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 extern 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 *));
249 static void fatal PVPROTO((char *, ...));
250 static void error PVPROTO((char *, ...));
256 #ifdef LANG_SPECIFIC_DRIVER
257 /* Called before processing to change/add/remove arguments. */
258 extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
260 /* Called before linking. Returns 0 on success and -1 on failure. */
261 extern int lang_specific_pre_link ();
263 /* Number of extra output files that lang_specific_pre_link may generate. */
264 extern int lang_specific_extra_outfiles;
267 /* Specs are strings containing lines, each of which (if not blank)
268 is made up of a program name, and arguments separated by spaces.
269 The program name must be exact and start from root, since no path
270 is searched and it is unreliable to depend on the current working directory.
271 Redirection of input or output is not supported; the subprograms must
272 accept filenames saying what files to read and write.
274 In addition, the specs can contain %-sequences to substitute variable text
275 or for conditional text. Here is a table of all defined %-sequences.
276 Note that spaces are not generated automatically around the results of
277 expanding these sequences; therefore, you can concatenate them together
278 or with constant text in a single argument.
280 %% substitute one % into the program name or argument.
281 %i substitute the name of the input file being processed.
282 %b substitute the basename of the input file being processed.
283 This is the substring up to (and not including) the last period
284 and not including the directory.
285 %g substitute the temporary-file-name-base. This is a string chosen
286 once per compilation. Different temporary file names are made by
287 concatenation of constant strings on the end, as in `%g.s'.
288 %g also has the same effect of %d.
289 %u like %g, but make the temporary file name unique.
290 %U returns the last file name generated with %u.
291 %d marks the argument containing or following the %d as a
292 temporary file name, so that that file will be deleted if CC exits
293 successfully. Unlike %g, this contributes no text to the argument.
294 %w marks the argument containing or following the %w as the
295 "output file" of this compilation. This puts the argument
296 into the sequence of arguments that %o will substitute later.
298 like %{...} but mark last argument supplied within
299 as a file to be deleted on failure.
300 %o substitutes the names of all the output files, with spaces
301 automatically placed around them. You should write spaces
302 around the %o as well or the results are undefined.
303 %o is for use in the specs for running the linker.
304 Input files whose names have no recognized suffix are not compiled
305 at all, but they are included among the output files, so they will
307 %O substitutes the suffix for object files.
308 %p substitutes the standard macro predefinitions for the
309 current target machine. Use this when running cpp.
310 %P like %p, but puts `__' before and after the name of each macro.
311 (Except macros that already have __.)
313 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
314 %s current argument is the name of a library or startup file of some sort.
315 Search for that file in a standard list of directories
316 and substitute the full name found.
317 %eSTR Print STR as an error message. STR is terminated by a newline.
318 Use this when inconsistent options are detected.
319 %x{OPTION} Accumulate an option for %X.
320 %X Output the accumulated linker options specified by compilations.
321 %Y Output the accumulated assembler options specified by compilations.
322 %Z Output the accumulated preprocessor options specified by compilations.
323 %v1 Substitute the major version number of GCC.
324 (For version 2.5.n, this is 2.)
325 %v2 Substitute the minor version number of GCC.
326 (For version 2.5.n, this is 5.)
327 %a process ASM_SPEC as a spec.
328 This allows config.h to specify part of the spec for running as.
329 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
330 used here. This can be used to run a post-processor after the
331 assembler has done it's job.
332 %D Dump out a -L option for each directory in startfile_prefixes.
333 If multilib_dir is set, extra entries are generated with it affixed.
334 %l process LINK_SPEC as a spec.
335 %L process LIB_SPEC as a spec.
336 %G process LIBGCC_SPEC as a spec.
337 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
338 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
339 %c process SIGNED_CHAR_SPEC as a spec.
340 %C process CPP_SPEC as a spec. A capital C is actually used here.
341 %1 process CC1_SPEC as a spec.
342 %2 process CC1PLUS_SPEC as a spec.
343 %| output "-" if the input for the current command is coming from a pipe.
344 %* substitute the variable part of a matched option. (See below.)
345 Note that each comma in the substituted string is replaced by
347 %{S} substitutes the -S switch, if that switch was given to CC.
348 If that switch was not specified, this substitutes nothing.
349 Here S is a metasyntactic variable.
350 %{S*} substitutes all the switches specified to CC whose names start
351 with -S. This is used for -o, -D, -I, etc; switches that take
352 arguments. CC considers `-o foo' as being one switch whose
353 name starts with `o'. %{o*} would substitute this text,
354 including the space; thus, two arguments would be generated.
355 %{^S*} likewise, but don't put a blank between a switch and any args.
356 %{S*:X} substitutes X if one or more switches whose names start with -S are
357 specified to CC. Note that the tail part of the -S option
358 (i.e. the part matched by the `*') will be substituted for each
359 occurrence of %* within X.
360 %{S:X} substitutes X, but only if the -S switch was given to CC.
361 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
362 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
363 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
364 %{.S:X} substitutes X, but only if processing a file with suffix S.
365 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
366 %(Spec) processes a specification defined in a specs file as *Spec:
367 %[Spec] as above, but put __ around -D arguments
369 The conditional text X in a %{S:X} or %{!S:X} construct may contain
370 other nested % constructs or spaces, or even newlines. They are
371 processed as usual, as described above.
373 The -O, -f, -m, and -W switches are handled specifically in these
374 constructs. If another value of -O or the negated form of a -f, -m, or
375 -W switch is found later in the command line, the earlier switch
376 value is ignored, except with {S*} where S is just one letter; this
377 passes all matching options.
379 The character | is used to indicate that a command should be piped to
380 the following command, but only if -pipe is specified.
382 Note that it is built into CC which switches take arguments and which
383 do not. You might think it would be useful to generalize this to
384 allow each compiler's spec to say which switches take arguments. But
385 this cannot be done in a consistent fashion. CC cannot even decide
386 which input files have been specified without knowing which switches
387 take arguments, and it must know which input files to compile in order
388 to tell which compilers to run.
390 CC also knows implicitly that arguments starting in `-l' are to be
391 treated as compiler output files, and passed to the linker in their
392 proper position among the other output files. */
394 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
396 /* config.h can define ASM_SPEC to provide extra args to the assembler
397 or extra switch-translations. */
402 /* config.h can define ASM_FINAL_SPEC to run a post processor after
403 the assembler has run. */
404 #ifndef ASM_FINAL_SPEC
405 #define ASM_FINAL_SPEC ""
408 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
409 or extra switch-translations. */
414 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
415 or extra switch-translations. */
420 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
421 or extra switch-translations. */
423 #define CC1PLUS_SPEC ""
426 /* config.h can define LINK_SPEC to provide extra args to the linker
427 or extra switch-translations. */
432 /* config.h can define LIB_SPEC to override the default libraries. */
434 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
437 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
440 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
441 /* Have gcc do the search for libgcc.a. */
442 #define LIBGCC_SPEC "libgcc.a%s"
444 #define LIBGCC_SPEC "-lgcc"
448 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
449 #ifndef STARTFILE_SPEC
450 #define STARTFILE_SPEC \
451 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
454 /* config.h can define SWITCHES_NEED_SPACES to control which options
455 require spaces between the option and the argument. */
456 #ifndef SWITCHES_NEED_SPACES
457 #define SWITCHES_NEED_SPACES ""
460 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
462 #define ENDFILE_SPEC ""
465 /* This spec is used for telling cpp whether char is signed or not. */
466 #ifndef SIGNED_CHAR_SPEC
467 /* Use #if rather than ?:
468 because MIPS C compiler rejects like ?: in initializers. */
469 #if DEFAULT_SIGNED_CHAR
470 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
472 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
477 #define LINKER_NAME "collect2"
480 static char *cpp_spec = CPP_SPEC;
481 static char *cpp_predefines = CPP_PREDEFINES;
482 static char *cc1_spec = CC1_SPEC;
483 static char *cc1plus_spec = CC1PLUS_SPEC;
484 static char *signed_char_spec = SIGNED_CHAR_SPEC;
485 static char *asm_spec = ASM_SPEC;
486 static char *asm_final_spec = ASM_FINAL_SPEC;
487 static char *link_spec = LINK_SPEC;
488 static char *lib_spec = LIB_SPEC;
489 static char *libgcc_spec = LIBGCC_SPEC;
490 static char *endfile_spec = ENDFILE_SPEC;
491 static char *startfile_spec = STARTFILE_SPEC;
492 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
493 static char *linker_name_spec = LINKER_NAME;
495 /* Some compilers have limits on line lengths, and the multilib_select
496 and/or multilib_matches strings can be very long, so we build them at
498 static struct obstack multilib_obstack;
499 static char *multilib_select;
500 static char *multilib_matches;
501 static char *multilib_defaults;
502 #include "multilib.h"
504 /* Check whether a particular argument is a default argument. */
506 #ifndef MULTILIB_DEFAULTS
507 #define MULTILIB_DEFAULTS { "" }
510 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
513 struct user_specs *next;
517 static struct user_specs *user_specs_head, *user_specs_tail;
519 /* This defines which switch letters take arguments. */
521 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
522 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
523 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
524 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
525 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
526 || (CHAR) == 'B' || (CHAR) == 'b')
528 #ifndef SWITCH_TAKES_ARG
529 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
532 /* This defines which multi-letter switches take arguments. */
534 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
535 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
536 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
537 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
538 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
539 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
540 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
542 #ifndef WORD_SWITCH_TAKES_ARG
543 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
547 #ifdef HAVE_EXECUTABLE_SUFFIX
548 /* This defines which switches stop a full compilation. */
549 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
550 ((CHAR) == 'c' || (CHAR) == 'S')
552 #ifndef SWITCH_CURTAILS_COMPILATION
553 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
554 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
558 /* Record the mapping from file suffixes for compilation specs. */
562 char *suffix; /* Use this compiler for input files
563 whose names end in this suffix. */
565 char *spec[4]; /* To use this compiler, concatenate these
566 specs and pass to do_spec. */
569 /* Pointer to a vector of `struct compiler' that gives the spec for
570 compiling a file, based on its suffix.
571 A file that does not end in any of these suffixes will be passed
572 unchanged to the loader and nothing else will be done to it.
574 An entry containing two 0s is used to terminate the vector.
576 If multiple entries match a file, the last matching one is used. */
578 static struct compiler *compilers;
580 /* Number of entries in `compilers', not counting the null terminator. */
582 static int n_compilers;
584 /* The default list of file name suffixes and their compilation specs. */
586 static struct compiler default_compilers[] =
588 /* Add lists of suffixes of known languages here. If those languages
589 were not present when we built the driver, we will hit these copies
590 and be given a more meaningful error than "file not used since
591 linking is not done". */
592 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
593 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
594 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
595 {".fpp", {"#Fortran"}},
596 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
597 /* Next come the entries for C. */
600 {"cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
601 %{C:%{!E:%eGNU C does not support -C without using -E}}\
602 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
603 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
604 %{ansi:-trigraphs -D__STRICT_ANSI__}\
605 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
606 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
607 %{traditional} %{ftraditional:-traditional}\
608 %{traditional-cpp:-traditional}\
609 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
610 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
611 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
612 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
613 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
614 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
616 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
617 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
619 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
620 %{!pipe:%g.s} %A\n }}}}"}},
622 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
628 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
629 %{traditional} %{ftraditional:-traditional}\
630 %{traditional-cpp:-traditional}\
631 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
633 %{!E:%e-E required when input is from standard input}"}},
634 {".m", {"@objective-c"}},
636 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
637 %{C:%{!E:%eGNU C does not support -C without using -E}}\
638 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
639 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
640 %{ansi:-trigraphs -D__STRICT_ANSI__}\
641 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
642 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
643 %{traditional} %{ftraditional:-traditional}\
644 %{traditional-cpp:-traditional}\
645 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
646 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
647 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
648 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
649 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
650 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
651 -lang-objc %{gen-decls} \
653 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
654 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
656 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
657 %{!pipe:%g.s} %A\n }}}}"}},
658 {".h", {"@c-header"}},
660 {"%{!E:%eCompilation of header file requested} \
661 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
662 %{C:%{!E:%eGNU C does not support -C without using -E}}\
663 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
664 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
665 %{ansi:-trigraphs -D__STRICT_ANSI__}\
666 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
667 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
668 %{traditional} %{ftraditional:-traditional}\
669 %{traditional-cpp:-traditional}\
670 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
672 {".i", {"@cpp-output"}},
674 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
675 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
676 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
678 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
679 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
681 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
682 %{!pipe:%g.s} %A\n }}}}"}},
683 {".s", {"@assembler"}},
685 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
686 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
688 {".S", {"@assembler-with-cpp"}},
689 {"@assembler-with-cpp",
690 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
691 %{C:%{!E:%eGNU C does not support -C without using -E}}\
692 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
693 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
694 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
695 %{traditional} %{ftraditional:-traditional}\
696 %{traditional-cpp:-traditional}\
697 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
698 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
699 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
700 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
701 %{!pipe:%g.s} %A\n }}}}"}},
703 /* Mark end of table */
707 /* Number of elements in default_compilers, not counting the terminator. */
709 static int n_default_compilers
710 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
712 /* Here is the spec for running the linker, after compiling all files. */
714 /* -u* was put back because both BSD and SysV seem to support it. */
715 /* %{static:} simply prevents an error message if the target machine
716 doesn't handle -static. */
717 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
718 scripts which exist in user specified directories, or in standard
720 #ifdef LINK_LIBGCC_SPECIAL
721 /* Don't generate -L options. */
722 static char *link_command_spec = "\
724 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
725 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
726 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
728 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
729 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
734 static char *link_command_spec = "\
736 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
737 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
738 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
739 %{static:} %{L*} %D %o\
740 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
741 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
746 /* A vector of options to give to the linker.
747 These options are accumulated by %x,
748 and substituted into the linker command with %X. */
749 static int n_linker_options;
750 static char **linker_options;
752 /* A vector of options to give to the assembler.
753 These options are accumulated by -Wa,
754 and substituted into the assembler command with %Y. */
755 static int n_assembler_options;
756 static char **assembler_options;
758 /* A vector of options to give to the preprocessor.
759 These options are accumulated by -Wp,
760 and substituted into the preprocessor command with %Z. */
761 static int n_preprocessor_options;
762 static char **preprocessor_options;
764 /* Define how to map long options into short ones. */
766 /* This structure describes one mapping. */
769 /* The long option's name. */
771 /* The equivalent short option. */
773 /* Argument info. A string of flag chars; NULL equals no options.
774 a => argument required.
775 o => argument optional.
776 j => join argument to equivalent, making one word.
777 * => require other text after NAME as an argument. */
781 /* This is the table of mappings. Mappings are tried sequentially
782 for each option encountered; the first one that matches, wins. */
784 struct option_map option_map[] =
786 {"--all-warnings", "-Wall", 0},
787 {"--ansi", "-ansi", 0},
788 {"--assemble", "-S", 0},
789 {"--assert", "-A", "a"},
790 {"--comments", "-C", 0},
791 {"--compile", "-c", 0},
792 {"--debug", "-g", "oj"},
793 {"--define-macro", "-D", "aj"},
794 {"--dependencies", "-M", 0},
795 {"--dump", "-d", "a"},
796 {"--dumpbase", "-dumpbase", "a"},
797 {"--entry", "-e", 0},
798 {"--extra-warnings", "-W", 0},
799 {"--for-assembler", "-Wa", "a"},
800 {"--for-linker", "-Xlinker", "a"},
801 {"--force-link", "-u", "a"},
802 {"--imacros", "-imacros", "a"},
803 {"--include", "-include", "a"},
804 {"--include-barrier", "-I-", 0},
805 {"--include-directory", "-I", "aj"},
806 {"--include-directory-after", "-idirafter", "a"},
807 {"--include-prefix", "-iprefix", "a"},
808 {"--include-with-prefix", "-iwithprefix", "a"},
809 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
810 {"--include-with-prefix-after", "-iwithprefix", "a"},
811 {"--language", "-x", "a"},
812 {"--library-directory", "-L", "a"},
813 {"--machine", "-m", "aj"},
814 {"--machine-", "-m", "*j"},
815 {"--no-line-commands", "-P", 0},
816 {"--no-precompiled-includes", "-noprecomp", 0},
817 {"--no-standard-includes", "-nostdinc", 0},
818 {"--no-standard-libraries", "-nostdlib", 0},
819 {"--no-warnings", "-w", 0},
820 {"--optimize", "-O", "oj"},
821 {"--output", "-o", "a"},
822 {"--pedantic", "-pedantic", 0},
823 {"--pedantic-errors", "-pedantic-errors", 0},
824 {"--pipe", "-pipe", 0},
825 {"--prefix", "-B", "a"},
826 {"--preprocess", "-E", 0},
827 {"--print-search-dirs", "-print-search-dirs", 0},
828 {"--print-file-name", "-print-file-name=", "aj"},
829 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
830 {"--print-missing-file-dependencies", "-MG", 0},
831 {"--print-multi-lib", "-print-multi-lib", 0},
832 {"--print-multi-directory", "-print-multi-directory", 0},
833 {"--print-prog-name", "-print-prog-name=", "aj"},
834 {"--profile", "-p", 0},
835 {"--profile-blocks", "-a", 0},
836 {"--quiet", "-q", 0},
837 {"--save-temps", "-save-temps", 0},
838 {"--shared", "-shared", 0},
839 {"--silent", "-q", 0},
840 {"--specs", "-specs=", "aj"},
841 {"--static", "-static", 0},
842 {"--symbolic", "-symbolic", 0},
843 {"--target", "-b", "a"},
844 {"--trace-includes", "-H", 0},
845 {"--traditional", "-traditional", 0},
846 {"--traditional-cpp", "-traditional-cpp", 0},
847 {"--trigraphs", "-trigraphs", 0},
848 {"--undefine-macro", "-U", "aj"},
849 {"--use-version", "-V", "a"},
850 {"--user-dependencies", "-MM", 0},
851 {"--verbose", "-v", 0},
852 {"--version", "-dumpversion", 0},
853 {"--warn-", "-W", "*j"},
854 {"--write-dependencies", "-MD", 0},
855 {"--write-user-dependencies", "-MMD", 0},
859 /* Translate the options described by *ARGCP and *ARGVP.
860 Make a new vector and store it back in *ARGVP,
861 and store its length in *ARGVC. */
864 translate_options (argcp, argvp)
870 char **argv = *argvp;
871 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
875 newv[newindex++] = argv[i++];
879 /* Translate -- options. */
880 if (argv[i][0] == '-' && argv[i][1] == '-')
882 /* Find a mapping that applies to this option. */
883 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
885 size_t optlen = strlen (option_map[j].name);
886 size_t arglen = strlen (argv[i]);
887 size_t complen = arglen > optlen ? optlen : arglen;
888 char *arginfo = option_map[j].arg_info;
893 if (!strncmp (argv[i], option_map[j].name, complen))
900 k < sizeof (option_map) / sizeof (option_map[0]);
902 if (strlen (option_map[k].name) >= arglen
903 && !strncmp (argv[i], option_map[k].name, arglen))
905 error ("Ambiguous abbreviation %s", argv[i]);
909 if (k != sizeof (option_map) / sizeof (option_map[0]))
915 /* If the option has an argument, accept that. */
916 if (argv[i][optlen] == '=')
917 arg = argv[i] + optlen + 1;
919 /* If this mapping requires extra text at end of name,
920 accept that as "argument". */
921 else if (index (arginfo, '*') != 0)
922 arg = argv[i] + optlen;
924 /* Otherwise, extra text at end means mismatch.
925 Try other mappings. */
930 else if (index (arginfo, '*') != 0)
932 error ("Incomplete `%s' option", option_map[j].name);
936 /* Handle arguments. */
937 if (index (arginfo, 'a') != 0)
943 error ("Missing argument to `%s' option",
951 else if (index (arginfo, '*') != 0)
953 else if (index (arginfo, 'o') == 0)
956 error ("Extraneous argument to `%s' option",
961 /* Store the translation as one argv elt or as two. */
962 if (arg != 0 && index (arginfo, 'j') != 0)
963 newv[newindex++] = concat (option_map[j].equivalent, arg,
967 newv[newindex++] = option_map[j].equivalent;
968 newv[newindex++] = arg;
971 newv[newindex++] = option_map[j].equivalent;
979 /* Handle old-fashioned options--just copy them through,
980 with their arguments. */
981 else if (argv[i][0] == '-')
983 char *p = argv[i] + 1;
987 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
988 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
989 else if (WORD_SWITCH_TAKES_ARG (p))
990 nskip += WORD_SWITCH_TAKES_ARG (p);
991 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
994 else if (! strcmp (p, "Xlinker"))
997 /* Watch out for an option at the end of the command line that
998 is missing arguments, and avoid skipping past the end of the
1000 if (nskip + i > argc)
1005 newv[newindex++] = argv[i++];
1010 /* Ordinary operands, or +e options. */
1011 newv[newindex++] = argv[i++];
1024 #ifdef HAVE_STRERROR
1030 static char buffer[30];
1032 return "cannot access";
1034 if (e > 0 && e < sys_nerr)
1035 return sys_errlist[e];
1037 sprintf (buffer, "Unknown error %d", e);
1048 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1049 be considered whitespace. */
1050 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1052 else if (*p == '\n' || *p == ' ' || *p == '\t')
1056 while (*p != '\n') p++;
1066 /* Structure to keep track of the specs that have been defined so far.
1067 These are accessed using %(specname) or %[specname] in a compiler
1072 /* The following 2 fields must be first */
1073 /* to allow EXTRA_SPECS to be initialized */
1074 char *name; /* name of the spec. */
1075 char *ptr; /* available ptr if no static pointer */
1077 /* The following fields are not initialized */
1078 /* by EXTRA_SPECS */
1079 char **ptr_spec; /* pointer to the spec itself. */
1080 struct spec_list *next; /* Next spec in linked list. */
1081 int name_len; /* length of the name */
1082 int alloc_p; /* whether string was allocated */
1085 #define INIT_STATIC_SPEC(NAME,PTR) \
1086 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1088 /* List of statically defined specs */
1089 static struct spec_list static_specs[] = {
1090 INIT_STATIC_SPEC ("asm", &asm_spec),
1091 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1092 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1093 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1094 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1095 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1096 INIT_STATIC_SPEC ("link", &link_spec),
1097 INIT_STATIC_SPEC ("lib", &lib_spec),
1098 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1099 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1100 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1101 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1102 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1103 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1104 INIT_STATIC_SPEC ("version", &compiler_version),
1105 INIT_STATIC_SPEC ("multilib", &multilib_select),
1106 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1107 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1108 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1109 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1112 #ifdef EXTRA_SPECS /* additional specs needed */
1113 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1116 /* List of dynamically allocates specs that have been defined so far. */
1118 static struct spec_list *specs = (struct spec_list *)0;
1121 /* Initialize the specs lookup routines. */
1126 struct spec_list *next = (struct spec_list *)0;
1127 struct spec_list *sl = (struct spec_list *)0;
1131 return; /* already initialized */
1134 fprintf (stderr, "Using builtin specs.\n");
1137 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1139 sl = &extra_specs[i];
1141 sl->name_len = strlen (sl->name);
1142 sl->ptr_spec = &sl->ptr;
1147 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1149 sl = &static_specs[i];
1158 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1159 removed; If the spec starts with a + then SPEC is added to the end of the
1163 set_spec (name, spec)
1167 struct spec_list *sl;
1169 int name_len = strlen (name);
1172 /* If this is the first call, initialize the statically allocated specs */
1175 struct spec_list *next = (struct spec_list *)0;
1176 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1179 sl = &static_specs[i];
1186 /* See if the spec already exists */
1187 for (sl = specs; sl; sl = sl->next)
1188 if (name_len == sl->name_len && !strcmp (sl->name, name))
1193 /* Not found - make it */
1194 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1195 sl->name = save_string (name, strlen (name));
1196 sl->name_len = name_len;
1197 sl->ptr_spec = &sl->ptr;
1199 *(sl->ptr_spec) = "";
1204 old_spec = *(sl->ptr_spec);
1205 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE (spec[1]))
1206 ? concat (old_spec, spec + 1, NULL_PTR)
1207 : save_string (spec, strlen (spec)));
1211 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1214 /* Free the old spec */
1215 if (old_spec && sl->alloc_p)
1221 /* Accumulate a command (program name and args), and run it. */
1223 /* Vector of pointers to arguments in the current line of specifications. */
1225 static char **argbuf;
1227 /* Number of elements allocated in argbuf. */
1229 static int argbuf_length;
1231 /* Number of elements in argbuf currently in use (containing args). */
1233 static int argbuf_index;
1235 #ifdef MKTEMP_EACH_FILE
1236 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1239 static struct temp_name {
1240 char *suffix; /* suffix associated with the code. */
1241 int length; /* strlen (suffix). */
1242 int unique; /* Indicates whether %g or %u/%U was used. */
1243 char *filename; /* associated filename. */
1244 int filename_length; /* strlen (filename). */
1245 struct temp_name *next;
1249 /* Number of commands executed so far. */
1251 static int execution_count;
1253 /* Number of commands that exited with a signal. */
1255 static int signal_count;
1257 /* Name with which this program was invoked. */
1259 static char *programname;
1261 /* Structures to keep track of prefixes to try when looking for files. */
1265 char *prefix; /* String to prepend to the path. */
1266 struct prefix_list *next; /* Next in linked list. */
1267 int require_machine_suffix; /* Don't use without machine_suffix. */
1268 /* 2 means try both machine_suffix and just_machine_suffix. */
1269 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1274 struct prefix_list *plist; /* List of prefixes to try */
1275 int max_len; /* Max length of a prefix in PLIST */
1276 char *name; /* Name of this list (used in config stuff) */
1279 /* List of prefixes to try when looking for executables. */
1281 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1283 /* List of prefixes to try when looking for startup (crt0) files. */
1285 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1287 /* List of prefixes to try when looking for include files. */
1289 static struct path_prefix include_prefixes = { 0, 0, "include" };
1291 /* Suffix to attach to directories searched for commands.
1292 This looks like `MACHINE/VERSION/'. */
1294 static char *machine_suffix = 0;
1296 /* Suffix to attach to directories searched for commands.
1297 This is just `MACHINE/'. */
1299 static char *just_machine_suffix = 0;
1301 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1303 static char *gcc_exec_prefix;
1305 /* Default prefixes to attach to command names. */
1307 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1308 #undef MD_EXEC_PREFIX
1309 #undef MD_STARTFILE_PREFIX
1310 #undef MD_STARTFILE_PREFIX_1
1313 #ifndef STANDARD_EXEC_PREFIX
1314 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1315 #endif /* !defined STANDARD_EXEC_PREFIX */
1317 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1318 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1319 #ifdef MD_EXEC_PREFIX
1320 static char *md_exec_prefix = MD_EXEC_PREFIX;
1323 #ifndef STANDARD_STARTFILE_PREFIX
1324 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1325 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1327 #ifdef MD_STARTFILE_PREFIX
1328 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1330 #ifdef MD_STARTFILE_PREFIX_1
1331 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1333 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1334 static char *standard_startfile_prefix_1 = "/lib/";
1335 static char *standard_startfile_prefix_2 = "/usr/lib/";
1337 #ifndef TOOLDIR_BASE_PREFIX
1338 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1340 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1341 static char *tooldir_prefix;
1343 /* Subdirectory to use for locating libraries. Set by
1344 set_multilib_dir based on the compilation options. */
1346 static char *multilib_dir;
1348 /* Clear out the vector of arguments (after a command is executed). */
1356 /* Add one argument to the vector at the end.
1357 This is done when a space is seen or at the end of the line.
1358 If DELETE_ALWAYS is nonzero, the arg is a filename
1359 and the file should be deleted eventually.
1360 If DELETE_FAILURE is nonzero, the arg is a filename
1361 and the file should be deleted if this compilation fails. */
1364 store_arg (arg, delete_always, delete_failure)
1366 int delete_always, delete_failure;
1368 if (argbuf_index + 1 == argbuf_length)
1370 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1372 argbuf[argbuf_index++] = arg;
1373 argbuf[argbuf_index] = 0;
1375 if (delete_always || delete_failure)
1376 record_temp_file (arg, delete_always, delete_failure);
1379 /* Read compilation specs from a file named FILENAME,
1380 replacing the default ones.
1382 A suffix which starts with `*' is a definition for
1383 one of the machine-specific sub-specs. The "suffix" should be
1384 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1385 The corresponding spec is stored in asm_spec, etc.,
1386 rather than in the `compilers' vector.
1388 Anything invalid in the file is a fatal error. */
1391 read_specs (filename, main_p)
1397 struct stat statbuf;
1402 fprintf (stderr, "Reading specs from %s\n", filename);
1404 /* Open and stat the file. */
1405 desc = open (filename, O_RDONLY, 0);
1407 pfatal_with_name (filename);
1408 if (stat (filename, &statbuf) < 0)
1409 pfatal_with_name (filename);
1411 /* Read contents of file into BUFFER. */
1412 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1413 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1415 pfatal_with_name (filename);
1416 buffer[readlen] = 0;
1419 /* Scan BUFFER for specs, putting them in the vector. */
1425 char *in, *out, *p1, *p2, *p3;
1427 /* Advance P in BUFFER to the next nonblank nocomment line. */
1428 p = skip_whitespace (p);
1432 /* Is this a special command that starts with '%'? */
1433 /* Don't allow this for the main specs file, since it would
1434 encourage people to overwrite it. */
1435 if (*p == '%' && !main_p)
1438 while (*p && *p != '\n')
1441 p++; /* Skip '\n' */
1443 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1444 && (p1[sizeof "%include" - 1] == ' '
1445 || p1[sizeof "%include" - 1] == '\t'))
1449 p1 += sizeof ("%include");
1450 while (*p1 == ' ' || *p1 == '\t')
1453 if (*p1++ != '<' || p[-2] != '>')
1454 fatal ("specs %%include syntax malformed after %d characters",
1458 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1459 read_specs (new_filename ? new_filename : p1, FALSE);
1462 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1463 && (p1[sizeof "%include_noerr" - 1] == ' '
1464 || p1[sizeof "%include_noerr" - 1] == '\t'))
1468 p1 += sizeof "%include_noerr";
1469 while (*p1 == ' ' || *p1 == '\t') p1++;
1471 if (*p1++ != '<' || p[-2] != '>')
1472 fatal ("specs %%include syntax malformed after %d characters",
1476 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1478 read_specs (new_filename, FALSE);
1479 else if (verbose_flag)
1480 fprintf (stderr, "Could not find specs file %s\n", p1);
1483 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1484 && (p1[sizeof "%rename" - 1] == ' '
1485 || p1[sizeof "%rename" - 1] == '\t'))
1488 struct spec_list *sl;
1490 /* Get original name */
1491 p1 += sizeof "%rename";
1492 while (*p1 == ' ' || *p1 == '\t')
1495 if (! ISALPHA (*p1))
1496 fatal ("specs %%rename syntax malformed after %d characters",
1500 while (*p2 && !ISSPACE (*p2))
1503 if (*p2 != ' ' && *p2 != '\t')
1504 fatal ("specs %%rename syntax malformed after %d characters",
1509 while (*p2 == ' ' || *p2 == '\t')
1512 if (! ISALPHA (*p2))
1513 fatal ("specs %%rename syntax malformed after %d characters",
1516 /* Get new spec name */
1518 while (*p3 && !ISSPACE (*p3))
1522 fatal ("specs %%rename syntax malformed after %d characters",
1526 for (sl = specs; sl; sl = sl->next)
1527 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1531 fatal ("specs %s spec was not found to be renamed", p1);
1533 if (strcmp (p1, p2) == 0)
1538 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1540 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1544 set_spec (p2, *(sl->ptr_spec));
1546 free (*(sl->ptr_spec));
1548 *(sl->ptr_spec) = "";
1553 fatal ("specs unknown %% command after %d characters",
1557 /* Find the colon that should end the suffix. */
1559 while (*p1 && *p1 != ':' && *p1 != '\n')
1562 /* The colon shouldn't be missing. */
1564 fatal ("specs file malformed after %d characters", p1 - buffer);
1566 /* Skip back over trailing whitespace. */
1568 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1571 /* Copy the suffix to a string. */
1572 suffix = save_string (p, p2 - p);
1573 /* Find the next line. */
1574 p = skip_whitespace (p1 + 1);
1576 fatal ("specs file malformed after %d characters", p - buffer);
1579 /* Find next blank line or end of string. */
1580 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1583 /* Specs end at the blank line and do not include the newline. */
1584 spec = save_string (p, p1 - p);
1587 /* Delete backslash-newline sequences from the spec. */
1592 if (in[0] == '\\' && in[1] == '\n')
1594 else if (in[0] == '#')
1595 while (*in && *in != '\n')
1603 if (suffix[0] == '*')
1605 if (! strcmp (suffix, "*link_command"))
1606 link_command_spec = spec;
1608 set_spec (suffix + 1, spec);
1612 /* Add this pair to the vector. */
1614 = ((struct compiler *)
1615 xrealloc (compilers,
1616 (n_compilers + 2) * sizeof (struct compiler)));
1618 compilers[n_compilers].suffix = suffix;
1619 bzero ((char *) compilers[n_compilers].spec,
1620 sizeof compilers[n_compilers].spec);
1621 compilers[n_compilers].spec[0] = spec;
1623 bzero ((char *) &compilers[n_compilers],
1624 sizeof compilers[n_compilers]);
1628 link_command_spec = spec;
1631 if (link_command_spec == 0)
1632 fatal ("spec file has no spec for linking");
1635 /* Record the names of temporary files we tell compilers to write,
1636 and delete them at the end of the run. */
1638 /* This is the common prefix we use to make temp file names.
1639 It is chosen once for each run of this program.
1640 It is substituted into a spec by %g.
1641 Thus, all temp file names contain this prefix.
1642 In practice, all temp file names start with this prefix.
1644 This prefix comes from the envvar TMPDIR if it is defined;
1645 otherwise, from the P_tmpdir macro if that is defined;
1646 otherwise, in /usr/tmp or /tmp;
1647 or finally the current directory if all else fails. */
1649 static char *temp_filename;
1651 /* Length of the prefix. */
1653 static int temp_filename_length;
1655 /* Define the list of temporary files to delete. */
1660 struct temp_file *next;
1663 /* Queue of files to delete on success or failure of compilation. */
1664 static struct temp_file *always_delete_queue;
1665 /* Queue of files to delete on failure of compilation. */
1666 static struct temp_file *failure_delete_queue;
1668 /* Record FILENAME as a file to be deleted automatically.
1669 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1670 otherwise delete it in any case.
1671 FAIL_DELETE nonzero means delete it if a compilation step fails;
1672 otherwise delete it in any case. */
1675 record_temp_file (filename, always_delete, fail_delete)
1680 register char *name;
1681 name = xmalloc (strlen (filename) + 1);
1682 strcpy (name, filename);
1686 register struct temp_file *temp;
1687 for (temp = always_delete_queue; temp; temp = temp->next)
1688 if (! strcmp (name, temp->name))
1691 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1692 temp->next = always_delete_queue;
1694 always_delete_queue = temp;
1701 register struct temp_file *temp;
1702 for (temp = failure_delete_queue; temp; temp = temp->next)
1703 if (! strcmp (name, temp->name))
1706 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1707 temp->next = failure_delete_queue;
1709 failure_delete_queue = temp;
1715 /* Delete all the temporary files whose names we previously recorded. */
1718 delete_if_ordinary (name)
1725 printf ("Delete %s? (y or n) ", name);
1729 while ((c = getchar ()) != '\n' && c != EOF)
1732 if (i == 'y' || i == 'Y')
1734 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1735 if (unlink (name) < 0)
1737 perror_with_name (name);
1741 delete_temp_files ()
1743 register struct temp_file *temp;
1745 for (temp = always_delete_queue; temp; temp = temp->next)
1746 delete_if_ordinary (temp->name);
1747 always_delete_queue = 0;
1750 /* Delete all the files to be deleted on error. */
1753 delete_failure_queue ()
1755 register struct temp_file *temp;
1757 for (temp = failure_delete_queue; temp; temp = temp->next)
1758 delete_if_ordinary (temp->name);
1762 clear_failure_queue ()
1764 failure_delete_queue = 0;
1767 /* Routine to add variables to the environment. We do this to pass
1768 the pathname of the gcc driver, and the directories search to the
1769 collect2 program, which is being run as ld. This way, we can be
1770 sure of executing the right compiler when collect2 wants to build
1771 constructors and destructors. Since the environment variables we
1772 use come from an obstack, we don't have to worry about allocating
1781 #ifndef VMS /* nor about VMS */
1783 extern char **environ;
1784 char **old_environ = environ;
1788 int str_len = strlen (str);
1792 while ((ch = *p++) != '\0' && ch != '=')
1798 /* Search for replacing an existing environment variable, and
1799 count the number of total environment variables. */
1800 for (envp = old_environ; *envp; envp++)
1803 if (!strncmp (str, *envp, name_len))
1810 /* Add a new environment variable */
1811 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1813 bcopy ((char *) old_environ, (char *) (environ + 1),
1814 sizeof (char *) * (num_envs+1));
1819 #endif /* HAVE_PUTENV */
1822 /* Build a list of search directories from PATHS.
1823 PREFIX is a string to prepend to the list.
1824 If CHECK_DIR_P is non-zero we ensure the directory exists.
1825 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1826 It is also used by the --print-search-dirs flag. */
1829 build_search_list (paths, prefix, check_dir_p)
1830 struct path_prefix *paths;
1834 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1836 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1837 int first_time = TRUE;
1838 struct prefix_list *pprefix;
1840 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1842 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1844 int len = strlen (pprefix->prefix);
1848 || is_directory (pprefix->prefix, machine_suffix, 0)))
1851 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1854 obstack_grow (&collect_obstack, pprefix->prefix, len);
1855 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1858 if (just_machine_suffix
1859 && pprefix->require_machine_suffix == 2
1861 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1864 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1867 obstack_grow (&collect_obstack, pprefix->prefix, len);
1868 obstack_grow (&collect_obstack, just_machine_suffix,
1872 if (! pprefix->require_machine_suffix)
1875 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1878 obstack_grow (&collect_obstack, pprefix->prefix, len);
1882 obstack_1grow (&collect_obstack, '\0');
1883 return obstack_finish (&collect_obstack);
1886 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1890 putenv_from_prefixes (paths, env_var)
1891 struct path_prefix *paths;
1894 putenv (build_search_list (paths, env_var, 1));
1897 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1898 access to check permissions.
1899 Return 0 if not found, otherwise return its name, allocated with malloc. */
1902 find_a_file (pprefix, name, mode)
1903 struct path_prefix *pprefix;
1908 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1909 struct prefix_list *pl;
1910 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1913 len += strlen (machine_suffix);
1915 temp = xmalloc (len);
1917 /* Determine the filename to execute (special case for absolute paths). */
1919 if (*name == '/' || *name == DIR_SEPARATOR
1920 /* Check for disk name on MS-DOS-based systems. */
1921 || (DIR_SEPARATOR == '\\' && name[1] == ':'
1922 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
1924 if (access (name, mode))
1926 strcpy (temp, name);
1931 for (pl = pprefix->plist; pl; pl = pl->next)
1935 /* Some systems have a suffix for executable files.
1936 So try appending that first. */
1937 if (file_suffix[0] != 0)
1939 strcpy (temp, pl->prefix);
1940 strcat (temp, machine_suffix);
1941 strcat (temp, name);
1942 strcat (temp, file_suffix);
1943 if (access (temp, mode) == 0)
1945 if (pl->used_flag_ptr != 0)
1946 *pl->used_flag_ptr = 1;
1951 /* Now try just the name. */
1952 strcpy (temp, pl->prefix);
1953 strcat (temp, machine_suffix);
1954 strcat (temp, name);
1955 if (access (temp, mode) == 0)
1957 if (pl->used_flag_ptr != 0)
1958 *pl->used_flag_ptr = 1;
1963 /* Certain prefixes are tried with just the machine type,
1964 not the version. This is used for finding as, ld, etc. */
1965 if (just_machine_suffix && pl->require_machine_suffix == 2)
1967 /* Some systems have a suffix for executable files.
1968 So try appending that first. */
1969 if (file_suffix[0] != 0)
1971 strcpy (temp, pl->prefix);
1972 strcat (temp, just_machine_suffix);
1973 strcat (temp, name);
1974 strcat (temp, file_suffix);
1975 if (access (temp, mode) == 0)
1977 if (pl->used_flag_ptr != 0)
1978 *pl->used_flag_ptr = 1;
1983 strcpy (temp, pl->prefix);
1984 strcat (temp, just_machine_suffix);
1985 strcat (temp, name);
1986 if (access (temp, mode) == 0)
1988 if (pl->used_flag_ptr != 0)
1989 *pl->used_flag_ptr = 1;
1994 /* Certain prefixes can't be used without the machine suffix
1995 when the machine or version is explicitly specified. */
1996 if (! pl->require_machine_suffix)
1998 /* Some systems have a suffix for executable files.
1999 So try appending that first. */
2000 if (file_suffix[0] != 0)
2002 strcpy (temp, pl->prefix);
2003 strcat (temp, name);
2004 strcat (temp, file_suffix);
2005 if (access (temp, mode) == 0)
2007 if (pl->used_flag_ptr != 0)
2008 *pl->used_flag_ptr = 1;
2013 strcpy (temp, pl->prefix);
2014 strcat (temp, name);
2015 if (access (temp, mode) == 0)
2017 if (pl->used_flag_ptr != 0)
2018 *pl->used_flag_ptr = 1;
2028 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2029 at the start of the list, otherwise it goes at the end.
2031 If WARN is nonzero, we will warn if no file is found
2032 through this prefix. WARN should point to an int
2033 which will be set to 1 if this entry is used.
2035 COMPONENT is the value to be passed to update_path.
2037 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2038 the complete value of machine_suffix.
2039 2 means try both machine_suffix and just_machine_suffix. */
2042 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2043 struct path_prefix *pprefix;
2047 int require_machine_suffix;
2050 struct prefix_list *pl, **prev;
2053 if (! first && pprefix->plist)
2055 for (pl = pprefix->plist; pl->next; pl = pl->next)
2060 prev = &pprefix->plist;
2062 /* Keep track of the longest prefix */
2064 prefix = update_path (prefix, component);
2065 len = strlen (prefix);
2066 if (len > pprefix->max_len)
2067 pprefix->max_len = len;
2069 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2070 pl->prefix = save_string (prefix, len);
2071 pl->require_machine_suffix = require_machine_suffix;
2072 pl->used_flag_ptr = warn;
2079 pl->next = (struct prefix_list *) 0;
2083 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2086 unused_prefix_warnings (pprefix)
2087 struct path_prefix *pprefix;
2089 struct prefix_list *pl = pprefix->plist;
2093 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2095 if (pl->require_machine_suffix && machine_suffix)
2096 error ("file path prefix `%s%s' never used", pl->prefix,
2099 error ("file path prefix `%s' never used", pl->prefix);
2101 /* Prevent duplicate warnings. */
2102 *pl->used_flag_ptr = 1;
2110 /* Execute the command specified by the arguments on the current line of spec.
2111 When using pipes, this includes several piped-together commands
2112 with `|' between them.
2114 Return 0 if successful, -1 if failed. */
2120 int n_commands; /* # of command. */
2124 char *prog; /* program name. */
2125 char **argv; /* vector of args. */
2126 int pid; /* pid of process for this command. */
2129 struct command *commands; /* each command buffer with above info. */
2131 /* Count # of piped commands. */
2132 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2133 if (strcmp (argbuf[i], "|") == 0)
2136 /* Get storage for each command. */
2138 = (struct command *) alloca (n_commands * sizeof (struct command));
2140 /* Split argbuf into its separate piped processes,
2141 and record info about each one.
2142 Also search for the programs that are to be run. */
2144 commands[0].prog = argbuf[0]; /* first command. */
2145 commands[0].argv = &argbuf[0];
2146 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2149 commands[0].argv[0] = string;
2151 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2152 if (strcmp (argbuf[i], "|") == 0)
2153 { /* each command. */
2154 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2155 fatal ("-pipe not supported");
2157 argbuf[i] = 0; /* termination of command args. */
2158 commands[n_commands].prog = argbuf[i + 1];
2159 commands[n_commands].argv = &argbuf[i + 1];
2160 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2162 commands[n_commands].argv[0] = string;
2166 argbuf[argbuf_index] = 0;
2168 /* If -v, print what we are about to do, and maybe query. */
2172 /* Print each piped command as a separate line. */
2173 for (i = 0; i < n_commands ; i++)
2177 for (j = commands[i].argv; *j; j++)
2178 fprintf (stderr, " %s", *j);
2180 /* Print a pipe symbol after all but the last command. */
2181 if (i + 1 != n_commands)
2182 fprintf (stderr, " |");
2183 fprintf (stderr, "\n");
2187 fprintf (stderr, "\nGo ahead? (y or n) ");
2191 while (getchar () != '\n')
2194 if (i != 'y' && i != 'Y')
2199 /* Run each piped subprocess. */
2201 for (i = 0; i < n_commands; i++)
2203 char *errmsg_fmt, *errmsg_arg;
2204 char *string = commands[i].argv[0];
2206 commands[i].pid = pexecute (string, commands[i].argv,
2207 programname, temp_filename,
2208 &errmsg_fmt, &errmsg_arg,
2209 ((i == 0 ? PEXECUTE_FIRST : 0)
2210 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2211 | (string == commands[i].prog
2212 ? PEXECUTE_SEARCH : 0)
2213 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2215 if (commands[i].pid == -1)
2216 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2218 if (string != commands[i].prog)
2224 /* Wait for all the subprocesses to finish.
2225 We don't care what order they finish in;
2226 we know that N_COMMANDS waits will get them all.
2227 Ignore subprocesses that we don't know about,
2228 since they can be spawned by the process that exec'ed us. */
2233 for (i = 0; i < n_commands; )
2239 pid = pwait (commands[i].pid, &status, 0);
2243 for (j = 0; j < n_commands; j++)
2244 if (commands[j].pid == pid)
2249 if (WIFSIGNALED (status))
2251 fatal ("Internal compiler error: program %s got fatal signal %d",
2252 commands[j].prog, WTERMSIG (status));
2256 else if (WIFEXITED (status)
2257 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2267 /* Find all the switches given to us
2268 and make a vector describing them.
2269 The elements of the vector are strings, one per switch given.
2270 If a switch uses following arguments, then the `part1' field
2271 is the switch itself and the `args' field
2272 is a null-terminated vector containing the following arguments.
2273 The `live_cond' field is 1 if the switch is true in a conditional spec,
2274 -1 if false (overridden by a later switch), and is initialized to zero.
2275 The `valid' field is nonzero if any spec has looked at this switch;
2276 if it remains zero at the end of the run, it must be meaningless. */
2286 static struct switchstr *switches;
2288 static int n_switches;
2296 /* Also a vector of input files specified. */
2298 static struct infile *infiles;
2300 static int n_infiles;
2302 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2303 we can tell if there were any user supplied any files or libraries. */
2305 static int added_libraries;
2307 /* And a vector of corresponding output files is made up later. */
2309 static char **outfiles;
2311 /* Used to track if none of the -B paths are used. */
2314 /* Used to track if standard path isn't used and -b or -V is specified. */
2315 static int warn_std;
2317 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2318 static int *warn_std_ptr = 0;
2321 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2323 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2324 is true if we should look for an executable suffix as well. */
2327 convert_filename (name, do_exe)
2332 int len = strlen (name);
2334 #ifdef HAVE_OBJECT_SUFFIX
2335 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2337 && name[len - 2] == '.'
2338 && name[len - 1] == 'o')
2340 obstack_grow (&obstack, name, len - 2);
2341 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2342 name = obstack_finish (&obstack);
2346 #ifdef HAVE_EXECUTABLE_SUFFIX
2347 /* If there is no filetype, make it the executable suffix (which includes
2348 the "."). But don't get confused if we have just "-o". */
2349 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2352 for (i = len - 1; i >= 0; i--)
2353 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2356 for (i++; i < len; i++)
2360 obstack_grow (&obstack, name, len);
2361 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2362 name = obstack_finish (&obstack);
2369 /* Create the vector `switches' and its contents.
2370 Store its length in `n_switches'. */
2373 process_command (argc, argv)
2379 char *spec_lang = 0;
2380 int last_language_n_infiles;
2383 int lang_n_infiles = 0;
2385 GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2389 added_libraries = 0;
2391 /* Figure compiler version from version string. */
2393 compiler_version = save_string (version_string, strlen (version_string));
2394 for (temp = compiler_version; *temp; ++temp)
2403 /* Set up the default search paths. */
2405 if (gcc_exec_prefix)
2407 int len = strlen (gcc_exec_prefix);
2408 if (len > sizeof ("/lib/gcc-lib/")-1
2409 && (gcc_exec_prefix[len-1] == '/'
2410 || gcc_exec_prefix[len-1] == DIR_SEPARATOR))
2412 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2413 if ((*temp == '/' || *temp == DIR_SEPARATOR)
2414 && strncmp (temp+1, "lib", 3) == 0
2415 && (temp[4] == '/' || temp[4] == DIR_SEPARATOR)
2416 && strncmp (temp+5, "gcc-lib", 7) == 0)
2417 len -= sizeof ("/lib/gcc-lib/") - 1;
2420 set_std_prefix (gcc_exec_prefix, len);
2421 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2422 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2425 /* COMPILER_PATH and LIBRARY_PATH have values
2426 that are lists of directory names with colons. */
2428 GET_ENVIRONMENT (temp, "COMPILER_PATH");
2431 char *startp, *endp;
2432 char *nstore = (char *) alloca (strlen (temp) + 3);
2434 startp = endp = temp;
2437 if (*endp == PATH_SEPARATOR || *endp == 0)
2439 strncpy (nstore, startp, endp-startp);
2441 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2442 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2444 nstore[endp-startp] = DIR_SEPARATOR;
2445 nstore[endp-startp+1] = 0;
2448 nstore[endp-startp] = 0;
2449 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2450 add_prefix (&include_prefixes,
2451 concat (nstore, "include", NULL_PTR),
2455 endp = startp = endp + 1;
2462 GET_ENVIRONMENT (temp, "LIBRARY_PATH");
2463 if (temp && *cross_compile == '0')
2465 char *startp, *endp;
2466 char *nstore = (char *) alloca (strlen (temp) + 3);
2468 startp = endp = temp;
2471 if (*endp == PATH_SEPARATOR || *endp == 0)
2473 strncpy (nstore, startp, endp-startp);
2475 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2476 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2478 nstore[endp-startp] = DIR_SEPARATOR;
2479 nstore[endp-startp+1] = 0;
2482 nstore[endp-startp] = 0;
2483 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2487 endp = startp = endp + 1;
2494 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2495 GET_ENVIRONMENT (temp, "LPATH");
2496 if (temp && *cross_compile == '0')
2498 char *startp, *endp;
2499 char *nstore = (char *) alloca (strlen (temp) + 3);
2501 startp = endp = temp;
2504 if (*endp == PATH_SEPARATOR || *endp == 0)
2506 strncpy (nstore, startp, endp-startp);
2508 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2509 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2511 nstore[endp-startp] = DIR_SEPARATOR;
2512 nstore[endp-startp+1] = 0;
2515 nstore[endp-startp] = 0;
2516 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2520 endp = startp = endp + 1;
2527 /* Convert new-style -- options to old-style. */
2528 translate_options (&argc, &argv);
2530 #ifdef LANG_SPECIFIC_DRIVER
2531 /* Do language-specific adjustment/addition of flags. */
2532 lang_specific_driver (fatal, &argc, &argv, &added_libraries);
2535 /* Scan argv twice. Here, the first time, just count how many switches
2536 there will be in their vector, and how many input files in theirs.
2537 Here we also parse the switches that cc itself uses (e.g. -v). */
2539 for (i = 1; i < argc; i++)
2541 if (! strcmp (argv[i], "-dumpspecs"))
2543 struct spec_list *sl;
2545 for (sl = specs; sl; sl = sl->next)
2546 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2549 else if (! strcmp (argv[i], "-dumpversion"))
2551 printf ("%s\n", spec_version);
2554 else if (! strcmp (argv[i], "-dumpmachine"))
2556 printf ("%s\n", spec_machine);
2559 else if (! strcmp (argv[i], "-print-search-dirs"))
2560 print_search_dirs = 1;
2561 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2562 print_file_name = "libgcc.a";
2563 else if (! strncmp (argv[i], "-print-file-name=", 17))
2564 print_file_name = argv[i] + 17;
2565 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2566 print_prog_name = argv[i] + 17;
2567 else if (! strcmp (argv[i], "-print-multi-lib"))
2568 print_multi_lib = 1;
2569 else if (! strcmp (argv[i], "-print-multi-directory"))
2570 print_multi_directory = 1;
2571 else if (! strncmp (argv[i], "-Wa,", 4))
2574 /* Pass the rest of this option to the assembler. */
2576 n_assembler_options++;
2577 if (!assembler_options)
2579 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2582 = (char **) xrealloc (assembler_options,
2583 n_assembler_options * sizeof (char **));
2585 /* Split the argument at commas. */
2587 for (j = 4; argv[i][j]; j++)
2588 if (argv[i][j] == ',')
2590 assembler_options[n_assembler_options - 1]
2591 = save_string (argv[i] + prev, j - prev);
2592 n_assembler_options++;
2594 = (char **) xrealloc (assembler_options,
2595 n_assembler_options * sizeof (char **));
2598 /* Record the part after the last comma. */
2599 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2601 else if (! strncmp (argv[i], "-Wp,", 4))
2604 /* Pass the rest of this option to the preprocessor. */
2606 n_preprocessor_options++;
2607 if (!preprocessor_options)
2608 preprocessor_options
2609 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2611 preprocessor_options
2612 = (char **) xrealloc (preprocessor_options,
2613 n_preprocessor_options * sizeof (char **));
2615 /* Split the argument at commas. */
2617 for (j = 4; argv[i][j]; j++)
2618 if (argv[i][j] == ',')
2620 preprocessor_options[n_preprocessor_options - 1]
2621 = save_string (argv[i] + prev, j - prev);
2622 n_preprocessor_options++;
2623 preprocessor_options
2624 = (char **) xrealloc (preprocessor_options,
2625 n_preprocessor_options * sizeof (char **));
2628 /* Record the part after the last comma. */
2629 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2631 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2632 /* The +e options to the C++ front-end. */
2634 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2637 /* Split the argument at commas. */
2638 for (j = 3; argv[i][j]; j++)
2639 n_infiles += (argv[i][j] == ',');
2641 else if (strcmp (argv[i], "-Xlinker") == 0)
2644 fatal ("argument to `-Xlinker' is missing");
2649 else if (strncmp (argv[i], "-l", 2) == 0)
2651 else if (strcmp (argv[i], "-save-temps") == 0)
2653 save_temps_flag = 1;
2656 else if (strcmp (argv[i], "-specs") == 0)
2658 struct user_specs *user = (struct user_specs *)
2659 xmalloc (sizeof (struct user_specs));
2661 fatal ("argument to `-specs' is missing");
2663 user->next = (struct user_specs *)0;
2664 user->filename = argv[i];
2665 if (user_specs_tail)
2666 user_specs_tail->next = user;
2668 user_specs_head = user;
2669 user_specs_tail = user;
2671 else if (strncmp (argv[i], "-specs=", 7) == 0)
2673 struct user_specs *user = (struct user_specs *)
2674 xmalloc (sizeof (struct user_specs));
2675 if (strlen (argv[i]) == 7)
2676 fatal ("argument to `-specs=' is missing");
2678 user->next = (struct user_specs *)0;
2679 user->filename = argv[i]+7;
2680 if (user_specs_tail)
2681 user_specs_tail->next = user;
2683 user_specs_head = user;
2684 user_specs_tail = user;
2686 else if (argv[i][0] == '-' && argv[i][1] != 0)
2688 register char *p = &argv[i][1];
2689 register int c = *p;
2695 if (p[1] == 0 && i + 1 == argc)
2696 fatal ("argument to `-b' is missing");
2698 spec_machine = argv[++i];
2700 spec_machine = p + 1;
2702 warn_std_ptr = &warn_std;
2708 if (p[1] == 0 && i + 1 == argc)
2709 fatal ("argument to `-B' is missing");
2714 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2715 add_prefix (&startfile_prefixes, value, NULL_PTR,
2717 add_prefix (&include_prefixes, concat (value, "include",
2719 NULL_PTR, 1, 0, NULL_PTR);
2721 /* As a kludge, if the arg is "[foo/]stageN/", just add
2722 "[foo/]include" to the include prefix. */
2724 int len = strlen (value);
2727 && (value[len - 8] == '/'
2728 || value[len - 8] == DIR_SEPARATOR)))
2729 && strncmp (value + len - 7, "stage", 5) == 0
2730 && ISDIGIT (value[len - 2])
2731 && (value[len - 1] == '/'
2732 || value[len - 1] == DIR_SEPARATOR))
2735 add_prefix (&include_prefixes, "include", NULL_PTR,
2739 char *string = xmalloc (len + 1);
2740 strncpy (string, value, len-7);
2741 strcpy (string+len-7, "include");
2742 add_prefix (&include_prefixes, string, NULL_PTR,
2751 case 'v': /* Print our subcommands and print versions. */
2753 /* If they do anything other than exactly `-v', don't set
2754 verbose_flag; rather, continue on to give the error. */
2762 if (p[1] == 0 && i + 1 == argc)
2763 fatal ("argument to `-V' is missing");
2765 spec_version = argv[++i];
2767 spec_version = p + 1;
2768 compiler_version = spec_version;
2769 warn_std_ptr = &warn_std;
2771 /* Validate the version number. Use the same checks
2772 done when inserting it into a spec.
2774 The format of the version string is
2775 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2777 char *v = compiler_version;
2779 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2780 while (! ISDIGIT (*v))
2783 if (v > compiler_version && v[-1] != '-')
2784 fatal ("invalid version number format");
2786 /* Set V after the first period. */
2787 while (ISDIGIT (*v))
2791 fatal ("invalid version number format");
2794 while (ISDIGIT (*v))
2797 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
2798 fatal ("invalid version number format");
2814 #if defined(HAVE_EXECUTABLE_SUFFIX)
2819 /* Forward scan, just in case -S or -c is specified
2826 if (argv[j][0] == '-')
2828 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
2834 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
2835 j += skip - (argv[j][2] != 0);
2836 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
2843 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2845 argv[i+1] = convert_filename (argv[i+1], ! have_c);
2847 argv[i] = convert_filename (argv[i], ! have_c);
2855 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2856 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2857 else if (WORD_SWITCH_TAKES_ARG (p))
2858 i += WORD_SWITCH_TAKES_ARG (p);
2868 if (have_c && have_o && lang_n_infiles > 1)
2869 fatal ("cannot specify -o with -c or -S and multiple compilations");
2871 /* Set up the search paths before we go looking for config files. */
2873 /* These come before the md prefixes so that we will find gcc's subcommands
2874 (such as cpp) rather than those of the host system. */
2875 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2876 as well as trying the machine and the version. */
2878 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
2879 0, 2, warn_std_ptr);
2880 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
2881 0, 2, warn_std_ptr);
2884 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
2885 0, 1, warn_std_ptr);
2886 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
2887 0, 1, warn_std_ptr);
2889 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2890 dir_separator_str, NULL_PTR);
2892 /* If tooldir is relative, base it on exec_prefixes. A relative
2893 tooldir lets us move the installed tree as a unit.
2895 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2896 directories, so that we can search both the user specified directory
2897 and the standard place. */
2899 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2901 if (gcc_exec_prefix)
2903 char *gcc_exec_tooldir_prefix
2904 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2905 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2907 add_prefix (&exec_prefixes,
2908 concat (gcc_exec_tooldir_prefix, "bin",
2909 dir_separator_str, NULL_PTR),
2910 NULL_PTR, 0, 0, NULL_PTR);
2911 add_prefix (&startfile_prefixes,
2912 concat (gcc_exec_tooldir_prefix, "lib",
2913 dir_separator_str, NULL_PTR),
2914 NULL_PTR, 0, 0, NULL_PTR);
2917 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2918 dir_separator_str, spec_version,
2919 dir_separator_str, tooldir_prefix, NULL_PTR);
2922 add_prefix (&exec_prefixes,
2923 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2924 "BINUTILS", 0, 0, NULL_PTR);
2925 add_prefix (&startfile_prefixes,
2926 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2927 "BINUTILS", 0, 0, NULL_PTR);
2929 /* More prefixes are enabled in main, after we read the specs file
2930 and determine whether this is cross-compilation or not. */
2933 /* Then create the space for the vectors and scan again. */
2935 switches = ((struct switchstr *)
2936 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2937 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2940 last_language_n_infiles = -1;
2942 /* This, time, copy the text of each switch and store a pointer
2943 to the copy in the vector of switches.
2944 Store all the infiles in their vector. */
2946 for (i = 1; i < argc; i++)
2948 /* Just skip the switches that were handled by the preceding loop. */
2949 if (! strncmp (argv[i], "-Wa,", 4))
2951 else if (! strncmp (argv[i], "-Wp,", 4))
2953 else if (! strcmp (argv[i], "-print-search-dirs"))
2955 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2957 else if (! strncmp (argv[i], "-print-file-name=", 17))
2959 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2961 else if (! strcmp (argv[i], "-print-multi-lib"))
2963 else if (! strcmp (argv[i], "-print-multi-directory"))
2965 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2967 /* Compensate for the +e options to the C++ front-end;
2968 they're there simply for cfront call-compatibility. We do
2969 some magic in default_compilers to pass them down properly.
2970 Note we deliberately start at the `+' here, to avoid passing
2971 -e0 or -e1 down into the linker. */
2972 switches[n_switches].part1 = &argv[i][0];
2973 switches[n_switches].args = 0;
2974 switches[n_switches].live_cond = 0;
2975 switches[n_switches].valid = 0;
2978 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2981 /* Split the argument at commas. */
2983 for (j = 4; argv[i][j]; j++)
2984 if (argv[i][j] == ',')
2986 infiles[n_infiles].language = "*";
2987 infiles[n_infiles++].name
2988 = save_string (argv[i] + prev, j - prev);
2991 /* Record the part after the last comma. */
2992 infiles[n_infiles].language = "*";
2993 infiles[n_infiles++].name = argv[i] + prev;
2995 else if (strcmp (argv[i], "-Xlinker") == 0)
2997 infiles[n_infiles].language = "*";
2998 infiles[n_infiles++].name = argv[++i];
3000 else if (strncmp (argv[i], "-l", 2) == 0)
3002 infiles[n_infiles].language = "*";
3003 infiles[n_infiles++].name = argv[i];
3005 else if (strcmp (argv[i], "-specs") == 0)
3007 else if (strncmp (argv[i], "-specs=", 7) == 0)
3009 /* -save-temps overrides -pipe, so that temp files are produced */
3010 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
3011 error ("Warning: -pipe ignored since -save-temps specified");
3012 else if (argv[i][0] == '-' && argv[i][1] != 0)
3014 register char *p = &argv[i][1];
3015 register int c = *p;
3019 if (p[1] == 0 && i + 1 == argc)
3020 fatal ("argument to `-x' is missing");
3022 spec_lang = argv[++i];
3025 if (! strcmp (spec_lang, "none"))
3026 /* Suppress the warning if -xnone comes after the last input
3027 file, because alternate command interfaces like g++ might
3028 find it useful to place -xnone after each input file. */
3031 last_language_n_infiles = n_infiles;
3034 switches[n_switches].part1 = p;
3035 /* Deal with option arguments in separate argv elements. */
3036 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3037 || WORD_SWITCH_TAKES_ARG (p))
3040 int n_args = WORD_SWITCH_TAKES_ARG (p);
3044 /* Count only the option arguments in separate argv elements. */
3045 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3047 if (i + n_args >= argc)
3048 fatal ("argument to `-%s' is missing", p);
3049 switches[n_switches].args
3050 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3052 switches[n_switches].args[j++] = argv[++i];
3053 /* Null-terminate the vector. */
3054 switches[n_switches].args[j] = 0;
3056 else if (index (switches_need_spaces, c))
3058 /* On some systems, ld cannot handle some options without
3059 a space. So split the option from its argument. */
3060 char *part1 = (char *) xmalloc (2);
3064 switches[n_switches].part1 = part1;
3065 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3066 switches[n_switches].args[0] = xmalloc (strlen (p));
3067 strcpy (switches[n_switches].args[0], &p[1]);
3068 switches[n_switches].args[1] = 0;
3071 switches[n_switches].args = 0;
3073 switches[n_switches].live_cond = 0;
3074 switches[n_switches].valid = 0;
3075 /* This is always valid, since gcc.c itself understands it. */
3076 if (!strcmp (p, "save-temps"))
3077 switches[n_switches].valid = 1;
3080 char ch = switches[n_switches].part1[0];
3081 if (ch == 'V' || ch == 'b' || ch == 'B')
3082 switches[n_switches].valid = 1;
3088 #ifdef HAVE_OBJECT_SUFFIX
3089 argv[i] = convert_filename (argv[i], 0);
3092 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3094 perror_with_name (argv[i]);
3099 infiles[n_infiles].language = spec_lang;
3100 infiles[n_infiles++].name = argv[i];
3105 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3106 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3108 switches[n_switches].part1 = 0;
3109 infiles[n_infiles].name = 0;
3112 /* Process a spec string, accumulating and running commands. */
3114 /* These variables describe the input file name.
3115 input_file_number is the index on outfiles of this file,
3116 so that the output file name can be stored for later use by %o.
3117 input_basename is the start of the part of the input file
3118 sans all directory names, and basename_length is the number
3119 of characters starting there excluding the suffix .c or whatever. */
3121 char *input_filename;
3122 static int input_file_number;
3123 size_t input_filename_length;
3124 static int basename_length;
3125 static char *input_basename;
3126 static char *input_suffix;
3128 /* These are variables used within do_spec and do_spec_1. */
3130 /* Nonzero if an arg has been started and not yet terminated
3131 (with space, tab or newline). */
3132 static int arg_going;
3134 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3135 is a temporary file name. */
3136 static int delete_this_arg;
3138 /* Nonzero means %w has been seen; the next arg to be terminated
3139 is the output file name of this compilation. */
3140 static int this_is_output_file;
3142 /* Nonzero means %s has been seen; the next arg to be terminated
3143 is the name of a library file and we should try the standard
3144 search dirs for it. */
3145 static int this_is_library_file;
3147 /* Nonzero means that the input of this command is coming from a pipe. */
3148 static int input_from_pipe;
3150 /* Process the spec SPEC and run the commands specified therein.
3151 Returns 0 if the spec is successfully processed; -1 if failed. */
3161 delete_this_arg = 0;
3162 this_is_output_file = 0;
3163 this_is_library_file = 0;
3164 input_from_pipe = 0;
3166 value = do_spec_1 (spec, 0, NULL_PTR);
3168 /* Force out any unfinished command.
3169 If -pipe, this forces out the last command if it ended in `|'. */
3172 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3175 if (argbuf_index > 0)
3182 /* Process the sub-spec SPEC as a portion of a larger spec.
3183 This is like processing a whole spec except that we do
3184 not initialize at the beginning and we do not supply a
3185 newline by default at the end.
3186 INSWITCH nonzero means don't process %-sequences in SPEC;
3187 in this case, % is treated as an ordinary character.
3188 This is used while substituting switches.
3189 INSWITCH nonzero also causes SPC not to terminate an argument.
3191 Value is zero unless a line was finished
3192 and the command on that line reported an error. */
3195 do_spec_1 (spec, inswitch, soft_matched_part)
3198 char *soft_matched_part;
3200 register char *p = spec;
3207 /* If substituting a switch, treat all chars like letters.
3208 Otherwise, NL, SPC, TAB and % are special. */
3209 switch (inswitch ? 'a' : c)
3212 /* End of line: finish any pending argument,
3213 then run the pending command if one has been started. */
3216 obstack_1grow (&obstack, 0);
3217 string = obstack_finish (&obstack);
3218 if (this_is_library_file)
3219 string = find_file (string);
3220 store_arg (string, delete_this_arg, this_is_output_file);
3221 if (this_is_output_file)
3222 outfiles[input_file_number] = string;
3226 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3228 for (i = 0; i < n_switches; i++)
3229 if (!strcmp (switches[i].part1, "pipe"))
3232 /* A `|' before the newline means use a pipe here,
3233 but only if -pipe was specified.
3234 Otherwise, execute now and don't pass the `|' as an arg. */
3237 input_from_pipe = 1;
3238 switches[i].valid = 1;
3245 if (argbuf_index > 0)
3251 /* Reinitialize for a new command, and for a new argument. */
3254 delete_this_arg = 0;
3255 this_is_output_file = 0;
3256 this_is_library_file = 0;
3257 input_from_pipe = 0;
3261 /* End any pending argument. */
3264 obstack_1grow (&obstack, 0);
3265 string = obstack_finish (&obstack);
3266 if (this_is_library_file)
3267 string = find_file (string);
3268 store_arg (string, delete_this_arg, this_is_output_file);
3269 if (this_is_output_file)
3270 outfiles[input_file_number] = string;
3274 obstack_1grow (&obstack, c);
3280 /* Space or tab ends an argument if one is pending. */
3283 obstack_1grow (&obstack, 0);
3284 string = obstack_finish (&obstack);
3285 if (this_is_library_file)
3286 string = find_file (string);
3287 store_arg (string, delete_this_arg, this_is_output_file);
3288 if (this_is_output_file)
3289 outfiles[input_file_number] = string;
3291 /* Reinitialize for a new argument. */
3293 delete_this_arg = 0;
3294 this_is_output_file = 0;
3295 this_is_library_file = 0;
3302 fatal ("Invalid specification! Bug in cc.");
3305 obstack_grow (&obstack, input_basename, basename_length);
3310 delete_this_arg = 2;
3313 /* Dump out the directories specified with LIBRARY_PATH,
3314 followed by the absolute directories
3315 that we search for startfiles. */
3318 struct prefix_list *pl = startfile_prefixes.plist;
3319 size_t bufsize = 100;
3320 char *buffer = (char *) xmalloc (bufsize);
3323 for (; pl; pl = pl->next)
3325 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3326 /* Used on systems which record the specified -L dirs
3327 and use them to search for dynamic linking. */
3328 /* Relative directories always come from -B,
3329 and it is better not to use them for searching
3330 at run time. In particular, stage1 loses */
3331 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3334 /* Try subdirectory if there is one. */
3335 if (multilib_dir != NULL)
3339 if (strlen (pl->prefix) + strlen (machine_suffix)
3341 bufsize = (strlen (pl->prefix)
3342 + strlen (machine_suffix)) * 2 + 1;
3343 buffer = (char *) xrealloc (buffer, bufsize);
3344 strcpy (buffer, pl->prefix);
3345 strcat (buffer, machine_suffix);
3346 if (is_directory (buffer, multilib_dir, 1))
3348 do_spec_1 ("-L", 0, NULL_PTR);
3349 #ifdef SPACE_AFTER_L_OPTION
3350 do_spec_1 (" ", 0, NULL_PTR);
3352 do_spec_1 (buffer, 1, NULL_PTR);
3353 do_spec_1 (multilib_dir, 1, NULL_PTR);
3354 /* Make this a separate argument. */
3355 do_spec_1 (" ", 0, NULL_PTR);
3358 if (!pl->require_machine_suffix)
3360 if (is_directory (pl->prefix, multilib_dir, 1))
3362 do_spec_1 ("-L", 0, NULL_PTR);
3363 #ifdef SPACE_AFTER_L_OPTION
3364 do_spec_1 (" ", 0, NULL_PTR);
3366 do_spec_1 (pl->prefix, 1, NULL_PTR);
3367 do_spec_1 (multilib_dir, 1, NULL_PTR);
3368 /* Make this a separate argument. */
3369 do_spec_1 (" ", 0, NULL_PTR);
3375 if (is_directory (pl->prefix, machine_suffix, 1))
3377 do_spec_1 ("-L", 0, NULL_PTR);
3378 #ifdef SPACE_AFTER_L_OPTION
3379 do_spec_1 (" ", 0, NULL_PTR);
3381 do_spec_1 (pl->prefix, 1, NULL_PTR);
3382 /* Remove slash from machine_suffix. */
3383 if (strlen (machine_suffix) >= bufsize)
3384 bufsize = strlen (machine_suffix) * 2 + 1;
3385 buffer = (char *) xrealloc (buffer, bufsize);
3386 strcpy (buffer, machine_suffix);
3387 idx = strlen (buffer);
3388 if (buffer[idx - 1] == '/'
3389 || buffer[idx - 1] == DIR_SEPARATOR)
3390 buffer[idx - 1] = 0;
3391 do_spec_1 (buffer, 1, NULL_PTR);
3392 /* Make this a separate argument. */
3393 do_spec_1 (" ", 0, NULL_PTR);
3396 if (!pl->require_machine_suffix)
3398 if (is_directory (pl->prefix, "", 1))
3400 do_spec_1 ("-L", 0, NULL_PTR);
3401 #ifdef SPACE_AFTER_L_OPTION
3402 do_spec_1 (" ", 0, NULL_PTR);
3404 /* Remove slash from pl->prefix. */
3405 if (strlen (pl->prefix) >= bufsize)
3406 bufsize = strlen (pl->prefix) * 2 + 1;
3407 buffer = (char *) xrealloc (buffer, bufsize);
3408 strcpy (buffer, pl->prefix);
3409 idx = strlen (buffer);
3410 if (buffer[idx - 1] == '/'
3411 || buffer[idx - 1] == DIR_SEPARATOR)
3412 buffer[idx - 1] = 0;
3413 do_spec_1 (buffer, 1, NULL_PTR);
3414 /* Make this a separate argument. */
3415 do_spec_1 (" ", 0, NULL_PTR);
3424 /* {...:%efoo} means report an error with `foo' as error message
3425 and don't execute any more commands for this file. */
3429 while (*p != 0 && *p != '\n') p++;
3430 buf = (char *) alloca (p - q + 1);
3431 strncpy (buf, q, p - q);
3441 if (save_temps_flag)
3443 obstack_grow (&obstack, input_basename, basename_length);
3444 delete_this_arg = 0;
3448 #ifdef MKTEMP_EACH_FILE
3449 /* ??? This has a problem: the total number of
3450 values mktemp can return is limited.
3451 That matters for the names of object files.
3452 In 2.4, do something about that. */
3453 struct temp_name *t;
3455 while (*p == '.' || ISALPHA (*p)
3456 || (p[0] == '%' && p[1] == 'O'))
3459 /* See if we already have an association of %g/%u/%U and
3461 for (t = temp_names; t; t = t->next)
3462 if (t->length == p - suffix
3463 && strncmp (t->suffix, suffix, p - suffix) == 0
3464 && t->unique == (c != 'g'))
3467 /* Make a new association if needed. %u requires one. */
3468 if (t == 0 || c == 'u')
3472 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3473 t->next = temp_names;
3476 t->length = p - suffix;
3477 t->suffix = save_string (suffix, p - suffix);
3478 t->unique = (c != 'g');
3479 temp_filename = choose_temp_base ();
3480 temp_filename_length = strlen (temp_filename);
3481 t->filename = temp_filename;
3482 t->filename_length = temp_filename_length;
3485 obstack_grow (&obstack, t->filename, t->filename_length);
3486 delete_this_arg = 1;
3488 obstack_grow (&obstack, temp_filename, temp_filename_length);
3489 if (c == 'u' || c == 'U')
3495 sprintf (buff, "%d", unique);
3496 obstack_grow (&obstack, buff, strlen (buff));
3499 delete_this_arg = 1;
3505 obstack_grow (&obstack, input_filename, input_filename_length);
3511 struct prefix_list *pl = include_prefixes.plist;
3513 if (gcc_exec_prefix)
3515 do_spec_1 ("-iprefix", 1, NULL_PTR);
3516 /* Make this a separate argument. */
3517 do_spec_1 (" ", 0, NULL_PTR);
3518 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3519 do_spec_1 (" ", 0, NULL_PTR);
3522 for (; pl; pl = pl->next)
3524 do_spec_1 ("-isystem", 1, NULL_PTR);
3525 /* Make this a separate argument. */
3526 do_spec_1 (" ", 0, NULL_PTR);
3527 do_spec_1 (pl->prefix, 1, NULL_PTR);
3528 do_spec_1 (" ", 0, NULL_PTR);
3534 for (i = 0; i < n_infiles; i++)
3535 store_arg (outfiles[i], 0, 0);
3539 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3544 this_is_library_file = 1;
3548 this_is_output_file = 1;
3553 int cur_index = argbuf_index;
3554 /* Handle the {...} following the %W. */
3557 p = handle_braces (p + 1);
3560 /* If any args were output, mark the last one for deletion
3562 if (argbuf_index != cur_index)
3563 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3567 /* %x{OPTION} records OPTION for %X to output. */
3573 /* Skip past the option value and make a copy. */
3578 string = save_string (p1 + 1, p - p1 - 2);
3580 /* See if we already recorded this option. */
3581 for (i = 0; i < n_linker_options; i++)
3582 if (! strcmp (string, linker_options[i]))
3588 /* This option is new; add it. */
3590 if (!linker_options)
3592 = (char **) xmalloc (n_linker_options * sizeof (char **));
3595 = (char **) xrealloc (linker_options,
3596 n_linker_options * sizeof (char **));
3598 linker_options[n_linker_options - 1] = string;
3602 /* Dump out the options accumulated previously using %x. */
3604 for (i = 0; i < n_linker_options; i++)
3606 do_spec_1 (linker_options[i], 1, NULL_PTR);
3607 /* Make each accumulated option a separate argument. */
3608 do_spec_1 (" ", 0, NULL_PTR);
3612 /* Dump out the options accumulated previously using -Wa,. */
3614 for (i = 0; i < n_assembler_options; i++)
3616 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3617 /* Make each accumulated option a separate argument. */
3618 do_spec_1 (" ", 0, NULL_PTR);
3622 /* Dump out the options accumulated previously using -Wp,. */
3624 for (i = 0; i < n_preprocessor_options; i++)
3626 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3627 /* Make each accumulated option a separate argument. */
3628 do_spec_1 (" ", 0, NULL_PTR);
3632 /* Here are digits and numbers that just process
3633 a certain constant string as a spec. */
3636 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3642 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3648 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3654 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3660 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3666 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3672 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3678 value = do_spec_1 (link_spec, 0, NULL_PTR);
3684 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3690 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3697 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3701 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3705 if (! strncmp (y, "-D", 2))
3706 /* Copy the whole option. */
3707 while (*y && *y != ' ' && *y != '\t')
3709 else if (*y == ' ' || *y == '\t')
3710 /* Copy whitespace to the result. */
3712 /* Don't copy other options. */
3719 value = do_spec_1 (buf, 0, NULL_PTR);
3727 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3731 /* Copy all of CPP_PREDEFINES into BUF,
3732 but put __ after every -D and at the end of each arg. */
3736 if (! strncmp (y, "-D", 2))
3744 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3746 /* Stick __ at front of macro name. */
3749 /* Arrange to stick __ at the end as well. */
3753 /* Copy the macro name. */
3754 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3763 /* Copy the value given, if any. */
3764 while (*y && *y != ' ' && *y != '\t')
3767 else if (*y == ' ' || *y == '\t')
3768 /* Copy whitespace to the result. */
3770 /* Don't copy -A options */
3776 /* Copy all of CPP_PREDEFINES into BUF,
3777 but put __ after every -D. */
3781 if (! strncmp (y, "-D", 2))
3786 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3788 /* Stick -D__ at front of macro name. */
3794 /* Copy the macro name. */
3795 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3798 /* Copy the value given, if any. */
3799 while (*y && *y != ' ' && *y != '\t')
3804 /* Do not copy this macro - we have just done it before */
3805 while (*y && *y != ' ' && *y != '\t')
3809 else if (*y == ' ' || *y == '\t')
3810 /* Copy whitespace to the result. */
3812 /* Don't copy -A options */
3818 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3822 if (! strncmp (y, "-A", 2))
3823 /* Copy the whole option. */
3824 while (*y && *y != ' ' && *y != '\t')
3826 else if (*y == ' ' || *y == '\t')
3827 /* Copy whitespace to the result. */
3829 /* Don't copy other options. */
3836 value = do_spec_1 (buf, 0, NULL_PTR);
3843 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3848 /* Here we define characters other than letters and digits. */
3851 p = handle_braces (p);
3857 obstack_1grow (&obstack, '%');
3861 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3862 do_spec_1 (" ", 0, NULL_PTR);
3865 /* Process a string found as the value of a spec given by name.
3866 This feature allows individual machine descriptions
3867 to add and use their own specs.
3868 %[...] modifies -D options the way %P does;
3869 %(...) uses the spec unmodified. */
3874 struct spec_list *sl;
3877 /* The string after the S/P is the name of a spec that is to be
3879 while (*p && *p != ')' && *p != ']')
3882 /* See if it's in the list */
3883 for (len = p - name, sl = specs; sl; sl = sl->next)
3884 if (sl->name_len == len && !strncmp (sl->name, name, len))
3886 name = *(sl->ptr_spec);
3888 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
3889 c, sl->name, (c == '(') ? ')' : ']', name);
3898 value = do_spec_1 (name, 0, NULL_PTR);
3904 char *x = (char *) alloca (strlen (name) * 2 + 1);
3909 /* Copy all of NAME into BUF, but put __ after
3910 every -D and at the end of each arg, */
3913 if (! strncmp (y, "-D", 2))
3923 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3924 || *y == '}' || *y == 0))
3937 value = do_spec_1 (buf, 0, NULL_PTR);
3943 /* Discard the closing paren or bracket. */
3951 int c1 = *p++; /* Select first or second version number. */
3952 char *v = compiler_version;
3955 /* The format of the version string is
3956 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3958 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3959 while (! ISDIGIT (*v))
3961 if (v > compiler_version && v[-1] != '-')
3964 /* If desired, advance to second version number. */
3967 /* Set V after the first period. */
3968 while (ISDIGIT (*v))
3975 /* Set Q at the next period or at the end. */
3977 while (ISDIGIT (*q))
3979 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3982 /* Put that part into the command. */
3983 obstack_grow (&obstack, v, q - v);
3989 if (input_from_pipe)
3990 do_spec_1 ("-", 0, NULL_PTR);
3999 /* Backslash: treat next character as ordinary. */
4004 /* Ordinary character: put it into the current argument. */
4005 obstack_1grow (&obstack, c);
4009 return 0; /* End of string */
4012 /* Return 0 if we call do_spec_1 and that returns -1. */
4023 int include_blanks = 1;
4026 /* A '^' after the open-brace means to not give blanks before args. */
4027 include_blanks = 0, ++p;
4030 /* A `|' after the open-brace means,
4031 if the test fails, output a single minus sign rather than nothing.
4032 This is used in %{|!pipe:...}. */
4036 /* A `!' after the open-brace negates the condition:
4037 succeed if the specified switch is not present. */
4041 /* A `.' after the open-brace means test against the current suffix. */
4051 while (*p != ':' && *p != '}') p++;
4054 register int count = 1;
4072 int found = (input_suffix != 0
4073 && strlen (input_suffix) == p - filter
4074 && strncmp (input_suffix, filter, p - filter) == 0);
4080 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4085 else if (p[-1] == '*' && p[0] == '}')
4087 /* Substitute all matching switches as separate args. */
4090 for (i = 0; i < n_switches; i++)
4091 if (!strncmp (switches[i].part1, filter, p - filter)
4092 && check_live_switch (i, p - filter))
4093 give_switch (i, 0, include_blanks);
4097 /* Test for presence of the specified switch. */
4101 /* If name specified ends in *, as in {x*:...},
4102 check for %* and handle that case. */
4103 if (p[-1] == '*' && !negate)
4108 /* First see whether we have %*. */
4112 if (*r == '%' && r[1] == '*')
4116 /* If we do, handle that case. */
4119 /* Substitute all matching switches as separate args.
4120 But do this by substituting for %*
4121 in the text that follows the colon. */
4123 unsigned hard_match_len = p - filter - 1;
4124 char *string = save_string (p + 1, q - p - 2);
4126 for (i = 0; i < n_switches; i++)
4127 if (!strncmp (switches[i].part1, filter, hard_match_len)
4128 && check_live_switch (i, -1))
4130 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4131 /* Pass any arguments this switch has. */
4132 give_switch (i, 1, 1);
4139 /* If name specified ends in *, as in {x*:...},
4140 check for presence of any switch name starting with x. */
4143 for (i = 0; i < n_switches; i++)
4145 unsigned hard_match_len = p - filter - 1;
4147 if (!strncmp (switches[i].part1, filter, hard_match_len)
4148 && check_live_switch (i, hard_match_len))
4154 /* Otherwise, check for presence of exact name specified. */
4157 for (i = 0; i < n_switches; i++)
4159 if (!strncmp (switches[i].part1, filter, p - filter)
4160 && switches[i].part1[p - filter] == 0
4161 && check_live_switch (i, -1))
4169 /* If it is as desired (present for %{s...}, absent for %{-s...})
4170 then substitute either the switch or the specified
4171 conditional text. */
4172 if (present != negate)
4176 give_switch (i, 0, include_blanks);
4180 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4186 /* Here if a %{|...} conditional fails: output a minus sign,
4187 which means "standard output" or "standard input". */
4188 do_spec_1 ("-", 0, NULL_PTR);
4195 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4196 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4197 spec, or -1 if either exact match or %* is used.
4199 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4200 whose value does not begin with "no-" is obsoleted by the same value
4201 with the "no-", similarly for a switch with the "no-" prefix. */
4204 check_live_switch (switchnum, prefix_length)
4208 char *name = switches[switchnum].part1;
4211 /* In the common case of {<at-most-one-letter>*}, a negating
4212 switch would always match, so ignore that case. We will just
4213 send the conflicting switches to the compiler phase. */
4214 if (prefix_length >= 0 && prefix_length <= 1)
4217 /* If we already processed this switch and determined if it was
4218 live or not, return our past determination. */
4219 if (switches[switchnum].live_cond != 0)
4220 return switches[switchnum].live_cond > 0;
4222 /* Now search for duplicate in a manner that depends on the name. */
4226 for (i = switchnum + 1; i < n_switches; i++)
4227 if (switches[i].part1[0] == 'O')
4229 switches[switchnum].valid = 1;
4230 switches[switchnum].live_cond = -1;
4235 case 'W': case 'f': case 'm':
4236 if (! strncmp (name + 1, "no-", 3))
4238 /* We have Xno-YYY, search for XYYY. */
4239 for (i = switchnum + 1; i < n_switches; i++)
4240 if (switches[i].part1[0] == name[0]
4241 && ! strcmp (&switches[i].part1[1], &name[4]))
4243 switches[switchnum].valid = 1;
4244 switches[switchnum].live_cond = -1;
4250 /* We have XYYY, search for Xno-YYY. */
4251 for (i = switchnum + 1; i < n_switches; i++)
4252 if (switches[i].part1[0] == name[0]
4253 && switches[i].part1[1] == 'n'
4254 && switches[i].part1[2] == 'o'
4255 && switches[i].part1[3] == '-'
4256 && !strcmp (&switches[i].part1[4], &name[1]))
4258 switches[switchnum].valid = 1;
4259 switches[switchnum].live_cond = -1;
4266 /* Otherwise the switch is live. */
4267 switches[switchnum].live_cond = 1;
4271 /* Pass a switch to the current accumulating command
4272 in the same form that we received it.
4273 SWITCHNUM identifies the switch; it is an index into
4274 the vector of switches gcc received, which is `switches'.
4275 This cannot fail since it never finishes a command line.
4277 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4279 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4283 give_switch (switchnum, omit_first_word, include_blanks)
4285 int omit_first_word;
4288 if (!omit_first_word)
4290 do_spec_1 ("-", 0, NULL_PTR);
4291 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4294 if (switches[switchnum].args != 0)
4297 for (p = switches[switchnum].args; *p; p++)
4300 do_spec_1 (" ", 0, NULL_PTR);
4301 do_spec_1 (*p, 1, NULL_PTR);
4305 do_spec_1 (" ", 0, NULL_PTR);
4306 switches[switchnum].valid = 1;
4309 /* Search for a file named NAME trying various prefixes including the
4310 user's -B prefix and some standard ones.
4311 Return the absolute file name found. If nothing is found, return NAME. */
4319 /* Try multilib_dir if it is defined. */
4320 if (multilib_dir != NULL)
4324 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4325 strcpy (try, multilib_dir);
4326 strcat (try, dir_separator_str);
4329 newname = find_a_file (&startfile_prefixes, try, R_OK);
4331 /* If we don't find it in the multi library dir, then fall
4332 through and look for it in the normal places. */
4333 if (newname != NULL)
4337 newname = find_a_file (&startfile_prefixes, name, R_OK);
4338 return newname ? newname : name;
4341 /* Determine whether a directory exists. If LINKER, return 0 for
4342 certain fixed names not needed by the linker. If not LINKER, it is
4343 only important to return 0 if the host machine has a small ARG_MAX
4347 is_directory (path1, path2, linker)
4352 int len1 = strlen (path1);
4353 int len2 = strlen (path2);
4354 char *path = (char *) alloca (3 + len1 + len2);
4358 #ifndef SMALL_ARG_MAX
4363 /* Construct the path from the two parts. Ensure the string ends with "/.".
4364 The resulting path will be a directory even if the given path is a
4366 bcopy (path1, path, len1);
4367 bcopy (path2, path + len1, len2);
4368 cp = path + len1 + len2;
4369 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4370 *cp++ = DIR_SEPARATOR;
4374 /* Exclude directories that the linker is known to search. */
4377 && strcmp (path, concat (dir_separator_str, "lib",
4378 dir_separator_str, ".", NULL_PTR)) == 0)
4380 && strcmp (path, concat (dir_separator_str, "usr",
4381 dir_separator_str, "lib",
4382 dir_separator_str, ".", NULL_PTR)) == 0)))
4385 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4388 /* On fatal signals, delete all the temporary files. */
4391 fatal_error (signum)
4394 signal (signum, SIG_DFL);
4395 delete_failure_queue ();
4396 delete_temp_files ();
4397 /* Get the same signal again, this time not handled,
4398 so its normal effect occurs. */
4399 kill (getpid (), signum);
4410 int linker_was_run = 0;
4411 char *explicit_link_files;
4414 struct user_specs *uptr;
4416 p = argv[0] + strlen (argv[0]);
4417 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4420 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4421 signal (SIGINT, fatal_error);
4423 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4424 signal (SIGHUP, fatal_error);
4426 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4427 signal (SIGTERM, fatal_error);
4429 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4430 signal (SIGPIPE, fatal_error);
4434 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4436 obstack_init (&obstack);
4438 /* Build multilib_select, et. al from the separate lines that make up each
4439 multilib selection. */
4441 char **q = multilib_raw;
4444 obstack_init (&multilib_obstack);
4445 while ((p = *q++) != (char *) 0)
4446 obstack_grow (&multilib_obstack, p, strlen (p));
4448 obstack_1grow (&multilib_obstack, 0);
4449 multilib_select = obstack_finish (&multilib_obstack);
4451 q = multilib_matches_raw;
4452 while ((p = *q++) != (char *) 0)
4453 obstack_grow (&multilib_obstack, p, strlen (p));
4455 obstack_1grow (&multilib_obstack, 0);
4456 multilib_matches = obstack_finish (&multilib_obstack);
4460 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4464 obstack_1grow (&multilib_obstack, ' ');
4465 obstack_grow (&multilib_obstack,
4466 multilib_defaults_raw[i],
4467 strlen (multilib_defaults_raw[i]));
4471 obstack_1grow (&multilib_obstack, 0);
4472 multilib_defaults = obstack_finish (&multilib_obstack);
4475 /* Set up to remember the pathname of gcc and any options
4476 needed for collect. We use argv[0] instead of programname because
4477 we need the complete pathname. */
4478 obstack_init (&collect_obstack);
4479 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4480 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4481 putenv (obstack_finish (&collect_obstack));
4483 #ifdef INIT_ENVIRONMENT
4484 /* Set up any other necessary machine specific environment variables. */
4485 putenv (INIT_ENVIRONMENT);
4488 /* Choose directory for temp files. */
4490 temp_filename = choose_temp_base ();
4491 temp_filename_length = strlen (temp_filename);
4493 /* Make a table of what switches there are (switches, n_switches).
4494 Make a table of specified input files (infiles, n_infiles).
4495 Decode switches that are handled locally. */
4497 process_command (argc, argv);
4502 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4504 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4505 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4508 for (i = 0; i < n_switches; i++)
4513 obstack_grow (&collect_obstack, " ", 1);
4516 obstack_grow (&collect_obstack, "'-", 2);
4517 q = switches[i].part1;
4518 while ((p = index (q,'\'')))
4520 obstack_grow (&collect_obstack, q, p-q);
4521 obstack_grow (&collect_obstack, "'\\''", 4);
4524 obstack_grow (&collect_obstack, q, strlen (q));
4525 obstack_grow (&collect_obstack, "'", 1);
4527 for (args = switches[i].args; args && *args; args++)
4529 obstack_grow (&collect_obstack, " '", 2);
4531 while ((p = index (q,'\'')))
4533 obstack_grow (&collect_obstack, q, p-q);
4534 obstack_grow (&collect_obstack, "'\\''", 4);
4537 obstack_grow (&collect_obstack, q, strlen (q));
4538 obstack_grow (&collect_obstack, "'", 1);
4541 obstack_grow (&collect_obstack, "\0", 1);
4542 putenv (obstack_finish (&collect_obstack));
4545 /* Initialize the vector of specs to just the default.
4546 This means one element containing 0s, as a terminator. */
4548 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4549 bcopy ((char *) default_compilers, (char *) compilers,
4550 sizeof default_compilers);
4551 n_compilers = n_default_compilers;
4553 /* Read specs from a file if there is one. */
4555 machine_suffix = concat (spec_machine, dir_separator_str,
4556 spec_version, dir_separator_str, NULL_PTR);
4557 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4559 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4560 /* Read the specs file unless it is a default one. */
4561 if (specs_file != 0 && strcmp (specs_file, "specs"))
4562 read_specs (specs_file, TRUE);
4566 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4567 for any override of as, ld and libraries. */
4568 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4569 + strlen (just_machine_suffix)
4570 + sizeof ("specs"));
4572 strcpy (specs_file, standard_exec_prefix);
4573 strcat (specs_file, just_machine_suffix);
4574 strcat (specs_file, "specs");
4575 if (access (specs_file, R_OK) == 0)
4576 read_specs (specs_file, TRUE);
4578 /* Process any user specified specs in the order given on the command
4580 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4582 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4583 read_specs (filename ? filename : uptr->filename, FALSE);
4586 /* If not cross-compiling, look for startfiles in the standard places. */
4587 /* The fact that these are done here, after reading the specs file,
4588 means that it cannot be found in these directories.
4589 But that's okay. It should never be there anyway. */
4590 if (*cross_compile == '0')
4592 #ifdef MD_EXEC_PREFIX
4593 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4594 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4597 #ifdef MD_STARTFILE_PREFIX
4598 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4602 #ifdef MD_STARTFILE_PREFIX_1
4603 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
4607 /* If standard_startfile_prefix is relative, base it on
4608 standard_exec_prefix. This lets us move the installed tree
4609 as a unit. If GCC_EXEC_PREFIX is defined, base
4610 standard_startfile_prefix on that as well. */
4611 if (*standard_startfile_prefix == '/'
4612 || *standard_startfile_prefix == DIR_SEPARATOR
4613 || *standard_startfile_prefix == '$'
4615 /* Check for disk name on MS-DOS-based systems. */
4616 || (standard_startfile_prefix[1] == ':'
4617 && (standard_startfile_prefix[2] == DIR_SEPARATOR
4618 || standard_startfile_prefix[2] == '/'))
4621 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
4625 if (gcc_exec_prefix)
4626 add_prefix (&startfile_prefixes,
4627 concat (gcc_exec_prefix, machine_suffix,
4628 standard_startfile_prefix, NULL_PTR),
4629 NULL_PTR, 0, 0, NULL_PTR);
4630 add_prefix (&startfile_prefixes,
4631 concat (standard_exec_prefix,
4633 standard_startfile_prefix, NULL_PTR),
4634 NULL_PTR, 0, 0, NULL_PTR);
4637 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
4638 "BINUTILS", 0, 0, NULL_PTR);
4639 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
4640 "BINUTILS", 0, 0, NULL_PTR);
4641 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4642 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
4647 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4648 add_prefix (&startfile_prefixes,
4649 concat (gcc_exec_prefix, machine_suffix,
4650 standard_startfile_prefix, NULL_PTR),
4651 "BINUTILS", 0, 0, NULL_PTR);
4654 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4655 if (gcc_exec_prefix)
4657 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4658 + strlen (spec_version)
4659 + strlen (spec_machine) + 3);
4660 strcpy (temp, gcc_exec_prefix);
4661 strcat (temp, spec_machine);
4662 strcat (temp, dir_separator_str);
4663 strcat (temp, spec_version);
4664 strcat (temp, dir_separator_str);
4665 gcc_exec_prefix = temp;
4668 /* Now we have the specs.
4669 Set the `valid' bits for switches that match anything in any spec. */
4671 validate_all_switches ();
4673 /* Now that we have the switches and the specs, set
4674 the subdirectory based on the options. */
4675 set_multilib_dir ();
4677 /* Warn about any switches that no pass was interested in. */
4679 for (i = 0; i < n_switches; i++)
4680 if (! switches[i].valid)
4681 error ("unrecognized option `-%s'", switches[i].part1);
4683 /* Obey some of the options. */
4685 if (print_search_dirs)
4687 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4688 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4689 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4693 if (print_file_name)
4695 printf ("%s\n", find_file (print_file_name));
4699 if (print_prog_name)
4701 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4702 printf ("%s\n", (newname ? newname : print_prog_name));
4706 if (print_multi_lib)
4708 print_multilib_info ();
4712 if (print_multi_directory)
4714 if (multilib_dir == NULL)
4717 printf ("%s\n", multilib_dir);
4725 /* compiler_version is truncated at the first space when initialized
4726 from version string, so truncate version_string at the first space
4727 before comparing. */
4728 for (n = 0; version_string[n]; n++)
4729 if (version_string[n] == ' ')
4732 if (! strncmp (version_string, compiler_version, n)
4733 && compiler_version[n] == 0)
4734 fprintf (stderr, "gcc version %s\n", version_string);
4736 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4737 version_string, compiler_version);
4743 if (n_infiles == added_libraries)
4744 fatal ("No input files");
4746 /* Make a place to record the compiler output file names
4747 that correspond to the input files. */
4750 #ifdef LANG_SPECIFIC_DRIVER
4751 i += lang_specific_extra_outfiles;
4753 outfiles = (char **) xmalloc (i * sizeof (char *));
4754 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4756 /* Record which files were specified explicitly as link input. */
4758 explicit_link_files = xmalloc (n_infiles);
4759 bzero (explicit_link_files, n_infiles);
4761 for (i = 0; i < n_infiles; i++)
4763 register struct compiler *cp = 0;
4764 int this_file_error = 0;
4766 /* Tell do_spec what to substitute for %i. */
4768 input_filename = infiles[i].name;
4769 input_filename_length = strlen (input_filename);
4770 input_file_number = i;
4772 /* Use the same thing in %o, unless cp->spec says otherwise. */
4774 outfiles[i] = input_filename;
4776 /* Figure out which compiler from the file's suffix. */
4778 cp = lookup_compiler (infiles[i].name, input_filename_length,
4779 infiles[i].language);
4783 /* Ok, we found an applicable compiler. Run its spec. */
4784 /* First say how much of input_filename to substitute for %b */
4788 if (cp->spec[0][0] == '#')
4789 error ("%s: %s compiler not installed on this system",
4790 input_filename, &cp->spec[0][1]);
4792 input_basename = input_filename;
4793 for (p = input_filename; *p; p++)
4794 if (*p == '/' || *p == DIR_SEPARATOR)
4795 input_basename = p + 1;
4797 /* Find a suffix starting with the last period,
4798 and set basename_length to exclude that suffix. */
4799 basename_length = strlen (input_basename);
4800 p = input_basename + basename_length;
4801 while (p != input_basename && *p != '.') --p;
4802 if (*p == '.' && p != input_basename)
4804 basename_length = p - input_basename;
4805 input_suffix = p + 1;
4811 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4813 len += strlen (cp->spec[j]);
4815 p = (char *) xmalloc (len + 1);
4818 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4821 strcpy (p + len, cp->spec[j]);
4822 len += strlen (cp->spec[j]);
4825 value = do_spec (p);
4828 this_file_error = 1;
4831 /* If this file's name does not contain a recognized suffix,
4832 record it as explicit linker input. */
4835 explicit_link_files[i] = 1;
4837 /* Clear the delete-on-failure queue, deleting the files in it
4838 if this compilation failed. */
4840 if (this_file_error)
4842 delete_failure_queue ();
4845 /* If this compilation succeeded, don't delete those files later. */
4846 clear_failure_queue ();
4849 #ifdef LANG_SPECIFIC_DRIVER
4850 if (error_count == 0
4851 && lang_specific_pre_link ())
4855 /* Run ld to link all the compiler output files. */
4857 if (error_count == 0)
4859 int tmp = execution_count;
4861 /* We'll use ld if we can't find collect2. */
4862 if (! strcmp (linker_name_spec, "collect2"))
4864 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
4866 linker_name_spec = "ld";
4868 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4870 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4871 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4873 value = do_spec (link_command_spec);
4876 linker_was_run = (tmp != execution_count);
4879 /* Warn if a -B option was specified but the prefix was never used. */
4880 unused_prefix_warnings (&exec_prefixes);
4881 unused_prefix_warnings (&startfile_prefixes);
4883 /* If options said don't run linker,
4884 complain about input files to be given to the linker. */
4886 if (! linker_was_run && error_count == 0)
4887 for (i = 0; i < n_infiles; i++)
4888 if (explicit_link_files[i])
4889 error ("%s: linker input file unused since linking not done",
4892 /* Delete some or all of the temporary files we made. */
4895 delete_failure_queue ();
4896 delete_temp_files ();
4898 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4903 /* Find the proper compilation spec for the file name NAME,
4904 whose length is LENGTH. LANGUAGE is the specified language,
4905 or 0 if this file is to be passed to the linker. */
4907 static struct compiler *
4908 lookup_compiler (name, length, language)
4913 struct compiler *cp;
4915 /* If this was specified by the user to be a linker input, indicate that. */
4916 if (language != 0 && language[0] == '*')
4919 /* Otherwise, look for the language, if one is spec'd. */
4922 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4923 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
4926 error ("language %s not recognized", language);
4930 /* Look for a suffix. */
4931 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4933 if (/* The suffix `-' matches only the file name `-'. */
4934 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4935 || (strlen (cp->suffix) < length
4936 /* See if the suffix matches the end of NAME. */
4938 && ((!strcmp (cp->suffix,
4939 name + length - strlen (cp->suffix))
4940 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
4941 && !strcasecmp (cp->suffix,
4942 name + length - strlen (cp->suffix)))
4944 && !strcmp (cp->suffix,
4945 name + length - strlen (cp->suffix))
4949 if (cp->spec[0][0] == '@')
4951 struct compiler *new;
4953 /* An alias entry maps a suffix to a language.
4954 Search for the language; pass 0 for NAME and LENGTH
4955 to avoid infinite recursion if language not found.
4956 Construct the new compiler spec. */
4957 language = cp->spec[0] + 1;
4958 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4959 new->suffix = cp->suffix;
4960 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4961 (char *) new->spec, sizeof new->spec);
4965 /* A non-alias entry: return it. */
4977 register char *value = (char *) malloc (size);
4979 fatal ("virtual memory exhausted");
4984 xrealloc (ptr, size)
4988 register char *value = (char *) realloc (ptr, size);
4990 fatal ("virtual memory exhausted");
4994 /* This function is based on the one in libiberty. */
4997 concat VPROTO((char *first, ...))
4999 register int length;
5000 register char *newstr;
5008 /* First compute the size of the result and get sufficient memory. */
5010 VA_START (args, first);
5012 first = va_arg (args, char *);
5020 length += strlen (arg);
5021 arg = va_arg (args, char *);
5024 newstr = (char *) xmalloc (length + 1);
5027 /* Now copy the individual pieces to the result string. */
5029 VA_START (args, first);
5031 first = va_arg (args, char *);
5040 arg = va_arg (args, char *);
5049 save_string (s, len)
5053 register char *result = xmalloc (len + 1);
5055 bcopy (s, result, len);
5061 pfatal_with_name (name)
5064 fatal ("%s: %s", name, my_strerror (errno));
5068 perror_with_name (name)
5071 error ("%s: %s", name, my_strerror (errno));
5075 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5079 int save_errno = errno;
5083 /* Space for trailing '\0' is in %s. */
5084 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5085 sprintf (msg, errmsg_fmt, errmsg_arg);
5089 fatal ("%s: %s", errmsg_fmt, my_strerror (save_errno));
5092 /* More 'friendly' abort that prints the line and file.
5093 config.h can #define abort fancy_abort if you like that sort of thing. */
5098 fatal ("Internal gcc abort.");
5101 /* Output an error message and exit */
5104 fatal VPROTO((char *format, ...))
5111 VA_START (ap, format);
5114 format = va_arg (ap, char *);
5117 fprintf (stderr, "%s: ", programname);
5118 vfprintf (stderr, format, ap);
5120 fprintf (stderr, "\n");
5121 delete_temp_files ();
5126 error VPROTO((char *format, ...))
5133 VA_START (ap, format);
5136 format = va_arg (ap, char *);
5139 fprintf (stderr, "%s: ", programname);
5140 vfprintf (stderr, format, ap);
5143 fprintf (stderr, "\n");
5147 validate_all_switches ()
5149 struct compiler *comp;
5152 struct spec_list *spec;
5154 for (comp = compilers; comp->spec[0]; comp++)
5157 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5161 if (c == '%' && *p == '{')
5162 /* We have a switch spec. */
5163 validate_switches (p + 1);
5167 /* look through the linked list of specs read from the specs file */
5168 for (spec = specs; spec ; spec = spec->next)
5170 p = *(spec->ptr_spec);
5172 if (c == '%' && *p == '{')
5173 /* We have a switch spec. */
5174 validate_switches (p + 1);
5177 p = link_command_spec;
5179 if (c == '%' && *p == '{')
5180 /* We have a switch spec. */
5181 validate_switches (p + 1);
5184 /* Look at the switch-name that comes after START
5185 and mark as valid all supplied switches that match it. */
5188 validate_switches (start)
5191 register char *p = start;
5206 while (*p != ':' && *p != '}') p++;
5210 else if (p[-1] == '*')
5212 /* Mark all matching switches as valid. */
5214 for (i = 0; i < n_switches; i++)
5215 if (!strncmp (switches[i].part1, filter, p - filter))
5216 switches[i].valid = 1;
5220 /* Mark an exact matching switch as valid. */
5221 for (i = 0; i < n_switches; i++)
5223 if (!strncmp (switches[i].part1, filter, p - filter)
5224 && switches[i].part1[p - filter] == 0)
5225 switches[i].valid = 1;
5230 /* Check whether a particular argument was used. The first time we
5231 canonicalize the switches to keep only the ones we care about. */
5245 static struct mswitchstr *mswitches;
5246 static int n_mswitches;
5251 struct mswitchstr *matches;
5255 /* Break multilib_matches into the component strings of string and replacement
5257 for (q = multilib_matches; *q != '\0'; q++)
5261 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5263 q = multilib_matches;
5274 matches[i].len = q - matches[i].str;
5276 matches[i].replace = ++q;
5277 while (*q != ';' && *q != '\0')
5283 matches[i].rep_len = q - matches[i].replace;
5291 /* Now build a list of the replacement string for switches that we care
5292 about. Make sure we allocate at least one entry. This prevents
5293 xmalloc from calling fatal, and prevents us from re-executing this
5296 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5297 * (n_switches ? n_switches : 1));
5298 for (i = 0; i < n_switches; i++)
5300 int xlen = strlen (switches[i].part1);
5301 for (j = 0; j < cnt; j++)
5302 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5304 mswitches[n_mswitches].str = matches[j].replace;
5305 mswitches[n_mswitches].len = matches[j].rep_len;
5306 mswitches[n_mswitches].replace = (char *)0;
5307 mswitches[n_mswitches].rep_len = 0;
5314 for (i = 0; i < n_mswitches; i++)
5315 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5322 default_arg (p, len)
5328 for (start = multilib_defaults; *start != '\0'; start = end+1)
5330 while (*start == ' ' || *start == '\t')
5336 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5339 if ((end - start) == len && strncmp (p, start, len) == 0)
5349 /* Work out the subdirectory to use based on the
5350 options. The format of multilib_select is a list of elements.
5351 Each element is a subdirectory name followed by a list of options
5352 followed by a semicolon. gcc will consider each line in turn. If
5353 none of the options beginning with an exclamation point are
5354 present, and all of the other options are present, that
5355 subdirectory will be used. */
5360 char *p = multilib_select;
5362 char *this_path, *this_arg;
5368 /* Ignore newlines. */
5375 /* Get the initial path. */
5383 this_path_len = p - this_path;
5385 /* Check the arguments. */
5400 while (*p != ' ' && *p != ';')
5407 if (*this_arg != '!')
5415 /* If this is a default argument, we can just ignore it.
5416 This is true even if this_arg begins with '!'. Beginning
5417 with '!' does not mean that this argument is necessarily
5418 inappropriate for this library: it merely means that
5419 there is a more specific library which uses this
5420 argument. If this argument is a default, we need not
5421 consider that more specific library. */
5422 if (! default_arg (this_arg, p - this_arg))
5424 ok = used_arg (this_arg, p - this_arg);
5435 if (this_path_len != 1
5436 || this_path[0] != '.')
5438 multilib_dir = xmalloc (this_path_len + 1);
5439 strncpy (multilib_dir, this_path, this_path_len);
5440 multilib_dir[this_path_len] = '\0';
5449 /* Print out the multiple library subdirectory selection
5450 information. This prints out a series of lines. Each line looks
5451 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5452 required. Only the desired options are printed out, the negative
5453 matches. The options are print without a leading dash. There are
5454 no spaces to make it easy to use the information in the shell.
5455 Each subdirectory is printed only once. This assumes the ordering
5456 generated by the genmultilib script. */
5459 print_multilib_info ()
5461 char *p = multilib_select;
5462 char *last_path = 0, *this_path;
5464 int last_path_len = 0;
5468 /* Ignore newlines. */
5475 /* Get the initial path. */
5484 /* If this is a duplicate, skip it. */
5485 skip = (last_path != 0 && p - this_path == last_path_len
5486 && ! strncmp (last_path, this_path, last_path_len));
5488 last_path = this_path;
5489 last_path_len = p - this_path;
5491 /* If this directory requires any default arguments, we can skip
5492 it. We will already have printed a directory identical to
5493 this one which does not require that default argument. */
5511 while (*q != ' ' && *q != ';')
5519 && default_arg (arg, q - arg))
5534 for (p1 = last_path; p1 < p; p1++)
5553 use_arg = *p != '!';
5558 while (*p != ' ' && *p != ';')
5573 /* If there are extra options, print them now */
5574 if (multilib_extra && *multilib_extra)
5576 int print_at = TRUE;
5579 for (q = multilib_extra; *q != '\0'; q++)