1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-98, 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #ifdef NEED_DECLARATION_GETRUSAGE
51 extern int getrusage
PROTO ((int, struct rusage
*));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
68 /* By default, colon separates directories in a path. */
69 #ifndef PATH_SEPARATOR
70 #define PATH_SEPARATOR ':'
74 #define DIR_SEPARATOR '/'
77 /* Define IS_DIR_SEPARATOR. */
78 #ifndef DIR_SEPARATOR_2
79 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
80 #else /* DIR_SEPARATOR_2 */
81 # define IS_DIR_SEPARATOR(ch) \
82 (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
83 #endif /* DIR_SEPARATOR_2 */
85 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
87 #define obstack_chunk_alloc xmalloc
88 #define obstack_chunk_free free
90 #ifndef GET_ENV_PATH_LIST
91 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
95 #define kill(p,s) raise(s)
98 /* If a stage of compilation returns an exit status >= 1,
99 compilation of that file ceases. */
101 #define MIN_FATAL_STATUS 1
103 /* Flag saying to pass the greatest exit code returned by a sub-process
104 to the calling program. */
105 static int pass_exit_codes
;
107 /* Flag saying to print the directories gcc will search through looking for
108 programs, libraries, etc. */
110 static int print_search_dirs
;
112 /* Flag saying to print the full filename of this file
113 as found through our usual search mechanism. */
115 static const char *print_file_name
= NULL
;
117 /* As print_file_name, but search for executable file. */
119 static const char *print_prog_name
= NULL
;
121 /* Flag saying to print the relative path we'd use to
122 find libgcc.a given the current compiler flags. */
124 static int print_multi_directory
;
126 /* Flag saying to print the list of subdirectories and
127 compiler flags used to select them in a standard form. */
129 static int print_multi_lib
;
131 /* Flag saying to print the command line options understood by gcc and its
134 static int print_help_list
;
136 /* Flag indicating whether we should print the command and arguments */
138 static int verbose_flag
;
140 /* Flag indicating whether we should report subprocess execution times
141 (if this is supported by the system - see pexecute.c). */
143 static int report_times
;
145 /* Nonzero means write "temp" files in source directory
146 and use the source file's name in them, and don't delete them. */
148 static int save_temps_flag
;
150 /* The compiler version. */
152 static char *compiler_version
;
154 /* The target version specified with -V */
156 static char *spec_version
= DEFAULT_TARGET_VERSION
;
158 /* The target machine specified with -b. */
160 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
162 /* Nonzero if cross-compiling.
163 When -b is used, the value comes from the `specs' file. */
166 static char *cross_compile
= "1";
168 static char *cross_compile
= "0";
171 /* The number of errors that have occurred; the link phase will not be
172 run if this is non-zero. */
173 static int error_count
= 0;
175 /* Greatest exit code of sub-processes that has been encountered up to
177 static int greatest_status
= 1;
179 /* This is the obstack which we use to allocate many strings. */
181 static struct obstack obstack
;
183 /* This is the obstack to build an environment variable to pass to
184 collect2 that describes all of the relevant switches of what to
185 pass the compiler in building the list of pointers to constructors
188 static struct obstack collect_obstack
;
190 /* These structs are used to collect resource usage information for
192 #ifdef HAVE_GETRUSAGE
193 static struct rusage rus
, prus
;
196 extern char *version_string
;
198 /* Forward declaration for prototypes. */
201 static void init_spec
PROTO((void));
202 static void read_specs
PROTO((const char *, int));
203 static void set_spec
PROTO((const char *, const char *));
204 static struct compiler
*lookup_compiler
PROTO((const char *, size_t, const char *));
205 static char *build_search_list
PROTO((struct path_prefix
*, const char *, int));
206 static void putenv_from_prefixes
PROTO((struct path_prefix
*, const char *));
207 static int access_check
PROTO((const char *, int));
208 static char *find_a_file
PROTO((struct path_prefix
*, const char *, int));
209 static void add_prefix
PROTO((struct path_prefix
*, const char *,
210 const char *, int, int, int *));
211 static char *skip_whitespace
PROTO((char *));
212 static void record_temp_file
PROTO((const char *, int, int));
213 static void delete_if_ordinary
PROTO((const char *));
214 static void delete_temp_files
PROTO((void));
215 static void delete_failure_queue
PROTO((void));
216 static void clear_failure_queue
PROTO((void));
217 static int check_live_switch
PROTO((int, int));
218 static const char *handle_braces
PROTO((const char *));
219 static char *save_string
PROTO((const char *, int));
220 static int do_spec_1
PROTO((const char *, int, const char *));
221 static const char *find_file
PROTO((const char *));
222 static int is_directory
PROTO((const char *, const char *, int));
223 static void validate_switches
PROTO((const char *));
224 static void validate_all_switches
PROTO((void));
225 static void give_switch
PROTO((int, int, int));
226 static int used_arg
PROTO((const char *, int));
227 static int default_arg
PROTO((const char *, int));
228 static void set_multilib_dir
PROTO((void));
229 static void print_multilib_info
PROTO((void));
230 static void pfatal_with_name
PROTO((const char *)) ATTRIBUTE_NORETURN
;
231 static void perror_with_name
PROTO((const char *));
232 static void pfatal_pexecute
PROTO((const char *, const char *))
234 static void error
PVPROTO((const char *, ...))
236 static void notice
PVPROTO((const char *, ...))
238 static void display_help
PROTO((void));
239 static void add_preprocessor_option
PROTO ((const char *, int));
240 static void add_assembler_option
PROTO ((const char *, int));
241 static void add_linker_option
PROTO ((const char *, int));
242 static void process_command
PROTO ((int, char **));
243 static int execute
PROTO ((void));
244 static void unused_prefix_warnings
PROTO ((struct path_prefix
*));
245 static void clear_args
PROTO ((void));
246 static void fatal_error
PROTO ((int));
248 /* Specs are strings containing lines, each of which (if not blank)
249 is made up of a program name, and arguments separated by spaces.
250 The program name must be exact and start from root, since no path
251 is searched and it is unreliable to depend on the current working directory.
252 Redirection of input or output is not supported; the subprograms must
253 accept filenames saying what files to read and write.
255 In addition, the specs can contain %-sequences to substitute variable text
256 or for conditional text. Here is a table of all defined %-sequences.
257 Note that spaces are not generated automatically around the results of
258 expanding these sequences; therefore, you can concatenate them together
259 or with constant text in a single argument.
261 %% substitute one % into the program name or argument.
262 %i substitute the name of the input file being processed.
263 %b substitute the basename of the input file being processed.
264 This is the substring up to (and not including) the last period
265 and not including the directory.
267 substitute a file name that has suffix SUFFIX and is chosen
268 once per compilation, and mark the argument a la %d. To reduce
269 exposure to denial-of-service attacks, the file name is now
270 chosen in a way that is hard to predict even when previously
271 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
272 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
273 the regexp "[.A-Za-z]*" or the special string "%O", which is
274 treated exactly as if %O had been pre-processed. Previously, %g
275 was simply substituted with a file name chosen once per compilation,
276 without regard to any appended suffix (which was therefore treated
277 just like ordinary text), making such attacks more likely to succeed.
279 like %g, but generates a new temporary file name even if %uSUFFIX
282 substitutes the last file name generated with %uSUFFIX, generating a
283 new one if there is no such last file name. In the absence of any
284 %uSUFFIX, this is just like %gSUFFIX, except they don't share
285 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
286 would involve the generation of two distinct file names, one
287 for each `%g.s' and another for each `%U.s'. Previously, %U was
288 simply substituted with a file name chosen for the previous %u,
289 without regard to any appended suffix.
290 %d marks the argument containing or following the %d as a
291 temporary file name, so that that file will be deleted if CC exits
292 successfully. Unlike %g, this contributes no text to the argument.
293 %w marks the argument containing or following the %w as the
294 "output file" of this compilation. This puts the argument
295 into the sequence of arguments that %o will substitute later.
297 like %{...} but mark last argument supplied within
298 as a file to be deleted on failure.
299 %o substitutes the names of all the output files, with spaces
300 automatically placed around them. You should write spaces
301 around the %o as well or the results are undefined.
302 %o is for use in the specs for running the linker.
303 Input files whose names have no recognized suffix are not compiled
304 at all, but they are included among the output files, so they will
306 %O substitutes the suffix for object files. Note that this is
307 handled specially when it immediately follows %g, %u, or %U,
308 because of the need for those to form complete file names. The
309 handling is such that %O is treated exactly as if it had already
310 been substituted, except that %g, %u, and %U do not currently
311 support additional SUFFIX characters following %O as they would
312 following, for example, `.o'.
313 %p substitutes the standard macro predefinitions for the
314 current target machine. Use this when running cpp.
315 %P like %p, but puts `__' before and after the name of each macro.
316 (Except macros that already have __.)
318 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
319 %s current argument is the name of a library or startup file of some sort.
320 Search for that file in a standard list of directories
321 and substitute the full name found.
322 %eSTR Print STR as an error message. STR is terminated by a newline.
323 Use this when inconsistent options are detected.
324 %x{OPTION} Accumulate an option for %X.
325 %X Output the accumulated linker options specified by compilations.
326 %Y Output the accumulated assembler options specified by compilations.
327 %Z Output the accumulated preprocessor options specified by compilations.
328 %v1 Substitute the major version number of GCC.
329 (For version 2.5.n, this is 2.)
330 %v2 Substitute the minor version number of GCC.
331 (For version 2.5.n, this is 5.)
332 %a process ASM_SPEC as a spec.
333 This allows config.h to specify part of the spec for running as.
334 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
335 used here. This can be used to run a post-processor after the
336 assembler has done its job.
337 %D Dump out a -L option for each directory in startfile_prefixes.
338 If multilib_dir is set, extra entries are generated with it affixed.
339 %l process LINK_SPEC as a spec.
340 %L process LIB_SPEC as a spec.
341 %G process LIBGCC_SPEC as a spec.
342 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
343 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
344 %c process SIGNED_CHAR_SPEC as a spec.
345 %C process CPP_SPEC as a spec. A capital C is actually used here.
346 %1 process CC1_SPEC as a spec.
347 %2 process CC1PLUS_SPEC as a spec.
348 %| output "-" if the input for the current command is coming from a pipe.
349 %* substitute the variable part of a matched option. (See below.)
350 Note that each comma in the substituted string is replaced by
352 %{S} substitutes the -S switch, if that switch was given to CC.
353 If that switch was not specified, this substitutes nothing.
354 Here S is a metasyntactic variable.
355 %{S*} substitutes all the switches specified to CC whose names start
356 with -S. This is used for -o, -D, -I, etc; switches that take
357 arguments. CC considers `-o foo' as being one switch whose
358 name starts with `o'. %{o*} would substitute this text,
359 including the space; thus, two arguments would be generated.
360 %{^S*} likewise, but don't put a blank between a switch and any args.
361 %{S*:X} substitutes X if one or more switches whose names start with -S are
362 specified to CC. Note that the tail part of the -S option
363 (i.e. the part matched by the `*') will be substituted for each
364 occurrence of %* within X.
365 %{S:X} substitutes X, but only if the -S switch was given to CC.
366 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
367 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
368 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
369 %{.S:X} substitutes X, but only if processing a file with suffix S.
370 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
371 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
372 combined with ! and . as above binding stronger than the OR.
373 %(Spec) processes a specification defined in a specs file as *Spec:
374 %[Spec] as above, but put __ around -D arguments
376 The conditional text X in a %{S:X} or %{!S:X} construct may contain
377 other nested % constructs or spaces, or even newlines. They are
378 processed as usual, as described above.
380 The -O, -f, -m, and -W switches are handled specifically in these
381 constructs. If another value of -O or the negated form of a -f, -m, or
382 -W switch is found later in the command line, the earlier switch
383 value is ignored, except with {S*} where S is just one letter; this
384 passes all matching options.
386 The character | at the beginning of the predicate text is used to indicate
387 that a command should be piped to the following command, but only if -pipe
390 Note that it is built into CC which switches take arguments and which
391 do not. You might think it would be useful to generalize this to
392 allow each compiler's spec to say which switches take arguments. But
393 this cannot be done in a consistent fashion. CC cannot even decide
394 which input files have been specified without knowing which switches
395 take arguments, and it must know which input files to compile in order
396 to tell which compilers to run.
398 CC also knows implicitly that arguments starting in `-l' are to be
399 treated as compiler output files, and passed to the linker in their
400 proper position among the other output files. */
402 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
404 /* config.h can define ASM_SPEC to provide extra args to the assembler
405 or extra switch-translations. */
410 /* config.h can define ASM_FINAL_SPEC to run a post processor after
411 the assembler has run. */
412 #ifndef ASM_FINAL_SPEC
413 #define ASM_FINAL_SPEC ""
416 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
417 or extra switch-translations. */
422 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
423 or extra switch-translations. */
428 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
429 or extra switch-translations. */
431 #define CC1PLUS_SPEC ""
434 /* config.h can define LINK_SPEC to provide extra args to the linker
435 or extra switch-translations. */
440 /* config.h can define LIB_SPEC to override the default libraries. */
442 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
445 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
448 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
449 /* Have gcc do the search for libgcc.a. */
450 #define LIBGCC_SPEC "libgcc.a%s"
452 #define LIBGCC_SPEC "-lgcc"
456 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
457 #ifndef STARTFILE_SPEC
458 #define STARTFILE_SPEC \
459 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
462 /* config.h can define SWITCHES_NEED_SPACES to control which options
463 require spaces between the option and the argument. */
464 #ifndef SWITCHES_NEED_SPACES
465 #define SWITCHES_NEED_SPACES ""
468 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
470 #define ENDFILE_SPEC ""
473 /* This spec is used for telling cpp whether char is signed or not. */
474 #ifndef SIGNED_CHAR_SPEC
475 /* Use #if rather than ?:
476 because MIPS C compiler rejects like ?: in initializers. */
477 #if DEFAULT_SIGNED_CHAR
478 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
480 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
485 #define LINKER_NAME "collect2"
488 static char *cpp_spec
= CPP_SPEC
;
489 static char *cpp_predefines
= CPP_PREDEFINES
;
490 static char *cc1_spec
= CC1_SPEC
;
491 static char *cc1plus_spec
= CC1PLUS_SPEC
;
492 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
493 static char *asm_spec
= ASM_SPEC
;
494 static char *asm_final_spec
= ASM_FINAL_SPEC
;
495 static char *link_spec
= LINK_SPEC
;
496 static char *lib_spec
= LIB_SPEC
;
497 static char *libgcc_spec
= LIBGCC_SPEC
;
498 static char *endfile_spec
= ENDFILE_SPEC
;
499 static char *startfile_spec
= STARTFILE_SPEC
;
500 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
501 static char *linker_name_spec
= LINKER_NAME
;
503 /* Some compilers have limits on line lengths, and the multilib_select
504 and/or multilib_matches strings can be very long, so we build them at
506 static struct obstack multilib_obstack
;
507 static char *multilib_select
;
508 static char *multilib_matches
;
509 static char *multilib_defaults
;
510 #include "multilib.h"
512 /* Check whether a particular argument is a default argument. */
514 #ifndef MULTILIB_DEFAULTS
515 #define MULTILIB_DEFAULTS { "" }
518 static const char *const multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
521 struct user_specs
*next
;
522 const char *filename
;
525 static struct user_specs
*user_specs_head
, *user_specs_tail
;
527 /* This defines which switch letters take arguments. */
529 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
530 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
531 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
532 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
533 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
534 || (CHAR) == 'B' || (CHAR) == 'b')
536 #ifndef SWITCH_TAKES_ARG
537 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
540 /* This defines which multi-letter switches take arguments. */
542 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
543 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
544 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
545 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
546 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
547 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
548 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
550 #ifndef WORD_SWITCH_TAKES_ARG
551 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
555 #ifdef HAVE_EXECUTABLE_SUFFIX
556 /* This defines which switches stop a full compilation. */
557 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
558 ((CHAR) == 'c' || (CHAR) == 'S')
560 #ifndef SWITCH_CURTAILS_COMPILATION
561 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
562 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
566 /* Record the mapping from file suffixes for compilation specs. */
570 const char *suffix
; /* Use this compiler for input files
571 whose names end in this suffix. */
573 const char *spec
[4]; /* To use this compiler, concatenate these
574 specs and pass to do_spec. */
577 /* Pointer to a vector of `struct compiler' that gives the spec for
578 compiling a file, based on its suffix.
579 A file that does not end in any of these suffixes will be passed
580 unchanged to the loader and nothing else will be done to it.
582 An entry containing two 0s is used to terminate the vector.
584 If multiple entries match a file, the last matching one is used. */
586 static struct compiler
*compilers
;
588 /* Number of entries in `compilers', not counting the null terminator. */
590 static int n_compilers
;
592 /* The default list of file name suffixes and their compilation specs. */
594 static struct compiler default_compilers
[] =
596 /* Add lists of suffixes of known languages here. If those languages
597 were not present when we built the driver, we will hit these copies
598 and be given a more meaningful error than "file not used since
599 linking is not done". */
600 {".m", {"#Objective-C"}},
601 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
602 {".c++", {"#C++"}}, {".C", {"#C++"}},
603 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
604 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
605 {".fpp", {"#Fortran"}},
606 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
607 /* Next come the entries for C. */
612 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
613 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
614 %{C:%{!E:%eGNU C does not support -C without using -E}}\
615 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
616 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
617 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
618 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
619 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
620 %{ffast-math:-D__FAST_MATH__}\
621 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
622 %{traditional} %{ftraditional:-traditional}\
623 %{traditional-cpp:-traditional}\
624 %{fleading-underscore} %{fno-leading-underscore}\
625 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
627 %{!E:%{!M:%{!MM:cc1 %i %1 \
628 %{std*} %{nostdinc*} %{A*} %{I*} %I\
629 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
630 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
631 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
632 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
633 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
634 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
635 %{ffast-math:-D__FAST_MATH__}\
636 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
637 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
638 %{H} %C %{D*} %{U*} %{i*} %Z\
639 %{ftraditional:-traditional}\
640 %{traditional-cpp:-traditional}\
641 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
642 %{aux-info*} %{Qn:-fno-ident}\
644 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
645 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
646 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
648 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
649 %{!pipe:%g.s} %A\n }}}}"
650 #else /* ! USE_CPPLIB */
651 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
652 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
653 %{C:%{!E:%eGNU C does not support -C without using -E}}\
654 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
655 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
656 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
657 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
658 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
659 %{ffast-math:-D__FAST_MATH__}\
660 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
661 %{traditional} %{ftraditional:-traditional}\
662 %{traditional-cpp:-traditional}\
663 %{fleading-underscore} %{fno-leading-underscore}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
666 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
667 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
669 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
670 %{aux-info*} %{Qn:-fno-ident}\
672 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
673 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
675 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
676 %{!pipe:%g.s} %A\n }}}}"
677 #endif /* ! USE_CPPLIB */
680 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
681 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
682 %{C:%{!E:%eGNU C does not support -C without using -E}}\
683 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
684 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
685 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
686 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
687 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
688 %{ffast-math:-D__FAST_MATH__}\
689 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
690 %{traditional} %{ftraditional:-traditional}\
691 %{traditional-cpp:-traditional}\
692 %{fleading-underscore} %{fno-leading-underscore}\
693 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
695 %{!E:%e-E required when input is from standard input}"}},
696 {".h", {"@c-header"}},
698 {"%{!E:%eCompilation of header file requested} \
699 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
700 %{C:%{!E:%eGNU C does not support -C without using -E}}\
701 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
702 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
703 %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
704 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
705 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
706 %{ffast-math:-D__FAST_MATH__}\
707 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
708 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
709 %{traditional} %{ftraditional:-traditional}\
710 %{traditional-cpp:-traditional}\
711 %{fleading-underscore} %{fno-leading-underscore}\
712 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
714 {".i", {"@cpp-output"}},
716 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
717 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
718 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
719 %{aux-info*} %{Qn:-fno-ident} -fpreprocessed\
720 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
721 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
723 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
724 %{!pipe:%g.s} %A\n }}}}"}},
725 {".s", {"@assembler"}},
727 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
728 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
730 {".S", {"@assembler-with-cpp"}},
731 {"@assembler-with-cpp",
732 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
733 %{C:%{!E:%eGNU C does not support -C without using -E}}\
734 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
735 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
736 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
737 %{ffast-math:-D__FAST_MATH__}\
738 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
739 %{traditional} %{ftraditional:-traditional}\
740 %{traditional-cpp:-traditional}\
741 %{fleading-underscore} %{fno-leading-underscore}\
742 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
743 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
744 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
745 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
746 %{!pipe:%g.s} %A\n }}}}"}},
748 /* Mark end of table */
752 /* Number of elements in default_compilers, not counting the terminator. */
754 static int n_default_compilers
755 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
757 /* Here is the spec for running the linker, after compiling all files. */
759 /* -u* was put back because both BSD and SysV seem to support it. */
760 /* %{static:} simply prevents an error message if the target machine
761 doesn't handle -static. */
762 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
763 scripts which exist in user specified directories, or in standard
765 #ifdef LINK_COMMAND_SPEC
766 /* Provide option to override link_command_spec from machine specific
767 configuration files. */
768 static const char *link_command_spec
=
771 #ifdef LINK_LIBGCC_SPECIAL
772 /* Don't generate -L options. */
773 static const char *link_command_spec
= "\
775 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
776 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
777 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
779 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
780 {"--pass
-exit
-codes
", "-pass
-exit
-codes
", 0},
781 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
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}}}\
791 %{static:} %{L*} %D %o\
792 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
793 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
799 /* A vector of options to give to the linker.
800 These options are accumulated by %x,
801 and substituted into the linker command with %X. */
802 static int n_linker_options
;
803 static char **linker_options
;
805 /* A vector of options to give to the assembler.
806 These options are accumulated by -Wa,
807 and substituted into the assembler command with %Y. */
808 static int n_assembler_options
;
809 static char **assembler_options
;
811 /* A vector of options to give to the preprocessor.
812 These options are accumulated by -Wp,
813 and substituted into the preprocessor command with %Z. */
814 static int n_preprocessor_options
;
815 static char **preprocessor_options
;
817 /* Define how to map long options into short ones. */
819 /* This structure describes one mapping. */
822 /* The long option's name. */
824 /* The equivalent short option. */
825 const char *equivalent
;
826 /* Argument info. A string of flag chars; NULL equals no options.
827 a => argument required.
828 o => argument optional.
829 j => join argument to equivalent, making one word.
830 * => require other text after NAME as an argument. */
831 const char *arg_info
;
834 /* This is the table of mappings. Mappings are tried sequentially
835 for each option encountered; the first one that matches, wins. */
837 struct option_map option_map
[] =
839 {"--all-warnings", "-Wall", 0},
840 {"--ansi", "-ansi", 0},
841 {"--assemble", "-S", 0},
842 {"--assert", "-A", "a"},
843 {"--classpath", "-fclasspath=", "aj"},
844 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
845 {"--comments", "-C", 0},
846 {"--compile", "-c", 0},
847 {"--debug", "-g", "oj"},
848 {"--define-macro", "-D", "aj"},
849 {"--dependencies", "-M", 0},
850 {"--dump", "-d", "a"},
851 {"--dumpbase", "-dumpbase", "a"},
852 {"--entry", "-e", 0},
853 {"--extra-warnings", "-W", 0},
854 {"--for-assembler", "-Wa", "a"},
855 {"--for-linker", "-Xlinker", "a"},
856 {"--force-link", "-u", "a"},
857 {"--imacros", "-imacros", "a"},
858 {"--include", "-include", "a"},
859 {"--include-barrier", "-I-", 0},
860 {"--include-directory", "-I", "aj"},
861 {"--include-directory-after", "-idirafter", "a"},
862 {"--include-prefix", "-iprefix", "a"},
863 {"--include-with-prefix", "-iwithprefix", "a"},
864 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
865 {"--include-with-prefix-after", "-iwithprefix", "a"},
866 {"--language", "-x", "a"},
867 {"--library-directory", "-L", "a"},
868 {"--machine", "-m", "aj"},
869 {"--machine-", "-m", "*j"},
870 {"--no-line-commands", "-P", 0},
871 {"--no-precompiled-includes", "-noprecomp", 0},
872 {"--no-standard-includes", "-nostdinc", 0},
873 {"--no-standard-libraries", "-nostdlib", 0},
874 {"--no-warnings", "-w", 0},
875 {"--optimize", "-O", "oj"},
876 {"--output", "-o", "a"},
877 {"--output-class-directory", "-foutput-class-dir=", "ja"},
878 {"--pedantic", "-pedantic", 0},
879 {"--pedantic-errors", "-pedantic-errors", 0},
880 {"--pipe", "-pipe", 0},
881 {"--prefix", "-B", "a"},
882 {"--preprocess", "-E", 0},
883 {"--print-search-dirs", "-print-search-dirs", 0},
884 {"--print-file-name", "-print-file-name=", "aj"},
885 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
886 {"--print-missing-file-dependencies", "-MG", 0},
887 {"--print-multi-lib", "-print-multi-lib", 0},
888 {"--print-multi-directory", "-print-multi-directory", 0},
889 {"--print-prog-name", "-print-prog-name=", "aj"},
890 {"--profile", "-p", 0},
891 {"--profile-blocks", "-a", 0},
892 {"--quiet", "-q", 0},
893 {"--save-temps", "-save-temps", 0},
894 {"--shared", "-shared", 0},
895 {"--silent", "-q", 0},
896 {"--specs", "-specs=", "aj"},
897 {"--static", "-static", 0},
898 {"--std", "-std=", "aj"},
899 {"--symbolic", "-symbolic", 0},
900 {"--target", "-b", "a"},
901 {"--time", "-time", 0},
902 {"--trace-includes", "-H", 0},
903 {"--traditional", "-traditional", 0},
904 {"--traditional-cpp", "-traditional-cpp", 0},
905 {"--trigraphs", "-trigraphs", 0},
906 {"--undefine-macro", "-U", "aj"},
907 {"--use-version", "-V", "a"},
908 {"--user-dependencies", "-MM", 0},
909 {"--verbose", "-v", 0},
910 {"--version", "-dumpversion", 0},
911 {"--warn-", "-W", "*j"},
912 {"--write-dependencies", "-MD", 0},
913 {"--write-user-dependencies", "-MMD", 0},
917 /* Translate the options described by *ARGCP and *ARGVP.
918 Make a new vector and store it back in *ARGVP,
919 and store its length in *ARGVC. */
922 translate_options (argcp
, argvp
)
928 const char **argv
= *argvp
;
930 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
934 newv
[newindex
++] = argv
[i
++];
938 /* Translate -- options. */
939 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
942 /* Find a mapping that applies to this option. */
943 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
945 size_t optlen
= strlen (option_map
[j
].name
);
946 size_t arglen
= strlen (argv
[i
]);
947 size_t complen
= arglen
> optlen
? optlen
: arglen
;
948 const char *arginfo
= option_map
[j
].arg_info
;
953 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
961 k
< sizeof (option_map
) / sizeof (option_map
[0]);
963 if (strlen (option_map
[k
].name
) >= arglen
964 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
966 error ("Ambiguous abbreviation %s", argv
[i
]);
970 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
976 /* If the option has an argument, accept that. */
977 if (argv
[i
][optlen
] == '=')
978 arg
= argv
[i
] + optlen
+ 1;
980 /* If this mapping requires extra text at end of name,
981 accept that as "argument". */
982 else if (index (arginfo
, '*') != 0)
983 arg
= argv
[i
] + optlen
;
985 /* Otherwise, extra text at end means mismatch.
986 Try other mappings. */
991 else if (index (arginfo
, '*') != 0)
993 error ("Incomplete `%s' option", option_map
[j
].name
);
997 /* Handle arguments. */
998 if (index (arginfo
, 'a') != 0)
1004 error ("Missing argument to `%s' option",
1005 option_map
[j
].name
);
1012 else if (index (arginfo
, '*') != 0)
1014 else if (index (arginfo
, 'o') == 0)
1017 error ("Extraneous argument to `%s' option",
1018 option_map
[j
].name
);
1022 /* Store the translation as one argv elt or as two. */
1023 if (arg
!= 0 && index (arginfo
, 'j') != 0)
1024 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1028 newv
[newindex
++] = option_map
[j
].equivalent
;
1029 newv
[newindex
++] = arg
;
1032 newv
[newindex
++] = option_map
[j
].equivalent
;
1040 /* Handle old-fashioned options--just copy them through,
1041 with their arguments. */
1042 else if (argv
[i
][0] == '-')
1044 const char *p
= argv
[i
] + 1;
1048 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1049 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1050 else if (WORD_SWITCH_TAKES_ARG (p
))
1051 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1052 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1055 else if (! strcmp (p
, "Xlinker"))
1058 /* Watch out for an option at the end of the command line that
1059 is missing arguments, and avoid skipping past the end of the
1061 if (nskip
+ i
> argc
)
1066 newv
[newindex
++] = argv
[i
++];
1071 /* Ordinary operands, or +e options. */
1072 newv
[newindex
++] = argv
[i
++];
1087 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1088 be considered whitespace. */
1089 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1091 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1095 while (*p
!= '\n') p
++;
1105 /* Structure to keep track of the specs that have been defined so far.
1106 These are accessed using %(specname) or %[specname] in a compiler
1111 /* The following 2 fields must be first */
1112 /* to allow EXTRA_SPECS to be initialized */
1113 char *name
; /* name of the spec. */
1114 char *ptr
; /* available ptr if no static pointer */
1116 /* The following fields are not initialized */
1117 /* by EXTRA_SPECS */
1118 char **ptr_spec
; /* pointer to the spec itself. */
1119 struct spec_list
*next
; /* Next spec in linked list. */
1120 int name_len
; /* length of the name */
1121 int alloc_p
; /* whether string was allocated */
1124 #define INIT_STATIC_SPEC(NAME,PTR) \
1125 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1127 /* List of statically defined specs */
1128 static struct spec_list static_specs
[] = {
1129 INIT_STATIC_SPEC ("asm", &asm_spec
),
1130 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1131 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1132 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1133 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1134 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1135 INIT_STATIC_SPEC ("link", &link_spec
),
1136 INIT_STATIC_SPEC ("lib", &lib_spec
),
1137 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1138 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1139 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1140 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1141 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1142 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1143 INIT_STATIC_SPEC ("version", &compiler_version
),
1144 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1145 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1146 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1147 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1148 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1151 #ifdef EXTRA_SPECS /* additional specs needed */
1152 /* Structure to keep track of just the first two args of a spec_list.
1153 That is all that the EXTRA_SPECS macro gives us. */
1160 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1161 static struct spec_list
* extra_specs
= (struct spec_list
*)0;
1164 /* List of dynamically allocates specs that have been defined so far. */
1166 static struct spec_list
*specs
= (struct spec_list
*)0;
1169 /* Initialize the specs lookup routines. */
1174 struct spec_list
*next
= (struct spec_list
*)0;
1175 struct spec_list
*sl
= (struct spec_list
*)0;
1179 return; /* already initialized */
1182 notice ("Using builtin specs.\n");
1185 extra_specs
= (struct spec_list
*)
1186 xcalloc (sizeof(struct spec_list
),
1187 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1189 for (i
= (sizeof(extra_specs_1
) / sizeof(extra_specs_1
[0])) - 1; i
>= 0; i
--)
1191 sl
= &extra_specs
[i
];
1192 sl
->name
= extra_specs_1
[i
].name
;
1193 sl
->ptr
= extra_specs_1
[i
].ptr
;
1195 sl
->name_len
= strlen (sl
->name
);
1196 sl
->ptr_spec
= &sl
->ptr
;
1201 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1203 sl
= &static_specs
[i
];
1212 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1213 removed; If the spec starts with a + then SPEC is added to the end of the
1217 set_spec (name
, spec
)
1221 struct spec_list
*sl
;
1223 int name_len
= strlen (name
);
1226 /* If this is the first call, initialize the statically allocated specs */
1229 struct spec_list
*next
= (struct spec_list
*)0;
1230 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1233 sl
= &static_specs
[i
];
1240 /* See if the spec already exists */
1241 for (sl
= specs
; sl
; sl
= sl
->next
)
1242 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1247 /* Not found - make it */
1248 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1249 sl
->name
= xstrdup (name
);
1250 sl
->name_len
= name_len
;
1251 sl
->ptr_spec
= &sl
->ptr
;
1253 *(sl
->ptr_spec
) = "";
1258 old_spec
= *(sl
->ptr_spec
);
1259 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1260 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1265 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1268 /* Free the old spec */
1269 if (old_spec
&& sl
->alloc_p
)
1275 /* Accumulate a command (program name and args), and run it. */
1277 /* Vector of pointers to arguments in the current line of specifications. */
1279 static char **argbuf
;
1281 /* Number of elements allocated in argbuf. */
1283 static int argbuf_length
;
1285 /* Number of elements in argbuf currently in use (containing args). */
1287 static int argbuf_index
;
1289 /* We want this on by default all the time now. */
1290 #define MKTEMP_EACH_FILE
1292 #ifdef MKTEMP_EACH_FILE
1294 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1297 static struct temp_name
{
1298 const char *suffix
; /* suffix associated with the code. */
1299 int length
; /* strlen (suffix). */
1300 int unique
; /* Indicates whether %g or %u/%U was used. */
1301 const char *filename
; /* associated filename. */
1302 int filename_length
; /* strlen (filename). */
1303 struct temp_name
*next
;
1308 /* Number of commands executed so far. */
1310 static int execution_count
;
1312 /* Number of commands that exited with a signal. */
1314 static int signal_count
;
1316 /* Name with which this program was invoked. */
1318 static const char *programname
;
1320 /* Structures to keep track of prefixes to try when looking for files. */
1324 char *prefix
; /* String to prepend to the path. */
1325 struct prefix_list
*next
; /* Next in linked list. */
1326 int require_machine_suffix
; /* Don't use without machine_suffix. */
1327 /* 2 means try both machine_suffix and just_machine_suffix. */
1328 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1333 struct prefix_list
*plist
; /* List of prefixes to try */
1334 int max_len
; /* Max length of a prefix in PLIST */
1335 const char *name
; /* Name of this list (used in config stuff) */
1338 /* List of prefixes to try when looking for executables. */
1340 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1342 /* List of prefixes to try when looking for startup (crt0) files. */
1344 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1346 /* List of prefixes to try when looking for include files. */
1348 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1350 /* Suffix to attach to directories searched for commands.
1351 This looks like `MACHINE/VERSION/'. */
1353 static const char *machine_suffix
= 0;
1355 /* Suffix to attach to directories searched for commands.
1356 This is just `MACHINE/'. */
1358 static const char *just_machine_suffix
= 0;
1360 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1362 static const char *gcc_exec_prefix
;
1364 /* Default prefixes to attach to command names. */
1366 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1367 #undef MD_EXEC_PREFIX
1368 #undef MD_STARTFILE_PREFIX
1369 #undef MD_STARTFILE_PREFIX_1
1372 #ifndef STANDARD_EXEC_PREFIX
1373 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1374 #endif /* !defined STANDARD_EXEC_PREFIX */
1376 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1377 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1378 #ifdef MD_EXEC_PREFIX
1379 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1382 #ifndef STANDARD_STARTFILE_PREFIX
1383 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1384 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1386 #ifdef MD_STARTFILE_PREFIX
1387 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1389 #ifdef MD_STARTFILE_PREFIX_1
1390 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1392 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1393 static const char *standard_startfile_prefix_1
= "/lib/";
1394 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1396 #ifndef TOOLDIR_BASE_PREFIX
1397 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1399 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1400 static const char *tooldir_prefix
;
1402 /* Subdirectory to use for locating libraries. Set by
1403 set_multilib_dir based on the compilation options. */
1405 static const char *multilib_dir
;
1407 /* Clear out the vector of arguments (after a command is executed). */
1415 /* Add one argument to the vector at the end.
1416 This is done when a space is seen or at the end of the line.
1417 If DELETE_ALWAYS is nonzero, the arg is a filename
1418 and the file should be deleted eventually.
1419 If DELETE_FAILURE is nonzero, the arg is a filename
1420 and the file should be deleted if this compilation fails. */
1423 store_arg (arg
, delete_always
, delete_failure
)
1425 int delete_always
, delete_failure
;
1427 if (argbuf_index
+ 1 == argbuf_length
)
1429 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1431 argbuf
[argbuf_index
++] = arg
;
1432 argbuf
[argbuf_index
] = 0;
1434 if (delete_always
|| delete_failure
)
1435 record_temp_file (arg
, delete_always
, delete_failure
);
1438 /* Read compilation specs from a file named FILENAME,
1439 replacing the default ones.
1441 A suffix which starts with `*' is a definition for
1442 one of the machine-specific sub-specs. The "suffix" should be
1443 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1444 The corresponding spec is stored in asm_spec, etc.,
1445 rather than in the `compilers' vector.
1447 Anything invalid in the file is a fatal error. */
1450 read_specs (filename
, main_p
)
1451 const char *filename
;
1456 struct stat statbuf
;
1461 notice ("Reading specs from %s\n", filename
);
1463 /* Open and stat the file. */
1464 desc
= open (filename
, O_RDONLY
, 0);
1466 pfatal_with_name (filename
);
1467 if (stat (filename
, &statbuf
) < 0)
1468 pfatal_with_name (filename
);
1470 /* Read contents of file into BUFFER. */
1471 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1472 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1474 pfatal_with_name (filename
);
1475 buffer
[readlen
] = 0;
1478 /* Scan BUFFER for specs, putting them in the vector. */
1484 char *in
, *out
, *p1
, *p2
, *p3
;
1486 /* Advance P in BUFFER to the next nonblank nocomment line. */
1487 p
= skip_whitespace (p
);
1491 /* Is this a special command that starts with '%'? */
1492 /* Don't allow this for the main specs file, since it would
1493 encourage people to overwrite it. */
1494 if (*p
== '%' && !main_p
)
1497 while (*p
&& *p
!= '\n')
1500 p
++; /* Skip '\n' */
1502 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1503 && (p1
[sizeof "%include" - 1] == ' '
1504 || p1
[sizeof "%include" - 1] == '\t'))
1508 p1
+= sizeof ("%include");
1509 while (*p1
== ' ' || *p1
== '\t')
1512 if (*p1
++ != '<' || p
[-2] != '>')
1513 fatal ("specs %%include syntax malformed after %ld characters",
1514 (long) (p1
- buffer
+ 1));
1517 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1518 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1521 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1522 && (p1
[sizeof "%include_noerr" - 1] == ' '
1523 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1527 p1
+= sizeof "%include_noerr";
1528 while (*p1
== ' ' || *p1
== '\t') p1
++;
1530 if (*p1
++ != '<' || p
[-2] != '>')
1531 fatal ("specs %%include syntax malformed after %ld characters",
1532 (long) (p1
- buffer
+ 1));
1535 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1537 read_specs (new_filename
, FALSE
);
1538 else if (verbose_flag
)
1539 notice ("Could not find specs file %s\n", p1
);
1542 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1543 && (p1
[sizeof "%rename" - 1] == ' '
1544 || p1
[sizeof "%rename" - 1] == '\t'))
1547 struct spec_list
*sl
;
1549 /* Get original name */
1550 p1
+= sizeof "%rename";
1551 while (*p1
== ' ' || *p1
== '\t')
1554 if (! ISALPHA ((unsigned char)*p1
))
1555 fatal ("specs %%rename syntax malformed after %ld characters",
1556 (long) (p1
- buffer
));
1559 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1562 if (*p2
!= ' ' && *p2
!= '\t')
1563 fatal ("specs %%rename syntax malformed after %ld characters",
1564 (long) (p2
- buffer
));
1568 while (*p2
== ' ' || *p2
== '\t')
1571 if (! ISALPHA ((unsigned char)*p2
))
1572 fatal ("specs %%rename syntax malformed after %ld characters",
1573 (long) (p2
- buffer
));
1575 /* Get new spec name */
1577 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1581 fatal ("specs %%rename syntax malformed after %ld characters",
1582 (long) (p3
- buffer
));
1585 for (sl
= specs
; sl
; sl
= sl
->next
)
1586 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1590 fatal ("specs %s spec was not found to be renamed", p1
);
1592 if (strcmp (p1
, p2
) == 0)
1597 notice ("rename spec %s to %s\n", p1
, p2
);
1599 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1603 set_spec (p2
, *(sl
->ptr_spec
));
1605 free (*(sl
->ptr_spec
));
1607 *(sl
->ptr_spec
) = "";
1612 fatal ("specs unknown %% command after %ld characters",
1613 (long) (p1
- buffer
));
1616 /* Find the colon that should end the suffix. */
1618 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1621 /* The colon shouldn't be missing. */
1623 fatal ("specs file malformed after %ld characters",
1624 (long) (p1
- buffer
));
1626 /* Skip back over trailing whitespace. */
1628 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1631 /* Copy the suffix to a string. */
1632 suffix
= save_string (p
, p2
- p
);
1633 /* Find the next line. */
1634 p
= skip_whitespace (p1
+ 1);
1636 fatal ("specs file malformed after %ld characters",
1637 (long) (p
- buffer
));
1640 /* Find next blank line or end of string. */
1641 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1644 /* Specs end at the blank line and do not include the newline. */
1645 spec
= save_string (p
, p1
- p
);
1648 /* Delete backslash-newline sequences from the spec. */
1653 if (in
[0] == '\\' && in
[1] == '\n')
1655 else if (in
[0] == '#')
1656 while (*in
&& *in
!= '\n')
1664 if (suffix
[0] == '*')
1666 if (! strcmp (suffix
, "*link_command"))
1667 link_command_spec
= spec
;
1669 set_spec (suffix
+ 1, spec
);
1673 /* Add this pair to the vector. */
1675 = ((struct compiler
*)
1676 xrealloc (compilers
,
1677 (n_compilers
+ 2) * sizeof (struct compiler
)));
1679 compilers
[n_compilers
].suffix
= suffix
;
1680 memset (compilers
[n_compilers
].spec
, 0,
1681 sizeof compilers
[n_compilers
].spec
);
1682 compilers
[n_compilers
].spec
[0] = spec
;
1684 memset (&compilers
[n_compilers
], 0, sizeof compilers
[n_compilers
]);
1688 link_command_spec
= spec
;
1691 if (link_command_spec
== 0)
1692 fatal ("spec file has no spec for linking");
1695 /* Record the names of temporary files we tell compilers to write,
1696 and delete them at the end of the run. */
1698 /* This is the common prefix we use to make temp file names.
1699 It is chosen once for each run of this program.
1700 It is substituted into a spec by %g.
1701 Thus, all temp file names contain this prefix.
1702 In practice, all temp file names start with this prefix.
1704 This prefix comes from the envvar TMPDIR if it is defined;
1705 otherwise, from the P_tmpdir macro if that is defined;
1706 otherwise, in /usr/tmp or /tmp;
1707 or finally the current directory if all else fails. */
1709 static const char *temp_filename
;
1711 /* Length of the prefix. */
1713 static int temp_filename_length
;
1715 /* Define the list of temporary files to delete. */
1720 struct temp_file
*next
;
1723 /* Queue of files to delete on success or failure of compilation. */
1724 static struct temp_file
*always_delete_queue
;
1725 /* Queue of files to delete on failure of compilation. */
1726 static struct temp_file
*failure_delete_queue
;
1728 /* Record FILENAME as a file to be deleted automatically.
1729 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1730 otherwise delete it in any case.
1731 FAIL_DELETE nonzero means delete it if a compilation step fails;
1732 otherwise delete it in any case. */
1735 record_temp_file (filename
, always_delete
, fail_delete
)
1736 const char *filename
;
1740 register char * const name
= xstrdup (filename
);
1744 register struct temp_file
*temp
;
1745 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1746 if (! strcmp (name
, temp
->name
))
1749 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1750 temp
->next
= always_delete_queue
;
1752 always_delete_queue
= temp
;
1759 register struct temp_file
*temp
;
1760 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1761 if (! strcmp (name
, temp
->name
))
1764 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1765 temp
->next
= failure_delete_queue
;
1767 failure_delete_queue
= temp
;
1773 /* Delete all the temporary files whose names we previously recorded. */
1776 delete_if_ordinary (name
)
1783 printf ("Delete %s? (y or n) ", name
);
1787 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1790 if (i
== 'y' || i
== 'Y')
1792 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1793 if (unlink (name
) < 0)
1795 perror_with_name (name
);
1799 delete_temp_files ()
1801 register struct temp_file
*temp
;
1803 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1804 delete_if_ordinary (temp
->name
);
1805 always_delete_queue
= 0;
1808 /* Delete all the files to be deleted on error. */
1811 delete_failure_queue ()
1813 register struct temp_file
*temp
;
1815 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1816 delete_if_ordinary (temp
->name
);
1820 clear_failure_queue ()
1822 failure_delete_queue
= 0;
1825 /* Routine to add variables to the environment. We do this to pass
1826 the pathname of the gcc driver, and the directories search to the
1827 collect2 program, which is being run as ld. This way, we can be
1828 sure of executing the right compiler when collect2 wants to build
1829 constructors and destructors. Since the environment variables we
1830 use come from an obstack, we don't have to worry about allocating
1839 #ifndef VMS /* nor about VMS */
1841 extern char **environ
;
1842 char **old_environ
= environ
;
1846 int str_len
= strlen (str
);
1850 while ((ch
= *p
++) != '\0' && ch
!= '=')
1856 /* Search for replacing an existing environment variable, and
1857 count the number of total environment variables. */
1858 for (envp
= old_environ
; *envp
; envp
++)
1861 if (!strncmp (str
, *envp
, name_len
))
1868 /* Add a new environment variable */
1869 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1871 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1872 sizeof (char *) * (num_envs
+1));
1877 #endif /* HAVE_PUTENV */
1880 /* Build a list of search directories from PATHS.
1881 PREFIX is a string to prepend to the list.
1882 If CHECK_DIR_P is non-zero we ensure the directory exists.
1883 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1884 It is also used by the --print-search-dirs flag. */
1887 build_search_list (paths
, prefix
, check_dir_p
)
1888 struct path_prefix
*paths
;
1892 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1894 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1895 int first_time
= TRUE
;
1896 struct prefix_list
*pprefix
;
1898 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1900 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1902 int len
= strlen (pprefix
->prefix
);
1906 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1909 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1912 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1913 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1916 if (just_machine_suffix
1917 && pprefix
->require_machine_suffix
== 2
1919 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1922 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1925 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1926 obstack_grow (&collect_obstack
, just_machine_suffix
,
1930 if (! pprefix
->require_machine_suffix
)
1933 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1936 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1940 obstack_1grow (&collect_obstack
, '\0');
1941 return obstack_finish (&collect_obstack
);
1944 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1948 putenv_from_prefixes (paths
, env_var
)
1949 struct path_prefix
*paths
;
1950 const char *env_var
;
1952 putenv (build_search_list (paths
, env_var
, 1));
1955 /* Check whether NAME can be accessed in MODE. This is like access,
1956 except that it never considers directories to be executable. */
1959 access_check (name
, mode
)
1967 if (stat (name
, &st
) < 0
1968 || S_ISDIR (st
.st_mode
))
1972 return access (name
, mode
);
1975 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1976 access to check permissions.
1977 Return 0 if not found, otherwise return its name, allocated with malloc. */
1980 find_a_file (pprefix
, name
, mode
)
1981 struct path_prefix
*pprefix
;
1986 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1987 struct prefix_list
*pl
;
1988 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1990 #ifdef DEFAULT_ASSEMBLER
1991 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0)
1992 return xstrdup (DEFAULT_ASSEMBLER
);
1995 #ifdef DEFAULT_LINKER
1996 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0)
1997 return xstrdup (DEFAULT_LINKER
);
2001 len
+= strlen (machine_suffix
);
2003 temp
= xmalloc (len
);
2005 /* Determine the filename to execute (special case for absolute paths). */
2007 if (IS_DIR_SEPARATOR (*name
)
2008 #ifdef HAVE_DOS_BASED_FILESYSTEM
2009 /* Check for disk name on MS-DOS-based systems. */
2010 || (name
[0] && name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2014 if (access (name
, mode
) == 0)
2016 strcpy (temp
, name
);
2021 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2025 /* Some systems have a suffix for executable files.
2026 So try appending that first. */
2027 if (file_suffix
[0] != 0)
2029 strcpy (temp
, pl
->prefix
);
2030 strcat (temp
, machine_suffix
);
2031 strcat (temp
, name
);
2032 strcat (temp
, file_suffix
);
2033 if (access_check (temp
, mode
) == 0)
2035 if (pl
->used_flag_ptr
!= 0)
2036 *pl
->used_flag_ptr
= 1;
2041 /* Now try just the name. */
2042 strcpy (temp
, pl
->prefix
);
2043 strcat (temp
, machine_suffix
);
2044 strcat (temp
, name
);
2045 if (access_check (temp
, mode
) == 0)
2047 if (pl
->used_flag_ptr
!= 0)
2048 *pl
->used_flag_ptr
= 1;
2053 /* Certain prefixes are tried with just the machine type,
2054 not the version. This is used for finding as, ld, etc. */
2055 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2057 /* Some systems have a suffix for executable files.
2058 So try appending that first. */
2059 if (file_suffix
[0] != 0)
2061 strcpy (temp
, pl
->prefix
);
2062 strcat (temp
, just_machine_suffix
);
2063 strcat (temp
, name
);
2064 strcat (temp
, file_suffix
);
2065 if (access_check (temp
, mode
) == 0)
2067 if (pl
->used_flag_ptr
!= 0)
2068 *pl
->used_flag_ptr
= 1;
2073 strcpy (temp
, pl
->prefix
);
2074 strcat (temp
, just_machine_suffix
);
2075 strcat (temp
, name
);
2076 if (access_check (temp
, mode
) == 0)
2078 if (pl
->used_flag_ptr
!= 0)
2079 *pl
->used_flag_ptr
= 1;
2084 /* Certain prefixes can't be used without the machine suffix
2085 when the machine or version is explicitly specified. */
2086 if (! pl
->require_machine_suffix
)
2088 /* Some systems have a suffix for executable files.
2089 So try appending that first. */
2090 if (file_suffix
[0] != 0)
2092 strcpy (temp
, pl
->prefix
);
2093 strcat (temp
, name
);
2094 strcat (temp
, file_suffix
);
2095 if (access_check (temp
, mode
) == 0)
2097 if (pl
->used_flag_ptr
!= 0)
2098 *pl
->used_flag_ptr
= 1;
2103 strcpy (temp
, pl
->prefix
);
2104 strcat (temp
, name
);
2105 if (access_check (temp
, mode
) == 0)
2107 if (pl
->used_flag_ptr
!= 0)
2108 *pl
->used_flag_ptr
= 1;
2118 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2119 at the start of the list, otherwise it goes at the end.
2121 If WARN is nonzero, we will warn if no file is found
2122 through this prefix. WARN should point to an int
2123 which will be set to 1 if this entry is used.
2125 COMPONENT is the value to be passed to update_path.
2127 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2128 the complete value of machine_suffix.
2129 2 means try both machine_suffix and just_machine_suffix. */
2132 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2133 struct path_prefix
*pprefix
;
2135 const char *component
;
2137 int require_machine_suffix
;
2140 struct prefix_list
*pl
, **prev
;
2143 if (! first
&& pprefix
->plist
)
2145 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2150 prev
= &pprefix
->plist
;
2152 /* Keep track of the longest prefix */
2154 prefix
= update_path (prefix
, component
);
2155 len
= strlen (prefix
);
2156 if (len
> pprefix
->max_len
)
2157 pprefix
->max_len
= len
;
2159 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2160 pl
->prefix
= save_string (prefix
, len
);
2161 pl
->require_machine_suffix
= require_machine_suffix
;
2162 pl
->used_flag_ptr
= warn
;
2169 pl
->next
= (struct prefix_list
*) 0;
2173 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2176 unused_prefix_warnings (pprefix
)
2177 struct path_prefix
*pprefix
;
2179 struct prefix_list
*pl
= pprefix
->plist
;
2183 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2185 if (pl
->require_machine_suffix
&& machine_suffix
)
2186 error ("file path prefix `%s%s' never used", pl
->prefix
,
2189 error ("file path prefix `%s' never used", pl
->prefix
);
2191 /* Prevent duplicate warnings. */
2192 *pl
->used_flag_ptr
= 1;
2200 /* Execute the command specified by the arguments on the current line of spec.
2201 When using pipes, this includes several piped-together commands
2202 with `|' between them.
2204 Return 0 if successful, -1 if failed. */
2210 int n_commands
; /* # of command. */
2214 const char *prog
; /* program name. */
2215 char **argv
; /* vector of args. */
2216 int pid
; /* pid of process for this command. */
2219 struct command
*commands
; /* each command buffer with above info. */
2221 /* Count # of piped commands. */
2222 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2223 if (strcmp (argbuf
[i
], "|") == 0)
2226 /* Get storage for each command. */
2228 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2230 /* Split argbuf into its separate piped processes,
2231 and record info about each one.
2232 Also search for the programs that are to be run. */
2234 commands
[0].prog
= argbuf
[0]; /* first command. */
2235 commands
[0].argv
= &argbuf
[0];
2236 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2239 commands
[0].argv
[0] = string
;
2241 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2242 if (strcmp (argbuf
[i
], "|") == 0)
2243 { /* each command. */
2244 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2245 fatal ("-pipe not supported");
2247 argbuf
[i
] = 0; /* termination of command args. */
2248 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2249 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2250 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2252 commands
[n_commands
].argv
[0] = string
;
2256 argbuf
[argbuf_index
] = 0;
2258 /* If -v, print what we are about to do, and maybe query. */
2262 /* For help listings, put a blank line between sub-processes. */
2263 if (print_help_list
)
2264 fputc ('\n', stderr
);
2266 /* Print each piped command as a separate line. */
2267 for (i
= 0; i
< n_commands
; i
++)
2271 for (j
= commands
[i
].argv
; *j
; j
++)
2272 fprintf (stderr
, " %s", *j
);
2274 /* Print a pipe symbol after all but the last command. */
2275 if (i
+ 1 != n_commands
)
2276 fprintf (stderr
, " |");
2277 fprintf (stderr
, "\n");
2281 notice ("\nGo ahead? (y or n) ");
2285 while (getchar () != '\n')
2288 if (i
!= 'y' && i
!= 'Y')
2293 /* Run each piped subprocess. */
2295 for (i
= 0; i
< n_commands
; i
++)
2297 char *errmsg_fmt
, *errmsg_arg
;
2298 char *string
= commands
[i
].argv
[0];
2300 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2301 programname
, temp_filename
,
2302 &errmsg_fmt
, &errmsg_arg
,
2303 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2304 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2305 | (string
== commands
[i
].prog
2306 ? PEXECUTE_SEARCH
: 0)
2307 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2309 if (commands
[i
].pid
== -1)
2310 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2312 if (string
!= commands
[i
].prog
)
2318 /* Wait for all the subprocesses to finish.
2319 We don't care what order they finish in;
2320 we know that N_COMMANDS waits will get them all.
2321 Ignore subprocesses that we don't know about,
2322 since they can be spawned by the process that exec'ed us. */
2326 #ifdef HAVE_GETRUSAGE
2331 for (i
= 0; i
< n_commands
; )
2337 pid
= pwait (commands
[i
].pid
, &status
, 0);
2341 #ifdef HAVE_GETRUSAGE
2344 /* getrusage returns the total resource usage of all children
2345 up to now. Copy the previous values into prus, get the
2346 current statistics, then take the difference. */
2349 getrusage (RUSAGE_CHILDREN
, &rus
);
2350 d
.tv_sec
= rus
.ru_utime
.tv_sec
- prus
.ru_utime
.tv_sec
;
2351 d
.tv_usec
= rus
.ru_utime
.tv_usec
- prus
.ru_utime
.tv_usec
;
2352 ut
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2354 d
.tv_sec
= rus
.ru_stime
.tv_sec
- prus
.ru_stime
.tv_sec
;
2355 d
.tv_usec
= rus
.ru_stime
.tv_usec
- prus
.ru_stime
.tv_usec
;
2356 st
= (double)d
.tv_sec
+ (double)d
.tv_usec
/ 1.0e6
;
2360 for (j
= 0; j
< n_commands
; j
++)
2361 if (commands
[j
].pid
== pid
)
2366 if (WIFSIGNALED (status
))
2368 fatal ("Internal compiler error: program %s got fatal signal %d",
2369 commands
[j
].prog
, WTERMSIG (status
));
2373 else if (WIFEXITED (status
)
2374 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2376 if (WEXITSTATUS (status
) > greatest_status
)
2377 greatest_status
= WEXITSTATUS (status
);
2381 #ifdef HAVE_GETRUSAGE
2382 if (report_times
&& ut
+ st
!= 0)
2383 notice ("# %s %.2f %.2f\n", commands
[j
].prog
, ut
, st
);
2392 /* Find all the switches given to us
2393 and make a vector describing them.
2394 The elements of the vector are strings, one per switch given.
2395 If a switch uses following arguments, then the `part1' field
2396 is the switch itself and the `args' field
2397 is a null-terminated vector containing the following arguments.
2398 The `live_cond' field is 1 if the switch is true in a conditional spec,
2399 -1 if false (overridden by a later switch), and is initialized to zero.
2400 The `validated' field is nonzero if any spec has looked at this switch;
2401 if it remains zero at the end of the run, it must be meaningless. */
2411 static struct switchstr
*switches
;
2413 static int n_switches
;
2418 const char *language
;
2421 /* Also a vector of input files specified. */
2423 static struct infile
*infiles
;
2425 static int n_infiles
;
2427 /* This counts the number of libraries added by lang_specific_driver, so that
2428 we can tell if there were any user supplied any files or libraries. */
2430 static int added_libraries
;
2432 /* And a vector of corresponding output files is made up later. */
2434 static const char **outfiles
;
2436 /* Used to track if none of the -B paths are used. */
2439 /* Used to track if standard path isn't used and -b or -V is specified. */
2440 static int warn_std
;
2442 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2443 static int *warn_std_ptr
= 0;
2446 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2448 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2449 is true if we should look for an executable suffix as well. */
2452 convert_filename (name
, do_exe
)
2462 len
= strlen (name
);
2464 #ifdef HAVE_OBJECT_SUFFIX
2465 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2467 && name
[len
- 2] == '.'
2468 && name
[len
- 1] == 'o')
2470 obstack_grow (&obstack
, name
, len
- 2);
2471 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2472 name
= obstack_finish (&obstack
);
2476 #ifdef HAVE_EXECUTABLE_SUFFIX
2477 /* If there is no filetype, make it the executable suffix (which includes
2478 the "."). But don't get confused if we have just "-o". */
2479 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2482 for (i
= len
- 1; i
>= 0; i
--)
2483 if (IS_DIR_SEPARATOR (name
[i
]))
2486 for (i
++; i
< len
; i
++)
2490 obstack_grow (&obstack
, name
, len
);
2491 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2492 name
= obstack_finish (&obstack
);
2499 /* Display the command line switches accepted by gcc. */
2503 printf ("Usage: %s [options] file...\n", programname
);
2504 printf ("Options:\n");
2506 printf (" -pass-exit-codes Exit with highest error code from a phase\n");
2507 printf (" --help Display this information\n");
2509 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2510 printf (" -dumpspecs Display all of the built in spec strings\n");
2511 printf (" -dumpversion Display the version of the compiler\n");
2512 printf (" -dumpmachine Display the compiler's target processor\n");
2513 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2514 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2515 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2516 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2517 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2518 printf (" -print-multi-lib Display the mapping between command line options and\n");
2519 printf (" multiple library search directories\n");
2520 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2521 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2522 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2523 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2524 printf (" -save-temps Do not delete intermediate files\n");
2525 printf (" -pipe Use pipes rather than intermediate files\n");
2526 printf (" -time Time the execution of each subprocess\n");
2527 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2528 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2529 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2530 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2531 printf (" -V <version> Run gcc version number <version>, if installed\n");
2532 printf (" -v Display the programs invoked by the compiler\n");
2533 printf (" -E Preprocess only; do not compile, assemble or link\n");
2534 printf (" -S Compile only; do not assemble or link\n");
2535 printf (" -c Compile and assemble, but do not link\n");
2536 printf (" -o <file> Place the output into <file>\n");
2537 printf (" -x <language> Specify the language of the following input files\n");
2538 printf (" Permissable languages include: c c++ assembler none\n");
2539 printf (" 'none' means revert to the default behaviour of\n");
2540 printf (" guessing the language based on the file's extension\n");
2542 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2543 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2545 printf ("on to these processes the -W<letter> options must be used.\n");
2547 /* The rest of the options are displayed by invocations of the various
2552 add_preprocessor_option (option
, len
)
2553 const char * option
;
2556 n_preprocessor_options
++;
2558 if (! preprocessor_options
)
2559 preprocessor_options
2560 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2562 preprocessor_options
2563 = (char **) xrealloc (preprocessor_options
,
2564 n_preprocessor_options
* sizeof (char *));
2566 preprocessor_options
[n_preprocessor_options
- 1] =
2567 save_string (option
, len
);
2571 add_assembler_option (option
, len
)
2572 const char * option
;
2575 n_assembler_options
++;
2577 if (! assembler_options
)
2579 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2582 = (char **) xrealloc (assembler_options
,
2583 n_assembler_options
* sizeof (char *));
2585 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2589 add_linker_option (option
, len
)
2590 const char * option
;
2595 if (! linker_options
)
2597 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2600 = (char **) xrealloc (linker_options
,
2601 n_linker_options
* sizeof (char *));
2603 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2606 /* Create the vector `switches' and its contents.
2607 Store its length in `n_switches'. */
2610 process_command (argc
, argv
)
2617 char *spec_lang
= 0;
2618 int last_language_n_infiles
;
2621 int lang_n_infiles
= 0;
2623 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2627 added_libraries
= 0;
2629 /* Figure compiler version from version string. */
2631 compiler_version
= temp1
= xstrdup (version_string
);
2633 for (; *temp1
; ++temp1
)
2642 /* Set up the default search paths. */
2644 if (gcc_exec_prefix
)
2646 int len
= strlen (gcc_exec_prefix
);
2647 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2648 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
2650 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2651 if (IS_DIR_SEPARATOR (*temp
)
2652 && strncmp (temp
+1, "lib", 3) == 0
2653 && IS_DIR_SEPARATOR (temp
[4])
2654 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2655 len
-= sizeof ("/lib/gcc-lib/") - 1;
2658 set_std_prefix (gcc_exec_prefix
, len
);
2659 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2660 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2663 /* COMPILER_PATH and LIBRARY_PATH have values
2664 that are lists of directory names with colons. */
2666 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2669 const char *startp
, *endp
;
2670 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2672 startp
= endp
= temp
;
2675 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2677 strncpy (nstore
, startp
, endp
-startp
);
2679 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2680 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2682 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2683 nstore
[endp
-startp
+1] = 0;
2686 nstore
[endp
-startp
] = 0;
2687 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2688 add_prefix (&include_prefixes
,
2689 concat (nstore
, "include", NULL_PTR
),
2693 endp
= startp
= endp
+ 1;
2700 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2701 if (temp
&& *cross_compile
== '0')
2703 const char *startp
, *endp
;
2704 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2706 startp
= endp
= temp
;
2709 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2711 strncpy (nstore
, startp
, endp
-startp
);
2713 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2714 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2716 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2717 nstore
[endp
-startp
+1] = 0;
2720 nstore
[endp
-startp
] = 0;
2721 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2725 endp
= startp
= endp
+ 1;
2732 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2733 GET_ENV_PATH_LIST (temp
, "LPATH");
2734 if (temp
&& *cross_compile
== '0')
2736 const char *startp
, *endp
;
2737 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2739 startp
= endp
= temp
;
2742 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2744 strncpy (nstore
, startp
, endp
-startp
);
2746 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2747 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2749 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2750 nstore
[endp
-startp
+1] = 0;
2753 nstore
[endp
-startp
] = 0;
2754 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2758 endp
= startp
= endp
+ 1;
2765 /* Convert new-style -- options to old-style. */
2766 translate_options (&argc
, &argv
);
2768 /* Do language-specific adjustment/addition of flags. */
2769 lang_specific_driver (&argc
, &argv
, &added_libraries
);
2771 /* Scan argv twice. Here, the first time, just count how many switches
2772 there will be in their vector, and how many input files in theirs.
2773 Here we also parse the switches that cc itself uses (e.g. -v). */
2775 for (i
= 1; i
< argc
; i
++)
2777 if (! strcmp (argv
[i
], "-dumpspecs"))
2779 struct spec_list
*sl
;
2781 for (sl
= specs
; sl
; sl
= sl
->next
)
2782 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2783 if (link_command_spec
)
2784 printf ("*link_command:\n%s\n\n", link_command_spec
);
2787 else if (! strcmp (argv
[i
], "-dumpversion"))
2789 printf ("%s\n", spec_version
);
2792 else if (! strcmp (argv
[i
], "-dumpmachine"))
2794 printf ("%s\n", spec_machine
);
2797 else if (strcmp (argv
[i
], "-fhelp") == 0)
2799 /* translate_options () has turned --help into -fhelp. */
2800 print_help_list
= 1;
2802 /* We will be passing a dummy file on to the sub-processes. */
2806 add_preprocessor_option ("--help", 6);
2807 add_assembler_option ("--help", 6);
2808 add_linker_option ("--help", 6);
2810 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
2812 pass_exit_codes
= 1;
2815 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2816 print_search_dirs
= 1;
2817 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2818 print_file_name
= "libgcc.a";
2819 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2820 print_file_name
= argv
[i
] + 17;
2821 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2822 print_prog_name
= argv
[i
] + 17;
2823 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2824 print_multi_lib
= 1;
2825 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2826 print_multi_directory
= 1;
2827 else if (! strncmp (argv
[i
], "-Wa,", 4))
2830 /* Pass the rest of this option to the assembler. */
2832 /* Split the argument at commas. */
2834 for (j
= 4; argv
[i
][j
]; j
++)
2835 if (argv
[i
][j
] == ',')
2837 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2841 /* Record the part after the last comma. */
2842 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2844 else if (! strncmp (argv
[i
], "-Wp,", 4))
2847 /* Pass the rest of this option to the preprocessor. */
2849 /* Split the argument at commas. */
2851 for (j
= 4; argv
[i
][j
]; j
++)
2852 if (argv
[i
][j
] == ',')
2854 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2858 /* Record the part after the last comma. */
2859 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2861 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2862 /* The +e options to the C++ front-end. */
2864 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2867 /* Split the argument at commas. */
2868 for (j
= 3; argv
[i
][j
]; j
++)
2869 n_infiles
+= (argv
[i
][j
] == ',');
2871 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2874 fatal ("argument to `-Xlinker' is missing");
2879 else if (strncmp (argv
[i
], "-l", 2) == 0)
2881 else if (strcmp (argv
[i
], "-save-temps") == 0)
2883 save_temps_flag
= 1;
2886 else if (strcmp (argv
[i
], "-specs") == 0)
2888 struct user_specs
*user
= (struct user_specs
*)
2889 xmalloc (sizeof (struct user_specs
));
2891 fatal ("argument to `-specs' is missing");
2893 user
->next
= (struct user_specs
*)0;
2894 user
->filename
= argv
[i
];
2895 if (user_specs_tail
)
2896 user_specs_tail
->next
= user
;
2898 user_specs_head
= user
;
2899 user_specs_tail
= user
;
2901 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2903 struct user_specs
*user
= (struct user_specs
*)
2904 xmalloc (sizeof (struct user_specs
));
2905 if (strlen (argv
[i
]) == 7)
2906 fatal ("argument to `-specs=' is missing");
2908 user
->next
= (struct user_specs
*)0;
2909 user
->filename
= argv
[i
]+7;
2910 if (user_specs_tail
)
2911 user_specs_tail
->next
= user
;
2913 user_specs_head
= user
;
2914 user_specs_tail
= user
;
2916 else if (strcmp (argv
[i
], "-time") == 0)
2918 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2920 register char *p
= &argv
[i
][1];
2921 register int c
= *p
;
2927 if (p
[1] == 0 && i
+ 1 == argc
)
2928 fatal ("argument to `-b' is missing");
2930 spec_machine
= argv
[++i
];
2932 spec_machine
= p
+ 1;
2934 warn_std_ptr
= &warn_std
;
2940 if (p
[1] == 0 && i
+ 1 == argc
)
2941 fatal ("argument to `-B' is missing");
2946 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2947 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2949 add_prefix (&include_prefixes
, concat (value
, "include",
2951 NULL_PTR
, 1, 0, NULL_PTR
);
2953 /* As a kludge, if the arg is "[foo/]stageN/", just add
2954 "[foo/]include" to the include prefix. */
2956 int len
= strlen (value
);
2959 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
2960 && strncmp (value
+ len
- 7, "stage", 5) == 0
2961 && ISDIGIT (value
[len
- 2])
2962 && (IS_DIR_SEPARATOR (value
[len
- 1])))
2965 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2969 char *string
= xmalloc (len
+ 1);
2970 strncpy (string
, value
, len
-7);
2971 strcpy (string
+len
-7, "include");
2972 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2981 case 'v': /* Print our subcommands and print versions. */
2983 /* If they do anything other than exactly `-v', don't set
2984 verbose_flag; rather, continue on to give the error. */
2992 if (p
[1] == 0 && i
+ 1 == argc
)
2993 fatal ("argument to `-V' is missing");
2995 spec_version
= argv
[++i
];
2997 spec_version
= p
+ 1;
2998 compiler_version
= spec_version
;
2999 warn_std_ptr
= &warn_std
;
3001 /* Validate the version number. Use the same checks
3002 done when inserting it into a spec.
3004 The format of the version string is
3005 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3007 const char *v
= compiler_version
;
3009 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3010 while (! ISDIGIT (*v
))
3013 if (v
> compiler_version
&& v
[-1] != '-')
3014 fatal ("invalid version number format");
3016 /* Set V after the first period. */
3017 while (ISDIGIT (*v
))
3021 fatal ("invalid version number format");
3024 while (ISDIGIT (*v
))
3027 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
3028 fatal ("invalid version number format");
3044 #if defined(HAVE_EXECUTABLE_SUFFIX)
3049 /* Forward scan, just in case -S or -c is specified
3056 if (argv
[j
][0] == '-')
3058 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3064 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3065 j
+= skip
- (argv
[j
][2] != 0);
3066 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3073 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3075 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3077 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3085 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3086 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3087 else if (WORD_SWITCH_TAKES_ARG (p
))
3088 i
+= WORD_SWITCH_TAKES_ARG (p
);
3098 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3099 fatal ("cannot specify -o with -c or -S and multiple compilations");
3101 /* Set up the search paths before we go looking for config files. */
3103 /* These come before the md prefixes so that we will find gcc's subcommands
3104 (such as cpp) rather than those of the host system. */
3105 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3106 as well as trying the machine and the version. */
3108 add_prefix (&exec_prefixes
, standard_exec_prefix
, "GCC",
3109 0, 1, warn_std_ptr
);
3110 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3111 0, 2, warn_std_ptr
);
3112 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3113 0, 2, warn_std_ptr
);
3116 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3117 0, 1, warn_std_ptr
);
3118 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3119 0, 1, warn_std_ptr
);
3121 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3122 dir_separator_str
, NULL_PTR
);
3124 /* If tooldir is relative, base it on exec_prefixes. A relative
3125 tooldir lets us move the installed tree as a unit.
3127 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3128 directories, so that we can search both the user specified directory
3129 and the standard place. */
3131 if (!IS_DIR_SEPARATOR (*tooldir_prefix
))
3133 if (gcc_exec_prefix
)
3135 char *gcc_exec_tooldir_prefix
3136 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3137 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3139 add_prefix (&exec_prefixes
,
3140 concat (gcc_exec_tooldir_prefix
, "bin",
3141 dir_separator_str
, NULL_PTR
),
3142 NULL_PTR
, 0, 0, NULL_PTR
);
3143 add_prefix (&startfile_prefixes
,
3144 concat (gcc_exec_tooldir_prefix
, "lib",
3145 dir_separator_str
, NULL_PTR
),
3146 NULL_PTR
, 0, 0, NULL_PTR
);
3149 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3150 dir_separator_str
, spec_version
,
3151 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3154 add_prefix (&exec_prefixes
,
3155 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3156 "BINUTILS", 0, 0, NULL_PTR
);
3157 add_prefix (&startfile_prefixes
,
3158 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3159 "BINUTILS", 0, 0, NULL_PTR
);
3161 /* More prefixes are enabled in main, after we read the specs file
3162 and determine whether this is cross-compilation or not. */
3165 /* Then create the space for the vectors and scan again. */
3167 switches
= ((struct switchstr
*)
3168 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3169 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3172 last_language_n_infiles
= -1;
3174 /* This, time, copy the text of each switch and store a pointer
3175 to the copy in the vector of switches.
3176 Store all the infiles in their vector. */
3178 for (i
= 1; i
< argc
; i
++)
3180 /* Just skip the switches that were handled by the preceding loop. */
3181 if (! strncmp (argv
[i
], "-Wa,", 4))
3183 else if (! strncmp (argv
[i
], "-Wp,", 4))
3185 else if (! strcmp (argv
[i
], "-pass-exit-codes"))
3187 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3189 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3191 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3193 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3195 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3197 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3199 else if (strcmp (argv
[i
], "-fhelp") == 0)
3203 /* Create a dummy input file, so that we can pass --help on to
3204 the various sub-processes. */
3205 infiles
[n_infiles
].language
= "c";
3206 infiles
[n_infiles
++].name
= "help-dummy";
3208 /* Preserve the --help switch so that it can be caught by the
3210 switches
[n_switches
].part1
= "--help";
3211 switches
[n_switches
].args
= 0;
3212 switches
[n_switches
].live_cond
= 0;
3213 switches
[n_switches
].validated
= 0;
3218 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3220 /* Compensate for the +e options to the C++ front-end;
3221 they're there simply for cfront call-compatibility. We do
3222 some magic in default_compilers to pass them down properly.
3223 Note we deliberately start at the `+' here, to avoid passing
3224 -e0 or -e1 down into the linker. */
3225 switches
[n_switches
].part1
= &argv
[i
][0];
3226 switches
[n_switches
].args
= 0;
3227 switches
[n_switches
].live_cond
= 0;
3228 switches
[n_switches
].validated
= 0;
3231 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3234 /* Split the argument at commas. */
3236 for (j
= 4; argv
[i
][j
]; j
++)
3237 if (argv
[i
][j
] == ',')
3239 infiles
[n_infiles
].language
= "*";
3240 infiles
[n_infiles
++].name
3241 = save_string (argv
[i
] + prev
, j
- prev
);
3244 /* Record the part after the last comma. */
3245 infiles
[n_infiles
].language
= "*";
3246 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3248 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3250 infiles
[n_infiles
].language
= "*";
3251 infiles
[n_infiles
++].name
= argv
[++i
];
3253 else if (strncmp (argv
[i
], "-l", 2) == 0)
3255 infiles
[n_infiles
].language
= "*";
3256 infiles
[n_infiles
++].name
= argv
[i
];
3258 else if (strcmp (argv
[i
], "-specs") == 0)
3260 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3262 else if (strcmp (argv
[i
], "-time") == 0)
3264 else if ((save_temps_flag
|| report_times
)
3265 && strcmp (argv
[i
], "-pipe") == 0)
3267 /* -save-temps overrides -pipe, so that temp files are produced */
3268 if (save_temps_flag
)
3269 error ("Warning: -pipe ignored since -save-temps specified");
3270 /* -time overrides -pipe because we can't get correct stats when
3271 multiple children are running at once. */
3272 else if (report_times
)
3273 error ("Warning: -pipe ignored since -time specified");
3275 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3277 register char *p
= &argv
[i
][1];
3278 register int c
= *p
;
3282 if (p
[1] == 0 && i
+ 1 == argc
)
3283 fatal ("argument to `-x' is missing");
3285 spec_lang
= argv
[++i
];
3288 if (! strcmp (spec_lang
, "none"))
3289 /* Suppress the warning if -xnone comes after the last input
3290 file, because alternate command interfaces like g++ might
3291 find it useful to place -xnone after each input file. */
3294 last_language_n_infiles
= n_infiles
;
3297 switches
[n_switches
].part1
= p
;
3298 /* Deal with option arguments in separate argv elements. */
3299 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3300 || WORD_SWITCH_TAKES_ARG (p
))
3303 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3307 /* Count only the option arguments in separate argv elements. */
3308 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3310 if (i
+ n_args
>= argc
)
3311 fatal ("argument to `-%s' is missing", p
);
3312 switches
[n_switches
].args
3313 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3315 switches
[n_switches
].args
[j
++] = argv
[++i
];
3316 /* Null-terminate the vector. */
3317 switches
[n_switches
].args
[j
] = 0;
3319 else if (index (switches_need_spaces
, c
))
3321 /* On some systems, ld cannot handle some options without
3322 a space. So split the option from its argument. */
3323 char *part1
= (char *) xmalloc (2);
3327 switches
[n_switches
].part1
= part1
;
3328 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3329 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3330 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3331 switches
[n_switches
].args
[1] = 0;
3334 switches
[n_switches
].args
= 0;
3336 switches
[n_switches
].live_cond
= 0;
3337 switches
[n_switches
].validated
= 0;
3338 /* This is always valid, since gcc.c itself understands it. */
3339 if (!strcmp (p
, "save-temps"))
3340 switches
[n_switches
].validated
= 1;
3343 char ch
= switches
[n_switches
].part1
[0];
3344 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3345 switches
[n_switches
].validated
= 1;
3351 #ifdef HAVE_OBJECT_SUFFIX
3352 argv
[i
] = convert_filename (argv
[i
], 0);
3355 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3357 perror_with_name (argv
[i
]);
3362 infiles
[n_infiles
].language
= spec_lang
;
3363 infiles
[n_infiles
++].name
= argv
[i
];
3368 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3369 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3371 switches
[n_switches
].part1
= 0;
3372 infiles
[n_infiles
].name
= 0;
3375 /* Process a spec string, accumulating and running commands. */
3377 /* These variables describe the input file name.
3378 input_file_number is the index on outfiles of this file,
3379 so that the output file name can be stored for later use by %o.
3380 input_basename is the start of the part of the input file
3381 sans all directory names, and basename_length is the number
3382 of characters starting there excluding the suffix .c or whatever. */
3384 const char *input_filename
;
3385 static int input_file_number
;
3386 size_t input_filename_length
;
3387 static int basename_length
;
3388 static const char *input_basename
;
3389 static const char *input_suffix
;
3391 /* These are variables used within do_spec and do_spec_1. */
3393 /* Nonzero if an arg has been started and not yet terminated
3394 (with space, tab or newline). */
3395 static int arg_going
;
3397 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3398 is a temporary file name. */
3399 static int delete_this_arg
;
3401 /* Nonzero means %w has been seen; the next arg to be terminated
3402 is the output file name of this compilation. */
3403 static int this_is_output_file
;
3405 /* Nonzero means %s has been seen; the next arg to be terminated
3406 is the name of a library file and we should try the standard
3407 search dirs for it. */
3408 static int this_is_library_file
;
3410 /* Nonzero means that the input of this command is coming from a pipe. */
3411 static int input_from_pipe
;
3413 /* Process the spec SPEC and run the commands specified therein.
3414 Returns 0 if the spec is successfully processed; -1 if failed. */
3424 delete_this_arg
= 0;
3425 this_is_output_file
= 0;
3426 this_is_library_file
= 0;
3427 input_from_pipe
= 0;
3429 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3431 /* Force out any unfinished command.
3432 If -pipe, this forces out the last command if it ended in `|'. */
3435 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3438 if (argbuf_index
> 0)
3445 /* Process the sub-spec SPEC as a portion of a larger spec.
3446 This is like processing a whole spec except that we do
3447 not initialize at the beginning and we do not supply a
3448 newline by default at the end.
3449 INSWITCH nonzero means don't process %-sequences in SPEC;
3450 in this case, % is treated as an ordinary character.
3451 This is used while substituting switches.
3452 INSWITCH nonzero also causes SPC not to terminate an argument.
3454 Value is zero unless a line was finished
3455 and the command on that line reported an error. */
3458 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3461 const char *soft_matched_part
;
3463 register const char *p
= spec
;
3470 /* If substituting a switch, treat all chars like letters.
3471 Otherwise, NL, SPC, TAB and % are special. */
3472 switch (inswitch
? 'a' : c
)
3475 /* End of line: finish any pending argument,
3476 then run the pending command if one has been started. */
3479 obstack_1grow (&obstack
, 0);
3480 string
= obstack_finish (&obstack
);
3481 if (this_is_library_file
)
3482 string
= find_file (string
);
3483 store_arg (string
, delete_this_arg
, this_is_output_file
);
3484 if (this_is_output_file
)
3485 outfiles
[input_file_number
] = string
;
3489 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3491 for (i
= 0; i
< n_switches
; i
++)
3492 if (!strcmp (switches
[i
].part1
, "pipe"))
3495 /* A `|' before the newline means use a pipe here,
3496 but only if -pipe was specified.
3497 Otherwise, execute now and don't pass the `|' as an arg. */
3500 input_from_pipe
= 1;
3501 switches
[i
].validated
= 1;
3508 if (argbuf_index
> 0)
3514 /* Reinitialize for a new command, and for a new argument. */
3517 delete_this_arg
= 0;
3518 this_is_output_file
= 0;
3519 this_is_library_file
= 0;
3520 input_from_pipe
= 0;
3524 /* End any pending argument. */
3527 obstack_1grow (&obstack
, 0);
3528 string
= obstack_finish (&obstack
);
3529 if (this_is_library_file
)
3530 string
= find_file (string
);
3531 store_arg (string
, delete_this_arg
, this_is_output_file
);
3532 if (this_is_output_file
)
3533 outfiles
[input_file_number
] = string
;
3537 obstack_1grow (&obstack
, c
);
3543 /* Space or tab ends an argument if one is pending. */
3546 obstack_1grow (&obstack
, 0);
3547 string
= obstack_finish (&obstack
);
3548 if (this_is_library_file
)
3549 string
= find_file (string
);
3550 store_arg (string
, delete_this_arg
, this_is_output_file
);
3551 if (this_is_output_file
)
3552 outfiles
[input_file_number
] = string
;
3554 /* Reinitialize for a new argument. */
3556 delete_this_arg
= 0;
3557 this_is_output_file
= 0;
3558 this_is_library_file
= 0;
3565 fatal ("Invalid specification! Bug in cc.");
3568 obstack_grow (&obstack
, input_basename
, basename_length
);
3573 delete_this_arg
= 2;
3576 /* Dump out the directories specified with LIBRARY_PATH,
3577 followed by the absolute directories
3578 that we search for startfiles. */
3581 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3582 size_t bufsize
= 100;
3583 char *buffer
= (char *) xmalloc (bufsize
);
3586 for (; pl
; pl
= pl
->next
)
3588 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3589 /* Used on systems which record the specified -L dirs
3590 and use them to search for dynamic linking. */
3591 /* Relative directories always come from -B,
3592 and it is better not to use them for searching
3593 at run time. In particular, stage1 loses */
3594 if (!IS_DIR_SEPARATOR (pl
->prefix
[0]))
3597 /* Try subdirectory if there is one. */
3598 if (multilib_dir
!= NULL
)
3602 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3604 bufsize
= (strlen (pl
->prefix
)
3605 + strlen (machine_suffix
)) * 2 + 1;
3606 buffer
= (char *) xrealloc (buffer
, bufsize
);
3607 strcpy (buffer
, pl
->prefix
);
3608 strcat (buffer
, machine_suffix
);
3609 if (is_directory (buffer
, multilib_dir
, 1))
3611 do_spec_1 ("-L", 0, NULL_PTR
);
3612 #ifdef SPACE_AFTER_L_OPTION
3613 do_spec_1 (" ", 0, NULL_PTR
);
3615 do_spec_1 (buffer
, 1, NULL_PTR
);
3616 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3617 /* Make this a separate argument. */
3618 do_spec_1 (" ", 0, NULL_PTR
);
3621 if (!pl
->require_machine_suffix
)
3623 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3625 do_spec_1 ("-L", 0, NULL_PTR
);
3626 #ifdef SPACE_AFTER_L_OPTION
3627 do_spec_1 (" ", 0, NULL_PTR
);
3629 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3630 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3631 /* Make this a separate argument. */
3632 do_spec_1 (" ", 0, NULL_PTR
);
3638 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3640 do_spec_1 ("-L", 0, NULL_PTR
);
3641 #ifdef SPACE_AFTER_L_OPTION
3642 do_spec_1 (" ", 0, NULL_PTR
);
3644 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3645 /* Remove slash from machine_suffix. */
3646 if (strlen (machine_suffix
) >= bufsize
)
3647 bufsize
= strlen (machine_suffix
) * 2 + 1;
3648 buffer
= (char *) xrealloc (buffer
, bufsize
);
3649 strcpy (buffer
, machine_suffix
);
3650 idx
= strlen (buffer
);
3651 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3652 buffer
[idx
- 1] = 0;
3653 do_spec_1 (buffer
, 1, NULL_PTR
);
3654 /* Make this a separate argument. */
3655 do_spec_1 (" ", 0, NULL_PTR
);
3658 if (!pl
->require_machine_suffix
)
3660 if (is_directory (pl
->prefix
, "", 1))
3662 do_spec_1 ("-L", 0, NULL_PTR
);
3663 #ifdef SPACE_AFTER_L_OPTION
3664 do_spec_1 (" ", 0, NULL_PTR
);
3666 /* Remove slash from pl->prefix. */
3667 if (strlen (pl
->prefix
) >= bufsize
)
3668 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3669 buffer
= (char *) xrealloc (buffer
, bufsize
);
3670 strcpy (buffer
, pl
->prefix
);
3671 idx
= strlen (buffer
);
3672 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3673 buffer
[idx
- 1] = 0;
3674 do_spec_1 (buffer
, 1, NULL_PTR
);
3675 /* Make this a separate argument. */
3676 do_spec_1 (" ", 0, NULL_PTR
);
3685 /* %efoo means report an error with `foo' as error message
3686 and don't execute any more commands for this file. */
3690 while (*p
!= 0 && *p
!= '\n') p
++;
3691 buf
= (char *) alloca (p
- q
+ 1);
3692 strncpy (buf
, q
, p
- q
);
3702 if (save_temps_flag
)
3704 obstack_grow (&obstack
, input_basename
, basename_length
);
3705 delete_this_arg
= 0;
3709 #ifdef MKTEMP_EACH_FILE
3710 /* ??? This has a problem: the total number of
3711 values mktemp can return is limited.
3712 That matters for the names of object files.
3713 In 2.4, do something about that. */
3714 struct temp_name
*t
;
3716 const char *suffix
= p
;
3718 if (p
[0] == '%' && p
[1] == 'O')
3721 /* We don't support extra suffix characters after %O. */
3722 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
3724 suffix
= OBJECT_SUFFIX
;
3725 suffix_length
= strlen (OBJECT_SUFFIX
);
3729 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
3731 suffix_length
= p
- suffix
;
3734 /* See if we already have an association of %g/%u/%U and
3736 for (t
= temp_names
; t
; t
= t
->next
)
3737 if (t
->length
== suffix_length
3738 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
3739 && t
->unique
== (c
!= 'g'))
3742 /* Make a new association if needed. %u requires one. */
3743 if (t
== 0 || c
== 'u')
3747 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3748 t
->next
= temp_names
;
3751 t
->length
= suffix_length
;
3752 t
->suffix
= save_string (suffix
, suffix_length
);
3753 t
->unique
= (c
!= 'g');
3754 temp_filename
= make_temp_file (t
->suffix
);
3755 temp_filename_length
= strlen (temp_filename
);
3756 t
->filename
= temp_filename
;
3757 t
->filename_length
= temp_filename_length
;
3760 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3761 delete_this_arg
= 1;
3763 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3764 if (c
== 'u' || c
== 'U')
3770 sprintf (buff
, "%d", unique
);
3771 obstack_grow (&obstack
, buff
, strlen (buff
));
3774 delete_this_arg
= 1;
3780 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3786 struct prefix_list
*pl
= include_prefixes
.plist
;
3788 if (gcc_exec_prefix
)
3790 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3791 /* Make this a separate argument. */
3792 do_spec_1 (" ", 0, NULL_PTR
);
3793 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3794 do_spec_1 (" ", 0, NULL_PTR
);
3797 for (; pl
; pl
= pl
->next
)
3799 do_spec_1 ("-isystem", 1, NULL_PTR
);
3800 /* Make this a separate argument. */
3801 do_spec_1 (" ", 0, NULL_PTR
);
3802 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3803 do_spec_1 (" ", 0, NULL_PTR
);
3810 int max
= n_infiles
;
3811 max
+= lang_specific_extra_outfiles
;
3813 for (i
= 0; i
< max
; i
++)
3815 store_arg (outfiles
[i
], 0, 0);
3820 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3825 this_is_library_file
= 1;
3829 this_is_output_file
= 1;
3834 int cur_index
= argbuf_index
;
3835 /* Handle the {...} following the %W. */
3838 p
= handle_braces (p
+ 1);
3841 /* If any args were output, mark the last one for deletion
3843 if (argbuf_index
!= cur_index
)
3844 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3848 /* %x{OPTION} records OPTION for %X to output. */
3854 /* Skip past the option value and make a copy. */
3859 string
= save_string (p1
+ 1, p
- p1
- 2);
3861 /* See if we already recorded this option. */
3862 for (i
= 0; i
< n_linker_options
; i
++)
3863 if (! strcmp (string
, linker_options
[i
]))
3869 /* This option is new; add it. */
3870 add_linker_option (string
, strlen (string
));
3874 /* Dump out the options accumulated previously using %x. */
3876 for (i
= 0; i
< n_linker_options
; i
++)
3878 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3879 /* Make each accumulated option a separate argument. */
3880 do_spec_1 (" ", 0, NULL_PTR
);
3884 /* Dump out the options accumulated previously using -Wa,. */
3886 for (i
= 0; i
< n_assembler_options
; i
++)
3888 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3889 /* Make each accumulated option a separate argument. */
3890 do_spec_1 (" ", 0, NULL_PTR
);
3894 /* Dump out the options accumulated previously using -Wp,. */
3896 for (i
= 0; i
< n_preprocessor_options
; i
++)
3898 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3899 /* Make each accumulated option a separate argument. */
3900 do_spec_1 (" ", 0, NULL_PTR
);
3904 /* Here are digits and numbers that just process
3905 a certain constant string as a spec. */
3908 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3914 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3920 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3926 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3932 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3938 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3944 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3950 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3956 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3962 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3969 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3973 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3977 if (! strncmp (y
, "-D", 2))
3978 /* Copy the whole option. */
3979 while (*y
&& *y
!= ' ' && *y
!= '\t')
3981 else if (*y
== ' ' || *y
== '\t')
3982 /* Copy whitespace to the result. */
3984 /* Don't copy other options. */
3991 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3999 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
4003 /* Copy all of CPP_PREDEFINES into BUF,
4004 but put __ after every -D and at the end of each arg. */
4008 if (! strncmp (y
, "-D", 2))
4017 && ! ISUPPER ((unsigned char)*(y
+1))))
4019 /* Stick __ at front of macro name. */
4022 /* Arrange to stick __ at the end as well. */
4026 /* Copy the macro name. */
4027 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4036 /* Copy the value given, if any. */
4037 while (*y
&& *y
!= ' ' && *y
!= '\t')
4040 else if (*y
== ' ' || *y
== '\t')
4041 /* Copy whitespace to the result. */
4043 /* Don't copy -A options */
4049 /* Copy all of CPP_PREDEFINES into BUF,
4050 but put __ after every -D. */
4054 if (! strncmp (y
, "-D", 2))
4060 && ! ISUPPER ((unsigned char)*(y
+1))))
4062 /* Stick -D__ at front of macro name. */
4068 /* Copy the macro name. */
4069 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4072 /* Copy the value given, if any. */
4073 while (*y
&& *y
!= ' ' && *y
!= '\t')
4078 /* Do not copy this macro - we have just done it before */
4079 while (*y
&& *y
!= ' ' && *y
!= '\t')
4083 else if (*y
== ' ' || *y
== '\t')
4084 /* Copy whitespace to the result. */
4086 /* Don't copy -A options */
4092 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4096 if (! strncmp (y
, "-A", 2))
4097 /* Copy the whole option. */
4098 while (*y
&& *y
!= ' ' && *y
!= '\t')
4100 else if (*y
== ' ' || *y
== '\t')
4101 /* Copy whitespace to the result. */
4103 /* Don't copy other options. */
4110 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4117 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4122 /* Here we define characters other than letters and digits. */
4125 p
= handle_braces (p
);
4131 obstack_1grow (&obstack
, '%');
4135 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4136 do_spec_1 (" ", 0, NULL_PTR
);
4139 /* Process a string found as the value of a spec given by name.
4140 This feature allows individual machine descriptions
4141 to add and use their own specs.
4142 %[...] modifies -D options the way %P does;
4143 %(...) uses the spec unmodified. */
4145 error ("Warning: use of obsolete %%[ operator in specs");
4148 const char *name
= p
;
4149 struct spec_list
*sl
;
4152 /* The string after the S/P is the name of a spec that is to be
4154 while (*p
&& *p
!= ')' && *p
!= ']')
4157 /* See if it's in the list */
4158 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4159 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4161 name
= *(sl
->ptr_spec
);
4163 notice ("Processing spec %c%s%c, which is '%s'\n",
4164 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4173 value
= do_spec_1 (name
, 0, NULL_PTR
);
4179 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4181 const char *y
= name
;
4184 /* Copy all of NAME into BUF, but put __ after
4185 every -D and at the end of each arg, */
4188 if (! strncmp (y
, "-D", 2))
4198 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4199 || *y
== '}' || *y
== 0))
4212 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4218 /* Discard the closing paren or bracket. */
4226 int c1
= *p
++; /* Select first or second version number. */
4227 char *v
= compiler_version
;
4230 /* The format of the version string is
4231 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4233 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4234 while (! ISDIGIT (*v
))
4236 if (v
> compiler_version
&& v
[-1] != '-')
4239 /* If desired, advance to second version number. */
4242 /* Set V after the first period. */
4243 while (ISDIGIT (*v
))
4250 /* Set Q at the next period or at the end. */
4252 while (ISDIGIT (*q
))
4254 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
4257 /* Put that part into the command. */
4258 obstack_grow (&obstack
, v
, q
- v
);
4264 if (input_from_pipe
)
4265 do_spec_1 ("-", 0, NULL_PTR
);
4274 /* Backslash: treat next character as ordinary. */
4279 /* Ordinary character: put it into the current argument. */
4280 obstack_1grow (&obstack
, c
);
4284 return 0; /* End of string */
4287 /* Return 0 if we call do_spec_1 and that returns -1. */
4291 register const char *p
;
4293 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4297 int include_blanks
= 1;
4300 /* A '^' after the open-brace means to not give blanks before args. */
4301 include_blanks
= 0, ++p
;
4304 /* A `|' after the open-brace means,
4305 if the test fails, output a single minus sign rather than nothing.
4306 This is used in %{|!pipe:...}. */
4310 negate
= suffix
= 0;
4313 /* A `!' after the open-brace negates the condition:
4314 succeed if the specified switch is not present. */
4318 /* A `.' after the open-brace means test against the current suffix. */
4328 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4330 if (*p
== '|' && pipe_p
)
4337 register int count
= 1;
4338 register const char *q
= p
;
4340 while (*q
++ != ':') continue;
4356 body
= p
, endbody
= p
+1;
4361 int found
= (input_suffix
!= 0
4362 && (long) strlen (input_suffix
) == (long)(p
- filter
)
4363 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4369 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4372 else if (p
[-1] == '*' && p
[0] == '}')
4374 /* Substitute all matching switches as separate args. */
4377 for (i
= 0; i
< n_switches
; i
++)
4378 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4379 && check_live_switch (i
, p
- filter
))
4380 give_switch (i
, 0, include_blanks
);
4384 /* Test for presence of the specified switch. */
4388 /* If name specified ends in *, as in {x*:...},
4389 check for %* and handle that case. */
4390 if (p
[-1] == '*' && !negate
)
4393 const char *r
= body
;
4395 /* First see whether we have %*. */
4399 if (*r
== '%' && r
[1] == '*')
4403 /* If we do, handle that case. */
4406 /* Substitute all matching switches as separate args.
4407 But do this by substituting for %*
4408 in the text that follows the colon. */
4410 unsigned hard_match_len
= p
- filter
- 1;
4411 char *string
= save_string (body
, endbody
- body
- 1);
4413 for (i
= 0; i
< n_switches
; i
++)
4414 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4415 && check_live_switch (i
, -1))
4417 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4418 /* Pass any arguments this switch has. */
4419 give_switch (i
, 1, 1);
4422 /* We didn't match. Try again. */
4429 /* If name specified ends in *, as in {x*:...},
4430 check for presence of any switch name starting with x. */
4433 for (i
= 0; i
< n_switches
; i
++)
4435 unsigned hard_match_len
= p
- filter
- 1;
4437 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4438 && check_live_switch (i
, hard_match_len
))
4444 /* Otherwise, check for presence of exact name specified. */
4447 for (i
= 0; i
< n_switches
; i
++)
4449 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4450 && switches
[i
].part1
[p
- filter
] == 0
4451 && check_live_switch (i
, -1))
4459 /* If it is as desired (present for %{s...}, absent for %{!s...})
4460 then substitute either the switch or the specified
4461 conditional text. */
4462 if (present
!= negate
)
4466 give_switch (i
, 0, include_blanks
);
4470 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4477 /* Here if a %{|...} conditional fails: output a minus sign,
4478 which means "standard output" or "standard input". */
4479 do_spec_1 ("-", 0, NULL_PTR
);
4484 /* We didn't match; try again. */
4491 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4492 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4493 spec, or -1 if either exact match or %* is used.
4495 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4496 whose value does not begin with "no-" is obsoleted by the same value
4497 with the "no-", similarly for a switch with the "no-" prefix. */
4500 check_live_switch (switchnum
, prefix_length
)
4504 const char *name
= switches
[switchnum
].part1
;
4507 /* In the common case of {<at-most-one-letter>*}, a negating
4508 switch would always match, so ignore that case. We will just
4509 send the conflicting switches to the compiler phase. */
4510 if (prefix_length
>= 0 && prefix_length
<= 1)
4513 /* If we already processed this switch and determined if it was
4514 live or not, return our past determination. */
4515 if (switches
[switchnum
].live_cond
!= 0)
4516 return switches
[switchnum
].live_cond
> 0;
4518 /* Now search for duplicate in a manner that depends on the name. */
4522 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4523 if (switches
[i
].part1
[0] == 'O')
4525 switches
[switchnum
].validated
= 1;
4526 switches
[switchnum
].live_cond
= -1;
4531 case 'W': case 'f': case 'm':
4532 if (! strncmp (name
+ 1, "no-", 3))
4534 /* We have Xno-YYY, search for XYYY. */
4535 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4536 if (switches
[i
].part1
[0] == name
[0]
4537 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4539 switches
[switchnum
].validated
= 1;
4540 switches
[switchnum
].live_cond
= -1;
4546 /* We have XYYY, search for Xno-YYY. */
4547 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4548 if (switches
[i
].part1
[0] == name
[0]
4549 && switches
[i
].part1
[1] == 'n'
4550 && switches
[i
].part1
[2] == 'o'
4551 && switches
[i
].part1
[3] == '-'
4552 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4554 switches
[switchnum
].validated
= 1;
4555 switches
[switchnum
].live_cond
= -1;
4562 /* Otherwise the switch is live. */
4563 switches
[switchnum
].live_cond
= 1;
4567 /* Pass a switch to the current accumulating command
4568 in the same form that we received it.
4569 SWITCHNUM identifies the switch; it is an index into
4570 the vector of switches gcc received, which is `switches'.
4571 This cannot fail since it never finishes a command line.
4573 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4575 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4579 give_switch (switchnum
, omit_first_word
, include_blanks
)
4581 int omit_first_word
;
4584 if (!omit_first_word
)
4586 do_spec_1 ("-", 0, NULL_PTR
);
4587 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4590 if (switches
[switchnum
].args
!= 0)
4593 for (p
= switches
[switchnum
].args
; *p
; p
++)
4596 do_spec_1 (" ", 0, NULL_PTR
);
4597 do_spec_1 (*p
, 1, NULL_PTR
);
4601 do_spec_1 (" ", 0, NULL_PTR
);
4602 switches
[switchnum
].validated
= 1;
4605 /* Search for a file named NAME trying various prefixes including the
4606 user's -B prefix and some standard ones.
4607 Return the absolute file name found. If nothing is found, return NAME. */
4615 /* Try multilib_dir if it is defined. */
4616 if (multilib_dir
!= NULL
)
4620 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4621 strcpy (try, multilib_dir
);
4622 strcat (try, dir_separator_str
);
4625 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4627 /* If we don't find it in the multi library dir, then fall
4628 through and look for it in the normal places. */
4629 if (newname
!= NULL
)
4633 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4634 return newname
? newname
: name
;
4637 /* Determine whether a directory exists. If LINKER, return 0 for
4638 certain fixed names not needed by the linker. If not LINKER, it is
4639 only important to return 0 if the host machine has a small ARG_MAX
4643 is_directory (path1
, path2
, linker
)
4648 int len1
= strlen (path1
);
4649 int len2
= strlen (path2
);
4650 char *path
= (char *) alloca (3 + len1
+ len2
);
4654 #ifndef SMALL_ARG_MAX
4659 /* Construct the path from the two parts. Ensure the string ends with "/.".
4660 The resulting path will be a directory even if the given path is a
4662 memcpy (path
, path1
, len1
);
4663 memcpy (path
+ len1
, path2
, len2
);
4664 cp
= path
+ len1
+ len2
;
4665 if (!IS_DIR_SEPARATOR (cp
[-1]))
4666 *cp
++ = DIR_SEPARATOR
;
4670 /* Exclude directories that the linker is known to search. */
4673 && strcmp (path
, concat (dir_separator_str
, "lib",
4674 dir_separator_str
, ".", NULL_PTR
)) == 0)
4676 && strcmp (path
, concat (dir_separator_str
, "usr",
4677 dir_separator_str
, "lib",
4678 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4681 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4684 /* On fatal signals, delete all the temporary files. */
4687 fatal_error (signum
)
4690 signal (signum
, SIG_DFL
);
4691 delete_failure_queue ();
4692 delete_temp_files ();
4693 /* Get the same signal again, this time not handled,
4694 so its normal effect occurs. */
4695 kill (getpid (), signum
);
4698 extern int main
PROTO ((int, char **));
4708 int linker_was_run
= 0;
4709 char *explicit_link_files
;
4712 struct user_specs
*uptr
;
4714 p
= argv
[0] + strlen (argv
[0]);
4715 while (p
!= argv
[0] && !IS_DIR_SEPARATOR (p
[-1]))
4719 #ifdef HAVE_LC_MESSAGES
4720 setlocale (LC_MESSAGES
, "");
4722 (void) bindtextdomain (PACKAGE
, localedir
);
4723 (void) textdomain (PACKAGE
);
4725 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4726 signal (SIGINT
, fatal_error
);
4728 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4729 signal (SIGHUP
, fatal_error
);
4731 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4732 signal (SIGTERM
, fatal_error
);
4734 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4735 signal (SIGPIPE
, fatal_error
);
4739 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4741 obstack_init (&obstack
);
4743 /* Build multilib_select, et. al from the separate lines that make up each
4744 multilib selection. */
4746 char **q
= multilib_raw
;
4749 obstack_init (&multilib_obstack
);
4750 while ((p
= *q
++) != (char *) 0)
4751 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4753 obstack_1grow (&multilib_obstack
, 0);
4754 multilib_select
= obstack_finish (&multilib_obstack
);
4756 q
= multilib_matches_raw
;
4757 while ((p
= *q
++) != (char *) 0)
4758 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4760 obstack_1grow (&multilib_obstack
, 0);
4761 multilib_matches
= obstack_finish (&multilib_obstack
);
4765 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4769 obstack_1grow (&multilib_obstack
, ' ');
4770 obstack_grow (&multilib_obstack
,
4771 multilib_defaults_raw
[i
],
4772 strlen (multilib_defaults_raw
[i
]));
4776 obstack_1grow (&multilib_obstack
, 0);
4777 multilib_defaults
= obstack_finish (&multilib_obstack
);
4780 /* Set up to remember the pathname of gcc and any options
4781 needed for collect. We use argv[0] instead of programname because
4782 we need the complete pathname. */
4783 obstack_init (&collect_obstack
);
4784 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4785 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4786 putenv (obstack_finish (&collect_obstack
));
4788 #ifdef INIT_ENVIRONMENT
4789 /* Set up any other necessary machine specific environment variables. */
4790 putenv (INIT_ENVIRONMENT
);
4793 /* Choose directory for temp files. */
4795 #ifndef MKTEMP_EACH_FILE
4796 temp_filename
= choose_temp_base ();
4797 temp_filename_length
= strlen (temp_filename
);
4800 /* Make a table of what switches there are (switches, n_switches).
4801 Make a table of specified input files (infiles, n_infiles).
4802 Decode switches that are handled locally. */
4804 process_command (argc
, argv
);
4809 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4811 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4812 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4815 for (i
= 0; (int)i
< n_switches
; i
++)
4820 obstack_grow (&collect_obstack
, " ", 1);
4823 obstack_grow (&collect_obstack
, "'-", 2);
4824 q
= switches
[i
].part1
;
4825 while ((p
= index (q
,'\'')))
4827 obstack_grow (&collect_obstack
, q
, p
-q
);
4828 obstack_grow (&collect_obstack
, "'\\''", 4);
4831 obstack_grow (&collect_obstack
, q
, strlen (q
));
4832 obstack_grow (&collect_obstack
, "'", 1);
4834 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4836 obstack_grow (&collect_obstack
, " '", 2);
4838 while ((p
= index (q
,'\'')))
4840 obstack_grow (&collect_obstack
, q
, p
-q
);
4841 obstack_grow (&collect_obstack
, "'\\''", 4);
4844 obstack_grow (&collect_obstack
, q
, strlen (q
));
4845 obstack_grow (&collect_obstack
, "'", 1);
4848 obstack_grow (&collect_obstack
, "\0", 1);
4849 putenv (obstack_finish (&collect_obstack
));
4852 /* Initialize the vector of specs to just the default.
4853 This means one element containing 0s, as a terminator. */
4855 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4856 bcopy ((char *) default_compilers
, (char *) compilers
,
4857 sizeof default_compilers
);
4858 n_compilers
= n_default_compilers
;
4860 /* Read specs from a file if there is one. */
4862 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4863 spec_version
, dir_separator_str
, NULL_PTR
);
4864 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4866 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4867 /* Read the specs file unless it is a default one. */
4868 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4869 read_specs (specs_file
, TRUE
);
4873 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4874 for any override of as, ld and libraries. */
4875 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4876 + strlen (just_machine_suffix
)
4877 + sizeof ("specs"));
4879 strcpy (specs_file
, standard_exec_prefix
);
4880 strcat (specs_file
, just_machine_suffix
);
4881 strcat (specs_file
, "specs");
4882 if (access (specs_file
, R_OK
) == 0)
4883 read_specs (specs_file
, TRUE
);
4885 /* If not cross-compiling, look for startfiles in the standard places. */
4886 if (*cross_compile
== '0')
4888 #ifdef MD_EXEC_PREFIX
4889 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4890 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4893 #ifdef MD_STARTFILE_PREFIX
4894 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4898 #ifdef MD_STARTFILE_PREFIX_1
4899 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4903 /* If standard_startfile_prefix is relative, base it on
4904 standard_exec_prefix. This lets us move the installed tree
4905 as a unit. If GCC_EXEC_PREFIX is defined, base
4906 standard_startfile_prefix on that as well. */
4907 if (IS_DIR_SEPARATOR (*standard_startfile_prefix
)
4908 || *standard_startfile_prefix
== '$'
4909 #ifdef HAVE_DOS_BASED_FILESYSTEM
4910 /* Check for disk name on MS-DOS-based systems. */
4911 || (standard_startfile_prefix
[1] == ':'
4912 && (IS_DIR_SEPARATOR (standard_startfile_prefix
[2])))
4915 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4919 if (gcc_exec_prefix
)
4920 add_prefix (&startfile_prefixes
,
4921 concat (gcc_exec_prefix
, machine_suffix
,
4922 standard_startfile_prefix
, NULL_PTR
),
4923 NULL_PTR
, 0, 0, NULL_PTR
);
4924 add_prefix (&startfile_prefixes
,
4925 concat (standard_exec_prefix
,
4927 standard_startfile_prefix
, NULL_PTR
),
4928 NULL_PTR
, 0, 0, NULL_PTR
);
4931 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4932 "BINUTILS", 0, 0, NULL_PTR
);
4933 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4934 "BINUTILS", 0, 0, NULL_PTR
);
4935 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4936 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4941 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix
) && gcc_exec_prefix
)
4942 add_prefix (&startfile_prefixes
,
4943 concat (gcc_exec_prefix
, machine_suffix
,
4944 standard_startfile_prefix
, NULL_PTR
),
4945 "BINUTILS", 0, 0, NULL_PTR
);
4948 /* Process any user specified specs in the order given on the command
4950 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4952 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4953 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4956 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4957 if (gcc_exec_prefix
)
4959 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4960 + strlen (spec_version
)
4961 + strlen (spec_machine
) + 3);
4962 strcpy (temp
, gcc_exec_prefix
);
4963 strcat (temp
, spec_machine
);
4964 strcat (temp
, dir_separator_str
);
4965 strcat (temp
, spec_version
);
4966 strcat (temp
, dir_separator_str
);
4967 gcc_exec_prefix
= temp
;
4970 /* Now we have the specs.
4971 Set the `valid' bits for switches that match anything in any spec. */
4973 validate_all_switches ();
4975 /* Now that we have the switches and the specs, set
4976 the subdirectory based on the options. */
4977 set_multilib_dir ();
4979 /* Warn about any switches that no pass was interested in. */
4981 for (i
= 0; (int)i
< n_switches
; i
++)
4982 if (! switches
[i
].validated
)
4983 error ("unrecognized option `-%s'", switches
[i
].part1
);
4985 /* Obey some of the options. */
4987 if (print_search_dirs
)
4989 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4990 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4991 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4995 if (print_file_name
)
4997 printf ("%s\n", find_file (print_file_name
));
5001 if (print_prog_name
)
5003 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
5004 printf ("%s\n", (newname
? newname
: print_prog_name
));
5008 if (print_multi_lib
)
5010 print_multilib_info ();
5014 if (print_multi_directory
)
5016 if (multilib_dir
== NULL
)
5019 printf ("%s\n", multilib_dir
);
5023 if (print_help_list
)
5029 printf ("\nFor bug reporting instructions, please see:\n");
5030 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>.\n");
5035 /* We do not exit here. Instead we have created a fake input file
5036 called 'help-dummy' which needs to be compiled, and we pass this
5037 on the the various sub-processes, along with the --help switch. */
5044 /* compiler_version is truncated at the first space when initialized
5045 from version string, so truncate version_string at the first space
5046 before comparing. */
5047 for (n
= 0; version_string
[n
]; n
++)
5048 if (version_string
[n
] == ' ')
5051 if (! strncmp (version_string
, compiler_version
, n
)
5052 && compiler_version
[n
] == 0)
5053 notice ("gcc version %s\n", version_string
);
5055 notice ("gcc driver version %s executing gcc version %s\n",
5056 version_string
, compiler_version
);
5062 if (n_infiles
== added_libraries
)
5063 fatal ("No input files");
5065 /* Make a place to record the compiler output file names
5066 that correspond to the input files. */
5069 i
+= lang_specific_extra_outfiles
;
5070 outfiles
= (const char **) xcalloc (i
, sizeof (char *));
5072 /* Record which files were specified explicitly as link input. */
5074 explicit_link_files
= xcalloc (1, n_infiles
);
5076 for (i
= 0; (int)i
< n_infiles
; i
++)
5078 register struct compiler
*cp
= 0;
5079 int this_file_error
= 0;
5081 /* Tell do_spec what to substitute for %i. */
5083 input_filename
= infiles
[i
].name
;
5084 input_filename_length
= strlen (input_filename
);
5085 input_file_number
= i
;
5087 /* Use the same thing in %o, unless cp->spec says otherwise. */
5089 outfiles
[i
] = input_filename
;
5091 /* Figure out which compiler from the file's suffix. */
5093 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5094 infiles
[i
].language
);
5098 /* Ok, we found an applicable compiler. Run its spec. */
5099 /* First say how much of input_filename to substitute for %b */
5100 register const char *p
;
5103 if (cp
->spec
[0][0] == '#')
5104 error ("%s: %s compiler not installed on this system",
5105 input_filename
, &cp
->spec
[0][1]);
5107 input_basename
= input_filename
;
5108 for (p
= input_filename
; *p
; p
++)
5109 if (IS_DIR_SEPARATOR (*p
))
5110 input_basename
= p
+ 1;
5112 /* Find a suffix starting with the last period,
5113 and set basename_length to exclude that suffix. */
5114 basename_length
= strlen (input_basename
);
5115 p
= input_basename
+ basename_length
;
5116 while (p
!= input_basename
&& *p
!= '.') --p
;
5117 if (*p
== '.' && p
!= input_basename
)
5119 basename_length
= p
- input_basename
;
5120 input_suffix
= p
+ 1;
5126 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5128 len
+= strlen (cp
->spec
[j
]);
5131 char *p1
= (char *) xmalloc (len
+ 1);
5134 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5137 strcpy (p1
+ len
, cp
->spec
[j
]);
5138 len
+= strlen (cp
->spec
[j
]);
5141 value
= do_spec (p1
);
5145 this_file_error
= 1;
5148 /* If this file's name does not contain a recognized suffix,
5149 record it as explicit linker input. */
5152 explicit_link_files
[i
] = 1;
5154 /* Clear the delete-on-failure queue, deleting the files in it
5155 if this compilation failed. */
5157 if (this_file_error
)
5159 delete_failure_queue ();
5162 /* If this compilation succeeded, don't delete those files later. */
5163 clear_failure_queue ();
5166 if (error_count
== 0)
5168 /* Make sure INPUT_FILE_NUMBER points to first available open
5170 input_file_number
= n_infiles
;
5171 if (lang_specific_pre_link ())
5175 /* Run ld to link all the compiler output files. */
5177 if (error_count
== 0)
5179 int tmp
= execution_count
;
5181 /* We'll use ld if we can't find collect2. */
5182 if (! strcmp (linker_name_spec
, "collect2"))
5184 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5186 linker_name_spec
= "ld";
5188 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5190 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5191 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5193 value
= do_spec (link_command_spec
);
5196 linker_was_run
= (tmp
!= execution_count
);
5199 /* Warn if a -B option was specified but the prefix was never used. */
5200 unused_prefix_warnings (&exec_prefixes
);
5201 unused_prefix_warnings (&startfile_prefixes
);
5203 /* If options said don't run linker,
5204 complain about input files to be given to the linker. */
5206 if (! linker_was_run
&& error_count
== 0)
5207 for (i
= 0; (int)i
< n_infiles
; i
++)
5208 if (explicit_link_files
[i
])
5209 error ("%s: linker input file unused since linking not done",
5212 /* Delete some or all of the temporary files we made. */
5215 delete_failure_queue ();
5216 delete_temp_files ();
5218 if (print_help_list
)
5220 printf ("\nFor bug reporting instructions, please see:\n");
5221 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>\n");
5224 return (signal_count
!= 0 ? 2
5225 : error_count
> 0 ? (pass_exit_codes
? greatest_status
: 1)
5229 /* Find the proper compilation spec for the file name NAME,
5230 whose length is LENGTH. LANGUAGE is the specified language,
5231 or 0 if this file is to be passed to the linker. */
5233 static struct compiler
*
5234 lookup_compiler (name
, length
, language
)
5237 const char *language
;
5239 struct compiler
*cp
;
5241 /* If this was specified by the user to be a linker input, indicate that. */
5242 if (language
!= 0 && language
[0] == '*')
5245 /* Otherwise, look for the language, if one is spec'd. */
5248 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5249 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5252 error ("language %s not recognized", language
);
5256 /* Look for a suffix. */
5257 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5259 if (/* The suffix `-' matches only the file name `-'. */
5260 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5261 || (strlen (cp
->suffix
) < length
5262 /* See if the suffix matches the end of NAME. */
5264 && ((!strcmp (cp
->suffix
,
5265 name
+ length
- strlen (cp
->suffix
))
5266 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5267 && !strcasecmp (cp
->suffix
,
5268 name
+ length
- strlen (cp
->suffix
)))
5270 && !strcmp (cp
->suffix
,
5271 name
+ length
- strlen (cp
->suffix
))
5275 if (cp
->spec
[0][0] == '@')
5277 struct compiler
*new;
5279 /* An alias entry maps a suffix to a language.
5280 Search for the language; pass 0 for NAME and LENGTH
5281 to avoid infinite recursion if language not found.
5282 Construct the new compiler spec. */
5283 language
= cp
->spec
[0] + 1;
5284 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5285 new->suffix
= cp
->suffix
;
5287 lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5292 /* A non-alias entry: return it. */
5301 save_string (s
, len
)
5305 register char *result
= xmalloc (len
+ 1);
5307 bcopy (s
, result
, len
);
5313 pfatal_with_name (name
)
5316 perror_with_name (name
);
5317 delete_temp_files ();
5322 perror_with_name (name
)
5325 error ("%s: %s", name
, xstrerror (errno
));
5329 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5330 const char *errmsg_fmt
;
5331 const char *errmsg_arg
;
5335 int save_errno
= errno
;
5337 /* Space for trailing '\0' is in %s. */
5338 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5339 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5345 pfatal_with_name (errmsg_fmt
);
5348 /* Output an error message and exit */
5353 fatal ("Internal gcc abort.");
5356 /* Output an error message and exit */
5359 fatal
VPROTO((const char *msgid
, ...))
5361 #ifndef ANSI_PROTOTYPES
5366 VA_START (ap
, msgid
);
5368 #ifndef ANSI_PROTOTYPES
5369 msgid
= va_arg (ap
, const char *);
5372 fprintf (stderr
, "%s: ", programname
);
5373 vfprintf (stderr
, _(msgid
), ap
);
5375 fprintf (stderr
, "\n");
5376 delete_temp_files ();
5381 error
VPROTO((const char *msgid
, ...))
5383 #ifndef ANSI_PROTOTYPES
5388 VA_START (ap
, msgid
);
5390 #ifndef ANSI_PROTOTYPES
5391 msgid
= va_arg (ap
, const char *);
5394 fprintf (stderr
, "%s: ", programname
);
5395 vfprintf (stderr
, _(msgid
), ap
);
5398 fprintf (stderr
, "\n");
5402 notice
VPROTO((const char *msgid
, ...))
5404 #ifndef ANSI_PROTOTYPES
5409 VA_START (ap
, msgid
);
5411 #ifndef ANSI_PROTOTYPES
5412 msgid
= va_arg (ap
, const char *);
5415 vfprintf (stderr
, _(msgid
), ap
);
5421 validate_all_switches ()
5423 struct compiler
*comp
;
5424 register const char *p
;
5426 struct spec_list
*spec
;
5428 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5431 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5435 if (c
== '%' && *p
== '{')
5436 /* We have a switch spec. */
5437 validate_switches (p
+ 1);
5441 /* look through the linked list of specs read from the specs file */
5442 for (spec
= specs
; spec
; spec
= spec
->next
)
5444 p
= *(spec
->ptr_spec
);
5446 if (c
== '%' && *p
== '{')
5447 /* We have a switch spec. */
5448 validate_switches (p
+ 1);
5451 p
= link_command_spec
;
5453 if (c
== '%' && *p
== '{')
5454 /* We have a switch spec. */
5455 validate_switches (p
+ 1);
5458 /* Look at the switch-name that comes after START
5459 and mark as valid all supplied switches that match it. */
5462 validate_switches (start
)
5465 register const char *p
= start
;
5480 while (*p
!= ':' && *p
!= '}') p
++;
5484 else if (p
[-1] == '*')
5486 /* Mark all matching switches as valid. */
5488 for (i
= 0; i
< n_switches
; i
++)
5489 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5490 switches
[i
].validated
= 1;
5494 /* Mark an exact matching switch as valid. */
5495 for (i
= 0; i
< n_switches
; i
++)
5497 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5498 && switches
[i
].part1
[p
- filter
] == 0)
5499 switches
[i
].validated
= 1;
5504 /* Check whether a particular argument was used. The first time we
5505 canonicalize the switches to keep only the ones we care about. */
5519 static struct mswitchstr
*mswitches
;
5520 static int n_mswitches
;
5525 struct mswitchstr
*matches
;
5529 /* Break multilib_matches into the component strings of string and replacement
5531 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5535 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5537 q
= multilib_matches
;
5548 matches
[i
].len
= q
- matches
[i
].str
;
5550 matches
[i
].replace
= ++q
;
5551 while (*q
!= ';' && *q
!= '\0')
5557 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5565 /* Now build a list of the replacement string for switches that we care
5566 about. Make sure we allocate at least one entry. This prevents
5567 xmalloc from calling fatal, and prevents us from re-executing this
5570 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5571 * (n_switches
? n_switches
: 1));
5572 for (i
= 0; i
< n_switches
; i
++)
5574 int xlen
= strlen (switches
[i
].part1
);
5575 for (j
= 0; j
< cnt
; j
++)
5576 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5578 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5579 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5580 mswitches
[n_mswitches
].replace
= (char *)0;
5581 mswitches
[n_mswitches
].rep_len
= 0;
5588 for (i
= 0; i
< n_mswitches
; i
++)
5589 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5596 default_arg (p
, len
)
5602 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5604 while (*start
== ' ' || *start
== '\t')
5610 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5613 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5623 /* Work out the subdirectory to use based on the
5624 options. The format of multilib_select is a list of elements.
5625 Each element is a subdirectory name followed by a list of options
5626 followed by a semicolon. gcc will consider each line in turn. If
5627 none of the options beginning with an exclamation point are
5628 present, and all of the other options are present, that
5629 subdirectory will be used. */
5634 char *p
= multilib_select
;
5636 char *this_path
, *this_arg
;
5642 /* Ignore newlines. */
5649 /* Get the initial path. */
5657 this_path_len
= p
- this_path
;
5659 /* Check the arguments. */
5674 while (*p
!= ' ' && *p
!= ';')
5681 if (*this_arg
!= '!')
5689 /* If this is a default argument, we can just ignore it.
5690 This is true even if this_arg begins with '!'. Beginning
5691 with '!' does not mean that this argument is necessarily
5692 inappropriate for this library: it merely means that
5693 there is a more specific library which uses this
5694 argument. If this argument is a default, we need not
5695 consider that more specific library. */
5696 if (! default_arg (this_arg
, p
- this_arg
))
5698 ok
= used_arg (this_arg
, p
- this_arg
);
5709 if (this_path_len
!= 1
5710 || this_path
[0] != '.')
5712 char * new_multilib_dir
= xmalloc (this_path_len
+ 1);
5713 strncpy (new_multilib_dir
, this_path
, this_path_len
);
5714 new_multilib_dir
[this_path_len
] = '\0';
5715 multilib_dir
= new_multilib_dir
;
5724 /* Print out the multiple library subdirectory selection
5725 information. This prints out a series of lines. Each line looks
5726 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5727 required. Only the desired options are printed out, the negative
5728 matches. The options are print without a leading dash. There are
5729 no spaces to make it easy to use the information in the shell.
5730 Each subdirectory is printed only once. This assumes the ordering
5731 generated by the genmultilib script. */
5734 print_multilib_info ()
5736 char *p
= multilib_select
;
5737 char *last_path
= 0, *this_path
;
5739 int last_path_len
= 0;
5743 /* Ignore newlines. */
5750 /* Get the initial path. */
5759 /* If this is a duplicate, skip it. */
5760 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5761 && ! strncmp (last_path
, this_path
, last_path_len
));
5763 last_path
= this_path
;
5764 last_path_len
= p
- this_path
;
5766 /* If this directory requires any default arguments, we can skip
5767 it. We will already have printed a directory identical to
5768 this one which does not require that default argument. */
5786 while (*q
!= ' ' && *q
!= ';')
5794 && default_arg (arg
, q
- arg
))
5809 for (p1
= last_path
; p1
< p
; p1
++)
5828 use_arg
= *p
!= '!';
5833 while (*p
!= ' ' && *p
!= ';')
5848 /* If there are extra options, print them now */
5849 if (multilib_extra
&& *multilib_extra
)
5851 int print_at
= TRUE
;
5854 for (q
= multilib_extra
; *q
!= '\0'; q
++)