1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 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". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
51 extern int getrusage
PARAMS ((int, struct rusage
*));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str
[] = { DIR_SEPARATOR
, 0 };
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes
;
103 /* Definition of string containing the arguments given to configure. */
104 #include "configargs.h"
106 /* Flag saying to print the directories gcc will search through looking for
107 programs, libraries, etc. */
109 static int print_search_dirs
;
111 /* Flag saying to print the full filename of this file
112 as found through our usual search mechanism. */
114 static const char *print_file_name
= NULL
;
116 /* As print_file_name, but search for executable file. */
118 static const char *print_prog_name
= NULL
;
120 /* Flag saying to print the relative path we'd use to
121 find libgcc.a given the current compiler flags. */
123 static int print_multi_directory
;
125 /* Flag saying to print the list of subdirectories and
126 compiler flags used to select them in a standard form. */
128 static int print_multi_lib
;
130 /* Flag saying to print the command line options understood by gcc and its
133 static int print_help_list
;
135 /* Flag indicating whether we should print the command and arguments */
137 static int verbose_flag
;
139 /* Flag indicating whether we should report subprocess execution times
140 (if this is supported by the system - see pexecute.c). */
142 static int report_times
;
144 /* Nonzero means write "temp" files in source directory
145 and use the source file's name in them, and don't delete them. */
147 static int save_temps_flag
;
149 /* The compiler version. */
151 static const char *compiler_version
;
153 /* The target version specified with -V */
155 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
157 /* The target machine specified with -b. */
159 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
161 /* Nonzero if cross-compiling.
162 When -b is used, the value comes from the `specs' file. */
165 static const char *cross_compile
= "1";
167 static const char *cross_compile
= "0";
170 #ifdef MODIFY_TARGET_NAME
172 /* Information on how to alter the target name based on a command-line
173 switch. The only case we support now is simply appending or deleting a
174 string to or from the end of the first part of the configuration name. */
179 enum add_del
{ADD
, DELETE
} add_del
;
182 modify_target
[] = MODIFY_TARGET_NAME
;
185 /* The number of errors that have occurred; the link phase will not be
186 run if this is non-zero. */
187 static int error_count
= 0;
189 /* Greatest exit code of sub-processes that has been encountered up to
191 static int greatest_status
= 1;
193 /* This is the obstack which we use to allocate many strings. */
195 static struct obstack obstack
;
197 /* This is the obstack to build an environment variable to pass to
198 collect2 that describes all of the relevant switches of what to
199 pass the compiler in building the list of pointers to constructors
202 static struct obstack collect_obstack
;
204 /* These structs are used to collect resource usage information for
206 #ifdef HAVE_GETRUSAGE
207 static struct rusage rus
, prus
;
210 /* Forward declaration for prototypes. */
213 static void init_spec
PARAMS ((void));
215 static char **split_directories
PARAMS ((const char *, int *));
216 static void free_split_directories
PARAMS ((char **));
217 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
219 static void store_arg
PARAMS ((const char *, int, int));
220 static char *load_specs
PARAMS ((const char *));
221 static void read_specs
PARAMS ((const char *, int));
222 static void set_spec
PARAMS ((const char *, const char *));
223 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
224 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
225 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
226 static int access_check
PARAMS ((const char *, int));
227 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
228 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
229 const char *, int, int, int *));
230 static void translate_options
PARAMS ((int *, const char *const **));
231 static char *skip_whitespace
PARAMS ((char *));
232 static void record_temp_file
PARAMS ((const char *, int, int));
233 static void delete_if_ordinary
PARAMS ((const char *));
234 static void delete_temp_files
PARAMS ((void));
235 static void delete_failure_queue
PARAMS ((void));
236 static void clear_failure_queue
PARAMS ((void));
237 static int check_live_switch
PARAMS ((int, int));
238 static const char *handle_braces
PARAMS ((const char *));
239 static char *save_string
PARAMS ((const char *, int));
240 static int do_spec_1
PARAMS ((const char *, int, const char *));
241 static const char *find_file
PARAMS ((const char *));
242 static int is_directory
PARAMS ((const char *, const char *, int));
243 static void validate_switches
PARAMS ((const char *));
244 static void validate_all_switches
PARAMS ((void));
245 static void give_switch
PARAMS ((int, int, int));
246 static int used_arg
PARAMS ((const char *, int));
247 static int default_arg
PARAMS ((const char *, int));
248 static void set_multilib_dir
PARAMS ((void));
249 static void print_multilib_info
PARAMS ((void));
250 static void pfatal_with_name
PARAMS ((const char *)) ATTRIBUTE_NORETURN
;
251 static void perror_with_name
PARAMS ((const char *));
252 static void pfatal_pexecute
PARAMS ((const char *, const char *))
254 static void error
PARAMS ((const char *, ...))
256 static void notice
PARAMS ((const char *, ...))
258 static void display_help
PARAMS ((void));
259 static void add_preprocessor_option
PARAMS ((const char *, int));
260 static void add_assembler_option
PARAMS ((const char *, int));
261 static void add_linker_option
PARAMS ((const char *, int));
262 static void process_command
PARAMS ((int, const char *const *));
263 static int execute
PARAMS ((void));
264 static void clear_args
PARAMS ((void));
265 static void fatal_error
PARAMS ((int));
266 static void set_input
PARAMS ((const char *));
268 /* Specs are strings containing lines, each of which (if not blank)
269 is made up of a program name, and arguments separated by spaces.
270 The program name must be exact and start from root, since no path
271 is searched and it is unreliable to depend on the current working directory.
272 Redirection of input or output is not supported; the subprograms must
273 accept filenames saying what files to read and write.
275 In addition, the specs can contain %-sequences to substitute variable text
276 or for conditional text. Here is a table of all defined %-sequences.
277 Note that spaces are not generated automatically around the results of
278 expanding these sequences; therefore, you can concatenate them together
279 or with constant text in a single argument.
281 %% substitute one % into the program name or argument.
282 %i substitute the name of the input file being processed.
283 %b substitute the basename of the input file being processed.
284 This is the substring up to (and not including) the last period
285 and not including the directory.
286 %B same as %b, but include the file suffix (text after the last period).
288 substitute a file name that has suffix SUFFIX and is chosen
289 once per compilation, and mark the argument a la %d. To reduce
290 exposure to denial-of-service attacks, the file name is now
291 chosen in a way that is hard to predict even when previously
292 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
293 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
294 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
295 had been pre-processed. Previously, %g was simply substituted
296 with a file name chosen once per compilation, without regard
297 to any appended suffix (which was therefore treated just like
298 ordinary text), making such attacks more likely to succeed.
300 like %g, but generates a new temporary file name even if %uSUFFIX
303 substitutes the last file name generated with %uSUFFIX, generating a
304 new one if there is no such last file name. In the absence of any
305 %uSUFFIX, this is just like %gSUFFIX, except they don't share
306 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
307 would involve the generation of two distinct file names, one
308 for each `%g.s' and another for each `%U.s'. Previously, %U was
309 simply substituted with a file name chosen for the previous %u,
310 without regard to any appended suffix.
312 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
313 writable, and if save-temps is off; otherwise, substitute the name
314 of a temporary file, just like %u. This temporary file is not
315 meant for communication between processes, but rather as a junk
317 %d marks the argument containing or following the %d as a
318 temporary file name, so that that file will be deleted if CC exits
319 successfully. Unlike %g, this contributes no text to the argument.
320 %w marks the argument containing or following the %w as the
321 "output file" of this compilation. This puts the argument
322 into the sequence of arguments that %o will substitute later.
324 like %{...} but mark last argument supplied within
325 as a file to be deleted on failure.
326 %o substitutes the names of all the output files, with spaces
327 automatically placed around them. You should write spaces
328 around the %o as well or the results are undefined.
329 %o is for use in the specs for running the linker.
330 Input files whose names have no recognized suffix are not compiled
331 at all, but they are included among the output files, so they will
333 %O substitutes the suffix for object files. Note that this is
334 handled specially when it immediately follows %g, %u, or %U
335 (with or without a suffix argument) because of the need for
336 those to form complete file names. The handling is such that
337 %O is treated exactly as if it had already been substituted,
338 except that %g, %u, and %U do not currently support additional
339 SUFFIX characters following %O as they would following, for
341 %p substitutes the standard macro predefinitions for the
342 current target machine. Use this when running cpp.
343 %P like %p, but puts `__' before and after the name of each macro.
344 (Except macros that already have __.)
346 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
347 %s current argument is the name of a library or startup file of some sort.
348 Search for that file in a standard list of directories
349 and substitute the full name found.
350 %eSTR Print STR as an error message. STR is terminated by a newline.
351 Use this when inconsistent options are detected.
352 %x{OPTION} Accumulate an option for %X.
353 %X Output the accumulated linker options specified by compilations.
354 %Y Output the accumulated assembler options specified by compilations.
355 %Z Output the accumulated preprocessor options specified by compilations.
356 %v1 Substitute the major version number of GCC.
357 (For version 2.5.3, this is 2.)
358 %v2 Substitute the minor version number of GCC.
359 (For version 2.5.3, this is 5.)
360 %v3 Substitute the patch level number of GCC.
361 (For version 2.5.3, this is 3.)
362 %a process ASM_SPEC as a spec.
363 This allows config.h to specify part of the spec for running as.
364 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
365 used here. This can be used to run a post-processor after the
366 assembler has done its job.
367 %D Dump out a -L option for each directory in startfile_prefixes.
368 If multilib_dir is set, extra entries are generated with it affixed.
369 %l process LINK_SPEC as a spec.
370 %L process LIB_SPEC as a spec.
371 %G process LIBGCC_SPEC as a spec.
372 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
373 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
374 %c process SIGNED_CHAR_SPEC as a spec.
375 %C process CPP_SPEC as a spec. A capital C is actually used here.
376 %1 process CC1_SPEC as a spec.
377 %2 process CC1PLUS_SPEC as a spec.
378 %| output "-" if the input for the current command is coming from a pipe.
379 %* substitute the variable part of a matched option. (See below.)
380 Note that each comma in the substituted string is replaced by
382 %{S} substitutes the -S switch, if that switch was given to CC.
383 If that switch was not specified, this substitutes nothing.
384 Here S is a metasyntactic variable.
385 %{S*} substitutes all the switches specified to CC whose names start
386 with -S. This is used for -o, -D, -I, etc; switches that take
387 arguments. CC considers `-o foo' as being one switch whose
388 name starts with `o'. %{o*} would substitute this text,
389 including the space; thus, two arguments would be generated.
390 %{^S*} likewise, but don't put a blank between a switch and any args.
391 %{S*:X} substitutes X if one or more switches whose names start with -S are
392 specified to CC. Note that the tail part of the -S option
393 (i.e. the part matched by the `*') will be substituted for each
394 occurrence of %* within X.
395 %{<S} remove all occurences of -S from the command line.
396 Note - this option is position dependent. % commands in the
397 spec string before this option will see -S, % commands in the
398 spec string after this option will not.
399 %{S:X} substitutes X, but only if the -S switch was given to CC.
400 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
401 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
402 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
403 %{.S:X} substitutes X, but only if processing a file with suffix S.
404 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
405 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
406 combined with ! and . as above binding stronger than the OR.
407 %(Spec) processes a specification defined in a specs file as *Spec:
408 %[Spec] as above, but put __ around -D arguments
410 The conditional text X in a %{S:X} or %{!S:X} construct may contain
411 other nested % constructs or spaces, or even newlines. They are
412 processed as usual, as described above.
414 The -O, -f, -m, and -W switches are handled specifically in these
415 constructs. If another value of -O or the negated form of a -f, -m, or
416 -W switch is found later in the command line, the earlier switch
417 value is ignored, except with {S*} where S is just one letter; this
418 passes all matching options.
420 The character | at the beginning of the predicate text is used to indicate
421 that a command should be piped to the following command, but only if -pipe
424 Note that it is built into CC which switches take arguments and which
425 do not. You might think it would be useful to generalize this to
426 allow each compiler's spec to say which switches take arguments. But
427 this cannot be done in a consistent fashion. CC cannot even decide
428 which input files have been specified without knowing which switches
429 take arguments, and it must know which input files to compile in order
430 to tell which compilers to run.
432 CC also knows implicitly that arguments starting in `-l' are to be
433 treated as compiler output files, and passed to the linker in their
434 proper position among the other output files. */
436 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
438 /* config.h can define ASM_SPEC to provide extra args to the assembler
439 or extra switch-translations. */
444 /* config.h can define ASM_FINAL_SPEC to run a post processor after
445 the assembler has run. */
446 #ifndef ASM_FINAL_SPEC
447 #define ASM_FINAL_SPEC ""
450 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
451 or extra switch-translations. */
456 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
457 or extra switch-translations. */
462 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
463 or extra switch-translations. */
465 #define CC1PLUS_SPEC ""
468 /* config.h can define LINK_SPEC to provide extra args to the linker
469 or extra switch-translations. */
474 /* config.h can define LIB_SPEC to override the default libraries. */
476 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
479 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
482 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
483 /* Have gcc do the search for libgcc.a. */
484 #define LIBGCC_SPEC "libgcc.a%s"
486 #define LIBGCC_SPEC "-lgcc"
490 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
491 #ifndef STARTFILE_SPEC
492 #define STARTFILE_SPEC \
493 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
496 /* config.h can define SWITCHES_NEED_SPACES to control which options
497 require spaces between the option and the argument. */
498 #ifndef SWITCHES_NEED_SPACES
499 #define SWITCHES_NEED_SPACES ""
502 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
504 #define ENDFILE_SPEC ""
507 /* This spec is used for telling cpp whether char is signed or not. */
508 #ifndef SIGNED_CHAR_SPEC
509 /* Use #if rather than ?:
510 because MIPS C compiler rejects like ?: in initializers. */
511 #if DEFAULT_SIGNED_CHAR
512 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
514 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
519 #define LINKER_NAME "collect2"
522 /* Here is the spec for running the linker, after compiling all files. */
524 /* -u* was put back because both BSD and SysV seem to support it. */
525 /* %{static:} simply prevents an error message if the target machine
526 doesn't handle -static. */
527 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
528 scripts which exist in user specified directories, or in standard
530 #ifndef LINK_COMMAND_SPEC
531 #define LINK_COMMAND_SPEC "\
532 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
533 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
534 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
535 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
536 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
539 #ifndef LINK_LIBGCC_SPEC
540 # ifdef LINK_LIBGCC_SPECIAL
541 /* Don't generate -L options for startfile prefix list. */
542 # define LINK_LIBGCC_SPEC ""
544 /* Do generate them. */
545 # define LINK_LIBGCC_SPEC "%D"
549 static const char *cpp_spec
= CPP_SPEC
;
550 static const char *cpp_predefines
= CPP_PREDEFINES
;
551 static const char *cc1_spec
= CC1_SPEC
;
552 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
553 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
554 static const char *asm_spec
= ASM_SPEC
;
555 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
556 static const char *link_spec
= LINK_SPEC
;
557 static const char *lib_spec
= LIB_SPEC
;
558 static const char *libgcc_spec
= LIBGCC_SPEC
;
559 static const char *endfile_spec
= ENDFILE_SPEC
;
560 static const char *startfile_spec
= STARTFILE_SPEC
;
561 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
562 static const char *linker_name_spec
= LINKER_NAME
;
563 static const char *link_command_spec
= LINK_COMMAND_SPEC
;
564 static const char *link_libgcc_spec
= LINK_LIBGCC_SPEC
;
566 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
567 There should be no need to override these in target dependent files,
568 but we need to copy them to the specs file so that newer versions
569 of the GCC driver can correctly drive older tool chains with the
570 appropriate -B options. */
572 static const char *trad_capable_cpp
=
573 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
575 static const char *cpp_options
=
576 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
577 %{std*} %{nostdinc*}\
578 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
579 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
580 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
581 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
582 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
583 %{ffast-math:-D__FAST_MATH__}\
584 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
585 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
586 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
587 %{fshow-column} %{fno-show-column}\
588 %{fleading-underscore} %{fno-leading-underscore}\
590 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{U*} %{D*} %{i*} %Z %i\
591 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
593 /* NB: This is shared amongst all front-ends. */
594 static const char *cc1_options
=
595 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
596 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
597 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
598 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
599 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
600 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
601 %{fsyntax-only:-o %j}";
603 static const char *asm_options
=
604 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
606 static const char *invoke_as
=
607 "%{!S:-o %{|!pipe:%g.s} |\n as %(asm_options) %{!pipe:%g.s} %A }";
609 /* Some compilers have limits on line lengths, and the multilib_select
610 and/or multilib_matches strings can be very long, so we build them at
612 static struct obstack multilib_obstack
;
613 static const char *multilib_select
;
614 static const char *multilib_matches
;
615 static const char *multilib_defaults
;
616 static const char *multilib_exclusions
;
617 #include "multilib.h"
619 /* Check whether a particular argument is a default argument. */
621 #ifndef MULTILIB_DEFAULTS
622 #define MULTILIB_DEFAULTS { "" }
625 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
629 struct user_specs
*next
;
630 const char *filename
;
633 static struct user_specs
*user_specs_head
, *user_specs_tail
;
635 /* This defines which switch letters take arguments. */
637 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
638 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
639 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
640 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
641 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
642 || (CHAR) == 'B' || (CHAR) == 'b')
644 #ifndef SWITCH_TAKES_ARG
645 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
648 /* This defines which multi-letter switches take arguments. */
650 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
651 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
652 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
653 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
654 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
655 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
656 || !strcmp (STR, "isystem") || !strcmp (STR, "specs") \
657 || !strcmp (STR, "MF") || !strcmp (STR, "MT"))
659 #ifndef WORD_SWITCH_TAKES_ARG
660 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
663 #ifdef HAVE_EXECUTABLE_SUFFIX
664 /* This defines which switches stop a full compilation. */
665 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
666 ((CHAR) == 'c' || (CHAR) == 'S')
668 #ifndef SWITCH_CURTAILS_COMPILATION
669 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
670 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
674 /* Record the mapping from file suffixes for compilation specs. */
678 const char *suffix
; /* Use this compiler for input files
679 whose names end in this suffix. */
681 const char *spec
; /* To use this compiler, run this spec. */
684 /* Pointer to a vector of `struct compiler' that gives the spec for
685 compiling a file, based on its suffix.
686 A file that does not end in any of these suffixes will be passed
687 unchanged to the loader and nothing else will be done to it.
689 An entry containing two 0s is used to terminate the vector.
691 If multiple entries match a file, the last matching one is used. */
693 static struct compiler
*compilers
;
695 /* Number of entries in `compilers', not counting the null terminator. */
697 static int n_compilers
;
699 /* The default list of file name suffixes and their compilation specs. */
701 static struct compiler default_compilers
[] =
703 /* Add lists of suffixes of known languages here. If those languages
704 were not present when we built the driver, we will hit these copies
705 and be given a more meaningful error than "file not used since
706 linking is not done". */
707 {".m", "#Objective-C"},
708 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
709 {".c++", "#C++"}, {".C", "#C++"},
710 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
711 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
712 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
713 {".p", "#Pascal"}, {".pas", "#Pascal"},
714 {".ch", "#Chill"}, {".chi", "#Chill"},
715 {".java", "#Java"}, {".class", "#Java"},
716 {".zip", "#Java"}, {".jar", "#Java"},
717 /* Next come the entries for C. */
721 /* cc1 has an integrated ISO C preprocessor. We should invoke the
722 external preprocessor if -save-temps or -traditional is given. */
723 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
725 %{save-temps:%(trad_capable_cpp) -lang-c %{ansi:-std=c89}\
726 %(cpp_options) %b.i \n\
727 cc1 -fpreprocessed %b.i %(cc1_options)}\
729 %{traditional|ftraditional|traditional-cpp:\
730 tradcpp0 -lang-c %{ansi:-std=c89} %(cpp_options) %{!pipe:%g.i} |\n\
731 cc1 -fpreprocessed %{!pipe:%g.i} %(cc1_options)}\
732 %{!traditional:%{!ftraditional:%{!traditional-cpp:\
733 cc1 -lang-c %{ansi:-std=c89} %(cpp_options) %(cc1_options)}}}}\
734 %{!fsyntax-only:%(invoke_as)}}}}"
735 #else /* ! USE_CPPLIB */
736 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
737 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
738 cc1 %{!pipe:%g.i} %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"
739 #endif /* ! USE_CPPLIB */
742 "%{!E:%e-E required when input is from standard input}\
743 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
746 "%{!E:%eCompilation of header file requested} \
747 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
748 {".i", "@cpp-output"},
750 "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}"},
751 {".s", "@assembler"},
753 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
754 {".S", "@assembler-with-cpp"},
755 {"@assembler-with-cpp",
756 "%(trad_capable_cpp) -lang-asm %(cpp_options)\
757 %{!M:%{!MM:%{!E:%(invoke_as)}}}"},
759 /* Mark end of table */
763 /* Number of elements in default_compilers, not counting the terminator. */
765 static int n_default_compilers
766 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
768 /* A vector of options to give to the linker.
769 These options are accumulated by %x,
770 and substituted into the linker command with %X. */
771 static int n_linker_options
;
772 static char **linker_options
;
774 /* A vector of options to give to the assembler.
775 These options are accumulated by -Wa,
776 and substituted into the assembler command with %Y. */
777 static int n_assembler_options
;
778 static char **assembler_options
;
780 /* A vector of options to give to the preprocessor.
781 These options are accumulated by -Wp,
782 and substituted into the preprocessor command with %Z. */
783 static int n_preprocessor_options
;
784 static char **preprocessor_options
;
786 /* Define how to map long options into short ones. */
788 /* This structure describes one mapping. */
791 /* The long option's name. */
793 /* The equivalent short option. */
794 const char *equivalent
;
795 /* Argument info. A string of flag chars; NULL equals no options.
796 a => argument required.
797 o => argument optional.
798 j => join argument to equivalent, making one word.
799 * => require other text after NAME as an argument. */
800 const char *arg_info
;
803 /* This is the table of mappings. Mappings are tried sequentially
804 for each option encountered; the first one that matches, wins. */
806 struct option_map option_map
[] =
808 {"--all-warnings", "-Wall", 0},
809 {"--ansi", "-ansi", 0},
810 {"--assemble", "-S", 0},
811 {"--assert", "-A", "a"},
812 {"--classpath", "-fclasspath=", "aj"},
813 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
814 {"--comments", "-C", 0},
815 {"--compile", "-c", 0},
816 {"--debug", "-g", "oj"},
817 {"--define-macro", "-D", "aj"},
818 {"--dependencies", "-M", 0},
819 {"--dump", "-d", "a"},
820 {"--dumpbase", "-dumpbase", "a"},
821 {"--entry", "-e", 0},
822 {"--extra-warnings", "-W", 0},
823 {"--for-assembler", "-Wa", "a"},
824 {"--for-linker", "-Xlinker", "a"},
825 {"--force-link", "-u", "a"},
826 {"--imacros", "-imacros", "a"},
827 {"--include", "-include", "a"},
828 {"--include-barrier", "-I-", 0},
829 {"--include-directory", "-I", "aj"},
830 {"--include-directory-after", "-idirafter", "a"},
831 {"--include-prefix", "-iprefix", "a"},
832 {"--include-with-prefix", "-iwithprefix", "a"},
833 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
834 {"--include-with-prefix-after", "-iwithprefix", "a"},
835 {"--language", "-x", "a"},
836 {"--library-directory", "-L", "a"},
837 {"--machine", "-m", "aj"},
838 {"--machine-", "-m", "*j"},
839 {"--no-line-commands", "-P", 0},
840 {"--no-precompiled-includes", "-noprecomp", 0},
841 {"--no-standard-includes", "-nostdinc", 0},
842 {"--no-standard-libraries", "-nostdlib", 0},
843 {"--no-warnings", "-w", 0},
844 {"--optimize", "-O", "oj"},
845 {"--output", "-o", "a"},
846 {"--output-class-directory", "-foutput-class-dir=", "ja"},
847 {"--pedantic", "-pedantic", 0},
848 {"--pedantic-errors", "-pedantic-errors", 0},
849 {"--pipe", "-pipe", 0},
850 {"--prefix", "-B", "a"},
851 {"--preprocess", "-E", 0},
852 {"--print-search-dirs", "-print-search-dirs", 0},
853 {"--print-file-name", "-print-file-name=", "aj"},
854 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
855 {"--print-missing-file-dependencies", "-MG", 0},
856 {"--print-multi-lib", "-print-multi-lib", 0},
857 {"--print-multi-directory", "-print-multi-directory", 0},
858 {"--print-prog-name", "-print-prog-name=", "aj"},
859 {"--profile", "-p", 0},
860 {"--profile-blocks", "-a", 0},
861 {"--quiet", "-q", 0},
862 {"--save-temps", "-save-temps", 0},
863 {"--shared", "-shared", 0},
864 {"--silent", "-q", 0},
865 {"--specs", "-specs=", "aj"},
866 {"--static", "-static", 0},
867 {"--std", "-std=", "aj"},
868 {"--symbolic", "-symbolic", 0},
869 {"--target", "-b", "a"},
870 {"--time", "-time", 0},
871 {"--trace-includes", "-H", 0},
872 {"--traditional", "-traditional", 0},
873 {"--traditional-cpp", "-traditional-cpp", 0},
874 {"--trigraphs", "-trigraphs", 0},
875 {"--undefine-macro", "-U", "aj"},
876 {"--use-version", "-V", "a"},
877 {"--user-dependencies", "-MM", 0},
878 {"--verbose", "-v", 0},
879 {"--version", "-dumpversion", 0},
880 {"--warn-", "-W", "*j"},
881 {"--write-dependencies", "-MD", 0},
882 {"--write-user-dependencies", "-MMD", 0},
886 /* Translate the options described by *ARGCP and *ARGVP.
887 Make a new vector and store it back in *ARGVP,
888 and store its length in *ARGVC. */
891 translate_options (argcp
, argvp
)
893 const char *const **argvp
;
897 const char *const *argv
= *argvp
;
899 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
903 newv
[newindex
++] = argv
[i
++];
907 /* Translate -- options. */
908 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
911 /* Find a mapping that applies to this option. */
912 for (j
= 0; j
< ARRAY_SIZE (option_map
); j
++)
914 size_t optlen
= strlen (option_map
[j
].name
);
915 size_t arglen
= strlen (argv
[i
]);
916 size_t complen
= arglen
> optlen
? optlen
: arglen
;
917 const char *arginfo
= option_map
[j
].arg_info
;
922 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
929 for (k
= j
+ 1; k
< ARRAY_SIZE (option_map
); k
++)
930 if (strlen (option_map
[k
].name
) >= arglen
931 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
933 error ("Ambiguous abbreviation %s", argv
[i
]);
937 if (k
!= ARRAY_SIZE (option_map
))
943 /* If the option has an argument, accept that. */
944 if (argv
[i
][optlen
] == '=')
945 arg
= argv
[i
] + optlen
+ 1;
947 /* If this mapping requires extra text at end of name,
948 accept that as "argument". */
949 else if (strchr (arginfo
, '*') != 0)
950 arg
= argv
[i
] + optlen
;
952 /* Otherwise, extra text at end means mismatch.
953 Try other mappings. */
958 else if (strchr (arginfo
, '*') != 0)
960 error ("Incomplete `%s' option", option_map
[j
].name
);
964 /* Handle arguments. */
965 if (strchr (arginfo
, 'a') != 0)
971 error ("Missing argument to `%s' option",
979 else if (strchr (arginfo
, '*') != 0)
981 else if (strchr (arginfo
, 'o') == 0)
984 error ("Extraneous argument to `%s' option",
989 /* Store the translation as one argv elt or as two. */
990 if (arg
!= 0 && strchr (arginfo
, 'j') != 0)
991 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
995 newv
[newindex
++] = option_map
[j
].equivalent
;
996 newv
[newindex
++] = arg
;
999 newv
[newindex
++] = option_map
[j
].equivalent
;
1007 /* Handle old-fashioned options--just copy them through,
1008 with their arguments. */
1009 else if (argv
[i
][0] == '-')
1011 const char *p
= argv
[i
] + 1;
1015 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1016 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1017 else if (WORD_SWITCH_TAKES_ARG (p
))
1018 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1019 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1022 else if (! strcmp (p
, "Xlinker"))
1025 /* Watch out for an option at the end of the command line that
1026 is missing arguments, and avoid skipping past the end of the
1028 if (nskip
+ i
> argc
)
1033 newv
[newindex
++] = argv
[i
++];
1038 /* Ordinary operands, or +e options. */
1039 newv
[newindex
++] = argv
[i
++];
1054 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1055 be considered whitespace. */
1056 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1058 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1072 /* Structures to keep track of prefixes to try when looking for files. */
1076 char *prefix
; /* String to prepend to the path. */
1077 struct prefix_list
*next
; /* Next in linked list. */
1078 int require_machine_suffix
; /* Don't use without machine_suffix. */
1079 /* 2 means try both machine_suffix and just_machine_suffix. */
1080 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1081 int priority
; /* Sort key - priority within list */
1086 struct prefix_list
*plist
; /* List of prefixes to try */
1087 int max_len
; /* Max length of a prefix in PLIST */
1088 const char *name
; /* Name of this list (used in config stuff) */
1091 /* List of prefixes to try when looking for executables. */
1093 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1095 /* List of prefixes to try when looking for startup (crt0) files. */
1097 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1099 /* List of prefixes to try when looking for include files. */
1101 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1103 /* Suffix to attach to directories searched for commands.
1104 This looks like `MACHINE/VERSION/'. */
1106 static const char *machine_suffix
= 0;
1108 /* Suffix to attach to directories searched for commands.
1109 This is just `MACHINE/'. */
1111 static const char *just_machine_suffix
= 0;
1113 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1115 static const char *gcc_exec_prefix
;
1117 /* Default prefixes to attach to command names. */
1119 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1120 #undef MD_EXEC_PREFIX
1121 #undef MD_STARTFILE_PREFIX
1122 #undef MD_STARTFILE_PREFIX_1
1125 /* If no prefixes defined, use the null string, which will disable them. */
1126 #ifndef MD_EXEC_PREFIX
1127 #define MD_EXEC_PREFIX ""
1129 #ifndef MD_STARTFILE_PREFIX
1130 #define MD_STARTFILE_PREFIX ""
1132 #ifndef MD_STARTFILE_PREFIX_1
1133 #define MD_STARTFILE_PREFIX_1 ""
1136 /* Supply defaults for the standard prefixes. */
1138 #ifndef STANDARD_EXEC_PREFIX
1139 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1141 #ifndef STANDARD_STARTFILE_PREFIX
1142 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1144 #ifndef TOOLDIR_BASE_PREFIX
1145 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1147 #ifndef STANDARD_BINDIR_PREFIX
1148 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1151 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1152 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1153 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1155 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1156 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1157 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1158 static const char *standard_startfile_prefix_1
= "/lib/";
1159 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1161 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1162 static const char *tooldir_prefix
;
1164 static const char *standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1166 /* Subdirectory to use for locating libraries. Set by
1167 set_multilib_dir based on the compilation options. */
1169 static const char *multilib_dir
;
1171 /* Structure to keep track of the specs that have been defined so far.
1172 These are accessed using %(specname) or %[specname] in a compiler
1177 /* The following 2 fields must be first */
1178 /* to allow EXTRA_SPECS to be initialized */
1179 const char *name
; /* name of the spec. */
1180 const char *ptr
; /* available ptr if no static pointer */
1182 /* The following fields are not initialized */
1183 /* by EXTRA_SPECS */
1184 const char **ptr_spec
; /* pointer to the spec itself. */
1185 struct spec_list
*next
; /* Next spec in linked list. */
1186 int name_len
; /* length of the name */
1187 int alloc_p
; /* whether string was allocated */
1190 #define INIT_STATIC_SPEC(NAME,PTR) \
1191 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1193 /* List of statically defined specs. */
1194 static struct spec_list static_specs
[] =
1196 INIT_STATIC_SPEC ("asm", &asm_spec
),
1197 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1198 INIT_STATIC_SPEC ("asm_options", &asm_options
),
1199 INIT_STATIC_SPEC ("invoke_as", &invoke_as
),
1200 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1201 INIT_STATIC_SPEC ("cpp_options", &cpp_options
),
1202 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp
),
1203 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1204 INIT_STATIC_SPEC ("cc1_options", &cc1_options
),
1205 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1206 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1207 INIT_STATIC_SPEC ("link", &link_spec
),
1208 INIT_STATIC_SPEC ("lib", &lib_spec
),
1209 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1210 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1211 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1212 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1213 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1214 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1215 INIT_STATIC_SPEC ("version", &compiler_version
),
1216 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1217 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1218 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1219 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1220 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
1221 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1222 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec
),
1223 INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix
),
1224 INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix
),
1225 INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1
),
1228 #ifdef EXTRA_SPECS /* additional specs needed */
1229 /* Structure to keep track of just the first two args of a spec_list.
1230 That is all that the EXTRA_SPECS macro gives us. */
1237 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1238 static struct spec_list
*extra_specs
= (struct spec_list
*) 0;
1241 /* List of dynamically allocates specs that have been defined so far. */
1243 static struct spec_list
*specs
= (struct spec_list
*) 0;
1245 /* Initialize the specs lookup routines. */
1250 struct spec_list
*next
= (struct spec_list
*) 0;
1251 struct spec_list
*sl
= (struct spec_list
*) 0;
1255 return; /* Already initialized. */
1258 notice ("Using builtin specs.\n");
1261 extra_specs
= (struct spec_list
*)
1262 xcalloc (sizeof (struct spec_list
), ARRAY_SIZE (extra_specs_1
));
1264 for (i
= ARRAY_SIZE (extra_specs_1
) - 1; i
>= 0; i
--)
1266 sl
= &extra_specs
[i
];
1267 sl
->name
= extra_specs_1
[i
].name
;
1268 sl
->ptr
= extra_specs_1
[i
].ptr
;
1270 sl
->name_len
= strlen (sl
->name
);
1271 sl
->ptr_spec
= &sl
->ptr
;
1276 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1278 sl
= &static_specs
[i
];
1286 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1287 removed; If the spec starts with a + then SPEC is added to the end of the
1291 set_spec (name
, spec
)
1295 struct spec_list
*sl
;
1296 const char *old_spec
;
1297 int name_len
= strlen (name
);
1300 /* If this is the first call, initialize the statically allocated specs. */
1303 struct spec_list
*next
= (struct spec_list
*) 0;
1304 for (i
= ARRAY_SIZE (static_specs
) - 1; i
>= 0; i
--)
1306 sl
= &static_specs
[i
];
1313 /* See if the spec already exists. */
1314 for (sl
= specs
; sl
; sl
= sl
->next
)
1315 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1320 /* Not found - make it. */
1321 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1322 sl
->name
= xstrdup (name
);
1323 sl
->name_len
= name_len
;
1324 sl
->ptr_spec
= &sl
->ptr
;
1326 *(sl
->ptr_spec
) = "";
1331 old_spec
= *(sl
->ptr_spec
);
1332 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1333 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1338 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1341 /* Free the old spec. */
1342 if (old_spec
&& sl
->alloc_p
)
1343 free ((PTR
) old_spec
);
1348 /* Accumulate a command (program name and args), and run it. */
1350 /* Vector of pointers to arguments in the current line of specifications. */
1352 static const char **argbuf
;
1354 /* Number of elements allocated in argbuf. */
1356 static int argbuf_length
;
1358 /* Number of elements in argbuf currently in use (containing args). */
1360 static int argbuf_index
;
1362 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1363 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1366 static struct temp_name
{
1367 const char *suffix
; /* suffix associated with the code. */
1368 int length
; /* strlen (suffix). */
1369 int unique
; /* Indicates whether %g or %u/%U was used. */
1370 const char *filename
; /* associated filename. */
1371 int filename_length
; /* strlen (filename). */
1372 struct temp_name
*next
;
1375 /* Number of commands executed so far. */
1377 static int execution_count
;
1379 /* Number of commands that exited with a signal. */
1381 static int signal_count
;
1383 /* Name with which this program was invoked. */
1385 static const char *programname
;
1387 /* Clear out the vector of arguments (after a command is executed). */
1395 /* Add one argument to the vector at the end.
1396 This is done when a space is seen or at the end of the line.
1397 If DELETE_ALWAYS is nonzero, the arg is a filename
1398 and the file should be deleted eventually.
1399 If DELETE_FAILURE is nonzero, the arg is a filename
1400 and the file should be deleted if this compilation fails. */
1403 store_arg (arg
, delete_always
, delete_failure
)
1405 int delete_always
, delete_failure
;
1407 if (argbuf_index
+ 1 == argbuf_length
)
1409 = (const char **) xrealloc (argbuf
,
1410 (argbuf_length
*= 2) * sizeof (const char *));
1412 argbuf
[argbuf_index
++] = arg
;
1413 argbuf
[argbuf_index
] = 0;
1415 if (delete_always
|| delete_failure
)
1416 record_temp_file (arg
, delete_always
, delete_failure
);
1419 /* Load specs from a file name named FILENAME, replacing occurances of
1420 various different types of line-endings, \r\n, \n\r and just \r, with
1424 load_specs (filename
)
1425 const char *filename
;
1429 struct stat statbuf
;
1436 notice ("Reading specs from %s\n", filename
);
1438 /* Open and stat the file. */
1439 desc
= open (filename
, O_RDONLY
, 0);
1441 pfatal_with_name (filename
);
1442 if (stat (filename
, &statbuf
) < 0)
1443 pfatal_with_name (filename
);
1445 /* Read contents of file into BUFFER. */
1446 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1447 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1449 pfatal_with_name (filename
);
1450 buffer
[readlen
] = 0;
1453 specs
= xmalloc (readlen
+ 1);
1455 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1461 if (buffer_p
> buffer
&& *(buffer_p
- 1) == '\n') /* \n\r */
1463 else if (*(buffer_p
+ 1) == '\n') /* \r\n */
1477 /* Read compilation specs from a file named FILENAME,
1478 replacing the default ones.
1480 A suffix which starts with `*' is a definition for
1481 one of the machine-specific sub-specs. The "suffix" should be
1482 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1483 The corresponding spec is stored in asm_spec, etc.,
1484 rather than in the `compilers' vector.
1486 Anything invalid in the file is a fatal error. */
1489 read_specs (filename
, main_p
)
1490 const char *filename
;
1496 buffer
= load_specs (filename
);
1498 /* Scan BUFFER for specs, putting them in the vector. */
1504 char *in
, *out
, *p1
, *p2
, *p3
;
1506 /* Advance P in BUFFER to the next nonblank nocomment line. */
1507 p
= skip_whitespace (p
);
1511 /* Is this a special command that starts with '%'? */
1512 /* Don't allow this for the main specs file, since it would
1513 encourage people to overwrite it. */
1514 if (*p
== '%' && !main_p
)
1517 while (*p
&& *p
!= '\n')
1523 if (!strncmp (p1
, "%include", sizeof ("%include") - 1)
1524 && (p1
[sizeof "%include" - 1] == ' '
1525 || p1
[sizeof "%include" - 1] == '\t'))
1529 p1
+= sizeof ("%include");
1530 while (*p1
== ' ' || *p1
== '\t')
1533 if (*p1
++ != '<' || p
[-2] != '>')
1534 fatal ("specs %%include syntax malformed after %ld characters",
1535 (long) (p1
- buffer
+ 1));
1538 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1539 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1542 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1543 && (p1
[sizeof "%include_noerr" - 1] == ' '
1544 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1548 p1
+= sizeof "%include_noerr";
1549 while (*p1
== ' ' || *p1
== '\t')
1552 if (*p1
++ != '<' || p
[-2] != '>')
1553 fatal ("specs %%include syntax malformed after %ld characters",
1554 (long) (p1
- buffer
+ 1));
1557 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1559 read_specs (new_filename
, FALSE
);
1560 else if (verbose_flag
)
1561 notice ("Could not find specs file %s\n", p1
);
1564 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1565 && (p1
[sizeof "%rename" - 1] == ' '
1566 || p1
[sizeof "%rename" - 1] == '\t'))
1569 struct spec_list
*sl
;
1571 /* Get original name */
1572 p1
+= sizeof "%rename";
1573 while (*p1
== ' ' || *p1
== '\t')
1576 if (! ISALPHA ((unsigned char) *p1
))
1577 fatal ("specs %%rename syntax malformed after %ld characters",
1578 (long) (p1
- buffer
));
1581 while (*p2
&& !ISSPACE ((unsigned char) *p2
))
1584 if (*p2
!= ' ' && *p2
!= '\t')
1585 fatal ("specs %%rename syntax malformed after %ld characters",
1586 (long) (p2
- buffer
));
1590 while (*p2
== ' ' || *p2
== '\t')
1593 if (! ISALPHA ((unsigned char) *p2
))
1594 fatal ("specs %%rename syntax malformed after %ld characters",
1595 (long) (p2
- buffer
));
1597 /* Get new spec name. */
1599 while (*p3
&& !ISSPACE ((unsigned char) *p3
))
1603 fatal ("specs %%rename syntax malformed after %ld characters",
1604 (long) (p3
- buffer
));
1607 for (sl
= specs
; sl
; sl
= sl
->next
)
1608 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1612 fatal ("specs %s spec was not found to be renamed", p1
);
1614 if (strcmp (p1
, p2
) == 0)
1619 notice ("rename spec %s to %s\n", p1
, p2
);
1621 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1625 set_spec (p2
, *(sl
->ptr_spec
));
1627 free ((PTR
) *(sl
->ptr_spec
));
1629 *(sl
->ptr_spec
) = "";
1634 fatal ("specs unknown %% command after %ld characters",
1635 (long) (p1
- buffer
));
1638 /* Find the colon that should end the suffix. */
1640 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1643 /* The colon shouldn't be missing. */
1645 fatal ("specs file malformed after %ld characters",
1646 (long) (p1
- buffer
));
1648 /* Skip back over trailing whitespace. */
1650 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1653 /* Copy the suffix to a string. */
1654 suffix
= save_string (p
, p2
- p
);
1655 /* Find the next line. */
1656 p
= skip_whitespace (p1
+ 1);
1658 fatal ("specs file malformed after %ld characters",
1659 (long) (p
- buffer
));
1662 /* Find next blank line or end of string. */
1663 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1666 /* Specs end at the blank line and do not include the newline. */
1667 spec
= save_string (p
, p1
- p
);
1670 /* Delete backslash-newline sequences from the spec. */
1675 if (in
[0] == '\\' && in
[1] == '\n')
1677 else if (in
[0] == '#')
1678 while (*in
&& *in
!= '\n')
1686 if (suffix
[0] == '*')
1688 if (! strcmp (suffix
, "*link_command"))
1689 link_command_spec
= spec
;
1691 set_spec (suffix
+ 1, spec
);
1695 /* Add this pair to the vector. */
1697 = ((struct compiler
*)
1698 xrealloc (compilers
,
1699 (n_compilers
+ 2) * sizeof (struct compiler
)));
1701 compilers
[n_compilers
].suffix
= suffix
;
1702 compilers
[n_compilers
].spec
= spec
;
1704 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1708 link_command_spec
= spec
;
1711 if (link_command_spec
== 0)
1712 fatal ("spec file has no spec for linking");
1715 /* Record the names of temporary files we tell compilers to write,
1716 and delete them at the end of the run. */
1718 /* This is the common prefix we use to make temp file names.
1719 It is chosen once for each run of this program.
1720 It is substituted into a spec by %g or %j.
1721 Thus, all temp file names contain this prefix.
1722 In practice, all temp file names start with this prefix.
1724 This prefix comes from the envvar TMPDIR if it is defined;
1725 otherwise, from the P_tmpdir macro if that is defined;
1726 otherwise, in /usr/tmp or /tmp;
1727 or finally the current directory if all else fails. */
1729 static const char *temp_filename
;
1731 /* Length of the prefix. */
1733 static int temp_filename_length
;
1735 /* Define the list of temporary files to delete. */
1740 struct temp_file
*next
;
1743 /* Queue of files to delete on success or failure of compilation. */
1744 static struct temp_file
*always_delete_queue
;
1745 /* Queue of files to delete on failure of compilation. */
1746 static struct temp_file
*failure_delete_queue
;
1748 /* Record FILENAME as a file to be deleted automatically.
1749 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1750 otherwise delete it in any case.
1751 FAIL_DELETE nonzero means delete it if a compilation step fails;
1752 otherwise delete it in any case. */
1755 record_temp_file (filename
, always_delete
, fail_delete
)
1756 const char *filename
;
1760 register char *const name
= xstrdup (filename
);
1764 register struct temp_file
*temp
;
1765 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1766 if (! strcmp (name
, temp
->name
))
1769 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1770 temp
->next
= always_delete_queue
;
1772 always_delete_queue
= temp
;
1779 register struct temp_file
*temp
;
1780 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1781 if (! strcmp (name
, temp
->name
))
1784 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1785 temp
->next
= failure_delete_queue
;
1787 failure_delete_queue
= temp
;
1793 /* Delete all the temporary files whose names we previously recorded. */
1796 delete_if_ordinary (name
)
1803 printf ("Delete %s? (y or n) ", name
);
1807 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1810 if (i
== 'y' || i
== 'Y')
1812 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1813 if (unlink (name
) < 0)
1815 perror_with_name (name
);
1819 delete_temp_files ()
1821 register struct temp_file
*temp
;
1823 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1824 delete_if_ordinary (temp
->name
);
1825 always_delete_queue
= 0;
1828 /* Delete all the files to be deleted on error. */
1831 delete_failure_queue ()
1833 register struct temp_file
*temp
;
1835 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1836 delete_if_ordinary (temp
->name
);
1840 clear_failure_queue ()
1842 failure_delete_queue
= 0;
1845 /* Routine to add variables to the environment. We do this to pass
1846 the pathname of the gcc driver, and the directories search to the
1847 collect2 program, which is being run as ld. This way, we can be
1848 sure of executing the right compiler when collect2 wants to build
1849 constructors and destructors. Since the environment variables we
1850 use come from an obstack, we don't have to worry about allocating
1859 #ifndef VMS /* nor about VMS */
1861 extern char **environ
;
1862 char **old_environ
= environ
;
1866 int str_len
= strlen (str
);
1870 while ((ch
= *p
++) != '\0' && ch
!= '=')
1876 /* Search for replacing an existing environment variable, and
1877 count the number of total environment variables. */
1878 for (envp
= old_environ
; *envp
; envp
++)
1881 if (!strncmp (str
, *envp
, name_len
))
1888 /* Add a new environment variable */
1889 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+ 2));
1891 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1892 sizeof (char *) * (num_envs
+ 1));
1897 #endif /* HAVE_PUTENV */
1899 /* Build a list of search directories from PATHS.
1900 PREFIX is a string to prepend to the list.
1901 If CHECK_DIR_P is non-zero we ensure the directory exists.
1902 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1903 It is also used by the --print-search-dirs flag. */
1906 build_search_list (paths
, prefix
, check_dir_p
)
1907 struct path_prefix
*paths
;
1911 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1913 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1914 int first_time
= TRUE
;
1915 struct prefix_list
*pprefix
;
1917 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1918 obstack_1grow (&collect_obstack
, '=');
1920 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1922 int len
= strlen (pprefix
->prefix
);
1926 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1929 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1932 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1933 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1936 if (just_machine_suffix
1937 && pprefix
->require_machine_suffix
== 2
1939 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1942 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1945 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1946 obstack_grow (&collect_obstack
, just_machine_suffix
,
1950 if (! pprefix
->require_machine_suffix
)
1953 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1956 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1960 obstack_1grow (&collect_obstack
, '\0');
1961 return obstack_finish (&collect_obstack
);
1964 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1968 putenv_from_prefixes (paths
, env_var
)
1969 struct path_prefix
*paths
;
1970 const char *env_var
;
1972 putenv (build_search_list (paths
, env_var
, 1));
1977 /* FIXME: the location independence code for VMS is hairier than this,
1978 and hasn't been written. */
1980 /* Split a filename into component directories. */
1983 split_directories (name
, ptr_num_dirs
)
1992 /* Count the number of directories. Special case MSDOS disk names as part
1993 of the initial directory. */
1995 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1996 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2001 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2003 while ((ch
= *p
++) != '\0')
2005 if (IS_DIR_SEPARATOR (ch
))
2008 while (IS_DIR_SEPARATOR (*p
))
2013 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2015 /* Now copy the directory parts. */
2018 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2019 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2021 dirs
[num_dirs
++] = save_string (p
, 3);
2024 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2027 while ((ch
= *p
++) != '\0')
2029 if (IS_DIR_SEPARATOR (ch
))
2031 while (IS_DIR_SEPARATOR (*p
))
2034 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2040 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2042 dirs
[num_dirs
] = NULL_PTR
;
2044 *ptr_num_dirs
= num_dirs
;
2049 /* Release storage held by split directories. */
2052 free_split_directories (dirs
)
2057 while (dirs
[i
] != NULL_PTR
)
2060 free ((char *) dirs
);
2063 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2064 to PREFIX starting with the directory portion of PROGNAME and a relative
2065 pathname of the difference between BIN_PREFIX and PREFIX.
2067 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2068 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2069 function will return /red/green/blue/../omega.
2071 If no relative prefix can be found, return NULL. */
2074 make_relative_prefix (progname
, bin_prefix
, prefix
)
2075 const char *progname
;
2076 const char *bin_prefix
;
2079 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2080 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2083 prog_dirs
= split_directories (progname
, &prog_num
);
2084 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2086 /* If there is no full pathname, try to find the program by checking in each
2087 of the directories specified in the PATH environment variable. */
2092 GET_ENV_PATH_LIST (temp
, "PATH");
2095 char *startp
, *endp
;
2096 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2098 startp
= endp
= temp
;
2101 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2106 nstore
[1] = DIR_SEPARATOR
;
2111 strncpy (nstore
, startp
, endp
- startp
);
2112 if (! IS_DIR_SEPARATOR (endp
[-1]))
2114 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2115 nstore
[endp
- startp
+ 1] = 0;
2118 nstore
[endp
- startp
] = 0;
2120 strcat (nstore
, progname
);
2121 if (! access (nstore
, X_OK
)
2122 #ifdef HAVE_EXECUTABLE_SUFFIX
2123 || ! access (strcat (nstore
, EXECUTABLE_SUFFIX
), X_OK
)
2127 free_split_directories (prog_dirs
);
2129 prog_dirs
= split_directories (progname
, &prog_num
);
2135 endp
= startp
= endp
+ 1;
2143 /* Remove the program name from comparison of directory names. */
2146 /* Determine if the compiler is installed in the standard location, and if
2147 so, we don't need to specify relative directories. Also, if argv[0]
2148 doesn't contain any directory specifiers, there is not much we can do. */
2150 if (prog_num
== bin_num
)
2152 for (i
= 0; i
< bin_num
; i
++)
2154 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2158 if (prog_num
<= 0 || i
== bin_num
)
2161 free_split_directories (prog_dirs
);
2162 free_split_directories (bin_dirs
);
2163 prog_dirs
= bin_dirs
= (char **) 0;
2168 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2170 /* Find how many directories are in common between bin_prefix & prefix. */
2171 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2172 for (common
= 0; common
< n
; common
++)
2174 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2178 /* If there are no common directories, there can be no relative prefix. */
2181 free_split_directories (prog_dirs
);
2182 free_split_directories (bin_dirs
);
2183 free_split_directories (prefix_dirs
);
2187 /* Build up the pathnames in argv[0]. */
2188 for (i
= 0; i
< prog_num
; i
++)
2189 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2191 /* Now build up the ..'s. */
2192 for (i
= common
; i
< n
; i
++)
2194 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
) - 1);
2195 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2198 /* Put in directories to move over to prefix. */
2199 for (i
= common
; i
< prefix_num
; i
++)
2200 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2202 free_split_directories (prog_dirs
);
2203 free_split_directories (bin_dirs
);
2204 free_split_directories (prefix_dirs
);
2206 obstack_1grow (&obstack
, '\0');
2207 return obstack_finish (&obstack
);
2211 /* Check whether NAME can be accessed in MODE. This is like access,
2212 except that it never considers directories to be executable. */
2215 access_check (name
, mode
)
2223 if (stat (name
, &st
) < 0
2224 || S_ISDIR (st
.st_mode
))
2228 return access (name
, mode
);
2231 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2232 access to check permissions.
2233 Return 0 if not found, otherwise return its name, allocated with malloc. */
2236 find_a_file (pprefix
, name
, mode
)
2237 struct path_prefix
*pprefix
;
2242 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
2243 struct prefix_list
*pl
;
2244 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2246 #ifdef DEFAULT_ASSEMBLER
2247 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2248 return xstrdup (DEFAULT_ASSEMBLER
);
2251 #ifdef DEFAULT_LINKER
2252 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2253 return xstrdup (DEFAULT_LINKER
);
2257 len
+= strlen (machine_suffix
);
2259 temp
= xmalloc (len
);
2261 /* Determine the filename to execute (special case for absolute paths). */
2263 if (IS_DIR_SEPARATOR (*name
)
2264 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2265 /* Check for disk name on MS-DOS-based systems. */
2266 || (name
[0] && name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2270 if (access (name
, mode
) == 0)
2272 strcpy (temp
, name
);
2277 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2281 /* Some systems have a suffix for executable files.
2282 So try appending that first. */
2283 if (file_suffix
[0] != 0)
2285 strcpy (temp
, pl
->prefix
);
2286 strcat (temp
, machine_suffix
);
2287 strcat (temp
, name
);
2288 strcat (temp
, file_suffix
);
2289 if (access_check (temp
, mode
) == 0)
2291 if (pl
->used_flag_ptr
!= 0)
2292 *pl
->used_flag_ptr
= 1;
2297 /* Now try just the name. */
2298 strcpy (temp
, pl
->prefix
);
2299 strcat (temp
, machine_suffix
);
2300 strcat (temp
, name
);
2301 if (access_check (temp
, mode
) == 0)
2303 if (pl
->used_flag_ptr
!= 0)
2304 *pl
->used_flag_ptr
= 1;
2309 /* Certain prefixes are tried with just the machine type,
2310 not the version. This is used for finding as, ld, etc. */
2311 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2313 /* Some systems have a suffix for executable files.
2314 So try appending that first. */
2315 if (file_suffix
[0] != 0)
2317 strcpy (temp
, pl
->prefix
);
2318 strcat (temp
, just_machine_suffix
);
2319 strcat (temp
, name
);
2320 strcat (temp
, file_suffix
);
2321 if (access_check (temp
, mode
) == 0)
2323 if (pl
->used_flag_ptr
!= 0)
2324 *pl
->used_flag_ptr
= 1;
2329 strcpy (temp
, pl
->prefix
);
2330 strcat (temp
, just_machine_suffix
);
2331 strcat (temp
, name
);
2332 if (access_check (temp
, mode
) == 0)
2334 if (pl
->used_flag_ptr
!= 0)
2335 *pl
->used_flag_ptr
= 1;
2340 /* Certain prefixes can't be used without the machine suffix
2341 when the machine or version is explicitly specified. */
2342 if (! pl
->require_machine_suffix
)
2344 /* Some systems have a suffix for executable files.
2345 So try appending that first. */
2346 if (file_suffix
[0] != 0)
2348 strcpy (temp
, pl
->prefix
);
2349 strcat (temp
, name
);
2350 strcat (temp
, file_suffix
);
2351 if (access_check (temp
, mode
) == 0)
2353 if (pl
->used_flag_ptr
!= 0)
2354 *pl
->used_flag_ptr
= 1;
2359 strcpy (temp
, pl
->prefix
);
2360 strcat (temp
, name
);
2361 if (access_check (temp
, mode
) == 0)
2363 if (pl
->used_flag_ptr
!= 0)
2364 *pl
->used_flag_ptr
= 1;
2374 /* Ranking of prefixes in the sort list. -B prefixes are put before
2377 enum path_prefix_priority
2379 PREFIX_PRIORITY_B_OPT
,
2380 PREFIX_PRIORITY_LAST
2383 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2384 order according to PRIORITY. Within each PRIORITY, new entries are
2387 If WARN is nonzero, we will warn if no file is found
2388 through this prefix. WARN should point to an int
2389 which will be set to 1 if this entry is used.
2391 COMPONENT is the value to be passed to update_path.
2393 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2394 the complete value of machine_suffix.
2395 2 means try both machine_suffix and just_machine_suffix. */
2398 add_prefix (pprefix
, prefix
, component
, priority
, require_machine_suffix
, warn
)
2399 struct path_prefix
*pprefix
;
2401 const char *component
;
2402 /* enum prefix_priority */ int priority
;
2403 int require_machine_suffix
;
2406 struct prefix_list
*pl
, **prev
;
2409 for (prev
= &pprefix
->plist
;
2410 (*prev
) != NULL
&& (*prev
)->priority
<= priority
;
2411 prev
= &(*prev
)->next
)
2414 /* Keep track of the longest prefix */
2416 prefix
= update_path (prefix
, component
);
2417 len
= strlen (prefix
);
2418 if (len
> pprefix
->max_len
)
2419 pprefix
->max_len
= len
;
2421 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2422 pl
->prefix
= save_string (prefix
, len
);
2423 pl
->require_machine_suffix
= require_machine_suffix
;
2424 pl
->used_flag_ptr
= warn
;
2425 pl
->priority
= priority
;
2429 /* Insert after PREV */
2434 /* Execute the command specified by the arguments on the current line of spec.
2435 When using pipes, this includes several piped-together commands
2436 with `|' between them.
2438 Return 0 if successful, -1 if failed. */
2444 int n_commands
; /* # of command. */
2448 const char *prog
; /* program name. */
2449 const char **argv
; /* vector of args. */
2450 int pid
; /* pid of process for this command. */
2453 struct command
*commands
; /* each command buffer with above info. */
2455 /* Count # of piped commands. */
2456 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2457 if (strcmp (argbuf
[i
], "|") == 0)
2460 /* Get storage for each command. */
2461 commands
= (struct command
*) alloca (n_commands
* sizeof (struct command
));
2463 /* Split argbuf into its separate piped processes,
2464 and record info about each one.
2465 Also search for the programs that are to be run. */
2467 commands
[0].prog
= argbuf
[0]; /* first command. */
2468 commands
[0].argv
= &argbuf
[0];
2469 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2472 commands
[0].argv
[0] = string
;
2474 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2475 if (strcmp (argbuf
[i
], "|") == 0)
2476 { /* each command. */
2477 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2478 fatal ("-pipe not supported");
2480 argbuf
[i
] = 0; /* termination of command args. */
2481 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2482 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2483 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2485 commands
[n_commands
].argv
[0] = string
;
2489 argbuf
[argbuf_index
] = 0;
2491 /* If -v, print what we are about to do, and maybe query. */
2495 /* For help listings, put a blank line between sub-processes. */
2496 if (print_help_list
)
2497 fputc ('\n', stderr
);
2499 /* Print each piped command as a separate line. */
2500 for (i
= 0; i
< n_commands
; i
++)
2502 const char *const *j
;
2504 for (j
= commands
[i
].argv
; *j
; j
++)
2505 fprintf (stderr
, " %s", *j
);
2507 /* Print a pipe symbol after all but the last command. */
2508 if (i
+ 1 != n_commands
)
2509 fprintf (stderr
, " |");
2510 fprintf (stderr
, "\n");
2514 notice ("\nGo ahead? (y or n) ");
2518 while (getchar () != '\n')
2521 if (i
!= 'y' && i
!= 'Y')
2526 /* Run each piped subprocess. */
2528 for (i
= 0; i
< n_commands
; i
++)
2530 char *errmsg_fmt
, *errmsg_arg
;
2531 const char *string
= commands
[i
].argv
[0];
2533 /* For some bizarre reason, the second argument of execvp() is
2534 char *const *, not const char *const *. */
2535 commands
[i
].pid
= pexecute (string
, (char *const *) commands
[i
].argv
,
2536 programname
, temp_filename
,
2537 &errmsg_fmt
, &errmsg_arg
,
2538 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2539 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2540 | (string
== commands
[i
].prog
2541 ? PEXECUTE_SEARCH
: 0)
2542 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2544 if (commands
[i
].pid
== -1)
2545 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2547 if (string
!= commands
[i
].prog
)
2548 free ((PTR
) string
);
2553 /* Wait for all the subprocesses to finish.
2554 We don't care what order they finish in;
2555 we know that N_COMMANDS waits will get them all.
2556 Ignore subprocesses that we don't know about,
2557 since they can be spawned by the process that exec'ed us. */
2561 #ifdef HAVE_GETRUSAGE
2563 double ut
= 0.0, st
= 0.0;
2566 for (i
= 0; i
< n_commands
;)
2572 pid
= pwait (commands
[i
].pid
, &status
, 0);
2576 #ifdef HAVE_GETRUSAGE
2579 /* getrusage returns the total resource usage of all children
2580 up to now. Copy the previous values into prus, get the
2581 current statistics, then take the difference. */
2584 getrusage (RUSAGE_CHILDREN
, &rus
);
2585 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2586 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2587 ut
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2589 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2590 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2591 st
= (double) d
.tv_sec
+ (double) d
.tv_usec
/ 1.0e6
;
2595 for (j
= 0; j
< n_commands
; j
++)
2596 if (commands
[j
].pid
== pid
)
2599 if (WIFSIGNALED (status
))
2602 /* SIGPIPE is a special case. It happens in -pipe mode
2603 when the compiler dies before the preprocessor is
2604 done, or the assembler dies before the compiler is
2605 done. There's generally been an error already, and
2606 this is just fallout. So don't generate another error
2607 unless we would otherwise have succeeded. */
2608 if (WTERMSIG (status
) == SIGPIPE
2609 && (signal_count
|| greatest_status
>= MIN_FATAL_STATUS
))
2614 Internal error: %s (program %s)\n\
2615 Please submit a full bug report.\n\
2616 See %s for instructions.",
2617 strsignal (WTERMSIG (status
)), commands
[j
].prog
,
2622 else if (WIFEXITED (status
)
2623 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2625 if (WEXITSTATUS (status
) > greatest_status
)
2626 greatest_status
= WEXITSTATUS (status
);
2629 #ifdef HAVE_GETRUSAGE
2630 if (report_times
&& ut
+ st
!= 0)
2631 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2640 /* Find all the switches given to us
2641 and make a vector describing them.
2642 The elements of the vector are strings, one per switch given.
2643 If a switch uses following arguments, then the `part1' field
2644 is the switch itself and the `args' field
2645 is a null-terminated vector containing the following arguments.
2646 The `live_cond' field is:
2648 1 if the switch is true in a conditional spec,
2649 -1 if false (overridden by a later switch)
2650 -2 if this switch should be ignored (used in %{<S})
2651 The `validated' field is nonzero if any spec has looked at this switch;
2652 if it remains zero at the end of the run, it must be meaningless. */
2655 #define SWITCH_FALSE -1
2656 #define SWITCH_IGNORE -2
2657 #define SWITCH_LIVE 1
2667 static struct switchstr
*switches
;
2669 static int n_switches
;
2674 const char *language
;
2677 /* Also a vector of input files specified. */
2679 static struct infile
*infiles
;
2681 static int n_infiles
;
2683 /* This counts the number of libraries added by lang_specific_driver, so that
2684 we can tell if there were any user supplied any files or libraries. */
2686 static int added_libraries
;
2688 /* And a vector of corresponding output files is made up later. */
2690 static const char **outfiles
;
2692 /* Used to track if none of the -B paths are used. */
2695 /* Used to track if standard path isn't used and -b or -V is specified. */
2696 static int warn_std
;
2698 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2699 static int *warn_std_ptr
= 0;
2701 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2703 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2704 is true if we should look for an executable suffix as well. */
2707 convert_filename (name
, do_exe
)
2717 len
= strlen (name
);
2719 #ifdef HAVE_OBJECT_SUFFIX
2720 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2722 && name
[len
- 2] == '.'
2723 && name
[len
- 1] == 'o')
2725 obstack_grow (&obstack
, name
, len
- 2);
2726 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2727 name
= obstack_finish (&obstack
);
2731 #ifdef HAVE_EXECUTABLE_SUFFIX
2732 /* If there is no filetype, make it the executable suffix (which includes
2733 the "."). But don't get confused if we have just "-o". */
2734 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2737 for (i
= len
- 1; i
>= 0; i
--)
2738 if (IS_DIR_SEPARATOR (name
[i
]))
2741 for (i
++; i
< len
; i
++)
2745 obstack_grow (&obstack
, name
, len
);
2746 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2747 name
= obstack_finish (&obstack
);
2754 /* Display the command line switches accepted by gcc. */
2758 printf (_("Usage: %s [options] file...\n"), programname
);
2759 fputs (_("Options:\n"), stdout
);
2761 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout
);
2762 fputs (_(" --help Display this information\n"), stdout
);
2764 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout
);
2765 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout
);
2766 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout
);
2767 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout
);
2768 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout
);
2769 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout
);
2770 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout
);
2771 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout
);
2772 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout
);
2774 -print-multi-lib Display the mapping between command line options and\n\
2775 multiple library search directories\n"), stdout
);
2776 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout
);
2777 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout
);
2778 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout
);
2779 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout
);
2780 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout
);
2781 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout
);
2782 fputs (_(" -time Time the execution of each subprocess\n"), stdout
);
2783 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout
);
2784 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout
);
2785 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout
);
2786 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout
);
2787 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout
);
2788 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout
);
2789 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout
);
2790 fputs (_(" -S Compile only; do not assemble or link\n"), stdout
);
2791 fputs (_(" -c Compile and assemble, but do not link\n"), stdout
);
2792 fputs (_(" -o <file> Place the output into <file>\n"), stdout
);
2794 -x <language> Specify the language of the following input files\n\
2795 Permissable languages include: c c++ assembler none\n\
2796 'none' means revert to the default behaviour of\n\
2797 guessing the language based on the file's extension\n\
2801 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2802 the various sub-processes invoked by %s. In order to pass other options\n\
2803 on to these processes the -W<letter> options must be used.\n\
2806 /* The rest of the options are displayed by invocations of the various
2811 add_preprocessor_option (option
, len
)
2815 n_preprocessor_options
++;
2817 if (! preprocessor_options
)
2818 preprocessor_options
2819 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2821 preprocessor_options
2822 = (char **) xrealloc (preprocessor_options
,
2823 n_preprocessor_options
* sizeof (char *));
2825 preprocessor_options
[n_preprocessor_options
- 1] =
2826 save_string (option
, len
);
2830 add_assembler_option (option
, len
)
2834 n_assembler_options
++;
2836 if (! assembler_options
)
2838 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2841 = (char **) xrealloc (assembler_options
,
2842 n_assembler_options
* sizeof (char *));
2844 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2848 add_linker_option (option
, len
)
2854 if (! linker_options
)
2856 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2859 = (char **) xrealloc (linker_options
,
2860 n_linker_options
* sizeof (char *));
2862 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2865 /* Create the vector `switches' and its contents.
2866 Store its length in `n_switches'. */
2869 process_command (argc
, argv
)
2871 const char *const *argv
;
2876 const char *spec_lang
= 0;
2877 int last_language_n_infiles
;
2880 int lang_n_infiles
= 0;
2881 #ifdef MODIFY_TARGET_NAME
2882 int is_modify_target_name
;
2885 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2889 added_libraries
= 0;
2891 /* Figure compiler version from version string. */
2893 compiler_version
= temp1
= xstrdup (version_string
);
2895 for (; *temp1
; ++temp1
)
2904 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2905 see if we can create it from the pathname specified in argv[0]. */
2908 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2909 if (!gcc_exec_prefix
)
2911 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
2912 standard_exec_prefix
);
2913 if (gcc_exec_prefix
)
2914 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL_PTR
));
2918 if (gcc_exec_prefix
)
2920 int len
= strlen (gcc_exec_prefix
);
2921 if (len
> (int) sizeof ("/lib/gcc-lib/") - 1
2922 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
2924 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2925 if (IS_DIR_SEPARATOR (*temp
)
2926 && strncmp (temp
+ 1, "lib", 3) == 0
2927 && IS_DIR_SEPARATOR (temp
[4])
2928 && strncmp (temp
+ 5, "gcc-lib", 7) == 0)
2929 len
-= sizeof ("/lib/gcc-lib/") - 1;
2932 set_std_prefix (gcc_exec_prefix
, len
);
2933 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC",
2934 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
2935 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC",
2936 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
2939 /* COMPILER_PATH and LIBRARY_PATH have values
2940 that are lists of directory names with colons. */
2942 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2945 const char *startp
, *endp
;
2946 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2948 startp
= endp
= temp
;
2951 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2953 strncpy (nstore
, startp
, endp
- startp
);
2955 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2956 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2958 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2959 nstore
[endp
- startp
+ 1] = 0;
2962 nstore
[endp
- startp
] = 0;
2963 add_prefix (&exec_prefixes
, nstore
, 0,
2964 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
2965 add_prefix (&include_prefixes
,
2966 concat (nstore
, "include", NULL_PTR
),
2967 0, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
2970 endp
= startp
= endp
+ 1;
2977 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
2978 if (temp
&& *cross_compile
== '0')
2980 const char *startp
, *endp
;
2981 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2983 startp
= endp
= temp
;
2986 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2988 strncpy (nstore
, startp
, endp
- startp
);
2990 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2991 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2993 nstore
[endp
- startp
] = DIR_SEPARATOR
;
2994 nstore
[endp
- startp
+ 1] = 0;
2997 nstore
[endp
- startp
] = 0;
2998 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2999 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3002 endp
= startp
= endp
+ 1;
3009 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3010 GET_ENV_PATH_LIST (temp
, "LPATH");
3011 if (temp
&& *cross_compile
== '0')
3013 const char *startp
, *endp
;
3014 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3016 startp
= endp
= temp
;
3019 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3021 strncpy (nstore
, startp
, endp
- startp
);
3023 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3024 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3026 nstore
[endp
- startp
] = DIR_SEPARATOR
;
3027 nstore
[endp
- startp
+ 1] = 0;
3030 nstore
[endp
- startp
] = 0;
3031 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3032 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3035 endp
= startp
= endp
+ 1;
3042 /* Convert new-style -- options to old-style. */
3043 translate_options (&argc
, &argv
);
3045 /* Do language-specific adjustment/addition of flags. */
3046 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3048 /* Scan argv twice. Here, the first time, just count how many switches
3049 there will be in their vector, and how many input files in theirs.
3050 Also parse any switches that determine the configuration name, such as -b.
3051 Here we also parse the switches that cc itself uses (e.g. -v). */
3053 for (i
= 1; i
< argc
; i
++)
3055 if (! strcmp (argv
[i
], "-dumpspecs"))
3057 struct spec_list
*sl
;
3059 for (sl
= specs
; sl
; sl
= sl
->next
)
3060 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3061 if (link_command_spec
)
3062 printf ("*link_command:\n%s\n\n", link_command_spec
);
3065 else if (! strcmp (argv
[i
], "-dumpversion"))
3067 printf ("%s\n", spec_version
);
3070 else if (! strcmp (argv
[i
], "-dumpmachine"))
3072 printf ("%s\n", spec_machine
);
3075 else if (strcmp (argv
[i
], "-fhelp") == 0)
3077 /* translate_options () has turned --help into -fhelp. */
3078 print_help_list
= 1;
3080 /* We will be passing a dummy file on to the sub-processes. */
3084 add_preprocessor_option ("--help", 6);
3085 add_assembler_option ("--help", 6);
3086 add_linker_option ("--help", 6);
3088 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3090 pass_exit_codes
= 1;
3093 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3094 print_search_dirs
= 1;
3095 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3096 print_file_name
= "libgcc.a";
3097 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3098 print_file_name
= argv
[i
] + 17;
3099 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3100 print_prog_name
= argv
[i
] + 17;
3101 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3102 print_multi_lib
= 1;
3103 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3104 print_multi_directory
= 1;
3105 else if (! strncmp (argv
[i
], "-Wa,", 4))
3108 /* Pass the rest of this option to the assembler. */
3110 /* Split the argument at commas. */
3112 for (j
= 4; argv
[i
][j
]; j
++)
3113 if (argv
[i
][j
] == ',')
3115 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3119 /* Record the part after the last comma. */
3120 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3122 else if (! strncmp (argv
[i
], "-Wp,", 4))
3125 /* Pass the rest of this option to the preprocessor. */
3127 /* Split the argument at commas. */
3129 for (j
= 4; argv
[i
][j
]; j
++)
3130 if (argv
[i
][j
] == ',')
3132 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3136 /* Record the part after the last comma. */
3137 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3139 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3140 /* The +e options to the C++ front-end. */
3142 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3145 /* Split the argument at commas. */
3146 for (j
= 3; argv
[i
][j
]; j
++)
3147 n_infiles
+= (argv
[i
][j
] == ',');
3149 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3152 fatal ("argument to `-Xlinker' is missing");
3157 else if (strncmp (argv
[i
], "-l", 2) == 0)
3159 else if (strcmp (argv
[i
], "-save-temps") == 0)
3161 save_temps_flag
= 1;
3164 else if (strcmp (argv
[i
], "-specs") == 0)
3166 struct user_specs
*user
= (struct user_specs
*)
3167 xmalloc (sizeof (struct user_specs
));
3169 fatal ("argument to `-specs' is missing");
3171 user
->next
= (struct user_specs
*) 0;
3172 user
->filename
= argv
[i
];
3173 if (user_specs_tail
)
3174 user_specs_tail
->next
= user
;
3176 user_specs_head
= user
;
3177 user_specs_tail
= user
;
3179 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3181 struct user_specs
*user
= (struct user_specs
*)
3182 xmalloc (sizeof (struct user_specs
));
3183 if (strlen (argv
[i
]) == 7)
3184 fatal ("argument to `-specs=' is missing");
3186 user
->next
= (struct user_specs
*) 0;
3187 user
->filename
= argv
[i
] + 7;
3188 if (user_specs_tail
)
3189 user_specs_tail
->next
= user
;
3191 user_specs_head
= user
;
3192 user_specs_tail
= user
;
3194 else if (strcmp (argv
[i
], "-time") == 0)
3196 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3198 register const char *p
= &argv
[i
][1];
3199 register int c
= *p
;
3205 if (p
[1] == 0 && i
+ 1 == argc
)
3206 fatal ("argument to `-b' is missing");
3208 spec_machine
= argv
[++i
];
3210 spec_machine
= p
+ 1;
3212 warn_std_ptr
= &warn_std
;
3218 if (p
[1] == 0 && i
+ 1 == argc
)
3219 fatal ("argument to `-B' is missing");
3225 /* As a kludge, if the arg is "[foo/]stageN/", just
3226 add "[foo/]include" to the include prefix. */
3227 int len
= strlen (value
);
3230 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3231 && strncmp (value
+ len
- 7, "stage", 5) == 0
3232 && ISDIGIT (value
[len
- 2])
3233 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3236 add_prefix (&include_prefixes
, "include", NULL_PTR
,
3237 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3240 char *string
= xmalloc (len
+ 1);
3241 strncpy (string
, value
, len
-7);
3242 strcpy (string
+len
-7, "include");
3243 add_prefix (&include_prefixes
, string
, NULL_PTR
,
3244 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3248 add_prefix (&exec_prefixes
, value
, NULL_PTR
,
3249 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3250 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
3251 PREFIX_PRIORITY_B_OPT
, 0, &warn_B
);
3252 add_prefix (&include_prefixes
, concat (value
, "include",
3255 PREFIX_PRIORITY_B_OPT
, 0, NULL_PTR
);
3260 case 'v': /* Print our subcommands and print versions. */
3262 /* If they do anything other than exactly `-v', don't set
3263 verbose_flag; rather, continue on to give the error. */
3271 if (p
[1] == 0 && i
+ 1 == argc
)
3272 fatal ("argument to `-V' is missing");
3274 spec_version
= argv
[++i
];
3276 spec_version
= p
+ 1;
3277 compiler_version
= spec_version
;
3278 warn_std_ptr
= &warn_std
;
3280 /* Validate the version number. Use the same checks
3281 done when inserting it into a spec.
3283 The format of the version string is
3284 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3286 const char *v
= compiler_version
;
3288 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3289 while (! ISDIGIT (*v
))
3292 if (v
> compiler_version
&& v
[-1] != '-')
3293 fatal ("invalid version number format");
3295 /* Set V after the first period. */
3296 while (ISDIGIT (*v
))
3300 fatal ("invalid version number format");
3303 while (ISDIGIT (*v
))
3306 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3307 fatal ("invalid version number format");
3323 #if defined(HAVE_EXECUTABLE_SUFFIX)
3328 /* Forward scan, just in case -S or -c is specified
3335 if (argv
[j
][0] == '-')
3337 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3343 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3344 j
+= skip
- (argv
[j
][2] != 0);
3345 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3352 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3354 argv
[i
+ 1] = convert_filename (argv
[i
+ 1], ! have_c
);
3356 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3363 #ifdef MODIFY_TARGET_NAME
3364 is_modify_target_name
= 0;
3367 j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3368 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3371 = (char *) xmalloc (strlen (modify_target
[j
].str
)
3372 + strlen (spec_machine
));
3375 int made_addition
= 0;
3377 is_modify_target_name
= 1;
3378 for (p
= spec_machine
, q
= new_name
; *p
!= 0; )
3380 if (modify_target
[j
].add_del
== DELETE
3381 && (! strncmp (q
, modify_target
[j
].str
,
3382 strlen (modify_target
[j
].str
))))
3383 p
+= strlen (modify_target
[j
].str
);
3384 else if (modify_target
[j
].add_del
== ADD
3385 && ! made_addition
&& *p
== '-')
3387 for (r
= modify_target
[j
].str
; *r
!= 0; )
3395 spec_machine
= new_name
;
3398 if (is_modify_target_name
)
3404 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3405 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3406 else if (WORD_SWITCH_TAKES_ARG (p
))
3407 i
+= WORD_SWITCH_TAKES_ARG (p
);
3417 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3418 fatal ("cannot specify -o with -c or -S and multiple compilations");
3420 /* Set up the search paths before we go looking for config files. */
3422 /* These come before the md prefixes so that we will find gcc's subcommands
3423 (such as cpp) rather than those of the host system. */
3424 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3425 as well as trying the machine and the version. */
3427 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3428 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3429 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3430 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3431 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3432 PREFIX_PRIORITY_LAST
, 2, warn_std_ptr
);
3435 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3436 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3437 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3438 PREFIX_PRIORITY_LAST
, 1, warn_std_ptr
);
3440 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3441 dir_separator_str
, NULL_PTR
);
3443 /* If tooldir is relative, base it on exec_prefixes. A relative
3444 tooldir lets us move the installed tree as a unit.
3446 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3447 directories, so that we can search both the user specified directory
3448 and the standard place. */
3450 if (!IS_DIR_SEPARATOR (*tooldir_prefix
))
3452 if (gcc_exec_prefix
)
3454 char *gcc_exec_tooldir_prefix
3455 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3456 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3458 add_prefix (&exec_prefixes
,
3459 concat (gcc_exec_tooldir_prefix
, "bin",
3460 dir_separator_str
, NULL_PTR
),
3461 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3462 add_prefix (&startfile_prefixes
,
3463 concat (gcc_exec_tooldir_prefix
, "lib",
3464 dir_separator_str
, NULL_PTR
),
3465 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3468 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3469 dir_separator_str
, spec_version
,
3470 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3473 add_prefix (&exec_prefixes
,
3474 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3475 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3476 add_prefix (&startfile_prefixes
,
3477 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3478 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
3480 /* More prefixes are enabled in main, after we read the specs file
3481 and determine whether this is cross-compilation or not. */
3483 /* Then create the space for the vectors and scan again. */
3485 switches
= ((struct switchstr
*)
3486 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3487 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3490 last_language_n_infiles
= -1;
3492 /* This, time, copy the text of each switch and store a pointer
3493 to the copy in the vector of switches.
3494 Store all the infiles in their vector. */
3496 for (i
= 1; i
< argc
; i
++)
3498 /* Just skip the switches that were handled by the preceding loop. */
3499 #ifdef MODIFY_TARGET_NAME
3500 is_modify_target_name
= 0;
3502 for (j
= 0; j
< sizeof modify_target
/ sizeof modify_target
[0]; j
++)
3503 if (! strcmp (argv
[i
], modify_target
[j
].sw
))
3504 is_modify_target_name
= 1;
3506 if (is_modify_target_name
)
3510 if (! strncmp (argv
[i
], "-Wa,", 4))
3512 else if (! strncmp (argv
[i
], "-Wp,", 4))
3514 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3516 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3518 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3520 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3522 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3524 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3526 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3528 else if (strcmp (argv
[i
], "-fhelp") == 0)
3532 /* Create a dummy input file, so that we can pass --help on to
3533 the various sub-processes. */
3534 infiles
[n_infiles
].language
= "c";
3535 infiles
[n_infiles
++].name
= "help-dummy";
3537 /* Preserve the --help switch so that it can be caught by the
3539 switches
[n_switches
].part1
= "--help";
3540 switches
[n_switches
].args
= 0;
3541 switches
[n_switches
].live_cond
= SWITCH_OK
;
3542 switches
[n_switches
].validated
= 0;
3547 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3549 /* Compensate for the +e options to the C++ front-end;
3550 they're there simply for cfront call-compatibility. We do
3551 some magic in default_compilers to pass them down properly.
3552 Note we deliberately start at the `+' here, to avoid passing
3553 -e0 or -e1 down into the linker. */
3554 switches
[n_switches
].part1
= &argv
[i
][0];
3555 switches
[n_switches
].args
= 0;
3556 switches
[n_switches
].live_cond
= SWITCH_OK
;
3557 switches
[n_switches
].validated
= 0;
3560 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3563 /* Split the argument at commas. */
3565 for (j
= 4; argv
[i
][j
]; j
++)
3566 if (argv
[i
][j
] == ',')
3568 infiles
[n_infiles
].language
= "*";
3569 infiles
[n_infiles
++].name
3570 = save_string (argv
[i
] + prev
, j
- prev
);
3573 /* Record the part after the last comma. */
3574 infiles
[n_infiles
].language
= "*";
3575 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3577 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3579 infiles
[n_infiles
].language
= "*";
3580 infiles
[n_infiles
++].name
= argv
[++i
];
3582 else if (strncmp (argv
[i
], "-l", 2) == 0)
3584 infiles
[n_infiles
].language
= "*";
3585 infiles
[n_infiles
++].name
= argv
[i
];
3587 else if (strcmp (argv
[i
], "-specs") == 0)
3589 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3591 else if (strcmp (argv
[i
], "-time") == 0)
3593 else if ((save_temps_flag
|| report_times
)
3594 && strcmp (argv
[i
], "-pipe") == 0)
3596 /* -save-temps overrides -pipe, so that temp files are produced */
3597 if (save_temps_flag
)
3598 error ("Warning: -pipe ignored because -save-temps specified");
3599 /* -time overrides -pipe because we can't get correct stats when
3600 multiple children are running at once. */
3601 else if (report_times
)
3602 error ("Warning: -pipe ignored because -time specified");
3604 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3606 const char *p
= &argv
[i
][1];
3611 if (p
[1] == 0 && i
+ 1 == argc
)
3612 fatal ("argument to `-x' is missing");
3614 spec_lang
= argv
[++i
];
3617 if (! strcmp (spec_lang
, "none"))
3618 /* Suppress the warning if -xnone comes after the last input
3619 file, because alternate command interfaces like g++ might
3620 find it useful to place -xnone after each input file. */
3623 last_language_n_infiles
= n_infiles
;
3626 switches
[n_switches
].part1
= p
;
3627 /* Deal with option arguments in separate argv elements. */
3628 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3629 || WORD_SWITCH_TAKES_ARG (p
))
3632 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3636 /* Count only the option arguments in separate argv elements. */
3637 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3639 if (i
+ n_args
>= argc
)
3640 fatal ("argument to `-%s' is missing", p
);
3641 switches
[n_switches
].args
3642 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3644 switches
[n_switches
].args
[j
++] = argv
[++i
];
3645 /* Null-terminate the vector. */
3646 switches
[n_switches
].args
[j
] = 0;
3648 else if (strchr (switches_need_spaces
, c
))
3650 /* On some systems, ld cannot handle some options without
3651 a space. So split the option from its argument. */
3652 char *part1
= (char *) xmalloc (2);
3657 switches
[n_switches
].part1
= part1
;
3658 switches
[n_switches
].args
3659 = (const char **) xmalloc (2 * sizeof (const char *));
3660 switches
[n_switches
].args
[0] = tmp
= xmalloc (strlen (p
));
3661 strcpy (tmp
, &p
[1]);
3662 switches
[n_switches
].args
[1] = 0;
3665 switches
[n_switches
].args
= 0;
3667 switches
[n_switches
].live_cond
= SWITCH_OK
;
3668 switches
[n_switches
].validated
= 0;
3669 /* This is always valid, since gcc.c itself understands it. */
3670 if (!strcmp (p
, "save-temps"))
3671 switches
[n_switches
].validated
= 1;
3674 char ch
= switches
[n_switches
].part1
[0];
3675 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3676 switches
[n_switches
].validated
= 1;
3682 #ifdef HAVE_OBJECT_SUFFIX
3683 argv
[i
] = convert_filename (argv
[i
], 0);
3686 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3688 perror_with_name (argv
[i
]);
3693 infiles
[n_infiles
].language
= spec_lang
;
3694 infiles
[n_infiles
++].name
= argv
[i
];
3699 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3700 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3702 switches
[n_switches
].part1
= 0;
3703 infiles
[n_infiles
].name
= 0;
3706 /* Process a spec string, accumulating and running commands. */
3708 /* These variables describe the input file name.
3709 input_file_number is the index on outfiles of this file,
3710 so that the output file name can be stored for later use by %o.
3711 input_basename is the start of the part of the input file
3712 sans all directory names, and basename_length is the number
3713 of characters starting there excluding the suffix .c or whatever. */
3715 const char *input_filename
;
3716 static int input_file_number
;
3717 size_t input_filename_length
;
3718 static int basename_length
;
3719 static int suffixed_basename_length
;
3720 static const char *input_basename
;
3721 static const char *input_suffix
;
3723 /* These are variables used within do_spec and do_spec_1. */
3725 /* Nonzero if an arg has been started and not yet terminated
3726 (with space, tab or newline). */
3727 static int arg_going
;
3729 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3730 is a temporary file name. */
3731 static int delete_this_arg
;
3733 /* Nonzero means %w has been seen; the next arg to be terminated
3734 is the output file name of this compilation. */
3735 static int this_is_output_file
;
3737 /* Nonzero means %s has been seen; the next arg to be terminated
3738 is the name of a library file and we should try the standard
3739 search dirs for it. */
3740 static int this_is_library_file
;
3742 /* Nonzero means that the input of this command is coming from a pipe. */
3743 static int input_from_pipe
;
3745 /* Process the spec SPEC and run the commands specified therein.
3746 Returns 0 if the spec is successfully processed; -1 if failed. */
3756 delete_this_arg
= 0;
3757 this_is_output_file
= 0;
3758 this_is_library_file
= 0;
3759 input_from_pipe
= 0;
3761 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3763 /* Force out any unfinished command.
3764 If -pipe, this forces out the last command if it ended in `|'. */
3767 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3770 if (argbuf_index
> 0)
3777 /* Process the sub-spec SPEC as a portion of a larger spec.
3778 This is like processing a whole spec except that we do
3779 not initialize at the beginning and we do not supply a
3780 newline by default at the end.
3781 INSWITCH nonzero means don't process %-sequences in SPEC;
3782 in this case, % is treated as an ordinary character.
3783 This is used while substituting switches.
3784 INSWITCH nonzero also causes SPC not to terminate an argument.
3786 Value is zero unless a line was finished
3787 and the command on that line reported an error. */
3790 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3793 const char *soft_matched_part
;
3795 register const char *p
= spec
;
3802 /* If substituting a switch, treat all chars like letters.
3803 Otherwise, NL, SPC, TAB and % are special. */
3804 switch (inswitch
? 'a' : c
)
3807 /* End of line: finish any pending argument,
3808 then run the pending command if one has been started. */
3811 obstack_1grow (&obstack
, 0);
3812 string
= obstack_finish (&obstack
);
3813 if (this_is_library_file
)
3814 string
= find_file (string
);
3815 store_arg (string
, delete_this_arg
, this_is_output_file
);
3816 if (this_is_output_file
)
3817 outfiles
[input_file_number
] = string
;
3821 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3823 for (i
= 0; i
< n_switches
; i
++)
3824 if (!strcmp (switches
[i
].part1
, "pipe"))
3827 /* A `|' before the newline means use a pipe here,
3828 but only if -pipe was specified.
3829 Otherwise, execute now and don't pass the `|' as an arg. */
3832 input_from_pipe
= 1;
3833 switches
[i
].validated
= 1;
3840 if (argbuf_index
> 0)
3846 /* Reinitialize for a new command, and for a new argument. */
3849 delete_this_arg
= 0;
3850 this_is_output_file
= 0;
3851 this_is_library_file
= 0;
3852 input_from_pipe
= 0;
3856 /* End any pending argument. */
3859 obstack_1grow (&obstack
, 0);
3860 string
= obstack_finish (&obstack
);
3861 if (this_is_library_file
)
3862 string
= find_file (string
);
3863 store_arg (string
, delete_this_arg
, this_is_output_file
);
3864 if (this_is_output_file
)
3865 outfiles
[input_file_number
] = string
;
3869 obstack_1grow (&obstack
, c
);
3875 /* Space or tab ends an argument if one is pending. */
3878 obstack_1grow (&obstack
, 0);
3879 string
= obstack_finish (&obstack
);
3880 if (this_is_library_file
)
3881 string
= find_file (string
);
3882 store_arg (string
, delete_this_arg
, this_is_output_file
);
3883 if (this_is_output_file
)
3884 outfiles
[input_file_number
] = string
;
3886 /* Reinitialize for a new argument. */
3888 delete_this_arg
= 0;
3889 this_is_output_file
= 0;
3890 this_is_library_file
= 0;
3897 fatal ("Invalid specification! Bug in cc.");
3900 obstack_grow (&obstack
, input_basename
, basename_length
);
3905 obstack_grow (&obstack
, input_basename
, suffixed_basename_length
);
3910 delete_this_arg
= 2;
3913 /* Dump out the directories specified with LIBRARY_PATH,
3914 followed by the absolute directories
3915 that we search for startfiles. */
3918 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3919 size_t bufsize
= 100;
3920 char *buffer
= (char *) xmalloc (bufsize
);
3923 for (; pl
; pl
= pl
->next
)
3925 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3926 /* Used on systems which record the specified -L dirs
3927 and use them to search for dynamic linking. */
3928 /* Relative directories always come from -B,
3929 and it is better not to use them for searching
3930 at run time. In particular, stage1 loses. */
3931 if (!IS_DIR_SEPARATOR (pl
->prefix
[0]))
3934 /* Try subdirectory if there is one. */
3935 if (multilib_dir
!= NULL
)
3939 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3941 bufsize
= (strlen (pl
->prefix
)
3942 + strlen (machine_suffix
)) * 2 + 1;
3943 buffer
= (char *) xrealloc (buffer
, bufsize
);
3944 strcpy (buffer
, pl
->prefix
);
3945 strcat (buffer
, machine_suffix
);
3946 if (is_directory (buffer
, multilib_dir
, 1))
3948 do_spec_1 ("-L", 0, NULL_PTR
);
3949 #ifdef SPACE_AFTER_L_OPTION
3950 do_spec_1 (" ", 0, NULL_PTR
);
3952 do_spec_1 (buffer
, 1, NULL_PTR
);
3953 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3954 /* Make this a separate argument. */
3955 do_spec_1 (" ", 0, NULL_PTR
);
3958 if (!pl
->require_machine_suffix
)
3960 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3962 do_spec_1 ("-L", 0, NULL_PTR
);
3963 #ifdef SPACE_AFTER_L_OPTION
3964 do_spec_1 (" ", 0, NULL_PTR
);
3966 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3967 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3968 /* Make this a separate argument. */
3969 do_spec_1 (" ", 0, NULL_PTR
);
3975 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3977 do_spec_1 ("-L", 0, NULL_PTR
);
3978 #ifdef SPACE_AFTER_L_OPTION
3979 do_spec_1 (" ", 0, NULL_PTR
);
3981 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3982 /* Remove slash from machine_suffix. */
3983 if (strlen (machine_suffix
) >= bufsize
)
3984 bufsize
= strlen (machine_suffix
) * 2 + 1;
3985 buffer
= (char *) xrealloc (buffer
, bufsize
);
3986 strcpy (buffer
, machine_suffix
);
3987 idx
= strlen (buffer
);
3988 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3989 buffer
[idx
- 1] = 0;
3990 do_spec_1 (buffer
, 1, NULL_PTR
);
3991 /* Make this a separate argument. */
3992 do_spec_1 (" ", 0, NULL_PTR
);
3995 if (!pl
->require_machine_suffix
)
3997 if (is_directory (pl
->prefix
, "", 1))
3999 do_spec_1 ("-L", 0, NULL_PTR
);
4000 #ifdef SPACE_AFTER_L_OPTION
4001 do_spec_1 (" ", 0, NULL_PTR
);
4003 /* Remove slash from pl->prefix. */
4004 if (strlen (pl
->prefix
) >= bufsize
)
4005 bufsize
= strlen (pl
->prefix
) * 2 + 1;
4006 buffer
= (char *) xrealloc (buffer
, bufsize
);
4007 strcpy (buffer
, pl
->prefix
);
4008 idx
= strlen (buffer
);
4009 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
4010 buffer
[idx
- 1] = 0;
4011 do_spec_1 (buffer
, 1, NULL_PTR
);
4012 /* Make this a separate argument. */
4013 do_spec_1 (" ", 0, NULL_PTR
);
4022 /* %efoo means report an error with `foo' as error message
4023 and don't execute any more commands for this file. */
4027 while (*p
!= 0 && *p
!= '\n')
4029 buf
= (char *) alloca (p
- q
+ 1);
4030 strncpy (buf
, q
, p
- q
);
4041 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
4042 and it is not a directory, and it is writable, use it.
4043 Otherwise, fall through and treat this like any other
4046 if ((!save_temps_flag
)
4047 && (stat (HOST_BIT_BUCKET
, &st
) == 0) && (!S_ISDIR (st
.st_mode
))
4048 && (access (HOST_BIT_BUCKET
, W_OK
) == 0))
4050 obstack_grow (&obstack
, HOST_BIT_BUCKET
,
4051 strlen (HOST_BIT_BUCKET
));
4052 delete_this_arg
= 0;
4060 if (save_temps_flag
)
4062 obstack_grow (&obstack
, input_basename
, basename_length
);
4063 delete_this_arg
= 0;
4067 struct temp_name
*t
;
4069 const char *suffix
= p
;
4070 char *saved_suffix
= NULL
;
4072 while (*p
== '.' || ISALPHA ((unsigned char) *p
))
4074 suffix_length
= p
- suffix
;
4075 if (p
[0] == '%' && p
[1] == 'O')
4078 /* We don't support extra suffix characters after %O. */
4079 if (*p
== '.' || ISALPHA ((unsigned char) *p
))
4081 if (suffix_length
== 0)
4082 suffix
= OBJECT_SUFFIX
;
4086 = (char *) xmalloc (suffix_length
4087 + strlen (OBJECT_SUFFIX
));
4088 strncpy (saved_suffix
, suffix
, suffix_length
);
4089 strcpy (saved_suffix
+ suffix_length
,
4092 suffix_length
+= strlen (OBJECT_SUFFIX
);
4095 /* See if we already have an association of %g/%u/%U and
4097 for (t
= temp_names
; t
; t
= t
->next
)
4098 if (t
->length
== suffix_length
4099 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4100 && t
->unique
== (c
!= 'g'))
4103 /* Make a new association if needed. %u and %j require one. */
4104 if (t
== 0 || c
== 'u' || c
== 'j')
4108 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4109 t
->next
= temp_names
;
4112 t
->length
= suffix_length
;
4113 t
->suffix
= save_string (suffix
, suffix_length
);
4114 t
->unique
= (c
!= 'g');
4115 temp_filename
= make_temp_file (t
->suffix
);
4116 temp_filename_length
= strlen (temp_filename
);
4117 t
->filename
= temp_filename
;
4118 t
->filename_length
= temp_filename_length
;
4122 free (saved_suffix
);
4124 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4125 delete_this_arg
= 1;
4131 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4137 struct prefix_list
*pl
= include_prefixes
.plist
;
4139 if (gcc_exec_prefix
)
4141 do_spec_1 ("-iprefix", 1, NULL_PTR
);
4142 /* Make this a separate argument. */
4143 do_spec_1 (" ", 0, NULL_PTR
);
4144 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
4145 do_spec_1 (" ", 0, NULL_PTR
);
4148 for (; pl
; pl
= pl
->next
)
4150 do_spec_1 ("-isystem", 1, NULL_PTR
);
4151 /* Make this a separate argument. */
4152 do_spec_1 (" ", 0, NULL_PTR
);
4153 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4154 do_spec_1 (" ", 0, NULL_PTR
);
4161 int max
= n_infiles
;
4162 max
+= lang_specific_extra_outfiles
;
4164 for (i
= 0; i
< max
; i
++)
4166 store_arg (outfiles
[i
], 0, 0);
4171 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
4176 this_is_library_file
= 1;
4180 this_is_output_file
= 1;
4185 int cur_index
= argbuf_index
;
4186 /* Handle the {...} following the %W. */
4189 p
= handle_braces (p
+ 1);
4192 /* If any args were output, mark the last one for deletion
4194 if (argbuf_index
!= cur_index
)
4195 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4199 /* %x{OPTION} records OPTION for %X to output. */
4205 /* Skip past the option value and make a copy. */
4210 string
= save_string (p1
+ 1, p
- p1
- 2);
4212 /* See if we already recorded this option. */
4213 for (i
= 0; i
< n_linker_options
; i
++)
4214 if (! strcmp (string
, linker_options
[i
]))
4220 /* This option is new; add it. */
4221 add_linker_option (string
, strlen (string
));
4225 /* Dump out the options accumulated previously using %x. */
4227 for (i
= 0; i
< n_linker_options
; i
++)
4229 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
4230 /* Make each accumulated option a separate argument. */
4231 do_spec_1 (" ", 0, NULL_PTR
);
4235 /* Dump out the options accumulated previously using -Wa,. */
4237 for (i
= 0; i
< n_assembler_options
; i
++)
4239 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
4240 /* Make each accumulated option a separate argument. */
4241 do_spec_1 (" ", 0, NULL_PTR
);
4245 /* Dump out the options accumulated previously using -Wp,. */
4247 for (i
= 0; i
< n_preprocessor_options
; i
++)
4249 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
4250 /* Make each accumulated option a separate argument. */
4251 do_spec_1 (" ", 0, NULL_PTR
);
4255 /* Here are digits and numbers that just process
4256 a certain constant string as a spec. */
4259 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
4265 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
4271 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
4277 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
4283 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
4289 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
4295 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
4301 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
4307 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
4313 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
4320 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4324 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4328 if (! strncmp (y
, "-D", 2))
4329 /* Copy the whole option. */
4330 while (*y
&& *y
!= ' ' && *y
!= '\t')
4332 else if (*y
== ' ' || *y
== '\t')
4333 /* Copy whitespace to the result. */
4335 /* Don't copy other options. */
4342 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4350 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4354 /* Copy all of CPP_PREDEFINES into BUF,
4355 but force them all into the reserved name space if they
4356 aren't already there. The reserved name space is all
4357 identifiers beginning with two underscores or with one
4358 underscore and a capital letter. We do the forcing by
4359 adding up to two underscores to the beginning and end
4360 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4365 if (! strncmp (y
, "-D", 2))
4374 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4376 /* Stick __ at front of macro name. */
4380 /* Arrange to stick __ at the end as well. */
4384 /* Copy the macro name. */
4385 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4398 /* Copy the value given, if any. */
4399 while (*y
&& *y
!= ' ' && *y
!= '\t')
4402 else if (*y
== ' ' || *y
== '\t')
4403 /* Copy whitespace to the result. */
4405 /* Don't copy -A options */
4411 /* Copy all of CPP_PREDEFINES into BUF,
4412 but put __ after every -D. */
4416 if (! strncmp (y
, "-D", 2))
4422 && ! ISUPPER ((unsigned char) *(y
+ 1))))
4424 /* Stick -D__ at front of macro name. */
4431 /* Copy the macro name. */
4432 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4435 /* Copy the value given, if any. */
4436 while (*y
&& *y
!= ' ' && *y
!= '\t')
4441 /* Do not copy this macro - we have just done it before */
4442 while (*y
&& *y
!= ' ' && *y
!= '\t')
4446 else if (*y
== ' ' || *y
== '\t')
4447 /* Copy whitespace to the result. */
4449 /* Don't copy -A options. */
4455 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4459 if (! strncmp (y
, "-A", 2))
4460 /* Copy the whole option. */
4461 while (*y
&& *y
!= ' ' && *y
!= '\t')
4463 else if (*y
== ' ' || *y
== '\t')
4464 /* Copy whitespace to the result. */
4466 /* Don't copy other options. */
4473 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4480 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4485 /* Here we define characters other than letters and digits. */
4488 p
= handle_braces (p
);
4494 obstack_1grow (&obstack
, '%');
4498 if (soft_matched_part
)
4500 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4501 do_spec_1 (" ", 0, NULL_PTR
);
4504 /* Catch the case where a spec string contains something like
4505 '%{foo:%*}'. ie there is no * in the pattern on the left
4506 hand side of the :. */
4507 error ("Spec failure: '%%*' has not been initialised by pattern match");
4510 /* Process a string found as the value of a spec given by name.
4511 This feature allows individual machine descriptions
4512 to add and use their own specs.
4513 %[...] modifies -D options the way %P does;
4514 %(...) uses the spec unmodified. */
4516 error ("Warning: use of obsolete %%[ operator in specs");
4519 const char *name
= p
;
4520 struct spec_list
*sl
;
4523 /* The string after the S/P is the name of a spec that is to be
4525 while (*p
&& *p
!= ')' && *p
!= ']')
4528 /* See if it's in the list. */
4529 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4530 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4532 name
= *(sl
->ptr_spec
);
4534 notice ("Processing spec %c%s%c, which is '%s'\n",
4535 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4544 value
= do_spec_1 (name
, 0, NULL_PTR
);
4550 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4552 const char *y
= name
;
4555 /* Copy all of NAME into BUF, but put __ after
4556 every -D and at the end of each arg. */
4559 if (! strncmp (y
, "-D", 2))
4570 && (*y
== ' ' || *y
== '\t' || *y
== '='
4571 || *y
== '}' || *y
== 0))
4584 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4590 /* Discard the closing paren or bracket. */
4598 int c1
= *p
++; /* Select first or second version number. */
4599 const char *v
= compiler_version
;
4601 static const char zeroc
= '0';
4603 /* The format of the version string is
4604 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4606 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4607 while (! ISDIGIT (*v
))
4609 if (v
> compiler_version
&& v
[-1] != '-')
4612 /* If desired, advance to second version number. */
4615 /* Set V after the first period. */
4616 while (ISDIGIT (*v
))
4623 /* If desired, advance to third version number.
4624 But don't complain if it's not present */
4627 /* Set V after the second period. */
4628 while (ISDIGIT (*v
))
4630 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4636 /* Set Q at the next period or at the end. */
4638 while (ISDIGIT (*q
))
4640 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4644 /* Put that part into the command. */
4645 obstack_grow (&obstack
, v
, q
- v
);
4647 /* Default to "0" */
4648 obstack_grow (&obstack
, &zeroc
, 1);
4654 if (input_from_pipe
)
4655 do_spec_1 ("-", 0, NULL_PTR
);
4659 error ("Spec failure: Unrecognised spec option '%c'", c
);
4665 /* Backslash: treat next character as ordinary. */
4670 /* Ordinary character: put it into the current argument. */
4671 obstack_1grow (&obstack
, c
);
4675 /* End of string. */
4679 /* Return 0 if we call do_spec_1 and that returns -1. */
4683 register const char *p
;
4685 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4689 int include_blanks
= 1;
4690 int elide_switch
= 0;
4694 /* A '^' after the open-brace means to not give blanks before args. */
4701 /* A `|' after the open-brace means,
4702 if the test fails, output a single minus sign rather than nothing.
4703 This is used in %{|!pipe:...}. */
4710 /* A `<' after the open-brace means that the switch should be
4711 removed from the command-line. */
4717 negate
= suffix
= 0;
4720 /* A `!' after the open-brace negates the condition:
4721 succeed if the specified switch is not present. */
4725 /* A `.' after the open-brace means test against the current suffix. */
4734 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
4736 /* It doesn't make sense to mix elision with other flags. We
4737 could fatal() here, but the standard seems to be to abort. */
4742 while (*p
!= ':' && *p
!= '}' && *p
!= '|')
4745 if (*p
== '|' && pipe_p
)
4752 register int count
= 1;
4753 register const char *q
= p
;
4772 body
= p
, endbody
= p
+ 1;
4777 int found
= (input_suffix
!= 0
4778 && (long) strlen (input_suffix
) == (long) (p
- filter
)
4779 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4785 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4788 else if (p
[-1] == '*' && p
[0] == '}')
4790 /* Substitute all matching switches as separate args. */
4793 for (i
= 0; i
< n_switches
; i
++)
4794 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4795 && check_live_switch (i
, p
- filter
))
4796 give_switch (i
, 0, include_blanks
);
4800 /* Test for presence of the specified switch. */
4804 /* If name specified ends in *, as in {x*:...},
4805 check for %* and handle that case. */
4806 if (p
[-1] == '*' && !negate
)
4809 const char *r
= body
;
4811 /* First see whether we have %*. */
4815 if (*r
== '%' && r
[1] == '*')
4819 /* If we do, handle that case. */
4822 /* Substitute all matching switches as separate args.
4823 But do this by substituting for %*
4824 in the text that follows the colon. */
4826 unsigned hard_match_len
= p
- filter
- 1;
4827 char *string
= save_string (body
, endbody
- body
- 1);
4829 for (i
= 0; i
< n_switches
; i
++)
4830 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4831 && check_live_switch (i
, -1))
4833 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4834 /* Pass any arguments this switch has. */
4835 give_switch (i
, 1, 1);
4838 /* We didn't match. Try again. */
4845 /* If name specified ends in *, as in {x*:...},
4846 check for presence of any switch name starting with x. */
4849 for (i
= 0; i
< n_switches
; i
++)
4851 unsigned hard_match_len
= p
- filter
- 1;
4853 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4854 && check_live_switch (i
, hard_match_len
))
4861 /* Otherwise, check for presence of exact name specified. */
4864 for (i
= 0; i
< n_switches
; i
++)
4866 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4867 && switches
[i
].part1
[p
- filter
] == 0
4868 && check_live_switch (i
, -1))
4876 /* If it is as desired (present for %{s...}, absent for %{!s...})
4877 then substitute either the switch or the specified
4878 conditional text. */
4879 if (present
!= negate
)
4883 switches
[i
].live_cond
= SWITCH_IGNORE
;
4884 switches
[i
].validated
= 1;
4888 give_switch (i
, 0, include_blanks
);
4892 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4899 /* Here if a %{|...} conditional fails: output a minus sign,
4900 which means "standard output" or "standard input". */
4901 do_spec_1 ("-", 0, NULL_PTR
);
4906 /* We didn't match; try again. */
4913 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4914 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4915 spec, or -1 if either exact match or %* is used.
4917 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4918 whose value does not begin with "no-" is obsoleted by the same value
4919 with the "no-", similarly for a switch with the "no-" prefix. */
4922 check_live_switch (switchnum
, prefix_length
)
4926 const char *name
= switches
[switchnum
].part1
;
4929 /* In the common case of {<at-most-one-letter>*}, a negating
4930 switch would always match, so ignore that case. We will just
4931 send the conflicting switches to the compiler phase. */
4932 if (prefix_length
>= 0 && prefix_length
<= 1)
4935 /* If we already processed this switch and determined if it was
4936 live or not, return our past determination. */
4937 if (switches
[switchnum
].live_cond
!= 0)
4938 return switches
[switchnum
].live_cond
> 0;
4940 /* Now search for duplicate in a manner that depends on the name. */
4944 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4945 if (switches
[i
].part1
[0] == 'O')
4947 switches
[switchnum
].validated
= 1;
4948 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4953 case 'W': case 'f': case 'm':
4954 if (! strncmp (name
+ 1, "no-", 3))
4956 /* We have Xno-YYY, search for XYYY. */
4957 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4958 if (switches
[i
].part1
[0] == name
[0]
4959 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4961 switches
[switchnum
].validated
= 1;
4962 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4968 /* We have XYYY, search for Xno-YYY. */
4969 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4970 if (switches
[i
].part1
[0] == name
[0]
4971 && switches
[i
].part1
[1] == 'n'
4972 && switches
[i
].part1
[2] == 'o'
4973 && switches
[i
].part1
[3] == '-'
4974 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4976 switches
[switchnum
].validated
= 1;
4977 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4984 /* Otherwise the switch is live. */
4985 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
4989 /* Pass a switch to the current accumulating command
4990 in the same form that we received it.
4991 SWITCHNUM identifies the switch; it is an index into
4992 the vector of switches gcc received, which is `switches'.
4993 This cannot fail since it never finishes a command line.
4995 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4997 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
5001 give_switch (switchnum
, omit_first_word
, include_blanks
)
5003 int omit_first_word
;
5006 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
5009 if (!omit_first_word
)
5011 do_spec_1 ("-", 0, NULL_PTR
);
5012 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
5015 if (switches
[switchnum
].args
!= 0)
5018 for (p
= switches
[switchnum
].args
; *p
; p
++)
5021 do_spec_1 (" ", 0, NULL_PTR
);
5022 do_spec_1 (*p
, 1, NULL_PTR
);
5026 do_spec_1 (" ", 0, NULL_PTR
);
5027 switches
[switchnum
].validated
= 1;
5030 /* Search for a file named NAME trying various prefixes including the
5031 user's -B prefix and some standard ones.
5032 Return the absolute file name found. If nothing is found, return NAME. */
5040 /* Try multilib_dir if it is defined. */
5041 if (multilib_dir
!= NULL
)
5045 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
5046 strcpy (try, multilib_dir
);
5047 strcat (try, dir_separator_str
);
5050 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5052 /* If we don't find it in the multi library dir, then fall
5053 through and look for it in the normal places. */
5054 if (newname
!= NULL
)
5058 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5059 return newname
? newname
: name
;
5062 /* Determine whether a directory exists. If LINKER, return 0 for
5063 certain fixed names not needed by the linker. If not LINKER, it is
5064 only important to return 0 if the host machine has a small ARG_MAX
5068 is_directory (path1
, path2
, linker
)
5073 int len1
= strlen (path1
);
5074 int len2
= strlen (path2
);
5075 char *path
= (char *) alloca (3 + len1
+ len2
);
5079 #ifndef SMALL_ARG_MAX
5084 /* Construct the path from the two parts. Ensure the string ends with "/.".
5085 The resulting path will be a directory even if the given path is a
5087 memcpy (path
, path1
, len1
);
5088 memcpy (path
+ len1
, path2
, len2
);
5089 cp
= path
+ len1
+ len2
;
5090 if (!IS_DIR_SEPARATOR (cp
[-1]))
5091 *cp
++ = DIR_SEPARATOR
;
5095 /* Exclude directories that the linker is known to search. */
5098 && strcmp (path
, concat (dir_separator_str
, "lib",
5099 dir_separator_str
, ".", NULL_PTR
)) == 0)
5101 && strcmp (path
, concat (dir_separator_str
, "usr",
5102 dir_separator_str
, "lib",
5103 dir_separator_str
, ".", NULL_PTR
)) == 0)))
5106 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5109 /* Set up the various global variables to indicate that we're processing
5110 the input file named FILENAME. */
5113 set_input (filename
)
5114 const char *filename
;
5116 register const char *p
;
5118 input_filename
= filename
;
5119 input_filename_length
= strlen (input_filename
);
5121 input_basename
= input_filename
;
5122 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5123 /* Skip drive name so 'x:foo' is handled properly. */
5124 if (input_basename
[1] == ':')
5125 input_basename
+= 2;
5127 for (p
= input_basename
; *p
; p
++)
5128 if (IS_DIR_SEPARATOR (*p
))
5129 input_basename
= p
+ 1;
5131 /* Find a suffix starting with the last period,
5132 and set basename_length to exclude that suffix. */
5133 basename_length
= strlen (input_basename
);
5134 suffixed_basename_length
= basename_length
;
5135 p
= input_basename
+ basename_length
;
5136 while (p
!= input_basename
&& *p
!= '.')
5138 if (*p
== '.' && p
!= input_basename
)
5140 basename_length
= p
- input_basename
;
5141 input_suffix
= p
+ 1;
5147 /* On fatal signals, delete all the temporary files. */
5150 fatal_error (signum
)
5153 signal (signum
, SIG_DFL
);
5154 delete_failure_queue ();
5155 delete_temp_files ();
5156 /* Get the same signal again, this time not handled,
5157 so its normal effect occurs. */
5158 kill (getpid (), signum
);
5161 extern int main
PARAMS ((int, const char *const *));
5166 const char *const *argv
;
5170 int linker_was_run
= 0;
5171 char *explicit_link_files
;
5174 struct user_specs
*uptr
;
5176 p
= argv
[0] + strlen (argv
[0]);
5177 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5181 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5182 /* Perform host dependant initialization when needed. */
5183 GCC_DRIVER_HOST_INITIALIZATION
;
5186 #ifdef HAVE_LC_MESSAGES
5187 setlocale (LC_MESSAGES
, "");
5189 (void) bindtextdomain (PACKAGE
, localedir
);
5190 (void) textdomain (PACKAGE
);
5192 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5193 signal (SIGINT
, fatal_error
);
5195 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5196 signal (SIGHUP
, fatal_error
);
5198 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5199 signal (SIGTERM
, fatal_error
);
5201 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5202 signal (SIGPIPE
, fatal_error
);
5206 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5208 obstack_init (&obstack
);
5210 /* Build multilib_select, et. al from the separate lines that make up each
5211 multilib selection. */
5213 const char *const *q
= multilib_raw
;
5216 obstack_init (&multilib_obstack
);
5217 while ((p
= *q
++) != (char *) 0)
5218 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5220 obstack_1grow (&multilib_obstack
, 0);
5221 multilib_select
= obstack_finish (&multilib_obstack
);
5223 q
= multilib_matches_raw
;
5224 while ((p
= *q
++) != (char *) 0)
5225 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5227 obstack_1grow (&multilib_obstack
, 0);
5228 multilib_matches
= obstack_finish (&multilib_obstack
);
5230 q
= multilib_exclusions_raw
;
5231 while ((p
= *q
++) != (char *) 0)
5232 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5234 obstack_1grow (&multilib_obstack
, 0);
5235 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5238 for (i
= 0; i
< ARRAY_SIZE (multilib_defaults_raw
); i
++)
5241 obstack_1grow (&multilib_obstack
, ' ');
5242 obstack_grow (&multilib_obstack
,
5243 multilib_defaults_raw
[i
],
5244 strlen (multilib_defaults_raw
[i
]));
5248 obstack_1grow (&multilib_obstack
, 0);
5249 multilib_defaults
= obstack_finish (&multilib_obstack
);
5252 /* Set up to remember the pathname of gcc and any options
5253 needed for collect. We use argv[0] instead of programname because
5254 we need the complete pathname. */
5255 obstack_init (&collect_obstack
);
5256 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5257 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0]) + 1);
5258 putenv (obstack_finish (&collect_obstack
));
5260 #ifdef INIT_ENVIRONMENT
5261 /* Set up any other necessary machine specific environment variables. */
5262 putenv (INIT_ENVIRONMENT
);
5265 /* Make a table of what switches there are (switches, n_switches).
5266 Make a table of specified input files (infiles, n_infiles).
5267 Decode switches that are handled locally. */
5269 process_command (argc
, argv
);
5274 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5276 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5277 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5280 for (i
= 0; (int) i
< n_switches
; i
++)
5282 const char *const *args
;
5285 obstack_grow (&collect_obstack
, " ", 1);
5288 obstack_grow (&collect_obstack
, "'-", 2);
5289 q
= switches
[i
].part1
;
5290 while ((p
= strchr (q
, '\'')))
5292 obstack_grow (&collect_obstack
, q
, p
- q
);
5293 obstack_grow (&collect_obstack
, "'\\''", 4);
5296 obstack_grow (&collect_obstack
, q
, strlen (q
));
5297 obstack_grow (&collect_obstack
, "'", 1);
5299 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5301 obstack_grow (&collect_obstack
, " '", 2);
5303 while ((p
= strchr (q
, '\'')))
5305 obstack_grow (&collect_obstack
, q
, p
- q
);
5306 obstack_grow (&collect_obstack
, "'\\''", 4);
5309 obstack_grow (&collect_obstack
, q
, strlen (q
));
5310 obstack_grow (&collect_obstack
, "'", 1);
5313 obstack_grow (&collect_obstack
, "\0", 1);
5314 putenv (obstack_finish (&collect_obstack
));
5317 /* Initialize the vector of specs to just the default.
5318 This means one element containing 0s, as a terminator. */
5320 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5321 memcpy ((char *) compilers
, (char *) default_compilers
,
5322 sizeof default_compilers
);
5323 n_compilers
= n_default_compilers
;
5325 /* Read specs from a file if there is one. */
5327 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5328 spec_version
, dir_separator_str
, NULL_PTR
);
5329 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
5331 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5332 /* Read the specs file unless it is a default one. */
5333 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5334 read_specs (specs_file
, TRUE
);
5338 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5339 for any override of as, ld and libraries. */
5340 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5341 + strlen (just_machine_suffix
)
5342 + sizeof ("specs"));
5344 strcpy (specs_file
, standard_exec_prefix
);
5345 strcat (specs_file
, just_machine_suffix
);
5346 strcat (specs_file
, "specs");
5347 if (access (specs_file
, R_OK
) == 0)
5348 read_specs (specs_file
, TRUE
);
5350 /* If not cross-compiling, look for startfiles in the standard places. */
5351 if (*cross_compile
== '0')
5353 if (*md_exec_prefix
)
5355 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC",
5356 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5357 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC",
5358 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5361 if (*md_startfile_prefix
)
5362 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5363 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5365 if (*md_startfile_prefix_1
)
5366 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5367 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5369 /* If standard_startfile_prefix is relative, base it on
5370 standard_exec_prefix. This lets us move the installed tree
5371 as a unit. If GCC_EXEC_PREFIX is defined, base
5372 standard_startfile_prefix on that as well. */
5373 if (IS_DIR_SEPARATOR (*standard_startfile_prefix
)
5374 || *standard_startfile_prefix
== '$'
5375 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5376 /* Check for disk name on MS-DOS-based systems. */
5377 || (standard_startfile_prefix
[1] == ':'
5378 && (IS_DIR_SEPARATOR (standard_startfile_prefix
[2])))
5381 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5382 PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5385 if (gcc_exec_prefix
)
5386 add_prefix (&startfile_prefixes
,
5387 concat (gcc_exec_prefix
, machine_suffix
,
5388 standard_startfile_prefix
, NULL_PTR
),
5389 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5390 add_prefix (&startfile_prefixes
,
5391 concat (standard_exec_prefix
,
5393 standard_startfile_prefix
, NULL_PTR
),
5394 NULL_PTR
, PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5397 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5398 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5399 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5400 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5401 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5402 add_prefix (&startfile_prefixes
, "./", NULL_PTR
,
5403 PREFIX_PRIORITY_LAST
, 1, NULL_PTR
);
5408 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix
) && gcc_exec_prefix
)
5409 add_prefix (&startfile_prefixes
,
5410 concat (gcc_exec_prefix
, machine_suffix
,
5411 standard_startfile_prefix
, NULL_PTR
),
5412 "BINUTILS", PREFIX_PRIORITY_LAST
, 0, NULL_PTR
);
5415 /* Process any user specified specs in the order given on the command
5417 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5419 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5420 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5423 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5424 if (gcc_exec_prefix
)
5426 char *temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5427 + strlen (spec_version
)
5428 + strlen (spec_machine
) + 3);
5429 strcpy (temp
, gcc_exec_prefix
);
5430 strcat (temp
, spec_machine
);
5431 strcat (temp
, dir_separator_str
);
5432 strcat (temp
, spec_version
);
5433 strcat (temp
, dir_separator_str
);
5434 gcc_exec_prefix
= temp
;
5437 /* Now we have the specs.
5438 Set the `valid' bits for switches that match anything in any spec. */
5440 validate_all_switches ();
5442 /* Now that we have the switches and the specs, set
5443 the subdirectory based on the options. */
5444 set_multilib_dir ();
5446 /* Warn about any switches that no pass was interested in. */
5448 for (i
= 0; (int) i
< n_switches
; i
++)
5449 if (! switches
[i
].validated
)
5450 error ("unrecognized option `-%s'", switches
[i
].part1
);
5452 /* Obey some of the options. */
5454 if (print_search_dirs
)
5456 printf (_("install: %s%s\n"), standard_exec_prefix
, machine_suffix
);
5457 printf (_("programs: %s\n"), build_search_list (&exec_prefixes
, "", 0));
5458 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes
, "", 0));
5462 if (print_file_name
)
5464 printf ("%s\n", find_file (print_file_name
));
5468 if (print_prog_name
)
5470 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5471 printf ("%s\n", (newname
? newname
: print_prog_name
));
5475 if (print_multi_lib
)
5477 print_multilib_info ();
5481 if (print_multi_directory
)
5483 if (multilib_dir
== NULL
)
5486 printf ("%s\n", multilib_dir
);
5490 if (print_help_list
)
5496 printf (_("\nFor bug reporting instructions, please see:\n"));
5497 printf ("%s.\n", GCCBUGURL
);
5502 /* We do not exit here. Instead we have created a fake input file
5503 called 'help-dummy' which needs to be compiled, and we pass this
5504 on the the various sub-processes, along with the --help switch. */
5511 notice ("Configured with: %s\n", configuration_arguments
);
5513 /* compiler_version is truncated at the first space when initialized
5514 from version string, so truncate version_string at the first space
5515 before comparing. */
5516 for (n
= 0; version_string
[n
]; n
++)
5517 if (version_string
[n
] == ' ')
5520 if (! strncmp (version_string
, compiler_version
, n
)
5521 && compiler_version
[n
] == 0)
5522 notice ("gcc version %s\n", version_string
);
5524 notice ("gcc driver version %s executing gcc version %s\n",
5525 version_string
, compiler_version
);
5531 if (n_infiles
== added_libraries
)
5532 fatal ("No input files");
5534 /* Make a place to record the compiler output file names
5535 that correspond to the input files. */
5538 i
+= lang_specific_extra_outfiles
;
5539 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5541 /* Record which files were specified explicitly as link input. */
5543 explicit_link_files
= xcalloc (1, n_infiles
);
5545 for (i
= 0; (int) i
< n_infiles
; i
++)
5547 register struct compiler
*cp
= 0;
5548 int this_file_error
= 0;
5550 /* Tell do_spec what to substitute for %i. */
5552 input_file_number
= i
;
5553 set_input (infiles
[i
].name
);
5555 /* Use the same thing in %o, unless cp->spec says otherwise. */
5557 outfiles
[i
] = input_filename
;
5559 /* Figure out which compiler from the file's suffix. */
5561 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5562 infiles
[i
].language
);
5566 /* Ok, we found an applicable compiler. Run its spec. */
5568 if (cp
->spec
[0] == '#')
5569 error ("%s: %s compiler not installed on this system",
5570 input_filename
, &cp
->spec
[1]);
5571 value
= do_spec (cp
->spec
);
5573 this_file_error
= 1;
5576 /* If this file's name does not contain a recognized suffix,
5577 record it as explicit linker input. */
5580 explicit_link_files
[i
] = 1;
5582 /* Clear the delete-on-failure queue, deleting the files in it
5583 if this compilation failed. */
5585 if (this_file_error
)
5587 delete_failure_queue ();
5590 /* If this compilation succeeded, don't delete those files later. */
5591 clear_failure_queue ();
5594 /* Reset the output file name to the first input file name, for use
5595 with %b in LINK_SPEC on a target that prefers not to emit a.out
5598 set_input (infiles
[0].name
);
5600 if (error_count
== 0)
5602 /* Make sure INPUT_FILE_NUMBER points to first available open
5604 input_file_number
= n_infiles
;
5605 if (lang_specific_pre_link ())
5609 /* Run ld to link all the compiler output files. */
5611 if (error_count
== 0)
5613 int tmp
= execution_count
;
5615 /* We'll use ld if we can't find collect2. */
5616 if (! strcmp (linker_name_spec
, "collect2"))
5618 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5620 linker_name_spec
= "ld";
5622 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5624 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
5625 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
5627 value
= do_spec (link_command_spec
);
5630 linker_was_run
= (tmp
!= execution_count
);
5633 /* If options said don't run linker,
5634 complain about input files to be given to the linker. */
5636 if (! linker_was_run
&& error_count
== 0)
5637 for (i
= 0; (int) i
< n_infiles
; i
++)
5638 if (explicit_link_files
[i
])
5639 error ("%s: linker input file unused because linking not done",
5642 /* Delete some or all of the temporary files we made. */
5645 delete_failure_queue ();
5646 delete_temp_files ();
5648 if (print_help_list
)
5650 printf (("\nFor bug reporting instructions, please see:\n"));
5651 printf ("%s\n", GCCBUGURL
);
5654 return (signal_count
!= 0 ? 2
5655 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5659 /* Find the proper compilation spec for the file name NAME,
5660 whose length is LENGTH. LANGUAGE is the specified language,
5661 or 0 if this file is to be passed to the linker. */
5663 static struct compiler
*
5664 lookup_compiler (name
, length
, language
)
5667 const char *language
;
5669 struct compiler
*cp
;
5671 /* If this was specified by the user to be a linker input, indicate that. */
5672 if (language
!= 0 && language
[0] == '*')
5675 /* Otherwise, look for the language, if one is spec'd. */
5678 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5679 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5682 error ("language %s not recognized", language
);
5686 /* Look for a suffix. */
5687 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5689 if (/* The suffix `-' matches only the file name `-'. */
5690 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5691 || (strlen (cp
->suffix
) < length
5692 /* See if the suffix matches the end of NAME. */
5693 && !strcmp (cp
->suffix
,
5694 name
+ length
- strlen (cp
->suffix
))
5699 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5700 /* look again, but case-insensitively this time. */
5702 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5704 if (/* The suffix `-' matches only the file name `-'. */
5705 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5706 || (strlen (cp
->suffix
) < length
5707 /* See if the suffix matches the end of NAME. */
5708 && ((!strcmp (cp
->suffix
,
5709 name
+ length
- strlen (cp
->suffix
))
5710 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5711 && !strcasecmp (cp
->suffix
,
5712 name
+ length
- strlen (cp
->suffix
)))
5718 if (cp
>= compilers
)
5720 if (cp
->spec
[0] != '@')
5721 /* A non-alias entry: return it. */
5724 /* An alias entry maps a suffix to a language.
5725 Search for the language; pass 0 for NAME and LENGTH
5726 to avoid infinite recursion if language not found. */
5727 return lookup_compiler (NULL_PTR
, 0, cp
->spec
+ 1);
5733 save_string (s
, len
)
5737 register char *result
= xmalloc (len
+ 1);
5739 memcpy (result
, s
, len
);
5745 pfatal_with_name (name
)
5748 perror_with_name (name
);
5749 delete_temp_files ();
5754 perror_with_name (name
)
5757 error ("%s: %s", name
, xstrerror (errno
));
5761 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5762 const char *errmsg_fmt
;
5763 const char *errmsg_arg
;
5767 int save_errno
= errno
;
5769 /* Space for trailing '\0' is in %s. */
5770 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5771 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5777 pfatal_with_name (errmsg_fmt
);
5780 /* Output an error message and exit */
5785 fatal ("Internal gcc abort.");
5788 /* Output an error message and exit */
5791 fatal
VPARAMS ((const char *msgid
, ...))
5793 #ifndef ANSI_PROTOTYPES
5798 VA_START (ap
, msgid
);
5800 #ifndef ANSI_PROTOTYPES
5801 msgid
= va_arg (ap
, const char *);
5804 fprintf (stderr
, "%s: ", programname
);
5805 vfprintf (stderr
, _(msgid
), ap
);
5807 fprintf (stderr
, "\n");
5808 delete_temp_files ();
5813 error
VPARAMS ((const char *msgid
, ...))
5815 #ifndef ANSI_PROTOTYPES
5820 VA_START (ap
, msgid
);
5822 #ifndef ANSI_PROTOTYPES
5823 msgid
= va_arg (ap
, const char *);
5826 fprintf (stderr
, "%s: ", programname
);
5827 vfprintf (stderr
, _(msgid
), ap
);
5830 fprintf (stderr
, "\n");
5834 notice
VPARAMS ((const char *msgid
, ...))
5836 #ifndef ANSI_PROTOTYPES
5841 VA_START (ap
, msgid
);
5843 #ifndef ANSI_PROTOTYPES
5844 msgid
= va_arg (ap
, const char *);
5847 vfprintf (stderr
, _(msgid
), ap
);
5852 validate_all_switches ()
5854 struct compiler
*comp
;
5855 register const char *p
;
5857 struct spec_list
*spec
;
5859 for (comp
= compilers
; comp
->spec
; comp
++)
5863 if (c
== '%' && *p
== '{')
5864 /* We have a switch spec. */
5865 validate_switches (p
+ 1);
5868 /* Look through the linked list of specs read from the specs file. */
5869 for (spec
= specs
; spec
; spec
= spec
->next
)
5871 p
= *(spec
->ptr_spec
);
5873 if (c
== '%' && *p
== '{')
5874 /* We have a switch spec. */
5875 validate_switches (p
+ 1);
5878 p
= link_command_spec
;
5880 if (c
== '%' && *p
== '{')
5881 /* We have a switch spec. */
5882 validate_switches (p
+ 1);
5885 /* Look at the switch-name that comes after START
5886 and mark as valid all supplied switches that match it. */
5889 validate_switches (start
)
5892 register const char *p
= start
;
5907 while (*p
!= ':' && *p
!= '}')
5912 else if (p
[-1] == '*')
5914 /* Mark all matching switches as valid. */
5916 for (i
= 0; i
< n_switches
; i
++)
5917 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5918 switches
[i
].validated
= 1;
5922 /* Mark an exact matching switch as valid. */
5923 for (i
= 0; i
< n_switches
; i
++)
5925 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5926 && switches
[i
].part1
[p
- filter
] == 0)
5927 switches
[i
].validated
= 1;
5932 /* Check whether a particular argument was used. The first time we
5933 canonicalize the switches to keep only the ones we care about. */
5943 const char *replace
;
5948 static struct mswitchstr
*mswitches
;
5949 static int n_mswitches
;
5954 struct mswitchstr
*matches
;
5958 /* Break multilib_matches into the component strings of string
5959 and replacement string. */
5960 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5965 (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5967 q
= multilib_matches
;
5977 matches
[i
].len
= q
- matches
[i
].str
;
5979 matches
[i
].replace
= ++q
;
5980 while (*q
!= ';' && *q
!= '\0')
5986 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5992 /* Now build a list of the replacement string for switches that we care
5993 about. Make sure we allocate at least one entry. This prevents
5994 xmalloc from calling fatal, and prevents us from re-executing this
5997 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5998 * (n_switches
? n_switches
: 1));
5999 for (i
= 0; i
< n_switches
; i
++)
6001 int xlen
= strlen (switches
[i
].part1
);
6002 for (j
= 0; j
< cnt
; j
++)
6003 if (xlen
== matches
[j
].len
6004 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6006 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6007 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6008 mswitches
[n_mswitches
].replace
= (char *) 0;
6009 mswitches
[n_mswitches
].rep_len
= 0;
6016 for (i
= 0; i
< n_mswitches
; i
++)
6017 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6024 default_arg (p
, len
)
6028 const char *start
, *end
;
6030 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+ 1)
6032 while (*start
== ' ' || *start
== '\t')
6038 for (end
= start
+ 1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6041 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6051 /* Work out the subdirectory to use based on the options. The format of
6052 multilib_select is a list of elements. Each element is a subdirectory
6053 name followed by a list of options followed by a semicolon. The format
6054 of multilib_exclusions is the same, but without the preceding
6055 directory. First gcc will check the exclusions, if none of the options
6056 beginning with an exclamation point are present, and all of the other
6057 options are present, then we will ignore this completely. Passing
6058 that, gcc will consider each multilib_select in turn using the same
6059 rules for matching the options. If a match is found, that subdirectory
6066 unsigned int this_path_len
;
6067 const char *this_path
, *this_arg
;
6071 p
= multilib_exclusions
;
6074 /* Ignore newlines. */
6081 /* Check the arguments. */
6095 while (*p
!= ' ' && *p
!= ';')
6102 if (*this_arg
!= '!')
6110 ok
= used_arg (this_arg
, p
- this_arg
);
6124 p
= multilib_select
;
6127 /* Ignore newlines. */
6134 /* Get the initial path. */
6142 this_path_len
= p
- this_path
;
6144 /* Check the arguments. */
6159 while (*p
!= ' ' && *p
!= ';')
6166 if (*this_arg
!= '!')
6174 /* If this is a default argument, we can just ignore it.
6175 This is true even if this_arg begins with '!'. Beginning
6176 with '!' does not mean that this argument is necessarily
6177 inappropriate for this library: it merely means that
6178 there is a more specific library which uses this
6179 argument. If this argument is a default, we need not
6180 consider that more specific library. */
6181 if (! default_arg (this_arg
, p
- this_arg
))
6183 ok
= used_arg (this_arg
, p
- this_arg
);
6194 if (this_path_len
!= 1
6195 || this_path
[0] != '.')
6197 char *new_multilib_dir
= xmalloc (this_path_len
+ 1);
6198 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6199 new_multilib_dir
[this_path_len
] = '\0';
6200 multilib_dir
= new_multilib_dir
;
6209 /* Print out the multiple library subdirectory selection
6210 information. This prints out a series of lines. Each line looks
6211 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6212 required. Only the desired options are printed out, the negative
6213 matches. The options are print without a leading dash. There are
6214 no spaces to make it easy to use the information in the shell.
6215 Each subdirectory is printed only once. This assumes the ordering
6216 generated by the genmultilib script. Also, we leave out ones that match
6220 print_multilib_info ()
6222 const char *p
= multilib_select
;
6223 const char *last_path
= 0, *this_path
;
6225 unsigned int last_path_len
= 0;
6230 /* Ignore newlines. */
6237 /* Get the initial path. */
6246 /* Check for matches with the multilib_exclusions. We don't bother
6247 with the '!' in either list. If any of the exclusion rules match
6248 all of its options with the select rule, we skip it. */
6250 const char *e
= multilib_exclusions
;
6251 const char *this_arg
;
6256 /* Ignore newlines. */
6263 /* Check the arguments. */
6280 while (*e
!= ' ' && *e
!= ';')
6291 int len
= e
- this_arg
;
6298 while (*q
!= ' ' && *q
!= ';')
6305 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6306 default_arg (this_arg
, e
- this_arg
))
6336 /* If this is a duplicate, skip it. */
6337 skip
= (last_path
!= 0 && (unsigned int) (p
- this_path
) == last_path_len
6338 && ! strncmp (last_path
, this_path
, last_path_len
));
6340 last_path
= this_path
;
6341 last_path_len
= p
- this_path
;
6344 /* If this directory requires any default arguments, we can skip
6345 it. We will already have printed a directory identical to
6346 this one which does not require that default argument. */
6364 while (*q
!= ' ' && *q
!= ';')
6372 && default_arg (arg
, q
- arg
))
6387 for (p1
= last_path
; p1
< p
; p1
++)
6406 use_arg
= *p
!= '!';
6411 while (*p
!= ' ' && *p
!= ';')
6426 /* If there are extra options, print them now. */
6427 if (multilib_extra
&& *multilib_extra
)
6429 int print_at
= TRUE
;
6432 for (q
= multilib_extra
; *q
!= '\0'; q
++)