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 %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__}\
651 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
652 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
653 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
654 %{fshow-column} %{fno-show-column}\
655 %{fleading-underscore} %{fno-leading-underscore}\
656 %{fno-operator-names} %{ftabstop=*} %{remap}\
657 %{g3:-dD} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*&U*&A*} %{i*} %Z %i\
660 /* NB: This is shared amongst all front-ends. */
661 static const char *cc1_options
=
662 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
663 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
664 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
665 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
666 %{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 %s}", shared_name
, static_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 %s}}}",
1334 shared_name
, static_name
);
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
);
1457 #ifdef USE_AS_TRADITIONAL_FORMAT
1458 /* Prepend "--traditional-format" to whatever asm_spec we had before. */
1460 static char tf
[] = "--traditional-format ";
1461 obstack_grow (&obstack
, tf
, sizeof(tf
) - 1);
1462 obstack_grow0 (&obstack
, asm_spec
, strlen (asm_spec
));
1463 asm_spec
= obstack_finish (&obstack
);
1470 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1471 removed; If the spec starts with a + then SPEC is added to the end of the
1475 set_spec (name
, spec
)
1479 struct spec_list
*sl
;
1480 const char *old_spec
;
1481 int name_len
= strlen (name
);
1484 /* If this is the first call, initialize the statically allocated specs. */
1487 struct spec_list
*next
= (struct spec_list
*) 0;
1488 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1490 sl
= &static_specs
[i
];
1497 /* See if the spec already exists. */
1498 for (sl
= specs
; sl
; sl
= sl
->next
)
1499 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1504 /* Not found - make it. */
1505 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1506 sl
->name
= xstrdup (name
);
1507 sl
->name_len
= name_len
;
1508 sl
->ptr_spec
= &sl
->ptr
;
1510 *(sl
->ptr_spec
) = "";
1515 old_spec
= *(sl
->ptr_spec
);
1516 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1517 ? concat (old_spec
, spec
+ 1, NULL
)
1522 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1525 /* Free the old spec. */
1526 if (old_spec
&& sl
->alloc_p
)
1527 free ((PTR
) old_spec
);
1532 /* Accumulate a command (program name and args), and run it. */
1534 /* Vector of pointers to arguments in the current line of specifications. */
1536 static const char **argbuf
;
1538 /* Number of elements allocated in argbuf. */
1540 static int argbuf_length
;
1542 /* Number of elements in argbuf currently in use (containing args). */
1544 static int argbuf_index
;
1546 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1547 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1550 static struct temp_name
{
1551 const char *suffix
; /* suffix associated with the code. */
1552 int length
; /* strlen (suffix). */
1553 int unique
; /* Indicates whether %g or %u/%U was used. */
1554 const char *filename
; /* associated filename. */
1555 int filename_length
; /* strlen (filename). */
1556 struct temp_name
*next
;
1559 /* Number of commands executed so far. */
1561 static int execution_count
;
1563 /* Number of commands that exited with a signal. */
1565 static int signal_count
;
1567 /* Name with which this program was invoked. */
1569 static const char *programname
;
1571 /* Clear out the vector of arguments (after a command is executed). */
1579 /* Add one argument to the vector at the end.
1580 This is done when a space is seen or at the end of the line.
1581 If DELETE_ALWAYS is nonzero, the arg is a filename
1582 and the file should be deleted eventually.
1583 If DELETE_FAILURE is nonzero, the arg is a filename
1584 and the file should be deleted if this compilation fails. */
1587 store_arg (arg
, delete_always
, delete_failure
)
1589 int delete_always
, delete_failure
;
1591 if (argbuf_index
+ 1 == argbuf_length
)
1593 = (const char **) xrealloc (argbuf
,
1594 (argbuf_length
*= 2) * sizeof (const char *));
1596 argbuf
[argbuf_index
++] = arg
;
1597 argbuf
[argbuf_index
] = 0;
1599 if (delete_always
|| delete_failure
)
1600 record_temp_file (arg
, delete_always
, delete_failure
);
1603 /* Load specs from a file name named FILENAME, replacing occurances of
1604 various different types of line-endings, \r\n, \n\r and just \r, with
1608 load_specs (filename
)
1609 const char *filename
;
1613 struct stat statbuf
;
1620 notice ("Reading specs from %s\n", filename
);
1622 /* Open and stat the file. */
1623 desc
= open (filename
, O_RDONLY
, 0);
1625 pfatal_with_name (filename
);
1626 if (stat (filename
, &statbuf
) < 0)
1627 pfatal_with_name (filename
);
1629 /* Read contents of file into BUFFER. */
1630 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1631 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1633 pfatal_with_name (filename
);
1634 buffer
[readlen
] = 0;
1637 specs
= xmalloc (readlen
+ 1);
1639 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1645 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1647 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1661 /* Read compilation specs from a file named FILENAME,
1662 replacing the default ones.
1664 A suffix which starts with `*' is a definition for
1665 one of the machine-specific sub-specs. The "suffix" should be
1666 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1667 The corresponding spec is stored in asm_spec, etc.,
1668 rather than in the `compilers' vector.
1670 Anything invalid in the file is a fatal error. */
1673 read_specs (filename
, main_p
)
1674 const char *filename
;
1680 buffer
= load_specs (filename
);
1682 /* Scan BUFFER for specs, putting them in the vector. */
1688 char *in
, *out
, *p1
, *p2
, *p3
;
1690 /* Advance P in BUFFER to the next nonblank nocomment line. */
1691 p
= skip_whitespace (p
);
1695 /* Is this a special command that starts with '%'? */
1696 /* Don't allow this for the main specs file, since it would
1697 encourage people to overwrite it. */
1698 if (*p
== '%' && !main_p
)
1701 while (*p
&& *p
!= '\n')
1707 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1708 && (p1
[sizeof "%include" - 1] == ' '
1709 || p1
[sizeof "%include" - 1] == '\t'))
1713 p1
+= sizeof ("%include");
1714 while (*p1
== ' ' || *p1
== '\t')
1717 if (*p1
++ != '<' || p
[-2] != '>')
1718 fatal ("specs %%include syntax malformed after %ld characters",
1719 (long) (p1
- buffer
+ 1));
1722 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1723 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1726 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1727 && (p1
[sizeof "%include_noerr" - 1] == ' '
1728 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1732 p1
+= sizeof "%include_noerr";
1733 while (*p1
== ' ' || *p1
== '\t')
1736 if (*p1
++ != '<' || p
[-2] != '>')
1737 fatal ("specs %%include syntax malformed after %ld characters",
1738 (long) (p1
- buffer
+ 1));
1741 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1743 read_specs (new_filename
, FALSE
);
1744 else if (verbose_flag
)
1745 notice ("Could not find specs file %s\n", p1
);
1748 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1749 && (p1
[sizeof "%rename" - 1] == ' '
1750 || p1
[sizeof "%rename" - 1] == '\t'))
1753 struct spec_list
*sl
;
1755 /* Get original name */
1756 p1
+= sizeof "%rename";
1757 while (*p1
== ' ' || *p1
== '\t')
1760 if (! ISALPHA ((unsigned char) *p1
))
1761 fatal ("specs %%rename syntax malformed after %ld characters",
1762 (long) (p1
- buffer
));
1765 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1768 if (*p2
!= ' ' && *p2
!= '\t')
1769 fatal ("specs %%rename syntax malformed after %ld characters",
1770 (long) (p2
- buffer
));
1774 while (*p2
== ' ' || *p2
== '\t')
1777 if (! ISALPHA ((unsigned char) *p2
))
1778 fatal ("specs %%rename syntax malformed after %ld characters",
1779 (long) (p2
- buffer
));
1781 /* Get new spec name. */
1783 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1787 fatal ("specs %%rename syntax malformed after %ld characters",
1788 (long) (p3
- buffer
));
1791 for (sl
= specs
; sl
; sl
= sl
->next
)
1792 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1796 fatal ("specs %s spec was not found to be renamed", p1
);
1798 if (strcmp (p1
, p2
) == 0)
1803 notice ("rename spec %s to %s\n", p1
, p2
);
1805 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1809 set_spec (p2
, *(sl
->ptr_spec
));
1811 free ((PTR
) *(sl
->ptr_spec
));
1813 *(sl
->ptr_spec
) = "";
1818 fatal ("specs unknown %% command after %ld characters",
1819 (long) (p1
- buffer
));
1822 /* Find the colon that should end the suffix. */
1824 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1827 /* The colon shouldn't be missing. */
1829 fatal ("specs file malformed after %ld characters",
1830 (long) (p1
- buffer
));
1832 /* Skip back over trailing whitespace. */
1834 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1837 /* Copy the suffix to a string. */
1838 suffix
= save_string (p
, p2
- p
);
1839 /* Find the next line. */
1840 p
= skip_whitespace (p1
+ 1);
1842 fatal ("specs file malformed after %ld characters",
1843 (long) (p
- buffer
));
1846 /* Find next blank line or end of string. */
1847 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1850 /* Specs end at the blank line and do not include the newline. */
1851 spec
= save_string (p
, p1
- p
);
1854 /* Delete backslash-newline sequences from the spec. */
1859 if (in
[0] == '\\' && in
[1] == '\n')
1861 else if (in
[0] == '#')
1862 while (*in
&& *in
!= '\n')
1870 if (suffix
[0] == '*')
1872 if (! strcmp (suffix
, "*link_command"))
1873 link_command_spec
= spec
;
1875 set_spec (suffix
+ 1, spec
);
1879 /* Add this pair to the vector. */
1881 = ((struct compiler
*)
1882 xrealloc (compilers
,
1883 (n_compilers
+ 2) * sizeof (struct compiler
)));
1885 compilers
[n_compilers
].suffix
= suffix
;
1886 compilers
[n_compilers
].spec
= spec
;
1888 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1892 link_command_spec
= spec
;
1895 if (link_command_spec
== 0)
1896 fatal ("spec file has no spec for linking");
1899 /* Record the names of temporary files we tell compilers to write,
1900 and delete them at the end of the run. */
1902 /* This is the common prefix we use to make temp file names.
1903 It is chosen once for each run of this program.
1904 It is substituted into a spec by %g or %j.
1905 Thus, all temp file names contain this prefix.
1906 In practice, all temp file names start with this prefix.
1908 This prefix comes from the envvar TMPDIR if it is defined;
1909 otherwise, from the P_tmpdir macro if that is defined;
1910 otherwise, in /usr/tmp or /tmp;
1911 or finally the current directory if all else fails. */
1913 static const char *temp_filename
;
1915 /* Length of the prefix. */
1917 static int temp_filename_length
;
1919 /* Define the list of temporary files to delete. */
1924 struct temp_file
*next
;
1927 /* Queue of files to delete on success or failure of compilation. */
1928 static struct temp_file
*always_delete_queue
;
1929 /* Queue of files to delete on failure of compilation. */
1930 static struct temp_file
*failure_delete_queue
;
1932 /* Record FILENAME as a file to be deleted automatically.
1933 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1934 otherwise delete it in any case.
1935 FAIL_DELETE nonzero means delete it if a compilation step fails;
1936 otherwise delete it in any case. */
1939 record_temp_file (filename
, always_delete
, fail_delete
)
1940 const char *filename
;
1944 register char *const name
= xstrdup (filename
);
1948 register struct temp_file
*temp
;
1949 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1950 if (! strcmp (name
, temp
->name
))
1953 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1954 temp
->next
= always_delete_queue
;
1956 always_delete_queue
= temp
;
1963 register struct temp_file
*temp
;
1964 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1965 if (! strcmp (name
, temp
->name
))
1968 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1969 temp
->next
= failure_delete_queue
;
1971 failure_delete_queue
= temp
;
1977 /* Delete all the temporary files whose names we previously recorded. */
1980 delete_if_ordinary (name
)
1987 printf ("Delete %s? (y or n) ", name
);
1991 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1994 if (i
== 'y' || i
== 'Y')
1996 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1997 if (unlink (name
) < 0)
1999 perror_with_name (name
);
2003 delete_temp_files ()
2005 register struct temp_file
*temp
;
2007 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
2008 delete_if_ordinary (temp
->name
);
2009 always_delete_queue
= 0;
2012 /* Delete all the files to be deleted on error. */
2015 delete_failure_queue ()
2017 register struct temp_file
*temp
;
2019 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
2020 delete_if_ordinary (temp
->name
);
2024 clear_failure_queue ()
2026 failure_delete_queue
= 0;
2029 /* Build a list of search directories from PATHS.
2030 PREFIX is a string to prepend to the list.
2031 If CHECK_DIR_P is non-zero we ensure the directory exists.
2032 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2033 It is also used by the --print-search-dirs flag. */
2036 build_search_list (paths
, prefix
, check_dir_p
)
2037 struct path_prefix
*paths
;
2041 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
2043 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
2044 int first_time
= TRUE
;
2045 struct prefix_list
*pprefix
;
2047 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
2048 obstack_1grow (&collect_obstack
, '=');
2050 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
2052 int len
= strlen (pprefix
->prefix
);
2056 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
2059 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2062 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2063 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
2066 if (just_machine_suffix
2067 && pprefix
->require_machine_suffix
== 2
2069 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
2072 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2075 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2076 obstack_grow (&collect_obstack
, just_machine_suffix
,
2080 if (! pprefix
->require_machine_suffix
)
2083 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
2086 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2090 obstack_1grow (&collect_obstack
, '\0');
2091 return obstack_finish (&collect_obstack
);
2094 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2098 putenv_from_prefixes (paths
, env_var
)
2099 struct path_prefix
*paths
;
2100 const char *env_var
;
2102 putenv (build_search_list (paths
, env_var
, 1));
2107 /* FIXME: the location independence code for VMS is hairier than this,
2108 and hasn't been written. */
2110 /* Split a filename into component directories. */
2113 split_directories (name
, ptr_num_dirs
)
2122 /* Count the number of directories. Special case MSDOS disk names as part
2123 of the initial directory. */
2125 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2126 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2131 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2133 while ((ch
= *p
++) != '\0')
2135 if (IS_DIR_SEPARATOR (ch
))
2138 while (IS_DIR_SEPARATOR (*p
))
2143 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2145 /* Now copy the directory parts. */
2148 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2149 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2151 dirs
[num_dirs
++] = save_string (p
, 3);
2154 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2157 while ((ch
= *p
++) != '\0')
2159 if (IS_DIR_SEPARATOR (ch
))
2161 while (IS_DIR_SEPARATOR (*p
))
2164 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2170 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2172 dirs
[num_dirs
] = NULL
;
2174 *ptr_num_dirs
= num_dirs
;
2179 /* Release storage held by split directories. */
2182 free_split_directories (dirs
)
2187 while (dirs
[i
] != NULL
)
2190 free ((char *) dirs
);
2193 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2194 to PREFIX starting with the directory portion of PROGNAME and a relative
2195 pathname of the difference between BIN_PREFIX and PREFIX.
2197 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2198 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2199 function will return /red/green/blue/../omega.
2201 If no relative prefix can be found, return NULL. */
2204 make_relative_prefix (progname
, bin_prefix
, prefix
)
2205 const char *progname
;
2206 const char *bin_prefix
;
2209 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2210 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2213 prog_dirs
= split_directories (progname
, &prog_num
);
2214 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2216 /* If there is no full pathname, try to find the program by checking in each
2217 of the directories specified in the PATH environment variable. */
2222 GET_ENV_PATH_LIST (temp
, "PATH");
2225 char *startp
, *endp
;
2226 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2228 startp
= endp
= temp
;
2231 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2236 nstore
[1] = DIR_SEPARATOR
;
2241 strncpy (nstore
, startp
, endp
- startp
);
2242 if (! IS_DIR_SEPARATOR (endp
[-1]))
2244 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2245 nstore
[endp
- startp
+ 1] = 0;
2248 nstore
[endp
- startp
] = 0;
2250 strcat (nstore
, progname
);
2251 if (! access (nstore
, X_OK
)
2252 #ifdef HAVE_HOST_EXECUTABLE_SUFFIX
2253 || ! access (strcat (nstore
, HOST_EXECUTABLE_SUFFIX
), X_OK
)
2257 free_split_directories (prog_dirs
);
2259 prog_dirs
= split_directories (progname
, &prog_num
);
2265 endp
= startp
= endp
+ 1;
2273 /* Remove the program name from comparison of directory names. */
2276 /* Determine if the compiler is installed in the standard location, and if
2277 so, we don't need to specify relative directories. Also, if argv[0]
2278 doesn't contain any directory specifiers, there is not much we can do. */
2280 if (prog_num
== bin_num
)
2282 for (i
= 0; i
< bin_num
; i
++)
2284 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2288 if (prog_num
<= 0 || i
== bin_num
)
2291 free_split_directories (prog_dirs
);
2292 free_split_directories (bin_dirs
);
2293 prog_dirs
= bin_dirs
= (char **) 0;
2298 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2300 /* Find how many directories are in common between bin_prefix & prefix. */
2301 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2302 for (common
= 0; common
< n
; common
++)
2304 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2308 /* If there are no common directories, there can be no relative prefix. */
2311 free_split_directories (prog_dirs
);
2312 free_split_directories (bin_dirs
);
2313 free_split_directories (prefix_dirs
);
2317 /* Build up the pathnames in argv[0]. */
2318 for (i
= 0; i
< prog_num
; i
++)
2319 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2321 /* Now build up the ..'s. */
2322 for (i
= common
; i
< n
; i
++)
2324 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2325 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2328 /* Put in directories to move over to prefix. */
2329 for (i
= common
; i
< prefix_num
; i
++)
2330 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2332 free_split_directories (prog_dirs
);
2333 free_split_directories (bin_dirs
);
2334 free_split_directories (prefix_dirs
);
2336 obstack_1grow (&obstack
, '\0');
2337 return obstack_finish (&obstack
);
2341 /* Check whether NAME can be accessed in MODE. This is like access,
2342 except that it never considers directories to be executable. */
2345 access_check (name
, mode
)
2353 if (stat (name
, &st
) < 0
2354 || S_ISDIR (st
.st_mode
))
2358 return access (name
, mode
);
2361 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2362 access to check permissions.
2363 Return 0 if not found, otherwise return its name, allocated with malloc. */
2366 find_a_file (pprefix
, name
, mode
)
2367 struct path_prefix
*pprefix
;
2372 const char *file_suffix
= ((mode
& X_OK
) != 0 ? HOST_EXECUTABLE_SUFFIX
: "");
2373 struct prefix_list
*pl
;
2374 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2376 #ifdef DEFAULT_ASSEMBLER
2377 if (! strcmp (name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2378 return xstrdup (DEFAULT_ASSEMBLER
);
2381 #ifdef DEFAULT_LINKER
2382 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2383 return xstrdup (DEFAULT_LINKER
);
2387 len
+= strlen (machine_suffix
);
2389 temp
= xmalloc (len
);
2391 /* Determine the filename to execute (special case for absolute paths). */
2393 if (IS_ABSOLUTE_PATHNAME (name
))
2395 if (access (name
, mode
) == 0)
2397 strcpy (temp
, name
);
2402 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2406 /* Some systems have a suffix for executable files.
2407 So try appending that first. */
2408 if (file_suffix
[0] != 0)
2410 strcpy (temp
, pl
->prefix
);
2411 strcat (temp
, machine_suffix
);
2412 strcat (temp
, name
);
2413 strcat (temp
, file_suffix
);
2414 if (access_check (temp
, mode
) == 0)
2416 if (pl
->used_flag_ptr
!= 0)
2417 *pl
->used_flag_ptr
= 1;
2422 /* Now try just the name. */
2423 strcpy (temp
, pl
->prefix
);
2424 strcat (temp
, machine_suffix
);
2425 strcat (temp
, name
);
2426 if (access_check (temp
, mode
) == 0)
2428 if (pl
->used_flag_ptr
!= 0)
2429 *pl
->used_flag_ptr
= 1;
2434 /* Certain prefixes are tried with just the machine type,
2435 not the version. This is used for finding as, ld, etc. */
2436 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2438 /* Some systems have a suffix for executable files.
2439 So try appending that first. */
2440 if (file_suffix
[0] != 0)
2442 strcpy (temp
, pl
->prefix
);
2443 strcat (temp
, just_machine_suffix
);
2444 strcat (temp
, name
);
2445 strcat (temp
, file_suffix
);
2446 if (access_check (temp
, mode
) == 0)
2448 if (pl
->used_flag_ptr
!= 0)
2449 *pl
->used_flag_ptr
= 1;
2454 strcpy (temp
, pl
->prefix
);
2455 strcat (temp
, just_machine_suffix
);
2456 strcat (temp
, name
);
2457 if (access_check (temp
, mode
) == 0)
2459 if (pl
->used_flag_ptr
!= 0)
2460 *pl
->used_flag_ptr
= 1;
2465 /* Certain prefixes can't be used without the machine suffix
2466 when the machine or version is explicitly specified. */
2467 if (! pl
->require_machine_suffix
)
2469 /* Some systems have a suffix for executable files.
2470 So try appending that first. */
2471 if (file_suffix
[0] != 0)
2473 strcpy (temp
, pl
->prefix
);
2474 strcat (temp
, name
);
2475 strcat (temp
, file_suffix
);
2476 if (access_check (temp
, mode
) == 0)
2478 if (pl
->used_flag_ptr
!= 0)
2479 *pl
->used_flag_ptr
= 1;
2484 strcpy (temp
, pl
->prefix
);
2485 strcat (temp
, name
);
2486 if (access_check (temp
, mode
) == 0)
2488 if (pl
->used_flag_ptr
!= 0)
2489 *pl
->used_flag_ptr
= 1;
2499 /* Ranking of prefixes in the sort list. -B prefixes are put before
2502 enum path_prefix_priority
2504 PREFIX_PRIORITY_B_OPT
,
2505 PREFIX_PRIORITY_LAST
2508 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2509 order according to PRIORITY. Within each PRIORITY, new entries are
2512 If WARN is nonzero, we will warn if no file is found
2513 through this prefix. WARN should point to an int
2514 which will be set to 1 if this entry is used.
2516 COMPONENT is the value to be passed to update_path.
2518 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2519 the complete value of machine_suffix.
2520 2 means try both machine_suffix and just_machine_suffix. */
2523 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2524 struct path_prefix
*pprefix
;
2526 const char *component
;
2527 /* enum prefix_priority */ int priority
;
2528 int require_machine_suffix
;
2531 struct prefix_list
*pl
, **prev
;
2534 for (prev
= &pprefix
->plist
;
2535 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2536 prev
= &(*prev
)->next
)
2539 /* Keep track of the longest prefix */
2541 prefix
= update_path (prefix
, component
);
2542 len
= strlen (prefix
);
2543 if (len
> pprefix
->max_len
)
2544 pprefix
->max_len
= len
;
2546 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2547 pl
->prefix
= save_string (prefix
, len
);
2548 pl
->require_machine_suffix
= require_machine_suffix
;
2549 pl
->used_flag_ptr
= warn
;
2550 pl
->priority
= priority
;
2554 /* Insert after PREV */
2559 /* Execute the command specified by the arguments on the current line of spec.
2560 When using pipes, this includes several piped-together commands
2561 with `|' between them.
2563 Return 0 if successful, -1 if failed. */
2569 int n_commands
; /* # of command. */
2573 const char *prog
; /* program name. */
2574 const char **argv
; /* vector of args. */
2575 int pid
; /* pid of process for this command. */
2578 struct command
*commands
; /* each command buffer with above info. */
2580 /* Count # of piped commands. */
2581 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2582 if (strcmp (argbuf
[i
], "|") == 0)
2585 /* Get storage for each command. */
2586 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2588 /* Split argbuf into its separate piped processes,
2589 and record info about each one.
2590 Also search for the programs that are to be run. */
2592 commands
[0].prog
= argbuf
[0]; /* first command. */
2593 commands
[0].argv
= &argbuf
[0];
2594 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2597 commands
[0].argv
[0] = string
;
2599 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2600 if (strcmp (argbuf
[i
], "|") == 0)
2601 { /* each command. */
2602 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2603 fatal ("-pipe not supported");
2605 argbuf
[i
] = 0; /* termination of command args. */
2606 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2607 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2608 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2610 commands
[n_commands
].argv
[0] = string
;
2614 argbuf
[argbuf_index
] = 0;
2616 /* If -v, print what we are about to do, and maybe query. */
2620 /* For help listings, put a blank line between sub-processes. */
2621 if (print_help_list
)
2622 fputc ('\n', stderr
);
2624 /* Print each piped command as a separate line. */
2625 for (i
= 0; i
< n_commands
; i
++)
2627 const char *const *j
;
2629 for (j
= commands
[i
].argv
; *j
; j
++)
2630 fprintf (stderr
, " %s", *j
);
2632 /* Print a pipe symbol after all but the last command. */
2633 if (i
+ 1 != n_commands
)
2634 fprintf (stderr
, " |");
2635 fprintf (stderr
, "\n");
2639 notice ("\nGo ahead? (y or n) ");
2643 while (getchar () != '\n')
2646 if (i
!= 'y' && i
!= 'Y')
2651 /* Run each piped subprocess. */
2653 for (i
= 0; i
< n_commands
; i
++)
2655 char *errmsg_fmt
, *errmsg_arg
;
2656 const char *string
= commands
[i
].argv
[0];
2658 /* For some bizarre reason, the second argument of execvp() is
2659 char *const *, not const char *const *. */
2660 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2661 programname
, temp_filename
,
2662 &errmsg_fmt
, &errmsg_arg
,
2663 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2664 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2665 | (string
== commands
[i
].prog
2666 ? PEXECUTE_SEARCH
: 0)
2667 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2669 if (commands
[i
].pid
== -1)
2670 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2672 if (string
!= commands
[i
].prog
)
2673 free ((PTR
) string
);
2678 /* Wait for all the subprocesses to finish.
2679 We don't care what order they finish in;
2680 we know that N_COMMANDS waits will get them all.
2681 Ignore subprocesses that we don't know about,
2682 since they can be spawned by the process that exec'ed us. */
2686 #ifdef HAVE_GETRUSAGE
2688 double ut
= 0.0, st
= 0.0;
2691 for (i
= 0; i
< n_commands
;)
2697 pid
= pwait (commands
[i
].pid
, &status
, 0);
2701 #ifdef HAVE_GETRUSAGE
2704 /* getrusage returns the total resource usage of all children
2705 up to now. Copy the previous values into prus, get the
2706 current statistics, then take the difference. */
2709 getrusage (RUSAGE_CHILDREN
, &rus
);
2710 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2711 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2712 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2714 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2715 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2716 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2720 for (j
= 0; j
< n_commands
; j
++)
2721 if (commands
[j
].pid
== pid
)
2724 if (WIFSIGNALED (status
))
2727 /* SIGPIPE is a special case. It happens in -pipe mode
2728 when the compiler dies before the preprocessor is
2729 done, or the assembler dies before the compiler is
2730 done. There's generally been an error already, and
2731 this is just fallout. So don't generate another error
2732 unless we would otherwise have succeeded. */
2733 if (WTERMSIG (status
) == SIGPIPE
2734 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2739 Internal error: %s (program %s)\n\
2740 Please submit a full bug report.\n\
2741 See %s for instructions.",
2742 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2747 else if (WIFEXITED (status
)
2748 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2750 if (WEXITSTATUS (status
) > greatest_status
)
2751 greatest_status
= WEXITSTATUS (status
);
2754 #ifdef HAVE_GETRUSAGE
2755 if (report_times
&& ut
+ st
!= 0)
2756 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2765 /* Find all the switches given to us
2766 and make a vector describing them.
2767 The elements of the vector are strings, one per switch given.
2768 If a switch uses following arguments, then the `part1' field
2769 is the switch itself and the `args' field
2770 is a null-terminated vector containing the following arguments.
2771 The `live_cond' field is:
2773 1 if the switch is true in a conditional spec,
2774 -1 if false (overridden by a later switch)
2775 -2 if this switch should be ignored (used in %{<S})
2776 The `validated' field is nonzero if any spec has looked at this switch;
2777 if it remains zero at the end of the run, it must be meaningless. */
2780 #define SWITCH_FALSE -1
2781 #define SWITCH_IGNORE -2
2782 #define SWITCH_LIVE 1
2789 unsigned char validated
;
2790 unsigned char ordering
;
2793 static struct switchstr
*switches
;
2795 static int n_switches
;
2800 const char *language
;
2803 /* Also a vector of input files specified. */
2805 static struct infile
*infiles
;
2809 /* This counts the number of libraries added by lang_specific_driver, so that
2810 we can tell if there were any user supplied any files or libraries. */
2812 static int added_libraries
;
2814 /* And a vector of corresponding output files is made up later. */
2816 const char **outfiles
;
2818 /* Used to track if none of the -B paths are used. */
2821 /* Used to track if standard path isn't used and -b or -V is specified. */
2822 static int warn_std
;
2824 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2825 static int *warn_std_ptr
= 0;
2827 #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2829 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2830 is true if we should look for an executable suffix as well. */
2833 convert_filename (name
, do_exe
)
2843 len
= strlen (name
);
2845 #ifdef HAVE_TARGET_OBJECT_SUFFIX
2846 /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
2848 && name
[len
- 2] == '.'
2849 && name
[len
- 1] == 'o')
2851 obstack_grow (&obstack
, name
, len
- 2);
2852 obstack_grow0 (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
2853 name
= obstack_finish (&obstack
);
2857 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
2858 /* If there is no filetype, make it the executable suffix (which includes
2859 the "."). But don't get confused if we have just "-o". */
2860 if (! do_exe
|| TARGET_EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2863 for (i
= len
- 1; i
>= 0; i
--)
2864 if (IS_DIR_SEPARATOR (name
[i
]))
2867 for (i
++; i
< len
; i
++)
2871 obstack_grow (&obstack
, name
, len
);
2872 obstack_grow0 (&obstack
, TARGET_EXECUTABLE_SUFFIX
,
2873 strlen (TARGET_EXECUTABLE_SUFFIX
));
2874 name
= obstack_finish (&obstack
);
2881 /* Display the command line switches accepted by gcc. */
2885 printf (_("Usage: %s [options] file...\n"), programname
);
2886 fputs (_("Options:\n"), stdout
);
2888 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2889 fputs (_(" --help Display this information\n"), stdout
);
2890 fputs (_(" --target-help Display target specific command line options\n"), stdout
);
2892 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2893 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2894 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2895 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2896 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2897 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2898 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2899 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2900 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2902 -print-multi-lib Display the mapping between command line options and\n\
2903 multiple library search directories\n"), stdout
);
2904 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2905 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2906 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2907 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2908 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2909 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2910 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2911 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
2912 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2913 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2914 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2915 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2916 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2917 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2918 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2919 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2920 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2922 -x <language> Specify the language of the following input files\n\
2923 Permissable languages include: c c++ assembler none\n\
2924 'none' means revert to the default behaviour of\n\
2925 guessing the language based on the file's extension\n\
2929 \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
2930 passed on to the various sub-processes invoked by %s. In order to pass\n\
2931 other options on to these processes the -W<letter> options must be used.\n\
2934 /* The rest of the options are displayed by invocations of the various
2939 add_preprocessor_option (option
, len
)
2943 n_preprocessor_options
++;
2945 if (! preprocessor_options
)
2946 preprocessor_options
2947 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2949 preprocessor_options
2950 = (char **) xrealloc (preprocessor_options
,
2951 n_preprocessor_options
* sizeof (char *));
2953 preprocessor_options
[n_preprocessor_options
- 1] =
2954 save_string (option
, len
);
2958 add_assembler_option (option
, len
)
2962 n_assembler_options
++;
2964 if (! assembler_options
)
2966 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2969 = (char **) xrealloc (assembler_options
,
2970 n_assembler_options
* sizeof (char *));
2972 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2976 add_linker_option (option
, len
)
2982 if (! linker_options
)
2984 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2987 = (char **) xrealloc (linker_options
,
2988 n_linker_options
* sizeof (char *));
2990 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2993 /* Create the vector `switches' and its contents.
2994 Store its length in `n_switches'. */
2997 process_command (argc
, argv
)
2999 const char *const *argv
;
3004 const char *spec_lang
= 0;
3005 int last_language_n_infiles
;
3008 int lang_n_infiles
= 0;
3009 #ifdef MODIFY_TARGET_NAME
3010 int is_modify_target_name
;
3014 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
3018 added_libraries
= 0;
3020 /* Figure compiler version from version string. */
3022 compiler_version
= temp1
= xstrdup (version_string
);
3024 for (; *temp1
; ++temp1
)
3033 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
3034 see if we can create it from the pathname specified in argv[0]. */
3037 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
3038 if (!gcc_exec_prefix
)
3040 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
3041 standard_exec_prefix
);
3042 if (gcc_exec_prefix
)
3043 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL
));
3047 if (gcc_exec_prefix
)
3049 int len
= strlen (gcc_exec_prefix
);
3051 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
3052 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
3054 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
3055 if (IS_DIR_SEPARATOR (*temp
)
3056 && strncmp (temp
+ 1, "lib", 3) == 0
3057 && IS_DIR_SEPARATOR (temp
[4])
3058 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
3059 len
-= sizeof ("/lib/gcc-lib/") - 1;
3062 set_std_prefix (gcc_exec_prefix
, len
);
3063 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
3064 PREFIX_PRIORITY_LAST
, 0, NULL
);
3065 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
3066 PREFIX_PRIORITY_LAST
, 0, NULL
);
3069 /* COMPILER_PATH and LIBRARY_PATH have values
3070 that are lists of directory names with colons. */
3072 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
3075 const char *startp
, *endp
;
3076 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3078 startp
= endp
= temp
;
3081 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3083 strncpy (nstore
, startp
, endp
- startp
);
3085 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3086 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3088 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3089 nstore
[endp
- startp
+ 1] = 0;
3092 nstore
[endp
- startp
] = 0;
3093 add_prefix (&exec_prefixes
, nstore
, 0,
3094 PREFIX_PRIORITY_LAST
, 0, NULL
);
3095 add_prefix (&include_prefixes
,
3096 concat (nstore
, "include", NULL
),
3097 0, PREFIX_PRIORITY_LAST
, 0, NULL
);
3100 endp
= startp
= endp
+ 1;
3107 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3108 if (temp
&& *cross_compile
== '0')
3110 const char *startp
, *endp
;
3111 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3113 startp
= endp
= temp
;
3116 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3118 strncpy (nstore
, startp
, endp
- startp
);
3120 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3121 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3123 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3124 nstore
[endp
- startp
+ 1] = 0;
3127 nstore
[endp
- startp
] = 0;
3128 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3129 PREFIX_PRIORITY_LAST
, 0, NULL
);
3132 endp
= startp
= endp
+ 1;
3139 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3140 GET_ENV_PATH_LIST (temp
, "LPATH");
3141 if (temp
&& *cross_compile
== '0')
3143 const char *startp
, *endp
;
3144 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3146 startp
= endp
= temp
;
3149 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3151 strncpy (nstore
, startp
, endp
- startp
);
3153 strcpy (nstore
, concat (".", dir_separator_str
, NULL
));
3154 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3156 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3157 nstore
[endp
- startp
+ 1] = 0;
3160 nstore
[endp
- startp
] = 0;
3161 add_prefix (&startfile_prefixes
, nstore
, NULL
,
3162 PREFIX_PRIORITY_LAST
, 0, NULL
);
3165 endp
= startp
= endp
+ 1;
3172 /* Convert new-style -- options to old-style. */
3173 translate_options (&argc
, &argv
);
3175 /* Do language-specific adjustment/addition of flags. */
3176 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3178 /* Scan argv twice. Here, the first time, just count how many switches
3179 there will be in their vector, and how many input files in theirs.
3180 Also parse any switches that determine the configuration name, such as -b.
3181 Here we also parse the switches that cc itself uses (e.g. -v). */
3183 for (i
= 1; i
< argc
; i
++)
3185 if (! strcmp (argv
[i
], "-dumpspecs"))
3187 struct spec_list
*sl
;
3189 for (sl
= specs
; sl
; sl
= sl
->next
)
3190 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3191 if (link_command_spec
)
3192 printf ("*link_command:\n%s\n\n", link_command_spec
);
3195 else if (! strcmp (argv
[i
], "-dumpversion"))
3197 printf ("%s\n", spec_version
);
3200 else if (! strcmp (argv
[i
], "-dumpmachine"))
3202 printf ("%s\n", spec_machine
);
3205 else if (strcmp (argv
[i
], "-fhelp") == 0)
3207 /* translate_options () has turned --help into -fhelp. */
3208 print_help_list
= 1;
3210 /* We will be passing a dummy file on to the sub-processes. */
3214 add_preprocessor_option ("--help", 6);
3215 add_assembler_option ("--help", 6);
3216 add_linker_option ("--help", 6);
3218 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3220 /* translate_options() has turned --target-help into -ftarget-help. */
3221 target_help_flag
= 1;
3223 /* We will be passing a dummy file on to the sub-processes. */
3227 add_preprocessor_option ("--target-help", 13);
3228 add_assembler_option ("--target-help", 13);
3229 add_linker_option ("--target-help", 13);
3231 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3233 pass_exit_codes
= 1;
3236 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3237 print_search_dirs
= 1;
3238 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3239 print_file_name
= "libgcc.a";
3240 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3241 print_file_name
= argv
[i
] + 17;
3242 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3243 print_prog_name
= argv
[i
] + 17;
3244 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3245 print_multi_lib
= 1;
3246 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3247 print_multi_directory
= 1;
3248 else if (! strncmp (argv
[i
], "-Wa,", 4))
3251 /* Pass the rest of this option to the assembler. */
3253 /* Split the argument at commas. */
3255 for (j
= 4; argv
[i
][j
]; j
++)
3256 if (argv
[i
][j
] == ',')
3258 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3262 /* Record the part after the last comma. */
3263 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3265 else if (! strncmp (argv
[i
], "-Wp,", 4))
3268 /* Pass the rest of this option to the preprocessor. */
3270 /* Split the argument at commas. */
3272 for (j
= 4; argv
[i
][j
]; j
++)
3273 if (argv
[i
][j
] == ',')
3275 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3279 /* Record the part after the last comma. */
3280 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3282 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3283 /* The +e options to the C++ front-end. */
3285 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3288 /* Split the argument at commas. */
3289 for (j
= 3; argv
[i
][j
]; j
++)
3290 n_infiles
+= (argv
[i
][j
] == ',');
3292 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3295 fatal ("argument to `-Xlinker' is missing");
3300 else if (strcmp (argv
[i
], "-l") == 0)
3303 fatal ("argument to `-l' is missing");
3308 else if (strncmp (argv
[i
], "-l", 2) == 0)
3310 else if (strcmp (argv
[i
], "-save-temps") == 0)
3312 save_temps_flag
= 1;
3315 else if (strcmp (argv
[i
], "-specs") == 0)
3317 struct user_specs
*user
= (struct user_specs
*)
3318 xmalloc (sizeof (struct user_specs
));
3320 fatal ("argument to `-specs' is missing");
3322 user
->next
= (struct user_specs
*) 0;
3323 user
->filename
= argv
[i
];
3324 if (user_specs_tail
)
3325 user_specs_tail
->next
= user
;
3327 user_specs_head
= user
;
3328 user_specs_tail
= user
;
3330 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3332 struct user_specs
*user
= (struct user_specs
*)
3333 xmalloc (sizeof (struct user_specs
));
3334 if (strlen (argv
[i
]) == 7)
3335 fatal ("argument to `-specs=' is missing");
3337 user
->next
= (struct user_specs
*) 0;
3338 user
->filename
= argv
[i
] + 7;
3339 if (user_specs_tail
)
3340 user_specs_tail
->next
= user
;
3342 user_specs_head
= user
;
3343 user_specs_tail
= user
;
3345 else if (strcmp (argv
[i
], "-time") == 0)
3347 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3349 register const char *p
= &argv
[i
][1];
3350 register int c
= *p
;
3356 if (p
[1] == 0 && i
+ 1 == argc
)
3357 fatal ("argument to `-b' is missing");
3359 spec_machine
= argv
[++i
];
3361 spec_machine
= p
+ 1;
3363 warn_std_ptr
= &warn_std
;
3369 if (p
[1] == 0 && i
+ 1 == argc
)
3370 fatal ("argument to `-B' is missing");
3376 /* As a kludge, if the arg is "[foo/]stageN/", just
3377 add "[foo/]include" to the include prefix. */
3378 int len
= strlen (value
);
3381 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3382 && strncmp (value
+ len
- 7, "stage", 5) == 0
3383 && ISDIGIT (value
[len
- 2])
3384 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3387 add_prefix (&include_prefixes
, "include", NULL
,
3388 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3391 char *string
= xmalloc (len
+ 1);
3392 strncpy (string
, value
, len
-7);
3393 strcpy (string
+len
-7, "include");
3394 add_prefix (&include_prefixes
, string
, NULL
,
3395 PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3399 add_prefix (&exec_prefixes
, value
, NULL
,
3400 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3401 add_prefix (&startfile_prefixes
, value
, NULL
,
3402 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3403 add_prefix (&include_prefixes
, concat (value
, "include", NULL
),
3404 NULL
, PREFIX_PRIORITY_B_OPT
, 0, NULL
);
3409 case 'v': /* Print our subcommands and print versions. */
3411 /* If they do anything other than exactly `-v', don't set
3412 verbose_flag; rather, continue on to give the error. */
3420 if (p
[1] == 0 && i
+ 1 == argc
)
3421 fatal ("argument to `-V' is missing");
3423 spec_version
= argv
[++i
];
3425 spec_version
= p
+ 1;
3426 compiler_version
= spec_version
;
3427 warn_std_ptr
= &warn_std
;
3429 /* Validate the version number. Use the same checks
3430 done when inserting it into a spec.
3432 The format of the version string is
3433 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3435 const char *v
= compiler_version
;
3437 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3438 while (! ISDIGIT (*v
))
3441 if (v
> compiler_version
&& v
[-1] != '-')
3442 fatal ("invalid version number format");
3444 /* Set V after the first period. */
3445 while (ISDIGIT (*v
))
3449 fatal ("invalid version number format");
3452 while (ISDIGIT (*v
))
3455 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3456 fatal ("invalid version number format");
3472 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3477 /* Forward scan, just in case -S or -c is specified
3484 if (argv
[j
][0] == '-')
3486 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3492 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3493 j
+= skip
- (argv
[j
][2] != 0);
3494 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3501 #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
3503 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3505 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3512 #ifdef MODIFY_TARGET_NAME
3513 is_modify_target_name
= 0;
3516 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3517 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3520 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3521 + strlen (spec_machine
));
3524 int made_addition
= 0;
3526 is_modify_target_name
= 1;
3527 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3529 if (modify_target
[j
].add_del
== DELETE
3530 && (! strncmp (q
, modify_target
[j
].str
,
3531 strlen (modify_target
[j
].str
))))
3532 p
+= strlen (modify_target
[j
].str
);
3533 else if (modify_target
[j
].add_del
== ADD
3534 && ! made_addition
&& *p
== '-')
3536 for (r
= modify_target
[j
].str
; *r
!= 0; )
3544 spec_machine
= new_name
;
3547 if (is_modify_target_name
)
3553 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3554 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3555 else if (WORD_SWITCH_TAKES_ARG (p
))
3556 i
+= WORD_SWITCH_TAKES_ARG (p
);
3566 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3567 fatal ("cannot specify -o with -c or -S and multiple compilations");
3569 /* Set up the search paths before we go looking for config files. */
3571 /* These come before the md prefixes so that we will find gcc's subcommands
3572 (such as cpp) rather than those of the host system. */
3573 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3574 as well as trying the machine and the version. */
3576 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3577 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3578 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3579 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3580 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3581 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3584 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3585 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3586 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3587 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3589 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3590 dir_separator_str
, NULL
);
3592 /* If tooldir is relative, base it on exec_prefixes. A relative
3593 tooldir lets us move the installed tree as a unit.
3595 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3596 directories, so that we can search both the user specified directory
3597 and the standard place. */
3599 if (!IS_ABSOLUTE_PATHNAME (tooldir_prefix
))
3601 if (gcc_exec_prefix
)
3603 char *gcc_exec_tooldir_prefix
3604 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3605 spec_version
, dir_separator_str
, tooldir_prefix
, NULL
);
3607 add_prefix (&exec_prefixes
,
3608 concat (gcc_exec_tooldir_prefix
, "bin",
3609 dir_separator_str
, NULL
),
3610 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3611 add_prefix (&startfile_prefixes
,
3612 concat (gcc_exec_tooldir_prefix
, "lib",
3613 dir_separator_str
, NULL
),
3614 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
3617 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3618 dir_separator_str
, spec_version
,
3619 dir_separator_str
, tooldir_prefix
, NULL
);
3622 add_prefix (&exec_prefixes
,
3623 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL
),
3624 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3625 add_prefix (&startfile_prefixes
,
3626 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL
),
3627 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
3629 /* More prefixes are enabled in main, after we read the specs file
3630 and determine whether this is cross-compilation or not. */
3632 /* Then create the space for the vectors and scan again. */
3634 switches
= ((struct switchstr
*)
3635 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3636 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3639 last_language_n_infiles
= -1;
3641 /* This, time, copy the text of each switch and store a pointer
3642 to the copy in the vector of switches.
3643 Store all the infiles in their vector. */
3645 for (i
= 1; i
< argc
; i
++)
3647 /* Just skip the switches that were handled by the preceding loop. */
3648 #ifdef MODIFY_TARGET_NAME
3649 is_modify_target_name
= 0;
3651 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3652 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3653 is_modify_target_name
= 1;
3655 if (is_modify_target_name
)
3659 if (! strncmp (argv
[i
], "-Wa,", 4))
3661 else if (! strncmp (argv
[i
], "-Wp,", 4))
3663 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3665 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3667 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3669 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3671 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3673 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3675 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3677 else if (strcmp (argv
[i
], "-ftarget-help") == 0)
3679 /* Create a dummy input file, so that we can pass --target-help on to
3680 the various sub-processes. */
3681 infiles
[n_infiles
].language
= "c";
3682 infiles
[n_infiles
++].name
= "target-dummy";
3684 /* Preserve the --target-help switch so that it can be caught by
3685 the cc1 spec string. */
3686 switches
[n_switches
].part1
= "--target-help";
3687 switches
[n_switches
].args
= 0;
3688 switches
[n_switches
].live_cond
= SWITCH_OK
;
3689 switches
[n_switches
].validated
= 0;
3693 else if (strcmp (argv
[i
], "-fhelp") == 0)
3697 /* Create a dummy input file, so that we can pass --help on to
3698 the various sub-processes. */
3699 infiles
[n_infiles
].language
= "c";
3700 infiles
[n_infiles
++].name
= "help-dummy";
3702 /* Preserve the --help switch so that it can be caught by the
3704 switches
[n_switches
].part1
= "--help";
3705 switches
[n_switches
].args
= 0;
3706 switches
[n_switches
].live_cond
= SWITCH_OK
;
3707 switches
[n_switches
].validated
= 0;
3712 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3714 /* Compensate for the +e options to the C++ front-end;
3715 they're there simply for cfront call-compatibility. We do
3716 some magic in default_compilers to pass them down properly.
3717 Note we deliberately start at the `+' here, to avoid passing
3718 -e0 or -e1 down into the linker. */
3719 switches
[n_switches
].part1
= &argv
[i
][0];
3720 switches
[n_switches
].args
= 0;
3721 switches
[n_switches
].live_cond
= SWITCH_OK
;
3722 switches
[n_switches
].validated
= 0;
3725 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3728 /* Split the argument at commas. */
3730 for (j
= 4; argv
[i
][j
]; j
++)
3731 if (argv
[i
][j
] == ',')
3733 infiles
[n_infiles
].language
= "*";
3734 infiles
[n_infiles
++].name
3735 = save_string (argv
[i
] + prev
, j
- prev
);
3738 /* Record the part after the last comma. */
3739 infiles
[n_infiles
].language
= "*";
3740 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3742 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3744 infiles
[n_infiles
].language
= "*";
3745 infiles
[n_infiles
++].name
= argv
[++i
];
3747 else if (strcmp (argv
[i
], "-l") == 0)
3748 { /* POSIX allows separation of -l and the lib arg;
3749 canonicalize by concatenating -l with its arg */
3750 infiles
[n_infiles
].language
= "*";
3751 infiles
[n_infiles
++].name
= concat ("-l", argv
[++i
], NULL
);
3753 else if (strncmp (argv
[i
], "-l", 2) == 0)
3755 infiles
[n_infiles
].language
= "*";
3756 infiles
[n_infiles
++].name
= argv
[i
];
3758 else if (strcmp (argv
[i
], "-specs") == 0)
3760 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3762 else if (strcmp (argv
[i
], "-time") == 0)
3764 else if ((save_temps_flag
|| report_times
)
3765 && strcmp (argv
[i
], "-pipe") == 0)
3767 /* -save-temps overrides -pipe, so that temp files are produced */
3768 if (save_temps_flag
)
3769 error ("Warning: -pipe ignored because -save-temps specified");
3770 /* -time overrides -pipe because we can't get correct stats when
3771 multiple children are running at once. */
3772 else if (report_times
)
3773 error ("Warning: -pipe ignored because -time specified");
3775 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3777 const char *p
= &argv
[i
][1];
3782 if (p
[1] == 0 && i
+ 1 == argc
)
3783 fatal ("argument to `-x' is missing");
3785 spec_lang
= argv
[++i
];
3788 if (! strcmp (spec_lang
, "none"))
3789 /* Suppress the warning if -xnone comes after the last input
3790 file, because alternate command interfaces like g++ might
3791 find it useful to place -xnone after each input file. */
3794 last_language_n_infiles
= n_infiles
;
3797 switches
[n_switches
].part1
= p
;
3798 /* Deal with option arguments in separate argv elements. */
3799 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3800 || WORD_SWITCH_TAKES_ARG (p
))
3803 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3807 /* Count only the option arguments in separate argv elements. */
3808 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3810 if (i
+ n_args
>= argc
)
3811 fatal ("argument to `-%s' is missing", p
);
3812 switches
[n_switches
].args
3813 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3815 switches
[n_switches
].args
[j
++] = argv
[++i
];
3816 /* Null-terminate the vector. */
3817 switches
[n_switches
].args
[j
] = 0;
3819 else if (strchr (switches_need_spaces
, c
))
3821 /* On some systems, ld cannot handle some options without
3822 a space. So split the option from its argument. */
3823 char *part1
= (char *) xmalloc (2);
3828 switches
[n_switches
].part1
= part1
;
3829 switches
[n_switches
].args
3830 = (const char **) xmalloc (2 * sizeof (const char *));
3831 switches
[n_switches
].args
[0] = tmp
= xmalloc (strlen (p
));
3832 strcpy (tmp
, &p
[1]);
3833 switches
[n_switches
].args
[1] = 0;
3836 switches
[n_switches
].args
= 0;
3838 switches
[n_switches
].live_cond
= SWITCH_OK
;
3839 switches
[n_switches
].validated
= 0;
3840 switches
[n_switches
].ordering
= 0;
3841 /* These are always valid, since gcc.c itself understands it. */
3842 if (!strcmp (p
, "save-temps")
3843 || !strcmp (p
, "static-libgcc")
3844 || !strcmp (p
, "shared-libgcc"))
3845 switches
[n_switches
].validated
= 1;
3848 char ch
= switches
[n_switches
].part1
[0];
3849 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3850 switches
[n_switches
].validated
= 1;
3856 #ifdef HAVE_TARGET_OBJECT_SUFFIX
3857 argv
[i
] = convert_filename (argv
[i
], 0);
3860 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], F_OK
) < 0)
3862 perror_with_name (argv
[i
]);
3867 infiles
[n_infiles
].language
= spec_lang
;
3868 infiles
[n_infiles
++].name
= argv
[i
];
3873 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3874 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3876 switches
[n_switches
].part1
= 0;
3877 infiles
[n_infiles
].name
= 0;
3880 /* Process a spec string, accumulating and running commands. */
3882 /* These variables describe the input file name.
3883 input_file_number is the index on outfiles of this file,
3884 so that the output file name can be stored for later use by %o.
3885 input_basename is the start of the part of the input file
3886 sans all directory names, and basename_length is the number
3887 of characters starting there excluding the suffix .c or whatever. */
3889 const char *input_filename
;
3890 static int input_file_number
;
3891 size_t input_filename_length
;
3892 static int basename_length
;
3893 static int suffixed_basename_length
;
3894 static const char *input_basename
;
3895 static const char *input_suffix
;
3897 /* The compiler used to process the current input file. */
3898 static struct compiler
*input_file_compiler
;
3900 /* These are variables used within do_spec and do_spec_1. */
3902 /* Nonzero if an arg has been started and not yet terminated
3903 (with space, tab or newline). */
3904 static int arg_going
;
3906 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3907 is a temporary file name. */
3908 static int delete_this_arg
;
3910 /* Nonzero means %w has been seen; the next arg to be terminated
3911 is the output file name of this compilation. */
3912 static int this_is_output_file
;
3914 /* Nonzero means %s has been seen; the next arg to be terminated
3915 is the name of a library file and we should try the standard
3916 search dirs for it. */
3917 static int this_is_library_file
;
3919 /* Nonzero means that the input of this command is coming from a pipe. */
3920 static int input_from_pipe
;
3922 /* Nonnull means substitute this for any suffix when outputting a switches
3924 static const char *suffix_subst
;
3926 /* Process the spec SPEC and run the commands specified therein.
3927 Returns 0 if the spec is successfully processed; -1 if failed. */
3937 delete_this_arg
= 0;
3938 this_is_output_file
= 0;
3939 this_is_library_file
= 0;
3940 input_from_pipe
= 0;
3941 suffix_subst
= NULL
;
3943 value
= do_spec_1 (spec
, 0, NULL
);
3945 /* Force out any unfinished command.
3946 If -pipe, this forces out the last command if it ended in `|'. */
3949 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3952 if (argbuf_index
> 0)
3959 /* Process the sub-spec SPEC as a portion of a larger spec.
3960 This is like processing a whole spec except that we do
3961 not initialize at the beginning and we do not supply a
3962 newline by default at the end.
3963 INSWITCH nonzero means don't process %-sequences in SPEC;
3964 in this case, % is treated as an ordinary character.
3965 This is used while substituting switches.
3966 INSWITCH nonzero also causes SPC not to terminate an argument.
3968 Value is zero unless a line was finished
3969 and the command on that line reported an error. */
3972 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3975 const char *soft_matched_part
;
3977 register const char *p
= spec
;
3984 /* If substituting a switch, treat all chars like letters.
3985 Otherwise, NL, SPC, TAB and % are special. */
3986 switch (inswitch
? 'a' : c
)
3989 /* End of line: finish any pending argument,
3990 then run the pending command if one has been started. */
3993 obstack_1grow (&obstack
, 0);
3994 string
= obstack_finish (&obstack
);
3995 if (this_is_library_file
)
3996 string
= find_file (string
);
3997 store_arg (string
, delete_this_arg
, this_is_output_file
);
3998 if (this_is_output_file
)
3999 outfiles
[input_file_number
] = string
;
4003 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
4005 for (i
= 0; i
< n_switches
; i
++)
4006 if (!strcmp (switches
[i
].part1
, "pipe"))
4009 /* A `|' before the newline means use a pipe here,
4010 but only if -pipe was specified.
4011 Otherwise, execute now and don't pass the `|' as an arg. */
4014 input_from_pipe
= 1;
4015 switches
[i
].validated
= 1;
4022 if (argbuf_index
> 0)
4028 /* Reinitialize for a new command, and for a new argument. */
4031 delete_this_arg
= 0;
4032 this_is_output_file
= 0;
4033 this_is_library_file
= 0;
4034 input_from_pipe
= 0;
4038 /* End any pending argument. */
4041 obstack_1grow (&obstack
, 0);
4042 string
= obstack_finish (&obstack
);
4043 if (this_is_library_file
)
4044 string
= find_file (string
);
4045 store_arg (string
, delete_this_arg
, this_is_output_file
);
4046 if (this_is_output_file
)
4047 outfiles
[input_file_number
] = string
;
4051 obstack_1grow (&obstack
, c
);
4057 /* Space or tab ends an argument if one is pending. */
4060 obstack_1grow (&obstack
, 0);
4061 string
= obstack_finish (&obstack
);
4062 if (this_is_library_file
)
4063 string
= find_file (string
);
4064 store_arg (string
, delete_this_arg
, this_is_output_file
);
4065 if (this_is_output_file
)
4066 outfiles
[input_file_number
] = string
;
4068 /* Reinitialize for a new argument. */
4070 delete_this_arg
= 0;
4071 this_is_output_file
= 0;
4072 this_is_library_file
= 0;
4079 fatal ("Invalid specification! Bug in cc.");
4082 obstack_grow (&obstack
, input_basename
, basename_length
);
4087 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
4092 delete_this_arg
= 2;
4095 /* Dump out the directories specified with LIBRARY_PATH,
4096 followed by the absolute directories
4097 that we search for startfiles. */
4100 struct prefix_list
*pl
= startfile_prefixes
.plist
;
4101 size_t bufsize
= 100;
4102 char *buffer
= (char *) xmalloc (bufsize
);
4105 for (; pl
; pl
= pl
->next
)
4107 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
4108 /* Used on systems which record the specified -L dirs
4109 and use them to search for dynamic linking. */
4110 /* Relative directories always come from -B,
4111 and it is better not to use them for searching
4112 at run time. In particular, stage1 loses. */
4113 if (!IS_ABSOLUTE_PATHNAME (pl
->prefix
))
4116 /* Try subdirectory if there is one. */
4117 if (multilib_dir
!= NULL
)
4121 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
4123 bufsize
= (strlen (pl
->prefix
)
4124 + strlen (machine_suffix
)) * 2 + 1;
4125 buffer
= (char *) xrealloc (buffer
, bufsize
);
4126 strcpy (buffer
, pl
->prefix
);
4127 strcat (buffer
, machine_suffix
);
4128 if (is_directory (buffer
, multilib_dir
, 1))
4130 do_spec_1 ("-L", 0, NULL
);
4131 #ifdef SPACE_AFTER_L_OPTION
4132 do_spec_1 (" ", 0, NULL
);
4134 do_spec_1 (buffer
, 1, NULL
);
4135 do_spec_1 (multilib_dir
, 1, NULL
);
4136 /* Make this a separate argument. */
4137 do_spec_1 (" ", 0, NULL
);
4140 if (!pl
->require_machine_suffix
)
4142 if (is_directory (pl
->prefix
, multilib_dir
, 1))
4144 do_spec_1 ("-L", 0, NULL
);
4145 #ifdef SPACE_AFTER_L_OPTION
4146 do_spec_1 (" ", 0, NULL
);
4148 do_spec_1 (pl
->prefix
, 1, NULL
);
4149 do_spec_1 (multilib_dir
, 1, NULL
);
4150 /* Make this a separate argument. */
4151 do_spec_1 (" ", 0, NULL
);
4157 if (is_directory (pl
->prefix
, machine_suffix
, 1))
4159 do_spec_1 ("-L", 0, NULL
);
4160 #ifdef SPACE_AFTER_L_OPTION
4161 do_spec_1 (" ", 0, NULL
);
4163 do_spec_1 (pl
->prefix
, 1, NULL
);
4164 /* Remove slash from machine_suffix. */
4165 if (strlen (machine_suffix
) >= bufsize
)
4166 bufsize
= strlen (machine_suffix
) * 2 + 1;
4167 buffer
= (char *) xrealloc (buffer
, bufsize
);
4168 strcpy (buffer
, machine_suffix
);
4169 idx
= strlen (buffer
);
4170 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4171 buffer
[idx
- 1] = 0;
4172 do_spec_1 (buffer
, 1, NULL
);
4173 /* Make this a separate argument. */
4174 do_spec_1 (" ", 0, NULL
);
4177 if (!pl
->require_machine_suffix
)
4179 if (is_directory (pl
->prefix
, "", 1))
4181 do_spec_1 ("-L", 0, NULL
);
4182 #ifdef SPACE_AFTER_L_OPTION
4183 do_spec_1 (" ", 0, NULL
);
4185 /* Remove slash from pl->prefix. */
4186 if (strlen (pl
->prefix
) >= bufsize
)
4187 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4188 buffer
= (char *) xrealloc (buffer
, bufsize
);
4189 strcpy (buffer
, pl
->prefix
);
4190 idx
= strlen (buffer
);
4191 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4192 buffer
[idx
- 1] = 0;
4193 do_spec_1 (buffer
, 1, NULL
);
4194 /* Make this a separate argument. */
4195 do_spec_1 (" ", 0, NULL
);
4204 /* %efoo means report an error with `foo' as error message
4205 and don't execute any more commands for this file. */
4209 while (*p
!= 0 && *p
!= '\n')
4211 buf
= (char *) alloca (p
- q
+ 1);
4212 strncpy (buf
, q
, p
- q
);
4219 /* %nfoo means report an notice with `foo' on stderr. */
4223 while (*p
!= 0 && *p
!= '\n')
4225 buf
= (char *) alloca (p
- q
+ 1);
4226 strncpy (buf
, q
, p
- q
);
4228 notice ("%s\n", buf
);
4238 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4239 and it is not a directory, and it is writable, use it.
4240 Otherwise, fall through and treat this like any other
4243 if ((!save_temps_flag
)
4244 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4245 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4247 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4248 strlen (HOST_BIT_BUCKET
));
4249 delete_this_arg
= 0;
4257 if (save_temps_flag
)
4259 obstack_grow (&obstack
, input_basename
, basename_length
);
4260 delete_this_arg
= 0;
4264 struct temp_name
*t
;
4266 const char *suffix
= p
;
4267 char *saved_suffix
= NULL
;
4269 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4271 suffix_length
= p
- suffix
;
4272 if (p
[0] == '%' && p
[1] == 'O')
4275 /* We don't support extra suffix characters after %O. */
4276 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4278 if (suffix_length
== 0)
4279 suffix
= TARGET_OBJECT_SUFFIX
;
4283 = (char *) xmalloc (suffix_length
4284 + strlen (TARGET_OBJECT_SUFFIX
));
4285 strncpy (saved_suffix
, suffix
, suffix_length
);
4286 strcpy (saved_suffix
+ suffix_length
,
4287 TARGET_OBJECT_SUFFIX
);
4289 suffix_length
+= strlen (TARGET_OBJECT_SUFFIX
);
4292 /* See if we already have an association of %g/%u/%U and
4294 for (t
= temp_names
; t
; t
= t
->next
)
4295 if (t
->length
== suffix_length
4296 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4297 && t
->unique
== (c
!= 'g'))
4300 /* Make a new association if needed. %u and %j
4302 if (t
== 0 || c
== 'u' || c
== 'j')
4306 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4307 t
->next
= temp_names
;
4310 t
->length
= suffix_length
;
4313 t
->suffix
= saved_suffix
;
4314 saved_suffix
= NULL
;
4317 t
->suffix
= save_string (suffix
, suffix_length
);
4318 t
->unique
= (c
!= 'g');
4319 temp_filename
= make_temp_file (t
->suffix
);
4320 temp_filename_length
= strlen (temp_filename
);
4321 t
->filename
= temp_filename
;
4322 t
->filename_length
= temp_filename_length
;
4326 free (saved_suffix
);
4328 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4329 delete_this_arg
= 1;
4335 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4341 struct prefix_list
*pl
= include_prefixes
.plist
;
4343 if (gcc_exec_prefix
)
4345 do_spec_1 ("-iprefix", 1, NULL
);
4346 /* Make this a separate argument. */
4347 do_spec_1 (" ", 0, NULL
);
4348 do_spec_1 (gcc_exec_prefix
, 1, NULL
);
4349 do_spec_1 (" ", 0, NULL
);
4352 for (; pl
; pl
= pl
->next
)
4354 do_spec_1 ("-isystem", 1, NULL
);
4355 /* Make this a separate argument. */
4356 do_spec_1 (" ", 0, NULL
);
4357 do_spec_1 (pl
->prefix
, 1, NULL
);
4358 do_spec_1 (" ", 0, NULL
);
4365 int max
= n_infiles
;
4366 max
+= lang_specific_extra_outfiles
;
4368 for (i
= 0; i
< max
; i
++)
4370 store_arg (outfiles
[i
], 0, 0);
4375 obstack_grow (&obstack
, TARGET_OBJECT_SUFFIX
, strlen (TARGET_OBJECT_SUFFIX
));
4380 this_is_library_file
= 1;
4384 this_is_output_file
= 1;
4389 int cur_index
= argbuf_index
;
4390 /* Handle the {...} following the %W. */
4393 p
= handle_braces (p
+ 1);
4396 /* If any args were output, mark the last one for deletion
4398 if (argbuf_index
!= cur_index
)
4399 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4403 /* %x{OPTION} records OPTION for %X to output. */
4409 /* Skip past the option value and make a copy. */
4414 string
= save_string (p1
+ 1, p
- p1
- 2);
4416 /* See if we already recorded this option. */
4417 for (i
= 0; i
< n_linker_options
; i
++)
4418 if (! strcmp (string
, linker_options
[i
]))
4424 /* This option is new; add it. */
4425 add_linker_option (string
, strlen (string
));
4429 /* Dump out the options accumulated previously using %x. */
4431 for (i
= 0; i
< n_linker_options
; i
++)
4433 do_spec_1 (linker_options
[i
], 1, NULL
);
4434 /* Make each accumulated option a separate argument. */
4435 do_spec_1 (" ", 0, NULL
);
4439 /* Dump out the options accumulated previously using -Wa,. */
4441 for (i
= 0; i
< n_assembler_options
; i
++)
4443 do_spec_1 (assembler_options
[i
], 1, NULL
);
4444 /* Make each accumulated option a separate argument. */
4445 do_spec_1 (" ", 0, NULL
);
4449 /* Dump out the options accumulated previously using -Wp,. */
4451 for (i
= 0; i
< n_preprocessor_options
; i
++)
4453 do_spec_1 (preprocessor_options
[i
], 1, NULL
);
4454 /* Make each accumulated option a separate argument. */
4455 do_spec_1 (" ", 0, NULL
);
4459 /* Here are digits and numbers that just process
4460 a certain constant string as a spec. */
4463 value
= do_spec_1 (cc1_spec
, 0, NULL
);
4469 value
= do_spec_1 (cc1plus_spec
, 0, NULL
);
4475 value
= do_spec_1 (asm_spec
, 0, NULL
);
4481 value
= do_spec_1 (asm_final_spec
, 0, NULL
);
4487 value
= do_spec_1 (signed_char_spec
, 0, NULL
);
4495 = (input_file_compiler
->cpp_spec
4496 ? input_file_compiler
->cpp_spec
4498 value
= do_spec_1 (spec
, 0, NULL
);
4505 value
= do_spec_1 (endfile_spec
, 0, NULL
);
4511 value
= do_spec_1 (link_spec
, 0, NULL
);
4517 value
= do_spec_1 (lib_spec
, 0, NULL
);
4523 value
= do_spec_1 (libgcc_spec
, 0, NULL
);
4529 if (multilib_dir
&& strcmp (multilib_dir
, ".") != 0)
4535 len
= strlen (multilib_dir
);
4536 obstack_blank (&obstack
, len
+ 1);
4537 p
= obstack_next_free (&obstack
) - (len
+ 1);
4540 for (q
= multilib_dir
; *q
; ++q
, ++p
)
4541 *p
= (IS_DIR_SEPARATOR (*q
) ? '_' : *q
);
4547 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4551 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4555 if (! strncmp (y
, "-D", 2))
4556 /* Copy the whole option. */
4557 while (*y
&& *y
!= ' ' && *y
!= '\t')
4559 else if (*y
== ' ' || *y
== '\t')
4560 /* Copy whitespace to the result. */
4562 /* Don't copy other options. */
4569 value
= do_spec_1 (buf
, 0, NULL
);
4577 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4581 /* Copy all of CPP_PREDEFINES into BUF,
4582 but force them all into the reserved name space if they
4583 aren't already there. The reserved name space is all
4584 identifiers beginning with two underscores or with one
4585 underscore and a capital letter. We do the forcing by
4586 adding up to two underscores to the beginning and end
4587 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4592 if (! strncmp (y
, "-D", 2))
4601 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4603 /* Stick __ at front of macro name. */
4607 /* Arrange to stick __ at the end as well. */
4611 /* Copy the macro name. */
4612 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4625 /* Copy the value given, if any. */
4626 while (*y
&& *y
!= ' ' && *y
!= '\t')
4629 else if (*y
== ' ' || *y
== '\t')
4630 /* Copy whitespace to the result. */
4632 /* Don't copy -A options */
4638 /* Copy all of CPP_PREDEFINES into BUF,
4639 but put __ after every -D. */
4643 if (! strncmp (y
, "-D", 2))
4649 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4651 /* Stick -D__ at front of macro name. */
4658 /* Copy the macro name. */
4659 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4662 /* Copy the value given, if any. */
4663 while (*y
&& *y
!= ' ' && *y
!= '\t')
4668 /* Do not copy this macro - we have just done it before */
4669 while (*y
&& *y
!= ' ' && *y
!= '\t')
4673 else if (*y
== ' ' || *y
== '\t')
4674 /* Copy whitespace to the result. */
4676 /* Don't copy -A options. */
4682 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4686 if (! strncmp (y
, "-A", 2))
4687 /* Copy the whole option. */
4688 while (*y
&& *y
!= ' ' && *y
!= '\t')
4690 else if (*y
== ' ' || *y
== '\t')
4691 /* Copy whitespace to the result. */
4693 /* Don't copy other options. */
4700 value
= do_spec_1 (buf
, 0, NULL
);
4707 value
= do_spec_1 (startfile_spec
, 0, NULL
);
4712 /* Here we define characters other than letters and digits. */
4715 p
= handle_braces (p
);
4721 obstack_1grow (&obstack
, '%');
4728 while (p
[len
] && p
[len
] != ' ' && p
[len
] != '%')
4730 suffix_subst
= save_string (p
- 1, len
+ 1);
4736 if (soft_matched_part
)
4738 do_spec_1 (soft_matched_part
, 1, NULL
);
4739 do_spec_1 (" ", 0, NULL
);
4742 /* Catch the case where a spec string contains something like
4743 '%{foo:%*}'. ie there is no * in the pattern on the left
4744 hand side of the :. */
4745 error ("Spec failure: '%%*' has not been initialised by pattern match");
4748 /* Process a string found as the value of a spec given by name.
4749 This feature allows individual machine descriptions
4750 to add and use their own specs.
4751 %[...] modifies -D options the way %P does;
4752 %(...) uses the spec unmodified. */
4754 error ("Warning: use of obsolete %%[ operator in specs");
4757 const char *name
= p
;
4758 struct spec_list
*sl
;
4761 /* The string after the S/P is the name of a spec that is to be
4763 while (*p
&& *p
!= ')' && *p
!= ']')
4766 /* See if it's in the list. */
4767 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4768 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4770 name
= *(sl
->ptr_spec
);
4772 notice ("Processing spec %c%s%c, which is '%s'\n",
4773 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4782 value
= do_spec_1 (name
, 0, NULL
);
4788 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4790 const char *y
= name
;
4793 /* Copy all of NAME into BUF, but put __ after
4794 every -D and at the end of each arg. */
4797 if (! strncmp (y
, "-D", 2))
4808 && (*y
== ' ' || *y
== '\t' || *y
== '='
4809 || *y
== '}' || *y
== 0))
4822 value
= do_spec_1 (buf
, 0, NULL
);
4828 /* Discard the closing paren or bracket. */
4836 int c1
= *p
++; /* Select first or second version number. */
4837 const char *v
= compiler_version
;
4839 static const char zeroc
= '0';
4841 /* The format of the version string is
4842 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4844 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4845 while (! ISDIGIT (*v
))
4847 if (v
> compiler_version
&& v
[-1] != '-')
4850 /* If desired, advance to second version number. */
4853 /* Set V after the first period. */
4854 while (ISDIGIT (*v
))
4861 /* If desired, advance to third version number.
4862 But don't complain if it's not present */
4865 /* Set V after the second period. */
4866 while (ISDIGIT (*v
))
4868 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4874 /* Set Q at the next period or at the end. */
4876 while (ISDIGIT (*q
))
4878 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4882 /* Put that part into the command. */
4883 obstack_grow (&obstack
, v
, q
- v
);
4885 /* Default to "0" */
4886 obstack_grow (&obstack
, &zeroc
, 1);
4892 if (input_from_pipe
)
4893 do_spec_1 ("-", 0, NULL
);
4897 error ("Spec failure: Unrecognised spec option '%c'", c
);
4903 /* Backslash: treat next character as ordinary. */
4908 /* Ordinary character: put it into the current argument. */
4909 obstack_1grow (&obstack
, c
);
4913 /* End of string. */
4917 /* Return 0 if we call do_spec_1 and that returns -1. */
4921 register const char *p
;
4923 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4925 int true_once
= 0; /* If, in %{a|b:d}, at least one of a,b was seen. */
4928 int include_blanks
= 1;
4929 int elide_switch
= 0;
4934 /* A '^' after the open-brace means to not give blanks before args. */
4941 /* A `|' after the open-brace means,
4942 if the test fails, output a single minus sign rather than nothing.
4943 This is used in %{|!pipe:...}. */
4950 /* A `<' after the open-brace means that the switch should be
4951 removed from the command-line. */
4957 negate
= suffix
= 0;
4960 /* A `!' after the open-brace negates the condition:
4961 succeed if the specified switch is not present. */
4965 /* A `.' after the open-brace means test against the current suffix. */
4974 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
4976 /* It doesn't make sense to mix elision with other flags. We
4977 could fatal() here, but the standard seems to be to abort. */
4983 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
4986 if (*p
== '|' && (pipe_p
|| ordered
))
4991 if (*p
!= '}' && *p
!= '&')
4993 register int count
= 1;
4994 register const char *q
= p
;
5013 body
= p
, endbody
= p
+ 1;
5018 int found
= (input_suffix
!= 0
5019 && (long) strlen (input_suffix
) == (long) (p
- filter
)
5020 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
5026 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL
) < 0)
5029 else if (p
[-1] == '*' && (p
[0] == '}' || p
[0] == '&'))
5031 /* Substitute all matching switches as separate args. */
5034 for (i
= 0; i
< n_switches
; i
++)
5035 if (!strncmp (switches
[i
].part1
, filter
, p
- 1 - filter
)
5036 && check_live_switch (i
, p
- 1 - filter
))
5040 switches
[i
].live_cond
= SWITCH_IGNORE
;
5041 switches
[i
].validated
= 1;
5044 ordered
= 1, switches
[i
].ordering
= 1;
5049 /* Test for presence of the specified switch. */
5053 /* If name specified ends in *, as in {x*:...},
5054 check for %* and handle that case. */
5055 if (p
[-1] == '*' && !negate
)
5058 const char *r
= body
;
5060 /* First see whether we have %*. */
5064 if (*r
== '%' && r
[1] == '*')
5068 /* If we do, handle that case. */
5071 /* Substitute all matching switches as separate args.
5072 But do this by substituting for %*
5073 in the text that follows the colon. */
5075 unsigned hard_match_len
= p
- filter
- 1;
5076 char *string
= save_string (body
, endbody
- body
- 1);
5078 for (i
= 0; i
< n_switches
; i
++)
5079 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5080 && check_live_switch (i
, -1))
5082 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
5083 /* Pass any arguments this switch has. */
5084 give_switch (i
, 1, 1);
5085 suffix_subst
= NULL
;
5088 /* We didn't match. Try again. */
5095 /* If name specified ends in *, as in {x*:...},
5096 check for presence of any switch name starting with x. */
5099 for (i
= 0; i
< n_switches
; i
++)
5101 unsigned hard_match_len
= p
- filter
- 1;
5103 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
5104 && check_live_switch (i
, hard_match_len
))
5111 /* Otherwise, check for presence of exact name specified. */
5114 for (i
= 0; i
< n_switches
; i
++)
5116 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5117 && switches
[i
].part1
[p
- filter
] == 0
5118 && check_live_switch (i
, -1))
5126 /* If it is as desired (present for %{s...}, absent for %{!s...})
5127 then substitute either the switch or the specified
5128 conditional text. */
5129 if (present
!= negate
)
5133 switches
[i
].live_cond
= SWITCH_IGNORE
;
5134 switches
[i
].validated
= 1;
5136 else if (ordered
|| *p
== '&')
5137 ordered
= 1, switches
[i
].ordering
= 1;
5139 give_switch (i
, 0, include_blanks
);
5141 /* Even if many alternatives are matched, only output once. */
5146 /* Here if a %{|...} conditional fails: output a minus sign,
5147 which means "standard output" or "standard input". */
5148 do_spec_1 ("-", 0, NULL
);
5153 /* We didn't match; try again. */
5160 goto next_ampersand
;
5166 /* Doing this set of switches later preserves their command-line
5167 ordering. This is needed for e.g. -U, -D and -A. */
5168 for (i
= 0; i
< n_switches
; i
++)
5169 if (switches
[i
].ordering
== 1)
5171 switches
[i
].ordering
= 0;
5172 give_switch (i
, 0, include_blanks
);
5175 /* Process the spec just once, regardless of match count. */
5178 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
5186 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
5187 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
5188 spec, or -1 if either exact match or %* is used.
5190 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
5191 whose value does not begin with "no-" is obsoleted by the same value
5192 with the "no-", similarly for a switch with the "no-" prefix. */
5195 check_live_switch (switchnum
, prefix_length
)
5199 const char *name
= switches
[switchnum
].part1
;
5202 /* In the common case of {<at-most-one-letter>*}, a negating
5203 switch would always match, so ignore that case. We will just
5204 send the conflicting switches to the compiler phase. */
5205 if (prefix_length
>= 0 && prefix_length
<= 1)
5208 /* If we already processed this switch and determined if it was
5209 live or not, return our past determination. */
5210 if (switches
[switchnum
].live_cond
!= 0)
5211 return switches
[switchnum
].live_cond
> 0;
5213 /* Now search for duplicate in a manner that depends on the name. */
5217 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5218 if (switches
[i
].part1
[0] == 'O')
5220 switches
[switchnum
].validated
= 1;
5221 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5226 case 'W': case 'f': case 'm':
5227 if (! strncmp (name
+ 1, "no-", 3))
5229 /* We have Xno-YYY, search for XYYY. */
5230 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5231 if (switches
[i
].part1
[0] == name
[0]
5232 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
5234 switches
[switchnum
].validated
= 1;
5235 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5241 /* We have XYYY, search for Xno-YYY. */
5242 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
5243 if (switches
[i
].part1
[0] == name
[0]
5244 && switches
[i
].part1
[1] == 'n'
5245 && switches
[i
].part1
[2] == 'o'
5246 && switches
[i
].part1
[3] == '-'
5247 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
5249 switches
[switchnum
].validated
= 1;
5250 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
5257 /* Otherwise the switch is live. */
5258 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
5262 /* Pass a switch to the current accumulating command
5263 in the same form that we received it.
5264 SWITCHNUM identifies the switch; it is an index into
5265 the vector of switches gcc received, which is `switches'.
5266 This cannot fail since it never finishes a command line.
5268 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
5270 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5274 give_switch (switchnum
, omit_first_word
, include_blanks
)
5276 int omit_first_word
;
5279 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5282 if (!omit_first_word
)
5284 do_spec_1 ("-", 0, NULL
);
5285 do_spec_1 (switches
[switchnum
].part1
, 1, NULL
);
5288 if (switches
[switchnum
].args
!= 0)
5291 for (p
= switches
[switchnum
].args
; *p
; p
++)
5293 const char *arg
= *p
;
5296 do_spec_1 (" ", 0, NULL
);
5299 unsigned length
= strlen (arg
);
5302 while (length
-- && !IS_DIR_SEPARATOR (arg
[length
]))
5303 if (arg
[length
] == '.')
5305 ((char *)arg
)[length
] = 0;
5309 do_spec_1 (arg
, 1, NULL
);
5311 ((char *)arg
)[length
] = '.';
5312 do_spec_1 (suffix_subst
, 1, NULL
);
5315 do_spec_1 (arg
, 1, NULL
);
5319 do_spec_1 (" ", 0, NULL
);
5320 switches
[switchnum
].validated
= 1;
5323 /* Search for a file named NAME trying various prefixes including the
5324 user's -B prefix and some standard ones.
5325 Return the absolute file name found. If nothing is found, return NAME. */
5333 /* Try multilib_dir if it is defined. */
5334 if (multilib_dir
!= NULL
)
5338 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
5339 strcpy (try, multilib_dir
);
5340 strcat (try, dir_separator_str
);
5343 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5345 /* If we don't find it in the multi library dir, then fall
5346 through and look for it in the normal places. */
5347 if (newname
!= NULL
)
5351 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5352 return newname
? newname
: name
;
5355 /* Determine whether a directory exists. If LINKER, return 0 for
5356 certain fixed names not needed by the linker. If not LINKER, it is
5357 only important to return 0 if the host machine has a small ARG_MAX
5361 is_directory (path1
, path2
, linker
)
5366 int len1
= strlen (path1
);
5367 int len2
= strlen (path2
);
5368 char *path
= (char *) alloca (3 + len1
+ len2
);
5372 #ifndef SMALL_ARG_MAX
5377 /* Construct the path from the two parts. Ensure the string ends with "/.".
5378 The resulting path will be a directory even if the given path is a
5380 memcpy (path
, path1
, len1
);
5381 memcpy (path
+ len1
, path2
, len2
);
5382 cp
= path
+ len1
+ len2
;
5383 if (!IS_DIR_SEPARATOR (cp
[-1]))
5384 *cp
++ = DIR_SEPARATOR
;
5388 /* Exclude directories that the linker is known to search. */
5391 && strcmp (path
, concat (dir_separator_str
, "lib",
5392 dir_separator_str
, ".", NULL
)) == 0)
5394 && strcmp (path
, concat (dir_separator_str
, "usr",
5395 dir_separator_str
, "lib",
5396 dir_separator_str
, ".", NULL
)) == 0)))
5399 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5402 /* Set up the various global variables to indicate that we're processing
5403 the input file named FILENAME. */
5406 set_input (filename
)
5407 const char *filename
;
5409 register const char *p
;
5411 input_filename
= filename
;
5412 input_filename_length
= strlen (input_filename
);
5414 input_basename
= input_filename
;
5415 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5416 /* Skip drive name so 'x:foo' is handled properly. */
5417 if (input_basename
[1] == ':')
5418 input_basename
+= 2;
5420 for (p
= input_basename
; *p
; p
++)
5421 if (IS_DIR_SEPARATOR (*p
))
5422 input_basename
= p
+ 1;
5424 /* Find a suffix starting with the last period,
5425 and set basename_length to exclude that suffix. */
5426 basename_length
= strlen (input_basename
);
5427 suffixed_basename_length
= basename_length
;
5428 p
= input_basename
+ basename_length
;
5429 while (p
!= input_basename
&& *p
!= '.')
5431 if (*p
== '.' && p
!= input_basename
)
5433 basename_length
= p
- input_basename
;
5434 input_suffix
= p
+ 1;
5440 /* On fatal signals, delete all the temporary files. */
5443 fatal_error (signum
)
5446 signal (signum
, SIG_DFL
);
5447 delete_failure_queue ();
5448 delete_temp_files ();
5449 /* Get the same signal again, this time not handled,
5450 so its normal effect occurs. */
5451 kill (getpid (), signum
);
5454 extern int main
PARAMS ((int, const char *const *));
5459 const char *const *argv
;
5463 int linker_was_run
= 0;
5464 char *explicit_link_files
;
5467 struct user_specs
*uptr
;
5469 p
= argv
[0] + strlen (argv
[0]);
5470 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5474 xmalloc_set_program_name (programname
);
5476 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5477 /* Perform host dependant initialization when needed. */
5478 GCC_DRIVER_HOST_INITIALIZATION
;
5481 /* LC_CTYPE determines the character set used by the terminal so it has be set
5482 to output messages correctly. */
5484 #ifdef HAVE_LC_MESSAGES
5485 setlocale (LC_CTYPE
, "");
5486 setlocale (LC_MESSAGES
, "");
5488 setlocale (LC_ALL
, "");
5491 (void) bindtextdomain (PACKAGE
, localedir
);
5492 (void) textdomain (PACKAGE
);
5494 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5495 signal (SIGINT
, fatal_error
);
5497 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5498 signal (SIGHUP
, fatal_error
);
5500 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5501 signal (SIGTERM
, fatal_error
);
5503 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5504 signal (SIGPIPE
, fatal_error
);
5507 /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
5508 receive the signal. A different setting is inheritable */
5509 signal (SIGCHLD
, SIG_DFL
);
5513 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5515 obstack_init (&obstack
);
5517 /* Build multilib_select, et. al from the separate lines that make up each
5518 multilib selection. */
5520 const char *const *q
= multilib_raw
;
5523 obstack_init (&multilib_obstack
);
5524 while ((p
= *q
++) != (char *) 0)
5525 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5527 obstack_1grow (&multilib_obstack
, 0);
5528 multilib_select
= obstack_finish (&multilib_obstack
);
5530 q
= multilib_matches_raw
;
5531 while ((p
= *q
++) != (char *) 0)
5532 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5534 obstack_1grow (&multilib_obstack
, 0);
5535 multilib_matches
= obstack_finish (&multilib_obstack
);
5537 q
= multilib_exclusions_raw
;
5538 while ((p
= *q
++) != (char *) 0)
5539 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5541 obstack_1grow (&multilib_obstack
, 0);
5542 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5545 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5548 obstack_1grow (&multilib_obstack
, ' ');
5549 obstack_grow (&multilib_obstack
,
5550 multilib_defaults_raw
[i
],
5551 strlen (multilib_defaults_raw
[i
]));
5555 obstack_1grow (&multilib_obstack
, 0);
5556 multilib_defaults
= obstack_finish (&multilib_obstack
);
5559 /* Set up to remember the pathname of gcc and any options
5560 needed for collect. We use argv[0] instead of programname because
5561 we need the complete pathname. */
5562 obstack_init (&collect_obstack
);
5563 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5564 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5565 putenv (obstack_finish (&collect_obstack
));
5567 #ifdef INIT_ENVIRONMENT
5568 /* Set up any other necessary machine specific environment variables. */
5569 putenv (INIT_ENVIRONMENT
);
5572 /* Make a table of what switches there are (switches, n_switches).
5573 Make a table of specified input files (infiles, n_infiles).
5574 Decode switches that are handled locally. */
5576 process_command (argc
, argv
);
5581 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5583 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5584 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5587 for (i
= 0; (int) i
< n_switches
; i
++)
5589 const char *const *args
;
5592 obstack_grow (&collect_obstack
, " ", 1);
5595 obstack_grow (&collect_obstack
, "'-", 2);
5596 q
= switches
[i
].part1
;
5597 while ((p
= strchr (q
, '\'')))
5599 obstack_grow (&collect_obstack
, q
, p
- q
);
5600 obstack_grow (&collect_obstack
, "'\\''", 4);
5603 obstack_grow (&collect_obstack
, q
, strlen (q
));
5604 obstack_grow (&collect_obstack
, "'", 1);
5606 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5608 obstack_grow (&collect_obstack
, " '", 2);
5610 while ((p
= strchr (q
, '\'')))
5612 obstack_grow (&collect_obstack
, q
, p
- q
);
5613 obstack_grow (&collect_obstack
, "'\\''", 4);
5616 obstack_grow (&collect_obstack
, q
, strlen (q
));
5617 obstack_grow (&collect_obstack
, "'", 1);
5620 obstack_grow (&collect_obstack
, "\0", 1);
5621 putenv (obstack_finish (&collect_obstack
));
5624 /* Initialize the vector of specs to just the default.
5625 This means one element containing 0s, as a terminator. */
5627 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5628 memcpy ((char *) compilers
, (char *) default_compilers
,
5629 sizeof default_compilers
);
5630 n_compilers
= n_default_compilers
;
5632 /* Read specs from a file if there is one. */
5634 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5635 spec_version
, dir_separator_str
, NULL
);
5636 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL
);
5638 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5639 /* Read the specs file unless it is a default one. */
5640 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5641 read_specs (specs_file
, TRUE
);
5645 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5646 for any override of as, ld and libraries. */
5647 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5648 + strlen (just_machine_suffix
)
5649 + sizeof ("specs"));
5651 strcpy (specs_file
, standard_exec_prefix
);
5652 strcat (specs_file
, just_machine_suffix
);
5653 strcat (specs_file
, "specs");
5654 if (access (specs_file
, R_OK
) == 0)
5655 read_specs (specs_file
, TRUE
);
5657 /* If not cross-compiling, look for startfiles in the standard places. */
5658 if (*cross_compile
== '0')
5660 if (*md_exec_prefix
)
5662 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5663 PREFIX_PRIORITY_LAST
, 0, NULL
);
5664 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5665 PREFIX_PRIORITY_LAST
, 0, NULL
);
5668 if (*md_startfile_prefix
)
5669 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5670 PREFIX_PRIORITY_LAST
, 0, NULL
);
5672 if (*md_startfile_prefix_1
)
5673 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5674 PREFIX_PRIORITY_LAST
, 0, NULL
);
5676 /* If standard_startfile_prefix is relative, base it on
5677 standard_exec_prefix. This lets us move the installed tree
5678 as a unit. If GCC_EXEC_PREFIX is defined, base
5679 standard_startfile_prefix on that as well. */
5680 if (IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
))
5681 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5682 PREFIX_PRIORITY_LAST
, 0, NULL
);
5685 if (gcc_exec_prefix
)
5686 add_prefix (&startfile_prefixes
,
5687 concat (gcc_exec_prefix
, machine_suffix
,
5688 standard_startfile_prefix
, NULL
),
5689 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5690 add_prefix (&startfile_prefixes
,
5691 concat (standard_exec_prefix
,
5693 standard_startfile_prefix
, NULL
),
5694 NULL
, PREFIX_PRIORITY_LAST
, 0, NULL
);
5697 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5698 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5699 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5700 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5701 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5702 add_prefix (&startfile_prefixes
, "./", NULL
,
5703 PREFIX_PRIORITY_LAST
, 1, NULL
);
5708 if (!IS_ABSOLUTE_PATHNAME (standard_startfile_prefix
)
5710 add_prefix (&startfile_prefixes
,
5711 concat (gcc_exec_prefix
, machine_suffix
,
5712 standard_startfile_prefix
, NULL
),
5713 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL
);
5716 /* Process any user specified specs in the order given on the command
5718 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5720 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5721 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5724 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5725 if (gcc_exec_prefix
)
5727 char *temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5728 + strlen (spec_version
)
5729 + strlen (spec_machine
) + 3);
5730 strcpy (temp
, gcc_exec_prefix
);
5731 strcat (temp
, spec_machine
);
5732 strcat (temp
, dir_separator_str
);
5733 strcat (temp
, spec_version
);
5734 strcat (temp
, dir_separator_str
);
5735 gcc_exec_prefix
= temp
;
5738 /* Now we have the specs.
5739 Set the `valid' bits for switches that match anything in any spec. */
5741 validate_all_switches ();
5743 /* Now that we have the switches and the specs, set
5744 the subdirectory based on the options. */
5745 set_multilib_dir ();
5747 /* Warn about any switches that no pass was interested in. */
5749 for (i
= 0; (int) i
< n_switches
; i
++)
5750 if (! switches
[i
].validated
)
5751 error ("unrecognized option `-%s'", switches
[i
].part1
);
5753 /* Obey some of the options. */
5755 if (print_search_dirs
)
5757 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5758 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5759 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5763 if (print_file_name
)
5765 printf ("%s\n", find_file (print_file_name
));
5769 if (print_prog_name
)
5771 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5772 printf ("%s\n", (newname
? newname
: print_prog_name
));
5776 if (print_multi_lib
)
5778 print_multilib_info ();
5782 if (print_multi_directory
)
5784 if (multilib_dir
== NULL
)
5787 printf ("%s\n", multilib_dir
);
5791 if (target_help_flag
)
5793 /* Print if any target specific options.*/
5795 /* We do not exit here. Instead we have created a fake input file
5796 called 'target-dummy' which needs to be compiled, and we pass this
5797 on to the various sub-processes, along with the --target-help
5801 if (print_help_list
)
5807 printf (_("\nFor bug reporting instructions, please see:\n"));
5808 printf ("%s.\n", GCCBUGURL
);
5813 /* We do not exit here. Instead we have created a fake input file
5814 called 'help-dummy' which needs to be compiled, and we pass this
5815 on the the various sub-processes, along with the --help switch. */
5823 notice ("Configured with: %s\n", configuration_arguments
);
5825 #ifdef THREAD_MODEL_SPEC
5826 /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
5827 but there's no point in doing all this processing just to get
5828 thread_model back. */
5829 obstack_init (&obstack
);
5830 do_spec_1 (THREAD_MODEL_SPEC
, 0, thread_model
);
5831 obstack_1grow (&obstack
, '\0');
5832 thrmod
= obstack_finish (&obstack
);
5834 thrmod
= thread_model
;
5837 notice ("Thread model: %s\n", thrmod
);
5839 /* compiler_version is truncated at the first space when initialized
5840 from version string, so truncate version_string at the first space
5841 before comparing. */
5842 for (n
= 0; version_string
[n
]; n
++)
5843 if (version_string
[n
] == ' ')
5846 if (! strncmp (version_string
, compiler_version
, n
)
5847 && compiler_version
[n
] == 0)
5848 notice ("gcc version %s\n", version_string
);
5850 notice ("gcc driver version %s executing gcc version %s\n",
5851 version_string
, compiler_version
);
5857 if (n_infiles
== added_libraries
)
5858 fatal ("No input files");
5860 /* Make a place to record the compiler output file names
5861 that correspond to the input files. */
5864 i
+= lang_specific_extra_outfiles
;
5865 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5867 /* Record which files were specified explicitly as link input. */
5869 explicit_link_files
= xcalloc (1, n_infiles
);
5871 for (i
= 0; (int) i
< n_infiles
; i
++)
5873 int this_file_error
= 0;
5875 /* Tell do_spec what to substitute for %i. */
5877 input_file_number
= i
;
5878 set_input (infiles
[i
].name
);
5880 /* Use the same thing in %o, unless cp->spec says otherwise. */
5882 outfiles
[i
] = input_filename
;
5884 /* Figure out which compiler from the file's suffix. */
5887 = lookup_compiler (infiles
[i
].name
, input_filename_length
,
5888 infiles
[i
].language
);
5890 if (input_file_compiler
)
5892 /* Ok, we found an applicable compiler. Run its spec. */
5894 if (input_file_compiler
->spec
[0] == '#')
5895 error ("%s: %s compiler not installed on this system",
5896 input_filename
, &input_file_compiler
->spec
[1]);
5897 value
= do_spec (input_file_compiler
->spec
);
5899 this_file_error
= 1;
5902 /* If this file's name does not contain a recognized suffix,
5903 record it as explicit linker input. */
5906 explicit_link_files
[i
] = 1;
5908 /* Clear the delete-on-failure queue, deleting the files in it
5909 if this compilation failed. */
5911 if (this_file_error
)
5913 delete_failure_queue ();
5916 /* If this compilation succeeded, don't delete those files later. */
5917 clear_failure_queue ();
5920 /* Reset the output file name to the first input file name, for use
5921 with %b in LINK_SPEC on a target that prefers not to emit a.out
5924 set_input (infiles
[0].name
);
5926 if (error_count
== 0)
5928 /* Make sure INPUT_FILE_NUMBER points to first available open
5930 input_file_number
= n_infiles
;
5931 if (lang_specific_pre_link ())
5935 /* Run ld to link all the compiler output files. */
5937 if (error_count
== 0)
5939 int tmp
= execution_count
;
5941 /* We'll use ld if we can't find collect2. */
5942 if (! strcmp (linker_name_spec
, "collect2"))
5944 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5946 linker_name_spec
= "ld";
5948 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5950 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
5951 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
5953 value
= do_spec (link_command_spec
);
5956 linker_was_run
= (tmp
!= execution_count
);
5959 /* If options said don't run linker,
5960 complain about input files to be given to the linker. */
5962 if (! linker_was_run
&& error_count
== 0)
5963 for (i
= 0; (int) i
< n_infiles
; i
++)
5964 if (explicit_link_files
[i
])
5965 error ("%s: linker input file unused because linking not done",
5968 /* Delete some or all of the temporary files we made. */
5971 delete_failure_queue ();
5972 delete_temp_files ();
5974 if (print_help_list
)
5976 printf (("\nFor bug reporting instructions, please see:\n"));
5977 printf ("%s\n", GCCBUGURL
);
5980 return (signal_count
!= 0 ? 2
5981 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5985 /* Find the proper compilation spec for the file name NAME,
5986 whose length is LENGTH. LANGUAGE is the specified language,
5987 or 0 if this file is to be passed to the linker. */
5989 static struct compiler
*
5990 lookup_compiler (name
, length
, language
)
5993 const char *language
;
5995 struct compiler
*cp
;
5997 /* If this was specified by the user to be a linker input, indicate that. */
5998 if (language
!= 0 && language
[0] == '*')
6001 /* Otherwise, look for the language, if one is spec'd. */
6004 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6005 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
6008 error ("language %s not recognized", language
);
6012 /* Look for a suffix. */
6013 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6015 if (/* The suffix `-' matches only the file name `-'. */
6016 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6017 || (strlen (cp
->suffix
) < length
6018 /* See if the suffix matches the end of NAME. */
6019 && !strcmp (cp
->suffix
,
6020 name
+ length
- strlen (cp
->suffix
))
6025 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
6026 /* look again, but case-insensitively this time. */
6028 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
6030 if (/* The suffix `-' matches only the file name `-'. */
6031 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
6032 || (strlen (cp
->suffix
) < length
6033 /* See if the suffix matches the end of NAME. */
6034 && ((!strcmp (cp
->suffix
,
6035 name
+ length
- strlen (cp
->suffix
))
6036 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
6037 && !strcasecmp (cp
->suffix
,
6038 name
+ length
- strlen (cp
->suffix
)))
6044 if (cp
>= compilers
)
6046 if (cp
->spec
[0] != '@')
6047 /* A non-alias entry: return it. */
6050 /* An alias entry maps a suffix to a language.
6051 Search for the language; pass 0 for NAME and LENGTH
6052 to avoid infinite recursion if language not found. */
6053 return lookup_compiler (NULL
, 0, cp
->spec
+ 1);
6059 save_string (s
, len
)
6063 register char *result
= xmalloc (len
+ 1);
6065 memcpy (result
, s
, len
);
6071 pfatal_with_name (name
)
6074 perror_with_name (name
);
6075 delete_temp_files ();
6080 perror_with_name (name
)
6083 error ("%s: %s", name
, xstrerror (errno
));
6087 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
6088 const char *errmsg_fmt
;
6089 const char *errmsg_arg
;
6093 int save_errno
= errno
;
6095 /* Space for trailing '\0' is in %s. */
6096 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
6097 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
6103 pfatal_with_name (errmsg_fmt
);
6106 /* Output an error message and exit */
6111 fatal ("Internal gcc abort.");
6114 /* Output an error message and exit */
6117 fatal
VPARAMS ((const char *msgid
, ...))
6119 #ifndef ANSI_PROTOTYPES
6124 VA_START (ap
, msgid
);
6126 #ifndef ANSI_PROTOTYPES
6127 msgid
= va_arg (ap
, const char *);
6130 fprintf (stderr
, "%s: ", programname
);
6131 vfprintf (stderr
, _(msgid
), ap
);
6133 fprintf (stderr
, "\n");
6134 delete_temp_files ();
6139 error
VPARAMS ((const char *msgid
, ...))
6141 #ifndef ANSI_PROTOTYPES
6146 VA_START (ap
, msgid
);
6148 #ifndef ANSI_PROTOTYPES
6149 msgid
= va_arg (ap
, const char *);
6152 fprintf (stderr
, "%s: ", programname
);
6153 vfprintf (stderr
, _(msgid
), ap
);
6156 fprintf (stderr
, "\n");
6160 notice
VPARAMS ((const char *msgid
, ...))
6162 #ifndef ANSI_PROTOTYPES
6167 VA_START (ap
, msgid
);
6169 #ifndef ANSI_PROTOTYPES
6170 msgid
= va_arg (ap
, const char *);
6173 vfprintf (stderr
, _(msgid
), ap
);
6178 validate_all_switches ()
6180 struct compiler
*comp
;
6181 register const char *p
;
6183 struct spec_list
*spec
;
6185 for (comp
= compilers
; comp
->spec
; comp
++)
6189 if (c
== '%' && *p
== '{')
6190 /* We have a switch spec. */
6191 validate_switches (p
+ 1);
6194 /* Look through the linked list of specs read from the specs file. */
6195 for (spec
= specs
; spec
; spec
= spec
->next
)
6197 p
= *(spec
->ptr_spec
);
6199 if (c
== '%' && *p
== '{')
6200 /* We have a switch spec. */
6201 validate_switches (p
+ 1);
6204 p
= link_command_spec
;
6206 if (c
== '%' && *p
== '{')
6207 /* We have a switch spec. */
6208 validate_switches (p
+ 1);
6211 /* Look at the switch-name that comes after START
6212 and mark as valid all supplied switches that match it. */
6215 validate_switches (start
)
6218 register const char *p
= start
;
6235 while (*p
!= ':' && *p
!= '}' && *p
!= '|' && *p
!= '&')
6240 else if (p
[-1] == '*')
6242 /* Mark all matching switches as valid. */
6243 for (i
= 0; i
< n_switches
; i
++)
6244 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
- 1))
6245 switches
[i
].validated
= 1;
6249 /* Mark an exact matching switch as valid. */
6250 for (i
= 0; i
< n_switches
; i
++)
6252 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
6253 && switches
[i
].part1
[p
- filter
] == 0)
6254 switches
[i
].validated
= 1;
6258 if (*p
++ == '|' || p
[-1] == '&')
6262 /* Check whether a particular argument was used. The first time we
6263 canonicalize the switches to keep only the ones we care about. */
6273 const char *replace
;
6278 static struct mswitchstr
*mswitches
;
6279 static int n_mswitches
;
6284 struct mswitchstr
*matches
;
6288 /* Break multilib_matches into the component strings of string
6289 and replacement string. */
6290 for (q
= multilib_matches
; *q
!= '\0'; q
++)
6295 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
6297 q
= multilib_matches
;
6307 matches
[i
].len
= q
- matches
[i
].str
;
6309 matches
[i
].replace
= ++q
;
6310 while (*q
!= ';' && *q
!= '\0')
6316 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6322 /* Now build a list of the replacement string for switches that we care
6323 about. Make sure we allocate at least one entry. This prevents
6324 xmalloc from calling fatal, and prevents us from re-executing this
6327 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6328 * (n_switches
? n_switches
: 1));
6329 for (i
= 0; i
< n_switches
; i
++)
6331 int xlen
= strlen (switches
[i
].part1
);
6332 for (j
= 0; j
< cnt
; j
++)
6333 if (xlen
== matches
[j
].len
6334 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6336 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6337 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6338 mswitches
[n_mswitches
].replace
= (char *) 0;
6339 mswitches
[n_mswitches
].rep_len
= 0;
6346 for (i
= 0; i
< n_mswitches
; i
++)
6347 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6354 default_arg (p
, len
)
6358 const char *start
, *end
;
6360 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6362 while (*start
== ' ' || *start
== '\t')
6368 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6371 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6381 /* Work out the subdirectory to use based on the options. The format of
6382 multilib_select is a list of elements. Each element is a subdirectory
6383 name followed by a list of options followed by a semicolon. The format
6384 of multilib_exclusions is the same, but without the preceding
6385 directory. First gcc will check the exclusions, if none of the options
6386 beginning with an exclamation point are present, and all of the other
6387 options are present, then we will ignore this completely. Passing
6388 that, gcc will consider each multilib_select in turn using the same
6389 rules for matching the options. If a match is found, that subdirectory
6396 unsigned int this_path_len
;
6397 const char *this_path
, *this_arg
;
6401 p
= multilib_exclusions
;
6404 /* Ignore newlines. */
6411 /* Check the arguments. */
6425 while (*p
!= ' ' && *p
!= ';')
6432 if (*this_arg
!= '!')
6440 ok
= used_arg (this_arg
, p
- this_arg
);
6454 p
= multilib_select
;
6457 /* Ignore newlines. */
6464 /* Get the initial path. */
6472 this_path_len
= p
- this_path
;
6474 /* Check the arguments. */
6489 while (*p
!= ' ' && *p
!= ';')
6496 if (*this_arg
!= '!')
6504 /* If this is a default argument, we can just ignore it.
6505 This is true even if this_arg begins with '!'. Beginning
6506 with '!' does not mean that this argument is necessarily
6507 inappropriate for this library: it merely means that
6508 there is a more specific library which uses this
6509 argument. If this argument is a default, we need not
6510 consider that more specific library. */
6511 if (! default_arg (this_arg
, p
- this_arg
))
6513 ok
= used_arg (this_arg
, p
- this_arg
);
6524 if (this_path_len
!= 1
6525 || this_path
[0] != '.')
6527 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6528 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6529 new_multilib_dir
[this_path_len
] = '\0';
6530 multilib_dir
= new_multilib_dir
;
6539 /* Print out the multiple library subdirectory selection
6540 information. This prints out a series of lines. Each line looks
6541 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6542 required. Only the desired options are printed out, the negative
6543 matches. The options are print without a leading dash. There are
6544 no spaces to make it easy to use the information in the shell.
6545 Each subdirectory is printed only once. This assumes the ordering
6546 generated by the genmultilib script. Also, we leave out ones that match
6550 print_multilib_info ()
6552 const char *p
= multilib_select
;
6553 const char *last_path
= 0, *this_path
;
6555 unsigned int last_path_len
= 0;
6560 /* Ignore newlines. */
6567 /* Get the initial path. */
6576 /* Check for matches with the multilib_exclusions. We don't bother
6577 with the '!' in either list. If any of the exclusion rules match
6578 all of its options with the select rule, we skip it. */
6580 const char *e
= multilib_exclusions
;
6581 const char *this_arg
;
6586 /* Ignore newlines. */
6593 /* Check the arguments. */
6610 while (*e
!= ' ' && *e
!= ';')
6621 int len
= e
- this_arg
;
6628 while (*q
!= ' ' && *q
!= ';')
6635 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6636 default_arg (this_arg
, e
- this_arg
))
6666 /* If this is a duplicate, skip it. */
6667 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6668 && ! strncmp (last_path
, this_path
, last_path_len
));
6670 last_path
= this_path
;
6671 last_path_len
= p
- this_path
;
6674 /* If this directory requires any default arguments, we can skip
6675 it. We will already have printed a directory identical to
6676 this one which does not require that default argument. */
6694 while (*q
!= ' ' && *q
!= ';')
6702 && default_arg (arg
, q
- arg
))
6717 for (p1
= last_path
; p1
< p
; p1
++)
6736 use_arg
= *p
!= '!';
6741 while (*p
!= ' ' && *p
!= ';')
6756 /* If there are extra options, print them now. */
6757 if (multilib_extra
&& *multilib_extra
)
6759 int print_at
= TRUE
;
6762 for (q
= multilib_extra
; *q
!= '\0'; q
++)