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 #ifdef EXECUTABLE_SUFFIX
105 #define HAVE_EXECUTABLE_SUFFIX
107 #define EXECUTABLE_SUFFIX ""
110 /* By default, the suffix for object files is ".o". */
112 #define HAVE_OBJECT_SUFFIX
114 #define OBJECT_SUFFIX ".o"
117 /* By default, colon separates directories in a path. */
118 #ifndef PATH_SEPARATOR
119 #define PATH_SEPARATOR ':'
122 #ifndef DIR_SEPARATOR
123 #define DIR_SEPARATOR '/'
126 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
128 #define obstack_chunk_alloc xmalloc
129 #define obstack_chunk_free free
132 extern char *getenv ();
134 extern char *choose_temp_base PROTO((void));
140 #ifndef HAVE_STRERROR
143 extern const char *const sys_errlist[];
145 extern char *sys_errlist[];
148 extern char *strerror();
151 /* If a stage of compilation returns an exit status >= 1,
152 compilation of that file ceases. */
154 #define MIN_FATAL_STATUS 1
156 /* Flag saying to print the directories gcc will search through looking for
157 programs, libraries, etc. */
159 static int print_search_dirs;
161 /* Flag saying to print the full filename of this file
162 as found through our usual search mechanism. */
164 static char *print_file_name = NULL;
166 /* As print_file_name, but search for executable file. */
168 static char *print_prog_name = NULL;
170 /* Flag saying to print the relative path we'd use to
171 find libgcc.a given the current compiler flags. */
173 static int print_multi_directory;
175 /* Flag saying to print the list of subdirectories and
176 compiler flags used to select them in a standard form. */
178 static int print_multi_lib;
180 /* Flag indicating whether we should print the command and arguments */
182 static int verbose_flag;
184 /* Nonzero means write "temp" files in source directory
185 and use the source file's name in them, and don't delete them. */
187 static int save_temps_flag;
189 /* The compiler version. */
191 static char *compiler_version;
193 /* The target version specified with -V */
195 static char *spec_version = DEFAULT_TARGET_VERSION;
197 /* The target machine specified with -b. */
199 static char *spec_machine = DEFAULT_TARGET_MACHINE;
201 /* Nonzero if cross-compiling.
202 When -b is used, the value comes from the `specs' file. */
205 static int cross_compile = 1;
207 static int cross_compile = 0;
210 /* The number of errors that have occurred; the link phase will not be
211 run if this is non-zero. */
212 static int error_count = 0;
214 /* This is the obstack which we use to allocate many strings. */
216 static struct obstack obstack;
218 /* This is the obstack to build an environment variable to pass to
219 collect2 that describes all of the relevant switches of what to
220 pass the compiler in building the list of pointers to constructors
223 static struct obstack collect_obstack;
225 extern char *version_string;
227 /* Forward declaration for prototypes. */
230 static void set_spec PROTO((char *, char *));
231 static struct compiler *lookup_compiler PROTO((char *, int, char *));
232 static char *build_search_list PROTO((struct path_prefix *, char *, int));
233 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
234 static char *find_a_file PROTO((struct path_prefix *, char *, int));
235 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
236 static char *skip_whitespace PROTO((char *));
237 static void record_temp_file PROTO((char *, int, int));
238 static void delete_if_ordinary PROTO((char *));
239 static void delete_temp_files PROTO((void));
240 static void delete_failure_queue PROTO((void));
241 static void clear_failure_queue PROTO((void));
242 static int check_live_switch PROTO((int, int));
243 static char *handle_braces PROTO((char *));
244 static char *save_string PROTO((char *, int));
245 static char *concat PVPROTO((char *, ...));
246 static int do_spec PROTO((char *));
247 static int do_spec_1 PROTO((char *, int, char *));
248 static char *find_file PROTO((char *));
249 static int is_directory PROTO((char *, char *, int));
250 static void validate_switches PROTO((char *));
251 static void validate_all_switches PROTO((void));
252 static void give_switch PROTO((int, int));
253 static int used_arg PROTO((char *, int));
254 static int default_arg PROTO((char *, int));
255 static void set_multilib_dir PROTO((void));
256 static void print_multilib_info PROTO((void));
257 static void pfatal_with_name PROTO((char *));
258 static void perror_with_name PROTO((char *));
259 static void pfatal_pexecute PROTO((char *, char *));
261 static void fatal PVPROTO((char *, ...));
262 static void error PVPROTO((char *, ...));
264 /* We must not provide any prototype here, even if ANSI C. */
265 static void fatal PROTO(());
266 static void error PROTO(());
273 /* Specs are strings containing lines, each of which (if not blank)
274 is made up of a program name, and arguments separated by spaces.
275 The program name must be exact and start from root, since no path
276 is searched and it is unreliable to depend on the current working directory.
277 Redirection of input or output is not supported; the subprograms must
278 accept filenames saying what files to read and write.
280 In addition, the specs can contain %-sequences to substitute variable text
281 or for conditional text. Here is a table of all defined %-sequences.
282 Note that spaces are not generated automatically around the results of
283 expanding these sequences; therefore, you can concatenate them together
284 or with constant text in a single argument.
286 %% substitute one % into the program name or argument.
287 %i substitute the name of the input file being processed.
288 %b substitute the basename of the input file being processed.
289 This is the substring up to (and not including) the last period
290 and not including the directory.
291 %g substitute the temporary-file-name-base. This is a string chosen
292 once per compilation. Different temporary file names are made by
293 concatenation of constant strings on the end, as in `%g.s'.
294 %g also has the same effect of %d.
295 %u like %g, but make the temporary file name unique.
296 %U returns the last file name generated with %u.
297 %d marks the argument containing or following the %d as a
298 temporary file name, so that that file will be deleted if CC exits
299 successfully. Unlike %g, this contributes no text to the argument.
300 %w marks the argument containing or following the %w as the
301 "output file" of this compilation. This puts the argument
302 into the sequence of arguments that %o will substitute later.
304 like %{...} but mark last argument supplied within
305 as a file to be deleted on failure.
306 %o substitutes the names of all the output files, with spaces
307 automatically placed around them. You should write spaces
308 around the %o as well or the results are undefined.
309 %o is for use in the specs for running the linker.
310 Input files whose names have no recognized suffix are not compiled
311 at all, but they are included among the output files, so they will
313 %O substitutes the suffix for object files.
314 %p substitutes the standard macro predefinitions for the
315 current target machine. Use this when running cpp.
316 %P like %p, but puts `__' before and after the name of each macro.
317 (Except macros that already have __.)
319 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
320 %s current argument is the name of a library or startup file of some sort.
321 Search for that file in a standard list of directories
322 and substitute the full name found.
323 %eSTR Print STR as an error message. STR is terminated by a newline.
324 Use this when inconsistent options are detected.
325 %x{OPTION} Accumulate an option for %X.
326 %X Output the accumulated linker options specified by compilations.
327 %Y Output the accumulated assembler options specified by compilations.
328 %Z Output the accumulated preprocessor options specified by compilations.
329 %v1 Substitute the major version number of GCC.
330 (For version 2.5.n, this is 2.)
331 %v2 Substitute the minor version number of GCC.
332 (For version 2.5.n, this is 5.)
333 %a process ASM_SPEC as a spec.
334 This allows config.h to specify part of the spec for running as.
335 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
336 used here. This can be used to run a post-processor after the
337 assembler has done it's job.
338 %D Dump out a -L option for each directory in startfile_prefixes.
339 If multilib_dir is set, extra entries are generated with it affixed.
340 %l process LINK_SPEC as a spec.
341 %L process LIB_SPEC as a spec.
342 %G process LIBGCC_SPEC as a spec.
343 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
344 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
345 %c process SIGNED_CHAR_SPEC as a spec.
346 %C process CPP_SPEC as a spec. A capital C is actually used here.
347 %1 process CC1_SPEC as a spec.
348 %2 process CC1PLUS_SPEC as a spec.
349 %| output "-" if the input for the current command is coming from a pipe.
350 %* substitute the variable part of a matched option. (See below.)
351 Note that each comma in the substituted string is replaced by
353 %{S} substitutes the -S switch, if that switch was given to CC.
354 If that switch was not specified, this substitutes nothing.
355 Here S is a metasyntactic variable.
356 %{S*} substitutes all the switches specified to CC whose names start
357 with -S. This is used for -o, -D, -I, etc; switches that take
358 arguments. CC considers `-o foo' as being one switch whose
359 name starts with `o'. %{o*} would substitute this text,
360 including the space; thus, two arguments would be generated.
361 %{S*:X} substitutes X if one or more switches whose names start with -S are
362 specified to CC. Note that the tail part of the -S option
363 (i.e. the part matched by the `*') will be substituted for each
364 occurrence of %* within X.
365 %{S:X} substitutes X, but only if the -S switch was given to CC.
366 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
367 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
368 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
369 %{.S:X} substitutes X, but only if processing a file with suffix S.
370 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
371 %(Spec) processes a specification defined in a specs file as *Spec:
372 %[Spec] as above, but put __ around -D arguments
374 The conditional text X in a %{S:X} or %{!S:X} construct may contain
375 other nested % constructs or spaces, or even newlines. They are
376 processed as usual, as described above.
378 The -O, -f, -m, and -W switches are handled specifically in these
379 constructs. If another value of -O or the negated form of a -f, -m, or
380 -W switch is found later in the command line, the earlier switch
381 value is ignored, except with {S*} where S is just one letter; this
382 passes all matching options.
384 The character | is used to indicate that a command should be piped to
385 the following command, but only if -pipe is specified.
387 Note that it is built into CC which switches take arguments and which
388 do not. You might think it would be useful to generalize this to
389 allow each compiler's spec to say which switches take arguments. But
390 this cannot be done in a consistent fashion. CC cannot even decide
391 which input files have been specified without knowing which switches
392 take arguments, and it must know which input files to compile in order
393 to tell which compilers to run.
395 CC also knows implicitly that arguments starting in `-l' are to be
396 treated as compiler output files, and passed to the linker in their
397 proper position among the other output files. */
399 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
401 /* config.h can define ASM_SPEC to provide extra args to the assembler
402 or extra switch-translations. */
407 /* config.h can define ASM_FINAL_SPEC to run a post processor after
408 the assembler has run. */
409 #ifndef ASM_FINAL_SPEC
410 #define ASM_FINAL_SPEC ""
413 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
414 or extra switch-translations. */
419 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
420 or extra switch-translations. */
425 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
426 or extra switch-translations. */
428 #define CC1PLUS_SPEC ""
431 /* config.h can define LINK_SPEC to provide extra args to the linker
432 or extra switch-translations. */
437 /* config.h can define LIB_SPEC to override the default libraries. */
439 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
442 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
445 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
446 /* Have gcc do the search for libgcc.a. */
447 #define LIBGCC_SPEC "libgcc.a%s"
449 #define LIBGCC_SPEC "-lgcc"
453 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
454 #ifndef STARTFILE_SPEC
455 #define STARTFILE_SPEC \
456 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
459 /* config.h can define SWITCHES_NEED_SPACES to control which options
460 require spaces between the option and the argument. */
461 #ifndef SWITCHES_NEED_SPACES
462 #define SWITCHES_NEED_SPACES ""
465 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
467 #define ENDFILE_SPEC ""
470 /* This spec is used for telling cpp whether char is signed or not. */
471 #ifndef SIGNED_CHAR_SPEC
472 /* Use #if rather than ?:
473 because MIPS C compiler rejects like ?: in initializers. */
474 #if DEFAULT_SIGNED_CHAR
475 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
477 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
481 static char *cpp_spec = CPP_SPEC;
482 static char *cpp_predefines = CPP_PREDEFINES;
483 static char *cc1_spec = CC1_SPEC;
484 static char *cc1plus_spec = CC1PLUS_SPEC;
485 static char *signed_char_spec = SIGNED_CHAR_SPEC;
486 static char *asm_spec = ASM_SPEC;
487 static char *asm_final_spec = ASM_FINAL_SPEC;
488 static char *link_spec = LINK_SPEC;
489 static char *lib_spec = LIB_SPEC;
490 static char *libgcc_spec = LIBGCC_SPEC;
491 static char *endfile_spec = ENDFILE_SPEC;
492 static char *startfile_spec = STARTFILE_SPEC;
493 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
495 /* Some compilers have limits on line lengths, and the multilib_select
496 and/or multilib_matches strings can be very long, so we build them at
498 static struct obstack multilib_obstack;
499 static char *multilib_select;
500 static char *multilib_matches;
501 static char *multilib_defaults;
502 #include "multilib.h"
504 /* Check whether a particular argument is a default argument. */
506 #ifndef MULTILIB_DEFAULTS
507 #define MULTILIB_DEFAULTS { "" }
510 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
513 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
516 /* This defines which switch letters take arguments. */
518 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
519 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
520 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
521 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
522 || (CHAR) == 'L' || (CHAR) == 'A')
524 #ifndef SWITCH_TAKES_ARG
525 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
528 /* This defines which multi-letter switches take arguments. */
530 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
531 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
532 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
533 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
534 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
535 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
536 || !strcmp (STR, "isystem"))
538 #ifndef WORD_SWITCH_TAKES_ARG
539 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
542 /* Record the mapping from file suffixes for compilation specs. */
546 char *suffix; /* Use this compiler for input files
547 whose names end in this suffix. */
549 char *spec[4]; /* To use this compiler, concatenate these
550 specs and pass to do_spec. */
553 /* Pointer to a vector of `struct compiler' that gives the spec for
554 compiling a file, based on its suffix.
555 A file that does not end in any of these suffixes will be passed
556 unchanged to the loader and nothing else will be done to it.
558 An entry containing two 0s is used to terminate the vector.
560 If multiple entries match a file, the last matching one is used. */
562 static struct compiler *compilers;
564 /* Number of entries in `compilers', not counting the null terminator. */
566 static int n_compilers;
568 /* The default list of file name suffixes and their compilation specs. */
570 static struct compiler default_compilers[] =
572 /* Add lists of suffixes of known languages here. If those languages
573 were no present when we built the driver, we will hit these copies
574 and given a more meaningful error than "file not used since
575 linking is not done". */
576 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
577 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
578 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
579 {".fpp", "#Fortran"},
580 /* Next come the entries for C. */
583 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
584 %{C:%{!E:%eGNU C does not support -C without using -E}}\
585 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
586 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
587 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
588 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
589 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
590 %{traditional-cpp:-traditional}\
591 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
592 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
593 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
594 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
595 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
596 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
598 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
599 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
601 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
602 %{!pipe:%g.s} %A\n }}}}"},
604 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
605 %{C:%{!E:%eGNU C does not support -C without using -E}}\
606 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
607 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
608 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
609 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
610 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
611 %{traditional-cpp:-traditional}\
612 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
614 %{!E:%e-E required when input is from standard input}"},
615 {".m", "@objective-c"},
617 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
618 %{C:%{!E:%eGNU C does not support -C without using -E}}\
619 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
620 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
621 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
622 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
623 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
624 %{traditional-cpp:-traditional}\
625 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
627 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
628 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
629 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
630 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
631 -lang-objc %{gen-decls} \
633 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
634 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
636 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
637 %{!pipe:%g.s} %A\n }}}}"},
640 "%{!E:%eCompilation of header file requested} \
641 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
642 %{C:%{!E:%eGNU C does not support -C without using -E}}\
643 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
644 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
645 %{ansi:-trigraphs -$ -D__STRICT_ANSI__}\
646 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
647 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
648 %{traditional-cpp:-traditional}\
649 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
651 {".i", "@cpp-output"},
653 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
654 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
655 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
660 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
661 %{!pipe:%g.s} %A\n }}}}"},
662 {".s", "@assembler"},
664 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
665 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
667 {".S", "@assembler-with-cpp"},
668 {"@assembler-with-cpp",
669 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
670 %{C:%{!E:%eGNU C does not support -C without using -E}}\
671 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
672 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
673 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
674 %{traditional-cpp:-traditional}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
676 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
677 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
678 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 %{!pipe:%g.s} %A\n }}}}"},
681 /* Mark end of table */
685 /* Number of elements in default_compilers, not counting the terminator. */
687 static int n_default_compilers
688 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
690 /* Here is the spec for running the linker, after compiling all files. */
692 /* -u* was put back because both BSD and SysV seem to support it. */
693 /* %{static:} simply prevents an error message if the target machine
694 doesn't handle -static. */
695 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
696 scripts which exist in user specified directories, or in standard
698 #ifdef LINK_LIBGCC_SPECIAL
699 /* Don't generate -L options. */
700 static char *link_command_spec = "\
702 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
703 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
704 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
705 %{static:} %{L*} %{T*} %o\
706 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
707 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
710 static char *link_command_spec = "\
712 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
713 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
714 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
715 %{static:} %{L*} %D %{T*} %o\
716 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
717 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\n }}}}}}";
720 /* A vector of options to give to the linker.
721 These options are accumulated by %x,
722 and substituted into the linker command with %X. */
723 static int n_linker_options;
724 static char **linker_options;
726 /* A vector of options to give to the assembler.
727 These options are accumulated by -Wa,
728 and substituted into the assembler command with %Y. */
729 static int n_assembler_options;
730 static char **assembler_options;
732 /* A vector of options to give to the preprocessor.
733 These options are accumulated by -Wp,
734 and substituted into the preprocessor command with %Z. */
735 static int n_preprocessor_options;
736 static char **preprocessor_options;
738 /* Define how to map long options into short ones. */
740 /* This structure describes one mapping. */
743 /* The long option's name. */
745 /* The equivalent short option. */
747 /* Argument info. A string of flag chars; NULL equals no options.
748 a => argument required.
749 o => argument optional.
750 j => join argument to equivalent, making one word.
751 * => require other text after NAME as an argument. */
755 /* This is the table of mappings. Mappings are tried sequentially
756 for each option encountered; the first one that matches, wins. */
758 struct option_map option_map[] =
760 {"--all-warnings", "-Wall", 0},
761 {"--ansi", "-ansi", 0},
762 {"--assemble", "-S", 0},
763 {"--assert", "-A", "a"},
764 {"--comments", "-C", 0},
765 {"--compile", "-c", 0},
766 {"--debug", "-g", "oj"},
767 {"--define-macro", "-D", "a"},
768 {"--dependencies", "-M", 0},
769 {"--dump", "-d", "a"},
770 {"--dumpbase", "-dumpbase", "a"},
771 {"--entry", "-e", 0},
772 {"--extra-warnings", "-W", 0},
773 {"--for-assembler", "-Wa", "a"},
774 {"--for-linker", "-Xlinker", "a"},
775 {"--force-link", "-u", "a"},
776 {"--imacros", "-imacros", "a"},
777 {"--include", "-include", "a"},
778 {"--include-barrier", "-I-", 0},
779 {"--include-directory", "-I", "a"},
780 {"--include-directory-after", "-idirafter", "a"},
781 {"--include-prefix", "-iprefix", "a"},
782 {"--include-with-prefix", "-iwithprefix", "a"},
783 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
784 {"--include-with-prefix-after", "-iwithprefix", "a"},
785 {"--language", "-x", "a"},
786 {"--library-directory", "-L", "a"},
787 {"--machine", "-m", "aj"},
788 {"--machine-", "-m", "*j"},
789 {"--no-line-commands", "-P", 0},
790 {"--no-precompiled-includes", "-noprecomp", 0},
791 {"--no-standard-includes", "-nostdinc", 0},
792 {"--no-standard-libraries", "-nostdlib", 0},
793 {"--no-warnings", "-w", 0},
794 {"--optimize", "-O", "oj"},
795 {"--output", "-o", "a"},
796 {"--pedantic", "-pedantic", 0},
797 {"--pedantic-errors", "-pedantic-errors", 0},
798 {"--pipe", "-pipe", 0},
799 {"--prefix", "-B", "a"},
800 {"--preprocess", "-E", 0},
801 {"--print-search-dirs", "-print-search-dirs", 0},
802 {"--print-file-name", "-print-file-name=", "aj"},
803 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
804 {"--print-missing-file-dependencies", "-MG", 0},
805 {"--print-multi-lib", "-print-multi-lib", 0},
806 {"--print-multi-directory", "-print-multi-directory", 0},
807 {"--print-prog-name", "-print-prog-name=", "aj"},
808 {"--profile", "-p", 0},
809 {"--profile-blocks", "-a", 0},
810 {"--quiet", "-q", 0},
811 {"--save-temps", "-save-temps", 0},
812 {"--shared", "-shared", 0},
813 {"--silent", "-q", 0},
814 {"--static", "-static", 0},
815 {"--symbolic", "-symbolic", 0},
816 {"--target", "-b", "a"},
817 {"--trace-includes", "-H", 0},
818 {"--traditional", "-traditional", 0},
819 {"--traditional-cpp", "-traditional-cpp", 0},
820 {"--trigraphs", "-trigraphs", 0},
821 {"--undefine-macro", "-U", "a"},
822 {"--use-version", "-V", "a"},
823 {"--user-dependencies", "-MM", 0},
824 {"--verbose", "-v", 0},
825 {"--version", "-dumpversion", 0},
826 {"--warn-", "-W", "*j"},
827 {"--write-dependencies", "-MD", 0},
828 {"--write-user-dependencies", "-MMD", 0},
832 /* Translate the options described by *ARGCP and *ARGVP.
833 Make a new vector and store it back in *ARGVP,
834 and store its length in *ARGVC. */
837 translate_options (argcp, argvp)
843 char **argv = *argvp;
844 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
848 newv[newindex++] = argv[i++];
852 /* Translate -- options. */
853 if (argv[i][0] == '-' && argv[i][1] == '-')
855 /* Find a mapping that applies to this option. */
856 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
858 int optlen = strlen (option_map[j].name);
859 int arglen = strlen (argv[i]);
860 int complen = arglen > optlen ? optlen : arglen;
861 char *arginfo = option_map[j].arg_info;
866 if (!strncmp (argv[i], option_map[j].name, complen))
873 k < sizeof (option_map) / sizeof (option_map[0]);
875 if (strlen (option_map[k].name) >= arglen
876 && !strncmp (argv[i], option_map[k].name, arglen))
878 error ("Ambiguous abbreviation %s", argv[i]);
882 if (k != sizeof (option_map) / sizeof (option_map[0]))
888 /* If the option has an argument, accept that. */
889 if (argv[i][optlen] == '=')
890 arg = argv[i] + optlen + 1;
892 /* If this mapping requires extra text at end of name,
893 accept that as "argument". */
894 else if (index (arginfo, '*') != 0)
895 arg = argv[i] + optlen;
897 /* Otherwise, extra text at end means mismatch.
898 Try other mappings. */
903 else if (index (arginfo, '*') != 0)
905 error ("Incomplete `%s' option", option_map[j].name);
909 /* Handle arguments. */
910 if (index (arginfo, 'a') != 0)
916 error ("Missing argument to `%s' option",
924 else if (index (arginfo, '*') != 0)
926 else if (index (arginfo, 'o') == 0)
929 error ("Extraneous argument to `%s' option",
934 /* Store the translation as one argv elt or as two. */
935 if (arg != 0 && index (arginfo, 'j') != 0)
936 newv[newindex++] = concat (option_map[j].equivalent, arg,
940 newv[newindex++] = option_map[j].equivalent;
941 newv[newindex++] = arg;
944 newv[newindex++] = option_map[j].equivalent;
952 /* Handle old-fashioned options--just copy them through,
953 with their arguments. */
954 else if (argv[i][0] == '-')
956 char *p = argv[i] + 1;
960 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
961 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
962 else if (WORD_SWITCH_TAKES_ARG (p))
963 nskip += WORD_SWITCH_TAKES_ARG (p);
964 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
967 else if (! strcmp (p, "Xlinker"))
970 /* Watch out for an option at the end of the command line that
971 is missing arguments, and avoid skipping past the end of the
973 if (nskip + i > argc)
978 newv[newindex++] = argv[i++];
983 /* Ordinary operands, or +e options. */
984 newv[newindex++] = argv[i++];
1003 static char buffer[30];
1005 return "cannot access";
1007 if (e > 0 && e < sys_nerr)
1008 return sys_errlist[e];
1010 sprintf (buffer, "Unknown error %d", e);
1015 /* Read compilation specs from a file named FILENAME,
1016 replacing the default ones.
1018 A suffix which starts with `*' is a definition for
1019 one of the machine-specific sub-specs. The "suffix" should be
1020 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1021 The corresponding spec is stored in asm_spec, etc.,
1022 rather than in the `compilers' vector.
1024 Anything invalid in the file is a fatal error. */
1027 read_specs (filename)
1032 struct stat statbuf;
1037 fprintf (stderr, "Reading specs from %s\n", filename);
1039 /* Open and stat the file. */
1040 desc = open (filename, O_RDONLY, 0);
1042 pfatal_with_name (filename);
1043 if (stat (filename, &statbuf) < 0)
1044 pfatal_with_name (filename);
1046 /* Read contents of file into BUFFER. */
1047 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1048 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1050 pfatal_with_name (filename);
1051 buffer[readlen] = 0;
1054 /* Scan BUFFER for specs, putting them in the vector. */
1060 char *in, *out, *p1, *p2;
1062 /* Advance P in BUFFER to the next nonblank nocomment line. */
1063 p = skip_whitespace (p);
1067 /* Find the colon that should end the suffix. */
1069 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1070 /* The colon shouldn't be missing. */
1072 fatal ("specs file malformed after %d characters", p1 - buffer);
1073 /* Skip back over trailing whitespace. */
1075 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1076 /* Copy the suffix to a string. */
1077 suffix = save_string (p, p2 - p);
1078 /* Find the next line. */
1079 p = skip_whitespace (p1 + 1);
1081 fatal ("specs file malformed after %d characters", p - buffer);
1083 /* Find next blank line. */
1084 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1085 /* Specs end at the blank line and do not include the newline. */
1086 spec = save_string (p, p1 - p);
1089 /* Delete backslash-newline sequences from the spec. */
1094 if (in[0] == '\\' && in[1] == '\n')
1096 else if (in[0] == '#')
1098 while (*in && *in != '\n') in++;
1105 if (suffix[0] == '*')
1107 if (! strcmp (suffix, "*link_command"))
1108 link_command_spec = spec;
1110 set_spec (suffix + 1, spec);
1114 /* Add this pair to the vector. */
1116 = ((struct compiler *)
1117 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1118 compilers[n_compilers].suffix = suffix;
1119 bzero ((char *) compilers[n_compilers].spec,
1120 sizeof compilers[n_compilers].spec);
1121 compilers[n_compilers].spec[0] = spec;
1123 bzero ((char *) &compilers[n_compilers],
1124 sizeof compilers[n_compilers]);
1128 link_command_spec = spec;
1131 if (link_command_spec == 0)
1132 fatal ("spec file has no spec for linking");
1141 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1142 be considered whitespace. */
1143 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1145 else if (*p == '\n' || *p == ' ' || *p == '\t')
1149 while (*p != '\n') p++;
1159 /* Structure to keep track of the specs that have been defined so far.
1160 These are accessed using %(specname) or %[specname] in a compiler
1165 char *name; /* Name of the spec. */
1166 char *spec; /* The spec itself. */
1167 struct spec_list *next; /* Next spec in linked list. */
1170 /* List of specs that have been defined so far. */
1172 static struct spec_list *specs = (struct spec_list *) 0;
1174 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1175 removed; If the spec starts with a + then SPEC is added to the end of the
1179 set_spec (name, spec)
1183 struct spec_list *sl;
1186 /* See if the spec already exists */
1187 for (sl = specs; sl; sl = sl->next)
1188 if (strcmp (sl->name, name) == 0)
1193 /* Not found - make it */
1194 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1195 sl->name = save_string (name, strlen (name));
1196 sl->spec = save_string ("", 0);
1201 old_spec = sl->spec;
1202 if (name && spec[0] == '+' && isspace (spec[1]))
1203 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1205 sl->spec = save_string (spec, strlen (spec));
1207 if (! strcmp (name, "asm"))
1208 asm_spec = sl->spec;
1209 else if (! strcmp (name, "asm_final"))
1210 asm_final_spec = sl->spec;
1211 else if (! strcmp (name, "cc1"))
1212 cc1_spec = sl->spec;
1213 else if (! strcmp (name, "cc1plus"))
1214 cc1plus_spec = sl->spec;
1215 else if (! strcmp (name, "cpp"))
1216 cpp_spec = sl->spec;
1217 else if (! strcmp (name, "endfile"))
1218 endfile_spec = sl->spec;
1219 else if (! strcmp (name, "lib"))
1220 lib_spec = sl->spec;
1221 else if (! strcmp (name, "libgcc"))
1222 libgcc_spec = sl->spec;
1223 else if (! strcmp (name, "link"))
1224 link_spec = sl->spec;
1225 else if (! strcmp (name, "predefines"))
1226 cpp_predefines = sl->spec;
1227 else if (! strcmp (name, "signed_char"))
1228 signed_char_spec = sl->spec;
1229 else if (! strcmp (name, "startfile"))
1230 startfile_spec = sl->spec;
1231 else if (! strcmp (name, "switches_need_spaces"))
1232 switches_need_spaces = sl->spec;
1233 else if (! strcmp (name, "cross_compile"))
1234 cross_compile = atoi (sl->spec);
1235 else if (! strcmp (name, "multilib"))
1236 multilib_select = sl->spec;
1237 else if (! strcmp (name, "multilib_matches"))
1238 multilib_matches = sl->spec;
1239 else if (! strcmp (name, "multilib_extra"))
1240 multilib_extra = sl->spec;
1241 else if (! strcmp (name, "multilib_defaults"))
1242 multilib_defaults = sl->spec;
1243 else if (! strcmp (name, "version"))
1244 compiler_version = sl->spec;
1249 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1251 if (! strcmp (name, extra_specs[i].name))
1253 extra_specs[i].spec = sl->spec;
1260 /* Free the old spec */
1265 /* Accumulate a command (program name and args), and run it. */
1267 /* Vector of pointers to arguments in the current line of specifications. */
1269 static char **argbuf;
1271 /* Number of elements allocated in argbuf. */
1273 static int argbuf_length;
1275 /* Number of elements in argbuf currently in use (containing args). */
1277 static int argbuf_index;
1279 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1280 temp file. Used only if MKTEMP_EACH_FILE. */
1282 static struct temp_name {
1283 char *suffix; /* suffix associated with the code. */
1284 int length; /* strlen (suffix). */
1285 int unique; /* Indicates whether %g or %u/%U was used. */
1286 char *filename; /* associated filename. */
1287 int filename_length; /* strlen (filename). */
1288 struct temp_name *next;
1291 /* Number of commands executed so far. */
1293 static int execution_count;
1295 /* Number of commands that exited with a signal. */
1297 static int signal_count;
1299 /* Name with which this program was invoked. */
1301 static char *programname;
1303 /* Structures to keep track of prefixes to try when looking for files. */
1307 char *prefix; /* String to prepend to the path. */
1308 struct prefix_list *next; /* Next in linked list. */
1309 int require_machine_suffix; /* Don't use without machine_suffix. */
1310 /* 2 means try both machine_suffix and just_machine_suffix. */
1311 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1316 struct prefix_list *plist; /* List of prefixes to try */
1317 int max_len; /* Max length of a prefix in PLIST */
1318 char *name; /* Name of this list (used in config stuff) */
1321 /* List of prefixes to try when looking for executables. */
1323 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1325 /* List of prefixes to try when looking for startup (crt0) files. */
1327 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1329 /* List of prefixes to try when looking for include files. */
1331 static struct path_prefix include_prefixes = { 0, 0, "include" };
1333 /* Suffix to attach to directories searched for commands.
1334 This looks like `MACHINE/VERSION/'. */
1336 static char *machine_suffix = 0;
1338 /* Suffix to attach to directories searched for commands.
1339 This is just `MACHINE/'. */
1341 static char *just_machine_suffix = 0;
1343 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1345 static char *gcc_exec_prefix;
1347 /* Default prefixes to attach to command names. */
1349 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1350 #undef MD_EXEC_PREFIX
1351 #undef MD_STARTFILE_PREFIX
1352 #undef MD_STARTFILE_PREFIX_1
1355 #ifndef STANDARD_EXEC_PREFIX
1356 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1357 #endif /* !defined STANDARD_EXEC_PREFIX */
1359 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1360 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1361 #ifdef MD_EXEC_PREFIX
1362 static char *md_exec_prefix = MD_EXEC_PREFIX;
1365 #ifndef STANDARD_STARTFILE_PREFIX
1366 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1367 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1369 #ifdef MD_STARTFILE_PREFIX
1370 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1372 #ifdef MD_STARTFILE_PREFIX_1
1373 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1375 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1376 static char *standard_startfile_prefix_1 = "/lib/";
1377 static char *standard_startfile_prefix_2 = "/usr/lib/";
1379 #ifndef TOOLDIR_BASE_PREFIX
1380 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1382 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1383 static char *tooldir_prefix;
1385 /* Subdirectory to use for locating libraries. Set by
1386 set_multilib_dir based on the compilation options. */
1388 static char *multilib_dir;
1390 /* Clear out the vector of arguments (after a command is executed). */
1398 /* Add one argument to the vector at the end.
1399 This is done when a space is seen or at the end of the line.
1400 If DELETE_ALWAYS is nonzero, the arg is a filename
1401 and the file should be deleted eventually.
1402 If DELETE_FAILURE is nonzero, the arg is a filename
1403 and the file should be deleted if this compilation fails. */
1406 store_arg (arg, delete_always, delete_failure)
1408 int delete_always, delete_failure;
1410 if (argbuf_index + 1 == argbuf_length)
1412 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1415 argbuf[argbuf_index++] = arg;
1416 argbuf[argbuf_index] = 0;
1418 if (delete_always || delete_failure)
1419 record_temp_file (arg, delete_always, delete_failure);
1422 /* Record the names of temporary files we tell compilers to write,
1423 and delete them at the end of the run. */
1425 /* This is the common prefix we use to make temp file names.
1426 It is chosen once for each run of this program.
1427 It is substituted into a spec by %g.
1428 Thus, all temp file names contain this prefix.
1429 In practice, all temp file names start with this prefix.
1431 This prefix comes from the envvar TMPDIR if it is defined;
1432 otherwise, from the P_tmpdir macro if that is defined;
1433 otherwise, in /usr/tmp or /tmp;
1434 or finally the current directory if all else fails. */
1436 static char *temp_filename;
1438 /* Length of the prefix. */
1440 static int temp_filename_length;
1442 /* Define the list of temporary files to delete. */
1447 struct temp_file *next;
1450 /* Queue of files to delete on success or failure of compilation. */
1451 static struct temp_file *always_delete_queue;
1452 /* Queue of files to delete on failure of compilation. */
1453 static struct temp_file *failure_delete_queue;
1455 /* Record FILENAME as a file to be deleted automatically.
1456 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1457 otherwise delete it in any case.
1458 FAIL_DELETE nonzero means delete it if a compilation step fails;
1459 otherwise delete it in any case. */
1462 record_temp_file (filename, always_delete, fail_delete)
1467 register char *name;
1468 name = xmalloc (strlen (filename) + 1);
1469 strcpy (name, filename);
1473 register struct temp_file *temp;
1474 for (temp = always_delete_queue; temp; temp = temp->next)
1475 if (! strcmp (name, temp->name))
1477 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1478 temp->next = always_delete_queue;
1480 always_delete_queue = temp;
1486 register struct temp_file *temp;
1487 for (temp = failure_delete_queue; temp; temp = temp->next)
1488 if (! strcmp (name, temp->name))
1490 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1491 temp->next = failure_delete_queue;
1493 failure_delete_queue = temp;
1498 /* Delete all the temporary files whose names we previously recorded. */
1501 delete_if_ordinary (name)
1508 printf ("Delete %s? (y or n) ", name);
1512 while ((c = getchar ()) != '\n' && c != EOF) ;
1513 if (i == 'y' || i == 'Y')
1515 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1516 if (unlink (name) < 0)
1518 perror_with_name (name);
1522 delete_temp_files ()
1524 register struct temp_file *temp;
1526 for (temp = always_delete_queue; temp; temp = temp->next)
1527 delete_if_ordinary (temp->name);
1528 always_delete_queue = 0;
1531 /* Delete all the files to be deleted on error. */
1534 delete_failure_queue ()
1536 register struct temp_file *temp;
1538 for (temp = failure_delete_queue; temp; temp = temp->next)
1539 delete_if_ordinary (temp->name);
1543 clear_failure_queue ()
1545 failure_delete_queue = 0;
1548 /* Routine to add variables to the environment. We do this to pass
1549 the pathname of the gcc driver, and the directories search to the
1550 collect2 program, which is being run as ld. This way, we can be
1551 sure of executing the right compiler when collect2 wants to build
1552 constructors and destructors. Since the environment variables we
1553 use come from an obstack, we don't have to worry about allocating
1562 #ifndef VMS /* nor about VMS */
1564 extern char **environ;
1565 char **old_environ = environ;
1569 int str_len = strlen (str);
1573 while ((ch = *p++) != '\0' && ch != '=')
1579 /* Search for replacing an existing environment variable, and
1580 count the number of total environment variables. */
1581 for (envp = old_environ; *envp; envp++)
1584 if (!strncmp (str, *envp, name_len))
1591 /* Add a new environment variable */
1592 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1594 bcopy ((char *) old_environ, (char *) (environ + 1),
1595 sizeof (char *) * (num_envs+1));
1600 #endif /* HAVE_PUTENV */
1603 /* Build a list of search directories from PATHS.
1604 PREFIX is a string to prepend to the list.
1605 If CHECK_DIR_P is non-zero we ensure the directory exists.
1606 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1607 It is also used by the --print-search-dirs flag. */
1610 build_search_list (paths, prefix, check_dir_p)
1611 struct path_prefix *paths;
1615 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1617 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1618 int first_time = TRUE;
1619 struct prefix_list *pprefix;
1621 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1623 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1625 int len = strlen (pprefix->prefix);
1629 || is_directory (pprefix->prefix, machine_suffix, 0)))
1632 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1635 obstack_grow (&collect_obstack, pprefix->prefix, len);
1636 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1639 if (just_machine_suffix
1640 && pprefix->require_machine_suffix == 2
1642 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1645 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1648 obstack_grow (&collect_obstack, pprefix->prefix, len);
1649 obstack_grow (&collect_obstack, just_machine_suffix,
1653 if (!pprefix->require_machine_suffix)
1656 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1659 obstack_grow (&collect_obstack, pprefix->prefix, len);
1662 obstack_1grow (&collect_obstack, '\0');
1663 return obstack_finish (&collect_obstack);
1666 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1670 putenv_from_prefixes (paths, env_var)
1671 struct path_prefix *paths;
1674 putenv (build_search_list (paths, env_var, 1));
1677 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1678 access to check permissions.
1679 Return 0 if not found, otherwise return its name, allocated with malloc. */
1682 find_a_file (pprefix, name, mode)
1683 struct path_prefix *pprefix;
1688 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1689 struct prefix_list *pl;
1690 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1693 len += strlen (machine_suffix);
1695 temp = xmalloc (len);
1697 /* Determine the filename to execute (special case for absolute paths). */
1699 if (*name == '/' || *name == DIR_SEPARATOR)
1701 if (access (name, mode))
1703 strcpy (temp, name);
1708 for (pl = pprefix->plist; pl; pl = pl->next)
1712 /* Some systems have a suffix for executable files.
1713 So try appending that first. */
1714 if (file_suffix[0] != 0)
1716 strcpy (temp, pl->prefix);
1717 strcat (temp, machine_suffix);
1718 strcat (temp, name);
1719 strcat (temp, file_suffix);
1720 if (access (temp, mode) == 0)
1722 if (pl->used_flag_ptr != 0)
1723 *pl->used_flag_ptr = 1;
1728 /* Now try just the name. */
1729 strcpy (temp, pl->prefix);
1730 strcat (temp, machine_suffix);
1731 strcat (temp, name);
1732 if (access (temp, mode) == 0)
1734 if (pl->used_flag_ptr != 0)
1735 *pl->used_flag_ptr = 1;
1740 /* Certain prefixes are tried with just the machine type,
1741 not the version. This is used for finding as, ld, etc. */
1742 if (just_machine_suffix && pl->require_machine_suffix == 2)
1744 /* Some systems have a suffix for executable files.
1745 So try appending that first. */
1746 if (file_suffix[0] != 0)
1748 strcpy (temp, pl->prefix);
1749 strcat (temp, just_machine_suffix);
1750 strcat (temp, name);
1751 strcat (temp, file_suffix);
1752 if (access (temp, mode) == 0)
1754 if (pl->used_flag_ptr != 0)
1755 *pl->used_flag_ptr = 1;
1760 strcpy (temp, pl->prefix);
1761 strcat (temp, just_machine_suffix);
1762 strcat (temp, name);
1763 if (access (temp, mode) == 0)
1765 if (pl->used_flag_ptr != 0)
1766 *pl->used_flag_ptr = 1;
1771 /* Certain prefixes can't be used without the machine suffix
1772 when the machine or version is explicitly specified. */
1773 if (!pl->require_machine_suffix)
1775 /* Some systems have a suffix for executable files.
1776 So try appending that first. */
1777 if (file_suffix[0] != 0)
1779 strcpy (temp, pl->prefix);
1780 strcat (temp, name);
1781 strcat (temp, file_suffix);
1782 if (access (temp, mode) == 0)
1784 if (pl->used_flag_ptr != 0)
1785 *pl->used_flag_ptr = 1;
1790 strcpy (temp, pl->prefix);
1791 strcat (temp, name);
1792 if (access (temp, mode) == 0)
1794 if (pl->used_flag_ptr != 0)
1795 *pl->used_flag_ptr = 1;
1805 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1806 at the start of the list, otherwise it goes at the end.
1808 If WARN is nonzero, we will warn if no file is found
1809 through this prefix. WARN should point to an int
1810 which will be set to 1 if this entry is used.
1812 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1813 the complete value of machine_suffix.
1814 2 means try both machine_suffix and just_machine_suffix. */
1817 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1818 struct path_prefix *pprefix;
1821 int require_machine_suffix;
1824 struct prefix_list *pl, **prev;
1827 if (!first && pprefix->plist)
1829 for (pl = pprefix->plist; pl->next; pl = pl->next)
1834 prev = &pprefix->plist;
1836 /* Keep track of the longest prefix */
1838 len = strlen (prefix);
1839 if (len > pprefix->max_len)
1840 pprefix->max_len = len;
1842 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1843 pl->prefix = save_string (prefix, len);
1844 pl->require_machine_suffix = require_machine_suffix;
1845 pl->used_flag_ptr = warn;
1852 pl->next = (struct prefix_list *) 0;
1856 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1859 unused_prefix_warnings (pprefix)
1860 struct path_prefix *pprefix;
1862 struct prefix_list *pl = pprefix->plist;
1866 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1868 if (pl->require_machine_suffix && machine_suffix)
1869 error ("file path prefix `%s%s' never used", pl->prefix,
1872 error ("file path prefix `%s' never used", pl->prefix);
1874 /* Prevent duplicate warnings. */
1875 *pl->used_flag_ptr = 1;
1881 /* Get rid of all prefixes built up so far in *PLISTP. */
1884 free_path_prefix (pprefix)
1885 struct path_prefix *pprefix;
1887 struct prefix_list *pl = pprefix->plist;
1888 struct prefix_list *temp;
1894 free (temp->prefix);
1895 free ((char *) temp);
1897 pprefix->plist = (struct prefix_list *) 0;
1900 /* Execute the command specified by the arguments on the current line of spec.
1901 When using pipes, this includes several piped-together commands
1902 with `|' between them.
1904 Return 0 if successful, -1 if failed. */
1910 int n_commands; /* # of command. */
1914 char *prog; /* program name. */
1915 char **argv; /* vector of args. */
1916 int pid; /* pid of process for this command. */
1919 struct command *commands; /* each command buffer with above info. */
1921 /* Count # of piped commands. */
1922 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1923 if (strcmp (argbuf[i], "|") == 0)
1926 /* Get storage for each command. */
1928 = (struct command *) alloca (n_commands * sizeof (struct command));
1930 /* Split argbuf into its separate piped processes,
1931 and record info about each one.
1932 Also search for the programs that are to be run. */
1934 commands[0].prog = argbuf[0]; /* first command. */
1935 commands[0].argv = &argbuf[0];
1936 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1938 commands[0].argv[0] = string;
1940 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1941 if (strcmp (argbuf[i], "|") == 0)
1942 { /* each command. */
1943 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1944 fatal ("-pipe not supported");
1946 argbuf[i] = 0; /* termination of command args. */
1947 commands[n_commands].prog = argbuf[i + 1];
1948 commands[n_commands].argv = &argbuf[i + 1];
1949 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1951 commands[n_commands].argv[0] = string;
1955 argbuf[argbuf_index] = 0;
1957 /* If -v, print what we are about to do, and maybe query. */
1961 /* Print each piped command as a separate line. */
1962 for (i = 0; i < n_commands ; i++)
1966 for (j = commands[i].argv; *j; j++)
1967 fprintf (stderr, " %s", *j);
1969 /* Print a pipe symbol after all but the last command. */
1970 if (i + 1 != n_commands)
1971 fprintf (stderr, " |");
1972 fprintf (stderr, "\n");
1976 fprintf (stderr, "\nGo ahead? (y or n) ");
1980 while (getchar () != '\n') ;
1981 if (i != 'y' && i != 'Y')
1986 /* Run each piped subprocess. */
1988 for (i = 0; i < n_commands; i++)
1990 char *errmsg_fmt, *errmsg_arg;
1991 char *string = commands[i].argv[0];
1993 commands[i].pid = pexecute (string, commands[i].argv,
1994 programname, temp_filename,
1995 &errmsg_fmt, &errmsg_arg,
1996 ((i == 0 ? PEXECUTE_FIRST : 0)
1997 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
1998 | (string == commands[i].prog
1999 ? PEXECUTE_SEARCH : 0)
2000 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2002 if (commands[i].pid == -1)
2003 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2005 if (string != commands[i].prog)
2011 /* Wait for all the subprocesses to finish.
2012 We don't care what order they finish in;
2013 we know that N_COMMANDS waits will get them all.
2014 Ignore subprocesses that we don't know about,
2015 since they can be spawned by the process that exec'ed us. */
2020 for (i = 0; i < n_commands; )
2026 pid = pwait (commands[i].pid, &status, 0);
2030 for (j = 0; j < n_commands; j++)
2031 if (commands[j].pid == pid)
2036 if (WIFSIGNALED (status))
2038 fatal ("Internal compiler error: program %s got fatal signal %d",
2039 commands[j].prog, WTERMSIG (status));
2043 else if (WIFEXITED (status)
2044 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2054 /* Find all the switches given to us
2055 and make a vector describing them.
2056 The elements of the vector are strings, one per switch given.
2057 If a switch uses following arguments, then the `part1' field
2058 is the switch itself and the `args' field
2059 is a null-terminated vector containing the following arguments.
2060 The `live_cond' field is 1 if the switch is true in a conditional spec,
2061 -1 if false (overridden by a later switch), and is initialized to zero.
2062 The `valid' field is nonzero if any spec has looked at this switch;
2063 if it remains zero at the end of the run, it must be meaningless. */
2073 static struct switchstr *switches;
2075 static int n_switches;
2083 /* Also a vector of input files specified. */
2085 static struct infile *infiles;
2087 static int n_infiles;
2089 /* And a vector of corresponding output files is made up later. */
2091 static char **outfiles;
2093 /* Used to track if none of the -B paths are used. */
2096 /* Used to track if standard path isn't used and -b or -V is specified. */
2097 static int warn_std;
2099 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2100 static int *warn_std_ptr = 0;
2103 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2105 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2106 is true if we should look for an executable suffix as well. */
2109 convert_filename (name, do_exe)
2114 int len = strlen (name);
2116 #ifdef HAVE_OBJECT_SUFFIX
2117 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2119 && name[len - 2] == '.'
2120 && name[len - 1] == 'o')
2122 obstack_grow (&obstack, name[i], len - 2);
2123 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2124 name = obstack_finish (&obstack);
2128 #ifdef HAVE_EXECUTABLE_SUFFIX
2129 /* If there is no filetype, make it the executable suffix (which includes
2130 the "."). But don't get confused if we have just "-o". */
2131 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2134 for (i = 0; i < len; i++)
2138 obstack_grow (&obstack, name, len);
2139 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2140 name = obstack_finish (&obstack);
2147 /* Create the vector `switches' and its contents.
2148 Store its length in `n_switches'. */
2151 process_command (argc, argv)
2157 char *spec_lang = 0;
2158 int last_language_n_infiles;
2161 int lang_n_infiles = 0;
2163 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2168 /* Figure compiler version from version string. */
2170 compiler_version = save_string (version_string, strlen (version_string));
2171 for (temp = compiler_version; *temp; ++temp)
2180 /* Set up the default search paths. */
2182 if (gcc_exec_prefix)
2184 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2185 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2188 /* COMPILER_PATH and LIBRARY_PATH have values
2189 that are lists of directory names with colons. */
2191 temp = getenv ("COMPILER_PATH");
2194 char *startp, *endp;
2195 char *nstore = (char *) alloca (strlen (temp) + 3);
2197 startp = endp = temp;
2200 if (*endp == PATH_SEPARATOR || *endp == 0)
2202 strncpy (nstore, startp, endp-startp);
2204 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2205 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2207 nstore[endp-startp] = DIR_SEPARATOR;
2208 nstore[endp-startp+1] = 0;
2211 nstore[endp-startp] = 0;
2212 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2215 endp = startp = endp + 1;
2222 temp = getenv ("LIBRARY_PATH");
2223 if (temp && ! cross_compile)
2225 char *startp, *endp;
2226 char *nstore = (char *) alloca (strlen (temp) + 3);
2228 startp = endp = temp;
2231 if (*endp == PATH_SEPARATOR || *endp == 0)
2233 strncpy (nstore, startp, endp-startp);
2235 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2236 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2238 nstore[endp-startp] = DIR_SEPARATOR;
2239 nstore[endp-startp+1] = 0;
2242 nstore[endp-startp] = 0;
2243 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2246 endp = startp = endp + 1;
2253 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2254 temp = getenv ("LPATH");
2255 if (temp && ! cross_compile)
2257 char *startp, *endp;
2258 char *nstore = (char *) alloca (strlen (temp) + 3);
2260 startp = endp = temp;
2263 if (*endp == PATH_SEPARATOR || *endp == 0)
2265 strncpy (nstore, startp, endp-startp);
2267 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2268 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2270 nstore[endp-startp] = DIR_SEPARATOR;
2271 nstore[endp-startp+1] = 0;
2274 nstore[endp-startp] = 0;
2275 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2278 endp = startp = endp + 1;
2285 /* Convert new-style -- options to old-style. */
2286 translate_options (&argc, &argv);
2288 /* Scan argv twice. Here, the first time, just count how many switches
2289 there will be in their vector, and how many input files in theirs.
2290 Here we also parse the switches that cc itself uses (e.g. -v). */
2292 for (i = 1; i < argc; i++)
2294 if (! strcmp (argv[i], "-dumpspecs"))
2296 printf ("*asm:\n%s\n\n", asm_spec);
2297 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2298 printf ("*cpp:\n%s\n\n", cpp_spec);
2299 printf ("*cc1:\n%s\n\n", cc1_spec);
2300 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2301 printf ("*endfile:\n%s\n\n", endfile_spec);
2302 printf ("*link:\n%s\n\n", link_spec);
2303 printf ("*lib:\n%s\n\n", lib_spec);
2304 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2305 printf ("*startfile:\n%s\n\n", startfile_spec);
2306 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2307 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2308 printf ("*predefines:\n%s\n\n", cpp_predefines);
2309 printf ("*cross_compile:\n%d\n\n", cross_compile);
2310 printf ("*version:\n%s\n\n", compiler_version);
2311 printf ("*multilib:\n%s\n\n", multilib_select);
2312 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults);
2313 printf ("*multilib_extra:\n%s\n\n", multilib_extra);
2314 printf ("*multilib_matches:\n%s\n\n", multilib_matches);
2319 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2320 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2321 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2326 else if (! strcmp (argv[i], "-dumpversion"))
2328 printf ("%s\n", version_string);
2331 else if (! strcmp (argv[i], "-dumpmachine"))
2333 printf ("%s\n", spec_machine);
2336 else if (! strcmp (argv[i], "-print-search-dirs"))
2337 print_search_dirs = 1;
2338 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2339 print_file_name = "libgcc.a";
2340 else if (! strncmp (argv[i], "-print-file-name=", 17))
2341 print_file_name = argv[i] + 17;
2342 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2343 print_prog_name = argv[i] + 17;
2344 else if (! strcmp (argv[i], "-print-multi-lib"))
2345 print_multi_lib = 1;
2346 else if (! strcmp (argv[i], "-print-multi-directory"))
2347 print_multi_directory = 1;
2348 else if (! strncmp (argv[i], "-Wa,", 4))
2351 /* Pass the rest of this option to the assembler. */
2353 n_assembler_options++;
2354 if (!assembler_options)
2356 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2359 = (char **) xrealloc (assembler_options,
2360 n_assembler_options * sizeof (char **));
2362 /* Split the argument at commas. */
2364 for (j = 4; argv[i][j]; j++)
2365 if (argv[i][j] == ',')
2367 assembler_options[n_assembler_options - 1]
2368 = save_string (argv[i] + prev, j - prev);
2369 n_assembler_options++;
2371 = (char **) xrealloc (assembler_options,
2372 n_assembler_options * sizeof (char **));
2375 /* Record the part after the last comma. */
2376 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2378 else if (! strncmp (argv[i], "-Wp,", 4))
2381 /* Pass the rest of this option to the preprocessor. */
2383 n_preprocessor_options++;
2384 if (!preprocessor_options)
2385 preprocessor_options
2386 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2388 preprocessor_options
2389 = (char **) xrealloc (preprocessor_options,
2390 n_preprocessor_options * sizeof (char **));
2392 /* Split the argument at commas. */
2394 for (j = 4; argv[i][j]; j++)
2395 if (argv[i][j] == ',')
2397 preprocessor_options[n_preprocessor_options - 1]
2398 = save_string (argv[i] + prev, j - prev);
2399 n_preprocessor_options++;
2400 preprocessor_options
2401 = (char **) xrealloc (preprocessor_options,
2402 n_preprocessor_options * sizeof (char **));
2405 /* Record the part after the last comma. */
2406 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2408 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2409 /* The +e options to the C++ front-end. */
2411 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2414 /* Split the argument at commas. */
2415 for (j = 3; argv[i][j]; j++)
2416 n_infiles += (argv[i][j] == ',');
2418 else if (strcmp (argv[i], "-Xlinker") == 0)
2421 fatal ("argument to `-Xlinker' is missing");
2426 else if (strncmp (argv[i], "-l", 2) == 0)
2428 else if (strcmp (argv[i], "-save-temps") == 0)
2430 save_temps_flag = 1;
2433 else if (argv[i][0] == '-' && argv[i][1] != 0)
2435 register char *p = &argv[i][1];
2436 register int c = *p;
2441 if (p[1] == 0 && i + 1 == argc)
2442 fatal ("argument to `-b' is missing");
2444 spec_machine = argv[++i];
2446 spec_machine = p + 1;
2448 warn_std_ptr = &warn_std;
2453 int *temp = (int *) xmalloc (sizeof (int));
2455 if (p[1] == 0 && i + 1 == argc)
2456 fatal ("argument to `-B' is missing");
2461 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2462 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2463 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2466 /* As a kludge, if the arg is "[foo/]stageN/", just add
2467 "[foo/]include" to the include prefix. */
2469 int len = strlen (value);
2472 && (value[len - 8] == '/'
2473 || value[len - 8] == DIR_SEPARATOR)))
2474 && strncmp (value + len - 7, "stage", 5) == 0
2475 && isdigit (value[len - 2])
2476 && (value[len - 1] == '/'
2477 || value[len - 1] == DIR_SEPARATOR))
2480 add_prefix (&include_prefixes, "include",
2484 char *string = xmalloc (len + 1);
2485 strncpy (string, value, len-7);
2486 strcat (string, "include");
2487 add_prefix (&include_prefixes, string,
2495 case 'v': /* Print our subcommands and print versions. */
2497 /* If they do anything other than exactly `-v', don't set
2498 verbose_flag; rather, continue on to give the error. */
2505 if (p[1] == 0 && i + 1 == argc)
2506 fatal ("argument to `-V' is missing");
2508 spec_version = argv[++i];
2510 spec_version = p + 1;
2511 compiler_version = spec_version;
2512 warn_std_ptr = &warn_std;
2526 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2527 argv[i] = convert_filename (argv[i], 1);
2529 argv[i+1] = convert_filename (argv[i+1], 1);
2537 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2538 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2539 else if (WORD_SWITCH_TAKES_ARG (p))
2540 i += WORD_SWITCH_TAKES_ARG (p);
2550 if (have_c && have_o && lang_n_infiles > 1)
2551 fatal ("cannot specify -o with -c and multiple compilations");
2553 /* Set up the search paths before we go looking for config files. */
2555 /* These come before the md prefixes so that we will find gcc's subcommands
2556 (such as cpp) rather than those of the host system. */
2557 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2558 as well as trying the machine and the version. */
2560 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2561 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2564 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2565 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2567 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2568 dir_separator_str, NULL_PTR);
2570 /* If tooldir is relative, base it on exec_prefixes. A relative
2571 tooldir lets us move the installed tree as a unit.
2573 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2574 directories, so that we can search both the user specified directory
2575 and the standard place. */
2577 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2579 if (gcc_exec_prefix)
2581 char *gcc_exec_tooldir_prefix
2582 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2583 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2585 add_prefix (&exec_prefixes,
2586 concat (gcc_exec_tooldir_prefix, "bin",
2587 dir_separator_str, NULL_PTR),
2589 add_prefix (&startfile_prefixes,
2590 concat (gcc_exec_tooldir_prefix, "lib",
2591 dir_separator_str, NULL_PTR),
2595 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2596 dir_separator_str, spec_version,
2597 dir_separator_str, tooldir_prefix, NULL_PTR);
2600 add_prefix (&exec_prefixes,
2601 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2603 add_prefix (&startfile_prefixes,
2604 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2607 /* More prefixes are enabled in main, after we read the specs file
2608 and determine whether this is cross-compilation or not. */
2611 /* Then create the space for the vectors and scan again. */
2613 switches = ((struct switchstr *)
2614 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2615 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2618 last_language_n_infiles = -1;
2620 /* This, time, copy the text of each switch and store a pointer
2621 to the copy in the vector of switches.
2622 Store all the infiles in their vector. */
2624 for (i = 1; i < argc; i++)
2626 /* Just skip the switches that were handled by the preceding loop. */
2627 if (! strncmp (argv[i], "-Wa,", 4))
2629 else if (! strncmp (argv[i], "-Wp,", 4))
2631 else if (! strcmp (argv[i], "-print-search-dirs"))
2633 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2635 else if (! strncmp (argv[i], "-print-file-name=", 17))
2637 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2639 else if (! strcmp (argv[i], "-print-multi-lib"))
2641 else if (! strcmp (argv[i], "-print-multi-directory"))
2643 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2645 /* Compensate for the +e options to the C++ front-end;
2646 they're there simply for cfront call-compatibility. We do
2647 some magic in default_compilers to pass them down properly.
2648 Note we deliberately start at the `+' here, to avoid passing
2649 -e0 or -e1 down into the linker. */
2650 switches[n_switches].part1 = &argv[i][0];
2651 switches[n_switches].args = 0;
2652 switches[n_switches].live_cond = 0;
2653 switches[n_switches].valid = 0;
2656 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2659 /* Split the argument at commas. */
2661 for (j = 4; argv[i][j]; j++)
2662 if (argv[i][j] == ',')
2664 infiles[n_infiles].language = 0;
2665 infiles[n_infiles++].name
2666 = save_string (argv[i] + prev, j - prev);
2669 /* Record the part after the last comma. */
2670 infiles[n_infiles].language = 0;
2671 infiles[n_infiles++].name = argv[i] + prev;
2673 else if (strcmp (argv[i], "-Xlinker") == 0)
2675 infiles[n_infiles].language = 0;
2676 infiles[n_infiles++].name = argv[++i];
2678 else if (strncmp (argv[i], "-l", 2) == 0)
2680 infiles[n_infiles].language = 0;
2681 infiles[n_infiles++].name = argv[i];
2683 else if (argv[i][0] == '-' && argv[i][1] != 0)
2685 register char *p = &argv[i][1];
2686 register int c = *p;
2688 if (c == 'B' || c == 'b' || c == 'V')
2690 /* Skip a separate arg, if any. */
2697 if (p[1] == 0 && i + 1 == argc)
2698 fatal ("argument to `-x' is missing");
2700 spec_lang = argv[++i];
2703 if (! strcmp (spec_lang, "none"))
2704 /* Suppress the warning if -xnone comes after the last input
2705 file, because alternate command interfaces like g++ might
2706 find it useful to place -xnone after each input file. */
2709 last_language_n_infiles = n_infiles;
2712 switches[n_switches].part1 = p;
2713 /* Deal with option arguments in separate argv elements. */
2714 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2715 || WORD_SWITCH_TAKES_ARG (p))
2718 int n_args = WORD_SWITCH_TAKES_ARG (p);
2722 /* Count only the option arguments in separate argv elements. */
2723 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2725 if (i + n_args >= argc)
2726 fatal ("argument to `-%s' is missing", p);
2727 switches[n_switches].args
2728 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2730 switches[n_switches].args[j++] = argv[++i];
2731 /* Null-terminate the vector. */
2732 switches[n_switches].args[j] = 0;
2734 else if (index (switches_need_spaces, c))
2736 /* On some systems, ld cannot handle some options without
2737 a space. So split the option from its argument. */
2738 char *part1 = (char *) xmalloc (2);
2742 switches[n_switches].part1 = part1;
2743 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2744 switches[n_switches].args[0] = xmalloc (strlen (p));
2745 strcpy (switches[n_switches].args[0], &p[1]);
2746 switches[n_switches].args[1] = 0;
2749 switches[n_switches].args = 0;
2751 switches[n_switches].live_cond = 0;
2752 switches[n_switches].valid = 0;
2753 /* This is always valid, since gcc.c itself understands it. */
2754 if (!strcmp (p, "save-temps"))
2755 switches[n_switches].valid = 1;
2760 #ifdef HAVE_OBJECT_SUFFIX
2761 argv[i] = convert_filename (argv[i], 0);
2764 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2766 perror_with_name (argv[i]);
2771 infiles[n_infiles].language = spec_lang;
2772 infiles[n_infiles++].name = argv[i];
2777 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2778 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2780 switches[n_switches].part1 = 0;
2781 infiles[n_infiles].name = 0;
2784 /* Process a spec string, accumulating and running commands. */
2786 /* These variables describe the input file name.
2787 input_file_number is the index on outfiles of this file,
2788 so that the output file name can be stored for later use by %o.
2789 input_basename is the start of the part of the input file
2790 sans all directory names, and basename_length is the number
2791 of characters starting there excluding the suffix .c or whatever. */
2793 static char *input_filename;
2794 static int input_file_number;
2795 static int input_filename_length;
2796 static int basename_length;
2797 static char *input_basename;
2798 static char *input_suffix;
2800 /* These are variables used within do_spec and do_spec_1. */
2802 /* Nonzero if an arg has been started and not yet terminated
2803 (with space, tab or newline). */
2804 static int arg_going;
2806 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2807 is a temporary file name. */
2808 static int delete_this_arg;
2810 /* Nonzero means %w has been seen; the next arg to be terminated
2811 is the output file name of this compilation. */
2812 static int this_is_output_file;
2814 /* Nonzero means %s has been seen; the next arg to be terminated
2815 is the name of a library file and we should try the standard
2816 search dirs for it. */
2817 static int this_is_library_file;
2819 /* Nonzero means that the input of this command is coming from a pipe. */
2820 static int input_from_pipe;
2822 /* Process the spec SPEC and run the commands specified therein.
2823 Returns 0 if the spec is successfully processed; -1 if failed. */
2833 delete_this_arg = 0;
2834 this_is_output_file = 0;
2835 this_is_library_file = 0;
2836 input_from_pipe = 0;
2838 value = do_spec_1 (spec, 0, NULL_PTR);
2840 /* Force out any unfinished command.
2841 If -pipe, this forces out the last command if it ended in `|'. */
2844 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2847 if (argbuf_index > 0)
2854 /* Process the sub-spec SPEC as a portion of a larger spec.
2855 This is like processing a whole spec except that we do
2856 not initialize at the beginning and we do not supply a
2857 newline by default at the end.
2858 INSWITCH nonzero means don't process %-sequences in SPEC;
2859 in this case, % is treated as an ordinary character.
2860 This is used while substituting switches.
2861 INSWITCH nonzero also causes SPC not to terminate an argument.
2863 Value is zero unless a line was finished
2864 and the command on that line reported an error. */
2867 do_spec_1 (spec, inswitch, soft_matched_part)
2870 char *soft_matched_part;
2872 register char *p = spec;
2879 /* If substituting a switch, treat all chars like letters.
2880 Otherwise, NL, SPC, TAB and % are special. */
2881 switch (inswitch ? 'a' : c)
2884 /* End of line: finish any pending argument,
2885 then run the pending command if one has been started. */
2888 obstack_1grow (&obstack, 0);
2889 string = obstack_finish (&obstack);
2890 if (this_is_library_file)
2891 string = find_file (string);
2892 store_arg (string, delete_this_arg, this_is_output_file);
2893 if (this_is_output_file)
2894 outfiles[input_file_number] = string;
2898 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2900 for (i = 0; i < n_switches; i++)
2901 if (!strcmp (switches[i].part1, "pipe"))
2904 /* A `|' before the newline means use a pipe here,
2905 but only if -pipe was specified.
2906 Otherwise, execute now and don't pass the `|' as an arg. */
2909 input_from_pipe = 1;
2910 switches[i].valid = 1;
2917 if (argbuf_index > 0)
2923 /* Reinitialize for a new command, and for a new argument. */
2926 delete_this_arg = 0;
2927 this_is_output_file = 0;
2928 this_is_library_file = 0;
2929 input_from_pipe = 0;
2933 /* End any pending argument. */
2936 obstack_1grow (&obstack, 0);
2937 string = obstack_finish (&obstack);
2938 if (this_is_library_file)
2939 string = find_file (string);
2940 store_arg (string, delete_this_arg, this_is_output_file);
2941 if (this_is_output_file)
2942 outfiles[input_file_number] = string;
2946 obstack_1grow (&obstack, c);
2952 /* Space or tab ends an argument if one is pending. */
2955 obstack_1grow (&obstack, 0);
2956 string = obstack_finish (&obstack);
2957 if (this_is_library_file)
2958 string = find_file (string);
2959 store_arg (string, delete_this_arg, this_is_output_file);
2960 if (this_is_output_file)
2961 outfiles[input_file_number] = string;
2963 /* Reinitialize for a new argument. */
2965 delete_this_arg = 0;
2966 this_is_output_file = 0;
2967 this_is_library_file = 0;
2974 fatal ("Invalid specification! Bug in cc.");
2977 obstack_grow (&obstack, input_basename, basename_length);
2982 delete_this_arg = 2;
2985 /* Dump out the directories specified with LIBRARY_PATH,
2986 followed by the absolute directories
2987 that we search for startfiles. */
2990 struct prefix_list *pl = startfile_prefixes.plist;
2992 char *buffer = (char *) xmalloc (bufsize);
2995 for (; pl; pl = pl->next)
2997 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
2998 /* Used on systems which record the specified -L dirs
2999 and use them to search for dynamic linking. */
3000 /* Relative directories always come from -B,
3001 and it is better not to use them for searching
3002 at run time. In particular, stage1 loses */
3003 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3006 /* Try subdirectory if there is one. */
3007 if (multilib_dir != NULL)
3011 if (strlen (pl->prefix) + strlen (machine_suffix)
3013 bufsize = (strlen (pl->prefix)
3014 + strlen (machine_suffix)) * 2 + 1;
3015 buffer = (char *) xrealloc (buffer, bufsize);
3016 strcpy (buffer, pl->prefix);
3017 strcat (buffer, machine_suffix);
3018 if (is_directory (buffer, multilib_dir, 1))
3020 do_spec_1 ("-L", 0, NULL_PTR);
3021 #ifdef SPACE_AFTER_L_OPTION
3022 do_spec_1 (" ", 0, NULL_PTR);
3024 do_spec_1 (buffer, 1, NULL_PTR);
3025 do_spec_1 (multilib_dir, 1, NULL_PTR);
3026 /* Make this a separate argument. */
3027 do_spec_1 (" ", 0, NULL_PTR);
3030 if (!pl->require_machine_suffix)
3032 if (is_directory (pl->prefix, multilib_dir, 1))
3034 do_spec_1 ("-L", 0, NULL_PTR);
3035 #ifdef SPACE_AFTER_L_OPTION
3036 do_spec_1 (" ", 0, NULL_PTR);
3038 do_spec_1 (pl->prefix, 1, NULL_PTR);
3039 do_spec_1 (multilib_dir, 1, NULL_PTR);
3040 /* Make this a separate argument. */
3041 do_spec_1 (" ", 0, NULL_PTR);
3047 if (is_directory (pl->prefix, machine_suffix, 1))
3049 do_spec_1 ("-L", 0, NULL_PTR);
3050 #ifdef SPACE_AFTER_L_OPTION
3051 do_spec_1 (" ", 0, NULL_PTR);
3053 do_spec_1 (pl->prefix, 1, NULL_PTR);
3054 /* Remove slash from machine_suffix. */
3055 if (strlen (machine_suffix) >= bufsize)
3056 bufsize = strlen (machine_suffix) * 2 + 1;
3057 buffer = (char *) xrealloc (buffer, bufsize);
3058 strcpy (buffer, machine_suffix);
3059 idx = strlen (buffer);
3060 if (buffer[idx - 1] == '/'
3061 || buffer[idx - 1] == DIR_SEPARATOR)
3062 buffer[idx - 1] = 0;
3063 do_spec_1 (buffer, 1, NULL_PTR);
3064 /* Make this a separate argument. */
3065 do_spec_1 (" ", 0, NULL_PTR);
3068 if (!pl->require_machine_suffix)
3070 if (is_directory (pl->prefix, "", 1))
3072 do_spec_1 ("-L", 0, NULL_PTR);
3073 #ifdef SPACE_AFTER_L_OPTION
3074 do_spec_1 (" ", 0, NULL_PTR);
3076 /* Remove slash from pl->prefix. */
3077 if (strlen (pl->prefix) >= bufsize)
3078 bufsize = strlen (pl->prefix) * 2 + 1;
3079 buffer = (char *) xrealloc (buffer, bufsize);
3080 strcpy (buffer, pl->prefix);
3081 idx = strlen (buffer);
3082 if (buffer[idx - 1] == '/'
3083 || buffer[idx - 1] == DIR_SEPARATOR)
3084 buffer[idx - 1] = 0;
3085 do_spec_1 (buffer, 1, NULL_PTR);
3086 /* Make this a separate argument. */
3087 do_spec_1 (" ", 0, NULL_PTR);
3096 /* {...:%efoo} means report an error with `foo' as error message
3097 and don't execute any more commands for this file. */
3101 while (*p != 0 && *p != '\n') p++;
3102 buf = (char *) alloca (p - q + 1);
3103 strncpy (buf, q, p - q);
3113 if (save_temps_flag)
3115 obstack_grow (&obstack, input_basename, basename_length);
3116 delete_this_arg = 0;
3120 #ifdef MKTEMP_EACH_FILE
3121 /* ??? This has a problem: the total number of
3122 values mktemp can return is limited.
3123 That matters for the names of object files.
3124 In 2.4, do something about that. */
3125 struct temp_name *t;
3127 while (*p == '.' || isalpha (*p)
3128 || (p[0] == '%' && p[1] == 'O'))
3131 /* See if we already have an association of %g/%u/%U and
3133 for (t = temp_names; t; t = t->next)
3134 if (t->length == p - suffix
3135 && strncmp (t->suffix, suffix, p - suffix) == 0
3136 && t->unique == (c != 'g'))
3139 /* Make a new association if needed. %u requires one. */
3140 if (t == 0 || c == 'u')
3144 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3145 t->next = temp_names;
3148 t->length = p - suffix;
3149 t->suffix = save_string (suffix, p - suffix);
3150 t->unique = (c != 'g');
3151 temp_filename = choose_temp_base ();
3152 temp_filename_length = strlen (temp_filename);
3153 t->filename = temp_filename;
3154 t->filename_length = temp_filename_length;
3157 obstack_grow (&obstack, t->filename, t->filename_length);
3158 delete_this_arg = 1;
3160 obstack_grow (&obstack, temp_filename, temp_filename_length);
3161 if (c == 'u' || c == 'U')
3167 sprintf (buff, "%d", unique);
3168 obstack_grow (&obstack, buff, strlen (buff));
3171 delete_this_arg = 1;
3177 obstack_grow (&obstack, input_filename, input_filename_length);
3183 struct prefix_list *pl = include_prefixes.plist;
3185 if (gcc_exec_prefix)
3187 do_spec_1 ("-iprefix", 1, NULL_PTR);
3188 /* Make this a separate argument. */
3189 do_spec_1 (" ", 0, NULL_PTR);
3190 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3191 do_spec_1 (" ", 0, NULL_PTR);
3194 for (; pl; pl = pl->next)
3196 do_spec_1 ("-isystem", 1, NULL_PTR);
3197 /* Make this a separate argument. */
3198 do_spec_1 (" ", 0, NULL_PTR);
3199 do_spec_1 (pl->prefix, 1, NULL_PTR);
3200 do_spec_1 (" ", 0, NULL_PTR);
3206 for (i = 0; i < n_infiles; i++)
3207 store_arg (outfiles[i], 0, 0);
3211 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3216 this_is_library_file = 1;
3220 this_is_output_file = 1;
3225 int cur_index = argbuf_index;
3226 /* Handle the {...} following the %W. */
3229 p = handle_braces (p + 1);
3232 /* If any args were output, mark the last one for deletion
3234 if (argbuf_index != cur_index)
3235 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3239 /* %x{OPTION} records OPTION for %X to output. */
3245 /* Skip past the option value and make a copy. */
3250 string = save_string (p1 + 1, p - p1 - 2);
3252 /* See if we already recorded this option. */
3253 for (i = 0; i < n_linker_options; i++)
3254 if (! strcmp (string, linker_options[i]))
3260 /* This option is new; add it. */
3262 if (!linker_options)
3264 = (char **) xmalloc (n_linker_options * sizeof (char **));
3267 = (char **) xrealloc (linker_options,
3268 n_linker_options * sizeof (char **));
3270 linker_options[n_linker_options - 1] = string;
3274 /* Dump out the options accumulated previously using %x. */
3276 for (i = 0; i < n_linker_options; i++)
3278 do_spec_1 (linker_options[i], 1, NULL_PTR);
3279 /* Make each accumulated option a separate argument. */
3280 do_spec_1 (" ", 0, NULL_PTR);
3284 /* Dump out the options accumulated previously using -Wa,. */
3286 for (i = 0; i < n_assembler_options; i++)
3288 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3289 /* Make each accumulated option a separate argument. */
3290 do_spec_1 (" ", 0, NULL_PTR);
3294 /* Dump out the options accumulated previously using -Wp,. */
3296 for (i = 0; i < n_preprocessor_options; i++)
3298 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3299 /* Make each accumulated option a separate argument. */
3300 do_spec_1 (" ", 0, NULL_PTR);
3304 /* Here are digits and numbers that just process
3305 a certain constant string as a spec. */
3308 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3314 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3320 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3326 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3332 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3338 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3344 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3350 value = do_spec_1 (link_spec, 0, NULL_PTR);
3356 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3362 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3369 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3373 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3377 if (! strncmp (y, "-D", 2))
3378 /* Copy the whole option. */
3379 while (*y && *y != ' ' && *y != '\t')
3381 else if (*y == ' ' || *y == '\t')
3382 /* Copy whitespace to the result. */
3384 /* Don't copy other options. */
3391 value = do_spec_1 (buf, 0, NULL_PTR);
3399 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3403 /* Copy all of CPP_PREDEFINES into BUF,
3404 but put __ after every -D and at the end of each arg. */
3408 if (! strncmp (y, "-D", 2))
3416 || (*(y+1) != '_' && ! isupper (*(y+1))))
3418 /* Stick __ at front of macro name. */
3421 /* Arrange to stick __ at the end as well. */
3425 /* Copy the macro name. */
3426 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3435 /* Copy the value given, if any. */
3436 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 CPP_PREDEFINES into BUF,
3449 but put __ after every -D. */
3453 if (! strncmp (y, "-D", 2))
3458 || (*(y+1) != '_' && ! isupper (*(y+1))))
3460 /* Stick -D__ at front of macro name. */
3466 /* Copy the macro name. */
3467 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3470 /* Copy the value given, if any. */
3471 while (*y && *y != ' ' && *y != '\t')
3476 /* Do not copy this macro - we have just done it before */
3477 while (*y && *y != ' ' && *y != '\t')
3481 else if (*y == ' ' || *y == '\t')
3482 /* Copy whitespace to the result. */
3484 /* Don't copy -A options */
3490 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3494 if (! strncmp (y, "-A", 2))
3495 /* Copy the whole option. */
3496 while (*y && *y != ' ' && *y != '\t')
3498 else if (*y == ' ' || *y == '\t')
3499 /* Copy whitespace to the result. */
3501 /* Don't copy other options. */
3508 value = do_spec_1 (buf, 0, NULL_PTR);
3515 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3520 /* Here we define characters other than letters and digits. */
3523 p = handle_braces (p);
3529 obstack_1grow (&obstack, '%');
3533 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3534 do_spec_1 (" ", 0, NULL_PTR);
3537 /* Process a string found as the value of a spec given by name.
3538 This feature allows individual machine descriptions
3539 to add and use their own specs.
3540 %[...] modifies -D options the way %P does;
3541 %(...) uses the spec unmodified. */
3546 struct spec_list *sl;
3549 /* The string after the S/P is the name of a spec that is to be
3551 while (*p && *p != ')' && *p != ']')
3554 /* See if it's in the list */
3555 for (len = p - name, sl = specs; sl; sl = sl->next)
3556 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3566 value = do_spec_1 (name, 0, NULL_PTR);
3572 char *x = (char *) alloca (strlen (name) * 2 + 1);
3576 /* Copy all of NAME into BUF, but put __ after
3577 every -D and at the end of each arg, */
3580 if (! strncmp (y, "-D", 2))
3588 else if (*y == ' ' || *y == 0)
3602 value = do_spec_1 (buf, 0, NULL_PTR);
3608 /* Discard the closing paren or bracket. */
3616 int c1 = *p++; /* Select first or second version number. */
3617 char *v = compiler_version;
3620 /* The format of the version string is
3621 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3623 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3624 while (! isdigit (*v))
3626 if (v > compiler_version && v[-1] != '-')
3629 /* If desired, advance to second version number. */
3632 /* Set V after the first period. */
3633 while (isdigit (*v))
3640 /* Set Q at the next period or at the end. */
3642 while (isdigit (*q))
3644 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3647 /* Put that part into the command. */
3648 obstack_grow (&obstack, v, q - v);
3654 if (input_from_pipe)
3655 do_spec_1 ("-", 0, NULL_PTR);
3664 /* Backslash: treat next character as ordinary. */
3669 /* Ordinary character: put it into the current argument. */
3670 obstack_1grow (&obstack, c);
3674 return 0; /* End of string */
3677 /* Return 0 if we call do_spec_1 and that returns -1. */
3690 /* A `|' after the open-brace means,
3691 if the test fails, output a single minus sign rather than nothing.
3692 This is used in %{|!pipe:...}. */
3696 /* A `!' after the open-brace negates the condition:
3697 succeed if the specified switch is not present. */
3701 /* A `.' after the open-brace means test against the current suffix. */
3711 while (*p != ':' && *p != '}') p++;
3714 register int count = 1;
3732 int found = (input_suffix != 0
3733 && strlen (input_suffix) == p - filter
3734 && strncmp (input_suffix, filter, p - filter) == 0);
3740 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3745 else if (p[-1] == '*' && p[0] == '}')
3747 /* Substitute all matching switches as separate args. */
3750 for (i = 0; i < n_switches; i++)
3751 if (!strncmp (switches[i].part1, filter, p - filter)
3752 && check_live_switch (i, p - filter))
3757 /* Test for presence of the specified switch. */
3761 /* If name specified ends in *, as in {x*:...},
3762 check for %* and handle that case. */
3763 if (p[-1] == '*' && !negate)
3768 /* First see whether we have %*. */
3772 if (*r == '%' && r[1] == '*')
3776 /* If we do, handle that case. */
3779 /* Substitute all matching switches as separate args.
3780 But do this by substituting for %*
3781 in the text that follows the colon. */
3783 unsigned hard_match_len = p - filter - 1;
3784 char *string = save_string (p + 1, q - p - 2);
3786 for (i = 0; i < n_switches; i++)
3787 if (!strncmp (switches[i].part1, filter, hard_match_len)
3788 && check_live_switch (i, -1))
3790 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3791 /* Pass any arguments this switch has. */
3799 /* If name specified ends in *, as in {x*:...},
3800 check for presence of any switch name starting with x. */
3803 for (i = 0; i < n_switches; i++)
3805 unsigned hard_match_len = p - filter - 1;
3807 if (!strncmp (switches[i].part1, filter, hard_match_len)
3808 && check_live_switch (i, hard_match_len))
3814 /* Otherwise, check for presence of exact name specified. */
3817 for (i = 0; i < n_switches; i++)
3819 if (!strncmp (switches[i].part1, filter, p - filter)
3820 && switches[i].part1[p - filter] == 0
3821 && check_live_switch (i, -1))
3829 /* If it is as desired (present for %{s...}, absent for %{-s...})
3830 then substitute either the switch or the specified
3831 conditional text. */
3832 if (present != negate)
3840 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3846 /* Here if a %{|...} conditional fails: output a minus sign,
3847 which means "standard output" or "standard input". */
3848 do_spec_1 ("-", 0, NULL_PTR);
3855 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3856 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3857 spec, or -1 if either exact match or %* is used.
3859 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3860 whose value does not begin with "no-" is obsoleted by the same value
3861 with the "no-", similarly for a switch with the "no-" prefix. */
3864 check_live_switch (switchnum, prefix_length)
3868 char *name = switches[switchnum].part1;
3871 /* In the common case of {<at-most-one-letter>*}, a negating
3872 switch would always match, so ignore that case. We will just
3873 send the conflicting switches to the compiler phase. */
3874 if (prefix_length >= 0 && prefix_length <= 1)
3877 /* If we already processed this switch and determined if it was
3878 live or not, return our past determination. */
3879 if (switches[switchnum].live_cond != 0)
3880 return switches[switchnum].live_cond > 0;
3882 /* Now search for duplicate in a manner that depends on the name. */
3886 for (i = switchnum + 1; i < n_switches; i++)
3887 if (switches[i].part1[0] == 'O')
3889 switches[switchnum].valid = 1;
3890 switches[switchnum].live_cond = -1;
3895 case 'W': case 'f': case 'm':
3896 if (! strncmp (name + 1, "no-", 3))
3898 /* We have Xno-YYY, search for XYYY. */
3899 for (i = switchnum + 1; i < n_switches; i++)
3900 if (switches[i].part1[0] == name[0]
3901 && ! strcmp (&switches[i].part1[1], &name[4]))
3903 switches[switchnum].valid = 1;
3904 switches[switchnum].live_cond = -1;
3910 /* We have XYYY, search for Xno-YYY. */
3911 for (i = switchnum + 1; i < n_switches; i++)
3912 if (switches[i].part1[0] == name[0]
3913 && switches[i].part1[1] == 'n'
3914 && switches[i].part1[2] == 'o'
3915 && switches[i].part1[3] == '-'
3916 && !strcmp (&switches[i].part1[4], &name[1]))
3918 switches[switchnum].valid = 1;
3919 switches[switchnum].live_cond = -1;
3926 /* Otherwise the switch is live. */
3927 switches[switchnum].live_cond = 1;
3931 /* Pass a switch to the current accumulating command
3932 in the same form that we received it.
3933 SWITCHNUM identifies the switch; it is an index into
3934 the vector of switches gcc received, which is `switches'.
3935 This cannot fail since it never finishes a command line.
3937 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3940 give_switch (switchnum, omit_first_word)
3942 int omit_first_word;
3944 if (!omit_first_word)
3946 do_spec_1 ("-", 0, NULL_PTR);
3947 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
3949 do_spec_1 (" ", 0, NULL_PTR);
3950 if (switches[switchnum].args != 0)
3953 for (p = switches[switchnum].args; *p; p++)
3955 do_spec_1 (*p, 1, NULL_PTR);
3956 do_spec_1 (" ", 0, NULL_PTR);
3959 switches[switchnum].valid = 1;
3962 /* Search for a file named NAME trying various prefixes including the
3963 user's -B prefix and some standard ones.
3964 Return the absolute file name found. If nothing is found, return NAME. */
3972 /* Try multilib_dir if it is defined. */
3973 if (multilib_dir != NULL)
3977 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
3978 strcpy (try, multilib_dir);
3979 strcat (try, dir_separator_str);
3982 newname = find_a_file (&startfile_prefixes, try, R_OK);
3984 /* If we don't find it in the multi library dir, then fall
3985 through and look for it in the normal places. */
3986 if (newname != NULL)
3990 newname = find_a_file (&startfile_prefixes, name, R_OK);
3991 return newname ? newname : name;
3994 /* Determine whether a directory exists. If LINKER, return 0 for
3995 certain fixed names not needed by the linker. If not LINKER, it is
3996 only important to return 0 if the host machine has a small ARG_MAX
4000 is_directory (path1, path2, linker)
4005 int len1 = strlen (path1);
4006 int len2 = strlen (path2);
4007 char *path = (char *) alloca (3 + len1 + len2);
4011 #ifndef SMALL_ARG_MAX
4016 /* Construct the path from the two parts. Ensure the string ends with "/.".
4017 The resulting path will be a directory even if the given path is a
4019 bcopy (path1, path, len1);
4020 bcopy (path2, path + len1, len2);
4021 cp = path + len1 + len2;
4022 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4023 *cp++ = DIR_SEPARATOR;
4027 /* Exclude directories that the linker is known to search. */
4030 && strcmp (path, concat (dir_separator_str, "lib",
4031 dir_separator_str, ".", NULL_PTR)) == 0)
4033 && strcmp (path, concat (dir_separator_str, "usr",
4034 dir_separator_str, "lib",
4035 dir_separator_str, ".", NULL_PTR)) == 0)))
4038 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4041 /* On fatal signals, delete all the temporary files. */
4044 fatal_error (signum)
4047 signal (signum, SIG_DFL);
4048 delete_failure_queue ();
4049 delete_temp_files ();
4050 /* Get the same signal again, this time not handled,
4051 so its normal effect occurs. */
4052 kill (getpid (), signum);
4063 int linker_was_run = 0;
4064 char *explicit_link_files;
4068 p = argv[0] + strlen (argv[0]);
4069 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4072 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4073 signal (SIGINT, fatal_error);
4075 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4076 signal (SIGHUP, fatal_error);
4078 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4079 signal (SIGTERM, fatal_error);
4081 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4082 signal (SIGPIPE, fatal_error);
4086 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4088 obstack_init (&obstack);
4090 /* Build multilib_select, et. al from the separate lines that make up each
4091 multilib selection. */
4093 char **q = multilib_raw;
4096 obstack_init (&multilib_obstack);
4097 while ((p = *q++) != (char *) 0)
4098 obstack_grow (&multilib_obstack, p, strlen (p));
4100 obstack_1grow (&multilib_obstack, 0);
4101 multilib_select = obstack_finish (&multilib_obstack);
4103 q = multilib_matches_raw;
4104 while ((p = *q++) != (char *) 0)
4105 obstack_grow (&multilib_obstack, p, strlen (p));
4107 obstack_1grow (&multilib_obstack, 0);
4108 multilib_matches = obstack_finish (&multilib_obstack);
4112 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4116 obstack_1grow (&multilib_obstack, ' ');
4117 obstack_grow (&multilib_obstack,
4118 multilib_defaults_raw[i],
4119 strlen (multilib_defaults_raw[i]));
4123 obstack_1grow (&multilib_obstack, 0);
4124 multilib_defaults = obstack_finish (&multilib_obstack);
4127 /* Set up to remember the pathname of gcc and any options
4128 needed for collect. We use argv[0] instead of programname because
4129 we need the complete pathname. */
4130 obstack_init (&collect_obstack);
4131 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4132 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4133 putenv (obstack_finish (&collect_obstack));
4135 #ifdef INIT_ENVIRONMENT
4136 /* Set up any other necessary machine specific environment variables. */
4137 putenv (INIT_ENVIRONMENT);
4140 /* Choose directory for temp files. */
4142 temp_filename = choose_temp_base ();
4143 temp_filename_length = strlen (temp_filename);
4145 /* Make a table of what switches there are (switches, n_switches).
4146 Make a table of specified input files (infiles, n_infiles).
4147 Decode switches that are handled locally. */
4149 process_command (argc, argv);
4151 /* Initialize the vector of specs to just the default.
4152 This means one element containing 0s, as a terminator. */
4154 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4155 bcopy ((char *) default_compilers, (char *) compilers,
4156 sizeof default_compilers);
4157 n_compilers = n_default_compilers;
4159 /* Read specs from a file if there is one. */
4161 machine_suffix = concat (spec_machine, dir_separator_str,
4162 spec_version, dir_separator_str, NULL_PTR);
4163 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4165 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4166 /* Read the specs file unless it is a default one. */
4167 if (specs_file != 0 && strcmp (specs_file, "specs"))
4168 read_specs (specs_file);
4174 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4175 set_spec (extra_specs[k].name, extra_specs[k].spec);
4179 /* If not cross-compiling, look for startfiles in the standard places. */
4180 /* The fact that these are done here, after reading the specs file,
4181 means that it cannot be found in these directories.
4182 But that's okay. It should never be there anyway. */
4185 #ifdef MD_EXEC_PREFIX
4186 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4187 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4190 #ifdef MD_STARTFILE_PREFIX
4191 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4194 #ifdef MD_STARTFILE_PREFIX_1
4195 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4198 /* If standard_startfile_prefix is relative, base it on
4199 standard_exec_prefix. This lets us move the installed tree
4200 as a unit. If GCC_EXEC_PREFIX is defined, base
4201 standard_startfile_prefix on that as well. */
4202 if (*standard_startfile_prefix == '/'
4203 || *standard_startfile_prefix == DIR_SEPARATOR)
4204 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4208 if (gcc_exec_prefix)
4209 add_prefix (&startfile_prefixes,
4210 concat (gcc_exec_prefix, machine_suffix,
4211 standard_startfile_prefix, NULL_PTR),
4213 add_prefix (&startfile_prefixes,
4214 concat (standard_exec_prefix,
4216 standard_startfile_prefix, NULL_PTR),
4220 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4222 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4224 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4225 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4230 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4231 add_prefix (&startfile_prefixes,
4232 concat (gcc_exec_prefix, machine_suffix,
4233 standard_startfile_prefix, NULL_PTR),
4237 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4238 if (gcc_exec_prefix)
4240 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4241 + strlen (spec_version)
4242 + strlen (spec_machine) + 3);
4243 strcpy (temp, gcc_exec_prefix);
4244 strcat (temp, spec_machine);
4245 strcat (temp, dir_separator_str);
4246 strcat (temp, spec_version);
4247 strcat (temp, dir_separator_str);
4248 gcc_exec_prefix = temp;
4251 /* Now we have the specs.
4252 Set the `valid' bits for switches that match anything in any spec. */
4254 validate_all_switches ();
4256 /* Now that we have the switches and the specs, set
4257 the subdirectory based on the options. */
4258 set_multilib_dir ();
4260 /* Warn about any switches that no pass was interested in. */
4262 for (i = 0; i < n_switches; i++)
4263 if (! switches[i].valid)
4264 error ("unrecognized option `-%s'", switches[i].part1);
4266 /* Obey some of the options. */
4268 if (print_search_dirs)
4270 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4271 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4272 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4276 if (print_file_name)
4278 printf ("%s\n", find_file (print_file_name));
4282 if (print_prog_name)
4284 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4285 printf ("%s\n", (newname ? newname : print_prog_name));
4289 if (print_multi_lib)
4291 print_multilib_info ();
4295 if (print_multi_directory)
4297 if (multilib_dir == NULL)
4300 printf ("%s\n", multilib_dir);
4306 if (! strcmp (version_string, compiler_version))
4307 fprintf (stderr, "gcc version %s\n", version_string);
4309 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4310 version_string, compiler_version);
4317 fatal ("No input files");
4319 /* Make a place to record the compiler output file names
4320 that correspond to the input files. */
4322 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4323 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4325 /* Record which files were specified explicitly as link input. */
4327 explicit_link_files = xmalloc (n_infiles);
4328 bzero (explicit_link_files, n_infiles);
4330 for (i = 0; i < n_infiles; i++)
4332 register struct compiler *cp = 0;
4333 int this_file_error = 0;
4335 /* Tell do_spec what to substitute for %i. */
4337 input_filename = infiles[i].name;
4338 input_filename_length = strlen (input_filename);
4339 input_file_number = i;
4341 /* Use the same thing in %o, unless cp->spec says otherwise. */
4343 outfiles[i] = input_filename;
4345 /* Figure out which compiler from the file's suffix. */
4347 cp = lookup_compiler (infiles[i].name, input_filename_length,
4348 infiles[i].language);
4352 /* Ok, we found an applicable compiler. Run its spec. */
4353 /* First say how much of input_filename to substitute for %b */
4357 if (cp->spec[0][0] == '#')
4358 error ("%s: %s compiler not installed on this system",
4359 input_filename, &cp->spec[0][1]);
4361 input_basename = input_filename;
4362 for (p = input_filename; *p; p++)
4363 if (*p == '/' || *p == DIR_SEPARATOR)
4364 input_basename = p + 1;
4366 /* Find a suffix starting with the last period,
4367 and set basename_length to exclude that suffix. */
4368 basename_length = strlen (input_basename);
4369 p = input_basename + basename_length;
4370 while (p != input_basename && *p != '.') --p;
4371 if (*p == '.' && p != input_basename)
4373 basename_length = p - input_basename;
4374 input_suffix = p + 1;
4380 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4382 len += strlen (cp->spec[j]);
4384 p = (char *) xmalloc (len + 1);
4387 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4390 strcpy (p + len, cp->spec[j]);
4391 len += strlen (cp->spec[j]);
4394 value = do_spec (p);
4397 this_file_error = 1;
4400 /* If this file's name does not contain a recognized suffix,
4401 record it as explicit linker input. */
4404 explicit_link_files[i] = 1;
4406 /* Clear the delete-on-failure queue, deleting the files in it
4407 if this compilation failed. */
4409 if (this_file_error)
4411 delete_failure_queue ();
4414 /* If this compilation succeeded, don't delete those files later. */
4415 clear_failure_queue ();
4418 /* Run ld to link all the compiler output files. */
4420 if (error_count == 0)
4422 int tmp = execution_count;
4426 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4428 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4429 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4431 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4433 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4434 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4437 for (i = 0; i < n_switches; i++)
4441 obstack_grow (&collect_obstack, " ", 1);
4444 obstack_grow (&collect_obstack, "-", 1);
4445 obstack_grow (&collect_obstack, switches[i].part1,
4446 strlen (switches[i].part1));
4448 for (args = switches[i].args; args && *args; args++)
4450 obstack_grow (&collect_obstack, " ", 1);
4451 obstack_grow (&collect_obstack, *args, strlen (*args));
4454 obstack_grow (&collect_obstack, "\0", 1);
4455 putenv (obstack_finish (&collect_obstack));
4457 value = do_spec (link_command_spec);
4460 linker_was_run = (tmp != execution_count);
4463 /* Warn if a -B option was specified but the prefix was never used. */
4464 unused_prefix_warnings (&exec_prefixes);
4465 unused_prefix_warnings (&startfile_prefixes);
4467 /* If options said don't run linker,
4468 complain about input files to be given to the linker. */
4470 if (! linker_was_run && error_count == 0)
4471 for (i = 0; i < n_infiles; i++)
4472 if (explicit_link_files[i])
4473 error ("%s: linker input file unused since linking not done",
4476 /* Delete some or all of the temporary files we made. */
4479 delete_failure_queue ();
4480 delete_temp_files ();
4482 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4487 /* Find the proper compilation spec for the file name NAME,
4488 whose length is LENGTH. LANGUAGE is the specified language,
4489 or 0 if none specified. */
4491 static struct compiler *
4492 lookup_compiler (name, length, language)
4497 struct compiler *cp;
4499 /* Look for the language, if one is spec'd. */
4502 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4506 if (cp->suffix[0] == '@'
4507 && !strcmp (cp->suffix + 1, language))
4511 error ("language %s not recognized", language);
4514 /* Look for a suffix. */
4515 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4517 if (/* The suffix `-' matches only the file name `-'. */
4518 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4520 (strlen (cp->suffix) < length
4521 /* See if the suffix matches the end of NAME. */
4523 && (!strcmp (cp->suffix,
4524 name + length - strlen (cp->suffix))
4525 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4526 && !strcasecmp (cp->suffix,
4527 name + length - strlen (cp->suffix)))))
4529 && !strcmp (cp->suffix,
4530 name + length - strlen (cp->suffix))))
4533 if (cp->spec[0][0] == '@')
4535 struct compiler *new;
4536 /* An alias entry maps a suffix to a language.
4537 Search for the language; pass 0 for NAME and LENGTH
4538 to avoid infinite recursion if language not found.
4539 Construct the new compiler spec. */
4540 language = cp->spec[0] + 1;
4541 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4542 new->suffix = cp->suffix;
4543 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4544 (char *) new->spec, sizeof new->spec);
4547 /* A non-alias entry: return it. */
4559 register char *value = (char *) malloc (size);
4561 fatal ("virtual memory exhausted");
4566 xrealloc (ptr, size)
4570 register char *value = (char *) realloc (ptr, size);
4572 fatal ("virtual memory exhausted");
4576 /* This function is based on the one in libiberty. */
4579 concat VPROTO((char *first, ...))
4581 register int length;
4582 register char *newstr;
4590 /* First compute the size of the result and get sufficient memory. */
4592 VA_START (args, first);
4594 first = va_arg (args, char *);
4602 length += strlen (arg);
4603 arg = va_arg (args, char *);
4606 newstr = (char *) xmalloc (length + 1);
4609 /* Now copy the individual pieces to the result string. */
4611 VA_START (args, first);
4613 first = va_arg (args, char *);
4622 arg = va_arg (args, char *);
4631 save_string (s, len)
4635 register char *result = xmalloc (len + 1);
4637 bcopy (s, result, len);
4643 pfatal_with_name (name)
4646 fatal ("%s: %s", name, my_strerror (errno));
4650 perror_with_name (name)
4653 error ("%s: %s", name, my_strerror (errno));
4657 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4663 /* Space for trailing '\0' is in %s. */
4664 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4665 sprintf (msg, errmsg_fmt, errmsg_arg);
4669 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4672 /* More 'friendly' abort that prints the line and file.
4673 config.h can #define abort fancy_abort if you like that sort of thing. */
4678 fatal ("Internal gcc abort.");
4683 /* Output an error message and exit */
4686 fatal VPROTO((char *format, ...))
4693 VA_START (ap, format);
4696 format = va_arg (ap, char *);
4699 fprintf (stderr, "%s: ", programname);
4700 vfprintf (stderr, format, ap);
4702 fprintf (stderr, "\n");
4703 delete_temp_files ();
4708 error VPROTO((char *format, ...))
4715 VA_START (ap, format);
4718 format = va_arg (ap, char *);
4721 fprintf (stderr, "%s: ", programname);
4722 vfprintf (stderr, format, ap);
4725 fprintf (stderr, "\n");
4728 #else /* not HAVE_VPRINTF */
4731 fatal (msg, arg1, arg2)
4732 char *msg, *arg1, *arg2;
4734 error (msg, arg1, arg2);
4735 delete_temp_files ();
4740 error (msg, arg1, arg2)
4741 char *msg, *arg1, *arg2;
4743 fprintf (stderr, "%s: ", programname);
4744 fprintf (stderr, msg, arg1, arg2);
4745 fprintf (stderr, "\n");
4748 #endif /* not HAVE_VPRINTF */
4752 validate_all_switches ()
4754 struct compiler *comp;
4757 struct spec_list *spec;
4759 for (comp = compilers; comp->spec[0]; comp++)
4762 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4766 if (c == '%' && *p == '{')
4767 /* We have a switch spec. */
4768 validate_switches (p + 1);
4772 /* look through the linked list of extra specs read from the specs file */
4773 for (spec = specs; spec ; spec = spec->next)
4777 if (c == '%' && *p == '{')
4778 /* We have a switch spec. */
4779 validate_switches (p + 1);
4782 p = link_command_spec;
4784 if (c == '%' && *p == '{')
4785 /* We have a switch spec. */
4786 validate_switches (p + 1);
4788 /* Now notice switches mentioned in the machine-specific specs. */
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);
4808 p = signed_char_spec;
4810 if (c == '%' && *p == '{')
4811 /* We have a switch spec. */
4812 validate_switches (p + 1);
4816 if (c == '%' && *p == '{')
4817 /* We have a switch spec. */
4818 validate_switches (p + 1);
4822 if (c == '%' && *p == '{')
4823 /* We have a switch spec. */
4824 validate_switches (p + 1);
4828 if (c == '%' && *p == '{')
4829 /* We have a switch spec. */
4830 validate_switches (p + 1);
4834 if (c == '%' && *p == '{')
4835 /* We have a switch spec. */
4836 validate_switches (p + 1);
4840 if (c == '%' && *p == '{')
4841 /* We have a switch spec. */
4842 validate_switches (p + 1);
4846 if (c == '%' && *p == '{')
4847 /* We have a switch spec. */
4848 validate_switches (p + 1);
4853 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4855 p = extra_specs[i].spec;
4857 if (c == '%' && *p == '{')
4858 /* We have a switch spec. */
4859 validate_switches (p + 1);
4866 /* Look at the switch-name that comes after START
4867 and mark as valid all supplied switches that match it. */
4870 validate_switches (start)
4873 register char *p = start;
4888 while (*p != ':' && *p != '}') p++;
4892 else if (p[-1] == '*')
4894 /* Mark all matching switches as valid. */
4896 for (i = 0; i < n_switches; i++)
4897 if (!strncmp (switches[i].part1, filter, p - filter))
4898 switches[i].valid = 1;
4902 /* Mark an exact matching switch as valid. */
4903 for (i = 0; i < n_switches; i++)
4905 if (!strncmp (switches[i].part1, filter, p - filter)
4906 && switches[i].part1[p - filter] == 0)
4907 switches[i].valid = 1;
4912 /* Check whether a particular argument was used. The first time we
4913 canonialize the switches to keep only the ones we care about. */
4927 static struct mswitchstr *mswitches;
4928 static int n_mswitches;
4933 struct mswitchstr *matches;
4937 /* Break multilib_matches into the component strings of string and replacement
4939 for (p = multilib_matches; *p != '\0'; p++)
4943 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
4945 q = multilib_matches;
4956 matches[i].len = q - matches[i].str;
4958 matches[i].replace = ++q;
4959 while (*q != ';' && *q != '\0')
4965 matches[i].rep_len = q - matches[i].replace;
4973 /* Now build a list of the replacement string for switches that we care about */
4974 mswitches = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr)) * n_switches);
4975 for (i = 0; i < n_switches; i++)
4977 int xlen = strlen (switches[i].part1);
4978 for (j = 0; j < cnt; j++)
4979 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
4981 mswitches[n_mswitches].str = matches[j].replace;
4982 mswitches[n_mswitches].len = matches[j].rep_len;
4983 mswitches[n_mswitches].replace = (char *)0;
4984 mswitches[n_mswitches].rep_len = 0;
4991 for (i = 0; i < n_mswitches; i++)
4992 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
4999 default_arg (p, len)
5006 for (start = multilib_defaults; *start != '\0'; start = end+1)
5008 while (*start == ' ' || *start == '\t')
5014 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5017 if ((end - start) == len && strncmp (p, start, len) == 0)
5024 /* Work out the subdirectory to use based on the
5025 options. The format of multilib_select is a list of elements.
5026 Each element is a subdirectory name followed by a list of options
5027 followed by a semicolon. gcc will consider each line in turn. If
5028 none of the options beginning with an exclamation point are
5029 present, and all of the other options are present, that
5030 subdirectory will be used. */
5035 char *p = multilib_select;
5037 char *this_path, *this_arg;
5043 /* Ignore newlines. */
5050 /* Get the initial path. */
5058 this_path_len = p - this_path;
5060 /* Check the arguments. */
5075 while (*p != ' ' && *p != ';')
5082 if (*this_arg != '!')
5090 /* If this is a default argument, we can just ignore it.
5091 This is true even if this_arg begins with '!'. Beginning
5092 with '!' does not mean that this argument is necessarily
5093 inappropriate for this library: it merely means that
5094 there is a more specific library which uses this
5095 argument. If this argument is a default, we need not
5096 consider that more specific library. */
5097 if (! default_arg (this_arg, p - this_arg))
5099 ok = used_arg (this_arg, p - this_arg);
5110 if (this_path_len != 1
5111 || this_path[0] != '.')
5113 multilib_dir = xmalloc (this_path_len + 1);
5114 strncpy (multilib_dir, this_path, this_path_len);
5115 multilib_dir[this_path_len] = '\0';
5124 /* Print out the multiple library subdirectory selection
5125 information. This prints out a series of lines. Each line looks
5126 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5127 required. Only the desired options are printed out, the negative
5128 matches. The options are print without a leading dash. There are
5129 no spaces to make it easy to use the information in the shell.
5130 Each subdirectory is printed only once. This assumes the ordering
5131 generated by the genmultilib script. */
5134 print_multilib_info ()
5136 char *p = multilib_select;
5137 char *last_path = 0, *this_path;
5139 int last_path_len = 0;
5143 /* Ignore newlines. */
5150 /* Get the initial path. */
5159 /* If this is a duplicate, skip it. */
5160 skip = (last_path != 0 && p - this_path == last_path_len
5161 && ! strncmp (last_path, this_path, last_path_len));
5163 last_path = this_path;
5164 last_path_len = p - this_path;
5166 /* If this directory requires any default arguments, we can skip
5167 it. We will already have printed a directory identical to
5168 this one which does not require that default argument. */
5186 while (*q != ' ' && *q != ';')
5194 && default_arg (arg, q - arg))
5209 for (p1 = last_path; p1 < p; p1++)
5228 use_arg = *p != '!';
5233 while (*p != ' ' && *p != ';')
5248 /* If there are extra options, print them now */
5249 if (multilib_extra && *multilib_extra)
5251 int print_at = TRUE;
5254 for (q = multilib_extra; *q != '\0'; q++)