1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 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". */
34 #include <sys/types.h>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
46 #include "gansidecl.h"
61 /* ??? Need to find a GCC header to put these in. */
62 extern int pexecute PROTO ((const char *, char * const *, const char *,
63 const char *, char **, char **, int));
64 extern int pwait PROTO ((int, int *, int));
65 /* Flag arguments to pexecute. */
66 #define PEXECUTE_FIRST 1
67 #define PEXECUTE_LAST 2
68 #define PEXECUTE_SEARCH 4
71 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
74 #define WTERMSIG(S) ((S) & 0x7f)
77 #define WIFEXITED(S) (((S) & 0xff) == 0)
80 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
83 /* Define O_RDONLY if the system hasn't defined it for us. */
92 /* Test if something is a normal file. */
94 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
97 /* Test if something is a directory. */
99 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
102 /* By default there is no special suffix for executables. */
103 #ifndef EXECUTABLE_SUFFIX
104 #define EXECUTABLE_SUFFIX ""
107 /* By default, the suffix for object files is ".o". */
109 #define HAVE_OBJECT_SUFFIX
111 #define OBJECT_SUFFIX ".o"
114 /* By default, colon separates directories in a path. */
115 #ifndef PATH_SEPARATOR
116 #define PATH_SEPARATOR ':'
119 #ifndef DIR_SEPARATOR
120 #define DIR_SEPARATOR '/'
123 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
125 #define obstack_chunk_alloc xmalloc
126 #define obstack_chunk_free free
129 extern char *getenv ();
131 extern char *choose_temp_base PROTO((void));
137 #ifndef HAVE_STRERROR
140 extern const char *const sys_errlist[];
142 extern char *sys_errlist[];
145 extern char *strerror();
148 /* If a stage of compilation returns an exit status >= 1,
149 compilation of that file ceases. */
151 #define MIN_FATAL_STATUS 1
153 /* Flag saying to print the directories gcc will search through looking for
154 programs, libraries, etc. */
156 static int print_search_dirs;
158 /* Flag saying to print the full filename of this file
159 as found through our usual search mechanism. */
161 static char *print_file_name = NULL;
163 /* As print_file_name, but search for executable file. */
165 static char *print_prog_name = NULL;
167 /* Flag saying to print the relative path we'd use to
168 find libgcc.a given the current compiler flags. */
170 static int print_multi_directory;
172 /* Flag saying to print the list of subdirectories and
173 compiler flags used to select them in a standard form. */
175 static int print_multi_lib;
177 /* Flag indicating whether we should print the command and arguments */
179 static int verbose_flag;
181 /* Nonzero means write "temp" files in source directory
182 and use the source file's name in them, and don't delete them. */
184 static int save_temps_flag;
186 /* The compiler version. */
188 static char *compiler_version;
190 /* The target version specified with -V */
192 static char *spec_version = DEFAULT_TARGET_VERSION;
194 /* The target machine specified with -b. */
196 static char *spec_machine = DEFAULT_TARGET_MACHINE;
198 /* Nonzero if cross-compiling.
199 When -b is used, the value comes from the `specs' file. */
202 static int cross_compile = 1;
204 static int cross_compile = 0;
207 /* The number of errors that have occurred; the link phase will not be
208 run if this is non-zero. */
209 static int error_count = 0;
211 /* This is the obstack which we use to allocate many strings. */
213 static struct obstack obstack;
215 /* This is the obstack to build an environment variable to pass to
216 collect2 that describes all of the relevant switches of what to
217 pass the compiler in building the list of pointers to constructors
220 static struct obstack collect_obstack;
222 extern char *version_string;
224 /* Forward declaration for prototypes. */
227 static void set_spec PROTO((char *, char *));
228 static struct compiler *lookup_compiler PROTO((char *, int, char *));
229 static char *build_search_list PROTO((struct path_prefix *, char *, int));
230 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
231 static char *find_a_file PROTO((struct path_prefix *, char *, int));
232 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
233 static char *skip_whitespace PROTO((char *));
234 static void record_temp_file PROTO((char *, int, int));
235 static void delete_if_ordinary PROTO((char *));
236 static void delete_temp_files PROTO((void));
237 static void delete_failure_queue PROTO((void));
238 static void clear_failure_queue PROTO((void));
239 static int check_live_switch PROTO((int, int));
240 static char *handle_braces PROTO((char *));
241 static char *save_string PROTO((char *, int));
242 static char *concat PVPROTO((char *, ...));
243 static int do_spec PROTO((char *));
244 static int do_spec_1 PROTO((char *, int, char *));
245 static char *find_file PROTO((char *));
246 static int is_directory PROTO((char *, char *, int));
247 static void validate_switches PROTO((char *));
248 static void validate_all_switches PROTO((void));
249 static void give_switch PROTO((int, int));
250 static int used_arg PROTO((char *, int));
251 static int default_arg PROTO((char *, int));
252 static void set_multilib_dir PROTO((void));
253 static void print_multilib_info PROTO((void));
254 static void pfatal_with_name PROTO((char *));
255 static void perror_with_name PROTO((char *));
256 static void pfatal_pexecute PROTO((char *, char *));
258 static void fatal PVPROTO((char *, ...));
259 static void error PVPROTO((char *, ...));
261 /* We must not provide any prototype here, even if ANSI C. */
262 static void fatal PROTO(());
263 static void error PROTO(());
270 /* Specs are strings containing lines, each of which (if not blank)
271 is made up of a program name, and arguments separated by spaces.
272 The program name must be exact and start from root, since no path
273 is searched and it is unreliable to depend on the current working directory.
274 Redirection of input or output is not supported; the subprograms must
275 accept filenames saying what files to read and write.
277 In addition, the specs can contain %-sequences to substitute variable text
278 or for conditional text. Here is a table of all defined %-sequences.
279 Note that spaces are not generated automatically around the results of
280 expanding these sequences; therefore, you can concatenate them together
281 or with constant text in a single argument.
283 %% substitute one % into the program name or argument.
284 %i substitute the name of the input file being processed.
285 %b substitute the basename of the input file being processed.
286 This is the substring up to (and not including) the last period
287 and not including the directory.
288 %g substitute the temporary-file-name-base. This is a string chosen
289 once per compilation. Different temporary file names are made by
290 concatenation of constant strings on the end, as in `%g.s'.
291 %g also has the same effect of %d.
292 %u like %g, but make the temporary file name unique.
293 %U returns the last file name generated with %u.
294 %d marks the argument containing or following the %d as a
295 temporary file name, so that that file will be deleted if CC exits
296 successfully. Unlike %g, this contributes no text to the argument.
297 %w marks the argument containing or following the %w as the
298 "output file" of this compilation. This puts the argument
299 into the sequence of arguments that %o will substitute later.
301 like %{...} but mark last argument supplied within
302 as a file to be deleted on failure.
303 %o substitutes the names of all the output files, with spaces
304 automatically placed around them. You should write spaces
305 around the %o as well or the results are undefined.
306 %o is for use in the specs for running the linker.
307 Input files whose names have no recognized suffix are not compiled
308 at all, but they are included among the output files, so they will
310 %O substitutes the suffix for object files.
311 %p substitutes the standard macro predefinitions for the
312 current target machine. Use this when running cpp.
313 %P like %p, but puts `__' before and after the name of each macro.
314 (Except macros that already have __.)
316 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
317 %s current argument is the name of a library or startup file of some sort.
318 Search for that file in a standard list of directories
319 and substitute the full name found.
320 %eSTR Print STR as an error message. STR is terminated by a newline.
321 Use this when inconsistent options are detected.
322 %x{OPTION} Accumulate an option for %X.
323 %X Output the accumulated linker options specified by compilations.
324 %Y Output the accumulated assembler options specified by compilations.
325 %Z Output the accumulated preprocessor options specified by compilations.
326 %v1 Substitute the major version number of GCC.
327 (For version 2.5.n, this is 2.)
328 %v2 Substitute the minor version number of GCC.
329 (For version 2.5.n, this is 5.)
330 %a process ASM_SPEC as a spec.
331 This allows config.h to specify part of the spec for running as.
332 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
333 used here. This can be used to run a post-processor after the
334 assembler has done it's job.
335 %D Dump out a -L option for each directory in startfile_prefixes.
336 If multilib_dir is set, extra entries are generated with it affixed.
337 %l process LINK_SPEC as a spec.
338 %L process LIB_SPEC as a spec.
339 %G process LIBGCC_SPEC as a spec.
340 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
341 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
342 %c process SIGNED_CHAR_SPEC as a spec.
343 %C process CPP_SPEC as a spec. A capital C is actually used here.
344 %1 process CC1_SPEC as a spec.
345 %2 process CC1PLUS_SPEC as a spec.
346 %| output "-" if the input for the current command is coming from a pipe.
347 %* substitute the variable part of a matched option. (See below.)
348 Note that each comma in the substituted string is replaced by
350 %{S} substitutes the -S switch, if that switch was given to CC.
351 If that switch was not specified, this substitutes nothing.
352 Here S is a metasyntactic variable.
353 %{S*} substitutes all the switches specified to CC whose names start
354 with -S. This is used for -o, -D, -I, etc; switches that take
355 arguments. CC considers `-o foo' as being one switch whose
356 name starts with `o'. %{o*} would substitute this text,
357 including the space; thus, two arguments would be generated.
358 %{S*:X} substitutes X if one or more switches whose names start with -S are
359 specified to CC. Note that the tail part of the -S option
360 (i.e. the part matched by the `*') will be substituted for each
361 occurrence of %* within X.
362 %{S:X} substitutes X, but only if the -S switch was given to CC.
363 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
364 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
365 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
366 %{.S:X} substitutes X, but only if processing a file with suffix S.
367 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
368 %(Spec) processes a specification defined in a specs file as *Spec:
369 %[Spec] as above, but put __ around -D arguments
371 The conditional text X in a %{S:X} or %{!S:X} construct may contain
372 other nested % constructs or spaces, or even newlines. They are
373 processed as usual, as described above.
375 The -O, -f, -m, and -W switches are handled specifically in these
376 constructs. If another value of -O or the negated form of a -f, -m, or
377 -W switch is found later in the command line, the earlier switch
378 value is ignored, except with {S*} where S is just one letter; this
379 passes all matching options.
381 The character | is used to indicate that a command should be piped to
382 the following command, but only if -pipe is specified.
384 Note that it is built into CC which switches take arguments and which
385 do not. You might think it would be useful to generalize this to
386 allow each compiler's spec to say which switches take arguments. But
387 this cannot be done in a consistent fashion. CC cannot even decide
388 which input files have been specified without knowing which switches
389 take arguments, and it must know which input files to compile in order
390 to tell which compilers to run.
392 CC also knows implicitly that arguments starting in `-l' are to be
393 treated as compiler output files, and passed to the linker in their
394 proper position among the other output files. */
396 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
398 /* config.h can define ASM_SPEC to provide extra args to the assembler
399 or extra switch-translations. */
404 /* config.h can define ASM_FINAL_SPEC to run a post processor after
405 the assembler has run. */
406 #ifndef ASM_FINAL_SPEC
407 #define ASM_FINAL_SPEC ""
410 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
411 or extra switch-translations. */
416 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
417 or extra switch-translations. */
422 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
423 or extra switch-translations. */
425 #define CC1PLUS_SPEC ""
428 /* config.h can define LINK_SPEC to provide extra args to the linker
429 or extra switch-translations. */
434 /* config.h can define LIB_SPEC to override the default libraries. */
436 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
439 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
442 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
443 /* Have gcc do the search for libgcc.a. */
444 #define LIBGCC_SPEC "libgcc.a%s"
446 #define LIBGCC_SPEC "-lgcc"
450 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
451 #ifndef STARTFILE_SPEC
452 #define STARTFILE_SPEC \
453 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
456 /* config.h can define SWITCHES_NEED_SPACES to control which options
457 require spaces between the option and the argument. */
458 #ifndef SWITCHES_NEED_SPACES
459 #define SWITCHES_NEED_SPACES ""
462 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
464 #define ENDFILE_SPEC ""
467 /* This spec is used for telling cpp whether char is signed or not. */
468 #ifndef SIGNED_CHAR_SPEC
469 /* Use #if rather than ?:
470 because MIPS C compiler rejects like ?: in initializers. */
471 #if DEFAULT_SIGNED_CHAR
472 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
474 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
478 static char *cpp_spec = CPP_SPEC;
479 static char *cpp_predefines = CPP_PREDEFINES;
480 static char *cc1_spec = CC1_SPEC;
481 static char *cc1plus_spec = CC1PLUS_SPEC;
482 static char *signed_char_spec = SIGNED_CHAR_SPEC;
483 static char *asm_spec = ASM_SPEC;
484 static char *asm_final_spec = ASM_FINAL_SPEC;
485 static char *link_spec = LINK_SPEC;
486 static char *lib_spec = LIB_SPEC;
487 static char *libgcc_spec = LIBGCC_SPEC;
488 static char *endfile_spec = ENDFILE_SPEC;
489 static char *startfile_spec = STARTFILE_SPEC;
490 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
492 /* Some compilers have limits on line lengths, and the multilib_select
493 string can be very long, so we build it at run time. */
494 static struct obstack multilib_obstack;
495 static char *multilib_raw[] = {
496 #include "multilib.h"
498 static char *multilib_select;
501 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
504 /* This defines which switch letters take arguments. */
506 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
507 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
508 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
509 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
510 || (CHAR) == 'L' || (CHAR) == 'A')
512 #ifndef SWITCH_TAKES_ARG
513 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
516 /* This defines which multi-letter switches take arguments. */
518 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
519 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
520 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
521 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
522 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
523 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
524 || !strcmp (STR, "isystem"))
526 #ifndef WORD_SWITCH_TAKES_ARG
527 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
530 /* Record the mapping from file suffixes for compilation specs. */
534 char *suffix; /* Use this compiler for input files
535 whose names end in this suffix. */
537 char *spec[4]; /* To use this compiler, concatenate these
538 specs and pass to do_spec. */
541 /* Pointer to a vector of `struct compiler' that gives the spec for
542 compiling a file, based on its suffix.
543 A file that does not end in any of these suffixes will be passed
544 unchanged to the loader and nothing else will be done to it.
546 An entry containing two 0s is used to terminate the vector.
548 If multiple entries match a file, the last matching one is used. */
550 static struct compiler *compilers;
552 /* Number of entries in `compilers', not counting the null terminator. */
554 static int n_compilers;
556 /* The default list of file name suffixes and their compilation specs. */
558 static struct compiler default_compilers[] =
562 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
563 %{C:%{!E:%eGNU C does not support -C without using -E}}\
564 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
565 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
566 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
567 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
568 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
569 %{traditional-cpp:-traditional}\
570 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
571 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
572 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
573 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
574 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
575 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
577 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
578 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
580 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
581 %{!pipe:%g.s} %A\n }}}}"},
583 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
584 %{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
586 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
587 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
588 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
589 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
590 %{traditional-cpp:-traditional}\
591 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
593 %{!E:%e-E required when input is from standard input}"},
594 {".m", "@objective-c"},
596 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
597 %{C:%{!E:%eGNU C does not support -C without using -E}}\
598 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
599 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
600 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
601 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
602 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
603 %{traditional-cpp:-traditional}\
604 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
605 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
606 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
607 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
608 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
609 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
610 -lang-objc %{gen-decls} \
612 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
613 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
615 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
616 %{!pipe:%g.s} %A\n }}}}"},
619 "%{!E:%eCompilation of header file requested} \
620 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
621 %{C:%{!E:%eGNU C does not support -C without using -E}}\
622 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
623 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
624 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
625 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
626 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
627 %{traditional-cpp:-traditional}\
628 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
630 {".i", "@cpp-output"},
632 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
633 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
634 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
636 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
637 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
639 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
640 %{!pipe:%g.s} %A\n }}}}"},
641 {".s", "@assembler"},
643 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
644 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
646 {".S", "@assembler-with-cpp"},
647 {"@assembler-with-cpp",
648 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
649 %{C:%{!E:%eGNU C does not support -C without using -E}}\
650 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
651 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
652 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
653 %{traditional-cpp:-traditional}\
654 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
655 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
656 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
657 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
658 %{!pipe:%g.s} %A\n }}}}"},
660 /* Mark end of table */
664 /* Number of elements in default_compilers, not counting the terminator. */
666 static int n_default_compilers
667 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
669 /* Here is the spec for running the linker, after compiling all files. */
671 /* -u* was put back because both BSD and SysV seem to support it. */
672 /* %{static:} simply prevents an error message if the target machine
673 doesn't handle -static. */
674 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
675 scripts which exist in user specified directories, or in standard
677 #ifdef LINK_LIBGCC_SPECIAL
678 /* Don't generate -L options. */
679 static char *link_command_spec = "\
681 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
682 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
683 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
684 %{static:} %{L*} %{T*} %o\
685 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
686 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
689 static char *link_command_spec = "\
691 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
692 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
693 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
694 %{static:} %{L*} %D %{T*} %o\
695 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
696 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
699 /* A vector of options to give to the linker.
700 These options are accumulated by %x,
701 and substituted into the linker command with %X. */
702 static int n_linker_options;
703 static char **linker_options;
705 /* A vector of options to give to the assembler.
706 These options are accumulated by -Wa,
707 and substituted into the assembler command with %Y. */
708 static int n_assembler_options;
709 static char **assembler_options;
711 /* A vector of options to give to the preprocessor.
712 These options are accumulated by -Wp,
713 and substituted into the preprocessor command with %Z. */
714 static int n_preprocessor_options;
715 static char **preprocessor_options;
717 /* Define how to map long options into short ones. */
719 /* This structure describes one mapping. */
722 /* The long option's name. */
724 /* The equivalent short option. */
726 /* Argument info. A string of flag chars; NULL equals no options.
727 a => argument required.
728 o => argument optional.
729 j => join argument to equivalent, making one word.
730 * => require other text after NAME as an argument. */
734 /* This is the table of mappings. Mappings are tried sequentially
735 for each option encountered; the first one that matches, wins. */
737 struct option_map option_map[] =
739 {"--all-warnings", "-Wall", 0},
740 {"--ansi", "-ansi", 0},
741 {"--assemble", "-S", 0},
742 {"--assert", "-A", "a"},
743 {"--comments", "-C", 0},
744 {"--compile", "-c", 0},
745 {"--debug", "-g", "oj"},
746 {"--define-macro", "-D", "a"},
747 {"--dependencies", "-M", 0},
748 {"--dump", "-d", "a"},
749 {"--dumpbase", "-dumpbase", "a"},
750 {"--entry", "-e", 0},
751 {"--extra-warnings", "-W", 0},
752 {"--for-assembler", "-Wa", "a"},
753 {"--for-linker", "-Xlinker", "a"},
754 {"--force-link", "-u", "a"},
755 {"--imacros", "-imacros", "a"},
756 {"--include", "-include", "a"},
757 {"--include-barrier", "-I-", 0},
758 {"--include-directory", "-I", "a"},
759 {"--include-directory-after", "-idirafter", "a"},
760 {"--include-prefix", "-iprefix", "a"},
761 {"--include-with-prefix", "-iwithprefix", "a"},
762 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
763 {"--include-with-prefix-after", "-iwithprefix", "a"},
764 {"--language", "-x", "a"},
765 {"--library-directory", "-L", "a"},
766 {"--machine", "-m", "aj"},
767 {"--machine-", "-m", "*j"},
768 {"--no-line-commands", "-P", 0},
769 {"--no-precompiled-includes", "-noprecomp", 0},
770 {"--no-standard-includes", "-nostdinc", 0},
771 {"--no-standard-libraries", "-nostdlib", 0},
772 {"--no-warnings", "-w", 0},
773 {"--optimize", "-O", "oj"},
774 {"--output", "-o", "a"},
775 {"--pedantic", "-pedantic", 0},
776 {"--pedantic-errors", "-pedantic-errors", 0},
777 {"--pipe", "-pipe", 0},
778 {"--prefix", "-B", "a"},
779 {"--preprocess", "-E", 0},
780 {"--print-search-dirs", "-print-search-dirs", 0},
781 {"--print-file-name", "-print-file-name=", "aj"},
782 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
783 {"--print-missing-file-dependencies", "-MG", 0},
784 {"--print-multi-lib", "-print-multi-lib", 0},
785 {"--print-multi-directory", "-print-multi-directory", 0},
786 {"--print-prog-name", "-print-prog-name=", "aj"},
787 {"--profile", "-p", 0},
788 {"--profile-blocks", "-a", 0},
789 {"--quiet", "-q", 0},
790 {"--save-temps", "-save-temps", 0},
791 {"--shared", "-shared", 0},
792 {"--silent", "-q", 0},
793 {"--static", "-static", 0},
794 {"--symbolic", "-symbolic", 0},
795 {"--target", "-b", "a"},
796 {"--trace-includes", "-H", 0},
797 {"--traditional", "-traditional", 0},
798 {"--traditional-cpp", "-traditional-cpp", 0},
799 {"--trigraphs", "-trigraphs", 0},
800 {"--undefine-macro", "-U", "a"},
801 {"--use-version", "-V", "a"},
802 {"--user-dependencies", "-MM", 0},
803 {"--verbose", "-v", 0},
804 {"--version", "-dumpversion", 0},
805 {"--warn-", "-W", "*j"},
806 {"--write-dependencies", "-MD", 0},
807 {"--write-user-dependencies", "-MMD", 0},
811 /* Translate the options described by *ARGCP and *ARGVP.
812 Make a new vector and store it back in *ARGVP,
813 and store its length in *ARGVC. */
816 translate_options (argcp, argvp)
822 char **argv = *argvp;
823 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
827 newv[newindex++] = argv[i++];
831 /* Translate -- options. */
832 if (argv[i][0] == '-' && argv[i][1] == '-')
834 /* Find a mapping that applies to this option. */
835 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
837 int optlen = strlen (option_map[j].name);
838 int arglen = strlen (argv[i]);
839 int complen = arglen > optlen ? optlen : arglen;
840 char *arginfo = option_map[j].arg_info;
845 if (!strncmp (argv[i], option_map[j].name, complen))
852 k < sizeof (option_map) / sizeof (option_map[0]);
854 if (strlen (option_map[k].name) >= arglen
855 && !strncmp (argv[i], option_map[k].name, arglen))
857 error ("Ambiguous abbreviation %s", argv[i]);
861 if (k != sizeof (option_map) / sizeof (option_map[0]))
867 /* If the option has an argument, accept that. */
868 if (argv[i][optlen] == '=')
869 arg = argv[i] + optlen + 1;
871 /* If this mapping requires extra text at end of name,
872 accept that as "argument". */
873 else if (index (arginfo, '*') != 0)
874 arg = argv[i] + optlen;
876 /* Otherwise, extra text at end means mismatch.
877 Try other mappings. */
882 else if (index (arginfo, '*') != 0)
884 error ("Incomplete `%s' option", option_map[j].name);
888 /* Handle arguments. */
889 if (index (arginfo, 'a') != 0)
895 error ("Missing argument to `%s' option",
903 else if (index (arginfo, '*') != 0)
905 else if (index (arginfo, 'o') == 0)
908 error ("Extraneous argument to `%s' option",
913 /* Store the translation as one argv elt or as two. */
914 if (arg != 0 && index (arginfo, 'j') != 0)
915 newv[newindex++] = concat (option_map[j].equivalent, arg,
919 newv[newindex++] = option_map[j].equivalent;
920 newv[newindex++] = arg;
923 newv[newindex++] = option_map[j].equivalent;
931 /* Handle old-fashioned options--just copy them through,
932 with their arguments. */
933 else if (argv[i][0] == '-')
935 char *p = argv[i] + 1;
939 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
940 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
941 else if (WORD_SWITCH_TAKES_ARG (p))
942 nskip += WORD_SWITCH_TAKES_ARG (p);
943 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
946 else if (! strcmp (p, "Xlinker"))
949 /* Watch out for an option at the end of the command line that
950 is missing arguments, and avoid skipping past the end of the
952 if (nskip + i > argc)
957 newv[newindex++] = argv[i++];
962 /* Ordinary operands, or +e options. */
963 newv[newindex++] = argv[i++];
982 static char buffer[30];
984 return "cannot access";
986 if (e > 0 && e < sys_nerr)
987 return sys_errlist[e];
989 sprintf (buffer, "Unknown error %d", e);
994 /* Read compilation specs from a file named FILENAME,
995 replacing the default ones.
997 A suffix which starts with `*' is a definition for
998 one of the machine-specific sub-specs. The "suffix" should be
999 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1000 The corresponding spec is stored in asm_spec, etc.,
1001 rather than in the `compilers' vector.
1003 Anything invalid in the file is a fatal error. */
1006 read_specs (filename)
1011 struct stat statbuf;
1016 fprintf (stderr, "Reading specs from %s\n", filename);
1018 /* Open and stat the file. */
1019 desc = open (filename, O_RDONLY, 0);
1021 pfatal_with_name (filename);
1022 if (stat (filename, &statbuf) < 0)
1023 pfatal_with_name (filename);
1025 /* Read contents of file into BUFFER. */
1026 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1027 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1029 pfatal_with_name (filename);
1030 buffer[readlen] = 0;
1033 /* Scan BUFFER for specs, putting them in the vector. */
1039 char *in, *out, *p1, *p2;
1041 /* Advance P in BUFFER to the next nonblank nocomment line. */
1042 p = skip_whitespace (p);
1046 /* Find the colon that should end the suffix. */
1048 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1049 /* The colon shouldn't be missing. */
1051 fatal ("specs file malformed after %d characters", p1 - buffer);
1052 /* Skip back over trailing whitespace. */
1054 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1055 /* Copy the suffix to a string. */
1056 suffix = save_string (p, p2 - p);
1057 /* Find the next line. */
1058 p = skip_whitespace (p1 + 1);
1060 fatal ("specs file malformed after %d characters", p - buffer);
1062 /* Find next blank line. */
1063 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1064 /* Specs end at the blank line and do not include the newline. */
1065 spec = save_string (p, p1 - p);
1068 /* Delete backslash-newline sequences from the spec. */
1073 if (in[0] == '\\' && in[1] == '\n')
1075 else if (in[0] == '#')
1077 while (*in && *in != '\n') in++;
1084 if (suffix[0] == '*')
1086 if (! strcmp (suffix, "*link_command"))
1087 link_command_spec = spec;
1089 set_spec (suffix + 1, spec);
1093 /* Add this pair to the vector. */
1095 = ((struct compiler *)
1096 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1097 compilers[n_compilers].suffix = suffix;
1098 bzero ((char *) compilers[n_compilers].spec,
1099 sizeof compilers[n_compilers].spec);
1100 compilers[n_compilers].spec[0] = spec;
1102 bzero ((char *) &compilers[n_compilers],
1103 sizeof compilers[n_compilers]);
1107 link_command_spec = spec;
1110 if (link_command_spec == 0)
1111 fatal ("spec file has no spec for linking");
1120 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1121 be considered whitespace. */
1122 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1124 else if (*p == '\n' || *p == ' ' || *p == '\t')
1128 while (*p != '\n') p++;
1138 /* Structure to keep track of the specs that have been defined so far. These
1139 are accessed using %(specname) or %[specname] in a compiler or link spec. */
1143 char *name; /* Name of the spec. */
1144 char *spec; /* The spec itself. */
1145 struct spec_list *next; /* Next spec in linked list. */
1148 /* List of specs that have been defined so far. */
1150 static struct spec_list *specs = (struct spec_list *) 0;
1152 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1153 removed; If the spec starts with a + then SPEC is added to the end of the
1157 set_spec (name, spec)
1161 struct spec_list *sl;
1164 /* See if the spec already exists */
1165 for (sl = specs; sl; sl = sl->next)
1166 if (strcmp (sl->name, name) == 0)
1171 /* Not found - make it */
1172 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1173 sl->name = save_string (name, strlen (name));
1174 sl->spec = save_string ("", 0);
1179 old_spec = sl->spec;
1180 if (name && spec[0] == '+' && isspace (spec[1]))
1181 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1183 sl->spec = save_string (spec, strlen (spec));
1185 if (! strcmp (name, "asm"))
1186 asm_spec = sl->spec;
1187 else if (! strcmp (name, "asm_final"))
1188 asm_final_spec = sl->spec;
1189 else if (! strcmp (name, "cc1"))
1190 cc1_spec = sl->spec;
1191 else if (! strcmp (name, "cc1plus"))
1192 cc1plus_spec = sl->spec;
1193 else if (! strcmp (name, "cpp"))
1194 cpp_spec = sl->spec;
1195 else if (! strcmp (name, "endfile"))
1196 endfile_spec = sl->spec;
1197 else if (! strcmp (name, "lib"))
1198 lib_spec = sl->spec;
1199 else if (! strcmp (name, "libgcc"))
1200 libgcc_spec = sl->spec;
1201 else if (! strcmp (name, "link"))
1202 link_spec = sl->spec;
1203 else if (! strcmp (name, "predefines"))
1204 cpp_predefines = sl->spec;
1205 else if (! strcmp (name, "signed_char"))
1206 signed_char_spec = sl->spec;
1207 else if (! strcmp (name, "startfile"))
1208 startfile_spec = sl->spec;
1209 else if (! strcmp (name, "switches_need_spaces"))
1210 switches_need_spaces = sl->spec;
1211 else if (! strcmp (name, "cross_compile"))
1212 cross_compile = atoi (sl->spec);
1213 else if (! strcmp (name, "multilib"))
1214 multilib_select = sl->spec;
1219 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1221 if (! strcmp (name, extra_specs[i].name))
1223 extra_specs[i].spec = sl->spec;
1230 /* Free the old spec */
1235 /* Accumulate a command (program name and args), and run it. */
1237 /* Vector of pointers to arguments in the current line of specifications. */
1239 static char **argbuf;
1241 /* Number of elements allocated in argbuf. */
1243 static int argbuf_length;
1245 /* Number of elements in argbuf currently in use (containing args). */
1247 static int argbuf_index;
1249 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1250 temp file. Used only if MKTEMP_EACH_FILE. */
1252 static struct temp_name {
1253 char *suffix; /* suffix associated with the code. */
1254 int length; /* strlen (suffix). */
1255 int unique; /* Indicates whether %g or %u/%U was used. */
1256 char *filename; /* associated filename. */
1257 int filename_length; /* strlen (filename). */
1258 struct temp_name *next;
1261 /* Number of commands executed so far. */
1263 static int execution_count;
1265 /* Number of commands that exited with a signal. */
1267 static int signal_count;
1269 /* Name with which this program was invoked. */
1271 static char *programname;
1273 /* Structures to keep track of prefixes to try when looking for files. */
1277 char *prefix; /* String to prepend to the path. */
1278 struct prefix_list *next; /* Next in linked list. */
1279 int require_machine_suffix; /* Don't use without machine_suffix. */
1280 /* 2 means try both machine_suffix and just_machine_suffix. */
1281 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1286 struct prefix_list *plist; /* List of prefixes to try */
1287 int max_len; /* Max length of a prefix in PLIST */
1288 char *name; /* Name of this list (used in config stuff) */
1291 /* List of prefixes to try when looking for executables. */
1293 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1295 /* List of prefixes to try when looking for startup (crt0) files. */
1297 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1299 /* List of prefixes to try when looking for include files. */
1301 static struct path_prefix include_prefixes = { 0, 0, "include" };
1303 /* Suffix to attach to directories searched for commands.
1304 This looks like `MACHINE/VERSION/'. */
1306 static char *machine_suffix = 0;
1308 /* Suffix to attach to directories searched for commands.
1309 This is just `MACHINE/'. */
1311 static char *just_machine_suffix = 0;
1313 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1315 static char *gcc_exec_prefix;
1317 /* Default prefixes to attach to command names. */
1319 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1320 #undef MD_EXEC_PREFIX
1321 #undef MD_STARTFILE_PREFIX
1322 #undef MD_STARTFILE_PREFIX_1
1325 #ifndef STANDARD_EXEC_PREFIX
1326 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1327 #endif /* !defined STANDARD_EXEC_PREFIX */
1329 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1330 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1331 #ifdef MD_EXEC_PREFIX
1332 static char *md_exec_prefix = MD_EXEC_PREFIX;
1335 #ifndef STANDARD_STARTFILE_PREFIX
1336 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1337 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1339 #ifdef MD_STARTFILE_PREFIX
1340 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1342 #ifdef MD_STARTFILE_PREFIX_1
1343 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1345 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1346 static char *standard_startfile_prefix_1 = "/lib/";
1347 static char *standard_startfile_prefix_2 = "/usr/lib/";
1349 #ifndef TOOLDIR_BASE_PREFIX
1350 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1352 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1353 static char *tooldir_prefix;
1355 /* Subdirectory to use for locating libraries. Set by
1356 set_multilib_dir based on the compilation options. */
1358 static char *multilib_dir;
1360 /* Clear out the vector of arguments (after a command is executed). */
1368 /* Add one argument to the vector at the end.
1369 This is done when a space is seen or at the end of the line.
1370 If DELETE_ALWAYS is nonzero, the arg is a filename
1371 and the file should be deleted eventually.
1372 If DELETE_FAILURE is nonzero, the arg is a filename
1373 and the file should be deleted if this compilation fails. */
1376 store_arg (arg, delete_always, delete_failure)
1378 int delete_always, delete_failure;
1380 if (argbuf_index + 1 == argbuf_length)
1382 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1385 argbuf[argbuf_index++] = arg;
1386 argbuf[argbuf_index] = 0;
1388 if (delete_always || delete_failure)
1389 record_temp_file (arg, delete_always, delete_failure);
1392 /* Record the names of temporary files we tell compilers to write,
1393 and delete them at the end of the run. */
1395 /* This is the common prefix we use to make temp file names.
1396 It is chosen once for each run of this program.
1397 It is substituted into a spec by %g.
1398 Thus, all temp file names contain this prefix.
1399 In practice, all temp file names start with this prefix.
1401 This prefix comes from the envvar TMPDIR if it is defined;
1402 otherwise, from the P_tmpdir macro if that is defined;
1403 otherwise, in /usr/tmp or /tmp;
1404 or finally the current directory if all else fails. */
1406 static char *temp_filename;
1408 /* Length of the prefix. */
1410 static int temp_filename_length;
1412 /* Define the list of temporary files to delete. */
1417 struct temp_file *next;
1420 /* Queue of files to delete on success or failure of compilation. */
1421 static struct temp_file *always_delete_queue;
1422 /* Queue of files to delete on failure of compilation. */
1423 static struct temp_file *failure_delete_queue;
1425 /* Record FILENAME as a file to be deleted automatically.
1426 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1427 otherwise delete it in any case.
1428 FAIL_DELETE nonzero means delete it if a compilation step fails;
1429 otherwise delete it in any case. */
1432 record_temp_file (filename, always_delete, fail_delete)
1437 register char *name;
1438 name = xmalloc (strlen (filename) + 1);
1439 strcpy (name, filename);
1443 register struct temp_file *temp;
1444 for (temp = always_delete_queue; temp; temp = temp->next)
1445 if (! strcmp (name, temp->name))
1447 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1448 temp->next = always_delete_queue;
1450 always_delete_queue = temp;
1456 register struct temp_file *temp;
1457 for (temp = failure_delete_queue; temp; temp = temp->next)
1458 if (! strcmp (name, temp->name))
1460 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1461 temp->next = failure_delete_queue;
1463 failure_delete_queue = temp;
1468 /* Delete all the temporary files whose names we previously recorded. */
1471 delete_if_ordinary (name)
1478 printf ("Delete %s? (y or n) ", name);
1482 while ((c = getchar ()) != '\n' && c != EOF) ;
1483 if (i == 'y' || i == 'Y')
1485 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1486 if (unlink (name) < 0)
1488 perror_with_name (name);
1492 delete_temp_files ()
1494 register struct temp_file *temp;
1496 for (temp = always_delete_queue; temp; temp = temp->next)
1497 delete_if_ordinary (temp->name);
1498 always_delete_queue = 0;
1501 /* Delete all the files to be deleted on error. */
1504 delete_failure_queue ()
1506 register struct temp_file *temp;
1508 for (temp = failure_delete_queue; temp; temp = temp->next)
1509 delete_if_ordinary (temp->name);
1513 clear_failure_queue ()
1515 failure_delete_queue = 0;
1518 /* Routine to add variables to the environment. We do this to pass
1519 the pathname of the gcc driver, and the directories search to the
1520 collect2 program, which is being run as ld. This way, we can be
1521 sure of executing the right compiler when collect2 wants to build
1522 constructors and destructors. Since the environment variables we
1523 use come from an obstack, we don't have to worry about allocating
1532 #ifndef VMS /* nor about VMS */
1534 extern char **environ;
1535 char **old_environ = environ;
1539 int str_len = strlen (str);
1543 while ((ch = *p++) != '\0' && ch != '=')
1549 /* Search for replacing an existing environment variable, and
1550 count the number of total environment variables. */
1551 for (envp = old_environ; *envp; envp++)
1554 if (!strncmp (str, *envp, name_len))
1561 /* Add a new environment variable */
1562 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1564 bcopy ((char *) old_environ, (char *) (environ + 1),
1565 sizeof (char *) * (num_envs+1));
1570 #endif /* HAVE_PUTENV */
1573 /* Build a list of search directories from PATHS.
1574 PREFIX is a string to prepend to the list.
1575 If CHECK_DIR_P is non-zero we ensure the directory exists.
1576 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1577 It is also used by the --print-search-dirs flag. */
1580 build_search_list (paths, prefix, check_dir_p)
1581 struct path_prefix *paths;
1585 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1587 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1588 int first_time = TRUE;
1589 struct prefix_list *pprefix;
1591 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1593 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1595 int len = strlen (pprefix->prefix);
1599 || is_directory (pprefix->prefix, machine_suffix, 0)))
1602 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1605 obstack_grow (&collect_obstack, pprefix->prefix, len);
1606 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1609 if (just_machine_suffix
1610 && pprefix->require_machine_suffix == 2
1612 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1615 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1618 obstack_grow (&collect_obstack, pprefix->prefix, len);
1619 obstack_grow (&collect_obstack, just_machine_suffix,
1623 if (!pprefix->require_machine_suffix)
1626 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1629 obstack_grow (&collect_obstack, pprefix->prefix, len);
1632 obstack_1grow (&collect_obstack, '\0');
1633 return obstack_finish (&collect_obstack);
1636 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables for collect. */
1639 putenv_from_prefixes (paths, env_var)
1640 struct path_prefix *paths;
1643 putenv (build_search_list (paths, env_var, 1));
1646 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1647 access to check permissions.
1648 Return 0 if not found, otherwise return its name, allocated with malloc. */
1651 find_a_file (pprefix, name, mode)
1652 struct path_prefix *pprefix;
1657 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1658 struct prefix_list *pl;
1659 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1662 len += strlen (machine_suffix);
1664 temp = xmalloc (len);
1666 /* Determine the filename to execute (special case for absolute paths). */
1668 if (*name == '/' || *name == DIR_SEPARATOR)
1670 if (access (name, mode))
1672 strcpy (temp, name);
1677 for (pl = pprefix->plist; pl; pl = pl->next)
1681 /* Some systems have a suffix for executable files.
1682 So try appending that first. */
1683 if (file_suffix[0] != 0)
1685 strcpy (temp, pl->prefix);
1686 strcat (temp, machine_suffix);
1687 strcat (temp, name);
1688 strcat (temp, file_suffix);
1689 if (access (temp, mode) == 0)
1691 if (pl->used_flag_ptr != 0)
1692 *pl->used_flag_ptr = 1;
1697 /* Now try just the name. */
1698 strcpy (temp, pl->prefix);
1699 strcat (temp, machine_suffix);
1700 strcat (temp, name);
1701 if (access (temp, mode) == 0)
1703 if (pl->used_flag_ptr != 0)
1704 *pl->used_flag_ptr = 1;
1709 /* Certain prefixes are tried with just the machine type,
1710 not the version. This is used for finding as, ld, etc. */
1711 if (just_machine_suffix && pl->require_machine_suffix == 2)
1713 /* Some systems have a suffix for executable files.
1714 So try appending that first. */
1715 if (file_suffix[0] != 0)
1717 strcpy (temp, pl->prefix);
1718 strcat (temp, just_machine_suffix);
1719 strcat (temp, name);
1720 strcat (temp, file_suffix);
1721 if (access (temp, mode) == 0)
1723 if (pl->used_flag_ptr != 0)
1724 *pl->used_flag_ptr = 1;
1729 strcpy (temp, pl->prefix);
1730 strcat (temp, just_machine_suffix);
1731 strcat (temp, name);
1732 if (access (temp, mode) == 0)
1734 if (pl->used_flag_ptr != 0)
1735 *pl->used_flag_ptr = 1;
1740 /* Certain prefixes can't be used without the machine suffix
1741 when the machine or version is explicitly specified. */
1742 if (!pl->require_machine_suffix)
1744 /* Some systems have a suffix for executable files.
1745 So try appending that first. */
1746 if (file_suffix[0] != 0)
1748 strcpy (temp, pl->prefix);
1749 strcat (temp, name);
1750 strcat (temp, file_suffix);
1751 if (access (temp, mode) == 0)
1753 if (pl->used_flag_ptr != 0)
1754 *pl->used_flag_ptr = 1;
1759 strcpy (temp, pl->prefix);
1760 strcat (temp, name);
1761 if (access (temp, mode) == 0)
1763 if (pl->used_flag_ptr != 0)
1764 *pl->used_flag_ptr = 1;
1774 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1775 at the start of the list, otherwise it goes at the end.
1777 If WARN is nonzero, we will warn if no file is found
1778 through this prefix. WARN should point to an int
1779 which will be set to 1 if this entry is used.
1781 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1782 the complete value of machine_suffix.
1783 2 means try both machine_suffix and just_machine_suffix. */
1786 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1787 struct path_prefix *pprefix;
1790 int require_machine_suffix;
1793 struct prefix_list *pl, **prev;
1796 if (!first && pprefix->plist)
1798 for (pl = pprefix->plist; pl->next; pl = pl->next)
1803 prev = &pprefix->plist;
1805 /* Keep track of the longest prefix */
1807 len = strlen (prefix);
1808 if (len > pprefix->max_len)
1809 pprefix->max_len = len;
1811 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1812 pl->prefix = save_string (prefix, len);
1813 pl->require_machine_suffix = require_machine_suffix;
1814 pl->used_flag_ptr = warn;
1821 pl->next = (struct prefix_list *) 0;
1825 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1828 unused_prefix_warnings (pprefix)
1829 struct path_prefix *pprefix;
1831 struct prefix_list *pl = pprefix->plist;
1835 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1837 if (pl->require_machine_suffix && machine_suffix)
1838 error ("file path prefix `%s%s' never used", pl->prefix,
1841 error ("file path prefix `%s' never used", pl->prefix);
1843 /* Prevent duplicate warnings. */
1844 *pl->used_flag_ptr = 1;
1850 /* Get rid of all prefixes built up so far in *PLISTP. */
1853 free_path_prefix (pprefix)
1854 struct path_prefix *pprefix;
1856 struct prefix_list *pl = pprefix->plist;
1857 struct prefix_list *temp;
1863 free (temp->prefix);
1864 free ((char *) temp);
1866 pprefix->plist = (struct prefix_list *) 0;
1869 /* Execute the command specified by the arguments on the current line of spec.
1870 When using pipes, this includes several piped-together commands
1871 with `|' between them.
1873 Return 0 if successful, -1 if failed. */
1879 int n_commands; /* # of command. */
1883 char *prog; /* program name. */
1884 char **argv; /* vector of args. */
1885 int pid; /* pid of process for this command. */
1888 struct command *commands; /* each command buffer with above info. */
1890 /* Count # of piped commands. */
1891 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1892 if (strcmp (argbuf[i], "|") == 0)
1895 /* Get storage for each command. */
1897 = (struct command *) alloca (n_commands * sizeof (struct command));
1899 /* Split argbuf into its separate piped processes,
1900 and record info about each one.
1901 Also search for the programs that are to be run. */
1903 commands[0].prog = argbuf[0]; /* first command. */
1904 commands[0].argv = &argbuf[0];
1905 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1907 commands[0].argv[0] = string;
1909 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1910 if (strcmp (argbuf[i], "|") == 0)
1911 { /* each command. */
1912 #if defined (__MSDOS__) || defined (_WIN32) || defined (OS2)
1913 fatal ("-pipe not supported");
1915 argbuf[i] = 0; /* termination of command args. */
1916 commands[n_commands].prog = argbuf[i + 1];
1917 commands[n_commands].argv = &argbuf[i + 1];
1918 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1920 commands[n_commands].argv[0] = string;
1924 argbuf[argbuf_index] = 0;
1926 /* If -v, print what we are about to do, and maybe query. */
1930 /* Print each piped command as a separate line. */
1931 for (i = 0; i < n_commands ; i++)
1935 for (j = commands[i].argv; *j; j++)
1936 fprintf (stderr, " %s", *j);
1938 /* Print a pipe symbol after all but the last command. */
1939 if (i + 1 != n_commands)
1940 fprintf (stderr, " |");
1941 fprintf (stderr, "\n");
1945 fprintf (stderr, "\nGo ahead? (y or n) ");
1949 while (getchar () != '\n') ;
1950 if (i != 'y' && i != 'Y')
1955 /* Run each piped subprocess. */
1957 for (i = 0; i < n_commands; i++)
1959 char *errmsg_fmt, *errmsg_arg;
1960 char *string = commands[i].argv[0];
1962 commands[i].pid = pexecute (string, commands[i].argv,
1963 programname, temp_filename,
1964 &errmsg_fmt, &errmsg_arg,
1965 ((i == 0 ? PEXECUTE_FIRST : 0)
1966 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
1967 | (string == commands[i].prog
1968 ? PEXECUTE_SEARCH : 0)));
1970 if (commands[i].pid == -1)
1971 pfatal_pexecute (errmsg_fmt, errmsg_arg);
1973 if (string != commands[i].prog)
1979 /* Wait for all the subprocesses to finish.
1980 We don't care what order they finish in;
1981 we know that N_COMMANDS waits will get them all.
1982 Ignore subprocesses that we don't know about,
1983 since they can be spawned by the process that exec'ed us. */
1988 for (i = 0; i < n_commands; )
1994 pid = pwait (commands[i].pid, &status, 0);
1998 for (j = 0; j < n_commands; j++)
1999 if (commands[j].pid == pid)
2004 if (WIFSIGNALED (status))
2006 fatal ("Internal compiler error: program %s got fatal signal %d",
2007 commands[j].prog, WTERMSIG (status));
2011 else if (WIFEXITED (status)
2012 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2022 /* Find all the switches given to us
2023 and make a vector describing them.
2024 The elements of the vector are strings, one per switch given.
2025 If a switch uses following arguments, then the `part1' field
2026 is the switch itself and the `args' field
2027 is a null-terminated vector containing the following arguments.
2028 The `live_cond' field is 1 if the switch is true in a conditional spec,
2029 -1 if false (overridden by a later switch), and is initialized to zero.
2030 The `valid' field is nonzero if any spec has looked at this switch;
2031 if it remains zero at the end of the run, it must be meaningless. */
2041 static struct switchstr *switches;
2043 static int n_switches;
2051 /* Also a vector of input files specified. */
2053 static struct infile *infiles;
2055 static int n_infiles;
2057 /* And a vector of corresponding output files is made up later. */
2059 static char **outfiles;
2061 /* Used to track if none of the -B paths are used. */
2064 /* Used to track if standard path isn't used and -b or -V is specified. */
2065 static int warn_std;
2067 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2068 static int *warn_std_ptr = 0;
2070 /* Create the vector `switches' and its contents.
2071 Store its length in `n_switches'. */
2074 process_command (argc, argv)
2080 char *spec_lang = 0;
2081 int last_language_n_infiles;
2084 int lang_n_infiles = 0;
2086 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2091 /* Figure compiler version from version string. */
2093 compiler_version = save_string (version_string, strlen (version_string));
2094 for (temp = compiler_version; *temp; ++temp)
2103 /* Set up the default search paths. */
2105 if (gcc_exec_prefix)
2107 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2108 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2111 /* COMPILER_PATH and LIBRARY_PATH have values
2112 that are lists of directory names with colons. */
2114 temp = getenv ("COMPILER_PATH");
2117 char *startp, *endp;
2118 char *nstore = (char *) alloca (strlen (temp) + 3);
2120 startp = endp = temp;
2123 if (*endp == PATH_SEPARATOR || *endp == 0)
2125 strncpy (nstore, startp, endp-startp);
2127 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2128 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2130 nstore[endp-startp] = DIR_SEPARATOR;
2131 nstore[endp-startp+1] = 0;
2134 nstore[endp-startp] = 0;
2135 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2138 endp = startp = endp + 1;
2145 temp = getenv ("LIBRARY_PATH");
2146 if (temp && ! cross_compile)
2148 char *startp, *endp;
2149 char *nstore = (char *) alloca (strlen (temp) + 3);
2151 startp = endp = temp;
2154 if (*endp == PATH_SEPARATOR || *endp == 0)
2156 strncpy (nstore, startp, endp-startp);
2158 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2159 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2161 nstore[endp-startp] = DIR_SEPARATOR;
2162 nstore[endp-startp+1] = 0;
2165 nstore[endp-startp] = 0;
2166 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2169 endp = startp = endp + 1;
2176 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2177 temp = getenv ("LPATH");
2178 if (temp && ! cross_compile)
2180 char *startp, *endp;
2181 char *nstore = (char *) alloca (strlen (temp) + 3);
2183 startp = endp = temp;
2186 if (*endp == PATH_SEPARATOR || *endp == 0)
2188 strncpy (nstore, startp, endp-startp);
2190 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2191 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2193 nstore[endp-startp] = DIR_SEPARATOR;
2194 nstore[endp-startp+1] = 0;
2197 nstore[endp-startp] = 0;
2198 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2201 endp = startp = endp + 1;
2208 /* Convert new-style -- options to old-style. */
2209 translate_options (&argc, &argv);
2211 /* Scan argv twice. Here, the first time, just count how many switches
2212 there will be in their vector, and how many input files in theirs.
2213 Here we also parse the switches that cc itself uses (e.g. -v). */
2215 for (i = 1; i < argc; i++)
2217 if (! strcmp (argv[i], "-dumpspecs"))
2219 printf ("*asm:\n%s\n\n", asm_spec);
2220 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2221 printf ("*cpp:\n%s\n\n", cpp_spec);
2222 printf ("*cc1:\n%s\n\n", cc1_spec);
2223 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2224 printf ("*endfile:\n%s\n\n", endfile_spec);
2225 printf ("*link:\n%s\n\n", link_spec);
2226 printf ("*lib:\n%s\n\n", lib_spec);
2227 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2228 printf ("*startfile:\n%s\n\n", startfile_spec);
2229 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2230 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2231 printf ("*predefines:\n%s\n\n", cpp_predefines);
2232 printf ("*cross_compile:\n%d\n\n", cross_compile);
2233 printf ("*multilib:\n%s\n\n", multilib_select);
2238 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2239 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2240 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2245 else if (! strcmp (argv[i], "-dumpversion"))
2247 printf ("%s\n", version_string);
2250 else if (! strcmp (argv[i], "-dumpmachine"))
2252 printf ("%s\n", spec_machine);
2255 else if (! strcmp (argv[i], "-print-search-dirs"))
2256 print_search_dirs = 1;
2257 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2258 print_file_name = "libgcc.a";
2259 else if (! strncmp (argv[i], "-print-file-name=", 17))
2260 print_file_name = argv[i] + 17;
2261 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2262 print_prog_name = argv[i] + 17;
2263 else if (! strcmp (argv[i], "-print-multi-lib"))
2264 print_multi_lib = 1;
2265 else if (! strcmp (argv[i], "-print-multi-directory"))
2266 print_multi_directory = 1;
2267 else if (! strncmp (argv[i], "-Wa,", 4))
2270 /* Pass the rest of this option to the assembler. */
2272 n_assembler_options++;
2273 if (!assembler_options)
2275 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2278 = (char **) xrealloc (assembler_options,
2279 n_assembler_options * sizeof (char **));
2281 /* Split the argument at commas. */
2283 for (j = 4; argv[i][j]; j++)
2284 if (argv[i][j] == ',')
2286 assembler_options[n_assembler_options - 1]
2287 = save_string (argv[i] + prev, j - prev);
2288 n_assembler_options++;
2290 = (char **) xrealloc (assembler_options,
2291 n_assembler_options * sizeof (char **));
2294 /* Record the part after the last comma. */
2295 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2297 else if (! strncmp (argv[i], "-Wp,", 4))
2300 /* Pass the rest of this option to the preprocessor. */
2302 n_preprocessor_options++;
2303 if (!preprocessor_options)
2304 preprocessor_options
2305 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2307 preprocessor_options
2308 = (char **) xrealloc (preprocessor_options,
2309 n_preprocessor_options * sizeof (char **));
2311 /* Split the argument at commas. */
2313 for (j = 4; argv[i][j]; j++)
2314 if (argv[i][j] == ',')
2316 preprocessor_options[n_preprocessor_options - 1]
2317 = save_string (argv[i] + prev, j - prev);
2318 n_preprocessor_options++;
2319 preprocessor_options
2320 = (char **) xrealloc (preprocessor_options,
2321 n_preprocessor_options * sizeof (char **));
2324 /* Record the part after the last comma. */
2325 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2327 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2328 /* The +e options to the C++ front-end. */
2330 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2333 /* Split the argument at commas. */
2334 for (j = 3; argv[i][j]; j++)
2335 n_infiles += (argv[i][j] == ',');
2337 else if (strcmp (argv[i], "-Xlinker") == 0)
2340 fatal ("argument to `-Xlinker' is missing");
2345 else if (strncmp (argv[i], "-l", 2) == 0)
2347 else if (strcmp (argv[i], "-save-temps") == 0)
2349 save_temps_flag = 1;
2352 else if (argv[i][0] == '-' && argv[i][1] != 0)
2354 register char *p = &argv[i][1];
2355 register int c = *p;
2360 if (p[1] == 0 && i + 1 == argc)
2361 fatal ("argument to `-b' is missing");
2363 spec_machine = argv[++i];
2365 spec_machine = p + 1;
2367 warn_std_ptr = &warn_std;
2372 int *temp = (int *) xmalloc (sizeof (int));
2374 if (p[1] == 0 && i + 1 == argc)
2375 fatal ("argument to `-B' is missing");
2380 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2381 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2382 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2385 /* As a kludge, if the arg is "[foo/]stageN/", just add
2386 "[foo/]include" to the include prefix. */
2388 int len = strlen (value);
2391 && (value[len - 8] == '/'
2392 || value[len - 8] == DIR_SEPARATOR)))
2393 && strncmp (value + len - 7, "stage", 5) == 0
2394 && isdigit (value[len - 2])
2395 && (value[len - 1] == '/'
2396 || value[len - 1] == DIR_SEPARATOR))
2399 add_prefix (&include_prefixes, "include",
2403 char *string = xmalloc (len + 1);
2404 strncpy (string, value, len-7);
2405 strcat (string, "include");
2406 add_prefix (&include_prefixes, string,
2414 case 'v': /* Print our subcommands and print versions. */
2416 /* If they do anything other than exactly `-v', don't set
2417 verbose_flag; rather, continue on to give the error. */
2424 if (p[1] == 0 && i + 1 == argc)
2425 fatal ("argument to `-V' is missing");
2427 spec_version = argv[++i];
2429 spec_version = p + 1;
2430 compiler_version = spec_version;
2431 warn_std_ptr = &warn_std;
2451 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2452 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2453 else if (WORD_SWITCH_TAKES_ARG (p))
2454 i += WORD_SWITCH_TAKES_ARG (p);
2464 if (have_c && have_o && lang_n_infiles > 1)
2465 fatal ("cannot specify -o with -c and multiple compilations");
2467 /* Set up the search paths before we go looking for config files. */
2469 /* These come before the md prefixes so that we will find gcc's subcommands
2470 (such as cpp) rather than those of the host system. */
2471 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2472 as well as trying the machine and the version. */
2474 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2475 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2478 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2479 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2481 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2482 dir_separator_str, NULL_PTR);
2484 /* If tooldir is relative, base it on exec_prefixes. A relative
2485 tooldir lets us move the installed tree as a unit.
2487 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2488 directories, so that we can search both the user specified directory
2489 and the standard place. */
2491 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2493 if (gcc_exec_prefix)
2495 char *gcc_exec_tooldir_prefix
2496 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2497 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2499 add_prefix (&exec_prefixes,
2500 concat (gcc_exec_tooldir_prefix, "bin",
2501 dir_separator_str, NULL_PTR),
2503 add_prefix (&startfile_prefixes,
2504 concat (gcc_exec_tooldir_prefix, "lib",
2505 dir_separator_str, NULL_PTR),
2509 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2510 dir_separator_str, spec_version,
2511 dir_separator_str, tooldir_prefix, NULL_PTR);
2514 add_prefix (&exec_prefixes,
2515 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2517 add_prefix (&startfile_prefixes,
2518 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2521 /* More prefixes are enabled in main, after we read the specs file
2522 and determine whether this is cross-compilation or not. */
2525 /* Then create the space for the vectors and scan again. */
2527 switches = ((struct switchstr *)
2528 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2529 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2532 last_language_n_infiles = -1;
2534 /* This, time, copy the text of each switch and store a pointer
2535 to the copy in the vector of switches.
2536 Store all the infiles in their vector. */
2538 for (i = 1; i < argc; i++)
2540 /* Just skip the switches that were handled by the preceding loop. */
2541 if (! strncmp (argv[i], "-Wa,", 4))
2543 else if (! strncmp (argv[i], "-Wp,", 4))
2545 else if (! strcmp (argv[i], "-print-search-dirs"))
2547 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2549 else if (! strncmp (argv[i], "-print-file-name=", 17))
2551 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2553 else if (! strcmp (argv[i], "-print-multi-lib"))
2555 else if (! strcmp (argv[i], "-print-multi-directory"))
2557 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2559 /* Compensate for the +e options to the C++ front-end;
2560 they're there simply for cfront call-compatibility. We do
2561 some magic in default_compilers to pass them down properly.
2562 Note we deliberately start at the `+' here, to avoid passing
2563 -e0 or -e1 down into the linker. */
2564 switches[n_switches].part1 = &argv[i][0];
2565 switches[n_switches].args = 0;
2566 switches[n_switches].live_cond = 0;
2567 switches[n_switches].valid = 0;
2570 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2573 /* Split the argument at commas. */
2575 for (j = 4; argv[i][j]; j++)
2576 if (argv[i][j] == ',')
2578 infiles[n_infiles].language = 0;
2579 infiles[n_infiles++].name
2580 = save_string (argv[i] + prev, j - prev);
2583 /* Record the part after the last comma. */
2584 infiles[n_infiles].language = 0;
2585 infiles[n_infiles++].name = argv[i] + prev;
2587 else if (strcmp (argv[i], "-Xlinker") == 0)
2589 infiles[n_infiles].language = 0;
2590 infiles[n_infiles++].name = argv[++i];
2592 else if (strncmp (argv[i], "-l", 2) == 0)
2594 infiles[n_infiles].language = 0;
2595 infiles[n_infiles++].name = argv[i];
2597 else if (argv[i][0] == '-' && argv[i][1] != 0)
2599 register char *p = &argv[i][1];
2600 register int c = *p;
2602 if (c == 'B' || c == 'b' || c == 'V')
2604 /* Skip a separate arg, if any. */
2611 if (p[1] == 0 && i + 1 == argc)
2612 fatal ("argument to `-x' is missing");
2614 spec_lang = argv[++i];
2617 if (! strcmp (spec_lang, "none"))
2618 /* Suppress the warning if -xnone comes after the last input
2619 file, because alternate command interfaces like g++ might
2620 find it useful to place -xnone after each input file. */
2623 last_language_n_infiles = n_infiles;
2626 switches[n_switches].part1 = p;
2627 /* Deal with option arguments in separate argv elements. */
2628 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2629 || WORD_SWITCH_TAKES_ARG (p))
2632 int n_args = WORD_SWITCH_TAKES_ARG (p);
2636 /* Count only the option arguments in separate argv elements. */
2637 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2639 if (i + n_args >= argc)
2640 fatal ("argument to `-%s' is missing", p);
2641 switches[n_switches].args
2642 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2644 switches[n_switches].args[j++] = argv[++i];
2645 /* Null-terminate the vector. */
2646 switches[n_switches].args[j] = 0;
2648 else if (index (switches_need_spaces, c))
2650 /* On some systems, ld cannot handle some options without
2651 a space. So split the option from its argument. */
2652 char *part1 = (char *) xmalloc (2);
2656 switches[n_switches].part1 = part1;
2657 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2658 switches[n_switches].args[0] = xmalloc (strlen (p));
2659 strcpy (switches[n_switches].args[0], &p[1]);
2660 switches[n_switches].args[1] = 0;
2663 switches[n_switches].args = 0;
2665 switches[n_switches].live_cond = 0;
2666 switches[n_switches].valid = 0;
2667 /* This is always valid, since gcc.c itself understands it. */
2668 if (!strcmp (p, "save-temps"))
2669 switches[n_switches].valid = 1;
2674 #ifdef HAVE_OBJECT_SUFFIX
2675 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2676 if (strlen (argv[i]) > 2
2677 && argv[i][strlen (argv[i]) - 2] == '.'
2678 && argv[i][strlen (argv[i]) - 1] == 'o')
2682 for (j = 0; j < strlen (argv[i]) - 2; j++)
2683 obstack_1grow (&obstack, argv[i][j]);
2685 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2686 obstack_1grow (&obstack, 0);
2687 argv[i] = obstack_finish (&obstack);
2691 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2693 perror_with_name (argv[i]);
2698 infiles[n_infiles].language = spec_lang;
2699 infiles[n_infiles++].name = argv[i];
2704 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2705 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2707 switches[n_switches].part1 = 0;
2708 infiles[n_infiles].name = 0;
2711 /* Process a spec string, accumulating and running commands. */
2713 /* These variables describe the input file name.
2714 input_file_number is the index on outfiles of this file,
2715 so that the output file name can be stored for later use by %o.
2716 input_basename is the start of the part of the input file
2717 sans all directory names, and basename_length is the number
2718 of characters starting there excluding the suffix .c or whatever. */
2720 static char *input_filename;
2721 static int input_file_number;
2722 static int input_filename_length;
2723 static int basename_length;
2724 static char *input_basename;
2725 static char *input_suffix;
2727 /* These are variables used within do_spec and do_spec_1. */
2729 /* Nonzero if an arg has been started and not yet terminated
2730 (with space, tab or newline). */
2731 static int arg_going;
2733 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2734 is a temporary file name. */
2735 static int delete_this_arg;
2737 /* Nonzero means %w has been seen; the next arg to be terminated
2738 is the output file name of this compilation. */
2739 static int this_is_output_file;
2741 /* Nonzero means %s has been seen; the next arg to be terminated
2742 is the name of a library file and we should try the standard
2743 search dirs for it. */
2744 static int this_is_library_file;
2746 /* Nonzero means that the input of this command is coming from a pipe. */
2747 static int input_from_pipe;
2749 /* Process the spec SPEC and run the commands specified therein.
2750 Returns 0 if the spec is successfully processed; -1 if failed. */
2760 delete_this_arg = 0;
2761 this_is_output_file = 0;
2762 this_is_library_file = 0;
2763 input_from_pipe = 0;
2765 value = do_spec_1 (spec, 0, NULL_PTR);
2767 /* Force out any unfinished command.
2768 If -pipe, this forces out the last command if it ended in `|'. */
2771 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2774 if (argbuf_index > 0)
2781 /* Process the sub-spec SPEC as a portion of a larger spec.
2782 This is like processing a whole spec except that we do
2783 not initialize at the beginning and we do not supply a
2784 newline by default at the end.
2785 INSWITCH nonzero means don't process %-sequences in SPEC;
2786 in this case, % is treated as an ordinary character.
2787 This is used while substituting switches.
2788 INSWITCH nonzero also causes SPC not to terminate an argument.
2790 Value is zero unless a line was finished
2791 and the command on that line reported an error. */
2794 do_spec_1 (spec, inswitch, soft_matched_part)
2797 char *soft_matched_part;
2799 register char *p = spec;
2806 /* If substituting a switch, treat all chars like letters.
2807 Otherwise, NL, SPC, TAB and % are special. */
2808 switch (inswitch ? 'a' : c)
2811 /* End of line: finish any pending argument,
2812 then run the pending command if one has been started. */
2815 obstack_1grow (&obstack, 0);
2816 string = obstack_finish (&obstack);
2817 if (this_is_library_file)
2818 string = find_file (string);
2819 store_arg (string, delete_this_arg, this_is_output_file);
2820 if (this_is_output_file)
2821 outfiles[input_file_number] = string;
2825 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2827 for (i = 0; i < n_switches; i++)
2828 if (!strcmp (switches[i].part1, "pipe"))
2831 /* A `|' before the newline means use a pipe here,
2832 but only if -pipe was specified.
2833 Otherwise, execute now and don't pass the `|' as an arg. */
2836 input_from_pipe = 1;
2837 switches[i].valid = 1;
2844 if (argbuf_index > 0)
2850 /* Reinitialize for a new command, and for a new argument. */
2853 delete_this_arg = 0;
2854 this_is_output_file = 0;
2855 this_is_library_file = 0;
2856 input_from_pipe = 0;
2860 /* End any pending argument. */
2863 obstack_1grow (&obstack, 0);
2864 string = obstack_finish (&obstack);
2865 if (this_is_library_file)
2866 string = find_file (string);
2867 store_arg (string, delete_this_arg, this_is_output_file);
2868 if (this_is_output_file)
2869 outfiles[input_file_number] = string;
2873 obstack_1grow (&obstack, c);
2879 /* Space or tab ends an argument if one is pending. */
2882 obstack_1grow (&obstack, 0);
2883 string = obstack_finish (&obstack);
2884 if (this_is_library_file)
2885 string = find_file (string);
2886 store_arg (string, delete_this_arg, this_is_output_file);
2887 if (this_is_output_file)
2888 outfiles[input_file_number] = string;
2890 /* Reinitialize for a new argument. */
2892 delete_this_arg = 0;
2893 this_is_output_file = 0;
2894 this_is_library_file = 0;
2901 fatal ("Invalid specification! Bug in cc.");
2904 obstack_grow (&obstack, input_basename, basename_length);
2909 delete_this_arg = 2;
2912 /* Dump out the directories specified with LIBRARY_PATH,
2913 followed by the absolute directories
2914 that we search for startfiles. */
2917 struct prefix_list *pl = startfile_prefixes.plist;
2919 char *buffer = (char *) xmalloc (bufsize);
2922 for (; pl; pl = pl->next)
2924 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2925 /* Used on systems which record the specified -L dirs
2926 and use them to search for dynamic linking. */
2927 /* Relative directories always come from -B,
2928 and it is better not to use them for searching
2929 at run time. In particular, stage1 loses */
2930 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
2933 /* Try subdirectory if there is one. */
2934 if (multilib_dir != NULL)
2938 if (strlen (pl->prefix) + strlen (machine_suffix)
2940 bufsize = (strlen (pl->prefix)
2941 + strlen (machine_suffix)) * 2 + 1;
2942 buffer = (char *) xrealloc (buffer, bufsize);
2943 strcpy (buffer, pl->prefix);
2944 strcat (buffer, machine_suffix);
2945 if (is_directory (buffer, multilib_dir, 1))
2947 do_spec_1 ("-L", 0, NULL_PTR);
2948 #ifdef SPACE_AFTER_L_OPTION
2949 do_spec_1 (" ", 0, NULL_PTR);
2951 do_spec_1 (buffer, 1, NULL_PTR);
2952 do_spec_1 (multilib_dir, 1, NULL_PTR);
2953 /* Make this a separate argument. */
2954 do_spec_1 (" ", 0, NULL_PTR);
2957 if (!pl->require_machine_suffix)
2959 if (is_directory (pl->prefix, multilib_dir, 1))
2961 do_spec_1 ("-L", 0, NULL_PTR);
2962 #ifdef SPACE_AFTER_L_OPTION
2963 do_spec_1 (" ", 0, NULL_PTR);
2965 do_spec_1 (pl->prefix, 1, NULL_PTR);
2966 do_spec_1 (multilib_dir, 1, NULL_PTR);
2967 /* Make this a separate argument. */
2968 do_spec_1 (" ", 0, NULL_PTR);
2974 if (is_directory (pl->prefix, machine_suffix, 1))
2976 do_spec_1 ("-L", 0, NULL_PTR);
2977 #ifdef SPACE_AFTER_L_OPTION
2978 do_spec_1 (" ", 0, NULL_PTR);
2980 do_spec_1 (pl->prefix, 1, NULL_PTR);
2981 /* Remove slash from machine_suffix. */
2982 if (strlen (machine_suffix) >= bufsize)
2983 bufsize = strlen (machine_suffix) * 2 + 1;
2984 buffer = (char *) xrealloc (buffer, bufsize);
2985 strcpy (buffer, machine_suffix);
2986 idx = strlen (buffer);
2987 if (buffer[idx - 1] == '/'
2988 || buffer[idx - 1] == DIR_SEPARATOR)
2989 buffer[idx - 1] = 0;
2990 do_spec_1 (buffer, 1, NULL_PTR);
2991 /* Make this a separate argument. */
2992 do_spec_1 (" ", 0, NULL_PTR);
2995 if (!pl->require_machine_suffix)
2997 if (is_directory (pl->prefix, "", 1))
2999 do_spec_1 ("-L", 0, NULL_PTR);
3000 #ifdef SPACE_AFTER_L_OPTION
3001 do_spec_1 (" ", 0, NULL_PTR);
3003 /* Remove slash from pl->prefix. */
3004 if (strlen (pl->prefix) >= bufsize)
3005 bufsize = strlen (pl->prefix) * 2 + 1;
3006 buffer = (char *) xrealloc (buffer, bufsize);
3007 strcpy (buffer, pl->prefix);
3008 idx = strlen (buffer);
3009 if (buffer[idx - 1] == '/'
3010 || buffer[idx - 1] == DIR_SEPARATOR)
3011 buffer[idx - 1] = 0;
3012 do_spec_1 (buffer, 1, NULL_PTR);
3013 /* Make this a separate argument. */
3014 do_spec_1 (" ", 0, NULL_PTR);
3023 /* {...:%efoo} means report an error with `foo' as error message
3024 and don't execute any more commands for this file. */
3028 while (*p != 0 && *p != '\n') p++;
3029 buf = (char *) alloca (p - q + 1);
3030 strncpy (buf, q, p - q);
3040 if (save_temps_flag)
3042 obstack_grow (&obstack, input_basename, basename_length);
3043 delete_this_arg = 0;
3047 #ifdef MKTEMP_EACH_FILE
3048 /* ??? This has a problem: the total number of
3049 values mktemp can return is limited.
3050 That matters for the names of object files.
3051 In 2.4, do something about that. */
3052 struct temp_name *t;
3054 while (*p == '.' || isalpha (*p)
3055 || (p[0] == '%' && p[1] == 'O'))
3058 /* See if we already have an association of %g/%u/%U and
3060 for (t = temp_names; t; t = t->next)
3061 if (t->length == p - suffix
3062 && strncmp (t->suffix, suffix, p - suffix) == 0
3063 && t->unique == (c != 'g'))
3066 /* Make a new association if needed. %u requires one. */
3067 if (t == 0 || c == 'u')
3071 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3072 t->next = temp_names;
3075 t->length = p - suffix;
3076 t->suffix = save_string (suffix, p - suffix);
3077 t->unique = (c != 'g');
3078 temp_filename = choose_temp_base ();
3079 temp_filename_length = strlen (temp_filename);
3080 t->filename = temp_filename;
3081 t->filename_length = temp_filename_length;
3084 obstack_grow (&obstack, t->filename, t->filename_length);
3085 delete_this_arg = 1;
3087 obstack_grow (&obstack, temp_filename, temp_filename_length);
3088 if (c == 'u' || c == 'U')
3094 sprintf (buff, "%d", unique);
3095 obstack_grow (&obstack, buff, strlen (buff));
3098 delete_this_arg = 1;
3104 obstack_grow (&obstack, input_filename, input_filename_length);
3110 struct prefix_list *pl = include_prefixes.plist;
3112 if (gcc_exec_prefix)
3114 do_spec_1 ("-iprefix", 1, NULL_PTR);
3115 /* Make this a separate argument. */
3116 do_spec_1 (" ", 0, NULL_PTR);
3117 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3118 do_spec_1 (" ", 0, NULL_PTR);
3121 for (; pl; pl = pl->next)
3123 do_spec_1 ("-isystem", 1, NULL_PTR);
3124 /* Make this a separate argument. */
3125 do_spec_1 (" ", 0, NULL_PTR);
3126 do_spec_1 (pl->prefix, 1, NULL_PTR);
3127 do_spec_1 (" ", 0, NULL_PTR);
3133 for (i = 0; i < n_infiles; i++)
3134 store_arg (outfiles[i], 0, 0);
3138 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3143 this_is_library_file = 1;
3147 this_is_output_file = 1;
3152 int cur_index = argbuf_index;
3153 /* Handle the {...} following the %W. */
3156 p = handle_braces (p + 1);
3159 /* If any args were output, mark the last one for deletion
3161 if (argbuf_index != cur_index)
3162 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3166 /* %x{OPTION} records OPTION for %X to output. */
3172 /* Skip past the option value and make a copy. */
3177 string = save_string (p1 + 1, p - p1 - 2);
3179 /* See if we already recorded this option. */
3180 for (i = 0; i < n_linker_options; i++)
3181 if (! strcmp (string, linker_options[i]))
3187 /* This option is new; add it. */
3189 if (!linker_options)
3191 = (char **) xmalloc (n_linker_options * sizeof (char **));
3194 = (char **) xrealloc (linker_options,
3195 n_linker_options * sizeof (char **));
3197 linker_options[n_linker_options - 1] = string;
3201 /* Dump out the options accumulated previously using %x. */
3203 for (i = 0; i < n_linker_options; i++)
3205 do_spec_1 (linker_options[i], 1, NULL_PTR);
3206 /* Make each accumulated option a separate argument. */
3207 do_spec_1 (" ", 0, NULL_PTR);
3211 /* Dump out the options accumulated previously using -Wa,. */
3213 for (i = 0; i < n_assembler_options; i++)
3215 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3216 /* Make each accumulated option a separate argument. */
3217 do_spec_1 (" ", 0, NULL_PTR);
3221 /* Dump out the options accumulated previously using -Wp,. */
3223 for (i = 0; i < n_preprocessor_options; i++)
3225 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3226 /* Make each accumulated option a separate argument. */
3227 do_spec_1 (" ", 0, NULL_PTR);
3231 /* Here are digits and numbers that just process
3232 a certain constant string as a spec. */
3235 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3241 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3247 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3253 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3259 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3265 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3271 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3277 value = do_spec_1 (link_spec, 0, NULL_PTR);
3283 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3289 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3296 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3300 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3304 if (! strncmp (y, "-D", 2))
3305 /* Copy the whole option. */
3306 while (*y && *y != ' ' && *y != '\t')
3308 else if (*y == ' ' || *y == '\t')
3309 /* Copy whitespace to the result. */
3311 /* Don't copy other options. */
3318 value = do_spec_1 (buf, 0, NULL_PTR);
3326 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3330 /* Copy all of CPP_PREDEFINES into BUF,
3331 but put __ after every -D and at the end of each arg. */
3335 if (! strncmp (y, "-D", 2))
3343 || (*(y+1) != '_' && ! isupper (*(y+1))))
3345 /* Stick __ at front of macro name. */
3348 /* Arrange to stick __ at the end as well. */
3352 /* Copy the macro name. */
3353 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3362 /* Copy the value given, if any. */
3363 while (*y && *y != ' ' && *y != '\t')
3366 else if (*y == ' ' || *y == '\t')
3367 /* Copy whitespace to the result. */
3369 /* Don't copy -A options */
3375 /* Copy all of CPP_PREDEFINES into BUF,
3376 but put __ after every -D. */
3380 if (! strncmp (y, "-D", 2))
3385 || (*(y+1) != '_' && ! isupper (*(y+1))))
3387 /* Stick -D__ at front of macro name. */
3393 /* Copy the macro name. */
3394 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3397 /* Copy the value given, if any. */
3398 while (*y && *y != ' ' && *y != '\t')
3403 /* Do not copy this macro - we have just done it before */
3404 while (*y && *y != ' ' && *y != '\t')
3408 else if (*y == ' ' || *y == '\t')
3409 /* Copy whitespace to the result. */
3411 /* Don't copy -A options */
3417 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3421 if (! strncmp (y, "-A", 2))
3422 /* Copy the whole option. */
3423 while (*y && *y != ' ' && *y != '\t')
3425 else if (*y == ' ' || *y == '\t')
3426 /* Copy whitespace to the result. */
3428 /* Don't copy other options. */
3435 value = do_spec_1 (buf, 0, NULL_PTR);
3442 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3447 /* Here we define characters other than letters and digits. */
3450 p = handle_braces (p);
3456 obstack_1grow (&obstack, '%');
3460 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3461 do_spec_1 (" ", 0, NULL_PTR);
3464 /* Process a string found as the value of a spec given by name.
3465 This feature allows individual machine descriptions
3466 to add and use their own specs.
3467 %[...] modifies -D options the way %P does;
3468 %(...) uses the spec unmodified. */
3473 struct spec_list *sl;
3476 /* The string after the S/P is the name of a spec that is to be
3478 while (*p && *p != ')' && *p != ']')
3481 /* See if it's in the list */
3482 for (len = p - name, sl = specs; sl; sl = sl->next)
3483 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3493 value = do_spec_1 (name, 0, NULL_PTR);
3499 char *x = (char *) alloca (strlen (name) * 2 + 1);
3503 /* Copy all of NAME into BUF, but put __ after
3504 every -D and at the end of each arg, */
3507 if (! strncmp (y, "-D", 2))
3515 else if (*y == ' ' || *y == 0)
3529 value = do_spec_1 (buf, 0, NULL_PTR);
3535 /* Discard the closing paren or bracket. */
3543 int c1 = *p++; /* Select first or second version number. */
3544 char *v = compiler_version;
3547 /* The format of the version string is
3548 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3550 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3551 while (! isdigit (*v))
3553 if (v > compiler_version && v[-1] != '-')
3556 /* If desired, advance to second version number. */
3559 /* Set V after the first period. */
3560 while (isdigit (*v))
3567 /* Set Q at the next period or at the end. */
3569 while (isdigit (*q))
3571 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3574 /* Put that part into the command. */
3575 obstack_grow (&obstack, v, q - v);
3581 if (input_from_pipe)
3582 do_spec_1 ("-", 0, NULL_PTR);
3591 /* Backslash: treat next character as ordinary. */
3596 /* Ordinary character: put it into the current argument. */
3597 obstack_1grow (&obstack, c);
3601 return 0; /* End of string */
3604 /* Return 0 if we call do_spec_1 and that returns -1. */
3617 /* A `|' after the open-brace means,
3618 if the test fails, output a single minus sign rather than nothing.
3619 This is used in %{|!pipe:...}. */
3623 /* A `!' after the open-brace negates the condition:
3624 succeed if the specified switch is not present. */
3628 /* A `.' after the open-brace means test against the current suffix. */
3638 while (*p != ':' && *p != '}') p++;
3641 register int count = 1;
3659 int found = (input_suffix != 0
3660 && strlen (input_suffix) == p - filter
3661 && strncmp (input_suffix, filter, p - filter) == 0);
3667 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3672 else if (p[-1] == '*' && p[0] == '}')
3674 /* Substitute all matching switches as separate args. */
3677 for (i = 0; i < n_switches; i++)
3678 if (!strncmp (switches[i].part1, filter, p - filter)
3679 && check_live_switch (i, p - filter))
3684 /* Test for presence of the specified switch. */
3688 /* If name specified ends in *, as in {x*:...},
3689 check for %* and handle that case. */
3690 if (p[-1] == '*' && !negate)
3695 /* First see whether we have %*. */
3699 if (*r == '%' && r[1] == '*')
3703 /* If we do, handle that case. */
3706 /* Substitute all matching switches as separate args.
3707 But do this by substituting for %*
3708 in the text that follows the colon. */
3710 unsigned hard_match_len = p - filter - 1;
3711 char *string = save_string (p + 1, q - p - 2);
3713 for (i = 0; i < n_switches; i++)
3714 if (!strncmp (switches[i].part1, filter, hard_match_len)
3715 && check_live_switch (i, -1))
3717 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3718 /* Pass any arguments this switch has. */
3726 /* If name specified ends in *, as in {x*:...},
3727 check for presence of any switch name starting with x. */
3730 for (i = 0; i < n_switches; i++)
3732 unsigned hard_match_len = p - filter - 1;
3734 if (!strncmp (switches[i].part1, filter, hard_match_len)
3735 && check_live_switch (i, hard_match_len))
3741 /* Otherwise, check for presence of exact name specified. */
3744 for (i = 0; i < n_switches; i++)
3746 if (!strncmp (switches[i].part1, filter, p - filter)
3747 && switches[i].part1[p - filter] == 0
3748 && check_live_switch (i, -1))
3756 /* If it is as desired (present for %{s...}, absent for %{-s...})
3757 then substitute either the switch or the specified
3758 conditional text. */
3759 if (present != negate)
3767 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3773 /* Here if a %{|...} conditional fails: output a minus sign,
3774 which means "standard output" or "standard input". */
3775 do_spec_1 ("-", 0, NULL_PTR);
3782 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3783 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3784 spec, or -1 if either exact match or %* is used.
3786 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3787 whose value does not begin with "no-" is obsoleted by the same value
3788 with the "no-", similarly for a switch with the "no-" prefix. */
3791 check_live_switch (switchnum, prefix_length)
3795 char *name = switches[switchnum].part1;
3798 /* In the common case of {<at-most-one-letter>*}, a negating
3799 switch would always match, so ignore that case. We will just
3800 send the conflicting switches to the compiler phase. */
3801 if (prefix_length >= 0 && prefix_length <= 1)
3804 /* If we already processed this switch and determined if it was
3805 live or not, return our past determination. */
3806 if (switches[switchnum].live_cond != 0)
3807 return switches[switchnum].live_cond > 0;
3809 /* Now search for duplicate in a manner that depends on the name. */
3813 for (i = switchnum + 1; i < n_switches; i++)
3814 if (switches[i].part1[0] == 'O')
3816 switches[switchnum].valid = 1;
3817 switches[switchnum].live_cond = -1;
3822 case 'W': case 'f': case 'm':
3823 if (! strncmp (name + 1, "no-", 3))
3825 /* We have Xno-YYY, search for XYYY. */
3826 for (i = switchnum + 1; i < n_switches; i++)
3827 if (switches[i].part1[0] == name[0]
3828 && ! strcmp (&switches[i].part1[1], &name[4]))
3830 switches[switchnum].valid = 1;
3831 switches[switchnum].live_cond = -1;
3837 /* We have XYYY, search for Xno-YYY. */
3838 for (i = switchnum + 1; i < n_switches; i++)
3839 if (switches[i].part1[0] == name[0]
3840 && switches[i].part1[1] == 'n'
3841 && switches[i].part1[2] == 'o'
3842 && switches[i].part1[3] == '-'
3843 && !strcmp (&switches[i].part1[4], &name[1]))
3845 switches[switchnum].valid = 1;
3846 switches[switchnum].live_cond = -1;
3853 /* Otherwise the switch is live. */
3854 switches[switchnum].live_cond = 1;
3858 /* Pass a switch to the current accumulating command
3859 in the same form that we received it.
3860 SWITCHNUM identifies the switch; it is an index into
3861 the vector of switches gcc received, which is `switches'.
3862 This cannot fail since it never finishes a command line.
3864 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3867 give_switch (switchnum, omit_first_word)
3869 int omit_first_word;
3871 if (!omit_first_word)
3873 do_spec_1 ("-", 0, NULL_PTR);
3874 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3876 do_spec_1 (" ", 0, NULL_PTR);
3877 if (switches[switchnum].args != 0)
3880 for (p = switches[switchnum].args; *p; p++)
3882 do_spec_1 (*p, 1, NULL_PTR);
3883 do_spec_1 (" ", 0, NULL_PTR);
3886 switches[switchnum].valid = 1;
3889 /* Search for a file named NAME trying various prefixes including the
3890 user's -B prefix and some standard ones.
3891 Return the absolute file name found. If nothing is found, return NAME. */
3899 /* Try multilib_dir if it is defined. */
3900 if (multilib_dir != NULL)
3904 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3905 strcpy (try, multilib_dir);
3906 strcat (try, dir_separator_str);
3909 newname = find_a_file (&startfile_prefixes, try, R_OK);
3911 /* If we don't find it in the multi library dir, then fall
3912 through and look for it in the normal places. */
3913 if (newname != NULL)
3917 newname = find_a_file (&startfile_prefixes, name, R_OK);
3918 return newname ? newname : name;
3921 /* Determine whether a directory exists. If LINKER, return 0 for
3922 certain fixed names not needed by the linker. If not LINKER, it is
3923 only important to return 0 if the host machine has a small ARG_MAX
3927 is_directory (path1, path2, linker)
3932 int len1 = strlen (path1);
3933 int len2 = strlen (path2);
3934 char *path = (char *) alloca (3 + len1 + len2);
3938 #ifndef SMALL_ARG_MAX
3943 /* Construct the path from the two parts. Ensure the string ends with "/.".
3944 The resulting path will be a directory even if the given path is a
3946 bcopy (path1, path, len1);
3947 bcopy (path2, path + len1, len2);
3948 cp = path + len1 + len2;
3949 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
3950 *cp++ = DIR_SEPARATOR;
3954 /* Exclude directories that the linker is known to search. */
3957 && strcmp (path, concat (dir_separator_str, "lib",
3958 dir_separator_str, ".", NULL_PTR)) == 0)
3960 && strcmp (path, concat (dir_separator_str, "usr",
3961 dir_separator_str, "lib",
3962 dir_separator_str, ".", NULL_PTR)) == 0)))
3965 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3968 /* On fatal signals, delete all the temporary files. */
3971 fatal_error (signum)
3974 signal (signum, SIG_DFL);
3975 delete_failure_queue ();
3976 delete_temp_files ();
3977 /* Get the same signal again, this time not handled,
3978 so its normal effect occurs. */
3979 kill (getpid (), signum);
3990 int linker_was_run = 0;
3991 char *explicit_link_files;
3995 p = argv[0] + strlen (argv[0]);
3996 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
3999 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4000 signal (SIGINT, fatal_error);
4002 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4003 signal (SIGHUP, fatal_error);
4005 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4006 signal (SIGTERM, fatal_error);
4008 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4009 signal (SIGPIPE, fatal_error);
4013 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4015 obstack_init (&obstack);
4017 /* Build multilib_select from the separate lines that make up each multilib
4020 char **q = multilib_raw;
4022 obstack_init (&multilib_obstack);
4023 while ((p = *q++) != (char *)0)
4024 obstack_grow (&multilib_obstack, p, strlen (p));
4026 obstack_1grow (&multilib_obstack, 0);
4027 multilib_select = obstack_finish (&multilib_obstack);
4030 /* Set up to remember the pathname of gcc and any options
4031 needed for collect. We use argv[0] instead of programname because
4032 we need the complete pathname. */
4033 obstack_init (&collect_obstack);
4034 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4035 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4036 putenv (obstack_finish (&collect_obstack));
4038 #ifdef INIT_ENVIRONMENT
4039 /* Set up any other necessary machine specific environment variables. */
4040 putenv (INIT_ENVIRONMENT);
4043 /* Choose directory for temp files. */
4045 temp_filename = choose_temp_base ();
4046 temp_filename_length = strlen (temp_filename);
4048 /* Make a table of what switches there are (switches, n_switches).
4049 Make a table of specified input files (infiles, n_infiles).
4050 Decode switches that are handled locally. */
4052 process_command (argc, argv);
4054 /* Initialize the vector of specs to just the default.
4055 This means one element containing 0s, as a terminator. */
4057 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4058 bcopy ((char *) default_compilers, (char *) compilers,
4059 sizeof default_compilers);
4060 n_compilers = n_default_compilers;
4062 /* Read specs from a file if there is one. */
4064 machine_suffix = concat (spec_machine, dir_separator_str,
4065 spec_version, dir_separator_str, NULL_PTR);
4066 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4068 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4069 /* Read the specs file unless it is a default one. */
4070 if (specs_file != 0 && strcmp (specs_file, "specs"))
4071 read_specs (specs_file);
4077 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4078 set_spec (extra_specs[k].name, extra_specs[k].spec);
4082 /* If not cross-compiling, look for startfiles in the standard places. */
4083 /* The fact that these are done here, after reading the specs file,
4084 means that it cannot be found in these directories.
4085 But that's okay. It should never be there anyway. */
4088 #ifdef MD_EXEC_PREFIX
4089 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4090 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4093 #ifdef MD_STARTFILE_PREFIX
4094 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4097 #ifdef MD_STARTFILE_PREFIX_1
4098 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4101 /* If standard_startfile_prefix is relative, base it on
4102 standard_exec_prefix. This lets us move the installed tree
4103 as a unit. If GCC_EXEC_PREFIX is defined, base
4104 standard_startfile_prefix on that as well. */
4105 if (*standard_startfile_prefix == '/'
4106 || *standard_startfile_prefix == DIR_SEPARATOR)
4107 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4111 if (gcc_exec_prefix)
4112 add_prefix (&startfile_prefixes,
4113 concat (gcc_exec_prefix, machine_suffix,
4114 standard_startfile_prefix, NULL_PTR),
4116 add_prefix (&startfile_prefixes,
4117 concat (standard_exec_prefix,
4119 standard_startfile_prefix, NULL_PTR),
4123 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4125 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4127 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4128 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4133 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4134 add_prefix (&startfile_prefixes,
4135 concat (gcc_exec_prefix, machine_suffix,
4136 standard_startfile_prefix, NULL_PTR),
4140 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4141 if (gcc_exec_prefix)
4143 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4144 + strlen (spec_version)
4145 + strlen (spec_machine) + 3);
4146 strcpy (temp, gcc_exec_prefix);
4147 strcat (temp, spec_machine);
4148 strcat (temp, dir_separator_str);
4149 strcat (temp, spec_version);
4150 strcat (temp, dir_separator_str);
4151 gcc_exec_prefix = temp;
4154 /* Now we have the specs.
4155 Set the `valid' bits for switches that match anything in any spec. */
4157 validate_all_switches ();
4159 /* Now that we have the switches and the specs, set
4160 the subdirectory based on the options. */
4161 set_multilib_dir ();
4163 /* Warn about any switches that no pass was interested in. */
4165 for (i = 0; i < n_switches; i++)
4166 if (! switches[i].valid)
4167 error ("unrecognized option `-%s'", switches[i].part1);
4169 /* Obey some of the options. */
4171 if (print_search_dirs)
4173 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4174 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4175 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4179 if (print_file_name)
4181 printf ("%s\n", find_file (print_file_name));
4185 if (print_prog_name)
4187 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4188 printf ("%s\n", (newname ? newname : print_prog_name));
4192 if (print_multi_lib)
4194 print_multilib_info ();
4198 if (print_multi_directory)
4200 if (multilib_dir == NULL)
4203 printf ("%s\n", multilib_dir);
4209 if (! strcmp (version_string, compiler_version))
4210 fprintf (stderr, "gcc version %s\n", version_string);
4212 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4213 version_string, compiler_version);
4220 fatal ("No input files");
4222 /* Make a place to record the compiler output file names
4223 that correspond to the input files. */
4225 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4226 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4228 /* Record which files were specified explicitly as link input. */
4230 explicit_link_files = xmalloc (n_infiles);
4231 bzero (explicit_link_files, n_infiles);
4233 for (i = 0; i < n_infiles; i++)
4235 register struct compiler *cp = 0;
4236 int this_file_error = 0;
4238 /* Tell do_spec what to substitute for %i. */
4240 input_filename = infiles[i].name;
4241 input_filename_length = strlen (input_filename);
4242 input_file_number = i;
4244 /* Use the same thing in %o, unless cp->spec says otherwise. */
4246 outfiles[i] = input_filename;
4248 /* Figure out which compiler from the file's suffix. */
4250 cp = lookup_compiler (infiles[i].name, input_filename_length,
4251 infiles[i].language);
4255 /* Ok, we found an applicable compiler. Run its spec. */
4256 /* First say how much of input_filename to substitute for %b */
4260 input_basename = input_filename;
4261 for (p = input_filename; *p; p++)
4262 if (*p == '/' || *p == DIR_SEPARATOR)
4263 input_basename = p + 1;
4265 /* Find a suffix starting with the last period,
4266 and set basename_length to exclude that suffix. */
4267 basename_length = strlen (input_basename);
4268 p = input_basename + basename_length;
4269 while (p != input_basename && *p != '.') --p;
4270 if (*p == '.' && p != input_basename)
4272 basename_length = p - input_basename;
4273 input_suffix = p + 1;
4279 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4281 len += strlen (cp->spec[j]);
4283 p = (char *) xmalloc (len + 1);
4286 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4289 strcpy (p + len, cp->spec[j]);
4290 len += strlen (cp->spec[j]);
4293 value = do_spec (p);
4296 this_file_error = 1;
4299 /* If this file's name does not contain a recognized suffix,
4300 record it as explicit linker input. */
4303 explicit_link_files[i] = 1;
4305 /* Clear the delete-on-failure queue, deleting the files in it
4306 if this compilation failed. */
4308 if (this_file_error)
4310 delete_failure_queue ();
4313 /* If this compilation succeeded, don't delete those files later. */
4314 clear_failure_queue ();
4317 /* Run ld to link all the compiler output files. */
4319 if (error_count == 0)
4321 int tmp = execution_count;
4325 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4327 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4328 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4330 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4332 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4333 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4336 for (i = 0; i < n_switches; i++)
4340 obstack_grow (&collect_obstack, " ", 1);
4343 obstack_grow (&collect_obstack, "-", 1);
4344 obstack_grow (&collect_obstack, switches[i].part1,
4345 strlen (switches[i].part1));
4347 for (args = switches[i].args; args && *args; args++)
4349 obstack_grow (&collect_obstack, " ", 1);
4350 obstack_grow (&collect_obstack, *args, strlen (*args));
4353 obstack_grow (&collect_obstack, "\0", 1);
4354 putenv (obstack_finish (&collect_obstack));
4356 value = do_spec (link_command_spec);
4359 linker_was_run = (tmp != execution_count);
4362 /* Warn if a -B option was specified but the prefix was never used. */
4363 unused_prefix_warnings (&exec_prefixes);
4364 unused_prefix_warnings (&startfile_prefixes);
4366 /* If options said don't run linker,
4367 complain about input files to be given to the linker. */
4369 if (! linker_was_run && error_count == 0)
4370 for (i = 0; i < n_infiles; i++)
4371 if (explicit_link_files[i])
4372 error ("%s: linker input file unused since linking not done",
4375 /* Delete some or all of the temporary files we made. */
4378 delete_failure_queue ();
4379 delete_temp_files ();
4381 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4386 /* Find the proper compilation spec for the file name NAME,
4387 whose length is LENGTH. LANGUAGE is the specified language,
4388 or 0 if none specified. */
4390 static struct compiler *
4391 lookup_compiler (name, length, language)
4396 struct compiler *cp;
4398 /* Look for the language, if one is spec'd. */
4401 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4405 if (cp->suffix[0] == '@'
4406 && !strcmp (cp->suffix + 1, language))
4410 error ("language %s not recognized", language);
4413 /* Look for a suffix. */
4414 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4416 if (/* The suffix `-' matches only the file name `-'. */
4417 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4419 (strlen (cp->suffix) < length
4420 /* See if the suffix matches the end of NAME. */
4422 && (!strcmp (cp->suffix,
4423 name + length - strlen (cp->suffix))
4424 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4425 && !strcasecmp (cp->suffix,
4426 name + length - strlen (cp->suffix)))))
4428 && !strcmp (cp->suffix,
4429 name + length - strlen (cp->suffix))))
4432 if (cp->spec[0][0] == '@')
4434 struct compiler *new;
4435 /* An alias entry maps a suffix to a language.
4436 Search for the language; pass 0 for NAME and LENGTH
4437 to avoid infinite recursion if language not found.
4438 Construct the new compiler spec. */
4439 language = cp->spec[0] + 1;
4440 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4441 new->suffix = cp->suffix;
4442 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4443 (char *) new->spec, sizeof new->spec);
4446 /* A non-alias entry: return it. */
4458 register char *value = (char *) malloc (size);
4460 fatal ("virtual memory exhausted");
4465 xrealloc (ptr, size)
4469 register char *value = (char *) realloc (ptr, size);
4471 fatal ("virtual memory exhausted");
4475 /* This function is based on the one in libiberty. */
4478 concat VPROTO((char *first, ...))
4480 register int length;
4481 register char *newstr;
4489 /* First compute the size of the result and get sufficient memory. */
4491 VA_START (args, first);
4493 first = va_arg (args, char *);
4501 length += strlen (arg);
4502 arg = va_arg (args, char *);
4505 newstr = (char *) xmalloc (length + 1);
4508 /* Now copy the individual pieces to the result string. */
4510 VA_START (args, first);
4512 first = va_arg (args, char *);
4521 arg = va_arg (args, char *);
4530 save_string (s, len)
4534 register char *result = xmalloc (len + 1);
4536 bcopy (s, result, len);
4542 pfatal_with_name (name)
4545 fatal ("%s: %s", name, my_strerror (errno));
4549 perror_with_name (name)
4552 error ("%s: %s", name, my_strerror (errno));
4556 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4563 /* ??? Why doesn't my_strerror handle this? */
4564 if (errno < sys_nerr)
4565 s = my_strerror (errno);
4568 sprintf (buf, "unknown error %d", errno);
4574 /* Space for trailing '\0' is in %s. */
4575 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4576 sprintf (msg, errmsg_fmt, errmsg_arg);
4580 fatal ("%s: %s", errmsg_fmt, s);
4583 /* More 'friendly' abort that prints the line and file.
4584 config.h can #define abort fancy_abort if you like that sort of thing. */
4589 fatal ("Internal gcc abort.");
4594 /* Output an error message and exit */
4597 fatal VPROTO((char *format, ...))
4604 VA_START (ap, format);
4607 format = va_arg (ap, char*);
4610 fprintf (stderr, "%s: ", programname);
4611 vfprintf (stderr, format, ap);
4613 fprintf (stderr, "\n");
4614 delete_temp_files ();
4619 error VPROTO((char *format, ...))
4626 VA_START (ap, format);
4629 format = va_arg (ap, char*);
4632 fprintf (stderr, "%s: ", programname);
4633 vfprintf (stderr, format, ap);
4636 fprintf (stderr, "\n");
4639 #else /* not HAVE_VPRINTF */
4642 fatal (msg, arg1, arg2)
4643 char *msg, *arg1, *arg2;
4645 error (msg, arg1, arg2);
4646 delete_temp_files ();
4651 error (msg, arg1, arg2)
4652 char *msg, *arg1, *arg2;
4654 fprintf (stderr, "%s: ", programname);
4655 fprintf (stderr, msg, arg1, arg2);
4656 fprintf (stderr, "\n");
4659 #endif /* not HAVE_VPRINTF */
4663 validate_all_switches ()
4665 struct compiler *comp;
4668 struct spec_list *spec;
4670 for (comp = compilers; comp->spec[0]; comp++)
4673 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4677 if (c == '%' && *p == '{')
4678 /* We have a switch spec. */
4679 validate_switches (p + 1);
4683 /* look through the linked list of extra specs read from the specs file */
4684 for (spec = specs; spec ; spec = spec->next)
4688 if (c == '%' && *p == '{')
4689 /* We have a switch spec. */
4690 validate_switches (p + 1);
4693 p = link_command_spec;
4695 if (c == '%' && *p == '{')
4696 /* We have a switch spec. */
4697 validate_switches (p + 1);
4699 /* Now notice switches mentioned in the machine-specific specs. */
4703 if (c == '%' && *p == '{')
4704 /* We have a switch spec. */
4705 validate_switches (p + 1);
4709 if (c == '%' && *p == '{')
4710 /* We have a switch spec. */
4711 validate_switches (p + 1);
4715 if (c == '%' && *p == '{')
4716 /* We have a switch spec. */
4717 validate_switches (p + 1);
4719 p = signed_char_spec;
4721 if (c == '%' && *p == '{')
4722 /* We have a switch spec. */
4723 validate_switches (p + 1);
4727 if (c == '%' && *p == '{')
4728 /* We have a switch spec. */
4729 validate_switches (p + 1);
4733 if (c == '%' && *p == '{')
4734 /* We have a switch spec. */
4735 validate_switches (p + 1);
4739 if (c == '%' && *p == '{')
4740 /* We have a switch spec. */
4741 validate_switches (p + 1);
4745 if (c == '%' && *p == '{')
4746 /* We have a switch spec. */
4747 validate_switches (p + 1);
4751 if (c == '%' && *p == '{')
4752 /* We have a switch spec. */
4753 validate_switches (p + 1);
4757 if (c == '%' && *p == '{')
4758 /* We have a switch spec. */
4759 validate_switches (p + 1);
4764 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4766 p = extra_specs[i].spec;
4768 if (c == '%' && *p == '{')
4769 /* We have a switch spec. */
4770 validate_switches (p + 1);
4777 /* Look at the switch-name that comes after START
4778 and mark as valid all supplied switches that match it. */
4781 validate_switches (start)
4784 register char *p = start;
4799 while (*p != ':' && *p != '}') p++;
4803 else if (p[-1] == '*')
4805 /* Mark all matching switches as valid. */
4807 for (i = 0; i < n_switches; i++)
4808 if (!strncmp (switches[i].part1, filter, p - filter))
4809 switches[i].valid = 1;
4813 /* Mark an exact matching switch as valid. */
4814 for (i = 0; i < n_switches; i++)
4816 if (!strncmp (switches[i].part1, filter, p - filter)
4817 && switches[i].part1[p - filter] == 0)
4818 switches[i].valid = 1;
4823 /* Check whether a particular argument was used. */
4832 for (i = 0; i < n_switches; i++)
4833 if (! strncmp (switches[i].part1, p, len)
4834 && strlen (switches[i].part1) == len)
4839 /* Check whether a particular argument is a default argument. */
4841 #ifndef MULTILIB_DEFAULTS
4842 #define MULTILIB_DEFAULTS { NULL }
4845 static char *multilib_defaults[] = MULTILIB_DEFAULTS;
4848 default_arg (p, len)
4852 int count = sizeof multilib_defaults / sizeof multilib_defaults[0];
4855 for (i = 0; i < count; i++)
4856 if (multilib_defaults[i] != NULL
4857 && strncmp (multilib_defaults[i], p, len) == 0
4858 && multilib_defaults[i][len] == '\0')
4864 /* Work out the subdirectory to use based on the
4865 options. The format of multilib_select is a list of elements.
4866 Each element is a subdirectory name followed by a list of options
4867 followed by a semicolon. gcc will consider each line in turn. If
4868 none of the options beginning with an exclamation point are
4869 present, and all of the other options are present, that
4870 subdirectory will be used. */
4875 char *p = multilib_select;
4877 char *this_path, *this_arg;
4883 /* Ignore newlines. */
4890 /* Get the initial path. */
4898 this_path_len = p - this_path;
4900 /* Check the arguments. */
4915 while (*p != ' ' && *p != ';')
4922 if (*this_arg != '!')
4930 /* If this is a default argument, we can just ignore it.
4931 This is true even if this_arg begins with '!'. Beginning
4932 with '!' does not mean that this argument is necessarily
4933 inappropriate for this library: it merely means that
4934 there is a more specific library which uses this
4935 argument. If this argument is a default, we need not
4936 consider that more specific library. */
4937 if (! default_arg (this_arg, p - this_arg))
4939 ok = used_arg (this_arg, p - this_arg);
4950 if (this_path_len != 1
4951 || this_path[0] != '.')
4953 multilib_dir = xmalloc (this_path_len + 1);
4954 strncpy (multilib_dir, this_path, this_path_len);
4955 multilib_dir[this_path_len] = '\0';
4964 /* Print out the multiple library subdirectory selection
4965 information. This prints out a series of lines. Each line looks
4966 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
4967 required. Only the desired options are printed out, the negative
4968 matches. The options are print without a leading dash. There are
4969 no spaces to make it easy to use the information in the shell.
4970 Each subdirectory is printed only once. This assumes the ordering
4971 generated by the genmultilib script. */
4974 print_multilib_info ()
4976 char *p = multilib_select;
4977 char *last_path = 0, *this_path;
4979 int last_path_len = 0;
4983 /* Ignore newlines. */
4990 /* Get the initial path. */
4999 /* If this is a duplicate, skip it. */
5000 skip = (last_path != 0 && p - this_path == last_path_len
5001 && ! strncmp (last_path, this_path, last_path_len));
5003 last_path = this_path;
5004 last_path_len = p - this_path;
5006 /* If this directory requires any default arguments, we can skip
5007 it. We will already have printed a directory identical to
5008 this one which does not require that default argument. */
5026 while (*q != ' ' && *q != ';')
5034 && default_arg (arg, q - arg))
5049 for (p1 = last_path; p1 < p; p1++)
5068 use_arg = *p != '!';
5073 while (*p != ' ' && *p != ';')