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 };
517 struct user_specs *next;
521 static struct user_specs *user_specs_head, *user_specs_tail;
523 /* This defines which switch letters take arguments. */
525 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
526 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
527 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
528 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
529 || (CHAR) == 'L' || (CHAR) == 'A')
531 #ifndef SWITCH_TAKES_ARG
532 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
535 /* This defines which multi-letter switches take arguments. */
537 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
538 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
539 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
540 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
541 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
542 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
543 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
545 #ifndef WORD_SWITCH_TAKES_ARG
546 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
549 /* Record the mapping from file suffixes for compilation specs. */
553 char *suffix; /* Use this compiler for input files
554 whose names end in this suffix. */
556 char *spec[4]; /* To use this compiler, concatenate these
557 specs and pass to do_spec. */
560 /* Pointer to a vector of `struct compiler' that gives the spec for
561 compiling a file, based on its suffix.
562 A file that does not end in any of these suffixes will be passed
563 unchanged to the loader and nothing else will be done to it.
565 An entry containing two 0s is used to terminate the vector.
567 If multiple entries match a file, the last matching one is used. */
569 static struct compiler *compilers;
571 /* Number of entries in `compilers', not counting the null terminator. */
573 static int n_compilers;
575 /* The default list of file name suffixes and their compilation specs. */
577 static struct compiler default_compilers[] =
579 /* Add lists of suffixes of known languages here. If those languages
580 were no present when we built the driver, we will hit these copies
581 and given a more meaningful error than "file not used since
582 linking is not done". */
583 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
584 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
585 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
586 {".fpp", "#Fortran"},
587 /* Next come the entries for C. */
590 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
591 %{C:%{!E:%eGNU C does not support -C without using -E}}\
592 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
593 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
594 %{ansi:-trigraphs -D__STRICT_ANSI__}\
595 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
596 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
597 %{traditional-cpp:-traditional}\
598 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
599 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
600 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
601 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
602 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
603 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
605 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
606 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
608 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
609 %{!pipe:%g.s} %A\n }}}}"},
611 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
612 %{C:%{!E:%eGNU C does not support -C without using -E}}\
613 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
614 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
615 %{ansi:-trigraphs -D__STRICT_ANSI__}\
616 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
617 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
618 %{traditional-cpp:-traditional}\
619 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
621 %{!E:%e-E required when input is from standard input}"},
622 {".m", "@objective-c"},
624 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
625 %{C:%{!E:%eGNU C does not support -C without using -E}}\
626 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
627 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
628 %{ansi:-trigraphs -D__STRICT_ANSI__}\
629 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
630 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
631 %{traditional-cpp:-traditional}\
632 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
633 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
634 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
635 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
636 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
637 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
638 -lang-objc %{gen-decls} \
640 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
641 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
643 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
644 %{!pipe:%g.s} %A\n }}}}"},
647 "%{!E:%eCompilation of header file requested} \
648 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
649 %{C:%{!E:%eGNU C does not support -C without using -E}}\
650 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
651 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
652 %{ansi:-trigraphs -D__STRICT_ANSI__}\
653 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
654 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
655 %{traditional-cpp:-traditional}\
656 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
658 {".i", "@cpp-output"},
660 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
661 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
662 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
664 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
665 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
667 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
668 %{!pipe:%g.s} %A\n }}}}"},
669 {".s", "@assembler"},
671 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
672 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
674 {".S", "@assembler-with-cpp"},
675 {"@assembler-with-cpp",
676 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
677 %{C:%{!E:%eGNU C does not support -C without using -E}}\
678 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
679 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
680 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
681 %{traditional-cpp:-traditional}\
682 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
683 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
684 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
685 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
686 %{!pipe:%g.s} %A\n }}}}"},
688 /* Mark end of table */
692 /* Number of elements in default_compilers, not counting the terminator. */
694 static int n_default_compilers
695 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
697 /* Here is the spec for running the linker, after compiling all files. */
699 /* -u* was put back because both BSD and SysV seem to support it. */
700 /* %{static:} simply prevents an error message if the target machine
701 doesn't handle -static. */
702 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
703 scripts which exist in user specified directories, or in standard
705 #ifdef LINK_LIBGCC_SPECIAL
706 /* Don't generate -L options. */
707 static char *link_command_spec = "\
709 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
710 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
711 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
713 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
714 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
719 static char *link_command_spec = "\
721 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
722 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
723 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
724 %{static:} %{L*} %D %o\
725 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
726 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
731 /* A vector of options to give to the linker.
732 These options are accumulated by %x,
733 and substituted into the linker command with %X. */
734 static int n_linker_options;
735 static char **linker_options;
737 /* A vector of options to give to the assembler.
738 These options are accumulated by -Wa,
739 and substituted into the assembler command with %Y. */
740 static int n_assembler_options;
741 static char **assembler_options;
743 /* A vector of options to give to the preprocessor.
744 These options are accumulated by -Wp,
745 and substituted into the preprocessor command with %Z. */
746 static int n_preprocessor_options;
747 static char **preprocessor_options;
749 /* Define how to map long options into short ones. */
751 /* This structure describes one mapping. */
754 /* The long option's name. */
756 /* The equivalent short option. */
758 /* Argument info. A string of flag chars; NULL equals no options.
759 a => argument required.
760 o => argument optional.
761 j => join argument to equivalent, making one word.
762 * => require other text after NAME as an argument. */
766 /* This is the table of mappings. Mappings are tried sequentially
767 for each option encountered; the first one that matches, wins. */
769 struct option_map option_map[] =
771 {"--all-warnings", "-Wall", 0},
772 {"--ansi", "-ansi", 0},
773 {"--assemble", "-S", 0},
774 {"--assert", "-A", "a"},
775 {"--comments", "-C", 0},
776 {"--compile", "-c", 0},
777 {"--debug", "-g", "oj"},
778 {"--define-macro", "-D", "a"},
779 {"--dependencies", "-M", 0},
780 {"--dump", "-d", "a"},
781 {"--dumpbase", "-dumpbase", "a"},
782 {"--entry", "-e", 0},
783 {"--extra-warnings", "-W", 0},
784 {"--for-assembler", "-Wa", "a"},
785 {"--for-linker", "-Xlinker", "a"},
786 {"--force-link", "-u", "a"},
787 {"--imacros", "-imacros", "a"},
788 {"--include", "-include", "a"},
789 {"--include-barrier", "-I-", 0},
790 {"--include-directory", "-I", "a"},
791 {"--include-directory-after", "-idirafter", "a"},
792 {"--include-prefix", "-iprefix", "a"},
793 {"--include-with-prefix", "-iwithprefix", "a"},
794 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
795 {"--include-with-prefix-after", "-iwithprefix", "a"},
796 {"--language", "-x", "a"},
797 {"--library-directory", "-L", "a"},
798 {"--machine", "-m", "aj"},
799 {"--machine-", "-m", "*j"},
800 {"--no-line-commands", "-P", 0},
801 {"--no-precompiled-includes", "-noprecomp", 0},
802 {"--no-standard-includes", "-nostdinc", 0},
803 {"--no-standard-libraries", "-nostdlib", 0},
804 {"--no-warnings", "-w", 0},
805 {"--optimize", "-O", "oj"},
806 {"--output", "-o", "a"},
807 {"--pedantic", "-pedantic", 0},
808 {"--pedantic-errors", "-pedantic-errors", 0},
809 {"--pipe", "-pipe", 0},
810 {"--prefix", "-B", "a"},
811 {"--preprocess", "-E", 0},
812 {"--print-search-dirs", "-print-search-dirs", 0},
813 {"--print-file-name", "-print-file-name=", "aj"},
814 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
815 {"--print-missing-file-dependencies", "-MG", 0},
816 {"--print-multi-lib", "-print-multi-lib", 0},
817 {"--print-multi-directory", "-print-multi-directory", 0},
818 {"--print-prog-name", "-print-prog-name=", "aj"},
819 {"--profile", "-p", 0},
820 {"--profile-blocks", "-a", 0},
821 {"--quiet", "-q", 0},
822 {"--save-temps", "-save-temps", 0},
823 {"--shared", "-shared", 0},
824 {"--silent", "-q", 0},
825 {"--specs", "-specs=", "aj"},
826 {"--static", "-static", 0},
827 {"--symbolic", "-symbolic", 0},
828 {"--target", "-b", "a"},
829 {"--trace-includes", "-H", 0},
830 {"--traditional", "-traditional", 0},
831 {"--traditional-cpp", "-traditional-cpp", 0},
832 {"--trigraphs", "-trigraphs", 0},
833 {"--undefine-macro", "-U", "a"},
834 {"--use-version", "-V", "a"},
835 {"--user-dependencies", "-MM", 0},
836 {"--verbose", "-v", 0},
837 {"--version", "-dumpversion", 0},
838 {"--warn-", "-W", "*j"},
839 {"--write-dependencies", "-MD", 0},
840 {"--write-user-dependencies", "-MMD", 0},
844 /* Translate the options described by *ARGCP and *ARGVP.
845 Make a new vector and store it back in *ARGVP,
846 and store its length in *ARGVC. */
849 translate_options (argcp, argvp)
855 char **argv = *argvp;
856 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
860 newv[newindex++] = argv[i++];
864 /* Translate -- options. */
865 if (argv[i][0] == '-' && argv[i][1] == '-')
867 /* Find a mapping that applies to this option. */
868 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
870 int optlen = strlen (option_map[j].name);
871 int arglen = strlen (argv[i]);
872 int complen = arglen > optlen ? optlen : arglen;
873 char *arginfo = option_map[j].arg_info;
878 if (!strncmp (argv[i], option_map[j].name, complen))
885 k < sizeof (option_map) / sizeof (option_map[0]);
887 if (strlen (option_map[k].name) >= arglen
888 && !strncmp (argv[i], option_map[k].name, arglen))
890 error ("Ambiguous abbreviation %s", argv[i]);
894 if (k != sizeof (option_map) / sizeof (option_map[0]))
900 /* If the option has an argument, accept that. */
901 if (argv[i][optlen] == '=')
902 arg = argv[i] + optlen + 1;
904 /* If this mapping requires extra text at end of name,
905 accept that as "argument". */
906 else if (index (arginfo, '*') != 0)
907 arg = argv[i] + optlen;
909 /* Otherwise, extra text at end means mismatch.
910 Try other mappings. */
915 else if (index (arginfo, '*') != 0)
917 error ("Incomplete `%s' option", option_map[j].name);
921 /* Handle arguments. */
922 if (index (arginfo, 'a') != 0)
928 error ("Missing argument to `%s' option",
936 else if (index (arginfo, '*') != 0)
938 else if (index (arginfo, 'o') == 0)
941 error ("Extraneous argument to `%s' option",
946 /* Store the translation as one argv elt or as two. */
947 if (arg != 0 && index (arginfo, 'j') != 0)
948 newv[newindex++] = concat (option_map[j].equivalent, arg,
952 newv[newindex++] = option_map[j].equivalent;
953 newv[newindex++] = arg;
956 newv[newindex++] = option_map[j].equivalent;
964 /* Handle old-fashioned options--just copy them through,
965 with their arguments. */
966 else if (argv[i][0] == '-')
968 char *p = argv[i] + 1;
972 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
973 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
974 else if (WORD_SWITCH_TAKES_ARG (p))
975 nskip += WORD_SWITCH_TAKES_ARG (p);
976 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
979 else if (! strcmp (p, "Xlinker"))
982 /* Watch out for an option at the end of the command line that
983 is missing arguments, and avoid skipping past the end of the
985 if (nskip + i > argc)
990 newv[newindex++] = argv[i++];
995 /* Ordinary operands, or +e options. */
996 newv[newindex++] = argv[i++];
1009 #ifdef HAVE_STRERROR
1015 static char buffer[30];
1017 return "cannot access";
1019 if (e > 0 && e < sys_nerr)
1020 return sys_errlist[e];
1022 sprintf (buffer, "Unknown error %d", e);
1027 /* Read compilation specs from a file named FILENAME,
1028 replacing the default ones.
1030 A suffix which starts with `*' is a definition for
1031 one of the machine-specific sub-specs. The "suffix" should be
1032 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1033 The corresponding spec is stored in asm_spec, etc.,
1034 rather than in the `compilers' vector.
1036 Anything invalid in the file is a fatal error. */
1039 read_specs (filename)
1044 struct stat statbuf;
1049 fprintf (stderr, "Reading specs from %s\n", filename);
1051 /* Open and stat the file. */
1052 desc = open (filename, O_RDONLY, 0);
1054 pfatal_with_name (filename);
1055 if (stat (filename, &statbuf) < 0)
1056 pfatal_with_name (filename);
1058 /* Read contents of file into BUFFER. */
1059 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1060 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1062 pfatal_with_name (filename);
1063 buffer[readlen] = 0;
1066 /* Scan BUFFER for specs, putting them in the vector. */
1072 char *in, *out, *p1, *p2;
1074 /* Advance P in BUFFER to the next nonblank nocomment line. */
1075 p = skip_whitespace (p);
1079 /* Find the colon that should end the suffix. */
1081 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1082 /* The colon shouldn't be missing. */
1084 fatal ("specs file malformed after %d characters", p1 - buffer);
1085 /* Skip back over trailing whitespace. */
1087 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1088 /* Copy the suffix to a string. */
1089 suffix = save_string (p, p2 - p);
1090 /* Find the next line. */
1091 p = skip_whitespace (p1 + 1);
1093 fatal ("specs file malformed after %d characters", p - buffer);
1095 /* Find next blank line. */
1096 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1097 /* Specs end at the blank line and do not include the newline. */
1098 spec = save_string (p, p1 - p);
1101 /* Delete backslash-newline sequences from the spec. */
1106 if (in[0] == '\\' && in[1] == '\n')
1108 else if (in[0] == '#')
1110 while (*in && *in != '\n') in++;
1117 if (suffix[0] == '*')
1119 if (! strcmp (suffix, "*link_command"))
1120 link_command_spec = spec;
1122 set_spec (suffix + 1, spec);
1126 /* Add this pair to the vector. */
1128 = ((struct compiler *)
1129 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1130 compilers[n_compilers].suffix = suffix;
1131 bzero ((char *) compilers[n_compilers].spec,
1132 sizeof compilers[n_compilers].spec);
1133 compilers[n_compilers].spec[0] = spec;
1135 bzero ((char *) &compilers[n_compilers],
1136 sizeof compilers[n_compilers]);
1140 link_command_spec = spec;
1143 if (link_command_spec == 0)
1144 fatal ("spec file has no spec for linking");
1153 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1154 be considered whitespace. */
1155 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1157 else if (*p == '\n' || *p == ' ' || *p == '\t')
1161 while (*p != '\n') p++;
1171 /* Structure to keep track of the specs that have been defined so far.
1172 These are accessed using %(specname) or %[specname] in a compiler
1177 char *name; /* Name of the spec. */
1178 char *spec; /* The spec itself. */
1179 struct spec_list *next; /* Next spec in linked list. */
1182 /* List of specs that have been defined so far. */
1184 static struct spec_list *specs = (struct spec_list *) 0;
1186 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1187 removed; If the spec starts with a + then SPEC is added to the end of the
1191 set_spec (name, spec)
1195 struct spec_list *sl;
1198 /* See if the spec already exists */
1199 for (sl = specs; sl; sl = sl->next)
1200 if (strcmp (sl->name, name) == 0)
1205 /* Not found - make it */
1206 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1207 sl->name = save_string (name, strlen (name));
1208 sl->spec = save_string ("", 0);
1213 old_spec = sl->spec;
1214 if (name && spec[0] == '+' && isspace (spec[1]))
1215 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1217 sl->spec = save_string (spec, strlen (spec));
1219 if (! strcmp (name, "asm"))
1220 asm_spec = sl->spec;
1221 else if (! strcmp (name, "asm_final"))
1222 asm_final_spec = sl->spec;
1223 else if (! strcmp (name, "cc1"))
1224 cc1_spec = sl->spec;
1225 else if (! strcmp (name, "cc1plus"))
1226 cc1plus_spec = sl->spec;
1227 else if (! strcmp (name, "cpp"))
1228 cpp_spec = sl->spec;
1229 else if (! strcmp (name, "endfile"))
1230 endfile_spec = sl->spec;
1231 else if (! strcmp (name, "lib"))
1232 lib_spec = sl->spec;
1233 else if (! strcmp (name, "libgcc"))
1234 libgcc_spec = sl->spec;
1235 else if (! strcmp (name, "link"))
1236 link_spec = sl->spec;
1237 else if (! strcmp (name, "predefines"))
1238 cpp_predefines = sl->spec;
1239 else if (! strcmp (name, "signed_char"))
1240 signed_char_spec = sl->spec;
1241 else if (! strcmp (name, "startfile"))
1242 startfile_spec = sl->spec;
1243 else if (! strcmp (name, "switches_need_spaces"))
1244 switches_need_spaces = sl->spec;
1245 else if (! strcmp (name, "cross_compile"))
1246 cross_compile = atoi (sl->spec);
1247 else if (! strcmp (name, "multilib"))
1248 multilib_select = sl->spec;
1249 else if (! strcmp (name, "multilib_matches"))
1250 multilib_matches = sl->spec;
1251 else if (! strcmp (name, "multilib_extra"))
1252 multilib_extra = sl->spec;
1253 else if (! strcmp (name, "multilib_defaults"))
1254 multilib_defaults = sl->spec;
1255 else if (! strcmp (name, "version"))
1256 compiler_version = sl->spec;
1261 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1263 if (! strcmp (name, extra_specs[i].name))
1265 extra_specs[i].spec = sl->spec;
1272 /* Free the old spec */
1277 /* Accumulate a command (program name and args), and run it. */
1279 /* Vector of pointers to arguments in the current line of specifications. */
1281 static char **argbuf;
1283 /* Number of elements allocated in argbuf. */
1285 static int argbuf_length;
1287 /* Number of elements in argbuf currently in use (containing args). */
1289 static int argbuf_index;
1291 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1292 temp file. Used only if MKTEMP_EACH_FILE. */
1294 static struct temp_name {
1295 char *suffix; /* suffix associated with the code. */
1296 int length; /* strlen (suffix). */
1297 int unique; /* Indicates whether %g or %u/%U was used. */
1298 char *filename; /* associated filename. */
1299 int filename_length; /* strlen (filename). */
1300 struct temp_name *next;
1303 /* Number of commands executed so far. */
1305 static int execution_count;
1307 /* Number of commands that exited with a signal. */
1309 static int signal_count;
1311 /* Name with which this program was invoked. */
1313 static char *programname;
1315 /* Structures to keep track of prefixes to try when looking for files. */
1319 char *prefix; /* String to prepend to the path. */
1320 struct prefix_list *next; /* Next in linked list. */
1321 int require_machine_suffix; /* Don't use without machine_suffix. */
1322 /* 2 means try both machine_suffix and just_machine_suffix. */
1323 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1328 struct prefix_list *plist; /* List of prefixes to try */
1329 int max_len; /* Max length of a prefix in PLIST */
1330 char *name; /* Name of this list (used in config stuff) */
1333 /* List of prefixes to try when looking for executables. */
1335 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1337 /* List of prefixes to try when looking for startup (crt0) files. */
1339 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1341 /* List of prefixes to try when looking for include files. */
1343 static struct path_prefix include_prefixes = { 0, 0, "include" };
1345 /* Suffix to attach to directories searched for commands.
1346 This looks like `MACHINE/VERSION/'. */
1348 static char *machine_suffix = 0;
1350 /* Suffix to attach to directories searched for commands.
1351 This is just `MACHINE/'. */
1353 static char *just_machine_suffix = 0;
1355 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1357 static char *gcc_exec_prefix;
1359 /* Default prefixes to attach to command names. */
1361 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1362 #undef MD_EXEC_PREFIX
1363 #undef MD_STARTFILE_PREFIX
1364 #undef MD_STARTFILE_PREFIX_1
1367 #ifndef STANDARD_EXEC_PREFIX
1368 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1369 #endif /* !defined STANDARD_EXEC_PREFIX */
1371 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1372 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1373 #ifdef MD_EXEC_PREFIX
1374 static char *md_exec_prefix = MD_EXEC_PREFIX;
1377 #ifndef STANDARD_STARTFILE_PREFIX
1378 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1379 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1381 #ifdef MD_STARTFILE_PREFIX
1382 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1384 #ifdef MD_STARTFILE_PREFIX_1
1385 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1387 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1388 static char *standard_startfile_prefix_1 = "/lib/";
1389 static char *standard_startfile_prefix_2 = "/usr/lib/";
1391 #ifndef TOOLDIR_BASE_PREFIX
1392 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1394 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1395 static char *tooldir_prefix;
1397 /* Subdirectory to use for locating libraries. Set by
1398 set_multilib_dir based on the compilation options. */
1400 static char *multilib_dir;
1402 /* Clear out the vector of arguments (after a command is executed). */
1410 /* Add one argument to the vector at the end.
1411 This is done when a space is seen or at the end of the line.
1412 If DELETE_ALWAYS is nonzero, the arg is a filename
1413 and the file should be deleted eventually.
1414 If DELETE_FAILURE is nonzero, the arg is a filename
1415 and the file should be deleted if this compilation fails. */
1418 store_arg (arg, delete_always, delete_failure)
1420 int delete_always, delete_failure;
1422 if (argbuf_index + 1 == argbuf_length)
1424 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1427 argbuf[argbuf_index++] = arg;
1428 argbuf[argbuf_index] = 0;
1430 if (delete_always || delete_failure)
1431 record_temp_file (arg, delete_always, delete_failure);
1434 /* Record the names of temporary files we tell compilers to write,
1435 and delete them at the end of the run. */
1437 /* This is the common prefix we use to make temp file names.
1438 It is chosen once for each run of this program.
1439 It is substituted into a spec by %g.
1440 Thus, all temp file names contain this prefix.
1441 In practice, all temp file names start with this prefix.
1443 This prefix comes from the envvar TMPDIR if it is defined;
1444 otherwise, from the P_tmpdir macro if that is defined;
1445 otherwise, in /usr/tmp or /tmp;
1446 or finally the current directory if all else fails. */
1448 static char *temp_filename;
1450 /* Length of the prefix. */
1452 static int temp_filename_length;
1454 /* Define the list of temporary files to delete. */
1459 struct temp_file *next;
1462 /* Queue of files to delete on success or failure of compilation. */
1463 static struct temp_file *always_delete_queue;
1464 /* Queue of files to delete on failure of compilation. */
1465 static struct temp_file *failure_delete_queue;
1467 /* Record FILENAME as a file to be deleted automatically.
1468 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1469 otherwise delete it in any case.
1470 FAIL_DELETE nonzero means delete it if a compilation step fails;
1471 otherwise delete it in any case. */
1474 record_temp_file (filename, always_delete, fail_delete)
1479 register char *name;
1480 name = xmalloc (strlen (filename) + 1);
1481 strcpy (name, filename);
1485 register struct temp_file *temp;
1486 for (temp = always_delete_queue; temp; temp = temp->next)
1487 if (! strcmp (name, temp->name))
1489 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1490 temp->next = always_delete_queue;
1492 always_delete_queue = temp;
1498 register struct temp_file *temp;
1499 for (temp = failure_delete_queue; temp; temp = temp->next)
1500 if (! strcmp (name, temp->name))
1502 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1503 temp->next = failure_delete_queue;
1505 failure_delete_queue = temp;
1510 /* Delete all the temporary files whose names we previously recorded. */
1513 delete_if_ordinary (name)
1520 printf ("Delete %s? (y or n) ", name);
1524 while ((c = getchar ()) != '\n' && c != EOF) ;
1525 if (i == 'y' || i == 'Y')
1527 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1528 if (unlink (name) < 0)
1530 perror_with_name (name);
1534 delete_temp_files ()
1536 register struct temp_file *temp;
1538 for (temp = always_delete_queue; temp; temp = temp->next)
1539 delete_if_ordinary (temp->name);
1540 always_delete_queue = 0;
1543 /* Delete all the files to be deleted on error. */
1546 delete_failure_queue ()
1548 register struct temp_file *temp;
1550 for (temp = failure_delete_queue; temp; temp = temp->next)
1551 delete_if_ordinary (temp->name);
1555 clear_failure_queue ()
1557 failure_delete_queue = 0;
1560 /* Routine to add variables to the environment. We do this to pass
1561 the pathname of the gcc driver, and the directories search to the
1562 collect2 program, which is being run as ld. This way, we can be
1563 sure of executing the right compiler when collect2 wants to build
1564 constructors and destructors. Since the environment variables we
1565 use come from an obstack, we don't have to worry about allocating
1574 #ifndef VMS /* nor about VMS */
1576 extern char **environ;
1577 char **old_environ = environ;
1581 int str_len = strlen (str);
1585 while ((ch = *p++) != '\0' && ch != '=')
1591 /* Search for replacing an existing environment variable, and
1592 count the number of total environment variables. */
1593 for (envp = old_environ; *envp; envp++)
1596 if (!strncmp (str, *envp, name_len))
1603 /* Add a new environment variable */
1604 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1606 bcopy ((char *) old_environ, (char *) (environ + 1),
1607 sizeof (char *) * (num_envs+1));
1612 #endif /* HAVE_PUTENV */
1615 /* Build a list of search directories from PATHS.
1616 PREFIX is a string to prepend to the list.
1617 If CHECK_DIR_P is non-zero we ensure the directory exists.
1618 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1619 It is also used by the --print-search-dirs flag. */
1622 build_search_list (paths, prefix, check_dir_p)
1623 struct path_prefix *paths;
1627 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1629 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1630 int first_time = TRUE;
1631 struct prefix_list *pprefix;
1633 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1635 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1637 int len = strlen (pprefix->prefix);
1641 || is_directory (pprefix->prefix, machine_suffix, 0)))
1644 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1647 obstack_grow (&collect_obstack, pprefix->prefix, len);
1648 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1651 if (just_machine_suffix
1652 && pprefix->require_machine_suffix == 2
1654 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1657 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1660 obstack_grow (&collect_obstack, pprefix->prefix, len);
1661 obstack_grow (&collect_obstack, just_machine_suffix,
1665 if (!pprefix->require_machine_suffix)
1668 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1671 obstack_grow (&collect_obstack, pprefix->prefix, len);
1674 obstack_1grow (&collect_obstack, '\0');
1675 return obstack_finish (&collect_obstack);
1678 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1682 putenv_from_prefixes (paths, env_var)
1683 struct path_prefix *paths;
1686 putenv (build_search_list (paths, env_var, 1));
1689 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1690 access to check permissions.
1691 Return 0 if not found, otherwise return its name, allocated with malloc. */
1694 find_a_file (pprefix, name, mode)
1695 struct path_prefix *pprefix;
1700 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1701 struct prefix_list *pl;
1702 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1705 len += strlen (machine_suffix);
1707 temp = xmalloc (len);
1709 /* Determine the filename to execute (special case for absolute paths). */
1711 if (*name == '/' || *name == DIR_SEPARATOR)
1713 if (access (name, mode))
1715 strcpy (temp, name);
1720 for (pl = pprefix->plist; pl; pl = pl->next)
1724 /* Some systems have a suffix for executable files.
1725 So try appending that first. */
1726 if (file_suffix[0] != 0)
1728 strcpy (temp, pl->prefix);
1729 strcat (temp, machine_suffix);
1730 strcat (temp, name);
1731 strcat (temp, file_suffix);
1732 if (access (temp, mode) == 0)
1734 if (pl->used_flag_ptr != 0)
1735 *pl->used_flag_ptr = 1;
1740 /* Now try just the name. */
1741 strcpy (temp, pl->prefix);
1742 strcat (temp, machine_suffix);
1743 strcat (temp, name);
1744 if (access (temp, mode) == 0)
1746 if (pl->used_flag_ptr != 0)
1747 *pl->used_flag_ptr = 1;
1752 /* Certain prefixes are tried with just the machine type,
1753 not the version. This is used for finding as, ld, etc. */
1754 if (just_machine_suffix && pl->require_machine_suffix == 2)
1756 /* Some systems have a suffix for executable files.
1757 So try appending that first. */
1758 if (file_suffix[0] != 0)
1760 strcpy (temp, pl->prefix);
1761 strcat (temp, just_machine_suffix);
1762 strcat (temp, name);
1763 strcat (temp, file_suffix);
1764 if (access (temp, mode) == 0)
1766 if (pl->used_flag_ptr != 0)
1767 *pl->used_flag_ptr = 1;
1772 strcpy (temp, pl->prefix);
1773 strcat (temp, just_machine_suffix);
1774 strcat (temp, name);
1775 if (access (temp, mode) == 0)
1777 if (pl->used_flag_ptr != 0)
1778 *pl->used_flag_ptr = 1;
1783 /* Certain prefixes can't be used without the machine suffix
1784 when the machine or version is explicitly specified. */
1785 if (!pl->require_machine_suffix)
1787 /* Some systems have a suffix for executable files.
1788 So try appending that first. */
1789 if (file_suffix[0] != 0)
1791 strcpy (temp, pl->prefix);
1792 strcat (temp, name);
1793 strcat (temp, file_suffix);
1794 if (access (temp, mode) == 0)
1796 if (pl->used_flag_ptr != 0)
1797 *pl->used_flag_ptr = 1;
1802 strcpy (temp, pl->prefix);
1803 strcat (temp, name);
1804 if (access (temp, mode) == 0)
1806 if (pl->used_flag_ptr != 0)
1807 *pl->used_flag_ptr = 1;
1817 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1818 at the start of the list, otherwise it goes at the end.
1820 If WARN is nonzero, we will warn if no file is found
1821 through this prefix. WARN should point to an int
1822 which will be set to 1 if this entry is used.
1824 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1825 the complete value of machine_suffix.
1826 2 means try both machine_suffix and just_machine_suffix. */
1829 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1830 struct path_prefix *pprefix;
1833 int require_machine_suffix;
1836 struct prefix_list *pl, **prev;
1839 if (!first && pprefix->plist)
1841 for (pl = pprefix->plist; pl->next; pl = pl->next)
1846 prev = &pprefix->plist;
1848 /* Keep track of the longest prefix */
1850 len = strlen (prefix);
1851 if (len > pprefix->max_len)
1852 pprefix->max_len = len;
1854 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1855 pl->prefix = save_string (prefix, len);
1856 pl->require_machine_suffix = require_machine_suffix;
1857 pl->used_flag_ptr = warn;
1864 pl->next = (struct prefix_list *) 0;
1868 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1871 unused_prefix_warnings (pprefix)
1872 struct path_prefix *pprefix;
1874 struct prefix_list *pl = pprefix->plist;
1878 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1880 if (pl->require_machine_suffix && machine_suffix)
1881 error ("file path prefix `%s%s' never used", pl->prefix,
1884 error ("file path prefix `%s' never used", pl->prefix);
1886 /* Prevent duplicate warnings. */
1887 *pl->used_flag_ptr = 1;
1893 /* Get rid of all prefixes built up so far in *PLISTP. */
1896 free_path_prefix (pprefix)
1897 struct path_prefix *pprefix;
1899 struct prefix_list *pl = pprefix->plist;
1900 struct prefix_list *temp;
1906 free (temp->prefix);
1907 free ((char *) temp);
1909 pprefix->plist = (struct prefix_list *) 0;
1912 /* Execute the command specified by the arguments on the current line of spec.
1913 When using pipes, this includes several piped-together commands
1914 with `|' between them.
1916 Return 0 if successful, -1 if failed. */
1922 int n_commands; /* # of command. */
1926 char *prog; /* program name. */
1927 char **argv; /* vector of args. */
1928 int pid; /* pid of process for this command. */
1931 struct command *commands; /* each command buffer with above info. */
1933 /* Count # of piped commands. */
1934 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1935 if (strcmp (argbuf[i], "|") == 0)
1938 /* Get storage for each command. */
1940 = (struct command *) alloca (n_commands * sizeof (struct command));
1942 /* Split argbuf into its separate piped processes,
1943 and record info about each one.
1944 Also search for the programs that are to be run. */
1946 commands[0].prog = argbuf[0]; /* first command. */
1947 commands[0].argv = &argbuf[0];
1948 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1950 commands[0].argv[0] = string;
1952 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1953 if (strcmp (argbuf[i], "|") == 0)
1954 { /* each command. */
1955 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1956 fatal ("-pipe not supported");
1958 argbuf[i] = 0; /* termination of command args. */
1959 commands[n_commands].prog = argbuf[i + 1];
1960 commands[n_commands].argv = &argbuf[i + 1];
1961 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1963 commands[n_commands].argv[0] = string;
1967 argbuf[argbuf_index] = 0;
1969 /* If -v, print what we are about to do, and maybe query. */
1973 /* Print each piped command as a separate line. */
1974 for (i = 0; i < n_commands ; i++)
1978 for (j = commands[i].argv; *j; j++)
1979 fprintf (stderr, " %s", *j);
1981 /* Print a pipe symbol after all but the last command. */
1982 if (i + 1 != n_commands)
1983 fprintf (stderr, " |");
1984 fprintf (stderr, "\n");
1988 fprintf (stderr, "\nGo ahead? (y or n) ");
1992 while (getchar () != '\n') ;
1993 if (i != 'y' && i != 'Y')
1998 /* Run each piped subprocess. */
2000 for (i = 0; i < n_commands; i++)
2002 char *errmsg_fmt, *errmsg_arg;
2003 char *string = commands[i].argv[0];
2005 commands[i].pid = pexecute (string, commands[i].argv,
2006 programname, temp_filename,
2007 &errmsg_fmt, &errmsg_arg,
2008 ((i == 0 ? PEXECUTE_FIRST : 0)
2009 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2010 | (string == commands[i].prog
2011 ? PEXECUTE_SEARCH : 0)
2012 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2014 if (commands[i].pid == -1)
2015 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2017 if (string != commands[i].prog)
2023 /* Wait for all the subprocesses to finish.
2024 We don't care what order they finish in;
2025 we know that N_COMMANDS waits will get them all.
2026 Ignore subprocesses that we don't know about,
2027 since they can be spawned by the process that exec'ed us. */
2032 for (i = 0; i < n_commands; )
2038 pid = pwait (commands[i].pid, &status, 0);
2042 for (j = 0; j < n_commands; j++)
2043 if (commands[j].pid == pid)
2048 if (WIFSIGNALED (status))
2050 fatal ("Internal compiler error: program %s got fatal signal %d",
2051 commands[j].prog, WTERMSIG (status));
2055 else if (WIFEXITED (status)
2056 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2066 /* Find all the switches given to us
2067 and make a vector describing them.
2068 The elements of the vector are strings, one per switch given.
2069 If a switch uses following arguments, then the `part1' field
2070 is the switch itself and the `args' field
2071 is a null-terminated vector containing the following arguments.
2072 The `live_cond' field is 1 if the switch is true in a conditional spec,
2073 -1 if false (overridden by a later switch), and is initialized to zero.
2074 The `valid' field is nonzero if any spec has looked at this switch;
2075 if it remains zero at the end of the run, it must be meaningless. */
2085 static struct switchstr *switches;
2087 static int n_switches;
2095 /* Also a vector of input files specified. */
2097 static struct infile *infiles;
2099 static int n_infiles;
2101 /* And a vector of corresponding output files is made up later. */
2103 static char **outfiles;
2105 /* Used to track if none of the -B paths are used. */
2108 /* Used to track if standard path isn't used and -b or -V is specified. */
2109 static int warn_std;
2111 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2112 static int *warn_std_ptr = 0;
2115 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2117 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2118 is true if we should look for an executable suffix as well. */
2121 convert_filename (name, do_exe)
2126 int len = strlen (name);
2128 #ifdef HAVE_OBJECT_SUFFIX
2129 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2131 && name[len - 2] == '.'
2132 && name[len - 1] == 'o')
2134 obstack_grow (&obstack, name[i], len - 2);
2135 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2136 name = obstack_finish (&obstack);
2140 #ifdef HAVE_EXECUTABLE_SUFFIX
2141 /* If there is no filetype, make it the executable suffix (which includes
2142 the "."). But don't get confused if we have just "-o". */
2143 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2146 for (i = len - 1; i >= 0; i--)
2147 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2150 for (i++; i < len; i++)
2154 obstack_grow (&obstack, name, len);
2155 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2156 name = obstack_finish (&obstack);
2163 /* Create the vector `switches' and its contents.
2164 Store its length in `n_switches'. */
2167 process_command (argc, argv)
2173 char *spec_lang = 0;
2174 int last_language_n_infiles;
2177 int lang_n_infiles = 0;
2179 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2184 /* Figure compiler version from version string. */
2186 compiler_version = save_string (version_string, strlen (version_string));
2187 for (temp = compiler_version; *temp; ++temp)
2196 /* Set up the default search paths. */
2198 if (gcc_exec_prefix)
2200 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2201 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2204 /* COMPILER_PATH and LIBRARY_PATH have values
2205 that are lists of directory names with colons. */
2207 temp = getenv ("COMPILER_PATH");
2210 char *startp, *endp;
2211 char *nstore = (char *) alloca (strlen (temp) + 3);
2213 startp = endp = temp;
2216 if (*endp == PATH_SEPARATOR || *endp == 0)
2218 strncpy (nstore, startp, endp-startp);
2220 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2221 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2223 nstore[endp-startp] = DIR_SEPARATOR;
2224 nstore[endp-startp+1] = 0;
2227 nstore[endp-startp] = 0;
2228 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2231 endp = startp = endp + 1;
2238 temp = getenv ("LIBRARY_PATH");
2239 if (temp && ! cross_compile)
2241 char *startp, *endp;
2242 char *nstore = (char *) alloca (strlen (temp) + 3);
2244 startp = endp = temp;
2247 if (*endp == PATH_SEPARATOR || *endp == 0)
2249 strncpy (nstore, startp, endp-startp);
2251 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2252 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2254 nstore[endp-startp] = DIR_SEPARATOR;
2255 nstore[endp-startp+1] = 0;
2258 nstore[endp-startp] = 0;
2259 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2262 endp = startp = endp + 1;
2269 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2270 temp = getenv ("LPATH");
2271 if (temp && ! cross_compile)
2273 char *startp, *endp;
2274 char *nstore = (char *) alloca (strlen (temp) + 3);
2276 startp = endp = temp;
2279 if (*endp == PATH_SEPARATOR || *endp == 0)
2281 strncpy (nstore, startp, endp-startp);
2283 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2284 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2286 nstore[endp-startp] = DIR_SEPARATOR;
2287 nstore[endp-startp+1] = 0;
2290 nstore[endp-startp] = 0;
2291 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2294 endp = startp = endp + 1;
2301 /* Convert new-style -- options to old-style. */
2302 translate_options (&argc, &argv);
2304 /* Scan argv twice. Here, the first time, just count how many switches
2305 there will be in their vector, and how many input files in theirs.
2306 Here we also parse the switches that cc itself uses (e.g. -v). */
2308 for (i = 1; i < argc; i++)
2310 if (! strcmp (argv[i], "-dumpspecs"))
2312 printf ("*asm:\n%s\n\n", asm_spec);
2313 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2314 printf ("*cpp:\n%s\n\n", cpp_spec);
2315 printf ("*cc1:\n%s\n\n", cc1_spec);
2316 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2317 printf ("*endfile:\n%s\n\n", endfile_spec);
2318 printf ("*link:\n%s\n\n", link_spec);
2319 printf ("*lib:\n%s\n\n", lib_spec);
2320 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2321 printf ("*startfile:\n%s\n\n", startfile_spec);
2322 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2323 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2324 printf ("*predefines:\n%s\n\n", cpp_predefines);
2325 printf ("*cross_compile:\n%d\n\n", cross_compile);
2326 printf ("*version:\n%s\n\n", compiler_version);
2327 printf ("*multilib:\n%s\n\n", multilib_select);
2328 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults);
2329 printf ("*multilib_extra:\n%s\n\n", multilib_extra);
2330 printf ("*multilib_matches:\n%s\n\n", multilib_matches);
2335 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2336 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2337 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2342 else if (! strcmp (argv[i], "-dumpversion"))
2344 printf ("%s\n", version_string);
2347 else if (! strcmp (argv[i], "-dumpmachine"))
2349 printf ("%s\n", spec_machine);
2352 else if (! strcmp (argv[i], "-print-search-dirs"))
2353 print_search_dirs = 1;
2354 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2355 print_file_name = "libgcc.a";
2356 else if (! strncmp (argv[i], "-print-file-name=", 17))
2357 print_file_name = argv[i] + 17;
2358 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2359 print_prog_name = argv[i] + 17;
2360 else if (! strcmp (argv[i], "-print-multi-lib"))
2361 print_multi_lib = 1;
2362 else if (! strcmp (argv[i], "-print-multi-directory"))
2363 print_multi_directory = 1;
2364 else if (! strncmp (argv[i], "-Wa,", 4))
2367 /* Pass the rest of this option to the assembler. */
2369 n_assembler_options++;
2370 if (!assembler_options)
2372 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2375 = (char **) xrealloc (assembler_options,
2376 n_assembler_options * sizeof (char **));
2378 /* Split the argument at commas. */
2380 for (j = 4; argv[i][j]; j++)
2381 if (argv[i][j] == ',')
2383 assembler_options[n_assembler_options - 1]
2384 = save_string (argv[i] + prev, j - prev);
2385 n_assembler_options++;
2387 = (char **) xrealloc (assembler_options,
2388 n_assembler_options * sizeof (char **));
2391 /* Record the part after the last comma. */
2392 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2394 else if (! strncmp (argv[i], "-Wp,", 4))
2397 /* Pass the rest of this option to the preprocessor. */
2399 n_preprocessor_options++;
2400 if (!preprocessor_options)
2401 preprocessor_options
2402 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2404 preprocessor_options
2405 = (char **) xrealloc (preprocessor_options,
2406 n_preprocessor_options * sizeof (char **));
2408 /* Split the argument at commas. */
2410 for (j = 4; argv[i][j]; j++)
2411 if (argv[i][j] == ',')
2413 preprocessor_options[n_preprocessor_options - 1]
2414 = save_string (argv[i] + prev, j - prev);
2415 n_preprocessor_options++;
2416 preprocessor_options
2417 = (char **) xrealloc (preprocessor_options,
2418 n_preprocessor_options * sizeof (char **));
2421 /* Record the part after the last comma. */
2422 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2424 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2425 /* The +e options to the C++ front-end. */
2427 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2430 /* Split the argument at commas. */
2431 for (j = 3; argv[i][j]; j++)
2432 n_infiles += (argv[i][j] == ',');
2434 else if (strcmp (argv[i], "-Xlinker") == 0)
2437 fatal ("argument to `-Xlinker' is missing");
2442 else if (strncmp (argv[i], "-l", 2) == 0)
2444 else if (strcmp (argv[i], "-save-temps") == 0)
2446 save_temps_flag = 1;
2449 else if (strcmp (argv[i], "-specs") == 0)
2451 struct user_specs *user = (struct user_specs *)
2452 xmalloc (sizeof (struct user_specs));
2454 fatal ("argument to `-specs' is missing");
2456 user->next = (struct user_specs *)0;
2457 user->filename = argv[i];
2458 if (user_specs_tail)
2459 user_specs_tail->next = user;
2461 user_specs_head = user;
2462 user_specs_tail = user;
2464 else if (strncmp (argv[i], "-specs=", 7) == 0)
2466 struct user_specs *user = (struct user_specs *)
2467 xmalloc (sizeof (struct user_specs));
2468 if (strlen (argv[i]) == 7)
2469 fatal ("argument to `-specs=' is missing");
2471 user->next = (struct user_specs *)0;
2472 user->filename = argv[i]+7;
2473 if (user_specs_tail)
2474 user_specs_tail->next = user;
2476 user_specs_head = user;
2477 user_specs_tail = user;
2479 else if (argv[i][0] == '-' && argv[i][1] != 0)
2481 register char *p = &argv[i][1];
2482 register int c = *p;
2487 if (p[1] == 0 && i + 1 == argc)
2488 fatal ("argument to `-b' is missing");
2490 spec_machine = argv[++i];
2492 spec_machine = p + 1;
2494 warn_std_ptr = &warn_std;
2499 int *temp = (int *) xmalloc (sizeof (int));
2501 if (p[1] == 0 && i + 1 == argc)
2502 fatal ("argument to `-B' is missing");
2507 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2508 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2509 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2512 /* As a kludge, if the arg is "[foo/]stageN/", just add
2513 "[foo/]include" to the include prefix. */
2515 int len = strlen (value);
2518 && (value[len - 8] == '/'
2519 || value[len - 8] == DIR_SEPARATOR)))
2520 && strncmp (value + len - 7, "stage", 5) == 0
2521 && isdigit (value[len - 2])
2522 && (value[len - 1] == '/'
2523 || value[len - 1] == DIR_SEPARATOR))
2526 add_prefix (&include_prefixes, "include",
2530 char *string = xmalloc (len + 1);
2531 strncpy (string, value, len-7);
2532 strcat (string, "include");
2533 add_prefix (&include_prefixes, string,
2541 case 'v': /* Print our subcommands and print versions. */
2543 /* If they do anything other than exactly `-v', don't set
2544 verbose_flag; rather, continue on to give the error. */
2551 if (p[1] == 0 && i + 1 == argc)
2552 fatal ("argument to `-V' is missing");
2554 spec_version = argv[++i];
2556 spec_version = p + 1;
2557 compiler_version = spec_version;
2558 warn_std_ptr = &warn_std;
2572 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2573 argv[i] = convert_filename (argv[i], 1);
2575 argv[i+1] = convert_filename (argv[i+1], 1);
2583 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2584 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2585 else if (WORD_SWITCH_TAKES_ARG (p))
2586 i += WORD_SWITCH_TAKES_ARG (p);
2596 if (have_c && have_o && lang_n_infiles > 1)
2597 fatal ("cannot specify -o with -c and multiple compilations");
2599 /* Set up the search paths before we go looking for config files. */
2601 /* These come before the md prefixes so that we will find gcc's subcommands
2602 (such as cpp) rather than those of the host system. */
2603 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2604 as well as trying the machine and the version. */
2606 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2607 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2610 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2611 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2613 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2614 dir_separator_str, NULL_PTR);
2616 /* If tooldir is relative, base it on exec_prefixes. A relative
2617 tooldir lets us move the installed tree as a unit.
2619 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2620 directories, so that we can search both the user specified directory
2621 and the standard place. */
2623 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2625 if (gcc_exec_prefix)
2627 char *gcc_exec_tooldir_prefix
2628 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2629 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2631 add_prefix (&exec_prefixes,
2632 concat (gcc_exec_tooldir_prefix, "bin",
2633 dir_separator_str, NULL_PTR),
2635 add_prefix (&startfile_prefixes,
2636 concat (gcc_exec_tooldir_prefix, "lib",
2637 dir_separator_str, NULL_PTR),
2641 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2642 dir_separator_str, spec_version,
2643 dir_separator_str, tooldir_prefix, NULL_PTR);
2646 add_prefix (&exec_prefixes,
2647 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2649 add_prefix (&startfile_prefixes,
2650 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2653 /* More prefixes are enabled in main, after we read the specs file
2654 and determine whether this is cross-compilation or not. */
2657 /* Then create the space for the vectors and scan again. */
2659 switches = ((struct switchstr *)
2660 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2661 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2664 last_language_n_infiles = -1;
2666 /* This, time, copy the text of each switch and store a pointer
2667 to the copy in the vector of switches.
2668 Store all the infiles in their vector. */
2670 for (i = 1; i < argc; i++)
2672 /* Just skip the switches that were handled by the preceding loop. */
2673 if (! strncmp (argv[i], "-Wa,", 4))
2675 else if (! strncmp (argv[i], "-Wp,", 4))
2677 else if (! strcmp (argv[i], "-print-search-dirs"))
2679 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2681 else if (! strncmp (argv[i], "-print-file-name=", 17))
2683 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2685 else if (! strcmp (argv[i], "-print-multi-lib"))
2687 else if (! strcmp (argv[i], "-print-multi-directory"))
2689 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2691 /* Compensate for the +e options to the C++ front-end;
2692 they're there simply for cfront call-compatibility. We do
2693 some magic in default_compilers to pass them down properly.
2694 Note we deliberately start at the `+' here, to avoid passing
2695 -e0 or -e1 down into the linker. */
2696 switches[n_switches].part1 = &argv[i][0];
2697 switches[n_switches].args = 0;
2698 switches[n_switches].live_cond = 0;
2699 switches[n_switches].valid = 0;
2702 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2705 /* Split the argument at commas. */
2707 for (j = 4; argv[i][j]; j++)
2708 if (argv[i][j] == ',')
2710 infiles[n_infiles].language = 0;
2711 infiles[n_infiles++].name
2712 = save_string (argv[i] + prev, j - prev);
2715 /* Record the part after the last comma. */
2716 infiles[n_infiles].language = 0;
2717 infiles[n_infiles++].name = argv[i] + prev;
2719 else if (strcmp (argv[i], "-Xlinker") == 0)
2721 infiles[n_infiles].language = 0;
2722 infiles[n_infiles++].name = argv[++i];
2724 else if (strncmp (argv[i], "-l", 2) == 0)
2726 infiles[n_infiles].language = 0;
2727 infiles[n_infiles++].name = argv[i];
2729 else if (strcmp (argv[i], "-specs") == 0)
2731 else if (strncmp (argv[i], "-specs=", 7) == 0)
2733 else if (argv[i][0] == '-' && argv[i][1] != 0)
2735 register char *p = &argv[i][1];
2736 register int c = *p;
2738 if (c == 'B' || c == 'b' || c == 'V')
2740 /* Skip a separate arg, if any. */
2747 if (p[1] == 0 && i + 1 == argc)
2748 fatal ("argument to `-x' is missing");
2750 spec_lang = argv[++i];
2753 if (! strcmp (spec_lang, "none"))
2754 /* Suppress the warning if -xnone comes after the last input
2755 file, because alternate command interfaces like g++ might
2756 find it useful to place -xnone after each input file. */
2759 last_language_n_infiles = n_infiles;
2762 switches[n_switches].part1 = p;
2763 /* Deal with option arguments in separate argv elements. */
2764 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2765 || WORD_SWITCH_TAKES_ARG (p))
2768 int n_args = WORD_SWITCH_TAKES_ARG (p);
2772 /* Count only the option arguments in separate argv elements. */
2773 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2775 if (i + n_args >= argc)
2776 fatal ("argument to `-%s' is missing", p);
2777 switches[n_switches].args
2778 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2780 switches[n_switches].args[j++] = argv[++i];
2781 /* Null-terminate the vector. */
2782 switches[n_switches].args[j] = 0;
2784 else if (index (switches_need_spaces, c))
2786 /* On some systems, ld cannot handle some options without
2787 a space. So split the option from its argument. */
2788 char *part1 = (char *) xmalloc (2);
2792 switches[n_switches].part1 = part1;
2793 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2794 switches[n_switches].args[0] = xmalloc (strlen (p));
2795 strcpy (switches[n_switches].args[0], &p[1]);
2796 switches[n_switches].args[1] = 0;
2799 switches[n_switches].args = 0;
2801 switches[n_switches].live_cond = 0;
2802 switches[n_switches].valid = 0;
2803 /* This is always valid, since gcc.c itself understands it. */
2804 if (!strcmp (p, "save-temps"))
2805 switches[n_switches].valid = 1;
2810 #ifdef HAVE_OBJECT_SUFFIX
2811 argv[i] = convert_filename (argv[i], 0);
2814 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2816 perror_with_name (argv[i]);
2821 infiles[n_infiles].language = spec_lang;
2822 infiles[n_infiles++].name = argv[i];
2827 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2828 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2830 switches[n_switches].part1 = 0;
2831 infiles[n_infiles].name = 0;
2834 /* Process a spec string, accumulating and running commands. */
2836 /* These variables describe the input file name.
2837 input_file_number is the index on outfiles of this file,
2838 so that the output file name can be stored for later use by %o.
2839 input_basename is the start of the part of the input file
2840 sans all directory names, and basename_length is the number
2841 of characters starting there excluding the suffix .c or whatever. */
2843 static char *input_filename;
2844 static int input_file_number;
2845 static int input_filename_length;
2846 static int basename_length;
2847 static char *input_basename;
2848 static char *input_suffix;
2850 /* These are variables used within do_spec and do_spec_1. */
2852 /* Nonzero if an arg has been started and not yet terminated
2853 (with space, tab or newline). */
2854 static int arg_going;
2856 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2857 is a temporary file name. */
2858 static int delete_this_arg;
2860 /* Nonzero means %w has been seen; the next arg to be terminated
2861 is the output file name of this compilation. */
2862 static int this_is_output_file;
2864 /* Nonzero means %s has been seen; the next arg to be terminated
2865 is the name of a library file and we should try the standard
2866 search dirs for it. */
2867 static int this_is_library_file;
2869 /* Nonzero means that the input of this command is coming from a pipe. */
2870 static int input_from_pipe;
2872 /* Process the spec SPEC and run the commands specified therein.
2873 Returns 0 if the spec is successfully processed; -1 if failed. */
2883 delete_this_arg = 0;
2884 this_is_output_file = 0;
2885 this_is_library_file = 0;
2886 input_from_pipe = 0;
2888 value = do_spec_1 (spec, 0, NULL_PTR);
2890 /* Force out any unfinished command.
2891 If -pipe, this forces out the last command if it ended in `|'. */
2894 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2897 if (argbuf_index > 0)
2904 /* Process the sub-spec SPEC as a portion of a larger spec.
2905 This is like processing a whole spec except that we do
2906 not initialize at the beginning and we do not supply a
2907 newline by default at the end.
2908 INSWITCH nonzero means don't process %-sequences in SPEC;
2909 in this case, % is treated as an ordinary character.
2910 This is used while substituting switches.
2911 INSWITCH nonzero also causes SPC not to terminate an argument.
2913 Value is zero unless a line was finished
2914 and the command on that line reported an error. */
2917 do_spec_1 (spec, inswitch, soft_matched_part)
2920 char *soft_matched_part;
2922 register char *p = spec;
2929 /* If substituting a switch, treat all chars like letters.
2930 Otherwise, NL, SPC, TAB and % are special. */
2931 switch (inswitch ? 'a' : c)
2934 /* End of line: finish any pending argument,
2935 then run the pending command if one has been started. */
2938 obstack_1grow (&obstack, 0);
2939 string = obstack_finish (&obstack);
2940 if (this_is_library_file)
2941 string = find_file (string);
2942 store_arg (string, delete_this_arg, this_is_output_file);
2943 if (this_is_output_file)
2944 outfiles[input_file_number] = string;
2948 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2950 for (i = 0; i < n_switches; i++)
2951 if (!strcmp (switches[i].part1, "pipe"))
2954 /* A `|' before the newline means use a pipe here,
2955 but only if -pipe was specified.
2956 Otherwise, execute now and don't pass the `|' as an arg. */
2959 input_from_pipe = 1;
2960 switches[i].valid = 1;
2967 if (argbuf_index > 0)
2973 /* Reinitialize for a new command, and for a new argument. */
2976 delete_this_arg = 0;
2977 this_is_output_file = 0;
2978 this_is_library_file = 0;
2979 input_from_pipe = 0;
2983 /* End any pending argument. */
2986 obstack_1grow (&obstack, 0);
2987 string = obstack_finish (&obstack);
2988 if (this_is_library_file)
2989 string = find_file (string);
2990 store_arg (string, delete_this_arg, this_is_output_file);
2991 if (this_is_output_file)
2992 outfiles[input_file_number] = string;
2996 obstack_1grow (&obstack, c);
3002 /* Space or tab ends an argument if one is pending. */
3005 obstack_1grow (&obstack, 0);
3006 string = obstack_finish (&obstack);
3007 if (this_is_library_file)
3008 string = find_file (string);
3009 store_arg (string, delete_this_arg, this_is_output_file);
3010 if (this_is_output_file)
3011 outfiles[input_file_number] = string;
3013 /* Reinitialize for a new argument. */
3015 delete_this_arg = 0;
3016 this_is_output_file = 0;
3017 this_is_library_file = 0;
3024 fatal ("Invalid specification! Bug in cc.");
3027 obstack_grow (&obstack, input_basename, basename_length);
3032 delete_this_arg = 2;
3035 /* Dump out the directories specified with LIBRARY_PATH,
3036 followed by the absolute directories
3037 that we search for startfiles. */
3040 struct prefix_list *pl = startfile_prefixes.plist;
3042 char *buffer = (char *) xmalloc (bufsize);
3045 for (; pl; pl = pl->next)
3047 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3048 /* Used on systems which record the specified -L dirs
3049 and use them to search for dynamic linking. */
3050 /* Relative directories always come from -B,
3051 and it is better not to use them for searching
3052 at run time. In particular, stage1 loses */
3053 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3056 /* Try subdirectory if there is one. */
3057 if (multilib_dir != NULL)
3061 if (strlen (pl->prefix) + strlen (machine_suffix)
3063 bufsize = (strlen (pl->prefix)
3064 + strlen (machine_suffix)) * 2 + 1;
3065 buffer = (char *) xrealloc (buffer, bufsize);
3066 strcpy (buffer, pl->prefix);
3067 strcat (buffer, machine_suffix);
3068 if (is_directory (buffer, multilib_dir, 1))
3070 do_spec_1 ("-L", 0, NULL_PTR);
3071 #ifdef SPACE_AFTER_L_OPTION
3072 do_spec_1 (" ", 0, NULL_PTR);
3074 do_spec_1 (buffer, 1, NULL_PTR);
3075 do_spec_1 (multilib_dir, 1, NULL_PTR);
3076 /* Make this a separate argument. */
3077 do_spec_1 (" ", 0, NULL_PTR);
3080 if (!pl->require_machine_suffix)
3082 if (is_directory (pl->prefix, multilib_dir, 1))
3084 do_spec_1 ("-L", 0, NULL_PTR);
3085 #ifdef SPACE_AFTER_L_OPTION
3086 do_spec_1 (" ", 0, NULL_PTR);
3088 do_spec_1 (pl->prefix, 1, NULL_PTR);
3089 do_spec_1 (multilib_dir, 1, NULL_PTR);
3090 /* Make this a separate argument. */
3091 do_spec_1 (" ", 0, NULL_PTR);
3097 if (is_directory (pl->prefix, machine_suffix, 1))
3099 do_spec_1 ("-L", 0, NULL_PTR);
3100 #ifdef SPACE_AFTER_L_OPTION
3101 do_spec_1 (" ", 0, NULL_PTR);
3103 do_spec_1 (pl->prefix, 1, NULL_PTR);
3104 /* Remove slash from machine_suffix. */
3105 if (strlen (machine_suffix) >= bufsize)
3106 bufsize = strlen (machine_suffix) * 2 + 1;
3107 buffer = (char *) xrealloc (buffer, bufsize);
3108 strcpy (buffer, machine_suffix);
3109 idx = strlen (buffer);
3110 if (buffer[idx - 1] == '/'
3111 || buffer[idx - 1] == DIR_SEPARATOR)
3112 buffer[idx - 1] = 0;
3113 do_spec_1 (buffer, 1, NULL_PTR);
3114 /* Make this a separate argument. */
3115 do_spec_1 (" ", 0, NULL_PTR);
3118 if (!pl->require_machine_suffix)
3120 if (is_directory (pl->prefix, "", 1))
3122 do_spec_1 ("-L", 0, NULL_PTR);
3123 #ifdef SPACE_AFTER_L_OPTION
3124 do_spec_1 (" ", 0, NULL_PTR);
3126 /* Remove slash from pl->prefix. */
3127 if (strlen (pl->prefix) >= bufsize)
3128 bufsize = strlen (pl->prefix) * 2 + 1;
3129 buffer = (char *) xrealloc (buffer, bufsize);
3130 strcpy (buffer, pl->prefix);
3131 idx = strlen (buffer);
3132 if (buffer[idx - 1] == '/'
3133 || buffer[idx - 1] == DIR_SEPARATOR)
3134 buffer[idx - 1] = 0;
3135 do_spec_1 (buffer, 1, NULL_PTR);
3136 /* Make this a separate argument. */
3137 do_spec_1 (" ", 0, NULL_PTR);
3146 /* {...:%efoo} means report an error with `foo' as error message
3147 and don't execute any more commands for this file. */
3151 while (*p != 0 && *p != '\n') p++;
3152 buf = (char *) alloca (p - q + 1);
3153 strncpy (buf, q, p - q);
3163 if (save_temps_flag)
3165 obstack_grow (&obstack, input_basename, basename_length);
3166 delete_this_arg = 0;
3170 #ifdef MKTEMP_EACH_FILE
3171 /* ??? This has a problem: the total number of
3172 values mktemp can return is limited.
3173 That matters for the names of object files.
3174 In 2.4, do something about that. */
3175 struct temp_name *t;
3177 while (*p == '.' || isalpha (*p)
3178 || (p[0] == '%' && p[1] == 'O'))
3181 /* See if we already have an association of %g/%u/%U and
3183 for (t = temp_names; t; t = t->next)
3184 if (t->length == p - suffix
3185 && strncmp (t->suffix, suffix, p - suffix) == 0
3186 && t->unique == (c != 'g'))
3189 /* Make a new association if needed. %u requires one. */
3190 if (t == 0 || c == 'u')
3194 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3195 t->next = temp_names;
3198 t->length = p - suffix;
3199 t->suffix = save_string (suffix, p - suffix);
3200 t->unique = (c != 'g');
3201 temp_filename = choose_temp_base ();
3202 temp_filename_length = strlen (temp_filename);
3203 t->filename = temp_filename;
3204 t->filename_length = temp_filename_length;
3207 obstack_grow (&obstack, t->filename, t->filename_length);
3208 delete_this_arg = 1;
3210 obstack_grow (&obstack, temp_filename, temp_filename_length);
3211 if (c == 'u' || c == 'U')
3217 sprintf (buff, "%d", unique);
3218 obstack_grow (&obstack, buff, strlen (buff));
3221 delete_this_arg = 1;
3227 obstack_grow (&obstack, input_filename, input_filename_length);
3233 struct prefix_list *pl = include_prefixes.plist;
3235 if (gcc_exec_prefix)
3237 do_spec_1 ("-iprefix", 1, NULL_PTR);
3238 /* Make this a separate argument. */
3239 do_spec_1 (" ", 0, NULL_PTR);
3240 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3241 do_spec_1 (" ", 0, NULL_PTR);
3244 for (; pl; pl = pl->next)
3246 do_spec_1 ("-isystem", 1, NULL_PTR);
3247 /* Make this a separate argument. */
3248 do_spec_1 (" ", 0, NULL_PTR);
3249 do_spec_1 (pl->prefix, 1, NULL_PTR);
3250 do_spec_1 (" ", 0, NULL_PTR);
3256 for (i = 0; i < n_infiles; i++)
3257 store_arg (outfiles[i], 0, 0);
3261 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3266 this_is_library_file = 1;
3270 this_is_output_file = 1;
3275 int cur_index = argbuf_index;
3276 /* Handle the {...} following the %W. */
3279 p = handle_braces (p + 1);
3282 /* If any args were output, mark the last one for deletion
3284 if (argbuf_index != cur_index)
3285 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3289 /* %x{OPTION} records OPTION for %X to output. */
3295 /* Skip past the option value and make a copy. */
3300 string = save_string (p1 + 1, p - p1 - 2);
3302 /* See if we already recorded this option. */
3303 for (i = 0; i < n_linker_options; i++)
3304 if (! strcmp (string, linker_options[i]))
3310 /* This option is new; add it. */
3312 if (!linker_options)
3314 = (char **) xmalloc (n_linker_options * sizeof (char **));
3317 = (char **) xrealloc (linker_options,
3318 n_linker_options * sizeof (char **));
3320 linker_options[n_linker_options - 1] = string;
3324 /* Dump out the options accumulated previously using %x. */
3326 for (i = 0; i < n_linker_options; i++)
3328 do_spec_1 (linker_options[i], 1, NULL_PTR);
3329 /* Make each accumulated option a separate argument. */
3330 do_spec_1 (" ", 0, NULL_PTR);
3334 /* Dump out the options accumulated previously using -Wa,. */
3336 for (i = 0; i < n_assembler_options; i++)
3338 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3339 /* Make each accumulated option a separate argument. */
3340 do_spec_1 (" ", 0, NULL_PTR);
3344 /* Dump out the options accumulated previously using -Wp,. */
3346 for (i = 0; i < n_preprocessor_options; i++)
3348 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3349 /* Make each accumulated option a separate argument. */
3350 do_spec_1 (" ", 0, NULL_PTR);
3354 /* Here are digits and numbers that just process
3355 a certain constant string as a spec. */
3358 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3364 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3370 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3376 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3382 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3388 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3394 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3400 value = do_spec_1 (link_spec, 0, NULL_PTR);
3406 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3412 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3419 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3423 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3427 if (! strncmp (y, "-D", 2))
3428 /* Copy the whole option. */
3429 while (*y && *y != ' ' && *y != '\t')
3431 else if (*y == ' ' || *y == '\t')
3432 /* Copy whitespace to the result. */
3434 /* Don't copy other options. */
3441 value = do_spec_1 (buf, 0, NULL_PTR);
3449 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3453 /* Copy all of CPP_PREDEFINES into BUF,
3454 but put __ after every -D and at the end of each arg. */
3458 if (! strncmp (y, "-D", 2))
3466 || (*(y+1) != '_' && ! isupper (*(y+1))))
3468 /* Stick __ at front of macro name. */
3471 /* Arrange to stick __ at the end as well. */
3475 /* Copy the macro name. */
3476 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3485 /* Copy the value given, if any. */
3486 while (*y && *y != ' ' && *y != '\t')
3489 else if (*y == ' ' || *y == '\t')
3490 /* Copy whitespace to the result. */
3492 /* Don't copy -A options */
3498 /* Copy all of CPP_PREDEFINES into BUF,
3499 but put __ after every -D. */
3503 if (! strncmp (y, "-D", 2))
3508 || (*(y+1) != '_' && ! isupper (*(y+1))))
3510 /* Stick -D__ at front of macro name. */
3516 /* Copy the macro name. */
3517 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3520 /* Copy the value given, if any. */
3521 while (*y && *y != ' ' && *y != '\t')
3526 /* Do not copy this macro - we have just done it before */
3527 while (*y && *y != ' ' && *y != '\t')
3531 else if (*y == ' ' || *y == '\t')
3532 /* Copy whitespace to the result. */
3534 /* Don't copy -A options */
3540 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3544 if (! strncmp (y, "-A", 2))
3545 /* Copy the whole option. */
3546 while (*y && *y != ' ' && *y != '\t')
3548 else if (*y == ' ' || *y == '\t')
3549 /* Copy whitespace to the result. */
3551 /* Don't copy other options. */
3558 value = do_spec_1 (buf, 0, NULL_PTR);
3565 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3570 /* Here we define characters other than letters and digits. */
3573 p = handle_braces (p);
3579 obstack_1grow (&obstack, '%');
3583 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3584 do_spec_1 (" ", 0, NULL_PTR);
3587 /* Process a string found as the value of a spec given by name.
3588 This feature allows individual machine descriptions
3589 to add and use their own specs.
3590 %[...] modifies -D options the way %P does;
3591 %(...) uses the spec unmodified. */
3596 struct spec_list *sl;
3599 /* The string after the S/P is the name of a spec that is to be
3601 while (*p && *p != ')' && *p != ']')
3604 /* See if it's in the list */
3605 for (len = p - name, sl = specs; sl; sl = sl->next)
3606 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3616 value = do_spec_1 (name, 0, NULL_PTR);
3622 char *x = (char *) alloca (strlen (name) * 2 + 1);
3626 /* Copy all of NAME into BUF, but put __ after
3627 every -D and at the end of each arg, */
3632 if (! strncmp (y, "-D", 2))
3642 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3643 || *y == '}' || *y == 0))
3656 value = do_spec_1 (buf, 0, NULL_PTR);
3662 /* Discard the closing paren or bracket. */
3670 int c1 = *p++; /* Select first or second version number. */
3671 char *v = compiler_version;
3674 /* The format of the version string is
3675 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3677 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3678 while (! isdigit (*v))
3680 if (v > compiler_version && v[-1] != '-')
3683 /* If desired, advance to second version number. */
3686 /* Set V after the first period. */
3687 while (isdigit (*v))
3694 /* Set Q at the next period or at the end. */
3696 while (isdigit (*q))
3698 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3701 /* Put that part into the command. */
3702 obstack_grow (&obstack, v, q - v);
3708 if (input_from_pipe)
3709 do_spec_1 ("-", 0, NULL_PTR);
3718 /* Backslash: treat next character as ordinary. */
3723 /* Ordinary character: put it into the current argument. */
3724 obstack_1grow (&obstack, c);
3728 return 0; /* End of string */
3731 /* Return 0 if we call do_spec_1 and that returns -1. */
3744 /* A `|' after the open-brace means,
3745 if the test fails, output a single minus sign rather than nothing.
3746 This is used in %{|!pipe:...}. */
3750 /* A `!' after the open-brace negates the condition:
3751 succeed if the specified switch is not present. */
3755 /* A `.' after the open-brace means test against the current suffix. */
3765 while (*p != ':' && *p != '}') p++;
3768 register int count = 1;
3786 int found = (input_suffix != 0
3787 && strlen (input_suffix) == p - filter
3788 && strncmp (input_suffix, filter, p - filter) == 0);
3794 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3799 else if (p[-1] == '*' && p[0] == '}')
3801 /* Substitute all matching switches as separate args. */
3804 for (i = 0; i < n_switches; i++)
3805 if (!strncmp (switches[i].part1, filter, p - filter)
3806 && check_live_switch (i, p - filter))
3811 /* Test for presence of the specified switch. */
3815 /* If name specified ends in *, as in {x*:...},
3816 check for %* and handle that case. */
3817 if (p[-1] == '*' && !negate)
3822 /* First see whether we have %*. */
3826 if (*r == '%' && r[1] == '*')
3830 /* If we do, handle that case. */
3833 /* Substitute all matching switches as separate args.
3834 But do this by substituting for %*
3835 in the text that follows the colon. */
3837 unsigned hard_match_len = p - filter - 1;
3838 char *string = save_string (p + 1, q - p - 2);
3840 for (i = 0; i < n_switches; i++)
3841 if (!strncmp (switches[i].part1, filter, hard_match_len)
3842 && check_live_switch (i, -1))
3844 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3845 /* Pass any arguments this switch has. */
3853 /* If name specified ends in *, as in {x*:...},
3854 check for presence of any switch name starting with x. */
3857 for (i = 0; i < n_switches; i++)
3859 unsigned hard_match_len = p - filter - 1;
3861 if (!strncmp (switches[i].part1, filter, hard_match_len)
3862 && check_live_switch (i, hard_match_len))
3868 /* Otherwise, check for presence of exact name specified. */
3871 for (i = 0; i < n_switches; i++)
3873 if (!strncmp (switches[i].part1, filter, p - filter)
3874 && switches[i].part1[p - filter] == 0
3875 && check_live_switch (i, -1))
3883 /* If it is as desired (present for %{s...}, absent for %{-s...})
3884 then substitute either the switch or the specified
3885 conditional text. */
3886 if (present != negate)
3894 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3900 /* Here if a %{|...} conditional fails: output a minus sign,
3901 which means "standard output" or "standard input". */
3902 do_spec_1 ("-", 0, NULL_PTR);
3909 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3910 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3911 spec, or -1 if either exact match or %* is used.
3913 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3914 whose value does not begin with "no-" is obsoleted by the same value
3915 with the "no-", similarly for a switch with the "no-" prefix. */
3918 check_live_switch (switchnum, prefix_length)
3922 char *name = switches[switchnum].part1;
3925 /* In the common case of {<at-most-one-letter>*}, a negating
3926 switch would always match, so ignore that case. We will just
3927 send the conflicting switches to the compiler phase. */
3928 if (prefix_length >= 0 && prefix_length <= 1)
3931 /* If we already processed this switch and determined if it was
3932 live or not, return our past determination. */
3933 if (switches[switchnum].live_cond != 0)
3934 return switches[switchnum].live_cond > 0;
3936 /* Now search for duplicate in a manner that depends on the name. */
3940 for (i = switchnum + 1; i < n_switches; i++)
3941 if (switches[i].part1[0] == 'O')
3943 switches[switchnum].valid = 1;
3944 switches[switchnum].live_cond = -1;
3949 case 'W': case 'f': case 'm':
3950 if (! strncmp (name + 1, "no-", 3))
3952 /* We have Xno-YYY, search for XYYY. */
3953 for (i = switchnum + 1; i < n_switches; i++)
3954 if (switches[i].part1[0] == name[0]
3955 && ! strcmp (&switches[i].part1[1], &name[4]))
3957 switches[switchnum].valid = 1;
3958 switches[switchnum].live_cond = -1;
3964 /* We have XYYY, search for Xno-YYY. */
3965 for (i = switchnum + 1; i < n_switches; i++)
3966 if (switches[i].part1[0] == name[0]
3967 && switches[i].part1[1] == 'n'
3968 && switches[i].part1[2] == 'o'
3969 && switches[i].part1[3] == '-'
3970 && !strcmp (&switches[i].part1[4], &name[1]))
3972 switches[switchnum].valid = 1;
3973 switches[switchnum].live_cond = -1;
3980 /* Otherwise the switch is live. */
3981 switches[switchnum].live_cond = 1;
3985 /* Pass a switch to the current accumulating command
3986 in the same form that we received it.
3987 SWITCHNUM identifies the switch; it is an index into
3988 the vector of switches gcc received, which is `switches'.
3989 This cannot fail since it never finishes a command line.
3991 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
3994 give_switch (switchnum, omit_first_word)
3996 int omit_first_word;
3998 if (!omit_first_word)
4000 do_spec_1 ("-", 0, NULL_PTR);
4001 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4003 do_spec_1 (" ", 0, NULL_PTR);
4004 if (switches[switchnum].args != 0)
4007 for (p = switches[switchnum].args; *p; p++)
4009 do_spec_1 (*p, 1, NULL_PTR);
4010 do_spec_1 (" ", 0, NULL_PTR);
4013 switches[switchnum].valid = 1;
4016 /* Search for a file named NAME trying various prefixes including the
4017 user's -B prefix and some standard ones.
4018 Return the absolute file name found. If nothing is found, return NAME. */
4026 /* Try multilib_dir if it is defined. */
4027 if (multilib_dir != NULL)
4031 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4032 strcpy (try, multilib_dir);
4033 strcat (try, dir_separator_str);
4036 newname = find_a_file (&startfile_prefixes, try, R_OK);
4038 /* If we don't find it in the multi library dir, then fall
4039 through and look for it in the normal places. */
4040 if (newname != NULL)
4044 newname = find_a_file (&startfile_prefixes, name, R_OK);
4045 return newname ? newname : name;
4048 /* Determine whether a directory exists. If LINKER, return 0 for
4049 certain fixed names not needed by the linker. If not LINKER, it is
4050 only important to return 0 if the host machine has a small ARG_MAX
4054 is_directory (path1, path2, linker)
4059 int len1 = strlen (path1);
4060 int len2 = strlen (path2);
4061 char *path = (char *) alloca (3 + len1 + len2);
4065 #ifndef SMALL_ARG_MAX
4070 /* Construct the path from the two parts. Ensure the string ends with "/.".
4071 The resulting path will be a directory even if the given path is a
4073 bcopy (path1, path, len1);
4074 bcopy (path2, path + len1, len2);
4075 cp = path + len1 + len2;
4076 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4077 *cp++ = DIR_SEPARATOR;
4081 /* Exclude directories that the linker is known to search. */
4084 && strcmp (path, concat (dir_separator_str, "lib",
4085 dir_separator_str, ".", NULL_PTR)) == 0)
4087 && strcmp (path, concat (dir_separator_str, "usr",
4088 dir_separator_str, "lib",
4089 dir_separator_str, ".", NULL_PTR)) == 0)))
4092 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4095 /* On fatal signals, delete all the temporary files. */
4098 fatal_error (signum)
4101 signal (signum, SIG_DFL);
4102 delete_failure_queue ();
4103 delete_temp_files ();
4104 /* Get the same signal again, this time not handled,
4105 so its normal effect occurs. */
4106 kill (getpid (), signum);
4117 int linker_was_run = 0;
4118 char *explicit_link_files;
4121 struct user_specs *uptr;
4123 p = argv[0] + strlen (argv[0]);
4124 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4127 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4128 signal (SIGINT, fatal_error);
4130 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4131 signal (SIGHUP, fatal_error);
4133 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4134 signal (SIGTERM, fatal_error);
4136 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4137 signal (SIGPIPE, fatal_error);
4141 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4143 obstack_init (&obstack);
4145 /* Build multilib_select, et. al from the separate lines that make up each
4146 multilib selection. */
4148 char **q = multilib_raw;
4151 obstack_init (&multilib_obstack);
4152 while ((p = *q++) != (char *) 0)
4153 obstack_grow (&multilib_obstack, p, strlen (p));
4155 obstack_1grow (&multilib_obstack, 0);
4156 multilib_select = obstack_finish (&multilib_obstack);
4158 q = multilib_matches_raw;
4159 while ((p = *q++) != (char *) 0)
4160 obstack_grow (&multilib_obstack, p, strlen (p));
4162 obstack_1grow (&multilib_obstack, 0);
4163 multilib_matches = obstack_finish (&multilib_obstack);
4167 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4171 obstack_1grow (&multilib_obstack, ' ');
4172 obstack_grow (&multilib_obstack,
4173 multilib_defaults_raw[i],
4174 strlen (multilib_defaults_raw[i]));
4178 obstack_1grow (&multilib_obstack, 0);
4179 multilib_defaults = obstack_finish (&multilib_obstack);
4182 /* Set up to remember the pathname of gcc and any options
4183 needed for collect. We use argv[0] instead of programname because
4184 we need the complete pathname. */
4185 obstack_init (&collect_obstack);
4186 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4187 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4188 putenv (obstack_finish (&collect_obstack));
4190 #ifdef INIT_ENVIRONMENT
4191 /* Set up any other necessary machine specific environment variables. */
4192 putenv (INIT_ENVIRONMENT);
4195 /* Choose directory for temp files. */
4197 temp_filename = choose_temp_base ();
4198 temp_filename_length = strlen (temp_filename);
4200 /* Make a table of what switches there are (switches, n_switches).
4201 Make a table of specified input files (infiles, n_infiles).
4202 Decode switches that are handled locally. */
4204 process_command (argc, argv);
4206 /* Initialize the vector of specs to just the default.
4207 This means one element containing 0s, as a terminator. */
4209 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4210 bcopy ((char *) default_compilers, (char *) compilers,
4211 sizeof default_compilers);
4212 n_compilers = n_default_compilers;
4214 /* Read specs from a file if there is one. */
4216 machine_suffix = concat (spec_machine, dir_separator_str,
4217 spec_version, dir_separator_str, NULL_PTR);
4218 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4220 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4221 /* Read the specs file unless it is a default one. */
4222 if (specs_file != 0 && strcmp (specs_file, "specs"))
4223 read_specs (specs_file);
4229 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4230 set_spec (extra_specs[k].name, extra_specs[k].spec);
4234 /* Process any user specified specs in the order given on the command
4236 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4238 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4239 read_specs (filename ? filename : uptr->filename);
4242 /* If not cross-compiling, look for startfiles in the standard places. */
4243 /* The fact that these are done here, after reading the specs file,
4244 means that it cannot be found in these directories.
4245 But that's okay. It should never be there anyway. */
4248 #ifdef MD_EXEC_PREFIX
4249 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4250 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4253 #ifdef MD_STARTFILE_PREFIX
4254 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4257 #ifdef MD_STARTFILE_PREFIX_1
4258 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4261 /* If standard_startfile_prefix is relative, base it on
4262 standard_exec_prefix. This lets us move the installed tree
4263 as a unit. If GCC_EXEC_PREFIX is defined, base
4264 standard_startfile_prefix on that as well. */
4265 if (*standard_startfile_prefix == '/'
4266 || *standard_startfile_prefix == DIR_SEPARATOR)
4267 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4271 if (gcc_exec_prefix)
4272 add_prefix (&startfile_prefixes,
4273 concat (gcc_exec_prefix, machine_suffix,
4274 standard_startfile_prefix, NULL_PTR),
4276 add_prefix (&startfile_prefixes,
4277 concat (standard_exec_prefix,
4279 standard_startfile_prefix, NULL_PTR),
4283 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4285 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4287 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4288 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4293 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4294 add_prefix (&startfile_prefixes,
4295 concat (gcc_exec_prefix, machine_suffix,
4296 standard_startfile_prefix, NULL_PTR),
4300 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4301 if (gcc_exec_prefix)
4303 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4304 + strlen (spec_version)
4305 + strlen (spec_machine) + 3);
4306 strcpy (temp, gcc_exec_prefix);
4307 strcat (temp, spec_machine);
4308 strcat (temp, dir_separator_str);
4309 strcat (temp, spec_version);
4310 strcat (temp, dir_separator_str);
4311 gcc_exec_prefix = temp;
4314 /* Now we have the specs.
4315 Set the `valid' bits for switches that match anything in any spec. */
4317 validate_all_switches ();
4319 /* Now that we have the switches and the specs, set
4320 the subdirectory based on the options. */
4321 set_multilib_dir ();
4323 /* Warn about any switches that no pass was interested in. */
4325 for (i = 0; i < n_switches; i++)
4326 if (! switches[i].valid)
4327 error ("unrecognized option `-%s'", switches[i].part1);
4329 /* Obey some of the options. */
4331 if (print_search_dirs)
4333 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4334 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4335 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4339 if (print_file_name)
4341 printf ("%s\n", find_file (print_file_name));
4345 if (print_prog_name)
4347 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4348 printf ("%s\n", (newname ? newname : print_prog_name));
4352 if (print_multi_lib)
4354 print_multilib_info ();
4358 if (print_multi_directory)
4360 if (multilib_dir == NULL)
4363 printf ("%s\n", multilib_dir);
4369 if (! strcmp (version_string, compiler_version))
4370 fprintf (stderr, "gcc version %s\n", version_string);
4372 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4373 version_string, compiler_version);
4380 fatal ("No input files");
4382 /* Make a place to record the compiler output file names
4383 that correspond to the input files. */
4385 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4386 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4388 /* Record which files were specified explicitly as link input. */
4390 explicit_link_files = xmalloc (n_infiles);
4391 bzero (explicit_link_files, n_infiles);
4393 for (i = 0; i < n_infiles; i++)
4395 register struct compiler *cp = 0;
4396 int this_file_error = 0;
4398 /* Tell do_spec what to substitute for %i. */
4400 input_filename = infiles[i].name;
4401 input_filename_length = strlen (input_filename);
4402 input_file_number = i;
4404 /* Use the same thing in %o, unless cp->spec says otherwise. */
4406 outfiles[i] = input_filename;
4408 /* Figure out which compiler from the file's suffix. */
4410 cp = lookup_compiler (infiles[i].name, input_filename_length,
4411 infiles[i].language);
4415 /* Ok, we found an applicable compiler. Run its spec. */
4416 /* First say how much of input_filename to substitute for %b */
4420 if (cp->spec[0][0] == '#')
4421 error ("%s: %s compiler not installed on this system",
4422 input_filename, &cp->spec[0][1]);
4424 input_basename = input_filename;
4425 for (p = input_filename; *p; p++)
4426 if (*p == '/' || *p == DIR_SEPARATOR)
4427 input_basename = p + 1;
4429 /* Find a suffix starting with the last period,
4430 and set basename_length to exclude that suffix. */
4431 basename_length = strlen (input_basename);
4432 p = input_basename + basename_length;
4433 while (p != input_basename && *p != '.') --p;
4434 if (*p == '.' && p != input_basename)
4436 basename_length = p - input_basename;
4437 input_suffix = p + 1;
4443 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4445 len += strlen (cp->spec[j]);
4447 p = (char *) xmalloc (len + 1);
4450 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4453 strcpy (p + len, cp->spec[j]);
4454 len += strlen (cp->spec[j]);
4457 value = do_spec (p);
4460 this_file_error = 1;
4463 /* If this file's name does not contain a recognized suffix,
4464 record it as explicit linker input. */
4467 explicit_link_files[i] = 1;
4469 /* Clear the delete-on-failure queue, deleting the files in it
4470 if this compilation failed. */
4472 if (this_file_error)
4474 delete_failure_queue ();
4477 /* If this compilation succeeded, don't delete those files later. */
4478 clear_failure_queue ();
4481 /* Run ld to link all the compiler output files. */
4483 if (error_count == 0)
4485 int tmp = execution_count;
4489 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4491 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4492 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4494 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4496 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4497 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4500 for (i = 0; i < n_switches; i++)
4504 obstack_grow (&collect_obstack, " ", 1);
4507 obstack_grow (&collect_obstack, "-", 1);
4508 obstack_grow (&collect_obstack, switches[i].part1,
4509 strlen (switches[i].part1));
4511 for (args = switches[i].args; args && *args; args++)
4513 obstack_grow (&collect_obstack, " ", 1);
4514 obstack_grow (&collect_obstack, *args, strlen (*args));
4517 obstack_grow (&collect_obstack, "\0", 1);
4518 putenv (obstack_finish (&collect_obstack));
4520 value = do_spec (link_command_spec);
4523 linker_was_run = (tmp != execution_count);
4526 /* Warn if a -B option was specified but the prefix was never used. */
4527 unused_prefix_warnings (&exec_prefixes);
4528 unused_prefix_warnings (&startfile_prefixes);
4530 /* If options said don't run linker,
4531 complain about input files to be given to the linker. */
4533 if (! linker_was_run && error_count == 0)
4534 for (i = 0; i < n_infiles; i++)
4535 if (explicit_link_files[i])
4536 error ("%s: linker input file unused since linking not done",
4539 /* Delete some or all of the temporary files we made. */
4542 delete_failure_queue ();
4543 delete_temp_files ();
4545 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4550 /* Find the proper compilation spec for the file name NAME,
4551 whose length is LENGTH. LANGUAGE is the specified language,
4552 or 0 if none specified. */
4554 static struct compiler *
4555 lookup_compiler (name, length, language)
4560 struct compiler *cp;
4562 /* Look for the language, if one is spec'd. */
4565 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4569 if (cp->suffix[0] == '@'
4570 && !strcmp (cp->suffix + 1, language))
4574 error ("language %s not recognized", language);
4577 /* Look for a suffix. */
4578 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4580 if (/* The suffix `-' matches only the file name `-'. */
4581 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4583 (strlen (cp->suffix) < length
4584 /* See if the suffix matches the end of NAME. */
4586 && (!strcmp (cp->suffix,
4587 name + length - strlen (cp->suffix))
4588 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4589 && !strcasecmp (cp->suffix,
4590 name + length - strlen (cp->suffix)))))
4592 && !strcmp (cp->suffix,
4593 name + length - strlen (cp->suffix))))
4596 if (cp->spec[0][0] == '@')
4598 struct compiler *new;
4599 /* An alias entry maps a suffix to a language.
4600 Search for the language; pass 0 for NAME and LENGTH
4601 to avoid infinite recursion if language not found.
4602 Construct the new compiler spec. */
4603 language = cp->spec[0] + 1;
4604 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4605 new->suffix = cp->suffix;
4606 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4607 (char *) new->spec, sizeof new->spec);
4610 /* A non-alias entry: return it. */
4622 register char *value = (char *) malloc (size);
4624 fatal ("virtual memory exhausted");
4629 xrealloc (ptr, size)
4633 register char *value = (char *) realloc (ptr, size);
4635 fatal ("virtual memory exhausted");
4639 /* This function is based on the one in libiberty. */
4642 concat VPROTO((char *first, ...))
4644 register int length;
4645 register char *newstr;
4653 /* First compute the size of the result and get sufficient memory. */
4655 VA_START (args, first);
4657 first = va_arg (args, char *);
4665 length += strlen (arg);
4666 arg = va_arg (args, char *);
4669 newstr = (char *) xmalloc (length + 1);
4672 /* Now copy the individual pieces to the result string. */
4674 VA_START (args, first);
4676 first = va_arg (args, char *);
4685 arg = va_arg (args, char *);
4694 save_string (s, len)
4698 register char *result = xmalloc (len + 1);
4700 bcopy (s, result, len);
4706 pfatal_with_name (name)
4709 fatal ("%s: %s", name, my_strerror (errno));
4713 perror_with_name (name)
4716 error ("%s: %s", name, my_strerror (errno));
4720 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4726 /* Space for trailing '\0' is in %s. */
4727 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4728 sprintf (msg, errmsg_fmt, errmsg_arg);
4732 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4735 /* More 'friendly' abort that prints the line and file.
4736 config.h can #define abort fancy_abort if you like that sort of thing. */
4741 fatal ("Internal gcc abort.");
4746 /* Output an error message and exit */
4749 fatal VPROTO((char *format, ...))
4756 VA_START (ap, format);
4759 format = va_arg (ap, char *);
4762 fprintf (stderr, "%s: ", programname);
4763 vfprintf (stderr, format, ap);
4765 fprintf (stderr, "\n");
4766 delete_temp_files ();
4771 error VPROTO((char *format, ...))
4778 VA_START (ap, format);
4781 format = va_arg (ap, char *);
4784 fprintf (stderr, "%s: ", programname);
4785 vfprintf (stderr, format, ap);
4788 fprintf (stderr, "\n");
4791 #else /* not HAVE_VPRINTF */
4794 fatal (msg, arg1, arg2)
4795 char *msg, *arg1, *arg2;
4797 error (msg, arg1, arg2);
4798 delete_temp_files ();
4803 error (msg, arg1, arg2)
4804 char *msg, *arg1, *arg2;
4806 fprintf (stderr, "%s: ", programname);
4807 fprintf (stderr, msg, arg1, arg2);
4808 fprintf (stderr, "\n");
4811 #endif /* not HAVE_VPRINTF */
4815 validate_all_switches ()
4817 struct compiler *comp;
4820 struct spec_list *spec;
4822 for (comp = compilers; comp->spec[0]; comp++)
4825 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4829 if (c == '%' && *p == '{')
4830 /* We have a switch spec. */
4831 validate_switches (p + 1);
4835 /* look through the linked list of extra specs read from the specs file */
4836 for (spec = specs; spec ; spec = spec->next)
4840 if (c == '%' && *p == '{')
4841 /* We have a switch spec. */
4842 validate_switches (p + 1);
4845 p = link_command_spec;
4847 if (c == '%' && *p == '{')
4848 /* We have a switch spec. */
4849 validate_switches (p + 1);
4851 /* Now notice switches mentioned in the machine-specific specs. */
4855 if (c == '%' && *p == '{')
4856 /* We have a switch spec. */
4857 validate_switches (p + 1);
4861 if (c == '%' && *p == '{')
4862 /* We have a switch spec. */
4863 validate_switches (p + 1);
4867 if (c == '%' && *p == '{')
4868 /* We have a switch spec. */
4869 validate_switches (p + 1);
4871 p = signed_char_spec;
4873 if (c == '%' && *p == '{')
4874 /* We have a switch spec. */
4875 validate_switches (p + 1);
4879 if (c == '%' && *p == '{')
4880 /* We have a switch spec. */
4881 validate_switches (p + 1);
4885 if (c == '%' && *p == '{')
4886 /* We have a switch spec. */
4887 validate_switches (p + 1);
4891 if (c == '%' && *p == '{')
4892 /* We have a switch spec. */
4893 validate_switches (p + 1);
4897 if (c == '%' && *p == '{')
4898 /* We have a switch spec. */
4899 validate_switches (p + 1);
4903 if (c == '%' && *p == '{')
4904 /* We have a switch spec. */
4905 validate_switches (p + 1);
4909 if (c == '%' && *p == '{')
4910 /* We have a switch spec. */
4911 validate_switches (p + 1);
4916 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4918 p = extra_specs[i].spec;
4920 if (c == '%' && *p == '{')
4921 /* We have a switch spec. */
4922 validate_switches (p + 1);
4929 /* Look at the switch-name that comes after START
4930 and mark as valid all supplied switches that match it. */
4933 validate_switches (start)
4936 register char *p = start;
4951 while (*p != ':' && *p != '}') p++;
4955 else if (p[-1] == '*')
4957 /* Mark all matching switches as valid. */
4959 for (i = 0; i < n_switches; i++)
4960 if (!strncmp (switches[i].part1, filter, p - filter))
4961 switches[i].valid = 1;
4965 /* Mark an exact matching switch as valid. */
4966 for (i = 0; i < n_switches; i++)
4968 if (!strncmp (switches[i].part1, filter, p - filter)
4969 && switches[i].part1[p - filter] == 0)
4970 switches[i].valid = 1;
4975 /* Check whether a particular argument was used. The first time we
4976 canonialize the switches to keep only the ones we care about. */
4990 static struct mswitchstr *mswitches;
4991 static int n_mswitches;
4996 struct mswitchstr *matches;
5000 /* Break multilib_matches into the component strings of string and replacement
5002 for (q = multilib_matches; *q != '\0'; q++)
5006 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5008 q = multilib_matches;
5019 matches[i].len = q - matches[i].str;
5021 matches[i].replace = ++q;
5022 while (*q != ';' && *q != '\0')
5028 matches[i].rep_len = q - matches[i].replace;
5036 /* Now build a list of the replacement string for switches that we care
5037 about. Make sure we allocate at least one entry. This prevents
5038 xmalloc from calling fatal, and prevents us from re-executing this
5041 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5042 * (n_switches ? n_switches : 1));
5043 for (i = 0; i < n_switches; i++)
5045 int xlen = strlen (switches[i].part1);
5046 for (j = 0; j < cnt; j++)
5047 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5049 mswitches[n_mswitches].str = matches[j].replace;
5050 mswitches[n_mswitches].len = matches[j].rep_len;
5051 mswitches[n_mswitches].replace = (char *)0;
5052 mswitches[n_mswitches].rep_len = 0;
5059 for (i = 0; i < n_mswitches; i++)
5060 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5067 default_arg (p, len)
5074 for (start = multilib_defaults; *start != '\0'; start = end+1)
5076 while (*start == ' ' || *start == '\t')
5082 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5085 if ((end - start) == len && strncmp (p, start, len) == 0)
5092 /* Work out the subdirectory to use based on the
5093 options. The format of multilib_select is a list of elements.
5094 Each element is a subdirectory name followed by a list of options
5095 followed by a semicolon. gcc will consider each line in turn. If
5096 none of the options beginning with an exclamation point are
5097 present, and all of the other options are present, that
5098 subdirectory will be used. */
5103 char *p = multilib_select;
5105 char *this_path, *this_arg;
5111 /* Ignore newlines. */
5118 /* Get the initial path. */
5126 this_path_len = p - this_path;
5128 /* Check the arguments. */
5143 while (*p != ' ' && *p != ';')
5150 if (*this_arg != '!')
5158 /* If this is a default argument, we can just ignore it.
5159 This is true even if this_arg begins with '!'. Beginning
5160 with '!' does not mean that this argument is necessarily
5161 inappropriate for this library: it merely means that
5162 there is a more specific library which uses this
5163 argument. If this argument is a default, we need not
5164 consider that more specific library. */
5165 if (! default_arg (this_arg, p - this_arg))
5167 ok = used_arg (this_arg, p - this_arg);
5178 if (this_path_len != 1
5179 || this_path[0] != '.')
5181 multilib_dir = xmalloc (this_path_len + 1);
5182 strncpy (multilib_dir, this_path, this_path_len);
5183 multilib_dir[this_path_len] = '\0';
5192 /* Print out the multiple library subdirectory selection
5193 information. This prints out a series of lines. Each line looks
5194 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5195 required. Only the desired options are printed out, the negative
5196 matches. The options are print without a leading dash. There are
5197 no spaces to make it easy to use the information in the shell.
5198 Each subdirectory is printed only once. This assumes the ordering
5199 generated by the genmultilib script. */
5202 print_multilib_info ()
5204 char *p = multilib_select;
5205 char *last_path = 0, *this_path;
5207 int last_path_len = 0;
5211 /* Ignore newlines. */
5218 /* Get the initial path. */
5227 /* If this is a duplicate, skip it. */
5228 skip = (last_path != 0 && p - this_path == last_path_len
5229 && ! strncmp (last_path, this_path, last_path_len));
5231 last_path = this_path;
5232 last_path_len = p - this_path;
5234 /* If this directory requires any default arguments, we can skip
5235 it. We will already have printed a directory identical to
5236 this one which does not require that default argument. */
5254 while (*q != ' ' && *q != ';')
5262 && default_arg (arg, q - arg))
5277 for (p1 = last_path; p1 < p; p1++)
5296 use_arg = *p != '!';
5301 while (*p != ' ' && *p != ';')
5316 /* If there are extra options, print them now */
5317 if (multilib_extra && *multilib_extra)
5319 int print_at = TRUE;
5322 for (q = multilib_extra; *q != '\0'; q++)