1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
45 #include "gansidecl.h"
49 /* ??? Need to find a GCC header to put these in. */
50 extern int pexecute PROTO ((const char *, char * const *, const char *,
51 const char *, char **, char **, int));
52 extern int pwait PROTO ((int, int *, int));
53 extern char *update_path PROTO((char *, char *));
54 extern void set_std_prefix PROTO((char *, int));
55 /* Flag arguments to pexecute. */
56 #define PEXECUTE_FIRST 1
57 #define PEXECUTE_LAST 2
58 #define PEXECUTE_SEARCH 4
59 #define PEXECUTE_VERBOSE 8
62 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
65 #define WTERMSIG(S) ((S) & 0x7f)
68 #define WIFEXITED(S) (((S) & 0xff) == 0)
71 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
75 #define exit __posix_exit
82 /* Test if something is a normal file. */
84 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
87 /* Test if something is a directory. */
89 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
92 /* By default there is no special suffix for executables. */
93 #ifdef EXECUTABLE_SUFFIX
94 #define HAVE_EXECUTABLE_SUFFIX
96 #define EXECUTABLE_SUFFIX ""
99 /* By default, the suffix for object files is ".o". */
101 #define HAVE_OBJECT_SUFFIX
103 #define OBJECT_SUFFIX ".o"
106 /* By default, colon separates directories in a path. */
107 #ifndef PATH_SEPARATOR
108 #define PATH_SEPARATOR ':'
111 #ifndef DIR_SEPARATOR
112 #define DIR_SEPARATOR '/'
115 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
117 #define obstack_chunk_alloc xmalloc
118 #define obstack_chunk_free free
120 #ifndef GET_ENVIRONMENT
121 #define GET_ENVIRONMENT(ENV_VALUE,ENV_NAME) ENV_VALUE = getenv (ENV_NAME)
124 extern char *choose_temp_base PROTO((void));
126 #ifndef HAVE_STRERROR
128 extern char *sys_errlist[];
130 extern char *strerror();
134 #define kill(p,s) raise(s)
137 /* If a stage of compilation returns an exit status >= 1,
138 compilation of that file ceases. */
140 #define MIN_FATAL_STATUS 1
142 /* Flag saying to print the directories gcc will search through looking for
143 programs, libraries, etc. */
145 static int print_search_dirs;
147 /* Flag saying to print the full filename of this file
148 as found through our usual search mechanism. */
150 static char *print_file_name = NULL;
152 /* As print_file_name, but search for executable file. */
154 static char *print_prog_name = NULL;
156 /* Flag saying to print the relative path we'd use to
157 find libgcc.a given the current compiler flags. */
159 static int print_multi_directory;
161 /* Flag saying to print the list of subdirectories and
162 compiler flags used to select them in a standard form. */
164 static int print_multi_lib;
166 /* Flag indicating whether we should print the command and arguments */
168 static int verbose_flag;
170 /* Nonzero means write "temp" files in source directory
171 and use the source file's name in them, and don't delete them. */
173 static int save_temps_flag;
175 /* The compiler version. */
177 static char *compiler_version;
179 /* The target version specified with -V */
181 static char *spec_version = DEFAULT_TARGET_VERSION;
183 /* The target machine specified with -b. */
185 static char *spec_machine = DEFAULT_TARGET_MACHINE;
187 /* Nonzero if cross-compiling.
188 When -b is used, the value comes from the `specs' file. */
191 static char *cross_compile = "1";
193 static char *cross_compile = "0";
196 /* The number of errors that have occurred; the link phase will not be
197 run if this is non-zero. */
198 static int error_count = 0;
200 /* This is the obstack which we use to allocate many strings. */
202 static struct obstack obstack;
204 /* This is the obstack to build an environment variable to pass to
205 collect2 that describes all of the relevant switches of what to
206 pass the compiler in building the list of pointers to constructors
209 static struct obstack collect_obstack;
211 extern char *version_string;
213 /* Forward declaration for prototypes. */
216 static void init_spec PROTO((void));
217 static void read_specs PROTO((char *, int));
218 static void set_spec PROTO((char *, char *));
219 static struct compiler *lookup_compiler PROTO((char *, size_t, char *));
220 static char *build_search_list PROTO((struct path_prefix *, char *, int));
221 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
222 static char *find_a_file PROTO((struct path_prefix *, char *, int));
223 static void add_prefix PROTO((struct path_prefix *, char *, char *,
225 static char *skip_whitespace PROTO((char *));
226 static void record_temp_file PROTO((char *, int, int));
227 static void delete_if_ordinary PROTO((char *));
228 static void delete_temp_files PROTO((void));
229 static void delete_failure_queue PROTO((void));
230 static void clear_failure_queue PROTO((void));
231 static int check_live_switch PROTO((int, int));
232 static char *handle_braces PROTO((char *));
233 static char *save_string PROTO((char *, int));
234 static char *concat PVPROTO((char *, ...));
235 static int do_spec PROTO((char *));
236 static int do_spec_1 PROTO((char *, int, char *));
237 static char *find_file PROTO((char *));
238 static int is_directory PROTO((char *, char *, int));
239 static void validate_switches PROTO((char *));
240 static void validate_all_switches PROTO((void));
241 static void give_switch PROTO((int, int, int));
242 static int used_arg PROTO((char *, int));
243 static int default_arg PROTO((char *, int));
244 static void set_multilib_dir PROTO((void));
245 static void print_multilib_info PROTO((void));
246 static void pfatal_with_name PROTO((char *));
247 static void perror_with_name PROTO((char *));
248 static void pfatal_pexecute PROTO((char *, char *));
250 static void fatal PVPROTO((char *, ...));
251 static void error PVPROTO((char *, ...));
253 /* We must not provide any prototype here, even if ANSI C. */
254 static void fatal PROTO(());
255 static void error PROTO(());
262 #ifdef LANG_SPECIFIC_DRIVER
264 extern void lang_specific_driver PROTO ((void (*) (char *, ...), int *, char ***, int *));
266 extern void lang_specific_driver PROTO ((void (*) (), int *, char ***, int *));
270 /* Specs are strings containing lines, each of which (if not blank)
271 is made up of a program name, and arguments separated by spaces.
272 The program name must be exact and start from root, since no path
273 is searched and it is unreliable to depend on the current working directory.
274 Redirection of input or output is not supported; the subprograms must
275 accept filenames saying what files to read and write.
277 In addition, the specs can contain %-sequences to substitute variable text
278 or for conditional text. Here is a table of all defined %-sequences.
279 Note that spaces are not generated automatically around the results of
280 expanding these sequences; therefore, you can concatenate them together
281 or with constant text in a single argument.
283 %% substitute one % into the program name or argument.
284 %i substitute the name of the input file being processed.
285 %b substitute the basename of the input file being processed.
286 This is the substring up to (and not including) the last period
287 and not including the directory.
288 %g substitute the temporary-file-name-base. This is a string chosen
289 once per compilation. Different temporary file names are made by
290 concatenation of constant strings on the end, as in `%g.s'.
291 %g also has the same effect of %d.
292 %u like %g, but make the temporary file name unique.
293 %U returns the last file name generated with %u.
294 %d marks the argument containing or following the %d as a
295 temporary file name, so that that file will be deleted if CC exits
296 successfully. Unlike %g, this contributes no text to the argument.
297 %w marks the argument containing or following the %w as the
298 "output file" of this compilation. This puts the argument
299 into the sequence of arguments that %o will substitute later.
301 like %{...} but mark last argument supplied within
302 as a file to be deleted on failure.
303 %o substitutes the names of all the output files, with spaces
304 automatically placed around them. You should write spaces
305 around the %o as well or the results are undefined.
306 %o is for use in the specs for running the linker.
307 Input files whose names have no recognized suffix are not compiled
308 at all, but they are included among the output files, so they will
310 %O substitutes the suffix for object files.
311 %p substitutes the standard macro predefinitions for the
312 current target machine. Use this when running cpp.
313 %P like %p, but puts `__' before and after the name of each macro.
314 (Except macros that already have __.)
316 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
317 %s current argument is the name of a library or startup file of some sort.
318 Search for that file in a standard list of directories
319 and substitute the full name found.
320 %eSTR Print STR as an error message. STR is terminated by a newline.
321 Use this when inconsistent options are detected.
322 %x{OPTION} Accumulate an option for %X.
323 %X Output the accumulated linker options specified by compilations.
324 %Y Output the accumulated assembler options specified by compilations.
325 %Z Output the accumulated preprocessor options specified by compilations.
326 %v1 Substitute the major version number of GCC.
327 (For version 2.5.n, this is 2.)
328 %v2 Substitute the minor version number of GCC.
329 (For version 2.5.n, this is 5.)
330 %a process ASM_SPEC as a spec.
331 This allows config.h to specify part of the spec for running as.
332 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
333 used here. This can be used to run a post-processor after the
334 assembler has done it's job.
335 %D Dump out a -L option for each directory in startfile_prefixes.
336 If multilib_dir is set, extra entries are generated with it affixed.
337 %l process LINK_SPEC as a spec.
338 %L process LIB_SPEC as a spec.
339 %G process LIBGCC_SPEC as a spec.
340 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
341 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
342 %c process SIGNED_CHAR_SPEC as a spec.
343 %C process CPP_SPEC as a spec. A capital C is actually used here.
344 %1 process CC1_SPEC as a spec.
345 %2 process CC1PLUS_SPEC as a spec.
346 %| output "-" if the input for the current command is coming from a pipe.
347 %* substitute the variable part of a matched option. (See below.)
348 Note that each comma in the substituted string is replaced by
350 %{S} substitutes the -S switch, if that switch was given to CC.
351 If that switch was not specified, this substitutes nothing.
352 Here S is a metasyntactic variable.
353 %{S*} substitutes all the switches specified to CC whose names start
354 with -S. This is used for -o, -D, -I, etc; switches that take
355 arguments. CC considers `-o foo' as being one switch whose
356 name starts with `o'. %{o*} would substitute this text,
357 including the space; thus, two arguments would be generated.
358 %{^S*} likewise, but don't put a blank between a switch and any args.
359 %{S*:X} substitutes X if one or more switches whose names start with -S are
360 specified to CC. Note that the tail part of the -S option
361 (i.e. the part matched by the `*') will be substituted for each
362 occurrence of %* within X.
363 %{S:X} substitutes X, but only if the -S switch was given to CC.
364 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
365 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
366 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
367 %{.S:X} substitutes X, but only if processing a file with suffix S.
368 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
369 %(Spec) processes a specification defined in a specs file as *Spec:
370 %[Spec] as above, but put __ around -D arguments
372 The conditional text X in a %{S:X} or %{!S:X} construct may contain
373 other nested % constructs or spaces, or even newlines. They are
374 processed as usual, as described above.
376 The -O, -f, -m, and -W switches are handled specifically in these
377 constructs. If another value of -O or the negated form of a -f, -m, or
378 -W switch is found later in the command line, the earlier switch
379 value is ignored, except with {S*} where S is just one letter; this
380 passes all matching options.
382 The character | is used to indicate that a command should be piped to
383 the following command, but only if -pipe is specified.
385 Note that it is built into CC which switches take arguments and which
386 do not. You might think it would be useful to generalize this to
387 allow each compiler's spec to say which switches take arguments. But
388 this cannot be done in a consistent fashion. CC cannot even decide
389 which input files have been specified without knowing which switches
390 take arguments, and it must know which input files to compile in order
391 to tell which compilers to run.
393 CC also knows implicitly that arguments starting in `-l' are to be
394 treated as compiler output files, and passed to the linker in their
395 proper position among the other output files. */
397 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
399 /* config.h can define ASM_SPEC to provide extra args to the assembler
400 or extra switch-translations. */
405 /* config.h can define ASM_FINAL_SPEC to run a post processor after
406 the assembler has run. */
407 #ifndef ASM_FINAL_SPEC
408 #define ASM_FINAL_SPEC ""
411 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
412 or extra switch-translations. */
417 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
418 or extra switch-translations. */
423 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
424 or extra switch-translations. */
426 #define CC1PLUS_SPEC ""
429 /* config.h can define LINK_SPEC to provide extra args to the linker
430 or extra switch-translations. */
435 /* config.h can define LIB_SPEC to override the default libraries. */
437 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
440 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
443 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
444 /* Have gcc do the search for libgcc.a. */
445 #define LIBGCC_SPEC "libgcc.a%s"
447 #define LIBGCC_SPEC "-lgcc"
451 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
452 #ifndef STARTFILE_SPEC
453 #define STARTFILE_SPEC \
454 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
457 /* config.h can define SWITCHES_NEED_SPACES to control which options
458 require spaces between the option and the argument. */
459 #ifndef SWITCHES_NEED_SPACES
460 #define SWITCHES_NEED_SPACES ""
463 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
465 #define ENDFILE_SPEC ""
468 /* This spec is used for telling cpp whether char is signed or not. */
469 #ifndef SIGNED_CHAR_SPEC
470 /* Use #if rather than ?:
471 because MIPS C compiler rejects like ?: in initializers. */
472 #if DEFAULT_SIGNED_CHAR
473 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
475 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
480 #define LINKER_NAME "collect2"
483 static char *cpp_spec = CPP_SPEC;
484 static char *cpp_predefines = CPP_PREDEFINES;
485 static char *cc1_spec = CC1_SPEC;
486 static char *cc1plus_spec = CC1PLUS_SPEC;
487 static char *signed_char_spec = SIGNED_CHAR_SPEC;
488 static char *asm_spec = ASM_SPEC;
489 static char *asm_final_spec = ASM_FINAL_SPEC;
490 static char *link_spec = LINK_SPEC;
491 static char *lib_spec = LIB_SPEC;
492 static char *libgcc_spec = LIBGCC_SPEC;
493 static char *endfile_spec = ENDFILE_SPEC;
494 static char *startfile_spec = STARTFILE_SPEC;
495 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
496 static char *linker_name_spec = LINKER_NAME;
498 /* Some compilers have limits on line lengths, and the multilib_select
499 and/or multilib_matches strings can be very long, so we build them at
501 static struct obstack multilib_obstack;
502 static char *multilib_select;
503 static char *multilib_matches;
504 static char *multilib_defaults;
505 #include "multilib.h"
507 /* Check whether a particular argument is a default argument. */
509 #ifndef MULTILIB_DEFAULTS
510 #define MULTILIB_DEFAULTS { "" }
513 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
516 struct user_specs *next;
520 static struct user_specs *user_specs_head, *user_specs_tail;
522 /* This defines which switch letters take arguments. */
524 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
525 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
526 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
527 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
528 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
529 || (CHAR) == 'B' || (CHAR) == 'b')
531 #ifndef SWITCH_TAKES_ARG
532 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
535 /* This defines which multi-letter switches take arguments. */
537 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
538 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
539 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
540 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
541 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
542 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
543 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
545 #ifndef WORD_SWITCH_TAKES_ARG
546 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
549 /* Record the mapping from file suffixes for compilation specs. */
553 char *suffix; /* Use this compiler for input files
554 whose names end in this suffix. */
556 char *spec[4]; /* To use this compiler, concatenate these
557 specs and pass to do_spec. */
560 /* Pointer to a vector of `struct compiler' that gives the spec for
561 compiling a file, based on its suffix.
562 A file that does not end in any of these suffixes will be passed
563 unchanged to the loader and nothing else will be done to it.
565 An entry containing two 0s is used to terminate the vector.
567 If multiple entries match a file, the last matching one is used. */
569 static struct compiler *compilers;
571 /* Number of entries in `compilers', not counting the null terminator. */
573 static int n_compilers;
575 /* The default list of file name suffixes and their compilation specs. */
577 static struct compiler default_compilers[] =
579 /* Add lists of suffixes of known languages here. If those languages
580 were not present when we built the driver, we will hit these copies
581 and be given a more meaningful error than "file not used since
582 linking is not done". */
583 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
584 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
585 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
586 {".fpp", {"#Fortran"}},
587 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
588 /* Next come the entries for C. */
591 {"cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
592 %{C:%{!E:%eGNU C does not support -C without using -E}}\
593 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
594 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
595 %{ansi:-trigraphs -D__STRICT_ANSI__}\
596 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
597 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
598 %{traditional} %{ftraditional:-traditional}\
599 %{traditional-cpp:-traditional}\
600 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
601 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
602 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
603 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
604 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
605 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
607 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
608 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
610 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
611 %{!pipe:%g.s} %A\n }}}}"}},
613 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
614 %{C:%{!E:%eGNU C does not support -C without using -E}}\
615 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
616 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
617 %{ansi:-trigraphs -D__STRICT_ANSI__}\
618 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
619 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
620 %{traditional} %{ftraditional:-traditional}\
621 %{traditional-cpp:-traditional}\
622 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
624 %{!E:%e-E required when input is from standard input}"}},
625 {".m", {"@objective-c"}},
627 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
628 %{C:%{!E:%eGNU C does not support -C without using -E}}\
629 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
630 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
631 %{ansi:-trigraphs -D__STRICT_ANSI__}\
632 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
633 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
634 %{traditional} %{ftraditional:-traditional}\
635 %{traditional-cpp:-traditional}\
636 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
637 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
638 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
639 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
640 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
641 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
642 -lang-objc %{gen-decls} \
644 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
645 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
647 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
648 %{!pipe:%g.s} %A\n }}}}"}},
649 {".h", {"@c-header"}},
651 {"%{!E:%eCompilation of header file requested} \
652 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
653 %{C:%{!E:%eGNU C does not support -C without using -E}}\
654 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
655 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
656 %{ansi:-trigraphs -D__STRICT_ANSI__}\
657 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
658 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
659 %{traditional} %{ftraditional:-traditional}\
660 %{traditional-cpp:-traditional}\
661 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
663 {".i", {"@cpp-output"}},
665 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
666 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
667 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
669 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
670 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
672 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
673 %{!pipe:%g.s} %A\n }}}}"}},
674 {".s", {"@assembler"}},
676 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
677 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 {".S", {"@assembler-with-cpp"}},
680 {"@assembler-with-cpp",
681 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
682 %{C:%{!E:%eGNU C does not support -C without using -E}}\
683 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
684 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
685 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
686 %{traditional} %{ftraditional:-traditional}\
687 %{traditional-cpp:-traditional}\
688 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
689 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
690 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
691 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
692 %{!pipe:%g.s} %A\n }}}}"}},
694 /* Mark end of table */
698 /* Number of elements in default_compilers, not counting the terminator. */
700 static int n_default_compilers
701 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
703 /* Here is the spec for running the linker, after compiling all files. */
705 /* -u* was put back because both BSD and SysV seem to support it. */
706 /* %{static:} simply prevents an error message if the target machine
707 doesn't handle -static. */
708 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
709 scripts which exist in user specified directories, or in standard
711 #ifdef LINK_LIBGCC_SPECIAL
712 /* Don't generate -L options. */
713 static char *link_command_spec = "\
715 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
716 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
717 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
719 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
720 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
725 static char *link_command_spec = "\
727 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
728 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
729 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
730 %{static:} %{L*} %D %o\
731 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
732 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
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. */
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. */
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 {"--comments", "-C", 0},
782 {"--compile", "-c", 0},
783 {"--debug", "-g", "oj"},
784 {"--define-macro", "-D", "aj"},
785 {"--dependencies", "-M", 0},
786 {"--dump", "-d", "a"},
787 {"--dumpbase", "-dumpbase", "a"},
788 {"--entry", "-e", 0},
789 {"--extra-warnings", "-W", 0},
790 {"--for-assembler", "-Wa", "a"},
791 {"--for-linker", "-Xlinker", "a"},
792 {"--force-link", "-u", "a"},
793 {"--imacros", "-imacros", "a"},
794 {"--include", "-include", "a"},
795 {"--include-barrier", "-I-", 0},
796 {"--include-directory", "-I", "aj"},
797 {"--include-directory-after", "-idirafter", "a"},
798 {"--include-prefix", "-iprefix", "a"},
799 {"--include-with-prefix", "-iwithprefix", "a"},
800 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
801 {"--include-with-prefix-after", "-iwithprefix", "a"},
802 {"--language", "-x", "a"},
803 {"--library-directory", "-L", "a"},
804 {"--machine", "-m", "aj"},
805 {"--machine-", "-m", "*j"},
806 {"--no-line-commands", "-P", 0},
807 {"--no-precompiled-includes", "-noprecomp", 0},
808 {"--no-standard-includes", "-nostdinc", 0},
809 {"--no-standard-libraries", "-nostdlib", 0},
810 {"--no-warnings", "-w", 0},
811 {"--optimize", "-O", "oj"},
812 {"--output", "-o", "a"},
813 {"--pedantic", "-pedantic", 0},
814 {"--pedantic-errors", "-pedantic-errors", 0},
815 {"--pipe", "-pipe", 0},
816 {"--prefix", "-B", "a"},
817 {"--preprocess", "-E", 0},
818 {"--print-search-dirs", "-print-search-dirs", 0},
819 {"--print-file-name", "-print-file-name=", "aj"},
820 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
821 {"--print-missing-file-dependencies", "-MG", 0},
822 {"--print-multi-lib", "-print-multi-lib", 0},
823 {"--print-multi-directory", "-print-multi-directory", 0},
824 {"--print-prog-name", "-print-prog-name=", "aj"},
825 {"--profile", "-p", 0},
826 {"--profile-blocks", "-a", 0},
827 {"--quiet", "-q", 0},
828 {"--save-temps", "-save-temps", 0},
829 {"--shared", "-shared", 0},
830 {"--silent", "-q", 0},
831 {"--specs", "-specs=", "aj"},
832 {"--static", "-static", 0},
833 {"--symbolic", "-symbolic", 0},
834 {"--target", "-b", "a"},
835 {"--trace-includes", "-H", 0},
836 {"--traditional", "-traditional", 0},
837 {"--traditional-cpp", "-traditional-cpp", 0},
838 {"--trigraphs", "-trigraphs", 0},
839 {"--undefine-macro", "-U", "aj"},
840 {"--use-version", "-V", "a"},
841 {"--user-dependencies", "-MM", 0},
842 {"--verbose", "-v", 0},
843 {"--version", "-dumpversion", 0},
844 {"--warn-", "-W", "*j"},
845 {"--write-dependencies", "-MD", 0},
846 {"--write-user-dependencies", "-MMD", 0},
850 /* Translate the options described by *ARGCP and *ARGVP.
851 Make a new vector and store it back in *ARGVP,
852 and store its length in *ARGVC. */
855 translate_options (argcp, argvp)
861 char **argv = *argvp;
862 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
866 newv[newindex++] = argv[i++];
870 /* Translate -- options. */
871 if (argv[i][0] == '-' && argv[i][1] == '-')
873 /* Find a mapping that applies to this option. */
874 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
876 size_t optlen = strlen (option_map[j].name);
877 size_t arglen = strlen (argv[i]);
878 size_t complen = arglen > optlen ? optlen : arglen;
879 char *arginfo = option_map[j].arg_info;
884 if (!strncmp (argv[i], option_map[j].name, complen))
891 k < sizeof (option_map) / sizeof (option_map[0]);
893 if (strlen (option_map[k].name) >= arglen
894 && !strncmp (argv[i], option_map[k].name, arglen))
896 error ("Ambiguous abbreviation %s", argv[i]);
900 if (k != sizeof (option_map) / sizeof (option_map[0]))
906 /* If the option has an argument, accept that. */
907 if (argv[i][optlen] == '=')
908 arg = argv[i] + optlen + 1;
910 /* If this mapping requires extra text at end of name,
911 accept that as "argument". */
912 else if (index (arginfo, '*') != 0)
913 arg = argv[i] + optlen;
915 /* Otherwise, extra text at end means mismatch.
916 Try other mappings. */
921 else if (index (arginfo, '*') != 0)
923 error ("Incomplete `%s' option", option_map[j].name);
927 /* Handle arguments. */
928 if (index (arginfo, 'a') != 0)
934 error ("Missing argument to `%s' option",
942 else if (index (arginfo, '*') != 0)
944 else if (index (arginfo, 'o') == 0)
947 error ("Extraneous argument to `%s' option",
952 /* Store the translation as one argv elt or as two. */
953 if (arg != 0 && index (arginfo, 'j') != 0)
954 newv[newindex++] = concat (option_map[j].equivalent, arg,
958 newv[newindex++] = option_map[j].equivalent;
959 newv[newindex++] = arg;
962 newv[newindex++] = option_map[j].equivalent;
970 /* Handle old-fashioned options--just copy them through,
971 with their arguments. */
972 else if (argv[i][0] == '-')
974 char *p = argv[i] + 1;
978 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
979 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
980 else if (WORD_SWITCH_TAKES_ARG (p))
981 nskip += WORD_SWITCH_TAKES_ARG (p);
982 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
985 else if (! strcmp (p, "Xlinker"))
988 /* Watch out for an option at the end of the command line that
989 is missing arguments, and avoid skipping past the end of the
991 if (nskip + i > argc)
996 newv[newindex++] = argv[i++];
1001 /* Ordinary operands, or +e options. */
1002 newv[newindex++] = argv[i++];
1015 #ifdef HAVE_STRERROR
1021 static char buffer[30];
1023 return "cannot access";
1025 if (e > 0 && e < sys_nerr)
1026 return sys_errlist[e];
1028 sprintf (buffer, "Unknown error %d", e);
1039 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1040 be considered whitespace. */
1041 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1043 else if (*p == '\n' || *p == ' ' || *p == '\t')
1047 while (*p != '\n') p++;
1057 /* Structure to keep track of the specs that have been defined so far.
1058 These are accessed using %(specname) or %[specname] in a compiler
1063 /* The following 2 fields must be first */
1064 /* to allow EXTRA_SPECS to be initialized */
1065 char *name; /* name of the spec. */
1066 char *ptr; /* available ptr if no static pointer */
1068 /* The following fields are not initialized */
1069 /* by EXTRA_SPECS */
1070 char **ptr_spec; /* pointer to the spec itself. */
1071 struct spec_list *next; /* Next spec in linked list. */
1072 int name_len; /* length of the name */
1073 int alloc_p; /* whether string was allocated */
1076 #define INIT_STATIC_SPEC(NAME,PTR) \
1077 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1079 /* List of statically defined specs */
1080 static struct spec_list static_specs[] = {
1081 INIT_STATIC_SPEC ("asm", &asm_spec),
1082 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1083 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1084 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1085 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1086 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1087 INIT_STATIC_SPEC ("link", &link_spec),
1088 INIT_STATIC_SPEC ("lib", &lib_spec),
1089 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1090 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1091 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1092 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1093 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1094 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1095 INIT_STATIC_SPEC ("version", &compiler_version),
1096 INIT_STATIC_SPEC ("multilib", &multilib_select),
1097 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1098 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1099 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1100 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1103 #ifdef EXTRA_SPECS /* additional specs needed */
1104 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1107 /* List of dynamically allocates specs that have been defined so far. */
1109 static struct spec_list *specs = (struct spec_list *)0;
1112 /* Initialize the specs lookup routines. */
1117 struct spec_list *next = (struct spec_list *)0;
1118 struct spec_list *sl = (struct spec_list *)0;
1122 return; /* already initialized */
1125 fprintf (stderr, "Using builtin specs.\n");
1128 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1130 sl = &extra_specs[i];
1132 sl->name_len = strlen (sl->name);
1133 sl->ptr_spec = &sl->ptr;
1138 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1140 sl = &static_specs[i];
1149 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1150 removed; If the spec starts with a + then SPEC is added to the end of the
1154 set_spec (name, spec)
1158 struct spec_list *sl;
1160 int name_len = strlen (name);
1163 /* If this is the first call, initialize the statically allocated specs */
1166 struct spec_list *next = (struct spec_list *)0;
1167 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1170 sl = &static_specs[i];
1177 /* See if the spec already exists */
1178 for (sl = specs; sl; sl = sl->next)
1179 if (name_len == sl->name_len && !strcmp (sl->name, name))
1184 /* Not found - make it */
1185 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1186 sl->name = save_string (name, strlen (name));
1187 sl->name_len = name_len;
1188 sl->ptr_spec = &sl->ptr;
1190 *(sl->ptr_spec) = "";
1195 old_spec = *(sl->ptr_spec);
1196 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE (spec[1]))
1197 ? concat (old_spec, spec + 1, NULL_PTR)
1198 : save_string (spec, strlen (spec)));
1202 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1205 /* Free the old spec */
1206 if (old_spec && sl->alloc_p)
1212 /* Accumulate a command (program name and args), and run it. */
1214 /* Vector of pointers to arguments in the current line of specifications. */
1216 static char **argbuf;
1218 /* Number of elements allocated in argbuf. */
1220 static int argbuf_length;
1222 /* Number of elements in argbuf currently in use (containing args). */
1224 static int argbuf_index;
1226 #ifdef MKTEMP_EACH_FILE
1227 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1230 static struct temp_name {
1231 char *suffix; /* suffix associated with the code. */
1232 int length; /* strlen (suffix). */
1233 int unique; /* Indicates whether %g or %u/%U was used. */
1234 char *filename; /* associated filename. */
1235 int filename_length; /* strlen (filename). */
1236 struct temp_name *next;
1240 /* Number of commands executed so far. */
1242 static int execution_count;
1244 /* Number of commands that exited with a signal. */
1246 static int signal_count;
1248 /* Name with which this program was invoked. */
1250 static char *programname;
1252 /* Structures to keep track of prefixes to try when looking for files. */
1256 char *prefix; /* String to prepend to the path. */
1257 struct prefix_list *next; /* Next in linked list. */
1258 int require_machine_suffix; /* Don't use without machine_suffix. */
1259 /* 2 means try both machine_suffix and just_machine_suffix. */
1260 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1265 struct prefix_list *plist; /* List of prefixes to try */
1266 int max_len; /* Max length of a prefix in PLIST */
1267 char *name; /* Name of this list (used in config stuff) */
1270 /* List of prefixes to try when looking for executables. */
1272 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1274 /* List of prefixes to try when looking for startup (crt0) files. */
1276 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1278 /* List of prefixes to try when looking for include files. */
1280 static struct path_prefix include_prefixes = { 0, 0, "include" };
1282 /* Suffix to attach to directories searched for commands.
1283 This looks like `MACHINE/VERSION/'. */
1285 static char *machine_suffix = 0;
1287 /* Suffix to attach to directories searched for commands.
1288 This is just `MACHINE/'. */
1290 static char *just_machine_suffix = 0;
1292 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1294 static char *gcc_exec_prefix;
1296 /* Default prefixes to attach to command names. */
1298 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1299 #undef MD_EXEC_PREFIX
1300 #undef MD_STARTFILE_PREFIX
1301 #undef MD_STARTFILE_PREFIX_1
1304 #ifndef STANDARD_EXEC_PREFIX
1305 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1306 #endif /* !defined STANDARD_EXEC_PREFIX */
1308 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1309 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1310 #ifdef MD_EXEC_PREFIX
1311 static char *md_exec_prefix = MD_EXEC_PREFIX;
1314 #ifndef STANDARD_STARTFILE_PREFIX
1315 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1316 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1318 #ifdef MD_STARTFILE_PREFIX
1319 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1321 #ifdef MD_STARTFILE_PREFIX_1
1322 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1324 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1325 static char *standard_startfile_prefix_1 = "/lib/";
1326 static char *standard_startfile_prefix_2 = "/usr/lib/";
1328 #ifndef TOOLDIR_BASE_PREFIX
1329 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1331 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1332 static char *tooldir_prefix;
1334 /* Subdirectory to use for locating libraries. Set by
1335 set_multilib_dir based on the compilation options. */
1337 static char *multilib_dir;
1339 /* Clear out the vector of arguments (after a command is executed). */
1347 /* Add one argument to the vector at the end.
1348 This is done when a space is seen or at the end of the line.
1349 If DELETE_ALWAYS is nonzero, the arg is a filename
1350 and the file should be deleted eventually.
1351 If DELETE_FAILURE is nonzero, the arg is a filename
1352 and the file should be deleted if this compilation fails. */
1355 store_arg (arg, delete_always, delete_failure)
1357 int delete_always, delete_failure;
1359 if (argbuf_index + 1 == argbuf_length)
1361 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1363 argbuf[argbuf_index++] = arg;
1364 argbuf[argbuf_index] = 0;
1366 if (delete_always || delete_failure)
1367 record_temp_file (arg, delete_always, delete_failure);
1370 /* Read compilation specs from a file named FILENAME,
1371 replacing the default ones.
1373 A suffix which starts with `*' is a definition for
1374 one of the machine-specific sub-specs. The "suffix" should be
1375 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1376 The corresponding spec is stored in asm_spec, etc.,
1377 rather than in the `compilers' vector.
1379 Anything invalid in the file is a fatal error. */
1382 read_specs (filename, main_p)
1388 struct stat statbuf;
1393 fprintf (stderr, "Reading specs from %s\n", filename);
1395 /* Open and stat the file. */
1396 desc = open (filename, O_RDONLY, 0);
1398 pfatal_with_name (filename);
1399 if (stat (filename, &statbuf) < 0)
1400 pfatal_with_name (filename);
1402 /* Read contents of file into BUFFER. */
1403 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1404 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1406 pfatal_with_name (filename);
1407 buffer[readlen] = 0;
1410 /* Scan BUFFER for specs, putting them in the vector. */
1416 char *in, *out, *p1, *p2, *p3;
1418 /* Advance P in BUFFER to the next nonblank nocomment line. */
1419 p = skip_whitespace (p);
1423 /* Is this a special command that starts with '%'? */
1424 /* Don't allow this for the main specs file, since it would
1425 encourage people to overwrite it. */
1426 if (*p == '%' && !main_p)
1429 while (*p && *p != '\n')
1432 p++; /* Skip '\n' */
1434 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1435 && (p1[sizeof "%include" - 1] == ' '
1436 || p1[sizeof "%include" - 1] == '\t'))
1440 p1 += sizeof ("%include");
1441 while (*p1 == ' ' || *p1 == '\t')
1444 if (*p1++ != '<' || p[-2] != '>')
1445 fatal ("specs %%include syntax malformed after %d characters",
1449 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1450 read_specs (new_filename ? new_filename : p1, FALSE);
1453 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1454 && (p1[sizeof "%include_noerr" - 1] == ' '
1455 || p1[sizeof "%include_noerr" - 1] == '\t'))
1459 p1 += sizeof "%include_noerr";
1460 while (*p1 == ' ' || *p1 == '\t') p1++;
1462 if (*p1++ != '<' || p[-2] != '>')
1463 fatal ("specs %%include syntax malformed after %d characters",
1467 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1469 read_specs (new_filename, FALSE);
1470 else if (verbose_flag)
1471 fprintf (stderr, "Could not find specs file %s\n", p1);
1474 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1475 && (p1[sizeof "%rename" - 1] == ' '
1476 || p1[sizeof "%rename" - 1] == '\t'))
1479 struct spec_list *sl;
1481 /* Get original name */
1482 p1 += sizeof "%rename";
1483 while (*p1 == ' ' || *p1 == '\t')
1486 if (! ISALPHA (*p1))
1487 fatal ("specs %%rename syntax malformed after %d characters",
1491 while (*p2 && !ISSPACE (*p2))
1494 if (*p2 != ' ' && *p2 != '\t')
1495 fatal ("specs %%rename syntax malformed after %d characters",
1500 while (*p2 == ' ' || *p2 == '\t')
1503 if (! ISALPHA (*p2))
1504 fatal ("specs %%rename syntax malformed after %d characters",
1507 /* Get new spec name */
1509 while (*p3 && !ISSPACE (*p3))
1513 fatal ("specs %%rename syntax malformed after %d characters",
1517 for (sl = specs; sl; sl = sl->next)
1518 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1522 fatal ("specs %s spec was not found to be renamed", p1);
1524 if (strcmp (p1, p2) == 0)
1529 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1531 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1535 set_spec (p2, *(sl->ptr_spec));
1537 free (*(sl->ptr_spec));
1539 *(sl->ptr_spec) = "";
1544 fatal ("specs unknown %% command after %d characters",
1548 /* Find the colon that should end the suffix. */
1550 while (*p1 && *p1 != ':' && *p1 != '\n')
1553 /* The colon shouldn't be missing. */
1555 fatal ("specs file malformed after %d characters", p1 - buffer);
1557 /* Skip back over trailing whitespace. */
1559 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1562 /* Copy the suffix to a string. */
1563 suffix = save_string (p, p2 - p);
1564 /* Find the next line. */
1565 p = skip_whitespace (p1 + 1);
1567 fatal ("specs file malformed after %d characters", p - buffer);
1570 /* Find next blank line. */
1571 while (*p1 && !(*p1 == '\n' && p1[1] == '\n'))
1574 /* Specs end at the blank line and do not include the newline. */
1575 spec = save_string (p, p1 - p);
1578 /* Delete backslash-newline sequences from the spec. */
1583 if (in[0] == '\\' && in[1] == '\n')
1585 else if (in[0] == '#')
1586 while (*in && *in != '\n')
1594 if (suffix[0] == '*')
1596 if (! strcmp (suffix, "*link_command"))
1597 link_command_spec = spec;
1599 set_spec (suffix + 1, spec);
1603 /* Add this pair to the vector. */
1605 = ((struct compiler *)
1606 xrealloc (compilers,
1607 (n_compilers + 2) * sizeof (struct compiler)));
1609 compilers[n_compilers].suffix = suffix;
1610 bzero ((char *) compilers[n_compilers].spec,
1611 sizeof compilers[n_compilers].spec);
1612 compilers[n_compilers].spec[0] = spec;
1614 bzero ((char *) &compilers[n_compilers],
1615 sizeof compilers[n_compilers]);
1619 link_command_spec = spec;
1622 if (link_command_spec == 0)
1623 fatal ("spec file has no spec for linking");
1626 /* Record the names of temporary files we tell compilers to write,
1627 and delete them at the end of the run. */
1629 /* This is the common prefix we use to make temp file names.
1630 It is chosen once for each run of this program.
1631 It is substituted into a spec by %g.
1632 Thus, all temp file names contain this prefix.
1633 In practice, all temp file names start with this prefix.
1635 This prefix comes from the envvar TMPDIR if it is defined;
1636 otherwise, from the P_tmpdir macro if that is defined;
1637 otherwise, in /usr/tmp or /tmp;
1638 or finally the current directory if all else fails. */
1640 static char *temp_filename;
1642 /* Length of the prefix. */
1644 static int temp_filename_length;
1646 /* Define the list of temporary files to delete. */
1651 struct temp_file *next;
1654 /* Queue of files to delete on success or failure of compilation. */
1655 static struct temp_file *always_delete_queue;
1656 /* Queue of files to delete on failure of compilation. */
1657 static struct temp_file *failure_delete_queue;
1659 /* Record FILENAME as a file to be deleted automatically.
1660 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1661 otherwise delete it in any case.
1662 FAIL_DELETE nonzero means delete it if a compilation step fails;
1663 otherwise delete it in any case. */
1666 record_temp_file (filename, always_delete, fail_delete)
1671 register char *name;
1672 name = xmalloc (strlen (filename) + 1);
1673 strcpy (name, filename);
1677 register struct temp_file *temp;
1678 for (temp = always_delete_queue; temp; temp = temp->next)
1679 if (! strcmp (name, temp->name))
1682 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1683 temp->next = always_delete_queue;
1685 always_delete_queue = temp;
1692 register struct temp_file *temp;
1693 for (temp = failure_delete_queue; temp; temp = temp->next)
1694 if (! strcmp (name, temp->name))
1697 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1698 temp->next = failure_delete_queue;
1700 failure_delete_queue = temp;
1706 /* Delete all the temporary files whose names we previously recorded. */
1709 delete_if_ordinary (name)
1716 printf ("Delete %s? (y or n) ", name);
1720 while ((c = getchar ()) != '\n' && c != EOF)
1723 if (i == 'y' || i == 'Y')
1725 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1726 if (unlink (name) < 0)
1728 perror_with_name (name);
1732 delete_temp_files ()
1734 register struct temp_file *temp;
1736 for (temp = always_delete_queue; temp; temp = temp->next)
1737 delete_if_ordinary (temp->name);
1738 always_delete_queue = 0;
1741 /* Delete all the files to be deleted on error. */
1744 delete_failure_queue ()
1746 register struct temp_file *temp;
1748 for (temp = failure_delete_queue; temp; temp = temp->next)
1749 delete_if_ordinary (temp->name);
1753 clear_failure_queue ()
1755 failure_delete_queue = 0;
1758 /* Routine to add variables to the environment. We do this to pass
1759 the pathname of the gcc driver, and the directories search to the
1760 collect2 program, which is being run as ld. This way, we can be
1761 sure of executing the right compiler when collect2 wants to build
1762 constructors and destructors. Since the environment variables we
1763 use come from an obstack, we don't have to worry about allocating
1772 #ifndef VMS /* nor about VMS */
1774 extern char **environ;
1775 char **old_environ = environ;
1779 int str_len = strlen (str);
1783 while ((ch = *p++) != '\0' && ch != '=')
1789 /* Search for replacing an existing environment variable, and
1790 count the number of total environment variables. */
1791 for (envp = old_environ; *envp; envp++)
1794 if (!strncmp (str, *envp, name_len))
1801 /* Add a new environment variable */
1802 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1804 bcopy ((char *) old_environ, (char *) (environ + 1),
1805 sizeof (char *) * (num_envs+1));
1810 #endif /* HAVE_PUTENV */
1813 /* Build a list of search directories from PATHS.
1814 PREFIX is a string to prepend to the list.
1815 If CHECK_DIR_P is non-zero we ensure the directory exists.
1816 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1817 It is also used by the --print-search-dirs flag. */
1820 build_search_list (paths, prefix, check_dir_p)
1821 struct path_prefix *paths;
1825 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1827 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1828 int first_time = TRUE;
1829 struct prefix_list *pprefix;
1831 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1833 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1835 int len = strlen (pprefix->prefix);
1839 || is_directory (pprefix->prefix, machine_suffix, 0)))
1842 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1845 obstack_grow (&collect_obstack, pprefix->prefix, len);
1846 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1849 if (just_machine_suffix
1850 && pprefix->require_machine_suffix == 2
1852 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1855 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1858 obstack_grow (&collect_obstack, pprefix->prefix, len);
1859 obstack_grow (&collect_obstack, just_machine_suffix,
1863 if (! pprefix->require_machine_suffix)
1866 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1869 obstack_grow (&collect_obstack, pprefix->prefix, len);
1873 obstack_1grow (&collect_obstack, '\0');
1874 return obstack_finish (&collect_obstack);
1877 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1881 putenv_from_prefixes (paths, env_var)
1882 struct path_prefix *paths;
1885 putenv (build_search_list (paths, env_var, 1));
1888 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1889 access to check permissions.
1890 Return 0 if not found, otherwise return its name, allocated with malloc. */
1893 find_a_file (pprefix, name, mode)
1894 struct path_prefix *pprefix;
1899 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1900 struct prefix_list *pl;
1901 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1904 len += strlen (machine_suffix);
1906 temp = xmalloc (len);
1908 /* Determine the filename to execute (special case for absolute paths). */
1910 if (*name == '/' || *name == DIR_SEPARATOR
1911 /* Check for disk name on MS-DOS-based systems. */
1912 || (DIR_SEPARATOR == '\\' && name[1] == ':'
1913 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
1915 if (access (name, mode))
1917 strcpy (temp, name);
1922 for (pl = pprefix->plist; pl; pl = pl->next)
1926 /* Some systems have a suffix for executable files.
1927 So try appending that first. */
1928 if (file_suffix[0] != 0)
1930 strcpy (temp, pl->prefix);
1931 strcat (temp, machine_suffix);
1932 strcat (temp, name);
1933 strcat (temp, file_suffix);
1934 if (access (temp, mode) == 0)
1936 if (pl->used_flag_ptr != 0)
1937 *pl->used_flag_ptr = 1;
1942 /* Now try just the name. */
1943 strcpy (temp, pl->prefix);
1944 strcat (temp, machine_suffix);
1945 strcat (temp, name);
1946 if (access (temp, mode) == 0)
1948 if (pl->used_flag_ptr != 0)
1949 *pl->used_flag_ptr = 1;
1954 /* Certain prefixes are tried with just the machine type,
1955 not the version. This is used for finding as, ld, etc. */
1956 if (just_machine_suffix && pl->require_machine_suffix == 2)
1958 /* Some systems have a suffix for executable files.
1959 So try appending that first. */
1960 if (file_suffix[0] != 0)
1962 strcpy (temp, pl->prefix);
1963 strcat (temp, just_machine_suffix);
1964 strcat (temp, name);
1965 strcat (temp, file_suffix);
1966 if (access (temp, mode) == 0)
1968 if (pl->used_flag_ptr != 0)
1969 *pl->used_flag_ptr = 1;
1974 strcpy (temp, pl->prefix);
1975 strcat (temp, just_machine_suffix);
1976 strcat (temp, name);
1977 if (access (temp, mode) == 0)
1979 if (pl->used_flag_ptr != 0)
1980 *pl->used_flag_ptr = 1;
1985 /* Certain prefixes can't be used without the machine suffix
1986 when the machine or version is explicitly specified. */
1987 if (! pl->require_machine_suffix)
1989 /* Some systems have a suffix for executable files.
1990 So try appending that first. */
1991 if (file_suffix[0] != 0)
1993 strcpy (temp, pl->prefix);
1994 strcat (temp, name);
1995 strcat (temp, file_suffix);
1996 if (access (temp, mode) == 0)
1998 if (pl->used_flag_ptr != 0)
1999 *pl->used_flag_ptr = 1;
2004 strcpy (temp, pl->prefix);
2005 strcat (temp, name);
2006 if (access (temp, mode) == 0)
2008 if (pl->used_flag_ptr != 0)
2009 *pl->used_flag_ptr = 1;
2019 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2020 at the start of the list, otherwise it goes at the end.
2022 If WARN is nonzero, we will warn if no file is found
2023 through this prefix. WARN should point to an int
2024 which will be set to 1 if this entry is used.
2026 COMPONENT is the value to be passed to update_path.
2028 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2029 the complete value of machine_suffix.
2030 2 means try both machine_suffix and just_machine_suffix. */
2033 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2034 struct path_prefix *pprefix;
2038 int require_machine_suffix;
2041 struct prefix_list *pl, **prev;
2044 if (! first && pprefix->plist)
2046 for (pl = pprefix->plist; pl->next; pl = pl->next)
2051 prev = &pprefix->plist;
2053 /* Keep track of the longest prefix */
2055 prefix = update_path (prefix, component);
2056 len = strlen (prefix);
2057 if (len > pprefix->max_len)
2058 pprefix->max_len = len;
2060 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2061 pl->prefix = save_string (prefix, len);
2062 pl->require_machine_suffix = require_machine_suffix;
2063 pl->used_flag_ptr = warn;
2070 pl->next = (struct prefix_list *) 0;
2074 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2077 unused_prefix_warnings (pprefix)
2078 struct path_prefix *pprefix;
2080 struct prefix_list *pl = pprefix->plist;
2084 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2086 if (pl->require_machine_suffix && machine_suffix)
2087 error ("file path prefix `%s%s' never used", pl->prefix,
2090 error ("file path prefix `%s' never used", pl->prefix);
2092 /* Prevent duplicate warnings. */
2093 *pl->used_flag_ptr = 1;
2101 /* Execute the command specified by the arguments on the current line of spec.
2102 When using pipes, this includes several piped-together commands
2103 with `|' between them.
2105 Return 0 if successful, -1 if failed. */
2111 int n_commands; /* # of command. */
2115 char *prog; /* program name. */
2116 char **argv; /* vector of args. */
2117 int pid; /* pid of process for this command. */
2120 struct command *commands; /* each command buffer with above info. */
2122 /* Count # of piped commands. */
2123 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2124 if (strcmp (argbuf[i], "|") == 0)
2127 /* Get storage for each command. */
2129 = (struct command *) alloca (n_commands * sizeof (struct command));
2131 /* Split argbuf into its separate piped processes,
2132 and record info about each one.
2133 Also search for the programs that are to be run. */
2135 commands[0].prog = argbuf[0]; /* first command. */
2136 commands[0].argv = &argbuf[0];
2137 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2140 commands[0].argv[0] = string;
2142 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2143 if (strcmp (argbuf[i], "|") == 0)
2144 { /* each command. */
2145 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2146 fatal ("-pipe not supported");
2148 argbuf[i] = 0; /* termination of command args. */
2149 commands[n_commands].prog = argbuf[i + 1];
2150 commands[n_commands].argv = &argbuf[i + 1];
2151 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2153 commands[n_commands].argv[0] = string;
2157 argbuf[argbuf_index] = 0;
2159 /* If -v, print what we are about to do, and maybe query. */
2163 /* Print each piped command as a separate line. */
2164 for (i = 0; i < n_commands ; i++)
2168 for (j = commands[i].argv; *j; j++)
2169 fprintf (stderr, " %s", *j);
2171 /* Print a pipe symbol after all but the last command. */
2172 if (i + 1 != n_commands)
2173 fprintf (stderr, " |");
2174 fprintf (stderr, "\n");
2178 fprintf (stderr, "\nGo ahead? (y or n) ");
2182 while (getchar () != '\n')
2185 if (i != 'y' && i != 'Y')
2190 /* Run each piped subprocess. */
2192 for (i = 0; i < n_commands; i++)
2194 char *errmsg_fmt, *errmsg_arg;
2195 char *string = commands[i].argv[0];
2197 commands[i].pid = pexecute (string, commands[i].argv,
2198 programname, temp_filename,
2199 &errmsg_fmt, &errmsg_arg,
2200 ((i == 0 ? PEXECUTE_FIRST : 0)
2201 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2202 | (string == commands[i].prog
2203 ? PEXECUTE_SEARCH : 0)
2204 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2206 if (commands[i].pid == -1)
2207 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2209 if (string != commands[i].prog)
2215 /* Wait for all the subprocesses to finish.
2216 We don't care what order they finish in;
2217 we know that N_COMMANDS waits will get them all.
2218 Ignore subprocesses that we don't know about,
2219 since they can be spawned by the process that exec'ed us. */
2224 for (i = 0; i < n_commands; )
2230 pid = pwait (commands[i].pid, &status, 0);
2234 for (j = 0; j < n_commands; j++)
2235 if (commands[j].pid == pid)
2240 if (WIFSIGNALED (status))
2242 fatal ("Internal compiler error: program %s got fatal signal %d",
2243 commands[j].prog, WTERMSIG (status));
2247 else if (WIFEXITED (status)
2248 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2258 /* Find all the switches given to us
2259 and make a vector describing them.
2260 The elements of the vector are strings, one per switch given.
2261 If a switch uses following arguments, then the `part1' field
2262 is the switch itself and the `args' field
2263 is a null-terminated vector containing the following arguments.
2264 The `live_cond' field is 1 if the switch is true in a conditional spec,
2265 -1 if false (overridden by a later switch), and is initialized to zero.
2266 The `valid' field is nonzero if any spec has looked at this switch;
2267 if it remains zero at the end of the run, it must be meaningless. */
2277 static struct switchstr *switches;
2279 static int n_switches;
2287 /* Also a vector of input files specified. */
2289 static struct infile *infiles;
2291 static int n_infiles;
2293 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2294 we can tell if there were any user supplied any files or libraries. */
2296 static int added_libraries;
2298 /* And a vector of corresponding output files is made up later. */
2300 static char **outfiles;
2302 /* Used to track if none of the -B paths are used. */
2305 /* Used to track if standard path isn't used and -b or -V is specified. */
2306 static int warn_std;
2308 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2309 static int *warn_std_ptr = 0;
2312 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2314 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2315 is true if we should look for an executable suffix as well. */
2318 convert_filename (name, do_exe)
2323 int len = strlen (name);
2325 #ifdef HAVE_OBJECT_SUFFIX
2326 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2328 && name[len - 2] == '.'
2329 && name[len - 1] == 'o')
2331 obstack_grow (&obstack, name, len - 2);
2332 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2333 name = obstack_finish (&obstack);
2337 #ifdef HAVE_EXECUTABLE_SUFFIX
2338 /* If there is no filetype, make it the executable suffix (which includes
2339 the "."). But don't get confused if we have just "-o". */
2340 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2343 for (i = len - 1; i >= 0; i--)
2344 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2347 for (i++; i < len; i++)
2351 obstack_grow (&obstack, name, len);
2352 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2353 name = obstack_finish (&obstack);
2360 /* Create the vector `switches' and its contents.
2361 Store its length in `n_switches'. */
2364 process_command (argc, argv)
2370 char *spec_lang = 0;
2371 int last_language_n_infiles;
2374 int lang_n_infiles = 0;
2376 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2380 added_libraries = 0;
2382 /* Figure compiler version from version string. */
2384 compiler_version = save_string (version_string, strlen (version_string));
2385 for (temp = compiler_version; *temp; ++temp)
2394 /* Set up the default search paths. */
2396 if (gcc_exec_prefix)
2398 int len = strlen (gcc_exec_prefix);
2399 if (len > sizeof ("/lib/gcc-lib/")-1
2400 && (gcc_exec_prefix[len-1] == '/'
2401 || gcc_exec_prefix[len-1] == DIR_SEPARATOR))
2403 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2404 if ((*temp == '/' || *temp == DIR_SEPARATOR)
2405 && strncmp (temp+1, "lib", 3) == 0
2406 && (temp[4] == '/' || temp[4] == DIR_SEPARATOR)
2407 && strncmp (temp+5, "gcc-lib", 7) == 0)
2408 len -= sizeof ("/lib/gcc-lib/") - 1;
2411 set_std_prefix (gcc_exec_prefix, len);
2412 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2413 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2416 /* COMPILER_PATH and LIBRARY_PATH have values
2417 that are lists of directory names with colons. */
2419 GET_ENVIRONMENT (temp, "COMPILER_PATH");
2422 char *startp, *endp;
2423 char *nstore = (char *) alloca (strlen (temp) + 3);
2425 startp = endp = temp;
2428 if (*endp == PATH_SEPARATOR || *endp == 0)
2430 strncpy (nstore, startp, endp-startp);
2432 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2433 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2435 nstore[endp-startp] = DIR_SEPARATOR;
2436 nstore[endp-startp+1] = 0;
2439 nstore[endp-startp] = 0;
2440 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2441 add_prefix (&include_prefixes,
2442 concat (nstore, "include", NULL_PTR),
2446 endp = startp = endp + 1;
2453 GET_ENVIRONMENT (temp, "LIBRARY_PATH");
2454 if (temp && *cross_compile == '0')
2456 char *startp, *endp;
2457 char *nstore = (char *) alloca (strlen (temp) + 3);
2459 startp = endp = temp;
2462 if (*endp == PATH_SEPARATOR || *endp == 0)
2464 strncpy (nstore, startp, endp-startp);
2466 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2467 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2469 nstore[endp-startp] = DIR_SEPARATOR;
2470 nstore[endp-startp+1] = 0;
2473 nstore[endp-startp] = 0;
2474 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2478 endp = startp = endp + 1;
2485 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2486 GET_ENVIRONMENT (temp, "LPATH");
2487 if (temp && *cross_compile == '0')
2489 char *startp, *endp;
2490 char *nstore = (char *) alloca (strlen (temp) + 3);
2492 startp = endp = temp;
2495 if (*endp == PATH_SEPARATOR || *endp == 0)
2497 strncpy (nstore, startp, endp-startp);
2499 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2500 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2502 nstore[endp-startp] = DIR_SEPARATOR;
2503 nstore[endp-startp+1] = 0;
2506 nstore[endp-startp] = 0;
2507 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2511 endp = startp = endp + 1;
2518 /* Convert new-style -- options to old-style. */
2519 translate_options (&argc, &argv);
2521 #ifdef LANG_SPECIFIC_DRIVER
2522 /* Do language-specific adjustment/addition of flags. */
2523 lang_specific_driver (fatal, &argc, &argv, &added_libraries);
2526 /* Scan argv twice. Here, the first time, just count how many switches
2527 there will be in their vector, and how many input files in theirs.
2528 Here we also parse the switches that cc itself uses (e.g. -v). */
2530 for (i = 1; i < argc; i++)
2532 if (! strcmp (argv[i], "-dumpspecs"))
2534 struct spec_list *sl;
2536 for (sl = specs; sl; sl = sl->next)
2537 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2540 else if (! strcmp (argv[i], "-dumpversion"))
2542 printf ("%s\n", spec_version);
2545 else if (! strcmp (argv[i], "-dumpmachine"))
2547 printf ("%s\n", spec_machine);
2550 else if (! strcmp (argv[i], "-print-search-dirs"))
2551 print_search_dirs = 1;
2552 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2553 print_file_name = "libgcc.a";
2554 else if (! strncmp (argv[i], "-print-file-name=", 17))
2555 print_file_name = argv[i] + 17;
2556 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2557 print_prog_name = argv[i] + 17;
2558 else if (! strcmp (argv[i], "-print-multi-lib"))
2559 print_multi_lib = 1;
2560 else if (! strcmp (argv[i], "-print-multi-directory"))
2561 print_multi_directory = 1;
2562 else if (! strncmp (argv[i], "-Wa,", 4))
2565 /* Pass the rest of this option to the assembler. */
2567 n_assembler_options++;
2568 if (!assembler_options)
2570 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2573 = (char **) xrealloc (assembler_options,
2574 n_assembler_options * sizeof (char **));
2576 /* Split the argument at commas. */
2578 for (j = 4; argv[i][j]; j++)
2579 if (argv[i][j] == ',')
2581 assembler_options[n_assembler_options - 1]
2582 = save_string (argv[i] + prev, j - prev);
2583 n_assembler_options++;
2585 = (char **) xrealloc (assembler_options,
2586 n_assembler_options * sizeof (char **));
2589 /* Record the part after the last comma. */
2590 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2592 else if (! strncmp (argv[i], "-Wp,", 4))
2595 /* Pass the rest of this option to the preprocessor. */
2597 n_preprocessor_options++;
2598 if (!preprocessor_options)
2599 preprocessor_options
2600 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2602 preprocessor_options
2603 = (char **) xrealloc (preprocessor_options,
2604 n_preprocessor_options * sizeof (char **));
2606 /* Split the argument at commas. */
2608 for (j = 4; argv[i][j]; j++)
2609 if (argv[i][j] == ',')
2611 preprocessor_options[n_preprocessor_options - 1]
2612 = save_string (argv[i] + prev, j - prev);
2613 n_preprocessor_options++;
2614 preprocessor_options
2615 = (char **) xrealloc (preprocessor_options,
2616 n_preprocessor_options * sizeof (char **));
2619 /* Record the part after the last comma. */
2620 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2622 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2623 /* The +e options to the C++ front-end. */
2625 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2628 /* Split the argument at commas. */
2629 for (j = 3; argv[i][j]; j++)
2630 n_infiles += (argv[i][j] == ',');
2632 else if (strcmp (argv[i], "-Xlinker") == 0)
2635 fatal ("argument to `-Xlinker' is missing");
2640 else if (strncmp (argv[i], "-l", 2) == 0)
2642 else if (strcmp (argv[i], "-save-temps") == 0)
2644 save_temps_flag = 1;
2647 else if (strcmp (argv[i], "-specs") == 0)
2649 struct user_specs *user = (struct user_specs *)
2650 xmalloc (sizeof (struct user_specs));
2652 fatal ("argument to `-specs' is missing");
2654 user->next = (struct user_specs *)0;
2655 user->filename = argv[i];
2656 if (user_specs_tail)
2657 user_specs_tail->next = user;
2659 user_specs_head = user;
2660 user_specs_tail = user;
2662 else if (strncmp (argv[i], "-specs=", 7) == 0)
2664 struct user_specs *user = (struct user_specs *)
2665 xmalloc (sizeof (struct user_specs));
2666 if (strlen (argv[i]) == 7)
2667 fatal ("argument to `-specs=' is missing");
2669 user->next = (struct user_specs *)0;
2670 user->filename = argv[i]+7;
2671 if (user_specs_tail)
2672 user_specs_tail->next = user;
2674 user_specs_head = user;
2675 user_specs_tail = user;
2677 else if (argv[i][0] == '-' && argv[i][1] != 0)
2679 register char *p = &argv[i][1];
2680 register int c = *p;
2686 if (p[1] == 0 && i + 1 == argc)
2687 fatal ("argument to `-b' is missing");
2689 spec_machine = argv[++i];
2691 spec_machine = p + 1;
2693 warn_std_ptr = &warn_std;
2699 if (p[1] == 0 && i + 1 == argc)
2700 fatal ("argument to `-B' is missing");
2705 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2706 add_prefix (&startfile_prefixes, value, NULL_PTR,
2708 add_prefix (&include_prefixes, concat (value, "include",
2710 NULL_PTR, 1, 0, NULL_PTR);
2712 /* As a kludge, if the arg is "[foo/]stageN/", just add
2713 "[foo/]include" to the include prefix. */
2715 int len = strlen (value);
2718 && (value[len - 8] == '/'
2719 || value[len - 8] == DIR_SEPARATOR)))
2720 && strncmp (value + len - 7, "stage", 5) == 0
2721 && ISDIGIT (value[len - 2])
2722 && (value[len - 1] == '/'
2723 || value[len - 1] == DIR_SEPARATOR))
2726 add_prefix (&include_prefixes, "include", NULL_PTR,
2730 char *string = xmalloc (len + 1);
2731 strncpy (string, value, len-7);
2732 strcpy (string+len-7, "include");
2733 add_prefix (&include_prefixes, string, NULL_PTR,
2742 case 'v': /* Print our subcommands and print versions. */
2744 /* If they do anything other than exactly `-v', don't set
2745 verbose_flag; rather, continue on to give the error. */
2753 if (p[1] == 0 && i + 1 == argc)
2754 fatal ("argument to `-V' is missing");
2756 spec_version = argv[++i];
2758 spec_version = p + 1;
2759 compiler_version = spec_version;
2760 warn_std_ptr = &warn_std;
2762 /* Validate the version number. Use the same checks
2763 done when inserting it into a spec.
2765 The format of the version string is
2766 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2768 char *v = compiler_version;
2770 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2771 while (! ISDIGIT (*v))
2774 if (v > compiler_version && v[-1] != '-')
2775 fatal ("invalid version number format");
2777 /* Set V after the first period. */
2778 while (ISDIGIT (*v))
2782 fatal ("invalid version number format");
2785 while (ISDIGIT (*v))
2788 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
2789 fatal ("invalid version number format");
2804 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2805 argv[i] = convert_filename (argv[i], 1);
2807 argv[i+1] = convert_filename (argv[i+1], 1);
2815 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2816 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2817 else if (WORD_SWITCH_TAKES_ARG (p))
2818 i += WORD_SWITCH_TAKES_ARG (p);
2828 if (have_c && have_o && lang_n_infiles > 1)
2829 fatal ("cannot specify -o with -c or -S and multiple compilations");
2831 /* Set up the search paths before we go looking for config files. */
2833 /* These come before the md prefixes so that we will find gcc's subcommands
2834 (such as cpp) rather than those of the host system. */
2835 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2836 as well as trying the machine and the version. */
2838 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
2839 0, 2, warn_std_ptr);
2840 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
2841 0, 2, warn_std_ptr);
2844 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
2845 0, 1, warn_std_ptr);
2846 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
2847 0, 1, warn_std_ptr);
2849 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2850 dir_separator_str, NULL_PTR);
2852 /* If tooldir is relative, base it on exec_prefixes. A relative
2853 tooldir lets us move the installed tree as a unit.
2855 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2856 directories, so that we can search both the user specified directory
2857 and the standard place. */
2859 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2861 if (gcc_exec_prefix)
2863 char *gcc_exec_tooldir_prefix
2864 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2865 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2867 add_prefix (&exec_prefixes,
2868 concat (gcc_exec_tooldir_prefix, "bin",
2869 dir_separator_str, NULL_PTR),
2870 NULL_PTR, 0, 0, NULL_PTR);
2871 add_prefix (&startfile_prefixes,
2872 concat (gcc_exec_tooldir_prefix, "lib",
2873 dir_separator_str, NULL_PTR),
2874 NULL_PTR, 0, 0, NULL_PTR);
2877 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2878 dir_separator_str, spec_version,
2879 dir_separator_str, tooldir_prefix, NULL_PTR);
2882 add_prefix (&exec_prefixes,
2883 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2884 "BINUTILS", 0, 0, NULL_PTR);
2885 add_prefix (&startfile_prefixes,
2886 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2887 "BINUTILS", 0, 0, NULL_PTR);
2889 /* More prefixes are enabled in main, after we read the specs file
2890 and determine whether this is cross-compilation or not. */
2893 /* Then create the space for the vectors and scan again. */
2895 switches = ((struct switchstr *)
2896 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2897 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2900 last_language_n_infiles = -1;
2902 /* This, time, copy the text of each switch and store a pointer
2903 to the copy in the vector of switches.
2904 Store all the infiles in their vector. */
2906 for (i = 1; i < argc; i++)
2908 /* Just skip the switches that were handled by the preceding loop. */
2909 if (! strncmp (argv[i], "-Wa,", 4))
2911 else if (! strncmp (argv[i], "-Wp,", 4))
2913 else if (! strcmp (argv[i], "-print-search-dirs"))
2915 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2917 else if (! strncmp (argv[i], "-print-file-name=", 17))
2919 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2921 else if (! strcmp (argv[i], "-print-multi-lib"))
2923 else if (! strcmp (argv[i], "-print-multi-directory"))
2925 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2927 /* Compensate for the +e options to the C++ front-end;
2928 they're there simply for cfront call-compatibility. We do
2929 some magic in default_compilers to pass them down properly.
2930 Note we deliberately start at the `+' here, to avoid passing
2931 -e0 or -e1 down into the linker. */
2932 switches[n_switches].part1 = &argv[i][0];
2933 switches[n_switches].args = 0;
2934 switches[n_switches].live_cond = 0;
2935 switches[n_switches].valid = 0;
2938 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2941 /* Split the argument at commas. */
2943 for (j = 4; argv[i][j]; j++)
2944 if (argv[i][j] == ',')
2946 infiles[n_infiles].language = "*";
2947 infiles[n_infiles++].name
2948 = save_string (argv[i] + prev, j - prev);
2951 /* Record the part after the last comma. */
2952 infiles[n_infiles].language = "*";
2953 infiles[n_infiles++].name = argv[i] + prev;
2955 else if (strcmp (argv[i], "-Xlinker") == 0)
2957 infiles[n_infiles].language = "*";
2958 infiles[n_infiles++].name = argv[++i];
2960 else if (strncmp (argv[i], "-l", 2) == 0)
2962 infiles[n_infiles].language = "*";
2963 infiles[n_infiles++].name = argv[i];
2965 else if (strcmp (argv[i], "-specs") == 0)
2967 else if (strncmp (argv[i], "-specs=", 7) == 0)
2969 /* -save-temps overrides -pipe, so that temp files are produced */
2970 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
2971 error ("Warning: -pipe ignored since -save-temps specified");
2972 else if (argv[i][0] == '-' && argv[i][1] != 0)
2974 register char *p = &argv[i][1];
2975 register int c = *p;
2979 if (p[1] == 0 && i + 1 == argc)
2980 fatal ("argument to `-x' is missing");
2982 spec_lang = argv[++i];
2985 if (! strcmp (spec_lang, "none"))
2986 /* Suppress the warning if -xnone comes after the last input
2987 file, because alternate command interfaces like g++ might
2988 find it useful to place -xnone after each input file. */
2991 last_language_n_infiles = n_infiles;
2994 switches[n_switches].part1 = p;
2995 /* Deal with option arguments in separate argv elements. */
2996 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2997 || WORD_SWITCH_TAKES_ARG (p))
3000 int n_args = WORD_SWITCH_TAKES_ARG (p);
3004 /* Count only the option arguments in separate argv elements. */
3005 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3007 if (i + n_args >= argc)
3008 fatal ("argument to `-%s' is missing", p);
3009 switches[n_switches].args
3010 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3012 switches[n_switches].args[j++] = argv[++i];
3013 /* Null-terminate the vector. */
3014 switches[n_switches].args[j] = 0;
3016 else if (index (switches_need_spaces, c))
3018 /* On some systems, ld cannot handle some options without
3019 a space. So split the option from its argument. */
3020 char *part1 = (char *) xmalloc (2);
3024 switches[n_switches].part1 = part1;
3025 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3026 switches[n_switches].args[0] = xmalloc (strlen (p));
3027 strcpy (switches[n_switches].args[0], &p[1]);
3028 switches[n_switches].args[1] = 0;
3031 switches[n_switches].args = 0;
3033 switches[n_switches].live_cond = 0;
3034 switches[n_switches].valid = 0;
3035 /* This is always valid, since gcc.c itself understands it. */
3036 if (!strcmp (p, "save-temps"))
3037 switches[n_switches].valid = 1;
3040 char ch = switches[n_switches].part1[0];
3041 if (ch == 'V' || ch == 'b' || ch == 'B')
3042 switches[n_switches].valid = 1;
3048 #ifdef HAVE_OBJECT_SUFFIX
3049 argv[i] = convert_filename (argv[i], 0);
3052 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3054 perror_with_name (argv[i]);
3059 infiles[n_infiles].language = spec_lang;
3060 infiles[n_infiles++].name = argv[i];
3065 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3066 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3068 switches[n_switches].part1 = 0;
3069 infiles[n_infiles].name = 0;
3072 /* Process a spec string, accumulating and running commands. */
3074 /* These variables describe the input file name.
3075 input_file_number is the index on outfiles of this file,
3076 so that the output file name can be stored for later use by %o.
3077 input_basename is the start of the part of the input file
3078 sans all directory names, and basename_length is the number
3079 of characters starting there excluding the suffix .c or whatever. */
3081 static char *input_filename;
3082 static int input_file_number;
3083 static size_t input_filename_length;
3084 static int basename_length;
3085 static char *input_basename;
3086 static char *input_suffix;
3088 /* These are variables used within do_spec and do_spec_1. */
3090 /* Nonzero if an arg has been started and not yet terminated
3091 (with space, tab or newline). */
3092 static int arg_going;
3094 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3095 is a temporary file name. */
3096 static int delete_this_arg;
3098 /* Nonzero means %w has been seen; the next arg to be terminated
3099 is the output file name of this compilation. */
3100 static int this_is_output_file;
3102 /* Nonzero means %s has been seen; the next arg to be terminated
3103 is the name of a library file and we should try the standard
3104 search dirs for it. */
3105 static int this_is_library_file;
3107 /* Nonzero means that the input of this command is coming from a pipe. */
3108 static int input_from_pipe;
3110 /* Process the spec SPEC and run the commands specified therein.
3111 Returns 0 if the spec is successfully processed; -1 if failed. */
3121 delete_this_arg = 0;
3122 this_is_output_file = 0;
3123 this_is_library_file = 0;
3124 input_from_pipe = 0;
3126 value = do_spec_1 (spec, 0, NULL_PTR);
3128 /* Force out any unfinished command.
3129 If -pipe, this forces out the last command if it ended in `|'. */
3132 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3135 if (argbuf_index > 0)
3142 /* Process the sub-spec SPEC as a portion of a larger spec.
3143 This is like processing a whole spec except that we do
3144 not initialize at the beginning and we do not supply a
3145 newline by default at the end.
3146 INSWITCH nonzero means don't process %-sequences in SPEC;
3147 in this case, % is treated as an ordinary character.
3148 This is used while substituting switches.
3149 INSWITCH nonzero also causes SPC not to terminate an argument.
3151 Value is zero unless a line was finished
3152 and the command on that line reported an error. */
3155 do_spec_1 (spec, inswitch, soft_matched_part)
3158 char *soft_matched_part;
3160 register char *p = spec;
3167 /* If substituting a switch, treat all chars like letters.
3168 Otherwise, NL, SPC, TAB and % are special. */
3169 switch (inswitch ? 'a' : c)
3172 /* End of line: finish any pending argument,
3173 then run the pending command if one has been started. */
3176 obstack_1grow (&obstack, 0);
3177 string = obstack_finish (&obstack);
3178 if (this_is_library_file)
3179 string = find_file (string);
3180 store_arg (string, delete_this_arg, this_is_output_file);
3181 if (this_is_output_file)
3182 outfiles[input_file_number] = string;
3186 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3188 for (i = 0; i < n_switches; i++)
3189 if (!strcmp (switches[i].part1, "pipe"))
3192 /* A `|' before the newline means use a pipe here,
3193 but only if -pipe was specified.
3194 Otherwise, execute now and don't pass the `|' as an arg. */
3197 input_from_pipe = 1;
3198 switches[i].valid = 1;
3205 if (argbuf_index > 0)
3211 /* Reinitialize for a new command, and for a new argument. */
3214 delete_this_arg = 0;
3215 this_is_output_file = 0;
3216 this_is_library_file = 0;
3217 input_from_pipe = 0;
3221 /* End any pending argument. */
3224 obstack_1grow (&obstack, 0);
3225 string = obstack_finish (&obstack);
3226 if (this_is_library_file)
3227 string = find_file (string);
3228 store_arg (string, delete_this_arg, this_is_output_file);
3229 if (this_is_output_file)
3230 outfiles[input_file_number] = string;
3234 obstack_1grow (&obstack, c);
3240 /* Space or tab ends an argument if one is pending. */
3243 obstack_1grow (&obstack, 0);
3244 string = obstack_finish (&obstack);
3245 if (this_is_library_file)
3246 string = find_file (string);
3247 store_arg (string, delete_this_arg, this_is_output_file);
3248 if (this_is_output_file)
3249 outfiles[input_file_number] = string;
3251 /* Reinitialize for a new argument. */
3253 delete_this_arg = 0;
3254 this_is_output_file = 0;
3255 this_is_library_file = 0;
3262 fatal ("Invalid specification! Bug in cc.");
3265 obstack_grow (&obstack, input_basename, basename_length);
3270 delete_this_arg = 2;
3273 /* Dump out the directories specified with LIBRARY_PATH,
3274 followed by the absolute directories
3275 that we search for startfiles. */
3278 struct prefix_list *pl = startfile_prefixes.plist;
3279 size_t bufsize = 100;
3280 char *buffer = (char *) xmalloc (bufsize);
3283 for (; pl; pl = pl->next)
3285 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3286 /* Used on systems which record the specified -L dirs
3287 and use them to search for dynamic linking. */
3288 /* Relative directories always come from -B,
3289 and it is better not to use them for searching
3290 at run time. In particular, stage1 loses */
3291 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3294 /* Try subdirectory if there is one. */
3295 if (multilib_dir != NULL)
3299 if (strlen (pl->prefix) + strlen (machine_suffix)
3301 bufsize = (strlen (pl->prefix)
3302 + strlen (machine_suffix)) * 2 + 1;
3303 buffer = (char *) xrealloc (buffer, bufsize);
3304 strcpy (buffer, pl->prefix);
3305 strcat (buffer, machine_suffix);
3306 if (is_directory (buffer, multilib_dir, 1))
3308 do_spec_1 ("-L", 0, NULL_PTR);
3309 #ifdef SPACE_AFTER_L_OPTION
3310 do_spec_1 (" ", 0, NULL_PTR);
3312 do_spec_1 (buffer, 1, NULL_PTR);
3313 do_spec_1 (multilib_dir, 1, NULL_PTR);
3314 /* Make this a separate argument. */
3315 do_spec_1 (" ", 0, NULL_PTR);
3318 if (!pl->require_machine_suffix)
3320 if (is_directory (pl->prefix, multilib_dir, 1))
3322 do_spec_1 ("-L", 0, NULL_PTR);
3323 #ifdef SPACE_AFTER_L_OPTION
3324 do_spec_1 (" ", 0, NULL_PTR);
3326 do_spec_1 (pl->prefix, 1, NULL_PTR);
3327 do_spec_1 (multilib_dir, 1, NULL_PTR);
3328 /* Make this a separate argument. */
3329 do_spec_1 (" ", 0, NULL_PTR);
3335 if (is_directory (pl->prefix, machine_suffix, 1))
3337 do_spec_1 ("-L", 0, NULL_PTR);
3338 #ifdef SPACE_AFTER_L_OPTION
3339 do_spec_1 (" ", 0, NULL_PTR);
3341 do_spec_1 (pl->prefix, 1, NULL_PTR);
3342 /* Remove slash from machine_suffix. */
3343 if (strlen (machine_suffix) >= bufsize)
3344 bufsize = strlen (machine_suffix) * 2 + 1;
3345 buffer = (char *) xrealloc (buffer, bufsize);
3346 strcpy (buffer, machine_suffix);
3347 idx = strlen (buffer);
3348 if (buffer[idx - 1] == '/'
3349 || buffer[idx - 1] == DIR_SEPARATOR)
3350 buffer[idx - 1] = 0;
3351 do_spec_1 (buffer, 1, NULL_PTR);
3352 /* Make this a separate argument. */
3353 do_spec_1 (" ", 0, NULL_PTR);
3356 if (!pl->require_machine_suffix)
3358 if (is_directory (pl->prefix, "", 1))
3360 do_spec_1 ("-L", 0, NULL_PTR);
3361 #ifdef SPACE_AFTER_L_OPTION
3362 do_spec_1 (" ", 0, NULL_PTR);
3364 /* Remove slash from pl->prefix. */
3365 if (strlen (pl->prefix) >= bufsize)
3366 bufsize = strlen (pl->prefix) * 2 + 1;
3367 buffer = (char *) xrealloc (buffer, bufsize);
3368 strcpy (buffer, pl->prefix);
3369 idx = strlen (buffer);
3370 if (buffer[idx - 1] == '/'
3371 || buffer[idx - 1] == DIR_SEPARATOR)
3372 buffer[idx - 1] = 0;
3373 do_spec_1 (buffer, 1, NULL_PTR);
3374 /* Make this a separate argument. */
3375 do_spec_1 (" ", 0, NULL_PTR);
3384 /* {...:%efoo} means report an error with `foo' as error message
3385 and don't execute any more commands for this file. */
3389 while (*p != 0 && *p != '\n') p++;
3390 buf = (char *) alloca (p - q + 1);
3391 strncpy (buf, q, p - q);
3401 if (save_temps_flag)
3403 obstack_grow (&obstack, input_basename, basename_length);
3404 delete_this_arg = 0;
3408 #ifdef MKTEMP_EACH_FILE
3409 /* ??? This has a problem: the total number of
3410 values mktemp can return is limited.
3411 That matters for the names of object files.
3412 In 2.4, do something about that. */
3413 struct temp_name *t;
3415 while (*p == '.' || ISALPHA (*p)
3416 || (p[0] == '%' && p[1] == 'O'))
3419 /* See if we already have an association of %g/%u/%U and
3421 for (t = temp_names; t; t = t->next)
3422 if (t->length == p - suffix
3423 && strncmp (t->suffix, suffix, p - suffix) == 0
3424 && t->unique == (c != 'g'))
3427 /* Make a new association if needed. %u requires one. */
3428 if (t == 0 || c == 'u')
3432 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3433 t->next = temp_names;
3436 t->length = p - suffix;
3437 t->suffix = save_string (suffix, p - suffix);
3438 t->unique = (c != 'g');
3439 temp_filename = choose_temp_base ();
3440 temp_filename_length = strlen (temp_filename);
3441 t->filename = temp_filename;
3442 t->filename_length = temp_filename_length;
3445 obstack_grow (&obstack, t->filename, t->filename_length);
3446 delete_this_arg = 1;
3448 obstack_grow (&obstack, temp_filename, temp_filename_length);
3449 if (c == 'u' || c == 'U')
3455 sprintf (buff, "%d", unique);
3456 obstack_grow (&obstack, buff, strlen (buff));
3459 delete_this_arg = 1;
3465 obstack_grow (&obstack, input_filename, input_filename_length);
3471 struct prefix_list *pl = include_prefixes.plist;
3473 if (gcc_exec_prefix)
3475 do_spec_1 ("-iprefix", 1, NULL_PTR);
3476 /* Make this a separate argument. */
3477 do_spec_1 (" ", 0, NULL_PTR);
3478 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3479 do_spec_1 (" ", 0, NULL_PTR);
3482 for (; pl; pl = pl->next)
3484 do_spec_1 ("-isystem", 1, NULL_PTR);
3485 /* Make this a separate argument. */
3486 do_spec_1 (" ", 0, NULL_PTR);
3487 do_spec_1 (pl->prefix, 1, NULL_PTR);
3488 do_spec_1 (" ", 0, NULL_PTR);
3494 for (i = 0; i < n_infiles; i++)
3495 store_arg (outfiles[i], 0, 0);
3499 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3504 this_is_library_file = 1;
3508 this_is_output_file = 1;
3513 int cur_index = argbuf_index;
3514 /* Handle the {...} following the %W. */
3517 p = handle_braces (p + 1);
3520 /* If any args were output, mark the last one for deletion
3522 if (argbuf_index != cur_index)
3523 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3527 /* %x{OPTION} records OPTION for %X to output. */
3533 /* Skip past the option value and make a copy. */
3538 string = save_string (p1 + 1, p - p1 - 2);
3540 /* See if we already recorded this option. */
3541 for (i = 0; i < n_linker_options; i++)
3542 if (! strcmp (string, linker_options[i]))
3548 /* This option is new; add it. */
3550 if (!linker_options)
3552 = (char **) xmalloc (n_linker_options * sizeof (char **));
3555 = (char **) xrealloc (linker_options,
3556 n_linker_options * sizeof (char **));
3558 linker_options[n_linker_options - 1] = string;
3562 /* Dump out the options accumulated previously using %x. */
3564 for (i = 0; i < n_linker_options; i++)
3566 do_spec_1 (linker_options[i], 1, NULL_PTR);
3567 /* Make each accumulated option a separate argument. */
3568 do_spec_1 (" ", 0, NULL_PTR);
3572 /* Dump out the options accumulated previously using -Wa,. */
3574 for (i = 0; i < n_assembler_options; i++)
3576 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3577 /* Make each accumulated option a separate argument. */
3578 do_spec_1 (" ", 0, NULL_PTR);
3582 /* Dump out the options accumulated previously using -Wp,. */
3584 for (i = 0; i < n_preprocessor_options; i++)
3586 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3587 /* Make each accumulated option a separate argument. */
3588 do_spec_1 (" ", 0, NULL_PTR);
3592 /* Here are digits and numbers that just process
3593 a certain constant string as a spec. */
3596 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3602 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3608 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3614 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3620 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3626 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3632 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3638 value = do_spec_1 (link_spec, 0, NULL_PTR);
3644 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3650 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3657 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3661 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3665 if (! strncmp (y, "-D", 2))
3666 /* Copy the whole option. */
3667 while (*y && *y != ' ' && *y != '\t')
3669 else if (*y == ' ' || *y == '\t')
3670 /* Copy whitespace to the result. */
3672 /* Don't copy other options. */
3679 value = do_spec_1 (buf, 0, NULL_PTR);
3687 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3691 /* Copy all of CPP_PREDEFINES into BUF,
3692 but put __ after every -D and at the end of each arg. */
3696 if (! strncmp (y, "-D", 2))
3704 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3706 /* Stick __ at front of macro name. */
3709 /* Arrange to stick __ at the end as well. */
3713 /* Copy the macro name. */
3714 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3723 /* Copy the value given, if any. */
3724 while (*y && *y != ' ' && *y != '\t')
3727 else if (*y == ' ' || *y == '\t')
3728 /* Copy whitespace to the result. */
3730 /* Don't copy -A options */
3736 /* Copy all of CPP_PREDEFINES into BUF,
3737 but put __ after every -D. */
3741 if (! strncmp (y, "-D", 2))
3746 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3748 /* Stick -D__ at front of macro name. */
3754 /* Copy the macro name. */
3755 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3758 /* Copy the value given, if any. */
3759 while (*y && *y != ' ' && *y != '\t')
3764 /* Do not copy this macro - we have just done it before */
3765 while (*y && *y != ' ' && *y != '\t')
3769 else if (*y == ' ' || *y == '\t')
3770 /* Copy whitespace to the result. */
3772 /* Don't copy -A options */
3778 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3782 if (! strncmp (y, "-A", 2))
3783 /* Copy the whole option. */
3784 while (*y && *y != ' ' && *y != '\t')
3786 else if (*y == ' ' || *y == '\t')
3787 /* Copy whitespace to the result. */
3789 /* Don't copy other options. */
3796 value = do_spec_1 (buf, 0, NULL_PTR);
3803 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3808 /* Here we define characters other than letters and digits. */
3811 p = handle_braces (p);
3817 obstack_1grow (&obstack, '%');
3821 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3822 do_spec_1 (" ", 0, NULL_PTR);
3825 /* Process a string found as the value of a spec given by name.
3826 This feature allows individual machine descriptions
3827 to add and use their own specs.
3828 %[...] modifies -D options the way %P does;
3829 %(...) uses the spec unmodified. */
3834 struct spec_list *sl;
3837 /* The string after the S/P is the name of a spec that is to be
3839 while (*p && *p != ')' && *p != ']')
3842 /* See if it's in the list */
3843 for (len = p - name, sl = specs; sl; sl = sl->next)
3844 if (sl->name_len == len && !strncmp (sl->name, name, len))
3846 name = *(sl->ptr_spec);
3848 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
3849 c, sl->name, (c == '(') ? ')' : ']', name);
3858 value = do_spec_1 (name, 0, NULL_PTR);
3864 char *x = (char *) alloca (strlen (name) * 2 + 1);
3869 /* Copy all of NAME into BUF, but put __ after
3870 every -D and at the end of each arg, */
3873 if (! strncmp (y, "-D", 2))
3883 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3884 || *y == '}' || *y == 0))
3897 value = do_spec_1 (buf, 0, NULL_PTR);
3903 /* Discard the closing paren or bracket. */
3911 int c1 = *p++; /* Select first or second version number. */
3912 char *v = compiler_version;
3915 /* The format of the version string is
3916 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3918 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3919 while (! ISDIGIT (*v))
3921 if (v > compiler_version && v[-1] != '-')
3924 /* If desired, advance to second version number. */
3927 /* Set V after the first period. */
3928 while (ISDIGIT (*v))
3935 /* Set Q at the next period or at the end. */
3937 while (ISDIGIT (*q))
3939 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3942 /* Put that part into the command. */
3943 obstack_grow (&obstack, v, q - v);
3949 if (input_from_pipe)
3950 do_spec_1 ("-", 0, NULL_PTR);
3959 /* Backslash: treat next character as ordinary. */
3964 /* Ordinary character: put it into the current argument. */
3965 obstack_1grow (&obstack, c);
3969 return 0; /* End of string */
3972 /* Return 0 if we call do_spec_1 and that returns -1. */
3983 int include_blanks = 1;
3986 /* A '^' after the open-brace means to not give blanks before args. */
3987 include_blanks = 0, ++p;
3990 /* A `|' after the open-brace means,
3991 if the test fails, output a single minus sign rather than nothing.
3992 This is used in %{|!pipe:...}. */
3996 /* A `!' after the open-brace negates the condition:
3997 succeed if the specified switch is not present. */
4001 /* A `.' after the open-brace means test against the current suffix. */
4011 while (*p != ':' && *p != '}') p++;
4014 register int count = 1;
4032 int found = (input_suffix != 0
4033 && strlen (input_suffix) == p - filter
4034 && strncmp (input_suffix, filter, p - filter) == 0);
4040 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4045 else if (p[-1] == '*' && p[0] == '}')
4047 /* Substitute all matching switches as separate args. */
4050 for (i = 0; i < n_switches; i++)
4051 if (!strncmp (switches[i].part1, filter, p - filter)
4052 && check_live_switch (i, p - filter))
4053 give_switch (i, 0, include_blanks);
4057 /* Test for presence of the specified switch. */
4061 /* If name specified ends in *, as in {x*:...},
4062 check for %* and handle that case. */
4063 if (p[-1] == '*' && !negate)
4068 /* First see whether we have %*. */
4072 if (*r == '%' && r[1] == '*')
4076 /* If we do, handle that case. */
4079 /* Substitute all matching switches as separate args.
4080 But do this by substituting for %*
4081 in the text that follows the colon. */
4083 unsigned hard_match_len = p - filter - 1;
4084 char *string = save_string (p + 1, q - p - 2);
4086 for (i = 0; i < n_switches; i++)
4087 if (!strncmp (switches[i].part1, filter, hard_match_len)
4088 && check_live_switch (i, -1))
4090 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4091 /* Pass any arguments this switch has. */
4092 give_switch (i, 1, 1);
4099 /* If name specified ends in *, as in {x*:...},
4100 check for presence of any switch name starting with x. */
4103 for (i = 0; i < n_switches; i++)
4105 unsigned hard_match_len = p - filter - 1;
4107 if (!strncmp (switches[i].part1, filter, hard_match_len)
4108 && check_live_switch (i, hard_match_len))
4114 /* Otherwise, check for presence of exact name specified. */
4117 for (i = 0; i < n_switches; i++)
4119 if (!strncmp (switches[i].part1, filter, p - filter)
4120 && switches[i].part1[p - filter] == 0
4121 && check_live_switch (i, -1))
4129 /* If it is as desired (present for %{s...}, absent for %{-s...})
4130 then substitute either the switch or the specified
4131 conditional text. */
4132 if (present != negate)
4136 give_switch (i, 0, include_blanks);
4140 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4146 /* Here if a %{|...} conditional fails: output a minus sign,
4147 which means "standard output" or "standard input". */
4148 do_spec_1 ("-", 0, NULL_PTR);
4155 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4156 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4157 spec, or -1 if either exact match or %* is used.
4159 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4160 whose value does not begin with "no-" is obsoleted by the same value
4161 with the "no-", similarly for a switch with the "no-" prefix. */
4164 check_live_switch (switchnum, prefix_length)
4168 char *name = switches[switchnum].part1;
4171 /* In the common case of {<at-most-one-letter>*}, a negating
4172 switch would always match, so ignore that case. We will just
4173 send the conflicting switches to the compiler phase. */
4174 if (prefix_length >= 0 && prefix_length <= 1)
4177 /* If we already processed this switch and determined if it was
4178 live or not, return our past determination. */
4179 if (switches[switchnum].live_cond != 0)
4180 return switches[switchnum].live_cond > 0;
4182 /* Now search for duplicate in a manner that depends on the name. */
4186 for (i = switchnum + 1; i < n_switches; i++)
4187 if (switches[i].part1[0] == 'O')
4189 switches[switchnum].valid = 1;
4190 switches[switchnum].live_cond = -1;
4195 case 'W': case 'f': case 'm':
4196 if (! strncmp (name + 1, "no-", 3))
4198 /* We have Xno-YYY, search for XYYY. */
4199 for (i = switchnum + 1; i < n_switches; i++)
4200 if (switches[i].part1[0] == name[0]
4201 && ! strcmp (&switches[i].part1[1], &name[4]))
4203 switches[switchnum].valid = 1;
4204 switches[switchnum].live_cond = -1;
4210 /* We have XYYY, search for Xno-YYY. */
4211 for (i = switchnum + 1; i < n_switches; i++)
4212 if (switches[i].part1[0] == name[0]
4213 && switches[i].part1[1] == 'n'
4214 && switches[i].part1[2] == 'o'
4215 && switches[i].part1[3] == '-'
4216 && !strcmp (&switches[i].part1[4], &name[1]))
4218 switches[switchnum].valid = 1;
4219 switches[switchnum].live_cond = -1;
4226 /* Otherwise the switch is live. */
4227 switches[switchnum].live_cond = 1;
4231 /* Pass a switch to the current accumulating command
4232 in the same form that we received it.
4233 SWITCHNUM identifies the switch; it is an index into
4234 the vector of switches gcc received, which is `switches'.
4235 This cannot fail since it never finishes a command line.
4237 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4239 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4243 give_switch (switchnum, omit_first_word, include_blanks)
4245 int omit_first_word;
4248 if (!omit_first_word)
4250 do_spec_1 ("-", 0, NULL_PTR);
4251 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4254 if (switches[switchnum].args != 0)
4257 for (p = switches[switchnum].args; *p; p++)
4260 do_spec_1 (" ", 0, NULL_PTR);
4261 do_spec_1 (*p, 1, NULL_PTR);
4265 do_spec_1 (" ", 0, NULL_PTR);
4266 switches[switchnum].valid = 1;
4269 /* Search for a file named NAME trying various prefixes including the
4270 user's -B prefix and some standard ones.
4271 Return the absolute file name found. If nothing is found, return NAME. */
4279 /* Try multilib_dir if it is defined. */
4280 if (multilib_dir != NULL)
4284 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4285 strcpy (try, multilib_dir);
4286 strcat (try, dir_separator_str);
4289 newname = find_a_file (&startfile_prefixes, try, R_OK);
4291 /* If we don't find it in the multi library dir, then fall
4292 through and look for it in the normal places. */
4293 if (newname != NULL)
4297 newname = find_a_file (&startfile_prefixes, name, R_OK);
4298 return newname ? newname : name;
4301 /* Determine whether a directory exists. If LINKER, return 0 for
4302 certain fixed names not needed by the linker. If not LINKER, it is
4303 only important to return 0 if the host machine has a small ARG_MAX
4307 is_directory (path1, path2, linker)
4312 int len1 = strlen (path1);
4313 int len2 = strlen (path2);
4314 char *path = (char *) alloca (3 + len1 + len2);
4318 #ifndef SMALL_ARG_MAX
4323 /* Construct the path from the two parts. Ensure the string ends with "/.".
4324 The resulting path will be a directory even if the given path is a
4326 bcopy (path1, path, len1);
4327 bcopy (path2, path + len1, len2);
4328 cp = path + len1 + len2;
4329 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4330 *cp++ = DIR_SEPARATOR;
4334 /* Exclude directories that the linker is known to search. */
4337 && strcmp (path, concat (dir_separator_str, "lib",
4338 dir_separator_str, ".", NULL_PTR)) == 0)
4340 && strcmp (path, concat (dir_separator_str, "usr",
4341 dir_separator_str, "lib",
4342 dir_separator_str, ".", NULL_PTR)) == 0)))
4345 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4348 /* On fatal signals, delete all the temporary files. */
4351 fatal_error (signum)
4354 signal (signum, SIG_DFL);
4355 delete_failure_queue ();
4356 delete_temp_files ();
4357 /* Get the same signal again, this time not handled,
4358 so its normal effect occurs. */
4359 kill (getpid (), signum);
4370 int linker_was_run = 0;
4371 char *explicit_link_files;
4374 struct user_specs *uptr;
4376 p = argv[0] + strlen (argv[0]);
4377 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4380 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4381 signal (SIGINT, fatal_error);
4383 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4384 signal (SIGHUP, fatal_error);
4386 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4387 signal (SIGTERM, fatal_error);
4389 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4390 signal (SIGPIPE, fatal_error);
4394 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4396 obstack_init (&obstack);
4398 /* Build multilib_select, et. al from the separate lines that make up each
4399 multilib selection. */
4401 char **q = multilib_raw;
4404 obstack_init (&multilib_obstack);
4405 while ((p = *q++) != (char *) 0)
4406 obstack_grow (&multilib_obstack, p, strlen (p));
4408 obstack_1grow (&multilib_obstack, 0);
4409 multilib_select = obstack_finish (&multilib_obstack);
4411 q = multilib_matches_raw;
4412 while ((p = *q++) != (char *) 0)
4413 obstack_grow (&multilib_obstack, p, strlen (p));
4415 obstack_1grow (&multilib_obstack, 0);
4416 multilib_matches = obstack_finish (&multilib_obstack);
4420 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4424 obstack_1grow (&multilib_obstack, ' ');
4425 obstack_grow (&multilib_obstack,
4426 multilib_defaults_raw[i],
4427 strlen (multilib_defaults_raw[i]));
4431 obstack_1grow (&multilib_obstack, 0);
4432 multilib_defaults = obstack_finish (&multilib_obstack);
4435 /* Set up to remember the pathname of gcc and any options
4436 needed for collect. We use argv[0] instead of programname because
4437 we need the complete pathname. */
4438 obstack_init (&collect_obstack);
4439 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4440 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4441 putenv (obstack_finish (&collect_obstack));
4443 #ifdef INIT_ENVIRONMENT
4444 /* Set up any other necessary machine specific environment variables. */
4445 putenv (INIT_ENVIRONMENT);
4448 /* Choose directory for temp files. */
4450 temp_filename = choose_temp_base ();
4451 temp_filename_length = strlen (temp_filename);
4453 /* Make a table of what switches there are (switches, n_switches).
4454 Make a table of specified input files (infiles, n_infiles).
4455 Decode switches that are handled locally. */
4457 process_command (argc, argv);
4462 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4464 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4465 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4468 for (i = 0; i < n_switches; i++)
4473 obstack_grow (&collect_obstack, " ", 1);
4476 obstack_grow (&collect_obstack, "'-", 2);
4477 q = switches[i].part1;
4478 while ((p = index (q,'\'')))
4480 obstack_grow (&collect_obstack, q, p-q);
4481 obstack_grow (&collect_obstack, "'\\''", 4);
4484 obstack_grow (&collect_obstack, q, strlen (q));
4485 obstack_grow (&collect_obstack, "'", 1);
4487 for (args = switches[i].args; args && *args; args++)
4489 obstack_grow (&collect_obstack, " '", 2);
4491 while ((p = index (q,'\'')))
4493 obstack_grow (&collect_obstack, q, p-q);
4494 obstack_grow (&collect_obstack, "'\\''", 4);
4497 obstack_grow (&collect_obstack, q, strlen (q));
4498 obstack_grow (&collect_obstack, "'", 1);
4501 obstack_grow (&collect_obstack, "\0", 1);
4502 putenv (obstack_finish (&collect_obstack));
4505 /* Initialize the vector of specs to just the default.
4506 This means one element containing 0s, as a terminator. */
4508 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4509 bcopy ((char *) default_compilers, (char *) compilers,
4510 sizeof default_compilers);
4511 n_compilers = n_default_compilers;
4513 /* Read specs from a file if there is one. */
4515 machine_suffix = concat (spec_machine, dir_separator_str,
4516 spec_version, dir_separator_str, NULL_PTR);
4517 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4519 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4520 /* Read the specs file unless it is a default one. */
4521 if (specs_file != 0 && strcmp (specs_file, "specs"))
4522 read_specs (specs_file, TRUE);
4526 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4527 for any override of as, ld and libraries. */
4528 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4529 + strlen (just_machine_suffix)
4530 + sizeof ("specs"));
4532 strcpy (specs_file, standard_exec_prefix);
4533 strcat (specs_file, just_machine_suffix);
4534 strcat (specs_file, "specs");
4535 if (access (specs_file, R_OK) == 0)
4536 read_specs (specs_file, TRUE);
4538 /* Process any user specified specs in the order given on the command
4540 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4542 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4543 read_specs (filename ? filename : uptr->filename, FALSE);
4546 /* If not cross-compiling, look for startfiles in the standard places. */
4547 /* The fact that these are done here, after reading the specs file,
4548 means that it cannot be found in these directories.
4549 But that's okay. It should never be there anyway. */
4550 if (*cross_compile == '0')
4552 #ifdef MD_EXEC_PREFIX
4553 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4554 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4557 #ifdef MD_STARTFILE_PREFIX
4558 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4562 #ifdef MD_STARTFILE_PREFIX_1
4563 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
4567 /* If standard_startfile_prefix is relative, base it on
4568 standard_exec_prefix. This lets us move the installed tree
4569 as a unit. If GCC_EXEC_PREFIX is defined, base
4570 standard_startfile_prefix on that as well. */
4571 if (*standard_startfile_prefix == '/'
4572 || *standard_startfile_prefix == DIR_SEPARATOR
4573 || *standard_startfile_prefix == '$'
4575 /* Check for disk name on MS-DOS-based systems. */
4576 || (standard_startfile_prefix[1] == ':'
4577 && (standard_startfile_prefix[2] == DIR_SEPARATOR
4578 || standard_startfile_prefix[2] == '/'))
4581 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
4585 if (gcc_exec_prefix)
4586 add_prefix (&startfile_prefixes,
4587 concat (gcc_exec_prefix, machine_suffix,
4588 standard_startfile_prefix, NULL_PTR),
4589 NULL_PTR, 0, 0, NULL_PTR);
4590 add_prefix (&startfile_prefixes,
4591 concat (standard_exec_prefix,
4593 standard_startfile_prefix, NULL_PTR),
4594 NULL_PTR, 0, 0, NULL_PTR);
4597 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
4598 "BINUTILS", 0, 0, NULL_PTR);
4599 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
4600 "BINUTILS", 0, 0, NULL_PTR);
4601 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4602 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
4607 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4608 add_prefix (&startfile_prefixes,
4609 concat (gcc_exec_prefix, machine_suffix,
4610 standard_startfile_prefix, NULL_PTR),
4611 "BINUTILS", 0, 0, NULL_PTR);
4614 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4615 if (gcc_exec_prefix)
4617 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4618 + strlen (spec_version)
4619 + strlen (spec_machine) + 3);
4620 strcpy (temp, gcc_exec_prefix);
4621 strcat (temp, spec_machine);
4622 strcat (temp, dir_separator_str);
4623 strcat (temp, spec_version);
4624 strcat (temp, dir_separator_str);
4625 gcc_exec_prefix = temp;
4628 /* Now we have the specs.
4629 Set the `valid' bits for switches that match anything in any spec. */
4631 validate_all_switches ();
4633 /* Now that we have the switches and the specs, set
4634 the subdirectory based on the options. */
4635 set_multilib_dir ();
4637 /* Warn about any switches that no pass was interested in. */
4639 for (i = 0; i < n_switches; i++)
4640 if (! switches[i].valid)
4641 error ("unrecognized option `-%s'", switches[i].part1);
4643 /* Obey some of the options. */
4645 if (print_search_dirs)
4647 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4648 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4649 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4653 if (print_file_name)
4655 printf ("%s\n", find_file (print_file_name));
4659 if (print_prog_name)
4661 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4662 printf ("%s\n", (newname ? newname : print_prog_name));
4666 if (print_multi_lib)
4668 print_multilib_info ();
4672 if (print_multi_directory)
4674 if (multilib_dir == NULL)
4677 printf ("%s\n", multilib_dir);
4685 /* compiler_version is truncated at the first space when initialized
4686 from version string, so truncate version_string at the first space
4687 before comparing. */
4688 for (n = 0; version_string[n]; n++)
4689 if (version_string[n] == ' ')
4692 if (! strncmp (version_string, compiler_version, n)
4693 && compiler_version[n] == 0)
4694 fprintf (stderr, "gcc version %s\n", version_string);
4696 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4697 version_string, compiler_version);
4703 if (n_infiles == added_libraries)
4704 fatal ("No input files");
4706 /* Make a place to record the compiler output file names
4707 that correspond to the input files. */
4709 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4710 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4712 /* Record which files were specified explicitly as link input. */
4714 explicit_link_files = xmalloc (n_infiles);
4715 bzero (explicit_link_files, n_infiles);
4717 for (i = 0; i < n_infiles; i++)
4719 register struct compiler *cp = 0;
4720 int this_file_error = 0;
4722 /* Tell do_spec what to substitute for %i. */
4724 input_filename = infiles[i].name;
4725 input_filename_length = strlen (input_filename);
4726 input_file_number = i;
4728 /* Use the same thing in %o, unless cp->spec says otherwise. */
4730 outfiles[i] = input_filename;
4732 /* Figure out which compiler from the file's suffix. */
4734 cp = lookup_compiler (infiles[i].name, input_filename_length,
4735 infiles[i].language);
4739 /* Ok, we found an applicable compiler. Run its spec. */
4740 /* First say how much of input_filename to substitute for %b */
4744 if (cp->spec[0][0] == '#')
4745 error ("%s: %s compiler not installed on this system",
4746 input_filename, &cp->spec[0][1]);
4748 input_basename = input_filename;
4749 for (p = input_filename; *p; p++)
4750 if (*p == '/' || *p == DIR_SEPARATOR)
4751 input_basename = p + 1;
4753 /* Find a suffix starting with the last period,
4754 and set basename_length to exclude that suffix. */
4755 basename_length = strlen (input_basename);
4756 p = input_basename + basename_length;
4757 while (p != input_basename && *p != '.') --p;
4758 if (*p == '.' && p != input_basename)
4760 basename_length = p - input_basename;
4761 input_suffix = p + 1;
4767 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4769 len += strlen (cp->spec[j]);
4771 p = (char *) xmalloc (len + 1);
4774 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4777 strcpy (p + len, cp->spec[j]);
4778 len += strlen (cp->spec[j]);
4781 value = do_spec (p);
4784 this_file_error = 1;
4787 /* If this file's name does not contain a recognized suffix,
4788 record it as explicit linker input. */
4791 explicit_link_files[i] = 1;
4793 /* Clear the delete-on-failure queue, deleting the files in it
4794 if this compilation failed. */
4796 if (this_file_error)
4798 delete_failure_queue ();
4801 /* If this compilation succeeded, don't delete those files later. */
4802 clear_failure_queue ();
4805 /* Run ld to link all the compiler output files. */
4807 if (error_count == 0)
4809 int tmp = execution_count;
4811 /* We'll use ld if we can't find collect2. */
4812 if (! strcmp (linker_name_spec, "collect2"))
4814 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
4816 linker_name_spec = "ld";
4818 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4820 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4821 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4823 value = do_spec (link_command_spec);
4826 linker_was_run = (tmp != execution_count);
4829 /* Warn if a -B option was specified but the prefix was never used. */
4830 unused_prefix_warnings (&exec_prefixes);
4831 unused_prefix_warnings (&startfile_prefixes);
4833 /* If options said don't run linker,
4834 complain about input files to be given to the linker. */
4836 if (! linker_was_run && error_count == 0)
4837 for (i = 0; i < n_infiles; i++)
4838 if (explicit_link_files[i])
4839 error ("%s: linker input file unused since linking not done",
4842 /* Delete some or all of the temporary files we made. */
4845 delete_failure_queue ();
4846 delete_temp_files ();
4848 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4853 /* Find the proper compilation spec for the file name NAME,
4854 whose length is LENGTH. LANGUAGE is the specified language,
4855 or 0 if this file is to be passed to the linker. */
4857 static struct compiler *
4858 lookup_compiler (name, length, language)
4863 struct compiler *cp;
4865 /* If this was specified by the user to be a linker input, indicate that. */
4866 if (language != 0 && language[0] == '*')
4869 /* Otherwise, look for the language, if one is spec'd. */
4872 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4873 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
4876 error ("language %s not recognized", language);
4880 /* Look for a suffix. */
4881 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4883 if (/* The suffix `-' matches only the file name `-'. */
4884 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4885 || (strlen (cp->suffix) < length
4886 /* See if the suffix matches the end of NAME. */
4888 && ((!strcmp (cp->suffix,
4889 name + length - strlen (cp->suffix))
4890 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
4891 && !strcasecmp (cp->suffix,
4892 name + length - strlen (cp->suffix)))
4894 && !strcmp (cp->suffix,
4895 name + length - strlen (cp->suffix))
4899 if (cp->spec[0][0] == '@')
4901 struct compiler *new;
4903 /* An alias entry maps a suffix to a language.
4904 Search for the language; pass 0 for NAME and LENGTH
4905 to avoid infinite recursion if language not found.
4906 Construct the new compiler spec. */
4907 language = cp->spec[0] + 1;
4908 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4909 new->suffix = cp->suffix;
4910 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4911 (char *) new->spec, sizeof new->spec);
4915 /* A non-alias entry: return it. */
4927 register char *value = (char *) malloc (size);
4929 fatal ("virtual memory exhausted");
4934 xrealloc (ptr, size)
4938 register char *value = (char *) realloc (ptr, size);
4940 fatal ("virtual memory exhausted");
4944 /* This function is based on the one in libiberty. */
4947 concat VPROTO((char *first, ...))
4949 register int length;
4950 register char *newstr;
4958 /* First compute the size of the result and get sufficient memory. */
4960 VA_START (args, first);
4962 first = va_arg (args, char *);
4970 length += strlen (arg);
4971 arg = va_arg (args, char *);
4974 newstr = (char *) xmalloc (length + 1);
4977 /* Now copy the individual pieces to the result string. */
4979 VA_START (args, first);
4981 first = va_arg (args, char *);
4990 arg = va_arg (args, char *);
4999 save_string (s, len)
5003 register char *result = xmalloc (len + 1);
5005 bcopy (s, result, len);
5011 pfatal_with_name (name)
5014 fatal ("%s: %s", name, my_strerror (errno));
5018 perror_with_name (name)
5021 error ("%s: %s", name, my_strerror (errno));
5025 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5029 int save_errno = errno;
5033 /* Space for trailing '\0' is in %s. */
5034 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5035 sprintf (msg, errmsg_fmt, errmsg_arg);
5039 fatal ("%s: %s", errmsg_fmt, my_strerror (save_errno));
5042 /* More 'friendly' abort that prints the line and file.
5043 config.h can #define abort fancy_abort if you like that sort of thing. */
5048 fatal ("Internal gcc abort.");
5053 /* Output an error message and exit */
5056 fatal VPROTO((char *format, ...))
5063 VA_START (ap, format);
5066 format = va_arg (ap, char *);
5069 fprintf (stderr, "%s: ", programname);
5070 vfprintf (stderr, format, ap);
5072 fprintf (stderr, "\n");
5073 delete_temp_files ();
5078 error VPROTO((char *format, ...))
5085 VA_START (ap, format);
5088 format = va_arg (ap, char *);
5091 fprintf (stderr, "%s: ", programname);
5092 vfprintf (stderr, format, ap);
5095 fprintf (stderr, "\n");
5098 #else /* not HAVE_VPRINTF */
5101 fatal (msg, arg1, arg2)
5102 char *msg, *arg1, *arg2;
5104 error (msg, arg1, arg2);
5105 delete_temp_files ();
5110 error (msg, arg1, arg2)
5111 char *msg, *arg1, *arg2;
5113 fprintf (stderr, "%s: ", programname);
5114 fprintf (stderr, msg, arg1, arg2);
5115 fprintf (stderr, "\n");
5118 #endif /* not HAVE_VPRINTF */
5122 validate_all_switches ()
5124 struct compiler *comp;
5127 struct spec_list *spec;
5129 for (comp = compilers; comp->spec[0]; comp++)
5132 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5136 if (c == '%' && *p == '{')
5137 /* We have a switch spec. */
5138 validate_switches (p + 1);
5142 /* look through the linked list of specs read from the specs file */
5143 for (spec = specs; spec ; spec = spec->next)
5145 p = *(spec->ptr_spec);
5147 if (c == '%' && *p == '{')
5148 /* We have a switch spec. */
5149 validate_switches (p + 1);
5152 p = link_command_spec;
5154 if (c == '%' && *p == '{')
5155 /* We have a switch spec. */
5156 validate_switches (p + 1);
5159 /* Look at the switch-name that comes after START
5160 and mark as valid all supplied switches that match it. */
5163 validate_switches (start)
5166 register char *p = start;
5181 while (*p != ':' && *p != '}') p++;
5185 else if (p[-1] == '*')
5187 /* Mark all matching switches as valid. */
5189 for (i = 0; i < n_switches; i++)
5190 if (!strncmp (switches[i].part1, filter, p - filter))
5191 switches[i].valid = 1;
5195 /* Mark an exact matching switch as valid. */
5196 for (i = 0; i < n_switches; i++)
5198 if (!strncmp (switches[i].part1, filter, p - filter)
5199 && switches[i].part1[p - filter] == 0)
5200 switches[i].valid = 1;
5205 /* Check whether a particular argument was used. The first time we
5206 canonicalize the switches to keep only the ones we care about. */
5220 static struct mswitchstr *mswitches;
5221 static int n_mswitches;
5226 struct mswitchstr *matches;
5230 /* Break multilib_matches into the component strings of string and replacement
5232 for (q = multilib_matches; *q != '\0'; q++)
5236 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5238 q = multilib_matches;
5249 matches[i].len = q - matches[i].str;
5251 matches[i].replace = ++q;
5252 while (*q != ';' && *q != '\0')
5258 matches[i].rep_len = q - matches[i].replace;
5266 /* Now build a list of the replacement string for switches that we care
5267 about. Make sure we allocate at least one entry. This prevents
5268 xmalloc from calling fatal, and prevents us from re-executing this
5271 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5272 * (n_switches ? n_switches : 1));
5273 for (i = 0; i < n_switches; i++)
5275 int xlen = strlen (switches[i].part1);
5276 for (j = 0; j < cnt; j++)
5277 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5279 mswitches[n_mswitches].str = matches[j].replace;
5280 mswitches[n_mswitches].len = matches[j].rep_len;
5281 mswitches[n_mswitches].replace = (char *)0;
5282 mswitches[n_mswitches].rep_len = 0;
5289 for (i = 0; i < n_mswitches; i++)
5290 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5297 default_arg (p, len)
5303 for (start = multilib_defaults; *start != '\0'; start = end+1)
5305 while (*start == ' ' || *start == '\t')
5311 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5314 if ((end - start) == len && strncmp (p, start, len) == 0)
5324 /* Work out the subdirectory to use based on the
5325 options. The format of multilib_select is a list of elements.
5326 Each element is a subdirectory name followed by a list of options
5327 followed by a semicolon. gcc will consider each line in turn. If
5328 none of the options beginning with an exclamation point are
5329 present, and all of the other options are present, that
5330 subdirectory will be used. */
5335 char *p = multilib_select;
5337 char *this_path, *this_arg;
5343 /* Ignore newlines. */
5350 /* Get the initial path. */
5358 this_path_len = p - this_path;
5360 /* Check the arguments. */
5375 while (*p != ' ' && *p != ';')
5382 if (*this_arg != '!')
5390 /* If this is a default argument, we can just ignore it.
5391 This is true even if this_arg begins with '!'. Beginning
5392 with '!' does not mean that this argument is necessarily
5393 inappropriate for this library: it merely means that
5394 there is a more specific library which uses this
5395 argument. If this argument is a default, we need not
5396 consider that more specific library. */
5397 if (! default_arg (this_arg, p - this_arg))
5399 ok = used_arg (this_arg, p - this_arg);
5410 if (this_path_len != 1
5411 || this_path[0] != '.')
5413 multilib_dir = xmalloc (this_path_len + 1);
5414 strncpy (multilib_dir, this_path, this_path_len);
5415 multilib_dir[this_path_len] = '\0';
5424 /* Print out the multiple library subdirectory selection
5425 information. This prints out a series of lines. Each line looks
5426 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5427 required. Only the desired options are printed out, the negative
5428 matches. The options are print without a leading dash. There are
5429 no spaces to make it easy to use the information in the shell.
5430 Each subdirectory is printed only once. This assumes the ordering
5431 generated by the genmultilib script. */
5434 print_multilib_info ()
5436 char *p = multilib_select;
5437 char *last_path = 0, *this_path;
5439 int last_path_len = 0;
5443 /* Ignore newlines. */
5450 /* Get the initial path. */
5459 /* If this is a duplicate, skip it. */
5460 skip = (last_path != 0 && p - this_path == last_path_len
5461 && ! strncmp (last_path, this_path, last_path_len));
5463 last_path = this_path;
5464 last_path_len = p - this_path;
5466 /* If this directory requires any default arguments, we can skip
5467 it. We will already have printed a directory identical to
5468 this one which does not require that default argument. */
5486 while (*q != ' ' && *q != ';')
5494 && default_arg (arg, q - arg))
5509 for (p1 = last_path; p1 < p; p1++)
5528 use_arg = *p != '!';
5533 while (*p != ' ' && *p != ';')
5548 /* If there are extra options, print them now */
5549 if (multilib_extra && *multilib_extra)
5551 int print_at = TRUE;
5554 for (q = multilib_extra; *q != '\0'; q++)