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 target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
100 #define TARGET_EXECUTABLE_SUFFIX ""
103 /* By default there is no special suffix for host executables. */
104 #ifdef HOST_EXECUTABLE_SUFFIX
105 #define HAVE_HOST_EXECUTABLE_SUFFIX
107 #define HOST_EXECUTABLE_SUFFIX ""
110 /* By default, the suffix for target object files is ".o". */
111 #ifdef TARGET_OBJECT_SUFFIX
112 #define HAVE_TARGET_OBJECT_SUFFIX
114 #define TARGET_OBJECT_SUFFIX ".o"
118 /* FIXME: the location independence code for VMS is hairier than this,
119 and hasn't been written. */
125 static char dir_separator_str[] = { DIR_SEPARATOR, 0 };
127 #define obstack_chunk_alloc xmalloc
128 #define obstack_chunk_free free
130 #ifndef GET_ENV_PATH_LIST
131 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
134 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
135 #ifndef LIBRARY_PATH_ENV
136 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
140 #define kill(p,s) raise(s)
143 /* If a stage of compilation returns an exit status >= 1,
144 compilation of that file ceases. */
146 #define MIN_FATAL_STATUS 1
148 /* Flag saying to pass the greatest exit code returned by a sub-process
149 to the calling program. */
150 static int pass_exit_codes;
152 /* Definition of string containing the arguments given to configure. */
153 #include "configargs.h"
155 /* Flag saying to print the directories gcc will search through looking for
156 programs, libraries, etc. */
158 static int print_search_dirs;
160 /* Flag saying to print the full filename of this file
161 as found through our usual search mechanism. */
163 static const char *print_file_name = NULL;
165 /* As print_file_name, but search for executable file. */
167 static const char *print_prog_name = NULL;
169 /* Flag saying to print the relative path we'd use to
170 find libgcc.a given the current compiler flags. */
172 static int print_multi_directory;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list;
184 /* Flag indicating whether we should print the command and arguments */
186 static int verbose_flag;
188 /* Flag indicating to print target specific command line options. */
190 static int target_help_flag;
192 /* Flag indicating whether we should report subprocess execution times
193 (if this is supported by the system - see pexecute.c). */
195 static int report_times;
197 /* Nonzero means write "temp" files in source directory
198 and use the source file's name in them, and don't delete them. */
200 static int save_temps_flag;
202 /* The compiler version. */
204 static const char *compiler_version;
206 /* The target version specified with -V */
208 static const char *spec_version = DEFAULT_TARGET_VERSION;
210 /* The target machine specified with -b. */
212 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
214 /* Nonzero if cross-compiling.
215 When -b is used, the value comes from the `specs' file. */
218 static const char *cross_compile = "1";
220 static const char *cross_compile = "0";
223 #ifdef MODIFY_TARGET_NAME
225 /* Information on how to alter the target name based on a command-line
226 switch. The only case we support now is simply appending or deleting a
227 string to or from the end of the first part of the configuration name. */
232 enum add_del {ADD, DELETE} add_del;
235 modify_target[] = MODIFY_TARGET_NAME;
238 /* The number of errors that have occurred; the link phase will not be
239 run if this is non-zero. */
240 static int error_count = 0;
242 /* Greatest exit code of sub-processes that has been encountered up to
244 static int greatest_status = 1;
246 /* This is the obstack which we use to allocate many strings. */
248 static struct obstack obstack;
250 /* This is the obstack to build an environment variable to pass to
251 collect2 that describes all of the relevant switches of what to
252 pass the compiler in building the list of pointers to constructors
255 static struct obstack collect_obstack;
257 /* These structs are used to collect resource usage information for
259 #ifdef HAVE_GETRUSAGE
260 static struct rusage rus, prus;
263 /* Forward declaration for prototypes. */
266 static void init_spec PARAMS ((void));
268 static char **split_directories PARAMS ((const char *, int *));
269 static void free_split_directories PARAMS ((char **));
270 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
272 static void store_arg PARAMS ((const char *, int, int));
273 static char *load_specs PARAMS ((const char *));
274 static void read_specs PARAMS ((const char *, int));
275 static void set_spec PARAMS ((const char *, const char *));
276 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
277 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
278 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
279 static int access_check PARAMS ((const char *, int));
280 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
281 static void add_prefix PARAMS ((struct path_prefix *, const char *,
282 const char *, int, int, int *));
283 static void translate_options PARAMS ((int *, const char *const **));
284 static char *skip_whitespace PARAMS ((char *));
285 static void delete_if_ordinary PARAMS ((const char *));
286 static void delete_temp_files PARAMS ((void));
287 static void delete_failure_queue PARAMS ((void));
288 static void clear_failure_queue PARAMS ((void));
289 static int check_live_switch PARAMS ((int, int));
290 static const char *handle_braces PARAMS ((const char *));
291 static char *save_string PARAMS ((const char *, int));
292 static void set_collect_gcc_options PARAMS ((void));
293 static int do_spec_1 PARAMS ((const char *, int, const char *));
294 static const char *find_file PARAMS ((const char *));
295 static int is_directory PARAMS ((const char *, const char *, int));
296 static void validate_switches PARAMS ((const char *));
297 static void validate_all_switches PARAMS ((void));
298 static void give_switch PARAMS ((int, int, int));
299 static int used_arg PARAMS ((const char *, int));
300 static int default_arg PARAMS ((const char *, int));
301 static void set_multilib_dir PARAMS ((void));
302 static void print_multilib_info PARAMS ((void));
303 static void perror_with_name PARAMS ((const char *));
304 static void pfatal_pexecute PARAMS ((const char *, const char *))
306 static void notice PARAMS ((const char *, ...))
308 static void display_help PARAMS ((void));
309 static void add_preprocessor_option PARAMS ((const char *, int));
310 static void add_assembler_option PARAMS ((const char *, int));
311 static void add_linker_option PARAMS ((const char *, int));
312 static void process_command PARAMS ((int, const char *const *));
313 static int execute PARAMS ((void));
314 static void clear_args PARAMS ((void));
315 static void fatal_error PARAMS ((int));
316 static void init_gcc_specs PARAMS ((struct obstack *,
320 /* The Specs Language
322 Specs are strings containing lines, each of which (if not blank)
323 is made up of a program name, and arguments separated by spaces.
324 The program name must be exact and start from root, since no path
325 is searched and it is unreliable to depend on the current working directory.
326 Redirection of input or output is not supported; the subprograms must
327 accept filenames saying what files to read and write.
329 In addition, the specs can contain %-sequences to substitute variable text
330 or for conditional text. Here is a table of all defined %-sequences.
331 Note that spaces are not generated automatically around the results of
332 expanding these sequences; therefore, you can concatenate them together
333 or with constant text in a single argument.
335 %% substitute one % into the program name or argument.
336 %i substitute the name of the input file being processed.
337 %b substitute the basename of the input file being processed.
338 This is the substring up to (and not including) the last period
339 and not including the directory.
340 %B same as %b, but include the file suffix (text after the last period).
342 substitute a file name that has suffix SUFFIX and is chosen
343 once per compilation, and mark the argument a la %d. To reduce
344 exposure to denial-of-service attacks, the file name is now
345 chosen in a way that is hard to predict even when previously
346 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
347 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
348 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
349 had been pre-processed. Previously, %g was simply substituted
350 with a file name chosen once per compilation, without regard
351 to any appended suffix (which was therefore treated just like
352 ordinary text), making such attacks more likely to succeed.
354 like %g, but generates a new temporary file name even if %uSUFFIX
357 substitutes the last file name generated with %uSUFFIX, generating a
358 new one if there is no such last file name. In the absence of any
359 %uSUFFIX, this is just like %gSUFFIX, except they don't share
360 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
361 would involve the generation of two distinct file names, one
362 for each `%g.s' and another for each `%U.s'. Previously, %U was
363 simply substituted with a file name chosen for the previous %u,
364 without regard to any appended suffix.
366 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
367 writable, and if save-temps is off; otherwise, substitute the name
368 of a temporary file, just like %u. This temporary file is not
369 meant for communication between processes, but rather as a junk
372 substitutes .SUFFIX for the suffixes of a matched switch's args when
373 it is subsequently output with %*. SUFFIX is terminated by the next
375 %d marks the argument containing or following the %d as a
376 temporary file name, so that that file will be deleted if CC exits
377 successfully. Unlike %g, this contributes no text to the argument.
378 %w marks the argument containing or following the %w as the
379 "output file" of this compilation. This puts the argument
380 into the sequence of arguments that %o will substitute later.
382 like %{...} but mark last argument supplied within
383 as a file to be deleted on failure.
384 %o substitutes the names of all the output files, with spaces
385 automatically placed around them. You should write spaces
386 around the %o as well or the results are undefined.
387 %o is for use in the specs for running the linker.
388 Input files whose names have no recognized suffix are not compiled
389 at all, but they are included among the output files, so they will
391 %O substitutes the suffix for object files. Note that this is
392 handled specially when it immediately follows %g, %u, or %U
393 (with or without a suffix argument) because of the need for
394 those to form complete file names. The handling is such that
395 %O is treated exactly as if it had already been substituted,
396 except that %g, %u, and %U do not currently support additional
397 SUFFIX characters following %O as they would following, for
399 %p substitutes the standard macro predefinitions for the
400 current target machine. Use this when running cpp.
401 %P like %p, but puts `__' before and after the name of each macro.
402 (Except macros that already have __.)
404 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
405 %s current argument is the name of a library or startup file of some sort.
406 Search for that file in a standard list of directories
407 and substitute the full name found.
408 %eSTR Print STR as an error message. STR is terminated by a newline.
409 Use this when inconsistent options are detected.
410 %nSTR Print STR as an notice. STR is terminated by a newline.
411 %x{OPTION} Accumulate an option for %X.
412 %X Output the accumulated linker options specified by compilations.
413 %Y Output the accumulated assembler options specified by compilations.
414 %Z Output the accumulated preprocessor options specified by compilations.
415 %v1 Substitute the major version number of GCC.
416 (For version 2.5.3, this is 2.)
417 %v2 Substitute the minor version number of GCC.
418 (For version 2.5.3, this is 5.)
419 %v3 Substitute the patch level number of GCC.
420 (For version 2.5.3, this is 3.)
421 %a process ASM_SPEC as a spec.
422 This allows config.h to specify part of the spec for running as.
423 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
424 used here. This can be used to run a post-processor after the
425 assembler has done its job.
426 %D Dump out a -L option for each directory in startfile_prefixes.
427 If multilib_dir is set, extra entries are generated with it affixed.
428 %l process LINK_SPEC as a spec.
429 %L process LIB_SPEC as a spec.
430 %G process LIBGCC_SPEC as a spec.
431 %M output multilib_dir with directory separators replaced with "_";
432 if multilib_dir is not set or is ".", output "".
433 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
434 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
435 %c process SIGNED_CHAR_SPEC as a spec.
436 %C process CPP_SPEC as a spec.
437 %1 process CC1_SPEC as a spec.
438 %2 process CC1PLUS_SPEC as a spec.
439 %| output "-" if the input for the current command is coming from a pipe.
440 %* substitute the variable part of a matched option. (See below.)
441 Note that each comma in the substituted string is replaced by
443 %{S} substitutes the -S switch, if that switch was given to CC.
444 If that switch was not specified, this substitutes nothing.
445 Here S is a metasyntactic variable.
446 %{S*} substitutes all the switches specified to CC whose names start
447 with -S. This is used for -o, -I, etc; switches that take
448 arguments. CC considers `-o foo' as being one switch whose
449 name starts with `o'. %{o*} would substitute this text,
450 including the space; thus, two arguments would be generated.
451 %{^S*} likewise, but don't put a blank between a switch and any args.
452 %{S*&T*} likewise, but preserve order of S and T options (the order
453 of S and T in the spec is not significant). Can be any number
454 of ampersand-separated variables; for each the wild card is
455 optional. Useful for CPP as %{D*&U*&A*}.
456 %{S*:X} substitutes X if one or more switches whose names start with -S are
457 specified to CC. Note that the tail part of the -S option
458 (i.e. the part matched by the `*') will be substituted for each
459 occurrence of %* within X.
460 %{<S} remove all occurences of -S from the command line.
461 Note - this option is position dependent. % commands in the
462 spec string before this option will see -S, % commands in the
463 spec string after this option will not.
464 %{S:X} substitutes X, but only if the -S switch was given to CC.
465 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
466 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
467 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
468 %{.S:X} substitutes X, but only if processing a file with suffix S.
469 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
470 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
471 combined with ! and . as above binding stronger than the OR.
472 %(Spec) processes a specification defined in a specs file as *Spec:
473 %[Spec] as above, but put __ around -D arguments
475 The conditional text X in a %{S:X} or %{!S:X} construct may contain
476 other nested % constructs or spaces, or even newlines. They are
477 processed as usual, as described above.
479 The -O, -f, -m, and -W switches are handled specifically in these
480 constructs. If another value of -O or the negated form of a -f, -m, or
481 -W switch is found later in the command line, the earlier switch
482 value is ignored, except with {S*} where S is just one letter; this
483 passes all matching options.
485 The character | at the beginning of the predicate text is used to indicate
486 that a command should be piped to the following command, but only if -pipe
489 Note that it is built into CC which switches take arguments and which
490 do not. You might think it would be useful to generalize this to
491 allow each compiler's spec to say which switches take arguments. But
492 this cannot be done in a consistent fashion. CC cannot even decide
493 which input files have been specified without knowing which switches
494 take arguments, and it must know which input files to compile in order
495 to tell which compilers to run.
497 CC also knows implicitly that arguments starting in `-l' are to be
498 treated as compiler output files, and passed to the linker in their
499 proper position among the other output files. */
501 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
503 /* config.h can define ASM_SPEC to provide extra args to the assembler
504 or extra switch-translations. */
509 /* config.h can define ASM_FINAL_SPEC to run a post processor after
510 the assembler has run. */
511 #ifndef ASM_FINAL_SPEC
512 #define ASM_FINAL_SPEC ""
515 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
516 or extra switch-translations. */
521 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
522 or extra switch-translations. */
527 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
528 or extra switch-translations. */
530 #define CC1PLUS_SPEC ""
533 /* config.h can define LINK_SPEC to provide extra args to the linker
534 or extra switch-translations. */
539 /* config.h can define LIB_SPEC to override the default libraries. */
541 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
544 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
547 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
548 /* Have gcc do the search for libgcc.a. */
549 #define LIBGCC_SPEC "libgcc.a%s"
551 #define LIBGCC_SPEC "-lgcc"
555 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
556 #ifndef STARTFILE_SPEC
557 #define STARTFILE_SPEC \
558 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
561 /* config.h can define SWITCHES_NEED_SPACES to control which options
562 require spaces between the option and the argument. */
563 #ifndef SWITCHES_NEED_SPACES
564 #define SWITCHES_NEED_SPACES ""
567 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
569 #define ENDFILE_SPEC ""
572 /* This spec is used for telling cpp whether char is signed or not. */
573 #ifndef SIGNED_CHAR_SPEC
574 /* Use #if rather than ?:
575 because MIPS C compiler rejects like ?: in initializers. */
576 #if DEFAULT_SIGNED_CHAR
577 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
579 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
584 #define LINKER_NAME "collect2"
587 /* Here is the spec for running the linker, after compiling all files. */
589 /* -u* was put back because both BSD and SysV seem to support it. */
590 /* %{static:} simply prevents an error message if the target machine
591 doesn't handle -static. */
592 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
593 scripts which exist in user specified directories, or in standard
595 #ifndef LINK_COMMAND_SPEC
596 #define LINK_COMMAND_SPEC "\
597 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
598 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
599 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
600 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
601 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
604 #ifndef LINK_LIBGCC_SPEC
605 # ifdef LINK_LIBGCC_SPECIAL
606 /* Don't generate -L options for startfile prefix list. */
607 # define LINK_LIBGCC_SPEC ""
609 /* Do generate them. */
610 # define LINK_LIBGCC_SPEC "%D"
614 static const char *cpp_spec = CPP_SPEC;
615 static const char *cpp_predefines = CPP_PREDEFINES;
616 static const char *cc1_spec = CC1_SPEC;
617 static const char *cc1plus_spec = CC1PLUS_SPEC;
618 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
619 static const char *asm_spec = ASM_SPEC;
620 static const char *asm_final_spec = ASM_FINAL_SPEC;
621 static const char *link_spec = LINK_SPEC;
622 static const char *lib_spec = LIB_SPEC;
623 static const char *libgcc_spec = LIBGCC_SPEC;
624 static const char *endfile_spec = ENDFILE_SPEC;
625 static const char *startfile_spec = STARTFILE_SPEC;
626 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
627 static const char *linker_name_spec = LINKER_NAME;
628 static const char *link_command_spec = LINK_COMMAND_SPEC;
629 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
631 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
632 There should be no need to override these in target dependent files,
633 but we need to copy them to the specs file so that newer versions
634 of the GCC driver can correctly drive older tool chains with the
635 appropriate -B options. */
637 static const char *trad_capable_cpp =
638 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
640 static const char *cpp_options =
641 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
642 %{std*} %{nostdinc*}\
643 %{C} %{v} %{I*} %{P} %{$} %I\
644 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
645 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
646 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
647 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
648 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
649 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
650 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
651 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
652 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
653 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
654 %{fshow-column} %{fno-show-column}\
655 %{fleading-underscore} %{fno-leading-underscore}\
656 %{fno-operator-names} %{ftabstop=*} %{remap}\
657 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
660 /* NB: This is shared amongst all front-ends. */
661 static const char *cc1_options =
662 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
663 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
664 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
665 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
666 %{Qn:-fno-ident} %{--help:--help}\
667 %{--target-help:--target-help}\
668 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
669 %{fsyntax-only:-o %j} %{-param*}";
671 static const char *asm_options =
672 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
674 static const char *invoke_as =
675 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
677 /* Some compilers have limits on line lengths, and the multilib_select
678 and/or multilib_matches strings can be very long, so we build them at
680 static struct obstack multilib_obstack;
681 static const char *multilib_select;
682 static const char *multilib_matches;
683 static const char *multilib_defaults;
684 static const char *multilib_exclusions;
685 #include "multilib.h"
687 /* Check whether a particular argument is a default argument. */
689 #ifndef MULTILIB_DEFAULTS
690 #define MULTILIB_DEFAULTS { "" }
693 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
697 struct user_specs *next;
698 const char *filename;
701 static struct user_specs *user_specs_head, *user_specs_tail;
703 /* This defines which switch letters take arguments. */
705 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
706 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
707 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
708 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
709 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
710 || (CHAR) == 'B' || (CHAR) == 'b')
712 #ifndef SWITCH_TAKES_ARG
713 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
716 /* This defines which multi-letter switches take arguments. */
718 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
719 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
720 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
721 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
722 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
723 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
724 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
725 || !strcmp (STR, "specs") \
726 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
728 #ifndef WORD_SWITCH_TAKES_ARG
729 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
732 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
733 /* This defines which switches stop a full compilation. */
734 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
735 ((CHAR) == 'c' || (CHAR) == 'S')
737 #ifndef SWITCH_CURTAILS_COMPILATION
738 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
739 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
743 /* Record the mapping from file suffixes for compilation specs. */
747 const char *suffix; /* Use this compiler for input files
748 whose names end in this suffix. */
750 const char *spec; /* To use this compiler, run this spec. */
752 const char *cpp_spec; /* If non-NULL, substitute this spec
753 for `%C', rather than the usual
757 /* Pointer to a vector of `struct compiler' that gives the spec for
758 compiling a file, based on its suffix.
759 A file that does not end in any of these suffixes will be passed
760 unchanged to the loader and nothing else will be done to it.
762 An entry containing two 0s is used to terminate the vector.
764 If multiple entries match a file, the last matching one is used. */
766 static struct compiler *compilers;
768 /* Number of entries in `compilers', not counting the null terminator. */
770 static int n_compilers;
772 /* The default list of file name suffixes and their compilation specs. */
774 static struct compiler default_compilers[] =
776 /* Add lists of suffixes of known languages here. If those languages
777 were not present when we built the driver, we will hit these copies
778 and be given a more meaningful error than "file not used since
779 linking is not done". */
780 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
781 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
782 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
784 {".ads", "#Ada", 0}, {".adb", "#Ada", 0}, {".ada", "#Ada", 0},
785 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
786 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
787 {".r", "#Ratfor", 0},
788 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
789 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
790 {".java", "#Java", 0}, {".class", "#Java", 0},
791 {".zip", "#Java", 0}, {".jar", "#Java", 0},
792 /* Next come the entries for C. */
795 /* cc1 has an integrated ISO C preprocessor. We should invoke the
796 external preprocessor if -save-temps or -traditional is given. */
797 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
799 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
800 %(cpp_options) %b.i \n\
801 cc1 -fpreprocessed %b.i %(cc1_options)}\
803 %{traditional|ftraditional|traditional-cpp:\
804 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
805 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
806 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
807 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
808 %{!fsyntax-only:%(invoke_as)}}}}", 0},
810 "%{!E:%e-E required when input is from standard input}\
811 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
812 {".h", "@c-header", 0},
814 "%{!E:%eCompilation of header file requested} \
815 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
816 {".i", "@cpp-output", 0},
818 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
819 {".s", "@assembler", 0},
821 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}", 0},
822 {".S", "@assembler-with-cpp", 0},
823 {"@assembler-with-cpp",
824 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
825 %{!M:%{!MM:%{!E:%(invoke_as)}}}", 0},
827 /* Mark end of table */
831 /* Number of elements in default_compilers, not counting the terminator. */
833 static int n_default_compilers
834 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
836 /* A vector of options to give to the linker.
837 These options are accumulated by %x,
838 and substituted into the linker command with %X. */
839 static int n_linker_options;
840 static char **linker_options;
842 /* A vector of options to give to the assembler.
843 These options are accumulated by -Wa,
844 and substituted into the assembler command with %Y. */
845 static int n_assembler_options;
846 static char **assembler_options;
848 /* A vector of options to give to the preprocessor.
849 These options are accumulated by -Wp,
850 and substituted into the preprocessor command with %Z. */
851 static int n_preprocessor_options;
852 static char **preprocessor_options;
854 /* Define how to map long options into short ones. */
856 /* This structure describes one mapping. */
859 /* The long option's name. */
861 /* The equivalent short option. */
862 const char *equivalent;
863 /* Argument info. A string of flag chars; NULL equals no options.
864 a => argument required.
865 o => argument optional.
866 j => join argument to equivalent, making one word.
867 * => require other text after NAME as an argument. */
868 const char *arg_info;
871 /* This is the table of mappings. Mappings are tried sequentially
872 for each option encountered; the first one that matches, wins. */
874 struct option_map option_map[] =
876 {"--all-warnings", "-Wall", 0},
877 {"--ansi", "-ansi", 0},
878 {"--assemble", "-S", 0},
879 {"--assert", "-A", "a"},
880 {"--classpath", "-fclasspath=", "aj"},
881 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
882 {"--comments", "-C", 0},
883 {"--compile", "-c", 0},
884 {"--debug", "-g", "oj"},
885 {"--define-macro", "-D", "aj"},
886 {"--dependencies", "-M", 0},
887 {"--dump", "-d", "a"},
888 {"--dumpbase", "-dumpbase", "a"},
889 {"--entry", "-e", 0},
890 {"--extra-warnings", "-W", 0},
891 {"--for-assembler", "-Wa", "a"},
892 {"--for-linker", "-Xlinker", "a"},
893 {"--force-link", "-u", "a"},
894 {"--imacros", "-imacros", "a"},
895 {"--include", "-include", "a"},
896 {"--include-barrier", "-I-", 0},
897 {"--include-directory", "-I", "aj"},
898 {"--include-directory-after", "-idirafter", "a"},
899 {"--include-prefix", "-iprefix", "a"},
900 {"--include-with-prefix", "-iwithprefix", "a"},
901 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
902 {"--include-with-prefix-after", "-iwithprefix", "a"},
903 {"--language", "-x", "a"},
904 {"--library-directory", "-L", "a"},
905 {"--machine", "-m", "aj"},
906 {"--machine-", "-m", "*j"},
907 {"--no-line-commands", "-P", 0},
908 {"--no-precompiled-includes", "-noprecomp", 0},
909 {"--no-standard-includes", "-nostdinc", 0},
910 {"--no-standard-libraries", "-nostdlib", 0},
911 {"--no-warnings", "-w", 0},
912 {"--optimize", "-O", "oj"},
913 {"--output", "-o", "a"},
914 {"--output-class-directory", "-foutput-class-dir=", "ja"},
915 {"--param", "--param", "a"},
916 {"--pedantic", "-pedantic", 0},
917 {"--pedantic-errors", "-pedantic-errors", 0},
918 {"--pipe", "-pipe", 0},
919 {"--prefix", "-B", "a"},
920 {"--preprocess", "-E", 0},
921 {"--print-search-dirs", "-print-search-dirs", 0},
922 {"--print-file-name", "-print-file-name=", "aj"},
923 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
924 {"--print-missing-file-dependencies", "-MG", 0},
925 {"--print-multi-lib", "-print-multi-lib", 0},
926 {"--print-multi-directory", "-print-multi-directory", 0},
927 {"--print-prog-name", "-print-prog-name=", "aj"},
928 {"--profile", "-p", 0},
929 {"--profile-blocks", "-a", 0},
930 {"--quiet", "-q", 0},
931 {"--save-temps", "-save-temps", 0},
932 {"--shared", "-shared", 0},
933 {"--silent", "-q", 0},
934 {"--specs", "-specs=", "aj"},
935 {"--static", "-static", 0},
936 {"--std", "-std=", "aj"},
937 {"--symbolic", "-symbolic", 0},
938 {"--target", "-b", "a"},
939 {"--time", "-time", 0},
940 {"--trace-includes", "-H", 0},
941 {"--traditional", "-traditional", 0},
942 {"--traditional-cpp", "-traditional-cpp", 0},
943 {"--trigraphs", "-trigraphs", 0},
944 {"--undefine-macro", "-U", "aj"},
945 {"--use-version", "-V", "a"},
946 {"--user-dependencies", "-MM", 0},
947 {"--verbose", "-v", 0},
948 {"--version", "-dumpversion", 0},
949 {"--warn-", "-W", "*j"},
950 {"--write-dependencies", "-MD", 0},
951 {"--write-user-dependencies", "-MMD", 0},
956 #ifdef TARGET_OPTION_TRANSLATE_TABLE
958 const char *option_found;
959 const char *replacements;
960 } target_option_translations[] =
962 TARGET_OPTION_TRANSLATE_TABLE,
967 /* Translate the options described by *ARGCP and *ARGVP.
968 Make a new vector and store it back in *ARGVP,
969 and store its length in *ARGVC. */
972 translate_options (argcp, argvp)
974 const char *const **argvp;
978 const char *const *argv = *argvp;
979 int newvsize = (argc + 2) * 2 * sizeof (const char *);
981 (const char **) xmalloc (newvsize);
985 newv[newindex++] = argv[i++];
989 #ifdef TARGET_OPTION_TRANSLATE_TABLE
993 target_option_translations[tott_idx].option_found;
996 if (strcmp (target_option_translations[tott_idx].option_found,
1003 for (sp = target_option_translations[tott_idx].replacements;
1010 newvsize += spaces * sizeof (const char *);
1011 newv = (const char **) xrealloc (newv, newvsize);
1013 sp = target_option_translations[tott_idx].replacements;
1014 np = (char *) xmalloc (strlen (sp) + 1);
1023 newv[newindex++] = np;
1024 while (*np != ' ' && *np)
1035 if (target_option_translations[tott_idx].option_found)
1039 /* Translate -- options. */
1040 if (argv[i][0] == '-' && argv[i][1] == '-')
1043 /* Find a mapping that applies to this option. */
1044 for (j = 0; j < ARRAY_SIZE (option_map); j++)
1046 size_t optlen = strlen (option_map[j].name);
1047 size_t arglen = strlen (argv[i]);
1048 size_t complen = arglen > optlen ? optlen : arglen;
1049 const char *arginfo = option_map[j].arg_info;
1054 if (!strncmp (argv[i], option_map[j].name, complen))
1056 const char *arg = 0;
1058 if (arglen < optlen)
1061 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
1062 if (strlen (option_map[k].name) >= arglen
1063 && !strncmp (argv[i], option_map[k].name, arglen))
1065 error ("Ambiguous abbreviation %s", argv[i]);
1069 if (k != ARRAY_SIZE (option_map))
1073 if (arglen > optlen)
1075 /* If the option has an argument, accept that. */
1076 if (argv[i][optlen] == '=')
1077 arg = argv[i] + optlen + 1;
1079 /* If this mapping requires extra text at end of name,
1080 accept that as "argument". */
1081 else if (strchr (arginfo, '*') != 0)
1082 arg = argv[i] + optlen;
1084 /* Otherwise, extra text at end means mismatch.
1085 Try other mappings. */
1090 else if (strchr (arginfo, '*') != 0)
1092 error ("Incomplete `%s' option", option_map[j].name);
1096 /* Handle arguments. */
1097 if (strchr (arginfo, 'a') != 0)
1103 error ("Missing argument to `%s' option",
1104 option_map[j].name);
1111 else if (strchr (arginfo, '*') != 0)
1113 else if (strchr (arginfo, 'o') == 0)
1116 error ("Extraneous argument to `%s' option",
1117 option_map[j].name);
1121 /* Store the translation as one argv elt or as two. */
1122 if (arg != 0 && strchr (arginfo, 'j') != 0)
1123 newv[newindex++] = concat (option_map[j].equivalent, arg,
1127 newv[newindex++] = option_map[j].equivalent;
1128 newv[newindex++] = arg;
1131 newv[newindex++] = option_map[j].equivalent;
1139 /* Handle old-fashioned options--just copy them through,
1140 with their arguments. */
1141 else if (argv[i][0] == '-')
1143 const char *p = argv[i] + 1;
1147 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1148 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1149 else if (WORD_SWITCH_TAKES_ARG (p))
1150 nskip += WORD_SWITCH_TAKES_ARG (p);
1151 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1154 else if (! strcmp (p, "Xlinker"))
1157 /* Watch out for an option at the end of the command line that
1158 is missing arguments, and avoid skipping past the end of the
1160 if (nskip + i > argc)
1165 newv[newindex++] = argv[i++];
1170 /* Ordinary operands, or +e options. */
1171 newv[newindex++] = argv[i++];
1186 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1187 be considered whitespace. */
1188 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1190 else if (*p == '\n' || *p == ' ' || *p == '\t')
1204 /* Structures to keep track of prefixes to try when looking for files. */
1208 char *prefix; /* String to prepend to the path. */
1209 struct prefix_list *next; /* Next in linked list. */
1210 int require_machine_suffix; /* Don't use without machine_suffix. */
1211 /* 2 means try both machine_suffix and just_machine_suffix. */
1212 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1213 int priority; /* Sort key - priority within list */
1218 struct prefix_list *plist; /* List of prefixes to try */
1219 int max_len; /* Max length of a prefix in PLIST */
1220 const char *name; /* Name of this list (used in config stuff) */
1223 /* List of prefixes to try when looking for executables. */
1225 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1227 /* List of prefixes to try when looking for startup (crt0) files. */
1229 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1231 /* List of prefixes to try when looking for include files. */
1233 static struct path_prefix include_prefixes = { 0, 0, "include" };
1235 /* Suffix to attach to directories searched for commands.
1236 This looks like `MACHINE/VERSION/'. */
1238 static const char *machine_suffix = 0;
1240 /* Suffix to attach to directories searched for commands.
1241 This is just `MACHINE/'. */
1243 static const char *just_machine_suffix = 0;
1245 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1247 static const char *gcc_exec_prefix;
1249 /* Default prefixes to attach to command names. */
1251 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1252 #undef MD_EXEC_PREFIX
1253 #undef MD_STARTFILE_PREFIX
1254 #undef MD_STARTFILE_PREFIX_1
1257 /* If no prefixes defined, use the null string, which will disable them. */
1258 #ifndef MD_EXEC_PREFIX
1259 #define MD_EXEC_PREFIX ""
1261 #ifndef MD_STARTFILE_PREFIX
1262 #define MD_STARTFILE_PREFIX ""
1264 #ifndef MD_STARTFILE_PREFIX_1
1265 #define MD_STARTFILE_PREFIX_1 ""
1268 /* Supply defaults for the standard prefixes. */
1270 #ifndef STANDARD_EXEC_PREFIX
1271 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1273 #ifndef STANDARD_STARTFILE_PREFIX
1274 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1276 #ifndef TOOLDIR_BASE_PREFIX
1277 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1279 #ifndef STANDARD_BINDIR_PREFIX
1280 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1283 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1284 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1285 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1287 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1288 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1289 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1290 static const char *standard_startfile_prefix_1 = "/lib/";
1291 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1293 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1294 static const char *tooldir_prefix;
1296 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1298 /* Subdirectory to use for locating libraries. Set by
1299 set_multilib_dir based on the compilation options. */
1301 static const char *multilib_dir;
1303 /* Structure to keep track of the specs that have been defined so far.
1304 These are accessed using %(specname) or %[specname] in a compiler
1309 /* The following 2 fields must be first */
1310 /* to allow EXTRA_SPECS to be initialized */
1311 const char *name; /* name of the spec. */
1312 const char *ptr; /* available ptr if no static pointer */
1314 /* The following fields are not initialized */
1315 /* by EXTRA_SPECS */
1316 const char **ptr_spec; /* pointer to the spec itself. */
1317 struct spec_list *next; /* Next spec in linked list. */
1318 int name_len; /* length of the name */
1319 int alloc_p; /* whether string was allocated */
1322 #define INIT_STATIC_SPEC(NAME,PTR) \
1323 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1325 /* List of statically defined specs. */
1326 static struct spec_list static_specs[] =
1328 INIT_STATIC_SPEC ("asm", &asm_spec),
1329 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1330 INIT_STATIC_SPEC ("asm_options", &asm_options),
1331 INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1332 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1333 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1334 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1335 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1336 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1337 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1338 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1339 INIT_STATIC_SPEC ("link", &link_spec),
1340 INIT_STATIC_SPEC ("lib", &lib_spec),
1341 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1342 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1343 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1344 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1345 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1346 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1347 INIT_STATIC_SPEC ("version", &compiler_version),
1348 INIT_STATIC_SPEC ("multilib", &multilib_select),
1349 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1350 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1351 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1352 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1353 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1354 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1355 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1356 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1357 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1360 #ifdef EXTRA_SPECS /* additional specs needed */
1361 /* Structure to keep track of just the first two args of a spec_list.
1362 That is all that the EXTRA_SPECS macro gives us. */
1369 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1370 static struct spec_list *extra_specs = (struct spec_list *) 0;
1373 /* List of dynamically allocates specs that have been defined so far. */
1375 static struct spec_list *specs = (struct spec_list *) 0;
1377 /* Add appropriate libgcc specs to OBSTACK, taking into account
1378 various permutations of -shared-libgcc, -shared, and such. */
1381 init_gcc_specs (obstack, shared_name, static_name)
1382 struct obstack *obstack;
1383 const char *shared_name;
1384 const char *static_name;
1388 /* If we see -shared-libgcc, then use the shared version. */
1389 sprintf (buffer, "%%{shared-libgcc:%s %s}", shared_name, static_name);
1390 obstack_grow (obstack, buffer, strlen (buffer));
1391 /* If we see -static-libgcc, then use the static version. */
1392 sprintf (buffer, "%%{static-libgcc:%s}", static_name);
1393 obstack_grow (obstack, buffer, strlen (buffer));
1394 /* Otherwise, if we see -shared, then use the shared version. */
1396 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s %s}}}",
1397 shared_name, static_name);
1398 obstack_grow (obstack, buffer, strlen (buffer));
1399 /* Otherwise, use the static version. */
1401 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1403 obstack_grow (obstack, buffer, strlen (buffer));
1406 /* Initialize the specs lookup routines. */
1411 struct spec_list *next = (struct spec_list *) 0;
1412 struct spec_list *sl = (struct spec_list *) 0;
1416 return; /* Already initialized. */
1419 notice ("Using builtin specs.\n");
1422 extra_specs = (struct spec_list *)
1423 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1425 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1427 sl = &extra_specs[i];
1428 sl->name = extra_specs_1[i].name;
1429 sl->ptr = extra_specs_1[i].ptr;
1431 sl->name_len = strlen (sl->name);
1432 sl->ptr_spec = &sl->ptr;
1437 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1439 sl = &static_specs[i];
1444 #ifdef ENABLE_SHARED_LIBGCC
1445 /* ??? If neither -shared-libgcc nor --static-libgcc was
1446 seen, then we should be making an educated guess. Some proposed
1447 heuristics for ELF include:
1449 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1450 program will be doing dynamic loading, which will likely
1451 need the shared libgcc.
1453 (2) If "-ldl", then it's also a fair bet that we're doing
1456 (3) For each ET_DYN we're linking against (either through -lfoo
1457 or /some/path/foo.so), check to see whether it or one of
1458 its dependancies depends on a shared libgcc.
1462 If the runtime is fixed to look for program headers instead
1463 of calling __register_frame_info at all, for each object,
1464 use the shared libgcc if any EH symbol referenced.
1466 If crtstuff is fixed to not invoke __register_frame_info
1467 automatically, for each object, use the shared libgcc if
1468 any non-empty unwind section found.
1470 Doing any of this probably requires invoking an external program to
1471 do the actual object file scanning. */
1473 const char *p = libgcc_spec;
1476 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1477 when given the proper command line arguments. */
1480 if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0)
1482 init_gcc_specs (&obstack,
1483 #ifdef NO_SHARED_LIBGCC_MULTILIB
1493 else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0)
1495 /* Ug. We don't know shared library extensions. Hope that
1496 systems that use this form don't do shared libraries. */
1497 init_gcc_specs (&obstack,
1498 #ifdef NO_SHARED_LIBGCC_MULTILIB
1510 obstack_1grow (&obstack, *p);
1511 in_sep = (*p == ' ');
1516 obstack_1grow (&obstack, '\0');
1517 libgcc_spec = obstack_finish (&obstack);
1520 #ifdef USE_AS_TRADITIONAL_FORMAT
1521 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1523 static char tf[] = "--traditional-format ";
1524 obstack_grow (&obstack, tf, sizeof(tf) - 1);
1525 obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
1526 asm_spec = obstack_finish (&obstack);
1533 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1534 removed; If the spec starts with a + then SPEC is added to the end of the
1538 set_spec (name, spec)
1542 struct spec_list *sl;
1543 const char *old_spec;
1544 int name_len = strlen (name);
1547 /* If this is the first call, initialize the statically allocated specs. */
1550 struct spec_list *next = (struct spec_list *) 0;
1551 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1553 sl = &static_specs[i];
1560 /* See if the spec already exists. */
1561 for (sl = specs; sl; sl = sl->next)
1562 if (name_len == sl->name_len && !strcmp (sl->name, name))
1567 /* Not found - make it. */
1568 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1569 sl->name = xstrdup (name);
1570 sl->name_len = name_len;
1571 sl->ptr_spec = &sl->ptr;
1573 *(sl->ptr_spec) = "";
1578 old_spec = *(sl->ptr_spec);
1579 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1580 ? concat (old_spec, spec + 1, NULL)
1585 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1588 /* Free the old spec. */
1589 if (old_spec && sl->alloc_p)
1590 free ((PTR) old_spec);
1595 /* Accumulate a command (program name and args), and run it. */
1597 /* Vector of pointers to arguments in the current line of specifications. */
1599 static const char **argbuf;
1601 /* Number of elements allocated in argbuf. */
1603 static int argbuf_length;
1605 /* Number of elements in argbuf currently in use (containing args). */
1607 static int argbuf_index;
1609 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1610 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1613 static struct temp_name {
1614 const char *suffix; /* suffix associated with the code. */
1615 int length; /* strlen (suffix). */
1616 int unique; /* Indicates whether %g or %u/%U was used. */
1617 const char *filename; /* associated filename. */
1618 int filename_length; /* strlen (filename). */
1619 struct temp_name *next;
1622 /* Number of commands executed so far. */
1624 static int execution_count;
1626 /* Number of commands that exited with a signal. */
1628 static int signal_count;
1630 /* Name with which this program was invoked. */
1632 static const char *programname;
1634 /* Clear out the vector of arguments (after a command is executed). */
1642 /* Add one argument to the vector at the end.
1643 This is done when a space is seen or at the end of the line.
1644 If DELETE_ALWAYS is nonzero, the arg is a filename
1645 and the file should be deleted eventually.
1646 If DELETE_FAILURE is nonzero, the arg is a filename
1647 and the file should be deleted if this compilation fails. */
1650 store_arg (arg, delete_always, delete_failure)
1652 int delete_always, delete_failure;
1654 if (argbuf_index + 1 == argbuf_length)
1656 = (const char **) xrealloc (argbuf,
1657 (argbuf_length *= 2) * sizeof (const char *));
1659 argbuf[argbuf_index++] = arg;
1660 argbuf[argbuf_index] = 0;
1662 if (delete_always || delete_failure)
1663 record_temp_file (arg, delete_always, delete_failure);
1666 /* Load specs from a file name named FILENAME, replacing occurances of
1667 various different types of line-endings, \r\n, \n\r and just \r, with
1671 load_specs (filename)
1672 const char *filename;
1676 struct stat statbuf;
1683 notice ("Reading specs from %s\n", filename);
1685 /* Open and stat the file. */
1686 desc = open (filename, O_RDONLY, 0);
1688 pfatal_with_name (filename);
1689 if (stat (filename, &statbuf) < 0)
1690 pfatal_with_name (filename);
1692 /* Read contents of file into BUFFER. */
1693 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1694 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1696 pfatal_with_name (filename);
1697 buffer[readlen] = 0;
1700 specs = xmalloc (readlen + 1);
1702 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1708 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1710 else if (*(buffer_p + 1) == '\n') /* \r\n */
1724 /* Read compilation specs from a file named FILENAME,
1725 replacing the default ones.
1727 A suffix which starts with `*' is a definition for
1728 one of the machine-specific sub-specs. The "suffix" should be
1729 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1730 The corresponding spec is stored in asm_spec, etc.,
1731 rather than in the `compilers' vector.
1733 Anything invalid in the file is a fatal error. */
1736 read_specs (filename, main_p)
1737 const char *filename;
1743 buffer = load_specs (filename);
1745 /* Scan BUFFER for specs, putting them in the vector. */
1751 char *in, *out, *p1, *p2, *p3;
1753 /* Advance P in BUFFER to the next nonblank nocomment line. */
1754 p = skip_whitespace (p);
1758 /* Is this a special command that starts with '%'? */
1759 /* Don't allow this for the main specs file, since it would
1760 encourage people to overwrite it. */
1761 if (*p == '%' && !main_p)
1764 while (*p && *p != '\n')
1770 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1771 && (p1[sizeof "%include" - 1] == ' '
1772 || p1[sizeof "%include" - 1] == '\t'))
1776 p1 += sizeof ("%include");
1777 while (*p1 == ' ' || *p1 == '\t')
1780 if (*p1++ != '<' || p[-2] != '>')
1781 fatal ("specs %%include syntax malformed after %ld characters",
1782 (long) (p1 - buffer + 1));
1785 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1786 read_specs (new_filename ? new_filename : p1, FALSE);
1789 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1790 && (p1[sizeof "%include_noerr" - 1] == ' '
1791 || p1[sizeof "%include_noerr" - 1] == '\t'))
1795 p1 += sizeof "%include_noerr";
1796 while (*p1 == ' ' || *p1 == '\t')
1799 if (*p1++ != '<' || p[-2] != '>')
1800 fatal ("specs %%include syntax malformed after %ld characters",
1801 (long) (p1 - buffer + 1));
1804 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1806 read_specs (new_filename, FALSE);
1807 else if (verbose_flag)
1808 notice ("Could not find specs file %s\n", p1);
1811 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1812 && (p1[sizeof "%rename" - 1] == ' '
1813 || p1[sizeof "%rename" - 1] == '\t'))
1816 struct spec_list *sl;
1818 /* Get original name */
1819 p1 += sizeof "%rename";
1820 while (*p1 == ' ' || *p1 == '\t')
1823 if (! ISALPHA ((unsigned char) *p1))
1824 fatal ("specs %%rename syntax malformed after %ld characters",
1825 (long) (p1 - buffer));
1828 while (*p2 && !ISSPACE ((unsigned char) *p2))
1831 if (*p2 != ' ' && *p2 != '\t')
1832 fatal ("specs %%rename syntax malformed after %ld characters",
1833 (long) (p2 - buffer));
1837 while (*p2 == ' ' || *p2 == '\t')
1840 if (! ISALPHA ((unsigned char) *p2))
1841 fatal ("specs %%rename syntax malformed after %ld characters",
1842 (long) (p2 - buffer));
1844 /* Get new spec name. */
1846 while (*p3 && !ISSPACE ((unsigned char) *p3))
1850 fatal ("specs %%rename syntax malformed after %ld characters",
1851 (long) (p3 - buffer));
1854 for (sl = specs; sl; sl = sl->next)
1855 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1859 fatal ("specs %s spec was not found to be renamed", p1);
1861 if (strcmp (p1, p2) == 0)
1866 notice ("rename spec %s to %s\n", p1, p2);
1868 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1872 set_spec (p2, *(sl->ptr_spec));
1874 free ((PTR) *(sl->ptr_spec));
1876 *(sl->ptr_spec) = "";
1881 fatal ("specs unknown %% command after %ld characters",
1882 (long) (p1 - buffer));
1885 /* Find the colon that should end the suffix. */
1887 while (*p1 && *p1 != ':' && *p1 != '\n')
1890 /* The colon shouldn't be missing. */
1892 fatal ("specs file malformed after %ld characters",
1893 (long) (p1 - buffer));
1895 /* Skip back over trailing whitespace. */
1897 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1900 /* Copy the suffix to a string. */
1901 suffix = save_string (p, p2 - p);
1902 /* Find the next line. */
1903 p = skip_whitespace (p1 + 1);
1905 fatal ("specs file malformed after %ld characters",
1906 (long) (p - buffer));
1909 /* Find next blank line or end of string. */
1910 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1913 /* Specs end at the blank line and do not include the newline. */
1914 spec = save_string (p, p1 - p);
1917 /* Delete backslash-newline sequences from the spec. */
1922 if (in[0] == '\\' && in[1] == '\n')
1924 else if (in[0] == '#')
1925 while (*in && *in != '\n')
1933 if (suffix[0] == '*')
1935 if (! strcmp (suffix, "*link_command"))
1936 link_command_spec = spec;
1938 set_spec (suffix + 1, spec);
1942 /* Add this pair to the vector. */
1944 = ((struct compiler *)
1945 xrealloc (compilers,
1946 (n_compilers + 2) * sizeof (struct compiler)));
1948 compilers[n_compilers].suffix = suffix;
1949 compilers[n_compilers].spec = spec;
1951 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1955 link_command_spec = spec;
1958 if (link_command_spec == 0)
1959 fatal ("spec file has no spec for linking");
1962 /* Record the names of temporary files we tell compilers to write,
1963 and delete them at the end of the run. */
1965 /* This is the common prefix we use to make temp file names.
1966 It is chosen once for each run of this program.
1967 It is substituted into a spec by %g or %j.
1968 Thus, all temp file names contain this prefix.
1969 In practice, all temp file names start with this prefix.
1971 This prefix comes from the envvar TMPDIR if it is defined;
1972 otherwise, from the P_tmpdir macro if that is defined;
1973 otherwise, in /usr/tmp or /tmp;
1974 or finally the current directory if all else fails. */
1976 static const char *temp_filename;
1978 /* Length of the prefix. */
1980 static int temp_filename_length;
1982 /* Define the list of temporary files to delete. */
1987 struct temp_file *next;
1990 /* Queue of files to delete on success or failure of compilation. */
1991 static struct temp_file *always_delete_queue;
1992 /* Queue of files to delete on failure of compilation. */
1993 static struct temp_file *failure_delete_queue;
1995 /* Record FILENAME as a file to be deleted automatically.
1996 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1997 otherwise delete it in any case.
1998 FAIL_DELETE nonzero means delete it if a compilation step fails;
1999 otherwise delete it in any case. */
2002 record_temp_file (filename, always_delete, fail_delete)
2003 const char *filename;
2007 register char *const name = xstrdup (filename);
2011 register struct temp_file *temp;
2012 for (temp = always_delete_queue; temp; temp = temp->next)
2013 if (! strcmp (name, temp->name))
2016 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2017 temp->next = always_delete_queue;
2019 always_delete_queue = temp;
2026 register struct temp_file *temp;
2027 for (temp = failure_delete_queue; temp; temp = temp->next)
2028 if (! strcmp (name, temp->name))
2031 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
2032 temp->next = failure_delete_queue;
2034 failure_delete_queue = temp;
2040 /* Delete all the temporary files whose names we previously recorded. */
2043 delete_if_ordinary (name)
2050 printf ("Delete %s? (y or n) ", name);
2054 while ((c = getchar ()) != '\n' && c != EOF)
2057 if (i == 'y' || i == 'Y')
2059 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
2060 if (unlink (name) < 0)
2062 perror_with_name (name);
2066 delete_temp_files ()
2068 register struct temp_file *temp;
2070 for (temp = always_delete_queue; temp; temp = temp->next)
2071 delete_if_ordinary (temp->name);
2072 always_delete_queue = 0;
2075 /* Delete all the files to be deleted on error. */
2078 delete_failure_queue ()
2080 register struct temp_file *temp;
2082 for (temp = failure_delete_queue; temp; temp = temp->next)
2083 delete_if_ordinary (temp->name);
2087 clear_failure_queue ()
2089 failure_delete_queue = 0;
2092 /* Build a list of search directories from PATHS.
2093 PREFIX is a string to prepend to the list.
2094 If CHECK_DIR_P is non-zero we ensure the directory exists.
2095 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2096 It is also used by the --print-search-dirs flag. */
2099 build_search_list (paths, prefix, check_dir_p)
2100 struct path_prefix *paths;
2104 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
2106 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
2107 int first_time = TRUE;
2108 struct prefix_list *pprefix;
2110 obstack_grow (&collect_obstack, prefix, strlen (prefix));
2111 obstack_1grow (&collect_obstack, '=');
2113 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
2115 int len = strlen (pprefix->prefix);
2119 || is_directory (pprefix->prefix, machine_suffix, 0)))
2122 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2125 obstack_grow (&collect_obstack, pprefix->prefix, len);
2126 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
2129 if (just_machine_suffix
2130 && pprefix->require_machine_suffix == 2
2132 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
2135 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2138 obstack_grow (&collect_obstack, pprefix->prefix, len);
2139 obstack_grow (&collect_obstack, just_machine_suffix,
2143 if (! pprefix->require_machine_suffix)
2146 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
2149 obstack_grow (&collect_obstack, pprefix->prefix, len);
2153 obstack_1grow (&collect_obstack, '\0');
2154 return obstack_finish (&collect_obstack);
2157 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2161 putenv_from_prefixes (paths, env_var)
2162 struct path_prefix *paths;
2163 const char *env_var;
2165 putenv (build_search_list (paths, env_var, 1));
2170 /* FIXME: the location independence code for VMS is hairier than this,
2171 and hasn't been written. */
2173 /* Split a filename into component directories. */
2176 split_directories (name, ptr_num_dirs)
2185 /* Count the number of directories. Special case MSDOS disk names as part
2186 of the initial directory. */
2188 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2189 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2194 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2196 while ((ch = *p++) != '\0')
2198 if (IS_DIR_SEPARATOR (ch))
2201 while (IS_DIR_SEPARATOR (*p))
2206 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2208 /* Now copy the directory parts. */
2211 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2212 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2214 dirs[num_dirs++] = save_string (p, 3);
2217 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2220 while ((ch = *p++) != '\0')
2222 if (IS_DIR_SEPARATOR (ch))
2224 while (IS_DIR_SEPARATOR (*p))
2227 dirs[num_dirs++] = save_string (q, p - q);
2233 dirs[num_dirs++] = save_string (q, p - 1 - q);
2235 dirs[num_dirs] = NULL;
2237 *ptr_num_dirs = num_dirs;
2242 /* Release storage held by split directories. */
2245 free_split_directories (dirs)
2250 while (dirs[i] != NULL)
2253 free ((char *) dirs);
2256 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2257 to PREFIX starting with the directory portion of PROGNAME and a relative
2258 pathname of the difference between BIN_PREFIX and PREFIX.
2260 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2261 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2262 function will return /red/green/blue/../omega.
2264 If no relative prefix can be found, return NULL. */
2267 make_relative_prefix (progname, bin_prefix, prefix)
2268 const char *progname;
2269 const char *bin_prefix;
2272 char **prog_dirs, **bin_dirs, **prefix_dirs;
2273 int prog_num, bin_num, prefix_num, std_loc_p;
2276 prog_dirs = split_directories (progname, &prog_num);
2277 bin_dirs = split_directories (bin_prefix, &bin_num);
2279 /* If there is no full pathname, try to find the program by checking in each
2280 of the directories specified in the PATH environment variable. */
2285 GET_ENV_PATH_LIST (temp, "PATH");
2288 char *startp, *endp;
2289 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2291 startp = endp = temp;
2294 if (*endp == PATH_SEPARATOR || *endp == 0)
2299 nstore[1] = DIR_SEPARATOR;
2304 strncpy (nstore, startp, endp - startp);
2305 if (! IS_DIR_SEPARATOR (endp[-1]))
2307 nstore[endp - startp] = DIR_SEPARATOR;
2308 nstore[endp - startp + 1] = 0;
2311 nstore[endp - startp] = 0;
2313 strcat (nstore, progname);
2314 if (! access (nstore, X_OK)
2315 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2316 || ! access (strcat (nstore, HOST_EXECUTABLE_SUFFIX), X_OK)
2320 free_split_directories (prog_dirs);
2322 prog_dirs = split_directories (progname, &prog_num);
2328 endp = startp = endp + 1;
2336 /* Remove the program name from comparison of directory names. */
2339 /* Determine if the compiler is installed in the standard location, and if
2340 so, we don't need to specify relative directories. Also, if argv[0]
2341 doesn't contain any directory specifiers, there is not much we can do. */
2343 if (prog_num == bin_num)
2345 for (i = 0; i < bin_num; i++)
2347 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2351 if (prog_num <= 0 || i == bin_num)
2354 free_split_directories (prog_dirs);
2355 free_split_directories (bin_dirs);
2356 prog_dirs = bin_dirs = (char **) 0;
2361 prefix_dirs = split_directories (prefix, &prefix_num);
2363 /* Find how many directories are in common between bin_prefix & prefix. */
2364 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2365 for (common = 0; common < n; common++)
2367 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2371 /* If there are no common directories, there can be no relative prefix. */
2374 free_split_directories (prog_dirs);
2375 free_split_directories (bin_dirs);
2376 free_split_directories (prefix_dirs);
2380 /* Build up the pathnames in argv[0]. */
2381 for (i = 0; i < prog_num; i++)
2382 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2384 /* Now build up the ..'s. */
2385 for (i = common; i < n; i++)
2387 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2388 obstack_1grow (&obstack, DIR_SEPARATOR);
2391 /* Put in directories to move over to prefix. */
2392 for (i = common; i < prefix_num; i++)
2393 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2395 free_split_directories (prog_dirs);
2396 free_split_directories (bin_dirs);
2397 free_split_directories (prefix_dirs);
2399 obstack_1grow (&obstack, '\0');
2400 return obstack_finish (&obstack);
2404 /* Check whether NAME can be accessed in MODE. This is like access,
2405 except that it never considers directories to be executable. */
2408 access_check (name, mode)
2416 if (stat (name, &st) < 0
2417 || S_ISDIR (st.st_mode))
2421 return access (name, mode);
2424 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2425 access to check permissions.
2426 Return 0 if not found, otherwise return its name, allocated with malloc. */
2429 find_a_file (pprefix, name, mode)
2430 struct path_prefix *pprefix;
2435 const char *file_suffix = ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2436 struct prefix_list *pl;
2437 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2439 #ifdef DEFAULT_ASSEMBLER
2440 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2441 return xstrdup (DEFAULT_ASSEMBLER);
2444 #ifdef DEFAULT_LINKER
2445 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2446 return xstrdup (DEFAULT_LINKER);
2450 len += strlen (machine_suffix);
2452 temp = xmalloc (len);
2454 /* Determine the filename to execute (special case for absolute paths). */
2456 if (IS_ABSOLUTE_PATHNAME (name))
2458 if (access (name, mode) == 0)
2460 strcpy (temp, name);
2465 for (pl = pprefix->plist; pl; pl = pl->next)
2469 /* Some systems have a suffix for executable files.
2470 So try appending that first. */
2471 if (file_suffix[0] != 0)
2473 strcpy (temp, pl->prefix);
2474 strcat (temp, machine_suffix);
2475 strcat (temp, name);
2476 strcat (temp, file_suffix);
2477 if (access_check (temp, mode) == 0)
2479 if (pl->used_flag_ptr != 0)
2480 *pl->used_flag_ptr = 1;
2485 /* Now try just the name. */
2486 strcpy (temp, pl->prefix);
2487 strcat (temp, machine_suffix);
2488 strcat (temp, name);
2489 if (access_check (temp, mode) == 0)
2491 if (pl->used_flag_ptr != 0)
2492 *pl->used_flag_ptr = 1;
2497 /* Certain prefixes are tried with just the machine type,
2498 not the version. This is used for finding as, ld, etc. */
2499 if (just_machine_suffix && pl->require_machine_suffix == 2)
2501 /* Some systems have a suffix for executable files.
2502 So try appending that first. */
2503 if (file_suffix[0] != 0)
2505 strcpy (temp, pl->prefix);
2506 strcat (temp, just_machine_suffix);
2507 strcat (temp, name);
2508 strcat (temp, file_suffix);
2509 if (access_check (temp, mode) == 0)
2511 if (pl->used_flag_ptr != 0)
2512 *pl->used_flag_ptr = 1;
2517 strcpy (temp, pl->prefix);
2518 strcat (temp, just_machine_suffix);
2519 strcat (temp, name);
2520 if (access_check (temp, mode) == 0)
2522 if (pl->used_flag_ptr != 0)
2523 *pl->used_flag_ptr = 1;
2528 /* Certain prefixes can't be used without the machine suffix
2529 when the machine or version is explicitly specified. */
2530 if (! pl->require_machine_suffix)
2532 /* Some systems have a suffix for executable files.
2533 So try appending that first. */
2534 if (file_suffix[0] != 0)
2536 strcpy (temp, pl->prefix);
2537 strcat (temp, name);
2538 strcat (temp, file_suffix);
2539 if (access_check (temp, mode) == 0)
2541 if (pl->used_flag_ptr != 0)
2542 *pl->used_flag_ptr = 1;
2547 strcpy (temp, pl->prefix);
2548 strcat (temp, name);
2549 if (access_check (temp, mode) == 0)
2551 if (pl->used_flag_ptr != 0)
2552 *pl->used_flag_ptr = 1;
2562 /* Ranking of prefixes in the sort list. -B prefixes are put before
2565 enum path_prefix_priority
2567 PREFIX_PRIORITY_B_OPT,
2568 PREFIX_PRIORITY_LAST
2571 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2572 order according to PRIORITY. Within each PRIORITY, new entries are
2575 If WARN is nonzero, we will warn if no file is found
2576 through this prefix. WARN should point to an int
2577 which will be set to 1 if this entry is used.
2579 COMPONENT is the value to be passed to update_path.
2581 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2582 the complete value of machine_suffix.
2583 2 means try both machine_suffix and just_machine_suffix. */
2586 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2587 struct path_prefix *pprefix;
2589 const char *component;
2590 /* enum prefix_priority */ int priority;
2591 int require_machine_suffix;
2594 struct prefix_list *pl, **prev;
2597 for (prev = &pprefix->plist;
2598 (*prev) != NULL && (*prev)->priority <= priority;
2599 prev = &(*prev)->next)
2602 /* Keep track of the longest prefix */
2604 prefix = update_path (prefix, component);
2605 len = strlen (prefix);
2606 if (len > pprefix->max_len)
2607 pprefix->max_len = len;
2609 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2610 pl->prefix = save_string (prefix, len);
2611 pl->require_machine_suffix = require_machine_suffix;
2612 pl->used_flag_ptr = warn;
2613 pl->priority = priority;
2617 /* Insert after PREV */
2622 /* Execute the command specified by the arguments on the current line of spec.
2623 When using pipes, this includes several piped-together commands
2624 with `|' between them.
2626 Return 0 if successful, -1 if failed. */
2632 int n_commands; /* # of command. */
2636 const char *prog; /* program name. */
2637 const char **argv; /* vector of args. */
2638 int pid; /* pid of process for this command. */
2641 struct command *commands; /* each command buffer with above info. */
2643 /* Count # of piped commands. */
2644 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2645 if (strcmp (argbuf[i], "|") == 0)
2648 /* Get storage for each command. */
2649 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2651 /* Split argbuf into its separate piped processes,
2652 and record info about each one.
2653 Also search for the programs that are to be run. */
2655 commands[0].prog = argbuf[0]; /* first command. */
2656 commands[0].argv = &argbuf[0];
2657 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2660 commands[0].argv[0] = string;
2662 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2663 if (strcmp (argbuf[i], "|") == 0)
2664 { /* each command. */
2665 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2666 fatal ("-pipe not supported");
2668 argbuf[i] = 0; /* termination of command args. */
2669 commands[n_commands].prog = argbuf[i + 1];
2670 commands[n_commands].argv = &argbuf[i + 1];
2671 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2673 commands[n_commands].argv[0] = string;
2677 argbuf[argbuf_index] = 0;
2679 /* If -v, print what we are about to do, and maybe query. */
2683 /* For help listings, put a blank line between sub-processes. */
2684 if (print_help_list)
2685 fputc ('\n', stderr);
2687 /* Print each piped command as a separate line. */
2688 for (i = 0; i < n_commands; i++)
2690 const char *const *j;
2692 for (j = commands[i].argv; *j; j++)
2693 fprintf (stderr, " %s", *j);
2695 /* Print a pipe symbol after all but the last command. */
2696 if (i + 1 != n_commands)
2697 fprintf (stderr, " |");
2698 fprintf (stderr, "\n");
2702 notice ("\nGo ahead? (y or n) ");
2706 while (getchar () != '\n')
2709 if (i != 'y' && i != 'Y')
2714 /* Run each piped subprocess. */
2716 for (i = 0; i < n_commands; i++)
2718 char *errmsg_fmt, *errmsg_arg;
2719 const char *string = commands[i].argv[0];
2721 /* For some bizarre reason, the second argument of execvp() is
2722 char *const *, not const char *const *. */
2723 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2724 programname, temp_filename,
2725 &errmsg_fmt, &errmsg_arg,
2726 ((i == 0 ? PEXECUTE_FIRST : 0)
2727 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2728 | (string == commands[i].prog
2729 ? PEXECUTE_SEARCH : 0)
2730 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2732 if (commands[i].pid == -1)
2733 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2735 if (string != commands[i].prog)
2736 free ((PTR) string);
2741 /* Wait for all the subprocesses to finish.
2742 We don't care what order they finish in;
2743 we know that N_COMMANDS waits will get them all.
2744 Ignore subprocesses that we don't know about,
2745 since they can be spawned by the process that exec'ed us. */
2749 #ifdef HAVE_GETRUSAGE
2751 double ut = 0.0, st = 0.0;
2754 for (i = 0; i < n_commands;)
2760 pid = pwait (commands[i].pid, &status, 0);
2764 #ifdef HAVE_GETRUSAGE
2767 /* getrusage returns the total resource usage of all children
2768 up to now. Copy the previous values into prus, get the
2769 current statistics, then take the difference. */
2772 getrusage (RUSAGE_CHILDREN, &rus);
2773 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2774 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2775 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2777 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2778 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2779 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2783 for (j = 0; j < n_commands; j++)
2784 if (commands[j].pid == pid)
2787 if (WIFSIGNALED (status))
2790 /* SIGPIPE is a special case. It happens in -pipe mode
2791 when the compiler dies before the preprocessor is
2792 done, or the assembler dies before the compiler is
2793 done. There's generally been an error already, and
2794 this is just fallout. So don't generate another error
2795 unless we would otherwise have succeeded. */
2796 if (WTERMSIG (status) == SIGPIPE
2797 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2802 Internal error: %s (program %s)\n\
2803 Please submit a full bug report.\n\
2804 See %s for instructions.",
2805 strsignal (WTERMSIG (status)), commands[j].prog,
2810 else if (WIFEXITED (status)
2811 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2813 if (WEXITSTATUS (status) > greatest_status)
2814 greatest_status = WEXITSTATUS (status);
2817 #ifdef HAVE_GETRUSAGE
2818 if (report_times && ut + st != 0)
2819 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2828 /* Find all the switches given to us
2829 and make a vector describing them.
2830 The elements of the vector are strings, one per switch given.
2831 If a switch uses following arguments, then the `part1' field
2832 is the switch itself and the `args' field
2833 is a null-terminated vector containing the following arguments.
2834 The `live_cond' field is:
2836 1 if the switch is true in a conditional spec,
2837 -1 if false (overridden by a later switch)
2838 -2 if this switch should be ignored (used in %{<S})
2839 The `validated' field is nonzero if any spec has looked at this switch;
2840 if it remains zero at the end of the run, it must be meaningless. */
2843 #define SWITCH_FALSE -1
2844 #define SWITCH_IGNORE -2
2845 #define SWITCH_LIVE 1
2852 unsigned char validated;
2853 unsigned char ordering;
2856 static struct switchstr *switches;
2858 static int n_switches;
2863 const char *language;
2866 /* Also a vector of input files specified. */
2868 static struct infile *infiles;
2872 /* This counts the number of libraries added by lang_specific_driver, so that
2873 we can tell if there were any user supplied any files or libraries. */
2875 static int added_libraries;
2877 /* And a vector of corresponding output files is made up later. */
2879 const char **outfiles;
2881 /* Used to track if none of the -B paths are used. */
2884 /* Used to track if standard path isn't used and -b or -V is specified. */
2885 static int warn_std;
2887 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2888 static int *warn_std_ptr = 0;
2890 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2892 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2893 is true if we should look for an executable suffix as well. */
2896 convert_filename (name, do_exe)
2906 len = strlen (name);
2908 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2909 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2911 && name[len - 2] == '.'
2912 && name[len - 1] == 'o')
2914 obstack_grow (&obstack, name, len - 2);
2915 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
2916 name = obstack_finish (&obstack);
2920 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2921 /* If there is no filetype, make it the executable suffix (which includes
2922 the "."). But don't get confused if we have just "-o". */
2923 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2926 for (i = len - 1; i >= 0; i--)
2927 if (IS_DIR_SEPARATOR (name[i]))
2930 for (i++; i < len; i++)
2934 obstack_grow (&obstack, name, len);
2935 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
2936 strlen (TARGET_EXECUTABLE_SUFFIX));
2937 name = obstack_finish (&obstack);
2944 /* Display the command line switches accepted by gcc. */
2948 printf (_("Usage: %s [options] file...\n"), programname);
2949 fputs (_("Options:\n"), stdout);
2951 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2952 fputs (_(" --help Display this information\n"), stdout);
2953 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2955 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2956 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2957 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2958 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2959 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2960 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2961 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2962 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2963 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2965 -print-multi-lib Display the mapping between command line options and\n\
2966 multiple library search directories\n"), stdout);
2967 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2968 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2969 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2970 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2971 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2972 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2973 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2974 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2975 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2976 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2977 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2978 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2979 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2980 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2981 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2982 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2983 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2985 -x <language> Specify the language of the following input files\n\
2986 Permissable languages include: c c++ assembler none\n\
2987 'none' means revert to the default behaviour of\n\
2988 guessing the language based on the file's extension\n\
2992 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2993 passed on to the various sub-processes invoked by %s. In order to pass\n\
2994 other options on to these processes the -W<letter> options must be used.\n\
2997 /* The rest of the options are displayed by invocations of the various
3002 add_preprocessor_option (option, len)
3006 n_preprocessor_options++;
3008 if (! preprocessor_options)
3009 preprocessor_options
3010 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
3012 preprocessor_options
3013 = (char **) xrealloc (preprocessor_options,
3014 n_preprocessor_options * sizeof (char *));
3016 preprocessor_options [n_preprocessor_options - 1] =
3017 save_string (option, len);
3021 add_assembler_option (option, len)
3025 n_assembler_options++;
3027 if (! assembler_options)
3029 = (char **) xmalloc (n_assembler_options * sizeof (char *));
3032 = (char **) xrealloc (assembler_options,
3033 n_assembler_options * sizeof (char *));
3035 assembler_options [n_assembler_options - 1] = save_string (option, len);
3039 add_linker_option (option, len)
3045 if (! linker_options)
3047 = (char **) xmalloc (n_linker_options * sizeof (char *));
3050 = (char **) xrealloc (linker_options,
3051 n_linker_options * sizeof (char *));
3053 linker_options [n_linker_options - 1] = save_string (option, len);
3056 /* Create the vector `switches' and its contents.
3057 Store its length in `n_switches'. */
3060 process_command (argc, argv)
3062 const char *const *argv;
3067 const char *spec_lang = 0;
3068 int last_language_n_infiles;
3071 int lang_n_infiles = 0;
3072 #ifdef MODIFY_TARGET_NAME
3073 int is_modify_target_name;
3077 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3081 added_libraries = 0;
3083 /* Figure compiler version from version string. */
3085 compiler_version = temp1 = xstrdup (version_string);
3087 for (; *temp1; ++temp1)
3096 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3097 see if we can create it from the pathname specified in argv[0]. */
3100 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3101 if (!gcc_exec_prefix)
3103 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3104 standard_exec_prefix);
3105 if (gcc_exec_prefix)
3106 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3110 if (gcc_exec_prefix)
3112 int len = strlen (gcc_exec_prefix);
3114 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3115 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3117 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3118 if (IS_DIR_SEPARATOR (*temp)
3119 && strncmp (temp + 1, "lib", 3) == 0
3120 && IS_DIR_SEPARATOR (temp[4])
3121 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3122 len -= sizeof ("/lib/gcc-lib/") - 1;
3125 set_std_prefix (gcc_exec_prefix, len);
3126 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3127 PREFIX_PRIORITY_LAST, 0, NULL);
3128 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3129 PREFIX_PRIORITY_LAST, 0, NULL);
3132 /* COMPILER_PATH and LIBRARY_PATH have values
3133 that are lists of directory names with colons. */
3135 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3138 const char *startp, *endp;
3139 char *nstore = (char *) alloca (strlen (temp) + 3);
3141 startp = endp = temp;
3144 if (*endp == PATH_SEPARATOR || *endp == 0)
3146 strncpy (nstore, startp, endp - startp);
3148 strcpy (nstore, concat (".", dir_separator_str, NULL));
3149 else if (!IS_DIR_SEPARATOR (endp[-1]))
3151 nstore[endp - startp] = DIR_SEPARATOR;
3152 nstore[endp - startp + 1] = 0;
3155 nstore[endp - startp] = 0;
3156 add_prefix (&exec_prefixes, nstore, 0,
3157 PREFIX_PRIORITY_LAST, 0, NULL);
3158 add_prefix (&include_prefixes,
3159 concat (nstore, "include", NULL),
3160 0, PREFIX_PRIORITY_LAST, 0, NULL);
3163 endp = startp = endp + 1;
3170 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3171 if (temp && *cross_compile == '0')
3173 const char *startp, *endp;
3174 char *nstore = (char *) alloca (strlen (temp) + 3);
3176 startp = endp = temp;
3179 if (*endp == PATH_SEPARATOR || *endp == 0)
3181 strncpy (nstore, startp, endp - startp);
3183 strcpy (nstore, concat (".", dir_separator_str, NULL));
3184 else if (!IS_DIR_SEPARATOR (endp[-1]))
3186 nstore[endp - startp] = DIR_SEPARATOR;
3187 nstore[endp - startp + 1] = 0;
3190 nstore[endp - startp] = 0;
3191 add_prefix (&startfile_prefixes, nstore, NULL,
3192 PREFIX_PRIORITY_LAST, 0, NULL);
3195 endp = startp = endp + 1;
3202 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3203 GET_ENV_PATH_LIST (temp, "LPATH");
3204 if (temp && *cross_compile == '0')
3206 const char *startp, *endp;
3207 char *nstore = (char *) alloca (strlen (temp) + 3);
3209 startp = endp = temp;
3212 if (*endp == PATH_SEPARATOR || *endp == 0)
3214 strncpy (nstore, startp, endp - startp);
3216 strcpy (nstore, concat (".", dir_separator_str, NULL));
3217 else if (!IS_DIR_SEPARATOR (endp[-1]))
3219 nstore[endp - startp] = DIR_SEPARATOR;
3220 nstore[endp - startp + 1] = 0;
3223 nstore[endp - startp] = 0;
3224 add_prefix (&startfile_prefixes, nstore, NULL,
3225 PREFIX_PRIORITY_LAST, 0, NULL);
3228 endp = startp = endp + 1;
3235 /* Convert new-style -- options to old-style. */
3236 translate_options (&argc, &argv);
3238 /* Do language-specific adjustment/addition of flags. */
3239 lang_specific_driver (&argc, &argv, &added_libraries);
3241 /* Scan argv twice. Here, the first time, just count how many switches
3242 there will be in their vector, and how many input files in theirs.
3243 Also parse any switches that determine the configuration name, such as -b.
3244 Here we also parse the switches that cc itself uses (e.g. -v). */
3246 for (i = 1; i < argc; i++)
3248 if (! strcmp (argv[i], "-dumpspecs"))
3250 struct spec_list *sl;
3252 for (sl = specs; sl; sl = sl->next)
3253 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3254 if (link_command_spec)
3255 printf ("*link_command:\n%s\n\n", link_command_spec);
3258 else if (! strcmp (argv[i], "-dumpversion"))
3260 printf ("%s\n", spec_version);
3263 else if (! strcmp (argv[i], "-dumpmachine"))
3265 printf ("%s\n", spec_machine);
3268 else if (strcmp (argv[i], "-fhelp") == 0)
3270 /* translate_options () has turned --help into -fhelp. */
3271 print_help_list = 1;
3273 /* We will be passing a dummy file on to the sub-processes. */
3277 add_preprocessor_option ("--help", 6);
3278 add_assembler_option ("--help", 6);
3279 add_linker_option ("--help", 6);
3281 else if (strcmp (argv[i], "-ftarget-help") == 0)
3283 /* translate_options() has turned --target-help into -ftarget-help. */
3284 target_help_flag = 1;
3286 /* We will be passing a dummy file on to the sub-processes. */
3290 add_preprocessor_option ("--target-help", 13);
3291 add_assembler_option ("--target-help", 13);
3292 add_linker_option ("--target-help", 13);
3294 else if (! strcmp (argv[i], "-pass-exit-codes"))
3296 pass_exit_codes = 1;
3299 else if (! strcmp (argv[i], "-print-search-dirs"))
3300 print_search_dirs = 1;
3301 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3302 print_file_name = "libgcc.a";
3303 else if (! strncmp (argv[i], "-print-file-name=", 17))
3304 print_file_name = argv[i] + 17;
3305 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3306 print_prog_name = argv[i] + 17;
3307 else if (! strcmp (argv[i], "-print-multi-lib"))
3308 print_multi_lib = 1;
3309 else if (! strcmp (argv[i], "-print-multi-directory"))
3310 print_multi_directory = 1;
3311 else if (! strncmp (argv[i], "-Wa,", 4))
3314 /* Pass the rest of this option to the assembler. */
3316 /* Split the argument at commas. */
3318 for (j = 4; argv[i][j]; j++)
3319 if (argv[i][j] == ',')
3321 add_assembler_option (argv[i] + prev, j - prev);
3325 /* Record the part after the last comma. */
3326 add_assembler_option (argv[i] + prev, j - prev);
3328 else if (! strncmp (argv[i], "-Wp,", 4))
3331 /* Pass the rest of this option to the preprocessor. */
3333 /* Split the argument at commas. */
3335 for (j = 4; argv[i][j]; j++)
3336 if (argv[i][j] == ',')
3338 add_preprocessor_option (argv[i] + prev, j - prev);
3342 /* Record the part after the last comma. */
3343 add_preprocessor_option (argv[i] + prev, j - prev);
3345 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3346 /* The +e options to the C++ front-end. */
3348 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3351 /* Split the argument at commas. */
3352 for (j = 3; argv[i][j]; j++)
3353 n_infiles += (argv[i][j] == ',');
3355 else if (strcmp (argv[i], "-Xlinker") == 0)
3358 fatal ("argument to `-Xlinker' is missing");
3363 else if (strcmp (argv[i], "-l") == 0)
3366 fatal ("argument to `-l' is missing");
3371 else if (strncmp (argv[i], "-l", 2) == 0)
3373 else if (strcmp (argv[i], "-save-temps") == 0)
3375 save_temps_flag = 1;
3378 else if (strcmp (argv[i], "-specs") == 0)
3380 struct user_specs *user = (struct user_specs *)
3381 xmalloc (sizeof (struct user_specs));
3383 fatal ("argument to `-specs' is missing");
3385 user->next = (struct user_specs *) 0;
3386 user->filename = argv[i];
3387 if (user_specs_tail)
3388 user_specs_tail->next = user;
3390 user_specs_head = user;
3391 user_specs_tail = user;
3393 else if (strncmp (argv[i], "-specs=", 7) == 0)
3395 struct user_specs *user = (struct user_specs *)
3396 xmalloc (sizeof (struct user_specs));
3397 if (strlen (argv[i]) == 7)
3398 fatal ("argument to `-specs=' is missing");
3400 user->next = (struct user_specs *) 0;
3401 user->filename = argv[i] + 7;
3402 if (user_specs_tail)
3403 user_specs_tail->next = user;
3405 user_specs_head = user;
3406 user_specs_tail = user;
3408 else if (strcmp (argv[i], "-time") == 0)
3410 else if (argv[i][0] == '-' && argv[i][1] != 0)
3412 register const char *p = &argv[i][1];
3413 register int c = *p;
3419 if (p[1] == 0 && i + 1 == argc)
3420 fatal ("argument to `-b' is missing");
3422 spec_machine = argv[++i];
3424 spec_machine = p + 1;
3426 warn_std_ptr = &warn_std;
3434 if (p[1] == 0 && i + 1 == argc)
3435 fatal ("argument to `-B' is missing");
3441 len = strlen (value);
3443 /* Catch the case where the user has forgotten to append a
3444 directory seperator to the path. Note, they may be using
3445 -B to add an executable name prefix, eg "i386-elf-", in
3446 order to distinguish between multiple installations of
3447 GCC in the same directory. Hence we must check to see
3448 if appending a directory separator actually makes a
3449 valid directory name. */
3450 if (! IS_DIR_SEPARATOR (value [len - 1])
3451 && is_directory (value, "", 0))
3453 char *tmp = xmalloc (len + 2);
3454 strcpy (tmp, value);
3455 tmp[len] = DIR_SEPARATOR;
3460 /* As a kludge, if the arg is "[foo/]stageN/", just
3461 add "[foo/]include" to the include prefix. */
3464 && (IS_DIR_SEPARATOR (value[len - 8]))))
3465 && strncmp (value + len - 7, "stage", 5) == 0
3466 && ISDIGIT (value[len - 2])
3467 && (IS_DIR_SEPARATOR (value[len - 1])))
3470 add_prefix (&include_prefixes, "include", NULL,
3471 PREFIX_PRIORITY_B_OPT, 0, NULL);
3474 char * string = xmalloc (len + 1);
3476 strncpy (string, value, len - 7);
3477 strcpy (string + len - 7, "include");
3478 add_prefix (&include_prefixes, string, NULL,
3479 PREFIX_PRIORITY_B_OPT, 0, NULL);
3483 add_prefix (&exec_prefixes, value, NULL,
3484 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3485 add_prefix (&startfile_prefixes, value, NULL,
3486 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3487 add_prefix (&include_prefixes, concat (value, "include", NULL),
3488 NULL, PREFIX_PRIORITY_B_OPT, 0, NULL);
3493 case 'v': /* Print our subcommands and print versions. */
3495 /* If they do anything other than exactly `-v', don't set
3496 verbose_flag; rather, continue on to give the error. */
3504 if (p[1] == 0 && i + 1 == argc)
3505 fatal ("argument to `-V' is missing");
3507 spec_version = argv[++i];
3509 spec_version = p + 1;
3510 compiler_version = spec_version;
3511 warn_std_ptr = &warn_std;
3513 /* Validate the version number. Use the same checks
3514 done when inserting it into a spec.
3516 The format of the version string is
3517 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3519 const char *v = compiler_version;
3521 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3522 while (! ISDIGIT (*v))
3525 if (v > compiler_version && v[-1] != '-')
3526 fatal ("invalid version number format");
3528 /* Set V after the first period. */
3529 while (ISDIGIT (*v))
3533 fatal ("invalid version number format");
3536 while (ISDIGIT (*v))
3539 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3540 fatal ("invalid version number format");
3556 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3561 /* Forward scan, just in case -S or -c is specified
3568 if (argv[j][0] == '-')
3570 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3576 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3577 j += skip - (argv[j][2] != 0);
3578 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3585 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3587 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3589 argv[i] = convert_filename (argv[i], ! have_c);
3596 #ifdef MODIFY_TARGET_NAME
3597 is_modify_target_name = 0;
3600 j < sizeof modify_target / sizeof modify_target[0]; j++)
3601 if (! strcmp (argv[i], modify_target[j].sw))
3604 = (char *) xmalloc (strlen (modify_target[j].str)
3605 + strlen (spec_machine));
3608 int made_addition = 0;
3610 is_modify_target_name = 1;
3611 for (p = spec_machine, q = new_name; *p != 0; )
3613 if (modify_target[j].add_del == DELETE
3614 && (! strncmp (q, modify_target[j].str,
3615 strlen (modify_target[j].str))))
3616 p += strlen (modify_target[j].str);
3617 else if (modify_target[j].add_del == ADD
3618 && ! made_addition && *p == '-')
3620 for (r = modify_target[j].str; *r != 0; )
3628 spec_machine = new_name;
3631 if (is_modify_target_name)
3637 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3638 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3639 else if (WORD_SWITCH_TAKES_ARG (p))
3640 i += WORD_SWITCH_TAKES_ARG (p);
3650 if (have_c && have_o && lang_n_infiles > 1)
3651 fatal ("cannot specify -o with -c or -S and multiple compilations");
3653 /* Set up the search paths before we go looking for config files. */
3655 /* These come before the md prefixes so that we will find gcc's subcommands
3656 (such as cpp) rather than those of the host system. */
3657 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3658 as well as trying the machine and the version. */
3660 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3661 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3662 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3663 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3664 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3665 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3668 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3669 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3670 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3671 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3673 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3674 dir_separator_str, NULL);
3676 /* If tooldir is relative, base it on exec_prefixes. A relative
3677 tooldir lets us move the installed tree as a unit.
3679 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3680 directories, so that we can search both the user specified directory
3681 and the standard place. */
3683 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3685 if (gcc_exec_prefix)
3687 char *gcc_exec_tooldir_prefix
3688 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3689 spec_version, dir_separator_str, tooldir_prefix, NULL);
3691 add_prefix (&exec_prefixes,
3692 concat (gcc_exec_tooldir_prefix, "bin",
3693 dir_separator_str, NULL),
3694 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3695 add_prefix (&startfile_prefixes,
3696 concat (gcc_exec_tooldir_prefix, "lib",
3697 dir_separator_str, NULL),
3698 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3701 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3702 dir_separator_str, spec_version,
3703 dir_separator_str, tooldir_prefix, NULL);
3706 add_prefix (&exec_prefixes,
3707 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3708 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3709 add_prefix (&startfile_prefixes,
3710 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3711 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3713 /* More prefixes are enabled in main, after we read the specs file
3714 and determine whether this is cross-compilation or not. */
3716 /* Then create the space for the vectors and scan again. */
3718 switches = ((struct switchstr *)
3719 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3720 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3723 last_language_n_infiles = -1;
3725 /* This, time, copy the text of each switch and store a pointer
3726 to the copy in the vector of switches.
3727 Store all the infiles in their vector. */
3729 for (i = 1; i < argc; i++)
3731 /* Just skip the switches that were handled by the preceding loop. */
3732 #ifdef MODIFY_TARGET_NAME
3733 is_modify_target_name = 0;
3735 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3736 if (! strcmp (argv[i], modify_target[j].sw))
3737 is_modify_target_name = 1;
3739 if (is_modify_target_name)
3743 if (! strncmp (argv[i], "-Wa,", 4))
3745 else if (! strncmp (argv[i], "-Wp,", 4))
3747 else if (! strcmp (argv[i], "-pass-exit-codes"))
3749 else if (! strcmp (argv[i], "-print-search-dirs"))
3751 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3753 else if (! strncmp (argv[i], "-print-file-name=", 17))
3755 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3757 else if (! strcmp (argv[i], "-print-multi-lib"))
3759 else if (! strcmp (argv[i], "-print-multi-directory"))
3761 else if (strcmp (argv[i], "-ftarget-help") == 0)
3763 /* Create a dummy input file, so that we can pass --target-help on to
3764 the various sub-processes. */
3765 infiles[n_infiles].language = "c";
3766 infiles[n_infiles++].name = "target-dummy";
3768 /* Preserve the --target-help switch so that it can be caught by
3769 the cc1 spec string. */
3770 switches[n_switches].part1 = "--target-help";
3771 switches[n_switches].args = 0;
3772 switches[n_switches].live_cond = SWITCH_OK;
3773 switches[n_switches].validated = 0;
3777 else if (strcmp (argv[i], "-fhelp") == 0)
3781 /* Create a dummy input file, so that we can pass --help on to
3782 the various sub-processes. */
3783 infiles[n_infiles].language = "c";
3784 infiles[n_infiles++].name = "help-dummy";
3786 /* Preserve the --help switch so that it can be caught by the
3788 switches[n_switches].part1 = "--help";
3789 switches[n_switches].args = 0;
3790 switches[n_switches].live_cond = SWITCH_OK;
3791 switches[n_switches].validated = 0;
3796 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3798 /* Compensate for the +e options to the C++ front-end;
3799 they're there simply for cfront call-compatibility. We do
3800 some magic in default_compilers to pass them down properly.
3801 Note we deliberately start at the `+' here, to avoid passing
3802 -e0 or -e1 down into the linker. */
3803 switches[n_switches].part1 = &argv[i][0];
3804 switches[n_switches].args = 0;
3805 switches[n_switches].live_cond = SWITCH_OK;
3806 switches[n_switches].validated = 0;
3809 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3812 /* Split the argument at commas. */
3814 for (j = 4; argv[i][j]; j++)
3815 if (argv[i][j] == ',')
3817 infiles[n_infiles].language = "*";
3818 infiles[n_infiles++].name
3819 = save_string (argv[i] + prev, j - prev);
3822 /* Record the part after the last comma. */
3823 infiles[n_infiles].language = "*";
3824 infiles[n_infiles++].name = argv[i] + prev;
3826 else if (strcmp (argv[i], "-Xlinker") == 0)
3828 infiles[n_infiles].language = "*";
3829 infiles[n_infiles++].name = argv[++i];
3831 else if (strcmp (argv[i], "-l") == 0)
3832 { /* POSIX allows separation of -l and the lib arg;
3833 canonicalize by concatenating -l with its arg */
3834 infiles[n_infiles].language = "*";
3835 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3837 else if (strncmp (argv[i], "-l", 2) == 0)
3839 infiles[n_infiles].language = "*";
3840 infiles[n_infiles++].name = argv[i];
3842 else if (strcmp (argv[i], "-specs") == 0)
3844 else if (strncmp (argv[i], "-specs=", 7) == 0)
3846 else if (strcmp (argv[i], "-time") == 0)
3848 else if ((save_temps_flag || report_times)
3849 && strcmp (argv[i], "-pipe") == 0)
3851 /* -save-temps overrides -pipe, so that temp files are produced */
3852 if (save_temps_flag)
3853 error ("Warning: -pipe ignored because -save-temps specified");
3854 /* -time overrides -pipe because we can't get correct stats when
3855 multiple children are running at once. */
3856 else if (report_times)
3857 error ("Warning: -pipe ignored because -time specified");
3859 else if (argv[i][0] == '-' && argv[i][1] != 0)
3861 const char *p = &argv[i][1];
3866 if (p[1] == 0 && i + 1 == argc)
3867 fatal ("argument to `-x' is missing");
3869 spec_lang = argv[++i];
3872 if (! strcmp (spec_lang, "none"))
3873 /* Suppress the warning if -xnone comes after the last input
3874 file, because alternate command interfaces like g++ might
3875 find it useful to place -xnone after each input file. */
3878 last_language_n_infiles = n_infiles;
3881 switches[n_switches].part1 = p;
3882 /* Deal with option arguments in separate argv elements. */
3883 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3884 || WORD_SWITCH_TAKES_ARG (p))
3887 int n_args = WORD_SWITCH_TAKES_ARG (p);
3891 /* Count only the option arguments in separate argv elements. */
3892 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3894 if (i + n_args >= argc)
3895 fatal ("argument to `-%s' is missing", p);
3896 switches[n_switches].args
3897 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3899 switches[n_switches].args[j++] = argv[++i];
3900 /* Null-terminate the vector. */
3901 switches[n_switches].args[j] = 0;
3903 else if (strchr (switches_need_spaces, c))
3905 /* On some systems, ld cannot handle some options without
3906 a space. So split the option from its argument. */
3907 char *part1 = (char *) xmalloc (2);
3912 switches[n_switches].part1 = part1;
3913 switches[n_switches].args
3914 = (const char **) xmalloc (2 * sizeof (const char *));
3915 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3916 strcpy (tmp, &p[1]);
3917 switches[n_switches].args[1] = 0;
3920 switches[n_switches].args = 0;
3922 switches[n_switches].live_cond = SWITCH_OK;
3923 switches[n_switches].validated = 0;
3924 switches[n_switches].ordering = 0;
3925 /* These are always valid, since gcc.c itself understands it. */
3926 if (!strcmp (p, "save-temps")
3927 || !strcmp (p, "static-libgcc")
3928 || !strcmp (p, "shared-libgcc"))
3929 switches[n_switches].validated = 1;
3932 char ch = switches[n_switches].part1[0];
3933 if (ch == 'V' || ch == 'b' || ch == 'B')
3934 switches[n_switches].validated = 1;
3940 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3941 argv[i] = convert_filename (argv[i], 0);
3944 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3946 perror_with_name (argv[i]);
3951 infiles[n_infiles].language = spec_lang;
3952 infiles[n_infiles++].name = argv[i];
3957 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3958 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3960 switches[n_switches].part1 = 0;
3961 infiles[n_infiles].name = 0;
3964 /* Store switches not filtered out but %{<S} in spec in COLLECT_GCC_OPTIONS
3965 and place that in the environment. */
3968 set_collect_gcc_options ()
3973 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
3975 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
3976 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
3979 for (i = 0; (int) i < n_switches; i++)
3981 const char *const *args;
3984 obstack_grow (&collect_obstack, " ", 1);
3988 /* Ignore elided switches. */
3989 if (switches[i].live_cond == SWITCH_IGNORE)
3992 obstack_grow (&collect_obstack, "'-", 2);
3993 q = switches[i].part1;
3994 while ((p = strchr (q, '\'')))
3996 obstack_grow (&collect_obstack, q, p - q);
3997 obstack_grow (&collect_obstack, "'\\''", 4);
4000 obstack_grow (&collect_obstack, q, strlen (q));
4001 obstack_grow (&collect_obstack, "'", 1);
4003 for (args = switches[i].args; args && *args; args++)
4005 obstack_grow (&collect_obstack, " '", 2);
4007 while ((p = strchr (q, '\'')))
4009 obstack_grow (&collect_obstack, q, p - q);
4010 obstack_grow (&collect_obstack, "'\\''", 4);
4013 obstack_grow (&collect_obstack, q, strlen (q));
4014 obstack_grow (&collect_obstack, "'", 1);
4017 obstack_grow (&collect_obstack, "\0", 1);
4018 putenv (obstack_finish (&collect_obstack));
4021 /* Process a spec string, accumulating and running commands. */
4023 /* These variables describe the input file name.
4024 input_file_number is the index on outfiles of this file,
4025 so that the output file name can be stored for later use by %o.
4026 input_basename is the start of the part of the input file
4027 sans all directory names, and basename_length is the number
4028 of characters starting there excluding the suffix .c or whatever. */
4030 const char *input_filename;
4031 static int input_file_number;
4032 size_t input_filename_length;
4033 static int basename_length;
4034 static int suffixed_basename_length;
4035 static const char *input_basename;
4036 static const char *input_suffix;
4038 /* The compiler used to process the current input file. */
4039 static struct compiler *input_file_compiler;
4041 /* These are variables used within do_spec and do_spec_1. */
4043 /* Nonzero if an arg has been started and not yet terminated
4044 (with space, tab or newline). */
4045 static int arg_going;
4047 /* Nonzero means %d or %g has been seen; the next arg to be terminated
4048 is a temporary file name. */
4049 static int delete_this_arg;
4051 /* Nonzero means %w has been seen; the next arg to be terminated
4052 is the output file name of this compilation. */
4053 static int this_is_output_file;
4055 /* Nonzero means %s has been seen; the next arg to be terminated
4056 is the name of a library file and we should try the standard
4057 search dirs for it. */
4058 static int this_is_library_file;
4060 /* Nonzero means that the input of this command is coming from a pipe. */
4061 static int input_from_pipe;
4063 /* Nonnull means substitute this for any suffix when outputting a switches
4065 static const char *suffix_subst;
4067 /* Process the spec SPEC and run the commands specified therein.
4068 Returns 0 if the spec is successfully processed; -1 if failed. */
4078 delete_this_arg = 0;
4079 this_is_output_file = 0;
4080 this_is_library_file = 0;
4081 input_from_pipe = 0;
4082 suffix_subst = NULL;
4084 value = do_spec_1 (spec, 0, NULL);
4086 /* Force out any unfinished command.
4087 If -pipe, this forces out the last command if it ended in `|'. */
4090 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4093 if (argbuf_index > 0)
4100 /* Process the sub-spec SPEC as a portion of a larger spec.
4101 This is like processing a whole spec except that we do
4102 not initialize at the beginning and we do not supply a
4103 newline by default at the end.
4104 INSWITCH nonzero means don't process %-sequences in SPEC;
4105 in this case, % is treated as an ordinary character.
4106 This is used while substituting switches.
4107 INSWITCH nonzero also causes SPC not to terminate an argument.
4109 Value is zero unless a line was finished
4110 and the command on that line reported an error. */
4113 do_spec_1 (spec, inswitch, soft_matched_part)
4116 const char *soft_matched_part;
4118 register const char *p = spec;
4125 /* If substituting a switch, treat all chars like letters.
4126 Otherwise, NL, SPC, TAB and % are special. */
4127 switch (inswitch ? 'a' : c)
4130 /* End of line: finish any pending argument,
4131 then run the pending command if one has been started. */
4134 obstack_1grow (&obstack, 0);
4135 string = obstack_finish (&obstack);
4136 if (this_is_library_file)
4137 string = find_file (string);
4138 store_arg (string, delete_this_arg, this_is_output_file);
4139 if (this_is_output_file)
4140 outfiles[input_file_number] = string;
4144 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4146 for (i = 0; i < n_switches; i++)
4147 if (!strcmp (switches[i].part1, "pipe"))
4150 /* A `|' before the newline means use a pipe here,
4151 but only if -pipe was specified.
4152 Otherwise, execute now and don't pass the `|' as an arg. */
4155 input_from_pipe = 1;
4156 switches[i].validated = 1;
4163 set_collect_gcc_options ();
4165 if (argbuf_index > 0)
4171 /* Reinitialize for a new command, and for a new argument. */
4174 delete_this_arg = 0;
4175 this_is_output_file = 0;
4176 this_is_library_file = 0;
4177 input_from_pipe = 0;
4181 /* End any pending argument. */
4184 obstack_1grow (&obstack, 0);
4185 string = obstack_finish (&obstack);
4186 if (this_is_library_file)
4187 string = find_file (string);
4188 store_arg (string, delete_this_arg, this_is_output_file);
4189 if (this_is_output_file)
4190 outfiles[input_file_number] = string;
4194 obstack_1grow (&obstack, c);
4200 /* Space or tab ends an argument if one is pending. */
4203 obstack_1grow (&obstack, 0);
4204 string = obstack_finish (&obstack);
4205 if (this_is_library_file)
4206 string = find_file (string);
4207 store_arg (string, delete_this_arg, this_is_output_file);
4208 if (this_is_output_file)
4209 outfiles[input_file_number] = string;
4211 /* Reinitialize for a new argument. */
4213 delete_this_arg = 0;
4214 this_is_output_file = 0;
4215 this_is_library_file = 0;
4222 fatal ("Invalid specification! Bug in cc.");
4225 obstack_grow (&obstack, input_basename, basename_length);
4230 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4235 delete_this_arg = 2;
4238 /* Dump out the directories specified with LIBRARY_PATH,
4239 followed by the absolute directories
4240 that we search for startfiles. */
4243 struct prefix_list *pl = startfile_prefixes.plist;
4244 size_t bufsize = 100;
4245 char *buffer = (char *) xmalloc (bufsize);
4248 for (; pl; pl = pl->next)
4250 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4251 /* Used on systems which record the specified -L dirs
4252 and use them to search for dynamic linking. */
4253 /* Relative directories always come from -B,
4254 and it is better not to use them for searching
4255 at run time. In particular, stage1 loses. */
4256 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4259 /* Try subdirectory if there is one. */
4260 if (multilib_dir != NULL)
4264 if (strlen (pl->prefix) + strlen (machine_suffix)
4266 bufsize = (strlen (pl->prefix)
4267 + strlen (machine_suffix)) * 2 + 1;
4268 buffer = (char *) xrealloc (buffer, bufsize);
4269 strcpy (buffer, pl->prefix);
4270 strcat (buffer, machine_suffix);
4271 if (is_directory (buffer, multilib_dir, 1))
4273 do_spec_1 ("-L", 0, NULL);
4274 #ifdef SPACE_AFTER_L_OPTION
4275 do_spec_1 (" ", 0, NULL);
4277 do_spec_1 (buffer, 1, NULL);
4278 do_spec_1 (multilib_dir, 1, NULL);
4279 /* Make this a separate argument. */
4280 do_spec_1 (" ", 0, NULL);
4283 if (!pl->require_machine_suffix)
4285 if (is_directory (pl->prefix, multilib_dir, 1))
4287 do_spec_1 ("-L", 0, NULL);
4288 #ifdef SPACE_AFTER_L_OPTION
4289 do_spec_1 (" ", 0, NULL);
4291 do_spec_1 (pl->prefix, 1, NULL);
4292 do_spec_1 (multilib_dir, 1, NULL);
4293 /* Make this a separate argument. */
4294 do_spec_1 (" ", 0, NULL);
4300 if (is_directory (pl->prefix, machine_suffix, 1))
4302 do_spec_1 ("-L", 0, NULL);
4303 #ifdef SPACE_AFTER_L_OPTION
4304 do_spec_1 (" ", 0, NULL);
4306 do_spec_1 (pl->prefix, 1, NULL);
4307 /* Remove slash from machine_suffix. */
4308 if (strlen (machine_suffix) >= bufsize)
4309 bufsize = strlen (machine_suffix) * 2 + 1;
4310 buffer = (char *) xrealloc (buffer, bufsize);
4311 strcpy (buffer, machine_suffix);
4312 idx = strlen (buffer);
4313 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4314 buffer[idx - 1] = 0;
4315 do_spec_1 (buffer, 1, NULL);
4316 /* Make this a separate argument. */
4317 do_spec_1 (" ", 0, NULL);
4320 if (!pl->require_machine_suffix)
4322 if (is_directory (pl->prefix, "", 1))
4324 do_spec_1 ("-L", 0, NULL);
4325 #ifdef SPACE_AFTER_L_OPTION
4326 do_spec_1 (" ", 0, NULL);
4328 /* Remove slash from pl->prefix. */
4329 if (strlen (pl->prefix) >= bufsize)
4330 bufsize = strlen (pl->prefix) * 2 + 1;
4331 buffer = (char *) xrealloc (buffer, bufsize);
4332 strcpy (buffer, pl->prefix);
4333 idx = strlen (buffer);
4334 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4335 buffer[idx - 1] = 0;
4336 do_spec_1 (buffer, 1, NULL);
4337 /* Make this a separate argument. */
4338 do_spec_1 (" ", 0, NULL);
4347 /* %efoo means report an error with `foo' as error message
4348 and don't execute any more commands for this file. */
4352 while (*p != 0 && *p != '\n')
4354 buf = (char *) alloca (p - q + 1);
4355 strncpy (buf, q, p - q);
4362 /* %nfoo means report an notice with `foo' on stderr. */
4366 while (*p != 0 && *p != '\n')
4368 buf = (char *) alloca (p - q + 1);
4369 strncpy (buf, q, p - q);
4371 notice ("%s\n", buf);
4381 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4382 and it is not a directory, and it is writable, use it.
4383 Otherwise, fall through and treat this like any other
4386 if ((!save_temps_flag)
4387 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4388 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4390 obstack_grow (&obstack, HOST_BIT_BUCKET,
4391 strlen (HOST_BIT_BUCKET));
4392 delete_this_arg = 0;
4400 if (save_temps_flag)
4402 obstack_grow (&obstack, input_basename, basename_length);
4403 delete_this_arg = 0;
4407 struct temp_name *t;
4409 const char *suffix = p;
4410 char *saved_suffix = NULL;
4412 while (*p == '.' || ISALPHA ((unsigned char) *p))
4414 suffix_length = p - suffix;
4415 if (p[0] == '%' && p[1] == 'O')
4418 /* We don't support extra suffix characters after %O. */
4419 if (*p == '.' || ISALPHA ((unsigned char) *p))
4421 if (suffix_length == 0)
4422 suffix = TARGET_OBJECT_SUFFIX;
4426 = (char *) xmalloc (suffix_length
4427 + strlen (TARGET_OBJECT_SUFFIX));
4428 strncpy (saved_suffix, suffix, suffix_length);
4429 strcpy (saved_suffix + suffix_length,
4430 TARGET_OBJECT_SUFFIX);
4432 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4435 /* See if we already have an association of %g/%u/%U and
4437 for (t = temp_names; t; t = t->next)
4438 if (t->length == suffix_length
4439 && strncmp (t->suffix, suffix, suffix_length) == 0
4440 && t->unique == (c != 'g'))
4443 /* Make a new association if needed. %u and %j
4445 if (t == 0 || c == 'u' || c == 'j')
4449 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4450 t->next = temp_names;
4453 t->length = suffix_length;
4456 t->suffix = saved_suffix;
4457 saved_suffix = NULL;
4460 t->suffix = save_string (suffix, suffix_length);
4461 t->unique = (c != 'g');
4462 temp_filename = make_temp_file (t->suffix);
4463 temp_filename_length = strlen (temp_filename);
4464 t->filename = temp_filename;
4465 t->filename_length = temp_filename_length;
4469 free (saved_suffix);
4471 obstack_grow (&obstack, t->filename, t->filename_length);
4472 delete_this_arg = 1;
4478 obstack_grow (&obstack, input_filename, input_filename_length);
4484 struct prefix_list *pl = include_prefixes.plist;
4486 if (gcc_exec_prefix)
4488 do_spec_1 ("-iprefix", 1, NULL);
4489 /* Make this a separate argument. */
4490 do_spec_1 (" ", 0, NULL);
4491 do_spec_1 (gcc_exec_prefix, 1, NULL);
4492 do_spec_1 (" ", 0, NULL);
4495 for (; pl; pl = pl->next)
4497 do_spec_1 ("-isystem", 1, NULL);
4498 /* Make this a separate argument. */
4499 do_spec_1 (" ", 0, NULL);
4500 do_spec_1 (pl->prefix, 1, NULL);
4501 do_spec_1 (" ", 0, NULL);
4508 int max = n_infiles;
4509 max += lang_specific_extra_outfiles;
4511 for (i = 0; i < max; i++)
4513 store_arg (outfiles[i], 0, 0);
4518 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
4523 this_is_library_file = 1;
4527 this_is_output_file = 1;
4532 int cur_index = argbuf_index;
4533 /* Handle the {...} following the %W. */
4536 p = handle_braces (p + 1);
4539 /* If any args were output, mark the last one for deletion
4541 if (argbuf_index != cur_index)
4542 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4546 /* %x{OPTION} records OPTION for %X to output. */
4552 /* Skip past the option value and make a copy. */
4557 string = save_string (p1 + 1, p - p1 - 2);
4559 /* See if we already recorded this option. */
4560 for (i = 0; i < n_linker_options; i++)
4561 if (! strcmp (string, linker_options[i]))
4567 /* This option is new; add it. */
4568 add_linker_option (string, strlen (string));
4572 /* Dump out the options accumulated previously using %x. */
4574 for (i = 0; i < n_linker_options; i++)
4576 do_spec_1 (linker_options[i], 1, NULL);
4577 /* Make each accumulated option a separate argument. */
4578 do_spec_1 (" ", 0, NULL);
4582 /* Dump out the options accumulated previously using -Wa,. */
4584 for (i = 0; i < n_assembler_options; i++)
4586 do_spec_1 (assembler_options[i], 1, NULL);
4587 /* Make each accumulated option a separate argument. */
4588 do_spec_1 (" ", 0, NULL);
4592 /* Dump out the options accumulated previously using -Wp,. */
4594 for (i = 0; i < n_preprocessor_options; i++)
4596 do_spec_1 (preprocessor_options[i], 1, NULL);
4597 /* Make each accumulated option a separate argument. */
4598 do_spec_1 (" ", 0, NULL);
4602 /* Here are digits and numbers that just process
4603 a certain constant string as a spec. */
4606 value = do_spec_1 (cc1_spec, 0, NULL);
4612 value = do_spec_1 (cc1plus_spec, 0, NULL);
4618 value = do_spec_1 (asm_spec, 0, NULL);
4624 value = do_spec_1 (asm_final_spec, 0, NULL);
4630 value = do_spec_1 (signed_char_spec, 0, NULL);
4638 = (input_file_compiler->cpp_spec
4639 ? input_file_compiler->cpp_spec
4641 value = do_spec_1 (spec, 0, NULL);
4648 value = do_spec_1 (endfile_spec, 0, NULL);
4654 value = do_spec_1 (link_spec, 0, NULL);
4660 value = do_spec_1 (lib_spec, 0, NULL);
4666 value = do_spec_1 (libgcc_spec, 0, NULL);
4672 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4678 len = strlen (multilib_dir);
4679 obstack_blank (&obstack, len + 1);
4680 p = obstack_next_free (&obstack) - (len + 1);
4683 for (q = multilib_dir; *q ; ++q, ++p)
4684 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4690 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4694 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4698 if (! strncmp (y, "-D", 2))
4699 /* Copy the whole option. */
4700 while (*y && *y != ' ' && *y != '\t')
4702 else if (*y == ' ' || *y == '\t')
4703 /* Copy whitespace to the result. */
4705 /* Don't copy other options. */
4712 value = do_spec_1 (buf, 0, NULL);
4720 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4724 /* Copy all of CPP_PREDEFINES into BUF,
4725 but force them all into the reserved name space if they
4726 aren't already there. The reserved name space is all
4727 identifiers beginning with two underscores or with one
4728 underscore and a capital letter. We do the forcing by
4729 adding up to two underscores to the beginning and end
4730 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4735 if (! strncmp (y, "-D", 2))
4744 && ! ISUPPER ((unsigned char) *(y + 1))))
4746 /* Stick __ at front of macro name. */
4750 /* Arrange to stick __ at the end as well. */
4754 /* Copy the macro name. */
4755 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4768 /* Copy the value given, if any. */
4769 while (*y && *y != ' ' && *y != '\t')
4772 else if (*y == ' ' || *y == '\t')
4773 /* Copy whitespace to the result. */
4775 /* Don't copy -A options */
4781 /* Copy all of CPP_PREDEFINES into BUF,
4782 but put __ after every -D. */
4786 if (! strncmp (y, "-D", 2))
4792 && ! ISUPPER ((unsigned char) *(y + 1))))
4794 /* Stick -D__ at front of macro name. */
4801 /* Copy the macro name. */
4802 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4805 /* Copy the value given, if any. */
4806 while (*y && *y != ' ' && *y != '\t')
4811 /* Do not copy this macro - we have just done it before */
4812 while (*y && *y != ' ' && *y != '\t')
4816 else if (*y == ' ' || *y == '\t')
4817 /* Copy whitespace to the result. */
4819 /* Don't copy -A options. */
4825 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4829 if (! strncmp (y, "-A", 2))
4830 /* Copy the whole option. */
4831 while (*y && *y != ' ' && *y != '\t')
4833 else if (*y == ' ' || *y == '\t')
4834 /* Copy whitespace to the result. */
4836 /* Don't copy other options. */
4843 value = do_spec_1 (buf, 0, NULL);
4850 value = do_spec_1 (startfile_spec, 0, NULL);
4855 /* Here we define characters other than letters and digits. */
4858 p = handle_braces (p);
4864 obstack_1grow (&obstack, '%');
4871 while (p[len] && p[len] != ' ' && p[len] != '%')
4873 suffix_subst = save_string (p - 1, len + 1);
4879 if (soft_matched_part)
4881 do_spec_1 (soft_matched_part, 1, NULL);
4882 do_spec_1 (" ", 0, NULL);
4885 /* Catch the case where a spec string contains something like
4886 '%{foo:%*}'. ie there is no * in the pattern on the left
4887 hand side of the :. */
4888 error ("Spec failure: '%%*' has not been initialised by pattern match");
4891 /* Process a string found as the value of a spec given by name.
4892 This feature allows individual machine descriptions
4893 to add and use their own specs.
4894 %[...] modifies -D options the way %P does;
4895 %(...) uses the spec unmodified. */
4897 error ("Warning: use of obsolete %%[ operator in specs");
4900 const char *name = p;
4901 struct spec_list *sl;
4904 /* The string after the S/P is the name of a spec that is to be
4906 while (*p && *p != ')' && *p != ']')
4909 /* See if it's in the list. */
4910 for (len = p - name, sl = specs; sl; sl = sl->next)
4911 if (sl->name_len == len && !strncmp (sl->name, name, len))
4913 name = *(sl->ptr_spec);
4915 notice ("Processing spec %c%s%c, which is '%s'\n",
4916 c, sl->name, (c == '(') ? ')' : ']', name);
4925 value = do_spec_1 (name, 0, NULL);
4931 char *x = (char *) alloca (strlen (name) * 2 + 1);
4933 const char *y = name;
4936 /* Copy all of NAME into BUF, but put __ after
4937 every -D and at the end of each arg. */
4940 if (! strncmp (y, "-D", 2))
4951 && (*y == ' ' || *y == '\t' || *y == '='
4952 || *y == '}' || *y == 0))
4965 value = do_spec_1 (buf, 0, NULL);
4971 /* Discard the closing paren or bracket. */
4979 int c1 = *p++; /* Select first or second version number. */
4980 const char *v = compiler_version;
4982 static const char zeroc = '0';
4984 /* The format of the version string is
4985 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4987 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4988 while (! ISDIGIT (*v))
4990 if (v > compiler_version && v[-1] != '-')
4993 /* If desired, advance to second version number. */
4996 /* Set V after the first period. */
4997 while (ISDIGIT (*v))
5004 /* If desired, advance to third version number.
5005 But don't complain if it's not present */
5008 /* Set V after the second period. */
5009 while (ISDIGIT (*v))
5011 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
5017 /* Set Q at the next period or at the end. */
5019 while (ISDIGIT (*q))
5021 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
5025 /* Put that part into the command. */
5026 obstack_grow (&obstack, v, q - v);
5028 /* Default to "0" */
5029 obstack_grow (&obstack, &zeroc, 1);
5035 if (input_from_pipe)
5036 do_spec_1 ("-", 0, NULL);
5040 error ("Spec failure: Unrecognised spec option '%c'", c);
5046 /* Backslash: treat next character as ordinary. */
5051 /* Ordinary character: put it into the current argument. */
5052 obstack_1grow (&obstack, c);
5056 /* End of string. */
5060 /* Return 0 if we call do_spec_1 and that returns -1. */
5064 register const char *p;
5066 const char *filter, *body = NULL, *endbody = NULL;
5068 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5071 int include_blanks = 1;
5072 int elide_switch = 0;
5077 /* A '^' after the open-brace means to not give blanks before args. */
5084 /* A `|' after the open-brace means,
5085 if the test fails, output a single minus sign rather than nothing.
5086 This is used in %{|!pipe:...}. */
5093 /* A `<' after the open-brace means that the switch should be
5094 removed from the command-line. */
5100 negate = suffix = 0;
5103 /* A `!' after the open-brace negates the condition:
5104 succeed if the specified switch is not present. */
5108 /* A `.' after the open-brace means test against the current suffix. */
5117 if (elide_switch && (negate || pipe_p || suffix))
5119 /* It doesn't make sense to mix elision with other flags. We
5120 could fatal() here, but the standard seems to be to abort. */
5126 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
5129 if (*p == '|' && (pipe_p || ordered))
5134 if (*p != '}' && *p != '&')
5136 register int count = 1;
5137 register const char *q = p;
5156 body = p, endbody = p + 1;
5161 int found = (input_suffix != 0
5162 && (long) strlen (input_suffix) == (long) (p - filter)
5163 && strncmp (input_suffix, filter, p - filter) == 0);
5169 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL) < 0)
5172 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
5174 /* Substitute all matching switches as separate args. */
5177 for (i = 0; i < n_switches; i++)
5178 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
5179 && check_live_switch (i, p - 1 - filter))
5183 switches[i].live_cond = SWITCH_IGNORE;
5184 switches[i].validated = 1;
5187 ordered = 1, switches[i].ordering = 1;
5192 /* Test for presence of the specified switch. */
5196 /* If name specified ends in *, as in {x*:...},
5197 check for %* and handle that case. */
5198 if (p[-1] == '*' && !negate)
5201 const char *r = body;
5203 /* First see whether we have %*. */
5207 if (*r == '%' && r[1] == '*')
5211 /* If we do, handle that case. */
5214 /* Substitute all matching switches as separate args.
5215 But do this by substituting for %*
5216 in the text that follows the colon. */
5218 unsigned hard_match_len = p - filter - 1;
5219 char *string = save_string (body, endbody - body - 1);
5221 for (i = 0; i < n_switches; i++)
5222 if (!strncmp (switches[i].part1, filter, hard_match_len)
5223 && check_live_switch (i, -1))
5225 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5226 /* Pass any arguments this switch has. */
5227 give_switch (i, 1, 1);
5228 suffix_subst = NULL;
5231 /* We didn't match. Try again. */
5238 /* If name specified ends in *, as in {x*:...},
5239 check for presence of any switch name starting with x. */
5242 for (i = 0; i < n_switches; i++)
5244 unsigned hard_match_len = p - filter - 1;
5246 if (!strncmp (switches[i].part1, filter, hard_match_len)
5247 && check_live_switch (i, hard_match_len))
5254 /* Otherwise, check for presence of exact name specified. */
5257 for (i = 0; i < n_switches; i++)
5259 if (!strncmp (switches[i].part1, filter, p - filter)
5260 && switches[i].part1[p - filter] == 0
5261 && check_live_switch (i, -1))
5269 /* If it is as desired (present for %{s...}, absent for %{!s...})
5270 then substitute either the switch or the specified
5271 conditional text. */
5272 if (present != negate)
5276 switches[i].live_cond = SWITCH_IGNORE;
5277 switches[i].validated = 1;
5279 else if (ordered || *p == '&')
5280 ordered = 1, switches[i].ordering = 1;
5282 give_switch (i, 0, include_blanks);
5284 /* Even if many alternatives are matched, only output once. */
5289 /* Here if a %{|...} conditional fails: output a minus sign,
5290 which means "standard output" or "standard input". */
5291 do_spec_1 ("-", 0, NULL);
5296 /* We didn't match; try again. */
5303 goto next_ampersand;
5309 /* Doing this set of switches later preserves their command-line
5310 ordering. This is needed for e.g. -U, -D and -A. */
5311 for (i = 0; i < n_switches; i++)
5312 if (switches[i].ordering == 1)
5314 switches[i].ordering = 0;
5315 give_switch (i, 0, include_blanks);
5318 /* Process the spec just once, regardless of match count. */
5321 if (do_spec_1 (save_string (body, endbody - body - 1),
5329 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5330 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5331 spec, or -1 if either exact match or %* is used.
5333 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5334 whose value does not begin with "no-" is obsoleted by the same value
5335 with the "no-", similarly for a switch with the "no-" prefix. */
5338 check_live_switch (switchnum, prefix_length)
5342 const char *name = switches[switchnum].part1;
5345 /* In the common case of {<at-most-one-letter>*}, a negating
5346 switch would always match, so ignore that case. We will just
5347 send the conflicting switches to the compiler phase. */
5348 if (prefix_length >= 0 && prefix_length <= 1)
5351 /* If we already processed this switch and determined if it was
5352 live or not, return our past determination. */
5353 if (switches[switchnum].live_cond != 0)
5354 return switches[switchnum].live_cond > 0;
5356 /* Now search for duplicate in a manner that depends on the name. */
5360 for (i = switchnum + 1; i < n_switches; i++)
5361 if (switches[i].part1[0] == 'O')
5363 switches[switchnum].validated = 1;
5364 switches[switchnum].live_cond = SWITCH_FALSE;
5369 case 'W': case 'f': case 'm':
5370 if (! strncmp (name + 1, "no-", 3))
5372 /* We have Xno-YYY, search for XYYY. */
5373 for (i = switchnum + 1; i < n_switches; i++)
5374 if (switches[i].part1[0] == name[0]
5375 && ! strcmp (&switches[i].part1[1], &name[4]))
5377 switches[switchnum].validated = 1;
5378 switches[switchnum].live_cond = SWITCH_FALSE;
5384 /* We have XYYY, search for Xno-YYY. */
5385 for (i = switchnum + 1; i < n_switches; i++)
5386 if (switches[i].part1[0] == name[0]
5387 && switches[i].part1[1] == 'n'
5388 && switches[i].part1[2] == 'o'
5389 && switches[i].part1[3] == '-'
5390 && !strcmp (&switches[i].part1[4], &name[1]))
5392 switches[switchnum].validated = 1;
5393 switches[switchnum].live_cond = SWITCH_FALSE;
5400 /* Otherwise the switch is live. */
5401 switches[switchnum].live_cond = SWITCH_LIVE;
5405 /* Pass a switch to the current accumulating command
5406 in the same form that we received it.
5407 SWITCHNUM identifies the switch; it is an index into
5408 the vector of switches gcc received, which is `switches'.
5409 This cannot fail since it never finishes a command line.
5411 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5413 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5417 give_switch (switchnum, omit_first_word, include_blanks)
5419 int omit_first_word;
5422 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5425 if (!omit_first_word)
5427 do_spec_1 ("-", 0, NULL);
5428 do_spec_1 (switches[switchnum].part1, 1, NULL);
5431 if (switches[switchnum].args != 0)
5434 for (p = switches[switchnum].args; *p; p++)
5436 const char *arg = *p;
5439 do_spec_1 (" ", 0, NULL);
5442 unsigned length = strlen (arg);
5445 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5446 if (arg[length] == '.')
5448 ((char *)arg)[length] = 0;
5452 do_spec_1 (arg, 1, NULL);
5454 ((char *)arg)[length] = '.';
5455 do_spec_1 (suffix_subst, 1, NULL);
5458 do_spec_1 (arg, 1, NULL);
5462 do_spec_1 (" ", 0, NULL);
5463 switches[switchnum].validated = 1;
5466 /* Search for a file named NAME trying various prefixes including the
5467 user's -B prefix and some standard ones.
5468 Return the absolute file name found. If nothing is found, return NAME. */
5476 /* Try multilib_dir if it is defined. */
5477 if (multilib_dir != NULL)
5481 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5482 strcpy (try, multilib_dir);
5483 strcat (try, dir_separator_str);
5486 newname = find_a_file (&startfile_prefixes, try, R_OK);
5488 /* If we don't find it in the multi library dir, then fall
5489 through and look for it in the normal places. */
5490 if (newname != NULL)
5494 newname = find_a_file (&startfile_prefixes, name, R_OK);
5495 return newname ? newname : name;
5498 /* Determine whether a directory exists. If LINKER, return 0 for
5499 certain fixed names not needed by the linker. If not LINKER, it is
5500 only important to return 0 if the host machine has a small ARG_MAX
5504 is_directory (path1, path2, linker)
5509 int len1 = strlen (path1);
5510 int len2 = strlen (path2);
5511 char *path = (char *) alloca (3 + len1 + len2);
5515 #ifndef SMALL_ARG_MAX
5520 /* Construct the path from the two parts. Ensure the string ends with "/.".
5521 The resulting path will be a directory even if the given path is a
5523 memcpy (path, path1, len1);
5524 memcpy (path + len1, path2, len2);
5525 cp = path + len1 + len2;
5526 if (!IS_DIR_SEPARATOR (cp[-1]))
5527 *cp++ = DIR_SEPARATOR;
5531 /* Exclude directories that the linker is known to search. */
5534 && strcmp (path, concat (dir_separator_str, "lib",
5535 dir_separator_str, ".", NULL)) == 0)
5537 && strcmp (path, concat (dir_separator_str, "usr",
5538 dir_separator_str, "lib",
5539 dir_separator_str, ".", NULL)) == 0)))
5542 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5545 /* Set up the various global variables to indicate that we're processing
5546 the input file named FILENAME. */
5549 set_input (filename)
5550 const char *filename;
5552 register const char *p;
5554 input_filename = filename;
5555 input_filename_length = strlen (input_filename);
5557 input_basename = input_filename;
5558 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5559 /* Skip drive name so 'x:foo' is handled properly. */
5560 if (input_basename[1] == ':')
5561 input_basename += 2;
5563 for (p = input_basename; *p; p++)
5564 if (IS_DIR_SEPARATOR (*p))
5565 input_basename = p + 1;
5567 /* Find a suffix starting with the last period,
5568 and set basename_length to exclude that suffix. */
5569 basename_length = strlen (input_basename);
5570 suffixed_basename_length = basename_length;
5571 p = input_basename + basename_length;
5572 while (p != input_basename && *p != '.')
5574 if (*p == '.' && p != input_basename)
5576 basename_length = p - input_basename;
5577 input_suffix = p + 1;
5583 /* On fatal signals, delete all the temporary files. */
5586 fatal_error (signum)
5589 signal (signum, SIG_DFL);
5590 delete_failure_queue ();
5591 delete_temp_files ();
5592 /* Get the same signal again, this time not handled,
5593 so its normal effect occurs. */
5594 kill (getpid (), signum);
5597 extern int main PARAMS ((int, const char *const *));
5602 const char *const *argv;
5606 int linker_was_run = 0;
5607 char *explicit_link_files;
5610 struct user_specs *uptr;
5612 p = argv[0] + strlen (argv[0]);
5613 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5617 xmalloc_set_program_name (programname);
5619 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5620 /* Perform host dependant initialization when needed. */
5621 GCC_DRIVER_HOST_INITIALIZATION;
5624 /* LC_CTYPE determines the character set used by the terminal so it has be set
5625 to output messages correctly. */
5627 #ifdef HAVE_LC_MESSAGES
5628 setlocale (LC_CTYPE, "");
5629 setlocale (LC_MESSAGES, "");
5631 setlocale (LC_ALL, "");
5634 (void) bindtextdomain (PACKAGE, localedir);
5635 (void) textdomain (PACKAGE);
5637 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5638 signal (SIGINT, fatal_error);
5640 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5641 signal (SIGHUP, fatal_error);
5643 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5644 signal (SIGTERM, fatal_error);
5646 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5647 signal (SIGPIPE, fatal_error);
5650 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5651 receive the signal. A different setting is inheritable */
5652 signal (SIGCHLD, SIG_DFL);
5656 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5658 obstack_init (&obstack);
5660 /* Build multilib_select, et. al from the separate lines that make up each
5661 multilib selection. */
5663 const char *const *q = multilib_raw;
5666 obstack_init (&multilib_obstack);
5667 while ((p = *q++) != (char *) 0)
5668 obstack_grow (&multilib_obstack, p, strlen (p));
5670 obstack_1grow (&multilib_obstack, 0);
5671 multilib_select = obstack_finish (&multilib_obstack);
5673 q = multilib_matches_raw;
5674 while ((p = *q++) != (char *) 0)
5675 obstack_grow (&multilib_obstack, p, strlen (p));
5677 obstack_1grow (&multilib_obstack, 0);
5678 multilib_matches = obstack_finish (&multilib_obstack);
5680 q = multilib_exclusions_raw;
5681 while ((p = *q++) != (char *) 0)
5682 obstack_grow (&multilib_obstack, p, strlen (p));
5684 obstack_1grow (&multilib_obstack, 0);
5685 multilib_exclusions = obstack_finish (&multilib_obstack);
5688 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5691 obstack_1grow (&multilib_obstack, ' ');
5692 obstack_grow (&multilib_obstack,
5693 multilib_defaults_raw[i],
5694 strlen (multilib_defaults_raw[i]));
5698 obstack_1grow (&multilib_obstack, 0);
5699 multilib_defaults = obstack_finish (&multilib_obstack);
5702 /* Set up to remember the pathname of gcc and any options
5703 needed for collect. We use argv[0] instead of programname because
5704 we need the complete pathname. */
5705 obstack_init (&collect_obstack);
5706 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5707 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5708 putenv (obstack_finish (&collect_obstack));
5710 #ifdef INIT_ENVIRONMENT
5711 /* Set up any other necessary machine specific environment variables. */
5712 putenv (INIT_ENVIRONMENT);
5715 /* Make a table of what switches there are (switches, n_switches).
5716 Make a table of specified input files (infiles, n_infiles).
5717 Decode switches that are handled locally. */
5719 process_command (argc, argv);
5721 /* Initialize the vector of specs to just the default.
5722 This means one element containing 0s, as a terminator. */
5724 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5725 memcpy ((char *) compilers, (char *) default_compilers,
5726 sizeof default_compilers);
5727 n_compilers = n_default_compilers;
5729 /* Read specs from a file if there is one. */
5731 machine_suffix = concat (spec_machine, dir_separator_str,
5732 spec_version, dir_separator_str, NULL);
5733 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
5735 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5736 /* Read the specs file unless it is a default one. */
5737 if (specs_file != 0 && strcmp (specs_file, "specs"))
5738 read_specs (specs_file, TRUE);
5742 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5743 for any override of as, ld and libraries. */
5744 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5745 + strlen (just_machine_suffix)
5746 + sizeof ("specs"));
5748 strcpy (specs_file, standard_exec_prefix);
5749 strcat (specs_file, just_machine_suffix);
5750 strcat (specs_file, "specs");
5751 if (access (specs_file, R_OK) == 0)
5752 read_specs (specs_file, TRUE);
5754 /* If not cross-compiling, look for startfiles in the standard places. */
5755 if (*cross_compile == '0')
5757 if (*md_exec_prefix)
5759 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5760 PREFIX_PRIORITY_LAST, 0, NULL);
5761 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5762 PREFIX_PRIORITY_LAST, 0, NULL);
5765 if (*md_startfile_prefix)
5766 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5767 PREFIX_PRIORITY_LAST, 0, NULL);
5769 if (*md_startfile_prefix_1)
5770 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5771 PREFIX_PRIORITY_LAST, 0, NULL);
5773 /* If standard_startfile_prefix is relative, base it on
5774 standard_exec_prefix. This lets us move the installed tree
5775 as a unit. If GCC_EXEC_PREFIX is defined, base
5776 standard_startfile_prefix on that as well. */
5777 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5778 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5779 PREFIX_PRIORITY_LAST, 0, NULL);
5782 if (gcc_exec_prefix)
5783 add_prefix (&startfile_prefixes,
5784 concat (gcc_exec_prefix, machine_suffix,
5785 standard_startfile_prefix, NULL),
5786 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5787 add_prefix (&startfile_prefixes,
5788 concat (standard_exec_prefix,
5790 standard_startfile_prefix, NULL),
5791 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5794 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5795 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5796 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5797 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5798 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5799 add_prefix (&startfile_prefixes, "./", NULL,
5800 PREFIX_PRIORITY_LAST, 1, NULL);
5805 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5807 add_prefix (&startfile_prefixes,
5808 concat (gcc_exec_prefix, machine_suffix,
5809 standard_startfile_prefix, NULL),
5810 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5813 /* Process any user specified specs in the order given on the command
5815 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5817 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5818 read_specs (filename ? filename : uptr->filename, FALSE);
5821 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5822 if (gcc_exec_prefix)
5824 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5825 + strlen (spec_version)
5826 + strlen (spec_machine) + 3);
5827 strcpy (temp, gcc_exec_prefix);
5828 strcat (temp, spec_machine);
5829 strcat (temp, dir_separator_str);
5830 strcat (temp, spec_version);
5831 strcat (temp, dir_separator_str);
5832 gcc_exec_prefix = temp;
5835 /* Now we have the specs.
5836 Set the `valid' bits for switches that match anything in any spec. */
5838 validate_all_switches ();
5840 /* Now that we have the switches and the specs, set
5841 the subdirectory based on the options. */
5842 set_multilib_dir ();
5844 /* Warn about any switches that no pass was interested in. */
5846 for (i = 0; (int) i < n_switches; i++)
5847 if (! switches[i].validated)
5848 error ("unrecognized option `-%s'", switches[i].part1);
5850 /* Obey some of the options. */
5852 if (print_search_dirs)
5854 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5855 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5856 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5860 if (print_file_name)
5862 printf ("%s\n", find_file (print_file_name));
5866 if (print_prog_name)
5868 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5869 printf ("%s\n", (newname ? newname : print_prog_name));
5873 if (print_multi_lib)
5875 print_multilib_info ();
5879 if (print_multi_directory)
5881 if (multilib_dir == NULL)
5884 printf ("%s\n", multilib_dir);
5888 if (target_help_flag)
5890 /* Print if any target specific options.*/
5892 /* We do not exit here. Instead we have created a fake input file
5893 called 'target-dummy' which needs to be compiled, and we pass this
5894 on to the various sub-processes, along with the --target-help
5898 if (print_help_list)
5904 printf (_("\nFor bug reporting instructions, please see:\n"));
5905 printf ("%s.\n", GCCBUGURL);
5910 /* We do not exit here. Instead we have created a fake input file
5911 called 'help-dummy' which needs to be compiled, and we pass this
5912 on the the various sub-processes, along with the --help switch. */
5920 notice ("Configured with: %s\n", configuration_arguments);
5922 #ifdef THREAD_MODEL_SPEC
5923 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5924 but there's no point in doing all this processing just to get
5925 thread_model back. */
5926 obstack_init (&obstack);
5927 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
5928 obstack_1grow (&obstack, '\0');
5929 thrmod = obstack_finish (&obstack);
5931 thrmod = thread_model;
5934 notice ("Thread model: %s\n", thrmod);
5936 /* compiler_version is truncated at the first space when initialized
5937 from version string, so truncate version_string at the first space
5938 before comparing. */
5939 for (n = 0; version_string[n]; n++)
5940 if (version_string[n] == ' ')
5943 if (! strncmp (version_string, compiler_version, n)
5944 && compiler_version[n] == 0)
5945 notice ("gcc version %s\n", version_string);
5947 notice ("gcc driver version %s executing gcc version %s\n",
5948 version_string, compiler_version);
5954 if (n_infiles == added_libraries)
5955 fatal ("No input files");
5957 /* Make a place to record the compiler output file names
5958 that correspond to the input files. */
5961 i += lang_specific_extra_outfiles;
5962 outfiles = (const char **) xcalloc (i, sizeof (char *));
5964 /* Record which files were specified explicitly as link input. */
5966 explicit_link_files = xcalloc (1, n_infiles);
5968 for (i = 0; (int) i < n_infiles; i++)
5970 int this_file_error = 0;
5972 /* Tell do_spec what to substitute for %i. */
5974 input_file_number = i;
5975 set_input (infiles[i].name);
5977 /* Use the same thing in %o, unless cp->spec says otherwise. */
5979 outfiles[i] = input_filename;
5981 /* Figure out which compiler from the file's suffix. */
5984 = lookup_compiler (infiles[i].name, input_filename_length,
5985 infiles[i].language);
5987 if (input_file_compiler)
5989 /* Ok, we found an applicable compiler. Run its spec. */
5991 if (input_file_compiler->spec[0] == '#')
5992 error ("%s: %s compiler not installed on this system",
5993 input_filename, &input_file_compiler->spec[1]);
5994 value = do_spec (input_file_compiler->spec);
5996 this_file_error = 1;
5999 /* If this file's name does not contain a recognized suffix,
6000 record it as explicit linker input. */
6003 explicit_link_files[i] = 1;
6005 /* Clear the delete-on-failure queue, deleting the files in it
6006 if this compilation failed. */
6008 if (this_file_error)
6010 delete_failure_queue ();
6013 /* If this compilation succeeded, don't delete those files later. */
6014 clear_failure_queue ();
6017 /* Reset the output file name to the first input file name, for use
6018 with %b in LINK_SPEC on a target that prefers not to emit a.out
6021 set_input (infiles[0].name);
6023 if (error_count == 0)
6025 /* Make sure INPUT_FILE_NUMBER points to first available open
6027 input_file_number = n_infiles;
6028 if (lang_specific_pre_link ())
6032 /* Run ld to link all the compiler output files. */
6034 if (error_count == 0)
6036 int tmp = execution_count;
6038 /* We'll use ld if we can't find collect2. */
6039 if (! strcmp (linker_name_spec, "collect2"))
6041 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
6043 linker_name_spec = "ld";
6045 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6047 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
6048 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
6050 value = do_spec (link_command_spec);
6053 linker_was_run = (tmp != execution_count);
6056 /* If options said don't run linker,
6057 complain about input files to be given to the linker. */
6059 if (! linker_was_run && error_count == 0)
6060 for (i = 0; (int) i < n_infiles; i++)
6061 if (explicit_link_files[i])
6062 error ("%s: linker input file unused because linking not done",
6065 /* Delete some or all of the temporary files we made. */
6068 delete_failure_queue ();
6069 delete_temp_files ();
6071 if (print_help_list)
6073 printf (("\nFor bug reporting instructions, please see:\n"));
6074 printf ("%s\n", GCCBUGURL);
6077 return (signal_count != 0 ? 2
6078 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6082 /* Find the proper compilation spec for the file name NAME,
6083 whose length is LENGTH. LANGUAGE is the specified language,
6084 or 0 if this file is to be passed to the linker. */
6086 static struct compiler *
6087 lookup_compiler (name, length, language)
6090 const char *language;
6092 struct compiler *cp;
6094 /* If this was specified by the user to be a linker input, indicate that. */
6095 if (language != 0 && language[0] == '*')
6098 /* Otherwise, look for the language, if one is spec'd. */
6101 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6102 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6105 error ("language %s not recognized", language);
6109 /* Look for a suffix. */
6110 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6112 if (/* The suffix `-' matches only the file name `-'. */
6113 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6114 || (strlen (cp->suffix) < length
6115 /* See if the suffix matches the end of NAME. */
6116 && !strcmp (cp->suffix,
6117 name + length - strlen (cp->suffix))
6122 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6123 /* look again, but case-insensitively this time. */
6125 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6127 if (/* The suffix `-' matches only the file name `-'. */
6128 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6129 || (strlen (cp->suffix) < length
6130 /* See if the suffix matches the end of NAME. */
6131 && ((!strcmp (cp->suffix,
6132 name + length - strlen (cp->suffix))
6133 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6134 && !strcasecmp (cp->suffix,
6135 name + length - strlen (cp->suffix)))
6141 if (cp >= compilers)
6143 if (cp->spec[0] != '@')
6144 /* A non-alias entry: return it. */
6147 /* An alias entry maps a suffix to a language.
6148 Search for the language; pass 0 for NAME and LENGTH
6149 to avoid infinite recursion if language not found. */
6150 return lookup_compiler (NULL, 0, cp->spec + 1);
6156 save_string (s, len)
6160 register char *result = xmalloc (len + 1);
6162 memcpy (result, s, len);
6168 pfatal_with_name (name)
6171 perror_with_name (name);
6172 delete_temp_files ();
6177 perror_with_name (name)
6180 error ("%s: %s", name, xstrerror (errno));
6184 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6185 const char *errmsg_fmt;
6186 const char *errmsg_arg;
6190 int save_errno = errno;
6192 /* Space for trailing '\0' is in %s. */
6193 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6194 sprintf (msg, errmsg_fmt, errmsg_arg);
6200 pfatal_with_name (errmsg_fmt);
6203 /* Output an error message and exit */
6208 fatal ("Internal gcc abort.");
6211 /* Output an error message and exit */
6214 fatal VPARAMS ((const char *msgid, ...))
6216 #ifndef ANSI_PROTOTYPES
6221 VA_START (ap, msgid);
6223 #ifndef ANSI_PROTOTYPES
6224 msgid = va_arg (ap, const char *);
6227 fprintf (stderr, "%s: ", programname);
6228 vfprintf (stderr, _(msgid), ap);
6230 fprintf (stderr, "\n");
6231 delete_temp_files ();
6236 error VPARAMS ((const char *msgid, ...))
6238 #ifndef ANSI_PROTOTYPES
6243 VA_START (ap, msgid);
6245 #ifndef ANSI_PROTOTYPES
6246 msgid = va_arg (ap, const char *);
6249 fprintf (stderr, "%s: ", programname);
6250 vfprintf (stderr, _(msgid), ap);
6253 fprintf (stderr, "\n");
6257 notice VPARAMS ((const char *msgid, ...))
6259 #ifndef ANSI_PROTOTYPES
6264 VA_START (ap, msgid);
6266 #ifndef ANSI_PROTOTYPES
6267 msgid = va_arg (ap, const char *);
6270 vfprintf (stderr, _(msgid), ap);
6275 validate_all_switches ()
6277 struct compiler *comp;
6278 register const char *p;
6280 struct spec_list *spec;
6282 for (comp = compilers; comp->spec; comp++)
6286 if (c == '%' && *p == '{')
6287 /* We have a switch spec. */
6288 validate_switches (p + 1);
6291 /* Look through the linked list of specs read from the specs file. */
6292 for (spec = specs; spec; spec = spec->next)
6294 p = *(spec->ptr_spec);
6296 if (c == '%' && *p == '{')
6297 /* We have a switch spec. */
6298 validate_switches (p + 1);
6301 p = link_command_spec;
6303 if (c == '%' && *p == '{')
6304 /* We have a switch spec. */
6305 validate_switches (p + 1);
6308 /* Look at the switch-name that comes after START
6309 and mark as valid all supplied switches that match it. */
6312 validate_switches (start)
6315 register const char *p = start;
6332 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6337 else if (p[-1] == '*')
6339 /* Mark all matching switches as valid. */
6340 for (i = 0; i < n_switches; i++)
6341 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6342 switches[i].validated = 1;
6346 /* Mark an exact matching switch as valid. */
6347 for (i = 0; i < n_switches; i++)
6349 if (!strncmp (switches[i].part1, filter, p - filter)
6350 && switches[i].part1[p - filter] == 0)
6351 switches[i].validated = 1;
6355 if (*p++ == '|' || p[-1] == '&')
6359 /* Check whether a particular argument was used. The first time we
6360 canonicalize the switches to keep only the ones we care about. */
6370 const char *replace;
6375 static struct mswitchstr *mswitches;
6376 static int n_mswitches;
6381 struct mswitchstr *matches;
6385 /* Break multilib_matches into the component strings of string
6386 and replacement string. */
6387 for (q = multilib_matches; *q != '\0'; q++)
6392 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6394 q = multilib_matches;
6404 matches[i].len = q - matches[i].str;
6406 matches[i].replace = ++q;
6407 while (*q != ';' && *q != '\0')
6413 matches[i].rep_len = q - matches[i].replace;
6419 /* Now build a list of the replacement string for switches that we care
6420 about. Make sure we allocate at least one entry. This prevents
6421 xmalloc from calling fatal, and prevents us from re-executing this
6424 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6425 * (n_switches ? n_switches : 1));
6426 for (i = 0; i < n_switches; i++)
6428 int xlen = strlen (switches[i].part1);
6429 for (j = 0; j < cnt; j++)
6430 if (xlen == matches[j].len
6431 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6433 mswitches[n_mswitches].str = matches[j].replace;
6434 mswitches[n_mswitches].len = matches[j].rep_len;
6435 mswitches[n_mswitches].replace = (char *) 0;
6436 mswitches[n_mswitches].rep_len = 0;
6443 for (i = 0; i < n_mswitches; i++)
6444 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6451 default_arg (p, len)
6455 const char *start, *end;
6457 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6459 while (*start == ' ' || *start == '\t')
6465 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6468 if ((end - start) == len && strncmp (p, start, len) == 0)
6478 /* Work out the subdirectory to use based on the options. The format of
6479 multilib_select is a list of elements. Each element is a subdirectory
6480 name followed by a list of options followed by a semicolon. The format
6481 of multilib_exclusions is the same, but without the preceding
6482 directory. First gcc will check the exclusions, if none of the options
6483 beginning with an exclamation point are present, and all of the other
6484 options are present, then we will ignore this completely. Passing
6485 that, gcc will consider each multilib_select in turn using the same
6486 rules for matching the options. If a match is found, that subdirectory
6493 unsigned int this_path_len;
6494 const char *this_path, *this_arg;
6498 p = multilib_exclusions;
6501 /* Ignore newlines. */
6508 /* Check the arguments. */
6522 while (*p != ' ' && *p != ';')
6529 if (*this_arg != '!')
6537 ok = used_arg (this_arg, p - this_arg);
6551 p = multilib_select;
6554 /* Ignore newlines. */
6561 /* Get the initial path. */
6569 this_path_len = p - this_path;
6571 /* Check the arguments. */
6586 while (*p != ' ' && *p != ';')
6593 if (*this_arg != '!')
6601 /* If this is a default argument, we can just ignore it.
6602 This is true even if this_arg begins with '!'. Beginning
6603 with '!' does not mean that this argument is necessarily
6604 inappropriate for this library: it merely means that
6605 there is a more specific library which uses this
6606 argument. If this argument is a default, we need not
6607 consider that more specific library. */
6608 if (! default_arg (this_arg, p - this_arg))
6610 ok = used_arg (this_arg, p - this_arg);
6621 if (this_path_len != 1
6622 || this_path[0] != '.')
6624 char *new_multilib_dir = xmalloc (this_path_len + 1);
6625 strncpy (new_multilib_dir, this_path, this_path_len);
6626 new_multilib_dir[this_path_len] = '\0';
6627 multilib_dir = new_multilib_dir;
6636 /* Print out the multiple library subdirectory selection
6637 information. This prints out a series of lines. Each line looks
6638 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6639 required. Only the desired options are printed out, the negative
6640 matches. The options are print without a leading dash. There are
6641 no spaces to make it easy to use the information in the shell.
6642 Each subdirectory is printed only once. This assumes the ordering
6643 generated by the genmultilib script. Also, we leave out ones that match
6647 print_multilib_info ()
6649 const char *p = multilib_select;
6650 const char *last_path = 0, *this_path;
6652 unsigned int last_path_len = 0;
6657 /* Ignore newlines. */
6664 /* Get the initial path. */
6673 /* Check for matches with the multilib_exclusions. We don't bother
6674 with the '!' in either list. If any of the exclusion rules match
6675 all of its options with the select rule, we skip it. */
6677 const char *e = multilib_exclusions;
6678 const char *this_arg;
6683 /* Ignore newlines. */
6690 /* Check the arguments. */
6707 while (*e != ' ' && *e != ';')
6718 int len = e - this_arg;
6725 while (*q != ' ' && *q != ';')
6732 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6733 default_arg (this_arg, e - this_arg))
6763 /* If this is a duplicate, skip it. */
6764 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6765 && ! strncmp (last_path, this_path, last_path_len));
6767 last_path = this_path;
6768 last_path_len = p - this_path;
6771 /* If this directory requires any default arguments, we can skip
6772 it. We will already have printed a directory identical to
6773 this one which does not require that default argument. */
6791 while (*q != ' ' && *q != ';')
6799 && default_arg (arg, q - arg))
6814 for (p1 = last_path; p1 < p; p1++)
6833 use_arg = *p != '!';
6838 while (*p != ' ' && *p != ';')
6853 /* If there are extra options, print them now. */
6854 if (multilib_extra && *multilib_extra)
6856 int print_at = TRUE;
6859 for (q = multilib_extra; *q != '\0'; q++)