1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-98, 1999 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". */
44 #define exit __posix_exit
47 #ifdef HAVE_SYS_RESOURCE_H
48 #include <sys/resource.h>
50 #ifdef NEED_DECLARATION_GETRUSAGE
51 extern int getrusage PROTO ((int, struct rusage *));
54 /* By default there is no special suffix for executables. */
55 #ifdef EXECUTABLE_SUFFIX
56 #define HAVE_EXECUTABLE_SUFFIX
58 #define EXECUTABLE_SUFFIX ""
61 /* By default, the suffix for object files is ".o". */
63 #define HAVE_OBJECT_SUFFIX
65 #define OBJECT_SUFFIX ".o"
68 /* By default, colon separates directories in a path. */
69 #ifndef PATH_SEPARATOR
70 #define PATH_SEPARATOR ':'
74 #define DIR_SEPARATOR '/'
78 /* FIXME: the location independence code for VMS is hairier than this,
79 and hasn't been written. */
85 /* Define IS_DIR_SEPARATOR. */
86 #ifndef DIR_SEPARATOR_2
87 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
88 #else /* DIR_SEPARATOR_2 */
89 # define IS_DIR_SEPARATOR(ch) \
90 (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
91 #endif /* DIR_SEPARATOR_2 */
93 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
95 #define obstack_chunk_alloc xmalloc
96 #define obstack_chunk_free free
98 #ifndef GET_ENV_PATH_LIST
99 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
103 #define kill(p,s) raise(s)
106 /* If a stage of compilation returns an exit status >= 1,
107 compilation of that file ceases. */
109 #define MIN_FATAL_STATUS 1
111 /* Flag saying to pass the greatest exit code returned by a sub-process
112 to the calling program. */
113 static int pass_exit_codes;
115 /* Flag saying to print the directories gcc will search through looking for
116 programs, libraries, etc. */
118 static int print_search_dirs;
120 /* Flag saying to print the full filename of this file
121 as found through our usual search mechanism. */
123 static const char *print_file_name = NULL;
125 /* As print_file_name, but search for executable file. */
127 static const char *print_prog_name = NULL;
129 /* Flag saying to print the relative path we'd use to
130 find libgcc.a given the current compiler flags. */
132 static int print_multi_directory;
134 /* Flag saying to print the list of subdirectories and
135 compiler flags used to select them in a standard form. */
137 static int print_multi_lib;
139 /* Flag saying to print the command line options understood by gcc and its
142 static int print_help_list;
144 /* Flag indicating whether we should print the command and arguments */
146 static int verbose_flag;
148 /* Flag indicating whether we should report subprocess execution times
149 (if this is supported by the system - see pexecute.c). */
151 static int report_times;
153 /* Nonzero means write "temp" files in source directory
154 and use the source file's name in them, and don't delete them. */
156 static int save_temps_flag;
158 /* The compiler version. */
160 static char *compiler_version;
162 /* The target version specified with -V */
164 static char *spec_version = DEFAULT_TARGET_VERSION;
166 /* The target machine specified with -b. */
168 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
170 /* Nonzero if cross-compiling.
171 When -b is used, the value comes from the `specs' file. */
174 static char *cross_compile = "1";
176 static char *cross_compile = "0";
179 /* The number of errors that have occurred; the link phase will not be
180 run if this is non-zero. */
181 static int error_count = 0;
183 /* Greatest exit code of sub-processes that has been encountered up to
185 static int greatest_status = 1;
187 /* This is the obstack which we use to allocate many strings. */
189 static struct obstack obstack;
191 /* This is the obstack to build an environment variable to pass to
192 collect2 that describes all of the relevant switches of what to
193 pass the compiler in building the list of pointers to constructors
196 static struct obstack collect_obstack;
198 /* These structs are used to collect resource usage information for
200 #ifdef HAVE_GETRUSAGE
201 static struct rusage rus, prus;
204 extern char *version_string;
206 /* Forward declaration for prototypes. */
209 static void init_spec PROTO((void));
211 static char **split_directories PROTO((const char *, int *));
212 static void free_split_directories PROTO((char **));
213 static char *make_relative_prefix PROTO((const char *, const char *, const char *));
215 static void read_specs PROTO((const char *, int));
216 static void set_spec PROTO((const char *, const char *));
217 static struct compiler *lookup_compiler PROTO((const char *, size_t, const char *));
218 static char *build_search_list PROTO((struct path_prefix *, const char *, int));
219 static void putenv_from_prefixes PROTO((struct path_prefix *, const char *));
220 static int access_check PROTO((const char *, int));
221 static char *find_a_file PROTO((struct path_prefix *, const char *, int));
222 static void add_prefix PROTO((struct path_prefix *, const char *,
223 const char *, int, int, int *));
224 static char *skip_whitespace PROTO((char *));
225 static void record_temp_file PROTO((const char *, int, int));
226 static void delete_if_ordinary PROTO((const char *));
227 static void delete_temp_files PROTO((void));
228 static void delete_failure_queue PROTO((void));
229 static void clear_failure_queue PROTO((void));
230 static int check_live_switch PROTO((int, int));
231 static const char *handle_braces PROTO((const char *));
232 static char *save_string PROTO((const char *, int));
233 static int do_spec_1 PROTO((const char *, int, const char *));
234 static const char *find_file PROTO((const char *));
235 static int is_directory PROTO((const char *, const char *, int));
236 static void validate_switches PROTO((const char *));
237 static void validate_all_switches PROTO((void));
238 static void give_switch PROTO((int, int, int));
239 static int used_arg PROTO((const char *, int));
240 static int default_arg PROTO((const char *, int));
241 static void set_multilib_dir PROTO((void));
242 static void print_multilib_info PROTO((void));
243 static void pfatal_with_name PROTO((const char *)) ATTRIBUTE_NORETURN;
244 static void perror_with_name PROTO((const char *));
245 static void pfatal_pexecute PROTO((const char *, const char *))
247 static void error PVPROTO((const char *, ...))
249 static void notice PVPROTO((const char *, ...))
251 static void display_help PROTO((void));
252 static void add_preprocessor_option PROTO ((const char *, int));
253 static void add_assembler_option PROTO ((const char *, int));
254 static void add_linker_option PROTO ((const char *, int));
255 static void process_command PROTO ((int, char **));
256 static int execute PROTO ((void));
257 static void unused_prefix_warnings PROTO ((struct path_prefix *));
258 static void clear_args PROTO ((void));
259 static void fatal_error PROTO ((int));
261 /* Specs are strings containing lines, each of which (if not blank)
262 is made up of a program name, and arguments separated by spaces.
263 The program name must be exact and start from root, since no path
264 is searched and it is unreliable to depend on the current working directory.
265 Redirection of input or output is not supported; the subprograms must
266 accept filenames saying what files to read and write.
268 In addition, the specs can contain %-sequences to substitute variable text
269 or for conditional text. Here is a table of all defined %-sequences.
270 Note that spaces are not generated automatically around the results of
271 expanding these sequences; therefore, you can concatenate them together
272 or with constant text in a single argument.
274 %% substitute one % into the program name or argument.
275 %i substitute the name of the input file being processed.
276 %b substitute the basename of the input file being processed.
277 This is the substring up to (and not including) the last period
278 and not including the directory.
280 substitute a file name that has suffix SUFFIX and is chosen
281 once per compilation, and mark the argument a la %d. To reduce
282 exposure to denial-of-service attacks, the file name is now
283 chosen in a way that is hard to predict even when previously
284 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
285 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
286 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
287 had been pre-processed. Previously, %g was simply substituted
288 with a file name chosen once per compilation, without regard
289 to any appended suffix (which was therefore treated just like
290 ordinary text), making such attacks more likely to succeed.
292 like %g, but generates a new temporary file name even if %uSUFFIX
295 substitutes the last file name generated with %uSUFFIX, generating a
296 new one if there is no such last file name. In the absence of any
297 %uSUFFIX, this is just like %gSUFFIX, except they don't share
298 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
299 would involve the generation of two distinct file names, one
300 for each `%g.s' and another for each `%U.s'. Previously, %U was
301 simply substituted with a file name chosen for the previous %u,
302 without regard to any appended suffix.
303 %d marks the argument containing or following the %d as a
304 temporary file name, so that that file will be deleted if CC exits
305 successfully. Unlike %g, this contributes no text to the argument.
306 %w marks the argument containing or following the %w as the
307 "output file" of this compilation. This puts the argument
308 into the sequence of arguments that %o will substitute later.
310 like %{...} but mark last argument supplied within
311 as a file to be deleted on failure.
312 %o substitutes the names of all the output files, with spaces
313 automatically placed around them. You should write spaces
314 around the %o as well or the results are undefined.
315 %o is for use in the specs for running the linker.
316 Input files whose names have no recognized suffix are not compiled
317 at all, but they are included among the output files, so they will
319 %O substitutes the suffix for object files. Note that this is
320 handled specially when it immediately follows %g, %u, or %U
321 (with or without a suffix argument) because of the need for
322 those to form complete file names. The handling is such that
323 %O is treated exactly as if it had already been substituted,
324 except that %g, %u, and %U do not currently support additional
325 SUFFIX characters following %O as they would following, for
327 %p substitutes the standard macro predefinitions for the
328 current target machine. Use this when running cpp.
329 %P like %p, but puts `__' before and after the name of each macro.
330 (Except macros that already have __.)
332 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
333 %s current argument is the name of a library or startup file of some sort.
334 Search for that file in a standard list of directories
335 and substitute the full name found.
336 %eSTR Print STR as an error message. STR is terminated by a newline.
337 Use this when inconsistent options are detected.
338 %x{OPTION} Accumulate an option for %X.
339 %X Output the accumulated linker options specified by compilations.
340 %Y Output the accumulated assembler options specified by compilations.
341 %Z Output the accumulated preprocessor options specified by compilations.
342 %v1 Substitute the major version number of GCC.
343 (For version 2.5.n, this is 2.)
344 %v2 Substitute the minor version number of GCC.
345 (For version 2.5.n, this is 5.)
346 %a process ASM_SPEC as a spec.
347 This allows config.h to specify part of the spec for running as.
348 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
349 used here. This can be used to run a post-processor after the
350 assembler has done its job.
351 %D Dump out a -L option for each directory in startfile_prefixes.
352 If multilib_dir is set, extra entries are generated with it affixed.
353 %l process LINK_SPEC as a spec.
354 %L process LIB_SPEC as a spec.
355 %G process LIBGCC_SPEC as a spec.
356 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
357 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
358 %c process SIGNED_CHAR_SPEC as a spec.
359 %C process CPP_SPEC as a spec. A capital C is actually used here.
360 %1 process CC1_SPEC as a spec.
361 %2 process CC1PLUS_SPEC as a spec.
362 %| output "-" if the input for the current command is coming from a pipe.
363 %* substitute the variable part of a matched option. (See below.)
364 Note that each comma in the substituted string is replaced by
366 %{S} substitutes the -S switch, if that switch was given to CC.
367 If that switch was not specified, this substitutes nothing.
368 Here S is a metasyntactic variable.
369 %{S*} substitutes all the switches specified to CC whose names start
370 with -S. This is used for -o, -D, -I, etc; switches that take
371 arguments. CC considers `-o foo' as being one switch whose
372 name starts with `o'. %{o*} would substitute this text,
373 including the space; thus, two arguments would be generated.
374 %{^S*} likewise, but don't put a blank between a switch and any args.
375 %{S*:X} substitutes X if one or more switches whose names start with -S are
376 specified to CC. Note that the tail part of the -S option
377 (i.e. the part matched by the `*') will be substituted for each
378 occurrence of %* within X.
379 %{S:X} substitutes X, but only if the -S switch was given to CC.
380 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
381 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
382 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
383 %{.S:X} substitutes X, but only if processing a file with suffix S.
384 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
385 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
386 combined with ! and . as above binding stronger than the OR.
387 %(Spec) processes a specification defined in a specs file as *Spec:
388 %[Spec] as above, but put __ around -D arguments
390 The conditional text X in a %{S:X} or %{!S:X} construct may contain
391 other nested % constructs or spaces, or even newlines. They are
392 processed as usual, as described above.
394 The -O, -f, -m, and -W switches are handled specifically in these
395 constructs. If another value of -O or the negated form of a -f, -m, or
396 -W switch is found later in the command line, the earlier switch
397 value is ignored, except with {S*} where S is just one letter; this
398 passes all matching options.
400 The character | at the beginning of the predicate text is used to indicate
401 that a command should be piped to the following command, but only if -pipe
404 Note that it is built into CC which switches take arguments and which
405 do not. You might think it would be useful to generalize this to
406 allow each compiler's spec to say which switches take arguments. But
407 this cannot be done in a consistent fashion. CC cannot even decide
408 which input files have been specified without knowing which switches
409 take arguments, and it must know which input files to compile in order
410 to tell which compilers to run.
412 CC also knows implicitly that arguments starting in `-l' are to be
413 treated as compiler output files, and passed to the linker in their
414 proper position among the other output files. */
416 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
418 /* config.h can define ASM_SPEC to provide extra args to the assembler
419 or extra switch-translations. */
424 /* config.h can define ASM_FINAL_SPEC to run a post processor after
425 the assembler has run. */
426 #ifndef ASM_FINAL_SPEC
427 #define ASM_FINAL_SPEC ""
430 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
431 or extra switch-translations. */
436 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
437 or extra switch-translations. */
442 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
443 or extra switch-translations. */
445 #define CC1PLUS_SPEC ""
448 /* config.h can define LINK_SPEC to provide extra args to the linker
449 or extra switch-translations. */
454 /* config.h can define LIB_SPEC to override the default libraries. */
456 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
459 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
462 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
463 /* Have gcc do the search for libgcc.a. */
464 #define LIBGCC_SPEC "libgcc.a%s"
466 #define LIBGCC_SPEC "-lgcc"
470 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
471 #ifndef STARTFILE_SPEC
472 #define STARTFILE_SPEC \
473 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
476 /* config.h can define SWITCHES_NEED_SPACES to control which options
477 require spaces between the option and the argument. */
478 #ifndef SWITCHES_NEED_SPACES
479 #define SWITCHES_NEED_SPACES ""
482 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
484 #define ENDFILE_SPEC ""
487 /* This spec is used for telling cpp whether char is signed or not. */
488 #ifndef SIGNED_CHAR_SPEC
489 /* Use #if rather than ?:
490 because MIPS C compiler rejects like ?: in initializers. */
491 #if DEFAULT_SIGNED_CHAR
492 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
494 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
499 #define LINKER_NAME "collect2"
502 static char *cpp_spec = CPP_SPEC;
503 static char *cpp_predefines = CPP_PREDEFINES;
504 static char *cc1_spec = CC1_SPEC;
505 static char *cc1plus_spec = CC1PLUS_SPEC;
506 static char *signed_char_spec = SIGNED_CHAR_SPEC;
507 static char *asm_spec = ASM_SPEC;
508 static char *asm_final_spec = ASM_FINAL_SPEC;
509 static char *link_spec = LINK_SPEC;
510 static char *lib_spec = LIB_SPEC;
511 static char *libgcc_spec = LIBGCC_SPEC;
512 static char *endfile_spec = ENDFILE_SPEC;
513 static char *startfile_spec = STARTFILE_SPEC;
514 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
515 static char *linker_name_spec = LINKER_NAME;
517 /* Some compilers have limits on line lengths, and the multilib_select
518 and/or multilib_matches strings can be very long, so we build them at
520 static struct obstack multilib_obstack;
521 static char *multilib_select;
522 static char *multilib_matches;
523 static char *multilib_defaults;
524 #include "multilib.h"
526 /* Check whether a particular argument is a default argument. */
528 #ifndef MULTILIB_DEFAULTS
529 #define MULTILIB_DEFAULTS { "" }
532 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
535 struct user_specs *next;
536 const char *filename;
539 static struct user_specs *user_specs_head, *user_specs_tail;
541 /* This defines which switch letters take arguments. */
543 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
544 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
545 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
546 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
547 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
548 || (CHAR) == 'B' || (CHAR) == 'b')
550 #ifndef SWITCH_TAKES_ARG
551 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
554 /* This defines which multi-letter switches take arguments. */
556 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
557 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
558 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
559 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
560 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
561 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
562 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
564 #ifndef WORD_SWITCH_TAKES_ARG
565 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
569 #ifdef HAVE_EXECUTABLE_SUFFIX
570 /* This defines which switches stop a full compilation. */
571 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
572 ((CHAR) == 'c' || (CHAR) == 'S')
574 #ifndef SWITCH_CURTAILS_COMPILATION
575 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
576 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
580 /* Record the mapping from file suffixes for compilation specs. */
584 const char *suffix; /* Use this compiler for input files
585 whose names end in this suffix. */
587 const char *spec[4]; /* To use this compiler, concatenate these
588 specs and pass to do_spec. */
591 /* Pointer to a vector of `struct compiler' that gives the spec for
592 compiling a file, based on its suffix.
593 A file that does not end in any of these suffixes will be passed
594 unchanged to the loader and nothing else will be done to it.
596 An entry containing two 0s is used to terminate the vector.
598 If multiple entries match a file, the last matching one is used. */
600 static struct compiler *compilers;
602 /* Number of entries in `compilers', not counting the null terminator. */
604 static int n_compilers;
606 /* The default list of file name suffixes and their compilation specs. */
608 static struct compiler default_compilers[] =
610 /* Add lists of suffixes of known languages here. If those languages
611 were not present when we built the driver, we will hit these copies
612 and be given a more meaningful error than "file not used since
613 linking is not done". */
614 {".m", {"#Objective-C"}},
615 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}},
616 {".c++", {"#C++"}}, {".C", {"#C++"}},
617 {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
618 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
619 {".fpp", {"#Fortran"}},
620 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
621 /* Next come the entries for C. */
626 "%{E|M|MM:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
627 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
628 %{C:%{!E:%eGNU C does not support -C without using -E}}\
629 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
630 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
631 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
632 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
633 %{ffast-math:-D__FAST_MATH__}\
634 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
635 %{traditional} %{ftraditional:-traditional}\
636 %{traditional-cpp:-traditional}\
637 %{fleading-underscore} %{fno-leading-underscore}\
638 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
639 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
640 %{!E:%{!M:%{!MM:cc1 %i %1 \
641 %{std*} %{nostdinc*} %{A*} %{I*} %I\
642 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
643 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
644 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
645 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
646 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
647 %{ffast-math:-D__FAST_MATH__}\
648 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
649 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
650 %{H} %C %{D*} %{U*} %{i*} %Z\
651 %{ftraditional:-traditional}\
652 %{traditional-cpp:-traditional}\
653 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
654 %{aux-info*} %{Qn:-fno-ident}\
656 %{g*} %{O*} %{W*} %{w} %{pedantic*}\
657 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
658 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
660 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
661 %{!pipe:%g.s} %A\n }}}}"
662 #else /* ! USE_CPPLIB */
663 "cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
664 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
665 %{C:%{!E:%eGNU C does not support -C without using -E}}\
666 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
667 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
668 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
669 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
670 %{ffast-math:-D__FAST_MATH__}\
671 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
672 %{traditional} %{ftraditional:-traditional}\
673 %{traditional-cpp:-traditional}\
674 %{fleading-underscore} %{fno-leading-underscore}\
675 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
676 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
677 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
678 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
679 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
680 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
681 %{aux-info*} %{Qn:-fno-ident}\
683 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
684 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
686 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
687 %{!pipe:%g.s} %A\n }}}}"
688 #endif /* ! USE_CPPLIB */
691 {"%{E:cpp -lang-c %{ansi:-std=c89} %{std*} %{nostdinc*}\
692 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
693 %{C:%{!E:%eGNU C does not support -C without using -E}}\
694 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
695 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
696 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
697 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
698 %{ffast-math:-D__FAST_MATH__}\
699 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
700 %{traditional} %{ftraditional:-traditional}\
701 %{traditional-cpp:-traditional}\
702 %{fleading-underscore} %{fno-leading-underscore}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
705 %{!E:%e-E required when input is from standard input}"}},
706 {".h", {"@c-header"}},
708 {"%{!E:%eCompilation of header file requested} \
709 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
710 %{C:%{!E:%eGNU C does not support -C without using -E}}\
711 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
712 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2}\
713 %{!undef:%{!std=*:%p}%{std=gnu*:%p} %P} %{trigraphs}\
714 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
715 %{ffast-math:-D__FAST_MATH__}\
716 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
717 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
718 %{traditional} %{ftraditional:-traditional}\
719 %{traditional-cpp:-traditional}\
720 %{fleading-underscore} %{fno-leading-underscore}\
721 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
723 {".i", {"@cpp-output"}},
725 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
726 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*}\
727 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
728 %{aux-info*} %{Qn:-fno-ident} -fpreprocessed\
729 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
730 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
732 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
733 %{!pipe:%g.s} %A\n }}}}"}},
734 {".s", {"@assembler"}},
736 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
737 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
739 {".S", {"@assembler-with-cpp"}},
740 {"@assembler-with-cpp",
741 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
742 %{C:%{!E:%eGNU C does not support -C without using -E}}\
743 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
744 -$ %{!undef:%p %P} -D__ASSEMBLER__ \
745 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
746 %{ffast-math:-D__FAST_MATH__}\
747 %{fshort-wchar:-D__WCHAR_TYPE__=short\\ unsigned\\ int}\
748 %{traditional} %{ftraditional:-traditional}\
749 %{traditional-cpp:-traditional}\
750 %{fleading-underscore} %{fno-leading-underscore}\
751 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
752 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
753 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
754 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
755 %{!pipe:%g.s} %A\n }}}}"}},
757 /* Mark end of table */
761 /* Number of elements in default_compilers, not counting the terminator. */
763 static int n_default_compilers
764 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
766 /* Here is the spec for running the linker, after compiling all files. */
768 /* -u* was put back because both BSD and SysV seem to support it. */
769 /* %{static:} simply prevents an error message if the target machine
770 doesn't handle -static. */
771 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
772 scripts which exist in user specified directories, or in standard
774 #ifdef LINK_COMMAND_SPEC
775 /* Provide option to override link_command_spec from machine specific
776 configuration files. */
777 static const char *link_command_spec =
780 #ifdef LINK_LIBGCC_SPECIAL
781 /* Don't generate -L options. */
782 static const char *link_command_spec = "\
784 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
785 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
786 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
788 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
789 {"--pass-exit-codes", "-pass-exit-codes", 0},
790 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
795 static const char *link_command_spec = "\
797 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
798 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
799 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
800 %{static:} %{L*} %D %o\
801 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
802 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
808 /* A vector of options to give to the linker.
809 These options are accumulated by %x,
810 and substituted into the linker command with %X. */
811 static int n_linker_options;
812 static char **linker_options;
814 /* A vector of options to give to the assembler.
815 These options are accumulated by -Wa,
816 and substituted into the assembler command with %Y. */
817 static int n_assembler_options;
818 static char **assembler_options;
820 /* A vector of options to give to the preprocessor.
821 These options are accumulated by -Wp,
822 and substituted into the preprocessor command with %Z. */
823 static int n_preprocessor_options;
824 static char **preprocessor_options;
826 /* Define how to map long options into short ones. */
828 /* This structure describes one mapping. */
831 /* The long option's name. */
833 /* The equivalent short option. */
834 const char *equivalent;
835 /* Argument info. A string of flag chars; NULL equals no options.
836 a => argument required.
837 o => argument optional.
838 j => join argument to equivalent, making one word.
839 * => require other text after NAME as an argument. */
840 const char *arg_info;
843 /* This is the table of mappings. Mappings are tried sequentially
844 for each option encountered; the first one that matches, wins. */
846 struct option_map option_map[] =
848 {"--all-warnings", "-Wall", 0},
849 {"--ansi", "-ansi", 0},
850 {"--assemble", "-S", 0},
851 {"--assert", "-A", "a"},
852 {"--classpath", "-fclasspath=", "aj"},
853 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
854 {"--comments", "-C", 0},
855 {"--compile", "-c", 0},
856 {"--debug", "-g", "oj"},
857 {"--define-macro", "-D", "aj"},
858 {"--dependencies", "-M", 0},
859 {"--dump", "-d", "a"},
860 {"--dumpbase", "-dumpbase", "a"},
861 {"--entry", "-e", 0},
862 {"--extra-warnings", "-W", 0},
863 {"--for-assembler", "-Wa", "a"},
864 {"--for-linker", "-Xlinker", "a"},
865 {"--force-link", "-u", "a"},
866 {"--imacros", "-imacros", "a"},
867 {"--include", "-include", "a"},
868 {"--include-barrier", "-I-", 0},
869 {"--include-directory", "-I", "aj"},
870 {"--include-directory-after", "-idirafter", "a"},
871 {"--include-prefix", "-iprefix", "a"},
872 {"--include-with-prefix", "-iwithprefix", "a"},
873 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
874 {"--include-with-prefix-after", "-iwithprefix", "a"},
875 {"--language", "-x", "a"},
876 {"--library-directory", "-L", "a"},
877 {"--machine", "-m", "aj"},
878 {"--machine-", "-m", "*j"},
879 {"--no-line-commands", "-P", 0},
880 {"--no-precompiled-includes", "-noprecomp", 0},
881 {"--no-standard-includes", "-nostdinc", 0},
882 {"--no-standard-libraries", "-nostdlib", 0},
883 {"--no-warnings", "-w", 0},
884 {"--optimize", "-O", "oj"},
885 {"--output", "-o", "a"},
886 {"--output-class-directory", "-foutput-class-dir=", "ja"},
887 {"--pedantic", "-pedantic", 0},
888 {"--pedantic-errors", "-pedantic-errors", 0},
889 {"--pipe", "-pipe", 0},
890 {"--prefix", "-B", "a"},
891 {"--preprocess", "-E", 0},
892 {"--print-search-dirs", "-print-search-dirs", 0},
893 {"--print-file-name", "-print-file-name=", "aj"},
894 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
895 {"--print-missing-file-dependencies", "-MG", 0},
896 {"--print-multi-lib", "-print-multi-lib", 0},
897 {"--print-multi-directory", "-print-multi-directory", 0},
898 {"--print-prog-name", "-print-prog-name=", "aj"},
899 {"--profile", "-p", 0},
900 {"--profile-blocks", "-a", 0},
901 {"--quiet", "-q", 0},
902 {"--save-temps", "-save-temps", 0},
903 {"--shared", "-shared", 0},
904 {"--silent", "-q", 0},
905 {"--specs", "-specs=", "aj"},
906 {"--static", "-static", 0},
907 {"--std", "-std=", "aj"},
908 {"--symbolic", "-symbolic", 0},
909 {"--target", "-b", "a"},
910 {"--time", "-time", 0},
911 {"--trace-includes", "-H", 0},
912 {"--traditional", "-traditional", 0},
913 {"--traditional-cpp", "-traditional-cpp", 0},
914 {"--trigraphs", "-trigraphs", 0},
915 {"--undefine-macro", "-U", "aj"},
916 {"--use-version", "-V", "a"},
917 {"--user-dependencies", "-MM", 0},
918 {"--verbose", "-v", 0},
919 {"--version", "-dumpversion", 0},
920 {"--warn-", "-W", "*j"},
921 {"--write-dependencies", "-MD", 0},
922 {"--write-user-dependencies", "-MMD", 0},
926 /* Translate the options described by *ARGCP and *ARGVP.
927 Make a new vector and store it back in *ARGVP,
928 and store its length in *ARGVC. */
931 translate_options (argcp, argvp)
937 const char **argv = *argvp;
939 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
943 newv[newindex++] = argv[i++];
947 /* Translate -- options. */
948 if (argv[i][0] == '-' && argv[i][1] == '-')
951 /* Find a mapping that applies to this option. */
952 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
954 size_t optlen = strlen (option_map[j].name);
955 size_t arglen = strlen (argv[i]);
956 size_t complen = arglen > optlen ? optlen : arglen;
957 const char *arginfo = option_map[j].arg_info;
962 if (!strncmp (argv[i], option_map[j].name, complen))
970 k < sizeof (option_map) / sizeof (option_map[0]);
972 if (strlen (option_map[k].name) >= arglen
973 && !strncmp (argv[i], option_map[k].name, arglen))
975 error ("Ambiguous abbreviation %s", argv[i]);
979 if (k != sizeof (option_map) / sizeof (option_map[0]))
985 /* If the option has an argument, accept that. */
986 if (argv[i][optlen] == '=')
987 arg = argv[i] + optlen + 1;
989 /* If this mapping requires extra text at end of name,
990 accept that as "argument". */
991 else if (index (arginfo, '*') != 0)
992 arg = argv[i] + optlen;
994 /* Otherwise, extra text at end means mismatch.
995 Try other mappings. */
1000 else if (index (arginfo, '*') != 0)
1002 error ("Incomplete `%s' option", option_map[j].name);
1006 /* Handle arguments. */
1007 if (index (arginfo, 'a') != 0)
1013 error ("Missing argument to `%s' option",
1014 option_map[j].name);
1021 else if (index (arginfo, '*') != 0)
1023 else if (index (arginfo, 'o') == 0)
1026 error ("Extraneous argument to `%s' option",
1027 option_map[j].name);
1031 /* Store the translation as one argv elt or as two. */
1032 if (arg != 0 && index (arginfo, 'j') != 0)
1033 newv[newindex++] = concat (option_map[j].equivalent, arg,
1037 newv[newindex++] = option_map[j].equivalent;
1038 newv[newindex++] = arg;
1041 newv[newindex++] = option_map[j].equivalent;
1049 /* Handle old-fashioned options--just copy them through,
1050 with their arguments. */
1051 else if (argv[i][0] == '-')
1053 const char *p = argv[i] + 1;
1057 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1058 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1059 else if (WORD_SWITCH_TAKES_ARG (p))
1060 nskip += WORD_SWITCH_TAKES_ARG (p);
1061 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1064 else if (! strcmp (p, "Xlinker"))
1067 /* Watch out for an option at the end of the command line that
1068 is missing arguments, and avoid skipping past the end of the
1070 if (nskip + i > argc)
1075 newv[newindex++] = argv[i++];
1080 /* Ordinary operands, or +e options. */
1081 newv[newindex++] = argv[i++];
1096 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1097 be considered whitespace. */
1098 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1100 else if (*p == '\n' || *p == ' ' || *p == '\t')
1104 while (*p != '\n') p++;
1114 /* Structure to keep track of the specs that have been defined so far.
1115 These are accessed using %(specname) or %[specname] in a compiler
1120 /* The following 2 fields must be first */
1121 /* to allow EXTRA_SPECS to be initialized */
1122 char *name; /* name of the spec. */
1123 char *ptr; /* available ptr if no static pointer */
1125 /* The following fields are not initialized */
1126 /* by EXTRA_SPECS */
1127 char **ptr_spec; /* pointer to the spec itself. */
1128 struct spec_list *next; /* Next spec in linked list. */
1129 int name_len; /* length of the name */
1130 int alloc_p; /* whether string was allocated */
1133 #define INIT_STATIC_SPEC(NAME,PTR) \
1134 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1136 /* List of statically defined specs */
1137 static struct spec_list static_specs[] = {
1138 INIT_STATIC_SPEC ("asm", &asm_spec),
1139 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1140 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1141 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1142 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1143 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1144 INIT_STATIC_SPEC ("link", &link_spec),
1145 INIT_STATIC_SPEC ("lib", &lib_spec),
1146 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1147 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1148 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1149 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1150 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1151 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1152 INIT_STATIC_SPEC ("version", &compiler_version),
1153 INIT_STATIC_SPEC ("multilib", &multilib_select),
1154 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1155 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1156 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1157 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1160 #ifdef EXTRA_SPECS /* additional specs needed */
1161 /* Structure to keep track of just the first two args of a spec_list.
1162 That is all that the EXTRA_SPECS macro gives us. */
1169 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1170 static struct spec_list * extra_specs = (struct spec_list *)0;
1173 /* List of dynamically allocates specs that have been defined so far. */
1175 static struct spec_list *specs = (struct spec_list *)0;
1178 /* Initialize the specs lookup routines. */
1183 struct spec_list *next = (struct spec_list *)0;
1184 struct spec_list *sl = (struct spec_list *)0;
1188 return; /* already initialized */
1191 notice ("Using builtin specs.\n");
1194 extra_specs = (struct spec_list *)
1195 xcalloc (sizeof(struct spec_list),
1196 (sizeof(extra_specs_1)/sizeof(extra_specs_1[0])));
1198 for (i = (sizeof(extra_specs_1) / sizeof(extra_specs_1[0])) - 1; i >= 0; i--)
1200 sl = &extra_specs[i];
1201 sl->name = extra_specs_1[i].name;
1202 sl->ptr = extra_specs_1[i].ptr;
1204 sl->name_len = strlen (sl->name);
1205 sl->ptr_spec = &sl->ptr;
1210 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1212 sl = &static_specs[i];
1221 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1222 removed; If the spec starts with a + then SPEC is added to the end of the
1226 set_spec (name, spec)
1230 struct spec_list *sl;
1232 int name_len = strlen (name);
1235 /* If this is the first call, initialize the statically allocated specs */
1238 struct spec_list *next = (struct spec_list *)0;
1239 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1242 sl = &static_specs[i];
1249 /* See if the spec already exists */
1250 for (sl = specs; sl; sl = sl->next)
1251 if (name_len == sl->name_len && !strcmp (sl->name, name))
1256 /* Not found - make it */
1257 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1258 sl->name = xstrdup (name);
1259 sl->name_len = name_len;
1260 sl->ptr_spec = &sl->ptr;
1262 *(sl->ptr_spec) = "";
1267 old_spec = *(sl->ptr_spec);
1268 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1269 ? concat (old_spec, spec + 1, NULL_PTR)
1274 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1277 /* Free the old spec */
1278 if (old_spec && sl->alloc_p)
1284 /* Accumulate a command (program name and args), and run it. */
1286 /* Vector of pointers to arguments in the current line of specifications. */
1288 static char **argbuf;
1290 /* Number of elements allocated in argbuf. */
1292 static int argbuf_length;
1294 /* Number of elements in argbuf currently in use (containing args). */
1296 static int argbuf_index;
1298 /* We want this on by default all the time now. */
1299 #define MKTEMP_EACH_FILE
1301 #ifdef MKTEMP_EACH_FILE
1303 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1306 static struct temp_name {
1307 const char *suffix; /* suffix associated with the code. */
1308 int length; /* strlen (suffix). */
1309 int unique; /* Indicates whether %g or %u/%U was used. */
1310 const char *filename; /* associated filename. */
1311 int filename_length; /* strlen (filename). */
1312 struct temp_name *next;
1317 /* Number of commands executed so far. */
1319 static int execution_count;
1321 /* Number of commands that exited with a signal. */
1323 static int signal_count;
1325 /* Name with which this program was invoked. */
1327 static const char *programname;
1329 /* Structures to keep track of prefixes to try when looking for files. */
1333 char *prefix; /* String to prepend to the path. */
1334 struct prefix_list *next; /* Next in linked list. */
1335 int require_machine_suffix; /* Don't use without machine_suffix. */
1336 /* 2 means try both machine_suffix and just_machine_suffix. */
1337 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1342 struct prefix_list *plist; /* List of prefixes to try */
1343 int max_len; /* Max length of a prefix in PLIST */
1344 const char *name; /* Name of this list (used in config stuff) */
1347 /* List of prefixes to try when looking for executables. */
1349 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1351 /* List of prefixes to try when looking for startup (crt0) files. */
1353 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1355 /* List of prefixes to try when looking for include files. */
1357 static struct path_prefix include_prefixes = { 0, 0, "include" };
1359 /* Suffix to attach to directories searched for commands.
1360 This looks like `MACHINE/VERSION/'. */
1362 static const char *machine_suffix = 0;
1364 /* Suffix to attach to directories searched for commands.
1365 This is just `MACHINE/'. */
1367 static const char *just_machine_suffix = 0;
1369 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1371 static const char *gcc_exec_prefix;
1373 /* Default prefixes to attach to command names. */
1375 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1376 #undef MD_EXEC_PREFIX
1377 #undef MD_STARTFILE_PREFIX
1378 #undef MD_STARTFILE_PREFIX_1
1381 #ifndef STANDARD_EXEC_PREFIX
1382 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1383 #endif /* !defined STANDARD_EXEC_PREFIX */
1385 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1386 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1387 #ifdef MD_EXEC_PREFIX
1388 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1391 #ifndef STANDARD_STARTFILE_PREFIX
1392 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1393 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1395 #ifdef MD_STARTFILE_PREFIX
1396 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1398 #ifdef MD_STARTFILE_PREFIX_1
1399 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1401 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1402 static const char *standard_startfile_prefix_1 = "/lib/";
1403 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1405 #ifndef TOOLDIR_BASE_PREFIX
1406 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1408 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1409 static const char *tooldir_prefix;
1411 #ifndef STANDARD_BINDIR_PREFIX
1412 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1414 static char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1416 /* Subdirectory to use for locating libraries. Set by
1417 set_multilib_dir based on the compilation options. */
1419 static const char *multilib_dir;
1421 /* Clear out the vector of arguments (after a command is executed). */
1429 /* Add one argument to the vector at the end.
1430 This is done when a space is seen or at the end of the line.
1431 If DELETE_ALWAYS is nonzero, the arg is a filename
1432 and the file should be deleted eventually.
1433 If DELETE_FAILURE is nonzero, the arg is a filename
1434 and the file should be deleted if this compilation fails. */
1437 store_arg (arg, delete_always, delete_failure)
1439 int delete_always, delete_failure;
1441 if (argbuf_index + 1 == argbuf_length)
1443 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1445 argbuf[argbuf_index++] = arg;
1446 argbuf[argbuf_index] = 0;
1448 if (delete_always || delete_failure)
1449 record_temp_file (arg, delete_always, delete_failure);
1452 /* Read compilation specs from a file named FILENAME,
1453 replacing the default ones.
1455 A suffix which starts with `*' is a definition for
1456 one of the machine-specific sub-specs. The "suffix" should be
1457 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1458 The corresponding spec is stored in asm_spec, etc.,
1459 rather than in the `compilers' vector.
1461 Anything invalid in the file is a fatal error. */
1464 read_specs (filename, main_p)
1465 const char *filename;
1470 struct stat statbuf;
1475 notice ("Reading specs from %s\n", filename);
1477 /* Open and stat the file. */
1478 desc = open (filename, O_RDONLY, 0);
1480 pfatal_with_name (filename);
1481 if (stat (filename, &statbuf) < 0)
1482 pfatal_with_name (filename);
1484 /* Read contents of file into BUFFER. */
1485 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1486 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1488 pfatal_with_name (filename);
1489 buffer[readlen] = 0;
1492 /* Scan BUFFER for specs, putting them in the vector. */
1498 char *in, *out, *p1, *p2, *p3;
1500 /* Advance P in BUFFER to the next nonblank nocomment line. */
1501 p = skip_whitespace (p);
1505 /* Is this a special command that starts with '%'? */
1506 /* Don't allow this for the main specs file, since it would
1507 encourage people to overwrite it. */
1508 if (*p == '%' && !main_p)
1511 while (*p && *p != '\n')
1514 p++; /* Skip '\n' */
1516 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1517 && (p1[sizeof "%include" - 1] == ' '
1518 || p1[sizeof "%include" - 1] == '\t'))
1522 p1 += sizeof ("%include");
1523 while (*p1 == ' ' || *p1 == '\t')
1526 if (*p1++ != '<' || p[-2] != '>')
1527 fatal ("specs %%include syntax malformed after %ld characters",
1528 (long) (p1 - buffer + 1));
1531 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1532 read_specs (new_filename ? new_filename : p1, FALSE);
1535 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1536 && (p1[sizeof "%include_noerr" - 1] == ' '
1537 || p1[sizeof "%include_noerr" - 1] == '\t'))
1541 p1 += sizeof "%include_noerr";
1542 while (*p1 == ' ' || *p1 == '\t') p1++;
1544 if (*p1++ != '<' || p[-2] != '>')
1545 fatal ("specs %%include syntax malformed after %ld characters",
1546 (long) (p1 - buffer + 1));
1549 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1551 read_specs (new_filename, FALSE);
1552 else if (verbose_flag)
1553 notice ("Could not find specs file %s\n", p1);
1556 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1557 && (p1[sizeof "%rename" - 1] == ' '
1558 || p1[sizeof "%rename" - 1] == '\t'))
1561 struct spec_list *sl;
1563 /* Get original name */
1564 p1 += sizeof "%rename";
1565 while (*p1 == ' ' || *p1 == '\t')
1568 if (! ISALPHA ((unsigned char)*p1))
1569 fatal ("specs %%rename syntax malformed after %ld characters",
1570 (long) (p1 - buffer));
1573 while (*p2 && !ISSPACE ((unsigned char)*p2))
1576 if (*p2 != ' ' && *p2 != '\t')
1577 fatal ("specs %%rename syntax malformed after %ld characters",
1578 (long) (p2 - buffer));
1582 while (*p2 == ' ' || *p2 == '\t')
1585 if (! ISALPHA ((unsigned char)*p2))
1586 fatal ("specs %%rename syntax malformed after %ld characters",
1587 (long) (p2 - buffer));
1589 /* Get new spec name */
1591 while (*p3 && !ISSPACE ((unsigned char)*p3))
1595 fatal ("specs %%rename syntax malformed after %ld characters",
1596 (long) (p3 - buffer));
1599 for (sl = specs; sl; sl = sl->next)
1600 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1604 fatal ("specs %s spec was not found to be renamed", p1);
1606 if (strcmp (p1, p2) == 0)
1611 notice ("rename spec %s to %s\n", p1, p2);
1613 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1617 set_spec (p2, *(sl->ptr_spec));
1619 free (*(sl->ptr_spec));
1621 *(sl->ptr_spec) = "";
1626 fatal ("specs unknown %% command after %ld characters",
1627 (long) (p1 - buffer));
1630 /* Find the colon that should end the suffix. */
1632 while (*p1 && *p1 != ':' && *p1 != '\n')
1635 /* The colon shouldn't be missing. */
1637 fatal ("specs file malformed after %ld characters",
1638 (long) (p1 - buffer));
1640 /* Skip back over trailing whitespace. */
1642 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1645 /* Copy the suffix to a string. */
1646 suffix = save_string (p, p2 - p);
1647 /* Find the next line. */
1648 p = skip_whitespace (p1 + 1);
1650 fatal ("specs file malformed after %ld characters",
1651 (long) (p - buffer));
1654 /* Find next blank line or end of string. */
1655 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1658 /* Specs end at the blank line and do not include the newline. */
1659 spec = save_string (p, p1 - p);
1662 /* Delete backslash-newline sequences from the spec. */
1667 if (in[0] == '\\' && in[1] == '\n')
1669 else if (in[0] == '#')
1670 while (*in && *in != '\n')
1678 if (suffix[0] == '*')
1680 if (! strcmp (suffix, "*link_command"))
1681 link_command_spec = spec;
1683 set_spec (suffix + 1, spec);
1687 /* Add this pair to the vector. */
1689 = ((struct compiler *)
1690 xrealloc (compilers,
1691 (n_compilers + 2) * sizeof (struct compiler)));
1693 compilers[n_compilers].suffix = suffix;
1694 memset (compilers[n_compilers].spec, 0,
1695 sizeof compilers[n_compilers].spec);
1696 compilers[n_compilers].spec[0] = spec;
1698 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1702 link_command_spec = spec;
1705 if (link_command_spec == 0)
1706 fatal ("spec file has no spec for linking");
1709 /* Record the names of temporary files we tell compilers to write,
1710 and delete them at the end of the run. */
1712 /* This is the common prefix we use to make temp file names.
1713 It is chosen once for each run of this program.
1714 It is substituted into a spec by %g.
1715 Thus, all temp file names contain this prefix.
1716 In practice, all temp file names start with this prefix.
1718 This prefix comes from the envvar TMPDIR if it is defined;
1719 otherwise, from the P_tmpdir macro if that is defined;
1720 otherwise, in /usr/tmp or /tmp;
1721 or finally the current directory if all else fails. */
1723 static const char *temp_filename;
1725 /* Length of the prefix. */
1727 static int temp_filename_length;
1729 /* Define the list of temporary files to delete. */
1734 struct temp_file *next;
1737 /* Queue of files to delete on success or failure of compilation. */
1738 static struct temp_file *always_delete_queue;
1739 /* Queue of files to delete on failure of compilation. */
1740 static struct temp_file *failure_delete_queue;
1742 /* Record FILENAME as a file to be deleted automatically.
1743 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1744 otherwise delete it in any case.
1745 FAIL_DELETE nonzero means delete it if a compilation step fails;
1746 otherwise delete it in any case. */
1749 record_temp_file (filename, always_delete, fail_delete)
1750 const char *filename;
1754 register char * const name = xstrdup (filename);
1758 register struct temp_file *temp;
1759 for (temp = always_delete_queue; temp; temp = temp->next)
1760 if (! strcmp (name, temp->name))
1763 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1764 temp->next = always_delete_queue;
1766 always_delete_queue = temp;
1773 register struct temp_file *temp;
1774 for (temp = failure_delete_queue; temp; temp = temp->next)
1775 if (! strcmp (name, temp->name))
1778 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1779 temp->next = failure_delete_queue;
1781 failure_delete_queue = temp;
1787 /* Delete all the temporary files whose names we previously recorded. */
1790 delete_if_ordinary (name)
1797 printf ("Delete %s? (y or n) ", name);
1801 while ((c = getchar ()) != '\n' && c != EOF)
1804 if (i == 'y' || i == 'Y')
1806 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1807 if (unlink (name) < 0)
1809 perror_with_name (name);
1813 delete_temp_files ()
1815 register struct temp_file *temp;
1817 for (temp = always_delete_queue; temp; temp = temp->next)
1818 delete_if_ordinary (temp->name);
1819 always_delete_queue = 0;
1822 /* Delete all the files to be deleted on error. */
1825 delete_failure_queue ()
1827 register struct temp_file *temp;
1829 for (temp = failure_delete_queue; temp; temp = temp->next)
1830 delete_if_ordinary (temp->name);
1834 clear_failure_queue ()
1836 failure_delete_queue = 0;
1839 /* Routine to add variables to the environment. We do this to pass
1840 the pathname of the gcc driver, and the directories search to the
1841 collect2 program, which is being run as ld. This way, we can be
1842 sure of executing the right compiler when collect2 wants to build
1843 constructors and destructors. Since the environment variables we
1844 use come from an obstack, we don't have to worry about allocating
1853 #ifndef VMS /* nor about VMS */
1855 extern char **environ;
1856 char **old_environ = environ;
1860 int str_len = strlen (str);
1864 while ((ch = *p++) != '\0' && ch != '=')
1870 /* Search for replacing an existing environment variable, and
1871 count the number of total environment variables. */
1872 for (envp = old_environ; *envp; envp++)
1875 if (!strncmp (str, *envp, name_len))
1882 /* Add a new environment variable */
1883 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1885 memcpy ((char *) (environ + 1), (char *) old_environ,
1886 sizeof (char *) * (num_envs+1));
1891 #endif /* HAVE_PUTENV */
1894 /* Build a list of search directories from PATHS.
1895 PREFIX is a string to prepend to the list.
1896 If CHECK_DIR_P is non-zero we ensure the directory exists.
1897 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1898 It is also used by the --print-search-dirs flag. */
1901 build_search_list (paths, prefix, check_dir_p)
1902 struct path_prefix *paths;
1906 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1908 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1909 int first_time = TRUE;
1910 struct prefix_list *pprefix;
1912 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1914 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1916 int len = strlen (pprefix->prefix);
1920 || is_directory (pprefix->prefix, machine_suffix, 0)))
1923 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1926 obstack_grow (&collect_obstack, pprefix->prefix, len);
1927 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1930 if (just_machine_suffix
1931 && pprefix->require_machine_suffix == 2
1933 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1936 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1939 obstack_grow (&collect_obstack, pprefix->prefix, len);
1940 obstack_grow (&collect_obstack, just_machine_suffix,
1944 if (! pprefix->require_machine_suffix)
1947 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1950 obstack_grow (&collect_obstack, pprefix->prefix, len);
1954 obstack_1grow (&collect_obstack, '\0');
1955 return obstack_finish (&collect_obstack);
1958 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1962 putenv_from_prefixes (paths, env_var)
1963 struct path_prefix *paths;
1964 const char *env_var;
1966 putenv (build_search_list (paths, env_var, 1));
1971 /* FIXME: the location independence code for VMS is hairier than this,
1972 and hasn't been written. */
1974 /* Split a filename into component directories. */
1977 split_directories (name, ptr_num_dirs)
1986 /* Count the number of directories. Special case MSDOS disk names as part
1987 of the initial directory. */
1989 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1990 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1995 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1997 while ((ch = *p++) != '\0')
1999 if (IS_DIR_SEPARATOR (ch))
2002 while (IS_DIR_SEPARATOR (*p))
2007 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
2009 /* Now copy the directory parts. */
2012 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2013 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2015 dirs[num_dirs++] = save_string (p, 3);
2018 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
2021 while ((ch = *p++) != '\0')
2023 if (IS_DIR_SEPARATOR (ch))
2025 while (IS_DIR_SEPARATOR (*p))
2028 dirs[num_dirs++] = save_string (q, p - q);
2034 dirs[num_dirs++] = save_string (q, p - 1 - q);
2036 dirs[num_dirs] = NULL_PTR;
2038 *ptr_num_dirs = num_dirs;
2043 /* Release storage held by split directories. */
2046 free_split_directories (dirs)
2051 while (dirs[i] != NULL_PTR)
2054 free ((char *)dirs);
2057 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2058 to PREFIX starting with the directory portion of PROGNAME and a relative
2059 pathname of the difference between BIN_PREFIX and PREFIX.
2061 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2062 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2063 function will return /reg/green/blue/../omega.
2065 If no relative prefix can be found, return NULL. */
2068 make_relative_prefix (progname, bin_prefix, prefix)
2069 const char *progname;
2070 const char *bin_prefix;
2073 char **prog_dirs, **bin_dirs, **prefix_dirs;
2074 int prog_num, bin_num, prefix_num, std_loc_p;
2077 prog_dirs = split_directories (progname, &prog_num);
2078 bin_dirs = split_directories (bin_prefix, &bin_num);
2080 /* If there is no full pathname, try to find the program by checking in each
2081 of the directories specified in the PATH environment variable. */
2086 GET_ENV_PATH_LIST (temp, "PATH");
2089 char *startp, *endp;
2090 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2092 startp = endp = temp;
2095 if (*endp == PATH_SEPARATOR || *endp == 0)
2100 nstore[1] = DIR_SEPARATOR;
2105 strncpy (nstore, startp, endp-startp);
2106 if (! IS_DIR_SEPARATOR (endp[-1]))
2108 nstore[endp-startp] = DIR_SEPARATOR;
2109 nstore[endp-startp+1] = 0;
2112 nstore[endp-startp] = 0;
2114 strcat (nstore, progname);
2115 if (! access (nstore, X_OK)
2116 #ifdef HAVE_EXECUTABLE_SUFFIX
2117 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2121 free_split_directories (prog_dirs);
2123 prog_dirs = split_directories (progname, &prog_num);
2129 endp = startp = endp + 1;
2137 /* Remove the program name from comparison of directory names. */
2140 /* Determine if the compiler is installed in the standard location, and if
2141 so, we don't need to specify relative directories. Also, if argv[0]
2142 doesn't contain any directory specifiers, there is not much we can do. */
2144 if (prog_num == bin_num)
2146 for (i = 0; i < bin_num; i++)
2148 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2152 if (prog_num <= 0 || i == bin_num)
2155 free_split_directories (prog_dirs);
2156 free_split_directories (bin_dirs);
2157 prog_dirs = bin_dirs = (char **)0;
2162 prefix_dirs = split_directories (prefix, &prefix_num);
2164 /* Find how many directories are in common between bin_prefix & prefix */
2165 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2166 for (common = 0; common < n; common++)
2168 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2172 /* If there are no common directories, there can be no relative prefix. */
2175 free_split_directories (prog_dirs);
2176 free_split_directories (bin_dirs);
2177 free_split_directories (prefix_dirs);
2181 /* Build up the pathnames in argv[0]. */
2182 for (i = 0; i < prog_num; i++)
2183 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2185 /* Now build up the ..'s. */
2186 for (i = common; i < n; i++)
2188 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP)-1);
2189 obstack_1grow (&obstack, DIR_SEPARATOR);
2192 /* Put in directories to move over to prefix. */
2193 for (i = common; i < prefix_num; i++)
2194 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2196 free_split_directories (prog_dirs);
2197 free_split_directories (bin_dirs);
2198 free_split_directories (prefix_dirs);
2200 obstack_1grow (&obstack, '\0');
2201 return obstack_finish (&obstack);
2205 /* Check whether NAME can be accessed in MODE. This is like access,
2206 except that it never considers directories to be executable. */
2209 access_check (name, mode)
2217 if (stat (name, &st) < 0
2218 || S_ISDIR (st.st_mode))
2222 return access (name, mode);
2225 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2226 access to check permissions.
2227 Return 0 if not found, otherwise return its name, allocated with malloc. */
2230 find_a_file (pprefix, name, mode)
2231 struct path_prefix *pprefix;
2236 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2237 struct prefix_list *pl;
2238 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2240 #ifdef DEFAULT_ASSEMBLER
2241 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2242 return xstrdup (DEFAULT_ASSEMBLER);
2245 #ifdef DEFAULT_LINKER
2246 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2247 return xstrdup (DEFAULT_LINKER);
2251 len += strlen (machine_suffix);
2253 temp = xmalloc (len);
2255 /* Determine the filename to execute (special case for absolute paths). */
2257 if (IS_DIR_SEPARATOR (*name)
2258 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2259 /* Check for disk name on MS-DOS-based systems. */
2260 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2264 if (access (name, mode) == 0)
2266 strcpy (temp, name);
2271 for (pl = pprefix->plist; pl; pl = pl->next)
2275 /* Some systems have a suffix for executable files.
2276 So try appending that first. */
2277 if (file_suffix[0] != 0)
2279 strcpy (temp, pl->prefix);
2280 strcat (temp, machine_suffix);
2281 strcat (temp, name);
2282 strcat (temp, file_suffix);
2283 if (access_check (temp, mode) == 0)
2285 if (pl->used_flag_ptr != 0)
2286 *pl->used_flag_ptr = 1;
2291 /* Now try just the name. */
2292 strcpy (temp, pl->prefix);
2293 strcat (temp, machine_suffix);
2294 strcat (temp, name);
2295 if (access_check (temp, mode) == 0)
2297 if (pl->used_flag_ptr != 0)
2298 *pl->used_flag_ptr = 1;
2303 /* Certain prefixes are tried with just the machine type,
2304 not the version. This is used for finding as, ld, etc. */
2305 if (just_machine_suffix && pl->require_machine_suffix == 2)
2307 /* Some systems have a suffix for executable files.
2308 So try appending that first. */
2309 if (file_suffix[0] != 0)
2311 strcpy (temp, pl->prefix);
2312 strcat (temp, just_machine_suffix);
2313 strcat (temp, name);
2314 strcat (temp, file_suffix);
2315 if (access_check (temp, mode) == 0)
2317 if (pl->used_flag_ptr != 0)
2318 *pl->used_flag_ptr = 1;
2323 strcpy (temp, pl->prefix);
2324 strcat (temp, just_machine_suffix);
2325 strcat (temp, name);
2326 if (access_check (temp, mode) == 0)
2328 if (pl->used_flag_ptr != 0)
2329 *pl->used_flag_ptr = 1;
2334 /* Certain prefixes can't be used without the machine suffix
2335 when the machine or version is explicitly specified. */
2336 if (! pl->require_machine_suffix)
2338 /* Some systems have a suffix for executable files.
2339 So try appending that first. */
2340 if (file_suffix[0] != 0)
2342 strcpy (temp, pl->prefix);
2343 strcat (temp, name);
2344 strcat (temp, file_suffix);
2345 if (access_check (temp, mode) == 0)
2347 if (pl->used_flag_ptr != 0)
2348 *pl->used_flag_ptr = 1;
2353 strcpy (temp, pl->prefix);
2354 strcat (temp, name);
2355 if (access_check (temp, mode) == 0)
2357 if (pl->used_flag_ptr != 0)
2358 *pl->used_flag_ptr = 1;
2368 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2369 at the start of the list, otherwise it goes at the end.
2371 If WARN is nonzero, we will warn if no file is found
2372 through this prefix. WARN should point to an int
2373 which will be set to 1 if this entry is used.
2375 COMPONENT is the value to be passed to update_path.
2377 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2378 the complete value of machine_suffix.
2379 2 means try both machine_suffix and just_machine_suffix. */
2382 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2383 struct path_prefix *pprefix;
2385 const char *component;
2387 int require_machine_suffix;
2390 struct prefix_list *pl, **prev;
2393 if (! first && pprefix->plist)
2395 for (pl = pprefix->plist; pl->next; pl = pl->next)
2400 prev = &pprefix->plist;
2402 /* Keep track of the longest prefix */
2404 prefix = update_path (prefix, component);
2405 len = strlen (prefix);
2406 if (len > pprefix->max_len)
2407 pprefix->max_len = len;
2409 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2410 pl->prefix = save_string (prefix, len);
2411 pl->require_machine_suffix = require_machine_suffix;
2412 pl->used_flag_ptr = warn;
2419 pl->next = (struct prefix_list *) 0;
2423 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2426 unused_prefix_warnings (pprefix)
2427 struct path_prefix *pprefix;
2429 struct prefix_list *pl = pprefix->plist;
2433 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2435 if (pl->require_machine_suffix && machine_suffix)
2436 error ("file path prefix `%s%s' never used", pl->prefix,
2439 error ("file path prefix `%s' never used", pl->prefix);
2441 /* Prevent duplicate warnings. */
2442 *pl->used_flag_ptr = 1;
2450 /* Execute the command specified by the arguments on the current line of spec.
2451 When using pipes, this includes several piped-together commands
2452 with `|' between them.
2454 Return 0 if successful, -1 if failed. */
2460 int n_commands; /* # of command. */
2464 const char *prog; /* program name. */
2465 char **argv; /* vector of args. */
2466 int pid; /* pid of process for this command. */
2469 struct command *commands; /* each command buffer with above info. */
2471 /* Count # of piped commands. */
2472 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2473 if (strcmp (argbuf[i], "|") == 0)
2476 /* Get storage for each command. */
2478 = (struct command *) alloca (n_commands * sizeof (struct command));
2480 /* Split argbuf into its separate piped processes,
2481 and record info about each one.
2482 Also search for the programs that are to be run. */
2484 commands[0].prog = argbuf[0]; /* first command. */
2485 commands[0].argv = &argbuf[0];
2486 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2489 commands[0].argv[0] = string;
2491 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2492 if (strcmp (argbuf[i], "|") == 0)
2493 { /* each command. */
2494 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2495 fatal ("-pipe not supported");
2497 argbuf[i] = 0; /* termination of command args. */
2498 commands[n_commands].prog = argbuf[i + 1];
2499 commands[n_commands].argv = &argbuf[i + 1];
2500 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2502 commands[n_commands].argv[0] = string;
2506 argbuf[argbuf_index] = 0;
2508 /* If -v, print what we are about to do, and maybe query. */
2512 /* For help listings, put a blank line between sub-processes. */
2513 if (print_help_list)
2514 fputc ('\n', stderr);
2516 /* Print each piped command as a separate line. */
2517 for (i = 0; i < n_commands ; i++)
2521 for (j = commands[i].argv; *j; j++)
2522 fprintf (stderr, " %s", *j);
2524 /* Print a pipe symbol after all but the last command. */
2525 if (i + 1 != n_commands)
2526 fprintf (stderr, " |");
2527 fprintf (stderr, "\n");
2531 notice ("\nGo ahead? (y or n) ");
2535 while (getchar () != '\n')
2538 if (i != 'y' && i != 'Y')
2543 /* Run each piped subprocess. */
2545 for (i = 0; i < n_commands; i++)
2547 char *errmsg_fmt, *errmsg_arg;
2548 char *string = commands[i].argv[0];
2550 commands[i].pid = pexecute (string, commands[i].argv,
2551 programname, temp_filename,
2552 &errmsg_fmt, &errmsg_arg,
2553 ((i == 0 ? PEXECUTE_FIRST : 0)
2554 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2555 | (string == commands[i].prog
2556 ? PEXECUTE_SEARCH : 0)
2557 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2559 if (commands[i].pid == -1)
2560 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2562 if (string != commands[i].prog)
2568 /* Wait for all the subprocesses to finish.
2569 We don't care what order they finish in;
2570 we know that N_COMMANDS waits will get them all.
2571 Ignore subprocesses that we don't know about,
2572 since they can be spawned by the process that exec'ed us. */
2576 #ifdef HAVE_GETRUSAGE
2581 for (i = 0; i < n_commands; )
2587 pid = pwait (commands[i].pid, &status, 0);
2591 #ifdef HAVE_GETRUSAGE
2594 /* getrusage returns the total resource usage of all children
2595 up to now. Copy the previous values into prus, get the
2596 current statistics, then take the difference. */
2599 getrusage (RUSAGE_CHILDREN, &rus);
2600 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2601 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2602 ut = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2604 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2605 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2606 st = (double)d.tv_sec + (double)d.tv_usec / 1.0e6;
2610 for (j = 0; j < n_commands; j++)
2611 if (commands[j].pid == pid)
2616 if (WIFSIGNALED (status))
2618 fatal ("Internal compiler error: program %s got fatal signal %d",
2619 commands[j].prog, WTERMSIG (status));
2623 else if (WIFEXITED (status)
2624 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2626 if (WEXITSTATUS (status) > greatest_status)
2627 greatest_status = WEXITSTATUS (status);
2631 #ifdef HAVE_GETRUSAGE
2632 if (report_times && ut + st != 0)
2633 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2642 /* Find all the switches given to us
2643 and make a vector describing them.
2644 The elements of the vector are strings, one per switch given.
2645 If a switch uses following arguments, then the `part1' field
2646 is the switch itself and the `args' field
2647 is a null-terminated vector containing the following arguments.
2648 The `live_cond' field is 1 if the switch is true in a conditional spec,
2649 -1 if false (overridden by a later switch), and is initialized to zero.
2650 The `validated' field is nonzero if any spec has looked at this switch;
2651 if it remains zero at the end of the run, it must be meaningless. */
2661 static struct switchstr *switches;
2663 static int n_switches;
2668 const char *language;
2671 /* Also a vector of input files specified. */
2673 static struct infile *infiles;
2675 static int n_infiles;
2677 /* This counts the number of libraries added by lang_specific_driver, so that
2678 we can tell if there were any user supplied any files or libraries. */
2680 static int added_libraries;
2682 /* And a vector of corresponding output files is made up later. */
2684 static const char **outfiles;
2686 /* Used to track if none of the -B paths are used. */
2689 /* Used to track if standard path isn't used and -b or -V is specified. */
2690 static int warn_std;
2692 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2693 static int *warn_std_ptr = 0;
2696 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2698 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2699 is true if we should look for an executable suffix as well. */
2702 convert_filename (name, do_exe)
2712 len = strlen (name);
2714 #ifdef HAVE_OBJECT_SUFFIX
2715 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2717 && name[len - 2] == '.'
2718 && name[len - 1] == 'o')
2720 obstack_grow (&obstack, name, len - 2);
2721 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2722 name = obstack_finish (&obstack);
2726 #ifdef HAVE_EXECUTABLE_SUFFIX
2727 /* If there is no filetype, make it the executable suffix (which includes
2728 the "."). But don't get confused if we have just "-o". */
2729 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2732 for (i = len - 1; i >= 0; i--)
2733 if (IS_DIR_SEPARATOR (name[i]))
2736 for (i++; i < len; i++)
2740 obstack_grow (&obstack, name, len);
2741 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2742 name = obstack_finish (&obstack);
2749 /* Display the command line switches accepted by gcc. */
2753 printf ("Usage: %s [options] file...\n", programname);
2754 printf ("Options:\n");
2756 printf (" -pass-exit-codes Exit with highest error code from a phase\n");
2757 printf (" --help Display this information\n");
2759 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2760 printf (" -dumpspecs Display all of the built in spec strings\n");
2761 printf (" -dumpversion Display the version of the compiler\n");
2762 printf (" -dumpmachine Display the compiler's target processor\n");
2763 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2764 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2765 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2766 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2767 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2768 printf (" -print-multi-lib Display the mapping between command line options and\n");
2769 printf (" multiple library search directories\n");
2770 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2771 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2772 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2773 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2774 printf (" -save-temps Do not delete intermediate files\n");
2775 printf (" -pipe Use pipes rather than intermediate files\n");
2776 printf (" -time Time the execution of each subprocess\n");
2777 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2778 printf (" -std=<standard> Assume that the input sources are for <standard>\n");
2779 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2780 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2781 printf (" -V <version> Run gcc version number <version>, if installed\n");
2782 printf (" -v Display the programs invoked by the compiler\n");
2783 printf (" -E Preprocess only; do not compile, assemble or link\n");
2784 printf (" -S Compile only; do not assemble or link\n");
2785 printf (" -c Compile and assemble, but do not link\n");
2786 printf (" -o <file> Place the output into <file>\n");
2787 printf (" -x <language> Specify the language of the following input files\n");
2788 printf (" Permissable languages include: c c++ assembler none\n");
2789 printf (" 'none' means revert to the default behaviour of\n");
2790 printf (" guessing the language based on the file's extension\n");
2792 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2793 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2795 printf ("on to these processes the -W<letter> options must be used.\n");
2797 /* The rest of the options are displayed by invocations of the various
2802 add_preprocessor_option (option, len)
2803 const char * option;
2806 n_preprocessor_options++;
2808 if (! preprocessor_options)
2809 preprocessor_options
2810 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2812 preprocessor_options
2813 = (char **) xrealloc (preprocessor_options,
2814 n_preprocessor_options * sizeof (char *));
2816 preprocessor_options [n_preprocessor_options - 1] =
2817 save_string (option, len);
2821 add_assembler_option (option, len)
2822 const char * option;
2825 n_assembler_options++;
2827 if (! assembler_options)
2829 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2832 = (char **) xrealloc (assembler_options,
2833 n_assembler_options * sizeof (char *));
2835 assembler_options [n_assembler_options - 1] = save_string (option, len);
2839 add_linker_option (option, len)
2840 const char * option;
2845 if (! linker_options)
2847 = (char **) xmalloc (n_linker_options * sizeof (char *));
2850 = (char **) xrealloc (linker_options,
2851 n_linker_options * sizeof (char *));
2853 linker_options [n_linker_options - 1] = save_string (option, len);
2856 /* Create the vector `switches' and its contents.
2857 Store its length in `n_switches'. */
2860 process_command (argc, argv)
2867 char *spec_lang = 0;
2868 int last_language_n_infiles;
2871 int lang_n_infiles = 0;
2873 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2877 added_libraries = 0;
2879 /* Figure compiler version from version string. */
2881 compiler_version = temp1 = xstrdup (version_string);
2883 for (; *temp1; ++temp1)
2892 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2893 see if we can create it from the pathname specified in argv[0]. */
2896 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2897 if (!gcc_exec_prefix)
2899 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2900 standard_exec_prefix);
2901 if (gcc_exec_prefix)
2902 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2906 if (gcc_exec_prefix)
2908 int len = strlen (gcc_exec_prefix);
2909 if (len > (int) sizeof ("/lib/gcc-lib/")-1
2910 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2912 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2913 if (IS_DIR_SEPARATOR (*temp)
2914 && strncmp (temp+1, "lib", 3) == 0
2915 && IS_DIR_SEPARATOR (temp[4])
2916 && strncmp (temp+5, "gcc-lib", 7) == 0)
2917 len -= sizeof ("/lib/gcc-lib/") - 1;
2920 set_std_prefix (gcc_exec_prefix, len);
2921 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2922 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2925 /* COMPILER_PATH and LIBRARY_PATH have values
2926 that are lists of directory names with colons. */
2928 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2931 const char *startp, *endp;
2932 char *nstore = (char *) alloca (strlen (temp) + 3);
2934 startp = endp = temp;
2937 if (*endp == PATH_SEPARATOR || *endp == 0)
2939 strncpy (nstore, startp, endp-startp);
2941 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2942 else if (!IS_DIR_SEPARATOR (endp[-1]))
2944 nstore[endp-startp] = DIR_SEPARATOR;
2945 nstore[endp-startp+1] = 0;
2948 nstore[endp-startp] = 0;
2949 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2950 add_prefix (&include_prefixes,
2951 concat (nstore, "include", NULL_PTR),
2955 endp = startp = endp + 1;
2962 GET_ENV_PATH_LIST (temp, "LIBRARY_PATH");
2963 if (temp && *cross_compile == '0')
2965 const char *startp, *endp;
2966 char *nstore = (char *) alloca (strlen (temp) + 3);
2968 startp = endp = temp;
2971 if (*endp == PATH_SEPARATOR || *endp == 0)
2973 strncpy (nstore, startp, endp-startp);
2975 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2976 else if (!IS_DIR_SEPARATOR (endp[-1]))
2978 nstore[endp-startp] = DIR_SEPARATOR;
2979 nstore[endp-startp+1] = 0;
2982 nstore[endp-startp] = 0;
2983 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2987 endp = startp = endp + 1;
2994 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2995 GET_ENV_PATH_LIST (temp, "LPATH");
2996 if (temp && *cross_compile == '0')
2998 const char *startp, *endp;
2999 char *nstore = (char *) alloca (strlen (temp) + 3);
3001 startp = endp = temp;
3004 if (*endp == PATH_SEPARATOR || *endp == 0)
3006 strncpy (nstore, startp, endp-startp);
3008 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
3009 else if (!IS_DIR_SEPARATOR (endp[-1]))
3011 nstore[endp-startp] = DIR_SEPARATOR;
3012 nstore[endp-startp+1] = 0;
3015 nstore[endp-startp] = 0;
3016 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
3020 endp = startp = endp + 1;
3027 /* Convert new-style -- options to old-style. */
3028 translate_options (&argc, &argv);
3030 /* Do language-specific adjustment/addition of flags. */
3031 lang_specific_driver (&argc, &argv, &added_libraries);
3033 /* Scan argv twice. Here, the first time, just count how many switches
3034 there will be in their vector, and how many input files in theirs.
3035 Here we also parse the switches that cc itself uses (e.g. -v). */
3037 for (i = 1; i < argc; i++)
3039 if (! strcmp (argv[i], "-dumpspecs"))
3041 struct spec_list *sl;
3043 for (sl = specs; sl; sl = sl->next)
3044 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3045 if (link_command_spec)
3046 printf ("*link_command:\n%s\n\n", link_command_spec);
3049 else if (! strcmp (argv[i], "-dumpversion"))
3051 printf ("%s\n", spec_version);
3054 else if (! strcmp (argv[i], "-dumpmachine"))
3056 printf ("%s\n", spec_machine);
3059 else if (strcmp (argv[i], "-fhelp") == 0)
3061 /* translate_options () has turned --help into -fhelp. */
3062 print_help_list = 1;
3064 /* We will be passing a dummy file on to the sub-processes. */
3068 add_preprocessor_option ("--help", 6);
3069 add_assembler_option ("--help", 6);
3070 add_linker_option ("--help", 6);
3072 else if (! strcmp (argv[i], "-pass-exit-codes"))
3074 pass_exit_codes = 1;
3077 else if (! strcmp (argv[i], "-print-search-dirs"))
3078 print_search_dirs = 1;
3079 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3080 print_file_name = "libgcc.a";
3081 else if (! strncmp (argv[i], "-print-file-name=", 17))
3082 print_file_name = argv[i] + 17;
3083 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3084 print_prog_name = argv[i] + 17;
3085 else if (! strcmp (argv[i], "-print-multi-lib"))
3086 print_multi_lib = 1;
3087 else if (! strcmp (argv[i], "-print-multi-directory"))
3088 print_multi_directory = 1;
3089 else if (! strncmp (argv[i], "-Wa,", 4))
3092 /* Pass the rest of this option to the assembler. */
3094 /* Split the argument at commas. */
3096 for (j = 4; argv[i][j]; j++)
3097 if (argv[i][j] == ',')
3099 add_assembler_option (argv[i] + prev, j - prev);
3103 /* Record the part after the last comma. */
3104 add_assembler_option (argv[i] + prev, j - prev);
3106 else if (! strncmp (argv[i], "-Wp,", 4))
3109 /* Pass the rest of this option to the preprocessor. */
3111 /* Split the argument at commas. */
3113 for (j = 4; argv[i][j]; j++)
3114 if (argv[i][j] == ',')
3116 add_preprocessor_option (argv[i] + prev, j - prev);
3120 /* Record the part after the last comma. */
3121 add_preprocessor_option (argv[i] + prev, j - prev);
3123 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3124 /* The +e options to the C++ front-end. */
3126 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3129 /* Split the argument at commas. */
3130 for (j = 3; argv[i][j]; j++)
3131 n_infiles += (argv[i][j] == ',');
3133 else if (strcmp (argv[i], "-Xlinker") == 0)
3136 fatal ("argument to `-Xlinker' is missing");
3141 else if (strncmp (argv[i], "-l", 2) == 0)
3143 else if (strcmp (argv[i], "-save-temps") == 0)
3145 save_temps_flag = 1;
3148 else if (strcmp (argv[i], "-specs") == 0)
3150 struct user_specs *user = (struct user_specs *)
3151 xmalloc (sizeof (struct user_specs));
3153 fatal ("argument to `-specs' is missing");
3155 user->next = (struct user_specs *)0;
3156 user->filename = argv[i];
3157 if (user_specs_tail)
3158 user_specs_tail->next = user;
3160 user_specs_head = user;
3161 user_specs_tail = user;
3163 else if (strncmp (argv[i], "-specs=", 7) == 0)
3165 struct user_specs *user = (struct user_specs *)
3166 xmalloc (sizeof (struct user_specs));
3167 if (strlen (argv[i]) == 7)
3168 fatal ("argument to `-specs=' is missing");
3170 user->next = (struct user_specs *)0;
3171 user->filename = argv[i]+7;
3172 if (user_specs_tail)
3173 user_specs_tail->next = user;
3175 user_specs_head = user;
3176 user_specs_tail = user;
3178 else if (strcmp (argv[i], "-time") == 0)
3180 else if (argv[i][0] == '-' && argv[i][1] != 0)
3182 register char *p = &argv[i][1];
3183 register int c = *p;
3189 if (p[1] == 0 && i + 1 == argc)
3190 fatal ("argument to `-b' is missing");
3192 spec_machine = argv[++i];
3194 spec_machine = p + 1;
3196 warn_std_ptr = &warn_std;
3202 if (p[1] == 0 && i + 1 == argc)
3203 fatal ("argument to `-B' is missing");
3208 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
3209 add_prefix (&startfile_prefixes, value, NULL_PTR,
3211 add_prefix (&include_prefixes, concat (value, "include",
3213 NULL_PTR, 1, 0, NULL_PTR);
3215 /* As a kludge, if the arg is "[foo/]stageN/", just add
3216 "[foo/]include" to the include prefix. */
3218 int len = strlen (value);
3221 && (IS_DIR_SEPARATOR (value[len - 8]))))
3222 && strncmp (value + len - 7, "stage", 5) == 0
3223 && ISDIGIT (value[len - 2])
3224 && (IS_DIR_SEPARATOR (value[len - 1])))
3227 add_prefix (&include_prefixes, "include", NULL_PTR,
3231 char *string = xmalloc (len + 1);
3232 strncpy (string, value, len-7);
3233 strcpy (string+len-7, "include");
3234 add_prefix (&include_prefixes, string, NULL_PTR,
3243 case 'v': /* Print our subcommands and print versions. */
3245 /* If they do anything other than exactly `-v', don't set
3246 verbose_flag; rather, continue on to give the error. */
3254 if (p[1] == 0 && i + 1 == argc)
3255 fatal ("argument to `-V' is missing");
3257 spec_version = argv[++i];
3259 spec_version = p + 1;
3260 compiler_version = spec_version;
3261 warn_std_ptr = &warn_std;
3263 /* Validate the version number. Use the same checks
3264 done when inserting it into a spec.
3266 The format of the version string is
3267 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3269 const char *v = compiler_version;
3271 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3272 while (! ISDIGIT (*v))
3275 if (v > compiler_version && v[-1] != '-')
3276 fatal ("invalid version number format");
3278 /* Set V after the first period. */
3279 while (ISDIGIT (*v))
3283 fatal ("invalid version number format");
3286 while (ISDIGIT (*v))
3289 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3290 fatal ("invalid version number format");
3306 #if defined(HAVE_EXECUTABLE_SUFFIX)
3311 /* Forward scan, just in case -S or -c is specified
3318 if (argv[j][0] == '-')
3320 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3326 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3327 j += skip - (argv[j][2] != 0);
3328 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3335 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3337 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3339 argv[i] = convert_filename (argv[i], ! have_c);
3347 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3348 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3349 else if (WORD_SWITCH_TAKES_ARG (p))
3350 i += WORD_SWITCH_TAKES_ARG (p);
3360 if (have_c && have_o && lang_n_infiles > 1)
3361 fatal ("cannot specify -o with -c or -S and multiple compilations");
3363 /* Set up the search paths before we go looking for config files. */
3365 /* These come before the md prefixes so that we will find gcc's subcommands
3366 (such as cpp) rather than those of the host system. */
3367 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3368 as well as trying the machine and the version. */
3370 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3371 0, 1, warn_std_ptr);
3372 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3373 0, 2, warn_std_ptr);
3374 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3375 0, 2, warn_std_ptr);
3378 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3379 0, 1, warn_std_ptr);
3380 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3381 0, 1, warn_std_ptr);
3383 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3384 dir_separator_str, NULL_PTR);
3386 /* If tooldir is relative, base it on exec_prefixes. A relative
3387 tooldir lets us move the installed tree as a unit.
3389 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3390 directories, so that we can search both the user specified directory
3391 and the standard place. */
3393 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3395 if (gcc_exec_prefix)
3397 char *gcc_exec_tooldir_prefix
3398 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3399 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3401 add_prefix (&exec_prefixes,
3402 concat (gcc_exec_tooldir_prefix, "bin",
3403 dir_separator_str, NULL_PTR),
3404 NULL_PTR, 0, 0, NULL_PTR);
3405 add_prefix (&startfile_prefixes,
3406 concat (gcc_exec_tooldir_prefix, "lib",
3407 dir_separator_str, NULL_PTR),
3408 NULL_PTR, 0, 0, NULL_PTR);
3411 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3412 dir_separator_str, spec_version,
3413 dir_separator_str, tooldir_prefix, NULL_PTR);
3416 add_prefix (&exec_prefixes,
3417 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3418 "BINUTILS", 0, 0, NULL_PTR);
3419 add_prefix (&startfile_prefixes,
3420 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3421 "BINUTILS", 0, 0, NULL_PTR);
3423 /* More prefixes are enabled in main, after we read the specs file
3424 and determine whether this is cross-compilation or not. */
3427 /* Then create the space for the vectors and scan again. */
3429 switches = ((struct switchstr *)
3430 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3431 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3434 last_language_n_infiles = -1;
3436 /* This, time, copy the text of each switch and store a pointer
3437 to the copy in the vector of switches.
3438 Store all the infiles in their vector. */
3440 for (i = 1; i < argc; i++)
3442 /* Just skip the switches that were handled by the preceding loop. */
3443 if (! strncmp (argv[i], "-Wa,", 4))
3445 else if (! strncmp (argv[i], "-Wp,", 4))
3447 else if (! strcmp (argv[i], "-pass-exit-codes"))
3449 else if (! strcmp (argv[i], "-print-search-dirs"))
3451 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3453 else if (! strncmp (argv[i], "-print-file-name=", 17))
3455 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3457 else if (! strcmp (argv[i], "-print-multi-lib"))
3459 else if (! strcmp (argv[i], "-print-multi-directory"))
3461 else if (strcmp (argv[i], "-fhelp") == 0)
3465 /* Create a dummy input file, so that we can pass --help on to
3466 the various sub-processes. */
3467 infiles[n_infiles].language = "c";
3468 infiles[n_infiles++].name = "help-dummy";
3470 /* Preserve the --help switch so that it can be caught by the
3472 switches[n_switches].part1 = "--help";
3473 switches[n_switches].args = 0;
3474 switches[n_switches].live_cond = 0;
3475 switches[n_switches].validated = 0;
3480 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3482 /* Compensate for the +e options to the C++ front-end;
3483 they're there simply for cfront call-compatibility. We do
3484 some magic in default_compilers to pass them down properly.
3485 Note we deliberately start at the `+' here, to avoid passing
3486 -e0 or -e1 down into the linker. */
3487 switches[n_switches].part1 = &argv[i][0];
3488 switches[n_switches].args = 0;
3489 switches[n_switches].live_cond = 0;
3490 switches[n_switches].validated = 0;
3493 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3496 /* Split the argument at commas. */
3498 for (j = 4; argv[i][j]; j++)
3499 if (argv[i][j] == ',')
3501 infiles[n_infiles].language = "*";
3502 infiles[n_infiles++].name
3503 = save_string (argv[i] + prev, j - prev);
3506 /* Record the part after the last comma. */
3507 infiles[n_infiles].language = "*";
3508 infiles[n_infiles++].name = argv[i] + prev;
3510 else if (strcmp (argv[i], "-Xlinker") == 0)
3512 infiles[n_infiles].language = "*";
3513 infiles[n_infiles++].name = argv[++i];
3515 else if (strncmp (argv[i], "-l", 2) == 0)
3517 infiles[n_infiles].language = "*";
3518 infiles[n_infiles++].name = argv[i];
3520 else if (strcmp (argv[i], "-specs") == 0)
3522 else if (strncmp (argv[i], "-specs=", 7) == 0)
3524 else if (strcmp (argv[i], "-time") == 0)
3526 else if ((save_temps_flag || report_times)
3527 && strcmp (argv[i], "-pipe") == 0)
3529 /* -save-temps overrides -pipe, so that temp files are produced */
3530 if (save_temps_flag)
3531 error ("Warning: -pipe ignored since -save-temps specified");
3532 /* -time overrides -pipe because we can't get correct stats when
3533 multiple children are running at once. */
3534 else if (report_times)
3535 error ("Warning: -pipe ignored since -time specified");
3537 else if (argv[i][0] == '-' && argv[i][1] != 0)
3539 register char *p = &argv[i][1];
3540 register int c = *p;
3544 if (p[1] == 0 && i + 1 == argc)
3545 fatal ("argument to `-x' is missing");
3547 spec_lang = argv[++i];
3550 if (! strcmp (spec_lang, "none"))
3551 /* Suppress the warning if -xnone comes after the last input
3552 file, because alternate command interfaces like g++ might
3553 find it useful to place -xnone after each input file. */
3556 last_language_n_infiles = n_infiles;
3559 switches[n_switches].part1 = p;
3560 /* Deal with option arguments in separate argv elements. */
3561 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3562 || WORD_SWITCH_TAKES_ARG (p))
3565 int n_args = WORD_SWITCH_TAKES_ARG (p);
3569 /* Count only the option arguments in separate argv elements. */
3570 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3572 if (i + n_args >= argc)
3573 fatal ("argument to `-%s' is missing", p);
3574 switches[n_switches].args
3575 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3577 switches[n_switches].args[j++] = argv[++i];
3578 /* Null-terminate the vector. */
3579 switches[n_switches].args[j] = 0;
3581 else if (index (switches_need_spaces, c))
3583 /* On some systems, ld cannot handle some options without
3584 a space. So split the option from its argument. */
3585 char *part1 = (char *) xmalloc (2);
3589 switches[n_switches].part1 = part1;
3590 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3591 switches[n_switches].args[0] = xmalloc (strlen (p));
3592 strcpy (switches[n_switches].args[0], &p[1]);
3593 switches[n_switches].args[1] = 0;
3596 switches[n_switches].args = 0;
3598 switches[n_switches].live_cond = 0;
3599 switches[n_switches].validated = 0;
3600 /* This is always valid, since gcc.c itself understands it. */
3601 if (!strcmp (p, "save-temps"))
3602 switches[n_switches].validated = 1;
3605 char ch = switches[n_switches].part1[0];
3606 if (ch == 'V' || ch == 'b' || ch == 'B')
3607 switches[n_switches].validated = 1;
3613 #ifdef HAVE_OBJECT_SUFFIX
3614 argv[i] = convert_filename (argv[i], 0);
3617 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3619 perror_with_name (argv[i]);
3624 infiles[n_infiles].language = spec_lang;
3625 infiles[n_infiles++].name = argv[i];
3630 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3631 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3633 switches[n_switches].part1 = 0;
3634 infiles[n_infiles].name = 0;
3637 /* Process a spec string, accumulating and running commands. */
3639 /* These variables describe the input file name.
3640 input_file_number is the index on outfiles of this file,
3641 so that the output file name can be stored for later use by %o.
3642 input_basename is the start of the part of the input file
3643 sans all directory names, and basename_length is the number
3644 of characters starting there excluding the suffix .c or whatever. */
3646 const char *input_filename;
3647 static int input_file_number;
3648 size_t input_filename_length;
3649 static int basename_length;
3650 static const char *input_basename;
3651 static const char *input_suffix;
3653 /* These are variables used within do_spec and do_spec_1. */
3655 /* Nonzero if an arg has been started and not yet terminated
3656 (with space, tab or newline). */
3657 static int arg_going;
3659 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3660 is a temporary file name. */
3661 static int delete_this_arg;
3663 /* Nonzero means %w has been seen; the next arg to be terminated
3664 is the output file name of this compilation. */
3665 static int this_is_output_file;
3667 /* Nonzero means %s has been seen; the next arg to be terminated
3668 is the name of a library file and we should try the standard
3669 search dirs for it. */
3670 static int this_is_library_file;
3672 /* Nonzero means that the input of this command is coming from a pipe. */
3673 static int input_from_pipe;
3675 /* Process the spec SPEC and run the commands specified therein.
3676 Returns 0 if the spec is successfully processed; -1 if failed. */
3686 delete_this_arg = 0;
3687 this_is_output_file = 0;
3688 this_is_library_file = 0;
3689 input_from_pipe = 0;
3691 value = do_spec_1 (spec, 0, NULL_PTR);
3693 /* Force out any unfinished command.
3694 If -pipe, this forces out the last command if it ended in `|'. */
3697 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3700 if (argbuf_index > 0)
3707 /* Process the sub-spec SPEC as a portion of a larger spec.
3708 This is like processing a whole spec except that we do
3709 not initialize at the beginning and we do not supply a
3710 newline by default at the end.
3711 INSWITCH nonzero means don't process %-sequences in SPEC;
3712 in this case, % is treated as an ordinary character.
3713 This is used while substituting switches.
3714 INSWITCH nonzero also causes SPC not to terminate an argument.
3716 Value is zero unless a line was finished
3717 and the command on that line reported an error. */
3720 do_spec_1 (spec, inswitch, soft_matched_part)
3723 const char *soft_matched_part;
3725 register const char *p = spec;
3732 /* If substituting a switch, treat all chars like letters.
3733 Otherwise, NL, SPC, TAB and % are special. */
3734 switch (inswitch ? 'a' : c)
3737 /* End of line: finish any pending argument,
3738 then run the pending command if one has been started. */
3741 obstack_1grow (&obstack, 0);
3742 string = obstack_finish (&obstack);
3743 if (this_is_library_file)
3744 string = find_file (string);
3745 store_arg (string, delete_this_arg, this_is_output_file);
3746 if (this_is_output_file)
3747 outfiles[input_file_number] = string;
3751 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3753 for (i = 0; i < n_switches; i++)
3754 if (!strcmp (switches[i].part1, "pipe"))
3757 /* A `|' before the newline means use a pipe here,
3758 but only if -pipe was specified.
3759 Otherwise, execute now and don't pass the `|' as an arg. */
3762 input_from_pipe = 1;
3763 switches[i].validated = 1;
3770 if (argbuf_index > 0)
3776 /* Reinitialize for a new command, and for a new argument. */
3779 delete_this_arg = 0;
3780 this_is_output_file = 0;
3781 this_is_library_file = 0;
3782 input_from_pipe = 0;
3786 /* End any pending argument. */
3789 obstack_1grow (&obstack, 0);
3790 string = obstack_finish (&obstack);
3791 if (this_is_library_file)
3792 string = find_file (string);
3793 store_arg (string, delete_this_arg, this_is_output_file);
3794 if (this_is_output_file)
3795 outfiles[input_file_number] = string;
3799 obstack_1grow (&obstack, c);
3805 /* Space or tab ends an argument if one is pending. */
3808 obstack_1grow (&obstack, 0);
3809 string = obstack_finish (&obstack);
3810 if (this_is_library_file)
3811 string = find_file (string);
3812 store_arg (string, delete_this_arg, this_is_output_file);
3813 if (this_is_output_file)
3814 outfiles[input_file_number] = string;
3816 /* Reinitialize for a new argument. */
3818 delete_this_arg = 0;
3819 this_is_output_file = 0;
3820 this_is_library_file = 0;
3827 fatal ("Invalid specification! Bug in cc.");
3830 obstack_grow (&obstack, input_basename, basename_length);
3835 delete_this_arg = 2;
3838 /* Dump out the directories specified with LIBRARY_PATH,
3839 followed by the absolute directories
3840 that we search for startfiles. */
3843 struct prefix_list *pl = startfile_prefixes.plist;
3844 size_t bufsize = 100;
3845 char *buffer = (char *) xmalloc (bufsize);
3848 for (; pl; pl = pl->next)
3850 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3851 /* Used on systems which record the specified -L dirs
3852 and use them to search for dynamic linking. */
3853 /* Relative directories always come from -B,
3854 and it is better not to use them for searching
3855 at run time. In particular, stage1 loses */
3856 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3859 /* Try subdirectory if there is one. */
3860 if (multilib_dir != NULL)
3864 if (strlen (pl->prefix) + strlen (machine_suffix)
3866 bufsize = (strlen (pl->prefix)
3867 + strlen (machine_suffix)) * 2 + 1;
3868 buffer = (char *) xrealloc (buffer, bufsize);
3869 strcpy (buffer, pl->prefix);
3870 strcat (buffer, machine_suffix);
3871 if (is_directory (buffer, multilib_dir, 1))
3873 do_spec_1 ("-L", 0, NULL_PTR);
3874 #ifdef SPACE_AFTER_L_OPTION
3875 do_spec_1 (" ", 0, NULL_PTR);
3877 do_spec_1 (buffer, 1, NULL_PTR);
3878 do_spec_1 (multilib_dir, 1, NULL_PTR);
3879 /* Make this a separate argument. */
3880 do_spec_1 (" ", 0, NULL_PTR);
3883 if (!pl->require_machine_suffix)
3885 if (is_directory (pl->prefix, multilib_dir, 1))
3887 do_spec_1 ("-L", 0, NULL_PTR);
3888 #ifdef SPACE_AFTER_L_OPTION
3889 do_spec_1 (" ", 0, NULL_PTR);
3891 do_spec_1 (pl->prefix, 1, NULL_PTR);
3892 do_spec_1 (multilib_dir, 1, NULL_PTR);
3893 /* Make this a separate argument. */
3894 do_spec_1 (" ", 0, NULL_PTR);
3900 if (is_directory (pl->prefix, machine_suffix, 1))
3902 do_spec_1 ("-L", 0, NULL_PTR);
3903 #ifdef SPACE_AFTER_L_OPTION
3904 do_spec_1 (" ", 0, NULL_PTR);
3906 do_spec_1 (pl->prefix, 1, NULL_PTR);
3907 /* Remove slash from machine_suffix. */
3908 if (strlen (machine_suffix) >= bufsize)
3909 bufsize = strlen (machine_suffix) * 2 + 1;
3910 buffer = (char *) xrealloc (buffer, bufsize);
3911 strcpy (buffer, machine_suffix);
3912 idx = strlen (buffer);
3913 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3914 buffer[idx - 1] = 0;
3915 do_spec_1 (buffer, 1, NULL_PTR);
3916 /* Make this a separate argument. */
3917 do_spec_1 (" ", 0, NULL_PTR);
3920 if (!pl->require_machine_suffix)
3922 if (is_directory (pl->prefix, "", 1))
3924 do_spec_1 ("-L", 0, NULL_PTR);
3925 #ifdef SPACE_AFTER_L_OPTION
3926 do_spec_1 (" ", 0, NULL_PTR);
3928 /* Remove slash from pl->prefix. */
3929 if (strlen (pl->prefix) >= bufsize)
3930 bufsize = strlen (pl->prefix) * 2 + 1;
3931 buffer = (char *) xrealloc (buffer, bufsize);
3932 strcpy (buffer, pl->prefix);
3933 idx = strlen (buffer);
3934 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3935 buffer[idx - 1] = 0;
3936 do_spec_1 (buffer, 1, NULL_PTR);
3937 /* Make this a separate argument. */
3938 do_spec_1 (" ", 0, NULL_PTR);
3947 /* %efoo means report an error with `foo' as error message
3948 and don't execute any more commands for this file. */
3952 while (*p != 0 && *p != '\n') p++;
3953 buf = (char *) alloca (p - q + 1);
3954 strncpy (buf, q, p - q);
3964 if (save_temps_flag)
3966 obstack_grow (&obstack, input_basename, basename_length);
3967 delete_this_arg = 0;
3971 #ifdef MKTEMP_EACH_FILE
3972 /* ??? This has a problem: the total number of
3973 values mktemp can return is limited.
3974 That matters for the names of object files.
3975 In 2.4, do something about that. */
3976 struct temp_name *t;
3978 const char *suffix = p;
3979 char *saved_suffix = NULL;
3981 while (*p == '.' || ISALPHA ((unsigned char)*p))
3983 suffix_length = p - suffix;
3984 if (p[0] == '%' && p[1] == 'O')
3987 /* We don't support extra suffix characters after %O. */
3988 if (*p == '.' || ISALPHA ((unsigned char)*p))
3990 if (suffix_length == 0)
3991 suffix = OBJECT_SUFFIX;
3995 = (char *) xmalloc (suffix_length
3996 + strlen (OBJECT_SUFFIX));
3997 strncpy (saved_suffix, suffix, suffix_length);
3998 strcpy (saved_suffix + suffix_length,
4001 suffix_length += strlen (OBJECT_SUFFIX);
4004 /* See if we already have an association of %g/%u/%U and
4006 for (t = temp_names; t; t = t->next)
4007 if (t->length == suffix_length
4008 && strncmp (t->suffix, suffix, suffix_length) == 0
4009 && t->unique == (c != 'g'))
4012 /* Make a new association if needed. %u requires one. */
4013 if (t == 0 || c == 'u')
4017 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4018 t->next = temp_names;
4021 t->length = suffix_length;
4022 t->suffix = save_string (suffix, suffix_length);
4023 t->unique = (c != 'g');
4024 temp_filename = make_temp_file (t->suffix);
4025 temp_filename_length = strlen (temp_filename);
4026 t->filename = temp_filename;
4027 t->filename_length = temp_filename_length;
4031 free (saved_suffix);
4033 obstack_grow (&obstack, t->filename, t->filename_length);
4034 delete_this_arg = 1;
4036 obstack_grow (&obstack, temp_filename, temp_filename_length);
4037 if (c == 'u' || c == 'U')
4043 sprintf (buff, "%d", unique);
4044 obstack_grow (&obstack, buff, strlen (buff));
4047 delete_this_arg = 1;
4053 obstack_grow (&obstack, input_filename, input_filename_length);
4059 struct prefix_list *pl = include_prefixes.plist;
4061 if (gcc_exec_prefix)
4063 do_spec_1 ("-iprefix", 1, NULL_PTR);
4064 /* Make this a separate argument. */
4065 do_spec_1 (" ", 0, NULL_PTR);
4066 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4067 do_spec_1 (" ", 0, NULL_PTR);
4070 for (; pl; pl = pl->next)
4072 do_spec_1 ("-isystem", 1, NULL_PTR);
4073 /* Make this a separate argument. */
4074 do_spec_1 (" ", 0, NULL_PTR);
4075 do_spec_1 (pl->prefix, 1, NULL_PTR);
4076 do_spec_1 (" ", 0, NULL_PTR);
4083 int max = n_infiles;
4084 max += lang_specific_extra_outfiles;
4086 for (i = 0; i < max; i++)
4088 store_arg (outfiles[i], 0, 0);
4093 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4098 this_is_library_file = 1;
4102 this_is_output_file = 1;
4107 int cur_index = argbuf_index;
4108 /* Handle the {...} following the %W. */
4111 p = handle_braces (p + 1);
4114 /* If any args were output, mark the last one for deletion
4116 if (argbuf_index != cur_index)
4117 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4121 /* %x{OPTION} records OPTION for %X to output. */
4127 /* Skip past the option value and make a copy. */
4132 string = save_string (p1 + 1, p - p1 - 2);
4134 /* See if we already recorded this option. */
4135 for (i = 0; i < n_linker_options; i++)
4136 if (! strcmp (string, linker_options[i]))
4142 /* This option is new; add it. */
4143 add_linker_option (string, strlen (string));
4147 /* Dump out the options accumulated previously using %x. */
4149 for (i = 0; i < n_linker_options; i++)
4151 do_spec_1 (linker_options[i], 1, NULL_PTR);
4152 /* Make each accumulated option a separate argument. */
4153 do_spec_1 (" ", 0, NULL_PTR);
4157 /* Dump out the options accumulated previously using -Wa,. */
4159 for (i = 0; i < n_assembler_options; i++)
4161 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4162 /* Make each accumulated option a separate argument. */
4163 do_spec_1 (" ", 0, NULL_PTR);
4167 /* Dump out the options accumulated previously using -Wp,. */
4169 for (i = 0; i < n_preprocessor_options; i++)
4171 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4172 /* Make each accumulated option a separate argument. */
4173 do_spec_1 (" ", 0, NULL_PTR);
4177 /* Here are digits and numbers that just process
4178 a certain constant string as a spec. */
4181 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4187 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4193 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4199 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4205 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4211 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4217 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4223 value = do_spec_1 (link_spec, 0, NULL_PTR);
4229 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4235 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4242 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4246 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4250 if (! strncmp (y, "-D", 2))
4251 /* Copy the whole option. */
4252 while (*y && *y != ' ' && *y != '\t')
4254 else if (*y == ' ' || *y == '\t')
4255 /* Copy whitespace to the result. */
4257 /* Don't copy other options. */
4264 value = do_spec_1 (buf, 0, NULL_PTR);
4272 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4276 /* Copy all of CPP_PREDEFINES into BUF,
4277 but put __ after every -D and at the end of each arg. */
4281 if (! strncmp (y, "-D", 2))
4290 && ! ISUPPER ((unsigned char)*(y+1))))
4292 /* Stick __ at front of macro name. */
4295 /* Arrange to stick __ at the end as well. */
4299 /* Copy the macro name. */
4300 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4309 /* Copy the value given, if any. */
4310 while (*y && *y != ' ' && *y != '\t')
4313 else if (*y == ' ' || *y == '\t')
4314 /* Copy whitespace to the result. */
4316 /* Don't copy -A options */
4322 /* Copy all of CPP_PREDEFINES into BUF,
4323 but put __ after every -D. */
4327 if (! strncmp (y, "-D", 2))
4333 && ! ISUPPER ((unsigned char)*(y+1))))
4335 /* Stick -D__ at front of macro name. */
4341 /* Copy the macro name. */
4342 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4345 /* Copy the value given, if any. */
4346 while (*y && *y != ' ' && *y != '\t')
4351 /* Do not copy this macro - we have just done it before */
4352 while (*y && *y != ' ' && *y != '\t')
4356 else if (*y == ' ' || *y == '\t')
4357 /* Copy whitespace to the result. */
4359 /* Don't copy -A options */
4365 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4369 if (! strncmp (y, "-A", 2))
4370 /* Copy the whole option. */
4371 while (*y && *y != ' ' && *y != '\t')
4373 else if (*y == ' ' || *y == '\t')
4374 /* Copy whitespace to the result. */
4376 /* Don't copy other options. */
4383 value = do_spec_1 (buf, 0, NULL_PTR);
4390 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4395 /* Here we define characters other than letters and digits. */
4398 p = handle_braces (p);
4404 obstack_1grow (&obstack, '%');
4408 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4409 do_spec_1 (" ", 0, NULL_PTR);
4412 /* Process a string found as the value of a spec given by name.
4413 This feature allows individual machine descriptions
4414 to add and use their own specs.
4415 %[...] modifies -D options the way %P does;
4416 %(...) uses the spec unmodified. */
4418 error ("Warning: use of obsolete %%[ operator in specs");
4421 const char *name = p;
4422 struct spec_list *sl;
4425 /* The string after the S/P is the name of a spec that is to be
4427 while (*p && *p != ')' && *p != ']')
4430 /* See if it's in the list */
4431 for (len = p - name, sl = specs; sl; sl = sl->next)
4432 if (sl->name_len == len && !strncmp (sl->name, name, len))
4434 name = *(sl->ptr_spec);
4436 notice ("Processing spec %c%s%c, which is '%s'\n",
4437 c, sl->name, (c == '(') ? ')' : ']', name);
4446 value = do_spec_1 (name, 0, NULL_PTR);
4452 char *x = (char *) alloca (strlen (name) * 2 + 1);
4454 const char *y = name;
4457 /* Copy all of NAME into BUF, but put __ after
4458 every -D and at the end of each arg, */
4461 if (! strncmp (y, "-D", 2))
4471 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4472 || *y == '}' || *y == 0))
4485 value = do_spec_1 (buf, 0, NULL_PTR);
4491 /* Discard the closing paren or bracket. */
4499 int c1 = *p++; /* Select first or second version number. */
4500 char *v = compiler_version;
4503 /* The format of the version string is
4504 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4506 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4507 while (! ISDIGIT (*v))
4509 if (v > compiler_version && v[-1] != '-')
4512 /* If desired, advance to second version number. */
4515 /* Set V after the first period. */
4516 while (ISDIGIT (*v))
4523 /* Set Q at the next period or at the end. */
4525 while (ISDIGIT (*q))
4527 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
4530 /* Put that part into the command. */
4531 obstack_grow (&obstack, v, q - v);
4537 if (input_from_pipe)
4538 do_spec_1 ("-", 0, NULL_PTR);
4547 /* Backslash: treat next character as ordinary. */
4552 /* Ordinary character: put it into the current argument. */
4553 obstack_1grow (&obstack, c);
4557 return 0; /* End of string */
4560 /* Return 0 if we call do_spec_1 and that returns -1. */
4564 register const char *p;
4566 const char *filter, *body = NULL, *endbody = NULL;
4570 int include_blanks = 1;
4573 /* A '^' after the open-brace means to not give blanks before args. */
4574 include_blanks = 0, ++p;
4577 /* A `|' after the open-brace means,
4578 if the test fails, output a single minus sign rather than nothing.
4579 This is used in %{|!pipe:...}. */
4583 negate = suffix = 0;
4586 /* A `!' after the open-brace negates the condition:
4587 succeed if the specified switch is not present. */
4591 /* A `.' after the open-brace means test against the current suffix. */
4601 while (*p != ':' && *p != '}' && *p != '|') p++;
4603 if (*p == '|' && pipe_p)
4610 register int count = 1;
4611 register const char *q = p;
4613 while (*q++ != ':') continue;
4629 body = p, endbody = p+1;
4634 int found = (input_suffix != 0
4635 && (long) strlen (input_suffix) == (long)(p - filter)
4636 && strncmp (input_suffix, filter, p - filter) == 0);
4642 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4645 else if (p[-1] == '*' && p[0] == '}')
4647 /* Substitute all matching switches as separate args. */
4650 for (i = 0; i < n_switches; i++)
4651 if (!strncmp (switches[i].part1, filter, p - filter)
4652 && check_live_switch (i, p - filter))
4653 give_switch (i, 0, include_blanks);
4657 /* Test for presence of the specified switch. */
4661 /* If name specified ends in *, as in {x*:...},
4662 check for %* and handle that case. */
4663 if (p[-1] == '*' && !negate)
4666 const char *r = body;
4668 /* First see whether we have %*. */
4672 if (*r == '%' && r[1] == '*')
4676 /* If we do, handle that case. */
4679 /* Substitute all matching switches as separate args.
4680 But do this by substituting for %*
4681 in the text that follows the colon. */
4683 unsigned hard_match_len = p - filter - 1;
4684 char *string = save_string (body, endbody - body - 1);
4686 for (i = 0; i < n_switches; i++)
4687 if (!strncmp (switches[i].part1, filter, hard_match_len)
4688 && check_live_switch (i, -1))
4690 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4691 /* Pass any arguments this switch has. */
4692 give_switch (i, 1, 1);
4695 /* We didn't match. Try again. */
4702 /* If name specified ends in *, as in {x*:...},
4703 check for presence of any switch name starting with x. */
4706 for (i = 0; i < n_switches; i++)
4708 unsigned hard_match_len = p - filter - 1;
4710 if (!strncmp (switches[i].part1, filter, hard_match_len)
4711 && check_live_switch (i, hard_match_len))
4717 /* Otherwise, check for presence of exact name specified. */
4720 for (i = 0; i < n_switches; i++)
4722 if (!strncmp (switches[i].part1, filter, p - filter)
4723 && switches[i].part1[p - filter] == 0
4724 && check_live_switch (i, -1))
4732 /* If it is as desired (present for %{s...}, absent for %{!s...})
4733 then substitute either the switch or the specified
4734 conditional text. */
4735 if (present != negate)
4739 give_switch (i, 0, include_blanks);
4743 if (do_spec_1 (save_string (body, endbody - body - 1),
4750 /* Here if a %{|...} conditional fails: output a minus sign,
4751 which means "standard output" or "standard input". */
4752 do_spec_1 ("-", 0, NULL_PTR);
4757 /* We didn't match; try again. */
4764 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4765 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4766 spec, or -1 if either exact match or %* is used.
4768 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4769 whose value does not begin with "no-" is obsoleted by the same value
4770 with the "no-", similarly for a switch with the "no-" prefix. */
4773 check_live_switch (switchnum, prefix_length)
4777 const char *name = switches[switchnum].part1;
4780 /* In the common case of {<at-most-one-letter>*}, a negating
4781 switch would always match, so ignore that case. We will just
4782 send the conflicting switches to the compiler phase. */
4783 if (prefix_length >= 0 && prefix_length <= 1)
4786 /* If we already processed this switch and determined if it was
4787 live or not, return our past determination. */
4788 if (switches[switchnum].live_cond != 0)
4789 return switches[switchnum].live_cond > 0;
4791 /* Now search for duplicate in a manner that depends on the name. */
4795 for (i = switchnum + 1; i < n_switches; i++)
4796 if (switches[i].part1[0] == 'O')
4798 switches[switchnum].validated = 1;
4799 switches[switchnum].live_cond = -1;
4804 case 'W': case 'f': case 'm':
4805 if (! strncmp (name + 1, "no-", 3))
4807 /* We have Xno-YYY, search for XYYY. */
4808 for (i = switchnum + 1; i < n_switches; i++)
4809 if (switches[i].part1[0] == name[0]
4810 && ! strcmp (&switches[i].part1[1], &name[4]))
4812 switches[switchnum].validated = 1;
4813 switches[switchnum].live_cond = -1;
4819 /* We have XYYY, search for Xno-YYY. */
4820 for (i = switchnum + 1; i < n_switches; i++)
4821 if (switches[i].part1[0] == name[0]
4822 && switches[i].part1[1] == 'n'
4823 && switches[i].part1[2] == 'o'
4824 && switches[i].part1[3] == '-'
4825 && !strcmp (&switches[i].part1[4], &name[1]))
4827 switches[switchnum].validated = 1;
4828 switches[switchnum].live_cond = -1;
4835 /* Otherwise the switch is live. */
4836 switches[switchnum].live_cond = 1;
4840 /* Pass a switch to the current accumulating command
4841 in the same form that we received it.
4842 SWITCHNUM identifies the switch; it is an index into
4843 the vector of switches gcc received, which is `switches'.
4844 This cannot fail since it never finishes a command line.
4846 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4848 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4852 give_switch (switchnum, omit_first_word, include_blanks)
4854 int omit_first_word;
4857 if (!omit_first_word)
4859 do_spec_1 ("-", 0, NULL_PTR);
4860 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4863 if (switches[switchnum].args != 0)
4866 for (p = switches[switchnum].args; *p; p++)
4869 do_spec_1 (" ", 0, NULL_PTR);
4870 do_spec_1 (*p, 1, NULL_PTR);
4874 do_spec_1 (" ", 0, NULL_PTR);
4875 switches[switchnum].validated = 1;
4878 /* Search for a file named NAME trying various prefixes including the
4879 user's -B prefix and some standard ones.
4880 Return the absolute file name found. If nothing is found, return NAME. */
4888 /* Try multilib_dir if it is defined. */
4889 if (multilib_dir != NULL)
4893 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4894 strcpy (try, multilib_dir);
4895 strcat (try, dir_separator_str);
4898 newname = find_a_file (&startfile_prefixes, try, R_OK);
4900 /* If we don't find it in the multi library dir, then fall
4901 through and look for it in the normal places. */
4902 if (newname != NULL)
4906 newname = find_a_file (&startfile_prefixes, name, R_OK);
4907 return newname ? newname : name;
4910 /* Determine whether a directory exists. If LINKER, return 0 for
4911 certain fixed names not needed by the linker. If not LINKER, it is
4912 only important to return 0 if the host machine has a small ARG_MAX
4916 is_directory (path1, path2, linker)
4921 int len1 = strlen (path1);
4922 int len2 = strlen (path2);
4923 char *path = (char *) alloca (3 + len1 + len2);
4927 #ifndef SMALL_ARG_MAX
4932 /* Construct the path from the two parts. Ensure the string ends with "/.".
4933 The resulting path will be a directory even if the given path is a
4935 memcpy (path, path1, len1);
4936 memcpy (path + len1, path2, len2);
4937 cp = path + len1 + len2;
4938 if (!IS_DIR_SEPARATOR (cp[-1]))
4939 *cp++ = DIR_SEPARATOR;
4943 /* Exclude directories that the linker is known to search. */
4946 && strcmp (path, concat (dir_separator_str, "lib",
4947 dir_separator_str, ".", NULL_PTR)) == 0)
4949 && strcmp (path, concat (dir_separator_str, "usr",
4950 dir_separator_str, "lib",
4951 dir_separator_str, ".", NULL_PTR)) == 0)))
4954 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4957 /* On fatal signals, delete all the temporary files. */
4960 fatal_error (signum)
4963 signal (signum, SIG_DFL);
4964 delete_failure_queue ();
4965 delete_temp_files ();
4966 /* Get the same signal again, this time not handled,
4967 so its normal effect occurs. */
4968 kill (getpid (), signum);
4971 extern int main PROTO ((int, char **));
4981 int linker_was_run = 0;
4982 char *explicit_link_files;
4985 struct user_specs *uptr;
4987 p = argv[0] + strlen (argv[0]);
4988 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
4992 #ifdef HAVE_LC_MESSAGES
4993 setlocale (LC_MESSAGES, "");
4995 (void) bindtextdomain (PACKAGE, localedir);
4996 (void) textdomain (PACKAGE);
4998 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4999 signal (SIGINT, fatal_error);
5001 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5002 signal (SIGHUP, fatal_error);
5004 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5005 signal (SIGTERM, fatal_error);
5007 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5008 signal (SIGPIPE, fatal_error);
5012 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
5014 obstack_init (&obstack);
5016 /* Build multilib_select, et. al from the separate lines that make up each
5017 multilib selection. */
5019 char **q = multilib_raw;
5022 obstack_init (&multilib_obstack);
5023 while ((p = *q++) != (char *) 0)
5024 obstack_grow (&multilib_obstack, p, strlen (p));
5026 obstack_1grow (&multilib_obstack, 0);
5027 multilib_select = obstack_finish (&multilib_obstack);
5029 q = multilib_matches_raw;
5030 while ((p = *q++) != (char *) 0)
5031 obstack_grow (&multilib_obstack, p, strlen (p));
5033 obstack_1grow (&multilib_obstack, 0);
5034 multilib_matches = obstack_finish (&multilib_obstack);
5038 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
5042 obstack_1grow (&multilib_obstack, ' ');
5043 obstack_grow (&multilib_obstack,
5044 multilib_defaults_raw[i],
5045 strlen (multilib_defaults_raw[i]));
5049 obstack_1grow (&multilib_obstack, 0);
5050 multilib_defaults = obstack_finish (&multilib_obstack);
5053 /* Set up to remember the pathname of gcc and any options
5054 needed for collect. We use argv[0] instead of programname because
5055 we need the complete pathname. */
5056 obstack_init (&collect_obstack);
5057 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
5058 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
5059 putenv (obstack_finish (&collect_obstack));
5061 #ifdef INIT_ENVIRONMENT
5062 /* Set up any other necessary machine specific environment variables. */
5063 putenv (INIT_ENVIRONMENT);
5066 /* Choose directory for temp files. */
5068 #ifndef MKTEMP_EACH_FILE
5069 temp_filename = choose_temp_base ();
5070 temp_filename_length = strlen (temp_filename);
5073 /* Make a table of what switches there are (switches, n_switches).
5074 Make a table of specified input files (infiles, n_infiles).
5075 Decode switches that are handled locally. */
5077 process_command (argc, argv);
5082 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5084 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5085 sizeof ("COLLECT_GCC_OPTIONS=")-1);
5088 for (i = 0; (int)i < n_switches; i++)
5093 obstack_grow (&collect_obstack, " ", 1);
5096 obstack_grow (&collect_obstack, "'-", 2);
5097 q = switches[i].part1;
5098 while ((p = index (q,'\'')))
5100 obstack_grow (&collect_obstack, q, p-q);
5101 obstack_grow (&collect_obstack, "'\\''", 4);
5104 obstack_grow (&collect_obstack, q, strlen (q));
5105 obstack_grow (&collect_obstack, "'", 1);
5107 for (args = switches[i].args; args && *args; args++)
5109 obstack_grow (&collect_obstack, " '", 2);
5111 while ((p = index (q,'\'')))
5113 obstack_grow (&collect_obstack, q, p-q);
5114 obstack_grow (&collect_obstack, "'\\''", 4);
5117 obstack_grow (&collect_obstack, q, strlen (q));
5118 obstack_grow (&collect_obstack, "'", 1);
5121 obstack_grow (&collect_obstack, "\0", 1);
5122 putenv (obstack_finish (&collect_obstack));
5125 /* Initialize the vector of specs to just the default.
5126 This means one element containing 0s, as a terminator. */
5128 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5129 bcopy ((char *) default_compilers, (char *) compilers,
5130 sizeof default_compilers);
5131 n_compilers = n_default_compilers;
5133 /* Read specs from a file if there is one. */
5135 machine_suffix = concat (spec_machine, dir_separator_str,
5136 spec_version, dir_separator_str, NULL_PTR);
5137 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5139 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5140 /* Read the specs file unless it is a default one. */
5141 if (specs_file != 0 && strcmp (specs_file, "specs"))
5142 read_specs (specs_file, TRUE);
5146 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5147 for any override of as, ld and libraries. */
5148 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5149 + strlen (just_machine_suffix)
5150 + sizeof ("specs"));
5152 strcpy (specs_file, standard_exec_prefix);
5153 strcat (specs_file, just_machine_suffix);
5154 strcat (specs_file, "specs");
5155 if (access (specs_file, R_OK) == 0)
5156 read_specs (specs_file, TRUE);
5158 /* If not cross-compiling, look for startfiles in the standard places. */
5159 if (*cross_compile == '0')
5161 #ifdef MD_EXEC_PREFIX
5162 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
5163 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
5166 #ifdef MD_STARTFILE_PREFIX
5167 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5171 #ifdef MD_STARTFILE_PREFIX_1
5172 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5176 /* If standard_startfile_prefix is relative, base it on
5177 standard_exec_prefix. This lets us move the installed tree
5178 as a unit. If GCC_EXEC_PREFIX is defined, base
5179 standard_startfile_prefix on that as well. */
5180 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5181 || *standard_startfile_prefix == '$'
5182 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5183 /* Check for disk name on MS-DOS-based systems. */
5184 || (standard_startfile_prefix[1] == ':'
5185 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5188 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5192 if (gcc_exec_prefix)
5193 add_prefix (&startfile_prefixes,
5194 concat (gcc_exec_prefix, machine_suffix,
5195 standard_startfile_prefix, NULL_PTR),
5196 NULL_PTR, 0, 0, NULL_PTR);
5197 add_prefix (&startfile_prefixes,
5198 concat (standard_exec_prefix,
5200 standard_startfile_prefix, NULL_PTR),
5201 NULL_PTR, 0, 0, NULL_PTR);
5204 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5205 "BINUTILS", 0, 0, NULL_PTR);
5206 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5207 "BINUTILS", 0, 0, NULL_PTR);
5208 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5209 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
5214 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5215 add_prefix (&startfile_prefixes,
5216 concat (gcc_exec_prefix, machine_suffix,
5217 standard_startfile_prefix, NULL_PTR),
5218 "BINUTILS", 0, 0, NULL_PTR);
5221 /* Process any user specified specs in the order given on the command
5223 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5225 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5226 read_specs (filename ? filename : uptr->filename, FALSE);
5229 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5230 if (gcc_exec_prefix)
5232 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5233 + strlen (spec_version)
5234 + strlen (spec_machine) + 3);
5235 strcpy (temp, gcc_exec_prefix);
5236 strcat (temp, spec_machine);
5237 strcat (temp, dir_separator_str);
5238 strcat (temp, spec_version);
5239 strcat (temp, dir_separator_str);
5240 gcc_exec_prefix = temp;
5243 /* Now we have the specs.
5244 Set the `valid' bits for switches that match anything in any spec. */
5246 validate_all_switches ();
5248 /* Now that we have the switches and the specs, set
5249 the subdirectory based on the options. */
5250 set_multilib_dir ();
5252 /* Warn about any switches that no pass was interested in. */
5254 for (i = 0; (int)i < n_switches; i++)
5255 if (! switches[i].validated)
5256 error ("unrecognized option `-%s'", switches[i].part1);
5258 /* Obey some of the options. */
5260 if (print_search_dirs)
5262 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
5263 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
5264 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
5268 if (print_file_name)
5270 printf ("%s\n", find_file (print_file_name));
5274 if (print_prog_name)
5276 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5277 printf ("%s\n", (newname ? newname : print_prog_name));
5281 if (print_multi_lib)
5283 print_multilib_info ();
5287 if (print_multi_directory)
5289 if (multilib_dir == NULL)
5292 printf ("%s\n", multilib_dir);
5296 if (print_help_list)
5302 printf ("\nFor bug reporting instructions, please see:\n");
5303 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>.\n");
5308 /* We do not exit here. Instead we have created a fake input file
5309 called 'help-dummy' which needs to be compiled, and we pass this
5310 on the the various sub-processes, along with the --help switch. */
5317 /* compiler_version is truncated at the first space when initialized
5318 from version string, so truncate version_string at the first space
5319 before comparing. */
5320 for (n = 0; version_string[n]; n++)
5321 if (version_string[n] == ' ')
5324 if (! strncmp (version_string, compiler_version, n)
5325 && compiler_version[n] == 0)
5326 notice ("gcc version %s\n", version_string);
5328 notice ("gcc driver version %s executing gcc version %s\n",
5329 version_string, compiler_version);
5335 if (n_infiles == added_libraries)
5336 fatal ("No input files");
5338 /* Make a place to record the compiler output file names
5339 that correspond to the input files. */
5342 i += lang_specific_extra_outfiles;
5343 outfiles = (const char **) xcalloc (i, sizeof (char *));
5345 /* Record which files were specified explicitly as link input. */
5347 explicit_link_files = xcalloc (1, n_infiles);
5349 for (i = 0; (int)i < n_infiles; i++)
5351 register struct compiler *cp = 0;
5352 int this_file_error = 0;
5354 /* Tell do_spec what to substitute for %i. */
5356 input_filename = infiles[i].name;
5357 input_filename_length = strlen (input_filename);
5358 input_file_number = i;
5360 /* Use the same thing in %o, unless cp->spec says otherwise. */
5362 outfiles[i] = input_filename;
5364 /* Figure out which compiler from the file's suffix. */
5366 cp = lookup_compiler (infiles[i].name, input_filename_length,
5367 infiles[i].language);
5371 /* Ok, we found an applicable compiler. Run its spec. */
5372 /* First say how much of input_filename to substitute for %b */
5373 register const char *p;
5376 if (cp->spec[0][0] == '#')
5377 error ("%s: %s compiler not installed on this system",
5378 input_filename, &cp->spec[0][1]);
5380 input_basename = input_filename;
5381 for (p = input_filename; *p; p++)
5382 if (IS_DIR_SEPARATOR (*p))
5383 input_basename = p + 1;
5385 /* Find a suffix starting with the last period,
5386 and set basename_length to exclude that suffix. */
5387 basename_length = strlen (input_basename);
5388 p = input_basename + basename_length;
5389 while (p != input_basename && *p != '.') --p;
5390 if (*p == '.' && p != input_basename)
5392 basename_length = p - input_basename;
5393 input_suffix = p + 1;
5399 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5401 len += strlen (cp->spec[j]);
5404 char *p1 = (char *) xmalloc (len + 1);
5407 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5410 strcpy (p1 + len, cp->spec[j]);
5411 len += strlen (cp->spec[j]);
5414 value = do_spec (p1);
5418 this_file_error = 1;
5421 /* If this file's name does not contain a recognized suffix,
5422 record it as explicit linker input. */
5425 explicit_link_files[i] = 1;
5427 /* Clear the delete-on-failure queue, deleting the files in it
5428 if this compilation failed. */
5430 if (this_file_error)
5432 delete_failure_queue ();
5435 /* If this compilation succeeded, don't delete those files later. */
5436 clear_failure_queue ();
5439 if (error_count == 0)
5441 /* Make sure INPUT_FILE_NUMBER points to first available open
5443 input_file_number = n_infiles;
5444 if (lang_specific_pre_link ())
5448 /* Run ld to link all the compiler output files. */
5450 if (error_count == 0)
5452 int tmp = execution_count;
5454 /* We'll use ld if we can't find collect2. */
5455 if (! strcmp (linker_name_spec, "collect2"))
5457 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5459 linker_name_spec = "ld";
5461 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5463 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
5464 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
5466 value = do_spec (link_command_spec);
5469 linker_was_run = (tmp != execution_count);
5472 /* Warn if a -B option was specified but the prefix was never used. */
5473 unused_prefix_warnings (&exec_prefixes);
5474 unused_prefix_warnings (&startfile_prefixes);
5476 /* If options said don't run linker,
5477 complain about input files to be given to the linker. */
5479 if (! linker_was_run && error_count == 0)
5480 for (i = 0; (int)i < n_infiles; i++)
5481 if (explicit_link_files[i])
5482 error ("%s: linker input file unused since linking not done",
5485 /* Delete some or all of the temporary files we made. */
5488 delete_failure_queue ();
5489 delete_temp_files ();
5491 if (print_help_list)
5493 printf ("\nFor bug reporting instructions, please see:\n");
5494 printf ("<URL:http://www.gnu.org/software/gcc/faq.html#bugreport>\n");
5497 return (signal_count != 0 ? 2
5498 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5502 /* Find the proper compilation spec for the file name NAME,
5503 whose length is LENGTH. LANGUAGE is the specified language,
5504 or 0 if this file is to be passed to the linker. */
5506 static struct compiler *
5507 lookup_compiler (name, length, language)
5510 const char *language;
5512 struct compiler *cp;
5514 /* If this was specified by the user to be a linker input, indicate that. */
5515 if (language != 0 && language[0] == '*')
5518 /* Otherwise, look for the language, if one is spec'd. */
5521 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5522 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5525 error ("language %s not recognized", language);
5529 /* Look for a suffix. */
5530 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5532 if (/* The suffix `-' matches only the file name `-'. */
5533 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5534 || (strlen (cp->suffix) < length
5535 /* See if the suffix matches the end of NAME. */
5537 && ((!strcmp (cp->suffix,
5538 name + length - strlen (cp->suffix))
5539 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5540 && !strcasecmp (cp->suffix,
5541 name + length - strlen (cp->suffix)))
5543 && !strcmp (cp->suffix,
5544 name + length - strlen (cp->suffix))
5548 if (cp->spec[0][0] == '@')
5550 struct compiler *new;
5552 /* An alias entry maps a suffix to a language.
5553 Search for the language; pass 0 for NAME and LENGTH
5554 to avoid infinite recursion if language not found.
5555 Construct the new compiler spec. */
5556 language = cp->spec[0] + 1;
5557 new = (struct compiler *) xmalloc (sizeof (struct compiler));
5558 new->suffix = cp->suffix;
5560 lookup_compiler (NULL_PTR, 0, language)->spec,
5565 /* A non-alias entry: return it. */
5574 save_string (s, len)
5578 register char *result = xmalloc (len + 1);
5580 bcopy (s, result, len);
5586 pfatal_with_name (name)
5589 perror_with_name (name);
5590 delete_temp_files ();
5595 perror_with_name (name)
5598 error ("%s: %s", name, xstrerror (errno));
5602 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5603 const char *errmsg_fmt;
5604 const char *errmsg_arg;
5608 int save_errno = errno;
5610 /* Space for trailing '\0' is in %s. */
5611 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5612 sprintf (msg, errmsg_fmt, errmsg_arg);
5618 pfatal_with_name (errmsg_fmt);
5621 /* Output an error message and exit */
5626 fatal ("Internal gcc abort.");
5629 /* Output an error message and exit */
5632 fatal VPROTO((const char *msgid, ...))
5634 #ifndef ANSI_PROTOTYPES
5639 VA_START (ap, msgid);
5641 #ifndef ANSI_PROTOTYPES
5642 msgid = va_arg (ap, const char *);
5645 fprintf (stderr, "%s: ", programname);
5646 vfprintf (stderr, _(msgid), ap);
5648 fprintf (stderr, "\n");
5649 delete_temp_files ();
5654 error VPROTO((const char *msgid, ...))
5656 #ifndef ANSI_PROTOTYPES
5661 VA_START (ap, msgid);
5663 #ifndef ANSI_PROTOTYPES
5664 msgid = va_arg (ap, const char *);
5667 fprintf (stderr, "%s: ", programname);
5668 vfprintf (stderr, _(msgid), ap);
5671 fprintf (stderr, "\n");
5675 notice VPROTO((const char *msgid, ...))
5677 #ifndef ANSI_PROTOTYPES
5682 VA_START (ap, msgid);
5684 #ifndef ANSI_PROTOTYPES
5685 msgid = va_arg (ap, const char *);
5688 vfprintf (stderr, _(msgid), ap);
5694 validate_all_switches ()
5696 struct compiler *comp;
5697 register const char *p;
5699 struct spec_list *spec;
5701 for (comp = compilers; comp->spec[0]; comp++)
5704 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5708 if (c == '%' && *p == '{')
5709 /* We have a switch spec. */
5710 validate_switches (p + 1);
5714 /* look through the linked list of specs read from the specs file */
5715 for (spec = specs; spec ; spec = spec->next)
5717 p = *(spec->ptr_spec);
5719 if (c == '%' && *p == '{')
5720 /* We have a switch spec. */
5721 validate_switches (p + 1);
5724 p = link_command_spec;
5726 if (c == '%' && *p == '{')
5727 /* We have a switch spec. */
5728 validate_switches (p + 1);
5731 /* Look at the switch-name that comes after START
5732 and mark as valid all supplied switches that match it. */
5735 validate_switches (start)
5738 register const char *p = start;
5753 while (*p != ':' && *p != '}') p++;
5757 else if (p[-1] == '*')
5759 /* Mark all matching switches as valid. */
5761 for (i = 0; i < n_switches; i++)
5762 if (!strncmp (switches[i].part1, filter, p - filter))
5763 switches[i].validated = 1;
5767 /* Mark an exact matching switch as valid. */
5768 for (i = 0; i < n_switches; i++)
5770 if (!strncmp (switches[i].part1, filter, p - filter)
5771 && switches[i].part1[p - filter] == 0)
5772 switches[i].validated = 1;
5777 /* Check whether a particular argument was used. The first time we
5778 canonicalize the switches to keep only the ones we care about. */
5792 static struct mswitchstr *mswitches;
5793 static int n_mswitches;
5798 struct mswitchstr *matches;
5802 /* Break multilib_matches into the component strings of string and replacement
5804 for (q = multilib_matches; *q != '\0'; q++)
5808 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5810 q = multilib_matches;
5821 matches[i].len = q - matches[i].str;
5823 matches[i].replace = ++q;
5824 while (*q != ';' && *q != '\0')
5830 matches[i].rep_len = q - matches[i].replace;
5838 /* Now build a list of the replacement string for switches that we care
5839 about. Make sure we allocate at least one entry. This prevents
5840 xmalloc from calling fatal, and prevents us from re-executing this
5843 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5844 * (n_switches ? n_switches : 1));
5845 for (i = 0; i < n_switches; i++)
5847 int xlen = strlen (switches[i].part1);
5848 for (j = 0; j < cnt; j++)
5849 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5851 mswitches[n_mswitches].str = matches[j].replace;
5852 mswitches[n_mswitches].len = matches[j].rep_len;
5853 mswitches[n_mswitches].replace = (char *)0;
5854 mswitches[n_mswitches].rep_len = 0;
5861 for (i = 0; i < n_mswitches; i++)
5862 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5869 default_arg (p, len)
5875 for (start = multilib_defaults; *start != '\0'; start = end+1)
5877 while (*start == ' ' || *start == '\t')
5883 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5886 if ((end - start) == len && strncmp (p, start, len) == 0)
5896 /* Work out the subdirectory to use based on the
5897 options. The format of multilib_select is a list of elements.
5898 Each element is a subdirectory name followed by a list of options
5899 followed by a semicolon. gcc will consider each line in turn. If
5900 none of the options beginning with an exclamation point are
5901 present, and all of the other options are present, that
5902 subdirectory will be used. */
5907 char *p = multilib_select;
5909 char *this_path, *this_arg;
5915 /* Ignore newlines. */
5922 /* Get the initial path. */
5930 this_path_len = p - this_path;
5932 /* Check the arguments. */
5947 while (*p != ' ' && *p != ';')
5954 if (*this_arg != '!')
5962 /* If this is a default argument, we can just ignore it.
5963 This is true even if this_arg begins with '!'. Beginning
5964 with '!' does not mean that this argument is necessarily
5965 inappropriate for this library: it merely means that
5966 there is a more specific library which uses this
5967 argument. If this argument is a default, we need not
5968 consider that more specific library. */
5969 if (! default_arg (this_arg, p - this_arg))
5971 ok = used_arg (this_arg, p - this_arg);
5982 if (this_path_len != 1
5983 || this_path[0] != '.')
5985 char * new_multilib_dir = xmalloc (this_path_len + 1);
5986 strncpy (new_multilib_dir, this_path, this_path_len);
5987 new_multilib_dir[this_path_len] = '\0';
5988 multilib_dir = new_multilib_dir;
5997 /* Print out the multiple library subdirectory selection
5998 information. This prints out a series of lines. Each line looks
5999 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6000 required. Only the desired options are printed out, the negative
6001 matches. The options are print without a leading dash. There are
6002 no spaces to make it easy to use the information in the shell.
6003 Each subdirectory is printed only once. This assumes the ordering
6004 generated by the genmultilib script. */
6007 print_multilib_info ()
6009 char *p = multilib_select;
6010 char *last_path = 0, *this_path;
6012 int last_path_len = 0;
6016 /* Ignore newlines. */
6023 /* Get the initial path. */
6032 /* If this is a duplicate, skip it. */
6033 skip = (last_path != 0 && p - this_path == last_path_len
6034 && ! strncmp (last_path, this_path, last_path_len));
6036 last_path = this_path;
6037 last_path_len = p - this_path;
6039 /* If this directory requires any default arguments, we can skip
6040 it. We will already have printed a directory identical to
6041 this one which does not require that default argument. */
6059 while (*q != ' ' && *q != ';')
6067 && default_arg (arg, q - arg))
6082 for (p1 = last_path; p1 < p; p1++)
6101 use_arg = *p != '!';
6106 while (*p != ' ' && *p != ';')
6121 /* If there are extra options, print them now */
6122 if (multilib_extra && *multilib_extra)
6124 int print_at = TRUE;
6127 for (q = multilib_extra; *q != '\0'; q++)