1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-98, 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 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 #ifdef NEED_DECLARATION_GETRUSAGE
51 extern int getrusage
PROTO ((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"
68 /* By default, colon separates directories in a path. */
69 #ifndef PATH_SEPARATOR
70 #define PATH_SEPARATOR ':'
74 #define DIR_SEPARATOR '/'
78 /* FIXME: the location independence code for VMS is hairier than this,
79 and hasn't been written. */
85 /* Define IS_DIR_SEPARATOR. */
86 #ifndef DIR_SEPARATOR_2
87 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
88 #else /* DIR_SEPARATOR_2 */
89 # define IS_DIR_SEPARATOR(ch) \
90 (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
91 #endif /* DIR_SEPARATOR_2 */
93 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
95 #define obstack_chunk_alloc xmalloc
96 #define obstack_chunk_free free
98 #ifndef GET_ENV_PATH_LIST
99 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
103 #define kill(p,s) raise(s)
106 /* If a stage of compilation returns an exit status >= 1,
107 compilation of that file ceases. */
109 #define MIN_FATAL_STATUS 1
111 /* Flag saying to pass the greatest exit code returned by a sub-process
112 to the calling program. */
113 static int pass_exit_codes
;
115 /* Flag saying to print the directories gcc will search through looking for
116 programs, libraries, etc. */
118 static int print_search_dirs
;
120 /* Flag saying to print the full filename of this file
121 as found through our usual search mechanism. */
123 static const char *print_file_name
= NULL
;
125 /* As print_file_name, but search for executable file. */
127 static const char *print_prog_name
= NULL
;
129 /* Flag saying to print the relative path we'd use to
130 find libgcc.a given the current compiler flags. */
132 static int print_multi_directory
;
134 /* Flag saying to print the list of subdirectories and
135 compiler flags used to select them in a standard form. */
137 static int print_multi_lib
;
139 /* Flag saying to print the command line options understood by gcc and its
142 static int print_help_list
;
144 /* Flag indicating whether we should print the command and arguments */
146 static int verbose_flag
;
148 /* Flag indicating whether we should report subprocess execution times
149 (if this is supported by the system - see pexecute.c). */
151 static int report_times
;
153 /* Nonzero means write "temp" files in source directory
154 and use the source file's name in them, and don't delete them. */
156 static int save_temps_flag
;
158 /* The compiler version. */
160 static char *compiler_version
;
162 /* The target version specified with -V */
164 static char *spec_version
= DEFAULT_TARGET_VERSION
;
166 /* The target machine specified with -b. */
168 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
170 /* Nonzero if cross-compiling.
171 When -b is used, the value comes from the `specs' file. */
174 static char *cross_compile
= "1";
176 static char *cross_compile
= "0";
179 /* The number of errors that have occurred; the link phase will not be
180 run if this is non-zero. */
181 static int error_count
= 0;
183 /* Greatest exit code of sub-processes that has been encountered up to
185 static int greatest_status
= 1;
187 /* This is the obstack which we use to allocate many strings. */
189 static struct obstack obstack
;
191 /* This is the obstack to build an environment variable to pass to
192 collect2 that describes all of the relevant switches of what to
193 pass the compiler in building the list of pointers to constructors
196 static struct obstack collect_obstack
;
198 /* These structs are used to collect resource usage information for
200 #ifdef HAVE_GETRUSAGE
201 static struct rusage rus
, prus
;
204 extern char *version_string
;
206 /* Forward declaration for prototypes. */
209 static void init_spec
PROTO((void));
211 static char **split_directories
PROTO((const char *, int *));
212 static void free_split_directories
PROTO((char **));
213 static char *make_relative_prefix
PROTO((const char *, const char *, const char *));
215 static void read_specs
PROTO((const char *, int));
216 static void set_spec
PROTO((const char *, const char *));
217 static struct compiler
*lookup_compiler
PROTO((const char *, size_t, const char *));
218 static char *build_search_list
PROTO((struct path_prefix
*, const char *, int));
219 static void putenv_from_prefixes
PROTO((struct path_prefix
*, const char *));
220 static int access_check
PROTO((const char *, int));
221 static char *find_a_file
PROTO((struct path_prefix
*, const char *, int));
222 static void add_prefix
PROTO((struct path_prefix
*, const char *,
223 const char *, int, int, int *));
224 static char *skip_whitespace
PROTO((char *));
225 static void record_temp_file
PROTO((const char *, int, int));
226 static void delete_if_ordinary
PROTO((const char *));
227 static void delete_temp_files
PROTO((void));
228 static void delete_failure_queue
PROTO((void));
229 static void clear_failure_queue
PROTO((void));
230 static int check_live_switch
PROTO((int, int));
231 static const char *handle_braces
PROTO((const char *));
232 static char *save_string
PROTO((const char *, int));
233 static int do_spec_1
PROTO((const char *, int, const char *));
234 static const char *find_file
PROTO((const char *));
235 static int is_directory
PROTO((const char *, const char *, int));
236 static void validate_switches
PROTO((const char *));
237 static void validate_all_switches
PROTO((void));
238 static void give_switch
PROTO((int, int, int));
239 static int used_arg
PROTO((const char *, int));
240 static int default_arg
PROTO((const char *, int));
241 static void set_multilib_dir
PROTO((void));
242 static void print_multilib_info
PROTO((void));
243 static void pfatal_with_name
PROTO((const char *)) ATTRIBUTE_NORETURN
;
244 static void perror_with_name
PROTO((const char *));
245 static void pfatal_pexecute
PROTO((const char *, const char *))
247 static void error
PVPROTO((const char *, ...))
249 static void notice
PVPROTO((const char *, ...))
251 static void display_help
PROTO((void));
252 static void add_preprocessor_option
PROTO ((const char *, int));
253 static void add_assembler_option
PROTO ((const char *, int));
254 static void add_linker_option
PROTO ((const char *, int));
255 static void process_command
PROTO ((int, char **));
256 static int execute
PROTO ((void));
257 static void unused_prefix_warnings
PROTO ((struct path_prefix
*));
258 static void clear_args
PROTO ((void));
259 static void fatal_error
PROTO ((int));
261 /* Specs are strings containing lines, each of which (if not blank)
262 is made up of a program name, and arguments separated by spaces.
263 The program name must be exact and start from root, since no path
264 is searched and it is unreliable to depend on the current working directory.
265 Redirection of input or output is not supported; the subprograms must
266 accept filenames saying what files to read and write.
268 In addition, the specs can contain %-sequences to substitute variable text
269 or for conditional text. Here is a table of all defined %-sequences.
270 Note that spaces are not generated automatically around the results of
271 expanding these sequences; therefore, you can concatenate them together
272 or with constant text in a single argument.
274 %% substitute one % into the program name or argument.
275 %i substitute the name of the input file being processed.
276 %b substitute the basename of the input file being processed.
277 This is the substring up to (and not including) the last period
278 and not including the directory.
280 substitute a file name that has suffix SUFFIX and is chosen
281 once per compilation, and mark the argument a la %d. To reduce
282 exposure to denial-of-service attacks, the file name is now
283 chosen in a way that is hard to predict even when previously
284 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
285 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
286 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
287 had been pre-processed. Previously, %g was simply substituted
288 with a file name chosen once per compilation, without regard
289 to any appended suffix (which was therefore treated just like
290 ordinary text), making such attacks more likely to succeed.
292 like %g, but generates a new temporary file name even if %uSUFFIX
295 substitutes the last file name generated with %uSUFFIX, generating a
296 new one if there is no such last file name. In the absence of any
297 %uSUFFIX, this is just like %gSUFFIX, except they don't share
298 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
299 would involve the generation of two distinct file names, one
300 for each `%g.s' and another for each `%U.s'. Previously, %U was
301 simply substituted with a file name chosen for the previous %u,
302 without regard to any appended suffix.
303 %d marks the argument containing or following the %d as a
304 temporary file name, so that that file will be deleted if CC exits
305 successfully. Unlike %g, this contributes no text to the argument.
306 %w marks the argument containing or following the %w as the
307 "output file" of this compilation. This puts the argument
308 into the sequence of arguments that %o will substitute later.
310 like %{...} but mark last argument supplied within
311 as a file to be deleted on failure.
312 %o substitutes the names of all the output files, with spaces
313 automatically placed around them. You should write spaces
314 around the %o as well or the results are undefined.
315 %o is for use in the specs for running the linker.
316 Input files whose names have no recognized suffix are not compiled
317 at all, but they are included among the output files, so they will
319 %O substitutes the suffix for object files. Note that this is
320 handled specially when it immediately follows %g, %u, or %U
321 (with or without a suffix argument) because of the need for
322 those to form complete file names. The handling is such that
323 %O is treated exactly as if it had already been substituted,
324 except that %g, %u, and %U do not currently support additional
325 SUFFIX characters following %O as they would following, for
327 %p substitutes the standard macro predefinitions for the
328 current target machine. Use this when running cpp.
329 %P like %p, but puts `__' before and after the name of each macro.
330 (Except macros that already have __.)
332 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
333 %s current argument is the name of a library or startup file of some sort.
334 Search for that file in a standard list of directories
335 and substitute the full name found.
336 %eSTR Print STR as an error message. STR is terminated by a newline.
337 Use this when inconsistent options are detected.
338 %x{OPTION} Accumulate an option for %X.
339 %X Output the accumulated linker options specified by compilations.
340 %Y Output the accumulated assembler options specified by compilations.
341 %Z Output the accumulated preprocessor options specified by compilations.
342 %v1 Substitute the major version number of GCC.
343 (For version 2.5.n, this is 2.)
344 %v2 Substitute the minor version number of GCC.
345 (For version 2.5.n, this is 5.)
346 %a process ASM_SPEC as a spec.
347 This allows config.h to specify part of the spec for running as.
348 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
349 used here. This can be used to run a post-processor after the
350 assembler has done its job.
351 %D Dump out a -L option for each directory in startfile_prefixes.
352 If multilib_dir is set, extra entries are generated with it affixed.
353 %l process LINK_SPEC as a spec.
354 %L process LIB_SPEC as a spec.
355 %G process LIBGCC_SPEC as a spec.
356 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
357 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
358 %c process SIGNED_CHAR_SPEC as a spec.
359 %C process CPP_SPEC as a spec. A capital C is actually used here.
360 %1 process CC1_SPEC as a spec.
361 %2 process CC1PLUS_SPEC as a spec.
362 %| output "-" if the input for the current command is coming from a pipe.
363 %* substitute the variable part of a matched option. (See below.)
364 Note that each comma in the substituted string is replaced by
366 %{S} substitutes the -S switch, if that switch was given to CC.
367 If that switch was not specified, this substitutes nothing.
368 Here S is a metasyntactic variable.
369 %{S*} substitutes all the switches specified to CC whose names start
370 with -S. This is used for -o, -D, -I, etc; switches that take
371 arguments. CC considers `-o foo' as being one switch whose
372 name starts with `o'. %{o*} would substitute this text,
373 including the space; thus, two arguments would be generated.
374 %{^S*} likewise, but don't put a blank between a switch and any args.
375 %{S*:X} substitutes X if one or more switches whose names start with -S are
376 specified to CC. Note that the tail part of the -S option
377 (i.e. the part matched by the `*') will be substituted for each
378 occurrence of %* within X.
379 %{S:X} substitutes X, but only if the -S switch was given to CC.
380 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
381 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
382 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
383 %{.S:X} substitutes X, but only if processing a file with suffix S.
384 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
385 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
386 combined with ! and . as above binding stronger than the OR.
387 %(Spec) processes a specification defined in a specs file as *Spec:
388 %[Spec] as above, but put __ around -D arguments
390 The conditional text X in a %{S:X} or %{!S:X} construct may contain
391 other nested % constructs or spaces, or even newlines. They are
392 processed as usual, as described above.
394 The -O, -f, -m, and -W switches are handled specifically in these
395 constructs. If another value of -O or the negated form of a -f, -m, or
396 -W switch is found later in the command line, the earlier switch
397 value is ignored, except with {S*} where S is just one letter; this
398 passes all matching options.
400 The character | at the beginning of the predicate text is used to indicate
401 that a command should be piped to the following command, but only if -pipe
404 Note that it is built into CC which switches take arguments and which
405 do not. You might think it would be useful to generalize this to
406 allow each compiler's spec to say which switches take arguments. But
407 this cannot be done in a consistent fashion. CC cannot even decide
408 which input files have been specified without knowing which switches
409 take arguments, and it must know which input files to compile in order
410 to tell which compilers to run.
412 CC also knows implicitly that arguments starting in `-l' are to be
413 treated as compiler output files, and passed to the linker in their
414 proper position among the other output files. */
416 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
418 /* config.h can define ASM_SPEC to provide extra args to the assembler
419 or extra switch-translations. */
424 /* config.h can define ASM_FINAL_SPEC to run a post processor after
425 the assembler has run. */
426 #ifndef ASM_FINAL_SPEC
427 #define ASM_FINAL_SPEC ""
430 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
431 or extra switch-translations. */
436 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
437 or extra switch-translations. */
442 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
443 or extra switch-translations. */
445 #define CC1PLUS_SPEC ""
448 /* config.h can define LINK_SPEC to provide extra args to the linker
449 or extra switch-translations. */
454 /* config.h can define LIB_SPEC to override the default libraries. */
456 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
459 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
462 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
463 /* Have gcc do the search for libgcc.a. */
464 #define LIBGCC_SPEC "libgcc.a%s"
466 #define LIBGCC_SPEC "-lgcc"
470 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
471 #ifndef STARTFILE_SPEC
472 #define STARTFILE_SPEC \
473 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
476 /* config.h can define SWITCHES_NEED_SPACES to control which options
477 require spaces between the option and the argument. */
478 #ifndef SWITCHES_NEED_SPACES
479 #define SWITCHES_NEED_SPACES ""
482 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
484 #define ENDFILE_SPEC ""
487 /* This spec is used for telling cpp whether char is signed or not. */
488 #ifndef SIGNED_CHAR_SPEC
489 /* Use #if rather than ?:
490 because MIPS C compiler rejects like ?: in initializers. */
491 #if DEFAULT_SIGNED_CHAR
492 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
494 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
499 #define LINKER_NAME "collect2"
502 static char *cpp_spec
= CPP_SPEC
;
503 static char *cpp_predefines
= CPP_PREDEFINES
;
504 static char *cc1_spec
= CC1_SPEC
;
505 static char *cc1plus_spec
= CC1PLUS_SPEC
;
506 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
507 static char *asm_spec
= ASM_SPEC
;
508 static char *asm_final_spec
= ASM_FINAL_SPEC
;
509 static char *link_spec
= LINK_SPEC
;
510 static char *lib_spec
= LIB_SPEC
;
511 static char *libgcc_spec
= LIBGCC_SPEC
;
512 static char *endfile_spec
= ENDFILE_SPEC
;
513 static char *startfile_spec
= STARTFILE_SPEC
;
514 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
515 static char *linker_name_spec
= LINKER_NAME
;
517 /* Some compilers have limits on line lengths, and the multilib_select
518 and/or multilib_matches strings can be very long, so we build them at
520 static struct obstack multilib_obstack
;
521 static char *multilib_select
;
522 static char *multilib_matches
;
523 static char *multilib_defaults
;
524 #include "multilib.h"
526 /* Check whether a particular argument is a default argument. */
528 #ifndef MULTILIB_DEFAULTS
529 #define MULTILIB_DEFAULTS { "" }
532 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
535 struct user_specs
*next
;
536 const char *filename
;
539 static struct user_specs
*user_specs_head
, *user_specs_tail
;
541 /* This defines which switch letters take arguments. */
543 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
544 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
545 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
546 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
547 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
548 || (CHAR) == 'B' || (CHAR) == 'b')
550 #ifndef SWITCH_TAKES_ARG
551 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
554 /* This defines which multi-letter switches take arguments. */
556 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
557 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
558 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
559 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
560 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
561 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
562 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
564 #ifndef WORD_SWITCH_TAKES_ARG
565 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
569 #ifdef HAVE_EXECUTABLE_SUFFIX
570 /* This defines which switches stop a full compilation. */
571 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
572 ((CHAR) == 'c' || (CHAR) == 'S')
574 #ifndef SWITCH_CURTAILS_COMPILATION
575 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
576 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
580 /* Record the mapping from file suffixes for compilation specs. */
584 const char *suffix
; /* Use this compiler for input files
585 whose names end in this suffix. */
587 const char *spec
[4]; /* To use this compiler, concatenate these
588 specs and pass to do_spec. */
591 /* Pointer to a vector of `struct compiler' that gives the spec for
592 compiling a file, based on its suffix.
593 A file that does not end in any of these suffixes will be passed
594 unchanged to the loader and nothing else will be done to it.
596 An entry containing two 0s is used to terminate the vector.
598 If multiple entries match a file, the last matching one is used. */
600 static struct compiler
*compilers
;
602 /* Number of entries in `compilers', not counting the null terminator. */
604 static int n_compilers
;
606 /* The default list of file name suffixes and their compilation specs. */
608 static struct compiler default_compilers
[] =
610 /* Add lists of suffixes of known languages here. If those languages
611 were not present when we built the driver, we will hit these copies
612 and be given a more meaningful error than "file not used since
613 linking is not done". */
614 {".m", {"#Objective-C"}},
615 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
616 {".c++", {"#C++"}}, {".C", {"#C++"}},
617 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
618 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
619 {".fpp", {"#Fortran"}},
620 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
621 /* Next come the entries for C. */
626 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
627 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
628 %{C:%{!E:%eGNU C does not support -C without using -E}}\
629 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
630 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
631 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
632 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
633 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
634 %{ffast-math:-D__FAST_MATH__}\
635 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
636 %{traditional} %{ftraditional:-traditional}\
637 %{traditional-cpp:-traditional}\
638 %{fleading-underscore} %{fno-leading-underscore}\
639 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
640 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
641 %{!E:%{!M:%{!MM:cc1 %i %1 \
642 %{std*} %{nostdinc*} %{A*} %{I*} %I\
643 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
644 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
645 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
646 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
647 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
648 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
649 %{ffast-math:-D__FAST_MATH__}\
650 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
651 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
652 %{H} %C %{D*} %{U*} %{i*} %Z\
653 %{ftraditional:-traditional}\
654 %{traditional-cpp:-traditional}\
655 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
656 %{aux-info*} %{Qn:-fno-ident}\
658 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
659 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
660 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
662 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
663 %{!pipe:%g.s} %A\n }}}}"
664 #else /* ! USE_CPPLIB */
665 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
666 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
667 %{C:%{!E:%eGNU C does not support -C without using -E}}\
668 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
669 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
670 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
671 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
672 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
673 %{ffast-math:-D__FAST_MATH__}\
674 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
675 %{traditional} %{ftraditional:-traditional}\
676 %{traditional-cpp:-traditional}\
677 %{fleading-underscore} %{fno-leading-underscore}\
678 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
679 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
680 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
681 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
682 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
683 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
684 %{aux-info*} %{Qn:-fno-ident}\
686 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
687 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
689 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
690 %{!pipe:%g.s} %A\n }}}}"
691 #endif /* ! USE_CPPLIB */
694 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
695 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
696 %{C:%{!E:%eGNU C does not support -C without using -E}}\
697 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
698 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
699 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
700 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
701 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
702 %{ffast-math:-D__FAST_MATH__}\
703 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
704 %{traditional} %{ftraditional:-traditional}\
705 %{traditional-cpp:-traditional}\
706 %{fleading-underscore} %{fno-leading-underscore}\
707 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
709 %{!E:%e-E required when input is from standard input}"}},
710 {".h", {"@c-header"}},
712 {"%{!E:%eCompilation of header file requested} \
713 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
714 %{C:%{!E:%eGNU C does not support -C without using -E}}\
715 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
716 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
717 %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
718 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
719 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
720 %{ffast-math:-D__FAST_MATH__}\
721 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
722 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
723 %{traditional} %{ftraditional:-traditional}\
724 %{traditional-cpp:-traditional}\
725 %{fleading-underscore} %{fno-leading-underscore}\
726 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
728 {".i", {"@cpp-output"}},
730 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
731 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
732 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
733 %{aux-info*} %{Qn:-fno-ident} -fpreprocessed\
734 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
735 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
737 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
738 %{!pipe:%g.s} %A\n }}}}"}},
739 {".s", {"@assembler"}},
741 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
742 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
744 {".S", {"@assembler-with-cpp"}},
745 {"@assembler-with-cpp",
746 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
747 %{C:%{!E:%eGNU C does not support -C without using -E}}\
748 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
749 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
750 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
751 %{ffast-math:-D__FAST_MATH__}\
752 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
753 %{traditional} %{ftraditional:-traditional}\
754 %{traditional-cpp:-traditional}\
755 %{fleading-underscore} %{fno-leading-underscore}\
756 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
757 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
758 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
759 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
760 %{!pipe:%g.s} %A\n }}}}"}},
762 /* Mark end of table */
766 /* Number of elements in default_compilers, not counting the terminator. */
768 static int n_default_compilers
769 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
771 /* Here is the spec for running the linker, after compiling all files. */
773 /* -u* was put back because both BSD and SysV seem to support it. */
774 /* %{static:} simply prevents an error message if the target machine
775 doesn't handle -static. */
776 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
777 scripts which exist in user specified directories, or in standard
779 #ifdef LINK_COMMAND_SPEC
780 /* Provide option to override link_command_spec from machine specific
781 configuration files. */
782 static const char *link_command_spec
=
785 #ifdef LINK_LIBGCC_SPECIAL
786 /* Don't generate -L options. */
787 static const char *link_command_spec
= "\
789 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
790 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
791 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
793 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
794 {"--pass
-exit
-codes
", "-pass
-exit
-codes
", 0},
795 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
800 static const char *link_command_spec
= "\
802 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
803 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
804 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
805 %{static:} %{L*} %D %o\
806 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
807 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
813 /* A vector of options to give to the linker.
814 These options are accumulated by %x,
815 and substituted into the linker command with %X. */
816 static int n_linker_options
;
817 static char **linker_options
;
819 /* A vector of options to give to the assembler.
820 These options are accumulated by -Wa,
821 and substituted into the assembler command with %Y. */
822 static int n_assembler_options
;
823 static char **assembler_options
;
825 /* A vector of options to give to the preprocessor.
826 These options are accumulated by -Wp,
827 and substituted into the preprocessor command with %Z. */
828 static int n_preprocessor_options
;
829 static char **preprocessor_options
;
831 /* Define how to map long options into short ones. */
833 /* This structure describes one mapping. */
836 /* The long option's name. */
838 /* The equivalent short option. */
839 const char *equivalent
;
840 /* Argument info. A string of flag chars; NULL equals no options.
841 a => argument required.
842 o => argument optional.
843 j => join argument to equivalent, making one word.
844 * => require other text after NAME as an argument. */
845 const char *arg_info
;
848 /* This is the table of mappings. Mappings are tried sequentially
849 for each option encountered; the first one that matches, wins. */
851 struct option_map option_map
[] =
853 {"--all-warnings", "-Wall", 0},
854 {"--ansi", "-ansi", 0},
855 {"--assemble", "-S", 0},
856 {"--assert", "-A", "a"},
857 {"--classpath", "-fclasspath=", "aj"},
858 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
859 {"--comments", "-C", 0},
860 {"--compile", "-c", 0},
861 {"--debug", "-g", "oj"},
862 {"--define-macro", "-D", "aj"},
863 {"--dependencies", "-M", 0},
864 {"--dump", "-d", "a"},
865 {"--dumpbase", "-dumpbase", "a"},
866 {"--entry", "-e", 0},
867 {"--extra-warnings", "-W", 0},
868 {"--for-assembler", "-Wa", "a"},
869 {"--for-linker", "-Xlinker", "a"},
870 {"--force-link", "-u", "a"},
871 {"--imacros", "-imacros", "a"},
872 {"--include", "-include", "a"},
873 {"--include-barrier", "-I-", 0},
874 {"--include-directory", "-I", "aj"},
875 {"--include-directory-after", "-idirafter", "a"},
876 {"--include-prefix", "-iprefix", "a"},
877 {"--include-with-prefix", "-iwithprefix", "a"},
878 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
879 {"--include-with-prefix-after", "-iwithprefix", "a"},
880 {"--language", "-x", "a"},
881 {"--library-directory", "-L", "a"},
882 {"--machine", "-m", "aj"},
883 {"--machine-", "-m", "*j"},
884 {"--no-line-commands", "-P", 0},
885 {"--no-precompiled-includes", "-noprecomp", 0},
886 {"--no-standard-includes", "-nostdinc", 0},
887 {"--no-standard-libraries", "-nostdlib", 0},
888 {"--no-warnings", "-w", 0},
889 {"--optimize", "-O", "oj"},
890 {"--output", "-o", "a"},
891 {"--output-class-directory", "-foutput-class-dir=", "ja"},
892 {"--pedantic", "-pedantic", 0},
893 {"--pedantic-errors", "-pedantic-errors", 0},
894 {"--pipe", "-pipe", 0},
895 {"--prefix", "-B", "a"},
896 {"--preprocess", "-E", 0},
897 {"--print-search-dirs", "-print-search-dirs", 0},
898 {"--print-file-name", "-print-file-name=", "aj"},
899 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
900 {"--print-missing-file-dependencies", "-MG", 0},
901 {"--print-multi-lib", "-print-multi-lib", 0},
902 {"--print-multi-directory", "-print-multi-directory", 0},
903 {"--print-prog-name", "-print-prog-name=", "aj"},
904 {"--profile", "-p", 0},
905 {"--profile-blocks", "-a", 0},
906 {"--quiet", "-q", 0},
907 {"--save-temps", "-save-temps", 0},
908 {"--shared", "-shared", 0},
909 {"--silent", "-q", 0},
910 {"--specs", "-specs=", "aj"},
911 {"--static", "-static", 0},
912 {"--std", "-std=", "aj"},
913 {"--symbolic", "-symbolic", 0},
914 {"--target", "-b", "a"},
915 {"--time", "-time", 0},
916 {"--trace-includes", "-H", 0},
917 {"--traditional", "-traditional", 0},
918 {"--traditional-cpp", "-traditional-cpp", 0},
919 {"--trigraphs", "-trigraphs", 0},
920 {"--undefine-macro", "-U", "aj"},
921 {"--use-version", "-V", "a"},
922 {"--user-dependencies", "-MM", 0},
923 {"--verbose", "-v", 0},
924 {"--version", "-dumpversion", 0},
925 {"--warn-", "-W", "*j"},
926 {"--write-dependencies", "-MD", 0},
927 {"--write-user-dependencies", "-MMD", 0},
931 /* Translate the options described by *ARGCP and *ARGVP.
932 Make a new vector and store it back in *ARGVP,
933 and store its length in *ARGVC. */
936 translate_options (argcp
, argvp
)
942 const char **argv
= *argvp
;
944 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
948 newv
[newindex
++] = argv
[i
++];
952 /* Translate -- options. */
953 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
956 /* Find a mapping that applies to this option. */
957 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
959 size_t optlen
= strlen (option_map
[j
].name
);
960 size_t arglen
= strlen (argv
[i
]);
961 size_t complen
= arglen
> optlen
? optlen
: arglen
;
962 const char *arginfo
= option_map
[j
].arg_info
;
967 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
975 k
< sizeof (option_map
) / sizeof (option_map
[0]);
977 if (strlen (option_map
[k
].name
) >= arglen
978 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
980 error ("Ambiguous abbreviation %s", argv
[i
]);
984 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
990 /* If the option has an argument, accept that. */
991 if (argv
[i
][optlen
] == '=')
992 arg
= argv
[i
] + optlen
+ 1;
994 /* If this mapping requires extra text at end of name,
995 accept that as "argument". */
996 else if (index (arginfo
, '*') != 0)
997 arg
= argv
[i
] + optlen
;
999 /* Otherwise, extra text at end means mismatch.
1000 Try other mappings. */
1005 else if (index (arginfo
, '*') != 0)
1007 error ("Incomplete `%s' option", option_map
[j
].name
);
1011 /* Handle arguments. */
1012 if (index (arginfo
, 'a') != 0)
1018 error ("Missing argument to `%s' option",
1019 option_map
[j
].name
);
1026 else if (index (arginfo
, '*') != 0)
1028 else if (index (arginfo
, 'o') == 0)
1031 error ("Extraneous argument to `%s' option",
1032 option_map
[j
].name
);
1036 /* Store the translation as one argv elt or as two. */
1037 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1038 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1042 newv
[newindex
++] = option_map
[j
].equivalent
;
1043 newv
[newindex
++] = arg
;
1046 newv
[newindex
++] = option_map
[j
].equivalent
;
1054 /* Handle old-fashioned options--just copy them through,
1055 with their arguments. */
1056 else if (argv
[i
][0] == '-')
1058 const char *p
= argv
[i
] + 1;
1062 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1063 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1064 else if (WORD_SWITCH_TAKES_ARG (p
))
1065 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1066 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1069 else if (! strcmp (p
, "Xlinker"))
1072 /* Watch out for an option at the end of the command line that
1073 is missing arguments, and avoid skipping past the end of the
1075 if (nskip
+ i
> argc
)
1080 newv
[newindex
++] = argv
[i
++];
1085 /* Ordinary operands, or +e options. */
1086 newv
[newindex
++] = argv
[i
++];
1101 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1102 be considered whitespace. */
1103 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1105 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1109 while (*p
!= '\n') p
++;
1119 /* Structure to keep track of the specs that have been defined so far.
1120 These are accessed using %(specname) or %[specname] in a compiler
1125 /* The following 2 fields must be first */
1126 /* to allow EXTRA_SPECS to be initialized */
1127 char *name
; /* name of the spec. */
1128 char *ptr
; /* available ptr if no static pointer */
1130 /* The following fields are not initialized */
1131 /* by EXTRA_SPECS */
1132 char **ptr_spec
; /* pointer to the spec itself. */
1133 struct spec_list
*next
; /* Next spec in linked list. */
1134 int name_len
; /* length of the name */
1135 int alloc_p
; /* whether string was allocated */
1138 #define INIT_STATIC_SPEC(NAME,PTR) \
1139 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1141 /* List of statically defined specs */
1142 static struct spec_list static_specs
[] = {
1143 INIT_STATIC_SPEC ("asm", &asm_spec
),
1144 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1145 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1146 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1147 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1148 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1149 INIT_STATIC_SPEC ("link", &link_spec
),
1150 INIT_STATIC_SPEC ("lib", &lib_spec
),
1151 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1152 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1153 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1154 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1155 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1156 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1157 INIT_STATIC_SPEC ("version", &compiler_version
),
1158 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1159 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1160 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1161 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1162 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1165 #ifdef EXTRA_SPECS /* additional specs needed */
1166 /* Structure to keep track of just the first two args of a spec_list.
1167 That is all that the EXTRA_SPECS macro gives us. */
1174 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1175 static struct spec_list
* extra_specs
= (struct spec_list
*)0;
1178 /* List of dynamically allocates specs that have been defined so far. */
1180 static struct spec_list
*specs
= (struct spec_list
*)0;
1183 /* Initialize the specs lookup routines. */
1188 struct spec_list
*next
= (struct spec_list
*)0;
1189 struct spec_list
*sl
= (struct spec_list
*)0;
1193 return; /* already initialized */
1196 notice ("Using builtin specs.\n");
1199 extra_specs
= (struct spec_list
*)
1200 xcalloc (sizeof(struct spec_list
),
1201 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1203 for (i
= (sizeof(extra_specs_1
) / sizeof(extra_specs_1
[0])) - 1; i
>= 0; i
--)
1205 sl
= &extra_specs
[i
];
1206 sl
->name
= extra_specs_1
[i
].name
;
1207 sl
->ptr
= extra_specs_1
[i
].ptr
;
1209 sl
->name_len
= strlen (sl
->name
);
1210 sl
->ptr_spec
= &sl
->ptr
;
1215 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1217 sl
= &static_specs
[i
];
1226 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1227 removed; If the spec starts with a + then SPEC is added to the end of the
1231 set_spec (name
, spec
)
1235 struct spec_list
*sl
;
1237 int name_len
= strlen (name
);
1240 /* If this is the first call, initialize the statically allocated specs */
1243 struct spec_list
*next
= (struct spec_list
*)0;
1244 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1247 sl
= &static_specs
[i
];
1254 /* See if the spec already exists */
1255 for (sl
= specs
; sl
; sl
= sl
->next
)
1256 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1261 /* Not found - make it */
1262 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1263 sl
->name
= xstrdup (name
);
1264 sl
->name_len
= name_len
;
1265 sl
->ptr_spec
= &sl
->ptr
;
1267 *(sl
->ptr_spec
) = "";
1272 old_spec
= *(sl
->ptr_spec
);
1273 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1274 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1279 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1282 /* Free the old spec */
1283 if (old_spec
&& sl
->alloc_p
)
1289 /* Accumulate a command (program name and args), and run it. */
1291 /* Vector of pointers to arguments in the current line of specifications. */
1293 static char **argbuf
;
1295 /* Number of elements allocated in argbuf. */
1297 static int argbuf_length
;
1299 /* Number of elements in argbuf currently in use (containing args). */
1301 static int argbuf_index
;
1303 /* We want this on by default all the time now. */
1304 #define MKTEMP_EACH_FILE
1306 #ifdef MKTEMP_EACH_FILE
1308 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1311 static struct temp_name
{
1312 const char *suffix
; /* suffix associated with the code. */
1313 int length
; /* strlen (suffix). */
1314 int unique
; /* Indicates whether %g or %u/%U was used. */
1315 const char *filename
; /* associated filename. */
1316 int filename_length
; /* strlen (filename). */
1317 struct temp_name
*next
;
1322 /* Number of commands executed so far. */
1324 static int execution_count
;
1326 /* Number of commands that exited with a signal. */
1328 static int signal_count
;
1330 /* Name with which this program was invoked. */
1332 static const char *programname
;
1334 /* Structures to keep track of prefixes to try when looking for files. */
1338 char *prefix
; /* String to prepend to the path. */
1339 struct prefix_list
*next
; /* Next in linked list. */
1340 int require_machine_suffix
; /* Don't use without machine_suffix. */
1341 /* 2 means try both machine_suffix and just_machine_suffix. */
1342 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1347 struct prefix_list
*plist
; /* List of prefixes to try */
1348 int max_len
; /* Max length of a prefix in PLIST */
1349 const char *name
; /* Name of this list (used in config stuff) */
1352 /* List of prefixes to try when looking for executables. */
1354 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1356 /* List of prefixes to try when looking for startup (crt0) files. */
1358 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1360 /* List of prefixes to try when looking for include files. */
1362 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1364 /* Suffix to attach to directories searched for commands.
1365 This looks like `MACHINE/VERSION/'. */
1367 static const char *machine_suffix
= 0;
1369 /* Suffix to attach to directories searched for commands.
1370 This is just `MACHINE/'. */
1372 static const char *just_machine_suffix
= 0;
1374 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1376 static const char *gcc_exec_prefix
;
1378 /* Default prefixes to attach to command names. */
1380 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1381 #undef MD_EXEC_PREFIX
1382 #undef MD_STARTFILE_PREFIX
1383 #undef MD_STARTFILE_PREFIX_1
1386 #ifndef STANDARD_EXEC_PREFIX
1387 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1388 #endif /* !defined STANDARD_EXEC_PREFIX */
1390 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1391 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1392 #ifdef MD_EXEC_PREFIX
1393 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1396 #ifndef STANDARD_STARTFILE_PREFIX
1397 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1398 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1400 #ifdef MD_STARTFILE_PREFIX
1401 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1403 #ifdef MD_STARTFILE_PREFIX_1
1404 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1406 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1407 static const char *standard_startfile_prefix_1
= "/lib/";
1408 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1410 #ifndef TOOLDIR_BASE_PREFIX
1411 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1413 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1414 static const char *tooldir_prefix
;
1416 #ifndef STANDARD_BINDIR_PREFIX
1417 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1419 static char *standard_bindir_prefix
= STANDARD_BINDIR_PREFIX
;
1421 /* Subdirectory to use for locating libraries. Set by
1422 set_multilib_dir based on the compilation options. */
1424 static const char *multilib_dir
;
1426 /* Clear out the vector of arguments (after a command is executed). */
1434 /* Add one argument to the vector at the end.
1435 This is done when a space is seen or at the end of the line.
1436 If DELETE_ALWAYS is nonzero, the arg is a filename
1437 and the file should be deleted eventually.
1438 If DELETE_FAILURE is nonzero, the arg is a filename
1439 and the file should be deleted if this compilation fails. */
1442 store_arg (arg
, delete_always
, delete_failure
)
1444 int delete_always
, delete_failure
;
1446 if (argbuf_index
+ 1 == argbuf_length
)
1448 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1450 argbuf
[argbuf_index
++] = arg
;
1451 argbuf
[argbuf_index
] = 0;
1453 if (delete_always
|| delete_failure
)
1454 record_temp_file (arg
, delete_always
, delete_failure
);
1457 /* Read compilation specs from a file named FILENAME,
1458 replacing the default ones.
1460 A suffix which starts with `*' is a definition for
1461 one of the machine-specific sub-specs. The "suffix" should be
1462 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1463 The corresponding spec is stored in asm_spec, etc.,
1464 rather than in the `compilers' vector.
1466 Anything invalid in the file is a fatal error. */
1469 read_specs (filename
, main_p
)
1470 const char *filename
;
1475 struct stat statbuf
;
1480 notice ("Reading specs from %s\n", filename
);
1482 /* Open and stat the file. */
1483 desc
= open (filename
, O_RDONLY
, 0);
1485 pfatal_with_name (filename
);
1486 if (stat (filename
, &statbuf
) < 0)
1487 pfatal_with_name (filename
);
1489 /* Read contents of file into BUFFER. */
1490 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1491 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1493 pfatal_with_name (filename
);
1494 buffer
[readlen
] = 0;
1497 /* Scan BUFFER for specs, putting them in the vector. */
1503 char *in
, *out
, *p1
, *p2
, *p3
;
1505 /* Advance P in BUFFER to the next nonblank nocomment line. */
1506 p
= skip_whitespace (p
);
1510 /* Is this a special command that starts with '%'? */
1511 /* Don't allow this for the main specs file, since it would
1512 encourage people to overwrite it. */
1513 if (*p
== '%' && !main_p
)
1516 while (*p
&& *p
!= '\n')
1519 p
++; /* Skip '\n' */
1521 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1522 && (p1
[sizeof "%include" - 1] == ' '
1523 || p1
[sizeof "%include" - 1] == '\t'))
1527 p1
+= sizeof ("%include");
1528 while (*p1
== ' ' || *p1
== '\t')
1531 if (*p1
++ != '<' || p
[-2] != '>')
1532 fatal ("specs %%include syntax malformed after %ld characters",
1533 (long) (p1
- buffer
+ 1));
1536 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1537 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1540 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1541 && (p1
[sizeof "%include_noerr" - 1] == ' '
1542 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1546 p1
+= sizeof "%include_noerr";
1547 while (*p1
== ' ' || *p1
== '\t') p1
++;
1549 if (*p1
++ != '<' || p
[-2] != '>')
1550 fatal ("specs %%include syntax malformed after %ld characters",
1551 (long) (p1
- buffer
+ 1));
1554 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1556 read_specs (new_filename
, FALSE
);
1557 else if (verbose_flag
)
1558 notice ("Could not find specs file %s\n", p1
);
1561 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1562 && (p1
[sizeof "%rename" - 1] == ' '
1563 || p1
[sizeof "%rename" - 1] == '\t'))
1566 struct spec_list
*sl
;
1568 /* Get original name */
1569 p1
+= sizeof "%rename";
1570 while (*p1
== ' ' || *p1
== '\t')
1573 if (! ISALPHA ((unsigned char)*p1
))
1574 fatal ("specs %%rename syntax malformed after %ld characters",
1575 (long) (p1
- buffer
));
1578 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1581 if (*p2
!= ' ' && *p2
!= '\t')
1582 fatal ("specs %%rename syntax malformed after %ld characters",
1583 (long) (p2
- buffer
));
1587 while (*p2
== ' ' || *p2
== '\t')
1590 if (! ISALPHA ((unsigned char)*p2
))
1591 fatal ("specs %%rename syntax malformed after %ld characters",
1592 (long) (p2
- buffer
));
1594 /* Get new spec name */
1596 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1600 fatal ("specs %%rename syntax malformed after %ld characters",
1601 (long) (p3
- buffer
));
1604 for (sl
= specs
; sl
; sl
= sl
->next
)
1605 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1609 fatal ("specs %s spec was not found to be renamed", p1
);
1611 if (strcmp (p1
, p2
) == 0)
1616 notice ("rename spec %s to %s\n", p1
, p2
);
1618 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1622 set_spec (p2
, *(sl
->ptr_spec
));
1624 free (*(sl
->ptr_spec
));
1626 *(sl
->ptr_spec
) = "";
1631 fatal ("specs unknown %% command after %ld characters",
1632 (long) (p1
- buffer
));
1635 /* Find the colon that should end the suffix. */
1637 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1640 /* The colon shouldn't be missing. */
1642 fatal ("specs file malformed after %ld characters",
1643 (long) (p1
- buffer
));
1645 /* Skip back over trailing whitespace. */
1647 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1650 /* Copy the suffix to a string. */
1651 suffix
= save_string (p
, p2
- p
);
1652 /* Find the next line. */
1653 p
= skip_whitespace (p1
+ 1);
1655 fatal ("specs file malformed after %ld characters",
1656 (long) (p
- buffer
));
1659 /* Find next blank line or end of string. */
1660 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1663 /* Specs end at the blank line and do not include the newline. */
1664 spec
= save_string (p
, p1
- p
);
1667 /* Delete backslash-newline sequences from the spec. */
1672 if (in
[0] == '\\' && in
[1] == '\n')
1674 else if (in
[0] == '#')
1675 while (*in
&& *in
!= '\n')
1683 if (suffix
[0] == '*')
1685 if (! strcmp (suffix
, "*link_command"))
1686 link_command_spec
= spec
;
1688 set_spec (suffix
+ 1, spec
);
1692 /* Add this pair to the vector. */
1694 = ((struct compiler
*)
1695 xrealloc (compilers
,
1696 (n_compilers
+ 2) * sizeof (struct compiler
)));
1698 compilers
[n_compilers
].suffix
= suffix
;
1699 memset (compilers
[n_compilers
].spec
, 0,
1700 sizeof compilers
[n_compilers
].spec
);
1701 compilers
[n_compilers
].spec
[0] = spec
;
1703 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1707 link_command_spec
= spec
;
1710 if (link_command_spec
== 0)
1711 fatal ("spec file has no spec for linking");
1714 /* Record the names of temporary files we tell compilers to write,
1715 and delete them at the end of the run. */
1717 /* This is the common prefix we use to make temp file names.
1718 It is chosen once for each run of this program.
1719 It is substituted into a spec by %g.
1720 Thus, all temp file names contain this prefix.
1721 In practice, all temp file names start with this prefix.
1723 This prefix comes from the envvar TMPDIR if it is defined;
1724 otherwise, from the P_tmpdir macro if that is defined;
1725 otherwise, in /usr/tmp or /tmp;
1726 or finally the current directory if all else fails. */
1728 static const char *temp_filename
;
1730 /* Length of the prefix. */
1732 static int temp_filename_length
;
1734 /* Define the list of temporary files to delete. */
1739 struct temp_file
*next
;
1742 /* Queue of files to delete on success or failure of compilation. */
1743 static struct temp_file
*always_delete_queue
;
1744 /* Queue of files to delete on failure of compilation. */
1745 static struct temp_file
*failure_delete_queue
;
1747 /* Record FILENAME as a file to be deleted automatically.
1748 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1749 otherwise delete it in any case.
1750 FAIL_DELETE nonzero means delete it if a compilation step fails;
1751 otherwise delete it in any case. */
1754 record_temp_file (filename
, always_delete
, fail_delete
)
1755 const char *filename
;
1759 register char * const name
= xstrdup (filename
);
1763 register struct temp_file
*temp
;
1764 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1765 if (! strcmp (name
, temp
->name
))
1768 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1769 temp
->next
= always_delete_queue
;
1771 always_delete_queue
= temp
;
1778 register struct temp_file
*temp
;
1779 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1780 if (! strcmp (name
, temp
->name
))
1783 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1784 temp
->next
= failure_delete_queue
;
1786 failure_delete_queue
= temp
;
1792 /* Delete all the temporary files whose names we previously recorded. */
1795 delete_if_ordinary (name
)
1802 printf ("Delete %s? (y or n) ", name
);
1806 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1809 if (i
== 'y' || i
== 'Y')
1811 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1812 if (unlink (name
) < 0)
1814 perror_with_name (name
);
1818 delete_temp_files ()
1820 register struct temp_file
*temp
;
1822 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1823 delete_if_ordinary (temp
->name
);
1824 always_delete_queue
= 0;
1827 /* Delete all the files to be deleted on error. */
1830 delete_failure_queue ()
1832 register struct temp_file
*temp
;
1834 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1835 delete_if_ordinary (temp
->name
);
1839 clear_failure_queue ()
1841 failure_delete_queue
= 0;
1844 /* Routine to add variables to the environment. We do this to pass
1845 the pathname of the gcc driver, and the directories search to the
1846 collect2 program, which is being run as ld. This way, we can be
1847 sure of executing the right compiler when collect2 wants to build
1848 constructors and destructors. Since the environment variables we
1849 use come from an obstack, we don't have to worry about allocating
1858 #ifndef VMS /* nor about VMS */
1860 extern char **environ
;
1861 char **old_environ
= environ
;
1865 int str_len
= strlen (str
);
1869 while ((ch
= *p
++) != '\0' && ch
!= '=')
1875 /* Search for replacing an existing environment variable, and
1876 count the number of total environment variables. */
1877 for (envp
= old_environ
; *envp
; envp
++)
1880 if (!strncmp (str
, *envp
, name_len
))
1887 /* Add a new environment variable */
1888 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1890 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1891 sizeof (char *) * (num_envs
+1));
1896 #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
));
1919 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1921 int len
= strlen (pprefix
->prefix
);
1925 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1928 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1931 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1932 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1935 if (just_machine_suffix
1936 && pprefix
->require_machine_suffix
== 2
1938 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1941 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1944 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1945 obstack_grow (&collect_obstack
, just_machine_suffix
,
1949 if (! pprefix
->require_machine_suffix
)
1952 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1955 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1959 obstack_1grow (&collect_obstack
, '\0');
1960 return obstack_finish (&collect_obstack
);
1963 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1967 putenv_from_prefixes (paths
, env_var
)
1968 struct path_prefix
*paths
;
1969 const char *env_var
;
1971 putenv (build_search_list (paths
, env_var
, 1));
1976 /* FIXME: the location independence code for VMS is hairier than this,
1977 and hasn't been written. */
1979 /* Split a filename into component directories. */
1982 split_directories (name
, ptr_num_dirs
)
1991 /* Count the number of directories. Special case MSDOS disk names as part
1992 of the initial directory. */
1994 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1995 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2000 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2002 while ((ch
= *p
++) != '\0')
2004 if (IS_DIR_SEPARATOR (ch
))
2007 while (IS_DIR_SEPARATOR (*p
))
2012 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2014 /* Now copy the directory parts. */
2017 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2018 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2020 dirs
[num_dirs
++] = save_string (p
, 3);
2023 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2026 while ((ch
= *p
++) != '\0')
2028 if (IS_DIR_SEPARATOR (ch
))
2030 while (IS_DIR_SEPARATOR (*p
))
2033 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2039 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2041 dirs
[num_dirs
] = NULL_PTR
;
2043 *ptr_num_dirs
= num_dirs
;
2048 /* Release storage held by split directories. */
2051 free_split_directories (dirs
)
2056 while (dirs
[i
] != NULL_PTR
)
2059 free ((char *)dirs
);
2062 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2063 to PREFIX starting with the directory portion of PROGNAME and a relative
2064 pathname of the difference between BIN_PREFIX and PREFIX.
2066 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2067 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2068 function will return /reg/green/blue/../omega.
2070 If no relative prefix can be found, return NULL. */
2073 make_relative_prefix (progname
, bin_prefix
, prefix
)
2074 const char *progname
;
2075 const char *bin_prefix
;
2078 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2079 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2082 prog_dirs
= split_directories (progname
, &prog_num
);
2083 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2085 /* If there is no full pathname, try to find the program by checking in each
2086 of the directories specified in the PATH environment variable. */
2091 GET_ENV_PATH_LIST (temp
, "PATH");
2094 char *startp
, *endp
;
2095 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2097 startp
= endp
= temp
;
2100 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2105 nstore
[1] = DIR_SEPARATOR
;
2110 strncpy (nstore
, startp
, endp
-startp
);
2111 if (! IS_DIR_SEPARATOR (endp
[-1]))
2113 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2114 nstore
[endp
-startp
+1] = 0;
2117 nstore
[endp
-startp
] = 0;
2119 strcat (nstore
, progname
);
2120 if (! access (nstore
, X_OK
)
2121 #ifdef HAVE_EXECUTABLE_SUFFIX
2122 || ! access (strcat (nstore
, EXECUTABLE_SUFFIX
), X_OK
)
2126 free_split_directories (prog_dirs
);
2128 prog_dirs
= split_directories (progname
, &prog_num
);
2134 endp
= startp
= endp
+ 1;
2142 /* Remove the program name from comparison of directory names. */
2145 /* Determine if the compiler is installed in the standard location, and if
2146 so, we don't need to specify relative directories. Also, if argv[0]
2147 doesn't contain any directory specifiers, there is not much we can do. */
2149 if (prog_num
== bin_num
)
2151 for (i
= 0; i
< bin_num
; i
++)
2153 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2157 if (prog_num
<= 0 || i
== bin_num
)
2160 free_split_directories (prog_dirs
);
2161 free_split_directories (bin_dirs
);
2162 prog_dirs
= bin_dirs
= (char **)0;
2167 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2169 /* Find how many directories are in common between bin_prefix & prefix */
2170 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2171 for (common
= 0; common
< n
; common
++)
2173 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2177 /* If there are no common directories, there can be no relative prefix. */
2180 free_split_directories (prog_dirs
);
2181 free_split_directories (bin_dirs
);
2182 free_split_directories (prefix_dirs
);
2186 /* Build up the pathnames in argv[0]. */
2187 for (i
= 0; i
< prog_num
; i
++)
2188 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2190 /* Now build up the ..'s. */
2191 for (i
= common
; i
< n
; i
++)
2193 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
)-1);
2194 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2197 /* Put in directories to move over to prefix. */
2198 for (i
= common
; i
< prefix_num
; i
++)
2199 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2201 free_split_directories (prog_dirs
);
2202 free_split_directories (bin_dirs
);
2203 free_split_directories (prefix_dirs
);
2205 obstack_1grow (&obstack
, '\0');
2206 return obstack_finish (&obstack
);
2210 /* Check whether NAME can be accessed in MODE. This is like access,
2211 except that it never considers directories to be executable. */
2214 access_check (name
, mode
)
2222 if (stat (name
, &st
) < 0
2223 || S_ISDIR (st
.st_mode
))
2227 return access (name
, mode
);
2230 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2231 access to check permissions.
2232 Return 0 if not found, otherwise return its name, allocated with malloc. */
2235 find_a_file (pprefix
, name
, mode
)
2236 struct path_prefix
*pprefix
;
2241 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
2242 struct prefix_list
*pl
;
2243 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2245 #ifdef DEFAULT_ASSEMBLER
2246 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2247 return xstrdup (DEFAULT_ASSEMBLER
);
2250 #ifdef DEFAULT_LINKER
2251 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2252 return xstrdup (DEFAULT_LINKER
);
2256 len
+= strlen (machine_suffix
);
2258 temp
= xmalloc (len
);
2260 /* Determine the filename to execute (special case for absolute paths). */
2262 if (IS_DIR_SEPARATOR (*name
)
2263 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2264 /* Check for disk name on MS-DOS-based systems. */
2265 || (name
[0] && name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2269 if (access (name
, mode
) == 0)
2271 strcpy (temp
, name
);
2276 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2280 /* Some systems have a suffix for executable files.
2281 So try appending that first. */
2282 if (file_suffix
[0] != 0)
2284 strcpy (temp
, pl
->prefix
);
2285 strcat (temp
, machine_suffix
);
2286 strcat (temp
, name
);
2287 strcat (temp
, file_suffix
);
2288 if (access_check (temp
, mode
) == 0)
2290 if (pl
->used_flag_ptr
!= 0)
2291 *pl
->used_flag_ptr
= 1;
2296 /* Now try just the name. */
2297 strcpy (temp
, pl
->prefix
);
2298 strcat (temp
, machine_suffix
);
2299 strcat (temp
, name
);
2300 if (access_check (temp
, mode
) == 0)
2302 if (pl
->used_flag_ptr
!= 0)
2303 *pl
->used_flag_ptr
= 1;
2308 /* Certain prefixes are tried with just the machine type,
2309 not the version. This is used for finding as, ld, etc. */
2310 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2312 /* Some systems have a suffix for executable files.
2313 So try appending that first. */
2314 if (file_suffix
[0] != 0)
2316 strcpy (temp
, pl
->prefix
);
2317 strcat (temp
, just_machine_suffix
);
2318 strcat (temp
, name
);
2319 strcat (temp
, file_suffix
);
2320 if (access_check (temp
, mode
) == 0)
2322 if (pl
->used_flag_ptr
!= 0)
2323 *pl
->used_flag_ptr
= 1;
2328 strcpy (temp
, pl
->prefix
);
2329 strcat (temp
, just_machine_suffix
);
2330 strcat (temp
, name
);
2331 if (access_check (temp
, mode
) == 0)
2333 if (pl
->used_flag_ptr
!= 0)
2334 *pl
->used_flag_ptr
= 1;
2339 /* Certain prefixes can't be used without the machine suffix
2340 when the machine or version is explicitly specified. */
2341 if (! pl
->require_machine_suffix
)
2343 /* Some systems have a suffix for executable files.
2344 So try appending that first. */
2345 if (file_suffix
[0] != 0)
2347 strcpy (temp
, pl
->prefix
);
2348 strcat (temp
, name
);
2349 strcat (temp
, file_suffix
);
2350 if (access_check (temp
, mode
) == 0)
2352 if (pl
->used_flag_ptr
!= 0)
2353 *pl
->used_flag_ptr
= 1;
2358 strcpy (temp
, pl
->prefix
);
2359 strcat (temp
, name
);
2360 if (access_check (temp
, mode
) == 0)
2362 if (pl
->used_flag_ptr
!= 0)
2363 *pl
->used_flag_ptr
= 1;
2373 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2374 at the start of the list, otherwise it goes at the end.
2376 If WARN is nonzero, we will warn if no file is found
2377 through this prefix. WARN should point to an int
2378 which will be set to 1 if this entry is used.
2380 COMPONENT is the value to be passed to update_path.
2382 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2383 the complete value of machine_suffix.
2384 2 means try both machine_suffix and just_machine_suffix. */
2387 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2388 struct path_prefix
*pprefix
;
2390 const char *component
;
2392 int require_machine_suffix
;
2395 struct prefix_list
*pl
, **prev
;
2398 if (! first
&& pprefix
->plist
)
2400 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2405 prev
= &pprefix
->plist
;
2407 /* Keep track of the longest prefix */
2409 prefix
= update_path (prefix
, component
);
2410 len
= strlen (prefix
);
2411 if (len
> pprefix
->max_len
)
2412 pprefix
->max_len
= len
;
2414 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2415 pl
->prefix
= save_string (prefix
, len
);
2416 pl
->require_machine_suffix
= require_machine_suffix
;
2417 pl
->used_flag_ptr
= warn
;
2424 pl
->next
= (struct prefix_list
*) 0;
2428 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2431 unused_prefix_warnings (pprefix
)
2432 struct path_prefix
*pprefix
;
2434 struct prefix_list
*pl
= pprefix
->plist
;
2438 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2440 if (pl
->require_machine_suffix
&& machine_suffix
)
2441 error ("file path prefix `%s%s' never used", pl
->prefix
,
2444 error ("file path prefix `%s' never used", pl
->prefix
);
2446 /* Prevent duplicate warnings. */
2447 *pl
->used_flag_ptr
= 1;
2455 /* Execute the command specified by the arguments on the current line of spec.
2456 When using pipes, this includes several piped-together commands
2457 with `|' between them.
2459 Return 0 if successful, -1 if failed. */
2465 int n_commands
; /* # of command. */
2469 const char *prog
; /* program name. */
2470 char **argv
; /* vector of args. */
2471 int pid
; /* pid of process for this command. */
2474 struct command
*commands
; /* each command buffer with above info. */
2476 /* Count # of piped commands. */
2477 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2478 if (strcmp (argbuf
[i
], "|") == 0)
2481 /* Get storage for each command. */
2483 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2485 /* Split argbuf into its separate piped processes,
2486 and record info about each one.
2487 Also search for the programs that are to be run. */
2489 commands
[0].prog
= argbuf
[0]; /* first command. */
2490 commands
[0].argv
= &argbuf
[0];
2491 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2494 commands
[0].argv
[0] = string
;
2496 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2497 if (strcmp (argbuf
[i
], "|") == 0)
2498 { /* each command. */
2499 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2500 fatal ("-pipe not supported");
2502 argbuf
[i
] = 0; /* termination of command args. */
2503 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2504 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2505 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2507 commands
[n_commands
].argv
[0] = string
;
2511 argbuf
[argbuf_index
] = 0;
2513 /* If -v, print what we are about to do, and maybe query. */
2517 /* For help listings, put a blank line between sub-processes. */
2518 if (print_help_list
)
2519 fputc ('\n', stderr
);
2521 /* Print each piped command as a separate line. */
2522 for (i
= 0; i
< n_commands
; i
++)
2526 for (j
= commands
[i
].argv
; *j
; j
++)
2527 fprintf (stderr
, " %s", *j
);
2529 /* Print a pipe symbol after all but the last command. */
2530 if (i
+ 1 != n_commands
)
2531 fprintf (stderr
, " |");
2532 fprintf (stderr
, "\n");
2536 notice ("\nGo ahead? (y or n) ");
2540 while (getchar () != '\n')
2543 if (i
!= 'y' && i
!= 'Y')
2548 /* Run each piped subprocess. */
2550 for (i
= 0; i
< n_commands
; i
++)
2552 char *errmsg_fmt
, *errmsg_arg
;
2553 char *string
= commands
[i
].argv
[0];
2555 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2556 programname
, temp_filename
,
2557 &errmsg_fmt
, &errmsg_arg
,
2558 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2559 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2560 | (string
== commands
[i
].prog
2561 ? PEXECUTE_SEARCH
: 0)
2562 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2564 if (commands
[i
].pid
== -1)
2565 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2567 if (string
!= commands
[i
].prog
)
2573 /* Wait for all the subprocesses to finish.
2574 We don't care what order they finish in;
2575 we know that N_COMMANDS waits will get them all.
2576 Ignore subprocesses that we don't know about,
2577 since they can be spawned by the process that exec'ed us. */
2581 #ifdef HAVE_GETRUSAGE
2586 for (i
= 0; i
< n_commands
; )
2592 pid
= pwait (commands
[i
].pid
, &status
, 0);
2596 #ifdef HAVE_GETRUSAGE
2599 /* getrusage returns the total resource usage of all children
2600 up to now. Copy the previous values into prus, get the
2601 current statistics, then take the difference. */
2604 getrusage (RUSAGE_CHILDREN
, &rus
);
2605 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2606 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2607 ut
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2609 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2610 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2611 st
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2615 for (j
= 0; j
< n_commands
; j
++)
2616 if (commands
[j
].pid
== pid
)
2621 if (WIFSIGNALED (status
))
2623 fatal ("Internal compiler error: program %s got fatal signal %d",
2624 commands
[j
].prog
, WTERMSIG (status
));
2628 else if (WIFEXITED (status
)
2629 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2631 if (WEXITSTATUS (status
) > greatest_status
)
2632 greatest_status
= WEXITSTATUS (status
);
2636 #ifdef HAVE_GETRUSAGE
2637 if (report_times
&& ut
+ st
!= 0)
2638 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2647 /* Find all the switches given to us
2648 and make a vector describing them.
2649 The elements of the vector are strings, one per switch given.
2650 If a switch uses following arguments, then the `part1' field
2651 is the switch itself and the `args' field
2652 is a null-terminated vector containing the following arguments.
2653 The `live_cond' field is 1 if the switch is true in a conditional spec,
2654 -1 if false (overridden by a later switch), and is initialized to zero.
2655 The `validated' field is nonzero if any spec has looked at this switch;
2656 if it remains zero at the end of the run, it must be meaningless. */
2666 static struct switchstr
*switches
;
2668 static int n_switches
;
2673 const char *language
;
2676 /* Also a vector of input files specified. */
2678 static struct infile
*infiles
;
2680 static int n_infiles
;
2682 /* This counts the number of libraries added by lang_specific_driver, so that
2683 we can tell if there were any user supplied any files or libraries. */
2685 static int added_libraries
;
2687 /* And a vector of corresponding output files is made up later. */
2689 static const char **outfiles
;
2691 /* Used to track if none of the -B paths are used. */
2694 /* Used to track if standard path isn't used and -b or -V is specified. */
2695 static int warn_std
;
2697 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2698 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 printf ("Options:\n");
2761 printf (" -pass-exit-codes Exit with highest error code from a phase\n");
2762 printf (" --help Display this information\n");
2764 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2765 printf (" -dumpspecs Display all of the built in spec strings\n");
2766 printf (" -dumpversion Display the version of the compiler\n");
2767 printf (" -dumpmachine Display the compiler's target processor\n");
2768 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2769 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2770 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2771 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2772 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2773 printf (" -print-multi-lib Display the mapping between command line options and\n");
2774 printf (" multiple library search directories\n");
2775 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2776 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2777 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2778 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2779 printf (" -save-temps Do not delete intermediate files\n");
2780 printf (" -pipe Use pipes rather than intermediate files\n");
2781 printf (" -time Time the execution of each subprocess\n");
2782 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2783 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2784 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2785 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2786 printf (" -V <version> Run gcc version number <version>, if installed\n");
2787 printf (" -v Display the programs invoked by the compiler\n");
2788 printf (" -E Preprocess only; do not compile, assemble or link\n");
2789 printf (" -S Compile only; do not assemble or link\n");
2790 printf (" -c Compile and assemble, but do not link\n");
2791 printf (" -o <file> Place the output into <file>\n");
2792 printf (" -x <language> Specify the language of the following input files\n");
2793 printf (" Permissable languages include: c c++ assembler none\n");
2794 printf (" 'none' means revert to the default behaviour of\n");
2795 printf (" guessing the language based on the file's extension\n");
2797 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2798 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2800 printf ("on to these processes the -W<letter> options must be used.\n");
2802 /* The rest of the options are displayed by invocations of the various
2807 add_preprocessor_option (option
, len
)
2808 const char * option
;
2811 n_preprocessor_options
++;
2813 if (! preprocessor_options
)
2814 preprocessor_options
2815 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2817 preprocessor_options
2818 = (char **) xrealloc (preprocessor_options
,
2819 n_preprocessor_options
* sizeof (char *));
2821 preprocessor_options
[n_preprocessor_options
- 1] =
2822 save_string (option
, len
);
2826 add_assembler_option (option
, len
)
2827 const char * option
;
2830 n_assembler_options
++;
2832 if (! assembler_options
)
2834 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2837 = (char **) xrealloc (assembler_options
,
2838 n_assembler_options
* sizeof (char *));
2840 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2844 add_linker_option (option
, len
)
2845 const char * option
;
2850 if (! linker_options
)
2852 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2855 = (char **) xrealloc (linker_options
,
2856 n_linker_options
* sizeof (char *));
2858 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2861 /* Create the vector `switches' and its contents.
2862 Store its length in `n_switches'. */
2865 process_command (argc
, argv
)
2872 char *spec_lang
= 0;
2873 int last_language_n_infiles
;
2876 int lang_n_infiles
= 0;
2878 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2882 added_libraries
= 0;
2884 /* Figure compiler version from version string. */
2886 compiler_version
= temp1
= xstrdup (version_string
);
2888 for (; *temp1
; ++temp1
)
2897 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2898 see if we can create it from the pathname specified in argv[0]. */
2901 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2902 if (!gcc_exec_prefix
)
2904 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
2905 standard_exec_prefix
);
2906 if (gcc_exec_prefix
)
2907 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL_PTR
));
2911 if (gcc_exec_prefix
)
2913 int len
= strlen (gcc_exec_prefix
);
2914 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2915 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
2917 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2918 if (IS_DIR_SEPARATOR (*temp
)
2919 && strncmp (temp
+1, "lib", 3) == 0
2920 && IS_DIR_SEPARATOR (temp
[4])
2921 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2922 len
-= sizeof ("/lib/gcc-lib/") - 1;
2925 set_std_prefix (gcc_exec_prefix
, len
);
2926 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2927 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2930 /* COMPILER_PATH and LIBRARY_PATH have values
2931 that are lists of directory names with colons. */
2933 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2936 const char *startp
, *endp
;
2937 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2939 startp
= endp
= temp
;
2942 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2944 strncpy (nstore
, startp
, endp
-startp
);
2946 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2947 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2949 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2950 nstore
[endp
-startp
+1] = 0;
2953 nstore
[endp
-startp
] = 0;
2954 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2955 add_prefix (&include_prefixes
,
2956 concat (nstore
, "include", NULL_PTR
),
2960 endp
= startp
= endp
+ 1;
2967 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2968 if (temp
&& *cross_compile
== '0')
2970 const char *startp
, *endp
;
2971 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2973 startp
= endp
= temp
;
2976 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2978 strncpy (nstore
, startp
, endp
-startp
);
2980 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2981 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2983 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2984 nstore
[endp
-startp
+1] = 0;
2987 nstore
[endp
-startp
] = 0;
2988 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2992 endp
= startp
= endp
+ 1;
2999 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3000 GET_ENV_PATH_LIST (temp
, "LPATH");
3001 if (temp
&& *cross_compile
== '0')
3003 const char *startp
, *endp
;
3004 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3006 startp
= endp
= temp
;
3009 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3011 strncpy (nstore
, startp
, endp
-startp
);
3013 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3014 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3016 nstore
[endp
-startp
] = DIR_SEPARATOR
;
3017 nstore
[endp
-startp
+1] = 0;
3020 nstore
[endp
-startp
] = 0;
3021 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3025 endp
= startp
= endp
+ 1;
3032 /* Convert new-style -- options to old-style. */
3033 translate_options (&argc
, &argv
);
3035 /* Do language-specific adjustment/addition of flags. */
3036 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3038 /* Scan argv twice. Here, the first time, just count how many switches
3039 there will be in their vector, and how many input files in theirs.
3040 Here we also parse the switches that cc itself uses (e.g. -v). */
3042 for (i
= 1; i
< argc
; i
++)
3044 if (! strcmp (argv
[i
], "-dumpspecs"))
3046 struct spec_list
*sl
;
3048 for (sl
= specs
; sl
; sl
= sl
->next
)
3049 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3050 if (link_command_spec
)
3051 printf ("*link_command:\n%s\n\n", link_command_spec
);
3054 else if (! strcmp (argv
[i
], "-dumpversion"))
3056 printf ("%s\n", spec_version
);
3059 else if (! strcmp (argv
[i
], "-dumpmachine"))
3061 printf ("%s\n", spec_machine
);
3064 else if (strcmp (argv
[i
], "-fhelp") == 0)
3066 /* translate_options () has turned --help into -fhelp. */
3067 print_help_list
= 1;
3069 /* We will be passing a dummy file on to the sub-processes. */
3073 add_preprocessor_option ("--help", 6);
3074 add_assembler_option ("--help", 6);
3075 add_linker_option ("--help", 6);
3077 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3079 pass_exit_codes
= 1;
3082 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3083 print_search_dirs
= 1;
3084 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3085 print_file_name
= "libgcc.a";
3086 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3087 print_file_name
= argv
[i
] + 17;
3088 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3089 print_prog_name
= argv
[i
] + 17;
3090 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3091 print_multi_lib
= 1;
3092 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3093 print_multi_directory
= 1;
3094 else if (! strncmp (argv
[i
], "-Wa,", 4))
3097 /* Pass the rest of this option to the assembler. */
3099 /* Split the argument at commas. */
3101 for (j
= 4; argv
[i
][j
]; j
++)
3102 if (argv
[i
][j
] == ',')
3104 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3108 /* Record the part after the last comma. */
3109 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3111 else if (! strncmp (argv
[i
], "-Wp,", 4))
3114 /* Pass the rest of this option to the preprocessor. */
3116 /* Split the argument at commas. */
3118 for (j
= 4; argv
[i
][j
]; j
++)
3119 if (argv
[i
][j
] == ',')
3121 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3125 /* Record the part after the last comma. */
3126 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3128 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3129 /* The +e options to the C++ front-end. */
3131 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3134 /* Split the argument at commas. */
3135 for (j
= 3; argv
[i
][j
]; j
++)
3136 n_infiles
+= (argv
[i
][j
] == ',');
3138 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3141 fatal ("argument to `-Xlinker' is missing");
3146 else if (strncmp (argv
[i
], "-l", 2) == 0)
3148 else if (strcmp (argv
[i
], "-save-temps") == 0)
3150 save_temps_flag
= 1;
3153 else if (strcmp (argv
[i
], "-specs") == 0)
3155 struct user_specs
*user
= (struct user_specs
*)
3156 xmalloc (sizeof (struct user_specs
));
3158 fatal ("argument to `-specs' is missing");
3160 user
->next
= (struct user_specs
*)0;
3161 user
->filename
= argv
[i
];
3162 if (user_specs_tail
)
3163 user_specs_tail
->next
= user
;
3165 user_specs_head
= user
;
3166 user_specs_tail
= user
;
3168 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3170 struct user_specs
*user
= (struct user_specs
*)
3171 xmalloc (sizeof (struct user_specs
));
3172 if (strlen (argv
[i
]) == 7)
3173 fatal ("argument to `-specs=' is missing");
3175 user
->next
= (struct user_specs
*)0;
3176 user
->filename
= argv
[i
]+7;
3177 if (user_specs_tail
)
3178 user_specs_tail
->next
= user
;
3180 user_specs_head
= user
;
3181 user_specs_tail
= user
;
3183 else if (strcmp (argv
[i
], "-time") == 0)
3185 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3187 register char *p
= &argv
[i
][1];
3188 register int c
= *p
;
3194 if (p
[1] == 0 && i
+ 1 == argc
)
3195 fatal ("argument to `-b' is missing");
3197 spec_machine
= argv
[++i
];
3199 spec_machine
= p
+ 1;
3201 warn_std_ptr
= &warn_std
;
3207 if (p
[1] == 0 && i
+ 1 == argc
)
3208 fatal ("argument to `-B' is missing");
3213 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
3214 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
3216 add_prefix (&include_prefixes
, concat (value
, "include",
3218 NULL_PTR
, 1, 0, NULL_PTR
);
3220 /* As a kludge, if the arg is "[foo/]stageN/", just add
3221 "[foo/]include" to the include prefix. */
3223 int len
= strlen (value
);
3226 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3227 && strncmp (value
+ len
- 7, "stage", 5) == 0
3228 && ISDIGIT (value
[len
- 2])
3229 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3232 add_prefix (&include_prefixes
, "include", NULL_PTR
,
3236 char *string
= xmalloc (len
+ 1);
3237 strncpy (string
, value
, len
-7);
3238 strcpy (string
+len
-7, "include");
3239 add_prefix (&include_prefixes
, string
, NULL_PTR
,
3248 case 'v': /* Print our subcommands and print versions. */
3250 /* If they do anything other than exactly `-v', don't set
3251 verbose_flag; rather, continue on to give the error. */
3259 if (p
[1] == 0 && i
+ 1 == argc
)
3260 fatal ("argument to `-V' is missing");
3262 spec_version
= argv
[++i
];
3264 spec_version
= p
+ 1;
3265 compiler_version
= spec_version
;
3266 warn_std_ptr
= &warn_std
;
3268 /* Validate the version number. Use the same checks
3269 done when inserting it into a spec.
3271 The format of the version string is
3272 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3274 const char *v
= compiler_version
;
3276 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3277 while (! ISDIGIT (*v
))
3280 if (v
> compiler_version
&& v
[-1] != '-')
3281 fatal ("invalid version number format");
3283 /* Set V after the first period. */
3284 while (ISDIGIT (*v
))
3288 fatal ("invalid version number format");
3291 while (ISDIGIT (*v
))
3294 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3295 fatal ("invalid version number format");
3311 #if defined(HAVE_EXECUTABLE_SUFFIX)
3316 /* Forward scan, just in case -S or -c is specified
3323 if (argv
[j
][0] == '-')
3325 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3331 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3332 j
+= skip
- (argv
[j
][2] != 0);
3333 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3340 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3342 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3344 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3352 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3353 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3354 else if (WORD_SWITCH_TAKES_ARG (p
))
3355 i
+= WORD_SWITCH_TAKES_ARG (p
);
3365 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3366 fatal ("cannot specify -o with -c or -S and multiple compilations");
3368 /* Set up the search paths before we go looking for config files. */
3370 /* These come before the md prefixes so that we will find gcc's subcommands
3371 (such as cpp) rather than those of the host system. */
3372 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3373 as well as trying the machine and the version. */
3375 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3376 0, 1, warn_std_ptr
);
3377 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3378 0, 2, warn_std_ptr
);
3379 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3380 0, 2, warn_std_ptr
);
3383 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3384 0, 1, warn_std_ptr
);
3385 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3386 0, 1, warn_std_ptr
);
3388 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3389 dir_separator_str
, NULL_PTR
);
3391 /* If tooldir is relative, base it on exec_prefixes. A relative
3392 tooldir lets us move the installed tree as a unit.
3394 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3395 directories, so that we can search both the user specified directory
3396 and the standard place. */
3398 if (!IS_DIR_SEPARATOR (*tooldir_prefix
))
3400 if (gcc_exec_prefix
)
3402 char *gcc_exec_tooldir_prefix
3403 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3404 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3406 add_prefix (&exec_prefixes
,
3407 concat (gcc_exec_tooldir_prefix
, "bin",
3408 dir_separator_str
, NULL_PTR
),
3409 NULL_PTR
, 0, 0, NULL_PTR
);
3410 add_prefix (&startfile_prefixes
,
3411 concat (gcc_exec_tooldir_prefix
, "lib",
3412 dir_separator_str
, NULL_PTR
),
3413 NULL_PTR
, 0, 0, NULL_PTR
);
3416 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3417 dir_separator_str
, spec_version
,
3418 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3421 add_prefix (&exec_prefixes
,
3422 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3423 "BINUTILS", 0, 0, NULL_PTR
);
3424 add_prefix (&startfile_prefixes
,
3425 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3426 "BINUTILS", 0, 0, NULL_PTR
);
3428 /* More prefixes are enabled in main, after we read the specs file
3429 and determine whether this is cross-compilation or not. */
3432 /* Then create the space for the vectors and scan again. */
3434 switches
= ((struct switchstr
*)
3435 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3436 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3439 last_language_n_infiles
= -1;
3441 /* This, time, copy the text of each switch and store a pointer
3442 to the copy in the vector of switches.
3443 Store all the infiles in their vector. */
3445 for (i
= 1; i
< argc
; i
++)
3447 /* Just skip the switches that were handled by the preceding loop. */
3448 if (! strncmp (argv
[i
], "-Wa,", 4))
3450 else if (! strncmp (argv
[i
], "-Wp,", 4))
3452 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3454 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3456 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3458 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3460 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3462 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3464 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3466 else if (strcmp (argv
[i
], "-fhelp") == 0)
3470 /* Create a dummy input file, so that we can pass --help on to
3471 the various sub-processes. */
3472 infiles
[n_infiles
].language
= "c";
3473 infiles
[n_infiles
++].name
= "help-dummy";
3475 /* Preserve the --help switch so that it can be caught by the
3477 switches
[n_switches
].part1
= "--help";
3478 switches
[n_switches
].args
= 0;
3479 switches
[n_switches
].live_cond
= 0;
3480 switches
[n_switches
].validated
= 0;
3485 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3487 /* Compensate for the +e options to the C++ front-end;
3488 they're there simply for cfront call-compatibility. We do
3489 some magic in default_compilers to pass them down properly.
3490 Note we deliberately start at the `+' here, to avoid passing
3491 -e0 or -e1 down into the linker. */
3492 switches
[n_switches
].part1
= &argv
[i
][0];
3493 switches
[n_switches
].args
= 0;
3494 switches
[n_switches
].live_cond
= 0;
3495 switches
[n_switches
].validated
= 0;
3498 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3501 /* Split the argument at commas. */
3503 for (j
= 4; argv
[i
][j
]; j
++)
3504 if (argv
[i
][j
] == ',')
3506 infiles
[n_infiles
].language
= "*";
3507 infiles
[n_infiles
++].name
3508 = save_string (argv
[i
] + prev
, j
- prev
);
3511 /* Record the part after the last comma. */
3512 infiles
[n_infiles
].language
= "*";
3513 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3515 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3517 infiles
[n_infiles
].language
= "*";
3518 infiles
[n_infiles
++].name
= argv
[++i
];
3520 else if (strncmp (argv
[i
], "-l", 2) == 0)
3522 infiles
[n_infiles
].language
= "*";
3523 infiles
[n_infiles
++].name
= argv
[i
];
3525 else if (strcmp (argv
[i
], "-specs") == 0)
3527 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3529 else if (strcmp (argv
[i
], "-time") == 0)
3531 else if ((save_temps_flag
|| report_times
)
3532 && strcmp (argv
[i
], "-pipe") == 0)
3534 /* -save-temps overrides -pipe, so that temp files are produced */
3535 if (save_temps_flag
)
3536 error ("Warning: -pipe ignored since -save-temps specified");
3537 /* -time overrides -pipe because we can't get correct stats when
3538 multiple children are running at once. */
3539 else if (report_times
)
3540 error ("Warning: -pipe ignored since -time specified");
3542 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3544 register char *p
= &argv
[i
][1];
3545 register int c
= *p
;
3549 if (p
[1] == 0 && i
+ 1 == argc
)
3550 fatal ("argument to `-x' is missing");
3552 spec_lang
= argv
[++i
];
3555 if (! strcmp (spec_lang
, "none"))
3556 /* Suppress the warning if -xnone comes after the last input
3557 file, because alternate command interfaces like g++ might
3558 find it useful to place -xnone after each input file. */
3561 last_language_n_infiles
= n_infiles
;
3564 switches
[n_switches
].part1
= p
;
3565 /* Deal with option arguments in separate argv elements. */
3566 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3567 || WORD_SWITCH_TAKES_ARG (p
))
3570 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3574 /* Count only the option arguments in separate argv elements. */
3575 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3577 if (i
+ n_args
>= argc
)
3578 fatal ("argument to `-%s' is missing", p
);
3579 switches
[n_switches
].args
3580 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3582 switches
[n_switches
].args
[j
++] = argv
[++i
];
3583 /* Null-terminate the vector. */
3584 switches
[n_switches
].args
[j
] = 0;
3586 else if (index (switches_need_spaces
, c
))
3588 /* On some systems, ld cannot handle some options without
3589 a space. So split the option from its argument. */
3590 char *part1
= (char *) xmalloc (2);
3594 switches
[n_switches
].part1
= part1
;
3595 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3596 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3597 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3598 switches
[n_switches
].args
[1] = 0;
3601 switches
[n_switches
].args
= 0;
3603 switches
[n_switches
].live_cond
= 0;
3604 switches
[n_switches
].validated
= 0;
3605 /* This is always valid, since gcc.c itself understands it. */
3606 if (!strcmp (p
, "save-temps"))
3607 switches
[n_switches
].validated
= 1;
3610 char ch
= switches
[n_switches
].part1
[0];
3611 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3612 switches
[n_switches
].validated
= 1;
3618 #ifdef HAVE_OBJECT_SUFFIX
3619 argv
[i
] = convert_filename (argv
[i
], 0);
3622 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3624 perror_with_name (argv
[i
]);
3629 infiles
[n_infiles
].language
= spec_lang
;
3630 infiles
[n_infiles
++].name
= argv
[i
];
3635 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3636 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3638 switches
[n_switches
].part1
= 0;
3639 infiles
[n_infiles
].name
= 0;
3642 /* Process a spec string, accumulating and running commands. */
3644 /* These variables describe the input file name.
3645 input_file_number is the index on outfiles of this file,
3646 so that the output file name can be stored for later use by %o.
3647 input_basename is the start of the part of the input file
3648 sans all directory names, and basename_length is the number
3649 of characters starting there excluding the suffix .c or whatever. */
3651 const char *input_filename
;
3652 static int input_file_number
;
3653 size_t input_filename_length
;
3654 static int basename_length
;
3655 static const char *input_basename
;
3656 static const char *input_suffix
;
3658 /* These are variables used within do_spec and do_spec_1. */
3660 /* Nonzero if an arg has been started and not yet terminated
3661 (with space, tab or newline). */
3662 static int arg_going
;
3664 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3665 is a temporary file name. */
3666 static int delete_this_arg
;
3668 /* Nonzero means %w has been seen; the next arg to be terminated
3669 is the output file name of this compilation. */
3670 static int this_is_output_file
;
3672 /* Nonzero means %s has been seen; the next arg to be terminated
3673 is the name of a library file and we should try the standard
3674 search dirs for it. */
3675 static int this_is_library_file
;
3677 /* Nonzero means that the input of this command is coming from a pipe. */
3678 static int input_from_pipe
;
3680 /* Process the spec SPEC and run the commands specified therein.
3681 Returns 0 if the spec is successfully processed; -1 if failed. */
3691 delete_this_arg
= 0;
3692 this_is_output_file
= 0;
3693 this_is_library_file
= 0;
3694 input_from_pipe
= 0;
3696 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3698 /* Force out any unfinished command.
3699 If -pipe, this forces out the last command if it ended in `|'. */
3702 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3705 if (argbuf_index
> 0)
3712 /* Process the sub-spec SPEC as a portion of a larger spec.
3713 This is like processing a whole spec except that we do
3714 not initialize at the beginning and we do not supply a
3715 newline by default at the end.
3716 INSWITCH nonzero means don't process %-sequences in SPEC;
3717 in this case, % is treated as an ordinary character.
3718 This is used while substituting switches.
3719 INSWITCH nonzero also causes SPC not to terminate an argument.
3721 Value is zero unless a line was finished
3722 and the command on that line reported an error. */
3725 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3728 const char *soft_matched_part
;
3730 register const char *p
= spec
;
3737 /* If substituting a switch, treat all chars like letters.
3738 Otherwise, NL, SPC, TAB and % are special. */
3739 switch (inswitch
? 'a' : c
)
3742 /* End of line: finish any pending argument,
3743 then run the pending command if one has been started. */
3746 obstack_1grow (&obstack
, 0);
3747 string
= obstack_finish (&obstack
);
3748 if (this_is_library_file
)
3749 string
= find_file (string
);
3750 store_arg (string
, delete_this_arg
, this_is_output_file
);
3751 if (this_is_output_file
)
3752 outfiles
[input_file_number
] = string
;
3756 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3758 for (i
= 0; i
< n_switches
; i
++)
3759 if (!strcmp (switches
[i
].part1
, "pipe"))
3762 /* A `|' before the newline means use a pipe here,
3763 but only if -pipe was specified.
3764 Otherwise, execute now and don't pass the `|' as an arg. */
3767 input_from_pipe
= 1;
3768 switches
[i
].validated
= 1;
3775 if (argbuf_index
> 0)
3781 /* Reinitialize for a new command, and for a new argument. */
3784 delete_this_arg
= 0;
3785 this_is_output_file
= 0;
3786 this_is_library_file
= 0;
3787 input_from_pipe
= 0;
3791 /* End any pending argument. */
3794 obstack_1grow (&obstack
, 0);
3795 string
= obstack_finish (&obstack
);
3796 if (this_is_library_file
)
3797 string
= find_file (string
);
3798 store_arg (string
, delete_this_arg
, this_is_output_file
);
3799 if (this_is_output_file
)
3800 outfiles
[input_file_number
] = string
;
3804 obstack_1grow (&obstack
, c
);
3810 /* Space or tab ends an argument if one is pending. */
3813 obstack_1grow (&obstack
, 0);
3814 string
= obstack_finish (&obstack
);
3815 if (this_is_library_file
)
3816 string
= find_file (string
);
3817 store_arg (string
, delete_this_arg
, this_is_output_file
);
3818 if (this_is_output_file
)
3819 outfiles
[input_file_number
] = string
;
3821 /* Reinitialize for a new argument. */
3823 delete_this_arg
= 0;
3824 this_is_output_file
= 0;
3825 this_is_library_file
= 0;
3832 fatal ("Invalid specification! Bug in cc.");
3835 obstack_grow (&obstack
, input_basename
, basename_length
);
3840 delete_this_arg
= 2;
3843 /* Dump out the directories specified with LIBRARY_PATH,
3844 followed by the absolute directories
3845 that we search for startfiles. */
3848 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3849 size_t bufsize
= 100;
3850 char *buffer
= (char *) xmalloc (bufsize
);
3853 for (; pl
; pl
= pl
->next
)
3855 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3856 /* Used on systems which record the specified -L dirs
3857 and use them to search for dynamic linking. */
3858 /* Relative directories always come from -B,
3859 and it is better not to use them for searching
3860 at run time. In particular, stage1 loses */
3861 if (!IS_DIR_SEPARATOR (pl
->prefix
[0]))
3864 /* Try subdirectory if there is one. */
3865 if (multilib_dir
!= NULL
)
3869 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3871 bufsize
= (strlen (pl
->prefix
)
3872 + strlen (machine_suffix
)) * 2 + 1;
3873 buffer
= (char *) xrealloc (buffer
, bufsize
);
3874 strcpy (buffer
, pl
->prefix
);
3875 strcat (buffer
, machine_suffix
);
3876 if (is_directory (buffer
, multilib_dir
, 1))
3878 do_spec_1 ("-L", 0, NULL_PTR
);
3879 #ifdef SPACE_AFTER_L_OPTION
3880 do_spec_1 (" ", 0, NULL_PTR
);
3882 do_spec_1 (buffer
, 1, NULL_PTR
);
3883 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3884 /* Make this a separate argument. */
3885 do_spec_1 (" ", 0, NULL_PTR
);
3888 if (!pl
->require_machine_suffix
)
3890 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3892 do_spec_1 ("-L", 0, NULL_PTR
);
3893 #ifdef SPACE_AFTER_L_OPTION
3894 do_spec_1 (" ", 0, NULL_PTR
);
3896 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3897 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3898 /* Make this a separate argument. */
3899 do_spec_1 (" ", 0, NULL_PTR
);
3905 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3907 do_spec_1 ("-L", 0, NULL_PTR
);
3908 #ifdef SPACE_AFTER_L_OPTION
3909 do_spec_1 (" ", 0, NULL_PTR
);
3911 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3912 /* Remove slash from machine_suffix. */
3913 if (strlen (machine_suffix
) >= bufsize
)
3914 bufsize
= strlen (machine_suffix
) * 2 + 1;
3915 buffer
= (char *) xrealloc (buffer
, bufsize
);
3916 strcpy (buffer
, machine_suffix
);
3917 idx
= strlen (buffer
);
3918 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3919 buffer
[idx
- 1] = 0;
3920 do_spec_1 (buffer
, 1, NULL_PTR
);
3921 /* Make this a separate argument. */
3922 do_spec_1 (" ", 0, NULL_PTR
);
3925 if (!pl
->require_machine_suffix
)
3927 if (is_directory (pl
->prefix
, "", 1))
3929 do_spec_1 ("-L", 0, NULL_PTR
);
3930 #ifdef SPACE_AFTER_L_OPTION
3931 do_spec_1 (" ", 0, NULL_PTR
);
3933 /* Remove slash from pl->prefix. */
3934 if (strlen (pl
->prefix
) >= bufsize
)
3935 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3936 buffer
= (char *) xrealloc (buffer
, bufsize
);
3937 strcpy (buffer
, pl
->prefix
);
3938 idx
= strlen (buffer
);
3939 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3940 buffer
[idx
- 1] = 0;
3941 do_spec_1 (buffer
, 1, NULL_PTR
);
3942 /* Make this a separate argument. */
3943 do_spec_1 (" ", 0, NULL_PTR
);
3952 /* %efoo means report an error with `foo' as error message
3953 and don't execute any more commands for this file. */
3957 while (*p
!= 0 && *p
!= '\n') p
++;
3958 buf
= (char *) alloca (p
- q
+ 1);
3959 strncpy (buf
, q
, p
- q
);
3969 if (save_temps_flag
)
3971 obstack_grow (&obstack
, input_basename
, basename_length
);
3972 delete_this_arg
= 0;
3976 #ifdef MKTEMP_EACH_FILE
3977 /* ??? This has a problem: the total number of
3978 values mktemp can return is limited.
3979 That matters for the names of object files.
3980 In 2.4, do something about that. */
3981 struct temp_name
*t
;
3983 const char *suffix
= p
;
3984 char *saved_suffix
= NULL
;
3986 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
3988 suffix_length
= p
- suffix
;
3989 if (p
[0] == '%' && p
[1] == 'O')
3992 /* We don't support extra suffix characters after %O. */
3993 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
3995 if (suffix_length
== 0)
3996 suffix
= OBJECT_SUFFIX
;
4000 = (char *) xmalloc (suffix_length
4001 + strlen (OBJECT_SUFFIX
));
4002 strncpy (saved_suffix
, suffix
, suffix_length
);
4003 strcpy (saved_suffix
+ suffix_length
,
4006 suffix_length
+= strlen (OBJECT_SUFFIX
);
4009 /* See if we already have an association of %g/%u/%U and
4011 for (t
= temp_names
; t
; t
= t
->next
)
4012 if (t
->length
== suffix_length
4013 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4014 && t
->unique
== (c
!= 'g'))
4017 /* Make a new association if needed. %u requires one. */
4018 if (t
== 0 || c
== 'u')
4022 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4023 t
->next
= temp_names
;
4026 t
->length
= suffix_length
;
4027 t
->suffix
= save_string (suffix
, suffix_length
);
4028 t
->unique
= (c
!= 'g');
4029 temp_filename
= make_temp_file (t
->suffix
);
4030 temp_filename_length
= strlen (temp_filename
);
4031 t
->filename
= temp_filename
;
4032 t
->filename_length
= temp_filename_length
;
4036 free (saved_suffix
);
4038 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4039 delete_this_arg
= 1;
4041 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
4042 if (c
== 'u' || c
== 'U')
4048 sprintf (buff
, "%d", unique
);
4049 obstack_grow (&obstack
, buff
, strlen (buff
));
4052 delete_this_arg
= 1;
4058 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4064 struct prefix_list
*pl
= include_prefixes
.plist
;
4066 if (gcc_exec_prefix
)
4068 do_spec_1 ("-iprefix", 1, NULL_PTR
);
4069 /* Make this a separate argument. */
4070 do_spec_1 (" ", 0, NULL_PTR
);
4071 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
4072 do_spec_1 (" ", 0, NULL_PTR
);
4075 for (; pl
; pl
= pl
->next
)
4077 do_spec_1 ("-isystem", 1, NULL_PTR
);
4078 /* Make this a separate argument. */
4079 do_spec_1 (" ", 0, NULL_PTR
);
4080 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4081 do_spec_1 (" ", 0, NULL_PTR
);
4088 int max
= n_infiles
;
4089 max
+= lang_specific_extra_outfiles
;
4091 for (i
= 0; i
< max
; i
++)
4093 store_arg (outfiles
[i
], 0, 0);
4098 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
4103 this_is_library_file
= 1;
4107 this_is_output_file
= 1;
4112 int cur_index
= argbuf_index
;
4113 /* Handle the {...} following the %W. */
4116 p
= handle_braces (p
+ 1);
4119 /* If any args were output, mark the last one for deletion
4121 if (argbuf_index
!= cur_index
)
4122 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4126 /* %x{OPTION} records OPTION for %X to output. */
4132 /* Skip past the option value and make a copy. */
4137 string
= save_string (p1
+ 1, p
- p1
- 2);
4139 /* See if we already recorded this option. */
4140 for (i
= 0; i
< n_linker_options
; i
++)
4141 if (! strcmp (string
, linker_options
[i
]))
4147 /* This option is new; add it. */
4148 add_linker_option (string
, strlen (string
));
4152 /* Dump out the options accumulated previously using %x. */
4154 for (i
= 0; i
< n_linker_options
; i
++)
4156 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
4157 /* Make each accumulated option a separate argument. */
4158 do_spec_1 (" ", 0, NULL_PTR
);
4162 /* Dump out the options accumulated previously using -Wa,. */
4164 for (i
= 0; i
< n_assembler_options
; i
++)
4166 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
4167 /* Make each accumulated option a separate argument. */
4168 do_spec_1 (" ", 0, NULL_PTR
);
4172 /* Dump out the options accumulated previously using -Wp,. */
4174 for (i
= 0; i
< n_preprocessor_options
; i
++)
4176 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
4177 /* Make each accumulated option a separate argument. */
4178 do_spec_1 (" ", 0, NULL_PTR
);
4182 /* Here are digits and numbers that just process
4183 a certain constant string as a spec. */
4186 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
4192 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
4198 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
4204 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
4210 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
4216 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
4222 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
4228 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
4234 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
4240 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
4247 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4251 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4255 if (! strncmp (y
, "-D", 2))
4256 /* Copy the whole option. */
4257 while (*y
&& *y
!= ' ' && *y
!= '\t')
4259 else if (*y
== ' ' || *y
== '\t')
4260 /* Copy whitespace to the result. */
4262 /* Don't copy other options. */
4269 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4277 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4281 /* Copy all of CPP_PREDEFINES into BUF,
4282 but put __ after every -D and at the end of each arg. */
4286 if (! strncmp (y
, "-D", 2))
4295 && ! ISUPPER ((unsigned char)*(y
+1))))
4297 /* Stick __ at front of macro name. */
4300 /* Arrange to stick __ at the end as well. */
4304 /* Copy the macro name. */
4305 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4314 /* Copy the value given, if any. */
4315 while (*y
&& *y
!= ' ' && *y
!= '\t')
4318 else if (*y
== ' ' || *y
== '\t')
4319 /* Copy whitespace to the result. */
4321 /* Don't copy -A options */
4327 /* Copy all of CPP_PREDEFINES into BUF,
4328 but put __ after every -D. */
4332 if (! strncmp (y
, "-D", 2))
4338 && ! ISUPPER ((unsigned char)*(y
+1))))
4340 /* Stick -D__ at front of macro name. */
4346 /* Copy the macro name. */
4347 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4350 /* Copy the value given, if any. */
4351 while (*y
&& *y
!= ' ' && *y
!= '\t')
4356 /* Do not copy this macro - we have just done it before */
4357 while (*y
&& *y
!= ' ' && *y
!= '\t')
4361 else if (*y
== ' ' || *y
== '\t')
4362 /* Copy whitespace to the result. */
4364 /* Don't copy -A options */
4370 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4374 if (! strncmp (y
, "-A", 2))
4375 /* Copy the whole option. */
4376 while (*y
&& *y
!= ' ' && *y
!= '\t')
4378 else if (*y
== ' ' || *y
== '\t')
4379 /* Copy whitespace to the result. */
4381 /* Don't copy other options. */
4388 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4395 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4400 /* Here we define characters other than letters and digits. */
4403 p
= handle_braces (p
);
4409 obstack_1grow (&obstack
, '%');
4413 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4414 do_spec_1 (" ", 0, NULL_PTR
);
4417 /* Process a string found as the value of a spec given by name.
4418 This feature allows individual machine descriptions
4419 to add and use their own specs.
4420 %[...] modifies -D options the way %P does;
4421 %(...) uses the spec unmodified. */
4423 error ("Warning: use of obsolete %%[ operator in specs");
4426 const char *name
= p
;
4427 struct spec_list
*sl
;
4430 /* The string after the S/P is the name of a spec that is to be
4432 while (*p
&& *p
!= ')' && *p
!= ']')
4435 /* See if it's in the list */
4436 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4437 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4439 name
= *(sl
->ptr_spec
);
4441 notice ("Processing spec %c%s%c, which is '%s'\n",
4442 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4451 value
= do_spec_1 (name
, 0, NULL_PTR
);
4457 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4459 const char *y
= name
;
4462 /* Copy all of NAME into BUF, but put __ after
4463 every -D and at the end of each arg, */
4466 if (! strncmp (y
, "-D", 2))
4476 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4477 || *y
== '}' || *y
== 0))
4490 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4496 /* Discard the closing paren or bracket. */
4504 int c1
= *p
++; /* Select first or second version number. */
4505 char *v
= compiler_version
;
4508 /* The format of the version string is
4509 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4511 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4512 while (! ISDIGIT (*v
))
4514 if (v
> compiler_version
&& v
[-1] != '-')
4517 /* If desired, advance to second version number. */
4520 /* Set V after the first period. */
4521 while (ISDIGIT (*v
))
4528 /* Set Q at the next period or at the end. */
4530 while (ISDIGIT (*q
))
4532 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
4535 /* Put that part into the command. */
4536 obstack_grow (&obstack
, v
, q
- v
);
4542 if (input_from_pipe
)
4543 do_spec_1 ("-", 0, NULL_PTR
);
4552 /* Backslash: treat next character as ordinary. */
4557 /* Ordinary character: put it into the current argument. */
4558 obstack_1grow (&obstack
, c
);
4562 return 0; /* End of string */
4565 /* Return 0 if we call do_spec_1 and that returns -1. */
4569 register const char *p
;
4571 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4575 int include_blanks
= 1;
4578 /* A '^' after the open-brace means to not give blanks before args. */
4579 include_blanks
= 0, ++p
;
4582 /* A `|' after the open-brace means,
4583 if the test fails, output a single minus sign rather than nothing.
4584 This is used in %{|!pipe:...}. */
4588 negate
= suffix
= 0;
4591 /* A `!' after the open-brace negates the condition:
4592 succeed if the specified switch is not present. */
4596 /* A `.' after the open-brace means test against the current suffix. */
4606 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4608 if (*p
== '|' && pipe_p
)
4615 register int count
= 1;
4616 register const char *q
= p
;
4618 while (*q
++ != ':') continue;
4634 body
= p
, endbody
= p
+1;
4639 int found
= (input_suffix
!= 0
4640 && (long) strlen (input_suffix
) == (long)(p
- filter
)
4641 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4647 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4650 else if (p
[-1] == '*' && p
[0] == '}')
4652 /* Substitute all matching switches as separate args. */
4655 for (i
= 0; i
< n_switches
; i
++)
4656 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4657 && check_live_switch (i
, p
- filter
))
4658 give_switch (i
, 0, include_blanks
);
4662 /* Test for presence of the specified switch. */
4666 /* If name specified ends in *, as in {x*:...},
4667 check for %* and handle that case. */
4668 if (p
[-1] == '*' && !negate
)
4671 const char *r
= body
;
4673 /* First see whether we have %*. */
4677 if (*r
== '%' && r
[1] == '*')
4681 /* If we do, handle that case. */
4684 /* Substitute all matching switches as separate args.
4685 But do this by substituting for %*
4686 in the text that follows the colon. */
4688 unsigned hard_match_len
= p
- filter
- 1;
4689 char *string
= save_string (body
, endbody
- body
- 1);
4691 for (i
= 0; i
< n_switches
; i
++)
4692 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4693 && check_live_switch (i
, -1))
4695 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4696 /* Pass any arguments this switch has. */
4697 give_switch (i
, 1, 1);
4700 /* We didn't match. Try again. */
4707 /* If name specified ends in *, as in {x*:...},
4708 check for presence of any switch name starting with x. */
4711 for (i
= 0; i
< n_switches
; i
++)
4713 unsigned hard_match_len
= p
- filter
- 1;
4715 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4716 && check_live_switch (i
, hard_match_len
))
4722 /* Otherwise, check for presence of exact name specified. */
4725 for (i
= 0; i
< n_switches
; i
++)
4727 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4728 && switches
[i
].part1
[p
- filter
] == 0
4729 && check_live_switch (i
, -1))
4737 /* If it is as desired (present for %{s...}, absent for %{!s...})
4738 then substitute either the switch or the specified
4739 conditional text. */
4740 if (present
!= negate
)
4744 give_switch (i
, 0, include_blanks
);
4748 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4755 /* Here if a %{|...} conditional fails: output a minus sign,
4756 which means "standard output" or "standard input". */
4757 do_spec_1 ("-", 0, NULL_PTR
);
4762 /* We didn't match; try again. */
4769 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4770 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4771 spec, or -1 if either exact match or %* is used.
4773 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4774 whose value does not begin with "no-" is obsoleted by the same value
4775 with the "no-", similarly for a switch with the "no-" prefix. */
4778 check_live_switch (switchnum
, prefix_length
)
4782 const char *name
= switches
[switchnum
].part1
;
4785 /* In the common case of {<at-most-one-letter>*}, a negating
4786 switch would always match, so ignore that case. We will just
4787 send the conflicting switches to the compiler phase. */
4788 if (prefix_length
>= 0 && prefix_length
<= 1)
4791 /* If we already processed this switch and determined if it was
4792 live or not, return our past determination. */
4793 if (switches
[switchnum
].live_cond
!= 0)
4794 return switches
[switchnum
].live_cond
> 0;
4796 /* Now search for duplicate in a manner that depends on the name. */
4800 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4801 if (switches
[i
].part1
[0] == 'O')
4803 switches
[switchnum
].validated
= 1;
4804 switches
[switchnum
].live_cond
= -1;
4809 case 'W': case 'f': case 'm':
4810 if (! strncmp (name
+ 1, "no-", 3))
4812 /* We have Xno-YYY, search for XYYY. */
4813 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4814 if (switches
[i
].part1
[0] == name
[0]
4815 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4817 switches
[switchnum
].validated
= 1;
4818 switches
[switchnum
].live_cond
= -1;
4824 /* We have XYYY, search for Xno-YYY. */
4825 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4826 if (switches
[i
].part1
[0] == name
[0]
4827 && switches
[i
].part1
[1] == 'n'
4828 && switches
[i
].part1
[2] == 'o'
4829 && switches
[i
].part1
[3] == '-'
4830 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4832 switches
[switchnum
].validated
= 1;
4833 switches
[switchnum
].live_cond
= -1;
4840 /* Otherwise the switch is live. */
4841 switches
[switchnum
].live_cond
= 1;
4845 /* Pass a switch to the current accumulating command
4846 in the same form that we received it.
4847 SWITCHNUM identifies the switch; it is an index into
4848 the vector of switches gcc received, which is `switches'.
4849 This cannot fail since it never finishes a command line.
4851 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4853 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4857 give_switch (switchnum
, omit_first_word
, include_blanks
)
4859 int omit_first_word
;
4862 if (!omit_first_word
)
4864 do_spec_1 ("-", 0, NULL_PTR
);
4865 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4868 if (switches
[switchnum
].args
!= 0)
4871 for (p
= switches
[switchnum
].args
; *p
; p
++)
4874 do_spec_1 (" ", 0, NULL_PTR
);
4875 do_spec_1 (*p
, 1, NULL_PTR
);
4879 do_spec_1 (" ", 0, NULL_PTR
);
4880 switches
[switchnum
].validated
= 1;
4883 /* Search for a file named NAME trying various prefixes including the
4884 user's -B prefix and some standard ones.
4885 Return the absolute file name found. If nothing is found, return NAME. */
4893 /* Try multilib_dir if it is defined. */
4894 if (multilib_dir
!= NULL
)
4898 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4899 strcpy (try, multilib_dir
);
4900 strcat (try, dir_separator_str
);
4903 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4905 /* If we don't find it in the multi library dir, then fall
4906 through and look for it in the normal places. */
4907 if (newname
!= NULL
)
4911 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4912 return newname
? newname
: name
;
4915 /* Determine whether a directory exists. If LINKER, return 0 for
4916 certain fixed names not needed by the linker. If not LINKER, it is
4917 only important to return 0 if the host machine has a small ARG_MAX
4921 is_directory (path1
, path2
, linker
)
4926 int len1
= strlen (path1
);
4927 int len2
= strlen (path2
);
4928 char *path
= (char *) alloca (3 + len1
+ len2
);
4932 #ifndef SMALL_ARG_MAX
4937 /* Construct the path from the two parts. Ensure the string ends with "/.".
4938 The resulting path will be a directory even if the given path is a
4940 memcpy (path
, path1
, len1
);
4941 memcpy (path
+ len1
, path2
, len2
);
4942 cp
= path
+ len1
+ len2
;
4943 if (!IS_DIR_SEPARATOR (cp
[-1]))
4944 *cp
++ = DIR_SEPARATOR
;
4948 /* Exclude directories that the linker is known to search. */
4951 && strcmp (path
, concat (dir_separator_str
, "lib",
4952 dir_separator_str
, ".", NULL_PTR
)) == 0)
4954 && strcmp (path
, concat (dir_separator_str
, "usr",
4955 dir_separator_str
, "lib",
4956 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4959 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4962 /* On fatal signals, delete all the temporary files. */
4965 fatal_error (signum
)
4968 signal (signum
, SIG_DFL
);
4969 delete_failure_queue ();
4970 delete_temp_files ();
4971 /* Get the same signal again, this time not handled,
4972 so its normal effect occurs. */
4973 kill (getpid (), signum
);
4976 extern int main
PROTO ((int, char **));
4986 int linker_was_run
= 0;
4987 char *explicit_link_files
;
4990 struct user_specs
*uptr
;
4992 p
= argv
[0] + strlen (argv
[0]);
4993 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
4997 #ifdef HAVE_LC_MESSAGES
4998 setlocale (LC_MESSAGES
, "");
5000 (void) bindtextdomain (PACKAGE
, localedir
);
5001 (void) textdomain (PACKAGE
);
5003 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5004 signal (SIGINT
, fatal_error
);
5006 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5007 signal (SIGHUP
, fatal_error
);
5009 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5010 signal (SIGTERM
, fatal_error
);
5012 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5013 signal (SIGPIPE
, fatal_error
);
5017 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
5019 obstack_init (&obstack
);
5021 /* Build multilib_select, et. al from the separate lines that make up each
5022 multilib selection. */
5024 char **q
= multilib_raw
;
5027 obstack_init (&multilib_obstack
);
5028 while ((p
= *q
++) != (char *) 0)
5029 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5031 obstack_1grow (&multilib_obstack
, 0);
5032 multilib_select
= obstack_finish (&multilib_obstack
);
5034 q
= multilib_matches_raw
;
5035 while ((p
= *q
++) != (char *) 0)
5036 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5038 obstack_1grow (&multilib_obstack
, 0);
5039 multilib_matches
= obstack_finish (&multilib_obstack
);
5043 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
5047 obstack_1grow (&multilib_obstack
, ' ');
5048 obstack_grow (&multilib_obstack
,
5049 multilib_defaults_raw
[i
],
5050 strlen (multilib_defaults_raw
[i
]));
5054 obstack_1grow (&multilib_obstack
, 0);
5055 multilib_defaults
= obstack_finish (&multilib_obstack
);
5058 /* Set up to remember the pathname of gcc and any options
5059 needed for collect. We use argv[0] instead of programname because
5060 we need the complete pathname. */
5061 obstack_init (&collect_obstack
);
5062 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5063 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
5064 putenv (obstack_finish (&collect_obstack
));
5066 #ifdef INIT_ENVIRONMENT
5067 /* Set up any other necessary machine specific environment variables. */
5068 putenv (INIT_ENVIRONMENT
);
5071 /* Choose directory for temp files. */
5073 #ifndef MKTEMP_EACH_FILE
5074 temp_filename
= choose_temp_base ();
5075 temp_filename_length
= strlen (temp_filename
);
5078 /* Make a table of what switches there are (switches, n_switches).
5079 Make a table of specified input files (infiles, n_infiles).
5080 Decode switches that are handled locally. */
5082 process_command (argc
, argv
);
5087 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5089 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5090 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5093 for (i
= 0; (int)i
< n_switches
; i
++)
5098 obstack_grow (&collect_obstack
, " ", 1);
5101 obstack_grow (&collect_obstack
, "'-", 2);
5102 q
= switches
[i
].part1
;
5103 while ((p
= index (q
,'\'')))
5105 obstack_grow (&collect_obstack
, q
, p
-q
);
5106 obstack_grow (&collect_obstack
, "'\\''", 4);
5109 obstack_grow (&collect_obstack
, q
, strlen (q
));
5110 obstack_grow (&collect_obstack
, "'", 1);
5112 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5114 obstack_grow (&collect_obstack
, " '", 2);
5116 while ((p
= index (q
,'\'')))
5118 obstack_grow (&collect_obstack
, q
, p
-q
);
5119 obstack_grow (&collect_obstack
, "'\\''", 4);
5122 obstack_grow (&collect_obstack
, q
, strlen (q
));
5123 obstack_grow (&collect_obstack
, "'", 1);
5126 obstack_grow (&collect_obstack
, "\0", 1);
5127 putenv (obstack_finish (&collect_obstack
));
5130 /* Initialize the vector of specs to just the default.
5131 This means one element containing 0s, as a terminator. */
5133 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5134 bcopy ((char *) default_compilers
, (char *) compilers
,
5135 sizeof default_compilers
);
5136 n_compilers
= n_default_compilers
;
5138 /* Read specs from a file if there is one. */
5140 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5141 spec_version
, dir_separator_str
, NULL_PTR
);
5142 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
5144 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5145 /* Read the specs file unless it is a default one. */
5146 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5147 read_specs (specs_file
, TRUE
);
5151 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5152 for any override of as, ld and libraries. */
5153 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5154 + strlen (just_machine_suffix
)
5155 + sizeof ("specs"));
5157 strcpy (specs_file
, standard_exec_prefix
);
5158 strcat (specs_file
, just_machine_suffix
);
5159 strcat (specs_file
, "specs");
5160 if (access (specs_file
, R_OK
) == 0)
5161 read_specs (specs_file
, TRUE
);
5163 /* If not cross-compiling, look for startfiles in the standard places. */
5164 if (*cross_compile
== '0')
5166 #ifdef MD_EXEC_PREFIX
5167 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
5168 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
5171 #ifdef MD_STARTFILE_PREFIX
5172 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5176 #ifdef MD_STARTFILE_PREFIX_1
5177 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5181 /* If standard_startfile_prefix is relative, base it on
5182 standard_exec_prefix. This lets us move the installed tree
5183 as a unit. If GCC_EXEC_PREFIX is defined, base
5184 standard_startfile_prefix on that as well. */
5185 if (IS_DIR_SEPARATOR (*standard_startfile_prefix
)
5186 || *standard_startfile_prefix
== '$'
5187 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5188 /* Check for disk name on MS-DOS-based systems. */
5189 || (standard_startfile_prefix
[1] == ':'
5190 && (IS_DIR_SEPARATOR (standard_startfile_prefix
[2])))
5193 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5197 if (gcc_exec_prefix
)
5198 add_prefix (&startfile_prefixes
,
5199 concat (gcc_exec_prefix
, machine_suffix
,
5200 standard_startfile_prefix
, NULL_PTR
),
5201 NULL_PTR
, 0, 0, NULL_PTR
);
5202 add_prefix (&startfile_prefixes
,
5203 concat (standard_exec_prefix
,
5205 standard_startfile_prefix
, NULL_PTR
),
5206 NULL_PTR
, 0, 0, NULL_PTR
);
5209 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5210 "BINUTILS", 0, 0, NULL_PTR
);
5211 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5212 "BINUTILS", 0, 0, NULL_PTR
);
5213 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5214 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
5219 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix
) && gcc_exec_prefix
)
5220 add_prefix (&startfile_prefixes
,
5221 concat (gcc_exec_prefix
, machine_suffix
,
5222 standard_startfile_prefix
, NULL_PTR
),
5223 "BINUTILS", 0, 0, NULL_PTR
);
5226 /* Process any user specified specs in the order given on the command
5228 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5230 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5231 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5234 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5235 if (gcc_exec_prefix
)
5237 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5238 + strlen (spec_version
)
5239 + strlen (spec_machine
) + 3);
5240 strcpy (temp
, gcc_exec_prefix
);
5241 strcat (temp
, spec_machine
);
5242 strcat (temp
, dir_separator_str
);
5243 strcat (temp
, spec_version
);
5244 strcat (temp
, dir_separator_str
);
5245 gcc_exec_prefix
= temp
;
5248 /* Now we have the specs.
5249 Set the `valid' bits for switches that match anything in any spec. */
5251 validate_all_switches ();
5253 /* Now that we have the switches and the specs, set
5254 the subdirectory based on the options. */
5255 set_multilib_dir ();
5257 /* Warn about any switches that no pass was interested in. */
5259 for (i
= 0; (int)i
< n_switches
; i
++)
5260 if (! switches
[i
].validated
)
5261 error ("unrecognized option `-%s'", switches
[i
].part1
);
5263 /* Obey some of the options. */
5265 if (print_search_dirs
)
5267 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
5268 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
5269 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
5273 if (print_file_name
)
5275 printf ("%s\n", find_file (print_file_name
));
5279 if (print_prog_name
)
5281 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5282 printf ("%s\n", (newname
? newname
: print_prog_name
));
5286 if (print_multi_lib
)
5288 print_multilib_info ();
5292 if (print_multi_directory
)
5294 if (multilib_dir
== NULL
)
5297 printf ("%s\n", multilib_dir
);
5301 if (print_help_list
)
5307 printf ("\nFor bug reporting instructions, please see:\n");
5308 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>.\n");
5313 /* We do not exit here. Instead we have created a fake input file
5314 called 'help-dummy' which needs to be compiled, and we pass this
5315 on the the various sub-processes, along with the --help switch. */
5322 /* compiler_version is truncated at the first space when initialized
5323 from version string, so truncate version_string at the first space
5324 before comparing. */
5325 for (n
= 0; version_string
[n
]; n
++)
5326 if (version_string
[n
] == ' ')
5329 if (! strncmp (version_string
, compiler_version
, n
)
5330 && compiler_version
[n
] == 0)
5331 notice ("gcc version %s\n", version_string
);
5333 notice ("gcc driver version %s executing gcc version %s\n",
5334 version_string
, compiler_version
);
5340 if (n_infiles
== added_libraries
)
5341 fatal ("No input files");
5343 /* Make a place to record the compiler output file names
5344 that correspond to the input files. */
5347 i
+= lang_specific_extra_outfiles
;
5348 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5350 /* Record which files were specified explicitly as link input. */
5352 explicit_link_files
= xcalloc (1, n_infiles
);
5354 for (i
= 0; (int)i
< n_infiles
; i
++)
5356 register struct compiler
*cp
= 0;
5357 int this_file_error
= 0;
5359 /* Tell do_spec what to substitute for %i. */
5361 input_filename
= infiles
[i
].name
;
5362 input_filename_length
= strlen (input_filename
);
5363 input_file_number
= i
;
5365 /* Use the same thing in %o, unless cp->spec says otherwise. */
5367 outfiles
[i
] = input_filename
;
5369 /* Figure out which compiler from the file's suffix. */
5371 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5372 infiles
[i
].language
);
5376 /* Ok, we found an applicable compiler. Run its spec. */
5377 /* First say how much of input_filename to substitute for %b */
5378 register const char *p
;
5381 if (cp
->spec
[0][0] == '#')
5382 error ("%s: %s compiler not installed on this system",
5383 input_filename
, &cp
->spec
[0][1]);
5385 input_basename
= input_filename
;
5386 for (p
= input_filename
; *p
; p
++)
5387 if (IS_DIR_SEPARATOR (*p
))
5388 input_basename
= p
+ 1;
5390 /* Find a suffix starting with the last period,
5391 and set basename_length to exclude that suffix. */
5392 basename_length
= strlen (input_basename
);
5393 p
= input_basename
+ basename_length
;
5394 while (p
!= input_basename
&& *p
!= '.') --p
;
5395 if (*p
== '.' && p
!= input_basename
)
5397 basename_length
= p
- input_basename
;
5398 input_suffix
= p
+ 1;
5404 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5406 len
+= strlen (cp
->spec
[j
]);
5409 char *p1
= (char *) xmalloc (len
+ 1);
5412 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5415 strcpy (p1
+ len
, cp
->spec
[j
]);
5416 len
+= strlen (cp
->spec
[j
]);
5419 value
= do_spec (p1
);
5423 this_file_error
= 1;
5426 /* If this file's name does not contain a recognized suffix,
5427 record it as explicit linker input. */
5430 explicit_link_files
[i
] = 1;
5432 /* Clear the delete-on-failure queue, deleting the files in it
5433 if this compilation failed. */
5435 if (this_file_error
)
5437 delete_failure_queue ();
5440 /* If this compilation succeeded, don't delete those files later. */
5441 clear_failure_queue ();
5444 if (error_count
== 0)
5446 /* Make sure INPUT_FILE_NUMBER points to first available open
5448 input_file_number
= n_infiles
;
5449 if (lang_specific_pre_link ())
5453 /* Run ld to link all the compiler output files. */
5455 if (error_count
== 0)
5457 int tmp
= execution_count
;
5459 /* We'll use ld if we can't find collect2. */
5460 if (! strcmp (linker_name_spec
, "collect2"))
5462 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5464 linker_name_spec
= "ld";
5466 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5468 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5469 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5471 value
= do_spec (link_command_spec
);
5474 linker_was_run
= (tmp
!= execution_count
);
5477 /* Warn if a -B option was specified but the prefix was never used. */
5478 unused_prefix_warnings (&exec_prefixes
);
5479 unused_prefix_warnings (&startfile_prefixes
);
5481 /* If options said don't run linker,
5482 complain about input files to be given to the linker. */
5484 if (! linker_was_run
&& error_count
== 0)
5485 for (i
= 0; (int)i
< n_infiles
; i
++)
5486 if (explicit_link_files
[i
])
5487 error ("%s: linker input file unused since linking not done",
5490 /* Delete some or all of the temporary files we made. */
5493 delete_failure_queue ();
5494 delete_temp_files ();
5496 if (print_help_list
)
5498 printf ("\nFor bug reporting instructions, please see:\n");
5499 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>\n");
5502 return (signal_count
!= 0 ? 2
5503 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5507 /* Find the proper compilation spec for the file name NAME,
5508 whose length is LENGTH. LANGUAGE is the specified language,
5509 or 0 if this file is to be passed to the linker. */
5511 static struct compiler
*
5512 lookup_compiler (name
, length
, language
)
5515 const char *language
;
5517 struct compiler
*cp
;
5519 /* If this was specified by the user to be a linker input, indicate that. */
5520 if (language
!= 0 && language
[0] == '*')
5523 /* Otherwise, look for the language, if one is spec'd. */
5526 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5527 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5530 error ("language %s not recognized", language
);
5534 /* Look for a suffix. */
5535 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5537 if (/* The suffix `-' matches only the file name `-'. */
5538 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5539 || (strlen (cp
->suffix
) < length
5540 /* See if the suffix matches the end of NAME. */
5542 && ((!strcmp (cp
->suffix
,
5543 name
+ length
- strlen (cp
->suffix
))
5544 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5545 && !strcasecmp (cp
->suffix
,
5546 name
+ length
- strlen (cp
->suffix
)))
5548 && !strcmp (cp
->suffix
,
5549 name
+ length
- strlen (cp
->suffix
))
5553 if (cp
->spec
[0][0] == '@')
5555 struct compiler
*new;
5557 /* An alias entry maps a suffix to a language.
5558 Search for the language; pass 0 for NAME and LENGTH
5559 to avoid infinite recursion if language not found.
5560 Construct the new compiler spec. */
5561 language
= cp
->spec
[0] + 1;
5562 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5563 new->suffix
= cp
->suffix
;
5565 lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5570 /* A non-alias entry: return it. */
5579 save_string (s
, len
)
5583 register char *result
= xmalloc (len
+ 1);
5585 bcopy (s
, result
, len
);
5591 pfatal_with_name (name
)
5594 perror_with_name (name
);
5595 delete_temp_files ();
5600 perror_with_name (name
)
5603 error ("%s: %s", name
, xstrerror (errno
));
5607 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5608 const char *errmsg_fmt
;
5609 const char *errmsg_arg
;
5613 int save_errno
= errno
;
5615 /* Space for trailing '\0' is in %s. */
5616 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5617 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5623 pfatal_with_name (errmsg_fmt
);
5626 /* Output an error message and exit */
5631 fatal ("Internal gcc abort.");
5634 /* Output an error message and exit */
5637 fatal
VPROTO((const char *msgid
, ...))
5639 #ifndef ANSI_PROTOTYPES
5644 VA_START (ap
, msgid
);
5646 #ifndef ANSI_PROTOTYPES
5647 msgid
= va_arg (ap
, const char *);
5650 fprintf (stderr
, "%s: ", programname
);
5651 vfprintf (stderr
, _(msgid
), ap
);
5653 fprintf (stderr
, "\n");
5654 delete_temp_files ();
5659 error
VPROTO((const char *msgid
, ...))
5661 #ifndef ANSI_PROTOTYPES
5666 VA_START (ap
, msgid
);
5668 #ifndef ANSI_PROTOTYPES
5669 msgid
= va_arg (ap
, const char *);
5672 fprintf (stderr
, "%s: ", programname
);
5673 vfprintf (stderr
, _(msgid
), ap
);
5676 fprintf (stderr
, "\n");
5680 notice
VPROTO((const char *msgid
, ...))
5682 #ifndef ANSI_PROTOTYPES
5687 VA_START (ap
, msgid
);
5689 #ifndef ANSI_PROTOTYPES
5690 msgid
= va_arg (ap
, const char *);
5693 vfprintf (stderr
, _(msgid
), ap
);
5699 validate_all_switches ()
5701 struct compiler
*comp
;
5702 register const char *p
;
5704 struct spec_list
*spec
;
5706 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5709 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5713 if (c
== '%' && *p
== '{')
5714 /* We have a switch spec. */
5715 validate_switches (p
+ 1);
5719 /* look through the linked list of specs read from the specs file */
5720 for (spec
= specs
; spec
; spec
= spec
->next
)
5722 p
= *(spec
->ptr_spec
);
5724 if (c
== '%' && *p
== '{')
5725 /* We have a switch spec. */
5726 validate_switches (p
+ 1);
5729 p
= link_command_spec
;
5731 if (c
== '%' && *p
== '{')
5732 /* We have a switch spec. */
5733 validate_switches (p
+ 1);
5736 /* Look at the switch-name that comes after START
5737 and mark as valid all supplied switches that match it. */
5740 validate_switches (start
)
5743 register const char *p
= start
;
5758 while (*p
!= ':' && *p
!= '}') p
++;
5762 else if (p
[-1] == '*')
5764 /* Mark all matching switches as valid. */
5766 for (i
= 0; i
< n_switches
; i
++)
5767 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5768 switches
[i
].validated
= 1;
5772 /* Mark an exact matching switch as valid. */
5773 for (i
= 0; i
< n_switches
; i
++)
5775 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5776 && switches
[i
].part1
[p
- filter
] == 0)
5777 switches
[i
].validated
= 1;
5782 /* Check whether a particular argument was used. The first time we
5783 canonicalize the switches to keep only the ones we care about. */
5797 static struct mswitchstr
*mswitches
;
5798 static int n_mswitches
;
5803 struct mswitchstr
*matches
;
5807 /* Break multilib_matches into the component strings of string and replacement
5809 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5813 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5815 q
= multilib_matches
;
5826 matches
[i
].len
= q
- matches
[i
].str
;
5828 matches
[i
].replace
= ++q
;
5829 while (*q
!= ';' && *q
!= '\0')
5835 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5843 /* Now build a list of the replacement string for switches that we care
5844 about. Make sure we allocate at least one entry. This prevents
5845 xmalloc from calling fatal, and prevents us from re-executing this
5848 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5849 * (n_switches
? n_switches
: 1));
5850 for (i
= 0; i
< n_switches
; i
++)
5852 int xlen
= strlen (switches
[i
].part1
);
5853 for (j
= 0; j
< cnt
; j
++)
5854 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5856 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5857 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5858 mswitches
[n_mswitches
].replace
= (char *)0;
5859 mswitches
[n_mswitches
].rep_len
= 0;
5866 for (i
= 0; i
< n_mswitches
; i
++)
5867 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5874 default_arg (p
, len
)
5880 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5882 while (*start
== ' ' || *start
== '\t')
5888 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5891 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5901 /* Work out the subdirectory to use based on the
5902 options. The format of multilib_select is a list of elements.
5903 Each element is a subdirectory name followed by a list of options
5904 followed by a semicolon. gcc will consider each line in turn. If
5905 none of the options beginning with an exclamation point are
5906 present, and all of the other options are present, that
5907 subdirectory will be used. */
5912 char *p
= multilib_select
;
5914 char *this_path
, *this_arg
;
5920 /* Ignore newlines. */
5927 /* Get the initial path. */
5935 this_path_len
= p
- this_path
;
5937 /* Check the arguments. */
5952 while (*p
!= ' ' && *p
!= ';')
5959 if (*this_arg
!= '!')
5967 /* If this is a default argument, we can just ignore it.
5968 This is true even if this_arg begins with '!'. Beginning
5969 with '!' does not mean that this argument is necessarily
5970 inappropriate for this library: it merely means that
5971 there is a more specific library which uses this
5972 argument. If this argument is a default, we need not
5973 consider that more specific library. */
5974 if (! default_arg (this_arg
, p
- this_arg
))
5976 ok
= used_arg (this_arg
, p
- this_arg
);
5987 if (this_path_len
!= 1
5988 || this_path
[0] != '.')
5990 char * new_multilib_dir
= xmalloc (this_path_len
+ 1);
5991 strncpy (new_multilib_dir
, this_path
, this_path_len
);
5992 new_multilib_dir
[this_path_len
] = '\0';
5993 multilib_dir
= new_multilib_dir
;
6002 /* Print out the multiple library subdirectory selection
6003 information. This prints out a series of lines. Each line looks
6004 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6005 required. Only the desired options are printed out, the negative
6006 matches. The options are print without a leading dash. There are
6007 no spaces to make it easy to use the information in the shell.
6008 Each subdirectory is printed only once. This assumes the ordering
6009 generated by the genmultilib script. */
6012 print_multilib_info ()
6014 char *p
= multilib_select
;
6015 char *last_path
= 0, *this_path
;
6017 int last_path_len
= 0;
6021 /* Ignore newlines. */
6028 /* Get the initial path. */
6037 /* If this is a duplicate, skip it. */
6038 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
6039 && ! strncmp (last_path
, this_path
, last_path_len
));
6041 last_path
= this_path
;
6042 last_path_len
= p
- this_path
;
6044 /* If this directory requires any default arguments, we can skip
6045 it. We will already have printed a directory identical to
6046 this one which does not require that default argument. */
6064 while (*q
!= ' ' && *q
!= ';')
6072 && default_arg (arg
, q
- arg
))
6087 for (p1
= last_path
; p1
< p
; p1
++)
6106 use_arg
= *p
!= '!';
6111 while (*p
!= ' ' && *p
!= ';')
6126 /* If there are extra options, print them now */
6127 if (multilib_extra
&& *multilib_extra
)
6129 int print_at
= TRUE
;
6132 for (q
= multilib_extra
; *q
!= '\0'; q
++)