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 GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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 int do_spec_1 PARAMS ((const char *, int, const char *));
293 static const char *find_file PARAMS ((const char *));
294 static int is_directory PARAMS ((const char *, const char *, int));
295 static void validate_switches PARAMS ((const char *));
296 static void validate_all_switches PARAMS ((void));
297 static void give_switch PARAMS ((int, int, int));
298 static int used_arg PARAMS ((const char *, int));
299 static int default_arg PARAMS ((const char *, int));
300 static void set_multilib_dir PARAMS ((void));
301 static void print_multilib_info PARAMS ((void));
302 static void perror_with_name PARAMS ((const char *));
303 static void pfatal_pexecute PARAMS ((const char *, const char *))
305 static void notice PARAMS ((const char *, ...))
307 static void display_help PARAMS ((void));
308 static void add_preprocessor_option PARAMS ((const char *, int));
309 static void add_assembler_option PARAMS ((const char *, int));
310 static void add_linker_option PARAMS ((const char *, int));
311 static void process_command PARAMS ((int, const char *const *));
312 static int execute PARAMS ((void));
313 static void clear_args PARAMS ((void));
314 static void fatal_error PARAMS ((int));
315 static void set_input PARAMS ((const char *));
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 const 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 *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1284 static const char *const 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 *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1290 static const char *const standard_startfile_prefix_1 = "/lib/";
1291 static const char *const standard_startfile_prefix_2 = "/usr/lib/";
1293 static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1294 static const char *tooldir_prefix;
1296 static const char *const 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, *nstore;
2289 size_t prefixlen = strlen (temp) + 1;
2293 nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
2295 startp = endp = temp;
2298 if (*endp == PATH_SEPARATOR || *endp == 0)
2303 nstore[1] = DIR_SEPARATOR;
2308 strncpy (nstore, startp, endp - startp);
2309 if (! IS_DIR_SEPARATOR (endp[-1]))
2311 nstore[endp - startp] = DIR_SEPARATOR;
2312 nstore[endp - startp + 1] = 0;
2315 nstore[endp - startp] = 0;
2317 strcat (nstore, progname);
2318 if (! access (nstore, X_OK)
2319 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2320 || ! access (strcat (nstore, HOST_EXECUTABLE_SUFFIX), X_OK)
2324 free_split_directories (prog_dirs);
2326 prog_dirs = split_directories (progname, &prog_num);
2332 endp = startp = endp + 1;
2340 /* Remove the program name from comparison of directory names. */
2343 /* Determine if the compiler is installed in the standard location, and if
2344 so, we don't need to specify relative directories. Also, if argv[0]
2345 doesn't contain any directory specifiers, there is not much we can do. */
2347 if (prog_num == bin_num)
2349 for (i = 0; i < bin_num; i++)
2351 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2355 if (prog_num <= 0 || i == bin_num)
2358 free_split_directories (prog_dirs);
2359 free_split_directories (bin_dirs);
2360 prog_dirs = bin_dirs = (char **) 0;
2365 prefix_dirs = split_directories (prefix, &prefix_num);
2367 /* Find how many directories are in common between bin_prefix & prefix. */
2368 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2369 for (common = 0; common < n; common++)
2371 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2375 /* If there are no common directories, there can be no relative prefix. */
2378 free_split_directories (prog_dirs);
2379 free_split_directories (bin_dirs);
2380 free_split_directories (prefix_dirs);
2384 /* Build up the pathnames in argv[0]. */
2385 for (i = 0; i < prog_num; i++)
2386 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2388 /* Now build up the ..'s. */
2389 for (i = common; i < n; i++)
2391 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2392 obstack_1grow (&obstack, DIR_SEPARATOR);
2395 /* Put in directories to move over to prefix. */
2396 for (i = common; i < prefix_num; i++)
2397 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2399 free_split_directories (prog_dirs);
2400 free_split_directories (bin_dirs);
2401 free_split_directories (prefix_dirs);
2403 obstack_1grow (&obstack, '\0');
2404 return obstack_finish (&obstack);
2408 /* Check whether NAME can be accessed in MODE. This is like access,
2409 except that it never considers directories to be executable. */
2412 access_check (name, mode)
2420 if (stat (name, &st) < 0
2421 || S_ISDIR (st.st_mode))
2425 return access (name, mode);
2428 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2429 access to check permissions.
2430 Return 0 if not found, otherwise return its name, allocated with malloc. */
2433 find_a_file (pprefix, name, mode)
2434 struct path_prefix *pprefix;
2439 const char *const file_suffix =
2440 ((mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : "");
2441 struct prefix_list *pl;
2442 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2444 #ifdef DEFAULT_ASSEMBLER
2445 if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2446 return xstrdup (DEFAULT_ASSEMBLER);
2449 #ifdef DEFAULT_LINKER
2450 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2451 return xstrdup (DEFAULT_LINKER);
2455 len += strlen (machine_suffix);
2457 temp = xmalloc (len);
2459 /* Determine the filename to execute (special case for absolute paths). */
2461 if (IS_ABSOLUTE_PATHNAME (name))
2463 if (access (name, mode) == 0)
2465 strcpy (temp, name);
2470 for (pl = pprefix->plist; pl; pl = pl->next)
2474 /* Some systems have a suffix for executable files.
2475 So try appending that first. */
2476 if (file_suffix[0] != 0)
2478 strcpy (temp, pl->prefix);
2479 strcat (temp, machine_suffix);
2480 strcat (temp, name);
2481 strcat (temp, file_suffix);
2482 if (access_check (temp, mode) == 0)
2484 if (pl->used_flag_ptr != 0)
2485 *pl->used_flag_ptr = 1;
2490 /* Now try just the name. */
2491 strcpy (temp, pl->prefix);
2492 strcat (temp, machine_suffix);
2493 strcat (temp, name);
2494 if (access_check (temp, mode) == 0)
2496 if (pl->used_flag_ptr != 0)
2497 *pl->used_flag_ptr = 1;
2502 /* Certain prefixes are tried with just the machine type,
2503 not the version. This is used for finding as, ld, etc. */
2504 if (just_machine_suffix && pl->require_machine_suffix == 2)
2506 /* Some systems have a suffix for executable files.
2507 So try appending that first. */
2508 if (file_suffix[0] != 0)
2510 strcpy (temp, pl->prefix);
2511 strcat (temp, just_machine_suffix);
2512 strcat (temp, name);
2513 strcat (temp, file_suffix);
2514 if (access_check (temp, mode) == 0)
2516 if (pl->used_flag_ptr != 0)
2517 *pl->used_flag_ptr = 1;
2522 strcpy (temp, pl->prefix);
2523 strcat (temp, just_machine_suffix);
2524 strcat (temp, name);
2525 if (access_check (temp, mode) == 0)
2527 if (pl->used_flag_ptr != 0)
2528 *pl->used_flag_ptr = 1;
2533 /* Certain prefixes can't be used without the machine suffix
2534 when the machine or version is explicitly specified. */
2535 if (! pl->require_machine_suffix)
2537 /* Some systems have a suffix for executable files.
2538 So try appending that first. */
2539 if (file_suffix[0] != 0)
2541 strcpy (temp, pl->prefix);
2542 strcat (temp, name);
2543 strcat (temp, file_suffix);
2544 if (access_check (temp, mode) == 0)
2546 if (pl->used_flag_ptr != 0)
2547 *pl->used_flag_ptr = 1;
2552 strcpy (temp, pl->prefix);
2553 strcat (temp, name);
2554 if (access_check (temp, mode) == 0)
2556 if (pl->used_flag_ptr != 0)
2557 *pl->used_flag_ptr = 1;
2567 /* Ranking of prefixes in the sort list. -B prefixes are put before
2570 enum path_prefix_priority
2572 PREFIX_PRIORITY_B_OPT,
2573 PREFIX_PRIORITY_LAST
2576 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2577 order according to PRIORITY. Within each PRIORITY, new entries are
2580 If WARN is nonzero, we will warn if no file is found
2581 through this prefix. WARN should point to an int
2582 which will be set to 1 if this entry is used.
2584 COMPONENT is the value to be passed to update_path.
2586 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2587 the complete value of machine_suffix.
2588 2 means try both machine_suffix and just_machine_suffix. */
2591 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2592 struct path_prefix *pprefix;
2594 const char *component;
2595 /* enum prefix_priority */ int priority;
2596 int require_machine_suffix;
2599 struct prefix_list *pl, **prev;
2602 for (prev = &pprefix->plist;
2603 (*prev) != NULL && (*prev)->priority <= priority;
2604 prev = &(*prev)->next)
2607 /* Keep track of the longest prefix */
2609 prefix = update_path (prefix, component);
2610 len = strlen (prefix);
2611 if (len > pprefix->max_len)
2612 pprefix->max_len = len;
2614 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2615 pl->prefix = prefix;
2616 pl->require_machine_suffix = require_machine_suffix;
2617 pl->used_flag_ptr = warn;
2618 pl->priority = priority;
2622 /* Insert after PREV */
2627 /* Execute the command specified by the arguments on the current line of spec.
2628 When using pipes, this includes several piped-together commands
2629 with `|' between them.
2631 Return 0 if successful, -1 if failed. */
2637 int n_commands; /* # of command. */
2641 const char *prog; /* program name. */
2642 const char **argv; /* vector of args. */
2643 int pid; /* pid of process for this command. */
2646 struct command *commands; /* each command buffer with above info. */
2648 /* Count # of piped commands. */
2649 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2650 if (strcmp (argbuf[i], "|") == 0)
2653 /* Get storage for each command. */
2654 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2656 /* Split argbuf into its separate piped processes,
2657 and record info about each one.
2658 Also search for the programs that are to be run. */
2660 commands[0].prog = argbuf[0]; /* first command. */
2661 commands[0].argv = &argbuf[0];
2662 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2665 commands[0].argv[0] = string;
2667 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2668 if (strcmp (argbuf[i], "|") == 0)
2669 { /* each command. */
2670 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2671 fatal ("-pipe not supported");
2673 argbuf[i] = 0; /* termination of command args. */
2674 commands[n_commands].prog = argbuf[i + 1];
2675 commands[n_commands].argv = &argbuf[i + 1];
2676 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2678 commands[n_commands].argv[0] = string;
2682 argbuf[argbuf_index] = 0;
2684 /* If -v, print what we are about to do, and maybe query. */
2688 /* For help listings, put a blank line between sub-processes. */
2689 if (print_help_list)
2690 fputc ('\n', stderr);
2692 /* Print each piped command as a separate line. */
2693 for (i = 0; i < n_commands; i++)
2695 const char *const *j;
2697 for (j = commands[i].argv; *j; j++)
2698 fprintf (stderr, " %s", *j);
2700 /* Print a pipe symbol after all but the last command. */
2701 if (i + 1 != n_commands)
2702 fprintf (stderr, " |");
2703 fprintf (stderr, "\n");
2707 notice ("\nGo ahead? (y or n) ");
2711 while (getchar () != '\n')
2714 if (i != 'y' && i != 'Y')
2719 /* Run each piped subprocess. */
2721 for (i = 0; i < n_commands; i++)
2723 char *errmsg_fmt, *errmsg_arg;
2724 const char *string = commands[i].argv[0];
2726 /* For some bizarre reason, the second argument of execvp() is
2727 char *const *, not const char *const *. */
2728 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2729 programname, temp_filename,
2730 &errmsg_fmt, &errmsg_arg,
2731 ((i == 0 ? PEXECUTE_FIRST : 0)
2732 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2733 | (string == commands[i].prog
2734 ? PEXECUTE_SEARCH : 0)
2735 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2737 if (commands[i].pid == -1)
2738 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2740 if (string != commands[i].prog)
2741 free ((PTR) string);
2746 /* Wait for all the subprocesses to finish.
2747 We don't care what order they finish in;
2748 we know that N_COMMANDS waits will get them all.
2749 Ignore subprocesses that we don't know about,
2750 since they can be spawned by the process that exec'ed us. */
2754 #ifdef HAVE_GETRUSAGE
2756 double ut = 0.0, st = 0.0;
2759 for (i = 0; i < n_commands;)
2765 pid = pwait (commands[i].pid, &status, 0);
2769 #ifdef HAVE_GETRUSAGE
2772 /* getrusage returns the total resource usage of all children
2773 up to now. Copy the previous values into prus, get the
2774 current statistics, then take the difference. */
2777 getrusage (RUSAGE_CHILDREN, &rus);
2778 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2779 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2780 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2782 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2783 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2784 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2788 for (j = 0; j < n_commands; j++)
2789 if (commands[j].pid == pid)
2792 if (WIFSIGNALED (status))
2795 /* SIGPIPE is a special case. It happens in -pipe mode
2796 when the compiler dies before the preprocessor is
2797 done, or the assembler dies before the compiler is
2798 done. There's generally been an error already, and
2799 this is just fallout. So don't generate another error
2800 unless we would otherwise have succeeded. */
2801 if (WTERMSIG (status) == SIGPIPE
2802 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2807 Internal error: %s (program %s)\n\
2808 Please submit a full bug report.\n\
2809 See %s for instructions.",
2810 strsignal (WTERMSIG (status)), commands[j].prog,
2815 else if (WIFEXITED (status)
2816 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2818 if (WEXITSTATUS (status) > greatest_status)
2819 greatest_status = WEXITSTATUS (status);
2822 #ifdef HAVE_GETRUSAGE
2823 if (report_times && ut + st != 0)
2824 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2833 /* Find all the switches given to us
2834 and make a vector describing them.
2835 The elements of the vector are strings, one per switch given.
2836 If a switch uses following arguments, then the `part1' field
2837 is the switch itself and the `args' field
2838 is a null-terminated vector containing the following arguments.
2839 The `live_cond' field is:
2841 1 if the switch is true in a conditional spec,
2842 -1 if false (overridden by a later switch)
2843 -2 if this switch should be ignored (used in %{<S})
2844 The `validated' field is nonzero if any spec has looked at this switch;
2845 if it remains zero at the end of the run, it must be meaningless. */
2848 #define SWITCH_FALSE -1
2849 #define SWITCH_IGNORE -2
2850 #define SWITCH_LIVE 1
2857 unsigned char validated;
2858 unsigned char ordering;
2861 static struct switchstr *switches;
2863 static int n_switches;
2868 const char *language;
2871 /* Also a vector of input files specified. */
2873 static struct infile *infiles;
2877 /* This counts the number of libraries added by lang_specific_driver, so that
2878 we can tell if there were any user supplied any files or libraries. */
2880 static int added_libraries;
2882 /* And a vector of corresponding output files is made up later. */
2884 const char **outfiles;
2886 /* Used to track if none of the -B paths are used. */
2889 /* Used to track if standard path isn't used and -b or -V is specified. */
2890 static int warn_std;
2892 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2893 static int *warn_std_ptr = 0;
2895 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2897 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2898 is true if we should look for an executable suffix as well. */
2901 convert_filename (name, do_exe)
2911 len = strlen (name);
2913 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2914 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2916 && name[len - 2] == '.'
2917 && name[len - 1] == 'o')
2919 obstack_grow (&obstack, name, len - 2);
2920 obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
2921 name = obstack_finish (&obstack);
2925 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2926 /* If there is no filetype, make it the executable suffix (which includes
2927 the "."). But don't get confused if we have just "-o". */
2928 if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2931 for (i = len - 1; i >= 0; i--)
2932 if (IS_DIR_SEPARATOR (name[i]))
2935 for (i++; i < len; i++)
2939 obstack_grow (&obstack, name, len);
2940 obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
2941 strlen (TARGET_EXECUTABLE_SUFFIX));
2942 name = obstack_finish (&obstack);
2949 /* Display the command line switches accepted by gcc. */
2953 printf (_("Usage: %s [options] file...\n"), programname);
2954 fputs (_("Options:\n"), stdout);
2956 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2957 fputs (_(" --help Display this information\n"), stdout);
2958 fputs (_(" --target-help Display target specific command line options\n"), stdout);
2960 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2961 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2962 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2963 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2964 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2965 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2966 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2967 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2968 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2970 -print-multi-lib Display the mapping between command line options and\n\
2971 multiple library search directories\n"), stdout);
2972 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2973 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2974 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2975 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2976 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2977 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2978 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2979 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2980 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2981 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2982 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2983 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2984 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2985 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2986 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2987 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2988 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2990 -x <language> Specify the language of the following input files\n\
2991 Permissable languages include: c c++ assembler none\n\
2992 'none' means revert to the default behaviour of\n\
2993 guessing the language based on the file's extension\n\
2997 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2998 passed on to the various sub-processes invoked by %s. In order to pass\n\
2999 other options on to these processes the -W<letter> options must be used.\n\
3002 /* The rest of the options are displayed by invocations of the various
3007 add_preprocessor_option (option, len)
3011 n_preprocessor_options++;
3013 if (! preprocessor_options)
3014 preprocessor_options
3015 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
3017 preprocessor_options
3018 = (char **) xrealloc (preprocessor_options,
3019 n_preprocessor_options * sizeof (char *));
3021 preprocessor_options [n_preprocessor_options - 1] =
3022 save_string (option, len);
3026 add_assembler_option (option, len)
3030 n_assembler_options++;
3032 if (! assembler_options)
3034 = (char **) xmalloc (n_assembler_options * sizeof (char *));
3037 = (char **) xrealloc (assembler_options,
3038 n_assembler_options * sizeof (char *));
3040 assembler_options [n_assembler_options - 1] = save_string (option, len);
3044 add_linker_option (option, len)
3050 if (! linker_options)
3052 = (char **) xmalloc (n_linker_options * sizeof (char *));
3055 = (char **) xrealloc (linker_options,
3056 n_linker_options * sizeof (char *));
3058 linker_options [n_linker_options - 1] = save_string (option, len);
3061 /* Create the vector `switches' and its contents.
3062 Store its length in `n_switches'. */
3065 process_command (argc, argv)
3067 const char *const *argv;
3072 const char *spec_lang = 0;
3073 int last_language_n_infiles;
3076 int lang_n_infiles = 0;
3077 #ifdef MODIFY_TARGET_NAME
3078 int is_modify_target_name;
3082 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
3086 added_libraries = 0;
3088 /* Figure compiler version from version string. */
3090 compiler_version = temp1 = xstrdup (version_string);
3092 for (; *temp1; ++temp1)
3101 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3102 see if we can create it from the pathname specified in argv[0]. */
3105 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3106 if (!gcc_exec_prefix)
3108 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
3109 standard_exec_prefix);
3110 if (gcc_exec_prefix)
3111 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
3115 if (gcc_exec_prefix)
3117 int len = strlen (gcc_exec_prefix);
3119 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
3120 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
3122 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
3123 if (IS_DIR_SEPARATOR (*temp)
3124 && strncmp (temp + 1, "lib", 3) == 0
3125 && IS_DIR_SEPARATOR (temp[4])
3126 && strncmp (temp + 5, "gcc-lib", 7) == 0)
3127 len -= sizeof ("/lib/gcc-lib/") - 1;
3130 set_std_prefix (gcc_exec_prefix, len);
3131 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
3132 PREFIX_PRIORITY_LAST, 0, NULL);
3133 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
3134 PREFIX_PRIORITY_LAST, 0, NULL);
3137 /* COMPILER_PATH and LIBRARY_PATH have values
3138 that are lists of directory names with colons. */
3140 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
3143 const char *startp, *endp;
3144 char *nstore = (char *) alloca (strlen (temp) + 3);
3146 startp = endp = temp;
3149 if (*endp == PATH_SEPARATOR || *endp == 0)
3151 strncpy (nstore, startp, endp - startp);
3153 strcpy (nstore, concat (".", dir_separator_str, NULL));
3154 else if (!IS_DIR_SEPARATOR (endp[-1]))
3156 nstore[endp - startp] = DIR_SEPARATOR;
3157 nstore[endp - startp + 1] = 0;
3160 nstore[endp - startp] = 0;
3161 add_prefix (&exec_prefixes, nstore, 0,
3162 PREFIX_PRIORITY_LAST, 0, NULL);
3163 add_prefix (&include_prefixes,
3164 concat (nstore, "include", NULL),
3165 0, PREFIX_PRIORITY_LAST, 0, NULL);
3168 endp = startp = endp + 1;
3175 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
3176 if (temp && *cross_compile == '0')
3178 const char *startp, *endp;
3179 char *nstore = (char *) alloca (strlen (temp) + 3);
3181 startp = endp = temp;
3184 if (*endp == PATH_SEPARATOR || *endp == 0)
3186 strncpy (nstore, startp, endp - startp);
3188 strcpy (nstore, concat (".", dir_separator_str, NULL));
3189 else if (!IS_DIR_SEPARATOR (endp[-1]))
3191 nstore[endp - startp] = DIR_SEPARATOR;
3192 nstore[endp - startp + 1] = 0;
3195 nstore[endp - startp] = 0;
3196 add_prefix (&startfile_prefixes, nstore, NULL,
3197 PREFIX_PRIORITY_LAST, 0, NULL);
3200 endp = startp = endp + 1;
3207 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3208 GET_ENV_PATH_LIST (temp, "LPATH");
3209 if (temp && *cross_compile == '0')
3211 const char *startp, *endp;
3212 char *nstore = (char *) alloca (strlen (temp) + 3);
3214 startp = endp = temp;
3217 if (*endp == PATH_SEPARATOR || *endp == 0)
3219 strncpy (nstore, startp, endp - startp);
3221 strcpy (nstore, concat (".", dir_separator_str, NULL));
3222 else if (!IS_DIR_SEPARATOR (endp[-1]))
3224 nstore[endp - startp] = DIR_SEPARATOR;
3225 nstore[endp - startp + 1] = 0;
3228 nstore[endp - startp] = 0;
3229 add_prefix (&startfile_prefixes, nstore, NULL,
3230 PREFIX_PRIORITY_LAST, 0, NULL);
3233 endp = startp = endp + 1;
3240 /* Convert new-style -- options to old-style. */
3241 translate_options (&argc, &argv);
3243 /* Do language-specific adjustment/addition of flags. */
3244 lang_specific_driver (&argc, &argv, &added_libraries);
3246 /* Scan argv twice. Here, the first time, just count how many switches
3247 there will be in their vector, and how many input files in theirs.
3248 Also parse any switches that determine the configuration name, such as -b.
3249 Here we also parse the switches that cc itself uses (e.g. -v). */
3251 for (i = 1; i < argc; i++)
3253 if (! strcmp (argv[i], "-dumpspecs"))
3255 struct spec_list *sl;
3257 for (sl = specs; sl; sl = sl->next)
3258 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3259 if (link_command_spec)
3260 printf ("*link_command:\n%s\n\n", link_command_spec);
3263 else if (! strcmp (argv[i], "-dumpversion"))
3265 printf ("%s\n", spec_version);
3268 else if (! strcmp (argv[i], "-dumpmachine"))
3270 printf ("%s\n", spec_machine);
3273 else if (strcmp (argv[i], "-fhelp") == 0)
3275 /* translate_options () has turned --help into -fhelp. */
3276 print_help_list = 1;
3278 /* We will be passing a dummy file on to the sub-processes. */
3282 add_preprocessor_option ("--help", 6);
3283 add_assembler_option ("--help", 6);
3284 add_linker_option ("--help", 6);
3286 else if (strcmp (argv[i], "-ftarget-help") == 0)
3288 /* translate_options() has turned --target-help into -ftarget-help. */
3289 target_help_flag = 1;
3291 /* We will be passing a dummy file on to the sub-processes. */
3295 add_preprocessor_option ("--target-help", 13);
3296 add_assembler_option ("--target-help", 13);
3297 add_linker_option ("--target-help", 13);
3299 else if (! strcmp (argv[i], "-pass-exit-codes"))
3301 pass_exit_codes = 1;
3304 else if (! strcmp (argv[i], "-print-search-dirs"))
3305 print_search_dirs = 1;
3306 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3307 print_file_name = "libgcc.a";
3308 else if (! strncmp (argv[i], "-print-file-name=", 17))
3309 print_file_name = argv[i] + 17;
3310 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3311 print_prog_name = argv[i] + 17;
3312 else if (! strcmp (argv[i], "-print-multi-lib"))
3313 print_multi_lib = 1;
3314 else if (! strcmp (argv[i], "-print-multi-directory"))
3315 print_multi_directory = 1;
3316 else if (! strncmp (argv[i], "-Wa,", 4))
3319 /* Pass the rest of this option to the assembler. */
3321 /* Split the argument at commas. */
3323 for (j = 4; argv[i][j]; j++)
3324 if (argv[i][j] == ',')
3326 add_assembler_option (argv[i] + prev, j - prev);
3330 /* Record the part after the last comma. */
3331 add_assembler_option (argv[i] + prev, j - prev);
3333 else if (! strncmp (argv[i], "-Wp,", 4))
3336 /* Pass the rest of this option to the preprocessor. */
3338 /* Split the argument at commas. */
3340 for (j = 4; argv[i][j]; j++)
3341 if (argv[i][j] == ',')
3343 add_preprocessor_option (argv[i] + prev, j - prev);
3347 /* Record the part after the last comma. */
3348 add_preprocessor_option (argv[i] + prev, j - prev);
3350 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3351 /* The +e options to the C++ front-end. */
3353 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3356 /* Split the argument at commas. */
3357 for (j = 3; argv[i][j]; j++)
3358 n_infiles += (argv[i][j] == ',');
3360 else if (strcmp (argv[i], "-Xlinker") == 0)
3363 fatal ("argument to `-Xlinker' is missing");
3368 else if (strcmp (argv[i], "-l") == 0)
3371 fatal ("argument to `-l' is missing");
3376 else if (strncmp (argv[i], "-l", 2) == 0)
3378 else if (strcmp (argv[i], "-save-temps") == 0)
3380 save_temps_flag = 1;
3383 else if (strcmp (argv[i], "-specs") == 0)
3385 struct user_specs *user = (struct user_specs *)
3386 xmalloc (sizeof (struct user_specs));
3388 fatal ("argument to `-specs' is missing");
3390 user->next = (struct user_specs *) 0;
3391 user->filename = argv[i];
3392 if (user_specs_tail)
3393 user_specs_tail->next = user;
3395 user_specs_head = user;
3396 user_specs_tail = user;
3398 else if (strncmp (argv[i], "-specs=", 7) == 0)
3400 struct user_specs *user = (struct user_specs *)
3401 xmalloc (sizeof (struct user_specs));
3402 if (strlen (argv[i]) == 7)
3403 fatal ("argument to `-specs=' is missing");
3405 user->next = (struct user_specs *) 0;
3406 user->filename = argv[i] + 7;
3407 if (user_specs_tail)
3408 user_specs_tail->next = user;
3410 user_specs_head = user;
3411 user_specs_tail = user;
3413 else if (strcmp (argv[i], "-time") == 0)
3415 else if (argv[i][0] == '-' && argv[i][1] != 0)
3417 register const char *p = &argv[i][1];
3418 register int c = *p;
3424 if (p[1] == 0 && i + 1 == argc)
3425 fatal ("argument to `-b' is missing");
3427 spec_machine = argv[++i];
3429 spec_machine = p + 1;
3431 warn_std_ptr = &warn_std;
3439 if (p[1] == 0 && i + 1 == argc)
3440 fatal ("argument to `-B' is missing");
3446 len = strlen (value);
3448 /* Catch the case where the user has forgotten to append a
3449 directory seperator to the path. Note, they may be using
3450 -B to add an executable name prefix, eg "i386-elf-", in
3451 order to distinguish between multiple installations of
3452 GCC in the same directory. Hence we must check to see
3453 if appending a directory separator actually makes a
3454 valid directory name. */
3455 if (! IS_DIR_SEPARATOR (value [len - 1])
3456 && is_directory (value, "", 0))
3458 char *tmp = xmalloc (len + 2);
3459 strcpy (tmp, value);
3460 tmp[len] = DIR_SEPARATOR;
3465 /* As a kludge, if the arg is "[foo/]stageN/", just
3466 add "[foo/]include" to the include prefix. */
3469 && (IS_DIR_SEPARATOR (value[len - 8]))))
3470 && strncmp (value + len - 7, "stage", 5) == 0
3471 && ISDIGIT (value[len - 2])
3472 && (IS_DIR_SEPARATOR (value[len - 1])))
3475 add_prefix (&include_prefixes, "include", NULL,
3476 PREFIX_PRIORITY_B_OPT, 0, NULL);
3479 char * string = xmalloc (len + 1);
3481 strncpy (string, value, len - 7);
3482 strcpy (string + len - 7, "include");
3483 add_prefix (&include_prefixes, string, NULL,
3484 PREFIX_PRIORITY_B_OPT, 0, NULL);
3488 add_prefix (&exec_prefixes, value, NULL,
3489 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3490 add_prefix (&startfile_prefixes, value, NULL,
3491 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3492 add_prefix (&include_prefixes, concat (value, "include", NULL),
3493 NULL, PREFIX_PRIORITY_B_OPT, 0, NULL);
3498 case 'v': /* Print our subcommands and print versions. */
3500 /* If they do anything other than exactly `-v', don't set
3501 verbose_flag; rather, continue on to give the error. */
3509 if (p[1] == 0 && i + 1 == argc)
3510 fatal ("argument to `-V' is missing");
3512 spec_version = argv[++i];
3514 spec_version = p + 1;
3515 compiler_version = spec_version;
3516 warn_std_ptr = &warn_std;
3518 /* Validate the version number. Use the same checks
3519 done when inserting it into a spec.
3521 The format of the version string is
3522 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3524 const char *v = compiler_version;
3526 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3527 while (! ISDIGIT (*v))
3530 if (v > compiler_version && v[-1] != '-')
3531 fatal ("invalid version number format");
3533 /* Set V after the first period. */
3534 while (ISDIGIT (*v))
3538 fatal ("invalid version number format");
3541 while (ISDIGIT (*v))
3544 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3545 fatal ("invalid version number format");
3561 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3566 /* Forward scan, just in case -S or -c is specified
3573 if (argv[j][0] == '-')
3575 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3581 else if ((skip = SWITCH_TAKES_ARG (argv[j][1])))
3582 j += skip - (argv[j][2] != 0);
3583 else if ((skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1)))
3590 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3592 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3594 argv[i] = convert_filename (argv[i], ! have_c);
3601 #ifdef MODIFY_TARGET_NAME
3602 is_modify_target_name = 0;
3605 j < sizeof modify_target / sizeof modify_target[0]; j++)
3606 if (! strcmp (argv[i], modify_target[j].sw))
3609 = (char *) xmalloc (strlen (modify_target[j].str)
3610 + strlen (spec_machine));
3613 int made_addition = 0;
3615 is_modify_target_name = 1;
3616 for (p = spec_machine, q = new_name; *p != 0; )
3618 if (modify_target[j].add_del == DELETE
3619 && (! strncmp (q, modify_target[j].str,
3620 strlen (modify_target[j].str))))
3621 p += strlen (modify_target[j].str);
3622 else if (modify_target[j].add_del == ADD
3623 && ! made_addition && *p == '-')
3625 for (r = modify_target[j].str; *r != 0; )
3633 spec_machine = new_name;
3636 if (is_modify_target_name)
3642 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3643 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3644 else if (WORD_SWITCH_TAKES_ARG (p))
3645 i += WORD_SWITCH_TAKES_ARG (p);
3655 if (have_c && have_o && lang_n_infiles > 1)
3656 fatal ("cannot specify -o with -c or -S and multiple compilations");
3658 /* Set up the search paths before we go looking for config files. */
3660 /* These come before the md prefixes so that we will find gcc's subcommands
3661 (such as cpp) rather than those of the host system. */
3662 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3663 as well as trying the machine and the version. */
3665 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3666 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3667 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3668 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3669 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3670 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3673 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3674 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3675 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3676 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3678 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3679 dir_separator_str, NULL);
3681 /* If tooldir is relative, base it on exec_prefixes. A relative
3682 tooldir lets us move the installed tree as a unit.
3684 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3685 directories, so that we can search both the user specified directory
3686 and the standard place. */
3688 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix))
3690 if (gcc_exec_prefix)
3692 char *gcc_exec_tooldir_prefix
3693 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3694 spec_version, dir_separator_str, tooldir_prefix, NULL);
3696 add_prefix (&exec_prefixes,
3697 concat (gcc_exec_tooldir_prefix, "bin",
3698 dir_separator_str, NULL),
3699 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3700 add_prefix (&startfile_prefixes,
3701 concat (gcc_exec_tooldir_prefix, "lib",
3702 dir_separator_str, NULL),
3703 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
3706 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3707 dir_separator_str, spec_version,
3708 dir_separator_str, tooldir_prefix, NULL);
3711 add_prefix (&exec_prefixes,
3712 concat (tooldir_prefix, "bin", dir_separator_str, NULL),
3713 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3714 add_prefix (&startfile_prefixes,
3715 concat (tooldir_prefix, "lib", dir_separator_str, NULL),
3716 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
3718 /* More prefixes are enabled in main, after we read the specs file
3719 and determine whether this is cross-compilation or not. */
3721 /* Then create the space for the vectors and scan again. */
3723 switches = ((struct switchstr *)
3724 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3725 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3728 last_language_n_infiles = -1;
3730 /* This, time, copy the text of each switch and store a pointer
3731 to the copy in the vector of switches.
3732 Store all the infiles in their vector. */
3734 for (i = 1; i < argc; i++)
3736 /* Just skip the switches that were handled by the preceding loop. */
3737 #ifdef MODIFY_TARGET_NAME
3738 is_modify_target_name = 0;
3740 for (j = 0; j < sizeof modify_target / sizeof modify_target[0]; j++)
3741 if (! strcmp (argv[i], modify_target[j].sw))
3742 is_modify_target_name = 1;
3744 if (is_modify_target_name)
3748 if (! strncmp (argv[i], "-Wa,", 4))
3750 else if (! strncmp (argv[i], "-Wp,", 4))
3752 else if (! strcmp (argv[i], "-pass-exit-codes"))
3754 else if (! strcmp (argv[i], "-print-search-dirs"))
3756 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3758 else if (! strncmp (argv[i], "-print-file-name=", 17))
3760 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3762 else if (! strcmp (argv[i], "-print-multi-lib"))
3764 else if (! strcmp (argv[i], "-print-multi-directory"))
3766 else if (strcmp (argv[i], "-ftarget-help") == 0)
3768 /* Create a dummy input file, so that we can pass --target-help on to
3769 the various sub-processes. */
3770 infiles[n_infiles].language = "c";
3771 infiles[n_infiles++].name = "target-dummy";
3773 /* Preserve the --target-help switch so that it can be caught by
3774 the cc1 spec string. */
3775 switches[n_switches].part1 = "--target-help";
3776 switches[n_switches].args = 0;
3777 switches[n_switches].live_cond = SWITCH_OK;
3778 switches[n_switches].validated = 0;
3782 else if (strcmp (argv[i], "-fhelp") == 0)
3786 /* Create a dummy input file, so that we can pass --help on to
3787 the various sub-processes. */
3788 infiles[n_infiles].language = "c";
3789 infiles[n_infiles++].name = "help-dummy";
3791 /* Preserve the --help switch so that it can be caught by the
3793 switches[n_switches].part1 = "--help";
3794 switches[n_switches].args = 0;
3795 switches[n_switches].live_cond = SWITCH_OK;
3796 switches[n_switches].validated = 0;
3801 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3803 /* Compensate for the +e options to the C++ front-end;
3804 they're there simply for cfront call-compatibility. We do
3805 some magic in default_compilers to pass them down properly.
3806 Note we deliberately start at the `+' here, to avoid passing
3807 -e0 or -e1 down into the linker. */
3808 switches[n_switches].part1 = &argv[i][0];
3809 switches[n_switches].args = 0;
3810 switches[n_switches].live_cond = SWITCH_OK;
3811 switches[n_switches].validated = 0;
3814 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3817 /* Split the argument at commas. */
3819 for (j = 4; argv[i][j]; j++)
3820 if (argv[i][j] == ',')
3822 infiles[n_infiles].language = "*";
3823 infiles[n_infiles++].name
3824 = save_string (argv[i] + prev, j - prev);
3827 /* Record the part after the last comma. */
3828 infiles[n_infiles].language = "*";
3829 infiles[n_infiles++].name = argv[i] + prev;
3831 else if (strcmp (argv[i], "-Xlinker") == 0)
3833 infiles[n_infiles].language = "*";
3834 infiles[n_infiles++].name = argv[++i];
3836 else if (strcmp (argv[i], "-l") == 0)
3837 { /* POSIX allows separation of -l and the lib arg;
3838 canonicalize by concatenating -l with its arg */
3839 infiles[n_infiles].language = "*";
3840 infiles[n_infiles++].name = concat ("-l", argv[++i], NULL);
3842 else if (strncmp (argv[i], "-l", 2) == 0)
3844 infiles[n_infiles].language = "*";
3845 infiles[n_infiles++].name = argv[i];
3847 else if (strcmp (argv[i], "-specs") == 0)
3849 else if (strncmp (argv[i], "-specs=", 7) == 0)
3851 else if (strcmp (argv[i], "-time") == 0)
3853 else if ((save_temps_flag || report_times)
3854 && strcmp (argv[i], "-pipe") == 0)
3856 /* -save-temps overrides -pipe, so that temp files are produced */
3857 if (save_temps_flag)
3858 error ("Warning: -pipe ignored because -save-temps specified");
3859 /* -time overrides -pipe because we can't get correct stats when
3860 multiple children are running at once. */
3861 else if (report_times)
3862 error ("Warning: -pipe ignored because -time specified");
3864 else if (argv[i][0] == '-' && argv[i][1] != 0)
3866 const char *p = &argv[i][1];
3871 if (p[1] == 0 && i + 1 == argc)
3872 fatal ("argument to `-x' is missing");
3874 spec_lang = argv[++i];
3877 if (! strcmp (spec_lang, "none"))
3878 /* Suppress the warning if -xnone comes after the last input
3879 file, because alternate command interfaces like g++ might
3880 find it useful to place -xnone after each input file. */
3883 last_language_n_infiles = n_infiles;
3886 switches[n_switches].part1 = p;
3887 /* Deal with option arguments in separate argv elements. */
3888 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3889 || WORD_SWITCH_TAKES_ARG (p))
3892 int n_args = WORD_SWITCH_TAKES_ARG (p);
3896 /* Count only the option arguments in separate argv elements. */
3897 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3899 if (i + n_args >= argc)
3900 fatal ("argument to `-%s' is missing", p);
3901 switches[n_switches].args
3902 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3904 switches[n_switches].args[j++] = argv[++i];
3905 /* Null-terminate the vector. */
3906 switches[n_switches].args[j] = 0;
3908 else if (strchr (switches_need_spaces, c))
3910 /* On some systems, ld cannot handle some options without
3911 a space. So split the option from its argument. */
3912 char *part1 = (char *) xmalloc (2);
3917 switches[n_switches].part1 = part1;
3918 switches[n_switches].args
3919 = (const char **) xmalloc (2 * sizeof (const char *));
3920 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3921 strcpy (tmp, &p[1]);
3922 switches[n_switches].args[1] = 0;
3925 switches[n_switches].args = 0;
3927 switches[n_switches].live_cond = SWITCH_OK;
3928 switches[n_switches].validated = 0;
3929 switches[n_switches].ordering = 0;
3930 /* These are always valid, since gcc.c itself understands it. */
3931 if (!strcmp (p, "save-temps")
3932 || !strcmp (p, "static-libgcc")
3933 || !strcmp (p, "shared-libgcc"))
3934 switches[n_switches].validated = 1;
3937 char ch = switches[n_switches].part1[0];
3938 if (ch == 'V' || ch == 'b' || ch == 'B')
3939 switches[n_switches].validated = 1;
3945 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3946 argv[i] = convert_filename (argv[i], 0);
3949 if (strcmp (argv[i], "-") != 0 && access (argv[i], F_OK) < 0)
3951 perror_with_name (argv[i]);
3956 infiles[n_infiles].language = spec_lang;
3957 infiles[n_infiles++].name = argv[i];
3962 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3963 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3965 switches[n_switches].part1 = 0;
3966 infiles[n_infiles].name = 0;
3969 /* Process a spec string, accumulating and running commands. */
3971 /* These variables describe the input file name.
3972 input_file_number is the index on outfiles of this file,
3973 so that the output file name can be stored for later use by %o.
3974 input_basename is the start of the part of the input file
3975 sans all directory names, and basename_length is the number
3976 of characters starting there excluding the suffix .c or whatever. */
3978 const char *input_filename;
3979 static int input_file_number;
3980 size_t input_filename_length;
3981 static int basename_length;
3982 static int suffixed_basename_length;
3983 static const char *input_basename;
3984 static const char *input_suffix;
3986 /* The compiler used to process the current input file. */
3987 static struct compiler *input_file_compiler;
3989 /* These are variables used within do_spec and do_spec_1. */
3991 /* Nonzero if an arg has been started and not yet terminated
3992 (with space, tab or newline). */
3993 static int arg_going;
3995 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3996 is a temporary file name. */
3997 static int delete_this_arg;
3999 /* Nonzero means %w has been seen; the next arg to be terminated
4000 is the output file name of this compilation. */
4001 static int this_is_output_file;
4003 /* Nonzero means %s has been seen; the next arg to be terminated
4004 is the name of a library file and we should try the standard
4005 search dirs for it. */
4006 static int this_is_library_file;
4008 /* Nonzero means that the input of this command is coming from a pipe. */
4009 static int input_from_pipe;
4011 /* Nonnull means substitute this for any suffix when outputting a switches
4013 static const char *suffix_subst;
4015 /* Process the spec SPEC and run the commands specified therein.
4016 Returns 0 if the spec is successfully processed; -1 if failed. */
4026 delete_this_arg = 0;
4027 this_is_output_file = 0;
4028 this_is_library_file = 0;
4029 input_from_pipe = 0;
4030 suffix_subst = NULL;
4032 value = do_spec_1 (spec, 0, NULL);
4034 /* Force out any unfinished command.
4035 If -pipe, this forces out the last command if it ended in `|'. */
4038 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4041 if (argbuf_index > 0)
4048 /* Process the sub-spec SPEC as a portion of a larger spec.
4049 This is like processing a whole spec except that we do
4050 not initialize at the beginning and we do not supply a
4051 newline by default at the end.
4052 INSWITCH nonzero means don't process %-sequences in SPEC;
4053 in this case, % is treated as an ordinary character.
4054 This is used while substituting switches.
4055 INSWITCH nonzero also causes SPC not to terminate an argument.
4057 Value is zero unless a line was finished
4058 and the command on that line reported an error. */
4061 do_spec_1 (spec, inswitch, soft_matched_part)
4064 const char *soft_matched_part;
4066 register const char *p = spec;
4073 /* If substituting a switch, treat all chars like letters.
4074 Otherwise, NL, SPC, TAB and % are special. */
4075 switch (inswitch ? 'a' : c)
4078 /* End of line: finish any pending argument,
4079 then run the pending command if one has been started. */
4082 obstack_1grow (&obstack, 0);
4083 string = obstack_finish (&obstack);
4084 if (this_is_library_file)
4085 string = find_file (string);
4086 store_arg (string, delete_this_arg, this_is_output_file);
4087 if (this_is_output_file)
4088 outfiles[input_file_number] = string;
4092 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
4094 for (i = 0; i < n_switches; i++)
4095 if (!strcmp (switches[i].part1, "pipe"))
4098 /* A `|' before the newline means use a pipe here,
4099 but only if -pipe was specified.
4100 Otherwise, execute now and don't pass the `|' as an arg. */
4103 input_from_pipe = 1;
4104 switches[i].validated = 1;
4111 if (argbuf_index > 0)
4117 /* Reinitialize for a new command, and for a new argument. */
4120 delete_this_arg = 0;
4121 this_is_output_file = 0;
4122 this_is_library_file = 0;
4123 input_from_pipe = 0;
4127 /* End any pending argument. */
4130 obstack_1grow (&obstack, 0);
4131 string = obstack_finish (&obstack);
4132 if (this_is_library_file)
4133 string = find_file (string);
4134 store_arg (string, delete_this_arg, this_is_output_file);
4135 if (this_is_output_file)
4136 outfiles[input_file_number] = string;
4140 obstack_1grow (&obstack, c);
4146 /* Space or tab ends an argument if one is pending. */
4149 obstack_1grow (&obstack, 0);
4150 string = obstack_finish (&obstack);
4151 if (this_is_library_file)
4152 string = find_file (string);
4153 store_arg (string, delete_this_arg, this_is_output_file);
4154 if (this_is_output_file)
4155 outfiles[input_file_number] = string;
4157 /* Reinitialize for a new argument. */
4159 delete_this_arg = 0;
4160 this_is_output_file = 0;
4161 this_is_library_file = 0;
4168 fatal ("Invalid specification! Bug in cc.");
4171 obstack_grow (&obstack, input_basename, basename_length);
4176 obstack_grow (&obstack, input_basename, suffixed_basename_length);
4181 delete_this_arg = 2;
4184 /* Dump out the directories specified with LIBRARY_PATH,
4185 followed by the absolute directories
4186 that we search for startfiles. */
4189 struct prefix_list *pl = startfile_prefixes.plist;
4190 size_t bufsize = 100;
4191 char *buffer = (char *) xmalloc (bufsize);
4194 for (; pl; pl = pl->next)
4196 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4197 /* Used on systems which record the specified -L dirs
4198 and use them to search for dynamic linking. */
4199 /* Relative directories always come from -B,
4200 and it is better not to use them for searching
4201 at run time. In particular, stage1 loses. */
4202 if (!IS_ABSOLUTE_PATHNAME (pl->prefix))
4205 /* Try subdirectory if there is one. */
4206 if (multilib_dir != NULL)
4210 if (strlen (pl->prefix) + strlen (machine_suffix)
4212 bufsize = (strlen (pl->prefix)
4213 + strlen (machine_suffix)) * 2 + 1;
4214 buffer = (char *) xrealloc (buffer, bufsize);
4215 strcpy (buffer, pl->prefix);
4216 strcat (buffer, machine_suffix);
4217 if (is_directory (buffer, multilib_dir, 1))
4219 do_spec_1 ("-L", 0, NULL);
4220 #ifdef SPACE_AFTER_L_OPTION
4221 do_spec_1 (" ", 0, NULL);
4223 do_spec_1 (buffer, 1, NULL);
4224 do_spec_1 (multilib_dir, 1, NULL);
4225 /* Make this a separate argument. */
4226 do_spec_1 (" ", 0, NULL);
4229 if (!pl->require_machine_suffix)
4231 if (is_directory (pl->prefix, multilib_dir, 1))
4233 do_spec_1 ("-L", 0, NULL);
4234 #ifdef SPACE_AFTER_L_OPTION
4235 do_spec_1 (" ", 0, NULL);
4237 do_spec_1 (pl->prefix, 1, NULL);
4238 do_spec_1 (multilib_dir, 1, NULL);
4239 /* Make this a separate argument. */
4240 do_spec_1 (" ", 0, NULL);
4246 if (is_directory (pl->prefix, machine_suffix, 1))
4248 do_spec_1 ("-L", 0, NULL);
4249 #ifdef SPACE_AFTER_L_OPTION
4250 do_spec_1 (" ", 0, NULL);
4252 do_spec_1 (pl->prefix, 1, NULL);
4253 /* Remove slash from machine_suffix. */
4254 if (strlen (machine_suffix) >= bufsize)
4255 bufsize = strlen (machine_suffix) * 2 + 1;
4256 buffer = (char *) xrealloc (buffer, bufsize);
4257 strcpy (buffer, machine_suffix);
4258 idx = strlen (buffer);
4259 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4260 buffer[idx - 1] = 0;
4261 do_spec_1 (buffer, 1, NULL);
4262 /* Make this a separate argument. */
4263 do_spec_1 (" ", 0, NULL);
4266 if (!pl->require_machine_suffix)
4268 if (is_directory (pl->prefix, "", 1))
4270 do_spec_1 ("-L", 0, NULL);
4271 #ifdef SPACE_AFTER_L_OPTION
4272 do_spec_1 (" ", 0, NULL);
4274 /* Remove slash from pl->prefix. */
4275 if (strlen (pl->prefix) >= bufsize)
4276 bufsize = strlen (pl->prefix) * 2 + 1;
4277 buffer = (char *) xrealloc (buffer, bufsize);
4278 strcpy (buffer, pl->prefix);
4279 idx = strlen (buffer);
4280 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
4281 buffer[idx - 1] = 0;
4282 do_spec_1 (buffer, 1, NULL);
4283 /* Make this a separate argument. */
4284 do_spec_1 (" ", 0, NULL);
4293 /* %efoo means report an error with `foo' as error message
4294 and don't execute any more commands for this file. */
4298 while (*p != 0 && *p != '\n')
4300 buf = (char *) alloca (p - q + 1);
4301 strncpy (buf, q, p - q);
4308 /* %nfoo means report an notice with `foo' on stderr. */
4312 while (*p != 0 && *p != '\n')
4314 buf = (char *) alloca (p - q + 1);
4315 strncpy (buf, q, p - q);
4317 notice ("%s\n", buf);
4327 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4328 and it is not a directory, and it is writable, use it.
4329 Otherwise, fall through and treat this like any other
4332 if ((!save_temps_flag)
4333 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
4334 && (access (HOST_BIT_BUCKET, W_OK) == 0))
4336 obstack_grow (&obstack, HOST_BIT_BUCKET,
4337 strlen (HOST_BIT_BUCKET));
4338 delete_this_arg = 0;
4346 if (save_temps_flag)
4348 obstack_grow (&obstack, input_basename, basename_length);
4349 delete_this_arg = 0;
4353 struct temp_name *t;
4355 const char *suffix = p;
4356 char *saved_suffix = NULL;
4358 while (*p == '.' || ISALPHA ((unsigned char) *p))
4360 suffix_length = p - suffix;
4361 if (p[0] == '%' && p[1] == 'O')
4364 /* We don't support extra suffix characters after %O. */
4365 if (*p == '.' || ISALPHA ((unsigned char) *p))
4367 if (suffix_length == 0)
4368 suffix = TARGET_OBJECT_SUFFIX;
4372 = (char *) xmalloc (suffix_length
4373 + strlen (TARGET_OBJECT_SUFFIX));
4374 strncpy (saved_suffix, suffix, suffix_length);
4375 strcpy (saved_suffix + suffix_length,
4376 TARGET_OBJECT_SUFFIX);
4378 suffix_length += strlen (TARGET_OBJECT_SUFFIX);
4381 /* See if we already have an association of %g/%u/%U and
4383 for (t = temp_names; t; t = t->next)
4384 if (t->length == suffix_length
4385 && strncmp (t->suffix, suffix, suffix_length) == 0
4386 && t->unique == (c != 'g'))
4389 /* Make a new association if needed. %u and %j
4391 if (t == 0 || c == 'u' || c == 'j')
4395 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4396 t->next = temp_names;
4399 t->length = suffix_length;
4402 t->suffix = saved_suffix;
4403 saved_suffix = NULL;
4406 t->suffix = save_string (suffix, suffix_length);
4407 t->unique = (c != 'g');
4408 temp_filename = make_temp_file (t->suffix);
4409 temp_filename_length = strlen (temp_filename);
4410 t->filename = temp_filename;
4411 t->filename_length = temp_filename_length;
4415 free (saved_suffix);
4417 obstack_grow (&obstack, t->filename, t->filename_length);
4418 delete_this_arg = 1;
4424 obstack_grow (&obstack, input_filename, input_filename_length);
4430 struct prefix_list *pl = include_prefixes.plist;
4432 if (gcc_exec_prefix)
4434 do_spec_1 ("-iprefix", 1, NULL);
4435 /* Make this a separate argument. */
4436 do_spec_1 (" ", 0, NULL);
4437 do_spec_1 (gcc_exec_prefix, 1, NULL);
4438 do_spec_1 (" ", 0, NULL);
4441 for (; pl; pl = pl->next)
4443 do_spec_1 ("-isystem", 1, NULL);
4444 /* Make this a separate argument. */
4445 do_spec_1 (" ", 0, NULL);
4446 do_spec_1 (pl->prefix, 1, NULL);
4447 do_spec_1 (" ", 0, NULL);
4454 int max = n_infiles;
4455 max += lang_specific_extra_outfiles;
4457 for (i = 0; i < max; i++)
4459 store_arg (outfiles[i], 0, 0);
4464 obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
4469 this_is_library_file = 1;
4473 this_is_output_file = 1;
4478 int cur_index = argbuf_index;
4479 /* Handle the {...} following the %W. */
4482 p = handle_braces (p + 1);
4485 /* If any args were output, mark the last one for deletion
4487 if (argbuf_index != cur_index)
4488 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4492 /* %x{OPTION} records OPTION for %X to output. */
4498 /* Skip past the option value and make a copy. */
4503 string = save_string (p1 + 1, p - p1 - 2);
4505 /* See if we already recorded this option. */
4506 for (i = 0; i < n_linker_options; i++)
4507 if (! strcmp (string, linker_options[i]))
4513 /* This option is new; add it. */
4514 add_linker_option (string, strlen (string));
4518 /* Dump out the options accumulated previously using %x. */
4520 for (i = 0; i < n_linker_options; i++)
4522 do_spec_1 (linker_options[i], 1, NULL);
4523 /* Make each accumulated option a separate argument. */
4524 do_spec_1 (" ", 0, NULL);
4528 /* Dump out the options accumulated previously using -Wa,. */
4530 for (i = 0; i < n_assembler_options; i++)
4532 do_spec_1 (assembler_options[i], 1, NULL);
4533 /* Make each accumulated option a separate argument. */
4534 do_spec_1 (" ", 0, NULL);
4538 /* Dump out the options accumulated previously using -Wp,. */
4540 for (i = 0; i < n_preprocessor_options; i++)
4542 do_spec_1 (preprocessor_options[i], 1, NULL);
4543 /* Make each accumulated option a separate argument. */
4544 do_spec_1 (" ", 0, NULL);
4548 /* Here are digits and numbers that just process
4549 a certain constant string as a spec. */
4552 value = do_spec_1 (cc1_spec, 0, NULL);
4558 value = do_spec_1 (cc1plus_spec, 0, NULL);
4564 value = do_spec_1 (asm_spec, 0, NULL);
4570 value = do_spec_1 (asm_final_spec, 0, NULL);
4576 value = do_spec_1 (signed_char_spec, 0, NULL);
4584 = (input_file_compiler->cpp_spec
4585 ? input_file_compiler->cpp_spec
4587 value = do_spec_1 (spec, 0, NULL);
4594 value = do_spec_1 (endfile_spec, 0, NULL);
4600 value = do_spec_1 (link_spec, 0, NULL);
4606 value = do_spec_1 (lib_spec, 0, NULL);
4612 value = do_spec_1 (libgcc_spec, 0, NULL);
4618 if (multilib_dir && strcmp (multilib_dir, ".") != 0)
4624 len = strlen (multilib_dir);
4625 obstack_blank (&obstack, len + 1);
4626 p = obstack_next_free (&obstack) - (len + 1);
4629 for (q = multilib_dir; *q ; ++q, ++p)
4630 *p = (IS_DIR_SEPARATOR (*q) ? '_' : *q);
4636 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4640 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4644 if (! strncmp (y, "-D", 2))
4645 /* Copy the whole option. */
4646 while (*y && *y != ' ' && *y != '\t')
4648 else if (*y == ' ' || *y == '\t')
4649 /* Copy whitespace to the result. */
4651 /* Don't copy other options. */
4658 value = do_spec_1 (buf, 0, NULL);
4666 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4670 /* Copy all of CPP_PREDEFINES into BUF,
4671 but force them all into the reserved name space if they
4672 aren't already there. The reserved name space is all
4673 identifiers beginning with two underscores or with one
4674 underscore and a capital letter. We do the forcing by
4675 adding up to two underscores to the beginning and end
4676 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4681 if (! strncmp (y, "-D", 2))
4690 && ! ISUPPER ((unsigned char) *(y + 1))))
4692 /* Stick __ at front of macro name. */
4696 /* Arrange to stick __ at the end as well. */
4700 /* Copy the macro name. */
4701 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4714 /* Copy the value given, if any. */
4715 while (*y && *y != ' ' && *y != '\t')
4718 else if (*y == ' ' || *y == '\t')
4719 /* Copy whitespace to the result. */
4721 /* Don't copy -A options */
4727 /* Copy all of CPP_PREDEFINES into BUF,
4728 but put __ after every -D. */
4732 if (! strncmp (y, "-D", 2))
4738 && ! ISUPPER ((unsigned char) *(y + 1))))
4740 /* Stick -D__ at front of macro name. */
4747 /* Copy the macro name. */
4748 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4751 /* Copy the value given, if any. */
4752 while (*y && *y != ' ' && *y != '\t')
4757 /* Do not copy this macro - we have just done it before */
4758 while (*y && *y != ' ' && *y != '\t')
4762 else if (*y == ' ' || *y == '\t')
4763 /* Copy whitespace to the result. */
4765 /* Don't copy -A options. */
4771 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4775 if (! strncmp (y, "-A", 2))
4776 /* Copy the whole option. */
4777 while (*y && *y != ' ' && *y != '\t')
4779 else if (*y == ' ' || *y == '\t')
4780 /* Copy whitespace to the result. */
4782 /* Don't copy other options. */
4789 value = do_spec_1 (buf, 0, NULL);
4796 value = do_spec_1 (startfile_spec, 0, NULL);
4801 /* Here we define characters other than letters and digits. */
4804 p = handle_braces (p);
4810 obstack_1grow (&obstack, '%');
4817 while (p[len] && p[len] != ' ' && p[len] != '%')
4819 suffix_subst = save_string (p - 1, len + 1);
4825 if (soft_matched_part)
4827 do_spec_1 (soft_matched_part, 1, NULL);
4828 do_spec_1 (" ", 0, NULL);
4831 /* Catch the case where a spec string contains something like
4832 '%{foo:%*}'. ie there is no * in the pattern on the left
4833 hand side of the :. */
4834 error ("Spec failure: '%%*' has not been initialised by pattern match");
4837 /* Process a string found as the value of a spec given by name.
4838 This feature allows individual machine descriptions
4839 to add and use their own specs.
4840 %[...] modifies -D options the way %P does;
4841 %(...) uses the spec unmodified. */
4843 error ("Warning: use of obsolete %%[ operator in specs");
4846 const char *name = p;
4847 struct spec_list *sl;
4850 /* The string after the S/P is the name of a spec that is to be
4852 while (*p && *p != ')' && *p != ']')
4855 /* See if it's in the list. */
4856 for (len = p - name, sl = specs; sl; sl = sl->next)
4857 if (sl->name_len == len && !strncmp (sl->name, name, len))
4859 name = *(sl->ptr_spec);
4861 notice ("Processing spec %c%s%c, which is '%s'\n",
4862 c, sl->name, (c == '(') ? ')' : ']', name);
4871 value = do_spec_1 (name, 0, NULL);
4877 char *x = (char *) alloca (strlen (name) * 2 + 1);
4879 const char *y = name;
4882 /* Copy all of NAME into BUF, but put __ after
4883 every -D and at the end of each arg. */
4886 if (! strncmp (y, "-D", 2))
4897 && (*y == ' ' || *y == '\t' || *y == '='
4898 || *y == '}' || *y == 0))
4911 value = do_spec_1 (buf, 0, NULL);
4917 /* Discard the closing paren or bracket. */
4925 int c1 = *p++; /* Select first or second version number. */
4926 const char *v = compiler_version;
4928 static const char zeroc = '0';
4930 /* The format of the version string is
4931 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4933 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4934 while (! ISDIGIT (*v))
4936 if (v > compiler_version && v[-1] != '-')
4939 /* If desired, advance to second version number. */
4942 /* Set V after the first period. */
4943 while (ISDIGIT (*v))
4950 /* If desired, advance to third version number.
4951 But don't complain if it's not present */
4954 /* Set V after the second period. */
4955 while (ISDIGIT (*v))
4957 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4963 /* Set Q at the next period or at the end. */
4965 while (ISDIGIT (*q))
4967 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4971 /* Put that part into the command. */
4972 obstack_grow (&obstack, v, q - v);
4974 /* Default to "0" */
4975 obstack_grow (&obstack, &zeroc, 1);
4981 if (input_from_pipe)
4982 do_spec_1 ("-", 0, NULL);
4986 error ("Spec failure: Unrecognised spec option '%c'", c);
4992 /* Backslash: treat next character as ordinary. */
4997 /* Ordinary character: put it into the current argument. */
4998 obstack_1grow (&obstack, c);
5002 /* End of string. */
5006 /* Return 0 if we call do_spec_1 and that returns -1. */
5010 register const char *p;
5012 const char *filter, *body = NULL, *endbody = NULL;
5014 int true_once = 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5017 int include_blanks = 1;
5018 int elide_switch = 0;
5023 /* A '^' after the open-brace means to not give blanks before args. */
5030 /* A `|' after the open-brace means,
5031 if the test fails, output a single minus sign rather than nothing.
5032 This is used in %{|!pipe:...}. */
5039 /* A `<' after the open-brace means that the switch should be
5040 removed from the command-line. */
5046 negate = suffix = 0;
5049 /* A `!' after the open-brace negates the condition:
5050 succeed if the specified switch is not present. */
5054 /* A `.' after the open-brace means test against the current suffix. */
5063 if (elide_switch && (negate || pipe_p || suffix))
5065 /* It doesn't make sense to mix elision with other flags. We
5066 could fatal() here, but the standard seems to be to abort. */
5072 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
5075 if (*p == '|' && (pipe_p || ordered))
5080 if (*p != '}' && *p != '&')
5082 register int count = 1;
5083 register const char *q = p;
5096 fatal ("Mismatched braces in specs");
5102 body = p, endbody = p + 1;
5107 int found = (input_suffix != 0
5108 && (long) strlen (input_suffix) == (long) (p - filter)
5109 && strncmp (input_suffix, filter, p - filter) == 0);
5115 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL) < 0)
5118 else if (p[-1] == '*' && (p[0] == '}' || p[0] == '&'))
5120 /* Substitute all matching switches as separate args. */
5123 for (i = 0; i < n_switches; i++)
5124 if (!strncmp (switches[i].part1, filter, p - 1 - filter)
5125 && check_live_switch (i, p - 1 - filter))
5129 switches[i].live_cond = SWITCH_IGNORE;
5130 switches[i].validated = 1;
5133 ordered = 1, switches[i].ordering = 1;
5138 /* Test for presence of the specified switch. */
5142 /* If name specified ends in *, as in {x*:...},
5143 check for %* and handle that case. */
5144 if (p[-1] == '*' && !negate)
5147 const char *r = body;
5149 /* First see whether we have %*. */
5153 if (*r == '%' && r[1] == '*')
5157 /* If we do, handle that case. */
5160 /* Substitute all matching switches as separate args.
5161 But do this by substituting for %*
5162 in the text that follows the colon. */
5164 unsigned hard_match_len = p - filter - 1;
5165 char *string = save_string (body, endbody - body - 1);
5167 for (i = 0; i < n_switches; i++)
5168 if (!strncmp (switches[i].part1, filter, hard_match_len)
5169 && check_live_switch (i, -1))
5171 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
5172 /* Pass any arguments this switch has. */
5173 give_switch (i, 1, 1);
5174 suffix_subst = NULL;
5177 /* We didn't match. Try again. */
5184 /* If name specified ends in *, as in {x*:...},
5185 check for presence of any switch name starting with x. */
5188 for (i = 0; i < n_switches; i++)
5190 unsigned hard_match_len = p - filter - 1;
5192 if (!strncmp (switches[i].part1, filter, hard_match_len)
5193 && check_live_switch (i, hard_match_len))
5200 /* Otherwise, check for presence of exact name specified. */
5203 for (i = 0; i < n_switches; i++)
5205 if (!strncmp (switches[i].part1, filter, p - filter)
5206 && switches[i].part1[p - filter] == 0
5207 && check_live_switch (i, -1))
5215 /* If it is as desired (present for %{s...}, absent for %{!s...})
5216 then substitute either the switch or the specified
5217 conditional text. */
5218 if (present != negate)
5222 switches[i].live_cond = SWITCH_IGNORE;
5223 switches[i].validated = 1;
5225 else if (ordered || *p == '&')
5226 ordered = 1, switches[i].ordering = 1;
5228 give_switch (i, 0, include_blanks);
5230 /* Even if many alternatives are matched, only output once. */
5235 /* Here if a %{|...} conditional fails: output a minus sign,
5236 which means "standard output" or "standard input". */
5237 do_spec_1 ("-", 0, NULL);
5242 /* We didn't match; try again. */
5249 goto next_ampersand;
5255 /* Doing this set of switches later preserves their command-line
5256 ordering. This is needed for e.g. -U, -D and -A. */
5257 for (i = 0; i < n_switches; i++)
5258 if (switches[i].ordering == 1)
5260 switches[i].ordering = 0;
5261 give_switch (i, 0, include_blanks);
5264 /* Process the spec just once, regardless of match count. */
5267 if (do_spec_1 (save_string (body, endbody - body - 1),
5275 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5276 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5277 spec, or -1 if either exact match or %* is used.
5279 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5280 whose value does not begin with "no-" is obsoleted by the same value
5281 with the "no-", similarly for a switch with the "no-" prefix. */
5284 check_live_switch (switchnum, prefix_length)
5288 const char *name = switches[switchnum].part1;
5291 /* In the common case of {<at-most-one-letter>*}, a negating
5292 switch would always match, so ignore that case. We will just
5293 send the conflicting switches to the compiler phase. */
5294 if (prefix_length >= 0 && prefix_length <= 1)
5297 /* If we already processed this switch and determined if it was
5298 live or not, return our past determination. */
5299 if (switches[switchnum].live_cond != 0)
5300 return switches[switchnum].live_cond > 0;
5302 /* Now search for duplicate in a manner that depends on the name. */
5306 for (i = switchnum + 1; i < n_switches; i++)
5307 if (switches[i].part1[0] == 'O')
5309 switches[switchnum].validated = 1;
5310 switches[switchnum].live_cond = SWITCH_FALSE;
5315 case 'W': case 'f': case 'm':
5316 if (! strncmp (name + 1, "no-", 3))
5318 /* We have Xno-YYY, search for XYYY. */
5319 for (i = switchnum + 1; i < n_switches; i++)
5320 if (switches[i].part1[0] == name[0]
5321 && ! strcmp (&switches[i].part1[1], &name[4]))
5323 switches[switchnum].validated = 1;
5324 switches[switchnum].live_cond = SWITCH_FALSE;
5330 /* We have XYYY, search for Xno-YYY. */
5331 for (i = switchnum + 1; i < n_switches; i++)
5332 if (switches[i].part1[0] == name[0]
5333 && switches[i].part1[1] == 'n'
5334 && switches[i].part1[2] == 'o'
5335 && switches[i].part1[3] == '-'
5336 && !strcmp (&switches[i].part1[4], &name[1]))
5338 switches[switchnum].validated = 1;
5339 switches[switchnum].live_cond = SWITCH_FALSE;
5346 /* Otherwise the switch is live. */
5347 switches[switchnum].live_cond = SWITCH_LIVE;
5351 /* Pass a switch to the current accumulating command
5352 in the same form that we received it.
5353 SWITCHNUM identifies the switch; it is an index into
5354 the vector of switches gcc received, which is `switches'.
5355 This cannot fail since it never finishes a command line.
5357 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5359 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5363 give_switch (switchnum, omit_first_word, include_blanks)
5365 int omit_first_word;
5368 if (switches[switchnum].live_cond == SWITCH_IGNORE)
5371 if (!omit_first_word)
5373 do_spec_1 ("-", 0, NULL);
5374 do_spec_1 (switches[switchnum].part1, 1, NULL);
5377 if (switches[switchnum].args != 0)
5380 for (p = switches[switchnum].args; *p; p++)
5382 const char *arg = *p;
5385 do_spec_1 (" ", 0, NULL);
5388 unsigned length = strlen (arg);
5391 while (length-- && !IS_DIR_SEPARATOR (arg[length]))
5392 if (arg[length] == '.')
5394 ((char *)arg)[length] = 0;
5398 do_spec_1 (arg, 1, NULL);
5400 ((char *)arg)[length] = '.';
5401 do_spec_1 (suffix_subst, 1, NULL);
5404 do_spec_1 (arg, 1, NULL);
5408 do_spec_1 (" ", 0, NULL);
5409 switches[switchnum].validated = 1;
5412 /* Search for a file named NAME trying various prefixes including the
5413 user's -B prefix and some standard ones.
5414 Return the absolute file name found. If nothing is found, return NAME. */
5422 /* Try multilib_dir if it is defined. */
5423 if (multilib_dir != NULL)
5427 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
5428 strcpy (try, multilib_dir);
5429 strcat (try, dir_separator_str);
5432 newname = find_a_file (&startfile_prefixes, try, R_OK);
5434 /* If we don't find it in the multi library dir, then fall
5435 through and look for it in the normal places. */
5436 if (newname != NULL)
5440 newname = find_a_file (&startfile_prefixes, name, R_OK);
5441 return newname ? newname : name;
5444 /* Determine whether a directory exists. If LINKER, return 0 for
5445 certain fixed names not needed by the linker. If not LINKER, it is
5446 only important to return 0 if the host machine has a small ARG_MAX
5450 is_directory (path1, path2, linker)
5455 int len1 = strlen (path1);
5456 int len2 = strlen (path2);
5457 char *path = (char *) alloca (3 + len1 + len2);
5461 #ifndef SMALL_ARG_MAX
5466 /* Construct the path from the two parts. Ensure the string ends with "/.".
5467 The resulting path will be a directory even if the given path is a
5469 memcpy (path, path1, len1);
5470 memcpy (path + len1, path2, len2);
5471 cp = path + len1 + len2;
5472 if (!IS_DIR_SEPARATOR (cp[-1]))
5473 *cp++ = DIR_SEPARATOR;
5477 /* Exclude directories that the linker is known to search. */
5480 && strcmp (path, concat (dir_separator_str, "lib",
5481 dir_separator_str, ".", NULL)) == 0)
5483 && strcmp (path, concat (dir_separator_str, "usr",
5484 dir_separator_str, "lib",
5485 dir_separator_str, ".", NULL)) == 0)))
5488 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5491 /* Set up the various global variables to indicate that we're processing
5492 the input file named FILENAME. */
5495 set_input (filename)
5496 const char *filename;
5498 register const char *p;
5500 input_filename = filename;
5501 input_filename_length = strlen (input_filename);
5503 input_basename = input_filename;
5504 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5505 /* Skip drive name so 'x:foo' is handled properly. */
5506 if (input_basename[1] == ':')
5507 input_basename += 2;
5509 for (p = input_basename; *p; p++)
5510 if (IS_DIR_SEPARATOR (*p))
5511 input_basename = p + 1;
5513 /* Find a suffix starting with the last period,
5514 and set basename_length to exclude that suffix. */
5515 basename_length = strlen (input_basename);
5516 suffixed_basename_length = basename_length;
5517 p = input_basename + basename_length;
5518 while (p != input_basename && *p != '.')
5520 if (*p == '.' && p != input_basename)
5522 basename_length = p - input_basename;
5523 input_suffix = p + 1;
5529 /* On fatal signals, delete all the temporary files. */
5532 fatal_error (signum)
5535 signal (signum, SIG_DFL);
5536 delete_failure_queue ();
5537 delete_temp_files ();
5538 /* Get the same signal again, this time not handled,
5539 so its normal effect occurs. */
5540 kill (getpid (), signum);
5543 extern int main PARAMS ((int, const char *const *));
5548 const char *const *argv;
5552 int linker_was_run = 0;
5553 char *explicit_link_files;
5556 struct user_specs *uptr;
5558 p = argv[0] + strlen (argv[0]);
5559 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5563 xmalloc_set_program_name (programname);
5565 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5566 /* Perform host dependant initialization when needed. */
5567 GCC_DRIVER_HOST_INITIALIZATION;
5570 /* LC_CTYPE determines the character set used by the terminal so it has be set
5571 to output messages correctly. */
5573 #ifdef HAVE_LC_MESSAGES
5574 setlocale (LC_CTYPE, "");
5575 setlocale (LC_MESSAGES, "");
5577 setlocale (LC_ALL, "");
5580 (void) bindtextdomain (PACKAGE, localedir);
5581 (void) textdomain (PACKAGE);
5583 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5584 signal (SIGINT, fatal_error);
5586 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5587 signal (SIGHUP, fatal_error);
5589 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5590 signal (SIGTERM, fatal_error);
5592 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5593 signal (SIGPIPE, fatal_error);
5596 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5597 receive the signal. A different setting is inheritable */
5598 signal (SIGCHLD, SIG_DFL);
5602 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5604 obstack_init (&obstack);
5606 /* Build multilib_select, et. al from the separate lines that make up each
5607 multilib selection. */
5609 const char *const *q = multilib_raw;
5612 obstack_init (&multilib_obstack);
5613 while ((p = *q++) != (char *) 0)
5614 obstack_grow (&multilib_obstack, p, strlen (p));
5616 obstack_1grow (&multilib_obstack, 0);
5617 multilib_select = obstack_finish (&multilib_obstack);
5619 q = multilib_matches_raw;
5620 while ((p = *q++) != (char *) 0)
5621 obstack_grow (&multilib_obstack, p, strlen (p));
5623 obstack_1grow (&multilib_obstack, 0);
5624 multilib_matches = obstack_finish (&multilib_obstack);
5626 q = multilib_exclusions_raw;
5627 while ((p = *q++) != (char *) 0)
5628 obstack_grow (&multilib_obstack, p, strlen (p));
5630 obstack_1grow (&multilib_obstack, 0);
5631 multilib_exclusions = obstack_finish (&multilib_obstack);
5634 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5637 obstack_1grow (&multilib_obstack, ' ');
5638 obstack_grow (&multilib_obstack,
5639 multilib_defaults_raw[i],
5640 strlen (multilib_defaults_raw[i]));
5644 obstack_1grow (&multilib_obstack, 0);
5645 multilib_defaults = obstack_finish (&multilib_obstack);
5648 /* Set up to remember the pathname of gcc and any options
5649 needed for collect. We use argv[0] instead of programname because
5650 we need the complete pathname. */
5651 obstack_init (&collect_obstack);
5652 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5653 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5654 putenv (obstack_finish (&collect_obstack));
5656 #ifdef INIT_ENVIRONMENT
5657 /* Set up any other necessary machine specific environment variables. */
5658 putenv (INIT_ENVIRONMENT);
5661 /* Make a table of what switches there are (switches, n_switches).
5662 Make a table of specified input files (infiles, n_infiles).
5663 Decode switches that are handled locally. */
5665 process_command (argc, argv);
5670 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5672 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5673 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5676 for (i = 0; (int) i < n_switches; i++)
5678 const char *const *args;
5681 obstack_grow (&collect_obstack, " ", 1);
5684 obstack_grow (&collect_obstack, "'-", 2);
5685 q = switches[i].part1;
5686 while ((p = strchr (q, '\'')))
5688 obstack_grow (&collect_obstack, q, p - q);
5689 obstack_grow (&collect_obstack, "'\\''", 4);
5692 obstack_grow (&collect_obstack, q, strlen (q));
5693 obstack_grow (&collect_obstack, "'", 1);
5695 for (args = switches[i].args; args && *args; args++)
5697 obstack_grow (&collect_obstack, " '", 2);
5699 while ((p = strchr (q, '\'')))
5701 obstack_grow (&collect_obstack, q, p - q);
5702 obstack_grow (&collect_obstack, "'\\''", 4);
5705 obstack_grow (&collect_obstack, q, strlen (q));
5706 obstack_grow (&collect_obstack, "'", 1);
5709 obstack_grow (&collect_obstack, "\0", 1);
5710 putenv (obstack_finish (&collect_obstack));
5713 /* Initialize the vector of specs to just the default.
5714 This means one element containing 0s, as a terminator. */
5716 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5717 memcpy ((char *) compilers, (char *) default_compilers,
5718 sizeof default_compilers);
5719 n_compilers = n_default_compilers;
5721 /* Read specs from a file if there is one. */
5723 machine_suffix = concat (spec_machine, dir_separator_str,
5724 spec_version, dir_separator_str, NULL);
5725 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
5727 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5728 /* Read the specs file unless it is a default one. */
5729 if (specs_file != 0 && strcmp (specs_file, "specs"))
5730 read_specs (specs_file, TRUE);
5734 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5735 for any override of as, ld and libraries. */
5736 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5737 + strlen (just_machine_suffix)
5738 + sizeof ("specs"));
5740 strcpy (specs_file, standard_exec_prefix);
5741 strcat (specs_file, just_machine_suffix);
5742 strcat (specs_file, "specs");
5743 if (access (specs_file, R_OK) == 0)
5744 read_specs (specs_file, TRUE);
5746 /* If not cross-compiling, look for startfiles in the standard places. */
5747 if (*cross_compile == '0')
5749 if (*md_exec_prefix)
5751 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5752 PREFIX_PRIORITY_LAST, 0, NULL);
5753 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5754 PREFIX_PRIORITY_LAST, 0, NULL);
5757 if (*md_startfile_prefix)
5758 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5759 PREFIX_PRIORITY_LAST, 0, NULL);
5761 if (*md_startfile_prefix_1)
5762 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5763 PREFIX_PRIORITY_LAST, 0, NULL);
5765 /* If standard_startfile_prefix is relative, base it on
5766 standard_exec_prefix. This lets us move the installed tree
5767 as a unit. If GCC_EXEC_PREFIX is defined, base
5768 standard_startfile_prefix on that as well. */
5769 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix))
5770 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5771 PREFIX_PRIORITY_LAST, 0, NULL);
5774 if (gcc_exec_prefix)
5775 add_prefix (&startfile_prefixes,
5776 concat (gcc_exec_prefix, machine_suffix,
5777 standard_startfile_prefix, NULL),
5778 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5779 add_prefix (&startfile_prefixes,
5780 concat (standard_exec_prefix,
5782 standard_startfile_prefix, NULL),
5783 NULL, PREFIX_PRIORITY_LAST, 0, NULL);
5786 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5787 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5788 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5789 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5790 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5791 add_prefix (&startfile_prefixes, "./", NULL,
5792 PREFIX_PRIORITY_LAST, 1, NULL);
5797 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix)
5799 add_prefix (&startfile_prefixes,
5800 concat (gcc_exec_prefix, machine_suffix,
5801 standard_startfile_prefix, NULL),
5802 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
5805 /* Process any user specified specs in the order given on the command
5807 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5809 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5810 read_specs (filename ? filename : uptr->filename, FALSE);
5813 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5814 if (gcc_exec_prefix)
5816 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5817 + strlen (spec_version)
5818 + strlen (spec_machine) + 3);
5819 strcpy (temp, gcc_exec_prefix);
5820 strcat (temp, spec_machine);
5821 strcat (temp, dir_separator_str);
5822 strcat (temp, spec_version);
5823 strcat (temp, dir_separator_str);
5824 gcc_exec_prefix = temp;
5827 /* Now we have the specs.
5828 Set the `valid' bits for switches that match anything in any spec. */
5830 validate_all_switches ();
5832 /* Now that we have the switches and the specs, set
5833 the subdirectory based on the options. */
5834 set_multilib_dir ();
5836 /* Warn about any switches that no pass was interested in. */
5838 for (i = 0; (int) i < n_switches; i++)
5839 if (! switches[i].validated)
5840 error ("unrecognized option `-%s'", switches[i].part1);
5842 /* Obey some of the options. */
5844 if (print_search_dirs)
5846 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5847 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5848 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5852 if (print_file_name)
5854 printf ("%s\n", find_file (print_file_name));
5858 if (print_prog_name)
5860 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5861 printf ("%s\n", (newname ? newname : print_prog_name));
5865 if (print_multi_lib)
5867 print_multilib_info ();
5871 if (print_multi_directory)
5873 if (multilib_dir == NULL)
5876 printf ("%s\n", multilib_dir);
5880 if (target_help_flag)
5882 /* Print if any target specific options.*/
5884 /* We do not exit here. Instead we have created a fake input file
5885 called 'target-dummy' which needs to be compiled, and we pass this
5886 on to the various sub-processes, along with the --target-help
5890 if (print_help_list)
5896 printf (_("\nFor bug reporting instructions, please see:\n"));
5897 printf ("%s.\n", GCCBUGURL);
5902 /* We do not exit here. Instead we have created a fake input file
5903 called 'help-dummy' which needs to be compiled, and we pass this
5904 on the the various sub-processes, along with the --help switch. */
5912 notice ("Configured with: %s\n", configuration_arguments);
5914 #ifdef THREAD_MODEL_SPEC
5915 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5916 but there's no point in doing all this processing just to get
5917 thread_model back. */
5918 obstack_init (&obstack);
5919 do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
5920 obstack_1grow (&obstack, '\0');
5921 thrmod = obstack_finish (&obstack);
5923 thrmod = thread_model;
5926 notice ("Thread model: %s\n", thrmod);
5928 /* compiler_version is truncated at the first space when initialized
5929 from version string, so truncate version_string at the first space
5930 before comparing. */
5931 for (n = 0; version_string[n]; n++)
5932 if (version_string[n] == ' ')
5935 if (! strncmp (version_string, compiler_version, n)
5936 && compiler_version[n] == 0)
5937 notice ("gcc version %s\n", version_string);
5939 notice ("gcc driver version %s executing gcc version %s\n",
5940 version_string, compiler_version);
5946 if (n_infiles == added_libraries)
5947 fatal ("No input files");
5949 /* Make a place to record the compiler output file names
5950 that correspond to the input files. */
5953 i += lang_specific_extra_outfiles;
5954 outfiles = (const char **) xcalloc (i, sizeof (char *));
5956 /* Record which files were specified explicitly as link input. */
5958 explicit_link_files = xcalloc (1, n_infiles);
5960 for (i = 0; (int) i < n_infiles; i++)
5962 int this_file_error = 0;
5964 /* Tell do_spec what to substitute for %i. */
5966 input_file_number = i;
5967 set_input (infiles[i].name);
5969 /* Use the same thing in %o, unless cp->spec says otherwise. */
5971 outfiles[i] = input_filename;
5973 /* Figure out which compiler from the file's suffix. */
5976 = lookup_compiler (infiles[i].name, input_filename_length,
5977 infiles[i].language);
5979 if (input_file_compiler)
5981 /* Ok, we found an applicable compiler. Run its spec. */
5983 if (input_file_compiler->spec[0] == '#')
5984 error ("%s: %s compiler not installed on this system",
5985 input_filename, &input_file_compiler->spec[1]);
5986 value = do_spec (input_file_compiler->spec);
5988 this_file_error = 1;
5991 /* If this file's name does not contain a recognized suffix,
5992 record it as explicit linker input. */
5995 explicit_link_files[i] = 1;
5997 /* Clear the delete-on-failure queue, deleting the files in it
5998 if this compilation failed. */
6000 if (this_file_error)
6002 delete_failure_queue ();
6005 /* If this compilation succeeded, don't delete those files later. */
6006 clear_failure_queue ();
6009 /* Reset the output file name to the first input file name, for use
6010 with %b in LINK_SPEC on a target that prefers not to emit a.out
6013 set_input (infiles[0].name);
6015 if (error_count == 0)
6017 /* Make sure INPUT_FILE_NUMBER points to first available open
6019 input_file_number = n_infiles;
6020 if (lang_specific_pre_link ())
6024 /* Run ld to link all the compiler output files. */
6026 if (error_count == 0)
6028 int tmp = execution_count;
6030 /* We'll use ld if we can't find collect2. */
6031 if (! strcmp (linker_name_spec, "collect2"))
6033 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
6035 linker_name_spec = "ld";
6037 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6039 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
6040 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
6042 value = do_spec (link_command_spec);
6045 linker_was_run = (tmp != execution_count);
6048 /* If options said don't run linker,
6049 complain about input files to be given to the linker. */
6051 if (! linker_was_run && error_count == 0)
6052 for (i = 0; (int) i < n_infiles; i++)
6053 if (explicit_link_files[i])
6054 error ("%s: linker input file unused because linking not done",
6057 /* Delete some or all of the temporary files we made. */
6060 delete_failure_queue ();
6061 delete_temp_files ();
6063 if (print_help_list)
6065 printf (("\nFor bug reporting instructions, please see:\n"));
6066 printf ("%s\n", GCCBUGURL);
6069 return (signal_count != 0 ? 2
6070 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
6074 /* Find the proper compilation spec for the file name NAME,
6075 whose length is LENGTH. LANGUAGE is the specified language,
6076 or 0 if this file is to be passed to the linker. */
6078 static struct compiler *
6079 lookup_compiler (name, length, language)
6082 const char *language;
6084 struct compiler *cp;
6086 /* If this was specified by the user to be a linker input, indicate that. */
6087 if (language != 0 && language[0] == '*')
6090 /* Otherwise, look for the language, if one is spec'd. */
6093 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6094 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
6097 error ("language %s not recognized", language);
6101 /* Look for a suffix. */
6102 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6104 if (/* The suffix `-' matches only the file name `-'. */
6105 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6106 || (strlen (cp->suffix) < length
6107 /* See if the suffix matches the end of NAME. */
6108 && !strcmp (cp->suffix,
6109 name + length - strlen (cp->suffix))
6114 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6115 /* look again, but case-insensitively this time. */
6117 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
6119 if (/* The suffix `-' matches only the file name `-'. */
6120 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
6121 || (strlen (cp->suffix) < length
6122 /* See if the suffix matches the end of NAME. */
6123 && ((!strcmp (cp->suffix,
6124 name + length - strlen (cp->suffix))
6125 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6126 && !strcasecmp (cp->suffix,
6127 name + length - strlen (cp->suffix)))
6133 if (cp >= compilers)
6135 if (cp->spec[0] != '@')
6136 /* A non-alias entry: return it. */
6139 /* An alias entry maps a suffix to a language.
6140 Search for the language; pass 0 for NAME and LENGTH
6141 to avoid infinite recursion if language not found. */
6142 return lookup_compiler (NULL, 0, cp->spec + 1);
6148 save_string (s, len)
6152 register char *result = xmalloc (len + 1);
6154 memcpy (result, s, len);
6160 pfatal_with_name (name)
6163 perror_with_name (name);
6164 delete_temp_files ();
6169 perror_with_name (name)
6172 error ("%s: %s", name, xstrerror (errno));
6176 pfatal_pexecute (errmsg_fmt, errmsg_arg)
6177 const char *errmsg_fmt;
6178 const char *errmsg_arg;
6182 int save_errno = errno;
6184 /* Space for trailing '\0' is in %s. */
6185 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
6186 sprintf (msg, errmsg_fmt, errmsg_arg);
6192 pfatal_with_name (errmsg_fmt);
6195 /* Output an error message and exit */
6200 fatal ("Internal gcc abort.");
6203 /* Output an error message and exit */
6206 fatal VPARAMS ((const char *msgid, ...))
6208 VA_OPEN (ap, msgid);
6209 VA_FIXEDARG (ap, const char *, msgid);
6211 fprintf (stderr, "%s: ", programname);
6212 vfprintf (stderr, _(msgid), ap);
6214 fprintf (stderr, "\n");
6215 delete_temp_files ();
6220 error VPARAMS ((const char *msgid, ...))
6222 VA_OPEN (ap, msgid);
6223 VA_FIXEDARG (ap, const char *, msgid);
6225 fprintf (stderr, "%s: ", programname);
6226 vfprintf (stderr, _(msgid), ap);
6229 fprintf (stderr, "\n");
6233 notice VPARAMS ((const char *msgid, ...))
6235 VA_OPEN (ap, msgid);
6236 VA_FIXEDARG (ap, const char *, msgid);
6238 vfprintf (stderr, _(msgid), ap);
6243 validate_all_switches ()
6245 struct compiler *comp;
6246 register const char *p;
6248 struct spec_list *spec;
6250 for (comp = compilers; comp->spec; comp++)
6254 if (c == '%' && *p == '{')
6255 /* We have a switch spec. */
6256 validate_switches (p + 1);
6259 /* Look through the linked list of specs read from the specs file. */
6260 for (spec = specs; spec; spec = spec->next)
6262 p = *(spec->ptr_spec);
6264 if (c == '%' && *p == '{')
6265 /* We have a switch spec. */
6266 validate_switches (p + 1);
6269 p = link_command_spec;
6271 if (c == '%' && *p == '{')
6272 /* We have a switch spec. */
6273 validate_switches (p + 1);
6276 /* Look at the switch-name that comes after START
6277 and mark as valid all supplied switches that match it. */
6280 validate_switches (start)
6283 register const char *p = start;
6300 while (*p != ':' && *p != '}' && *p != '|' && *p != '&')
6305 else if (p[-1] == '*')
6307 /* Mark all matching switches as valid. */
6308 for (i = 0; i < n_switches; i++)
6309 if (!strncmp (switches[i].part1, filter, p - filter - 1))
6310 switches[i].validated = 1;
6314 /* Mark an exact matching switch as valid. */
6315 for (i = 0; i < n_switches; i++)
6317 if (!strncmp (switches[i].part1, filter, p - filter)
6318 && switches[i].part1[p - filter] == 0)
6319 switches[i].validated = 1;
6323 if (*p++ == '|' || p[-1] == '&')
6327 /* Check whether a particular argument was used. The first time we
6328 canonicalize the switches to keep only the ones we care about. */
6338 const char *replace;
6343 static struct mswitchstr *mswitches;
6344 static int n_mswitches;
6349 struct mswitchstr *matches;
6353 /* Break multilib_matches into the component strings of string
6354 and replacement string. */
6355 for (q = multilib_matches; *q != '\0'; q++)
6360 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
6362 q = multilib_matches;
6372 matches[i].len = q - matches[i].str;
6374 matches[i].replace = ++q;
6375 while (*q != ';' && *q != '\0')
6381 matches[i].rep_len = q - matches[i].replace;
6387 /* Now build a list of the replacement string for switches that we care
6388 about. Make sure we allocate at least one entry. This prevents
6389 xmalloc from calling fatal, and prevents us from re-executing this
6392 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
6393 * (n_switches ? n_switches : 1));
6394 for (i = 0; i < n_switches; i++)
6396 int xlen = strlen (switches[i].part1);
6397 for (j = 0; j < cnt; j++)
6398 if (xlen == matches[j].len
6399 && ! strncmp (switches[i].part1, matches[j].str, xlen))
6401 mswitches[n_mswitches].str = matches[j].replace;
6402 mswitches[n_mswitches].len = matches[j].rep_len;
6403 mswitches[n_mswitches].replace = (char *) 0;
6404 mswitches[n_mswitches].rep_len = 0;
6411 for (i = 0; i < n_mswitches; i++)
6412 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
6419 default_arg (p, len)
6423 const char *start, *end;
6425 for (start = multilib_defaults; *start != '\0'; start = end + 1)
6427 while (*start == ' ' || *start == '\t')
6433 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
6436 if ((end - start) == len && strncmp (p, start, len) == 0)
6446 /* Work out the subdirectory to use based on the options. The format of
6447 multilib_select is a list of elements. Each element is a subdirectory
6448 name followed by a list of options followed by a semicolon. The format
6449 of multilib_exclusions is the same, but without the preceding
6450 directory. First gcc will check the exclusions, if none of the options
6451 beginning with an exclamation point are present, and all of the other
6452 options are present, then we will ignore this completely. Passing
6453 that, gcc will consider each multilib_select in turn using the same
6454 rules for matching the options. If a match is found, that subdirectory
6461 unsigned int this_path_len;
6462 const char *this_path, *this_arg;
6466 p = multilib_exclusions;
6469 /* Ignore newlines. */
6476 /* Check the arguments. */
6490 while (*p != ' ' && *p != ';')
6497 if (*this_arg != '!')
6505 ok = used_arg (this_arg, p - this_arg);
6519 p = multilib_select;
6522 /* Ignore newlines. */
6529 /* Get the initial path. */
6537 this_path_len = p - this_path;
6539 /* Check the arguments. */
6554 while (*p != ' ' && *p != ';')
6561 if (*this_arg != '!')
6569 /* If this is a default argument, we can just ignore it.
6570 This is true even if this_arg begins with '!'. Beginning
6571 with '!' does not mean that this argument is necessarily
6572 inappropriate for this library: it merely means that
6573 there is a more specific library which uses this
6574 argument. If this argument is a default, we need not
6575 consider that more specific library. */
6576 if (! default_arg (this_arg, p - this_arg))
6578 ok = used_arg (this_arg, p - this_arg);
6589 if (this_path_len != 1
6590 || this_path[0] != '.')
6592 char *new_multilib_dir = xmalloc (this_path_len + 1);
6593 strncpy (new_multilib_dir, this_path, this_path_len);
6594 new_multilib_dir[this_path_len] = '\0';
6595 multilib_dir = new_multilib_dir;
6604 /* Print out the multiple library subdirectory selection
6605 information. This prints out a series of lines. Each line looks
6606 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6607 required. Only the desired options are printed out, the negative
6608 matches. The options are print without a leading dash. There are
6609 no spaces to make it easy to use the information in the shell.
6610 Each subdirectory is printed only once. This assumes the ordering
6611 generated by the genmultilib script. Also, we leave out ones that match
6615 print_multilib_info ()
6617 const char *p = multilib_select;
6618 const char *last_path = 0, *this_path;
6620 unsigned int last_path_len = 0;
6625 /* Ignore newlines. */
6632 /* Get the initial path. */
6641 /* Check for matches with the multilib_exclusions. We don't bother
6642 with the '!' in either list. If any of the exclusion rules match
6643 all of its options with the select rule, we skip it. */
6645 const char *e = multilib_exclusions;
6646 const char *this_arg;
6651 /* Ignore newlines. */
6658 /* Check the arguments. */
6675 while (*e != ' ' && *e != ';')
6686 int len = e - this_arg;
6693 while (*q != ' ' && *q != ';')
6700 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6701 default_arg (this_arg, e - this_arg))
6731 /* If this is a duplicate, skip it. */
6732 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6733 && ! strncmp (last_path, this_path, last_path_len));
6735 last_path = this_path;
6736 last_path_len = p - this_path;
6739 /* If this directory requires any default arguments, we can skip
6740 it. We will already have printed a directory identical to
6741 this one which does not require that default argument. */
6759 while (*q != ' ' && *q != ';')
6767 && default_arg (arg, q - arg))
6782 for (p1 = last_path; p1 < p; p1++)
6801 use_arg = *p != '!';
6806 while (*p != ' ' && *p != ';')
6821 /* If there are extra options, print them now. */
6822 if (multilib_extra && *multilib_extra)
6824 int print_at = TRUE;
6827 for (q = multilib_extra; *q != '\0'; q++)