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
69 #define PEXECUTE_VERBOSE 8
72 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
75 #define WTERMSIG(S) ((S) & 0x7f)
78 #define WIFEXITED(S) (((S) & 0xff) == 0)
81 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
84 /* Define O_RDONLY if the system hasn't defined it for us. */
93 /* Test if something is a normal file. */
95 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
98 /* Test if something is a directory. */
100 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
103 /* By default there is no special suffix for executables. */
104 #ifndef EXECUTABLE_SUFFIX
105 #define EXECUTABLE_SUFFIX ""
108 /* By default, the suffix for object files is ".o". */
110 #define HAVE_OBJECT_SUFFIX
112 #define OBJECT_SUFFIX ".o"
115 /* By default, colon separates directories in a path. */
116 #ifndef PATH_SEPARATOR
117 #define PATH_SEPARATOR ':'
120 #ifndef DIR_SEPARATOR
121 #define DIR_SEPARATOR '/'
124 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
126 #define obstack_chunk_alloc xmalloc
127 #define obstack_chunk_free free
130 extern char *getenv ();
132 extern char *choose_temp_base PROTO((void));
138 #ifndef HAVE_STRERROR
141 extern const char *const sys_errlist[];
143 extern char *sys_errlist[];
146 extern char *strerror();
149 /* If a stage of compilation returns an exit status >= 1,
150 compilation of that file ceases. */
152 #define MIN_FATAL_STATUS 1
154 /* Flag saying to print the directories gcc will search through looking for
155 programs, libraries, etc. */
157 static int print_search_dirs;
159 /* Flag saying to print the full filename of this file
160 as found through our usual search mechanism. */
162 static char *print_file_name = NULL;
164 /* As print_file_name, but search for executable file. */
166 static char *print_prog_name = NULL;
168 /* Flag saying to print the relative path we'd use to
169 find libgcc.a given the current compiler flags. */
171 static int print_multi_directory;
173 /* Flag saying to print the list of subdirectories and
174 compiler flags used to select them in a standard form. */
176 static int print_multi_lib;
178 /* Flag indicating whether we should print the command and arguments */
180 static int verbose_flag;
182 /* Nonzero means write "temp" files in source directory
183 and use the source file's name in them, and don't delete them. */
185 static int save_temps_flag;
187 /* The compiler version. */
189 static char *compiler_version;
191 /* The target version specified with -V */
193 static char *spec_version = DEFAULT_TARGET_VERSION;
195 /* The target machine specified with -b. */
197 static char *spec_machine = DEFAULT_TARGET_MACHINE;
199 /* Nonzero if cross-compiling.
200 When -b is used, the value comes from the `specs' file. */
203 static int cross_compile = 1;
205 static int cross_compile = 0;
208 /* The number of errors that have occurred; the link phase will not be
209 run if this is non-zero. */
210 static int error_count = 0;
212 /* This is the obstack which we use to allocate many strings. */
214 static struct obstack obstack;
216 /* This is the obstack to build an environment variable to pass to
217 collect2 that describes all of the relevant switches of what to
218 pass the compiler in building the list of pointers to constructors
221 static struct obstack collect_obstack;
223 extern char *version_string;
225 /* Forward declaration for prototypes. */
228 static void set_spec PROTO((char *, char *));
229 static struct compiler *lookup_compiler PROTO((char *, int, char *));
230 static char *build_search_list PROTO((struct path_prefix *, char *, int));
231 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
232 static char *find_a_file PROTO((struct path_prefix *, char *, int));
233 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
234 static char *skip_whitespace PROTO((char *));
235 static void record_temp_file PROTO((char *, int, int));
236 static void delete_if_ordinary PROTO((char *));
237 static void delete_temp_files PROTO((void));
238 static void delete_failure_queue PROTO((void));
239 static void clear_failure_queue PROTO((void));
240 static int check_live_switch PROTO((int, int));
241 static char *handle_braces PROTO((char *));
242 static char *save_string PROTO((char *, int));
243 static char *concat PVPROTO((char *, ...));
244 static int do_spec PROTO((char *));
245 static int do_spec_1 PROTO((char *, int, char *));
246 static char *find_file PROTO((char *));
247 static int is_directory PROTO((char *, char *, int));
248 static void validate_switches PROTO((char *));
249 static void validate_all_switches PROTO((void));
250 static void give_switch PROTO((int, int));
251 static int used_arg PROTO((char *, int));
252 static int default_arg PROTO((char *, int));
253 static void set_multilib_dir PROTO((void));
254 static void print_multilib_info PROTO((void));
255 static void pfatal_with_name PROTO((char *));
256 static void perror_with_name PROTO((char *));
257 static void pfatal_pexecute PROTO((char *, char *));
259 static void fatal PVPROTO((char *, ...));
260 static void error PVPROTO((char *, ...));
262 /* We must not provide any prototype here, even if ANSI C. */
263 static void fatal PROTO(());
264 static void error PROTO(());
271 /* Specs are strings containing lines, each of which (if not blank)
272 is made up of a program name, and arguments separated by spaces.
273 The program name must be exact and start from root, since no path
274 is searched and it is unreliable to depend on the current working directory.
275 Redirection of input or output is not supported; the subprograms must
276 accept filenames saying what files to read and write.
278 In addition, the specs can contain %-sequences to substitute variable text
279 or for conditional text. Here is a table of all defined %-sequences.
280 Note that spaces are not generated automatically around the results of
281 expanding these sequences; therefore, you can concatenate them together
282 or with constant text in a single argument.
284 %% substitute one % into the program name or argument.
285 %i substitute the name of the input file being processed.
286 %b substitute the basename of the input file being processed.
287 This is the substring up to (and not including) the last period
288 and not including the directory.
289 %g substitute the temporary-file-name-base. This is a string chosen
290 once per compilation. Different temporary file names are made by
291 concatenation of constant strings on the end, as in `%g.s'.
292 %g also has the same effect of %d.
293 %u like %g, but make the temporary file name unique.
294 %U returns the last file name generated with %u.
295 %d marks the argument containing or following the %d as a
296 temporary file name, so that that file will be deleted if CC exits
297 successfully. Unlike %g, this contributes no text to the argument.
298 %w marks the argument containing or following the %w as the
299 "output file" of this compilation. This puts the argument
300 into the sequence of arguments that %o will substitute later.
302 like %{...} but mark last argument supplied within
303 as a file to be deleted on failure.
304 %o substitutes the names of all the output files, with spaces
305 automatically placed around them. You should write spaces
306 around the %o as well or the results are undefined.
307 %o is for use in the specs for running the linker.
308 Input files whose names have no recognized suffix are not compiled
309 at all, but they are included among the output files, so they will
311 %O substitutes the suffix for object files.
312 %p substitutes the standard macro predefinitions for the
313 current target machine. Use this when running cpp.
314 %P like %p, but puts `__' before and after the name of each macro.
315 (Except macros that already have __.)
317 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
318 %s current argument is the name of a library or startup file of some sort.
319 Search for that file in a standard list of directories
320 and substitute the full name found.
321 %eSTR Print STR as an error message. STR is terminated by a newline.
322 Use this when inconsistent options are detected.
323 %x{OPTION} Accumulate an option for %X.
324 %X Output the accumulated linker options specified by compilations.
325 %Y Output the accumulated assembler options specified by compilations.
326 %Z Output the accumulated preprocessor options specified by compilations.
327 %v1 Substitute the major version number of GCC.
328 (For version 2.5.n, this is 2.)
329 %v2 Substitute the minor version number of GCC.
330 (For version 2.5.n, this is 5.)
331 %a process ASM_SPEC as a spec.
332 This allows config.h to specify part of the spec for running as.
333 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
334 used here. This can be used to run a post-processor after the
335 assembler has done it's job.
336 %D Dump out a -L option for each directory in startfile_prefixes.
337 If multilib_dir is set, extra entries are generated with it affixed.
338 %l process LINK_SPEC as a spec.
339 %L process LIB_SPEC as a spec.
340 %G process LIBGCC_SPEC as a spec.
341 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
342 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
343 %c process SIGNED_CHAR_SPEC as a spec.
344 %C process CPP_SPEC as a spec. A capital C is actually used here.
345 %1 process CC1_SPEC as a spec.
346 %2 process CC1PLUS_SPEC as a spec.
347 %| output "-" if the input for the current command is coming from a pipe.
348 %* substitute the variable part of a matched option. (See below.)
349 Note that each comma in the substituted string is replaced by
351 %{S} substitutes the -S switch, if that switch was given to CC.
352 If that switch was not specified, this substitutes nothing.
353 Here S is a metasyntactic variable.
354 %{S*} substitutes all the switches specified to CC whose names start
355 with -S. This is used for -o, -D, -I, etc; switches that take
356 arguments. CC considers `-o foo' as being one switch whose
357 name starts with `o'. %{o*} would substitute this text,
358 including the space; thus, two arguments would be generated.
359 %{S*:X} substitutes X if one or more switches whose names start with -S are
360 specified to CC. Note that the tail part of the -S option
361 (i.e. the part matched by the `*') will be substituted for each
362 occurrence of %* within X.
363 %{S:X} substitutes X, but only if the -S switch was given to CC.
364 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
365 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
366 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
367 %{.S:X} substitutes X, but only if processing a file with suffix S.
368 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
369 %(Spec) processes a specification defined in a specs file as *Spec:
370 %[Spec] as above, but put __ around -D arguments
372 The conditional text X in a %{S:X} or %{!S:X} construct may contain
373 other nested % constructs or spaces, or even newlines. They are
374 processed as usual, as described above.
376 The -O, -f, -m, and -W switches are handled specifically in these
377 constructs. If another value of -O or the negated form of a -f, -m, or
378 -W switch is found later in the command line, the earlier switch
379 value is ignored, except with {S*} where S is just one letter; this
380 passes all matching options.
382 The character | is used to indicate that a command should be piped to
383 the following command, but only if -pipe is specified.
385 Note that it is built into CC which switches take arguments and which
386 do not. You might think it would be useful to generalize this to
387 allow each compiler's spec to say which switches take arguments. But
388 this cannot be done in a consistent fashion. CC cannot even decide
389 which input files have been specified without knowing which switches
390 take arguments, and it must know which input files to compile in order
391 to tell which compilers to run.
393 CC also knows implicitly that arguments starting in `-l' are to be
394 treated as compiler output files, and passed to the linker in their
395 proper position among the other output files. */
397 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
399 /* config.h can define ASM_SPEC to provide extra args to the assembler
400 or extra switch-translations. */
405 /* config.h can define ASM_FINAL_SPEC to run a post processor after
406 the assembler has run. */
407 #ifndef ASM_FINAL_SPEC
408 #define ASM_FINAL_SPEC ""
411 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
412 or extra switch-translations. */
417 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
418 or extra switch-translations. */
423 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
424 or extra switch-translations. */
426 #define CC1PLUS_SPEC ""
429 /* config.h can define LINK_SPEC to provide extra args to the linker
430 or extra switch-translations. */
435 /* config.h can define LIB_SPEC to override the default libraries. */
437 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
440 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
443 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
444 /* Have gcc do the search for libgcc.a. */
445 #define LIBGCC_SPEC "libgcc.a%s"
447 #define LIBGCC_SPEC "-lgcc"
451 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
452 #ifndef STARTFILE_SPEC
453 #define STARTFILE_SPEC \
454 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
457 /* config.h can define SWITCHES_NEED_SPACES to control which options
458 require spaces between the option and the argument. */
459 #ifndef SWITCHES_NEED_SPACES
460 #define SWITCHES_NEED_SPACES ""
463 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
465 #define ENDFILE_SPEC ""
468 /* This spec is used for telling cpp whether char is signed or not. */
469 #ifndef SIGNED_CHAR_SPEC
470 /* Use #if rather than ?:
471 because MIPS C compiler rejects like ?: in initializers. */
472 #if DEFAULT_SIGNED_CHAR
473 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
475 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
479 static char *cpp_spec = CPP_SPEC;
480 static char *cpp_predefines = CPP_PREDEFINES;
481 static char *cc1_spec = CC1_SPEC;
482 static char *cc1plus_spec = CC1PLUS_SPEC;
483 static char *signed_char_spec = SIGNED_CHAR_SPEC;
484 static char *asm_spec = ASM_SPEC;
485 static char *asm_final_spec = ASM_FINAL_SPEC;
486 static char *link_spec = LINK_SPEC;
487 static char *lib_spec = LIB_SPEC;
488 static char *libgcc_spec = LIBGCC_SPEC;
489 static char *endfile_spec = ENDFILE_SPEC;
490 static char *startfile_spec = STARTFILE_SPEC;
491 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
493 /* Some compilers have limits on line lengths, and the multilib_select
494 and/or multilib_matches strings can be very long, so we build them at
496 static struct obstack multilib_obstack;
497 static char *multilib_select;
498 static char *multilib_matches;
499 static char *multilib_defaults;
500 #include "multilib.h"
502 /* Check whether a particular argument is a default argument. */
504 #ifndef MULTILIB_DEFAULTS
505 #define MULTILIB_DEFAULTS { "" }
508 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
511 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
514 /* This defines which switch letters take arguments. */
516 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
517 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
518 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
519 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
520 || (CHAR) == 'L' || (CHAR) == 'A')
522 #ifndef SWITCH_TAKES_ARG
523 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
526 /* This defines which multi-letter switches take arguments. */
528 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
529 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
530 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
531 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
532 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
533 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
534 || !strcmp (STR, "isystem"))
536 #ifndef WORD_SWITCH_TAKES_ARG
537 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
540 /* Record the mapping from file suffixes for compilation specs. */
544 char *suffix; /* Use this compiler for input files
545 whose names end in this suffix. */
547 char *spec[4]; /* To use this compiler, concatenate these
548 specs and pass to do_spec. */
551 /* Pointer to a vector of `struct compiler' that gives the spec for
552 compiling a file, based on its suffix.
553 A file that does not end in any of these suffixes will be passed
554 unchanged to the loader and nothing else will be done to it.
556 An entry containing two 0s is used to terminate the vector.
558 If multiple entries match a file, the last matching one is used. */
560 static struct compiler *compilers;
562 /* Number of entries in `compilers', not counting the null terminator. */
564 static int n_compilers;
566 /* The default list of file name suffixes and their compilation specs. */
568 static struct compiler default_compilers[] =
570 /* Add lists of suffixes of known languages here. If those languages
571 were no present when we built the driver, we will hit these copies
572 and given a more meaningful error than "file not used since
573 linking is not done". */
574 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
575 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
576 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
577 {".fpp", "#Fortran"},
578 /* Next come the entries for C. */
581 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
582 %{C:%{!E:%eGNU C does not support -C without using -E}}\
583 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
584 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
585 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
586 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
587 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
588 %{traditional-cpp:-traditional}\
589 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
590 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
591 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
592 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
593 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
594 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
596 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
597 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
599 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
600 %{!pipe:%g.s} %A\n }}}}"},
602 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
603 %{C:%{!E:%eGNU C does not support -C without using -E}}\
604 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
605 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
606 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
607 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
608 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
609 %{traditional-cpp:-traditional}\
610 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
612 %{!E:%e-E required when input is from standard input}"},
613 {".m", "@objective-c"},
615 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
616 %{C:%{!E:%eGNU C does not support -C without using -E}}\
617 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
618 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
619 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
620 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
621 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
622 %{traditional-cpp:-traditional}\
623 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
624 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
625 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
626 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
627 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
628 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
629 -lang-objc %{gen-decls} \
631 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
632 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
634 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
635 %{!pipe:%g.s} %A\n }}}}"},
638 "%{!E:%eCompilation of header file requested} \
639 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
640 %{C:%{!E:%eGNU C does not support -C without using -E}}\
641 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
642 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
643 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
644 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
645 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
646 %{traditional-cpp:-traditional}\
647 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
649 {".i", "@cpp-output"},
651 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
652 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
653 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
655 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
656 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
658 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
659 %{!pipe:%g.s} %A\n }}}}"},
660 {".s", "@assembler"},
662 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
663 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
665 {".S", "@assembler-with-cpp"},
666 {"@assembler-with-cpp",
667 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
668 %{C:%{!E:%eGNU C does not support -C without using -E}}\
669 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
670 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
671 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
672 %{traditional-cpp:-traditional}\
673 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
674 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
675 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
676 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
677 %{!pipe:%g.s} %A\n }}}}"},
679 /* Mark end of table */
683 /* Number of elements in default_compilers, not counting the terminator. */
685 static int n_default_compilers
686 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
688 /* Here is the spec for running the linker, after compiling all files. */
690 /* -u* was put back because both BSD and SysV seem to support it. */
691 /* %{static:} simply prevents an error message if the target machine
692 doesn't handle -static. */
693 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
694 scripts which exist in user specified directories, or in standard
696 #ifdef LINK_LIBGCC_SPECIAL
697 /* Don't generate -L options. */
698 static char *link_command_spec = "\
700 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
701 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
702 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
703 %{static:} %{L*} %{T*} %o\
704 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
705 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
708 static char *link_command_spec = "\
710 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
711 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
712 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
713 %{static:} %{L*} %D %{T*} %o\
714 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
715 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
718 /* A vector of options to give to the linker.
719 These options are accumulated by %x,
720 and substituted into the linker command with %X. */
721 static int n_linker_options;
722 static char **linker_options;
724 /* A vector of options to give to the assembler.
725 These options are accumulated by -Wa,
726 and substituted into the assembler command with %Y. */
727 static int n_assembler_options;
728 static char **assembler_options;
730 /* A vector of options to give to the preprocessor.
731 These options are accumulated by -Wp,
732 and substituted into the preprocessor command with %Z. */
733 static int n_preprocessor_options;
734 static char **preprocessor_options;
736 /* Define how to map long options into short ones. */
738 /* This structure describes one mapping. */
741 /* The long option's name. */
743 /* The equivalent short option. */
745 /* Argument info. A string of flag chars; NULL equals no options.
746 a => argument required.
747 o => argument optional.
748 j => join argument to equivalent, making one word.
749 * => require other text after NAME as an argument. */
753 /* This is the table of mappings. Mappings are tried sequentially
754 for each option encountered; the first one that matches, wins. */
756 struct option_map option_map[] =
758 {"--all-warnings", "-Wall", 0},
759 {"--ansi", "-ansi", 0},
760 {"--assemble", "-S", 0},
761 {"--assert", "-A", "a"},
762 {"--comments", "-C", 0},
763 {"--compile", "-c", 0},
764 {"--debug", "-g", "oj"},
765 {"--define-macro", "-D", "a"},
766 {"--dependencies", "-M", 0},
767 {"--dump", "-d", "a"},
768 {"--dumpbase", "-dumpbase", "a"},
769 {"--entry", "-e", 0},
770 {"--extra-warnings", "-W", 0},
771 {"--for-assembler", "-Wa", "a"},
772 {"--for-linker", "-Xlinker", "a"},
773 {"--force-link", "-u", "a"},
774 {"--imacros", "-imacros", "a"},
775 {"--include", "-include", "a"},
776 {"--include-barrier", "-I-", 0},
777 {"--include-directory", "-I", "a"},
778 {"--include-directory-after", "-idirafter", "a"},
779 {"--include-prefix", "-iprefix", "a"},
780 {"--include-with-prefix", "-iwithprefix", "a"},
781 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
782 {"--include-with-prefix-after", "-iwithprefix", "a"},
783 {"--language", "-x", "a"},
784 {"--library-directory", "-L", "a"},
785 {"--machine", "-m", "aj"},
786 {"--machine-", "-m", "*j"},
787 {"--no-line-commands", "-P", 0},
788 {"--no-precompiled-includes", "-noprecomp", 0},
789 {"--no-standard-includes", "-nostdinc", 0},
790 {"--no-standard-libraries", "-nostdlib", 0},
791 {"--no-warnings", "-w", 0},
792 {"--optimize", "-O", "oj"},
793 {"--output", "-o", "a"},
794 {"--pedantic", "-pedantic", 0},
795 {"--pedantic-errors", "-pedantic-errors", 0},
796 {"--pipe", "-pipe", 0},
797 {"--prefix", "-B", "a"},
798 {"--preprocess", "-E", 0},
799 {"--print-search-dirs", "-print-search-dirs", 0},
800 {"--print-file-name", "-print-file-name=", "aj"},
801 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
802 {"--print-missing-file-dependencies", "-MG", 0},
803 {"--print-multi-lib", "-print-multi-lib", 0},
804 {"--print-multi-directory", "-print-multi-directory", 0},
805 {"--print-prog-name", "-print-prog-name=", "aj"},
806 {"--profile", "-p", 0},
807 {"--profile-blocks", "-a", 0},
808 {"--quiet", "-q", 0},
809 {"--save-temps", "-save-temps", 0},
810 {"--shared", "-shared", 0},
811 {"--silent", "-q", 0},
812 {"--static", "-static", 0},
813 {"--symbolic", "-symbolic", 0},
814 {"--target", "-b", "a"},
815 {"--trace-includes", "-H", 0},
816 {"--traditional", "-traditional", 0},
817 {"--traditional-cpp", "-traditional-cpp", 0},
818 {"--trigraphs", "-trigraphs", 0},
819 {"--undefine-macro", "-U", "a"},
820 {"--use-version", "-V", "a"},
821 {"--user-dependencies", "-MM", 0},
822 {"--verbose", "-v", 0},
823 {"--version", "-dumpversion", 0},
824 {"--warn-", "-W", "*j"},
825 {"--write-dependencies", "-MD", 0},
826 {"--write-user-dependencies", "-MMD", 0},
830 /* Translate the options described by *ARGCP and *ARGVP.
831 Make a new vector and store it back in *ARGVP,
832 and store its length in *ARGVC. */
835 translate_options (argcp, argvp)
841 char **argv = *argvp;
842 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
846 newv[newindex++] = argv[i++];
850 /* Translate -- options. */
851 if (argv[i][0] == '-' && argv[i][1] == '-')
853 /* Find a mapping that applies to this option. */
854 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
856 int optlen = strlen (option_map[j].name);
857 int arglen = strlen (argv[i]);
858 int complen = arglen > optlen ? optlen : arglen;
859 char *arginfo = option_map[j].arg_info;
864 if (!strncmp (argv[i], option_map[j].name, complen))
871 k < sizeof (option_map) / sizeof (option_map[0]);
873 if (strlen (option_map[k].name) >= arglen
874 && !strncmp (argv[i], option_map[k].name, arglen))
876 error ("Ambiguous abbreviation %s", argv[i]);
880 if (k != sizeof (option_map) / sizeof (option_map[0]))
886 /* If the option has an argument, accept that. */
887 if (argv[i][optlen] == '=')
888 arg = argv[i] + optlen + 1;
890 /* If this mapping requires extra text at end of name,
891 accept that as "argument". */
892 else if (index (arginfo, '*') != 0)
893 arg = argv[i] + optlen;
895 /* Otherwise, extra text at end means mismatch.
896 Try other mappings. */
901 else if (index (arginfo, '*') != 0)
903 error ("Incomplete `%s' option", option_map[j].name);
907 /* Handle arguments. */
908 if (index (arginfo, 'a') != 0)
914 error ("Missing argument to `%s' option",
922 else if (index (arginfo, '*') != 0)
924 else if (index (arginfo, 'o') == 0)
927 error ("Extraneous argument to `%s' option",
932 /* Store the translation as one argv elt or as two. */
933 if (arg != 0 && index (arginfo, 'j') != 0)
934 newv[newindex++] = concat (option_map[j].equivalent, arg,
938 newv[newindex++] = option_map[j].equivalent;
939 newv[newindex++] = arg;
942 newv[newindex++] = option_map[j].equivalent;
950 /* Handle old-fashioned options--just copy them through,
951 with their arguments. */
952 else if (argv[i][0] == '-')
954 char *p = argv[i] + 1;
958 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
959 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
960 else if (WORD_SWITCH_TAKES_ARG (p))
961 nskip += WORD_SWITCH_TAKES_ARG (p);
962 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
965 else if (! strcmp (p, "Xlinker"))
968 /* Watch out for an option at the end of the command line that
969 is missing arguments, and avoid skipping past the end of the
971 if (nskip + i > argc)
976 newv[newindex++] = argv[i++];
981 /* Ordinary operands, or +e options. */
982 newv[newindex++] = argv[i++];
1001 static char buffer[30];
1003 return "cannot access";
1005 if (e > 0 && e < sys_nerr)
1006 return sys_errlist[e];
1008 sprintf (buffer, "Unknown error %d", e);
1013 /* Read compilation specs from a file named FILENAME,
1014 replacing the default ones.
1016 A suffix which starts with `*' is a definition for
1017 one of the machine-specific sub-specs. The "suffix" should be
1018 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1019 The corresponding spec is stored in asm_spec, etc.,
1020 rather than in the `compilers' vector.
1022 Anything invalid in the file is a fatal error. */
1025 read_specs (filename)
1030 struct stat statbuf;
1035 fprintf (stderr, "Reading specs from %s\n", filename);
1037 /* Open and stat the file. */
1038 desc = open (filename, O_RDONLY, 0);
1040 pfatal_with_name (filename);
1041 if (stat (filename, &statbuf) < 0)
1042 pfatal_with_name (filename);
1044 /* Read contents of file into BUFFER. */
1045 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1046 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1048 pfatal_with_name (filename);
1049 buffer[readlen] = 0;
1052 /* Scan BUFFER for specs, putting them in the vector. */
1058 char *in, *out, *p1, *p2;
1060 /* Advance P in BUFFER to the next nonblank nocomment line. */
1061 p = skip_whitespace (p);
1065 /* Find the colon that should end the suffix. */
1067 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1068 /* The colon shouldn't be missing. */
1070 fatal ("specs file malformed after %d characters", p1 - buffer);
1071 /* Skip back over trailing whitespace. */
1073 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1074 /* Copy the suffix to a string. */
1075 suffix = save_string (p, p2 - p);
1076 /* Find the next line. */
1077 p = skip_whitespace (p1 + 1);
1079 fatal ("specs file malformed after %d characters", p - buffer);
1081 /* Find next blank line. */
1082 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1083 /* Specs end at the blank line and do not include the newline. */
1084 spec = save_string (p, p1 - p);
1087 /* Delete backslash-newline sequences from the spec. */
1092 if (in[0] == '\\' && in[1] == '\n')
1094 else if (in[0] == '#')
1096 while (*in && *in != '\n') in++;
1103 if (suffix[0] == '*')
1105 if (! strcmp (suffix, "*link_command"))
1106 link_command_spec = spec;
1108 set_spec (suffix + 1, spec);
1112 /* Add this pair to the vector. */
1114 = ((struct compiler *)
1115 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1116 compilers[n_compilers].suffix = suffix;
1117 bzero ((char *) compilers[n_compilers].spec,
1118 sizeof compilers[n_compilers].spec);
1119 compilers[n_compilers].spec[0] = spec;
1121 bzero ((char *) &compilers[n_compilers],
1122 sizeof compilers[n_compilers]);
1126 link_command_spec = spec;
1129 if (link_command_spec == 0)
1130 fatal ("spec file has no spec for linking");
1139 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1140 be considered whitespace. */
1141 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1143 else if (*p == '\n' || *p == ' ' || *p == '\t')
1147 while (*p != '\n') p++;
1157 /* Structure to keep track of the specs that have been defined so far.
1158 These are accessed using %(specname) or %[specname] in a compiler
1163 char *name; /* Name of the spec. */
1164 char *spec; /* The spec itself. */
1165 struct spec_list *next; /* Next spec in linked list. */
1168 /* List of specs that have been defined so far. */
1170 static struct spec_list *specs = (struct spec_list *) 0;
1172 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1173 removed; If the spec starts with a + then SPEC is added to the end of the
1177 set_spec (name, spec)
1181 struct spec_list *sl;
1184 /* See if the spec already exists */
1185 for (sl = specs; sl; sl = sl->next)
1186 if (strcmp (sl->name, name) == 0)
1191 /* Not found - make it */
1192 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1193 sl->name = save_string (name, strlen (name));
1194 sl->spec = save_string ("", 0);
1199 old_spec = sl->spec;
1200 if (name && spec[0] == '+' && isspace (spec[1]))
1201 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1203 sl->spec = save_string (spec, strlen (spec));
1205 if (! strcmp (name, "asm"))
1206 asm_spec = sl->spec;
1207 else if (! strcmp (name, "asm_final"))
1208 asm_final_spec = sl->spec;
1209 else if (! strcmp (name, "cc1"))
1210 cc1_spec = sl->spec;
1211 else if (! strcmp (name, "cc1plus"))
1212 cc1plus_spec = sl->spec;
1213 else if (! strcmp (name, "cpp"))
1214 cpp_spec = sl->spec;
1215 else if (! strcmp (name, "endfile"))
1216 endfile_spec = sl->spec;
1217 else if (! strcmp (name, "lib"))
1218 lib_spec = sl->spec;
1219 else if (! strcmp (name, "libgcc"))
1220 libgcc_spec = sl->spec;
1221 else if (! strcmp (name, "link"))
1222 link_spec = sl->spec;
1223 else if (! strcmp (name, "predefines"))
1224 cpp_predefines = sl->spec;
1225 else if (! strcmp (name, "signed_char"))
1226 signed_char_spec = sl->spec;
1227 else if (! strcmp (name, "startfile"))
1228 startfile_spec = sl->spec;
1229 else if (! strcmp (name, "switches_need_spaces"))
1230 switches_need_spaces = sl->spec;
1231 else if (! strcmp (name, "cross_compile"))
1232 cross_compile = atoi (sl->spec);
1233 else if (! strcmp (name, "multilib"))
1234 multilib_select = sl->spec;
1235 else if (! strcmp (name, "multilib_matches"))
1236 multilib_matches = sl->spec;
1237 else if (! strcmp (name, "multilib_extra"))
1238 multilib_extra = sl->spec;
1239 else if (! strcmp (name, "multilib_defaults"))
1240 multilib_defaults = sl->spec;
1245 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1247 if (! strcmp (name, extra_specs[i].name))
1249 extra_specs[i].spec = sl->spec;
1256 /* Free the old spec */
1261 /* Accumulate a command (program name and args), and run it. */
1263 /* Vector of pointers to arguments in the current line of specifications. */
1265 static char **argbuf;
1267 /* Number of elements allocated in argbuf. */
1269 static int argbuf_length;
1271 /* Number of elements in argbuf currently in use (containing args). */
1273 static int argbuf_index;
1275 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1276 temp file. Used only if MKTEMP_EACH_FILE. */
1278 static struct temp_name {
1279 char *suffix; /* suffix associated with the code. */
1280 int length; /* strlen (suffix). */
1281 int unique; /* Indicates whether %g or %u/%U was used. */
1282 char *filename; /* associated filename. */
1283 int filename_length; /* strlen (filename). */
1284 struct temp_name *next;
1287 /* Number of commands executed so far. */
1289 static int execution_count;
1291 /* Number of commands that exited with a signal. */
1293 static int signal_count;
1295 /* Name with which this program was invoked. */
1297 static char *programname;
1299 /* Structures to keep track of prefixes to try when looking for files. */
1303 char *prefix; /* String to prepend to the path. */
1304 struct prefix_list *next; /* Next in linked list. */
1305 int require_machine_suffix; /* Don't use without machine_suffix. */
1306 /* 2 means try both machine_suffix and just_machine_suffix. */
1307 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1312 struct prefix_list *plist; /* List of prefixes to try */
1313 int max_len; /* Max length of a prefix in PLIST */
1314 char *name; /* Name of this list (used in config stuff) */
1317 /* List of prefixes to try when looking for executables. */
1319 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1321 /* List of prefixes to try when looking for startup (crt0) files. */
1323 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1325 /* List of prefixes to try when looking for include files. */
1327 static struct path_prefix include_prefixes = { 0, 0, "include" };
1329 /* Suffix to attach to directories searched for commands.
1330 This looks like `MACHINE/VERSION/'. */
1332 static char *machine_suffix = 0;
1334 /* Suffix to attach to directories searched for commands.
1335 This is just `MACHINE/'. */
1337 static char *just_machine_suffix = 0;
1339 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1341 static char *gcc_exec_prefix;
1343 /* Default prefixes to attach to command names. */
1345 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1346 #undef MD_EXEC_PREFIX
1347 #undef MD_STARTFILE_PREFIX
1348 #undef MD_STARTFILE_PREFIX_1
1351 #ifndef STANDARD_EXEC_PREFIX
1352 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1353 #endif /* !defined STANDARD_EXEC_PREFIX */
1355 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1356 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1357 #ifdef MD_EXEC_PREFIX
1358 static char *md_exec_prefix = MD_EXEC_PREFIX;
1361 #ifndef STANDARD_STARTFILE_PREFIX
1362 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1363 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1365 #ifdef MD_STARTFILE_PREFIX
1366 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1368 #ifdef MD_STARTFILE_PREFIX_1
1369 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1371 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1372 static char *standard_startfile_prefix_1 = "/lib/";
1373 static char *standard_startfile_prefix_2 = "/usr/lib/";
1375 #ifndef TOOLDIR_BASE_PREFIX
1376 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1378 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1379 static char *tooldir_prefix;
1381 /* Subdirectory to use for locating libraries. Set by
1382 set_multilib_dir based on the compilation options. */
1384 static char *multilib_dir;
1386 /* Clear out the vector of arguments (after a command is executed). */
1394 /* Add one argument to the vector at the end.
1395 This is done when a space is seen or at the end of the line.
1396 If DELETE_ALWAYS is nonzero, the arg is a filename
1397 and the file should be deleted eventually.
1398 If DELETE_FAILURE is nonzero, the arg is a filename
1399 and the file should be deleted if this compilation fails. */
1402 store_arg (arg, delete_always, delete_failure)
1404 int delete_always, delete_failure;
1406 if (argbuf_index + 1 == argbuf_length)
1408 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1411 argbuf[argbuf_index++] = arg;
1412 argbuf[argbuf_index] = 0;
1414 if (delete_always || delete_failure)
1415 record_temp_file (arg, delete_always, delete_failure);
1418 /* Record the names of temporary files we tell compilers to write,
1419 and delete them at the end of the run. */
1421 /* This is the common prefix we use to make temp file names.
1422 It is chosen once for each run of this program.
1423 It is substituted into a spec by %g.
1424 Thus, all temp file names contain this prefix.
1425 In practice, all temp file names start with this prefix.
1427 This prefix comes from the envvar TMPDIR if it is defined;
1428 otherwise, from the P_tmpdir macro if that is defined;
1429 otherwise, in /usr/tmp or /tmp;
1430 or finally the current directory if all else fails. */
1432 static char *temp_filename;
1434 /* Length of the prefix. */
1436 static int temp_filename_length;
1438 /* Define the list of temporary files to delete. */
1443 struct temp_file *next;
1446 /* Queue of files to delete on success or failure of compilation. */
1447 static struct temp_file *always_delete_queue;
1448 /* Queue of files to delete on failure of compilation. */
1449 static struct temp_file *failure_delete_queue;
1451 /* Record FILENAME as a file to be deleted automatically.
1452 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1453 otherwise delete it in any case.
1454 FAIL_DELETE nonzero means delete it if a compilation step fails;
1455 otherwise delete it in any case. */
1458 record_temp_file (filename, always_delete, fail_delete)
1463 register char *name;
1464 name = xmalloc (strlen (filename) + 1);
1465 strcpy (name, filename);
1469 register struct temp_file *temp;
1470 for (temp = always_delete_queue; temp; temp = temp->next)
1471 if (! strcmp (name, temp->name))
1473 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1474 temp->next = always_delete_queue;
1476 always_delete_queue = temp;
1482 register struct temp_file *temp;
1483 for (temp = failure_delete_queue; temp; temp = temp->next)
1484 if (! strcmp (name, temp->name))
1486 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1487 temp->next = failure_delete_queue;
1489 failure_delete_queue = temp;
1494 /* Delete all the temporary files whose names we previously recorded. */
1497 delete_if_ordinary (name)
1504 printf ("Delete %s? (y or n) ", name);
1508 while ((c = getchar ()) != '\n' && c != EOF) ;
1509 if (i == 'y' || i == 'Y')
1511 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1512 if (unlink (name) < 0)
1514 perror_with_name (name);
1518 delete_temp_files ()
1520 register struct temp_file *temp;
1522 for (temp = always_delete_queue; temp; temp = temp->next)
1523 delete_if_ordinary (temp->name);
1524 always_delete_queue = 0;
1527 /* Delete all the files to be deleted on error. */
1530 delete_failure_queue ()
1532 register struct temp_file *temp;
1534 for (temp = failure_delete_queue; temp; temp = temp->next)
1535 delete_if_ordinary (temp->name);
1539 clear_failure_queue ()
1541 failure_delete_queue = 0;
1544 /* Routine to add variables to the environment. We do this to pass
1545 the pathname of the gcc driver, and the directories search to the
1546 collect2 program, which is being run as ld. This way, we can be
1547 sure of executing the right compiler when collect2 wants to build
1548 constructors and destructors. Since the environment variables we
1549 use come from an obstack, we don't have to worry about allocating
1558 #ifndef VMS /* nor about VMS */
1560 extern char **environ;
1561 char **old_environ = environ;
1565 int str_len = strlen (str);
1569 while ((ch = *p++) != '\0' && ch != '=')
1575 /* Search for replacing an existing environment variable, and
1576 count the number of total environment variables. */
1577 for (envp = old_environ; *envp; envp++)
1580 if (!strncmp (str, *envp, name_len))
1587 /* Add a new environment variable */
1588 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1590 bcopy ((char *) old_environ, (char *) (environ + 1),
1591 sizeof (char *) * (num_envs+1));
1596 #endif /* HAVE_PUTENV */
1599 /* Build a list of search directories from PATHS.
1600 PREFIX is a string to prepend to the list.
1601 If CHECK_DIR_P is non-zero we ensure the directory exists.
1602 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1603 It is also used by the --print-search-dirs flag. */
1606 build_search_list (paths, prefix, check_dir_p)
1607 struct path_prefix *paths;
1611 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1613 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1614 int first_time = TRUE;
1615 struct prefix_list *pprefix;
1617 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1619 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1621 int len = strlen (pprefix->prefix);
1625 || is_directory (pprefix->prefix, machine_suffix, 0)))
1628 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1631 obstack_grow (&collect_obstack, pprefix->prefix, len);
1632 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1635 if (just_machine_suffix
1636 && pprefix->require_machine_suffix == 2
1638 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1641 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1644 obstack_grow (&collect_obstack, pprefix->prefix, len);
1645 obstack_grow (&collect_obstack, just_machine_suffix,
1649 if (!pprefix->require_machine_suffix)
1652 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1655 obstack_grow (&collect_obstack, pprefix->prefix, len);
1658 obstack_1grow (&collect_obstack, '\0');
1659 return obstack_finish (&collect_obstack);
1662 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1666 putenv_from_prefixes (paths, env_var)
1667 struct path_prefix *paths;
1670 putenv (build_search_list (paths, env_var, 1));
1673 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1674 access to check permissions.
1675 Return 0 if not found, otherwise return its name, allocated with malloc. */
1678 find_a_file (pprefix, name, mode)
1679 struct path_prefix *pprefix;
1684 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1685 struct prefix_list *pl;
1686 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1689 len += strlen (machine_suffix);
1691 temp = xmalloc (len);
1693 /* Determine the filename to execute (special case for absolute paths). */
1695 if (*name == '/' || *name == DIR_SEPARATOR)
1697 if (access (name, mode))
1699 strcpy (temp, name);
1704 for (pl = pprefix->plist; pl; pl = pl->next)
1708 /* Some systems have a suffix for executable files.
1709 So try appending that first. */
1710 if (file_suffix[0] != 0)
1712 strcpy (temp, pl->prefix);
1713 strcat (temp, machine_suffix);
1714 strcat (temp, name);
1715 strcat (temp, file_suffix);
1716 if (access (temp, mode) == 0)
1718 if (pl->used_flag_ptr != 0)
1719 *pl->used_flag_ptr = 1;
1724 /* Now try just the name. */
1725 strcpy (temp, pl->prefix);
1726 strcat (temp, machine_suffix);
1727 strcat (temp, name);
1728 if (access (temp, mode) == 0)
1730 if (pl->used_flag_ptr != 0)
1731 *pl->used_flag_ptr = 1;
1736 /* Certain prefixes are tried with just the machine type,
1737 not the version. This is used for finding as, ld, etc. */
1738 if (just_machine_suffix && pl->require_machine_suffix == 2)
1740 /* Some systems have a suffix for executable files.
1741 So try appending that first. */
1742 if (file_suffix[0] != 0)
1744 strcpy (temp, pl->prefix);
1745 strcat (temp, just_machine_suffix);
1746 strcat (temp, name);
1747 strcat (temp, file_suffix);
1748 if (access (temp, mode) == 0)
1750 if (pl->used_flag_ptr != 0)
1751 *pl->used_flag_ptr = 1;
1756 strcpy (temp, pl->prefix);
1757 strcat (temp, just_machine_suffix);
1758 strcat (temp, name);
1759 if (access (temp, mode) == 0)
1761 if (pl->used_flag_ptr != 0)
1762 *pl->used_flag_ptr = 1;
1767 /* Certain prefixes can't be used without the machine suffix
1768 when the machine or version is explicitly specified. */
1769 if (!pl->require_machine_suffix)
1771 /* Some systems have a suffix for executable files.
1772 So try appending that first. */
1773 if (file_suffix[0] != 0)
1775 strcpy (temp, pl->prefix);
1776 strcat (temp, name);
1777 strcat (temp, file_suffix);
1778 if (access (temp, mode) == 0)
1780 if (pl->used_flag_ptr != 0)
1781 *pl->used_flag_ptr = 1;
1786 strcpy (temp, pl->prefix);
1787 strcat (temp, name);
1788 if (access (temp, mode) == 0)
1790 if (pl->used_flag_ptr != 0)
1791 *pl->used_flag_ptr = 1;
1801 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1802 at the start of the list, otherwise it goes at the end.
1804 If WARN is nonzero, we will warn if no file is found
1805 through this prefix. WARN should point to an int
1806 which will be set to 1 if this entry is used.
1808 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1809 the complete value of machine_suffix.
1810 2 means try both machine_suffix and just_machine_suffix. */
1813 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1814 struct path_prefix *pprefix;
1817 int require_machine_suffix;
1820 struct prefix_list *pl, **prev;
1823 if (!first && pprefix->plist)
1825 for (pl = pprefix->plist; pl->next; pl = pl->next)
1830 prev = &pprefix->plist;
1832 /* Keep track of the longest prefix */
1834 len = strlen (prefix);
1835 if (len > pprefix->max_len)
1836 pprefix->max_len = len;
1838 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1839 pl->prefix = save_string (prefix, len);
1840 pl->require_machine_suffix = require_machine_suffix;
1841 pl->used_flag_ptr = warn;
1848 pl->next = (struct prefix_list *) 0;
1852 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1855 unused_prefix_warnings (pprefix)
1856 struct path_prefix *pprefix;
1858 struct prefix_list *pl = pprefix->plist;
1862 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1864 if (pl->require_machine_suffix && machine_suffix)
1865 error ("file path prefix `%s%s' never used", pl->prefix,
1868 error ("file path prefix `%s' never used", pl->prefix);
1870 /* Prevent duplicate warnings. */
1871 *pl->used_flag_ptr = 1;
1877 /* Get rid of all prefixes built up so far in *PLISTP. */
1880 free_path_prefix (pprefix)
1881 struct path_prefix *pprefix;
1883 struct prefix_list *pl = pprefix->plist;
1884 struct prefix_list *temp;
1890 free (temp->prefix);
1891 free ((char *) temp);
1893 pprefix->plist = (struct prefix_list *) 0;
1896 /* Execute the command specified by the arguments on the current line of spec.
1897 When using pipes, this includes several piped-together commands
1898 with `|' between them.
1900 Return 0 if successful, -1 if failed. */
1906 int n_commands; /* # of command. */
1910 char *prog; /* program name. */
1911 char **argv; /* vector of args. */
1912 int pid; /* pid of process for this command. */
1915 struct command *commands; /* each command buffer with above info. */
1917 /* Count # of piped commands. */
1918 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1919 if (strcmp (argbuf[i], "|") == 0)
1922 /* Get storage for each command. */
1924 = (struct command *) alloca (n_commands * sizeof (struct command));
1926 /* Split argbuf into its separate piped processes,
1927 and record info about each one.
1928 Also search for the programs that are to be run. */
1930 commands[0].prog = argbuf[0]; /* first command. */
1931 commands[0].argv = &argbuf[0];
1932 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1934 commands[0].argv[0] = string;
1936 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1937 if (strcmp (argbuf[i], "|") == 0)
1938 { /* each command. */
1939 #if defined (__MSDOS__) || defined (_WIN32) || defined (OS2)
1940 fatal ("-pipe not supported");
1942 argbuf[i] = 0; /* termination of command args. */
1943 commands[n_commands].prog = argbuf[i + 1];
1944 commands[n_commands].argv = &argbuf[i + 1];
1945 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1947 commands[n_commands].argv[0] = string;
1951 argbuf[argbuf_index] = 0;
1953 /* If -v, print what we are about to do, and maybe query. */
1957 /* Print each piped command as a separate line. */
1958 for (i = 0; i < n_commands ; i++)
1962 for (j = commands[i].argv; *j; j++)
1963 fprintf (stderr, " %s", *j);
1965 /* Print a pipe symbol after all but the last command. */
1966 if (i + 1 != n_commands)
1967 fprintf (stderr, " |");
1968 fprintf (stderr, "\n");
1972 fprintf (stderr, "\nGo ahead? (y or n) ");
1976 while (getchar () != '\n') ;
1977 if (i != 'y' && i != 'Y')
1982 /* Run each piped subprocess. */
1984 for (i = 0; i < n_commands; i++)
1986 char *errmsg_fmt, *errmsg_arg;
1987 char *string = commands[i].argv[0];
1989 commands[i].pid = pexecute (string, commands[i].argv,
1990 programname, temp_filename,
1991 &errmsg_fmt, &errmsg_arg,
1992 ((i == 0 ? PEXECUTE_FIRST : 0)
1993 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
1994 | (string == commands[i].prog
1995 ? PEXECUTE_SEARCH : 0)
1996 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
1998 if (commands[i].pid == -1)
1999 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2001 if (string != commands[i].prog)
2007 /* Wait for all the subprocesses to finish.
2008 We don't care what order they finish in;
2009 we know that N_COMMANDS waits will get them all.
2010 Ignore subprocesses that we don't know about,
2011 since they can be spawned by the process that exec'ed us. */
2016 for (i = 0; i < n_commands; )
2022 pid = pwait (commands[i].pid, &status, 0);
2026 for (j = 0; j < n_commands; j++)
2027 if (commands[j].pid == pid)
2032 if (WIFSIGNALED (status))
2034 fatal ("Internal compiler error: program %s got fatal signal %d",
2035 commands[j].prog, WTERMSIG (status));
2039 else if (WIFEXITED (status)
2040 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2050 /* Find all the switches given to us
2051 and make a vector describing them.
2052 The elements of the vector are strings, one per switch given.
2053 If a switch uses following arguments, then the `part1' field
2054 is the switch itself and the `args' field
2055 is a null-terminated vector containing the following arguments.
2056 The `live_cond' field is 1 if the switch is true in a conditional spec,
2057 -1 if false (overridden by a later switch), and is initialized to zero.
2058 The `valid' field is nonzero if any spec has looked at this switch;
2059 if it remains zero at the end of the run, it must be meaningless. */
2069 static struct switchstr *switches;
2071 static int n_switches;
2079 /* Also a vector of input files specified. */
2081 static struct infile *infiles;
2083 static int n_infiles;
2085 /* And a vector of corresponding output files is made up later. */
2087 static char **outfiles;
2089 /* Used to track if none of the -B paths are used. */
2092 /* Used to track if standard path isn't used and -b or -V is specified. */
2093 static int warn_std;
2095 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2096 static int *warn_std_ptr = 0;
2098 /* Create the vector `switches' and its contents.
2099 Store its length in `n_switches'. */
2102 process_command (argc, argv)
2108 char *spec_lang = 0;
2109 int last_language_n_infiles;
2112 int lang_n_infiles = 0;
2114 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2119 /* Figure compiler version from version string. */
2121 compiler_version = save_string (version_string, strlen (version_string));
2122 for (temp = compiler_version; *temp; ++temp)
2131 /* Set up the default search paths. */
2133 if (gcc_exec_prefix)
2135 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2136 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2139 /* COMPILER_PATH and LIBRARY_PATH have values
2140 that are lists of directory names with colons. */
2142 temp = getenv ("COMPILER_PATH");
2145 char *startp, *endp;
2146 char *nstore = (char *) alloca (strlen (temp) + 3);
2148 startp = endp = temp;
2151 if (*endp == PATH_SEPARATOR || *endp == 0)
2153 strncpy (nstore, startp, endp-startp);
2155 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2156 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2158 nstore[endp-startp] = DIR_SEPARATOR;
2159 nstore[endp-startp+1] = 0;
2162 nstore[endp-startp] = 0;
2163 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2166 endp = startp = endp + 1;
2173 temp = getenv ("LIBRARY_PATH");
2174 if (temp && ! cross_compile)
2176 char *startp, *endp;
2177 char *nstore = (char *) alloca (strlen (temp) + 3);
2179 startp = endp = temp;
2182 if (*endp == PATH_SEPARATOR || *endp == 0)
2184 strncpy (nstore, startp, endp-startp);
2186 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2187 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2189 nstore[endp-startp] = DIR_SEPARATOR;
2190 nstore[endp-startp+1] = 0;
2193 nstore[endp-startp] = 0;
2194 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2197 endp = startp = endp + 1;
2204 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2205 temp = getenv ("LPATH");
2206 if (temp && ! cross_compile)
2208 char *startp, *endp;
2209 char *nstore = (char *) alloca (strlen (temp) + 3);
2211 startp = endp = temp;
2214 if (*endp == PATH_SEPARATOR || *endp == 0)
2216 strncpy (nstore, startp, endp-startp);
2218 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2219 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2221 nstore[endp-startp] = DIR_SEPARATOR;
2222 nstore[endp-startp+1] = 0;
2225 nstore[endp-startp] = 0;
2226 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2229 endp = startp = endp + 1;
2236 /* Convert new-style -- options to old-style. */
2237 translate_options (&argc, &argv);
2239 /* Scan argv twice. Here, the first time, just count how many switches
2240 there will be in their vector, and how many input files in theirs.
2241 Here we also parse the switches that cc itself uses (e.g. -v). */
2243 for (i = 1; i < argc; i++)
2245 if (! strcmp (argv[i], "-dumpspecs"))
2247 printf ("*asm:\n%s\n\n", asm_spec);
2248 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2249 printf ("*cpp:\n%s\n\n", cpp_spec);
2250 printf ("*cc1:\n%s\n\n", cc1_spec);
2251 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2252 printf ("*endfile:\n%s\n\n", endfile_spec);
2253 printf ("*link:\n%s\n\n", link_spec);
2254 printf ("*lib:\n%s\n\n", lib_spec);
2255 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2256 printf ("*startfile:\n%s\n\n", startfile_spec);
2257 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2258 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2259 printf ("*predefines:\n%s\n\n", cpp_predefines);
2260 printf ("*cross_compile:\n%d\n\n", cross_compile);
2261 printf ("*multilib:\n%s\n\n", multilib_select);
2262 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults);
2263 printf ("*multilib_extra:\n%s\n\n", multilib_extra);
2264 printf ("*multilib_matches:\n%s\n\n", multilib_matches);
2269 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2270 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2271 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2276 else if (! strcmp (argv[i], "-dumpversion"))
2278 printf ("%s\n", version_string);
2281 else if (! strcmp (argv[i], "-dumpmachine"))
2283 printf ("%s\n", spec_machine);
2286 else if (! strcmp (argv[i], "-print-search-dirs"))
2287 print_search_dirs = 1;
2288 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2289 print_file_name = "libgcc.a";
2290 else if (! strncmp (argv[i], "-print-file-name=", 17))
2291 print_file_name = argv[i] + 17;
2292 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2293 print_prog_name = argv[i] + 17;
2294 else if (! strcmp (argv[i], "-print-multi-lib"))
2295 print_multi_lib = 1;
2296 else if (! strcmp (argv[i], "-print-multi-directory"))
2297 print_multi_directory = 1;
2298 else if (! strncmp (argv[i], "-Wa,", 4))
2301 /* Pass the rest of this option to the assembler. */
2303 n_assembler_options++;
2304 if (!assembler_options)
2306 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2309 = (char **) xrealloc (assembler_options,
2310 n_assembler_options * sizeof (char **));
2312 /* Split the argument at commas. */
2314 for (j = 4; argv[i][j]; j++)
2315 if (argv[i][j] == ',')
2317 assembler_options[n_assembler_options - 1]
2318 = save_string (argv[i] + prev, j - prev);
2319 n_assembler_options++;
2321 = (char **) xrealloc (assembler_options,
2322 n_assembler_options * sizeof (char **));
2325 /* Record the part after the last comma. */
2326 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2328 else if (! strncmp (argv[i], "-Wp,", 4))
2331 /* Pass the rest of this option to the preprocessor. */
2333 n_preprocessor_options++;
2334 if (!preprocessor_options)
2335 preprocessor_options
2336 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2338 preprocessor_options
2339 = (char **) xrealloc (preprocessor_options,
2340 n_preprocessor_options * sizeof (char **));
2342 /* Split the argument at commas. */
2344 for (j = 4; argv[i][j]; j++)
2345 if (argv[i][j] == ',')
2347 preprocessor_options[n_preprocessor_options - 1]
2348 = save_string (argv[i] + prev, j - prev);
2349 n_preprocessor_options++;
2350 preprocessor_options
2351 = (char **) xrealloc (preprocessor_options,
2352 n_preprocessor_options * sizeof (char **));
2355 /* Record the part after the last comma. */
2356 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2358 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2359 /* The +e options to the C++ front-end. */
2361 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2364 /* Split the argument at commas. */
2365 for (j = 3; argv[i][j]; j++)
2366 n_infiles += (argv[i][j] == ',');
2368 else if (strcmp (argv[i], "-Xlinker") == 0)
2371 fatal ("argument to `-Xlinker' is missing");
2376 else if (strncmp (argv[i], "-l", 2) == 0)
2378 else if (strcmp (argv[i], "-save-temps") == 0)
2380 save_temps_flag = 1;
2383 else if (argv[i][0] == '-' && argv[i][1] != 0)
2385 register char *p = &argv[i][1];
2386 register int c = *p;
2391 if (p[1] == 0 && i + 1 == argc)
2392 fatal ("argument to `-b' is missing");
2394 spec_machine = argv[++i];
2396 spec_machine = p + 1;
2398 warn_std_ptr = &warn_std;
2403 int *temp = (int *) xmalloc (sizeof (int));
2405 if (p[1] == 0 && i + 1 == argc)
2406 fatal ("argument to `-B' is missing");
2411 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2412 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2413 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2416 /* As a kludge, if the arg is "[foo/]stageN/", just add
2417 "[foo/]include" to the include prefix. */
2419 int len = strlen (value);
2422 && (value[len - 8] == '/'
2423 || value[len - 8] == DIR_SEPARATOR)))
2424 && strncmp (value + len - 7, "stage", 5) == 0
2425 && isdigit (value[len - 2])
2426 && (value[len - 1] == '/'
2427 || value[len - 1] == DIR_SEPARATOR))
2430 add_prefix (&include_prefixes, "include",
2434 char *string = xmalloc (len + 1);
2435 strncpy (string, value, len-7);
2436 strcat (string, "include");
2437 add_prefix (&include_prefixes, string,
2445 case 'v': /* Print our subcommands and print versions. */
2447 /* If they do anything other than exactly `-v', don't set
2448 verbose_flag; rather, continue on to give the error. */
2455 if (p[1] == 0 && i + 1 == argc)
2456 fatal ("argument to `-V' is missing");
2458 spec_version = argv[++i];
2460 spec_version = p + 1;
2461 compiler_version = spec_version;
2462 warn_std_ptr = &warn_std;
2482 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2483 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2484 else if (WORD_SWITCH_TAKES_ARG (p))
2485 i += WORD_SWITCH_TAKES_ARG (p);
2495 if (have_c && have_o && lang_n_infiles > 1)
2496 fatal ("cannot specify -o with -c and multiple compilations");
2498 /* Set up the search paths before we go looking for config files. */
2500 /* These come before the md prefixes so that we will find gcc's subcommands
2501 (such as cpp) rather than those of the host system. */
2502 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2503 as well as trying the machine and the version. */
2505 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2506 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2509 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2510 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2512 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2513 dir_separator_str, NULL_PTR);
2515 /* If tooldir is relative, base it on exec_prefixes. A relative
2516 tooldir lets us move the installed tree as a unit.
2518 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2519 directories, so that we can search both the user specified directory
2520 and the standard place. */
2522 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2524 if (gcc_exec_prefix)
2526 char *gcc_exec_tooldir_prefix
2527 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2528 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2530 add_prefix (&exec_prefixes,
2531 concat (gcc_exec_tooldir_prefix, "bin",
2532 dir_separator_str, NULL_PTR),
2534 add_prefix (&startfile_prefixes,
2535 concat (gcc_exec_tooldir_prefix, "lib",
2536 dir_separator_str, NULL_PTR),
2540 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2541 dir_separator_str, spec_version,
2542 dir_separator_str, tooldir_prefix, NULL_PTR);
2545 add_prefix (&exec_prefixes,
2546 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2548 add_prefix (&startfile_prefixes,
2549 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2552 /* More prefixes are enabled in main, after we read the specs file
2553 and determine whether this is cross-compilation or not. */
2556 /* Then create the space for the vectors and scan again. */
2558 switches = ((struct switchstr *)
2559 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2560 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2563 last_language_n_infiles = -1;
2565 /* This, time, copy the text of each switch and store a pointer
2566 to the copy in the vector of switches.
2567 Store all the infiles in their vector. */
2569 for (i = 1; i < argc; i++)
2571 /* Just skip the switches that were handled by the preceding loop. */
2572 if (! strncmp (argv[i], "-Wa,", 4))
2574 else if (! strncmp (argv[i], "-Wp,", 4))
2576 else if (! strcmp (argv[i], "-print-search-dirs"))
2578 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2580 else if (! strncmp (argv[i], "-print-file-name=", 17))
2582 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2584 else if (! strcmp (argv[i], "-print-multi-lib"))
2586 else if (! strcmp (argv[i], "-print-multi-directory"))
2588 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2590 /* Compensate for the +e options to the C++ front-end;
2591 they're there simply for cfront call-compatibility. We do
2592 some magic in default_compilers to pass them down properly.
2593 Note we deliberately start at the `+' here, to avoid passing
2594 -e0 or -e1 down into the linker. */
2595 switches[n_switches].part1 = &argv[i][0];
2596 switches[n_switches].args = 0;
2597 switches[n_switches].live_cond = 0;
2598 switches[n_switches].valid = 0;
2601 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2604 /* Split the argument at commas. */
2606 for (j = 4; argv[i][j]; j++)
2607 if (argv[i][j] == ',')
2609 infiles[n_infiles].language = 0;
2610 infiles[n_infiles++].name
2611 = save_string (argv[i] + prev, j - prev);
2614 /* Record the part after the last comma. */
2615 infiles[n_infiles].language = 0;
2616 infiles[n_infiles++].name = argv[i] + prev;
2618 else if (strcmp (argv[i], "-Xlinker") == 0)
2620 infiles[n_infiles].language = 0;
2621 infiles[n_infiles++].name = argv[++i];
2623 else if (strncmp (argv[i], "-l", 2) == 0)
2625 infiles[n_infiles].language = 0;
2626 infiles[n_infiles++].name = argv[i];
2628 else if (argv[i][0] == '-' && argv[i][1] != 0)
2630 register char *p = &argv[i][1];
2631 register int c = *p;
2633 if (c == 'B' || c == 'b' || c == 'V')
2635 /* Skip a separate arg, if any. */
2642 if (p[1] == 0 && i + 1 == argc)
2643 fatal ("argument to `-x' is missing");
2645 spec_lang = argv[++i];
2648 if (! strcmp (spec_lang, "none"))
2649 /* Suppress the warning if -xnone comes after the last input
2650 file, because alternate command interfaces like g++ might
2651 find it useful to place -xnone after each input file. */
2654 last_language_n_infiles = n_infiles;
2657 switches[n_switches].part1 = p;
2658 /* Deal with option arguments in separate argv elements. */
2659 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2660 || WORD_SWITCH_TAKES_ARG (p))
2663 int n_args = WORD_SWITCH_TAKES_ARG (p);
2667 /* Count only the option arguments in separate argv elements. */
2668 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2670 if (i + n_args >= argc)
2671 fatal ("argument to `-%s' is missing", p);
2672 switches[n_switches].args
2673 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2675 switches[n_switches].args[j++] = argv[++i];
2676 /* Null-terminate the vector. */
2677 switches[n_switches].args[j] = 0;
2679 else if (index (switches_need_spaces, c))
2681 /* On some systems, ld cannot handle some options without
2682 a space. So split the option from its argument. */
2683 char *part1 = (char *) xmalloc (2);
2687 switches[n_switches].part1 = part1;
2688 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2689 switches[n_switches].args[0] = xmalloc (strlen (p));
2690 strcpy (switches[n_switches].args[0], &p[1]);
2691 switches[n_switches].args[1] = 0;
2694 switches[n_switches].args = 0;
2696 switches[n_switches].live_cond = 0;
2697 switches[n_switches].valid = 0;
2698 /* This is always valid, since gcc.c itself understands it. */
2699 if (!strcmp (p, "save-temps"))
2700 switches[n_switches].valid = 1;
2705 #ifdef HAVE_OBJECT_SUFFIX
2706 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2707 if (strlen (argv[i]) > 2
2708 && argv[i][strlen (argv[i]) - 2] == '.'
2709 && argv[i][strlen (argv[i]) - 1] == 'o')
2713 for (j = 0; j < strlen (argv[i]) - 2; j++)
2714 obstack_1grow (&obstack, argv[i][j]);
2716 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2717 obstack_1grow (&obstack, 0);
2718 argv[i] = obstack_finish (&obstack);
2722 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2724 perror_with_name (argv[i]);
2729 infiles[n_infiles].language = spec_lang;
2730 infiles[n_infiles++].name = argv[i];
2735 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2736 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2738 switches[n_switches].part1 = 0;
2739 infiles[n_infiles].name = 0;
2742 /* Process a spec string, accumulating and running commands. */
2744 /* These variables describe the input file name.
2745 input_file_number is the index on outfiles of this file,
2746 so that the output file name can be stored for later use by %o.
2747 input_basename is the start of the part of the input file
2748 sans all directory names, and basename_length is the number
2749 of characters starting there excluding the suffix .c or whatever. */
2751 static char *input_filename;
2752 static int input_file_number;
2753 static int input_filename_length;
2754 static int basename_length;
2755 static char *input_basename;
2756 static char *input_suffix;
2758 /* These are variables used within do_spec and do_spec_1. */
2760 /* Nonzero if an arg has been started and not yet terminated
2761 (with space, tab or newline). */
2762 static int arg_going;
2764 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2765 is a temporary file name. */
2766 static int delete_this_arg;
2768 /* Nonzero means %w has been seen; the next arg to be terminated
2769 is the output file name of this compilation. */
2770 static int this_is_output_file;
2772 /* Nonzero means %s has been seen; the next arg to be terminated
2773 is the name of a library file and we should try the standard
2774 search dirs for it. */
2775 static int this_is_library_file;
2777 /* Nonzero means that the input of this command is coming from a pipe. */
2778 static int input_from_pipe;
2780 /* Process the spec SPEC and run the commands specified therein.
2781 Returns 0 if the spec is successfully processed; -1 if failed. */
2791 delete_this_arg = 0;
2792 this_is_output_file = 0;
2793 this_is_library_file = 0;
2794 input_from_pipe = 0;
2796 value = do_spec_1 (spec, 0, NULL_PTR);
2798 /* Force out any unfinished command.
2799 If -pipe, this forces out the last command if it ended in `|'. */
2802 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2805 if (argbuf_index > 0)
2812 /* Process the sub-spec SPEC as a portion of a larger spec.
2813 This is like processing a whole spec except that we do
2814 not initialize at the beginning and we do not supply a
2815 newline by default at the end.
2816 INSWITCH nonzero means don't process %-sequences in SPEC;
2817 in this case, % is treated as an ordinary character.
2818 This is used while substituting switches.
2819 INSWITCH nonzero also causes SPC not to terminate an argument.
2821 Value is zero unless a line was finished
2822 and the command on that line reported an error. */
2825 do_spec_1 (spec, inswitch, soft_matched_part)
2828 char *soft_matched_part;
2830 register char *p = spec;
2837 /* If substituting a switch, treat all chars like letters.
2838 Otherwise, NL, SPC, TAB and % are special. */
2839 switch (inswitch ? 'a' : c)
2842 /* End of line: finish any pending argument,
2843 then run the pending command if one has been started. */
2846 obstack_1grow (&obstack, 0);
2847 string = obstack_finish (&obstack);
2848 if (this_is_library_file)
2849 string = find_file (string);
2850 store_arg (string, delete_this_arg, this_is_output_file);
2851 if (this_is_output_file)
2852 outfiles[input_file_number] = string;
2856 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2858 for (i = 0; i < n_switches; i++)
2859 if (!strcmp (switches[i].part1, "pipe"))
2862 /* A `|' before the newline means use a pipe here,
2863 but only if -pipe was specified.
2864 Otherwise, execute now and don't pass the `|' as an arg. */
2867 input_from_pipe = 1;
2868 switches[i].valid = 1;
2875 if (argbuf_index > 0)
2881 /* Reinitialize for a new command, and for a new argument. */
2884 delete_this_arg = 0;
2885 this_is_output_file = 0;
2886 this_is_library_file = 0;
2887 input_from_pipe = 0;
2891 /* End any pending argument. */
2894 obstack_1grow (&obstack, 0);
2895 string = obstack_finish (&obstack);
2896 if (this_is_library_file)
2897 string = find_file (string);
2898 store_arg (string, delete_this_arg, this_is_output_file);
2899 if (this_is_output_file)
2900 outfiles[input_file_number] = string;
2904 obstack_1grow (&obstack, c);
2910 /* Space or tab ends an argument if one is pending. */
2913 obstack_1grow (&obstack, 0);
2914 string = obstack_finish (&obstack);
2915 if (this_is_library_file)
2916 string = find_file (string);
2917 store_arg (string, delete_this_arg, this_is_output_file);
2918 if (this_is_output_file)
2919 outfiles[input_file_number] = string;
2921 /* Reinitialize for a new argument. */
2923 delete_this_arg = 0;
2924 this_is_output_file = 0;
2925 this_is_library_file = 0;
2932 fatal ("Invalid specification! Bug in cc.");
2935 obstack_grow (&obstack, input_basename, basename_length);
2940 delete_this_arg = 2;
2943 /* Dump out the directories specified with LIBRARY_PATH,
2944 followed by the absolute directories
2945 that we search for startfiles. */
2948 struct prefix_list *pl = startfile_prefixes.plist;
2950 char *buffer = (char *) xmalloc (bufsize);
2953 for (; pl; pl = pl->next)
2955 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2956 /* Used on systems which record the specified -L dirs
2957 and use them to search for dynamic linking. */
2958 /* Relative directories always come from -B,
2959 and it is better not to use them for searching
2960 at run time. In particular, stage1 loses */
2961 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
2964 /* Try subdirectory if there is one. */
2965 if (multilib_dir != NULL)
2969 if (strlen (pl->prefix) + strlen (machine_suffix)
2971 bufsize = (strlen (pl->prefix)
2972 + strlen (machine_suffix)) * 2 + 1;
2973 buffer = (char *) xrealloc (buffer, bufsize);
2974 strcpy (buffer, pl->prefix);
2975 strcat (buffer, machine_suffix);
2976 if (is_directory (buffer, multilib_dir, 1))
2978 do_spec_1 ("-L", 0, NULL_PTR);
2979 #ifdef SPACE_AFTER_L_OPTION
2980 do_spec_1 (" ", 0, NULL_PTR);
2982 do_spec_1 (buffer, 1, NULL_PTR);
2983 do_spec_1 (multilib_dir, 1, NULL_PTR);
2984 /* Make this a separate argument. */
2985 do_spec_1 (" ", 0, NULL_PTR);
2988 if (!pl->require_machine_suffix)
2990 if (is_directory (pl->prefix, multilib_dir, 1))
2992 do_spec_1 ("-L", 0, NULL_PTR);
2993 #ifdef SPACE_AFTER_L_OPTION
2994 do_spec_1 (" ", 0, NULL_PTR);
2996 do_spec_1 (pl->prefix, 1, NULL_PTR);
2997 do_spec_1 (multilib_dir, 1, NULL_PTR);
2998 /* Make this a separate argument. */
2999 do_spec_1 (" ", 0, NULL_PTR);
3005 if (is_directory (pl->prefix, machine_suffix, 1))
3007 do_spec_1 ("-L", 0, NULL_PTR);
3008 #ifdef SPACE_AFTER_L_OPTION
3009 do_spec_1 (" ", 0, NULL_PTR);
3011 do_spec_1 (pl->prefix, 1, NULL_PTR);
3012 /* Remove slash from machine_suffix. */
3013 if (strlen (machine_suffix) >= bufsize)
3014 bufsize = strlen (machine_suffix) * 2 + 1;
3015 buffer = (char *) xrealloc (buffer, bufsize);
3016 strcpy (buffer, machine_suffix);
3017 idx = strlen (buffer);
3018 if (buffer[idx - 1] == '/'
3019 || buffer[idx - 1] == DIR_SEPARATOR)
3020 buffer[idx - 1] = 0;
3021 do_spec_1 (buffer, 1, NULL_PTR);
3022 /* Make this a separate argument. */
3023 do_spec_1 (" ", 0, NULL_PTR);
3026 if (!pl->require_machine_suffix)
3028 if (is_directory (pl->prefix, "", 1))
3030 do_spec_1 ("-L", 0, NULL_PTR);
3031 #ifdef SPACE_AFTER_L_OPTION
3032 do_spec_1 (" ", 0, NULL_PTR);
3034 /* Remove slash from pl->prefix. */
3035 if (strlen (pl->prefix) >= bufsize)
3036 bufsize = strlen (pl->prefix) * 2 + 1;
3037 buffer = (char *) xrealloc (buffer, bufsize);
3038 strcpy (buffer, pl->prefix);
3039 idx = strlen (buffer);
3040 if (buffer[idx - 1] == '/'
3041 || buffer[idx - 1] == DIR_SEPARATOR)
3042 buffer[idx - 1] = 0;
3043 do_spec_1 (buffer, 1, NULL_PTR);
3044 /* Make this a separate argument. */
3045 do_spec_1 (" ", 0, NULL_PTR);
3054 /* {...:%efoo} means report an error with `foo' as error message
3055 and don't execute any more commands for this file. */
3059 while (*p != 0 && *p != '\n') p++;
3060 buf = (char *) alloca (p - q + 1);
3061 strncpy (buf, q, p - q);
3071 if (save_temps_flag)
3073 obstack_grow (&obstack, input_basename, basename_length);
3074 delete_this_arg = 0;
3078 #ifdef MKTEMP_EACH_FILE
3079 /* ??? This has a problem: the total number of
3080 values mktemp can return is limited.
3081 That matters for the names of object files.
3082 In 2.4, do something about that. */
3083 struct temp_name *t;
3085 while (*p == '.' || isalpha (*p)
3086 || (p[0] == '%' && p[1] == 'O'))
3089 /* See if we already have an association of %g/%u/%U and
3091 for (t = temp_names; t; t = t->next)
3092 if (t->length == p - suffix
3093 && strncmp (t->suffix, suffix, p - suffix) == 0
3094 && t->unique == (c != 'g'))
3097 /* Make a new association if needed. %u requires one. */
3098 if (t == 0 || c == 'u')
3102 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3103 t->next = temp_names;
3106 t->length = p - suffix;
3107 t->suffix = save_string (suffix, p - suffix);
3108 t->unique = (c != 'g');
3109 temp_filename = choose_temp_base ();
3110 temp_filename_length = strlen (temp_filename);
3111 t->filename = temp_filename;
3112 t->filename_length = temp_filename_length;
3115 obstack_grow (&obstack, t->filename, t->filename_length);
3116 delete_this_arg = 1;
3118 obstack_grow (&obstack, temp_filename, temp_filename_length);
3119 if (c == 'u' || c == 'U')
3125 sprintf (buff, "%d", unique);
3126 obstack_grow (&obstack, buff, strlen (buff));
3129 delete_this_arg = 1;
3135 obstack_grow (&obstack, input_filename, input_filename_length);
3141 struct prefix_list *pl = include_prefixes.plist;
3143 if (gcc_exec_prefix)
3145 do_spec_1 ("-iprefix", 1, NULL_PTR);
3146 /* Make this a separate argument. */
3147 do_spec_1 (" ", 0, NULL_PTR);
3148 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3149 do_spec_1 (" ", 0, NULL_PTR);
3152 for (; pl; pl = pl->next)
3154 do_spec_1 ("-isystem", 1, NULL_PTR);
3155 /* Make this a separate argument. */
3156 do_spec_1 (" ", 0, NULL_PTR);
3157 do_spec_1 (pl->prefix, 1, NULL_PTR);
3158 do_spec_1 (" ", 0, NULL_PTR);
3164 for (i = 0; i < n_infiles; i++)
3165 store_arg (outfiles[i], 0, 0);
3169 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3174 this_is_library_file = 1;
3178 this_is_output_file = 1;
3183 int cur_index = argbuf_index;
3184 /* Handle the {...} following the %W. */
3187 p = handle_braces (p + 1);
3190 /* If any args were output, mark the last one for deletion
3192 if (argbuf_index != cur_index)
3193 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3197 /* %x{OPTION} records OPTION for %X to output. */
3203 /* Skip past the option value and make a copy. */
3208 string = save_string (p1 + 1, p - p1 - 2);
3210 /* See if we already recorded this option. */
3211 for (i = 0; i < n_linker_options; i++)
3212 if (! strcmp (string, linker_options[i]))
3218 /* This option is new; add it. */
3220 if (!linker_options)
3222 = (char **) xmalloc (n_linker_options * sizeof (char **));
3225 = (char **) xrealloc (linker_options,
3226 n_linker_options * sizeof (char **));
3228 linker_options[n_linker_options - 1] = string;
3232 /* Dump out the options accumulated previously using %x. */
3234 for (i = 0; i < n_linker_options; i++)
3236 do_spec_1 (linker_options[i], 1, NULL_PTR);
3237 /* Make each accumulated option a separate argument. */
3238 do_spec_1 (" ", 0, NULL_PTR);
3242 /* Dump out the options accumulated previously using -Wa,. */
3244 for (i = 0; i < n_assembler_options; i++)
3246 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3247 /* Make each accumulated option a separate argument. */
3248 do_spec_1 (" ", 0, NULL_PTR);
3252 /* Dump out the options accumulated previously using -Wp,. */
3254 for (i = 0; i < n_preprocessor_options; i++)
3256 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3257 /* Make each accumulated option a separate argument. */
3258 do_spec_1 (" ", 0, NULL_PTR);
3262 /* Here are digits and numbers that just process
3263 a certain constant string as a spec. */
3266 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3272 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3278 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3284 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3290 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3296 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3302 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3308 value = do_spec_1 (link_spec, 0, NULL_PTR);
3314 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3320 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3327 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3331 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3335 if (! strncmp (y, "-D", 2))
3336 /* Copy the whole option. */
3337 while (*y && *y != ' ' && *y != '\t')
3339 else if (*y == ' ' || *y == '\t')
3340 /* Copy whitespace to the result. */
3342 /* Don't copy other options. */
3349 value = do_spec_1 (buf, 0, NULL_PTR);
3357 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3361 /* Copy all of CPP_PREDEFINES into BUF,
3362 but put __ after every -D and at the end of each arg. */
3366 if (! strncmp (y, "-D", 2))
3374 || (*(y+1) != '_' && ! isupper (*(y+1))))
3376 /* Stick __ at front of macro name. */
3379 /* Arrange to stick __ at the end as well. */
3383 /* Copy the macro name. */
3384 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3393 /* Copy the value given, if any. */
3394 while (*y && *y != ' ' && *y != '\t')
3397 else if (*y == ' ' || *y == '\t')
3398 /* Copy whitespace to the result. */
3400 /* Don't copy -A options */
3406 /* Copy all of CPP_PREDEFINES into BUF,
3407 but put __ after every -D. */
3411 if (! strncmp (y, "-D", 2))
3416 || (*(y+1) != '_' && ! isupper (*(y+1))))
3418 /* Stick -D__ at front of macro name. */
3424 /* Copy the macro name. */
3425 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3428 /* Copy the value given, if any. */
3429 while (*y && *y != ' ' && *y != '\t')
3434 /* Do not copy this macro - we have just done it before */
3435 while (*y && *y != ' ' && *y != '\t')
3439 else if (*y == ' ' || *y == '\t')
3440 /* Copy whitespace to the result. */
3442 /* Don't copy -A options */
3448 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3452 if (! strncmp (y, "-A", 2))
3453 /* Copy the whole option. */
3454 while (*y && *y != ' ' && *y != '\t')
3456 else if (*y == ' ' || *y == '\t')
3457 /* Copy whitespace to the result. */
3459 /* Don't copy other options. */
3466 value = do_spec_1 (buf, 0, NULL_PTR);
3473 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3478 /* Here we define characters other than letters and digits. */
3481 p = handle_braces (p);
3487 obstack_1grow (&obstack, '%');
3491 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3492 do_spec_1 (" ", 0, NULL_PTR);
3495 /* Process a string found as the value of a spec given by name.
3496 This feature allows individual machine descriptions
3497 to add and use their own specs.
3498 %[...] modifies -D options the way %P does;
3499 %(...) uses the spec unmodified. */
3504 struct spec_list *sl;
3507 /* The string after the S/P is the name of a spec that is to be
3509 while (*p && *p != ')' && *p != ']')
3512 /* See if it's in the list */
3513 for (len = p - name, sl = specs; sl; sl = sl->next)
3514 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3524 value = do_spec_1 (name, 0, NULL_PTR);
3530 char *x = (char *) alloca (strlen (name) * 2 + 1);
3534 /* Copy all of NAME into BUF, but put __ after
3535 every -D and at the end of each arg, */
3538 if (! strncmp (y, "-D", 2))
3546 else if (*y == ' ' || *y == 0)
3560 value = do_spec_1 (buf, 0, NULL_PTR);
3566 /* Discard the closing paren or bracket. */
3574 int c1 = *p++; /* Select first or second version number. */
3575 char *v = compiler_version;
3578 /* The format of the version string is
3579 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3581 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3582 while (! isdigit (*v))
3584 if (v > compiler_version && v[-1] != '-')
3587 /* If desired, advance to second version number. */
3590 /* Set V after the first period. */
3591 while (isdigit (*v))
3598 /* Set Q at the next period or at the end. */
3600 while (isdigit (*q))
3602 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3605 /* Put that part into the command. */
3606 obstack_grow (&obstack, v, q - v);
3612 if (input_from_pipe)
3613 do_spec_1 ("-", 0, NULL_PTR);
3622 /* Backslash: treat next character as ordinary. */
3627 /* Ordinary character: put it into the current argument. */
3628 obstack_1grow (&obstack, c);
3632 return 0; /* End of string */
3635 /* Return 0 if we call do_spec_1 and that returns -1. */
3648 /* A `|' after the open-brace means,
3649 if the test fails, output a single minus sign rather than nothing.
3650 This is used in %{|!pipe:...}. */
3654 /* A `!' after the open-brace negates the condition:
3655 succeed if the specified switch is not present. */
3659 /* A `.' after the open-brace means test against the current suffix. */
3669 while (*p != ':' && *p != '}') p++;
3672 register int count = 1;
3690 int found = (input_suffix != 0
3691 && strlen (input_suffix) == p - filter
3692 && strncmp (input_suffix, filter, p - filter) == 0);
3698 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3703 else if (p[-1] == '*' && p[0] == '}')
3705 /* Substitute all matching switches as separate args. */
3708 for (i = 0; i < n_switches; i++)
3709 if (!strncmp (switches[i].part1, filter, p - filter)
3710 && check_live_switch (i, p - filter))
3715 /* Test for presence of the specified switch. */
3719 /* If name specified ends in *, as in {x*:...},
3720 check for %* and handle that case. */
3721 if (p[-1] == '*' && !negate)
3726 /* First see whether we have %*. */
3730 if (*r == '%' && r[1] == '*')
3734 /* If we do, handle that case. */
3737 /* Substitute all matching switches as separate args.
3738 But do this by substituting for %*
3739 in the text that follows the colon. */
3741 unsigned hard_match_len = p - filter - 1;
3742 char *string = save_string (p + 1, q - p - 2);
3744 for (i = 0; i < n_switches; i++)
3745 if (!strncmp (switches[i].part1, filter, hard_match_len)
3746 && check_live_switch (i, -1))
3748 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3749 /* Pass any arguments this switch has. */
3757 /* If name specified ends in *, as in {x*:...},
3758 check for presence of any switch name starting with x. */
3761 for (i = 0; i < n_switches; i++)
3763 unsigned hard_match_len = p - filter - 1;
3765 if (!strncmp (switches[i].part1, filter, hard_match_len)
3766 && check_live_switch (i, hard_match_len))
3772 /* Otherwise, check for presence of exact name specified. */
3775 for (i = 0; i < n_switches; i++)
3777 if (!strncmp (switches[i].part1, filter, p - filter)
3778 && switches[i].part1[p - filter] == 0
3779 && check_live_switch (i, -1))
3787 /* If it is as desired (present for %{s...}, absent for %{-s...})
3788 then substitute either the switch or the specified
3789 conditional text. */
3790 if (present != negate)
3798 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3804 /* Here if a %{|...} conditional fails: output a minus sign,
3805 which means "standard output" or "standard input". */
3806 do_spec_1 ("-", 0, NULL_PTR);
3813 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3814 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3815 spec, or -1 if either exact match or %* is used.
3817 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3818 whose value does not begin with "no-" is obsoleted by the same value
3819 with the "no-", similarly for a switch with the "no-" prefix. */
3822 check_live_switch (switchnum, prefix_length)
3826 char *name = switches[switchnum].part1;
3829 /* In the common case of {<at-most-one-letter>*}, a negating
3830 switch would always match, so ignore that case. We will just
3831 send the conflicting switches to the compiler phase. */
3832 if (prefix_length >= 0 && prefix_length <= 1)
3835 /* If we already processed this switch and determined if it was
3836 live or not, return our past determination. */
3837 if (switches[switchnum].live_cond != 0)
3838 return switches[switchnum].live_cond > 0;
3840 /* Now search for duplicate in a manner that depends on the name. */
3844 for (i = switchnum + 1; i < n_switches; i++)
3845 if (switches[i].part1[0] == 'O')
3847 switches[switchnum].valid = 1;
3848 switches[switchnum].live_cond = -1;
3853 case 'W': case 'f': case 'm':
3854 if (! strncmp (name + 1, "no-", 3))
3856 /* We have Xno-YYY, search for XYYY. */
3857 for (i = switchnum + 1; i < n_switches; i++)
3858 if (switches[i].part1[0] == name[0]
3859 && ! strcmp (&switches[i].part1[1], &name[4]))
3861 switches[switchnum].valid = 1;
3862 switches[switchnum].live_cond = -1;
3868 /* We have XYYY, search for Xno-YYY. */
3869 for (i = switchnum + 1; i < n_switches; i++)
3870 if (switches[i].part1[0] == name[0]
3871 && switches[i].part1[1] == 'n'
3872 && switches[i].part1[2] == 'o'
3873 && switches[i].part1[3] == '-'
3874 && !strcmp (&switches[i].part1[4], &name[1]))
3876 switches[switchnum].valid = 1;
3877 switches[switchnum].live_cond = -1;
3884 /* Otherwise the switch is live. */
3885 switches[switchnum].live_cond = 1;
3889 /* Pass a switch to the current accumulating command
3890 in the same form that we received it.
3891 SWITCHNUM identifies the switch; it is an index into
3892 the vector of switches gcc received, which is `switches'.
3893 This cannot fail since it never finishes a command line.
3895 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3898 give_switch (switchnum, omit_first_word)
3900 int omit_first_word;
3902 if (!omit_first_word)
3904 do_spec_1 ("-", 0, NULL_PTR);
3905 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3907 do_spec_1 (" ", 0, NULL_PTR);
3908 if (switches[switchnum].args != 0)
3911 for (p = switches[switchnum].args; *p; p++)
3913 do_spec_1 (*p, 1, NULL_PTR);
3914 do_spec_1 (" ", 0, NULL_PTR);
3917 switches[switchnum].valid = 1;
3920 /* Search for a file named NAME trying various prefixes including the
3921 user's -B prefix and some standard ones.
3922 Return the absolute file name found. If nothing is found, return NAME. */
3930 /* Try multilib_dir if it is defined. */
3931 if (multilib_dir != NULL)
3935 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3936 strcpy (try, multilib_dir);
3937 strcat (try, dir_separator_str);
3940 newname = find_a_file (&startfile_prefixes, try, R_OK);
3942 /* If we don't find it in the multi library dir, then fall
3943 through and look for it in the normal places. */
3944 if (newname != NULL)
3948 newname = find_a_file (&startfile_prefixes, name, R_OK);
3949 return newname ? newname : name;
3952 /* Determine whether a directory exists. If LINKER, return 0 for
3953 certain fixed names not needed by the linker. If not LINKER, it is
3954 only important to return 0 if the host machine has a small ARG_MAX
3958 is_directory (path1, path2, linker)
3963 int len1 = strlen (path1);
3964 int len2 = strlen (path2);
3965 char *path = (char *) alloca (3 + len1 + len2);
3969 #ifndef SMALL_ARG_MAX
3974 /* Construct the path from the two parts. Ensure the string ends with "/.".
3975 The resulting path will be a directory even if the given path is a
3977 bcopy (path1, path, len1);
3978 bcopy (path2, path + len1, len2);
3979 cp = path + len1 + len2;
3980 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
3981 *cp++ = DIR_SEPARATOR;
3985 /* Exclude directories that the linker is known to search. */
3988 && strcmp (path, concat (dir_separator_str, "lib",
3989 dir_separator_str, ".", NULL_PTR)) == 0)
3991 && strcmp (path, concat (dir_separator_str, "usr",
3992 dir_separator_str, "lib",
3993 dir_separator_str, ".", NULL_PTR)) == 0)))
3996 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
3999 /* On fatal signals, delete all the temporary files. */
4002 fatal_error (signum)
4005 signal (signum, SIG_DFL);
4006 delete_failure_queue ();
4007 delete_temp_files ();
4008 /* Get the same signal again, this time not handled,
4009 so its normal effect occurs. */
4010 kill (getpid (), signum);
4021 int linker_was_run = 0;
4022 char *explicit_link_files;
4026 p = argv[0] + strlen (argv[0]);
4027 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4030 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4031 signal (SIGINT, fatal_error);
4033 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4034 signal (SIGHUP, fatal_error);
4036 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4037 signal (SIGTERM, fatal_error);
4039 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4040 signal (SIGPIPE, fatal_error);
4044 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4046 obstack_init (&obstack);
4048 /* Build multilib_select, et. al from the separate lines that make up each
4049 multilib selection. */
4051 char **q = multilib_raw;
4054 obstack_init (&multilib_obstack);
4055 while ((p = *q++) != (char *) 0)
4056 obstack_grow (&multilib_obstack, p, strlen (p));
4058 obstack_1grow (&multilib_obstack, 0);
4059 multilib_select = obstack_finish (&multilib_obstack);
4061 q = multilib_matches_raw;
4062 while ((p = *q++) != (char *) 0)
4063 obstack_grow (&multilib_obstack, p, strlen (p));
4065 obstack_1grow (&multilib_obstack, 0);
4066 multilib_matches = obstack_finish (&multilib_obstack);
4070 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4074 obstack_1grow (&multilib_obstack, ' ');
4075 obstack_grow (&multilib_obstack,
4076 multilib_defaults_raw[i],
4077 strlen (multilib_defaults_raw[i]));
4081 obstack_1grow (&multilib_obstack, 0);
4082 multilib_defaults = obstack_finish (&multilib_obstack);
4085 /* Set up to remember the pathname of gcc and any options
4086 needed for collect. We use argv[0] instead of programname because
4087 we need the complete pathname. */
4088 obstack_init (&collect_obstack);
4089 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4090 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4091 putenv (obstack_finish (&collect_obstack));
4093 #ifdef INIT_ENVIRONMENT
4094 /* Set up any other necessary machine specific environment variables. */
4095 putenv (INIT_ENVIRONMENT);
4098 /* Choose directory for temp files. */
4100 temp_filename = choose_temp_base ();
4101 temp_filename_length = strlen (temp_filename);
4103 /* Make a table of what switches there are (switches, n_switches).
4104 Make a table of specified input files (infiles, n_infiles).
4105 Decode switches that are handled locally. */
4107 process_command (argc, argv);
4109 /* Initialize the vector of specs to just the default.
4110 This means one element containing 0s, as a terminator. */
4112 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4113 bcopy ((char *) default_compilers, (char *) compilers,
4114 sizeof default_compilers);
4115 n_compilers = n_default_compilers;
4117 /* Read specs from a file if there is one. */
4119 machine_suffix = concat (spec_machine, dir_separator_str,
4120 spec_version, dir_separator_str, NULL_PTR);
4121 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4123 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4124 /* Read the specs file unless it is a default one. */
4125 if (specs_file != 0 && strcmp (specs_file, "specs"))
4126 read_specs (specs_file);
4132 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4133 set_spec (extra_specs[k].name, extra_specs[k].spec);
4137 /* If not cross-compiling, look for startfiles in the standard places. */
4138 /* The fact that these are done here, after reading the specs file,
4139 means that it cannot be found in these directories.
4140 But that's okay. It should never be there anyway. */
4143 #ifdef MD_EXEC_PREFIX
4144 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4145 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4148 #ifdef MD_STARTFILE_PREFIX
4149 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4152 #ifdef MD_STARTFILE_PREFIX_1
4153 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4156 /* If standard_startfile_prefix is relative, base it on
4157 standard_exec_prefix. This lets us move the installed tree
4158 as a unit. If GCC_EXEC_PREFIX is defined, base
4159 standard_startfile_prefix on that as well. */
4160 if (*standard_startfile_prefix == '/'
4161 || *standard_startfile_prefix == DIR_SEPARATOR)
4162 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4166 if (gcc_exec_prefix)
4167 add_prefix (&startfile_prefixes,
4168 concat (gcc_exec_prefix, machine_suffix,
4169 standard_startfile_prefix, NULL_PTR),
4171 add_prefix (&startfile_prefixes,
4172 concat (standard_exec_prefix,
4174 standard_startfile_prefix, NULL_PTR),
4178 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4180 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4182 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4183 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4188 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4189 add_prefix (&startfile_prefixes,
4190 concat (gcc_exec_prefix, machine_suffix,
4191 standard_startfile_prefix, NULL_PTR),
4195 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4196 if (gcc_exec_prefix)
4198 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4199 + strlen (spec_version)
4200 + strlen (spec_machine) + 3);
4201 strcpy (temp, gcc_exec_prefix);
4202 strcat (temp, spec_machine);
4203 strcat (temp, dir_separator_str);
4204 strcat (temp, spec_version);
4205 strcat (temp, dir_separator_str);
4206 gcc_exec_prefix = temp;
4209 /* Now we have the specs.
4210 Set the `valid' bits for switches that match anything in any spec. */
4212 validate_all_switches ();
4214 /* Now that we have the switches and the specs, set
4215 the subdirectory based on the options. */
4216 set_multilib_dir ();
4218 /* Warn about any switches that no pass was interested in. */
4220 for (i = 0; i < n_switches; i++)
4221 if (! switches[i].valid)
4222 error ("unrecognized option `-%s'", switches[i].part1);
4224 /* Obey some of the options. */
4226 if (print_search_dirs)
4228 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4229 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4230 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4234 if (print_file_name)
4236 printf ("%s\n", find_file (print_file_name));
4240 if (print_prog_name)
4242 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4243 printf ("%s\n", (newname ? newname : print_prog_name));
4247 if (print_multi_lib)
4249 print_multilib_info ();
4253 if (print_multi_directory)
4255 if (multilib_dir == NULL)
4258 printf ("%s\n", multilib_dir);
4264 if (! strcmp (version_string, compiler_version))
4265 fprintf (stderr, "gcc version %s\n", version_string);
4267 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4268 version_string, compiler_version);
4275 fatal ("No input files");
4277 /* Make a place to record the compiler output file names
4278 that correspond to the input files. */
4280 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4281 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4283 /* Record which files were specified explicitly as link input. */
4285 explicit_link_files = xmalloc (n_infiles);
4286 bzero (explicit_link_files, n_infiles);
4288 for (i = 0; i < n_infiles; i++)
4290 register struct compiler *cp = 0;
4291 int this_file_error = 0;
4293 /* Tell do_spec what to substitute for %i. */
4295 input_filename = infiles[i].name;
4296 input_filename_length = strlen (input_filename);
4297 input_file_number = i;
4299 /* Use the same thing in %o, unless cp->spec says otherwise. */
4301 outfiles[i] = input_filename;
4303 /* Figure out which compiler from the file's suffix. */
4305 cp = lookup_compiler (infiles[i].name, input_filename_length,
4306 infiles[i].language);
4310 /* Ok, we found an applicable compiler. Run its spec. */
4311 /* First say how much of input_filename to substitute for %b */
4315 if (cp->spec[0][0] == '#')
4316 error ("%s: %s compiler not installed on this system",
4317 input_filename, &cp->spec[0][1]);
4319 input_basename = input_filename;
4320 for (p = input_filename; *p; p++)
4321 if (*p == '/' || *p == DIR_SEPARATOR)
4322 input_basename = p + 1;
4324 /* Find a suffix starting with the last period,
4325 and set basename_length to exclude that suffix. */
4326 basename_length = strlen (input_basename);
4327 p = input_basename + basename_length;
4328 while (p != input_basename && *p != '.') --p;
4329 if (*p == '.' && p != input_basename)
4331 basename_length = p - input_basename;
4332 input_suffix = p + 1;
4338 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4340 len += strlen (cp->spec[j]);
4342 p = (char *) xmalloc (len + 1);
4345 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4348 strcpy (p + len, cp->spec[j]);
4349 len += strlen (cp->spec[j]);
4352 value = do_spec (p);
4355 this_file_error = 1;
4358 /* If this file's name does not contain a recognized suffix,
4359 record it as explicit linker input. */
4362 explicit_link_files[i] = 1;
4364 /* Clear the delete-on-failure queue, deleting the files in it
4365 if this compilation failed. */
4367 if (this_file_error)
4369 delete_failure_queue ();
4372 /* If this compilation succeeded, don't delete those files later. */
4373 clear_failure_queue ();
4376 /* Run ld to link all the compiler output files. */
4378 if (error_count == 0)
4380 int tmp = execution_count;
4384 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4386 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4387 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4389 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4391 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4392 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4395 for (i = 0; i < n_switches; i++)
4399 obstack_grow (&collect_obstack, " ", 1);
4402 obstack_grow (&collect_obstack, "-", 1);
4403 obstack_grow (&collect_obstack, switches[i].part1,
4404 strlen (switches[i].part1));
4406 for (args = switches[i].args; args && *args; args++)
4408 obstack_grow (&collect_obstack, " ", 1);
4409 obstack_grow (&collect_obstack, *args, strlen (*args));
4412 obstack_grow (&collect_obstack, "\0", 1);
4413 putenv (obstack_finish (&collect_obstack));
4415 value = do_spec (link_command_spec);
4418 linker_was_run = (tmp != execution_count);
4421 /* Warn if a -B option was specified but the prefix was never used. */
4422 unused_prefix_warnings (&exec_prefixes);
4423 unused_prefix_warnings (&startfile_prefixes);
4425 /* If options said don't run linker,
4426 complain about input files to be given to the linker. */
4428 if (! linker_was_run && error_count == 0)
4429 for (i = 0; i < n_infiles; i++)
4430 if (explicit_link_files[i])
4431 error ("%s: linker input file unused since linking not done",
4434 /* Delete some or all of the temporary files we made. */
4437 delete_failure_queue ();
4438 delete_temp_files ();
4440 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4445 /* Find the proper compilation spec for the file name NAME,
4446 whose length is LENGTH. LANGUAGE is the specified language,
4447 or 0 if none specified. */
4449 static struct compiler *
4450 lookup_compiler (name, length, language)
4455 struct compiler *cp;
4457 /* Look for the language, if one is spec'd. */
4460 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4464 if (cp->suffix[0] == '@'
4465 && !strcmp (cp->suffix + 1, language))
4469 error ("language %s not recognized", language);
4472 /* Look for a suffix. */
4473 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4475 if (/* The suffix `-' matches only the file name `-'. */
4476 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4478 (strlen (cp->suffix) < length
4479 /* See if the suffix matches the end of NAME. */
4481 && (!strcmp (cp->suffix,
4482 name + length - strlen (cp->suffix))
4483 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4484 && !strcasecmp (cp->suffix,
4485 name + length - strlen (cp->suffix)))))
4487 && !strcmp (cp->suffix,
4488 name + length - strlen (cp->suffix))))
4491 if (cp->spec[0][0] == '@')
4493 struct compiler *new;
4494 /* An alias entry maps a suffix to a language.
4495 Search for the language; pass 0 for NAME and LENGTH
4496 to avoid infinite recursion if language not found.
4497 Construct the new compiler spec. */
4498 language = cp->spec[0] + 1;
4499 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4500 new->suffix = cp->suffix;
4501 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4502 (char *) new->spec, sizeof new->spec);
4505 /* A non-alias entry: return it. */
4517 register char *value = (char *) malloc (size);
4519 fatal ("virtual memory exhausted");
4524 xrealloc (ptr, size)
4528 register char *value = (char *) realloc (ptr, size);
4530 fatal ("virtual memory exhausted");
4534 /* This function is based on the one in libiberty. */
4537 concat VPROTO((char *first, ...))
4539 register int length;
4540 register char *newstr;
4548 /* First compute the size of the result and get sufficient memory. */
4550 VA_START (args, first);
4552 first = va_arg (args, char *);
4560 length += strlen (arg);
4561 arg = va_arg (args, char *);
4564 newstr = (char *) xmalloc (length + 1);
4567 /* Now copy the individual pieces to the result string. */
4569 VA_START (args, first);
4571 first = va_arg (args, char *);
4580 arg = va_arg (args, char *);
4589 save_string (s, len)
4593 register char *result = xmalloc (len + 1);
4595 bcopy (s, result, len);
4601 pfatal_with_name (name)
4604 fatal ("%s: %s", name, my_strerror (errno));
4608 perror_with_name (name)
4611 error ("%s: %s", name, my_strerror (errno));
4615 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4621 /* Space for trailing '\0' is in %s. */
4622 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4623 sprintf (msg, errmsg_fmt, errmsg_arg);
4627 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4630 /* More 'friendly' abort that prints the line and file.
4631 config.h can #define abort fancy_abort if you like that sort of thing. */
4636 fatal ("Internal gcc abort.");
4641 /* Output an error message and exit */
4644 fatal VPROTO((char *format, ...))
4651 VA_START (ap, format);
4654 format = va_arg (ap, char *);
4657 fprintf (stderr, "%s: ", programname);
4658 vfprintf (stderr, format, ap);
4660 fprintf (stderr, "\n");
4661 delete_temp_files ();
4666 error VPROTO((char *format, ...))
4673 VA_START (ap, format);
4676 format = va_arg (ap, char *);
4679 fprintf (stderr, "%s: ", programname);
4680 vfprintf (stderr, format, ap);
4683 fprintf (stderr, "\n");
4686 #else /* not HAVE_VPRINTF */
4689 fatal (msg, arg1, arg2)
4690 char *msg, *arg1, *arg2;
4692 error (msg, arg1, arg2);
4693 delete_temp_files ();
4698 error (msg, arg1, arg2)
4699 char *msg, *arg1, *arg2;
4701 fprintf (stderr, "%s: ", programname);
4702 fprintf (stderr, msg, arg1, arg2);
4703 fprintf (stderr, "\n");
4706 #endif /* not HAVE_VPRINTF */
4710 validate_all_switches ()
4712 struct compiler *comp;
4715 struct spec_list *spec;
4717 for (comp = compilers; comp->spec[0]; comp++)
4720 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4724 if (c == '%' && *p == '{')
4725 /* We have a switch spec. */
4726 validate_switches (p + 1);
4730 /* look through the linked list of extra specs read from the specs file */
4731 for (spec = specs; spec ; spec = spec->next)
4735 if (c == '%' && *p == '{')
4736 /* We have a switch spec. */
4737 validate_switches (p + 1);
4740 p = link_command_spec;
4742 if (c == '%' && *p == '{')
4743 /* We have a switch spec. */
4744 validate_switches (p + 1);
4746 /* Now notice switches mentioned in the machine-specific specs. */
4750 if (c == '%' && *p == '{')
4751 /* We have a switch spec. */
4752 validate_switches (p + 1);
4756 if (c == '%' && *p == '{')
4757 /* We have a switch spec. */
4758 validate_switches (p + 1);
4762 if (c == '%' && *p == '{')
4763 /* We have a switch spec. */
4764 validate_switches (p + 1);
4766 p = signed_char_spec;
4768 if (c == '%' && *p == '{')
4769 /* We have a switch spec. */
4770 validate_switches (p + 1);
4774 if (c == '%' && *p == '{')
4775 /* We have a switch spec. */
4776 validate_switches (p + 1);
4780 if (c == '%' && *p == '{')
4781 /* We have a switch spec. */
4782 validate_switches (p + 1);
4786 if (c == '%' && *p == '{')
4787 /* We have a switch spec. */
4788 validate_switches (p + 1);
4792 if (c == '%' && *p == '{')
4793 /* We have a switch spec. */
4794 validate_switches (p + 1);
4798 if (c == '%' && *p == '{')
4799 /* We have a switch spec. */
4800 validate_switches (p + 1);
4804 if (c == '%' && *p == '{')
4805 /* We have a switch spec. */
4806 validate_switches (p + 1);
4811 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4813 p = extra_specs[i].spec;
4815 if (c == '%' && *p == '{')
4816 /* We have a switch spec. */
4817 validate_switches (p + 1);
4824 /* Look at the switch-name that comes after START
4825 and mark as valid all supplied switches that match it. */
4828 validate_switches (start)
4831 register char *p = start;
4846 while (*p != ':' && *p != '}') p++;
4850 else if (p[-1] == '*')
4852 /* Mark all matching switches as valid. */
4854 for (i = 0; i < n_switches; i++)
4855 if (!strncmp (switches[i].part1, filter, p - filter))
4856 switches[i].valid = 1;
4860 /* Mark an exact matching switch as valid. */
4861 for (i = 0; i < n_switches; i++)
4863 if (!strncmp (switches[i].part1, filter, p - filter)
4864 && switches[i].part1[p - filter] == 0)
4865 switches[i].valid = 1;
4870 /* Check whether a particular argument was used. The first time we
4871 canonialize the switches to keep only the ones we care about. */
4885 static struct mswitchstr *mswitches;
4886 static int n_mswitches;
4891 struct mswitchstr *matches;
4893 int cnt = (*multilib_matches != '\0');
4895 /* Break multilib_matches into the component strings of string and replacement
4897 for (p = multilib_matches; *p != '\0'; p++)
4901 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
4903 q = multilib_matches;
4914 matches[i].len = q - matches[i].str;
4916 matches[i].replace = ++q;
4917 while (*q != ';' && *q != '\0')
4923 matches[i].rep_len = q - matches[i].replace;
4931 /* Now build a list of the replacement string for switches that we care about */
4932 mswitches = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr)) * n_switches);
4933 for (i = 0; i < n_switches; i++)
4935 int xlen = strlen (switches[i].part1);
4936 for (j = 0; j < cnt; j++)
4937 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
4939 mswitches[n_mswitches].str = matches[j].replace;
4940 mswitches[n_mswitches].len = matches[j].rep_len;
4941 mswitches[n_mswitches].replace = (char *)0;
4942 mswitches[n_mswitches].rep_len = 0;
4949 for (i = 0; i < n_mswitches; i++)
4950 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
4957 default_arg (p, len)
4964 for (start = multilib_defaults; *start != '\0'; start = end+1)
4966 while (*start == ' ' || *start == '\t')
4972 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
4975 if ((end - start) == len && strncmp (p, start, len) == 0)
4982 /* Work out the subdirectory to use based on the
4983 options. The format of multilib_select is a list of elements.
4984 Each element is a subdirectory name followed by a list of options
4985 followed by a semicolon. gcc will consider each line in turn. If
4986 none of the options beginning with an exclamation point are
4987 present, and all of the other options are present, that
4988 subdirectory will be used. */
4993 char *p = multilib_select;
4995 char *this_path, *this_arg;
5001 /* Ignore newlines. */
5008 /* Get the initial path. */
5016 this_path_len = p - this_path;
5018 /* Check the arguments. */
5033 while (*p != ' ' && *p != ';')
5040 if (*this_arg != '!')
5048 /* If this is a default argument, we can just ignore it.
5049 This is true even if this_arg begins with '!'. Beginning
5050 with '!' does not mean that this argument is necessarily
5051 inappropriate for this library: it merely means that
5052 there is a more specific library which uses this
5053 argument. If this argument is a default, we need not
5054 consider that more specific library. */
5055 if (! default_arg (this_arg, p - this_arg))
5057 ok = used_arg (this_arg, p - this_arg);
5068 if (this_path_len != 1
5069 || this_path[0] != '.')
5071 multilib_dir = xmalloc (this_path_len + 1);
5072 strncpy (multilib_dir, this_path, this_path_len);
5073 multilib_dir[this_path_len] = '\0';
5082 /* Print out the multiple library subdirectory selection
5083 information. This prints out a series of lines. Each line looks
5084 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5085 required. Only the desired options are printed out, the negative
5086 matches. The options are print without a leading dash. There are
5087 no spaces to make it easy to use the information in the shell.
5088 Each subdirectory is printed only once. This assumes the ordering
5089 generated by the genmultilib script. */
5092 print_multilib_info ()
5094 char *p = multilib_select;
5095 char *last_path = 0, *this_path;
5097 int last_path_len = 0;
5101 /* Ignore newlines. */
5108 /* Get the initial path. */
5117 /* If this is a duplicate, skip it. */
5118 skip = (last_path != 0 && p - this_path == last_path_len
5119 && ! strncmp (last_path, this_path, last_path_len));
5121 last_path = this_path;
5122 last_path_len = p - this_path;
5124 /* If this directory requires any default arguments, we can skip
5125 it. We will already have printed a directory identical to
5126 this one which does not require that default argument. */
5144 while (*q != ' ' && *q != ';')
5152 && default_arg (arg, q - arg))
5167 for (p1 = last_path; p1 < p; p1++)
5186 use_arg = *p != '!';
5191 while (*p != ' ' && *p != ';')
5206 /* If there are extra options, print them now */
5207 if (multilib_extra && *multilib_extra)
5209 int print_at = TRUE;
5212 for (q = multilib_extra; *q != '\0'; q++)