1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 compilation is specified by a string called a "spec". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
51 extern int getrusage PARAMS ((int, struct rusage *));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes;
103 /* Flag saying to print the directories gcc will search through looking for
104 programs, libraries, etc. */
106 static int print_search_dirs;
108 /* Flag saying to print the full filename of this file
109 as found through our usual search mechanism. */
111 static const char *print_file_name = NULL;
113 /* As print_file_name, but search for executable file. */
115 static const char *print_prog_name = NULL;
117 /* Flag saying to print the relative path we'd use to
118 find libgcc.a given the current compiler flags. */
120 static int print_multi_directory;
122 /* Flag saying to print the list of subdirectories and
123 compiler flags used to select them in a standard form. */
125 static int print_multi_lib;
127 /* Flag saying to print the command line options understood by gcc and its
130 static int print_help_list;
132 /* Flag indicating whether we should print the command and arguments */
134 static int verbose_flag;
136 /* Flag indicating whether we should report subprocess execution times
137 (if this is supported by the system - see pexecute.c). */
139 static int report_times;
141 /* Nonzero means write "temp" files in source directory
142 and use the source file's name in them, and don't delete them. */
144 static int save_temps_flag;
146 /* The compiler version. */
148 static const char *compiler_version;
150 /* The target version specified with -V */
152 static const char *spec_version = DEFAULT_TARGET_VERSION;
154 /* The target machine specified with -b. */
156 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
158 /* Nonzero if cross-compiling.
159 When -b is used, the value comes from the `specs' file. */
162 static const char *cross_compile = "1";
164 static const char *cross_compile = "0";
167 /* The number of errors that have occurred; the link phase will not be
168 run if this is non-zero. */
169 static int error_count = 0;
171 /* Greatest exit code of sub-processes that has been encountered up to
173 static int greatest_status = 1;
175 /* This is the obstack which we use to allocate many strings. */
177 static struct obstack obstack;
179 /* This is the obstack to build an environment variable to pass to
180 collect2 that describes all of the relevant switches of what to
181 pass the compiler in building the list of pointers to constructors
184 static struct obstack collect_obstack;
186 /* These structs are used to collect resource usage information for
188 #ifdef HAVE_GETRUSAGE
189 static struct rusage rus, prus;
192 /* Forward declaration for prototypes. */
195 static void init_spec PARAMS ((void));
197 static char **split_directories PARAMS ((const char *, int *));
198 static void free_split_directories PARAMS ((char **));
199 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
201 static void store_arg PARAMS ((const char *, int, int));
202 static char *load_specs PARAMS ((const char *));
203 static void read_specs PARAMS ((const char *, int));
204 static void set_spec PARAMS ((const char *, const char *));
205 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
206 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
207 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
208 static int access_check PARAMS ((const char *, int));
209 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
210 static void add_prefix PARAMS ((struct path_prefix *, const char *,
211 const char *, int, int, int *));
212 static void translate_options PARAMS ((int *, const char *const **));
213 static char *skip_whitespace PARAMS ((char *));
214 static void record_temp_file PARAMS ((const char *, int, int));
215 static void delete_if_ordinary PARAMS ((const char *));
216 static void delete_temp_files PARAMS ((void));
217 static void delete_failure_queue PARAMS ((void));
218 static void clear_failure_queue PARAMS ((void));
219 static int check_live_switch PARAMS ((int, int));
220 static const char *handle_braces PARAMS ((const char *));
221 static char *save_string PARAMS ((const char *, int));
222 static int do_spec_1 PARAMS ((const char *, int, const char *));
223 static const char *find_file PARAMS ((const char *));
224 static int is_directory PARAMS ((const char *, const char *, int));
225 static void validate_switches PARAMS ((const char *));
226 static void validate_all_switches PARAMS ((void));
227 static void give_switch PARAMS ((int, int, int));
228 static int used_arg PARAMS ((const char *, int));
229 static int default_arg PARAMS ((const char *, int));
230 static void set_multilib_dir PARAMS ((void));
231 static void print_multilib_info PARAMS ((void));
232 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
233 static void perror_with_name PARAMS ((const char *));
234 static void pfatal_pexecute PARAMS ((const char *, const char *))
236 static void error PARAMS ((const char *, ...))
238 static void notice PARAMS ((const char *, ...))
240 static void display_help PARAMS ((void));
241 static void add_preprocessor_option PARAMS ((const char *, int));
242 static void add_assembler_option PARAMS ((const char *, int));
243 static void add_linker_option PARAMS ((const char *, int));
244 static void process_command PARAMS ((int, const char *const *));
245 static int execute PARAMS ((void));
246 static void unused_prefix_warnings PARAMS ((struct path_prefix *));
247 static void clear_args PARAMS ((void));
248 static void fatal_error PARAMS ((int));
249 static void set_input PARAMS ((const char *));
251 /* Specs are strings containing lines, each of which (if not blank)
252 is made up of a program name, and arguments separated by spaces.
253 The program name must be exact and start from root, since no path
254 is searched and it is unreliable to depend on the current working directory.
255 Redirection of input or output is not supported; the subprograms must
256 accept filenames saying what files to read and write.
258 In addition, the specs can contain %-sequences to substitute variable text
259 or for conditional text. Here is a table of all defined %-sequences.
260 Note that spaces are not generated automatically around the results of
261 expanding these sequences; therefore, you can concatenate them together
262 or with constant text in a single argument.
264 %% substitute one % into the program name or argument.
265 %i substitute the name of the input file being processed.
266 %b substitute the basename of the input file being processed.
267 This is the substring up to (and not including) the last period
268 and not including the directory.
269 %B same as %b, but include the file suffix (text after the last period).
271 substitute a file name that has suffix SUFFIX and is chosen
272 once per compilation, and mark the argument a la %d. To reduce
273 exposure to denial-of-service attacks, the file name is now
274 chosen in a way that is hard to predict even when previously
275 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
276 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
277 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
278 had been pre-processed. Previously, %g was simply substituted
279 with a file name chosen once per compilation, without regard
280 to any appended suffix (which was therefore treated just like
281 ordinary text), making such attacks more likely to succeed.
283 like %g, but generates a new temporary file name even if %uSUFFIX
286 substitutes the last file name generated with %uSUFFIX, generating a
287 new one if there is no such last file name. In the absence of any
288 %uSUFFIX, this is just like %gSUFFIX, except they don't share
289 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
290 would involve the generation of two distinct file names, one
291 for each `%g.s' and another for each `%U.s'. Previously, %U was
292 simply substituted with a file name chosen for the previous %u,
293 without regard to any appended suffix.
295 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
296 writable, and if save-temps is off; otherwise, substitute the name
297 of a temporary file, just like %u. This temporary file is not
298 meant for communication between processes, but rather as a junk
300 %d marks the argument containing or following the %d as a
301 temporary file name, so that that file will be deleted if CC exits
302 successfully. Unlike %g, this contributes no text to the argument.
303 %w marks the argument containing or following the %w as the
304 "output file" of this compilation. This puts the argument
305 into the sequence of arguments that %o will substitute later.
307 like %{...} but mark last argument supplied within
308 as a file to be deleted on failure.
309 %o substitutes the names of all the output files, with spaces
310 automatically placed around them. You should write spaces
311 around the %o as well or the results are undefined.
312 %o is for use in the specs for running the linker.
313 Input files whose names have no recognized suffix are not compiled
314 at all, but they are included among the output files, so they will
316 %O substitutes the suffix for object files. Note that this is
317 handled specially when it immediately follows %g, %u, or %U
318 (with or without a suffix argument) because of the need for
319 those to form complete file names. The handling is such that
320 %O is treated exactly as if it had already been substituted,
321 except that %g, %u, and %U do not currently support additional
322 SUFFIX characters following %O as they would following, for
324 %p substitutes the standard macro predefinitions for the
325 current target machine. Use this when running cpp.
326 %P like %p, but puts `__' before and after the name of each macro.
327 (Except macros that already have __.)
329 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
330 %s current argument is the name of a library or startup file of some sort.
331 Search for that file in a standard list of directories
332 and substitute the full name found.
333 %eSTR Print STR as an error message. STR is terminated by a newline.
334 Use this when inconsistent options are detected.
335 %x{OPTION} Accumulate an option for %X.
336 %X Output the accumulated linker options specified by compilations.
337 %Y Output the accumulated assembler options specified by compilations.
338 %Z Output the accumulated preprocessor options specified by compilations.
339 %v1 Substitute the major version number of GCC.
340 (For version 2.5.3, this is 2.)
341 %v2 Substitute the minor version number of GCC.
342 (For version 2.5.3, this is 5.)
343 %v3 Substitute the patch level number of GCC.
344 (For version 2.5.3, this is 3.)
345 %a process ASM_SPEC as a spec.
346 This allows config.h to specify part of the spec for running as.
347 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
348 used here. This can be used to run a post-processor after the
349 assembler has done its job.
350 %D Dump out a -L option for each directory in startfile_prefixes.
351 If multilib_dir is set, extra entries are generated with it affixed.
352 %l process LINK_SPEC as a spec.
353 %L process LIB_SPEC as a spec.
354 %G process LIBGCC_SPEC as a spec.
355 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
356 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
357 %c process SIGNED_CHAR_SPEC as a spec.
358 %C process CPP_SPEC as a spec. A capital C is actually used here.
359 %1 process CC1_SPEC as a spec.
360 %2 process CC1PLUS_SPEC as a spec.
361 %| output "-" if the input for the current command is coming from a pipe.
362 %* substitute the variable part of a matched option. (See below.)
363 Note that each comma in the substituted string is replaced by
365 %{S} substitutes the -S switch, if that switch was given to CC.
366 If that switch was not specified, this substitutes nothing.
367 Here S is a metasyntactic variable.
368 %{S*} substitutes all the switches specified to CC whose names start
369 with -S. This is used for -o, -D, -I, etc; switches that take
370 arguments. CC considers `-o foo' as being one switch whose
371 name starts with `o'. %{o*} would substitute this text,
372 including the space; thus, two arguments would be generated.
373 %{^S*} likewise, but don't put a blank between a switch and any args.
374 %{S*:X} substitutes X if one or more switches whose names start with -S are
375 specified to CC. Note that the tail part of the -S option
376 (i.e. the part matched by the `*') will be substituted for each
377 occurrence of %* within X.
378 %{<S} remove all occurences of S from the command line.
379 Note - this option is position dependent. % commands in the
380 spec string before this option will see S, % commands in the
381 spec string after this option will not.
382 %{S:X} substitutes X, but only if the -S switch was given to CC.
383 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
384 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
385 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
386 %{.S:X} substitutes X, but only if processing a file with suffix S.
387 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
388 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
389 combined with ! and . as above binding stronger than the OR.
390 %(Spec) processes a specification defined in a specs file as *Spec:
391 %[Spec] as above, but put __ around -D arguments
393 The conditional text X in a %{S:X} or %{!S:X} construct may contain
394 other nested % constructs or spaces, or even newlines. They are
395 processed as usual, as described above.
397 The -O, -f, -m, and -W switches are handled specifically in these
398 constructs. If another value of -O or the negated form of a -f, -m, or
399 -W switch is found later in the command line, the earlier switch
400 value is ignored, except with {S*} where S is just one letter; this
401 passes all matching options.
403 The character | at the beginning of the predicate text is used to indicate
404 that a command should be piped to the following command, but only if -pipe
407 Note that it is built into CC which switches take arguments and which
408 do not. You might think it would be useful to generalize this to
409 allow each compiler's spec to say which switches take arguments. But
410 this cannot be done in a consistent fashion. CC cannot even decide
411 which input files have been specified without knowing which switches
412 take arguments, and it must know which input files to compile in order
413 to tell which compilers to run.
415 CC also knows implicitly that arguments starting in `-l' are to be
416 treated as compiler output files, and passed to the linker in their
417 proper position among the other output files. */
419 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
421 /* config.h can define ASM_SPEC to provide extra args to the assembler
422 or extra switch-translations. */
427 /* config.h can define ASM_FINAL_SPEC to run a post processor after
428 the assembler has run. */
429 #ifndef ASM_FINAL_SPEC
430 #define ASM_FINAL_SPEC ""
433 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
434 or extra switch-translations. */
439 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
440 or extra switch-translations. */
445 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
446 or extra switch-translations. */
448 #define CC1PLUS_SPEC ""
451 /* config.h can define LINK_SPEC to provide extra args to the linker
452 or extra switch-translations. */
457 /* config.h can define LIB_SPEC to override the default libraries. */
459 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
462 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
465 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
466 /* Have gcc do the search for libgcc.a. */
467 #define LIBGCC_SPEC "libgcc.a%s"
469 #define LIBGCC_SPEC "-lgcc"
473 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
474 #ifndef STARTFILE_SPEC
475 #define STARTFILE_SPEC \
476 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
479 /* config.h can define SWITCHES_NEED_SPACES to control which options
480 require spaces between the option and the argument. */
481 #ifndef SWITCHES_NEED_SPACES
482 #define SWITCHES_NEED_SPACES ""
485 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
487 #define ENDFILE_SPEC ""
490 /* This spec is used for telling cpp whether char is signed or not. */
491 #ifndef SIGNED_CHAR_SPEC
492 /* Use #if rather than ?:
493 because MIPS C compiler rejects like ?: in initializers. */
494 #if DEFAULT_SIGNED_CHAR
495 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
497 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
502 #define LINKER_NAME "collect2"
505 /* Here is the spec for running the linker, after compiling all files. */
507 /* -u* was put back because both BSD and SysV seem to support it. */
508 /* %{static:} simply prevents an error message if the target machine
509 doesn't handle -static. */
510 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
511 scripts which exist in user specified directories, or in standard
513 #ifndef LINK_COMMAND_SPEC
514 #define LINK_COMMAND_SPEC "\
515 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
516 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
517 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
518 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
519 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
522 #ifndef LINK_LIBGCC_SPEC
523 # ifdef LINK_LIBGCC_SPECIAL
524 /* Don't generate -L options for startfile prefix list. */
525 # define LINK_LIBGCC_SPEC ""
527 /* Do generate them. */
528 # define LINK_LIBGCC_SPEC "%D"
532 static const char *cpp_spec = CPP_SPEC;
533 static const char *cpp_predefines = CPP_PREDEFINES;
534 static const char *cc1_spec = CC1_SPEC;
535 static const char *cc1plus_spec = CC1PLUS_SPEC;
536 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
537 static const char *asm_spec = ASM_SPEC;
538 static const char *asm_final_spec = ASM_FINAL_SPEC;
539 static const char *link_spec = LINK_SPEC;
540 static const char *lib_spec = LIB_SPEC;
541 static const char *libgcc_spec = LIBGCC_SPEC;
542 static const char *endfile_spec = ENDFILE_SPEC;
543 static const char *startfile_spec = STARTFILE_SPEC;
544 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
545 static const char *linker_name_spec = LINKER_NAME;
546 static const char *link_command_spec = LINK_COMMAND_SPEC;
547 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
549 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
550 There should be no need to override these in target dependent files,
551 but we need to copy them to the specs file so that newer versions
552 of the GCC driver can correctly drive older tool chains with the
553 appropriate -B options. */
555 static const char *trad_capable_cpp =
556 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
558 static const char *cpp_options =
559 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
560 %{std*} %{nostdinc*}\
561 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
562 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
563 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
564 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
565 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
566 %{ffast-math:-D__FAST_MATH__}\
567 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
568 %{fshow-column} %{fno-show-column}\
569 %{fleading-underscore} %{fno-leading-underscore}\
570 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z %i\
571 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
573 static const char *cc1_options =
574 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
575 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
576 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
577 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
578 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
579 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
580 %{fsyntax-only:-o %j}";
582 static const char *asm_options =
583 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
585 /* Some compilers have limits on line lengths, and the multilib_select
586 and/or multilib_matches strings can be very long, so we build them at
588 static struct obstack multilib_obstack;
589 static const char *multilib_select;
590 static const char *multilib_matches;
591 static const char *multilib_defaults;
592 static const char *multilib_exclusions;
593 #include "multilib.h"
595 /* Check whether a particular argument is a default argument. */
597 #ifndef MULTILIB_DEFAULTS
598 #define MULTILIB_DEFAULTS { "" }
601 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
605 struct user_specs *next;
606 const char *filename;
609 static struct user_specs *user_specs_head, *user_specs_tail;
611 /* This defines which switch letters take arguments. */
613 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
614 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
615 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
616 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
617 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
618 || (CHAR) == 'B' || (CHAR) == 'b')
620 #ifndef SWITCH_TAKES_ARG
621 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
624 /* This defines which multi-letter switches take arguments. */
626 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
627 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
628 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
629 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
630 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
631 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
632 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
634 #ifndef WORD_SWITCH_TAKES_ARG
635 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
638 #ifdef HAVE_EXECUTABLE_SUFFIX
639 /* This defines which switches stop a full compilation. */
640 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
641 ((CHAR) == 'c' || (CHAR) == 'S')
643 #ifndef SWITCH_CURTAILS_COMPILATION
644 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
645 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
649 /* Record the mapping from file suffixes for compilation specs. */
653 const char *suffix; /* Use this compiler for input files
654 whose names end in this suffix. */
656 const char *spec; /* To use this compiler, run this spec. */
659 /* Pointer to a vector of `struct compiler' that gives the spec for
660 compiling a file, based on its suffix.
661 A file that does not end in any of these suffixes will be passed
662 unchanged to the loader and nothing else will be done to it.
664 An entry containing two 0s is used to terminate the vector.
666 If multiple entries match a file, the last matching one is used. */
668 static struct compiler *compilers;
670 /* Number of entries in `compilers', not counting the null terminator. */
672 static int n_compilers;
674 /* The default list of file name suffixes and their compilation specs. */
676 static struct compiler default_compilers[] =
678 /* Add lists of suffixes of known languages here. If those languages
679 were not present when we built the driver, we will hit these copies
680 and be given a more meaningful error than "file not used since
681 linking is not done". */
682 {".m", "#Objective-C"},
683 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
684 {".c++", "#C++"}, {".C", "#C++"},
685 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
686 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
687 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
688 {".p", "#Pascal"}, {".pas", "#Pascal"},
689 {".ch", "#Chill"}, {".chi", "#Chill"},
690 {".java", "#Java"}, {".class", "#Java"},
691 {".zip", "#Java"}, {".jar", "#Java"},
692 /* Next come the entries for C. */
696 "%{E|M|MM:cpp0 -lang-c %{ansi:-std=c89} %(cpp_options)}\
697 %{!E:%{!M:%{!MM:cc1 -lang-c %{ansi:-std=c89} %(cpp_options)\
698 %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
699 as %(asm_options) %{!pipe:%g.s} %A }}}}}"
700 #else /* ! USE_CPPLIB */
701 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
702 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
703 cc1 %{!pipe:%g.i} %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
704 as %(asm_options) %{!pipe:%g.s} %A }}}}}\n"
705 #endif /* ! USE_CPPLIB */
708 "%{!E:%e-E required when input is from standard input}\
709 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
712 "%{!E:%eCompilation of header file requested} \
713 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
714 {".i", "@cpp-output"},
717 cc1 %i %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
718 as %(asm_options) %{!pipe:%g.s} %A }}}}}"},
719 {".s", "@assembler"},
721 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
722 {".S", "@assembler-with-cpp"},
723 {"@assembler-with-cpp",
724 "%(trad_capable_cpp) -lang-asm %(cpp_options) \
725 %{!M:%{!MM:%{!E:%{!S: %{!pipe:%g.s} |\n\
726 as %(asm_options) %{!pipe:%g.s} %A }}}}"},
728 /* Mark end of table */
732 /* Number of elements in default_compilers, not counting the terminator. */
734 static int n_default_compilers
735 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
737 /* A vector of options to give to the linker.
738 These options are accumulated by %x,
739 and substituted into the linker command with %X. */
740 static int n_linker_options;
741 static char **linker_options;
743 /* A vector of options to give to the assembler.
744 These options are accumulated by -Wa,
745 and substituted into the assembler command with %Y. */
746 static int n_assembler_options;
747 static char **assembler_options;
749 /* A vector of options to give to the preprocessor.
750 These options are accumulated by -Wp,
751 and substituted into the preprocessor command with %Z. */
752 static int n_preprocessor_options;
753 static char **preprocessor_options;
755 /* Define how to map long options into short ones. */
757 /* This structure describes one mapping. */
760 /* The long option's name. */
762 /* The equivalent short option. */
763 const char *equivalent;
764 /* Argument info. A string of flag chars; NULL equals no options.
765 a => argument required.
766 o => argument optional.
767 j => join argument to equivalent, making one word.
768 * => require other text after NAME as an argument. */
769 const char *arg_info;
772 /* This is the table of mappings. Mappings are tried sequentially
773 for each option encountered; the first one that matches, wins. */
775 struct option_map option_map[] =
777 {"--all-warnings", "-Wall", 0},
778 {"--ansi", "-ansi", 0},
779 {"--assemble", "-S", 0},
780 {"--assert", "-A", "a"},
781 {"--classpath", "-fclasspath=", "aj"},
782 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
783 {"--comments", "-C", 0},
784 {"--compile", "-c", 0},
785 {"--debug", "-g", "oj"},
786 {"--define-macro", "-D", "aj"},
787 {"--dependencies", "-M", 0},
788 {"--dump", "-d", "a"},
789 {"--dumpbase", "-dumpbase", "a"},
790 {"--entry", "-e", 0},
791 {"--extra-warnings", "-W", 0},
792 {"--for-assembler", "-Wa", "a"},
793 {"--for-linker", "-Xlinker", "a"},
794 {"--force-link", "-u", "a"},
795 {"--imacros", "-imacros", "a"},
796 {"--include", "-include", "a"},
797 {"--include-barrier", "-I-", 0},
798 {"--include-directory", "-I", "aj"},
799 {"--include-directory-after", "-idirafter", "a"},
800 {"--include-prefix", "-iprefix", "a"},
801 {"--include-with-prefix", "-iwithprefix", "a"},
802 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
803 {"--include-with-prefix-after", "-iwithprefix", "a"},
804 {"--language", "-x", "a"},
805 {"--library-directory", "-L", "a"},
806 {"--machine", "-m", "aj"},
807 {"--machine-", "-m", "*j"},
808 {"--no-line-commands", "-P", 0},
809 {"--no-precompiled-includes", "-noprecomp", 0},
810 {"--no-standard-includes", "-nostdinc", 0},
811 {"--no-standard-libraries", "-nostdlib", 0},
812 {"--no-warnings", "-w", 0},
813 {"--optimize", "-O", "oj"},
814 {"--output", "-o", "a"},
815 {"--output-class-directory", "-foutput-class-dir=", "ja"},
816 {"--pedantic", "-pedantic", 0},
817 {"--pedantic-errors", "-pedantic-errors", 0},
818 {"--pipe", "-pipe", 0},
819 {"--prefix", "-B", "a"},
820 {"--preprocess", "-E", 0},
821 {"--print-search-dirs", "-print-search-dirs", 0},
822 {"--print-file-name", "-print-file-name=", "aj"},
823 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
824 {"--print-missing-file-dependencies", "-MG", 0},
825 {"--print-multi-lib", "-print-multi-lib", 0},
826 {"--print-multi-directory", "-print-multi-directory", 0},
827 {"--print-prog-name", "-print-prog-name=", "aj"},
828 {"--profile", "-p", 0},
829 {"--profile-blocks", "-a", 0},
830 {"--quiet", "-q", 0},
831 {"--save-temps", "-save-temps", 0},
832 {"--shared", "-shared", 0},
833 {"--silent", "-q", 0},
834 {"--specs", "-specs=", "aj"},
835 {"--static", "-static", 0},
836 {"--std", "-std=", "aj"},
837 {"--symbolic", "-symbolic", 0},
838 {"--target", "-b", "a"},
839 {"--time", "-time", 0},
840 {"--trace-includes", "-H", 0},
841 {"--traditional", "-traditional", 0},
842 {"--traditional-cpp", "-traditional-cpp", 0},
843 {"--trigraphs", "-trigraphs", 0},
844 {"--undefine-macro", "-U", "aj"},
845 {"--use-version", "-V", "a"},
846 {"--user-dependencies", "-MM", 0},
847 {"--verbose", "-v", 0},
848 {"--version", "-dumpversion", 0},
849 {"--warn-", "-W", "*j"},
850 {"--write-dependencies", "-MD", 0},
851 {"--write-user-dependencies", "-MMD", 0},
855 /* Translate the options described by *ARGCP and *ARGVP.
856 Make a new vector and store it back in *ARGVP,
857 and store its length in *ARGVC. */
860 translate_options (argcp, argvp)
862 const char *const **argvp;
866 const char *const *argv = *argvp;
868 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
872 newv[newindex++] = argv[i++];
876 /* Translate -- options. */
877 if (argv[i][0] == '-' && argv[i][1] == '-')
880 /* Find a mapping that applies to this option. */
881 for (j = 0; j < ARRAY_SIZE (option_map); j++)
883 size_t optlen = strlen (option_map[j].name);
884 size_t arglen = strlen (argv[i]);
885 size_t complen = arglen > optlen ? optlen : arglen;
886 const char *arginfo = option_map[j].arg_info;
891 if (!strncmp (argv[i], option_map[j].name, complen))
898 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
899 if (strlen (option_map[k].name) >= arglen
900 && !strncmp (argv[i], option_map[k].name, arglen))
902 error ("Ambiguous abbreviation %s", argv[i]);
906 if (k != ARRAY_SIZE (option_map))
912 /* If the option has an argument, accept that. */
913 if (argv[i][optlen] == '=')
914 arg = argv[i] + optlen + 1;
916 /* If this mapping requires extra text at end of name,
917 accept that as "argument". */
918 else if (index (arginfo, '*') != 0)
919 arg = argv[i] + optlen;
921 /* Otherwise, extra text at end means mismatch.
922 Try other mappings. */
927 else if (index (arginfo, '*') != 0)
929 error ("Incomplete `%s' option", option_map[j].name);
933 /* Handle arguments. */
934 if (index (arginfo, 'a') != 0)
940 error ("Missing argument to `%s' option",
948 else if (index (arginfo, '*') != 0)
950 else if (index (arginfo, 'o') == 0)
953 error ("Extraneous argument to `%s' option",
958 /* Store the translation as one argv elt or as two. */
959 if (arg != 0 && index (arginfo, 'j') != 0)
960 newv[newindex++] = concat (option_map[j].equivalent, arg,
964 newv[newindex++] = option_map[j].equivalent;
965 newv[newindex++] = arg;
968 newv[newindex++] = option_map[j].equivalent;
976 /* Handle old-fashioned options--just copy them through,
977 with their arguments. */
978 else if (argv[i][0] == '-')
980 const char *p = argv[i] + 1;
984 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
985 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
986 else if (WORD_SWITCH_TAKES_ARG (p))
987 nskip += WORD_SWITCH_TAKES_ARG (p);
988 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
991 else if (! strcmp (p, "Xlinker"))
994 /* Watch out for an option at the end of the command line that
995 is missing arguments, and avoid skipping past the end of the
997 if (nskip + i > argc)
1002 newv[newindex++] = argv[i++];
1007 /* Ordinary operands, or +e options. */
1008 newv[newindex++] = argv[i++];
1023 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1024 be considered whitespace. */
1025 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1027 else if (*p == '\n' || *p == ' ' || *p == '\t')
1031 while (*p != '\n') p++;
1041 /* Structure to keep track of the specs that have been defined so far.
1042 These are accessed using %(specname) or %[specname] in a compiler
1047 /* The following 2 fields must be first */
1048 /* to allow EXTRA_SPECS to be initialized */
1049 const char *name; /* name of the spec. */
1050 const char *ptr; /* available ptr if no static pointer */
1052 /* The following fields are not initialized */
1053 /* by EXTRA_SPECS */
1054 const char **ptr_spec; /* pointer to the spec itself. */
1055 struct spec_list *next; /* Next spec in linked list. */
1056 int name_len; /* length of the name */
1057 int alloc_p; /* whether string was allocated */
1060 #define INIT_STATIC_SPEC(NAME,PTR) \
1061 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME)-1, 0 }
1063 /* List of statically defined specs. */
1064 static struct spec_list static_specs[] =
1066 INIT_STATIC_SPEC ("asm", &asm_spec),
1067 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1068 INIT_STATIC_SPEC ("asm_options", &asm_options),
1069 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1070 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1071 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1072 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1073 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1074 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1075 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1076 INIT_STATIC_SPEC ("link", &link_spec),
1077 INIT_STATIC_SPEC ("lib", &lib_spec),
1078 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1079 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1080 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1081 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1082 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1083 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1084 INIT_STATIC_SPEC ("version", &compiler_version),
1085 INIT_STATIC_SPEC ("multilib", &multilib_select),
1086 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1087 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1088 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1089 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1090 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1091 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1094 #ifdef EXTRA_SPECS /* additional specs needed */
1095 /* Structure to keep track of just the first two args of a spec_list.
1096 That is all that the EXTRA_SPECS macro gives us. */
1103 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1104 static struct spec_list * extra_specs = (struct spec_list *) 0;
1107 /* List of dynamically allocates specs that have been defined so far. */
1109 static struct spec_list *specs = (struct spec_list *) 0;
1111 /* Initialize the specs lookup routines. */
1116 struct spec_list *next = (struct spec_list *) 0;
1117 struct spec_list *sl = (struct spec_list *) 0;
1121 return; /* Already initialized. */
1124 notice ("Using builtin specs.\n");
1127 extra_specs = (struct spec_list *)
1128 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1130 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1132 sl = &extra_specs[i];
1133 sl->name = extra_specs_1[i].name;
1134 sl->ptr = extra_specs_1[i].ptr;
1136 sl->name_len = strlen (sl->name);
1137 sl->ptr_spec = &sl->ptr;
1142 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1144 sl = &static_specs[i];
1152 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1153 removed; If the spec starts with a + then SPEC is added to the end of the
1157 set_spec (name, spec)
1161 struct spec_list *sl;
1162 const char *old_spec;
1163 int name_len = strlen (name);
1166 /* If this is the first call, initialize the statically allocated specs. */
1169 struct spec_list *next = (struct spec_list *) 0;
1170 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1172 sl = &static_specs[i];
1179 /* See if the spec already exists. */
1180 for (sl = specs; sl; sl = sl->next)
1181 if (name_len == sl->name_len && !strcmp (sl->name, name))
1186 /* Not found - make it. */
1187 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1188 sl->name = xstrdup (name);
1189 sl->name_len = name_len;
1190 sl->ptr_spec = &sl->ptr;
1192 *(sl->ptr_spec) = "";
1197 old_spec = *(sl->ptr_spec);
1198 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1199 ? concat (old_spec, spec + 1, NULL_PTR)
1204 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1207 /* Free the old spec. */
1208 if (old_spec && sl->alloc_p)
1209 free ((PTR) old_spec);
1214 /* Accumulate a command (program name and args), and run it. */
1216 /* Vector of pointers to arguments in the current line of specifications. */
1218 static const char **argbuf;
1220 /* Number of elements allocated in argbuf. */
1222 static int argbuf_length;
1224 /* Number of elements in argbuf currently in use (containing args). */
1226 static int argbuf_index;
1228 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1229 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1232 static struct temp_name {
1233 const char *suffix; /* suffix associated with the code. */
1234 int length; /* strlen (suffix). */
1235 int unique; /* Indicates whether %g or %u/%U was used. */
1236 const char *filename; /* associated filename. */
1237 int filename_length; /* strlen (filename). */
1238 struct temp_name *next;
1241 /* Number of commands executed so far. */
1243 static int execution_count;
1245 /* Number of commands that exited with a signal. */
1247 static int signal_count;
1249 /* Name with which this program was invoked. */
1251 static const char *programname;
1253 /* Structures to keep track of prefixes to try when looking for files. */
1257 char *prefix; /* String to prepend to the path. */
1258 struct prefix_list *next; /* Next in linked list. */
1259 int require_machine_suffix; /* Don't use without machine_suffix. */
1260 /* 2 means try both machine_suffix and just_machine_suffix. */
1261 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1262 int priority; /* Sort key - priority within list */
1267 struct prefix_list *plist; /* List of prefixes to try */
1268 int max_len; /* Max length of a prefix in PLIST */
1269 const char *name; /* Name of this list (used in config stuff) */
1272 /* List of prefixes to try when looking for executables. */
1274 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1276 /* List of prefixes to try when looking for startup (crt0) files. */
1278 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1280 /* List of prefixes to try when looking for include files. */
1282 static struct path_prefix include_prefixes = { 0, 0, "include" };
1284 /* Suffix to attach to directories searched for commands.
1285 This looks like `MACHINE/VERSION/'. */
1287 static const char *machine_suffix = 0;
1289 /* Suffix to attach to directories searched for commands.
1290 This is just `MACHINE/'. */
1292 static const char *just_machine_suffix = 0;
1294 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1296 static const char *gcc_exec_prefix;
1298 /* Default prefixes to attach to command names. */
1300 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1301 #undef MD_EXEC_PREFIX
1302 #undef MD_STARTFILE_PREFIX
1303 #undef MD_STARTFILE_PREFIX_1
1306 #ifndef STANDARD_EXEC_PREFIX
1307 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1308 #endif /* !defined STANDARD_EXEC_PREFIX */
1310 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1311 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1312 #ifdef MD_EXEC_PREFIX
1313 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1316 #ifndef STANDARD_STARTFILE_PREFIX
1317 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1318 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1320 #ifdef MD_STARTFILE_PREFIX
1321 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1323 #ifdef MD_STARTFILE_PREFIX_1
1324 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1326 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1327 static const char *standard_startfile_prefix_1 = "/lib/";
1328 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1330 #ifndef TOOLDIR_BASE_PREFIX
1331 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1333 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1334 static const char *tooldir_prefix;
1336 #ifndef STANDARD_BINDIR_PREFIX
1337 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1339 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1341 /* Subdirectory to use for locating libraries. Set by
1342 set_multilib_dir based on the compilation options. */
1344 static const char *multilib_dir;
1346 /* Clear out the vector of arguments (after a command is executed). */
1354 /* Add one argument to the vector at the end.
1355 This is done when a space is seen or at the end of the line.
1356 If DELETE_ALWAYS is nonzero, the arg is a filename
1357 and the file should be deleted eventually.
1358 If DELETE_FAILURE is nonzero, the arg is a filename
1359 and the file should be deleted if this compilation fails. */
1362 store_arg (arg, delete_always, delete_failure)
1364 int delete_always, delete_failure;
1366 if (argbuf_index + 1 == argbuf_length)
1368 = (const char **) xrealloc (argbuf,
1369 (argbuf_length *= 2) * sizeof (const char *));
1371 argbuf[argbuf_index++] = arg;
1372 argbuf[argbuf_index] = 0;
1374 if (delete_always || delete_failure)
1375 record_temp_file (arg, delete_always, delete_failure);
1378 /* Load specs from a file name named FILENAME, replacing occurances of
1379 various different types of line-endings, \r\n, \n\r and just \r, with
1383 load_specs (filename)
1384 const char *filename;
1388 struct stat statbuf;
1395 notice ("Reading specs from %s\n", filename);
1397 /* Open and stat the file. */
1398 desc = open (filename, O_RDONLY, 0);
1400 pfatal_with_name (filename);
1401 if (stat (filename, &statbuf) < 0)
1402 pfatal_with_name (filename);
1404 /* Read contents of file into BUFFER. */
1405 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1406 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1408 pfatal_with_name (filename);
1409 buffer[readlen] = 0;
1412 specs = xmalloc (readlen + 1);
1414 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1420 if (buffer_p > buffer && *(buffer_p-1) == '\n') /* \n\r */
1422 else if (*(buffer_p+1) == '\n') /* \r\n */
1436 /* Read compilation specs from a file named FILENAME,
1437 replacing the default ones.
1439 A suffix which starts with `*' is a definition for
1440 one of the machine-specific sub-specs. The "suffix" should be
1441 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1442 The corresponding spec is stored in asm_spec, etc.,
1443 rather than in the `compilers' vector.
1445 Anything invalid in the file is a fatal error. */
1448 read_specs (filename, main_p)
1449 const char *filename;
1455 buffer = load_specs (filename);
1457 /* Scan BUFFER for specs, putting them in the vector. */
1463 char *in, *out, *p1, *p2, *p3;
1465 /* Advance P in BUFFER to the next nonblank nocomment line. */
1466 p = skip_whitespace (p);
1470 /* Is this a special command that starts with '%'? */
1471 /* Don't allow this for the main specs file, since it would
1472 encourage people to overwrite it. */
1473 if (*p == '%' && !main_p)
1476 while (*p && *p != '\n')
1479 p++; /* Skip '\n' */
1481 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1482 && (p1[sizeof "%include" - 1] == ' '
1483 || p1[sizeof "%include" - 1] == '\t'))
1487 p1 += sizeof ("%include");
1488 while (*p1 == ' ' || *p1 == '\t')
1491 if (*p1++ != '<' || p[-2] != '>')
1492 fatal ("specs %%include syntax malformed after %ld characters",
1493 (long) (p1 - buffer + 1));
1496 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1497 read_specs (new_filename ? new_filename : p1, FALSE);
1500 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1501 && (p1[sizeof "%include_noerr" - 1] == ' '
1502 || p1[sizeof "%include_noerr" - 1] == '\t'))
1506 p1 += sizeof "%include_noerr";
1507 while (*p1 == ' ' || *p1 == '\t') p1++;
1509 if (*p1++ != '<' || p[-2] != '>')
1510 fatal ("specs %%include syntax malformed after %ld characters",
1511 (long) (p1 - buffer + 1));
1514 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1516 read_specs (new_filename, FALSE);
1517 else if (verbose_flag)
1518 notice ("Could not find specs file %s\n", p1);
1521 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1522 && (p1[sizeof "%rename" - 1] == ' '
1523 || p1[sizeof "%rename" - 1] == '\t'))
1526 struct spec_list *sl;
1528 /* Get original name */
1529 p1 += sizeof "%rename";
1530 while (*p1 == ' ' || *p1 == '\t')
1533 if (! ISALPHA ((unsigned char) *p1))
1534 fatal ("specs %%rename syntax malformed after %ld characters",
1535 (long) (p1 - buffer));
1538 while (*p2 && !ISSPACE ((unsigned char) *p2))
1541 if (*p2 != ' ' && *p2 != '\t')
1542 fatal ("specs %%rename syntax malformed after %ld characters",
1543 (long) (p2 - buffer));
1547 while (*p2 == ' ' || *p2 == '\t')
1550 if (! ISALPHA ((unsigned char) *p2))
1551 fatal ("specs %%rename syntax malformed after %ld characters",
1552 (long) (p2 - buffer));
1554 /* Get new spec name */
1556 while (*p3 && !ISSPACE ((unsigned char) *p3))
1560 fatal ("specs %%rename syntax malformed after %ld characters",
1561 (long) (p3 - buffer));
1564 for (sl = specs; sl; sl = sl->next)
1565 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1569 fatal ("specs %s spec was not found to be renamed", p1);
1571 if (strcmp (p1, p2) == 0)
1576 notice ("rename spec %s to %s\n", p1, p2);
1578 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1582 set_spec (p2, *(sl->ptr_spec));
1584 free ((PTR) *(sl->ptr_spec));
1586 *(sl->ptr_spec) = "";
1591 fatal ("specs unknown %% command after %ld characters",
1592 (long) (p1 - buffer));
1595 /* Find the colon that should end the suffix. */
1597 while (*p1 && *p1 != ':' && *p1 != '\n')
1600 /* The colon shouldn't be missing. */
1602 fatal ("specs file malformed after %ld characters",
1603 (long) (p1 - buffer));
1605 /* Skip back over trailing whitespace. */
1607 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1610 /* Copy the suffix to a string. */
1611 suffix = save_string (p, p2 - p);
1612 /* Find the next line. */
1613 p = skip_whitespace (p1 + 1);
1615 fatal ("specs file malformed after %ld characters",
1616 (long) (p - buffer));
1619 /* Find next blank line or end of string. */
1620 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1623 /* Specs end at the blank line and do not include the newline. */
1624 spec = save_string (p, p1 - p);
1627 /* Delete backslash-newline sequences from the spec. */
1632 if (in[0] == '\\' && in[1] == '\n')
1634 else if (in[0] == '#')
1635 while (*in && *in != '\n')
1643 if (suffix[0] == '*')
1645 if (! strcmp (suffix, "*link_command"))
1646 link_command_spec = spec;
1648 set_spec (suffix + 1, spec);
1652 /* Add this pair to the vector. */
1654 = ((struct compiler *)
1655 xrealloc (compilers,
1656 (n_compilers + 2) * sizeof (struct compiler)));
1658 compilers[n_compilers].suffix = suffix;
1659 compilers[n_compilers].spec = spec;
1661 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1665 link_command_spec = spec;
1668 if (link_command_spec == 0)
1669 fatal ("spec file has no spec for linking");
1672 /* Record the names of temporary files we tell compilers to write,
1673 and delete them at the end of the run. */
1675 /* This is the common prefix we use to make temp file names.
1676 It is chosen once for each run of this program.
1677 It is substituted into a spec by %g or %j.
1678 Thus, all temp file names contain this prefix.
1679 In practice, all temp file names start with this prefix.
1681 This prefix comes from the envvar TMPDIR if it is defined;
1682 otherwise, from the P_tmpdir macro if that is defined;
1683 otherwise, in /usr/tmp or /tmp;
1684 or finally the current directory if all else fails. */
1686 static const char *temp_filename;
1688 /* Length of the prefix. */
1690 static int temp_filename_length;
1692 /* Define the list of temporary files to delete. */
1697 struct temp_file *next;
1700 /* Queue of files to delete on success or failure of compilation. */
1701 static struct temp_file *always_delete_queue;
1702 /* Queue of files to delete on failure of compilation. */
1703 static struct temp_file *failure_delete_queue;
1705 /* Record FILENAME as a file to be deleted automatically.
1706 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1707 otherwise delete it in any case.
1708 FAIL_DELETE nonzero means delete it if a compilation step fails;
1709 otherwise delete it in any case. */
1712 record_temp_file (filename, always_delete, fail_delete)
1713 const char *filename;
1717 register char * const name = xstrdup (filename);
1721 register struct temp_file *temp;
1722 for (temp = always_delete_queue; temp; temp = temp->next)
1723 if (! strcmp (name, temp->name))
1726 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1727 temp->next = always_delete_queue;
1729 always_delete_queue = temp;
1736 register struct temp_file *temp;
1737 for (temp = failure_delete_queue; temp; temp = temp->next)
1738 if (! strcmp (name, temp->name))
1741 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1742 temp->next = failure_delete_queue;
1744 failure_delete_queue = temp;
1750 /* Delete all the temporary files whose names we previously recorded. */
1753 delete_if_ordinary (name)
1760 printf ("Delete %s? (y or n) ", name);
1764 while ((c = getchar ()) != '\n' && c != EOF)
1767 if (i == 'y' || i == 'Y')
1769 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1770 if (unlink (name) < 0)
1772 perror_with_name (name);
1776 delete_temp_files ()
1778 register struct temp_file *temp;
1780 for (temp = always_delete_queue; temp; temp = temp->next)
1781 delete_if_ordinary (temp->name);
1782 always_delete_queue = 0;
1785 /* Delete all the files to be deleted on error. */
1788 delete_failure_queue ()
1790 register struct temp_file *temp;
1792 for (temp = failure_delete_queue; temp; temp = temp->next)
1793 delete_if_ordinary (temp->name);
1797 clear_failure_queue ()
1799 failure_delete_queue = 0;
1802 /* Routine to add variables to the environment. We do this to pass
1803 the pathname of the gcc driver, and the directories search to the
1804 collect2 program, which is being run as ld. This way, we can be
1805 sure of executing the right compiler when collect2 wants to build
1806 constructors and destructors. Since the environment variables we
1807 use come from an obstack, we don't have to worry about allocating
1816 #ifndef VMS /* nor about VMS */
1818 extern char **environ;
1819 char **old_environ = environ;
1823 int str_len = strlen (str);
1827 while ((ch = *p++) != '\0' && ch != '=')
1833 /* Search for replacing an existing environment variable, and
1834 count the number of total environment variables. */
1835 for (envp = old_environ; *envp; envp++)
1838 if (!strncmp (str, *envp, name_len))
1845 /* Add a new environment variable */
1846 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1848 memcpy ((char *) (environ + 1), (char *) old_environ,
1849 sizeof (char *) * (num_envs+1));
1854 #endif /* HAVE_PUTENV */
1857 /* Build a list of search directories from PATHS.
1858 PREFIX is a string to prepend to the list.
1859 If CHECK_DIR_P is non-zero we ensure the directory exists.
1860 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1861 It is also used by the --print-search-dirs flag. */
1864 build_search_list (paths, prefix, check_dir_p)
1865 struct path_prefix *paths;
1869 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1871 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1872 int first_time = TRUE;
1873 struct prefix_list *pprefix;
1875 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1876 obstack_1grow (&collect_obstack, '=');
1878 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1880 int len = strlen (pprefix->prefix);
1884 || is_directory (pprefix->prefix, machine_suffix, 0)))
1887 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1890 obstack_grow (&collect_obstack, pprefix->prefix, len);
1891 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1894 if (just_machine_suffix
1895 && pprefix->require_machine_suffix == 2
1897 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1900 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1903 obstack_grow (&collect_obstack, pprefix->prefix, len);
1904 obstack_grow (&collect_obstack, just_machine_suffix,
1908 if (! pprefix->require_machine_suffix)
1911 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1914 obstack_grow (&collect_obstack, pprefix->prefix, len);
1918 obstack_1grow (&collect_obstack, '\0');
1919 return obstack_finish (&collect_obstack);
1922 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1926 putenv_from_prefixes (paths, env_var)
1927 struct path_prefix *paths;
1928 const char *env_var;
1930 putenv (build_search_list (paths, env_var, 1));
1935 /* FIXME: the location independence code for VMS is hairier than this,
1936 and hasn't been written. */
1938 /* Split a filename into component directories. */
1941 split_directories (name, ptr_num_dirs)
1950 /* Count the number of directories. Special case MSDOS disk names as part
1951 of the initial directory. */
1953 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1954 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1959 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1961 while ((ch = *p++) != '\0')
1963 if (IS_DIR_SEPARATOR (ch))
1966 while (IS_DIR_SEPARATOR (*p))
1971 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
1973 /* Now copy the directory parts. */
1976 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1977 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1979 dirs[num_dirs++] = save_string (p, 3);
1982 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1985 while ((ch = *p++) != '\0')
1987 if (IS_DIR_SEPARATOR (ch))
1989 while (IS_DIR_SEPARATOR (*p))
1992 dirs[num_dirs++] = save_string (q, p - q);
1998 dirs[num_dirs++] = save_string (q, p - 1 - q);
2000 dirs[num_dirs] = NULL_PTR;
2002 *ptr_num_dirs = num_dirs;
2007 /* Release storage held by split directories. */
2010 free_split_directories (dirs)
2015 while (dirs[i] != NULL_PTR)
2018 free ((char *)dirs);
2021 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2022 to PREFIX starting with the directory portion of PROGNAME and a relative
2023 pathname of the difference between BIN_PREFIX and PREFIX.
2025 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2026 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2027 function will return /red/green/blue/../omega.
2029 If no relative prefix can be found, return NULL. */
2032 make_relative_prefix (progname, bin_prefix, prefix)
2033 const char *progname;
2034 const char *bin_prefix;
2037 char **prog_dirs, **bin_dirs, **prefix_dirs;
2038 int prog_num, bin_num, prefix_num, std_loc_p;
2041 prog_dirs = split_directories (progname, &prog_num);
2042 bin_dirs = split_directories (bin_prefix, &bin_num);
2044 /* If there is no full pathname, try to find the program by checking in each
2045 of the directories specified in the PATH environment variable. */
2050 GET_ENV_PATH_LIST (temp, "PATH");
2053 char *startp, *endp;
2054 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2056 startp = endp = temp;
2059 if (*endp == PATH_SEPARATOR || *endp == 0)
2064 nstore[1] = DIR_SEPARATOR;
2069 strncpy (nstore, startp, endp-startp);
2070 if (! IS_DIR_SEPARATOR (endp[-1]))
2072 nstore[endp-startp] = DIR_SEPARATOR;
2073 nstore[endp-startp+1] = 0;
2076 nstore[endp-startp] = 0;
2078 strcat (nstore, progname);
2079 if (! access (nstore, X_OK)
2080 #ifdef HAVE_EXECUTABLE_SUFFIX
2081 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2085 free_split_directories (prog_dirs);
2087 prog_dirs = split_directories (progname, &prog_num);
2093 endp = startp = endp + 1;
2101 /* Remove the program name from comparison of directory names. */
2104 /* Determine if the compiler is installed in the standard location, and if
2105 so, we don't need to specify relative directories. Also, if argv[0]
2106 doesn't contain any directory specifiers, there is not much we can do. */
2108 if (prog_num == bin_num)
2110 for (i = 0; i < bin_num; i++)
2112 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2116 if (prog_num <= 0 || i == bin_num)
2119 free_split_directories (prog_dirs);
2120 free_split_directories (bin_dirs);
2121 prog_dirs = bin_dirs = (char **) 0;
2126 prefix_dirs = split_directories (prefix, &prefix_num);
2128 /* Find how many directories are in common between bin_prefix & prefix. */
2129 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2130 for (common = 0; common < n; common++)
2132 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2136 /* If there are no common directories, there can be no relative prefix. */
2139 free_split_directories (prog_dirs);
2140 free_split_directories (bin_dirs);
2141 free_split_directories (prefix_dirs);
2145 /* Build up the pathnames in argv[0]. */
2146 for (i = 0; i < prog_num; i++)
2147 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2149 /* Now build up the ..'s. */
2150 for (i = common; i < n; i++)
2152 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP)-1);
2153 obstack_1grow (&obstack, DIR_SEPARATOR);
2156 /* Put in directories to move over to prefix. */
2157 for (i = common; i < prefix_num; i++)
2158 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2160 free_split_directories (prog_dirs);
2161 free_split_directories (bin_dirs);
2162 free_split_directories (prefix_dirs);
2164 obstack_1grow (&obstack, '\0');
2165 return obstack_finish (&obstack);
2169 /* Check whether NAME can be accessed in MODE. This is like access,
2170 except that it never considers directories to be executable. */
2173 access_check (name, mode)
2181 if (stat (name, &st) < 0
2182 || S_ISDIR (st.st_mode))
2186 return access (name, mode);
2189 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2190 access to check permissions.
2191 Return 0 if not found, otherwise return its name, allocated with malloc. */
2194 find_a_file (pprefix, name, mode)
2195 struct path_prefix *pprefix;
2200 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2201 struct prefix_list *pl;
2202 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2204 #ifdef DEFAULT_ASSEMBLER
2205 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2206 return xstrdup (DEFAULT_ASSEMBLER);
2209 #ifdef DEFAULT_LINKER
2210 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2211 return xstrdup (DEFAULT_LINKER);
2215 len += strlen (machine_suffix);
2217 temp = xmalloc (len);
2219 /* Determine the filename to execute (special case for absolute paths). */
2221 if (IS_DIR_SEPARATOR (*name)
2222 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2223 /* Check for disk name on MS-DOS-based systems. */
2224 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2228 if (access (name, mode) == 0)
2230 strcpy (temp, name);
2235 for (pl = pprefix->plist; pl; pl = pl->next)
2239 /* Some systems have a suffix for executable files.
2240 So try appending that first. */
2241 if (file_suffix[0] != 0)
2243 strcpy (temp, pl->prefix);
2244 strcat (temp, machine_suffix);
2245 strcat (temp, name);
2246 strcat (temp, file_suffix);
2247 if (access_check (temp, mode) == 0)
2249 if (pl->used_flag_ptr != 0)
2250 *pl->used_flag_ptr = 1;
2255 /* Now try just the name. */
2256 strcpy (temp, pl->prefix);
2257 strcat (temp, machine_suffix);
2258 strcat (temp, name);
2259 if (access_check (temp, mode) == 0)
2261 if (pl->used_flag_ptr != 0)
2262 *pl->used_flag_ptr = 1;
2267 /* Certain prefixes are tried with just the machine type,
2268 not the version. This is used for finding as, ld, etc. */
2269 if (just_machine_suffix && pl->require_machine_suffix == 2)
2271 /* Some systems have a suffix for executable files.
2272 So try appending that first. */
2273 if (file_suffix[0] != 0)
2275 strcpy (temp, pl->prefix);
2276 strcat (temp, just_machine_suffix);
2277 strcat (temp, name);
2278 strcat (temp, file_suffix);
2279 if (access_check (temp, mode) == 0)
2281 if (pl->used_flag_ptr != 0)
2282 *pl->used_flag_ptr = 1;
2287 strcpy (temp, pl->prefix);
2288 strcat (temp, just_machine_suffix);
2289 strcat (temp, name);
2290 if (access_check (temp, mode) == 0)
2292 if (pl->used_flag_ptr != 0)
2293 *pl->used_flag_ptr = 1;
2298 /* Certain prefixes can't be used without the machine suffix
2299 when the machine or version is explicitly specified. */
2300 if (! pl->require_machine_suffix)
2302 /* Some systems have a suffix for executable files.
2303 So try appending that first. */
2304 if (file_suffix[0] != 0)
2306 strcpy (temp, pl->prefix);
2307 strcat (temp, name);
2308 strcat (temp, file_suffix);
2309 if (access_check (temp, mode) == 0)
2311 if (pl->used_flag_ptr != 0)
2312 *pl->used_flag_ptr = 1;
2317 strcpy (temp, pl->prefix);
2318 strcat (temp, name);
2319 if (access_check (temp, mode) == 0)
2321 if (pl->used_flag_ptr != 0)
2322 *pl->used_flag_ptr = 1;
2332 /* Ranking of prefixes in the sort list. -B prefixes are put before
2335 enum path_prefix_priority
2337 PREFIX_PRIORITY_B_OPT,
2338 PREFIX_PRIORITY_LAST
2341 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2342 order according to PRIORITY. Within each PRIORITY, new entries are
2345 If WARN is nonzero, we will warn if no file is found
2346 through this prefix. WARN should point to an int
2347 which will be set to 1 if this entry is used.
2349 COMPONENT is the value to be passed to update_path.
2351 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2352 the complete value of machine_suffix.
2353 2 means try both machine_suffix and just_machine_suffix. */
2356 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2357 struct path_prefix *pprefix;
2359 const char *component;
2360 /* enum prefix_priority */ int priority;
2361 int require_machine_suffix;
2364 struct prefix_list *pl, **prev;
2367 for (prev = &pprefix->plist;
2368 (*prev) != NULL && (*prev)->priority <= priority;
2369 prev = &(*prev)->next)
2372 /* Keep track of the longest prefix */
2374 prefix = update_path (prefix, component);
2375 len = strlen (prefix);
2376 if (len > pprefix->max_len)
2377 pprefix->max_len = len;
2379 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2380 pl->prefix = save_string (prefix, len);
2381 pl->require_machine_suffix = require_machine_suffix;
2382 pl->used_flag_ptr = warn;
2383 pl->priority = priority;
2387 /* Insert after PREV */
2392 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2395 unused_prefix_warnings (pprefix)
2396 struct path_prefix *pprefix;
2398 struct prefix_list *pl = pprefix->plist;
2402 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2404 if (pl->require_machine_suffix && machine_suffix)
2405 error ("file path prefix `%s%s' never used", pl->prefix,
2408 error ("file path prefix `%s' never used", pl->prefix);
2410 /* Prevent duplicate warnings. */
2411 *pl->used_flag_ptr = 1;
2418 /* Execute the command specified by the arguments on the current line of spec.
2419 When using pipes, this includes several piped-together commands
2420 with `|' between them.
2422 Return 0 if successful, -1 if failed. */
2428 int n_commands; /* # of command. */
2432 const char *prog; /* program name. */
2433 const char **argv; /* vector of args. */
2434 int pid; /* pid of process for this command. */
2437 struct command *commands; /* each command buffer with above info. */
2439 /* Count # of piped commands. */
2440 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2441 if (strcmp (argbuf[i], "|") == 0)
2444 /* Get storage for each command. */
2446 = (struct command *) alloca (n_commands * sizeof (struct command));
2448 /* Split argbuf into its separate piped processes,
2449 and record info about each one.
2450 Also search for the programs that are to be run. */
2452 commands[0].prog = argbuf[0]; /* first command. */
2453 commands[0].argv = &argbuf[0];
2454 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2457 commands[0].argv[0] = string;
2459 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2460 if (strcmp (argbuf[i], "|") == 0)
2461 { /* each command. */
2462 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2463 fatal ("-pipe not supported");
2465 argbuf[i] = 0; /* termination of command args. */
2466 commands[n_commands].prog = argbuf[i + 1];
2467 commands[n_commands].argv = &argbuf[i + 1];
2468 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2470 commands[n_commands].argv[0] = string;
2474 argbuf[argbuf_index] = 0;
2476 /* If -v, print what we are about to do, and maybe query. */
2480 /* For help listings, put a blank line between sub-processes. */
2481 if (print_help_list)
2482 fputc ('\n', stderr);
2484 /* Print each piped command as a separate line. */
2485 for (i = 0; i < n_commands ; i++)
2487 const char *const *j;
2489 for (j = commands[i].argv; *j; j++)
2490 fprintf (stderr, " %s", *j);
2492 /* Print a pipe symbol after all but the last command. */
2493 if (i + 1 != n_commands)
2494 fprintf (stderr, " |");
2495 fprintf (stderr, "\n");
2499 notice ("\nGo ahead? (y or n) ");
2503 while (getchar () != '\n')
2506 if (i != 'y' && i != 'Y')
2511 /* Run each piped subprocess. */
2513 for (i = 0; i < n_commands; i++)
2515 char *errmsg_fmt, *errmsg_arg;
2516 const char *string = commands[i].argv[0];
2518 /* For some bizarre reason, the second argument of execvp() is
2519 char *const *, not const char *const *. */
2520 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2521 programname, temp_filename,
2522 &errmsg_fmt, &errmsg_arg,
2523 ((i == 0 ? PEXECUTE_FIRST : 0)
2524 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2525 | (string == commands[i].prog
2526 ? PEXECUTE_SEARCH : 0)
2527 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2529 if (commands[i].pid == -1)
2530 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2532 if (string != commands[i].prog)
2533 free ((PTR) string);
2538 /* Wait for all the subprocesses to finish.
2539 We don't care what order they finish in;
2540 we know that N_COMMANDS waits will get them all.
2541 Ignore subprocesses that we don't know about,
2542 since they can be spawned by the process that exec'ed us. */
2546 #ifdef HAVE_GETRUSAGE
2548 double ut = 0.0, st = 0.0;
2551 for (i = 0; i < n_commands; )
2557 pid = pwait (commands[i].pid, &status, 0);
2561 #ifdef HAVE_GETRUSAGE
2564 /* getrusage returns the total resource usage of all children
2565 up to now. Copy the previous values into prus, get the
2566 current statistics, then take the difference. */
2569 getrusage (RUSAGE_CHILDREN, &rus);
2570 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2571 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2572 ut = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2574 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2575 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2576 st = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2580 for (j = 0; j < n_commands; j++)
2581 if (commands[j].pid == pid)
2584 if (WIFSIGNALED (status))
2587 /* SIGPIPE is a special case. It happens in -pipe mode
2588 when the compiler dies before the preprocessor is
2589 done, or the assembler dies before the compiler is
2590 done. There's generally been an error already, and
2591 this is just fallout. So don't generate another error
2592 unless we would otherwise have succeeded. */
2593 if (WTERMSIG (status) == SIGPIPE
2594 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2599 Internal error: %s (program %s)\n\
2600 Please submit a full bug report.\n\
2601 See %s for instructions.",
2602 strsignal (WTERMSIG (status)), commands[j].prog,
2607 else if (WIFEXITED (status)
2608 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2610 if (WEXITSTATUS (status) > greatest_status)
2611 greatest_status = WEXITSTATUS (status);
2614 #ifdef HAVE_GETRUSAGE
2615 if (report_times && ut + st != 0)
2616 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2625 /* Find all the switches given to us
2626 and make a vector describing them.
2627 The elements of the vector are strings, one per switch given.
2628 If a switch uses following arguments, then the `part1' field
2629 is the switch itself and the `args' field
2630 is a null-terminated vector containing the following arguments.
2631 The `live_cond' field is:
2633 1 if the switch is true in a conditional spec,
2634 -1 if false (overridden by a later switch)
2635 -2 if this switch should be ignored (used in %{<S})
2636 The `validated' field is nonzero if any spec has looked at this switch;
2637 if it remains zero at the end of the run, it must be meaningless. */
2640 #define SWITCH_FALSE -1
2641 #define SWITCH_IGNORE -2
2642 #define SWITCH_LIVE 1
2652 static struct switchstr *switches;
2654 static int n_switches;
2659 const char *language;
2662 /* Also a vector of input files specified. */
2664 static struct infile *infiles;
2666 static int n_infiles;
2668 /* This counts the number of libraries added by lang_specific_driver, so that
2669 we can tell if there were any user supplied any files or libraries. */
2671 static int added_libraries;
2673 /* And a vector of corresponding output files is made up later. */
2675 static const char **outfiles;
2677 /* Used to track if none of the -B paths are used. */
2680 /* Used to track if standard path isn't used and -b or -V is specified. */
2681 static int warn_std;
2683 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2684 static int *warn_std_ptr = 0;
2686 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2688 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2689 is true if we should look for an executable suffix as well. */
2692 convert_filename (name, do_exe)
2702 len = strlen (name);
2704 #ifdef HAVE_OBJECT_SUFFIX
2705 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2707 && name[len - 2] == '.'
2708 && name[len - 1] == 'o')
2710 obstack_grow (&obstack, name, len - 2);
2711 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2712 name = obstack_finish (&obstack);
2716 #ifdef HAVE_EXECUTABLE_SUFFIX
2717 /* If there is no filetype, make it the executable suffix (which includes
2718 the "."). But don't get confused if we have just "-o". */
2719 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2722 for (i = len - 1; i >= 0; i--)
2723 if (IS_DIR_SEPARATOR (name[i]))
2726 for (i++; i < len; i++)
2730 obstack_grow (&obstack, name, len);
2731 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2732 name = obstack_finish (&obstack);
2739 /* Display the command line switches accepted by gcc. */
2743 printf (_("Usage: %s [options] file...\n"), programname);
2744 fputs (_("Options:\n"), stdout);
2746 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2747 fputs (_(" --help Display this information\n"), stdout);
2749 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2750 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2751 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2752 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2753 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2754 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2755 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2756 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2757 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2759 -print-multi-lib Display the mapping between command line options and\n\
2760 multiple library search directories\n"), stdout);
2761 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2762 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2763 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2764 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2765 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2766 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2767 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2768 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2769 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2770 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2771 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2772 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2773 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2774 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2775 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2776 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2777 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2779 -x <language> Specify the language of the following input files\n\
2780 Permissable languages include: c c++ assembler none\n\
2781 'none' means revert to the default behaviour of\n\
2782 guessing the language based on the file's extension\n\
2786 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2787 the various sub-processes invoked by %s. In order to pass other options\n\
2788 on to these processes the -W<letter> options must be used.\n\
2791 /* The rest of the options are displayed by invocations of the various
2796 add_preprocessor_option (option, len)
2797 const char * option;
2800 n_preprocessor_options++;
2802 if (! preprocessor_options)
2803 preprocessor_options
2804 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2806 preprocessor_options
2807 = (char **) xrealloc (preprocessor_options,
2808 n_preprocessor_options * sizeof (char *));
2810 preprocessor_options [n_preprocessor_options - 1] =
2811 save_string (option, len);
2815 add_assembler_option (option, len)
2816 const char * option;
2819 n_assembler_options++;
2821 if (! assembler_options)
2823 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2826 = (char **) xrealloc (assembler_options,
2827 n_assembler_options * sizeof (char *));
2829 assembler_options [n_assembler_options - 1] = save_string (option, len);
2833 add_linker_option (option, len)
2834 const char * option;
2839 if (! linker_options)
2841 = (char **) xmalloc (n_linker_options * sizeof (char *));
2844 = (char **) xrealloc (linker_options,
2845 n_linker_options * sizeof (char *));
2847 linker_options [n_linker_options - 1] = save_string (option, len);
2850 /* Create the vector `switches' and its contents.
2851 Store its length in `n_switches'. */
2854 process_command (argc, argv)
2856 const char *const *argv;
2861 const char *spec_lang = 0;
2862 int last_language_n_infiles;
2865 int lang_n_infiles = 0;
2867 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2871 added_libraries = 0;
2873 /* Figure compiler version from version string. */
2875 compiler_version = temp1 = xstrdup (version_string);
2877 for (; *temp1; ++temp1)
2886 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2887 see if we can create it from the pathname specified in argv[0]. */
2890 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2891 if (!gcc_exec_prefix)
2893 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2894 standard_exec_prefix);
2895 if (gcc_exec_prefix)
2896 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2900 if (gcc_exec_prefix)
2902 int len = strlen (gcc_exec_prefix);
2903 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2904 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2906 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2907 if (IS_DIR_SEPARATOR (*temp)
2908 && strncmp (temp+1, "lib", 3) == 0
2909 && IS_DIR_SEPARATOR (temp[4])
2910 && strncmp (temp+5, "gcc-lib", 7) == 0)
2911 len -= sizeof ("/lib/gcc-lib/") - 1;
2914 set_std_prefix (gcc_exec_prefix, len);
2915 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2916 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2917 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2918 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2921 /* COMPILER_PATH and LIBRARY_PATH have values
2922 that are lists of directory names with colons. */
2924 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2927 const char *startp, *endp;
2928 char *nstore = (char *) alloca (strlen (temp) + 3);
2930 startp = endp = temp;
2933 if (*endp == PATH_SEPARATOR || *endp == 0)
2935 strncpy (nstore, startp, endp-startp);
2937 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2938 else if (!IS_DIR_SEPARATOR (endp[-1]))
2940 nstore[endp-startp] = DIR_SEPARATOR;
2941 nstore[endp-startp+1] = 0;
2944 nstore[endp-startp] = 0;
2945 add_prefix (&exec_prefixes, nstore, 0,
2946 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2947 add_prefix (&include_prefixes,
2948 concat (nstore, "include", NULL_PTR),
2949 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2952 endp = startp = endp + 1;
2959 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2960 if (temp && *cross_compile == '0')
2962 const char *startp, *endp;
2963 char *nstore = (char *) alloca (strlen (temp) + 3);
2965 startp = endp = temp;
2968 if (*endp == PATH_SEPARATOR || *endp == 0)
2970 strncpy (nstore, startp, endp-startp);
2972 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2973 else if (!IS_DIR_SEPARATOR (endp[-1]))
2975 nstore[endp-startp] = DIR_SEPARATOR;
2976 nstore[endp-startp+1] = 0;
2979 nstore[endp-startp] = 0;
2980 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2981 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2984 endp = startp = endp + 1;
2991 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2992 GET_ENV_PATH_LIST (temp, "LPATH");
2993 if (temp && *cross_compile == '0')
2995 const char *startp, *endp;
2996 char *nstore = (char *) alloca (strlen (temp) + 3);
2998 startp = endp = temp;
3001 if (*endp == PATH_SEPARATOR || *endp == 0)
3003 strncpy (nstore, startp, endp-startp);
3005 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3006 else if (!IS_DIR_SEPARATOR (endp[-1]))
3008 nstore[endp-startp] = DIR_SEPARATOR;
3009 nstore[endp-startp+1] = 0;
3012 nstore[endp-startp] = 0;
3013 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3014 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3017 endp = startp = endp + 1;
3024 /* Convert new-style -- options to old-style. */
3025 translate_options (&argc, &argv);
3027 /* Do language-specific adjustment/addition of flags. */
3028 lang_specific_driver (&argc, &argv, &added_libraries);
3030 /* Scan argv twice. Here, the first time, just count how many switches
3031 there will be in their vector, and how many input files in theirs.
3032 Here we also parse the switches that cc itself uses (e.g. -v). */
3034 for (i = 1; i < argc; i++)
3036 if (! strcmp (argv[i], "-dumpspecs"))
3038 struct spec_list *sl;
3040 for (sl = specs; sl; sl = sl->next)
3041 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3042 if (link_command_spec)
3043 printf ("*link_command:\n%s\n\n", link_command_spec);
3046 else if (! strcmp (argv[i], "-dumpversion"))
3048 printf ("%s\n", spec_version);
3051 else if (! strcmp (argv[i], "-dumpmachine"))
3053 printf ("%s\n", spec_machine);
3056 else if (strcmp (argv[i], "-fhelp") == 0)
3058 /* translate_options () has turned --help into -fhelp. */
3059 print_help_list = 1;
3061 /* We will be passing a dummy file on to the sub-processes. */
3065 add_preprocessor_option ("--help", 6);
3066 add_assembler_option ("--help", 6);
3067 add_linker_option ("--help", 6);
3069 else if (! strcmp (argv[i], "-pass-exit-codes"))
3071 pass_exit_codes = 1;
3074 else if (! strcmp (argv[i], "-print-search-dirs"))
3075 print_search_dirs = 1;
3076 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3077 print_file_name = "libgcc.a";
3078 else if (! strncmp (argv[i], "-print-file-name=", 17))
3079 print_file_name = argv[i] + 17;
3080 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3081 print_prog_name = argv[i] + 17;
3082 else if (! strcmp (argv[i], "-print-multi-lib"))
3083 print_multi_lib = 1;
3084 else if (! strcmp (argv[i], "-print-multi-directory"))
3085 print_multi_directory = 1;
3086 else if (! strncmp (argv[i], "-Wa,", 4))
3089 /* Pass the rest of this option to the assembler. */
3091 /* Split the argument at commas. */
3093 for (j = 4; argv[i][j]; j++)
3094 if (argv[i][j] == ',')
3096 add_assembler_option (argv[i] + prev, j - prev);
3100 /* Record the part after the last comma. */
3101 add_assembler_option (argv[i] + prev, j - prev);
3103 else if (! strncmp (argv[i], "-Wp,", 4))
3106 /* Pass the rest of this option to the preprocessor. */
3108 /* Split the argument at commas. */
3110 for (j = 4; argv[i][j]; j++)
3111 if (argv[i][j] == ',')
3113 add_preprocessor_option (argv[i] + prev, j - prev);
3117 /* Record the part after the last comma. */
3118 add_preprocessor_option (argv[i] + prev, j - prev);
3120 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3121 /* The +e options to the C++ front-end. */
3123 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3126 /* Split the argument at commas. */
3127 for (j = 3; argv[i][j]; j++)
3128 n_infiles += (argv[i][j] == ',');
3130 else if (strcmp (argv[i], "-Xlinker") == 0)
3133 fatal ("argument to `-Xlinker' is missing");
3138 else if (strncmp (argv[i], "-l", 2) == 0)
3140 else if (strcmp (argv[i], "-save-temps") == 0)
3142 save_temps_flag = 1;
3145 else if (strcmp (argv[i], "-specs") == 0)
3147 struct user_specs *user = (struct user_specs *)
3148 xmalloc (sizeof (struct user_specs));
3150 fatal ("argument to `-specs' is missing");
3152 user->next = (struct user_specs *) 0;
3153 user->filename = argv[i];
3154 if (user_specs_tail)
3155 user_specs_tail->next = user;
3157 user_specs_head = user;
3158 user_specs_tail = user;
3160 else if (strncmp (argv[i], "-specs=", 7) == 0)
3162 struct user_specs *user = (struct user_specs *)
3163 xmalloc (sizeof (struct user_specs));
3164 if (strlen (argv[i]) == 7)
3165 fatal ("argument to `-specs=' is missing");
3167 user->next = (struct user_specs *) 0;
3168 user->filename = argv[i]+7;
3169 if (user_specs_tail)
3170 user_specs_tail->next = user;
3172 user_specs_head = user;
3173 user_specs_tail = user;
3175 else if (strcmp (argv[i], "-time") == 0)
3177 else if (argv[i][0] == '-' && argv[i][1] != 0)
3179 register const char *p = &argv[i][1];
3180 register int c = *p;
3186 if (p[1] == 0 && i + 1 == argc)
3187 fatal ("argument to `-b' is missing");
3189 spec_machine = argv[++i];
3191 spec_machine = p + 1;
3193 warn_std_ptr = &warn_std;
3199 if (p[1] == 0 && i + 1 == argc)
3200 fatal ("argument to `-B' is missing");
3206 /* As a kludge, if the arg is "[foo/]stageN/", just
3207 add "[foo/]include" to the include prefix. */
3208 int len = strlen (value);
3211 && (IS_DIR_SEPARATOR (value[len - 8]))))
3212 && strncmp (value + len - 7, "stage", 5) == 0
3213 && ISDIGIT (value[len - 2])
3214 && (IS_DIR_SEPARATOR (value[len - 1])))
3217 add_prefix (&include_prefixes, "include", NULL_PTR,
3218 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3221 char *string = xmalloc (len + 1);
3222 strncpy (string, value, len-7);
3223 strcpy (string+len-7, "include");
3224 add_prefix (&include_prefixes, string, NULL_PTR,
3225 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3229 add_prefix (&exec_prefixes, value, NULL_PTR,
3230 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3231 add_prefix (&startfile_prefixes, value, NULL_PTR,
3232 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3233 add_prefix (&include_prefixes, concat (value, "include",
3236 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3241 case 'v': /* Print our subcommands and print versions. */
3243 /* If they do anything other than exactly `-v', don't set
3244 verbose_flag; rather, continue on to give the error. */
3252 if (p[1] == 0 && i + 1 == argc)
3253 fatal ("argument to `-V' is missing");
3255 spec_version = argv[++i];
3257 spec_version = p + 1;
3258 compiler_version = spec_version;
3259 warn_std_ptr = &warn_std;
3261 /* Validate the version number. Use the same checks
3262 done when inserting it into a spec.
3264 The format of the version string is
3265 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3267 const char *v = compiler_version;
3269 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3270 while (! ISDIGIT (*v))
3273 if (v > compiler_version && v[-1] != '-')
3274 fatal ("invalid version number format");
3276 /* Set V after the first period. */
3277 while (ISDIGIT (*v))
3281 fatal ("invalid version number format");
3284 while (ISDIGIT (*v))
3287 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3288 fatal ("invalid version number format");
3304 #if defined(HAVE_EXECUTABLE_SUFFIX)
3309 /* Forward scan, just in case -S or -c is specified
3316 if (argv[j][0] == '-')
3318 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3324 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3325 j += skip - (argv[j][2] != 0);
3326 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3333 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3335 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3337 argv[i] = convert_filename (argv[i], ! have_c);
3345 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3346 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3347 else if (WORD_SWITCH_TAKES_ARG (p))
3348 i += WORD_SWITCH_TAKES_ARG (p);
3358 if (have_c && have_o && lang_n_infiles > 1)
3359 fatal ("cannot specify -o with -c or -S and multiple compilations");
3361 /* Set up the search paths before we go looking for config files. */
3363 /* These come before the md prefixes so that we will find gcc's subcommands
3364 (such as cpp) rather than those of the host system. */
3365 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3366 as well as trying the machine and the version. */
3368 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3369 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3370 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3371 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3372 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3373 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3376 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3377 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3378 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3379 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3381 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3382 dir_separator_str, NULL_PTR);
3384 /* If tooldir is relative, base it on exec_prefixes. A relative
3385 tooldir lets us move the installed tree as a unit.
3387 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3388 directories, so that we can search both the user specified directory
3389 and the standard place. */
3391 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3393 if (gcc_exec_prefix)
3395 char *gcc_exec_tooldir_prefix
3396 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3397 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3399 add_prefix (&exec_prefixes,
3400 concat (gcc_exec_tooldir_prefix, "bin",
3401 dir_separator_str, NULL_PTR),
3402 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3403 add_prefix (&startfile_prefixes,
3404 concat (gcc_exec_tooldir_prefix, "lib",
3405 dir_separator_str, NULL_PTR),
3406 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3409 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3410 dir_separator_str, spec_version,
3411 dir_separator_str, tooldir_prefix, NULL_PTR);
3414 add_prefix (&exec_prefixes,
3415 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3416 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3417 add_prefix (&startfile_prefixes,
3418 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3419 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3421 /* More prefixes are enabled in main, after we read the specs file
3422 and determine whether this is cross-compilation or not. */
3424 /* Then create the space for the vectors and scan again. */
3426 switches = ((struct switchstr *)
3427 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3428 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3431 last_language_n_infiles = -1;
3433 /* This, time, copy the text of each switch and store a pointer
3434 to the copy in the vector of switches.
3435 Store all the infiles in their vector. */
3437 for (i = 1; i < argc; i++)
3439 /* Just skip the switches that were handled by the preceding loop. */
3440 if (! strncmp (argv[i], "-Wa,", 4))
3442 else if (! strncmp (argv[i], "-Wp,", 4))
3444 else if (! strcmp (argv[i], "-pass-exit-codes"))
3446 else if (! strcmp (argv[i], "-print-search-dirs"))
3448 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3450 else if (! strncmp (argv[i], "-print-file-name=", 17))
3452 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3454 else if (! strcmp (argv[i], "-print-multi-lib"))
3456 else if (! strcmp (argv[i], "-print-multi-directory"))
3458 else if (strcmp (argv[i], "-fhelp") == 0)
3462 /* Create a dummy input file, so that we can pass --help on to
3463 the various sub-processes. */
3464 infiles[n_infiles].language = "c";
3465 infiles[n_infiles++].name = "help-dummy";
3467 /* Preserve the --help switch so that it can be caught by the
3469 switches[n_switches].part1 = "--help";
3470 switches[n_switches].args = 0;
3471 switches[n_switches].live_cond = SWITCH_OK;
3472 switches[n_switches].validated = 0;
3477 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3479 /* Compensate for the +e options to the C++ front-end;
3480 they're there simply for cfront call-compatibility. We do
3481 some magic in default_compilers to pass them down properly.
3482 Note we deliberately start at the `+' here, to avoid passing
3483 -e0 or -e1 down into the linker. */
3484 switches[n_switches].part1 = &argv[i][0];
3485 switches[n_switches].args = 0;
3486 switches[n_switches].live_cond = SWITCH_OK;
3487 switches[n_switches].validated = 0;
3490 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3493 /* Split the argument at commas. */
3495 for (j = 4; argv[i][j]; j++)
3496 if (argv[i][j] == ',')
3498 infiles[n_infiles].language = "*";
3499 infiles[n_infiles++].name
3500 = save_string (argv[i] + prev, j - prev);
3503 /* Record the part after the last comma. */
3504 infiles[n_infiles].language = "*";
3505 infiles[n_infiles++].name = argv[i] + prev;
3507 else if (strcmp (argv[i], "-Xlinker") == 0)
3509 infiles[n_infiles].language = "*";
3510 infiles[n_infiles++].name = argv[++i];
3512 else if (strncmp (argv[i], "-l", 2) == 0)
3514 infiles[n_infiles].language = "*";
3515 infiles[n_infiles++].name = argv[i];
3517 else if (strcmp (argv[i], "-specs") == 0)
3519 else if (strncmp (argv[i], "-specs=", 7) == 0)
3521 else if (strcmp (argv[i], "-time") == 0)
3523 else if ((save_temps_flag || report_times)
3524 && strcmp (argv[i], "-pipe") == 0)
3526 /* -save-temps overrides -pipe, so that temp files are produced */
3527 if (save_temps_flag)
3528 error ("Warning: -pipe ignored since -save-temps specified");
3529 /* -time overrides -pipe because we can't get correct stats when
3530 multiple children are running at once. */
3531 else if (report_times)
3532 error ("Warning: -pipe ignored since -time specified");
3534 else if (argv[i][0] == '-' && argv[i][1] != 0)
3536 const char *p = &argv[i][1];
3541 if (p[1] == 0 && i + 1 == argc)
3542 fatal ("argument to `-x' is missing");
3544 spec_lang = argv[++i];
3547 if (! strcmp (spec_lang, "none"))
3548 /* Suppress the warning if -xnone comes after the last input
3549 file, because alternate command interfaces like g++ might
3550 find it useful to place -xnone after each input file. */
3553 last_language_n_infiles = n_infiles;
3556 switches[n_switches].part1 = p;
3557 /* Deal with option arguments in separate argv elements. */
3558 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3559 || WORD_SWITCH_TAKES_ARG (p))
3562 int n_args = WORD_SWITCH_TAKES_ARG (p);
3566 /* Count only the option arguments in separate argv elements. */
3567 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3569 if (i + n_args >= argc)
3570 fatal ("argument to `-%s' is missing", p);
3571 switches[n_switches].args
3572 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3574 switches[n_switches].args[j++] = argv[++i];
3575 /* Null-terminate the vector. */
3576 switches[n_switches].args[j] = 0;
3578 else if (index (switches_need_spaces, c))
3580 /* On some systems, ld cannot handle some options without
3581 a space. So split the option from its argument. */
3582 char *part1 = (char *) xmalloc (2);
3587 switches[n_switches].part1 = part1;
3588 switches[n_switches].args
3589 = (const char **) xmalloc (2 * sizeof (const char *));
3590 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3591 strcpy (tmp, &p[1]);
3592 switches[n_switches].args[1] = 0;
3595 switches[n_switches].args = 0;
3597 switches[n_switches].live_cond = SWITCH_OK;
3598 switches[n_switches].validated = 0;
3599 /* This is always valid, since gcc.c itself understands it. */
3600 if (!strcmp (p, "save-temps"))
3601 switches[n_switches].validated = 1;
3604 char ch = switches[n_switches].part1[0];
3605 if (ch == 'V' || ch == 'b' || ch == 'B')
3606 switches[n_switches].validated = 1;
3612 #ifdef HAVE_OBJECT_SUFFIX
3613 argv[i] = convert_filename (argv[i], 0);
3616 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3618 perror_with_name (argv[i]);
3623 infiles[n_infiles].language = spec_lang;
3624 infiles[n_infiles++].name = argv[i];
3629 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3630 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3632 switches[n_switches].part1 = 0;
3633 infiles[n_infiles].name = 0;
3636 /* Process a spec string, accumulating and running commands. */
3638 /* These variables describe the input file name.
3639 input_file_number is the index on outfiles of this file,
3640 so that the output file name can be stored for later use by %o.
3641 input_basename is the start of the part of the input file
3642 sans all directory names, and basename_length is the number
3643 of characters starting there excluding the suffix .c or whatever. */
3645 const char *input_filename;
3646 static int input_file_number;
3647 size_t input_filename_length;
3648 static int basename_length;
3649 static int suffixed_basename_length;
3650 static const char *input_basename;
3651 static const char *input_suffix;
3653 /* These are variables used within do_spec and do_spec_1. */
3655 /* Nonzero if an arg has been started and not yet terminated
3656 (with space, tab or newline). */
3657 static int arg_going;
3659 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3660 is a temporary file name. */
3661 static int delete_this_arg;
3663 /* Nonzero means %w has been seen; the next arg to be terminated
3664 is the output file name of this compilation. */
3665 static int this_is_output_file;
3667 /* Nonzero means %s has been seen; the next arg to be terminated
3668 is the name of a library file and we should try the standard
3669 search dirs for it. */
3670 static int this_is_library_file;
3672 /* Nonzero means that the input of this command is coming from a pipe. */
3673 static int input_from_pipe;
3675 /* Process the spec SPEC and run the commands specified therein.
3676 Returns 0 if the spec is successfully processed; -1 if failed. */
3686 delete_this_arg = 0;
3687 this_is_output_file = 0;
3688 this_is_library_file = 0;
3689 input_from_pipe = 0;
3691 value = do_spec_1 (spec, 0, NULL_PTR);
3693 /* Force out any unfinished command.
3694 If -pipe, this forces out the last command if it ended in `|'. */
3697 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3700 if (argbuf_index > 0)
3707 /* Process the sub-spec SPEC as a portion of a larger spec.
3708 This is like processing a whole spec except that we do
3709 not initialize at the beginning and we do not supply a
3710 newline by default at the end.
3711 INSWITCH nonzero means don't process %-sequences in SPEC;
3712 in this case, % is treated as an ordinary character.
3713 This is used while substituting switches.
3714 INSWITCH nonzero also causes SPC not to terminate an argument.
3716 Value is zero unless a line was finished
3717 and the command on that line reported an error. */
3720 do_spec_1 (spec, inswitch, soft_matched_part)
3723 const char *soft_matched_part;
3725 register const char *p = spec;
3732 /* If substituting a switch, treat all chars like letters.
3733 Otherwise, NL, SPC, TAB and % are special. */
3734 switch (inswitch ? 'a' : c)
3737 /* End of line: finish any pending argument,
3738 then run the pending command if one has been started. */
3741 obstack_1grow (&obstack, 0);
3742 string = obstack_finish (&obstack);
3743 if (this_is_library_file)
3744 string = find_file (string);
3745 store_arg (string, delete_this_arg, this_is_output_file);
3746 if (this_is_output_file)
3747 outfiles[input_file_number] = string;
3751 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3753 for (i = 0; i < n_switches; i++)
3754 if (!strcmp (switches[i].part1, "pipe"))
3757 /* A `|' before the newline means use a pipe here,
3758 but only if -pipe was specified.
3759 Otherwise, execute now and don't pass the `|' as an arg. */
3762 input_from_pipe = 1;
3763 switches[i].validated = 1;
3770 if (argbuf_index > 0)
3776 /* Reinitialize for a new command, and for a new argument. */
3779 delete_this_arg = 0;
3780 this_is_output_file = 0;
3781 this_is_library_file = 0;
3782 input_from_pipe = 0;
3786 /* End any pending argument. */
3789 obstack_1grow (&obstack, 0);
3790 string = obstack_finish (&obstack);
3791 if (this_is_library_file)
3792 string = find_file (string);
3793 store_arg (string, delete_this_arg, this_is_output_file);
3794 if (this_is_output_file)
3795 outfiles[input_file_number] = string;
3799 obstack_1grow (&obstack, c);
3805 /* Space or tab ends an argument if one is pending. */
3808 obstack_1grow (&obstack, 0);
3809 string = obstack_finish (&obstack);
3810 if (this_is_library_file)
3811 string = find_file (string);
3812 store_arg (string, delete_this_arg, this_is_output_file);
3813 if (this_is_output_file)
3814 outfiles[input_file_number] = string;
3816 /* Reinitialize for a new argument. */
3818 delete_this_arg = 0;
3819 this_is_output_file = 0;
3820 this_is_library_file = 0;
3827 fatal ("Invalid specification! Bug in cc.");
3830 obstack_grow (&obstack, input_basename, basename_length);
3835 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3840 delete_this_arg = 2;
3843 /* Dump out the directories specified with LIBRARY_PATH,
3844 followed by the absolute directories
3845 that we search for startfiles. */
3848 struct prefix_list *pl = startfile_prefixes.plist;
3849 size_t bufsize = 100;
3850 char *buffer = (char *) xmalloc (bufsize);
3853 for (; pl; pl = pl->next)
3855 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3856 /* Used on systems which record the specified -L dirs
3857 and use them to search for dynamic linking. */
3858 /* Relative directories always come from -B,
3859 and it is better not to use them for searching
3860 at run time. In particular, stage1 loses. */
3861 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3864 /* Try subdirectory if there is one. */
3865 if (multilib_dir != NULL)
3869 if (strlen (pl->prefix) + strlen (machine_suffix)
3871 bufsize = (strlen (pl->prefix)
3872 + strlen (machine_suffix)) * 2 + 1;
3873 buffer = (char *) xrealloc (buffer, bufsize);
3874 strcpy (buffer, pl->prefix);
3875 strcat (buffer, machine_suffix);
3876 if (is_directory (buffer, multilib_dir, 1))
3878 do_spec_1 ("-L", 0, NULL_PTR);
3879 #ifdef SPACE_AFTER_L_OPTION
3880 do_spec_1 (" ", 0, NULL_PTR);
3882 do_spec_1 (buffer, 1, NULL_PTR);
3883 do_spec_1 (multilib_dir, 1, NULL_PTR);
3884 /* Make this a separate argument. */
3885 do_spec_1 (" ", 0, NULL_PTR);
3888 if (!pl->require_machine_suffix)
3890 if (is_directory (pl->prefix, multilib_dir, 1))
3892 do_spec_1 ("-L", 0, NULL_PTR);
3893 #ifdef SPACE_AFTER_L_OPTION
3894 do_spec_1 (" ", 0, NULL_PTR);
3896 do_spec_1 (pl->prefix, 1, NULL_PTR);
3897 do_spec_1 (multilib_dir, 1, NULL_PTR);
3898 /* Make this a separate argument. */
3899 do_spec_1 (" ", 0, NULL_PTR);
3905 if (is_directory (pl->prefix, machine_suffix, 1))
3907 do_spec_1 ("-L", 0, NULL_PTR);
3908 #ifdef SPACE_AFTER_L_OPTION
3909 do_spec_1 (" ", 0, NULL_PTR);
3911 do_spec_1 (pl->prefix, 1, NULL_PTR);
3912 /* Remove slash from machine_suffix. */
3913 if (strlen (machine_suffix) >= bufsize)
3914 bufsize = strlen (machine_suffix) * 2 + 1;
3915 buffer = (char *) xrealloc (buffer, bufsize);
3916 strcpy (buffer, machine_suffix);
3917 idx = strlen (buffer);
3918 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3919 buffer[idx - 1] = 0;
3920 do_spec_1 (buffer, 1, NULL_PTR);
3921 /* Make this a separate argument. */
3922 do_spec_1 (" ", 0, NULL_PTR);
3925 if (!pl->require_machine_suffix)
3927 if (is_directory (pl->prefix, "", 1))
3929 do_spec_1 ("-L", 0, NULL_PTR);
3930 #ifdef SPACE_AFTER_L_OPTION
3931 do_spec_1 (" ", 0, NULL_PTR);
3933 /* Remove slash from pl->prefix. */
3934 if (strlen (pl->prefix) >= bufsize)
3935 bufsize = strlen (pl->prefix) * 2 + 1;
3936 buffer = (char *) xrealloc (buffer, bufsize);
3937 strcpy (buffer, pl->prefix);
3938 idx = strlen (buffer);
3939 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3940 buffer[idx - 1] = 0;
3941 do_spec_1 (buffer, 1, NULL_PTR);
3942 /* Make this a separate argument. */
3943 do_spec_1 (" ", 0, NULL_PTR);
3952 /* %efoo means report an error with `foo' as error message
3953 and don't execute any more commands for this file. */
3957 while (*p != 0 && *p != '\n') p++;
3958 buf = (char *) alloca (p - q + 1);
3959 strncpy (buf, q, p - q);
3970 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
3971 and it is not a directory, and it is writable, use it.
3972 Otherwise, fall through and treat this like any other
3975 if ((!save_temps_flag)
3976 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
3977 && (access (HOST_BIT_BUCKET, W_OK) == 0))
3979 obstack_grow (&obstack, HOST_BIT_BUCKET,
3980 strlen (HOST_BIT_BUCKET));
3981 delete_this_arg = 0;
3989 if (save_temps_flag)
3991 obstack_grow (&obstack, input_basename, basename_length);
3992 delete_this_arg = 0;
3996 struct temp_name *t;
3998 const char *suffix = p;
3999 char *saved_suffix = NULL;
4001 while (*p == '.' || ISALPHA ((unsigned char) *p))
4003 suffix_length = p - suffix;
4004 if (p[0] == '%' && p[1] == 'O')
4007 /* We don't support extra suffix characters after %O. */
4008 if (*p == '.' || ISALPHA ((unsigned char) *p))
4010 if (suffix_length == 0)
4011 suffix = OBJECT_SUFFIX;
4015 = (char *) xmalloc (suffix_length
4016 + strlen (OBJECT_SUFFIX));
4017 strncpy (saved_suffix, suffix, suffix_length);
4018 strcpy (saved_suffix + suffix_length,
4021 suffix_length += strlen (OBJECT_SUFFIX);
4024 /* See if we already have an association of %g/%u/%U and
4026 for (t = temp_names; t; t = t->next)
4027 if (t->length == suffix_length
4028 && strncmp (t->suffix, suffix, suffix_length) == 0
4029 && t->unique == (c != 'g'))
4032 /* Make a new association if needed. %u and %j require one. */
4033 if (t == 0 || c == 'u' || c == 'j')
4037 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4038 t->next = temp_names;
4041 t->length = suffix_length;
4042 t->suffix = save_string (suffix, suffix_length);
4043 t->unique = (c != 'g');
4044 temp_filename = make_temp_file (t->suffix);
4045 temp_filename_length = strlen (temp_filename);
4046 t->filename = temp_filename;
4047 t->filename_length = temp_filename_length;
4051 free (saved_suffix);
4053 obstack_grow (&obstack, t->filename, t->filename_length);
4054 delete_this_arg = 1;
4060 obstack_grow (&obstack, input_filename, input_filename_length);
4066 struct prefix_list *pl = include_prefixes.plist;
4068 if (gcc_exec_prefix)
4070 do_spec_1 ("-iprefix", 1, NULL_PTR);
4071 /* Make this a separate argument. */
4072 do_spec_1 (" ", 0, NULL_PTR);
4073 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4074 do_spec_1 (" ", 0, NULL_PTR);
4077 for (; pl; pl = pl->next)
4079 do_spec_1 ("-isystem", 1, NULL_PTR);
4080 /* Make this a separate argument. */
4081 do_spec_1 (" ", 0, NULL_PTR);
4082 do_spec_1 (pl->prefix, 1, NULL_PTR);
4083 do_spec_1 (" ", 0, NULL_PTR);
4090 int max = n_infiles;
4091 max += lang_specific_extra_outfiles;
4093 for (i = 0; i < max; i++)
4095 store_arg (outfiles[i], 0, 0);
4100 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4105 this_is_library_file = 1;
4109 this_is_output_file = 1;
4114 int cur_index = argbuf_index;
4115 /* Handle the {...} following the %W. */
4118 p = handle_braces (p + 1);
4121 /* If any args were output, mark the last one for deletion
4123 if (argbuf_index != cur_index)
4124 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4128 /* %x{OPTION} records OPTION for %X to output. */
4134 /* Skip past the option value and make a copy. */
4139 string = save_string (p1 + 1, p - p1 - 2);
4141 /* See if we already recorded this option. */
4142 for (i = 0; i < n_linker_options; i++)
4143 if (! strcmp (string, linker_options[i]))
4149 /* This option is new; add it. */
4150 add_linker_option (string, strlen (string));
4154 /* Dump out the options accumulated previously using %x. */
4156 for (i = 0; i < n_linker_options; i++)
4158 do_spec_1 (linker_options[i], 1, NULL_PTR);
4159 /* Make each accumulated option a separate argument. */
4160 do_spec_1 (" ", 0, NULL_PTR);
4164 /* Dump out the options accumulated previously using -Wa,. */
4166 for (i = 0; i < n_assembler_options; i++)
4168 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4169 /* Make each accumulated option a separate argument. */
4170 do_spec_1 (" ", 0, NULL_PTR);
4174 /* Dump out the options accumulated previously using -Wp,. */
4176 for (i = 0; i < n_preprocessor_options; i++)
4178 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4179 /* Make each accumulated option a separate argument. */
4180 do_spec_1 (" ", 0, NULL_PTR);
4184 /* Here are digits and numbers that just process
4185 a certain constant string as a spec. */
4188 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4194 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4200 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4206 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4212 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4218 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4224 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4230 value = do_spec_1 (link_spec, 0, NULL_PTR);
4236 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4242 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4249 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4253 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4257 if (! strncmp (y, "-D", 2))
4258 /* Copy the whole option. */
4259 while (*y && *y != ' ' && *y != '\t')
4261 else if (*y == ' ' || *y == '\t')
4262 /* Copy whitespace to the result. */
4264 /* Don't copy other options. */
4271 value = do_spec_1 (buf, 0, NULL_PTR);
4279 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4283 /* Copy all of CPP_PREDEFINES into BUF,
4284 but force them all into the reserved name space if they
4285 aren't already there. The reserved name space is all
4286 identifiers beginning with two underscores or with one
4287 underscore and a capital letter. We do the forcing by
4288 adding up to two underscores to the beginning and end
4289 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4294 if (! strncmp (y, "-D", 2))
4303 && ! ISUPPER ((unsigned char) *(y+1))))
4305 /* Stick __ at front of macro name. */
4309 /* Arrange to stick __ at the end as well. */
4313 /* Copy the macro name. */
4314 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4327 /* Copy the value given, if any. */
4328 while (*y && *y != ' ' && *y != '\t')
4331 else if (*y == ' ' || *y == '\t')
4332 /* Copy whitespace to the result. */
4334 /* Don't copy -A options */
4340 /* Copy all of CPP_PREDEFINES into BUF,
4341 but put __ after every -D. */
4345 if (! strncmp (y, "-D", 2))
4351 && ! ISUPPER ((unsigned char) *(y+1))))
4353 /* Stick -D__ at front of macro name. */
4360 /* Copy the macro name. */
4361 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4364 /* Copy the value given, if any. */
4365 while (*y && *y != ' ' && *y != '\t')
4370 /* Do not copy this macro - we have just done it before */
4371 while (*y && *y != ' ' && *y != '\t')
4375 else if (*y == ' ' || *y == '\t')
4376 /* Copy whitespace to the result. */
4378 /* Don't copy -A options. */
4384 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4388 if (! strncmp (y, "-A", 2))
4389 /* Copy the whole option. */
4390 while (*y && *y != ' ' && *y != '\t')
4392 else if (*y == ' ' || *y == '\t')
4393 /* Copy whitespace to the result. */
4395 /* Don't copy other options. */
4402 value = do_spec_1 (buf, 0, NULL_PTR);
4409 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4414 /* Here we define characters other than letters and digits. */
4417 p = handle_braces (p);
4423 obstack_1grow (&obstack, '%');
4427 if (soft_matched_part)
4429 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4430 do_spec_1 (" ", 0, NULL_PTR);
4433 /* Catch the case where a spec string contains something like
4434 '%{foo:%*}'. ie there is no * in the pattern on the left
4435 hand side of the :. */
4436 error ("Spec failure: '%%*' has not been initialised by pattern match");
4439 /* Process a string found as the value of a spec given by name.
4440 This feature allows individual machine descriptions
4441 to add and use their own specs.
4442 %[...] modifies -D options the way %P does;
4443 %(...) uses the spec unmodified. */
4445 error ("Warning: use of obsolete %%[ operator in specs");
4448 const char *name = p;
4449 struct spec_list *sl;
4452 /* The string after the S/P is the name of a spec that is to be
4454 while (*p && *p != ')' && *p != ']')
4457 /* See if it's in the list. */
4458 for (len = p - name, sl = specs; sl; sl = sl->next)
4459 if (sl->name_len == len && !strncmp (sl->name, name, len))
4461 name = *(sl->ptr_spec);
4463 notice ("Processing spec %c%s%c, which is '%s'\n",
4464 c, sl->name, (c == '(') ? ')' : ']', name);
4473 value = do_spec_1 (name, 0, NULL_PTR);
4479 char *x = (char *) alloca (strlen (name) * 2 + 1);
4481 const char *y = name;
4484 /* Copy all of NAME into BUF, but put __ after
4485 every -D and at the end of each arg. */
4488 if (! strncmp (y, "-D", 2))
4498 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4499 || *y == '}' || *y == 0))
4512 value = do_spec_1 (buf, 0, NULL_PTR);
4518 /* Discard the closing paren or bracket. */
4526 int c1 = *p++; /* Select first or second version number. */
4527 const char *v = compiler_version;
4529 static const char zeroc = '0';
4531 /* The format of the version string is
4532 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4534 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4535 while (! ISDIGIT (*v))
4537 if (v > compiler_version && v[-1] != '-')
4540 /* If desired, advance to second version number. */
4543 /* Set V after the first period. */
4544 while (ISDIGIT (*v))
4551 /* If desired, advance to third version number.
4552 But don't complain if it's not present */
4555 /* Set V after the second period. */
4556 while (ISDIGIT (*v))
4558 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4564 /* Set Q at the next period or at the end. */
4566 while (ISDIGIT (*q))
4568 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4572 /* Put that part into the command. */
4573 obstack_grow (&obstack, v, q - v);
4575 /* Default to "0" */
4576 obstack_grow (&obstack, &zeroc, 1);
4582 if (input_from_pipe)
4583 do_spec_1 ("-", 0, NULL_PTR);
4587 error ("Spec failure: Unrecognised spec option '%c'", c);
4593 /* Backslash: treat next character as ordinary. */
4598 /* Ordinary character: put it into the current argument. */
4599 obstack_1grow (&obstack, c);
4603 return 0; /* End of string */
4606 /* Return 0 if we call do_spec_1 and that returns -1. */
4610 register const char *p;
4612 const char *filter, *body = NULL, *endbody = NULL;
4616 int include_blanks = 1;
4617 int elide_switch = 0;
4621 /* A '^' after the open-brace means to not give blanks before args. */
4628 /* A `|' after the open-brace means,
4629 if the test fails, output a single minus sign rather than nothing.
4630 This is used in %{|!pipe:...}. */
4637 /* A `<' after the open-brace means that the switch should be
4638 removed from the command-line. */
4644 negate = suffix = 0;
4647 /* A `!' after the open-brace negates the condition:
4648 succeed if the specified switch is not present. */
4652 /* A `.' after the open-brace means test against the current suffix. */
4661 if (elide_switch && (negate || pipe_p || suffix))
4663 /* It doesn't make sense to mix elision with other flags. We
4664 could fatal() here, but the standard seems to be to abort. */
4669 while (*p != ':' && *p != '}' && *p != '|') p++;
4671 if (*p == '|' && pipe_p)
4678 register int count = 1;
4679 register const char *q = p;
4681 while (*q++ != ':') continue;
4697 body = p, endbody = p+1;
4702 int found = (input_suffix != 0
4703 && (long) strlen (input_suffix) == (long)(p - filter)
4704 && strncmp (input_suffix, filter, p - filter) == 0);
4710 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4713 else if (p[-1] == '*' && p[0] == '}')
4715 /* Substitute all matching switches as separate args. */
4718 for (i = 0; i < n_switches; i++)
4719 if (!strncmp (switches[i].part1, filter, p - filter)
4720 && check_live_switch (i, p - filter))
4721 give_switch (i, 0, include_blanks);
4725 /* Test for presence of the specified switch. */
4729 /* If name specified ends in *, as in {x*:...},
4730 check for %* and handle that case. */
4731 if (p[-1] == '*' && !negate)
4734 const char *r = body;
4736 /* First see whether we have %*. */
4740 if (*r == '%' && r[1] == '*')
4744 /* If we do, handle that case. */
4747 /* Substitute all matching switches as separate args.
4748 But do this by substituting for %*
4749 in the text that follows the colon. */
4751 unsigned hard_match_len = p - filter - 1;
4752 char *string = save_string (body, endbody - body - 1);
4754 for (i = 0; i < n_switches; i++)
4755 if (!strncmp (switches[i].part1, filter, hard_match_len)
4756 && check_live_switch (i, -1))
4758 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4759 /* Pass any arguments this switch has. */
4760 give_switch (i, 1, 1);
4763 /* We didn't match. Try again. */
4770 /* If name specified ends in *, as in {x*:...},
4771 check for presence of any switch name starting with x. */
4774 for (i = 0; i < n_switches; i++)
4776 unsigned hard_match_len = p - filter - 1;
4778 if (!strncmp (switches[i].part1, filter, hard_match_len)
4779 && check_live_switch (i, hard_match_len))
4786 /* Otherwise, check for presence of exact name specified. */
4789 for (i = 0; i < n_switches; i++)
4791 if (!strncmp (switches[i].part1, filter, p - filter)
4792 && switches[i].part1[p - filter] == 0
4793 && check_live_switch (i, -1))
4801 /* If it is as desired (present for %{s...}, absent for %{!s...})
4802 then substitute either the switch or the specified
4803 conditional text. */
4804 if (present != negate)
4808 switches[i].live_cond = SWITCH_IGNORE;
4809 switches[i].validated = 1;
4813 give_switch (i, 0, include_blanks);
4817 if (do_spec_1 (save_string (body, endbody - body - 1),
4824 /* Here if a %{|...} conditional fails: output a minus sign,
4825 which means "standard output" or "standard input". */
4826 do_spec_1 ("-", 0, NULL_PTR);
4831 /* We didn't match; try again. */
4838 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4839 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4840 spec, or -1 if either exact match or %* is used.
4842 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4843 whose value does not begin with "no-" is obsoleted by the same value
4844 with the "no-", similarly for a switch with the "no-" prefix. */
4847 check_live_switch (switchnum, prefix_length)
4851 const char *name = switches[switchnum].part1;
4854 /* In the common case of {<at-most-one-letter>*}, a negating
4855 switch would always match, so ignore that case. We will just
4856 send the conflicting switches to the compiler phase. */
4857 if (prefix_length >= 0 && prefix_length <= 1)
4860 /* If we already processed this switch and determined if it was
4861 live or not, return our past determination. */
4862 if (switches[switchnum].live_cond != 0)
4863 return switches[switchnum].live_cond > 0;
4865 /* Now search for duplicate in a manner that depends on the name. */
4869 for (i = switchnum + 1; i < n_switches; i++)
4870 if (switches[i].part1[0] == 'O')
4872 switches[switchnum].validated = 1;
4873 switches[switchnum].live_cond = SWITCH_FALSE;
4878 case 'W': case 'f': case 'm':
4879 if (! strncmp (name + 1, "no-", 3))
4881 /* We have Xno-YYY, search for XYYY. */
4882 for (i = switchnum + 1; i < n_switches; i++)
4883 if (switches[i].part1[0] == name[0]
4884 && ! strcmp (&switches[i].part1[1], &name[4]))
4886 switches[switchnum].validated = 1;
4887 switches[switchnum].live_cond = SWITCH_FALSE;
4893 /* We have XYYY, search for Xno-YYY. */
4894 for (i = switchnum + 1; i < n_switches; i++)
4895 if (switches[i].part1[0] == name[0]
4896 && switches[i].part1[1] == 'n'
4897 && switches[i].part1[2] == 'o'
4898 && switches[i].part1[3] == '-'
4899 && !strcmp (&switches[i].part1[4], &name[1]))
4901 switches[switchnum].validated = 1;
4902 switches[switchnum].live_cond = SWITCH_FALSE;
4909 /* Otherwise the switch is live. */
4910 switches[switchnum].live_cond = SWITCH_LIVE;
4914 /* Pass a switch to the current accumulating command
4915 in the same form that we received it.
4916 SWITCHNUM identifies the switch; it is an index into
4917 the vector of switches gcc received, which is `switches'.
4918 This cannot fail since it never finishes a command line.
4920 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4922 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4926 give_switch (switchnum, omit_first_word, include_blanks)
4928 int omit_first_word;
4931 if (switches[switchnum].live_cond == SWITCH_IGNORE)
4934 if (!omit_first_word)
4936 do_spec_1 ("-", 0, NULL_PTR);
4937 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4940 if (switches[switchnum].args != 0)
4943 for (p = switches[switchnum].args; *p; p++)
4946 do_spec_1 (" ", 0, NULL_PTR);
4947 do_spec_1 (*p, 1, NULL_PTR);
4951 do_spec_1 (" ", 0, NULL_PTR);
4952 switches[switchnum].validated = 1;
4955 /* Search for a file named NAME trying various prefixes including the
4956 user's -B prefix and some standard ones.
4957 Return the absolute file name found. If nothing is found, return NAME. */
4965 /* Try multilib_dir if it is defined. */
4966 if (multilib_dir != NULL)
4970 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4971 strcpy (try, multilib_dir);
4972 strcat (try, dir_separator_str);
4975 newname = find_a_file (&startfile_prefixes, try, R_OK);
4977 /* If we don't find it in the multi library dir, then fall
4978 through and look for it in the normal places. */
4979 if (newname != NULL)
4983 newname = find_a_file (&startfile_prefixes, name, R_OK);
4984 return newname ? newname : name;
4987 /* Determine whether a directory exists. If LINKER, return 0 for
4988 certain fixed names not needed by the linker. If not LINKER, it is
4989 only important to return 0 if the host machine has a small ARG_MAX
4993 is_directory (path1, path2, linker)
4998 int len1 = strlen (path1);
4999 int len2 = strlen (path2);
5000 char *path = (char *) alloca (3 + len1 + len2);
5004 #ifndef SMALL_ARG_MAX
5009 /* Construct the path from the two parts. Ensure the string ends with "/.".
5010 The resulting path will be a directory even if the given path is a
5012 memcpy (path, path1, len1);
5013 memcpy (path + len1, path2, len2);
5014 cp = path + len1 + len2;
5015 if (!IS_DIR_SEPARATOR (cp[-1]))
5016 *cp++ = DIR_SEPARATOR;
5020 /* Exclude directories that the linker is known to search. */
5023 && strcmp (path, concat (dir_separator_str, "lib",
5024 dir_separator_str, ".", NULL_PTR)) == 0)
5026 && strcmp (path, concat (dir_separator_str, "usr",
5027 dir_separator_str, "lib",
5028 dir_separator_str, ".", NULL_PTR)) == 0)))
5031 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5034 /* Set up the various global variables to indicate that we're processing
5035 the input file named FILENAME. */
5038 set_input (filename)
5039 const char *filename;
5041 register const char *p;
5043 input_filename = filename;
5044 input_filename_length = strlen (input_filename);
5046 input_basename = input_filename;
5047 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5048 /* Skip drive name so 'x:foo' is handled properly. */
5049 if (input_basename[1] == ':')
5050 input_basename += 2;
5052 for (p = input_basename; *p; p++)
5053 if (IS_DIR_SEPARATOR (*p))
5054 input_basename = p + 1;
5056 /* Find a suffix starting with the last period,
5057 and set basename_length to exclude that suffix. */
5058 basename_length = strlen (input_basename);
5059 suffixed_basename_length = basename_length;
5060 p = input_basename + basename_length;
5061 while (p != input_basename && *p != '.') --p;
5062 if (*p == '.' && p != input_basename)
5064 basename_length = p - input_basename;
5065 input_suffix = p + 1;
5071 /* On fatal signals, delete all the temporary files. */
5074 fatal_error (signum)
5077 signal (signum, SIG_DFL);
5078 delete_failure_queue ();
5079 delete_temp_files ();
5080 /* Get the same signal again, this time not handled,
5081 so its normal effect occurs. */
5082 kill (getpid (), signum);
5085 extern int main PARAMS ((int, const char *const *));
5090 const char *const *argv;
5094 int linker_was_run = 0;
5095 char *explicit_link_files;
5098 struct user_specs *uptr;
5100 p = argv[0] + strlen (argv[0]);
5101 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5105 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5106 /* Perform host dependant initialization when needed. */
5107 GCC_DRIVER_HOST_INITIALIZATION;
5110 #ifdef HAVE_LC_MESSAGES
5111 setlocale (LC_MESSAGES, "");
5113 (void) bindtextdomain (PACKAGE, localedir);
5114 (void) textdomain (PACKAGE);
5116 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5117 signal (SIGINT, fatal_error);
5119 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5120 signal (SIGHUP, fatal_error);
5122 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5123 signal (SIGTERM, fatal_error);
5125 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5126 signal (SIGPIPE, fatal_error);
5130 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5132 obstack_init (&obstack);
5134 /* Build multilib_select, et. al from the separate lines that make up each
5135 multilib selection. */
5137 const char *const *q = multilib_raw;
5140 obstack_init (&multilib_obstack);
5141 while ((p = *q++) != (char *) 0)
5142 obstack_grow (&multilib_obstack, p, strlen (p));
5144 obstack_1grow (&multilib_obstack, 0);
5145 multilib_select = obstack_finish (&multilib_obstack);
5147 q = multilib_matches_raw;
5148 while ((p = *q++) != (char *) 0)
5149 obstack_grow (&multilib_obstack, p, strlen (p));
5151 obstack_1grow (&multilib_obstack, 0);
5152 multilib_matches = obstack_finish (&multilib_obstack);
5154 q = multilib_exclusions_raw;
5155 while ((p = *q++) != (char *) 0)
5156 obstack_grow (&multilib_obstack, p, strlen (p));
5158 obstack_1grow (&multilib_obstack, 0);
5159 multilib_exclusions = obstack_finish (&multilib_obstack);
5162 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5165 obstack_1grow (&multilib_obstack, ' ');
5166 obstack_grow (&multilib_obstack,
5167 multilib_defaults_raw[i],
5168 strlen (multilib_defaults_raw[i]));
5172 obstack_1grow (&multilib_obstack, 0);
5173 multilib_defaults = obstack_finish (&multilib_obstack);
5176 /* Set up to remember the pathname of gcc and any options
5177 needed for collect. We use argv[0] instead of programname because
5178 we need the complete pathname. */
5179 obstack_init (&collect_obstack);
5180 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5181 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
5182 putenv (obstack_finish (&collect_obstack));
5184 #ifdef INIT_ENVIRONMENT
5185 /* Set up any other necessary machine specific environment variables. */
5186 putenv (INIT_ENVIRONMENT);
5189 /* Make a table of what switches there are (switches, n_switches).
5190 Make a table of specified input files (infiles, n_infiles).
5191 Decode switches that are handled locally. */
5193 process_command (argc, argv);
5198 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5200 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5201 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5204 for (i = 0; (int)i < n_switches; i++)
5206 const char *const *args;
5209 obstack_grow (&collect_obstack, " ", 1);
5212 obstack_grow (&collect_obstack, "'-", 2);
5213 q = switches[i].part1;
5214 while ((p = index (q,'\'')))
5216 obstack_grow (&collect_obstack, q, p-q);
5217 obstack_grow (&collect_obstack, "'\\''", 4);
5220 obstack_grow (&collect_obstack, q, strlen (q));
5221 obstack_grow (&collect_obstack, "'", 1);
5223 for (args = switches[i].args; args && *args; args++)
5225 obstack_grow (&collect_obstack, " '", 2);
5227 while ((p = index (q,'\'')))
5229 obstack_grow (&collect_obstack, q, p-q);
5230 obstack_grow (&collect_obstack, "'\\''", 4);
5233 obstack_grow (&collect_obstack, q, strlen (q));
5234 obstack_grow (&collect_obstack, "'", 1);
5237 obstack_grow (&collect_obstack, "\0", 1);
5238 putenv (obstack_finish (&collect_obstack));
5241 /* Initialize the vector of specs to just the default.
5242 This means one element containing 0s, as a terminator. */
5244 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5245 bcopy ((char *) default_compilers, (char *) compilers,
5246 sizeof default_compilers);
5247 n_compilers = n_default_compilers;
5249 /* Read specs from a file if there is one. */
5251 machine_suffix = concat (spec_machine, dir_separator_str,
5252 spec_version, dir_separator_str, NULL_PTR);
5253 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5255 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5256 /* Read the specs file unless it is a default one. */
5257 if (specs_file != 0 && strcmp (specs_file, "specs"))
5258 read_specs (specs_file, TRUE);
5262 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5263 for any override of as, ld and libraries. */
5264 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5265 + strlen (just_machine_suffix)
5266 + sizeof ("specs"));
5268 strcpy (specs_file, standard_exec_prefix);
5269 strcat (specs_file, just_machine_suffix);
5270 strcat (specs_file, "specs");
5271 if (access (specs_file, R_OK) == 0)
5272 read_specs (specs_file, TRUE);
5274 /* If not cross-compiling, look for startfiles in the standard places. */
5275 if (*cross_compile == '0')
5277 #ifdef MD_EXEC_PREFIX
5278 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5279 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5280 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5281 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5284 #ifdef MD_STARTFILE_PREFIX
5285 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5286 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5289 #ifdef MD_STARTFILE_PREFIX_1
5290 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5291 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5294 /* If standard_startfile_prefix is relative, base it on
5295 standard_exec_prefix. This lets us move the installed tree
5296 as a unit. If GCC_EXEC_PREFIX is defined, base
5297 standard_startfile_prefix on that as well. */
5298 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5299 || *standard_startfile_prefix == '$'
5300 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5301 /* Check for disk name on MS-DOS-based systems. */
5302 || (standard_startfile_prefix[1] == ':'
5303 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5306 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5307 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5310 if (gcc_exec_prefix)
5311 add_prefix (&startfile_prefixes,
5312 concat (gcc_exec_prefix, machine_suffix,
5313 standard_startfile_prefix, NULL_PTR),
5314 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5315 add_prefix (&startfile_prefixes,
5316 concat (standard_exec_prefix,
5318 standard_startfile_prefix, NULL_PTR),
5319 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5322 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5323 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5324 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5325 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5326 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5327 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5328 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5333 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5334 add_prefix (&startfile_prefixes,
5335 concat (gcc_exec_prefix, machine_suffix,
5336 standard_startfile_prefix, NULL_PTR),
5337 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5340 /* Process any user specified specs in the order given on the command
5342 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5344 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5345 read_specs (filename ? filename : uptr->filename, FALSE);
5348 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5349 if (gcc_exec_prefix)
5351 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5352 + strlen (spec_version)
5353 + strlen (spec_machine) + 3);
5354 strcpy (temp, gcc_exec_prefix);
5355 strcat (temp, spec_machine);
5356 strcat (temp, dir_separator_str);
5357 strcat (temp, spec_version);
5358 strcat (temp, dir_separator_str);
5359 gcc_exec_prefix = temp;
5362 /* Now we have the specs.
5363 Set the `valid' bits for switches that match anything in any spec. */
5365 validate_all_switches ();
5367 /* Now that we have the switches and the specs, set
5368 the subdirectory based on the options. */
5369 set_multilib_dir ();
5371 /* Warn about any switches that no pass was interested in. */
5373 for (i = 0; (int)i < n_switches; i++)
5374 if (! switches[i].validated)
5375 error ("unrecognized option `-%s'", switches[i].part1);
5377 /* Obey some of the options. */
5379 if (print_search_dirs)
5381 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5382 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5383 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5387 if (print_file_name)
5389 printf ("%s\n", find_file (print_file_name));
5393 if (print_prog_name)
5395 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5396 printf ("%s\n", (newname ? newname : print_prog_name));
5400 if (print_multi_lib)
5402 print_multilib_info ();
5406 if (print_multi_directory)
5408 if (multilib_dir == NULL)
5411 printf ("%s\n", multilib_dir);
5415 if (print_help_list)
5421 printf (_("\nFor bug reporting instructions, please see:\n"));
5422 printf ("%s.\n", GCCBUGURL);
5427 /* We do not exit here. Instead we have created a fake input file
5428 called 'help-dummy' which needs to be compiled, and we pass this
5429 on the the various sub-processes, along with the --help switch. */
5436 /* compiler_version is truncated at the first space when initialized
5437 from version string, so truncate version_string at the first space
5438 before comparing. */
5439 for (n = 0; version_string[n]; n++)
5440 if (version_string[n] == ' ')
5443 if (! strncmp (version_string, compiler_version, n)
5444 && compiler_version[n] == 0)
5445 notice ("gcc version %s\n", version_string);
5447 notice ("gcc driver version %s executing gcc version %s\n",
5448 version_string, compiler_version);
5454 if (n_infiles == added_libraries)
5455 fatal ("No input files");
5457 /* Make a place to record the compiler output file names
5458 that correspond to the input files. */
5461 i += lang_specific_extra_outfiles;
5462 outfiles = (const char **) xcalloc (i, sizeof (char *));
5464 /* Record which files were specified explicitly as link input. */
5466 explicit_link_files = xcalloc (1, n_infiles);
5468 for (i = 0; (int)i < n_infiles; i++)
5470 register struct compiler *cp = 0;
5471 int this_file_error = 0;
5473 /* Tell do_spec what to substitute for %i. */
5475 input_file_number = i;
5476 set_input (infiles[i].name);
5478 /* Use the same thing in %o, unless cp->spec says otherwise. */
5480 outfiles[i] = input_filename;
5482 /* Figure out which compiler from the file's suffix. */
5484 cp = lookup_compiler (infiles[i].name, input_filename_length,
5485 infiles[i].language);
5489 /* Ok, we found an applicable compiler. Run its spec. */
5491 if (cp->spec[0] == '#')
5492 error ("%s: %s compiler not installed on this system",
5493 input_filename, &cp->spec[1]);
5494 value = do_spec (cp->spec);
5496 this_file_error = 1;
5499 /* If this file's name does not contain a recognized suffix,
5500 record it as explicit linker input. */
5503 explicit_link_files[i] = 1;
5505 /* Clear the delete-on-failure queue, deleting the files in it
5506 if this compilation failed. */
5508 if (this_file_error)
5510 delete_failure_queue ();
5513 /* If this compilation succeeded, don't delete those files later. */
5514 clear_failure_queue ();
5517 /* Reset the output file name to the first input file name, for use
5518 with %b in LINK_SPEC on a target that prefers not to emit a.out
5521 set_input (infiles[0].name);
5523 if (error_count == 0)
5525 /* Make sure INPUT_FILE_NUMBER points to first available open
5527 input_file_number = n_infiles;
5528 if (lang_specific_pre_link ())
5532 /* Run ld to link all the compiler output files. */
5534 if (error_count == 0)
5536 int tmp = execution_count;
5538 /* We'll use ld if we can't find collect2. */
5539 if (! strcmp (linker_name_spec, "collect2"))
5541 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5543 linker_name_spec = "ld";
5545 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5547 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5548 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5550 value = do_spec (link_command_spec);
5553 linker_was_run = (tmp != execution_count);
5556 /* Warn if a -B option was specified but the prefix was never used. */
5557 unused_prefix_warnings (&exec_prefixes);
5558 unused_prefix_warnings (&startfile_prefixes);
5560 /* If options said don't run linker,
5561 complain about input files to be given to the linker. */
5563 if (! linker_was_run && error_count == 0)
5564 for (i = 0; (int)i < n_infiles; i++)
5565 if (explicit_link_files[i])
5566 error ("%s: linker input file unused since linking not done",
5569 /* Delete some or all of the temporary files we made. */
5572 delete_failure_queue ();
5573 delete_temp_files ();
5575 if (print_help_list)
5577 printf (("\nFor bug reporting instructions, please see:\n"));
5578 printf ("%s\n", GCCBUGURL);
5581 return (signal_count != 0 ? 2
5582 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5586 /* Find the proper compilation spec for the file name NAME,
5587 whose length is LENGTH. LANGUAGE is the specified language,
5588 or 0 if this file is to be passed to the linker. */
5590 static struct compiler *
5591 lookup_compiler (name, length, language)
5594 const char *language;
5596 struct compiler *cp;
5598 /* If this was specified by the user to be a linker input, indicate that. */
5599 if (language != 0 && language[0] == '*')
5602 /* Otherwise, look for the language, if one is spec'd. */
5605 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5606 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5609 error ("language %s not recognized", language);
5613 /* Look for a suffix. */
5614 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5616 if (/* The suffix `-' matches only the file name `-'. */
5617 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5618 || (strlen (cp->suffix) < length
5619 /* See if the suffix matches the end of NAME. */
5620 && !strcmp (cp->suffix,
5621 name + length - strlen (cp->suffix))
5626 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5627 /* look again, but case-insensitively this time. */
5629 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5631 if (/* The suffix `-' matches only the file name `-'. */
5632 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5633 || (strlen (cp->suffix) < length
5634 /* See if the suffix matches the end of NAME. */
5635 && ((!strcmp (cp->suffix,
5636 name + length - strlen (cp->suffix))
5637 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5638 && !strcasecmp (cp->suffix,
5639 name + length - strlen (cp->suffix)))
5645 if (cp >= compilers)
5647 if (cp->spec[0] != '@')
5648 /* A non-alias entry: return it. */
5651 /* An alias entry maps a suffix to a language.
5652 Search for the language; pass 0 for NAME and LENGTH
5653 to avoid infinite recursion if language not found. */
5654 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5660 save_string (s, len)
5664 register char *result = xmalloc (len + 1);
5666 bcopy (s, result, len);
5672 pfatal_with_name (name)
5675 perror_with_name (name);
5676 delete_temp_files ();
5681 perror_with_name (name)
5684 error ("%s: %s", name, xstrerror (errno));
5688 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5689 const char *errmsg_fmt;
5690 const char *errmsg_arg;
5694 int save_errno = errno;
5696 /* Space for trailing '\0' is in %s. */
5697 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5698 sprintf (msg, errmsg_fmt, errmsg_arg);
5704 pfatal_with_name (errmsg_fmt);
5707 /* Output an error message and exit */
5712 fatal ("Internal gcc abort.");
5715 /* Output an error message and exit */
5718 fatal VPARAMS ((const char *msgid, ...))
5720 #ifndef ANSI_PROTOTYPES
5725 VA_START (ap, msgid);
5727 #ifndef ANSI_PROTOTYPES
5728 msgid = va_arg (ap, const char *);
5731 fprintf (stderr, "%s: ", programname);
5732 vfprintf (stderr, _(msgid), ap);
5734 fprintf (stderr, "\n");
5735 delete_temp_files ();
5740 error VPARAMS ((const char *msgid, ...))
5742 #ifndef ANSI_PROTOTYPES
5747 VA_START (ap, msgid);
5749 #ifndef ANSI_PROTOTYPES
5750 msgid = va_arg (ap, const char *);
5753 fprintf (stderr, "%s: ", programname);
5754 vfprintf (stderr, _(msgid), ap);
5757 fprintf (stderr, "\n");
5761 notice VPARAMS ((const char *msgid, ...))
5763 #ifndef ANSI_PROTOTYPES
5768 VA_START (ap, msgid);
5770 #ifndef ANSI_PROTOTYPES
5771 msgid = va_arg (ap, const char *);
5774 vfprintf (stderr, _(msgid), ap);
5779 validate_all_switches ()
5781 struct compiler *comp;
5782 register const char *p;
5784 struct spec_list *spec;
5786 for (comp = compilers; comp->spec; comp++)
5790 if (c == '%' && *p == '{')
5791 /* We have a switch spec. */
5792 validate_switches (p + 1);
5795 /* Look through the linked list of specs read from the specs file. */
5796 for (spec = specs; spec ; spec = spec->next)
5798 p = *(spec->ptr_spec);
5800 if (c == '%' && *p == '{')
5801 /* We have a switch spec. */
5802 validate_switches (p + 1);
5805 p = link_command_spec;
5807 if (c == '%' && *p == '{')
5808 /* We have a switch spec. */
5809 validate_switches (p + 1);
5812 /* Look at the switch-name that comes after START
5813 and mark as valid all supplied switches that match it. */
5816 validate_switches (start)
5819 register const char *p = start;
5834 while (*p != ':' && *p != '}') p++;
5838 else if (p[-1] == '*')
5840 /* Mark all matching switches as valid. */
5842 for (i = 0; i < n_switches; i++)
5843 if (!strncmp (switches[i].part1, filter, p - filter))
5844 switches[i].validated = 1;
5848 /* Mark an exact matching switch as valid. */
5849 for (i = 0; i < n_switches; i++)
5851 if (!strncmp (switches[i].part1, filter, p - filter)
5852 && switches[i].part1[p - filter] == 0)
5853 switches[i].validated = 1;
5858 /* Check whether a particular argument was used. The first time we
5859 canonicalize the switches to keep only the ones we care about. */
5869 const char *replace;
5874 static struct mswitchstr *mswitches;
5875 static int n_mswitches;
5880 struct mswitchstr *matches;
5884 /* Break multilib_matches into the component strings of string and replacement
5886 for (q = multilib_matches; *q != '\0'; q++)
5890 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5892 q = multilib_matches;
5902 matches[i].len = q - matches[i].str;
5904 matches[i].replace = ++q;
5905 while (*q != ';' && *q != '\0')
5911 matches[i].rep_len = q - matches[i].replace;
5917 /* Now build a list of the replacement string for switches that we care
5918 about. Make sure we allocate at least one entry. This prevents
5919 xmalloc from calling fatal, and prevents us from re-executing this
5922 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5923 * (n_switches ? n_switches : 1));
5924 for (i = 0; i < n_switches; i++)
5926 int xlen = strlen (switches[i].part1);
5927 for (j = 0; j < cnt; j++)
5928 if (xlen == matches[j].len
5929 && ! strncmp (switches[i].part1, matches[j].str, xlen))
5931 mswitches[n_mswitches].str = matches[j].replace;
5932 mswitches[n_mswitches].len = matches[j].rep_len;
5933 mswitches[n_mswitches].replace = (char *) 0;
5934 mswitches[n_mswitches].rep_len = 0;
5941 for (i = 0; i < n_mswitches; i++)
5942 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5949 default_arg (p, len)
5953 const char *start, *end;
5955 for (start = multilib_defaults; *start != '\0'; start = end+1)
5957 while (*start == ' ' || *start == '\t')
5963 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5966 if ((end - start) == len && strncmp (p, start, len) == 0)
5976 /* Work out the subdirectory to use based on the options. The format of
5977 multilib_select is a list of elements. Each element is a subdirectory
5978 name followed by a list of options followed by a semicolon. The format
5979 of multilib_exclusions is the same, but without the preceding
5980 directory. First gcc will check the exclusions, if none of the options
5981 beginning with an exclamation point are present, and all of the other
5982 options are present, then we will ignore this completely. Passing
5983 that, gcc will consider each multilib_select in turn using the same
5984 rules for matching the options. If a match is found, that subdirectory
5991 unsigned int this_path_len;
5992 const char *this_path, *this_arg;
5996 p = multilib_exclusions;
5999 /* Ignore newlines. */
6006 /* Check the arguments. */
6020 while (*p != ' ' && *p != ';')
6027 if (*this_arg != '!')
6035 ok = used_arg (this_arg, p - this_arg);
6049 p = multilib_select;
6052 /* Ignore newlines. */
6059 /* Get the initial path. */
6067 this_path_len = p - this_path;
6069 /* Check the arguments. */
6084 while (*p != ' ' && *p != ';')
6091 if (*this_arg != '!')
6099 /* If this is a default argument, we can just ignore it.
6100 This is true even if this_arg begins with '!'. Beginning
6101 with '!' does not mean that this argument is necessarily
6102 inappropriate for this library: it merely means that
6103 there is a more specific library which uses this
6104 argument. If this argument is a default, we need not
6105 consider that more specific library. */
6106 if (! default_arg (this_arg, p - this_arg))
6108 ok = used_arg (this_arg, p - this_arg);
6119 if (this_path_len != 1
6120 || this_path[0] != '.')
6122 char * new_multilib_dir = xmalloc (this_path_len + 1);
6123 strncpy (new_multilib_dir, this_path, this_path_len);
6124 new_multilib_dir[this_path_len] = '\0';
6125 multilib_dir = new_multilib_dir;
6134 /* Print out the multiple library subdirectory selection
6135 information. This prints out a series of lines. Each line looks
6136 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6137 required. Only the desired options are printed out, the negative
6138 matches. The options are print without a leading dash. There are
6139 no spaces to make it easy to use the information in the shell.
6140 Each subdirectory is printed only once. This assumes the ordering
6141 generated by the genmultilib script. Also, we leave out ones that match
6145 print_multilib_info ()
6147 const char *p = multilib_select;
6148 const char *last_path = 0, *this_path;
6150 unsigned int last_path_len = 0;
6155 /* Ignore newlines. */
6162 /* Get the initial path. */
6171 /* Check for matches with the multilib_exclusions. We don't bother
6172 with the '!' in either list. If any of the exclusion rules match
6173 all of its options with the select rule, we skip it. */
6175 const char *e = multilib_exclusions;
6176 const char *this_arg;
6181 /* Ignore newlines. */
6188 /* Check the arguments. */
6205 while (*e != ' ' && *e != ';')
6216 int len = e - this_arg;
6223 while (*q != ' ' && *q != ';')
6230 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6231 default_arg (this_arg, e - this_arg))
6261 /* If this is a duplicate, skip it. */
6262 skip = (last_path != 0 && (unsigned int)(p - this_path) == last_path_len
6263 && ! strncmp (last_path, this_path, last_path_len));
6265 last_path = this_path;
6266 last_path_len = p - this_path;
6269 /* If this directory requires any default arguments, we can skip
6270 it. We will already have printed a directory identical to
6271 this one which does not require that default argument. */
6289 while (*q != ' ' && *q != ';')
6297 && default_arg (arg, q - arg))
6312 for (p1 = last_path; p1 < p; p1++)
6331 use_arg = *p != '!';
6336 while (*p != ' ' && *p != ';')
6351 /* If there are extra options, print them now. */
6352 if (multilib_extra && *multilib_extra)
6354 int print_at = TRUE;
6357 for (q = multilib_extra; *q != '\0'; q++)