1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 This paragraph is here to try to keep Sun CC from dying.
23 The number of chars here seems crucial!!!! */
25 /* This program is the user interface to the C compiler and possibly to
26 other compilers. It is used because compilation is a complicated procedure
27 which involves running several programs and passing temporary files between
28 them, forwarding the users switches to those programs selectively,
29 and deleting the temporary files at the end.
31 CC recognizes how to compile each input file by suffixes in the file names.
32 Once it knows which kind of compilation to perform, the procedure for
33 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 #if defined (HAVE_DECL_GETRUSAGE) && !HAVE_DECL_GETRUSAGE
51 extern int getrusage PARAMS ((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"
69 /* FIXME: the location independence code for VMS is hairier than this,
70 and hasn't been written. */
76 static char dir_separator_str[] = { DIR_SEPARATOR, 0 };
78 #define obstack_chunk_alloc xmalloc
79 #define obstack_chunk_free free
81 #ifndef GET_ENV_PATH_LIST
82 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
85 /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
86 #ifndef LIBRARY_PATH_ENV
87 #define LIBRARY_PATH_ENV "LIBRARY_PATH"
91 #define kill(p,s) raise(s)
94 /* If a stage of compilation returns an exit status >= 1,
95 compilation of that file ceases. */
97 #define MIN_FATAL_STATUS 1
99 /* Flag saying to pass the greatest exit code returned by a sub-process
100 to the calling program. */
101 static int pass_exit_codes;
103 /* Flag saying to print the directories gcc will search through looking for
104 programs, libraries, etc. */
106 static int print_search_dirs;
108 /* Flag saying to print the full filename of this file
109 as found through our usual search mechanism. */
111 static const char *print_file_name = NULL;
113 /* As print_file_name, but search for executable file. */
115 static const char *print_prog_name = NULL;
117 /* Flag saying to print the relative path we'd use to
118 find libgcc.a given the current compiler flags. */
120 static int print_multi_directory;
122 /* Flag saying to print the list of subdirectories and
123 compiler flags used to select them in a standard form. */
125 static int print_multi_lib;
127 /* Flag saying to print the command line options understood by gcc and its
130 static int print_help_list;
132 /* Flag indicating whether we should print the command and arguments */
134 static int verbose_flag;
136 /* Flag indicating whether we should report subprocess execution times
137 (if this is supported by the system - see pexecute.c). */
139 static int report_times;
141 /* Nonzero means write "temp" files in source directory
142 and use the source file's name in them, and don't delete them. */
144 static int save_temps_flag;
146 /* The compiler version. */
148 static const char *compiler_version;
150 /* The target version specified with -V */
152 static const char *spec_version = DEFAULT_TARGET_VERSION;
154 /* The target machine specified with -b. */
156 static const char *spec_machine = DEFAULT_TARGET_MACHINE;
158 /* Nonzero if cross-compiling.
159 When -b is used, the value comes from the `specs' file. */
162 static const char *cross_compile = "1";
164 static const char *cross_compile = "0";
167 /* The number of errors that have occurred; the link phase will not be
168 run if this is non-zero. */
169 static int error_count = 0;
171 /* Greatest exit code of sub-processes that has been encountered up to
173 static int greatest_status = 1;
175 /* This is the obstack which we use to allocate many strings. */
177 static struct obstack obstack;
179 /* This is the obstack to build an environment variable to pass to
180 collect2 that describes all of the relevant switches of what to
181 pass the compiler in building the list of pointers to constructors
184 static struct obstack collect_obstack;
186 /* These structs are used to collect resource usage information for
188 #ifdef HAVE_GETRUSAGE
189 static struct rusage rus, prus;
192 /* Forward declaration for prototypes. */
195 static void init_spec PARAMS ((void));
197 static char **split_directories PARAMS ((const char *, int *));
198 static void free_split_directories PARAMS ((char **));
199 static char *make_relative_prefix PARAMS ((const char *, const char *, const char *));
201 static void store_arg PARAMS ((const char *, int, int));
202 static char *load_specs PARAMS ((const char *));
203 static void read_specs PARAMS ((const char *, int));
204 static void set_spec PARAMS ((const char *, const char *));
205 static struct compiler *lookup_compiler PARAMS ((const char *, size_t, const char *));
206 static char *build_search_list PARAMS ((struct path_prefix *, const char *, int));
207 static void putenv_from_prefixes PARAMS ((struct path_prefix *, const char *));
208 static int access_check PARAMS ((const char *, int));
209 static char *find_a_file PARAMS ((struct path_prefix *, const char *, int));
210 static void add_prefix PARAMS ((struct path_prefix *, const char *,
211 const char *, int, int, int *));
212 static void translate_options PARAMS ((int *, const char *const **));
213 static char *skip_whitespace PARAMS ((char *));
214 static void record_temp_file PARAMS ((const char *, int, int));
215 static void delete_if_ordinary PARAMS ((const char *));
216 static void delete_temp_files PARAMS ((void));
217 static void delete_failure_queue PARAMS ((void));
218 static void clear_failure_queue PARAMS ((void));
219 static int check_live_switch PARAMS ((int, int));
220 static const char *handle_braces PARAMS ((const char *));
221 static char *save_string PARAMS ((const char *, int));
222 static int do_spec_1 PARAMS ((const char *, int, const char *));
223 static const char *find_file PARAMS ((const char *));
224 static int is_directory PARAMS ((const char *, const char *, int));
225 static void validate_switches PARAMS ((const char *));
226 static void validate_all_switches PARAMS ((void));
227 static void give_switch PARAMS ((int, int, int));
228 static int used_arg PARAMS ((const char *, int));
229 static int default_arg PARAMS ((const char *, int));
230 static void set_multilib_dir PARAMS ((void));
231 static void print_multilib_info PARAMS ((void));
232 static void pfatal_with_name PARAMS ((const char *)) ATTRIBUTE_NORETURN;
233 static void perror_with_name PARAMS ((const char *));
234 static void pfatal_pexecute PARAMS ((const char *, const char *))
236 static void error PARAMS ((const char *, ...))
238 static void notice PARAMS ((const char *, ...))
240 static void display_help PARAMS ((void));
241 static void add_preprocessor_option PARAMS ((const char *, int));
242 static void add_assembler_option PARAMS ((const char *, int));
243 static void add_linker_option PARAMS ((const char *, int));
244 static void process_command PARAMS ((int, const char *const *));
245 static int execute PARAMS ((void));
246 static void clear_args PARAMS ((void));
247 static void fatal_error PARAMS ((int));
248 static void set_input PARAMS ((const char *));
250 /* Specs are strings containing lines, each of which (if not blank)
251 is made up of a program name, and arguments separated by spaces.
252 The program name must be exact and start from root, since no path
253 is searched and it is unreliable to depend on the current working directory.
254 Redirection of input or output is not supported; the subprograms must
255 accept filenames saying what files to read and write.
257 In addition, the specs can contain %-sequences to substitute variable text
258 or for conditional text. Here is a table of all defined %-sequences.
259 Note that spaces are not generated automatically around the results of
260 expanding these sequences; therefore, you can concatenate them together
261 or with constant text in a single argument.
263 %% substitute one % into the program name or argument.
264 %i substitute the name of the input file being processed.
265 %b substitute the basename of the input file being processed.
266 This is the substring up to (and not including) the last period
267 and not including the directory.
268 %B same as %b, but include the file suffix (text after the last period).
270 substitute a file name that has suffix SUFFIX and is chosen
271 once per compilation, and mark the argument a la %d. To reduce
272 exposure to denial-of-service attacks, the file name is now
273 chosen in a way that is hard to predict even when previously
274 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
275 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
276 the regexp "[.A-Za-z]*%O"; "%O" is treated exactly as if it
277 had been pre-processed. Previously, %g was simply substituted
278 with a file name chosen once per compilation, without regard
279 to any appended suffix (which was therefore treated just like
280 ordinary text), making such attacks more likely to succeed.
282 like %g, but generates a new temporary file name even if %uSUFFIX
285 substitutes the last file name generated with %uSUFFIX, generating a
286 new one if there is no such last file name. In the absence of any
287 %uSUFFIX, this is just like %gSUFFIX, except they don't share
288 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
289 would involve the generation of two distinct file names, one
290 for each `%g.s' and another for each `%U.s'. Previously, %U was
291 simply substituted with a file name chosen for the previous %u,
292 without regard to any appended suffix.
294 substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
295 writable, and if save-temps is off; otherwise, substitute the name
296 of a temporary file, just like %u. This temporary file is not
297 meant for communication between processes, but rather as a junk
299 %d marks the argument containing or following the %d as a
300 temporary file name, so that that file will be deleted if CC exits
301 successfully. Unlike %g, this contributes no text to the argument.
302 %w marks the argument containing or following the %w as the
303 "output file" of this compilation. This puts the argument
304 into the sequence of arguments that %o will substitute later.
306 like %{...} but mark last argument supplied within
307 as a file to be deleted on failure.
308 %o substitutes the names of all the output files, with spaces
309 automatically placed around them. You should write spaces
310 around the %o as well or the results are undefined.
311 %o is for use in the specs for running the linker.
312 Input files whose names have no recognized suffix are not compiled
313 at all, but they are included among the output files, so they will
315 %O substitutes the suffix for object files. Note that this is
316 handled specially when it immediately follows %g, %u, or %U
317 (with or without a suffix argument) because of the need for
318 those to form complete file names. The handling is such that
319 %O is treated exactly as if it had already been substituted,
320 except that %g, %u, and %U do not currently support additional
321 SUFFIX characters following %O as they would following, for
323 %p substitutes the standard macro predefinitions for the
324 current target machine. Use this when running cpp.
325 %P like %p, but puts `__' before and after the name of each macro.
326 (Except macros that already have __.)
328 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
329 %s current argument is the name of a library or startup file of some sort.
330 Search for that file in a standard list of directories
331 and substitute the full name found.
332 %eSTR Print STR as an error message. STR is terminated by a newline.
333 Use this when inconsistent options are detected.
334 %x{OPTION} Accumulate an option for %X.
335 %X Output the accumulated linker options specified by compilations.
336 %Y Output the accumulated assembler options specified by compilations.
337 %Z Output the accumulated preprocessor options specified by compilations.
338 %v1 Substitute the major version number of GCC.
339 (For version 2.5.3, this is 2.)
340 %v2 Substitute the minor version number of GCC.
341 (For version 2.5.3, this is 5.)
342 %v3 Substitute the patch level number of GCC.
343 (For version 2.5.3, this is 3.)
344 %a process ASM_SPEC as a spec.
345 This allows config.h to specify part of the spec for running as.
346 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
347 used here. This can be used to run a post-processor after the
348 assembler has done its job.
349 %D Dump out a -L option for each directory in startfile_prefixes.
350 If multilib_dir is set, extra entries are generated with it affixed.
351 %l process LINK_SPEC as a spec.
352 %L process LIB_SPEC as a spec.
353 %G process LIBGCC_SPEC as a spec.
354 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
355 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
356 %c process SIGNED_CHAR_SPEC as a spec.
357 %C process CPP_SPEC as a spec. A capital C is actually used here.
358 %1 process CC1_SPEC as a spec.
359 %2 process CC1PLUS_SPEC as a spec.
360 %| output "-" if the input for the current command is coming from a pipe.
361 %* substitute the variable part of a matched option. (See below.)
362 Note that each comma in the substituted string is replaced by
364 %{S} substitutes the -S switch, if that switch was given to CC.
365 If that switch was not specified, this substitutes nothing.
366 Here S is a metasyntactic variable.
367 %{S*} substitutes all the switches specified to CC whose names start
368 with -S. This is used for -o, -D, -I, etc; switches that take
369 arguments. CC considers `-o foo' as being one switch whose
370 name starts with `o'. %{o*} would substitute this text,
371 including the space; thus, two arguments would be generated.
372 %{^S*} likewise, but don't put a blank between a switch and any args.
373 %{S*:X} substitutes X if one or more switches whose names start with -S are
374 specified to CC. Note that the tail part of the -S option
375 (i.e. the part matched by the `*') will be substituted for each
376 occurrence of %* within X.
377 %{<S} remove all occurences of -S from the command line.
378 Note - this option is position dependent. % commands in the
379 spec string before this option will see -S, % commands in the
380 spec string after this option will not.
381 %{S:X} substitutes X, but only if the -S switch was given to CC.
382 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
383 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
384 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
385 %{.S:X} substitutes X, but only if processing a file with suffix S.
386 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
387 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
388 combined with ! and . as above binding stronger than the OR.
389 %(Spec) processes a specification defined in a specs file as *Spec:
390 %[Spec] as above, but put __ around -D arguments
392 The conditional text X in a %{S:X} or %{!S:X} construct may contain
393 other nested % constructs or spaces, or even newlines. They are
394 processed as usual, as described above.
396 The -O, -f, -m, and -W switches are handled specifically in these
397 constructs. If another value of -O or the negated form of a -f, -m, or
398 -W switch is found later in the command line, the earlier switch
399 value is ignored, except with {S*} where S is just one letter; this
400 passes all matching options.
402 The character | at the beginning of the predicate text is used to indicate
403 that a command should be piped to the following command, but only if -pipe
406 Note that it is built into CC which switches take arguments and which
407 do not. You might think it would be useful to generalize this to
408 allow each compiler's spec to say which switches take arguments. But
409 this cannot be done in a consistent fashion. CC cannot even decide
410 which input files have been specified without knowing which switches
411 take arguments, and it must know which input files to compile in order
412 to tell which compilers to run.
414 CC also knows implicitly that arguments starting in `-l' are to be
415 treated as compiler output files, and passed to the linker in their
416 proper position among the other output files. */
418 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
420 /* config.h can define ASM_SPEC to provide extra args to the assembler
421 or extra switch-translations. */
426 /* config.h can define ASM_FINAL_SPEC to run a post processor after
427 the assembler has run. */
428 #ifndef ASM_FINAL_SPEC
429 #define ASM_FINAL_SPEC ""
432 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
433 or extra switch-translations. */
438 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
439 or extra switch-translations. */
444 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
445 or extra switch-translations. */
447 #define CC1PLUS_SPEC ""
450 /* config.h can define LINK_SPEC to provide extra args to the linker
451 or extra switch-translations. */
456 /* config.h can define LIB_SPEC to override the default libraries. */
458 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
461 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
464 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
465 /* Have gcc do the search for libgcc.a. */
466 #define LIBGCC_SPEC "libgcc.a%s"
468 #define LIBGCC_SPEC "-lgcc"
472 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
473 #ifndef STARTFILE_SPEC
474 #define STARTFILE_SPEC \
475 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
478 /* config.h can define SWITCHES_NEED_SPACES to control which options
479 require spaces between the option and the argument. */
480 #ifndef SWITCHES_NEED_SPACES
481 #define SWITCHES_NEED_SPACES ""
484 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
486 #define ENDFILE_SPEC ""
489 /* This spec is used for telling cpp whether char is signed or not. */
490 #ifndef SIGNED_CHAR_SPEC
491 /* Use #if rather than ?:
492 because MIPS C compiler rejects like ?: in initializers. */
493 #if DEFAULT_SIGNED_CHAR
494 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
496 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
501 #define LINKER_NAME "collect2"
504 /* Here is the spec for running the linker, after compiling all files. */
506 /* -u* was put back because both BSD and SysV seem to support it. */
507 /* %{static:} simply prevents an error message if the target machine
508 doesn't handle -static. */
509 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
510 scripts which exist in user specified directories, or in standard
512 #ifndef LINK_COMMAND_SPEC
513 #define LINK_COMMAND_SPEC "\
514 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
515 %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
516 %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
517 %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
518 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
521 #ifndef LINK_LIBGCC_SPEC
522 # ifdef LINK_LIBGCC_SPECIAL
523 /* Don't generate -L options for startfile prefix list. */
524 # define LINK_LIBGCC_SPEC ""
526 /* Do generate them. */
527 # define LINK_LIBGCC_SPEC "%D"
531 static const char *cpp_spec = CPP_SPEC;
532 static const char *cpp_predefines = CPP_PREDEFINES;
533 static const char *cc1_spec = CC1_SPEC;
534 static const char *cc1plus_spec = CC1PLUS_SPEC;
535 static const char *signed_char_spec = SIGNED_CHAR_SPEC;
536 static const char *asm_spec = ASM_SPEC;
537 static const char *asm_final_spec = ASM_FINAL_SPEC;
538 static const char *link_spec = LINK_SPEC;
539 static const char *lib_spec = LIB_SPEC;
540 static const char *libgcc_spec = LIBGCC_SPEC;
541 static const char *endfile_spec = ENDFILE_SPEC;
542 static const char *startfile_spec = STARTFILE_SPEC;
543 static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
544 static const char *linker_name_spec = LINKER_NAME;
545 static const char *link_command_spec = LINK_COMMAND_SPEC;
546 static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
548 /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
549 There should be no need to override these in target dependent files,
550 but we need to copy them to the specs file so that newer versions
551 of the GCC driver can correctly drive older tool chains with the
552 appropriate -B options. */
554 static const char *trad_capable_cpp =
555 "%{traditional|ftraditional|traditional-cpp:trad}cpp0";
557 static const char *cpp_options =
558 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
559 %{std*} %{nostdinc*}\
560 %{C} %{v} %{A*} %{I*} %{P} %{$} %I\
561 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
562 %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
563 %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
564 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
565 %{ffast-math:-D__FAST_MATH__}\
566 %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
567 %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0}\
568 %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}}\
569 %{fshow-column} %{fno-show-column}\
570 %{fleading-underscore} %{fno-leading-underscore}\
571 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{U*} %{D*} %{i*} %Z %i\
572 %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}";
574 static const char *cc1_options =
575 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
576 %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
577 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi}\
578 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
579 %{aux-info*} %{Qn:-fno-ident} %{--help:--help}\
580 %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
581 %{fsyntax-only:-o %j}";
583 static const char *asm_options =
584 "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
586 /* Some compilers have limits on line lengths, and the multilib_select
587 and/or multilib_matches strings can be very long, so we build them at
589 static struct obstack multilib_obstack;
590 static const char *multilib_select;
591 static const char *multilib_matches;
592 static const char *multilib_defaults;
593 static const char *multilib_exclusions;
594 #include "multilib.h"
596 /* Check whether a particular argument is a default argument. */
598 #ifndef MULTILIB_DEFAULTS
599 #define MULTILIB_DEFAULTS { "" }
602 static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
606 struct user_specs *next;
607 const char *filename;
610 static struct user_specs *user_specs_head, *user_specs_tail;
612 /* This defines which switch letters take arguments. */
614 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
615 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
616 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
617 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
618 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
619 || (CHAR) == 'B' || (CHAR) == 'b')
621 #ifndef SWITCH_TAKES_ARG
622 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
625 /* This defines which multi-letter switches take arguments. */
627 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
628 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
629 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
630 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
631 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
632 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
633 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
635 #ifndef WORD_SWITCH_TAKES_ARG
636 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
639 #ifdef HAVE_EXECUTABLE_SUFFIX
640 /* This defines which switches stop a full compilation. */
641 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
642 ((CHAR) == 'c' || (CHAR) == 'S')
644 #ifndef SWITCH_CURTAILS_COMPILATION
645 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
646 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
650 /* Record the mapping from file suffixes for compilation specs. */
654 const char *suffix; /* Use this compiler for input files
655 whose names end in this suffix. */
657 const char *spec; /* To use this compiler, run this spec. */
660 /* Pointer to a vector of `struct compiler' that gives the spec for
661 compiling a file, based on its suffix.
662 A file that does not end in any of these suffixes will be passed
663 unchanged to the loader and nothing else will be done to it.
665 An entry containing two 0s is used to terminate the vector.
667 If multiple entries match a file, the last matching one is used. */
669 static struct compiler *compilers;
671 /* Number of entries in `compilers', not counting the null terminator. */
673 static int n_compilers;
675 /* The default list of file name suffixes and their compilation specs. */
677 static struct compiler default_compilers[] =
679 /* Add lists of suffixes of known languages here. If those languages
680 were not present when we built the driver, we will hit these copies
681 and be given a more meaningful error than "file not used since
682 linking is not done". */
683 {".m", "#Objective-C"},
684 {".cc", "#C++"}, {".cxx", "#C++"}, {".cpp", "#C++"},
685 {".c++", "#C++"}, {".C", "#C++"},
686 {".ads", "#Ada"}, {".adb", "#Ada"}, {".ada", "#Ada"},
687 {".f", "#Fortran"}, {".for", "#Fortran"}, {".F", "#Fortran"},
688 {".fpp", "#Fortran"}, {".r", "#Ratfor"},
689 {".p", "#Pascal"}, {".pas", "#Pascal"},
690 {".ch", "#Chill"}, {".chi", "#Chill"},
691 {".java", "#Java"}, {".class", "#Java"},
692 {".zip", "#Java"}, {".jar", "#Java"},
693 /* Next come the entries for C. */
697 "%{E|M|MM:%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)}\
698 %{!E:%{!M:%{!MM:cc1 -lang-c %{ansi:-std=c89} %(cpp_options)\
699 %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
700 as %(asm_options) %{!pipe:%g.s} %A }}}}}"
701 #else /* ! USE_CPPLIB */
702 "%(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options) \
703 %{!M:%{!MM:%{!E:%{!pipe:%g.i} |\n\
704 cc1 %{!pipe:%g.i} %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
705 as %(asm_options) %{!pipe:%g.s} %A }}}}}\n"
706 #endif /* ! USE_CPPLIB */
709 "%{!E:%e-E required when input is from standard input}\
710 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
713 "%{!E:%eCompilation of header file requested} \
714 %(trad_capable_cpp) -lang-c %{ansi:-std=c89} %(cpp_options)"},
715 {".i", "@cpp-output"},
718 cc1 %i %(cc1_options) %{!fsyntax-only:%{!S:-o %{|!pipe:%g.s} |\n\
719 as %(asm_options) %{!pipe:%g.s} %A }}}}}"},
720 {".s", "@assembler"},
722 "%{!M:%{!MM:%{!E:%{!S:as %(asm_options) %i %A }}}}"},
723 {".S", "@assembler-with-cpp"},
724 {"@assembler-with-cpp",
725 "%(trad_capable_cpp) -lang-asm %(cpp_options) \
726 %{!M:%{!MM:%{!E:%{!S: %{!pipe:%g.s} |\n\
727 as %(asm_options) %{!pipe:%g.s} %A }}}}"},
729 /* Mark end of table */
733 /* Number of elements in default_compilers, not counting the terminator. */
735 static int n_default_compilers
736 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
738 /* A vector of options to give to the linker.
739 These options are accumulated by %x,
740 and substituted into the linker command with %X. */
741 static int n_linker_options;
742 static char **linker_options;
744 /* A vector of options to give to the assembler.
745 These options are accumulated by -Wa,
746 and substituted into the assembler command with %Y. */
747 static int n_assembler_options;
748 static char **assembler_options;
750 /* A vector of options to give to the preprocessor.
751 These options are accumulated by -Wp,
752 and substituted into the preprocessor command with %Z. */
753 static int n_preprocessor_options;
754 static char **preprocessor_options;
756 /* Define how to map long options into short ones. */
758 /* This structure describes one mapping. */
761 /* The long option's name. */
763 /* The equivalent short option. */
764 const char *equivalent;
765 /* Argument info. A string of flag chars; NULL equals no options.
766 a => argument required.
767 o => argument optional.
768 j => join argument to equivalent, making one word.
769 * => require other text after NAME as an argument. */
770 const char *arg_info;
773 /* This is the table of mappings. Mappings are tried sequentially
774 for each option encountered; the first one that matches, wins. */
776 struct option_map option_map[] =
778 {"--all-warnings", "-Wall", 0},
779 {"--ansi", "-ansi", 0},
780 {"--assemble", "-S", 0},
781 {"--assert", "-A", "a"},
782 {"--classpath", "-fclasspath=", "aj"},
783 {"--CLASSPATH", "-fCLASSPATH=", "aj"},
784 {"--comments", "-C", 0},
785 {"--compile", "-c", 0},
786 {"--debug", "-g", "oj"},
787 {"--define-macro", "-D", "aj"},
788 {"--dependencies", "-M", 0},
789 {"--dump", "-d", "a"},
790 {"--dumpbase", "-dumpbase", "a"},
791 {"--entry", "-e", 0},
792 {"--extra-warnings", "-W", 0},
793 {"--for-assembler", "-Wa", "a"},
794 {"--for-linker", "-Xlinker", "a"},
795 {"--force-link", "-u", "a"},
796 {"--imacros", "-imacros", "a"},
797 {"--include", "-include", "a"},
798 {"--include-barrier", "-I-", 0},
799 {"--include-directory", "-I", "aj"},
800 {"--include-directory-after", "-idirafter", "a"},
801 {"--include-prefix", "-iprefix", "a"},
802 {"--include-with-prefix", "-iwithprefix", "a"},
803 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
804 {"--include-with-prefix-after", "-iwithprefix", "a"},
805 {"--language", "-x", "a"},
806 {"--library-directory", "-L", "a"},
807 {"--machine", "-m", "aj"},
808 {"--machine-", "-m", "*j"},
809 {"--no-line-commands", "-P", 0},
810 {"--no-precompiled-includes", "-noprecomp", 0},
811 {"--no-standard-includes", "-nostdinc", 0},
812 {"--no-standard-libraries", "-nostdlib", 0},
813 {"--no-warnings", "-w", 0},
814 {"--optimize", "-O", "oj"},
815 {"--output", "-o", "a"},
816 {"--output-class-directory", "-foutput-class-dir=", "ja"},
817 {"--pedantic", "-pedantic", 0},
818 {"--pedantic-errors", "-pedantic-errors", 0},
819 {"--pipe", "-pipe", 0},
820 {"--prefix", "-B", "a"},
821 {"--preprocess", "-E", 0},
822 {"--print-search-dirs", "-print-search-dirs", 0},
823 {"--print-file-name", "-print-file-name=", "aj"},
824 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
825 {"--print-missing-file-dependencies", "-MG", 0},
826 {"--print-multi-lib", "-print-multi-lib", 0},
827 {"--print-multi-directory", "-print-multi-directory", 0},
828 {"--print-prog-name", "-print-prog-name=", "aj"},
829 {"--profile", "-p", 0},
830 {"--profile-blocks", "-a", 0},
831 {"--quiet", "-q", 0},
832 {"--save-temps", "-save-temps", 0},
833 {"--shared", "-shared", 0},
834 {"--silent", "-q", 0},
835 {"--specs", "-specs=", "aj"},
836 {"--static", "-static", 0},
837 {"--std", "-std=", "aj"},
838 {"--symbolic", "-symbolic", 0},
839 {"--target", "-b", "a"},
840 {"--time", "-time", 0},
841 {"--trace-includes", "-H", 0},
842 {"--traditional", "-traditional", 0},
843 {"--traditional-cpp", "-traditional-cpp", 0},
844 {"--trigraphs", "-trigraphs", 0},
845 {"--undefine-macro", "-U", "aj"},
846 {"--use-version", "-V", "a"},
847 {"--user-dependencies", "-MM", 0},
848 {"--verbose", "-v", 0},
849 {"--version", "-dumpversion", 0},
850 {"--warn-", "-W", "*j"},
851 {"--write-dependencies", "-MD", 0},
852 {"--write-user-dependencies", "-MMD", 0},
856 /* Translate the options described by *ARGCP and *ARGVP.
857 Make a new vector and store it back in *ARGVP,
858 and store its length in *ARGVC. */
861 translate_options (argcp, argvp)
863 const char *const **argvp;
867 const char *const *argv = *argvp;
869 (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
873 newv[newindex++] = argv[i++];
877 /* Translate -- options. */
878 if (argv[i][0] == '-' && argv[i][1] == '-')
881 /* Find a mapping that applies to this option. */
882 for (j = 0; j < ARRAY_SIZE (option_map); j++)
884 size_t optlen = strlen (option_map[j].name);
885 size_t arglen = strlen (argv[i]);
886 size_t complen = arglen > optlen ? optlen : arglen;
887 const char *arginfo = option_map[j].arg_info;
892 if (!strncmp (argv[i], option_map[j].name, complen))
899 for (k = j + 1; k < ARRAY_SIZE (option_map); k++)
900 if (strlen (option_map[k].name) >= arglen
901 && !strncmp (argv[i], option_map[k].name, arglen))
903 error ("Ambiguous abbreviation %s", argv[i]);
907 if (k != ARRAY_SIZE (option_map))
913 /* If the option has an argument, accept that. */
914 if (argv[i][optlen] == '=')
915 arg = argv[i] + optlen + 1;
917 /* If this mapping requires extra text at end of name,
918 accept that as "argument". */
919 else if (index (arginfo, '*') != 0)
920 arg = argv[i] + optlen;
922 /* Otherwise, extra text at end means mismatch.
923 Try other mappings. */
928 else if (index (arginfo, '*') != 0)
930 error ("Incomplete `%s' option", option_map[j].name);
934 /* Handle arguments. */
935 if (index (arginfo, 'a') != 0)
941 error ("Missing argument to `%s' option",
949 else if (index (arginfo, '*') != 0)
951 else if (index (arginfo, 'o') == 0)
954 error ("Extraneous argument to `%s' option",
959 /* Store the translation as one argv elt or as two. */
960 if (arg != 0 && index (arginfo, 'j') != 0)
961 newv[newindex++] = concat (option_map[j].equivalent, arg,
965 newv[newindex++] = option_map[j].equivalent;
966 newv[newindex++] = arg;
969 newv[newindex++] = option_map[j].equivalent;
977 /* Handle old-fashioned options--just copy them through,
978 with their arguments. */
979 else if (argv[i][0] == '-')
981 const char *p = argv[i] + 1;
985 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
986 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
987 else if (WORD_SWITCH_TAKES_ARG (p))
988 nskip += WORD_SWITCH_TAKES_ARG (p);
989 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
992 else if (! strcmp (p, "Xlinker"))
995 /* Watch out for an option at the end of the command line that
996 is missing arguments, and avoid skipping past the end of the
998 if (nskip + i > argc)
1003 newv[newindex++] = argv[i++];
1008 /* Ordinary operands, or +e options. */
1009 newv[newindex++] = argv[i++];
1024 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1025 be considered whitespace. */
1026 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1028 else if (*p == '\n' || *p == ' ' || *p == '\t')
1043 /* Structure to keep track of the specs that have been defined so far.
1044 These are accessed using %(specname) or %[specname] in a compiler
1049 /* The following 2 fields must be first */
1050 /* to allow EXTRA_SPECS to be initialized */
1051 const char *name; /* name of the spec. */
1052 const char *ptr; /* available ptr if no static pointer */
1054 /* The following fields are not initialized */
1055 /* by EXTRA_SPECS */
1056 const char **ptr_spec; /* pointer to the spec itself. */
1057 struct spec_list *next; /* Next spec in linked list. */
1058 int name_len; /* length of the name */
1059 int alloc_p; /* whether string was allocated */
1062 #define INIT_STATIC_SPEC(NAME,PTR) \
1063 { NAME, NULL_PTR, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 }
1065 /* List of statically defined specs. */
1066 static struct spec_list static_specs[] =
1068 INIT_STATIC_SPEC ("asm", &asm_spec),
1069 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1070 INIT_STATIC_SPEC ("asm_options", &asm_options),
1071 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1072 INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1073 INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1074 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1075 INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1076 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1077 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1078 INIT_STATIC_SPEC ("link", &link_spec),
1079 INIT_STATIC_SPEC ("lib", &lib_spec),
1080 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1081 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1082 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1083 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1084 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1085 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1086 INIT_STATIC_SPEC ("version", &compiler_version),
1087 INIT_STATIC_SPEC ("multilib", &multilib_select),
1088 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1089 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1090 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1091 INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1092 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1093 INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1096 #ifdef EXTRA_SPECS /* additional specs needed */
1097 /* Structure to keep track of just the first two args of a spec_list.
1098 That is all that the EXTRA_SPECS macro gives us. */
1105 static struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1106 static struct spec_list *extra_specs = (struct spec_list *) 0;
1109 /* List of dynamically allocates specs that have been defined so far. */
1111 static struct spec_list *specs = (struct spec_list *) 0;
1113 /* Initialize the specs lookup routines. */
1118 struct spec_list *next = (struct spec_list *) 0;
1119 struct spec_list *sl = (struct spec_list *) 0;
1123 return; /* Already initialized. */
1126 notice ("Using builtin specs.\n");
1129 extra_specs = (struct spec_list *)
1130 xcalloc (sizeof (struct spec_list), ARRAY_SIZE (extra_specs_1));
1132 for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1134 sl = &extra_specs[i];
1135 sl->name = extra_specs_1[i].name;
1136 sl->ptr = extra_specs_1[i].ptr;
1138 sl->name_len = strlen (sl->name);
1139 sl->ptr_spec = &sl->ptr;
1144 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1146 sl = &static_specs[i];
1154 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1155 removed; If the spec starts with a + then SPEC is added to the end of the
1159 set_spec (name, spec)
1163 struct spec_list *sl;
1164 const char *old_spec;
1165 int name_len = strlen (name);
1168 /* If this is the first call, initialize the statically allocated specs. */
1171 struct spec_list *next = (struct spec_list *) 0;
1172 for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1174 sl = &static_specs[i];
1181 /* See if the spec already exists. */
1182 for (sl = specs; sl; sl = sl->next)
1183 if (name_len == sl->name_len && !strcmp (sl->name, name))
1188 /* Not found - make it. */
1189 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1190 sl->name = xstrdup (name);
1191 sl->name_len = name_len;
1192 sl->ptr_spec = &sl->ptr;
1194 *(sl->ptr_spec) = "";
1199 old_spec = *(sl->ptr_spec);
1200 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
1201 ? concat (old_spec, spec + 1, NULL_PTR)
1206 notice ("Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1209 /* Free the old spec. */
1210 if (old_spec && sl->alloc_p)
1211 free ((PTR) old_spec);
1216 /* Accumulate a command (program name and args), and run it. */
1218 /* Vector of pointers to arguments in the current line of specifications. */
1220 static const char **argbuf;
1222 /* Number of elements allocated in argbuf. */
1224 static int argbuf_length;
1226 /* Number of elements in argbuf currently in use (containing args). */
1228 static int argbuf_index;
1230 /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
1231 temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
1234 static struct temp_name {
1235 const char *suffix; /* suffix associated with the code. */
1236 int length; /* strlen (suffix). */
1237 int unique; /* Indicates whether %g or %u/%U was used. */
1238 const char *filename; /* associated filename. */
1239 int filename_length; /* strlen (filename). */
1240 struct temp_name *next;
1243 /* Number of commands executed so far. */
1245 static int execution_count;
1247 /* Number of commands that exited with a signal. */
1249 static int signal_count;
1251 /* Name with which this program was invoked. */
1253 static const char *programname;
1255 /* Structures to keep track of prefixes to try when looking for files. */
1259 char *prefix; /* String to prepend to the path. */
1260 struct prefix_list *next; /* Next in linked list. */
1261 int require_machine_suffix; /* Don't use without machine_suffix. */
1262 /* 2 means try both machine_suffix and just_machine_suffix. */
1263 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1264 int priority; /* Sort key - priority within list */
1269 struct prefix_list *plist; /* List of prefixes to try */
1270 int max_len; /* Max length of a prefix in PLIST */
1271 const char *name; /* Name of this list (used in config stuff) */
1274 /* List of prefixes to try when looking for executables. */
1276 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1278 /* List of prefixes to try when looking for startup (crt0) files. */
1280 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1282 /* List of prefixes to try when looking for include files. */
1284 static struct path_prefix include_prefixes = { 0, 0, "include" };
1286 /* Suffix to attach to directories searched for commands.
1287 This looks like `MACHINE/VERSION/'. */
1289 static const char *machine_suffix = 0;
1291 /* Suffix to attach to directories searched for commands.
1292 This is just `MACHINE/'. */
1294 static const char *just_machine_suffix = 0;
1296 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1298 static const char *gcc_exec_prefix;
1300 /* Default prefixes to attach to command names. */
1302 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1303 #undef MD_EXEC_PREFIX
1304 #undef MD_STARTFILE_PREFIX
1305 #undef MD_STARTFILE_PREFIX_1
1308 #ifndef STANDARD_EXEC_PREFIX
1309 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1310 #endif /* !defined STANDARD_EXEC_PREFIX */
1312 static const char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1313 static const char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1314 #ifdef MD_EXEC_PREFIX
1315 static const char *md_exec_prefix = MD_EXEC_PREFIX;
1318 #ifndef STANDARD_STARTFILE_PREFIX
1319 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1320 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1322 #ifdef MD_STARTFILE_PREFIX
1323 static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1325 #ifdef MD_STARTFILE_PREFIX_1
1326 static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1328 static const char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1329 static const char *standard_startfile_prefix_1 = "/lib/";
1330 static const char *standard_startfile_prefix_2 = "/usr/lib/";
1332 #ifndef TOOLDIR_BASE_PREFIX
1333 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1335 static const char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1336 static const char *tooldir_prefix;
1338 #ifndef STANDARD_BINDIR_PREFIX
1339 #define STANDARD_BINDIR_PREFIX "/usr/local/bin"
1341 static const char *standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1343 /* Subdirectory to use for locating libraries. Set by
1344 set_multilib_dir based on the compilation options. */
1346 static const char *multilib_dir;
1348 /* Clear out the vector of arguments (after a command is executed). */
1356 /* Add one argument to the vector at the end.
1357 This is done when a space is seen or at the end of the line.
1358 If DELETE_ALWAYS is nonzero, the arg is a filename
1359 and the file should be deleted eventually.
1360 If DELETE_FAILURE is nonzero, the arg is a filename
1361 and the file should be deleted if this compilation fails. */
1364 store_arg (arg, delete_always, delete_failure)
1366 int delete_always, delete_failure;
1368 if (argbuf_index + 1 == argbuf_length)
1370 = (const char **) xrealloc (argbuf,
1371 (argbuf_length *= 2) * sizeof (const char *));
1373 argbuf[argbuf_index++] = arg;
1374 argbuf[argbuf_index] = 0;
1376 if (delete_always || delete_failure)
1377 record_temp_file (arg, delete_always, delete_failure);
1380 /* Load specs from a file name named FILENAME, replacing occurances of
1381 various different types of line-endings, \r\n, \n\r and just \r, with
1385 load_specs (filename)
1386 const char *filename;
1390 struct stat statbuf;
1397 notice ("Reading specs from %s\n", filename);
1399 /* Open and stat the file. */
1400 desc = open (filename, O_RDONLY, 0);
1402 pfatal_with_name (filename);
1403 if (stat (filename, &statbuf) < 0)
1404 pfatal_with_name (filename);
1406 /* Read contents of file into BUFFER. */
1407 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1408 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1410 pfatal_with_name (filename);
1411 buffer[readlen] = 0;
1414 specs = xmalloc (readlen + 1);
1416 for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
1422 if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
1424 else if (*(buffer_p + 1) == '\n') /* \r\n */
1438 /* Read compilation specs from a file named FILENAME,
1439 replacing the default ones.
1441 A suffix which starts with `*' is a definition for
1442 one of the machine-specific sub-specs. The "suffix" should be
1443 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1444 The corresponding spec is stored in asm_spec, etc.,
1445 rather than in the `compilers' vector.
1447 Anything invalid in the file is a fatal error. */
1450 read_specs (filename, main_p)
1451 const char *filename;
1457 buffer = load_specs (filename);
1459 /* Scan BUFFER for specs, putting them in the vector. */
1465 char *in, *out, *p1, *p2, *p3;
1467 /* Advance P in BUFFER to the next nonblank nocomment line. */
1468 p = skip_whitespace (p);
1472 /* Is this a special command that starts with '%'? */
1473 /* Don't allow this for the main specs file, since it would
1474 encourage people to overwrite it. */
1475 if (*p == '%' && !main_p)
1478 while (*p && *p != '\n')
1484 if (!strncmp (p1, "%include", sizeof ("%include") - 1)
1485 && (p1[sizeof "%include" - 1] == ' '
1486 || p1[sizeof "%include" - 1] == '\t'))
1490 p1 += sizeof ("%include");
1491 while (*p1 == ' ' || *p1 == '\t')
1494 if (*p1++ != '<' || p[-2] != '>')
1495 fatal ("specs %%include syntax malformed after %ld characters",
1496 (long) (p1 - buffer + 1));
1499 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1500 read_specs (new_filename ? new_filename : p1, FALSE);
1503 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1504 && (p1[sizeof "%include_noerr" - 1] == ' '
1505 || p1[sizeof "%include_noerr" - 1] == '\t'))
1509 p1 += sizeof "%include_noerr";
1510 while (*p1 == ' ' || *p1 == '\t')
1513 if (*p1++ != '<' || p[-2] != '>')
1514 fatal ("specs %%include syntax malformed after %ld characters",
1515 (long) (p1 - buffer + 1));
1518 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1520 read_specs (new_filename, FALSE);
1521 else if (verbose_flag)
1522 notice ("Could not find specs file %s\n", p1);
1525 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1526 && (p1[sizeof "%rename" - 1] == ' '
1527 || p1[sizeof "%rename" - 1] == '\t'))
1530 struct spec_list *sl;
1532 /* Get original name */
1533 p1 += sizeof "%rename";
1534 while (*p1 == ' ' || *p1 == '\t')
1537 if (! ISALPHA ((unsigned char) *p1))
1538 fatal ("specs %%rename syntax malformed after %ld characters",
1539 (long) (p1 - buffer));
1542 while (*p2 && !ISSPACE ((unsigned char) *p2))
1545 if (*p2 != ' ' && *p2 != '\t')
1546 fatal ("specs %%rename syntax malformed after %ld characters",
1547 (long) (p2 - buffer));
1551 while (*p2 == ' ' || *p2 == '\t')
1554 if (! ISALPHA ((unsigned char) *p2))
1555 fatal ("specs %%rename syntax malformed after %ld characters",
1556 (long) (p2 - buffer));
1558 /* Get new spec name. */
1560 while (*p3 && !ISSPACE ((unsigned char) *p3))
1564 fatal ("specs %%rename syntax malformed after %ld characters",
1565 (long) (p3 - buffer));
1568 for (sl = specs; sl; sl = sl->next)
1569 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1573 fatal ("specs %s spec was not found to be renamed", p1);
1575 if (strcmp (p1, p2) == 0)
1580 notice ("rename spec %s to %s\n", p1, p2);
1582 notice ("spec is '%s'\n\n", *(sl->ptr_spec));
1586 set_spec (p2, *(sl->ptr_spec));
1588 free ((PTR) *(sl->ptr_spec));
1590 *(sl->ptr_spec) = "";
1595 fatal ("specs unknown %% command after %ld characters",
1596 (long) (p1 - buffer));
1599 /* Find the colon that should end the suffix. */
1601 while (*p1 && *p1 != ':' && *p1 != '\n')
1604 /* The colon shouldn't be missing. */
1606 fatal ("specs file malformed after %ld characters",
1607 (long) (p1 - buffer));
1609 /* Skip back over trailing whitespace. */
1611 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1614 /* Copy the suffix to a string. */
1615 suffix = save_string (p, p2 - p);
1616 /* Find the next line. */
1617 p = skip_whitespace (p1 + 1);
1619 fatal ("specs file malformed after %ld characters",
1620 (long) (p - buffer));
1623 /* Find next blank line or end of string. */
1624 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1627 /* Specs end at the blank line and do not include the newline. */
1628 spec = save_string (p, p1 - p);
1631 /* Delete backslash-newline sequences from the spec. */
1636 if (in[0] == '\\' && in[1] == '\n')
1638 else if (in[0] == '#')
1639 while (*in && *in != '\n')
1647 if (suffix[0] == '*')
1649 if (! strcmp (suffix, "*link_command"))
1650 link_command_spec = spec;
1652 set_spec (suffix + 1, spec);
1656 /* Add this pair to the vector. */
1658 = ((struct compiler *)
1659 xrealloc (compilers,
1660 (n_compilers + 2) * sizeof (struct compiler)));
1662 compilers[n_compilers].suffix = suffix;
1663 compilers[n_compilers].spec = spec;
1665 memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
1669 link_command_spec = spec;
1672 if (link_command_spec == 0)
1673 fatal ("spec file has no spec for linking");
1676 /* Record the names of temporary files we tell compilers to write,
1677 and delete them at the end of the run. */
1679 /* This is the common prefix we use to make temp file names.
1680 It is chosen once for each run of this program.
1681 It is substituted into a spec by %g or %j.
1682 Thus, all temp file names contain this prefix.
1683 In practice, all temp file names start with this prefix.
1685 This prefix comes from the envvar TMPDIR if it is defined;
1686 otherwise, from the P_tmpdir macro if that is defined;
1687 otherwise, in /usr/tmp or /tmp;
1688 or finally the current directory if all else fails. */
1690 static const char *temp_filename;
1692 /* Length of the prefix. */
1694 static int temp_filename_length;
1696 /* Define the list of temporary files to delete. */
1701 struct temp_file *next;
1704 /* Queue of files to delete on success or failure of compilation. */
1705 static struct temp_file *always_delete_queue;
1706 /* Queue of files to delete on failure of compilation. */
1707 static struct temp_file *failure_delete_queue;
1709 /* Record FILENAME as a file to be deleted automatically.
1710 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1711 otherwise delete it in any case.
1712 FAIL_DELETE nonzero means delete it if a compilation step fails;
1713 otherwise delete it in any case. */
1716 record_temp_file (filename, always_delete, fail_delete)
1717 const char *filename;
1721 register char *const name = xstrdup (filename);
1725 register struct temp_file *temp;
1726 for (temp = always_delete_queue; temp; temp = temp->next)
1727 if (! strcmp (name, temp->name))
1730 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1731 temp->next = always_delete_queue;
1733 always_delete_queue = temp;
1740 register struct temp_file *temp;
1741 for (temp = failure_delete_queue; temp; temp = temp->next)
1742 if (! strcmp (name, temp->name))
1745 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1746 temp->next = failure_delete_queue;
1748 failure_delete_queue = temp;
1754 /* Delete all the temporary files whose names we previously recorded. */
1757 delete_if_ordinary (name)
1764 printf ("Delete %s? (y or n) ", name);
1768 while ((c = getchar ()) != '\n' && c != EOF)
1771 if (i == 'y' || i == 'Y')
1773 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1774 if (unlink (name) < 0)
1776 perror_with_name (name);
1780 delete_temp_files ()
1782 register struct temp_file *temp;
1784 for (temp = always_delete_queue; temp; temp = temp->next)
1785 delete_if_ordinary (temp->name);
1786 always_delete_queue = 0;
1789 /* Delete all the files to be deleted on error. */
1792 delete_failure_queue ()
1794 register struct temp_file *temp;
1796 for (temp = failure_delete_queue; temp; temp = temp->next)
1797 delete_if_ordinary (temp->name);
1801 clear_failure_queue ()
1803 failure_delete_queue = 0;
1806 /* Routine to add variables to the environment. We do this to pass
1807 the pathname of the gcc driver, and the directories search to the
1808 collect2 program, which is being run as ld. This way, we can be
1809 sure of executing the right compiler when collect2 wants to build
1810 constructors and destructors. Since the environment variables we
1811 use come from an obstack, we don't have to worry about allocating
1820 #ifndef VMS /* nor about VMS */
1822 extern char **environ;
1823 char **old_environ = environ;
1827 int str_len = strlen (str);
1831 while ((ch = *p++) != '\0' && ch != '=')
1837 /* Search for replacing an existing environment variable, and
1838 count the number of total environment variables. */
1839 for (envp = old_environ; *envp; envp++)
1842 if (!strncmp (str, *envp, name_len))
1849 /* Add a new environment variable */
1850 environ = (char **) xmalloc (sizeof (char *) * (num_envs + 2));
1852 memcpy ((char *) (environ + 1), (char *) old_environ,
1853 sizeof (char *) * (num_envs + 1));
1858 #endif /* HAVE_PUTENV */
1860 /* Build a list of search directories from PATHS.
1861 PREFIX is a string to prepend to the list.
1862 If CHECK_DIR_P is non-zero we ensure the directory exists.
1863 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1864 It is also used by the --print-search-dirs flag. */
1867 build_search_list (paths, prefix, check_dir_p)
1868 struct path_prefix *paths;
1872 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1874 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1875 int first_time = TRUE;
1876 struct prefix_list *pprefix;
1878 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1879 obstack_1grow (&collect_obstack, '=');
1881 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1883 int len = strlen (pprefix->prefix);
1887 || is_directory (pprefix->prefix, machine_suffix, 0)))
1890 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1893 obstack_grow (&collect_obstack, pprefix->prefix, len);
1894 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1897 if (just_machine_suffix
1898 && pprefix->require_machine_suffix == 2
1900 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1903 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1906 obstack_grow (&collect_obstack, pprefix->prefix, len);
1907 obstack_grow (&collect_obstack, just_machine_suffix,
1911 if (! pprefix->require_machine_suffix)
1914 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1917 obstack_grow (&collect_obstack, pprefix->prefix, len);
1921 obstack_1grow (&collect_obstack, '\0');
1922 return obstack_finish (&collect_obstack);
1925 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1929 putenv_from_prefixes (paths, env_var)
1930 struct path_prefix *paths;
1931 const char *env_var;
1933 putenv (build_search_list (paths, env_var, 1));
1938 /* FIXME: the location independence code for VMS is hairier than this,
1939 and hasn't been written. */
1941 /* Split a filename into component directories. */
1944 split_directories (name, ptr_num_dirs)
1953 /* Count the number of directories. Special case MSDOS disk names as part
1954 of the initial directory. */
1956 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1957 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1962 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1964 while ((ch = *p++) != '\0')
1966 if (IS_DIR_SEPARATOR (ch))
1969 while (IS_DIR_SEPARATOR (*p))
1974 dirs = (char **) xmalloc (sizeof (char *) * (num_dirs + 2));
1976 /* Now copy the directory parts. */
1979 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1980 if (name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
1982 dirs[num_dirs++] = save_string (p, 3);
1985 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
1988 while ((ch = *p++) != '\0')
1990 if (IS_DIR_SEPARATOR (ch))
1992 while (IS_DIR_SEPARATOR (*p))
1995 dirs[num_dirs++] = save_string (q, p - q);
2001 dirs[num_dirs++] = save_string (q, p - 1 - q);
2003 dirs[num_dirs] = NULL_PTR;
2005 *ptr_num_dirs = num_dirs;
2010 /* Release storage held by split directories. */
2013 free_split_directories (dirs)
2018 while (dirs[i] != NULL_PTR)
2021 free ((char *) dirs);
2024 /* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
2025 to PREFIX starting with the directory portion of PROGNAME and a relative
2026 pathname of the difference between BIN_PREFIX and PREFIX.
2028 For example, if BIN_PREFIX is /alpha/beta/gamma/gcc/delta, PREFIX is
2029 /alpha/beta/gamma/omega/, and PROGNAME is /red/green/blue/gcc, then this
2030 function will return /red/green/blue/../omega.
2032 If no relative prefix can be found, return NULL. */
2035 make_relative_prefix (progname, bin_prefix, prefix)
2036 const char *progname;
2037 const char *bin_prefix;
2040 char **prog_dirs, **bin_dirs, **prefix_dirs;
2041 int prog_num, bin_num, prefix_num, std_loc_p;
2044 prog_dirs = split_directories (progname, &prog_num);
2045 bin_dirs = split_directories (bin_prefix, &bin_num);
2047 /* If there is no full pathname, try to find the program by checking in each
2048 of the directories specified in the PATH environment variable. */
2053 GET_ENV_PATH_LIST (temp, "PATH");
2056 char *startp, *endp;
2057 char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
2059 startp = endp = temp;
2062 if (*endp == PATH_SEPARATOR || *endp == 0)
2067 nstore[1] = DIR_SEPARATOR;
2072 strncpy (nstore, startp, endp - startp);
2073 if (! IS_DIR_SEPARATOR (endp[-1]))
2075 nstore[endp - startp] = DIR_SEPARATOR;
2076 nstore[endp - startp + 1] = 0;
2079 nstore[endp - startp] = 0;
2081 strcat (nstore, progname);
2082 if (! access (nstore, X_OK)
2083 #ifdef HAVE_EXECUTABLE_SUFFIX
2084 || ! access (strcat (nstore, EXECUTABLE_SUFFIX), X_OK)
2088 free_split_directories (prog_dirs);
2090 prog_dirs = split_directories (progname, &prog_num);
2096 endp = startp = endp + 1;
2104 /* Remove the program name from comparison of directory names. */
2107 /* Determine if the compiler is installed in the standard location, and if
2108 so, we don't need to specify relative directories. Also, if argv[0]
2109 doesn't contain any directory specifiers, there is not much we can do. */
2111 if (prog_num == bin_num)
2113 for (i = 0; i < bin_num; i++)
2115 if (strcmp (prog_dirs[i], bin_dirs[i]) != 0)
2119 if (prog_num <= 0 || i == bin_num)
2122 free_split_directories (prog_dirs);
2123 free_split_directories (bin_dirs);
2124 prog_dirs = bin_dirs = (char **) 0;
2129 prefix_dirs = split_directories (prefix, &prefix_num);
2131 /* Find how many directories are in common between bin_prefix & prefix. */
2132 n = (prefix_num < bin_num) ? prefix_num : bin_num;
2133 for (common = 0; common < n; common++)
2135 if (strcmp (bin_dirs[common], prefix_dirs[common]) != 0)
2139 /* If there are no common directories, there can be no relative prefix. */
2142 free_split_directories (prog_dirs);
2143 free_split_directories (bin_dirs);
2144 free_split_directories (prefix_dirs);
2148 /* Build up the pathnames in argv[0]. */
2149 for (i = 0; i < prog_num; i++)
2150 obstack_grow (&obstack, prog_dirs[i], strlen (prog_dirs[i]));
2152 /* Now build up the ..'s. */
2153 for (i = common; i < n; i++)
2155 obstack_grow (&obstack, DIR_UP, sizeof (DIR_UP) - 1);
2156 obstack_1grow (&obstack, DIR_SEPARATOR);
2159 /* Put in directories to move over to prefix. */
2160 for (i = common; i < prefix_num; i++)
2161 obstack_grow (&obstack, prefix_dirs[i], strlen (prefix_dirs[i]));
2163 free_split_directories (prog_dirs);
2164 free_split_directories (bin_dirs);
2165 free_split_directories (prefix_dirs);
2167 obstack_1grow (&obstack, '\0');
2168 return obstack_finish (&obstack);
2172 /* Check whether NAME can be accessed in MODE. This is like access,
2173 except that it never considers directories to be executable. */
2176 access_check (name, mode)
2184 if (stat (name, &st) < 0
2185 || S_ISDIR (st.st_mode))
2189 return access (name, mode);
2192 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
2193 access to check permissions.
2194 Return 0 if not found, otherwise return its name, allocated with malloc. */
2197 find_a_file (pprefix, name, mode)
2198 struct path_prefix *pprefix;
2203 const char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
2204 struct prefix_list *pl;
2205 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
2207 #ifdef DEFAULT_ASSEMBLER
2208 if (! strcmp(name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0)
2209 return xstrdup (DEFAULT_ASSEMBLER);
2212 #ifdef DEFAULT_LINKER
2213 if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0)
2214 return xstrdup (DEFAULT_LINKER);
2218 len += strlen (machine_suffix);
2220 temp = xmalloc (len);
2222 /* Determine the filename to execute (special case for absolute paths). */
2224 if (IS_DIR_SEPARATOR (*name)
2225 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2226 /* Check for disk name on MS-DOS-based systems. */
2227 || (name[0] && name[1] == ':' && IS_DIR_SEPARATOR (name[2]))
2231 if (access (name, mode) == 0)
2233 strcpy (temp, name);
2238 for (pl = pprefix->plist; pl; pl = pl->next)
2242 /* Some systems have a suffix for executable files.
2243 So try appending that first. */
2244 if (file_suffix[0] != 0)
2246 strcpy (temp, pl->prefix);
2247 strcat (temp, machine_suffix);
2248 strcat (temp, name);
2249 strcat (temp, file_suffix);
2250 if (access_check (temp, mode) == 0)
2252 if (pl->used_flag_ptr != 0)
2253 *pl->used_flag_ptr = 1;
2258 /* Now try just the name. */
2259 strcpy (temp, pl->prefix);
2260 strcat (temp, machine_suffix);
2261 strcat (temp, name);
2262 if (access_check (temp, mode) == 0)
2264 if (pl->used_flag_ptr != 0)
2265 *pl->used_flag_ptr = 1;
2270 /* Certain prefixes are tried with just the machine type,
2271 not the version. This is used for finding as, ld, etc. */
2272 if (just_machine_suffix && pl->require_machine_suffix == 2)
2274 /* Some systems have a suffix for executable files.
2275 So try appending that first. */
2276 if (file_suffix[0] != 0)
2278 strcpy (temp, pl->prefix);
2279 strcat (temp, just_machine_suffix);
2280 strcat (temp, name);
2281 strcat (temp, file_suffix);
2282 if (access_check (temp, mode) == 0)
2284 if (pl->used_flag_ptr != 0)
2285 *pl->used_flag_ptr = 1;
2290 strcpy (temp, pl->prefix);
2291 strcat (temp, just_machine_suffix);
2292 strcat (temp, name);
2293 if (access_check (temp, mode) == 0)
2295 if (pl->used_flag_ptr != 0)
2296 *pl->used_flag_ptr = 1;
2301 /* Certain prefixes can't be used without the machine suffix
2302 when the machine or version is explicitly specified. */
2303 if (! pl->require_machine_suffix)
2305 /* Some systems have a suffix for executable files.
2306 So try appending that first. */
2307 if (file_suffix[0] != 0)
2309 strcpy (temp, pl->prefix);
2310 strcat (temp, name);
2311 strcat (temp, file_suffix);
2312 if (access_check (temp, mode) == 0)
2314 if (pl->used_flag_ptr != 0)
2315 *pl->used_flag_ptr = 1;
2320 strcpy (temp, pl->prefix);
2321 strcat (temp, name);
2322 if (access_check (temp, mode) == 0)
2324 if (pl->used_flag_ptr != 0)
2325 *pl->used_flag_ptr = 1;
2335 /* Ranking of prefixes in the sort list. -B prefixes are put before
2338 enum path_prefix_priority
2340 PREFIX_PRIORITY_B_OPT,
2341 PREFIX_PRIORITY_LAST
2344 /* Add an entry for PREFIX in PLIST. The PLIST is kept in assending
2345 order according to PRIORITY. Within each PRIORITY, new entries are
2348 If WARN is nonzero, we will warn if no file is found
2349 through this prefix. WARN should point to an int
2350 which will be set to 1 if this entry is used.
2352 COMPONENT is the value to be passed to update_path.
2354 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2355 the complete value of machine_suffix.
2356 2 means try both machine_suffix and just_machine_suffix. */
2359 add_prefix (pprefix, prefix, component, priority, require_machine_suffix, warn)
2360 struct path_prefix *pprefix;
2362 const char *component;
2363 /* enum prefix_priority */ int priority;
2364 int require_machine_suffix;
2367 struct prefix_list *pl, **prev;
2370 for (prev = &pprefix->plist;
2371 (*prev) != NULL && (*prev)->priority <= priority;
2372 prev = &(*prev)->next)
2375 /* Keep track of the longest prefix */
2377 prefix = update_path (prefix, component);
2378 len = strlen (prefix);
2379 if (len > pprefix->max_len)
2380 pprefix->max_len = len;
2382 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2383 pl->prefix = save_string (prefix, len);
2384 pl->require_machine_suffix = require_machine_suffix;
2385 pl->used_flag_ptr = warn;
2386 pl->priority = priority;
2390 /* Insert after PREV */
2395 /* Execute the command specified by the arguments on the current line of spec.
2396 When using pipes, this includes several piped-together commands
2397 with `|' between them.
2399 Return 0 if successful, -1 if failed. */
2405 int n_commands; /* # of command. */
2409 const char *prog; /* program name. */
2410 const char **argv; /* vector of args. */
2411 int pid; /* pid of process for this command. */
2414 struct command *commands; /* each command buffer with above info. */
2416 /* Count # of piped commands. */
2417 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2418 if (strcmp (argbuf[i], "|") == 0)
2421 /* Get storage for each command. */
2422 commands = (struct command *) alloca (n_commands * sizeof (struct command));
2424 /* Split argbuf into its separate piped processes,
2425 and record info about each one.
2426 Also search for the programs that are to be run. */
2428 commands[0].prog = argbuf[0]; /* first command. */
2429 commands[0].argv = &argbuf[0];
2430 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2433 commands[0].argv[0] = string;
2435 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2436 if (strcmp (argbuf[i], "|") == 0)
2437 { /* each command. */
2438 #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
2439 fatal ("-pipe not supported");
2441 argbuf[i] = 0; /* termination of command args. */
2442 commands[n_commands].prog = argbuf[i + 1];
2443 commands[n_commands].argv = &argbuf[i + 1];
2444 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2446 commands[n_commands].argv[0] = string;
2450 argbuf[argbuf_index] = 0;
2452 /* If -v, print what we are about to do, and maybe query. */
2456 /* For help listings, put a blank line between sub-processes. */
2457 if (print_help_list)
2458 fputc ('\n', stderr);
2460 /* Print each piped command as a separate line. */
2461 for (i = 0; i < n_commands; i++)
2463 const char *const *j;
2465 for (j = commands[i].argv; *j; j++)
2466 fprintf (stderr, " %s", *j);
2468 /* Print a pipe symbol after all but the last command. */
2469 if (i + 1 != n_commands)
2470 fprintf (stderr, " |");
2471 fprintf (stderr, "\n");
2475 notice ("\nGo ahead? (y or n) ");
2479 while (getchar () != '\n')
2482 if (i != 'y' && i != 'Y')
2487 /* Run each piped subprocess. */
2489 for (i = 0; i < n_commands; i++)
2491 char *errmsg_fmt, *errmsg_arg;
2492 const char *string = commands[i].argv[0];
2494 /* For some bizarre reason, the second argument of execvp() is
2495 char *const *, not const char *const *. */
2496 commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
2497 programname, temp_filename,
2498 &errmsg_fmt, &errmsg_arg,
2499 ((i == 0 ? PEXECUTE_FIRST : 0)
2500 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2501 | (string == commands[i].prog
2502 ? PEXECUTE_SEARCH : 0)
2503 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2505 if (commands[i].pid == -1)
2506 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2508 if (string != commands[i].prog)
2509 free ((PTR) string);
2514 /* Wait for all the subprocesses to finish.
2515 We don't care what order they finish in;
2516 we know that N_COMMANDS waits will get them all.
2517 Ignore subprocesses that we don't know about,
2518 since they can be spawned by the process that exec'ed us. */
2522 #ifdef HAVE_GETRUSAGE
2524 double ut = 0.0, st = 0.0;
2527 for (i = 0; i < n_commands;)
2533 pid = pwait (commands[i].pid, &status, 0);
2537 #ifdef HAVE_GETRUSAGE
2540 /* getrusage returns the total resource usage of all children
2541 up to now. Copy the previous values into prus, get the
2542 current statistics, then take the difference. */
2545 getrusage (RUSAGE_CHILDREN, &rus);
2546 d.tv_sec = rus.ru_utime.tv_sec - prus.ru_utime.tv_sec;
2547 d.tv_usec = rus.ru_utime.tv_usec - prus.ru_utime.tv_usec;
2548 ut = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2550 d.tv_sec = rus.ru_stime.tv_sec - prus.ru_stime.tv_sec;
2551 d.tv_usec = rus.ru_stime.tv_usec - prus.ru_stime.tv_usec;
2552 st = (double) d.tv_sec + (double) d.tv_usec / 1.0e6;
2556 for (j = 0; j < n_commands; j++)
2557 if (commands[j].pid == pid)
2560 if (WIFSIGNALED (status))
2563 /* SIGPIPE is a special case. It happens in -pipe mode
2564 when the compiler dies before the preprocessor is
2565 done, or the assembler dies before the compiler is
2566 done. There's generally been an error already, and
2567 this is just fallout. So don't generate another error
2568 unless we would otherwise have succeeded. */
2569 if (WTERMSIG (status) == SIGPIPE
2570 && (signal_count || greatest_status >= MIN_FATAL_STATUS))
2575 Internal error: %s (program %s)\n\
2576 Please submit a full bug report.\n\
2577 See %s for instructions.",
2578 strsignal (WTERMSIG (status)), commands[j].prog,
2583 else if (WIFEXITED (status)
2584 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2586 if (WEXITSTATUS (status) > greatest_status)
2587 greatest_status = WEXITSTATUS (status);
2590 #ifdef HAVE_GETRUSAGE
2591 if (report_times && ut + st != 0)
2592 notice ("# %s %.2f %.2f\n", commands[j].prog, ut, st);
2601 /* Find all the switches given to us
2602 and make a vector describing them.
2603 The elements of the vector are strings, one per switch given.
2604 If a switch uses following arguments, then the `part1' field
2605 is the switch itself and the `args' field
2606 is a null-terminated vector containing the following arguments.
2607 The `live_cond' field is:
2609 1 if the switch is true in a conditional spec,
2610 -1 if false (overridden by a later switch)
2611 -2 if this switch should be ignored (used in %{<S})
2612 The `validated' field is nonzero if any spec has looked at this switch;
2613 if it remains zero at the end of the run, it must be meaningless. */
2616 #define SWITCH_FALSE -1
2617 #define SWITCH_IGNORE -2
2618 #define SWITCH_LIVE 1
2628 static struct switchstr *switches;
2630 static int n_switches;
2635 const char *language;
2638 /* Also a vector of input files specified. */
2640 static struct infile *infiles;
2642 static int n_infiles;
2644 /* This counts the number of libraries added by lang_specific_driver, so that
2645 we can tell if there were any user supplied any files or libraries. */
2647 static int added_libraries;
2649 /* And a vector of corresponding output files is made up later. */
2651 static const char **outfiles;
2653 /* Used to track if none of the -B paths are used. */
2656 /* Used to track if standard path isn't used and -b or -V is specified. */
2657 static int warn_std;
2659 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2660 static int *warn_std_ptr = 0;
2662 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2664 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2665 is true if we should look for an executable suffix as well. */
2668 convert_filename (name, do_exe)
2678 len = strlen (name);
2680 #ifdef HAVE_OBJECT_SUFFIX
2681 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2683 && name[len - 2] == '.'
2684 && name[len - 1] == 'o')
2686 obstack_grow (&obstack, name, len - 2);
2687 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2688 name = obstack_finish (&obstack);
2692 #ifdef HAVE_EXECUTABLE_SUFFIX
2693 /* If there is no filetype, make it the executable suffix (which includes
2694 the "."). But don't get confused if we have just "-o". */
2695 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2698 for (i = len - 1; i >= 0; i--)
2699 if (IS_DIR_SEPARATOR (name[i]))
2702 for (i++; i < len; i++)
2706 obstack_grow (&obstack, name, len);
2707 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2708 name = obstack_finish (&obstack);
2715 /* Display the command line switches accepted by gcc. */
2719 printf (_("Usage: %s [options] file...\n"), programname);
2720 fputs (_("Options:\n"), stdout);
2722 fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
2723 fputs (_(" --help Display this information\n"), stdout);
2725 fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
2726 fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout);
2727 fputs (_(" -dumpversion Display the version of the compiler\n"), stdout);
2728 fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout);
2729 fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout);
2730 fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout);
2731 fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout);
2732 fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout);
2733 fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout);
2735 -print-multi-lib Display the mapping between command line options and\n\
2736 multiple library search directories\n"), stdout);
2737 fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout);
2738 fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout);
2739 fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout);
2740 fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout);
2741 fputs (_(" -save-temps Do not delete intermediate files\n"), stdout);
2742 fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout);
2743 fputs (_(" -time Time the execution of each subprocess\n"), stdout);
2744 fputs (_(" -specs=<file> Override builtin specs with the contents of <file>\n"), stdout);
2745 fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
2746 fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
2747 fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
2748 fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
2749 fputs (_(" -v Display the programs invoked by the compiler\n"), stdout);
2750 fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout);
2751 fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
2752 fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
2753 fputs (_(" -o <file> Place the output into <file>\n"), stdout);
2755 -x <language> Specify the language of the following input files\n\
2756 Permissable languages include: c c++ assembler none\n\
2757 'none' means revert to the default behaviour of\n\
2758 guessing the language based on the file's extension\n\
2762 \nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n\
2763 the various sub-processes invoked by %s. In order to pass other options\n\
2764 on to these processes the -W<letter> options must be used.\n\
2767 /* The rest of the options are displayed by invocations of the various
2772 add_preprocessor_option (option, len)
2776 n_preprocessor_options++;
2778 if (! preprocessor_options)
2779 preprocessor_options
2780 = (char **) xmalloc (n_preprocessor_options * sizeof (char *));
2782 preprocessor_options
2783 = (char **) xrealloc (preprocessor_options,
2784 n_preprocessor_options * sizeof (char *));
2786 preprocessor_options [n_preprocessor_options - 1] =
2787 save_string (option, len);
2791 add_assembler_option (option, len)
2795 n_assembler_options++;
2797 if (! assembler_options)
2799 = (char **) xmalloc (n_assembler_options * sizeof (char *));
2802 = (char **) xrealloc (assembler_options,
2803 n_assembler_options * sizeof (char *));
2805 assembler_options [n_assembler_options - 1] = save_string (option, len);
2809 add_linker_option (option, len)
2815 if (! linker_options)
2817 = (char **) xmalloc (n_linker_options * sizeof (char *));
2820 = (char **) xrealloc (linker_options,
2821 n_linker_options * sizeof (char *));
2823 linker_options [n_linker_options - 1] = save_string (option, len);
2826 /* Create the vector `switches' and its contents.
2827 Store its length in `n_switches'. */
2830 process_command (argc, argv)
2832 const char *const *argv;
2837 const char *spec_lang = 0;
2838 int last_language_n_infiles;
2841 int lang_n_infiles = 0;
2843 GET_ENV_PATH_LIST (gcc_exec_prefix, "GCC_EXEC_PREFIX");
2847 added_libraries = 0;
2849 /* Figure compiler version from version string. */
2851 compiler_version = temp1 = xstrdup (version_string);
2853 for (; *temp1; ++temp1)
2862 /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
2863 see if we can create it from the pathname specified in argv[0]. */
2866 /* FIXME: make_relative_prefix doesn't yet work for VMS. */
2867 if (!gcc_exec_prefix)
2869 gcc_exec_prefix = make_relative_prefix (argv[0], standard_bindir_prefix,
2870 standard_exec_prefix);
2871 if (gcc_exec_prefix)
2872 putenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL_PTR));
2876 if (gcc_exec_prefix)
2878 int len = strlen (gcc_exec_prefix);
2879 if (len > (int) sizeof ("/lib/gcc-lib/") - 1
2880 && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
2882 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2883 if (IS_DIR_SEPARATOR (*temp)
2884 && strncmp (temp + 1, "lib", 3) == 0
2885 && IS_DIR_SEPARATOR (temp[4])
2886 && strncmp (temp + 5, "gcc-lib", 7) == 0)
2887 len -= sizeof ("/lib/gcc-lib/") - 1;
2890 set_std_prefix (gcc_exec_prefix, len);
2891 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC",
2892 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2893 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
2894 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2897 /* COMPILER_PATH and LIBRARY_PATH have values
2898 that are lists of directory names with colons. */
2900 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2903 const char *startp, *endp;
2904 char *nstore = (char *) alloca (strlen (temp) + 3);
2906 startp = endp = temp;
2909 if (*endp == PATH_SEPARATOR || *endp == 0)
2911 strncpy (nstore, startp, endp - startp);
2913 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2914 else if (!IS_DIR_SEPARATOR (endp[-1]))
2916 nstore[endp - startp] = DIR_SEPARATOR;
2917 nstore[endp - startp + 1] = 0;
2920 nstore[endp - startp] = 0;
2921 add_prefix (&exec_prefixes, nstore, 0,
2922 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2923 add_prefix (&include_prefixes,
2924 concat (nstore, "include", NULL_PTR),
2925 0, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2928 endp = startp = endp + 1;
2935 GET_ENV_PATH_LIST (temp, LIBRARY_PATH_ENV);
2936 if (temp && *cross_compile == '0')
2938 const char *startp, *endp;
2939 char *nstore = (char *) alloca (strlen (temp) + 3);
2941 startp = endp = temp;
2944 if (*endp == PATH_SEPARATOR || *endp == 0)
2946 strncpy (nstore, startp, endp - startp);
2948 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2949 else if (!IS_DIR_SEPARATOR (endp[-1]))
2951 nstore[endp - startp] = DIR_SEPARATOR;
2952 nstore[endp - startp + 1] = 0;
2955 nstore[endp - startp] = 0;
2956 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2957 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2960 endp = startp = endp + 1;
2967 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2968 GET_ENV_PATH_LIST (temp, "LPATH");
2969 if (temp && *cross_compile == '0')
2971 const char *startp, *endp;
2972 char *nstore = (char *) alloca (strlen (temp) + 3);
2974 startp = endp = temp;
2977 if (*endp == PATH_SEPARATOR || *endp == 0)
2979 strncpy (nstore, startp, endp - startp);
2981 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2982 else if (!IS_DIR_SEPARATOR (endp[-1]))
2984 nstore[endp - startp] = DIR_SEPARATOR;
2985 nstore[endp - startp + 1] = 0;
2988 nstore[endp - startp] = 0;
2989 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2990 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
2993 endp = startp = endp + 1;
3000 /* Convert new-style -- options to old-style. */
3001 translate_options (&argc, &argv);
3003 /* Do language-specific adjustment/addition of flags. */
3004 lang_specific_driver (&argc, &argv, &added_libraries);
3006 /* Scan argv twice. Here, the first time, just count how many switches
3007 there will be in their vector, and how many input files in theirs.
3008 Here we also parse the switches that cc itself uses (e.g. -v). */
3010 for (i = 1; i < argc; i++)
3012 if (! strcmp (argv[i], "-dumpspecs"))
3014 struct spec_list *sl;
3016 for (sl = specs; sl; sl = sl->next)
3017 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
3018 if (link_command_spec)
3019 printf ("*link_command:\n%s\n\n", link_command_spec);
3022 else if (! strcmp (argv[i], "-dumpversion"))
3024 printf ("%s\n", spec_version);
3027 else if (! strcmp (argv[i], "-dumpmachine"))
3029 printf ("%s\n", spec_machine);
3032 else if (strcmp (argv[i], "-fhelp") == 0)
3034 /* translate_options () has turned --help into -fhelp. */
3035 print_help_list = 1;
3037 /* We will be passing a dummy file on to the sub-processes. */
3041 add_preprocessor_option ("--help", 6);
3042 add_assembler_option ("--help", 6);
3043 add_linker_option ("--help", 6);
3045 else if (! strcmp (argv[i], "-pass-exit-codes"))
3047 pass_exit_codes = 1;
3050 else if (! strcmp (argv[i], "-print-search-dirs"))
3051 print_search_dirs = 1;
3052 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3053 print_file_name = "libgcc.a";
3054 else if (! strncmp (argv[i], "-print-file-name=", 17))
3055 print_file_name = argv[i] + 17;
3056 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3057 print_prog_name = argv[i] + 17;
3058 else if (! strcmp (argv[i], "-print-multi-lib"))
3059 print_multi_lib = 1;
3060 else if (! strcmp (argv[i], "-print-multi-directory"))
3061 print_multi_directory = 1;
3062 else if (! strncmp (argv[i], "-Wa,", 4))
3065 /* Pass the rest of this option to the assembler. */
3067 /* Split the argument at commas. */
3069 for (j = 4; argv[i][j]; j++)
3070 if (argv[i][j] == ',')
3072 add_assembler_option (argv[i] + prev, j - prev);
3076 /* Record the part after the last comma. */
3077 add_assembler_option (argv[i] + prev, j - prev);
3079 else if (! strncmp (argv[i], "-Wp,", 4))
3082 /* Pass the rest of this option to the preprocessor. */
3084 /* Split the argument at commas. */
3086 for (j = 4; argv[i][j]; j++)
3087 if (argv[i][j] == ',')
3089 add_preprocessor_option (argv[i] + prev, j - prev);
3093 /* Record the part after the last comma. */
3094 add_preprocessor_option (argv[i] + prev, j - prev);
3096 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3097 /* The +e options to the C++ front-end. */
3099 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3102 /* Split the argument at commas. */
3103 for (j = 3; argv[i][j]; j++)
3104 n_infiles += (argv[i][j] == ',');
3106 else if (strcmp (argv[i], "-Xlinker") == 0)
3109 fatal ("argument to `-Xlinker' is missing");
3114 else if (strncmp (argv[i], "-l", 2) == 0)
3116 else if (strcmp (argv[i], "-save-temps") == 0)
3118 save_temps_flag = 1;
3121 else if (strcmp (argv[i], "-specs") == 0)
3123 struct user_specs *user = (struct user_specs *)
3124 xmalloc (sizeof (struct user_specs));
3126 fatal ("argument to `-specs' is missing");
3128 user->next = (struct user_specs *) 0;
3129 user->filename = argv[i];
3130 if (user_specs_tail)
3131 user_specs_tail->next = user;
3133 user_specs_head = user;
3134 user_specs_tail = user;
3136 else if (strncmp (argv[i], "-specs=", 7) == 0)
3138 struct user_specs *user = (struct user_specs *)
3139 xmalloc (sizeof (struct user_specs));
3140 if (strlen (argv[i]) == 7)
3141 fatal ("argument to `-specs=' is missing");
3143 user->next = (struct user_specs *) 0;
3144 user->filename = argv[i] + 7;
3145 if (user_specs_tail)
3146 user_specs_tail->next = user;
3148 user_specs_head = user;
3149 user_specs_tail = user;
3151 else if (strcmp (argv[i], "-time") == 0)
3153 else if (argv[i][0] == '-' && argv[i][1] != 0)
3155 register const char *p = &argv[i][1];
3156 register int c = *p;
3162 if (p[1] == 0 && i + 1 == argc)
3163 fatal ("argument to `-b' is missing");
3165 spec_machine = argv[++i];
3167 spec_machine = p + 1;
3169 warn_std_ptr = &warn_std;
3175 if (p[1] == 0 && i + 1 == argc)
3176 fatal ("argument to `-B' is missing");
3182 /* As a kludge, if the arg is "[foo/]stageN/", just
3183 add "[foo/]include" to the include prefix. */
3184 int len = strlen (value);
3187 && (IS_DIR_SEPARATOR (value[len - 8]))))
3188 && strncmp (value + len - 7, "stage", 5) == 0
3189 && ISDIGIT (value[len - 2])
3190 && (IS_DIR_SEPARATOR (value[len - 1])))
3193 add_prefix (&include_prefixes, "include", NULL_PTR,
3194 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3197 char *string = xmalloc (len + 1);
3198 strncpy (string, value, len-7);
3199 strcpy (string+len-7, "include");
3200 add_prefix (&include_prefixes, string, NULL_PTR,
3201 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3205 add_prefix (&exec_prefixes, value, NULL_PTR,
3206 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3207 add_prefix (&startfile_prefixes, value, NULL_PTR,
3208 PREFIX_PRIORITY_B_OPT, 0, &warn_B);
3209 add_prefix (&include_prefixes, concat (value, "include",
3212 PREFIX_PRIORITY_B_OPT, 0, NULL_PTR);
3217 case 'v': /* Print our subcommands and print versions. */
3219 /* If they do anything other than exactly `-v', don't set
3220 verbose_flag; rather, continue on to give the error. */
3228 if (p[1] == 0 && i + 1 == argc)
3229 fatal ("argument to `-V' is missing");
3231 spec_version = argv[++i];
3233 spec_version = p + 1;
3234 compiler_version = spec_version;
3235 warn_std_ptr = &warn_std;
3237 /* Validate the version number. Use the same checks
3238 done when inserting it into a spec.
3240 The format of the version string is
3241 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
3243 const char *v = compiler_version;
3245 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
3246 while (! ISDIGIT (*v))
3249 if (v > compiler_version && v[-1] != '-')
3250 fatal ("invalid version number format");
3252 /* Set V after the first period. */
3253 while (ISDIGIT (*v))
3257 fatal ("invalid version number format");
3260 while (ISDIGIT (*v))
3263 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
3264 fatal ("invalid version number format");
3280 #if defined(HAVE_EXECUTABLE_SUFFIX)
3285 /* Forward scan, just in case -S or -c is specified
3292 if (argv[j][0] == '-')
3294 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3300 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3301 j += skip - (argv[j][2] != 0);
3302 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3309 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3311 argv[i + 1] = convert_filename (argv[i + 1], ! have_c);
3313 argv[i] = convert_filename (argv[i], ! have_c);
3321 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3322 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3323 else if (WORD_SWITCH_TAKES_ARG (p))
3324 i += WORD_SWITCH_TAKES_ARG (p);
3334 if (have_c && have_o && lang_n_infiles > 1)
3335 fatal ("cannot specify -o with -c or -S and multiple compilations");
3337 /* Set up the search paths before we go looking for config files. */
3339 /* These come before the md prefixes so that we will find gcc's subcommands
3340 (such as cpp) rather than those of the host system. */
3341 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3342 as well as trying the machine and the version. */
3344 add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
3345 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3346 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3347 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3348 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3349 PREFIX_PRIORITY_LAST, 2, warn_std_ptr);
3352 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3353 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3354 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3355 PREFIX_PRIORITY_LAST, 1, warn_std_ptr);
3357 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3358 dir_separator_str, NULL_PTR);
3360 /* If tooldir is relative, base it on exec_prefixes. A relative
3361 tooldir lets us move the installed tree as a unit.
3363 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3364 directories, so that we can search both the user specified directory
3365 and the standard place. */
3367 if (!IS_DIR_SEPARATOR (*tooldir_prefix))
3369 if (gcc_exec_prefix)
3371 char *gcc_exec_tooldir_prefix
3372 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3373 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3375 add_prefix (&exec_prefixes,
3376 concat (gcc_exec_tooldir_prefix, "bin",
3377 dir_separator_str, NULL_PTR),
3378 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3379 add_prefix (&startfile_prefixes,
3380 concat (gcc_exec_tooldir_prefix, "lib",
3381 dir_separator_str, NULL_PTR),
3382 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3385 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3386 dir_separator_str, spec_version,
3387 dir_separator_str, tooldir_prefix, NULL_PTR);
3390 add_prefix (&exec_prefixes,
3391 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3392 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3393 add_prefix (&startfile_prefixes,
3394 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3395 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
3397 /* More prefixes are enabled in main, after we read the specs file
3398 and determine whether this is cross-compilation or not. */
3400 /* Then create the space for the vectors and scan again. */
3402 switches = ((struct switchstr *)
3403 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3404 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3407 last_language_n_infiles = -1;
3409 /* This, time, copy the text of each switch and store a pointer
3410 to the copy in the vector of switches.
3411 Store all the infiles in their vector. */
3413 for (i = 1; i < argc; i++)
3415 /* Just skip the switches that were handled by the preceding loop. */
3416 if (! strncmp (argv[i], "-Wa,", 4))
3418 else if (! strncmp (argv[i], "-Wp,", 4))
3420 else if (! strcmp (argv[i], "-pass-exit-codes"))
3422 else if (! strcmp (argv[i], "-print-search-dirs"))
3424 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3426 else if (! strncmp (argv[i], "-print-file-name=", 17))
3428 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3430 else if (! strcmp (argv[i], "-print-multi-lib"))
3432 else if (! strcmp (argv[i], "-print-multi-directory"))
3434 else if (strcmp (argv[i], "-fhelp") == 0)
3438 /* Create a dummy input file, so that we can pass --help on to
3439 the various sub-processes. */
3440 infiles[n_infiles].language = "c";
3441 infiles[n_infiles++].name = "help-dummy";
3443 /* Preserve the --help switch so that it can be caught by the
3445 switches[n_switches].part1 = "--help";
3446 switches[n_switches].args = 0;
3447 switches[n_switches].live_cond = SWITCH_OK;
3448 switches[n_switches].validated = 0;
3453 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3455 /* Compensate for the +e options to the C++ front-end;
3456 they're there simply for cfront call-compatibility. We do
3457 some magic in default_compilers to pass them down properly.
3458 Note we deliberately start at the `+' here, to avoid passing
3459 -e0 or -e1 down into the linker. */
3460 switches[n_switches].part1 = &argv[i][0];
3461 switches[n_switches].args = 0;
3462 switches[n_switches].live_cond = SWITCH_OK;
3463 switches[n_switches].validated = 0;
3466 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3469 /* Split the argument at commas. */
3471 for (j = 4; argv[i][j]; j++)
3472 if (argv[i][j] == ',')
3474 infiles[n_infiles].language = "*";
3475 infiles[n_infiles++].name
3476 = save_string (argv[i] + prev, j - prev);
3479 /* Record the part after the last comma. */
3480 infiles[n_infiles].language = "*";
3481 infiles[n_infiles++].name = argv[i] + prev;
3483 else if (strcmp (argv[i], "-Xlinker") == 0)
3485 infiles[n_infiles].language = "*";
3486 infiles[n_infiles++].name = argv[++i];
3488 else if (strncmp (argv[i], "-l", 2) == 0)
3490 infiles[n_infiles].language = "*";
3491 infiles[n_infiles++].name = argv[i];
3493 else if (strcmp (argv[i], "-specs") == 0)
3495 else if (strncmp (argv[i], "-specs=", 7) == 0)
3497 else if (strcmp (argv[i], "-time") == 0)
3499 else if ((save_temps_flag || report_times)
3500 && strcmp (argv[i], "-pipe") == 0)
3502 /* -save-temps overrides -pipe, so that temp files are produced */
3503 if (save_temps_flag)
3504 error ("Warning: -pipe ignored since -save-temps specified");
3505 /* -time overrides -pipe because we can't get correct stats when
3506 multiple children are running at once. */
3507 else if (report_times)
3508 error ("Warning: -pipe ignored since -time specified");
3510 else if (argv[i][0] == '-' && argv[i][1] != 0)
3512 const char *p = &argv[i][1];
3517 if (p[1] == 0 && i + 1 == argc)
3518 fatal ("argument to `-x' is missing");
3520 spec_lang = argv[++i];
3523 if (! strcmp (spec_lang, "none"))
3524 /* Suppress the warning if -xnone comes after the last input
3525 file, because alternate command interfaces like g++ might
3526 find it useful to place -xnone after each input file. */
3529 last_language_n_infiles = n_infiles;
3532 switches[n_switches].part1 = p;
3533 /* Deal with option arguments in separate argv elements. */
3534 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3535 || WORD_SWITCH_TAKES_ARG (p))
3538 int n_args = WORD_SWITCH_TAKES_ARG (p);
3542 /* Count only the option arguments in separate argv elements. */
3543 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3545 if (i + n_args >= argc)
3546 fatal ("argument to `-%s' is missing", p);
3547 switches[n_switches].args
3548 = (const char **) xmalloc ((n_args + 1) * sizeof(const char *));
3550 switches[n_switches].args[j++] = argv[++i];
3551 /* Null-terminate the vector. */
3552 switches[n_switches].args[j] = 0;
3554 else if (index (switches_need_spaces, c))
3556 /* On some systems, ld cannot handle some options without
3557 a space. So split the option from its argument. */
3558 char *part1 = (char *) xmalloc (2);
3563 switches[n_switches].part1 = part1;
3564 switches[n_switches].args
3565 = (const char **) xmalloc (2 * sizeof (const char *));
3566 switches[n_switches].args[0] = tmp = xmalloc (strlen (p));
3567 strcpy (tmp, &p[1]);
3568 switches[n_switches].args[1] = 0;
3571 switches[n_switches].args = 0;
3573 switches[n_switches].live_cond = SWITCH_OK;
3574 switches[n_switches].validated = 0;
3575 /* This is always valid, since gcc.c itself understands it. */
3576 if (!strcmp (p, "save-temps"))
3577 switches[n_switches].validated = 1;
3580 char ch = switches[n_switches].part1[0];
3581 if (ch == 'V' || ch == 'b' || ch == 'B')
3582 switches[n_switches].validated = 1;
3588 #ifdef HAVE_OBJECT_SUFFIX
3589 argv[i] = convert_filename (argv[i], 0);
3592 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3594 perror_with_name (argv[i]);
3599 infiles[n_infiles].language = spec_lang;
3600 infiles[n_infiles++].name = argv[i];
3605 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3606 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3608 switches[n_switches].part1 = 0;
3609 infiles[n_infiles].name = 0;
3612 /* Process a spec string, accumulating and running commands. */
3614 /* These variables describe the input file name.
3615 input_file_number is the index on outfiles of this file,
3616 so that the output file name can be stored for later use by %o.
3617 input_basename is the start of the part of the input file
3618 sans all directory names, and basename_length is the number
3619 of characters starting there excluding the suffix .c or whatever. */
3621 const char *input_filename;
3622 static int input_file_number;
3623 size_t input_filename_length;
3624 static int basename_length;
3625 static int suffixed_basename_length;
3626 static const char *input_basename;
3627 static const char *input_suffix;
3629 /* These are variables used within do_spec and do_spec_1. */
3631 /* Nonzero if an arg has been started and not yet terminated
3632 (with space, tab or newline). */
3633 static int arg_going;
3635 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3636 is a temporary file name. */
3637 static int delete_this_arg;
3639 /* Nonzero means %w has been seen; the next arg to be terminated
3640 is the output file name of this compilation. */
3641 static int this_is_output_file;
3643 /* Nonzero means %s has been seen; the next arg to be terminated
3644 is the name of a library file and we should try the standard
3645 search dirs for it. */
3646 static int this_is_library_file;
3648 /* Nonzero means that the input of this command is coming from a pipe. */
3649 static int input_from_pipe;
3651 /* Process the spec SPEC and run the commands specified therein.
3652 Returns 0 if the spec is successfully processed; -1 if failed. */
3662 delete_this_arg = 0;
3663 this_is_output_file = 0;
3664 this_is_library_file = 0;
3665 input_from_pipe = 0;
3667 value = do_spec_1 (spec, 0, NULL_PTR);
3669 /* Force out any unfinished command.
3670 If -pipe, this forces out the last command if it ended in `|'. */
3673 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3676 if (argbuf_index > 0)
3683 /* Process the sub-spec SPEC as a portion of a larger spec.
3684 This is like processing a whole spec except that we do
3685 not initialize at the beginning and we do not supply a
3686 newline by default at the end.
3687 INSWITCH nonzero means don't process %-sequences in SPEC;
3688 in this case, % is treated as an ordinary character.
3689 This is used while substituting switches.
3690 INSWITCH nonzero also causes SPC not to terminate an argument.
3692 Value is zero unless a line was finished
3693 and the command on that line reported an error. */
3696 do_spec_1 (spec, inswitch, soft_matched_part)
3699 const char *soft_matched_part;
3701 register const char *p = spec;
3708 /* If substituting a switch, treat all chars like letters.
3709 Otherwise, NL, SPC, TAB and % are special. */
3710 switch (inswitch ? 'a' : c)
3713 /* End of line: finish any pending argument,
3714 then run the pending command if one has been started. */
3717 obstack_1grow (&obstack, 0);
3718 string = obstack_finish (&obstack);
3719 if (this_is_library_file)
3720 string = find_file (string);
3721 store_arg (string, delete_this_arg, this_is_output_file);
3722 if (this_is_output_file)
3723 outfiles[input_file_number] = string;
3727 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3729 for (i = 0; i < n_switches; i++)
3730 if (!strcmp (switches[i].part1, "pipe"))
3733 /* A `|' before the newline means use a pipe here,
3734 but only if -pipe was specified.
3735 Otherwise, execute now and don't pass the `|' as an arg. */
3738 input_from_pipe = 1;
3739 switches[i].validated = 1;
3746 if (argbuf_index > 0)
3752 /* Reinitialize for a new command, and for a new argument. */
3755 delete_this_arg = 0;
3756 this_is_output_file = 0;
3757 this_is_library_file = 0;
3758 input_from_pipe = 0;
3762 /* End any pending argument. */
3765 obstack_1grow (&obstack, 0);
3766 string = obstack_finish (&obstack);
3767 if (this_is_library_file)
3768 string = find_file (string);
3769 store_arg (string, delete_this_arg, this_is_output_file);
3770 if (this_is_output_file)
3771 outfiles[input_file_number] = string;
3775 obstack_1grow (&obstack, c);
3781 /* Space or tab ends an argument if one is pending. */
3784 obstack_1grow (&obstack, 0);
3785 string = obstack_finish (&obstack);
3786 if (this_is_library_file)
3787 string = find_file (string);
3788 store_arg (string, delete_this_arg, this_is_output_file);
3789 if (this_is_output_file)
3790 outfiles[input_file_number] = string;
3792 /* Reinitialize for a new argument. */
3794 delete_this_arg = 0;
3795 this_is_output_file = 0;
3796 this_is_library_file = 0;
3803 fatal ("Invalid specification! Bug in cc.");
3806 obstack_grow (&obstack, input_basename, basename_length);
3811 obstack_grow (&obstack, input_basename, suffixed_basename_length);
3816 delete_this_arg = 2;
3819 /* Dump out the directories specified with LIBRARY_PATH,
3820 followed by the absolute directories
3821 that we search for startfiles. */
3824 struct prefix_list *pl = startfile_prefixes.plist;
3825 size_t bufsize = 100;
3826 char *buffer = (char *) xmalloc (bufsize);
3829 for (; pl; pl = pl->next)
3831 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3832 /* Used on systems which record the specified -L dirs
3833 and use them to search for dynamic linking. */
3834 /* Relative directories always come from -B,
3835 and it is better not to use them for searching
3836 at run time. In particular, stage1 loses. */
3837 if (!IS_DIR_SEPARATOR (pl->prefix[0]))
3840 /* Try subdirectory if there is one. */
3841 if (multilib_dir != NULL)
3845 if (strlen (pl->prefix) + strlen (machine_suffix)
3847 bufsize = (strlen (pl->prefix)
3848 + strlen (machine_suffix)) * 2 + 1;
3849 buffer = (char *) xrealloc (buffer, bufsize);
3850 strcpy (buffer, pl->prefix);
3851 strcat (buffer, machine_suffix);
3852 if (is_directory (buffer, multilib_dir, 1))
3854 do_spec_1 ("-L", 0, NULL_PTR);
3855 #ifdef SPACE_AFTER_L_OPTION
3856 do_spec_1 (" ", 0, NULL_PTR);
3858 do_spec_1 (buffer, 1, NULL_PTR);
3859 do_spec_1 (multilib_dir, 1, NULL_PTR);
3860 /* Make this a separate argument. */
3861 do_spec_1 (" ", 0, NULL_PTR);
3864 if (!pl->require_machine_suffix)
3866 if (is_directory (pl->prefix, multilib_dir, 1))
3868 do_spec_1 ("-L", 0, NULL_PTR);
3869 #ifdef SPACE_AFTER_L_OPTION
3870 do_spec_1 (" ", 0, NULL_PTR);
3872 do_spec_1 (pl->prefix, 1, NULL_PTR);
3873 do_spec_1 (multilib_dir, 1, NULL_PTR);
3874 /* Make this a separate argument. */
3875 do_spec_1 (" ", 0, NULL_PTR);
3881 if (is_directory (pl->prefix, machine_suffix, 1))
3883 do_spec_1 ("-L", 0, NULL_PTR);
3884 #ifdef SPACE_AFTER_L_OPTION
3885 do_spec_1 (" ", 0, NULL_PTR);
3887 do_spec_1 (pl->prefix, 1, NULL_PTR);
3888 /* Remove slash from machine_suffix. */
3889 if (strlen (machine_suffix) >= bufsize)
3890 bufsize = strlen (machine_suffix) * 2 + 1;
3891 buffer = (char *) xrealloc (buffer, bufsize);
3892 strcpy (buffer, machine_suffix);
3893 idx = strlen (buffer);
3894 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3895 buffer[idx - 1] = 0;
3896 do_spec_1 (buffer, 1, NULL_PTR);
3897 /* Make this a separate argument. */
3898 do_spec_1 (" ", 0, NULL_PTR);
3901 if (!pl->require_machine_suffix)
3903 if (is_directory (pl->prefix, "", 1))
3905 do_spec_1 ("-L", 0, NULL_PTR);
3906 #ifdef SPACE_AFTER_L_OPTION
3907 do_spec_1 (" ", 0, NULL_PTR);
3909 /* Remove slash from pl->prefix. */
3910 if (strlen (pl->prefix) >= bufsize)
3911 bufsize = strlen (pl->prefix) * 2 + 1;
3912 buffer = (char *) xrealloc (buffer, bufsize);
3913 strcpy (buffer, pl->prefix);
3914 idx = strlen (buffer);
3915 if (IS_DIR_SEPARATOR (buffer[idx - 1]))
3916 buffer[idx - 1] = 0;
3917 do_spec_1 (buffer, 1, NULL_PTR);
3918 /* Make this a separate argument. */
3919 do_spec_1 (" ", 0, NULL_PTR);
3928 /* %efoo means report an error with `foo' as error message
3929 and don't execute any more commands for this file. */
3933 while (*p != 0 && *p != '\n')
3935 buf = (char *) alloca (p - q + 1);
3936 strncpy (buf, q, p - q);
3947 /* If save_temps_flag is off, and the HOST_BIT_BUCKET is defined,
3948 and it is not a directory, and it is writable, use it.
3949 Otherwise, fall through and treat this like any other
3952 if ((!save_temps_flag)
3953 && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
3954 && (access (HOST_BIT_BUCKET, W_OK) == 0))
3956 obstack_grow (&obstack, HOST_BIT_BUCKET,
3957 strlen (HOST_BIT_BUCKET));
3958 delete_this_arg = 0;
3966 if (save_temps_flag)
3968 obstack_grow (&obstack, input_basename, basename_length);
3969 delete_this_arg = 0;
3973 struct temp_name *t;
3975 const char *suffix = p;
3976 char *saved_suffix = NULL;
3978 while (*p == '.' || ISALPHA ((unsigned char) *p))
3980 suffix_length = p - suffix;
3981 if (p[0] == '%' && p[1] == 'O')
3984 /* We don't support extra suffix characters after %O. */
3985 if (*p == '.' || ISALPHA ((unsigned char) *p))
3987 if (suffix_length == 0)
3988 suffix = OBJECT_SUFFIX;
3992 = (char *) xmalloc (suffix_length
3993 + strlen (OBJECT_SUFFIX));
3994 strncpy (saved_suffix, suffix, suffix_length);
3995 strcpy (saved_suffix + suffix_length,
3998 suffix_length += strlen (OBJECT_SUFFIX);
4001 /* See if we already have an association of %g/%u/%U and
4003 for (t = temp_names; t; t = t->next)
4004 if (t->length == suffix_length
4005 && strncmp (t->suffix, suffix, suffix_length) == 0
4006 && t->unique == (c != 'g'))
4009 /* Make a new association if needed. %u and %j require one. */
4010 if (t == 0 || c == 'u' || c == 'j')
4014 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
4015 t->next = temp_names;
4018 t->length = suffix_length;
4019 t->suffix = save_string (suffix, suffix_length);
4020 t->unique = (c != 'g');
4021 temp_filename = make_temp_file (t->suffix);
4022 temp_filename_length = strlen (temp_filename);
4023 t->filename = temp_filename;
4024 t->filename_length = temp_filename_length;
4028 free (saved_suffix);
4030 obstack_grow (&obstack, t->filename, t->filename_length);
4031 delete_this_arg = 1;
4037 obstack_grow (&obstack, input_filename, input_filename_length);
4043 struct prefix_list *pl = include_prefixes.plist;
4045 if (gcc_exec_prefix)
4047 do_spec_1 ("-iprefix", 1, NULL_PTR);
4048 /* Make this a separate argument. */
4049 do_spec_1 (" ", 0, NULL_PTR);
4050 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
4051 do_spec_1 (" ", 0, NULL_PTR);
4054 for (; pl; pl = pl->next)
4056 do_spec_1 ("-isystem", 1, NULL_PTR);
4057 /* Make this a separate argument. */
4058 do_spec_1 (" ", 0, NULL_PTR);
4059 do_spec_1 (pl->prefix, 1, NULL_PTR);
4060 do_spec_1 (" ", 0, NULL_PTR);
4067 int max = n_infiles;
4068 max += lang_specific_extra_outfiles;
4070 for (i = 0; i < max; i++)
4072 store_arg (outfiles[i], 0, 0);
4077 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
4082 this_is_library_file = 1;
4086 this_is_output_file = 1;
4091 int cur_index = argbuf_index;
4092 /* Handle the {...} following the %W. */
4095 p = handle_braces (p + 1);
4098 /* If any args were output, mark the last one for deletion
4100 if (argbuf_index != cur_index)
4101 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
4105 /* %x{OPTION} records OPTION for %X to output. */
4111 /* Skip past the option value and make a copy. */
4116 string = save_string (p1 + 1, p - p1 - 2);
4118 /* See if we already recorded this option. */
4119 for (i = 0; i < n_linker_options; i++)
4120 if (! strcmp (string, linker_options[i]))
4126 /* This option is new; add it. */
4127 add_linker_option (string, strlen (string));
4131 /* Dump out the options accumulated previously using %x. */
4133 for (i = 0; i < n_linker_options; i++)
4135 do_spec_1 (linker_options[i], 1, NULL_PTR);
4136 /* Make each accumulated option a separate argument. */
4137 do_spec_1 (" ", 0, NULL_PTR);
4141 /* Dump out the options accumulated previously using -Wa,. */
4143 for (i = 0; i < n_assembler_options; i++)
4145 do_spec_1 (assembler_options[i], 1, NULL_PTR);
4146 /* Make each accumulated option a separate argument. */
4147 do_spec_1 (" ", 0, NULL_PTR);
4151 /* Dump out the options accumulated previously using -Wp,. */
4153 for (i = 0; i < n_preprocessor_options; i++)
4155 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
4156 /* Make each accumulated option a separate argument. */
4157 do_spec_1 (" ", 0, NULL_PTR);
4161 /* Here are digits and numbers that just process
4162 a certain constant string as a spec. */
4165 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
4171 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
4177 value = do_spec_1 (asm_spec, 0, NULL_PTR);
4183 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
4189 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
4195 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
4201 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
4207 value = do_spec_1 (link_spec, 0, NULL_PTR);
4213 value = do_spec_1 (lib_spec, 0, NULL_PTR);
4219 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
4226 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
4230 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
4234 if (! strncmp (y, "-D", 2))
4235 /* Copy the whole option. */
4236 while (*y && *y != ' ' && *y != '\t')
4238 else if (*y == ' ' || *y == '\t')
4239 /* Copy whitespace to the result. */
4241 /* Don't copy other options. */
4248 value = do_spec_1 (buf, 0, NULL_PTR);
4256 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
4260 /* Copy all of CPP_PREDEFINES into BUF,
4261 but force them all into the reserved name space if they
4262 aren't already there. The reserved name space is all
4263 identifiers beginning with two underscores or with one
4264 underscore and a capital letter. We do the forcing by
4265 adding up to two underscores to the beginning and end
4266 of each symbol. e.g. mips, _mips, mips_, and _mips_ all
4271 if (! strncmp (y, "-D", 2))
4280 && ! ISUPPER ((unsigned char) *(y + 1))))
4282 /* Stick __ at front of macro name. */
4286 /* Arrange to stick __ at the end as well. */
4290 /* Copy the macro name. */
4291 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4304 /* Copy the value given, if any. */
4305 while (*y && *y != ' ' && *y != '\t')
4308 else if (*y == ' ' || *y == '\t')
4309 /* Copy whitespace to the result. */
4311 /* Don't copy -A options */
4317 /* Copy all of CPP_PREDEFINES into BUF,
4318 but put __ after every -D. */
4322 if (! strncmp (y, "-D", 2))
4328 && ! ISUPPER ((unsigned char) *(y + 1))))
4330 /* Stick -D__ at front of macro name. */
4337 /* Copy the macro name. */
4338 while (*y && *y != '=' && *y != ' ' && *y != '\t')
4341 /* Copy the value given, if any. */
4342 while (*y && *y != ' ' && *y != '\t')
4347 /* Do not copy this macro - we have just done it before */
4348 while (*y && *y != ' ' && *y != '\t')
4352 else if (*y == ' ' || *y == '\t')
4353 /* Copy whitespace to the result. */
4355 /* Don't copy -A options. */
4361 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4365 if (! strncmp (y, "-A", 2))
4366 /* Copy the whole option. */
4367 while (*y && *y != ' ' && *y != '\t')
4369 else if (*y == ' ' || *y == '\t')
4370 /* Copy whitespace to the result. */
4372 /* Don't copy other options. */
4379 value = do_spec_1 (buf, 0, NULL_PTR);
4386 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4391 /* Here we define characters other than letters and digits. */
4394 p = handle_braces (p);
4400 obstack_1grow (&obstack, '%');
4404 if (soft_matched_part)
4406 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4407 do_spec_1 (" ", 0, NULL_PTR);
4410 /* Catch the case where a spec string contains something like
4411 '%{foo:%*}'. ie there is no * in the pattern on the left
4412 hand side of the :. */
4413 error ("Spec failure: '%%*' has not been initialised by pattern match");
4416 /* Process a string found as the value of a spec given by name.
4417 This feature allows individual machine descriptions
4418 to add and use their own specs.
4419 %[...] modifies -D options the way %P does;
4420 %(...) uses the spec unmodified. */
4422 error ("Warning: use of obsolete %%[ operator in specs");
4425 const char *name = p;
4426 struct spec_list *sl;
4429 /* The string after the S/P is the name of a spec that is to be
4431 while (*p && *p != ')' && *p != ']')
4434 /* See if it's in the list. */
4435 for (len = p - name, sl = specs; sl; sl = sl->next)
4436 if (sl->name_len == len && !strncmp (sl->name, name, len))
4438 name = *(sl->ptr_spec);
4440 notice ("Processing spec %c%s%c, which is '%s'\n",
4441 c, sl->name, (c == '(') ? ')' : ']', name);
4450 value = do_spec_1 (name, 0, NULL_PTR);
4456 char *x = (char *) alloca (strlen (name) * 2 + 1);
4458 const char *y = name;
4461 /* Copy all of NAME into BUF, but put __ after
4462 every -D and at the end of each arg. */
4465 if (! strncmp (y, "-D", 2))
4476 && (*y == ' ' || *y == '\t' || *y == '='
4477 || *y == '}' || *y == 0))
4490 value = do_spec_1 (buf, 0, NULL_PTR);
4496 /* Discard the closing paren or bracket. */
4504 int c1 = *p++; /* Select first or second version number. */
4505 const char *v = compiler_version;
4507 static const char zeroc = '0';
4509 /* The format of the version string is
4510 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4512 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4513 while (! ISDIGIT (*v))
4515 if (v > compiler_version && v[-1] != '-')
4518 /* If desired, advance to second version number. */
4521 /* Set V after the first period. */
4522 while (ISDIGIT (*v))
4529 /* If desired, advance to third version number.
4530 But don't complain if it's not present */
4533 /* Set V after the second period. */
4534 while (ISDIGIT (*v))
4536 if ((*v != 0) && (*v != ' ') && (*v != '.') && (*v != '-'))
4542 /* Set Q at the next period or at the end. */
4544 while (ISDIGIT (*q))
4546 if (*q != 0 && q > v && *q != ' ' && *q != '.' && *q != '-')
4550 /* Put that part into the command. */
4551 obstack_grow (&obstack, v, q - v);
4553 /* Default to "0" */
4554 obstack_grow (&obstack, &zeroc, 1);
4560 if (input_from_pipe)
4561 do_spec_1 ("-", 0, NULL_PTR);
4565 error ("Spec failure: Unrecognised spec option '%c'", c);
4571 /* Backslash: treat next character as ordinary. */
4576 /* Ordinary character: put it into the current argument. */
4577 obstack_1grow (&obstack, c);
4581 /* End of string. */
4585 /* Return 0 if we call do_spec_1 and that returns -1. */
4589 register const char *p;
4591 const char *filter, *body = NULL, *endbody = NULL;
4595 int include_blanks = 1;
4596 int elide_switch = 0;
4600 /* A '^' after the open-brace means to not give blanks before args. */
4607 /* A `|' after the open-brace means,
4608 if the test fails, output a single minus sign rather than nothing.
4609 This is used in %{|!pipe:...}. */
4616 /* A `<' after the open-brace means that the switch should be
4617 removed from the command-line. */
4623 negate = suffix = 0;
4626 /* A `!' after the open-brace negates the condition:
4627 succeed if the specified switch is not present. */
4631 /* A `.' after the open-brace means test against the current suffix. */
4640 if (elide_switch && (negate || pipe_p || suffix))
4642 /* It doesn't make sense to mix elision with other flags. We
4643 could fatal() here, but the standard seems to be to abort. */
4648 while (*p != ':' && *p != '}' && *p != '|')
4651 if (*p == '|' && pipe_p)
4658 register int count = 1;
4659 register const char *q = p;
4678 body = p, endbody = p + 1;
4683 int found = (input_suffix != 0
4684 && (long) strlen (input_suffix) == (long) (p - filter)
4685 && strncmp (input_suffix, filter, p - filter) == 0);
4691 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4694 else if (p[-1] == '*' && p[0] == '}')
4696 /* Substitute all matching switches as separate args. */
4699 for (i = 0; i < n_switches; i++)
4700 if (!strncmp (switches[i].part1, filter, p - filter)
4701 && check_live_switch (i, p - filter))
4702 give_switch (i, 0, include_blanks);
4706 /* Test for presence of the specified switch. */
4710 /* If name specified ends in *, as in {x*:...},
4711 check for %* and handle that case. */
4712 if (p[-1] == '*' && !negate)
4715 const char *r = body;
4717 /* First see whether we have %*. */
4721 if (*r == '%' && r[1] == '*')
4725 /* If we do, handle that case. */
4728 /* Substitute all matching switches as separate args.
4729 But do this by substituting for %*
4730 in the text that follows the colon. */
4732 unsigned hard_match_len = p - filter - 1;
4733 char *string = save_string (body, endbody - body - 1);
4735 for (i = 0; i < n_switches; i++)
4736 if (!strncmp (switches[i].part1, filter, hard_match_len)
4737 && check_live_switch (i, -1))
4739 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4740 /* Pass any arguments this switch has. */
4741 give_switch (i, 1, 1);
4744 /* We didn't match. Try again. */
4751 /* If name specified ends in *, as in {x*:...},
4752 check for presence of any switch name starting with x. */
4755 for (i = 0; i < n_switches; i++)
4757 unsigned hard_match_len = p - filter - 1;
4759 if (!strncmp (switches[i].part1, filter, hard_match_len)
4760 && check_live_switch (i, hard_match_len))
4767 /* Otherwise, check for presence of exact name specified. */
4770 for (i = 0; i < n_switches; i++)
4772 if (!strncmp (switches[i].part1, filter, p - filter)
4773 && switches[i].part1[p - filter] == 0
4774 && check_live_switch (i, -1))
4782 /* If it is as desired (present for %{s...}, absent for %{!s...})
4783 then substitute either the switch or the specified
4784 conditional text. */
4785 if (present != negate)
4789 switches[i].live_cond = SWITCH_IGNORE;
4790 switches[i].validated = 1;
4794 give_switch (i, 0, include_blanks);
4798 if (do_spec_1 (save_string (body, endbody - body - 1),
4805 /* Here if a %{|...} conditional fails: output a minus sign,
4806 which means "standard output" or "standard input". */
4807 do_spec_1 ("-", 0, NULL_PTR);
4812 /* We didn't match; try again. */
4819 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4820 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4821 spec, or -1 if either exact match or %* is used.
4823 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4824 whose value does not begin with "no-" is obsoleted by the same value
4825 with the "no-", similarly for a switch with the "no-" prefix. */
4828 check_live_switch (switchnum, prefix_length)
4832 const char *name = switches[switchnum].part1;
4835 /* In the common case of {<at-most-one-letter>*}, a negating
4836 switch would always match, so ignore that case. We will just
4837 send the conflicting switches to the compiler phase. */
4838 if (prefix_length >= 0 && prefix_length <= 1)
4841 /* If we already processed this switch and determined if it was
4842 live or not, return our past determination. */
4843 if (switches[switchnum].live_cond != 0)
4844 return switches[switchnum].live_cond > 0;
4846 /* Now search for duplicate in a manner that depends on the name. */
4850 for (i = switchnum + 1; i < n_switches; i++)
4851 if (switches[i].part1[0] == 'O')
4853 switches[switchnum].validated = 1;
4854 switches[switchnum].live_cond = SWITCH_FALSE;
4859 case 'W': case 'f': case 'm':
4860 if (! strncmp (name + 1, "no-", 3))
4862 /* We have Xno-YYY, search for XYYY. */
4863 for (i = switchnum + 1; i < n_switches; i++)
4864 if (switches[i].part1[0] == name[0]
4865 && ! strcmp (&switches[i].part1[1], &name[4]))
4867 switches[switchnum].validated = 1;
4868 switches[switchnum].live_cond = SWITCH_FALSE;
4874 /* We have XYYY, search for Xno-YYY. */
4875 for (i = switchnum + 1; i < n_switches; i++)
4876 if (switches[i].part1[0] == name[0]
4877 && switches[i].part1[1] == 'n'
4878 && switches[i].part1[2] == 'o'
4879 && switches[i].part1[3] == '-'
4880 && !strcmp (&switches[i].part1[4], &name[1]))
4882 switches[switchnum].validated = 1;
4883 switches[switchnum].live_cond = SWITCH_FALSE;
4890 /* Otherwise the switch is live. */
4891 switches[switchnum].live_cond = SWITCH_LIVE;
4895 /* Pass a switch to the current accumulating command
4896 in the same form that we received it.
4897 SWITCHNUM identifies the switch; it is an index into
4898 the vector of switches gcc received, which is `switches'.
4899 This cannot fail since it never finishes a command line.
4901 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4903 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4907 give_switch (switchnum, omit_first_word, include_blanks)
4909 int omit_first_word;
4912 if (switches[switchnum].live_cond == SWITCH_IGNORE)
4915 if (!omit_first_word)
4917 do_spec_1 ("-", 0, NULL_PTR);
4918 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4921 if (switches[switchnum].args != 0)
4924 for (p = switches[switchnum].args; *p; p++)
4927 do_spec_1 (" ", 0, NULL_PTR);
4928 do_spec_1 (*p, 1, NULL_PTR);
4932 do_spec_1 (" ", 0, NULL_PTR);
4933 switches[switchnum].validated = 1;
4936 /* Search for a file named NAME trying various prefixes including the
4937 user's -B prefix and some standard ones.
4938 Return the absolute file name found. If nothing is found, return NAME. */
4946 /* Try multilib_dir if it is defined. */
4947 if (multilib_dir != NULL)
4951 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4952 strcpy (try, multilib_dir);
4953 strcat (try, dir_separator_str);
4956 newname = find_a_file (&startfile_prefixes, try, R_OK);
4958 /* If we don't find it in the multi library dir, then fall
4959 through and look for it in the normal places. */
4960 if (newname != NULL)
4964 newname = find_a_file (&startfile_prefixes, name, R_OK);
4965 return newname ? newname : name;
4968 /* Determine whether a directory exists. If LINKER, return 0 for
4969 certain fixed names not needed by the linker. If not LINKER, it is
4970 only important to return 0 if the host machine has a small ARG_MAX
4974 is_directory (path1, path2, linker)
4979 int len1 = strlen (path1);
4980 int len2 = strlen (path2);
4981 char *path = (char *) alloca (3 + len1 + len2);
4985 #ifndef SMALL_ARG_MAX
4990 /* Construct the path from the two parts. Ensure the string ends with "/.".
4991 The resulting path will be a directory even if the given path is a
4993 memcpy (path, path1, len1);
4994 memcpy (path + len1, path2, len2);
4995 cp = path + len1 + len2;
4996 if (!IS_DIR_SEPARATOR (cp[-1]))
4997 *cp++ = DIR_SEPARATOR;
5001 /* Exclude directories that the linker is known to search. */
5004 && strcmp (path, concat (dir_separator_str, "lib",
5005 dir_separator_str, ".", NULL_PTR)) == 0)
5007 && strcmp (path, concat (dir_separator_str, "usr",
5008 dir_separator_str, "lib",
5009 dir_separator_str, ".", NULL_PTR)) == 0)))
5012 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
5015 /* Set up the various global variables to indicate that we're processing
5016 the input file named FILENAME. */
5019 set_input (filename)
5020 const char *filename;
5022 register const char *p;
5024 input_filename = filename;
5025 input_filename_length = strlen (input_filename);
5027 input_basename = input_filename;
5028 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5029 /* Skip drive name so 'x:foo' is handled properly. */
5030 if (input_basename[1] == ':')
5031 input_basename += 2;
5033 for (p = input_basename; *p; p++)
5034 if (IS_DIR_SEPARATOR (*p))
5035 input_basename = p + 1;
5037 /* Find a suffix starting with the last period,
5038 and set basename_length to exclude that suffix. */
5039 basename_length = strlen (input_basename);
5040 suffixed_basename_length = basename_length;
5041 p = input_basename + basename_length;
5042 while (p != input_basename && *p != '.')
5044 if (*p == '.' && p != input_basename)
5046 basename_length = p - input_basename;
5047 input_suffix = p + 1;
5053 /* On fatal signals, delete all the temporary files. */
5056 fatal_error (signum)
5059 signal (signum, SIG_DFL);
5060 delete_failure_queue ();
5061 delete_temp_files ();
5062 /* Get the same signal again, this time not handled,
5063 so its normal effect occurs. */
5064 kill (getpid (), signum);
5067 extern int main PARAMS ((int, const char *const *));
5072 const char *const *argv;
5076 int linker_was_run = 0;
5077 char *explicit_link_files;
5080 struct user_specs *uptr;
5082 p = argv[0] + strlen (argv[0]);
5083 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
5087 #ifdef GCC_DRIVER_HOST_INITIALIZATION
5088 /* Perform host dependant initialization when needed. */
5089 GCC_DRIVER_HOST_INITIALIZATION;
5092 #ifdef HAVE_LC_MESSAGES
5093 setlocale (LC_MESSAGES, "");
5095 (void) bindtextdomain (PACKAGE, localedir);
5096 (void) textdomain (PACKAGE);
5098 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
5099 signal (SIGINT, fatal_error);
5101 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
5102 signal (SIGHUP, fatal_error);
5104 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
5105 signal (SIGTERM, fatal_error);
5107 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
5108 signal (SIGPIPE, fatal_error);
5112 argbuf = (const char **) xmalloc (argbuf_length * sizeof (const char *));
5114 obstack_init (&obstack);
5116 /* Build multilib_select, et. al from the separate lines that make up each
5117 multilib selection. */
5119 const char *const *q = multilib_raw;
5122 obstack_init (&multilib_obstack);
5123 while ((p = *q++) != (char *) 0)
5124 obstack_grow (&multilib_obstack, p, strlen (p));
5126 obstack_1grow (&multilib_obstack, 0);
5127 multilib_select = obstack_finish (&multilib_obstack);
5129 q = multilib_matches_raw;
5130 while ((p = *q++) != (char *) 0)
5131 obstack_grow (&multilib_obstack, p, strlen (p));
5133 obstack_1grow (&multilib_obstack, 0);
5134 multilib_matches = obstack_finish (&multilib_obstack);
5136 q = multilib_exclusions_raw;
5137 while ((p = *q++) != (char *) 0)
5138 obstack_grow (&multilib_obstack, p, strlen (p));
5140 obstack_1grow (&multilib_obstack, 0);
5141 multilib_exclusions = obstack_finish (&multilib_obstack);
5144 for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
5147 obstack_1grow (&multilib_obstack, ' ');
5148 obstack_grow (&multilib_obstack,
5149 multilib_defaults_raw[i],
5150 strlen (multilib_defaults_raw[i]));
5154 obstack_1grow (&multilib_obstack, 0);
5155 multilib_defaults = obstack_finish (&multilib_obstack);
5158 /* Set up to remember the pathname of gcc and any options
5159 needed for collect. We use argv[0] instead of programname because
5160 we need the complete pathname. */
5161 obstack_init (&collect_obstack);
5162 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
5163 obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1);
5164 putenv (obstack_finish (&collect_obstack));
5166 #ifdef INIT_ENVIRONMENT
5167 /* Set up any other necessary machine specific environment variables. */
5168 putenv (INIT_ENVIRONMENT);
5171 /* Make a table of what switches there are (switches, n_switches).
5172 Make a table of specified input files (infiles, n_infiles).
5173 Decode switches that are handled locally. */
5175 process_command (argc, argv);
5180 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5182 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5183 sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5186 for (i = 0; (int) i < n_switches; i++)
5188 const char *const *args;
5191 obstack_grow (&collect_obstack, " ", 1);
5194 obstack_grow (&collect_obstack, "'-", 2);
5195 q = switches[i].part1;
5196 while ((p = index (q, '\'')))
5198 obstack_grow (&collect_obstack, q, p - q);
5199 obstack_grow (&collect_obstack, "'\\''", 4);
5202 obstack_grow (&collect_obstack, q, strlen (q));
5203 obstack_grow (&collect_obstack, "'", 1);
5205 for (args = switches[i].args; args && *args; args++)
5207 obstack_grow (&collect_obstack, " '", 2);
5209 while ((p = index (q, '\'')))
5211 obstack_grow (&collect_obstack, q, p - q);
5212 obstack_grow (&collect_obstack, "'\\''", 4);
5215 obstack_grow (&collect_obstack, q, strlen (q));
5216 obstack_grow (&collect_obstack, "'", 1);
5219 obstack_grow (&collect_obstack, "\0", 1);
5220 putenv (obstack_finish (&collect_obstack));
5223 /* Initialize the vector of specs to just the default.
5224 This means one element containing 0s, as a terminator. */
5226 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
5227 bcopy ((char *) default_compilers, (char *) compilers,
5228 sizeof default_compilers);
5229 n_compilers = n_default_compilers;
5231 /* Read specs from a file if there is one. */
5233 machine_suffix = concat (spec_machine, dir_separator_str,
5234 spec_version, dir_separator_str, NULL_PTR);
5235 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
5237 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
5238 /* Read the specs file unless it is a default one. */
5239 if (specs_file != 0 && strcmp (specs_file, "specs"))
5240 read_specs (specs_file, TRUE);
5244 /* We need to check standard_exec_prefix/just_machine_suffix/specs
5245 for any override of as, ld and libraries. */
5246 specs_file = (char *) alloca (strlen (standard_exec_prefix)
5247 + strlen (just_machine_suffix)
5248 + sizeof ("specs"));
5250 strcpy (specs_file, standard_exec_prefix);
5251 strcat (specs_file, just_machine_suffix);
5252 strcat (specs_file, "specs");
5253 if (access (specs_file, R_OK) == 0)
5254 read_specs (specs_file, TRUE);
5256 /* If not cross-compiling, look for startfiles in the standard places. */
5257 if (*cross_compile == '0')
5259 #ifdef MD_EXEC_PREFIX
5260 add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
5261 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5262 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC",
5263 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5266 #ifdef MD_STARTFILE_PREFIX
5267 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
5268 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5271 #ifdef MD_STARTFILE_PREFIX_1
5272 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
5273 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5276 /* If standard_startfile_prefix is relative, base it on
5277 standard_exec_prefix. This lets us move the installed tree
5278 as a unit. If GCC_EXEC_PREFIX is defined, base
5279 standard_startfile_prefix on that as well. */
5280 if (IS_DIR_SEPARATOR (*standard_startfile_prefix)
5281 || *standard_startfile_prefix == '$'
5282 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5283 /* Check for disk name on MS-DOS-based systems. */
5284 || (standard_startfile_prefix[1] == ':'
5285 && (IS_DIR_SEPARATOR (standard_startfile_prefix[2])))
5288 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
5289 PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5292 if (gcc_exec_prefix)
5293 add_prefix (&startfile_prefixes,
5294 concat (gcc_exec_prefix, machine_suffix,
5295 standard_startfile_prefix, NULL_PTR),
5296 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5297 add_prefix (&startfile_prefixes,
5298 concat (standard_exec_prefix,
5300 standard_startfile_prefix, NULL_PTR),
5301 NULL_PTR, PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5304 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
5305 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5306 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
5307 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5308 #if 0 /* Can cause surprises, and one can use -B./ instead. */
5309 add_prefix (&startfile_prefixes, "./", NULL_PTR,
5310 PREFIX_PRIORITY_LAST, 1, NULL_PTR);
5315 if (!IS_DIR_SEPARATOR (*standard_startfile_prefix) && gcc_exec_prefix)
5316 add_prefix (&startfile_prefixes,
5317 concat (gcc_exec_prefix, machine_suffix,
5318 standard_startfile_prefix, NULL_PTR),
5319 "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL_PTR);
5322 /* Process any user specified specs in the order given on the command
5324 for (uptr = user_specs_head; uptr; uptr = uptr->next)
5326 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
5327 read_specs (filename ? filename : uptr->filename, FALSE);
5330 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
5331 if (gcc_exec_prefix)
5333 char *temp = (char *) xmalloc (strlen (gcc_exec_prefix)
5334 + strlen (spec_version)
5335 + strlen (spec_machine) + 3);
5336 strcpy (temp, gcc_exec_prefix);
5337 strcat (temp, spec_machine);
5338 strcat (temp, dir_separator_str);
5339 strcat (temp, spec_version);
5340 strcat (temp, dir_separator_str);
5341 gcc_exec_prefix = temp;
5344 /* Now we have the specs.
5345 Set the `valid' bits for switches that match anything in any spec. */
5347 validate_all_switches ();
5349 /* Now that we have the switches and the specs, set
5350 the subdirectory based on the options. */
5351 set_multilib_dir ();
5353 /* Warn about any switches that no pass was interested in. */
5355 for (i = 0; (int) i < n_switches; i++)
5356 if (! switches[i].validated)
5357 error ("unrecognized option `-%s'", switches[i].part1);
5359 /* Obey some of the options. */
5361 if (print_search_dirs)
5363 printf (_("install: %s%s\n"), standard_exec_prefix, machine_suffix);
5364 printf (_("programs: %s\n"), build_search_list (&exec_prefixes, "", 0));
5365 printf (_("libraries: %s\n"), build_search_list (&startfile_prefixes, "", 0));
5369 if (print_file_name)
5371 printf ("%s\n", find_file (print_file_name));
5375 if (print_prog_name)
5377 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
5378 printf ("%s\n", (newname ? newname : print_prog_name));
5382 if (print_multi_lib)
5384 print_multilib_info ();
5388 if (print_multi_directory)
5390 if (multilib_dir == NULL)
5393 printf ("%s\n", multilib_dir);
5397 if (print_help_list)
5403 printf (_("\nFor bug reporting instructions, please see:\n"));
5404 printf ("%s.\n", GCCBUGURL);
5409 /* We do not exit here. Instead we have created a fake input file
5410 called 'help-dummy' which needs to be compiled, and we pass this
5411 on the the various sub-processes, along with the --help switch. */
5418 /* compiler_version is truncated at the first space when initialized
5419 from version string, so truncate version_string at the first space
5420 before comparing. */
5421 for (n = 0; version_string[n]; n++)
5422 if (version_string[n] == ' ')
5425 if (! strncmp (version_string, compiler_version, n)
5426 && compiler_version[n] == 0)
5427 notice ("gcc version %s\n", version_string);
5429 notice ("gcc driver version %s executing gcc version %s\n",
5430 version_string, compiler_version);
5436 if (n_infiles == added_libraries)
5437 fatal ("No input files");
5439 /* Make a place to record the compiler output file names
5440 that correspond to the input files. */
5443 i += lang_specific_extra_outfiles;
5444 outfiles = (const char **) xcalloc (i, sizeof (char *));
5446 /* Record which files were specified explicitly as link input. */
5448 explicit_link_files = xcalloc (1, n_infiles);
5450 for (i = 0; (int) i < n_infiles; i++)
5452 register struct compiler *cp = 0;
5453 int this_file_error = 0;
5455 /* Tell do_spec what to substitute for %i. */
5457 input_file_number = i;
5458 set_input (infiles[i].name);
5460 /* Use the same thing in %o, unless cp->spec says otherwise. */
5462 outfiles[i] = input_filename;
5464 /* Figure out which compiler from the file's suffix. */
5466 cp = lookup_compiler (infiles[i].name, input_filename_length,
5467 infiles[i].language);
5471 /* Ok, we found an applicable compiler. Run its spec. */
5473 if (cp->spec[0] == '#')
5474 error ("%s: %s compiler not installed on this system",
5475 input_filename, &cp->spec[1]);
5476 value = do_spec (cp->spec);
5478 this_file_error = 1;
5481 /* If this file's name does not contain a recognized suffix,
5482 record it as explicit linker input. */
5485 explicit_link_files[i] = 1;
5487 /* Clear the delete-on-failure queue, deleting the files in it
5488 if this compilation failed. */
5490 if (this_file_error)
5492 delete_failure_queue ();
5495 /* If this compilation succeeded, don't delete those files later. */
5496 clear_failure_queue ();
5499 /* Reset the output file name to the first input file name, for use
5500 with %b in LINK_SPEC on a target that prefers not to emit a.out
5503 set_input (infiles[0].name);
5505 if (error_count == 0)
5507 /* Make sure INPUT_FILE_NUMBER points to first available open
5509 input_file_number = n_infiles;
5510 if (lang_specific_pre_link ())
5514 /* Run ld to link all the compiler output files. */
5516 if (error_count == 0)
5518 int tmp = execution_count;
5520 /* We'll use ld if we can't find collect2. */
5521 if (! strcmp (linker_name_spec, "collect2"))
5523 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5525 linker_name_spec = "ld";
5527 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5529 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH");
5530 putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV);
5532 value = do_spec (link_command_spec);
5535 linker_was_run = (tmp != execution_count);
5538 /* If options said don't run linker,
5539 complain about input files to be given to the linker. */
5541 if (! linker_was_run && error_count == 0)
5542 for (i = 0; (int) i < n_infiles; i++)
5543 if (explicit_link_files[i])
5544 error ("%s: linker input file unused since linking not done",
5547 /* Delete some or all of the temporary files we made. */
5550 delete_failure_queue ();
5551 delete_temp_files ();
5553 if (print_help_list)
5555 printf (("\nFor bug reporting instructions, please see:\n"));
5556 printf ("%s\n", GCCBUGURL);
5559 return (signal_count != 0 ? 2
5560 : error_count > 0 ? (pass_exit_codes ? greatest_status : 1)
5564 /* Find the proper compilation spec for the file name NAME,
5565 whose length is LENGTH. LANGUAGE is the specified language,
5566 or 0 if this file is to be passed to the linker. */
5568 static struct compiler *
5569 lookup_compiler (name, length, language)
5572 const char *language;
5574 struct compiler *cp;
5576 /* If this was specified by the user to be a linker input, indicate that. */
5577 if (language != 0 && language[0] == '*')
5580 /* Otherwise, look for the language, if one is spec'd. */
5583 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5584 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5587 error ("language %s not recognized", language);
5591 /* Look for a suffix. */
5592 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5594 if (/* The suffix `-' matches only the file name `-'. */
5595 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5596 || (strlen (cp->suffix) < length
5597 /* See if the suffix matches the end of NAME. */
5598 && !strcmp (cp->suffix,
5599 name + length - strlen (cp->suffix))
5604 #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
5605 /* look again, but case-insensitively this time. */
5607 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5609 if (/* The suffix `-' matches only the file name `-'. */
5610 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5611 || (strlen (cp->suffix) < length
5612 /* See if the suffix matches the end of NAME. */
5613 && ((!strcmp (cp->suffix,
5614 name + length - strlen (cp->suffix))
5615 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5616 && !strcasecmp (cp->suffix,
5617 name + length - strlen (cp->suffix)))
5623 if (cp >= compilers)
5625 if (cp->spec[0] != '@')
5626 /* A non-alias entry: return it. */
5629 /* An alias entry maps a suffix to a language.
5630 Search for the language; pass 0 for NAME and LENGTH
5631 to avoid infinite recursion if language not found. */
5632 return lookup_compiler (NULL_PTR, 0, cp->spec + 1);
5638 save_string (s, len)
5642 register char *result = xmalloc (len + 1);
5644 bcopy (s, result, len);
5650 pfatal_with_name (name)
5653 perror_with_name (name);
5654 delete_temp_files ();
5659 perror_with_name (name)
5662 error ("%s: %s", name, xstrerror (errno));
5666 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5667 const char *errmsg_fmt;
5668 const char *errmsg_arg;
5672 int save_errno = errno;
5674 /* Space for trailing '\0' is in %s. */
5675 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5676 sprintf (msg, errmsg_fmt, errmsg_arg);
5682 pfatal_with_name (errmsg_fmt);
5685 /* Output an error message and exit */
5690 fatal ("Internal gcc abort.");
5693 /* Output an error message and exit */
5696 fatal VPARAMS ((const char *msgid, ...))
5698 #ifndef ANSI_PROTOTYPES
5703 VA_START (ap, msgid);
5705 #ifndef ANSI_PROTOTYPES
5706 msgid = va_arg (ap, const char *);
5709 fprintf (stderr, "%s: ", programname);
5710 vfprintf (stderr, _(msgid), ap);
5712 fprintf (stderr, "\n");
5713 delete_temp_files ();
5718 error VPARAMS ((const char *msgid, ...))
5720 #ifndef ANSI_PROTOTYPES
5725 VA_START (ap, msgid);
5727 #ifndef ANSI_PROTOTYPES
5728 msgid = va_arg (ap, const char *);
5731 fprintf (stderr, "%s: ", programname);
5732 vfprintf (stderr, _(msgid), ap);
5735 fprintf (stderr, "\n");
5739 notice VPARAMS ((const char *msgid, ...))
5741 #ifndef ANSI_PROTOTYPES
5746 VA_START (ap, msgid);
5748 #ifndef ANSI_PROTOTYPES
5749 msgid = va_arg (ap, const char *);
5752 vfprintf (stderr, _(msgid), ap);
5757 validate_all_switches ()
5759 struct compiler *comp;
5760 register const char *p;
5762 struct spec_list *spec;
5764 for (comp = compilers; comp->spec; comp++)
5768 if (c == '%' && *p == '{')
5769 /* We have a switch spec. */
5770 validate_switches (p + 1);
5773 /* Look through the linked list of specs read from the specs file. */
5774 for (spec = specs; spec; spec = spec->next)
5776 p = *(spec->ptr_spec);
5778 if (c == '%' && *p == '{')
5779 /* We have a switch spec. */
5780 validate_switches (p + 1);
5783 p = link_command_spec;
5785 if (c == '%' && *p == '{')
5786 /* We have a switch spec. */
5787 validate_switches (p + 1);
5790 /* Look at the switch-name that comes after START
5791 and mark as valid all supplied switches that match it. */
5794 validate_switches (start)
5797 register const char *p = start;
5812 while (*p != ':' && *p != '}')
5817 else if (p[-1] == '*')
5819 /* Mark all matching switches as valid. */
5821 for (i = 0; i < n_switches; i++)
5822 if (!strncmp (switches[i].part1, filter, p - filter))
5823 switches[i].validated = 1;
5827 /* Mark an exact matching switch as valid. */
5828 for (i = 0; i < n_switches; i++)
5830 if (!strncmp (switches[i].part1, filter, p - filter)
5831 && switches[i].part1[p - filter] == 0)
5832 switches[i].validated = 1;
5837 /* Check whether a particular argument was used. The first time we
5838 canonicalize the switches to keep only the ones we care about. */
5848 const char *replace;
5853 static struct mswitchstr *mswitches;
5854 static int n_mswitches;
5859 struct mswitchstr *matches;
5863 /* Break multilib_matches into the component strings of string
5864 and replacement string. */
5865 for (q = multilib_matches; *q != '\0'; q++)
5870 (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5872 q = multilib_matches;
5882 matches[i].len = q - matches[i].str;
5884 matches[i].replace = ++q;
5885 while (*q != ';' && *q != '\0')
5891 matches[i].rep_len = q - matches[i].replace;
5897 /* Now build a list of the replacement string for switches that we care
5898 about. Make sure we allocate at least one entry. This prevents
5899 xmalloc from calling fatal, and prevents us from re-executing this
5902 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5903 * (n_switches ? n_switches : 1));
5904 for (i = 0; i < n_switches; i++)
5906 int xlen = strlen (switches[i].part1);
5907 for (j = 0; j < cnt; j++)
5908 if (xlen == matches[j].len
5909 && ! strncmp (switches[i].part1, matches[j].str, xlen))
5911 mswitches[n_mswitches].str = matches[j].replace;
5912 mswitches[n_mswitches].len = matches[j].rep_len;
5913 mswitches[n_mswitches].replace = (char *) 0;
5914 mswitches[n_mswitches].rep_len = 0;
5921 for (i = 0; i < n_mswitches; i++)
5922 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5929 default_arg (p, len)
5933 const char *start, *end;
5935 for (start = multilib_defaults; *start != '\0'; start = end + 1)
5937 while (*start == ' ' || *start == '\t')
5943 for (end = start + 1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5946 if ((end - start) == len && strncmp (p, start, len) == 0)
5956 /* Work out the subdirectory to use based on the options. The format of
5957 multilib_select is a list of elements. Each element is a subdirectory
5958 name followed by a list of options followed by a semicolon. The format
5959 of multilib_exclusions is the same, but without the preceding
5960 directory. First gcc will check the exclusions, if none of the options
5961 beginning with an exclamation point are present, and all of the other
5962 options are present, then we will ignore this completely. Passing
5963 that, gcc will consider each multilib_select in turn using the same
5964 rules for matching the options. If a match is found, that subdirectory
5971 unsigned int this_path_len;
5972 const char *this_path, *this_arg;
5976 p = multilib_exclusions;
5979 /* Ignore newlines. */
5986 /* Check the arguments. */
6000 while (*p != ' ' && *p != ';')
6007 if (*this_arg != '!')
6015 ok = used_arg (this_arg, p - this_arg);
6029 p = multilib_select;
6032 /* Ignore newlines. */
6039 /* Get the initial path. */
6047 this_path_len = p - this_path;
6049 /* Check the arguments. */
6064 while (*p != ' ' && *p != ';')
6071 if (*this_arg != '!')
6079 /* If this is a default argument, we can just ignore it.
6080 This is true even if this_arg begins with '!'. Beginning
6081 with '!' does not mean that this argument is necessarily
6082 inappropriate for this library: it merely means that
6083 there is a more specific library which uses this
6084 argument. If this argument is a default, we need not
6085 consider that more specific library. */
6086 if (! default_arg (this_arg, p - this_arg))
6088 ok = used_arg (this_arg, p - this_arg);
6099 if (this_path_len != 1
6100 || this_path[0] != '.')
6102 char *new_multilib_dir = xmalloc (this_path_len + 1);
6103 strncpy (new_multilib_dir, this_path, this_path_len);
6104 new_multilib_dir[this_path_len] = '\0';
6105 multilib_dir = new_multilib_dir;
6114 /* Print out the multiple library subdirectory selection
6115 information. This prints out a series of lines. Each line looks
6116 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
6117 required. Only the desired options are printed out, the negative
6118 matches. The options are print without a leading dash. There are
6119 no spaces to make it easy to use the information in the shell.
6120 Each subdirectory is printed only once. This assumes the ordering
6121 generated by the genmultilib script. Also, we leave out ones that match
6125 print_multilib_info ()
6127 const char *p = multilib_select;
6128 const char *last_path = 0, *this_path;
6130 unsigned int last_path_len = 0;
6135 /* Ignore newlines. */
6142 /* Get the initial path. */
6151 /* Check for matches with the multilib_exclusions. We don't bother
6152 with the '!' in either list. If any of the exclusion rules match
6153 all of its options with the select rule, we skip it. */
6155 const char *e = multilib_exclusions;
6156 const char *this_arg;
6161 /* Ignore newlines. */
6168 /* Check the arguments. */
6185 while (*e != ' ' && *e != ';')
6196 int len = e - this_arg;
6203 while (*q != ' ' && *q != ';')
6210 if (! strncmp (arg, this_arg, (len < q - arg) ? q - arg : len) ||
6211 default_arg (this_arg, e - this_arg))
6241 /* If this is a duplicate, skip it. */
6242 skip = (last_path != 0 && (unsigned int) (p - this_path) == last_path_len
6243 && ! strncmp (last_path, this_path, last_path_len));
6245 last_path = this_path;
6246 last_path_len = p - this_path;
6249 /* If this directory requires any default arguments, we can skip
6250 it. We will already have printed a directory identical to
6251 this one which does not require that default argument. */
6269 while (*q != ' ' && *q != ';')
6277 && default_arg (arg, q - arg))
6292 for (p1 = last_path; p1 < p; p1++)
6311 use_arg = *p != '!';
6316 while (*p != ' ' && *p != ';')
6331 /* If there are extra options, print them now. */
6332 if (multilib_extra && *multilib_extra)
6334 int print_at = TRUE;
6337 for (q = multilib_extra; *q != '\0'; q++)