", "#Fortran"}, {".FPP", "#Fortran"},
739 {".p", "#Pascal"}, {".pas", "#Pascal"},
740 {".ch", "#Chill"}, {".chi", "#Chill"},
741 {".java", "#Java"}, {".class", "#Java"},
742 {".zip", "#Java"}, {".jar", "#Java"},
743 /* Next come the entries for C. */
746 /* cc1 has an integrated ISO C preprocessor. We should invoke the
747 external preprocessor if -save-temps or -traditional is given. */
748 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
750 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
751 %(cpp_options) %b.i \n\
752 cc1 -fpreprocessed %b.i %(cc1_options)}\
754 %{traditional|ftraditional|traditional-cpp:\
755 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
756 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
757 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
758 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
759 %{!fsyntax-only:%(invoke_as)}}}}"},
761 "%{!E:%e-E required when input is from standard input}\
762 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
765 "%{!E:%eCompilation of header file requested} \
766 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
767 {".i", "@cpp-output"},
769 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
770 {".s", "@assembler"},
772 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
773 {".S", "@assembler-with-cpp"},
774 {"@assembler-with-cpp",
775 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
776 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
778 /* Mark end of table */
782 /* Number of elements in default_compilers, not counting the terminator. */
784 static int n_default_compilers
785 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
787 /* A vector of options to give to the linker.
788 These options are accumulated by %x,
789 and substituted into the linker command with %X. */
790 static int n_linker_options;
791 static char **linker_options;
793 /* A vector of options to give to the assembler.
794 These options are accumulated by -Wa,
795 and substituted into the assembler command with %Y. */
796 static int n_assembler_options;
797 static char **assembler_options;
799 /* A vector of options to give to the preprocessor.
800 These options are accumulated by -Wp,
801 and substituted into the preprocessor command with %Z. */
802 static int n_preprocessor_options;
803 static char **preprocessor_options;
805 /* Define how to map long options into short ones. */
807 /* This structure describes one mapping. */
810 /* The long option's name. */
812 /* The equivalent short option. */
813 const char *equivalent;
814 /* Argument info. A string of flag chars; NULL equals no options.
815 a => argument required.
816 o => argument optional.
817 j => join argument to equivalent, making one word.
818 * => require other text after NAME as an argument. */
819 const char *arg_info;
822 /* This is the table of mappings. Mappings are tried sequentially
823 for each option encountered; the first one that matches, wins. */
825 struct option_map option_map[] =
827 {"--all-warnings", "-Wall", 0},
828 {"--ansi", "-ansi", 0},
829 {"--assemble", "-S", 0},
830 {"--assert", "-A", "a"},
831 {"--classpath", "-fclasspath=", "aj"},
832 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
833 {"--comments", "-C", 0},
834 {"--compile", "-c", 0},
835 {"--debug", "-g", "oj"},
836 {"--define-macro", "-D", "aj"},
837 {"--dependencies", "-M", 0},
838 {"--dump", "-d", "a"},
839 {"--dumpbase", "-dumpbase", "a"},
840 {"--entry", "-e", 0},
841 {"--extra-warnings", "-W", 0},
842 {"--for-assembler", "-Wa", "a"},
843 {"--for-linker", "-Xlinker", "a"},
844 {"--force-link", "-u", "a"},
845 {"--imacros", "-imacros", "a"},
846 {"--include", "-include", "a"},
847 {"--include-barrier", "-I-", 0},
848 {"--include-directory", "-I", "aj"},
849 {"--include-directory-after", "-idirafter", "a"},
850 {"--include-prefix", "-iprefix", "a"},
851 {"--include-with-prefix", "-iwithprefix", "a"},
852 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
853 {"--include-with-prefix-after", "-iwithprefix", "a"},
854 {"--language", "-x", "a"},
855 {"--library-directory", "-L", "a"},
856 {"--machine", "-m", "aj"},
857 {"--machine-", "-m", "*j"},
858 {"--no-line-commands", "-P", 0},
859 {"--no-precompiled-includes", "-noprecomp", 0},
860 {"--no-standard-includes", "-nostdinc", 0},
861 {"--no-standard-libraries", "-nostdlib", 0},
862 {"--no-warnings", "-w", 0},
863 {"--optimize", "-O", "oj"},
864 {"--output", "-o", "a"},
865 {"--output-class-directory", "-foutput-class-dir=", "ja"},
866 {"--pedantic", "-pedantic", 0},
867 {"--pedantic-errors", "-pedantic-errors", 0},
868 {"--pipe", "-pipe", 0},
869 {"--prefix", "-B", "a"},
870 {"--preprocess", "-E", 0},
871 {"--print-search-dirs", "-print-search-dirs", 0},
872 {"--print-file-name", "-print-file-name=", "aj"},
873 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
874 {"--print-missing-file-dependencies", "-MG", 0},
875 {"--print-multi-lib", "-print-multi-lib", 0},
876 {"--print-multi-directory", "-print-multi-directory", 0},
877 {"--print-prog-name", "-print-prog-name=", "aj"},
878 {"--profile", "-p", 0},
879 {"--profile-blocks", "-a", 0},
880 {"--quiet", "-q", 0},
881 {"--save-temps", "-save-temps", 0},
882 {"--shared", "-shared", 0},
883 {"--silent", "-q", 0},
884 {"--specs", "-specs=", "aj"},
885 {"--static", "-static", 0},
886 {"--std", "-std=", "aj"},
887 {"--symbolic", "-symbolic", 0},
888 {"--target", "-b", "a"},
889 {"--time", "-time", 0},
890 {"--trace-includes", "-H", 0},
891 {"--traditional", "-traditional", 0},
892 {"--traditional-cpp", "-traditional-cpp", 0},
893 {"--trigraphs", "-trigraphs", 0},
894 {"--undefine-macro", "-U", "aj"},
895 {"--use-version", "-V", "a"},
896 {"--user-dependencies", "-MM", 0},
897 {"--verbose", "-v", 0},
898 {"--version", "-dumpversion", 0},
899 {"--warn-", "-W", "*j"},
900 {"--write-dependencies", "-MD", 0},
901 {"--write-user-dependencies", "-MMD", 0},
905 /* Translate the options described by *ARGCP and *ARGVP.
906 Make a new vector and store it back in *ARGVP,
907 and store its length in *ARGVC. */
910 translate_options (argcp, argvp)
912 const char *const **argvp;
916 const char *const *argv = *argvp;
918 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
922 newv[newindex++] = argv[i++];
926 /* Translate -- options. */
927 if (argv[i][0] == '-' && argv[i][1] == '-')
930 /* Find a mapping that applies to this option. */
931 for (j = 0; j < ARRAY_SIZE (option_map); j++)
933 size_t optlen = strlen (option_map[j].name);
934 size_t arglen = strlen (argv[i]);
935 size_t complen = arglen > optlen ? optlen : arglen;
936 const char *arginfo = option_map[j].arg_info;
941 if (!strncmp (argv[i], option_map[j].name, complen))
948 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
949 if (strlen (option_map[k].name) >= arglen
950 && !strncmp (argv[i], option_map[k].name, arglen))
952 error ("Ambiguous abbreviation %s", argv[i]);
956 if (k != ARRAY_SIZE (option_map))
962 /* If the option has an argument, accept that. */
963 if (argv[i][optlen] == '=')
964 arg = argv[i] + optlen + 1;
966 /* If this mapping requires extra text at end of name,
967 accept that as "argument". */
968 else if (strchr (arginfo, '*') != 0)
969 arg = argv[i] + optlen;
971 /* Otherwise, extra text at end means mismatch.
972 Try other mappings. */
977 else if (strchr (arginfo, '*') != 0)
979 error ("Incomplete `%s' option", option_map[j].name);
983 /* Handle arguments. */
984 if (strchr (arginfo, 'a') != 0)
990 error ("Missing argument to `%s' option",
998 else if (strchr (arginfo, '*') != 0)
1000 else if (strchr (arginfo, 'o') == 0)
1003 error ("Extraneous argument to `%s' option",
1004 option_map[j].name);
1008 /* Store the translation as one argv elt or as two. */
1009 if (arg != 0 && strchr (arginfo, 'j') != 0)
1010 newv[newindex++] = concat (option_map[j].equivalent, arg,
1014 newv[newindex++] = option_map[j].equivalent;
1015 newv[newindex++] = arg;
1018 newv[newindex++] = option_map[j].equivalent;
1026 /* Handle old-fashioned options--just copy them through,
1027 with their arguments. */
1028 else if (argv[i][0] == '-')
1030 const char *p = argv[i] + 1;
1034 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1035 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1036 else if (WORD_SWITCH_TAKES_ARG (p))
1037 nskip += WORD_SWITCH_TAKES_ARG (p);
1038 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1041 else if (! strcmp (p, "Xlinker"))
1044 /* Watch out for an option at the end of the command line that
1045 is missing arguments, and avoid skipping past the end of the
1047 if (nskip + i > argc)
1052 newv[newindex++] = argv[i++];
1057 /* Ordinary operands, or +e options. */
1058 newv[newindex++] = argv[i++];
1073 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1074 be considered whitespace. */
1075 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1077 else if (*p == '\n' || *p == ' ' || *p == '\t')
1091 /* Structures to keep track of prefixes to try when looking for files. */
1095 char *prefix; /* String to prepend to the path. */
1096 struct prefix_list *next; /* Next in linked list. */
1097 int require_machine_suffix; /* Don't use without machine_suffix. */
1098 /* 2 means try both machine_suffix and just_machine_suffix. */
1099 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1100 int priority; /* Sort key - priority within list */
1105 struct prefix_list *plist; /* List of prefixes to try */
1106 int max_len; /* Max length of a prefix in PLIST */
1107 const char *name; /* Name of this list (used in config stuff) */
1110 /* List of prefixes to try when looking for executables. */
1112 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1114 /* List of prefixes to try when looking for startup (crt0) files. */
1116 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1118 /* List of prefixes to try when looking for include files. */
1120 static struct path_prefix include_prefixes = { 0, 0, "include" };
1122 /* Suffix to attach to directories searched for commands.
1123 This looks like `MACHINE/VERSION/'. */
1125 static const char *machine_suffix = 0;
1127 /* Suffix to attach to directories searched for commands.
1128 This is just `MACHINE/'. */
1130 static const char *just_machine_suffix = 0;
1132 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1134 static const char *gcc_exec_prefix;
1136 /* Default prefixes to attach to command names. */
1138 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1139 #undef MD_EXEC_PREFIX
1140 #undef MD_STARTFILE_PREFIX
1141 #undef MD_STARTFILE_PREFIX_1
1144 /* If no prefixes defined, use the null string, which will disable them. */
1145 #ifndef MD_EXEC_PREFIX
1146 #define MD_EXEC_PREFIX ""
1148 #ifndef MD_STARTFILE_PREFIX
1149 #define MD_STARTFILE_PREFIX ""
1151 #ifndef MD_STARTFILE_PREFIX_1
1152 #define MD_STARTFILE_PREFIX_1 ""
1155 /* Supply defaults for the standard prefixes. */
1157 #ifndef STANDARD_EXEC_PREFIX
1158 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1160 #ifndef STANDARD_STARTFILE_PREFIX
1161 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1163 #ifndef TOOLDIR_BASE_PREFIX
1164 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1166 #ifndef STANDARD_BINDIR_PREFIX
1167 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1170 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1171 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1172 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1174 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1175 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1176 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1177 static const char *standard_startfile_prefix_1 = "/lib/";
1178 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1180 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1181 static const char *tooldir_prefix;
1183 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1185 /* Subdirectory to use for locating libraries. Set by
1186 set_multilib_dir based on the compilation options. */
1188 static const char *multilib_dir;
1190 /* Structure to keep track of the specs that have been defined so far.
1191 These are accessed using %(specname) or %[specname] in a compiler
1196 /* The following 2 fields must be first */
1197 /* to allow EXTRA_SPECS to be initialized */
1198 const char *name; /* name of the spec. */
1199 const char *ptr; /* available ptr if no static pointer */
1201 /* The following fields are not initialized */
1202 /* by EXTRA_SPECS */
1203 const char **ptr_spec; /* pointer to the spec itself. */
1204 struct spec_list *next; /* Next spec in linked list. */
1205 int name_len; /* length of the name */
1206 int alloc_p; /* whether string was allocated */
1209 #define INIT_STATIC_SPEC(NAME,PTR) \
1210 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1212 /* List of statically defined specs. */
1213 static struct spec_list static_specs[] =
1215 INIT_STATIC_SPEC ("asm", &asm_spec),
1216 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1217 INIT_STATIC_SPEC ("asm_options", &asm_options),
1218 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1219 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1220 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1221 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1222 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1223 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1224 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1225 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1226 INIT_STATIC_SPEC ("link", &link_spec),
1227 INIT_STATIC_SPEC ("lib", &lib_spec),
1228 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1229 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1230 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1231 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1232 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1233 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1234 INIT_STATIC_SPEC ("version", &compiler_version),
1235 INIT_STATIC_SPEC ("multilib", &multilib_select),
1236 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1237 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1238 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1239 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1240 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1241 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1242 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1243 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1244 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1247 #ifdef EXTRA_SPECS /* additional specs needed */
1248 /* Structure to keep track of just the first two args of a spec_list.
1249 That is all that the EXTRA_SPECS macro gives us. */
1256 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1257 static struct spec_list *extra_specs = (struct spec_list *) 0;
1260 /* List of dynamically allocates specs that have been defined so far. */
1262 static struct spec_list *specs = (struct spec_list *) 0;
1264 /* Add appropriate libgcc specs to OBSTACK, taking into account
1265 various permutations of -shared-libgcc, -shared, and such. */
1268 init_gcc_specs (obstack, shared_name, static_name)
1269 struct obstack *obstack;
1270 const char *shared_name;
1271 const char *static_name;
1275 /* If we see -shared-libgcc, then use the shared version. */
1276 sprintf (buffer, "%%{shared-libgcc:%s}", shared_name);
1277 obstack_grow (obstack, buffer, strlen (buffer));
1278 /* If we see -static-libgcc, then use the shared version. */
1279 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1280 obstack_grow (obstack, buffer, strlen (buffer));
1281 /* Otherwise, if we see -shared, then use the shared version. */
1283 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s}}}",
1285 obstack_grow (obstack, buffer, strlen (buffer));
1286 /* Otherwise, use the static version. */
1288 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1290 obstack_grow (obstack, buffer, strlen (buffer));
1293 /* Initialize the specs lookup routines. */
1298 struct spec_list *next = (struct spec_list *) 0;
1299 struct spec_list *sl = (struct spec_list *) 0;
1303 return; /* Already initialized. */
1306 notice ("Using builtin specs.\n");
1309 extra_specs = (struct spec_list *)
1310 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1312 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1314 sl = &extra_specs[i];
1315 sl->name = extra_specs_1[i].name;
1316 sl->ptr = extra_specs_1[i].ptr;
1318 sl->name_len = strlen (sl->name);
1319 sl->ptr_spec = &sl->ptr;
1324 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1326 sl = &static_specs[i];
1331 #ifdef ENABLE_SHARED_LIBGCC
1332 /* ??? If neither -shared-libgcc nor --static-libgcc was
1333 seen, then we should be making an educated guess. Some proposed
1334 heuristics for ELF include:
1336 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1337 program will be doing dynamic loading, which will likely
1338 need the shared libgcc.
1340 (2) If "-ldl", then it's also a fair bet that we're doing
1343 (3) For each ET_DYN we're linking against (either through -lfoo
1344 or /some/path/foo.so), check to see whether it or one of
1345 its dependancies depends on a shared libgcc.
1349 If the runtime is fixed to look for program headers instead
1350 of calling __register_frame_info at all, for each object,
1351 use the shared libgcc if any EH symbol referenced.
1353 If crtstuff is fixed to not invoke __register_frame_info
1354 automatically, for each object, use the shared libgcc if
1355 any non-empty unwind section found.
1357 Doing any of this probably requires invoking an external program to
1358 do the actual object file scanning. */
1360 const char *p = libgcc_spec;
1363 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1364 when given the proper command line arguments. */
1367 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1369 init_gcc_specs (&obstack,
1370 #ifdef NO_SHARED_LIBGCC_MULTILIB
1380 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1382 /* Ug. We don't know shared library extensions. Hope that
1383 systems that use this form don't do shared libraries. */
1384 init_gcc_specs (&obstack,
1385 #ifdef NO_SHARED_LIBGCC_MULTILIB
1397 obstack_1grow (&obstack, *p);
1398 in_sep = (*p == ' ');
1403 obstack_1grow (&obstack, '\0');
1404 libgcc_spec = obstack_finish (&obstack);
1411 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1412 removed; If the spec starts with a + then SPEC is added to the end of the
1416 set_spec (name, spec)
1420 struct spec_list *sl;
1421 const char *old_spec;
1422 int name_len = strlen (name);
1425 /* If this is the first call, initialize the statically allocated specs. */
1428 struct spec_list *next = (struct spec_list *) 0;
1429 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1431 sl = &static_specs[i];
1438 /* See if the spec already exists. */
1439 for (sl = specs; sl; sl = sl->next)
1440 if (name_len == sl->name_len && !strcmp (sl->name, name))
1445 /* Not found - make it. */
1446 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1447 sl->name = xstrdup (name);
1448 sl->name_len = name_len;
1449 sl->ptr_spec = &sl->ptr;
1451 *(sl->ptr_spec) = "";
1456 old_spec = *(sl->ptr_spec);
1457 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1458 ? concat (old_spec, spec + 1, NULL_PTR)
1463 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1466 /* Free the old spec. */
1467 if (old_spec && sl->alloc_p)
1468 free ((PTR) old_spec);
1473 /* Accumulate a command (program name and args), and run it. */
1475 /* Vector of pointers to arguments in the current line of specifications. */
1477 static const char **argbuf;
1479 /* Number of elements allocated in argbuf. */
1481 static int argbuf_length;
1483 /* Number of elements in argbuf currently in use (containing args). */
1485 static int argbuf_index;
1487 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1488 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1491 static struct temp_name {
1492 const char *suffix; /* suffix associated with the code. */
1493 int length; /* strlen (suffix). */
1494 int unique; /* Indicates whether %g or %u/%U was used. */
1495 const char *filename; /* associated filename. */
1496 int filename_length; /* strlen (filename). */
1497 struct temp_name *next;
1500 /* Number of commands executed so far. */
1502 static int execution_count;
1504 /* Number of commands that exited with a signal. */
1506 static int signal_count;
1508 /* Name with which this program was invoked. */
1510 static const char *programname;
1512 /* Clear out the vector of arguments (after a command is executed). */
1520 /* Add one argument to the vector at the end.
1521 This is done when a space is seen or at the end of the line.
1522 If DELETE_ALWAYS is nonzero, the arg is a filename
1523 and the file should be deleted eventually.
1524 If DELETE_FAILURE is nonzero, the arg is a filename
1525 and the file should be deleted if this compilation fails. */
1528 store_arg (arg, delete_always, delete_failure)
1530 int delete_always, delete_failure;
1532 if (argbuf_index + 1 == argbuf_length)
1534 = (const char **) xrealloc (argbuf,
1535 (argbuf_length *= 2) * sizeof (const char *));
1537 argbuf[argbuf_index++] = arg;
1538 argbuf[argbuf_index] = 0;
1540 if (delete_always || delete_failure)
1541 record_temp_file (arg, delete_always, delete_failure);
1544 /* Load specs from a file name named FILENAME, replacing occurances of
1545 various different types of line-endings, \r\n, \n\r and just \r, with
1549 load_specs (filename)
1550 const char *filename;
1554 struct stat statbuf;
1561 notice ("Reading specs from %s\n", filename);
1563 /* Open and stat the file. */
1564 desc = open (filename, O_RDONLY, 0);
1566 pfatal_with_name (filename);
1567 if (stat (filename, &statbuf) < 0)
1568 pfatal_with_name (filename);
1570 /* Read contents of file into BUFFER. */
1571 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1572 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1574 pfatal_with_name (filename);
1575 buffer[readlen] = 0;
1578 specs = xmalloc (readlen + 1);
1580 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1586 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1588 else if (*(buffer_p + 1) == '\n') /* \r\n */
1602 /* Read compilation specs from a file named FILENAME,
1603 replacing the default ones.
1605 A suffix which starts with `*' is a definition for
1606 one of the machine-specific sub-specs. The "suffix" should be
1607 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1608 The corresponding spec is stored in asm_spec, etc.,
1609 rather than in the `compilers' vector.
1611 Anything invalid in the file is a fatal error. */
1614 read_specs (filename, main_p)
1615 const char *filename;
1621 buffer = load_specs (filename);
1623 /* Scan BUFFER for specs, putting them in the vector. */
1629 char *in, *out, *p1, *p2, *p3;
1631 /* Advance P in BUFFER to the next nonblank nocomment line. */
1632 p = skip_whitespace (p);
1636 /* Is this a special command that starts with '%'? */
1637 /* Don't allow this for the main specs file, since it would
1638 encourage people to overwrite it. */
1639 if (*p == '%' && !main_p)
1642 while (*p && *p != '\n')
1648 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1649 && (p1[sizeof "%include" - 1] == ' '
1650 || p1[sizeof "%include" - 1] == '\t'))
1654 p1 += sizeof ("%include");
1655 while (*p1 == ' ' || *p1 == '\t')
1658 if (*p1++ != '<' || p[-2] != '>')
1659 fatal ("specs %%include syntax malformed after %ld characters",
1660 (long) (p1 - buffer + 1));
1663 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1664 read_specs (new_filename ? new_filename : p1, FALSE);
1667 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1668 && (p1[sizeof "%include_noerr" - 1] == ' '
1669 || p1[sizeof "%include_noerr" - 1] == '\t'))
1673 p1 += sizeof "%include_noerr";
1674 while (*p1 == ' ' || *p1 == '\t')
1677 if (*p1++ != '<' || p[-2] != '>')
1678 fatal ("specs %%include syntax malformed after %ld characters",
1679 (long) (p1 - buffer + 1));
1682 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1684 read_specs (new_filename, FALSE);
1685 else if (verbose_flag)
1686 notice ("Could not find specs file %s\n", p1);
1689 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1690 && (p1[sizeof "%rename" - 1] == ' '
1691 || p1[sizeof "%rename" - 1] == '\t'))
1694 struct spec_list *sl;
1696 /* Get original name */
1697 p1 += sizeof "%rename";
1698 while (*p1 == ' ' || *p1 == '\t')
1701 if (! ISALPHA ((unsigned char) *p1))
1702 fatal ("specs %%rename syntax malformed after %ld characters",
1703 (long) (p1 - buffer));
1706 while (*p2 && !ISSPACE ((unsigned char) *p2))
1709 if (*p2 != ' ' && *p2 != '\t')
1710 fatal ("specs %%rename syntax malformed after %ld characters",
1711 (long) (p2 - buffer));
1715 while (*p2 == ' ' || *p2 == '\t')
1718 if (! ISALPHA ((unsigned char) *p2))
1719 fatal ("specs %%rename syntax malformed after %ld characters",
1720 (long) (p2 - buffer));
1722 /* Get new spec name. */
1724 while (*p3 && !ISSPACE ((unsigned char) *p3))
1728 fatal ("specs %%rename syntax malformed after %ld characters",
1729 (long) (p3 - buffer));
1732 for (sl = specs; sl; sl = sl->next)
1733 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1737 fatal ("specs %s spec was not found to be renamed", p1);
1739 if (strcmp (p1, p2) == 0)
1744 notice ("rename spec %s to %s\n", p1, p2);
1746 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1750 set_spec (p2, *(sl->ptr_spec));
1752 free ((PTR) *(sl->ptr_spec));
1754 *(sl->ptr_spec) = "";
1759 fatal ("specs unknown %% command after %ld characters",
1760 (long) (p1 - buffer));
1763 /* Find the colon that should end the suffix. */
1765 while (*p1 && *p1 != ':' && *p1 != '\n')
1768 /* The colon shouldn't be missing. */
1770 fatal ("specs file malformed after %ld characters",
1771 (long) (p1 - buffer));
1773 /* Skip back over trailing whitespace. */
1775 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1778 /* Copy the suffix to a string. */
1779 suffix = save_string (p, p2 - p);
1780 /* Find the next line. */
1781 p = skip_whitespace (p1 + 1);
1783 fatal ("specs file malformed after %ld characters",
1784 (long) (p - buffer));
1787 /* Find next blank line or end of string. */
1788 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1791 /* Specs end at the blank line and do not include the newline. */
1792 spec = save_string (p, p1 - p);
1795 /* Delete backslash-newline sequences from the spec. */
1800 if (in[0] == '\\' && in[1] == '\n')
1802 else if (in[0] == '#')
1803 while (*in && *in != '\n')
1811 if (suffix[0] == '*')
1813 if (! strcmp (suffix, "*link_command"))
1814 link_command_spec = spec;
1816 set_spec (suffix + 1, spec);
1820 /* Add this pair to the vector. */
1822 = ((struct compiler *)
1823 xrealloc (compilers,
1824 (n_compilers + 2) * sizeof (struct compiler)));
1826 compilers[n_compilers].suffix = suffix;
1827 compilers[n_compilers].spec = spec;
1829 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1833 link_command_spec = spec;
1836 if (link_command_spec == 0)
1837 fatal ("spec file has no spec for linking");
1840 /* Record the names of temporary files we tell compilers to write,
1841 and delete them at the end of the run. */
1843 /* This is the common prefix we use to make temp file names.
1844 It is chosen once for each run of this program.
1845 It is substituted into a spec by %g or %j.
1846 Thus, all temp file names contain this prefix.
1847 In practice, all temp file names start with this prefix.
1849 This prefix comes from the envvar TMPDIR if it is defined;
1850 otherwise, from the P_tmpdir macro if that is defined;
1851 otherwise, in /usr/tmp or /tmp;
1852 or finally the current directory if all else fails. */
1854 static const char *temp_filename;
1856 /* Length of the prefix. */
1858 static int temp_filename_length;
1860 /* Define the list of temporary files to delete. */
1865 struct temp_file *next;
1868 /* Queue of files to delete on success or failure of compilation. */
1869 static struct temp_file *always_delete_queue;
1870 /* Queue of files to delete on failure of compilation. */
1871 static struct temp_file *failure_delete_queue;
1873 /* Record FILENAME as a file to be deleted automatically.
1874 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1875 otherwise delete it in any case.
1876 FAIL_DELETE nonzero means delete it if a compilation step fails;
1877 otherwise delete it in any case. */
1880 record_temp_file (filename, always_delete, fail_delete)
1881 const char *filename;
1885 register char *const name = xstrdup (filename);
1889 register struct temp_file *temp;
1890 for (temp = always_delete_queue; temp; temp = temp->next)
1891 if (! strcmp (name, temp->name))
1894 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1895 temp->next = always_delete_queue;
1897 always_delete_queue = temp;
1904 register struct temp_file *temp;
1905 for (temp = failure_delete_queue; temp; temp = temp->next)
1906 if (! strcmp (name, temp->name))
1909 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1910 temp->next = failure_delete_queue;
1912 failure_delete_queue = temp;
1918 /* Delete all the temporary files whose names we previously recorded. */
1921 delete_if_ordinary (name)
1928 printf ("Delete %s? (y or n) ", name);
1932 while ((c = getchar ()) != '\n' && c != EOF)
1935 if (i == 'y' || i == 'Y')
1937 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1938 if (unlink (name) < 0)
1940 perror_with_name (name);
1944 delete_temp_files ()
1946 register struct temp_file *temp;
1948 for (temp = always_delete_queue; temp; temp = temp->next)
1949 delete_if_ordinary (temp->name);
1950 always_delete_queue = 0;
1953 /* Delete all the files to be deleted on error. */
1956 delete_failure_queue ()
1958 register struct temp_file *temp;
1960 for (temp = failure_delete_queue; temp; temp = temp->next)
1961 delete_if_ordinary (temp->name);
1965 clear_failure_queue ()
1967 failure_delete_queue = 0;
1970 /* Routine to add variables to the environment. We do this to pass
1971 the pathname of the gcc driver, and the directories search to the
1972 collect2 program, which is being run as ld. This way, we can be
1973 sure of executing the right compiler when collect2 wants to build
1974 constructors and destructors. Since the environment variables we
1975 use come from an obstack, we don't have to worry about allocating
1984 #ifndef VMS /* nor about VMS */
1986 extern char **environ;
1987 char **old_environ = environ;
1991 int str_len = strlen (str);
1995 while ((ch = *p++) != '\0' && ch != '=')
2001 /* Search for replacing an existing environment variable, and
2002 count the number of total environment variables. */
2003 for (envp = old_environ; *envp; envp++)
2006 if (!strncmp (str, *envp, name_len))
2013 /* Add a new environment variable */
2014 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
2016 memcpy ((char *) (environ + 1), (char *) old_environ,
2017 sizeof (char *) * (num_envs + 1));
2022 #endif /* HAVE_PUTENV */
2024 /* Build a list of search directories from PATHS.
2025 PREFIX is a string to prepend to the list.
2026 If CHECK_DIR_P is non-zero we ensure the directory exists.
2027 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2028 It is also used by the --print-search-dirs flag. */
2031 build_search_list (paths, prefix, check_dir_p)
2032 struct path_prefix *paths;
2036 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2038 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2039 int first_time = TRUE;
2040 struct prefix_list *pprefix;
2042 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2043 obstack_1grow (&collect_obstack, '=');
2045 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2047 int len = strlen (pprefix->prefix);
2051 || is_directory (pprefix->prefix, machine_suffix, 0)))
2054 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2057 obstack_grow (&collect_obstack, pprefix->prefix, len);
2058 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2061 if (just_machine_suffix
2062 && pprefix->require_machine_suffix == 2
2064 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2067 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2070 obstack_grow (&collect_obstack, pprefix->prefix, len);
2071 obstack_grow (&collect_obstack, just_machine_suffix,
2075 if (! pprefix->require_machine_suffix)
2078 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2081 obstack_grow (&collect_obstack, pprefix->prefix, len);
2085 obstack_1grow (&collect_obstack, '\0');
2086 return obstack_finish (&collect_obstack);
2089 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2093 putenv_from_prefixes (paths, env_var)
2094 struct path_prefix *paths;
2095 const char *env_var;
2097 putenv (build_search_list (paths, env_var, 1));
2102 /* FIXME: the location independence code for VMS is hairier than this,
2103 and hasn't been written. */
2105 /* Split a filename into component directories. */
2108 split_directories (name, ptr_num_dirs)
2117 /* Count the number of directories. Special case MSDOS disk names as part
2118 of the initial directory. */
2120 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2121 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2126 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2128 while ((ch = *p++) != '\0')
2130 if (IS_DIR_SEPARATOR (ch))
2133 while (IS_DIR_SEPARATOR (*p))
2138 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2140 /* Now copy the directory parts. */
2143 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2144 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2146 dirs[num_dirs++] = save_string (p, 3);
2149 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2152 while ((ch = *p++) != '\0')
2154 if (IS_DIR_SEPARATOR (ch))
2156 while (IS_DIR_SEPARATOR (*p))
2159 dirs[num_dirs++] = save_string (q, p - q);
2165 dirs[num_dirs++] = save_string (q, p - 1 - q);
2167 dirs[num_dirs] = NULL_PTR;
2169 *ptr_num_dirs = num_dirs;
2174 /* Release storage held by split directories. */
2177 free_split_directories (dirs)
2182 while (dirs[i] != NULL_PTR)
2185 free ((char *) dirs);
2188 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2189 to PREFIX starting with the directory portion of PROGNAME and a relative
2190 pathname of the difference between BIN_PREFIX and PREFIX.
2192 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2193 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2194 function will return /red/green/blue/../omega.
2196 If no relative prefix can be found, return NULL. */
2199 make_relative_prefix (progname, bin_prefix, prefix)
2200 const char *progname;
2201 const char *bin_prefix;
2204 char **prog_dirs, **bin_dirs, **prefix_dirs;
2205 int prog_num, bin_num, prefix_num, std_loc_p;
2208 prog_dirs = split_directories (progname, &prog_num);
2209 bin_dirs = split_directories (bin_prefix, &bin_num);
2211 /* If there is no full pathname, try to find the program by checking in each
2212 of the directories specified in the PATH environment variable. */
2217 GET_ENV_PATH_LIST (temp, "PATH");
2220 char *startp, *endp;
2221 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2223 startp = endp = temp;
2226 if (*endp == PATH_SEPARATOR || *endp == 0)
2231 nstore[1] = DIR_SEPARATOR;
2236 strncpy (nstore, startp, endp - startp);
2237 if (! IS_DIR_SEPARATOR (endp[-1]))
2239 nstore[endp - startp] = DIR_SEPARATOR;
2240 nstore[endp - startp + 1] = 0;
2243 nstore[endp - startp] = 0;
2245 strcat (nstore, progname);
2246 if (! access (nstore, X_OK)
2247 #ifdef HAVE_EXECUTABLE_SUFFIX
2248 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2252 free_split_directories (prog_dirs);
2254 prog_dirs = split_directories (progname, &prog_num);
2260 endp = startp = endp + 1;
2268 /* Remove the program name from comparison of directory names. */
2271 /* Determine if the compiler is installed in the standard location, and if
2272 so, we don't need to specify relative directories. Also, if argv[0]
2273 doesn't contain any directory specifiers, there is not much we can do. */
2275 if (prog_num == bin_num)
2277 for (i = 0; i < bin_num; i++)
2279 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2283 if (prog_num <= 0 || i == bin_num)
2286 free_split_directories (prog_dirs);
2287 free_split_directories (bin_dirs);
2288 prog_dirs = bin_dirs = (char **) 0;
2293 prefix_dirs = split_directories (prefix, &prefix_num);
2295 /* Find how many directories are in common between bin_prefix & prefix. */
2296 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2297 for (common = 0; common < n; common++)
2299 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2303 /* If there are no common directories, there can be no relative prefix. */
2306 free_split_directories (prog_dirs);
2307 free_split_directories (bin_dirs);
2308 free_split_directories (prefix_dirs);
2312 /* Build up the pathnames in argv[0]. */
2313 for (i = 0; i < prog_num; i++)
2314 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2316 /* Now build up the ..'s. */
2317 for (i = common; i < n; i++)
2319 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2320 obstack_1grow (&obstack, DIR_SEPARATOR);
2323 /* Put in directories to move over to prefix. */
2324 for (i = common; i < prefix_num; i++)
2325 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2327 free_split_directories (prog_dirs);
2328 free_split_directories (bin_dirs);
2329 free_split_directories (prefix_dirs);
2331 obstack_1grow (&obstack, '\0');
2332 return obstack_finish (&obstack);
2336 /* Check whether NAME can be accessed in MODE. This is like access,
2337 except that it never considers directories to be executable. */
2340 access_check (name, mode)
2348 if (stat (name, &st) < 0
2349 || S_ISDIR (st.st_mode))
2353 return access (name, mode);
2356 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2357 access to check permissions.
2358 Return 0 if not found, otherwise return its name, allocated with malloc. */
2361 find_a_file (pprefix, name, mode)
2362 struct path_prefix *pprefix;
2367 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2368 struct prefix_list *pl;
2369 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2371 #ifdef DEFAULT_ASSEMBLER
2372 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2373 return xstrdup (DEFAULT_ASSEMBLER);
2376 #ifdef DEFAULT_LINKER
2377 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2378 return xstrdup (DEFAULT_LINKER);
2382 len += strlen (machine_suffix);
2384 temp = xmalloc (len);
2386 /* Determine the filename to execute (special case for absolute paths). */
2388 if (IS_ABSOLUTE_PATHNAME (name))
2390 if (access (name, mode) == 0)
2392 strcpy (temp, name);
2397 for (pl = pprefix->plist; pl; pl = pl->next)
2401 /* Some systems have a suffix for executable files.
2402 So try appending that first. */
2403 if (file_suffix[0] != 0)
2405 strcpy (temp, pl->prefix);
2406 strcat (temp, machine_suffix);
2407 strcat (temp, name);
2408 strcat (temp, file_suffix);
2409 if (access_check (temp, mode) == 0)
2411 if (pl->used_flag_ptr != 0)
2412 *pl->used_flag_ptr = 1;
2417 /* Now try just the name. */
2418 strcpy (temp, pl->prefix);
2419 strcat (temp, machine_suffix);
2420 strcat (temp, name);
2421 if (access_check (temp, mode) == 0)
2423 if (pl->used_flag_ptr != 0)
2424 *pl->used_flag_ptr = 1;
2429 /* Certain prefixes are tried with just the machine type,
2430 not the version. This is used for finding as, ld, etc. */
2431 if (just_machine_suffix && pl->require_machine_suffix == 2)
2433 /* Some systems have a suffix for executable files.
2434 So try appending that first. */
2435 if (file_suffix[0] != 0)
2437 strcpy (temp, pl->prefix);
2438 strcat (temp, just_machine_suffix);
2439 strcat (temp, name);
2440 strcat (temp, file_suffix);
2441 if (access_check (temp, mode) == 0)
2443 if (pl->used_flag_ptr != 0)
2444 *pl->used_flag_ptr = 1;
2449 strcpy (temp, pl->prefix);
2450 strcat (temp, just_machine_suffix);
2451 strcat (temp, name);
2452 if (access_check (temp, mode) == 0)
2454 if (pl->used_flag_ptr != 0)
2455 *pl->used_flag_ptr = 1;
2460 /* Certain prefixes can't be used without the machine suffix
2461 when the machine or version is explicitly specified. */
2462 if (! pl->require_machine_suffix)
2464 /* Some systems have a suffix for executable files.
2465 So try appending that first. */
2466 if (file_suffix[0] != 0)
2468 strcpy (temp, pl->prefix);
2469 strcat (temp, name);
2470 strcat (temp, file_suffix);
2471 if (access_check (temp, mode) == 0)
2473 if (pl->used_flag_ptr != 0)
2474 *pl->used_flag_ptr = 1;
2479 strcpy (temp, pl->prefix);
2480 strcat (temp, name);
2481 if (access_check (temp, mode) == 0)
2483 if (pl->used_flag_ptr != 0)
2484 *pl->used_flag_ptr = 1;
2494 /* Ranking of prefixes in the sort list. -B prefixes are put before
2497 enum path_prefix_priority
2499 PREFIX_PRIORITY_B_OPT,
2500 PREFIX_PRIORITY_LAST
2503 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2504 order according to PRIORITY. Within each PRIORITY, new entries are
2507 If WARN is nonzero, we will warn if no file is found
2508 through this prefix. WARN should point to an int
2509 which will be set to 1 if this entry is used.
2511 COMPONENT is the value to be passed to update_path.
2513 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2514 the complete value of machine_suffix.
2515 2 means try both machine_suffix and just_machine_suffix. */
2518 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2519 struct path_prefix *pprefix;
2521 const char *component;
2522 /* enum prefix_priority */ int priority;
2523 int require_machine_suffix;
2526 struct prefix_list *pl, **prev;
2529 for (prev = &pprefix->plist;
2530 (*prev) != NULL && (*prev)->priority <= priority;
2531 prev = &(*prev)->next)
2534 /* Keep track of the longest prefix */
2536 prefix = update_path (prefix, component);
2537 len = strlen (prefix);
2538 if (len > pprefix->max_len)
2539 pprefix->max_len = len;
2541 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2542 pl->prefix = save_string (prefix, len);
2543 pl->require_machine_suffix = require_machine_suffix;
2544 pl->used_flag_ptr = warn;
2545 pl->priority = priority;
2549 /* Insert after PREV */
2554 /* Execute the command specified by the arguments on the current line of spec.
2555 When using pipes, this includes several piped-together commands
2556 with `|' between them.
2558 Return 0 if successful, -1 if failed. */
2564 int n_commands; /* # of command. */
2568 const char *prog; /* program name. */
2569 const char **argv; /* vector of args. */
2570 int pid; /* pid of process for this command. */
2573 struct command *commands; /* each command buffer with above info. */
2575 /* Count # of piped commands. */
2576 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2577 if (strcmp (argbuf[i], "|") == 0)
2580 /* Get storage for each command. */
2581 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2583 /* Split argbuf into its separate piped processes,
2584 and record info about each one.
2585 Also search for the programs that are to be run. */
2587 commands[0].prog = argbuf[0]; /* first command. */
2588 commands[0].argv = &argbuf[0];
2589 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2592 commands[0].argv[0] = string;
2594 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2595 if (strcmp (argbuf[i], "|") == 0)
2596 { /* each command. */
2597 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2598 fatal ("-pipe not supported");
2600 argbuf[i] = 0; /* termination of command args. */
2601 commands[n_commands].prog = argbuf[i + 1];
2602 commands[n_commands].argv = &argbuf[i + 1];
2603 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2605 commands[n_commands].argv[0] = string;
2609 argbuf[argbuf_index] = 0;
2611 /* If -v, print what we are about to do, and maybe query. */
2615 /* For help listings, put a blank line between sub-processes. */
2616 if (print_help_list)
2617 fputc ('\n', stderr);
2619 /* Print each piped command as a separate line. */
2620 for (i = 0; i < n_commands; i++)
2622 const char *const *j;
2624 for (j = commands[i].argv; *j; j++)
2625 fprintf (stderr, " %s", *j);
2627 /* Print a pipe symbol after all but the last command. */
2628 if (i + 1 != n_commands)
2629 fprintf (stderr, " |");
2630 fprintf (stderr, "\n");
2634 notice ("\nGo ahead? (y or n) ");
2638 while (getchar () != '\n')
2641 if (i != 'y' && i != 'Y')
2646 /* Run each piped subprocess. */
2648 for (i = 0; i < n_commands; i++)
2650 char *errmsg_fmt, *errmsg_arg;
2651 const char *string = commands[i].argv[0];
2653 /* For some bizarre reason, the second argument of execvp() is
2654 char *const *, not const char *const *. */
2655 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2656 programname, temp_filename,
2657 &errmsg_fmt, &errmsg_arg,
2658 ((i == 0 ? PEXECUTE_FIRST : 0)
2659 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2660 | (string == commands[i].prog
2661 ? PEXECUTE_SEARCH : 0)
2662 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2664 if (commands[i].pid == -1)
2665 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2667 if (string != commands[i].prog)
2668 free ((PTR) string);
2673 /* Wait for all the subprocesses to finish.
2674 We don't care what order they finish in;
2675 we know that N_COMMANDS waits will get them all.
2676 Ignore subprocesses that we don't know about,
2677 since they can be spawned by the process that exec'ed us. */
2681 #ifdef HAVE_GETRUSAGE
2683 double ut = 0.0, st = 0.0;
2686 for (i = 0; i < n_commands;)
2692 pid = pwait (commands[i].pid, &status, 0);
2696 #ifdef HAVE_GETRUSAGE
2699 /* getrusage returns the total resource usage of all children
2700 up to now. Copy the previous values into prus, get the
2701 current statistics, then take the difference. */
2704 getrusage (RUSAGE_CHILDREN, &rus);
2705 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2706 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2707 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2709 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2710 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2711 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2715 for (j = 0; j < n_commands; j++)
2716 if (commands[j].pid == pid)
2719 if (WIFSIGNALED (status))
2722 /* SIGPIPE is a special case. It happens in -pipe mode
2723 when the compiler dies before the preprocessor is
2724 done, or the assembler dies before the compiler is
2725 done. There's generally been an error already, and
2726 this is just fallout. So don't generate another error
2727 unless we would otherwise have succeeded. */
2728 if (WTERMSIG (status) == SIGPIPE
2729 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2734 Internal error: %s (program %s)\n\
2735 Please submit a full bug report.\n\
2736 See %s for instructions.",
2737 strsignal (WTERMSIG (status)), commands[j].prog,
2742 else if (WIFEXITED (status)
2743 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2745 if (WEXITSTATUS (status) > greatest_status)
2746 greatest_status = WEXITSTATUS (status);
2749 #ifdef HAVE_GETRUSAGE
2750 if (report_times && ut + st != 0)
2751 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2760 /* Find all the switches given to us
2761 and make a vector describing them.
2762 The elements of the vector are strings, one per switch given.
2763 If a switch uses following arguments, then the `part1' field
2764 is the switch itself and the `args' field
2765 is a null-terminated vector containing the following arguments.
2766 The `live_cond' field is:
2768 1 if the switch is true in a conditional spec,
2769 -1 if false (overridden by a later switch)
2770 -2 if this switch should be ignored (used in %{<S})
2771 The `validated' field is nonzero if any spec has looked at this switch;
2772 if it remains zero at the end of the run, it must be meaningless. */
2775 #define SWITCH_FALSE -1
2776 #define SWITCH_IGNORE -2
2777 #define SWITCH_LIVE 1
2784 unsigned char validated;
2785 unsigned char ordering;
2788 static struct switchstr *switches;
2790 static int n_switches;
2795 const char *language;
2798 /* Also a vector of input files specified. */
2800 static struct infile *infiles;
2802 static int n_infiles;
2804 /* This counts the number of libraries added by lang_specific_driver, so that
2805 we can tell if there were any user supplied any files or libraries. */
2807 static int added_libraries;
2809 /* And a vector of corresponding output files is made up later. */
2811 static const char **outfiles;
2813 /* Used to track if none of the -B paths are used. */
2816 /* Used to track if standard path isn't used and -b or -V is specified. */
2817 static int warn_std;
2819 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2820 static int *warn_std_ptr = 0;
2822 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2824 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2825 is true if we should look for an executable suffix as well. */
2828 convert_filename (name, do_exe)
2838 len = strlen (name);
2840 #ifdef HAVE_OBJECT_SUFFIX
2841 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2843 && name[len - 2] == '.'
2844 && name[len - 1] == 'o')
2846 obstack_grow (&obstack, name, len - 2);
2847 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2848 name = obstack_finish (&obstack);
2852 #ifdef HAVE_EXECUTABLE_SUFFIX
2853 /* If there is no filetype, make it the executable suffix (which includes
2854 the "."). But don't get confused if we have just "-o". */
2855 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2858 for (i = len - 1; i >= 0; i--)
2859 if (IS_DIR_SEPARATOR (name[i]))
2862 for (i++; i < len; i++)
2866 obstack_grow (&obstack, name, len);
2867 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2868 name = obstack_finish (&obstack);
2875 /* Display the command line switches accepted by gcc. */
2879 printf (_("Usage: %s [options] file...\n"), programname);
2880 fputs (_("Options:\n"), stdout);
2882 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2883 fputs (_(" --help Display this information\n"), stdout);
2884 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2886 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2887 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2888 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2889 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2890 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2891 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2892 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2893 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2894 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2896 -print-multi-lib Display the mapping between command line options and\n\
2897 multiple library search directories\n"), stdout);
2898 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2899 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2900 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2901 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2902 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2903 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2904 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2905 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2906 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2907 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2908 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2909 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2910 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2911 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2912 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2913 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2914 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2916 -x <language> Specify the language of the following input files\n\
2917 Permissable languages include: c c++ assembler none\n\
2918 'none' means revert to the default behaviour of\n\
2919 guessing the language based on the file's extension\n\
2923 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2924 the various sub-processes invoked by %s. In order to pass other options\n\
2925 on to these processes the -W<letter> options must be used.\n\
2928 /* The rest of the options are displayed by invocations of the various
2933 add_preprocessor_option (option, len)
2937 n_preprocessor_options++;
2939 if (! preprocessor_options)
2940 preprocessor_options
2941 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2943 preprocessor_options
2944 = (char **) xrealloc (preprocessor_options,
2945 n_preprocessor_options * sizeof (char *));
2947 preprocessor_options [n_preprocessor_options - 1] =
2948 save_string (option, len);
2952 add_assembler_option (option, len)
2956 n_assembler_options++;
2958 if (! assembler_options)
2960 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2963 = (char **) xrealloc (assembler_options,
2964 n_assembler_options * sizeof (char *));
2966 assembler_options [n_assembler_options - 1] = save_string (option, len);
2970 add_linker_option (option, len)
2976 if (! linker_options)
2978 = (char **) xmalloc (n_linker_options * sizeof (char *));
2981 = (char **) xrealloc (linker_options,
2982 n_linker_options * sizeof (char *));
2984 linker_options [n_linker_options - 1] = save_string (option, len);
2987 /* Create the vector `switches' and its contents.
2988 Store its length in `n_switches'. */
2991 process_command (argc, argv)
2993 const char *const *argv;
2998 const char *spec_lang = 0;
2999 int last_language_n_infiles;
3002 int lang_n_infiles = 0;
3003 #ifdef MODIFY_TARGET_NAME
3004 int is_modify_target_name;
3008 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3012 added_libraries = 0;
3014 /* Figure compiler version from version string. */
3016 compiler_version = temp1 = xstrdup (version_string);
3018 for (; *temp1; ++temp1)
3027 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3028 see if we can create it from the pathname specified in argv[0]. */
3031 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3032 if (!gcc_exec_prefix)
3034 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3035 standard_exec_prefix);
3036 if (gcc_exec_prefix)
3037 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
3041 if (gcc_exec_prefix)
3043 int len = strlen (gcc_exec_prefix);
3045 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3046 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3048 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3049 if (IS_DIR_SEPARATOR (*temp)
3050 && strncmp (temp + 1, "lib", 3) == 0
3051 && IS_DIR_SEPARATOR (temp[4])
3052 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3053 len -= sizeof ("/lib/gcc-lib/") - 1;
3056 set_std_prefix (gcc_exec_prefix, len);
3057 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3058 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3059 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3060 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3063 /* COMPILER_PATH and LIBRARY_PATH have values
3064 that are lists of directory names with colons. */
3066 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3069 const char *startp, *endp;
3070 char *nstore = (char *) alloca (strlen (temp) + 3);
3072 startp = endp = temp;
3075 if (*endp == PATH_SEPARATOR || *endp == 0)
3077 strncpy (nstore, startp, endp - startp);
3079 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3080 else if (!IS_DIR_SEPARATOR (endp[-1]))
3082 nstore[endp - startp] = DIR_SEPARATOR;
3083 nstore[endp - startp + 1] = 0;
3086 nstore[endp - startp] = 0;
3087 add_prefix (&exec_prefixes, nstore, 0,
3088 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3089 add_prefix (&include_prefixes,
3090 concat (nstore, "include", NULL_PTR),
3091 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3094 endp = startp = endp + 1;
3101 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3102 if (temp && *cross_compile == '0')
3104 const char *startp, *endp;
3105 char *nstore = (char *) alloca (strlen (temp) + 3);
3107 startp = endp = temp;
3110 if (*endp == PATH_SEPARATOR || *endp == 0)
3112 strncpy (nstore, startp, endp - startp);
3114 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3115 else if (!IS_DIR_SEPARATOR (endp[-1]))
3117 nstore[endp - startp] = DIR_SEPARATOR;
3118 nstore[endp - startp + 1] = 0;
3121 nstore[endp - startp] = 0;
3122 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3123 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3126 endp = startp = endp + 1;
3133 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3134 GET_ENV_PATH_LIST (temp, "LPATH");
3135 if (temp && *cross_compile == '0')
3137 const char *startp, *endp;
3138 char *nstore = (char *) alloca (strlen (temp) + 3);
3140 startp = endp = temp;
3143 if (*endp == PATH_SEPARATOR || *endp == 0)
3145 strncpy (nstore, startp, endp - startp);
3147 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3148 else if (!IS_DIR_SEPARATOR (endp[-1]))
3150 nstore[endp - startp] = DIR_SEPARATOR;
3151 nstore[endp - startp + 1] = 0;
3154 nstore[endp - startp] = 0;
3155 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3156 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3159 endp = startp = endp + 1;
3166 /* Convert new-style -- options to old-style. */
3167 translate_options (&argc, &argv);
3169 /* Do language-specific adjustment/addition of flags. */
3170 lang_specific_driver (&argc, &argv, &added_libraries);
3172 /* Scan argv twice. Here, the first time, just count how many switches
3173 there will be in their vector, and how many input files in theirs.
3174 Also parse any switches that determine the configuration name, such as -b.
3175 Here we also parse the switches that cc itself uses (e.g. -v). */
3177 for (i = 1; i < argc; i++)
3179 if (! strcmp (argv[i], "-dumpspecs"))
3181 struct spec_list *sl;
3183 for (sl = specs; sl; sl = sl->next)
3184 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3185 if (link_command_spec)
3186 printf ("*link_command:\n%s\n\n", link_command_spec);
3189 else if (! strcmp (argv[i], "-dumpversion"))
3191 printf ("%s\n", spec_version);
3194 else if (! strcmp (argv[i], "-dumpmachine"))
3196 printf ("%s\n", spec_machine);
3199 else if (strcmp (argv[i], "-fhelp") == 0)
3201 /* translate_options () has turned --help into -fhelp. */
3202 print_help_list = 1;
3204 /* We will be passing a dummy file on to the sub-processes. */
3208 add_preprocessor_option ("--help", 6);
3209 add_assembler_option ("--help", 6);
3210 add_linker_option ("--help", 6);
3212 else if (strcmp (argv[i], "-ftarget-help") == 0)
3214 /* translate_options() has turned --target-help into -ftarget-help. */
3215 target_help_flag = 1;
3217 /* We will be passing a dummy file on to the sub-processes. */
3221 add_preprocessor_option ("--target-help", 13);
3222 add_assembler_option ("--target-help", 13);
3223 add_linker_option ("--target-help", 13);
3225 else if (! strcmp (argv[i], "-pass-exit-codes"))
3227 pass_exit_codes = 1;
3230 else if (! strcmp (argv[i], "-print-search-dirs"))
3231 print_search_dirs = 1;
3232 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3233 print_file_name = "libgcc.a";
3234 else if (! strncmp (argv[i], "-print-file-name=", 17))
3235 print_file_name = argv[i] + 17;
3236 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3237 print_prog_name = argv[i] + 17;
3238 else if (! strcmp (argv[i], "-print-multi-lib"))
3239 print_multi_lib = 1;
3240 else if (! strcmp (argv[i], "-print-multi-directory"))
3241 print_multi_directory = 1;
3242 else if (! strncmp (argv[i], "-Wa,", 4))
3245 /* Pass the rest of this option to the assembler. */
3247 /* Split the argument at commas. */
3249 for (j = 4; argv[i][j]; j++)
3250 if (argv[i][j] == ',')
3252 add_assembler_option (argv[i] + prev, j - prev);
3256 /* Record the part after the last comma. */
3257 add_assembler_option (argv[i] + prev, j - prev);
3259 else if (! strncmp (argv[i], "-Wp,", 4))
3262 /* Pass the rest of this option to the preprocessor. */
3264 /* Split the argument at commas. */
3266 for (j = 4; argv[i][j]; j++)
3267 if (argv[i][j] == ',')
3269 add_preprocessor_option (argv[i] + prev, j - prev);
3273 /* Record the part after the last comma. */
3274 add_preprocessor_option (argv[i] + prev, j - prev);
3276 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3277 /* The +e options to the C++ front-end. */
3279 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3282 /* Split the argument at commas. */
3283 for (j = 3; argv[i][j]; j++)
3284 n_infiles += (argv[i][j] == ',');
3286 else if (strcmp (argv[i], "-Xlinker") == 0)
3289 fatal ("argument to `-Xlinker' is missing");
3294 else if (strncmp (argv[i], "-l", 2) == 0)
3296 else if (strcmp (argv[i], "-save-temps") == 0)
3298 save_temps_flag = 1;
3301 else if (strcmp (argv[i], "-specs") == 0)
3303 struct user_specs *user = (struct user_specs *)
3304 xmalloc (sizeof (struct user_specs));
3306 fatal ("argument to `-specs' is missing");
3308 user->next = (struct user_specs *) 0;
3309 user->filename = argv[i];
3310 if (user_specs_tail)
3311 user_specs_tail->next = user;
3313 user_specs_head = user;
3314 user_specs_tail = user;
3316 else if (strncmp (argv[i], "-specs=", 7) == 0)
3318 struct user_specs *user = (struct user_specs *)
3319 xmalloc (sizeof (struct user_specs));
3320 if (strlen (argv[i]) == 7)
3321 fatal ("argument to `-specs=' is missing");
3323 user->next = (struct user_specs *) 0;
3324 user->filename = argv[i] + 7;
3325 if (user_specs_tail)
3326 user_specs_tail->next = user;
3328 user_specs_head = user;
3329 user_specs_tail = user;
3331 else if (strcmp (argv[i], "-time") == 0)
3333 else if (argv[i][0] == '-' && argv[i][1] != 0)
3335 register const char *p = &argv[i][1];
3336 register int c = *p;
3342 if (p[1] == 0 && i + 1 == argc)
3343 fatal ("argument to `-b' is missing");
3345 spec_machine = argv[++i];
3347 spec_machine = p + 1;
3349 warn_std_ptr = &warn_std;
3355 if (p[1] == 0 && i + 1 == argc)
3356 fatal ("argument to `-B' is missing");
3362 /* As a kludge, if the arg is "[foo/]stageN/", just
3363 add "[foo/]include" to the include prefix. */
3364 int len = strlen (value);
3367 && (IS_DIR_SEPARATOR (value[len - 8]))))
3368 && strncmp (value + len - 7, "stage", 5) == 0
3369 && ISDIGIT (value[len - 2])
3370 && (IS_DIR_SEPARATOR (value[len - 1])))
3373 add_prefix (&include_prefixes, "include", NULL_PTR,
3374 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3377 char *string = xmalloc (len + 1);
3378 strncpy (string, value, len-7);
3379 strcpy (string+len-7, "include");
3380 add_prefix (&include_prefixes, string, NULL_PTR,
3381 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3385 add_prefix (&exec_prefixes, value, NULL_PTR,
3386 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3387 add_prefix (&startfile_prefixes, value, NULL_PTR,
3388 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3389 add_prefix (&include_prefixes, concat (value, "include",
3392 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3397 case 'v': /* Print our subcommands and print versions. */
3399 /* If they do anything other than exactly `-v', don't set
3400 verbose_flag; rather, continue on to give the error. */
3408 if (p[1] == 0 && i + 1 == argc)
3409 fatal ("argument to `-V' is missing");
3411 spec_version = argv[++i];
3413 spec_version = p + 1;
3414 compiler_version = spec_version;
3415 warn_std_ptr = &warn_std;
3417 /* Validate the version number. Use the same checks
3418 done when inserting it into a spec.
3420 The format of the version string is
3421 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3423 const char *v = compiler_version;
3425 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3426 while (! ISDIGIT (*v))
3429 if (v > compiler_version && v[-1] != '-')
3430 fatal ("invalid version number format");
3432 /* Set V after the first period. */
3433 while (ISDIGIT (*v))
3437 fatal ("invalid version number format");
3440 while (ISDIGIT (*v))
3443 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3444 fatal ("invalid version number format");
3460 #if defined(HAVE_EXECUTABLE_SUFFIX)
3465 /* Forward scan, just in case -S or -c is specified
3472 if (argv[j][0] == '-')
3474 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3480 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3481 j += skip - (argv[j][2] != 0);
3482 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3489 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3491 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3493 argv[i] = convert_filename (argv[i], ! have_c);
3500 #ifdef MODIFY_TARGET_NAME
3501 is_modify_target_name = 0;
3504 j < sizeof modify_target / sizeof modify_target[0]; j++)
3505 if (! strcmp (argv[i], modify_target[j].sw))
3508 = (char *) xmalloc (strlen (modify_target[j].str)
3509 + strlen (spec_machine));
3512 int made_addition = 0;
3514 is_modify_target_name = 1;
3515 for (p = spec_machine, q = new_name; *p != 0; )
3517 if (modify_target[j].add_del == DELETE
3518 && (! strncmp (q, modify_target[j].str,
3519 strlen (modify_target[j].str))))
3520 p += strlen (modify_target[j].str);
3521 else if (modify_target[j].add_del == ADD
3522 && ! made_addition && *p == '-')
3524 for (r = modify_target[j].str; *r != 0; )
3532 spec_machine = new_name;
3535 if (is_modify_target_name)
3541 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3542 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3543 else if (WORD_SWITCH_TAKES_ARG (p))
3544 i += WORD_SWITCH_TAKES_ARG (p);
3554 if (have_c && have_o && lang_n_infiles > 1)
3555 fatal ("cannot specify -o with -c or -S and multiple compilations");
3557 /* Set up the search paths before we go looking for config files. */
3559 /* These come before the md prefixes so that we will find gcc's subcommands
3560 (such as cpp) rather than those of the host system. */
3561 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3562 as well as trying the machine and the version. */
3564 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3565 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3566 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3567 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3568 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3569 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3572 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3573 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3574 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3575 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3577 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3578 dir_separator_str, NULL_PTR);
3580 /* If tooldir is relative, base it on exec_prefixes. A relative
3581 tooldir lets us move the installed tree as a unit.
3583 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3584 directories, so that we can search both the user specified directory
3585 and the standard place. */
3587 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3589 if (gcc_exec_prefix)
3591 char *gcc_exec_tooldir_prefix
3592 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3593 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3595 add_prefix (&exec_prefixes,
3596 concat (gcc_exec_tooldir_prefix, "bin",
3597 dir_separator_str, NULL_PTR),
3598 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3599 add_prefix (&startfile_prefixes,
3600 concat (gcc_exec_tooldir_prefix, "lib",
3601 dir_separator_str, NULL_PTR),
3602 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3605 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3606 dir_separator_str, spec_version,
3607 dir_separator_str, tooldir_prefix, NULL_PTR);
3610 add_prefix (&exec_prefixes,
3611 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3612 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3613 add_prefix (&startfile_prefixes,
3614 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3615 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3617 /* More prefixes are enabled in main, after we read the specs file
3618 and determine whether this is cross-compilation or not. */
3620 /* Then create the space for the vectors and scan again. */
3622 switches = ((struct switchstr *)
3623 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3624 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3627 last_language_n_infiles = -1;
3629 /* This, time, copy the text of each switch and store a pointer
3630 to the copy in the vector of switches.
3631 Store all the infiles in their vector. */
3633 for (i = 1; i < argc; i++)
3635 /* Just skip the switches that were handled by the preceding loop. */
3636 #ifdef MODIFY_TARGET_NAME
3637 is_modify_target_name = 0;
3639 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3640 if (! strcmp (argv[i], modify_target[j].sw))
3641 is_modify_target_name = 1;
3643 if (is_modify_target_name)
3647 if (! strncmp (argv[i], "-Wa,", 4))
3649 else if (! strncmp (argv[i], "-Wp,", 4))
3651 else if (! strcmp (argv[i], "-pass-exit-codes"))
3653 else if (! strcmp (argv[i], "-print-search-dirs"))
3655 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3657 else if (! strncmp (argv[i], "-print-file-name=", 17))
3659 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3661 else if (! strcmp (argv[i], "-print-multi-lib"))
3663 else if (! strcmp (argv[i], "-print-multi-directory"))
3665 else if (strcmp (argv[i], "-ftarget-help") == 0)
3667 /* Create a dummy input file, so that we can pass --target-help on to
3668 the various sub-processes. */
3669 infiles[n_infiles].language = "c";
3670 infiles[n_infiles++].name = "target-dummy";
3672 /* Preserve the --target-help switch so that it can be caught by
3673 the cc1 spec string. */
3674 switches[n_switches].part1 = "--target-help";
3675 switches[n_switches].args = 0;
3676 switches[n_switches].live_cond = SWITCH_OK;
3677 switches[n_switches].validated = 0;
3681 else if (strcmp (argv[i], "-fhelp") == 0)
3685 /* Create a dummy input file, so that we can pass --help on to
3686 the various sub-processes. */
3687 infiles[n_infiles].language = "c";
3688 infiles[n_infiles++].name = "help-dummy";
3690 /* Preserve the --help switch so that it can be caught by the
3692 switches[n_switches].part1 = "--help";
3693 switches[n_switches].args = 0;
3694 switches[n_switches].live_cond = SWITCH_OK;
3695 switches[n_switches].validated = 0;
3700 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3702 /* Compensate for the +e options to the C++ front-end;
3703 they're there simply for cfront call-compatibility. We do
3704 some magic in default_compilers to pass them down properly.
3705 Note we deliberately start at the `+' here, to avoid passing
3706 -e0 or -e1 down into the linker. */
3707 switches[n_switches].part1 = &argv[i][0];
3708 switches[n_switches].args = 0;
3709 switches[n_switches].live_cond = SWITCH_OK;
3710 switches[n_switches].validated = 0;
3713 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3716 /* Split the argument at commas. */
3718 for (j = 4; argv[i][j]; j++)
3719 if (argv[i][j] == ',')
3721 infiles[n_infiles].language = "*";
3722 infiles[n_infiles++].name
3723 = save_string (argv[i] + prev, j - prev);
3726 /* Record the part after the last comma. */
3727 infiles[n_infiles].language = "*";
3728 infiles[n_infiles++].name = argv[i] + prev;
3730 else if (strcmp (argv[i], "-Xlinker") == 0)
3732 infiles[n_infiles].language = "*";
3733 infiles[n_infiles++].name = argv[++i];
3735 else if (strncmp (argv[i], "-l", 2) == 0)
3737 infiles[n_infiles].language = "*";
3738 infiles[n_infiles++].name = argv[i];
3740 else if (strcmp (argv[i], "-specs") == 0)
3742 else if (strncmp (argv[i], "-specs=", 7) == 0)
3744 else if (strcmp (argv[i], "-time") == 0)
3746 else if ((save_temps_flag || report_times)
3747 && strcmp (argv[i], "-pipe") == 0)
3749 /* -save-temps overrides -pipe, so that temp files are produced */
3750 if (save_temps_flag)
3751 error ("Warning: -pipe ignored because -save-temps specified");
3752 /* -time overrides -pipe because we can't get correct stats when
3753 multiple children are running at once. */
3754 else if (report_times)
3755 error ("Warning: -pipe ignored because -time specified");
3757 else if (argv[i][0] == '-' && argv[i][1] != 0)
3759 const char *p = &argv[i][1];
3764 if (p[1] == 0 && i + 1 == argc)
3765 fatal ("argument to `-x' is missing");
3767 spec_lang = argv[++i];
3770 if (! strcmp (spec_lang, "none"))
3771 /* Suppress the warning if -xnone comes after the last input
3772 file, because alternate command interfaces like g++ might
3773 find it useful to place -xnone after each input file. */
3776 last_language_n_infiles = n_infiles;
3779 switches[n_switches].part1 = p;
3780 /* Deal with option arguments in separate argv elements. */
3781 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3782 || WORD_SWITCH_TAKES_ARG (p))
3785 int n_args = WORD_SWITCH_TAKES_ARG (p);
3789 /* Count only the option arguments in separate argv elements. */
3790 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3792 if (i + n_args >= argc)
3793 fatal ("argument to `-%s' is missing", p);
3794 switches[n_switches].args
3795 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3797 switches[n_switches].args[j++] = argv[++i];
3798 /* Null-terminate the vector. */
3799 switches[n_switches].args[j] = 0;
3801 else if (strchr (switches_need_spaces, c))
3803 /* On some systems, ld cannot handle some options without
3804 a space. So split the option from its argument. */
3805 char *part1 = (char *) xmalloc (2);
3810 switches[n_switches].part1 = part1;
3811 switches[n_switches].args
3812 = (const char **) xmalloc (2 * sizeof (const char *));
3813 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3814 strcpy (tmp, &p[1]);
3815 switches[n_switches].args[1] = 0;
3818 switches[n_switches].args = 0;
3820 switches[n_switches].live_cond = SWITCH_OK;
3821 switches[n_switches].validated = 0;
3822 switches[n_switches].ordering = 0;
3823 /* These are always valid, since gcc.c itself understands it. */
3824 if (!strcmp (p, "save-temps")
3825 || !strcmp (p, "static-libgcc")
3826 || !strcmp (p, "shared-libgcc"))
3827 switches[n_switches].validated = 1;
3830 char ch = switches[n_switches].part1[0];
3831 if (ch == 'V' || ch == 'b' || ch == 'B')
3832 switches[n_switches].validated = 1;
3838 #ifdef HAVE_OBJECT_SUFFIX
3839 argv[i] = convert_filename (argv[i], 0);
3842 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3844 perror_with_name (argv[i]);
3849 infiles[n_infiles].language = spec_lang;
3850 infiles[n_infiles++].name = argv[i];
3855 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3856 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3858 switches[n_switches].part1 = 0;
3859 infiles[n_infiles].name = 0;
3862 /* Process a spec string, accumulating and running commands. */
3864 /* These variables describe the input file name.
3865 input_file_number is the index on outfiles of this file,
3866 so that the output file name can be stored for later use by %o.
3867 input_basename is the start of the part of the input file
3868 sans all directory names, and basename_length is the number
3869 of characters starting there excluding the suffix .c or whatever. */
3871 const char *input_filename;
3872 static int input_file_number;
3873 size_t input_filename_length;
3874 static int basename_length;
3875 static int suffixed_basename_length;
3876 static const char *input_basename;
3877 static const char *input_suffix;
3879 /* The compiler used to process the current input file. */
3880 static struct compiler *input_file_compiler;
3882 /* These are variables used within do_spec and do_spec_1. */
3884 /* Nonzero if an arg has been started and not yet terminated
3885 (with space, tab or newline). */
3886 static int arg_going;
3888 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3889 is a temporary file name. */
3890 static int delete_this_arg;
3892 /* Nonzero means %w has been seen; the next arg to be terminated
3893 is the output file name of this compilation. */
3894 static int this_is_output_file;
3896 /* Nonzero means %s has been seen; the next arg to be terminated
3897 is the name of a library file and we should try the standard
3898 search dirs for it. */
3899 static int this_is_library_file;
3901 /* Nonzero means that the input of this command is coming from a pipe. */
3902 static int input_from_pipe;
3904 /* Nonnull means substitute this for any suffix when outputting a switches
3906 static const char *suffix_subst;
3908 /* Process the spec SPEC and run the commands specified therein.
3909 Returns 0 if the spec is successfully processed; -1 if failed. */
3919 delete_this_arg = 0;
3920 this_is_output_file = 0;
3921 this_is_library_file = 0;
3922 input_from_pipe = 0;
3923 suffix_subst = NULL;
3925 value = do_spec_1 (spec, 0, NULL_PTR);
3927 /* Force out any unfinished command.
3928 If -pipe, this forces out the last command if it ended in `|'. */
3931 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3934 if (argbuf_index > 0)
3941 /* Process the sub-spec SPEC as a portion of a larger spec.
3942 This is like processing a whole spec except that we do
3943 not initialize at the beginning and we do not supply a
3944 newline by default at the end.
3945 INSWITCH nonzero means don't process %-sequences in SPEC;
3946 in this case, % is treated as an ordinary character.
3947 This is used while substituting switches.
3948 INSWITCH nonzero also causes SPC not to terminate an argument.
3950 Value is zero unless a line was finished
3951 and the command on that line reported an error. */
3954 do_spec_1 (spec, inswitch, soft_matched_part)
3957 const char *soft_matched_part;
3959 register const char *p = spec;
3966 /* If substituting a switch, treat all chars like letters.
3967 Otherwise, NL, SPC, TAB and % are special. */
3968 switch (inswitch ? 'a' : c)
3971 /* End of line: finish any pending argument,
3972 then run the pending command if one has been started. */
3975 obstack_1grow (&obstack, 0);
3976 string = obstack_finish (&obstack);
3977 if (this_is_library_file)
3978 string = find_file (string);
3979 store_arg (string, delete_this_arg, this_is_output_file);
3980 if (this_is_output_file)
3981 outfiles[input_file_number] = string;
3985 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3987 for (i = 0; i < n_switches; i++)
3988 if (!strcmp (switches[i].part1, "pipe"))
3991 /* A `|' before the newline means use a pipe here,
3992 but only if -pipe was specified.
3993 Otherwise, execute now and don't pass the `|' as an arg. */
3996 input_from_pipe = 1;
3997 switches[i].validated = 1;
4004 if (argbuf_index > 0)
4010 /* Reinitialize for a new command, and for a new argument. */
4013 delete_this_arg = 0;
4014 this_is_output_file = 0;
4015 this_is_library_file = 0;
4016 input_from_pipe = 0;
4020 /* End any pending argument. */
4023 obstack_1grow (&obstack, 0);
4024 string = obstack_finish (&obstack);
4025 if (this_is_library_file)
4026 string = find_file (string);
4027 store_arg (string, delete_this_arg, this_is_output_file);
4028 if (this_is_output_file)
4029 outfiles[input_file_number] = string;
4033 obstack_1grow (&obstack, c);
4039 /* Space or tab ends an argument if one is pending. */
4042 obstack_1grow (&obstack, 0);
4043 string = obstack_finish (&obstack);
4044 if (this_is_library_file)
4045 string = find_file (string);
4046 store_arg (string, delete_this_arg, this_is_output_file);
4047 if (this_is_output_file)
4048 outfiles[input_file_number] = string;
4050 /* Reinitialize for a new argument. */
4052 delete_this_arg = 0;
4053 this_is_output_file = 0;
4054 this_is_library_file = 0;
4061 fatal ("Invalid specification! Bug in cc.");
4064 obstack_grow (&obstack, input_basename, basename_length);
4069 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4074 delete_this_arg = 2;
4077 /* Dump out the directories specified with LIBRARY_PATH,
4078 followed by the absolute directories
4079 that we search for startfiles. */
4082 struct prefix_list *pl = startfile_prefixes.plist;
4083 size_t bufsize = 100;
4084 char *buffer = (char *) xmalloc (bufsize);
4087 for (; pl; pl = pl->next)
4089 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4090 /* Used on systems which record the specified -L dirs
4091 and use them to search for dynamic linking. */
4092 /* Relative directories always come from -B,
4093 and it is better not to use them for searching
4094 at run time. In particular, stage1 loses. */
4095 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4098 /* Try subdirectory if there is one. */
4099 if (multilib_dir != NULL)
4103 if (strlen (pl->prefix) + strlen (machine_suffix)
4105 bufsize = (strlen (pl->prefix)
4106 + strlen (machine_suffix)) * 2 + 1;
4107 buffer = (char *) xrealloc (buffer, bufsize);
4108 strcpy (buffer, pl->prefix);
4109 strcat (buffer, machine_suffix);
4110 if (is_directory (buffer, multilib_dir, 1))
4112 do_spec_1 ("-L", 0, NULL_PTR);
4113 #ifdef SPACE_AFTER_L_OPTION
4114 do_spec_1 (" ", 0, NULL_PTR);
4116 do_spec_1 (buffer, 1, NULL_PTR);
4117 do_spec_1 (multilib_dir, 1, NULL_PTR);
4118 /* Make this a separate argument. */
4119 do_spec_1 (" ", 0, NULL_PTR);
4122 if (!pl->require_machine_suffix)
4124 if (is_directory (pl->prefix, multilib_dir, 1))
4126 do_spec_1 ("-L", 0, NULL_PTR);
4127 #ifdef SPACE_AFTER_L_OPTION
4128 do_spec_1 (" ", 0, NULL_PTR);
4130 do_spec_1 (pl->prefix, 1, NULL_PTR);
4131 do_spec_1 (multilib_dir, 1, NULL_PTR);
4132 /* Make this a separate argument. */
4133 do_spec_1 (" ", 0, NULL_PTR);
4139 if (is_directory (pl->prefix, machine_suffix, 1))
4141 do_spec_1 ("-L", 0, NULL_PTR);
4142 #ifdef SPACE_AFTER_L_OPTION
4143 do_spec_1 (" ", 0, NULL_PTR);
4145 do_spec_1 (pl->prefix, 1, NULL_PTR);
4146 /* Remove slash from machine_suffix. */
4147 if (strlen (machine_suffix) >= bufsize)
4148 bufsize = strlen (machine_suffix) * 2 + 1;
4149 buffer = (char *) xrealloc (buffer, bufsize);
4150 strcpy (buffer, machine_suffix);
4151 idx = strlen (buffer);
4152 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4153 buffer[idx - 1] = 0;
4154 do_spec_1 (buffer, 1, NULL_PTR);
4155 /* Make this a separate argument. */
4156 do_spec_1 (" ", 0, NULL_PTR);
4159 if (!pl->require_machine_suffix)
4161 if (is_directory (pl->prefix, "", 1))
4163 do_spec_1 ("-L", 0, NULL_PTR);
4164 #ifdef SPACE_AFTER_L_OPTION
4165 do_spec_1 (" ", 0, NULL_PTR);
4167 /* Remove slash from pl->prefix. */
4168 if (strlen (pl->prefix) >= bufsize)
4169 bufsize = strlen (pl->prefix) * 2 + 1;
4170 buffer = (char *) xrealloc (buffer, bufsize);
4171 strcpy (buffer, pl->prefix);
4172 idx = strlen (buffer);
4173 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4174 buffer[idx - 1] = 0;
4175 do_spec_1 (buffer, 1, NULL_PTR);
4176 /* Make this a separate argument. */
4177 do_spec_1 (" ", 0, NULL_PTR);
4186 /* %efoo means report an error with `foo' as error message
4187 and don't execute any more commands for this file. */
4191 while (*p != 0 && *p != '\n')
4193 buf = (char *) alloca (p - q + 1);
4194 strncpy (buf, q, p - q);
4201 /* %nfoo means report an notice with `foo' on stderr. */
4205 while (*p != 0 && *p != '\n')
4207 buf = (char *) alloca (p - q + 1);
4208 strncpy (buf, q, p - q);
4210 notice ("%s\n", buf);
4220 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4221 and it is not a directory, and it is writable, use it.
4222 Otherwise, fall through and treat this like any other
4225 if ((!save_temps_flag)
4226 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4227 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4229 obstack_grow (&obstack, HOST_BIT_BUCKET,
4230 strlen (HOST_BIT_BUCKET));
4231 delete_this_arg = 0;
4239 if (save_temps_flag)
4241 obstack_grow (&obstack, input_basename, basename_length);
4242 delete_this_arg = 0;
4246 struct temp_name *t;
4248 const char *suffix = p;
4249 char *saved_suffix = NULL;
4251 while (*p == '.' || ISALPHA ((unsigned char) *p))
4253 suffix_length = p - suffix;
4254 if (p[0] == '%' && p[1] == 'O')
4257 /* We don't support extra suffix characters after %O. */
4258 if (*p == '.' || ISALPHA ((unsigned char) *p))
4260 if (suffix_length == 0)
4261 suffix = OBJECT_SUFFIX;
4265 = (char *) xmalloc (suffix_length
4266 + strlen (OBJECT_SUFFIX));
4267 strncpy (saved_suffix, suffix, suffix_length);
4268 strcpy (saved_suffix + suffix_length,
4271 suffix_length += strlen (OBJECT_SUFFIX);
4274 /* See if we already have an association of %g/%u/%U and
4276 for (t = temp_names; t; t = t->next)
4277 if (t->length == suffix_length
4278 && strncmp (t->suffix, suffix, suffix_length) == 0
4279 && t->unique == (c != 'g'))
4282 /* Make a new association if needed. %u and %j require one. */
4283 if (t == 0 || c == 'u' || c == 'j')
4287 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4288 t->next = temp_names;
4291 t->length = suffix_length;
4292 t->suffix = save_string (suffix, suffix_length);
4293 t->unique = (c != 'g');
4294 temp_filename = make_temp_file (t->suffix);
4295 temp_filename_length = strlen (temp_filename);
4296 t->filename = temp_filename;
4297 t->filename_length = temp_filename_length;
4301 free (saved_suffix);
4303 obstack_grow (&obstack, t->filename, t->filename_length);
4304 delete_this_arg = 1;
4310 obstack_grow (&obstack, input_filename, input_filename_length);
4316 struct prefix_list *pl = include_prefixes.plist;
4318 if (gcc_exec_prefix)
4320 do_spec_1 ("-iprefix", 1, NULL_PTR);
4321 /* Make this a separate argument. */
4322 do_spec_1 (" ", 0, NULL_PTR);
4323 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4324 do_spec_1 (" ", 0, NULL_PTR);
4327 for (; pl; pl = pl->next)
4329 do_spec_1 ("-isystem", 1, NULL_PTR);
4330 /* Make this a separate argument. */
4331 do_spec_1 (" ", 0, NULL_PTR);
4332 do_spec_1 (pl->prefix, 1, NULL_PTR);
4333 do_spec_1 (" ", 0, NULL_PTR);
4340 int max = n_infiles;
4341 max += lang_specific_extra_outfiles;
4343 for (i = 0; i < max; i++)
4345 store_arg (outfiles[i], 0, 0);
4350 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4355 this_is_library_file = 1;
4359 this_is_output_file = 1;
4364 int cur_index = argbuf_index;
4365 /* Handle the {...} following the %W. */
4368 p = handle_braces (p + 1);
4371 /* If any args were output, mark the last one for deletion
4373 if (argbuf_index != cur_index)
4374 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4378 /* %x{OPTION} records OPTION for %X to output. */
4384 /* Skip past the option value and make a copy. */
4389 string = save_string (p1 + 1, p - p1 - 2);
4391 /* See if we already recorded this option. */
4392 for (i = 0; i < n_linker_options; i++)
4393 if (! strcmp (string, linker_options[i]))
4399 /* This option is new; add it. */
4400 add_linker_option (string, strlen (string));
4404 /* Dump out the options accumulated previously using %x. */
4406 for (i = 0; i < n_linker_options; i++)
4408 do_spec_1 (linker_options[i], 1, NULL_PTR);
4409 /* Make each accumulated option a separate argument. */
4410 do_spec_1 (" ", 0, NULL_PTR);
4414 /* Dump out the options accumulated previously using -Wa,. */
4416 for (i = 0; i < n_assembler_options; i++)
4418 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4419 /* Make each accumulated option a separate argument. */
4420 do_spec_1 (" ", 0, NULL_PTR);
4424 /* Dump out the options accumulated previously using -Wp,. */
4426 for (i = 0; i < n_preprocessor_options; i++)
4428 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4429 /* Make each accumulated option a separate argument. */
4430 do_spec_1 (" ", 0, NULL_PTR);
4434 /* Here are digits and numbers that just process
4435 a certain constant string as a spec. */
4438 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4444 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4450 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4456 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4462 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4470 = (input_file_compiler->cpp_spec
4471 ? input_file_compiler->cpp_spec
4473 value = do_spec_1 (spec, 0, NULL_PTR);
4480 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4486 value = do_spec_1 (link_spec, 0, NULL_PTR);
4492 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4498 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4504 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4510 len = strlen (multilib_dir);
4511 obstack_blank (&obstack, len + 1);
4512 p = obstack_next_free (&obstack) - (len + 1);
4515 for (q = multilib_dir; *q ; ++q, ++p)
4516 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4522 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4526 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4530 if (! strncmp (y, "-D", 2))
4531 /* Copy the whole option. */
4532 while (*y && *y != ' ' && *y != '\t')
4534 else if (*y == ' ' || *y == '\t')
4535 /* Copy whitespace to the result. */
4537 /* Don't copy other options. */
4544 value = do_spec_1 (buf, 0, NULL_PTR);
4552 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4556 /* Copy all of CPP_PREDEFINES into BUF,
4557 but force them all into the reserved name space if they
4558 aren't already there. The reserved name space is all
4559 identifiers beginning with two underscores or with one
4560 underscore and a capital letter. We do the forcing by
4561 adding up to two underscores to the beginning and end
4562 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4567 if (! strncmp (y, "-D", 2))
4576 && ! ISUPPER ((unsigned char) *(y + 1))))
4578 /* Stick __ at front of macro name. */
4582 /* Arrange to stick __ at the end as well. */
4586 /* Copy the macro name. */
4587 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4600 /* Copy the value given, if any. */
4601 while (*y && *y != ' ' && *y != '\t')
4604 else if (*y == ' ' || *y == '\t')
4605 /* Copy whitespace to the result. */
4607 /* Don't copy -A options */
4613 /* Copy all of CPP_PREDEFINES into BUF,
4614 but put __ after every -D. */
4618 if (! strncmp (y, "-D", 2))
4624 && ! ISUPPER ((unsigned char) *(y + 1))))
4626 /* Stick -D__ at front of macro name. */
4633 /* Copy the macro name. */
4634 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4637 /* Copy the value given, if any. */
4638 while (*y && *y != ' ' && *y != '\t')
4643 /* Do not copy this macro - we have just done it before */
4644 while (*y && *y != ' ' && *y != '\t')
4648 else if (*y == ' ' || *y == '\t')
4649 /* Copy whitespace to the result. */
4651 /* Don't copy -A options. */
4657 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4661 if (! strncmp (y, "-A", 2))
4662 /* Copy the whole option. */
4663 while (*y && *y != ' ' && *y != '\t')
4665 else if (*y == ' ' || *y == '\t')
4666 /* Copy whitespace to the result. */
4668 /* Don't copy other options. */
4675 value = do_spec_1 (buf, 0, NULL_PTR);
4682 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4687 /* Here we define characters other than letters and digits. */
4690 p = handle_braces (p);
4696 obstack_1grow (&obstack, '%');
4703 while (p[len] && p[len] != ' ' && p[len] != '%')
4705 suffix_subst = save_string (p - 1, len + 1);
4711 if (soft_matched_part)
4713 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4714 do_spec_1 (" ", 0, NULL_PTR);
4717 /* Catch the case where a spec string contains something like
4718 '%{foo:%*}'. ie there is no * in the pattern on the left
4719 hand side of the :. */
4720 error ("Spec failure: '%%*' has not been initialised by pattern match");
4723 /* Process a string found as the value of a spec given by name.
4724 This feature allows individual machine descriptions
4725 to add and use their own specs.
4726 %[...] modifies -D options the way %P does;
4727 %(...) uses the spec unmodified. */
4729 error ("Warning: use of obsolete %%[ operator in specs");
4732 const char *name = p;
4733 struct spec_list *sl;
4736 /* The string after the S/P is the name of a spec that is to be
4738 while (*p && *p != ')' && *p != ']')
4741 /* See if it's in the list. */
4742 for (len = p - name, sl = specs; sl; sl = sl->next)
4743 if (sl->name_len == len && !strncmp (sl->name, name, len))
4745 name = *(sl->ptr_spec);
4747 notice ("Processing spec %c%s%c, which is '%s'\n",
4748 c, sl->name, (c == '(') ? ')' : ']', name);
4757 value = do_spec_1 (name, 0, NULL_PTR);
4763 char *x = (char *) alloca (strlen (name) * 2 + 1);
4765 const char *y = name;
4768 /* Copy all of NAME into BUF, but put __ after
4769 every -D and at the end of each arg. */
4772 if (! strncmp (y, "-D", 2))
4783 && (*y == ' ' || *y == '\t' || *y == '='
4784 || *y == '}' || *y == 0))
4797 value = do_spec_1 (buf, 0, NULL_PTR);
4803 /* Discard the closing paren or bracket. */
4811 int c1 = *p++; /* Select first or second version number. */
4812 const char *v = compiler_version;
4814 static const char zeroc = '0';
4816 /* The format of the version string is
4817 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4819 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4820 while (! ISDIGIT (*v))
4822 if (v > compiler_version && v[-1] != '-')
4825 /* If desired, advance to second version number. */
4828 /* Set V after the first period. */
4829 while (ISDIGIT (*v))
4836 /* If desired, advance to third version number.
4837 But don't complain if it's not present */
4840 /* Set V after the second period. */
4841 while (ISDIGIT (*v))
4843 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4849 /* Set Q at the next period or at the end. */
4851 while (ISDIGIT (*q))
4853 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4857 /* Put that part into the command. */
4858 obstack_grow (&obstack, v, q - v);
4860 /* Default to "0" */
4861 obstack_grow (&obstack, &zeroc, 1);
4867 if (input_from_pipe)
4868 do_spec_1 ("-", 0, NULL_PTR);
4872 error ("Spec failure: Unrecognised spec option '%c'", c);
4878 /* Backslash: treat next character as ordinary. */
4883 /* Ordinary character: put it into the current argument. */
4884 obstack_1grow (&obstack, c);
4888 /* End of string. */
4892 /* Return 0 if we call do_spec_1 and that returns -1. */
4896 register const char *p;
4898 const char *filter, *body = NULL, *endbody = NULL;
4900 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4903 int include_blanks = 1;
4904 int elide_switch = 0;
4909 /* A '^' after the open-brace means to not give blanks before args. */
4916 /* A `|' after the open-brace means,
4917 if the test fails, output a single minus sign rather than nothing.
4918 This is used in %{|!pipe:...}. */
4925 /* A `<' after the open-brace means that the switch should be
4926 removed from the command-line. */
4932 negate = suffix = 0;
4935 /* A `!' after the open-brace negates the condition:
4936 succeed if the specified switch is not present. */
4940 /* A `.' after the open-brace means test against the current suffix. */
4949 if (elide_switch && (negate || pipe_p || suffix))
4951 /* It doesn't make sense to mix elision with other flags. We
4952 could fatal() here, but the standard seems to be to abort. */
4958 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
4961 if (*p == '|' && (pipe_p || ordered))
4966 if (*p != '}' && *p != '&')
4968 register int count = 1;
4969 register const char *q = p;
4988 body = p, endbody = p + 1;
4993 int found = (input_suffix != 0
4994 && (long) strlen (input_suffix) == (long) (p - filter)
4995 && strncmp (input_suffix, filter, p - filter) == 0);
5001 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
5004 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
5006 /* Substitute all matching switches as separate args. */
5009 for (i = 0; i < n_switches; i++)
5010 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
5011 && check_live_switch (i, p - 1 - filter))
5015 switches[i].live_cond = SWITCH_IGNORE;
5016 switches[i].validated = 1;
5019 ordered = 1, switches[i].ordering = 1;
5024 /* Test for presence of the specified switch. */
5028 /* If name specified ends in *, as in {x*:...},
5029 check for %* and handle that case. */
5030 if (p[-1] == '*' && !negate)
5033 const char *r = body;
5035 /* First see whether we have %*. */
5039 if (*r == '%' && r[1] == '*')
5043 /* If we do, handle that case. */
5046 /* Substitute all matching switches as separate args.
5047 But do this by substituting for %*
5048 in the text that follows the colon. */
5050 unsigned hard_match_len = p - filter - 1;
5051 char *string = save_string (body, endbody - body - 1);
5053 for (i = 0; i < n_switches; i++)
5054 if (!strncmp (switches[i].part1, filter, hard_match_len)
5055 && check_live_switch (i, -1))
5057 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5058 /* Pass any arguments this switch has. */
5059 give_switch (i, 1, 1);
5060 suffix_subst = NULL;
5063 /* We didn't match. Try again. */
5070 /* If name specified ends in *, as in {x*:...},
5071 check for presence of any switch name starting with x. */
5074 for (i = 0; i < n_switches; i++)
5076 unsigned hard_match_len = p - filter - 1;
5078 if (!strncmp (switches[i].part1, filter, hard_match_len)
5079 && check_live_switch (i, hard_match_len))
5086 /* Otherwise, check for presence of exact name specified. */
5089 for (i = 0; i < n_switches; i++)
5091 if (!strncmp (switches[i].part1, filter, p - filter)
5092 && switches[i].part1[p - filter] == 0
5093 && check_live_switch (i, -1))
5101 /* If it is as desired (present for %{s...}, absent for %{!s...})
5102 then substitute either the switch or the specified
5103 conditional text. */
5104 if (present != negate)
5108 switches[i].live_cond = SWITCH_IGNORE;
5109 switches[i].validated = 1;
5111 else if (ordered || *p == '&')
5112 ordered = 1, switches[i].ordering = 1;
5114 give_switch (i, 0, include_blanks);
5116 /* Even if many alternatives are matched, only output once. */
5121 /* Here if a %{|...} conditional fails: output a minus sign,
5122 which means "standard output" or "standard input". */
5123 do_spec_1 ("-", 0, NULL_PTR);
5128 /* We didn't match; try again. */
5135 goto next_ampersand;
5141 /* Doing this set of switches later preserves their command-line
5142 ordering. This is needed for e.g. -U, -D and -A. */
5143 for (i = 0; i < n_switches; i++)
5144 if (switches[i].ordering == 1)
5146 switches[i].ordering = 0;
5147 give_switch (i, 0, include_blanks);
5150 /* Process the spec just once, regardless of match count. */
5153 if (do_spec_1 (save_string (body, endbody - body - 1),
5161 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5162 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5163 spec, or -1 if either exact match or %* is used.
5165 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5166 whose value does not begin with "no-" is obsoleted by the same value
5167 with the "no-", similarly for a switch with the "no-" prefix. */
5170 check_live_switch (switchnum, prefix_length)
5174 const char *name = switches[switchnum].part1;
5177 /* In the common case of {<at-most-one-letter>*}, a negating
5178 switch would always match, so ignore that case. We will just
5179 send the conflicting switches to the compiler phase. */
5180 if (prefix_length >= 0 && prefix_length <= 1)
5183 /* If we already processed this switch and determined if it was
5184 live or not, return our past determination. */
5185 if (switches[switchnum].live_cond != 0)
5186 return switches[switchnum].live_cond > 0;
5188 /* Now search for duplicate in a manner that depends on the name. */
5192 for (i = switchnum + 1; i < n_switches; i++)
5193 if (switches[i].part1[0] == 'O')
5195 switches[switchnum].validated = 1;
5196 switches[switchnum].live_cond = SWITCH_FALSE;
5201 case 'W': case 'f': case 'm':
5202 if (! strncmp (name + 1, "no-", 3))
5204 /* We have Xno-YYY, search for XYYY. */
5205 for (i = switchnum + 1; i < n_switches; i++)
5206 if (switches[i].part1[0] == name[0]
5207 && ! strcmp (&switches[i].part1[1], &name[4]))
5209 switches[switchnum].validated = 1;
5210 switches[switchnum].live_cond = SWITCH_FALSE;
5216 /* We have XYYY, search for Xno-YYY. */
5217 for (i = switchnum + 1; i < n_switches; i++)
5218 if (switches[i].part1[0] == name[0]
5219 && switches[i].part1[1] == 'n'
5220 && switches[i].part1[2] == 'o'
5221 && switches[i].part1[3] == '-'
5222 && !strcmp (&switches[i].part1[4], &name[1]))
5224 switches[switchnum].validated = 1;
5225 switches[switchnum].live_cond = SWITCH_FALSE;
5232 /* Otherwise the switch is live. */
5233 switches[switchnum].live_cond = SWITCH_LIVE;
5237 /* Pass a switch to the current accumulating command
5238 in the same form that we received it.
5239 SWITCHNUM identifies the switch; it is an index into
5240 the vector of switches gcc received, which is `switches'.
5241 This cannot fail since it never finishes a command line.
5243 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5245 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5249 give_switch (switchnum, omit_first_word, include_blanks)
5251 int omit_first_word;
5254 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5257 if (!omit_first_word)
5259 do_spec_1 ("-", 0, NULL_PTR);
5260 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5263 if (switches[switchnum].args != 0)
5266 for (p = switches[switchnum].args; *p; p++)
5268 const char *arg = *p;
5271 do_spec_1 (" ", 0, NULL_PTR);
5274 unsigned length = strlen (arg);
5276 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5277 if (arg[length] == '.')
5279 ((char *)arg)[length] = 0;
5282 do_spec_1 (arg, 1, NULL_PTR);
5285 ((char *)arg)[length] = '.';
5286 do_spec_1 (suffix_subst, 1, NULL_PTR);
5290 do_spec_1 (arg, 1, NULL_PTR);
5294 do_spec_1 (" ", 0, NULL_PTR);
5295 switches[switchnum].validated = 1;
5298 /* Search for a file named NAME trying various prefixes including the
5299 user's -B prefix and some standard ones.
5300 Return the absolute file name found. If nothing is found, return NAME. */
5308 /* Try multilib_dir if it is defined. */
5309 if (multilib_dir != NULL)
5313 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5314 strcpy (try, multilib_dir);
5315 strcat (try, dir_separator_str);
5318 newname = find_a_file (&startfile_prefixes, try, R_OK);
5320 /* If we don't find it in the multi library dir, then fall
5321 through and look for it in the normal places. */
5322 if (newname != NULL)
5326 newname = find_a_file (&startfile_prefixes, name, R_OK);
5327 return newname ? newname : name;
5330 /* Determine whether a directory exists. If LINKER, return 0 for
5331 certain fixed names not needed by the linker. If not LINKER, it is
5332 only important to return 0 if the host machine has a small ARG_MAX
5336 is_directory (path1, path2, linker)
5341 int len1 = strlen (path1);
5342 int len2 = strlen (path2);
5343 char *path = (char *) alloca (3 + len1 + len2);
5347 #ifndef SMALL_ARG_MAX
5352 /* Construct the path from the two parts. Ensure the string ends with "/.".
5353 The resulting path will be a directory even if the given path is a
5355 memcpy (path, path1, len1);
5356 memcpy (path + len1, path2, len2);
5357 cp = path + len1 + len2;
5358 if (!IS_DIR_SEPARATOR (cp[-1]))
5359 *cp++ = DIR_SEPARATOR;
5363 /* Exclude directories that the linker is known to search. */
5366 && strcmp (path, concat (dir_separator_str, "lib",
5367 dir_separator_str, ".", NULL_PTR)) == 0)
5369 && strcmp (path, concat (dir_separator_str, "usr",
5370 dir_separator_str, "lib",
5371 dir_separator_str, ".", NULL_PTR)) == 0)))
5374 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5377 /* Set up the various global variables to indicate that we're processing
5378 the input file named FILENAME. */
5381 set_input (filename)
5382 const char *filename;
5384 register const char *p;
5386 input_filename = filename;
5387 input_filename_length = strlen (input_filename);
5389 input_basename = input_filename;
5390 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5391 /* Skip drive name so 'x:foo' is handled properly. */
5392 if (input_basename[1] == ':')
5393 input_basename += 2;
5395 for (p = input_basename; *p; p++)
5396 if (IS_DIR_SEPARATOR (*p))
5397 input_basename = p + 1;
5399 /* Find a suffix starting with the last period,
5400 and set basename_length to exclude that suffix. */
5401 basename_length = strlen (input_basename);
5402 suffixed_basename_length = basename_length;
5403 p = input_basename + basename_length;
5404 while (p != input_basename && *p != '.')
5406 if (*p == '.' && p != input_basename)
5408 basename_length = p - input_basename;
5409 input_suffix = p + 1;
5415 /* On fatal signals, delete all the temporary files. */
5418 fatal_error (signum)
5421 signal (signum, SIG_DFL);
5422 delete_failure_queue ();
5423 delete_temp_files ();
5424 /* Get the same signal again, this time not handled,
5425 so its normal effect occurs. */
5426 kill (getpid (), signum);
5429 extern int main PARAMS ((int, const char *const *));
5434 const char *const *argv;
5438 int linker_was_run = 0;
5439 char *explicit_link_files;
5442 struct user_specs *uptr;
5444 p = argv[0] + strlen (argv[0]);
5445 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5449 xmalloc_set_program_name (programname);
5451 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5452 /* Perform host dependant initialization when needed. */
5453 GCC_DRIVER_HOST_INITIALIZATION;
5456 /* LC_CTYPE determines the character set used by the terminal so it has be set
5457 to output messages correctly. */
5459 #ifdef HAVE_LC_MESSAGES
5460 setlocale (LC_CTYPE, "");
5461 setlocale (LC_MESSAGES, "");
5463 setlocale (LC_ALL, "");
5466 (void) bindtextdomain (PACKAGE, localedir);
5467 (void) textdomain (PACKAGE);
5469 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5470 signal (SIGINT, fatal_error);
5472 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5473 signal (SIGHUP, fatal_error);
5475 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5476 signal (SIGTERM, fatal_error);
5478 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5479 signal (SIGPIPE, fatal_error);
5483 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5485 obstack_init (&obstack);
5487 /* Build multilib_select, et. al from the separate lines that make up each
5488 multilib selection. */
5490 const char *const *q = multilib_raw;
5493 obstack_init (&multilib_obstack);
5494 while ((p = *q++) != (char *) 0)
5495 obstack_grow (&multilib_obstack, p, strlen (p));
5497 obstack_1grow (&multilib_obstack, 0);
5498 multilib_select = obstack_finish (&multilib_obstack);
5500 q = multilib_matches_raw;
5501 while ((p = *q++) != (char *) 0)
5502 obstack_grow (&multilib_obstack, p, strlen (p));
5504 obstack_1grow (&multilib_obstack, 0);
5505 multilib_matches = obstack_finish (&multilib_obstack);
5507 q = multilib_exclusions_raw;
5508 while ((p = *q++) != (char *) 0)
5509 obstack_grow (&multilib_obstack, p, strlen (p));
5511 obstack_1grow (&multilib_obstack, 0);
5512 multilib_exclusions = obstack_finish (&multilib_obstack);
5515 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5518 obstack_1grow (&multilib_obstack, ' ');
5519 obstack_grow (&multilib_obstack,
5520 multilib_defaults_raw[i],
5521 strlen (multilib_defaults_raw[i]));
5525 obstack_1grow (&multilib_obstack, 0);
5526 multilib_defaults = obstack_finish (&multilib_obstack);
5529 /* Set up to remember the pathname of gcc and any options
5530 needed for collect. We use argv[0] instead of programname because
5531 we need the complete pathname. */
5532 obstack_init (&collect_obstack);
5533 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5534 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5535 putenv (obstack_finish (&collect_obstack));
5537 #ifdef INIT_ENVIRONMENT
5538 /* Set up any other necessary machine specific environment variables. */
5539 putenv (INIT_ENVIRONMENT);
5542 /* Make a table of what switches there are (switches, n_switches).
5543 Make a table of specified input files (infiles, n_infiles).
5544 Decode switches that are handled locally. */
5546 process_command (argc, argv);
5551 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5553 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5554 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5557 for (i = 0; (int) i < n_switches; i++)
5559 const char *const *args;
5562 obstack_grow (&collect_obstack, " ", 1);
5565 obstack_grow (&collect_obstack, "'-", 2);
5566 q = switches[i].part1;
5567 while ((p = strchr (q, '\'')))
5569 obstack_grow (&collect_obstack, q, p - q);
5570 obstack_grow (&collect_obstack, "'\\''", 4);
5573 obstack_grow (&collect_obstack, q, strlen (q));
5574 obstack_grow (&collect_obstack, "'", 1);
5576 for (args = switches[i].args; args && *args; args++)
5578 obstack_grow (&collect_obstack, " '", 2);
5580 while ((p = strchr (q, '\'')))
5582 obstack_grow (&collect_obstack, q, p - q);
5583 obstack_grow (&collect_obstack, "'\\''", 4);
5586 obstack_grow (&collect_obstack, q, strlen (q));
5587 obstack_grow (&collect_obstack, "'", 1);
5590 obstack_grow (&collect_obstack, "\0", 1);
5591 putenv (obstack_finish (&collect_obstack));
5594 /* Initialize the vector of specs to just the default.
5595 This means one element containing 0s, as a terminator. */
5597 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5598 memcpy ((char *) compilers, (char *) default_compilers,
5599 sizeof default_compilers);
5600 n_compilers = n_default_compilers;
5602 /* Read specs from a file if there is one. */
5604 machine_suffix = concat (spec_machine, dir_separator_str,
5605 spec_version, dir_separator_str, NULL_PTR);
5606 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5608 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5609 /* Read the specs file unless it is a default one. */
5610 if (specs_file != 0 && strcmp (specs_file, "specs"))
5611 read_specs (specs_file, TRUE);
5615 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5616 for any override of as, ld and libraries. */
5617 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5618 + strlen (just_machine_suffix)
5619 + sizeof ("specs"));
5621 strcpy (specs_file, standard_exec_prefix);
5622 strcat (specs_file, just_machine_suffix);
5623 strcat (specs_file, "specs");
5624 if (access (specs_file, R_OK) == 0)
5625 read_specs (specs_file, TRUE);
5627 /* If not cross-compiling, look for startfiles in the standard places. */
5628 if (*cross_compile == '0')
5630 if (*md_exec_prefix)
5632 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5633 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5634 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5635 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5638 if (*md_startfile_prefix)
5639 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5640 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5642 if (*md_startfile_prefix_1)
5643 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5644 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5646 /* If standard_startfile_prefix is relative, base it on
5647 standard_exec_prefix. This lets us move the installed tree
5648 as a unit. If GCC_EXEC_PREFIX is defined, base
5649 standard_startfile_prefix on that as well. */
5650 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5651 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5652 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5655 if (gcc_exec_prefix)
5656 add_prefix (&startfile_prefixes,
5657 concat (gcc_exec_prefix, machine_suffix,
5658 standard_startfile_prefix, NULL_PTR),
5659 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5660 add_prefix (&startfile_prefixes,
5661 concat (standard_exec_prefix,
5663 standard_startfile_prefix, NULL_PTR),
5664 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5667 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5668 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5669 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5670 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5671 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5672 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5673 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5678 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5680 add_prefix (&startfile_prefixes,
5681 concat (gcc_exec_prefix, machine_suffix,
5682 standard_startfile_prefix, NULL_PTR),
5683 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5686 /* Process any user specified specs in the order given on the command
5688 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5690 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5691 read_specs (filename ? filename : uptr->filename, FALSE);
5694 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5695 if (gcc_exec_prefix)
5697 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5698 + strlen (spec_version)
5699 + strlen (spec_machine) + 3);
5700 strcpy (temp, gcc_exec_prefix);
5701 strcat (temp, spec_machine);
5702 strcat (temp, dir_separator_str);
5703 strcat (temp, spec_version);
5704 strcat (temp, dir_separator_str);
5705 gcc_exec_prefix = temp;
5708 /* Now we have the specs.
5709 Set the `valid' bits for switches that match anything in any spec. */
5711 validate_all_switches ();
5713 /* Now that we have the switches and the specs, set
5714 the subdirectory based on the options. */
5715 set_multilib_dir ();
5717 /* Warn about any switches that no pass was interested in. */
5719 for (i = 0; (int) i < n_switches; i++)
5720 if (! switches[i].validated)
5721 error ("unrecognized option `-%s'", switches[i].part1);
5723 /* Obey some of the options. */
5725 if (print_search_dirs)
5727 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5728 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5729 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5733 if (print_file_name)
5735 printf ("%s\n", find_file (print_file_name));
5739 if (print_prog_name)
5741 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5742 printf ("%s\n", (newname ? newname : print_prog_name));
5746 if (print_multi_lib)
5748 print_multilib_info ();
5752 if (print_multi_directory)
5754 if (multilib_dir == NULL)
5757 printf ("%s\n", multilib_dir);
5761 if (target_help_flag)
5763 /* Print if any target specific options.*/
5765 /* We do not exit here. Instead we have created a fake input file
5766 called 'target-dummy' which needs to be compiled, and we pass this
5767 on to the various sub-processes, along with the --target-help
5771 if (print_help_list)
5777 printf (_("\nFor bug reporting instructions, please see:\n"));
5778 printf ("%s.\n", GCCBUGURL);
5783 /* We do not exit here. Instead we have created a fake input file
5784 called 'help-dummy' which needs to be compiled, and we pass this
5785 on the the various sub-processes, along with the --help switch. */
5792 notice ("Configured with: %s\n", configuration_arguments);
5794 /* compiler_version is truncated at the first space when initialized
5795 from version string, so truncate version_string at the first space
5796 before comparing. */
5797 for (n = 0; version_string[n]; n++)
5798 if (version_string[n] == ' ')
5801 if (! strncmp (version_string, compiler_version, n)
5802 && compiler_version[n] == 0)
5803 notice ("gcc version %s\n", version_string);
5805 notice ("gcc driver version %s executing gcc version %s\n",
5806 version_string, compiler_version);
5812 if (n_infiles == added_libraries)
5813 fatal ("No input files");
5815 /* Make a place to record the compiler output file names
5816 that correspond to the input files. */
5819 i += lang_specific_extra_outfiles;
5820 outfiles = (const char **) xcalloc (i, sizeof (char *));
5822 /* Record which files were specified explicitly as link input. */
5824 explicit_link_files = xcalloc (1, n_infiles);
5826 for (i = 0; (int) i < n_infiles; i++)
5828 int this_file_error = 0;
5830 /* Tell do_spec what to substitute for %i. */
5832 input_file_number = i;
5833 set_input (infiles[i].name);
5835 /* Use the same thing in %o, unless cp->spec says otherwise. */
5837 outfiles[i] = input_filename;
5839 /* Figure out which compiler from the file's suffix. */
5842 = lookup_compiler (infiles[i].name, input_filename_length,
5843 infiles[i].language);
5845 if (input_file_compiler)
5847 /* Ok, we found an applicable compiler. Run its spec. */
5849 if (input_file_compiler->spec[0] == '#')
5850 error ("%s: %s compiler not installed on this system",
5851 input_filename, &input_file_compiler->spec[1]);
5852 value = do_spec (input_file_compiler->spec);
5854 this_file_error = 1;
5857 /* If this file's name does not contain a recognized suffix,
5858 record it as explicit linker input. */
5861 explicit_link_files[i] = 1;
5863 /* Clear the delete-on-failure queue, deleting the files in it
5864 if this compilation failed. */
5866 if (this_file_error)
5868 delete_failure_queue ();
5871 /* If this compilation succeeded, don't delete those files later. */
5872 clear_failure_queue ();
5875 /* Reset the output file name to the first input file name, for use
5876 with %b in LINK_SPEC on a target that prefers not to emit a.out
5879 set_input (infiles[0].name);
5881 if (error_count == 0)
5883 /* Make sure INPUT_FILE_NUMBER points to first available open
5885 input_file_number = n_infiles;
5886 if (lang_specific_pre_link ())
5890 /* Run ld to link all the compiler output files. */
5892 if (error_count == 0)
5894 int tmp = execution_count;
5896 /* We'll use ld if we can't find collect2. */
5897 if (! strcmp (linker_name_spec, "collect2"))
5899 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5901 linker_name_spec = "ld";
5903 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5905 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5906 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5908 value = do_spec (link_command_spec);
5911 linker_was_run = (tmp != execution_count);
5914 /* If options said don't run linker,
5915 complain about input files to be given to the linker. */
5917 if (! linker_was_run && error_count == 0)
5918 for (i = 0; (int) i < n_infiles; i++)
5919 if (explicit_link_files[i])
5920 error ("%s: linker input file unused because linking not done",
5923 /* Delete some or all of the temporary files we made. */
5926 delete_failure_queue ();
5927 delete_temp_files ();
5929 if (print_help_list)
5931 printf (("\nFor bug reporting instructions, please see:\n"));
5932 printf ("%s\n", GCCBUGURL);
5935 return (signal_count != 0 ? 2
5936 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5940 /* Find the proper compilation spec for the file name NAME,
5941 whose length is LENGTH. LANGUAGE is the specified language,
5942 or 0 if this file is to be passed to the linker. */
5944 static struct compiler *
5945 lookup_compiler (name, length, language)
5948 const char *language;
5950 struct compiler *cp;
5952 /* If this was specified by the user to be a linker input, indicate that. */
5953 if (language != 0 && language[0] == '*')
5956 /* Otherwise, look for the language, if one is spec'd. */
5959 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5960 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5963 error ("language %s not recognized", language);
5967 /* Look for a suffix. */
5968 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5970 if (/* The suffix `-' matches only the file name `-'. */
5971 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5972 || (strlen (cp->suffix) < length
5973 /* See if the suffix matches the end of NAME. */
5974 && !strcmp (cp->suffix,
5975 name + length - strlen (cp->suffix))
5980 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5981 /* look again, but case-insensitively this time. */
5983 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5985 if (/* The suffix `-' matches only the file name `-'. */
5986 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5987 || (strlen (cp->suffix) < length
5988 /* See if the suffix matches the end of NAME. */
5989 && ((!strcmp (cp->suffix,
5990 name + length - strlen (cp->suffix))
5991 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5992 && !strcasecmp (cp->suffix,
5993 name + length - strlen (cp->suffix)))
5999 if (cp >= compilers)
6001 if (cp->spec[0] != '@')
6002 /* A non-alias entry: return it. */
6005 /* An alias entry maps a suffix to a language.
6006 Search for the language; pass 0 for NAME and LENGTH
6007 to avoid infinite recursion if language not found. */
6008 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
6014 save_string (s, len)
6018 register char *result = xmalloc (len + 1);
6020 memcpy (result, s, len);
6026 pfatal_with_name (name)
6029 perror_with_name (name);
6030 delete_temp_files ();
6035 perror_with_name (name)
6038 error ("%s: %s", name, xstrerror (errno));
6042 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6043 const char *errmsg_fmt;
6044 const char *errmsg_arg;
6048 int save_errno = errno;
6050 /* Space for trailing '\0' is in %s. */
6051 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6052 sprintf (msg, errmsg_fmt, errmsg_arg);
6058 pfatal_with_name (errmsg_fmt);
6061 /* Output an error message and exit */
6066 fatal ("Internal gcc abort.");
6069 /* Output an error message and exit */
6072 fatal VPARAMS ((const char *msgid, ...))
6074 #ifndef ANSI_PROTOTYPES
6079 VA_START (ap, msgid);
6081 #ifndef ANSI_PROTOTYPES
6082 msgid = va_arg (ap, const char *);
6085 fprintf (stderr, "%s: ", programname);
6086 vfprintf (stderr, _(msgid), ap);
6088 fprintf (stderr, "\n");
6089 delete_temp_files ();
6094 error VPARAMS ((const char *msgid, ...))
6096 #ifndef ANSI_PROTOTYPES
6101 VA_START (ap, msgid);
6103 #ifndef ANSI_PROTOTYPES
6104 msgid = va_arg (ap, const char *);
6107 fprintf (stderr, "%s: ", programname);
6108 vfprintf (stderr, _(msgid), ap);
6111 fprintf (stderr, "\n");
6115 notice VPARAMS ((const char *msgid, ...))
6117 #ifndef ANSI_PROTOTYPES
6122 VA_START (ap, msgid);
6124 #ifndef ANSI_PROTOTYPES
6125 msgid = va_arg (ap, const char *);
6128 vfprintf (stderr, _(msgid), ap);
6133 validate_all_switches ()
6135 struct compiler *comp;
6136 register const char *p;
6138 struct spec_list *spec;
6140 for (comp = compilers; comp->spec; comp++)
6144 if (c == '%' && *p == '{')
6145 /* We have a switch spec. */
6146 validate_switches (p + 1);
6149 /* Look through the linked list of specs read from the specs file. */
6150 for (spec = specs; spec; spec = spec->next)
6152 p = *(spec->ptr_spec);
6154 if (c == '%' && *p == '{')
6155 /* We have a switch spec. */
6156 validate_switches (p + 1);
6159 p = link_command_spec;
6161 if (c == '%' && *p == '{')
6162 /* We have a switch spec. */
6163 validate_switches (p + 1);
6166 /* Look at the switch-name that comes after START
6167 and mark as valid all supplied switches that match it. */
6170 validate_switches (start)
6173 register const char *p = start;
6190 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6195 else if (p[-1] == '*')
6197 /* Mark all matching switches as valid. */
6198 for (i = 0; i < n_switches; i++)
6199 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6200 switches[i].validated = 1;
6204 /* Mark an exact matching switch as valid. */
6205 for (i = 0; i < n_switches; i++)
6207 if (!strncmp (switches[i].part1, filter, p - filter)
6208 && switches[i].part1[p - filter] == 0)
6209 switches[i].validated = 1;
6213 if (*p++ == '|' || p[-1] == '&')
6217 /* Check whether a particular argument was used. The first time we
6218 canonicalize the switches to keep only the ones we care about. */
6228 const char *replace;
6233 static struct mswitchstr *mswitches;
6234 static int n_mswitches;
6239 struct mswitchstr *matches;
6243 /* Break multilib_matches into the component strings of string
6244 and replacement string. */
6245 for (q = multilib_matches; *q != '\0'; q++)
6250 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6252 q = multilib_matches;
6262 matches[i].len = q - matches[i].str;
6264 matches[i].replace = ++q;
6265 while (*q != ';' && *q != '\0')
6271 matches[i].rep_len = q - matches[i].replace;
6277 /* Now build a list of the replacement string for switches that we care
6278 about. Make sure we allocate at least one entry. This prevents
6279 xmalloc from calling fatal, and prevents us from re-executing this
6282 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6283 * (n_switches ? n_switches : 1));
6284 for (i = 0; i < n_switches; i++)
6286 int xlen = strlen (switches[i].part1);
6287 for (j = 0; j < cnt; j++)
6288 if (xlen == matches[j].len
6289 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6291 mswitches[n_mswitches].str = matches[j].replace;
6292 mswitches[n_mswitches].len = matches[j].rep_len;
6293 mswitches[n_mswitches].replace = (char *) 0;
6294 mswitches[n_mswitches].rep_len = 0;
6301 for (i = 0; i < n_mswitches; i++)
6302 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6309 default_arg (p, len)
6313 const char *start, *end;
6315 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6317 while (*start == ' ' || *start == '\t')
6323 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6326 if ((end - start) == len && strncmp (p, start, len) == 0)
6336 /* Work out the subdirectory to use based on the options. The format of
6337 multilib_select is a list of elements. Each element is a subdirectory
6338 name followed by a list of options followed by a semicolon. The format
6339 of multilib_exclusions is the same, but without the preceding
6340 directory. First gcc will check the exclusions, if none of the options
6341 beginning with an exclamation point are present, and all of the other
6342 options are present, then we will ignore this completely. Passing
6343 that, gcc will consider each multilib_select in turn using the same
6344 rules for matching the options. If a match is found, that subdirectory
6351 unsigned int this_path_len;
6352 const char *this_path, *this_arg;
6356 p = multilib_exclusions;
6359 /* Ignore newlines. */
6366 /* Check the arguments. */
6380 while (*p != ' ' && *p != ';')
6387 if (*this_arg != '!')
6395 ok = used_arg (this_arg, p - this_arg);
6409 p = multilib_select;
6412 /* Ignore newlines. */
6419 /* Get the initial path. */
6427 this_path_len = p - this_path;
6429 /* Check the arguments. */
6444 while (*p != ' ' && *p != ';')
6451 if (*this_arg != '!')
6459 /* If this is a default argument, we can just ignore it.
6460 This is true even if this_arg begins with '!'. Beginning
6461 with '!' does not mean that this argument is necessarily
6462 inappropriate for this library: it merely means that
6463 there is a more specific library which uses this
6464 argument. If this argument is a default, we need not
6465 consider that more specific library. */
6466 if (! default_arg (this_arg, p - this_arg))
6468 ok = used_arg (this_arg, p - this_arg);
6479 if (this_path_len != 1
6480 || this_path[0] != '.')
6482 char *new_multilib_dir = xmalloc (this_path_len + 1);
6483 strncpy (new_multilib_dir, this_path, this_path_len);
6484 new_multilib_dir[this_path_len] = '\0';
6485 multilib_dir = new_multilib_dir;
6494 /* Print out the multiple library subdirectory selection
6495 information. This prints out a series of lines. Each line looks
6496 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6497 required. Only the desired options are printed out, the negative
6498 matches. The options are print without a leading dash. There are
6499 no spaces to make it easy to use the information in the shell.
6500 Each subdirectory is printed only once. This assumes the ordering
6501 generated by the genmultilib script. Also, we leave out ones that match
6505 print_multilib_info ()
6507 const char *p = multilib_select;
6508 const char *last_path = 0, *this_path;
6510 unsigned int last_path_len = 0;
6515 /* Ignore newlines. */
6522 /* Get the initial path. */
6531 /* Check for matches with the multilib_exclusions. We don't bother
6532 with the '!' in either list. If any of the exclusion rules match
6533 all of its options with the select rule, we skip it. */
6535 const char *e = multilib_exclusions;
6536 const char *this_arg;
6541 /* Ignore newlines. */
6548 /* Check the arguments. */
6565 while (*e != ' ' && *e != ';')
6576 int len = e - this_arg;
6583 while (*q != ' ' && *q != ';')
6590 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6591 default_arg (this_arg, e - this_arg))
6621 /* If this is a duplicate, skip it. */
6622 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6623 && ! strncmp (last_path, this_path, last_path_len));
6625 last_path = this_path;
6626 last_path_len = p - this_path;
6629 /* If this directory requires any default arguments, we can skip
6630 it. We will already have printed a directory identical to
6631 this one which does not require that default argument. */
6649 while (*q != ' ' && *q != ';')
6657 && default_arg (arg, q - arg))
6672 for (p1 = last_path; p1 < p; p1++)
6691 use_arg = *p != '!';
6696 while (*p != ' ' && *p != ';')
6711 /* If there are extra options, print them now. */
6712 if (multilib_extra && *multilib_extra)
6714 int print_at = TRUE;
6717 for (q = multilib_extra; *q != '\0'; q++)