1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
34 #include <sys/types.h>
41 #include <sys/file.h> /* May get R_OK, etc. on some systems. */
46 #include "gansidecl.h"
61 /* ??? Need to find a GCC header to put these in. */
62 extern int pexecute PROTO ((const char *, char * const *, const char *,
63 const char *, char **, char **, int));
64 extern int pwait PROTO ((int, int *, int));
65 /* Flag arguments to pexecute. */
66 #define PEXECUTE_FIRST 1
67 #define PEXECUTE_LAST 2
68 #define PEXECUTE_SEARCH 4
69 #define PEXECUTE_VERBOSE 8
72 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
75 #define WTERMSIG(S) ((S) & 0x7f)
78 #define WIFEXITED(S) (((S) & 0xff) == 0)
81 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
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 int cross_compile = 1;
211 static int 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 set_spec PROTO((char *, char *));
235 static struct compiler *lookup_compiler PROTO((char *, int, char *));
236 static char *build_search_list PROTO((struct path_prefix *, char *, int));
237 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
238 static char *find_a_file PROTO((struct path_prefix *, char *, int));
239 static void add_prefix PROTO((struct path_prefix *, char *, int, int, int *));
240 static char *skip_whitespace PROTO((char *));
241 static void record_temp_file PROTO((char *, int, int));
242 static void delete_if_ordinary PROTO((char *));
243 static void delete_temp_files PROTO((void));
244 static void delete_failure_queue PROTO((void));
245 static void clear_failure_queue PROTO((void));
246 static int check_live_switch PROTO((int, int));
247 static char *handle_braces PROTO((char *));
248 static char *save_string PROTO((char *, int));
249 static char *concat PVPROTO((char *, ...));
250 static int do_spec PROTO((char *));
251 static int do_spec_1 PROTO((char *, int, char *));
252 static char *find_file PROTO((char *));
253 static int is_directory PROTO((char *, char *, int));
254 static void validate_switches PROTO((char *));
255 static void validate_all_switches PROTO((void));
256 static void give_switch PROTO((int, int, int));
257 static int used_arg PROTO((char *, int));
258 static int default_arg PROTO((char *, int));
259 static void set_multilib_dir PROTO((void));
260 static void print_multilib_info PROTO((void));
261 static void pfatal_with_name PROTO((char *));
262 static void perror_with_name PROTO((char *));
263 static void pfatal_pexecute PROTO((char *, char *));
265 static void fatal PVPROTO((char *, ...));
266 static void error PVPROTO((char *, ...));
268 /* We must not provide any prototype here, even if ANSI C. */
269 static void fatal PROTO(());
270 static void error PROTO(());
277 /* Specs are strings containing lines, each of which (if not blank)
278 is made up of a program name, and arguments separated by spaces.
279 The program name must be exact and start from root, since no path
280 is searched and it is unreliable to depend on the current working directory.
281 Redirection of input or output is not supported; the subprograms must
282 accept filenames saying what files to read and write.
284 In addition, the specs can contain %-sequences to substitute variable text
285 or for conditional text. Here is a table of all defined %-sequences.
286 Note that spaces are not generated automatically around the results of
287 expanding these sequences; therefore, you can concatenate them together
288 or with constant text in a single argument.
290 %% substitute one % into the program name or argument.
291 %i substitute the name of the input file being processed.
292 %b substitute the basename of the input file being processed.
293 This is the substring up to (and not including) the last period
294 and not including the directory.
295 %g substitute the temporary-file-name-base. This is a string chosen
296 once per compilation. Different temporary file names are made by
297 concatenation of constant strings on the end, as in `%g.s'.
298 %g also has the same effect of %d.
299 %u like %g, but make the temporary file name unique.
300 %U returns the last file name generated with %u.
301 %d marks the argument containing or following the %d as a
302 temporary file name, so that that file will be deleted if CC exits
303 successfully. Unlike %g, this contributes no text to the argument.
304 %w marks the argument containing or following the %w as the
305 "output file" of this compilation. This puts the argument
306 into the sequence of arguments that %o will substitute later.
308 like %{...} but mark last argument supplied within
309 as a file to be deleted on failure.
310 %o substitutes the names of all the output files, with spaces
311 automatically placed around them. You should write spaces
312 around the %o as well or the results are undefined.
313 %o is for use in the specs for running the linker.
314 Input files whose names have no recognized suffix are not compiled
315 at all, but they are included among the output files, so they will
317 %O substitutes the suffix for object files.
318 %p substitutes the standard macro predefinitions for the
319 current target machine. Use this when running cpp.
320 %P like %p, but puts `__' before and after the name of each macro.
321 (Except macros that already have __.)
323 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
324 %s current argument is the name of a library or startup file of some sort.
325 Search for that file in a standard list of directories
326 and substitute the full name found.
327 %eSTR Print STR as an error message. STR is terminated by a newline.
328 Use this when inconsistent options are detected.
329 %x{OPTION} Accumulate an option for %X.
330 %X Output the accumulated linker options specified by compilations.
331 %Y Output the accumulated assembler options specified by compilations.
332 %Z Output the accumulated preprocessor options specified by compilations.
333 %v1 Substitute the major version number of GCC.
334 (For version 2.5.n, this is 2.)
335 %v2 Substitute the minor version number of GCC.
336 (For version 2.5.n, this is 5.)
337 %a process ASM_SPEC as a spec.
338 This allows config.h to specify part of the spec for running as.
339 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
340 used here. This can be used to run a post-processor after the
341 assembler has done it's job.
342 %D Dump out a -L option for each directory in startfile_prefixes.
343 If multilib_dir is set, extra entries are generated with it affixed.
344 %l process LINK_SPEC as a spec.
345 %L process LIB_SPEC as a spec.
346 %G process LIBGCC_SPEC as a spec.
347 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
348 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
349 %c process SIGNED_CHAR_SPEC as a spec.
350 %C process CPP_SPEC as a spec. A capital C is actually used here.
351 %1 process CC1_SPEC as a spec.
352 %2 process CC1PLUS_SPEC as a spec.
353 %| output "-" if the input for the current command is coming from a pipe.
354 %* substitute the variable part of a matched option. (See below.)
355 Note that each comma in the substituted string is replaced by
357 %{S} substitutes the -S switch, if that switch was given to CC.
358 If that switch was not specified, this substitutes nothing.
359 Here S is a metasyntactic variable.
360 %{S*} substitutes all the switches specified to CC whose names start
361 with -S. This is used for -o, -D, -I, etc; switches that take
362 arguments. CC considers `-o foo' as being one switch whose
363 name starts with `o'. %{o*} would substitute this text,
364 including the space; thus, two arguments would be generated.
365 %{^S*} likewise, but don't put a blank between a switch and any args.
366 %{S*:X} substitutes X if one or more switches whose names start with -S are
367 specified to CC. Note that the tail part of the -S option
368 (i.e. the part matched by the `*') will be substituted for each
369 occurrence of %* within X.
370 %{S:X} substitutes X, but only if the -S switch was given to CC.
371 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
372 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
373 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
374 %{.S:X} substitutes X, but only if processing a file with suffix S.
375 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
376 %(Spec) processes a specification defined in a specs file as *Spec:
377 %[Spec] as above, but put __ around -D arguments
379 The conditional text X in a %{S:X} or %{!S:X} construct may contain
380 other nested % constructs or spaces, or even newlines. They are
381 processed as usual, as described above.
383 The -O, -f, -m, and -W switches are handled specifically in these
384 constructs. If another value of -O or the negated form of a -f, -m, or
385 -W switch is found later in the command line, the earlier switch
386 value is ignored, except with {S*} where S is just one letter; this
387 passes all matching options.
389 The character | is used to indicate that a command should be piped to
390 the following command, but only if -pipe is specified.
392 Note that it is built into CC which switches take arguments and which
393 do not. You might think it would be useful to generalize this to
394 allow each compiler's spec to say which switches take arguments. But
395 this cannot be done in a consistent fashion. CC cannot even decide
396 which input files have been specified without knowing which switches
397 take arguments, and it must know which input files to compile in order
398 to tell which compilers to run.
400 CC also knows implicitly that arguments starting in `-l' are to be
401 treated as compiler output files, and passed to the linker in their
402 proper position among the other output files. */
404 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
406 /* config.h can define ASM_SPEC to provide extra args to the assembler
407 or extra switch-translations. */
412 /* config.h can define ASM_FINAL_SPEC to run a post processor after
413 the assembler has run. */
414 #ifndef ASM_FINAL_SPEC
415 #define ASM_FINAL_SPEC ""
418 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
419 or extra switch-translations. */
424 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
425 or extra switch-translations. */
430 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
431 or extra switch-translations. */
433 #define CC1PLUS_SPEC ""
436 /* config.h can define LINK_SPEC to provide extra args to the linker
437 or extra switch-translations. */
442 /* config.h can define LIB_SPEC to override the default libraries. */
444 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
447 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
450 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
451 /* Have gcc do the search for libgcc.a. */
452 #define LIBGCC_SPEC "libgcc.a%s"
454 #define LIBGCC_SPEC "-lgcc"
458 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
459 #ifndef STARTFILE_SPEC
460 #define STARTFILE_SPEC \
461 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
464 /* config.h can define SWITCHES_NEED_SPACES to control which options
465 require spaces between the option and the argument. */
466 #ifndef SWITCHES_NEED_SPACES
467 #define SWITCHES_NEED_SPACES ""
470 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
472 #define ENDFILE_SPEC ""
475 /* This spec is used for telling cpp whether char is signed or not. */
476 #ifndef SIGNED_CHAR_SPEC
477 /* Use #if rather than ?:
478 because MIPS C compiler rejects like ?: in initializers. */
479 #if DEFAULT_SIGNED_CHAR
480 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
482 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
486 static char *cpp_spec = CPP_SPEC;
487 static char *cpp_predefines = CPP_PREDEFINES;
488 static char *cc1_spec = CC1_SPEC;
489 static char *cc1plus_spec = CC1PLUS_SPEC;
490 static char *signed_char_spec = SIGNED_CHAR_SPEC;
491 static char *asm_spec = ASM_SPEC;
492 static char *asm_final_spec = ASM_FINAL_SPEC;
493 static char *link_spec = LINK_SPEC;
494 static char *lib_spec = LIB_SPEC;
495 static char *libgcc_spec = LIBGCC_SPEC;
496 static char *endfile_spec = ENDFILE_SPEC;
497 static char *startfile_spec = STARTFILE_SPEC;
498 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
500 /* Some compilers have limits on line lengths, and the multilib_select
501 and/or multilib_matches strings can be very long, so we build them at
503 static struct obstack multilib_obstack;
504 static char *multilib_select;
505 static char *multilib_matches;
506 static char *multilib_defaults;
507 #include "multilib.h"
509 /* Check whether a particular argument is a default argument. */
511 #ifndef MULTILIB_DEFAULTS
512 #define MULTILIB_DEFAULTS { "" }
515 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
518 static struct { char *name, *spec; } extra_specs[] = { EXTRA_SPECS };
522 struct user_specs *next;
526 static struct user_specs *user_specs_head, *user_specs_tail;
528 /* This defines which switch letters take arguments. */
530 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
531 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
532 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
533 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
534 || (CHAR) == 'L' || (CHAR) == 'A')
536 #ifndef SWITCH_TAKES_ARG
537 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
540 /* This defines which multi-letter switches take arguments. */
542 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
543 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
544 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
545 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
546 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
547 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
548 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
550 #ifndef WORD_SWITCH_TAKES_ARG
551 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
554 /* Record the mapping from file suffixes for compilation specs. */
558 char *suffix; /* Use this compiler for input files
559 whose names end in this suffix. */
561 char *spec[4]; /* To use this compiler, concatenate these
562 specs and pass to do_spec. */
565 /* Pointer to a vector of `struct compiler' that gives the spec for
566 compiling a file, based on its suffix.
567 A file that does not end in any of these suffixes will be passed
568 unchanged to the loader and nothing else will be done to it.
570 An entry containing two 0s is used to terminate the vector.
572 If multiple entries match a file, the last matching one is used. */
574 static struct compiler *compilers;
576 /* Number of entries in `compilers', not counting the null terminator. */
578 static int n_compilers;
580 /* The default list of file name suffixes and their compilation specs. */
582 static struct compiler default_compilers[] =
584 /* Add lists of suffixes of known languages here. If those languages
585 were no present when we built the driver, we will hit these copies
586 and given a more meaningful error than "file not used since
587 linking is not done". */
588 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"}, {".c++", "#C++"},
589 {".C", "#C++"}, {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
590 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
591 {".fpp", "#Fortran"},
592 /* Next come the entries for C. */
595 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
596 %{C:%{!E:%eGNU C does not support -C without using -E}}\
597 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
598 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
599 %{ansi:-trigraphs -D__STRICT_ANSI__}\
600 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
601 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
602 %{traditional-cpp:-traditional}\
603 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
604 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
605 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
606 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
607 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
608 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
610 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
611 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
613 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
614 %{!pipe:%g.s} %A\n }}}}"},
616 "%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
617 %{C:%{!E:%eGNU C does not support -C without using -E}}\
618 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
619 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
620 %{ansi:-trigraphs -D__STRICT_ANSI__}\
621 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
622 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
623 %{traditional-cpp:-traditional}\
624 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
626 %{!E:%e-E required when input is from standard input}"},
627 {".m", "@objective-c"},
629 "cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
630 %{C:%{!E:%eGNU C does not support -C without using -E}}\
631 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
632 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
633 %{ansi:-trigraphs -D__STRICT_ANSI__}\
634 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
635 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
636 %{traditional-cpp:-traditional}\
637 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
638 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
639 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
640 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
641 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
642 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
643 -lang-objc %{gen-decls} \
645 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
646 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
648 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
649 %{!pipe:%g.s} %A\n }}}}"},
652 "%{!E:%eCompilation of header file requested} \
653 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
654 %{C:%{!E:%eGNU C does not support -C without using -E}}\
655 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
656 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
657 %{ansi:-trigraphs -D__STRICT_ANSI__}\
658 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
659 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
660 %{traditional-cpp:-traditional}\
661 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
663 {".i", "@cpp-output"},
665 "%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
666 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
667 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
669 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
670 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
672 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
673 %{!pipe:%g.s} %A\n }}}}"},
674 {".s", "@assembler"},
676 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
677 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
679 {".S", "@assembler-with-cpp"},
680 {"@assembler-with-cpp",
681 "cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
682 %{C:%{!E:%eGNU C does not support -C without using -E}}\
683 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
684 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
685 %c %{O*:%{!O0:-D__OPTIMIZE__}} %{traditional} %{ftraditional:-traditional}\
686 %{traditional-cpp:-traditional}\
687 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
688 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
689 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
690 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
691 %{!pipe:%g.s} %A\n }}}}"},
693 /* Mark end of table */
697 /* Number of elements in default_compilers, not counting the terminator. */
699 static int n_default_compilers
700 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
702 /* Here is the spec for running the linker, after compiling all files. */
704 /* -u* was put back because both BSD and SysV seem to support it. */
705 /* %{static:} simply prevents an error message if the target machine
706 doesn't handle -static. */
707 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
708 scripts which exist in user specified directories, or in standard
710 #ifdef LINK_LIBGCC_SPECIAL
711 /* Don't generate -L options. */
712 static char *link_command_spec = "\
714 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
715 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
716 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
718 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
719 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
724 static char *link_command_spec = "\
726 %{!c:%{!M:%{!MM:%{!E:%{!S:ld %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
727 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
728 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
729 %{static:} %{L*} %D %o\
730 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
731 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
736 /* A vector of options to give to the linker.
737 These options are accumulated by %x,
738 and substituted into the linker command with %X. */
739 static int n_linker_options;
740 static char **linker_options;
742 /* A vector of options to give to the assembler.
743 These options are accumulated by -Wa,
744 and substituted into the assembler command with %Y. */
745 static int n_assembler_options;
746 static char **assembler_options;
748 /* A vector of options to give to the preprocessor.
749 These options are accumulated by -Wp,
750 and substituted into the preprocessor command with %Z. */
751 static int n_preprocessor_options;
752 static char **preprocessor_options;
754 /* Define how to map long options into short ones. */
756 /* This structure describes one mapping. */
759 /* The long option's name. */
761 /* The equivalent short option. */
763 /* Argument info. A string of flag chars; NULL equals no options.
764 a => argument required.
765 o => argument optional.
766 j => join argument to equivalent, making one word.
767 * => require other text after NAME as an argument. */
771 /* This is the table of mappings. Mappings are tried sequentially
772 for each option encountered; the first one that matches, wins. */
774 struct option_map option_map[] =
776 {"--all-warnings", "-Wall", 0},
777 {"--ansi", "-ansi", 0},
778 {"--assemble", "-S", 0},
779 {"--assert", "-A", "a"},
780 {"--comments", "-C", 0},
781 {"--compile", "-c", 0},
782 {"--debug", "-g", "oj"},
783 {"--define-macro", "-D", "aj"},
784 {"--dependencies", "-M", 0},
785 {"--dump", "-d", "a"},
786 {"--dumpbase", "-dumpbase", "a"},
787 {"--entry", "-e", 0},
788 {"--extra-warnings", "-W", 0},
789 {"--for-assembler", "-Wa", "a"},
790 {"--for-linker", "-Xlinker", "a"},
791 {"--force-link", "-u", "a"},
792 {"--imacros", "-imacros", "a"},
793 {"--include", "-include", "a"},
794 {"--include-barrier", "-I-", 0},
795 {"--include-directory", "-I", "aj"},
796 {"--include-directory-after", "-idirafter", "a"},
797 {"--include-prefix", "-iprefix", "a"},
798 {"--include-with-prefix", "-iwithprefix", "a"},
799 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
800 {"--include-with-prefix-after", "-iwithprefix", "a"},
801 {"--language", "-x", "a"},
802 {"--library-directory", "-L", "a"},
803 {"--machine", "-m", "aj"},
804 {"--machine-", "-m", "*j"},
805 {"--no-line-commands", "-P", 0},
806 {"--no-precompiled-includes", "-noprecomp", 0},
807 {"--no-standard-includes", "-nostdinc", 0},
808 {"--no-standard-libraries", "-nostdlib", 0},
809 {"--no-warnings", "-w", 0},
810 {"--optimize", "-O", "oj"},
811 {"--output", "-o", "a"},
812 {"--pedantic", "-pedantic", 0},
813 {"--pedantic-errors", "-pedantic-errors", 0},
814 {"--pipe", "-pipe", 0},
815 {"--prefix", "-B", "a"},
816 {"--preprocess", "-E", 0},
817 {"--print-search-dirs", "-print-search-dirs", 0},
818 {"--print-file-name", "-print-file-name=", "aj"},
819 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
820 {"--print-missing-file-dependencies", "-MG", 0},
821 {"--print-multi-lib", "-print-multi-lib", 0},
822 {"--print-multi-directory", "-print-multi-directory", 0},
823 {"--print-prog-name", "-print-prog-name=", "aj"},
824 {"--profile", "-p", 0},
825 {"--profile-blocks", "-a", 0},
826 {"--quiet", "-q", 0},
827 {"--save-temps", "-save-temps", 0},
828 {"--shared", "-shared", 0},
829 {"--silent", "-q", 0},
830 {"--specs", "-specs=", "aj"},
831 {"--static", "-static", 0},
832 {"--symbolic", "-symbolic", 0},
833 {"--target", "-b", "a"},
834 {"--trace-includes", "-H", 0},
835 {"--traditional", "-traditional", 0},
836 {"--traditional-cpp", "-traditional-cpp", 0},
837 {"--trigraphs", "-trigraphs", 0},
838 {"--undefine-macro", "-U", "aj"},
839 {"--use-version", "-V", "a"},
840 {"--user-dependencies", "-MM", 0},
841 {"--verbose", "-v", 0},
842 {"--version", "-dumpversion", 0},
843 {"--warn-", "-W", "*j"},
844 {"--write-dependencies", "-MD", 0},
845 {"--write-user-dependencies", "-MMD", 0},
849 /* Translate the options described by *ARGCP and *ARGVP.
850 Make a new vector and store it back in *ARGVP,
851 and store its length in *ARGVC. */
854 translate_options (argcp, argvp)
860 char **argv = *argvp;
861 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
865 newv[newindex++] = argv[i++];
869 /* Translate -- options. */
870 if (argv[i][0] == '-' && argv[i][1] == '-')
872 /* Find a mapping that applies to this option. */
873 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
875 int optlen = strlen (option_map[j].name);
876 int arglen = strlen (argv[i]);
877 int complen = arglen > optlen ? optlen : arglen;
878 char *arginfo = option_map[j].arg_info;
883 if (!strncmp (argv[i], option_map[j].name, complen))
890 k < sizeof (option_map) / sizeof (option_map[0]);
892 if (strlen (option_map[k].name) >= arglen
893 && !strncmp (argv[i], option_map[k].name, arglen))
895 error ("Ambiguous abbreviation %s", argv[i]);
899 if (k != sizeof (option_map) / sizeof (option_map[0]))
905 /* If the option has an argument, accept that. */
906 if (argv[i][optlen] == '=')
907 arg = argv[i] + optlen + 1;
909 /* If this mapping requires extra text at end of name,
910 accept that as "argument". */
911 else if (index (arginfo, '*') != 0)
912 arg = argv[i] + optlen;
914 /* Otherwise, extra text at end means mismatch.
915 Try other mappings. */
920 else if (index (arginfo, '*') != 0)
922 error ("Incomplete `%s' option", option_map[j].name);
926 /* Handle arguments. */
927 if (index (arginfo, 'a') != 0)
933 error ("Missing argument to `%s' option",
941 else if (index (arginfo, '*') != 0)
943 else if (index (arginfo, 'o') == 0)
946 error ("Extraneous argument to `%s' option",
951 /* Store the translation as one argv elt or as two. */
952 if (arg != 0 && index (arginfo, 'j') != 0)
953 newv[newindex++] = concat (option_map[j].equivalent, arg,
957 newv[newindex++] = option_map[j].equivalent;
958 newv[newindex++] = arg;
961 newv[newindex++] = option_map[j].equivalent;
969 /* Handle old-fashioned options--just copy them through,
970 with their arguments. */
971 else if (argv[i][0] == '-')
973 char *p = argv[i] + 1;
977 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
978 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
979 else if (WORD_SWITCH_TAKES_ARG (p))
980 nskip += WORD_SWITCH_TAKES_ARG (p);
981 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
984 else if (! strcmp (p, "Xlinker"))
987 /* Watch out for an option at the end of the command line that
988 is missing arguments, and avoid skipping past the end of the
990 if (nskip + i > argc)
995 newv[newindex++] = argv[i++];
1000 /* Ordinary operands, or +e options. */
1001 newv[newindex++] = argv[i++];
1014 #ifdef HAVE_STRERROR
1020 static char buffer[30];
1022 return "cannot access";
1024 if (e > 0 && e < sys_nerr)
1025 return sys_errlist[e];
1027 sprintf (buffer, "Unknown error %d", e);
1032 /* Read compilation specs from a file named FILENAME,
1033 replacing the default ones.
1035 A suffix which starts with `*' is a definition for
1036 one of the machine-specific sub-specs. The "suffix" should be
1037 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1038 The corresponding spec is stored in asm_spec, etc.,
1039 rather than in the `compilers' vector.
1041 Anything invalid in the file is a fatal error. */
1044 read_specs (filename)
1049 struct stat statbuf;
1054 fprintf (stderr, "Reading specs from %s\n", filename);
1056 /* Open and stat the file. */
1057 desc = open (filename, O_RDONLY, 0);
1059 pfatal_with_name (filename);
1060 if (stat (filename, &statbuf) < 0)
1061 pfatal_with_name (filename);
1063 /* Read contents of file into BUFFER. */
1064 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1065 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1067 pfatal_with_name (filename);
1068 buffer[readlen] = 0;
1071 /* Scan BUFFER for specs, putting them in the vector. */
1077 char *in, *out, *p1, *p2;
1079 /* Advance P in BUFFER to the next nonblank nocomment line. */
1080 p = skip_whitespace (p);
1084 /* Find the colon that should end the suffix. */
1086 while (*p1 && *p1 != ':' && *p1 != '\n') p1++;
1087 /* The colon shouldn't be missing. */
1089 fatal ("specs file malformed after %d characters", p1 - buffer);
1090 /* Skip back over trailing whitespace. */
1092 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) p2--;
1093 /* Copy the suffix to a string. */
1094 suffix = save_string (p, p2 - p);
1095 /* Find the next line. */
1096 p = skip_whitespace (p1 + 1);
1098 fatal ("specs file malformed after %d characters", p - buffer);
1100 /* Find next blank line. */
1101 while (*p1 && !(*p1 == '\n' && p1[1] == '\n')) p1++;
1102 /* Specs end at the blank line and do not include the newline. */
1103 spec = save_string (p, p1 - p);
1106 /* Delete backslash-newline sequences from the spec. */
1111 if (in[0] == '\\' && in[1] == '\n')
1113 else if (in[0] == '#')
1115 while (*in && *in != '\n') in++;
1122 if (suffix[0] == '*')
1124 if (! strcmp (suffix, "*link_command"))
1125 link_command_spec = spec;
1127 set_spec (suffix + 1, spec);
1131 /* Add this pair to the vector. */
1133 = ((struct compiler *)
1134 xrealloc (compilers, (n_compilers + 2) * sizeof (struct compiler)));
1135 compilers[n_compilers].suffix = suffix;
1136 bzero ((char *) compilers[n_compilers].spec,
1137 sizeof compilers[n_compilers].spec);
1138 compilers[n_compilers].spec[0] = spec;
1140 bzero ((char *) &compilers[n_compilers],
1141 sizeof compilers[n_compilers]);
1145 link_command_spec = spec;
1148 if (link_command_spec == 0)
1149 fatal ("spec file has no spec for linking");
1158 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1159 be considered whitespace. */
1160 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1162 else if (*p == '\n' || *p == ' ' || *p == '\t')
1166 while (*p != '\n') p++;
1176 /* Structure to keep track of the specs that have been defined so far.
1177 These are accessed using %(specname) or %[specname] in a compiler
1182 char *name; /* Name of the spec. */
1183 char *spec; /* The spec itself. */
1184 struct spec_list *next; /* Next spec in linked list. */
1187 /* List of specs that have been defined so far. */
1189 static struct spec_list *specs = (struct spec_list *) 0;
1191 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1192 removed; If the spec starts with a + then SPEC is added to the end of the
1196 set_spec (name, spec)
1200 struct spec_list *sl;
1203 /* See if the spec already exists */
1204 for (sl = specs; sl; sl = sl->next)
1205 if (strcmp (sl->name, name) == 0)
1210 /* Not found - make it */
1211 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1212 sl->name = save_string (name, strlen (name));
1213 sl->spec = save_string ("", 0);
1218 old_spec = sl->spec;
1219 if (name && spec[0] == '+' && isspace (spec[1]))
1220 sl->spec = concat (old_spec, spec + 1, NULL_PTR);
1222 sl->spec = save_string (spec, strlen (spec));
1224 if (! strcmp (name, "asm"))
1225 asm_spec = sl->spec;
1226 else if (! strcmp (name, "asm_final"))
1227 asm_final_spec = sl->spec;
1228 else if (! strcmp (name, "cc1"))
1229 cc1_spec = sl->spec;
1230 else if (! strcmp (name, "cc1plus"))
1231 cc1plus_spec = sl->spec;
1232 else if (! strcmp (name, "cpp"))
1233 cpp_spec = sl->spec;
1234 else if (! strcmp (name, "endfile"))
1235 endfile_spec = sl->spec;
1236 else if (! strcmp (name, "lib"))
1237 lib_spec = sl->spec;
1238 else if (! strcmp (name, "libgcc"))
1239 libgcc_spec = sl->spec;
1240 else if (! strcmp (name, "link"))
1241 link_spec = sl->spec;
1242 else if (! strcmp (name, "predefines"))
1243 cpp_predefines = sl->spec;
1244 else if (! strcmp (name, "signed_char"))
1245 signed_char_spec = sl->spec;
1246 else if (! strcmp (name, "startfile"))
1247 startfile_spec = sl->spec;
1248 else if (! strcmp (name, "switches_need_spaces"))
1249 switches_need_spaces = sl->spec;
1250 else if (! strcmp (name, "cross_compile"))
1251 cross_compile = atoi (sl->spec);
1252 else if (! strcmp (name, "multilib"))
1253 multilib_select = sl->spec;
1254 else if (! strcmp (name, "multilib_matches"))
1255 multilib_matches = sl->spec;
1256 else if (! strcmp (name, "multilib_extra"))
1257 multilib_extra = sl->spec;
1258 else if (! strcmp (name, "multilib_defaults"))
1259 multilib_defaults = sl->spec;
1260 else if (! strcmp (name, "version"))
1261 compiler_version = sl->spec;
1266 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
1268 if (! strcmp (name, extra_specs[i].name))
1270 extra_specs[i].spec = sl->spec;
1277 /* Free the old spec */
1282 /* Accumulate a command (program name and args), and run it. */
1284 /* Vector of pointers to arguments in the current line of specifications. */
1286 static char **argbuf;
1288 /* Number of elements allocated in argbuf. */
1290 static int argbuf_length;
1292 /* Number of elements in argbuf currently in use (containing args). */
1294 static int argbuf_index;
1296 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1297 temp file. Used only if MKTEMP_EACH_FILE. */
1299 static struct temp_name {
1300 char *suffix; /* suffix associated with the code. */
1301 int length; /* strlen (suffix). */
1302 int unique; /* Indicates whether %g or %u/%U was used. */
1303 char *filename; /* associated filename. */
1304 int filename_length; /* strlen (filename). */
1305 struct temp_name *next;
1308 /* Number of commands executed so far. */
1310 static int execution_count;
1312 /* Number of commands that exited with a signal. */
1314 static int signal_count;
1316 /* Name with which this program was invoked. */
1318 static char *programname;
1320 /* Structures to keep track of prefixes to try when looking for files. */
1324 char *prefix; /* String to prepend to the path. */
1325 struct prefix_list *next; /* Next in linked list. */
1326 int require_machine_suffix; /* Don't use without machine_suffix. */
1327 /* 2 means try both machine_suffix and just_machine_suffix. */
1328 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1333 struct prefix_list *plist; /* List of prefixes to try */
1334 int max_len; /* Max length of a prefix in PLIST */
1335 char *name; /* Name of this list (used in config stuff) */
1338 /* List of prefixes to try when looking for executables. */
1340 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1342 /* List of prefixes to try when looking for startup (crt0) files. */
1344 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1346 /* List of prefixes to try when looking for include files. */
1348 static struct path_prefix include_prefixes = { 0, 0, "include" };
1350 /* Suffix to attach to directories searched for commands.
1351 This looks like `MACHINE/VERSION/'. */
1353 static char *machine_suffix = 0;
1355 /* Suffix to attach to directories searched for commands.
1356 This is just `MACHINE/'. */
1358 static char *just_machine_suffix = 0;
1360 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1362 static char *gcc_exec_prefix;
1364 /* Default prefixes to attach to command names. */
1366 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1367 #undef MD_EXEC_PREFIX
1368 #undef MD_STARTFILE_PREFIX
1369 #undef MD_STARTFILE_PREFIX_1
1372 #ifndef STANDARD_EXEC_PREFIX
1373 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1374 #endif /* !defined STANDARD_EXEC_PREFIX */
1376 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1377 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1378 #ifdef MD_EXEC_PREFIX
1379 static char *md_exec_prefix = MD_EXEC_PREFIX;
1382 #ifndef STANDARD_STARTFILE_PREFIX
1383 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1384 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1386 #ifdef MD_STARTFILE_PREFIX
1387 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1389 #ifdef MD_STARTFILE_PREFIX_1
1390 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1392 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1393 static char *standard_startfile_prefix_1 = "/lib/";
1394 static char *standard_startfile_prefix_2 = "/usr/lib/";
1396 #ifndef TOOLDIR_BASE_PREFIX
1397 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1399 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1400 static char *tooldir_prefix;
1402 /* Subdirectory to use for locating libraries. Set by
1403 set_multilib_dir based on the compilation options. */
1405 static char *multilib_dir;
1407 /* Clear out the vector of arguments (after a command is executed). */
1415 /* Add one argument to the vector at the end.
1416 This is done when a space is seen or at the end of the line.
1417 If DELETE_ALWAYS is nonzero, the arg is a filename
1418 and the file should be deleted eventually.
1419 If DELETE_FAILURE is nonzero, the arg is a filename
1420 and the file should be deleted if this compilation fails. */
1423 store_arg (arg, delete_always, delete_failure)
1425 int delete_always, delete_failure;
1427 if (argbuf_index + 1 == argbuf_length)
1429 argbuf = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1432 argbuf[argbuf_index++] = arg;
1433 argbuf[argbuf_index] = 0;
1435 if (delete_always || delete_failure)
1436 record_temp_file (arg, delete_always, delete_failure);
1439 /* Record the names of temporary files we tell compilers to write,
1440 and delete them at the end of the run. */
1442 /* This is the common prefix we use to make temp file names.
1443 It is chosen once for each run of this program.
1444 It is substituted into a spec by %g.
1445 Thus, all temp file names contain this prefix.
1446 In practice, all temp file names start with this prefix.
1448 This prefix comes from the envvar TMPDIR if it is defined;
1449 otherwise, from the P_tmpdir macro if that is defined;
1450 otherwise, in /usr/tmp or /tmp;
1451 or finally the current directory if all else fails. */
1453 static char *temp_filename;
1455 /* Length of the prefix. */
1457 static int temp_filename_length;
1459 /* Define the list of temporary files to delete. */
1464 struct temp_file *next;
1467 /* Queue of files to delete on success or failure of compilation. */
1468 static struct temp_file *always_delete_queue;
1469 /* Queue of files to delete on failure of compilation. */
1470 static struct temp_file *failure_delete_queue;
1472 /* Record FILENAME as a file to be deleted automatically.
1473 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1474 otherwise delete it in any case.
1475 FAIL_DELETE nonzero means delete it if a compilation step fails;
1476 otherwise delete it in any case. */
1479 record_temp_file (filename, always_delete, fail_delete)
1484 register char *name;
1485 name = xmalloc (strlen (filename) + 1);
1486 strcpy (name, filename);
1490 register struct temp_file *temp;
1491 for (temp = always_delete_queue; temp; temp = temp->next)
1492 if (! strcmp (name, temp->name))
1494 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1495 temp->next = always_delete_queue;
1497 always_delete_queue = temp;
1503 register struct temp_file *temp;
1504 for (temp = failure_delete_queue; temp; temp = temp->next)
1505 if (! strcmp (name, temp->name))
1507 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1508 temp->next = failure_delete_queue;
1510 failure_delete_queue = temp;
1515 /* Delete all the temporary files whose names we previously recorded. */
1518 delete_if_ordinary (name)
1525 printf ("Delete %s? (y or n) ", name);
1529 while ((c = getchar ()) != '\n' && c != EOF) ;
1530 if (i == 'y' || i == 'Y')
1532 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1533 if (unlink (name) < 0)
1535 perror_with_name (name);
1539 delete_temp_files ()
1541 register struct temp_file *temp;
1543 for (temp = always_delete_queue; temp; temp = temp->next)
1544 delete_if_ordinary (temp->name);
1545 always_delete_queue = 0;
1548 /* Delete all the files to be deleted on error. */
1551 delete_failure_queue ()
1553 register struct temp_file *temp;
1555 for (temp = failure_delete_queue; temp; temp = temp->next)
1556 delete_if_ordinary (temp->name);
1560 clear_failure_queue ()
1562 failure_delete_queue = 0;
1565 /* Routine to add variables to the environment. We do this to pass
1566 the pathname of the gcc driver, and the directories search to the
1567 collect2 program, which is being run as ld. This way, we can be
1568 sure of executing the right compiler when collect2 wants to build
1569 constructors and destructors. Since the environment variables we
1570 use come from an obstack, we don't have to worry about allocating
1579 #ifndef VMS /* nor about VMS */
1581 extern char **environ;
1582 char **old_environ = environ;
1586 int str_len = strlen (str);
1590 while ((ch = *p++) != '\0' && ch != '=')
1596 /* Search for replacing an existing environment variable, and
1597 count the number of total environment variables. */
1598 for (envp = old_environ; *envp; envp++)
1601 if (!strncmp (str, *envp, name_len))
1608 /* Add a new environment variable */
1609 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1611 bcopy ((char *) old_environ, (char *) (environ + 1),
1612 sizeof (char *) * (num_envs+1));
1617 #endif /* HAVE_PUTENV */
1620 /* Build a list of search directories from PATHS.
1621 PREFIX is a string to prepend to the list.
1622 If CHECK_DIR_P is non-zero we ensure the directory exists.
1623 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1624 It is also used by the --print-search-dirs flag. */
1627 build_search_list (paths, prefix, check_dir_p)
1628 struct path_prefix *paths;
1632 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1634 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1635 int first_time = TRUE;
1636 struct prefix_list *pprefix;
1638 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1640 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1642 int len = strlen (pprefix->prefix);
1646 || is_directory (pprefix->prefix, machine_suffix, 0)))
1649 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1652 obstack_grow (&collect_obstack, pprefix->prefix, len);
1653 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1656 if (just_machine_suffix
1657 && pprefix->require_machine_suffix == 2
1659 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1662 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1665 obstack_grow (&collect_obstack, pprefix->prefix, len);
1666 obstack_grow (&collect_obstack, just_machine_suffix,
1670 if (!pprefix->require_machine_suffix)
1673 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1676 obstack_grow (&collect_obstack, pprefix->prefix, len);
1679 obstack_1grow (&collect_obstack, '\0');
1680 return obstack_finish (&collect_obstack);
1683 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1687 putenv_from_prefixes (paths, env_var)
1688 struct path_prefix *paths;
1691 putenv (build_search_list (paths, env_var, 1));
1694 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1695 access to check permissions.
1696 Return 0 if not found, otherwise return its name, allocated with malloc. */
1699 find_a_file (pprefix, name, mode)
1700 struct path_prefix *pprefix;
1705 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1706 struct prefix_list *pl;
1707 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1710 len += strlen (machine_suffix);
1712 temp = xmalloc (len);
1714 /* Determine the filename to execute (special case for absolute paths). */
1716 if (*name == '/' || *name == DIR_SEPARATOR)
1718 if (access (name, mode))
1720 strcpy (temp, name);
1725 for (pl = pprefix->plist; pl; pl = pl->next)
1729 /* Some systems have a suffix for executable files.
1730 So try appending that first. */
1731 if (file_suffix[0] != 0)
1733 strcpy (temp, pl->prefix);
1734 strcat (temp, machine_suffix);
1735 strcat (temp, name);
1736 strcat (temp, file_suffix);
1737 if (access (temp, mode) == 0)
1739 if (pl->used_flag_ptr != 0)
1740 *pl->used_flag_ptr = 1;
1745 /* Now try just the name. */
1746 strcpy (temp, pl->prefix);
1747 strcat (temp, machine_suffix);
1748 strcat (temp, name);
1749 if (access (temp, mode) == 0)
1751 if (pl->used_flag_ptr != 0)
1752 *pl->used_flag_ptr = 1;
1757 /* Certain prefixes are tried with just the machine type,
1758 not the version. This is used for finding as, ld, etc. */
1759 if (just_machine_suffix && pl->require_machine_suffix == 2)
1761 /* Some systems have a suffix for executable files.
1762 So try appending that first. */
1763 if (file_suffix[0] != 0)
1765 strcpy (temp, pl->prefix);
1766 strcat (temp, just_machine_suffix);
1767 strcat (temp, name);
1768 strcat (temp, file_suffix);
1769 if (access (temp, mode) == 0)
1771 if (pl->used_flag_ptr != 0)
1772 *pl->used_flag_ptr = 1;
1777 strcpy (temp, pl->prefix);
1778 strcat (temp, just_machine_suffix);
1779 strcat (temp, name);
1780 if (access (temp, mode) == 0)
1782 if (pl->used_flag_ptr != 0)
1783 *pl->used_flag_ptr = 1;
1788 /* Certain prefixes can't be used without the machine suffix
1789 when the machine or version is explicitly specified. */
1790 if (!pl->require_machine_suffix)
1792 /* Some systems have a suffix for executable files.
1793 So try appending that first. */
1794 if (file_suffix[0] != 0)
1796 strcpy (temp, pl->prefix);
1797 strcat (temp, name);
1798 strcat (temp, file_suffix);
1799 if (access (temp, mode) == 0)
1801 if (pl->used_flag_ptr != 0)
1802 *pl->used_flag_ptr = 1;
1807 strcpy (temp, pl->prefix);
1808 strcat (temp, name);
1809 if (access (temp, mode) == 0)
1811 if (pl->used_flag_ptr != 0)
1812 *pl->used_flag_ptr = 1;
1822 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
1823 at the start of the list, otherwise it goes at the end.
1825 If WARN is nonzero, we will warn if no file is found
1826 through this prefix. WARN should point to an int
1827 which will be set to 1 if this entry is used.
1829 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
1830 the complete value of machine_suffix.
1831 2 means try both machine_suffix and just_machine_suffix. */
1834 add_prefix (pprefix, prefix, first, require_machine_suffix, warn)
1835 struct path_prefix *pprefix;
1838 int require_machine_suffix;
1841 struct prefix_list *pl, **prev;
1844 if (!first && pprefix->plist)
1846 for (pl = pprefix->plist; pl->next; pl = pl->next)
1851 prev = &pprefix->plist;
1853 /* Keep track of the longest prefix */
1855 len = strlen (prefix);
1856 if (len > pprefix->max_len)
1857 pprefix->max_len = len;
1859 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
1860 pl->prefix = save_string (prefix, len);
1861 pl->require_machine_suffix = require_machine_suffix;
1862 pl->used_flag_ptr = warn;
1869 pl->next = (struct prefix_list *) 0;
1873 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
1876 unused_prefix_warnings (pprefix)
1877 struct path_prefix *pprefix;
1879 struct prefix_list *pl = pprefix->plist;
1883 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
1885 if (pl->require_machine_suffix && machine_suffix)
1886 error ("file path prefix `%s%s' never used", pl->prefix,
1889 error ("file path prefix `%s' never used", pl->prefix);
1891 /* Prevent duplicate warnings. */
1892 *pl->used_flag_ptr = 1;
1898 /* Get rid of all prefixes built up so far in *PLISTP. */
1901 free_path_prefix (pprefix)
1902 struct path_prefix *pprefix;
1904 struct prefix_list *pl = pprefix->plist;
1905 struct prefix_list *temp;
1911 free (temp->prefix);
1912 free ((char *) temp);
1914 pprefix->plist = (struct prefix_list *) 0;
1917 /* Execute the command specified by the arguments on the current line of spec.
1918 When using pipes, this includes several piped-together commands
1919 with `|' between them.
1921 Return 0 if successful, -1 if failed. */
1927 int n_commands; /* # of command. */
1931 char *prog; /* program name. */
1932 char **argv; /* vector of args. */
1933 int pid; /* pid of process for this command. */
1936 struct command *commands; /* each command buffer with above info. */
1938 /* Count # of piped commands. */
1939 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1940 if (strcmp (argbuf[i], "|") == 0)
1943 /* Get storage for each command. */
1945 = (struct command *) alloca (n_commands * sizeof (struct command));
1947 /* Split argbuf into its separate piped processes,
1948 and record info about each one.
1949 Also search for the programs that are to be run. */
1951 commands[0].prog = argbuf[0]; /* first command. */
1952 commands[0].argv = &argbuf[0];
1953 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
1955 commands[0].argv[0] = string;
1957 for (n_commands = 1, i = 0; i < argbuf_index; i++)
1958 if (strcmp (argbuf[i], "|") == 0)
1959 { /* each command. */
1960 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) || defined (OS2)
1961 fatal ("-pipe not supported");
1963 argbuf[i] = 0; /* termination of command args. */
1964 commands[n_commands].prog = argbuf[i + 1];
1965 commands[n_commands].argv = &argbuf[i + 1];
1966 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
1968 commands[n_commands].argv[0] = string;
1972 argbuf[argbuf_index] = 0;
1974 /* If -v, print what we are about to do, and maybe query. */
1978 /* Print each piped command as a separate line. */
1979 for (i = 0; i < n_commands ; i++)
1983 for (j = commands[i].argv; *j; j++)
1984 fprintf (stderr, " %s", *j);
1986 /* Print a pipe symbol after all but the last command. */
1987 if (i + 1 != n_commands)
1988 fprintf (stderr, " |");
1989 fprintf (stderr, "\n");
1993 fprintf (stderr, "\nGo ahead? (y or n) ");
1997 while (getchar () != '\n') ;
1998 if (i != 'y' && i != 'Y')
2003 /* Run each piped subprocess. */
2005 for (i = 0; i < n_commands; i++)
2007 char *errmsg_fmt, *errmsg_arg;
2008 char *string = commands[i].argv[0];
2010 commands[i].pid = pexecute (string, commands[i].argv,
2011 programname, temp_filename,
2012 &errmsg_fmt, &errmsg_arg,
2013 ((i == 0 ? PEXECUTE_FIRST : 0)
2014 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2015 | (string == commands[i].prog
2016 ? PEXECUTE_SEARCH : 0)
2017 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2019 if (commands[i].pid == -1)
2020 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2022 if (string != commands[i].prog)
2028 /* Wait for all the subprocesses to finish.
2029 We don't care what order they finish in;
2030 we know that N_COMMANDS waits will get them all.
2031 Ignore subprocesses that we don't know about,
2032 since they can be spawned by the process that exec'ed us. */
2037 for (i = 0; i < n_commands; )
2043 pid = pwait (commands[i].pid, &status, 0);
2047 for (j = 0; j < n_commands; j++)
2048 if (commands[j].pid == pid)
2053 if (WIFSIGNALED (status))
2055 fatal ("Internal compiler error: program %s got fatal signal %d",
2056 commands[j].prog, WTERMSIG (status));
2060 else if (WIFEXITED (status)
2061 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2071 /* Find all the switches given to us
2072 and make a vector describing them.
2073 The elements of the vector are strings, one per switch given.
2074 If a switch uses following arguments, then the `part1' field
2075 is the switch itself and the `args' field
2076 is a null-terminated vector containing the following arguments.
2077 The `live_cond' field is 1 if the switch is true in a conditional spec,
2078 -1 if false (overridden by a later switch), and is initialized to zero.
2079 The `valid' field is nonzero if any spec has looked at this switch;
2080 if it remains zero at the end of the run, it must be meaningless. */
2090 static struct switchstr *switches;
2092 static int n_switches;
2100 /* Also a vector of input files specified. */
2102 static struct infile *infiles;
2104 static int n_infiles;
2106 /* And a vector of corresponding output files is made up later. */
2108 static char **outfiles;
2110 /* Used to track if none of the -B paths are used. */
2113 /* Used to track if standard path isn't used and -b or -V is specified. */
2114 static int warn_std;
2116 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2117 static int *warn_std_ptr = 0;
2120 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2122 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2123 is true if we should look for an executable suffix as well. */
2126 convert_filename (name, do_exe)
2131 int len = strlen (name);
2133 #ifdef HAVE_OBJECT_SUFFIX
2134 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2136 && name[len - 2] == '.'
2137 && name[len - 1] == 'o')
2139 obstack_grow (&obstack, name[i], len - 2);
2140 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2141 name = obstack_finish (&obstack);
2145 #ifdef HAVE_EXECUTABLE_SUFFIX
2146 /* If there is no filetype, make it the executable suffix (which includes
2147 the "."). But don't get confused if we have just "-o". */
2148 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2151 for (i = len - 1; i >= 0; i--)
2152 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2155 for (i++; i < len; i++)
2159 obstack_grow (&obstack, name, len);
2160 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2161 name = obstack_finish (&obstack);
2168 /* Create the vector `switches' and its contents.
2169 Store its length in `n_switches'. */
2172 process_command (argc, argv)
2178 char *spec_lang = 0;
2179 int last_language_n_infiles;
2182 int lang_n_infiles = 0;
2184 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2189 /* Figure compiler version from version string. */
2191 compiler_version = save_string (version_string, strlen (version_string));
2192 for (temp = compiler_version; *temp; ++temp)
2201 /* Set up the default search paths. */
2203 if (gcc_exec_prefix)
2205 add_prefix (&exec_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2206 add_prefix (&startfile_prefixes, gcc_exec_prefix, 0, 0, NULL_PTR);
2209 /* COMPILER_PATH and LIBRARY_PATH have values
2210 that are lists of directory names with colons. */
2212 temp = getenv ("COMPILER_PATH");
2215 char *startp, *endp;
2216 char *nstore = (char *) alloca (strlen (temp) + 3);
2218 startp = endp = temp;
2221 if (*endp == PATH_SEPARATOR || *endp == 0)
2223 strncpy (nstore, startp, endp-startp);
2225 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2226 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2228 nstore[endp-startp] = DIR_SEPARATOR;
2229 nstore[endp-startp+1] = 0;
2232 nstore[endp-startp] = 0;
2233 add_prefix (&exec_prefixes, nstore, 0, 0, NULL_PTR);
2236 endp = startp = endp + 1;
2243 temp = getenv ("LIBRARY_PATH");
2244 if (temp && ! cross_compile)
2246 char *startp, *endp;
2247 char *nstore = (char *) alloca (strlen (temp) + 3);
2249 startp = endp = temp;
2252 if (*endp == PATH_SEPARATOR || *endp == 0)
2254 strncpy (nstore, startp, endp-startp);
2256 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2257 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2259 nstore[endp-startp] = DIR_SEPARATOR;
2260 nstore[endp-startp+1] = 0;
2263 nstore[endp-startp] = 0;
2264 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2267 endp = startp = endp + 1;
2274 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2275 temp = getenv ("LPATH");
2276 if (temp && ! cross_compile)
2278 char *startp, *endp;
2279 char *nstore = (char *) alloca (strlen (temp) + 3);
2281 startp = endp = temp;
2284 if (*endp == PATH_SEPARATOR || *endp == 0)
2286 strncpy (nstore, startp, endp-startp);
2288 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2289 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2291 nstore[endp-startp] = DIR_SEPARATOR;
2292 nstore[endp-startp+1] = 0;
2295 nstore[endp-startp] = 0;
2296 add_prefix (&startfile_prefixes, nstore, 0, 0, NULL_PTR);
2299 endp = startp = endp + 1;
2306 /* Convert new-style -- options to old-style. */
2307 translate_options (&argc, &argv);
2309 #ifdef LANG_SPECIFIC_DRIVER
2310 /* Do language-specific adjustment/addition of flags. */
2311 lang_specific_driver (&fatal, &argc, &argv);
2314 /* Scan argv twice. Here, the first time, just count how many switches
2315 there will be in their vector, and how many input files in theirs.
2316 Here we also parse the switches that cc itself uses (e.g. -v). */
2318 for (i = 1; i < argc; i++)
2320 if (! strcmp (argv[i], "-dumpspecs"))
2322 printf ("*asm:\n%s\n\n", asm_spec);
2323 printf ("*asm_final:\n%s\n\n", asm_final_spec);
2324 printf ("*cpp:\n%s\n\n", cpp_spec);
2325 printf ("*cc1:\n%s\n\n", cc1_spec);
2326 printf ("*cc1plus:\n%s\n\n", cc1plus_spec);
2327 printf ("*endfile:\n%s\n\n", endfile_spec);
2328 printf ("*link:\n%s\n\n", link_spec);
2329 printf ("*lib:\n%s\n\n", lib_spec);
2330 printf ("*libgcc:\n%s\n\n", libgcc_spec);
2331 printf ("*startfile:\n%s\n\n", startfile_spec);
2332 printf ("*switches_need_spaces:\n%s\n\n", switches_need_spaces);
2333 printf ("*signed_char:\n%s\n\n", signed_char_spec);
2334 printf ("*predefines:\n%s\n\n", cpp_predefines);
2335 printf ("*cross_compile:\n%d\n\n", cross_compile);
2336 printf ("*version:\n%s\n\n", compiler_version);
2337 printf ("*multilib:\n%s\n\n", multilib_select);
2338 printf ("*multilib_defaults:\n%s\n\n", multilib_defaults);
2339 printf ("*multilib_extra:\n%s\n\n", multilib_extra);
2340 printf ("*multilib_matches:\n%s\n\n", multilib_matches);
2345 for (j = 0; j < sizeof (extra_specs) / sizeof (extra_specs[0]); j++)
2346 printf ("*%s:\n%s\n\n", extra_specs[j].name,
2347 (extra_specs[j].spec) ? extra_specs[j].spec : "");
2352 else if (! strcmp (argv[i], "-dumpversion"))
2354 printf ("%s\n", version_string);
2357 else if (! strcmp (argv[i], "-dumpmachine"))
2359 printf ("%s\n", spec_machine);
2362 else if (! strcmp (argv[i], "-print-search-dirs"))
2363 print_search_dirs = 1;
2364 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2365 print_file_name = "libgcc.a";
2366 else if (! strncmp (argv[i], "-print-file-name=", 17))
2367 print_file_name = argv[i] + 17;
2368 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2369 print_prog_name = argv[i] + 17;
2370 else if (! strcmp (argv[i], "-print-multi-lib"))
2371 print_multi_lib = 1;
2372 else if (! strcmp (argv[i], "-print-multi-directory"))
2373 print_multi_directory = 1;
2374 else if (! strncmp (argv[i], "-Wa,", 4))
2377 /* Pass the rest of this option to the assembler. */
2379 n_assembler_options++;
2380 if (!assembler_options)
2382 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2385 = (char **) xrealloc (assembler_options,
2386 n_assembler_options * sizeof (char **));
2388 /* Split the argument at commas. */
2390 for (j = 4; argv[i][j]; j++)
2391 if (argv[i][j] == ',')
2393 assembler_options[n_assembler_options - 1]
2394 = save_string (argv[i] + prev, j - prev);
2395 n_assembler_options++;
2397 = (char **) xrealloc (assembler_options,
2398 n_assembler_options * sizeof (char **));
2401 /* Record the part after the last comma. */
2402 assembler_options[n_assembler_options - 1] = argv[i] + prev;
2404 else if (! strncmp (argv[i], "-Wp,", 4))
2407 /* Pass the rest of this option to the preprocessor. */
2409 n_preprocessor_options++;
2410 if (!preprocessor_options)
2411 preprocessor_options
2412 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2414 preprocessor_options
2415 = (char **) xrealloc (preprocessor_options,
2416 n_preprocessor_options * sizeof (char **));
2418 /* Split the argument at commas. */
2420 for (j = 4; argv[i][j]; j++)
2421 if (argv[i][j] == ',')
2423 preprocessor_options[n_preprocessor_options - 1]
2424 = save_string (argv[i] + prev, j - prev);
2425 n_preprocessor_options++;
2426 preprocessor_options
2427 = (char **) xrealloc (preprocessor_options,
2428 n_preprocessor_options * sizeof (char **));
2431 /* Record the part after the last comma. */
2432 preprocessor_options[n_preprocessor_options - 1] = argv[i] + prev;
2434 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2435 /* The +e options to the C++ front-end. */
2437 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2440 /* Split the argument at commas. */
2441 for (j = 3; argv[i][j]; j++)
2442 n_infiles += (argv[i][j] == ',');
2444 else if (strcmp (argv[i], "-Xlinker") == 0)
2447 fatal ("argument to `-Xlinker' is missing");
2452 else if (strncmp (argv[i], "-l", 2) == 0)
2454 else if (strcmp (argv[i], "-save-temps") == 0)
2456 save_temps_flag = 1;
2459 else if (strcmp (argv[i], "-specs") == 0)
2461 struct user_specs *user = (struct user_specs *)
2462 xmalloc (sizeof (struct user_specs));
2464 fatal ("argument to `-specs' is missing");
2466 user->next = (struct user_specs *)0;
2467 user->filename = argv[i];
2468 if (user_specs_tail)
2469 user_specs_tail->next = user;
2471 user_specs_head = user;
2472 user_specs_tail = user;
2474 else if (strncmp (argv[i], "-specs=", 7) == 0)
2476 struct user_specs *user = (struct user_specs *)
2477 xmalloc (sizeof (struct user_specs));
2478 if (strlen (argv[i]) == 7)
2479 fatal ("argument to `-specs=' is missing");
2481 user->next = (struct user_specs *)0;
2482 user->filename = argv[i]+7;
2483 if (user_specs_tail)
2484 user_specs_tail->next = user;
2486 user_specs_head = user;
2487 user_specs_tail = user;
2489 else if (argv[i][0] == '-' && argv[i][1] != 0)
2491 register char *p = &argv[i][1];
2492 register int c = *p;
2497 if (p[1] == 0 && i + 1 == argc)
2498 fatal ("argument to `-b' is missing");
2500 spec_machine = argv[++i];
2502 spec_machine = p + 1;
2504 warn_std_ptr = &warn_std;
2509 int *temp = (int *) xmalloc (sizeof (int));
2511 if (p[1] == 0 && i + 1 == argc)
2512 fatal ("argument to `-B' is missing");
2517 add_prefix (&exec_prefixes, value, 1, 0, &warn_B);
2518 add_prefix (&startfile_prefixes, value, 1, 0, &warn_B);
2519 add_prefix (&include_prefixes, concat (value, "include", NULL_PTR),
2522 /* As a kludge, if the arg is "[foo/]stageN/", just add
2523 "[foo/]include" to the include prefix. */
2525 int len = strlen (value);
2528 && (value[len - 8] == '/'
2529 || value[len - 8] == DIR_SEPARATOR)))
2530 && strncmp (value + len - 7, "stage", 5) == 0
2531 && isdigit (value[len - 2])
2532 && (value[len - 1] == '/'
2533 || value[len - 1] == DIR_SEPARATOR))
2536 add_prefix (&include_prefixes, "include",
2540 char *string = xmalloc (len + 1);
2541 strncpy (string, value, len-7);
2542 strcat (string, "include");
2543 add_prefix (&include_prefixes, string,
2551 case 'v': /* Print our subcommands and print versions. */
2553 /* If they do anything other than exactly `-v', don't set
2554 verbose_flag; rather, continue on to give the error. */
2561 if (p[1] == 0 && i + 1 == argc)
2562 fatal ("argument to `-V' is missing");
2564 spec_version = argv[++i];
2566 spec_version = p + 1;
2567 compiler_version = spec_version;
2568 warn_std_ptr = &warn_std;
2582 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
2583 argv[i] = convert_filename (argv[i], 1);
2585 argv[i+1] = convert_filename (argv[i+1], 1);
2593 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
2594 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
2595 else if (WORD_SWITCH_TAKES_ARG (p))
2596 i += WORD_SWITCH_TAKES_ARG (p);
2606 if (have_c && have_o && lang_n_infiles > 1)
2607 fatal ("cannot specify -o with -c and multiple compilations");
2609 /* Set up the search paths before we go looking for config files. */
2611 /* These come before the md prefixes so that we will find gcc's subcommands
2612 (such as cpp) rather than those of the host system. */
2613 /* Use 2 as fourth arg meaning try just the machine as a suffix,
2614 as well as trying the machine and the version. */
2616 add_prefix (&exec_prefixes, standard_exec_prefix, 0, 2, warn_std_ptr);
2617 add_prefix (&exec_prefixes, standard_exec_prefix_1, 0, 2, warn_std_ptr);
2620 add_prefix (&startfile_prefixes, standard_exec_prefix, 0, 1, warn_std_ptr);
2621 add_prefix (&startfile_prefixes, standard_exec_prefix_1, 0, 1, warn_std_ptr);
2623 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
2624 dir_separator_str, NULL_PTR);
2626 /* If tooldir is relative, base it on exec_prefixes. A relative
2627 tooldir lets us move the installed tree as a unit.
2629 If GCC_EXEC_PREFIX is defined, then we want to add two relative
2630 directories, so that we can search both the user specified directory
2631 and the standard place. */
2633 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
2635 if (gcc_exec_prefix)
2637 char *gcc_exec_tooldir_prefix
2638 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
2639 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
2641 add_prefix (&exec_prefixes,
2642 concat (gcc_exec_tooldir_prefix, "bin",
2643 dir_separator_str, NULL_PTR),
2645 add_prefix (&startfile_prefixes,
2646 concat (gcc_exec_tooldir_prefix, "lib",
2647 dir_separator_str, NULL_PTR),
2651 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
2652 dir_separator_str, spec_version,
2653 dir_separator_str, tooldir_prefix, NULL_PTR);
2656 add_prefix (&exec_prefixes,
2657 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
2659 add_prefix (&startfile_prefixes,
2660 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
2663 /* More prefixes are enabled in main, after we read the specs file
2664 and determine whether this is cross-compilation or not. */
2667 /* Then create the space for the vectors and scan again. */
2669 switches = ((struct switchstr *)
2670 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
2671 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
2674 last_language_n_infiles = -1;
2676 /* This, time, copy the text of each switch and store a pointer
2677 to the copy in the vector of switches.
2678 Store all the infiles in their vector. */
2680 for (i = 1; i < argc; i++)
2682 /* Just skip the switches that were handled by the preceding loop. */
2683 if (! strncmp (argv[i], "-Wa,", 4))
2685 else if (! strncmp (argv[i], "-Wp,", 4))
2687 else if (! strcmp (argv[i], "-print-search-dirs"))
2689 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2691 else if (! strncmp (argv[i], "-print-file-name=", 17))
2693 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2695 else if (! strcmp (argv[i], "-print-multi-lib"))
2697 else if (! strcmp (argv[i], "-print-multi-directory"))
2699 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2701 /* Compensate for the +e options to the C++ front-end;
2702 they're there simply for cfront call-compatibility. We do
2703 some magic in default_compilers to pass them down properly.
2704 Note we deliberately start at the `+' here, to avoid passing
2705 -e0 or -e1 down into the linker. */
2706 switches[n_switches].part1 = &argv[i][0];
2707 switches[n_switches].args = 0;
2708 switches[n_switches].live_cond = 0;
2709 switches[n_switches].valid = 0;
2712 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2715 /* Split the argument at commas. */
2717 for (j = 4; argv[i][j]; j++)
2718 if (argv[i][j] == ',')
2720 infiles[n_infiles].language = 0;
2721 infiles[n_infiles++].name
2722 = save_string (argv[i] + prev, j - prev);
2725 /* Record the part after the last comma. */
2726 infiles[n_infiles].language = 0;
2727 infiles[n_infiles++].name = argv[i] + prev;
2729 else if (strcmp (argv[i], "-Xlinker") == 0)
2731 infiles[n_infiles].language = 0;
2732 infiles[n_infiles++].name = argv[++i];
2734 else if (strncmp (argv[i], "-l", 2) == 0)
2736 infiles[n_infiles].language = 0;
2737 infiles[n_infiles++].name = argv[i];
2739 else if (strcmp (argv[i], "-specs") == 0)
2741 else if (strncmp (argv[i], "-specs=", 7) == 0)
2743 else if (argv[i][0] == '-' && argv[i][1] != 0)
2745 register char *p = &argv[i][1];
2746 register int c = *p;
2748 if (c == 'B' || c == 'b' || c == 'V')
2750 /* Skip a separate arg, if any. */
2757 if (p[1] == 0 && i + 1 == argc)
2758 fatal ("argument to `-x' is missing");
2760 spec_lang = argv[++i];
2763 if (! strcmp (spec_lang, "none"))
2764 /* Suppress the warning if -xnone comes after the last input
2765 file, because alternate command interfaces like g++ might
2766 find it useful to place -xnone after each input file. */
2769 last_language_n_infiles = n_infiles;
2772 switches[n_switches].part1 = p;
2773 /* Deal with option arguments in separate argv elements. */
2774 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
2775 || WORD_SWITCH_TAKES_ARG (p))
2778 int n_args = WORD_SWITCH_TAKES_ARG (p);
2782 /* Count only the option arguments in separate argv elements. */
2783 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
2785 if (i + n_args >= argc)
2786 fatal ("argument to `-%s' is missing", p);
2787 switches[n_switches].args
2788 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
2790 switches[n_switches].args[j++] = argv[++i];
2791 /* Null-terminate the vector. */
2792 switches[n_switches].args[j] = 0;
2794 else if (index (switches_need_spaces, c))
2796 /* On some systems, ld cannot handle some options without
2797 a space. So split the option from its argument. */
2798 char *part1 = (char *) xmalloc (2);
2802 switches[n_switches].part1 = part1;
2803 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
2804 switches[n_switches].args[0] = xmalloc (strlen (p));
2805 strcpy (switches[n_switches].args[0], &p[1]);
2806 switches[n_switches].args[1] = 0;
2809 switches[n_switches].args = 0;
2811 switches[n_switches].live_cond = 0;
2812 switches[n_switches].valid = 0;
2813 /* This is always valid, since gcc.c itself understands it. */
2814 if (!strcmp (p, "save-temps"))
2815 switches[n_switches].valid = 1;
2820 #ifdef HAVE_OBJECT_SUFFIX
2821 argv[i] = convert_filename (argv[i], 0);
2824 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
2826 perror_with_name (argv[i]);
2831 infiles[n_infiles].language = spec_lang;
2832 infiles[n_infiles++].name = argv[i];
2837 if (n_infiles == last_language_n_infiles && spec_lang != 0)
2838 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
2840 switches[n_switches].part1 = 0;
2841 infiles[n_infiles].name = 0;
2844 /* Process a spec string, accumulating and running commands. */
2846 /* These variables describe the input file name.
2847 input_file_number is the index on outfiles of this file,
2848 so that the output file name can be stored for later use by %o.
2849 input_basename is the start of the part of the input file
2850 sans all directory names, and basename_length is the number
2851 of characters starting there excluding the suffix .c or whatever. */
2853 static char *input_filename;
2854 static int input_file_number;
2855 static int input_filename_length;
2856 static int basename_length;
2857 static char *input_basename;
2858 static char *input_suffix;
2860 /* These are variables used within do_spec and do_spec_1. */
2862 /* Nonzero if an arg has been started and not yet terminated
2863 (with space, tab or newline). */
2864 static int arg_going;
2866 /* Nonzero means %d or %g has been seen; the next arg to be terminated
2867 is a temporary file name. */
2868 static int delete_this_arg;
2870 /* Nonzero means %w has been seen; the next arg to be terminated
2871 is the output file name of this compilation. */
2872 static int this_is_output_file;
2874 /* Nonzero means %s has been seen; the next arg to be terminated
2875 is the name of a library file and we should try the standard
2876 search dirs for it. */
2877 static int this_is_library_file;
2879 /* Nonzero means that the input of this command is coming from a pipe. */
2880 static int input_from_pipe;
2882 /* Process the spec SPEC and run the commands specified therein.
2883 Returns 0 if the spec is successfully processed; -1 if failed. */
2893 delete_this_arg = 0;
2894 this_is_output_file = 0;
2895 this_is_library_file = 0;
2896 input_from_pipe = 0;
2898 value = do_spec_1 (spec, 0, NULL_PTR);
2900 /* Force out any unfinished command.
2901 If -pipe, this forces out the last command if it ended in `|'. */
2904 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2907 if (argbuf_index > 0)
2914 /* Process the sub-spec SPEC as a portion of a larger spec.
2915 This is like processing a whole spec except that we do
2916 not initialize at the beginning and we do not supply a
2917 newline by default at the end.
2918 INSWITCH nonzero means don't process %-sequences in SPEC;
2919 in this case, % is treated as an ordinary character.
2920 This is used while substituting switches.
2921 INSWITCH nonzero also causes SPC not to terminate an argument.
2923 Value is zero unless a line was finished
2924 and the command on that line reported an error. */
2927 do_spec_1 (spec, inswitch, soft_matched_part)
2930 char *soft_matched_part;
2932 register char *p = spec;
2939 /* If substituting a switch, treat all chars like letters.
2940 Otherwise, NL, SPC, TAB and % are special. */
2941 switch (inswitch ? 'a' : c)
2944 /* End of line: finish any pending argument,
2945 then run the pending command if one has been started. */
2948 obstack_1grow (&obstack, 0);
2949 string = obstack_finish (&obstack);
2950 if (this_is_library_file)
2951 string = find_file (string);
2952 store_arg (string, delete_this_arg, this_is_output_file);
2953 if (this_is_output_file)
2954 outfiles[input_file_number] = string;
2958 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
2960 for (i = 0; i < n_switches; i++)
2961 if (!strcmp (switches[i].part1, "pipe"))
2964 /* A `|' before the newline means use a pipe here,
2965 but only if -pipe was specified.
2966 Otherwise, execute now and don't pass the `|' as an arg. */
2969 input_from_pipe = 1;
2970 switches[i].valid = 1;
2977 if (argbuf_index > 0)
2983 /* Reinitialize for a new command, and for a new argument. */
2986 delete_this_arg = 0;
2987 this_is_output_file = 0;
2988 this_is_library_file = 0;
2989 input_from_pipe = 0;
2993 /* End any pending argument. */
2996 obstack_1grow (&obstack, 0);
2997 string = obstack_finish (&obstack);
2998 if (this_is_library_file)
2999 string = find_file (string);
3000 store_arg (string, delete_this_arg, this_is_output_file);
3001 if (this_is_output_file)
3002 outfiles[input_file_number] = string;
3006 obstack_1grow (&obstack, c);
3012 /* Space or tab ends an argument if one is pending. */
3015 obstack_1grow (&obstack, 0);
3016 string = obstack_finish (&obstack);
3017 if (this_is_library_file)
3018 string = find_file (string);
3019 store_arg (string, delete_this_arg, this_is_output_file);
3020 if (this_is_output_file)
3021 outfiles[input_file_number] = string;
3023 /* Reinitialize for a new argument. */
3025 delete_this_arg = 0;
3026 this_is_output_file = 0;
3027 this_is_library_file = 0;
3034 fatal ("Invalid specification! Bug in cc.");
3037 obstack_grow (&obstack, input_basename, basename_length);
3042 delete_this_arg = 2;
3045 /* Dump out the directories specified with LIBRARY_PATH,
3046 followed by the absolute directories
3047 that we search for startfiles. */
3050 struct prefix_list *pl = startfile_prefixes.plist;
3052 char *buffer = (char *) xmalloc (bufsize);
3055 for (; pl; pl = pl->next)
3057 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3058 /* Used on systems which record the specified -L dirs
3059 and use them to search for dynamic linking. */
3060 /* Relative directories always come from -B,
3061 and it is better not to use them for searching
3062 at run time. In particular, stage1 loses */
3063 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3066 /* Try subdirectory if there is one. */
3067 if (multilib_dir != NULL)
3071 if (strlen (pl->prefix) + strlen (machine_suffix)
3073 bufsize = (strlen (pl->prefix)
3074 + strlen (machine_suffix)) * 2 + 1;
3075 buffer = (char *) xrealloc (buffer, bufsize);
3076 strcpy (buffer, pl->prefix);
3077 strcat (buffer, machine_suffix);
3078 if (is_directory (buffer, multilib_dir, 1))
3080 do_spec_1 ("-L", 0, NULL_PTR);
3081 #ifdef SPACE_AFTER_L_OPTION
3082 do_spec_1 (" ", 0, NULL_PTR);
3084 do_spec_1 (buffer, 1, NULL_PTR);
3085 do_spec_1 (multilib_dir, 1, NULL_PTR);
3086 /* Make this a separate argument. */
3087 do_spec_1 (" ", 0, NULL_PTR);
3090 if (!pl->require_machine_suffix)
3092 if (is_directory (pl->prefix, multilib_dir, 1))
3094 do_spec_1 ("-L", 0, NULL_PTR);
3095 #ifdef SPACE_AFTER_L_OPTION
3096 do_spec_1 (" ", 0, NULL_PTR);
3098 do_spec_1 (pl->prefix, 1, NULL_PTR);
3099 do_spec_1 (multilib_dir, 1, NULL_PTR);
3100 /* Make this a separate argument. */
3101 do_spec_1 (" ", 0, NULL_PTR);
3107 if (is_directory (pl->prefix, machine_suffix, 1))
3109 do_spec_1 ("-L", 0, NULL_PTR);
3110 #ifdef SPACE_AFTER_L_OPTION
3111 do_spec_1 (" ", 0, NULL_PTR);
3113 do_spec_1 (pl->prefix, 1, NULL_PTR);
3114 /* Remove slash from machine_suffix. */
3115 if (strlen (machine_suffix) >= bufsize)
3116 bufsize = strlen (machine_suffix) * 2 + 1;
3117 buffer = (char *) xrealloc (buffer, bufsize);
3118 strcpy (buffer, machine_suffix);
3119 idx = strlen (buffer);
3120 if (buffer[idx - 1] == '/'
3121 || buffer[idx - 1] == DIR_SEPARATOR)
3122 buffer[idx - 1] = 0;
3123 do_spec_1 (buffer, 1, NULL_PTR);
3124 /* Make this a separate argument. */
3125 do_spec_1 (" ", 0, NULL_PTR);
3128 if (!pl->require_machine_suffix)
3130 if (is_directory (pl->prefix, "", 1))
3132 do_spec_1 ("-L", 0, NULL_PTR);
3133 #ifdef SPACE_AFTER_L_OPTION
3134 do_spec_1 (" ", 0, NULL_PTR);
3136 /* Remove slash from pl->prefix. */
3137 if (strlen (pl->prefix) >= bufsize)
3138 bufsize = strlen (pl->prefix) * 2 + 1;
3139 buffer = (char *) xrealloc (buffer, bufsize);
3140 strcpy (buffer, pl->prefix);
3141 idx = strlen (buffer);
3142 if (buffer[idx - 1] == '/'
3143 || buffer[idx - 1] == DIR_SEPARATOR)
3144 buffer[idx - 1] = 0;
3145 do_spec_1 (buffer, 1, NULL_PTR);
3146 /* Make this a separate argument. */
3147 do_spec_1 (" ", 0, NULL_PTR);
3156 /* {...:%efoo} means report an error with `foo' as error message
3157 and don't execute any more commands for this file. */
3161 while (*p != 0 && *p != '\n') p++;
3162 buf = (char *) alloca (p - q + 1);
3163 strncpy (buf, q, p - q);
3173 if (save_temps_flag)
3175 obstack_grow (&obstack, input_basename, basename_length);
3176 delete_this_arg = 0;
3180 #ifdef MKTEMP_EACH_FILE
3181 /* ??? This has a problem: the total number of
3182 values mktemp can return is limited.
3183 That matters for the names of object files.
3184 In 2.4, do something about that. */
3185 struct temp_name *t;
3187 while (*p == '.' || isalpha (*p)
3188 || (p[0] == '%' && p[1] == 'O'))
3191 /* See if we already have an association of %g/%u/%U and
3193 for (t = temp_names; t; t = t->next)
3194 if (t->length == p - suffix
3195 && strncmp (t->suffix, suffix, p - suffix) == 0
3196 && t->unique == (c != 'g'))
3199 /* Make a new association if needed. %u requires one. */
3200 if (t == 0 || c == 'u')
3204 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3205 t->next = temp_names;
3208 t->length = p - suffix;
3209 t->suffix = save_string (suffix, p - suffix);
3210 t->unique = (c != 'g');
3211 temp_filename = choose_temp_base ();
3212 temp_filename_length = strlen (temp_filename);
3213 t->filename = temp_filename;
3214 t->filename_length = temp_filename_length;
3217 obstack_grow (&obstack, t->filename, t->filename_length);
3218 delete_this_arg = 1;
3220 obstack_grow (&obstack, temp_filename, temp_filename_length);
3221 if (c == 'u' || c == 'U')
3227 sprintf (buff, "%d", unique);
3228 obstack_grow (&obstack, buff, strlen (buff));
3231 delete_this_arg = 1;
3237 obstack_grow (&obstack, input_filename, input_filename_length);
3243 struct prefix_list *pl = include_prefixes.plist;
3245 if (gcc_exec_prefix)
3247 do_spec_1 ("-iprefix", 1, NULL_PTR);
3248 /* Make this a separate argument. */
3249 do_spec_1 (" ", 0, NULL_PTR);
3250 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3251 do_spec_1 (" ", 0, NULL_PTR);
3254 for (; pl; pl = pl->next)
3256 do_spec_1 ("-isystem", 1, NULL_PTR);
3257 /* Make this a separate argument. */
3258 do_spec_1 (" ", 0, NULL_PTR);
3259 do_spec_1 (pl->prefix, 1, NULL_PTR);
3260 do_spec_1 (" ", 0, NULL_PTR);
3266 for (i = 0; i < n_infiles; i++)
3267 store_arg (outfiles[i], 0, 0);
3271 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3276 this_is_library_file = 1;
3280 this_is_output_file = 1;
3285 int cur_index = argbuf_index;
3286 /* Handle the {...} following the %W. */
3289 p = handle_braces (p + 1);
3292 /* If any args were output, mark the last one for deletion
3294 if (argbuf_index != cur_index)
3295 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3299 /* %x{OPTION} records OPTION for %X to output. */
3305 /* Skip past the option value and make a copy. */
3310 string = save_string (p1 + 1, p - p1 - 2);
3312 /* See if we already recorded this option. */
3313 for (i = 0; i < n_linker_options; i++)
3314 if (! strcmp (string, linker_options[i]))
3320 /* This option is new; add it. */
3322 if (!linker_options)
3324 = (char **) xmalloc (n_linker_options * sizeof (char **));
3327 = (char **) xrealloc (linker_options,
3328 n_linker_options * sizeof (char **));
3330 linker_options[n_linker_options - 1] = string;
3334 /* Dump out the options accumulated previously using %x. */
3336 for (i = 0; i < n_linker_options; i++)
3338 do_spec_1 (linker_options[i], 1, NULL_PTR);
3339 /* Make each accumulated option a separate argument. */
3340 do_spec_1 (" ", 0, NULL_PTR);
3344 /* Dump out the options accumulated previously using -Wa,. */
3346 for (i = 0; i < n_assembler_options; i++)
3348 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3349 /* Make each accumulated option a separate argument. */
3350 do_spec_1 (" ", 0, NULL_PTR);
3354 /* Dump out the options accumulated previously using -Wp,. */
3356 for (i = 0; i < n_preprocessor_options; i++)
3358 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3359 /* Make each accumulated option a separate argument. */
3360 do_spec_1 (" ", 0, NULL_PTR);
3364 /* Here are digits and numbers that just process
3365 a certain constant string as a spec. */
3368 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3374 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3380 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3386 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3392 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3398 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3404 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3410 value = do_spec_1 (link_spec, 0, NULL_PTR);
3416 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3422 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3429 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3433 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3437 if (! strncmp (y, "-D", 2))
3438 /* Copy the whole option. */
3439 while (*y && *y != ' ' && *y != '\t')
3441 else if (*y == ' ' || *y == '\t')
3442 /* Copy whitespace to the result. */
3444 /* Don't copy other options. */
3451 value = do_spec_1 (buf, 0, NULL_PTR);
3459 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3463 /* Copy all of CPP_PREDEFINES into BUF,
3464 but put __ after every -D and at the end of each arg. */
3468 if (! strncmp (y, "-D", 2))
3476 || (*(y+1) != '_' && ! isupper (*(y+1))))
3478 /* Stick __ at front of macro name. */
3481 /* Arrange to stick __ at the end as well. */
3485 /* Copy the macro name. */
3486 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3495 /* Copy the value given, if any. */
3496 while (*y && *y != ' ' && *y != '\t')
3499 else if (*y == ' ' || *y == '\t')
3500 /* Copy whitespace to the result. */
3502 /* Don't copy -A options */
3508 /* Copy all of CPP_PREDEFINES into BUF,
3509 but put __ after every -D. */
3513 if (! strncmp (y, "-D", 2))
3518 || (*(y+1) != '_' && ! isupper (*(y+1))))
3520 /* Stick -D__ at front of macro name. */
3526 /* Copy the macro name. */
3527 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3530 /* Copy the value given, if any. */
3531 while (*y && *y != ' ' && *y != '\t')
3536 /* Do not copy this macro - we have just done it before */
3537 while (*y && *y != ' ' && *y != '\t')
3541 else if (*y == ' ' || *y == '\t')
3542 /* Copy whitespace to the result. */
3544 /* Don't copy -A options */
3550 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
3554 if (! strncmp (y, "-A", 2))
3555 /* Copy the whole option. */
3556 while (*y && *y != ' ' && *y != '\t')
3558 else if (*y == ' ' || *y == '\t')
3559 /* Copy whitespace to the result. */
3561 /* Don't copy other options. */
3568 value = do_spec_1 (buf, 0, NULL_PTR);
3575 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
3580 /* Here we define characters other than letters and digits. */
3583 p = handle_braces (p);
3589 obstack_1grow (&obstack, '%');
3593 do_spec_1 (soft_matched_part, 1, NULL_PTR);
3594 do_spec_1 (" ", 0, NULL_PTR);
3597 /* Process a string found as the value of a spec given by name.
3598 This feature allows individual machine descriptions
3599 to add and use their own specs.
3600 %[...] modifies -D options the way %P does;
3601 %(...) uses the spec unmodified. */
3606 struct spec_list *sl;
3609 /* The string after the S/P is the name of a spec that is to be
3611 while (*p && *p != ')' && *p != ']')
3614 /* See if it's in the list */
3615 for (len = p - name, sl = specs; sl; sl = sl->next)
3616 if (strncmp (sl->name, name, len) == 0 && !sl->name[len])
3626 value = do_spec_1 (name, 0, NULL_PTR);
3632 char *x = (char *) alloca (strlen (name) * 2 + 1);
3636 /* Copy all of NAME into BUF, but put __ after
3637 every -D and at the end of each arg, */
3642 if (! strncmp (y, "-D", 2))
3652 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
3653 || *y == '}' || *y == 0))
3666 value = do_spec_1 (buf, 0, NULL_PTR);
3672 /* Discard the closing paren or bracket. */
3680 int c1 = *p++; /* Select first or second version number. */
3681 char *v = compiler_version;
3684 /* The format of the version string is
3685 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3687 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3688 while (! isdigit (*v))
3690 if (v > compiler_version && v[-1] != '-')
3693 /* If desired, advance to second version number. */
3696 /* Set V after the first period. */
3697 while (isdigit (*v))
3704 /* Set Q at the next period or at the end. */
3706 while (isdigit (*q))
3708 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
3711 /* Put that part into the command. */
3712 obstack_grow (&obstack, v, q - v);
3718 if (input_from_pipe)
3719 do_spec_1 ("-", 0, NULL_PTR);
3728 /* Backslash: treat next character as ordinary. */
3733 /* Ordinary character: put it into the current argument. */
3734 obstack_1grow (&obstack, c);
3738 return 0; /* End of string */
3741 /* Return 0 if we call do_spec_1 and that returns -1. */
3752 int include_blanks = 1;
3755 /* A '^' after the open-brace means to not give blanks before args. */
3756 include_blanks = 0, ++p;
3759 /* A `|' after the open-brace means,
3760 if the test fails, output a single minus sign rather than nothing.
3761 This is used in %{|!pipe:...}. */
3765 /* A `!' after the open-brace negates the condition:
3766 succeed if the specified switch is not present. */
3770 /* A `.' after the open-brace means test against the current suffix. */
3780 while (*p != ':' && *p != '}') p++;
3783 register int count = 1;
3801 int found = (input_suffix != 0
3802 && strlen (input_suffix) == p - filter
3803 && strncmp (input_suffix, filter, p - filter) == 0);
3809 && do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3814 else if (p[-1] == '*' && p[0] == '}')
3816 /* Substitute all matching switches as separate args. */
3819 for (i = 0; i < n_switches; i++)
3820 if (!strncmp (switches[i].part1, filter, p - filter)
3821 && check_live_switch (i, p - filter))
3822 give_switch (i, 0, include_blanks);
3826 /* Test for presence of the specified switch. */
3830 /* If name specified ends in *, as in {x*:...},
3831 check for %* and handle that case. */
3832 if (p[-1] == '*' && !negate)
3837 /* First see whether we have %*. */
3841 if (*r == '%' && r[1] == '*')
3845 /* If we do, handle that case. */
3848 /* Substitute all matching switches as separate args.
3849 But do this by substituting for %*
3850 in the text that follows the colon. */
3852 unsigned hard_match_len = p - filter - 1;
3853 char *string = save_string (p + 1, q - p - 2);
3855 for (i = 0; i < n_switches; i++)
3856 if (!strncmp (switches[i].part1, filter, hard_match_len)
3857 && check_live_switch (i, -1))
3859 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
3860 /* Pass any arguments this switch has. */
3861 give_switch (i, 1, 1);
3868 /* If name specified ends in *, as in {x*:...},
3869 check for presence of any switch name starting with x. */
3872 for (i = 0; i < n_switches; i++)
3874 unsigned hard_match_len = p - filter - 1;
3876 if (!strncmp (switches[i].part1, filter, hard_match_len)
3877 && check_live_switch (i, hard_match_len))
3883 /* Otherwise, check for presence of exact name specified. */
3886 for (i = 0; i < n_switches; i++)
3888 if (!strncmp (switches[i].part1, filter, p - filter)
3889 && switches[i].part1[p - filter] == 0
3890 && check_live_switch (i, -1))
3898 /* If it is as desired (present for %{s...}, absent for %{-s...})
3899 then substitute either the switch or the specified
3900 conditional text. */
3901 if (present != negate)
3905 give_switch (i, 0, include_blanks);
3909 if (do_spec_1 (save_string (p + 1, q - p - 2), 0, NULL_PTR) < 0)
3915 /* Here if a %{|...} conditional fails: output a minus sign,
3916 which means "standard output" or "standard input". */
3917 do_spec_1 ("-", 0, NULL_PTR);
3924 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
3925 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
3926 spec, or -1 if either exact match or %* is used.
3928 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
3929 whose value does not begin with "no-" is obsoleted by the same value
3930 with the "no-", similarly for a switch with the "no-" prefix. */
3933 check_live_switch (switchnum, prefix_length)
3937 char *name = switches[switchnum].part1;
3940 /* In the common case of {<at-most-one-letter>*}, a negating
3941 switch would always match, so ignore that case. We will just
3942 send the conflicting switches to the compiler phase. */
3943 if (prefix_length >= 0 && prefix_length <= 1)
3946 /* If we already processed this switch and determined if it was
3947 live or not, return our past determination. */
3948 if (switches[switchnum].live_cond != 0)
3949 return switches[switchnum].live_cond > 0;
3951 /* Now search for duplicate in a manner that depends on the name. */
3955 for (i = switchnum + 1; i < n_switches; i++)
3956 if (switches[i].part1[0] == 'O')
3958 switches[switchnum].valid = 1;
3959 switches[switchnum].live_cond = -1;
3964 case 'W': case 'f': case 'm':
3965 if (! strncmp (name + 1, "no-", 3))
3967 /* We have Xno-YYY, search for XYYY. */
3968 for (i = switchnum + 1; i < n_switches; i++)
3969 if (switches[i].part1[0] == name[0]
3970 && ! strcmp (&switches[i].part1[1], &name[4]))
3972 switches[switchnum].valid = 1;
3973 switches[switchnum].live_cond = -1;
3979 /* We have XYYY, search for Xno-YYY. */
3980 for (i = switchnum + 1; i < n_switches; i++)
3981 if (switches[i].part1[0] == name[0]
3982 && switches[i].part1[1] == 'n'
3983 && switches[i].part1[2] == 'o'
3984 && switches[i].part1[3] == '-'
3985 && !strcmp (&switches[i].part1[4], &name[1]))
3987 switches[switchnum].valid = 1;
3988 switches[switchnum].live_cond = -1;
3995 /* Otherwise the switch is live. */
3996 switches[switchnum].live_cond = 1;
4000 /* Pass a switch to the current accumulating command
4001 in the same form that we received it.
4002 SWITCHNUM identifies the switch; it is an index into
4003 the vector of switches gcc received, which is `switches'.
4004 This cannot fail since it never finishes a command line.
4006 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4008 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4012 give_switch (switchnum, omit_first_word, include_blanks)
4014 int omit_first_word;
4017 if (!omit_first_word)
4019 do_spec_1 ("-", 0, NULL_PTR);
4020 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4023 if (switches[switchnum].args != 0)
4026 for (p = switches[switchnum].args; *p; p++)
4029 do_spec_1 (" ", 0, NULL_PTR);
4030 do_spec_1 (*p, 1, NULL_PTR);
4034 do_spec_1 (" ", 0, NULL_PTR);
4035 switches[switchnum].valid = 1;
4038 /* Search for a file named NAME trying various prefixes including the
4039 user's -B prefix and some standard ones.
4040 Return the absolute file name found. If nothing is found, return NAME. */
4048 /* Try multilib_dir if it is defined. */
4049 if (multilib_dir != NULL)
4053 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4054 strcpy (try, multilib_dir);
4055 strcat (try, dir_separator_str);
4058 newname = find_a_file (&startfile_prefixes, try, R_OK);
4060 /* If we don't find it in the multi library dir, then fall
4061 through and look for it in the normal places. */
4062 if (newname != NULL)
4066 newname = find_a_file (&startfile_prefixes, name, R_OK);
4067 return newname ? newname : name;
4070 /* Determine whether a directory exists. If LINKER, return 0 for
4071 certain fixed names not needed by the linker. If not LINKER, it is
4072 only important to return 0 if the host machine has a small ARG_MAX
4076 is_directory (path1, path2, linker)
4081 int len1 = strlen (path1);
4082 int len2 = strlen (path2);
4083 char *path = (char *) alloca (3 + len1 + len2);
4087 #ifndef SMALL_ARG_MAX
4092 /* Construct the path from the two parts. Ensure the string ends with "/.".
4093 The resulting path will be a directory even if the given path is a
4095 bcopy (path1, path, len1);
4096 bcopy (path2, path + len1, len2);
4097 cp = path + len1 + len2;
4098 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4099 *cp++ = DIR_SEPARATOR;
4103 /* Exclude directories that the linker is known to search. */
4106 && strcmp (path, concat (dir_separator_str, "lib",
4107 dir_separator_str, ".", NULL_PTR)) == 0)
4109 && strcmp (path, concat (dir_separator_str, "usr",
4110 dir_separator_str, "lib",
4111 dir_separator_str, ".", NULL_PTR)) == 0)))
4114 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4117 /* On fatal signals, delete all the temporary files. */
4120 fatal_error (signum)
4123 signal (signum, SIG_DFL);
4124 delete_failure_queue ();
4125 delete_temp_files ();
4126 /* Get the same signal again, this time not handled,
4127 so its normal effect occurs. */
4128 kill (getpid (), signum);
4139 int linker_was_run = 0;
4140 char *explicit_link_files;
4143 struct user_specs *uptr;
4145 p = argv[0] + strlen (argv[0]);
4146 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4149 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4150 signal (SIGINT, fatal_error);
4152 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4153 signal (SIGHUP, fatal_error);
4155 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4156 signal (SIGTERM, fatal_error);
4158 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4159 signal (SIGPIPE, fatal_error);
4163 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4165 obstack_init (&obstack);
4167 /* Build multilib_select, et. al from the separate lines that make up each
4168 multilib selection. */
4170 char **q = multilib_raw;
4173 obstack_init (&multilib_obstack);
4174 while ((p = *q++) != (char *) 0)
4175 obstack_grow (&multilib_obstack, p, strlen (p));
4177 obstack_1grow (&multilib_obstack, 0);
4178 multilib_select = obstack_finish (&multilib_obstack);
4180 q = multilib_matches_raw;
4181 while ((p = *q++) != (char *) 0)
4182 obstack_grow (&multilib_obstack, p, strlen (p));
4184 obstack_1grow (&multilib_obstack, 0);
4185 multilib_matches = obstack_finish (&multilib_obstack);
4189 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4193 obstack_1grow (&multilib_obstack, ' ');
4194 obstack_grow (&multilib_obstack,
4195 multilib_defaults_raw[i],
4196 strlen (multilib_defaults_raw[i]));
4200 obstack_1grow (&multilib_obstack, 0);
4201 multilib_defaults = obstack_finish (&multilib_obstack);
4204 /* Set up to remember the pathname of gcc and any options
4205 needed for collect. We use argv[0] instead of programname because
4206 we need the complete pathname. */
4207 obstack_init (&collect_obstack);
4208 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4209 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4210 putenv (obstack_finish (&collect_obstack));
4212 #ifdef INIT_ENVIRONMENT
4213 /* Set up any other necessary machine specific environment variables. */
4214 putenv (INIT_ENVIRONMENT);
4217 /* Choose directory for temp files. */
4219 temp_filename = choose_temp_base ();
4220 temp_filename_length = strlen (temp_filename);
4222 /* Make a table of what switches there are (switches, n_switches).
4223 Make a table of specified input files (infiles, n_infiles).
4224 Decode switches that are handled locally. */
4226 process_command (argc, argv);
4228 /* Initialize the vector of specs to just the default.
4229 This means one element containing 0s, as a terminator. */
4231 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4232 bcopy ((char *) default_compilers, (char *) compilers,
4233 sizeof default_compilers);
4234 n_compilers = n_default_compilers;
4236 /* Read specs from a file if there is one. */
4238 machine_suffix = concat (spec_machine, dir_separator_str,
4239 spec_version, dir_separator_str, NULL_PTR);
4240 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4242 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4243 /* Read the specs file unless it is a default one. */
4244 if (specs_file != 0 && strcmp (specs_file, "specs"))
4245 read_specs (specs_file);
4251 for (k = 0; k < sizeof (extra_specs) / sizeof (extra_specs[0]); k++)
4252 set_spec (extra_specs[k].name, extra_specs[k].spec);
4256 /* Process any user specified specs in the order given on the command
4258 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4260 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4261 read_specs (filename ? filename : uptr->filename);
4264 /* If not cross-compiling, look for startfiles in the standard places. */
4265 /* The fact that these are done here, after reading the specs file,
4266 means that it cannot be found in these directories.
4267 But that's okay. It should never be there anyway. */
4270 #ifdef MD_EXEC_PREFIX
4271 add_prefix (&exec_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4272 add_prefix (&startfile_prefixes, md_exec_prefix, 0, 0, NULL_PTR);
4275 #ifdef MD_STARTFILE_PREFIX
4276 add_prefix (&startfile_prefixes, md_startfile_prefix, 0, 0, NULL_PTR);
4279 #ifdef MD_STARTFILE_PREFIX_1
4280 add_prefix (&startfile_prefixes, md_startfile_prefix_1, 0, 0, NULL_PTR);
4283 /* If standard_startfile_prefix is relative, base it on
4284 standard_exec_prefix. This lets us move the installed tree
4285 as a unit. If GCC_EXEC_PREFIX is defined, base
4286 standard_startfile_prefix on that as well. */
4287 if (*standard_startfile_prefix == '/'
4288 || *standard_startfile_prefix == DIR_SEPARATOR)
4289 add_prefix (&startfile_prefixes, standard_startfile_prefix, 0, 0,
4293 if (gcc_exec_prefix)
4294 add_prefix (&startfile_prefixes,
4295 concat (gcc_exec_prefix, machine_suffix,
4296 standard_startfile_prefix, NULL_PTR),
4298 add_prefix (&startfile_prefixes,
4299 concat (standard_exec_prefix,
4301 standard_startfile_prefix, NULL_PTR),
4305 add_prefix (&startfile_prefixes, standard_startfile_prefix_1, 0, 0,
4307 add_prefix (&startfile_prefixes, standard_startfile_prefix_2, 0, 0,
4309 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4310 add_prefix (&startfile_prefixes, "./", 0, 1, NULL_PTR);
4315 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4316 add_prefix (&startfile_prefixes,
4317 concat (gcc_exec_prefix, machine_suffix,
4318 standard_startfile_prefix, NULL_PTR),
4322 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4323 if (gcc_exec_prefix)
4325 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4326 + strlen (spec_version)
4327 + strlen (spec_machine) + 3);
4328 strcpy (temp, gcc_exec_prefix);
4329 strcat (temp, spec_machine);
4330 strcat (temp, dir_separator_str);
4331 strcat (temp, spec_version);
4332 strcat (temp, dir_separator_str);
4333 gcc_exec_prefix = temp;
4336 /* Now we have the specs.
4337 Set the `valid' bits for switches that match anything in any spec. */
4339 validate_all_switches ();
4341 /* Now that we have the switches and the specs, set
4342 the subdirectory based on the options. */
4343 set_multilib_dir ();
4345 /* Warn about any switches that no pass was interested in. */
4347 for (i = 0; i < n_switches; i++)
4348 if (! switches[i].valid)
4349 error ("unrecognized option `-%s'", switches[i].part1);
4351 /* Obey some of the options. */
4353 if (print_search_dirs)
4355 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4356 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4357 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4361 if (print_file_name)
4363 printf ("%s\n", find_file (print_file_name));
4367 if (print_prog_name)
4369 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4370 printf ("%s\n", (newname ? newname : print_prog_name));
4374 if (print_multi_lib)
4376 print_multilib_info ();
4380 if (print_multi_directory)
4382 if (multilib_dir == NULL)
4385 printf ("%s\n", multilib_dir);
4391 if (! strcmp (version_string, compiler_version))
4392 fprintf (stderr, "gcc version %s\n", version_string);
4394 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4395 version_string, compiler_version);
4402 fatal ("No input files");
4404 /* Make a place to record the compiler output file names
4405 that correspond to the input files. */
4407 outfiles = (char **) xmalloc (n_infiles * sizeof (char *));
4408 bzero ((char *) outfiles, n_infiles * sizeof (char *));
4410 /* Record which files were specified explicitly as link input. */
4412 explicit_link_files = xmalloc (n_infiles);
4413 bzero (explicit_link_files, n_infiles);
4415 for (i = 0; i < n_infiles; i++)
4417 register struct compiler *cp = 0;
4418 int this_file_error = 0;
4420 /* Tell do_spec what to substitute for %i. */
4422 input_filename = infiles[i].name;
4423 input_filename_length = strlen (input_filename);
4424 input_file_number = i;
4426 /* Use the same thing in %o, unless cp->spec says otherwise. */
4428 outfiles[i] = input_filename;
4430 /* Figure out which compiler from the file's suffix. */
4432 cp = lookup_compiler (infiles[i].name, input_filename_length,
4433 infiles[i].language);
4437 /* Ok, we found an applicable compiler. Run its spec. */
4438 /* First say how much of input_filename to substitute for %b */
4442 if (cp->spec[0][0] == '#')
4443 error ("%s: %s compiler not installed on this system",
4444 input_filename, &cp->spec[0][1]);
4446 input_basename = input_filename;
4447 for (p = input_filename; *p; p++)
4448 if (*p == '/' || *p == DIR_SEPARATOR)
4449 input_basename = p + 1;
4451 /* Find a suffix starting with the last period,
4452 and set basename_length to exclude that suffix. */
4453 basename_length = strlen (input_basename);
4454 p = input_basename + basename_length;
4455 while (p != input_basename && *p != '.') --p;
4456 if (*p == '.' && p != input_basename)
4458 basename_length = p - input_basename;
4459 input_suffix = p + 1;
4465 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4467 len += strlen (cp->spec[j]);
4469 p = (char *) xmalloc (len + 1);
4472 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
4475 strcpy (p + len, cp->spec[j]);
4476 len += strlen (cp->spec[j]);
4479 value = do_spec (p);
4482 this_file_error = 1;
4485 /* If this file's name does not contain a recognized suffix,
4486 record it as explicit linker input. */
4489 explicit_link_files[i] = 1;
4491 /* Clear the delete-on-failure queue, deleting the files in it
4492 if this compilation failed. */
4494 if (this_file_error)
4496 delete_failure_queue ();
4499 /* If this compilation succeeded, don't delete those files later. */
4500 clear_failure_queue ();
4503 /* Run ld to link all the compiler output files. */
4505 if (error_count == 0)
4507 int tmp = execution_count;
4511 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
4513 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
4514 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
4516 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4518 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4519 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4522 for (i = 0; i < n_switches; i++)
4526 obstack_grow (&collect_obstack, " ", 1);
4529 obstack_grow (&collect_obstack, "-", 1);
4530 obstack_grow (&collect_obstack, switches[i].part1,
4531 strlen (switches[i].part1));
4533 for (args = switches[i].args; args && *args; args++)
4535 obstack_grow (&collect_obstack, " ", 1);
4536 obstack_grow (&collect_obstack, *args, strlen (*args));
4539 obstack_grow (&collect_obstack, "\0", 1);
4540 putenv (obstack_finish (&collect_obstack));
4542 value = do_spec (link_command_spec);
4545 linker_was_run = (tmp != execution_count);
4548 /* Warn if a -B option was specified but the prefix was never used. */
4549 unused_prefix_warnings (&exec_prefixes);
4550 unused_prefix_warnings (&startfile_prefixes);
4552 /* If options said don't run linker,
4553 complain about input files to be given to the linker. */
4555 if (! linker_was_run && error_count == 0)
4556 for (i = 0; i < n_infiles; i++)
4557 if (explicit_link_files[i])
4558 error ("%s: linker input file unused since linking not done",
4561 /* Delete some or all of the temporary files we made. */
4564 delete_failure_queue ();
4565 delete_temp_files ();
4567 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
4572 /* Find the proper compilation spec for the file name NAME,
4573 whose length is LENGTH. LANGUAGE is the specified language,
4574 or 0 if none specified. */
4576 static struct compiler *
4577 lookup_compiler (name, length, language)
4582 struct compiler *cp;
4584 /* Look for the language, if one is spec'd. */
4587 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4591 if (cp->suffix[0] == '@'
4592 && !strcmp (cp->suffix + 1, language))
4596 error ("language %s not recognized", language);
4599 /* Look for a suffix. */
4600 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
4602 if (/* The suffix `-' matches only the file name `-'. */
4603 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
4605 (strlen (cp->suffix) < length
4606 /* See if the suffix matches the end of NAME. */
4608 && (!strcmp (cp->suffix,
4609 name + length - strlen (cp->suffix))
4610 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
4611 && !strcasecmp (cp->suffix,
4612 name + length - strlen (cp->suffix)))))
4614 && !strcmp (cp->suffix,
4615 name + length - strlen (cp->suffix))))
4618 if (cp->spec[0][0] == '@')
4620 struct compiler *new;
4621 /* An alias entry maps a suffix to a language.
4622 Search for the language; pass 0 for NAME and LENGTH
4623 to avoid infinite recursion if language not found.
4624 Construct the new compiler spec. */
4625 language = cp->spec[0] + 1;
4626 new = (struct compiler *) xmalloc (sizeof (struct compiler));
4627 new->suffix = cp->suffix;
4628 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
4629 (char *) new->spec, sizeof new->spec);
4632 /* A non-alias entry: return it. */
4644 register char *value = (char *) malloc (size);
4646 fatal ("virtual memory exhausted");
4651 xrealloc (ptr, size)
4655 register char *value = (char *) realloc (ptr, size);
4657 fatal ("virtual memory exhausted");
4661 /* This function is based on the one in libiberty. */
4664 concat VPROTO((char *first, ...))
4666 register int length;
4667 register char *newstr;
4675 /* First compute the size of the result and get sufficient memory. */
4677 VA_START (args, first);
4679 first = va_arg (args, char *);
4687 length += strlen (arg);
4688 arg = va_arg (args, char *);
4691 newstr = (char *) xmalloc (length + 1);
4694 /* Now copy the individual pieces to the result string. */
4696 VA_START (args, first);
4698 first = va_arg (args, char *);
4707 arg = va_arg (args, char *);
4716 save_string (s, len)
4720 register char *result = xmalloc (len + 1);
4722 bcopy (s, result, len);
4728 pfatal_with_name (name)
4731 fatal ("%s: %s", name, my_strerror (errno));
4735 perror_with_name (name)
4738 error ("%s: %s", name, my_strerror (errno));
4742 pfatal_pexecute (errmsg_fmt, errmsg_arg)
4748 /* Space for trailing '\0' is in %s. */
4749 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
4750 sprintf (msg, errmsg_fmt, errmsg_arg);
4754 fatal ("%s: %s", errmsg_fmt, my_strerror (errno));
4757 /* More 'friendly' abort that prints the line and file.
4758 config.h can #define abort fancy_abort if you like that sort of thing. */
4763 fatal ("Internal gcc abort.");
4768 /* Output an error message and exit */
4771 fatal VPROTO((char *format, ...))
4778 VA_START (ap, format);
4781 format = va_arg (ap, char *);
4784 fprintf (stderr, "%s: ", programname);
4785 vfprintf (stderr, format, ap);
4787 fprintf (stderr, "\n");
4788 delete_temp_files ();
4793 error VPROTO((char *format, ...))
4800 VA_START (ap, format);
4803 format = va_arg (ap, char *);
4806 fprintf (stderr, "%s: ", programname);
4807 vfprintf (stderr, format, ap);
4810 fprintf (stderr, "\n");
4813 #else /* not HAVE_VPRINTF */
4816 fatal (msg, arg1, arg2)
4817 char *msg, *arg1, *arg2;
4819 error (msg, arg1, arg2);
4820 delete_temp_files ();
4825 error (msg, arg1, arg2)
4826 char *msg, *arg1, *arg2;
4828 fprintf (stderr, "%s: ", programname);
4829 fprintf (stderr, msg, arg1, arg2);
4830 fprintf (stderr, "\n");
4833 #endif /* not HAVE_VPRINTF */
4837 validate_all_switches ()
4839 struct compiler *comp;
4842 struct spec_list *spec;
4844 for (comp = compilers; comp->spec[0]; comp++)
4847 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
4851 if (c == '%' && *p == '{')
4852 /* We have a switch spec. */
4853 validate_switches (p + 1);
4857 /* look through the linked list of extra specs read from the specs file */
4858 for (spec = specs; spec ; spec = spec->next)
4862 if (c == '%' && *p == '{')
4863 /* We have a switch spec. */
4864 validate_switches (p + 1);
4867 p = link_command_spec;
4869 if (c == '%' && *p == '{')
4870 /* We have a switch spec. */
4871 validate_switches (p + 1);
4873 /* Now notice switches mentioned in the machine-specific specs. */
4877 if (c == '%' && *p == '{')
4878 /* We have a switch spec. */
4879 validate_switches (p + 1);
4883 if (c == '%' && *p == '{')
4884 /* We have a switch spec. */
4885 validate_switches (p + 1);
4889 if (c == '%' && *p == '{')
4890 /* We have a switch spec. */
4891 validate_switches (p + 1);
4893 p = signed_char_spec;
4895 if (c == '%' && *p == '{')
4896 /* We have a switch spec. */
4897 validate_switches (p + 1);
4901 if (c == '%' && *p == '{')
4902 /* We have a switch spec. */
4903 validate_switches (p + 1);
4907 if (c == '%' && *p == '{')
4908 /* We have a switch spec. */
4909 validate_switches (p + 1);
4913 if (c == '%' && *p == '{')
4914 /* We have a switch spec. */
4915 validate_switches (p + 1);
4919 if (c == '%' && *p == '{')
4920 /* We have a switch spec. */
4921 validate_switches (p + 1);
4925 if (c == '%' && *p == '{')
4926 /* We have a switch spec. */
4927 validate_switches (p + 1);
4931 if (c == '%' && *p == '{')
4932 /* We have a switch spec. */
4933 validate_switches (p + 1);
4938 for (i = 0; i < sizeof (extra_specs) / sizeof (extra_specs[0]); i++)
4940 p = extra_specs[i].spec;
4942 if (c == '%' && *p == '{')
4943 /* We have a switch spec. */
4944 validate_switches (p + 1);
4951 /* Look at the switch-name that comes after START
4952 and mark as valid all supplied switches that match it. */
4955 validate_switches (start)
4958 register char *p = start;
4973 while (*p != ':' && *p != '}') p++;
4977 else if (p[-1] == '*')
4979 /* Mark all matching switches as valid. */
4981 for (i = 0; i < n_switches; i++)
4982 if (!strncmp (switches[i].part1, filter, p - filter))
4983 switches[i].valid = 1;
4987 /* Mark an exact matching switch as valid. */
4988 for (i = 0; i < n_switches; i++)
4990 if (!strncmp (switches[i].part1, filter, p - filter)
4991 && switches[i].part1[p - filter] == 0)
4992 switches[i].valid = 1;
4997 /* Check whether a particular argument was used. The first time we
4998 canonialize the switches to keep only the ones we care about. */
5012 static struct mswitchstr *mswitches;
5013 static int n_mswitches;
5018 struct mswitchstr *matches;
5022 /* Break multilib_matches into the component strings of string and replacement
5024 for (q = multilib_matches; *q != '\0'; q++)
5028 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5030 q = multilib_matches;
5041 matches[i].len = q - matches[i].str;
5043 matches[i].replace = ++q;
5044 while (*q != ';' && *q != '\0')
5050 matches[i].rep_len = q - matches[i].replace;
5058 /* Now build a list of the replacement string for switches that we care
5059 about. Make sure we allocate at least one entry. This prevents
5060 xmalloc from calling fatal, and prevents us from re-executing this
5063 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5064 * (n_switches ? n_switches : 1));
5065 for (i = 0; i < n_switches; i++)
5067 int xlen = strlen (switches[i].part1);
5068 for (j = 0; j < cnt; j++)
5069 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5071 mswitches[n_mswitches].str = matches[j].replace;
5072 mswitches[n_mswitches].len = matches[j].rep_len;
5073 mswitches[n_mswitches].replace = (char *)0;
5074 mswitches[n_mswitches].rep_len = 0;
5081 for (i = 0; i < n_mswitches; i++)
5082 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5089 default_arg (p, len)
5096 for (start = multilib_defaults; *start != '\0'; start = end+1)
5098 while (*start == ' ' || *start == '\t')
5104 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5107 if ((end - start) == len && strncmp (p, start, len) == 0)
5114 /* Work out the subdirectory to use based on the
5115 options. The format of multilib_select is a list of elements.
5116 Each element is a subdirectory name followed by a list of options
5117 followed by a semicolon. gcc will consider each line in turn. If
5118 none of the options beginning with an exclamation point are
5119 present, and all of the other options are present, that
5120 subdirectory will be used. */
5125 char *p = multilib_select;
5127 char *this_path, *this_arg;
5133 /* Ignore newlines. */
5140 /* Get the initial path. */
5148 this_path_len = p - this_path;
5150 /* Check the arguments. */
5165 while (*p != ' ' && *p != ';')
5172 if (*this_arg != '!')
5180 /* If this is a default argument, we can just ignore it.
5181 This is true even if this_arg begins with '!'. Beginning
5182 with '!' does not mean that this argument is necessarily
5183 inappropriate for this library: it merely means that
5184 there is a more specific library which uses this
5185 argument. If this argument is a default, we need not
5186 consider that more specific library. */
5187 if (! default_arg (this_arg, p - this_arg))
5189 ok = used_arg (this_arg, p - this_arg);
5200 if (this_path_len != 1
5201 || this_path[0] != '.')
5203 multilib_dir = xmalloc (this_path_len + 1);
5204 strncpy (multilib_dir, this_path, this_path_len);
5205 multilib_dir[this_path_len] = '\0';
5214 /* Print out the multiple library subdirectory selection
5215 information. This prints out a series of lines. Each line looks
5216 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5217 required. Only the desired options are printed out, the negative
5218 matches. The options are print without a leading dash. There are
5219 no spaces to make it easy to use the information in the shell.
5220 Each subdirectory is printed only once. This assumes the ordering
5221 generated by the genmultilib script. */
5224 print_multilib_info ()
5226 char *p = multilib_select;
5227 char *last_path = 0, *this_path;
5229 int last_path_len = 0;
5233 /* Ignore newlines. */
5240 /* Get the initial path. */
5249 /* If this is a duplicate, skip it. */
5250 skip = (last_path != 0 && p - this_path == last_path_len
5251 && ! strncmp (last_path, this_path, last_path_len));
5253 last_path = this_path;
5254 last_path_len = p - this_path;
5256 /* If this directory requires any default arguments, we can skip
5257 it. We will already have printed a directory identical to
5258 this one which does not require that default argument. */
5276 while (*q != ' ' && *q != ';')
5284 && default_arg (arg, q - arg))
5299 for (p1 = last_path; p1 < p; p1++)
5318 use_arg = *p != '!';
5323 while (*p != ' ' && *p != ';')
5338 /* If there are extra options, print them now */
5339 if (multilib_extra && *multilib_extra)
5341 int print_at = TRUE;
5344 for (q = multilib_extra; *q != '\0'; q++)