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 const 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. */
229 const struct modify_target
231 const char *const sw
;
232 const enum add_del
{ADD
, DELETE
} add_del
;
233 const char *const str
;
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},
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. */
860 const char *const name
;
861 /* The equivalent short option. */
862 const char *const 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 *const 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 static const 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
957 static const struct {
958 const char *const option_found
;
959 const char *const 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
;
1022 newv
[newindex
++] = np
;
1023 while (*np
!= ' ' && *np
)
1034 if (target_option_translations
[tott_idx
].option_found
)
1038 /* Translate -- options. */
1039 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
1042 /* Find a mapping that applies to this option. */
1043 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
1045 size_t optlen
= strlen (option_map
[j
].name
);
1046 size_t arglen
= strlen (argv
[i
]);
1047 size_t complen
= arglen
> optlen
? optlen
: arglen
;
1048 const char *arginfo
= option_map
[j
].arg_info
;
1053 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
1055 const char *arg
= 0;
1057 if (arglen
< optlen
)
1060 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
1061 if (strlen (option_map
[k
].name
) >= arglen
1062 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1064 error ("Ambiguous abbreviation %s", argv
[i
]);
1068 if (k
!= ARRAY_SIZE (option_map
))
1072 if (arglen
> optlen
)
1074 /* If the option has an argument, accept that. */
1075 if (argv
[i
][optlen
] == '=')
1076 arg
= argv
[i
] + optlen
+ 1;
1078 /* If this mapping requires extra text at end of name,
1079 accept that as "argument". */
1080 else if (strchr (arginfo
, '*') != 0)
1081 arg
= argv
[i
] + optlen
;
1083 /* Otherwise, extra text at end means mismatch.
1084 Try other mappings. */
1089 else if (strchr (arginfo
, '*') != 0)
1091 error ("Incomplete `%s' option", option_map
[j
].name
);
1095 /* Handle arguments. */
1096 if (strchr (arginfo
, 'a') != 0)
1102 error ("Missing argument to `%s' option",
1103 option_map
[j
].name
);
1110 else if (strchr (arginfo
, '*') != 0)
1112 else if (strchr (arginfo
, 'o') == 0)
1115 error ("Extraneous argument to `%s' option",
1116 option_map
[j
].name
);
1120 /* Store the translation as one argv elt or as two. */
1121 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1122 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1126 newv
[newindex
++] = option_map
[j
].equivalent
;
1127 newv
[newindex
++] = arg
;
1130 newv
[newindex
++] = option_map
[j
].equivalent
;
1138 /* Handle old-fashioned options--just copy them through,
1139 with their arguments. */
1140 else if (argv
[i
][0] == '-')
1142 const char *p
= argv
[i
] + 1;
1146 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1147 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1148 else if (WORD_SWITCH_TAKES_ARG (p
))
1149 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1150 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1153 else if (! strcmp (p
, "Xlinker"))
1156 /* Watch out for an option at the end of the command line that
1157 is missing arguments, and avoid skipping past the end of the
1159 if (nskip
+ i
> argc
)
1164 newv
[newindex
++] = argv
[i
++];
1169 /* Ordinary operands, or +e options. */
1170 newv
[newindex
++] = argv
[i
++];
1185 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1186 be considered whitespace. */
1187 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1189 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1203 /* Structures to keep track of prefixes to try when looking for files. */
1207 const char *prefix
; /* String to prepend to the path. */
1208 struct prefix_list
*next
; /* Next in linked list. */
1209 int require_machine_suffix
; /* Don't use without machine_suffix. */
1210 /* 2 means try both machine_suffix and just_machine_suffix. */
1211 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1212 int priority
; /* Sort key - priority within list */
1217 struct prefix_list
*plist
; /* List of prefixes to try */
1218 int max_len
; /* Max length of a prefix in PLIST */
1219 const char *name
; /* Name of this list (used in config stuff) */
1222 /* List of prefixes to try when looking for executables. */
1224 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1226 /* List of prefixes to try when looking for startup (crt0) files. */
1228 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1230 /* List of prefixes to try when looking for include files. */
1232 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1234 /* Suffix to attach to directories searched for commands.
1235 This looks like `MACHINE/VERSION/'. */
1237 static const char *machine_suffix
= 0;
1239 /* Suffix to attach to directories searched for commands.
1240 This is just `MACHINE/'. */
1242 static const char *just_machine_suffix
= 0;
1244 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1246 static const char *gcc_exec_prefix
;
1248 /* Default prefixes to attach to command names. */
1250 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1251 #undef MD_EXEC_PREFIX
1252 #undef MD_STARTFILE_PREFIX
1253 #undef MD_STARTFILE_PREFIX_1
1256 /* If no prefixes defined, use the null string, which will disable them. */
1257 #ifndef MD_EXEC_PREFIX
1258 #define MD_EXEC_PREFIX ""
1260 #ifndef MD_STARTFILE_PREFIX
1261 #define MD_STARTFILE_PREFIX ""
1263 #ifndef MD_STARTFILE_PREFIX_1
1264 #define MD_STARTFILE_PREFIX_1 ""
1267 /* Supply defaults for the standard prefixes. */
1269 #ifndef STANDARD_EXEC_PREFIX
1270 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1272 #ifndef STANDARD_STARTFILE_PREFIX
1273 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1275 #ifndef TOOLDIR_BASE_PREFIX
1276 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1278 #ifndef STANDARD_BINDIR_PREFIX
1279 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1282 static const char *const standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1283 static const char *const standard_exec_prefix_1
= "/usr/lib/gcc/";
1284 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1286 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1287 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1288 static const char *const standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1289 static const char *const standard_startfile_prefix_1
= "/lib/";
1290 static const char *const standard_startfile_prefix_2
= "/usr/lib/";
1292 static const char *const tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1293 static const char *tooldir_prefix
;
1295 static const char *const standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1297 /* Subdirectory to use for locating libraries. Set by
1298 set_multilib_dir based on the compilation options. */
1300 static const char *multilib_dir
;
1302 /* Structure to keep track of the specs that have been defined so far.
1303 These are accessed using %(specname) or %[specname] in a compiler
1308 /* The following 2 fields must be first */
1309 /* to allow EXTRA_SPECS to be initialized */
1310 const char *name
; /* name of the spec. */
1311 const char *ptr
; /* available ptr if no static pointer */
1313 /* The following fields are not initialized */
1314 /* by EXTRA_SPECS */
1315 const char **ptr_spec
; /* pointer to the spec itself. */
1316 struct spec_list
*next
; /* Next spec in linked list. */
1317 int name_len
; /* length of the name */
1318 int alloc_p
; /* whether string was allocated */
1321 #define INIT_STATIC_SPEC(NAME,PTR) \
1322 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1324 /* List of statically defined specs. */
1325 static struct spec_list static_specs
[] =
1327 INIT_STATIC_SPEC ("asm", &asm_spec
),
1328 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1329 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1330 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1331 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1332 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1333 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1334 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1335 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1336 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1337 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1338 INIT_STATIC_SPEC ("link", &link_spec
),
1339 INIT_STATIC_SPEC ("lib", &lib_spec
),
1340 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1341 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1342 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1343 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1344 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1345 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1346 INIT_STATIC_SPEC ("version", &compiler_version
),
1347 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1348 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1349 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1350 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1351 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1352 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1353 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1354 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1355 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1356 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1359 #ifdef EXTRA_SPECS /* additional specs needed */
1360 /* Structure to keep track of just the first two args of a spec_list.
1361 That is all that the EXTRA_SPECS macro gives us. */
1364 const char *const name
;
1365 const char *const ptr
;
1368 static const struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1369 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1372 /* List of dynamically allocates specs that have been defined so far. */
1374 static struct spec_list
*specs
= (struct spec_list
*) 0;
1376 /* Add appropriate libgcc specs to OBSTACK, taking into account
1377 various permutations of -shared-libgcc, -shared, and such. */
1380 init_gcc_specs (obstack
, shared_name
, static_name
)
1381 struct obstack
*obstack
;
1382 const char *shared_name
;
1383 const char *static_name
;
1387 /* If we see -shared-libgcc, then use the shared version. */
1388 sprintf (buffer
, "%%{shared-libgcc:%s %s}", shared_name
, static_name
);
1389 obstack_grow (obstack
, buffer
, strlen (buffer
));
1390 /* If we see -static-libgcc, then use the static version. */
1391 sprintf (buffer
, "%%{static-libgcc:%s}", static_name
);
1392 obstack_grow (obstack
, buffer
, strlen (buffer
));
1393 /* Otherwise, if we see -shared, then use the shared version. */
1395 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s %s}}}",
1396 shared_name
, static_name
);
1397 obstack_grow (obstack
, buffer
, strlen (buffer
));
1398 /* Otherwise, use the static version. */
1400 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1402 obstack_grow (obstack
, buffer
, strlen (buffer
));
1405 /* Initialize the specs lookup routines. */
1410 struct spec_list
*next
= (struct spec_list
*) 0;
1411 struct spec_list
*sl
= (struct spec_list
*) 0;
1415 return; /* Already initialized. */
1418 notice ("Using builtin specs.\n");
1421 extra_specs
= (struct spec_list
*)
1422 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1424 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1426 sl
= &extra_specs
[i
];
1427 sl
->name
= extra_specs_1
[i
].name
;
1428 sl
->ptr
= extra_specs_1
[i
].ptr
;
1430 sl
->name_len
= strlen (sl
->name
);
1431 sl
->ptr_spec
= &sl
->ptr
;
1436 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1438 sl
= &static_specs
[i
];
1443 #ifdef ENABLE_SHARED_LIBGCC
1444 /* ??? If neither -shared-libgcc nor --static-libgcc was
1445 seen, then we should be making an educated guess. Some proposed
1446 heuristics for ELF include:
1448 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1449 program will be doing dynamic loading, which will likely
1450 need the shared libgcc.
1452 (2) If "-ldl", then it's also a fair bet that we're doing
1455 (3) For each ET_DYN we're linking against (either through -lfoo
1456 or /some/path/foo.so), check to see whether it or one of
1457 its dependancies depends on a shared libgcc.
1461 If the runtime is fixed to look for program headers instead
1462 of calling __register_frame_info at all, for each object,
1463 use the shared libgcc if any EH symbol referenced.
1465 If crtstuff is fixed to not invoke __register_frame_info
1466 automatically, for each object, use the shared libgcc if
1467 any non-empty unwind section found.
1469 Doing any of this probably requires invoking an external program to
1470 do the actual object file scanning. */
1472 const char *p
= libgcc_spec
;
1475 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1476 when given the proper command line arguments. */
1479 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1481 init_gcc_specs (&obstack
,
1482 #ifdef NO_SHARED_LIBGCC_MULTILIB
1492 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1494 /* Ug. We don't know shared library extensions. Hope that
1495 systems that use this form don't do shared libraries. */
1496 init_gcc_specs (&obstack
,
1497 #ifdef NO_SHARED_LIBGCC_MULTILIB
1509 obstack_1grow (&obstack
, *p
);
1510 in_sep
= (*p
== ' ');
1515 obstack_1grow (&obstack
, '\0');
1516 libgcc_spec
= obstack_finish (&obstack
);
1519 #ifdef USE_AS_TRADITIONAL_FORMAT
1520 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1522 static const char tf
[] = "--traditional-format ";
1523 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1524 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1525 asm_spec
= obstack_finish (&obstack
);
1532 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1533 removed; If the spec starts with a + then SPEC is added to the end of the
1537 set_spec (name
, spec
)
1541 struct spec_list
*sl
;
1542 const char *old_spec
;
1543 int name_len
= strlen (name
);
1546 /* If this is the first call, initialize the statically allocated specs. */
1549 struct spec_list
*next
= (struct spec_list
*) 0;
1550 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1552 sl
= &static_specs
[i
];
1559 /* See if the spec already exists. */
1560 for (sl
= specs
; sl
; sl
= sl
->next
)
1561 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1566 /* Not found - make it. */
1567 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1568 sl
->name
= xstrdup (name
);
1569 sl
->name_len
= name_len
;
1570 sl
->ptr_spec
= &sl
->ptr
;
1572 *(sl
->ptr_spec
) = "";
1577 old_spec
= *(sl
->ptr_spec
);
1578 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1579 ? concat (old_spec
, spec
+ 1, NULL
)
1584 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1587 /* Free the old spec. */
1588 if (old_spec
&& sl
->alloc_p
)
1589 free ((PTR
) old_spec
);
1594 /* Accumulate a command (program name and args), and run it. */
1596 /* Vector of pointers to arguments in the current line of specifications. */
1598 static const char **argbuf
;
1600 /* Number of elements allocated in argbuf. */
1602 static int argbuf_length
;
1604 /* Number of elements in argbuf currently in use (containing args). */
1606 static int argbuf_index
;
1608 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1609 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1612 static struct temp_name
{
1613 const char *suffix
; /* suffix associated with the code. */
1614 int length
; /* strlen (suffix). */
1615 int unique
; /* Indicates whether %g or %u/%U was used. */
1616 const char *filename
; /* associated filename. */
1617 int filename_length
; /* strlen (filename). */
1618 struct temp_name
*next
;
1621 /* Number of commands executed so far. */
1623 static int execution_count
;
1625 /* Number of commands that exited with a signal. */
1627 static int signal_count
;
1629 /* Name with which this program was invoked. */
1631 static const char *programname
;
1633 /* Clear out the vector of arguments (after a command is executed). */
1641 /* Add one argument to the vector at the end.
1642 This is done when a space is seen or at the end of the line.
1643 If DELETE_ALWAYS is nonzero, the arg is a filename
1644 and the file should be deleted eventually.
1645 If DELETE_FAILURE is nonzero, the arg is a filename
1646 and the file should be deleted if this compilation fails. */
1649 store_arg (arg
, delete_always
, delete_failure
)
1651 int delete_always
, delete_failure
;
1653 if (argbuf_index
+ 1 == argbuf_length
)
1655 = (const char **) xrealloc (argbuf
,
1656 (argbuf_length
*= 2) * sizeof (const char *));
1658 argbuf
[argbuf_index
++] = arg
;
1659 argbuf
[argbuf_index
] = 0;
1661 if (delete_always
|| delete_failure
)
1662 record_temp_file (arg
, delete_always
, delete_failure
);
1665 /* Load specs from a file name named FILENAME, replacing occurances of
1666 various different types of line-endings, \r\n, \n\r and just \r, with
1670 load_specs (filename
)
1671 const char *filename
;
1675 struct stat statbuf
;
1682 notice ("Reading specs from %s\n", filename
);
1684 /* Open and stat the file. */
1685 desc
= open (filename
, O_RDONLY
, 0);
1687 pfatal_with_name (filename
);
1688 if (stat (filename
, &statbuf
) < 0)
1689 pfatal_with_name (filename
);
1691 /* Read contents of file into BUFFER. */
1692 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1693 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1695 pfatal_with_name (filename
);
1696 buffer
[readlen
] = 0;
1699 specs
= xmalloc (readlen
+ 1);
1701 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1707 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1709 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1723 /* Read compilation specs from a file named FILENAME,
1724 replacing the default ones.
1726 A suffix which starts with `*' is a definition for
1727 one of the machine-specific sub-specs. The "suffix" should be
1728 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1729 The corresponding spec is stored in asm_spec, etc.,
1730 rather than in the `compilers' vector.
1732 Anything invalid in the file is a fatal error. */
1735 read_specs (filename
, main_p
)
1736 const char *filename
;
1742 buffer
= load_specs (filename
);
1744 /* Scan BUFFER for specs, putting them in the vector. */
1750 char *in
, *out
, *p1
, *p2
, *p3
;
1752 /* Advance P in BUFFER to the next nonblank nocomment line. */
1753 p
= skip_whitespace (p
);
1757 /* Is this a special command that starts with '%'? */
1758 /* Don't allow this for the main specs file, since it would
1759 encourage people to overwrite it. */
1760 if (*p
== '%' && !main_p
)
1763 while (*p
&& *p
!= '\n')
1769 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1770 && (p1
[sizeof "%include" - 1] == ' '
1771 || p1
[sizeof "%include" - 1] == '\t'))
1775 p1
+= sizeof ("%include");
1776 while (*p1
== ' ' || *p1
== '\t')
1779 if (*p1
++ != '<' || p
[-2] != '>')
1780 fatal ("specs %%include syntax malformed after %ld characters",
1781 (long) (p1
- buffer
+ 1));
1784 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1785 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1788 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1789 && (p1
[sizeof "%include_noerr" - 1] == ' '
1790 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1794 p1
+= sizeof "%include_noerr";
1795 while (*p1
== ' ' || *p1
== '\t')
1798 if (*p1
++ != '<' || p
[-2] != '>')
1799 fatal ("specs %%include syntax malformed after %ld characters",
1800 (long) (p1
- buffer
+ 1));
1803 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1805 read_specs (new_filename
, FALSE
);
1806 else if (verbose_flag
)
1807 notice ("Could not find specs file %s\n", p1
);
1810 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1811 && (p1
[sizeof "%rename" - 1] == ' '
1812 || p1
[sizeof "%rename" - 1] == '\t'))
1815 struct spec_list
*sl
;
1817 /* Get original name */
1818 p1
+= sizeof "%rename";
1819 while (*p1
== ' ' || *p1
== '\t')
1822 if (! ISALPHA ((unsigned char) *p1
))
1823 fatal ("specs %%rename syntax malformed after %ld characters",
1824 (long) (p1
- buffer
));
1827 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1830 if (*p2
!= ' ' && *p2
!= '\t')
1831 fatal ("specs %%rename syntax malformed after %ld characters",
1832 (long) (p2
- buffer
));
1836 while (*p2
== ' ' || *p2
== '\t')
1839 if (! ISALPHA ((unsigned char) *p2
))
1840 fatal ("specs %%rename syntax malformed after %ld characters",
1841 (long) (p2
- buffer
));
1843 /* Get new spec name. */
1845 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1849 fatal ("specs %%rename syntax malformed after %ld characters",
1850 (long) (p3
- buffer
));
1853 for (sl
= specs
; sl
; sl
= sl
->next
)
1854 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1858 fatal ("specs %s spec was not found to be renamed", p1
);
1860 if (strcmp (p1
, p2
) == 0)
1865 notice ("rename spec %s to %s\n", p1
, p2
);
1867 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1871 set_spec (p2
, *(sl
->ptr_spec
));
1873 free ((PTR
) *(sl
->ptr_spec
));
1875 *(sl
->ptr_spec
) = "";
1880 fatal ("specs unknown %% command after %ld characters",
1881 (long) (p1
- buffer
));
1884 /* Find the colon that should end the suffix. */
1886 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1889 /* The colon shouldn't be missing. */
1891 fatal ("specs file malformed after %ld characters",
1892 (long) (p1
- buffer
));
1894 /* Skip back over trailing whitespace. */
1896 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1899 /* Copy the suffix to a string. */
1900 suffix
= save_string (p
, p2
- p
);
1901 /* Find the next line. */
1902 p
= skip_whitespace (p1
+ 1);
1904 fatal ("specs file malformed after %ld characters",
1905 (long) (p
- buffer
));
1908 /* Find next blank line or end of string. */
1909 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1912 /* Specs end at the blank line and do not include the newline. */
1913 spec
= save_string (p
, p1
- p
);
1916 /* Delete backslash-newline sequences from the spec. */
1921 if (in
[0] == '\\' && in
[1] == '\n')
1923 else if (in
[0] == '#')
1924 while (*in
&& *in
!= '\n')
1932 if (suffix
[0] == '*')
1934 if (! strcmp (suffix
, "*link_command"))
1935 link_command_spec
= spec
;
1937 set_spec (suffix
+ 1, spec
);
1941 /* Add this pair to the vector. */
1943 = ((struct compiler
*)
1944 xrealloc (compilers
,
1945 (n_compilers
+ 2) * sizeof (struct compiler
)));
1947 compilers
[n_compilers
].suffix
= suffix
;
1948 compilers
[n_compilers
].spec
= spec
;
1950 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1954 link_command_spec
= spec
;
1957 if (link_command_spec
== 0)
1958 fatal ("spec file has no spec for linking");
1961 /* Record the names of temporary files we tell compilers to write,
1962 and delete them at the end of the run. */
1964 /* This is the common prefix we use to make temp file names.
1965 It is chosen once for each run of this program.
1966 It is substituted into a spec by %g or %j.
1967 Thus, all temp file names contain this prefix.
1968 In practice, all temp file names start with this prefix.
1970 This prefix comes from the envvar TMPDIR if it is defined;
1971 otherwise, from the P_tmpdir macro if that is defined;
1972 otherwise, in /usr/tmp or /tmp;
1973 or finally the current directory if all else fails. */
1975 static const char *temp_filename
;
1977 /* Length of the prefix. */
1979 static int temp_filename_length
;
1981 /* Define the list of temporary files to delete. */
1986 struct temp_file
*next
;
1989 /* Queue of files to delete on success or failure of compilation. */
1990 static struct temp_file
*always_delete_queue
;
1991 /* Queue of files to delete on failure of compilation. */
1992 static struct temp_file
*failure_delete_queue
;
1994 /* Record FILENAME as a file to be deleted automatically.
1995 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1996 otherwise delete it in any case.
1997 FAIL_DELETE nonzero means delete it if a compilation step fails;
1998 otherwise delete it in any case. */
2001 record_temp_file (filename
, always_delete
, fail_delete
)
2002 const char *filename
;
2006 char *const name
= xstrdup (filename
);
2010 struct temp_file
*temp
;
2011 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2012 if (! strcmp (name
, temp
->name
))
2015 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2016 temp
->next
= always_delete_queue
;
2018 always_delete_queue
= temp
;
2025 struct temp_file
*temp
;
2026 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2027 if (! strcmp (name
, temp
->name
))
2030 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
2031 temp
->next
= failure_delete_queue
;
2033 failure_delete_queue
= temp
;
2039 /* Delete all the temporary files whose names we previously recorded. */
2042 delete_if_ordinary (name
)
2049 printf ("Delete %s? (y or n) ", name
);
2053 while ((c
= getchar ()) != '\n' && c
!= EOF
)
2056 if (i
== 'y' || i
== 'Y')
2058 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
2059 if (unlink (name
) < 0)
2061 perror_with_name (name
);
2065 delete_temp_files ()
2067 struct temp_file
*temp
;
2069 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2070 delete_if_ordinary (temp
->name
);
2071 always_delete_queue
= 0;
2074 /* Delete all the files to be deleted on error. */
2077 delete_failure_queue ()
2079 struct temp_file
*temp
;
2081 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2082 delete_if_ordinary (temp
->name
);
2086 clear_failure_queue ()
2088 failure_delete_queue
= 0;
2091 /* Build a list of search directories from PATHS.
2092 PREFIX is a string to prepend to the list.
2093 If CHECK_DIR_P is non-zero we ensure the directory exists.
2094 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2095 It is also used by the --print-search-dirs flag. */
2098 build_search_list (paths
, prefix
, check_dir_p
)
2099 struct path_prefix
*paths
;
2103 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2105 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2106 int first_time
= TRUE
;
2107 struct prefix_list
*pprefix
;
2109 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2110 obstack_1grow (&collect_obstack
, '=');
2112 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2114 int len
= strlen (pprefix
->prefix
);
2118 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2121 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2124 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2125 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2128 if (just_machine_suffix
2129 && pprefix
->require_machine_suffix
== 2
2131 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2134 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2137 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2138 obstack_grow (&collect_obstack
, just_machine_suffix
,
2142 if (! pprefix
->require_machine_suffix
)
2145 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2148 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2152 obstack_1grow (&collect_obstack
, '\0');
2153 return obstack_finish (&collect_obstack
);
2156 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2160 putenv_from_prefixes (paths
, env_var
)
2161 struct path_prefix
*paths
;
2162 const char *env_var
;
2164 putenv (build_search_list (paths
, env_var
, 1));
2169 /* FIXME: the location independence code for VMS is hairier than this,
2170 and hasn't been written. */
2172 /* Split a filename into component directories. */
2175 split_directories (name
, ptr_num_dirs
)
2184 /* Count the number of directories. Special case MSDOS disk names as part
2185 of the initial directory. */
2187 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2188 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2193 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2195 while ((ch
= *p
++) != '\0')
2197 if (IS_DIR_SEPARATOR (ch
))
2200 while (IS_DIR_SEPARATOR (*p
))
2205 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2207 /* Now copy the directory parts. */
2210 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2211 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2213 dirs
[num_dirs
++] = save_string (p
, 3);
2216 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2219 while ((ch
= *p
++) != '\0')
2221 if (IS_DIR_SEPARATOR (ch
))
2223 while (IS_DIR_SEPARATOR (*p
))
2226 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2232 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2234 dirs
[num_dirs
] = NULL
;
2236 *ptr_num_dirs
= num_dirs
;
2241 /* Release storage held by split directories. */
2244 free_split_directories (dirs
)
2249 while (dirs
[i
] != NULL
)
2252 free ((char *) dirs
);
2255 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2256 to PREFIX starting with the directory portion of PROGNAME and a relative
2257 pathname of the difference between BIN_PREFIX and PREFIX.
2259 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2260 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2261 function will return /red/green/blue/../omega.
2263 If no relative prefix can be found, return NULL. */
2266 make_relative_prefix (progname
, bin_prefix
, prefix
)
2267 const char *progname
;
2268 const char *bin_prefix
;
2271 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2272 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2275 prog_dirs
= split_directories (progname
, &prog_num
);
2276 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2278 /* If there is no full pathname, try to find the program by checking in each
2279 of the directories specified in the PATH environment variable. */
2284 GET_ENV_PATH_LIST (temp
, "PATH");
2287 char *startp
, *endp
, *nstore
;
2288 size_t prefixlen
= strlen (temp
) + 1;
2292 nstore
= (char *) alloca (prefixlen
+ strlen (progname
) + 1);
2294 startp
= endp
= temp
;
2297 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2302 nstore
[1] = DIR_SEPARATOR
;
2307 strncpy (nstore
, startp
, endp
- startp
);
2308 if (! IS_DIR_SEPARATOR (endp
[-1]))
2310 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2311 nstore
[endp
- startp
+ 1] = 0;
2314 nstore
[endp
- startp
] = 0;
2316 strcat (nstore
, progname
);
2317 if (! access (nstore
, X_OK
)
2318 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2319 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2323 free_split_directories (prog_dirs
);
2325 prog_dirs
= split_directories (progname
, &prog_num
);
2331 endp
= startp
= endp
+ 1;
2339 /* Remove the program name from comparison of directory names. */
2342 /* Determine if the compiler is installed in the standard location, and if
2343 so, we don't need to specify relative directories. Also, if argv[0]
2344 doesn't contain any directory specifiers, there is not much we can do. */
2346 if (prog_num
== bin_num
)
2348 for (i
= 0; i
< bin_num
; i
++)
2350 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2354 if (prog_num
<= 0 || i
== bin_num
)
2357 free_split_directories (prog_dirs
);
2358 free_split_directories (bin_dirs
);
2359 prog_dirs
= bin_dirs
= (char **) 0;
2364 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2366 /* Find how many directories are in common between bin_prefix & prefix. */
2367 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2368 for (common
= 0; common
< n
; common
++)
2370 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2374 /* If there are no common directories, there can be no relative prefix. */
2377 free_split_directories (prog_dirs
);
2378 free_split_directories (bin_dirs
);
2379 free_split_directories (prefix_dirs
);
2383 /* Build up the pathnames in argv[0]. */
2384 for (i
= 0; i
< prog_num
; i
++)
2385 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2387 /* Now build up the ..'s. */
2388 for (i
= common
; i
< n
; i
++)
2390 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2391 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2394 /* Put in directories to move over to prefix. */
2395 for (i
= common
; i
< prefix_num
; i
++)
2396 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2398 free_split_directories (prog_dirs
);
2399 free_split_directories (bin_dirs
);
2400 free_split_directories (prefix_dirs
);
2402 obstack_1grow (&obstack
, '\0');
2403 return obstack_finish (&obstack
);
2407 /* Check whether NAME can be accessed in MODE. This is like access,
2408 except that it never considers directories to be executable. */
2411 access_check (name
, mode
)
2419 if (stat (name
, &st
) < 0
2420 || S_ISDIR (st
.st_mode
))
2424 return access (name
, mode
);
2427 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2428 access to check permissions.
2429 Return 0 if not found, otherwise return its name, allocated with malloc. */
2432 find_a_file (pprefix
, name
, mode
)
2433 struct path_prefix
*pprefix
;
2438 const char *const file_suffix
=
2439 ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2440 struct prefix_list
*pl
;
2441 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2443 #ifdef DEFAULT_ASSEMBLER
2444 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2445 return xstrdup (DEFAULT_ASSEMBLER
);
2448 #ifdef DEFAULT_LINKER
2449 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2450 return xstrdup (DEFAULT_LINKER
);
2454 len
+= strlen (machine_suffix
);
2456 temp
= xmalloc (len
);
2458 /* Determine the filename to execute (special case for absolute paths). */
2460 if (IS_ABSOLUTE_PATHNAME (name
))
2462 if (access (name
, mode
) == 0)
2464 strcpy (temp
, name
);
2469 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2473 /* Some systems have a suffix for executable files.
2474 So try appending that first. */
2475 if (file_suffix
[0] != 0)
2477 strcpy (temp
, pl
->prefix
);
2478 strcat (temp
, machine_suffix
);
2479 strcat (temp
, name
);
2480 strcat (temp
, file_suffix
);
2481 if (access_check (temp
, mode
) == 0)
2483 if (pl
->used_flag_ptr
!= 0)
2484 *pl
->used_flag_ptr
= 1;
2489 /* Now try just the name. */
2490 strcpy (temp
, pl
->prefix
);
2491 strcat (temp
, machine_suffix
);
2492 strcat (temp
, name
);
2493 if (access_check (temp
, mode
) == 0)
2495 if (pl
->used_flag_ptr
!= 0)
2496 *pl
->used_flag_ptr
= 1;
2501 /* Certain prefixes are tried with just the machine type,
2502 not the version. This is used for finding as, ld, etc. */
2503 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2505 /* Some systems have a suffix for executable files.
2506 So try appending that first. */
2507 if (file_suffix
[0] != 0)
2509 strcpy (temp
, pl
->prefix
);
2510 strcat (temp
, just_machine_suffix
);
2511 strcat (temp
, name
);
2512 strcat (temp
, file_suffix
);
2513 if (access_check (temp
, mode
) == 0)
2515 if (pl
->used_flag_ptr
!= 0)
2516 *pl
->used_flag_ptr
= 1;
2521 strcpy (temp
, pl
->prefix
);
2522 strcat (temp
, just_machine_suffix
);
2523 strcat (temp
, name
);
2524 if (access_check (temp
, mode
) == 0)
2526 if (pl
->used_flag_ptr
!= 0)
2527 *pl
->used_flag_ptr
= 1;
2532 /* Certain prefixes can't be used without the machine suffix
2533 when the machine or version is explicitly specified. */
2534 if (! pl
->require_machine_suffix
)
2536 /* Some systems have a suffix for executable files.
2537 So try appending that first. */
2538 if (file_suffix
[0] != 0)
2540 strcpy (temp
, pl
->prefix
);
2541 strcat (temp
, name
);
2542 strcat (temp
, file_suffix
);
2543 if (access_check (temp
, mode
) == 0)
2545 if (pl
->used_flag_ptr
!= 0)
2546 *pl
->used_flag_ptr
= 1;
2551 strcpy (temp
, pl
->prefix
);
2552 strcat (temp
, name
);
2553 if (access_check (temp
, mode
) == 0)
2555 if (pl
->used_flag_ptr
!= 0)
2556 *pl
->used_flag_ptr
= 1;
2566 /* Ranking of prefixes in the sort list. -B prefixes are put before
2569 enum path_prefix_priority
2571 PREFIX_PRIORITY_B_OPT
,
2572 PREFIX_PRIORITY_LAST
2575 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2576 order according to PRIORITY. Within each PRIORITY, new entries are
2579 If WARN is nonzero, we will warn if no file is found
2580 through this prefix. WARN should point to an int
2581 which will be set to 1 if this entry is used.
2583 COMPONENT is the value to be passed to update_path.
2585 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2586 the complete value of machine_suffix.
2587 2 means try both machine_suffix and just_machine_suffix. */
2590 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2591 struct path_prefix
*pprefix
;
2593 const char *component
;
2594 /* enum prefix_priority */ int priority
;
2595 int require_machine_suffix
;
2598 struct prefix_list
*pl
, **prev
;
2601 for (prev
= &pprefix
->plist
;
2602 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2603 prev
= &(*prev
)->next
)
2606 /* Keep track of the longest prefix */
2608 prefix
= update_path (prefix
, component
);
2609 len
= strlen (prefix
);
2610 if (len
> pprefix
->max_len
)
2611 pprefix
->max_len
= len
;
2613 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2614 pl
->prefix
= prefix
;
2615 pl
->require_machine_suffix
= require_machine_suffix
;
2616 pl
->used_flag_ptr
= warn
;
2617 pl
->priority
= priority
;
2621 /* Insert after PREV */
2626 /* Execute the command specified by the arguments on the current line of spec.
2627 When using pipes, this includes several piped-together commands
2628 with `|' between them.
2630 Return 0 if successful, -1 if failed. */
2636 int n_commands
; /* # of command. */
2640 const char *prog
; /* program name. */
2641 const char **argv
; /* vector of args. */
2642 int pid
; /* pid of process for this command. */
2645 struct command
*commands
; /* each command buffer with above info. */
2647 /* Count # of piped commands. */
2648 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2649 if (strcmp (argbuf
[i
], "|") == 0)
2652 /* Get storage for each command. */
2653 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2655 /* Split argbuf into its separate piped processes,
2656 and record info about each one.
2657 Also search for the programs that are to be run. */
2659 commands
[0].prog
= argbuf
[0]; /* first command. */
2660 commands
[0].argv
= &argbuf
[0];
2661 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2664 commands
[0].argv
[0] = string
;
2666 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2667 if (strcmp (argbuf
[i
], "|") == 0)
2668 { /* each command. */
2669 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2670 fatal ("-pipe not supported");
2672 argbuf
[i
] = 0; /* termination of command args. */
2673 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2674 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2675 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2677 commands
[n_commands
].argv
[0] = string
;
2681 argbuf
[argbuf_index
] = 0;
2683 /* If -v, print what we are about to do, and maybe query. */
2687 /* For help listings, put a blank line between sub-processes. */
2688 if (print_help_list
)
2689 fputc ('\n', stderr
);
2691 /* Print each piped command as a separate line. */
2692 for (i
= 0; i
< n_commands
; i
++)
2694 const char *const *j
;
2696 for (j
= commands
[i
].argv
; *j
; j
++)
2697 fprintf (stderr
, " %s", *j
);
2699 /* Print a pipe symbol after all but the last command. */
2700 if (i
+ 1 != n_commands
)
2701 fprintf (stderr
, " |");
2702 fprintf (stderr
, "\n");
2706 notice ("\nGo ahead? (y or n) ");
2710 while (getchar () != '\n')
2713 if (i
!= 'y' && i
!= 'Y')
2718 /* Run each piped subprocess. */
2720 for (i
= 0; i
< n_commands
; i
++)
2722 char *errmsg_fmt
, *errmsg_arg
;
2723 const char *string
= commands
[i
].argv
[0];
2725 /* For some bizarre reason, the second argument of execvp() is
2726 char *const *, not const char *const *. */
2727 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2728 programname
, temp_filename
,
2729 &errmsg_fmt
, &errmsg_arg
,
2730 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2731 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2732 | (string
== commands
[i
].prog
2733 ? PEXECUTE_SEARCH
: 0)
2734 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2736 if (commands
[i
].pid
== -1)
2737 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2739 if (string
!= commands
[i
].prog
)
2740 free ((PTR
) string
);
2745 /* Wait for all the subprocesses to finish.
2746 We don't care what order they finish in;
2747 we know that N_COMMANDS waits will get them all.
2748 Ignore subprocesses that we don't know about,
2749 since they can be spawned by the process that exec'ed us. */
2753 #ifdef HAVE_GETRUSAGE
2755 double ut
= 0.0, st
= 0.0;
2758 for (i
= 0; i
< n_commands
;)
2764 pid
= pwait (commands
[i
].pid
, &status
, 0);
2768 #ifdef HAVE_GETRUSAGE
2771 /* getrusage returns the total resource usage of all children
2772 up to now. Copy the previous values into prus, get the
2773 current statistics, then take the difference. */
2776 getrusage (RUSAGE_CHILDREN
, &rus
);
2777 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2778 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2779 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2781 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2782 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2783 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2787 for (j
= 0; j
< n_commands
; j
++)
2788 if (commands
[j
].pid
== pid
)
2791 if (WIFSIGNALED (status
))
2794 /* SIGPIPE is a special case. It happens in -pipe mode
2795 when the compiler dies before the preprocessor is
2796 done, or the assembler dies before the compiler is
2797 done. There's generally been an error already, and
2798 this is just fallout. So don't generate another error
2799 unless we would otherwise have succeeded. */
2800 if (WTERMSIG (status
) == SIGPIPE
2801 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2806 Internal error: %s (program %s)\n\
2807 Please submit a full bug report.\n\
2808 See %s for instructions.",
2809 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2814 else if (WIFEXITED (status
)
2815 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2817 if (WEXITSTATUS (status
) > greatest_status
)
2818 greatest_status
= WEXITSTATUS (status
);
2821 #ifdef HAVE_GETRUSAGE
2822 if (report_times
&& ut
+ st
!= 0)
2823 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2832 /* Find all the switches given to us
2833 and make a vector describing them.
2834 The elements of the vector are strings, one per switch given.
2835 If a switch uses following arguments, then the `part1' field
2836 is the switch itself and the `args' field
2837 is a null-terminated vector containing the following arguments.
2838 The `live_cond' field is:
2840 1 if the switch is true in a conditional spec,
2841 -1 if false (overridden by a later switch)
2842 -2 if this switch should be ignored (used in %{<S})
2843 The `validated' field is nonzero if any spec has looked at this switch;
2844 if it remains zero at the end of the run, it must be meaningless. */
2847 #define SWITCH_FALSE -1
2848 #define SWITCH_IGNORE -2
2849 #define SWITCH_LIVE 1
2856 unsigned char validated
;
2857 unsigned char ordering
;
2860 static struct switchstr
*switches
;
2862 static int n_switches
;
2867 const char *language
;
2870 /* Also a vector of input files specified. */
2872 static struct infile
*infiles
;
2876 /* This counts the number of libraries added by lang_specific_driver, so that
2877 we can tell if there were any user supplied any files or libraries. */
2879 static int added_libraries
;
2881 /* And a vector of corresponding output files is made up later. */
2883 const char **outfiles
;
2885 /* Used to track if none of the -B paths are used. */
2888 /* Used to track if standard path isn't used and -b or -V is specified. */
2889 static int warn_std
;
2891 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2892 static int *warn_std_ptr
= 0;
2894 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2896 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2897 is true if we should look for an executable suffix as well. */
2900 convert_filename (name
, do_exe
)
2910 len
= strlen (name
);
2912 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2913 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2915 && name
[len
- 2] == '.'
2916 && name
[len
- 1] == 'o')
2918 obstack_grow (&obstack
, name
, len
- 2);
2919 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2920 name
= obstack_finish (&obstack
);
2924 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2925 /* If there is no filetype, make it the executable suffix (which includes
2926 the "."). But don't get confused if we have just "-o". */
2927 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2930 for (i
= len
- 1; i
>= 0; i
--)
2931 if (IS_DIR_SEPARATOR (name
[i
]))
2934 for (i
++; i
< len
; i
++)
2938 obstack_grow (&obstack
, name
, len
);
2939 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2940 strlen (TARGET_EXECUTABLE_SUFFIX
));
2941 name
= obstack_finish (&obstack
);
2948 /* Display the command line switches accepted by gcc. */
2952 printf (_("Usage: %s [options] file...\n"), programname
);
2953 fputs (_("Options:\n"), stdout
);
2955 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2956 fputs (_(" --help Display this information\n"), stdout
);
2957 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2959 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2960 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2961 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2962 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2963 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2964 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2965 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2966 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2967 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2969 -print-multi-lib Display the mapping between command line options and\n\
2970 multiple library search directories\n"), stdout
);
2971 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2972 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2973 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2974 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2975 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2976 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2977 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2978 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
2979 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2980 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2981 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2982 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2983 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2984 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2985 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2986 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2987 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2989 -x <language> Specify the language of the following input files\n\
2990 Permissable languages include: c c++ assembler none\n\
2991 'none' means revert to the default behaviour of\n\
2992 guessing the language based on the file's extension\n\
2996 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2997 passed on to the various sub-processes invoked by %s. In order to pass\n\
2998 other options on to these processes the -W<letter> options must be used.\n\
3001 /* The rest of the options are displayed by invocations of the various
3006 add_preprocessor_option (option
, len
)
3010 n_preprocessor_options
++;
3012 if (! preprocessor_options
)
3013 preprocessor_options
3014 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
3016 preprocessor_options
3017 = (char **) xrealloc (preprocessor_options
,
3018 n_preprocessor_options
* sizeof (char *));
3020 preprocessor_options
[n_preprocessor_options
- 1] =
3021 save_string (option
, len
);
3025 add_assembler_option (option
, len
)
3029 n_assembler_options
++;
3031 if (! assembler_options
)
3033 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3036 = (char **) xrealloc (assembler_options
,
3037 n_assembler_options
* sizeof (char *));
3039 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3043 add_linker_option (option
, len
)
3049 if (! linker_options
)
3051 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3054 = (char **) xrealloc (linker_options
,
3055 n_linker_options
* sizeof (char *));
3057 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3060 /* Create the vector `switches' and its contents.
3061 Store its length in `n_switches'. */
3064 process_command (argc
, argv
)
3066 const char *const *argv
;
3071 const char *spec_lang
= 0;
3072 int last_language_n_infiles
;
3075 int lang_n_infiles
= 0;
3076 #ifdef MODIFY_TARGET_NAME
3077 int is_modify_target_name
;
3081 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3085 added_libraries
= 0;
3087 /* Figure compiler version from version string. */
3089 compiler_version
= temp1
= xstrdup (version_string
);
3091 for (; *temp1
; ++temp1
)
3100 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3101 see if we can create it from the pathname specified in argv[0]. */
3104 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3105 if (!gcc_exec_prefix
)
3107 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3108 standard_exec_prefix
);
3109 if (gcc_exec_prefix
)
3110 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3114 if (gcc_exec_prefix
)
3116 int len
= strlen (gcc_exec_prefix
);
3118 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3119 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3121 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3122 if (IS_DIR_SEPARATOR (*temp
)
3123 && strncmp (temp
+ 1, "lib", 3) == 0
3124 && IS_DIR_SEPARATOR (temp
[4])
3125 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3126 len
-= sizeof ("/lib/gcc-lib/") - 1;
3129 set_std_prefix (gcc_exec_prefix
, len
);
3130 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3131 PREFIX_PRIORITY_LAST
, 0, NULL
);
3132 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3133 PREFIX_PRIORITY_LAST
, 0, NULL
);
3136 /* COMPILER_PATH and LIBRARY_PATH have values
3137 that are lists of directory names with colons. */
3139 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3142 const char *startp
, *endp
;
3143 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3145 startp
= endp
= temp
;
3148 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3150 strncpy (nstore
, startp
, endp
- startp
);
3152 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3153 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3155 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3156 nstore
[endp
- startp
+ 1] = 0;
3159 nstore
[endp
- startp
] = 0;
3160 add_prefix (&exec_prefixes
, nstore
, 0,
3161 PREFIX_PRIORITY_LAST
, 0, NULL
);
3162 add_prefix (&include_prefixes
,
3163 concat (nstore
, "include", NULL
),
3164 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3167 endp
= startp
= endp
+ 1;
3174 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3175 if (temp
&& *cross_compile
== '0')
3177 const char *startp
, *endp
;
3178 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3180 startp
= endp
= temp
;
3183 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3185 strncpy (nstore
, startp
, endp
- startp
);
3187 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3188 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3190 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3191 nstore
[endp
- startp
+ 1] = 0;
3194 nstore
[endp
- startp
] = 0;
3195 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3196 PREFIX_PRIORITY_LAST
, 0, NULL
);
3199 endp
= startp
= endp
+ 1;
3206 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3207 GET_ENV_PATH_LIST (temp
, "LPATH");
3208 if (temp
&& *cross_compile
== '0')
3210 const char *startp
, *endp
;
3211 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3213 startp
= endp
= temp
;
3216 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3218 strncpy (nstore
, startp
, endp
- startp
);
3220 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3221 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3223 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3224 nstore
[endp
- startp
+ 1] = 0;
3227 nstore
[endp
- startp
] = 0;
3228 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3229 PREFIX_PRIORITY_LAST
, 0, NULL
);
3232 endp
= startp
= endp
+ 1;
3239 /* Convert new-style -- options to old-style. */
3240 translate_options (&argc
, &argv
);
3242 /* Do language-specific adjustment/addition of flags. */
3243 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3245 /* Scan argv twice. Here, the first time, just count how many switches
3246 there will be in their vector, and how many input files in theirs.
3247 Also parse any switches that determine the configuration name, such as -b.
3248 Here we also parse the switches that cc itself uses (e.g. -v). */
3250 for (i
= 1; i
< argc
; i
++)
3252 if (! strcmp (argv
[i
], "-dumpspecs"))
3254 struct spec_list
*sl
;
3256 for (sl
= specs
; sl
; sl
= sl
->next
)
3257 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3258 if (link_command_spec
)
3259 printf ("*link_command:\n%s\n\n", link_command_spec
);
3262 else if (! strcmp (argv
[i
], "-dumpversion"))
3264 printf ("%s\n", spec_version
);
3267 else if (! strcmp (argv
[i
], "-dumpmachine"))
3269 printf ("%s\n", spec_machine
);
3272 else if (strcmp (argv
[i
], "-fhelp") == 0)
3274 /* translate_options () has turned --help into -fhelp. */
3275 print_help_list
= 1;
3277 /* We will be passing a dummy file on to the sub-processes. */
3281 add_preprocessor_option ("--help", 6);
3282 add_assembler_option ("--help", 6);
3283 add_linker_option ("--help", 6);
3285 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3287 /* translate_options() has turned --target-help into -ftarget-help. */
3288 target_help_flag
= 1;
3290 /* We will be passing a dummy file on to the sub-processes. */
3294 add_preprocessor_option ("--target-help", 13);
3295 add_assembler_option ("--target-help", 13);
3296 add_linker_option ("--target-help", 13);
3298 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3300 pass_exit_codes
= 1;
3303 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3304 print_search_dirs
= 1;
3305 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3306 print_file_name
= "libgcc.a";
3307 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3308 print_file_name
= argv
[i
] + 17;
3309 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3310 print_prog_name
= argv
[i
] + 17;
3311 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3312 print_multi_lib
= 1;
3313 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3314 print_multi_directory
= 1;
3315 else if (! strncmp (argv
[i
], "-Wa,", 4))
3318 /* Pass the rest of this option to the assembler. */
3320 /* Split the argument at commas. */
3322 for (j
= 4; argv
[i
][j
]; j
++)
3323 if (argv
[i
][j
] == ',')
3325 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3329 /* Record the part after the last comma. */
3330 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3332 else if (! strncmp (argv
[i
], "-Wp,", 4))
3335 /* Pass the rest of this option to the preprocessor. */
3337 /* Split the argument at commas. */
3339 for (j
= 4; argv
[i
][j
]; j
++)
3340 if (argv
[i
][j
] == ',')
3342 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3346 /* Record the part after the last comma. */
3347 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3349 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3350 /* The +e options to the C++ front-end. */
3352 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3355 /* Split the argument at commas. */
3356 for (j
= 3; argv
[i
][j
]; j
++)
3357 n_infiles
+= (argv
[i
][j
] == ',');
3359 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3362 fatal ("argument to `-Xlinker' is missing");
3367 else if (strcmp (argv
[i
], "-l") == 0)
3370 fatal ("argument to `-l' is missing");
3375 else if (strncmp (argv
[i
], "-l", 2) == 0)
3377 else if (strcmp (argv
[i
], "-save-temps") == 0)
3379 save_temps_flag
= 1;
3382 else if (strcmp (argv
[i
], "-specs") == 0)
3384 struct user_specs
*user
= (struct user_specs
*)
3385 xmalloc (sizeof (struct user_specs
));
3387 fatal ("argument to `-specs' is missing");
3389 user
->next
= (struct user_specs
*) 0;
3390 user
->filename
= argv
[i
];
3391 if (user_specs_tail
)
3392 user_specs_tail
->next
= user
;
3394 user_specs_head
= user
;
3395 user_specs_tail
= user
;
3397 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3399 struct user_specs
*user
= (struct user_specs
*)
3400 xmalloc (sizeof (struct user_specs
));
3401 if (strlen (argv
[i
]) == 7)
3402 fatal ("argument to `-specs=' is missing");
3404 user
->next
= (struct user_specs
*) 0;
3405 user
->filename
= argv
[i
] + 7;
3406 if (user_specs_tail
)
3407 user_specs_tail
->next
= user
;
3409 user_specs_head
= user
;
3410 user_specs_tail
= user
;
3412 else if (strcmp (argv
[i
], "-time") == 0)
3414 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3416 const char *p
= &argv
[i
][1];
3423 if (p
[1] == 0 && i
+ 1 == argc
)
3424 fatal ("argument to `-b' is missing");
3426 spec_machine
= argv
[++i
];
3428 spec_machine
= p
+ 1;
3430 warn_std_ptr
= &warn_std
;
3438 if (p
[1] == 0 && i
+ 1 == argc
)
3439 fatal ("argument to `-B' is missing");
3445 len
= strlen (value
);
3447 /* Catch the case where the user has forgotten to append a
3448 directory separator to the path. Note, they may be using
3449 -B to add an executable name prefix, eg "i386-elf-", in
3450 order to distinguish between multiple installations of
3451 GCC in the same directory. Hence we must check to see
3452 if appending a directory separator actually makes a
3453 valid directory name. */
3454 if (! IS_DIR_SEPARATOR (value
[len
- 1])
3455 && is_directory (value
, "", 0))
3457 char *tmp
= xmalloc (len
+ 2);
3458 strcpy (tmp
, value
);
3459 tmp
[len
] = DIR_SEPARATOR
;
3464 /* As a kludge, if the arg is "[foo/]stageN/", just
3465 add "[foo/]include" to the include prefix. */
3468 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3469 && strncmp (value
+ len
- 7, "stage", 5) == 0
3470 && ISDIGIT (value
[len
- 2])
3471 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3474 add_prefix (&include_prefixes
, "include", NULL
,
3475 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3478 char * string
= xmalloc (len
+ 1);
3480 strncpy (string
, value
, len
- 7);
3481 strcpy (string
+ len
- 7, "include");
3482 add_prefix (&include_prefixes
, string
, NULL
,
3483 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3487 add_prefix (&exec_prefixes
, value
, NULL
,
3488 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3489 add_prefix (&startfile_prefixes
, value
, NULL
,
3490 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3491 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3492 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3497 case 'v': /* Print our subcommands and print versions. */
3499 /* If they do anything other than exactly `-v', don't set
3500 verbose_flag; rather, continue on to give the error. */
3508 if (p
[1] == 0 && i
+ 1 == argc
)
3509 fatal ("argument to `-V' is missing");
3511 spec_version
= argv
[++i
];
3513 spec_version
= p
+ 1;
3514 compiler_version
= spec_version
;
3515 warn_std_ptr
= &warn_std
;
3517 /* Validate the version number. Use the same checks
3518 done when inserting it into a spec.
3520 The format of the version string is
3521 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3523 const char *v
= compiler_version
;
3525 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3526 while (! ISDIGIT (*v
))
3529 if (v
> compiler_version
&& v
[-1] != '-')
3530 fatal ("invalid version number format");
3532 /* Set V after the first period. */
3533 while (ISDIGIT (*v
))
3537 fatal ("invalid version number format");
3540 while (ISDIGIT (*v
))
3543 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3544 fatal ("invalid version number format");
3560 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3565 /* Forward scan, just in case -S or -c is specified
3572 if (argv
[j
][0] == '-')
3574 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3580 else if ((skip
= SWITCH_TAKES_ARG (argv
[j
][1])))
3581 j
+= skip
- (argv
[j
][2] != 0);
3582 else if ((skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1)))
3589 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3591 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3593 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3600 #ifdef MODIFY_TARGET_NAME
3601 is_modify_target_name
= 0;
3604 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3605 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3608 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3609 + strlen (spec_machine
));
3612 int made_addition
= 0;
3614 is_modify_target_name
= 1;
3615 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3617 if (modify_target
[j
].add_del
== DELETE
3618 && (! strncmp (q
, modify_target
[j
].str
,
3619 strlen (modify_target
[j
].str
))))
3620 p
+= strlen (modify_target
[j
].str
);
3621 else if (modify_target
[j
].add_del
== ADD
3622 && ! made_addition
&& *p
== '-')
3624 for (r
= modify_target
[j
].str
; *r
!= 0; )
3632 spec_machine
= new_name
;
3635 if (is_modify_target_name
)
3641 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3642 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3643 else if (WORD_SWITCH_TAKES_ARG (p
))
3644 i
+= WORD_SWITCH_TAKES_ARG (p
);
3654 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3655 fatal ("cannot specify -o with -c or -S and multiple compilations");
3657 /* Set up the search paths before we go looking for config files. */
3659 /* These come before the md prefixes so that we will find gcc's subcommands
3660 (such as cpp) rather than those of the host system. */
3661 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3662 as well as trying the machine and the version. */
3664 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3665 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3666 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3667 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3668 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3669 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3672 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3673 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3674 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3675 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3677 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3678 dir_separator_str
, NULL
);
3680 /* If tooldir is relative, base it on exec_prefixes. A relative
3681 tooldir lets us move the installed tree as a unit.
3683 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3684 directories, so that we can search both the user specified directory
3685 and the standard place. */
3687 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3689 if (gcc_exec_prefix
)
3691 char *gcc_exec_tooldir_prefix
3692 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3693 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3695 add_prefix (&exec_prefixes
,
3696 concat (gcc_exec_tooldir_prefix
, "bin",
3697 dir_separator_str
, NULL
),
3698 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3699 add_prefix (&startfile_prefixes
,
3700 concat (gcc_exec_tooldir_prefix
, "lib",
3701 dir_separator_str
, NULL
),
3702 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3705 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3706 dir_separator_str
, spec_version
,
3707 dir_separator_str
, tooldir_prefix
, NULL
);
3710 add_prefix (&exec_prefixes
,
3711 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3712 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3713 add_prefix (&startfile_prefixes
,
3714 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3715 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3717 /* More prefixes are enabled in main, after we read the specs file
3718 and determine whether this is cross-compilation or not. */
3720 /* Then create the space for the vectors and scan again. */
3722 switches
= ((struct switchstr
*)
3723 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3724 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3727 last_language_n_infiles
= -1;
3729 /* This, time, copy the text of each switch and store a pointer
3730 to the copy in the vector of switches.
3731 Store all the infiles in their vector. */
3733 for (i
= 1; i
< argc
; i
++)
3735 /* Just skip the switches that were handled by the preceding loop. */
3736 #ifdef MODIFY_TARGET_NAME
3737 is_modify_target_name
= 0;
3739 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3740 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3741 is_modify_target_name
= 1;
3743 if (is_modify_target_name
)
3747 if (! strncmp (argv
[i
], "-Wa,", 4))
3749 else if (! strncmp (argv
[i
], "-Wp,", 4))
3751 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3753 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3755 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3757 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3759 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3761 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3763 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3765 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3767 /* Create a dummy input file, so that we can pass --target-help on to
3768 the various sub-processes. */
3769 infiles
[n_infiles
].language
= "c";
3770 infiles
[n_infiles
++].name
= "target-dummy";
3772 /* Preserve the --target-help switch so that it can be caught by
3773 the cc1 spec string. */
3774 switches
[n_switches
].part1
= "--target-help";
3775 switches
[n_switches
].args
= 0;
3776 switches
[n_switches
].live_cond
= SWITCH_OK
;
3777 switches
[n_switches
].validated
= 0;
3781 else if (strcmp (argv
[i
], "-fhelp") == 0)
3785 /* Create a dummy input file, so that we can pass --help on to
3786 the various sub-processes. */
3787 infiles
[n_infiles
].language
= "c";
3788 infiles
[n_infiles
++].name
= "help-dummy";
3790 /* Preserve the --help switch so that it can be caught by the
3792 switches
[n_switches
].part1
= "--help";
3793 switches
[n_switches
].args
= 0;
3794 switches
[n_switches
].live_cond
= SWITCH_OK
;
3795 switches
[n_switches
].validated
= 0;
3800 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3802 /* Compensate for the +e options to the C++ front-end;
3803 they're there simply for cfront call-compatibility. We do
3804 some magic in default_compilers to pass them down properly.
3805 Note we deliberately start at the `+' here, to avoid passing
3806 -e0 or -e1 down into the linker. */
3807 switches
[n_switches
].part1
= &argv
[i
][0];
3808 switches
[n_switches
].args
= 0;
3809 switches
[n_switches
].live_cond
= SWITCH_OK
;
3810 switches
[n_switches
].validated
= 0;
3813 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3816 /* Split the argument at commas. */
3818 for (j
= 4; argv
[i
][j
]; j
++)
3819 if (argv
[i
][j
] == ',')
3821 infiles
[n_infiles
].language
= "*";
3822 infiles
[n_infiles
++].name
3823 = save_string (argv
[i
] + prev
, j
- prev
);
3826 /* Record the part after the last comma. */
3827 infiles
[n_infiles
].language
= "*";
3828 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3830 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3832 infiles
[n_infiles
].language
= "*";
3833 infiles
[n_infiles
++].name
= argv
[++i
];
3835 else if (strcmp (argv
[i
], "-l") == 0)
3836 { /* POSIX allows separation of -l and the lib arg;
3837 canonicalize by concatenating -l with its arg */
3838 infiles
[n_infiles
].language
= "*";
3839 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3841 else if (strncmp (argv
[i
], "-l", 2) == 0)
3843 infiles
[n_infiles
].language
= "*";
3844 infiles
[n_infiles
++].name
= argv
[i
];
3846 else if (strcmp (argv
[i
], "-specs") == 0)
3848 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3850 else if (strcmp (argv
[i
], "-time") == 0)
3852 else if ((save_temps_flag
|| report_times
)
3853 && strcmp (argv
[i
], "-pipe") == 0)
3855 /* -save-temps overrides -pipe, so that temp files are produced */
3856 if (save_temps_flag
)
3857 error ("Warning: -pipe ignored because -save-temps specified");
3858 /* -time overrides -pipe because we can't get correct stats when
3859 multiple children are running at once. */
3860 else if (report_times
)
3861 error ("Warning: -pipe ignored because -time specified");
3863 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3865 const char *p
= &argv
[i
][1];
3870 if (p
[1] == 0 && i
+ 1 == argc
)
3871 fatal ("argument to `-x' is missing");
3873 spec_lang
= argv
[++i
];
3876 if (! strcmp (spec_lang
, "none"))
3877 /* Suppress the warning if -xnone comes after the last input
3878 file, because alternate command interfaces like g++ might
3879 find it useful to place -xnone after each input file. */
3882 last_language_n_infiles
= n_infiles
;
3885 switches
[n_switches
].part1
= p
;
3886 /* Deal with option arguments in separate argv elements. */
3887 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3888 || WORD_SWITCH_TAKES_ARG (p
))
3891 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3895 /* Count only the option arguments in separate argv elements. */
3896 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3898 if (i
+ n_args
>= argc
)
3899 fatal ("argument to `-%s' is missing", p
);
3900 switches
[n_switches
].args
3901 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3903 switches
[n_switches
].args
[j
++] = argv
[++i
];
3904 /* Null-terminate the vector. */
3905 switches
[n_switches
].args
[j
] = 0;
3907 else if (strchr (switches_need_spaces
, c
))
3909 /* On some systems, ld cannot handle some options without
3910 a space. So split the option from its argument. */
3911 char *part1
= (char *) xmalloc (2);
3915 switches
[n_switches
].part1
= part1
;
3916 switches
[n_switches
].args
3917 = (const char **) xmalloc (2 * sizeof (const char *));
3918 switches
[n_switches
].args
[0] = xstrdup (p
+1);
3919 switches
[n_switches
].args
[1] = 0;
3922 switches
[n_switches
].args
= 0;
3924 switches
[n_switches
].live_cond
= SWITCH_OK
;
3925 switches
[n_switches
].validated
= 0;
3926 switches
[n_switches
].ordering
= 0;
3927 /* These are always valid, since gcc.c itself understands it. */
3928 if (!strcmp (p
, "save-temps")
3929 || !strcmp (p
, "static-libgcc")
3930 || !strcmp (p
, "shared-libgcc"))
3931 switches
[n_switches
].validated
= 1;
3934 char ch
= switches
[n_switches
].part1
[0];
3935 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3936 switches
[n_switches
].validated
= 1;
3942 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3943 argv
[i
] = convert_filename (argv
[i
], 0);
3946 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
3948 perror_with_name (argv
[i
]);
3953 infiles
[n_infiles
].language
= spec_lang
;
3954 infiles
[n_infiles
++].name
= argv
[i
];
3959 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3960 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3962 switches
[n_switches
].part1
= 0;
3963 infiles
[n_infiles
].name
= 0;
3966 /* Process a spec string, accumulating and running commands. */
3968 /* These variables describe the input file name.
3969 input_file_number is the index on outfiles of this file,
3970 so that the output file name can be stored for later use by %o.
3971 input_basename is the start of the part of the input file
3972 sans all directory names, and basename_length is the number
3973 of characters starting there excluding the suffix .c or whatever. */
3975 const char *input_filename
;
3976 static int input_file_number
;
3977 size_t input_filename_length
;
3978 static int basename_length
;
3979 static int suffixed_basename_length
;
3980 static const char *input_basename
;
3981 static const char *input_suffix
;
3983 /* The compiler used to process the current input file. */
3984 static struct compiler
*input_file_compiler
;
3986 /* These are variables used within do_spec and do_spec_1. */
3988 /* Nonzero if an arg has been started and not yet terminated
3989 (with space, tab or newline). */
3990 static int arg_going
;
3992 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3993 is a temporary file name. */
3994 static int delete_this_arg
;
3996 /* Nonzero means %w has been seen; the next arg to be terminated
3997 is the output file name of this compilation. */
3998 static int this_is_output_file
;
4000 /* Nonzero means %s has been seen; the next arg to be terminated
4001 is the name of a library file and we should try the standard
4002 search dirs for it. */
4003 static int this_is_library_file
;
4005 /* Nonzero means that the input of this command is coming from a pipe. */
4006 static int input_from_pipe
;
4008 /* Nonnull means substitute this for any suffix when outputting a switches
4010 static const char *suffix_subst
;
4012 /* Process the spec SPEC and run the commands specified therein.
4013 Returns 0 if the spec is successfully processed; -1 if failed. */
4023 delete_this_arg
= 0;
4024 this_is_output_file
= 0;
4025 this_is_library_file
= 0;
4026 input_from_pipe
= 0;
4027 suffix_subst
= NULL
;
4029 value
= do_spec_1 (spec
, 0, NULL
);
4031 /* Force out any unfinished command.
4032 If -pipe, this forces out the last command if it ended in `|'. */
4035 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4038 if (argbuf_index
> 0)
4045 /* Process the sub-spec SPEC as a portion of a larger spec.
4046 This is like processing a whole spec except that we do
4047 not initialize at the beginning and we do not supply a
4048 newline by default at the end.
4049 INSWITCH nonzero means don't process %-sequences in SPEC;
4050 in this case, % is treated as an ordinary character.
4051 This is used while substituting switches.
4052 INSWITCH nonzero also causes SPC not to terminate an argument.
4054 Value is zero unless a line was finished
4055 and the command on that line reported an error. */
4058 do_spec_1 (spec
, inswitch
, soft_matched_part
)
4061 const char *soft_matched_part
;
4063 const char *p
= spec
;
4070 /* If substituting a switch, treat all chars like letters.
4071 Otherwise, NL, SPC, TAB and % are special. */
4072 switch (inswitch
? 'a' : c
)
4075 /* End of line: finish any pending argument,
4076 then run the pending command if one has been started. */
4079 obstack_1grow (&obstack
, 0);
4080 string
= obstack_finish (&obstack
);
4081 if (this_is_library_file
)
4082 string
= find_file (string
);
4083 store_arg (string
, delete_this_arg
, this_is_output_file
);
4084 if (this_is_output_file
)
4085 outfiles
[input_file_number
] = string
;
4089 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4091 for (i
= 0; i
< n_switches
; i
++)
4092 if (!strcmp (switches
[i
].part1
, "pipe"))
4095 /* A `|' before the newline means use a pipe here,
4096 but only if -pipe was specified.
4097 Otherwise, execute now and don't pass the `|' as an arg. */
4100 input_from_pipe
= 1;
4101 switches
[i
].validated
= 1;
4108 if (argbuf_index
> 0)
4114 /* Reinitialize for a new command, and for a new argument. */
4117 delete_this_arg
= 0;
4118 this_is_output_file
= 0;
4119 this_is_library_file
= 0;
4120 input_from_pipe
= 0;
4124 /* End any pending argument. */
4127 obstack_1grow (&obstack
, 0);
4128 string
= obstack_finish (&obstack
);
4129 if (this_is_library_file
)
4130 string
= find_file (string
);
4131 store_arg (string
, delete_this_arg
, this_is_output_file
);
4132 if (this_is_output_file
)
4133 outfiles
[input_file_number
] = string
;
4137 obstack_1grow (&obstack
, c
);
4143 /* Space or tab ends an argument if one is pending. */
4146 obstack_1grow (&obstack
, 0);
4147 string
= obstack_finish (&obstack
);
4148 if (this_is_library_file
)
4149 string
= find_file (string
);
4150 store_arg (string
, delete_this_arg
, this_is_output_file
);
4151 if (this_is_output_file
)
4152 outfiles
[input_file_number
] = string
;
4154 /* Reinitialize for a new argument. */
4156 delete_this_arg
= 0;
4157 this_is_output_file
= 0;
4158 this_is_library_file
= 0;
4165 fatal ("Invalid specification! Bug in cc.");
4168 obstack_grow (&obstack
, input_basename
, basename_length
);
4173 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4178 delete_this_arg
= 2;
4181 /* Dump out the directories specified with LIBRARY_PATH,
4182 followed by the absolute directories
4183 that we search for startfiles. */
4186 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4187 size_t bufsize
= 100;
4188 char *buffer
= (char *) xmalloc (bufsize
);
4191 for (; pl
; pl
= pl
->next
)
4193 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4194 /* Used on systems which record the specified -L dirs
4195 and use them to search for dynamic linking. */
4196 /* Relative directories always come from -B,
4197 and it is better not to use them for searching
4198 at run time. In particular, stage1 loses. */
4199 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4202 /* Try subdirectory if there is one. */
4203 if (multilib_dir
!= NULL
)
4207 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4209 bufsize
= (strlen (pl
->prefix
)
4210 + strlen (machine_suffix
)) * 2 + 1;
4211 buffer
= (char *) xrealloc (buffer
, bufsize
);
4212 strcpy (buffer
, pl
->prefix
);
4213 strcat (buffer
, machine_suffix
);
4214 if (is_directory (buffer
, multilib_dir
, 1))
4216 do_spec_1 ("-L", 0, NULL
);
4217 #ifdef SPACE_AFTER_L_OPTION
4218 do_spec_1 (" ", 0, NULL
);
4220 do_spec_1 (buffer
, 1, NULL
);
4221 do_spec_1 (multilib_dir
, 1, NULL
);
4222 /* Make this a separate argument. */
4223 do_spec_1 (" ", 0, NULL
);
4226 if (!pl
->require_machine_suffix
)
4228 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4230 do_spec_1 ("-L", 0, NULL
);
4231 #ifdef SPACE_AFTER_L_OPTION
4232 do_spec_1 (" ", 0, NULL
);
4234 do_spec_1 (pl
->prefix
, 1, NULL
);
4235 do_spec_1 (multilib_dir
, 1, NULL
);
4236 /* Make this a separate argument. */
4237 do_spec_1 (" ", 0, NULL
);
4243 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4245 do_spec_1 ("-L", 0, NULL
);
4246 #ifdef SPACE_AFTER_L_OPTION
4247 do_spec_1 (" ", 0, NULL
);
4249 do_spec_1 (pl
->prefix
, 1, NULL
);
4250 /* Remove slash from machine_suffix. */
4251 if (strlen (machine_suffix
) >= bufsize
)
4252 bufsize
= strlen (machine_suffix
) * 2 + 1;
4253 buffer
= (char *) xrealloc (buffer
, bufsize
);
4254 strcpy (buffer
, machine_suffix
);
4255 idx
= strlen (buffer
);
4256 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4257 buffer
[idx
- 1] = 0;
4258 do_spec_1 (buffer
, 1, NULL
);
4259 /* Make this a separate argument. */
4260 do_spec_1 (" ", 0, NULL
);
4263 if (!pl
->require_machine_suffix
)
4265 if (is_directory (pl
->prefix
, "", 1))
4267 do_spec_1 ("-L", 0, NULL
);
4268 #ifdef SPACE_AFTER_L_OPTION
4269 do_spec_1 (" ", 0, NULL
);
4271 /* Remove slash from pl->prefix. */
4272 if (strlen (pl
->prefix
) >= bufsize
)
4273 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4274 buffer
= (char *) xrealloc (buffer
, bufsize
);
4275 strcpy (buffer
, pl
->prefix
);
4276 idx
= strlen (buffer
);
4277 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4278 buffer
[idx
- 1] = 0;
4279 do_spec_1 (buffer
, 1, NULL
);
4280 /* Make this a separate argument. */
4281 do_spec_1 (" ", 0, NULL
);
4290 /* %efoo means report an error with `foo' as error message
4291 and don't execute any more commands for this file. */
4295 while (*p
!= 0 && *p
!= '\n')
4297 buf
= (char *) alloca (p
- q
+ 1);
4298 strncpy (buf
, q
, p
- q
);
4305 /* %nfoo means report an notice with `foo' on stderr. */
4309 while (*p
!= 0 && *p
!= '\n')
4311 buf
= (char *) alloca (p
- q
+ 1);
4312 strncpy (buf
, q
, p
- q
);
4314 notice ("%s\n", buf
);
4324 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4325 and it is not a directory, and it is writable, use it.
4326 Otherwise, fall through and treat this like any other
4329 if ((!save_temps_flag
)
4330 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4331 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4333 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4334 strlen (HOST_BIT_BUCKET
));
4335 delete_this_arg
= 0;
4343 if (save_temps_flag
)
4345 obstack_grow (&obstack
, input_basename
, basename_length
);
4346 delete_this_arg
= 0;
4350 struct temp_name
*t
;
4352 const char *suffix
= p
;
4353 char *saved_suffix
= NULL
;
4355 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4357 suffix_length
= p
- suffix
;
4358 if (p
[0] == '%' && p
[1] == 'O')
4361 /* We don't support extra suffix characters after %O. */
4362 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4364 if (suffix_length
== 0)
4365 suffix
= TARGET_OBJECT_SUFFIX
;
4369 = (char *) xmalloc (suffix_length
4370 + strlen (TARGET_OBJECT_SUFFIX
));
4371 strncpy (saved_suffix
, suffix
, suffix_length
);
4372 strcpy (saved_suffix
+ suffix_length
,
4373 TARGET_OBJECT_SUFFIX
);
4375 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4378 /* See if we already have an association of %g/%u/%U and
4380 for (t
= temp_names
; t
; t
= t
->next
)
4381 if (t
->length
== suffix_length
4382 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4383 && t
->unique
== (c
!= 'g'))
4386 /* Make a new association if needed. %u and %j
4388 if (t
== 0 || c
== 'u' || c
== 'j')
4392 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4393 t
->next
= temp_names
;
4396 t
->length
= suffix_length
;
4399 t
->suffix
= saved_suffix
;
4400 saved_suffix
= NULL
;
4403 t
->suffix
= save_string (suffix
, suffix_length
);
4404 t
->unique
= (c
!= 'g');
4405 temp_filename
= make_temp_file (t
->suffix
);
4406 temp_filename_length
= strlen (temp_filename
);
4407 t
->filename
= temp_filename
;
4408 t
->filename_length
= temp_filename_length
;
4412 free (saved_suffix
);
4414 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4415 delete_this_arg
= 1;
4421 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4427 struct prefix_list
*pl
= include_prefixes
.plist
;
4429 if (gcc_exec_prefix
)
4431 do_spec_1 ("-iprefix", 1, NULL
);
4432 /* Make this a separate argument. */
4433 do_spec_1 (" ", 0, NULL
);
4434 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4435 do_spec_1 (" ", 0, NULL
);
4438 for (; pl
; pl
= pl
->next
)
4440 do_spec_1 ("-isystem", 1, NULL
);
4441 /* Make this a separate argument. */
4442 do_spec_1 (" ", 0, NULL
);
4443 do_spec_1 (pl
->prefix
, 1, NULL
);
4444 do_spec_1 (" ", 0, NULL
);
4451 int max
= n_infiles
;
4452 max
+= lang_specific_extra_outfiles
;
4454 for (i
= 0; i
< max
; i
++)
4456 store_arg (outfiles
[i
], 0, 0);
4461 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4466 this_is_library_file
= 1;
4470 this_is_output_file
= 1;
4475 int cur_index
= argbuf_index
;
4476 /* Handle the {...} following the %W. */
4479 p
= handle_braces (p
+ 1);
4482 /* If any args were output, mark the last one for deletion
4484 if (argbuf_index
!= cur_index
)
4485 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4489 /* %x{OPTION} records OPTION for %X to output. */
4495 /* Skip past the option value and make a copy. */
4500 string
= save_string (p1
+ 1, p
- p1
- 2);
4502 /* See if we already recorded this option. */
4503 for (i
= 0; i
< n_linker_options
; i
++)
4504 if (! strcmp (string
, linker_options
[i
]))
4510 /* This option is new; add it. */
4511 add_linker_option (string
, strlen (string
));
4515 /* Dump out the options accumulated previously using %x. */
4517 for (i
= 0; i
< n_linker_options
; i
++)
4519 do_spec_1 (linker_options
[i
], 1, NULL
);
4520 /* Make each accumulated option a separate argument. */
4521 do_spec_1 (" ", 0, NULL
);
4525 /* Dump out the options accumulated previously using -Wa,. */
4527 for (i
= 0; i
< n_assembler_options
; i
++)
4529 do_spec_1 (assembler_options
[i
], 1, NULL
);
4530 /* Make each accumulated option a separate argument. */
4531 do_spec_1 (" ", 0, NULL
);
4535 /* Dump out the options accumulated previously using -Wp,. */
4537 for (i
= 0; i
< n_preprocessor_options
; i
++)
4539 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4540 /* Make each accumulated option a separate argument. */
4541 do_spec_1 (" ", 0, NULL
);
4545 /* Here are digits and numbers that just process
4546 a certain constant string as a spec. */
4549 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4555 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4561 value
= do_spec_1 (asm_spec
, 0, NULL
);
4567 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4573 value
= do_spec_1 (signed_char_spec
, 0, NULL
);
4580 const char *const spec
4581 = (input_file_compiler
->cpp_spec
4582 ? input_file_compiler
->cpp_spec
4584 value
= do_spec_1 (spec
, 0, NULL
);
4591 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4597 value
= do_spec_1 (link_spec
, 0, NULL
);
4603 value
= do_spec_1 (lib_spec
, 0, NULL
);
4609 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4615 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4621 len
= strlen (multilib_dir
);
4622 obstack_blank (&obstack
, len
+ 1);
4623 p
= obstack_next_free (&obstack
) - (len
+ 1);
4626 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4627 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4633 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4637 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4641 if (! strncmp (y
, "-D", 2))
4642 /* Copy the whole option. */
4643 while (*y
&& *y
!= ' ' && *y
!= '\t')
4645 else if (*y
== ' ' || *y
== '\t')
4646 /* Copy whitespace to the result. */
4648 /* Don't copy other options. */
4655 value
= do_spec_1 (buf
, 0, NULL
);
4663 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4667 /* Copy all of CPP_PREDEFINES into BUF,
4668 but force them all into the reserved name space if they
4669 aren't already there. The reserved name space is all
4670 identifiers beginning with two underscores or with one
4671 underscore and a capital letter. We do the forcing by
4672 adding up to two underscores to the beginning and end
4673 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4678 if (! strncmp (y
, "-D", 2))
4687 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4689 /* Stick __ at front of macro name. */
4693 /* Arrange to stick __ at the end as well. */
4697 /* Copy the macro name. */
4698 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4711 /* Copy the value given, if any. */
4712 while (*y
&& *y
!= ' ' && *y
!= '\t')
4715 else if (*y
== ' ' || *y
== '\t')
4716 /* Copy whitespace to the result. */
4718 /* Don't copy -A options */
4724 /* Copy all of CPP_PREDEFINES into BUF,
4725 but put __ after every -D. */
4729 if (! strncmp (y
, "-D", 2))
4735 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4737 /* Stick -D__ at front of macro name. */
4744 /* Copy the macro name. */
4745 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4748 /* Copy the value given, if any. */
4749 while (*y
&& *y
!= ' ' && *y
!= '\t')
4754 /* Do not copy this macro - we have just done it before */
4755 while (*y
&& *y
!= ' ' && *y
!= '\t')
4759 else if (*y
== ' ' || *y
== '\t')
4760 /* Copy whitespace to the result. */
4762 /* Don't copy -A options. */
4768 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4772 if (! strncmp (y
, "-A", 2))
4773 /* Copy the whole option. */
4774 while (*y
&& *y
!= ' ' && *y
!= '\t')
4776 else if (*y
== ' ' || *y
== '\t')
4777 /* Copy whitespace to the result. */
4779 /* Don't copy other options. */
4786 value
= do_spec_1 (buf
, 0, NULL
);
4793 value
= do_spec_1 (startfile_spec
, 0, NULL
);
4798 /* Here we define characters other than letters and digits. */
4801 p
= handle_braces (p
);
4807 obstack_1grow (&obstack
, '%');
4814 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
4816 suffix_subst
= save_string (p
- 1, len
+ 1);
4822 if (soft_matched_part
)
4824 do_spec_1 (soft_matched_part
, 1, NULL
);
4825 do_spec_1 (" ", 0, NULL
);
4828 /* Catch the case where a spec string contains something like
4829 '%{foo:%*}'. ie there is no * in the pattern on the left
4830 hand side of the :. */
4831 error ("Spec failure: '%%*' has not been initialised by pattern match");
4834 /* Process a string found as the value of a spec given by name.
4835 This feature allows individual machine descriptions
4836 to add and use their own specs.
4837 %[...] modifies -D options the way %P does;
4838 %(...) uses the spec unmodified. */
4840 error ("Warning: use of obsolete %%[ operator in specs");
4843 const char *name
= p
;
4844 struct spec_list
*sl
;
4847 /* The string after the S/P is the name of a spec that is to be
4849 while (*p
&& *p
!= ')' && *p
!= ']')
4852 /* See if it's in the list. */
4853 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4854 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4856 name
= *(sl
->ptr_spec
);
4858 notice ("Processing spec %c%s%c, which is '%s'\n",
4859 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4868 value
= do_spec_1 (name
, 0, NULL
);
4874 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4876 const char *y
= name
;
4879 /* Copy all of NAME into BUF, but put __ after
4880 every -D and at the end of each arg. */
4883 if (! strncmp (y
, "-D", 2))
4894 && (*y
== ' ' || *y
== '\t' || *y
== '='
4895 || *y
== '}' || *y
== 0))
4908 value
= do_spec_1 (buf
, 0, NULL
);
4914 /* Discard the closing paren or bracket. */
4922 int c1
= *p
++; /* Select first or second version number. */
4923 const char *v
= compiler_version
;
4925 static const char zeroc
= '0';
4927 /* The format of the version string is
4928 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4930 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4931 while (! ISDIGIT (*v
))
4933 if (v
> compiler_version
&& v
[-1] != '-')
4936 /* If desired, advance to second version number. */
4939 /* Set V after the first period. */
4940 while (ISDIGIT (*v
))
4947 /* If desired, advance to third version number.
4948 But don't complain if it's not present */
4951 /* Set V after the second period. */
4952 while (ISDIGIT (*v
))
4954 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4960 /* Set Q at the next period or at the end. */
4962 while (ISDIGIT (*q
))
4964 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4968 /* Put that part into the command. */
4969 obstack_grow (&obstack
, v
, q
- v
);
4971 /* Default to "0" */
4972 obstack_grow (&obstack
, &zeroc
, 1);
4978 if (input_from_pipe
)
4979 do_spec_1 ("-", 0, NULL
);
4983 error ("Spec failure: Unrecognised spec option '%c'", c
);
4989 /* Backslash: treat next character as ordinary. */
4994 /* Ordinary character: put it into the current argument. */
4995 obstack_1grow (&obstack
, c
);
4999 /* End of string. */
5003 /* Return 0 if we call do_spec_1 and that returns -1. */
5009 const char *filter
, *body
= NULL
, *endbody
= NULL
;
5011 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
5014 int include_blanks
= 1;
5015 int elide_switch
= 0;
5020 /* A '^' after the open-brace means to not give blanks before args. */
5027 /* A `|' after the open-brace means,
5028 if the test fails, output a single minus sign rather than nothing.
5029 This is used in %{|!pipe:...}. */
5036 /* A `<' after the open-brace means that the switch should be
5037 removed from the command-line. */
5043 negate
= suffix
= 0;
5046 /* A `!' after the open-brace negates the condition:
5047 succeed if the specified switch is not present. */
5051 /* A `.' after the open-brace means test against the current suffix. */
5060 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
5062 /* It doesn't make sense to mix elision with other flags. We
5063 could fatal() here, but the standard seems to be to abort. */
5069 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5072 if (*p
== '|' && (pipe_p
|| ordered
))
5077 if (*p
!= '}' && *p
!= '&')
5093 fatal ("Mismatched braces in specs");
5099 body
= p
, endbody
= p
+ 1;
5104 int found
= (input_suffix
!= 0
5105 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5106 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5112 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5115 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5117 /* Substitute all matching switches as separate args. */
5120 for (i
= 0; i
< n_switches
; i
++)
5121 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5122 && check_live_switch (i
, p
- 1 - filter
))
5126 switches
[i
].live_cond
= SWITCH_IGNORE
;
5127 switches
[i
].validated
= 1;
5130 ordered
= 1, switches
[i
].ordering
= 1;
5135 /* Test for presence of the specified switch. */
5139 /* If name specified ends in *, as in {x*:...},
5140 check for %* and handle that case. */
5141 if (p
[-1] == '*' && !negate
)
5144 const char *r
= body
;
5146 /* First see whether we have %*. */
5150 if (*r
== '%' && r
[1] == '*')
5154 /* If we do, handle that case. */
5157 /* Substitute all matching switches as separate args.
5158 But do this by substituting for %*
5159 in the text that follows the colon. */
5161 unsigned hard_match_len
= p
- filter
- 1;
5162 char *string
= save_string (body
, endbody
- body
- 1);
5164 for (i
= 0; i
< n_switches
; i
++)
5165 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5166 && check_live_switch (i
, -1))
5168 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5169 /* Pass any arguments this switch has. */
5170 give_switch (i
, 1, 1);
5171 suffix_subst
= NULL
;
5174 /* We didn't match. Try again. */
5181 /* If name specified ends in *, as in {x*:...},
5182 check for presence of any switch name starting with x. */
5185 for (i
= 0; i
< n_switches
; i
++)
5187 unsigned hard_match_len
= p
- filter
- 1;
5189 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5190 && check_live_switch (i
, hard_match_len
))
5197 /* Otherwise, check for presence of exact name specified. */
5200 for (i
= 0; i
< n_switches
; i
++)
5202 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5203 && switches
[i
].part1
[p
- filter
] == 0
5204 && check_live_switch (i
, -1))
5212 /* If it is as desired (present for %{s...}, absent for %{!s...})
5213 then substitute either the switch or the specified
5214 conditional text. */
5215 if (present
!= negate
)
5219 switches
[i
].live_cond
= SWITCH_IGNORE
;
5220 switches
[i
].validated
= 1;
5222 else if (ordered
|| *p
== '&')
5223 ordered
= 1, switches
[i
].ordering
= 1;
5225 give_switch (i
, 0, include_blanks
);
5227 /* Even if many alternatives are matched, only output once. */
5232 /* Here if a %{|...} conditional fails: output a minus sign,
5233 which means "standard output" or "standard input". */
5234 do_spec_1 ("-", 0, NULL
);
5239 /* We didn't match; try again. */
5246 goto next_ampersand
;
5252 /* Doing this set of switches later preserves their command-line
5253 ordering. This is needed for e.g. -U, -D and -A. */
5254 for (i
= 0; i
< n_switches
; i
++)
5255 if (switches
[i
].ordering
== 1)
5257 switches
[i
].ordering
= 0;
5258 give_switch (i
, 0, include_blanks
);
5261 /* Process the spec just once, regardless of match count. */
5264 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5272 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5273 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5274 spec, or -1 if either exact match or %* is used.
5276 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5277 whose value does not begin with "no-" is obsoleted by the same value
5278 with the "no-", similarly for a switch with the "no-" prefix. */
5281 check_live_switch (switchnum
, prefix_length
)
5285 const char *name
= switches
[switchnum
].part1
;
5288 /* In the common case of {<at-most-one-letter>*}, a negating
5289 switch would always match, so ignore that case. We will just
5290 send the conflicting switches to the compiler phase. */
5291 if (prefix_length
>= 0 && prefix_length
<= 1)
5294 /* If we already processed this switch and determined if it was
5295 live or not, return our past determination. */
5296 if (switches
[switchnum
].live_cond
!= 0)
5297 return switches
[switchnum
].live_cond
> 0;
5299 /* Now search for duplicate in a manner that depends on the name. */
5303 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5304 if (switches
[i
].part1
[0] == 'O')
5306 switches
[switchnum
].validated
= 1;
5307 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5312 case 'W': case 'f': case 'm':
5313 if (! strncmp (name
+ 1, "no-", 3))
5315 /* We have Xno-YYY, search for XYYY. */
5316 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5317 if (switches
[i
].part1
[0] == name
[0]
5318 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5320 switches
[switchnum
].validated
= 1;
5321 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5327 /* We have XYYY, search for Xno-YYY. */
5328 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5329 if (switches
[i
].part1
[0] == name
[0]
5330 && switches
[i
].part1
[1] == 'n'
5331 && switches
[i
].part1
[2] == 'o'
5332 && switches
[i
].part1
[3] == '-'
5333 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5335 switches
[switchnum
].validated
= 1;
5336 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5343 /* Otherwise the switch is live. */
5344 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5348 /* Pass a switch to the current accumulating command
5349 in the same form that we received it.
5350 SWITCHNUM identifies the switch; it is an index into
5351 the vector of switches gcc received, which is `switches'.
5352 This cannot fail since it never finishes a command line.
5354 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5356 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5360 give_switch (switchnum
, omit_first_word
, include_blanks
)
5362 int omit_first_word
;
5365 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5368 if (!omit_first_word
)
5370 do_spec_1 ("-", 0, NULL
);
5371 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5374 if (switches
[switchnum
].args
!= 0)
5377 for (p
= switches
[switchnum
].args
; *p
; p
++)
5379 const char *arg
= *p
;
5382 do_spec_1 (" ", 0, NULL
);
5385 unsigned length
= strlen (arg
);
5388 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5389 if (arg
[length
] == '.')
5391 ((char *)arg
)[length
] = 0;
5395 do_spec_1 (arg
, 1, NULL
);
5397 ((char *)arg
)[length
] = '.';
5398 do_spec_1 (suffix_subst
, 1, NULL
);
5401 do_spec_1 (arg
, 1, NULL
);
5405 do_spec_1 (" ", 0, NULL
);
5406 switches
[switchnum
].validated
= 1;
5409 /* Search for a file named NAME trying various prefixes including the
5410 user's -B prefix and some standard ones.
5411 Return the absolute file name found. If nothing is found, return NAME. */
5419 /* Try multilib_dir if it is defined. */
5420 if (multilib_dir
!= NULL
)
5422 const char *const try = ACONCAT ((multilib_dir
, dir_separator_str
, name
, NULL
));
5424 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5426 /* If we don't find it in the multi library dir, then fall
5427 through and look for it in the normal places. */
5428 if (newname
!= NULL
)
5432 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5433 return newname
? newname
: name
;
5436 /* Determine whether a directory exists. If LINKER, return 0 for
5437 certain fixed names not needed by the linker. If not LINKER, it is
5438 only important to return 0 if the host machine has a small ARG_MAX
5442 is_directory (path1
, path2
, linker
)
5447 int len1
= strlen (path1
);
5448 int len2
= strlen (path2
);
5449 char *path
= (char *) alloca (3 + len1
+ len2
);
5453 #ifndef SMALL_ARG_MAX
5458 /* Construct the path from the two parts. Ensure the string ends with "/.".
5459 The resulting path will be a directory even if the given path is a
5461 memcpy (path
, path1
, len1
);
5462 memcpy (path
+ len1
, path2
, len2
);
5463 cp
= path
+ len1
+ len2
;
5464 if (!IS_DIR_SEPARATOR (cp
[-1]))
5465 *cp
++ = DIR_SEPARATOR
;
5469 /* Exclude directories that the linker is known to search. */
5472 && strcmp (path
, concat (dir_separator_str
, "lib",
5473 dir_separator_str
, ".", NULL
)) == 0)
5475 && strcmp (path
, concat (dir_separator_str
, "usr",
5476 dir_separator_str
, "lib",
5477 dir_separator_str
, ".", NULL
)) == 0)))
5480 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5483 /* Set up the various global variables to indicate that we're processing
5484 the input file named FILENAME. */
5487 set_input (filename
)
5488 const char *filename
;
5492 input_filename
= filename
;
5493 input_filename_length
= strlen (input_filename
);
5495 input_basename
= input_filename
;
5496 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5497 /* Skip drive name so 'x:foo' is handled properly. */
5498 if (input_basename
[1] == ':')
5499 input_basename
+= 2;
5501 for (p
= input_basename
; *p
; p
++)
5502 if (IS_DIR_SEPARATOR (*p
))
5503 input_basename
= p
+ 1;
5505 /* Find a suffix starting with the last period,
5506 and set basename_length to exclude that suffix. */
5507 basename_length
= strlen (input_basename
);
5508 suffixed_basename_length
= basename_length
;
5509 p
= input_basename
+ basename_length
;
5510 while (p
!= input_basename
&& *p
!= '.')
5512 if (*p
== '.' && p
!= input_basename
)
5514 basename_length
= p
- input_basename
;
5515 input_suffix
= p
+ 1;
5521 /* On fatal signals, delete all the temporary files. */
5524 fatal_error (signum
)
5527 signal (signum
, SIG_DFL
);
5528 delete_failure_queue ();
5529 delete_temp_files ();
5530 /* Get the same signal again, this time not handled,
5531 so its normal effect occurs. */
5532 kill (getpid (), signum
);
5535 extern int main
PARAMS ((int, const char *const *));
5540 const char *const *argv
;
5544 int linker_was_run
= 0;
5545 char *explicit_link_files
;
5548 struct user_specs
*uptr
;
5550 p
= argv
[0] + strlen (argv
[0]);
5551 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5555 xmalloc_set_program_name (programname
);
5557 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5558 /* Perform host dependant initialization when needed. */
5559 GCC_DRIVER_HOST_INITIALIZATION
;
5562 /* LC_CTYPE determines the character set used by the terminal so it has be set
5563 to output messages correctly. */
5565 #ifdef HAVE_LC_MESSAGES
5566 setlocale (LC_CTYPE
, "");
5567 setlocale (LC_MESSAGES
, "");
5569 setlocale (LC_ALL
, "");
5572 (void) bindtextdomain (PACKAGE
, localedir
);
5573 (void) textdomain (PACKAGE
);
5575 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5576 signal (SIGINT
, fatal_error
);
5578 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5579 signal (SIGHUP
, fatal_error
);
5581 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5582 signal (SIGTERM
, fatal_error
);
5584 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5585 signal (SIGPIPE
, fatal_error
);
5588 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5589 receive the signal. A different setting is inheritable */
5590 signal (SIGCHLD
, SIG_DFL
);
5594 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5596 obstack_init (&obstack
);
5598 /* Build multilib_select, et. al from the separate lines that make up each
5599 multilib selection. */
5601 const char *const *q
= multilib_raw
;
5604 obstack_init (&multilib_obstack
);
5605 while ((p
= *q
++) != (char *) 0)
5606 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5608 obstack_1grow (&multilib_obstack
, 0);
5609 multilib_select
= obstack_finish (&multilib_obstack
);
5611 q
= multilib_matches_raw
;
5612 while ((p
= *q
++) != (char *) 0)
5613 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5615 obstack_1grow (&multilib_obstack
, 0);
5616 multilib_matches
= obstack_finish (&multilib_obstack
);
5618 q
= multilib_exclusions_raw
;
5619 while ((p
= *q
++) != (char *) 0)
5620 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5622 obstack_1grow (&multilib_obstack
, 0);
5623 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5626 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5629 obstack_1grow (&multilib_obstack
, ' ');
5630 obstack_grow (&multilib_obstack
,
5631 multilib_defaults_raw
[i
],
5632 strlen (multilib_defaults_raw
[i
]));
5636 obstack_1grow (&multilib_obstack
, 0);
5637 multilib_defaults
= obstack_finish (&multilib_obstack
);
5640 /* Set up to remember the pathname of gcc and any options
5641 needed for collect. We use argv[0] instead of programname because
5642 we need the complete pathname. */
5643 obstack_init (&collect_obstack
);
5644 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5645 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5646 putenv (obstack_finish (&collect_obstack
));
5648 #ifdef INIT_ENVIRONMENT
5649 /* Set up any other necessary machine specific environment variables. */
5650 putenv (INIT_ENVIRONMENT
);
5653 /* Make a table of what switches there are (switches, n_switches).
5654 Make a table of specified input files (infiles, n_infiles).
5655 Decode switches that are handled locally. */
5657 process_command (argc
, argv
);
5662 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5664 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5665 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5668 for (i
= 0; (int) i
< n_switches
; i
++)
5670 const char *const *args
;
5673 obstack_grow (&collect_obstack
, " ", 1);
5676 obstack_grow (&collect_obstack
, "'-", 2);
5677 q
= switches
[i
].part1
;
5678 while ((p
= strchr (q
, '\'')))
5680 obstack_grow (&collect_obstack
, q
, p
- q
);
5681 obstack_grow (&collect_obstack
, "'\\''", 4);
5684 obstack_grow (&collect_obstack
, q
, strlen (q
));
5685 obstack_grow (&collect_obstack
, "'", 1);
5687 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5689 obstack_grow (&collect_obstack
, " '", 2);
5691 while ((p
= strchr (q
, '\'')))
5693 obstack_grow (&collect_obstack
, q
, p
- q
);
5694 obstack_grow (&collect_obstack
, "'\\''", 4);
5697 obstack_grow (&collect_obstack
, q
, strlen (q
));
5698 obstack_grow (&collect_obstack
, "'", 1);
5701 obstack_grow (&collect_obstack
, "\0", 1);
5702 putenv (obstack_finish (&collect_obstack
));
5705 /* Initialize the vector of specs to just the default.
5706 This means one element containing 0s, as a terminator. */
5708 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5709 memcpy ((char *) compilers
, (char *) default_compilers
,
5710 sizeof default_compilers
);
5711 n_compilers
= n_default_compilers
;
5713 /* Read specs from a file if there is one. */
5715 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5716 spec_version
, dir_separator_str
, NULL
);
5717 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5719 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5720 /* Read the specs file unless it is a default one. */
5721 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5722 read_specs (specs_file
, TRUE
);
5726 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5727 for any override of as, ld and libraries. */
5728 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5729 + strlen (just_machine_suffix
)
5730 + sizeof ("specs"));
5732 strcpy (specs_file
, standard_exec_prefix
);
5733 strcat (specs_file
, just_machine_suffix
);
5734 strcat (specs_file
, "specs");
5735 if (access (specs_file
, R_OK
) == 0)
5736 read_specs (specs_file
, TRUE
);
5738 /* If not cross-compiling, look for startfiles in the standard places. */
5739 if (*cross_compile
== '0')
5741 if (*md_exec_prefix
)
5743 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5744 PREFIX_PRIORITY_LAST
, 0, NULL
);
5745 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5746 PREFIX_PRIORITY_LAST
, 0, NULL
);
5749 if (*md_startfile_prefix
)
5750 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5751 PREFIX_PRIORITY_LAST
, 0, NULL
);
5753 if (*md_startfile_prefix_1
)
5754 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5755 PREFIX_PRIORITY_LAST
, 0, NULL
);
5757 /* If standard_startfile_prefix is relative, base it on
5758 standard_exec_prefix. This lets us move the installed tree
5759 as a unit. If GCC_EXEC_PREFIX is defined, base
5760 standard_startfile_prefix on that as well. */
5761 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5762 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5763 PREFIX_PRIORITY_LAST
, 0, NULL
);
5766 if (gcc_exec_prefix
)
5767 add_prefix (&startfile_prefixes
,
5768 concat (gcc_exec_prefix
, machine_suffix
,
5769 standard_startfile_prefix
, NULL
),
5770 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5771 add_prefix (&startfile_prefixes
,
5772 concat (standard_exec_prefix
,
5774 standard_startfile_prefix
, NULL
),
5775 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5778 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5779 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5780 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5781 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5782 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5783 add_prefix (&startfile_prefixes
, "./", NULL
,
5784 PREFIX_PRIORITY_LAST
, 1, NULL
);
5789 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5791 add_prefix (&startfile_prefixes
,
5792 concat (gcc_exec_prefix
, machine_suffix
,
5793 standard_startfile_prefix
, NULL
),
5794 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5797 /* Process any user specified specs in the order given on the command
5799 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5801 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5802 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5805 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5806 if (gcc_exec_prefix
)
5807 gcc_exec_prefix
= concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
5808 spec_version
, dir_separator_str
, NULL
);
5810 /* Now we have the specs.
5811 Set the `valid' bits for switches that match anything in any spec. */
5813 validate_all_switches ();
5815 /* Now that we have the switches and the specs, set
5816 the subdirectory based on the options. */
5817 set_multilib_dir ();
5819 /* Warn about any switches that no pass was interested in. */
5821 for (i
= 0; (int) i
< n_switches
; i
++)
5822 if (! switches
[i
].validated
)
5823 error ("unrecognized option `-%s'", switches
[i
].part1
);
5825 /* Obey some of the options. */
5827 if (print_search_dirs
)
5829 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5830 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5831 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5835 if (print_file_name
)
5837 printf ("%s\n", find_file (print_file_name
));
5841 if (print_prog_name
)
5843 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5844 printf ("%s\n", (newname
? newname
: print_prog_name
));
5848 if (print_multi_lib
)
5850 print_multilib_info ();
5854 if (print_multi_directory
)
5856 if (multilib_dir
== NULL
)
5859 printf ("%s\n", multilib_dir
);
5863 if (target_help_flag
)
5865 /* Print if any target specific options.*/
5867 /* We do not exit here. Instead we have created a fake input file
5868 called 'target-dummy' which needs to be compiled, and we pass this
5869 on to the various sub-processes, along with the --target-help
5873 if (print_help_list
)
5879 printf (_("\nFor bug reporting instructions, please see:\n"));
5880 printf ("%s.\n", GCCBUGURL
);
5885 /* We do not exit here. Instead we have created a fake input file
5886 called 'help-dummy' which needs to be compiled, and we pass this
5887 on the various sub-processes, along with the --help switch. */
5895 notice ("Configured with: %s\n", configuration_arguments
);
5897 #ifdef THREAD_MODEL_SPEC
5898 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5899 but there's no point in doing all this processing just to get
5900 thread_model back. */
5901 obstack_init (&obstack
);
5902 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
5903 obstack_1grow (&obstack
, '\0');
5904 thrmod
= obstack_finish (&obstack
);
5906 thrmod
= thread_model
;
5909 notice ("Thread model: %s\n", thrmod
);
5911 /* compiler_version is truncated at the first space when initialized
5912 from version string, so truncate version_string at the first space
5913 before comparing. */
5914 for (n
= 0; version_string
[n
]; n
++)
5915 if (version_string
[n
] == ' ')
5918 if (! strncmp (version_string
, compiler_version
, n
)
5919 && compiler_version
[n
] == 0)
5920 notice ("gcc version %s\n", version_string
);
5922 notice ("gcc driver version %s executing gcc version %s\n",
5923 version_string
, compiler_version
);
5929 if (n_infiles
== added_libraries
)
5930 fatal ("No input files");
5932 /* Make a place to record the compiler output file names
5933 that correspond to the input files. */
5936 i
+= lang_specific_extra_outfiles
;
5937 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5939 /* Record which files were specified explicitly as link input. */
5941 explicit_link_files
= xcalloc (1, n_infiles
);
5943 for (i
= 0; (int) i
< n_infiles
; i
++)
5945 int this_file_error
= 0;
5947 /* Tell do_spec what to substitute for %i. */
5949 input_file_number
= i
;
5950 set_input (infiles
[i
].name
);
5952 /* Use the same thing in %o, unless cp->spec says otherwise. */
5954 outfiles
[i
] = input_filename
;
5956 /* Figure out which compiler from the file's suffix. */
5959 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
5960 infiles
[i
].language
);
5962 if (input_file_compiler
)
5964 /* Ok, we found an applicable compiler. Run its spec. */
5966 if (input_file_compiler
->spec
[0] == '#')
5968 error ("%s: %s compiler not installed on this system",
5969 input_filename
, &input_file_compiler
->spec
[1]);
5970 this_file_error
= 1;
5974 value
= do_spec (input_file_compiler
->spec
);
5976 this_file_error
= 1;
5980 /* If this file's name does not contain a recognized suffix,
5981 record it as explicit linker input. */
5984 explicit_link_files
[i
] = 1;
5986 /* Clear the delete-on-failure queue, deleting the files in it
5987 if this compilation failed. */
5989 if (this_file_error
)
5991 delete_failure_queue ();
5994 /* If this compilation succeeded, don't delete those files later. */
5995 clear_failure_queue ();
5998 /* Reset the output file name to the first input file name, for use
5999 with %b in LINK_SPEC on a target that prefers not to emit a.out
6002 set_input (infiles
[0].name
);
6004 if (error_count
== 0)
6006 /* Make sure INPUT_FILE_NUMBER points to first available open
6008 input_file_number
= n_infiles
;
6009 if (lang_specific_pre_link ())
6013 /* Run ld to link all the compiler output files. */
6015 if (error_count
== 0)
6017 int tmp
= execution_count
;
6019 /* We'll use ld if we can't find collect2. */
6020 if (! strcmp (linker_name_spec
, "collect2"))
6022 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
6024 linker_name_spec
= "ld";
6026 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
6028 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
6029 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
6031 value
= do_spec (link_command_spec
);
6034 linker_was_run
= (tmp
!= execution_count
);
6037 /* If options said don't run linker,
6038 complain about input files to be given to the linker. */
6040 if (! linker_was_run
&& error_count
== 0)
6041 for (i
= 0; (int) i
< n_infiles
; i
++)
6042 if (explicit_link_files
[i
])
6043 error ("%s: linker input file unused because linking not done",
6046 /* Delete some or all of the temporary files we made. */
6049 delete_failure_queue ();
6050 delete_temp_files ();
6052 if (print_help_list
)
6054 printf (("\nFor bug reporting instructions, please see:\n"));
6055 printf ("%s\n", GCCBUGURL
);
6058 return (signal_count
!= 0 ? 2
6059 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
6063 /* Find the proper compilation spec for the file name NAME,
6064 whose length is LENGTH. LANGUAGE is the specified language,
6065 or 0 if this file is to be passed to the linker. */
6067 static struct compiler
*
6068 lookup_compiler (name
, length
, language
)
6071 const char *language
;
6073 struct compiler
*cp
;
6075 /* If this was specified by the user to be a linker input, indicate that. */
6076 if (language
!= 0 && language
[0] == '*')
6079 /* Otherwise, look for the language, if one is spec'd. */
6082 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6083 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6086 error ("language %s not recognized", language
);
6090 /* Look for a suffix. */
6091 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6093 if (/* The suffix `-' matches only the file name `-'. */
6094 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6095 || (strlen (cp
->suffix
) < length
6096 /* See if the suffix matches the end of NAME. */
6097 && !strcmp (cp
->suffix
,
6098 name
+ length
- strlen (cp
->suffix
))
6103 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6104 /* look again, but case-insensitively this time. */
6106 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6108 if (/* The suffix `-' matches only the file name `-'. */
6109 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6110 || (strlen (cp
->suffix
) < length
6111 /* See if the suffix matches the end of NAME. */
6112 && ((!strcmp (cp
->suffix
,
6113 name
+ length
- strlen (cp
->suffix
))
6114 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6115 && !strcasecmp (cp
->suffix
,
6116 name
+ length
- strlen (cp
->suffix
)))
6122 if (cp
>= compilers
)
6124 if (cp
->spec
[0] != '@')
6125 /* A non-alias entry: return it. */
6128 /* An alias entry maps a suffix to a language.
6129 Search for the language; pass 0 for NAME and LENGTH
6130 to avoid infinite recursion if language not found. */
6131 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6137 save_string (s
, len
)
6141 char *result
= xmalloc (len
+ 1);
6143 memcpy (result
, s
, len
);
6149 pfatal_with_name (name
)
6152 perror_with_name (name
);
6153 delete_temp_files ();
6158 perror_with_name (name
)
6161 error ("%s: %s", name
, xstrerror (errno
));
6165 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6166 const char *errmsg_fmt
;
6167 const char *errmsg_arg
;
6171 int save_errno
= errno
;
6173 /* Space for trailing '\0' is in %s. */
6174 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6175 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6181 pfatal_with_name (errmsg_fmt
);
6184 /* Output an error message and exit */
6189 fatal ("Internal gcc abort.");
6192 /* Output an error message and exit */
6195 fatal
VPARAMS ((const char *msgid
, ...))
6197 VA_OPEN (ap
, msgid
);
6198 VA_FIXEDARG (ap
, const char *, msgid
);
6200 fprintf (stderr
, "%s: ", programname
);
6201 vfprintf (stderr
, _(msgid
), ap
);
6203 fprintf (stderr
, "\n");
6204 delete_temp_files ();
6209 error
VPARAMS ((const char *msgid
, ...))
6211 VA_OPEN (ap
, msgid
);
6212 VA_FIXEDARG (ap
, const char *, msgid
);
6214 fprintf (stderr
, "%s: ", programname
);
6215 vfprintf (stderr
, _(msgid
), ap
);
6218 fprintf (stderr
, "\n");
6222 notice
VPARAMS ((const char *msgid
, ...))
6224 VA_OPEN (ap
, msgid
);
6225 VA_FIXEDARG (ap
, const char *, msgid
);
6227 vfprintf (stderr
, _(msgid
), ap
);
6232 validate_all_switches ()
6234 struct compiler
*comp
;
6237 struct spec_list
*spec
;
6239 for (comp
= compilers
; comp
->spec
; comp
++)
6243 if (c
== '%' && *p
== '{')
6244 /* We have a switch spec. */
6245 validate_switches (p
+ 1);
6248 /* Look through the linked list of specs read from the specs file. */
6249 for (spec
= specs
; spec
; spec
= spec
->next
)
6251 p
= *(spec
->ptr_spec
);
6253 if (c
== '%' && *p
== '{')
6254 /* We have a switch spec. */
6255 validate_switches (p
+ 1);
6258 p
= link_command_spec
;
6260 if (c
== '%' && *p
== '{')
6261 /* We have a switch spec. */
6262 validate_switches (p
+ 1);
6265 /* Look at the switch-name that comes after START
6266 and mark as valid all supplied switches that match it. */
6269 validate_switches (start
)
6272 const char *p
= start
;
6289 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6294 else if (p
[-1] == '*')
6296 /* Mark all matching switches as valid. */
6297 for (i
= 0; i
< n_switches
; i
++)
6298 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6299 switches
[i
].validated
= 1;
6303 /* Mark an exact matching switch as valid. */
6304 for (i
= 0; i
< n_switches
; i
++)
6306 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6307 && switches
[i
].part1
[p
- filter
] == 0)
6308 switches
[i
].validated
= 1;
6312 if (*p
++ == '|' || p
[-1] == '&')
6316 /* Check whether a particular argument was used. The first time we
6317 canonicalize the switches to keep only the ones we care about. */
6327 const char *replace
;
6332 static struct mswitchstr
*mswitches
;
6333 static int n_mswitches
;
6338 struct mswitchstr
*matches
;
6342 /* Break multilib_matches into the component strings of string
6343 and replacement string. */
6344 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6349 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6351 q
= multilib_matches
;
6361 matches
[i
].len
= q
- matches
[i
].str
;
6363 matches
[i
].replace
= ++q
;
6364 while (*q
!= ';' && *q
!= '\0')
6370 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6376 /* Now build a list of the replacement string for switches that we care
6377 about. Make sure we allocate at least one entry. This prevents
6378 xmalloc from calling fatal, and prevents us from re-executing this
6381 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6382 * (n_switches
? n_switches
: 1));
6383 for (i
= 0; i
< n_switches
; i
++)
6385 int xlen
= strlen (switches
[i
].part1
);
6386 for (j
= 0; j
< cnt
; j
++)
6387 if (xlen
== matches
[j
].len
6388 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6390 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6391 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6392 mswitches
[n_mswitches
].replace
= (char *) 0;
6393 mswitches
[n_mswitches
].rep_len
= 0;
6400 for (i
= 0; i
< n_mswitches
; i
++)
6401 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6408 default_arg (p
, len
)
6412 const char *start
, *end
;
6414 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6416 while (*start
== ' ' || *start
== '\t')
6422 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6425 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6435 /* Work out the subdirectory to use based on the options. The format of
6436 multilib_select is a list of elements. Each element is a subdirectory
6437 name followed by a list of options followed by a semicolon. The format
6438 of multilib_exclusions is the same, but without the preceding
6439 directory. First gcc will check the exclusions, if none of the options
6440 beginning with an exclamation point are present, and all of the other
6441 options are present, then we will ignore this completely. Passing
6442 that, gcc will consider each multilib_select in turn using the same
6443 rules for matching the options. If a match is found, that subdirectory
6450 unsigned int this_path_len
;
6451 const char *this_path
, *this_arg
;
6455 p
= multilib_exclusions
;
6458 /* Ignore newlines. */
6465 /* Check the arguments. */
6479 while (*p
!= ' ' && *p
!= ';')
6486 if (*this_arg
!= '!')
6494 ok
= used_arg (this_arg
, p
- this_arg
);
6508 p
= multilib_select
;
6511 /* Ignore newlines. */
6518 /* Get the initial path. */
6526 this_path_len
= p
- this_path
;
6528 /* Check the arguments. */
6543 while (*p
!= ' ' && *p
!= ';')
6550 if (*this_arg
!= '!')
6558 /* If this is a default argument, we can just ignore it.
6559 This is true even if this_arg begins with '!'. Beginning
6560 with '!' does not mean that this argument is necessarily
6561 inappropriate for this library: it merely means that
6562 there is a more specific library which uses this
6563 argument. If this argument is a default, we need not
6564 consider that more specific library. */
6565 if (! default_arg (this_arg
, p
- this_arg
))
6567 ok
= used_arg (this_arg
, p
- this_arg
);
6578 if (this_path_len
!= 1
6579 || this_path
[0] != '.')
6581 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6582 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6583 new_multilib_dir
[this_path_len
] = '\0';
6584 multilib_dir
= new_multilib_dir
;
6593 /* Print out the multiple library subdirectory selection
6594 information. This prints out a series of lines. Each line looks
6595 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6596 required. Only the desired options are printed out, the negative
6597 matches. The options are print without a leading dash. There are
6598 no spaces to make it easy to use the information in the shell.
6599 Each subdirectory is printed only once. This assumes the ordering
6600 generated by the genmultilib script. Also, we leave out ones that match
6604 print_multilib_info ()
6606 const char *p
= multilib_select
;
6607 const char *last_path
= 0, *this_path
;
6609 unsigned int last_path_len
= 0;
6614 /* Ignore newlines. */
6621 /* Get the initial path. */
6630 /* Check for matches with the multilib_exclusions. We don't bother
6631 with the '!' in either list. If any of the exclusion rules match
6632 all of its options with the select rule, we skip it. */
6634 const char *e
= multilib_exclusions
;
6635 const char *this_arg
;
6640 /* Ignore newlines. */
6647 /* Check the arguments. */
6664 while (*e
!= ' ' && *e
!= ';')
6675 int len
= e
- this_arg
;
6682 while (*q
!= ' ' && *q
!= ';')
6689 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6690 default_arg (this_arg
, e
- this_arg
))
6720 /* If this is a duplicate, skip it. */
6721 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6722 && ! strncmp (last_path
, this_path
, last_path_len
));
6724 last_path
= this_path
;
6725 last_path_len
= p
- this_path
;
6728 /* If this directory requires any default arguments, we can skip
6729 it. We will already have printed a directory identical to
6730 this one which does not require that default argument. */
6748 while (*q
!= ' ' && *q
!= ';')
6756 && default_arg (arg
, q
- arg
))
6771 for (p1
= last_path
; p1
< p
; p1
++)
6790 use_arg
= *p
!= '!';
6795 while (*p
!= ' ' && *p
!= ';')
6810 /* If there are extra options, print them now. */
6811 if (multilib_extra
&& *multilib_extra
)
6813 int print_at
= TRUE
;
6816 for (q
= multilib_extra
; *q
!= '\0'; q
++)