1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #define exit __posix_exit
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage
PARAMS ((int, struct rusage
*));
95 /* By default there is no special suffix for executables. */
96 #ifdef EXECUTABLE_SUFFIX
97 #define HAVE_EXECUTABLE_SUFFIX
99 #define EXECUTABLE_SUFFIX ""
102 /* By default, the suffix for object files is ".o". */
104 #define HAVE_OBJECT_SUFFIX
106 #define OBJECT_SUFFIX ".o"
110 /* FIXME: the location independence code for VMS is hairier than this,
111 and hasn't been written. */
117 static char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
119 #define obstack_chunk_alloc xmalloc
120 #define obstack_chunk_free free
122 #ifndef GET_ENV_PATH_LIST
123 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
126 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
127 #ifndef LIBRARY_PATH_ENV
128 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
132 #define kill(p,s) raise(s)
135 /* If a stage of compilation returns an exit status >= 1,
136 compilation of that file ceases. */
138 #define MIN_FATAL_STATUS 1
140 /* Flag saying to pass the greatest exit code returned by a sub-process
141 to the calling program. */
142 static int pass_exit_codes
;
144 /* Definition of string containing the arguments given to configure. */
145 #include "configargs.h"
147 /* Flag saying to print the directories gcc will search through looking for
148 programs, libraries, etc. */
150 static int print_search_dirs
;
152 /* Flag saying to print the full filename of this file
153 as found through our usual search mechanism. */
155 static const char *print_file_name
= NULL
;
157 /* As print_file_name, but search for executable file. */
159 static const char *print_prog_name
= NULL
;
161 /* Flag saying to print the relative path we'd use to
162 find libgcc.a given the current compiler flags. */
164 static int print_multi_directory
;
166 /* Flag saying to print the list of subdirectories and
167 compiler flags used to select them in a standard form. */
169 static int print_multi_lib
;
171 /* Flag saying to print the command line options understood by gcc and its
174 static int print_help_list
;
176 /* Flag indicating whether we should print the command and arguments */
178 static int verbose_flag
;
180 /* Flag indicating to print target specific command line options. */
182 static int target_help_flag
;
184 /* Flag indicating whether we should report subprocess execution times
185 (if this is supported by the system - see pexecute.c). */
187 static int report_times
;
189 /* Nonzero means write "temp" files in source directory
190 and use the source file's name in them, and don't delete them. */
192 static int save_temps_flag
;
194 /* The compiler version. */
196 static const char *compiler_version
;
198 /* The target version specified with -V */
200 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
202 /* The target machine specified with -b. */
204 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
206 /* Nonzero if cross-compiling.
207 When -b is used, the value comes from the `specs' file. */
210 static const char *cross_compile
= "1";
212 static const char *cross_compile
= "0";
215 #ifdef MODIFY_TARGET_NAME
217 /* Information on how to alter the target name based on a command-line
218 switch. The only case we support now is simply appending or deleting a
219 string to or from the end of the first part of the configuration name. */
224 enum add_del
{ADD
, DELETE
} add_del
;
227 modify_target
[] = MODIFY_TARGET_NAME
;
230 /* The number of errors that have occurred; the link phase will not be
231 run if this is non-zero. */
232 static int error_count
= 0;
234 /* Greatest exit code of sub-processes that has been encountered up to
236 static int greatest_status
= 1;
238 /* This is the obstack which we use to allocate many strings. */
240 static struct obstack obstack
;
242 /* This is the obstack to build an environment variable to pass to
243 collect2 that describes all of the relevant switches of what to
244 pass the compiler in building the list of pointers to constructors
247 static struct obstack collect_obstack
;
249 /* These structs are used to collect resource usage information for
251 #ifdef HAVE_GETRUSAGE
252 static struct rusage rus
, prus
;
255 /* Forward declaration for prototypes. */
258 static void init_spec
PARAMS ((void));
260 static char **split_directories
PARAMS ((const char *, int *));
261 static void free_split_directories
PARAMS ((char **));
262 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
264 static void store_arg
PARAMS ((const char *, int, int));
265 static char *load_specs
PARAMS ((const char *));
266 static void read_specs
PARAMS ((const char *, int));
267 static void set_spec
PARAMS ((const char *, const char *));
268 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
269 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
270 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
271 static int access_check
PARAMS ((const char *, int));
272 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
273 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
274 const char *, int, int, int *));
275 static void translate_options
PARAMS ((int *, const char *const **));
276 static char *skip_whitespace
PARAMS ((char *));
277 static void delete_if_ordinary
PARAMS ((const char *));
278 static void delete_temp_files
PARAMS ((void));
279 static void delete_failure_queue
PARAMS ((void));
280 static void clear_failure_queue
PARAMS ((void));
281 static int check_live_switch
PARAMS ((int, int));
282 static const char *handle_braces
PARAMS ((const char *));
283 static char *save_string
PARAMS ((const char *, int));
284 static int do_spec_1
PARAMS ((const char *, int, const char *));
285 static const char *find_file
PARAMS ((const char *));
286 static int is_directory
PARAMS ((const char *, const char *, int));
287 static void validate_switches
PARAMS ((const char *));
288 static void validate_all_switches
PARAMS ((void));
289 static void give_switch
PARAMS ((int, int, int));
290 static int used_arg
PARAMS ((const char *, int));
291 static int default_arg
PARAMS ((const char *, int));
292 static void set_multilib_dir
PARAMS ((void));
293 static void print_multilib_info
PARAMS ((void));
294 static void perror_with_name
PARAMS ((const char *));
295 static void pfatal_pexecute
PARAMS ((const char *, const char *))
297 static void notice
PARAMS ((const char *, ...))
299 static void display_help
PARAMS ((void));
300 static void add_preprocessor_option
PARAMS ((const char *, int));
301 static void add_assembler_option
PARAMS ((const char *, int));
302 static void add_linker_option
PARAMS ((const char *, int));
303 static void process_command
PARAMS ((int, const char *const *));
304 static int execute
PARAMS ((void));
305 static void clear_args
PARAMS ((void));
306 static void fatal_error
PARAMS ((int));
307 static void set_input
PARAMS ((const char *));
308 static void init_gcc_specs
PARAMS ((struct obstack
*,
312 /* The Specs Language
314 Specs are strings containing lines, each of which (if not blank)
315 is made up of a program name, and arguments separated by spaces.
316 The program name must be exact and start from root, since no path
317 is searched and it is unreliable to depend on the current working directory.
318 Redirection of input or output is not supported; the subprograms must
319 accept filenames saying what files to read and write.
321 In addition, the specs can contain %-sequences to substitute variable text
322 or for conditional text. Here is a table of all defined %-sequences.
323 Note that spaces are not generated automatically around the results of
324 expanding these sequences; therefore, you can concatenate them together
325 or with constant text in a single argument.
327 %% substitute one % into the program name or argument.
328 %i substitute the name of the input file being processed.
329 %b substitute the basename of the input file being processed.
330 This is the substring up to (and not including) the last period
331 and not including the directory.
332 %B same as %b, but include the file suffix (text after the last period).
334 substitute a file name that has suffix SUFFIX and is chosen
335 once per compilation, and mark the argument a la %d. To reduce
336 exposure to denial-of-service attacks, the file name is now
337 chosen in a way that is hard to predict even when previously
338 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
339 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
340 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
341 had been pre-processed. Previously, %g was simply substituted
342 with a file name chosen once per compilation, without regard
343 to any appended suffix (which was therefore treated just like
344 ordinary text), making such attacks more likely to succeed.
346 like %g, but generates a new temporary file name even if %uSUFFIX
349 substitutes the last file name generated with %uSUFFIX, generating a
350 new one if there is no such last file name. In the absence of any
351 %uSUFFIX, this is just like %gSUFFIX, except they don't share
352 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
353 would involve the generation of two distinct file names, one
354 for each `%g.s' and another for each `%U.s'. Previously, %U was
355 simply substituted with a file name chosen for the previous %u,
356 without regard to any appended suffix.
358 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
359 writable, and if save-temps is off; otherwise, substitute the name
360 of a temporary file, just like %u. This temporary file is not
361 meant for communication between processes, but rather as a junk
364 substitutes .SUFFIX for the suffixes of a matched switch's args when
365 it is subsequently output with %*. SUFFIX is terminated by the next
367 %d marks the argument containing or following the %d as a
368 temporary file name, so that that file will be deleted if CC exits
369 successfully. Unlike %g, this contributes no text to the argument.
370 %w marks the argument containing or following the %w as the
371 "output file" of this compilation. This puts the argument
372 into the sequence of arguments that %o will substitute later.
374 like %{...} but mark last argument supplied within
375 as a file to be deleted on failure.
376 %o substitutes the names of all the output files, with spaces
377 automatically placed around them. You should write spaces
378 around the %o as well or the results are undefined.
379 %o is for use in the specs for running the linker.
380 Input files whose names have no recognized suffix are not compiled
381 at all, but they are included among the output files, so they will
383 %O substitutes the suffix for object files. Note that this is
384 handled specially when it immediately follows %g, %u, or %U
385 (with or without a suffix argument) because of the need for
386 those to form complete file names. The handling is such that
387 %O is treated exactly as if it had already been substituted,
388 except that %g, %u, and %U do not currently support additional
389 SUFFIX characters following %O as they would following, for
391 %p substitutes the standard macro predefinitions for the
392 current target machine. Use this when running cpp.
393 %P like %p, but puts `__' before and after the name of each macro.
394 (Except macros that already have __.)
396 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
397 %s current argument is the name of a library or startup file of some sort.
398 Search for that file in a standard list of directories
399 and substitute the full name found.
400 %eSTR Print STR as an error message. STR is terminated by a newline.
401 Use this when inconsistent options are detected.
402 %nSTR Print STR as an notice. STR is terminated by a newline.
403 %x{OPTION} Accumulate an option for %X.
404 %X Output the accumulated linker options specified by compilations.
405 %Y Output the accumulated assembler options specified by compilations.
406 %Z Output the accumulated preprocessor options specified by compilations.
407 %v1 Substitute the major version number of GCC.
408 (For version 2.5.3, this is 2.)
409 %v2 Substitute the minor version number of GCC.
410 (For version 2.5.3, this is 5.)
411 %v3 Substitute the patch level number of GCC.
412 (For version 2.5.3, this is 3.)
413 %a process ASM_SPEC as a spec.
414 This allows config.h to specify part of the spec for running as.
415 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
416 used here. This can be used to run a post-processor after the
417 assembler has done its job.
418 %D Dump out a -L option for each directory in startfile_prefixes.
419 If multilib_dir is set, extra entries are generated with it affixed.
420 %l process LINK_SPEC as a spec.
421 %L process LIB_SPEC as a spec.
422 %G process LIBGCC_SPEC as a spec.
423 %M output multilib_dir with directory separators replaced with "_";
424 if multilib_dir is not set or is ".", output "".
425 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
426 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
427 %c process SIGNED_CHAR_SPEC as a spec.
428 %C process CPP_SPEC as a spec.
429 %1 process CC1_SPEC as a spec.
430 %2 process CC1PLUS_SPEC as a spec.
431 %| output "-" if the input for the current command is coming from a pipe.
432 %* substitute the variable part of a matched option. (See below.)
433 Note that each comma in the substituted string is replaced by
435 %{S} substitutes the -S switch, if that switch was given to CC.
436 If that switch was not specified, this substitutes nothing.
437 Here S is a metasyntactic variable.
438 %{S*} substitutes all the switches specified to CC whose names start
439 with -S. This is used for -o, -I, etc; switches that take
440 arguments. CC considers `-o foo' as being one switch whose
441 name starts with `o'. %{o*} would substitute this text,
442 including the space; thus, two arguments would be generated.
443 %{^S*} likewise, but don't put a blank between a switch and any args.
444 %{S*&T*} likewise, but preserve order of S and T options (the order
445 of S and T in the spec is not significant). Can be any number
446 of ampersand-separated variables; for each the wild card is
447 optional. Useful for CPP as %{D*&U*&A*}.
448 %{S*:X} substitutes X if one or more switches whose names start with -S are
449 specified to CC. Note that the tail part of the -S option
450 (i.e. the part matched by the `*') will be substituted for each
451 occurrence of %* within X.
452 %{<S} remove all occurences of -S from the command line.
453 Note - this option is position dependent. % commands in the
454 spec string before this option will see -S, % commands in the
455 spec string after this option will not.
456 %{S:X} substitutes X, but only if the -S switch was given to CC.
457 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
458 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
459 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
460 %{.S:X} substitutes X, but only if processing a file with suffix S.
461 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
462 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
463 combined with ! and . as above binding stronger than the OR.
464 %(Spec) processes a specification defined in a specs file as *Spec:
465 %[Spec] as above, but put __ around -D arguments
467 The conditional text X in a %{S:X} or %{!S:X} construct may contain
468 other nested % constructs or spaces, or even newlines. They are
469 processed as usual, as described above.
471 The -O, -f, -m, and -W switches are handled specifically in these
472 constructs. If another value of -O or the negated form of a -f, -m, or
473 -W switch is found later in the command line, the earlier switch
474 value is ignored, except with {S*} where S is just one letter; this
475 passes all matching options.
477 The character | at the beginning of the predicate text is used to indicate
478 that a command should be piped to the following command, but only if -pipe
481 Note that it is built into CC which switches take arguments and which
482 do not. You might think it would be useful to generalize this to
483 allow each compiler's spec to say which switches take arguments. But
484 this cannot be done in a consistent fashion. CC cannot even decide
485 which input files have been specified without knowing which switches
486 take arguments, and it must know which input files to compile in order
487 to tell which compilers to run.
489 CC also knows implicitly that arguments starting in `-l' are to be
490 treated as compiler output files, and passed to the linker in their
491 proper position among the other output files. */
493 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
495 /* config.h can define ASM_SPEC to provide extra args to the assembler
496 or extra switch-translations. */
501 /* config.h can define ASM_FINAL_SPEC to run a post processor after
502 the assembler has run. */
503 #ifndef ASM_FINAL_SPEC
504 #define ASM_FINAL_SPEC ""
507 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
508 or extra switch-translations. */
513 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
514 or extra switch-translations. */
519 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
520 or extra switch-translations. */
522 #define CC1PLUS_SPEC ""
525 /* config.h can define LINK_SPEC to provide extra args to the linker
526 or extra switch-translations. */
531 /* config.h can define LIB_SPEC to override the default libraries. */
533 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
536 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
539 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
540 /* Have gcc do the search for libgcc.a. */
541 #define LIBGCC_SPEC "libgcc.a%s"
543 #define LIBGCC_SPEC "-lgcc"
547 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
548 #ifndef STARTFILE_SPEC
549 #define STARTFILE_SPEC \
550 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
553 /* config.h can define SWITCHES_NEED_SPACES to control which options
554 require spaces between the option and the argument. */
555 #ifndef SWITCHES_NEED_SPACES
556 #define SWITCHES_NEED_SPACES ""
559 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
561 #define ENDFILE_SPEC ""
564 /* This spec is used for telling cpp whether char is signed or not. */
565 #ifndef SIGNED_CHAR_SPEC
566 /* Use #if rather than ?:
567 because MIPS C compiler rejects like ?: in initializers. */
568 #if DEFAULT_SIGNED_CHAR
569 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
571 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
576 #define LINKER_NAME "collect2"
579 /* Here is the spec for running the linker, after compiling all files. */
581 /* -u* was put back because both BSD and SysV seem to support it. */
582 /* %{static:} simply prevents an error message if the target machine
583 doesn't handle -static. */
584 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
585 scripts which exist in user specified directories, or in standard
587 #ifndef LINK_COMMAND_SPEC
588 #define LINK_COMMAND_SPEC "\
589 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
590 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
591 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
592 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
593 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
596 #ifndef LINK_LIBGCC_SPEC
597 # ifdef LINK_LIBGCC_SPECIAL
598 /* Don't generate -L options for startfile prefix list. */
599 # define LINK_LIBGCC_SPEC ""
601 /* Do generate them. */
602 # define LINK_LIBGCC_SPEC "%D"
606 static const char *cpp_spec
= CPP_SPEC
;
607 static const char *cpp_predefines
= CPP_PREDEFINES
;
608 static const char *cc1_spec
= CC1_SPEC
;
609 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
610 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
611 static const char *asm_spec
= ASM_SPEC
;
612 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
613 static const char *link_spec
= LINK_SPEC
;
614 static const char *lib_spec
= LIB_SPEC
;
615 static const char *libgcc_spec
= LIBGCC_SPEC
;
616 static const char *endfile_spec
= ENDFILE_SPEC
;
617 static const char *startfile_spec
= STARTFILE_SPEC
;
618 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
619 static const char *linker_name_spec
= LINKER_NAME
;
620 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
621 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
623 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
624 There should be no need to override these in target dependent files,
625 but we need to copy them to the specs file so that newer versions
626 of the GCC driver can correctly drive older tool chains with the
627 appropriate -B options. */
629 static const char *trad_capable_cpp
=
630 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
632 static const char *cpp_options
=
633 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
634 %{std*} %{nostdinc*}\
635 %{C} %{v} %{I*} %{P} %{$} %I\
636 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
637 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
638 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
639 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
640 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
641 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
642 %{ffast-math:-D__FAST_MATH__}\
643 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
644 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
645 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
646 %{fshow-column} %{fno-show-column}\
647 %{fleading-underscore} %{fno-leading-underscore}\
648 %{fno-operator-names} %{ftabstop=*} %{remap}\
649 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
652 /* NB: This is shared amongst all front-ends. */
653 static const char *cc1_options
=
654 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
655 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
656 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
657 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
658 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
659 %{--target-help:--target-help}\
660 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
661 %{fsyntax-only:-o %j} %{-param*}";
663 static const char *asm_options
=
664 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
666 static const char *invoke_as
=
667 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
669 /* Some compilers have limits on line lengths, and the multilib_select
670 and/or multilib_matches strings can be very long, so we build them at
672 static struct obstack multilib_obstack
;
673 static const char *multilib_select
;
674 static const char *multilib_matches
;
675 static const char *multilib_defaults
;
676 static const char *multilib_exclusions
;
677 #include "multilib.h"
679 /* Check whether a particular argument is a default argument. */
681 #ifndef MULTILIB_DEFAULTS
682 #define MULTILIB_DEFAULTS { "" }
685 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
689 struct user_specs
*next
;
690 const char *filename
;
693 static struct user_specs
*user_specs_head
, *user_specs_tail
;
695 /* This defines which switch letters take arguments. */
697 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
698 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
699 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
700 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
701 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
702 || (CHAR) == 'B' || (CHAR) == 'b')
704 #ifndef SWITCH_TAKES_ARG
705 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
708 /* This defines which multi-letter switches take arguments. */
710 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
711 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
712 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
713 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
714 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
715 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
716 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
717 || !strcmp (STR, "specs") \
718 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
720 #ifndef WORD_SWITCH_TAKES_ARG
721 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
724 #ifdef HAVE_EXECUTABLE_SUFFIX
725 /* This defines which switches stop a full compilation. */
726 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
727 ((CHAR) == 'c' || (CHAR) == 'S')
729 #ifndef SWITCH_CURTAILS_COMPILATION
730 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
731 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
735 /* Record the mapping from file suffixes for compilation specs. */
739 const char *suffix
; /* Use this compiler for input files
740 whose names end in this suffix. */
742 const char *spec
; /* To use this compiler, run this spec. */
744 const char *cpp_spec
; /* If non-NULL, substitute this spec
745 for `%C', rather than the usual
749 /* Pointer to a vector of `struct compiler' that gives the spec for
750 compiling a file, based on its suffix.
751 A file that does not end in any of these suffixes will be passed
752 unchanged to the loader and nothing else will be done to it.
754 An entry containing two 0s is used to terminate the vector.
756 If multiple entries match a file, the last matching one is used. */
758 static struct compiler
*compilers
;
760 /* Number of entries in `compilers', not counting the null terminator. */
762 static int n_compilers
;
764 /* The default list of file name suffixes and their compilation specs. */
766 static struct compiler default_compilers
[] =
768 /* Add lists of suffixes of known languages here. If those languages
769 were not present when we built the driver, we will hit these copies
770 and be given a more meaningful error than "file not used since
771 linking is not done". */
772 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
773 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
774 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
776 {".ads", "#Ada", 0}, {".adb", "#Ada", 0}, {".ada", "#Ada", 0},
777 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
778 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
779 {".r", "#Ratfor", 0},
780 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
781 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
782 {".java", "#Java", 0}, {".class", "#Java", 0},
783 {".zip", "#Java", 0}, {".jar", "#Java", 0},
784 /* Next come the entries for C. */
787 /* cc1 has an integrated ISO C preprocessor. We should invoke the
788 external preprocessor if -save-temps or -traditional is given. */
789 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
791 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
792 %(cpp_options) %b.i \n\
793 cc1 -fpreprocessed %b.i %(cc1_options)}\
795 %{traditional|ftraditional|traditional-cpp:\
796 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
797 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
798 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
799 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
800 %{!fsyntax-only:%(invoke_as)}}}}", 0},
802 "%{!E:%e-E required when input is from standard input}\
803 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
804 {".h", "@c-header", 0},
806 "%{!E:%eCompilation of header file requested} \
807 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
808 {".i", "@cpp-output", 0},
810 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
811 {".s", "@assembler", 0},
813 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}", 0},
814 {".S", "@assembler-with-cpp", 0},
815 {"@assembler-with-cpp",
816 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
817 %{!M:%{!MM:%{!E:%(invoke_as)}}}", 0},
819 /* Mark end of table */
823 /* Number of elements in default_compilers, not counting the terminator. */
825 static int n_default_compilers
826 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
828 /* A vector of options to give to the linker.
829 These options are accumulated by %x,
830 and substituted into the linker command with %X. */
831 static int n_linker_options
;
832 static char **linker_options
;
834 /* A vector of options to give to the assembler.
835 These options are accumulated by -Wa,
836 and substituted into the assembler command with %Y. */
837 static int n_assembler_options
;
838 static char **assembler_options
;
840 /* A vector of options to give to the preprocessor.
841 These options are accumulated by -Wp,
842 and substituted into the preprocessor command with %Z. */
843 static int n_preprocessor_options
;
844 static char **preprocessor_options
;
846 /* Define how to map long options into short ones. */
848 /* This structure describes one mapping. */
851 /* The long option's name. */
853 /* The equivalent short option. */
854 const char *equivalent
;
855 /* Argument info. A string of flag chars; NULL equals no options.
856 a => argument required.
857 o => argument optional.
858 j => join argument to equivalent, making one word.
859 * => require other text after NAME as an argument. */
860 const char *arg_info
;
863 /* This is the table of mappings. Mappings are tried sequentially
864 for each option encountered; the first one that matches, wins. */
866 struct option_map option_map
[] =
868 {"--all-warnings", "-Wall", 0},
869 {"--ansi", "-ansi", 0},
870 {"--assemble", "-S", 0},
871 {"--assert", "-A", "a"},
872 {"--classpath", "-fclasspath=", "aj"},
873 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
874 {"--comments", "-C", 0},
875 {"--compile", "-c", 0},
876 {"--debug", "-g", "oj"},
877 {"--define-macro", "-D", "aj"},
878 {"--dependencies", "-M", 0},
879 {"--dump", "-d", "a"},
880 {"--dumpbase", "-dumpbase", "a"},
881 {"--entry", "-e", 0},
882 {"--extra-warnings", "-W", 0},
883 {"--for-assembler", "-Wa", "a"},
884 {"--for-linker", "-Xlinker", "a"},
885 {"--force-link", "-u", "a"},
886 {"--imacros", "-imacros", "a"},
887 {"--include", "-include", "a"},
888 {"--include-barrier", "-I-", 0},
889 {"--include-directory", "-I", "aj"},
890 {"--include-directory-after", "-idirafter", "a"},
891 {"--include-prefix", "-iprefix", "a"},
892 {"--include-with-prefix", "-iwithprefix", "a"},
893 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
894 {"--include-with-prefix-after", "-iwithprefix", "a"},
895 {"--language", "-x", "a"},
896 {"--library-directory", "-L", "a"},
897 {"--machine", "-m", "aj"},
898 {"--machine-", "-m", "*j"},
899 {"--no-line-commands", "-P", 0},
900 {"--no-precompiled-includes", "-noprecomp", 0},
901 {"--no-standard-includes", "-nostdinc", 0},
902 {"--no-standard-libraries", "-nostdlib", 0},
903 {"--no-warnings", "-w", 0},
904 {"--optimize", "-O", "oj"},
905 {"--output", "-o", "a"},
906 {"--output-class-directory", "-foutput-class-dir=", "ja"},
907 {"--param", "--param", "a"},
908 {"--pedantic", "-pedantic", 0},
909 {"--pedantic-errors", "-pedantic-errors", 0},
910 {"--pipe", "-pipe", 0},
911 {"--prefix", "-B", "a"},
912 {"--preprocess", "-E", 0},
913 {"--print-search-dirs", "-print-search-dirs", 0},
914 {"--print-file-name", "-print-file-name=", "aj"},
915 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
916 {"--print-missing-file-dependencies", "-MG", 0},
917 {"--print-multi-lib", "-print-multi-lib", 0},
918 {"--print-multi-directory", "-print-multi-directory", 0},
919 {"--print-prog-name", "-print-prog-name=", "aj"},
920 {"--profile", "-p", 0},
921 {"--profile-blocks", "-a", 0},
922 {"--quiet", "-q", 0},
923 {"--save-temps", "-save-temps", 0},
924 {"--shared", "-shared", 0},
925 {"--silent", "-q", 0},
926 {"--specs", "-specs=", "aj"},
927 {"--static", "-static", 0},
928 {"--std", "-std=", "aj"},
929 {"--symbolic", "-symbolic", 0},
930 {"--target", "-b", "a"},
931 {"--time", "-time", 0},
932 {"--trace-includes", "-H", 0},
933 {"--traditional", "-traditional", 0},
934 {"--traditional-cpp", "-traditional-cpp", 0},
935 {"--trigraphs", "-trigraphs", 0},
936 {"--undefine-macro", "-U", "aj"},
937 {"--use-version", "-V", "a"},
938 {"--user-dependencies", "-MM", 0},
939 {"--verbose", "-v", 0},
940 {"--version", "-dumpversion", 0},
941 {"--warn-", "-W", "*j"},
942 {"--write-dependencies", "-MD", 0},
943 {"--write-user-dependencies", "-MMD", 0},
947 /* Translate the options described by *ARGCP and *ARGVP.
948 Make a new vector and store it back in *ARGVP,
949 and store its length in *ARGVC. */
952 translate_options (argcp
, argvp
)
954 const char *const **argvp
;
958 const char *const *argv
= *argvp
;
960 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
964 newv
[newindex
++] = argv
[i
++];
968 /* Translate -- options. */
969 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
972 /* Find a mapping that applies to this option. */
973 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
975 size_t optlen
= strlen (option_map
[j
].name
);
976 size_t arglen
= strlen (argv
[i
]);
977 size_t complen
= arglen
> optlen
? optlen
: arglen
;
978 const char *arginfo
= option_map
[j
].arg_info
;
983 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
990 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
991 if (strlen (option_map
[k
].name
) >= arglen
992 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
994 error ("Ambiguous abbreviation %s", argv
[i
]);
998 if (k
!= ARRAY_SIZE (option_map
))
1002 if (arglen
> optlen
)
1004 /* If the option has an argument, accept that. */
1005 if (argv
[i
][optlen
] == '=')
1006 arg
= argv
[i
] + optlen
+ 1;
1008 /* If this mapping requires extra text at end of name,
1009 accept that as "argument". */
1010 else if (strchr (arginfo
, '*') != 0)
1011 arg
= argv
[i
] + optlen
;
1013 /* Otherwise, extra text at end means mismatch.
1014 Try other mappings. */
1019 else if (strchr (arginfo
, '*') != 0)
1021 error ("Incomplete `%s' option", option_map
[j
].name
);
1025 /* Handle arguments. */
1026 if (strchr (arginfo
, 'a') != 0)
1032 error ("Missing argument to `%s' option",
1033 option_map
[j
].name
);
1040 else if (strchr (arginfo
, '*') != 0)
1042 else if (strchr (arginfo
, 'o') == 0)
1045 error ("Extraneous argument to `%s' option",
1046 option_map
[j
].name
);
1050 /* Store the translation as one argv elt or as two. */
1051 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1052 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1056 newv
[newindex
++] = option_map
[j
].equivalent
;
1057 newv
[newindex
++] = arg
;
1060 newv
[newindex
++] = option_map
[j
].equivalent
;
1068 /* Handle old-fashioned options--just copy them through,
1069 with their arguments. */
1070 else if (argv
[i
][0] == '-')
1072 const char *p
= argv
[i
] + 1;
1076 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1077 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1078 else if (WORD_SWITCH_TAKES_ARG (p
))
1079 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1080 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1083 else if (! strcmp (p
, "Xlinker"))
1086 /* Watch out for an option at the end of the command line that
1087 is missing arguments, and avoid skipping past the end of the
1089 if (nskip
+ i
> argc
)
1094 newv
[newindex
++] = argv
[i
++];
1099 /* Ordinary operands, or +e options. */
1100 newv
[newindex
++] = argv
[i
++];
1115 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1116 be considered whitespace. */
1117 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1119 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1133 /* Structures to keep track of prefixes to try when looking for files. */
1137 char *prefix
; /* String to prepend to the path. */
1138 struct prefix_list
*next
; /* Next in linked list. */
1139 int require_machine_suffix
; /* Don't use without machine_suffix. */
1140 /* 2 means try both machine_suffix and just_machine_suffix. */
1141 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1142 int priority
; /* Sort key - priority within list */
1147 struct prefix_list
*plist
; /* List of prefixes to try */
1148 int max_len
; /* Max length of a prefix in PLIST */
1149 const char *name
; /* Name of this list (used in config stuff) */
1152 /* List of prefixes to try when looking for executables. */
1154 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1156 /* List of prefixes to try when looking for startup (crt0) files. */
1158 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1160 /* List of prefixes to try when looking for include files. */
1162 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1164 /* Suffix to attach to directories searched for commands.
1165 This looks like `MACHINE/VERSION/'. */
1167 static const char *machine_suffix
= 0;
1169 /* Suffix to attach to directories searched for commands.
1170 This is just `MACHINE/'. */
1172 static const char *just_machine_suffix
= 0;
1174 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1176 static const char *gcc_exec_prefix
;
1178 /* Default prefixes to attach to command names. */
1180 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1181 #undef MD_EXEC_PREFIX
1182 #undef MD_STARTFILE_PREFIX
1183 #undef MD_STARTFILE_PREFIX_1
1186 /* If no prefixes defined, use the null string, which will disable them. */
1187 #ifndef MD_EXEC_PREFIX
1188 #define MD_EXEC_PREFIX ""
1190 #ifndef MD_STARTFILE_PREFIX
1191 #define MD_STARTFILE_PREFIX ""
1193 #ifndef MD_STARTFILE_PREFIX_1
1194 #define MD_STARTFILE_PREFIX_1 ""
1197 /* Supply defaults for the standard prefixes. */
1199 #ifndef STANDARD_EXEC_PREFIX
1200 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1202 #ifndef STANDARD_STARTFILE_PREFIX
1203 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1205 #ifndef TOOLDIR_BASE_PREFIX
1206 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1208 #ifndef STANDARD_BINDIR_PREFIX
1209 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1212 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1213 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1214 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1216 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1217 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1218 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1219 static const char *standard_startfile_prefix_1
= "/lib/";
1220 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1222 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1223 static const char *tooldir_prefix
;
1225 static const char *standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1227 /* Subdirectory to use for locating libraries. Set by
1228 set_multilib_dir based on the compilation options. */
1230 static const char *multilib_dir
;
1232 /* Structure to keep track of the specs that have been defined so far.
1233 These are accessed using %(specname) or %[specname] in a compiler
1238 /* The following 2 fields must be first */
1239 /* to allow EXTRA_SPECS to be initialized */
1240 const char *name
; /* name of the spec. */
1241 const char *ptr
; /* available ptr if no static pointer */
1243 /* The following fields are not initialized */
1244 /* by EXTRA_SPECS */
1245 const char **ptr_spec
; /* pointer to the spec itself. */
1246 struct spec_list
*next
; /* Next spec in linked list. */
1247 int name_len
; /* length of the name */
1248 int alloc_p
; /* whether string was allocated */
1251 #define INIT_STATIC_SPEC(NAME,PTR) \
1252 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1254 /* List of statically defined specs. */
1255 static struct spec_list static_specs
[] =
1257 INIT_STATIC_SPEC ("asm", &asm_spec
),
1258 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1259 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1260 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1261 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1262 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1263 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1264 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1265 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1266 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1267 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1268 INIT_STATIC_SPEC ("link", &link_spec
),
1269 INIT_STATIC_SPEC ("lib", &lib_spec
),
1270 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1271 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1272 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1273 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1274 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1275 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1276 INIT_STATIC_SPEC ("version", &compiler_version
),
1277 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1278 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1279 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1280 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1281 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1282 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1283 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1284 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1285 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1286 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1289 #ifdef EXTRA_SPECS /* additional specs needed */
1290 /* Structure to keep track of just the first two args of a spec_list.
1291 That is all that the EXTRA_SPECS macro gives us. */
1298 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1299 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1302 /* List of dynamically allocates specs that have been defined so far. */
1304 static struct spec_list
*specs
= (struct spec_list
*) 0;
1306 /* Add appropriate libgcc specs to OBSTACK, taking into account
1307 various permutations of -shared-libgcc, -shared, and such. */
1310 init_gcc_specs (obstack
, shared_name
, static_name
)
1311 struct obstack
*obstack
;
1312 const char *shared_name
;
1313 const char *static_name
;
1317 /* If we see -shared-libgcc, then use the shared version. */
1318 sprintf (buffer
, "%%{shared-libgcc:%s}", shared_name
);
1319 obstack_grow (obstack
, buffer
, strlen (buffer
));
1320 /* If we see -static-libgcc, then use the static version. */
1321 sprintf (buffer
, "%%{static-libgcc:%s}", static_name
);
1322 obstack_grow (obstack
, buffer
, strlen (buffer
));
1323 /* Otherwise, if we see -shared, then use the shared version. */
1325 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s}}}",
1327 obstack_grow (obstack
, buffer
, strlen (buffer
));
1328 /* Otherwise, use the static version. */
1330 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1332 obstack_grow (obstack
, buffer
, strlen (buffer
));
1335 /* Initialize the specs lookup routines. */
1340 struct spec_list
*next
= (struct spec_list
*) 0;
1341 struct spec_list
*sl
= (struct spec_list
*) 0;
1345 return; /* Already initialized. */
1348 notice ("Using builtin specs.\n");
1351 extra_specs
= (struct spec_list
*)
1352 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1354 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1356 sl
= &extra_specs
[i
];
1357 sl
->name
= extra_specs_1
[i
].name
;
1358 sl
->ptr
= extra_specs_1
[i
].ptr
;
1360 sl
->name_len
= strlen (sl
->name
);
1361 sl
->ptr_spec
= &sl
->ptr
;
1366 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1368 sl
= &static_specs
[i
];
1373 #ifdef ENABLE_SHARED_LIBGCC
1374 /* ??? If neither -shared-libgcc nor --static-libgcc was
1375 seen, then we should be making an educated guess. Some proposed
1376 heuristics for ELF include:
1378 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1379 program will be doing dynamic loading, which will likely
1380 need the shared libgcc.
1382 (2) If "-ldl", then it's also a fair bet that we're doing
1385 (3) For each ET_DYN we're linking against (either through -lfoo
1386 or /some/path/foo.so), check to see whether it or one of
1387 its dependancies depends on a shared libgcc.
1391 If the runtime is fixed to look for program headers instead
1392 of calling __register_frame_info at all, for each object,
1393 use the shared libgcc if any EH symbol referenced.
1395 If crtstuff is fixed to not invoke __register_frame_info
1396 automatically, for each object, use the shared libgcc if
1397 any non-empty unwind section found.
1399 Doing any of this probably requires invoking an external program to
1400 do the actual object file scanning. */
1402 const char *p
= libgcc_spec
;
1405 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1406 when given the proper command line arguments. */
1409 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1411 init_gcc_specs (&obstack
,
1412 #ifdef NO_SHARED_LIBGCC_MULTILIB
1422 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1424 /* Ug. We don't know shared library extensions. Hope that
1425 systems that use this form don't do shared libraries. */
1426 init_gcc_specs (&obstack
,
1427 #ifdef NO_SHARED_LIBGCC_MULTILIB
1439 obstack_1grow (&obstack
, *p
);
1440 in_sep
= (*p
== ' ');
1445 obstack_1grow (&obstack
, '\0');
1446 libgcc_spec
= obstack_finish (&obstack
);
1453 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1454 removed; If the spec starts with a + then SPEC is added to the end of the
1458 set_spec (name
, spec
)
1462 struct spec_list
*sl
;
1463 const char *old_spec
;
1464 int name_len
= strlen (name
);
1467 /* If this is the first call, initialize the statically allocated specs. */
1470 struct spec_list
*next
= (struct spec_list
*) 0;
1471 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1473 sl
= &static_specs
[i
];
1480 /* See if the spec already exists. */
1481 for (sl
= specs
; sl
; sl
= sl
->next
)
1482 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1487 /* Not found - make it. */
1488 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1489 sl
->name
= xstrdup (name
);
1490 sl
->name_len
= name_len
;
1491 sl
->ptr_spec
= &sl
->ptr
;
1493 *(sl
->ptr_spec
) = "";
1498 old_spec
= *(sl
->ptr_spec
);
1499 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1500 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1505 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1508 /* Free the old spec. */
1509 if (old_spec
&& sl
->alloc_p
)
1510 free ((PTR
) old_spec
);
1515 /* Accumulate a command (program name and args), and run it. */
1517 /* Vector of pointers to arguments in the current line of specifications. */
1519 static const char **argbuf
;
1521 /* Number of elements allocated in argbuf. */
1523 static int argbuf_length
;
1525 /* Number of elements in argbuf currently in use (containing args). */
1527 static int argbuf_index
;
1529 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1530 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1533 static struct temp_name
{
1534 const char *suffix
; /* suffix associated with the code. */
1535 int length
; /* strlen (suffix). */
1536 int unique
; /* Indicates whether %g or %u/%U was used. */
1537 const char *filename
; /* associated filename. */
1538 int filename_length
; /* strlen (filename). */
1539 struct temp_name
*next
;
1542 /* Number of commands executed so far. */
1544 static int execution_count
;
1546 /* Number of commands that exited with a signal. */
1548 static int signal_count
;
1550 /* Name with which this program was invoked. */
1552 static const char *programname
;
1554 /* Clear out the vector of arguments (after a command is executed). */
1562 /* Add one argument to the vector at the end.
1563 This is done when a space is seen or at the end of the line.
1564 If DELETE_ALWAYS is nonzero, the arg is a filename
1565 and the file should be deleted eventually.
1566 If DELETE_FAILURE is nonzero, the arg is a filename
1567 and the file should be deleted if this compilation fails. */
1570 store_arg (arg
, delete_always
, delete_failure
)
1572 int delete_always
, delete_failure
;
1574 if (argbuf_index
+ 1 == argbuf_length
)
1576 = (const char **) xrealloc (argbuf
,
1577 (argbuf_length
*= 2) * sizeof (const char *));
1579 argbuf
[argbuf_index
++] = arg
;
1580 argbuf
[argbuf_index
] = 0;
1582 if (delete_always
|| delete_failure
)
1583 record_temp_file (arg
, delete_always
, delete_failure
);
1586 /* Load specs from a file name named FILENAME, replacing occurances of
1587 various different types of line-endings, \r\n, \n\r and just \r, with
1591 load_specs (filename
)
1592 const char *filename
;
1596 struct stat statbuf
;
1603 notice ("Reading specs from %s\n", filename
);
1605 /* Open and stat the file. */
1606 desc
= open (filename
, O_RDONLY
, 0);
1608 pfatal_with_name (filename
);
1609 if (stat (filename
, &statbuf
) < 0)
1610 pfatal_with_name (filename
);
1612 /* Read contents of file into BUFFER. */
1613 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1614 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1616 pfatal_with_name (filename
);
1617 buffer
[readlen
] = 0;
1620 specs
= xmalloc (readlen
+ 1);
1622 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1628 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1630 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1644 /* Read compilation specs from a file named FILENAME,
1645 replacing the default ones.
1647 A suffix which starts with `*' is a definition for
1648 one of the machine-specific sub-specs. The "suffix" should be
1649 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1650 The corresponding spec is stored in asm_spec, etc.,
1651 rather than in the `compilers' vector.
1653 Anything invalid in the file is a fatal error. */
1656 read_specs (filename
, main_p
)
1657 const char *filename
;
1663 buffer
= load_specs (filename
);
1665 /* Scan BUFFER for specs, putting them in the vector. */
1671 char *in
, *out
, *p1
, *p2
, *p3
;
1673 /* Advance P in BUFFER to the next nonblank nocomment line. */
1674 p
= skip_whitespace (p
);
1678 /* Is this a special command that starts with '%'? */
1679 /* Don't allow this for the main specs file, since it would
1680 encourage people to overwrite it. */
1681 if (*p
== '%' && !main_p
)
1684 while (*p
&& *p
!= '\n')
1690 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1691 && (p1
[sizeof "%include" - 1] == ' '
1692 || p1
[sizeof "%include" - 1] == '\t'))
1696 p1
+= sizeof ("%include");
1697 while (*p1
== ' ' || *p1
== '\t')
1700 if (*p1
++ != '<' || p
[-2] != '>')
1701 fatal ("specs %%include syntax malformed after %ld characters",
1702 (long) (p1
- buffer
+ 1));
1705 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1706 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1709 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1710 && (p1
[sizeof "%include_noerr" - 1] == ' '
1711 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1715 p1
+= sizeof "%include_noerr";
1716 while (*p1
== ' ' || *p1
== '\t')
1719 if (*p1
++ != '<' || p
[-2] != '>')
1720 fatal ("specs %%include syntax malformed after %ld characters",
1721 (long) (p1
- buffer
+ 1));
1724 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1726 read_specs (new_filename
, FALSE
);
1727 else if (verbose_flag
)
1728 notice ("Could not find specs file %s\n", p1
);
1731 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1732 && (p1
[sizeof "%rename" - 1] == ' '
1733 || p1
[sizeof "%rename" - 1] == '\t'))
1736 struct spec_list
*sl
;
1738 /* Get original name */
1739 p1
+= sizeof "%rename";
1740 while (*p1
== ' ' || *p1
== '\t')
1743 if (! ISALPHA ((unsigned char) *p1
))
1744 fatal ("specs %%rename syntax malformed after %ld characters",
1745 (long) (p1
- buffer
));
1748 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1751 if (*p2
!= ' ' && *p2
!= '\t')
1752 fatal ("specs %%rename syntax malformed after %ld characters",
1753 (long) (p2
- buffer
));
1757 while (*p2
== ' ' || *p2
== '\t')
1760 if (! ISALPHA ((unsigned char) *p2
))
1761 fatal ("specs %%rename syntax malformed after %ld characters",
1762 (long) (p2
- buffer
));
1764 /* Get new spec name. */
1766 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1770 fatal ("specs %%rename syntax malformed after %ld characters",
1771 (long) (p3
- buffer
));
1774 for (sl
= specs
; sl
; sl
= sl
->next
)
1775 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1779 fatal ("specs %s spec was not found to be renamed", p1
);
1781 if (strcmp (p1
, p2
) == 0)
1786 notice ("rename spec %s to %s\n", p1
, p2
);
1788 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1792 set_spec (p2
, *(sl
->ptr_spec
));
1794 free ((PTR
) *(sl
->ptr_spec
));
1796 *(sl
->ptr_spec
) = "";
1801 fatal ("specs unknown %% command after %ld characters",
1802 (long) (p1
- buffer
));
1805 /* Find the colon that should end the suffix. */
1807 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1810 /* The colon shouldn't be missing. */
1812 fatal ("specs file malformed after %ld characters",
1813 (long) (p1
- buffer
));
1815 /* Skip back over trailing whitespace. */
1817 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1820 /* Copy the suffix to a string. */
1821 suffix
= save_string (p
, p2
- p
);
1822 /* Find the next line. */
1823 p
= skip_whitespace (p1
+ 1);
1825 fatal ("specs file malformed after %ld characters",
1826 (long) (p
- buffer
));
1829 /* Find next blank line or end of string. */
1830 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1833 /* Specs end at the blank line and do not include the newline. */
1834 spec
= save_string (p
, p1
- p
);
1837 /* Delete backslash-newline sequences from the spec. */
1842 if (in
[0] == '\\' && in
[1] == '\n')
1844 else if (in
[0] == '#')
1845 while (*in
&& *in
!= '\n')
1853 if (suffix
[0] == '*')
1855 if (! strcmp (suffix
, "*link_command"))
1856 link_command_spec
= spec
;
1858 set_spec (suffix
+ 1, spec
);
1862 /* Add this pair to the vector. */
1864 = ((struct compiler
*)
1865 xrealloc (compilers
,
1866 (n_compilers
+ 2) * sizeof (struct compiler
)));
1868 compilers
[n_compilers
].suffix
= suffix
;
1869 compilers
[n_compilers
].spec
= spec
;
1871 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1875 link_command_spec
= spec
;
1878 if (link_command_spec
== 0)
1879 fatal ("spec file has no spec for linking");
1882 /* Record the names of temporary files we tell compilers to write,
1883 and delete them at the end of the run. */
1885 /* This is the common prefix we use to make temp file names.
1886 It is chosen once for each run of this program.
1887 It is substituted into a spec by %g or %j.
1888 Thus, all temp file names contain this prefix.
1889 In practice, all temp file names start with this prefix.
1891 This prefix comes from the envvar TMPDIR if it is defined;
1892 otherwise, from the P_tmpdir macro if that is defined;
1893 otherwise, in /usr/tmp or /tmp;
1894 or finally the current directory if all else fails. */
1896 static const char *temp_filename
;
1898 /* Length of the prefix. */
1900 static int temp_filename_length
;
1902 /* Define the list of temporary files to delete. */
1907 struct temp_file
*next
;
1910 /* Queue of files to delete on success or failure of compilation. */
1911 static struct temp_file
*always_delete_queue
;
1912 /* Queue of files to delete on failure of compilation. */
1913 static struct temp_file
*failure_delete_queue
;
1915 /* Record FILENAME as a file to be deleted automatically.
1916 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1917 otherwise delete it in any case.
1918 FAIL_DELETE nonzero means delete it if a compilation step fails;
1919 otherwise delete it in any case. */
1922 record_temp_file (filename
, always_delete
, fail_delete
)
1923 const char *filename
;
1927 register char *const name
= xstrdup (filename
);
1931 register struct temp_file
*temp
;
1932 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1933 if (! strcmp (name
, temp
->name
))
1936 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1937 temp
->next
= always_delete_queue
;
1939 always_delete_queue
= temp
;
1946 register struct temp_file
*temp
;
1947 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1948 if (! strcmp (name
, temp
->name
))
1951 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1952 temp
->next
= failure_delete_queue
;
1954 failure_delete_queue
= temp
;
1960 /* Delete all the temporary files whose names we previously recorded. */
1963 delete_if_ordinary (name
)
1970 printf ("Delete %s? (y or n) ", name
);
1974 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1977 if (i
== 'y' || i
== 'Y')
1979 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1980 if (unlink (name
) < 0)
1982 perror_with_name (name
);
1986 delete_temp_files ()
1988 register struct temp_file
*temp
;
1990 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1991 delete_if_ordinary (temp
->name
);
1992 always_delete_queue
= 0;
1995 /* Delete all the files to be deleted on error. */
1998 delete_failure_queue ()
2000 register struct temp_file
*temp
;
2002 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2003 delete_if_ordinary (temp
->name
);
2007 clear_failure_queue ()
2009 failure_delete_queue
= 0;
2012 /* Routine to add variables to the environment. We do this to pass
2013 the pathname of the gcc driver, and the directories search to the
2014 collect2 program, which is being run as ld. This way, we can be
2015 sure of executing the right compiler when collect2 wants to build
2016 constructors and destructors. Since the environment variables we
2017 use come from an obstack, we don't have to worry about allocating
2026 #ifndef VMS /* nor about VMS */
2028 extern char **environ
;
2029 char **old_environ
= environ
;
2033 int str_len
= strlen (str
);
2037 while ((ch
= *p
++) != '\0' && ch
!= '=')
2043 /* Search for replacing an existing environment variable, and
2044 count the number of total environment variables. */
2045 for (envp
= old_environ
; *envp
; envp
++)
2048 if (!strncmp (str
, *envp
, name_len
))
2055 /* Add a new environment variable */
2056 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+ 2));
2058 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
2059 sizeof (char *) * (num_envs
+ 1));
2064 #endif /* HAVE_PUTENV */
2066 /* Build a list of search directories from PATHS.
2067 PREFIX is a string to prepend to the list.
2068 If CHECK_DIR_P is non-zero we ensure the directory exists.
2069 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2070 It is also used by the --print-search-dirs flag. */
2073 build_search_list (paths
, prefix
, check_dir_p
)
2074 struct path_prefix
*paths
;
2078 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2080 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2081 int first_time
= TRUE
;
2082 struct prefix_list
*pprefix
;
2084 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2085 obstack_1grow (&collect_obstack
, '=');
2087 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2089 int len
= strlen (pprefix
->prefix
);
2093 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2096 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2099 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2100 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2103 if (just_machine_suffix
2104 && pprefix
->require_machine_suffix
== 2
2106 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2109 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2112 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2113 obstack_grow (&collect_obstack
, just_machine_suffix
,
2117 if (! pprefix
->require_machine_suffix
)
2120 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2123 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2127 obstack_1grow (&collect_obstack
, '\0');
2128 return obstack_finish (&collect_obstack
);
2131 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2135 putenv_from_prefixes (paths
, env_var
)
2136 struct path_prefix
*paths
;
2137 const char *env_var
;
2139 putenv (build_search_list (paths
, env_var
, 1));
2144 /* FIXME: the location independence code for VMS is hairier than this,
2145 and hasn't been written. */
2147 /* Split a filename into component directories. */
2150 split_directories (name
, ptr_num_dirs
)
2159 /* Count the number of directories. Special case MSDOS disk names as part
2160 of the initial directory. */
2162 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2163 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2168 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2170 while ((ch
= *p
++) != '\0')
2172 if (IS_DIR_SEPARATOR (ch
))
2175 while (IS_DIR_SEPARATOR (*p
))
2180 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2182 /* Now copy the directory parts. */
2185 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2186 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2188 dirs
[num_dirs
++] = save_string (p
, 3);
2191 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2194 while ((ch
= *p
++) != '\0')
2196 if (IS_DIR_SEPARATOR (ch
))
2198 while (IS_DIR_SEPARATOR (*p
))
2201 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2207 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2209 dirs
[num_dirs
] = NULL_PTR
;
2211 *ptr_num_dirs
= num_dirs
;
2216 /* Release storage held by split directories. */
2219 free_split_directories (dirs
)
2224 while (dirs
[i
] != NULL_PTR
)
2227 free ((char *) dirs
);
2230 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2231 to PREFIX starting with the directory portion of PROGNAME and a relative
2232 pathname of the difference between BIN_PREFIX and PREFIX.
2234 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2235 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2236 function will return /red/green/blue/../omega.
2238 If no relative prefix can be found, return NULL. */
2241 make_relative_prefix (progname
, bin_prefix
, prefix
)
2242 const char *progname
;
2243 const char *bin_prefix
;
2246 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2247 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2250 prog_dirs
= split_directories (progname
, &prog_num
);
2251 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2253 /* If there is no full pathname, try to find the program by checking in each
2254 of the directories specified in the PATH environment variable. */
2259 GET_ENV_PATH_LIST (temp
, "PATH");
2262 char *startp
, *endp
;
2263 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2265 startp
= endp
= temp
;
2268 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2273 nstore
[1] = DIR_SEPARATOR
;
2278 strncpy (nstore
, startp
, endp
- startp
);
2279 if (! IS_DIR_SEPARATOR (endp
[-1]))
2281 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2282 nstore
[endp
- startp
+ 1] = 0;
2285 nstore
[endp
- startp
] = 0;
2287 strcat (nstore
, progname
);
2288 if (! access (nstore
, X_OK
)
2289 #ifdef HAVE_EXECUTABLE_SUFFIX
2290 || ! access (strcat (nstore
, EXECUTABLE_SUFFIX
), X_OK
)
2294 free_split_directories (prog_dirs
);
2296 prog_dirs
= split_directories (progname
, &prog_num
);
2302 endp
= startp
= endp
+ 1;
2310 /* Remove the program name from comparison of directory names. */
2313 /* Determine if the compiler is installed in the standard location, and if
2314 so, we don't need to specify relative directories. Also, if argv[0]
2315 doesn't contain any directory specifiers, there is not much we can do. */
2317 if (prog_num
== bin_num
)
2319 for (i
= 0; i
< bin_num
; i
++)
2321 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2325 if (prog_num
<= 0 || i
== bin_num
)
2328 free_split_directories (prog_dirs
);
2329 free_split_directories (bin_dirs
);
2330 prog_dirs
= bin_dirs
= (char **) 0;
2335 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2337 /* Find how many directories are in common between bin_prefix & prefix. */
2338 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2339 for (common
= 0; common
< n
; common
++)
2341 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2345 /* If there are no common directories, there can be no relative prefix. */
2348 free_split_directories (prog_dirs
);
2349 free_split_directories (bin_dirs
);
2350 free_split_directories (prefix_dirs
);
2354 /* Build up the pathnames in argv[0]. */
2355 for (i
= 0; i
< prog_num
; i
++)
2356 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2358 /* Now build up the ..'s. */
2359 for (i
= common
; i
< n
; i
++)
2361 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2362 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2365 /* Put in directories to move over to prefix. */
2366 for (i
= common
; i
< prefix_num
; i
++)
2367 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2369 free_split_directories (prog_dirs
);
2370 free_split_directories (bin_dirs
);
2371 free_split_directories (prefix_dirs
);
2373 obstack_1grow (&obstack
, '\0');
2374 return obstack_finish (&obstack
);
2378 /* Check whether NAME can be accessed in MODE. This is like access,
2379 except that it never considers directories to be executable. */
2382 access_check (name
, mode
)
2390 if (stat (name
, &st
) < 0
2391 || S_ISDIR (st
.st_mode
))
2395 return access (name
, mode
);
2398 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2399 access to check permissions.
2400 Return 0 if not found, otherwise return its name, allocated with malloc. */
2403 find_a_file (pprefix
, name
, mode
)
2404 struct path_prefix
*pprefix
;
2409 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
2410 struct prefix_list
*pl
;
2411 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2413 #ifdef DEFAULT_ASSEMBLER
2414 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2415 return xstrdup (DEFAULT_ASSEMBLER
);
2418 #ifdef DEFAULT_LINKER
2419 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2420 return xstrdup (DEFAULT_LINKER
);
2424 len
+= strlen (machine_suffix
);
2426 temp
= xmalloc (len
);
2428 /* Determine the filename to execute (special case for absolute paths). */
2430 if (IS_ABSOLUTE_PATHNAME (name
))
2432 if (access (name
, mode
) == 0)
2434 strcpy (temp
, name
);
2439 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2443 /* Some systems have a suffix for executable files.
2444 So try appending that first. */
2445 if (file_suffix
[0] != 0)
2447 strcpy (temp
, pl
->prefix
);
2448 strcat (temp
, machine_suffix
);
2449 strcat (temp
, name
);
2450 strcat (temp
, file_suffix
);
2451 if (access_check (temp
, mode
) == 0)
2453 if (pl
->used_flag_ptr
!= 0)
2454 *pl
->used_flag_ptr
= 1;
2459 /* Now try just the name. */
2460 strcpy (temp
, pl
->prefix
);
2461 strcat (temp
, machine_suffix
);
2462 strcat (temp
, name
);
2463 if (access_check (temp
, mode
) == 0)
2465 if (pl
->used_flag_ptr
!= 0)
2466 *pl
->used_flag_ptr
= 1;
2471 /* Certain prefixes are tried with just the machine type,
2472 not the version. This is used for finding as, ld, etc. */
2473 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2475 /* Some systems have a suffix for executable files.
2476 So try appending that first. */
2477 if (file_suffix
[0] != 0)
2479 strcpy (temp
, pl
->prefix
);
2480 strcat (temp
, just_machine_suffix
);
2481 strcat (temp
, name
);
2482 strcat (temp
, file_suffix
);
2483 if (access_check (temp
, mode
) == 0)
2485 if (pl
->used_flag_ptr
!= 0)
2486 *pl
->used_flag_ptr
= 1;
2491 strcpy (temp
, pl
->prefix
);
2492 strcat (temp
, just_machine_suffix
);
2493 strcat (temp
, name
);
2494 if (access_check (temp
, mode
) == 0)
2496 if (pl
->used_flag_ptr
!= 0)
2497 *pl
->used_flag_ptr
= 1;
2502 /* Certain prefixes can't be used without the machine suffix
2503 when the machine or version is explicitly specified. */
2504 if (! pl
->require_machine_suffix
)
2506 /* Some systems have a suffix for executable files.
2507 So try appending that first. */
2508 if (file_suffix
[0] != 0)
2510 strcpy (temp
, pl
->prefix
);
2511 strcat (temp
, 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
, name
);
2523 if (access_check (temp
, mode
) == 0)
2525 if (pl
->used_flag_ptr
!= 0)
2526 *pl
->used_flag_ptr
= 1;
2536 /* Ranking of prefixes in the sort list. -B prefixes are put before
2539 enum path_prefix_priority
2541 PREFIX_PRIORITY_B_OPT
,
2542 PREFIX_PRIORITY_LAST
2545 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2546 order according to PRIORITY. Within each PRIORITY, new entries are
2549 If WARN is nonzero, we will warn if no file is found
2550 through this prefix. WARN should point to an int
2551 which will be set to 1 if this entry is used.
2553 COMPONENT is the value to be passed to update_path.
2555 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2556 the complete value of machine_suffix.
2557 2 means try both machine_suffix and just_machine_suffix. */
2560 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2561 struct path_prefix
*pprefix
;
2563 const char *component
;
2564 /* enum prefix_priority */ int priority
;
2565 int require_machine_suffix
;
2568 struct prefix_list
*pl
, **prev
;
2571 for (prev
= &pprefix
->plist
;
2572 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2573 prev
= &(*prev
)->next
)
2576 /* Keep track of the longest prefix */
2578 prefix
= update_path (prefix
, component
);
2579 len
= strlen (prefix
);
2580 if (len
> pprefix
->max_len
)
2581 pprefix
->max_len
= len
;
2583 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2584 pl
->prefix
= save_string (prefix
, len
);
2585 pl
->require_machine_suffix
= require_machine_suffix
;
2586 pl
->used_flag_ptr
= warn
;
2587 pl
->priority
= priority
;
2591 /* Insert after PREV */
2596 /* Execute the command specified by the arguments on the current line of spec.
2597 When using pipes, this includes several piped-together commands
2598 with `|' between them.
2600 Return 0 if successful, -1 if failed. */
2606 int n_commands
; /* # of command. */
2610 const char *prog
; /* program name. */
2611 const char **argv
; /* vector of args. */
2612 int pid
; /* pid of process for this command. */
2615 struct command
*commands
; /* each command buffer with above info. */
2617 /* Count # of piped commands. */
2618 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2619 if (strcmp (argbuf
[i
], "|") == 0)
2622 /* Get storage for each command. */
2623 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2625 /* Split argbuf into its separate piped processes,
2626 and record info about each one.
2627 Also search for the programs that are to be run. */
2629 commands
[0].prog
= argbuf
[0]; /* first command. */
2630 commands
[0].argv
= &argbuf
[0];
2631 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2634 commands
[0].argv
[0] = string
;
2636 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2637 if (strcmp (argbuf
[i
], "|") == 0)
2638 { /* each command. */
2639 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2640 fatal ("-pipe not supported");
2642 argbuf
[i
] = 0; /* termination of command args. */
2643 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2644 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2645 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2647 commands
[n_commands
].argv
[0] = string
;
2651 argbuf
[argbuf_index
] = 0;
2653 /* If -v, print what we are about to do, and maybe query. */
2657 /* For help listings, put a blank line between sub-processes. */
2658 if (print_help_list
)
2659 fputc ('\n', stderr
);
2661 /* Print each piped command as a separate line. */
2662 for (i
= 0; i
< n_commands
; i
++)
2664 const char *const *j
;
2666 for (j
= commands
[i
].argv
; *j
; j
++)
2667 fprintf (stderr
, " %s", *j
);
2669 /* Print a pipe symbol after all but the last command. */
2670 if (i
+ 1 != n_commands
)
2671 fprintf (stderr
, " |");
2672 fprintf (stderr
, "\n");
2676 notice ("\nGo ahead? (y or n) ");
2680 while (getchar () != '\n')
2683 if (i
!= 'y' && i
!= 'Y')
2688 /* Run each piped subprocess. */
2690 for (i
= 0; i
< n_commands
; i
++)
2692 char *errmsg_fmt
, *errmsg_arg
;
2693 const char *string
= commands
[i
].argv
[0];
2695 /* For some bizarre reason, the second argument of execvp() is
2696 char *const *, not const char *const *. */
2697 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2698 programname
, temp_filename
,
2699 &errmsg_fmt
, &errmsg_arg
,
2700 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2701 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2702 | (string
== commands
[i
].prog
2703 ? PEXECUTE_SEARCH
: 0)
2704 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2706 if (commands
[i
].pid
== -1)
2707 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2709 if (string
!= commands
[i
].prog
)
2710 free ((PTR
) string
);
2715 /* Wait for all the subprocesses to finish.
2716 We don't care what order they finish in;
2717 we know that N_COMMANDS waits will get them all.
2718 Ignore subprocesses that we don't know about,
2719 since they can be spawned by the process that exec'ed us. */
2723 #ifdef HAVE_GETRUSAGE
2725 double ut
= 0.0, st
= 0.0;
2728 for (i
= 0; i
< n_commands
;)
2734 pid
= pwait (commands
[i
].pid
, &status
, 0);
2738 #ifdef HAVE_GETRUSAGE
2741 /* getrusage returns the total resource usage of all children
2742 up to now. Copy the previous values into prus, get the
2743 current statistics, then take the difference. */
2746 getrusage (RUSAGE_CHILDREN
, &rus
);
2747 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2748 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2749 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2751 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2752 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2753 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2757 for (j
= 0; j
< n_commands
; j
++)
2758 if (commands
[j
].pid
== pid
)
2761 if (WIFSIGNALED (status
))
2764 /* SIGPIPE is a special case. It happens in -pipe mode
2765 when the compiler dies before the preprocessor is
2766 done, or the assembler dies before the compiler is
2767 done. There's generally been an error already, and
2768 this is just fallout. So don't generate another error
2769 unless we would otherwise have succeeded. */
2770 if (WTERMSIG (status
) == SIGPIPE
2771 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2776 Internal error: %s (program %s)\n\
2777 Please submit a full bug report.\n\
2778 See %s for instructions.",
2779 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2784 else if (WIFEXITED (status
)
2785 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2787 if (WEXITSTATUS (status
) > greatest_status
)
2788 greatest_status
= WEXITSTATUS (status
);
2791 #ifdef HAVE_GETRUSAGE
2792 if (report_times
&& ut
+ st
!= 0)
2793 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2802 /* Find all the switches given to us
2803 and make a vector describing them.
2804 The elements of the vector are strings, one per switch given.
2805 If a switch uses following arguments, then the `part1' field
2806 is the switch itself and the `args' field
2807 is a null-terminated vector containing the following arguments.
2808 The `live_cond' field is:
2810 1 if the switch is true in a conditional spec,
2811 -1 if false (overridden by a later switch)
2812 -2 if this switch should be ignored (used in %{<S})
2813 The `validated' field is nonzero if any spec has looked at this switch;
2814 if it remains zero at the end of the run, it must be meaningless. */
2817 #define SWITCH_FALSE -1
2818 #define SWITCH_IGNORE -2
2819 #define SWITCH_LIVE 1
2826 unsigned char validated
;
2827 unsigned char ordering
;
2830 static struct switchstr
*switches
;
2832 static int n_switches
;
2837 const char *language
;
2840 /* Also a vector of input files specified. */
2842 static struct infile
*infiles
;
2844 static int n_infiles
;
2846 /* This counts the number of libraries added by lang_specific_driver, so that
2847 we can tell if there were any user supplied any files or libraries. */
2849 static int added_libraries
;
2851 /* And a vector of corresponding output files is made up later. */
2853 static const char **outfiles
;
2855 /* Used to track if none of the -B paths are used. */
2858 /* Used to track if standard path isn't used and -b or -V is specified. */
2859 static int warn_std
;
2861 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2862 static int *warn_std_ptr
= 0;
2864 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2866 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2867 is true if we should look for an executable suffix as well. */
2870 convert_filename (name
, do_exe
)
2880 len
= strlen (name
);
2882 #ifdef HAVE_OBJECT_SUFFIX
2883 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2885 && name
[len
- 2] == '.'
2886 && name
[len
- 1] == 'o')
2888 obstack_grow (&obstack
, name
, len
- 2);
2889 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2890 name
= obstack_finish (&obstack
);
2894 #if defined(HAVE_EXECUTABLE_SUFFIX) && !defined(NO_AUTO_EXE_SUFFIX)
2895 /* If there is no filetype, make it the executable suffix (which includes
2896 the "."). But don't get confused if we have just "-o". */
2897 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2900 for (i
= len
- 1; i
>= 0; i
--)
2901 if (IS_DIR_SEPARATOR (name
[i
]))
2904 for (i
++; i
< len
; i
++)
2908 obstack_grow (&obstack
, name
, len
);
2909 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2910 name
= obstack_finish (&obstack
);
2917 /* Display the command line switches accepted by gcc. */
2921 printf (_("Usage: %s [options] file...\n"), programname
);
2922 fputs (_("Options:\n"), stdout
);
2924 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2925 fputs (_(" --help Display this information\n"), stdout
);
2926 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2928 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2929 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2930 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2931 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2932 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2933 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2934 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2935 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2936 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2938 -print-multi-lib Display the mapping between command line options and\n\
2939 multiple library search directories\n"), stdout
);
2940 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2941 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2942 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2943 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2944 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2945 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2946 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2947 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
2948 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2949 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2950 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2951 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2952 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2953 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2954 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2955 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2956 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2958 -x <language> Specify the language of the following input files\n\
2959 Permissable languages include: c c++ assembler none\n\
2960 'none' means revert to the default behaviour of\n\
2961 guessing the language based on the file's extension\n\
2965 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2966 passed on to the various sub-processes invoked by %s. In order to pass\n\
2967 other options on to these processes the -W<letter> options must be used.\n\
2970 /* The rest of the options are displayed by invocations of the various
2975 add_preprocessor_option (option
, len
)
2979 n_preprocessor_options
++;
2981 if (! preprocessor_options
)
2982 preprocessor_options
2983 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2985 preprocessor_options
2986 = (char **) xrealloc (preprocessor_options
,
2987 n_preprocessor_options
* sizeof (char *));
2989 preprocessor_options
[n_preprocessor_options
- 1] =
2990 save_string (option
, len
);
2994 add_assembler_option (option
, len
)
2998 n_assembler_options
++;
3000 if (! assembler_options
)
3002 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
3005 = (char **) xrealloc (assembler_options
,
3006 n_assembler_options
* sizeof (char *));
3008 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
3012 add_linker_option (option
, len
)
3018 if (! linker_options
)
3020 = (char **) xmalloc (n_linker_options
* sizeof (char *));
3023 = (char **) xrealloc (linker_options
,
3024 n_linker_options
* sizeof (char *));
3026 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
3029 /* Create the vector `switches' and its contents.
3030 Store its length in `n_switches'. */
3033 process_command (argc
, argv
)
3035 const char *const *argv
;
3040 const char *spec_lang
= 0;
3041 int last_language_n_infiles
;
3044 int lang_n_infiles
= 0;
3045 #ifdef MODIFY_TARGET_NAME
3046 int is_modify_target_name
;
3050 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3054 added_libraries
= 0;
3056 /* Figure compiler version from version string. */
3058 compiler_version
= temp1
= xstrdup (version_string
);
3060 for (; *temp1
; ++temp1
)
3069 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3070 see if we can create it from the pathname specified in argv[0]. */
3073 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3074 if (!gcc_exec_prefix
)
3076 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3077 standard_exec_prefix
);
3078 if (gcc_exec_prefix
)
3079 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL_PTR
));
3083 if (gcc_exec_prefix
)
3085 int len
= strlen (gcc_exec_prefix
);
3087 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3088 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3090 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3091 if (IS_DIR_SEPARATOR (*temp
)
3092 && strncmp (temp
+ 1, "lib", 3) == 0
3093 && IS_DIR_SEPARATOR (temp
[4])
3094 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3095 len
-= sizeof ("/lib/gcc-lib/") - 1;
3098 set_std_prefix (gcc_exec_prefix
, len
);
3099 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3100 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3101 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3102 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3105 /* COMPILER_PATH and LIBRARY_PATH have values
3106 that are lists of directory names with colons. */
3108 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3111 const char *startp
, *endp
;
3112 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3114 startp
= endp
= temp
;
3117 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3119 strncpy (nstore
, startp
, endp
- startp
);
3121 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3122 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3124 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3125 nstore
[endp
- startp
+ 1] = 0;
3128 nstore
[endp
- startp
] = 0;
3129 add_prefix (&exec_prefixes
, nstore
, 0,
3130 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3131 add_prefix (&include_prefixes
,
3132 concat (nstore
, "include", NULL_PTR
),
3133 0, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3136 endp
= startp
= endp
+ 1;
3143 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3144 if (temp
&& *cross_compile
== '0')
3146 const char *startp
, *endp
;
3147 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3149 startp
= endp
= temp
;
3152 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3154 strncpy (nstore
, startp
, endp
- startp
);
3156 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3157 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3159 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3160 nstore
[endp
- startp
+ 1] = 0;
3163 nstore
[endp
- startp
] = 0;
3164 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3165 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3168 endp
= startp
= endp
+ 1;
3175 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3176 GET_ENV_PATH_LIST (temp
, "LPATH");
3177 if (temp
&& *cross_compile
== '0')
3179 const char *startp
, *endp
;
3180 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3182 startp
= endp
= temp
;
3185 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3187 strncpy (nstore
, startp
, endp
- startp
);
3189 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3190 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3192 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3193 nstore
[endp
- startp
+ 1] = 0;
3196 nstore
[endp
- startp
] = 0;
3197 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3198 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3201 endp
= startp
= endp
+ 1;
3208 /* Convert new-style -- options to old-style. */
3209 translate_options (&argc
, &argv
);
3211 /* Do language-specific adjustment/addition of flags. */
3212 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3214 /* Scan argv twice. Here, the first time, just count how many switches
3215 there will be in their vector, and how many input files in theirs.
3216 Also parse any switches that determine the configuration name, such as -b.
3217 Here we also parse the switches that cc itself uses (e.g. -v). */
3219 for (i
= 1; i
< argc
; i
++)
3221 if (! strcmp (argv
[i
], "-dumpspecs"))
3223 struct spec_list
*sl
;
3225 for (sl
= specs
; sl
; sl
= sl
->next
)
3226 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3227 if (link_command_spec
)
3228 printf ("*link_command:\n%s\n\n", link_command_spec
);
3231 else if (! strcmp (argv
[i
], "-dumpversion"))
3233 printf ("%s\n", spec_version
);
3236 else if (! strcmp (argv
[i
], "-dumpmachine"))
3238 printf ("%s\n", spec_machine
);
3241 else if (strcmp (argv
[i
], "-fhelp") == 0)
3243 /* translate_options () has turned --help into -fhelp. */
3244 print_help_list
= 1;
3246 /* We will be passing a dummy file on to the sub-processes. */
3250 add_preprocessor_option ("--help", 6);
3251 add_assembler_option ("--help", 6);
3252 add_linker_option ("--help", 6);
3254 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3256 /* translate_options() has turned --target-help into -ftarget-help. */
3257 target_help_flag
= 1;
3259 /* We will be passing a dummy file on to the sub-processes. */
3263 add_preprocessor_option ("--target-help", 13);
3264 add_assembler_option ("--target-help", 13);
3265 add_linker_option ("--target-help", 13);
3267 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3269 pass_exit_codes
= 1;
3272 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3273 print_search_dirs
= 1;
3274 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3275 print_file_name
= "libgcc.a";
3276 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3277 print_file_name
= argv
[i
] + 17;
3278 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3279 print_prog_name
= argv
[i
] + 17;
3280 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3281 print_multi_lib
= 1;
3282 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3283 print_multi_directory
= 1;
3284 else if (! strncmp (argv
[i
], "-Wa,", 4))
3287 /* Pass the rest of this option to the assembler. */
3289 /* Split the argument at commas. */
3291 for (j
= 4; argv
[i
][j
]; j
++)
3292 if (argv
[i
][j
] == ',')
3294 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3298 /* Record the part after the last comma. */
3299 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3301 else if (! strncmp (argv
[i
], "-Wp,", 4))
3304 /* Pass the rest of this option to the preprocessor. */
3306 /* Split the argument at commas. */
3308 for (j
= 4; argv
[i
][j
]; j
++)
3309 if (argv
[i
][j
] == ',')
3311 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3315 /* Record the part after the last comma. */
3316 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3318 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3319 /* The +e options to the C++ front-end. */
3321 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3324 /* Split the argument at commas. */
3325 for (j
= 3; argv
[i
][j
]; j
++)
3326 n_infiles
+= (argv
[i
][j
] == ',');
3328 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3331 fatal ("argument to `-Xlinker' is missing");
3336 else if (strncmp (argv
[i
], "-l", 2) == 0)
3338 else if (strcmp (argv
[i
], "-save-temps") == 0)
3340 save_temps_flag
= 1;
3343 else if (strcmp (argv
[i
], "-specs") == 0)
3345 struct user_specs
*user
= (struct user_specs
*)
3346 xmalloc (sizeof (struct user_specs
));
3348 fatal ("argument to `-specs' is missing");
3350 user
->next
= (struct user_specs
*) 0;
3351 user
->filename
= argv
[i
];
3352 if (user_specs_tail
)
3353 user_specs_tail
->next
= user
;
3355 user_specs_head
= user
;
3356 user_specs_tail
= user
;
3358 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3360 struct user_specs
*user
= (struct user_specs
*)
3361 xmalloc (sizeof (struct user_specs
));
3362 if (strlen (argv
[i
]) == 7)
3363 fatal ("argument to `-specs=' is missing");
3365 user
->next
= (struct user_specs
*) 0;
3366 user
->filename
= argv
[i
] + 7;
3367 if (user_specs_tail
)
3368 user_specs_tail
->next
= user
;
3370 user_specs_head
= user
;
3371 user_specs_tail
= user
;
3373 else if (strcmp (argv
[i
], "-time") == 0)
3375 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3377 register const char *p
= &argv
[i
][1];
3378 register int c
= *p
;
3384 if (p
[1] == 0 && i
+ 1 == argc
)
3385 fatal ("argument to `-b' is missing");
3387 spec_machine
= argv
[++i
];
3389 spec_machine
= p
+ 1;
3391 warn_std_ptr
= &warn_std
;
3397 if (p
[1] == 0 && i
+ 1 == argc
)
3398 fatal ("argument to `-B' is missing");
3404 /* As a kludge, if the arg is "[foo/]stageN/", just
3405 add "[foo/]include" to the include prefix. */
3406 int len
= strlen (value
);
3409 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3410 && strncmp (value
+ len
- 7, "stage", 5) == 0
3411 && ISDIGIT (value
[len
- 2])
3412 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3415 add_prefix (&include_prefixes
, "include", NULL_PTR
,
3416 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3419 char *string
= xmalloc (len
+ 1);
3420 strncpy (string
, value
, len
-7);
3421 strcpy (string
+len
-7, "include");
3422 add_prefix (&include_prefixes
, string
, NULL_PTR
,
3423 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3427 add_prefix (&exec_prefixes
, value
, NULL_PTR
,
3428 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3429 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
3430 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3431 add_prefix (&include_prefixes
, concat (value
, "include",
3434 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3439 case 'v': /* Print our subcommands and print versions. */
3441 /* If they do anything other than exactly `-v', don't set
3442 verbose_flag; rather, continue on to give the error. */
3450 if (p
[1] == 0 && i
+ 1 == argc
)
3451 fatal ("argument to `-V' is missing");
3453 spec_version
= argv
[++i
];
3455 spec_version
= p
+ 1;
3456 compiler_version
= spec_version
;
3457 warn_std_ptr
= &warn_std
;
3459 /* Validate the version number. Use the same checks
3460 done when inserting it into a spec.
3462 The format of the version string is
3463 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3465 const char *v
= compiler_version
;
3467 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3468 while (! ISDIGIT (*v
))
3471 if (v
> compiler_version
&& v
[-1] != '-')
3472 fatal ("invalid version number format");
3474 /* Set V after the first period. */
3475 while (ISDIGIT (*v
))
3479 fatal ("invalid version number format");
3482 while (ISDIGIT (*v
))
3485 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3486 fatal ("invalid version number format");
3502 #if defined(HAVE_EXECUTABLE_SUFFIX)
3507 /* Forward scan, just in case -S or -c is specified
3514 if (argv
[j
][0] == '-')
3516 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3522 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3523 j
+= skip
- (argv
[j
][2] != 0);
3524 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3531 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3533 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3535 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3542 #ifdef MODIFY_TARGET_NAME
3543 is_modify_target_name
= 0;
3546 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3547 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3550 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3551 + strlen (spec_machine
));
3554 int made_addition
= 0;
3556 is_modify_target_name
= 1;
3557 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3559 if (modify_target
[j
].add_del
== DELETE
3560 && (! strncmp (q
, modify_target
[j
].str
,
3561 strlen (modify_target
[j
].str
))))
3562 p
+= strlen (modify_target
[j
].str
);
3563 else if (modify_target
[j
].add_del
== ADD
3564 && ! made_addition
&& *p
== '-')
3566 for (r
= modify_target
[j
].str
; *r
!= 0; )
3574 spec_machine
= new_name
;
3577 if (is_modify_target_name
)
3583 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3584 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3585 else if (WORD_SWITCH_TAKES_ARG (p
))
3586 i
+= WORD_SWITCH_TAKES_ARG (p
);
3596 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3597 fatal ("cannot specify -o with -c or -S and multiple compilations");
3599 /* Set up the search paths before we go looking for config files. */
3601 /* These come before the md prefixes so that we will find gcc's subcommands
3602 (such as cpp) rather than those of the host system. */
3603 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3604 as well as trying the machine and the version. */
3606 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3607 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3608 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3609 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3610 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3611 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3614 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3615 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3616 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3617 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3619 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3620 dir_separator_str
, NULL_PTR
);
3622 /* If tooldir is relative, base it on exec_prefixes. A relative
3623 tooldir lets us move the installed tree as a unit.
3625 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3626 directories, so that we can search both the user specified directory
3627 and the standard place. */
3629 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3631 if (gcc_exec_prefix
)
3633 char *gcc_exec_tooldir_prefix
3634 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3635 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3637 add_prefix (&exec_prefixes
,
3638 concat (gcc_exec_tooldir_prefix
, "bin",
3639 dir_separator_str
, NULL_PTR
),
3640 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3641 add_prefix (&startfile_prefixes
,
3642 concat (gcc_exec_tooldir_prefix
, "lib",
3643 dir_separator_str
, NULL_PTR
),
3644 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3647 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3648 dir_separator_str
, spec_version
,
3649 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3652 add_prefix (&exec_prefixes
,
3653 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3654 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3655 add_prefix (&startfile_prefixes
,
3656 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3657 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3659 /* More prefixes are enabled in main, after we read the specs file
3660 and determine whether this is cross-compilation or not. */
3662 /* Then create the space for the vectors and scan again. */
3664 switches
= ((struct switchstr
*)
3665 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3666 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3669 last_language_n_infiles
= -1;
3671 /* This, time, copy the text of each switch and store a pointer
3672 to the copy in the vector of switches.
3673 Store all the infiles in their vector. */
3675 for (i
= 1; i
< argc
; i
++)
3677 /* Just skip the switches that were handled by the preceding loop. */
3678 #ifdef MODIFY_TARGET_NAME
3679 is_modify_target_name
= 0;
3681 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3682 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3683 is_modify_target_name
= 1;
3685 if (is_modify_target_name
)
3689 if (! strncmp (argv
[i
], "-Wa,", 4))
3691 else if (! strncmp (argv
[i
], "-Wp,", 4))
3693 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3695 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3697 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3699 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3701 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3703 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3705 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3707 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3709 /* Create a dummy input file, so that we can pass --target-help on to
3710 the various sub-processes. */
3711 infiles
[n_infiles
].language
= "c";
3712 infiles
[n_infiles
++].name
= "target-dummy";
3714 /* Preserve the --target-help switch so that it can be caught by
3715 the cc1 spec string. */
3716 switches
[n_switches
].part1
= "--target-help";
3717 switches
[n_switches
].args
= 0;
3718 switches
[n_switches
].live_cond
= SWITCH_OK
;
3719 switches
[n_switches
].validated
= 0;
3723 else if (strcmp (argv
[i
], "-fhelp") == 0)
3727 /* Create a dummy input file, so that we can pass --help on to
3728 the various sub-processes. */
3729 infiles
[n_infiles
].language
= "c";
3730 infiles
[n_infiles
++].name
= "help-dummy";
3732 /* Preserve the --help switch so that it can be caught by the
3734 switches
[n_switches
].part1
= "--help";
3735 switches
[n_switches
].args
= 0;
3736 switches
[n_switches
].live_cond
= SWITCH_OK
;
3737 switches
[n_switches
].validated
= 0;
3742 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3744 /* Compensate for the +e options to the C++ front-end;
3745 they're there simply for cfront call-compatibility. We do
3746 some magic in default_compilers to pass them down properly.
3747 Note we deliberately start at the `+' here, to avoid passing
3748 -e0 or -e1 down into the linker. */
3749 switches
[n_switches
].part1
= &argv
[i
][0];
3750 switches
[n_switches
].args
= 0;
3751 switches
[n_switches
].live_cond
= SWITCH_OK
;
3752 switches
[n_switches
].validated
= 0;
3755 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3758 /* Split the argument at commas. */
3760 for (j
= 4; argv
[i
][j
]; j
++)
3761 if (argv
[i
][j
] == ',')
3763 infiles
[n_infiles
].language
= "*";
3764 infiles
[n_infiles
++].name
3765 = save_string (argv
[i
] + prev
, j
- prev
);
3768 /* Record the part after the last comma. */
3769 infiles
[n_infiles
].language
= "*";
3770 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3772 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3774 infiles
[n_infiles
].language
= "*";
3775 infiles
[n_infiles
++].name
= argv
[++i
];
3777 else if (strncmp (argv
[i
], "-l", 2) == 0)
3779 infiles
[n_infiles
].language
= "*";
3780 infiles
[n_infiles
++].name
= argv
[i
];
3782 else if (strcmp (argv
[i
], "-specs") == 0)
3784 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3786 else if (strcmp (argv
[i
], "-time") == 0)
3788 else if ((save_temps_flag
|| report_times
)
3789 && strcmp (argv
[i
], "-pipe") == 0)
3791 /* -save-temps overrides -pipe, so that temp files are produced */
3792 if (save_temps_flag
)
3793 error ("Warning: -pipe ignored because -save-temps specified");
3794 /* -time overrides -pipe because we can't get correct stats when
3795 multiple children are running at once. */
3796 else if (report_times
)
3797 error ("Warning: -pipe ignored because -time specified");
3799 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3801 const char *p
= &argv
[i
][1];
3806 if (p
[1] == 0 && i
+ 1 == argc
)
3807 fatal ("argument to `-x' is missing");
3809 spec_lang
= argv
[++i
];
3812 if (! strcmp (spec_lang
, "none"))
3813 /* Suppress the warning if -xnone comes after the last input
3814 file, because alternate command interfaces like g++ might
3815 find it useful to place -xnone after each input file. */
3818 last_language_n_infiles
= n_infiles
;
3821 switches
[n_switches
].part1
= p
;
3822 /* Deal with option arguments in separate argv elements. */
3823 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3824 || WORD_SWITCH_TAKES_ARG (p
))
3827 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3831 /* Count only the option arguments in separate argv elements. */
3832 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3834 if (i
+ n_args
>= argc
)
3835 fatal ("argument to `-%s' is missing", p
);
3836 switches
[n_switches
].args
3837 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3839 switches
[n_switches
].args
[j
++] = argv
[++i
];
3840 /* Null-terminate the vector. */
3841 switches
[n_switches
].args
[j
] = 0;
3843 else if (strchr (switches_need_spaces
, c
))
3845 /* On some systems, ld cannot handle some options without
3846 a space. So split the option from its argument. */
3847 char *part1
= (char *) xmalloc (2);
3852 switches
[n_switches
].part1
= part1
;
3853 switches
[n_switches
].args
3854 = (const char **) xmalloc (2 * sizeof (const char *));
3855 switches
[n_switches
].args
[0] = tmp
= xmalloc (strlen (p
));
3856 strcpy (tmp
, &p
[1]);
3857 switches
[n_switches
].args
[1] = 0;
3860 switches
[n_switches
].args
= 0;
3862 switches
[n_switches
].live_cond
= SWITCH_OK
;
3863 switches
[n_switches
].validated
= 0;
3864 switches
[n_switches
].ordering
= 0;
3865 /* These are always valid, since gcc.c itself understands it. */
3866 if (!strcmp (p
, "save-temps")
3867 || !strcmp (p
, "static-libgcc")
3868 || !strcmp (p
, "shared-libgcc"))
3869 switches
[n_switches
].validated
= 1;
3872 char ch
= switches
[n_switches
].part1
[0];
3873 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3874 switches
[n_switches
].validated
= 1;
3880 #ifdef HAVE_OBJECT_SUFFIX
3881 argv
[i
] = convert_filename (argv
[i
], 0);
3884 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
3886 perror_with_name (argv
[i
]);
3891 infiles
[n_infiles
].language
= spec_lang
;
3892 infiles
[n_infiles
++].name
= argv
[i
];
3897 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3898 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3900 switches
[n_switches
].part1
= 0;
3901 infiles
[n_infiles
].name
= 0;
3904 /* Process a spec string, accumulating and running commands. */
3906 /* These variables describe the input file name.
3907 input_file_number is the index on outfiles of this file,
3908 so that the output file name can be stored for later use by %o.
3909 input_basename is the start of the part of the input file
3910 sans all directory names, and basename_length is the number
3911 of characters starting there excluding the suffix .c or whatever. */
3913 const char *input_filename
;
3914 static int input_file_number
;
3915 size_t input_filename_length
;
3916 static int basename_length
;
3917 static int suffixed_basename_length
;
3918 static const char *input_basename
;
3919 static const char *input_suffix
;
3921 /* The compiler used to process the current input file. */
3922 static struct compiler
*input_file_compiler
;
3924 /* These are variables used within do_spec and do_spec_1. */
3926 /* Nonzero if an arg has been started and not yet terminated
3927 (with space, tab or newline). */
3928 static int arg_going
;
3930 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3931 is a temporary file name. */
3932 static int delete_this_arg
;
3934 /* Nonzero means %w has been seen; the next arg to be terminated
3935 is the output file name of this compilation. */
3936 static int this_is_output_file
;
3938 /* Nonzero means %s has been seen; the next arg to be terminated
3939 is the name of a library file and we should try the standard
3940 search dirs for it. */
3941 static int this_is_library_file
;
3943 /* Nonzero means that the input of this command is coming from a pipe. */
3944 static int input_from_pipe
;
3946 /* Nonnull means substitute this for any suffix when outputting a switches
3948 static const char *suffix_subst
;
3950 /* Process the spec SPEC and run the commands specified therein.
3951 Returns 0 if the spec is successfully processed; -1 if failed. */
3961 delete_this_arg
= 0;
3962 this_is_output_file
= 0;
3963 this_is_library_file
= 0;
3964 input_from_pipe
= 0;
3965 suffix_subst
= NULL
;
3967 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3969 /* Force out any unfinished command.
3970 If -pipe, this forces out the last command if it ended in `|'. */
3973 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3976 if (argbuf_index
> 0)
3983 /* Process the sub-spec SPEC as a portion of a larger spec.
3984 This is like processing a whole spec except that we do
3985 not initialize at the beginning and we do not supply a
3986 newline by default at the end.
3987 INSWITCH nonzero means don't process %-sequences in SPEC;
3988 in this case, % is treated as an ordinary character.
3989 This is used while substituting switches.
3990 INSWITCH nonzero also causes SPC not to terminate an argument.
3992 Value is zero unless a line was finished
3993 and the command on that line reported an error. */
3996 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3999 const char *soft_matched_part
;
4001 register const char *p
= spec
;
4008 /* If substituting a switch, treat all chars like letters.
4009 Otherwise, NL, SPC, TAB and % are special. */
4010 switch (inswitch
? 'a' : c
)
4013 /* End of line: finish any pending argument,
4014 then run the pending command if one has been started. */
4017 obstack_1grow (&obstack
, 0);
4018 string
= obstack_finish (&obstack
);
4019 if (this_is_library_file
)
4020 string
= find_file (string
);
4021 store_arg (string
, delete_this_arg
, this_is_output_file
);
4022 if (this_is_output_file
)
4023 outfiles
[input_file_number
] = string
;
4027 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4029 for (i
= 0; i
< n_switches
; i
++)
4030 if (!strcmp (switches
[i
].part1
, "pipe"))
4033 /* A `|' before the newline means use a pipe here,
4034 but only if -pipe was specified.
4035 Otherwise, execute now and don't pass the `|' as an arg. */
4038 input_from_pipe
= 1;
4039 switches
[i
].validated
= 1;
4046 if (argbuf_index
> 0)
4052 /* Reinitialize for a new command, and for a new argument. */
4055 delete_this_arg
= 0;
4056 this_is_output_file
= 0;
4057 this_is_library_file
= 0;
4058 input_from_pipe
= 0;
4062 /* End any pending argument. */
4065 obstack_1grow (&obstack
, 0);
4066 string
= obstack_finish (&obstack
);
4067 if (this_is_library_file
)
4068 string
= find_file (string
);
4069 store_arg (string
, delete_this_arg
, this_is_output_file
);
4070 if (this_is_output_file
)
4071 outfiles
[input_file_number
] = string
;
4075 obstack_1grow (&obstack
, c
);
4081 /* Space or tab ends an argument if one is pending. */
4084 obstack_1grow (&obstack
, 0);
4085 string
= obstack_finish (&obstack
);
4086 if (this_is_library_file
)
4087 string
= find_file (string
);
4088 store_arg (string
, delete_this_arg
, this_is_output_file
);
4089 if (this_is_output_file
)
4090 outfiles
[input_file_number
] = string
;
4092 /* Reinitialize for a new argument. */
4094 delete_this_arg
= 0;
4095 this_is_output_file
= 0;
4096 this_is_library_file
= 0;
4103 fatal ("Invalid specification! Bug in cc.");
4106 obstack_grow (&obstack
, input_basename
, basename_length
);
4111 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4116 delete_this_arg
= 2;
4119 /* Dump out the directories specified with LIBRARY_PATH,
4120 followed by the absolute directories
4121 that we search for startfiles. */
4124 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4125 size_t bufsize
= 100;
4126 char *buffer
= (char *) xmalloc (bufsize
);
4129 for (; pl
; pl
= pl
->next
)
4131 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4132 /* Used on systems which record the specified -L dirs
4133 and use them to search for dynamic linking. */
4134 /* Relative directories always come from -B,
4135 and it is better not to use them for searching
4136 at run time. In particular, stage1 loses. */
4137 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4140 /* Try subdirectory if there is one. */
4141 if (multilib_dir
!= NULL
)
4145 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4147 bufsize
= (strlen (pl
->prefix
)
4148 + strlen (machine_suffix
)) * 2 + 1;
4149 buffer
= (char *) xrealloc (buffer
, bufsize
);
4150 strcpy (buffer
, pl
->prefix
);
4151 strcat (buffer
, machine_suffix
);
4152 if (is_directory (buffer
, multilib_dir
, 1))
4154 do_spec_1 ("-L", 0, NULL_PTR
);
4155 #ifdef SPACE_AFTER_L_OPTION
4156 do_spec_1 (" ", 0, NULL_PTR
);
4158 do_spec_1 (buffer
, 1, NULL_PTR
);
4159 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
4160 /* Make this a separate argument. */
4161 do_spec_1 (" ", 0, NULL_PTR
);
4164 if (!pl
->require_machine_suffix
)
4166 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4168 do_spec_1 ("-L", 0, NULL_PTR
);
4169 #ifdef SPACE_AFTER_L_OPTION
4170 do_spec_1 (" ", 0, NULL_PTR
);
4172 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4173 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
4174 /* Make this a separate argument. */
4175 do_spec_1 (" ", 0, NULL_PTR
);
4181 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4183 do_spec_1 ("-L", 0, NULL_PTR
);
4184 #ifdef SPACE_AFTER_L_OPTION
4185 do_spec_1 (" ", 0, NULL_PTR
);
4187 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4188 /* Remove slash from machine_suffix. */
4189 if (strlen (machine_suffix
) >= bufsize
)
4190 bufsize
= strlen (machine_suffix
) * 2 + 1;
4191 buffer
= (char *) xrealloc (buffer
, bufsize
);
4192 strcpy (buffer
, machine_suffix
);
4193 idx
= strlen (buffer
);
4194 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4195 buffer
[idx
- 1] = 0;
4196 do_spec_1 (buffer
, 1, NULL_PTR
);
4197 /* Make this a separate argument. */
4198 do_spec_1 (" ", 0, NULL_PTR
);
4201 if (!pl
->require_machine_suffix
)
4203 if (is_directory (pl
->prefix
, "", 1))
4205 do_spec_1 ("-L", 0, NULL_PTR
);
4206 #ifdef SPACE_AFTER_L_OPTION
4207 do_spec_1 (" ", 0, NULL_PTR
);
4209 /* Remove slash from pl->prefix. */
4210 if (strlen (pl
->prefix
) >= bufsize
)
4211 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4212 buffer
= (char *) xrealloc (buffer
, bufsize
);
4213 strcpy (buffer
, pl
->prefix
);
4214 idx
= strlen (buffer
);
4215 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4216 buffer
[idx
- 1] = 0;
4217 do_spec_1 (buffer
, 1, NULL_PTR
);
4218 /* Make this a separate argument. */
4219 do_spec_1 (" ", 0, NULL_PTR
);
4228 /* %efoo means report an error with `foo' as error message
4229 and don't execute any more commands for this file. */
4233 while (*p
!= 0 && *p
!= '\n')
4235 buf
= (char *) alloca (p
- q
+ 1);
4236 strncpy (buf
, q
, p
- q
);
4243 /* %nfoo means report an notice with `foo' on stderr. */
4247 while (*p
!= 0 && *p
!= '\n')
4249 buf
= (char *) alloca (p
- q
+ 1);
4250 strncpy (buf
, q
, p
- q
);
4252 notice ("%s\n", buf
);
4262 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4263 and it is not a directory, and it is writable, use it.
4264 Otherwise, fall through and treat this like any other
4267 if ((!save_temps_flag
)
4268 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4269 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4271 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4272 strlen (HOST_BIT_BUCKET
));
4273 delete_this_arg
= 0;
4281 if (save_temps_flag
)
4283 obstack_grow (&obstack
, input_basename
, basename_length
);
4284 delete_this_arg
= 0;
4288 struct temp_name
*t
;
4290 const char *suffix
= p
;
4291 char *saved_suffix
= NULL
;
4293 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4295 suffix_length
= p
- suffix
;
4296 if (p
[0] == '%' && p
[1] == 'O')
4299 /* We don't support extra suffix characters after %O. */
4300 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4302 if (suffix_length
== 0)
4303 suffix
= OBJECT_SUFFIX
;
4307 = (char *) xmalloc (suffix_length
4308 + strlen (OBJECT_SUFFIX
));
4309 strncpy (saved_suffix
, suffix
, suffix_length
);
4310 strcpy (saved_suffix
+ suffix_length
,
4313 suffix_length
+= strlen (OBJECT_SUFFIX
);
4316 /* See if we already have an association of %g/%u/%U and
4318 for (t
= temp_names
; t
; t
= t
->next
)
4319 if (t
->length
== suffix_length
4320 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4321 && t
->unique
== (c
!= 'g'))
4324 /* Make a new association if needed. %u and %j require one. */
4325 if (t
== 0 || c
== 'u' || c
== 'j')
4329 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4330 t
->next
= temp_names
;
4333 t
->length
= suffix_length
;
4334 t
->suffix
= save_string (suffix
, suffix_length
);
4335 t
->unique
= (c
!= 'g');
4336 temp_filename
= make_temp_file (t
->suffix
);
4337 temp_filename_length
= strlen (temp_filename
);
4338 t
->filename
= temp_filename
;
4339 t
->filename_length
= temp_filename_length
;
4343 free (saved_suffix
);
4345 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4346 delete_this_arg
= 1;
4352 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4358 struct prefix_list
*pl
= include_prefixes
.plist
;
4360 if (gcc_exec_prefix
)
4362 do_spec_1 ("-iprefix", 1, NULL_PTR
);
4363 /* Make this a separate argument. */
4364 do_spec_1 (" ", 0, NULL_PTR
);
4365 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
4366 do_spec_1 (" ", 0, NULL_PTR
);
4369 for (; pl
; pl
= pl
->next
)
4371 do_spec_1 ("-isystem", 1, NULL_PTR
);
4372 /* Make this a separate argument. */
4373 do_spec_1 (" ", 0, NULL_PTR
);
4374 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4375 do_spec_1 (" ", 0, NULL_PTR
);
4382 int max
= n_infiles
;
4383 max
+= lang_specific_extra_outfiles
;
4385 for (i
= 0; i
< max
; i
++)
4387 store_arg (outfiles
[i
], 0, 0);
4392 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
4397 this_is_library_file
= 1;
4401 this_is_output_file
= 1;
4406 int cur_index
= argbuf_index
;
4407 /* Handle the {...} following the %W. */
4410 p
= handle_braces (p
+ 1);
4413 /* If any args were output, mark the last one for deletion
4415 if (argbuf_index
!= cur_index
)
4416 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4420 /* %x{OPTION} records OPTION for %X to output. */
4426 /* Skip past the option value and make a copy. */
4431 string
= save_string (p1
+ 1, p
- p1
- 2);
4433 /* See if we already recorded this option. */
4434 for (i
= 0; i
< n_linker_options
; i
++)
4435 if (! strcmp (string
, linker_options
[i
]))
4441 /* This option is new; add it. */
4442 add_linker_option (string
, strlen (string
));
4446 /* Dump out the options accumulated previously using %x. */
4448 for (i
= 0; i
< n_linker_options
; i
++)
4450 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
4451 /* Make each accumulated option a separate argument. */
4452 do_spec_1 (" ", 0, NULL_PTR
);
4456 /* Dump out the options accumulated previously using -Wa,. */
4458 for (i
= 0; i
< n_assembler_options
; i
++)
4460 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
4461 /* Make each accumulated option a separate argument. */
4462 do_spec_1 (" ", 0, NULL_PTR
);
4466 /* Dump out the options accumulated previously using -Wp,. */
4468 for (i
= 0; i
< n_preprocessor_options
; i
++)
4470 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
4471 /* Make each accumulated option a separate argument. */
4472 do_spec_1 (" ", 0, NULL_PTR
);
4476 /* Here are digits and numbers that just process
4477 a certain constant string as a spec. */
4480 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
4486 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
4492 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
4498 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
4504 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
4512 = (input_file_compiler
->cpp_spec
4513 ? input_file_compiler
->cpp_spec
4515 value
= do_spec_1 (spec
, 0, NULL_PTR
);
4522 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
4528 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
4534 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
4540 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
4546 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4552 len
= strlen (multilib_dir
);
4553 obstack_blank (&obstack
, len
+ 1);
4554 p
= obstack_next_free (&obstack
) - (len
+ 1);
4557 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4558 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4564 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4568 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4572 if (! strncmp (y
, "-D", 2))
4573 /* Copy the whole option. */
4574 while (*y
&& *y
!= ' ' && *y
!= '\t')
4576 else if (*y
== ' ' || *y
== '\t')
4577 /* Copy whitespace to the result. */
4579 /* Don't copy other options. */
4586 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4594 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4598 /* Copy all of CPP_PREDEFINES into BUF,
4599 but force them all into the reserved name space if they
4600 aren't already there. The reserved name space is all
4601 identifiers beginning with two underscores or with one
4602 underscore and a capital letter. We do the forcing by
4603 adding up to two underscores to the beginning and end
4604 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4609 if (! strncmp (y
, "-D", 2))
4618 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4620 /* Stick __ at front of macro name. */
4624 /* Arrange to stick __ at the end as well. */
4628 /* Copy the macro name. */
4629 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4642 /* Copy the value given, if any. */
4643 while (*y
&& *y
!= ' ' && *y
!= '\t')
4646 else if (*y
== ' ' || *y
== '\t')
4647 /* Copy whitespace to the result. */
4649 /* Don't copy -A options */
4655 /* Copy all of CPP_PREDEFINES into BUF,
4656 but put __ after every -D. */
4660 if (! strncmp (y
, "-D", 2))
4666 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4668 /* Stick -D__ at front of macro name. */
4675 /* Copy the macro name. */
4676 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4679 /* Copy the value given, if any. */
4680 while (*y
&& *y
!= ' ' && *y
!= '\t')
4685 /* Do not copy this macro - we have just done it before */
4686 while (*y
&& *y
!= ' ' && *y
!= '\t')
4690 else if (*y
== ' ' || *y
== '\t')
4691 /* Copy whitespace to the result. */
4693 /* Don't copy -A options. */
4699 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4703 if (! strncmp (y
, "-A", 2))
4704 /* Copy the whole option. */
4705 while (*y
&& *y
!= ' ' && *y
!= '\t')
4707 else if (*y
== ' ' || *y
== '\t')
4708 /* Copy whitespace to the result. */
4710 /* Don't copy other options. */
4717 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4724 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4729 /* Here we define characters other than letters and digits. */
4732 p
= handle_braces (p
);
4738 obstack_1grow (&obstack
, '%');
4745 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
4747 suffix_subst
= save_string (p
- 1, len
+ 1);
4753 if (soft_matched_part
)
4755 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4756 do_spec_1 (" ", 0, NULL_PTR
);
4759 /* Catch the case where a spec string contains something like
4760 '%{foo:%*}'. ie there is no * in the pattern on the left
4761 hand side of the :. */
4762 error ("Spec failure: '%%*' has not been initialised by pattern match");
4765 /* Process a string found as the value of a spec given by name.
4766 This feature allows individual machine descriptions
4767 to add and use their own specs.
4768 %[...] modifies -D options the way %P does;
4769 %(...) uses the spec unmodified. */
4771 error ("Warning: use of obsolete %%[ operator in specs");
4774 const char *name
= p
;
4775 struct spec_list
*sl
;
4778 /* The string after the S/P is the name of a spec that is to be
4780 while (*p
&& *p
!= ')' && *p
!= ']')
4783 /* See if it's in the list. */
4784 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4785 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4787 name
= *(sl
->ptr_spec
);
4789 notice ("Processing spec %c%s%c, which is '%s'\n",
4790 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4799 value
= do_spec_1 (name
, 0, NULL_PTR
);
4805 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4807 const char *y
= name
;
4810 /* Copy all of NAME into BUF, but put __ after
4811 every -D and at the end of each arg. */
4814 if (! strncmp (y
, "-D", 2))
4825 && (*y
== ' ' || *y
== '\t' || *y
== '='
4826 || *y
== '}' || *y
== 0))
4839 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4845 /* Discard the closing paren or bracket. */
4853 int c1
= *p
++; /* Select first or second version number. */
4854 const char *v
= compiler_version
;
4856 static const char zeroc
= '0';
4858 /* The format of the version string is
4859 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4861 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4862 while (! ISDIGIT (*v
))
4864 if (v
> compiler_version
&& v
[-1] != '-')
4867 /* If desired, advance to second version number. */
4870 /* Set V after the first period. */
4871 while (ISDIGIT (*v
))
4878 /* If desired, advance to third version number.
4879 But don't complain if it's not present */
4882 /* Set V after the second period. */
4883 while (ISDIGIT (*v
))
4885 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4891 /* Set Q at the next period or at the end. */
4893 while (ISDIGIT (*q
))
4895 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4899 /* Put that part into the command. */
4900 obstack_grow (&obstack
, v
, q
- v
);
4902 /* Default to "0" */
4903 obstack_grow (&obstack
, &zeroc
, 1);
4909 if (input_from_pipe
)
4910 do_spec_1 ("-", 0, NULL_PTR
);
4914 error ("Spec failure: Unrecognised spec option '%c'", c
);
4920 /* Backslash: treat next character as ordinary. */
4925 /* Ordinary character: put it into the current argument. */
4926 obstack_1grow (&obstack
, c
);
4930 /* End of string. */
4934 /* Return 0 if we call do_spec_1 and that returns -1. */
4938 register const char *p
;
4940 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4942 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4945 int include_blanks
= 1;
4946 int elide_switch
= 0;
4951 /* A '^' after the open-brace means to not give blanks before args. */
4958 /* A `|' after the open-brace means,
4959 if the test fails, output a single minus sign rather than nothing.
4960 This is used in %{|!pipe:...}. */
4967 /* A `<' after the open-brace means that the switch should be
4968 removed from the command-line. */
4974 negate
= suffix
= 0;
4977 /* A `!' after the open-brace negates the condition:
4978 succeed if the specified switch is not present. */
4982 /* A `.' after the open-brace means test against the current suffix. */
4991 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
4993 /* It doesn't make sense to mix elision with other flags. We
4994 could fatal() here, but the standard seems to be to abort. */
5000 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
5003 if (*p
== '|' && (pipe_p
|| ordered
))
5008 if (*p
!= '}' && *p
!= '&')
5010 register int count
= 1;
5011 register const char *q
= p
;
5030 body
= p
, endbody
= p
+ 1;
5035 int found
= (input_suffix
!= 0
5036 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5037 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5043 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
5046 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5048 /* Substitute all matching switches as separate args. */
5051 for (i
= 0; i
< n_switches
; i
++)
5052 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5053 && check_live_switch (i
, p
- 1 - filter
))
5057 switches
[i
].live_cond
= SWITCH_IGNORE
;
5058 switches
[i
].validated
= 1;
5061 ordered
= 1, switches
[i
].ordering
= 1;
5066 /* Test for presence of the specified switch. */
5070 /* If name specified ends in *, as in {x*:...},
5071 check for %* and handle that case. */
5072 if (p
[-1] == '*' && !negate
)
5075 const char *r
= body
;
5077 /* First see whether we have %*. */
5081 if (*r
== '%' && r
[1] == '*')
5085 /* If we do, handle that case. */
5088 /* Substitute all matching switches as separate args.
5089 But do this by substituting for %*
5090 in the text that follows the colon. */
5092 unsigned hard_match_len
= p
- filter
- 1;
5093 char *string
= save_string (body
, endbody
- body
- 1);
5095 for (i
= 0; i
< n_switches
; i
++)
5096 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5097 && check_live_switch (i
, -1))
5099 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5100 /* Pass any arguments this switch has. */
5101 give_switch (i
, 1, 1);
5102 suffix_subst
= NULL
;
5105 /* We didn't match. Try again. */
5112 /* If name specified ends in *, as in {x*:...},
5113 check for presence of any switch name starting with x. */
5116 for (i
= 0; i
< n_switches
; i
++)
5118 unsigned hard_match_len
= p
- filter
- 1;
5120 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5121 && check_live_switch (i
, hard_match_len
))
5128 /* Otherwise, check for presence of exact name specified. */
5131 for (i
= 0; i
< n_switches
; i
++)
5133 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5134 && switches
[i
].part1
[p
- filter
] == 0
5135 && check_live_switch (i
, -1))
5143 /* If it is as desired (present for %{s...}, absent for %{!s...})
5144 then substitute either the switch or the specified
5145 conditional text. */
5146 if (present
!= negate
)
5150 switches
[i
].live_cond
= SWITCH_IGNORE
;
5151 switches
[i
].validated
= 1;
5153 else if (ordered
|| *p
== '&')
5154 ordered
= 1, switches
[i
].ordering
= 1;
5156 give_switch (i
, 0, include_blanks
);
5158 /* Even if many alternatives are matched, only output once. */
5163 /* Here if a %{|...} conditional fails: output a minus sign,
5164 which means "standard output" or "standard input". */
5165 do_spec_1 ("-", 0, NULL_PTR
);
5170 /* We didn't match; try again. */
5177 goto next_ampersand
;
5183 /* Doing this set of switches later preserves their command-line
5184 ordering. This is needed for e.g. -U, -D and -A. */
5185 for (i
= 0; i
< n_switches
; i
++)
5186 if (switches
[i
].ordering
== 1)
5188 switches
[i
].ordering
= 0;
5189 give_switch (i
, 0, include_blanks
);
5192 /* Process the spec just once, regardless of match count. */
5195 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5203 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5204 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5205 spec, or -1 if either exact match or %* is used.
5207 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5208 whose value does not begin with "no-" is obsoleted by the same value
5209 with the "no-", similarly for a switch with the "no-" prefix. */
5212 check_live_switch (switchnum
, prefix_length
)
5216 const char *name
= switches
[switchnum
].part1
;
5219 /* In the common case of {<at-most-one-letter>*}, a negating
5220 switch would always match, so ignore that case. We will just
5221 send the conflicting switches to the compiler phase. */
5222 if (prefix_length
>= 0 && prefix_length
<= 1)
5225 /* If we already processed this switch and determined if it was
5226 live or not, return our past determination. */
5227 if (switches
[switchnum
].live_cond
!= 0)
5228 return switches
[switchnum
].live_cond
> 0;
5230 /* Now search for duplicate in a manner that depends on the name. */
5234 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5235 if (switches
[i
].part1
[0] == 'O')
5237 switches
[switchnum
].validated
= 1;
5238 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5243 case 'W': case 'f': case 'm':
5244 if (! strncmp (name
+ 1, "no-", 3))
5246 /* We have Xno-YYY, search for XYYY. */
5247 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5248 if (switches
[i
].part1
[0] == name
[0]
5249 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5251 switches
[switchnum
].validated
= 1;
5252 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5258 /* We have XYYY, search for Xno-YYY. */
5259 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5260 if (switches
[i
].part1
[0] == name
[0]
5261 && switches
[i
].part1
[1] == 'n'
5262 && switches
[i
].part1
[2] == 'o'
5263 && switches
[i
].part1
[3] == '-'
5264 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5266 switches
[switchnum
].validated
= 1;
5267 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5274 /* Otherwise the switch is live. */
5275 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5279 /* Pass a switch to the current accumulating command
5280 in the same form that we received it.
5281 SWITCHNUM identifies the switch; it is an index into
5282 the vector of switches gcc received, which is `switches'.
5283 This cannot fail since it never finishes a command line.
5285 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5287 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5291 give_switch (switchnum
, omit_first_word
, include_blanks
)
5293 int omit_first_word
;
5296 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5299 if (!omit_first_word
)
5301 do_spec_1 ("-", 0, NULL_PTR
);
5302 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
5305 if (switches
[switchnum
].args
!= 0)
5308 for (p
= switches
[switchnum
].args
; *p
; p
++)
5310 const char *arg
= *p
;
5313 do_spec_1 (" ", 0, NULL_PTR
);
5316 unsigned length
= strlen (arg
);
5318 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5319 if (arg
[length
] == '.')
5321 ((char *)arg
)[length
] = 0;
5324 do_spec_1 (arg
, 1, NULL_PTR
);
5327 ((char *)arg
)[length
] = '.';
5328 do_spec_1 (suffix_subst
, 1, NULL_PTR
);
5332 do_spec_1 (arg
, 1, NULL_PTR
);
5336 do_spec_1 (" ", 0, NULL_PTR
);
5337 switches
[switchnum
].validated
= 1;
5340 /* Search for a file named NAME trying various prefixes including the
5341 user's -B prefix and some standard ones.
5342 Return the absolute file name found. If nothing is found, return NAME. */
5350 /* Try multilib_dir if it is defined. */
5351 if (multilib_dir
!= NULL
)
5355 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
5356 strcpy (try, multilib_dir
);
5357 strcat (try, dir_separator_str
);
5360 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5362 /* If we don't find it in the multi library dir, then fall
5363 through and look for it in the normal places. */
5364 if (newname
!= NULL
)
5368 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5369 return newname
? newname
: name
;
5372 /* Determine whether a directory exists. If LINKER, return 0 for
5373 certain fixed names not needed by the linker. If not LINKER, it is
5374 only important to return 0 if the host machine has a small ARG_MAX
5378 is_directory (path1
, path2
, linker
)
5383 int len1
= strlen (path1
);
5384 int len2
= strlen (path2
);
5385 char *path
= (char *) alloca (3 + len1
+ len2
);
5389 #ifndef SMALL_ARG_MAX
5394 /* Construct the path from the two parts. Ensure the string ends with "/.".
5395 The resulting path will be a directory even if the given path is a
5397 memcpy (path
, path1
, len1
);
5398 memcpy (path
+ len1
, path2
, len2
);
5399 cp
= path
+ len1
+ len2
;
5400 if (!IS_DIR_SEPARATOR (cp
[-1]))
5401 *cp
++ = DIR_SEPARATOR
;
5405 /* Exclude directories that the linker is known to search. */
5408 && strcmp (path
, concat (dir_separator_str
, "lib",
5409 dir_separator_str
, ".", NULL_PTR
)) == 0)
5411 && strcmp (path
, concat (dir_separator_str
, "usr",
5412 dir_separator_str
, "lib",
5413 dir_separator_str
, ".", NULL_PTR
)) == 0)))
5416 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5419 /* Set up the various global variables to indicate that we're processing
5420 the input file named FILENAME. */
5423 set_input (filename
)
5424 const char *filename
;
5426 register const char *p
;
5428 input_filename
= filename
;
5429 input_filename_length
= strlen (input_filename
);
5431 input_basename
= input_filename
;
5432 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5433 /* Skip drive name so 'x:foo' is handled properly. */
5434 if (input_basename
[1] == ':')
5435 input_basename
+= 2;
5437 for (p
= input_basename
; *p
; p
++)
5438 if (IS_DIR_SEPARATOR (*p
))
5439 input_basename
= p
+ 1;
5441 /* Find a suffix starting with the last period,
5442 and set basename_length to exclude that suffix. */
5443 basename_length
= strlen (input_basename
);
5444 suffixed_basename_length
= basename_length
;
5445 p
= input_basename
+ basename_length
;
5446 while (p
!= input_basename
&& *p
!= '.')
5448 if (*p
== '.' && p
!= input_basename
)
5450 basename_length
= p
- input_basename
;
5451 input_suffix
= p
+ 1;
5457 /* On fatal signals, delete all the temporary files. */
5460 fatal_error (signum
)
5463 signal (signum
, SIG_DFL
);
5464 delete_failure_queue ();
5465 delete_temp_files ();
5466 /* Get the same signal again, this time not handled,
5467 so its normal effect occurs. */
5468 kill (getpid (), signum
);
5471 extern int main
PARAMS ((int, const char *const *));
5476 const char *const *argv
;
5480 int linker_was_run
= 0;
5481 char *explicit_link_files
;
5484 struct user_specs
*uptr
;
5486 p
= argv
[0] + strlen (argv
[0]);
5487 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5491 xmalloc_set_program_name (programname
);
5493 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5494 /* Perform host dependant initialization when needed. */
5495 GCC_DRIVER_HOST_INITIALIZATION
;
5498 /* LC_CTYPE determines the character set used by the terminal so it has be set
5499 to output messages correctly. */
5501 #ifdef HAVE_LC_MESSAGES
5502 setlocale (LC_CTYPE
, "");
5503 setlocale (LC_MESSAGES
, "");
5505 setlocale (LC_ALL
, "");
5508 (void) bindtextdomain (PACKAGE
, localedir
);
5509 (void) textdomain (PACKAGE
);
5511 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5512 signal (SIGINT
, fatal_error
);
5514 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5515 signal (SIGHUP
, fatal_error
);
5517 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5518 signal (SIGTERM
, fatal_error
);
5520 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5521 signal (SIGPIPE
, fatal_error
);
5524 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5525 receive the signal. A different setting is inheritable */
5526 signal (SIGCHLD
, SIG_DFL
);
5530 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5532 obstack_init (&obstack
);
5534 /* Build multilib_select, et. al from the separate lines that make up each
5535 multilib selection. */
5537 const char *const *q
= multilib_raw
;
5540 obstack_init (&multilib_obstack
);
5541 while ((p
= *q
++) != (char *) 0)
5542 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5544 obstack_1grow (&multilib_obstack
, 0);
5545 multilib_select
= obstack_finish (&multilib_obstack
);
5547 q
= multilib_matches_raw
;
5548 while ((p
= *q
++) != (char *) 0)
5549 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5551 obstack_1grow (&multilib_obstack
, 0);
5552 multilib_matches
= obstack_finish (&multilib_obstack
);
5554 q
= multilib_exclusions_raw
;
5555 while ((p
= *q
++) != (char *) 0)
5556 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5558 obstack_1grow (&multilib_obstack
, 0);
5559 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5562 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5565 obstack_1grow (&multilib_obstack
, ' ');
5566 obstack_grow (&multilib_obstack
,
5567 multilib_defaults_raw
[i
],
5568 strlen (multilib_defaults_raw
[i
]));
5572 obstack_1grow (&multilib_obstack
, 0);
5573 multilib_defaults
= obstack_finish (&multilib_obstack
);
5576 /* Set up to remember the pathname of gcc and any options
5577 needed for collect. We use argv[0] instead of programname because
5578 we need the complete pathname. */
5579 obstack_init (&collect_obstack
);
5580 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5581 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5582 putenv (obstack_finish (&collect_obstack
));
5584 #ifdef INIT_ENVIRONMENT
5585 /* Set up any other necessary machine specific environment variables. */
5586 putenv (INIT_ENVIRONMENT
);
5589 /* Make a table of what switches there are (switches, n_switches).
5590 Make a table of specified input files (infiles, n_infiles).
5591 Decode switches that are handled locally. */
5593 process_command (argc
, argv
);
5598 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5600 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5601 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5604 for (i
= 0; (int) i
< n_switches
; i
++)
5606 const char *const *args
;
5609 obstack_grow (&collect_obstack
, " ", 1);
5612 obstack_grow (&collect_obstack
, "'-", 2);
5613 q
= switches
[i
].part1
;
5614 while ((p
= strchr (q
, '\'')))
5616 obstack_grow (&collect_obstack
, q
, p
- q
);
5617 obstack_grow (&collect_obstack
, "'\\''", 4);
5620 obstack_grow (&collect_obstack
, q
, strlen (q
));
5621 obstack_grow (&collect_obstack
, "'", 1);
5623 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5625 obstack_grow (&collect_obstack
, " '", 2);
5627 while ((p
= strchr (q
, '\'')))
5629 obstack_grow (&collect_obstack
, q
, p
- q
);
5630 obstack_grow (&collect_obstack
, "'\\''", 4);
5633 obstack_grow (&collect_obstack
, q
, strlen (q
));
5634 obstack_grow (&collect_obstack
, "'", 1);
5637 obstack_grow (&collect_obstack
, "\0", 1);
5638 putenv (obstack_finish (&collect_obstack
));
5641 /* Initialize the vector of specs to just the default.
5642 This means one element containing 0s, as a terminator. */
5644 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5645 memcpy ((char *) compilers
, (char *) default_compilers
,
5646 sizeof default_compilers
);
5647 n_compilers
= n_default_compilers
;
5649 /* Read specs from a file if there is one. */
5651 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5652 spec_version
, dir_separator_str
, NULL_PTR
);
5653 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
5655 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5656 /* Read the specs file unless it is a default one. */
5657 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5658 read_specs (specs_file
, TRUE
);
5662 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5663 for any override of as, ld and libraries. */
5664 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5665 + strlen (just_machine_suffix
)
5666 + sizeof ("specs"));
5668 strcpy (specs_file
, standard_exec_prefix
);
5669 strcat (specs_file
, just_machine_suffix
);
5670 strcat (specs_file
, "specs");
5671 if (access (specs_file
, R_OK
) == 0)
5672 read_specs (specs_file
, TRUE
);
5674 /* If not cross-compiling, look for startfiles in the standard places. */
5675 if (*cross_compile
== '0')
5677 if (*md_exec_prefix
)
5679 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5680 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5681 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5682 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5685 if (*md_startfile_prefix
)
5686 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5687 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5689 if (*md_startfile_prefix_1
)
5690 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5691 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5693 /* If standard_startfile_prefix is relative, base it on
5694 standard_exec_prefix. This lets us move the installed tree
5695 as a unit. If GCC_EXEC_PREFIX is defined, base
5696 standard_startfile_prefix on that as well. */
5697 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5698 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5699 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5702 if (gcc_exec_prefix
)
5703 add_prefix (&startfile_prefixes
,
5704 concat (gcc_exec_prefix
, machine_suffix
,
5705 standard_startfile_prefix
, NULL_PTR
),
5706 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5707 add_prefix (&startfile_prefixes
,
5708 concat (standard_exec_prefix
,
5710 standard_startfile_prefix
, NULL_PTR
),
5711 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5714 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5715 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5716 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5717 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5718 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5719 add_prefix (&startfile_prefixes
, "./", NULL_PTR
,
5720 PREFIX_PRIORITY_LAST
, 1, NULL_PTR
);
5725 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5727 add_prefix (&startfile_prefixes
,
5728 concat (gcc_exec_prefix
, machine_suffix
,
5729 standard_startfile_prefix
, NULL_PTR
),
5730 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5733 /* Process any user specified specs in the order given on the command
5735 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5737 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5738 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5741 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5742 if (gcc_exec_prefix
)
5744 char *temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5745 + strlen (spec_version
)
5746 + strlen (spec_machine
) + 3);
5747 strcpy (temp
, gcc_exec_prefix
);
5748 strcat (temp
, spec_machine
);
5749 strcat (temp
, dir_separator_str
);
5750 strcat (temp
, spec_version
);
5751 strcat (temp
, dir_separator_str
);
5752 gcc_exec_prefix
= temp
;
5755 /* Now we have the specs.
5756 Set the `valid' bits for switches that match anything in any spec. */
5758 validate_all_switches ();
5760 /* Now that we have the switches and the specs, set
5761 the subdirectory based on the options. */
5762 set_multilib_dir ();
5764 /* Warn about any switches that no pass was interested in. */
5766 for (i
= 0; (int) i
< n_switches
; i
++)
5767 if (! switches
[i
].validated
)
5768 error ("unrecognized option `-%s'", switches
[i
].part1
);
5770 /* Obey some of the options. */
5772 if (print_search_dirs
)
5774 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5775 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5776 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5780 if (print_file_name
)
5782 printf ("%s\n", find_file (print_file_name
));
5786 if (print_prog_name
)
5788 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5789 printf ("%s\n", (newname
? newname
: print_prog_name
));
5793 if (print_multi_lib
)
5795 print_multilib_info ();
5799 if (print_multi_directory
)
5801 if (multilib_dir
== NULL
)
5804 printf ("%s\n", multilib_dir
);
5808 if (target_help_flag
)
5810 /* Print if any target specific options.*/
5812 /* We do not exit here. Instead we have created a fake input file
5813 called 'target-dummy' which needs to be compiled, and we pass this
5814 on to the various sub-processes, along with the --target-help
5818 if (print_help_list
)
5824 printf (_("\nFor bug reporting instructions, please see:\n"));
5825 printf ("%s.\n", GCCBUGURL
);
5830 /* We do not exit here. Instead we have created a fake input file
5831 called 'help-dummy' which needs to be compiled, and we pass this
5832 on the the various sub-processes, along with the --help switch. */
5839 notice ("Configured with: %s\n", configuration_arguments
);
5841 /* compiler_version is truncated at the first space when initialized
5842 from version string, so truncate version_string at the first space
5843 before comparing. */
5844 for (n
= 0; version_string
[n
]; n
++)
5845 if (version_string
[n
] == ' ')
5848 if (! strncmp (version_string
, compiler_version
, n
)
5849 && compiler_version
[n
] == 0)
5850 notice ("gcc version %s\n", version_string
);
5852 notice ("gcc driver version %s executing gcc version %s\n",
5853 version_string
, compiler_version
);
5859 if (n_infiles
== added_libraries
)
5860 fatal ("No input files");
5862 /* Make a place to record the compiler output file names
5863 that correspond to the input files. */
5866 i
+= lang_specific_extra_outfiles
;
5867 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5869 /* Record which files were specified explicitly as link input. */
5871 explicit_link_files
= xcalloc (1, n_infiles
);
5873 for (i
= 0; (int) i
< n_infiles
; i
++)
5875 int this_file_error
= 0;
5877 /* Tell do_spec what to substitute for %i. */
5879 input_file_number
= i
;
5880 set_input (infiles
[i
].name
);
5882 /* Use the same thing in %o, unless cp->spec says otherwise. */
5884 outfiles
[i
] = input_filename
;
5886 /* Figure out which compiler from the file's suffix. */
5889 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
5890 infiles
[i
].language
);
5892 if (input_file_compiler
)
5894 /* Ok, we found an applicable compiler. Run its spec. */
5896 if (input_file_compiler
->spec
[0] == '#')
5897 error ("%s: %s compiler not installed on this system",
5898 input_filename
, &input_file_compiler
->spec
[1]);
5899 value
= do_spec (input_file_compiler
->spec
);
5901 this_file_error
= 1;
5904 /* If this file's name does not contain a recognized suffix,
5905 record it as explicit linker input. */
5908 explicit_link_files
[i
] = 1;
5910 /* Clear the delete-on-failure queue, deleting the files in it
5911 if this compilation failed. */
5913 if (this_file_error
)
5915 delete_failure_queue ();
5918 /* If this compilation succeeded, don't delete those files later. */
5919 clear_failure_queue ();
5922 /* Reset the output file name to the first input file name, for use
5923 with %b in LINK_SPEC on a target that prefers not to emit a.out
5926 set_input (infiles
[0].name
);
5928 if (error_count
== 0)
5930 /* Make sure INPUT_FILE_NUMBER points to first available open
5932 input_file_number
= n_infiles
;
5933 if (lang_specific_pre_link ())
5937 /* Run ld to link all the compiler output files. */
5939 if (error_count
== 0)
5941 int tmp
= execution_count
;
5943 /* We'll use ld if we can't find collect2. */
5944 if (! strcmp (linker_name_spec
, "collect2"))
5946 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5948 linker_name_spec
= "ld";
5950 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5952 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
5953 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
5955 value
= do_spec (link_command_spec
);
5958 linker_was_run
= (tmp
!= execution_count
);
5961 /* If options said don't run linker,
5962 complain about input files to be given to the linker. */
5964 if (! linker_was_run
&& error_count
== 0)
5965 for (i
= 0; (int) i
< n_infiles
; i
++)
5966 if (explicit_link_files
[i
])
5967 error ("%s: linker input file unused because linking not done",
5970 /* Delete some or all of the temporary files we made. */
5973 delete_failure_queue ();
5974 delete_temp_files ();
5976 if (print_help_list
)
5978 printf (("\nFor bug reporting instructions, please see:\n"));
5979 printf ("%s\n", GCCBUGURL
);
5982 return (signal_count
!= 0 ? 2
5983 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5987 /* Find the proper compilation spec for the file name NAME,
5988 whose length is LENGTH. LANGUAGE is the specified language,
5989 or 0 if this file is to be passed to the linker. */
5991 static struct compiler
*
5992 lookup_compiler (name
, length
, language
)
5995 const char *language
;
5997 struct compiler
*cp
;
5999 /* If this was specified by the user to be a linker input, indicate that. */
6000 if (language
!= 0 && language
[0] == '*')
6003 /* Otherwise, look for the language, if one is spec'd. */
6006 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6007 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6010 error ("language %s not recognized", language
);
6014 /* Look for a suffix. */
6015 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6017 if (/* The suffix `-' matches only the file name `-'. */
6018 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6019 || (strlen (cp
->suffix
) < length
6020 /* See if the suffix matches the end of NAME. */
6021 && !strcmp (cp
->suffix
,
6022 name
+ length
- strlen (cp
->suffix
))
6027 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6028 /* look again, but case-insensitively this time. */
6030 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6032 if (/* The suffix `-' matches only the file name `-'. */
6033 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6034 || (strlen (cp
->suffix
) < length
6035 /* See if the suffix matches the end of NAME. */
6036 && ((!strcmp (cp
->suffix
,
6037 name
+ length
- strlen (cp
->suffix
))
6038 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6039 && !strcasecmp (cp
->suffix
,
6040 name
+ length
- strlen (cp
->suffix
)))
6046 if (cp
>= compilers
)
6048 if (cp
->spec
[0] != '@')
6049 /* A non-alias entry: return it. */
6052 /* An alias entry maps a suffix to a language.
6053 Search for the language; pass 0 for NAME and LENGTH
6054 to avoid infinite recursion if language not found. */
6055 return lookup_compiler (NULL_PTR
, 0, cp
->spec
+ 1);
6061 save_string (s
, len
)
6065 register char *result
= xmalloc (len
+ 1);
6067 memcpy (result
, s
, len
);
6073 pfatal_with_name (name
)
6076 perror_with_name (name
);
6077 delete_temp_files ();
6082 perror_with_name (name
)
6085 error ("%s: %s", name
, xstrerror (errno
));
6089 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6090 const char *errmsg_fmt
;
6091 const char *errmsg_arg
;
6095 int save_errno
= errno
;
6097 /* Space for trailing '\0' is in %s. */
6098 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6099 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6105 pfatal_with_name (errmsg_fmt
);
6108 /* Output an error message and exit */
6113 fatal ("Internal gcc abort.");
6116 /* Output an error message and exit */
6119 fatal
VPARAMS ((const char *msgid
, ...))
6121 #ifndef ANSI_PROTOTYPES
6126 VA_START (ap
, msgid
);
6128 #ifndef ANSI_PROTOTYPES
6129 msgid
= va_arg (ap
, const char *);
6132 fprintf (stderr
, "%s: ", programname
);
6133 vfprintf (stderr
, _(msgid
), ap
);
6135 fprintf (stderr
, "\n");
6136 delete_temp_files ();
6141 error
VPARAMS ((const char *msgid
, ...))
6143 #ifndef ANSI_PROTOTYPES
6148 VA_START (ap
, msgid
);
6150 #ifndef ANSI_PROTOTYPES
6151 msgid
= va_arg (ap
, const char *);
6154 fprintf (stderr
, "%s: ", programname
);
6155 vfprintf (stderr
, _(msgid
), ap
);
6158 fprintf (stderr
, "\n");
6162 notice
VPARAMS ((const char *msgid
, ...))
6164 #ifndef ANSI_PROTOTYPES
6169 VA_START (ap
, msgid
);
6171 #ifndef ANSI_PROTOTYPES
6172 msgid
= va_arg (ap
, const char *);
6175 vfprintf (stderr
, _(msgid
), ap
);
6180 validate_all_switches ()
6182 struct compiler
*comp
;
6183 register const char *p
;
6185 struct spec_list
*spec
;
6187 for (comp
= compilers
; comp
->spec
; comp
++)
6191 if (c
== '%' && *p
== '{')
6192 /* We have a switch spec. */
6193 validate_switches (p
+ 1);
6196 /* Look through the linked list of specs read from the specs file. */
6197 for (spec
= specs
; spec
; spec
= spec
->next
)
6199 p
= *(spec
->ptr_spec
);
6201 if (c
== '%' && *p
== '{')
6202 /* We have a switch spec. */
6203 validate_switches (p
+ 1);
6206 p
= link_command_spec
;
6208 if (c
== '%' && *p
== '{')
6209 /* We have a switch spec. */
6210 validate_switches (p
+ 1);
6213 /* Look at the switch-name that comes after START
6214 and mark as valid all supplied switches that match it. */
6217 validate_switches (start
)
6220 register const char *p
= start
;
6237 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6242 else if (p
[-1] == '*')
6244 /* Mark all matching switches as valid. */
6245 for (i
= 0; i
< n_switches
; i
++)
6246 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6247 switches
[i
].validated
= 1;
6251 /* Mark an exact matching switch as valid. */
6252 for (i
= 0; i
< n_switches
; i
++)
6254 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6255 && switches
[i
].part1
[p
- filter
] == 0)
6256 switches
[i
].validated
= 1;
6260 if (*p
++ == '|' || p
[-1] == '&')
6264 /* Check whether a particular argument was used. The first time we
6265 canonicalize the switches to keep only the ones we care about. */
6275 const char *replace
;
6280 static struct mswitchstr
*mswitches
;
6281 static int n_mswitches
;
6286 struct mswitchstr
*matches
;
6290 /* Break multilib_matches into the component strings of string
6291 and replacement string. */
6292 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6297 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6299 q
= multilib_matches
;
6309 matches
[i
].len
= q
- matches
[i
].str
;
6311 matches
[i
].replace
= ++q
;
6312 while (*q
!= ';' && *q
!= '\0')
6318 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6324 /* Now build a list of the replacement string for switches that we care
6325 about. Make sure we allocate at least one entry. This prevents
6326 xmalloc from calling fatal, and prevents us from re-executing this
6329 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6330 * (n_switches
? n_switches
: 1));
6331 for (i
= 0; i
< n_switches
; i
++)
6333 int xlen
= strlen (switches
[i
].part1
);
6334 for (j
= 0; j
< cnt
; j
++)
6335 if (xlen
== matches
[j
].len
6336 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6338 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6339 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6340 mswitches
[n_mswitches
].replace
= (char *) 0;
6341 mswitches
[n_mswitches
].rep_len
= 0;
6348 for (i
= 0; i
< n_mswitches
; i
++)
6349 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6356 default_arg (p
, len
)
6360 const char *start
, *end
;
6362 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6364 while (*start
== ' ' || *start
== '\t')
6370 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6373 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6383 /* Work out the subdirectory to use based on the options. The format of
6384 multilib_select is a list of elements. Each element is a subdirectory
6385 name followed by a list of options followed by a semicolon. The format
6386 of multilib_exclusions is the same, but without the preceding
6387 directory. First gcc will check the exclusions, if none of the options
6388 beginning with an exclamation point are present, and all of the other
6389 options are present, then we will ignore this completely. Passing
6390 that, gcc will consider each multilib_select in turn using the same
6391 rules for matching the options. If a match is found, that subdirectory
6398 unsigned int this_path_len
;
6399 const char *this_path
, *this_arg
;
6403 p
= multilib_exclusions
;
6406 /* Ignore newlines. */
6413 /* Check the arguments. */
6427 while (*p
!= ' ' && *p
!= ';')
6434 if (*this_arg
!= '!')
6442 ok
= used_arg (this_arg
, p
- this_arg
);
6456 p
= multilib_select
;
6459 /* Ignore newlines. */
6466 /* Get the initial path. */
6474 this_path_len
= p
- this_path
;
6476 /* Check the arguments. */
6491 while (*p
!= ' ' && *p
!= ';')
6498 if (*this_arg
!= '!')
6506 /* If this is a default argument, we can just ignore it.
6507 This is true even if this_arg begins with '!'. Beginning
6508 with '!' does not mean that this argument is necessarily
6509 inappropriate for this library: it merely means that
6510 there is a more specific library which uses this
6511 argument. If this argument is a default, we need not
6512 consider that more specific library. */
6513 if (! default_arg (this_arg
, p
- this_arg
))
6515 ok
= used_arg (this_arg
, p
- this_arg
);
6526 if (this_path_len
!= 1
6527 || this_path
[0] != '.')
6529 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6530 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6531 new_multilib_dir
[this_path_len
] = '\0';
6532 multilib_dir
= new_multilib_dir
;
6541 /* Print out the multiple library subdirectory selection
6542 information. This prints out a series of lines. Each line looks
6543 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6544 required. Only the desired options are printed out, the negative
6545 matches. The options are print without a leading dash. There are
6546 no spaces to make it easy to use the information in the shell.
6547 Each subdirectory is printed only once. This assumes the ordering
6548 generated by the genmultilib script. Also, we leave out ones that match
6552 print_multilib_info ()
6554 const char *p
= multilib_select
;
6555 const char *last_path
= 0, *this_path
;
6557 unsigned int last_path_len
= 0;
6562 /* Ignore newlines. */
6569 /* Get the initial path. */
6578 /* Check for matches with the multilib_exclusions. We don't bother
6579 with the '!' in either list. If any of the exclusion rules match
6580 all of its options with the select rule, we skip it. */
6582 const char *e
= multilib_exclusions
;
6583 const char *this_arg
;
6588 /* Ignore newlines. */
6595 /* Check the arguments. */
6612 while (*e
!= ' ' && *e
!= ';')
6623 int len
= e
- this_arg
;
6630 while (*q
!= ' ' && *q
!= ';')
6637 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6638 default_arg (this_arg
, e
- this_arg
))
6668 /* If this is a duplicate, skip it. */
6669 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6670 && ! strncmp (last_path
, this_path
, last_path_len
));
6672 last_path
= this_path
;
6673 last_path_len
= p
- this_path
;
6676 /* If this directory requires any default arguments, we can skip
6677 it. We will already have printed a directory identical to
6678 this one which does not require that default argument. */
6696 while (*q
!= ' ' && *q
!= ';')
6704 && default_arg (arg
, q
- arg
))
6719 for (p1
= last_path
; p1
< p
; p1
++)
6738 use_arg
= *p
!= '!';
6743 while (*p
!= ' ' && *p
!= ';')
6758 /* If there are extra options, print them now. */
6759 if (multilib_extra
&& *multilib_extra
)
6761 int print_at
= TRUE
;
6764 for (q
= multilib_extra
; *q
!= '\0'; q
++)