1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
35 /* A Short Introduction to Adding a Command-Line Option.
37 Before adding a command-line option, consider if it is really
38 necessary. Each additional command-line option adds complexity and
39 is difficult to remove in subsequent versions.
41 In the following, consider adding the command-line argument
44 1. Each command-line option is specified in the specs file. The
45 notation is described below in the comment entitled "The Specs
48 2. In this file, add an entry to "option_map" equating the long
49 `--' argument version and any shorter, single letter version. Read
50 the comments in the declaration of "struct option_map" for an
51 explanation. Do not omit the first `-'.
53 3. Look in the "specs" file to determine which program or option
54 list should be given the argument, e.g., "cc1_options". Add the
55 appropriate syntax for the shorter option version to the
56 corresponding "const char *" entry in this file. Omit the first
57 `-' from the option. For example, use `-bar', rather than `--bar'.
59 4. If the argument takes an argument, e.g., `--baz argument1',
60 modify either DEFAULT_SWITCH_TAKES_ARG or
61 DEFAULT_WORD_SWITCH_TAKES_ARG in this file. Omit the first `-'
64 5. Document the option in this file's display_help(). If the
65 option is passed to a subprogram, modify its corresponding
66 function, e.g., cppinit.c:print_help() or toplev.c:display_help(),
69 6. Compile and test. Make sure that your new specs file is being
70 read. For example, use a debugger to investigate the value of
71 "specs_file" in main(). */
76 #if ! defined( SIGCHLD ) && defined( SIGCLD )
77 # define SIGCHLD SIGCLD
85 #define exit __posix_exit
88 #ifdef HAVE_SYS_RESOURCE_H
89 #include <sys/resource.h>
91 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
92 extern int getrusage
PARAMS ((int, struct rusage
*));
95 /* By default there is no special suffix for target executables. */
96 /* FIXME: when autoconf is fixed, remove the host check - dj */
97 #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
98 #define HAVE_TARGET_EXECUTABLE_SUFFIX
100 #define TARGET_EXECUTABLE_SUFFIX ""
103 /* By default there is no special suffix for host executables. */
104 #ifdef HOST_EXECUTABLE_SUFFIX
105 #define HAVE_HOST_EXECUTABLE_SUFFIX
107 #define HOST_EXECUTABLE_SUFFIX ""
110 /* By default, the suffix for target object files is ".o". */
111 #ifdef TARGET_OBJECT_SUFFIX
112 #define HAVE_TARGET_OBJECT_SUFFIX
114 #define TARGET_OBJECT_SUFFIX ".o"
118 /* FIXME: the location independence code for VMS is hairier than this,
119 and hasn't been written. */
125 static char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
127 #define obstack_chunk_alloc xmalloc
128 #define obstack_chunk_free free
130 #ifndef GET_ENV_PATH_LIST
131 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
134 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
135 #ifndef LIBRARY_PATH_ENV
136 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
140 #define kill(p,s) raise(s)
143 /* If a stage of compilation returns an exit status >= 1,
144 compilation of that file ceases. */
146 #define MIN_FATAL_STATUS 1
148 /* Flag saying to pass the greatest exit code returned by a sub-process
149 to the calling program. */
150 static int pass_exit_codes
;
152 /* Definition of string containing the arguments given to configure. */
153 #include "configargs.h"
155 /* Flag saying to print the directories gcc will search through looking for
156 programs, libraries, etc. */
158 static int print_search_dirs
;
160 /* Flag saying to print the full filename of this file
161 as found through our usual search mechanism. */
163 static const char *print_file_name
= NULL
;
165 /* As print_file_name, but search for executable file. */
167 static const char *print_prog_name
= NULL
;
169 /* Flag saying to print the relative path we'd use to
170 find libgcc.a given the current compiler flags. */
172 static int print_multi_directory
;
174 /* Flag saying to print the list of subdirectories and
175 compiler flags used to select them in a standard form. */
177 static int print_multi_lib
;
179 /* Flag saying to print the command line options understood by gcc and its
182 static int print_help_list
;
184 /* Flag indicating whether we should print the command and arguments */
186 static int verbose_flag
;
188 /* Flag indicating to print target specific command line options. */
190 static int target_help_flag
;
192 /* Flag indicating whether we should report subprocess execution times
193 (if this is supported by the system - see pexecute.c). */
195 static int report_times
;
197 /* Nonzero means write "temp" files in source directory
198 and use the source file's name in them, and don't delete them. */
200 static int save_temps_flag
;
202 /* The compiler version. */
204 static const char *compiler_version
;
206 /* The target version specified with -V */
208 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
210 /* The target machine specified with -b. */
212 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
214 /* Nonzero if cross-compiling.
215 When -b is used, the value comes from the `specs' file. */
218 static const char *cross_compile
= "1";
220 static const char *cross_compile
= "0";
223 #ifdef MODIFY_TARGET_NAME
225 /* Information on how to alter the target name based on a command-line
226 switch. The only case we support now is simply appending or deleting a
227 string to or from the end of the first part of the configuration name. */
232 enum add_del
{ADD
, DELETE
} add_del
;
235 modify_target
[] = MODIFY_TARGET_NAME
;
238 /* The number of errors that have occurred; the link phase will not be
239 run if this is non-zero. */
240 static int error_count
= 0;
242 /* Greatest exit code of sub-processes that has been encountered up to
244 static int greatest_status
= 1;
246 /* This is the obstack which we use to allocate many strings. */
248 static struct obstack obstack
;
250 /* This is the obstack to build an environment variable to pass to
251 collect2 that describes all of the relevant switches of what to
252 pass the compiler in building the list of pointers to constructors
255 static struct obstack collect_obstack
;
257 /* These structs are used to collect resource usage information for
259 #ifdef HAVE_GETRUSAGE
260 static struct rusage rus
, prus
;
263 /* Forward declaration for prototypes. */
266 static void init_spec
PARAMS ((void));
268 static char **split_directories
PARAMS ((const char *, int *));
269 static void free_split_directories
PARAMS ((char **));
270 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
272 static void store_arg
PARAMS ((const char *, int, int));
273 static char *load_specs
PARAMS ((const char *));
274 static void read_specs
PARAMS ((const char *, int));
275 static void set_spec
PARAMS ((const char *, const char *));
276 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
277 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
278 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
279 static int access_check
PARAMS ((const char *, int));
280 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
281 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
282 const char *, int, int, int *));
283 static void translate_options
PARAMS ((int *, const char *const **));
284 static char *skip_whitespace
PARAMS ((char *));
285 static void delete_if_ordinary
PARAMS ((const char *));
286 static void delete_temp_files
PARAMS ((void));
287 static void delete_failure_queue
PARAMS ((void));
288 static void clear_failure_queue
PARAMS ((void));
289 static int check_live_switch
PARAMS ((int, int));
290 static const char *handle_braces
PARAMS ((const char *));
291 static char *save_string
PARAMS ((const char *, int));
292 static int do_spec_1
PARAMS ((const char *, int, const char *));
293 static const char *find_file
PARAMS ((const char *));
294 static int is_directory
PARAMS ((const char *, const char *, int));
295 static void validate_switches
PARAMS ((const char *));
296 static void validate_all_switches
PARAMS ((void));
297 static void give_switch
PARAMS ((int, int, int));
298 static int used_arg
PARAMS ((const char *, int));
299 static int default_arg
PARAMS ((const char *, int));
300 static void set_multilib_dir
PARAMS ((void));
301 static void print_multilib_info
PARAMS ((void));
302 static void perror_with_name
PARAMS ((const char *));
303 static void pfatal_pexecute
PARAMS ((const char *, const char *))
305 static void notice
PARAMS ((const char *, ...))
307 static void display_help
PARAMS ((void));
308 static void add_preprocessor_option
PARAMS ((const char *, int));
309 static void add_assembler_option
PARAMS ((const char *, int));
310 static void add_linker_option
PARAMS ((const char *, int));
311 static void process_command
PARAMS ((int, const char *const *));
312 static int execute
PARAMS ((void));
313 static void clear_args
PARAMS ((void));
314 static void fatal_error
PARAMS ((int));
315 static void set_input
PARAMS ((const char *));
316 static void init_gcc_specs
PARAMS ((struct obstack
*,
320 /* The Specs Language
322 Specs are strings containing lines, each of which (if not blank)
323 is made up of a program name, and arguments separated by spaces.
324 The program name must be exact and start from root, since no path
325 is searched and it is unreliable to depend on the current working directory.
326 Redirection of input or output is not supported; the subprograms must
327 accept filenames saying what files to read and write.
329 In addition, the specs can contain %-sequences to substitute variable text
330 or for conditional text. Here is a table of all defined %-sequences.
331 Note that spaces are not generated automatically around the results of
332 expanding these sequences; therefore, you can concatenate them together
333 or with constant text in a single argument.
335 %% substitute one % into the program name or argument.
336 %i substitute the name of the input file being processed.
337 %b substitute the basename of the input file being processed.
338 This is the substring up to (and not including) the last period
339 and not including the directory.
340 %B same as %b, but include the file suffix (text after the last period).
342 substitute a file name that has suffix SUFFIX and is chosen
343 once per compilation, and mark the argument a la %d. To reduce
344 exposure to denial-of-service attacks, the file name is now
345 chosen in a way that is hard to predict even when previously
346 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
347 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
348 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
349 had been pre-processed. Previously, %g was simply substituted
350 with a file name chosen once per compilation, without regard
351 to any appended suffix (which was therefore treated just like
352 ordinary text), making such attacks more likely to succeed.
354 like %g, but generates a new temporary file name even if %uSUFFIX
357 substitutes the last file name generated with %uSUFFIX, generating a
358 new one if there is no such last file name. In the absence of any
359 %uSUFFIX, this is just like %gSUFFIX, except they don't share
360 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
361 would involve the generation of two distinct file names, one
362 for each `%g.s' and another for each `%U.s'. Previously, %U was
363 simply substituted with a file name chosen for the previous %u,
364 without regard to any appended suffix.
366 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
367 writable, and if save-temps is off; otherwise, substitute the name
368 of a temporary file, just like %u. This temporary file is not
369 meant for communication between processes, but rather as a junk
372 substitutes .SUFFIX for the suffixes of a matched switch's args when
373 it is subsequently output with %*. SUFFIX is terminated by the next
375 %d marks the argument containing or following the %d as a
376 temporary file name, so that that file will be deleted if CC exits
377 successfully. Unlike %g, this contributes no text to the argument.
378 %w marks the argument containing or following the %w as the
379 "output file" of this compilation. This puts the argument
380 into the sequence of arguments that %o will substitute later.
382 like %{...} but mark last argument supplied within
383 as a file to be deleted on failure.
384 %o substitutes the names of all the output files, with spaces
385 automatically placed around them. You should write spaces
386 around the %o as well or the results are undefined.
387 %o is for use in the specs for running the linker.
388 Input files whose names have no recognized suffix are not compiled
389 at all, but they are included among the output files, so they will
391 %O substitutes the suffix for object files. Note that this is
392 handled specially when it immediately follows %g, %u, or %U
393 (with or without a suffix argument) because of the need for
394 those to form complete file names. The handling is such that
395 %O is treated exactly as if it had already been substituted,
396 except that %g, %u, and %U do not currently support additional
397 SUFFIX characters following %O as they would following, for
399 %p substitutes the standard macro predefinitions for the
400 current target machine. Use this when running cpp.
401 %P like %p, but puts `__' before and after the name of each macro.
402 (Except macros that already have __.)
404 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
405 %s current argument is the name of a library or startup file of some sort.
406 Search for that file in a standard list of directories
407 and substitute the full name found.
408 %eSTR Print STR as an error message. STR is terminated by a newline.
409 Use this when inconsistent options are detected.
410 %nSTR Print STR as an notice. STR is terminated by a newline.
411 %x{OPTION} Accumulate an option for %X.
412 %X Output the accumulated linker options specified by compilations.
413 %Y Output the accumulated assembler options specified by compilations.
414 %Z Output the accumulated preprocessor options specified by compilations.
415 %v1 Substitute the major version number of GCC.
416 (For version 2.5.3, this is 2.)
417 %v2 Substitute the minor version number of GCC.
418 (For version 2.5.3, this is 5.)
419 %v3 Substitute the patch level number of GCC.
420 (For version 2.5.3, this is 3.)
421 %a process ASM_SPEC as a spec.
422 This allows config.h to specify part of the spec for running as.
423 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
424 used here. This can be used to run a post-processor after the
425 assembler has done its job.
426 %D Dump out a -L option for each directory in startfile_prefixes.
427 If multilib_dir is set, extra entries are generated with it affixed.
428 %l process LINK_SPEC as a spec.
429 %L process LIB_SPEC as a spec.
430 %G process LIBGCC_SPEC as a spec.
431 %M output multilib_dir with directory separators replaced with "_";
432 if multilib_dir is not set or is ".", output "".
433 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
434 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
435 %c process SIGNED_CHAR_SPEC as a spec.
436 %C process CPP_SPEC as a spec.
437 %1 process CC1_SPEC as a spec.
438 %2 process CC1PLUS_SPEC as a spec.
439 %| output "-" if the input for the current command is coming from a pipe.
440 %* substitute the variable part of a matched option. (See below.)
441 Note that each comma in the substituted string is replaced by
443 %{S} substitutes the -S switch, if that switch was given to CC.
444 If that switch was not specified, this substitutes nothing.
445 Here S is a metasyntactic variable.
446 %{S*} substitutes all the switches specified to CC whose names start
447 with -S. This is used for -o, -I, etc; switches that take
448 arguments. CC considers `-o foo' as being one switch whose
449 name starts with `o'. %{o*} would substitute this text,
450 including the space; thus, two arguments would be generated.
451 %{^S*} likewise, but don't put a blank between a switch and any args.
452 %{S*&T*} likewise, but preserve order of S and T options (the order
453 of S and T in the spec is not significant). Can be any number
454 of ampersand-separated variables; for each the wild card is
455 optional. Useful for CPP as %{D*&U*&A*}.
456 %{S*:X} substitutes X if one or more switches whose names start with -S are
457 specified to CC. Note that the tail part of the -S option
458 (i.e. the part matched by the `*') will be substituted for each
459 occurrence of %* within X.
460 %{<S} remove all occurences of -S from the command line.
461 Note - this option is position dependent. % commands in the
462 spec string before this option will see -S, % commands in the
463 spec string after this option will not.
464 %{S:X} substitutes X, but only if the -S switch was given to CC.
465 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
466 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
467 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
468 %{.S:X} substitutes X, but only if processing a file with suffix S.
469 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
470 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
471 combined with ! and . as above binding stronger than the OR.
472 %(Spec) processes a specification defined in a specs file as *Spec:
473 %[Spec] as above, but put __ around -D arguments
475 The conditional text X in a %{S:X} or %{!S:X} construct may contain
476 other nested % constructs or spaces, or even newlines. They are
477 processed as usual, as described above.
479 The -O, -f, -m, and -W switches are handled specifically in these
480 constructs. If another value of -O or the negated form of a -f, -m, or
481 -W switch is found later in the command line, the earlier switch
482 value is ignored, except with {S*} where S is just one letter; this
483 passes all matching options.
485 The character | at the beginning of the predicate text is used to indicate
486 that a command should be piped to the following command, but only if -pipe
489 Note that it is built into CC which switches take arguments and which
490 do not. You might think it would be useful to generalize this to
491 allow each compiler's spec to say which switches take arguments. But
492 this cannot be done in a consistent fashion. CC cannot even decide
493 which input files have been specified without knowing which switches
494 take arguments, and it must know which input files to compile in order
495 to tell which compilers to run.
497 CC also knows implicitly that arguments starting in `-l' are to be
498 treated as compiler output files, and passed to the linker in their
499 proper position among the other output files. */
501 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
503 /* config.h can define ASM_SPEC to provide extra args to the assembler
504 or extra switch-translations. */
509 /* config.h can define ASM_FINAL_SPEC to run a post processor after
510 the assembler has run. */
511 #ifndef ASM_FINAL_SPEC
512 #define ASM_FINAL_SPEC ""
515 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
516 or extra switch-translations. */
521 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
522 or extra switch-translations. */
527 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
528 or extra switch-translations. */
530 #define CC1PLUS_SPEC ""
533 /* config.h can define LINK_SPEC to provide extra args to the linker
534 or extra switch-translations. */
539 /* config.h can define LIB_SPEC to override the default libraries. */
541 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
544 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
547 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
548 /* Have gcc do the search for libgcc.a. */
549 #define LIBGCC_SPEC "libgcc.a%s"
551 #define LIBGCC_SPEC "-lgcc"
555 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
556 #ifndef STARTFILE_SPEC
557 #define STARTFILE_SPEC \
558 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
561 /* config.h can define SWITCHES_NEED_SPACES to control which options
562 require spaces between the option and the argument. */
563 #ifndef SWITCHES_NEED_SPACES
564 #define SWITCHES_NEED_SPACES ""
567 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
569 #define ENDFILE_SPEC ""
572 /* This spec is used for telling cpp whether char is signed or not. */
573 #ifndef SIGNED_CHAR_SPEC
574 /* Use #if rather than ?:
575 because MIPS C compiler rejects like ?: in initializers. */
576 #if DEFAULT_SIGNED_CHAR
577 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
579 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
584 #define LINKER_NAME "collect2"
587 /* Here is the spec for running the linker, after compiling all files. */
589 /* -u* was put back because both BSD and SysV seem to support it. */
590 /* %{static:} simply prevents an error message if the target machine
591 doesn't handle -static. */
592 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
593 scripts which exist in user specified directories, or in standard
595 #ifndef LINK_COMMAND_SPEC
596 #define LINK_COMMAND_SPEC "\
597 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
598 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
599 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
600 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
601 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
604 #ifndef LINK_LIBGCC_SPEC
605 # ifdef LINK_LIBGCC_SPECIAL
606 /* Don't generate -L options for startfile prefix list. */
607 # define LINK_LIBGCC_SPEC ""
609 /* Do generate them. */
610 # define LINK_LIBGCC_SPEC "%D"
614 static const char *cpp_spec
= CPP_SPEC
;
615 static const char *cpp_predefines
= CPP_PREDEFINES
;
616 static const char *cc1_spec
= CC1_SPEC
;
617 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
618 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
619 static const char *asm_spec
= ASM_SPEC
;
620 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
621 static const char *link_spec
= LINK_SPEC
;
622 static const char *lib_spec
= LIB_SPEC
;
623 static const char *libgcc_spec
= LIBGCC_SPEC
;
624 static const char *endfile_spec
= ENDFILE_SPEC
;
625 static const char *startfile_spec
= STARTFILE_SPEC
;
626 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
627 static const char *linker_name_spec
= LINKER_NAME
;
628 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
629 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
631 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
632 There should be no need to override these in target dependent files,
633 but we need to copy them to the specs file so that newer versions
634 of the GCC driver can correctly drive older tool chains with the
635 appropriate -B options. */
637 static const char *trad_capable_cpp
=
638 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
640 static const char *cpp_options
=
641 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
642 %{std*} %{nostdinc*}\
643 %{C} %{v} %{I*} %{P} %{$} %I\
644 %{MD:-M -MF %W{!o: %b.d}%W{o*:%.d%*}}\
645 %{MMD:-MM -MF %W{!o: %b.d}%W{o*:%.d%*}}\
646 %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
647 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
648 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
649 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
650 %{ffast-math:-D__FAST_MATH__}\
651 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
652 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
653 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
654 %{fshow-column} %{fno-show-column}\
655 %{fleading-underscore} %{fno-leading-underscore}\
656 %{fno-operator-names} %{ftabstop=*} %{remap}\
657 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
660 /* NB: This is shared amongst all front-ends. */
661 static const char *cc1_options
=
662 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
663 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
664 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
665 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
666 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
667 %{--target-help:--target-help}\
668 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
669 %{fsyntax-only:-o %j} %{-param*}";
671 static const char *asm_options
=
672 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
674 static const char *invoke_as
=
675 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
677 /* Some compilers have limits on line lengths, and the multilib_select
678 and/or multilib_matches strings can be very long, so we build them at
680 static struct obstack multilib_obstack
;
681 static const char *multilib_select
;
682 static const char *multilib_matches
;
683 static const char *multilib_defaults
;
684 static const char *multilib_exclusions
;
685 #include "multilib.h"
687 /* Check whether a particular argument is a default argument. */
689 #ifndef MULTILIB_DEFAULTS
690 #define MULTILIB_DEFAULTS { "" }
693 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
697 struct user_specs
*next
;
698 const char *filename
;
701 static struct user_specs
*user_specs_head
, *user_specs_tail
;
703 /* This defines which switch letters take arguments. */
705 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
706 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
707 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
708 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
709 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
710 || (CHAR) == 'B' || (CHAR) == 'b')
712 #ifndef SWITCH_TAKES_ARG
713 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
716 /* This defines which multi-letter switches take arguments. */
718 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
719 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
720 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
721 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
722 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
723 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
724 || !strcmp (STR, "isystem") || !strcmp (STR, "-param") \
725 || !strcmp (STR, "specs") \
726 || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ"))
728 #ifndef WORD_SWITCH_TAKES_ARG
729 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
732 #ifdef HAVE_TARGET_EXECUTABLE_SUFFIX
733 /* This defines which switches stop a full compilation. */
734 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
735 ((CHAR) == 'c' || (CHAR) == 'S')
737 #ifndef SWITCH_CURTAILS_COMPILATION
738 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
739 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
743 /* Record the mapping from file suffixes for compilation specs. */
747 const char *suffix
; /* Use this compiler for input files
748 whose names end in this suffix. */
750 const char *spec
; /* To use this compiler, run this spec. */
752 const char *cpp_spec
; /* If non-NULL, substitute this spec
753 for `%C', rather than the usual
757 /* Pointer to a vector of `struct compiler' that gives the spec for
758 compiling a file, based on its suffix.
759 A file that does not end in any of these suffixes will be passed
760 unchanged to the loader and nothing else will be done to it.
762 An entry containing two 0s is used to terminate the vector.
764 If multiple entries match a file, the last matching one is used. */
766 static struct compiler
*compilers
;
768 /* Number of entries in `compilers', not counting the null terminator. */
770 static int n_compilers
;
772 /* The default list of file name suffixes and their compilation specs. */
774 static struct compiler default_compilers
[] =
776 /* Add lists of suffixes of known languages here. If those languages
777 were not present when we built the driver, we will hit these copies
778 and be given a more meaningful error than "file not used since
779 linking is not done". */
780 {".m", "#Objective-C", 0}, {".mi", "#Objective-C", 0},
781 {".cc", "#C++", 0}, {".cxx", "#C++", 0}, {".cpp", "#C++", 0},
782 {".cp", "#C++", 0}, {".c++", "#C++", 0}, {".C", "#C++", 0},
784 {".ads", "#Ada", 0}, {".adb", "#Ada", 0}, {".ada", "#Ada", 0},
785 {".f", "#Fortran", 0}, {".for", "#Fortran", 0}, {".fpp", "#Fortran", 0},
786 {".F", "#Fortran", 0}, {".FOR", "#Fortran", 0}, {".FPP", "#Fortran", 0},
787 {".r", "#Ratfor", 0},
788 {".p", "#Pascal", 0}, {".pas", "#Pascal", 0},
789 {".ch", "#Chill", 0}, {".chi", "#Chill", 0},
790 {".java", "#Java", 0}, {".class", "#Java", 0},
791 {".zip", "#Java", 0}, {".jar", "#Java", 0},
792 /* Next come the entries for C. */
795 /* cc1 has an integrated ISO C preprocessor. We should invoke the
796 external preprocessor if -save-temps or -traditional is given. */
797 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
799 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
800 %(cpp_options) %b.i \n\
801 cc1 -fpreprocessed %b.i %(cc1_options)}\
803 %{traditional|ftraditional|traditional-cpp:\
804 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
805 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
806 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
807 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
808 %{!fsyntax-only:%(invoke_as)}}}}", 0},
810 "%{!E:%e-E required when input is from standard input}\
811 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
812 {".h", "@c-header", 0},
814 "%{!E:%eCompilation of header file requested} \
815 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)", 0},
816 {".i", "@cpp-output", 0},
818 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0},
819 {".s", "@assembler", 0},
821 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}", 0},
822 {".S", "@assembler-with-cpp", 0},
823 {"@assembler-with-cpp",
824 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
825 %{!M:%{!MM:%{!E:%(invoke_as)}}}", 0},
827 /* Mark end of table */
831 /* Number of elements in default_compilers, not counting the terminator. */
833 static int n_default_compilers
834 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
836 /* A vector of options to give to the linker.
837 These options are accumulated by %x,
838 and substituted into the linker command with %X. */
839 static int n_linker_options
;
840 static char **linker_options
;
842 /* A vector of options to give to the assembler.
843 These options are accumulated by -Wa,
844 and substituted into the assembler command with %Y. */
845 static int n_assembler_options
;
846 static char **assembler_options
;
848 /* A vector of options to give to the preprocessor.
849 These options are accumulated by -Wp,
850 and substituted into the preprocessor command with %Z. */
851 static int n_preprocessor_options
;
852 static char **preprocessor_options
;
854 /* Define how to map long options into short ones. */
856 /* This structure describes one mapping. */
859 /* The long option's name. */
861 /* The equivalent short option. */
862 const char *equivalent
;
863 /* Argument info. A string of flag chars; NULL equals no options.
864 a => argument required.
865 o => argument optional.
866 j => join argument to equivalent, making one word.
867 * => require other text after NAME as an argument. */
868 const char *arg_info
;
871 /* This is the table of mappings. Mappings are tried sequentially
872 for each option encountered; the first one that matches, wins. */
874 struct option_map option_map
[] =
876 {"--all-warnings", "-Wall", 0},
877 {"--ansi", "-ansi", 0},
878 {"--assemble", "-S", 0},
879 {"--assert", "-A", "a"},
880 {"--classpath", "-fclasspath=", "aj"},
881 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
882 {"--comments", "-C", 0},
883 {"--compile", "-c", 0},
884 {"--debug", "-g", "oj"},
885 {"--define-macro", "-D", "aj"},
886 {"--dependencies", "-M", 0},
887 {"--dump", "-d", "a"},
888 {"--dumpbase", "-dumpbase", "a"},
889 {"--entry", "-e", 0},
890 {"--extra-warnings", "-W", 0},
891 {"--for-assembler", "-Wa", "a"},
892 {"--for-linker", "-Xlinker", "a"},
893 {"--force-link", "-u", "a"},
894 {"--imacros", "-imacros", "a"},
895 {"--include", "-include", "a"},
896 {"--include-barrier", "-I-", 0},
897 {"--include-directory", "-I", "aj"},
898 {"--include-directory-after", "-idirafter", "a"},
899 {"--include-prefix", "-iprefix", "a"},
900 {"--include-with-prefix", "-iwithprefix", "a"},
901 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
902 {"--include-with-prefix-after", "-iwithprefix", "a"},
903 {"--language", "-x", "a"},
904 {"--library-directory", "-L", "a"},
905 {"--machine", "-m", "aj"},
906 {"--machine-", "-m", "*j"},
907 {"--no-line-commands", "-P", 0},
908 {"--no-precompiled-includes", "-noprecomp", 0},
909 {"--no-standard-includes", "-nostdinc", 0},
910 {"--no-standard-libraries", "-nostdlib", 0},
911 {"--no-warnings", "-w", 0},
912 {"--optimize", "-O", "oj"},
913 {"--output", "-o", "a"},
914 {"--output-class-directory", "-foutput-class-dir=", "ja"},
915 {"--param", "--param", "a"},
916 {"--pedantic", "-pedantic", 0},
917 {"--pedantic-errors", "-pedantic-errors", 0},
918 {"--pipe", "-pipe", 0},
919 {"--prefix", "-B", "a"},
920 {"--preprocess", "-E", 0},
921 {"--print-search-dirs", "-print-search-dirs", 0},
922 {"--print-file-name", "-print-file-name=", "aj"},
923 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
924 {"--print-missing-file-dependencies", "-MG", 0},
925 {"--print-multi-lib", "-print-multi-lib", 0},
926 {"--print-multi-directory", "-print-multi-directory", 0},
927 {"--print-prog-name", "-print-prog-name=", "aj"},
928 {"--profile", "-p", 0},
929 {"--profile-blocks", "-a", 0},
930 {"--quiet", "-q", 0},
931 {"--save-temps", "-save-temps", 0},
932 {"--shared", "-shared", 0},
933 {"--silent", "-q", 0},
934 {"--specs", "-specs=", "aj"},
935 {"--static", "-static", 0},
936 {"--std", "-std=", "aj"},
937 {"--symbolic", "-symbolic", 0},
938 {"--target", "-b", "a"},
939 {"--time", "-time", 0},
940 {"--trace-includes", "-H", 0},
941 {"--traditional", "-traditional", 0},
942 {"--traditional-cpp", "-traditional-cpp", 0},
943 {"--trigraphs", "-trigraphs", 0},
944 {"--undefine-macro", "-U", "aj"},
945 {"--use-version", "-V", "a"},
946 {"--user-dependencies", "-MM", 0},
947 {"--verbose", "-v", 0},
948 {"--version", "-dumpversion", 0},
949 {"--warn-", "-W", "*j"},
950 {"--write-dependencies", "-MD", 0},
951 {"--write-user-dependencies", "-MMD", 0},
955 /* Translate the options described by *ARGCP and *ARGVP.
956 Make a new vector and store it back in *ARGVP,
957 and store its length in *ARGVC. */
960 translate_options (argcp
, argvp
)
962 const char *const **argvp
;
966 const char *const *argv
= *argvp
;
968 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
972 newv
[newindex
++] = argv
[i
++];
976 /* Translate -- options. */
977 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
980 /* Find a mapping that applies to this option. */
981 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
983 size_t optlen
= strlen (option_map
[j
].name
);
984 size_t arglen
= strlen (argv
[i
]);
985 size_t complen
= arglen
> optlen
? optlen
: arglen
;
986 const char *arginfo
= option_map
[j
].arg_info
;
991 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
998 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
999 if (strlen (option_map
[k
].name
) >= arglen
1000 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
1002 error ("Ambiguous abbreviation %s", argv
[i
]);
1006 if (k
!= ARRAY_SIZE (option_map
))
1010 if (arglen
> optlen
)
1012 /* If the option has an argument, accept that. */
1013 if (argv
[i
][optlen
] == '=')
1014 arg
= argv
[i
] + optlen
+ 1;
1016 /* If this mapping requires extra text at end of name,
1017 accept that as "argument". */
1018 else if (strchr (arginfo
, '*') != 0)
1019 arg
= argv
[i
] + optlen
;
1021 /* Otherwise, extra text at end means mismatch.
1022 Try other mappings. */
1027 else if (strchr (arginfo
, '*') != 0)
1029 error ("Incomplete `%s' option", option_map
[j
].name
);
1033 /* Handle arguments. */
1034 if (strchr (arginfo
, 'a') != 0)
1040 error ("Missing argument to `%s' option",
1041 option_map
[j
].name
);
1048 else if (strchr (arginfo
, '*') != 0)
1050 else if (strchr (arginfo
, 'o') == 0)
1053 error ("Extraneous argument to `%s' option",
1054 option_map
[j
].name
);
1058 /* Store the translation as one argv elt or as two. */
1059 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
1060 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1064 newv
[newindex
++] = option_map
[j
].equivalent
;
1065 newv
[newindex
++] = arg
;
1068 newv
[newindex
++] = option_map
[j
].equivalent
;
1076 /* Handle old-fashioned options--just copy them through,
1077 with their arguments. */
1078 else if (argv
[i
][0] == '-')
1080 const char *p
= argv
[i
] + 1;
1084 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1085 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1086 else if (WORD_SWITCH_TAKES_ARG (p
))
1087 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1088 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1091 else if (! strcmp (p
, "Xlinker"))
1094 /* Watch out for an option at the end of the command line that
1095 is missing arguments, and avoid skipping past the end of the
1097 if (nskip
+ i
> argc
)
1102 newv
[newindex
++] = argv
[i
++];
1107 /* Ordinary operands, or +e options. */
1108 newv
[newindex
++] = argv
[i
++];
1123 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1124 be considered whitespace. */
1125 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1127 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1141 /* Structures to keep track of prefixes to try when looking for files. */
1145 char *prefix
; /* String to prepend to the path. */
1146 struct prefix_list
*next
; /* Next in linked list. */
1147 int require_machine_suffix
; /* Don't use without machine_suffix. */
1148 /* 2 means try both machine_suffix and just_machine_suffix. */
1149 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1150 int priority
; /* Sort key - priority within list */
1155 struct prefix_list
*plist
; /* List of prefixes to try */
1156 int max_len
; /* Max length of a prefix in PLIST */
1157 const char *name
; /* Name of this list (used in config stuff) */
1160 /* List of prefixes to try when looking for executables. */
1162 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1164 /* List of prefixes to try when looking for startup (crt0) files. */
1166 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1168 /* List of prefixes to try when looking for include files. */
1170 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1172 /* Suffix to attach to directories searched for commands.
1173 This looks like `MACHINE/VERSION/'. */
1175 static const char *machine_suffix
= 0;
1177 /* Suffix to attach to directories searched for commands.
1178 This is just `MACHINE/'. */
1180 static const char *just_machine_suffix
= 0;
1182 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1184 static const char *gcc_exec_prefix
;
1186 /* Default prefixes to attach to command names. */
1188 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1189 #undef MD_EXEC_PREFIX
1190 #undef MD_STARTFILE_PREFIX
1191 #undef MD_STARTFILE_PREFIX_1
1194 /* If no prefixes defined, use the null string, which will disable them. */
1195 #ifndef MD_EXEC_PREFIX
1196 #define MD_EXEC_PREFIX ""
1198 #ifndef MD_STARTFILE_PREFIX
1199 #define MD_STARTFILE_PREFIX ""
1201 #ifndef MD_STARTFILE_PREFIX_1
1202 #define MD_STARTFILE_PREFIX_1 ""
1205 /* Supply defaults for the standard prefixes. */
1207 #ifndef STANDARD_EXEC_PREFIX
1208 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1210 #ifndef STANDARD_STARTFILE_PREFIX
1211 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1213 #ifndef TOOLDIR_BASE_PREFIX
1214 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1216 #ifndef STANDARD_BINDIR_PREFIX
1217 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1220 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1221 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1222 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1224 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1225 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1226 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1227 static const char *standard_startfile_prefix_1
= "/lib/";
1228 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1230 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1231 static const char *tooldir_prefix
;
1233 static const char *standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1235 /* Subdirectory to use for locating libraries. Set by
1236 set_multilib_dir based on the compilation options. */
1238 static const char *multilib_dir
;
1240 /* Structure to keep track of the specs that have been defined so far.
1241 These are accessed using %(specname) or %[specname] in a compiler
1246 /* The following 2 fields must be first */
1247 /* to allow EXTRA_SPECS to be initialized */
1248 const char *name
; /* name of the spec. */
1249 const char *ptr
; /* available ptr if no static pointer */
1251 /* The following fields are not initialized */
1252 /* by EXTRA_SPECS */
1253 const char **ptr_spec
; /* pointer to the spec itself. */
1254 struct spec_list
*next
; /* Next spec in linked list. */
1255 int name_len
; /* length of the name */
1256 int alloc_p
; /* whether string was allocated */
1259 #define INIT_STATIC_SPEC(NAME,PTR) \
1260 { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1262 /* List of statically defined specs. */
1263 static struct spec_list static_specs
[] =
1265 INIT_STATIC_SPEC ("asm", &asm_spec
),
1266 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1267 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1268 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1269 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1270 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1271 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1272 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1273 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1274 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1275 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1276 INIT_STATIC_SPEC ("link", &link_spec
),
1277 INIT_STATIC_SPEC ("lib", &lib_spec
),
1278 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1279 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1280 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1281 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1282 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1283 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1284 INIT_STATIC_SPEC ("version", &compiler_version
),
1285 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1286 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1287 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1288 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1289 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1290 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1291 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1292 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1293 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1294 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1297 #ifdef EXTRA_SPECS /* additional specs needed */
1298 /* Structure to keep track of just the first two args of a spec_list.
1299 That is all that the EXTRA_SPECS macro gives us. */
1306 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1307 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1310 /* List of dynamically allocates specs that have been defined so far. */
1312 static struct spec_list
*specs
= (struct spec_list
*) 0;
1314 /* Add appropriate libgcc specs to OBSTACK, taking into account
1315 various permutations of -shared-libgcc, -shared, and such. */
1318 init_gcc_specs (obstack
, shared_name
, static_name
)
1319 struct obstack
*obstack
;
1320 const char *shared_name
;
1321 const char *static_name
;
1325 /* If we see -shared-libgcc, then use the shared version. */
1326 sprintf (buffer
, "%%{shared-libgcc:%s}", shared_name
);
1327 obstack_grow (obstack
, buffer
, strlen (buffer
));
1328 /* If we see -static-libgcc, then use the static version. */
1329 sprintf (buffer
, "%%{static-libgcc:%s}", static_name
);
1330 obstack_grow (obstack
, buffer
, strlen (buffer
));
1331 /* Otherwise, if we see -shared, then use the shared version. */
1333 "%%{!shared-libgcc:%%{!static-libgcc:%%{shared:%s}}}",
1335 obstack_grow (obstack
, buffer
, strlen (buffer
));
1336 /* Otherwise, use the static version. */
1338 "%%{!shared-libgcc:%%{!static-libgcc:%%{!shared:%s}}}",
1340 obstack_grow (obstack
, buffer
, strlen (buffer
));
1343 /* Initialize the specs lookup routines. */
1348 struct spec_list
*next
= (struct spec_list
*) 0;
1349 struct spec_list
*sl
= (struct spec_list
*) 0;
1353 return; /* Already initialized. */
1356 notice ("Using builtin specs.\n");
1359 extra_specs
= (struct spec_list
*)
1360 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1362 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1364 sl
= &extra_specs
[i
];
1365 sl
->name
= extra_specs_1
[i
].name
;
1366 sl
->ptr
= extra_specs_1
[i
].ptr
;
1368 sl
->name_len
= strlen (sl
->name
);
1369 sl
->ptr_spec
= &sl
->ptr
;
1374 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1376 sl
= &static_specs
[i
];
1381 #ifdef ENABLE_SHARED_LIBGCC
1382 /* ??? If neither -shared-libgcc nor --static-libgcc was
1383 seen, then we should be making an educated guess. Some proposed
1384 heuristics for ELF include:
1386 (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1387 program will be doing dynamic loading, which will likely
1388 need the shared libgcc.
1390 (2) If "-ldl", then it's also a fair bet that we're doing
1393 (3) For each ET_DYN we're linking against (either through -lfoo
1394 or /some/path/foo.so), check to see whether it or one of
1395 its dependancies depends on a shared libgcc.
1399 If the runtime is fixed to look for program headers instead
1400 of calling __register_frame_info at all, for each object,
1401 use the shared libgcc if any EH symbol referenced.
1403 If crtstuff is fixed to not invoke __register_frame_info
1404 automatically, for each object, use the shared libgcc if
1405 any non-empty unwind section found.
1407 Doing any of this probably requires invoking an external program to
1408 do the actual object file scanning. */
1410 const char *p
= libgcc_spec
;
1413 /* Transform the extant libgcc_spec into one that uses the shared libgcc
1414 when given the proper command line arguments. */
1417 if (in_sep
&& *p
== '-' && strncmp (p
, "-lgcc", 5) == 0)
1419 init_gcc_specs (&obstack
,
1420 #ifdef NO_SHARED_LIBGCC_MULTILIB
1430 else if (in_sep
&& *p
== 'l' && strncmp (p
, "libgcc.a%s", 10) == 0)
1432 /* Ug. We don't know shared library extensions. Hope that
1433 systems that use this form don't do shared libraries. */
1434 init_gcc_specs (&obstack
,
1435 #ifdef NO_SHARED_LIBGCC_MULTILIB
1447 obstack_1grow (&obstack
, *p
);
1448 in_sep
= (*p
== ' ');
1453 obstack_1grow (&obstack
, '\0');
1454 libgcc_spec
= obstack_finish (&obstack
);
1461 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1462 removed; If the spec starts with a + then SPEC is added to the end of the
1466 set_spec (name
, spec
)
1470 struct spec_list
*sl
;
1471 const char *old_spec
;
1472 int name_len
= strlen (name
);
1475 /* If this is the first call, initialize the statically allocated specs. */
1478 struct spec_list
*next
= (struct spec_list
*) 0;
1479 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1481 sl
= &static_specs
[i
];
1488 /* See if the spec already exists. */
1489 for (sl
= specs
; sl
; sl
= sl
->next
)
1490 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1495 /* Not found - make it. */
1496 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1497 sl
->name
= xstrdup (name
);
1498 sl
->name_len
= name_len
;
1499 sl
->ptr_spec
= &sl
->ptr
;
1501 *(sl
->ptr_spec
) = "";
1506 old_spec
= *(sl
->ptr_spec
);
1507 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1508 ? concat (old_spec
, spec
+ 1, NULL
)
1513 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1516 /* Free the old spec. */
1517 if (old_spec
&& sl
->alloc_p
)
1518 free ((PTR
) old_spec
);
1523 /* Accumulate a command (program name and args), and run it. */
1525 /* Vector of pointers to arguments in the current line of specifications. */
1527 static const char **argbuf
;
1529 /* Number of elements allocated in argbuf. */
1531 static int argbuf_length
;
1533 /* Number of elements in argbuf currently in use (containing args). */
1535 static int argbuf_index
;
1537 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1538 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1541 static struct temp_name
{
1542 const char *suffix
; /* suffix associated with the code. */
1543 int length
; /* strlen (suffix). */
1544 int unique
; /* Indicates whether %g or %u/%U was used. */
1545 const char *filename
; /* associated filename. */
1546 int filename_length
; /* strlen (filename). */
1547 struct temp_name
*next
;
1550 /* Number of commands executed so far. */
1552 static int execution_count
;
1554 /* Number of commands that exited with a signal. */
1556 static int signal_count
;
1558 /* Name with which this program was invoked. */
1560 static const char *programname
;
1562 /* Clear out the vector of arguments (after a command is executed). */
1570 /* Add one argument to the vector at the end.
1571 This is done when a space is seen or at the end of the line.
1572 If DELETE_ALWAYS is nonzero, the arg is a filename
1573 and the file should be deleted eventually.
1574 If DELETE_FAILURE is nonzero, the arg is a filename
1575 and the file should be deleted if this compilation fails. */
1578 store_arg (arg
, delete_always
, delete_failure
)
1580 int delete_always
, delete_failure
;
1582 if (argbuf_index
+ 1 == argbuf_length
)
1584 = (const char **) xrealloc (argbuf
,
1585 (argbuf_length
*= 2) * sizeof (const char *));
1587 argbuf
[argbuf_index
++] = arg
;
1588 argbuf
[argbuf_index
] = 0;
1590 if (delete_always
|| delete_failure
)
1591 record_temp_file (arg
, delete_always
, delete_failure
);
1594 /* Load specs from a file name named FILENAME, replacing occurances of
1595 various different types of line-endings, \r\n, \n\r and just \r, with
1599 load_specs (filename
)
1600 const char *filename
;
1604 struct stat statbuf
;
1611 notice ("Reading specs from %s\n", filename
);
1613 /* Open and stat the file. */
1614 desc
= open (filename
, O_RDONLY
, 0);
1616 pfatal_with_name (filename
);
1617 if (stat (filename
, &statbuf
) < 0)
1618 pfatal_with_name (filename
);
1620 /* Read contents of file into BUFFER. */
1621 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1622 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1624 pfatal_with_name (filename
);
1625 buffer
[readlen
] = 0;
1628 specs
= xmalloc (readlen
+ 1);
1630 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1636 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1638 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1652 /* Read compilation specs from a file named FILENAME,
1653 replacing the default ones.
1655 A suffix which starts with `*' is a definition for
1656 one of the machine-specific sub-specs. The "suffix" should be
1657 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1658 The corresponding spec is stored in asm_spec, etc.,
1659 rather than in the `compilers' vector.
1661 Anything invalid in the file is a fatal error. */
1664 read_specs (filename
, main_p
)
1665 const char *filename
;
1671 buffer
= load_specs (filename
);
1673 /* Scan BUFFER for specs, putting them in the vector. */
1679 char *in
, *out
, *p1
, *p2
, *p3
;
1681 /* Advance P in BUFFER to the next nonblank nocomment line. */
1682 p
= skip_whitespace (p
);
1686 /* Is this a special command that starts with '%'? */
1687 /* Don't allow this for the main specs file, since it would
1688 encourage people to overwrite it. */
1689 if (*p
== '%' && !main_p
)
1692 while (*p
&& *p
!= '\n')
1698 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1699 && (p1
[sizeof "%include" - 1] == ' '
1700 || p1
[sizeof "%include" - 1] == '\t'))
1704 p1
+= sizeof ("%include");
1705 while (*p1
== ' ' || *p1
== '\t')
1708 if (*p1
++ != '<' || p
[-2] != '>')
1709 fatal ("specs %%include syntax malformed after %ld characters",
1710 (long) (p1
- buffer
+ 1));
1713 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1714 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1717 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1718 && (p1
[sizeof "%include_noerr" - 1] == ' '
1719 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1723 p1
+= sizeof "%include_noerr";
1724 while (*p1
== ' ' || *p1
== '\t')
1727 if (*p1
++ != '<' || p
[-2] != '>')
1728 fatal ("specs %%include syntax malformed after %ld characters",
1729 (long) (p1
- buffer
+ 1));
1732 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1734 read_specs (new_filename
, FALSE
);
1735 else if (verbose_flag
)
1736 notice ("Could not find specs file %s\n", p1
);
1739 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1740 && (p1
[sizeof "%rename" - 1] == ' '
1741 || p1
[sizeof "%rename" - 1] == '\t'))
1744 struct spec_list
*sl
;
1746 /* Get original name */
1747 p1
+= sizeof "%rename";
1748 while (*p1
== ' ' || *p1
== '\t')
1751 if (! ISALPHA ((unsigned char) *p1
))
1752 fatal ("specs %%rename syntax malformed after %ld characters",
1753 (long) (p1
- buffer
));
1756 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1759 if (*p2
!= ' ' && *p2
!= '\t')
1760 fatal ("specs %%rename syntax malformed after %ld characters",
1761 (long) (p2
- buffer
));
1765 while (*p2
== ' ' || *p2
== '\t')
1768 if (! ISALPHA ((unsigned char) *p2
))
1769 fatal ("specs %%rename syntax malformed after %ld characters",
1770 (long) (p2
- buffer
));
1772 /* Get new spec name. */
1774 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1778 fatal ("specs %%rename syntax malformed after %ld characters",
1779 (long) (p3
- buffer
));
1782 for (sl
= specs
; sl
; sl
= sl
->next
)
1783 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1787 fatal ("specs %s spec was not found to be renamed", p1
);
1789 if (strcmp (p1
, p2
) == 0)
1794 notice ("rename spec %s to %s\n", p1
, p2
);
1796 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1800 set_spec (p2
, *(sl
->ptr_spec
));
1802 free ((PTR
) *(sl
->ptr_spec
));
1804 *(sl
->ptr_spec
) = "";
1809 fatal ("specs unknown %% command after %ld characters",
1810 (long) (p1
- buffer
));
1813 /* Find the colon that should end the suffix. */
1815 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1818 /* The colon shouldn't be missing. */
1820 fatal ("specs file malformed after %ld characters",
1821 (long) (p1
- buffer
));
1823 /* Skip back over trailing whitespace. */
1825 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1828 /* Copy the suffix to a string. */
1829 suffix
= save_string (p
, p2
- p
);
1830 /* Find the next line. */
1831 p
= skip_whitespace (p1
+ 1);
1833 fatal ("specs file malformed after %ld characters",
1834 (long) (p
- buffer
));
1837 /* Find next blank line or end of string. */
1838 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1841 /* Specs end at the blank line and do not include the newline. */
1842 spec
= save_string (p
, p1
- p
);
1845 /* Delete backslash-newline sequences from the spec. */
1850 if (in
[0] == '\\' && in
[1] == '\n')
1852 else if (in
[0] == '#')
1853 while (*in
&& *in
!= '\n')
1861 if (suffix
[0] == '*')
1863 if (! strcmp (suffix
, "*link_command"))
1864 link_command_spec
= spec
;
1866 set_spec (suffix
+ 1, spec
);
1870 /* Add this pair to the vector. */
1872 = ((struct compiler
*)
1873 xrealloc (compilers
,
1874 (n_compilers
+ 2) * sizeof (struct compiler
)));
1876 compilers
[n_compilers
].suffix
= suffix
;
1877 compilers
[n_compilers
].spec
= spec
;
1879 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1883 link_command_spec
= spec
;
1886 if (link_command_spec
== 0)
1887 fatal ("spec file has no spec for linking");
1890 /* Record the names of temporary files we tell compilers to write,
1891 and delete them at the end of the run. */
1893 /* This is the common prefix we use to make temp file names.
1894 It is chosen once for each run of this program.
1895 It is substituted into a spec by %g or %j.
1896 Thus, all temp file names contain this prefix.
1897 In practice, all temp file names start with this prefix.
1899 This prefix comes from the envvar TMPDIR if it is defined;
1900 otherwise, from the P_tmpdir macro if that is defined;
1901 otherwise, in /usr/tmp or /tmp;
1902 or finally the current directory if all else fails. */
1904 static const char *temp_filename
;
1906 /* Length of the prefix. */
1908 static int temp_filename_length
;
1910 /* Define the list of temporary files to delete. */
1915 struct temp_file
*next
;
1918 /* Queue of files to delete on success or failure of compilation. */
1919 static struct temp_file
*always_delete_queue
;
1920 /* Queue of files to delete on failure of compilation. */
1921 static struct temp_file
*failure_delete_queue
;
1923 /* Record FILENAME as a file to be deleted automatically.
1924 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1925 otherwise delete it in any case.
1926 FAIL_DELETE nonzero means delete it if a compilation step fails;
1927 otherwise delete it in any case. */
1930 record_temp_file (filename
, always_delete
, fail_delete
)
1931 const char *filename
;
1935 register char *const name
= xstrdup (filename
);
1939 register struct temp_file
*temp
;
1940 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1941 if (! strcmp (name
, temp
->name
))
1944 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1945 temp
->next
= always_delete_queue
;
1947 always_delete_queue
= temp
;
1954 register struct temp_file
*temp
;
1955 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1956 if (! strcmp (name
, temp
->name
))
1959 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1960 temp
->next
= failure_delete_queue
;
1962 failure_delete_queue
= temp
;
1968 /* Delete all the temporary files whose names we previously recorded. */
1971 delete_if_ordinary (name
)
1978 printf ("Delete %s? (y or n) ", name
);
1982 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1985 if (i
== 'y' || i
== 'Y')
1987 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1988 if (unlink (name
) < 0)
1990 perror_with_name (name
);
1994 delete_temp_files ()
1996 register struct temp_file
*temp
;
1998 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1999 delete_if_ordinary (temp
->name
);
2000 always_delete_queue
= 0;
2003 /* Delete all the files to be deleted on error. */
2006 delete_failure_queue ()
2008 register struct temp_file
*temp
;
2010 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2011 delete_if_ordinary (temp
->name
);
2015 clear_failure_queue ()
2017 failure_delete_queue
= 0;
2020 /* Build a list of search directories from PATHS.
2021 PREFIX is a string to prepend to the list.
2022 If CHECK_DIR_P is non-zero we ensure the directory exists.
2023 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2024 It is also used by the --print-search-dirs flag. */
2027 build_search_list (paths
, prefix
, check_dir_p
)
2028 struct path_prefix
*paths
;
2032 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2034 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2035 int first_time
= TRUE
;
2036 struct prefix_list
*pprefix
;
2038 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2039 obstack_1grow (&collect_obstack
, '=');
2041 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2043 int len
= strlen (pprefix
->prefix
);
2047 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2050 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2053 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2054 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2057 if (just_machine_suffix
2058 && pprefix
->require_machine_suffix
== 2
2060 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2063 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2066 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2067 obstack_grow (&collect_obstack
, just_machine_suffix
,
2071 if (! pprefix
->require_machine_suffix
)
2074 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2077 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2081 obstack_1grow (&collect_obstack
, '\0');
2082 return obstack_finish (&collect_obstack
);
2085 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2089 putenv_from_prefixes (paths
, env_var
)
2090 struct path_prefix
*paths
;
2091 const char *env_var
;
2093 putenv (build_search_list (paths
, env_var
, 1));
2098 /* FIXME: the location independence code for VMS is hairier than this,
2099 and hasn't been written. */
2101 /* Split a filename into component directories. */
2104 split_directories (name
, ptr_num_dirs
)
2113 /* Count the number of directories. Special case MSDOS disk names as part
2114 of the initial directory. */
2116 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2117 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2122 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2124 while ((ch
= *p
++) != '\0')
2126 if (IS_DIR_SEPARATOR (ch
))
2129 while (IS_DIR_SEPARATOR (*p
))
2134 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2136 /* Now copy the directory parts. */
2139 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2140 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2142 dirs
[num_dirs
++] = save_string (p
, 3);
2145 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2148 while ((ch
= *p
++) != '\0')
2150 if (IS_DIR_SEPARATOR (ch
))
2152 while (IS_DIR_SEPARATOR (*p
))
2155 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2161 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2163 dirs
[num_dirs
] = NULL
;
2165 *ptr_num_dirs
= num_dirs
;
2170 /* Release storage held by split directories. */
2173 free_split_directories (dirs
)
2178 while (dirs
[i
] != NULL
)
2181 free ((char *) dirs
);
2184 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2185 to PREFIX starting with the directory portion of PROGNAME and a relative
2186 pathname of the difference between BIN_PREFIX and PREFIX.
2188 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2189 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2190 function will return /red/green/blue/../omega.
2192 If no relative prefix can be found, return NULL. */
2195 make_relative_prefix (progname
, bin_prefix
, prefix
)
2196 const char *progname
;
2197 const char *bin_prefix
;
2200 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2201 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2204 prog_dirs
= split_directories (progname
, &prog_num
);
2205 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2207 /* If there is no full pathname, try to find the program by checking in each
2208 of the directories specified in the PATH environment variable. */
2213 GET_ENV_PATH_LIST (temp
, "PATH");
2216 char *startp
, *endp
;
2217 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2219 startp
= endp
= temp
;
2222 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2227 nstore
[1] = DIR_SEPARATOR
;
2232 strncpy (nstore
, startp
, endp
- startp
);
2233 if (! IS_DIR_SEPARATOR (endp
[-1]))
2235 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2236 nstore
[endp
- startp
+ 1] = 0;
2239 nstore
[endp
- startp
] = 0;
2241 strcat (nstore
, progname
);
2242 if (! access (nstore
, X_OK
)
2243 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2244 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2248 free_split_directories (prog_dirs
);
2250 prog_dirs
= split_directories (progname
, &prog_num
);
2256 endp
= startp
= endp
+ 1;
2264 /* Remove the program name from comparison of directory names. */
2267 /* Determine if the compiler is installed in the standard location, and if
2268 so, we don't need to specify relative directories. Also, if argv[0]
2269 doesn't contain any directory specifiers, there is not much we can do. */
2271 if (prog_num
== bin_num
)
2273 for (i
= 0; i
< bin_num
; i
++)
2275 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2279 if (prog_num
<= 0 || i
== bin_num
)
2282 free_split_directories (prog_dirs
);
2283 free_split_directories (bin_dirs
);
2284 prog_dirs
= bin_dirs
= (char **) 0;
2289 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2291 /* Find how many directories are in common between bin_prefix & prefix. */
2292 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2293 for (common
= 0; common
< n
; common
++)
2295 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2299 /* If there are no common directories, there can be no relative prefix. */
2302 free_split_directories (prog_dirs
);
2303 free_split_directories (bin_dirs
);
2304 free_split_directories (prefix_dirs
);
2308 /* Build up the pathnames in argv[0]. */
2309 for (i
= 0; i
< prog_num
; i
++)
2310 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2312 /* Now build up the ..'s. */
2313 for (i
= common
; i
< n
; i
++)
2315 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2316 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2319 /* Put in directories to move over to prefix. */
2320 for (i
= common
; i
< prefix_num
; i
++)
2321 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2323 free_split_directories (prog_dirs
);
2324 free_split_directories (bin_dirs
);
2325 free_split_directories (prefix_dirs
);
2327 obstack_1grow (&obstack
, '\0');
2328 return obstack_finish (&obstack
);
2332 /* Check whether NAME can be accessed in MODE. This is like access,
2333 except that it never considers directories to be executable. */
2336 access_check (name
, mode
)
2344 if (stat (name
, &st
) < 0
2345 || S_ISDIR (st
.st_mode
))
2349 return access (name
, mode
);
2352 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2353 access to check permissions.
2354 Return 0 if not found, otherwise return its name, allocated with malloc. */
2357 find_a_file (pprefix
, name
, mode
)
2358 struct path_prefix
*pprefix
;
2363 const char *file_suffix
= ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2364 struct prefix_list
*pl
;
2365 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2367 #ifdef DEFAULT_ASSEMBLER
2368 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2369 return xstrdup (DEFAULT_ASSEMBLER
);
2372 #ifdef DEFAULT_LINKER
2373 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2374 return xstrdup (DEFAULT_LINKER
);
2378 len
+= strlen (machine_suffix
);
2380 temp
= xmalloc (len
);
2382 /* Determine the filename to execute (special case for absolute paths). */
2384 if (IS_ABSOLUTE_PATHNAME (name
))
2386 if (access (name
, mode
) == 0)
2388 strcpy (temp
, name
);
2393 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2397 /* Some systems have a suffix for executable files.
2398 So try appending that first. */
2399 if (file_suffix
[0] != 0)
2401 strcpy (temp
, pl
->prefix
);
2402 strcat (temp
, machine_suffix
);
2403 strcat (temp
, name
);
2404 strcat (temp
, file_suffix
);
2405 if (access_check (temp
, mode
) == 0)
2407 if (pl
->used_flag_ptr
!= 0)
2408 *pl
->used_flag_ptr
= 1;
2413 /* Now try just the name. */
2414 strcpy (temp
, pl
->prefix
);
2415 strcat (temp
, machine_suffix
);
2416 strcat (temp
, name
);
2417 if (access_check (temp
, mode
) == 0)
2419 if (pl
->used_flag_ptr
!= 0)
2420 *pl
->used_flag_ptr
= 1;
2425 /* Certain prefixes are tried with just the machine type,
2426 not the version. This is used for finding as, ld, etc. */
2427 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2429 /* Some systems have a suffix for executable files.
2430 So try appending that first. */
2431 if (file_suffix
[0] != 0)
2433 strcpy (temp
, pl
->prefix
);
2434 strcat (temp
, just_machine_suffix
);
2435 strcat (temp
, name
);
2436 strcat (temp
, file_suffix
);
2437 if (access_check (temp
, mode
) == 0)
2439 if (pl
->used_flag_ptr
!= 0)
2440 *pl
->used_flag_ptr
= 1;
2445 strcpy (temp
, pl
->prefix
);
2446 strcat (temp
, just_machine_suffix
);
2447 strcat (temp
, name
);
2448 if (access_check (temp
, mode
) == 0)
2450 if (pl
->used_flag_ptr
!= 0)
2451 *pl
->used_flag_ptr
= 1;
2456 /* Certain prefixes can't be used without the machine suffix
2457 when the machine or version is explicitly specified. */
2458 if (! pl
->require_machine_suffix
)
2460 /* Some systems have a suffix for executable files.
2461 So try appending that first. */
2462 if (file_suffix
[0] != 0)
2464 strcpy (temp
, pl
->prefix
);
2465 strcat (temp
, name
);
2466 strcat (temp
, file_suffix
);
2467 if (access_check (temp
, mode
) == 0)
2469 if (pl
->used_flag_ptr
!= 0)
2470 *pl
->used_flag_ptr
= 1;
2475 strcpy (temp
, pl
->prefix
);
2476 strcat (temp
, name
);
2477 if (access_check (temp
, mode
) == 0)
2479 if (pl
->used_flag_ptr
!= 0)
2480 *pl
->used_flag_ptr
= 1;
2490 /* Ranking of prefixes in the sort list. -B prefixes are put before
2493 enum path_prefix_priority
2495 PREFIX_PRIORITY_B_OPT
,
2496 PREFIX_PRIORITY_LAST
2499 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2500 order according to PRIORITY. Within each PRIORITY, new entries are
2503 If WARN is nonzero, we will warn if no file is found
2504 through this prefix. WARN should point to an int
2505 which will be set to 1 if this entry is used.
2507 COMPONENT is the value to be passed to update_path.
2509 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2510 the complete value of machine_suffix.
2511 2 means try both machine_suffix and just_machine_suffix. */
2514 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2515 struct path_prefix
*pprefix
;
2517 const char *component
;
2518 /* enum prefix_priority */ int priority
;
2519 int require_machine_suffix
;
2522 struct prefix_list
*pl
, **prev
;
2525 for (prev
= &pprefix
->plist
;
2526 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2527 prev
= &(*prev
)->next
)
2530 /* Keep track of the longest prefix */
2532 prefix
= update_path (prefix
, component
);
2533 len
= strlen (prefix
);
2534 if (len
> pprefix
->max_len
)
2535 pprefix
->max_len
= len
;
2537 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2538 pl
->prefix
= save_string (prefix
, len
);
2539 pl
->require_machine_suffix
= require_machine_suffix
;
2540 pl
->used_flag_ptr
= warn
;
2541 pl
->priority
= priority
;
2545 /* Insert after PREV */
2550 /* Execute the command specified by the arguments on the current line of spec.
2551 When using pipes, this includes several piped-together commands
2552 with `|' between them.
2554 Return 0 if successful, -1 if failed. */
2560 int n_commands
; /* # of command. */
2564 const char *prog
; /* program name. */
2565 const char **argv
; /* vector of args. */
2566 int pid
; /* pid of process for this command. */
2569 struct command
*commands
; /* each command buffer with above info. */
2571 /* Count # of piped commands. */
2572 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2573 if (strcmp (argbuf
[i
], "|") == 0)
2576 /* Get storage for each command. */
2577 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2579 /* Split argbuf into its separate piped processes,
2580 and record info about each one.
2581 Also search for the programs that are to be run. */
2583 commands
[0].prog
= argbuf
[0]; /* first command. */
2584 commands
[0].argv
= &argbuf
[0];
2585 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2588 commands
[0].argv
[0] = string
;
2590 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2591 if (strcmp (argbuf
[i
], "|") == 0)
2592 { /* each command. */
2593 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2594 fatal ("-pipe not supported");
2596 argbuf
[i
] = 0; /* termination of command args. */
2597 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2598 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2599 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2601 commands
[n_commands
].argv
[0] = string
;
2605 argbuf
[argbuf_index
] = 0;
2607 /* If -v, print what we are about to do, and maybe query. */
2611 /* For help listings, put a blank line between sub-processes. */
2612 if (print_help_list
)
2613 fputc ('\n', stderr
);
2615 /* Print each piped command as a separate line. */
2616 for (i
= 0; i
< n_commands
; i
++)
2618 const char *const *j
;
2620 for (j
= commands
[i
].argv
; *j
; j
++)
2621 fprintf (stderr
, " %s", *j
);
2623 /* Print a pipe symbol after all but the last command. */
2624 if (i
+ 1 != n_commands
)
2625 fprintf (stderr
, " |");
2626 fprintf (stderr
, "\n");
2630 notice ("\nGo ahead? (y or n) ");
2634 while (getchar () != '\n')
2637 if (i
!= 'y' && i
!= 'Y')
2642 /* Run each piped subprocess. */
2644 for (i
= 0; i
< n_commands
; i
++)
2646 char *errmsg_fmt
, *errmsg_arg
;
2647 const char *string
= commands
[i
].argv
[0];
2649 /* For some bizarre reason, the second argument of execvp() is
2650 char *const *, not const char *const *. */
2651 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2652 programname
, temp_filename
,
2653 &errmsg_fmt
, &errmsg_arg
,
2654 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2655 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2656 | (string
== commands
[i
].prog
2657 ? PEXECUTE_SEARCH
: 0)
2658 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2660 if (commands
[i
].pid
== -1)
2661 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2663 if (string
!= commands
[i
].prog
)
2664 free ((PTR
) string
);
2669 /* Wait for all the subprocesses to finish.
2670 We don't care what order they finish in;
2671 we know that N_COMMANDS waits will get them all.
2672 Ignore subprocesses that we don't know about,
2673 since they can be spawned by the process that exec'ed us. */
2677 #ifdef HAVE_GETRUSAGE
2679 double ut
= 0.0, st
= 0.0;
2682 for (i
= 0; i
< n_commands
;)
2688 pid
= pwait (commands
[i
].pid
, &status
, 0);
2692 #ifdef HAVE_GETRUSAGE
2695 /* getrusage returns the total resource usage of all children
2696 up to now. Copy the previous values into prus, get the
2697 current statistics, then take the difference. */
2700 getrusage (RUSAGE_CHILDREN
, &rus
);
2701 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2702 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2703 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2705 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2706 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2707 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2711 for (j
= 0; j
< n_commands
; j
++)
2712 if (commands
[j
].pid
== pid
)
2715 if (WIFSIGNALED (status
))
2718 /* SIGPIPE is a special case. It happens in -pipe mode
2719 when the compiler dies before the preprocessor is
2720 done, or the assembler dies before the compiler is
2721 done. There's generally been an error already, and
2722 this is just fallout. So don't generate another error
2723 unless we would otherwise have succeeded. */
2724 if (WTERMSIG (status
) == SIGPIPE
2725 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2730 Internal error: %s (program %s)\n\
2731 Please submit a full bug report.\n\
2732 See %s for instructions.",
2733 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2738 else if (WIFEXITED (status
)
2739 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2741 if (WEXITSTATUS (status
) > greatest_status
)
2742 greatest_status
= WEXITSTATUS (status
);
2745 #ifdef HAVE_GETRUSAGE
2746 if (report_times
&& ut
+ st
!= 0)
2747 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2756 /* Find all the switches given to us
2757 and make a vector describing them.
2758 The elements of the vector are strings, one per switch given.
2759 If a switch uses following arguments, then the `part1' field
2760 is the switch itself and the `args' field
2761 is a null-terminated vector containing the following arguments.
2762 The `live_cond' field is:
2764 1 if the switch is true in a conditional spec,
2765 -1 if false (overridden by a later switch)
2766 -2 if this switch should be ignored (used in %{<S})
2767 The `validated' field is nonzero if any spec has looked at this switch;
2768 if it remains zero at the end of the run, it must be meaningless. */
2771 #define SWITCH_FALSE -1
2772 #define SWITCH_IGNORE -2
2773 #define SWITCH_LIVE 1
2780 unsigned char validated
;
2781 unsigned char ordering
;
2784 static struct switchstr
*switches
;
2786 static int n_switches
;
2791 const char *language
;
2794 /* Also a vector of input files specified. */
2796 static struct infile
*infiles
;
2798 static int n_infiles
;
2800 /* This counts the number of libraries added by lang_specific_driver, so that
2801 we can tell if there were any user supplied any files or libraries. */
2803 static int added_libraries
;
2805 /* And a vector of corresponding output files is made up later. */
2807 static const char **outfiles
;
2809 /* Used to track if none of the -B paths are used. */
2812 /* Used to track if standard path isn't used and -b or -V is specified. */
2813 static int warn_std
;
2815 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2816 static int *warn_std_ptr
= 0;
2818 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2820 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2821 is true if we should look for an executable suffix as well. */
2824 convert_filename (name
, do_exe
)
2834 len
= strlen (name
);
2836 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2837 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2839 && name
[len
- 2] == '.'
2840 && name
[len
- 1] == 'o')
2842 obstack_grow (&obstack
, name
, len
- 2);
2843 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2844 name
= obstack_finish (&obstack
);
2848 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2849 /* If there is no filetype, make it the executable suffix (which includes
2850 the "."). But don't get confused if we have just "-o". */
2851 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2854 for (i
= len
- 1; i
>= 0; i
--)
2855 if (IS_DIR_SEPARATOR (name
[i
]))
2858 for (i
++; i
< len
; i
++)
2862 obstack_grow (&obstack
, name
, len
);
2863 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
, strlen (TARGET_EXECUTABLE_SUFFIX
));
2864 name
= obstack_finish (&obstack
);
2871 /* Display the command line switches accepted by gcc. */
2875 printf (_("Usage: %s [options] file...\n"), programname
);
2876 fputs (_("Options:\n"), stdout
);
2878 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2879 fputs (_(" --help Display this information\n"), stdout
);
2880 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2882 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2883 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2884 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2885 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2886 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2887 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2888 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2889 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2890 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2892 -print-multi-lib Display the mapping between command line options and\n\
2893 multiple library search directories\n"), stdout
);
2894 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2895 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2896 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2897 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2898 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2899 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2900 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2901 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
2902 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2903 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2904 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2905 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2906 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2907 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2908 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2909 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2910 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2912 -x <language> Specify the language of the following input files\n\
2913 Permissable languages include: c c++ assembler none\n\
2914 'none' means revert to the default behaviour of\n\
2915 guessing the language based on the file's extension\n\
2919 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2920 passed on to the various sub-processes invoked by %s. In order to pass\n\
2921 other options on to these processes the -W<letter> options must be used.\n\
2924 /* The rest of the options are displayed by invocations of the various
2929 add_preprocessor_option (option
, len
)
2933 n_preprocessor_options
++;
2935 if (! preprocessor_options
)
2936 preprocessor_options
2937 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2939 preprocessor_options
2940 = (char **) xrealloc (preprocessor_options
,
2941 n_preprocessor_options
* sizeof (char *));
2943 preprocessor_options
[n_preprocessor_options
- 1] =
2944 save_string (option
, len
);
2948 add_assembler_option (option
, len
)
2952 n_assembler_options
++;
2954 if (! assembler_options
)
2956 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2959 = (char **) xrealloc (assembler_options
,
2960 n_assembler_options
* sizeof (char *));
2962 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2966 add_linker_option (option
, len
)
2972 if (! linker_options
)
2974 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2977 = (char **) xrealloc (linker_options
,
2978 n_linker_options
* sizeof (char *));
2980 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2983 /* Create the vector `switches' and its contents.
2984 Store its length in `n_switches'. */
2987 process_command (argc
, argv
)
2989 const char *const *argv
;
2994 const char *spec_lang
= 0;
2995 int last_language_n_infiles
;
2998 int lang_n_infiles
= 0;
2999 #ifdef MODIFY_TARGET_NAME
3000 int is_modify_target_name
;
3004 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3008 added_libraries
= 0;
3010 /* Figure compiler version from version string. */
3012 compiler_version
= temp1
= xstrdup (version_string
);
3014 for (; *temp1
; ++temp1
)
3023 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3024 see if we can create it from the pathname specified in argv[0]. */
3027 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3028 if (!gcc_exec_prefix
)
3030 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3031 standard_exec_prefix
);
3032 if (gcc_exec_prefix
)
3033 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3037 if (gcc_exec_prefix
)
3039 int len
= strlen (gcc_exec_prefix
);
3041 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3042 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3044 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3045 if (IS_DIR_SEPARATOR (*temp
)
3046 && strncmp (temp
+ 1, "lib", 3) == 0
3047 && IS_DIR_SEPARATOR (temp
[4])
3048 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3049 len
-= sizeof ("/lib/gcc-lib/") - 1;
3052 set_std_prefix (gcc_exec_prefix
, len
);
3053 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3054 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3055 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3056 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3059 /* COMPILER_PATH and LIBRARY_PATH have values
3060 that are lists of directory names with colons. */
3062 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3065 const char *startp
, *endp
;
3066 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3068 startp
= endp
= temp
;
3071 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3073 strncpy (nstore
, startp
, endp
- startp
);
3075 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3076 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3078 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3079 nstore
[endp
- startp
+ 1] = 0;
3082 nstore
[endp
- startp
] = 0;
3083 add_prefix (&exec_prefixes
, nstore
, 0,
3084 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3085 add_prefix (&include_prefixes
,
3086 concat (nstore
, "include", NULL
),
3087 0, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3090 endp
= startp
= endp
+ 1;
3097 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3098 if (temp
&& *cross_compile
== '0')
3100 const char *startp
, *endp
;
3101 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3103 startp
= endp
= temp
;
3106 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3108 strncpy (nstore
, startp
, endp
- startp
);
3110 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3111 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3113 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3114 nstore
[endp
- startp
+ 1] = 0;
3117 nstore
[endp
- startp
] = 0;
3118 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3119 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3122 endp
= startp
= endp
+ 1;
3129 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3130 GET_ENV_PATH_LIST (temp
, "LPATH");
3131 if (temp
&& *cross_compile
== '0')
3133 const char *startp
, *endp
;
3134 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3136 startp
= endp
= temp
;
3139 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3141 strncpy (nstore
, startp
, endp
- startp
);
3143 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3144 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3146 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3147 nstore
[endp
- startp
+ 1] = 0;
3150 nstore
[endp
- startp
] = 0;
3151 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3152 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3155 endp
= startp
= endp
+ 1;
3162 /* Convert new-style -- options to old-style. */
3163 translate_options (&argc
, &argv
);
3165 /* Do language-specific adjustment/addition of flags. */
3166 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3168 /* Scan argv twice. Here, the first time, just count how many switches
3169 there will be in their vector, and how many input files in theirs.
3170 Also parse any switches that determine the configuration name, such as -b.
3171 Here we also parse the switches that cc itself uses (e.g. -v). */
3173 for (i
= 1; i
< argc
; i
++)
3175 if (! strcmp (argv
[i
], "-dumpspecs"))
3177 struct spec_list
*sl
;
3179 for (sl
= specs
; sl
; sl
= sl
->next
)
3180 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3181 if (link_command_spec
)
3182 printf ("*link_command:\n%s\n\n", link_command_spec
);
3185 else if (! strcmp (argv
[i
], "-dumpversion"))
3187 printf ("%s\n", spec_version
);
3190 else if (! strcmp (argv
[i
], "-dumpmachine"))
3192 printf ("%s\n", spec_machine
);
3195 else if (strcmp (argv
[i
], "-fhelp") == 0)
3197 /* translate_options () has turned --help into -fhelp. */
3198 print_help_list
= 1;
3200 /* We will be passing a dummy file on to the sub-processes. */
3204 add_preprocessor_option ("--help", 6);
3205 add_assembler_option ("--help", 6);
3206 add_linker_option ("--help", 6);
3208 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3210 /* translate_options() has turned --target-help into -ftarget-help. */
3211 target_help_flag
= 1;
3213 /* We will be passing a dummy file on to the sub-processes. */
3217 add_preprocessor_option ("--target-help", 13);
3218 add_assembler_option ("--target-help", 13);
3219 add_linker_option ("--target-help", 13);
3221 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3223 pass_exit_codes
= 1;
3226 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3227 print_search_dirs
= 1;
3228 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3229 print_file_name
= "libgcc.a";
3230 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3231 print_file_name
= argv
[i
] + 17;
3232 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3233 print_prog_name
= argv
[i
] + 17;
3234 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3235 print_multi_lib
= 1;
3236 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3237 print_multi_directory
= 1;
3238 else if (! strncmp (argv
[i
], "-Wa,", 4))
3241 /* Pass the rest of this option to the assembler. */
3243 /* Split the argument at commas. */
3245 for (j
= 4; argv
[i
][j
]; j
++)
3246 if (argv
[i
][j
] == ',')
3248 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3252 /* Record the part after the last comma. */
3253 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3255 else if (! strncmp (argv
[i
], "-Wp,", 4))
3258 /* Pass the rest of this option to the preprocessor. */
3260 /* Split the argument at commas. */
3262 for (j
= 4; argv
[i
][j
]; j
++)
3263 if (argv
[i
][j
] == ',')
3265 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3269 /* Record the part after the last comma. */
3270 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3272 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3273 /* The +e options to the C++ front-end. */
3275 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3278 /* Split the argument at commas. */
3279 for (j
= 3; argv
[i
][j
]; j
++)
3280 n_infiles
+= (argv
[i
][j
] == ',');
3282 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3285 fatal ("argument to `-Xlinker' is missing");
3290 else if (strcmp (argv
[i
], "-l") == 0)
3293 fatal ("argument to `-l' is missing");
3298 else if (strncmp (argv
[i
], "-l", 2) == 0)
3300 else if (strcmp (argv
[i
], "-save-temps") == 0)
3302 save_temps_flag
= 1;
3305 else if (strcmp (argv
[i
], "-specs") == 0)
3307 struct user_specs
*user
= (struct user_specs
*)
3308 xmalloc (sizeof (struct user_specs
));
3310 fatal ("argument to `-specs' is missing");
3312 user
->next
= (struct user_specs
*) 0;
3313 user
->filename
= argv
[i
];
3314 if (user_specs_tail
)
3315 user_specs_tail
->next
= user
;
3317 user_specs_head
= user
;
3318 user_specs_tail
= user
;
3320 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3322 struct user_specs
*user
= (struct user_specs
*)
3323 xmalloc (sizeof (struct user_specs
));
3324 if (strlen (argv
[i
]) == 7)
3325 fatal ("argument to `-specs=' is missing");
3327 user
->next
= (struct user_specs
*) 0;
3328 user
->filename
= argv
[i
] + 7;
3329 if (user_specs_tail
)
3330 user_specs_tail
->next
= user
;
3332 user_specs_head
= user
;
3333 user_specs_tail
= user
;
3335 else if (strcmp (argv
[i
], "-time") == 0)
3337 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3339 register const char *p
= &argv
[i
][1];
3340 register int c
= *p
;
3346 if (p
[1] == 0 && i
+ 1 == argc
)
3347 fatal ("argument to `-b' is missing");
3349 spec_machine
= argv
[++i
];
3351 spec_machine
= p
+ 1;
3353 warn_std_ptr
= &warn_std
;
3359 if (p
[1] == 0 && i
+ 1 == argc
)
3360 fatal ("argument to `-B' is missing");
3366 /* As a kludge, if the arg is "[foo/]stageN/", just
3367 add "[foo/]include" to the include prefix. */
3368 int len
= strlen (value
);
3371 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3372 && strncmp (value
+ len
- 7, "stage", 5) == 0
3373 && ISDIGIT (value
[len
- 2])
3374 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3377 add_prefix (&include_prefixes
, "include", NULL
,
3378 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3381 char *string
= xmalloc (len
+ 1);
3382 strncpy (string
, value
, len
-7);
3383 strcpy (string
+len
-7, "include");
3384 add_prefix (&include_prefixes
, string
, NULL
,
3385 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3389 add_prefix (&exec_prefixes
, value
, NULL
,
3390 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3391 add_prefix (&startfile_prefixes
, value
, NULL
,
3392 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3393 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3394 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3399 case 'v': /* Print our subcommands and print versions. */
3401 /* If they do anything other than exactly `-v', don't set
3402 verbose_flag; rather, continue on to give the error. */
3410 if (p
[1] == 0 && i
+ 1 == argc
)
3411 fatal ("argument to `-V' is missing");
3413 spec_version
= argv
[++i
];
3415 spec_version
= p
+ 1;
3416 compiler_version
= spec_version
;
3417 warn_std_ptr
= &warn_std
;
3419 /* Validate the version number. Use the same checks
3420 done when inserting it into a spec.
3422 The format of the version string is
3423 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3425 const char *v
= compiler_version
;
3427 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3428 while (! ISDIGIT (*v
))
3431 if (v
> compiler_version
&& v
[-1] != '-')
3432 fatal ("invalid version number format");
3434 /* Set V after the first period. */
3435 while (ISDIGIT (*v
))
3439 fatal ("invalid version number format");
3442 while (ISDIGIT (*v
))
3445 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3446 fatal ("invalid version number format");
3462 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3467 /* Forward scan, just in case -S or -c is specified
3474 if (argv
[j
][0] == '-')
3476 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3482 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3483 j
+= skip
- (argv
[j
][2] != 0);
3484 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3491 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3493 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3495 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3502 #ifdef MODIFY_TARGET_NAME
3503 is_modify_target_name
= 0;
3506 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3507 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3510 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3511 + strlen (spec_machine
));
3514 int made_addition
= 0;
3516 is_modify_target_name
= 1;
3517 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3519 if (modify_target
[j
].add_del
== DELETE
3520 && (! strncmp (q
, modify_target
[j
].str
,
3521 strlen (modify_target
[j
].str
))))
3522 p
+= strlen (modify_target
[j
].str
);
3523 else if (modify_target
[j
].add_del
== ADD
3524 && ! made_addition
&& *p
== '-')
3526 for (r
= modify_target
[j
].str
; *r
!= 0; )
3534 spec_machine
= new_name
;
3537 if (is_modify_target_name
)
3543 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3544 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3545 else if (WORD_SWITCH_TAKES_ARG (p
))
3546 i
+= WORD_SWITCH_TAKES_ARG (p
);
3556 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3557 fatal ("cannot specify -o with -c or -S and multiple compilations");
3559 /* Set up the search paths before we go looking for config files. */
3561 /* These come before the md prefixes so that we will find gcc's subcommands
3562 (such as cpp) rather than those of the host system. */
3563 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3564 as well as trying the machine and the version. */
3566 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3567 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3568 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3569 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3570 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3571 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3574 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3575 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3576 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3577 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3579 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3580 dir_separator_str
, NULL
);
3582 /* If tooldir is relative, base it on exec_prefixes. A relative
3583 tooldir lets us move the installed tree as a unit.
3585 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3586 directories, so that we can search both the user specified directory
3587 and the standard place. */
3589 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3591 if (gcc_exec_prefix
)
3593 char *gcc_exec_tooldir_prefix
3594 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3595 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3597 add_prefix (&exec_prefixes
,
3598 concat (gcc_exec_tooldir_prefix
, "bin",
3599 dir_separator_str
, NULL
),
3600 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3601 add_prefix (&startfile_prefixes
,
3602 concat (gcc_exec_tooldir_prefix
, "lib",
3603 dir_separator_str
, NULL
),
3604 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3607 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3608 dir_separator_str
, spec_version
,
3609 dir_separator_str
, tooldir_prefix
, NULL
);
3612 add_prefix (&exec_prefixes
,
3613 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3614 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3615 add_prefix (&startfile_prefixes
,
3616 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3617 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3619 /* More prefixes are enabled in main, after we read the specs file
3620 and determine whether this is cross-compilation or not. */
3622 /* Then create the space for the vectors and scan again. */
3624 switches
= ((struct switchstr
*)
3625 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3626 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3629 last_language_n_infiles
= -1;
3631 /* This, time, copy the text of each switch and store a pointer
3632 to the copy in the vector of switches.
3633 Store all the infiles in their vector. */
3635 for (i
= 1; i
< argc
; i
++)
3637 /* Just skip the switches that were handled by the preceding loop. */
3638 #ifdef MODIFY_TARGET_NAME
3639 is_modify_target_name
= 0;
3641 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3642 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3643 is_modify_target_name
= 1;
3645 if (is_modify_target_name
)
3649 if (! strncmp (argv
[i
], "-Wa,", 4))
3651 else if (! strncmp (argv
[i
], "-Wp,", 4))
3653 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3655 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3657 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3659 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3661 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3663 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3665 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3667 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3669 /* Create a dummy input file, so that we can pass --target-help on to
3670 the various sub-processes. */
3671 infiles
[n_infiles
].language
= "c";
3672 infiles
[n_infiles
++].name
= "target-dummy";
3674 /* Preserve the --target-help switch so that it can be caught by
3675 the cc1 spec string. */
3676 switches
[n_switches
].part1
= "--target-help";
3677 switches
[n_switches
].args
= 0;
3678 switches
[n_switches
].live_cond
= SWITCH_OK
;
3679 switches
[n_switches
].validated
= 0;
3683 else if (strcmp (argv
[i
], "-fhelp") == 0)
3687 /* Create a dummy input file, so that we can pass --help on to
3688 the various sub-processes. */
3689 infiles
[n_infiles
].language
= "c";
3690 infiles
[n_infiles
++].name
= "help-dummy";
3692 /* Preserve the --help switch so that it can be caught by the
3694 switches
[n_switches
].part1
= "--help";
3695 switches
[n_switches
].args
= 0;
3696 switches
[n_switches
].live_cond
= SWITCH_OK
;
3697 switches
[n_switches
].validated
= 0;
3702 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3704 /* Compensate for the +e options to the C++ front-end;
3705 they're there simply for cfront call-compatibility. We do
3706 some magic in default_compilers to pass them down properly.
3707 Note we deliberately start at the `+' here, to avoid passing
3708 -e0 or -e1 down into the linker. */
3709 switches
[n_switches
].part1
= &argv
[i
][0];
3710 switches
[n_switches
].args
= 0;
3711 switches
[n_switches
].live_cond
= SWITCH_OK
;
3712 switches
[n_switches
].validated
= 0;
3715 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3718 /* Split the argument at commas. */
3720 for (j
= 4; argv
[i
][j
]; j
++)
3721 if (argv
[i
][j
] == ',')
3723 infiles
[n_infiles
].language
= "*";
3724 infiles
[n_infiles
++].name
3725 = save_string (argv
[i
] + prev
, j
- prev
);
3728 /* Record the part after the last comma. */
3729 infiles
[n_infiles
].language
= "*";
3730 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3732 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3734 infiles
[n_infiles
].language
= "*";
3735 infiles
[n_infiles
++].name
= argv
[++i
];
3737 else if (strcmp (argv
[i
], "-l") == 0)
3738 { /* POSIX allows separation of -l and the lib arg;
3739 canonicalize by concatenating -l with its arg */
3740 infiles
[n_infiles
].language
= "*";
3741 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3743 else if (strncmp (argv
[i
], "-l", 2) == 0)
3745 infiles
[n_infiles
].language
= "*";
3746 infiles
[n_infiles
++].name
= argv
[i
];
3748 else if (strcmp (argv
[i
], "-specs") == 0)
3750 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3752 else if (strcmp (argv
[i
], "-time") == 0)
3754 else if ((save_temps_flag
|| report_times
)
3755 && strcmp (argv
[i
], "-pipe") == 0)
3757 /* -save-temps overrides -pipe, so that temp files are produced */
3758 if (save_temps_flag
)
3759 error ("Warning: -pipe ignored because -save-temps specified");
3760 /* -time overrides -pipe because we can't get correct stats when
3761 multiple children are running at once. */
3762 else if (report_times
)
3763 error ("Warning: -pipe ignored because -time specified");
3765 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3767 const char *p
= &argv
[i
][1];
3772 if (p
[1] == 0 && i
+ 1 == argc
)
3773 fatal ("argument to `-x' is missing");
3775 spec_lang
= argv
[++i
];
3778 if (! strcmp (spec_lang
, "none"))
3779 /* Suppress the warning if -xnone comes after the last input
3780 file, because alternate command interfaces like g++ might
3781 find it useful to place -xnone after each input file. */
3784 last_language_n_infiles
= n_infiles
;
3787 switches
[n_switches
].part1
= p
;
3788 /* Deal with option arguments in separate argv elements. */
3789 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3790 || WORD_SWITCH_TAKES_ARG (p
))
3793 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3797 /* Count only the option arguments in separate argv elements. */
3798 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3800 if (i
+ n_args
>= argc
)
3801 fatal ("argument to `-%s' is missing", p
);
3802 switches
[n_switches
].args
3803 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3805 switches
[n_switches
].args
[j
++] = argv
[++i
];
3806 /* Null-terminate the vector. */
3807 switches
[n_switches
].args
[j
] = 0;
3809 else if (strchr (switches_need_spaces
, c
))
3811 /* On some systems, ld cannot handle some options without
3812 a space. So split the option from its argument. */
3813 char *part1
= (char *) xmalloc (2);
3818 switches
[n_switches
].part1
= part1
;
3819 switches
[n_switches
].args
3820 = (const char **) xmalloc (2 * sizeof (const char *));
3821 switches
[n_switches
].args
[0] = tmp
= xmalloc (strlen (p
));
3822 strcpy (tmp
, &p
[1]);
3823 switches
[n_switches
].args
[1] = 0;
3826 switches
[n_switches
].args
= 0;
3828 switches
[n_switches
].live_cond
= SWITCH_OK
;
3829 switches
[n_switches
].validated
= 0;
3830 switches
[n_switches
].ordering
= 0;
3831 /* These are always valid, since gcc.c itself understands it. */
3832 if (!strcmp (p
, "save-temps")
3833 || !strcmp (p
, "static-libgcc")
3834 || !strcmp (p
, "shared-libgcc"))
3835 switches
[n_switches
].validated
= 1;
3838 char ch
= switches
[n_switches
].part1
[0];
3839 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3840 switches
[n_switches
].validated
= 1;
3846 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3847 argv
[i
] = convert_filename (argv
[i
], 0);
3850 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
3852 perror_with_name (argv
[i
]);
3857 infiles
[n_infiles
].language
= spec_lang
;
3858 infiles
[n_infiles
++].name
= argv
[i
];
3863 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3864 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3866 switches
[n_switches
].part1
= 0;
3867 infiles
[n_infiles
].name
= 0;
3870 /* Process a spec string, accumulating and running commands. */
3872 /* These variables describe the input file name.
3873 input_file_number is the index on outfiles of this file,
3874 so that the output file name can be stored for later use by %o.
3875 input_basename is the start of the part of the input file
3876 sans all directory names, and basename_length is the number
3877 of characters starting there excluding the suffix .c or whatever. */
3879 const char *input_filename
;
3880 static int input_file_number
;
3881 size_t input_filename_length
;
3882 static int basename_length
;
3883 static int suffixed_basename_length
;
3884 static const char *input_basename
;
3885 static const char *input_suffix
;
3887 /* The compiler used to process the current input file. */
3888 static struct compiler
*input_file_compiler
;
3890 /* These are variables used within do_spec and do_spec_1. */
3892 /* Nonzero if an arg has been started and not yet terminated
3893 (with space, tab or newline). */
3894 static int arg_going
;
3896 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3897 is a temporary file name. */
3898 static int delete_this_arg
;
3900 /* Nonzero means %w has been seen; the next arg to be terminated
3901 is the output file name of this compilation. */
3902 static int this_is_output_file
;
3904 /* Nonzero means %s has been seen; the next arg to be terminated
3905 is the name of a library file and we should try the standard
3906 search dirs for it. */
3907 static int this_is_library_file
;
3909 /* Nonzero means that the input of this command is coming from a pipe. */
3910 static int input_from_pipe
;
3912 /* Nonnull means substitute this for any suffix when outputting a switches
3914 static const char *suffix_subst
;
3916 /* Process the spec SPEC and run the commands specified therein.
3917 Returns 0 if the spec is successfully processed; -1 if failed. */
3927 delete_this_arg
= 0;
3928 this_is_output_file
= 0;
3929 this_is_library_file
= 0;
3930 input_from_pipe
= 0;
3931 suffix_subst
= NULL
;
3933 value
= do_spec_1 (spec
, 0, NULL
);
3935 /* Force out any unfinished command.
3936 If -pipe, this forces out the last command if it ended in `|'. */
3939 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3942 if (argbuf_index
> 0)
3949 /* Process the sub-spec SPEC as a portion of a larger spec.
3950 This is like processing a whole spec except that we do
3951 not initialize at the beginning and we do not supply a
3952 newline by default at the end.
3953 INSWITCH nonzero means don't process %-sequences in SPEC;
3954 in this case, % is treated as an ordinary character.
3955 This is used while substituting switches.
3956 INSWITCH nonzero also causes SPC not to terminate an argument.
3958 Value is zero unless a line was finished
3959 and the command on that line reported an error. */
3962 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3965 const char *soft_matched_part
;
3967 register const char *p
= spec
;
3974 /* If substituting a switch, treat all chars like letters.
3975 Otherwise, NL, SPC, TAB and % are special. */
3976 switch (inswitch
? 'a' : c
)
3979 /* End of line: finish any pending argument,
3980 then run the pending command if one has been started. */
3983 obstack_1grow (&obstack
, 0);
3984 string
= obstack_finish (&obstack
);
3985 if (this_is_library_file
)
3986 string
= find_file (string
);
3987 store_arg (string
, delete_this_arg
, this_is_output_file
);
3988 if (this_is_output_file
)
3989 outfiles
[input_file_number
] = string
;
3993 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3995 for (i
= 0; i
< n_switches
; i
++)
3996 if (!strcmp (switches
[i
].part1
, "pipe"))
3999 /* A `|' before the newline means use a pipe here,
4000 but only if -pipe was specified.
4001 Otherwise, execute now and don't pass the `|' as an arg. */
4004 input_from_pipe
= 1;
4005 switches
[i
].validated
= 1;
4012 if (argbuf_index
> 0)
4018 /* Reinitialize for a new command, and for a new argument. */
4021 delete_this_arg
= 0;
4022 this_is_output_file
= 0;
4023 this_is_library_file
= 0;
4024 input_from_pipe
= 0;
4028 /* End any pending argument. */
4031 obstack_1grow (&obstack
, 0);
4032 string
= obstack_finish (&obstack
);
4033 if (this_is_library_file
)
4034 string
= find_file (string
);
4035 store_arg (string
, delete_this_arg
, this_is_output_file
);
4036 if (this_is_output_file
)
4037 outfiles
[input_file_number
] = string
;
4041 obstack_1grow (&obstack
, c
);
4047 /* Space or tab ends an argument if one is pending. */
4050 obstack_1grow (&obstack
, 0);
4051 string
= obstack_finish (&obstack
);
4052 if (this_is_library_file
)
4053 string
= find_file (string
);
4054 store_arg (string
, delete_this_arg
, this_is_output_file
);
4055 if (this_is_output_file
)
4056 outfiles
[input_file_number
] = string
;
4058 /* Reinitialize for a new argument. */
4060 delete_this_arg
= 0;
4061 this_is_output_file
= 0;
4062 this_is_library_file
= 0;
4069 fatal ("Invalid specification! Bug in cc.");
4072 obstack_grow (&obstack
, input_basename
, basename_length
);
4077 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4082 delete_this_arg
= 2;
4085 /* Dump out the directories specified with LIBRARY_PATH,
4086 followed by the absolute directories
4087 that we search for startfiles. */
4090 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4091 size_t bufsize
= 100;
4092 char *buffer
= (char *) xmalloc (bufsize
);
4095 for (; pl
; pl
= pl
->next
)
4097 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4098 /* Used on systems which record the specified -L dirs
4099 and use them to search for dynamic linking. */
4100 /* Relative directories always come from -B,
4101 and it is better not to use them for searching
4102 at run time. In particular, stage1 loses. */
4103 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4106 /* Try subdirectory if there is one. */
4107 if (multilib_dir
!= NULL
)
4111 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4113 bufsize
= (strlen (pl
->prefix
)
4114 + strlen (machine_suffix
)) * 2 + 1;
4115 buffer
= (char *) xrealloc (buffer
, bufsize
);
4116 strcpy (buffer
, pl
->prefix
);
4117 strcat (buffer
, machine_suffix
);
4118 if (is_directory (buffer
, multilib_dir
, 1))
4120 do_spec_1 ("-L", 0, NULL
);
4121 #ifdef SPACE_AFTER_L_OPTION
4122 do_spec_1 (" ", 0, NULL
);
4124 do_spec_1 (buffer
, 1, NULL
);
4125 do_spec_1 (multilib_dir
, 1, NULL
);
4126 /* Make this a separate argument. */
4127 do_spec_1 (" ", 0, NULL
);
4130 if (!pl
->require_machine_suffix
)
4132 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4134 do_spec_1 ("-L", 0, NULL
);
4135 #ifdef SPACE_AFTER_L_OPTION
4136 do_spec_1 (" ", 0, NULL
);
4138 do_spec_1 (pl
->prefix
, 1, NULL
);
4139 do_spec_1 (multilib_dir
, 1, NULL
);
4140 /* Make this a separate argument. */
4141 do_spec_1 (" ", 0, NULL
);
4147 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4149 do_spec_1 ("-L", 0, NULL
);
4150 #ifdef SPACE_AFTER_L_OPTION
4151 do_spec_1 (" ", 0, NULL
);
4153 do_spec_1 (pl
->prefix
, 1, NULL
);
4154 /* Remove slash from machine_suffix. */
4155 if (strlen (machine_suffix
) >= bufsize
)
4156 bufsize
= strlen (machine_suffix
) * 2 + 1;
4157 buffer
= (char *) xrealloc (buffer
, bufsize
);
4158 strcpy (buffer
, machine_suffix
);
4159 idx
= strlen (buffer
);
4160 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4161 buffer
[idx
- 1] = 0;
4162 do_spec_1 (buffer
, 1, NULL
);
4163 /* Make this a separate argument. */
4164 do_spec_1 (" ", 0, NULL
);
4167 if (!pl
->require_machine_suffix
)
4169 if (is_directory (pl
->prefix
, "", 1))
4171 do_spec_1 ("-L", 0, NULL
);
4172 #ifdef SPACE_AFTER_L_OPTION
4173 do_spec_1 (" ", 0, NULL
);
4175 /* Remove slash from pl->prefix. */
4176 if (strlen (pl
->prefix
) >= bufsize
)
4177 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4178 buffer
= (char *) xrealloc (buffer
, bufsize
);
4179 strcpy (buffer
, pl
->prefix
);
4180 idx
= strlen (buffer
);
4181 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4182 buffer
[idx
- 1] = 0;
4183 do_spec_1 (buffer
, 1, NULL
);
4184 /* Make this a separate argument. */
4185 do_spec_1 (" ", 0, NULL
);
4194 /* %efoo means report an error with `foo' as error message
4195 and don't execute any more commands for this file. */
4199 while (*p
!= 0 && *p
!= '\n')
4201 buf
= (char *) alloca (p
- q
+ 1);
4202 strncpy (buf
, q
, p
- q
);
4209 /* %nfoo means report an notice with `foo' on stderr. */
4213 while (*p
!= 0 && *p
!= '\n')
4215 buf
= (char *) alloca (p
- q
+ 1);
4216 strncpy (buf
, q
, p
- q
);
4218 notice ("%s\n", buf
);
4228 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4229 and it is not a directory, and it is writable, use it.
4230 Otherwise, fall through and treat this like any other
4233 if ((!save_temps_flag
)
4234 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4235 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4237 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4238 strlen (HOST_BIT_BUCKET
));
4239 delete_this_arg
= 0;
4247 if (save_temps_flag
)
4249 obstack_grow (&obstack
, input_basename
, basename_length
);
4250 delete_this_arg
= 0;
4254 struct temp_name
*t
;
4256 const char *suffix
= p
;
4257 char *saved_suffix
= NULL
;
4259 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4261 suffix_length
= p
- suffix
;
4262 if (p
[0] == '%' && p
[1] == 'O')
4265 /* We don't support extra suffix characters after %O. */
4266 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4268 if (suffix_length
== 0)
4269 suffix
= TARGET_OBJECT_SUFFIX
;
4273 = (char *) xmalloc (suffix_length
4274 + strlen (TARGET_OBJECT_SUFFIX
));
4275 strncpy (saved_suffix
, suffix
, suffix_length
);
4276 strcpy (saved_suffix
+ suffix_length
,
4277 TARGET_OBJECT_SUFFIX
);
4279 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4282 /* See if we already have an association of %g/%u/%U and
4284 for (t
= temp_names
; t
; t
= t
->next
)
4285 if (t
->length
== suffix_length
4286 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4287 && t
->unique
== (c
!= 'g'))
4290 /* Make a new association if needed. %u and %j require one. */
4291 if (t
== 0 || c
== 'u' || c
== 'j')
4295 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4296 t
->next
= temp_names
;
4299 t
->length
= suffix_length
;
4300 t
->suffix
= save_string (suffix
, suffix_length
);
4301 t
->unique
= (c
!= 'g');
4302 temp_filename
= make_temp_file (t
->suffix
);
4303 temp_filename_length
= strlen (temp_filename
);
4304 t
->filename
= temp_filename
;
4305 t
->filename_length
= temp_filename_length
;
4309 free (saved_suffix
);
4311 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4312 delete_this_arg
= 1;
4318 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4324 struct prefix_list
*pl
= include_prefixes
.plist
;
4326 if (gcc_exec_prefix
)
4328 do_spec_1 ("-iprefix", 1, NULL
);
4329 /* Make this a separate argument. */
4330 do_spec_1 (" ", 0, NULL
);
4331 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4332 do_spec_1 (" ", 0, NULL
);
4335 for (; pl
; pl
= pl
->next
)
4337 do_spec_1 ("-isystem", 1, NULL
);
4338 /* Make this a separate argument. */
4339 do_spec_1 (" ", 0, NULL
);
4340 do_spec_1 (pl
->prefix
, 1, NULL
);
4341 do_spec_1 (" ", 0, NULL
);
4348 int max
= n_infiles
;
4349 max
+= lang_specific_extra_outfiles
;
4351 for (i
= 0; i
< max
; i
++)
4353 store_arg (outfiles
[i
], 0, 0);
4358 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4363 this_is_library_file
= 1;
4367 this_is_output_file
= 1;
4372 int cur_index
= argbuf_index
;
4373 /* Handle the {...} following the %W. */
4376 p
= handle_braces (p
+ 1);
4379 /* If any args were output, mark the last one for deletion
4381 if (argbuf_index
!= cur_index
)
4382 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4386 /* %x{OPTION} records OPTION for %X to output. */
4392 /* Skip past the option value and make a copy. */
4397 string
= save_string (p1
+ 1, p
- p1
- 2);
4399 /* See if we already recorded this option. */
4400 for (i
= 0; i
< n_linker_options
; i
++)
4401 if (! strcmp (string
, linker_options
[i
]))
4407 /* This option is new; add it. */
4408 add_linker_option (string
, strlen (string
));
4412 /* Dump out the options accumulated previously using %x. */
4414 for (i
= 0; i
< n_linker_options
; i
++)
4416 do_spec_1 (linker_options
[i
], 1, NULL
);
4417 /* Make each accumulated option a separate argument. */
4418 do_spec_1 (" ", 0, NULL
);
4422 /* Dump out the options accumulated previously using -Wa,. */
4424 for (i
= 0; i
< n_assembler_options
; i
++)
4426 do_spec_1 (assembler_options
[i
], 1, NULL
);
4427 /* Make each accumulated option a separate argument. */
4428 do_spec_1 (" ", 0, NULL
);
4432 /* Dump out the options accumulated previously using -Wp,. */
4434 for (i
= 0; i
< n_preprocessor_options
; i
++)
4436 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4437 /* Make each accumulated option a separate argument. */
4438 do_spec_1 (" ", 0, NULL
);
4442 /* Here are digits and numbers that just process
4443 a certain constant string as a spec. */
4446 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4452 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4458 value
= do_spec_1 (asm_spec
, 0, NULL
);
4464 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4470 value
= do_spec_1 (signed_char_spec
, 0, NULL
);
4478 = (input_file_compiler
->cpp_spec
4479 ? input_file_compiler
->cpp_spec
4481 value
= do_spec_1 (spec
, 0, NULL
);
4488 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4494 value
= do_spec_1 (link_spec
, 0, NULL
);
4500 value
= do_spec_1 (lib_spec
, 0, NULL
);
4506 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4512 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4518 len
= strlen (multilib_dir
);
4519 obstack_blank (&obstack
, len
+ 1);
4520 p
= obstack_next_free (&obstack
) - (len
+ 1);
4523 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4524 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4530 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4534 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4538 if (! strncmp (y
, "-D", 2))
4539 /* Copy the whole option. */
4540 while (*y
&& *y
!= ' ' && *y
!= '\t')
4542 else if (*y
== ' ' || *y
== '\t')
4543 /* Copy whitespace to the result. */
4545 /* Don't copy other options. */
4552 value
= do_spec_1 (buf
, 0, NULL
);
4560 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4564 /* Copy all of CPP_PREDEFINES into BUF,
4565 but force them all into the reserved name space if they
4566 aren't already there. The reserved name space is all
4567 identifiers beginning with two underscores or with one
4568 underscore and a capital letter. We do the forcing by
4569 adding up to two underscores to the beginning and end
4570 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4575 if (! strncmp (y
, "-D", 2))
4584 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4586 /* Stick __ at front of macro name. */
4590 /* Arrange to stick __ at the end as well. */
4594 /* Copy the macro name. */
4595 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4608 /* Copy the value given, if any. */
4609 while (*y
&& *y
!= ' ' && *y
!= '\t')
4612 else if (*y
== ' ' || *y
== '\t')
4613 /* Copy whitespace to the result. */
4615 /* Don't copy -A options */
4621 /* Copy all of CPP_PREDEFINES into BUF,
4622 but put __ after every -D. */
4626 if (! strncmp (y
, "-D", 2))
4632 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4634 /* Stick -D__ at front of macro name. */
4641 /* Copy the macro name. */
4642 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4645 /* Copy the value given, if any. */
4646 while (*y
&& *y
!= ' ' && *y
!= '\t')
4651 /* Do not copy this macro - we have just done it before */
4652 while (*y
&& *y
!= ' ' && *y
!= '\t')
4656 else if (*y
== ' ' || *y
== '\t')
4657 /* Copy whitespace to the result. */
4659 /* Don't copy -A options. */
4665 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4669 if (! strncmp (y
, "-A", 2))
4670 /* Copy the whole option. */
4671 while (*y
&& *y
!= ' ' && *y
!= '\t')
4673 else if (*y
== ' ' || *y
== '\t')
4674 /* Copy whitespace to the result. */
4676 /* Don't copy other options. */
4683 value
= do_spec_1 (buf
, 0, NULL
);
4690 value
= do_spec_1 (startfile_spec
, 0, NULL
);
4695 /* Here we define characters other than letters and digits. */
4698 p
= handle_braces (p
);
4704 obstack_1grow (&obstack
, '%');
4711 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
4713 suffix_subst
= save_string (p
- 1, len
+ 1);
4719 if (soft_matched_part
)
4721 do_spec_1 (soft_matched_part
, 1, NULL
);
4722 do_spec_1 (" ", 0, NULL
);
4725 /* Catch the case where a spec string contains something like
4726 '%{foo:%*}'. ie there is no * in the pattern on the left
4727 hand side of the :. */
4728 error ("Spec failure: '%%*' has not been initialised by pattern match");
4731 /* Process a string found as the value of a spec given by name.
4732 This feature allows individual machine descriptions
4733 to add and use their own specs.
4734 %[...] modifies -D options the way %P does;
4735 %(...) uses the spec unmodified. */
4737 error ("Warning: use of obsolete %%[ operator in specs");
4740 const char *name
= p
;
4741 struct spec_list
*sl
;
4744 /* The string after the S/P is the name of a spec that is to be
4746 while (*p
&& *p
!= ')' && *p
!= ']')
4749 /* See if it's in the list. */
4750 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4751 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4753 name
= *(sl
->ptr_spec
);
4755 notice ("Processing spec %c%s%c, which is '%s'\n",
4756 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4765 value
= do_spec_1 (name
, 0, NULL
);
4771 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4773 const char *y
= name
;
4776 /* Copy all of NAME into BUF, but put __ after
4777 every -D and at the end of each arg. */
4780 if (! strncmp (y
, "-D", 2))
4791 && (*y
== ' ' || *y
== '\t' || *y
== '='
4792 || *y
== '}' || *y
== 0))
4805 value
= do_spec_1 (buf
, 0, NULL
);
4811 /* Discard the closing paren or bracket. */
4819 int c1
= *p
++; /* Select first or second version number. */
4820 const char *v
= compiler_version
;
4822 static const char zeroc
= '0';
4824 /* The format of the version string is
4825 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4827 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4828 while (! ISDIGIT (*v
))
4830 if (v
> compiler_version
&& v
[-1] != '-')
4833 /* If desired, advance to second version number. */
4836 /* Set V after the first period. */
4837 while (ISDIGIT (*v
))
4844 /* If desired, advance to third version number.
4845 But don't complain if it's not present */
4848 /* Set V after the second period. */
4849 while (ISDIGIT (*v
))
4851 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4857 /* Set Q at the next period or at the end. */
4859 while (ISDIGIT (*q
))
4861 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4865 /* Put that part into the command. */
4866 obstack_grow (&obstack
, v
, q
- v
);
4868 /* Default to "0" */
4869 obstack_grow (&obstack
, &zeroc
, 1);
4875 if (input_from_pipe
)
4876 do_spec_1 ("-", 0, NULL
);
4880 error ("Spec failure: Unrecognised spec option '%c'", c
);
4886 /* Backslash: treat next character as ordinary. */
4891 /* Ordinary character: put it into the current argument. */
4892 obstack_1grow (&obstack
, c
);
4896 /* End of string. */
4900 /* Return 0 if we call do_spec_1 and that returns -1. */
4904 register const char *p
;
4906 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4908 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4911 int include_blanks
= 1;
4912 int elide_switch
= 0;
4917 /* A '^' after the open-brace means to not give blanks before args. */
4924 /* A `|' after the open-brace means,
4925 if the test fails, output a single minus sign rather than nothing.
4926 This is used in %{|!pipe:...}. */
4933 /* A `<' after the open-brace means that the switch should be
4934 removed from the command-line. */
4940 negate
= suffix
= 0;
4943 /* A `!' after the open-brace negates the condition:
4944 succeed if the specified switch is not present. */
4948 /* A `.' after the open-brace means test against the current suffix. */
4957 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
4959 /* It doesn't make sense to mix elision with other flags. We
4960 could fatal() here, but the standard seems to be to abort. */
4966 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
4969 if (*p
== '|' && (pipe_p
|| ordered
))
4974 if (*p
!= '}' && *p
!= '&')
4976 register int count
= 1;
4977 register const char *q
= p
;
4996 body
= p
, endbody
= p
+ 1;
5001 int found
= (input_suffix
!= 0
5002 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5003 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5009 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5012 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5014 /* Substitute all matching switches as separate args. */
5017 for (i
= 0; i
< n_switches
; i
++)
5018 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5019 && check_live_switch (i
, p
- 1 - filter
))
5023 switches
[i
].live_cond
= SWITCH_IGNORE
;
5024 switches
[i
].validated
= 1;
5027 ordered
= 1, switches
[i
].ordering
= 1;
5032 /* Test for presence of the specified switch. */
5036 /* If name specified ends in *, as in {x*:...},
5037 check for %* and handle that case. */
5038 if (p
[-1] == '*' && !negate
)
5041 const char *r
= body
;
5043 /* First see whether we have %*. */
5047 if (*r
== '%' && r
[1] == '*')
5051 /* If we do, handle that case. */
5054 /* Substitute all matching switches as separate args.
5055 But do this by substituting for %*
5056 in the text that follows the colon. */
5058 unsigned hard_match_len
= p
- filter
- 1;
5059 char *string
= save_string (body
, endbody
- body
- 1);
5061 for (i
= 0; i
< n_switches
; i
++)
5062 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5063 && check_live_switch (i
, -1))
5065 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5066 /* Pass any arguments this switch has. */
5067 give_switch (i
, 1, 1);
5068 suffix_subst
= NULL
;
5071 /* We didn't match. Try again. */
5078 /* If name specified ends in *, as in {x*:...},
5079 check for presence of any switch name starting with x. */
5082 for (i
= 0; i
< n_switches
; i
++)
5084 unsigned hard_match_len
= p
- filter
- 1;
5086 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5087 && check_live_switch (i
, hard_match_len
))
5094 /* Otherwise, check for presence of exact name specified. */
5097 for (i
= 0; i
< n_switches
; i
++)
5099 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5100 && switches
[i
].part1
[p
- filter
] == 0
5101 && check_live_switch (i
, -1))
5109 /* If it is as desired (present for %{s...}, absent for %{!s...})
5110 then substitute either the switch or the specified
5111 conditional text. */
5112 if (present
!= negate
)
5116 switches
[i
].live_cond
= SWITCH_IGNORE
;
5117 switches
[i
].validated
= 1;
5119 else if (ordered
|| *p
== '&')
5120 ordered
= 1, switches
[i
].ordering
= 1;
5122 give_switch (i
, 0, include_blanks
);
5124 /* Even if many alternatives are matched, only output once. */
5129 /* Here if a %{|...} conditional fails: output a minus sign,
5130 which means "standard output" or "standard input". */
5131 do_spec_1 ("-", 0, NULL
);
5136 /* We didn't match; try again. */
5143 goto next_ampersand
;
5149 /* Doing this set of switches later preserves their command-line
5150 ordering. This is needed for e.g. -U, -D and -A. */
5151 for (i
= 0; i
< n_switches
; i
++)
5152 if (switches
[i
].ordering
== 1)
5154 switches
[i
].ordering
= 0;
5155 give_switch (i
, 0, include_blanks
);
5158 /* Process the spec just once, regardless of match count. */
5161 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5169 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5170 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5171 spec, or -1 if either exact match or %* is used.
5173 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5174 whose value does not begin with "no-" is obsoleted by the same value
5175 with the "no-", similarly for a switch with the "no-" prefix. */
5178 check_live_switch (switchnum
, prefix_length
)
5182 const char *name
= switches
[switchnum
].part1
;
5185 /* In the common case of {<at-most-one-letter>*}, a negating
5186 switch would always match, so ignore that case. We will just
5187 send the conflicting switches to the compiler phase. */
5188 if (prefix_length
>= 0 && prefix_length
<= 1)
5191 /* If we already processed this switch and determined if it was
5192 live or not, return our past determination. */
5193 if (switches
[switchnum
].live_cond
!= 0)
5194 return switches
[switchnum
].live_cond
> 0;
5196 /* Now search for duplicate in a manner that depends on the name. */
5200 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5201 if (switches
[i
].part1
[0] == 'O')
5203 switches
[switchnum
].validated
= 1;
5204 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5209 case 'W': case 'f': case 'm':
5210 if (! strncmp (name
+ 1, "no-", 3))
5212 /* We have Xno-YYY, search for XYYY. */
5213 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5214 if (switches
[i
].part1
[0] == name
[0]
5215 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5217 switches
[switchnum
].validated
= 1;
5218 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5224 /* We have XYYY, search for Xno-YYY. */
5225 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5226 if (switches
[i
].part1
[0] == name
[0]
5227 && switches
[i
].part1
[1] == 'n'
5228 && switches
[i
].part1
[2] == 'o'
5229 && switches
[i
].part1
[3] == '-'
5230 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5232 switches
[switchnum
].validated
= 1;
5233 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5240 /* Otherwise the switch is live. */
5241 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5245 /* Pass a switch to the current accumulating command
5246 in the same form that we received it.
5247 SWITCHNUM identifies the switch; it is an index into
5248 the vector of switches gcc received, which is `switches'.
5249 This cannot fail since it never finishes a command line.
5251 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5253 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5257 give_switch (switchnum
, omit_first_word
, include_blanks
)
5259 int omit_first_word
;
5262 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5265 if (!omit_first_word
)
5267 do_spec_1 ("-", 0, NULL
);
5268 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5271 if (switches
[switchnum
].args
!= 0)
5274 for (p
= switches
[switchnum
].args
; *p
; p
++)
5276 const char *arg
= *p
;
5279 do_spec_1 (" ", 0, NULL
);
5282 unsigned length
= strlen (arg
);
5284 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5285 if (arg
[length
] == '.')
5287 ((char *)arg
)[length
] = 0;
5290 do_spec_1 (arg
, 1, NULL
);
5293 ((char *)arg
)[length
] = '.';
5294 do_spec_1 (suffix_subst
, 1, NULL
);
5298 do_spec_1 (arg
, 1, NULL
);
5302 do_spec_1 (" ", 0, NULL
);
5303 switches
[switchnum
].validated
= 1;
5306 /* Search for a file named NAME trying various prefixes including the
5307 user's -B prefix and some standard ones.
5308 Return the absolute file name found. If nothing is found, return NAME. */
5316 /* Try multilib_dir if it is defined. */
5317 if (multilib_dir
!= NULL
)
5321 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
5322 strcpy (try, multilib_dir
);
5323 strcat (try, dir_separator_str
);
5326 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5328 /* If we don't find it in the multi library dir, then fall
5329 through and look for it in the normal places. */
5330 if (newname
!= NULL
)
5334 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5335 return newname
? newname
: name
;
5338 /* Determine whether a directory exists. If LINKER, return 0 for
5339 certain fixed names not needed by the linker. If not LINKER, it is
5340 only important to return 0 if the host machine has a small ARG_MAX
5344 is_directory (path1
, path2
, linker
)
5349 int len1
= strlen (path1
);
5350 int len2
= strlen (path2
);
5351 char *path
= (char *) alloca (3 + len1
+ len2
);
5355 #ifndef SMALL_ARG_MAX
5360 /* Construct the path from the two parts. Ensure the string ends with "/.".
5361 The resulting path will be a directory even if the given path is a
5363 memcpy (path
, path1
, len1
);
5364 memcpy (path
+ len1
, path2
, len2
);
5365 cp
= path
+ len1
+ len2
;
5366 if (!IS_DIR_SEPARATOR (cp
[-1]))
5367 *cp
++ = DIR_SEPARATOR
;
5371 /* Exclude directories that the linker is known to search. */
5374 && strcmp (path
, concat (dir_separator_str
, "lib",
5375 dir_separator_str
, ".", NULL
)) == 0)
5377 && strcmp (path
, concat (dir_separator_str
, "usr",
5378 dir_separator_str
, "lib",
5379 dir_separator_str
, ".", NULL
)) == 0)))
5382 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5385 /* Set up the various global variables to indicate that we're processing
5386 the input file named FILENAME. */
5389 set_input (filename
)
5390 const char *filename
;
5392 register const char *p
;
5394 input_filename
= filename
;
5395 input_filename_length
= strlen (input_filename
);
5397 input_basename
= input_filename
;
5398 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5399 /* Skip drive name so 'x:foo' is handled properly. */
5400 if (input_basename
[1] == ':')
5401 input_basename
+= 2;
5403 for (p
= input_basename
; *p
; p
++)
5404 if (IS_DIR_SEPARATOR (*p
))
5405 input_basename
= p
+ 1;
5407 /* Find a suffix starting with the last period,
5408 and set basename_length to exclude that suffix. */
5409 basename_length
= strlen (input_basename
);
5410 suffixed_basename_length
= basename_length
;
5411 p
= input_basename
+ basename_length
;
5412 while (p
!= input_basename
&& *p
!= '.')
5414 if (*p
== '.' && p
!= input_basename
)
5416 basename_length
= p
- input_basename
;
5417 input_suffix
= p
+ 1;
5423 /* On fatal signals, delete all the temporary files. */
5426 fatal_error (signum
)
5429 signal (signum
, SIG_DFL
);
5430 delete_failure_queue ();
5431 delete_temp_files ();
5432 /* Get the same signal again, this time not handled,
5433 so its normal effect occurs. */
5434 kill (getpid (), signum
);
5437 extern int main
PARAMS ((int, const char *const *));
5442 const char *const *argv
;
5446 int linker_was_run
= 0;
5447 char *explicit_link_files
;
5450 struct user_specs
*uptr
;
5452 p
= argv
[0] + strlen (argv
[0]);
5453 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5457 xmalloc_set_program_name (programname
);
5459 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5460 /* Perform host dependant initialization when needed. */
5461 GCC_DRIVER_HOST_INITIALIZATION
;
5464 /* LC_CTYPE determines the character set used by the terminal so it has be set
5465 to output messages correctly. */
5467 #ifdef HAVE_LC_MESSAGES
5468 setlocale (LC_CTYPE
, "");
5469 setlocale (LC_MESSAGES
, "");
5471 setlocale (LC_ALL
, "");
5474 (void) bindtextdomain (PACKAGE
, localedir
);
5475 (void) textdomain (PACKAGE
);
5477 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5478 signal (SIGINT
, fatal_error
);
5480 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5481 signal (SIGHUP
, fatal_error
);
5483 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5484 signal (SIGTERM
, fatal_error
);
5486 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5487 signal (SIGPIPE
, fatal_error
);
5490 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5491 receive the signal. A different setting is inheritable */
5492 signal (SIGCHLD
, SIG_DFL
);
5496 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5498 obstack_init (&obstack
);
5500 /* Build multilib_select, et. al from the separate lines that make up each
5501 multilib selection. */
5503 const char *const *q
= multilib_raw
;
5506 obstack_init (&multilib_obstack
);
5507 while ((p
= *q
++) != (char *) 0)
5508 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5510 obstack_1grow (&multilib_obstack
, 0);
5511 multilib_select
= obstack_finish (&multilib_obstack
);
5513 q
= multilib_matches_raw
;
5514 while ((p
= *q
++) != (char *) 0)
5515 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5517 obstack_1grow (&multilib_obstack
, 0);
5518 multilib_matches
= obstack_finish (&multilib_obstack
);
5520 q
= multilib_exclusions_raw
;
5521 while ((p
= *q
++) != (char *) 0)
5522 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5524 obstack_1grow (&multilib_obstack
, 0);
5525 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5528 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5531 obstack_1grow (&multilib_obstack
, ' ');
5532 obstack_grow (&multilib_obstack
,
5533 multilib_defaults_raw
[i
],
5534 strlen (multilib_defaults_raw
[i
]));
5538 obstack_1grow (&multilib_obstack
, 0);
5539 multilib_defaults
= obstack_finish (&multilib_obstack
);
5542 /* Set up to remember the pathname of gcc and any options
5543 needed for collect. We use argv[0] instead of programname because
5544 we need the complete pathname. */
5545 obstack_init (&collect_obstack
);
5546 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5547 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5548 putenv (obstack_finish (&collect_obstack
));
5550 #ifdef INIT_ENVIRONMENT
5551 /* Set up any other necessary machine specific environment variables. */
5552 putenv (INIT_ENVIRONMENT
);
5555 /* Make a table of what switches there are (switches, n_switches).
5556 Make a table of specified input files (infiles, n_infiles).
5557 Decode switches that are handled locally. */
5559 process_command (argc
, argv
);
5564 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5566 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5567 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5570 for (i
= 0; (int) i
< n_switches
; i
++)
5572 const char *const *args
;
5575 obstack_grow (&collect_obstack
, " ", 1);
5578 obstack_grow (&collect_obstack
, "'-", 2);
5579 q
= switches
[i
].part1
;
5580 while ((p
= strchr (q
, '\'')))
5582 obstack_grow (&collect_obstack
, q
, p
- q
);
5583 obstack_grow (&collect_obstack
, "'\\''", 4);
5586 obstack_grow (&collect_obstack
, q
, strlen (q
));
5587 obstack_grow (&collect_obstack
, "'", 1);
5589 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5591 obstack_grow (&collect_obstack
, " '", 2);
5593 while ((p
= strchr (q
, '\'')))
5595 obstack_grow (&collect_obstack
, q
, p
- q
);
5596 obstack_grow (&collect_obstack
, "'\\''", 4);
5599 obstack_grow (&collect_obstack
, q
, strlen (q
));
5600 obstack_grow (&collect_obstack
, "'", 1);
5603 obstack_grow (&collect_obstack
, "\0", 1);
5604 putenv (obstack_finish (&collect_obstack
));
5607 /* Initialize the vector of specs to just the default.
5608 This means one element containing 0s, as a terminator. */
5610 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5611 memcpy ((char *) compilers
, (char *) default_compilers
,
5612 sizeof default_compilers
);
5613 n_compilers
= n_default_compilers
;
5615 /* Read specs from a file if there is one. */
5617 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5618 spec_version
, dir_separator_str
, NULL
);
5619 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5621 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5622 /* Read the specs file unless it is a default one. */
5623 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5624 read_specs (specs_file
, TRUE
);
5628 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5629 for any override of as, ld and libraries. */
5630 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5631 + strlen (just_machine_suffix
)
5632 + sizeof ("specs"));
5634 strcpy (specs_file
, standard_exec_prefix
);
5635 strcat (specs_file
, just_machine_suffix
);
5636 strcat (specs_file
, "specs");
5637 if (access (specs_file
, R_OK
) == 0)
5638 read_specs (specs_file
, TRUE
);
5640 /* If not cross-compiling, look for startfiles in the standard places. */
5641 if (*cross_compile
== '0')
5643 if (*md_exec_prefix
)
5645 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5646 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5647 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5648 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5651 if (*md_startfile_prefix
)
5652 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5653 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5655 if (*md_startfile_prefix_1
)
5656 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5657 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5659 /* If standard_startfile_prefix is relative, base it on
5660 standard_exec_prefix. This lets us move the installed tree
5661 as a unit. If GCC_EXEC_PREFIX is defined, base
5662 standard_startfile_prefix on that as well. */
5663 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5664 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5665 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5668 if (gcc_exec_prefix
)
5669 add_prefix (&startfile_prefixes
,
5670 concat (gcc_exec_prefix
, machine_suffix
,
5671 standard_startfile_prefix
, NULL
),
5672 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5673 add_prefix (&startfile_prefixes
,
5674 concat (standard_exec_prefix
,
5676 standard_startfile_prefix
, NULL
),
5677 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5680 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5681 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5682 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5683 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5684 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5685 add_prefix (&startfile_prefixes
, "./", NULL
,
5686 PREFIX_PRIORITY_LAST
, 1, NULL_PTR
);
5691 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5693 add_prefix (&startfile_prefixes
,
5694 concat (gcc_exec_prefix
, machine_suffix
,
5695 standard_startfile_prefix
, NULL
),
5696 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5699 /* Process any user specified specs in the order given on the command
5701 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5703 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5704 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5707 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5708 if (gcc_exec_prefix
)
5710 char *temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5711 + strlen (spec_version
)
5712 + strlen (spec_machine
) + 3);
5713 strcpy (temp
, gcc_exec_prefix
);
5714 strcat (temp
, spec_machine
);
5715 strcat (temp
, dir_separator_str
);
5716 strcat (temp
, spec_version
);
5717 strcat (temp
, dir_separator_str
);
5718 gcc_exec_prefix
= temp
;
5721 /* Now we have the specs.
5722 Set the `valid' bits for switches that match anything in any spec. */
5724 validate_all_switches ();
5726 /* Now that we have the switches and the specs, set
5727 the subdirectory based on the options. */
5728 set_multilib_dir ();
5730 /* Warn about any switches that no pass was interested in. */
5732 for (i
= 0; (int) i
< n_switches
; i
++)
5733 if (! switches
[i
].validated
)
5734 error ("unrecognized option `-%s'", switches
[i
].part1
);
5736 /* Obey some of the options. */
5738 if (print_search_dirs
)
5740 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5741 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5742 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5746 if (print_file_name
)
5748 printf ("%s\n", find_file (print_file_name
));
5752 if (print_prog_name
)
5754 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5755 printf ("%s\n", (newname
? newname
: print_prog_name
));
5759 if (print_multi_lib
)
5761 print_multilib_info ();
5765 if (print_multi_directory
)
5767 if (multilib_dir
== NULL
)
5770 printf ("%s\n", multilib_dir
);
5774 if (target_help_flag
)
5776 /* Print if any target specific options.*/
5778 /* We do not exit here. Instead we have created a fake input file
5779 called 'target-dummy' which needs to be compiled, and we pass this
5780 on to the various sub-processes, along with the --target-help
5784 if (print_help_list
)
5790 printf (_("\nFor bug reporting instructions, please see:\n"));
5791 printf ("%s.\n", GCCBUGURL
);
5796 /* We do not exit here. Instead we have created a fake input file
5797 called 'help-dummy' which needs to be compiled, and we pass this
5798 on the the various sub-processes, along with the --help switch. */
5805 notice ("Configured with: %s\n", configuration_arguments
);
5807 notice ("Thread model: %s\n", thread_model
);
5809 /* compiler_version is truncated at the first space when initialized
5810 from version string, so truncate version_string at the first space
5811 before comparing. */
5812 for (n
= 0; version_string
[n
]; n
++)
5813 if (version_string
[n
] == ' ')
5816 if (! strncmp (version_string
, compiler_version
, n
)
5817 && compiler_version
[n
] == 0)
5818 notice ("gcc version %s\n", version_string
);
5820 notice ("gcc driver version %s executing gcc version %s\n",
5821 version_string
, compiler_version
);
5827 if (n_infiles
== added_libraries
)
5828 fatal ("No input files");
5830 /* Make a place to record the compiler output file names
5831 that correspond to the input files. */
5834 i
+= lang_specific_extra_outfiles
;
5835 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5837 /* Record which files were specified explicitly as link input. */
5839 explicit_link_files
= xcalloc (1, n_infiles
);
5841 for (i
= 0; (int) i
< n_infiles
; i
++)
5843 int this_file_error
= 0;
5845 /* Tell do_spec what to substitute for %i. */
5847 input_file_number
= i
;
5848 set_input (infiles
[i
].name
);
5850 /* Use the same thing in %o, unless cp->spec says otherwise. */
5852 outfiles
[i
] = input_filename
;
5854 /* Figure out which compiler from the file's suffix. */
5857 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
5858 infiles
[i
].language
);
5860 if (input_file_compiler
)
5862 /* Ok, we found an applicable compiler. Run its spec. */
5864 if (input_file_compiler
->spec
[0] == '#')
5865 error ("%s: %s compiler not installed on this system",
5866 input_filename
, &input_file_compiler
->spec
[1]);
5867 value
= do_spec (input_file_compiler
->spec
);
5869 this_file_error
= 1;
5872 /* If this file's name does not contain a recognized suffix,
5873 record it as explicit linker input. */
5876 explicit_link_files
[i
] = 1;
5878 /* Clear the delete-on-failure queue, deleting the files in it
5879 if this compilation failed. */
5881 if (this_file_error
)
5883 delete_failure_queue ();
5886 /* If this compilation succeeded, don't delete those files later. */
5887 clear_failure_queue ();
5890 /* Reset the output file name to the first input file name, for use
5891 with %b in LINK_SPEC on a target that prefers not to emit a.out
5894 set_input (infiles
[0].name
);
5896 if (error_count
== 0)
5898 /* Make sure INPUT_FILE_NUMBER points to first available open
5900 input_file_number
= n_infiles
;
5901 if (lang_specific_pre_link ())
5905 /* Run ld to link all the compiler output files. */
5907 if (error_count
== 0)
5909 int tmp
= execution_count
;
5911 /* We'll use ld if we can't find collect2. */
5912 if (! strcmp (linker_name_spec
, "collect2"))
5914 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5916 linker_name_spec
= "ld";
5918 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5920 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
5921 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
5923 value
= do_spec (link_command_spec
);
5926 linker_was_run
= (tmp
!= execution_count
);
5929 /* If options said don't run linker,
5930 complain about input files to be given to the linker. */
5932 if (! linker_was_run
&& error_count
== 0)
5933 for (i
= 0; (int) i
< n_infiles
; i
++)
5934 if (explicit_link_files
[i
])
5935 error ("%s: linker input file unused because linking not done",
5938 /* Delete some or all of the temporary files we made. */
5941 delete_failure_queue ();
5942 delete_temp_files ();
5944 if (print_help_list
)
5946 printf (("\nFor bug reporting instructions, please see:\n"));
5947 printf ("%s\n", GCCBUGURL
);
5950 return (signal_count
!= 0 ? 2
5951 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5955 /* Find the proper compilation spec for the file name NAME,
5956 whose length is LENGTH. LANGUAGE is the specified language,
5957 or 0 if this file is to be passed to the linker. */
5959 static struct compiler
*
5960 lookup_compiler (name
, length
, language
)
5963 const char *language
;
5965 struct compiler
*cp
;
5967 /* If this was specified by the user to be a linker input, indicate that. */
5968 if (language
!= 0 && language
[0] == '*')
5971 /* Otherwise, look for the language, if one is spec'd. */
5974 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5975 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5978 error ("language %s not recognized", language
);
5982 /* Look for a suffix. */
5983 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5985 if (/* The suffix `-' matches only the file name `-'. */
5986 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5987 || (strlen (cp
->suffix
) < length
5988 /* See if the suffix matches the end of NAME. */
5989 && !strcmp (cp
->suffix
,
5990 name
+ length
- strlen (cp
->suffix
))
5995 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5996 /* look again, but case-insensitively this time. */
5998 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6000 if (/* The suffix `-' matches only the file name `-'. */
6001 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6002 || (strlen (cp
->suffix
) < length
6003 /* See if the suffix matches the end of NAME. */
6004 && ((!strcmp (cp
->suffix
,
6005 name
+ length
- strlen (cp
->suffix
))
6006 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6007 && !strcasecmp (cp
->suffix
,
6008 name
+ length
- strlen (cp
->suffix
)))
6014 if (cp
>= compilers
)
6016 if (cp
->spec
[0] != '@')
6017 /* A non-alias entry: return it. */
6020 /* An alias entry maps a suffix to a language.
6021 Search for the language; pass 0 for NAME and LENGTH
6022 to avoid infinite recursion if language not found. */
6023 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6029 save_string (s
, len
)
6033 register char *result
= xmalloc (len
+ 1);
6035 memcpy (result
, s
, len
);
6041 pfatal_with_name (name
)
6044 perror_with_name (name
);
6045 delete_temp_files ();
6050 perror_with_name (name
)
6053 error ("%s: %s", name
, xstrerror (errno
));
6057 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6058 const char *errmsg_fmt
;
6059 const char *errmsg_arg
;
6063 int save_errno
= errno
;
6065 /* Space for trailing '\0' is in %s. */
6066 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6067 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6073 pfatal_with_name (errmsg_fmt
);
6076 /* Output an error message and exit */
6081 fatal ("Internal gcc abort.");
6084 /* Output an error message and exit */
6087 fatal
VPARAMS ((const char *msgid
, ...))
6089 #ifndef ANSI_PROTOTYPES
6094 VA_START (ap
, msgid
);
6096 #ifndef ANSI_PROTOTYPES
6097 msgid
= va_arg (ap
, const char *);
6100 fprintf (stderr
, "%s: ", programname
);
6101 vfprintf (stderr
, _(msgid
), ap
);
6103 fprintf (stderr
, "\n");
6104 delete_temp_files ();
6109 error
VPARAMS ((const char *msgid
, ...))
6111 #ifndef ANSI_PROTOTYPES
6116 VA_START (ap
, msgid
);
6118 #ifndef ANSI_PROTOTYPES
6119 msgid
= va_arg (ap
, const char *);
6122 fprintf (stderr
, "%s: ", programname
);
6123 vfprintf (stderr
, _(msgid
), ap
);
6126 fprintf (stderr
, "\n");
6130 notice
VPARAMS ((const char *msgid
, ...))
6132 #ifndef ANSI_PROTOTYPES
6137 VA_START (ap
, msgid
);
6139 #ifndef ANSI_PROTOTYPES
6140 msgid
= va_arg (ap
, const char *);
6143 vfprintf (stderr
, _(msgid
), ap
);
6148 validate_all_switches ()
6150 struct compiler
*comp
;
6151 register const char *p
;
6153 struct spec_list
*spec
;
6155 for (comp
= compilers
; comp
->spec
; comp
++)
6159 if (c
== '%' && *p
== '{')
6160 /* We have a switch spec. */
6161 validate_switches (p
+ 1);
6164 /* Look through the linked list of specs read from the specs file. */
6165 for (spec
= specs
; spec
; spec
= spec
->next
)
6167 p
= *(spec
->ptr_spec
);
6169 if (c
== '%' && *p
== '{')
6170 /* We have a switch spec. */
6171 validate_switches (p
+ 1);
6174 p
= link_command_spec
;
6176 if (c
== '%' && *p
== '{')
6177 /* We have a switch spec. */
6178 validate_switches (p
+ 1);
6181 /* Look at the switch-name that comes after START
6182 and mark as valid all supplied switches that match it. */
6185 validate_switches (start
)
6188 register const char *p
= start
;
6205 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6210 else if (p
[-1] == '*')
6212 /* Mark all matching switches as valid. */
6213 for (i
= 0; i
< n_switches
; i
++)
6214 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6215 switches
[i
].validated
= 1;
6219 /* Mark an exact matching switch as valid. */
6220 for (i
= 0; i
< n_switches
; i
++)
6222 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6223 && switches
[i
].part1
[p
- filter
] == 0)
6224 switches
[i
].validated
= 1;
6228 if (*p
++ == '|' || p
[-1] == '&')
6232 /* Check whether a particular argument was used. The first time we
6233 canonicalize the switches to keep only the ones we care about. */
6243 const char *replace
;
6248 static struct mswitchstr
*mswitches
;
6249 static int n_mswitches
;
6254 struct mswitchstr
*matches
;
6258 /* Break multilib_matches into the component strings of string
6259 and replacement string. */
6260 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6265 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6267 q
= multilib_matches
;
6277 matches
[i
].len
= q
- matches
[i
].str
;
6279 matches
[i
].replace
= ++q
;
6280 while (*q
!= ';' && *q
!= '\0')
6286 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6292 /* Now build a list of the replacement string for switches that we care
6293 about. Make sure we allocate at least one entry. This prevents
6294 xmalloc from calling fatal, and prevents us from re-executing this
6297 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6298 * (n_switches
? n_switches
: 1));
6299 for (i
= 0; i
< n_switches
; i
++)
6301 int xlen
= strlen (switches
[i
].part1
);
6302 for (j
= 0; j
< cnt
; j
++)
6303 if (xlen
== matches
[j
].len
6304 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6306 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6307 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6308 mswitches
[n_mswitches
].replace
= (char *) 0;
6309 mswitches
[n_mswitches
].rep_len
= 0;
6316 for (i
= 0; i
< n_mswitches
; i
++)
6317 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6324 default_arg (p
, len
)
6328 const char *start
, *end
;
6330 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6332 while (*start
== ' ' || *start
== '\t')
6338 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6341 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6351 /* Work out the subdirectory to use based on the options. The format of
6352 multilib_select is a list of elements. Each element is a subdirectory
6353 name followed by a list of options followed by a semicolon. The format
6354 of multilib_exclusions is the same, but without the preceding
6355 directory. First gcc will check the exclusions, if none of the options
6356 beginning with an exclamation point are present, and all of the other
6357 options are present, then we will ignore this completely. Passing
6358 that, gcc will consider each multilib_select in turn using the same
6359 rules for matching the options. If a match is found, that subdirectory
6366 unsigned int this_path_len
;
6367 const char *this_path
, *this_arg
;
6371 p
= multilib_exclusions
;
6374 /* Ignore newlines. */
6381 /* Check the arguments. */
6395 while (*p
!= ' ' && *p
!= ';')
6402 if (*this_arg
!= '!')
6410 ok
= used_arg (this_arg
, p
- this_arg
);
6424 p
= multilib_select
;
6427 /* Ignore newlines. */
6434 /* Get the initial path. */
6442 this_path_len
= p
- this_path
;
6444 /* Check the arguments. */
6459 while (*p
!= ' ' && *p
!= ';')
6466 if (*this_arg
!= '!')
6474 /* If this is a default argument, we can just ignore it.
6475 This is true even if this_arg begins with '!'. Beginning
6476 with '!' does not mean that this argument is necessarily
6477 inappropriate for this library: it merely means that
6478 there is a more specific library which uses this
6479 argument. If this argument is a default, we need not
6480 consider that more specific library. */
6481 if (! default_arg (this_arg
, p
- this_arg
))
6483 ok
= used_arg (this_arg
, p
- this_arg
);
6494 if (this_path_len
!= 1
6495 || this_path
[0] != '.')
6497 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6498 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6499 new_multilib_dir
[this_path_len
] = '\0';
6500 multilib_dir
= new_multilib_dir
;
6509 /* Print out the multiple library subdirectory selection
6510 information. This prints out a series of lines. Each line looks
6511 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6512 required. Only the desired options are printed out, the negative
6513 matches. The options are print without a leading dash. There are
6514 no spaces to make it easy to use the information in the shell.
6515 Each subdirectory is printed only once. This assumes the ordering
6516 generated by the genmultilib script. Also, we leave out ones that match
6520 print_multilib_info ()
6522 const char *p
= multilib_select
;
6523 const char *last_path
= 0, *this_path
;
6525 unsigned int last_path_len
= 0;
6530 /* Ignore newlines. */
6537 /* Get the initial path. */
6546 /* Check for matches with the multilib_exclusions. We don't bother
6547 with the '!' in either list. If any of the exclusion rules match
6548 all of its options with the select rule, we skip it. */
6550 const char *e
= multilib_exclusions
;
6551 const char *this_arg
;
6556 /* Ignore newlines. */
6563 /* Check the arguments. */
6580 while (*e
!= ' ' && *e
!= ';')
6591 int len
= e
- this_arg
;
6598 while (*q
!= ' ' && *q
!= ';')
6605 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6606 default_arg (this_arg
, e
- this_arg
))
6636 /* If this is a duplicate, skip it. */
6637 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6638 && ! strncmp (last_path
, this_path
, last_path_len
));
6640 last_path
= this_path
;
6641 last_path_len
= p
- this_path
;
6644 /* If this directory requires any default arguments, we can skip
6645 it. We will already have printed a directory identical to
6646 this one which does not require that default argument. */
6664 while (*q
!= ' ' && *q
!= ';')
6672 && default_arg (arg
, q
- arg
))
6687 for (p1
= last_path
; p1
< p
; p1
++)
6706 use_arg
= *p
!= '!';
6711 while (*p
!= ' ' && *p
!= ';')
6726 /* If there are extra options, print them now. */
6727 if (multilib_extra
&& *multilib_extra
)
6729 int print_at
= TRUE
;
6732 for (q
= multilib_extra
; *q
!= '\0'; q
++)