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". */
43 #define exit __posix_exit
46 /* By default there is no special suffix for executables. */
47 #ifdef EXECUTABLE_SUFFIX
48 #define HAVE_EXECUTABLE_SUFFIX
50 #define EXECUTABLE_SUFFIX ""
53 /* By default, the suffix for object files is ".o". */
55 #define HAVE_OBJECT_SUFFIX
57 #define OBJECT_SUFFIX ".o"
60 /* By default, colon separates directories in a path. */
61 #ifndef PATH_SEPARATOR
62 #define PATH_SEPARATOR ':'
66 #define DIR_SEPARATOR '/'
69 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
71 #define obstack_chunk_alloc xmalloc
72 #define obstack_chunk_free free
74 #ifndef GET_ENV_PATH_LIST
75 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
79 #define kill(p,s) raise(s)
82 /* If a stage of compilation returns an exit status >= 1,
83 compilation of that file ceases. */
85 #define MIN_FATAL_STATUS 1
87 /* Flag saying to print the directories gcc will search through looking for
88 programs, libraries, etc. */
90 static int print_search_dirs
;
92 /* Flag saying to print the full filename of this file
93 as found through our usual search mechanism. */
95 static const char *print_file_name
= NULL
;
97 /* As print_file_name, but search for executable file. */
99 static const char *print_prog_name
= NULL
;
101 /* Flag saying to print the relative path we'd use to
102 find libgcc.a given the current compiler flags. */
104 static int print_multi_directory
;
106 /* Flag saying to print the list of subdirectories and
107 compiler flags used to select them in a standard form. */
109 static int print_multi_lib
;
111 /* Flag saying to print the command line options understood by gcc and its
114 static int print_help_list
;
116 /* Flag indicating whether we should print the command and arguments */
118 static int verbose_flag
;
120 /* Nonzero means write "temp" files in source directory
121 and use the source file's name in them, and don't delete them. */
123 static int save_temps_flag
;
125 /* The compiler version. */
127 static char *compiler_version
;
129 /* The target version specified with -V */
131 static char *spec_version
= DEFAULT_TARGET_VERSION
;
133 /* The target machine specified with -b. */
135 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
137 /* Nonzero if cross-compiling.
138 When -b is used, the value comes from the `specs' file. */
141 static char *cross_compile
= "1";
143 static char *cross_compile
= "0";
146 /* The number of errors that have occurred; the link phase will not be
147 run if this is non-zero. */
148 static int error_count
= 0;
150 /* This is the obstack which we use to allocate many strings. */
152 static struct obstack obstack
;
154 /* This is the obstack to build an environment variable to pass to
155 collect2 that describes all of the relevant switches of what to
156 pass the compiler in building the list of pointers to constructors
159 static struct obstack collect_obstack
;
161 extern char *version_string
;
163 /* Forward declaration for prototypes. */
166 static void init_spec
PROTO((void));
167 static void read_specs
PROTO((const char *, int));
168 static void set_spec
PROTO((const char *, const char *));
169 static struct compiler
*lookup_compiler
PROTO((const char *, size_t, const char *));
170 static char *build_search_list
PROTO((struct path_prefix
*, const char *, int));
171 static void putenv_from_prefixes
PROTO((struct path_prefix
*, const char *));
172 static char *find_a_file
PROTO((struct path_prefix
*, const char *, int));
173 static void add_prefix
PROTO((struct path_prefix
*, const char *,
174 const char *, int, int, int *));
175 static char *skip_whitespace
PROTO((char *));
176 static void record_temp_file
PROTO((const char *, int, int));
177 static void delete_if_ordinary
PROTO((const char *));
178 static void delete_temp_files
PROTO((void));
179 static void delete_failure_queue
PROTO((void));
180 static void clear_failure_queue
PROTO((void));
181 static int check_live_switch
PROTO((int, int));
182 static const char *handle_braces
PROTO((const char *));
183 static char *save_string
PROTO((const char *, int));
184 extern int do_spec
PROTO((const char *));
185 static int do_spec_1
PROTO((const char *, int, const char *));
186 static const char *find_file
PROTO((const char *));
187 static int is_directory
PROTO((const char *, const char *, int));
188 static void validate_switches
PROTO((const char *));
189 static void validate_all_switches
PROTO((void));
190 static void give_switch
PROTO((int, int, int));
191 static int used_arg
PROTO((const char *, int));
192 static int default_arg
PROTO((const char *, int));
193 static void set_multilib_dir
PROTO((void));
194 static void print_multilib_info
PROTO((void));
195 static void pfatal_with_name
PROTO((const char *)) ATTRIBUTE_NORETURN
;
196 static void perror_with_name
PROTO((const char *));
197 static void pfatal_pexecute
PROTO((const char *, const char *))
199 static void fatal
PVPROTO((const char *, ...))
200 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1
;
201 static void error
PVPROTO((const char *, ...))
203 static void notice
PVPROTO((const char *, ...))
205 static void display_help
PROTO((void));
206 static void add_preprocessor_option
PROTO ((const char *, int));
207 static void add_assembler_option
PROTO ((const char *, int));
208 static void add_linker_option
PROTO ((const char *, int));
209 static void process_command
PROTO ((int, char **));
210 static int execute
PROTO ((void));
211 static void unused_prefix_warnings
PROTO ((struct path_prefix
*));
212 static void clear_args
PROTO ((void));
213 static void fatal_error
PROTO ((int));
215 void fancy_abort
PROTO((void)) ATTRIBUTE_NORETURN
;
217 #ifdef LANG_SPECIFIC_DRIVER
218 /* Called before processing to change/add/remove arguments. */
219 extern void lang_specific_driver
PROTO ((void (*) PVPROTO((const char *, ...)), int *, char ***, int *));
221 /* Called before linking. Returns 0 on success and -1 on failure. */
222 extern int lang_specific_pre_link ();
224 /* Number of extra output files that lang_specific_pre_link may generate. */
225 extern int lang_specific_extra_outfiles
;
228 /* Specs are strings containing lines, each of which (if not blank)
229 is made up of a program name, and arguments separated by spaces.
230 The program name must be exact and start from root, since no path
231 is searched and it is unreliable to depend on the current working directory.
232 Redirection of input or output is not supported; the subprograms must
233 accept filenames saying what files to read and write.
235 In addition, the specs can contain %-sequences to substitute variable text
236 or for conditional text. Here is a table of all defined %-sequences.
237 Note that spaces are not generated automatically around the results of
238 expanding these sequences; therefore, you can concatenate them together
239 or with constant text in a single argument.
241 %% substitute one % into the program name or argument.
242 %i substitute the name of the input file being processed.
243 %b substitute the basename of the input file being processed.
244 This is the substring up to (and not including) the last period
245 and not including the directory.
247 substitute a file name that has suffix SUFFIX and is chosen
248 once per compilation, and mark the argument a la %d. To reduce
249 exposure to denial-of-service attacks, the file name is now
250 chosen in a way that is hard to predict even when previously
251 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
252 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
253 the regexp "[.A-Za-z]*" or the special string "%O", which is
254 treated exactly as if %O had been pre-processed. Previously, %g
255 was simply substituted with a file name chosen once per compilation,
256 without regard to any appended suffix (which was therefore treated
257 just like ordinary text), making such attacks more likely to succeed.
259 like %g, but generates a new temporary file name even if %uSUFFIX
262 substitutes the last file name generated with %uSUFFIX, generating a
263 new one if there is no such last file name. In the absence of any
264 %uSUFFIX, this is just like %gSUFFIX, except they don't share
265 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
266 would involve the generation of two distinct file names, one
267 for each `%g.s' and another for each `%U.s'. Previously, %U was
268 simply substituted with a file name chosen for the previous %u,
269 without regard to any appended suffix.
270 %d marks the argument containing or following the %d as a
271 temporary file name, so that that file will be deleted if CC exits
272 successfully. Unlike %g, this contributes no text to the argument.
273 %w marks the argument containing or following the %w as the
274 "output file" of this compilation. This puts the argument
275 into the sequence of arguments that %o will substitute later.
277 like %{...} but mark last argument supplied within
278 as a file to be deleted on failure.
279 %o substitutes the names of all the output files, with spaces
280 automatically placed around them. You should write spaces
281 around the %o as well or the results are undefined.
282 %o is for use in the specs for running the linker.
283 Input files whose names have no recognized suffix are not compiled
284 at all, but they are included among the output files, so they will
286 %O substitutes the suffix for object files. Note that this is
287 handled specially when it immediately follows %g, %u, or %U,
288 because of the need for those to form complete file names. The
289 handling is such that %O is treated exactly as if it had already
290 been substituted, except that %g, %u, and %U do not currently
291 support additional SUFFIX characters following %O as they would
292 following, for example, `.o'.
293 %p substitutes the standard macro predefinitions for the
294 current target machine. Use this when running cpp.
295 %P like %p, but puts `__' before and after the name of each macro.
296 (Except macros that already have __.)
298 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
299 %s current argument is the name of a library or startup file of some sort.
300 Search for that file in a standard list of directories
301 and substitute the full name found.
302 %eSTR Print STR as an error message. STR is terminated by a newline.
303 Use this when inconsistent options are detected.
304 %x{OPTION} Accumulate an option for %X.
305 %X Output the accumulated linker options specified by compilations.
306 %Y Output the accumulated assembler options specified by compilations.
307 %Z Output the accumulated preprocessor options specified by compilations.
308 %v1 Substitute the major version number of GCC.
309 (For version 2.5.n, this is 2.)
310 %v2 Substitute the minor version number of GCC.
311 (For version 2.5.n, this is 5.)
312 %a process ASM_SPEC as a spec.
313 This allows config.h to specify part of the spec for running as.
314 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
315 used here. This can be used to run a post-processor after the
316 assembler has done its job.
317 %D Dump out a -L option for each directory in startfile_prefixes.
318 If multilib_dir is set, extra entries are generated with it affixed.
319 %l process LINK_SPEC as a spec.
320 %L process LIB_SPEC as a spec.
321 %G process LIBGCC_SPEC as a spec.
322 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
323 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
324 %c process SIGNED_CHAR_SPEC as a spec.
325 %C process CPP_SPEC as a spec. A capital C is actually used here.
326 %1 process CC1_SPEC as a spec.
327 %2 process CC1PLUS_SPEC as a spec.
328 %| output "-" if the input for the current command is coming from a pipe.
329 %* substitute the variable part of a matched option. (See below.)
330 Note that each comma in the substituted string is replaced by
332 %{S} substitutes the -S switch, if that switch was given to CC.
333 If that switch was not specified, this substitutes nothing.
334 Here S is a metasyntactic variable.
335 %{S*} substitutes all the switches specified to CC whose names start
336 with -S. This is used for -o, -D, -I, etc; switches that take
337 arguments. CC considers `-o foo' as being one switch whose
338 name starts with `o'. %{o*} would substitute this text,
339 including the space; thus, two arguments would be generated.
340 %{^S*} likewise, but don't put a blank between a switch and any args.
341 %{S*:X} substitutes X if one or more switches whose names start with -S are
342 specified to CC. Note that the tail part of the -S option
343 (i.e. the part matched by the `*') will be substituted for each
344 occurrence of %* within X.
345 %{S:X} substitutes X, but only if the -S switch was given to CC.
346 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
347 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
348 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
349 %{.S:X} substitutes X, but only if processing a file with suffix S.
350 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
351 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
352 combined with ! and . as above binding stronger than the OR.
353 %(Spec) processes a specification defined in a specs file as *Spec:
354 %[Spec] as above, but put __ around -D arguments
356 The conditional text X in a %{S:X} or %{!S:X} construct may contain
357 other nested % constructs or spaces, or even newlines. They are
358 processed as usual, as described above.
360 The -O, -f, -m, and -W switches are handled specifically in these
361 constructs. If another value of -O or the negated form of a -f, -m, or
362 -W switch is found later in the command line, the earlier switch
363 value is ignored, except with {S*} where S is just one letter; this
364 passes all matching options.
366 The character | at the beginning of the predicate text is used to indicate
367 that a command should be piped to the following command, but only if -pipe
370 Note that it is built into CC which switches take arguments and which
371 do not. You might think it would be useful to generalize this to
372 allow each compiler's spec to say which switches take arguments. But
373 this cannot be done in a consistent fashion. CC cannot even decide
374 which input files have been specified without knowing which switches
375 take arguments, and it must know which input files to compile in order
376 to tell which compilers to run.
378 CC also knows implicitly that arguments starting in `-l' are to be
379 treated as compiler output files, and passed to the linker in their
380 proper position among the other output files. */
382 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
384 /* config.h can define ASM_SPEC to provide extra args to the assembler
385 or extra switch-translations. */
390 /* config.h can define ASM_FINAL_SPEC to run a post processor after
391 the assembler has run. */
392 #ifndef ASM_FINAL_SPEC
393 #define ASM_FINAL_SPEC ""
396 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
397 or extra switch-translations. */
402 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
403 or extra switch-translations. */
408 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
409 or extra switch-translations. */
411 #define CC1PLUS_SPEC ""
414 /* config.h can define LINK_SPEC to provide extra args to the linker
415 or extra switch-translations. */
420 /* config.h can define LIB_SPEC to override the default libraries. */
422 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
425 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
428 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
429 /* Have gcc do the search for libgcc.a. */
430 #define LIBGCC_SPEC "libgcc.a%s"
432 #define LIBGCC_SPEC "-lgcc"
436 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
437 #ifndef STARTFILE_SPEC
438 #define STARTFILE_SPEC \
439 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
442 /* config.h can define SWITCHES_NEED_SPACES to control which options
443 require spaces between the option and the argument. */
444 #ifndef SWITCHES_NEED_SPACES
445 #define SWITCHES_NEED_SPACES ""
448 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
450 #define ENDFILE_SPEC ""
453 /* This spec is used for telling cpp whether char is signed or not. */
454 #ifndef SIGNED_CHAR_SPEC
455 /* Use #if rather than ?:
456 because MIPS C compiler rejects like ?: in initializers. */
457 #if DEFAULT_SIGNED_CHAR
458 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
460 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
465 #define LINKER_NAME "collect2"
468 static char *cpp_spec
= CPP_SPEC
;
469 static char *cpp_predefines
= CPP_PREDEFINES
;
470 static char *cc1_spec
= CC1_SPEC
;
471 static char *cc1plus_spec
= CC1PLUS_SPEC
;
472 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
473 static char *asm_spec
= ASM_SPEC
;
474 static char *asm_final_spec
= ASM_FINAL_SPEC
;
475 static char *link_spec
= LINK_SPEC
;
476 static char *lib_spec
= LIB_SPEC
;
477 static char *libgcc_spec
= LIBGCC_SPEC
;
478 static char *endfile_spec
= ENDFILE_SPEC
;
479 static char *startfile_spec
= STARTFILE_SPEC
;
480 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
481 static char *linker_name_spec
= LINKER_NAME
;
483 /* Some compilers have limits on line lengths, and the multilib_select
484 and/or multilib_matches strings can be very long, so we build them at
486 static struct obstack multilib_obstack
;
487 static char *multilib_select
;
488 static char *multilib_matches
;
489 static char *multilib_defaults
;
490 #include "multilib.h"
492 /* Check whether a particular argument is a default argument. */
494 #ifndef MULTILIB_DEFAULTS
495 #define MULTILIB_DEFAULTS { "" }
498 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
501 struct user_specs
*next
;
502 const char *filename
;
505 static struct user_specs
*user_specs_head
, *user_specs_tail
;
507 /* This defines which switch letters take arguments. */
509 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
510 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
511 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
512 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
513 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
514 || (CHAR) == 'B' || (CHAR) == 'b')
516 #ifndef SWITCH_TAKES_ARG
517 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
520 /* This defines which multi-letter switches take arguments. */
522 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
523 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
524 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
525 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
526 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
527 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
528 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
530 #ifndef WORD_SWITCH_TAKES_ARG
531 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
535 #ifdef HAVE_EXECUTABLE_SUFFIX
536 /* This defines which switches stop a full compilation. */
537 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
538 ((CHAR) == 'c' || (CHAR) == 'S')
540 #ifndef SWITCH_CURTAILS_COMPILATION
541 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
542 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
546 /* Record the mapping from file suffixes for compilation specs. */
550 const char *suffix
; /* Use this compiler for input files
551 whose names end in this suffix. */
553 const char *spec
[4]; /* To use this compiler, concatenate these
554 specs and pass to do_spec. */
557 /* Pointer to a vector of `struct compiler' that gives the spec for
558 compiling a file, based on its suffix.
559 A file that does not end in any of these suffixes will be passed
560 unchanged to the loader and nothing else will be done to it.
562 An entry containing two 0s is used to terminate the vector.
564 If multiple entries match a file, the last matching one is used. */
566 static struct compiler
*compilers
;
568 /* Number of entries in `compilers', not counting the null terminator. */
570 static int n_compilers
;
572 /* The default list of file name suffixes and their compilation specs. */
574 static struct compiler default_compilers
[] =
576 /* Add lists of suffixes of known languages here. If those languages
577 were not present when we built the driver, we will hit these copies
578 and be given a more meaningful error than "file not used since
579 linking is not done". */
580 {".m", {"#Objective-C"}},
581 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
582 {".c++", {"#C++"}}, {".C", {"#C++"}},
583 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
584 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
585 {".fpp", {"#Fortran"}},
586 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
587 /* Next come the entries for C. */
592 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
593 %{C} %{v} %{A*} %{I*} %{P} %I\
594 %{C:%{!E:%eGNU C does not support -C without using -E}}\
595 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
596 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
597 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
598 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
599 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
600 %{ffast-math:-D__FAST_MATH__}\
601 %{traditional} %{ftraditional:-traditional}\
602 %{traditional-cpp:-traditional}\
603 %{fleading-underscore} %{fno-leading-underscore}\
604 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
605 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
606 %{!E:%{!M:%{!MM:cc1 %i %1 \
607 %{std*} %{nostdinc*} %{A*} %{I*} %I\
608 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
609 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
610 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
611 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
612 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
613 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
614 %{ffast-math:-D__FAST_MATH__}\
615 %{H} %C %{D*} %{U*} %{i*} %Z\
616 %{ftraditional:-traditional}\
617 %{traditional-cpp:-traditional}\
618 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
619 %{aux-info*} %{Qn:-fno-ident}\
621 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
622 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
623 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
625 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
626 %{!pipe:%g.s} %A\n }}}}"
628 #else /* ! USE_CPPLIB */
629 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
630 %{C} %{v} %{A*} %{I*} %{P} %I\
631 %{C:%{!E:%eGNU C does not support -C without using -E}}\
632 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
633 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
634 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
635 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
636 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
637 %{ffast-math:-D__FAST_MATH__}\
638 %{traditional} %{ftraditional:-traditional}\
639 %{traditional-cpp:-traditional}\
640 %{fleading-underscore} %{fno-leading-underscore}\
641 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
642 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
643 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
644 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
645 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
646 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
647 %{aux-info*} %{Qn:-fno-ident}\
649 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
650 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
652 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
653 %{!pipe:%g.s} %A\n }}}}"
655 #endif /* ! USE_CPPLIB */
657 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
658 %{C} %{v} %{A*} %{I*} %{P} %I\
659 %{C:%{!E:%eGNU C does not support -C without using -E}}\
660 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
661 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
662 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
663 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
664 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
665 %{ffast-math:-D__FAST_MATH__}\
666 %{traditional} %{ftraditional:-traditional}\
667 %{traditional-cpp:-traditional}\
668 %{fleading-underscore} %{fno-leading-underscore}\
669 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
671 %{!E:%e-E required when input is from standard input}"}},
672 {".h", {"@c-header"}},
674 {"%{!E:%eCompilation of header file requested} \
675 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
676 %{C:%{!E:%eGNU C does not support -C without using -E}}\
677 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
678 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
679 %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
680 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
681 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
682 %{ffast-math:-D__FAST_MATH__}\
683 %{traditional} %{ftraditional:-traditional}\
684 %{traditional-cpp:-traditional}\
685 %{fleading-underscore} %{fno-leading-underscore}\
686 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
688 {".i", {"@cpp-output"}},
690 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
691 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
692 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
693 %{aux-info*} %{Qn:-fno-ident}\
694 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
695 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
697 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
698 %{!pipe:%g.s} %A\n }}}}"}},
699 {".s", {"@assembler"}},
701 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
702 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
704 {".S", {"@assembler-with-cpp"}},
705 {"@assembler-with-cpp",
706 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
707 %{C:%{!E:%eGNU C does not support -C without using -E}}\
708 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
709 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
710 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
711 %{ffast-math:-D__FAST_MATH__}\
712 %{traditional} %{ftraditional:-traditional}\
713 %{traditional-cpp:-traditional}\
714 %{fleading-underscore} %{fno-leading-underscore}\
715 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
716 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
717 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
718 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
719 %{!pipe:%g.s} %A\n }}}}"}},
721 /* Mark end of table */
725 /* Number of elements in default_compilers, not counting the terminator. */
727 static int n_default_compilers
728 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
730 /* Here is the spec for running the linker, after compiling all files. */
732 /* -u* was put back because both BSD and SysV seem to support it. */
733 /* %{static:} simply prevents an error message if the target machine
734 doesn't handle -static. */
735 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
736 scripts which exist in user specified directories, or in standard
738 #ifdef LINK_COMMAND_SPEC
739 /* Provide option to override link_command_spec from machine specific
740 configuration files. */
741 static const char *link_command_spec
=
744 #ifdef LINK_LIBGCC_SPECIAL
745 /* Don't generate -L options. */
746 static const char *link_command_spec
= "\
748 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
749 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
750 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
752 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
753 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
758 static const char *link_command_spec
= "\
760 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
761 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
762 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
763 %{static:} %{L*} %D %o\
764 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
765 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
771 /* A vector of options to give to the linker.
772 These options are accumulated by %x,
773 and substituted into the linker command with %X. */
774 static int n_linker_options
;
775 static char **linker_options
;
777 /* A vector of options to give to the assembler.
778 These options are accumulated by -Wa,
779 and substituted into the assembler command with %Y. */
780 static int n_assembler_options
;
781 static char **assembler_options
;
783 /* A vector of options to give to the preprocessor.
784 These options are accumulated by -Wp,
785 and substituted into the preprocessor command with %Z. */
786 static int n_preprocessor_options
;
787 static char **preprocessor_options
;
789 /* Define how to map long options into short ones. */
791 /* This structure describes one mapping. */
794 /* The long option's name. */
796 /* The equivalent short option. */
797 const char *equivalent
;
798 /* Argument info. A string of flag chars; NULL equals no options.
799 a => argument required.
800 o => argument optional.
801 j => join argument to equivalent, making one word.
802 * => require other text after NAME as an argument. */
803 const char *arg_info
;
806 /* This is the table of mappings. Mappings are tried sequentially
807 for each option encountered; the first one that matches, wins. */
809 struct option_map option_map
[] =
811 {"--all-warnings", "-Wall", 0},
812 {"--ansi", "-ansi", 0},
813 {"--assemble", "-S", 0},
814 {"--assert", "-A", "a"},
815 {"--classpath", "-fclasspath=", "aj"},
816 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
817 {"--comments", "-C", 0},
818 {"--compile", "-c", 0},
819 {"--debug", "-g", "oj"},
820 {"--define-macro", "-D", "aj"},
821 {"--dependencies", "-M", 0},
822 {"--dump", "-d", "a"},
823 {"--dumpbase", "-dumpbase", "a"},
824 {"--entry", "-e", 0},
825 {"--extra-warnings", "-W", 0},
826 {"--for-assembler", "-Wa", "a"},
827 {"--for-linker", "-Xlinker", "a"},
828 {"--force-link", "-u", "a"},
829 {"--imacros", "-imacros", "a"},
830 {"--include", "-include", "a"},
831 {"--include-barrier", "-I-", 0},
832 {"--include-directory", "-I", "aj"},
833 {"--include-directory-after", "-idirafter", "a"},
834 {"--include-prefix", "-iprefix", "a"},
835 {"--include-with-prefix", "-iwithprefix", "a"},
836 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
837 {"--include-with-prefix-after", "-iwithprefix", "a"},
838 {"--language", "-x", "a"},
839 {"--library-directory", "-L", "a"},
840 {"--machine", "-m", "aj"},
841 {"--machine-", "-m", "*j"},
842 {"--no-line-commands", "-P", 0},
843 {"--no-precompiled-includes", "-noprecomp", 0},
844 {"--no-standard-includes", "-nostdinc", 0},
845 {"--no-standard-libraries", "-nostdlib", 0},
846 {"--no-warnings", "-w", 0},
847 {"--optimize", "-O", "oj"},
848 {"--output", "-o", "a"},
849 {"--output-class-directory", "-foutput-class-dir=", "ja"},
850 {"--pedantic", "-pedantic", 0},
851 {"--pedantic-errors", "-pedantic-errors", 0},
852 {"--pipe", "-pipe", 0},
853 {"--prefix", "-B", "a"},
854 {"--preprocess", "-E", 0},
855 {"--print-search-dirs", "-print-search-dirs", 0},
856 {"--print-file-name", "-print-file-name=", "aj"},
857 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
858 {"--print-missing-file-dependencies", "-MG", 0},
859 {"--print-multi-lib", "-print-multi-lib", 0},
860 {"--print-multi-directory", "-print-multi-directory", 0},
861 {"--print-prog-name", "-print-prog-name=", "aj"},
862 {"--profile", "-p", 0},
863 {"--profile-blocks", "-a", 0},
864 {"--quiet", "-q", 0},
865 {"--save-temps", "-save-temps", 0},
866 {"--shared", "-shared", 0},
867 {"--silent", "-q", 0},
868 {"--specs", "-specs=", "aj"},
869 {"--static", "-static", 0},
870 {"--std", "-std=", "aj"},
871 {"--symbolic", "-symbolic", 0},
872 {"--target", "-b", "a"},
873 {"--trace-includes", "-H", 0},
874 {"--traditional", "-traditional", 0},
875 {"--traditional-cpp", "-traditional-cpp", 0},
876 {"--trigraphs", "-trigraphs", 0},
877 {"--undefine-macro", "-U", "aj"},
878 {"--use-version", "-V", "a"},
879 {"--user-dependencies", "-MM", 0},
880 {"--verbose", "-v", 0},
881 {"--version", "-dumpversion", 0},
882 {"--warn-", "-W", "*j"},
883 {"--write-dependencies", "-MD", 0},
884 {"--write-user-dependencies", "-MMD", 0},
888 /* Translate the options described by *ARGCP and *ARGVP.
889 Make a new vector and store it back in *ARGVP,
890 and store its length in *ARGVC. */
893 translate_options (argcp
, argvp
)
899 const char **argv
= *argvp
;
901 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
905 newv
[newindex
++] = argv
[i
++];
909 /* Translate -- options. */
910 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
913 /* Find a mapping that applies to this option. */
914 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
916 size_t optlen
= strlen (option_map
[j
].name
);
917 size_t arglen
= strlen (argv
[i
]);
918 size_t complen
= arglen
> optlen
? optlen
: arglen
;
919 const char *arginfo
= option_map
[j
].arg_info
;
924 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
932 k
< sizeof (option_map
) / sizeof (option_map
[0]);
934 if (strlen (option_map
[k
].name
) >= arglen
935 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
937 error ("Ambiguous abbreviation %s", argv
[i
]);
941 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
947 /* If the option has an argument, accept that. */
948 if (argv
[i
][optlen
] == '=')
949 arg
= argv
[i
] + optlen
+ 1;
951 /* If this mapping requires extra text at end of name,
952 accept that as "argument". */
953 else if (index (arginfo
, '*') != 0)
954 arg
= argv
[i
] + optlen
;
956 /* Otherwise, extra text at end means mismatch.
957 Try other mappings. */
962 else if (index (arginfo
, '*') != 0)
964 error ("Incomplete `%s' option", option_map
[j
].name
);
968 /* Handle arguments. */
969 if (index (arginfo
, 'a') != 0)
975 error ("Missing argument to `%s' option",
983 else if (index (arginfo
, '*') != 0)
985 else if (index (arginfo
, 'o') == 0)
988 error ("Extraneous argument to `%s' option",
993 /* Store the translation as one argv elt or as two. */
994 if (arg
!= 0 && index (arginfo
, 'j') != 0)
995 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
999 newv
[newindex
++] = option_map
[j
].equivalent
;
1000 newv
[newindex
++] = arg
;
1003 newv
[newindex
++] = option_map
[j
].equivalent
;
1011 /* Handle old-fashioned options--just copy them through,
1012 with their arguments. */
1013 else if (argv
[i
][0] == '-')
1015 const char *p
= argv
[i
] + 1;
1019 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1020 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1021 else if (WORD_SWITCH_TAKES_ARG (p
))
1022 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1023 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1026 else if (! strcmp (p
, "Xlinker"))
1029 /* Watch out for an option at the end of the command line that
1030 is missing arguments, and avoid skipping past the end of the
1032 if (nskip
+ i
> argc
)
1037 newv
[newindex
++] = argv
[i
++];
1042 /* Ordinary operands, or +e options. */
1043 newv
[newindex
++] = argv
[i
++];
1056 #ifdef HAVE_STRERROR
1065 if (e
> 0 && e
< sys_nerr
)
1066 return sys_errlist
[e
];
1078 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1079 be considered whitespace. */
1080 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1082 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1086 while (*p
!= '\n') p
++;
1096 /* Structure to keep track of the specs that have been defined so far.
1097 These are accessed using %(specname) or %[specname] in a compiler
1102 /* The following 2 fields must be first */
1103 /* to allow EXTRA_SPECS to be initialized */
1104 char *name
; /* name of the spec. */
1105 char *ptr
; /* available ptr if no static pointer */
1107 /* The following fields are not initialized */
1108 /* by EXTRA_SPECS */
1109 char **ptr_spec
; /* pointer to the spec itself. */
1110 struct spec_list
*next
; /* Next spec in linked list. */
1111 int name_len
; /* length of the name */
1112 int alloc_p
; /* whether string was allocated */
1115 #define INIT_STATIC_SPEC(NAME,PTR) \
1116 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1118 /* List of statically defined specs */
1119 static struct spec_list static_specs
[] = {
1120 INIT_STATIC_SPEC ("asm", &asm_spec
),
1121 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1122 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1123 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1124 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1125 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1126 INIT_STATIC_SPEC ("link", &link_spec
),
1127 INIT_STATIC_SPEC ("lib", &lib_spec
),
1128 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1129 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1130 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1131 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1132 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1133 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1134 INIT_STATIC_SPEC ("version", &compiler_version
),
1135 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1136 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1137 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1138 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1139 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1142 #ifdef EXTRA_SPECS /* additional specs needed */
1143 /* Structure to keep track of just the first two args of a spec_list.
1144 That is all that the EXTRA_SPECS macro gives us. */
1151 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1152 static struct spec_list
* extra_specs
= (struct spec_list
*)0;
1155 /* List of dynamically allocates specs that have been defined so far. */
1157 static struct spec_list
*specs
= (struct spec_list
*)0;
1160 /* Initialize the specs lookup routines. */
1165 struct spec_list
*next
= (struct spec_list
*)0;
1166 struct spec_list
*sl
= (struct spec_list
*)0;
1170 return; /* already initialized */
1173 notice ("Using builtin specs.\n");
1176 extra_specs
= (struct spec_list
*)
1177 xmalloc (sizeof(struct spec_list
) *
1178 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1179 bzero ((PTR
) extra_specs
, sizeof(struct spec_list
) *
1180 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1182 for (i
= (sizeof(extra_specs_1
) / sizeof(extra_specs_1
[0])) - 1; i
>= 0; i
--)
1184 sl
= &extra_specs
[i
];
1185 sl
->name
= extra_specs_1
[i
].name
;
1186 sl
->ptr
= extra_specs_1
[i
].ptr
;
1188 sl
->name_len
= strlen (sl
->name
);
1189 sl
->ptr_spec
= &sl
->ptr
;
1194 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1196 sl
= &static_specs
[i
];
1205 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1206 removed; If the spec starts with a + then SPEC is added to the end of the
1210 set_spec (name
, spec
)
1214 struct spec_list
*sl
;
1216 int name_len
= strlen (name
);
1219 /* If this is the first call, initialize the statically allocated specs */
1222 struct spec_list
*next
= (struct spec_list
*)0;
1223 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1226 sl
= &static_specs
[i
];
1233 /* See if the spec already exists */
1234 for (sl
= specs
; sl
; sl
= sl
->next
)
1235 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1240 /* Not found - make it */
1241 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1242 sl
->name
= save_string (name
, strlen (name
));
1243 sl
->name_len
= name_len
;
1244 sl
->ptr_spec
= &sl
->ptr
;
1246 *(sl
->ptr_spec
) = "";
1251 old_spec
= *(sl
->ptr_spec
);
1252 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1253 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1254 : save_string (spec
, strlen (spec
)));
1258 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1261 /* Free the old spec */
1262 if (old_spec
&& sl
->alloc_p
)
1268 /* Accumulate a command (program name and args), and run it. */
1270 /* Vector of pointers to arguments in the current line of specifications. */
1272 static char **argbuf
;
1274 /* Number of elements allocated in argbuf. */
1276 static int argbuf_length
;
1278 /* Number of elements in argbuf currently in use (containing args). */
1280 static int argbuf_index
;
1282 /* We want this on by default all the time now. */
1283 #define MKTEMP_EACH_FILE
1285 #ifdef MKTEMP_EACH_FILE
1287 extern char *make_temp_file
PROTO((const char *));
1289 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1292 static struct temp_name
{
1293 const char *suffix
; /* suffix associated with the code. */
1294 int length
; /* strlen (suffix). */
1295 int unique
; /* Indicates whether %g or %u/%U was used. */
1296 const char *filename
; /* associated filename. */
1297 int filename_length
; /* strlen (filename). */
1298 struct temp_name
*next
;
1303 /* Number of commands executed so far. */
1305 static int execution_count
;
1307 /* Number of commands that exited with a signal. */
1309 static int signal_count
;
1311 /* Name with which this program was invoked. */
1313 static const char *programname
;
1315 /* Structures to keep track of prefixes to try when looking for files. */
1319 char *prefix
; /* String to prepend to the path. */
1320 struct prefix_list
*next
; /* Next in linked list. */
1321 int require_machine_suffix
; /* Don't use without machine_suffix. */
1322 /* 2 means try both machine_suffix and just_machine_suffix. */
1323 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1328 struct prefix_list
*plist
; /* List of prefixes to try */
1329 int max_len
; /* Max length of a prefix in PLIST */
1330 const char *name
; /* Name of this list (used in config stuff) */
1333 /* List of prefixes to try when looking for executables. */
1335 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1337 /* List of prefixes to try when looking for startup (crt0) files. */
1339 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1341 /* List of prefixes to try when looking for include files. */
1343 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1345 /* Suffix to attach to directories searched for commands.
1346 This looks like `MACHINE/VERSION/'. */
1348 static const char *machine_suffix
= 0;
1350 /* Suffix to attach to directories searched for commands.
1351 This is just `MACHINE/'. */
1353 static const char *just_machine_suffix
= 0;
1355 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1357 static const char *gcc_exec_prefix
;
1359 /* Default prefixes to attach to command names. */
1361 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1362 #undef MD_EXEC_PREFIX
1363 #undef MD_STARTFILE_PREFIX
1364 #undef MD_STARTFILE_PREFIX_1
1367 #ifndef STANDARD_EXEC_PREFIX
1368 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1369 #endif /* !defined STANDARD_EXEC_PREFIX */
1371 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1372 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1373 #ifdef MD_EXEC_PREFIX
1374 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1377 #ifndef STANDARD_STARTFILE_PREFIX
1378 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1379 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1381 #ifdef MD_STARTFILE_PREFIX
1382 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1384 #ifdef MD_STARTFILE_PREFIX_1
1385 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1387 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1388 static const char *standard_startfile_prefix_1
= "/lib/";
1389 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1391 #ifndef TOOLDIR_BASE_PREFIX
1392 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1394 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1395 static const char *tooldir_prefix
;
1397 /* Subdirectory to use for locating libraries. Set by
1398 set_multilib_dir based on the compilation options. */
1400 static const char *multilib_dir
;
1402 /* Clear out the vector of arguments (after a command is executed). */
1410 /* Add one argument to the vector at the end.
1411 This is done when a space is seen or at the end of the line.
1412 If DELETE_ALWAYS is nonzero, the arg is a filename
1413 and the file should be deleted eventually.
1414 If DELETE_FAILURE is nonzero, the arg is a filename
1415 and the file should be deleted if this compilation fails. */
1418 store_arg (arg
, delete_always
, delete_failure
)
1420 int delete_always
, delete_failure
;
1422 if (argbuf_index
+ 1 == argbuf_length
)
1424 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1426 argbuf
[argbuf_index
++] = arg
;
1427 argbuf
[argbuf_index
] = 0;
1429 if (delete_always
|| delete_failure
)
1430 record_temp_file (arg
, delete_always
, delete_failure
);
1433 /* Read compilation specs from a file named FILENAME,
1434 replacing the default ones.
1436 A suffix which starts with `*' is a definition for
1437 one of the machine-specific sub-specs. The "suffix" should be
1438 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1439 The corresponding spec is stored in asm_spec, etc.,
1440 rather than in the `compilers' vector.
1442 Anything invalid in the file is a fatal error. */
1445 read_specs (filename
, main_p
)
1446 const char *filename
;
1451 struct stat statbuf
;
1456 notice ("Reading specs from %s\n", filename
);
1458 /* Open and stat the file. */
1459 desc
= open (filename
, O_RDONLY
, 0);
1461 pfatal_with_name (filename
);
1462 if (stat (filename
, &statbuf
) < 0)
1463 pfatal_with_name (filename
);
1465 /* Read contents of file into BUFFER. */
1466 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1467 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1469 pfatal_with_name (filename
);
1470 buffer
[readlen
] = 0;
1473 /* Scan BUFFER for specs, putting them in the vector. */
1479 char *in
, *out
, *p1
, *p2
, *p3
;
1481 /* Advance P in BUFFER to the next nonblank nocomment line. */
1482 p
= skip_whitespace (p
);
1486 /* Is this a special command that starts with '%'? */
1487 /* Don't allow this for the main specs file, since it would
1488 encourage people to overwrite it. */
1489 if (*p
== '%' && !main_p
)
1492 while (*p
&& *p
!= '\n')
1495 p
++; /* Skip '\n' */
1497 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1498 && (p1
[sizeof "%include" - 1] == ' '
1499 || p1
[sizeof "%include" - 1] == '\t'))
1503 p1
+= sizeof ("%include");
1504 while (*p1
== ' ' || *p1
== '\t')
1507 if (*p1
++ != '<' || p
[-2] != '>')
1508 fatal ("specs %%include syntax malformed after %ld characters",
1509 (long) (p1
- buffer
+ 1));
1512 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1513 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1516 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1517 && (p1
[sizeof "%include_noerr" - 1] == ' '
1518 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1522 p1
+= sizeof "%include_noerr";
1523 while (*p1
== ' ' || *p1
== '\t') p1
++;
1525 if (*p1
++ != '<' || p
[-2] != '>')
1526 fatal ("specs %%include syntax malformed after %ld characters",
1527 (long) (p1
- buffer
+ 1));
1530 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1532 read_specs (new_filename
, FALSE
);
1533 else if (verbose_flag
)
1534 notice ("Could not find specs file %s\n", p1
);
1537 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1538 && (p1
[sizeof "%rename" - 1] == ' '
1539 || p1
[sizeof "%rename" - 1] == '\t'))
1542 struct spec_list
*sl
;
1544 /* Get original name */
1545 p1
+= sizeof "%rename";
1546 while (*p1
== ' ' || *p1
== '\t')
1549 if (! ISALPHA ((unsigned char)*p1
))
1550 fatal ("specs %%rename syntax malformed after %ld characters",
1551 (long) (p1
- buffer
));
1554 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1557 if (*p2
!= ' ' && *p2
!= '\t')
1558 fatal ("specs %%rename syntax malformed after %ld characters",
1559 (long) (p2
- buffer
));
1563 while (*p2
== ' ' || *p2
== '\t')
1566 if (! ISALPHA ((unsigned char)*p2
))
1567 fatal ("specs %%rename syntax malformed after %ld characters",
1568 (long) (p2
- buffer
));
1570 /* Get new spec name */
1572 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1576 fatal ("specs %%rename syntax malformed after %ld characters",
1577 (long) (p3
- buffer
));
1580 for (sl
= specs
; sl
; sl
= sl
->next
)
1581 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1585 fatal ("specs %s spec was not found to be renamed", p1
);
1587 if (strcmp (p1
, p2
) == 0)
1592 notice ("rename spec %s to %s\n", p1
, p2
);
1594 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1598 set_spec (p2
, *(sl
->ptr_spec
));
1600 free (*(sl
->ptr_spec
));
1602 *(sl
->ptr_spec
) = "";
1607 fatal ("specs unknown %% command after %ld characters",
1608 (long) (p1
- buffer
));
1611 /* Find the colon that should end the suffix. */
1613 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1616 /* The colon shouldn't be missing. */
1618 fatal ("specs file malformed after %ld characters",
1619 (long) (p1
- buffer
));
1621 /* Skip back over trailing whitespace. */
1623 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1626 /* Copy the suffix to a string. */
1627 suffix
= save_string (p
, p2
- p
);
1628 /* Find the next line. */
1629 p
= skip_whitespace (p1
+ 1);
1631 fatal ("specs file malformed after %ld characters",
1632 (long) (p
- buffer
));
1635 /* Find next blank line or end of string. */
1636 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1639 /* Specs end at the blank line and do not include the newline. */
1640 spec
= save_string (p
, p1
- p
);
1643 /* Delete backslash-newline sequences from the spec. */
1648 if (in
[0] == '\\' && in
[1] == '\n')
1650 else if (in
[0] == '#')
1651 while (*in
&& *in
!= '\n')
1659 if (suffix
[0] == '*')
1661 if (! strcmp (suffix
, "*link_command"))
1662 link_command_spec
= spec
;
1664 set_spec (suffix
+ 1, spec
);
1668 /* Add this pair to the vector. */
1670 = ((struct compiler
*)
1671 xrealloc (compilers
,
1672 (n_compilers
+ 2) * sizeof (struct compiler
)));
1674 compilers
[n_compilers
].suffix
= suffix
;
1675 bzero ((char *) compilers
[n_compilers
].spec
,
1676 sizeof compilers
[n_compilers
].spec
);
1677 compilers
[n_compilers
].spec
[0] = spec
;
1679 bzero ((char *) &compilers
[n_compilers
],
1680 sizeof compilers
[n_compilers
]);
1684 link_command_spec
= spec
;
1687 if (link_command_spec
== 0)
1688 fatal ("spec file has no spec for linking");
1691 /* Record the names of temporary files we tell compilers to write,
1692 and delete them at the end of the run. */
1694 /* This is the common prefix we use to make temp file names.
1695 It is chosen once for each run of this program.
1696 It is substituted into a spec by %g.
1697 Thus, all temp file names contain this prefix.
1698 In practice, all temp file names start with this prefix.
1700 This prefix comes from the envvar TMPDIR if it is defined;
1701 otherwise, from the P_tmpdir macro if that is defined;
1702 otherwise, in /usr/tmp or /tmp;
1703 or finally the current directory if all else fails. */
1705 static const char *temp_filename
;
1707 /* Length of the prefix. */
1709 static int temp_filename_length
;
1711 /* Define the list of temporary files to delete. */
1716 struct temp_file
*next
;
1719 /* Queue of files to delete on success or failure of compilation. */
1720 static struct temp_file
*always_delete_queue
;
1721 /* Queue of files to delete on failure of compilation. */
1722 static struct temp_file
*failure_delete_queue
;
1724 /* Record FILENAME as a file to be deleted automatically.
1725 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1726 otherwise delete it in any case.
1727 FAIL_DELETE nonzero means delete it if a compilation step fails;
1728 otherwise delete it in any case. */
1731 record_temp_file (filename
, always_delete
, fail_delete
)
1732 const char *filename
;
1736 register char *name
;
1737 name
= xmalloc (strlen (filename
) + 1);
1738 strcpy (name
, filename
);
1742 register struct temp_file
*temp
;
1743 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1744 if (! strcmp (name
, temp
->name
))
1747 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1748 temp
->next
= always_delete_queue
;
1750 always_delete_queue
= temp
;
1757 register struct temp_file
*temp
;
1758 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1759 if (! strcmp (name
, temp
->name
))
1762 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1763 temp
->next
= failure_delete_queue
;
1765 failure_delete_queue
= temp
;
1771 /* Delete all the temporary files whose names we previously recorded. */
1774 delete_if_ordinary (name
)
1781 printf ("Delete %s? (y or n) ", name
);
1785 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1788 if (i
== 'y' || i
== 'Y')
1790 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1791 if (unlink (name
) < 0)
1793 perror_with_name (name
);
1797 delete_temp_files ()
1799 register struct temp_file
*temp
;
1801 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1802 delete_if_ordinary (temp
->name
);
1803 always_delete_queue
= 0;
1806 /* Delete all the files to be deleted on error. */
1809 delete_failure_queue ()
1811 register struct temp_file
*temp
;
1813 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1814 delete_if_ordinary (temp
->name
);
1818 clear_failure_queue ()
1820 failure_delete_queue
= 0;
1823 /* Routine to add variables to the environment. We do this to pass
1824 the pathname of the gcc driver, and the directories search to the
1825 collect2 program, which is being run as ld. This way, we can be
1826 sure of executing the right compiler when collect2 wants to build
1827 constructors and destructors. Since the environment variables we
1828 use come from an obstack, we don't have to worry about allocating
1837 #ifndef VMS /* nor about VMS */
1839 extern char **environ
;
1840 char **old_environ
= environ
;
1844 int str_len
= strlen (str
);
1848 while ((ch
= *p
++) != '\0' && ch
!= '=')
1854 /* Search for replacing an existing environment variable, and
1855 count the number of total environment variables. */
1856 for (envp
= old_environ
; *envp
; envp
++)
1859 if (!strncmp (str
, *envp
, name_len
))
1866 /* Add a new environment variable */
1867 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1869 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1870 sizeof (char *) * (num_envs
+1));
1875 #endif /* HAVE_PUTENV */
1878 /* Build a list of search directories from PATHS.
1879 PREFIX is a string to prepend to the list.
1880 If CHECK_DIR_P is non-zero we ensure the directory exists.
1881 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1882 It is also used by the --print-search-dirs flag. */
1885 build_search_list (paths
, prefix
, check_dir_p
)
1886 struct path_prefix
*paths
;
1890 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1892 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1893 int first_time
= TRUE
;
1894 struct prefix_list
*pprefix
;
1896 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1898 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1900 int len
= strlen (pprefix
->prefix
);
1904 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1907 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1910 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1911 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1914 if (just_machine_suffix
1915 && pprefix
->require_machine_suffix
== 2
1917 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1920 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1923 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1924 obstack_grow (&collect_obstack
, just_machine_suffix
,
1928 if (! pprefix
->require_machine_suffix
)
1931 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1934 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1938 obstack_1grow (&collect_obstack
, '\0');
1939 return obstack_finish (&collect_obstack
);
1942 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1946 putenv_from_prefixes (paths
, env_var
)
1947 struct path_prefix
*paths
;
1948 const char *env_var
;
1950 putenv (build_search_list (paths
, env_var
, 1));
1953 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1954 access to check permissions.
1955 Return 0 if not found, otherwise return its name, allocated with malloc. */
1958 find_a_file (pprefix
, name
, mode
)
1959 struct path_prefix
*pprefix
;
1964 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1965 struct prefix_list
*pl
;
1966 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1968 #ifdef DEFAULT_ASSEMBLER
1969 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0) {
1970 name
= DEFAULT_ASSEMBLER
;
1971 len
= strlen(name
)+1;
1972 temp
= xmalloc (len
);
1973 strcpy (temp
, name
);
1978 #ifdef DEFAULT_LINKER
1979 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0) {
1980 name
= DEFAULT_LINKER
;
1981 len
= strlen(name
)+1;
1982 temp
= xmalloc (len
);
1983 strcpy (temp
, name
);
1989 len
+= strlen (machine_suffix
);
1991 temp
= xmalloc (len
);
1993 /* Determine the filename to execute (special case for absolute paths). */
1995 if (*name
== '/' || *name
== DIR_SEPARATOR
1996 /* Check for disk name on MS-DOS-based systems. */
1997 || (DIR_SEPARATOR
== '\\' && name
[1] == ':'
1998 && (name
[2] == DIR_SEPARATOR
|| name
[2] == '/')))
2000 if (access (name
, mode
) == 0)
2002 strcpy (temp
, name
);
2007 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2011 /* Some systems have a suffix for executable files.
2012 So try appending that first. */
2013 if (file_suffix
[0] != 0)
2015 strcpy (temp
, pl
->prefix
);
2016 strcat (temp
, machine_suffix
);
2017 strcat (temp
, name
);
2018 strcat (temp
, file_suffix
);
2019 if (access (temp
, mode
) == 0)
2021 if (pl
->used_flag_ptr
!= 0)
2022 *pl
->used_flag_ptr
= 1;
2027 /* Now try just the name. */
2028 strcpy (temp
, pl
->prefix
);
2029 strcat (temp
, machine_suffix
);
2030 strcat (temp
, name
);
2031 if (access (temp
, mode
) == 0)
2033 if (pl
->used_flag_ptr
!= 0)
2034 *pl
->used_flag_ptr
= 1;
2039 /* Certain prefixes are tried with just the machine type,
2040 not the version. This is used for finding as, ld, etc. */
2041 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2043 /* Some systems have a suffix for executable files.
2044 So try appending that first. */
2045 if (file_suffix
[0] != 0)
2047 strcpy (temp
, pl
->prefix
);
2048 strcat (temp
, just_machine_suffix
);
2049 strcat (temp
, name
);
2050 strcat (temp
, file_suffix
);
2051 if (access (temp
, mode
) == 0)
2053 if (pl
->used_flag_ptr
!= 0)
2054 *pl
->used_flag_ptr
= 1;
2059 strcpy (temp
, pl
->prefix
);
2060 strcat (temp
, just_machine_suffix
);
2061 strcat (temp
, name
);
2062 if (access (temp
, mode
) == 0)
2064 if (pl
->used_flag_ptr
!= 0)
2065 *pl
->used_flag_ptr
= 1;
2070 /* Certain prefixes can't be used without the machine suffix
2071 when the machine or version is explicitly specified. */
2072 if (! pl
->require_machine_suffix
)
2074 /* Some systems have a suffix for executable files.
2075 So try appending that first. */
2076 if (file_suffix
[0] != 0)
2078 strcpy (temp
, pl
->prefix
);
2079 strcat (temp
, name
);
2080 strcat (temp
, file_suffix
);
2081 if (access (temp
, mode
) == 0)
2083 if (pl
->used_flag_ptr
!= 0)
2084 *pl
->used_flag_ptr
= 1;
2089 strcpy (temp
, pl
->prefix
);
2090 strcat (temp
, name
);
2091 if (access (temp
, mode
) == 0)
2093 if (pl
->used_flag_ptr
!= 0)
2094 *pl
->used_flag_ptr
= 1;
2104 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2105 at the start of the list, otherwise it goes at the end.
2107 If WARN is nonzero, we will warn if no file is found
2108 through this prefix. WARN should point to an int
2109 which will be set to 1 if this entry is used.
2111 COMPONENT is the value to be passed to update_path.
2113 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2114 the complete value of machine_suffix.
2115 2 means try both machine_suffix and just_machine_suffix. */
2118 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2119 struct path_prefix
*pprefix
;
2121 const char *component
;
2123 int require_machine_suffix
;
2126 struct prefix_list
*pl
, **prev
;
2129 if (! first
&& pprefix
->plist
)
2131 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2136 prev
= &pprefix
->plist
;
2138 /* Keep track of the longest prefix */
2140 prefix
= update_path (prefix
, component
);
2141 len
= strlen (prefix
);
2142 if (len
> pprefix
->max_len
)
2143 pprefix
->max_len
= len
;
2145 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2146 pl
->prefix
= save_string (prefix
, len
);
2147 pl
->require_machine_suffix
= require_machine_suffix
;
2148 pl
->used_flag_ptr
= warn
;
2155 pl
->next
= (struct prefix_list
*) 0;
2159 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2162 unused_prefix_warnings (pprefix
)
2163 struct path_prefix
*pprefix
;
2165 struct prefix_list
*pl
= pprefix
->plist
;
2169 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2171 if (pl
->require_machine_suffix
&& machine_suffix
)
2172 error ("file path prefix `%s%s' never used", pl
->prefix
,
2175 error ("file path prefix `%s' never used", pl
->prefix
);
2177 /* Prevent duplicate warnings. */
2178 *pl
->used_flag_ptr
= 1;
2186 /* Execute the command specified by the arguments on the current line of spec.
2187 When using pipes, this includes several piped-together commands
2188 with `|' between them.
2190 Return 0 if successful, -1 if failed. */
2196 int n_commands
; /* # of command. */
2200 const char *prog
; /* program name. */
2201 char **argv
; /* vector of args. */
2202 int pid
; /* pid of process for this command. */
2205 struct command
*commands
; /* each command buffer with above info. */
2207 /* Count # of piped commands. */
2208 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2209 if (strcmp (argbuf
[i
], "|") == 0)
2212 /* Get storage for each command. */
2214 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2216 /* Split argbuf into its separate piped processes,
2217 and record info about each one.
2218 Also search for the programs that are to be run. */
2220 commands
[0].prog
= argbuf
[0]; /* first command. */
2221 commands
[0].argv
= &argbuf
[0];
2222 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2225 commands
[0].argv
[0] = string
;
2227 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2228 if (strcmp (argbuf
[i
], "|") == 0)
2229 { /* each command. */
2230 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2231 fatal ("-pipe not supported");
2233 argbuf
[i
] = 0; /* termination of command args. */
2234 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2235 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2236 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2238 commands
[n_commands
].argv
[0] = string
;
2242 argbuf
[argbuf_index
] = 0;
2244 /* If -v, print what we are about to do, and maybe query. */
2248 /* For help listings, put a blank line between sub-processes. */
2249 if (print_help_list
)
2250 fputc ('\n', stderr
);
2252 /* Print each piped command as a separate line. */
2253 for (i
= 0; i
< n_commands
; i
++)
2257 for (j
= commands
[i
].argv
; *j
; j
++)
2258 fprintf (stderr
, " %s", *j
);
2260 /* Print a pipe symbol after all but the last command. */
2261 if (i
+ 1 != n_commands
)
2262 fprintf (stderr
, " |");
2263 fprintf (stderr
, "\n");
2267 notice ("\nGo ahead? (y or n) ");
2271 while (getchar () != '\n')
2274 if (i
!= 'y' && i
!= 'Y')
2279 /* Run each piped subprocess. */
2281 for (i
= 0; i
< n_commands
; i
++)
2283 char *errmsg_fmt
, *errmsg_arg
;
2284 char *string
= commands
[i
].argv
[0];
2286 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2287 programname
, temp_filename
,
2288 &errmsg_fmt
, &errmsg_arg
,
2289 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2290 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2291 | (string
== commands
[i
].prog
2292 ? PEXECUTE_SEARCH
: 0)
2293 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2295 if (commands
[i
].pid
== -1)
2296 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2298 if (string
!= commands
[i
].prog
)
2304 /* Wait for all the subprocesses to finish.
2305 We don't care what order they finish in;
2306 we know that N_COMMANDS waits will get them all.
2307 Ignore subprocesses that we don't know about,
2308 since they can be spawned by the process that exec'ed us. */
2313 for (i
= 0; i
< n_commands
; )
2319 pid
= pwait (commands
[i
].pid
, &status
, 0);
2323 for (j
= 0; j
< n_commands
; j
++)
2324 if (commands
[j
].pid
== pid
)
2329 if (WIFSIGNALED (status
))
2331 fatal ("Internal compiler error: program %s got fatal signal %d",
2332 commands
[j
].prog
, WTERMSIG (status
));
2336 else if (WIFEXITED (status
)
2337 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2347 /* Find all the switches given to us
2348 and make a vector describing them.
2349 The elements of the vector are strings, one per switch given.
2350 If a switch uses following arguments, then the `part1' field
2351 is the switch itself and the `args' field
2352 is a null-terminated vector containing the following arguments.
2353 The `live_cond' field is 1 if the switch is true in a conditional spec,
2354 -1 if false (overridden by a later switch), and is initialized to zero.
2355 The `validated' field is nonzero if any spec has looked at this switch;
2356 if it remains zero at the end of the run, it must be meaningless. */
2366 static struct switchstr
*switches
;
2368 static int n_switches
;
2373 const char *language
;
2376 /* Also a vector of input files specified. */
2378 static struct infile
*infiles
;
2380 static int n_infiles
;
2382 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2383 we can tell if there were any user supplied any files or libraries. */
2385 static int added_libraries
;
2387 /* And a vector of corresponding output files is made up later. */
2389 static const char **outfiles
;
2391 /* Used to track if none of the -B paths are used. */
2394 /* Used to track if standard path isn't used and -b or -V is specified. */
2395 static int warn_std
;
2397 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2398 static int *warn_std_ptr
= 0;
2401 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2403 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2404 is true if we should look for an executable suffix as well. */
2407 convert_filename (name
, do_exe
)
2417 len
= strlen (name
);
2419 #ifdef HAVE_OBJECT_SUFFIX
2420 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2422 && name
[len
- 2] == '.'
2423 && name
[len
- 1] == 'o')
2425 obstack_grow (&obstack
, name
, len
- 2);
2426 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2427 name
= obstack_finish (&obstack
);
2431 #ifdef HAVE_EXECUTABLE_SUFFIX
2432 /* If there is no filetype, make it the executable suffix (which includes
2433 the "."). But don't get confused if we have just "-o". */
2434 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2437 for (i
= len
- 1; i
>= 0; i
--)
2438 if (name
[i
] == '/' || name
[i
] == DIR_SEPARATOR
)
2441 for (i
++; i
< len
; i
++)
2445 obstack_grow (&obstack
, name
, len
);
2446 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2447 name
= obstack_finish (&obstack
);
2454 /* Display the command line switches accepted by gcc. */
2458 printf ("Usage: %s [options] file...\n", programname
);
2459 printf ("Options:\n");
2461 printf (" --help Display this information\n");
2463 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2464 printf (" -dumpspecs Display all of the built in spec strings\n");
2465 printf (" -dumpversion Display the version of the compiler\n");
2466 printf (" -dumpmachine Display the compiler's target processor\n");
2467 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2468 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2469 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2470 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2471 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2472 printf (" -print-multi-lib Display the mapping between command line options and\n");
2473 printf (" multiple library search directories\n");
2474 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2475 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2476 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2477 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2478 printf (" -save-temps Do not delete intermediate files\n");
2479 printf (" -pipe Use pipes rather than intermediate files\n");
2480 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2481 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2482 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2483 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2484 printf (" -V <version> Run gcc version number <version>, if installed\n");
2485 printf (" -v Display the programs invoked by the compiler\n");
2486 printf (" -E Preprocess only; do not compile, assemble or link\n");
2487 printf (" -S Compile only; do not assemble or link\n");
2488 printf (" -c Compile and assemble, but do not link\n");
2489 printf (" -o <file> Place the output into <file>\n");
2490 printf (" -x <language> Specify the language of the following input files\n");
2491 printf (" Permissable languages include: c c++ assembler none\n");
2492 printf (" 'none' means revert to the default behaviour of\n");
2493 printf (" guessing the language based on the file's extension\n");
2495 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2496 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2498 printf ("on to these processes the -W<letter> options must be used.\n");
2500 /* The rest of the options are displayed by invocations of the various
2505 add_preprocessor_option (option
, len
)
2506 const char * option
;
2509 n_preprocessor_options
++;
2511 if (! preprocessor_options
)
2512 preprocessor_options
2513 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2515 preprocessor_options
2516 = (char **) xrealloc (preprocessor_options
,
2517 n_preprocessor_options
* sizeof (char *));
2519 preprocessor_options
[n_preprocessor_options
- 1] =
2520 save_string (option
, len
);
2524 add_assembler_option (option
, len
)
2525 const char * option
;
2528 n_assembler_options
++;
2530 if (! assembler_options
)
2532 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2535 = (char **) xrealloc (assembler_options
,
2536 n_assembler_options
* sizeof (char *));
2538 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2542 add_linker_option (option
, len
)
2543 const char * option
;
2548 if (! linker_options
)
2550 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2553 = (char **) xrealloc (linker_options
,
2554 n_linker_options
* sizeof (char *));
2556 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2559 /* Create the vector `switches' and its contents.
2560 Store its length in `n_switches'. */
2563 process_command (argc
, argv
)
2570 char *spec_lang
= 0;
2571 int last_language_n_infiles
;
2574 int lang_n_infiles
= 0;
2576 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2580 added_libraries
= 0;
2582 /* Figure compiler version from version string. */
2584 compiler_version
= temp1
=
2585 save_string (version_string
, strlen (version_string
));
2586 for (; *temp1
; ++temp1
)
2595 /* Set up the default search paths. */
2597 if (gcc_exec_prefix
)
2599 int len
= strlen (gcc_exec_prefix
);
2600 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2601 && (gcc_exec_prefix
[len
-1] == '/'
2602 || gcc_exec_prefix
[len
-1] == DIR_SEPARATOR
))
2604 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2605 if ((*temp
== '/' || *temp
== DIR_SEPARATOR
)
2606 && strncmp (temp
+1, "lib", 3) == 0
2607 && (temp
[4] == '/' || temp
[4] == DIR_SEPARATOR
)
2608 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2609 len
-= sizeof ("/lib/gcc-lib/") - 1;
2612 set_std_prefix (gcc_exec_prefix
, len
);
2613 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2614 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2617 /* COMPILER_PATH and LIBRARY_PATH have values
2618 that are lists of directory names with colons. */
2620 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2623 const char *startp
, *endp
;
2624 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2626 startp
= endp
= temp
;
2629 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2631 strncpy (nstore
, startp
, endp
-startp
);
2633 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2634 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2636 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2637 nstore
[endp
-startp
+1] = 0;
2640 nstore
[endp
-startp
] = 0;
2641 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2642 add_prefix (&include_prefixes
,
2643 concat (nstore
, "include", NULL_PTR
),
2647 endp
= startp
= endp
+ 1;
2654 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2655 if (temp
&& *cross_compile
== '0')
2657 const char *startp
, *endp
;
2658 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2660 startp
= endp
= temp
;
2663 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2665 strncpy (nstore
, startp
, endp
-startp
);
2667 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2668 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2670 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2671 nstore
[endp
-startp
+1] = 0;
2674 nstore
[endp
-startp
] = 0;
2675 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2679 endp
= startp
= endp
+ 1;
2686 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2687 GET_ENV_PATH_LIST (temp
, "LPATH");
2688 if (temp
&& *cross_compile
== '0')
2690 const char *startp
, *endp
;
2691 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2693 startp
= endp
= temp
;
2696 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2698 strncpy (nstore
, startp
, endp
-startp
);
2700 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2701 else if (endp
[-1] != '/' && endp
[-1] != DIR_SEPARATOR
)
2703 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2704 nstore
[endp
-startp
+1] = 0;
2707 nstore
[endp
-startp
] = 0;
2708 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2712 endp
= startp
= endp
+ 1;
2719 /* Convert new-style -- options to old-style. */
2720 translate_options (&argc
, &argv
);
2722 #ifdef LANG_SPECIFIC_DRIVER
2723 /* Do language-specific adjustment/addition of flags. */
2724 lang_specific_driver (fatal
, &argc
, &argv
, &added_libraries
);
2727 /* Scan argv twice. Here, the first time, just count how many switches
2728 there will be in their vector, and how many input files in theirs.
2729 Here we also parse the switches that cc itself uses (e.g. -v). */
2731 for (i
= 1; i
< argc
; i
++)
2733 if (! strcmp (argv
[i
], "-dumpspecs"))
2735 struct spec_list
*sl
;
2737 for (sl
= specs
; sl
; sl
= sl
->next
)
2738 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2741 else if (! strcmp (argv
[i
], "-dumpversion"))
2743 printf ("%s\n", spec_version
);
2746 else if (! strcmp (argv
[i
], "-dumpmachine"))
2748 printf ("%s\n", spec_machine
);
2751 else if (strcmp (argv
[i
], "-fhelp") == 0)
2753 /* translate_options () has turned --help into -fhelp. */
2754 print_help_list
= 1;
2756 /* We will be passing a dummy file on to the sub-processes. */
2760 add_preprocessor_option ("--help", 6);
2761 add_assembler_option ("--help", 6);
2762 add_linker_option ("--help", 6);
2764 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2765 print_search_dirs
= 1;
2766 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2767 print_file_name
= "libgcc.a";
2768 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2769 print_file_name
= argv
[i
] + 17;
2770 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2771 print_prog_name
= argv
[i
] + 17;
2772 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2773 print_multi_lib
= 1;
2774 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2775 print_multi_directory
= 1;
2776 else if (! strncmp (argv
[i
], "-Wa,", 4))
2779 /* Pass the rest of this option to the assembler. */
2781 /* Split the argument at commas. */
2783 for (j
= 4; argv
[i
][j
]; j
++)
2784 if (argv
[i
][j
] == ',')
2786 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2790 /* Record the part after the last comma. */
2791 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2793 else if (! strncmp (argv
[i
], "-Wp,", 4))
2796 /* Pass the rest of this option to the preprocessor. */
2798 /* Split the argument at commas. */
2800 for (j
= 4; argv
[i
][j
]; j
++)
2801 if (argv
[i
][j
] == ',')
2803 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2807 /* Record the part after the last comma. */
2808 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2810 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2811 /* The +e options to the C++ front-end. */
2813 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2816 /* Split the argument at commas. */
2817 for (j
= 3; argv
[i
][j
]; j
++)
2818 n_infiles
+= (argv
[i
][j
] == ',');
2820 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2823 fatal ("argument to `-Xlinker' is missing");
2828 else if (strncmp (argv
[i
], "-l", 2) == 0)
2830 else if (strcmp (argv
[i
], "-save-temps") == 0)
2832 save_temps_flag
= 1;
2835 else if (strcmp (argv
[i
], "-specs") == 0)
2837 struct user_specs
*user
= (struct user_specs
*)
2838 xmalloc (sizeof (struct user_specs
));
2840 fatal ("argument to `-specs' is missing");
2842 user
->next
= (struct user_specs
*)0;
2843 user
->filename
= argv
[i
];
2844 if (user_specs_tail
)
2845 user_specs_tail
->next
= user
;
2847 user_specs_head
= user
;
2848 user_specs_tail
= user
;
2850 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2852 struct user_specs
*user
= (struct user_specs
*)
2853 xmalloc (sizeof (struct user_specs
));
2854 if (strlen (argv
[i
]) == 7)
2855 fatal ("argument to `-specs=' is missing");
2857 user
->next
= (struct user_specs
*)0;
2858 user
->filename
= argv
[i
]+7;
2859 if (user_specs_tail
)
2860 user_specs_tail
->next
= user
;
2862 user_specs_head
= user
;
2863 user_specs_tail
= user
;
2865 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2867 register char *p
= &argv
[i
][1];
2868 register int c
= *p
;
2874 if (p
[1] == 0 && i
+ 1 == argc
)
2875 fatal ("argument to `-b' is missing");
2877 spec_machine
= argv
[++i
];
2879 spec_machine
= p
+ 1;
2881 warn_std_ptr
= &warn_std
;
2887 if (p
[1] == 0 && i
+ 1 == argc
)
2888 fatal ("argument to `-B' is missing");
2893 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2894 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2896 add_prefix (&include_prefixes
, concat (value
, "include",
2898 NULL_PTR
, 1, 0, NULL_PTR
);
2900 /* As a kludge, if the arg is "[foo/]stageN/", just add
2901 "[foo/]include" to the include prefix. */
2903 int len
= strlen (value
);
2906 && (value
[len
- 8] == '/'
2907 || value
[len
- 8] == DIR_SEPARATOR
)))
2908 && strncmp (value
+ len
- 7, "stage", 5) == 0
2909 && ISDIGIT (value
[len
- 2])
2910 && (value
[len
- 1] == '/'
2911 || value
[len
- 1] == DIR_SEPARATOR
))
2914 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2918 char *string
= xmalloc (len
+ 1);
2919 strncpy (string
, value
, len
-7);
2920 strcpy (string
+len
-7, "include");
2921 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2930 case 'v': /* Print our subcommands and print versions. */
2932 /* If they do anything other than exactly `-v', don't set
2933 verbose_flag; rather, continue on to give the error. */
2941 if (p
[1] == 0 && i
+ 1 == argc
)
2942 fatal ("argument to `-V' is missing");
2944 spec_version
= argv
[++i
];
2946 spec_version
= p
+ 1;
2947 compiler_version
= spec_version
;
2948 warn_std_ptr
= &warn_std
;
2950 /* Validate the version number. Use the same checks
2951 done when inserting it into a spec.
2953 The format of the version string is
2954 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2956 const char *v
= compiler_version
;
2958 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2959 while (! ISDIGIT (*v
))
2962 if (v
> compiler_version
&& v
[-1] != '-')
2963 fatal ("invalid version number format");
2965 /* Set V after the first period. */
2966 while (ISDIGIT (*v
))
2970 fatal ("invalid version number format");
2973 while (ISDIGIT (*v
))
2976 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
2977 fatal ("invalid version number format");
2993 #if defined(HAVE_EXECUTABLE_SUFFIX)
2998 /* Forward scan, just in case -S or -c is specified
3005 if (argv
[j
][0] == '-')
3007 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3013 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3014 j
+= skip
- (argv
[j
][2] != 0);
3015 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3022 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3024 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3026 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3034 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3035 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3036 else if (WORD_SWITCH_TAKES_ARG (p
))
3037 i
+= WORD_SWITCH_TAKES_ARG (p
);
3047 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3048 fatal ("cannot specify -o with -c or -S and multiple compilations");
3050 /* Set up the search paths before we go looking for config files. */
3052 /* These come before the md prefixes so that we will find gcc's subcommands
3053 (such as cpp) rather than those of the host system. */
3054 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3055 as well as trying the machine and the version. */
3057 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3058 0, 2, warn_std_ptr
);
3059 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3060 0, 2, warn_std_ptr
);
3063 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3064 0, 1, warn_std_ptr
);
3065 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3066 0, 1, warn_std_ptr
);
3068 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3069 dir_separator_str
, NULL_PTR
);
3071 /* If tooldir is relative, base it on exec_prefixes. A relative
3072 tooldir lets us move the installed tree as a unit.
3074 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3075 directories, so that we can search both the user specified directory
3076 and the standard place. */
3078 if (*tooldir_prefix
!= '/' && *tooldir_prefix
!= DIR_SEPARATOR
)
3080 if (gcc_exec_prefix
)
3082 char *gcc_exec_tooldir_prefix
3083 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3084 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3086 add_prefix (&exec_prefixes
,
3087 concat (gcc_exec_tooldir_prefix
, "bin",
3088 dir_separator_str
, NULL_PTR
),
3089 NULL_PTR
, 0, 0, NULL_PTR
);
3090 add_prefix (&startfile_prefixes
,
3091 concat (gcc_exec_tooldir_prefix
, "lib",
3092 dir_separator_str
, NULL_PTR
),
3093 NULL_PTR
, 0, 0, NULL_PTR
);
3096 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3097 dir_separator_str
, spec_version
,
3098 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3101 add_prefix (&exec_prefixes
,
3102 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3103 "BINUTILS", 0, 0, NULL_PTR
);
3104 add_prefix (&startfile_prefixes
,
3105 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3106 "BINUTILS", 0, 0, NULL_PTR
);
3108 /* More prefixes are enabled in main, after we read the specs file
3109 and determine whether this is cross-compilation or not. */
3112 /* Then create the space for the vectors and scan again. */
3114 switches
= ((struct switchstr
*)
3115 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3116 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3119 last_language_n_infiles
= -1;
3121 /* This, time, copy the text of each switch and store a pointer
3122 to the copy in the vector of switches.
3123 Store all the infiles in their vector. */
3125 for (i
= 1; i
< argc
; i
++)
3127 /* Just skip the switches that were handled by the preceding loop. */
3128 if (! strncmp (argv
[i
], "-Wa,", 4))
3130 else if (! strncmp (argv
[i
], "-Wp,", 4))
3132 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3134 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3136 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3138 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3140 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3142 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3144 else if (strcmp (argv
[i
], "-fhelp") == 0)
3148 /* Create a dummy input file, so that we can pass --help on to
3149 the various sub-processes. */
3150 infiles
[n_infiles
].language
= "c";
3151 infiles
[n_infiles
++].name
= "help-dummy";
3153 /* Preserve the --help switch so that it can be caught by the
3155 switches
[n_switches
].part1
= "--help";
3156 switches
[n_switches
].args
= 0;
3157 switches
[n_switches
].live_cond
= 0;
3158 switches
[n_switches
].validated
= 0;
3163 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3165 /* Compensate for the +e options to the C++ front-end;
3166 they're there simply for cfront call-compatibility. We do
3167 some magic in default_compilers to pass them down properly.
3168 Note we deliberately start at the `+' here, to avoid passing
3169 -e0 or -e1 down into the linker. */
3170 switches
[n_switches
].part1
= &argv
[i
][0];
3171 switches
[n_switches
].args
= 0;
3172 switches
[n_switches
].live_cond
= 0;
3173 switches
[n_switches
].validated
= 0;
3176 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3179 /* Split the argument at commas. */
3181 for (j
= 4; argv
[i
][j
]; j
++)
3182 if (argv
[i
][j
] == ',')
3184 infiles
[n_infiles
].language
= "*";
3185 infiles
[n_infiles
++].name
3186 = save_string (argv
[i
] + prev
, j
- prev
);
3189 /* Record the part after the last comma. */
3190 infiles
[n_infiles
].language
= "*";
3191 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3193 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3195 infiles
[n_infiles
].language
= "*";
3196 infiles
[n_infiles
++].name
= argv
[++i
];
3198 else if (strncmp (argv
[i
], "-l", 2) == 0)
3200 infiles
[n_infiles
].language
= "*";
3201 infiles
[n_infiles
++].name
= argv
[i
];
3203 else if (strcmp (argv
[i
], "-specs") == 0)
3205 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3207 /* -save-temps overrides -pipe, so that temp files are produced */
3208 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
3209 error ("Warning: -pipe ignored since -save-temps specified");
3210 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3212 register char *p
= &argv
[i
][1];
3213 register int c
= *p
;
3217 if (p
[1] == 0 && i
+ 1 == argc
)
3218 fatal ("argument to `-x' is missing");
3220 spec_lang
= argv
[++i
];
3223 if (! strcmp (spec_lang
, "none"))
3224 /* Suppress the warning if -xnone comes after the last input
3225 file, because alternate command interfaces like g++ might
3226 find it useful to place -xnone after each input file. */
3229 last_language_n_infiles
= n_infiles
;
3232 switches
[n_switches
].part1
= p
;
3233 /* Deal with option arguments in separate argv elements. */
3234 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3235 || WORD_SWITCH_TAKES_ARG (p
))
3238 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3242 /* Count only the option arguments in separate argv elements. */
3243 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3245 if (i
+ n_args
>= argc
)
3246 fatal ("argument to `-%s' is missing", p
);
3247 switches
[n_switches
].args
3248 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3250 switches
[n_switches
].args
[j
++] = argv
[++i
];
3251 /* Null-terminate the vector. */
3252 switches
[n_switches
].args
[j
] = 0;
3254 else if (index (switches_need_spaces
, c
))
3256 /* On some systems, ld cannot handle some options without
3257 a space. So split the option from its argument. */
3258 char *part1
= (char *) xmalloc (2);
3262 switches
[n_switches
].part1
= part1
;
3263 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3264 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3265 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3266 switches
[n_switches
].args
[1] = 0;
3269 switches
[n_switches
].args
= 0;
3271 switches
[n_switches
].live_cond
= 0;
3272 switches
[n_switches
].validated
= 0;
3273 /* This is always valid, since gcc.c itself understands it. */
3274 if (!strcmp (p
, "save-temps"))
3275 switches
[n_switches
].validated
= 1;
3278 char ch
= switches
[n_switches
].part1
[0];
3279 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3280 switches
[n_switches
].validated
= 1;
3286 #ifdef HAVE_OBJECT_SUFFIX
3287 argv
[i
] = convert_filename (argv
[i
], 0);
3290 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3292 perror_with_name (argv
[i
]);
3297 infiles
[n_infiles
].language
= spec_lang
;
3298 infiles
[n_infiles
++].name
= argv
[i
];
3303 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3304 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3306 switches
[n_switches
].part1
= 0;
3307 infiles
[n_infiles
].name
= 0;
3310 /* Process a spec string, accumulating and running commands. */
3312 /* These variables describe the input file name.
3313 input_file_number is the index on outfiles of this file,
3314 so that the output file name can be stored for later use by %o.
3315 input_basename is the start of the part of the input file
3316 sans all directory names, and basename_length is the number
3317 of characters starting there excluding the suffix .c or whatever. */
3319 const char *input_filename
;
3320 static int input_file_number
;
3321 size_t input_filename_length
;
3322 static int basename_length
;
3323 static const char *input_basename
;
3324 static const char *input_suffix
;
3326 /* These are variables used within do_spec and do_spec_1. */
3328 /* Nonzero if an arg has been started and not yet terminated
3329 (with space, tab or newline). */
3330 static int arg_going
;
3332 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3333 is a temporary file name. */
3334 static int delete_this_arg
;
3336 /* Nonzero means %w has been seen; the next arg to be terminated
3337 is the output file name of this compilation. */
3338 static int this_is_output_file
;
3340 /* Nonzero means %s has been seen; the next arg to be terminated
3341 is the name of a library file and we should try the standard
3342 search dirs for it. */
3343 static int this_is_library_file
;
3345 /* Nonzero means that the input of this command is coming from a pipe. */
3346 static int input_from_pipe
;
3348 /* Process the spec SPEC and run the commands specified therein.
3349 Returns 0 if the spec is successfully processed; -1 if failed. */
3359 delete_this_arg
= 0;
3360 this_is_output_file
= 0;
3361 this_is_library_file
= 0;
3362 input_from_pipe
= 0;
3364 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3366 /* Force out any unfinished command.
3367 If -pipe, this forces out the last command if it ended in `|'. */
3370 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3373 if (argbuf_index
> 0)
3380 /* Process the sub-spec SPEC as a portion of a larger spec.
3381 This is like processing a whole spec except that we do
3382 not initialize at the beginning and we do not supply a
3383 newline by default at the end.
3384 INSWITCH nonzero means don't process %-sequences in SPEC;
3385 in this case, % is treated as an ordinary character.
3386 This is used while substituting switches.
3387 INSWITCH nonzero also causes SPC not to terminate an argument.
3389 Value is zero unless a line was finished
3390 and the command on that line reported an error. */
3393 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3396 const char *soft_matched_part
;
3398 register const char *p
= spec
;
3405 /* If substituting a switch, treat all chars like letters.
3406 Otherwise, NL, SPC, TAB and % are special. */
3407 switch (inswitch
? 'a' : c
)
3410 /* End of line: finish any pending argument,
3411 then run the pending command if one has been started. */
3414 obstack_1grow (&obstack
, 0);
3415 string
= obstack_finish (&obstack
);
3416 if (this_is_library_file
)
3417 string
= find_file (string
);
3418 store_arg (string
, delete_this_arg
, this_is_output_file
);
3419 if (this_is_output_file
)
3420 outfiles
[input_file_number
] = string
;
3424 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3426 for (i
= 0; i
< n_switches
; i
++)
3427 if (!strcmp (switches
[i
].part1
, "pipe"))
3430 /* A `|' before the newline means use a pipe here,
3431 but only if -pipe was specified.
3432 Otherwise, execute now and don't pass the `|' as an arg. */
3435 input_from_pipe
= 1;
3436 switches
[i
].validated
= 1;
3443 if (argbuf_index
> 0)
3449 /* Reinitialize for a new command, and for a new argument. */
3452 delete_this_arg
= 0;
3453 this_is_output_file
= 0;
3454 this_is_library_file
= 0;
3455 input_from_pipe
= 0;
3459 /* End any pending argument. */
3462 obstack_1grow (&obstack
, 0);
3463 string
= obstack_finish (&obstack
);
3464 if (this_is_library_file
)
3465 string
= find_file (string
);
3466 store_arg (string
, delete_this_arg
, this_is_output_file
);
3467 if (this_is_output_file
)
3468 outfiles
[input_file_number
] = string
;
3472 obstack_1grow (&obstack
, c
);
3478 /* Space or tab ends an argument if one is pending. */
3481 obstack_1grow (&obstack
, 0);
3482 string
= obstack_finish (&obstack
);
3483 if (this_is_library_file
)
3484 string
= find_file (string
);
3485 store_arg (string
, delete_this_arg
, this_is_output_file
);
3486 if (this_is_output_file
)
3487 outfiles
[input_file_number
] = string
;
3489 /* Reinitialize for a new argument. */
3491 delete_this_arg
= 0;
3492 this_is_output_file
= 0;
3493 this_is_library_file
= 0;
3500 fatal ("Invalid specification! Bug in cc.");
3503 obstack_grow (&obstack
, input_basename
, basename_length
);
3508 delete_this_arg
= 2;
3511 /* Dump out the directories specified with LIBRARY_PATH,
3512 followed by the absolute directories
3513 that we search for startfiles. */
3516 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3517 size_t bufsize
= 100;
3518 char *buffer
= (char *) xmalloc (bufsize
);
3521 for (; pl
; pl
= pl
->next
)
3523 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3524 /* Used on systems which record the specified -L dirs
3525 and use them to search for dynamic linking. */
3526 /* Relative directories always come from -B,
3527 and it is better not to use them for searching
3528 at run time. In particular, stage1 loses */
3529 if (pl
->prefix
[0] != '/' && pl
->prefix
[0] != DIR_SEPARATOR
)
3532 /* Try subdirectory if there is one. */
3533 if (multilib_dir
!= NULL
)
3537 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3539 bufsize
= (strlen (pl
->prefix
)
3540 + strlen (machine_suffix
)) * 2 + 1;
3541 buffer
= (char *) xrealloc (buffer
, bufsize
);
3542 strcpy (buffer
, pl
->prefix
);
3543 strcat (buffer
, machine_suffix
);
3544 if (is_directory (buffer
, multilib_dir
, 1))
3546 do_spec_1 ("-L", 0, NULL_PTR
);
3547 #ifdef SPACE_AFTER_L_OPTION
3548 do_spec_1 (" ", 0, NULL_PTR
);
3550 do_spec_1 (buffer
, 1, NULL_PTR
);
3551 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3552 /* Make this a separate argument. */
3553 do_spec_1 (" ", 0, NULL_PTR
);
3556 if (!pl
->require_machine_suffix
)
3558 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3560 do_spec_1 ("-L", 0, NULL_PTR
);
3561 #ifdef SPACE_AFTER_L_OPTION
3562 do_spec_1 (" ", 0, NULL_PTR
);
3564 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3565 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3566 /* Make this a separate argument. */
3567 do_spec_1 (" ", 0, NULL_PTR
);
3573 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3575 do_spec_1 ("-L", 0, NULL_PTR
);
3576 #ifdef SPACE_AFTER_L_OPTION
3577 do_spec_1 (" ", 0, NULL_PTR
);
3579 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3580 /* Remove slash from machine_suffix. */
3581 if (strlen (machine_suffix
) >= bufsize
)
3582 bufsize
= strlen (machine_suffix
) * 2 + 1;
3583 buffer
= (char *) xrealloc (buffer
, bufsize
);
3584 strcpy (buffer
, machine_suffix
);
3585 idx
= strlen (buffer
);
3586 if (buffer
[idx
- 1] == '/'
3587 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3588 buffer
[idx
- 1] = 0;
3589 do_spec_1 (buffer
, 1, NULL_PTR
);
3590 /* Make this a separate argument. */
3591 do_spec_1 (" ", 0, NULL_PTR
);
3594 if (!pl
->require_machine_suffix
)
3596 if (is_directory (pl
->prefix
, "", 1))
3598 do_spec_1 ("-L", 0, NULL_PTR
);
3599 #ifdef SPACE_AFTER_L_OPTION
3600 do_spec_1 (" ", 0, NULL_PTR
);
3602 /* Remove slash from pl->prefix. */
3603 if (strlen (pl
->prefix
) >= bufsize
)
3604 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3605 buffer
= (char *) xrealloc (buffer
, bufsize
);
3606 strcpy (buffer
, pl
->prefix
);
3607 idx
= strlen (buffer
);
3608 if (buffer
[idx
- 1] == '/'
3609 || buffer
[idx
- 1] == DIR_SEPARATOR
)
3610 buffer
[idx
- 1] = 0;
3611 do_spec_1 (buffer
, 1, NULL_PTR
);
3612 /* Make this a separate argument. */
3613 do_spec_1 (" ", 0, NULL_PTR
);
3622 /* %efoo means report an error with `foo' as error message
3623 and don't execute any more commands for this file. */
3627 while (*p
!= 0 && *p
!= '\n') p
++;
3628 buf
= (char *) alloca (p
- q
+ 1);
3629 strncpy (buf
, q
, p
- q
);
3639 if (save_temps_flag
)
3641 obstack_grow (&obstack
, input_basename
, basename_length
);
3642 delete_this_arg
= 0;
3646 #ifdef MKTEMP_EACH_FILE
3647 /* ??? This has a problem: the total number of
3648 values mktemp can return is limited.
3649 That matters for the names of object files.
3650 In 2.4, do something about that. */
3651 struct temp_name
*t
;
3653 const char *suffix
= p
;
3655 if (p
[0] == '%' && p
[1] == 'O')
3658 /* We don't support extra suffix characters after %O. */
3659 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
3661 suffix
= OBJECT_SUFFIX
;
3662 suffix_length
= strlen (OBJECT_SUFFIX
);
3666 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
3668 suffix_length
= p
- suffix
;
3671 /* See if we already have an association of %g/%u/%U and
3673 for (t
= temp_names
; t
; t
= t
->next
)
3674 if (t
->length
== suffix_length
3675 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
3676 && t
->unique
== (c
!= 'g'))
3679 /* Make a new association if needed. %u requires one. */
3680 if (t
== 0 || c
== 'u')
3684 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3685 t
->next
= temp_names
;
3688 t
->length
= suffix_length
;
3689 t
->suffix
= save_string (suffix
, suffix_length
);
3690 t
->unique
= (c
!= 'g');
3691 temp_filename
= make_temp_file (t
->suffix
);
3692 temp_filename_length
= strlen (temp_filename
);
3693 t
->filename
= temp_filename
;
3694 t
->filename_length
= temp_filename_length
;
3697 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3698 delete_this_arg
= 1;
3700 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3701 if (c
== 'u' || c
== 'U')
3707 sprintf (buff
, "%d", unique
);
3708 obstack_grow (&obstack
, buff
, strlen (buff
));
3711 delete_this_arg
= 1;
3717 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3723 struct prefix_list
*pl
= include_prefixes
.plist
;
3725 if (gcc_exec_prefix
)
3727 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3728 /* Make this a separate argument. */
3729 do_spec_1 (" ", 0, NULL_PTR
);
3730 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3731 do_spec_1 (" ", 0, NULL_PTR
);
3734 for (; pl
; pl
= pl
->next
)
3736 do_spec_1 ("-isystem", 1, NULL_PTR
);
3737 /* Make this a separate argument. */
3738 do_spec_1 (" ", 0, NULL_PTR
);
3739 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3740 do_spec_1 (" ", 0, NULL_PTR
);
3747 int max
= n_infiles
;
3748 #ifdef LANG_SPECIFIC_DRIVER
3749 max
+= lang_specific_extra_outfiles
;
3751 for (i
= 0; i
< max
; i
++)
3753 store_arg (outfiles
[i
], 0, 0);
3758 obstack_grow (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
3763 this_is_library_file
= 1;
3767 this_is_output_file
= 1;
3772 int cur_index
= argbuf_index
;
3773 /* Handle the {...} following the %W. */
3776 p
= handle_braces (p
+ 1);
3779 /* If any args were output, mark the last one for deletion
3781 if (argbuf_index
!= cur_index
)
3782 record_temp_file (argbuf
[argbuf_index
- 1], 0, 1);
3786 /* %x{OPTION} records OPTION for %X to output. */
3792 /* Skip past the option value and make a copy. */
3797 string
= save_string (p1
+ 1, p
- p1
- 2);
3799 /* See if we already recorded this option. */
3800 for (i
= 0; i
< n_linker_options
; i
++)
3801 if (! strcmp (string
, linker_options
[i
]))
3807 /* This option is new; add it. */
3808 add_linker_option (string
, strlen (string
));
3812 /* Dump out the options accumulated previously using %x. */
3814 for (i
= 0; i
< n_linker_options
; i
++)
3816 do_spec_1 (linker_options
[i
], 1, NULL_PTR
);
3817 /* Make each accumulated option a separate argument. */
3818 do_spec_1 (" ", 0, NULL_PTR
);
3822 /* Dump out the options accumulated previously using -Wa,. */
3824 for (i
= 0; i
< n_assembler_options
; i
++)
3826 do_spec_1 (assembler_options
[i
], 1, NULL_PTR
);
3827 /* Make each accumulated option a separate argument. */
3828 do_spec_1 (" ", 0, NULL_PTR
);
3832 /* Dump out the options accumulated previously using -Wp,. */
3834 for (i
= 0; i
< n_preprocessor_options
; i
++)
3836 do_spec_1 (preprocessor_options
[i
], 1, NULL_PTR
);
3837 /* Make each accumulated option a separate argument. */
3838 do_spec_1 (" ", 0, NULL_PTR
);
3842 /* Here are digits and numbers that just process
3843 a certain constant string as a spec. */
3846 value
= do_spec_1 (cc1_spec
, 0, NULL_PTR
);
3852 value
= do_spec_1 (cc1plus_spec
, 0, NULL_PTR
);
3858 value
= do_spec_1 (asm_spec
, 0, NULL_PTR
);
3864 value
= do_spec_1 (asm_final_spec
, 0, NULL_PTR
);
3870 value
= do_spec_1 (signed_char_spec
, 0, NULL_PTR
);
3876 value
= do_spec_1 (cpp_spec
, 0, NULL_PTR
);
3882 value
= do_spec_1 (endfile_spec
, 0, NULL_PTR
);
3888 value
= do_spec_1 (link_spec
, 0, NULL_PTR
);
3894 value
= do_spec_1 (lib_spec
, 0, NULL_PTR
);
3900 value
= do_spec_1 (libgcc_spec
, 0, NULL_PTR
);
3907 char *x
= (char *) alloca (strlen (cpp_predefines
) + 1);
3911 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3915 if (! strncmp (y
, "-D", 2))
3916 /* Copy the whole option. */
3917 while (*y
&& *y
!= ' ' && *y
!= '\t')
3919 else if (*y
== ' ' || *y
== '\t')
3920 /* Copy whitespace to the result. */
3922 /* Don't copy other options. */
3929 value
= do_spec_1 (buf
, 0, NULL_PTR
);
3937 char *x
= (char *) alloca (strlen (cpp_predefines
) * 4 + 1);
3941 /* Copy all of CPP_PREDEFINES into BUF,
3942 but put __ after every -D and at the end of each arg. */
3946 if (! strncmp (y
, "-D", 2))
3955 && ! ISUPPER ((unsigned char)*(y
+1))))
3957 /* Stick __ at front of macro name. */
3960 /* Arrange to stick __ at the end as well. */
3964 /* Copy the macro name. */
3965 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
3974 /* Copy the value given, if any. */
3975 while (*y
&& *y
!= ' ' && *y
!= '\t')
3978 else if (*y
== ' ' || *y
== '\t')
3979 /* Copy whitespace to the result. */
3981 /* Don't copy -A options */
3987 /* Copy all of CPP_PREDEFINES into BUF,
3988 but put __ after every -D. */
3992 if (! strncmp (y
, "-D", 2))
3998 && ! ISUPPER ((unsigned char)*(y
+1))))
4000 /* Stick -D__ at front of macro name. */
4006 /* Copy the macro name. */
4007 while (*y
&& *y
!= '=' && *y
!= ' ' && *y
!= '\t')
4010 /* Copy the value given, if any. */
4011 while (*y
&& *y
!= ' ' && *y
!= '\t')
4016 /* Do not copy this macro - we have just done it before */
4017 while (*y
&& *y
!= ' ' && *y
!= '\t')
4021 else if (*y
== ' ' || *y
== '\t')
4022 /* Copy whitespace to the result. */
4024 /* Don't copy -A options */
4030 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4034 if (! strncmp (y
, "-A", 2))
4035 /* Copy the whole option. */
4036 while (*y
&& *y
!= ' ' && *y
!= '\t')
4038 else if (*y
== ' ' || *y
== '\t')
4039 /* Copy whitespace to the result. */
4041 /* Don't copy other options. */
4048 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4055 value
= do_spec_1 (startfile_spec
, 0, NULL_PTR
);
4060 /* Here we define characters other than letters and digits. */
4063 p
= handle_braces (p
);
4069 obstack_1grow (&obstack
, '%');
4073 do_spec_1 (soft_matched_part
, 1, NULL_PTR
);
4074 do_spec_1 (" ", 0, NULL_PTR
);
4077 /* Process a string found as the value of a spec given by name.
4078 This feature allows individual machine descriptions
4079 to add and use their own specs.
4080 %[...] modifies -D options the way %P does;
4081 %(...) uses the spec unmodified. */
4083 error ("Warning: use of obsolete %%[ operator in specs");
4086 const char *name
= p
;
4087 struct spec_list
*sl
;
4090 /* The string after the S/P is the name of a spec that is to be
4092 while (*p
&& *p
!= ')' && *p
!= ']')
4095 /* See if it's in the list */
4096 for (len
= p
- name
, sl
= specs
; sl
; sl
= sl
->next
)
4097 if (sl
->name_len
== len
&& !strncmp (sl
->name
, name
, len
))
4099 name
= *(sl
->ptr_spec
);
4101 notice ("Processing spec %c%s%c, which is '%s'\n",
4102 c
, sl
->name
, (c
== '(') ? ')' : ']', name
);
4111 value
= do_spec_1 (name
, 0, NULL_PTR
);
4117 char *x
= (char *) alloca (strlen (name
) * 2 + 1);
4119 const char *y
= name
;
4122 /* Copy all of NAME into BUF, but put __ after
4123 every -D and at the end of each arg, */
4126 if (! strncmp (y
, "-D", 2))
4136 else if (flag
&& (*y
== ' ' || *y
== '\t' || *y
== '='
4137 || *y
== '}' || *y
== 0))
4150 value
= do_spec_1 (buf
, 0, NULL_PTR
);
4156 /* Discard the closing paren or bracket. */
4164 int c1
= *p
++; /* Select first or second version number. */
4165 char *v
= compiler_version
;
4168 /* The format of the version string is
4169 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4171 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4172 while (! ISDIGIT (*v
))
4174 if (v
> compiler_version
&& v
[-1] != '-')
4177 /* If desired, advance to second version number. */
4180 /* Set V after the first period. */
4181 while (ISDIGIT (*v
))
4188 /* Set Q at the next period or at the end. */
4190 while (ISDIGIT (*q
))
4192 if (*q
!= 0 && *q
!= ' ' && *q
!= '.' && *q
!= '-')
4195 /* Put that part into the command. */
4196 obstack_grow (&obstack
, v
, q
- v
);
4202 if (input_from_pipe
)
4203 do_spec_1 ("-", 0, NULL_PTR
);
4212 /* Backslash: treat next character as ordinary. */
4217 /* Ordinary character: put it into the current argument. */
4218 obstack_1grow (&obstack
, c
);
4222 return 0; /* End of string */
4225 /* Return 0 if we call do_spec_1 and that returns -1. */
4229 register const char *p
;
4231 const char *filter
, *body
= NULL
, *endbody
= NULL
;
4235 int include_blanks
= 1;
4238 /* A '^' after the open-brace means to not give blanks before args. */
4239 include_blanks
= 0, ++p
;
4242 /* A `|' after the open-brace means,
4243 if the test fails, output a single minus sign rather than nothing.
4244 This is used in %{|!pipe:...}. */
4248 negate
= suffix
= 0;
4251 /* A `!' after the open-brace negates the condition:
4252 succeed if the specified switch is not present. */
4256 /* A `.' after the open-brace means test against the current suffix. */
4266 while (*p
!= ':' && *p
!= '}' && *p
!= '|') p
++;
4268 if (*p
== '|' && pipe_p
)
4275 register int count
= 1;
4276 register const char *q
= p
;
4278 while (*q
++ != ':') continue;
4294 body
= p
, endbody
= p
+1;
4299 int found
= (input_suffix
!= 0
4300 && (long) strlen (input_suffix
) == (long)(p
- filter
)
4301 && strncmp (input_suffix
, filter
, p
- filter
) == 0);
4307 && do_spec_1 (save_string (body
, endbody
-body
-1), 0, NULL_PTR
) < 0)
4310 else if (p
[-1] == '*' && p
[0] == '}')
4312 /* Substitute all matching switches as separate args. */
4315 for (i
= 0; i
< n_switches
; i
++)
4316 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4317 && check_live_switch (i
, p
- filter
))
4318 give_switch (i
, 0, include_blanks
);
4322 /* Test for presence of the specified switch. */
4326 /* If name specified ends in *, as in {x*:...},
4327 check for %* and handle that case. */
4328 if (p
[-1] == '*' && !negate
)
4331 const char *r
= body
;
4333 /* First see whether we have %*. */
4337 if (*r
== '%' && r
[1] == '*')
4341 /* If we do, handle that case. */
4344 /* Substitute all matching switches as separate args.
4345 But do this by substituting for %*
4346 in the text that follows the colon. */
4348 unsigned hard_match_len
= p
- filter
- 1;
4349 char *string
= save_string (body
, endbody
- body
- 1);
4351 for (i
= 0; i
< n_switches
; i
++)
4352 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4353 && check_live_switch (i
, -1))
4355 do_spec_1 (string
, 0, &switches
[i
].part1
[hard_match_len
]);
4356 /* Pass any arguments this switch has. */
4357 give_switch (i
, 1, 1);
4360 /* We didn't match. Try again. */
4367 /* If name specified ends in *, as in {x*:...},
4368 check for presence of any switch name starting with x. */
4371 for (i
= 0; i
< n_switches
; i
++)
4373 unsigned hard_match_len
= p
- filter
- 1;
4375 if (!strncmp (switches
[i
].part1
, filter
, hard_match_len
)
4376 && check_live_switch (i
, hard_match_len
))
4382 /* Otherwise, check for presence of exact name specified. */
4385 for (i
= 0; i
< n_switches
; i
++)
4387 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
4388 && switches
[i
].part1
[p
- filter
] == 0
4389 && check_live_switch (i
, -1))
4397 /* If it is as desired (present for %{s...}, absent for %{!s...})
4398 then substitute either the switch or the specified
4399 conditional text. */
4400 if (present
!= negate
)
4404 give_switch (i
, 0, include_blanks
);
4408 if (do_spec_1 (save_string (body
, endbody
- body
- 1),
4415 /* Here if a %{|...} conditional fails: output a minus sign,
4416 which means "standard output" or "standard input". */
4417 do_spec_1 ("-", 0, NULL_PTR
);
4422 /* We didn't match; try again. */
4429 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4430 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4431 spec, or -1 if either exact match or %* is used.
4433 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4434 whose value does not begin with "no-" is obsoleted by the same value
4435 with the "no-", similarly for a switch with the "no-" prefix. */
4438 check_live_switch (switchnum
, prefix_length
)
4442 const char *name
= switches
[switchnum
].part1
;
4445 /* In the common case of {<at-most-one-letter>*}, a negating
4446 switch would always match, so ignore that case. We will just
4447 send the conflicting switches to the compiler phase. */
4448 if (prefix_length
>= 0 && prefix_length
<= 1)
4451 /* If we already processed this switch and determined if it was
4452 live or not, return our past determination. */
4453 if (switches
[switchnum
].live_cond
!= 0)
4454 return switches
[switchnum
].live_cond
> 0;
4456 /* Now search for duplicate in a manner that depends on the name. */
4460 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4461 if (switches
[i
].part1
[0] == 'O')
4463 switches
[switchnum
].validated
= 1;
4464 switches
[switchnum
].live_cond
= -1;
4469 case 'W': case 'f': case 'm':
4470 if (! strncmp (name
+ 1, "no-", 3))
4472 /* We have Xno-YYY, search for XYYY. */
4473 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4474 if (switches
[i
].part1
[0] == name
[0]
4475 && ! strcmp (&switches
[i
].part1
[1], &name
[4]))
4477 switches
[switchnum
].validated
= 1;
4478 switches
[switchnum
].live_cond
= -1;
4484 /* We have XYYY, search for Xno-YYY. */
4485 for (i
= switchnum
+ 1; i
< n_switches
; i
++)
4486 if (switches
[i
].part1
[0] == name
[0]
4487 && switches
[i
].part1
[1] == 'n'
4488 && switches
[i
].part1
[2] == 'o'
4489 && switches
[i
].part1
[3] == '-'
4490 && !strcmp (&switches
[i
].part1
[4], &name
[1]))
4492 switches
[switchnum
].validated
= 1;
4493 switches
[switchnum
].live_cond
= -1;
4500 /* Otherwise the switch is live. */
4501 switches
[switchnum
].live_cond
= 1;
4505 /* Pass a switch to the current accumulating command
4506 in the same form that we received it.
4507 SWITCHNUM identifies the switch; it is an index into
4508 the vector of switches gcc received, which is `switches'.
4509 This cannot fail since it never finishes a command line.
4511 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4513 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4517 give_switch (switchnum
, omit_first_word
, include_blanks
)
4519 int omit_first_word
;
4522 if (!omit_first_word
)
4524 do_spec_1 ("-", 0, NULL_PTR
);
4525 do_spec_1 (switches
[switchnum
].part1
, 1, NULL_PTR
);
4528 if (switches
[switchnum
].args
!= 0)
4531 for (p
= switches
[switchnum
].args
; *p
; p
++)
4534 do_spec_1 (" ", 0, NULL_PTR
);
4535 do_spec_1 (*p
, 1, NULL_PTR
);
4539 do_spec_1 (" ", 0, NULL_PTR
);
4540 switches
[switchnum
].validated
= 1;
4543 /* Search for a file named NAME trying various prefixes including the
4544 user's -B prefix and some standard ones.
4545 Return the absolute file name found. If nothing is found, return NAME. */
4553 /* Try multilib_dir if it is defined. */
4554 if (multilib_dir
!= NULL
)
4558 try = (char *) alloca (strlen (multilib_dir
) + strlen (name
) + 2);
4559 strcpy (try, multilib_dir
);
4560 strcat (try, dir_separator_str
);
4563 newname
= find_a_file (&startfile_prefixes
, try, R_OK
);
4565 /* If we don't find it in the multi library dir, then fall
4566 through and look for it in the normal places. */
4567 if (newname
!= NULL
)
4571 newname
= find_a_file (&startfile_prefixes
, name
, R_OK
);
4572 return newname
? newname
: name
;
4575 /* Determine whether a directory exists. If LINKER, return 0 for
4576 certain fixed names not needed by the linker. If not LINKER, it is
4577 only important to return 0 if the host machine has a small ARG_MAX
4581 is_directory (path1
, path2
, linker
)
4586 int len1
= strlen (path1
);
4587 int len2
= strlen (path2
);
4588 char *path
= (char *) alloca (3 + len1
+ len2
);
4592 #ifndef SMALL_ARG_MAX
4597 /* Construct the path from the two parts. Ensure the string ends with "/.".
4598 The resulting path will be a directory even if the given path is a
4600 memcpy (path
, path1
, len1
);
4601 memcpy (path
+ len1
, path2
, len2
);
4602 cp
= path
+ len1
+ len2
;
4603 if (cp
[-1] != '/' && cp
[-1] != DIR_SEPARATOR
)
4604 *cp
++ = DIR_SEPARATOR
;
4608 /* Exclude directories that the linker is known to search. */
4611 && strcmp (path
, concat (dir_separator_str
, "lib",
4612 dir_separator_str
, ".", NULL_PTR
)) == 0)
4614 && strcmp (path
, concat (dir_separator_str
, "usr",
4615 dir_separator_str
, "lib",
4616 dir_separator_str
, ".", NULL_PTR
)) == 0)))
4619 return (stat (path
, &st
) >= 0 && S_ISDIR (st
.st_mode
));
4622 /* On fatal signals, delete all the temporary files. */
4625 fatal_error (signum
)
4628 signal (signum
, SIG_DFL
);
4629 delete_failure_queue ();
4630 delete_temp_files ();
4631 /* Get the same signal again, this time not handled,
4632 so its normal effect occurs. */
4633 kill (getpid (), signum
);
4644 int linker_was_run
= 0;
4645 char *explicit_link_files
;
4648 struct user_specs
*uptr
;
4650 p
= argv
[0] + strlen (argv
[0]);
4651 while (p
!= argv
[0] && p
[-1] != '/' && p
[-1] != DIR_SEPARATOR
) --p
;
4654 #ifdef HAVE_LC_MESSAGES
4655 setlocale (LC_MESSAGES
, "");
4657 bindtextdomain (PACKAGE
, localedir
);
4658 textdomain (PACKAGE
);
4660 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4661 signal (SIGINT
, fatal_error
);
4663 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4664 signal (SIGHUP
, fatal_error
);
4666 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4667 signal (SIGTERM
, fatal_error
);
4669 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4670 signal (SIGPIPE
, fatal_error
);
4674 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4676 obstack_init (&obstack
);
4678 /* Build multilib_select, et. al from the separate lines that make up each
4679 multilib selection. */
4681 char **q
= multilib_raw
;
4684 obstack_init (&multilib_obstack
);
4685 while ((p
= *q
++) != (char *) 0)
4686 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4688 obstack_1grow (&multilib_obstack
, 0);
4689 multilib_select
= obstack_finish (&multilib_obstack
);
4691 q
= multilib_matches_raw
;
4692 while ((p
= *q
++) != (char *) 0)
4693 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4695 obstack_1grow (&multilib_obstack
, 0);
4696 multilib_matches
= obstack_finish (&multilib_obstack
);
4700 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4704 obstack_1grow (&multilib_obstack
, ' ');
4705 obstack_grow (&multilib_obstack
,
4706 multilib_defaults_raw
[i
],
4707 strlen (multilib_defaults_raw
[i
]));
4711 obstack_1grow (&multilib_obstack
, 0);
4712 multilib_defaults
= obstack_finish (&multilib_obstack
);
4715 /* Set up to remember the pathname of gcc and any options
4716 needed for collect. We use argv[0] instead of programname because
4717 we need the complete pathname. */
4718 obstack_init (&collect_obstack
);
4719 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4720 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4721 putenv (obstack_finish (&collect_obstack
));
4723 #ifdef INIT_ENVIRONMENT
4724 /* Set up any other necessary machine specific environment variables. */
4725 putenv (INIT_ENVIRONMENT
);
4728 /* Choose directory for temp files. */
4730 #ifndef MKTEMP_EACH_FILE
4731 temp_filename
= choose_temp_base ();
4732 temp_filename_length
= strlen (temp_filename
);
4735 /* Make a table of what switches there are (switches, n_switches).
4736 Make a table of specified input files (infiles, n_infiles).
4737 Decode switches that are handled locally. */
4739 process_command (argc
, argv
);
4744 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4746 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4747 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4750 for (i
= 0; (int)i
< n_switches
; i
++)
4755 obstack_grow (&collect_obstack
, " ", 1);
4758 obstack_grow (&collect_obstack
, "'-", 2);
4759 q
= switches
[i
].part1
;
4760 while ((p
= index (q
,'\'')))
4762 obstack_grow (&collect_obstack
, q
, p
-q
);
4763 obstack_grow (&collect_obstack
, "'\\''", 4);
4766 obstack_grow (&collect_obstack
, q
, strlen (q
));
4767 obstack_grow (&collect_obstack
, "'", 1);
4769 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4771 obstack_grow (&collect_obstack
, " '", 2);
4773 while ((p
= index (q
,'\'')))
4775 obstack_grow (&collect_obstack
, q
, p
-q
);
4776 obstack_grow (&collect_obstack
, "'\\''", 4);
4779 obstack_grow (&collect_obstack
, q
, strlen (q
));
4780 obstack_grow (&collect_obstack
, "'", 1);
4783 obstack_grow (&collect_obstack
, "\0", 1);
4784 putenv (obstack_finish (&collect_obstack
));
4787 /* Initialize the vector of specs to just the default.
4788 This means one element containing 0s, as a terminator. */
4790 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4791 bcopy ((char *) default_compilers
, (char *) compilers
,
4792 sizeof default_compilers
);
4793 n_compilers
= n_default_compilers
;
4795 /* Read specs from a file if there is one. */
4797 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4798 spec_version
, dir_separator_str
, NULL_PTR
);
4799 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4801 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4802 /* Read the specs file unless it is a default one. */
4803 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4804 read_specs (specs_file
, TRUE
);
4808 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4809 for any override of as, ld and libraries. */
4810 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4811 + strlen (just_machine_suffix
)
4812 + sizeof ("specs"));
4814 strcpy (specs_file
, standard_exec_prefix
);
4815 strcat (specs_file
, just_machine_suffix
);
4816 strcat (specs_file
, "specs");
4817 if (access (specs_file
, R_OK
) == 0)
4818 read_specs (specs_file
, TRUE
);
4820 /* Process any user specified specs in the order given on the command
4822 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4824 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4825 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4828 /* If not cross-compiling, look for startfiles in the standard places. */
4829 /* The fact that these are done here, after reading the specs file,
4830 means that it cannot be found in these directories.
4831 But that's okay. It should never be there anyway. */
4832 if (*cross_compile
== '0')
4834 #ifdef MD_EXEC_PREFIX
4835 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4836 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4839 #ifdef MD_STARTFILE_PREFIX
4840 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4844 #ifdef MD_STARTFILE_PREFIX_1
4845 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4849 /* If standard_startfile_prefix is relative, base it on
4850 standard_exec_prefix. This lets us move the installed tree
4851 as a unit. If GCC_EXEC_PREFIX is defined, base
4852 standard_startfile_prefix on that as well. */
4853 if (*standard_startfile_prefix
== '/'
4854 || *standard_startfile_prefix
== DIR_SEPARATOR
4855 || *standard_startfile_prefix
== '$'
4857 /* Check for disk name on MS-DOS-based systems. */
4858 || (standard_startfile_prefix
[1] == ':'
4859 && (standard_startfile_prefix
[2] == DIR_SEPARATOR
4860 || standard_startfile_prefix
[2] == '/'))
4863 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4867 if (gcc_exec_prefix
)
4868 add_prefix (&startfile_prefixes
,
4869 concat (gcc_exec_prefix
, machine_suffix
,
4870 standard_startfile_prefix
, NULL_PTR
),
4871 NULL_PTR
, 0, 0, NULL_PTR
);
4872 add_prefix (&startfile_prefixes
,
4873 concat (standard_exec_prefix
,
4875 standard_startfile_prefix
, NULL_PTR
),
4876 NULL_PTR
, 0, 0, NULL_PTR
);
4879 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4880 "BINUTILS", 0, 0, NULL_PTR
);
4881 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4882 "BINUTILS", 0, 0, NULL_PTR
);
4883 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4884 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4889 if (*standard_startfile_prefix
!= DIR_SEPARATOR
&& gcc_exec_prefix
)
4890 add_prefix (&startfile_prefixes
,
4891 concat (gcc_exec_prefix
, machine_suffix
,
4892 standard_startfile_prefix
, NULL_PTR
),
4893 "BINUTILS", 0, 0, NULL_PTR
);
4896 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4897 if (gcc_exec_prefix
)
4899 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4900 + strlen (spec_version
)
4901 + strlen (spec_machine
) + 3);
4902 strcpy (temp
, gcc_exec_prefix
);
4903 strcat (temp
, spec_machine
);
4904 strcat (temp
, dir_separator_str
);
4905 strcat (temp
, spec_version
);
4906 strcat (temp
, dir_separator_str
);
4907 gcc_exec_prefix
= temp
;
4910 /* Now we have the specs.
4911 Set the `valid' bits for switches that match anything in any spec. */
4913 validate_all_switches ();
4915 /* Now that we have the switches and the specs, set
4916 the subdirectory based on the options. */
4917 set_multilib_dir ();
4919 /* Warn about any switches that no pass was interested in. */
4921 for (i
= 0; (int)i
< n_switches
; i
++)
4922 if (! switches
[i
].validated
)
4923 error ("unrecognized option `-%s'", switches
[i
].part1
);
4925 /* Obey some of the options. */
4927 if (print_search_dirs
)
4929 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4930 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4931 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4935 if (print_file_name
)
4937 printf ("%s\n", find_file (print_file_name
));
4941 if (print_prog_name
)
4943 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4944 printf ("%s\n", (newname
? newname
: print_prog_name
));
4948 if (print_multi_lib
)
4950 print_multilib_info ();
4954 if (print_multi_directory
)
4956 if (multilib_dir
== NULL
)
4959 printf ("%s\n", multilib_dir
);
4963 if (print_help_list
)
4969 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
4970 printf ("Please see the file BUGS (included with the sources) first.\n");
4975 /* We do not exit here. Instead we have created a fake input file
4976 called 'help-dummy' which needs to be compiled, and we pass this
4977 on the the various sub-processes, along with the --help switch. */
4984 /* compiler_version is truncated at the first space when initialized
4985 from version string, so truncate version_string at the first space
4986 before comparing. */
4987 for (n
= 0; version_string
[n
]; n
++)
4988 if (version_string
[n
] == ' ')
4991 if (! strncmp (version_string
, compiler_version
, n
)
4992 && compiler_version
[n
] == 0)
4993 notice ("gcc version %s\n", version_string
);
4995 notice ("gcc driver version %s executing gcc version %s\n",
4996 version_string
, compiler_version
);
5002 if (n_infiles
== added_libraries
)
5003 fatal ("No input files");
5005 /* Make a place to record the compiler output file names
5006 that correspond to the input files. */
5009 #ifdef LANG_SPECIFIC_DRIVER
5010 i
+= lang_specific_extra_outfiles
;
5012 outfiles
= (const char **) xmalloc (i
* sizeof (char *));
5013 bzero ((char *) outfiles
, i
* sizeof (char *));
5015 /* Record which files were specified explicitly as link input. */
5017 explicit_link_files
= xmalloc (n_infiles
);
5018 bzero (explicit_link_files
, n_infiles
);
5020 for (i
= 0; (int)i
< n_infiles
; i
++)
5022 register struct compiler
*cp
= 0;
5023 int this_file_error
= 0;
5025 /* Tell do_spec what to substitute for %i. */
5027 input_filename
= infiles
[i
].name
;
5028 input_filename_length
= strlen (input_filename
);
5029 input_file_number
= i
;
5031 /* Use the same thing in %o, unless cp->spec says otherwise. */
5033 outfiles
[i
] = input_filename
;
5035 /* Figure out which compiler from the file's suffix. */
5037 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5038 infiles
[i
].language
);
5042 /* Ok, we found an applicable compiler. Run its spec. */
5043 /* First say how much of input_filename to substitute for %b */
5044 register const char *p
;
5047 if (cp
->spec
[0][0] == '#')
5048 error ("%s: %s compiler not installed on this system",
5049 input_filename
, &cp
->spec
[0][1]);
5051 input_basename
= input_filename
;
5052 for (p
= input_filename
; *p
; p
++)
5053 if (*p
== '/' || *p
== DIR_SEPARATOR
)
5054 input_basename
= p
+ 1;
5056 /* Find a suffix starting with the last period,
5057 and set basename_length to exclude that suffix. */
5058 basename_length
= strlen (input_basename
);
5059 p
= input_basename
+ basename_length
;
5060 while (p
!= input_basename
&& *p
!= '.') --p
;
5061 if (*p
== '.' && p
!= input_basename
)
5063 basename_length
= p
- input_basename
;
5064 input_suffix
= p
+ 1;
5070 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5072 len
+= strlen (cp
->spec
[j
]);
5075 char *p1
= (char *) xmalloc (len
+ 1);
5078 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5081 strcpy (p1
+ len
, cp
->spec
[j
]);
5082 len
+= strlen (cp
->spec
[j
]);
5085 value
= do_spec (p1
);
5089 this_file_error
= 1;
5092 /* If this file's name does not contain a recognized suffix,
5093 record it as explicit linker input. */
5096 explicit_link_files
[i
] = 1;
5098 /* Clear the delete-on-failure queue, deleting the files in it
5099 if this compilation failed. */
5101 if (this_file_error
)
5103 delete_failure_queue ();
5106 /* If this compilation succeeded, don't delete those files later. */
5107 clear_failure_queue ();
5110 #ifdef LANG_SPECIFIC_DRIVER
5111 if (error_count
== 0)
5113 /* Make sure INPUT_FILE_NUMBER points to first available open
5115 input_file_number
= n_infiles
;
5116 if (lang_specific_pre_link ())
5121 /* Run ld to link all the compiler output files. */
5123 if (error_count
== 0)
5125 int tmp
= execution_count
;
5127 /* We'll use ld if we can't find collect2. */
5128 if (! strcmp (linker_name_spec
, "collect2"))
5130 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5132 linker_name_spec
= "ld";
5134 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5136 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5137 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5139 value
= do_spec (link_command_spec
);
5142 linker_was_run
= (tmp
!= execution_count
);
5145 /* Warn if a -B option was specified but the prefix was never used. */
5146 unused_prefix_warnings (&exec_prefixes
);
5147 unused_prefix_warnings (&startfile_prefixes
);
5149 /* If options said don't run linker,
5150 complain about input files to be given to the linker. */
5152 if (! linker_was_run
&& error_count
== 0)
5153 for (i
= 0; (int)i
< n_infiles
; i
++)
5154 if (explicit_link_files
[i
])
5155 error ("%s: linker input file unused since linking not done",
5158 /* Delete some or all of the temporary files we made. */
5161 delete_failure_queue ();
5162 delete_temp_files ();
5164 if (print_help_list
)
5166 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
5167 printf ("Please see the file BUGS (included with the sources) first.\n");
5170 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
5175 /* Find the proper compilation spec for the file name NAME,
5176 whose length is LENGTH. LANGUAGE is the specified language,
5177 or 0 if this file is to be passed to the linker. */
5179 static struct compiler
*
5180 lookup_compiler (name
, length
, language
)
5183 const char *language
;
5185 struct compiler
*cp
;
5187 /* If this was specified by the user to be a linker input, indicate that. */
5188 if (language
!= 0 && language
[0] == '*')
5191 /* Otherwise, look for the language, if one is spec'd. */
5194 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5195 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5198 error ("language %s not recognized", language
);
5202 /* Look for a suffix. */
5203 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5205 if (/* The suffix `-' matches only the file name `-'. */
5206 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5207 || (strlen (cp
->suffix
) < length
5208 /* See if the suffix matches the end of NAME. */
5210 && ((!strcmp (cp
->suffix
,
5211 name
+ length
- strlen (cp
->suffix
))
5212 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5213 && !strcasecmp (cp
->suffix
,
5214 name
+ length
- strlen (cp
->suffix
)))
5216 && !strcmp (cp
->suffix
,
5217 name
+ length
- strlen (cp
->suffix
))
5221 if (cp
->spec
[0][0] == '@')
5223 struct compiler
*new;
5225 /* An alias entry maps a suffix to a language.
5226 Search for the language; pass 0 for NAME and LENGTH
5227 to avoid infinite recursion if language not found.
5228 Construct the new compiler spec. */
5229 language
= cp
->spec
[0] + 1;
5230 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5231 new->suffix
= cp
->suffix
;
5232 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5233 (char *) new->spec
, sizeof new->spec
);
5237 /* A non-alias entry: return it. */
5249 register PTR value
= (PTR
) malloc (size
);
5251 fatal ("virtual memory exhausted");
5256 xrealloc (old
, size
)
5262 ptr
= (PTR
) realloc (old
, size
);
5264 ptr
= (PTR
) malloc (size
);
5266 fatal ("virtual memory exhausted");
5271 save_string (s
, len
)
5275 register char *result
= xmalloc (len
+ 1);
5277 bcopy (s
, result
, len
);
5283 pfatal_with_name (name
)
5286 perror_with_name (name
);
5287 delete_temp_files ();
5292 perror_with_name (name
)
5295 error ("%s: %s", name
, xstrerror (errno
));
5299 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5300 const char *errmsg_fmt
;
5301 const char *errmsg_arg
;
5305 int save_errno
= errno
;
5307 /* Space for trailing '\0' is in %s. */
5308 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5309 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5315 pfatal_with_name (errmsg_fmt
);
5318 /* More 'friendly' abort that prints the line and file.
5319 config.h can #define abort fancy_abort if you like that sort of thing. */
5324 fatal ("Internal gcc abort.");
5327 /* Output an error message and exit */
5330 fatal
VPROTO((const char *msgid
, ...))
5332 #ifndef ANSI_PROTOTYPES
5337 VA_START (ap
, msgid
);
5339 #ifndef ANSI_PROTOTYPES
5340 msgid
= va_arg (ap
, const char *);
5343 fprintf (stderr
, "%s: ", programname
);
5344 vfprintf (stderr
, _(msgid
), ap
);
5346 fprintf (stderr
, "\n");
5347 delete_temp_files ();
5352 error
VPROTO((const char *msgid
, ...))
5354 #ifndef ANSI_PROTOTYPES
5359 VA_START (ap
, msgid
);
5361 #ifndef ANSI_PROTOTYPES
5362 msgid
= va_arg (ap
, const char *);
5365 fprintf (stderr
, "%s: ", programname
);
5366 vfprintf (stderr
, _(msgid
), ap
);
5369 fprintf (stderr
, "\n");
5373 notice
VPROTO((const char *msgid
, ...))
5375 #ifndef ANSI_PROTOTYPES
5380 VA_START (ap
, msgid
);
5382 #ifndef ANSI_PROTOTYPES
5383 msgid
= va_arg (ap
, const char *);
5386 vfprintf (stderr
, _(msgid
), ap
);
5392 validate_all_switches ()
5394 struct compiler
*comp
;
5395 register const char *p
;
5397 struct spec_list
*spec
;
5399 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5402 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5406 if (c
== '%' && *p
== '{')
5407 /* We have a switch spec. */
5408 validate_switches (p
+ 1);
5412 /* look through the linked list of specs read from the specs file */
5413 for (spec
= specs
; spec
; spec
= spec
->next
)
5415 p
= *(spec
->ptr_spec
);
5417 if (c
== '%' && *p
== '{')
5418 /* We have a switch spec. */
5419 validate_switches (p
+ 1);
5422 p
= link_command_spec
;
5424 if (c
== '%' && *p
== '{')
5425 /* We have a switch spec. */
5426 validate_switches (p
+ 1);
5429 /* Look at the switch-name that comes after START
5430 and mark as valid all supplied switches that match it. */
5433 validate_switches (start
)
5436 register const char *p
= start
;
5451 while (*p
!= ':' && *p
!= '}') p
++;
5455 else if (p
[-1] == '*')
5457 /* Mark all matching switches as valid. */
5459 for (i
= 0; i
< n_switches
; i
++)
5460 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5461 switches
[i
].validated
= 1;
5465 /* Mark an exact matching switch as valid. */
5466 for (i
= 0; i
< n_switches
; i
++)
5468 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5469 && switches
[i
].part1
[p
- filter
] == 0)
5470 switches
[i
].validated
= 1;
5475 /* Check whether a particular argument was used. The first time we
5476 canonicalize the switches to keep only the ones we care about. */
5490 static struct mswitchstr
*mswitches
;
5491 static int n_mswitches
;
5496 struct mswitchstr
*matches
;
5500 /* Break multilib_matches into the component strings of string and replacement
5502 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5506 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5508 q
= multilib_matches
;
5519 matches
[i
].len
= q
- matches
[i
].str
;
5521 matches
[i
].replace
= ++q
;
5522 while (*q
!= ';' && *q
!= '\0')
5528 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5536 /* Now build a list of the replacement string for switches that we care
5537 about. Make sure we allocate at least one entry. This prevents
5538 xmalloc from calling fatal, and prevents us from re-executing this
5541 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5542 * (n_switches
? n_switches
: 1));
5543 for (i
= 0; i
< n_switches
; i
++)
5545 int xlen
= strlen (switches
[i
].part1
);
5546 for (j
= 0; j
< cnt
; j
++)
5547 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5549 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5550 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5551 mswitches
[n_mswitches
].replace
= (char *)0;
5552 mswitches
[n_mswitches
].rep_len
= 0;
5559 for (i
= 0; i
< n_mswitches
; i
++)
5560 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5567 default_arg (p
, len
)
5573 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5575 while (*start
== ' ' || *start
== '\t')
5581 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5584 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5594 /* Work out the subdirectory to use based on the
5595 options. The format of multilib_select is a list of elements.
5596 Each element is a subdirectory name followed by a list of options
5597 followed by a semicolon. gcc will consider each line in turn. If
5598 none of the options beginning with an exclamation point are
5599 present, and all of the other options are present, that
5600 subdirectory will be used. */
5605 char *p
= multilib_select
;
5607 char *this_path
, *this_arg
;
5613 /* Ignore newlines. */
5620 /* Get the initial path. */
5628 this_path_len
= p
- this_path
;
5630 /* Check the arguments. */
5645 while (*p
!= ' ' && *p
!= ';')
5652 if (*this_arg
!= '!')
5660 /* If this is a default argument, we can just ignore it.
5661 This is true even if this_arg begins with '!'. Beginning
5662 with '!' does not mean that this argument is necessarily
5663 inappropriate for this library: it merely means that
5664 there is a more specific library which uses this
5665 argument. If this argument is a default, we need not
5666 consider that more specific library. */
5667 if (! default_arg (this_arg
, p
- this_arg
))
5669 ok
= used_arg (this_arg
, p
- this_arg
);
5680 if (this_path_len
!= 1
5681 || this_path
[0] != '.')
5683 char * new_multilib_dir
= xmalloc (this_path_len
+ 1);
5684 strncpy (new_multilib_dir
, this_path
, this_path_len
);
5685 new_multilib_dir
[this_path_len
] = '\0';
5686 multilib_dir
= new_multilib_dir
;
5695 /* Print out the multiple library subdirectory selection
5696 information. This prints out a series of lines. Each line looks
5697 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5698 required. Only the desired options are printed out, the negative
5699 matches. The options are print without a leading dash. There are
5700 no spaces to make it easy to use the information in the shell.
5701 Each subdirectory is printed only once. This assumes the ordering
5702 generated by the genmultilib script. */
5705 print_multilib_info ()
5707 char *p
= multilib_select
;
5708 char *last_path
= 0, *this_path
;
5710 int last_path_len
= 0;
5714 /* Ignore newlines. */
5721 /* Get the initial path. */
5730 /* If this is a duplicate, skip it. */
5731 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5732 && ! strncmp (last_path
, this_path
, last_path_len
));
5734 last_path
= this_path
;
5735 last_path_len
= p
- this_path
;
5737 /* If this directory requires any default arguments, we can skip
5738 it. We will already have printed a directory identical to
5739 this one which does not require that default argument. */
5757 while (*q
!= ' ' && *q
!= ';')
5765 && default_arg (arg
, q
- arg
))
5780 for (p1
= last_path
; p1
< p
; p1
++)
5799 use_arg
= *p
!= '!';
5804 while (*p
!= ' ' && *p
!= ';')
5819 /* If there are extra options, print them now */
5820 if (multilib_extra
&& *multilib_extra
)
5822 int print_at
= TRUE
;
5825 for (q
= multilib_extra
; *q
!= '\0'; q
++)