1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-97, 1998 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". */
39 #include "gansidecl.h"
43 /* ??? Need to find a GCC header to put these in. */
44 extern int pexecute PROTO ((const char *, char * const *, const char *,
45 const char *, char **, char **, int));
46 extern int pwait PROTO ((int, int *, int));
47 extern char *update_path PROTO((char *, char *));
48 extern void set_std_prefix PROTO((char *, int));
49 /* Flag arguments to pexecute. */
50 #define PEXECUTE_FIRST 1
51 #define PEXECUTE_LAST 2
52 #define PEXECUTE_SEARCH 4
53 #define PEXECUTE_VERBOSE 8
56 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
59 #define WTERMSIG(S) ((S) & 0x7f)
62 #define WIFEXITED(S) (((S) & 0xff) == 0)
65 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
69 #define exit __posix_exit
72 /* Test if something is a normal file. */
74 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
77 /* Test if something is a directory. */
79 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
82 /* By default there is no special suffix for executables. */
83 #ifdef EXECUTABLE_SUFFIX
84 #define HAVE_EXECUTABLE_SUFFIX
86 #define EXECUTABLE_SUFFIX ""
89 /* By default, the suffix for object files is ".o". */
91 #define HAVE_OBJECT_SUFFIX
93 #define OBJECT_SUFFIX ".o"
96 /* By default, colon separates directories in a path. */
97 #ifndef PATH_SEPARATOR
98 #define PATH_SEPARATOR ':'
101 #ifndef DIR_SEPARATOR
102 #define DIR_SEPARATOR '/'
105 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
107 #define obstack_chunk_alloc xmalloc
108 #define obstack_chunk_free free
110 #ifndef GET_ENV_PATH_LIST
111 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
114 extern char *my_strerror PROTO((int));
117 #define kill(p,s) raise(s)
120 /* If a stage of compilation returns an exit status >= 1,
121 compilation of that file ceases. */
123 #define MIN_FATAL_STATUS 1
125 /* Flag saying to print the directories gcc will search through looking for
126 programs, libraries, etc. */
128 static int print_search_dirs;
130 /* Flag saying to print the full filename of this file
131 as found through our usual search mechanism. */
133 static char *print_file_name = NULL;
135 /* As print_file_name, but search for executable file. */
137 static char *print_prog_name = NULL;
139 /* Flag saying to print the relative path we'd use to
140 find libgcc.a given the current compiler flags. */
142 static int print_multi_directory;
144 /* Flag saying to print the list of subdirectories and
145 compiler flags used to select them in a standard form. */
147 static int print_multi_lib;
149 /* Flag saying to print the command line options understood by gcc and its
152 static int print_help_list;
154 /* Flag indicating whether we should print the command and arguments */
156 static int verbose_flag;
158 /* Nonzero means write "temp" files in source directory
159 and use the source file's name in them, and don't delete them. */
161 static int save_temps_flag;
163 /* The compiler version. */
165 static char *compiler_version;
167 /* The target version specified with -V */
169 static char *spec_version = DEFAULT_TARGET_VERSION;
171 /* The target machine specified with -b. */
173 static char *spec_machine = DEFAULT_TARGET_MACHINE;
175 /* Nonzero if cross-compiling.
176 When -b is used, the value comes from the `specs' file. */
179 static char *cross_compile = "1";
181 static char *cross_compile = "0";
184 /* The number of errors that have occurred; the link phase will not be
185 run if this is non-zero. */
186 static int error_count = 0;
188 /* This is the obstack which we use to allocate many strings. */
190 static struct obstack obstack;
192 /* This is the obstack to build an environment variable to pass to
193 collect2 that describes all of the relevant switches of what to
194 pass the compiler in building the list of pointers to constructors
197 static struct obstack collect_obstack;
199 extern char *version_string;
201 /* Forward declaration for prototypes. */
204 static void init_spec PROTO((void));
205 static void read_specs PROTO((char *, int));
206 static void set_spec PROTO((char *, char *));
207 static struct compiler *lookup_compiler PROTO((char *, size_t, char *));
208 static char *build_search_list PROTO((struct path_prefix *, char *, int));
209 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
210 static char *find_a_file PROTO((struct path_prefix *, char *, int));
211 static void add_prefix PROTO((struct path_prefix *, char *, char *,
213 static char *skip_whitespace PROTO((char *));
214 static void record_temp_file PROTO((char *, int, int));
215 static void delete_if_ordinary PROTO((char *));
216 static void delete_temp_files PROTO((void));
217 static void delete_failure_queue PROTO((void));
218 static void clear_failure_queue PROTO((void));
219 static int check_live_switch PROTO((int, int));
220 static char *handle_braces PROTO((char *));
221 static char *save_string PROTO((char *, int));
222 static char *concat PVPROTO((char *, ...));
223 extern int do_spec PROTO((char *));
224 static int do_spec_1 PROTO((char *, int, char *));
225 static char *find_file PROTO((char *));
226 static int is_directory PROTO((char *, char *, int));
227 static void validate_switches PROTO((char *));
228 static void validate_all_switches PROTO((void));
229 static void give_switch PROTO((int, int, int));
230 static int used_arg PROTO((char *, int));
231 static int default_arg PROTO((char *, int));
232 static void set_multilib_dir PROTO((void));
233 static void print_multilib_info PROTO((void));
234 static void pfatal_with_name PROTO((char *)) ATTRIBUTE_NORETURN;
235 static void perror_with_name PROTO((char *));
236 static void pfatal_pexecute PROTO((char *, char *)) ATTRIBUTE_NORETURN;
237 static void fatal PVPROTO((char *, ...)) ATTRIBUTE_NORETURN;
238 static void error PVPROTO((char *, ...));
239 static void display_help PROTO((void));
241 void fancy_abort PROTO((void)) ATTRIBUTE_NORETURN;
245 #ifdef LANG_SPECIFIC_DRIVER
246 /* Called before processing to change/add/remove arguments. */
247 extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
249 /* Called before linking. Returns 0 on success and -1 on failure. */
250 extern int lang_specific_pre_link ();
252 /* Number of extra output files that lang_specific_pre_link may generate. */
253 extern int lang_specific_extra_outfiles;
256 /* Specs are strings containing lines, each of which (if not blank)
257 is made up of a program name, and arguments separated by spaces.
258 The program name must be exact and start from root, since no path
259 is searched and it is unreliable to depend on the current working directory.
260 Redirection of input or output is not supported; the subprograms must
261 accept filenames saying what files to read and write.
263 In addition, the specs can contain %-sequences to substitute variable text
264 or for conditional text. Here is a table of all defined %-sequences.
265 Note that spaces are not generated automatically around the results of
266 expanding these sequences; therefore, you can concatenate them together
267 or with constant text in a single argument.
269 %% substitute one % into the program name or argument.
270 %i substitute the name of the input file being processed.
271 %b substitute the basename of the input file being processed.
272 This is the substring up to (and not including) the last period
273 and not including the directory.
275 substitute a file name that has suffix SUFFIX and is chosen
276 once per compilation, and mark the argument a la %d. To reduce
277 exposure to denial-of-service attacks, the file name is now
278 chosen in a way that is hard to predict even when previously
279 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
280 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
281 the regexp "[.A-Za-z]*" or the special string "%O", which is
282 treated exactly as if %O had been pre-processed. Previously, %g
283 was simply substituted with a file name chosen once per compilation,
284 without regard to any appended suffix (which was therefore treated
285 just like ordinary text), making such attacks more likely to succeed.
287 like %g, but generates a new temporary file name even if %uSUFFIX
290 substitutes the last file name generated with %uSUFFIX, generating a
291 new one if there is no such last file name. In the absence of any
292 %uSUFFIX, this is just like %gSUFFIX, except they don't share
293 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
294 would involve the generation of two distinct file names, one
295 for each `%g.s' and another for each `%U.s'. Previously, %U was
296 simply substituted with a file name chosen for the previous %u,
297 without regard to any appended suffix.
298 %d marks the argument containing or following the %d as a
299 temporary file name, so that that file will be deleted if CC exits
300 successfully. Unlike %g, this contributes no text to the argument.
301 %w marks the argument containing or following the %w as the
302 "output file" of this compilation. This puts the argument
303 into the sequence of arguments that %o will substitute later.
305 like %{...} but mark last argument supplied within
306 as a file to be deleted on failure.
307 %o substitutes the names of all the output files, with spaces
308 automatically placed around them. You should write spaces
309 around the %o as well or the results are undefined.
310 %o is for use in the specs for running the linker.
311 Input files whose names have no recognized suffix are not compiled
312 at all, but they are included among the output files, so they will
314 %O substitutes the suffix for object files. Note that this is
315 handled specially when it immediately follows %g, %u, or %U,
316 because of the need for those to form complete file names. The
317 handling is such that %O is treated exactly as if it had already
318 been substituted, except that %g, %u, and %U do not currently
319 support additional SUFFIX characters following %O as they would
320 following, for example, `.o'.
321 %p substitutes the standard macro predefinitions for the
322 current target machine. Use this when running cpp.
323 %P like %p, but puts `__' before and after the name of each macro.
324 (Except macros that already have __.)
326 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
327 %s current argument is the name of a library or startup file of some sort.
328 Search for that file in a standard list of directories
329 and substitute the full name found.
330 %eSTR Print STR as an error message. STR is terminated by a newline.
331 Use this when inconsistent options are detected.
332 %x{OPTION} Accumulate an option for %X.
333 %X Output the accumulated linker options specified by compilations.
334 %Y Output the accumulated assembler options specified by compilations.
335 %Z Output the accumulated preprocessor options specified by compilations.
336 %v1 Substitute the major version number of GCC.
337 (For version 2.5.n, this is 2.)
338 %v2 Substitute the minor version number of GCC.
339 (For version 2.5.n, this is 5.)
340 %a process ASM_SPEC as a spec.
341 This allows config.h to specify part of the spec for running as.
342 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
343 used here. This can be used to run a post-processor after the
344 assembler has done its job.
345 %D Dump out a -L option for each directory in startfile_prefixes.
346 If multilib_dir is set, extra entries are generated with it affixed.
347 %l process LINK_SPEC as a spec.
348 %L process LIB_SPEC as a spec.
349 %G process LIBGCC_SPEC as a spec.
350 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
351 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
352 %c process SIGNED_CHAR_SPEC as a spec.
353 %C process CPP_SPEC as a spec. A capital C is actually used here.
354 %1 process CC1_SPEC as a spec.
355 %2 process CC1PLUS_SPEC as a spec.
356 %| output "-" if the input for the current command is coming from a pipe.
357 %* substitute the variable part of a matched option. (See below.)
358 Note that each comma in the substituted string is replaced by
360 %{S} substitutes the -S switch, if that switch was given to CC.
361 If that switch was not specified, this substitutes nothing.
362 Here S is a metasyntactic variable.
363 %{S*} substitutes all the switches specified to CC whose names start
364 with -S. This is used for -o, -D, -I, etc; switches that take
365 arguments. CC considers `-o foo' as being one switch whose
366 name starts with `o'. %{o*} would substitute this text,
367 including the space; thus, two arguments would be generated.
368 %{^S*} likewise, but don't put a blank between a switch and any args.
369 %{S*:X} substitutes X if one or more switches whose names start with -S are
370 specified to CC. Note that the tail part of the -S option
371 (i.e. the part matched by the `*') will be substituted for each
372 occurrence of %* within X.
373 %{S:X} substitutes X, but only if the -S switch was given to CC.
374 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
375 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
376 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
377 %{.S:X} substitutes X, but only if processing a file with suffix S.
378 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
379 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
380 combined with ! and . as above binding stronger than the OR.
381 %(Spec) processes a specification defined in a specs file as *Spec:
382 %[Spec] as above, but put __ around -D arguments
384 The conditional text X in a %{S:X} or %{!S:X} construct may contain
385 other nested % constructs or spaces, or even newlines. They are
386 processed as usual, as described above.
388 The -O, -f, -m, and -W switches are handled specifically in these
389 constructs. If another value of -O or the negated form of a -f, -m, or
390 -W switch is found later in the command line, the earlier switch
391 value is ignored, except with {S*} where S is just one letter; this
392 passes all matching options.
394 The character | at the beginning of the predicate text is used to indicate
395 that a command should be piped to the following command, but only if -pipe
398 Note that it is built into CC which switches take arguments and which
399 do not. You might think it would be useful to generalize this to
400 allow each compiler's spec to say which switches take arguments. But
401 this cannot be done in a consistent fashion. CC cannot even decide
402 which input files have been specified without knowing which switches
403 take arguments, and it must know which input files to compile in order
404 to tell which compilers to run.
406 CC also knows implicitly that arguments starting in `-l' are to be
407 treated as compiler output files, and passed to the linker in their
408 proper position among the other output files. */
410 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
412 /* config.h can define ASM_SPEC to provide extra args to the assembler
413 or extra switch-translations. */
418 /* config.h can define ASM_FINAL_SPEC to run a post processor after
419 the assembler has run. */
420 #ifndef ASM_FINAL_SPEC
421 #define ASM_FINAL_SPEC ""
424 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
425 or extra switch-translations. */
430 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
431 or extra switch-translations. */
436 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
437 or extra switch-translations. */
439 #define CC1PLUS_SPEC ""
442 /* config.h can define LINK_SPEC to provide extra args to the linker
443 or extra switch-translations. */
448 /* config.h can define LIB_SPEC to override the default libraries. */
450 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
453 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
456 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
457 /* Have gcc do the search for libgcc.a. */
458 #define LIBGCC_SPEC "libgcc.a%s"
460 #define LIBGCC_SPEC "-lgcc"
464 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
465 #ifndef STARTFILE_SPEC
466 #define STARTFILE_SPEC \
467 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
470 /* config.h can define SWITCHES_NEED_SPACES to control which options
471 require spaces between the option and the argument. */
472 #ifndef SWITCHES_NEED_SPACES
473 #define SWITCHES_NEED_SPACES ""
476 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
478 #define ENDFILE_SPEC ""
481 /* This spec is used for telling cpp whether char is signed or not. */
482 #ifndef SIGNED_CHAR_SPEC
483 /* Use #if rather than ?:
484 because MIPS C compiler rejects like ?: in initializers. */
485 #if DEFAULT_SIGNED_CHAR
486 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
488 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
493 #define LINKER_NAME "collect2"
496 static char *cpp_spec = CPP_SPEC;
497 static char *cpp_predefines = CPP_PREDEFINES;
498 static char *cc1_spec = CC1_SPEC;
499 static char *cc1plus_spec = CC1PLUS_SPEC;
500 static char *signed_char_spec = SIGNED_CHAR_SPEC;
501 static char *asm_spec = ASM_SPEC;
502 static char *asm_final_spec = ASM_FINAL_SPEC;
503 static char *link_spec = LINK_SPEC;
504 static char *lib_spec = LIB_SPEC;
505 static char *libgcc_spec = LIBGCC_SPEC;
506 static char *endfile_spec = ENDFILE_SPEC;
507 static char *startfile_spec = STARTFILE_SPEC;
508 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
509 static char *linker_name_spec = LINKER_NAME;
511 /* Some compilers have limits on line lengths, and the multilib_select
512 and/or multilib_matches strings can be very long, so we build them at
514 static struct obstack multilib_obstack;
515 static char *multilib_select;
516 static char *multilib_matches;
517 static char *multilib_defaults;
518 #include "multilib.h"
520 /* Check whether a particular argument is a default argument. */
522 #ifndef MULTILIB_DEFAULTS
523 #define MULTILIB_DEFAULTS { "" }
526 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
529 struct user_specs *next;
533 static struct user_specs *user_specs_head, *user_specs_tail;
535 /* This defines which switch letters take arguments. */
537 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
538 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
539 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
540 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
541 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
542 || (CHAR) == 'B' || (CHAR) == 'b')
544 #ifndef SWITCH_TAKES_ARG
545 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
548 /* This defines which multi-letter switches take arguments. */
550 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
551 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
552 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
553 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
554 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
555 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
556 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
558 #ifndef WORD_SWITCH_TAKES_ARG
559 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
563 #ifdef HAVE_EXECUTABLE_SUFFIX
564 /* This defines which switches stop a full compilation. */
565 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
566 ((CHAR) == 'c' || (CHAR) == 'S')
568 #ifndef SWITCH_CURTAILS_COMPILATION
569 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
570 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
574 /* Record the mapping from file suffixes for compilation specs. */
578 char *suffix; /* Use this compiler for input files
579 whose names end in this suffix. */
581 char *spec[4]; /* To use this compiler, concatenate these
582 specs and pass to do_spec. */
585 /* Pointer to a vector of `struct compiler' that gives the spec for
586 compiling a file, based on its suffix.
587 A file that does not end in any of these suffixes will be passed
588 unchanged to the loader and nothing else will be done to it.
590 An entry containing two 0s is used to terminate the vector.
592 If multiple entries match a file, the last matching one is used. */
594 static struct compiler *compilers;
596 /* Number of entries in `compilers', not counting the null terminator. */
598 static int n_compilers;
600 /* The default list of file name suffixes and their compilation specs. */
602 static struct compiler default_compilers[] =
604 /* Add lists of suffixes of known languages here. If those languages
605 were not present when we built the driver, we will hit these copies
606 and be given a more meaningful error than "file not used since
607 linking is not done". */
608 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
609 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
610 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
611 {".fpp", {"#Fortran"}},
612 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
613 /* Next come the entries for C. */
618 "%{E|M|MM:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
619 %{C:%{!E:%eGNU C does not support -C without using -E}}\
620 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
621 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
622 %{ansi:-trigraphs -D__STRICT_ANSI__}\
623 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
624 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
625 %{traditional} %{ftraditional:-traditional}\
626 %{traditional-cpp:-traditional}\
627 %{fleading-underscore} %{fno-leading-underscore}\
628 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
629 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
630 %{!E:%{!M:%{!MM:cc1 %i %1 \
631 -lang-c%{ansi:89} %{nostdinc*} %{A*} %{I*} %I\
632 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
633 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
634 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
635 %{ansi:-trigraphs -D__STRICT_ANSI__}\
636 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
637 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
638 %{H} %C %{D*} %{U*} %{i*} %Z\
639 %{ftraditional:-traditional}\
640 %{traditional-cpp:-traditional}\
641 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
644 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
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 }}}}"
651 #else /* ! USE_CPPLIB */
652 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
653 %{C:%{!E:%eGNU C does not support -C without using -E}}\
654 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
655 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
656 %{ansi:-trigraphs -D__STRICT_ANSI__}\
657 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
658 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
659 %{traditional} %{ftraditional:-traditional}\
660 %{traditional-cpp:-traditional}\
661 %{fleading-underscore} %{fno-leading-underscore}\
662 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
663 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
664 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
665 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
666 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
667 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
670 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
671 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
673 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
674 %{!pipe:%g.s} %A\n }}}}"
676 #endif /* ! USE_CPPLIB */
678 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
679 %{C:%{!E:%eGNU C does not support -C without using -E}}\
680 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
681 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
682 %{ansi:-trigraphs -D__STRICT_ANSI__}\
683 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
684 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
685 %{traditional} %{ftraditional:-traditional}\
686 %{traditional-cpp:-traditional}\
687 %{fleading-underscore} %{fno-leading-underscore}\
688 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
690 %{!E:%e-E required when input is from standard input}"}},
691 {".m", {"@objective-c"}},
693 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
694 %{C:%{!E:%eGNU C does not support -C without using -E}}\
695 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
696 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
697 %{ansi:-trigraphs -D__STRICT_ANSI__}\
698 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
699 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
700 %{traditional} %{ftraditional:-traditional}\
701 %{traditional-cpp:-traditional}\
702 %{fleading-underscore} %{fno-leading-underscore}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
704 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
705 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
706 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
707 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
708 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
709 -lang-objc %{gen-decls} \
711 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
712 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
714 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
715 %{!pipe:%g.s} %A\n }}}}"}},
716 {".h", {"@c-header"}},
718 {"%{!E:%eCompilation of header file requested} \
719 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
720 %{C:%{!E:%eGNU C does not support -C without using -E}}\
721 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
722 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
723 %{ansi:-trigraphs -D__STRICT_ANSI__}\
724 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
725 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
726 %{traditional} %{ftraditional:-traditional}\
727 %{traditional-cpp:-traditional}\
728 %{fleading-underscore} %{fno-leading-underscore}\
729 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
731 {".i", {"@cpp-output"}},
733 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
734 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
735 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
737 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
738 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
740 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
741 %{!pipe:%g.s} %A\n }}}}"}},
742 {".s", {"@assembler"}},
744 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
745 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
747 {".S", {"@assembler-with-cpp"}},
748 {"@assembler-with-cpp",
749 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
750 %{C:%{!E:%eGNU C does not support -C without using -E}}\
751 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
752 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
753 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
754 %{traditional} %{ftraditional:-traditional}\
755 %{traditional-cpp:-traditional}\
756 %{fleading-underscore} %{fno-leading-underscore}\
757 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
758 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
759 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
760 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
761 %{!pipe:%g.s} %A\n }}}}"}},
763 /* Mark end of table */
767 /* Number of elements in default_compilers, not counting the terminator. */
769 static int n_default_compilers
770 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
772 /* Here is the spec for running the linker, after compiling all files. */
774 /* -u* was put back because both BSD and SysV seem to support it. */
775 /* %{static:} simply prevents an error message if the target machine
776 doesn't handle -static. */
777 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
778 scripts which exist in user specified directories, or in standard
780 #ifdef LINK_COMMAND_SPEC
781 /* Provide option to override link_command_spec from machine specific
782 configuration files. */
783 static char *link_command_spec =
786 #ifdef LINK_LIBGCC_SPECIAL
787 /* Don't generate -L options. */
788 static char *link_command_spec = "\
790 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
791 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
792 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
794 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
795 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
800 static char *link_command_spec = "\
802 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
803 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
804 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
805 %{static:} %{L*} %D %o\
806 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
807 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
813 /* A vector of options to give to the linker.
814 These options are accumulated by %x,
815 and substituted into the linker command with %X. */
816 static int n_linker_options;
817 static char **linker_options;
819 /* A vector of options to give to the assembler.
820 These options are accumulated by -Wa,
821 and substituted into the assembler command with %Y. */
822 static int n_assembler_options;
823 static char **assembler_options;
825 /* A vector of options to give to the preprocessor.
826 These options are accumulated by -Wp,
827 and substituted into the preprocessor command with %Z. */
828 static int n_preprocessor_options;
829 static char **preprocessor_options;
831 /* Define how to map long options into short ones. */
833 /* This structure describes one mapping. */
836 /* The long option's name. */
838 /* The equivalent short option. */
840 /* Argument info. A string of flag chars; NULL equals no options.
841 a => argument required.
842 o => argument optional.
843 j => join argument to equivalent, making one word.
844 * => require other text after NAME as an argument. */
848 /* This is the table of mappings. Mappings are tried sequentially
849 for each option encountered; the first one that matches, wins. */
851 struct option_map option_map[] =
853 {"--all-warnings", "-Wall", 0},
854 {"--ansi", "-ansi", 0},
855 {"--assemble", "-S", 0},
856 {"--assert", "-A", "a"},
857 {"--classpath", "-fclasspath=", "aj"},
858 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
859 {"--comments", "-C", 0},
860 {"--compile", "-c", 0},
861 {"--debug", "-g", "oj"},
862 {"--define-macro", "-D", "aj"},
863 {"--dependencies", "-M", 0},
864 {"--dump", "-d", "a"},
865 {"--dumpbase", "-dumpbase", "a"},
866 {"--entry", "-e", 0},
867 {"--extra-warnings", "-W", 0},
868 {"--for-assembler", "-Wa", "a"},
869 {"--for-linker", "-Xlinker", "a"},
870 {"--force-link", "-u", "a"},
871 {"--imacros", "-imacros", "a"},
872 {"--include", "-include", "a"},
873 {"--include-barrier", "-I-", 0},
874 {"--include-directory", "-I", "aj"},
875 {"--include-directory-after", "-idirafter", "a"},
876 {"--include-prefix", "-iprefix", "a"},
877 {"--include-with-prefix", "-iwithprefix", "a"},
878 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
879 {"--include-with-prefix-after", "-iwithprefix", "a"},
880 {"--language", "-x", "a"},
881 {"--library-directory", "-L", "a"},
882 {"--machine", "-m", "aj"},
883 {"--machine-", "-m", "*j"},
884 {"--no-line-commands", "-P", 0},
885 {"--no-precompiled-includes", "-noprecomp", 0},
886 {"--no-standard-includes", "-nostdinc", 0},
887 {"--no-standard-libraries", "-nostdlib", 0},
888 {"--no-warnings", "-w", 0},
889 {"--optimize", "-O", "oj"},
890 {"--output", "-o", "a"},
891 {"--pedantic", "-pedantic", 0},
892 {"--pedantic-errors", "-pedantic-errors", 0},
893 {"--pipe", "-pipe", 0},
894 {"--prefix", "-B", "a"},
895 {"--preprocess", "-E", 0},
896 {"--print-search-dirs", "-print-search-dirs", 0},
897 {"--print-file-name", "-print-file-name=", "aj"},
898 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
899 {"--print-missing-file-dependencies", "-MG", 0},
900 {"--print-multi-lib", "-print-multi-lib", 0},
901 {"--print-multi-directory", "-print-multi-directory", 0},
902 {"--print-prog-name", "-print-prog-name=", "aj"},
903 {"--profile", "-p", 0},
904 {"--profile-blocks", "-a", 0},
905 {"--quiet", "-q", 0},
906 {"--save-temps", "-save-temps", 0},
907 {"--shared", "-shared", 0},
908 {"--silent", "-q", 0},
909 {"--specs", "-specs=", "aj"},
910 {"--static", "-static", 0},
911 {"--symbolic", "-symbolic", 0},
912 {"--target", "-b", "a"},
913 {"--trace-includes", "-H", 0},
914 {"--traditional", "-traditional", 0},
915 {"--traditional-cpp", "-traditional-cpp", 0},
916 {"--trigraphs", "-trigraphs", 0},
917 {"--undefine-macro", "-U", "aj"},
918 {"--use-version", "-V", "a"},
919 {"--user-dependencies", "-MM", 0},
920 {"--verbose", "-v", 0},
921 {"--version", "-dumpversion", 0},
922 {"--warn-", "-W", "*j"},
923 {"--write-dependencies", "-MD", 0},
924 {"--write-user-dependencies", "-MMD", 0},
928 /* Translate the options described by *ARGCP and *ARGVP.
929 Make a new vector and store it back in *ARGVP,
930 and store its length in *ARGVC. */
933 translate_options (argcp, argvp)
939 char **argv = *argvp;
940 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
944 newv[newindex++] = argv[i++];
948 /* Translate -- options. */
949 if (argv[i][0] == '-' && argv[i][1] == '-')
952 /* Find a mapping that applies to this option. */
953 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
955 size_t optlen = strlen (option_map[j].name);
956 size_t arglen = strlen (argv[i]);
957 size_t complen = arglen > optlen ? optlen : arglen;
958 char *arginfo = option_map[j].arg_info;
963 if (!strncmp (argv[i], option_map[j].name, complen))
971 k < sizeof (option_map) / sizeof (option_map[0]);
973 if (strlen (option_map[k].name) >= arglen
974 && !strncmp (argv[i], option_map[k].name, arglen))
976 error ("Ambiguous abbreviation %s", argv[i]);
980 if (k != sizeof (option_map) / sizeof (option_map[0]))
986 /* If the option has an argument, accept that. */
987 if (argv[i][optlen] == '=')
988 arg = argv[i] + optlen + 1;
990 /* If this mapping requires extra text at end of name,
991 accept that as "argument". */
992 else if (index (arginfo, '*') != 0)
993 arg = argv[i] + optlen;
995 /* Otherwise, extra text at end means mismatch.
996 Try other mappings. */
1001 else if (index (arginfo, '*') != 0)
1003 error ("Incomplete `%s' option", option_map[j].name);
1007 /* Handle arguments. */
1008 if (index (arginfo, 'a') != 0)
1014 error ("Missing argument to `%s' option",
1015 option_map[j].name);
1022 else if (index (arginfo, '*') != 0)
1024 else if (index (arginfo, 'o') == 0)
1027 error ("Extraneous argument to `%s' option",
1028 option_map[j].name);
1032 /* Store the translation as one argv elt or as two. */
1033 if (arg != 0 && index (arginfo, 'j') != 0)
1034 newv[newindex++] = concat (option_map[j].equivalent, arg,
1038 newv[newindex++] = option_map[j].equivalent;
1039 newv[newindex++] = arg;
1042 newv[newindex++] = option_map[j].equivalent;
1050 /* Handle old-fashioned options--just copy them through,
1051 with their arguments. */
1052 else if (argv[i][0] == '-')
1054 char *p = argv[i] + 1;
1058 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1059 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1060 else if (WORD_SWITCH_TAKES_ARG (p))
1061 nskip += WORD_SWITCH_TAKES_ARG (p);
1062 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1065 else if (! strcmp (p, "Xlinker"))
1068 /* Watch out for an option at the end of the command line that
1069 is missing arguments, and avoid skipping past the end of the
1071 if (nskip + i > argc)
1076 newv[newindex++] = argv[i++];
1081 /* Ordinary operands, or +e options. */
1082 newv[newindex++] = argv[i++];
1095 #ifdef HAVE_STRERROR
1101 static char buffer[30];
1103 return "cannot access";
1105 if (e > 0 && e < sys_nerr)
1106 return sys_errlist[e];
1108 sprintf (buffer, "Unknown error %d", e);
1119 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1120 be considered whitespace. */
1121 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1123 else if (*p == '\n' || *p == ' ' || *p == '\t')
1127 while (*p != '\n') p++;
1137 /* Structure to keep track of the specs that have been defined so far.
1138 These are accessed using %(specname) or %[specname] in a compiler
1143 /* The following 2 fields must be first */
1144 /* to allow EXTRA_SPECS to be initialized */
1145 char *name; /* name of the spec. */
1146 char *ptr; /* available ptr if no static pointer */
1148 /* The following fields are not initialized */
1149 /* by EXTRA_SPECS */
1150 char **ptr_spec; /* pointer to the spec itself. */
1151 struct spec_list *next; /* Next spec in linked list. */
1152 int name_len; /* length of the name */
1153 int alloc_p; /* whether string was allocated */
1156 #define INIT_STATIC_SPEC(NAME,PTR) \
1157 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1159 /* List of statically defined specs */
1160 static struct spec_list static_specs[] = {
1161 INIT_STATIC_SPEC ("asm", &asm_spec),
1162 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1163 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1164 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1165 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1166 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1167 INIT_STATIC_SPEC ("link", &link_spec),
1168 INIT_STATIC_SPEC ("lib", &lib_spec),
1169 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1170 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1171 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1172 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1173 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1174 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1175 INIT_STATIC_SPEC ("version", &compiler_version),
1176 INIT_STATIC_SPEC ("multilib", &multilib_select),
1177 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1178 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1179 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1180 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1183 #ifdef EXTRA_SPECS /* additional specs needed */
1184 /* Structure to keep track of just the first two args of a spec_list.
1185 That is all that the EXTRA_SPECS macro gives us. */
1192 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1193 static struct spec_list * extra_specs = (struct spec_list *)0;
1196 /* List of dynamically allocates specs that have been defined so far. */
1198 static struct spec_list *specs = (struct spec_list *)0;
1201 /* Initialize the specs lookup routines. */
1206 struct spec_list *next = (struct spec_list *)0;
1207 struct spec_list *sl = (struct spec_list *)0;
1211 return; /* already initialized */
1214 fprintf (stderr, "Using builtin specs.\n");
1217 extra_specs = (struct spec_list *)
1218 xmalloc (sizeof(struct spec_list) *
1219 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1220 bzero ((PTR) extra_specs, sizeof(struct spec_list) *
1221 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1223 for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--)
1225 sl = &extra_specs[i];
1226 sl->name = extra_specs_1[i].name;
1227 sl->ptr = extra_specs_1[i].ptr;
1229 sl->name_len = strlen (sl->name);
1230 sl->ptr_spec = &sl->ptr;
1235 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1237 sl = &static_specs[i];
1246 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1247 removed; If the spec starts with a + then SPEC is added to the end of the
1251 set_spec (name, spec)
1255 struct spec_list *sl;
1257 int name_len = strlen (name);
1260 /* If this is the first call, initialize the statically allocated specs */
1263 struct spec_list *next = (struct spec_list *)0;
1264 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1267 sl = &static_specs[i];
1274 /* See if the spec already exists */
1275 for (sl = specs; sl; sl = sl->next)
1276 if (name_len == sl->name_len && !strcmp (sl->name, name))
1281 /* Not found - make it */
1282 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1283 sl->name = save_string (name, strlen (name));
1284 sl->name_len = name_len;
1285 sl->ptr_spec = &sl->ptr;
1287 *(sl->ptr_spec) = "";
1292 old_spec = *(sl->ptr_spec);
1293 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1294 ? concat (old_spec, spec + 1, NULL_PTR)
1295 : save_string (spec, strlen (spec)));
1299 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1302 /* Free the old spec */
1303 if (old_spec && sl->alloc_p)
1309 /* Accumulate a command (program name and args), and run it. */
1311 /* Vector of pointers to arguments in the current line of specifications. */
1313 static char **argbuf;
1315 /* Number of elements allocated in argbuf. */
1317 static int argbuf_length;
1319 /* Number of elements in argbuf currently in use (containing args). */
1321 static int argbuf_index;
1323 /* We want this on by default all the time now. */
1324 #define MKTEMP_EACH_FILE
1326 #ifdef MKTEMP_EACH_FILE
1328 extern char *make_temp_file PROTO((char *));
1330 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1333 static struct temp_name {
1334 char *suffix; /* suffix associated with the code. */
1335 int length; /* strlen (suffix). */
1336 int unique; /* Indicates whether %g or %u/%U was used. */
1337 char *filename; /* associated filename. */
1338 int filename_length; /* strlen (filename). */
1339 struct temp_name *next;
1342 extern char *choose_temp_base PROTO((void));
1346 /* Number of commands executed so far. */
1348 static int execution_count;
1350 /* Number of commands that exited with a signal. */
1352 static int signal_count;
1354 /* Name with which this program was invoked. */
1356 static char *programname;
1358 /* Structures to keep track of prefixes to try when looking for files. */
1362 char *prefix; /* String to prepend to the path. */
1363 struct prefix_list *next; /* Next in linked list. */
1364 int require_machine_suffix; /* Don't use without machine_suffix. */
1365 /* 2 means try both machine_suffix and just_machine_suffix. */
1366 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1371 struct prefix_list *plist; /* List of prefixes to try */
1372 int max_len; /* Max length of a prefix in PLIST */
1373 char *name; /* Name of this list (used in config stuff) */
1376 /* List of prefixes to try when looking for executables. */
1378 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1380 /* List of prefixes to try when looking for startup (crt0) files. */
1382 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1384 /* List of prefixes to try when looking for include files. */
1386 static struct path_prefix include_prefixes = { 0, 0, "include" };
1388 /* Suffix to attach to directories searched for commands.
1389 This looks like `MACHINE/VERSION/'. */
1391 static char *machine_suffix = 0;
1393 /* Suffix to attach to directories searched for commands.
1394 This is just `MACHINE/'. */
1396 static char *just_machine_suffix = 0;
1398 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1400 static char *gcc_exec_prefix;
1402 /* Default prefixes to attach to command names. */
1404 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1405 #undef MD_EXEC_PREFIX
1406 #undef MD_STARTFILE_PREFIX
1407 #undef MD_STARTFILE_PREFIX_1
1410 #ifndef STANDARD_EXEC_PREFIX
1411 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1412 #endif /* !defined STANDARD_EXEC_PREFIX */
1414 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1415 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1416 #ifdef MD_EXEC_PREFIX
1417 static char *md_exec_prefix = MD_EXEC_PREFIX;
1420 #ifndef STANDARD_STARTFILE_PREFIX
1421 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1422 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1424 #ifdef MD_STARTFILE_PREFIX
1425 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1427 #ifdef MD_STARTFILE_PREFIX_1
1428 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1430 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1431 static char *standard_startfile_prefix_1 = "/lib/";
1432 static char *standard_startfile_prefix_2 = "/usr/lib/";
1434 #ifndef TOOLDIR_BASE_PREFIX
1435 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1437 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1438 static char *tooldir_prefix;
1440 /* Subdirectory to use for locating libraries. Set by
1441 set_multilib_dir based on the compilation options. */
1443 static char *multilib_dir;
1445 /* Clear out the vector of arguments (after a command is executed). */
1453 /* Add one argument to the vector at the end.
1454 This is done when a space is seen or at the end of the line.
1455 If DELETE_ALWAYS is nonzero, the arg is a filename
1456 and the file should be deleted eventually.
1457 If DELETE_FAILURE is nonzero, the arg is a filename
1458 and the file should be deleted if this compilation fails. */
1461 store_arg (arg, delete_always, delete_failure)
1463 int delete_always, delete_failure;
1465 if (argbuf_index + 1 == argbuf_length)
1467 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1469 argbuf[argbuf_index++] = arg;
1470 argbuf[argbuf_index] = 0;
1472 if (delete_always || delete_failure)
1473 record_temp_file (arg, delete_always, delete_failure);
1476 /* Read compilation specs from a file named FILENAME,
1477 replacing the default ones.
1479 A suffix which starts with `*' is a definition for
1480 one of the machine-specific sub-specs. The "suffix" should be
1481 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1482 The corresponding spec is stored in asm_spec, etc.,
1483 rather than in the `compilers' vector.
1485 Anything invalid in the file is a fatal error. */
1488 read_specs (filename, main_p)
1494 struct stat statbuf;
1499 fprintf (stderr, "Reading specs from %s\n", filename);
1501 /* Open and stat the file. */
1502 desc = open (filename, O_RDONLY, 0);
1504 pfatal_with_name (filename);
1505 if (stat (filename, &statbuf) < 0)
1506 pfatal_with_name (filename);
1508 /* Read contents of file into BUFFER. */
1509 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1510 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1512 pfatal_with_name (filename);
1513 buffer[readlen] = 0;
1516 /* Scan BUFFER for specs, putting them in the vector. */
1522 char *in, *out, *p1, *p2, *p3;
1524 /* Advance P in BUFFER to the next nonblank nocomment line. */
1525 p = skip_whitespace (p);
1529 /* Is this a special command that starts with '%'? */
1530 /* Don't allow this for the main specs file, since it would
1531 encourage people to overwrite it. */
1532 if (*p == '%' && !main_p)
1535 while (*p && *p != '\n')
1538 p++; /* Skip '\n' */
1540 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1541 && (p1[sizeof "%include" - 1] == ' '
1542 || p1[sizeof "%include" - 1] == '\t'))
1546 p1 += sizeof ("%include");
1547 while (*p1 == ' ' || *p1 == '\t')
1550 if (*p1++ != '<' || p[-2] != '>')
1551 fatal ("specs %%include syntax malformed after %d characters",
1555 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1556 read_specs (new_filename ? new_filename : p1, FALSE);
1559 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1560 && (p1[sizeof "%include_noerr" - 1] == ' '
1561 || p1[sizeof "%include_noerr" - 1] == '\t'))
1565 p1 += sizeof "%include_noerr";
1566 while (*p1 == ' ' || *p1 == '\t') p1++;
1568 if (*p1++ != '<' || p[-2] != '>')
1569 fatal ("specs %%include syntax malformed after %d characters",
1573 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1575 read_specs (new_filename, FALSE);
1576 else if (verbose_flag)
1577 fprintf (stderr, "Could not find specs file %s\n", p1);
1580 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1581 && (p1[sizeof "%rename" - 1] == ' '
1582 || p1[sizeof "%rename" - 1] == '\t'))
1585 struct spec_list *sl;
1587 /* Get original name */
1588 p1 += sizeof "%rename";
1589 while (*p1 == ' ' || *p1 == '\t')
1592 if (! ISALPHA ((unsigned char)*p1))
1593 fatal ("specs %%rename syntax malformed after %d characters",
1597 while (*p2 && !ISSPACE ((unsigned char)*p2))
1600 if (*p2 != ' ' && *p2 != '\t')
1601 fatal ("specs %%rename syntax malformed after %d characters",
1606 while (*p2 == ' ' || *p2 == '\t')
1609 if (! ISALPHA ((unsigned char)*p2))
1610 fatal ("specs %%rename syntax malformed after %d characters",
1613 /* Get new spec name */
1615 while (*p3 && !ISSPACE ((unsigned char)*p3))
1619 fatal ("specs %%rename syntax malformed after %d characters",
1623 for (sl = specs; sl; sl = sl->next)
1624 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1628 fatal ("specs %s spec was not found to be renamed", p1);
1630 if (strcmp (p1, p2) == 0)
1635 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1637 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1641 set_spec (p2, *(sl->ptr_spec));
1643 free (*(sl->ptr_spec));
1645 *(sl->ptr_spec) = "";
1650 fatal ("specs unknown %% command after %d characters",
1654 /* Find the colon that should end the suffix. */
1656 while (*p1 && *p1 != ':' && *p1 != '\n')
1659 /* The colon shouldn't be missing. */
1661 fatal ("specs file malformed after %d characters", p1 - buffer);
1663 /* Skip back over trailing whitespace. */
1665 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1668 /* Copy the suffix to a string. */
1669 suffix = save_string (p, p2 - p);
1670 /* Find the next line. */
1671 p = skip_whitespace (p1 + 1);
1673 fatal ("specs file malformed after %d characters", p - buffer);
1676 /* Find next blank line or end of string. */
1677 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1680 /* Specs end at the blank line and do not include the newline. */
1681 spec = save_string (p, p1 - p);
1684 /* Delete backslash-newline sequences from the spec. */
1689 if (in[0] == '\\' && in[1] == '\n')
1691 else if (in[0] == '#')
1692 while (*in && *in != '\n')
1700 if (suffix[0] == '*')
1702 if (! strcmp (suffix, "*link_command"))
1703 link_command_spec = spec;
1705 set_spec (suffix + 1, spec);
1709 /* Add this pair to the vector. */
1711 = ((struct compiler *)
1712 xrealloc (compilers,
1713 (n_compilers + 2) * sizeof (struct compiler)));
1715 compilers[n_compilers].suffix = suffix;
1716 bzero ((char *) compilers[n_compilers].spec,
1717 sizeof compilers[n_compilers].spec);
1718 compilers[n_compilers].spec[0] = spec;
1720 bzero ((char *) &compilers[n_compilers],
1721 sizeof compilers[n_compilers]);
1725 link_command_spec = spec;
1728 if (link_command_spec == 0)
1729 fatal ("spec file has no spec for linking");
1732 /* Record the names of temporary files we tell compilers to write,
1733 and delete them at the end of the run. */
1735 /* This is the common prefix we use to make temp file names.
1736 It is chosen once for each run of this program.
1737 It is substituted into a spec by %g.
1738 Thus, all temp file names contain this prefix.
1739 In practice, all temp file names start with this prefix.
1741 This prefix comes from the envvar TMPDIR if it is defined;
1742 otherwise, from the P_tmpdir macro if that is defined;
1743 otherwise, in /usr/tmp or /tmp;
1744 or finally the current directory if all else fails. */
1746 static char *temp_filename;
1748 /* Length of the prefix. */
1750 static int temp_filename_length;
1752 /* Define the list of temporary files to delete. */
1757 struct temp_file *next;
1760 /* Queue of files to delete on success or failure of compilation. */
1761 static struct temp_file *always_delete_queue;
1762 /* Queue of files to delete on failure of compilation. */
1763 static struct temp_file *failure_delete_queue;
1765 /* Record FILENAME as a file to be deleted automatically.
1766 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1767 otherwise delete it in any case.
1768 FAIL_DELETE nonzero means delete it if a compilation step fails;
1769 otherwise delete it in any case. */
1772 record_temp_file (filename, always_delete, fail_delete)
1777 register char *name;
1778 name = xmalloc (strlen (filename) + 1);
1779 strcpy (name, filename);
1783 register struct temp_file *temp;
1784 for (temp = always_delete_queue; temp; temp = temp->next)
1785 if (! strcmp (name, temp->name))
1788 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1789 temp->next = always_delete_queue;
1791 always_delete_queue = temp;
1798 register struct temp_file *temp;
1799 for (temp = failure_delete_queue; temp; temp = temp->next)
1800 if (! strcmp (name, temp->name))
1803 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1804 temp->next = failure_delete_queue;
1806 failure_delete_queue = temp;
1812 /* Delete all the temporary files whose names we previously recorded. */
1815 delete_if_ordinary (name)
1822 printf ("Delete %s? (y or n) ", name);
1826 while ((c = getchar ()) != '\n' && c != EOF)
1829 if (i == 'y' || i == 'Y')
1831 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1832 if (unlink (name) < 0)
1834 perror_with_name (name);
1838 delete_temp_files ()
1840 register struct temp_file *temp;
1842 for (temp = always_delete_queue; temp; temp = temp->next)
1843 delete_if_ordinary (temp->name);
1844 always_delete_queue = 0;
1847 /* Delete all the files to be deleted on error. */
1850 delete_failure_queue ()
1852 register struct temp_file *temp;
1854 for (temp = failure_delete_queue; temp; temp = temp->next)
1855 delete_if_ordinary (temp->name);
1859 clear_failure_queue ()
1861 failure_delete_queue = 0;
1864 /* Routine to add variables to the environment. We do this to pass
1865 the pathname of the gcc driver, and the directories search to the
1866 collect2 program, which is being run as ld. This way, we can be
1867 sure of executing the right compiler when collect2 wants to build
1868 constructors and destructors. Since the environment variables we
1869 use come from an obstack, we don't have to worry about allocating
1878 #ifndef VMS /* nor about VMS */
1880 extern char **environ;
1881 char **old_environ = environ;
1885 int str_len = strlen (str);
1889 while ((ch = *p++) != '\0' && ch != '=')
1895 /* Search for replacing an existing environment variable, and
1896 count the number of total environment variables. */
1897 for (envp = old_environ; *envp; envp++)
1900 if (!strncmp (str, *envp, name_len))
1907 /* Add a new environment variable */
1908 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1910 memcpy ((char *) (environ + 1), (char *) old_environ,
1911 sizeof (char *) * (num_envs+1));
1916 #endif /* HAVE_PUTENV */
1919 /* Build a list of search directories from PATHS.
1920 PREFIX is a string to prepend to the list.
1921 If CHECK_DIR_P is non-zero we ensure the directory exists.
1922 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1923 It is also used by the --print-search-dirs flag. */
1926 build_search_list (paths, prefix, check_dir_p)
1927 struct path_prefix *paths;
1931 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1933 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1934 int first_time = TRUE;
1935 struct prefix_list *pprefix;
1937 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1939 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1941 int len = strlen (pprefix->prefix);
1945 || is_directory (pprefix->prefix, machine_suffix, 0)))
1948 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1951 obstack_grow (&collect_obstack, pprefix->prefix, len);
1952 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1955 if (just_machine_suffix
1956 && pprefix->require_machine_suffix == 2
1958 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1961 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1964 obstack_grow (&collect_obstack, pprefix->prefix, len);
1965 obstack_grow (&collect_obstack, just_machine_suffix,
1969 if (! pprefix->require_machine_suffix)
1972 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1975 obstack_grow (&collect_obstack, pprefix->prefix, len);
1979 obstack_1grow (&collect_obstack, '\0');
1980 return obstack_finish (&collect_obstack);
1983 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1987 putenv_from_prefixes (paths, env_var)
1988 struct path_prefix *paths;
1991 putenv (build_search_list (paths, env_var, 1));
1994 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1995 access to check permissions.
1996 Return 0 if not found, otherwise return its name, allocated with malloc. */
1999 find_a_file (pprefix, name, mode)
2000 struct path_prefix *pprefix;
2005 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2006 struct prefix_list *pl;
2007 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2009 #ifdef DEFAULT_ASSEMBLER
2010 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) {
2011 name = DEFAULT_ASSEMBLER;
2012 len = strlen(name)+1;
2013 temp = xmalloc (len);
2014 strcpy (temp, name);
2019 #ifdef DEFAULT_LINKER
2020 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) {
2021 name = DEFAULT_LINKER;
2022 len = strlen(name)+1;
2023 temp = xmalloc (len);
2024 strcpy (temp, name);
2030 len += strlen (machine_suffix);
2032 temp = xmalloc (len);
2034 /* Determine the filename to execute (special case for absolute paths). */
2036 if (*name == '/' || *name == DIR_SEPARATOR
2037 /* Check for disk name on MS-DOS-based systems. */
2038 || (DIR_SEPARATOR == '\\' && name[1] == ':'
2039 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
2041 if (access (name, mode) == 0)
2043 strcpy (temp, name);
2048 for (pl = pprefix->plist; pl; pl = pl->next)
2052 /* Some systems have a suffix for executable files.
2053 So try appending that first. */
2054 if (file_suffix[0] != 0)
2056 strcpy (temp, pl->prefix);
2057 strcat (temp, machine_suffix);
2058 strcat (temp, name);
2059 strcat (temp, file_suffix);
2060 if (access (temp, mode) == 0)
2062 if (pl->used_flag_ptr != 0)
2063 *pl->used_flag_ptr = 1;
2068 /* Now try just the name. */
2069 strcpy (temp, pl->prefix);
2070 strcat (temp, machine_suffix);
2071 strcat (temp, name);
2072 if (access (temp, mode) == 0)
2074 if (pl->used_flag_ptr != 0)
2075 *pl->used_flag_ptr = 1;
2080 /* Certain prefixes are tried with just the machine type,
2081 not the version. This is used for finding as, ld, etc. */
2082 if (just_machine_suffix && pl->require_machine_suffix == 2)
2084 /* Some systems have a suffix for executable files.
2085 So try appending that first. */
2086 if (file_suffix[0] != 0)
2088 strcpy (temp, pl->prefix);
2089 strcat (temp, just_machine_suffix);
2090 strcat (temp, name);
2091 strcat (temp, file_suffix);
2092 if (access (temp, mode) == 0)
2094 if (pl->used_flag_ptr != 0)
2095 *pl->used_flag_ptr = 1;
2100 strcpy (temp, pl->prefix);
2101 strcat (temp, just_machine_suffix);
2102 strcat (temp, name);
2103 if (access (temp, mode) == 0)
2105 if (pl->used_flag_ptr != 0)
2106 *pl->used_flag_ptr = 1;
2111 /* Certain prefixes can't be used without the machine suffix
2112 when the machine or version is explicitly specified. */
2113 if (! pl->require_machine_suffix)
2115 /* Some systems have a suffix for executable files.
2116 So try appending that first. */
2117 if (file_suffix[0] != 0)
2119 strcpy (temp, pl->prefix);
2120 strcat (temp, name);
2121 strcat (temp, file_suffix);
2122 if (access (temp, mode) == 0)
2124 if (pl->used_flag_ptr != 0)
2125 *pl->used_flag_ptr = 1;
2130 strcpy (temp, pl->prefix);
2131 strcat (temp, name);
2132 if (access (temp, mode) == 0)
2134 if (pl->used_flag_ptr != 0)
2135 *pl->used_flag_ptr = 1;
2145 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2146 at the start of the list, otherwise it goes at the end.
2148 If WARN is nonzero, we will warn if no file is found
2149 through this prefix. WARN should point to an int
2150 which will be set to 1 if this entry is used.
2152 COMPONENT is the value to be passed to update_path.
2154 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2155 the complete value of machine_suffix.
2156 2 means try both machine_suffix and just_machine_suffix. */
2159 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2160 struct path_prefix *pprefix;
2164 int require_machine_suffix;
2167 struct prefix_list *pl, **prev;
2170 if (! first && pprefix->plist)
2172 for (pl = pprefix->plist; pl->next; pl = pl->next)
2177 prev = &pprefix->plist;
2179 /* Keep track of the longest prefix */
2181 prefix = update_path (prefix, component);
2182 len = strlen (prefix);
2183 if (len > pprefix->max_len)
2184 pprefix->max_len = len;
2186 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2187 pl->prefix = save_string (prefix, len);
2188 pl->require_machine_suffix = require_machine_suffix;
2189 pl->used_flag_ptr = warn;
2196 pl->next = (struct prefix_list *) 0;
2200 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2203 unused_prefix_warnings (pprefix)
2204 struct path_prefix *pprefix;
2206 struct prefix_list *pl = pprefix->plist;
2210 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2212 if (pl->require_machine_suffix && machine_suffix)
2213 error ("file path prefix `%s%s' never used", pl->prefix,
2216 error ("file path prefix `%s' never used", pl->prefix);
2218 /* Prevent duplicate warnings. */
2219 *pl->used_flag_ptr = 1;
2227 /* Execute the command specified by the arguments on the current line of spec.
2228 When using pipes, this includes several piped-together commands
2229 with `|' between them.
2231 Return 0 if successful, -1 if failed. */
2237 int n_commands; /* # of command. */
2241 char *prog; /* program name. */
2242 char **argv; /* vector of args. */
2243 int pid; /* pid of process for this command. */
2246 struct command *commands; /* each command buffer with above info. */
2248 /* Count # of piped commands. */
2249 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2250 if (strcmp (argbuf[i], "|") == 0)
2253 /* Get storage for each command. */
2255 = (struct command *) alloca (n_commands * sizeof (struct command));
2257 /* Split argbuf into its separate piped processes,
2258 and record info about each one.
2259 Also search for the programs that are to be run. */
2261 commands[0].prog = argbuf[0]; /* first command. */
2262 commands[0].argv = &argbuf[0];
2263 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2266 commands[0].argv[0] = string;
2268 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2269 if (strcmp (argbuf[i], "|") == 0)
2270 { /* each command. */
2271 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2272 fatal ("-pipe not supported");
2274 argbuf[i] = 0; /* termination of command args. */
2275 commands[n_commands].prog = argbuf[i + 1];
2276 commands[n_commands].argv = &argbuf[i + 1];
2277 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2279 commands[n_commands].argv[0] = string;
2283 argbuf[argbuf_index] = 0;
2285 /* If -v, print what we are about to do, and maybe query. */
2289 /* For help listings, put a blank line between sub-processes. */
2290 if (print_help_list)
2291 fputc ('\n', stderr);
2293 /* Print each piped command as a separate line. */
2294 for (i = 0; i < n_commands ; i++)
2298 for (j = commands[i].argv; *j; j++)
2299 fprintf (stderr, " %s", *j);
2301 /* Print a pipe symbol after all but the last command. */
2302 if (i + 1 != n_commands)
2303 fprintf (stderr, " |");
2304 fprintf (stderr, "\n");
2308 fprintf (stderr, "\nGo ahead? (y or n) ");
2312 while (getchar () != '\n')
2315 if (i != 'y' && i != 'Y')
2320 /* Run each piped subprocess. */
2322 for (i = 0; i < n_commands; i++)
2324 char *errmsg_fmt, *errmsg_arg;
2325 char *string = commands[i].argv[0];
2327 commands[i].pid = pexecute (string, commands[i].argv,
2328 programname, temp_filename,
2329 &errmsg_fmt, &errmsg_arg,
2330 ((i == 0 ? PEXECUTE_FIRST : 0)
2331 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2332 | (string == commands[i].prog
2333 ? PEXECUTE_SEARCH : 0)
2334 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2336 if (commands[i].pid == -1)
2337 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2339 if (string != commands[i].prog)
2345 /* Wait for all the subprocesses to finish.
2346 We don't care what order they finish in;
2347 we know that N_COMMANDS waits will get them all.
2348 Ignore subprocesses that we don't know about,
2349 since they can be spawned by the process that exec'ed us. */
2354 for (i = 0; i < n_commands; )
2360 pid = pwait (commands[i].pid, &status, 0);
2364 for (j = 0; j < n_commands; j++)
2365 if (commands[j].pid == pid)
2370 if (WIFSIGNALED (status))
2372 fatal ("Internal compiler error: program %s got fatal signal %d",
2373 commands[j].prog, WTERMSIG (status));
2377 else if (WIFEXITED (status)
2378 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2388 /* Find all the switches given to us
2389 and make a vector describing them.
2390 The elements of the vector are strings, one per switch given.
2391 If a switch uses following arguments, then the `part1' field
2392 is the switch itself and the `args' field
2393 is a null-terminated vector containing the following arguments.
2394 The `live_cond' field is 1 if the switch is true in a conditional spec,
2395 -1 if false (overridden by a later switch), and is initialized to zero.
2396 The `valid' field is nonzero if any spec has looked at this switch;
2397 if it remains zero at the end of the run, it must be meaningless. */
2407 static struct switchstr *switches;
2409 static int n_switches;
2417 /* Also a vector of input files specified. */
2419 static struct infile *infiles;
2421 static int n_infiles;
2423 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2424 we can tell if there were any user supplied any files or libraries. */
2426 static int added_libraries;
2428 /* And a vector of corresponding output files is made up later. */
2430 static char **outfiles;
2432 /* Used to track if none of the -B paths are used. */
2435 /* Used to track if standard path isn't used and -b or -V is specified. */
2436 static int warn_std;
2438 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2439 static int *warn_std_ptr = 0;
2442 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2444 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2445 is true if we should look for an executable suffix as well. */
2448 convert_filename (name, do_exe)
2453 int len = strlen (name);
2455 #ifdef HAVE_OBJECT_SUFFIX
2456 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2458 && name[len - 2] == '.'
2459 && name[len - 1] == 'o')
2461 obstack_grow (&obstack, name, len - 2);
2462 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2463 name = obstack_finish (&obstack);
2467 #ifdef HAVE_EXECUTABLE_SUFFIX
2468 /* If there is no filetype, make it the executable suffix (which includes
2469 the "."). But don't get confused if we have just "-o". */
2470 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2473 for (i = len - 1; i >= 0; i--)
2474 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2477 for (i++; i < len; i++)
2481 obstack_grow (&obstack, name, len);
2482 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2483 name = obstack_finish (&obstack);
2490 /* Display the command line switches accepted by gcc. */
2494 printf ("Usage: %s [options] file...\n", programname);
2495 printf ("Options:\n");
2497 printf (" --help Display this information\n");
2499 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2500 printf (" -dumpspecs Display all of the built in spec strings\n");
2501 printf (" -dumpversion Display the version of the compiler\n");
2502 printf (" -dumpmachine Display the compiler's target processor\n");
2503 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2504 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2505 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2506 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2507 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2508 printf (" -print-multi-lib Display the mapping between command line options and\n");
2509 printf (" multiple library search directories\n");
2510 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2511 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2512 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2513 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2514 printf (" -save-temps Do not delete intermediate files\n");
2515 printf (" -pipe Use pipes rather than intermediate files\n");
2516 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2517 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2518 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2519 printf (" -V <version> Run gcc version number <version>, if installed\n");
2520 printf (" -v Display the programs invoked by the compiler\n");
2521 printf (" -E Preprocess only; do not compile, assemble or link\n");
2522 printf (" -S Compile only; do not assemble or link\n");
2523 printf (" -c Compile and assemble, but do not link\n");
2524 printf (" -o <file> Place the output into <file>\n");
2525 printf (" -x <language> Specify the language of the following input files\n");
2526 printf (" Permissable languages include: c c++ assembler none\n");
2527 printf (" 'none' means revert to the default behaviour of\n");
2528 printf (" guessing the language based on the file's extension\n");
2530 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2531 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2533 printf ("on to these processes the -W<letter> options must be used.\n");
2535 /* The rest of the options are displayed by invocations of the various
2540 add_preprocessor_option (option, len)
2544 n_preprocessor_options++;
2546 if (! preprocessor_options)
2547 preprocessor_options
2548 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2550 preprocessor_options
2551 = (char **) xrealloc (preprocessor_options,
2552 n_preprocessor_options * sizeof (char *));
2554 preprocessor_options [n_preprocessor_options - 1] = save_string (option, len);
2558 add_assembler_option (option, len)
2562 n_assembler_options++;
2564 if (! assembler_options)
2566 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2569 = (char **) xrealloc (assembler_options,
2570 n_assembler_options * sizeof (char *));
2572 assembler_options [n_assembler_options - 1] = save_string (option, len);
2576 add_linker_option (option, len)
2582 if (! linker_options)
2584 = (char **) xmalloc (n_linker_options * sizeof (char *));
2587 = (char **) xrealloc (linker_options,
2588 n_linker_options * sizeof (char *));
2590 linker_options [n_linker_options - 1] = save_string (option, len);
2593 /* Create the vector `switches' and its contents.
2594 Store its length in `n_switches'. */
2597 process_command (argc, argv)
2603 char *spec_lang = 0;
2604 int last_language_n_infiles;
2607 int lang_n_infiles = 0;
2609 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2613 added_libraries = 0;
2615 /* Figure compiler version from version string. */
2617 compiler_version = save_string (version_string, strlen (version_string));
2618 for (temp = compiler_version; *temp; ++temp)
2627 /* Set up the default search paths. */
2629 if (gcc_exec_prefix)
2631 int len = strlen (gcc_exec_prefix);
2632 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2633 && (gcc_exec_prefix[len-1] == '/'
2634 || gcc_exec_prefix[len-1] == DIR_SEPARATOR))
2636 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2637 if ((*temp == '/' || *temp == DIR_SEPARATOR)
2638 && strncmp (temp+1, "lib", 3) == 0
2639 && (temp[4] == '/' || temp[4] == DIR_SEPARATOR)
2640 && strncmp (temp+5, "gcc-lib", 7) == 0)
2641 len -= sizeof ("/lib/gcc-lib/") - 1;
2644 set_std_prefix (gcc_exec_prefix, len);
2645 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2646 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2649 /* COMPILER_PATH and LIBRARY_PATH have values
2650 that are lists of directory names with colons. */
2652 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2655 char *startp, *endp;
2656 char *nstore = (char *) alloca (strlen (temp) + 3);
2658 startp = endp = temp;
2661 if (*endp == PATH_SEPARATOR || *endp == 0)
2663 strncpy (nstore, startp, endp-startp);
2665 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2666 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2668 nstore[endp-startp] = DIR_SEPARATOR;
2669 nstore[endp-startp+1] = 0;
2672 nstore[endp-startp] = 0;
2673 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2674 add_prefix (&include_prefixes,
2675 concat (nstore, "include", NULL_PTR),
2679 endp = startp = endp + 1;
2686 GET_ENV_PATH_LIST (temp, "LIBRARY_PATH");
2687 if (temp && *cross_compile == '0')
2689 char *startp, *endp;
2690 char *nstore = (char *) alloca (strlen (temp) + 3);
2692 startp = endp = temp;
2695 if (*endp == PATH_SEPARATOR || *endp == 0)
2697 strncpy (nstore, startp, endp-startp);
2699 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2700 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2702 nstore[endp-startp] = DIR_SEPARATOR;
2703 nstore[endp-startp+1] = 0;
2706 nstore[endp-startp] = 0;
2707 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2711 endp = startp = endp + 1;
2718 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2719 GET_ENV_PATH_LIST (temp, "LPATH");
2720 if (temp && *cross_compile == '0')
2722 char *startp, *endp;
2723 char *nstore = (char *) alloca (strlen (temp) + 3);
2725 startp = endp = temp;
2728 if (*endp == PATH_SEPARATOR || *endp == 0)
2730 strncpy (nstore, startp, endp-startp);
2732 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2733 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2735 nstore[endp-startp] = DIR_SEPARATOR;
2736 nstore[endp-startp+1] = 0;
2739 nstore[endp-startp] = 0;
2740 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2744 endp = startp = endp + 1;
2751 /* Convert new-style -- options to old-style. */
2752 translate_options (&argc, &argv);
2754 #ifdef LANG_SPECIFIC_DRIVER
2755 /* Do language-specific adjustment/addition of flags. */
2756 lang_specific_driver (fatal, &argc, &argv, &added_libraries);
2759 /* Scan argv twice. Here, the first time, just count how many switches
2760 there will be in their vector, and how many input files in theirs.
2761 Here we also parse the switches that cc itself uses (e.g. -v). */
2763 for (i = 1; i < argc; i++)
2765 if (! strcmp (argv[i], "-dumpspecs"))
2767 struct spec_list *sl;
2769 for (sl = specs; sl; sl = sl->next)
2770 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2773 else if (! strcmp (argv[i], "-dumpversion"))
2775 printf ("%s\n", spec_version);
2778 else if (! strcmp (argv[i], "-dumpmachine"))
2780 printf ("%s\n", spec_machine);
2783 else if (strcmp (argv[i], "-fhelp") == 0)
2785 /* translate_options () has turned --help into -fhelp. */
2786 print_help_list = 1;
2788 /* We will be passing a dummy file on to the sub-processes. */
2792 add_preprocessor_option ("--help", 6);
2793 add_assembler_option ("--help", 6);
2794 add_linker_option ("--help", 6);
2796 else if (! strcmp (argv[i], "-print-search-dirs"))
2797 print_search_dirs = 1;
2798 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2799 print_file_name = "libgcc.a";
2800 else if (! strncmp (argv[i], "-print-file-name=", 17))
2801 print_file_name = argv[i] + 17;
2802 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2803 print_prog_name = argv[i] + 17;
2804 else if (! strcmp (argv[i], "-print-multi-lib"))
2805 print_multi_lib = 1;
2806 else if (! strcmp (argv[i], "-print-multi-directory"))
2807 print_multi_directory = 1;
2808 else if (! strncmp (argv[i], "-Wa,", 4))
2811 /* Pass the rest of this option to the assembler. */
2813 /* Split the argument at commas. */
2815 for (j = 4; argv[i][j]; j++)
2816 if (argv[i][j] == ',')
2818 add_assembler_option (argv[i] + prev, j - prev);
2822 /* Record the part after the last comma. */
2823 add_assembler_option (argv[i] + prev, j - prev);
2825 else if (! strncmp (argv[i], "-Wp,", 4))
2828 /* Pass the rest of this option to the preprocessor. */
2830 /* Split the argument at commas. */
2832 for (j = 4; argv[i][j]; j++)
2833 if (argv[i][j] == ',')
2835 add_preprocessor_option (argv[i] + prev, j - prev);
2839 /* Record the part after the last comma. */
2840 add_preprocessor_option (argv[i] + prev, j - prev);
2842 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2843 /* The +e options to the C++ front-end. */
2845 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2848 /* Split the argument at commas. */
2849 for (j = 3; argv[i][j]; j++)
2850 n_infiles += (argv[i][j] == ',');
2852 else if (strcmp (argv[i], "-Xlinker") == 0)
2855 fatal ("argument to `-Xlinker' is missing");
2860 else if (strncmp (argv[i], "-l", 2) == 0)
2862 else if (strcmp (argv[i], "-save-temps") == 0)
2864 save_temps_flag = 1;
2867 else if (strcmp (argv[i], "-specs") == 0)
2869 struct user_specs *user = (struct user_specs *)
2870 xmalloc (sizeof (struct user_specs));
2872 fatal ("argument to `-specs' is missing");
2874 user->next = (struct user_specs *)0;
2875 user->filename = argv[i];
2876 if (user_specs_tail)
2877 user_specs_tail->next = user;
2879 user_specs_head = user;
2880 user_specs_tail = user;
2882 else if (strncmp (argv[i], "-specs=", 7) == 0)
2884 struct user_specs *user = (struct user_specs *)
2885 xmalloc (sizeof (struct user_specs));
2886 if (strlen (argv[i]) == 7)
2887 fatal ("argument to `-specs=' is missing");
2889 user->next = (struct user_specs *)0;
2890 user->filename = argv[i]+7;
2891 if (user_specs_tail)
2892 user_specs_tail->next = user;
2894 user_specs_head = user;
2895 user_specs_tail = user;
2897 else if (argv[i][0] == '-' && argv[i][1] != 0)
2899 register char *p = &argv[i][1];
2900 register int c = *p;
2906 if (p[1] == 0 && i + 1 == argc)
2907 fatal ("argument to `-b' is missing");
2909 spec_machine = argv[++i];
2911 spec_machine = p + 1;
2913 warn_std_ptr = &warn_std;
2919 if (p[1] == 0 && i + 1 == argc)
2920 fatal ("argument to `-B' is missing");
2925 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2926 add_prefix (&startfile_prefixes, value, NULL_PTR,
2928 add_prefix (&include_prefixes, concat (value, "include",
2930 NULL_PTR, 1, 0, NULL_PTR);
2932 /* As a kludge, if the arg is "[foo/]stageN/", just add
2933 "[foo/]include" to the include prefix. */
2935 int len = strlen (value);
2938 && (value[len - 8] == '/'
2939 || value[len - 8] == DIR_SEPARATOR)))
2940 && strncmp (value + len - 7, "stage", 5) == 0
2941 && ISDIGIT (value[len - 2])
2942 && (value[len - 1] == '/'
2943 || value[len - 1] == DIR_SEPARATOR))
2946 add_prefix (&include_prefixes, "include", NULL_PTR,
2950 char *string = xmalloc (len + 1);
2951 strncpy (string, value, len-7);
2952 strcpy (string+len-7, "include");
2953 add_prefix (&include_prefixes, string, NULL_PTR,
2962 case 'v': /* Print our subcommands and print versions. */
2964 /* If they do anything other than exactly `-v', don't set
2965 verbose_flag; rather, continue on to give the error. */
2973 if (p[1] == 0 && i + 1 == argc)
2974 fatal ("argument to `-V' is missing");
2976 spec_version = argv[++i];
2978 spec_version = p + 1;
2979 compiler_version = spec_version;
2980 warn_std_ptr = &warn_std;
2982 /* Validate the version number. Use the same checks
2983 done when inserting it into a spec.
2985 The format of the version string is
2986 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2988 char *v = compiler_version;
2990 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2991 while (! ISDIGIT (*v))
2994 if (v > compiler_version && v[-1] != '-')
2995 fatal ("invalid version number format");
2997 /* Set V after the first period. */
2998 while (ISDIGIT (*v))
3002 fatal ("invalid version number format");
3005 while (ISDIGIT (*v))
3008 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3009 fatal ("invalid version number format");
3025 #if defined(HAVE_EXECUTABLE_SUFFIX)
3030 /* Forward scan, just in case -S or -c is specified
3037 if (argv[j][0] == '-')
3039 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3045 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3046 j += skip - (argv[j][2] != 0);
3047 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3054 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3056 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3058 argv[i] = convert_filename (argv[i], ! have_c);
3066 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3067 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3068 else if (WORD_SWITCH_TAKES_ARG (p))
3069 i += WORD_SWITCH_TAKES_ARG (p);
3079 if (have_c && have_o && lang_n_infiles > 1)
3080 fatal ("cannot specify -o with -c or -S and multiple compilations");
3082 /* Set up the search paths before we go looking for config files. */
3084 /* These come before the md prefixes so that we will find gcc's subcommands
3085 (such as cpp) rather than those of the host system. */
3086 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3087 as well as trying the machine and the version. */
3089 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3090 0, 2, warn_std_ptr);
3091 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3092 0, 2, warn_std_ptr);
3095 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3096 0, 1, warn_std_ptr);
3097 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3098 0, 1, warn_std_ptr);
3100 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3101 dir_separator_str, NULL_PTR);
3103 /* If tooldir is relative, base it on exec_prefixes. A relative
3104 tooldir lets us move the installed tree as a unit.
3106 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3107 directories, so that we can search both the user specified directory
3108 and the standard place. */
3110 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
3112 if (gcc_exec_prefix)
3114 char *gcc_exec_tooldir_prefix
3115 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3116 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3118 add_prefix (&exec_prefixes,
3119 concat (gcc_exec_tooldir_prefix, "bin",
3120 dir_separator_str, NULL_PTR),
3121 NULL_PTR, 0, 0, NULL_PTR);
3122 add_prefix (&startfile_prefixes,
3123 concat (gcc_exec_tooldir_prefix, "lib",
3124 dir_separator_str, NULL_PTR),
3125 NULL_PTR, 0, 0, NULL_PTR);
3128 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3129 dir_separator_str, spec_version,
3130 dir_separator_str, tooldir_prefix, NULL_PTR);
3133 add_prefix (&exec_prefixes,
3134 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3135 "BINUTILS", 0, 0, NULL_PTR);
3136 add_prefix (&startfile_prefixes,
3137 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3138 "BINUTILS", 0, 0, NULL_PTR);
3140 /* More prefixes are enabled in main, after we read the specs file
3141 and determine whether this is cross-compilation or not. */
3144 /* Then create the space for the vectors and scan again. */
3146 switches = ((struct switchstr *)
3147 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3148 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3151 last_language_n_infiles = -1;
3153 /* This, time, copy the text of each switch and store a pointer
3154 to the copy in the vector of switches.
3155 Store all the infiles in their vector. */
3157 for (i = 1; i < argc; i++)
3159 /* Just skip the switches that were handled by the preceding loop. */
3160 if (! strncmp (argv[i], "-Wa,", 4))
3162 else if (! strncmp (argv[i], "-Wp,", 4))
3164 else if (! strcmp (argv[i], "-print-search-dirs"))
3166 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3168 else if (! strncmp (argv[i], "-print-file-name=", 17))
3170 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3172 else if (! strcmp (argv[i], "-print-multi-lib"))
3174 else if (! strcmp (argv[i], "-print-multi-directory"))
3176 else if (strcmp (argv[i], "-fhelp") == 0)
3180 /* Create a dummy input file, so that we can pass --help on to
3181 the various sub-processes. */
3182 infiles[n_infiles].language = "c";
3183 infiles[n_infiles++].name = "help-dummy";
3185 /* Preserve the --help switch so that it can be caught by the
3187 switches[n_switches].part1 = "--help";
3188 switches[n_switches].args = 0;
3189 switches[n_switches].live_cond = 0;
3190 switches[n_switches].valid = 0;
3195 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3197 /* Compensate for the +e options to the C++ front-end;
3198 they're there simply for cfront call-compatibility. We do
3199 some magic in default_compilers to pass them down properly.
3200 Note we deliberately start at the `+' here, to avoid passing
3201 -e0 or -e1 down into the linker. */
3202 switches[n_switches].part1 = &argv[i][0];
3203 switches[n_switches].args = 0;
3204 switches[n_switches].live_cond = 0;
3205 switches[n_switches].valid = 0;
3208 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3211 /* Split the argument at commas. */
3213 for (j = 4; argv[i][j]; j++)
3214 if (argv[i][j] == ',')
3216 infiles[n_infiles].language = "*";
3217 infiles[n_infiles++].name
3218 = save_string (argv[i] + prev, j - prev);
3221 /* Record the part after the last comma. */
3222 infiles[n_infiles].language = "*";
3223 infiles[n_infiles++].name = argv[i] + prev;
3225 else if (strcmp (argv[i], "-Xlinker") == 0)
3227 infiles[n_infiles].language = "*";
3228 infiles[n_infiles++].name = argv[++i];
3230 else if (strncmp (argv[i], "-l", 2) == 0)
3232 infiles[n_infiles].language = "*";
3233 infiles[n_infiles++].name = argv[i];
3235 else if (strcmp (argv[i], "-specs") == 0)
3237 else if (strncmp (argv[i], "-specs=", 7) == 0)
3239 /* -save-temps overrides -pipe, so that temp files are produced */
3240 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
3241 error ("Warning: -pipe ignored since -save-temps specified");
3242 else if (argv[i][0] == '-' && argv[i][1] != 0)
3244 register char *p = &argv[i][1];
3245 register int c = *p;
3249 if (p[1] == 0 && i + 1 == argc)
3250 fatal ("argument to `-x' is missing");
3252 spec_lang = argv[++i];
3255 if (! strcmp (spec_lang, "none"))
3256 /* Suppress the warning if -xnone comes after the last input
3257 file, because alternate command interfaces like g++ might
3258 find it useful to place -xnone after each input file. */
3261 last_language_n_infiles = n_infiles;
3264 switches[n_switches].part1 = p;
3265 /* Deal with option arguments in separate argv elements. */
3266 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3267 || WORD_SWITCH_TAKES_ARG (p))
3270 int n_args = WORD_SWITCH_TAKES_ARG (p);
3274 /* Count only the option arguments in separate argv elements. */
3275 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3277 if (i + n_args >= argc)
3278 fatal ("argument to `-%s' is missing", p);
3279 switches[n_switches].args
3280 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3282 switches[n_switches].args[j++] = argv[++i];
3283 /* Null-terminate the vector. */
3284 switches[n_switches].args[j] = 0;
3286 else if (index (switches_need_spaces, c))
3288 /* On some systems, ld cannot handle some options without
3289 a space. So split the option from its argument. */
3290 char *part1 = (char *) xmalloc (2);
3294 switches[n_switches].part1 = part1;
3295 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3296 switches[n_switches].args[0] = xmalloc (strlen (p));
3297 strcpy (switches[n_switches].args[0], &p[1]);
3298 switches[n_switches].args[1] = 0;
3301 switches[n_switches].args = 0;
3303 switches[n_switches].live_cond = 0;
3304 switches[n_switches].valid = 0;
3305 /* This is always valid, since gcc.c itself understands it. */
3306 if (!strcmp (p, "save-temps"))
3307 switches[n_switches].valid = 1;
3310 char ch = switches[n_switches].part1[0];
3311 if (ch == 'V' || ch == 'b' || ch == 'B')
3312 switches[n_switches].valid = 1;
3318 #ifdef HAVE_OBJECT_SUFFIX
3319 argv[i] = convert_filename (argv[i], 0);
3322 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3324 perror_with_name (argv[i]);
3329 infiles[n_infiles].language = spec_lang;
3330 infiles[n_infiles++].name = argv[i];
3335 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3336 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3338 switches[n_switches].part1 = 0;
3339 infiles[n_infiles].name = 0;
3342 /* Process a spec string, accumulating and running commands. */
3344 /* These variables describe the input file name.
3345 input_file_number is the index on outfiles of this file,
3346 so that the output file name can be stored for later use by %o.
3347 input_basename is the start of the part of the input file
3348 sans all directory names, and basename_length is the number
3349 of characters starting there excluding the suffix .c or whatever. */
3351 char *input_filename;
3352 static int input_file_number;
3353 size_t input_filename_length;
3354 static int basename_length;
3355 static char *input_basename;
3356 static char *input_suffix;
3358 /* These are variables used within do_spec and do_spec_1. */
3360 /* Nonzero if an arg has been started and not yet terminated
3361 (with space, tab or newline). */
3362 static int arg_going;
3364 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3365 is a temporary file name. */
3366 static int delete_this_arg;
3368 /* Nonzero means %w has been seen; the next arg to be terminated
3369 is the output file name of this compilation. */
3370 static int this_is_output_file;
3372 /* Nonzero means %s has been seen; the next arg to be terminated
3373 is the name of a library file and we should try the standard
3374 search dirs for it. */
3375 static int this_is_library_file;
3377 /* Nonzero means that the input of this command is coming from a pipe. */
3378 static int input_from_pipe;
3380 /* Process the spec SPEC and run the commands specified therein.
3381 Returns 0 if the spec is successfully processed; -1 if failed. */
3391 delete_this_arg = 0;
3392 this_is_output_file = 0;
3393 this_is_library_file = 0;
3394 input_from_pipe = 0;
3396 value = do_spec_1 (spec, 0, NULL_PTR);
3398 /* Force out any unfinished command.
3399 If -pipe, this forces out the last command if it ended in `|'. */
3402 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3405 if (argbuf_index > 0)
3412 /* Process the sub-spec SPEC as a portion of a larger spec.
3413 This is like processing a whole spec except that we do
3414 not initialize at the beginning and we do not supply a
3415 newline by default at the end.
3416 INSWITCH nonzero means don't process %-sequences in SPEC;
3417 in this case, % is treated as an ordinary character.
3418 This is used while substituting switches.
3419 INSWITCH nonzero also causes SPC not to terminate an argument.
3421 Value is zero unless a line was finished
3422 and the command on that line reported an error. */
3425 do_spec_1 (spec, inswitch, soft_matched_part)
3428 char *soft_matched_part;
3430 register char *p = spec;
3437 /* If substituting a switch, treat all chars like letters.
3438 Otherwise, NL, SPC, TAB and % are special. */
3439 switch (inswitch ? 'a' : c)
3442 /* End of line: finish any pending argument,
3443 then run the pending command if one has been started. */
3446 obstack_1grow (&obstack, 0);
3447 string = obstack_finish (&obstack);
3448 if (this_is_library_file)
3449 string = find_file (string);
3450 store_arg (string, delete_this_arg, this_is_output_file);
3451 if (this_is_output_file)
3452 outfiles[input_file_number] = string;
3456 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3458 for (i = 0; i < n_switches; i++)
3459 if (!strcmp (switches[i].part1, "pipe"))
3462 /* A `|' before the newline means use a pipe here,
3463 but only if -pipe was specified.
3464 Otherwise, execute now and don't pass the `|' as an arg. */
3467 input_from_pipe = 1;
3468 switches[i].valid = 1;
3475 if (argbuf_index > 0)
3481 /* Reinitialize for a new command, and for a new argument. */
3484 delete_this_arg = 0;
3485 this_is_output_file = 0;
3486 this_is_library_file = 0;
3487 input_from_pipe = 0;
3491 /* End any pending argument. */
3494 obstack_1grow (&obstack, 0);
3495 string = obstack_finish (&obstack);
3496 if (this_is_library_file)
3497 string = find_file (string);
3498 store_arg (string, delete_this_arg, this_is_output_file);
3499 if (this_is_output_file)
3500 outfiles[input_file_number] = string;
3504 obstack_1grow (&obstack, c);
3510 /* Space or tab ends an argument if one is pending. */
3513 obstack_1grow (&obstack, 0);
3514 string = obstack_finish (&obstack);
3515 if (this_is_library_file)
3516 string = find_file (string);
3517 store_arg (string, delete_this_arg, this_is_output_file);
3518 if (this_is_output_file)
3519 outfiles[input_file_number] = string;
3521 /* Reinitialize for a new argument. */
3523 delete_this_arg = 0;
3524 this_is_output_file = 0;
3525 this_is_library_file = 0;
3532 fatal ("Invalid specification! Bug in cc.");
3535 obstack_grow (&obstack, input_basename, basename_length);
3540 delete_this_arg = 2;
3543 /* Dump out the directories specified with LIBRARY_PATH,
3544 followed by the absolute directories
3545 that we search for startfiles. */
3548 struct prefix_list *pl = startfile_prefixes.plist;
3549 size_t bufsize = 100;
3550 char *buffer = (char *) xmalloc (bufsize);
3553 for (; pl; pl = pl->next)
3555 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3556 /* Used on systems which record the specified -L dirs
3557 and use them to search for dynamic linking. */
3558 /* Relative directories always come from -B,
3559 and it is better not to use them for searching
3560 at run time. In particular, stage1 loses */
3561 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3564 /* Try subdirectory if there is one. */
3565 if (multilib_dir != NULL)
3569 if (strlen (pl->prefix) + strlen (machine_suffix)
3571 bufsize = (strlen (pl->prefix)
3572 + strlen (machine_suffix)) * 2 + 1;
3573 buffer = (char *) xrealloc (buffer, bufsize);
3574 strcpy (buffer, pl->prefix);
3575 strcat (buffer, machine_suffix);
3576 if (is_directory (buffer, multilib_dir, 1))
3578 do_spec_1 ("-L", 0, NULL_PTR);
3579 #ifdef SPACE_AFTER_L_OPTION
3580 do_spec_1 (" ", 0, NULL_PTR);
3582 do_spec_1 (buffer, 1, NULL_PTR);
3583 do_spec_1 (multilib_dir, 1, NULL_PTR);
3584 /* Make this a separate argument. */
3585 do_spec_1 (" ", 0, NULL_PTR);
3588 if (!pl->require_machine_suffix)
3590 if (is_directory (pl->prefix, multilib_dir, 1))
3592 do_spec_1 ("-L", 0, NULL_PTR);
3593 #ifdef SPACE_AFTER_L_OPTION
3594 do_spec_1 (" ", 0, NULL_PTR);
3596 do_spec_1 (pl->prefix, 1, NULL_PTR);
3597 do_spec_1 (multilib_dir, 1, NULL_PTR);
3598 /* Make this a separate argument. */
3599 do_spec_1 (" ", 0, NULL_PTR);
3605 if (is_directory (pl->prefix, machine_suffix, 1))
3607 do_spec_1 ("-L", 0, NULL_PTR);
3608 #ifdef SPACE_AFTER_L_OPTION
3609 do_spec_1 (" ", 0, NULL_PTR);
3611 do_spec_1 (pl->prefix, 1, NULL_PTR);
3612 /* Remove slash from machine_suffix. */
3613 if (strlen (machine_suffix) >= bufsize)
3614 bufsize = strlen (machine_suffix) * 2 + 1;
3615 buffer = (char *) xrealloc (buffer, bufsize);
3616 strcpy (buffer, machine_suffix);
3617 idx = strlen (buffer);
3618 if (buffer[idx - 1] == '/'
3619 || buffer[idx - 1] == DIR_SEPARATOR)
3620 buffer[idx - 1] = 0;
3621 do_spec_1 (buffer, 1, NULL_PTR);
3622 /* Make this a separate argument. */
3623 do_spec_1 (" ", 0, NULL_PTR);
3626 if (!pl->require_machine_suffix)
3628 if (is_directory (pl->prefix, "", 1))
3630 do_spec_1 ("-L", 0, NULL_PTR);
3631 #ifdef SPACE_AFTER_L_OPTION
3632 do_spec_1 (" ", 0, NULL_PTR);
3634 /* Remove slash from pl->prefix. */
3635 if (strlen (pl->prefix) >= bufsize)
3636 bufsize = strlen (pl->prefix) * 2 + 1;
3637 buffer = (char *) xrealloc (buffer, bufsize);
3638 strcpy (buffer, pl->prefix);
3639 idx = strlen (buffer);
3640 if (buffer[idx - 1] == '/'
3641 || buffer[idx - 1] == DIR_SEPARATOR)
3642 buffer[idx - 1] = 0;
3643 do_spec_1 (buffer, 1, NULL_PTR);
3644 /* Make this a separate argument. */
3645 do_spec_1 (" ", 0, NULL_PTR);
3654 /* {...:%efoo} means report an error with `foo' as error message
3655 and don't execute any more commands for this file. */
3659 while (*p != 0 && *p != '\n') p++;
3660 buf = (char *) alloca (p - q + 1);
3661 strncpy (buf, q, p - q);
3671 if (save_temps_flag)
3673 obstack_grow (&obstack, input_basename, basename_length);
3674 delete_this_arg = 0;
3678 #ifdef MKTEMP_EACH_FILE
3679 /* ??? This has a problem: the total number of
3680 values mktemp can return is limited.
3681 That matters for the names of object files.
3682 In 2.4, do something about that. */
3683 struct temp_name *t;
3687 if (p[0] == '%' && p[1] == 'O')
3689 /* We don't support extra suffix characters after %O. */
3690 if (*p == '.' || ISALPHA ((unsigned char)*p))
3692 suffix = OBJECT_SUFFIX;
3693 suffix_length = strlen (OBJECT_SUFFIX);
3698 while (*p == '.' || ISALPHA ((unsigned char)*p))
3700 suffix_length = p - suffix;
3703 /* See if we already have an association of %g/%u/%U and
3705 for (t = temp_names; t; t = t->next)
3706 if (t->length == suffix_length
3707 && strncmp (t->suffix, suffix, suffix_length) == 0
3708 && t->unique == (c != 'g'))
3711 /* Make a new association if needed. %u requires one. */
3712 if (t == 0 || c == 'u')
3716 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3717 t->next = temp_names;
3720 t->length = suffix_length;
3721 t->suffix = save_string (suffix, suffix_length);
3722 t->unique = (c != 'g');
3723 temp_filename = make_temp_file (t->suffix);
3724 temp_filename_length = strlen (temp_filename);
3725 t->filename = temp_filename;
3726 t->filename_length = temp_filename_length;
3729 obstack_grow (&obstack, t->filename, t->filename_length);
3730 delete_this_arg = 1;
3732 obstack_grow (&obstack, temp_filename, temp_filename_length);
3733 if (c == 'u' || c == 'U')
3739 sprintf (buff, "%d", unique);
3740 obstack_grow (&obstack, buff, strlen (buff));
3743 delete_this_arg = 1;
3749 obstack_grow (&obstack, input_filename, input_filename_length);
3755 struct prefix_list *pl = include_prefixes.plist;
3757 if (gcc_exec_prefix)
3759 do_spec_1 ("-iprefix", 1, NULL_PTR);
3760 /* Make this a separate argument. */
3761 do_spec_1 (" ", 0, NULL_PTR);
3762 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3763 do_spec_1 (" ", 0, NULL_PTR);
3766 for (; pl; pl = pl->next)
3768 do_spec_1 ("-isystem", 1, NULL_PTR);
3769 /* Make this a separate argument. */
3770 do_spec_1 (" ", 0, NULL_PTR);
3771 do_spec_1 (pl->prefix, 1, NULL_PTR);
3772 do_spec_1 (" ", 0, NULL_PTR);
3779 int max = n_infiles;
3780 #ifdef LANG_SPECIFIC_DRIVER
3781 max += lang_specific_extra_outfiles;
3783 for (i = 0; i < max; i++)
3785 store_arg (outfiles[i], 0, 0);
3790 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3795 this_is_library_file = 1;
3799 this_is_output_file = 1;
3804 int cur_index = argbuf_index;
3805 /* Handle the {...} following the %W. */
3808 p = handle_braces (p + 1);
3811 /* If any args were output, mark the last one for deletion
3813 if (argbuf_index != cur_index)
3814 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3818 /* %x{OPTION} records OPTION for %X to output. */
3824 /* Skip past the option value and make a copy. */
3829 string = save_string (p1 + 1, p - p1 - 2);
3831 /* See if we already recorded this option. */
3832 for (i = 0; i < n_linker_options; i++)
3833 if (! strcmp (string, linker_options[i]))
3839 /* This option is new; add it. */
3840 add_linker_option (string, strlen (string));
3844 /* Dump out the options accumulated previously using %x. */
3846 for (i = 0; i < n_linker_options; i++)
3848 do_spec_1 (linker_options[i], 1, NULL_PTR);
3849 /* Make each accumulated option a separate argument. */
3850 do_spec_1 (" ", 0, NULL_PTR);
3854 /* Dump out the options accumulated previously using -Wa,. */
3856 for (i = 0; i < n_assembler_options; i++)
3858 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3859 /* Make each accumulated option a separate argument. */
3860 do_spec_1 (" ", 0, NULL_PTR);
3864 /* Dump out the options accumulated previously using -Wp,. */
3866 for (i = 0; i < n_preprocessor_options; i++)
3868 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3869 /* Make each accumulated option a separate argument. */
3870 do_spec_1 (" ", 0, NULL_PTR);
3874 /* Here are digits and numbers that just process
3875 a certain constant string as a spec. */
3878 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3884 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3890 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3896 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3902 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3908 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3914 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3920 value = do_spec_1 (link_spec, 0, NULL_PTR);
3926 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3932 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3939 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3943 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3947 if (! strncmp (y, "-D", 2))
3948 /* Copy the whole option. */
3949 while (*y && *y != ' ' && *y != '\t')
3951 else if (*y == ' ' || *y == '\t')
3952 /* Copy whitespace to the result. */
3954 /* Don't copy other options. */
3961 value = do_spec_1 (buf, 0, NULL_PTR);
3969 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3973 /* Copy all of CPP_PREDEFINES into BUF,
3974 but put __ after every -D and at the end of each arg. */
3978 if (! strncmp (y, "-D", 2))
3987 && ! ISUPPER ((unsigned char)*(y+1))))
3989 /* Stick __ at front of macro name. */
3992 /* Arrange to stick __ at the end as well. */
3996 /* Copy the macro name. */
3997 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4006 /* Copy the value given, if any. */
4007 while (*y && *y != ' ' && *y != '\t')
4010 else if (*y == ' ' || *y == '\t')
4011 /* Copy whitespace to the result. */
4013 /* Don't copy -A options */
4019 /* Copy all of CPP_PREDEFINES into BUF,
4020 but put __ after every -D. */
4024 if (! strncmp (y, "-D", 2))
4030 && ! ISUPPER ((unsigned char)*(y+1))))
4032 /* Stick -D__ at front of macro name. */
4038 /* Copy the macro name. */
4039 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4042 /* Copy the value given, if any. */
4043 while (*y && *y != ' ' && *y != '\t')
4048 /* Do not copy this macro - we have just done it before */
4049 while (*y && *y != ' ' && *y != '\t')
4053 else if (*y == ' ' || *y == '\t')
4054 /* Copy whitespace to the result. */
4056 /* Don't copy -A options */
4062 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4066 if (! strncmp (y, "-A", 2))
4067 /* Copy the whole option. */
4068 while (*y && *y != ' ' && *y != '\t')
4070 else if (*y == ' ' || *y == '\t')
4071 /* Copy whitespace to the result. */
4073 /* Don't copy other options. */
4080 value = do_spec_1 (buf, 0, NULL_PTR);
4087 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4092 /* Here we define characters other than letters and digits. */
4095 p = handle_braces (p);
4101 obstack_1grow (&obstack, '%');
4105 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4106 do_spec_1 (" ", 0, NULL_PTR);
4109 /* Process a string found as the value of a spec given by name.
4110 This feature allows individual machine descriptions
4111 to add and use their own specs.
4112 %[...] modifies -D options the way %P does;
4113 %(...) uses the spec unmodified. */
4115 error ("Warning: use of obsolete %%[ operator in specs");
4119 struct spec_list *sl;
4122 /* The string after the S/P is the name of a spec that is to be
4124 while (*p && *p != ')' && *p != ']')
4127 /* See if it's in the list */
4128 for (len = p - name, sl = specs; sl; sl = sl->next)
4129 if (sl->name_len == len && !strncmp (sl->name, name, len))
4131 name = *(sl->ptr_spec);
4133 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
4134 c, sl->name, (c == '(') ? ')' : ']', name);
4143 value = do_spec_1 (name, 0, NULL_PTR);
4149 char *x = (char *) alloca (strlen (name) * 2 + 1);
4154 /* Copy all of NAME into BUF, but put __ after
4155 every -D and at the end of each arg, */
4158 if (! strncmp (y, "-D", 2))
4168 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4169 || *y == '}' || *y == 0))
4182 value = do_spec_1 (buf, 0, NULL_PTR);
4188 /* Discard the closing paren or bracket. */
4196 int c1 = *p++; /* Select first or second version number. */
4197 char *v = compiler_version;
4200 /* The format of the version string is
4201 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4203 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4204 while (! ISDIGIT (*v))
4206 if (v > compiler_version && v[-1] != '-')
4209 /* If desired, advance to second version number. */
4212 /* Set V after the first period. */
4213 while (ISDIGIT (*v))
4220 /* Set Q at the next period or at the end. */
4222 while (ISDIGIT (*q))
4224 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
4227 /* Put that part into the command. */
4228 obstack_grow (&obstack, v, q - v);
4234 if (input_from_pipe)
4235 do_spec_1 ("-", 0, NULL_PTR);
4244 /* Backslash: treat next character as ordinary. */
4249 /* Ordinary character: put it into the current argument. */
4250 obstack_1grow (&obstack, c);
4254 return 0; /* End of string */
4257 /* Return 0 if we call do_spec_1 and that returns -1. */
4263 char *filter, *body = NULL, *endbody;
4267 int include_blanks = 1;
4270 /* A '^' after the open-brace means to not give blanks before args. */
4271 include_blanks = 0, ++p;
4274 /* A `|' after the open-brace means,
4275 if the test fails, output a single minus sign rather than nothing.
4276 This is used in %{|!pipe:...}. */
4280 negate = suffix = 0;
4283 /* A `!' after the open-brace negates the condition:
4284 succeed if the specified switch is not present. */
4288 /* A `.' after the open-brace means test against the current suffix. */
4298 while (*p != ':' && *p != '}' && *p != '|') p++;
4300 if (*p == '|' && pipe_p)
4307 register int count = 1;
4308 register char *q = p;
4310 while (*q++ != ':') continue;
4326 body = p, endbody = p+1;
4331 int found = (input_suffix != 0
4332 && (long) strlen (input_suffix) == (long)(p - filter)
4333 && strncmp (input_suffix, filter, p - filter) == 0);
4339 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4342 else if (p[-1] == '*' && p[0] == '}')
4344 /* Substitute all matching switches as separate args. */
4347 for (i = 0; i < n_switches; i++)
4348 if (!strncmp (switches[i].part1, filter, p - filter)
4349 && check_live_switch (i, p - filter))
4350 give_switch (i, 0, include_blanks);
4354 /* Test for presence of the specified switch. */
4358 /* If name specified ends in *, as in {x*:...},
4359 check for %* and handle that case. */
4360 if (p[-1] == '*' && !negate)
4365 /* First see whether we have %*. */
4369 if (*r == '%' && r[1] == '*')
4373 /* If we do, handle that case. */
4376 /* Substitute all matching switches as separate args.
4377 But do this by substituting for %*
4378 in the text that follows the colon. */
4380 unsigned hard_match_len = p - filter - 1;
4381 char *string = save_string (body, endbody - body - 1);
4383 for (i = 0; i < n_switches; i++)
4384 if (!strncmp (switches[i].part1, filter, hard_match_len)
4385 && check_live_switch (i, -1))
4387 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4388 /* Pass any arguments this switch has. */
4389 give_switch (i, 1, 1);
4392 /* We didn't match. Try again. */
4399 /* If name specified ends in *, as in {x*:...},
4400 check for presence of any switch name starting with x. */
4403 for (i = 0; i < n_switches; i++)
4405 unsigned hard_match_len = p - filter - 1;
4407 if (!strncmp (switches[i].part1, filter, hard_match_len)
4408 && check_live_switch (i, hard_match_len))
4414 /* Otherwise, check for presence of exact name specified. */
4417 for (i = 0; i < n_switches; i++)
4419 if (!strncmp (switches[i].part1, filter, p - filter)
4420 && switches[i].part1[p - filter] == 0
4421 && check_live_switch (i, -1))
4429 /* If it is as desired (present for %{s...}, absent for %{!s...})
4430 then substitute either the switch or the specified
4431 conditional text. */
4432 if (present != negate)
4436 give_switch (i, 0, include_blanks);
4440 if (do_spec_1 (save_string (body, endbody - body - 1),
4447 /* Here if a %{|...} conditional fails: output a minus sign,
4448 which means "standard output" or "standard input". */
4449 do_spec_1 ("-", 0, NULL_PTR);
4454 /* We didn't match; try again. */
4461 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4462 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4463 spec, or -1 if either exact match or %* is used.
4465 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4466 whose value does not begin with "no-" is obsoleted by the same value
4467 with the "no-", similarly for a switch with the "no-" prefix. */
4470 check_live_switch (switchnum, prefix_length)
4474 char *name = switches[switchnum].part1;
4477 /* In the common case of {<at-most-one-letter>*}, a negating
4478 switch would always match, so ignore that case. We will just
4479 send the conflicting switches to the compiler phase. */
4480 if (prefix_length >= 0 && prefix_length <= 1)
4483 /* If we already processed this switch and determined if it was
4484 live or not, return our past determination. */
4485 if (switches[switchnum].live_cond != 0)
4486 return switches[switchnum].live_cond > 0;
4488 /* Now search for duplicate in a manner that depends on the name. */
4492 for (i = switchnum + 1; i < n_switches; i++)
4493 if (switches[i].part1[0] == 'O')
4495 switches[switchnum].valid = 1;
4496 switches[switchnum].live_cond = -1;
4501 case 'W': case 'f': case 'm':
4502 if (! strncmp (name + 1, "no-", 3))
4504 /* We have Xno-YYY, search for XYYY. */
4505 for (i = switchnum + 1; i < n_switches; i++)
4506 if (switches[i].part1[0] == name[0]
4507 && ! strcmp (&switches[i].part1[1], &name[4]))
4509 switches[switchnum].valid = 1;
4510 switches[switchnum].live_cond = -1;
4516 /* We have XYYY, search for Xno-YYY. */
4517 for (i = switchnum + 1; i < n_switches; i++)
4518 if (switches[i].part1[0] == name[0]
4519 && switches[i].part1[1] == 'n'
4520 && switches[i].part1[2] == 'o'
4521 && switches[i].part1[3] == '-'
4522 && !strcmp (&switches[i].part1[4], &name[1]))
4524 switches[switchnum].valid = 1;
4525 switches[switchnum].live_cond = -1;
4532 /* Otherwise the switch is live. */
4533 switches[switchnum].live_cond = 1;
4537 /* Pass a switch to the current accumulating command
4538 in the same form that we received it.
4539 SWITCHNUM identifies the switch; it is an index into
4540 the vector of switches gcc received, which is `switches'.
4541 This cannot fail since it never finishes a command line.
4543 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4545 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4549 give_switch (switchnum, omit_first_word, include_blanks)
4551 int omit_first_word;
4554 if (!omit_first_word)
4556 do_spec_1 ("-", 0, NULL_PTR);
4557 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4560 if (switches[switchnum].args != 0)
4563 for (p = switches[switchnum].args; *p; p++)
4566 do_spec_1 (" ", 0, NULL_PTR);
4567 do_spec_1 (*p, 1, NULL_PTR);
4571 do_spec_1 (" ", 0, NULL_PTR);
4572 switches[switchnum].valid = 1;
4575 /* Search for a file named NAME trying various prefixes including the
4576 user's -B prefix and some standard ones.
4577 Return the absolute file name found. If nothing is found, return NAME. */
4585 /* Try multilib_dir if it is defined. */
4586 if (multilib_dir != NULL)
4590 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4591 strcpy (try, multilib_dir);
4592 strcat (try, dir_separator_str);
4595 newname = find_a_file (&startfile_prefixes, try, R_OK);
4597 /* If we don't find it in the multi library dir, then fall
4598 through and look for it in the normal places. */
4599 if (newname != NULL)
4603 newname = find_a_file (&startfile_prefixes, name, R_OK);
4604 return newname ? newname : name;
4607 /* Determine whether a directory exists. If LINKER, return 0 for
4608 certain fixed names not needed by the linker. If not LINKER, it is
4609 only important to return 0 if the host machine has a small ARG_MAX
4613 is_directory (path1, path2, linker)
4618 int len1 = strlen (path1);
4619 int len2 = strlen (path2);
4620 char *path = (char *) alloca (3 + len1 + len2);
4624 #ifndef SMALL_ARG_MAX
4629 /* Construct the path from the two parts. Ensure the string ends with "/.".
4630 The resulting path will be a directory even if the given path is a
4632 memcpy (path, path1, len1);
4633 memcpy (path + len1, path2, len2);
4634 cp = path + len1 + len2;
4635 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4636 *cp++ = DIR_SEPARATOR;
4640 /* Exclude directories that the linker is known to search. */
4643 && strcmp (path, concat (dir_separator_str, "lib",
4644 dir_separator_str, ".", NULL_PTR)) == 0)
4646 && strcmp (path, concat (dir_separator_str, "usr",
4647 dir_separator_str, "lib",
4648 dir_separator_str, ".", NULL_PTR)) == 0)))
4651 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4654 /* On fatal signals, delete all the temporary files. */
4657 fatal_error (signum)
4660 signal (signum, SIG_DFL);
4661 delete_failure_queue ();
4662 delete_temp_files ();
4663 /* Get the same signal again, this time not handled,
4664 so its normal effect occurs. */
4665 kill (getpid (), signum);
4676 int linker_was_run = 0;
4677 char *explicit_link_files;
4680 struct user_specs *uptr;
4682 p = argv[0] + strlen (argv[0]);
4683 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4686 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4687 signal (SIGINT, fatal_error);
4689 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4690 signal (SIGHUP, fatal_error);
4692 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4693 signal (SIGTERM, fatal_error);
4695 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4696 signal (SIGPIPE, fatal_error);
4700 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4702 obstack_init (&obstack);
4704 /* Build multilib_select, et. al from the separate lines that make up each
4705 multilib selection. */
4707 char **q = multilib_raw;
4710 obstack_init (&multilib_obstack);
4711 while ((p = *q++) != (char *) 0)
4712 obstack_grow (&multilib_obstack, p, strlen (p));
4714 obstack_1grow (&multilib_obstack, 0);
4715 multilib_select = obstack_finish (&multilib_obstack);
4717 q = multilib_matches_raw;
4718 while ((p = *q++) != (char *) 0)
4719 obstack_grow (&multilib_obstack, p, strlen (p));
4721 obstack_1grow (&multilib_obstack, 0);
4722 multilib_matches = obstack_finish (&multilib_obstack);
4726 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4730 obstack_1grow (&multilib_obstack, ' ');
4731 obstack_grow (&multilib_obstack,
4732 multilib_defaults_raw[i],
4733 strlen (multilib_defaults_raw[i]));
4737 obstack_1grow (&multilib_obstack, 0);
4738 multilib_defaults = obstack_finish (&multilib_obstack);
4741 /* Set up to remember the pathname of gcc and any options
4742 needed for collect. We use argv[0] instead of programname because
4743 we need the complete pathname. */
4744 obstack_init (&collect_obstack);
4745 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4746 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4747 putenv (obstack_finish (&collect_obstack));
4749 #ifdef INIT_ENVIRONMENT
4750 /* Set up any other necessary machine specific environment variables. */
4751 putenv (INIT_ENVIRONMENT);
4754 /* Choose directory for temp files. */
4756 #ifndef MKTEMP_EACH_FILE
4757 temp_filename = choose_temp_base ();
4758 temp_filename_length = strlen (temp_filename);
4761 /* Make a table of what switches there are (switches, n_switches).
4762 Make a table of specified input files (infiles, n_infiles).
4763 Decode switches that are handled locally. */
4765 process_command (argc, argv);
4770 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4772 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4773 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4776 for (i = 0; (int)i < n_switches; i++)
4781 obstack_grow (&collect_obstack, " ", 1);
4784 obstack_grow (&collect_obstack, "'-", 2);
4785 q = switches[i].part1;
4786 while ((p = index (q,'\'')))
4788 obstack_grow (&collect_obstack, q, p-q);
4789 obstack_grow (&collect_obstack, "'\\''", 4);
4792 obstack_grow (&collect_obstack, q, strlen (q));
4793 obstack_grow (&collect_obstack, "'", 1);
4795 for (args = switches[i].args; args && *args; args++)
4797 obstack_grow (&collect_obstack, " '", 2);
4799 while ((p = index (q,'\'')))
4801 obstack_grow (&collect_obstack, q, p-q);
4802 obstack_grow (&collect_obstack, "'\\''", 4);
4805 obstack_grow (&collect_obstack, q, strlen (q));
4806 obstack_grow (&collect_obstack, "'", 1);
4809 obstack_grow (&collect_obstack, "\0", 1);
4810 putenv (obstack_finish (&collect_obstack));
4813 /* Initialize the vector of specs to just the default.
4814 This means one element containing 0s, as a terminator. */
4816 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4817 bcopy ((char *) default_compilers, (char *) compilers,
4818 sizeof default_compilers);
4819 n_compilers = n_default_compilers;
4821 /* Read specs from a file if there is one. */
4823 machine_suffix = concat (spec_machine, dir_separator_str,
4824 spec_version, dir_separator_str, NULL_PTR);
4825 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4827 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4828 /* Read the specs file unless it is a default one. */
4829 if (specs_file != 0 && strcmp (specs_file, "specs"))
4830 read_specs (specs_file, TRUE);
4834 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4835 for any override of as, ld and libraries. */
4836 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4837 + strlen (just_machine_suffix)
4838 + sizeof ("specs"));
4840 strcpy (specs_file, standard_exec_prefix);
4841 strcat (specs_file, just_machine_suffix);
4842 strcat (specs_file, "specs");
4843 if (access (specs_file, R_OK) == 0)
4844 read_specs (specs_file, TRUE);
4846 /* Process any user specified specs in the order given on the command
4848 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4850 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4851 read_specs (filename ? filename : uptr->filename, FALSE);
4854 /* If not cross-compiling, look for startfiles in the standard places. */
4855 /* The fact that these are done here, after reading the specs file,
4856 means that it cannot be found in these directories.
4857 But that's okay. It should never be there anyway. */
4858 if (*cross_compile == '0')
4860 #ifdef MD_EXEC_PREFIX
4861 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4862 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4865 #ifdef MD_STARTFILE_PREFIX
4866 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4870 #ifdef MD_STARTFILE_PREFIX_1
4871 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
4875 /* If standard_startfile_prefix is relative, base it on
4876 standard_exec_prefix. This lets us move the installed tree
4877 as a unit. If GCC_EXEC_PREFIX is defined, base
4878 standard_startfile_prefix on that as well. */
4879 if (*standard_startfile_prefix == '/'
4880 || *standard_startfile_prefix == DIR_SEPARATOR
4881 || *standard_startfile_prefix == '$'
4883 /* Check for disk name on MS-DOS-based systems. */
4884 || (standard_startfile_prefix[1] == ':'
4885 && (standard_startfile_prefix[2] == DIR_SEPARATOR
4886 || standard_startfile_prefix[2] == '/'))
4889 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
4893 if (gcc_exec_prefix)
4894 add_prefix (&startfile_prefixes,
4895 concat (gcc_exec_prefix, machine_suffix,
4896 standard_startfile_prefix, NULL_PTR),
4897 NULL_PTR, 0, 0, NULL_PTR);
4898 add_prefix (&startfile_prefixes,
4899 concat (standard_exec_prefix,
4901 standard_startfile_prefix, NULL_PTR),
4902 NULL_PTR, 0, 0, NULL_PTR);
4905 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
4906 "BINUTILS", 0, 0, NULL_PTR);
4907 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
4908 "BINUTILS", 0, 0, NULL_PTR);
4909 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4910 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
4915 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4916 add_prefix (&startfile_prefixes,
4917 concat (gcc_exec_prefix, machine_suffix,
4918 standard_startfile_prefix, NULL_PTR),
4919 "BINUTILS", 0, 0, NULL_PTR);
4922 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4923 if (gcc_exec_prefix)
4925 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4926 + strlen (spec_version)
4927 + strlen (spec_machine) + 3);
4928 strcpy (temp, gcc_exec_prefix);
4929 strcat (temp, spec_machine);
4930 strcat (temp, dir_separator_str);
4931 strcat (temp, spec_version);
4932 strcat (temp, dir_separator_str);
4933 gcc_exec_prefix = temp;
4936 /* Now we have the specs.
4937 Set the `valid' bits for switches that match anything in any spec. */
4939 validate_all_switches ();
4941 /* Now that we have the switches and the specs, set
4942 the subdirectory based on the options. */
4943 set_multilib_dir ();
4945 /* Warn about any switches that no pass was interested in. */
4947 for (i = 0; (int)i < n_switches; i++)
4948 if (! switches[i].valid)
4949 error ("unrecognized option `-%s'", switches[i].part1);
4951 /* Obey some of the options. */
4953 if (print_search_dirs)
4955 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4956 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4957 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4961 if (print_file_name)
4963 printf ("%s\n", find_file (print_file_name));
4967 if (print_prog_name)
4969 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4970 printf ("%s\n", (newname ? newname : print_prog_name));
4974 if (print_multi_lib)
4976 print_multilib_info ();
4980 if (print_multi_directory)
4982 if (multilib_dir == NULL)
4985 printf ("%s\n", multilib_dir);
4989 if (print_help_list)
4995 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
4996 printf ("Please see the file BUGS (included with the sources) first.\n");
5001 /* We do not exit here. Instead we have created a fake input file
5002 called 'help-dummy' which needs to be compiled, and we pass this
5003 on the the various sub-processes, along with the --help switch. */
5010 /* compiler_version is truncated at the first space when initialized
5011 from version string, so truncate version_string at the first space
5012 before comparing. */
5013 for (n = 0; version_string[n]; n++)
5014 if (version_string[n] == ' ')
5017 if (! strncmp (version_string, compiler_version, n)
5018 && compiler_version[n] == 0)
5019 fprintf (stderr, "gcc version %s\n", version_string);
5021 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
5022 version_string, compiler_version);
5028 if (n_infiles == added_libraries)
5029 fatal ("No input files");
5031 /* Make a place to record the compiler output file names
5032 that correspond to the input files. */
5035 #ifdef LANG_SPECIFIC_DRIVER
5036 i += lang_specific_extra_outfiles;
5038 outfiles = (char **) xmalloc (i * sizeof (char *));
5039 bzero ((char *) outfiles, i * sizeof (char *));
5041 /* Record which files were specified explicitly as link input. */
5043 explicit_link_files = xmalloc (n_infiles);
5044 bzero (explicit_link_files, n_infiles);
5046 for (i = 0; (int)i < n_infiles; i++)
5048 register struct compiler *cp = 0;
5049 int this_file_error = 0;
5051 /* Tell do_spec what to substitute for %i. */
5053 input_filename = infiles[i].name;
5054 input_filename_length = strlen (input_filename);
5055 input_file_number = i;
5057 /* Use the same thing in %o, unless cp->spec says otherwise. */
5059 outfiles[i] = input_filename;
5061 /* Figure out which compiler from the file's suffix. */
5063 cp = lookup_compiler (infiles[i].name, input_filename_length,
5064 infiles[i].language);
5068 /* Ok, we found an applicable compiler. Run its spec. */
5069 /* First say how much of input_filename to substitute for %b */
5073 if (cp->spec[0][0] == '#')
5074 error ("%s: %s compiler not installed on this system",
5075 input_filename, &cp->spec[0][1]);
5077 input_basename = input_filename;
5078 for (p = input_filename; *p; p++)
5079 if (*p == '/' || *p == DIR_SEPARATOR)
5080 input_basename = p + 1;
5082 /* Find a suffix starting with the last period,
5083 and set basename_length to exclude that suffix. */
5084 basename_length = strlen (input_basename);
5085 p = input_basename + basename_length;
5086 while (p != input_basename && *p != '.') --p;
5087 if (*p == '.' && p != input_basename)
5089 basename_length = p - input_basename;
5090 input_suffix = p + 1;
5096 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5098 len += strlen (cp->spec[j]);
5100 p = (char *) xmalloc (len + 1);
5103 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5106 strcpy (p + len, cp->spec[j]);
5107 len += strlen (cp->spec[j]);
5110 value = do_spec (p);
5113 this_file_error = 1;
5116 /* If this file's name does not contain a recognized suffix,
5117 record it as explicit linker input. */
5120 explicit_link_files[i] = 1;
5122 /* Clear the delete-on-failure queue, deleting the files in it
5123 if this compilation failed. */
5125 if (this_file_error)
5127 delete_failure_queue ();
5130 /* If this compilation succeeded, don't delete those files later. */
5131 clear_failure_queue ();
5134 #ifdef LANG_SPECIFIC_DRIVER
5135 if (error_count == 0)
5137 /* Make sure INPUT_FILE_NUMBER points to first available open
5139 input_file_number = n_infiles;
5140 if (lang_specific_pre_link ())
5145 /* Run ld to link all the compiler output files. */
5147 if (error_count == 0)
5149 int tmp = execution_count;
5151 /* We'll use ld if we can't find collect2. */
5152 if (! strcmp (linker_name_spec, "collect2"))
5154 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5156 linker_name_spec = "ld";
5158 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5160 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
5161 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
5163 value = do_spec (link_command_spec);
5166 linker_was_run = (tmp != execution_count);
5169 /* Warn if a -B option was specified but the prefix was never used. */
5170 unused_prefix_warnings (&exec_prefixes);
5171 unused_prefix_warnings (&startfile_prefixes);
5173 /* If options said don't run linker,
5174 complain about input files to be given to the linker. */
5176 if (! linker_was_run && error_count == 0)
5177 for (i = 0; (int)i < n_infiles; i++)
5178 if (explicit_link_files[i])
5179 error ("%s: linker input file unused since linking not done",
5182 /* Delete some or all of the temporary files we made. */
5185 delete_failure_queue ();
5186 delete_temp_files ();
5188 if (print_help_list)
5190 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
5191 printf ("Please see the file BUGS (included with the sources) first.\n");
5194 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
5199 /* Find the proper compilation spec for the file name NAME,
5200 whose length is LENGTH. LANGUAGE is the specified language,
5201 or 0 if this file is to be passed to the linker. */
5203 static struct compiler *
5204 lookup_compiler (name, length, language)
5209 struct compiler *cp;
5211 /* If this was specified by the user to be a linker input, indicate that. */
5212 if (language != 0 && language[0] == '*')
5215 /* Otherwise, look for the language, if one is spec'd. */
5218 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5219 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5222 error ("language %s not recognized", language);
5226 /* Look for a suffix. */
5227 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5229 if (/* The suffix `-' matches only the file name `-'. */
5230 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5231 || (strlen (cp->suffix) < length
5232 /* See if the suffix matches the end of NAME. */
5234 && ((!strcmp (cp->suffix,
5235 name + length - strlen (cp->suffix))
5236 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5237 && !strcasecmp (cp->suffix,
5238 name + length - strlen (cp->suffix)))
5240 && !strcmp (cp->suffix,
5241 name + length - strlen (cp->suffix))
5245 if (cp->spec[0][0] == '@')
5247 struct compiler *new;
5249 /* An alias entry maps a suffix to a language.
5250 Search for the language; pass 0 for NAME and LENGTH
5251 to avoid infinite recursion if language not found.
5252 Construct the new compiler spec. */
5253 language = cp->spec[0] + 1;
5254 new = (struct compiler *) xmalloc (sizeof (struct compiler));
5255 new->suffix = cp->suffix;
5256 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
5257 (char *) new->spec, sizeof new->spec);
5261 /* A non-alias entry: return it. */
5273 register char *value = (char *) malloc (size);
5275 fatal ("virtual memory exhausted");
5280 xrealloc (ptr, size)
5284 register char *value = (char *) realloc (ptr, size);
5286 fatal ("virtual memory exhausted");
5290 /* This function is based on the one in libiberty. */
5293 concat VPROTO((char *first, ...))
5295 register int length;
5296 register char *newstr;
5304 /* First compute the size of the result and get sufficient memory. */
5306 VA_START (args, first);
5308 first = va_arg (args, char *);
5316 length += strlen (arg);
5317 arg = va_arg (args, char *);
5320 newstr = (char *) xmalloc (length + 1);
5323 /* Now copy the individual pieces to the result string. */
5325 VA_START (args, first);
5327 first = va_arg (args, char *);
5336 arg = va_arg (args, char *);
5345 save_string (s, len)
5349 register char *result = xmalloc (len + 1);
5351 bcopy (s, result, len);
5357 pfatal_with_name (name)
5360 fatal ("%s: %s", name, my_strerror (errno));
5364 perror_with_name (name)
5367 error ("%s: %s", name, my_strerror (errno));
5371 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5375 int save_errno = errno;
5379 /* Space for trailing '\0' is in %s. */
5380 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5381 sprintf (msg, errmsg_fmt, errmsg_arg);
5385 fatal ("%s: %s", errmsg_fmt, my_strerror (save_errno));
5388 /* More 'friendly' abort that prints the line and file.
5389 config.h can #define abort fancy_abort if you like that sort of thing. */
5394 fatal ("Internal gcc abort.");
5397 /* Output an error message and exit */
5400 fatal VPROTO((char *format, ...))
5407 VA_START (ap, format);
5410 format = va_arg (ap, char *);
5413 fprintf (stderr, "%s: ", programname);
5414 vfprintf (stderr, format, ap);
5416 fprintf (stderr, "\n");
5417 delete_temp_files ();
5422 error VPROTO((char *format, ...))
5429 VA_START (ap, format);
5432 format = va_arg (ap, char *);
5435 fprintf (stderr, "%s: ", programname);
5436 vfprintf (stderr, format, ap);
5439 fprintf (stderr, "\n");
5443 validate_all_switches ()
5445 struct compiler *comp;
5448 struct spec_list *spec;
5450 for (comp = compilers; comp->spec[0]; comp++)
5453 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5457 if (c == '%' && *p == '{')
5458 /* We have a switch spec. */
5459 validate_switches (p + 1);
5463 /* look through the linked list of specs read from the specs file */
5464 for (spec = specs; spec ; spec = spec->next)
5466 p = *(spec->ptr_spec);
5468 if (c == '%' && *p == '{')
5469 /* We have a switch spec. */
5470 validate_switches (p + 1);
5473 p = link_command_spec;
5475 if (c == '%' && *p == '{')
5476 /* We have a switch spec. */
5477 validate_switches (p + 1);
5480 /* Look at the switch-name that comes after START
5481 and mark as valid all supplied switches that match it. */
5484 validate_switches (start)
5487 register char *p = start;
5502 while (*p != ':' && *p != '}') p++;
5506 else if (p[-1] == '*')
5508 /* Mark all matching switches as valid. */
5510 for (i = 0; i < n_switches; i++)
5511 if (!strncmp (switches[i].part1, filter, p - filter))
5512 switches[i].valid = 1;
5516 /* Mark an exact matching switch as valid. */
5517 for (i = 0; i < n_switches; i++)
5519 if (!strncmp (switches[i].part1, filter, p - filter)
5520 && switches[i].part1[p - filter] == 0)
5521 switches[i].valid = 1;
5526 /* Check whether a particular argument was used. The first time we
5527 canonicalize the switches to keep only the ones we care about. */
5541 static struct mswitchstr *mswitches;
5542 static int n_mswitches;
5547 struct mswitchstr *matches;
5551 /* Break multilib_matches into the component strings of string and replacement
5553 for (q = multilib_matches; *q != '\0'; q++)
5557 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5559 q = multilib_matches;
5570 matches[i].len = q - matches[i].str;
5572 matches[i].replace = ++q;
5573 while (*q != ';' && *q != '\0')
5579 matches[i].rep_len = q - matches[i].replace;
5587 /* Now build a list of the replacement string for switches that we care
5588 about. Make sure we allocate at least one entry. This prevents
5589 xmalloc from calling fatal, and prevents us from re-executing this
5592 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5593 * (n_switches ? n_switches : 1));
5594 for (i = 0; i < n_switches; i++)
5596 int xlen = strlen (switches[i].part1);
5597 for (j = 0; j < cnt; j++)
5598 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5600 mswitches[n_mswitches].str = matches[j].replace;
5601 mswitches[n_mswitches].len = matches[j].rep_len;
5602 mswitches[n_mswitches].replace = (char *)0;
5603 mswitches[n_mswitches].rep_len = 0;
5610 for (i = 0; i < n_mswitches; i++)
5611 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5618 default_arg (p, len)
5624 for (start = multilib_defaults; *start != '\0'; start = end+1)
5626 while (*start == ' ' || *start == '\t')
5632 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5635 if ((end - start) == len && strncmp (p, start, len) == 0)
5645 /* Work out the subdirectory to use based on the
5646 options. The format of multilib_select is a list of elements.
5647 Each element is a subdirectory name followed by a list of options
5648 followed by a semicolon. gcc will consider each line in turn. If
5649 none of the options beginning with an exclamation point are
5650 present, and all of the other options are present, that
5651 subdirectory will be used. */
5656 char *p = multilib_select;
5658 char *this_path, *this_arg;
5664 /* Ignore newlines. */
5671 /* Get the initial path. */
5679 this_path_len = p - this_path;
5681 /* Check the arguments. */
5696 while (*p != ' ' && *p != ';')
5703 if (*this_arg != '!')
5711 /* If this is a default argument, we can just ignore it.
5712 This is true even if this_arg begins with '!'. Beginning
5713 with '!' does not mean that this argument is necessarily
5714 inappropriate for this library: it merely means that
5715 there is a more specific library which uses this
5716 argument. If this argument is a default, we need not
5717 consider that more specific library. */
5718 if (! default_arg (this_arg, p - this_arg))
5720 ok = used_arg (this_arg, p - this_arg);
5731 if (this_path_len != 1
5732 || this_path[0] != '.')
5734 multilib_dir = xmalloc (this_path_len + 1);
5735 strncpy (multilib_dir, this_path, this_path_len);
5736 multilib_dir[this_path_len] = '\0';
5745 /* Print out the multiple library subdirectory selection
5746 information. This prints out a series of lines. Each line looks
5747 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5748 required. Only the desired options are printed out, the negative
5749 matches. The options are print without a leading dash. There are
5750 no spaces to make it easy to use the information in the shell.
5751 Each subdirectory is printed only once. This assumes the ordering
5752 generated by the genmultilib script. */
5755 print_multilib_info ()
5757 char *p = multilib_select;
5758 char *last_path = 0, *this_path;
5760 int last_path_len = 0;
5764 /* Ignore newlines. */
5771 /* Get the initial path. */
5780 /* If this is a duplicate, skip it. */
5781 skip = (last_path != 0 && p - this_path == last_path_len
5782 && ! strncmp (last_path, this_path, last_path_len));
5784 last_path = this_path;
5785 last_path_len = p - this_path;
5787 /* If this directory requires any default arguments, we can skip
5788 it. We will already have printed a directory identical to
5789 this one which does not require that default argument. */
5807 while (*q != ' ' && *q != ';')
5815 && default_arg (arg, q - arg))
5830 for (p1 = last_path; p1 < p; p1++)
5849 use_arg = *p != '!';
5854 while (*p != ' ' && *p != ';')
5869 /* If there are extra options, print them now */
5870 if (multilib_extra && *multilib_extra)
5872 int print_at = TRUE;
5875 for (q = multilib_extra; *q != '\0'; q++)