1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-96, 1997 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)
85 #define exit __posix_exit
88 /* Define O_RDONLY if the system hasn't defined it for us. */
97 /* Test if something is a normal file. */
99 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
102 /* Test if something is a directory. */
104 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
107 /* By default there is no special suffix for executables. */
108 #ifdef EXECUTABLE_SUFFIX
109 #define HAVE_EXECUTABLE_SUFFIX
111 #define EXECUTABLE_SUFFIX ""
114 /* By default, the suffix for object files is ".o". */
116 #define HAVE_OBJECT_SUFFIX
118 #define OBJECT_SUFFIX ".o"
121 /* By default, colon separates directories in a path. */
122 #ifndef PATH_SEPARATOR
123 #define PATH_SEPARATOR ':'
126 #ifndef DIR_SEPARATOR
127 #define DIR_SEPARATOR '/'
130 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
132 #define obstack_chunk_alloc xmalloc
133 #define obstack_chunk_free free
136 extern char *getenv ();
138 extern char *choose_temp_base PROTO((void));
144 #ifndef HAVE_STRERROR
147 extern const char *const sys_errlist[];
149 extern char *sys_errlist[];
152 extern char *strerror();
155 /* If a stage of compilation returns an exit status >= 1,
156 compilation of that file ceases. */
158 #define MIN_FATAL_STATUS 1
160 /* Flag saying to print the directories gcc will search through looking for
161 programs, libraries, etc. */
163 static int print_search_dirs;
165 /* Flag saying to print the full filename of this file
166 as found through our usual search mechanism. */
168 static char *print_file_name = NULL;
170 /* As print_file_name, but search for executable file. */
172 static char *print_prog_name = NULL;
174 /* Flag saying to print the relative path we'd use to
175 find libgcc.a given the current compiler flags. */
177 static int print_multi_directory;
179 /* Flag saying to print the list of subdirectories and
180 compiler flags used to select them in a standard form. */
182 static int print_multi_lib;
184 /* Flag indicating whether we should print the command and arguments */
186 static int verbose_flag;
188 /* Nonzero means write "temp" files in source directory
189 and use the source file's name in them, and don't delete them. */
191 static int save_temps_flag;
193 /* The compiler version. */
195 static char *compiler_version;
197 /* The target version specified with -V */
199 static char *spec_version = DEFAULT_TARGET_VERSION;
201 /* The target machine specified with -b. */
203 static char *spec_machine = DEFAULT_TARGET_MACHINE;
205 /* Nonzero if cross-compiling.
206 When -b is used, the value comes from the `specs' file. */
209 static char *cross_compile = "1";
211 static char *cross_compile = "0";
214 /* The number of errors that have occurred; the link phase will not be
215 run if this is non-zero. */
216 static int error_count = 0;
218 /* This is the obstack which we use to allocate many strings. */
220 static struct obstack obstack;
222 /* This is the obstack to build an environment variable to pass to
223 collect2 that describes all of the relevant switches of what to
224 pass the compiler in building the list of pointers to constructors
227 static struct obstack collect_obstack;
229 extern char *version_string;
231 /* Forward declaration for prototypes. */
234 static void init_spec PROTO((void));
235 static void read_specs PROTO((char *, int));
236 static void set_spec PROTO((char *, char *));
237 static struct compiler *lookup_compiler PROTO((char *, int, char *));
238 static char *build_search_list PROTO((struct path_prefix *, char *, int));
239 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
240 static char *find_a_file PROTO((struct path_prefix *, char *, int));
241 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
242 static char *skip_whitespace PROTO((char *));
243 static void record_temp_file PROTO((char *, int, int));
244 static void delete_if_ordinary PROTO((char *));
245 static void delete_temp_files PROTO((void));
246 static void delete_failure_queue PROTO((void));
247 static void clear_failure_queue PROTO((void));
248 static int check_live_switch PROTO((int, int));
249 static char *handle_braces PROTO((char *));
250 static char *save_string PROTO((char *, int));
251 static char *concat PVPROTO((char *, ...));
252 static int do_spec PROTO((char *));
253 static int do_spec_1 PROTO((char *, int, char *));
254 static char *find_file PROTO((char *));
255 static int is_directory PROTO((char *, char *, int));
256 static void validate_switches PROTO((char *));
257 static void validate_all_switches PROTO((void));
258 static void give_switch PROTO((int, int, int));
259 static int used_arg PROTO((char *, int));
260 static int default_arg PROTO((char *, int));
261 static void set_multilib_dir PROTO((void));
262 static void print_multilib_info PROTO((void));
263 static void pfatal_with_name PROTO((char *));
264 static void perror_with_name PROTO((char *));
265 static void pfatal_pexecute PROTO((char *, char *));
267 static void fatal PVPROTO((char *, ...));
268 static void error PVPROTO((char *, ...));
270 /* We must not provide any prototype here, even if ANSI C. */
271 static void fatal PROTO(());
272 static void error PROTO(());
279 /* Specs are strings containing lines, each of which (if not blank)
280 is made up of a program name, and arguments separated by spaces.
281 The program name must be exact and start from root, since no path
282 is searched and it is unreliable to depend on the current working directory.
283 Redirection of input or output is not supported; the subprograms must
284 accept filenames saying what files to read and write.
286 In addition, the specs can contain %-sequences to substitute variable text
287 or for conditional text. Here is a table of all defined %-sequences.
288 Note that spaces are not generated automatically around the results of
289 expanding these sequences; therefore, you can concatenate them together
290 or with constant text in a single argument.
292 %% substitute one % into the program name or argument.
293 %i substitute the name of the input file being processed.
294 %b substitute the basename of the input file being processed.
295 This is the substring up to (and not including) the last period
296 and not including the directory.
297 %g substitute the temporary-file-name-base. This is a string chosen
298 once per compilation. Different temporary file names are made by
299 concatenation of constant strings on the end, as in `%g.s'.
300 %g also has the same effect of %d.
301 %u like %g, but make the temporary file name unique.
302 %U returns the last file name generated with %u.
303 %d marks the argument containing or following the %d as a
304 temporary file name, so that that file will be deleted if CC exits
305 successfully. Unlike %g, this contributes no text to the argument.
306 %w marks the argument containing or following the %w as the
307 "output file" of this compilation. This puts the argument
308 into the sequence of arguments that %o will substitute later.
310 like %{...} but mark last argument supplied within
311 as a file to be deleted on failure.
312 %o substitutes the names of all the output files, with spaces
313 automatically placed around them. You should write spaces
314 around the %o as well or the results are undefined.
315 %o is for use in the specs for running the linker.
316 Input files whose names have no recognized suffix are not compiled
317 at all, but they are included among the output files, so they will
319 %O substitutes the suffix for object files.
320 %p substitutes the standard macro predefinitions for the
321 current target machine. Use this when running cpp.
322 %P like %p, but puts `__' before and after the name of each macro.
323 (Except macros that already have __.)
325 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
326 %s current argument is the name of a library or startup file of some sort.
327 Search for that file in a standard list of directories
328 and substitute the full name found.
329 %eSTR Print STR as an error message. STR is terminated by a newline.
330 Use this when inconsistent options are detected.
331 %x{OPTION} Accumulate an option for %X.
332 %X Output the accumulated linker options specified by compilations.
333 %Y Output the accumulated assembler options specified by compilations.
334 %Z Output the accumulated preprocessor options specified by compilations.
335 %v1 Substitute the major version number of GCC.
336 (For version 2.5.n, this is 2.)
337 %v2 Substitute the minor version number of GCC.
338 (For version 2.5.n, this is 5.)
339 %a process ASM_SPEC as a spec.
340 This allows config.h to specify part of the spec for running as.
341 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
342 used here. This can be used to run a post-processor after the
343 assembler has done it's job.
344 %D Dump out a -L option for each directory in startfile_prefixes.
345 If multilib_dir is set, extra entries are generated with it affixed.
346 %l process LINK_SPEC as a spec.
347 %L process LIB_SPEC as a spec.
348 %G process LIBGCC_SPEC as a spec.
349 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
350 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
351 %c process SIGNED_CHAR_SPEC as a spec.
352 %C process CPP_SPEC as a spec. A capital C is actually used here.
353 %1 process CC1_SPEC as a spec.
354 %2 process CC1PLUS_SPEC as a spec.
355 %| output "-" if the input for the current command is coming from a pipe.
356 %* substitute the variable part of a matched option. (See below.)
357 Note that each comma in the substituted string is replaced by
359 %{S} substitutes the -S switch, if that switch was given to CC.
360 If that switch was not specified, this substitutes nothing.
361 Here S is a metasyntactic variable.
362 %{S*} substitutes all the switches specified to CC whose names start
363 with -S. This is used for -o, -D, -I, etc; switches that take
364 arguments. CC considers `-o foo' as being one switch whose
365 name starts with `o'. %{o*} would substitute this text,
366 including the space; thus, two arguments would be generated.
367 %{^S*} likewise, but don't put a blank between a switch and any args.
368 %{S*:X} substitutes X if one or more switches whose names start with -S are
369 specified to CC. Note that the tail part of the -S option
370 (i.e. the part matched by the `*') will be substituted for each
371 occurrence of %* within X.
372 %{S:X} substitutes X, but only if the -S switch was given to CC.
373 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
374 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
375 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
376 %{.S:X} substitutes X, but only if processing a file with suffix S.
377 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
378 %(Spec) processes a specification defined in a specs file as *Spec:
379 %[Spec] as above, but put __ around -D arguments
381 The conditional text X in a %{S:X} or %{!S:X} construct may contain
382 other nested % constructs or spaces, or even newlines. They are
383 processed as usual, as described above.
385 The -O, -f, -m, and -W switches are handled specifically in these
386 constructs. If another value of -O or the negated form of a -f, -m, or
387 -W switch is found later in the command line, the earlier switch
388 value is ignored, except with {S*} where S is just one letter; this
389 passes all matching options.
391 The character | is used to indicate that a command should be piped to
392 the following command, but only if -pipe is specified.
394 Note that it is built into CC which switches take arguments and which
395 do not. You might think it would be useful to generalize this to
396 allow each compiler's spec to say which switches take arguments. But
397 this cannot be done in a consistent fashion. CC cannot even decide
398 which input files have been specified without knowing which switches
399 take arguments, and it must know which input files to compile in order
400 to tell which compilers to run.
402 CC also knows implicitly that arguments starting in `-l' are to be
403 treated as compiler output files, and passed to the linker in their
404 proper position among the other output files. */
406 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
408 /* config.h can define ASM_SPEC to provide extra args to the assembler
409 or extra switch-translations. */
414 /* config.h can define ASM_FINAL_SPEC to run a post processor after
415 the assembler has run. */
416 #ifndef ASM_FINAL_SPEC
417 #define ASM_FINAL_SPEC ""
420 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
421 or extra switch-translations. */
426 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
427 or extra switch-translations. */
432 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
433 or extra switch-translations. */
435 #define CC1PLUS_SPEC ""
438 /* config.h can define LINK_SPEC to provide extra args to the linker
439 or extra switch-translations. */
444 /* config.h can define LIB_SPEC to override the default libraries. */
446 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
449 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
452 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
453 /* Have gcc do the search for libgcc.a. */
454 #define LIBGCC_SPEC "libgcc.a%s"
456 #define LIBGCC_SPEC "-lgcc"
460 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
461 #ifndef STARTFILE_SPEC
462 #define STARTFILE_SPEC \
463 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
466 /* config.h can define SWITCHES_NEED_SPACES to control which options
467 require spaces between the option and the argument. */
468 #ifndef SWITCHES_NEED_SPACES
469 #define SWITCHES_NEED_SPACES ""
472 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
474 #define ENDFILE_SPEC ""
477 /* This spec is used for telling cpp whether char is signed or not. */
478 #ifndef SIGNED_CHAR_SPEC
479 /* Use #if rather than ?:
480 because MIPS C compiler rejects like ?: in initializers. */
481 #if DEFAULT_SIGNED_CHAR
482 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
484 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
488 static char *cpp_spec = CPP_SPEC;
489 static char *cpp_predefines = CPP_PREDEFINES;
490 static char *cc1_spec = CC1_SPEC;
491 static char *cc1plus_spec = CC1PLUS_SPEC;
492 static char *signed_char_spec = SIGNED_CHAR_SPEC;
493 static char *asm_spec = ASM_SPEC;
494 static char *asm_final_spec = ASM_FINAL_SPEC;
495 static char *link_spec = LINK_SPEC;
496 static char *lib_spec = LIB_SPEC;
497 static char *libgcc_spec = LIBGCC_SPEC;
498 static char *endfile_spec = ENDFILE_SPEC;
499 static char *startfile_spec = STARTFILE_SPEC;
500 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
502 /* Some compilers have limits on line lengths, and the multilib_select
503 and/or multilib_matches strings can be very long, so we build them at
505 static struct obstack multilib_obstack;
506 static char *multilib_select;
507 static char *multilib_matches;
508 static char *multilib_defaults;
509 #include "multilib.h"
511 /* Check whether a particular argument is a default argument. */
513 #ifndef MULTILIB_DEFAULTS
514 #define MULTILIB_DEFAULTS { "" }
517 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
520 struct user_specs *next;
524 static struct user_specs *user_specs_head, *user_specs_tail;
526 /* This defines which switch letters take arguments. */
528 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
529 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
530 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
531 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
532 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
533 || (CHAR) == 'B' || (CHAR) == 'b')
535 #ifndef SWITCH_TAKES_ARG
536 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
539 /* This defines which multi-letter switches take arguments. */
541 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
542 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
543 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
544 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
545 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
546 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
547 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
549 #ifndef WORD_SWITCH_TAKES_ARG
550 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
553 /* Record the mapping from file suffixes for compilation specs. */
557 char *suffix; /* Use this compiler for input files
558 whose names end in this suffix. */
560 char *spec[4]; /* To use this compiler, concatenate these
561 specs and pass to do_spec. */
564 /* Pointer to a vector of `struct compiler' that gives the spec for
565 compiling a file, based on its suffix.
566 A file that does not end in any of these suffixes will be passed
567 unchanged to the loader and nothing else will be done to it.
569 An entry containing two 0s is used to terminate the vector.
571 If multiple entries match a file, the last matching one is used. */
573 static struct compiler *compilers;
575 /* Number of entries in `compilers', not counting the null terminator. */
577 static int n_compilers;
579 /* The default list of file name suffixes and their compilation specs. */
581 static struct compiler default_compilers[] =
583 /* Add lists of suffixes of known languages here. If those languages
584 were no present when we built the driver, we will hit these copies
585 and given a more meaningful error than "file not used since
586 linking is not done". */
587 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
588 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
589 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
590 {".fpp", "#Fortran"},
591 /* Next come the entries for C. */
594 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
595 %{C:%{!E:%eGNU C does not support -C without using -E}}\
596 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
597 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
598 %{ansi:-trigraphs -D__STRICT_ANSI__}\
599 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
600 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
601 %{traditional-cpp:-traditional}\
602 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
603 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
604 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
605 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
606 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
607 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
609 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
610 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
612 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
613 %{!pipe:%g.s} %A\n }}}}"},
615 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
616 %{C:%{!E:%eGNU C does not support -C without using -E}}\
617 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
618 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
619 %{ansi:-trigraphs -D__STRICT_ANSI__}\
620 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
621 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
622 %{traditional-cpp:-traditional}\
623 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
625 %{!E:%e-E required when input is from standard input}"},
626 {".m", "@objective-c"},
628 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
629 %{C:%{!E:%eGNU C does not support -C without using -E}}\
630 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
631 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
632 %{ansi:-trigraphs -D__STRICT_ANSI__}\
633 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
634 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
635 %{traditional-cpp:-traditional}\
636 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
637 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
638 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
639 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
640 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
641 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
642 -lang-objc %{gen-decls} \
644 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
645 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
647 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
648 %{!pipe:%g.s} %A\n }}}}"},
651 "%{!E:%eCompilation of header file requested} \
652 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
653 %{C:%{!E:%eGNU C does not support -C without using -E}}\
654 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
655 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
656 %{ansi:-trigraphs -D__STRICT_ANSI__}\
657 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
658 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
659 %{traditional-cpp:-traditional}\
660 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
662 {".i", "@cpp-output"},
664 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
665 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
666 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
668 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
669 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
671 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
672 %{!pipe:%g.s} %A\n }}}}"},
673 {".s", "@assembler"},
675 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
676 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
678 {".S", "@assembler-with-cpp"},
679 {"@assembler-with-cpp",
680 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
681 %{C:%{!E:%eGNU C does not support -C without using -E}}\
682 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
683 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
684 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
685 %{traditional-cpp:-traditional}\
686 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
687 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
688 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
689 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
690 %{!pipe:%g.s} %A\n }}}}"},
692 /* Mark end of table */
696 /* Number of elements in default_compilers, not counting the terminator. */
698 static int n_default_compilers
699 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
701 /* Here is the spec for running the linker, after compiling all files. */
703 /* -u* was put back because both BSD and SysV seem to support it. */
704 /* %{static:} simply prevents an error message if the target machine
705 doesn't handle -static. */
706 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
707 scripts which exist in user specified directories, or in standard
709 #ifdef LINK_LIBGCC_SPECIAL
710 /* Don't generate -L options. */
711 static char *link_command_spec = "\
713 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
714 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
715 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
717 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
718 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
723 static char *link_command_spec = "\
725 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
726 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
727 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
728 %{static:} %{L*} %D %o\
729 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
730 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
735 /* A vector of options to give to the linker.
736 These options are accumulated by %x,
737 and substituted into the linker command with %X. */
738 static int n_linker_options;
739 static char **linker_options;
741 /* A vector of options to give to the assembler.
742 These options are accumulated by -Wa,
743 and substituted into the assembler command with %Y. */
744 static int n_assembler_options;
745 static char **assembler_options;
747 /* A vector of options to give to the preprocessor.
748 These options are accumulated by -Wp,
749 and substituted into the preprocessor command with %Z. */
750 static int n_preprocessor_options;
751 static char **preprocessor_options;
753 /* Define how to map long options into short ones. */
755 /* This structure describes one mapping. */
758 /* The long option's name. */
760 /* The equivalent short option. */
762 /* Argument info. A string of flag chars; NULL equals no options.
763 a => argument required.
764 o => argument optional.
765 j => join argument to equivalent, making one word.
766 * => require other text after NAME as an argument. */
770 /* This is the table of mappings. Mappings are tried sequentially
771 for each option encountered; the first one that matches, wins. */
773 struct option_map option_map[] =
775 {"--all-warnings", "-Wall", 0},
776 {"--ansi", "-ansi", 0},
777 {"--assemble", "-S", 0},
778 {"--assert", "-A", "a"},
779 {"--comments", "-C", 0},
780 {"--compile", "-c", 0},
781 {"--debug", "-g", "oj"},
782 {"--define-macro", "-D", "aj"},
783 {"--dependencies", "-M", 0},
784 {"--dump", "-d", "a"},
785 {"--dumpbase", "-dumpbase", "a"},
786 {"--entry", "-e", 0},
787 {"--extra-warnings", "-W", 0},
788 {"--for-assembler", "-Wa", "a"},
789 {"--for-linker", "-Xlinker", "a"},
790 {"--force-link", "-u", "a"},
791 {"--imacros", "-imacros", "a"},
792 {"--include", "-include", "a"},
793 {"--include-barrier", "-I-", 0},
794 {"--include-directory", "-I", "aj"},
795 {"--include-directory-after", "-idirafter", "a"},
796 {"--include-prefix", "-iprefix", "a"},
797 {"--include-with-prefix", "-iwithprefix", "a"},
798 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
799 {"--include-with-prefix-after", "-iwithprefix", "a"},
800 {"--language", "-x", "a"},
801 {"--library-directory", "-L", "a"},
802 {"--machine", "-m", "aj"},
803 {"--machine-", "-m", "*j"},
804 {"--no-line-commands", "-P", 0},
805 {"--no-precompiled-includes", "-noprecomp", 0},
806 {"--no-standard-includes", "-nostdinc", 0},
807 {"--no-standard-libraries", "-nostdlib", 0},
808 {"--no-warnings", "-w", 0},
809 {"--optimize", "-O", "oj"},
810 {"--output", "-o", "a"},
811 {"--pedantic", "-pedantic", 0},
812 {"--pedantic-errors", "-pedantic-errors", 0},
813 {"--pipe", "-pipe", 0},
814 {"--prefix", "-B", "a"},
815 {"--preprocess", "-E", 0},
816 {"--print-search-dirs", "-print-search-dirs", 0},
817 {"--print-file-name", "-print-file-name=", "aj"},
818 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
819 {"--print-missing-file-dependencies", "-MG", 0},
820 {"--print-multi-lib", "-print-multi-lib", 0},
821 {"--print-multi-directory", "-print-multi-directory", 0},
822 {"--print-prog-name", "-print-prog-name=", "aj"},
823 {"--profile", "-p", 0},
824 {"--profile-blocks", "-a", 0},
825 {"--quiet", "-q", 0},
826 {"--save-temps", "-save-temps", 0},
827 {"--shared", "-shared", 0},
828 {"--silent", "-q", 0},
829 {"--specs", "-specs=", "aj"},
830 {"--static", "-static", 0},
831 {"--symbolic", "-symbolic", 0},
832 {"--target", "-b", "a"},
833 {"--trace-includes", "-H", 0},
834 {"--traditional", "-traditional", 0},
835 {"--traditional-cpp", "-traditional-cpp", 0},
836 {"--trigraphs", "-trigraphs", 0},
837 {"--undefine-macro", "-U", "aj"},
838 {"--use-version", "-V", "a"},
839 {"--user-dependencies", "-MM", 0},
840 {"--verbose", "-v", 0},
841 {"--version", "-dumpversion", 0},
842 {"--warn-", "-W", "*j"},
843 {"--write-dependencies", "-MD", 0},
844 {"--write-user-dependencies", "-MMD", 0},
848 /* Translate the options described by *ARGCP and *ARGVP.
849 Make a new vector and store it back in *ARGVP,
850 and store its length in *ARGVC. */
853 translate_options (argcp, argvp)
859 char **argv = *argvp;
860 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
864 newv[newindex++] = argv[i++];
868 /* Translate -- options. */
869 if (argv[i][0] == '-' && argv[i][1] == '-')
871 /* Find a mapping that applies to this option. */
872 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
874 int optlen = strlen (option_map[j].name);
875 int arglen = strlen (argv[i]);
876 int complen = arglen > optlen ? optlen : arglen;
877 char *arginfo = option_map[j].arg_info;
882 if (!strncmp (argv[i], option_map[j].name, complen))
889 k < sizeof (option_map) / sizeof (option_map[0]);
891 if (strlen (option_map[k].name) >= arglen
892 && !strncmp (argv[i], option_map[k].name, arglen))
894 error ("Ambiguous abbreviation %s", argv[i]);
898 if (k != sizeof (option_map) / sizeof (option_map[0]))
904 /* If the option has an argument, accept that. */
905 if (argv[i][optlen] == '=')
906 arg = argv[i] + optlen + 1;
908 /* If this mapping requires extra text at end of name,
909 accept that as "argument". */
910 else if (index (arginfo, '*') != 0)
911 arg = argv[i] + optlen;
913 /* Otherwise, extra text at end means mismatch.
914 Try other mappings. */
919 else if (index (arginfo, '*') != 0)
921 error ("Incomplete `%s' option", option_map[j].name);
925 /* Handle arguments. */
926 if (index (arginfo, 'a') != 0)
932 error ("Missing argument to `%s' option",
940 else if (index (arginfo, '*') != 0)
942 else if (index (arginfo, 'o') == 0)
945 error ("Extraneous argument to `%s' option",
950 /* Store the translation as one argv elt or as two. */
951 if (arg != 0 && index (arginfo, 'j') != 0)
952 newv[newindex++] = concat (option_map[j].equivalent, arg,
956 newv[newindex++] = option_map[j].equivalent;
957 newv[newindex++] = arg;
960 newv[newindex++] = option_map[j].equivalent;
968 /* Handle old-fashioned options--just copy them through,
969 with their arguments. */
970 else if (argv[i][0] == '-')
972 char *p = argv[i] + 1;
976 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
977 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
978 else if (WORD_SWITCH_TAKES_ARG (p))
979 nskip += WORD_SWITCH_TAKES_ARG (p);
980 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
983 else if (! strcmp (p, "Xlinker"))
986 /* Watch out for an option at the end of the command line that
987 is missing arguments, and avoid skipping past the end of the
989 if (nskip + i > argc)
994 newv[newindex++] = argv[i++];
999 /* Ordinary operands, or +e options. */
1000 newv[newindex++] = argv[i++];
1013 #ifdef HAVE_STRERROR
1019 static char buffer[30];
1021 return "cannot access";
1023 if (e > 0 && e < sys_nerr)
1024 return sys_errlist[e];
1026 sprintf (buffer, "Unknown error %d", e);
1037 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1038 be considered whitespace. */
1039 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1041 else if (*p == '\n' || *p == ' ' || *p == '\t')
1045 while (*p != '\n') p++;
1055 /* Structure to keep track of the specs that have been defined so far.
1056 These are accessed using %(specname) or %[specname] in a compiler
1061 /* The following 2 fields must be first */
1062 /* to allow EXTRA_SPECS to be initialized */
1063 char *name; /* name of the spec. */
1064 char *ptr; /* available ptr if no static pointer */
1066 /* The following fields are not initialized */
1067 /* by EXTRA_SPECS */
1068 char **ptr_spec; /* pointer to the spec itself. */
1069 struct spec_list *next; /* Next spec in linked list. */
1070 int name_len; /* length of the name */
1071 int alloc_p; /* whether string was allocated */
1074 #define INIT_STATIC_SPEC(NAME,PTR) \
1075 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1077 /* List of statically defined specs */
1078 static struct spec_list static_specs[] = {
1079 INIT_STATIC_SPEC ("asm", &asm_spec),
1080 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1081 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1082 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1083 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1084 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1085 INIT_STATIC_SPEC ("link", &link_spec),
1086 INIT_STATIC_SPEC ("lib", &lib_spec),
1087 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1088 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1089 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1090 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1091 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1092 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1093 INIT_STATIC_SPEC ("version", &compiler_version),
1094 INIT_STATIC_SPEC ("multilib", &multilib_select),
1095 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1096 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1097 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1100 #ifdef EXTRA_SPECS /* additional specs needed */
1101 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1104 /* List of dynamically allocates specs that have been defined so far. */
1106 static struct spec_list *specs = (struct spec_list *)0;
1109 /* Initialize the specs lookup routines. */
1114 struct spec_list *next = (struct spec_list *)0;
1115 struct spec_list *sl = (struct spec_list *)0;
1119 return; /* already initialized */
1122 fprintf (stderr, "Using builtin specs.\n");
1125 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1127 sl = &extra_specs[i];
1129 sl->name_len = strlen (sl->name);
1130 sl->ptr_spec = &sl->ptr;
1135 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1137 sl = &static_specs[i];
1146 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1147 removed; If the spec starts with a + then SPEC is added to the end of the
1151 set_spec (name, spec)
1155 struct spec_list *sl;
1157 int name_len = strlen (name);
1160 /* If this is the first call, initialize the statically allocated specs */
1163 struct spec_list *next = (struct spec_list *)0;
1164 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1166 sl = &static_specs[i];
1173 /* See if the spec already exists */
1174 for (sl = specs; sl; sl = sl->next)
1175 if (name_len == sl->name_len && !strcmp (sl->name, name))
1180 /* Not found - make it */
1181 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1182 sl->name = save_string (name, strlen (name));
1183 sl->name_len = name_len;
1184 sl->ptr_spec = &sl->ptr;
1186 *(sl->ptr_spec) = "";
1191 old_spec = *(sl->ptr_spec);
1192 *(sl->ptr_spec) = ((spec[0] == '+' && isspace (spec[1]))
1193 ? concat (old_spec, spec + 1, NULL_PTR)
1194 : save_string (spec, strlen (spec)));
1198 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1201 /* Free the old spec */
1202 if (old_spec && sl->alloc_p)
1208 /* Accumulate a command (program name and args), and run it. */
1210 /* Vector of pointers to arguments in the current line of specifications. */
1212 static char **argbuf;
1214 /* Number of elements allocated in argbuf. */
1216 static int argbuf_length;
1218 /* Number of elements in argbuf currently in use (containing args). */
1220 static int argbuf_index;
1222 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1223 temp file. Used only if MKTEMP_EACH_FILE. */
1225 static struct temp_name {
1226 char *suffix; /* suffix associated with the code. */
1227 int length; /* strlen (suffix). */
1228 int unique; /* Indicates whether %g or %u/%U was used. */
1229 char *filename; /* associated filename. */
1230 int filename_length; /* strlen (filename). */
1231 struct temp_name *next;
1234 /* Number of commands executed so far. */
1236 static int execution_count;
1238 /* Number of commands that exited with a signal. */
1240 static int signal_count;
1242 /* Name with which this program was invoked. */
1244 static char *programname;
1246 /* Structures to keep track of prefixes to try when looking for files. */
1250 char *prefix; /* String to prepend to the path. */
1251 struct prefix_list *next; /* Next in linked list. */
1252 int require_machine_suffix; /* Don't use without machine_suffix. */
1253 /* 2 means try both machine_suffix and just_machine_suffix. */
1254 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1259 struct prefix_list *plist; /* List of prefixes to try */
1260 int max_len; /* Max length of a prefix in PLIST */
1261 char *name; /* Name of this list (used in config stuff) */
1264 /* List of prefixes to try when looking for executables. */
1266 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1268 /* List of prefixes to try when looking for startup (crt0) files. */
1270 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1272 /* List of prefixes to try when looking for include files. */
1274 static struct path_prefix include_prefixes = { 0, 0, "include" };
1276 /* Suffix to attach to directories searched for commands.
1277 This looks like `MACHINE/VERSION/'. */
1279 static char *machine_suffix = 0;
1281 /* Suffix to attach to directories searched for commands.
1282 This is just `MACHINE/'. */
1284 static char *just_machine_suffix = 0;
1286 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1288 static char *gcc_exec_prefix;
1290 /* Default prefixes to attach to command names. */
1292 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1293 #undef MD_EXEC_PREFIX
1294 #undef MD_STARTFILE_PREFIX
1295 #undef MD_STARTFILE_PREFIX_1
1298 #ifndef STANDARD_EXEC_PREFIX
1299 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1300 #endif /* !defined STANDARD_EXEC_PREFIX */
1302 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1303 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1304 #ifdef MD_EXEC_PREFIX
1305 static char *md_exec_prefix = MD_EXEC_PREFIX;
1308 #ifndef STANDARD_STARTFILE_PREFIX
1309 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1310 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1312 #ifdef MD_STARTFILE_PREFIX
1313 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1315 #ifdef MD_STARTFILE_PREFIX_1
1316 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1318 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1319 static char *standard_startfile_prefix_1 = "/lib/";
1320 static char *standard_startfile_prefix_2 = "/usr/lib/";
1322 #ifndef TOOLDIR_BASE_PREFIX
1323 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1325 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1326 static char *tooldir_prefix;
1328 /* Subdirectory to use for locating libraries. Set by
1329 set_multilib_dir based on the compilation options. */
1331 static char *multilib_dir;
1333 /* Clear out the vector of arguments (after a command is executed). */
1341 /* Add one argument to the vector at the end.
1342 This is done when a space is seen or at the end of the line.
1343 If DELETE_ALWAYS is nonzero, the arg is a filename
1344 and the file should be deleted eventually.
1345 If DELETE_FAILURE is nonzero, the arg is a filename
1346 and the file should be deleted if this compilation fails. */
1349 store_arg (arg, delete_always, delete_failure)
1351 int delete_always, delete_failure;
1353 if (argbuf_index + 1 == argbuf_length)
1355 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1358 argbuf[argbuf_index++] = arg;
1359 argbuf[argbuf_index] = 0;
1361 if (delete_always || delete_failure)
1362 record_temp_file (arg, delete_always, delete_failure);
1365 /* Read compilation specs from a file named FILENAME,
1366 replacing the default ones.
1368 A suffix which starts with `*' is a definition for
1369 one of the machine-specific sub-specs. The "suffix" should be
1370 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1371 The corresponding spec is stored in asm_spec, etc.,
1372 rather than in the `compilers' vector.
1374 Anything invalid in the file is a fatal error. */
1377 read_specs (filename, main_p)
1383 struct stat statbuf;
1388 fprintf (stderr, "Reading specs from %s\n", filename);
1390 /* Open and stat the file. */
1391 desc = open (filename, O_RDONLY, 0);
1393 pfatal_with_name (filename);
1394 if (stat (filename, &statbuf) < 0)
1395 pfatal_with_name (filename);
1397 /* Read contents of file into BUFFER. */
1398 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1399 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1401 pfatal_with_name (filename);
1402 buffer[readlen] = 0;
1405 /* Scan BUFFER for specs, putting them in the vector. */
1411 char *in, *out, *p1, *p2, *p3;
1413 /* Advance P in BUFFER to the next nonblank nocomment line. */
1414 p = skip_whitespace (p);
1418 /* Is this a special command that starts with '%'? */
1419 /* Don't allow this for the main specs file, since it would
1420 encourage people to overwrite it. */
1421 if (*p == '%' && !main_p)
1424 while (*p && *p != '\n') p++;
1427 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1428 && (p1[ sizeof ("%include")-1 ] == ' '
1429 || p1[ sizeof ("%include")-1 ] == '\t'))
1433 p1 += sizeof ("%include");
1434 while (*p1 == ' ' || *p1 == '\t') p1++;
1436 if (*p1++ != '<' || p[-2] != '>')
1437 fatal ("specs %%include syntax malformed after %d characters",
1441 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1442 read_specs (new_filename ? new_filename : p1, FALSE);
1445 else if (!strncmp (p1, "%include_noerr", sizeof ("%include_noerr")-1)
1446 && (p1[ sizeof ("%include_noerr")-1 ] == ' '
1447 || p1[ sizeof ("%include_noerr")-1 ] == '\t'))
1451 p1 += sizeof ("%include_noerr");
1452 while (*p1 == ' ' || *p1 == '\t') p1++;
1454 if (*p1++ != '<' || p[-2] != '>')
1455 fatal ("specs %%include syntax malformed after %d characters",
1459 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1461 read_specs (new_filename, FALSE);
1462 else if (verbose_flag)
1463 fprintf (stderr, "Could not find specs file %s\n", p1);
1466 else if (!strncmp (p1, "%rename", sizeof ("%rename")-1)
1467 && (p1[ sizeof ("%rename")-1 ] == ' '
1468 || p1[ sizeof ("%rename")-1 ] == '\t'))
1471 struct spec_list *sl;
1473 /* Get original name */
1474 p1 += sizeof ("%rename");
1475 while (*p1 == ' ' || *p1 == '\t') p1++;
1477 fatal ("specs %%rename syntax malformed after %d characters",
1481 while (*p2 && !isspace (*p2)) p2++;
1482 if (*p2 != ' ' && *p2 != '\t')
1483 fatal ("specs %%rename syntax malformed after %d characters",
1488 while (*p2 == ' ' || *p2 == '\t') p2++;
1490 fatal ("specs %%rename syntax malformed after %d characters",
1493 /* Get new spec name */
1495 while (*p3 && !isspace (*p3)) p3++;
1497 fatal ("specs %%rename syntax malformed after %d characters",
1501 for (sl = specs; sl; sl = sl->next)
1502 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1506 fatal ("specs %s spec was not found to be renamed", p1);
1508 if (!strcmp (p1, p2))
1513 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1515 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1519 set_spec (p2, *(sl->ptr_spec));
1521 free (*(sl->ptr_spec));
1523 *(sl->ptr_spec) = "";
1528 fatal ("specs unknown %% command after %d characters",
1532 /* Find the colon that should end the suffix. */
1534 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1535 /* The colon shouldn't be missing. */
1537 fatal ("specs file malformed after %d characters", p1 - buffer);
1538 /* Skip back over trailing whitespace. */
1540 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1541 /* Copy the suffix to a string. */
1542 suffix = save_string (p, p2 - p);
1543 /* Find the next line. */
1544 p = skip_whitespace (p1 + 1);
1546 fatal ("specs file malformed after %d characters", p - buffer);
1548 /* Find next blank line. */
1549 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1550 /* Specs end at the blank line and do not include the newline. */
1551 spec = save_string (p, p1 - p);
1554 /* Delete backslash-newline sequences from the spec. */
1559 if (in[0] == '\\' && in[1] == '\n')
1561 else if (in[0] == '#')
1563 while (*in && *in != '\n') in++;
1570 if (suffix[0] == '*')
1572 if (! strcmp (suffix, "*link_command"))
1573 link_command_spec = spec;
1575 set_spec (suffix + 1, spec);
1579 /* Add this pair to the vector. */
1581 = ((struct compiler *)
1582 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1583 compilers[n_compilers].suffix = suffix;
1584 bzero ((char *) compilers[n_compilers].spec,
1585 sizeof compilers[n_compilers].spec);
1586 compilers[n_compilers].spec[0] = spec;
1588 bzero ((char *) &compilers[n_compilers],
1589 sizeof compilers[n_compilers]);
1593 link_command_spec = spec;
1596 if (link_command_spec == 0)
1597 fatal ("spec file has no spec for linking");
1600 /* Record the names of temporary files we tell compilers to write,
1601 and delete them at the end of the run. */
1603 /* This is the common prefix we use to make temp file names.
1604 It is chosen once for each run of this program.
1605 It is substituted into a spec by %g.
1606 Thus, all temp file names contain this prefix.
1607 In practice, all temp file names start with this prefix.
1609 This prefix comes from the envvar TMPDIR if it is defined;
1610 otherwise, from the P_tmpdir macro if that is defined;
1611 otherwise, in /usr/tmp or /tmp;
1612 or finally the current directory if all else fails. */
1614 static char *temp_filename;
1616 /* Length of the prefix. */
1618 static int temp_filename_length;
1620 /* Define the list of temporary files to delete. */
1625 struct temp_file *next;
1628 /* Queue of files to delete on success or failure of compilation. */
1629 static struct temp_file *always_delete_queue;
1630 /* Queue of files to delete on failure of compilation. */
1631 static struct temp_file *failure_delete_queue;
1633 /* Record FILENAME as a file to be deleted automatically.
1634 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1635 otherwise delete it in any case.
1636 FAIL_DELETE nonzero means delete it if a compilation step fails;
1637 otherwise delete it in any case. */
1640 record_temp_file (filename, always_delete, fail_delete)
1645 register char *name;
1646 name = xmalloc (strlen (filename) + 1);
1647 strcpy (name, filename);
1651 register struct temp_file *temp;
1652 for (temp = always_delete_queue; temp; temp = temp->next)
1653 if (! strcmp (name, temp->name))
1655 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1656 temp->next = always_delete_queue;
1658 always_delete_queue = temp;
1664 register struct temp_file *temp;
1665 for (temp = failure_delete_queue; temp; temp = temp->next)
1666 if (! strcmp (name, temp->name))
1668 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1669 temp->next = failure_delete_queue;
1671 failure_delete_queue = temp;
1676 /* Delete all the temporary files whose names we previously recorded. */
1679 delete_if_ordinary (name)
1686 printf ("Delete %s? (y or n) ", name);
1690 while ((c = getchar ()) != '\n' && c != EOF) ;
1691 if (i == 'y' || i == 'Y')
1693 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1694 if (unlink (name) < 0)
1696 perror_with_name (name);
1700 delete_temp_files ()
1702 register struct temp_file *temp;
1704 for (temp = always_delete_queue; temp; temp = temp->next)
1705 delete_if_ordinary (temp->name);
1706 always_delete_queue = 0;
1709 /* Delete all the files to be deleted on error. */
1712 delete_failure_queue ()
1714 register struct temp_file *temp;
1716 for (temp = failure_delete_queue; temp; temp = temp->next)
1717 delete_if_ordinary (temp->name);
1721 clear_failure_queue ()
1723 failure_delete_queue = 0;
1726 /* Routine to add variables to the environment. We do this to pass
1727 the pathname of the gcc driver, and the directories search to the
1728 collect2 program, which is being run as ld. This way, we can be
1729 sure of executing the right compiler when collect2 wants to build
1730 constructors and destructors. Since the environment variables we
1731 use come from an obstack, we don't have to worry about allocating
1740 #ifndef VMS /* nor about VMS */
1742 extern char **environ;
1743 char **old_environ = environ;
1747 int str_len = strlen (str);
1751 while ((ch = *p++) != '\0' && ch != '=')
1757 /* Search for replacing an existing environment variable, and
1758 count the number of total environment variables. */
1759 for (envp = old_environ; *envp; envp++)
1762 if (!strncmp (str, *envp, name_len))
1769 /* Add a new environment variable */
1770 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1772 bcopy ((char *) old_environ, (char *) (environ + 1),
1773 sizeof (char *) * (num_envs+1));
1778 #endif /* HAVE_PUTENV */
1781 /* Build a list of search directories from PATHS.
1782 PREFIX is a string to prepend to the list.
1783 If CHECK_DIR_P is non-zero we ensure the directory exists.
1784 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1785 It is also used by the --print-search-dirs flag. */
1788 build_search_list (paths, prefix, check_dir_p)
1789 struct path_prefix *paths;
1793 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1795 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1796 int first_time = TRUE;
1797 struct prefix_list *pprefix;
1799 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1801 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1803 int len = strlen (pprefix->prefix);
1807 || is_directory (pprefix->prefix, machine_suffix, 0)))
1810 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1813 obstack_grow (&collect_obstack, pprefix->prefix, len);
1814 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1817 if (just_machine_suffix
1818 && pprefix->require_machine_suffix == 2
1820 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1823 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1826 obstack_grow (&collect_obstack, pprefix->prefix, len);
1827 obstack_grow (&collect_obstack, just_machine_suffix,
1831 if (!pprefix->require_machine_suffix)
1834 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1837 obstack_grow (&collect_obstack, pprefix->prefix, len);
1840 obstack_1grow (&collect_obstack, '\0');
1841 return obstack_finish (&collect_obstack);
1844 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1848 putenv_from_prefixes (paths, env_var)
1849 struct path_prefix *paths;
1852 putenv (build_search_list (paths, env_var, 1));
1855 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1856 access to check permissions.
1857 Return 0 if not found, otherwise return its name, allocated with malloc. */
1860 find_a_file (pprefix, name, mode)
1861 struct path_prefix *pprefix;
1866 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1867 struct prefix_list *pl;
1868 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1871 len += strlen (machine_suffix);
1873 temp = xmalloc (len);
1875 /* Determine the filename to execute (special case for absolute paths). */
1877 if (*name == '/' || *name == DIR_SEPARATOR)
1879 if (access (name, mode))
1881 strcpy (temp, name);
1886 for (pl = pprefix->plist; pl; pl = pl->next)
1890 /* Some systems have a suffix for executable files.
1891 So try appending that first. */
1892 if (file_suffix[0] != 0)
1894 strcpy (temp, pl->prefix);
1895 strcat (temp, machine_suffix);
1896 strcat (temp, name);
1897 strcat (temp, file_suffix);
1898 if (access (temp, mode) == 0)
1900 if (pl->used_flag_ptr != 0)
1901 *pl->used_flag_ptr = 1;
1906 /* Now try just the name. */
1907 strcpy (temp, pl->prefix);
1908 strcat (temp, machine_suffix);
1909 strcat (temp, name);
1910 if (access (temp, mode) == 0)
1912 if (pl->used_flag_ptr != 0)
1913 *pl->used_flag_ptr = 1;
1918 /* Certain prefixes are tried with just the machine type,
1919 not the version. This is used for finding as, ld, etc. */
1920 if (just_machine_suffix && pl->require_machine_suffix == 2)
1922 /* Some systems have a suffix for executable files.
1923 So try appending that first. */
1924 if (file_suffix[0] != 0)
1926 strcpy (temp, pl->prefix);
1927 strcat (temp, just_machine_suffix);
1928 strcat (temp, name);
1929 strcat (temp, file_suffix);
1930 if (access (temp, mode) == 0)
1932 if (pl->used_flag_ptr != 0)
1933 *pl->used_flag_ptr = 1;
1938 strcpy (temp, pl->prefix);
1939 strcat (temp, just_machine_suffix);
1940 strcat (temp, name);
1941 if (access (temp, mode) == 0)
1943 if (pl->used_flag_ptr != 0)
1944 *pl->used_flag_ptr = 1;
1949 /* Certain prefixes can't be used without the machine suffix
1950 when the machine or version is explicitly specified. */
1951 if (!pl->require_machine_suffix)
1953 /* Some systems have a suffix for executable files.
1954 So try appending that first. */
1955 if (file_suffix[0] != 0)
1957 strcpy (temp, pl->prefix);
1958 strcat (temp, name);
1959 strcat (temp, file_suffix);
1960 if (access (temp, mode) == 0)
1962 if (pl->used_flag_ptr != 0)
1963 *pl->used_flag_ptr = 1;
1968 strcpy (temp, pl->prefix);
1969 strcat (temp, name);
1970 if (access (temp, mode) == 0)
1972 if (pl->used_flag_ptr != 0)
1973 *pl->used_flag_ptr = 1;
1983 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1984 at the start of the list, otherwise it goes at the end.
1986 If WARN is nonzero, we will warn if no file is found
1987 through this prefix. WARN should point to an int
1988 which will be set to 1 if this entry is used.
1990 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1991 the complete value of machine_suffix.
1992 2 means try both machine_suffix and just_machine_suffix. */
1995 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1996 struct path_prefix *pprefix;
1999 int require_machine_suffix;
2002 struct prefix_list *pl, **prev;
2005 if (!first && pprefix->plist)
2007 for (pl = pprefix->plist; pl->next; pl = pl->next)
2012 prev = &pprefix->plist;
2014 /* Keep track of the longest prefix */
2016 len = strlen (prefix);
2017 if (len > pprefix->max_len)
2018 pprefix->max_len = len;
2020 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2021 pl->prefix = save_string (prefix, len);
2022 pl->require_machine_suffix = require_machine_suffix;
2023 pl->used_flag_ptr = warn;
2030 pl->next = (struct prefix_list *) 0;
2034 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2037 unused_prefix_warnings (pprefix)
2038 struct path_prefix *pprefix;
2040 struct prefix_list *pl = pprefix->plist;
2044 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2046 if (pl->require_machine_suffix && machine_suffix)
2047 error ("file path prefix `%s%s' never used", pl->prefix,
2050 error ("file path prefix `%s' never used", pl->prefix);
2052 /* Prevent duplicate warnings. */
2053 *pl->used_flag_ptr = 1;
2059 /* Get rid of all prefixes built up so far in *PLISTP. */
2062 free_path_prefix (pprefix)
2063 struct path_prefix *pprefix;
2065 struct prefix_list *pl = pprefix->plist;
2066 struct prefix_list *temp;
2072 free (temp->prefix);
2073 free ((char *) temp);
2075 pprefix->plist = (struct prefix_list *) 0;
2078 /* Execute the command specified by the arguments on the current line of spec.
2079 When using pipes, this includes several piped-together commands
2080 with `|' between them.
2082 Return 0 if successful, -1 if failed. */
2088 int n_commands; /* # of command. */
2092 char *prog; /* program name. */
2093 char **argv; /* vector of args. */
2094 int pid; /* pid of process for this command. */
2097 struct command *commands; /* each command buffer with above info. */
2099 /* Count # of piped commands. */
2100 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2101 if (strcmp (argbuf[i], "|") == 0)
2104 /* Get storage for each command. */
2106 = (struct command *) alloca (n_commands * sizeof (struct command));
2108 /* Split argbuf into its separate piped processes,
2109 and record info about each one.
2110 Also search for the programs that are to be run. */
2112 commands[0].prog = argbuf[0]; /* first command. */
2113 commands[0].argv = &argbuf[0];
2114 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2116 commands[0].argv[0] = string;
2118 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2119 if (strcmp (argbuf[i], "|") == 0)
2120 { /* each command. */
2121 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
2122 fatal ("-pipe not supported");
2124 argbuf[i] = 0; /* termination of command args. */
2125 commands[n_commands].prog = argbuf[i + 1];
2126 commands[n_commands].argv = &argbuf[i + 1];
2127 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2129 commands[n_commands].argv[0] = string;
2133 argbuf[argbuf_index] = 0;
2135 /* If -v, print what we are about to do, and maybe query. */
2139 /* Print each piped command as a separate line. */
2140 for (i = 0; i < n_commands ; i++)
2144 for (j = commands[i].argv; *j; j++)
2145 fprintf (stderr, " %s", *j);
2147 /* Print a pipe symbol after all but the last command. */
2148 if (i + 1 != n_commands)
2149 fprintf (stderr, " |");
2150 fprintf (stderr, "\n");
2154 fprintf (stderr, "\nGo ahead? (y or n) ");
2158 while (getchar () != '\n') ;
2159 if (i != 'y' && i != 'Y')
2164 /* Run each piped subprocess. */
2166 for (i = 0; i < n_commands; i++)
2168 char *errmsg_fmt, *errmsg_arg;
2169 char *string = commands[i].argv[0];
2171 commands[i].pid = pexecute (string, commands[i].argv,
2172 programname, temp_filename,
2173 &errmsg_fmt, &errmsg_arg,
2174 ((i == 0 ? PEXECUTE_FIRST : 0)
2175 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2176 | (string == commands[i].prog
2177 ? PEXECUTE_SEARCH : 0)
2178 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2180 if (commands[i].pid == -1)
2181 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2183 if (string != commands[i].prog)
2189 /* Wait for all the subprocesses to finish.
2190 We don't care what order they finish in;
2191 we know that N_COMMANDS waits will get them all.
2192 Ignore subprocesses that we don't know about,
2193 since they can be spawned by the process that exec'ed us. */
2198 for (i = 0; i < n_commands; )
2204 pid = pwait (commands[i].pid, &status, 0);
2208 for (j = 0; j < n_commands; j++)
2209 if (commands[j].pid == pid)
2214 if (WIFSIGNALED (status))
2216 fatal ("Internal compiler error: program %s got fatal signal %d",
2217 commands[j].prog, WTERMSIG (status));
2221 else if (WIFEXITED (status)
2222 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2232 /* Find all the switches given to us
2233 and make a vector describing them.
2234 The elements of the vector are strings, one per switch given.
2235 If a switch uses following arguments, then the `part1' field
2236 is the switch itself and the `args' field
2237 is a null-terminated vector containing the following arguments.
2238 The `live_cond' field is 1 if the switch is true in a conditional spec,
2239 -1 if false (overridden by a later switch), and is initialized to zero.
2240 The `valid' field is nonzero if any spec has looked at this switch;
2241 if it remains zero at the end of the run, it must be meaningless. */
2251 static struct switchstr *switches;
2253 static int n_switches;
2261 /* Also a vector of input files specified. */
2263 static struct infile *infiles;
2265 static int n_infiles;
2267 /* And a vector of corresponding output files is made up later. */
2269 static char **outfiles;
2271 /* Used to track if none of the -B paths are used. */
2274 /* Used to track if standard path isn't used and -b or -V is specified. */
2275 static int warn_std;
2277 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2278 static int *warn_std_ptr = 0;
2281 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2283 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2284 is true if we should look for an executable suffix as well. */
2287 convert_filename (name, do_exe)
2292 int len = strlen (name);
2294 #ifdef HAVE_OBJECT_SUFFIX
2295 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2297 && name[len - 2] == '.'
2298 && name[len - 1] == 'o')
2300 obstack_grow (&obstack, name, len - 2);
2301 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2302 name = obstack_finish (&obstack);
2306 #ifdef HAVE_EXECUTABLE_SUFFIX
2307 /* If there is no filetype, make it the executable suffix (which includes
2308 the "."). But don't get confused if we have just "-o". */
2309 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2312 for (i = len - 1; i >= 0; i--)
2313 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2316 for (i++; i < len; i++)
2320 obstack_grow (&obstack, name, len);
2321 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2322 name = obstack_finish (&obstack);
2329 /* Create the vector `switches' and its contents.
2330 Store its length in `n_switches'. */
2333 process_command (argc, argv)
2339 char *spec_lang = 0;
2340 int last_language_n_infiles;
2343 int lang_n_infiles = 0;
2345 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2350 /* Figure compiler version from version string. */
2352 compiler_version = save_string (version_string, strlen (version_string));
2353 for (temp = compiler_version; *temp; ++temp)
2362 /* Set up the default search paths. */
2364 if (gcc_exec_prefix)
2366 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2367 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2370 /* COMPILER_PATH and LIBRARY_PATH have values
2371 that are lists of directory names with colons. */
2373 temp = getenv ("COMPILER_PATH");
2376 char *startp, *endp;
2377 char *nstore = (char *) alloca (strlen (temp) + 3);
2379 startp = endp = temp;
2382 if (*endp == PATH_SEPARATOR || *endp == 0)
2384 strncpy (nstore, startp, endp-startp);
2386 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2387 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2389 nstore[endp-startp] = DIR_SEPARATOR;
2390 nstore[endp-startp+1] = 0;
2393 nstore[endp-startp] = 0;
2394 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2395 add_prefix (&include_prefixes,
2396 concat (nstore, "include", NULL_PTR),
2400 endp = startp = endp + 1;
2407 temp = getenv ("LIBRARY_PATH");
2408 if (temp && *cross_compile == '0')
2410 char *startp, *endp;
2411 char *nstore = (char *) alloca (strlen (temp) + 3);
2413 startp = endp = temp;
2416 if (*endp == PATH_SEPARATOR || *endp == 0)
2418 strncpy (nstore, startp, endp-startp);
2420 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2421 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2423 nstore[endp-startp] = DIR_SEPARATOR;
2424 nstore[endp-startp+1] = 0;
2427 nstore[endp-startp] = 0;
2428 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2431 endp = startp = endp + 1;
2438 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2439 temp = getenv ("LPATH");
2440 if (temp && *cross_compile == '0')
2442 char *startp, *endp;
2443 char *nstore = (char *) alloca (strlen (temp) + 3);
2445 startp = endp = temp;
2448 if (*endp == PATH_SEPARATOR || *endp == 0)
2450 strncpy (nstore, startp, endp-startp);
2452 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2453 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2455 nstore[endp-startp] = DIR_SEPARATOR;
2456 nstore[endp-startp+1] = 0;
2459 nstore[endp-startp] = 0;
2460 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2463 endp = startp = endp + 1;
2470 /* Convert new-style -- options to old-style. */
2471 translate_options (&argc, &argv);
2473 #ifdef LANG_SPECIFIC_DRIVER
2474 /* Do language-specific adjustment/addition of flags. */
2475 lang_specific_driver (&fatal, &argc, &argv);
2478 /* Scan argv twice. Here, the first time, just count how many switches
2479 there will be in their vector, and how many input files in theirs.
2480 Here we also parse the switches that cc itself uses (e.g. -v). */
2482 for (i = 1; i < argc; i++)
2484 if (! strcmp (argv[i], "-dumpspecs"))
2486 struct spec_list *sl;
2488 for (sl = specs; sl; sl = sl->next)
2489 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2492 else if (! strcmp (argv[i], "-dumpversion"))
2494 printf ("%s\n", version_string);
2497 else if (! strcmp (argv[i], "-dumpmachine"))
2499 printf ("%s\n", spec_machine);
2502 else if (! strcmp (argv[i], "-print-search-dirs"))
2503 print_search_dirs = 1;
2504 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2505 print_file_name = "libgcc.a";
2506 else if (! strncmp (argv[i], "-print-file-name=", 17))
2507 print_file_name = argv[i] + 17;
2508 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2509 print_prog_name = argv[i] + 17;
2510 else if (! strcmp (argv[i], "-print-multi-lib"))
2511 print_multi_lib = 1;
2512 else if (! strcmp (argv[i], "-print-multi-directory"))
2513 print_multi_directory = 1;
2514 else if (! strncmp (argv[i], "-Wa,", 4))
2517 /* Pass the rest of this option to the assembler. */
2519 n_assembler_options++;
2520 if (!assembler_options)
2522 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2525 = (char **) xrealloc (assembler_options,
2526 n_assembler_options * sizeof (char **));
2528 /* Split the argument at commas. */
2530 for (j = 4; argv[i][j]; j++)
2531 if (argv[i][j] == ',')
2533 assembler_options[n_assembler_options - 1]
2534 = save_string (argv[i] + prev, j - prev);
2535 n_assembler_options++;
2537 = (char **) xrealloc (assembler_options,
2538 n_assembler_options * sizeof (char **));
2541 /* Record the part after the last comma. */
2542 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2544 else if (! strncmp (argv[i], "-Wp,", 4))
2547 /* Pass the rest of this option to the preprocessor. */
2549 n_preprocessor_options++;
2550 if (!preprocessor_options)
2551 preprocessor_options
2552 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2554 preprocessor_options
2555 = (char **) xrealloc (preprocessor_options,
2556 n_preprocessor_options * sizeof (char **));
2558 /* Split the argument at commas. */
2560 for (j = 4; argv[i][j]; j++)
2561 if (argv[i][j] == ',')
2563 preprocessor_options[n_preprocessor_options - 1]
2564 = save_string (argv[i] + prev, j - prev);
2565 n_preprocessor_options++;
2566 preprocessor_options
2567 = (char **) xrealloc (preprocessor_options,
2568 n_preprocessor_options * sizeof (char **));
2571 /* Record the part after the last comma. */
2572 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2574 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2575 /* The +e options to the C++ front-end. */
2577 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2580 /* Split the argument at commas. */
2581 for (j = 3; argv[i][j]; j++)
2582 n_infiles += (argv[i][j] == ',');
2584 else if (strcmp (argv[i], "-Xlinker") == 0)
2587 fatal ("argument to `-Xlinker' is missing");
2592 else if (strncmp (argv[i], "-l", 2) == 0)
2594 else if (strcmp (argv[i], "-save-temps") == 0)
2596 save_temps_flag = 1;
2599 else if (strcmp (argv[i], "-specs") == 0)
2601 struct user_specs *user = (struct user_specs *)
2602 xmalloc (sizeof (struct user_specs));
2604 fatal ("argument to `-specs' is missing");
2606 user->next = (struct user_specs *)0;
2607 user->filename = argv[i];
2608 if (user_specs_tail)
2609 user_specs_tail->next = user;
2611 user_specs_head = user;
2612 user_specs_tail = user;
2614 else if (strncmp (argv[i], "-specs=", 7) == 0)
2616 struct user_specs *user = (struct user_specs *)
2617 xmalloc (sizeof (struct user_specs));
2618 if (strlen (argv[i]) == 7)
2619 fatal ("argument to `-specs=' is missing");
2621 user->next = (struct user_specs *)0;
2622 user->filename = argv[i]+7;
2623 if (user_specs_tail)
2624 user_specs_tail->next = user;
2626 user_specs_head = user;
2627 user_specs_tail = user;
2629 else if (argv[i][0] == '-' && argv[i][1] != 0)
2631 register char *p = &argv[i][1];
2632 register int c = *p;
2638 if (p[1] == 0 && i + 1 == argc)
2639 fatal ("argument to `-b' is missing");
2641 spec_machine = argv[++i];
2643 spec_machine = p + 1;
2645 warn_std_ptr = &warn_std;
2650 int *temp = (int *) xmalloc (sizeof (int));
2652 if (p[1] == 0 && i + 1 == argc)
2653 fatal ("argument to `-B' is missing");
2658 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2659 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2660 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2663 /* As a kludge, if the arg is "[foo/]stageN/", just add
2664 "[foo/]include" to the include prefix. */
2666 int len = strlen (value);
2669 && (value[len - 8] == '/'
2670 || value[len - 8] == DIR_SEPARATOR)))
2671 && strncmp (value + len - 7, "stage", 5) == 0
2672 && isdigit (value[len - 2])
2673 && (value[len - 1] == '/'
2674 || value[len - 1] == DIR_SEPARATOR))
2677 add_prefix (&include_prefixes, "include",
2681 char *string = xmalloc (len + 1);
2682 strncpy (string, value, len-7);
2683 strcpy (string+len-7, "include");
2684 add_prefix (&include_prefixes, string,
2693 case 'v': /* Print our subcommands and print versions. */
2695 /* If they do anything other than exactly `-v', don't set
2696 verbose_flag; rather, continue on to give the error. */
2704 if (p[1] == 0 && i + 1 == argc)
2705 fatal ("argument to `-V' is missing");
2707 spec_version = argv[++i];
2709 spec_version = p + 1;
2710 compiler_version = spec_version;
2711 warn_std_ptr = &warn_std;
2725 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2726 argv[i] = convert_filename (argv[i], 1);
2728 argv[i+1] = convert_filename (argv[i+1], 1);
2736 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2737 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2738 else if (WORD_SWITCH_TAKES_ARG (p))
2739 i += WORD_SWITCH_TAKES_ARG (p);
2749 if (have_c && have_o && lang_n_infiles > 1)
2750 fatal ("cannot specify -o with -c and multiple compilations");
2752 /* Set up the search paths before we go looking for config files. */
2754 /* These come before the md prefixes so that we will find gcc's subcommands
2755 (such as cpp) rather than those of the host system. */
2756 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2757 as well as trying the machine and the version. */
2759 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2760 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2763 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2764 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2766 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2767 dir_separator_str, NULL_PTR);
2769 /* If tooldir is relative, base it on exec_prefixes. A relative
2770 tooldir lets us move the installed tree as a unit.
2772 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2773 directories, so that we can search both the user specified directory
2774 and the standard place. */
2776 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2778 if (gcc_exec_prefix)
2780 char *gcc_exec_tooldir_prefix
2781 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2782 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2784 add_prefix (&exec_prefixes,
2785 concat (gcc_exec_tooldir_prefix, "bin",
2786 dir_separator_str, NULL_PTR),
2788 add_prefix (&startfile_prefixes,
2789 concat (gcc_exec_tooldir_prefix, "lib",
2790 dir_separator_str, NULL_PTR),
2794 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2795 dir_separator_str, spec_version,
2796 dir_separator_str, tooldir_prefix, NULL_PTR);
2799 add_prefix (&exec_prefixes,
2800 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2802 add_prefix (&startfile_prefixes,
2803 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2806 /* More prefixes are enabled in main, after we read the specs file
2807 and determine whether this is cross-compilation or not. */
2810 /* Then create the space for the vectors and scan again. */
2812 switches = ((struct switchstr *)
2813 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2814 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2817 last_language_n_infiles = -1;
2819 /* This, time, copy the text of each switch and store a pointer
2820 to the copy in the vector of switches.
2821 Store all the infiles in their vector. */
2823 for (i = 1; i < argc; i++)
2825 /* Just skip the switches that were handled by the preceding loop. */
2826 if (! strncmp (argv[i], "-Wa,", 4))
2828 else if (! strncmp (argv[i], "-Wp,", 4))
2830 else if (! strcmp (argv[i], "-print-search-dirs"))
2832 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2834 else if (! strncmp (argv[i], "-print-file-name=", 17))
2836 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2838 else if (! strcmp (argv[i], "-print-multi-lib"))
2840 else if (! strcmp (argv[i], "-print-multi-directory"))
2842 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2844 /* Compensate for the +e options to the C++ front-end;
2845 they're there simply for cfront call-compatibility. We do
2846 some magic in default_compilers to pass them down properly.
2847 Note we deliberately start at the `+' here, to avoid passing
2848 -e0 or -e1 down into the linker. */
2849 switches[n_switches].part1 = &argv[i][0];
2850 switches[n_switches].args = 0;
2851 switches[n_switches].live_cond = 0;
2852 switches[n_switches].valid = 0;
2855 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2858 /* Split the argument at commas. */
2860 for (j = 4; argv[i][j]; j++)
2861 if (argv[i][j] == ',')
2863 infiles[n_infiles].language = 0;
2864 infiles[n_infiles++].name
2865 = save_string (argv[i] + prev, j - prev);
2868 /* Record the part after the last comma. */
2869 infiles[n_infiles].language = 0;
2870 infiles[n_infiles++].name = argv[i] + prev;
2872 else if (strcmp (argv[i], "-Xlinker") == 0)
2874 infiles[n_infiles].language = 0;
2875 infiles[n_infiles++].name = argv[++i];
2877 else if (strncmp (argv[i], "-l", 2) == 0)
2879 infiles[n_infiles].language = 0;
2880 infiles[n_infiles++].name = argv[i];
2882 else if (strcmp (argv[i], "-specs") == 0)
2884 else if (strncmp (argv[i], "-specs=", 7) == 0)
2886 /* -save-temps overrides -pipe, so that temp files are produced */
2887 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
2888 error ("Warning: -pipe ignored since -save-temps specified");
2889 else if (argv[i][0] == '-' && argv[i][1] != 0)
2891 register char *p = &argv[i][1];
2892 register int c = *p;
2896 if (p[1] == 0 && i + 1 == argc)
2897 fatal ("argument to `-x' is missing");
2899 spec_lang = argv[++i];
2902 if (! strcmp (spec_lang, "none"))
2903 /* Suppress the warning if -xnone comes after the last input
2904 file, because alternate command interfaces like g++ might
2905 find it useful to place -xnone after each input file. */
2908 last_language_n_infiles = n_infiles;
2911 switches[n_switches].part1 = p;
2912 /* Deal with option arguments in separate argv elements. */
2913 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2914 || WORD_SWITCH_TAKES_ARG (p))
2917 int n_args = WORD_SWITCH_TAKES_ARG (p);
2921 /* Count only the option arguments in separate argv elements. */
2922 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2924 if (i + n_args >= argc)
2925 fatal ("argument to `-%s' is missing", p);
2926 switches[n_switches].args
2927 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2929 switches[n_switches].args[j++] = argv[++i];
2930 /* Null-terminate the vector. */
2931 switches[n_switches].args[j] = 0;
2933 else if (index (switches_need_spaces, c))
2935 /* On some systems, ld cannot handle some options without
2936 a space. So split the option from its argument. */
2937 char *part1 = (char *) xmalloc (2);
2941 switches[n_switches].part1 = part1;
2942 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2943 switches[n_switches].args[0] = xmalloc (strlen (p));
2944 strcpy (switches[n_switches].args[0], &p[1]);
2945 switches[n_switches].args[1] = 0;
2948 switches[n_switches].args = 0;
2950 switches[n_switches].live_cond = 0;
2951 switches[n_switches].valid = 0;
2952 /* This is always valid, since gcc.c itself understands it. */
2953 if (!strcmp (p, "save-temps"))
2954 switches[n_switches].valid = 1;
2957 char ch = switches[n_switches].part1[0];
2958 if (ch == 'V' || ch == 'b' || ch == 'B')
2959 switches[n_switches].valid = 1;
2965 #ifdef HAVE_OBJECT_SUFFIX
2966 argv[i] = convert_filename (argv[i], 0);
2969 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2971 perror_with_name (argv[i]);
2976 infiles[n_infiles].language = spec_lang;
2977 infiles[n_infiles++].name = argv[i];
2982 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2983 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2985 switches[n_switches].part1 = 0;
2986 infiles[n_infiles].name = 0;
2989 /* Process a spec string, accumulating and running commands. */
2991 /* These variables describe the input file name.
2992 input_file_number is the index on outfiles of this file,
2993 so that the output file name can be stored for later use by %o.
2994 input_basename is the start of the part of the input file
2995 sans all directory names, and basename_length is the number
2996 of characters starting there excluding the suffix .c or whatever. */
2998 static char *input_filename;
2999 static int input_file_number;
3000 static int input_filename_length;
3001 static int basename_length;
3002 static char *input_basename;
3003 static char *input_suffix;
3005 /* These are variables used within do_spec and do_spec_1. */
3007 /* Nonzero if an arg has been started and not yet terminated
3008 (with space, tab or newline). */
3009 static int arg_going;
3011 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3012 is a temporary file name. */
3013 static int delete_this_arg;
3015 /* Nonzero means %w has been seen; the next arg to be terminated
3016 is the output file name of this compilation. */
3017 static int this_is_output_file;
3019 /* Nonzero means %s has been seen; the next arg to be terminated
3020 is the name of a library file and we should try the standard
3021 search dirs for it. */
3022 static int this_is_library_file;
3024 /* Nonzero means that the input of this command is coming from a pipe. */
3025 static int input_from_pipe;
3027 /* Process the spec SPEC and run the commands specified therein.
3028 Returns 0 if the spec is successfully processed; -1 if failed. */
3038 delete_this_arg = 0;
3039 this_is_output_file = 0;
3040 this_is_library_file = 0;
3041 input_from_pipe = 0;
3043 value = do_spec_1 (spec, 0, NULL_PTR);
3045 /* Force out any unfinished command.
3046 If -pipe, this forces out the last command if it ended in `|'. */
3049 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3052 if (argbuf_index > 0)
3059 /* Process the sub-spec SPEC as a portion of a larger spec.
3060 This is like processing a whole spec except that we do
3061 not initialize at the beginning and we do not supply a
3062 newline by default at the end.
3063 INSWITCH nonzero means don't process %-sequences in SPEC;
3064 in this case, % is treated as an ordinary character.
3065 This is used while substituting switches.
3066 INSWITCH nonzero also causes SPC not to terminate an argument.
3068 Value is zero unless a line was finished
3069 and the command on that line reported an error. */
3072 do_spec_1 (spec, inswitch, soft_matched_part)
3075 char *soft_matched_part;
3077 register char *p = spec;
3084 /* If substituting a switch, treat all chars like letters.
3085 Otherwise, NL, SPC, TAB and % are special. */
3086 switch (inswitch ? 'a' : c)
3089 /* End of line: finish any pending argument,
3090 then run the pending command if one has been started. */
3093 obstack_1grow (&obstack, 0);
3094 string = obstack_finish (&obstack);
3095 if (this_is_library_file)
3096 string = find_file (string);
3097 store_arg (string, delete_this_arg, this_is_output_file);
3098 if (this_is_output_file)
3099 outfiles[input_file_number] = string;
3103 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3105 for (i = 0; i < n_switches; i++)
3106 if (!strcmp (switches[i].part1, "pipe"))
3109 /* A `|' before the newline means use a pipe here,
3110 but only if -pipe was specified.
3111 Otherwise, execute now and don't pass the `|' as an arg. */
3114 input_from_pipe = 1;
3115 switches[i].valid = 1;
3122 if (argbuf_index > 0)
3128 /* Reinitialize for a new command, and for a new argument. */
3131 delete_this_arg = 0;
3132 this_is_output_file = 0;
3133 this_is_library_file = 0;
3134 input_from_pipe = 0;
3138 /* End any pending argument. */
3141 obstack_1grow (&obstack, 0);
3142 string = obstack_finish (&obstack);
3143 if (this_is_library_file)
3144 string = find_file (string);
3145 store_arg (string, delete_this_arg, this_is_output_file);
3146 if (this_is_output_file)
3147 outfiles[input_file_number] = string;
3151 obstack_1grow (&obstack, c);
3157 /* Space or tab ends an argument if one is pending. */
3160 obstack_1grow (&obstack, 0);
3161 string = obstack_finish (&obstack);
3162 if (this_is_library_file)
3163 string = find_file (string);
3164 store_arg (string, delete_this_arg, this_is_output_file);
3165 if (this_is_output_file)
3166 outfiles[input_file_number] = string;
3168 /* Reinitialize for a new argument. */
3170 delete_this_arg = 0;
3171 this_is_output_file = 0;
3172 this_is_library_file = 0;
3179 fatal ("Invalid specification! Bug in cc.");
3182 obstack_grow (&obstack, input_basename, basename_length);
3187 delete_this_arg = 2;
3190 /* Dump out the directories specified with LIBRARY_PATH,
3191 followed by the absolute directories
3192 that we search for startfiles. */
3195 struct prefix_list *pl = startfile_prefixes.plist;
3197 char *buffer = (char *) xmalloc (bufsize);
3200 for (; pl; pl = pl->next)
3202 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3203 /* Used on systems which record the specified -L dirs
3204 and use them to search for dynamic linking. */
3205 /* Relative directories always come from -B,
3206 and it is better not to use them for searching
3207 at run time. In particular, stage1 loses */
3208 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3211 /* Try subdirectory if there is one. */
3212 if (multilib_dir != NULL)
3216 if (strlen (pl->prefix) + strlen (machine_suffix)
3218 bufsize = (strlen (pl->prefix)
3219 + strlen (machine_suffix)) * 2 + 1;
3220 buffer = (char *) xrealloc (buffer, bufsize);
3221 strcpy (buffer, pl->prefix);
3222 strcat (buffer, machine_suffix);
3223 if (is_directory (buffer, multilib_dir, 1))
3225 do_spec_1 ("-L", 0, NULL_PTR);
3226 #ifdef SPACE_AFTER_L_OPTION
3227 do_spec_1 (" ", 0, NULL_PTR);
3229 do_spec_1 (buffer, 1, NULL_PTR);
3230 do_spec_1 (multilib_dir, 1, NULL_PTR);
3231 /* Make this a separate argument. */
3232 do_spec_1 (" ", 0, NULL_PTR);
3235 if (!pl->require_machine_suffix)
3237 if (is_directory (pl->prefix, multilib_dir, 1))
3239 do_spec_1 ("-L", 0, NULL_PTR);
3240 #ifdef SPACE_AFTER_L_OPTION
3241 do_spec_1 (" ", 0, NULL_PTR);
3243 do_spec_1 (pl->prefix, 1, NULL_PTR);
3244 do_spec_1 (multilib_dir, 1, NULL_PTR);
3245 /* Make this a separate argument. */
3246 do_spec_1 (" ", 0, NULL_PTR);
3252 if (is_directory (pl->prefix, machine_suffix, 1))
3254 do_spec_1 ("-L", 0, NULL_PTR);
3255 #ifdef SPACE_AFTER_L_OPTION
3256 do_spec_1 (" ", 0, NULL_PTR);
3258 do_spec_1 (pl->prefix, 1, NULL_PTR);
3259 /* Remove slash from machine_suffix. */
3260 if (strlen (machine_suffix) >= bufsize)
3261 bufsize = strlen (machine_suffix) * 2 + 1;
3262 buffer = (char *) xrealloc (buffer, bufsize);
3263 strcpy (buffer, machine_suffix);
3264 idx = strlen (buffer);
3265 if (buffer[idx - 1] == '/'
3266 || buffer[idx - 1] == DIR_SEPARATOR)
3267 buffer[idx - 1] = 0;
3268 do_spec_1 (buffer, 1, NULL_PTR);
3269 /* Make this a separate argument. */
3270 do_spec_1 (" ", 0, NULL_PTR);
3273 if (!pl->require_machine_suffix)
3275 if (is_directory (pl->prefix, "", 1))
3277 do_spec_1 ("-L", 0, NULL_PTR);
3278 #ifdef SPACE_AFTER_L_OPTION
3279 do_spec_1 (" ", 0, NULL_PTR);
3281 /* Remove slash from pl->prefix. */
3282 if (strlen (pl->prefix) >= bufsize)
3283 bufsize = strlen (pl->prefix) * 2 + 1;
3284 buffer = (char *) xrealloc (buffer, bufsize);
3285 strcpy (buffer, pl->prefix);
3286 idx = strlen (buffer);
3287 if (buffer[idx - 1] == '/'
3288 || buffer[idx - 1] == DIR_SEPARATOR)
3289 buffer[idx - 1] = 0;
3290 do_spec_1 (buffer, 1, NULL_PTR);
3291 /* Make this a separate argument. */
3292 do_spec_1 (" ", 0, NULL_PTR);
3301 /* {...:%efoo} means report an error with `foo' as error message
3302 and don't execute any more commands for this file. */
3306 while (*p != 0 && *p != '\n') p++;
3307 buf = (char *) alloca (p - q + 1);
3308 strncpy (buf, q, p - q);
3318 if (save_temps_flag)
3320 obstack_grow (&obstack, input_basename, basename_length);
3321 delete_this_arg = 0;
3325 #ifdef MKTEMP_EACH_FILE
3326 /* ??? This has a problem: the total number of
3327 values mktemp can return is limited.
3328 That matters for the names of object files.
3329 In 2.4, do something about that. */
3330 struct temp_name *t;
3332 while (*p == '.' || isalpha (*p)
3333 || (p[0] == '%' && p[1] == 'O'))
3336 /* See if we already have an association of %g/%u/%U and
3338 for (t = temp_names; t; t = t->next)
3339 if (t->length == p - suffix
3340 && strncmp (t->suffix, suffix, p - suffix) == 0
3341 && t->unique == (c != 'g'))
3344 /* Make a new association if needed. %u requires one. */
3345 if (t == 0 || c == 'u')
3349 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3350 t->next = temp_names;
3353 t->length = p - suffix;
3354 t->suffix = save_string (suffix, p - suffix);
3355 t->unique = (c != 'g');
3356 temp_filename = choose_temp_base ();
3357 temp_filename_length = strlen (temp_filename);
3358 t->filename = temp_filename;
3359 t->filename_length = temp_filename_length;
3362 obstack_grow (&obstack, t->filename, t->filename_length);
3363 delete_this_arg = 1;
3365 obstack_grow (&obstack, temp_filename, temp_filename_length);
3366 if (c == 'u' || c == 'U')
3372 sprintf (buff, "%d", unique);
3373 obstack_grow (&obstack, buff, strlen (buff));
3376 delete_this_arg = 1;
3382 obstack_grow (&obstack, input_filename, input_filename_length);
3388 struct prefix_list *pl = include_prefixes.plist;
3390 if (gcc_exec_prefix)
3392 do_spec_1 ("-iprefix", 1, NULL_PTR);
3393 /* Make this a separate argument. */
3394 do_spec_1 (" ", 0, NULL_PTR);
3395 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3396 do_spec_1 (" ", 0, NULL_PTR);
3399 for (; pl; pl = pl->next)
3401 do_spec_1 ("-isystem", 1, NULL_PTR);
3402 /* Make this a separate argument. */
3403 do_spec_1 (" ", 0, NULL_PTR);
3404 do_spec_1 (pl->prefix, 1, NULL_PTR);
3405 do_spec_1 (" ", 0, NULL_PTR);
3411 for (i = 0; i < n_infiles; i++)
3412 store_arg (outfiles[i], 0, 0);
3416 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3421 this_is_library_file = 1;
3425 this_is_output_file = 1;
3430 int cur_index = argbuf_index;
3431 /* Handle the {...} following the %W. */
3434 p = handle_braces (p + 1);
3437 /* If any args were output, mark the last one for deletion
3439 if (argbuf_index != cur_index)
3440 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3444 /* %x{OPTION} records OPTION for %X to output. */
3450 /* Skip past the option value and make a copy. */
3455 string = save_string (p1 + 1, p - p1 - 2);
3457 /* See if we already recorded this option. */
3458 for (i = 0; i < n_linker_options; i++)
3459 if (! strcmp (string, linker_options[i]))
3465 /* This option is new; add it. */
3467 if (!linker_options)
3469 = (char **) xmalloc (n_linker_options * sizeof (char **));
3472 = (char **) xrealloc (linker_options,
3473 n_linker_options * sizeof (char **));
3475 linker_options[n_linker_options - 1] = string;
3479 /* Dump out the options accumulated previously using %x. */
3481 for (i = 0; i < n_linker_options; i++)
3483 do_spec_1 (linker_options[i], 1, NULL_PTR);
3484 /* Make each accumulated option a separate argument. */
3485 do_spec_1 (" ", 0, NULL_PTR);
3489 /* Dump out the options accumulated previously using -Wa,. */
3491 for (i = 0; i < n_assembler_options; i++)
3493 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3494 /* Make each accumulated option a separate argument. */
3495 do_spec_1 (" ", 0, NULL_PTR);
3499 /* Dump out the options accumulated previously using -Wp,. */
3501 for (i = 0; i < n_preprocessor_options; i++)
3503 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3504 /* Make each accumulated option a separate argument. */
3505 do_spec_1 (" ", 0, NULL_PTR);
3509 /* Here are digits and numbers that just process
3510 a certain constant string as a spec. */
3513 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3519 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3525 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3531 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3537 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3543 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3549 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3555 value = do_spec_1 (link_spec, 0, NULL_PTR);
3561 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3567 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3574 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3578 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3582 if (! strncmp (y, "-D", 2))
3583 /* Copy the whole option. */
3584 while (*y && *y != ' ' && *y != '\t')
3586 else if (*y == ' ' || *y == '\t')
3587 /* Copy whitespace to the result. */
3589 /* Don't copy other options. */
3596 value = do_spec_1 (buf, 0, NULL_PTR);
3604 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3608 /* Copy all of CPP_PREDEFINES into BUF,
3609 but put __ after every -D and at the end of each arg. */
3613 if (! strncmp (y, "-D", 2))
3621 || (*(y+1) != '_' && ! isupper (*(y+1))))
3623 /* Stick __ at front of macro name. */
3626 /* Arrange to stick __ at the end as well. */
3630 /* Copy the macro name. */
3631 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3640 /* Copy the value given, if any. */
3641 while (*y && *y != ' ' && *y != '\t')
3644 else if (*y == ' ' || *y == '\t')
3645 /* Copy whitespace to the result. */
3647 /* Don't copy -A options */
3653 /* Copy all of CPP_PREDEFINES into BUF,
3654 but put __ after every -D. */
3658 if (! strncmp (y, "-D", 2))
3663 || (*(y+1) != '_' && ! isupper (*(y+1))))
3665 /* Stick -D__ at front of macro name. */
3671 /* Copy the macro name. */
3672 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3675 /* Copy the value given, if any. */
3676 while (*y && *y != ' ' && *y != '\t')
3681 /* Do not copy this macro - we have just done it before */
3682 while (*y && *y != ' ' && *y != '\t')
3686 else if (*y == ' ' || *y == '\t')
3687 /* Copy whitespace to the result. */
3689 /* Don't copy -A options */
3695 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3699 if (! strncmp (y, "-A", 2))
3700 /* Copy the whole option. */
3701 while (*y && *y != ' ' && *y != '\t')
3703 else if (*y == ' ' || *y == '\t')
3704 /* Copy whitespace to the result. */
3706 /* Don't copy other options. */
3713 value = do_spec_1 (buf, 0, NULL_PTR);
3720 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3725 /* Here we define characters other than letters and digits. */
3728 p = handle_braces (p);
3734 obstack_1grow (&obstack, '%');
3738 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3739 do_spec_1 (" ", 0, NULL_PTR);
3742 /* Process a string found as the value of a spec given by name.
3743 This feature allows individual machine descriptions
3744 to add and use their own specs.
3745 %[...] modifies -D options the way %P does;
3746 %(...) uses the spec unmodified. */
3751 struct spec_list *sl;
3754 /* The string after the S/P is the name of a spec that is to be
3756 while (*p && *p != ')' && *p != ']')
3759 /* See if it's in the list */
3760 for (len = p - name, sl = specs; sl; sl = sl->next)
3761 if (sl->name_len == len && !strncmp (sl->name, name, len))
3763 name = *(sl->ptr_spec);
3765 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
3766 c, sl->name, (c == '(') ? ')' : ']', name);
3775 value = do_spec_1 (name, 0, NULL_PTR);
3781 char *x = (char *) alloca (strlen (name) * 2 + 1);
3785 /* Copy all of NAME into BUF, but put __ after
3786 every -D and at the end of each arg, */
3791 if (! strncmp (y, "-D", 2))
3801 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3802 || *y == '}' || *y == 0))
3815 value = do_spec_1 (buf, 0, NULL_PTR);
3821 /* Discard the closing paren or bracket. */
3829 int c1 = *p++; /* Select first or second version number. */
3830 char *v = compiler_version;
3833 /* The format of the version string is
3834 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3836 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3837 while (! isdigit (*v))
3839 if (v > compiler_version && v[-1] != '-')
3842 /* If desired, advance to second version number. */
3845 /* Set V after the first period. */
3846 while (isdigit (*v))
3853 /* Set Q at the next period or at the end. */
3855 while (isdigit (*q))
3857 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3860 /* Put that part into the command. */
3861 obstack_grow (&obstack, v, q - v);
3867 if (input_from_pipe)
3868 do_spec_1 ("-", 0, NULL_PTR);
3877 /* Backslash: treat next character as ordinary. */
3882 /* Ordinary character: put it into the current argument. */
3883 obstack_1grow (&obstack, c);
3887 return 0; /* End of string */
3890 /* Return 0 if we call do_spec_1 and that returns -1. */
3901 int include_blanks = 1;
3904 /* A '^' after the open-brace means to not give blanks before args. */
3905 include_blanks = 0, ++p;
3908 /* A `|' after the open-brace means,
3909 if the test fails, output a single minus sign rather than nothing.
3910 This is used in %{|!pipe:...}. */
3914 /* A `!' after the open-brace negates the condition:
3915 succeed if the specified switch is not present. */
3919 /* A `.' after the open-brace means test against the current suffix. */
3929 while (*p != ':' && *p != '}') p++;
3932 register int count = 1;
3950 int found = (input_suffix != 0
3951 && strlen (input_suffix) == p - filter
3952 && strncmp (input_suffix, filter, p - filter) == 0);
3958 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3963 else if (p[-1] == '*' && p[0] == '}')
3965 /* Substitute all matching switches as separate args. */
3968 for (i = 0; i < n_switches; i++)
3969 if (!strncmp (switches[i].part1, filter, p - filter)
3970 && check_live_switch (i, p - filter))
3971 give_switch (i, 0, include_blanks);
3975 /* Test for presence of the specified switch. */
3979 /* If name specified ends in *, as in {x*:...},
3980 check for %* and handle that case. */
3981 if (p[-1] == '*' && !negate)
3986 /* First see whether we have %*. */
3990 if (*r == '%' && r[1] == '*')
3994 /* If we do, handle that case. */
3997 /* Substitute all matching switches as separate args.
3998 But do this by substituting for %*
3999 in the text that follows the colon. */
4001 unsigned hard_match_len = p - filter - 1;
4002 char *string = save_string (p + 1, q - p - 2);
4004 for (i = 0; i < n_switches; i++)
4005 if (!strncmp (switches[i].part1, filter, hard_match_len)
4006 && check_live_switch (i, -1))
4008 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4009 /* Pass any arguments this switch has. */
4010 give_switch (i, 1, 1);
4017 /* If name specified ends in *, as in {x*:...},
4018 check for presence of any switch name starting with x. */
4021 for (i = 0; i < n_switches; i++)
4023 unsigned hard_match_len = p - filter - 1;
4025 if (!strncmp (switches[i].part1, filter, hard_match_len)
4026 && check_live_switch (i, hard_match_len))
4032 /* Otherwise, check for presence of exact name specified. */
4035 for (i = 0; i < n_switches; i++)
4037 if (!strncmp (switches[i].part1, filter, p - filter)
4038 && switches[i].part1[p - filter] == 0
4039 && check_live_switch (i, -1))
4047 /* If it is as desired (present for %{s...}, absent for %{-s...})
4048 then substitute either the switch or the specified
4049 conditional text. */
4050 if (present != negate)
4054 give_switch (i, 0, include_blanks);
4058 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
4064 /* Here if a %{|...} conditional fails: output a minus sign,
4065 which means "standard output" or "standard input". */
4066 do_spec_1 ("-", 0, NULL_PTR);
4073 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4074 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4075 spec, or -1 if either exact match or %* is used.
4077 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4078 whose value does not begin with "no-" is obsoleted by the same value
4079 with the "no-", similarly for a switch with the "no-" prefix. */
4082 check_live_switch (switchnum, prefix_length)
4086 char *name = switches[switchnum].part1;
4089 /* In the common case of {<at-most-one-letter>*}, a negating
4090 switch would always match, so ignore that case. We will just
4091 send the conflicting switches to the compiler phase. */
4092 if (prefix_length >= 0 && prefix_length <= 1)
4095 /* If we already processed this switch and determined if it was
4096 live or not, return our past determination. */
4097 if (switches[switchnum].live_cond != 0)
4098 return switches[switchnum].live_cond > 0;
4100 /* Now search for duplicate in a manner that depends on the name. */
4104 for (i = switchnum + 1; i < n_switches; i++)
4105 if (switches[i].part1[0] == 'O')
4107 switches[switchnum].valid = 1;
4108 switches[switchnum].live_cond = -1;
4113 case 'W': case 'f': case 'm':
4114 if (! strncmp (name + 1, "no-", 3))
4116 /* We have Xno-YYY, search for XYYY. */
4117 for (i = switchnum + 1; i < n_switches; i++)
4118 if (switches[i].part1[0] == name[0]
4119 && ! strcmp (&switches[i].part1[1], &name[4]))
4121 switches[switchnum].valid = 1;
4122 switches[switchnum].live_cond = -1;
4128 /* We have XYYY, search for Xno-YYY. */
4129 for (i = switchnum + 1; i < n_switches; i++)
4130 if (switches[i].part1[0] == name[0]
4131 && switches[i].part1[1] == 'n'
4132 && switches[i].part1[2] == 'o'
4133 && switches[i].part1[3] == '-'
4134 && !strcmp (&switches[i].part1[4], &name[1]))
4136 switches[switchnum].valid = 1;
4137 switches[switchnum].live_cond = -1;
4144 /* Otherwise the switch is live. */
4145 switches[switchnum].live_cond = 1;
4149 /* Pass a switch to the current accumulating command
4150 in the same form that we received it.
4151 SWITCHNUM identifies the switch; it is an index into
4152 the vector of switches gcc received, which is `switches'.
4153 This cannot fail since it never finishes a command line.
4155 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4157 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4161 give_switch (switchnum, omit_first_word, include_blanks)
4163 int omit_first_word;
4166 if (!omit_first_word)
4168 do_spec_1 ("-", 0, NULL_PTR);
4169 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4172 if (switches[switchnum].args != 0)
4175 for (p = switches[switchnum].args; *p; p++)
4178 do_spec_1 (" ", 0, NULL_PTR);
4179 do_spec_1 (*p, 1, NULL_PTR);
4183 do_spec_1 (" ", 0, NULL_PTR);
4184 switches[switchnum].valid = 1;
4187 /* Search for a file named NAME trying various prefixes including the
4188 user's -B prefix and some standard ones.
4189 Return the absolute file name found. If nothing is found, return NAME. */
4197 /* Try multilib_dir if it is defined. */
4198 if (multilib_dir != NULL)
4202 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4203 strcpy (try, multilib_dir);
4204 strcat (try, dir_separator_str);
4207 newname = find_a_file (&startfile_prefixes, try, R_OK);
4209 /* If we don't find it in the multi library dir, then fall
4210 through and look for it in the normal places. */
4211 if (newname != NULL)
4215 newname = find_a_file (&startfile_prefixes, name, R_OK);
4216 return newname ? newname : name;
4219 /* Determine whether a directory exists. If LINKER, return 0 for
4220 certain fixed names not needed by the linker. If not LINKER, it is
4221 only important to return 0 if the host machine has a small ARG_MAX
4225 is_directory (path1, path2, linker)
4230 int len1 = strlen (path1);
4231 int len2 = strlen (path2);
4232 char *path = (char *) alloca (3 + len1 + len2);
4236 #ifndef SMALL_ARG_MAX
4241 /* Construct the path from the two parts. Ensure the string ends with "/.".
4242 The resulting path will be a directory even if the given path is a
4244 bcopy (path1, path, len1);
4245 bcopy (path2, path + len1, len2);
4246 cp = path + len1 + len2;
4247 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4248 *cp++ = DIR_SEPARATOR;
4252 /* Exclude directories that the linker is known to search. */
4255 && strcmp (path, concat (dir_separator_str, "lib",
4256 dir_separator_str, ".", NULL_PTR)) == 0)
4258 && strcmp (path, concat (dir_separator_str, "usr",
4259 dir_separator_str, "lib",
4260 dir_separator_str, ".", NULL_PTR)) == 0)))
4263 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4266 /* On fatal signals, delete all the temporary files. */
4269 fatal_error (signum)
4272 signal (signum, SIG_DFL);
4273 delete_failure_queue ();
4274 delete_temp_files ();
4275 /* Get the same signal again, this time not handled,
4276 so its normal effect occurs. */
4277 kill (getpid (), signum);
4288 int linker_was_run = 0;
4289 char *explicit_link_files;
4292 struct user_specs *uptr;
4294 p = argv[0] + strlen (argv[0]);
4295 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4298 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4299 signal (SIGINT, fatal_error);
4301 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4302 signal (SIGHUP, fatal_error);
4304 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4305 signal (SIGTERM, fatal_error);
4307 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4308 signal (SIGPIPE, fatal_error);
4311 { /* Warn users they are using developmental software. */
4312 static void snapshot_warning ();
4313 snapshot_warning ();
4317 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4319 obstack_init (&obstack);
4321 /* Build multilib_select, et. al from the separate lines that make up each
4322 multilib selection. */
4324 char **q = multilib_raw;
4327 obstack_init (&multilib_obstack);
4328 while ((p = *q++) != (char *) 0)
4329 obstack_grow (&multilib_obstack, p, strlen (p));
4331 obstack_1grow (&multilib_obstack, 0);
4332 multilib_select = obstack_finish (&multilib_obstack);
4334 q = multilib_matches_raw;
4335 while ((p = *q++) != (char *) 0)
4336 obstack_grow (&multilib_obstack, p, strlen (p));
4338 obstack_1grow (&multilib_obstack, 0);
4339 multilib_matches = obstack_finish (&multilib_obstack);
4343 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4347 obstack_1grow (&multilib_obstack, ' ');
4348 obstack_grow (&multilib_obstack,
4349 multilib_defaults_raw[i],
4350 strlen (multilib_defaults_raw[i]));
4354 obstack_1grow (&multilib_obstack, 0);
4355 multilib_defaults = obstack_finish (&multilib_obstack);
4358 /* Set up to remember the pathname of gcc and any options
4359 needed for collect. We use argv[0] instead of programname because
4360 we need the complete pathname. */
4361 obstack_init (&collect_obstack);
4362 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4363 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4364 putenv (obstack_finish (&collect_obstack));
4366 #ifdef INIT_ENVIRONMENT
4367 /* Set up any other necessary machine specific environment variables. */
4368 putenv (INIT_ENVIRONMENT);
4371 /* Choose directory for temp files. */
4373 temp_filename = choose_temp_base ();
4374 temp_filename_length = strlen (temp_filename);
4376 /* Make a table of what switches there are (switches, n_switches).
4377 Make a table of specified input files (infiles, n_infiles).
4378 Decode switches that are handled locally. */
4380 process_command (argc, argv);
4386 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4388 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4389 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4392 for (i = 0; i < n_switches; i++)
4397 obstack_grow (&collect_obstack, " ", 1);
4400 obstack_grow (&collect_obstack, "'-", 2);
4401 q = switches[i].part1;
4402 while (p = (char *) index (q,'\''))
4404 obstack_grow (&collect_obstack, q, p-q);
4405 obstack_grow (&collect_obstack, "'\\''", 4);
4408 obstack_grow (&collect_obstack, q, strlen (q));
4409 obstack_grow (&collect_obstack, "'", 1);
4411 for (args = switches[i].args; args && *args; args++)
4413 obstack_grow (&collect_obstack, " '", 2);
4415 while (p = (char *) index (q,'\''))
4417 obstack_grow (&collect_obstack, q, p-q);
4418 obstack_grow (&collect_obstack, "'\\''", 4);
4421 obstack_grow (&collect_obstack, q, strlen (q));
4422 obstack_grow (&collect_obstack, "'", 1);
4425 obstack_grow (&collect_obstack, "\0", 1);
4426 putenv (obstack_finish (&collect_obstack));
4429 /* Initialize the vector of specs to just the default.
4430 This means one element containing 0s, as a terminator. */
4432 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4433 bcopy ((char *) default_compilers, (char *) compilers,
4434 sizeof default_compilers);
4435 n_compilers = n_default_compilers;
4437 /* Read specs from a file if there is one. */
4439 machine_suffix = concat (spec_machine, dir_separator_str,
4440 spec_version, dir_separator_str, NULL_PTR);
4441 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4443 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4444 /* Read the specs file unless it is a default one. */
4445 if (specs_file != 0 && strcmp (specs_file, "specs"))
4446 read_specs (specs_file, TRUE);
4450 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4451 for any override of as, ld and libraries. */
4452 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4453 + strlen (just_machine_suffix)
4454 + sizeof ("specs"));
4456 strcpy (specs_file, standard_exec_prefix);
4457 strcat (specs_file, just_machine_suffix);
4458 strcat (specs_file, "specs");
4459 if (access (specs_file, R_OK) == 0)
4460 read_specs (specs_file, TRUE);
4462 /* Process any user specified specs in the order given on the command
4464 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4466 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4467 read_specs (filename ? filename : uptr->filename, FALSE);
4470 /* If not cross-compiling, look for startfiles in the standard places. */
4471 /* The fact that these are done here, after reading the specs file,
4472 means that it cannot be found in these directories.
4473 But that's okay. It should never be there anyway. */
4474 if (*cross_compile == '0')
4476 #ifdef MD_EXEC_PREFIX
4477 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4478 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4481 #ifdef MD_STARTFILE_PREFIX
4482 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4485 #ifdef MD_STARTFILE_PREFIX_1
4486 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4489 /* If standard_startfile_prefix is relative, base it on
4490 standard_exec_prefix. This lets us move the installed tree
4491 as a unit. If GCC_EXEC_PREFIX is defined, base
4492 standard_startfile_prefix on that as well. */
4493 if (*standard_startfile_prefix == '/'
4494 || *standard_startfile_prefix == DIR_SEPARATOR)
4495 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4499 if (gcc_exec_prefix)
4500 add_prefix (&startfile_prefixes,
4501 concat (gcc_exec_prefix, machine_suffix,
4502 standard_startfile_prefix, NULL_PTR),
4504 add_prefix (&startfile_prefixes,
4505 concat (standard_exec_prefix,
4507 standard_startfile_prefix, NULL_PTR),
4511 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4513 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4515 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4516 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4521 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4522 add_prefix (&startfile_prefixes,
4523 concat (gcc_exec_prefix, machine_suffix,
4524 standard_startfile_prefix, NULL_PTR),
4528 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4529 if (gcc_exec_prefix)
4531 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4532 + strlen (spec_version)
4533 + strlen (spec_machine) + 3);
4534 strcpy (temp, gcc_exec_prefix);
4535 strcat (temp, spec_machine);
4536 strcat (temp, dir_separator_str);
4537 strcat (temp, spec_version);
4538 strcat (temp, dir_separator_str);
4539 gcc_exec_prefix = temp;
4542 /* Now we have the specs.
4543 Set the `valid' bits for switches that match anything in any spec. */
4545 validate_all_switches ();
4547 /* Now that we have the switches and the specs, set
4548 the subdirectory based on the options. */
4549 set_multilib_dir ();
4551 /* Warn about any switches that no pass was interested in. */
4553 for (i = 0; i < n_switches; i++)
4554 if (! switches[i].valid)
4555 error ("unrecognized option `-%s'", switches[i].part1);
4557 /* Obey some of the options. */
4559 if (print_search_dirs)
4561 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4562 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4563 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4567 if (print_file_name)
4569 printf ("%s\n", find_file (print_file_name));
4573 if (print_prog_name)
4575 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4576 printf ("%s\n", (newname ? newname : print_prog_name));
4580 if (print_multi_lib)
4582 print_multilib_info ();
4586 if (print_multi_directory)
4588 if (multilib_dir == NULL)
4591 printf ("%s\n", multilib_dir);
4599 /* compiler_version is truncated at the first space when initialized
4600 from version string, so truncate version_string at the first space
4601 before comparing. */
4602 for (n = 0; version_string[n]; n++)
4603 if (version_string[n] == ' ')
4606 if (! strncmp (version_string, compiler_version, n)
4607 && compiler_version[n] == 0)
4608 fprintf (stderr, "gcc version %s\n", version_string);
4610 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4611 version_string, compiler_version);
4618 fatal ("No input files");
4620 /* Make a place to record the compiler output file names
4621 that correspond to the input files. */
4623 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4624 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4626 /* Record which files were specified explicitly as link input. */
4628 explicit_link_files = xmalloc (n_infiles);
4629 bzero (explicit_link_files, n_infiles);
4631 for (i = 0; i < n_infiles; i++)
4633 register struct compiler *cp = 0;
4634 int this_file_error = 0;
4636 /* Tell do_spec what to substitute for %i. */
4638 input_filename = infiles[i].name;
4639 input_filename_length = strlen (input_filename);
4640 input_file_number = i;
4642 /* Use the same thing in %o, unless cp->spec says otherwise. */
4644 outfiles[i] = input_filename;
4646 /* Figure out which compiler from the file's suffix. */
4648 cp = lookup_compiler (infiles[i].name, input_filename_length,
4649 infiles[i].language);
4653 /* Ok, we found an applicable compiler. Run its spec. */
4654 /* First say how much of input_filename to substitute for %b */
4658 if (cp->spec[0][0] == '#')
4659 error ("%s: %s compiler not installed on this system",
4660 input_filename, &cp->spec[0][1]);
4662 input_basename = input_filename;
4663 for (p = input_filename; *p; p++)
4664 if (*p == '/' || *p == DIR_SEPARATOR)
4665 input_basename = p + 1;
4667 /* Find a suffix starting with the last period,
4668 and set basename_length to exclude that suffix. */
4669 basename_length = strlen (input_basename);
4670 p = input_basename + basename_length;
4671 while (p != input_basename && *p != '.') --p;
4672 if (*p == '.' && p != input_basename)
4674 basename_length = p - input_basename;
4675 input_suffix = p + 1;
4681 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4683 len += strlen (cp->spec[j]);
4685 p = (char *) xmalloc (len + 1);
4688 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4691 strcpy (p + len, cp->spec[j]);
4692 len += strlen (cp->spec[j]);
4695 value = do_spec (p);
4698 this_file_error = 1;
4701 /* If this file's name does not contain a recognized suffix,
4702 record it as explicit linker input. */
4705 explicit_link_files[i] = 1;
4707 /* Clear the delete-on-failure queue, deleting the files in it
4708 if this compilation failed. */
4710 if (this_file_error)
4712 delete_failure_queue ();
4715 /* If this compilation succeeded, don't delete those files later. */
4716 clear_failure_queue ();
4719 /* Run ld to link all the compiler output files. */
4721 if (error_count == 0)
4723 int tmp = execution_count;
4727 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4729 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4730 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4732 value = do_spec (link_command_spec);
4735 linker_was_run = (tmp != execution_count);
4738 /* Warn if a -B option was specified but the prefix was never used. */
4739 unused_prefix_warnings (&exec_prefixes);
4740 unused_prefix_warnings (&startfile_prefixes);
4742 /* If options said don't run linker,
4743 complain about input files to be given to the linker. */
4745 if (! linker_was_run && error_count == 0)
4746 for (i = 0; i < n_infiles; i++)
4747 if (explicit_link_files[i])
4748 error ("%s: linker input file unused since linking not done",
4751 /* Delete some or all of the temporary files we made. */
4754 delete_failure_queue ();
4755 delete_temp_files ();
4757 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4762 /* Find the proper compilation spec for the file name NAME,
4763 whose length is LENGTH. LANGUAGE is the specified language,
4764 or 0 if none specified. */
4766 static struct compiler *
4767 lookup_compiler (name, length, language)
4772 struct compiler *cp;
4774 /* Look for the language, if one is spec'd. */
4777 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4781 if (cp->suffix[0] == '@'
4782 && !strcmp (cp->suffix + 1, language))
4786 error ("language %s not recognized", language);
4789 /* Look for a suffix. */
4790 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4792 if (/* The suffix `-' matches only the file name `-'. */
4793 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4795 (strlen (cp->suffix) < length
4796 /* See if the suffix matches the end of NAME. */
4798 && (!strcmp (cp->suffix,
4799 name + length - strlen (cp->suffix))
4800 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4801 && !strcasecmp (cp->suffix,
4802 name + length - strlen (cp->suffix)))))
4804 && !strcmp (cp->suffix,
4805 name + length - strlen (cp->suffix))))
4808 if (cp->spec[0][0] == '@')
4810 struct compiler *new;
4811 /* An alias entry maps a suffix to a language.
4812 Search for the language; pass 0 for NAME and LENGTH
4813 to avoid infinite recursion if language not found.
4814 Construct the new compiler spec. */
4815 language = cp->spec[0] + 1;
4816 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4817 new->suffix = cp->suffix;
4818 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4819 (char *) new->spec, sizeof new->spec);
4822 /* A non-alias entry: return it. */
4834 register char *value = (char *) malloc (size);
4836 fatal ("virtual memory exhausted");
4841 xrealloc (ptr, size)
4845 register char *value = (char *) realloc (ptr, size);
4847 fatal ("virtual memory exhausted");
4851 /* This function is based on the one in libiberty. */
4854 concat VPROTO((char *first, ...))
4856 register int length;
4857 register char *newstr;
4865 /* First compute the size of the result and get sufficient memory. */
4867 VA_START (args, first);
4869 first = va_arg (args, char *);
4877 length += strlen (arg);
4878 arg = va_arg (args, char *);
4881 newstr = (char *) xmalloc (length + 1);
4884 /* Now copy the individual pieces to the result string. */
4886 VA_START (args, first);
4888 first = va_arg (args, char *);
4897 arg = va_arg (args, char *);
4906 save_string (s, len)
4910 register char *result = xmalloc (len + 1);
4912 bcopy (s, result, len);
4918 pfatal_with_name (name)
4921 fatal ("%s: %s", name, my_strerror (errno));
4925 perror_with_name (name)
4928 error ("%s: %s", name, my_strerror (errno));
4932 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4938 /* Space for trailing '\0' is in %s. */
4939 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4940 sprintf (msg, errmsg_fmt, errmsg_arg);
4944 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4947 /* More 'friendly' abort that prints the line and file.
4948 config.h can #define abort fancy_abort if you like that sort of thing. */
4953 fatal ("Internal gcc abort.");
4958 /* Output an error message and exit */
4961 fatal VPROTO((char *format, ...))
4968 VA_START (ap, format);
4971 format = va_arg (ap, char *);
4974 fprintf (stderr, "%s: ", programname);
4975 vfprintf (stderr, format, ap);
4977 fprintf (stderr, "\n");
4978 delete_temp_files ();
4983 error VPROTO((char *format, ...))
4990 VA_START (ap, format);
4993 format = va_arg (ap, char *);
4996 fprintf (stderr, "%s: ", programname);
4997 vfprintf (stderr, format, ap);
5000 fprintf (stderr, "\n");
5003 #else /* not HAVE_VPRINTF */
5006 fatal (msg, arg1, arg2)
5007 char *msg, *arg1, *arg2;
5009 error (msg, arg1, arg2);
5010 delete_temp_files ();
5015 error (msg, arg1, arg2)
5016 char *msg, *arg1, *arg2;
5018 fprintf (stderr, "%s: ", programname);
5019 fprintf (stderr, msg, arg1, arg2);
5020 fprintf (stderr, "\n");
5023 #endif /* not HAVE_VPRINTF */
5027 validate_all_switches ()
5029 struct compiler *comp;
5032 struct spec_list *spec;
5034 for (comp = compilers; comp->spec[0]; comp++)
5037 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5041 if (c == '%' && *p == '{')
5042 /* We have a switch spec. */
5043 validate_switches (p + 1);
5047 /* look through the linked list of specs read from the specs file */
5048 for (spec = specs; spec ; spec = spec->next)
5050 p = *(spec->ptr_spec);
5052 if (c == '%' && *p == '{')
5053 /* We have a switch spec. */
5054 validate_switches (p + 1);
5057 p = link_command_spec;
5059 if (c == '%' && *p == '{')
5060 /* We have a switch spec. */
5061 validate_switches (p + 1);
5064 /* Look at the switch-name that comes after START
5065 and mark as valid all supplied switches that match it. */
5068 validate_switches (start)
5071 register char *p = start;
5086 while (*p != ':' && *p != '}') p++;
5090 else if (p[-1] == '*')
5092 /* Mark all matching switches as valid. */
5094 for (i = 0; i < n_switches; i++)
5095 if (!strncmp (switches[i].part1, filter, p - filter))
5096 switches[i].valid = 1;
5100 /* Mark an exact matching switch as valid. */
5101 for (i = 0; i < n_switches; i++)
5103 if (!strncmp (switches[i].part1, filter, p - filter)
5104 && switches[i].part1[p - filter] == 0)
5105 switches[i].valid = 1;
5110 /* Check whether a particular argument was used. The first time we
5111 canonialize the switches to keep only the ones we care about. */
5125 static struct mswitchstr *mswitches;
5126 static int n_mswitches;
5131 struct mswitchstr *matches;
5135 /* Break multilib_matches into the component strings of string and replacement
5137 for (q = multilib_matches; *q != '\0'; q++)
5141 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5143 q = multilib_matches;
5154 matches[i].len = q - matches[i].str;
5156 matches[i].replace = ++q;
5157 while (*q != ';' && *q != '\0')
5163 matches[i].rep_len = q - matches[i].replace;
5171 /* Now build a list of the replacement string for switches that we care
5172 about. Make sure we allocate at least one entry. This prevents
5173 xmalloc from calling fatal, and prevents us from re-executing this
5176 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5177 * (n_switches ? n_switches : 1));
5178 for (i = 0; i < n_switches; i++)
5180 int xlen = strlen (switches[i].part1);
5181 for (j = 0; j < cnt; j++)
5182 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5184 mswitches[n_mswitches].str = matches[j].replace;
5185 mswitches[n_mswitches].len = matches[j].rep_len;
5186 mswitches[n_mswitches].replace = (char *)0;
5187 mswitches[n_mswitches].rep_len = 0;
5194 for (i = 0; i < n_mswitches; i++)
5195 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5202 default_arg (p, len)
5209 for (start = multilib_defaults; *start != '\0'; start = end+1)
5211 while (*start == ' ' || *start == '\t')
5217 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5220 if ((end - start) == len && strncmp (p, start, len) == 0)
5227 /* Work out the subdirectory to use based on the
5228 options. The format of multilib_select is a list of elements.
5229 Each element is a subdirectory name followed by a list of options
5230 followed by a semicolon. gcc will consider each line in turn. If
5231 none of the options beginning with an exclamation point are
5232 present, and all of the other options are present, that
5233 subdirectory will be used. */
5238 char *p = multilib_select;
5240 char *this_path, *this_arg;
5246 /* Ignore newlines. */
5253 /* Get the initial path. */
5261 this_path_len = p - this_path;
5263 /* Check the arguments. */
5278 while (*p != ' ' && *p != ';')
5285 if (*this_arg != '!')
5293 /* If this is a default argument, we can just ignore it.
5294 This is true even if this_arg begins with '!'. Beginning
5295 with '!' does not mean that this argument is necessarily
5296 inappropriate for this library: it merely means that
5297 there is a more specific library which uses this
5298 argument. If this argument is a default, we need not
5299 consider that more specific library. */
5300 if (! default_arg (this_arg, p - this_arg))
5302 ok = used_arg (this_arg, p - this_arg);
5313 if (this_path_len != 1
5314 || this_path[0] != '.')
5316 multilib_dir = xmalloc (this_path_len + 1);
5317 strncpy (multilib_dir, this_path, this_path_len);
5318 multilib_dir[this_path_len] = '\0';
5327 /* Print out the multiple library subdirectory selection
5328 information. This prints out a series of lines. Each line looks
5329 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5330 required. Only the desired options are printed out, the negative
5331 matches. The options are print without a leading dash. There are
5332 no spaces to make it easy to use the information in the shell.
5333 Each subdirectory is printed only once. This assumes the ordering
5334 generated by the genmultilib script. */
5337 print_multilib_info ()
5339 char *p = multilib_select;
5340 char *last_path = 0, *this_path;
5342 int last_path_len = 0;
5346 /* Ignore newlines. */
5353 /* Get the initial path. */
5362 /* If this is a duplicate, skip it. */
5363 skip = (last_path != 0 && p - this_path == last_path_len
5364 && ! strncmp (last_path, this_path, last_path_len));
5366 last_path = this_path;
5367 last_path_len = p - this_path;
5369 /* If this directory requires any default arguments, we can skip
5370 it. We will already have printed a directory identical to
5371 this one which does not require that default argument. */
5389 while (*q != ' ' && *q != ';')
5397 && default_arg (arg, q - arg))
5412 for (p1 = last_path; p1 < p; p1++)
5431 use_arg = *p != '!';
5436 while (*p != ' ' && *p != ';')
5451 /* If there are extra options, print them now */
5452 if (multilib_extra && *multilib_extra)
5454 int print_at = TRUE;
5457 for (q = multilib_extra; *q != '\0'; q++)
5477 /* For snapshots only.
5478 Warn the user that this version of gcc is for testing and developing only.
5479 If this is unix, we can restrict the warning to once per day.
5480 Otherwise always issue it. */
5482 #define TIMESTAMP_FILE ".gcc-test-time"
5483 #define ONE_DAY (24*60*60)
5492 home = getenv ("HOME");
5495 char *file_name = (char *) alloca (strlen (home) + 1 + sizeof (TIMESTAMP_FILE));
5496 struct stat statbuf;
5497 time_t now = time (NULL);
5500 sprintf (file_name, "%s/%s", home, TIMESTAMP_FILE);
5501 s = stat (file_name, &statbuf);
5503 && (statbuf.st_mtime + ONE_DAY > now))
5509 if ((f = fopen (file_name, "w")) == NULL)
5511 /* Ensure we have write access. */
5512 chmod (file_name, s == 0 ? (statbuf.st_mode + 0200) : 0644);
5513 f = fopen (file_name, "w");
5526 fprintf (stderr, "*** This is a development snapshot of GCC.\n");
5527 fprintf (stderr, "*** It is not reliable release, and the GCC developers\n");
5528 fprintf (stderr, "*** warn you not to use it for anything except to test it.\n");