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". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #define exit __posix_exit
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage PARAMS ((int, struct rusage *));
95 /* By default there is no special suffix for executables. */
96 #ifdef EXECUTABLE_SUFFIX
97 #define HAVE_EXECUTABLE_SUFFIX
99 #define EXECUTABLE_SUFFIX ""
102 /* By default, the suffix for object files is ".o". */
104 #define HAVE_OBJECT_SUFFIX
106 #define OBJECT_SUFFIX ".o"
110 /* FIXME: the location independence code for VMS is hairier than this,
111 and hasn't been written. */
117 static char dir_separator_str[] = { DIR_SEPARATOR, 0 };
119 #define obstack_chunk_alloc xmalloc
120 #define obstack_chunk_free free
122 #ifndef GET_ENV_PATH_LIST
123 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
126 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
127 #ifndef LIBRARY_PATH_ENV
128 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
132 #define kill(p,s) raise(s)
135 /* If a stage of compilation returns an exit status >= 1,
136 compilation of that file ceases. */
138 #define MIN_FATAL_STATUS 1
140 /* Flag saying to pass the greatest exit code returned by a sub-process
141 to the calling program. */
142 static int pass_exit_codes;
144 /* Definition of string containing the arguments given to configure. */
145 #include "configargs.h"
147 /* Flag saying to print the directories gcc will search through looking for
148 programs, libraries, etc. */
150 static int print_search_dirs;
152 /* Flag saying to print the full filename of this file
153 as found through our usual search mechanism. */
155 static const char *print_file_name = NULL;
157 /* As print_file_name, but search for executable file. */
159 static const char *print_prog_name = NULL;
161 /* Flag saying to print the relative path we'd use to
162 find libgcc.a given the current compiler flags. */
164 static int print_multi_directory;
166 /* Flag saying to print the list of subdirectories and
167 compiler flags used to select them in a standard form. */
169 static int print_multi_lib;
171 /* Flag saying to print the command line options understood by gcc and its
174 static int print_help_list;
176 /* Flag indicating whether we should print the command and arguments */
178 static int verbose_flag;
180 /* Flag indicating to print target specific command line options. */
182 static int target_help_flag;
184 /* Flag indicating whether we should report subprocess execution times
185 (if this is supported by the system - see pexecute.c). */
187 static int report_times;
189 /* Nonzero means write "temp" files in source directory
190 and use the source file's name in them, and don't delete them. */
192 static int save_temps_flag;
194 /* The compiler version. */
196 static const char *compiler_version;
198 /* The target version specified with -V */
200 static const char *spec_version = DEFAULT_TARGET_VERSION;
202 /* The target machine specified with -b. */
204 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
206 /* Nonzero if cross-compiling.
207 When -b is used, the value comes from the `specs' file. */
210 static const char *cross_compile = "1";
212 static const char *cross_compile = "0";
215 #ifdef MODIFY_TARGET_NAME
217 /* Information on how to alter the target name based on a command-line
218 switch. The only case we support now is simply appending or deleting a
219 string to or from the end of the first part of the configuration name. */
224 enum add_del {ADD, DELETE} add_del;
227 modify_target[] = MODIFY_TARGET_NAME;
230 /* The number of errors that have occurred; the link phase will not be
231 run if this is non-zero. */
232 static int error_count = 0;
234 /* Greatest exit code of sub-processes that has been encountered up to
236 static int greatest_status = 1;
238 /* This is the obstack which we use to allocate many strings. */
240 static struct obstack obstack;
242 /* This is the obstack to build an environment variable to pass to
243 collect2 that describes all of the relevant switches of what to
244 pass the compiler in building the list of pointers to constructors
247 static struct obstack collect_obstack;
249 /* These structs are used to collect resource usage information for
251 #ifdef HAVE_GETRUSAGE
252 static struct rusage rus, prus;
255 /* Forward declaration for prototypes. */
258 static void init_spec PARAMS ((void));
260 static char **split_directories PARAMS ((const char *, int *));
261 static void free_split_directories PARAMS ((char **));
262 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
264 static void store_arg PARAMS ((const char *, int, int));
265 static char *load_specs PARAMS ((const char *));
266 static void read_specs PARAMS ((const char *, int));
267 static void set_spec PARAMS ((const char *, const char *));
268 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
269 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
270 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
271 static int access_check PARAMS ((const char *, int));
272 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
273 static void add_prefix PARAMS ((struct path_prefix *, const char *,
274 const char *, int, int, int *));
275 static void translate_options PARAMS ((int *, const char *const **));
276 static char *skip_whitespace PARAMS ((char *));
277 static void delete_if_ordinary PARAMS ((const char *));
278 static void delete_temp_files PARAMS ((void));
279 static void delete_failure_queue PARAMS ((void));
280 static void clear_failure_queue PARAMS ((void));
281 static int check_live_switch PARAMS ((int, int));
282 static const char *handle_braces PARAMS ((const char *));
283 static char *save_string PARAMS ((const char *, int));
284 static int do_spec_1 PARAMS ((const char *, int, const char *));
285 static const char *find_file PARAMS ((const char *));
286 static int is_directory PARAMS ((const char *, const char *, int));
287 static void validate_switches PARAMS ((const char *));
288 static void validate_all_switches PARAMS ((void));
289 static void give_switch PARAMS ((int, int, int));
290 static int used_arg PARAMS ((const char *, int));
291 static int default_arg PARAMS ((const char *, int));
292 static void set_multilib_dir PARAMS ((void));
293 static void print_multilib_info PARAMS ((void));
294 static void perror_with_name PARAMS ((const char *));
295 static void pfatal_pexecute PARAMS ((const char *, const char *))
297 static void notice PARAMS ((const char *, ...))
299 static void display_help PARAMS ((void));
300 static void add_preprocessor_option PARAMS ((const char *, int));
301 static void add_assembler_option PARAMS ((const char *, int));
302 static void add_linker_option PARAMS ((const char *, int));
303 static void process_command PARAMS ((int, const char *const *));
304 static int execute PARAMS ((void));
305 static void clear_args PARAMS ((void));
306 static void fatal_error PARAMS ((int));
307 static void set_input PARAMS ((const char *));
308 static void init_gcc_specs PARAMS ((struct obstack *,
312 /* The Specs Language
314 Specs are strings containing lines, each of which (if not blank)
315 is made up of a program name, and arguments separated by spaces.
316 The program name must be exact and start from root, since no path
317 is searched and it is unreliable to depend on the current working directory.
318 Redirection of input or output is not supported; the subprograms must
319 accept filenames saying what files to read and write.
321 In addition, the specs can contain %-sequences to substitute variable text
322 or for conditional text. Here is a table of all defined %-sequences.
323 Note that spaces are not generated automatically around the results of
324 expanding these sequences; therefore, you can concatenate them together
325 or with constant text in a single argument.
327 %% substitute one % into the program name or argument.
328 %i substitute the name of the input file being processed.
329 %b substitute the basename of the input file being processed.
330 This is the substring up to (and not including) the last period
331 and not including the directory.
332 %B same as %b, but include the file suffix (text after the last period).
334 substitute a file name that has suffix SUFFIX and is chosen
335 once per compilation, and mark the argument a la %d. To reduce
336 exposure to denial-of-service attacks, the file name is now
337 chosen in a way that is hard to predict even when previously
338 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
339 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
340 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
341 had been pre-processed. Previously, %g was simply substituted
342 with a file name chosen once per compilation, without regard
343 to any appended suffix (which was therefore treated just like
344 ordinary text), making such attacks more likely to succeed.
346 like %g, but generates a new temporary file name even if %uSUFFIX
349 substitutes the last file name generated with %uSUFFIX, generating a
350 new one if there is no such last file name. In the absence of any
351 %uSUFFIX, this is just like %gSUFFIX, except they don't share
352 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
353 would involve the generation of two distinct file names, one
354 for each `%g.s' and another for each `%U.s'. Previously, %U was
355 simply substituted with a file name chosen for the previous %u,
356 without regard to any appended suffix.
358 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
359 writable, and if save-temps is off; otherwise, substitute the name
360 of a temporary file, just like %u. This temporary file is not
361 meant for communication between processes, but rather as a junk
364 substitutes .SUFFIX for the suffixes of a matched switch's args when
365 it is subsequently output with %*. SUFFIX is terminated by the next
367 %d marks the argument containing or following the %d as a
368 temporary file name, so that that file will be deleted if CC exits
369 successfully. Unlike %g, this contributes no text to the argument.
370 %w marks the argument containing or following the %w as the
371 "output file" of this compilation. This puts the argument
372 into the sequence of arguments that %o will substitute later.
374 like %{...} but mark last argument supplied within
375 as a file to be deleted on failure.
376 %o substitutes the names of all the output files, with spaces
377 automatically placed around them. You should write spaces
378 around the %o as well or the results are undefined.
379 %o is for use in the specs for running the linker.
380 Input files whose names have no recognized suffix are not compiled
381 at all, but they are included among the output files, so they will
383 %O substitutes the suffix for object files. Note that this is
384 handled specially when it immediately follows %g, %u, or %U
385 (with or without a suffix argument) because of the need for
386 those to form complete file names. The handling is such that
387 %O is treated exactly as if it had already been substituted,
388 except that %g, %u, and %U do not currently support additional
389 SUFFIX characters following %O as they would following, for
391 %p substitutes the standard macro predefinitions for the
392 current target machine. Use this when running cpp.
393 %P like %p, but puts `__' before and after the name of each macro.
394 (Except macros that already have __.)
396 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
397 %s current argument is the name of a library or startup file of some sort.
398 Search for that file in a standard list of directories
399 and substitute the full name found.
400 %eSTR Print STR as an error message. STR is terminated by a newline.
401 Use this when inconsistent options are detected.
402 %nSTR Print STR as an notice. STR is terminated by a newline.
403 %x{OPTION} Accumulate an option for %X.
404 %X Output the accumulated linker options specified by compilations.
405 %Y Output the accumulated assembler options specified by compilations.
406 %Z Output the accumulated preprocessor options specified by compilations.
407 %v1 Substitute the major version number of GCC.
408 (For version 2.5.3, this is 2.)
409 %v2 Substitute the minor version number of GCC.
410 (For version 2.5.3, this is 5.)
411 %v3 Substitute the patch level number of GCC.
412 (For version 2.5.3, this is 3.)
413 %a process ASM_SPEC as a spec.
414 This allows config.h to specify part of the spec for running as.
415 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
416 used here. This can be used to run a post-processor after the
417 assembler has done its job.
418 %D Dump out a -L option for each directory in startfile_prefixes.
419 If multilib_dir is set, extra entries are generated with it affixed.
420 %l process LINK_SPEC as a spec.
421 %L process LIB_SPEC as a spec.
422 %G process LIBGCC_SPEC as a spec.
423 %M output multilib_dir with directory separators replaced with "_";
424 if multilib_dir is not set or is ".", output "".
425 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
426 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
427 %c process SIGNED_CHAR_SPEC as a spec.
428 %C process CPP_SPEC as a spec.
429 %1 process CC1_SPEC as a spec.
430 %2 process CC1PLUS_SPEC as a spec.
431 %| output "-" if the input for the current command is coming from a pipe.
432 %* substitute the variable part of a matched option. (See below.)
433 Note that each comma in the substituted string is replaced by
435 %{S} substitutes the -S switch, if that switch was given to CC.
436 If that switch was not specified, this substitutes nothing.
437 Here S is a metasyntactic variable.
438 %{S*} substitutes all the switches specified to CC whose names start
439 with -S. This is used for -o, -I, etc; switches that take
440 arguments. CC considers `-o foo' as being one switch whose
441 name starts with `o'. %{o*} would substitute this text,
442 including the space; thus, two arguments would be generated.
443 %{^S*} likewise, but don't put a blank between a switch and any args.
444 %{S*&T*} likewise, but preserve order of S and T options (the order
445 of S and T in the spec is not significant). Can be any number
446 of ampersand-separated variables; for each the wild card is
447 optional. Useful for CPP as %{D*&U*&A*}.
448 %{S*:X} substitutes X if one or more switches whose names start with -S are
449 specified to CC. Note that the tail part of the -S option
450 (i.e. the part matched by the `*') will be substituted for each
451 occurrence of %* within X.
452 %{<S} remove all occurences of -S from the command line.
453 Note - this option is position dependent. % commands in the
454 spec string before this option will see -S, % commands in the
455 spec string after this option will not.
456 %{S:X} substitutes X, but only if the -S switch was given to CC.
457 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
458 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
459 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
460 %{.S:X} substitutes X, but only if processing a file with suffix S.
461 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
462 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
463 combined with ! and . as above binding stronger than the OR.
464 %(Spec) processes a specification defined in a specs file as *Spec:
465 %[Spec] as above, but put __ around -D arguments
467 The conditional text X in a %{S:X} or %{!S:X} construct may contain
468 other nested % constructs or spaces, or even newlines. They are
469 processed as usual, as described above.
471 The -O, -f, -m, and -W switches are handled specifically in these
472 constructs. If another value of -O or the negated form of a -f, -m, or
473 -W switch is found later in the command line, the earlier switch
474 value is ignored, except with {S*} where S is just one letter; this
475 passes all matching options.
477 The character | at the beginning of the predicate text is used to indicate
478 that a command should be piped to the following command, but only if -pipe
481 Note that it is built into CC which switches take arguments and which
482 do not. You might think it would be useful to generalize this to
483 allow each compiler's spec to say which switches take arguments. But
484 this cannot be done in a consistent fashion. CC cannot even decide
485 which input files have been specified without knowing which switches
486 take arguments, and it must know which input files to compile in order
487 to tell which compilers to run.
489 CC also knows implicitly that arguments starting in `-l' are to be
490 treated as compiler output files, and passed to the linker in their
491 proper position among the other output files. */
493 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
495 /* config.h can define ASM_SPEC to provide extra args to the assembler
496 or extra switch-translations. */
501 /* config.h can define ASM_FINAL_SPEC to run a post processor after
502 the assembler has run. */
503 #ifndef ASM_FINAL_SPEC
504 #define ASM_FINAL_SPEC ""
507 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
508 or extra switch-translations. */
513 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
514 or extra switch-translations. */
519 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
520 or extra switch-translations. */
522 #define CC1PLUS_SPEC ""
525 /* config.h can define LINK_SPEC to provide extra args to the linker
526 or extra switch-translations. */
531 /* config.h can define LIB_SPEC to override the default libraries. */
533 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
536 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
539 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
540 /* Have gcc do the search for libgcc.a. */
541 #define LIBGCC_SPEC "libgcc.a%s"
543 #define LIBGCC_SPEC "-lgcc"
547 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
548 #ifndef STARTFILE_SPEC
549 #define STARTFILE_SPEC \
550 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
553 /* config.h can define SWITCHES_NEED_SPACES to control which options
554 require spaces between the option and the argument. */
555 #ifndef SWITCHES_NEED_SPACES
556 #define SWITCHES_NEED_SPACES ""
559 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
561 #define ENDFILE_SPEC ""
564 /* This spec is used for telling cpp whether char is signed or not. */
565 #ifndef SIGNED_CHAR_SPEC
566 /* Use #if rather than ?:
567 because MIPS C compiler rejects like ?: in initializers. */
568 #if DEFAULT_SIGNED_CHAR
569 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
571 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
576 #define LINKER_NAME "collect2"
579 /* Here is the spec for running the linker, after compiling all files. */
581 /* -u* was put back because both BSD and SysV seem to support it. */
582 /* %{static:} simply prevents an error message if the target machine
583 doesn't handle -static. */
584 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
585 scripts which exist in user specified directories, or in standard
587 #ifndef LINK_COMMAND_SPEC
588 #define LINK_COMMAND_SPEC "\
589 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
590 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
591 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
592 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
593 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
596 #ifndef LINK_LIBGCC_SPEC
597 # ifdef LINK_LIBGCC_SPECIAL
598 /* Don't generate -L options for startfile prefix list. */
599 # define LINK_LIBGCC_SPEC ""
601 /* Do generate them. */
602 # define LINK_LIBGCC_SPEC "%D"
606 static const char *cpp_spec = CPP_SPEC;
607 static const char *cpp_predefines = CPP_PREDEFINES;
608 static const char *cc1_spec = CC1_SPEC;
609 static const char *cc1plus_spec = CC1PLUS_SPEC;
610 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
611 static const char *asm_spec = ASM_SPEC;
612 static const char *asm_final_spec = ASM_FINAL_SPEC;
613 static const char *link_spec = LINK_SPEC;
614 static const char *lib_spec = LIB_SPEC;
615 static const char *libgcc_spec = LIBGCC_SPEC;
616 static const char *endfile_spec = ENDFILE_SPEC;
617 static const char *startfile_spec = STARTFILE_SPEC;
618 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
619 static const char *linker_name_spec = LINKER_NAME;
620 static const char *link_command_spec = LINK_COMMAND_SPEC;
621 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
623 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
624 There should be no need to override these in target dependent files,
625 but we need to copy them to the specs file so that newer versions
626 of the GCC driver can correctly drive older tool chains with the
627 appropriate -B options. */
629 static const char *trad_capable_cpp =
630 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
632 static const char *cpp_options =
633 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
634 %{std*} %{nostdinc*}\
635 %{C} %{v} %{I*} %{P} %{$} %I\
636 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
637 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
638 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
639 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
640 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
641 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
642 %{ffast-math:-D__FAST_MATH__}\
643 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
644 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
645 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
646 %{fshow-column} %{fno-show-column}\
647 %{fleading-underscore} %{fno-leading-underscore}\
648 %{fno-operator-names} %{ftabstop=*} %{remap}\
649 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
652 /* NB: This is shared amongst all front-ends. */
653 static const char *cc1_options =
654 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
655 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
656 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
657 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
658 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
659 %{--target-help:--target-help}\
660 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
661 %{fsyntax-only:-o %j} %{-param*}";
663 static const char *asm_options =
664 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
666 static const char *invoke_as =
667 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
669 /* Some compilers have limits on line lengths, and the multilib_select
670 and/or multilib_matches strings can be very long, so we build them at
672 static struct obstack multilib_obstack;
673 static const char *multilib_select;
674 static const char *multilib_matches;
675 static const char *multilib_defaults;
676 static const char *multilib_exclusions;
677 #include "multilib.h"
679 /* Check whether a particular argument is a default argument. */
681 #ifndef MULTILIB_DEFAULTS
682 #define MULTILIB_DEFAULTS { "" }
685 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
689 struct user_specs *next;
690 const char *filename;
693 static struct user_specs *user_specs_head, *user_specs_tail;
695 /* This defines which switch letters take arguments. */
697 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
698 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
699 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
700 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
701 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
702 || (CHAR) == 'B' || (CHAR) == 'b')
704 #ifndef SWITCH_TAKES_ARG
705 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
708 /* This defines which multi-letter switches take arguments. */
710 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
711 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
712 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
713 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
714 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
715 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
716 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
717 || !strcmp (STR, "specs") \
718 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
720 #ifndef WORD_SWITCH_TAKES_ARG
721 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
724 #ifdef HAVE_EXECUTABLE_SUFFIX
725 /* This defines which switches stop a full compilation. */
726 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
727 ((CHAR) == 'c' || (CHAR) == 'S')
729 #ifndef SWITCH_CURTAILS_COMPILATION
730 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
731 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
735 /* Record the mapping from file suffixes for compilation specs. */
739 const char *suffix; /* Use this compiler for input files
740 whose names end in this suffix. */
742 const char *spec; /* To use this compiler, run this spec. */
744 const char *cpp_spec; /* If non-NULL, substitute this spec
745 for `%C', rather than the usual
749 /* Pointer to a vector of `struct compiler' that gives the spec for
750 compiling a file, based on its suffix.
751 A file that does not end in any of these suffixes will be passed
752 unchanged to the loader and nothing else will be done to it.
754 An entry containing two 0s is used to terminate the vector.
756 If multiple entries match a file, the last matching one is used. */
758 static struct compiler *compilers;
760 /* Number of entries in `compilers', not counting the null terminator. */
762 static int n_compilers;
764 /* The default list of file name suffixes and their compilation specs. */
766 static struct compiler default_compilers[] =
768 /* Add lists of suffixes of known languages here. If those languages
769 were not present when we built the driver, we will hit these copies
770 and be given a more meaningful error than "file not used since
771 linking is not done". */
772 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
773 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
774 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
776 {".ads", "#Ada", 0}, {".adb", "#Ada", 0}, {".ada", "#Ada", 0},
777 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
778 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
779 {".r", "#Ratfor", 0},
780 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
781 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
782 {".java", "#Java", 0}, {".class", "#Java", 0},
783 {".zip", "#Java", 0}, {".jar", "#Java", 0},
784 /* Next come the entries for C. */
787 /* cc1 has an integrated ISO C preprocessor. We should invoke the
788 external preprocessor if -save-temps or -traditional is given. */
789 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
791 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
792 %(cpp_options) %b.i \n\
793 cc1 -fpreprocessed %b.i %(cc1_options)}\
795 %{traditional|ftraditional|traditional-cpp:\
796 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
797 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
798 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
799 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
800 %{!fsyntax-only:%(invoke_as)}}}}", 0},
802 "%{!E:%e-E required when input is from standard input}\
803 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
804 {".h", "@c-header", 0},
806 "%{!E:%eCompilation of header file requested} \
807 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
808 {".i", "@cpp-output", 0},
810 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
811 {".s", "@assembler", 0},
813 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}", 0},
814 {".S", "@assembler-with-cpp", 0},
815 {"@assembler-with-cpp",
816 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
817 %{!M:%{!MM:%{!E:%(invoke_as)}}}", 0},
819 /* Mark end of table */
823 /* Number of elements in default_compilers, not counting the terminator. */
825 static int n_default_compilers
826 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
828 /* A vector of options to give to the linker.
829 These options are accumulated by %x,
830 and substituted into the linker command with %X. */
831 static int n_linker_options;
832 static char **linker_options;
834 /* A vector of options to give to the assembler.
835 These options are accumulated by -Wa,
836 and substituted into the assembler command with %Y. */
837 static int n_assembler_options;
838 static char **assembler_options;
840 /* A vector of options to give to the preprocessor.
841 These options are accumulated by -Wp,
842 and substituted into the preprocessor command with %Z. */
843 static int n_preprocessor_options;
844 static char **preprocessor_options;
846 /* Define how to map long options into short ones. */
848 /* This structure describes one mapping. */
851 /* The long option's name. */
853 /* The equivalent short option. */
854 const char *equivalent;
855 /* Argument info. A string of flag chars; NULL equals no options.
856 a => argument required.
857 o => argument optional.
858 j => join argument to equivalent, making one word.
859 * => require other text after NAME as an argument. */
860 const char *arg_info;
863 /* This is the table of mappings. Mappings are tried sequentially
864 for each option encountered; the first one that matches, wins. */
866 struct option_map option_map[] =
868 {"--all-warnings", "-Wall", 0},
869 {"--ansi", "-ansi", 0},
870 {"--assemble", "-S", 0},
871 {"--assert", "-A", "a"},
872 {"--classpath", "-fclasspath=", "aj"},
873 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
874 {"--comments", "-C", 0},
875 {"--compile", "-c", 0},
876 {"--debug", "-g", "oj"},
877 {"--define-macro", "-D", "aj"},
878 {"--dependencies", "-M", 0},
879 {"--dump", "-d", "a"},
880 {"--dumpbase", "-dumpbase", "a"},
881 {"--entry", "-e", 0},
882 {"--extra-warnings", "-W", 0},
883 {"--for-assembler", "-Wa", "a"},
884 {"--for-linker", "-Xlinker", "a"},
885 {"--force-link", "-u", "a"},
886 {"--imacros", "-imacros", "a"},
887 {"--include", "-include", "a"},
888 {"--include-barrier", "-I-", 0},
889 {"--include-directory", "-I", "aj"},
890 {"--include-directory-after", "-idirafter", "a"},
891 {"--include-prefix", "-iprefix", "a"},
892 {"--include-with-prefix", "-iwithprefix", "a"},
893 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
894 {"--include-with-prefix-after", "-iwithprefix", "a"},
895 {"--language", "-x", "a"},
896 {"--library-directory", "-L", "a"},
897 {"--machine", "-m", "aj"},
898 {"--machine-", "-m", "*j"},
899 {"--no-line-commands", "-P", 0},
900 {"--no-precompiled-includes", "-noprecomp", 0},
901 {"--no-standard-includes", "-nostdinc", 0},
902 {"--no-standard-libraries", "-nostdlib", 0},
903 {"--no-warnings", "-w", 0},
904 {"--optimize", "-O", "oj"},
905 {"--output", "-o", "a"},
906 {"--output-class-directory", "-foutput-class-dir=", "ja"},
907 {"--param", "--param", "a"},
908 {"--pedantic", "-pedantic", 0},
909 {"--pedantic-errors", "-pedantic-errors", 0},
910 {"--pipe", "-pipe", 0},
911 {"--prefix", "-B", "a"},
912 {"--preprocess", "-E", 0},
913 {"--print-search-dirs", "-print-search-dirs", 0},
914 {"--print-file-name", "-print-file-name=", "aj"},
915 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
916 {"--print-missing-file-dependencies", "-MG", 0},
917 {"--print-multi-lib", "-print-multi-lib", 0},
918 {"--print-multi-directory", "-print-multi-directory", 0},
919 {"--print-prog-name", "-print-prog-name=", "aj"},
920 {"--profile", "-p", 0},
921 {"--profile-blocks", "-a", 0},
922 {"--quiet", "-q", 0},
923 {"--save-temps", "-save-temps", 0},
924 {"--shared", "-shared", 0},
925 {"--silent", "-q", 0},
926 {"--specs", "-specs=", "aj"},
927 {"--static", "-static", 0},
928 {"--std", "-std=", "aj"},
929 {"--symbolic", "-symbolic", 0},
930 {"--target", "-b", "a"},
931 {"--time", "-time", 0},
932 {"--trace-includes", "-H", 0},
933 {"--traditional", "-traditional", 0},
934 {"--traditional-cpp", "-traditional-cpp", 0},
935 {"--trigraphs", "-trigraphs", 0},
936 {"--undefine-macro", "-U", "aj"},
937 {"--use-version", "-V", "a"},
938 {"--user-dependencies", "-MM", 0},
939 {"--verbose", "-v", 0},
940 {"--version", "-dumpversion", 0},
941 {"--warn-", "-W", "*j"},
942 {"--write-dependencies", "-MD", 0},
943 {"--write-user-dependencies", "-MMD", 0},
947 /* Translate the options described by *ARGCP and *ARGVP.
948 Make a new vector and store it back in *ARGVP,
949 and store its length in *ARGVC. */
952 translate_options (argcp, argvp)
954 const char *const **argvp;
958 const char *const *argv = *argvp;
960 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
964 newv[newindex++] = argv[i++];
968 /* Translate -- options. */
969 if (argv[i][0] == '-' && argv[i][1] == '-')
972 /* Find a mapping that applies to this option. */
973 for (j = 0; j < ARRAY_SIZE (option_map); j++)
975 size_t optlen = strlen (option_map[j].name);
976 size_t arglen = strlen (argv[i]);
977 size_t complen = arglen > optlen ? optlen : arglen;
978 const char *arginfo = option_map[j].arg_info;
983 if (!strncmp (argv[i], option_map[j].name, complen))
990 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
991 if (strlen (option_map[k].name) >= arglen
992 && !strncmp (argv[i], option_map[k].name, arglen))
994 error ("Ambiguous abbreviation %s", argv[i]);
998 if (k != ARRAY_SIZE (option_map))
1002 if (arglen > optlen)
1004 /* If the option has an argument, accept that. */
1005 if (argv[i][optlen] == '=')
1006 arg = argv[i] + optlen + 1;
1008 /* If this mapping requires extra text at end of name,
1009 accept that as "argument". */
1010 else if (strchr (arginfo, '*') != 0)
1011 arg = argv[i] + optlen;
1013 /* Otherwise, extra text at end means mismatch.
1014 Try other mappings. */
1019 else if (strchr (arginfo, '*') != 0)
1021 error ("Incomplete `%s' option", option_map[j].name);
1025 /* Handle arguments. */
1026 if (strchr (arginfo, 'a') != 0)
1032 error ("Missing argument to `%s' option",
1033 option_map[j].name);
1040 else if (strchr (arginfo, '*') != 0)
1042 else if (strchr (arginfo, 'o') == 0)
1045 error ("Extraneous argument to `%s' option",
1046 option_map[j].name);
1050 /* Store the translation as one argv elt or as two. */
1051 if (arg != 0 && strchr (arginfo, 'j') != 0)
1052 newv[newindex++] = concat (option_map[j].equivalent, arg,
1056 newv[newindex++] = option_map[j].equivalent;
1057 newv[newindex++] = arg;
1060 newv[newindex++] = option_map[j].equivalent;
1068 /* Handle old-fashioned options--just copy them through,
1069 with their arguments. */
1070 else if (argv[i][0] == '-')
1072 const char *p = argv[i] + 1;
1076 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1077 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1078 else if (WORD_SWITCH_TAKES_ARG (p))
1079 nskip += WORD_SWITCH_TAKES_ARG (p);
1080 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1083 else if (! strcmp (p, "Xlinker"))
1086 /* Watch out for an option at the end of the command line that
1087 is missing arguments, and avoid skipping past the end of the
1089 if (nskip + i > argc)
1094 newv[newindex++] = argv[i++];
1099 /* Ordinary operands, or +e options. */
1100 newv[newindex++] = argv[i++];
1115 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1116 be considered whitespace. */
1117 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1119 else if (*p == '\n' || *p == ' ' || *p == '\t')
1133 /* Structures to keep track of prefixes to try when looking for files. */
1137 char *prefix; /* String to prepend to the path. */
1138 struct prefix_list *next; /* Next in linked list. */
1139 int require_machine_suffix; /* Don't use without machine_suffix. */
1140 /* 2 means try both machine_suffix and just_machine_suffix. */
1141 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1142 int priority; /* Sort key - priority within list */
1147 struct prefix_list *plist; /* List of prefixes to try */
1148 int max_len; /* Max length of a prefix in PLIST */
1149 const char *name; /* Name of this list (used in config stuff) */
1152 /* List of prefixes to try when looking for executables. */
1154 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1156 /* List of prefixes to try when looking for startup (crt0) files. */
1158 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1160 /* List of prefixes to try when looking for include files. */
1162 static struct path_prefix include_prefixes = { 0, 0, "include" };
1164 /* Suffix to attach to directories searched for commands.
1165 This looks like `MACHINE/VERSION/'. */
1167 static const char *machine_suffix = 0;
1169 /* Suffix to attach to directories searched for commands.
1170 This is just `MACHINE/'. */
1172 static const char *just_machine_suffix = 0;
1174 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1176 static const char *gcc_exec_prefix;
1178 /* Default prefixes to attach to command names. */
1180 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1181 #undef MD_EXEC_PREFIX
1182 #undef MD_STARTFILE_PREFIX
1183 #undef MD_STARTFILE_PREFIX_1
1186 /* If no prefixes defined, use the null string, which will disable them. */
1187 #ifndef MD_EXEC_PREFIX
1188 #define MD_EXEC_PREFIX ""
1190 #ifndef MD_STARTFILE_PREFIX
1191 #define MD_STARTFILE_PREFIX ""
1193 #ifndef MD_STARTFILE_PREFIX_1
1194 #define MD_STARTFILE_PREFIX_1 ""
1197 /* Supply defaults for the standard prefixes. */
1199 #ifndef STANDARD_EXEC_PREFIX
1200 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1202 #ifndef STANDARD_STARTFILE_PREFIX
1203 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1205 #ifndef TOOLDIR_BASE_PREFIX
1206 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1208 #ifndef STANDARD_BINDIR_PREFIX
1209 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1212 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1213 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1214 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1216 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1217 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1218 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1219 static const char *standard_startfile_prefix_1 = "/lib/";
1220 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1222 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1223 static const char *tooldir_prefix;
1225 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1227 /* Subdirectory to use for locating libraries. Set by
1228 set_multilib_dir based on the compilation options. */
1230 static const char *multilib_dir;
1232 /* Structure to keep track of the specs that have been defined so far.
1233 These are accessed using %(specname) or %[specname] in a compiler
1238 /* The following 2 fields must be first */
1239 /* to allow EXTRA_SPECS to be initialized */
1240 const char *name; /* name of the spec. */
1241 const char *ptr; /* available ptr if no static pointer */
1243 /* The following fields are not initialized */
1244 /* by EXTRA_SPECS */
1245 const char **ptr_spec; /* pointer to the spec itself. */
1246 struct spec_list *next; /* Next spec in linked list. */
1247 int name_len; /* length of the name */
1248 int alloc_p; /* whether string was allocated */
1251 #define INIT_STATIC_SPEC(NAME,PTR) \
1252 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1254 /* List of statically defined specs. */
1255 static struct spec_list static_specs[] =
1257 INIT_STATIC_SPEC ("asm", &asm_spec),
1258 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1259 INIT_STATIC_SPEC ("asm_options", &asm_options),
1260 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1261 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1262 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1263 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1264 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1265 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1266 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1267 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1268 INIT_STATIC_SPEC ("link", &link_spec),
1269 INIT_STATIC_SPEC ("lib", &lib_spec),
1270 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1271 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1272 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1273 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1274 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1275 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1276 INIT_STATIC_SPEC ("version", &compiler_version),
1277 INIT_STATIC_SPEC ("multilib", &multilib_select),
1278 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1279 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1280 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1281 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1282 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1283 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1284 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1285 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1286 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1289 #ifdef EXTRA_SPECS /* additional specs needed */
1290 /* Structure to keep track of just the first two args of a spec_list.
1291 That is all that the EXTRA_SPECS macro gives us. */
1298 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1299 static struct spec_list *extra_specs = (struct spec_list *) 0;
1302 /* List of dynamically allocates specs that have been defined so far. */
1304 static struct spec_list *specs = (struct spec_list *) 0;
1306 /* Add appropriate libgcc specs to OBSTACK, taking into account
1307 various permutations of -shared-libgcc, -shared, and such. */
1310 init_gcc_specs (obstack, shared_name, static_name)
1311 struct obstack *obstack;
1312 const char *shared_name;
1313 const char *static_name;
1317 /* If we see -shared-libgcc, then use the shared version. */
1318 sprintf (buffer, "%%{shared-libgcc:%s}", shared_name);
1319 obstack_grow (obstack, buffer, strlen (buffer));
1320 /* If we see -static-libgcc, then use the static version. */
1321 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1322 obstack_grow (obstack, buffer, strlen (buffer));
1323 /* Otherwise, if we see -shared, then use the shared version. */
1325 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s}}}",
1327 obstack_grow (obstack, buffer, strlen (buffer));
1328 /* Otherwise, use the static version. */
1330 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1332 obstack_grow (obstack, buffer, strlen (buffer));
1335 /* Initialize the specs lookup routines. */
1340 struct spec_list *next = (struct spec_list *) 0;
1341 struct spec_list *sl = (struct spec_list *) 0;
1345 return; /* Already initialized. */
1348 notice ("Using builtin specs.\n");
1351 extra_specs = (struct spec_list *)
1352 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1354 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1356 sl = &extra_specs[i];
1357 sl->name = extra_specs_1[i].name;
1358 sl->ptr = extra_specs_1[i].ptr;
1360 sl->name_len = strlen (sl->name);
1361 sl->ptr_spec = &sl->ptr;
1366 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1368 sl = &static_specs[i];
1373 #ifdef ENABLE_SHARED_LIBGCC
1374 /* ??? If neither -shared-libgcc nor --static-libgcc was
1375 seen, then we should be making an educated guess. Some proposed
1376 heuristics for ELF include:
1378 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1379 program will be doing dynamic loading, which will likely
1380 need the shared libgcc.
1382 (2) If "-ldl", then it's also a fair bet that we're doing
1385 (3) For each ET_DYN we're linking against (either through -lfoo
1386 or /some/path/foo.so), check to see whether it or one of
1387 its dependancies depends on a shared libgcc.
1391 If the runtime is fixed to look for program headers instead
1392 of calling __register_frame_info at all, for each object,
1393 use the shared libgcc if any EH symbol referenced.
1395 If crtstuff is fixed to not invoke __register_frame_info
1396 automatically, for each object, use the shared libgcc if
1397 any non-empty unwind section found.
1399 Doing any of this probably requires invoking an external program to
1400 do the actual object file scanning. */
1402 const char *p = libgcc_spec;
1405 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1406 when given the proper command line arguments. */
1409 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1411 init_gcc_specs (&obstack,
1412 #ifdef NO_SHARED_LIBGCC_MULTILIB
1422 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1424 /* Ug. We don't know shared library extensions. Hope that
1425 systems that use this form don't do shared libraries. */
1426 init_gcc_specs (&obstack,
1427 #ifdef NO_SHARED_LIBGCC_MULTILIB
1439 obstack_1grow (&obstack, *p);
1440 in_sep = (*p == ' ');
1445 obstack_1grow (&obstack, '\0');
1446 libgcc_spec = obstack_finish (&obstack);
1453 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1454 removed; If the spec starts with a + then SPEC is added to the end of the
1458 set_spec (name, spec)
1462 struct spec_list *sl;
1463 const char *old_spec;
1464 int name_len = strlen (name);
1467 /* If this is the first call, initialize the statically allocated specs. */
1470 struct spec_list *next = (struct spec_list *) 0;
1471 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1473 sl = &static_specs[i];
1480 /* See if the spec already exists. */
1481 for (sl = specs; sl; sl = sl->next)
1482 if (name_len == sl->name_len && !strcmp (sl->name, name))
1487 /* Not found - make it. */
1488 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1489 sl->name = xstrdup (name);
1490 sl->name_len = name_len;
1491 sl->ptr_spec = &sl->ptr;
1493 *(sl->ptr_spec) = "";
1498 old_spec = *(sl->ptr_spec);
1499 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1500 ? concat (old_spec, spec + 1, NULL_PTR)
1505 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1508 /* Free the old spec. */
1509 if (old_spec && sl->alloc_p)
1510 free ((PTR) old_spec);
1515 /* Accumulate a command (program name and args), and run it. */
1517 /* Vector of pointers to arguments in the current line of specifications. */
1519 static const char **argbuf;
1521 /* Number of elements allocated in argbuf. */
1523 static int argbuf_length;
1525 /* Number of elements in argbuf currently in use (containing args). */
1527 static int argbuf_index;
1529 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1530 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1533 static struct temp_name {
1534 const char *suffix; /* suffix associated with the code. */
1535 int length; /* strlen (suffix). */
1536 int unique; /* Indicates whether %g or %u/%U was used. */
1537 const char *filename; /* associated filename. */
1538 int filename_length; /* strlen (filename). */
1539 struct temp_name *next;
1542 /* Number of commands executed so far. */
1544 static int execution_count;
1546 /* Number of commands that exited with a signal. */
1548 static int signal_count;
1550 /* Name with which this program was invoked. */
1552 static const char *programname;
1554 /* Clear out the vector of arguments (after a command is executed). */
1562 /* Add one argument to the vector at the end.
1563 This is done when a space is seen or at the end of the line.
1564 If DELETE_ALWAYS is nonzero, the arg is a filename
1565 and the file should be deleted eventually.
1566 If DELETE_FAILURE is nonzero, the arg is a filename
1567 and the file should be deleted if this compilation fails. */
1570 store_arg (arg, delete_always, delete_failure)
1572 int delete_always, delete_failure;
1574 if (argbuf_index + 1 == argbuf_length)
1576 = (const char **) xrealloc (argbuf,
1577 (argbuf_length *= 2) * sizeof (const char *));
1579 argbuf[argbuf_index++] = arg;
1580 argbuf[argbuf_index] = 0;
1582 if (delete_always || delete_failure)
1583 record_temp_file (arg, delete_always, delete_failure);
1586 /* Load specs from a file name named FILENAME, replacing occurances of
1587 various different types of line-endings, \r\n, \n\r and just \r, with
1591 load_specs (filename)
1592 const char *filename;
1596 struct stat statbuf;
1603 notice ("Reading specs from %s\n", filename);
1605 /* Open and stat the file. */
1606 desc = open (filename, O_RDONLY, 0);
1608 pfatal_with_name (filename);
1609 if (stat (filename, &statbuf) < 0)
1610 pfatal_with_name (filename);
1612 /* Read contents of file into BUFFER. */
1613 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1614 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1616 pfatal_with_name (filename);
1617 buffer[readlen] = 0;
1620 specs = xmalloc (readlen + 1);
1622 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1628 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1630 else if (*(buffer_p + 1) == '\n') /* \r\n */
1644 /* Read compilation specs from a file named FILENAME,
1645 replacing the default ones.
1647 A suffix which starts with `*' is a definition for
1648 one of the machine-specific sub-specs. The "suffix" should be
1649 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1650 The corresponding spec is stored in asm_spec, etc.,
1651 rather than in the `compilers' vector.
1653 Anything invalid in the file is a fatal error. */
1656 read_specs (filename, main_p)
1657 const char *filename;
1663 buffer = load_specs (filename);
1665 /* Scan BUFFER for specs, putting them in the vector. */
1671 char *in, *out, *p1, *p2, *p3;
1673 /* Advance P in BUFFER to the next nonblank nocomment line. */
1674 p = skip_whitespace (p);
1678 /* Is this a special command that starts with '%'? */
1679 /* Don't allow this for the main specs file, since it would
1680 encourage people to overwrite it. */
1681 if (*p == '%' && !main_p)
1684 while (*p && *p != '\n')
1690 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1691 && (p1[sizeof "%include" - 1] == ' '
1692 || p1[sizeof "%include" - 1] == '\t'))
1696 p1 += sizeof ("%include");
1697 while (*p1 == ' ' || *p1 == '\t')
1700 if (*p1++ != '<' || p[-2] != '>')
1701 fatal ("specs %%include syntax malformed after %ld characters",
1702 (long) (p1 - buffer + 1));
1705 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1706 read_specs (new_filename ? new_filename : p1, FALSE);
1709 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1710 && (p1[sizeof "%include_noerr" - 1] == ' '
1711 || p1[sizeof "%include_noerr" - 1] == '\t'))
1715 p1 += sizeof "%include_noerr";
1716 while (*p1 == ' ' || *p1 == '\t')
1719 if (*p1++ != '<' || p[-2] != '>')
1720 fatal ("specs %%include syntax malformed after %ld characters",
1721 (long) (p1 - buffer + 1));
1724 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1726 read_specs (new_filename, FALSE);
1727 else if (verbose_flag)
1728 notice ("Could not find specs file %s\n", p1);
1731 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1732 && (p1[sizeof "%rename" - 1] == ' '
1733 || p1[sizeof "%rename" - 1] == '\t'))
1736 struct spec_list *sl;
1738 /* Get original name */
1739 p1 += sizeof "%rename";
1740 while (*p1 == ' ' || *p1 == '\t')
1743 if (! ISALPHA ((unsigned char) *p1))
1744 fatal ("specs %%rename syntax malformed after %ld characters",
1745 (long) (p1 - buffer));
1748 while (*p2 && !ISSPACE ((unsigned char) *p2))
1751 if (*p2 != ' ' && *p2 != '\t')
1752 fatal ("specs %%rename syntax malformed after %ld characters",
1753 (long) (p2 - buffer));
1757 while (*p2 == ' ' || *p2 == '\t')
1760 if (! ISALPHA ((unsigned char) *p2))
1761 fatal ("specs %%rename syntax malformed after %ld characters",
1762 (long) (p2 - buffer));
1764 /* Get new spec name. */
1766 while (*p3 && !ISSPACE ((unsigned char) *p3))
1770 fatal ("specs %%rename syntax malformed after %ld characters",
1771 (long) (p3 - buffer));
1774 for (sl = specs; sl; sl = sl->next)
1775 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1779 fatal ("specs %s spec was not found to be renamed", p1);
1781 if (strcmp (p1, p2) == 0)
1786 notice ("rename spec %s to %s\n", p1, p2);
1788 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1792 set_spec (p2, *(sl->ptr_spec));
1794 free ((PTR) *(sl->ptr_spec));
1796 *(sl->ptr_spec) = "";
1801 fatal ("specs unknown %% command after %ld characters",
1802 (long) (p1 - buffer));
1805 /* Find the colon that should end the suffix. */
1807 while (*p1 && *p1 != ':' && *p1 != '\n')
1810 /* The colon shouldn't be missing. */
1812 fatal ("specs file malformed after %ld characters",
1813 (long) (p1 - buffer));
1815 /* Skip back over trailing whitespace. */
1817 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1820 /* Copy the suffix to a string. */
1821 suffix = save_string (p, p2 - p);
1822 /* Find the next line. */
1823 p = skip_whitespace (p1 + 1);
1825 fatal ("specs file malformed after %ld characters",
1826 (long) (p - buffer));
1829 /* Find next blank line or end of string. */
1830 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1833 /* Specs end at the blank line and do not include the newline. */
1834 spec = save_string (p, p1 - p);
1837 /* Delete backslash-newline sequences from the spec. */
1842 if (in[0] == '\\' && in[1] == '\n')
1844 else if (in[0] == '#')
1845 while (*in && *in != '\n')
1853 if (suffix[0] == '*')
1855 if (! strcmp (suffix, "*link_command"))
1856 link_command_spec = spec;
1858 set_spec (suffix + 1, spec);
1862 /* Add this pair to the vector. */
1864 = ((struct compiler *)
1865 xrealloc (compilers,
1866 (n_compilers + 2) * sizeof (struct compiler)));
1868 compilers[n_compilers].suffix = suffix;
1869 compilers[n_compilers].spec = spec;
1871 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1875 link_command_spec = spec;
1878 if (link_command_spec == 0)
1879 fatal ("spec file has no spec for linking");
1882 /* Record the names of temporary files we tell compilers to write,
1883 and delete them at the end of the run. */
1885 /* This is the common prefix we use to make temp file names.
1886 It is chosen once for each run of this program.
1887 It is substituted into a spec by %g or %j.
1888 Thus, all temp file names contain this prefix.
1889 In practice, all temp file names start with this prefix.
1891 This prefix comes from the envvar TMPDIR if it is defined;
1892 otherwise, from the P_tmpdir macro if that is defined;
1893 otherwise, in /usr/tmp or /tmp;
1894 or finally the current directory if all else fails. */
1896 static const char *temp_filename;
1898 /* Length of the prefix. */
1900 static int temp_filename_length;
1902 /* Define the list of temporary files to delete. */
1907 struct temp_file *next;
1910 /* Queue of files to delete on success or failure of compilation. */
1911 static struct temp_file *always_delete_queue;
1912 /* Queue of files to delete on failure of compilation. */
1913 static struct temp_file *failure_delete_queue;
1915 /* Record FILENAME as a file to be deleted automatically.
1916 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1917 otherwise delete it in any case.
1918 FAIL_DELETE nonzero means delete it if a compilation step fails;
1919 otherwise delete it in any case. */
1922 record_temp_file (filename, always_delete, fail_delete)
1923 const char *filename;
1927 register char *const name = xstrdup (filename);
1931 register struct temp_file *temp;
1932 for (temp = always_delete_queue; temp; temp = temp->next)
1933 if (! strcmp (name, temp->name))
1936 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1937 temp->next = always_delete_queue;
1939 always_delete_queue = temp;
1946 register struct temp_file *temp;
1947 for (temp = failure_delete_queue; temp; temp = temp->next)
1948 if (! strcmp (name, temp->name))
1951 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1952 temp->next = failure_delete_queue;
1954 failure_delete_queue = temp;
1960 /* Delete all the temporary files whose names we previously recorded. */
1963 delete_if_ordinary (name)
1970 printf ("Delete %s? (y or n) ", name);
1974 while ((c = getchar ()) != '\n' && c != EOF)
1977 if (i == 'y' || i == 'Y')
1979 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1980 if (unlink (name) < 0)
1982 perror_with_name (name);
1986 delete_temp_files ()
1988 register struct temp_file *temp;
1990 for (temp = always_delete_queue; temp; temp = temp->next)
1991 delete_if_ordinary (temp->name);
1992 always_delete_queue = 0;
1995 /* Delete all the files to be deleted on error. */
1998 delete_failure_queue ()
2000 register struct temp_file *temp;
2002 for (temp = failure_delete_queue; temp; temp = temp->next)
2003 delete_if_ordinary (temp->name);
2007 clear_failure_queue ()
2009 failure_delete_queue = 0;
2012 /* Build a list of search directories from PATHS.
2013 PREFIX is a string to prepend to the list.
2014 If CHECK_DIR_P is non-zero we ensure the directory exists.
2015 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2016 It is also used by the --print-search-dirs flag. */
2019 build_search_list (paths, prefix, check_dir_p)
2020 struct path_prefix *paths;
2024 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2026 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2027 int first_time = TRUE;
2028 struct prefix_list *pprefix;
2030 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2031 obstack_1grow (&collect_obstack, '=');
2033 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2035 int len = strlen (pprefix->prefix);
2039 || is_directory (pprefix->prefix, machine_suffix, 0)))
2042 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2045 obstack_grow (&collect_obstack, pprefix->prefix, len);
2046 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2049 if (just_machine_suffix
2050 && pprefix->require_machine_suffix == 2
2052 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2055 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2058 obstack_grow (&collect_obstack, pprefix->prefix, len);
2059 obstack_grow (&collect_obstack, just_machine_suffix,
2063 if (! pprefix->require_machine_suffix)
2066 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2069 obstack_grow (&collect_obstack, pprefix->prefix, len);
2073 obstack_1grow (&collect_obstack, '\0');
2074 return obstack_finish (&collect_obstack);
2077 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2081 putenv_from_prefixes (paths, env_var)
2082 struct path_prefix *paths;
2083 const char *env_var;
2085 putenv (build_search_list (paths, env_var, 1));
2090 /* FIXME: the location independence code for VMS is hairier than this,
2091 and hasn't been written. */
2093 /* Split a filename into component directories. */
2096 split_directories (name, ptr_num_dirs)
2105 /* Count the number of directories. Special case MSDOS disk names as part
2106 of the initial directory. */
2108 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2109 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2114 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2116 while ((ch = *p++) != '\0')
2118 if (IS_DIR_SEPARATOR (ch))
2121 while (IS_DIR_SEPARATOR (*p))
2126 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2128 /* Now copy the directory parts. */
2131 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2132 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2134 dirs[num_dirs++] = save_string (p, 3);
2137 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2140 while ((ch = *p++) != '\0')
2142 if (IS_DIR_SEPARATOR (ch))
2144 while (IS_DIR_SEPARATOR (*p))
2147 dirs[num_dirs++] = save_string (q, p - q);
2153 dirs[num_dirs++] = save_string (q, p - 1 - q);
2155 dirs[num_dirs] = NULL_PTR;
2157 *ptr_num_dirs = num_dirs;
2162 /* Release storage held by split directories. */
2165 free_split_directories (dirs)
2170 while (dirs[i] != NULL_PTR)
2173 free ((char *) dirs);
2176 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2177 to PREFIX starting with the directory portion of PROGNAME and a relative
2178 pathname of the difference between BIN_PREFIX and PREFIX.
2180 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2181 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2182 function will return /red/green/blue/../omega.
2184 If no relative prefix can be found, return NULL. */
2187 make_relative_prefix (progname, bin_prefix, prefix)
2188 const char *progname;
2189 const char *bin_prefix;
2192 char **prog_dirs, **bin_dirs, **prefix_dirs;
2193 int prog_num, bin_num, prefix_num, std_loc_p;
2196 prog_dirs = split_directories (progname, &prog_num);
2197 bin_dirs = split_directories (bin_prefix, &bin_num);
2199 /* If there is no full pathname, try to find the program by checking in each
2200 of the directories specified in the PATH environment variable. */
2205 GET_ENV_PATH_LIST (temp, "PATH");
2208 char *startp, *endp;
2209 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2211 startp = endp = temp;
2214 if (*endp == PATH_SEPARATOR || *endp == 0)
2219 nstore[1] = DIR_SEPARATOR;
2224 strncpy (nstore, startp, endp - startp);
2225 if (! IS_DIR_SEPARATOR (endp[-1]))
2227 nstore[endp - startp] = DIR_SEPARATOR;
2228 nstore[endp - startp + 1] = 0;
2231 nstore[endp - startp] = 0;
2233 strcat (nstore, progname);
2234 if (! access (nstore, X_OK)
2235 #ifdef HAVE_EXECUTABLE_SUFFIX
2236 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2240 free_split_directories (prog_dirs);
2242 prog_dirs = split_directories (progname, &prog_num);
2248 endp = startp = endp + 1;
2256 /* Remove the program name from comparison of directory names. */
2259 /* Determine if the compiler is installed in the standard location, and if
2260 so, we don't need to specify relative directories. Also, if argv[0]
2261 doesn't contain any directory specifiers, there is not much we can do. */
2263 if (prog_num == bin_num)
2265 for (i = 0; i < bin_num; i++)
2267 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2271 if (prog_num <= 0 || i == bin_num)
2274 free_split_directories (prog_dirs);
2275 free_split_directories (bin_dirs);
2276 prog_dirs = bin_dirs = (char **) 0;
2281 prefix_dirs = split_directories (prefix, &prefix_num);
2283 /* Find how many directories are in common between bin_prefix & prefix. */
2284 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2285 for (common = 0; common < n; common++)
2287 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2291 /* If there are no common directories, there can be no relative prefix. */
2294 free_split_directories (prog_dirs);
2295 free_split_directories (bin_dirs);
2296 free_split_directories (prefix_dirs);
2300 /* Build up the pathnames in argv[0]. */
2301 for (i = 0; i < prog_num; i++)
2302 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2304 /* Now build up the ..'s. */
2305 for (i = common; i < n; i++)
2307 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2308 obstack_1grow (&obstack, DIR_SEPARATOR);
2311 /* Put in directories to move over to prefix. */
2312 for (i = common; i < prefix_num; i++)
2313 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2315 free_split_directories (prog_dirs);
2316 free_split_directories (bin_dirs);
2317 free_split_directories (prefix_dirs);
2319 obstack_1grow (&obstack, '\0');
2320 return obstack_finish (&obstack);
2324 /* Check whether NAME can be accessed in MODE. This is like access,
2325 except that it never considers directories to be executable. */
2328 access_check (name, mode)
2336 if (stat (name, &st) < 0
2337 || S_ISDIR (st.st_mode))
2341 return access (name, mode);
2344 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2345 access to check permissions.
2346 Return 0 if not found, otherwise return its name, allocated with malloc. */
2349 find_a_file (pprefix, name, mode)
2350 struct path_prefix *pprefix;
2355 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2356 struct prefix_list *pl;
2357 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2359 #ifdef DEFAULT_ASSEMBLER
2360 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2361 return xstrdup (DEFAULT_ASSEMBLER);
2364 #ifdef DEFAULT_LINKER
2365 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2366 return xstrdup (DEFAULT_LINKER);
2370 len += strlen (machine_suffix);
2372 temp = xmalloc (len);
2374 /* Determine the filename to execute (special case for absolute paths). */
2376 if (IS_ABSOLUTE_PATHNAME (name))
2378 if (access (name, mode) == 0)
2380 strcpy (temp, name);
2385 for (pl = pprefix->plist; pl; pl = pl->next)
2389 /* Some systems have a suffix for executable files.
2390 So try appending that first. */
2391 if (file_suffix[0] != 0)
2393 strcpy (temp, pl->prefix);
2394 strcat (temp, machine_suffix);
2395 strcat (temp, name);
2396 strcat (temp, file_suffix);
2397 if (access_check (temp, mode) == 0)
2399 if (pl->used_flag_ptr != 0)
2400 *pl->used_flag_ptr = 1;
2405 /* Now try just the name. */
2406 strcpy (temp, pl->prefix);
2407 strcat (temp, machine_suffix);
2408 strcat (temp, name);
2409 if (access_check (temp, mode) == 0)
2411 if (pl->used_flag_ptr != 0)
2412 *pl->used_flag_ptr = 1;
2417 /* Certain prefixes are tried with just the machine type,
2418 not the version. This is used for finding as, ld, etc. */
2419 if (just_machine_suffix && pl->require_machine_suffix == 2)
2421 /* Some systems have a suffix for executable files.
2422 So try appending that first. */
2423 if (file_suffix[0] != 0)
2425 strcpy (temp, pl->prefix);
2426 strcat (temp, just_machine_suffix);
2427 strcat (temp, name);
2428 strcat (temp, file_suffix);
2429 if (access_check (temp, mode) == 0)
2431 if (pl->used_flag_ptr != 0)
2432 *pl->used_flag_ptr = 1;
2437 strcpy (temp, pl->prefix);
2438 strcat (temp, just_machine_suffix);
2439 strcat (temp, name);
2440 if (access_check (temp, mode) == 0)
2442 if (pl->used_flag_ptr != 0)
2443 *pl->used_flag_ptr = 1;
2448 /* Certain prefixes can't be used without the machine suffix
2449 when the machine or version is explicitly specified. */
2450 if (! pl->require_machine_suffix)
2452 /* Some systems have a suffix for executable files.
2453 So try appending that first. */
2454 if (file_suffix[0] != 0)
2456 strcpy (temp, pl->prefix);
2457 strcat (temp, name);
2458 strcat (temp, file_suffix);
2459 if (access_check (temp, mode) == 0)
2461 if (pl->used_flag_ptr != 0)
2462 *pl->used_flag_ptr = 1;
2467 strcpy (temp, pl->prefix);
2468 strcat (temp, name);
2469 if (access_check (temp, mode) == 0)
2471 if (pl->used_flag_ptr != 0)
2472 *pl->used_flag_ptr = 1;
2482 /* Ranking of prefixes in the sort list. -B prefixes are put before
2485 enum path_prefix_priority
2487 PREFIX_PRIORITY_B_OPT,
2488 PREFIX_PRIORITY_LAST
2491 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2492 order according to PRIORITY. Within each PRIORITY, new entries are
2495 If WARN is nonzero, we will warn if no file is found
2496 through this prefix. WARN should point to an int
2497 which will be set to 1 if this entry is used.
2499 COMPONENT is the value to be passed to update_path.
2501 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2502 the complete value of machine_suffix.
2503 2 means try both machine_suffix and just_machine_suffix. */
2506 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2507 struct path_prefix *pprefix;
2509 const char *component;
2510 /* enum prefix_priority */ int priority;
2511 int require_machine_suffix;
2514 struct prefix_list *pl, **prev;
2517 for (prev = &pprefix->plist;
2518 (*prev) != NULL && (*prev)->priority <= priority;
2519 prev = &(*prev)->next)
2522 /* Keep track of the longest prefix */
2524 prefix = update_path (prefix, component);
2525 len = strlen (prefix);
2526 if (len > pprefix->max_len)
2527 pprefix->max_len = len;
2529 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2530 pl->prefix = save_string (prefix, len);
2531 pl->require_machine_suffix = require_machine_suffix;
2532 pl->used_flag_ptr = warn;
2533 pl->priority = priority;
2537 /* Insert after PREV */
2542 /* Execute the command specified by the arguments on the current line of spec.
2543 When using pipes, this includes several piped-together commands
2544 with `|' between them.
2546 Return 0 if successful, -1 if failed. */
2552 int n_commands; /* # of command. */
2556 const char *prog; /* program name. */
2557 const char **argv; /* vector of args. */
2558 int pid; /* pid of process for this command. */
2561 struct command *commands; /* each command buffer with above info. */
2563 /* Count # of piped commands. */
2564 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2565 if (strcmp (argbuf[i], "|") == 0)
2568 /* Get storage for each command. */
2569 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2571 /* Split argbuf into its separate piped processes,
2572 and record info about each one.
2573 Also search for the programs that are to be run. */
2575 commands[0].prog = argbuf[0]; /* first command. */
2576 commands[0].argv = &argbuf[0];
2577 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2580 commands[0].argv[0] = string;
2582 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2583 if (strcmp (argbuf[i], "|") == 0)
2584 { /* each command. */
2585 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2586 fatal ("-pipe not supported");
2588 argbuf[i] = 0; /* termination of command args. */
2589 commands[n_commands].prog = argbuf[i + 1];
2590 commands[n_commands].argv = &argbuf[i + 1];
2591 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2593 commands[n_commands].argv[0] = string;
2597 argbuf[argbuf_index] = 0;
2599 /* If -v, print what we are about to do, and maybe query. */
2603 /* For help listings, put a blank line between sub-processes. */
2604 if (print_help_list)
2605 fputc ('\n', stderr);
2607 /* Print each piped command as a separate line. */
2608 for (i = 0; i < n_commands; i++)
2610 const char *const *j;
2612 for (j = commands[i].argv; *j; j++)
2613 fprintf (stderr, " %s", *j);
2615 /* Print a pipe symbol after all but the last command. */
2616 if (i + 1 != n_commands)
2617 fprintf (stderr, " |");
2618 fprintf (stderr, "\n");
2622 notice ("\nGo ahead? (y or n) ");
2626 while (getchar () != '\n')
2629 if (i != 'y' && i != 'Y')
2634 /* Run each piped subprocess. */
2636 for (i = 0; i < n_commands; i++)
2638 char *errmsg_fmt, *errmsg_arg;
2639 const char *string = commands[i].argv[0];
2641 /* For some bizarre reason, the second argument of execvp() is
2642 char *const *, not const char *const *. */
2643 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2644 programname, temp_filename,
2645 &errmsg_fmt, &errmsg_arg,
2646 ((i == 0 ? PEXECUTE_FIRST : 0)
2647 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2648 | (string == commands[i].prog
2649 ? PEXECUTE_SEARCH : 0)
2650 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2652 if (commands[i].pid == -1)
2653 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2655 if (string != commands[i].prog)
2656 free ((PTR) string);
2661 /* Wait for all the subprocesses to finish.
2662 We don't care what order they finish in;
2663 we know that N_COMMANDS waits will get them all.
2664 Ignore subprocesses that we don't know about,
2665 since they can be spawned by the process that exec'ed us. */
2669 #ifdef HAVE_GETRUSAGE
2671 double ut = 0.0, st = 0.0;
2674 for (i = 0; i < n_commands;)
2680 pid = pwait (commands[i].pid, &status, 0);
2684 #ifdef HAVE_GETRUSAGE
2687 /* getrusage returns the total resource usage of all children
2688 up to now. Copy the previous values into prus, get the
2689 current statistics, then take the difference. */
2692 getrusage (RUSAGE_CHILDREN, &rus);
2693 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2694 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2695 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2697 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2698 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2699 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2703 for (j = 0; j < n_commands; j++)
2704 if (commands[j].pid == pid)
2707 if (WIFSIGNALED (status))
2710 /* SIGPIPE is a special case. It happens in -pipe mode
2711 when the compiler dies before the preprocessor is
2712 done, or the assembler dies before the compiler is
2713 done. There's generally been an error already, and
2714 this is just fallout. So don't generate another error
2715 unless we would otherwise have succeeded. */
2716 if (WTERMSIG (status) == SIGPIPE
2717 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2722 Internal error: %s (program %s)\n\
2723 Please submit a full bug report.\n\
2724 See %s for instructions.",
2725 strsignal (WTERMSIG (status)), commands[j].prog,
2730 else if (WIFEXITED (status)
2731 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2733 if (WEXITSTATUS (status) > greatest_status)
2734 greatest_status = WEXITSTATUS (status);
2737 #ifdef HAVE_GETRUSAGE
2738 if (report_times && ut + st != 0)
2739 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2748 /* Find all the switches given to us
2749 and make a vector describing them.
2750 The elements of the vector are strings, one per switch given.
2751 If a switch uses following arguments, then the `part1' field
2752 is the switch itself and the `args' field
2753 is a null-terminated vector containing the following arguments.
2754 The `live_cond' field is:
2756 1 if the switch is true in a conditional spec,
2757 -1 if false (overridden by a later switch)
2758 -2 if this switch should be ignored (used in %{<S})
2759 The `validated' field is nonzero if any spec has looked at this switch;
2760 if it remains zero at the end of the run, it must be meaningless. */
2763 #define SWITCH_FALSE -1
2764 #define SWITCH_IGNORE -2
2765 #define SWITCH_LIVE 1
2772 unsigned char validated;
2773 unsigned char ordering;
2776 static struct switchstr *switches;
2778 static int n_switches;
2783 const char *language;
2786 /* Also a vector of input files specified. */
2788 static struct infile *infiles;
2790 static int n_infiles;
2792 /* This counts the number of libraries added by lang_specific_driver, so that
2793 we can tell if there were any user supplied any files or libraries. */
2795 static int added_libraries;
2797 /* And a vector of corresponding output files is made up later. */
2799 static const char **outfiles;
2801 /* Used to track if none of the -B paths are used. */
2804 /* Used to track if standard path isn't used and -b or -V is specified. */
2805 static int warn_std;
2807 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2808 static int *warn_std_ptr = 0;
2810 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2812 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2813 is true if we should look for an executable suffix as well. */
2816 convert_filename (name, do_exe)
2826 len = strlen (name);
2828 #ifdef HAVE_OBJECT_SUFFIX
2829 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2831 && name[len - 2] == '.'
2832 && name[len - 1] == 'o')
2834 obstack_grow (&obstack, name, len - 2);
2835 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2836 name = obstack_finish (&obstack);
2840 #if defined(HAVE_EXECUTABLE_SUFFIX) && !defined(NO_AUTO_EXE_SUFFIX)
2841 /* If there is no filetype, make it the executable suffix (which includes
2842 the "."). But don't get confused if we have just "-o". */
2843 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2846 for (i = len - 1; i >= 0; i--)
2847 if (IS_DIR_SEPARATOR (name[i]))
2850 for (i++; i < len; i++)
2854 obstack_grow (&obstack, name, len);
2855 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2856 name = obstack_finish (&obstack);
2863 /* Display the command line switches accepted by gcc. */
2867 printf (_("Usage: %s [options] file...\n"), programname);
2868 fputs (_("Options:\n"), stdout);
2870 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2871 fputs (_(" --help Display this information\n"), stdout);
2872 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2874 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2875 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2876 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2877 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2878 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2879 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2880 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2881 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2882 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2884 -print-multi-lib Display the mapping between command line options and\n\
2885 multiple library search directories\n"), stdout);
2886 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2887 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2888 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2889 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2890 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2891 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2892 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2893 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2894 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2895 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2896 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2897 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2898 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2899 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2900 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2901 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2902 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2904 -x <language> Specify the language of the following input files\n\
2905 Permissable languages include: c c++ assembler none\n\
2906 'none' means revert to the default behaviour of\n\
2907 guessing the language based on the file's extension\n\
2911 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2912 passed on to the various sub-processes invoked by %s. In order to pass\n\
2913 other options on to these processes the -W<letter> options must be used.\n\
2916 /* The rest of the options are displayed by invocations of the various
2921 add_preprocessor_option (option, len)
2925 n_preprocessor_options++;
2927 if (! preprocessor_options)
2928 preprocessor_options
2929 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2931 preprocessor_options
2932 = (char **) xrealloc (preprocessor_options,
2933 n_preprocessor_options * sizeof (char *));
2935 preprocessor_options [n_preprocessor_options - 1] =
2936 save_string (option, len);
2940 add_assembler_option (option, len)
2944 n_assembler_options++;
2946 if (! assembler_options)
2948 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2951 = (char **) xrealloc (assembler_options,
2952 n_assembler_options * sizeof (char *));
2954 assembler_options [n_assembler_options - 1] = save_string (option, len);
2958 add_linker_option (option, len)
2964 if (! linker_options)
2966 = (char **) xmalloc (n_linker_options * sizeof (char *));
2969 = (char **) xrealloc (linker_options,
2970 n_linker_options * sizeof (char *));
2972 linker_options [n_linker_options - 1] = save_string (option, len);
2975 /* Create the vector `switches' and its contents.
2976 Store its length in `n_switches'. */
2979 process_command (argc, argv)
2981 const char *const *argv;
2986 const char *spec_lang = 0;
2987 int last_language_n_infiles;
2990 int lang_n_infiles = 0;
2991 #ifdef MODIFY_TARGET_NAME
2992 int is_modify_target_name;
2996 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3000 added_libraries = 0;
3002 /* Figure compiler version from version string. */
3004 compiler_version = temp1 = xstrdup (version_string);
3006 for (; *temp1; ++temp1)
3015 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3016 see if we can create it from the pathname specified in argv[0]. */
3019 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3020 if (!gcc_exec_prefix)
3022 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3023 standard_exec_prefix);
3024 if (gcc_exec_prefix)
3025 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
3029 if (gcc_exec_prefix)
3031 int len = strlen (gcc_exec_prefix);
3033 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3034 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3036 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3037 if (IS_DIR_SEPARATOR (*temp)
3038 && strncmp (temp + 1, "lib", 3) == 0
3039 && IS_DIR_SEPARATOR (temp[4])
3040 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3041 len -= sizeof ("/lib/gcc-lib/") - 1;
3044 set_std_prefix (gcc_exec_prefix, len);
3045 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3046 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3047 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3048 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3051 /* COMPILER_PATH and LIBRARY_PATH have values
3052 that are lists of directory names with colons. */
3054 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3057 const char *startp, *endp;
3058 char *nstore = (char *) alloca (strlen (temp) + 3);
3060 startp = endp = temp;
3063 if (*endp == PATH_SEPARATOR || *endp == 0)
3065 strncpy (nstore, startp, endp - startp);
3067 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3068 else if (!IS_DIR_SEPARATOR (endp[-1]))
3070 nstore[endp - startp] = DIR_SEPARATOR;
3071 nstore[endp - startp + 1] = 0;
3074 nstore[endp - startp] = 0;
3075 add_prefix (&exec_prefixes, nstore, 0,
3076 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3077 add_prefix (&include_prefixes,
3078 concat (nstore, "include", NULL_PTR),
3079 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3082 endp = startp = endp + 1;
3089 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3090 if (temp && *cross_compile == '0')
3092 const char *startp, *endp;
3093 char *nstore = (char *) alloca (strlen (temp) + 3);
3095 startp = endp = temp;
3098 if (*endp == PATH_SEPARATOR || *endp == 0)
3100 strncpy (nstore, startp, endp - startp);
3102 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3103 else if (!IS_DIR_SEPARATOR (endp[-1]))
3105 nstore[endp - startp] = DIR_SEPARATOR;
3106 nstore[endp - startp + 1] = 0;
3109 nstore[endp - startp] = 0;
3110 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3111 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3114 endp = startp = endp + 1;
3121 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3122 GET_ENV_PATH_LIST (temp, "LPATH");
3123 if (temp && *cross_compile == '0')
3125 const char *startp, *endp;
3126 char *nstore = (char *) alloca (strlen (temp) + 3);
3128 startp = endp = temp;
3131 if (*endp == PATH_SEPARATOR || *endp == 0)
3133 strncpy (nstore, startp, endp - startp);
3135 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3136 else if (!IS_DIR_SEPARATOR (endp[-1]))
3138 nstore[endp - startp] = DIR_SEPARATOR;
3139 nstore[endp - startp + 1] = 0;
3142 nstore[endp - startp] = 0;
3143 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3144 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3147 endp = startp = endp + 1;
3154 /* Convert new-style -- options to old-style. */
3155 translate_options (&argc, &argv);
3157 /* Do language-specific adjustment/addition of flags. */
3158 lang_specific_driver (&argc, &argv, &added_libraries);
3160 /* Scan argv twice. Here, the first time, just count how many switches
3161 there will be in their vector, and how many input files in theirs.
3162 Also parse any switches that determine the configuration name, such as -b.
3163 Here we also parse the switches that cc itself uses (e.g. -v). */
3165 for (i = 1; i < argc; i++)
3167 if (! strcmp (argv[i], "-dumpspecs"))
3169 struct spec_list *sl;
3171 for (sl = specs; sl; sl = sl->next)
3172 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3173 if (link_command_spec)
3174 printf ("*link_command:\n%s\n\n", link_command_spec);
3177 else if (! strcmp (argv[i], "-dumpversion"))
3179 printf ("%s\n", spec_version);
3182 else if (! strcmp (argv[i], "-dumpmachine"))
3184 printf ("%s\n", spec_machine);
3187 else if (strcmp (argv[i], "-fhelp") == 0)
3189 /* translate_options () has turned --help into -fhelp. */
3190 print_help_list = 1;
3192 /* We will be passing a dummy file on to the sub-processes. */
3196 add_preprocessor_option ("--help", 6);
3197 add_assembler_option ("--help", 6);
3198 add_linker_option ("--help", 6);
3200 else if (strcmp (argv[i], "-ftarget-help") == 0)
3202 /* translate_options() has turned --target-help into -ftarget-help. */
3203 target_help_flag = 1;
3205 /* We will be passing a dummy file on to the sub-processes. */
3209 add_preprocessor_option ("--target-help", 13);
3210 add_assembler_option ("--target-help", 13);
3211 add_linker_option ("--target-help", 13);
3213 else if (! strcmp (argv[i], "-pass-exit-codes"))
3215 pass_exit_codes = 1;
3218 else if (! strcmp (argv[i], "-print-search-dirs"))
3219 print_search_dirs = 1;
3220 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3221 print_file_name = "libgcc.a";
3222 else if (! strncmp (argv[i], "-print-file-name=", 17))
3223 print_file_name = argv[i] + 17;
3224 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3225 print_prog_name = argv[i] + 17;
3226 else if (! strcmp (argv[i], "-print-multi-lib"))
3227 print_multi_lib = 1;
3228 else if (! strcmp (argv[i], "-print-multi-directory"))
3229 print_multi_directory = 1;
3230 else if (! strncmp (argv[i], "-Wa,", 4))
3233 /* Pass the rest of this option to the assembler. */
3235 /* Split the argument at commas. */
3237 for (j = 4; argv[i][j]; j++)
3238 if (argv[i][j] == ',')
3240 add_assembler_option (argv[i] + prev, j - prev);
3244 /* Record the part after the last comma. */
3245 add_assembler_option (argv[i] + prev, j - prev);
3247 else if (! strncmp (argv[i], "-Wp,", 4))
3250 /* Pass the rest of this option to the preprocessor. */
3252 /* Split the argument at commas. */
3254 for (j = 4; argv[i][j]; j++)
3255 if (argv[i][j] == ',')
3257 add_preprocessor_option (argv[i] + prev, j - prev);
3261 /* Record the part after the last comma. */
3262 add_preprocessor_option (argv[i] + prev, j - prev);
3264 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3265 /* The +e options to the C++ front-end. */
3267 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3270 /* Split the argument at commas. */
3271 for (j = 3; argv[i][j]; j++)
3272 n_infiles += (argv[i][j] == ',');
3274 else if (strcmp (argv[i], "-Xlinker") == 0)
3277 fatal ("argument to `-Xlinker' is missing");
3282 else if (strncmp (argv[i], "-l", 2) == 0)
3284 else if (strcmp (argv[i], "-save-temps") == 0)
3286 save_temps_flag = 1;
3289 else if (strcmp (argv[i], "-specs") == 0)
3291 struct user_specs *user = (struct user_specs *)
3292 xmalloc (sizeof (struct user_specs));
3294 fatal ("argument to `-specs' is missing");
3296 user->next = (struct user_specs *) 0;
3297 user->filename = argv[i];
3298 if (user_specs_tail)
3299 user_specs_tail->next = user;
3301 user_specs_head = user;
3302 user_specs_tail = user;
3304 else if (strncmp (argv[i], "-specs=", 7) == 0)
3306 struct user_specs *user = (struct user_specs *)
3307 xmalloc (sizeof (struct user_specs));
3308 if (strlen (argv[i]) == 7)
3309 fatal ("argument to `-specs=' is missing");
3311 user->next = (struct user_specs *) 0;
3312 user->filename = argv[i] + 7;
3313 if (user_specs_tail)
3314 user_specs_tail->next = user;
3316 user_specs_head = user;
3317 user_specs_tail = user;
3319 else if (strcmp (argv[i], "-time") == 0)
3321 else if (argv[i][0] == '-' && argv[i][1] != 0)
3323 register const char *p = &argv[i][1];
3324 register int c = *p;
3330 if (p[1] == 0 && i + 1 == argc)
3331 fatal ("argument to `-b' is missing");
3333 spec_machine = argv[++i];
3335 spec_machine = p + 1;
3337 warn_std_ptr = &warn_std;
3343 if (p[1] == 0 && i + 1 == argc)
3344 fatal ("argument to `-B' is missing");
3350 /* As a kludge, if the arg is "[foo/]stageN/", just
3351 add "[foo/]include" to the include prefix. */
3352 int len = strlen (value);
3355 && (IS_DIR_SEPARATOR (value[len - 8]))))
3356 && strncmp (value + len - 7, "stage", 5) == 0
3357 && ISDIGIT (value[len - 2])
3358 && (IS_DIR_SEPARATOR (value[len - 1])))
3361 add_prefix (&include_prefixes, "include", NULL_PTR,
3362 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3365 char *string = xmalloc (len + 1);
3366 strncpy (string, value, len-7);
3367 strcpy (string+len-7, "include");
3368 add_prefix (&include_prefixes, string, NULL_PTR,
3369 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3373 add_prefix (&exec_prefixes, value, NULL_PTR,
3374 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3375 add_prefix (&startfile_prefixes, value, NULL_PTR,
3376 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3377 add_prefix (&include_prefixes, concat (value, "include",
3380 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3385 case 'v': /* Print our subcommands and print versions. */
3387 /* If they do anything other than exactly `-v', don't set
3388 verbose_flag; rather, continue on to give the error. */
3396 if (p[1] == 0 && i + 1 == argc)
3397 fatal ("argument to `-V' is missing");
3399 spec_version = argv[++i];
3401 spec_version = p + 1;
3402 compiler_version = spec_version;
3403 warn_std_ptr = &warn_std;
3405 /* Validate the version number. Use the same checks
3406 done when inserting it into a spec.
3408 The format of the version string is
3409 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3411 const char *v = compiler_version;
3413 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3414 while (! ISDIGIT (*v))
3417 if (v > compiler_version && v[-1] != '-')
3418 fatal ("invalid version number format");
3420 /* Set V after the first period. */
3421 while (ISDIGIT (*v))
3425 fatal ("invalid version number format");
3428 while (ISDIGIT (*v))
3431 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3432 fatal ("invalid version number format");
3448 #if defined(HAVE_EXECUTABLE_SUFFIX)
3453 /* Forward scan, just in case -S or -c is specified
3460 if (argv[j][0] == '-')
3462 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3468 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3469 j += skip - (argv[j][2] != 0);
3470 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3477 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3479 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3481 argv[i] = convert_filename (argv[i], ! have_c);
3488 #ifdef MODIFY_TARGET_NAME
3489 is_modify_target_name = 0;
3492 j < sizeof modify_target / sizeof modify_target[0]; j++)
3493 if (! strcmp (argv[i], modify_target[j].sw))
3496 = (char *) xmalloc (strlen (modify_target[j].str)
3497 + strlen (spec_machine));
3500 int made_addition = 0;
3502 is_modify_target_name = 1;
3503 for (p = spec_machine, q = new_name; *p != 0; )
3505 if (modify_target[j].add_del == DELETE
3506 && (! strncmp (q, modify_target[j].str,
3507 strlen (modify_target[j].str))))
3508 p += strlen (modify_target[j].str);
3509 else if (modify_target[j].add_del == ADD
3510 && ! made_addition && *p == '-')
3512 for (r = modify_target[j].str; *r != 0; )
3520 spec_machine = new_name;
3523 if (is_modify_target_name)
3529 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3530 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3531 else if (WORD_SWITCH_TAKES_ARG (p))
3532 i += WORD_SWITCH_TAKES_ARG (p);
3542 if (have_c && have_o && lang_n_infiles > 1)
3543 fatal ("cannot specify -o with -c or -S and multiple compilations");
3545 /* Set up the search paths before we go looking for config files. */
3547 /* These come before the md prefixes so that we will find gcc's subcommands
3548 (such as cpp) rather than those of the host system. */
3549 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3550 as well as trying the machine and the version. */
3552 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3553 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3554 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3555 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3556 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3557 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3560 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3561 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3562 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3563 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3565 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3566 dir_separator_str, NULL_PTR);
3568 /* If tooldir is relative, base it on exec_prefixes. A relative
3569 tooldir lets us move the installed tree as a unit.
3571 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3572 directories, so that we can search both the user specified directory
3573 and the standard place. */
3575 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3577 if (gcc_exec_prefix)
3579 char *gcc_exec_tooldir_prefix
3580 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3581 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3583 add_prefix (&exec_prefixes,
3584 concat (gcc_exec_tooldir_prefix, "bin",
3585 dir_separator_str, NULL_PTR),
3586 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3587 add_prefix (&startfile_prefixes,
3588 concat (gcc_exec_tooldir_prefix, "lib",
3589 dir_separator_str, NULL_PTR),
3590 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3593 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3594 dir_separator_str, spec_version,
3595 dir_separator_str, tooldir_prefix, NULL_PTR);
3598 add_prefix (&exec_prefixes,
3599 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3600 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3601 add_prefix (&startfile_prefixes,
3602 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3603 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3605 /* More prefixes are enabled in main, after we read the specs file
3606 and determine whether this is cross-compilation or not. */
3608 /* Then create the space for the vectors and scan again. */
3610 switches = ((struct switchstr *)
3611 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3612 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3615 last_language_n_infiles = -1;
3617 /* This, time, copy the text of each switch and store a pointer
3618 to the copy in the vector of switches.
3619 Store all the infiles in their vector. */
3621 for (i = 1; i < argc; i++)
3623 /* Just skip the switches that were handled by the preceding loop. */
3624 #ifdef MODIFY_TARGET_NAME
3625 is_modify_target_name = 0;
3627 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3628 if (! strcmp (argv[i], modify_target[j].sw))
3629 is_modify_target_name = 1;
3631 if (is_modify_target_name)
3635 if (! strncmp (argv[i], "-Wa,", 4))
3637 else if (! strncmp (argv[i], "-Wp,", 4))
3639 else if (! strcmp (argv[i], "-pass-exit-codes"))
3641 else if (! strcmp (argv[i], "-print-search-dirs"))
3643 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3645 else if (! strncmp (argv[i], "-print-file-name=", 17))
3647 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3649 else if (! strcmp (argv[i], "-print-multi-lib"))
3651 else if (! strcmp (argv[i], "-print-multi-directory"))
3653 else if (strcmp (argv[i], "-ftarget-help") == 0)
3655 /* Create a dummy input file, so that we can pass --target-help on to
3656 the various sub-processes. */
3657 infiles[n_infiles].language = "c";
3658 infiles[n_infiles++].name = "target-dummy";
3660 /* Preserve the --target-help switch so that it can be caught by
3661 the cc1 spec string. */
3662 switches[n_switches].part1 = "--target-help";
3663 switches[n_switches].args = 0;
3664 switches[n_switches].live_cond = SWITCH_OK;
3665 switches[n_switches].validated = 0;
3669 else if (strcmp (argv[i], "-fhelp") == 0)
3673 /* Create a dummy input file, so that we can pass --help on to
3674 the various sub-processes. */
3675 infiles[n_infiles].language = "c";
3676 infiles[n_infiles++].name = "help-dummy";
3678 /* Preserve the --help switch so that it can be caught by the
3680 switches[n_switches].part1 = "--help";
3681 switches[n_switches].args = 0;
3682 switches[n_switches].live_cond = SWITCH_OK;
3683 switches[n_switches].validated = 0;
3688 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3690 /* Compensate for the +e options to the C++ front-end;
3691 they're there simply for cfront call-compatibility. We do
3692 some magic in default_compilers to pass them down properly.
3693 Note we deliberately start at the `+' here, to avoid passing
3694 -e0 or -e1 down into the linker. */
3695 switches[n_switches].part1 = &argv[i][0];
3696 switches[n_switches].args = 0;
3697 switches[n_switches].live_cond = SWITCH_OK;
3698 switches[n_switches].validated = 0;
3701 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3704 /* Split the argument at commas. */
3706 for (j = 4; argv[i][j]; j++)
3707 if (argv[i][j] == ',')
3709 infiles[n_infiles].language = "*";
3710 infiles[n_infiles++].name
3711 = save_string (argv[i] + prev, j - prev);
3714 /* Record the part after the last comma. */
3715 infiles[n_infiles].language = "*";
3716 infiles[n_infiles++].name = argv[i] + prev;
3718 else if (strcmp (argv[i], "-Xlinker") == 0)
3720 infiles[n_infiles].language = "*";
3721 infiles[n_infiles++].name = argv[++i];
3723 else if (strncmp (argv[i], "-l", 2) == 0)
3725 infiles[n_infiles].language = "*";
3726 infiles[n_infiles++].name = argv[i];
3728 else if (strcmp (argv[i], "-specs") == 0)
3730 else if (strncmp (argv[i], "-specs=", 7) == 0)
3732 else if (strcmp (argv[i], "-time") == 0)
3734 else if ((save_temps_flag || report_times)
3735 && strcmp (argv[i], "-pipe") == 0)
3737 /* -save-temps overrides -pipe, so that temp files are produced */
3738 if (save_temps_flag)
3739 error ("Warning: -pipe ignored because -save-temps specified");
3740 /* -time overrides -pipe because we can't get correct stats when
3741 multiple children are running at once. */
3742 else if (report_times)
3743 error ("Warning: -pipe ignored because -time specified");
3745 else if (argv[i][0] == '-' && argv[i][1] != 0)
3747 const char *p = &argv[i][1];
3752 if (p[1] == 0 && i + 1 == argc)
3753 fatal ("argument to `-x' is missing");
3755 spec_lang = argv[++i];
3758 if (! strcmp (spec_lang, "none"))
3759 /* Suppress the warning if -xnone comes after the last input
3760 file, because alternate command interfaces like g++ might
3761 find it useful to place -xnone after each input file. */
3764 last_language_n_infiles = n_infiles;
3767 switches[n_switches].part1 = p;
3768 /* Deal with option arguments in separate argv elements. */
3769 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3770 || WORD_SWITCH_TAKES_ARG (p))
3773 int n_args = WORD_SWITCH_TAKES_ARG (p);
3777 /* Count only the option arguments in separate argv elements. */
3778 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3780 if (i + n_args >= argc)
3781 fatal ("argument to `-%s' is missing", p);
3782 switches[n_switches].args
3783 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3785 switches[n_switches].args[j++] = argv[++i];
3786 /* Null-terminate the vector. */
3787 switches[n_switches].args[j] = 0;
3789 else if (strchr (switches_need_spaces, c))
3791 /* On some systems, ld cannot handle some options without
3792 a space. So split the option from its argument. */
3793 char *part1 = (char *) xmalloc (2);
3798 switches[n_switches].part1 = part1;
3799 switches[n_switches].args
3800 = (const char **) xmalloc (2 * sizeof (const char *));
3801 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3802 strcpy (tmp, &p[1]);
3803 switches[n_switches].args[1] = 0;
3806 switches[n_switches].args = 0;
3808 switches[n_switches].live_cond = SWITCH_OK;
3809 switches[n_switches].validated = 0;
3810 switches[n_switches].ordering = 0;
3811 /* These are always valid, since gcc.c itself understands it. */
3812 if (!strcmp (p, "save-temps")
3813 || !strcmp (p, "static-libgcc")
3814 || !strcmp (p, "shared-libgcc"))
3815 switches[n_switches].validated = 1;
3818 char ch = switches[n_switches].part1[0];
3819 if (ch == 'V' || ch == 'b' || ch == 'B')
3820 switches[n_switches].validated = 1;
3826 #ifdef HAVE_OBJECT_SUFFIX
3827 argv[i] = convert_filename (argv[i], 0);
3830 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3832 perror_with_name (argv[i]);
3837 infiles[n_infiles].language = spec_lang;
3838 infiles[n_infiles++].name = argv[i];
3843 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3844 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3846 switches[n_switches].part1 = 0;
3847 infiles[n_infiles].name = 0;
3850 /* Process a spec string, accumulating and running commands. */
3852 /* These variables describe the input file name.
3853 input_file_number is the index on outfiles of this file,
3854 so that the output file name can be stored for later use by %o.
3855 input_basename is the start of the part of the input file
3856 sans all directory names, and basename_length is the number
3857 of characters starting there excluding the suffix .c or whatever. */
3859 const char *input_filename;
3860 static int input_file_number;
3861 size_t input_filename_length;
3862 static int basename_length;
3863 static int suffixed_basename_length;
3864 static const char *input_basename;
3865 static const char *input_suffix;
3867 /* The compiler used to process the current input file. */
3868 static struct compiler *input_file_compiler;
3870 /* These are variables used within do_spec and do_spec_1. */
3872 /* Nonzero if an arg has been started and not yet terminated
3873 (with space, tab or newline). */
3874 static int arg_going;
3876 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3877 is a temporary file name. */
3878 static int delete_this_arg;
3880 /* Nonzero means %w has been seen; the next arg to be terminated
3881 is the output file name of this compilation. */
3882 static int this_is_output_file;
3884 /* Nonzero means %s has been seen; the next arg to be terminated
3885 is the name of a library file and we should try the standard
3886 search dirs for it. */
3887 static int this_is_library_file;
3889 /* Nonzero means that the input of this command is coming from a pipe. */
3890 static int input_from_pipe;
3892 /* Nonnull means substitute this for any suffix when outputting a switches
3894 static const char *suffix_subst;
3896 /* Process the spec SPEC and run the commands specified therein.
3897 Returns 0 if the spec is successfully processed; -1 if failed. */
3907 delete_this_arg = 0;
3908 this_is_output_file = 0;
3909 this_is_library_file = 0;
3910 input_from_pipe = 0;
3911 suffix_subst = NULL;
3913 value = do_spec_1 (spec, 0, NULL_PTR);
3915 /* Force out any unfinished command.
3916 If -pipe, this forces out the last command if it ended in `|'. */
3919 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3922 if (argbuf_index > 0)
3929 /* Process the sub-spec SPEC as a portion of a larger spec.
3930 This is like processing a whole spec except that we do
3931 not initialize at the beginning and we do not supply a
3932 newline by default at the end.
3933 INSWITCH nonzero means don't process %-sequences in SPEC;
3934 in this case, % is treated as an ordinary character.
3935 This is used while substituting switches.
3936 INSWITCH nonzero also causes SPC not to terminate an argument.
3938 Value is zero unless a line was finished
3939 and the command on that line reported an error. */
3942 do_spec_1 (spec, inswitch, soft_matched_part)
3945 const char *soft_matched_part;
3947 register const char *p = spec;
3954 /* If substituting a switch, treat all chars like letters.
3955 Otherwise, NL, SPC, TAB and % are special. */
3956 switch (inswitch ? 'a' : c)
3959 /* End of line: finish any pending argument,
3960 then run the pending command if one has been started. */
3963 obstack_1grow (&obstack, 0);
3964 string = obstack_finish (&obstack);
3965 if (this_is_library_file)
3966 string = find_file (string);
3967 store_arg (string, delete_this_arg, this_is_output_file);
3968 if (this_is_output_file)
3969 outfiles[input_file_number] = string;
3973 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3975 for (i = 0; i < n_switches; i++)
3976 if (!strcmp (switches[i].part1, "pipe"))
3979 /* A `|' before the newline means use a pipe here,
3980 but only if -pipe was specified.
3981 Otherwise, execute now and don't pass the `|' as an arg. */
3984 input_from_pipe = 1;
3985 switches[i].validated = 1;
3992 if (argbuf_index > 0)
3998 /* Reinitialize for a new command, and for a new argument. */
4001 delete_this_arg = 0;
4002 this_is_output_file = 0;
4003 this_is_library_file = 0;
4004 input_from_pipe = 0;
4008 /* End any pending argument. */
4011 obstack_1grow (&obstack, 0);
4012 string = obstack_finish (&obstack);
4013 if (this_is_library_file)
4014 string = find_file (string);
4015 store_arg (string, delete_this_arg, this_is_output_file);
4016 if (this_is_output_file)
4017 outfiles[input_file_number] = string;
4021 obstack_1grow (&obstack, c);
4027 /* Space or tab ends an argument if one is pending. */
4030 obstack_1grow (&obstack, 0);
4031 string = obstack_finish (&obstack);
4032 if (this_is_library_file)
4033 string = find_file (string);
4034 store_arg (string, delete_this_arg, this_is_output_file);
4035 if (this_is_output_file)
4036 outfiles[input_file_number] = string;
4038 /* Reinitialize for a new argument. */
4040 delete_this_arg = 0;
4041 this_is_output_file = 0;
4042 this_is_library_file = 0;
4049 fatal ("Invalid specification! Bug in cc.");
4052 obstack_grow (&obstack, input_basename, basename_length);
4057 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4062 delete_this_arg = 2;
4065 /* Dump out the directories specified with LIBRARY_PATH,
4066 followed by the absolute directories
4067 that we search for startfiles. */
4070 struct prefix_list *pl = startfile_prefixes.plist;
4071 size_t bufsize = 100;
4072 char *buffer = (char *) xmalloc (bufsize);
4075 for (; pl; pl = pl->next)
4077 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4078 /* Used on systems which record the specified -L dirs
4079 and use them to search for dynamic linking. */
4080 /* Relative directories always come from -B,
4081 and it is better not to use them for searching
4082 at run time. In particular, stage1 loses. */
4083 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4086 /* Try subdirectory if there is one. */
4087 if (multilib_dir != NULL)
4091 if (strlen (pl->prefix) + strlen (machine_suffix)
4093 bufsize = (strlen (pl->prefix)
4094 + strlen (machine_suffix)) * 2 + 1;
4095 buffer = (char *) xrealloc (buffer, bufsize);
4096 strcpy (buffer, pl->prefix);
4097 strcat (buffer, machine_suffix);
4098 if (is_directory (buffer, multilib_dir, 1))
4100 do_spec_1 ("-L", 0, NULL_PTR);
4101 #ifdef SPACE_AFTER_L_OPTION
4102 do_spec_1 (" ", 0, NULL_PTR);
4104 do_spec_1 (buffer, 1, NULL_PTR);
4105 do_spec_1 (multilib_dir, 1, NULL_PTR);
4106 /* Make this a separate argument. */
4107 do_spec_1 (" ", 0, NULL_PTR);
4110 if (!pl->require_machine_suffix)
4112 if (is_directory (pl->prefix, multilib_dir, 1))
4114 do_spec_1 ("-L", 0, NULL_PTR);
4115 #ifdef SPACE_AFTER_L_OPTION
4116 do_spec_1 (" ", 0, NULL_PTR);
4118 do_spec_1 (pl->prefix, 1, NULL_PTR);
4119 do_spec_1 (multilib_dir, 1, NULL_PTR);
4120 /* Make this a separate argument. */
4121 do_spec_1 (" ", 0, NULL_PTR);
4127 if (is_directory (pl->prefix, machine_suffix, 1))
4129 do_spec_1 ("-L", 0, NULL_PTR);
4130 #ifdef SPACE_AFTER_L_OPTION
4131 do_spec_1 (" ", 0, NULL_PTR);
4133 do_spec_1 (pl->prefix, 1, NULL_PTR);
4134 /* Remove slash from machine_suffix. */
4135 if (strlen (machine_suffix) >= bufsize)
4136 bufsize = strlen (machine_suffix) * 2 + 1;
4137 buffer = (char *) xrealloc (buffer, bufsize);
4138 strcpy (buffer, machine_suffix);
4139 idx = strlen (buffer);
4140 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4141 buffer[idx - 1] = 0;
4142 do_spec_1 (buffer, 1, NULL_PTR);
4143 /* Make this a separate argument. */
4144 do_spec_1 (" ", 0, NULL_PTR);
4147 if (!pl->require_machine_suffix)
4149 if (is_directory (pl->prefix, "", 1))
4151 do_spec_1 ("-L", 0, NULL_PTR);
4152 #ifdef SPACE_AFTER_L_OPTION
4153 do_spec_1 (" ", 0, NULL_PTR);
4155 /* Remove slash from pl->prefix. */
4156 if (strlen (pl->prefix) >= bufsize)
4157 bufsize = strlen (pl->prefix) * 2 + 1;
4158 buffer = (char *) xrealloc (buffer, bufsize);
4159 strcpy (buffer, pl->prefix);
4160 idx = strlen (buffer);
4161 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4162 buffer[idx - 1] = 0;
4163 do_spec_1 (buffer, 1, NULL_PTR);
4164 /* Make this a separate argument. */
4165 do_spec_1 (" ", 0, NULL_PTR);
4174 /* %efoo means report an error with `foo' as error message
4175 and don't execute any more commands for this file. */
4179 while (*p != 0 && *p != '\n')
4181 buf = (char *) alloca (p - q + 1);
4182 strncpy (buf, q, p - q);
4189 /* %nfoo means report an notice with `foo' on stderr. */
4193 while (*p != 0 && *p != '\n')
4195 buf = (char *) alloca (p - q + 1);
4196 strncpy (buf, q, p - q);
4198 notice ("%s\n", buf);
4208 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4209 and it is not a directory, and it is writable, use it.
4210 Otherwise, fall through and treat this like any other
4213 if ((!save_temps_flag)
4214 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4215 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4217 obstack_grow (&obstack, HOST_BIT_BUCKET,
4218 strlen (HOST_BIT_BUCKET));
4219 delete_this_arg = 0;
4227 if (save_temps_flag)
4229 obstack_grow (&obstack, input_basename, basename_length);
4230 delete_this_arg = 0;
4234 struct temp_name *t;
4236 const char *suffix = p;
4237 char *saved_suffix = NULL;
4239 while (*p == '.' || ISALPHA ((unsigned char) *p))
4241 suffix_length = p - suffix;
4242 if (p[0] == '%' && p[1] == 'O')
4245 /* We don't support extra suffix characters after %O. */
4246 if (*p == '.' || ISALPHA ((unsigned char) *p))
4248 if (suffix_length == 0)
4249 suffix = OBJECT_SUFFIX;
4253 = (char *) xmalloc (suffix_length
4254 + strlen (OBJECT_SUFFIX));
4255 strncpy (saved_suffix, suffix, suffix_length);
4256 strcpy (saved_suffix + suffix_length,
4259 suffix_length += strlen (OBJECT_SUFFIX);
4262 /* See if we already have an association of %g/%u/%U and
4264 for (t = temp_names; t; t = t->next)
4265 if (t->length == suffix_length
4266 && strncmp (t->suffix, suffix, suffix_length) == 0
4267 && t->unique == (c != 'g'))
4270 /* Make a new association if needed. %u and %j require one. */
4271 if (t == 0 || c == 'u' || c == 'j')
4275 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4276 t->next = temp_names;
4279 t->length = suffix_length;
4280 t->suffix = save_string (suffix, suffix_length);
4281 t->unique = (c != 'g');
4282 temp_filename = make_temp_file (t->suffix);
4283 temp_filename_length = strlen (temp_filename);
4284 t->filename = temp_filename;
4285 t->filename_length = temp_filename_length;
4289 free (saved_suffix);
4291 obstack_grow (&obstack, t->filename, t->filename_length);
4292 delete_this_arg = 1;
4298 obstack_grow (&obstack, input_filename, input_filename_length);
4304 struct prefix_list *pl = include_prefixes.plist;
4306 if (gcc_exec_prefix)
4308 do_spec_1 ("-iprefix", 1, NULL_PTR);
4309 /* Make this a separate argument. */
4310 do_spec_1 (" ", 0, NULL_PTR);
4311 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4312 do_spec_1 (" ", 0, NULL_PTR);
4315 for (; pl; pl = pl->next)
4317 do_spec_1 ("-isystem", 1, NULL_PTR);
4318 /* Make this a separate argument. */
4319 do_spec_1 (" ", 0, NULL_PTR);
4320 do_spec_1 (pl->prefix, 1, NULL_PTR);
4321 do_spec_1 (" ", 0, NULL_PTR);
4328 int max = n_infiles;
4329 max += lang_specific_extra_outfiles;
4331 for (i = 0; i < max; i++)
4333 store_arg (outfiles[i], 0, 0);
4338 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4343 this_is_library_file = 1;
4347 this_is_output_file = 1;
4352 int cur_index = argbuf_index;
4353 /* Handle the {...} following the %W. */
4356 p = handle_braces (p + 1);
4359 /* If any args were output, mark the last one for deletion
4361 if (argbuf_index != cur_index)
4362 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4366 /* %x{OPTION} records OPTION for %X to output. */
4372 /* Skip past the option value and make a copy. */
4377 string = save_string (p1 + 1, p - p1 - 2);
4379 /* See if we already recorded this option. */
4380 for (i = 0; i < n_linker_options; i++)
4381 if (! strcmp (string, linker_options[i]))
4387 /* This option is new; add it. */
4388 add_linker_option (string, strlen (string));
4392 /* Dump out the options accumulated previously using %x. */
4394 for (i = 0; i < n_linker_options; i++)
4396 do_spec_1 (linker_options[i], 1, NULL_PTR);
4397 /* Make each accumulated option a separate argument. */
4398 do_spec_1 (" ", 0, NULL_PTR);
4402 /* Dump out the options accumulated previously using -Wa,. */
4404 for (i = 0; i < n_assembler_options; i++)
4406 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4407 /* Make each accumulated option a separate argument. */
4408 do_spec_1 (" ", 0, NULL_PTR);
4412 /* Dump out the options accumulated previously using -Wp,. */
4414 for (i = 0; i < n_preprocessor_options; i++)
4416 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4417 /* Make each accumulated option a separate argument. */
4418 do_spec_1 (" ", 0, NULL_PTR);
4422 /* Here are digits and numbers that just process
4423 a certain constant string as a spec. */
4426 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4432 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4438 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4444 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4450 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4458 = (input_file_compiler->cpp_spec
4459 ? input_file_compiler->cpp_spec
4461 value = do_spec_1 (spec, 0, NULL_PTR);
4468 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4474 value = do_spec_1 (link_spec, 0, NULL_PTR);
4480 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4486 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4492 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4498 len = strlen (multilib_dir);
4499 obstack_blank (&obstack, len + 1);
4500 p = obstack_next_free (&obstack) - (len + 1);
4503 for (q = multilib_dir; *q ; ++q, ++p)
4504 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4510 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4514 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4518 if (! strncmp (y, "-D", 2))
4519 /* Copy the whole option. */
4520 while (*y && *y != ' ' && *y != '\t')
4522 else if (*y == ' ' || *y == '\t')
4523 /* Copy whitespace to the result. */
4525 /* Don't copy other options. */
4532 value = do_spec_1 (buf, 0, NULL_PTR);
4540 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4544 /* Copy all of CPP_PREDEFINES into BUF,
4545 but force them all into the reserved name space if they
4546 aren't already there. The reserved name space is all
4547 identifiers beginning with two underscores or with one
4548 underscore and a capital letter. We do the forcing by
4549 adding up to two underscores to the beginning and end
4550 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4555 if (! strncmp (y, "-D", 2))
4564 && ! ISUPPER ((unsigned char) *(y + 1))))
4566 /* Stick __ at front of macro name. */
4570 /* Arrange to stick __ at the end as well. */
4574 /* Copy the macro name. */
4575 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4588 /* Copy the value given, if any. */
4589 while (*y && *y != ' ' && *y != '\t')
4592 else if (*y == ' ' || *y == '\t')
4593 /* Copy whitespace to the result. */
4595 /* Don't copy -A options */
4601 /* Copy all of CPP_PREDEFINES into BUF,
4602 but put __ after every -D. */
4606 if (! strncmp (y, "-D", 2))
4612 && ! ISUPPER ((unsigned char) *(y + 1))))
4614 /* Stick -D__ at front of macro name. */
4621 /* Copy the macro name. */
4622 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4625 /* Copy the value given, if any. */
4626 while (*y && *y != ' ' && *y != '\t')
4631 /* Do not copy this macro - we have just done it before */
4632 while (*y && *y != ' ' && *y != '\t')
4636 else if (*y == ' ' || *y == '\t')
4637 /* Copy whitespace to the result. */
4639 /* Don't copy -A options. */
4645 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4649 if (! strncmp (y, "-A", 2))
4650 /* Copy the whole option. */
4651 while (*y && *y != ' ' && *y != '\t')
4653 else if (*y == ' ' || *y == '\t')
4654 /* Copy whitespace to the result. */
4656 /* Don't copy other options. */
4663 value = do_spec_1 (buf, 0, NULL_PTR);
4670 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4675 /* Here we define characters other than letters and digits. */
4678 p = handle_braces (p);
4684 obstack_1grow (&obstack, '%');
4691 while (p[len] && p[len] != ' ' && p[len] != '%')
4693 suffix_subst = save_string (p - 1, len + 1);
4699 if (soft_matched_part)
4701 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4702 do_spec_1 (" ", 0, NULL_PTR);
4705 /* Catch the case where a spec string contains something like
4706 '%{foo:%*}'. ie there is no * in the pattern on the left
4707 hand side of the :. */
4708 error ("Spec failure: '%%*' has not been initialised by pattern match");
4711 /* Process a string found as the value of a spec given by name.
4712 This feature allows individual machine descriptions
4713 to add and use their own specs.
4714 %[...] modifies -D options the way %P does;
4715 %(...) uses the spec unmodified. */
4717 error ("Warning: use of obsolete %%[ operator in specs");
4720 const char *name = p;
4721 struct spec_list *sl;
4724 /* The string after the S/P is the name of a spec that is to be
4726 while (*p && *p != ')' && *p != ']')
4729 /* See if it's in the list. */
4730 for (len = p - name, sl = specs; sl; sl = sl->next)
4731 if (sl->name_len == len && !strncmp (sl->name, name, len))
4733 name = *(sl->ptr_spec);
4735 notice ("Processing spec %c%s%c, which is '%s'\n",
4736 c, sl->name, (c == '(') ? ')' : ']', name);
4745 value = do_spec_1 (name, 0, NULL_PTR);
4751 char *x = (char *) alloca (strlen (name) * 2 + 1);
4753 const char *y = name;
4756 /* Copy all of NAME into BUF, but put __ after
4757 every -D and at the end of each arg. */
4760 if (! strncmp (y, "-D", 2))
4771 && (*y == ' ' || *y == '\t' || *y == '='
4772 || *y == '}' || *y == 0))
4785 value = do_spec_1 (buf, 0, NULL_PTR);
4791 /* Discard the closing paren or bracket. */
4799 int c1 = *p++; /* Select first or second version number. */
4800 const char *v = compiler_version;
4802 static const char zeroc = '0';
4804 /* The format of the version string is
4805 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4807 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4808 while (! ISDIGIT (*v))
4810 if (v > compiler_version && v[-1] != '-')
4813 /* If desired, advance to second version number. */
4816 /* Set V after the first period. */
4817 while (ISDIGIT (*v))
4824 /* If desired, advance to third version number.
4825 But don't complain if it's not present */
4828 /* Set V after the second period. */
4829 while (ISDIGIT (*v))
4831 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4837 /* Set Q at the next period or at the end. */
4839 while (ISDIGIT (*q))
4841 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4845 /* Put that part into the command. */
4846 obstack_grow (&obstack, v, q - v);
4848 /* Default to "0" */
4849 obstack_grow (&obstack, &zeroc, 1);
4855 if (input_from_pipe)
4856 do_spec_1 ("-", 0, NULL_PTR);
4860 error ("Spec failure: Unrecognised spec option '%c'", c);
4866 /* Backslash: treat next character as ordinary. */
4871 /* Ordinary character: put it into the current argument. */
4872 obstack_1grow (&obstack, c);
4876 /* End of string. */
4880 /* Return 0 if we call do_spec_1 and that returns -1. */
4884 register const char *p;
4886 const char *filter, *body = NULL, *endbody = NULL;
4888 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4891 int include_blanks = 1;
4892 int elide_switch = 0;
4897 /* A '^' after the open-brace means to not give blanks before args. */
4904 /* A `|' after the open-brace means,
4905 if the test fails, output a single minus sign rather than nothing.
4906 This is used in %{|!pipe:...}. */
4913 /* A `<' after the open-brace means that the switch should be
4914 removed from the command-line. */
4920 negate = suffix = 0;
4923 /* A `!' after the open-brace negates the condition:
4924 succeed if the specified switch is not present. */
4928 /* A `.' after the open-brace means test against the current suffix. */
4937 if (elide_switch && (negate || pipe_p || suffix))
4939 /* It doesn't make sense to mix elision with other flags. We
4940 could fatal() here, but the standard seems to be to abort. */
4946 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
4949 if (*p == '|' && (pipe_p || ordered))
4954 if (*p != '}' && *p != '&')
4956 register int count = 1;
4957 register const char *q = p;
4976 body = p, endbody = p + 1;
4981 int found = (input_suffix != 0
4982 && (long) strlen (input_suffix) == (long) (p - filter)
4983 && strncmp (input_suffix, filter, p - filter) == 0);
4989 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4992 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
4994 /* Substitute all matching switches as separate args. */
4997 for (i = 0; i < n_switches; i++)
4998 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
4999 && check_live_switch (i, p - 1 - filter))
5003 switches[i].live_cond = SWITCH_IGNORE;
5004 switches[i].validated = 1;
5007 ordered = 1, switches[i].ordering = 1;
5012 /* Test for presence of the specified switch. */
5016 /* If name specified ends in *, as in {x*:...},
5017 check for %* and handle that case. */
5018 if (p[-1] == '*' && !negate)
5021 const char *r = body;
5023 /* First see whether we have %*. */
5027 if (*r == '%' && r[1] == '*')
5031 /* If we do, handle that case. */
5034 /* Substitute all matching switches as separate args.
5035 But do this by substituting for %*
5036 in the text that follows the colon. */
5038 unsigned hard_match_len = p - filter - 1;
5039 char *string = save_string (body, endbody - body - 1);
5041 for (i = 0; i < n_switches; i++)
5042 if (!strncmp (switches[i].part1, filter, hard_match_len)
5043 && check_live_switch (i, -1))
5045 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5046 /* Pass any arguments this switch has. */
5047 give_switch (i, 1, 1);
5048 suffix_subst = NULL;
5051 /* We didn't match. Try again. */
5058 /* If name specified ends in *, as in {x*:...},
5059 check for presence of any switch name starting with x. */
5062 for (i = 0; i < n_switches; i++)
5064 unsigned hard_match_len = p - filter - 1;
5066 if (!strncmp (switches[i].part1, filter, hard_match_len)
5067 && check_live_switch (i, hard_match_len))
5074 /* Otherwise, check for presence of exact name specified. */
5077 for (i = 0; i < n_switches; i++)
5079 if (!strncmp (switches[i].part1, filter, p - filter)
5080 && switches[i].part1[p - filter] == 0
5081 && check_live_switch (i, -1))
5089 /* If it is as desired (present for %{s...}, absent for %{!s...})
5090 then substitute either the switch or the specified
5091 conditional text. */
5092 if (present != negate)
5096 switches[i].live_cond = SWITCH_IGNORE;
5097 switches[i].validated = 1;
5099 else if (ordered || *p == '&')
5100 ordered = 1, switches[i].ordering = 1;
5102 give_switch (i, 0, include_blanks);
5104 /* Even if many alternatives are matched, only output once. */
5109 /* Here if a %{|...} conditional fails: output a minus sign,
5110 which means "standard output" or "standard input". */
5111 do_spec_1 ("-", 0, NULL_PTR);
5116 /* We didn't match; try again. */
5123 goto next_ampersand;
5129 /* Doing this set of switches later preserves their command-line
5130 ordering. This is needed for e.g. -U, -D and -A. */
5131 for (i = 0; i < n_switches; i++)
5132 if (switches[i].ordering == 1)
5134 switches[i].ordering = 0;
5135 give_switch (i, 0, include_blanks);
5138 /* Process the spec just once, regardless of match count. */
5141 if (do_spec_1 (save_string (body, endbody - body - 1),
5149 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5150 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5151 spec, or -1 if either exact match or %* is used.
5153 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5154 whose value does not begin with "no-" is obsoleted by the same value
5155 with the "no-", similarly for a switch with the "no-" prefix. */
5158 check_live_switch (switchnum, prefix_length)
5162 const char *name = switches[switchnum].part1;
5165 /* In the common case of {<at-most-one-letter>*}, a negating
5166 switch would always match, so ignore that case. We will just
5167 send the conflicting switches to the compiler phase. */
5168 if (prefix_length >= 0 && prefix_length <= 1)
5171 /* If we already processed this switch and determined if it was
5172 live or not, return our past determination. */
5173 if (switches[switchnum].live_cond != 0)
5174 return switches[switchnum].live_cond > 0;
5176 /* Now search for duplicate in a manner that depends on the name. */
5180 for (i = switchnum + 1; i < n_switches; i++)
5181 if (switches[i].part1[0] == 'O')
5183 switches[switchnum].validated = 1;
5184 switches[switchnum].live_cond = SWITCH_FALSE;
5189 case 'W': case 'f': case 'm':
5190 if (! strncmp (name + 1, "no-", 3))
5192 /* We have Xno-YYY, search for XYYY. */
5193 for (i = switchnum + 1; i < n_switches; i++)
5194 if (switches[i].part1[0] == name[0]
5195 && ! strcmp (&switches[i].part1[1], &name[4]))
5197 switches[switchnum].validated = 1;
5198 switches[switchnum].live_cond = SWITCH_FALSE;
5204 /* We have XYYY, search for Xno-YYY. */
5205 for (i = switchnum + 1; i < n_switches; i++)
5206 if (switches[i].part1[0] == name[0]
5207 && switches[i].part1[1] == 'n'
5208 && switches[i].part1[2] == 'o'
5209 && switches[i].part1[3] == '-'
5210 && !strcmp (&switches[i].part1[4], &name[1]))
5212 switches[switchnum].validated = 1;
5213 switches[switchnum].live_cond = SWITCH_FALSE;
5220 /* Otherwise the switch is live. */
5221 switches[switchnum].live_cond = SWITCH_LIVE;
5225 /* Pass a switch to the current accumulating command
5226 in the same form that we received it.
5227 SWITCHNUM identifies the switch; it is an index into
5228 the vector of switches gcc received, which is `switches'.
5229 This cannot fail since it never finishes a command line.
5231 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5233 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5237 give_switch (switchnum, omit_first_word, include_blanks)
5239 int omit_first_word;
5242 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5245 if (!omit_first_word)
5247 do_spec_1 ("-", 0, NULL_PTR);
5248 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
5251 if (switches[switchnum].args != 0)
5254 for (p = switches[switchnum].args; *p; p++)
5256 const char *arg = *p;
5259 do_spec_1 (" ", 0, NULL_PTR);
5262 unsigned length = strlen (arg);
5264 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5265 if (arg[length] == '.')
5267 ((char *)arg)[length] = 0;
5270 do_spec_1 (arg, 1, NULL_PTR);
5273 ((char *)arg)[length] = '.';
5274 do_spec_1 (suffix_subst, 1, NULL_PTR);
5278 do_spec_1 (arg, 1, NULL_PTR);
5282 do_spec_1 (" ", 0, NULL_PTR);
5283 switches[switchnum].validated = 1;
5286 /* Search for a file named NAME trying various prefixes including the
5287 user's -B prefix and some standard ones.
5288 Return the absolute file name found. If nothing is found, return NAME. */
5296 /* Try multilib_dir if it is defined. */
5297 if (multilib_dir != NULL)
5301 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5302 strcpy (try, multilib_dir);
5303 strcat (try, dir_separator_str);
5306 newname = find_a_file (&startfile_prefixes, try, R_OK);
5308 /* If we don't find it in the multi library dir, then fall
5309 through and look for it in the normal places. */
5310 if (newname != NULL)
5314 newname = find_a_file (&startfile_prefixes, name, R_OK);
5315 return newname ? newname : name;
5318 /* Determine whether a directory exists. If LINKER, return 0 for
5319 certain fixed names not needed by the linker. If not LINKER, it is
5320 only important to return 0 if the host machine has a small ARG_MAX
5324 is_directory (path1, path2, linker)
5329 int len1 = strlen (path1);
5330 int len2 = strlen (path2);
5331 char *path = (char *) alloca (3 + len1 + len2);
5335 #ifndef SMALL_ARG_MAX
5340 /* Construct the path from the two parts. Ensure the string ends with "/.".
5341 The resulting path will be a directory even if the given path is a
5343 memcpy (path, path1, len1);
5344 memcpy (path + len1, path2, len2);
5345 cp = path + len1 + len2;
5346 if (!IS_DIR_SEPARATOR (cp[-1]))
5347 *cp++ = DIR_SEPARATOR;
5351 /* Exclude directories that the linker is known to search. */
5354 && strcmp (path, concat (dir_separator_str, "lib",
5355 dir_separator_str, ".", NULL_PTR)) == 0)
5357 && strcmp (path, concat (dir_separator_str, "usr",
5358 dir_separator_str, "lib",
5359 dir_separator_str, ".", NULL_PTR)) == 0)))
5362 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5365 /* Set up the various global variables to indicate that we're processing
5366 the input file named FILENAME. */
5369 set_input (filename)
5370 const char *filename;
5372 register const char *p;
5374 input_filename = filename;
5375 input_filename_length = strlen (input_filename);
5377 input_basename = input_filename;
5378 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5379 /* Skip drive name so 'x:foo' is handled properly. */
5380 if (input_basename[1] == ':')
5381 input_basename += 2;
5383 for (p = input_basename; *p; p++)
5384 if (IS_DIR_SEPARATOR (*p))
5385 input_basename = p + 1;
5387 /* Find a suffix starting with the last period,
5388 and set basename_length to exclude that suffix. */
5389 basename_length = strlen (input_basename);
5390 suffixed_basename_length = basename_length;
5391 p = input_basename + basename_length;
5392 while (p != input_basename && *p != '.')
5394 if (*p == '.' && p != input_basename)
5396 basename_length = p - input_basename;
5397 input_suffix = p + 1;
5403 /* On fatal signals, delete all the temporary files. */
5406 fatal_error (signum)
5409 signal (signum, SIG_DFL);
5410 delete_failure_queue ();
5411 delete_temp_files ();
5412 /* Get the same signal again, this time not handled,
5413 so its normal effect occurs. */
5414 kill (getpid (), signum);
5417 extern int main PARAMS ((int, const char *const *));
5422 const char *const *argv;
5426 int linker_was_run = 0;
5427 char *explicit_link_files;
5430 struct user_specs *uptr;
5432 p = argv[0] + strlen (argv[0]);
5433 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5437 xmalloc_set_program_name (programname);
5439 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5440 /* Perform host dependant initialization when needed. */
5441 GCC_DRIVER_HOST_INITIALIZATION;
5444 /* LC_CTYPE determines the character set used by the terminal so it has be set
5445 to output messages correctly. */
5447 #ifdef HAVE_LC_MESSAGES
5448 setlocale (LC_CTYPE, "");
5449 setlocale (LC_MESSAGES, "");
5451 setlocale (LC_ALL, "");
5454 (void) bindtextdomain (PACKAGE, localedir);
5455 (void) textdomain (PACKAGE);
5457 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5458 signal (SIGINT, fatal_error);
5460 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5461 signal (SIGHUP, fatal_error);
5463 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5464 signal (SIGTERM, fatal_error);
5466 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5467 signal (SIGPIPE, fatal_error);
5470 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5471 receive the signal. A different setting is inheritable */
5472 signal (SIGCHLD, SIG_DFL);
5476 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5478 obstack_init (&obstack);
5480 /* Build multilib_select, et. al from the separate lines that make up each
5481 multilib selection. */
5483 const char *const *q = multilib_raw;
5486 obstack_init (&multilib_obstack);
5487 while ((p = *q++) != (char *) 0)
5488 obstack_grow (&multilib_obstack, p, strlen (p));
5490 obstack_1grow (&multilib_obstack, 0);
5491 multilib_select = obstack_finish (&multilib_obstack);
5493 q = multilib_matches_raw;
5494 while ((p = *q++) != (char *) 0)
5495 obstack_grow (&multilib_obstack, p, strlen (p));
5497 obstack_1grow (&multilib_obstack, 0);
5498 multilib_matches = obstack_finish (&multilib_obstack);
5500 q = multilib_exclusions_raw;
5501 while ((p = *q++) != (char *) 0)
5502 obstack_grow (&multilib_obstack, p, strlen (p));
5504 obstack_1grow (&multilib_obstack, 0);
5505 multilib_exclusions = obstack_finish (&multilib_obstack);
5508 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5511 obstack_1grow (&multilib_obstack, ' ');
5512 obstack_grow (&multilib_obstack,
5513 multilib_defaults_raw[i],
5514 strlen (multilib_defaults_raw[i]));
5518 obstack_1grow (&multilib_obstack, 0);
5519 multilib_defaults = obstack_finish (&multilib_obstack);
5522 /* Set up to remember the pathname of gcc and any options
5523 needed for collect. We use argv[0] instead of programname because
5524 we need the complete pathname. */
5525 obstack_init (&collect_obstack);
5526 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5527 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5528 putenv (obstack_finish (&collect_obstack));
5530 #ifdef INIT_ENVIRONMENT
5531 /* Set up any other necessary machine specific environment variables. */
5532 putenv (INIT_ENVIRONMENT);
5535 /* Make a table of what switches there are (switches, n_switches).
5536 Make a table of specified input files (infiles, n_infiles).
5537 Decode switches that are handled locally. */
5539 process_command (argc, argv);
5544 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5546 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5547 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5550 for (i = 0; (int) i < n_switches; i++)
5552 const char *const *args;
5555 obstack_grow (&collect_obstack, " ", 1);
5558 obstack_grow (&collect_obstack, "'-", 2);
5559 q = switches[i].part1;
5560 while ((p = strchr (q, '\'')))
5562 obstack_grow (&collect_obstack, q, p - q);
5563 obstack_grow (&collect_obstack, "'\\''", 4);
5566 obstack_grow (&collect_obstack, q, strlen (q));
5567 obstack_grow (&collect_obstack, "'", 1);
5569 for (args = switches[i].args; args && *args; args++)
5571 obstack_grow (&collect_obstack, " '", 2);
5573 while ((p = strchr (q, '\'')))
5575 obstack_grow (&collect_obstack, q, p - q);
5576 obstack_grow (&collect_obstack, "'\\''", 4);
5579 obstack_grow (&collect_obstack, q, strlen (q));
5580 obstack_grow (&collect_obstack, "'", 1);
5583 obstack_grow (&collect_obstack, "\0", 1);
5584 putenv (obstack_finish (&collect_obstack));
5587 /* Initialize the vector of specs to just the default.
5588 This means one element containing 0s, as a terminator. */
5590 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5591 memcpy ((char *) compilers, (char *) default_compilers,
5592 sizeof default_compilers);
5593 n_compilers = n_default_compilers;
5595 /* Read specs from a file if there is one. */
5597 machine_suffix = concat (spec_machine, dir_separator_str,
5598 spec_version, dir_separator_str, NULL_PTR);
5599 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5601 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5602 /* Read the specs file unless it is a default one. */
5603 if (specs_file != 0 && strcmp (specs_file, "specs"))
5604 read_specs (specs_file, TRUE);
5608 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5609 for any override of as, ld and libraries. */
5610 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5611 + strlen (just_machine_suffix)
5612 + sizeof ("specs"));
5614 strcpy (specs_file, standard_exec_prefix);
5615 strcat (specs_file, just_machine_suffix);
5616 strcat (specs_file, "specs");
5617 if (access (specs_file, R_OK) == 0)
5618 read_specs (specs_file, TRUE);
5620 /* If not cross-compiling, look for startfiles in the standard places. */
5621 if (*cross_compile == '0')
5623 if (*md_exec_prefix)
5625 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5626 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5627 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5628 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5631 if (*md_startfile_prefix)
5632 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5633 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5635 if (*md_startfile_prefix_1)
5636 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5637 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5639 /* If standard_startfile_prefix is relative, base it on
5640 standard_exec_prefix. This lets us move the installed tree
5641 as a unit. If GCC_EXEC_PREFIX is defined, base
5642 standard_startfile_prefix on that as well. */
5643 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5644 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5645 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5648 if (gcc_exec_prefix)
5649 add_prefix (&startfile_prefixes,
5650 concat (gcc_exec_prefix, machine_suffix,
5651 standard_startfile_prefix, NULL_PTR),
5652 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5653 add_prefix (&startfile_prefixes,
5654 concat (standard_exec_prefix,
5656 standard_startfile_prefix, NULL_PTR),
5657 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5660 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5661 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5662 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5663 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5664 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5665 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5666 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5671 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5673 add_prefix (&startfile_prefixes,
5674 concat (gcc_exec_prefix, machine_suffix,
5675 standard_startfile_prefix, NULL_PTR),
5676 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5679 /* Process any user specified specs in the order given on the command
5681 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5683 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5684 read_specs (filename ? filename : uptr->filename, FALSE);
5687 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5688 if (gcc_exec_prefix)
5690 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5691 + strlen (spec_version)
5692 + strlen (spec_machine) + 3);
5693 strcpy (temp, gcc_exec_prefix);
5694 strcat (temp, spec_machine);
5695 strcat (temp, dir_separator_str);
5696 strcat (temp, spec_version);
5697 strcat (temp, dir_separator_str);
5698 gcc_exec_prefix = temp;
5701 /* Now we have the specs.
5702 Set the `valid' bits for switches that match anything in any spec. */
5704 validate_all_switches ();
5706 /* Now that we have the switches and the specs, set
5707 the subdirectory based on the options. */
5708 set_multilib_dir ();
5710 /* Warn about any switches that no pass was interested in. */
5712 for (i = 0; (int) i < n_switches; i++)
5713 if (! switches[i].validated)
5714 error ("unrecognized option `-%s'", switches[i].part1);
5716 /* Obey some of the options. */
5718 if (print_search_dirs)
5720 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5721 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5722 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5726 if (print_file_name)
5728 printf ("%s\n", find_file (print_file_name));
5732 if (print_prog_name)
5734 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5735 printf ("%s\n", (newname ? newname : print_prog_name));
5739 if (print_multi_lib)
5741 print_multilib_info ();
5745 if (print_multi_directory)
5747 if (multilib_dir == NULL)
5750 printf ("%s\n", multilib_dir);
5754 if (target_help_flag)
5756 /* Print if any target specific options.*/
5758 /* We do not exit here. Instead we have created a fake input file
5759 called 'target-dummy' which needs to be compiled, and we pass this
5760 on to the various sub-processes, along with the --target-help
5764 if (print_help_list)
5770 printf (_("\nFor bug reporting instructions, please see:\n"));
5771 printf ("%s.\n", GCCBUGURL);
5776 /* We do not exit here. Instead we have created a fake input file
5777 called 'help-dummy' which needs to be compiled, and we pass this
5778 on the the various sub-processes, along with the --help switch. */
5785 notice ("Configured with: %s\n", configuration_arguments);
5787 /* compiler_version is truncated at the first space when initialized
5788 from version string, so truncate version_string at the first space
5789 before comparing. */
5790 for (n = 0; version_string[n]; n++)
5791 if (version_string[n] == ' ')
5794 if (! strncmp (version_string, compiler_version, n)
5795 && compiler_version[n] == 0)
5796 notice ("gcc version %s\n", version_string);
5798 notice ("gcc driver version %s executing gcc version %s\n",
5799 version_string, compiler_version);
5805 if (n_infiles == added_libraries)
5806 fatal ("No input files");
5808 /* Make a place to record the compiler output file names
5809 that correspond to the input files. */
5812 i += lang_specific_extra_outfiles;
5813 outfiles = (const char **) xcalloc (i, sizeof (char *));
5815 /* Record which files were specified explicitly as link input. */
5817 explicit_link_files = xcalloc (1, n_infiles);
5819 for (i = 0; (int) i < n_infiles; i++)
5821 int this_file_error = 0;
5823 /* Tell do_spec what to substitute for %i. */
5825 input_file_number = i;
5826 set_input (infiles[i].name);
5828 /* Use the same thing in %o, unless cp->spec says otherwise. */
5830 outfiles[i] = input_filename;
5832 /* Figure out which compiler from the file's suffix. */
5835 = lookup_compiler (infiles[i].name, input_filename_length,
5836 infiles[i].language);
5838 if (input_file_compiler)
5840 /* Ok, we found an applicable compiler. Run its spec. */
5842 if (input_file_compiler->spec[0] == '#')
5843 error ("%s: %s compiler not installed on this system",
5844 input_filename, &input_file_compiler->spec[1]);
5845 value = do_spec (input_file_compiler->spec);
5847 this_file_error = 1;
5850 /* If this file's name does not contain a recognized suffix,
5851 record it as explicit linker input. */
5854 explicit_link_files[i] = 1;
5856 /* Clear the delete-on-failure queue, deleting the files in it
5857 if this compilation failed. */
5859 if (this_file_error)
5861 delete_failure_queue ();
5864 /* If this compilation succeeded, don't delete those files later. */
5865 clear_failure_queue ();
5868 /* Reset the output file name to the first input file name, for use
5869 with %b in LINK_SPEC on a target that prefers not to emit a.out
5872 set_input (infiles[0].name);
5874 if (error_count == 0)
5876 /* Make sure INPUT_FILE_NUMBER points to first available open
5878 input_file_number = n_infiles;
5879 if (lang_specific_pre_link ())
5883 /* Run ld to link all the compiler output files. */
5885 if (error_count == 0)
5887 int tmp = execution_count;
5889 /* We'll use ld if we can't find collect2. */
5890 if (! strcmp (linker_name_spec, "collect2"))
5892 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5894 linker_name_spec = "ld";
5896 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5898 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5899 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5901 value = do_spec (link_command_spec);
5904 linker_was_run = (tmp != execution_count);
5907 /* If options said don't run linker,
5908 complain about input files to be given to the linker. */
5910 if (! linker_was_run && error_count == 0)
5911 for (i = 0; (int) i < n_infiles; i++)
5912 if (explicit_link_files[i])
5913 error ("%s: linker input file unused because linking not done",
5916 /* Delete some or all of the temporary files we made. */
5919 delete_failure_queue ();
5920 delete_temp_files ();
5922 if (print_help_list)
5924 printf (("\nFor bug reporting instructions, please see:\n"));
5925 printf ("%s\n", GCCBUGURL);
5928 return (signal_count != 0 ? 2
5929 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5933 /* Find the proper compilation spec for the file name NAME,
5934 whose length is LENGTH. LANGUAGE is the specified language,
5935 or 0 if this file is to be passed to the linker. */
5937 static struct compiler *
5938 lookup_compiler (name, length, language)
5941 const char *language;
5943 struct compiler *cp;
5945 /* If this was specified by the user to be a linker input, indicate that. */
5946 if (language != 0 && language[0] == '*')
5949 /* Otherwise, look for the language, if one is spec'd. */
5952 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5953 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5956 error ("language %s not recognized", language);
5960 /* Look for a suffix. */
5961 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5963 if (/* The suffix `-' matches only the file name `-'. */
5964 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5965 || (strlen (cp->suffix) < length
5966 /* See if the suffix matches the end of NAME. */
5967 && !strcmp (cp->suffix,
5968 name + length - strlen (cp->suffix))
5973 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5974 /* look again, but case-insensitively this time. */
5976 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5978 if (/* The suffix `-' matches only the file name `-'. */
5979 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5980 || (strlen (cp->suffix) < length
5981 /* See if the suffix matches the end of NAME. */
5982 && ((!strcmp (cp->suffix,
5983 name + length - strlen (cp->suffix))
5984 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5985 && !strcasecmp (cp->suffix,
5986 name + length - strlen (cp->suffix)))
5992 if (cp >= compilers)
5994 if (cp->spec[0] != '@')
5995 /* A non-alias entry: return it. */
5998 /* An alias entry maps a suffix to a language.
5999 Search for the language; pass 0 for NAME and LENGTH
6000 to avoid infinite recursion if language not found. */
6001 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
6007 save_string (s, len)
6011 register char *result = xmalloc (len + 1);
6013 memcpy (result, s, len);
6019 pfatal_with_name (name)
6022 perror_with_name (name);
6023 delete_temp_files ();
6028 perror_with_name (name)
6031 error ("%s: %s", name, xstrerror (errno));
6035 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6036 const char *errmsg_fmt;
6037 const char *errmsg_arg;
6041 int save_errno = errno;
6043 /* Space for trailing '\0' is in %s. */
6044 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6045 sprintf (msg, errmsg_fmt, errmsg_arg);
6051 pfatal_with_name (errmsg_fmt);
6054 /* Output an error message and exit */
6059 fatal ("Internal gcc abort.");
6062 /* Output an error message and exit */
6065 fatal VPARAMS ((const char *msgid, ...))
6067 #ifndef ANSI_PROTOTYPES
6072 VA_START (ap, msgid);
6074 #ifndef ANSI_PROTOTYPES
6075 msgid = va_arg (ap, const char *);
6078 fprintf (stderr, "%s: ", programname);
6079 vfprintf (stderr, _(msgid), ap);
6081 fprintf (stderr, "\n");
6082 delete_temp_files ();
6087 error VPARAMS ((const char *msgid, ...))
6089 #ifndef ANSI_PROTOTYPES
6094 VA_START (ap, msgid);
6096 #ifndef ANSI_PROTOTYPES
6097 msgid = va_arg (ap, const char *);
6100 fprintf (stderr, "%s: ", programname);
6101 vfprintf (stderr, _(msgid), ap);
6104 fprintf (stderr, "\n");
6108 notice VPARAMS ((const char *msgid, ...))
6110 #ifndef ANSI_PROTOTYPES
6115 VA_START (ap, msgid);
6117 #ifndef ANSI_PROTOTYPES
6118 msgid = va_arg (ap, const char *);
6121 vfprintf (stderr, _(msgid), ap);
6126 validate_all_switches ()
6128 struct compiler *comp;
6129 register const char *p;
6131 struct spec_list *spec;
6133 for (comp = compilers; comp->spec; comp++)
6137 if (c == '%' && *p == '{')
6138 /* We have a switch spec. */
6139 validate_switches (p + 1);
6142 /* Look through the linked list of specs read from the specs file. */
6143 for (spec = specs; spec; spec = spec->next)
6145 p = *(spec->ptr_spec);
6147 if (c == '%' && *p == '{')
6148 /* We have a switch spec. */
6149 validate_switches (p + 1);
6152 p = link_command_spec;
6154 if (c == '%' && *p == '{')
6155 /* We have a switch spec. */
6156 validate_switches (p + 1);
6159 /* Look at the switch-name that comes after START
6160 and mark as valid all supplied switches that match it. */
6163 validate_switches (start)
6166 register const char *p = start;
6183 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6188 else if (p[-1] == '*')
6190 /* Mark all matching switches as valid. */
6191 for (i = 0; i < n_switches; i++)
6192 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6193 switches[i].validated = 1;
6197 /* Mark an exact matching switch as valid. */
6198 for (i = 0; i < n_switches; i++)
6200 if (!strncmp (switches[i].part1, filter, p - filter)
6201 && switches[i].part1[p - filter] == 0)
6202 switches[i].validated = 1;
6206 if (*p++ == '|' || p[-1] == '&')
6210 /* Check whether a particular argument was used. The first time we
6211 canonicalize the switches to keep only the ones we care about. */
6221 const char *replace;
6226 static struct mswitchstr *mswitches;
6227 static int n_mswitches;
6232 struct mswitchstr *matches;
6236 /* Break multilib_matches into the component strings of string
6237 and replacement string. */
6238 for (q = multilib_matches; *q != '\0'; q++)
6243 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6245 q = multilib_matches;
6255 matches[i].len = q - matches[i].str;
6257 matches[i].replace = ++q;
6258 while (*q != ';' && *q != '\0')
6264 matches[i].rep_len = q - matches[i].replace;
6270 /* Now build a list of the replacement string for switches that we care
6271 about. Make sure we allocate at least one entry. This prevents
6272 xmalloc from calling fatal, and prevents us from re-executing this
6275 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6276 * (n_switches ? n_switches : 1));
6277 for (i = 0; i < n_switches; i++)
6279 int xlen = strlen (switches[i].part1);
6280 for (j = 0; j < cnt; j++)
6281 if (xlen == matches[j].len
6282 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6284 mswitches[n_mswitches].str = matches[j].replace;
6285 mswitches[n_mswitches].len = matches[j].rep_len;
6286 mswitches[n_mswitches].replace = (char *) 0;
6287 mswitches[n_mswitches].rep_len = 0;
6294 for (i = 0; i < n_mswitches; i++)
6295 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6302 default_arg (p, len)
6306 const char *start, *end;
6308 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6310 while (*start == ' ' || *start == '\t')
6316 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6319 if ((end - start) == len && strncmp (p, start, len) == 0)
6329 /* Work out the subdirectory to use based on the options. The format of
6330 multilib_select is a list of elements. Each element is a subdirectory
6331 name followed by a list of options followed by a semicolon. The format
6332 of multilib_exclusions is the same, but without the preceding
6333 directory. First gcc will check the exclusions, if none of the options
6334 beginning with an exclamation point are present, and all of the other
6335 options are present, then we will ignore this completely. Passing
6336 that, gcc will consider each multilib_select in turn using the same
6337 rules for matching the options. If a match is found, that subdirectory
6344 unsigned int this_path_len;
6345 const char *this_path, *this_arg;
6349 p = multilib_exclusions;
6352 /* Ignore newlines. */
6359 /* Check the arguments. */
6373 while (*p != ' ' && *p != ';')
6380 if (*this_arg != '!')
6388 ok = used_arg (this_arg, p - this_arg);
6402 p = multilib_select;
6405 /* Ignore newlines. */
6412 /* Get the initial path. */
6420 this_path_len = p - this_path;
6422 /* Check the arguments. */
6437 while (*p != ' ' && *p != ';')
6444 if (*this_arg != '!')
6452 /* If this is a default argument, we can just ignore it.
6453 This is true even if this_arg begins with '!'. Beginning
6454 with '!' does not mean that this argument is necessarily
6455 inappropriate for this library: it merely means that
6456 there is a more specific library which uses this
6457 argument. If this argument is a default, we need not
6458 consider that more specific library. */
6459 if (! default_arg (this_arg, p - this_arg))
6461 ok = used_arg (this_arg, p - this_arg);
6472 if (this_path_len != 1
6473 || this_path[0] != '.')
6475 char *new_multilib_dir = xmalloc (this_path_len + 1);
6476 strncpy (new_multilib_dir, this_path, this_path_len);
6477 new_multilib_dir[this_path_len] = '\0';
6478 multilib_dir = new_multilib_dir;
6487 /* Print out the multiple library subdirectory selection
6488 information. This prints out a series of lines. Each line looks
6489 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6490 required. Only the desired options are printed out, the negative
6491 matches. The options are print without a leading dash. There are
6492 no spaces to make it easy to use the information in the shell.
6493 Each subdirectory is printed only once. This assumes the ordering
6494 generated by the genmultilib script. Also, we leave out ones that match
6498 print_multilib_info ()
6500 const char *p = multilib_select;
6501 const char *last_path = 0, *this_path;
6503 unsigned int last_path_len = 0;
6508 /* Ignore newlines. */
6515 /* Get the initial path. */
6524 /* Check for matches with the multilib_exclusions. We don't bother
6525 with the '!' in either list. If any of the exclusion rules match
6526 all of its options with the select rule, we skip it. */
6528 const char *e = multilib_exclusions;
6529 const char *this_arg;
6534 /* Ignore newlines. */
6541 /* Check the arguments. */
6558 while (*e != ' ' && *e != ';')
6569 int len = e - this_arg;
6576 while (*q != ' ' && *q != ';')
6583 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6584 default_arg (this_arg, e - this_arg))
6614 /* If this is a duplicate, skip it. */
6615 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6616 && ! strncmp (last_path, this_path, last_path_len));
6618 last_path = this_path;
6619 last_path_len = p - this_path;
6622 /* If this directory requires any default arguments, we can skip
6623 it. We will already have printed a directory identical to
6624 this one which does not require that default argument. */
6642 while (*q != ' ' && *q != ';')
6650 && default_arg (arg, q - arg))
6665 for (p1 = last_path; p1 < p; p1++)
6684 use_arg = *p != '!';
6689 while (*p != ' ' && *p != ';')
6704 /* If there are extra options, print them now. */
6705 if (multilib_extra && *multilib_extra)
6707 int print_at = TRUE;
6710 for (q = multilib_extra; *q != '\0'; q++)