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 /* Define IS_DIR_SEPARATOR. */
70 #ifndef DIR_SEPARATOR_2
71 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
72 #else /* DIR_SEPARATOR_2 */
73 # define IS_DIR_SEPARATOR(ch) \
74 (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
75 #endif /* DIR_SEPARATOR_2 */
77 static char dir_separator_str
[] = {DIR_SEPARATOR
, 0};
79 #define obstack_chunk_alloc xmalloc
80 #define obstack_chunk_free free
82 #ifndef GET_ENV_PATH_LIST
83 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
87 #define kill(p,s) raise(s)
90 /* If a stage of compilation returns an exit status >= 1,
91 compilation of that file ceases. */
93 #define MIN_FATAL_STATUS 1
95 /* Flag saying to print the directories gcc will search through looking for
96 programs, libraries, etc. */
98 static int print_search_dirs
;
100 /* Flag saying to print the full filename of this file
101 as found through our usual search mechanism. */
103 static const char *print_file_name
= NULL
;
105 /* As print_file_name, but search for executable file. */
107 static const char *print_prog_name
= NULL
;
109 /* Flag saying to print the relative path we'd use to
110 find libgcc.a given the current compiler flags. */
112 static int print_multi_directory
;
114 /* Flag saying to print the list of subdirectories and
115 compiler flags used to select them in a standard form. */
117 static int print_multi_lib
;
119 /* Flag saying to print the command line options understood by gcc and its
122 static int print_help_list
;
124 /* Flag indicating whether we should print the command and arguments */
126 static int verbose_flag
;
128 /* Nonzero means write "temp" files in source directory
129 and use the source file's name in them, and don't delete them. */
131 static int save_temps_flag
;
133 /* The compiler version. */
135 static char *compiler_version
;
137 /* The target version specified with -V */
139 static char *spec_version
= DEFAULT_TARGET_VERSION
;
141 /* The target machine specified with -b. */
143 static const char *spec_machine
= DEFAULT_TARGET_MACHINE
;
145 /* Nonzero if cross-compiling.
146 When -b is used, the value comes from the `specs' file. */
149 static char *cross_compile
= "1";
151 static char *cross_compile
= "0";
154 /* The number of errors that have occurred; the link phase will not be
155 run if this is non-zero. */
156 static int error_count
= 0;
158 /* This is the obstack which we use to allocate many strings. */
160 static struct obstack obstack
;
162 /* This is the obstack to build an environment variable to pass to
163 collect2 that describes all of the relevant switches of what to
164 pass the compiler in building the list of pointers to constructors
167 static struct obstack collect_obstack
;
169 extern char *version_string
;
171 /* Forward declaration for prototypes. */
174 static void init_spec
PROTO((void));
175 static void read_specs
PROTO((const char *, int));
176 static void set_spec
PROTO((const char *, const char *));
177 static struct compiler
*lookup_compiler
PROTO((const char *, size_t, const char *));
178 static char *build_search_list
PROTO((struct path_prefix
*, const char *, int));
179 static void putenv_from_prefixes
PROTO((struct path_prefix
*, const char *));
180 static char *find_a_file
PROTO((struct path_prefix
*, const char *, int));
181 static void add_prefix
PROTO((struct path_prefix
*, const char *,
182 const char *, int, int, int *));
183 static char *skip_whitespace
PROTO((char *));
184 static void record_temp_file
PROTO((const char *, int, int));
185 static void delete_if_ordinary
PROTO((const char *));
186 static void delete_temp_files
PROTO((void));
187 static void delete_failure_queue
PROTO((void));
188 static void clear_failure_queue
PROTO((void));
189 static int check_live_switch
PROTO((int, int));
190 static const char *handle_braces
PROTO((const char *));
191 static char *save_string
PROTO((const char *, int));
192 extern int do_spec
PROTO((const char *));
193 static int do_spec_1
PROTO((const char *, int, const char *));
194 static const char *find_file
PROTO((const char *));
195 static int is_directory
PROTO((const char *, const char *, int));
196 static void validate_switches
PROTO((const char *));
197 static void validate_all_switches
PROTO((void));
198 static void give_switch
PROTO((int, int, int));
199 static int used_arg
PROTO((const char *, int));
200 static int default_arg
PROTO((const char *, int));
201 static void set_multilib_dir
PROTO((void));
202 static void print_multilib_info
PROTO((void));
203 static void pfatal_with_name
PROTO((const char *)) ATTRIBUTE_NORETURN
;
204 static void perror_with_name
PROTO((const char *));
205 static void pfatal_pexecute
PROTO((const char *, const char *))
207 static void error
PVPROTO((const char *, ...))
209 static void notice
PVPROTO((const char *, ...))
211 static void display_help
PROTO((void));
212 static void add_preprocessor_option
PROTO ((const char *, int));
213 static void add_assembler_option
PROTO ((const char *, int));
214 static void add_linker_option
PROTO ((const char *, int));
215 static void process_command
PROTO ((int, char **));
216 static int execute
PROTO ((void));
217 static void unused_prefix_warnings
PROTO ((struct path_prefix
*));
218 static void clear_args
PROTO ((void));
219 static void fatal_error
PROTO ((int));
221 void fancy_abort
PROTO((void)) ATTRIBUTE_NORETURN
;
223 /* Called before processing to change/add/remove arguments. */
224 extern void lang_specific_driver
PROTO ((void (*) PVPROTO((const char *, ...)),
225 int *, char ***, int *));
227 /* Called before linking. Returns 0 on success and -1 on failure. */
228 extern int lang_specific_pre_link ();
230 /* Number of extra output files that lang_specific_pre_link may generate. */
231 extern int lang_specific_extra_outfiles
;
233 /* Specs are strings containing lines, each of which (if not blank)
234 is made up of a program name, and arguments separated by spaces.
235 The program name must be exact and start from root, since no path
236 is searched and it is unreliable to depend on the current working directory.
237 Redirection of input or output is not supported; the subprograms must
238 accept filenames saying what files to read and write.
240 In addition, the specs can contain %-sequences to substitute variable text
241 or for conditional text. Here is a table of all defined %-sequences.
242 Note that spaces are not generated automatically around the results of
243 expanding these sequences; therefore, you can concatenate them together
244 or with constant text in a single argument.
246 %% substitute one % into the program name or argument.
247 %i substitute the name of the input file being processed.
248 %b substitute the basename of the input file being processed.
249 This is the substring up to (and not including) the last period
250 and not including the directory.
252 substitute a file name that has suffix SUFFIX and is chosen
253 once per compilation, and mark the argument a la %d. To reduce
254 exposure to denial-of-service attacks, the file name is now
255 chosen in a way that is hard to predict even when previously
256 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
257 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
258 the regexp "[.A-Za-z]*" or the special string "%O", which is
259 treated exactly as if %O had been pre-processed. Previously, %g
260 was simply substituted with a file name chosen once per compilation,
261 without regard to any appended suffix (which was therefore treated
262 just like ordinary text), making such attacks more likely to succeed.
264 like %g, but generates a new temporary file name even if %uSUFFIX
267 substitutes the last file name generated with %uSUFFIX, generating a
268 new one if there is no such last file name. In the absence of any
269 %uSUFFIX, this is just like %gSUFFIX, except they don't share
270 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
271 would involve the generation of two distinct file names, one
272 for each `%g.s' and another for each `%U.s'. Previously, %U was
273 simply substituted with a file name chosen for the previous %u,
274 without regard to any appended suffix.
275 %d marks the argument containing or following the %d as a
276 temporary file name, so that that file will be deleted if CC exits
277 successfully. Unlike %g, this contributes no text to the argument.
278 %w marks the argument containing or following the %w as the
279 "output file" of this compilation. This puts the argument
280 into the sequence of arguments that %o will substitute later.
282 like %{...} but mark last argument supplied within
283 as a file to be deleted on failure.
284 %o substitutes the names of all the output files, with spaces
285 automatically placed around them. You should write spaces
286 around the %o as well or the results are undefined.
287 %o is for use in the specs for running the linker.
288 Input files whose names have no recognized suffix are not compiled
289 at all, but they are included among the output files, so they will
291 %O substitutes the suffix for object files. Note that this is
292 handled specially when it immediately follows %g, %u, or %U,
293 because of the need for those to form complete file names. The
294 handling is such that %O is treated exactly as if it had already
295 been substituted, except that %g, %u, and %U do not currently
296 support additional SUFFIX characters following %O as they would
297 following, for example, `.o'.
298 %p substitutes the standard macro predefinitions for the
299 current target machine. Use this when running cpp.
300 %P like %p, but puts `__' before and after the name of each macro.
301 (Except macros that already have __.)
303 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
304 %s current argument is the name of a library or startup file of some sort.
305 Search for that file in a standard list of directories
306 and substitute the full name found.
307 %eSTR Print STR as an error message. STR is terminated by a newline.
308 Use this when inconsistent options are detected.
309 %x{OPTION} Accumulate an option for %X.
310 %X Output the accumulated linker options specified by compilations.
311 %Y Output the accumulated assembler options specified by compilations.
312 %Z Output the accumulated preprocessor options specified by compilations.
313 %v1 Substitute the major version number of GCC.
314 (For version 2.5.n, this is 2.)
315 %v2 Substitute the minor version number of GCC.
316 (For version 2.5.n, this is 5.)
317 %a process ASM_SPEC as a spec.
318 This allows config.h to specify part of the spec for running as.
319 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
320 used here. This can be used to run a post-processor after the
321 assembler has done its job.
322 %D Dump out a -L option for each directory in startfile_prefixes.
323 If multilib_dir is set, extra entries are generated with it affixed.
324 %l process LINK_SPEC as a spec.
325 %L process LIB_SPEC as a spec.
326 %G process LIBGCC_SPEC as a spec.
327 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
328 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
329 %c process SIGNED_CHAR_SPEC as a spec.
330 %C process CPP_SPEC as a spec. A capital C is actually used here.
331 %1 process CC1_SPEC as a spec.
332 %2 process CC1PLUS_SPEC as a spec.
333 %| output "-" if the input for the current command is coming from a pipe.
334 %* substitute the variable part of a matched option. (See below.)
335 Note that each comma in the substituted string is replaced by
337 %{S} substitutes the -S switch, if that switch was given to CC.
338 If that switch was not specified, this substitutes nothing.
339 Here S is a metasyntactic variable.
340 %{S*} substitutes all the switches specified to CC whose names start
341 with -S. This is used for -o, -D, -I, etc; switches that take
342 arguments. CC considers `-o foo' as being one switch whose
343 name starts with `o'. %{o*} would substitute this text,
344 including the space; thus, two arguments would be generated.
345 %{^S*} likewise, but don't put a blank between a switch and any args.
346 %{S*:X} substitutes X if one or more switches whose names start with -S are
347 specified to CC. Note that the tail part of the -S option
348 (i.e. the part matched by the `*') will be substituted for each
349 occurrence of %* within X.
350 %{S:X} substitutes X, but only if the -S switch was given to CC.
351 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
352 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
353 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
354 %{.S:X} substitutes X, but only if processing a file with suffix S.
355 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
356 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
357 combined with ! and . as above binding stronger than the OR.
358 %(Spec) processes a specification defined in a specs file as *Spec:
359 %[Spec] as above, but put __ around -D arguments
361 The conditional text X in a %{S:X} or %{!S:X} construct may contain
362 other nested % constructs or spaces, or even newlines. They are
363 processed as usual, as described above.
365 The -O, -f, -m, and -W switches are handled specifically in these
366 constructs. If another value of -O or the negated form of a -f, -m, or
367 -W switch is found later in the command line, the earlier switch
368 value is ignored, except with {S*} where S is just one letter; this
369 passes all matching options.
371 The character | at the beginning of the predicate text is used to indicate
372 that a command should be piped to the following command, but only if -pipe
375 Note that it is built into CC which switches take arguments and which
376 do not. You might think it would be useful to generalize this to
377 allow each compiler's spec to say which switches take arguments. But
378 this cannot be done in a consistent fashion. CC cannot even decide
379 which input files have been specified without knowing which switches
380 take arguments, and it must know which input files to compile in order
381 to tell which compilers to run.
383 CC also knows implicitly that arguments starting in `-l' are to be
384 treated as compiler output files, and passed to the linker in their
385 proper position among the other output files. */
387 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
389 /* config.h can define ASM_SPEC to provide extra args to the assembler
390 or extra switch-translations. */
395 /* config.h can define ASM_FINAL_SPEC to run a post processor after
396 the assembler has run. */
397 #ifndef ASM_FINAL_SPEC
398 #define ASM_FINAL_SPEC ""
401 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
402 or extra switch-translations. */
407 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
408 or extra switch-translations. */
413 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
414 or extra switch-translations. */
416 #define CC1PLUS_SPEC ""
419 /* config.h can define LINK_SPEC to provide extra args to the linker
420 or extra switch-translations. */
425 /* config.h can define LIB_SPEC to override the default libraries. */
427 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
430 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
433 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
434 /* Have gcc do the search for libgcc.a. */
435 #define LIBGCC_SPEC "libgcc.a%s"
437 #define LIBGCC_SPEC "-lgcc"
441 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
442 #ifndef STARTFILE_SPEC
443 #define STARTFILE_SPEC \
444 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
447 /* config.h can define SWITCHES_NEED_SPACES to control which options
448 require spaces between the option and the argument. */
449 #ifndef SWITCHES_NEED_SPACES
450 #define SWITCHES_NEED_SPACES ""
453 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
455 #define ENDFILE_SPEC ""
458 /* This spec is used for telling cpp whether char is signed or not. */
459 #ifndef SIGNED_CHAR_SPEC
460 /* Use #if rather than ?:
461 because MIPS C compiler rejects like ?: in initializers. */
462 #if DEFAULT_SIGNED_CHAR
463 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
465 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
470 #define LINKER_NAME "collect2"
473 static char *cpp_spec
= CPP_SPEC
;
474 static char *cpp_predefines
= CPP_PREDEFINES
;
475 static char *cc1_spec
= CC1_SPEC
;
476 static char *cc1plus_spec
= CC1PLUS_SPEC
;
477 static char *signed_char_spec
= SIGNED_CHAR_SPEC
;
478 static char *asm_spec
= ASM_SPEC
;
479 static char *asm_final_spec
= ASM_FINAL_SPEC
;
480 static char *link_spec
= LINK_SPEC
;
481 static char *lib_spec
= LIB_SPEC
;
482 static char *libgcc_spec
= LIBGCC_SPEC
;
483 static char *endfile_spec
= ENDFILE_SPEC
;
484 static char *startfile_spec
= STARTFILE_SPEC
;
485 static char *switches_need_spaces
= SWITCHES_NEED_SPACES
;
486 static char *linker_name_spec
= LINKER_NAME
;
488 /* Some compilers have limits on line lengths, and the multilib_select
489 and/or multilib_matches strings can be very long, so we build them at
491 static struct obstack multilib_obstack
;
492 static char *multilib_select
;
493 static char *multilib_matches
;
494 static char *multilib_defaults
;
495 #include "multilib.h"
497 /* Check whether a particular argument is a default argument. */
499 #ifndef MULTILIB_DEFAULTS
500 #define MULTILIB_DEFAULTS { "" }
503 static char *multilib_defaults_raw
[] = MULTILIB_DEFAULTS
;
506 struct user_specs
*next
;
507 const char *filename
;
510 static struct user_specs
*user_specs_head
, *user_specs_tail
;
512 /* This defines which switch letters take arguments. */
514 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
515 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
516 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
517 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
518 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
519 || (CHAR) == 'B' || (CHAR) == 'b')
521 #ifndef SWITCH_TAKES_ARG
522 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
525 /* This defines which multi-letter switches take arguments. */
527 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
528 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
529 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
530 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
531 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
532 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
533 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
535 #ifndef WORD_SWITCH_TAKES_ARG
536 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
540 #ifdef HAVE_EXECUTABLE_SUFFIX
541 /* This defines which switches stop a full compilation. */
542 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
543 ((CHAR) == 'c' || (CHAR) == 'S')
545 #ifndef SWITCH_CURTAILS_COMPILATION
546 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
547 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
551 /* Record the mapping from file suffixes for compilation specs. */
555 const char *suffix
; /* Use this compiler for input files
556 whose names end in this suffix. */
558 const char *spec
[4]; /* To use this compiler, concatenate these
559 specs and pass to do_spec. */
562 /* Pointer to a vector of `struct compiler' that gives the spec for
563 compiling a file, based on its suffix.
564 A file that does not end in any of these suffixes will be passed
565 unchanged to the loader and nothing else will be done to it.
567 An entry containing two 0s is used to terminate the vector.
569 If multiple entries match a file, the last matching one is used. */
571 static struct compiler
*compilers
;
573 /* Number of entries in `compilers', not counting the null terminator. */
575 static int n_compilers
;
577 /* The default list of file name suffixes and their compilation specs. */
579 static struct compiler default_compilers
[] =
581 /* Add lists of suffixes of known languages here. If those languages
582 were not present when we built the driver, we will hit these copies
583 and be given a more meaningful error than "file not used since
584 linking is not done". */
585 {".m", {"#Objective-C"}},
586 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
587 {".c++", {"#C++"}}, {".C", {"#C++"}},
588 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
589 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
590 {".fpp", {"#Fortran"}},
591 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
592 /* Next come the entries for C. */
597 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
598 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
599 %{C:%{!E:%eGNU C does not support -C without using -E}}\
600 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
601 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
602 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
603 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
604 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
605 %{ffast-math:-D__FAST_MATH__}\
606 %{traditional} %{ftraditional:-traditional}\
607 %{traditional-cpp:-traditional}\
608 %{fleading-underscore} %{fno-leading-underscore}\
609 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
610 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
611 %{!E:%{!M:%{!MM:cc1 %i %1 \
612 %{std*} %{nostdinc*} %{A*} %{I*} %I\
613 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
614 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
615 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
616 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
617 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
618 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
619 %{ffast-math:-D__FAST_MATH__}\
620 %{H} %C %{D*} %{U*} %{i*} %Z\
621 %{ftraditional:-traditional}\
622 %{traditional-cpp:-traditional}\
623 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
624 %{aux-info*} %{Qn:-fno-ident}\
626 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
627 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
628 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
630 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
631 %{!pipe:%g.s} %A\n }}}}"
632 #else /* ! USE_CPPLIB */
633 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
634 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
635 %{C:%{!E:%eGNU C does not support -C without using -E}}\
636 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
637 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
638 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
639 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
640 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
641 %{ffast-math:-D__FAST_MATH__}\
642 %{traditional} %{ftraditional:-traditional}\
643 %{traditional-cpp:-traditional}\
644 %{fleading-underscore} %{fno-leading-underscore}\
645 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
646 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
647 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
648 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
649 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
650 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
651 %{aux-info*} %{Qn:-fno-ident}\
653 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
654 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
656 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
657 %{!pipe:%g.s} %A\n }}}}"
658 #endif /* ! USE_CPPLIB */
661 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
662 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
663 %{C:%{!E:%eGNU C does not support -C without using -E}}\
664 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
665 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
666 %{ansi|std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
667 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
668 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
669 %{ffast-math:-D__FAST_MATH__}\
670 %{traditional} %{ftraditional:-traditional}\
671 %{traditional-cpp:-traditional}\
672 %{fleading-underscore} %{fno-leading-underscore}\
673 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
675 %{!E:%e-E required when input is from standard input}"}},
676 {".h", {"@c-header"}},
678 {"%{!E:%eCompilation of header file requested} \
679 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
680 %{C:%{!E:%eGNU C does not support -C without using -E}}\
681 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
682 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
683 %{std=*:%{!std=gnu*:-trigraphs -D__STRICT_ANSI__}}\
684 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
685 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
686 %{ffast-math:-D__FAST_MATH__}\
687 %{traditional} %{ftraditional:-traditional}\
688 %{traditional-cpp:-traditional}\
689 %{fleading-underscore} %{fno-leading-underscore}\
690 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
692 {".i", {"@cpp-output"}},
694 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
695 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
696 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
697 %{aux-info*} %{Qn:-fno-ident}\
698 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
699 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
701 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
702 %{!pipe:%g.s} %A\n }}}}"}},
703 {".s", {"@assembler"}},
705 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
706 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
708 {".S", {"@assembler-with-cpp"}},
709 {"@assembler-with-cpp",
710 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
711 %{C:%{!E:%eGNU C does not support -C without using -E}}\
712 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
713 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
714 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
715 %{ffast-math:-D__FAST_MATH__}\
716 %{traditional} %{ftraditional:-traditional}\
717 %{traditional-cpp:-traditional}\
718 %{fleading-underscore} %{fno-leading-underscore}\
719 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
720 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
721 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
722 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
723 %{!pipe:%g.s} %A\n }}}}"}},
725 /* Mark end of table */
729 /* Number of elements in default_compilers, not counting the terminator. */
731 static int n_default_compilers
732 = (sizeof default_compilers
/ sizeof (struct compiler
)) - 1;
734 /* Here is the spec for running the linker, after compiling all files. */
736 /* -u* was put back because both BSD and SysV seem to support it. */
737 /* %{static:} simply prevents an error message if the target machine
738 doesn't handle -static. */
739 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
740 scripts which exist in user specified directories, or in standard
742 #ifdef LINK_COMMAND_SPEC
743 /* Provide option to override link_command_spec from machine specific
744 configuration files. */
745 static const char *link_command_spec
=
748 #ifdef LINK_LIBGCC_SPECIAL
749 /* Don't generate -L options. */
750 static const char *link_command_spec
= "\
752 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
753 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
754 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
756 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
757 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
762 static const char *link_command_spec
= "\
764 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
765 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
766 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
767 %{static:} %{L*} %D %o\
768 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
769 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
775 /* A vector of options to give to the linker.
776 These options are accumulated by %x,
777 and substituted into the linker command with %X. */
778 static int n_linker_options
;
779 static char **linker_options
;
781 /* A vector of options to give to the assembler.
782 These options are accumulated by -Wa,
783 and substituted into the assembler command with %Y. */
784 static int n_assembler_options
;
785 static char **assembler_options
;
787 /* A vector of options to give to the preprocessor.
788 These options are accumulated by -Wp,
789 and substituted into the preprocessor command with %Z. */
790 static int n_preprocessor_options
;
791 static char **preprocessor_options
;
793 /* Define how to map long options into short ones. */
795 /* This structure describes one mapping. */
798 /* The long option's name. */
800 /* The equivalent short option. */
801 const char *equivalent
;
802 /* Argument info. A string of flag chars; NULL equals no options.
803 a => argument required.
804 o => argument optional.
805 j => join argument to equivalent, making one word.
806 * => require other text after NAME as an argument. */
807 const char *arg_info
;
810 /* This is the table of mappings. Mappings are tried sequentially
811 for each option encountered; the first one that matches, wins. */
813 struct option_map option_map
[] =
815 {"--all-warnings", "-Wall", 0},
816 {"--ansi", "-ansi", 0},
817 {"--assemble", "-S", 0},
818 {"--assert", "-A", "a"},
819 {"--classpath", "-fclasspath=", "aj"},
820 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
821 {"--comments", "-C", 0},
822 {"--compile", "-c", 0},
823 {"--debug", "-g", "oj"},
824 {"--define-macro", "-D", "aj"},
825 {"--dependencies", "-M", 0},
826 {"--dump", "-d", "a"},
827 {"--dumpbase", "-dumpbase", "a"},
828 {"--entry", "-e", 0},
829 {"--extra-warnings", "-W", 0},
830 {"--for-assembler", "-Wa", "a"},
831 {"--for-linker", "-Xlinker", "a"},
832 {"--force-link", "-u", "a"},
833 {"--imacros", "-imacros", "a"},
834 {"--include", "-include", "a"},
835 {"--include-barrier", "-I-", 0},
836 {"--include-directory", "-I", "aj"},
837 {"--include-directory-after", "-idirafter", "a"},
838 {"--include-prefix", "-iprefix", "a"},
839 {"--include-with-prefix", "-iwithprefix", "a"},
840 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
841 {"--include-with-prefix-after", "-iwithprefix", "a"},
842 {"--language", "-x", "a"},
843 {"--library-directory", "-L", "a"},
844 {"--machine", "-m", "aj"},
845 {"--machine-", "-m", "*j"},
846 {"--no-line-commands", "-P", 0},
847 {"--no-precompiled-includes", "-noprecomp", 0},
848 {"--no-standard-includes", "-nostdinc", 0},
849 {"--no-standard-libraries", "-nostdlib", 0},
850 {"--no-warnings", "-w", 0},
851 {"--optimize", "-O", "oj"},
852 {"--output", "-o", "a"},
853 {"--output-class-directory", "-foutput-class-dir=", "ja"},
854 {"--pedantic", "-pedantic", 0},
855 {"--pedantic-errors", "-pedantic-errors", 0},
856 {"--pipe", "-pipe", 0},
857 {"--prefix", "-B", "a"},
858 {"--preprocess", "-E", 0},
859 {"--print-search-dirs", "-print-search-dirs", 0},
860 {"--print-file-name", "-print-file-name=", "aj"},
861 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
862 {"--print-missing-file-dependencies", "-MG", 0},
863 {"--print-multi-lib", "-print-multi-lib", 0},
864 {"--print-multi-directory", "-print-multi-directory", 0},
865 {"--print-prog-name", "-print-prog-name=", "aj"},
866 {"--profile", "-p", 0},
867 {"--profile-blocks", "-a", 0},
868 {"--quiet", "-q", 0},
869 {"--save-temps", "-save-temps", 0},
870 {"--shared", "-shared", 0},
871 {"--silent", "-q", 0},
872 {"--specs", "-specs=", "aj"},
873 {"--static", "-static", 0},
874 {"--std", "-std=", "aj"},
875 {"--symbolic", "-symbolic", 0},
876 {"--target", "-b", "a"},
877 {"--trace-includes", "-H", 0},
878 {"--traditional", "-traditional", 0},
879 {"--traditional-cpp", "-traditional-cpp", 0},
880 {"--trigraphs", "-trigraphs", 0},
881 {"--undefine-macro", "-U", "aj"},
882 {"--use-version", "-V", "a"},
883 {"--user-dependencies", "-MM", 0},
884 {"--verbose", "-v", 0},
885 {"--version", "-dumpversion", 0},
886 {"--warn-", "-W", "*j"},
887 {"--write-dependencies", "-MD", 0},
888 {"--write-user-dependencies", "-MMD", 0},
892 /* Translate the options described by *ARGCP and *ARGVP.
893 Make a new vector and store it back in *ARGVP,
894 and store its length in *ARGVC. */
897 translate_options (argcp
, argvp
)
903 const char **argv
= *argvp
;
905 (const char **) xmalloc ((argc
+ 2) * 2 * sizeof (const char *));
909 newv
[newindex
++] = argv
[i
++];
913 /* Translate -- options. */
914 if (argv
[i
][0] == '-' && argv
[i
][1] == '-')
917 /* Find a mapping that applies to this option. */
918 for (j
= 0; j
< sizeof (option_map
) / sizeof (option_map
[0]); j
++)
920 size_t optlen
= strlen (option_map
[j
].name
);
921 size_t arglen
= strlen (argv
[i
]);
922 size_t complen
= arglen
> optlen
? optlen
: arglen
;
923 const char *arginfo
= option_map
[j
].arg_info
;
928 if (!strncmp (argv
[i
], option_map
[j
].name
, complen
))
936 k
< sizeof (option_map
) / sizeof (option_map
[0]);
938 if (strlen (option_map
[k
].name
) >= arglen
939 && !strncmp (argv
[i
], option_map
[k
].name
, arglen
))
941 error ("Ambiguous abbreviation %s", argv
[i
]);
945 if (k
!= sizeof (option_map
) / sizeof (option_map
[0]))
951 /* If the option has an argument, accept that. */
952 if (argv
[i
][optlen
] == '=')
953 arg
= argv
[i
] + optlen
+ 1;
955 /* If this mapping requires extra text at end of name,
956 accept that as "argument". */
957 else if (index (arginfo
, '*') != 0)
958 arg
= argv
[i
] + optlen
;
960 /* Otherwise, extra text at end means mismatch.
961 Try other mappings. */
966 else if (index (arginfo
, '*') != 0)
968 error ("Incomplete `%s' option", option_map
[j
].name
);
972 /* Handle arguments. */
973 if (index (arginfo
, 'a') != 0)
979 error ("Missing argument to `%s' option",
987 else if (index (arginfo
, '*') != 0)
989 else if (index (arginfo
, 'o') == 0)
992 error ("Extraneous argument to `%s' option",
997 /* Store the translation as one argv elt or as two. */
998 if (arg
!= 0 && index (arginfo
, 'j') != 0)
999 newv
[newindex
++] = concat (option_map
[j
].equivalent
, arg
,
1003 newv
[newindex
++] = option_map
[j
].equivalent
;
1004 newv
[newindex
++] = arg
;
1007 newv
[newindex
++] = option_map
[j
].equivalent
;
1015 /* Handle old-fashioned options--just copy them through,
1016 with their arguments. */
1017 else if (argv
[i
][0] == '-')
1019 const char *p
= argv
[i
] + 1;
1023 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
1024 nskip
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
1025 else if (WORD_SWITCH_TAKES_ARG (p
))
1026 nskip
+= WORD_SWITCH_TAKES_ARG (p
);
1027 else if ((c
== 'B' || c
== 'b' || c
== 'V' || c
== 'x')
1030 else if (! strcmp (p
, "Xlinker"))
1033 /* Watch out for an option at the end of the command line that
1034 is missing arguments, and avoid skipping past the end of the
1036 if (nskip
+ i
> argc
)
1041 newv
[newindex
++] = argv
[i
++];
1046 /* Ordinary operands, or +e options. */
1047 newv
[newindex
++] = argv
[i
++];
1060 #ifdef HAVE_STRERROR
1069 if (e
> 0 && e
< sys_nerr
)
1070 return sys_errlist
[e
];
1082 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1083 be considered whitespace. */
1084 if (p
[0] == '\n' && p
[1] == '\n' && p
[2] == '\n')
1086 else if (*p
== '\n' || *p
== ' ' || *p
== '\t')
1090 while (*p
!= '\n') p
++;
1100 /* Structure to keep track of the specs that have been defined so far.
1101 These are accessed using %(specname) or %[specname] in a compiler
1106 /* The following 2 fields must be first */
1107 /* to allow EXTRA_SPECS to be initialized */
1108 char *name
; /* name of the spec. */
1109 char *ptr
; /* available ptr if no static pointer */
1111 /* The following fields are not initialized */
1112 /* by EXTRA_SPECS */
1113 char **ptr_spec
; /* pointer to the spec itself. */
1114 struct spec_list
*next
; /* Next spec in linked list. */
1115 int name_len
; /* length of the name */
1116 int alloc_p
; /* whether string was allocated */
1119 #define INIT_STATIC_SPEC(NAME,PTR) \
1120 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1122 /* List of statically defined specs */
1123 static struct spec_list static_specs
[] = {
1124 INIT_STATIC_SPEC ("asm", &asm_spec
),
1125 INIT_STATIC_SPEC ("asm_final", &asm_final_spec
),
1126 INIT_STATIC_SPEC ("cpp", &cpp_spec
),
1127 INIT_STATIC_SPEC ("cc1", &cc1_spec
),
1128 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec
),
1129 INIT_STATIC_SPEC ("endfile", &endfile_spec
),
1130 INIT_STATIC_SPEC ("link", &link_spec
),
1131 INIT_STATIC_SPEC ("lib", &lib_spec
),
1132 INIT_STATIC_SPEC ("libgcc", &libgcc_spec
),
1133 INIT_STATIC_SPEC ("startfile", &startfile_spec
),
1134 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces
),
1135 INIT_STATIC_SPEC ("signed_char", &signed_char_spec
),
1136 INIT_STATIC_SPEC ("predefines", &cpp_predefines
),
1137 INIT_STATIC_SPEC ("cross_compile", &cross_compile
),
1138 INIT_STATIC_SPEC ("version", &compiler_version
),
1139 INIT_STATIC_SPEC ("multilib", &multilib_select
),
1140 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults
),
1141 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra
),
1142 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches
),
1143 INIT_STATIC_SPEC ("linker", &linker_name_spec
),
1146 #ifdef EXTRA_SPECS /* additional specs needed */
1147 /* Structure to keep track of just the first two args of a spec_list.
1148 That is all that the EXTRA_SPECS macro gives us. */
1155 static struct spec_list_1 extra_specs_1
[] = { EXTRA_SPECS
};
1156 static struct spec_list
* extra_specs
= (struct spec_list
*)0;
1159 /* List of dynamically allocates specs that have been defined so far. */
1161 static struct spec_list
*specs
= (struct spec_list
*)0;
1164 /* Initialize the specs lookup routines. */
1169 struct spec_list
*next
= (struct spec_list
*)0;
1170 struct spec_list
*sl
= (struct spec_list
*)0;
1174 return; /* already initialized */
1177 notice ("Using builtin specs.\n");
1180 extra_specs
= (struct spec_list
*)
1181 xmalloc (sizeof(struct spec_list
) *
1182 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1183 bzero ((PTR
) extra_specs
, sizeof(struct spec_list
) *
1184 (sizeof(extra_specs_1
)/sizeof(extra_specs_1
[0])));
1186 for (i
= (sizeof(extra_specs_1
) / sizeof(extra_specs_1
[0])) - 1; i
>= 0; i
--)
1188 sl
= &extra_specs
[i
];
1189 sl
->name
= extra_specs_1
[i
].name
;
1190 sl
->ptr
= extra_specs_1
[i
].ptr
;
1192 sl
->name_len
= strlen (sl
->name
);
1193 sl
->ptr_spec
= &sl
->ptr
;
1198 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1; i
>= 0; i
--)
1200 sl
= &static_specs
[i
];
1209 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1210 removed; If the spec starts with a + then SPEC is added to the end of the
1214 set_spec (name
, spec
)
1218 struct spec_list
*sl
;
1220 int name_len
= strlen (name
);
1223 /* If this is the first call, initialize the statically allocated specs */
1226 struct spec_list
*next
= (struct spec_list
*)0;
1227 for (i
= (sizeof (static_specs
) / sizeof (static_specs
[0])) - 1;
1230 sl
= &static_specs
[i
];
1237 /* See if the spec already exists */
1238 for (sl
= specs
; sl
; sl
= sl
->next
)
1239 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, name
))
1244 /* Not found - make it */
1245 sl
= (struct spec_list
*) xmalloc (sizeof (struct spec_list
));
1246 sl
->name
= save_string (name
, strlen (name
));
1247 sl
->name_len
= name_len
;
1248 sl
->ptr_spec
= &sl
->ptr
;
1250 *(sl
->ptr_spec
) = "";
1255 old_spec
= *(sl
->ptr_spec
);
1256 *(sl
->ptr_spec
) = ((spec
[0] == '+' && ISSPACE ((unsigned char)spec
[1]))
1257 ? concat (old_spec
, spec
+ 1, NULL_PTR
)
1258 : save_string (spec
, strlen (spec
)));
1262 notice ("Setting spec %s to '%s'\n\n", name
, *(sl
->ptr_spec
));
1265 /* Free the old spec */
1266 if (old_spec
&& sl
->alloc_p
)
1272 /* Accumulate a command (program name and args), and run it. */
1274 /* Vector of pointers to arguments in the current line of specifications. */
1276 static char **argbuf
;
1278 /* Number of elements allocated in argbuf. */
1280 static int argbuf_length
;
1282 /* Number of elements in argbuf currently in use (containing args). */
1284 static int argbuf_index
;
1286 /* We want this on by default all the time now. */
1287 #define MKTEMP_EACH_FILE
1289 #ifdef MKTEMP_EACH_FILE
1291 extern char *make_temp_file
PROTO((const char *));
1293 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1296 static struct temp_name
{
1297 const char *suffix
; /* suffix associated with the code. */
1298 int length
; /* strlen (suffix). */
1299 int unique
; /* Indicates whether %g or %u/%U was used. */
1300 const char *filename
; /* associated filename. */
1301 int filename_length
; /* strlen (filename). */
1302 struct temp_name
*next
;
1307 /* Number of commands executed so far. */
1309 static int execution_count
;
1311 /* Number of commands that exited with a signal. */
1313 static int signal_count
;
1315 /* Name with which this program was invoked. */
1317 static const char *programname
;
1319 /* Structures to keep track of prefixes to try when looking for files. */
1323 char *prefix
; /* String to prepend to the path. */
1324 struct prefix_list
*next
; /* Next in linked list. */
1325 int require_machine_suffix
; /* Don't use without machine_suffix. */
1326 /* 2 means try both machine_suffix and just_machine_suffix. */
1327 int *used_flag_ptr
; /* 1 if a file was found with this prefix. */
1332 struct prefix_list
*plist
; /* List of prefixes to try */
1333 int max_len
; /* Max length of a prefix in PLIST */
1334 const char *name
; /* Name of this list (used in config stuff) */
1337 /* List of prefixes to try when looking for executables. */
1339 static struct path_prefix exec_prefixes
= { 0, 0, "exec" };
1341 /* List of prefixes to try when looking for startup (crt0) files. */
1343 static struct path_prefix startfile_prefixes
= { 0, 0, "startfile" };
1345 /* List of prefixes to try when looking for include files. */
1347 static struct path_prefix include_prefixes
= { 0, 0, "include" };
1349 /* Suffix to attach to directories searched for commands.
1350 This looks like `MACHINE/VERSION/'. */
1352 static const char *machine_suffix
= 0;
1354 /* Suffix to attach to directories searched for commands.
1355 This is just `MACHINE/'. */
1357 static const char *just_machine_suffix
= 0;
1359 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1361 static const char *gcc_exec_prefix
;
1363 /* Default prefixes to attach to command names. */
1365 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1366 #undef MD_EXEC_PREFIX
1367 #undef MD_STARTFILE_PREFIX
1368 #undef MD_STARTFILE_PREFIX_1
1371 #ifndef STANDARD_EXEC_PREFIX
1372 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1373 #endif /* !defined STANDARD_EXEC_PREFIX */
1375 static const char *standard_exec_prefix
= STANDARD_EXEC_PREFIX
;
1376 static const char *standard_exec_prefix_1
= "/usr/lib/gcc/";
1377 #ifdef MD_EXEC_PREFIX
1378 static const char *md_exec_prefix
= MD_EXEC_PREFIX
;
1381 #ifndef STANDARD_STARTFILE_PREFIX
1382 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1383 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1385 #ifdef MD_STARTFILE_PREFIX
1386 static const char *md_startfile_prefix
= MD_STARTFILE_PREFIX
;
1388 #ifdef MD_STARTFILE_PREFIX_1
1389 static const char *md_startfile_prefix_1
= MD_STARTFILE_PREFIX_1
;
1391 static const char *standard_startfile_prefix
= STANDARD_STARTFILE_PREFIX
;
1392 static const char *standard_startfile_prefix_1
= "/lib/";
1393 static const char *standard_startfile_prefix_2
= "/usr/lib/";
1395 #ifndef TOOLDIR_BASE_PREFIX
1396 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1398 static const char *tooldir_base_prefix
= TOOLDIR_BASE_PREFIX
;
1399 static const char *tooldir_prefix
;
1401 /* Subdirectory to use for locating libraries. Set by
1402 set_multilib_dir based on the compilation options. */
1404 static const char *multilib_dir
;
1406 /* Clear out the vector of arguments (after a command is executed). */
1414 /* Add one argument to the vector at the end.
1415 This is done when a space is seen or at the end of the line.
1416 If DELETE_ALWAYS is nonzero, the arg is a filename
1417 and the file should be deleted eventually.
1418 If DELETE_FAILURE is nonzero, the arg is a filename
1419 and the file should be deleted if this compilation fails. */
1422 store_arg (arg
, delete_always
, delete_failure
)
1424 int delete_always
, delete_failure
;
1426 if (argbuf_index
+ 1 == argbuf_length
)
1428 = (char **) xrealloc (argbuf
, (argbuf_length
*= 2) * sizeof (char *));
1430 argbuf
[argbuf_index
++] = arg
;
1431 argbuf
[argbuf_index
] = 0;
1433 if (delete_always
|| delete_failure
)
1434 record_temp_file (arg
, delete_always
, delete_failure
);
1437 /* Read compilation specs from a file named FILENAME,
1438 replacing the default ones.
1440 A suffix which starts with `*' is a definition for
1441 one of the machine-specific sub-specs. The "suffix" should be
1442 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1443 The corresponding spec is stored in asm_spec, etc.,
1444 rather than in the `compilers' vector.
1446 Anything invalid in the file is a fatal error. */
1449 read_specs (filename
, main_p
)
1450 const char *filename
;
1455 struct stat statbuf
;
1460 notice ("Reading specs from %s\n", filename
);
1462 /* Open and stat the file. */
1463 desc
= open (filename
, O_RDONLY
, 0);
1465 pfatal_with_name (filename
);
1466 if (stat (filename
, &statbuf
) < 0)
1467 pfatal_with_name (filename
);
1469 /* Read contents of file into BUFFER. */
1470 buffer
= xmalloc ((unsigned) statbuf
.st_size
+ 1);
1471 readlen
= read (desc
, buffer
, (unsigned) statbuf
.st_size
);
1473 pfatal_with_name (filename
);
1474 buffer
[readlen
] = 0;
1477 /* Scan BUFFER for specs, putting them in the vector. */
1483 char *in
, *out
, *p1
, *p2
, *p3
;
1485 /* Advance P in BUFFER to the next nonblank nocomment line. */
1486 p
= skip_whitespace (p
);
1490 /* Is this a special command that starts with '%'? */
1491 /* Don't allow this for the main specs file, since it would
1492 encourage people to overwrite it. */
1493 if (*p
== '%' && !main_p
)
1496 while (*p
&& *p
!= '\n')
1499 p
++; /* Skip '\n' */
1501 if (!strncmp (p1
, "%include", sizeof ("%include")-1)
1502 && (p1
[sizeof "%include" - 1] == ' '
1503 || p1
[sizeof "%include" - 1] == '\t'))
1507 p1
+= sizeof ("%include");
1508 while (*p1
== ' ' || *p1
== '\t')
1511 if (*p1
++ != '<' || p
[-2] != '>')
1512 fatal ("specs %%include syntax malformed after %ld characters",
1513 (long) (p1
- buffer
+ 1));
1516 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1517 read_specs (new_filename
? new_filename
: p1
, FALSE
);
1520 else if (!strncmp (p1
, "%include_noerr", sizeof "%include_noerr" - 1)
1521 && (p1
[sizeof "%include_noerr" - 1] == ' '
1522 || p1
[sizeof "%include_noerr" - 1] == '\t'))
1526 p1
+= sizeof "%include_noerr";
1527 while (*p1
== ' ' || *p1
== '\t') p1
++;
1529 if (*p1
++ != '<' || p
[-2] != '>')
1530 fatal ("specs %%include syntax malformed after %ld characters",
1531 (long) (p1
- buffer
+ 1));
1534 new_filename
= find_a_file (&startfile_prefixes
, p1
, R_OK
);
1536 read_specs (new_filename
, FALSE
);
1537 else if (verbose_flag
)
1538 notice ("Could not find specs file %s\n", p1
);
1541 else if (!strncmp (p1
, "%rename", sizeof "%rename" - 1)
1542 && (p1
[sizeof "%rename" - 1] == ' '
1543 || p1
[sizeof "%rename" - 1] == '\t'))
1546 struct spec_list
*sl
;
1548 /* Get original name */
1549 p1
+= sizeof "%rename";
1550 while (*p1
== ' ' || *p1
== '\t')
1553 if (! ISALPHA ((unsigned char)*p1
))
1554 fatal ("specs %%rename syntax malformed after %ld characters",
1555 (long) (p1
- buffer
));
1558 while (*p2
&& !ISSPACE ((unsigned char)*p2
))
1561 if (*p2
!= ' ' && *p2
!= '\t')
1562 fatal ("specs %%rename syntax malformed after %ld characters",
1563 (long) (p2
- buffer
));
1567 while (*p2
== ' ' || *p2
== '\t')
1570 if (! ISALPHA ((unsigned char)*p2
))
1571 fatal ("specs %%rename syntax malformed after %ld characters",
1572 (long) (p2
- buffer
));
1574 /* Get new spec name */
1576 while (*p3
&& !ISSPACE ((unsigned char)*p3
))
1580 fatal ("specs %%rename syntax malformed after %ld characters",
1581 (long) (p3
- buffer
));
1584 for (sl
= specs
; sl
; sl
= sl
->next
)
1585 if (name_len
== sl
->name_len
&& !strcmp (sl
->name
, p1
))
1589 fatal ("specs %s spec was not found to be renamed", p1
);
1591 if (strcmp (p1
, p2
) == 0)
1596 notice ("rename spec %s to %s\n", p1
, p2
);
1598 notice ("spec is '%s'\n\n", *(sl
->ptr_spec
));
1602 set_spec (p2
, *(sl
->ptr_spec
));
1604 free (*(sl
->ptr_spec
));
1606 *(sl
->ptr_spec
) = "";
1611 fatal ("specs unknown %% command after %ld characters",
1612 (long) (p1
- buffer
));
1615 /* Find the colon that should end the suffix. */
1617 while (*p1
&& *p1
!= ':' && *p1
!= '\n')
1620 /* The colon shouldn't be missing. */
1622 fatal ("specs file malformed after %ld characters",
1623 (long) (p1
- buffer
));
1625 /* Skip back over trailing whitespace. */
1627 while (p2
> buffer
&& (p2
[-1] == ' ' || p2
[-1] == '\t'))
1630 /* Copy the suffix to a string. */
1631 suffix
= save_string (p
, p2
- p
);
1632 /* Find the next line. */
1633 p
= skip_whitespace (p1
+ 1);
1635 fatal ("specs file malformed after %ld characters",
1636 (long) (p
- buffer
));
1639 /* Find next blank line or end of string. */
1640 while (*p1
&& !(*p1
== '\n' && (p1
[1] == '\n' || p1
[1] == '\0')))
1643 /* Specs end at the blank line and do not include the newline. */
1644 spec
= save_string (p
, p1
- p
);
1647 /* Delete backslash-newline sequences from the spec. */
1652 if (in
[0] == '\\' && in
[1] == '\n')
1654 else if (in
[0] == '#')
1655 while (*in
&& *in
!= '\n')
1663 if (suffix
[0] == '*')
1665 if (! strcmp (suffix
, "*link_command"))
1666 link_command_spec
= spec
;
1668 set_spec (suffix
+ 1, spec
);
1672 /* Add this pair to the vector. */
1674 = ((struct compiler
*)
1675 xrealloc (compilers
,
1676 (n_compilers
+ 2) * sizeof (struct compiler
)));
1678 compilers
[n_compilers
].suffix
= suffix
;
1679 bzero ((char *) compilers
[n_compilers
].spec
,
1680 sizeof compilers
[n_compilers
].spec
);
1681 compilers
[n_compilers
].spec
[0] = spec
;
1683 bzero ((char *) &compilers
[n_compilers
],
1684 sizeof compilers
[n_compilers
]);
1688 link_command_spec
= spec
;
1691 if (link_command_spec
== 0)
1692 fatal ("spec file has no spec for linking");
1695 /* Record the names of temporary files we tell compilers to write,
1696 and delete them at the end of the run. */
1698 /* This is the common prefix we use to make temp file names.
1699 It is chosen once for each run of this program.
1700 It is substituted into a spec by %g.
1701 Thus, all temp file names contain this prefix.
1702 In practice, all temp file names start with this prefix.
1704 This prefix comes from the envvar TMPDIR if it is defined;
1705 otherwise, from the P_tmpdir macro if that is defined;
1706 otherwise, in /usr/tmp or /tmp;
1707 or finally the current directory if all else fails. */
1709 static const char *temp_filename
;
1711 /* Length of the prefix. */
1713 static int temp_filename_length
;
1715 /* Define the list of temporary files to delete. */
1720 struct temp_file
*next
;
1723 /* Queue of files to delete on success or failure of compilation. */
1724 static struct temp_file
*always_delete_queue
;
1725 /* Queue of files to delete on failure of compilation. */
1726 static struct temp_file
*failure_delete_queue
;
1728 /* Record FILENAME as a file to be deleted automatically.
1729 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1730 otherwise delete it in any case.
1731 FAIL_DELETE nonzero means delete it if a compilation step fails;
1732 otherwise delete it in any case. */
1735 record_temp_file (filename
, always_delete
, fail_delete
)
1736 const char *filename
;
1740 register char *name
;
1741 name
= xmalloc (strlen (filename
) + 1);
1742 strcpy (name
, filename
);
1746 register struct temp_file
*temp
;
1747 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1748 if (! strcmp (name
, temp
->name
))
1751 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1752 temp
->next
= always_delete_queue
;
1754 always_delete_queue
= temp
;
1761 register struct temp_file
*temp
;
1762 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1763 if (! strcmp (name
, temp
->name
))
1766 temp
= (struct temp_file
*) xmalloc (sizeof (struct temp_file
));
1767 temp
->next
= failure_delete_queue
;
1769 failure_delete_queue
= temp
;
1775 /* Delete all the temporary files whose names we previously recorded. */
1778 delete_if_ordinary (name
)
1785 printf ("Delete %s? (y or n) ", name
);
1789 while ((c
= getchar ()) != '\n' && c
!= EOF
)
1792 if (i
== 'y' || i
== 'Y')
1794 if (stat (name
, &st
) >= 0 && S_ISREG (st
.st_mode
))
1795 if (unlink (name
) < 0)
1797 perror_with_name (name
);
1801 delete_temp_files ()
1803 register struct temp_file
*temp
;
1805 for (temp
= always_delete_queue
; temp
; temp
= temp
->next
)
1806 delete_if_ordinary (temp
->name
);
1807 always_delete_queue
= 0;
1810 /* Delete all the files to be deleted on error. */
1813 delete_failure_queue ()
1815 register struct temp_file
*temp
;
1817 for (temp
= failure_delete_queue
; temp
; temp
= temp
->next
)
1818 delete_if_ordinary (temp
->name
);
1822 clear_failure_queue ()
1824 failure_delete_queue
= 0;
1827 /* Routine to add variables to the environment. We do this to pass
1828 the pathname of the gcc driver, and the directories search to the
1829 collect2 program, which is being run as ld. This way, we can be
1830 sure of executing the right compiler when collect2 wants to build
1831 constructors and destructors. Since the environment variables we
1832 use come from an obstack, we don't have to worry about allocating
1841 #ifndef VMS /* nor about VMS */
1843 extern char **environ
;
1844 char **old_environ
= environ
;
1848 int str_len
= strlen (str
);
1852 while ((ch
= *p
++) != '\0' && ch
!= '=')
1858 /* Search for replacing an existing environment variable, and
1859 count the number of total environment variables. */
1860 for (envp
= old_environ
; *envp
; envp
++)
1863 if (!strncmp (str
, *envp
, name_len
))
1870 /* Add a new environment variable */
1871 environ
= (char **) xmalloc (sizeof (char *) * (num_envs
+2));
1873 memcpy ((char *) (environ
+ 1), (char *) old_environ
,
1874 sizeof (char *) * (num_envs
+1));
1879 #endif /* HAVE_PUTENV */
1882 /* Build a list of search directories from PATHS.
1883 PREFIX is a string to prepend to the list.
1884 If CHECK_DIR_P is non-zero we ensure the directory exists.
1885 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1886 It is also used by the --print-search-dirs flag. */
1889 build_search_list (paths
, prefix
, check_dir_p
)
1890 struct path_prefix
*paths
;
1894 int suffix_len
= (machine_suffix
) ? strlen (machine_suffix
) : 0;
1896 = (just_machine_suffix
) ? strlen (just_machine_suffix
) : 0;
1897 int first_time
= TRUE
;
1898 struct prefix_list
*pprefix
;
1900 obstack_grow (&collect_obstack
, prefix
, strlen (prefix
));
1902 for (pprefix
= paths
->plist
; pprefix
!= 0; pprefix
= pprefix
->next
)
1904 int len
= strlen (pprefix
->prefix
);
1908 || is_directory (pprefix
->prefix
, machine_suffix
, 0)))
1911 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1914 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1915 obstack_grow (&collect_obstack
, machine_suffix
, suffix_len
);
1918 if (just_machine_suffix
1919 && pprefix
->require_machine_suffix
== 2
1921 || is_directory (pprefix
->prefix
, just_machine_suffix
, 0)))
1924 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1927 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1928 obstack_grow (&collect_obstack
, just_machine_suffix
,
1932 if (! pprefix
->require_machine_suffix
)
1935 obstack_1grow (&collect_obstack
, PATH_SEPARATOR
);
1938 obstack_grow (&collect_obstack
, pprefix
->prefix
, len
);
1942 obstack_1grow (&collect_obstack
, '\0');
1943 return obstack_finish (&collect_obstack
);
1946 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1950 putenv_from_prefixes (paths
, env_var
)
1951 struct path_prefix
*paths
;
1952 const char *env_var
;
1954 putenv (build_search_list (paths
, env_var
, 1));
1957 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1958 access to check permissions.
1959 Return 0 if not found, otherwise return its name, allocated with malloc. */
1962 find_a_file (pprefix
, name
, mode
)
1963 struct path_prefix
*pprefix
;
1968 const char *file_suffix
= ((mode
& X_OK
) != 0 ? EXECUTABLE_SUFFIX
: "");
1969 struct prefix_list
*pl
;
1970 int len
= pprefix
->max_len
+ strlen (name
) + strlen (file_suffix
) + 1;
1972 #ifdef DEFAULT_ASSEMBLER
1973 if (! strcmp(name
, "as") && access (DEFAULT_ASSEMBLER
, mode
) == 0) {
1974 name
= DEFAULT_ASSEMBLER
;
1975 len
= strlen(name
)+1;
1976 temp
= xmalloc (len
);
1977 strcpy (temp
, name
);
1982 #ifdef DEFAULT_LINKER
1983 if (! strcmp(name
, "ld") && access (DEFAULT_LINKER
, mode
) == 0) {
1984 name
= DEFAULT_LINKER
;
1985 len
= strlen(name
)+1;
1986 temp
= xmalloc (len
);
1987 strcpy (temp
, name
);
1993 len
+= strlen (machine_suffix
);
1995 temp
= xmalloc (len
);
1997 /* Determine the filename to execute (special case for absolute paths). */
1999 if (IS_DIR_SEPARATOR (*name
)
2000 #ifdef HAVE_DOS_BASED_FILESYSTEM
2001 /* Check for disk name on MS-DOS-based systems. */
2002 || (name
[0] && name
[1] == ':' && IS_DIR_SEPARATOR (name
[2]))
2006 if (access (name
, mode
) == 0)
2008 strcpy (temp
, name
);
2013 for (pl
= pprefix
->plist
; pl
; pl
= pl
->next
)
2017 /* Some systems have a suffix for executable files.
2018 So try appending that first. */
2019 if (file_suffix
[0] != 0)
2021 strcpy (temp
, pl
->prefix
);
2022 strcat (temp
, machine_suffix
);
2023 strcat (temp
, name
);
2024 strcat (temp
, file_suffix
);
2025 if (access (temp
, mode
) == 0)
2027 if (pl
->used_flag_ptr
!= 0)
2028 *pl
->used_flag_ptr
= 1;
2033 /* Now try just the name. */
2034 strcpy (temp
, pl
->prefix
);
2035 strcat (temp
, machine_suffix
);
2036 strcat (temp
, name
);
2037 if (access (temp
, mode
) == 0)
2039 if (pl
->used_flag_ptr
!= 0)
2040 *pl
->used_flag_ptr
= 1;
2045 /* Certain prefixes are tried with just the machine type,
2046 not the version. This is used for finding as, ld, etc. */
2047 if (just_machine_suffix
&& pl
->require_machine_suffix
== 2)
2049 /* Some systems have a suffix for executable files.
2050 So try appending that first. */
2051 if (file_suffix
[0] != 0)
2053 strcpy (temp
, pl
->prefix
);
2054 strcat (temp
, just_machine_suffix
);
2055 strcat (temp
, name
);
2056 strcat (temp
, file_suffix
);
2057 if (access (temp
, mode
) == 0)
2059 if (pl
->used_flag_ptr
!= 0)
2060 *pl
->used_flag_ptr
= 1;
2065 strcpy (temp
, pl
->prefix
);
2066 strcat (temp
, just_machine_suffix
);
2067 strcat (temp
, name
);
2068 if (access (temp
, mode
) == 0)
2070 if (pl
->used_flag_ptr
!= 0)
2071 *pl
->used_flag_ptr
= 1;
2076 /* Certain prefixes can't be used without the machine suffix
2077 when the machine or version is explicitly specified. */
2078 if (! pl
->require_machine_suffix
)
2080 /* Some systems have a suffix for executable files.
2081 So try appending that first. */
2082 if (file_suffix
[0] != 0)
2084 strcpy (temp
, pl
->prefix
);
2085 strcat (temp
, name
);
2086 strcat (temp
, file_suffix
);
2087 if (access (temp
, mode
) == 0)
2089 if (pl
->used_flag_ptr
!= 0)
2090 *pl
->used_flag_ptr
= 1;
2095 strcpy (temp
, pl
->prefix
);
2096 strcat (temp
, name
);
2097 if (access (temp
, mode
) == 0)
2099 if (pl
->used_flag_ptr
!= 0)
2100 *pl
->used_flag_ptr
= 1;
2110 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2111 at the start of the list, otherwise it goes at the end.
2113 If WARN is nonzero, we will warn if no file is found
2114 through this prefix. WARN should point to an int
2115 which will be set to 1 if this entry is used.
2117 COMPONENT is the value to be passed to update_path.
2119 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2120 the complete value of machine_suffix.
2121 2 means try both machine_suffix and just_machine_suffix. */
2124 add_prefix (pprefix
, prefix
, component
, first
, require_machine_suffix
, warn
)
2125 struct path_prefix
*pprefix
;
2127 const char *component
;
2129 int require_machine_suffix
;
2132 struct prefix_list
*pl
, **prev
;
2135 if (! first
&& pprefix
->plist
)
2137 for (pl
= pprefix
->plist
; pl
->next
; pl
= pl
->next
)
2142 prev
= &pprefix
->plist
;
2144 /* Keep track of the longest prefix */
2146 prefix
= update_path (prefix
, component
);
2147 len
= strlen (prefix
);
2148 if (len
> pprefix
->max_len
)
2149 pprefix
->max_len
= len
;
2151 pl
= (struct prefix_list
*) xmalloc (sizeof (struct prefix_list
));
2152 pl
->prefix
= save_string (prefix
, len
);
2153 pl
->require_machine_suffix
= require_machine_suffix
;
2154 pl
->used_flag_ptr
= warn
;
2161 pl
->next
= (struct prefix_list
*) 0;
2165 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2168 unused_prefix_warnings (pprefix
)
2169 struct path_prefix
*pprefix
;
2171 struct prefix_list
*pl
= pprefix
->plist
;
2175 if (pl
->used_flag_ptr
!= 0 && !*pl
->used_flag_ptr
)
2177 if (pl
->require_machine_suffix
&& machine_suffix
)
2178 error ("file path prefix `%s%s' never used", pl
->prefix
,
2181 error ("file path prefix `%s' never used", pl
->prefix
);
2183 /* Prevent duplicate warnings. */
2184 *pl
->used_flag_ptr
= 1;
2192 /* Execute the command specified by the arguments on the current line of spec.
2193 When using pipes, this includes several piped-together commands
2194 with `|' between them.
2196 Return 0 if successful, -1 if failed. */
2202 int n_commands
; /* # of command. */
2206 const char *prog
; /* program name. */
2207 char **argv
; /* vector of args. */
2208 int pid
; /* pid of process for this command. */
2211 struct command
*commands
; /* each command buffer with above info. */
2213 /* Count # of piped commands. */
2214 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2215 if (strcmp (argbuf
[i
], "|") == 0)
2218 /* Get storage for each command. */
2220 = (struct command
*) alloca (n_commands
* sizeof (struct command
));
2222 /* Split argbuf into its separate piped processes,
2223 and record info about each one.
2224 Also search for the programs that are to be run. */
2226 commands
[0].prog
= argbuf
[0]; /* first command. */
2227 commands
[0].argv
= &argbuf
[0];
2228 string
= find_a_file (&exec_prefixes
, commands
[0].prog
, X_OK
);
2231 commands
[0].argv
[0] = string
;
2233 for (n_commands
= 1, i
= 0; i
< argbuf_index
; i
++)
2234 if (strcmp (argbuf
[i
], "|") == 0)
2235 { /* each command. */
2236 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2237 fatal ("-pipe not supported");
2239 argbuf
[i
] = 0; /* termination of command args. */
2240 commands
[n_commands
].prog
= argbuf
[i
+ 1];
2241 commands
[n_commands
].argv
= &argbuf
[i
+ 1];
2242 string
= find_a_file (&exec_prefixes
, commands
[n_commands
].prog
, X_OK
);
2244 commands
[n_commands
].argv
[0] = string
;
2248 argbuf
[argbuf_index
] = 0;
2250 /* If -v, print what we are about to do, and maybe query. */
2254 /* For help listings, put a blank line between sub-processes. */
2255 if (print_help_list
)
2256 fputc ('\n', stderr
);
2258 /* Print each piped command as a separate line. */
2259 for (i
= 0; i
< n_commands
; i
++)
2263 for (j
= commands
[i
].argv
; *j
; j
++)
2264 fprintf (stderr
, " %s", *j
);
2266 /* Print a pipe symbol after all but the last command. */
2267 if (i
+ 1 != n_commands
)
2268 fprintf (stderr
, " |");
2269 fprintf (stderr
, "\n");
2273 notice ("\nGo ahead? (y or n) ");
2277 while (getchar () != '\n')
2280 if (i
!= 'y' && i
!= 'Y')
2285 /* Run each piped subprocess. */
2287 for (i
= 0; i
< n_commands
; i
++)
2289 char *errmsg_fmt
, *errmsg_arg
;
2290 char *string
= commands
[i
].argv
[0];
2292 commands
[i
].pid
= pexecute (string
, commands
[i
].argv
,
2293 programname
, temp_filename
,
2294 &errmsg_fmt
, &errmsg_arg
,
2295 ((i
== 0 ? PEXECUTE_FIRST
: 0)
2296 | (i
+ 1 == n_commands
? PEXECUTE_LAST
: 0)
2297 | (string
== commands
[i
].prog
2298 ? PEXECUTE_SEARCH
: 0)
2299 | (verbose_flag
? PEXECUTE_VERBOSE
: 0)));
2301 if (commands
[i
].pid
== -1)
2302 pfatal_pexecute (errmsg_fmt
, errmsg_arg
);
2304 if (string
!= commands
[i
].prog
)
2310 /* Wait for all the subprocesses to finish.
2311 We don't care what order they finish in;
2312 we know that N_COMMANDS waits will get them all.
2313 Ignore subprocesses that we don't know about,
2314 since they can be spawned by the process that exec'ed us. */
2319 for (i
= 0; i
< n_commands
; )
2325 pid
= pwait (commands
[i
].pid
, &status
, 0);
2329 for (j
= 0; j
< n_commands
; j
++)
2330 if (commands
[j
].pid
== pid
)
2335 if (WIFSIGNALED (status
))
2337 fatal ("Internal compiler error: program %s got fatal signal %d",
2338 commands
[j
].prog
, WTERMSIG (status
));
2342 else if (WIFEXITED (status
)
2343 && WEXITSTATUS (status
) >= MIN_FATAL_STATUS
)
2353 /* Find all the switches given to us
2354 and make a vector describing them.
2355 The elements of the vector are strings, one per switch given.
2356 If a switch uses following arguments, then the `part1' field
2357 is the switch itself and the `args' field
2358 is a null-terminated vector containing the following arguments.
2359 The `live_cond' field is 1 if the switch is true in a conditional spec,
2360 -1 if false (overridden by a later switch), and is initialized to zero.
2361 The `validated' field is nonzero if any spec has looked at this switch;
2362 if it remains zero at the end of the run, it must be meaningless. */
2372 static struct switchstr
*switches
;
2374 static int n_switches
;
2379 const char *language
;
2382 /* Also a vector of input files specified. */
2384 static struct infile
*infiles
;
2386 static int n_infiles
;
2388 /* This counts the number of libraries added by lang_specific_driver, so that
2389 we can tell if there were any user supplied any files or libraries. */
2391 static int added_libraries
;
2393 /* And a vector of corresponding output files is made up later. */
2395 static const char **outfiles
;
2397 /* Used to track if none of the -B paths are used. */
2400 /* Used to track if standard path isn't used and -b or -V is specified. */
2401 static int warn_std
;
2403 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2404 static int *warn_std_ptr
= 0;
2407 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2409 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2410 is true if we should look for an executable suffix as well. */
2413 convert_filename (name
, do_exe
)
2423 len
= strlen (name
);
2425 #ifdef HAVE_OBJECT_SUFFIX
2426 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2428 && name
[len
- 2] == '.'
2429 && name
[len
- 1] == 'o')
2431 obstack_grow (&obstack
, name
, len
- 2);
2432 obstack_grow0 (&obstack
, OBJECT_SUFFIX
, strlen (OBJECT_SUFFIX
));
2433 name
= obstack_finish (&obstack
);
2437 #ifdef HAVE_EXECUTABLE_SUFFIX
2438 /* If there is no filetype, make it the executable suffix (which includes
2439 the "."). But don't get confused if we have just "-o". */
2440 if (! do_exe
|| EXECUTABLE_SUFFIX
[0] == 0 || (len
== 2 && name
[0] == '-'))
2443 for (i
= len
- 1; i
>= 0; i
--)
2444 if (IS_DIR_SEPARATOR (name
[i
]))
2447 for (i
++; i
< len
; i
++)
2451 obstack_grow (&obstack
, name
, len
);
2452 obstack_grow0 (&obstack
, EXECUTABLE_SUFFIX
, strlen (EXECUTABLE_SUFFIX
));
2453 name
= obstack_finish (&obstack
);
2460 /* Display the command line switches accepted by gcc. */
2464 printf ("Usage: %s [options] file...\n", programname
);
2465 printf ("Options:\n");
2467 printf (" --help Display this information\n");
2469 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2470 printf (" -dumpspecs Display all of the built in spec strings\n");
2471 printf (" -dumpversion Display the version of the compiler\n");
2472 printf (" -dumpmachine Display the compiler's target processor\n");
2473 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2474 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2475 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2476 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2477 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2478 printf (" -print-multi-lib Display the mapping between command line options and\n");
2479 printf (" multiple library search directories\n");
2480 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2481 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2482 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2483 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2484 printf (" -save-temps Do not delete intermediate files\n");
2485 printf (" -pipe Use pipes rather than intermediate files\n");
2486 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2487 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2488 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2489 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2490 printf (" -V <version> Run gcc version number <version>, if installed\n");
2491 printf (" -v Display the programs invoked by the compiler\n");
2492 printf (" -E Preprocess only; do not compile, assemble or link\n");
2493 printf (" -S Compile only; do not assemble or link\n");
2494 printf (" -c Compile and assemble, but do not link\n");
2495 printf (" -o <file> Place the output into <file>\n");
2496 printf (" -x <language> Specify the language of the following input files\n");
2497 printf (" Permissable languages include: c c++ assembler none\n");
2498 printf (" 'none' means revert to the default behaviour of\n");
2499 printf (" guessing the language based on the file's extension\n");
2501 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2502 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2504 printf ("on to these processes the -W<letter> options must be used.\n");
2506 /* The rest of the options are displayed by invocations of the various
2511 add_preprocessor_option (option
, len
)
2512 const char * option
;
2515 n_preprocessor_options
++;
2517 if (! preprocessor_options
)
2518 preprocessor_options
2519 = (char **) xmalloc (n_preprocessor_options
* sizeof (char *));
2521 preprocessor_options
2522 = (char **) xrealloc (preprocessor_options
,
2523 n_preprocessor_options
* sizeof (char *));
2525 preprocessor_options
[n_preprocessor_options
- 1] =
2526 save_string (option
, len
);
2530 add_assembler_option (option
, len
)
2531 const char * option
;
2534 n_assembler_options
++;
2536 if (! assembler_options
)
2538 = (char **) xmalloc (n_assembler_options
* sizeof (char *));
2541 = (char **) xrealloc (assembler_options
,
2542 n_assembler_options
* sizeof (char *));
2544 assembler_options
[n_assembler_options
- 1] = save_string (option
, len
);
2548 add_linker_option (option
, len
)
2549 const char * option
;
2554 if (! linker_options
)
2556 = (char **) xmalloc (n_linker_options
* sizeof (char *));
2559 = (char **) xrealloc (linker_options
,
2560 n_linker_options
* sizeof (char *));
2562 linker_options
[n_linker_options
- 1] = save_string (option
, len
);
2565 /* Create the vector `switches' and its contents.
2566 Store its length in `n_switches'. */
2569 process_command (argc
, argv
)
2576 char *spec_lang
= 0;
2577 int last_language_n_infiles
;
2580 int lang_n_infiles
= 0;
2582 GET_ENV_PATH_LIST (gcc_exec_prefix
, "GCC_EXEC_PREFIX");
2586 added_libraries
= 0;
2588 /* Figure compiler version from version string. */
2590 compiler_version
= temp1
=
2591 save_string (version_string
, strlen (version_string
));
2592 for (; *temp1
; ++temp1
)
2601 /* Set up the default search paths. */
2603 if (gcc_exec_prefix
)
2605 int len
= strlen (gcc_exec_prefix
);
2606 if (len
> (int) sizeof ("/lib/gcc-lib/")-1
2607 && (IS_DIR_SEPARATOR (gcc_exec_prefix
[len
-1])))
2609 temp
= gcc_exec_prefix
+ len
- sizeof ("/lib/gcc-lib/") + 1;
2610 if (IS_DIR_SEPARATOR (*temp
)
2611 && strncmp (temp
+1, "lib", 3) == 0
2612 && IS_DIR_SEPARATOR (temp
[4])
2613 && strncmp (temp
+5, "gcc-lib", 7) == 0)
2614 len
-= sizeof ("/lib/gcc-lib/") - 1;
2617 set_std_prefix (gcc_exec_prefix
, len
);
2618 add_prefix (&exec_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2619 add_prefix (&startfile_prefixes
, gcc_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
2622 /* COMPILER_PATH and LIBRARY_PATH have values
2623 that are lists of directory names with colons. */
2625 GET_ENV_PATH_LIST (temp
, "COMPILER_PATH");
2628 const char *startp
, *endp
;
2629 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2631 startp
= endp
= temp
;
2634 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2636 strncpy (nstore
, startp
, endp
-startp
);
2638 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2639 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2641 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2642 nstore
[endp
-startp
+1] = 0;
2645 nstore
[endp
-startp
] = 0;
2646 add_prefix (&exec_prefixes
, nstore
, 0, 0, 0, NULL_PTR
);
2647 add_prefix (&include_prefixes
,
2648 concat (nstore
, "include", NULL_PTR
),
2652 endp
= startp
= endp
+ 1;
2659 GET_ENV_PATH_LIST (temp
, "LIBRARY_PATH");
2660 if (temp
&& *cross_compile
== '0')
2662 const char *startp
, *endp
;
2663 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2665 startp
= endp
= temp
;
2668 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2670 strncpy (nstore
, startp
, endp
-startp
);
2672 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2673 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2675 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2676 nstore
[endp
-startp
+1] = 0;
2679 nstore
[endp
-startp
] = 0;
2680 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2684 endp
= startp
= endp
+ 1;
2691 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2692 GET_ENV_PATH_LIST (temp
, "LPATH");
2693 if (temp
&& *cross_compile
== '0')
2695 const char *startp
, *endp
;
2696 char *nstore
= (char *) alloca (strlen (temp
) + 3);
2698 startp
= endp
= temp
;
2701 if (*endp
== PATH_SEPARATOR
|| *endp
== 0)
2703 strncpy (nstore
, startp
, endp
-startp
);
2705 strcpy (nstore
, concat (".", dir_separator_str
, NULL_PTR
));
2706 else if (!IS_DIR_SEPARATOR (endp
[-1]))
2708 nstore
[endp
-startp
] = DIR_SEPARATOR
;
2709 nstore
[endp
-startp
+1] = 0;
2712 nstore
[endp
-startp
] = 0;
2713 add_prefix (&startfile_prefixes
, nstore
, NULL_PTR
,
2717 endp
= startp
= endp
+ 1;
2724 /* Convert new-style -- options to old-style. */
2725 translate_options (&argc
, &argv
);
2727 /* Do language-specific adjustment/addition of flags. */
2728 lang_specific_driver (fatal
, &argc
, &argv
, &added_libraries
);
2730 /* Scan argv twice. Here, the first time, just count how many switches
2731 there will be in their vector, and how many input files in theirs.
2732 Here we also parse the switches that cc itself uses (e.g. -v). */
2734 for (i
= 1; i
< argc
; i
++)
2736 if (! strcmp (argv
[i
], "-dumpspecs"))
2738 struct spec_list
*sl
;
2740 for (sl
= specs
; sl
; sl
= sl
->next
)
2741 printf ("*%s:\n%s\n\n", sl
->name
, *(sl
->ptr_spec
));
2742 if (link_command_spec
)
2743 printf ("*link_command:\n%s\n\n", link_command_spec
);
2746 else if (! strcmp (argv
[i
], "-dumpversion"))
2748 printf ("%s\n", spec_version
);
2751 else if (! strcmp (argv
[i
], "-dumpmachine"))
2753 printf ("%s\n", spec_machine
);
2756 else if (strcmp (argv
[i
], "-fhelp") == 0)
2758 /* translate_options () has turned --help into -fhelp. */
2759 print_help_list
= 1;
2761 /* We will be passing a dummy file on to the sub-processes. */
2765 add_preprocessor_option ("--help", 6);
2766 add_assembler_option ("--help", 6);
2767 add_linker_option ("--help", 6);
2769 else if (! strcmp (argv
[i
], "-print-search-dirs"))
2770 print_search_dirs
= 1;
2771 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
2772 print_file_name
= "libgcc.a";
2773 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
2774 print_file_name
= argv
[i
] + 17;
2775 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
2776 print_prog_name
= argv
[i
] + 17;
2777 else if (! strcmp (argv
[i
], "-print-multi-lib"))
2778 print_multi_lib
= 1;
2779 else if (! strcmp (argv
[i
], "-print-multi-directory"))
2780 print_multi_directory
= 1;
2781 else if (! strncmp (argv
[i
], "-Wa,", 4))
2784 /* Pass the rest of this option to the assembler. */
2786 /* Split the argument at commas. */
2788 for (j
= 4; argv
[i
][j
]; j
++)
2789 if (argv
[i
][j
] == ',')
2791 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2795 /* Record the part after the last comma. */
2796 add_assembler_option (argv
[i
] + prev
, j
- prev
);
2798 else if (! strncmp (argv
[i
], "-Wp,", 4))
2801 /* Pass the rest of this option to the preprocessor. */
2803 /* Split the argument at commas. */
2805 for (j
= 4; argv
[i
][j
]; j
++)
2806 if (argv
[i
][j
] == ',')
2808 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2812 /* Record the part after the last comma. */
2813 add_preprocessor_option (argv
[i
] + prev
, j
- prev
);
2815 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
2816 /* The +e options to the C++ front-end. */
2818 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
2821 /* Split the argument at commas. */
2822 for (j
= 3; argv
[i
][j
]; j
++)
2823 n_infiles
+= (argv
[i
][j
] == ',');
2825 else if (strcmp (argv
[i
], "-Xlinker") == 0)
2828 fatal ("argument to `-Xlinker' is missing");
2833 else if (strncmp (argv
[i
], "-l", 2) == 0)
2835 else if (strcmp (argv
[i
], "-save-temps") == 0)
2837 save_temps_flag
= 1;
2840 else if (strcmp (argv
[i
], "-specs") == 0)
2842 struct user_specs
*user
= (struct user_specs
*)
2843 xmalloc (sizeof (struct user_specs
));
2845 fatal ("argument to `-specs' is missing");
2847 user
->next
= (struct user_specs
*)0;
2848 user
->filename
= argv
[i
];
2849 if (user_specs_tail
)
2850 user_specs_tail
->next
= user
;
2852 user_specs_head
= user
;
2853 user_specs_tail
= user
;
2855 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
2857 struct user_specs
*user
= (struct user_specs
*)
2858 xmalloc (sizeof (struct user_specs
));
2859 if (strlen (argv
[i
]) == 7)
2860 fatal ("argument to `-specs=' is missing");
2862 user
->next
= (struct user_specs
*)0;
2863 user
->filename
= argv
[i
]+7;
2864 if (user_specs_tail
)
2865 user_specs_tail
->next
= user
;
2867 user_specs_head
= user
;
2868 user_specs_tail
= user
;
2870 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
2872 register char *p
= &argv
[i
][1];
2873 register int c
= *p
;
2879 if (p
[1] == 0 && i
+ 1 == argc
)
2880 fatal ("argument to `-b' is missing");
2882 spec_machine
= argv
[++i
];
2884 spec_machine
= p
+ 1;
2886 warn_std_ptr
= &warn_std
;
2892 if (p
[1] == 0 && i
+ 1 == argc
)
2893 fatal ("argument to `-B' is missing");
2898 add_prefix (&exec_prefixes
, value
, NULL_PTR
, 1, 0, &warn_B
);
2899 add_prefix (&startfile_prefixes
, value
, NULL_PTR
,
2901 add_prefix (&include_prefixes
, concat (value
, "include",
2903 NULL_PTR
, 1, 0, NULL_PTR
);
2905 /* As a kludge, if the arg is "[foo/]stageN/", just add
2906 "[foo/]include" to the include prefix. */
2908 int len
= strlen (value
);
2911 && (IS_DIR_SEPARATOR (value
[len
- 8]))))
2912 && strncmp (value
+ len
- 7, "stage", 5) == 0
2913 && ISDIGIT (value
[len
- 2])
2914 && (IS_DIR_SEPARATOR (value
[len
- 1])))
2917 add_prefix (&include_prefixes
, "include", NULL_PTR
,
2921 char *string
= xmalloc (len
+ 1);
2922 strncpy (string
, value
, len
-7);
2923 strcpy (string
+len
-7, "include");
2924 add_prefix (&include_prefixes
, string
, NULL_PTR
,
2933 case 'v': /* Print our subcommands and print versions. */
2935 /* If they do anything other than exactly `-v', don't set
2936 verbose_flag; rather, continue on to give the error. */
2944 if (p
[1] == 0 && i
+ 1 == argc
)
2945 fatal ("argument to `-V' is missing");
2947 spec_version
= argv
[++i
];
2949 spec_version
= p
+ 1;
2950 compiler_version
= spec_version
;
2951 warn_std_ptr
= &warn_std
;
2953 /* Validate the version number. Use the same checks
2954 done when inserting it into a spec.
2956 The format of the version string is
2957 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2959 const char *v
= compiler_version
;
2961 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2962 while (! ISDIGIT (*v
))
2965 if (v
> compiler_version
&& v
[-1] != '-')
2966 fatal ("invalid version number format");
2968 /* Set V after the first period. */
2969 while (ISDIGIT (*v
))
2973 fatal ("invalid version number format");
2976 while (ISDIGIT (*v
))
2979 if (*v
!= 0 && *v
!= ' ' && *v
!= '.' && *v
!= '-')
2980 fatal ("invalid version number format");
2996 #if defined(HAVE_EXECUTABLE_SUFFIX)
3001 /* Forward scan, just in case -S or -c is specified
3008 if (argv
[j
][0] == '-')
3010 if (SWITCH_CURTAILS_COMPILATION (argv
[j
][1])
3016 else if (skip
= SWITCH_TAKES_ARG (argv
[j
][1]))
3017 j
+= skip
- (argv
[j
][2] != 0);
3018 else if (skip
= WORD_SWITCH_TAKES_ARG (argv
[j
] + 1))
3025 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3027 argv
[i
+1] = convert_filename (argv
[i
+1], ! have_c
);
3029 argv
[i
] = convert_filename (argv
[i
], ! have_c
);
3037 if (SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3038 i
+= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3039 else if (WORD_SWITCH_TAKES_ARG (p
))
3040 i
+= WORD_SWITCH_TAKES_ARG (p
);
3050 if (have_c
&& have_o
&& lang_n_infiles
> 1)
3051 fatal ("cannot specify -o with -c or -S and multiple compilations");
3053 /* Set up the search paths before we go looking for config files. */
3055 /* These come before the md prefixes so that we will find gcc's subcommands
3056 (such as cpp) rather than those of the host system. */
3057 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3058 as well as trying the machine and the version. */
3060 add_prefix (&exec_prefixes
, standard_exec_prefix
, "BINUTILS",
3061 0, 2, warn_std_ptr
);
3062 add_prefix (&exec_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3063 0, 2, warn_std_ptr
);
3066 add_prefix (&startfile_prefixes
, standard_exec_prefix
, "BINUTILS",
3067 0, 1, warn_std_ptr
);
3068 add_prefix (&startfile_prefixes
, standard_exec_prefix_1
, "BINUTILS",
3069 0, 1, warn_std_ptr
);
3071 tooldir_prefix
= concat (tooldir_base_prefix
, spec_machine
,
3072 dir_separator_str
, NULL_PTR
);
3074 /* If tooldir is relative, base it on exec_prefixes. A relative
3075 tooldir lets us move the installed tree as a unit.
3077 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3078 directories, so that we can search both the user specified directory
3079 and the standard place. */
3081 if (!IS_DIR_SEPARATOR (*tooldir_prefix
))
3083 if (gcc_exec_prefix
)
3085 char *gcc_exec_tooldir_prefix
3086 = concat (gcc_exec_prefix
, spec_machine
, dir_separator_str
,
3087 spec_version
, dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3089 add_prefix (&exec_prefixes
,
3090 concat (gcc_exec_tooldir_prefix
, "bin",
3091 dir_separator_str
, NULL_PTR
),
3092 NULL_PTR
, 0, 0, NULL_PTR
);
3093 add_prefix (&startfile_prefixes
,
3094 concat (gcc_exec_tooldir_prefix
, "lib",
3095 dir_separator_str
, NULL_PTR
),
3096 NULL_PTR
, 0, 0, NULL_PTR
);
3099 tooldir_prefix
= concat (standard_exec_prefix
, spec_machine
,
3100 dir_separator_str
, spec_version
,
3101 dir_separator_str
, tooldir_prefix
, NULL_PTR
);
3104 add_prefix (&exec_prefixes
,
3105 concat (tooldir_prefix
, "bin", dir_separator_str
, NULL_PTR
),
3106 "BINUTILS", 0, 0, NULL_PTR
);
3107 add_prefix (&startfile_prefixes
,
3108 concat (tooldir_prefix
, "lib", dir_separator_str
, NULL_PTR
),
3109 "BINUTILS", 0, 0, NULL_PTR
);
3111 /* More prefixes are enabled in main, after we read the specs file
3112 and determine whether this is cross-compilation or not. */
3115 /* Then create the space for the vectors and scan again. */
3117 switches
= ((struct switchstr
*)
3118 xmalloc ((n_switches
+ 1) * sizeof (struct switchstr
)));
3119 infiles
= (struct infile
*) xmalloc ((n_infiles
+ 1) * sizeof (struct infile
));
3122 last_language_n_infiles
= -1;
3124 /* This, time, copy the text of each switch and store a pointer
3125 to the copy in the vector of switches.
3126 Store all the infiles in their vector. */
3128 for (i
= 1; i
< argc
; i
++)
3130 /* Just skip the switches that were handled by the preceding loop. */
3131 if (! strncmp (argv
[i
], "-Wa,", 4))
3133 else if (! strncmp (argv
[i
], "-Wp,", 4))
3135 else if (! strcmp (argv
[i
], "-print-search-dirs"))
3137 else if (! strcmp (argv
[i
], "-print-libgcc-file-name"))
3139 else if (! strncmp (argv
[i
], "-print-file-name=", 17))
3141 else if (! strncmp (argv
[i
], "-print-prog-name=", 17))
3143 else if (! strcmp (argv
[i
], "-print-multi-lib"))
3145 else if (! strcmp (argv
[i
], "-print-multi-directory"))
3147 else if (strcmp (argv
[i
], "-fhelp") == 0)
3151 /* Create a dummy input file, so that we can pass --help on to
3152 the various sub-processes. */
3153 infiles
[n_infiles
].language
= "c";
3154 infiles
[n_infiles
++].name
= "help-dummy";
3156 /* Preserve the --help switch so that it can be caught by the
3158 switches
[n_switches
].part1
= "--help";
3159 switches
[n_switches
].args
= 0;
3160 switches
[n_switches
].live_cond
= 0;
3161 switches
[n_switches
].validated
= 0;
3166 else if (argv
[i
][0] == '+' && argv
[i
][1] == 'e')
3168 /* Compensate for the +e options to the C++ front-end;
3169 they're there simply for cfront call-compatibility. We do
3170 some magic in default_compilers to pass them down properly.
3171 Note we deliberately start at the `+' here, to avoid passing
3172 -e0 or -e1 down into the linker. */
3173 switches
[n_switches
].part1
= &argv
[i
][0];
3174 switches
[n_switches
].args
= 0;
3175 switches
[n_switches
].live_cond
= 0;
3176 switches
[n_switches
].validated
= 0;
3179 else if (strncmp (argv
[i
], "-Wl,", 4) == 0)
3182 /* Split the argument at commas. */
3184 for (j
= 4; argv
[i
][j
]; j
++)
3185 if (argv
[i
][j
] == ',')
3187 infiles
[n_infiles
].language
= "*";
3188 infiles
[n_infiles
++].name
3189 = save_string (argv
[i
] + prev
, j
- prev
);
3192 /* Record the part after the last comma. */
3193 infiles
[n_infiles
].language
= "*";
3194 infiles
[n_infiles
++].name
= argv
[i
] + prev
;
3196 else if (strcmp (argv
[i
], "-Xlinker") == 0)
3198 infiles
[n_infiles
].language
= "*";
3199 infiles
[n_infiles
++].name
= argv
[++i
];
3201 else if (strncmp (argv
[i
], "-l", 2) == 0)
3203 infiles
[n_infiles
].language
= "*";
3204 infiles
[n_infiles
++].name
= argv
[i
];
3206 else if (strcmp (argv
[i
], "-specs") == 0)
3208 else if (strncmp (argv
[i
], "-specs=", 7) == 0)
3210 /* -save-temps overrides -pipe, so that temp files are produced */
3211 else if (save_temps_flag
&& strcmp (argv
[i
], "-pipe") == 0)
3212 error ("Warning: -pipe ignored since -save-temps specified");
3213 else if (argv
[i
][0] == '-' && argv
[i
][1] != 0)
3215 register char *p
= &argv
[i
][1];
3216 register int c
= *p
;
3220 if (p
[1] == 0 && i
+ 1 == argc
)
3221 fatal ("argument to `-x' is missing");
3223 spec_lang
= argv
[++i
];
3226 if (! strcmp (spec_lang
, "none"))
3227 /* Suppress the warning if -xnone comes after the last input
3228 file, because alternate command interfaces like g++ might
3229 find it useful to place -xnone after each input file. */
3232 last_language_n_infiles
= n_infiles
;
3235 switches
[n_switches
].part1
= p
;
3236 /* Deal with option arguments in separate argv elements. */
3237 if ((SWITCH_TAKES_ARG (c
) > (p
[1] != 0))
3238 || WORD_SWITCH_TAKES_ARG (p
))
3241 int n_args
= WORD_SWITCH_TAKES_ARG (p
);
3245 /* Count only the option arguments in separate argv elements. */
3246 n_args
= SWITCH_TAKES_ARG (c
) - (p
[1] != 0);
3248 if (i
+ n_args
>= argc
)
3249 fatal ("argument to `-%s' is missing", p
);
3250 switches
[n_switches
].args
3251 = (char **) xmalloc ((n_args
+ 1) * sizeof (char *));
3253 switches
[n_switches
].args
[j
++] = argv
[++i
];
3254 /* Null-terminate the vector. */
3255 switches
[n_switches
].args
[j
] = 0;
3257 else if (index (switches_need_spaces
, c
))
3259 /* On some systems, ld cannot handle some options without
3260 a space. So split the option from its argument. */
3261 char *part1
= (char *) xmalloc (2);
3265 switches
[n_switches
].part1
= part1
;
3266 switches
[n_switches
].args
= (char **) xmalloc (2 * sizeof (char *));
3267 switches
[n_switches
].args
[0] = xmalloc (strlen (p
));
3268 strcpy (switches
[n_switches
].args
[0], &p
[1]);
3269 switches
[n_switches
].args
[1] = 0;
3272 switches
[n_switches
].args
= 0;
3274 switches
[n_switches
].live_cond
= 0;
3275 switches
[n_switches
].validated
= 0;
3276 /* This is always valid, since gcc.c itself understands it. */
3277 if (!strcmp (p
, "save-temps"))
3278 switches
[n_switches
].validated
= 1;
3281 char ch
= switches
[n_switches
].part1
[0];
3282 if (ch
== 'V' || ch
== 'b' || ch
== 'B')
3283 switches
[n_switches
].validated
= 1;
3289 #ifdef HAVE_OBJECT_SUFFIX
3290 argv
[i
] = convert_filename (argv
[i
], 0);
3293 if (strcmp (argv
[i
], "-") != 0 && access (argv
[i
], R_OK
) < 0)
3295 perror_with_name (argv
[i
]);
3300 infiles
[n_infiles
].language
= spec_lang
;
3301 infiles
[n_infiles
++].name
= argv
[i
];
3306 if (n_infiles
== last_language_n_infiles
&& spec_lang
!= 0)
3307 error ("Warning: `-x %s' after last input file has no effect", spec_lang
);
3309 switches
[n_switches
].part1
= 0;
3310 infiles
[n_infiles
].name
= 0;
3313 /* Process a spec string, accumulating and running commands. */
3315 /* These variables describe the input file name.
3316 input_file_number is the index on outfiles of this file,
3317 so that the output file name can be stored for later use by %o.
3318 input_basename is the start of the part of the input file
3319 sans all directory names, and basename_length is the number
3320 of characters starting there excluding the suffix .c or whatever. */
3322 const char *input_filename
;
3323 static int input_file_number
;
3324 size_t input_filename_length
;
3325 static int basename_length
;
3326 static const char *input_basename
;
3327 static const char *input_suffix
;
3329 /* These are variables used within do_spec and do_spec_1. */
3331 /* Nonzero if an arg has been started and not yet terminated
3332 (with space, tab or newline). */
3333 static int arg_going
;
3335 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3336 is a temporary file name. */
3337 static int delete_this_arg
;
3339 /* Nonzero means %w has been seen; the next arg to be terminated
3340 is the output file name of this compilation. */
3341 static int this_is_output_file
;
3343 /* Nonzero means %s has been seen; the next arg to be terminated
3344 is the name of a library file and we should try the standard
3345 search dirs for it. */
3346 static int this_is_library_file
;
3348 /* Nonzero means that the input of this command is coming from a pipe. */
3349 static int input_from_pipe
;
3351 /* Process the spec SPEC and run the commands specified therein.
3352 Returns 0 if the spec is successfully processed; -1 if failed. */
3362 delete_this_arg
= 0;
3363 this_is_output_file
= 0;
3364 this_is_library_file
= 0;
3365 input_from_pipe
= 0;
3367 value
= do_spec_1 (spec
, 0, NULL_PTR
);
3369 /* Force out any unfinished command.
3370 If -pipe, this forces out the last command if it ended in `|'. */
3373 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3376 if (argbuf_index
> 0)
3383 /* Process the sub-spec SPEC as a portion of a larger spec.
3384 This is like processing a whole spec except that we do
3385 not initialize at the beginning and we do not supply a
3386 newline by default at the end.
3387 INSWITCH nonzero means don't process %-sequences in SPEC;
3388 in this case, % is treated as an ordinary character.
3389 This is used while substituting switches.
3390 INSWITCH nonzero also causes SPC not to terminate an argument.
3392 Value is zero unless a line was finished
3393 and the command on that line reported an error. */
3396 do_spec_1 (spec
, inswitch
, soft_matched_part
)
3399 const char *soft_matched_part
;
3401 register const char *p
= spec
;
3408 /* If substituting a switch, treat all chars like letters.
3409 Otherwise, NL, SPC, TAB and % are special. */
3410 switch (inswitch
? 'a' : c
)
3413 /* End of line: finish any pending argument,
3414 then run the pending command if one has been started. */
3417 obstack_1grow (&obstack
, 0);
3418 string
= obstack_finish (&obstack
);
3419 if (this_is_library_file
)
3420 string
= find_file (string
);
3421 store_arg (string
, delete_this_arg
, this_is_output_file
);
3422 if (this_is_output_file
)
3423 outfiles
[input_file_number
] = string
;
3427 if (argbuf_index
> 0 && !strcmp (argbuf
[argbuf_index
- 1], "|"))
3429 for (i
= 0; i
< n_switches
; i
++)
3430 if (!strcmp (switches
[i
].part1
, "pipe"))
3433 /* A `|' before the newline means use a pipe here,
3434 but only if -pipe was specified.
3435 Otherwise, execute now and don't pass the `|' as an arg. */
3438 input_from_pipe
= 1;
3439 switches
[i
].validated
= 1;
3446 if (argbuf_index
> 0)
3452 /* Reinitialize for a new command, and for a new argument. */
3455 delete_this_arg
= 0;
3456 this_is_output_file
= 0;
3457 this_is_library_file
= 0;
3458 input_from_pipe
= 0;
3462 /* End any pending argument. */
3465 obstack_1grow (&obstack
, 0);
3466 string
= obstack_finish (&obstack
);
3467 if (this_is_library_file
)
3468 string
= find_file (string
);
3469 store_arg (string
, delete_this_arg
, this_is_output_file
);
3470 if (this_is_output_file
)
3471 outfiles
[input_file_number
] = string
;
3475 obstack_1grow (&obstack
, c
);
3481 /* Space or tab ends an argument if one is pending. */
3484 obstack_1grow (&obstack
, 0);
3485 string
= obstack_finish (&obstack
);
3486 if (this_is_library_file
)
3487 string
= find_file (string
);
3488 store_arg (string
, delete_this_arg
, this_is_output_file
);
3489 if (this_is_output_file
)
3490 outfiles
[input_file_number
] = string
;
3492 /* Reinitialize for a new argument. */
3494 delete_this_arg
= 0;
3495 this_is_output_file
= 0;
3496 this_is_library_file
= 0;
3503 fatal ("Invalid specification! Bug in cc.");
3506 obstack_grow (&obstack
, input_basename
, basename_length
);
3511 delete_this_arg
= 2;
3514 /* Dump out the directories specified with LIBRARY_PATH,
3515 followed by the absolute directories
3516 that we search for startfiles. */
3519 struct prefix_list
*pl
= startfile_prefixes
.plist
;
3520 size_t bufsize
= 100;
3521 char *buffer
= (char *) xmalloc (bufsize
);
3524 for (; pl
; pl
= pl
->next
)
3526 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3527 /* Used on systems which record the specified -L dirs
3528 and use them to search for dynamic linking. */
3529 /* Relative directories always come from -B,
3530 and it is better not to use them for searching
3531 at run time. In particular, stage1 loses */
3532 if (!IS_DIR_SEPARATOR (pl
->prefix
[0]))
3535 /* Try subdirectory if there is one. */
3536 if (multilib_dir
!= NULL
)
3540 if (strlen (pl
->prefix
) + strlen (machine_suffix
)
3542 bufsize
= (strlen (pl
->prefix
)
3543 + strlen (machine_suffix
)) * 2 + 1;
3544 buffer
= (char *) xrealloc (buffer
, bufsize
);
3545 strcpy (buffer
, pl
->prefix
);
3546 strcat (buffer
, machine_suffix
);
3547 if (is_directory (buffer
, multilib_dir
, 1))
3549 do_spec_1 ("-L", 0, NULL_PTR
);
3550 #ifdef SPACE_AFTER_L_OPTION
3551 do_spec_1 (" ", 0, NULL_PTR
);
3553 do_spec_1 (buffer
, 1, NULL_PTR
);
3554 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3555 /* Make this a separate argument. */
3556 do_spec_1 (" ", 0, NULL_PTR
);
3559 if (!pl
->require_machine_suffix
)
3561 if (is_directory (pl
->prefix
, multilib_dir
, 1))
3563 do_spec_1 ("-L", 0, NULL_PTR
);
3564 #ifdef SPACE_AFTER_L_OPTION
3565 do_spec_1 (" ", 0, NULL_PTR
);
3567 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3568 do_spec_1 (multilib_dir
, 1, NULL_PTR
);
3569 /* Make this a separate argument. */
3570 do_spec_1 (" ", 0, NULL_PTR
);
3576 if (is_directory (pl
->prefix
, machine_suffix
, 1))
3578 do_spec_1 ("-L", 0, NULL_PTR
);
3579 #ifdef SPACE_AFTER_L_OPTION
3580 do_spec_1 (" ", 0, NULL_PTR
);
3582 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3583 /* Remove slash from machine_suffix. */
3584 if (strlen (machine_suffix
) >= bufsize
)
3585 bufsize
= strlen (machine_suffix
) * 2 + 1;
3586 buffer
= (char *) xrealloc (buffer
, bufsize
);
3587 strcpy (buffer
, machine_suffix
);
3588 idx
= strlen (buffer
);
3589 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3590 buffer
[idx
- 1] = 0;
3591 do_spec_1 (buffer
, 1, NULL_PTR
);
3592 /* Make this a separate argument. */
3593 do_spec_1 (" ", 0, NULL_PTR
);
3596 if (!pl
->require_machine_suffix
)
3598 if (is_directory (pl
->prefix
, "", 1))
3600 do_spec_1 ("-L", 0, NULL_PTR
);
3601 #ifdef SPACE_AFTER_L_OPTION
3602 do_spec_1 (" ", 0, NULL_PTR
);
3604 /* Remove slash from pl->prefix. */
3605 if (strlen (pl
->prefix
) >= bufsize
)
3606 bufsize
= strlen (pl
->prefix
) * 2 + 1;
3607 buffer
= (char *) xrealloc (buffer
, bufsize
);
3608 strcpy (buffer
, pl
->prefix
);
3609 idx
= strlen (buffer
);
3610 if (IS_DIR_SEPARATOR (buffer
[idx
- 1]))
3611 buffer
[idx
- 1] = 0;
3612 do_spec_1 (buffer
, 1, NULL_PTR
);
3613 /* Make this a separate argument. */
3614 do_spec_1 (" ", 0, NULL_PTR
);
3623 /* %efoo means report an error with `foo' as error message
3624 and don't execute any more commands for this file. */
3628 while (*p
!= 0 && *p
!= '\n') p
++;
3629 buf
= (char *) alloca (p
- q
+ 1);
3630 strncpy (buf
, q
, p
- q
);
3640 if (save_temps_flag
)
3642 obstack_grow (&obstack
, input_basename
, basename_length
);
3643 delete_this_arg
= 0;
3647 #ifdef MKTEMP_EACH_FILE
3648 /* ??? This has a problem: the total number of
3649 values mktemp can return is limited.
3650 That matters for the names of object files.
3651 In 2.4, do something about that. */
3652 struct temp_name
*t
;
3654 const char *suffix
= p
;
3656 if (p
[0] == '%' && p
[1] == 'O')
3659 /* We don't support extra suffix characters after %O. */
3660 if (*p
== '.' || ISALPHA ((unsigned char)*p
))
3662 suffix
= OBJECT_SUFFIX
;
3663 suffix_length
= strlen (OBJECT_SUFFIX
);
3667 while (*p
== '.' || ISALPHA ((unsigned char)*p
))
3669 suffix_length
= p
- suffix
;
3672 /* See if we already have an association of %g/%u/%U and
3674 for (t
= temp_names
; t
; t
= t
->next
)
3675 if (t
->length
== suffix_length
3676 && strncmp (t
->suffix
, suffix
, suffix_length
) == 0
3677 && t
->unique
== (c
!= 'g'))
3680 /* Make a new association if needed. %u requires one. */
3681 if (t
== 0 || c
== 'u')
3685 t
= (struct temp_name
*) xmalloc (sizeof (struct temp_name
));
3686 t
->next
= temp_names
;
3689 t
->length
= suffix_length
;
3690 t
->suffix
= save_string (suffix
, suffix_length
);
3691 t
->unique
= (c
!= 'g');
3692 temp_filename
= make_temp_file (t
->suffix
);
3693 temp_filename_length
= strlen (temp_filename
);
3694 t
->filename
= temp_filename
;
3695 t
->filename_length
= temp_filename_length
;
3698 obstack_grow (&obstack
, t
->filename
, t
->filename_length
);
3699 delete_this_arg
= 1;
3701 obstack_grow (&obstack
, temp_filename
, temp_filename_length
);
3702 if (c
== 'u' || c
== 'U')
3708 sprintf (buff
, "%d", unique
);
3709 obstack_grow (&obstack
, buff
, strlen (buff
));
3712 delete_this_arg
= 1;
3718 obstack_grow (&obstack
, input_filename
, input_filename_length
);
3724 struct prefix_list
*pl
= include_prefixes
.plist
;
3726 if (gcc_exec_prefix
)
3728 do_spec_1 ("-iprefix", 1, NULL_PTR
);
3729 /* Make this a separate argument. */
3730 do_spec_1 (" ", 0, NULL_PTR
);
3731 do_spec_1 (gcc_exec_prefix
, 1, NULL_PTR
);
3732 do_spec_1 (" ", 0, NULL_PTR
);
3735 for (; pl
; pl
= pl
->next
)
3737 do_spec_1 ("-isystem", 1, NULL_PTR
);
3738 /* Make this a separate argument. */
3739 do_spec_1 (" ", 0, NULL_PTR
);
3740 do_spec_1 (pl
->prefix
, 1, NULL_PTR
);
3741 do_spec_1 (" ", 0, NULL_PTR
);
3748 int max
= n_infiles
;
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 (!IS_DIR_SEPARATOR (cp
[-1]))
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] && !IS_DIR_SEPARATOR (p
[-1]))
4655 #ifdef HAVE_LC_MESSAGES
4656 setlocale (LC_MESSAGES
, "");
4658 (void) bindtextdomain (PACKAGE
, localedir
);
4659 (void) textdomain (PACKAGE
);
4661 if (signal (SIGINT
, SIG_IGN
) != SIG_IGN
)
4662 signal (SIGINT
, fatal_error
);
4664 if (signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
4665 signal (SIGHUP
, fatal_error
);
4667 if (signal (SIGTERM
, SIG_IGN
) != SIG_IGN
)
4668 signal (SIGTERM
, fatal_error
);
4670 if (signal (SIGPIPE
, SIG_IGN
) != SIG_IGN
)
4671 signal (SIGPIPE
, fatal_error
);
4675 argbuf
= (char **) xmalloc (argbuf_length
* sizeof (char *));
4677 obstack_init (&obstack
);
4679 /* Build multilib_select, et. al from the separate lines that make up each
4680 multilib selection. */
4682 char **q
= multilib_raw
;
4685 obstack_init (&multilib_obstack
);
4686 while ((p
= *q
++) != (char *) 0)
4687 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4689 obstack_1grow (&multilib_obstack
, 0);
4690 multilib_select
= obstack_finish (&multilib_obstack
);
4692 q
= multilib_matches_raw
;
4693 while ((p
= *q
++) != (char *) 0)
4694 obstack_grow (&multilib_obstack
, p
, strlen (p
));
4696 obstack_1grow (&multilib_obstack
, 0);
4697 multilib_matches
= obstack_finish (&multilib_obstack
);
4701 i
< sizeof (multilib_defaults_raw
) / sizeof (multilib_defaults_raw
[0]);
4705 obstack_1grow (&multilib_obstack
, ' ');
4706 obstack_grow (&multilib_obstack
,
4707 multilib_defaults_raw
[i
],
4708 strlen (multilib_defaults_raw
[i
]));
4712 obstack_1grow (&multilib_obstack
, 0);
4713 multilib_defaults
= obstack_finish (&multilib_obstack
);
4716 /* Set up to remember the pathname of gcc and any options
4717 needed for collect. We use argv[0] instead of programname because
4718 we need the complete pathname. */
4719 obstack_init (&collect_obstack
);
4720 obstack_grow (&collect_obstack
, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4721 obstack_grow (&collect_obstack
, argv
[0], strlen (argv
[0])+1);
4722 putenv (obstack_finish (&collect_obstack
));
4724 #ifdef INIT_ENVIRONMENT
4725 /* Set up any other necessary machine specific environment variables. */
4726 putenv (INIT_ENVIRONMENT
);
4729 /* Choose directory for temp files. */
4731 #ifndef MKTEMP_EACH_FILE
4732 temp_filename
= choose_temp_base ();
4733 temp_filename_length
= strlen (temp_filename
);
4736 /* Make a table of what switches there are (switches, n_switches).
4737 Make a table of specified input files (infiles, n_infiles).
4738 Decode switches that are handled locally. */
4740 process_command (argc
, argv
);
4745 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4747 obstack_grow (&collect_obstack
, "COLLECT_GCC_OPTIONS=",
4748 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4751 for (i
= 0; (int)i
< n_switches
; i
++)
4756 obstack_grow (&collect_obstack
, " ", 1);
4759 obstack_grow (&collect_obstack
, "'-", 2);
4760 q
= switches
[i
].part1
;
4761 while ((p
= index (q
,'\'')))
4763 obstack_grow (&collect_obstack
, q
, p
-q
);
4764 obstack_grow (&collect_obstack
, "'\\''", 4);
4767 obstack_grow (&collect_obstack
, q
, strlen (q
));
4768 obstack_grow (&collect_obstack
, "'", 1);
4770 for (args
= switches
[i
].args
; args
&& *args
; args
++)
4772 obstack_grow (&collect_obstack
, " '", 2);
4774 while ((p
= index (q
,'\'')))
4776 obstack_grow (&collect_obstack
, q
, p
-q
);
4777 obstack_grow (&collect_obstack
, "'\\''", 4);
4780 obstack_grow (&collect_obstack
, q
, strlen (q
));
4781 obstack_grow (&collect_obstack
, "'", 1);
4784 obstack_grow (&collect_obstack
, "\0", 1);
4785 putenv (obstack_finish (&collect_obstack
));
4788 /* Initialize the vector of specs to just the default.
4789 This means one element containing 0s, as a terminator. */
4791 compilers
= (struct compiler
*) xmalloc (sizeof default_compilers
);
4792 bcopy ((char *) default_compilers
, (char *) compilers
,
4793 sizeof default_compilers
);
4794 n_compilers
= n_default_compilers
;
4796 /* Read specs from a file if there is one. */
4798 machine_suffix
= concat (spec_machine
, dir_separator_str
,
4799 spec_version
, dir_separator_str
, NULL_PTR
);
4800 just_machine_suffix
= concat (spec_machine
, dir_separator_str
, NULL_PTR
);
4802 specs_file
= find_a_file (&startfile_prefixes
, "specs", R_OK
);
4803 /* Read the specs file unless it is a default one. */
4804 if (specs_file
!= 0 && strcmp (specs_file
, "specs"))
4805 read_specs (specs_file
, TRUE
);
4809 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4810 for any override of as, ld and libraries. */
4811 specs_file
= (char *) alloca (strlen (standard_exec_prefix
)
4812 + strlen (just_machine_suffix
)
4813 + sizeof ("specs"));
4815 strcpy (specs_file
, standard_exec_prefix
);
4816 strcat (specs_file
, just_machine_suffix
);
4817 strcat (specs_file
, "specs");
4818 if (access (specs_file
, R_OK
) == 0)
4819 read_specs (specs_file
, TRUE
);
4821 /* Process any user specified specs in the order given on the command
4823 for (uptr
= user_specs_head
; uptr
; uptr
= uptr
->next
)
4825 char *filename
= find_a_file (&startfile_prefixes
, uptr
->filename
, R_OK
);
4826 read_specs (filename
? filename
: uptr
->filename
, FALSE
);
4829 /* If not cross-compiling, look for startfiles in the standard places. */
4830 /* The fact that these are done here, after reading the specs file,
4831 means that it cannot be found in these directories.
4832 But that's okay. It should never be there anyway. */
4833 if (*cross_compile
== '0')
4835 #ifdef MD_EXEC_PREFIX
4836 add_prefix (&exec_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4837 add_prefix (&startfile_prefixes
, md_exec_prefix
, "GCC", 0, 0, NULL_PTR
);
4840 #ifdef MD_STARTFILE_PREFIX
4841 add_prefix (&startfile_prefixes
, md_startfile_prefix
, "GCC",
4845 #ifdef MD_STARTFILE_PREFIX_1
4846 add_prefix (&startfile_prefixes
, md_startfile_prefix_1
, "GCC",
4850 /* If standard_startfile_prefix is relative, base it on
4851 standard_exec_prefix. This lets us move the installed tree
4852 as a unit. If GCC_EXEC_PREFIX is defined, base
4853 standard_startfile_prefix on that as well. */
4854 if (IS_DIR_SEPARATOR (*standard_startfile_prefix
)
4855 || *standard_startfile_prefix
== '$'
4856 #ifdef HAVE_DOS_BASED_FILESYSTEM
4857 /* Check for disk name on MS-DOS-based systems. */
4858 || (standard_startfile_prefix
[1] == ':'
4859 && (IS_DIR_SEPARATOR (standard_startfile_prefix
[2])))
4862 add_prefix (&startfile_prefixes
, standard_startfile_prefix
, "BINUTILS",
4866 if (gcc_exec_prefix
)
4867 add_prefix (&startfile_prefixes
,
4868 concat (gcc_exec_prefix
, machine_suffix
,
4869 standard_startfile_prefix
, NULL_PTR
),
4870 NULL_PTR
, 0, 0, NULL_PTR
);
4871 add_prefix (&startfile_prefixes
,
4872 concat (standard_exec_prefix
,
4874 standard_startfile_prefix
, NULL_PTR
),
4875 NULL_PTR
, 0, 0, NULL_PTR
);
4878 add_prefix (&startfile_prefixes
, standard_startfile_prefix_1
,
4879 "BINUTILS", 0, 0, NULL_PTR
);
4880 add_prefix (&startfile_prefixes
, standard_startfile_prefix_2
,
4881 "BINUTILS", 0, 0, NULL_PTR
);
4882 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4883 add_prefix (&startfile_prefixes
, "./", NULL_PTR
, 0, 1, NULL_PTR
);
4888 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix
) && gcc_exec_prefix
)
4889 add_prefix (&startfile_prefixes
,
4890 concat (gcc_exec_prefix
, machine_suffix
,
4891 standard_startfile_prefix
, NULL_PTR
),
4892 "BINUTILS", 0, 0, NULL_PTR
);
4895 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4896 if (gcc_exec_prefix
)
4898 char * temp
= (char *) xmalloc (strlen (gcc_exec_prefix
)
4899 + strlen (spec_version
)
4900 + strlen (spec_machine
) + 3);
4901 strcpy (temp
, gcc_exec_prefix
);
4902 strcat (temp
, spec_machine
);
4903 strcat (temp
, dir_separator_str
);
4904 strcat (temp
, spec_version
);
4905 strcat (temp
, dir_separator_str
);
4906 gcc_exec_prefix
= temp
;
4909 /* Now we have the specs.
4910 Set the `valid' bits for switches that match anything in any spec. */
4912 validate_all_switches ();
4914 /* Now that we have the switches and the specs, set
4915 the subdirectory based on the options. */
4916 set_multilib_dir ();
4918 /* Warn about any switches that no pass was interested in. */
4920 for (i
= 0; (int)i
< n_switches
; i
++)
4921 if (! switches
[i
].validated
)
4922 error ("unrecognized option `-%s'", switches
[i
].part1
);
4924 /* Obey some of the options. */
4926 if (print_search_dirs
)
4928 printf ("install: %s%s\n", standard_exec_prefix
, machine_suffix
);
4929 printf ("programs: %s\n", build_search_list (&exec_prefixes
, "", 0));
4930 printf ("libraries: %s\n", build_search_list (&startfile_prefixes
, "", 0));
4934 if (print_file_name
)
4936 printf ("%s\n", find_file (print_file_name
));
4940 if (print_prog_name
)
4942 char *newname
= find_a_file (&exec_prefixes
, print_prog_name
, X_OK
);
4943 printf ("%s\n", (newname
? newname
: print_prog_name
));
4947 if (print_multi_lib
)
4949 print_multilib_info ();
4953 if (print_multi_directory
)
4955 if (multilib_dir
== NULL
)
4958 printf ("%s\n", multilib_dir
);
4962 if (print_help_list
)
4968 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
4969 printf ("Please see the file BUGS (included with the sources) first.\n");
4974 /* We do not exit here. Instead we have created a fake input file
4975 called 'help-dummy' which needs to be compiled, and we pass this
4976 on the the various sub-processes, along with the --help switch. */
4983 /* compiler_version is truncated at the first space when initialized
4984 from version string, so truncate version_string at the first space
4985 before comparing. */
4986 for (n
= 0; version_string
[n
]; n
++)
4987 if (version_string
[n
] == ' ')
4990 if (! strncmp (version_string
, compiler_version
, n
)
4991 && compiler_version
[n
] == 0)
4992 notice ("gcc version %s\n", version_string
);
4994 notice ("gcc driver version %s executing gcc version %s\n",
4995 version_string
, compiler_version
);
5001 if (n_infiles
== added_libraries
)
5002 fatal ("No input files");
5004 /* Make a place to record the compiler output file names
5005 that correspond to the input files. */
5008 i
+= lang_specific_extra_outfiles
;
5009 outfiles
= (const char **) xmalloc (i
* sizeof (char *));
5010 bzero ((char *) outfiles
, i
* sizeof (char *));
5012 /* Record which files were specified explicitly as link input. */
5014 explicit_link_files
= xmalloc (n_infiles
);
5015 bzero (explicit_link_files
, n_infiles
);
5017 for (i
= 0; (int)i
< n_infiles
; i
++)
5019 register struct compiler
*cp
= 0;
5020 int this_file_error
= 0;
5022 /* Tell do_spec what to substitute for %i. */
5024 input_filename
= infiles
[i
].name
;
5025 input_filename_length
= strlen (input_filename
);
5026 input_file_number
= i
;
5028 /* Use the same thing in %o, unless cp->spec says otherwise. */
5030 outfiles
[i
] = input_filename
;
5032 /* Figure out which compiler from the file's suffix. */
5034 cp
= lookup_compiler (infiles
[i
].name
, input_filename_length
,
5035 infiles
[i
].language
);
5039 /* Ok, we found an applicable compiler. Run its spec. */
5040 /* First say how much of input_filename to substitute for %b */
5041 register const char *p
;
5044 if (cp
->spec
[0][0] == '#')
5045 error ("%s: %s compiler not installed on this system",
5046 input_filename
, &cp
->spec
[0][1]);
5048 input_basename
= input_filename
;
5049 for (p
= input_filename
; *p
; p
++)
5050 if (IS_DIR_SEPARATOR (*p
))
5051 input_basename
= p
+ 1;
5053 /* Find a suffix starting with the last period,
5054 and set basename_length to exclude that suffix. */
5055 basename_length
= strlen (input_basename
);
5056 p
= input_basename
+ basename_length
;
5057 while (p
!= input_basename
&& *p
!= '.') --p
;
5058 if (*p
== '.' && p
!= input_basename
)
5060 basename_length
= p
- input_basename
;
5061 input_suffix
= p
+ 1;
5067 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5069 len
+= strlen (cp
->spec
[j
]);
5072 char *p1
= (char *) xmalloc (len
+ 1);
5075 for (j
= 0; j
< sizeof cp
->spec
/ sizeof cp
->spec
[0]; j
++)
5078 strcpy (p1
+ len
, cp
->spec
[j
]);
5079 len
+= strlen (cp
->spec
[j
]);
5082 value
= do_spec (p1
);
5086 this_file_error
= 1;
5089 /* If this file's name does not contain a recognized suffix,
5090 record it as explicit linker input. */
5093 explicit_link_files
[i
] = 1;
5095 /* Clear the delete-on-failure queue, deleting the files in it
5096 if this compilation failed. */
5098 if (this_file_error
)
5100 delete_failure_queue ();
5103 /* If this compilation succeeded, don't delete those files later. */
5104 clear_failure_queue ();
5107 if (error_count
== 0)
5109 /* Make sure INPUT_FILE_NUMBER points to first available open
5111 input_file_number
= n_infiles
;
5112 if (lang_specific_pre_link ())
5116 /* Run ld to link all the compiler output files. */
5118 if (error_count
== 0)
5120 int tmp
= execution_count
;
5122 /* We'll use ld if we can't find collect2. */
5123 if (! strcmp (linker_name_spec
, "collect2"))
5125 char *s
= find_a_file (&exec_prefixes
, "collect2", X_OK
);
5127 linker_name_spec
= "ld";
5129 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5131 putenv_from_prefixes (&exec_prefixes
, "COMPILER_PATH=");
5132 putenv_from_prefixes (&startfile_prefixes
, "LIBRARY_PATH=");
5134 value
= do_spec (link_command_spec
);
5137 linker_was_run
= (tmp
!= execution_count
);
5140 /* Warn if a -B option was specified but the prefix was never used. */
5141 unused_prefix_warnings (&exec_prefixes
);
5142 unused_prefix_warnings (&startfile_prefixes
);
5144 /* If options said don't run linker,
5145 complain about input files to be given to the linker. */
5147 if (! linker_was_run
&& error_count
== 0)
5148 for (i
= 0; (int)i
< n_infiles
; i
++)
5149 if (explicit_link_files
[i
])
5150 error ("%s: linker input file unused since linking not done",
5153 /* Delete some or all of the temporary files we made. */
5156 delete_failure_queue ();
5157 delete_temp_files ();
5159 if (print_help_list
)
5161 printf ("\nReport bugs to egcs-bugs@egcs.cygnus.com.\n");
5162 printf ("Please see the file BUGS (included with the sources) first.\n");
5165 exit (error_count
> 0 ? (signal_count
? 2 : 1) : 0);
5170 /* Find the proper compilation spec for the file name NAME,
5171 whose length is LENGTH. LANGUAGE is the specified language,
5172 or 0 if this file is to be passed to the linker. */
5174 static struct compiler
*
5175 lookup_compiler (name
, length
, language
)
5178 const char *language
;
5180 struct compiler
*cp
;
5182 /* If this was specified by the user to be a linker input, indicate that. */
5183 if (language
!= 0 && language
[0] == '*')
5186 /* Otherwise, look for the language, if one is spec'd. */
5189 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5190 if (cp
->suffix
[0] == '@' && !strcmp (cp
->suffix
+ 1, language
))
5193 error ("language %s not recognized", language
);
5197 /* Look for a suffix. */
5198 for (cp
= compilers
+ n_compilers
- 1; cp
>= compilers
; cp
--)
5200 if (/* The suffix `-' matches only the file name `-'. */
5201 (!strcmp (cp
->suffix
, "-") && !strcmp (name
, "-"))
5202 || (strlen (cp
->suffix
) < length
5203 /* See if the suffix matches the end of NAME. */
5205 && ((!strcmp (cp
->suffix
,
5206 name
+ length
- strlen (cp
->suffix
))
5207 || !strpbrk (cp
->suffix
, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5208 && !strcasecmp (cp
->suffix
,
5209 name
+ length
- strlen (cp
->suffix
)))
5211 && !strcmp (cp
->suffix
,
5212 name
+ length
- strlen (cp
->suffix
))
5216 if (cp
->spec
[0][0] == '@')
5218 struct compiler
*new;
5220 /* An alias entry maps a suffix to a language.
5221 Search for the language; pass 0 for NAME and LENGTH
5222 to avoid infinite recursion if language not found.
5223 Construct the new compiler spec. */
5224 language
= cp
->spec
[0] + 1;
5225 new = (struct compiler
*) xmalloc (sizeof (struct compiler
));
5226 new->suffix
= cp
->suffix
;
5227 bcopy ((char *) lookup_compiler (NULL_PTR
, 0, language
)->spec
,
5228 (char *) new->spec
, sizeof new->spec
);
5232 /* A non-alias entry: return it. */
5244 register PTR value
= (PTR
) malloc (size
);
5246 fatal ("virtual memory exhausted");
5251 xrealloc (old
, size
)
5257 ptr
= (PTR
) realloc (old
, size
);
5259 ptr
= (PTR
) malloc (size
);
5261 fatal ("virtual memory exhausted");
5266 save_string (s
, len
)
5270 register char *result
= xmalloc (len
+ 1);
5272 bcopy (s
, result
, len
);
5278 pfatal_with_name (name
)
5281 perror_with_name (name
);
5282 delete_temp_files ();
5287 perror_with_name (name
)
5290 error ("%s: %s", name
, xstrerror (errno
));
5294 pfatal_pexecute (errmsg_fmt
, errmsg_arg
)
5295 const char *errmsg_fmt
;
5296 const char *errmsg_arg
;
5300 int save_errno
= errno
;
5302 /* Space for trailing '\0' is in %s. */
5303 char *msg
= xmalloc (strlen (errmsg_fmt
) + strlen (errmsg_arg
));
5304 sprintf (msg
, errmsg_fmt
, errmsg_arg
);
5310 pfatal_with_name (errmsg_fmt
);
5313 /* More 'friendly' abort that prints the line and file.
5314 config.h can #define abort fancy_abort if you like that sort of thing. */
5319 fatal ("Internal gcc abort.");
5322 /* Output an error message and exit */
5325 fatal
VPROTO((const char *msgid
, ...))
5327 #ifndef ANSI_PROTOTYPES
5332 VA_START (ap
, msgid
);
5334 #ifndef ANSI_PROTOTYPES
5335 msgid
= va_arg (ap
, const char *);
5338 fprintf (stderr
, "%s: ", programname
);
5339 vfprintf (stderr
, _(msgid
), ap
);
5341 fprintf (stderr
, "\n");
5342 delete_temp_files ();
5347 error
VPROTO((const char *msgid
, ...))
5349 #ifndef ANSI_PROTOTYPES
5354 VA_START (ap
, msgid
);
5356 #ifndef ANSI_PROTOTYPES
5357 msgid
= va_arg (ap
, const char *);
5360 fprintf (stderr
, "%s: ", programname
);
5361 vfprintf (stderr
, _(msgid
), ap
);
5364 fprintf (stderr
, "\n");
5368 notice
VPROTO((const char *msgid
, ...))
5370 #ifndef ANSI_PROTOTYPES
5375 VA_START (ap
, msgid
);
5377 #ifndef ANSI_PROTOTYPES
5378 msgid
= va_arg (ap
, const char *);
5381 vfprintf (stderr
, _(msgid
), ap
);
5387 validate_all_switches ()
5389 struct compiler
*comp
;
5390 register const char *p
;
5392 struct spec_list
*spec
;
5394 for (comp
= compilers
; comp
->spec
[0]; comp
++)
5397 for (i
= 0; i
< sizeof comp
->spec
/ sizeof comp
->spec
[0] && comp
->spec
[i
]; i
++)
5401 if (c
== '%' && *p
== '{')
5402 /* We have a switch spec. */
5403 validate_switches (p
+ 1);
5407 /* look through the linked list of specs read from the specs file */
5408 for (spec
= specs
; spec
; spec
= spec
->next
)
5410 p
= *(spec
->ptr_spec
);
5412 if (c
== '%' && *p
== '{')
5413 /* We have a switch spec. */
5414 validate_switches (p
+ 1);
5417 p
= link_command_spec
;
5419 if (c
== '%' && *p
== '{')
5420 /* We have a switch spec. */
5421 validate_switches (p
+ 1);
5424 /* Look at the switch-name that comes after START
5425 and mark as valid all supplied switches that match it. */
5428 validate_switches (start
)
5431 register const char *p
= start
;
5446 while (*p
!= ':' && *p
!= '}') p
++;
5450 else if (p
[-1] == '*')
5452 /* Mark all matching switches as valid. */
5454 for (i
= 0; i
< n_switches
; i
++)
5455 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
))
5456 switches
[i
].validated
= 1;
5460 /* Mark an exact matching switch as valid. */
5461 for (i
= 0; i
< n_switches
; i
++)
5463 if (!strncmp (switches
[i
].part1
, filter
, p
- filter
)
5464 && switches
[i
].part1
[p
- filter
] == 0)
5465 switches
[i
].validated
= 1;
5470 /* Check whether a particular argument was used. The first time we
5471 canonicalize the switches to keep only the ones we care about. */
5485 static struct mswitchstr
*mswitches
;
5486 static int n_mswitches
;
5491 struct mswitchstr
*matches
;
5495 /* Break multilib_matches into the component strings of string and replacement
5497 for (q
= multilib_matches
; *q
!= '\0'; q
++)
5501 matches
= (struct mswitchstr
*) alloca ((sizeof (struct mswitchstr
)) * cnt
);
5503 q
= multilib_matches
;
5514 matches
[i
].len
= q
- matches
[i
].str
;
5516 matches
[i
].replace
= ++q
;
5517 while (*q
!= ';' && *q
!= '\0')
5523 matches
[i
].rep_len
= q
- matches
[i
].replace
;
5531 /* Now build a list of the replacement string for switches that we care
5532 about. Make sure we allocate at least one entry. This prevents
5533 xmalloc from calling fatal, and prevents us from re-executing this
5536 = (struct mswitchstr
*) xmalloc ((sizeof (struct mswitchstr
))
5537 * (n_switches
? n_switches
: 1));
5538 for (i
= 0; i
< n_switches
; i
++)
5540 int xlen
= strlen (switches
[i
].part1
);
5541 for (j
= 0; j
< cnt
; j
++)
5542 if (xlen
== matches
[j
].len
&& ! strcmp (switches
[i
].part1
, matches
[j
].str
))
5544 mswitches
[n_mswitches
].str
= matches
[j
].replace
;
5545 mswitches
[n_mswitches
].len
= matches
[j
].rep_len
;
5546 mswitches
[n_mswitches
].replace
= (char *)0;
5547 mswitches
[n_mswitches
].rep_len
= 0;
5554 for (i
= 0; i
< n_mswitches
; i
++)
5555 if (len
== mswitches
[i
].len
&& ! strncmp (p
, mswitches
[i
].str
, len
))
5562 default_arg (p
, len
)
5568 for (start
= multilib_defaults
; *start
!= '\0'; start
= end
+1)
5570 while (*start
== ' ' || *start
== '\t')
5576 for (end
= start
+1; *end
!= ' ' && *end
!= '\t' && *end
!= '\0'; end
++)
5579 if ((end
- start
) == len
&& strncmp (p
, start
, len
) == 0)
5589 /* Work out the subdirectory to use based on the
5590 options. The format of multilib_select is a list of elements.
5591 Each element is a subdirectory name followed by a list of options
5592 followed by a semicolon. gcc will consider each line in turn. If
5593 none of the options beginning with an exclamation point are
5594 present, and all of the other options are present, that
5595 subdirectory will be used. */
5600 char *p
= multilib_select
;
5602 char *this_path
, *this_arg
;
5608 /* Ignore newlines. */
5615 /* Get the initial path. */
5623 this_path_len
= p
- this_path
;
5625 /* Check the arguments. */
5640 while (*p
!= ' ' && *p
!= ';')
5647 if (*this_arg
!= '!')
5655 /* If this is a default argument, we can just ignore it.
5656 This is true even if this_arg begins with '!'. Beginning
5657 with '!' does not mean that this argument is necessarily
5658 inappropriate for this library: it merely means that
5659 there is a more specific library which uses this
5660 argument. If this argument is a default, we need not
5661 consider that more specific library. */
5662 if (! default_arg (this_arg
, p
- this_arg
))
5664 ok
= used_arg (this_arg
, p
- this_arg
);
5675 if (this_path_len
!= 1
5676 || this_path
[0] != '.')
5678 char * new_multilib_dir
= xmalloc (this_path_len
+ 1);
5679 strncpy (new_multilib_dir
, this_path
, this_path_len
);
5680 new_multilib_dir
[this_path_len
] = '\0';
5681 multilib_dir
= new_multilib_dir
;
5690 /* Print out the multiple library subdirectory selection
5691 information. This prints out a series of lines. Each line looks
5692 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5693 required. Only the desired options are printed out, the negative
5694 matches. The options are print without a leading dash. There are
5695 no spaces to make it easy to use the information in the shell.
5696 Each subdirectory is printed only once. This assumes the ordering
5697 generated by the genmultilib script. */
5700 print_multilib_info ()
5702 char *p
= multilib_select
;
5703 char *last_path
= 0, *this_path
;
5705 int last_path_len
= 0;
5709 /* Ignore newlines. */
5716 /* Get the initial path. */
5725 /* If this is a duplicate, skip it. */
5726 skip
= (last_path
!= 0 && p
- this_path
== last_path_len
5727 && ! strncmp (last_path
, this_path
, last_path_len
));
5729 last_path
= this_path
;
5730 last_path_len
= p
- this_path
;
5732 /* If this directory requires any default arguments, we can skip
5733 it. We will already have printed a directory identical to
5734 this one which does not require that default argument. */
5752 while (*q
!= ' ' && *q
!= ';')
5760 && default_arg (arg
, q
- arg
))
5775 for (p1
= last_path
; p1
< p
; p1
++)
5794 use_arg
= *p
!= '!';
5799 while (*p
!= ' ' && *p
!= ';')
5814 /* If there are extra options, print them now */
5815 if (multilib_extra
&& *multilib_extra
)
5817 int print_at
= TRUE
;
5820 for (q
= multilib_extra
; *q
!= '\0'; q
++)