1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
45 #define exit __posix_exit
48 #ifdef HAVE_SYS_RESOURCE_H
49 #include <sys/resource.h>
51 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
52 extern int getrusage
PARAMS ((int, struct rusage
*));
55 /* By default there is no special suffix for executables. */
56 #ifdef EXECUTABLE_SUFFIX
57 #define HAVE_EXECUTABLE_SUFFIX
59 #define EXECUTABLE_SUFFIX ""
62 /* By default, the suffix for object files is ".o". */
64 #define HAVE_OBJECT_SUFFIX
66 #define OBJECT_SUFFIX ".o"
70 /* FIXME: the location independence code for VMS is hairier than this,
71 and hasn't been written. */
77 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
79 #define obstack_chunk_alloc xmalloc
80 #define obstack_chunk_free free
82 #ifndef GET_ENV_PATH_LIST
83 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
86 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
87 #ifndef LIBRARY_PATH_ENV
88 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
92 #define kill(p,s) raise(s)
95 /* If a stage of compilation returns an exit status >= 1,
96 compilation of that file ceases. */
98 #define MIN_FATAL_STATUS 1
100 /* Flag saying to pass the greatest exit code returned by a sub-process
101 to the calling program. */
102 static int pass_exit_codes
;
104 /* Flag saying to print the directories gcc will search through looking for
105 programs, libraries, etc. */
107 static int print_search_dirs
;
109 /* Flag saying to print the full filename of this file
110 as found through our usual search mechanism. */
112 static const char *print_file_name
= NULL
;
114 /* As print_file_name, but search for executable file. */
116 static const char *print_prog_name
= NULL
;
118 /* Flag saying to print the relative path we'd use to
119 find libgcc.a given the current compiler flags. */
121 static int print_multi_directory
;
123 /* Flag saying to print the list of subdirectories and
124 compiler flags used to select them in a standard form. */
126 static int print_multi_lib
;
128 /* Flag saying to print the command line options understood by gcc and its
131 static int print_help_list
;
133 /* Flag indicating whether we should print the command and arguments */
135 static int verbose_flag
;
137 /* Flag indicating whether we should report subprocess execution times
138 (if this is supported by the system - see pexecute.c). */
140 static int report_times
;
142 /* Nonzero means write "temp" files in source directory
143 and use the source file's name in them, and don't delete them. */
145 static int save_temps_flag
;
147 /* The compiler version. */
149 static const char *compiler_version
;
151 /* The target version specified with -V */
153 static const char *spec_version
= DEFAULT_TARGET_VERSION
;
155 /* The target machine specified with -b. */
157 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
159 /* Nonzero if cross-compiling.
160 When -b is used, the value comes from the `specs' file. */
163 static const char *cross_compile
= "1";
165 static const char *cross_compile
= "0";
168 /* The number of errors that have occurred; the link phase will not be
169 run if this is non-zero. */
170 static int error_count
= 0;
172 /* Greatest exit code of sub-processes that has been encountered up to
174 static int greatest_status
= 1;
176 /* This is the obstack which we use to allocate many strings. */
178 static struct obstack obstack
;
180 /* This is the obstack to build an environment variable to pass to
181 collect2 that describes all of the relevant switches of what to
182 pass the compiler in building the list of pointers to constructors
185 static struct obstack collect_obstack
;
187 /* These structs are used to collect resource usage information for
189 #ifdef HAVE_GETRUSAGE
190 static struct rusage rus
, prus
;
193 /* Forward declaration for prototypes. */
196 static void init_spec
PARAMS ((void));
198 static char **split_directories
PARAMS ((const char *, int *));
199 static void free_split_directories
PARAMS ((char **));
200 static char *make_relative_prefix
PARAMS ((const char *, const char *, const char *));
202 static void store_arg
PARAMS ((const char *, int, int));
203 static char *load_specs
PARAMS ((const char *));
204 static void read_specs
PARAMS ((const char *, int));
205 static void set_spec
PARAMS ((const char *, const char *));
206 static struct compiler
*lookup_compiler
PARAMS ((const char *, size_t, const char *));
207 static char *build_search_list
PARAMS ((struct path_prefix
*, const char *, int));
208 static void putenv_from_prefixes
PARAMS ((struct path_prefix
*, const char *));
209 static int access_check
PARAMS ((const char *, int));
210 static char *find_a_file
PARAMS ((struct path_prefix
*, const char *, int));
211 static void add_prefix
PARAMS ((struct path_prefix
*, const char *,
212 const char *, int, int, int *));
213 static void translate_options
PARAMS ((int *, const char ***));
214 static char *skip_whitespace
PARAMS ((char *));
215 static void record_temp_file
PARAMS ((const char *, int, int));
216 static void delete_if_ordinary
PARAMS ((const char *));
217 static void delete_temp_files
PARAMS ((void));
218 static void delete_failure_queue
PARAMS ((void));
219 static void clear_failure_queue
PARAMS ((void));
220 static int check_live_switch
PARAMS ((int, int));
221 static const char *handle_braces
PARAMS ((const char *));
222 static char *save_string
PARAMS ((const char *, int));
223 static int do_spec_1
PARAMS ((const char *, int, const char *));
224 static const char *find_file
PARAMS ((const char *));
225 static int is_directory
PARAMS ((const char *, const char *, int));
226 static void validate_switches
PARAMS ((const char *));
227 static void validate_all_switches
PARAMS ((void));
228 static void give_switch
PARAMS ((int, int, int));
229 static int used_arg
PARAMS ((const char *, int));
230 static int default_arg
PARAMS ((const char *, int));
231 static void set_multilib_dir
PARAMS ((void));
232 static void print_multilib_info
PARAMS ((void));
233 static void pfatal_with_name
PARAMS ((const char *)) ATTRIBUTE_NORETURN
;
234 static void perror_with_name
PARAMS ((const char *));
235 static void pfatal_pexecute
PARAMS ((const char *, const char *))
237 static void error
PARAMS ((const char *, ...))
239 static void notice
PARAMS ((const char *, ...))
241 static void display_help
PARAMS ((void));
242 static void add_preprocessor_option
PARAMS ((const char *, int));
243 static void add_assembler_option
PARAMS ((const char *, int));
244 static void add_linker_option
PARAMS ((const char *, int));
245 static void process_command
PARAMS ((int, const char **));
246 static int execute
PARAMS ((void));
247 static void unused_prefix_warnings
PARAMS ((struct path_prefix
*));
248 static void clear_args
PARAMS ((void));
249 static void fatal_error
PARAMS ((int));
250 static void set_input
PARAMS ((const char *));
252 /* Specs are strings containing lines, each of which (if not blank)
253 is made up of a program name, and arguments separated by spaces.
254 The program name must be exact and start from root, since no path
255 is searched and it is unreliable to depend on the current working directory.
256 Redirection of input or output is not supported; the subprograms must
257 accept filenames saying what files to read and write.
259 In addition, the specs can contain %-sequences to substitute variable text
260 or for conditional text. Here is a table of all defined %-sequences.
261 Note that spaces are not generated automatically around the results of
262 expanding these sequences; therefore, you can concatenate them together
263 or with constant text in a single argument.
265 %% substitute one % into the program name or argument.
266 %i substitute the name of the input file being processed.
267 %b substitute the basename of the input file being processed.
268 This is the substring up to (and not including) the last period
269 and not including the directory.
271 substitute a file name that has suffix SUFFIX and is chosen
272 once per compilation, and mark the argument a la %d. To reduce
273 exposure to denial-of-service attacks, the file name is now
274 chosen in a way that is hard to predict even when previously
275 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
276 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
277 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
278 had been pre-processed. Previously, %g was simply substituted
279 with a file name chosen once per compilation, without regard
280 to any appended suffix (which was therefore treated just like
281 ordinary text), making such attacks more likely to succeed.
283 like %g, but generates a new temporary file name even if %uSUFFIX
286 substitutes the last file name generated with %uSUFFIX, generating a
287 new one if there is no such last file name. In the absence of any
288 %uSUFFIX, this is just like %gSUFFIX, except they don't share
289 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
290 would involve the generation of two distinct file names, one
291 for each `%g.s' and another for each `%U.s'. Previously, %U was
292 simply substituted with a file name chosen for the previous %u,
293 without regard to any appended suffix.
294 %d marks the argument containing or following the %d as a
295 temporary file name, so that that file will be deleted if CC exits
296 successfully. Unlike %g, this contributes no text to the argument.
297 %w marks the argument containing or following the %w as the
298 "output file" of this compilation. This puts the argument
299 into the sequence of arguments that %o will substitute later.
301 like %{...} but mark last argument supplied within
302 as a file to be deleted on failure.
303 %o substitutes the names of all the output files, with spaces
304 automatically placed around them. You should write spaces
305 around the %o as well or the results are undefined.
306 %o is for use in the specs for running the linker.
307 Input files whose names have no recognized suffix are not compiled
308 at all, but they are included among the output files, so they will
310 %O substitutes the suffix for object files. Note that this is
311 handled specially when it immediately follows %g, %u, or %U
312 (with or without a suffix argument) because of the need for
313 those to form complete file names. The handling is such that
314 %O is treated exactly as if it had already been substituted,
315 except that %g, %u, and %U do not currently support additional
316 SUFFIX characters following %O as they would following, for
318 %p substitutes the standard macro predefinitions for the
319 current target machine. Use this when running cpp.
320 %P like %p, but puts `__' before and after the name of each macro.
321 (Except macros that already have __.)
323 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
324 %s current argument is the name of a library or startup file of some sort.
325 Search for that file in a standard list of directories
326 and substitute the full name found.
327 %eSTR Print STR as an error message. STR is terminated by a newline.
328 Use this when inconsistent options are detected.
329 %x{OPTION} Accumulate an option for %X.
330 %X Output the accumulated linker options specified by compilations.
331 %Y Output the accumulated assembler options specified by compilations.
332 %Z Output the accumulated preprocessor options specified by compilations.
333 %v1 Substitute the major version number of GCC.
334 (For version 2.5.3, this is 2.)
335 %v2 Substitute the minor version number of GCC.
336 (For version 2.5.3, this is 5.)
337 %v3 Substitute the patch level number of GCC.
338 (For version 2.5.3, this is 3.)
339 %a process ASM_SPEC as a spec.
340 This allows config.h to specify part of the spec for running as.
341 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
342 used here. This can be used to run a post-processor after the
343 assembler has done its job.
344 %D Dump out a -L option for each directory in startfile_prefixes.
345 If multilib_dir is set, extra entries are generated with it affixed.
346 %l process LINK_SPEC as a spec.
347 %L process LIB_SPEC as a spec.
348 %G process LIBGCC_SPEC as a spec.
349 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
350 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
351 %c process SIGNED_CHAR_SPEC as a spec.
352 %C process CPP_SPEC as a spec. A capital C is actually used here.
353 %1 process CC1_SPEC as a spec.
354 %2 process CC1PLUS_SPEC as a spec.
355 %| output "-" if the input for the current command is coming from a pipe.
356 %* substitute the variable part of a matched option. (See below.)
357 Note that each comma in the substituted string is replaced by
359 %{S} substitutes the -S switch, if that switch was given to CC.
360 If that switch was not specified, this substitutes nothing.
361 Here S is a metasyntactic variable.
362 %{S*} substitutes all the switches specified to CC whose names start
363 with -S. This is used for -o, -D, -I, etc; switches that take
364 arguments. CC considers `-o foo' as being one switch whose
365 name starts with `o'. %{o*} would substitute this text,
366 including the space; thus, two arguments would be generated.
367 %{^S*} likewise, but don't put a blank between a switch and any args.
368 %{S*:X} substitutes X if one or more switches whose names start with -S are
369 specified to CC. Note that the tail part of the -S option
370 (i.e. the part matched by the `*') will be substituted for each
371 occurrence of %* within X.
372 %{<S} remove all occurences of S from the command line.
373 Note - this option is position dependent. % commands in the
374 spec string before this option will see S, % commands in the
375 spec string after this option will not.
376 %{S:X} substitutes X, but only if the -S switch was given to CC.
377 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
378 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
379 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
380 %{.S:X} substitutes X, but only if processing a file with suffix S.
381 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
382 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
383 combined with ! and . as above binding stronger than the OR.
384 %(Spec) processes a specification defined in a specs file as *Spec:
385 %[Spec] as above, but put __ around -D arguments
387 The conditional text X in a %{S:X} or %{!S:X} construct may contain
388 other nested % constructs or spaces, or even newlines. They are
389 processed as usual, as described above.
391 The -O, -f, -m, and -W switches are handled specifically in these
392 constructs. If another value of -O or the negated form of a -f, -m, or
393 -W switch is found later in the command line, the earlier switch
394 value is ignored, except with {S*} where S is just one letter; this
395 passes all matching options.
397 The character | at the beginning of the predicate text is used to indicate
398 that a command should be piped to the following command, but only if -pipe
401 Note that it is built into CC which switches take arguments and which
402 do not. You might think it would be useful to generalize this to
403 allow each compiler's spec to say which switches take arguments. But
404 this cannot be done in a consistent fashion. CC cannot even decide
405 which input files have been specified without knowing which switches
406 take arguments, and it must know which input files to compile in order
407 to tell which compilers to run.
409 CC also knows implicitly that arguments starting in `-l' are to be
410 treated as compiler output files, and passed to the linker in their
411 proper position among the other output files. */
413 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
415 /* config.h can define ASM_SPEC to provide extra args to the assembler
416 or extra switch-translations. */
421 /* config.h can define ASM_FINAL_SPEC to run a post processor after
422 the assembler has run. */
423 #ifndef ASM_FINAL_SPEC
424 #define ASM_FINAL_SPEC ""
427 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
428 or extra switch-translations. */
433 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
434 or extra switch-translations. */
439 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
440 or extra switch-translations. */
442 #define CC1PLUS_SPEC ""
445 /* config.h can define LINK_SPEC to provide extra args to the linker
446 or extra switch-translations. */
451 /* config.h can define LIB_SPEC to override the default libraries. */
453 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
456 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
459 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
460 /* Have gcc do the search for libgcc.a. */
461 #define LIBGCC_SPEC "libgcc.a%s"
463 #define LIBGCC_SPEC "-lgcc"
467 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
468 #ifndef STARTFILE_SPEC
469 #define STARTFILE_SPEC \
470 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
473 /* config.h can define SWITCHES_NEED_SPACES to control which options
474 require spaces between the option and the argument. */
475 #ifndef SWITCHES_NEED_SPACES
476 #define SWITCHES_NEED_SPACES ""
479 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
481 #define ENDFILE_SPEC ""
484 /* This spec is used for telling cpp whether char is signed or not. */
485 #ifndef SIGNED_CHAR_SPEC
486 /* Use #if rather than ?:
487 because MIPS C compiler rejects like ?: in initializers. */
488 #if DEFAULT_SIGNED_CHAR
489 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
491 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
496 #define LINKER_NAME "collect2"
499 static const char *cpp_spec
= CPP_SPEC
;
500 static const char *cpp_predefines
= CPP_PREDEFINES
;
501 static const char *cc1_spec
= CC1_SPEC
;
502 static const char *cc1plus_spec
= CC1PLUS_SPEC
;
503 static const char *signed_char_spec
= SIGNED_CHAR_SPEC
;
504 static const char *asm_spec
= ASM_SPEC
;
505 static const char *asm_final_spec
= ASM_FINAL_SPEC
;
506 static const char *link_spec
= LINK_SPEC
;
507 static const char *lib_spec
= LIB_SPEC
;
508 static const char *libgcc_spec
= LIBGCC_SPEC
;
509 static const char *endfile_spec
= ENDFILE_SPEC
;
510 static const char *startfile_spec
= STARTFILE_SPEC
;
511 static const char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
512 static const char *linker_name_spec
= LINKER_NAME
;
514 /* Some compilers have limits on line lengths, and the multilib_select
515 and/or multilib_matches strings can be very long, so we build them at
517 static struct obstack multilib_obstack
;
518 static const char *multilib_select
;
519 static const char *multilib_matches
;
520 static const char *multilib_defaults
;
521 static const char *multilib_exclusions
;
522 #include "multilib.h"
524 /* Check whether a particular argument is a default argument. */
526 #ifndef MULTILIB_DEFAULTS
527 #define MULTILIB_DEFAULTS { "" }
530 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
534 struct user_specs
*next
;
535 const char *filename
;
538 static struct user_specs
*user_specs_head
, *user_specs_tail
;
540 /* This defines which switch letters take arguments. */
542 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
543 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
544 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
545 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
546 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
547 || (CHAR) == 'B' || (CHAR) == 'b')
549 #ifndef SWITCH_TAKES_ARG
550 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
553 /* This defines which multi-letter switches take arguments. */
555 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
556 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
557 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
558 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
559 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
560 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
561 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
563 #ifndef WORD_SWITCH_TAKES_ARG
564 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
568 #ifdef HAVE_EXECUTABLE_SUFFIX
569 /* This defines which switches stop a full compilation. */
570 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
571 ((CHAR) == 'c' || (CHAR) == 'S')
573 #ifndef SWITCH_CURTAILS_COMPILATION
574 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
575 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
579 /* Record the mapping from file suffixes for compilation specs. */
583 const char *suffix
; /* Use this compiler for input files
584 whose names end in this suffix. */
586 const char *spec
[4]; /* To use this compiler, concatenate these
587 specs and pass to do_spec. */
590 /* Pointer to a vector of `struct compiler' that gives the spec for
591 compiling a file, based on its suffix.
592 A file that does not end in any of these suffixes will be passed
593 unchanged to the loader and nothing else will be done to it.
595 An entry containing two 0s is used to terminate the vector.
597 If multiple entries match a file, the last matching one is used. */
599 static struct compiler
*compilers
;
601 /* Number of entries in `compilers', not counting the null terminator. */
603 static int n_compilers
;
605 /* The default list of file name suffixes and their compilation specs. */
607 static struct compiler default_compilers
[] =
609 /* Add lists of suffixes of known languages here. If those languages
610 were not present when we built the driver, we will hit these copies
611 and be given a more meaningful error than "file not used since
612 linking is not done". */
613 {".m", {"#Objective-C"}},
614 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
615 {".c++", {"#C++"}}, {".C", {"#C++"}},
616 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
617 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
618 {".fpp", {"#Fortran"}},
619 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
620 /* Next come the entries for C. */
625 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
626 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
627 %{C:%{!E:%eGNU C does not support -C without using -E}}\
628 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
629 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
630 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
631 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
632 %{ffast-math:-D__FAST_MATH__}\
633 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
634 %{traditional} %{ftraditional:-traditional}\
635 %{traditional-cpp:-traditional}\
636 %{fleading-underscore} %{fno-leading-underscore}\
637 %{fshow-column} %{fno-show-column}\
638 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
639 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
640 %{!E:%{!M:%{!MM:cc1 %i %1 \
641 %{std*} %{nostdinc*} %{A*} %{I*} %I\
642 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
643 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
644 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
645 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
646 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
647 %{ffast-math:-D__FAST_MATH__}\
648 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
649 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
650 %{H} %C %{D*} %{U*} %{i*} %Z\
651 %{ftraditional:-traditional}\
652 %{traditional-cpp:-traditional}\
653 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
654 %{aux-info*} %{Qn:-fno-ident}\
656 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
660 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
661 %{!pipe:%g.s} %A\n }}}}"
662 #else /* ! USE_CPPLIB */
663 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
664 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
665 %{C:%{!E:%eGNU C does not support -C without using -E}}\
666 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
667 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
668 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
669 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
670 %{ffast-math:-D__FAST_MATH__}\
671 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
672 %{traditional} %{ftraditional:-traditional}\
673 %{traditional-cpp:-traditional}\
674 %{fshow-column} %{fno-show-column}\
675 %{fleading-underscore} %{fno-leading-underscore}\
676 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
677 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
678 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
679 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
680 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
681 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
682 %{aux-info*} %{Qn:-fno-ident}\
684 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
685 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
687 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
688 %{!pipe:%g.s} %A\n }}}}"
689 #endif /* ! USE_CPPLIB */
692 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
693 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
694 %{C:%{!E:%eGNU C does not support -C without using -E}}\
695 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
696 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
697 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
698 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
699 %{ffast-math:-D__FAST_MATH__}\
700 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
701 %{traditional} %{ftraditional:-traditional}\
702 %{traditional-cpp:-traditional}\
703 %{fshow-column} %{fno-show-column}\
704 %{fleading-underscore} %{fno-leading-underscore}\
705 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
707 %{!E:%e-E required when input is from standard input}"}},
708 {".h", {"@c-header"}},
710 {"%{!E:%eCompilation of header file requested} \
711 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
712 %{C:%{!E:%eGNU C does not support -C without using -E}}\
713 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
714 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
715 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
716 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
717 %{ffast-math:-D__FAST_MATH__}\
718 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
719 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
720 %{traditional} %{ftraditional:-traditional}\
721 %{traditional-cpp:-traditional}\
722 %{fshow-column} %{fno-show-column}\
723 %{fleading-underscore} %{fno-leading-underscore}\
724 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
726 {".i", {"@cpp-output"}},
728 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
729 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
730 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
731 %{aux-info*} %{Qn:-fno-ident} -fpreprocessed\
732 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
733 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
735 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
736 %{!pipe:%g.s} %A\n }}}}"}},
737 {".s", {"@assembler"}},
739 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
740 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
742 {".S", {"@assembler-with-cpp"}},
743 {"@assembler-with-cpp",
744 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
745 %{C:%{!E:%eGNU C does not support -C without using -E}}\
746 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
747 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
748 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
749 %{ffast-math:-D__FAST_MATH__}\
750 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
751 %{traditional} %{ftraditional:-traditional}\
752 %{traditional-cpp:-traditional}\
753 %{fshow-column} %{fno-show-column}\
754 %{fleading-underscore} %{fno-leading-underscore}\
755 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
756 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
757 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
758 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
759 %{!pipe:%g.s} %A\n }}}}"}},
761 /* Mark end of table */
765 /* Number of elements in default_compilers, not counting the terminator. */
767 static int n_default_compilers
768 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
770 /* Here is the spec for running the linker, after compiling all files. */
772 /* -u* was put back because both BSD and SysV seem to support it. */
773 /* %{static:} simply prevents an error message if the target machine
774 doesn't handle -static. */
775 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
776 scripts which exist in user specified directories, or in standard
778 #ifdef LINK_COMMAND_SPEC
779 /* Provide option to override link_command_spec from machine specific
780 configuration files. */
781 static const char *link_command_spec
=
784 #ifdef LINK_LIBGCC_SPECIAL
785 /* Don't generate -L options. */
786 static const char *link_command_spec
= "\
788 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
789 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
793 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
798 static const char *link_command_spec
= "\
800 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
801 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
802 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
803 %{static:} %{L*} %D %o\
804 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
805 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
811 /* A vector of options to give to the linker.
812 These options are accumulated by %x,
813 and substituted into the linker command with %X. */
814 static int n_linker_options
;
815 static char **linker_options
;
817 /* A vector of options to give to the assembler.
818 These options are accumulated by -Wa,
819 and substituted into the assembler command with %Y. */
820 static int n_assembler_options
;
821 static char **assembler_options
;
823 /* A vector of options to give to the preprocessor.
824 These options are accumulated by -Wp,
825 and substituted into the preprocessor command with %Z. */
826 static int n_preprocessor_options
;
827 static char **preprocessor_options
;
829 /* Define how to map long options into short ones. */
831 /* This structure describes one mapping. */
834 /* The long option's name. */
836 /* The equivalent short option. */
837 const char *equivalent
;
838 /* Argument info. A string of flag chars; NULL equals no options.
839 a => argument required.
840 o => argument optional.
841 j => join argument to equivalent, making one word.
842 * => require other text after NAME as an argument. */
843 const char *arg_info
;
846 /* This is the table of mappings. Mappings are tried sequentially
847 for each option encountered; the first one that matches, wins. */
849 struct option_map option_map
[] =
851 {"--all-warnings", "-Wall", 0},
852 {"--ansi", "-ansi", 0},
853 {"--assemble", "-S", 0},
854 {"--assert", "-A", "a"},
855 {"--classpath", "-fclasspath=", "aj"},
856 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
857 {"--comments", "-C", 0},
858 {"--compile", "-c", 0},
859 {"--debug", "-g", "oj"},
860 {"--define-macro", "-D", "aj"},
861 {"--dependencies", "-M", 0},
862 {"--dump", "-d", "a"},
863 {"--dumpbase", "-dumpbase", "a"},
864 {"--entry", "-e", 0},
865 {"--extra-warnings", "-W", 0},
866 {"--for-assembler", "-Wa", "a"},
867 {"--for-linker", "-Xlinker", "a"},
868 {"--force-link", "-u", "a"},
869 {"--imacros", "-imacros", "a"},
870 {"--include", "-include", "a"},
871 {"--include-barrier", "-I-", 0},
872 {"--include-directory", "-I", "aj"},
873 {"--include-directory-after", "-idirafter", "a"},
874 {"--include-prefix", "-iprefix", "a"},
875 {"--include-with-prefix", "-iwithprefix", "a"},
876 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
877 {"--include-with-prefix-after", "-iwithprefix", "a"},
878 {"--language", "-x", "a"},
879 {"--library-directory", "-L", "a"},
880 {"--machine", "-m", "aj"},
881 {"--machine-", "-m", "*j"},
882 {"--no-line-commands", "-P", 0},
883 {"--no-precompiled-includes", "-noprecomp", 0},
884 {"--no-standard-includes", "-nostdinc", 0},
885 {"--no-standard-libraries", "-nostdlib", 0},
886 {"--no-warnings", "-w", 0},
887 {"--optimize", "-O", "oj"},
888 {"--output", "-o", "a"},
889 {"--output-class-directory", "-foutput-class-dir=", "ja"},
890 {"--pedantic", "-pedantic", 0},
891 {"--pedantic-errors", "-pedantic-errors", 0},
892 {"--pipe", "-pipe", 0},
893 {"--prefix", "-B", "a"},
894 {"--preprocess", "-E", 0},
895 {"--print-search-dirs", "-print-search-dirs", 0},
896 {"--print-file-name", "-print-file-name=", "aj"},
897 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
898 {"--print-missing-file-dependencies", "-MG", 0},
899 {"--print-multi-lib", "-print-multi-lib", 0},
900 {"--print-multi-directory", "-print-multi-directory", 0},
901 {"--print-prog-name", "-print-prog-name=", "aj"},
902 {"--profile", "-p", 0},
903 {"--profile-blocks", "-a", 0},
904 {"--quiet", "-q", 0},
905 {"--save-temps", "-save-temps", 0},
906 {"--shared", "-shared", 0},
907 {"--silent", "-q", 0},
908 {"--specs", "-specs=", "aj"},
909 {"--static", "-static", 0},
910 {"--std", "-std=", "aj"},
911 {"--symbolic", "-symbolic", 0},
912 {"--target", "-b", "a"},
913 {"--time", "-time", 0},
914 {"--trace-includes", "-H", 0},
915 {"--traditional", "-traditional", 0},
916 {"--traditional-cpp", "-traditional-cpp", 0},
917 {"--trigraphs", "-trigraphs", 0},
918 {"--undefine-macro", "-U", "aj"},
919 {"--use-version", "-V", "a"},
920 {"--user-dependencies", "-MM", 0},
921 {"--verbose", "-v", 0},
922 {"--version", "-dumpversion", 0},
923 {"--warn-", "-W", "*j"},
924 {"--write-dependencies", "-MD", 0},
925 {"--write-user-dependencies", "-MMD", 0},
929 /* Translate the options described by *ARGCP and *ARGVP.
930 Make a new vector and store it back in *ARGVP,
931 and store its length in *ARGVC. */
934 translate_options (argcp
, argvp
)
940 const char **argv
= *argvp
;
942 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
946 newv
[newindex
++] = argv
[i
++];
950 /* Translate -- options. */
951 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
954 /* Find a mapping that applies to this option. */
955 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
957 size_t optlen
= strlen (option_map
[j
].name
);
958 size_t arglen
= strlen (argv
[i
]);
959 size_t complen
= arglen
> optlen
? optlen
: arglen
;
960 const char *arginfo
= option_map
[j
].arg_info
;
965 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
973 k
< sizeof (option_map
) / sizeof (option_map
[0]);
975 if (strlen (option_map
[k
].name
) >= arglen
976 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
978 error ("Ambiguous abbreviation %s", argv
[i
]);
982 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
988 /* If the option has an argument, accept that. */
989 if (argv
[i
][optlen
] == '=')
990 arg
= argv
[i
] + optlen
+ 1;
992 /* If this mapping requires extra text at end of name,
993 accept that as "argument". */
994 else if (index (arginfo
, '*') != 0)
995 arg
= argv
[i
] + optlen
;
997 /* Otherwise, extra text at end means mismatch.
998 Try other mappings. */
1003 else if (index (arginfo
, '*') != 0)
1005 error ("Incomplete `%s' option", option_map
[j
].name
);
1009 /* Handle arguments. */
1010 if (index (arginfo
, 'a') != 0)
1016 error ("Missing argument to `%s' option",
1017 option_map
[j
].name
);
1024 else if (index (arginfo
, '*') != 0)
1026 else if (index (arginfo
, 'o') == 0)
1029 error ("Extraneous argument to `%s' option",
1030 option_map
[j
].name
);
1034 /* Store the translation as one argv elt or as two. */
1035 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1036 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1040 newv
[newindex
++] = option_map
[j
].equivalent
;
1041 newv
[newindex
++] = arg
;
1044 newv
[newindex
++] = option_map
[j
].equivalent
;
1052 /* Handle old-fashioned options--just copy them through,
1053 with their arguments. */
1054 else if (argv
[i
][0] == '-')
1056 const char *p
= argv
[i
] + 1;
1060 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1061 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1062 else if (WORD_SWITCH_TAKES_ARG (p
))
1063 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1064 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1067 else if (! strcmp (p
, "Xlinker"))
1070 /* Watch out for an option at the end of the command line that
1071 is missing arguments, and avoid skipping past the end of the
1073 if (nskip
+ i
> argc
)
1078 newv
[newindex
++] = argv
[i
++];
1083 /* Ordinary operands, or +e options. */
1084 newv
[newindex
++] = argv
[i
++];
1099 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1100 be considered whitespace. */
1101 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1103 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1107 while (*p
!= '\n') p
++;
1117 /* Structure to keep track of the specs that have been defined so far.
1118 These are accessed using %(specname) or %[specname] in a compiler
1123 /* The following 2 fields must be first */
1124 /* to allow EXTRA_SPECS to be initialized */
1125 const char *name
; /* name of the spec. */
1126 const char *ptr
; /* available ptr if no static pointer */
1128 /* The following fields are not initialized */
1129 /* by EXTRA_SPECS */
1130 const char **ptr_spec
; /* pointer to the spec itself. */
1131 struct spec_list
*next
; /* Next spec in linked list. */
1132 int name_len
; /* length of the name */
1133 int alloc_p
; /* whether string was allocated */
1136 #define INIT_STATIC_SPEC(NAME,PTR) \
1137 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1139 /* List of statically defined specs. */
1140 static struct spec_list static_specs
[] =
1142 INIT_STATIC_SPEC ("asm", &asm_spec
),
1143 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1144 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1145 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1146 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1147 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1148 INIT_STATIC_SPEC ("link", &link_spec
),
1149 INIT_STATIC_SPEC ("lib", &lib_spec
),
1150 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1151 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1152 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1153 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1154 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1155 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1156 INIT_STATIC_SPEC ("version", &compiler_version
),
1157 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1158 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1159 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1160 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1161 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions
),
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
;
1236 const char *old_spec
;
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
)
1284 free ((PTR
) old_spec
);
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 const 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 const 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 = (const char **) xrealloc (argbuf
,
1449 (argbuf_length
*= 2) * sizeof (const char *));
1451 argbuf
[argbuf_index
++] = arg
;
1452 argbuf
[argbuf_index
] = 0;
1454 if (delete_always
|| delete_failure
)
1455 record_temp_file (arg
, delete_always
, delete_failure
);
1458 /* Load specs from a file name named FILENAME, replacing occurances of
1459 various different types of line-endings, \r\n, \n\r and just \r, with
1463 load_specs (filename
)
1464 const char *filename
;
1468 struct stat statbuf
;
1475 notice ("Reading specs from %s\n", filename
);
1477 /* Open and stat the file. */
1478 desc
= open (filename
, O_RDONLY
, 0);
1480 pfatal_with_name (filename
);
1481 if (stat (filename
, &statbuf
) < 0)
1482 pfatal_with_name (filename
);
1484 /* Read contents of file into BUFFER. */
1485 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1486 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1488 pfatal_with_name (filename
);
1489 buffer
[readlen
] = 0;
1492 specs
= xmalloc (readlen
+ 1);
1494 for (buffer_p
= buffer
; buffer_p
&& *buffer_p
; buffer_p
++)
1500 if (buffer_p
> buffer
&& *(buffer_p
-1) == '\n') /* \n\r */
1502 else if (*(buffer_p
+1) == '\n') /* \r\n */
1516 /* Read compilation specs from a file named FILENAME,
1517 replacing the default ones.
1519 A suffix which starts with `*' is a definition for
1520 one of the machine-specific sub-specs. The "suffix" should be
1521 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1522 The corresponding spec is stored in asm_spec, etc.,
1523 rather than in the `compilers' vector.
1525 Anything invalid in the file is a fatal error. */
1528 read_specs (filename
, main_p
)
1529 const char *filename
;
1535 buffer
= load_specs (filename
);
1537 /* Scan BUFFER for specs, putting them in the vector. */
1543 char *in
, *out
, *p1
, *p2
, *p3
;
1545 /* Advance P in BUFFER to the next nonblank nocomment line. */
1546 p
= skip_whitespace (p
);
1550 /* Is this a special command that starts with '%'? */
1551 /* Don't allow this for the main specs file, since it would
1552 encourage people to overwrite it. */
1553 if (*p
== '%' && !main_p
)
1556 while (*p
&& *p
!= '\n')
1559 p
++; /* Skip '\n' */
1561 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1562 && (p1
[sizeof "%include" - 1] == ' '
1563 || p1
[sizeof "%include" - 1] == '\t'))
1567 p1
+= sizeof ("%include");
1568 while (*p1
== ' ' || *p1
== '\t')
1571 if (*p1
++ != '<' || p
[-2] != '>')
1572 fatal ("specs %%include syntax malformed after %ld characters",
1573 (long) (p1
- buffer
+ 1));
1576 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1577 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1580 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1581 && (p1
[sizeof "%include_noerr" - 1] == ' '
1582 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1586 p1
+= sizeof "%include_noerr";
1587 while (*p1
== ' ' || *p1
== '\t') p1
++;
1589 if (*p1
++ != '<' || p
[-2] != '>')
1590 fatal ("specs %%include syntax malformed after %ld characters",
1591 (long) (p1
- buffer
+ 1));
1594 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1596 read_specs (new_filename
, FALSE
);
1597 else if (verbose_flag
)
1598 notice ("Could not find specs file %s\n", p1
);
1601 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1602 && (p1
[sizeof "%rename" - 1] == ' '
1603 || p1
[sizeof "%rename" - 1] == '\t'))
1606 struct spec_list
*sl
;
1608 /* Get original name */
1609 p1
+= sizeof "%rename";
1610 while (*p1
== ' ' || *p1
== '\t')
1613 if (! ISALPHA ((unsigned char)*p1
))
1614 fatal ("specs %%rename syntax malformed after %ld characters",
1615 (long) (p1
- buffer
));
1618 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1621 if (*p2
!= ' ' && *p2
!= '\t')
1622 fatal ("specs %%rename syntax malformed after %ld characters",
1623 (long) (p2
- buffer
));
1627 while (*p2
== ' ' || *p2
== '\t')
1630 if (! ISALPHA ((unsigned char)*p2
))
1631 fatal ("specs %%rename syntax malformed after %ld characters",
1632 (long) (p2
- buffer
));
1634 /* Get new spec name */
1636 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1640 fatal ("specs %%rename syntax malformed after %ld characters",
1641 (long) (p3
- buffer
));
1644 for (sl
= specs
; sl
; sl
= sl
->next
)
1645 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1649 fatal ("specs %s spec was not found to be renamed", p1
);
1651 if (strcmp (p1
, p2
) == 0)
1656 notice ("rename spec %s to %s\n", p1
, p2
);
1658 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1662 set_spec (p2
, *(sl
->ptr_spec
));
1664 free ((PTR
) *(sl
->ptr_spec
));
1666 *(sl
->ptr_spec
) = "";
1671 fatal ("specs unknown %% command after %ld characters",
1672 (long) (p1
- buffer
));
1675 /* Find the colon that should end the suffix. */
1677 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1680 /* The colon shouldn't be missing. */
1682 fatal ("specs file malformed after %ld characters",
1683 (long) (p1
- buffer
));
1685 /* Skip back over trailing whitespace. */
1687 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1690 /* Copy the suffix to a string. */
1691 suffix
= save_string (p
, p2
- p
);
1692 /* Find the next line. */
1693 p
= skip_whitespace (p1
+ 1);
1695 fatal ("specs file malformed after %ld characters",
1696 (long) (p
- buffer
));
1699 /* Find next blank line or end of string. */
1700 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1703 /* Specs end at the blank line and do not include the newline. */
1704 spec
= save_string (p
, p1
- p
);
1707 /* Delete backslash-newline sequences from the spec. */
1712 if (in
[0] == '\\' && in
[1] == '\n')
1714 else if (in
[0] == '#')
1715 while (*in
&& *in
!= '\n')
1723 if (suffix
[0] == '*')
1725 if (! strcmp (suffix
, "*link_command"))
1726 link_command_spec
= spec
;
1728 set_spec (suffix
+ 1, spec
);
1732 /* Add this pair to the vector. */
1734 = ((struct compiler
*)
1735 xrealloc (compilers
,
1736 (n_compilers
+ 2) * sizeof (struct compiler
)));
1738 compilers
[n_compilers
].suffix
= suffix
;
1739 memset (compilers
[n_compilers
].spec
, 0,
1740 sizeof compilers
[n_compilers
].spec
);
1741 compilers
[n_compilers
].spec
[0] = spec
;
1743 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1747 link_command_spec
= spec
;
1750 if (link_command_spec
== 0)
1751 fatal ("spec file has no spec for linking");
1754 /* Record the names of temporary files we tell compilers to write,
1755 and delete them at the end of the run. */
1757 /* This is the common prefix we use to make temp file names.
1758 It is chosen once for each run of this program.
1759 It is substituted into a spec by %g.
1760 Thus, all temp file names contain this prefix.
1761 In practice, all temp file names start with this prefix.
1763 This prefix comes from the envvar TMPDIR if it is defined;
1764 otherwise, from the P_tmpdir macro if that is defined;
1765 otherwise, in /usr/tmp or /tmp;
1766 or finally the current directory if all else fails. */
1768 static const char *temp_filename
;
1770 /* Length of the prefix. */
1772 static int temp_filename_length
;
1774 /* Define the list of temporary files to delete. */
1779 struct temp_file
*next
;
1782 /* Queue of files to delete on success or failure of compilation. */
1783 static struct temp_file
*always_delete_queue
;
1784 /* Queue of files to delete on failure of compilation. */
1785 static struct temp_file
*failure_delete_queue
;
1787 /* Record FILENAME as a file to be deleted automatically.
1788 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1789 otherwise delete it in any case.
1790 FAIL_DELETE nonzero means delete it if a compilation step fails;
1791 otherwise delete it in any case. */
1794 record_temp_file (filename
, always_delete
, fail_delete
)
1795 const char *filename
;
1799 register char * const name
= xstrdup (filename
);
1803 register struct temp_file
*temp
;
1804 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1805 if (! strcmp (name
, temp
->name
))
1808 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1809 temp
->next
= always_delete_queue
;
1811 always_delete_queue
= temp
;
1818 register struct temp_file
*temp
;
1819 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1820 if (! strcmp (name
, temp
->name
))
1823 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1824 temp
->next
= failure_delete_queue
;
1826 failure_delete_queue
= temp
;
1832 /* Delete all the temporary files whose names we previously recorded. */
1835 delete_if_ordinary (name
)
1842 printf ("Delete %s? (y or n) ", name
);
1846 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1849 if (i
== 'y' || i
== 'Y')
1851 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1852 if (unlink (name
) < 0)
1854 perror_with_name (name
);
1858 delete_temp_files ()
1860 register struct temp_file
*temp
;
1862 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1863 delete_if_ordinary (temp
->name
);
1864 always_delete_queue
= 0;
1867 /* Delete all the files to be deleted on error. */
1870 delete_failure_queue ()
1872 register struct temp_file
*temp
;
1874 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1875 delete_if_ordinary (temp
->name
);
1879 clear_failure_queue ()
1881 failure_delete_queue
= 0;
1884 /* Routine to add variables to the environment. We do this to pass
1885 the pathname of the gcc driver, and the directories search to the
1886 collect2 program, which is being run as ld. This way, we can be
1887 sure of executing the right compiler when collect2 wants to build
1888 constructors and destructors. Since the environment variables we
1889 use come from an obstack, we don't have to worry about allocating
1898 #ifndef VMS /* nor about VMS */
1900 extern char **environ
;
1901 char **old_environ
= environ
;
1905 int str_len
= strlen (str
);
1909 while ((ch
= *p
++) != '\0' && ch
!= '=')
1915 /* Search for replacing an existing environment variable, and
1916 count the number of total environment variables. */
1917 for (envp
= old_environ
; *envp
; envp
++)
1920 if (!strncmp (str
, *envp
, name_len
))
1927 /* Add a new environment variable */
1928 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1930 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1931 sizeof (char *) * (num_envs
+1));
1936 #endif /* HAVE_PUTENV */
1939 /* Build a list of search directories from PATHS.
1940 PREFIX is a string to prepend to the list.
1941 If CHECK_DIR_P is non-zero we ensure the directory exists.
1942 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1943 It is also used by the --print-search-dirs flag. */
1946 build_search_list (paths
, prefix
, check_dir_p
)
1947 struct path_prefix
*paths
;
1951 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1953 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1954 int first_time
= TRUE
;
1955 struct prefix_list
*pprefix
;
1957 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1958 obstack_1grow (&collect_obstack
, '=');
1960 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1962 int len
= strlen (pprefix
->prefix
);
1966 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1969 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1972 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1973 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1976 if (just_machine_suffix
1977 && pprefix
->require_machine_suffix
== 2
1979 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1982 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1985 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1986 obstack_grow (&collect_obstack
, just_machine_suffix
,
1990 if (! pprefix
->require_machine_suffix
)
1993 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1996 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
2000 obstack_1grow (&collect_obstack
, '\0');
2001 return obstack_finish (&collect_obstack
);
2004 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
2008 putenv_from_prefixes (paths
, env_var
)
2009 struct path_prefix
*paths
;
2010 const char *env_var
;
2012 putenv (build_search_list (paths
, env_var
, 1));
2017 /* FIXME: the location independence code for VMS is hairier than this,
2018 and hasn't been written. */
2020 /* Split a filename into component directories. */
2023 split_directories (name
, ptr_num_dirs
)
2032 /* Count the number of directories. Special case MSDOS disk names as part
2033 of the initial directory. */
2035 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2036 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2041 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2043 while ((ch
= *p
++) != '\0')
2045 if (IS_DIR_SEPARATOR (ch
))
2048 while (IS_DIR_SEPARATOR (*p
))
2053 dirs
= (char **) xmalloc (sizeof (char *) * (num_dirs
+ 2));
2055 /* Now copy the directory parts. */
2058 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2059 if (name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2061 dirs
[num_dirs
++] = save_string (p
, 3);
2064 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2067 while ((ch
= *p
++) != '\0')
2069 if (IS_DIR_SEPARATOR (ch
))
2071 while (IS_DIR_SEPARATOR (*p
))
2074 dirs
[num_dirs
++] = save_string (q
, p
- q
);
2080 dirs
[num_dirs
++] = save_string (q
, p
- 1 - q
);
2082 dirs
[num_dirs
] = NULL_PTR
;
2084 *ptr_num_dirs
= num_dirs
;
2089 /* Release storage held by split directories. */
2092 free_split_directories (dirs
)
2097 while (dirs
[i
] != NULL_PTR
)
2100 free ((char *)dirs
);
2103 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2104 to PREFIX starting with the directory portion of PROGNAME and a relative
2105 pathname of the difference between BIN_PREFIX and PREFIX.
2107 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2108 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2109 function will return /red/green/blue/../omega.
2111 If no relative prefix can be found, return NULL. */
2114 make_relative_prefix (progname
, bin_prefix
, prefix
)
2115 const char *progname
;
2116 const char *bin_prefix
;
2119 char **prog_dirs
, **bin_dirs
, **prefix_dirs
;
2120 int prog_num
, bin_num
, prefix_num
, std_loc_p
;
2123 prog_dirs
= split_directories (progname
, &prog_num
);
2124 bin_dirs
= split_directories (bin_prefix
, &bin_num
);
2126 /* If there is no full pathname, try to find the program by checking in each
2127 of the directories specified in the PATH environment variable. */
2132 GET_ENV_PATH_LIST (temp
, "PATH");
2135 char *startp
, *endp
;
2136 char *nstore
= (char *) alloca (strlen (temp
) + strlen (progname
) + 1);
2138 startp
= endp
= temp
;
2141 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2146 nstore
[1] = DIR_SEPARATOR
;
2151 strncpy (nstore
, startp
, endp
-startp
);
2152 if (! IS_DIR_SEPARATOR (endp
[-1]))
2154 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2155 nstore
[endp
-startp
+1] = 0;
2158 nstore
[endp
-startp
] = 0;
2160 strcat (nstore
, progname
);
2161 if (! access (nstore
, X_OK
)
2162 #ifdef HAVE_EXECUTABLE_SUFFIX
2163 || ! access (strcat (nstore
, EXECUTABLE_SUFFIX
), X_OK
)
2167 free_split_directories (prog_dirs
);
2169 prog_dirs
= split_directories (progname
, &prog_num
);
2175 endp
= startp
= endp
+ 1;
2183 /* Remove the program name from comparison of directory names. */
2186 /* Determine if the compiler is installed in the standard location, and if
2187 so, we don't need to specify relative directories. Also, if argv[0]
2188 doesn't contain any directory specifiers, there is not much we can do. */
2190 if (prog_num
== bin_num
)
2192 for (i
= 0; i
< bin_num
; i
++)
2194 if (strcmp (prog_dirs
[i
], bin_dirs
[i
]) != 0)
2198 if (prog_num
<= 0 || i
== bin_num
)
2201 free_split_directories (prog_dirs
);
2202 free_split_directories (bin_dirs
);
2203 prog_dirs
= bin_dirs
= (char **)0;
2208 prefix_dirs
= split_directories (prefix
, &prefix_num
);
2210 /* Find how many directories are in common between bin_prefix & prefix. */
2211 n
= (prefix_num
< bin_num
) ? prefix_num
: bin_num
;
2212 for (common
= 0; common
< n
; common
++)
2214 if (strcmp (bin_dirs
[common
], prefix_dirs
[common
]) != 0)
2218 /* If there are no common directories, there can be no relative prefix. */
2221 free_split_directories (prog_dirs
);
2222 free_split_directories (bin_dirs
);
2223 free_split_directories (prefix_dirs
);
2227 /* Build up the pathnames in argv[0]. */
2228 for (i
= 0; i
< prog_num
; i
++)
2229 obstack_grow (&obstack
, prog_dirs
[i
], strlen (prog_dirs
[i
]));
2231 /* Now build up the ..'s. */
2232 for (i
= common
; i
< n
; i
++)
2234 obstack_grow (&obstack
, DIR_UP
, sizeof (DIR_UP
)-1);
2235 obstack_1grow (&obstack
, DIR_SEPARATOR
);
2238 /* Put in directories to move over to prefix. */
2239 for (i
= common
; i
< prefix_num
; i
++)
2240 obstack_grow (&obstack
, prefix_dirs
[i
], strlen (prefix_dirs
[i
]));
2242 free_split_directories (prog_dirs
);
2243 free_split_directories (bin_dirs
);
2244 free_split_directories (prefix_dirs
);
2246 obstack_1grow (&obstack
, '\0');
2247 return obstack_finish (&obstack
);
2251 /* Check whether NAME can be accessed in MODE. This is like access,
2252 except that it never considers directories to be executable. */
2255 access_check (name
, mode
)
2263 if (stat (name
, &st
) < 0
2264 || S_ISDIR (st
.st_mode
))
2268 return access (name
, mode
);
2271 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2272 access to check permissions.
2273 Return 0 if not found, otherwise return its name, allocated with malloc. */
2276 find_a_file (pprefix
, name
, mode
)
2277 struct path_prefix
*pprefix
;
2282 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
2283 struct prefix_list
*pl
;
2284 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
2286 #ifdef DEFAULT_ASSEMBLER
2287 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
2288 return xstrdup (DEFAULT_ASSEMBLER
);
2291 #ifdef DEFAULT_LINKER
2292 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
2293 return xstrdup (DEFAULT_LINKER
);
2297 len
+= strlen (machine_suffix
);
2299 temp
= xmalloc (len
);
2301 /* Determine the filename to execute (special case for absolute paths). */
2303 if (IS_DIR_SEPARATOR (*name
)
2304 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2305 /* Check for disk name on MS-DOS-based systems. */
2306 || (name
[0] && name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2310 if (access (name
, mode
) == 0)
2312 strcpy (temp
, name
);
2317 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2321 /* Some systems have a suffix for executable files.
2322 So try appending that first. */
2323 if (file_suffix
[0] != 0)
2325 strcpy (temp
, pl
->prefix
);
2326 strcat (temp
, machine_suffix
);
2327 strcat (temp
, name
);
2328 strcat (temp
, file_suffix
);
2329 if (access_check (temp
, mode
) == 0)
2331 if (pl
->used_flag_ptr
!= 0)
2332 *pl
->used_flag_ptr
= 1;
2337 /* Now try just the name. */
2338 strcpy (temp
, pl
->prefix
);
2339 strcat (temp
, machine_suffix
);
2340 strcat (temp
, name
);
2341 if (access_check (temp
, mode
) == 0)
2343 if (pl
->used_flag_ptr
!= 0)
2344 *pl
->used_flag_ptr
= 1;
2349 /* Certain prefixes are tried with just the machine type,
2350 not the version. This is used for finding as, ld, etc. */
2351 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2353 /* Some systems have a suffix for executable files.
2354 So try appending that first. */
2355 if (file_suffix
[0] != 0)
2357 strcpy (temp
, pl
->prefix
);
2358 strcat (temp
, just_machine_suffix
);
2359 strcat (temp
, name
);
2360 strcat (temp
, file_suffix
);
2361 if (access_check (temp
, mode
) == 0)
2363 if (pl
->used_flag_ptr
!= 0)
2364 *pl
->used_flag_ptr
= 1;
2369 strcpy (temp
, pl
->prefix
);
2370 strcat (temp
, just_machine_suffix
);
2371 strcat (temp
, name
);
2372 if (access_check (temp
, mode
) == 0)
2374 if (pl
->used_flag_ptr
!= 0)
2375 *pl
->used_flag_ptr
= 1;
2380 /* Certain prefixes can't be used without the machine suffix
2381 when the machine or version is explicitly specified. */
2382 if (! pl
->require_machine_suffix
)
2384 /* Some systems have a suffix for executable files.
2385 So try appending that first. */
2386 if (file_suffix
[0] != 0)
2388 strcpy (temp
, pl
->prefix
);
2389 strcat (temp
, name
);
2390 strcat (temp
, file_suffix
);
2391 if (access_check (temp
, mode
) == 0)
2393 if (pl
->used_flag_ptr
!= 0)
2394 *pl
->used_flag_ptr
= 1;
2399 strcpy (temp
, pl
->prefix
);
2400 strcat (temp
, name
);
2401 if (access_check (temp
, mode
) == 0)
2403 if (pl
->used_flag_ptr
!= 0)
2404 *pl
->used_flag_ptr
= 1;
2414 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2415 at the start of the list, otherwise it goes at the end.
2417 If WARN is nonzero, we will warn if no file is found
2418 through this prefix. WARN should point to an int
2419 which will be set to 1 if this entry is used.
2421 COMPONENT is the value to be passed to update_path.
2423 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2424 the complete value of machine_suffix.
2425 2 means try both machine_suffix and just_machine_suffix. */
2428 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2429 struct path_prefix
*pprefix
;
2431 const char *component
;
2433 int require_machine_suffix
;
2436 struct prefix_list
*pl
, **prev
;
2439 if (! first
&& pprefix
->plist
)
2441 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2446 prev
= &pprefix
->plist
;
2448 /* Keep track of the longest prefix */
2450 prefix
= update_path (prefix
, component
);
2451 len
= strlen (prefix
);
2452 if (len
> pprefix
->max_len
)
2453 pprefix
->max_len
= len
;
2455 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2456 pl
->prefix
= save_string (prefix
, len
);
2457 pl
->require_machine_suffix
= require_machine_suffix
;
2458 pl
->used_flag_ptr
= warn
;
2465 pl
->next
= (struct prefix_list
*) 0;
2469 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2472 unused_prefix_warnings (pprefix
)
2473 struct path_prefix
*pprefix
;
2475 struct prefix_list
*pl
= pprefix
->plist
;
2479 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2481 if (pl
->require_machine_suffix
&& machine_suffix
)
2482 error ("file path prefix `%s%s' never used", pl
->prefix
,
2485 error ("file path prefix `%s' never used", pl
->prefix
);
2487 /* Prevent duplicate warnings. */
2488 *pl
->used_flag_ptr
= 1;
2496 /* Execute the command specified by the arguments on the current line of spec.
2497 When using pipes, this includes several piped-together commands
2498 with `|' between them.
2500 Return 0 if successful, -1 if failed. */
2506 int n_commands
; /* # of command. */
2510 const char *prog
; /* program name. */
2511 const char **argv
; /* vector of args. */
2512 int pid
; /* pid of process for this command. */
2515 struct command
*commands
; /* each command buffer with above info. */
2517 /* Count # of piped commands. */
2518 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2519 if (strcmp (argbuf
[i
], "|") == 0)
2522 /* Get storage for each command. */
2524 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2526 /* Split argbuf into its separate piped processes,
2527 and record info about each one.
2528 Also search for the programs that are to be run. */
2530 commands
[0].prog
= argbuf
[0]; /* first command. */
2531 commands
[0].argv
= &argbuf
[0];
2532 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2535 commands
[0].argv
[0] = string
;
2537 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2538 if (strcmp (argbuf
[i
], "|") == 0)
2539 { /* each command. */
2540 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2541 fatal ("-pipe not supported");
2543 argbuf
[i
] = 0; /* termination of command args. */
2544 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2545 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2546 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2548 commands
[n_commands
].argv
[0] = string
;
2552 argbuf
[argbuf_index
] = 0;
2554 /* If -v, print what we are about to do, and maybe query. */
2558 /* For help listings, put a blank line between sub-processes. */
2559 if (print_help_list
)
2560 fputc ('\n', stderr
);
2562 /* Print each piped command as a separate line. */
2563 for (i
= 0; i
< n_commands
; i
++)
2567 for (j
= commands
[i
].argv
; *j
; j
++)
2568 fprintf (stderr
, " %s", *j
);
2570 /* Print a pipe symbol after all but the last command. */
2571 if (i
+ 1 != n_commands
)
2572 fprintf (stderr
, " |");
2573 fprintf (stderr
, "\n");
2577 notice ("\nGo ahead? (y or n) ");
2581 while (getchar () != '\n')
2584 if (i
!= 'y' && i
!= 'Y')
2589 /* Run each piped subprocess. */
2591 for (i
= 0; i
< n_commands
; i
++)
2593 char *errmsg_fmt
, *errmsg_arg
;
2594 const char *string
= commands
[i
].argv
[0];
2596 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2597 programname
, temp_filename
,
2598 &errmsg_fmt
, &errmsg_arg
,
2599 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2600 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2601 | (string
== commands
[i
].prog
2602 ? PEXECUTE_SEARCH
: 0)
2603 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2605 if (commands
[i
].pid
== -1)
2606 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2608 if (string
!= commands
[i
].prog
)
2609 free ((PTR
) string
);
2614 /* Wait for all the subprocesses to finish.
2615 We don't care what order they finish in;
2616 we know that N_COMMANDS waits will get them all.
2617 Ignore subprocesses that we don't know about,
2618 since they can be spawned by the process that exec'ed us. */
2622 #ifdef HAVE_GETRUSAGE
2624 double ut
= 0.0, st
= 0.0;
2627 for (i
= 0; i
< n_commands
; )
2633 pid
= pwait (commands
[i
].pid
, &status
, 0);
2637 #ifdef HAVE_GETRUSAGE
2640 /* getrusage returns the total resource usage of all children
2641 up to now. Copy the previous values into prus, get the
2642 current statistics, then take the difference. */
2645 getrusage (RUSAGE_CHILDREN
, &rus
);
2646 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2647 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2648 ut
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2650 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2651 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2652 st
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2656 for (j
= 0; j
< n_commands
; j
++)
2657 if (commands
[j
].pid
== pid
)
2662 if (WIFSIGNALED (status
))
2664 fatal ("Internal compiler error: program %s got fatal signal %d",
2665 commands
[j
].prog
, WTERMSIG (status
));
2669 else if (WIFEXITED (status
)
2670 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2672 if (WEXITSTATUS (status
) > greatest_status
)
2673 greatest_status
= WEXITSTATUS (status
);
2677 #ifdef HAVE_GETRUSAGE
2678 if (report_times
&& ut
+ st
!= 0)
2679 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2688 /* Find all the switches given to us
2689 and make a vector describing them.
2690 The elements of the vector are strings, one per switch given.
2691 If a switch uses following arguments, then the `part1' field
2692 is the switch itself and the `args' field
2693 is a null-terminated vector containing the following arguments.
2694 The `live_cond' field is:
2696 1 if the switch is true in a conditional spec,
2697 -1 if false (overridden by a later switch)
2698 -2 if this switch should be ignored (used in %{<S})
2699 The `validated' field is nonzero if any spec has looked at this switch;
2700 if it remains zero at the end of the run, it must be meaningless. */
2703 #define SWITCH_FALSE -1
2704 #define SWITCH_IGNORE -2
2705 #define SWITCH_LIVE 1
2715 static struct switchstr
*switches
;
2717 static int n_switches
;
2722 const char *language
;
2725 /* Also a vector of input files specified. */
2727 static struct infile
*infiles
;
2729 static int n_infiles
;
2731 /* This counts the number of libraries added by lang_specific_driver, so that
2732 we can tell if there were any user supplied any files or libraries. */
2734 static int added_libraries
;
2736 /* And a vector of corresponding output files is made up later. */
2738 static const char **outfiles
;
2740 /* Used to track if none of the -B paths are used. */
2743 /* Used to track if standard path isn't used and -b or -V is specified. */
2744 static int warn_std
;
2746 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2747 static int *warn_std_ptr
= 0;
2750 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2752 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2753 is true if we should look for an executable suffix as well. */
2756 convert_filename (name
, do_exe
)
2766 len
= strlen (name
);
2768 #ifdef HAVE_OBJECT_SUFFIX
2769 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2771 && name
[len
- 2] == '.'
2772 && name
[len
- 1] == 'o')
2774 obstack_grow (&obstack
, name
, len
- 2);
2775 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2776 name
= obstack_finish (&obstack
);
2780 #ifdef HAVE_EXECUTABLE_SUFFIX
2781 /* If there is no filetype, make it the executable suffix (which includes
2782 the "."). But don't get confused if we have just "-o". */
2783 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2786 for (i
= len
- 1; i
>= 0; i
--)
2787 if (IS_DIR_SEPARATOR (name
[i
]))
2790 for (i
++; i
< len
; i
++)
2794 obstack_grow (&obstack
, name
, len
);
2795 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2796 name
= obstack_finish (&obstack
);
2803 /* Display the command line switches accepted by gcc. */
2807 printf ("Usage: %s [options] file...\n", programname
);
2808 printf ("Options:\n");
2810 printf (" -pass-exit-codes Exit with highest error code from a phase\n");
2811 printf (" --help Display this information\n");
2813 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2814 printf (" -dumpspecs Display all of the built in spec strings\n");
2815 printf (" -dumpversion Display the version of the compiler\n");
2816 printf (" -dumpmachine Display the compiler's target processor\n");
2817 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2818 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2819 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2820 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2821 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2822 printf (" -print-multi-lib Display the mapping between command line options and\n");
2823 printf (" multiple library search directories\n");
2824 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2825 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2826 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2827 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2828 printf (" -save-temps Do not delete intermediate files\n");
2829 printf (" -pipe Use pipes rather than intermediate files\n");
2830 printf (" -time Time the execution of each subprocess\n");
2831 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2832 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2833 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2834 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2835 printf (" -V <version> Run gcc version number <version>, if installed\n");
2836 printf (" -v Display the programs invoked by the compiler\n");
2837 printf (" -E Preprocess only; do not compile, assemble or link\n");
2838 printf (" -S Compile only; do not assemble or link\n");
2839 printf (" -c Compile and assemble, but do not link\n");
2840 printf (" -o <file> Place the output into <file>\n");
2841 printf (" -x <language> Specify the language of the following input files\n");
2842 printf (" Permissable languages include: c c++ assembler none\n");
2843 printf (" 'none' means revert to the default behaviour of\n");
2844 printf (" guessing the language based on the file's extension\n");
2846 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2847 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2849 printf ("on to these processes the -W<letter> options must be used.\n");
2851 /* The rest of the options are displayed by invocations of the various
2856 add_preprocessor_option (option
, len
)
2857 const char * option
;
2860 n_preprocessor_options
++;
2862 if (! preprocessor_options
)
2863 preprocessor_options
2864 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2866 preprocessor_options
2867 = (char **) xrealloc (preprocessor_options
,
2868 n_preprocessor_options
* sizeof (char *));
2870 preprocessor_options
[n_preprocessor_options
- 1] =
2871 save_string (option
, len
);
2875 add_assembler_option (option
, len
)
2876 const char * option
;
2879 n_assembler_options
++;
2881 if (! assembler_options
)
2883 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2886 = (char **) xrealloc (assembler_options
,
2887 n_assembler_options
* sizeof (char *));
2889 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2893 add_linker_option (option
, len
)
2894 const char * option
;
2899 if (! linker_options
)
2901 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2904 = (char **) xrealloc (linker_options
,
2905 n_linker_options
* sizeof (char *));
2907 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2910 /* Create the vector `switches' and its contents.
2911 Store its length in `n_switches'. */
2914 process_command (argc
, argv
)
2921 const char *spec_lang
= 0;
2922 int last_language_n_infiles
;
2925 int lang_n_infiles
= 0;
2927 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2931 added_libraries
= 0;
2933 /* Figure compiler version from version string. */
2935 compiler_version
= temp1
= xstrdup (version_string
);
2937 for (; *temp1
; ++temp1
)
2946 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2947 see if we can create it from the pathname specified in argv[0]. */
2950 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2951 if (!gcc_exec_prefix
)
2953 gcc_exec_prefix
= make_relative_prefix (argv
[0], standard_bindir_prefix
,
2954 standard_exec_prefix
);
2955 if (gcc_exec_prefix
)
2956 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix
, NULL_PTR
));
2960 if (gcc_exec_prefix
)
2962 int len
= strlen (gcc_exec_prefix
);
2963 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2964 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
2966 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2967 if (IS_DIR_SEPARATOR (*temp
)
2968 && strncmp (temp
+1, "lib", 3) == 0
2969 && IS_DIR_SEPARATOR (temp
[4])
2970 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2971 len
-= sizeof ("/lib/gcc-lib/") - 1;
2974 set_std_prefix (gcc_exec_prefix
, len
);
2975 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2976 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2979 /* COMPILER_PATH and LIBRARY_PATH have values
2980 that are lists of directory names with colons. */
2982 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2985 const char *startp
, *endp
;
2986 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2988 startp
= endp
= temp
;
2991 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2993 strncpy (nstore
, startp
, endp
-startp
);
2995 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2996 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2998 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2999 nstore
[endp
-startp
+1] = 0;
3002 nstore
[endp
-startp
] = 0;
3003 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
3004 add_prefix (&include_prefixes
,
3005 concat (nstore
, "include", NULL_PTR
),
3009 endp
= startp
= endp
+ 1;
3016 GET_ENV_PATH_LIST (temp
, LIBRARY_PATH_ENV
);
3017 if (temp
&& *cross_compile
== '0')
3019 const char *startp
, *endp
;
3020 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3022 startp
= endp
= temp
;
3025 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3027 strncpy (nstore
, startp
, endp
-startp
);
3029 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3030 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3032 nstore
[endp
-startp
] = DIR_SEPARATOR
;
3033 nstore
[endp
-startp
+1] = 0;
3036 nstore
[endp
-startp
] = 0;
3037 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3041 endp
= startp
= endp
+ 1;
3048 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
3049 GET_ENV_PATH_LIST (temp
, "LPATH");
3050 if (temp
&& *cross_compile
== '0')
3052 const char *startp
, *endp
;
3053 char *nstore
= (char *) alloca (strlen (temp
) + 3);
3055 startp
= endp
= temp
;
3058 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
3060 strncpy (nstore
, startp
, endp
-startp
);
3062 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
3063 else if (!IS_DIR_SEPARATOR (endp
[-1]))
3065 nstore
[endp
-startp
] = DIR_SEPARATOR
;
3066 nstore
[endp
-startp
+1] = 0;
3069 nstore
[endp
-startp
] = 0;
3070 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
3074 endp
= startp
= endp
+ 1;
3081 /* Convert new-style -- options to old-style. */
3082 translate_options (&argc
, &argv
);
3084 /* Do language-specific adjustment/addition of flags. */
3085 lang_specific_driver (&argc
, &argv
, &added_libraries
);
3087 /* Scan argv twice. Here, the first time, just count how many switches
3088 there will be in their vector, and how many input files in theirs.
3089 Here we also parse the switches that cc itself uses (e.g. -v). */
3091 for (i
= 1; i
< argc
; i
++)
3093 if (! strcmp (argv
[i
], "-dumpspecs"))
3095 struct spec_list
*sl
;
3097 for (sl
= specs
; sl
; sl
= sl
->next
)
3098 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
3099 if (link_command_spec
)
3100 printf ("*link_command:\n%s\n\n", link_command_spec
);
3103 else if (! strcmp (argv
[i
], "-dumpversion"))
3105 printf ("%s\n", spec_version
);
3108 else if (! strcmp (argv
[i
], "-dumpmachine"))
3110 printf ("%s\n", spec_machine
);
3113 else if (strcmp (argv
[i
], "-fhelp") == 0)
3115 /* translate_options () has turned --help into -fhelp. */
3116 print_help_list
= 1;
3118 /* We will be passing a dummy file on to the sub-processes. */
3122 add_preprocessor_option ("--help", 6);
3123 add_assembler_option ("--help", 6);
3124 add_linker_option ("--help", 6);
3126 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3128 pass_exit_codes
= 1;
3131 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3132 print_search_dirs
= 1;
3133 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3134 print_file_name
= "libgcc.a";
3135 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3136 print_file_name
= argv
[i
] + 17;
3137 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3138 print_prog_name
= argv
[i
] + 17;
3139 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3140 print_multi_lib
= 1;
3141 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3142 print_multi_directory
= 1;
3143 else if (! strncmp (argv
[i
], "-Wa,", 4))
3146 /* Pass the rest of this option to the assembler. */
3148 /* Split the argument at commas. */
3150 for (j
= 4; argv
[i
][j
]; j
++)
3151 if (argv
[i
][j
] == ',')
3153 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3157 /* Record the part after the last comma. */
3158 add_assembler_option (argv
[i
] + prev
, j
- prev
);
3160 else if (! strncmp (argv
[i
], "-Wp,", 4))
3163 /* Pass the rest of this option to the preprocessor. */
3165 /* Split the argument at commas. */
3167 for (j
= 4; argv
[i
][j
]; j
++)
3168 if (argv
[i
][j
] == ',')
3170 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3174 /* Record the part after the last comma. */
3175 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
3177 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3178 /* The +e options to the C++ front-end. */
3180 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3183 /* Split the argument at commas. */
3184 for (j
= 3; argv
[i
][j
]; j
++)
3185 n_infiles
+= (argv
[i
][j
] == ',');
3187 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3190 fatal ("argument to `-Xlinker' is missing");
3195 else if (strncmp (argv
[i
], "-l", 2) == 0)
3197 else if (strcmp (argv
[i
], "-save-temps") == 0)
3199 save_temps_flag
= 1;
3202 else if (strcmp (argv
[i
], "-specs") == 0)
3204 struct user_specs
*user
= (struct user_specs
*)
3205 xmalloc (sizeof (struct user_specs
));
3207 fatal ("argument to `-specs' is missing");
3209 user
->next
= (struct user_specs
*)0;
3210 user
->filename
= argv
[i
];
3211 if (user_specs_tail
)
3212 user_specs_tail
->next
= user
;
3214 user_specs_head
= user
;
3215 user_specs_tail
= user
;
3217 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3219 struct user_specs
*user
= (struct user_specs
*)
3220 xmalloc (sizeof (struct user_specs
));
3221 if (strlen (argv
[i
]) == 7)
3222 fatal ("argument to `-specs=' is missing");
3224 user
->next
= (struct user_specs
*)0;
3225 user
->filename
= argv
[i
]+7;
3226 if (user_specs_tail
)
3227 user_specs_tail
->next
= user
;
3229 user_specs_head
= user
;
3230 user_specs_tail
= user
;
3232 else if (strcmp (argv
[i
], "-time") == 0)
3234 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3236 register const char *p
= &argv
[i
][1];
3237 register int c
= *p
;
3243 if (p
[1] == 0 && i
+ 1 == argc
)
3244 fatal ("argument to `-b' is missing");
3246 spec_machine
= argv
[++i
];
3248 spec_machine
= p
+ 1;
3250 warn_std_ptr
= &warn_std
;
3256 if (p
[1] == 0 && i
+ 1 == argc
)
3257 fatal ("argument to `-B' is missing");
3262 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
3263 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
3265 add_prefix (&include_prefixes
, concat (value
, "include",
3267 NULL_PTR
, 1, 0, NULL_PTR
);
3269 /* As a kludge, if the arg is "[foo/]stageN/", just add
3270 "[foo/]include" to the include prefix. */
3272 int len
= strlen (value
);
3275 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
3276 && strncmp (value
+ len
- 7, "stage", 5) == 0
3277 && ISDIGIT (value
[len
- 2])
3278 && (IS_DIR_SEPARATOR (value
[len
- 1])))
3281 add_prefix (&include_prefixes
, "include", NULL_PTR
,
3285 char *string
= xmalloc (len
+ 1);
3286 strncpy (string
, value
, len
-7);
3287 strcpy (string
+len
-7, "include");
3288 add_prefix (&include_prefixes
, string
, NULL_PTR
,
3297 case 'v': /* Print our subcommands and print versions. */
3299 /* If they do anything other than exactly `-v', don't set
3300 verbose_flag; rather, continue on to give the error. */
3308 if (p
[1] == 0 && i
+ 1 == argc
)
3309 fatal ("argument to `-V' is missing");
3311 spec_version
= argv
[++i
];
3313 spec_version
= p
+ 1;
3314 compiler_version
= spec_version
;
3315 warn_std_ptr
= &warn_std
;
3317 /* Validate the version number. Use the same checks
3318 done when inserting it into a spec.
3320 The format of the version string is
3321 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3323 const char *v
= compiler_version
;
3325 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3326 while (! ISDIGIT (*v
))
3329 if (v
> compiler_version
&& v
[-1] != '-')
3330 fatal ("invalid version number format");
3332 /* Set V after the first period. */
3333 while (ISDIGIT (*v
))
3337 fatal ("invalid version number format");
3340 while (ISDIGIT (*v
))
3343 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3344 fatal ("invalid version number format");
3360 #if defined(HAVE_EXECUTABLE_SUFFIX)
3365 /* Forward scan, just in case -S or -c is specified
3372 if (argv
[j
][0] == '-')
3374 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3380 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3381 j
+= skip
- (argv
[j
][2] != 0);
3382 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3389 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3391 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3393 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3401 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3402 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3403 else if (WORD_SWITCH_TAKES_ARG (p
))
3404 i
+= WORD_SWITCH_TAKES_ARG (p
);
3414 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3415 fatal ("cannot specify -o with -c or -S and multiple compilations");
3417 /* Set up the search paths before we go looking for config files. */
3419 /* These come before the md prefixes so that we will find gcc's subcommands
3420 (such as cpp) rather than those of the host system. */
3421 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3422 as well as trying the machine and the version. */
3424 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3425 0, 1, warn_std_ptr
);
3426 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3427 0, 2, warn_std_ptr
);
3428 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3429 0, 2, warn_std_ptr
);
3432 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3433 0, 1, warn_std_ptr
);
3434 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3435 0, 1, warn_std_ptr
);
3437 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3438 dir_separator_str
, NULL_PTR
);
3440 /* If tooldir is relative, base it on exec_prefixes. A relative
3441 tooldir lets us move the installed tree as a unit.
3443 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3444 directories, so that we can search both the user specified directory
3445 and the standard place. */
3447 if (!IS_DIR_SEPARATOR (*tooldir_prefix
))
3449 if (gcc_exec_prefix
)
3451 char *gcc_exec_tooldir_prefix
3452 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3453 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3455 add_prefix (&exec_prefixes
,
3456 concat (gcc_exec_tooldir_prefix
, "bin",
3457 dir_separator_str
, NULL_PTR
),
3458 NULL_PTR
, 0, 0, NULL_PTR
);
3459 add_prefix (&startfile_prefixes
,
3460 concat (gcc_exec_tooldir_prefix
, "lib",
3461 dir_separator_str
, NULL_PTR
),
3462 NULL_PTR
, 0, 0, NULL_PTR
);
3465 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3466 dir_separator_str
, spec_version
,
3467 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3470 add_prefix (&exec_prefixes
,
3471 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3472 "BINUTILS", 0, 0, NULL_PTR
);
3473 add_prefix (&startfile_prefixes
,
3474 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3475 "BINUTILS", 0, 0, NULL_PTR
);
3477 /* More prefixes are enabled in main, after we read the specs file
3478 and determine whether this is cross-compilation or not. */
3481 /* Then create the space for the vectors and scan again. */
3483 switches
= ((struct switchstr
*)
3484 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3485 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3488 last_language_n_infiles
= -1;
3490 /* This, time, copy the text of each switch and store a pointer
3491 to the copy in the vector of switches.
3492 Store all the infiles in their vector. */
3494 for (i
= 1; i
< argc
; i
++)
3496 /* Just skip the switches that were handled by the preceding loop. */
3497 if (! strncmp (argv
[i
], "-Wa,", 4))
3499 else if (! strncmp (argv
[i
], "-Wp,", 4))
3501 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3503 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3505 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3507 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3509 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3511 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3513 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3515 else if (strcmp (argv
[i
], "-fhelp") == 0)
3519 /* Create a dummy input file, so that we can pass --help on to
3520 the various sub-processes. */
3521 infiles
[n_infiles
].language
= "c";
3522 infiles
[n_infiles
++].name
= "help-dummy";
3524 /* Preserve the --help switch so that it can be caught by the
3526 switches
[n_switches
].part1
= "--help";
3527 switches
[n_switches
].args
= 0;
3528 switches
[n_switches
].live_cond
= SWITCH_OK
;
3529 switches
[n_switches
].validated
= 0;
3534 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3536 /* Compensate for the +e options to the C++ front-end;
3537 they're there simply for cfront call-compatibility. We do
3538 some magic in default_compilers to pass them down properly.
3539 Note we deliberately start at the `+' here, to avoid passing
3540 -e0 or -e1 down into the linker. */
3541 switches
[n_switches
].part1
= &argv
[i
][0];
3542 switches
[n_switches
].args
= 0;
3543 switches
[n_switches
].live_cond
= SWITCH_OK
;
3544 switches
[n_switches
].validated
= 0;
3547 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3550 /* Split the argument at commas. */
3552 for (j
= 4; argv
[i
][j
]; j
++)
3553 if (argv
[i
][j
] == ',')
3555 infiles
[n_infiles
].language
= "*";
3556 infiles
[n_infiles
++].name
3557 = save_string (argv
[i
] + prev
, j
- prev
);
3560 /* Record the part after the last comma. */
3561 infiles
[n_infiles
].language
= "*";
3562 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3564 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3566 infiles
[n_infiles
].language
= "*";
3567 infiles
[n_infiles
++].name
= argv
[++i
];
3569 else if (strncmp (argv
[i
], "-l", 2) == 0)
3571 infiles
[n_infiles
].language
= "*";
3572 infiles
[n_infiles
++].name
= argv
[i
];
3574 else if (strcmp (argv
[i
], "-specs") == 0)
3576 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3578 else if (strcmp (argv
[i
], "-time") == 0)
3580 else if ((save_temps_flag
|| report_times
)
3581 && strcmp (argv
[i
], "-pipe") == 0)
3583 /* -save-temps overrides -pipe, so that temp files are produced */
3584 if (save_temps_flag
)
3585 error ("Warning: -pipe ignored since -save-temps specified");
3586 /* -time overrides -pipe because we can't get correct stats when
3587 multiple children are running at once. */
3588 else if (report_times
)
3589 error ("Warning: -pipe ignored since -time specified");
3591 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3593 const char *p
= &argv
[i
][1];
3598 if (p
[1] == 0 && i
+ 1 == argc
)
3599 fatal ("argument to `-x' is missing");
3601 spec_lang
= argv
[++i
];
3604 if (! strcmp (spec_lang
, "none"))
3605 /* Suppress the warning if -xnone comes after the last input
3606 file, because alternate command interfaces like g++ might
3607 find it useful to place -xnone after each input file. */
3610 last_language_n_infiles
= n_infiles
;
3613 switches
[n_switches
].part1
= p
;
3614 /* Deal with option arguments in separate argv elements. */
3615 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3616 || WORD_SWITCH_TAKES_ARG (p
))
3619 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3623 /* Count only the option arguments in separate argv elements. */
3624 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3626 if (i
+ n_args
>= argc
)
3627 fatal ("argument to `-%s' is missing", p
);
3628 switches
[n_switches
].args
3629 = (const char **) xmalloc ((n_args
+ 1) * sizeof(const char *));
3631 switches
[n_switches
].args
[j
++] = argv
[++i
];
3632 /* Null-terminate the vector. */
3633 switches
[n_switches
].args
[j
] = 0;
3635 else if (index (switches_need_spaces
, c
))
3637 /* On some systems, ld cannot handle some options without
3638 a space. So split the option from its argument. */
3639 char *part1
= (char *) xmalloc (2);
3644 switches
[n_switches
].part1
= part1
;
3645 switches
[n_switches
].args
3646 = (const char **) xmalloc (2 * sizeof (const char *));
3647 switches
[n_switches
].args
[0] = tmp
= xmalloc (strlen (p
));
3648 strcpy (tmp
, &p
[1]);
3649 switches
[n_switches
].args
[1] = 0;
3652 switches
[n_switches
].args
= 0;
3654 switches
[n_switches
].live_cond
= SWITCH_OK
;
3655 switches
[n_switches
].validated
= 0;
3656 /* This is always valid, since gcc.c itself understands it. */
3657 if (!strcmp (p
, "save-temps"))
3658 switches
[n_switches
].validated
= 1;
3661 char ch
= switches
[n_switches
].part1
[0];
3662 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3663 switches
[n_switches
].validated
= 1;
3669 #ifdef HAVE_OBJECT_SUFFIX
3670 argv
[i
] = convert_filename (argv
[i
], 0);
3673 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3675 perror_with_name (argv
[i
]);
3680 infiles
[n_infiles
].language
= spec_lang
;
3681 infiles
[n_infiles
++].name
= argv
[i
];
3686 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3687 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3689 switches
[n_switches
].part1
= 0;
3690 infiles
[n_infiles
].name
= 0;
3693 /* Process a spec string, accumulating and running commands. */
3695 /* These variables describe the input file name.
3696 input_file_number is the index on outfiles of this file,
3697 so that the output file name can be stored for later use by %o.
3698 input_basename is the start of the part of the input file
3699 sans all directory names, and basename_length is the number
3700 of characters starting there excluding the suffix .c or whatever. */
3702 const char *input_filename
;
3703 static int input_file_number
;
3704 size_t input_filename_length
;
3705 static int basename_length
;
3706 static const char *input_basename
;
3707 static const char *input_suffix
;
3709 /* These are variables used within do_spec and do_spec_1. */
3711 /* Nonzero if an arg has been started and not yet terminated
3712 (with space, tab or newline). */
3713 static int arg_going
;
3715 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3716 is a temporary file name. */
3717 static int delete_this_arg
;
3719 /* Nonzero means %w has been seen; the next arg to be terminated
3720 is the output file name of this compilation. */
3721 static int this_is_output_file
;
3723 /* Nonzero means %s has been seen; the next arg to be terminated
3724 is the name of a library file and we should try the standard
3725 search dirs for it. */
3726 static int this_is_library_file
;
3728 /* Nonzero means that the input of this command is coming from a pipe. */
3729 static int input_from_pipe
;
3731 /* Process the spec SPEC and run the commands specified therein.
3732 Returns 0 if the spec is successfully processed; -1 if failed. */
3742 delete_this_arg
= 0;
3743 this_is_output_file
= 0;
3744 this_is_library_file
= 0;
3745 input_from_pipe
= 0;
3747 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3749 /* Force out any unfinished command.
3750 If -pipe, this forces out the last command if it ended in `|'. */
3753 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3756 if (argbuf_index
> 0)
3763 /* Process the sub-spec SPEC as a portion of a larger spec.
3764 This is like processing a whole spec except that we do
3765 not initialize at the beginning and we do not supply a
3766 newline by default at the end.
3767 INSWITCH nonzero means don't process %-sequences in SPEC;
3768 in this case, % is treated as an ordinary character.
3769 This is used while substituting switches.
3770 INSWITCH nonzero also causes SPC not to terminate an argument.
3772 Value is zero unless a line was finished
3773 and the command on that line reported an error. */
3776 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3779 const char *soft_matched_part
;
3781 register const char *p
= spec
;
3788 /* If substituting a switch, treat all chars like letters.
3789 Otherwise, NL, SPC, TAB and % are special. */
3790 switch (inswitch
? 'a' : c
)
3793 /* End of line: finish any pending argument,
3794 then run the pending command if one has been started. */
3797 obstack_1grow (&obstack
, 0);
3798 string
= obstack_finish (&obstack
);
3799 if (this_is_library_file
)
3800 string
= find_file (string
);
3801 store_arg (string
, delete_this_arg
, this_is_output_file
);
3802 if (this_is_output_file
)
3803 outfiles
[input_file_number
] = string
;
3807 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3809 for (i
= 0; i
< n_switches
; i
++)
3810 if (!strcmp (switches
[i
].part1
, "pipe"))
3813 /* A `|' before the newline means use a pipe here,
3814 but only if -pipe was specified.
3815 Otherwise, execute now and don't pass the `|' as an arg. */
3818 input_from_pipe
= 1;
3819 switches
[i
].validated
= 1;
3826 if (argbuf_index
> 0)
3832 /* Reinitialize for a new command, and for a new argument. */
3835 delete_this_arg
= 0;
3836 this_is_output_file
= 0;
3837 this_is_library_file
= 0;
3838 input_from_pipe
= 0;
3842 /* End any pending argument. */
3845 obstack_1grow (&obstack
, 0);
3846 string
= obstack_finish (&obstack
);
3847 if (this_is_library_file
)
3848 string
= find_file (string
);
3849 store_arg (string
, delete_this_arg
, this_is_output_file
);
3850 if (this_is_output_file
)
3851 outfiles
[input_file_number
] = string
;
3855 obstack_1grow (&obstack
, c
);
3861 /* Space or tab ends an argument if one is pending. */
3864 obstack_1grow (&obstack
, 0);
3865 string
= obstack_finish (&obstack
);
3866 if (this_is_library_file
)
3867 string
= find_file (string
);
3868 store_arg (string
, delete_this_arg
, this_is_output_file
);
3869 if (this_is_output_file
)
3870 outfiles
[input_file_number
] = string
;
3872 /* Reinitialize for a new argument. */
3874 delete_this_arg
= 0;
3875 this_is_output_file
= 0;
3876 this_is_library_file
= 0;
3883 fatal ("Invalid specification! Bug in cc.");
3886 obstack_grow (&obstack
, input_basename
, basename_length
);
3891 delete_this_arg
= 2;
3894 /* Dump out the directories specified with LIBRARY_PATH,
3895 followed by the absolute directories
3896 that we search for startfiles. */
3899 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3900 size_t bufsize
= 100;
3901 char *buffer
= (char *) xmalloc (bufsize
);
3904 for (; pl
; pl
= pl
->next
)
3906 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3907 /* Used on systems which record the specified -L dirs
3908 and use them to search for dynamic linking. */
3909 /* Relative directories always come from -B,
3910 and it is better not to use them for searching
3911 at run time. In particular, stage1 loses. */
3912 if (!IS_DIR_SEPARATOR (pl
->prefix
[0]))
3915 /* Try subdirectory if there is one. */
3916 if (multilib_dir
!= NULL
)
3920 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3922 bufsize
= (strlen (pl
->prefix
)
3923 + strlen (machine_suffix
)) * 2 + 1;
3924 buffer
= (char *) xrealloc (buffer
, bufsize
);
3925 strcpy (buffer
, pl
->prefix
);
3926 strcat (buffer
, machine_suffix
);
3927 if (is_directory (buffer
, multilib_dir
, 1))
3929 do_spec_1 ("-L", 0, NULL_PTR
);
3930 #ifdef SPACE_AFTER_L_OPTION
3931 do_spec_1 (" ", 0, NULL_PTR
);
3933 do_spec_1 (buffer
, 1, NULL_PTR
);
3934 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3935 /* Make this a separate argument. */
3936 do_spec_1 (" ", 0, NULL_PTR
);
3939 if (!pl
->require_machine_suffix
)
3941 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3943 do_spec_1 ("-L", 0, NULL_PTR
);
3944 #ifdef SPACE_AFTER_L_OPTION
3945 do_spec_1 (" ", 0, NULL_PTR
);
3947 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3948 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3949 /* Make this a separate argument. */
3950 do_spec_1 (" ", 0, NULL_PTR
);
3956 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3958 do_spec_1 ("-L", 0, NULL_PTR
);
3959 #ifdef SPACE_AFTER_L_OPTION
3960 do_spec_1 (" ", 0, NULL_PTR
);
3962 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3963 /* Remove slash from machine_suffix. */
3964 if (strlen (machine_suffix
) >= bufsize
)
3965 bufsize
= strlen (machine_suffix
) * 2 + 1;
3966 buffer
= (char *) xrealloc (buffer
, bufsize
);
3967 strcpy (buffer
, machine_suffix
);
3968 idx
= strlen (buffer
);
3969 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3970 buffer
[idx
- 1] = 0;
3971 do_spec_1 (buffer
, 1, NULL_PTR
);
3972 /* Make this a separate argument. */
3973 do_spec_1 (" ", 0, NULL_PTR
);
3976 if (!pl
->require_machine_suffix
)
3978 if (is_directory (pl
->prefix
, "", 1))
3980 do_spec_1 ("-L", 0, NULL_PTR
);
3981 #ifdef SPACE_AFTER_L_OPTION
3982 do_spec_1 (" ", 0, NULL_PTR
);
3984 /* Remove slash from pl->prefix. */
3985 if (strlen (pl
->prefix
) >= bufsize
)
3986 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3987 buffer
= (char *) xrealloc (buffer
, bufsize
);
3988 strcpy (buffer
, pl
->prefix
);
3989 idx
= strlen (buffer
);
3990 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3991 buffer
[idx
- 1] = 0;
3992 do_spec_1 (buffer
, 1, NULL_PTR
);
3993 /* Make this a separate argument. */
3994 do_spec_1 (" ", 0, NULL_PTR
);
4003 /* %efoo means report an error with `foo' as error message
4004 and don't execute any more commands for this file. */
4008 while (*p
!= 0 && *p
!= '\n') p
++;
4009 buf
= (char *) alloca (p
- q
+ 1);
4010 strncpy (buf
, q
, p
- q
);
4020 if (save_temps_flag
)
4022 obstack_grow (&obstack
, input_basename
, basename_length
);
4023 delete_this_arg
= 0;
4027 #ifdef MKTEMP_EACH_FILE
4028 /* ??? This has a problem: the total number of
4029 values mktemp can return is limited.
4030 That matters for the names of object files.
4031 In 2.4, do something about that. */
4032 struct temp_name
*t
;
4034 const char *suffix
= p
;
4035 char *saved_suffix
= NULL
;
4037 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
4039 suffix_length
= p
- suffix
;
4040 if (p
[0] == '%' && p
[1] == 'O')
4043 /* We don't support extra suffix characters after %O. */
4044 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
4046 if (suffix_length
== 0)
4047 suffix
= OBJECT_SUFFIX
;
4051 = (char *) xmalloc (suffix_length
4052 + strlen (OBJECT_SUFFIX
));
4053 strncpy (saved_suffix
, suffix
, suffix_length
);
4054 strcpy (saved_suffix
+ suffix_length
,
4057 suffix_length
+= strlen (OBJECT_SUFFIX
);
4060 /* See if we already have an association of %g/%u/%U and
4062 for (t
= temp_names
; t
; t
= t
->next
)
4063 if (t
->length
== suffix_length
4064 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
4065 && t
->unique
== (c
!= 'g'))
4068 /* Make a new association if needed. %u requires one. */
4069 if (t
== 0 || c
== 'u')
4073 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
4074 t
->next
= temp_names
;
4077 t
->length
= suffix_length
;
4078 t
->suffix
= save_string (suffix
, suffix_length
);
4079 t
->unique
= (c
!= 'g');
4080 temp_filename
= make_temp_file (t
->suffix
);
4081 temp_filename_length
= strlen (temp_filename
);
4082 t
->filename
= temp_filename
;
4083 t
->filename_length
= temp_filename_length
;
4087 free (saved_suffix
);
4089 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
4090 delete_this_arg
= 1;
4092 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
4093 if (c
== 'u' || c
== 'U')
4099 sprintf (buff
, "%d", unique
);
4100 obstack_grow (&obstack
, buff
, strlen (buff
));
4103 delete_this_arg
= 1;
4109 obstack_grow (&obstack
, input_filename
, input_filename_length
);
4115 struct prefix_list
*pl
= include_prefixes
.plist
;
4117 if (gcc_exec_prefix
)
4119 do_spec_1 ("-iprefix", 1, NULL_PTR
);
4120 /* Make this a separate argument. */
4121 do_spec_1 (" ", 0, NULL_PTR
);
4122 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
4123 do_spec_1 (" ", 0, NULL_PTR
);
4126 for (; pl
; pl
= pl
->next
)
4128 do_spec_1 ("-isystem", 1, NULL_PTR
);
4129 /* Make this a separate argument. */
4130 do_spec_1 (" ", 0, NULL_PTR
);
4131 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
4132 do_spec_1 (" ", 0, NULL_PTR
);
4139 int max
= n_infiles
;
4140 max
+= lang_specific_extra_outfiles
;
4142 for (i
= 0; i
< max
; i
++)
4144 store_arg (outfiles
[i
], 0, 0);
4149 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
4154 this_is_library_file
= 1;
4158 this_is_output_file
= 1;
4163 int cur_index
= argbuf_index
;
4164 /* Handle the {...} following the %W. */
4167 p
= handle_braces (p
+ 1);
4170 /* If any args were output, mark the last one for deletion
4172 if (argbuf_index
!= cur_index
)
4173 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
4177 /* %x{OPTION} records OPTION for %X to output. */
4183 /* Skip past the option value and make a copy. */
4188 string
= save_string (p1
+ 1, p
- p1
- 2);
4190 /* See if we already recorded this option. */
4191 for (i
= 0; i
< n_linker_options
; i
++)
4192 if (! strcmp (string
, linker_options
[i
]))
4198 /* This option is new; add it. */
4199 add_linker_option (string
, strlen (string
));
4203 /* Dump out the options accumulated previously using %x. */
4205 for (i
= 0; i
< n_linker_options
; i
++)
4207 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
4208 /* Make each accumulated option a separate argument. */
4209 do_spec_1 (" ", 0, NULL_PTR
);
4213 /* Dump out the options accumulated previously using -Wa,. */
4215 for (i
= 0; i
< n_assembler_options
; i
++)
4217 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
4218 /* Make each accumulated option a separate argument. */
4219 do_spec_1 (" ", 0, NULL_PTR
);
4223 /* Dump out the options accumulated previously using -Wp,. */
4225 for (i
= 0; i
< n_preprocessor_options
; i
++)
4227 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
4228 /* Make each accumulated option a separate argument. */
4229 do_spec_1 (" ", 0, NULL_PTR
);
4233 /* Here are digits and numbers that just process
4234 a certain constant string as a spec. */
4237 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
4243 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
4249 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
4255 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
4261 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
4267 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
4273 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
4279 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
4285 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
4291 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
4298 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
4302 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4306 if (! strncmp (y
, "-D", 2))
4307 /* Copy the whole option. */
4308 while (*y
&& *y
!= ' ' && *y
!= '\t')
4310 else if (*y
== ' ' || *y
== '\t')
4311 /* Copy whitespace to the result. */
4313 /* Don't copy other options. */
4320 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4328 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4332 /* Copy all of CPP_PREDEFINES into BUF,
4333 but force them all into the reserved name space if they
4334 aren't already there. The reserved name space is all
4335 identifiers beginning with two underscores or with one
4336 underscore and a capital letter. We do the forcing by
4337 adding up to two underscores to the beginning and end
4338 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4343 if (! strncmp (y
, "-D", 2))
4352 && ! ISUPPER ((unsigned char)*(y
+1))))
4354 /* Stick __ at front of macro name. */
4358 /* Arrange to stick __ at the end as well. */
4362 /* Copy the macro name. */
4363 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4376 /* Copy the value given, if any. */
4377 while (*y
&& *y
!= ' ' && *y
!= '\t')
4380 else if (*y
== ' ' || *y
== '\t')
4381 /* Copy whitespace to the result. */
4383 /* Don't copy -A options */
4389 /* Copy all of CPP_PREDEFINES into BUF,
4390 but put __ after every -D. */
4394 if (! strncmp (y
, "-D", 2))
4400 && ! ISUPPER ((unsigned char)*(y
+1))))
4402 /* Stick -D__ at front of macro name. */
4409 /* Copy the macro name. */
4410 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4413 /* Copy the value given, if any. */
4414 while (*y
&& *y
!= ' ' && *y
!= '\t')
4419 /* Do not copy this macro - we have just done it before */
4420 while (*y
&& *y
!= ' ' && *y
!= '\t')
4424 else if (*y
== ' ' || *y
== '\t')
4425 /* Copy whitespace to the result. */
4427 /* Don't copy -A options. */
4433 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4437 if (! strncmp (y
, "-A", 2))
4438 /* Copy the whole option. */
4439 while (*y
&& *y
!= ' ' && *y
!= '\t')
4441 else if (*y
== ' ' || *y
== '\t')
4442 /* Copy whitespace to the result. */
4444 /* Don't copy other options. */
4451 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4458 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4463 /* Here we define characters other than letters and digits. */
4466 p
= handle_braces (p
);
4472 obstack_1grow (&obstack
, '%');
4476 if (soft_matched_part
)
4478 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4479 do_spec_1 (" ", 0, NULL_PTR
);
4482 /* Catch the case where a spec string contains something like
4483 '%{foo:%*}'. ie there is no * in the pattern on the left
4484 hand side of the :. */
4485 error ("Spec failure: '%%*' has not been initialised by pattern match");
4488 /* Process a string found as the value of a spec given by name.
4489 This feature allows individual machine descriptions
4490 to add and use their own specs.
4491 %[...] modifies -D options the way %P does;
4492 %(...) uses the spec unmodified. */
4494 error ("Warning: use of obsolete %%[ operator in specs");
4497 const char *name
= p
;
4498 struct spec_list
*sl
;
4501 /* The string after the S/P is the name of a spec that is to be
4503 while (*p
&& *p
!= ')' && *p
!= ']')
4506 /* See if it's in the list. */
4507 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4508 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4510 name
= *(sl
->ptr_spec
);
4512 notice ("Processing spec %c%s%c, which is '%s'\n",
4513 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4522 value
= do_spec_1 (name
, 0, NULL_PTR
);
4528 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4530 const char *y
= name
;
4533 /* Copy all of NAME into BUF, but put __ after
4534 every -D and at the end of each arg. */
4537 if (! strncmp (y
, "-D", 2))
4547 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4548 || *y
== '}' || *y
== 0))
4561 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4567 /* Discard the closing paren or bracket. */
4575 int c1
= *p
++; /* Select first or second version number. */
4576 const char *v
= compiler_version
;
4578 static const char zeroc
= '0';
4580 /* The format of the version string is
4581 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4583 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4584 while (! ISDIGIT (*v
))
4586 if (v
> compiler_version
&& v
[-1] != '-')
4589 /* If desired, advance to second version number. */
4592 /* Set V after the first period. */
4593 while (ISDIGIT (*v
))
4600 /* If desired, advance to third version number.
4601 But don't complain if it's not present */
4604 /* Set V after the second period. */
4605 while (ISDIGIT (*v
))
4607 if ((*v
!= 0) && (*v
!= ' ') && (*v
!= '.') && (*v
!= '-'))
4613 /* Set Q at the next period or at the end. */
4615 while (ISDIGIT (*q
))
4617 if (*q
!= 0 && q
> v
&& *q
!= ' ' && *q
!= '.' && *q
!= '-')
4621 /* Put that part into the command. */
4622 obstack_grow (&obstack
, v
, q
- v
);
4624 /* Default to "0" */
4625 obstack_grow (&obstack
, &zeroc
, 1);
4631 if (input_from_pipe
)
4632 do_spec_1 ("-", 0, NULL_PTR
);
4636 error ("Spec failure: Unrecognised spec option '%c'", c
);
4642 /* Backslash: treat next character as ordinary. */
4647 /* Ordinary character: put it into the current argument. */
4648 obstack_1grow (&obstack
, c
);
4652 return 0; /* End of string */
4655 /* Return 0 if we call do_spec_1 and that returns -1. */
4659 register const char *p
;
4661 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4665 int include_blanks
= 1;
4666 int elide_switch
= 0;
4670 /* A '^' after the open-brace means to not give blanks before args. */
4677 /* A `|' after the open-brace means,
4678 if the test fails, output a single minus sign rather than nothing.
4679 This is used in %{|!pipe:...}. */
4686 /* A `<' after the open-brace means that the switch should be
4687 removed from the command-line. */
4693 negate
= suffix
= 0;
4696 /* A `!' after the open-brace negates the condition:
4697 succeed if the specified switch is not present. */
4701 /* A `.' after the open-brace means test against the current suffix. */
4710 if (elide_switch
&& (negate
|| pipe_p
|| suffix
))
4712 /* It doesn't make sense to mix elision with other flags. We
4713 could fatal() here, but the standard seems to be to abort. */
4718 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4720 if (*p
== '|' && pipe_p
)
4727 register int count
= 1;
4728 register const char *q
= p
;
4730 while (*q
++ != ':') continue;
4746 body
= p
, endbody
= p
+1;
4751 int found
= (input_suffix
!= 0
4752 && (long) strlen (input_suffix
) == (long)(p
- filter
)
4753 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4759 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4762 else if (p
[-1] == '*' && p
[0] == '}')
4764 /* Substitute all matching switches as separate args. */
4767 for (i
= 0; i
< n_switches
; i
++)
4768 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4769 && check_live_switch (i
, p
- filter
))
4770 give_switch (i
, 0, include_blanks
);
4774 /* Test for presence of the specified switch. */
4778 /* If name specified ends in *, as in {x*:...},
4779 check for %* and handle that case. */
4780 if (p
[-1] == '*' && !negate
)
4783 const char *r
= body
;
4785 /* First see whether we have %*. */
4789 if (*r
== '%' && r
[1] == '*')
4793 /* If we do, handle that case. */
4796 /* Substitute all matching switches as separate args.
4797 But do this by substituting for %*
4798 in the text that follows the colon. */
4800 unsigned hard_match_len
= p
- filter
- 1;
4801 char *string
= save_string (body
, endbody
- body
- 1);
4803 for (i
= 0; i
< n_switches
; i
++)
4804 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4805 && check_live_switch (i
, -1))
4807 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4808 /* Pass any arguments this switch has. */
4809 give_switch (i
, 1, 1);
4812 /* We didn't match. Try again. */
4819 /* If name specified ends in *, as in {x*:...},
4820 check for presence of any switch name starting with x. */
4823 for (i
= 0; i
< n_switches
; i
++)
4825 unsigned hard_match_len
= p
- filter
- 1;
4827 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4828 && check_live_switch (i
, hard_match_len
))
4835 /* Otherwise, check for presence of exact name specified. */
4838 for (i
= 0; i
< n_switches
; i
++)
4840 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4841 && switches
[i
].part1
[p
- filter
] == 0
4842 && check_live_switch (i
, -1))
4850 /* If it is as desired (present for %{s...}, absent for %{!s...})
4851 then substitute either the switch or the specified
4852 conditional text. */
4853 if (present
!= negate
)
4857 switches
[i
].live_cond
= SWITCH_IGNORE
;
4858 switches
[i
].validated
= 1;
4862 give_switch (i
, 0, include_blanks
);
4866 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4873 /* Here if a %{|...} conditional fails: output a minus sign,
4874 which means "standard output" or "standard input". */
4875 do_spec_1 ("-", 0, NULL_PTR
);
4880 /* We didn't match; try again. */
4887 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4888 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4889 spec, or -1 if either exact match or %* is used.
4891 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4892 whose value does not begin with "no-" is obsoleted by the same value
4893 with the "no-", similarly for a switch with the "no-" prefix. */
4896 check_live_switch (switchnum
, prefix_length
)
4900 const char *name
= switches
[switchnum
].part1
;
4903 /* In the common case of {<at-most-one-letter>*}, a negating
4904 switch would always match, so ignore that case. We will just
4905 send the conflicting switches to the compiler phase. */
4906 if (prefix_length
>= 0 && prefix_length
<= 1)
4909 /* If we already processed this switch and determined if it was
4910 live or not, return our past determination. */
4911 if (switches
[switchnum
].live_cond
!= 0)
4912 return switches
[switchnum
].live_cond
> 0;
4914 /* Now search for duplicate in a manner that depends on the name. */
4918 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4919 if (switches
[i
].part1
[0] == 'O')
4921 switches
[switchnum
].validated
= 1;
4922 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4927 case 'W': case 'f': case 'm':
4928 if (! strncmp (name
+ 1, "no-", 3))
4930 /* We have Xno-YYY, search for XYYY. */
4931 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4932 if (switches
[i
].part1
[0] == name
[0]
4933 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4935 switches
[switchnum
].validated
= 1;
4936 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4942 /* We have XYYY, search for Xno-YYY. */
4943 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4944 if (switches
[i
].part1
[0] == name
[0]
4945 && switches
[i
].part1
[1] == 'n'
4946 && switches
[i
].part1
[2] == 'o'
4947 && switches
[i
].part1
[3] == '-'
4948 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4950 switches
[switchnum
].validated
= 1;
4951 switches
[switchnum
].live_cond
= SWITCH_FALSE
;
4958 /* Otherwise the switch is live. */
4959 switches
[switchnum
].live_cond
= SWITCH_LIVE
;
4963 /* Pass a switch to the current accumulating command
4964 in the same form that we received it.
4965 SWITCHNUM identifies the switch; it is an index into
4966 the vector of switches gcc received, which is `switches'.
4967 This cannot fail since it never finishes a command line.
4969 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4971 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4975 give_switch (switchnum
, omit_first_word
, include_blanks
)
4977 int omit_first_word
;
4980 if (switches
[switchnum
].live_cond
== SWITCH_IGNORE
)
4983 if (!omit_first_word
)
4985 do_spec_1 ("-", 0, NULL_PTR
);
4986 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4989 if (switches
[switchnum
].args
!= 0)
4992 for (p
= switches
[switchnum
].args
; *p
; p
++)
4995 do_spec_1 (" ", 0, NULL_PTR
);
4996 do_spec_1 (*p
, 1, NULL_PTR
);
5000 do_spec_1 (" ", 0, NULL_PTR
);
5001 switches
[switchnum
].validated
= 1;
5004 /* Search for a file named NAME trying various prefixes including the
5005 user's -B prefix and some standard ones.
5006 Return the absolute file name found. If nothing is found, return NAME. */
5014 /* Try multilib_dir if it is defined. */
5015 if (multilib_dir
!= NULL
)
5019 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
5020 strcpy (try, multilib_dir
);
5021 strcat (try, dir_separator_str
);
5024 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
5026 /* If we don't find it in the multi library dir, then fall
5027 through and look for it in the normal places. */
5028 if (newname
!= NULL
)
5032 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
5033 return newname
? newname
: name
;
5036 /* Determine whether a directory exists. If LINKER, return 0 for
5037 certain fixed names not needed by the linker. If not LINKER, it is
5038 only important to return 0 if the host machine has a small ARG_MAX
5042 is_directory (path1
, path2
, linker
)
5047 int len1
= strlen (path1
);
5048 int len2
= strlen (path2
);
5049 char *path
= (char *) alloca (3 + len1
+ len2
);
5053 #ifndef SMALL_ARG_MAX
5058 /* Construct the path from the two parts. Ensure the string ends with "/.".
5059 The resulting path will be a directory even if the given path is a
5061 memcpy (path
, path1
, len1
);
5062 memcpy (path
+ len1
, path2
, len2
);
5063 cp
= path
+ len1
+ len2
;
5064 if (!IS_DIR_SEPARATOR (cp
[-1]))
5065 *cp
++ = DIR_SEPARATOR
;
5069 /* Exclude directories that the linker is known to search. */
5072 && strcmp (path
, concat (dir_separator_str
, "lib",
5073 dir_separator_str
, ".", NULL_PTR
)) == 0)
5075 && strcmp (path
, concat (dir_separator_str
, "usr",
5076 dir_separator_str
, "lib",
5077 dir_separator_str
, ".", NULL_PTR
)) == 0)))
5080 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
5083 /* Set up the various global variables to indicate that we're processing
5084 the input file named FILENAME. */
5087 set_input (filename
)
5088 const char *filename
;
5090 register const char *p
;
5092 input_filename
= filename
;
5093 input_filename_length
= strlen (input_filename
);
5095 input_basename
= input_filename
;
5096 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5097 /* Skip drive name so 'x:foo' is handled properly. */
5098 if (input_basename
[1] == ':')
5099 input_basename
+= 2;
5101 for (p
= input_basename
; *p
; p
++)
5102 if (IS_DIR_SEPARATOR (*p
))
5103 input_basename
= p
+ 1;
5105 /* Find a suffix starting with the last period,
5106 and set basename_length to exclude that suffix. */
5107 basename_length
= strlen (input_basename
);
5108 p
= input_basename
+ basename_length
;
5109 while (p
!= input_basename
&& *p
!= '.') --p
;
5110 if (*p
== '.' && p
!= input_basename
)
5112 basename_length
= p
- input_basename
;
5113 input_suffix
= p
+ 1;
5119 /* On fatal signals, delete all the temporary files. */
5122 fatal_error (signum
)
5125 signal (signum
, SIG_DFL
);
5126 delete_failure_queue ();
5127 delete_temp_files ();
5128 /* Get the same signal again, this time not handled,
5129 so its normal effect occurs. */
5130 kill (getpid (), signum
);
5133 extern int main
PARAMS ((int, char **));
5143 int linker_was_run
= 0;
5144 char *explicit_link_files
;
5147 struct user_specs
*uptr
;
5149 p
= argv
[0] + strlen (argv
[0]);
5150 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
5154 #ifdef HAVE_LC_MESSAGES
5155 setlocale (LC_MESSAGES
, "");
5157 (void) bindtextdomain (PACKAGE
, localedir
);
5158 (void) textdomain (PACKAGE
);
5160 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
5161 signal (SIGINT
, fatal_error
);
5163 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
5164 signal (SIGHUP
, fatal_error
);
5166 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
5167 signal (SIGTERM
, fatal_error
);
5169 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
5170 signal (SIGPIPE
, fatal_error
);
5174 argbuf
= (const char **) xmalloc (argbuf_length
* sizeof (const char *));
5176 obstack_init (&obstack
);
5178 /* Build multilib_select, et. al from the separate lines that make up each
5179 multilib selection. */
5181 const char *const *q
= multilib_raw
;
5184 obstack_init (&multilib_obstack
);
5185 while ((p
= *q
++) != (char *) 0)
5186 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5188 obstack_1grow (&multilib_obstack
, 0);
5189 multilib_select
= obstack_finish (&multilib_obstack
);
5191 q
= multilib_matches_raw
;
5192 while ((p
= *q
++) != (char *) 0)
5193 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5195 obstack_1grow (&multilib_obstack
, 0);
5196 multilib_matches
= obstack_finish (&multilib_obstack
);
5198 q
= multilib_exclusions_raw
;
5199 while ((p
= *q
++) != (char *) 0)
5200 obstack_grow (&multilib_obstack
, p
, strlen (p
));
5202 obstack_1grow (&multilib_obstack
, 0);
5203 multilib_exclusions
= obstack_finish (&multilib_obstack
);
5207 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
5211 obstack_1grow (&multilib_obstack
, ' ');
5212 obstack_grow (&multilib_obstack
,
5213 multilib_defaults_raw
[i
],
5214 strlen (multilib_defaults_raw
[i
]));
5218 obstack_1grow (&multilib_obstack
, 0);
5219 multilib_defaults
= obstack_finish (&multilib_obstack
);
5222 /* Set up to remember the pathname of gcc and any options
5223 needed for collect. We use argv[0] instead of programname because
5224 we need the complete pathname. */
5225 obstack_init (&collect_obstack
);
5226 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5227 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
5228 putenv (obstack_finish (&collect_obstack
));
5230 #ifdef INIT_ENVIRONMENT
5231 /* Set up any other necessary machine specific environment variables. */
5232 putenv (INIT_ENVIRONMENT
);
5235 /* Choose directory for temp files. */
5237 #ifndef MKTEMP_EACH_FILE
5238 temp_filename
= choose_temp_base ();
5239 temp_filename_length
= strlen (temp_filename
);
5242 /* Make a table of what switches there are (switches, n_switches).
5243 Make a table of specified input files (infiles, n_infiles).
5244 Decode switches that are handled locally. */
5246 process_command (argc
, argv
);
5251 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5253 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
5254 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5257 for (i
= 0; (int)i
< n_switches
; i
++)
5262 obstack_grow (&collect_obstack
, " ", 1);
5265 obstack_grow (&collect_obstack
, "'-", 2);
5266 q
= switches
[i
].part1
;
5267 while ((p
= index (q
,'\'')))
5269 obstack_grow (&collect_obstack
, q
, p
-q
);
5270 obstack_grow (&collect_obstack
, "'\\''", 4);
5273 obstack_grow (&collect_obstack
, q
, strlen (q
));
5274 obstack_grow (&collect_obstack
, "'", 1);
5276 for (args
= switches
[i
].args
; args
&& *args
; args
++)
5278 obstack_grow (&collect_obstack
, " '", 2);
5280 while ((p
= index (q
,'\'')))
5282 obstack_grow (&collect_obstack
, q
, p
-q
);
5283 obstack_grow (&collect_obstack
, "'\\''", 4);
5286 obstack_grow (&collect_obstack
, q
, strlen (q
));
5287 obstack_grow (&collect_obstack
, "'", 1);
5290 obstack_grow (&collect_obstack
, "\0", 1);
5291 putenv (obstack_finish (&collect_obstack
));
5294 /* Initialize the vector of specs to just the default.
5295 This means one element containing 0s, as a terminator. */
5297 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
5298 bcopy ((char *) default_compilers
, (char *) compilers
,
5299 sizeof default_compilers
);
5300 n_compilers
= n_default_compilers
;
5302 /* Read specs from a file if there is one. */
5304 machine_suffix
= concat (spec_machine
, dir_separator_str
,
5305 spec_version
, dir_separator_str
, NULL_PTR
);
5306 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
5308 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
5309 /* Read the specs file unless it is a default one. */
5310 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
5311 read_specs (specs_file
, TRUE
);
5315 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5316 for any override of as, ld and libraries. */
5317 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
5318 + strlen (just_machine_suffix
)
5319 + sizeof ("specs"));
5321 strcpy (specs_file
, standard_exec_prefix
);
5322 strcat (specs_file
, just_machine_suffix
);
5323 strcat (specs_file
, "specs");
5324 if (access (specs_file
, R_OK
) == 0)
5325 read_specs (specs_file
, TRUE
);
5327 /* If not cross-compiling, look for startfiles in the standard places. */
5328 if (*cross_compile
== '0')
5330 #ifdef MD_EXEC_PREFIX
5331 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
5332 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
5335 #ifdef MD_STARTFILE_PREFIX
5336 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
5340 #ifdef MD_STARTFILE_PREFIX_1
5341 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
5345 /* If standard_startfile_prefix is relative, base it on
5346 standard_exec_prefix. This lets us move the installed tree
5347 as a unit. If GCC_EXEC_PREFIX is defined, base
5348 standard_startfile_prefix on that as well. */
5349 if (IS_DIR_SEPARATOR (*standard_startfile_prefix
)
5350 || *standard_startfile_prefix
== '$'
5351 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5352 /* Check for disk name on MS-DOS-based systems. */
5353 || (standard_startfile_prefix
[1] == ':'
5354 && (IS_DIR_SEPARATOR (standard_startfile_prefix
[2])))
5357 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
5361 if (gcc_exec_prefix
)
5362 add_prefix (&startfile_prefixes
,
5363 concat (gcc_exec_prefix
, machine_suffix
,
5364 standard_startfile_prefix
, NULL_PTR
),
5365 NULL_PTR
, 0, 0, NULL_PTR
);
5366 add_prefix (&startfile_prefixes
,
5367 concat (standard_exec_prefix
,
5369 standard_startfile_prefix
, NULL_PTR
),
5370 NULL_PTR
, 0, 0, NULL_PTR
);
5373 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
5374 "BINUTILS", 0, 0, NULL_PTR
);
5375 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
5376 "BINUTILS", 0, 0, NULL_PTR
);
5377 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5378 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
5383 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix
) && gcc_exec_prefix
)
5384 add_prefix (&startfile_prefixes
,
5385 concat (gcc_exec_prefix
, machine_suffix
,
5386 standard_startfile_prefix
, NULL_PTR
),
5387 "BINUTILS", 0, 0, NULL_PTR
);
5390 /* Process any user specified specs in the order given on the command
5392 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
5394 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
5395 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
5398 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5399 if (gcc_exec_prefix
)
5401 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
5402 + strlen (spec_version
)
5403 + strlen (spec_machine
) + 3);
5404 strcpy (temp
, gcc_exec_prefix
);
5405 strcat (temp
, spec_machine
);
5406 strcat (temp
, dir_separator_str
);
5407 strcat (temp
, spec_version
);
5408 strcat (temp
, dir_separator_str
);
5409 gcc_exec_prefix
= temp
;
5412 /* Now we have the specs.
5413 Set the `valid' bits for switches that match anything in any spec. */
5415 validate_all_switches ();
5417 /* Now that we have the switches and the specs, set
5418 the subdirectory based on the options. */
5419 set_multilib_dir ();
5421 /* Warn about any switches that no pass was interested in. */
5423 for (i
= 0; (int)i
< n_switches
; i
++)
5424 if (! switches
[i
].validated
)
5425 error ("unrecognized option `-%s'", switches
[i
].part1
);
5427 /* Obey some of the options. */
5429 if (print_search_dirs
)
5431 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
5432 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
5433 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
5437 if (print_file_name
)
5439 printf ("%s\n", find_file (print_file_name
));
5443 if (print_prog_name
)
5445 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5446 printf ("%s\n", (newname
? newname
: print_prog_name
));
5450 if (print_multi_lib
)
5452 print_multilib_info ();
5456 if (print_multi_directory
)
5458 if (multilib_dir
== NULL
)
5461 printf ("%s\n", multilib_dir
);
5465 if (print_help_list
)
5471 printf ("\nFor bug reporting instructions, please see:\n");
5472 printf ("%s.\n", GCCBUGURL
);
5477 /* We do not exit here. Instead we have created a fake input file
5478 called 'help-dummy' which needs to be compiled, and we pass this
5479 on the the various sub-processes, along with the --help switch. */
5486 /* compiler_version is truncated at the first space when initialized
5487 from version string, so truncate version_string at the first space
5488 before comparing. */
5489 for (n
= 0; version_string
[n
]; n
++)
5490 if (version_string
[n
] == ' ')
5493 if (! strncmp (version_string
, compiler_version
, n
)
5494 && compiler_version
[n
] == 0)
5495 notice ("gcc version %s\n", version_string
);
5497 notice ("gcc driver version %s executing gcc version %s\n",
5498 version_string
, compiler_version
);
5504 if (n_infiles
== added_libraries
)
5505 fatal ("No input files");
5507 /* Make a place to record the compiler output file names
5508 that correspond to the input files. */
5511 i
+= lang_specific_extra_outfiles
;
5512 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5514 /* Record which files were specified explicitly as link input. */
5516 explicit_link_files
= xcalloc (1, n_infiles
);
5518 for (i
= 0; (int)i
< n_infiles
; i
++)
5520 register struct compiler
*cp
= 0;
5521 int this_file_error
= 0;
5523 /* Tell do_spec what to substitute for %i. */
5525 input_file_number
= i
;
5526 set_input (infiles
[i
].name
);
5528 /* Use the same thing in %o, unless cp->spec says otherwise. */
5530 outfiles
[i
] = input_filename
;
5532 /* Figure out which compiler from the file's suffix. */
5534 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5535 infiles
[i
].language
);
5539 /* Ok, we found an applicable compiler. Run its spec. */
5540 /* First say how much of input_filename to substitute for %b */
5543 if (cp
->spec
[0][0] == '#')
5544 error ("%s: %s compiler not installed on this system",
5545 input_filename
, &cp
->spec
[0][1]);
5548 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5550 len
+= strlen (cp
->spec
[j
]);
5553 char *p1
= (char *) xmalloc (len
+ 1);
5556 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5559 strcpy (p1
+ len
, cp
->spec
[j
]);
5560 len
+= strlen (cp
->spec
[j
]);
5563 value
= do_spec (p1
);
5567 this_file_error
= 1;
5570 /* If this file's name does not contain a recognized suffix,
5571 record it as explicit linker input. */
5574 explicit_link_files
[i
] = 1;
5576 /* Clear the delete-on-failure queue, deleting the files in it
5577 if this compilation failed. */
5579 if (this_file_error
)
5581 delete_failure_queue ();
5584 /* If this compilation succeeded, don't delete those files later. */
5585 clear_failure_queue ();
5588 /* Reset the output file name to the first input file name, for use
5589 with %b in LINK_SPEC on a target that prefers not to emit a.out
5592 set_input (infiles
[0].name
);
5594 if (error_count
== 0)
5596 /* Make sure INPUT_FILE_NUMBER points to first available open
5598 input_file_number
= n_infiles
;
5599 if (lang_specific_pre_link ())
5603 /* Run ld to link all the compiler output files. */
5605 if (error_count
== 0)
5607 int tmp
= execution_count
;
5609 /* We'll use ld if we can't find collect2. */
5610 if (! strcmp (linker_name_spec
, "collect2"))
5612 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5614 linker_name_spec
= "ld";
5616 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5618 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH");
5619 putenv_from_prefixes (&startfile_prefixes
, LIBRARY_PATH_ENV
);
5621 value
= do_spec (link_command_spec
);
5624 linker_was_run
= (tmp
!= execution_count
);
5627 /* Warn if a -B option was specified but the prefix was never used. */
5628 unused_prefix_warnings (&exec_prefixes
);
5629 unused_prefix_warnings (&startfile_prefixes
);
5631 /* If options said don't run linker,
5632 complain about input files to be given to the linker. */
5634 if (! linker_was_run
&& error_count
== 0)
5635 for (i
= 0; (int)i
< n_infiles
; i
++)
5636 if (explicit_link_files
[i
])
5637 error ("%s: linker input file unused since linking not done",
5640 /* Delete some or all of the temporary files we made. */
5643 delete_failure_queue ();
5644 delete_temp_files ();
5646 if (print_help_list
)
5648 printf ("\nFor bug reporting instructions, please see:\n");
5649 printf ("%s\n", GCCBUGURL
);
5652 return (signal_count
!= 0 ? 2
5653 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5657 /* Find the proper compilation spec for the file name NAME,
5658 whose length is LENGTH. LANGUAGE is the specified language,
5659 or 0 if this file is to be passed to the linker. */
5661 static struct compiler
*
5662 lookup_compiler (name
, length
, language
)
5665 const char *language
;
5667 struct compiler
*cp
;
5669 /* If this was specified by the user to be a linker input, indicate that. */
5670 if (language
!= 0 && language
[0] == '*')
5673 /* Otherwise, look for the language, if one is spec'd. */
5676 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5677 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5680 error ("language %s not recognized", language
);
5684 /* Look for a suffix. */
5685 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5687 if (/* The suffix `-' matches only the file name `-'. */
5688 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5689 || (strlen (cp
->suffix
) < length
5690 /* See if the suffix matches the end of NAME. */
5691 && !strcmp (cp
->suffix
,
5692 name
+ length
- strlen (cp
->suffix
))
5697 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5698 /* look again, but case-insensitively this time. */
5700 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5702 if (/* The suffix `-' matches only the file name `-'. */
5703 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5704 || (strlen (cp
->suffix
) < length
5705 /* See if the suffix matches the end of NAME. */
5706 && ((!strcmp (cp
->suffix
,
5707 name
+ length
- strlen (cp
->suffix
))
5708 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5709 && !strcasecmp (cp
->suffix
,
5710 name
+ length
- strlen (cp
->suffix
)))
5717 if (cp
>= compilers
)
5719 if (cp
->spec
[0][0] == '@')
5721 struct compiler
*new;
5723 /* An alias entry maps a suffix to a language.
5724 Search for the language; pass 0 for NAME and LENGTH
5725 to avoid infinite recursion if language not found.
5726 Construct the new compiler spec. */
5727 language
= cp
->spec
[0] + 1;
5728 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5729 new->suffix
= cp
->suffix
;
5731 lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5736 /* A non-alias entry: return it. */
5744 save_string (s
, len
)
5748 register char *result
= xmalloc (len
+ 1);
5750 bcopy (s
, result
, len
);
5756 pfatal_with_name (name
)
5759 perror_with_name (name
);
5760 delete_temp_files ();
5765 perror_with_name (name
)
5768 error ("%s: %s", name
, xstrerror (errno
));
5772 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5773 const char *errmsg_fmt
;
5774 const char *errmsg_arg
;
5778 int save_errno
= errno
;
5780 /* Space for trailing '\0' is in %s. */
5781 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5782 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5788 pfatal_with_name (errmsg_fmt
);
5791 /* Output an error message and exit */
5796 fatal ("Internal gcc abort.");
5799 /* Output an error message and exit */
5802 fatal
VPARAMS ((const char *msgid
, ...))
5804 #ifndef ANSI_PROTOTYPES
5809 VA_START (ap
, msgid
);
5811 #ifndef ANSI_PROTOTYPES
5812 msgid
= va_arg (ap
, const char *);
5815 fprintf (stderr
, "%s: ", programname
);
5816 vfprintf (stderr
, _(msgid
), ap
);
5818 fprintf (stderr
, "\n");
5819 delete_temp_files ();
5824 error
VPARAMS ((const char *msgid
, ...))
5826 #ifndef ANSI_PROTOTYPES
5831 VA_START (ap
, msgid
);
5833 #ifndef ANSI_PROTOTYPES
5834 msgid
= va_arg (ap
, const char *);
5837 fprintf (stderr
, "%s: ", programname
);
5838 vfprintf (stderr
, _(msgid
), ap
);
5841 fprintf (stderr
, "\n");
5845 notice
VPARAMS ((const char *msgid
, ...))
5847 #ifndef ANSI_PROTOTYPES
5852 VA_START (ap
, msgid
);
5854 #ifndef ANSI_PROTOTYPES
5855 msgid
= va_arg (ap
, const char *);
5858 vfprintf (stderr
, _(msgid
), ap
);
5864 validate_all_switches ()
5866 struct compiler
*comp
;
5867 register const char *p
;
5869 struct spec_list
*spec
;
5871 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5874 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5878 if (c
== '%' && *p
== '{')
5879 /* We have a switch spec. */
5880 validate_switches (p
+ 1);
5884 /* Look through the linked list of specs read from the specs file. */
5885 for (spec
= specs
; spec
; spec
= spec
->next
)
5887 p
= *(spec
->ptr_spec
);
5889 if (c
== '%' && *p
== '{')
5890 /* We have a switch spec. */
5891 validate_switches (p
+ 1);
5894 p
= link_command_spec
;
5896 if (c
== '%' && *p
== '{')
5897 /* We have a switch spec. */
5898 validate_switches (p
+ 1);
5901 /* Look at the switch-name that comes after START
5902 and mark as valid all supplied switches that match it. */
5905 validate_switches (start
)
5908 register const char *p
= start
;
5923 while (*p
!= ':' && *p
!= '}') p
++;
5927 else if (p
[-1] == '*')
5929 /* Mark all matching switches as valid. */
5931 for (i
= 0; i
< n_switches
; i
++)
5932 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5933 switches
[i
].validated
= 1;
5937 /* Mark an exact matching switch as valid. */
5938 for (i
= 0; i
< n_switches
; i
++)
5940 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5941 && switches
[i
].part1
[p
- filter
] == 0)
5942 switches
[i
].validated
= 1;
5947 /* Check whether a particular argument was used. The first time we
5948 canonicalize the switches to keep only the ones we care about. */
5958 const char *replace
;
5963 static struct mswitchstr
*mswitches
;
5964 static int n_mswitches
;
5969 struct mswitchstr
*matches
;
5973 /* Break multilib_matches into the component strings of string and replacement
5975 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5979 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5981 q
= multilib_matches
;
5991 matches
[i
].len
= q
- matches
[i
].str
;
5993 matches
[i
].replace
= ++q
;
5994 while (*q
!= ';' && *q
!= '\0')
6000 matches
[i
].rep_len
= q
- matches
[i
].replace
;
6006 /* Now build a list of the replacement string for switches that we care
6007 about. Make sure we allocate at least one entry. This prevents
6008 xmalloc from calling fatal, and prevents us from re-executing this
6011 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
6012 * (n_switches
? n_switches
: 1));
6013 for (i
= 0; i
< n_switches
; i
++)
6015 int xlen
= strlen (switches
[i
].part1
);
6016 for (j
= 0; j
< cnt
; j
++)
6017 if (xlen
== matches
[j
].len
6018 && ! strncmp (switches
[i
].part1
, matches
[j
].str
, xlen
))
6020 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
6021 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
6022 mswitches
[n_mswitches
].replace
= (char *)0;
6023 mswitches
[n_mswitches
].rep_len
= 0;
6030 for (i
= 0; i
< n_mswitches
; i
++)
6031 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
6038 default_arg (p
, len
)
6042 const char *start
, *end
;
6044 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
6046 while (*start
== ' ' || *start
== '\t')
6052 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
6055 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
6065 /* Work out the subdirectory to use based on the options. The format of
6066 multilib_select is a list of elements. Each element is a subdirectory
6067 name followed by a list of options followed by a semicolon. The format
6068 of multilib_exclusions is the same, but without the preceding
6069 directory. First gcc will check the exclusions, if none of the options
6070 beginning with an exclamation point are present, and all of the other
6071 options are present, then we will ignore this completely. Passing
6072 that, gcc will consider each multilib_select in turn using the same
6073 rules for matching the options. If a match is found, that subdirectory
6080 unsigned int this_path_len
;
6081 const char *this_path
, *this_arg
;
6085 p
= multilib_exclusions
;
6088 /* Ignore newlines. */
6095 /* Check the arguments. */
6109 while (*p
!= ' ' && *p
!= ';')
6116 if (*this_arg
!= '!')
6124 ok
= used_arg (this_arg
, p
- this_arg
);
6138 p
= multilib_select
;
6141 /* Ignore newlines. */
6148 /* Get the initial path. */
6156 this_path_len
= p
- this_path
;
6158 /* Check the arguments. */
6173 while (*p
!= ' ' && *p
!= ';')
6180 if (*this_arg
!= '!')
6188 /* If this is a default argument, we can just ignore it.
6189 This is true even if this_arg begins with '!'. Beginning
6190 with '!' does not mean that this argument is necessarily
6191 inappropriate for this library: it merely means that
6192 there is a more specific library which uses this
6193 argument. If this argument is a default, we need not
6194 consider that more specific library. */
6195 if (! default_arg (this_arg
, p
- this_arg
))
6197 ok
= used_arg (this_arg
, p
- this_arg
);
6208 if (this_path_len
!= 1
6209 || this_path
[0] != '.')
6211 char * new_multilib_dir
= xmalloc (this_path_len
+ 1);
6212 strncpy (new_multilib_dir
, this_path
, this_path_len
);
6213 new_multilib_dir
[this_path_len
] = '\0';
6214 multilib_dir
= new_multilib_dir
;
6223 /* Print out the multiple library subdirectory selection
6224 information. This prints out a series of lines. Each line looks
6225 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6226 required. Only the desired options are printed out, the negative
6227 matches. The options are print without a leading dash. There are
6228 no spaces to make it easy to use the information in the shell.
6229 Each subdirectory is printed only once. This assumes the ordering
6230 generated by the genmultilib script. Also, we leave out ones that match
6234 print_multilib_info ()
6236 const char *p
= multilib_select
;
6237 const char *last_path
= 0, *this_path
;
6239 unsigned int last_path_len
= 0;
6244 /* Ignore newlines. */
6251 /* Get the initial path. */
6260 /* Check for matches with the multilib_exclusions. We don't bother
6261 with the '!' in either list. If any of the exclusion rules match
6262 all of its options with the select rule, we skip it. */
6264 const char *e
= multilib_exclusions
;
6265 const char *this_arg
;
6270 /* Ignore newlines. */
6277 /* Check the arguments. */
6294 while (*e
!= ' ' && *e
!= ';')
6305 int len
= e
- this_arg
;
6312 while (*q
!= ' ' && *q
!= ';')
6319 if (! strncmp (arg
, this_arg
, (len
< q
- arg
) ? q
- arg
: len
) ||
6320 default_arg (this_arg
, e
- this_arg
))
6350 /* If this is a duplicate, skip it. */
6351 skip
= (last_path
!= 0 && (unsigned int)(p
- this_path
) == last_path_len
6352 && ! strncmp (last_path
, this_path
, last_path_len
));
6354 last_path
= this_path
;
6355 last_path_len
= p
- this_path
;
6358 /* If this directory requires any default arguments, we can skip
6359 it. We will already have printed a directory identical to
6360 this one which does not require that default argument. */
6378 while (*q
!= ' ' && *q
!= ';')
6386 && default_arg (arg
, q
- arg
))
6401 for (p1
= last_path
; p1
< p
; p1
++)
6420 use_arg
= *p
!= '!';
6425 while (*p
!= ' ' && *p
!= ';')
6440 /* If there are extra options, print them now. */
6441 if (multilib_extra
&& *multilib_extra
)
6443 int print_at
= TRUE
;
6446 for (q
= multilib_extra
; *q
!= '\0'; q
++)